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>
27 #include <scsi/scsi.h>
28 #include <scsi/scsi_cmnd.h>
29 #include <scsi/scsi_device.h>
30 #include <scsi/scsi_host.h>
31 #include <scsi/scsi_transport_fc.h>
32 #include <scsi/fc/fc_fs.h>
33 #include <linux/aer.h>
38 #include "lpfc_sli4.h"
40 #include "lpfc_disc.h"
41 #include "lpfc_scsi.h"
43 #include "lpfc_crtn.h"
44 #include "lpfc_logmsg.h"
45 #include "lpfc_compat.h"
46 #include "lpfc_debugfs.h"
47 #include "lpfc_vport.h"
49 /* There are only four IOCB completion types. */
50 typedef enum _lpfc_iocb_type
{
58 /* Provide function prototypes local to this module. */
59 static int lpfc_sli_issue_mbox_s4(struct lpfc_hba
*, LPFC_MBOXQ_t
*,
61 static int lpfc_sli4_read_rev(struct lpfc_hba
*, LPFC_MBOXQ_t
*,
62 uint8_t *, uint32_t *);
63 static struct lpfc_iocbq
*lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba
*,
65 static void lpfc_sli4_send_seq_to_ulp(struct lpfc_vport
*,
68 lpfc_get_iocb_from_iocbq(struct lpfc_iocbq
*iocbq
)
74 * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
75 * @q: The Work Queue to operate on.
76 * @wqe: The work Queue Entry to put on the Work queue.
78 * This routine will copy the contents of @wqe to the next available entry on
79 * the @q. This function will then ring the Work Queue Doorbell to signal the
80 * HBA to start processing the Work Queue Entry. This function returns 0 if
81 * successful. If no entries are available on @q then this function will return
83 * The caller is expected to hold the hbalock when calling this routine.
86 lpfc_sli4_wq_put(struct lpfc_queue
*q
, union lpfc_wqe
*wqe
)
88 union lpfc_wqe
*temp_wqe
= q
->qe
[q
->host_index
].wqe
;
89 struct lpfc_register doorbell
;
92 /* If the host has not yet processed the next entry then we are done */
93 if (((q
->host_index
+ 1) % q
->entry_count
) == q
->hba_index
)
95 /* set consumption flag every once in a while */
96 if (!((q
->host_index
+ 1) % LPFC_RELEASE_NOTIFICATION_INTERVAL
))
97 bf_set(lpfc_wqe_gen_wqec
, &wqe
->generic
, 1);
99 lpfc_sli_pcimem_bcopy(wqe
, temp_wqe
, q
->entry_size
);
101 /* Update the host index before invoking device */
102 host_index
= q
->host_index
;
103 q
->host_index
= ((q
->host_index
+ 1) % q
->entry_count
);
107 bf_set(lpfc_wq_doorbell_num_posted
, &doorbell
, 1);
108 bf_set(lpfc_wq_doorbell_index
, &doorbell
, host_index
);
109 bf_set(lpfc_wq_doorbell_id
, &doorbell
, q
->queue_id
);
110 writel(doorbell
.word0
, q
->phba
->sli4_hba
.WQDBregaddr
);
111 readl(q
->phba
->sli4_hba
.WQDBregaddr
); /* Flush */
117 * lpfc_sli4_wq_release - Updates internal hba index for WQ
118 * @q: The Work Queue to operate on.
119 * @index: The index to advance the hba index to.
121 * This routine will update the HBA index of a queue to reflect consumption of
122 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
123 * an entry the host calls this function to update the queue's internal
124 * pointers. This routine returns the number of entries that were consumed by
128 lpfc_sli4_wq_release(struct lpfc_queue
*q
, uint32_t index
)
130 uint32_t released
= 0;
132 if (q
->hba_index
== index
)
135 q
->hba_index
= ((q
->hba_index
+ 1) % q
->entry_count
);
137 } while (q
->hba_index
!= index
);
142 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
143 * @q: The Mailbox Queue to operate on.
144 * @wqe: The Mailbox Queue Entry to put on the Work queue.
146 * This routine will copy the contents of @mqe to the next available entry on
147 * the @q. This function will then ring the Work Queue Doorbell to signal the
148 * HBA to start processing the Work Queue Entry. This function returns 0 if
149 * successful. If no entries are available on @q then this function will return
151 * The caller is expected to hold the hbalock when calling this routine.
154 lpfc_sli4_mq_put(struct lpfc_queue
*q
, struct lpfc_mqe
*mqe
)
156 struct lpfc_mqe
*temp_mqe
= q
->qe
[q
->host_index
].mqe
;
157 struct lpfc_register doorbell
;
160 /* If the host has not yet processed the next entry then we are done */
161 if (((q
->host_index
+ 1) % q
->entry_count
) == q
->hba_index
)
163 lpfc_sli_pcimem_bcopy(mqe
, temp_mqe
, q
->entry_size
);
164 /* Save off the mailbox pointer for completion */
165 q
->phba
->mbox
= (MAILBOX_t
*)temp_mqe
;
167 /* Update the host index before invoking device */
168 host_index
= q
->host_index
;
169 q
->host_index
= ((q
->host_index
+ 1) % q
->entry_count
);
173 bf_set(lpfc_mq_doorbell_num_posted
, &doorbell
, 1);
174 bf_set(lpfc_mq_doorbell_id
, &doorbell
, q
->queue_id
);
175 writel(doorbell
.word0
, q
->phba
->sli4_hba
.MQDBregaddr
);
176 readl(q
->phba
->sli4_hba
.MQDBregaddr
); /* Flush */
181 * lpfc_sli4_mq_release - Updates internal hba index for MQ
182 * @q: The Mailbox Queue to operate on.
184 * This routine will update the HBA index of a queue to reflect consumption of
185 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
186 * an entry the host calls this function to update the queue's internal
187 * pointers. This routine returns the number of entries that were consumed by
191 lpfc_sli4_mq_release(struct lpfc_queue
*q
)
193 /* Clear the mailbox pointer for completion */
194 q
->phba
->mbox
= NULL
;
195 q
->hba_index
= ((q
->hba_index
+ 1) % q
->entry_count
);
200 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
201 * @q: The Event Queue to get the first valid EQE from
203 * This routine will get the first valid Event Queue Entry from @q, update
204 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
205 * the Queue (no more work to do), or the Queue is full of EQEs that have been
206 * processed, but not popped back to the HBA then this routine will return NULL.
208 static struct lpfc_eqe
*
209 lpfc_sli4_eq_get(struct lpfc_queue
*q
)
211 struct lpfc_eqe
*eqe
= q
->qe
[q
->hba_index
].eqe
;
213 /* If the next EQE is not valid then we are done */
214 if (!bf_get(lpfc_eqe_valid
, eqe
))
216 /* If the host has not yet processed the next entry then we are done */
217 if (((q
->hba_index
+ 1) % q
->entry_count
) == q
->host_index
)
220 q
->hba_index
= ((q
->hba_index
+ 1) % q
->entry_count
);
225 * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
226 * @q: The Event Queue that the host has completed processing for.
227 * @arm: Indicates whether the host wants to arms this CQ.
229 * This routine will mark all Event Queue Entries on @q, from the last
230 * known completed entry to the last entry that was processed, as completed
231 * by clearing the valid bit for each completion queue entry. Then it will
232 * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
233 * The internal host index in the @q will be updated by this routine to indicate
234 * that the host has finished processing the entries. The @arm parameter
235 * indicates that the queue should be rearmed when ringing the doorbell.
237 * This function will return the number of EQEs that were popped.
240 lpfc_sli4_eq_release(struct lpfc_queue
*q
, bool arm
)
242 uint32_t released
= 0;
243 struct lpfc_eqe
*temp_eqe
;
244 struct lpfc_register doorbell
;
246 /* while there are valid entries */
247 while (q
->hba_index
!= q
->host_index
) {
248 temp_eqe
= q
->qe
[q
->host_index
].eqe
;
249 bf_set(lpfc_eqe_valid
, temp_eqe
, 0);
251 q
->host_index
= ((q
->host_index
+ 1) % q
->entry_count
);
253 if (unlikely(released
== 0 && !arm
))
256 /* ring doorbell for number popped */
259 bf_set(lpfc_eqcq_doorbell_arm
, &doorbell
, 1);
260 bf_set(lpfc_eqcq_doorbell_eqci
, &doorbell
, 1);
262 bf_set(lpfc_eqcq_doorbell_num_released
, &doorbell
, released
);
263 bf_set(lpfc_eqcq_doorbell_qt
, &doorbell
, LPFC_QUEUE_TYPE_EVENT
);
264 bf_set(lpfc_eqcq_doorbell_eqid
, &doorbell
, q
->queue_id
);
265 writel(doorbell
.word0
, q
->phba
->sli4_hba
.EQCQDBregaddr
);
266 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
267 if ((q
->phba
->intr_type
== INTx
) && (arm
== LPFC_QUEUE_REARM
))
268 readl(q
->phba
->sli4_hba
.EQCQDBregaddr
);
273 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
274 * @q: The Completion Queue to get the first valid CQE from
276 * This routine will get the first valid Completion Queue Entry from @q, update
277 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
278 * the Queue (no more work to do), or the Queue is full of CQEs that have been
279 * processed, but not popped back to the HBA then this routine will return NULL.
281 static struct lpfc_cqe
*
282 lpfc_sli4_cq_get(struct lpfc_queue
*q
)
284 struct lpfc_cqe
*cqe
;
286 /* If the next CQE is not valid then we are done */
287 if (!bf_get(lpfc_cqe_valid
, q
->qe
[q
->hba_index
].cqe
))
289 /* If the host has not yet processed the next entry then we are done */
290 if (((q
->hba_index
+ 1) % q
->entry_count
) == q
->host_index
)
293 cqe
= q
->qe
[q
->hba_index
].cqe
;
294 q
->hba_index
= ((q
->hba_index
+ 1) % q
->entry_count
);
299 * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ
300 * @q: The Completion Queue that the host has completed processing for.
301 * @arm: Indicates whether the host wants to arms this CQ.
303 * This routine will mark all Completion queue entries on @q, from the last
304 * known completed entry to the last entry that was processed, as completed
305 * by clearing the valid bit for each completion queue entry. Then it will
306 * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
307 * The internal host index in the @q will be updated by this routine to indicate
308 * that the host has finished processing the entries. The @arm parameter
309 * indicates that the queue should be rearmed when ringing the doorbell.
311 * This function will return the number of CQEs that were released.
314 lpfc_sli4_cq_release(struct lpfc_queue
*q
, bool arm
)
316 uint32_t released
= 0;
317 struct lpfc_cqe
*temp_qe
;
318 struct lpfc_register doorbell
;
320 /* while there are valid entries */
321 while (q
->hba_index
!= q
->host_index
) {
322 temp_qe
= q
->qe
[q
->host_index
].cqe
;
323 bf_set(lpfc_cqe_valid
, temp_qe
, 0);
325 q
->host_index
= ((q
->host_index
+ 1) % q
->entry_count
);
327 if (unlikely(released
== 0 && !arm
))
330 /* ring doorbell for number popped */
333 bf_set(lpfc_eqcq_doorbell_arm
, &doorbell
, 1);
334 bf_set(lpfc_eqcq_doorbell_num_released
, &doorbell
, released
);
335 bf_set(lpfc_eqcq_doorbell_qt
, &doorbell
, LPFC_QUEUE_TYPE_COMPLETION
);
336 bf_set(lpfc_eqcq_doorbell_cqid
, &doorbell
, q
->queue_id
);
337 writel(doorbell
.word0
, q
->phba
->sli4_hba
.EQCQDBregaddr
);
342 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
343 * @q: The Header Receive Queue to operate on.
344 * @wqe: The Receive Queue Entry to put on the Receive queue.
346 * This routine will copy the contents of @wqe to the next available entry on
347 * the @q. This function will then ring the Receive Queue Doorbell to signal the
348 * HBA to start processing the Receive Queue Entry. This function returns the
349 * index that the rqe was copied to if successful. If no entries are available
350 * on @q then this function will return -ENOMEM.
351 * The caller is expected to hold the hbalock when calling this routine.
354 lpfc_sli4_rq_put(struct lpfc_queue
*hq
, struct lpfc_queue
*dq
,
355 struct lpfc_rqe
*hrqe
, struct lpfc_rqe
*drqe
)
357 struct lpfc_rqe
*temp_hrqe
= hq
->qe
[hq
->host_index
].rqe
;
358 struct lpfc_rqe
*temp_drqe
= dq
->qe
[dq
->host_index
].rqe
;
359 struct lpfc_register doorbell
;
360 int put_index
= hq
->host_index
;
362 if (hq
->type
!= LPFC_HRQ
|| dq
->type
!= LPFC_DRQ
)
364 if (hq
->host_index
!= dq
->host_index
)
366 /* If the host has not yet processed the next entry then we are done */
367 if (((hq
->host_index
+ 1) % hq
->entry_count
) == hq
->hba_index
)
369 lpfc_sli_pcimem_bcopy(hrqe
, temp_hrqe
, hq
->entry_size
);
370 lpfc_sli_pcimem_bcopy(drqe
, temp_drqe
, dq
->entry_size
);
372 /* Update the host index to point to the next slot */
373 hq
->host_index
= ((hq
->host_index
+ 1) % hq
->entry_count
);
374 dq
->host_index
= ((dq
->host_index
+ 1) % dq
->entry_count
);
376 /* Ring The Header Receive Queue Doorbell */
377 if (!(hq
->host_index
% LPFC_RQ_POST_BATCH
)) {
379 bf_set(lpfc_rq_doorbell_num_posted
, &doorbell
,
381 bf_set(lpfc_rq_doorbell_id
, &doorbell
, hq
->queue_id
);
382 writel(doorbell
.word0
, hq
->phba
->sli4_hba
.RQDBregaddr
);
388 * lpfc_sli4_rq_release - Updates internal hba index for RQ
389 * @q: The Header Receive Queue to operate on.
391 * This routine will update the HBA index of a queue to reflect consumption of
392 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
393 * consumed an entry the host calls this function to update the queue's
394 * internal pointers. This routine returns the number of entries that were
395 * consumed by the HBA.
398 lpfc_sli4_rq_release(struct lpfc_queue
*hq
, struct lpfc_queue
*dq
)
400 if ((hq
->type
!= LPFC_HRQ
) || (dq
->type
!= LPFC_DRQ
))
402 hq
->hba_index
= ((hq
->hba_index
+ 1) % hq
->entry_count
);
403 dq
->hba_index
= ((dq
->hba_index
+ 1) % dq
->entry_count
);
408 * lpfc_cmd_iocb - Get next command iocb entry in the ring
409 * @phba: Pointer to HBA context object.
410 * @pring: Pointer to driver SLI ring object.
412 * This function returns pointer to next command iocb entry
413 * in the command ring. The caller must hold hbalock to prevent
414 * other threads consume the next command iocb.
415 * SLI-2/SLI-3 provide different sized iocbs.
417 static inline IOCB_t
*
418 lpfc_cmd_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
420 return (IOCB_t
*) (((char *) pring
->cmdringaddr
) +
421 pring
->cmdidx
* phba
->iocb_cmd_size
);
425 * lpfc_resp_iocb - Get next response iocb entry in the ring
426 * @phba: Pointer to HBA context object.
427 * @pring: Pointer to driver SLI ring object.
429 * This function returns pointer to next response iocb entry
430 * in the response ring. The caller must hold hbalock to make sure
431 * that no other thread consume the next response iocb.
432 * SLI-2/SLI-3 provide different sized iocbs.
434 static inline IOCB_t
*
435 lpfc_resp_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
437 return (IOCB_t
*) (((char *) pring
->rspringaddr
) +
438 pring
->rspidx
* phba
->iocb_rsp_size
);
442 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
443 * @phba: Pointer to HBA context object.
445 * This function is called with hbalock held. This function
446 * allocates a new driver iocb object from the iocb pool. If the
447 * allocation is successful, it returns pointer to the newly
448 * allocated iocb object else it returns NULL.
450 static struct lpfc_iocbq
*
451 __lpfc_sli_get_iocbq(struct lpfc_hba
*phba
)
453 struct list_head
*lpfc_iocb_list
= &phba
->lpfc_iocb_list
;
454 struct lpfc_iocbq
* iocbq
= NULL
;
456 list_remove_head(lpfc_iocb_list
, iocbq
, struct lpfc_iocbq
, list
);
461 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
462 * @phba: Pointer to HBA context object.
463 * @xritag: XRI value.
465 * This function clears the sglq pointer from the array of acive
466 * sglq's. The xritag that is passed in is used to index into the
467 * array. Before the xritag can be used it needs to be adjusted
468 * by subtracting the xribase.
470 * Returns sglq ponter = success, NULL = Failure.
472 static struct lpfc_sglq
*
473 __lpfc_clear_active_sglq(struct lpfc_hba
*phba
, uint16_t xritag
)
476 struct lpfc_sglq
*sglq
;
477 adj_xri
= xritag
- phba
->sli4_hba
.max_cfg_param
.xri_base
;
478 if (adj_xri
> phba
->sli4_hba
.max_cfg_param
.max_xri
)
480 sglq
= phba
->sli4_hba
.lpfc_sglq_active_list
[adj_xri
];
481 phba
->sli4_hba
.lpfc_sglq_active_list
[adj_xri
] = NULL
;
486 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
487 * @phba: Pointer to HBA context object.
488 * @xritag: XRI value.
490 * This function returns the sglq pointer from the array of acive
491 * sglq's. The xritag that is passed in is used to index into the
492 * array. Before the xritag can be used it needs to be adjusted
493 * by subtracting the xribase.
495 * Returns sglq ponter = success, NULL = Failure.
498 __lpfc_get_active_sglq(struct lpfc_hba
*phba
, uint16_t xritag
)
501 struct lpfc_sglq
*sglq
;
502 adj_xri
= xritag
- phba
->sli4_hba
.max_cfg_param
.xri_base
;
503 if (adj_xri
> phba
->sli4_hba
.max_cfg_param
.max_xri
)
505 sglq
= phba
->sli4_hba
.lpfc_sglq_active_list
[adj_xri
];
510 * __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool
511 * @phba: Pointer to HBA context object.
513 * This function is called with hbalock held. This function
514 * Gets a new driver sglq object from the sglq list. If the
515 * list is not empty then it is successful, it returns pointer to the newly
516 * allocated sglq object else it returns NULL.
518 static struct lpfc_sglq
*
519 __lpfc_sli_get_sglq(struct lpfc_hba
*phba
)
521 struct list_head
*lpfc_sgl_list
= &phba
->sli4_hba
.lpfc_sgl_list
;
522 struct lpfc_sglq
*sglq
= NULL
;
524 list_remove_head(lpfc_sgl_list
, sglq
, struct lpfc_sglq
, list
);
527 adj_xri
= sglq
->sli4_xritag
- phba
->sli4_hba
.max_cfg_param
.xri_base
;
528 phba
->sli4_hba
.lpfc_sglq_active_list
[adj_xri
] = sglq
;
529 sglq
->state
= SGL_ALLOCATED
;
534 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
535 * @phba: Pointer to HBA context object.
537 * This function is called with no lock held. This function
538 * allocates a new driver iocb object from the iocb pool. If the
539 * allocation is successful, it returns pointer to the newly
540 * allocated iocb object else it returns NULL.
543 lpfc_sli_get_iocbq(struct lpfc_hba
*phba
)
545 struct lpfc_iocbq
* iocbq
= NULL
;
546 unsigned long iflags
;
548 spin_lock_irqsave(&phba
->hbalock
, iflags
);
549 iocbq
= __lpfc_sli_get_iocbq(phba
);
550 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
555 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
556 * @phba: Pointer to HBA context object.
557 * @iocbq: Pointer to driver iocb object.
559 * This function is called with hbalock held to release driver
560 * iocb object to the iocb pool. The iotag in the iocb object
561 * does not change for each use of the iocb object. This function
562 * clears all other fields of the iocb object when it is freed.
563 * The sqlq structure that holds the xritag and phys and virtual
564 * mappings for the scatter gather list is retrieved from the
565 * active array of sglq. The get of the sglq pointer also clears
566 * the entry in the array. If the status of the IO indiactes that
567 * this IO was aborted then the sglq entry it put on the
568 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
569 * IO has good status or fails for any other reason then the sglq
570 * entry is added to the free list (lpfc_sgl_list).
573 __lpfc_sli_release_iocbq_s4(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
575 struct lpfc_sglq
*sglq
;
576 size_t start_clean
= offsetof(struct lpfc_iocbq
, iocb
);
579 if (iocbq
->sli4_xritag
== NO_XRI
)
582 sglq
= __lpfc_clear_active_sglq(phba
, iocbq
->sli4_xritag
);
584 if ((iocbq
->iocb_flag
& LPFC_EXCHANGE_BUSY
) &&
585 (sglq
->state
!= SGL_XRI_ABORTED
)) {
586 spin_lock_irqsave(&phba
->sli4_hba
.abts_sgl_list_lock
,
588 list_add(&sglq
->list
,
589 &phba
->sli4_hba
.lpfc_abts_els_sgl_list
);
590 spin_unlock_irqrestore(
591 &phba
->sli4_hba
.abts_sgl_list_lock
, iflag
);
593 sglq
->state
= SGL_FREED
;
594 list_add(&sglq
->list
, &phba
->sli4_hba
.lpfc_sgl_list
);
600 * Clean all volatile data fields, preserve iotag and node struct.
602 memset((char *)iocbq
+ start_clean
, 0, sizeof(*iocbq
) - start_clean
);
603 iocbq
->sli4_xritag
= NO_XRI
;
604 list_add_tail(&iocbq
->list
, &phba
->lpfc_iocb_list
);
608 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
609 * @phba: Pointer to HBA context object.
610 * @iocbq: Pointer to driver iocb object.
612 * This function is called with hbalock held to release driver
613 * iocb object to the iocb pool. The iotag in the iocb object
614 * does not change for each use of the iocb object. This function
615 * clears all other fields of the iocb object when it is freed.
618 __lpfc_sli_release_iocbq_s3(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
620 size_t start_clean
= offsetof(struct lpfc_iocbq
, iocb
);
623 * Clean all volatile data fields, preserve iotag and node struct.
625 memset((char*)iocbq
+ start_clean
, 0, sizeof(*iocbq
) - start_clean
);
626 iocbq
->sli4_xritag
= NO_XRI
;
627 list_add_tail(&iocbq
->list
, &phba
->lpfc_iocb_list
);
631 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
632 * @phba: Pointer to HBA context object.
633 * @iocbq: Pointer to driver iocb object.
635 * This function is called with hbalock held to release driver
636 * iocb object to the iocb pool. The iotag in the iocb object
637 * does not change for each use of the iocb object. This function
638 * clears all other fields of the iocb object when it is freed.
641 __lpfc_sli_release_iocbq(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
643 phba
->__lpfc_sli_release_iocbq(phba
, iocbq
);
647 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
648 * @phba: Pointer to HBA context object.
649 * @iocbq: Pointer to driver iocb object.
651 * This function is called with no lock held to release the iocb to
655 lpfc_sli_release_iocbq(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
657 unsigned long iflags
;
660 * Clean all volatile data fields, preserve iotag and node struct.
662 spin_lock_irqsave(&phba
->hbalock
, iflags
);
663 __lpfc_sli_release_iocbq(phba
, iocbq
);
664 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
668 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
669 * @phba: Pointer to HBA context object.
670 * @iocblist: List of IOCBs.
671 * @ulpstatus: ULP status in IOCB command field.
672 * @ulpWord4: ULP word-4 in IOCB command field.
674 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
675 * on the list by invoking the complete callback function associated with the
676 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
680 lpfc_sli_cancel_iocbs(struct lpfc_hba
*phba
, struct list_head
*iocblist
,
681 uint32_t ulpstatus
, uint32_t ulpWord4
)
683 struct lpfc_iocbq
*piocb
;
685 while (!list_empty(iocblist
)) {
686 list_remove_head(iocblist
, piocb
, struct lpfc_iocbq
, list
);
688 if (!piocb
->iocb_cmpl
)
689 lpfc_sli_release_iocbq(phba
, piocb
);
691 piocb
->iocb
.ulpStatus
= ulpstatus
;
692 piocb
->iocb
.un
.ulpWord
[4] = ulpWord4
;
693 (piocb
->iocb_cmpl
) (phba
, piocb
, piocb
);
700 * lpfc_sli_iocb_cmd_type - Get the iocb type
701 * @iocb_cmnd: iocb command code.
703 * This function is called by ring event handler function to get the iocb type.
704 * This function translates the iocb command to an iocb command type used to
705 * decide the final disposition of each completed IOCB.
706 * The function returns
707 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
708 * LPFC_SOL_IOCB if it is a solicited iocb completion
709 * LPFC_ABORT_IOCB if it is an abort iocb
710 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
712 * The caller is not required to hold any lock.
714 static lpfc_iocb_type
715 lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd
)
717 lpfc_iocb_type type
= LPFC_UNKNOWN_IOCB
;
719 if (iocb_cmnd
> CMD_MAX_IOCB_CMD
)
723 case CMD_XMIT_SEQUENCE_CR
:
724 case CMD_XMIT_SEQUENCE_CX
:
725 case CMD_XMIT_BCAST_CN
:
726 case CMD_XMIT_BCAST_CX
:
727 case CMD_ELS_REQUEST_CR
:
728 case CMD_ELS_REQUEST_CX
:
729 case CMD_CREATE_XRI_CR
:
730 case CMD_CREATE_XRI_CX
:
732 case CMD_XMIT_ELS_RSP_CX
:
734 case CMD_FCP_IWRITE_CR
:
735 case CMD_FCP_IWRITE_CX
:
736 case CMD_FCP_IREAD_CR
:
737 case CMD_FCP_IREAD_CX
:
738 case CMD_FCP_ICMND_CR
:
739 case CMD_FCP_ICMND_CX
:
740 case CMD_FCP_TSEND_CX
:
741 case CMD_FCP_TRSP_CX
:
742 case CMD_FCP_TRECEIVE_CX
:
743 case CMD_FCP_AUTO_TRSP_CX
:
744 case CMD_ADAPTER_MSG
:
745 case CMD_ADAPTER_DUMP
:
746 case CMD_XMIT_SEQUENCE64_CR
:
747 case CMD_XMIT_SEQUENCE64_CX
:
748 case CMD_XMIT_BCAST64_CN
:
749 case CMD_XMIT_BCAST64_CX
:
750 case CMD_ELS_REQUEST64_CR
:
751 case CMD_ELS_REQUEST64_CX
:
752 case CMD_FCP_IWRITE64_CR
:
753 case CMD_FCP_IWRITE64_CX
:
754 case CMD_FCP_IREAD64_CR
:
755 case CMD_FCP_IREAD64_CX
:
756 case CMD_FCP_ICMND64_CR
:
757 case CMD_FCP_ICMND64_CX
:
758 case CMD_FCP_TSEND64_CX
:
759 case CMD_FCP_TRSP64_CX
:
760 case CMD_FCP_TRECEIVE64_CX
:
761 case CMD_GEN_REQUEST64_CR
:
762 case CMD_GEN_REQUEST64_CX
:
763 case CMD_XMIT_ELS_RSP64_CX
:
764 case DSSCMD_IWRITE64_CR
:
765 case DSSCMD_IWRITE64_CX
:
766 case DSSCMD_IREAD64_CR
:
767 case DSSCMD_IREAD64_CX
:
768 type
= LPFC_SOL_IOCB
;
770 case CMD_ABORT_XRI_CN
:
771 case CMD_ABORT_XRI_CX
:
772 case CMD_CLOSE_XRI_CN
:
773 case CMD_CLOSE_XRI_CX
:
774 case CMD_XRI_ABORTED_CX
:
775 case CMD_ABORT_MXRI64_CN
:
776 case CMD_XMIT_BLS_RSP64_CX
:
777 type
= LPFC_ABORT_IOCB
;
779 case CMD_RCV_SEQUENCE_CX
:
780 case CMD_RCV_ELS_REQ_CX
:
781 case CMD_RCV_SEQUENCE64_CX
:
782 case CMD_RCV_ELS_REQ64_CX
:
783 case CMD_ASYNC_STATUS
:
784 case CMD_IOCB_RCV_SEQ64_CX
:
785 case CMD_IOCB_RCV_ELS64_CX
:
786 case CMD_IOCB_RCV_CONT64_CX
:
787 case CMD_IOCB_RET_XRI64_CX
:
788 type
= LPFC_UNSOL_IOCB
;
790 case CMD_IOCB_XMIT_MSEQ64_CR
:
791 case CMD_IOCB_XMIT_MSEQ64_CX
:
792 case CMD_IOCB_RCV_SEQ_LIST64_CX
:
793 case CMD_IOCB_RCV_ELS_LIST64_CX
:
794 case CMD_IOCB_CLOSE_EXTENDED_CN
:
795 case CMD_IOCB_ABORT_EXTENDED_CN
:
796 case CMD_IOCB_RET_HBQE64_CN
:
797 case CMD_IOCB_FCP_IBIDIR64_CR
:
798 case CMD_IOCB_FCP_IBIDIR64_CX
:
799 case CMD_IOCB_FCP_ITASKMGT64_CX
:
800 case CMD_IOCB_LOGENTRY_CN
:
801 case CMD_IOCB_LOGENTRY_ASYNC_CN
:
802 printk("%s - Unhandled SLI-3 Command x%x\n",
803 __func__
, iocb_cmnd
);
804 type
= LPFC_UNKNOWN_IOCB
;
807 type
= LPFC_UNKNOWN_IOCB
;
815 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
816 * @phba: Pointer to HBA context object.
818 * This function is called from SLI initialization code
819 * to configure every ring of the HBA's SLI interface. The
820 * caller is not required to hold any lock. This function issues
821 * a config_ring mailbox command for each ring.
822 * This function returns zero if successful else returns a negative
826 lpfc_sli_ring_map(struct lpfc_hba
*phba
)
828 struct lpfc_sli
*psli
= &phba
->sli
;
833 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
837 phba
->link_state
= LPFC_INIT_MBX_CMDS
;
838 for (i
= 0; i
< psli
->num_rings
; i
++) {
839 lpfc_config_ring(phba
, i
, pmb
);
840 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
841 if (rc
!= MBX_SUCCESS
) {
842 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
843 "0446 Adapter failed to init (%d), "
844 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
846 rc
, pmbox
->mbxCommand
,
847 pmbox
->mbxStatus
, i
);
848 phba
->link_state
= LPFC_HBA_ERROR
;
853 mempool_free(pmb
, phba
->mbox_mem_pool
);
858 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
859 * @phba: Pointer to HBA context object.
860 * @pring: Pointer to driver SLI ring object.
861 * @piocb: Pointer to the driver iocb object.
863 * This function is called with hbalock held. The function adds the
864 * new iocb to txcmplq of the given ring. This function always returns
865 * 0. If this function is called for ELS ring, this function checks if
866 * there is a vport associated with the ELS command. This function also
867 * starts els_tmofunc timer if this is an ELS command.
870 lpfc_sli_ringtxcmpl_put(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
871 struct lpfc_iocbq
*piocb
)
873 list_add_tail(&piocb
->list
, &pring
->txcmplq
);
874 pring
->txcmplq_cnt
++;
875 if ((unlikely(pring
->ringno
== LPFC_ELS_RING
)) &&
876 (piocb
->iocb
.ulpCommand
!= CMD_ABORT_XRI_CN
) &&
877 (piocb
->iocb
.ulpCommand
!= CMD_CLOSE_XRI_CN
)) {
881 mod_timer(&piocb
->vport
->els_tmofunc
,
882 jiffies
+ HZ
* (phba
->fc_ratov
<< 1));
890 * lpfc_sli_ringtx_get - Get first element of the txq
891 * @phba: Pointer to HBA context object.
892 * @pring: Pointer to driver SLI ring object.
894 * This function is called with hbalock held to get next
895 * iocb in txq of the given ring. If there is any iocb in
896 * the txq, the function returns first iocb in the list after
897 * removing the iocb from the list, else it returns NULL.
899 static struct lpfc_iocbq
*
900 lpfc_sli_ringtx_get(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
902 struct lpfc_iocbq
*cmd_iocb
;
904 list_remove_head((&pring
->txq
), cmd_iocb
, struct lpfc_iocbq
, list
);
905 if (cmd_iocb
!= NULL
)
911 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
912 * @phba: Pointer to HBA context object.
913 * @pring: Pointer to driver SLI ring object.
915 * This function is called with hbalock held and the caller must post the
916 * iocb without releasing the lock. If the caller releases the lock,
917 * iocb slot returned by the function is not guaranteed to be available.
918 * The function returns pointer to the next available iocb slot if there
919 * is available slot in the ring, else it returns NULL.
920 * If the get index of the ring is ahead of the put index, the function
921 * will post an error attention event to the worker thread to take the
922 * HBA to offline state.
925 lpfc_sli_next_iocb_slot (struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
927 struct lpfc_pgp
*pgp
= &phba
->port_gp
[pring
->ringno
];
928 uint32_t max_cmd_idx
= pring
->numCiocb
;
929 if ((pring
->next_cmdidx
== pring
->cmdidx
) &&
930 (++pring
->next_cmdidx
>= max_cmd_idx
))
931 pring
->next_cmdidx
= 0;
933 if (unlikely(pring
->local_getidx
== pring
->next_cmdidx
)) {
935 pring
->local_getidx
= le32_to_cpu(pgp
->cmdGetInx
);
937 if (unlikely(pring
->local_getidx
>= max_cmd_idx
)) {
938 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
939 "0315 Ring %d issue: portCmdGet %d "
940 "is bigger than cmd ring %d\n",
942 pring
->local_getidx
, max_cmd_idx
);
944 phba
->link_state
= LPFC_HBA_ERROR
;
946 * All error attention handlers are posted to
949 phba
->work_ha
|= HA_ERATT
;
950 phba
->work_hs
= HS_FFER3
;
952 lpfc_worker_wake_up(phba
);
957 if (pring
->local_getidx
== pring
->next_cmdidx
)
961 return lpfc_cmd_iocb(phba
, pring
);
965 * lpfc_sli_next_iotag - Get an iotag for the iocb
966 * @phba: Pointer to HBA context object.
967 * @iocbq: Pointer to driver iocb object.
969 * This function gets an iotag for the iocb. If there is no unused iotag and
970 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
971 * array and assigns a new iotag.
972 * The function returns the allocated iotag if successful, else returns zero.
973 * Zero is not a valid iotag.
974 * The caller is not required to hold any lock.
977 lpfc_sli_next_iotag(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
979 struct lpfc_iocbq
**new_arr
;
980 struct lpfc_iocbq
**old_arr
;
982 struct lpfc_sli
*psli
= &phba
->sli
;
985 spin_lock_irq(&phba
->hbalock
);
986 iotag
= psli
->last_iotag
;
987 if(++iotag
< psli
->iocbq_lookup_len
) {
988 psli
->last_iotag
= iotag
;
989 psli
->iocbq_lookup
[iotag
] = iocbq
;
990 spin_unlock_irq(&phba
->hbalock
);
991 iocbq
->iotag
= iotag
;
993 } else if (psli
->iocbq_lookup_len
< (0xffff
994 - LPFC_IOCBQ_LOOKUP_INCREMENT
)) {
995 new_len
= psli
->iocbq_lookup_len
+ LPFC_IOCBQ_LOOKUP_INCREMENT
;
996 spin_unlock_irq(&phba
->hbalock
);
997 new_arr
= kzalloc(new_len
* sizeof (struct lpfc_iocbq
*),
1000 spin_lock_irq(&phba
->hbalock
);
1001 old_arr
= psli
->iocbq_lookup
;
1002 if (new_len
<= psli
->iocbq_lookup_len
) {
1003 /* highly unprobable case */
1005 iotag
= psli
->last_iotag
;
1006 if(++iotag
< psli
->iocbq_lookup_len
) {
1007 psli
->last_iotag
= iotag
;
1008 psli
->iocbq_lookup
[iotag
] = iocbq
;
1009 spin_unlock_irq(&phba
->hbalock
);
1010 iocbq
->iotag
= iotag
;
1013 spin_unlock_irq(&phba
->hbalock
);
1016 if (psli
->iocbq_lookup
)
1017 memcpy(new_arr
, old_arr
,
1018 ((psli
->last_iotag
+ 1) *
1019 sizeof (struct lpfc_iocbq
*)));
1020 psli
->iocbq_lookup
= new_arr
;
1021 psli
->iocbq_lookup_len
= new_len
;
1022 psli
->last_iotag
= iotag
;
1023 psli
->iocbq_lookup
[iotag
] = iocbq
;
1024 spin_unlock_irq(&phba
->hbalock
);
1025 iocbq
->iotag
= iotag
;
1030 spin_unlock_irq(&phba
->hbalock
);
1032 lpfc_printf_log(phba
, KERN_ERR
,LOG_SLI
,
1033 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1040 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
1041 * @phba: Pointer to HBA context object.
1042 * @pring: Pointer to driver SLI ring object.
1043 * @iocb: Pointer to iocb slot in the ring.
1044 * @nextiocb: Pointer to driver iocb object which need to be
1045 * posted to firmware.
1047 * This function is called with hbalock held to post a new iocb to
1048 * the firmware. This function copies the new iocb to ring iocb slot and
1049 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1050 * a completion call back for this iocb else the function will free the
1054 lpfc_sli_submit_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
1055 IOCB_t
*iocb
, struct lpfc_iocbq
*nextiocb
)
1060 nextiocb
->iocb
.ulpIoTag
= (nextiocb
->iocb_cmpl
) ? nextiocb
->iotag
: 0;
1063 if (pring
->ringno
== LPFC_ELS_RING
) {
1064 lpfc_debugfs_slow_ring_trc(phba
,
1065 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1066 *(((uint32_t *) &nextiocb
->iocb
) + 4),
1067 *(((uint32_t *) &nextiocb
->iocb
) + 6),
1068 *(((uint32_t *) &nextiocb
->iocb
) + 7));
1072 * Issue iocb command to adapter
1074 lpfc_sli_pcimem_bcopy(&nextiocb
->iocb
, iocb
, phba
->iocb_cmd_size
);
1076 pring
->stats
.iocb_cmd
++;
1079 * If there is no completion routine to call, we can release the
1080 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1081 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1083 if (nextiocb
->iocb_cmpl
)
1084 lpfc_sli_ringtxcmpl_put(phba
, pring
, nextiocb
);
1086 __lpfc_sli_release_iocbq(phba
, nextiocb
);
1089 * Let the HBA know what IOCB slot will be the next one the
1090 * driver will put a command into.
1092 pring
->cmdidx
= pring
->next_cmdidx
;
1093 writel(pring
->cmdidx
, &phba
->host_gp
[pring
->ringno
].cmdPutInx
);
1097 * lpfc_sli_update_full_ring - Update the chip attention register
1098 * @phba: Pointer to HBA context object.
1099 * @pring: Pointer to driver SLI ring object.
1101 * The caller is not required to hold any lock for calling this function.
1102 * This function updates the chip attention bits for the ring to inform firmware
1103 * that there are pending work to be done for this ring and requests an
1104 * interrupt when there is space available in the ring. This function is
1105 * called when the driver is unable to post more iocbs to the ring due
1106 * to unavailability of space in the ring.
1109 lpfc_sli_update_full_ring(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
1111 int ringno
= pring
->ringno
;
1113 pring
->flag
|= LPFC_CALL_RING_AVAILABLE
;
1118 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1119 * The HBA will tell us when an IOCB entry is available.
1121 writel((CA_R0ATT
|CA_R0CE_REQ
) << (ringno
*4), phba
->CAregaddr
);
1122 readl(phba
->CAregaddr
); /* flush */
1124 pring
->stats
.iocb_cmd_full
++;
1128 * lpfc_sli_update_ring - Update chip attention register
1129 * @phba: Pointer to HBA context object.
1130 * @pring: Pointer to driver SLI ring object.
1132 * This function updates the chip attention register bit for the
1133 * given ring to inform HBA that there is more work to be done
1134 * in this ring. The caller is not required to hold any lock.
1137 lpfc_sli_update_ring(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
1139 int ringno
= pring
->ringno
;
1142 * Tell the HBA that there is work to do in this ring.
1144 if (!(phba
->sli3_options
& LPFC_SLI3_CRP_ENABLED
)) {
1146 writel(CA_R0ATT
<< (ringno
* 4), phba
->CAregaddr
);
1147 readl(phba
->CAregaddr
); /* flush */
1152 * lpfc_sli_resume_iocb - Process iocbs in the txq
1153 * @phba: Pointer to HBA context object.
1154 * @pring: Pointer to driver SLI ring object.
1156 * This function is called with hbalock held to post pending iocbs
1157 * in the txq to the firmware. This function is called when driver
1158 * detects space available in the ring.
1161 lpfc_sli_resume_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
1164 struct lpfc_iocbq
*nextiocb
;
1168 * (a) there is anything on the txq to send
1170 * (c) link attention events can be processed (fcp ring only)
1171 * (d) IOCB processing is not blocked by the outstanding mbox command.
1173 if (pring
->txq_cnt
&&
1174 lpfc_is_link_up(phba
) &&
1175 (pring
->ringno
!= phba
->sli
.fcp_ring
||
1176 phba
->sli
.sli_flag
& LPFC_PROCESS_LA
)) {
1178 while ((iocb
= lpfc_sli_next_iocb_slot(phba
, pring
)) &&
1179 (nextiocb
= lpfc_sli_ringtx_get(phba
, pring
)))
1180 lpfc_sli_submit_iocb(phba
, pring
, iocb
, nextiocb
);
1183 lpfc_sli_update_ring(phba
, pring
);
1185 lpfc_sli_update_full_ring(phba
, pring
);
1192 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
1193 * @phba: Pointer to HBA context object.
1194 * @hbqno: HBQ number.
1196 * This function is called with hbalock held to get the next
1197 * available slot for the given HBQ. If there is free slot
1198 * available for the HBQ it will return pointer to the next available
1199 * HBQ entry else it will return NULL.
1201 static struct lpfc_hbq_entry
*
1202 lpfc_sli_next_hbq_slot(struct lpfc_hba
*phba
, uint32_t hbqno
)
1204 struct hbq_s
*hbqp
= &phba
->hbqs
[hbqno
];
1206 if (hbqp
->next_hbqPutIdx
== hbqp
->hbqPutIdx
&&
1207 ++hbqp
->next_hbqPutIdx
>= hbqp
->entry_count
)
1208 hbqp
->next_hbqPutIdx
= 0;
1210 if (unlikely(hbqp
->local_hbqGetIdx
== hbqp
->next_hbqPutIdx
)) {
1211 uint32_t raw_index
= phba
->hbq_get
[hbqno
];
1212 uint32_t getidx
= le32_to_cpu(raw_index
);
1214 hbqp
->local_hbqGetIdx
= getidx
;
1216 if (unlikely(hbqp
->local_hbqGetIdx
>= hbqp
->entry_count
)) {
1217 lpfc_printf_log(phba
, KERN_ERR
,
1218 LOG_SLI
| LOG_VPORT
,
1219 "1802 HBQ %d: local_hbqGetIdx "
1220 "%u is > than hbqp->entry_count %u\n",
1221 hbqno
, hbqp
->local_hbqGetIdx
,
1224 phba
->link_state
= LPFC_HBA_ERROR
;
1228 if (hbqp
->local_hbqGetIdx
== hbqp
->next_hbqPutIdx
)
1232 return (struct lpfc_hbq_entry
*) phba
->hbqs
[hbqno
].hbq_virt
+
1237 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
1238 * @phba: Pointer to HBA context object.
1240 * This function is called with no lock held to free all the
1241 * hbq buffers while uninitializing the SLI interface. It also
1242 * frees the HBQ buffers returned by the firmware but not yet
1243 * processed by the upper layers.
1246 lpfc_sli_hbqbuf_free_all(struct lpfc_hba
*phba
)
1248 struct lpfc_dmabuf
*dmabuf
, *next_dmabuf
;
1249 struct hbq_dmabuf
*hbq_buf
;
1250 unsigned long flags
;
1254 hbq_count
= lpfc_sli_hbq_count();
1255 /* Return all memory used by all HBQs */
1256 spin_lock_irqsave(&phba
->hbalock
, flags
);
1257 for (i
= 0; i
< hbq_count
; ++i
) {
1258 list_for_each_entry_safe(dmabuf
, next_dmabuf
,
1259 &phba
->hbqs
[i
].hbq_buffer_list
, list
) {
1260 hbq_buf
= container_of(dmabuf
, struct hbq_dmabuf
, dbuf
);
1261 list_del(&hbq_buf
->dbuf
.list
);
1262 (phba
->hbqs
[i
].hbq_free_buffer
)(phba
, hbq_buf
);
1264 phba
->hbqs
[i
].buffer_count
= 0;
1266 /* Return all HBQ buffer that are in-fly */
1267 list_for_each_entry_safe(dmabuf
, next_dmabuf
, &phba
->rb_pend_list
,
1269 hbq_buf
= container_of(dmabuf
, struct hbq_dmabuf
, dbuf
);
1270 list_del(&hbq_buf
->dbuf
.list
);
1271 if (hbq_buf
->tag
== -1) {
1272 (phba
->hbqs
[LPFC_ELS_HBQ
].hbq_free_buffer
)
1275 hbqno
= hbq_buf
->tag
>> 16;
1276 if (hbqno
>= LPFC_MAX_HBQS
)
1277 (phba
->hbqs
[LPFC_ELS_HBQ
].hbq_free_buffer
)
1280 (phba
->hbqs
[hbqno
].hbq_free_buffer
)(phba
,
1285 /* Mark the HBQs not in use */
1286 phba
->hbq_in_use
= 0;
1287 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
1291 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
1292 * @phba: Pointer to HBA context object.
1293 * @hbqno: HBQ number.
1294 * @hbq_buf: Pointer to HBQ buffer.
1296 * This function is called with the hbalock held to post a
1297 * hbq buffer to the firmware. If the function finds an empty
1298 * slot in the HBQ, it will post the buffer. The function will return
1299 * pointer to the hbq entry if it successfully post the buffer
1300 * else it will return NULL.
1303 lpfc_sli_hbq_to_firmware(struct lpfc_hba
*phba
, uint32_t hbqno
,
1304 struct hbq_dmabuf
*hbq_buf
)
1306 return phba
->lpfc_sli_hbq_to_firmware(phba
, hbqno
, hbq_buf
);
1310 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
1311 * @phba: Pointer to HBA context object.
1312 * @hbqno: HBQ number.
1313 * @hbq_buf: Pointer to HBQ buffer.
1315 * This function is called with the hbalock held to post a hbq buffer to the
1316 * firmware. If the function finds an empty slot in the HBQ, it will post the
1317 * buffer and place it on the hbq_buffer_list. The function will return zero if
1318 * it successfully post the buffer else it will return an error.
1321 lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba
*phba
, uint32_t hbqno
,
1322 struct hbq_dmabuf
*hbq_buf
)
1324 struct lpfc_hbq_entry
*hbqe
;
1325 dma_addr_t physaddr
= hbq_buf
->dbuf
.phys
;
1327 /* Get next HBQ entry slot to use */
1328 hbqe
= lpfc_sli_next_hbq_slot(phba
, hbqno
);
1330 struct hbq_s
*hbqp
= &phba
->hbqs
[hbqno
];
1332 hbqe
->bde
.addrHigh
= le32_to_cpu(putPaddrHigh(physaddr
));
1333 hbqe
->bde
.addrLow
= le32_to_cpu(putPaddrLow(physaddr
));
1334 hbqe
->bde
.tus
.f
.bdeSize
= hbq_buf
->size
;
1335 hbqe
->bde
.tus
.f
.bdeFlags
= 0;
1336 hbqe
->bde
.tus
.w
= le32_to_cpu(hbqe
->bde
.tus
.w
);
1337 hbqe
->buffer_tag
= le32_to_cpu(hbq_buf
->tag
);
1339 hbqp
->hbqPutIdx
= hbqp
->next_hbqPutIdx
;
1340 writel(hbqp
->hbqPutIdx
, phba
->hbq_put
+ hbqno
);
1342 readl(phba
->hbq_put
+ hbqno
);
1343 list_add_tail(&hbq_buf
->dbuf
.list
, &hbqp
->hbq_buffer_list
);
1350 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
1351 * @phba: Pointer to HBA context object.
1352 * @hbqno: HBQ number.
1353 * @hbq_buf: Pointer to HBQ buffer.
1355 * This function is called with the hbalock held to post an RQE to the SLI4
1356 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
1357 * the hbq_buffer_list and return zero, otherwise it will return an error.
1360 lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba
*phba
, uint32_t hbqno
,
1361 struct hbq_dmabuf
*hbq_buf
)
1364 struct lpfc_rqe hrqe
;
1365 struct lpfc_rqe drqe
;
1367 hrqe
.address_lo
= putPaddrLow(hbq_buf
->hbuf
.phys
);
1368 hrqe
.address_hi
= putPaddrHigh(hbq_buf
->hbuf
.phys
);
1369 drqe
.address_lo
= putPaddrLow(hbq_buf
->dbuf
.phys
);
1370 drqe
.address_hi
= putPaddrHigh(hbq_buf
->dbuf
.phys
);
1371 rc
= lpfc_sli4_rq_put(phba
->sli4_hba
.hdr_rq
, phba
->sli4_hba
.dat_rq
,
1376 list_add_tail(&hbq_buf
->dbuf
.list
, &phba
->hbqs
[hbqno
].hbq_buffer_list
);
1380 /* HBQ for ELS and CT traffic. */
1381 static struct lpfc_hbq_init lpfc_els_hbq
= {
1386 .ring_mask
= (1 << LPFC_ELS_RING
),
1392 /* HBQ for the extra ring if needed */
1393 static struct lpfc_hbq_init lpfc_extra_hbq
= {
1398 .ring_mask
= (1 << LPFC_EXTRA_RING
),
1405 struct lpfc_hbq_init
*lpfc_hbq_defs
[] = {
1411 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
1412 * @phba: Pointer to HBA context object.
1413 * @hbqno: HBQ number.
1414 * @count: Number of HBQ buffers to be posted.
1416 * This function is called with no lock held to post more hbq buffers to the
1417 * given HBQ. The function returns the number of HBQ buffers successfully
1421 lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba
*phba
, uint32_t hbqno
, uint32_t count
)
1423 uint32_t i
, posted
= 0;
1424 unsigned long flags
;
1425 struct hbq_dmabuf
*hbq_buffer
;
1426 LIST_HEAD(hbq_buf_list
);
1427 if (!phba
->hbqs
[hbqno
].hbq_alloc_buffer
)
1430 if ((phba
->hbqs
[hbqno
].buffer_count
+ count
) >
1431 lpfc_hbq_defs
[hbqno
]->entry_count
)
1432 count
= lpfc_hbq_defs
[hbqno
]->entry_count
-
1433 phba
->hbqs
[hbqno
].buffer_count
;
1436 /* Allocate HBQ entries */
1437 for (i
= 0; i
< count
; i
++) {
1438 hbq_buffer
= (phba
->hbqs
[hbqno
].hbq_alloc_buffer
)(phba
);
1441 list_add_tail(&hbq_buffer
->dbuf
.list
, &hbq_buf_list
);
1443 /* Check whether HBQ is still in use */
1444 spin_lock_irqsave(&phba
->hbalock
, flags
);
1445 if (!phba
->hbq_in_use
)
1447 while (!list_empty(&hbq_buf_list
)) {
1448 list_remove_head(&hbq_buf_list
, hbq_buffer
, struct hbq_dmabuf
,
1450 hbq_buffer
->tag
= (phba
->hbqs
[hbqno
].buffer_count
|
1452 if (!lpfc_sli_hbq_to_firmware(phba
, hbqno
, hbq_buffer
)) {
1453 phba
->hbqs
[hbqno
].buffer_count
++;
1456 (phba
->hbqs
[hbqno
].hbq_free_buffer
)(phba
, hbq_buffer
);
1458 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
1461 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
1462 while (!list_empty(&hbq_buf_list
)) {
1463 list_remove_head(&hbq_buf_list
, hbq_buffer
, struct hbq_dmabuf
,
1465 (phba
->hbqs
[hbqno
].hbq_free_buffer
)(phba
, hbq_buffer
);
1471 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
1472 * @phba: Pointer to HBA context object.
1475 * This function posts more buffers to the HBQ. This function
1476 * is called with no lock held. The function returns the number of HBQ entries
1477 * successfully allocated.
1480 lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba
*phba
, uint32_t qno
)
1482 if (phba
->sli_rev
== LPFC_SLI_REV4
)
1485 return lpfc_sli_hbqbuf_fill_hbqs(phba
, qno
,
1486 lpfc_hbq_defs
[qno
]->add_count
);
1490 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
1491 * @phba: Pointer to HBA context object.
1492 * @qno: HBQ queue number.
1494 * This function is called from SLI initialization code path with
1495 * no lock held to post initial HBQ buffers to firmware. The
1496 * function returns the number of HBQ entries successfully allocated.
1499 lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba
*phba
, uint32_t qno
)
1501 if (phba
->sli_rev
== LPFC_SLI_REV4
)
1502 return lpfc_sli_hbqbuf_fill_hbqs(phba
, qno
,
1503 lpfc_hbq_defs
[qno
]->entry_count
);
1505 return lpfc_sli_hbqbuf_fill_hbqs(phba
, qno
,
1506 lpfc_hbq_defs
[qno
]->init_count
);
1510 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
1511 * @phba: Pointer to HBA context object.
1512 * @hbqno: HBQ number.
1514 * This function removes the first hbq buffer on an hbq list and returns a
1515 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
1517 static struct hbq_dmabuf
*
1518 lpfc_sli_hbqbuf_get(struct list_head
*rb_list
)
1520 struct lpfc_dmabuf
*d_buf
;
1522 list_remove_head(rb_list
, d_buf
, struct lpfc_dmabuf
, list
);
1525 return container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
1529 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
1530 * @phba: Pointer to HBA context object.
1531 * @tag: Tag of the hbq buffer.
1533 * This function is called with hbalock held. This function searches
1534 * for the hbq buffer associated with the given tag in the hbq buffer
1535 * list. If it finds the hbq buffer, it returns the hbq_buffer other wise
1538 static struct hbq_dmabuf
*
1539 lpfc_sli_hbqbuf_find(struct lpfc_hba
*phba
, uint32_t tag
)
1541 struct lpfc_dmabuf
*d_buf
;
1542 struct hbq_dmabuf
*hbq_buf
;
1546 if (hbqno
>= LPFC_MAX_HBQS
)
1549 spin_lock_irq(&phba
->hbalock
);
1550 list_for_each_entry(d_buf
, &phba
->hbqs
[hbqno
].hbq_buffer_list
, list
) {
1551 hbq_buf
= container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
1552 if (hbq_buf
->tag
== tag
) {
1553 spin_unlock_irq(&phba
->hbalock
);
1557 spin_unlock_irq(&phba
->hbalock
);
1558 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
| LOG_VPORT
,
1559 "1803 Bad hbq tag. Data: x%x x%x\n",
1560 tag
, phba
->hbqs
[tag
>> 16].buffer_count
);
1565 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
1566 * @phba: Pointer to HBA context object.
1567 * @hbq_buffer: Pointer to HBQ buffer.
1569 * This function is called with hbalock. This function gives back
1570 * the hbq buffer to firmware. If the HBQ does not have space to
1571 * post the buffer, it will free the buffer.
1574 lpfc_sli_free_hbq(struct lpfc_hba
*phba
, struct hbq_dmabuf
*hbq_buffer
)
1579 hbqno
= hbq_buffer
->tag
>> 16;
1580 if (lpfc_sli_hbq_to_firmware(phba
, hbqno
, hbq_buffer
))
1581 (phba
->hbqs
[hbqno
].hbq_free_buffer
)(phba
, hbq_buffer
);
1586 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
1587 * @mbxCommand: mailbox command code.
1589 * This function is called by the mailbox event handler function to verify
1590 * that the completed mailbox command is a legitimate mailbox command. If the
1591 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
1592 * and the mailbox event handler will take the HBA offline.
1595 lpfc_sli_chk_mbx_command(uint8_t mbxCommand
)
1599 switch (mbxCommand
) {
1603 case MBX_WRITE_VPARMS
:
1604 case MBX_RUN_BIU_DIAG
:
1607 case MBX_CONFIG_LINK
:
1608 case MBX_CONFIG_RING
:
1609 case MBX_RESET_RING
:
1610 case MBX_READ_CONFIG
:
1611 case MBX_READ_RCONFIG
:
1612 case MBX_READ_SPARM
:
1613 case MBX_READ_STATUS
:
1617 case MBX_READ_LNK_STAT
:
1619 case MBX_UNREG_LOGIN
:
1622 case MBX_DUMP_MEMORY
:
1623 case MBX_DUMP_CONTEXT
:
1626 case MBX_UPDATE_CFG
:
1628 case MBX_DEL_LD_ENTRY
:
1629 case MBX_RUN_PROGRAM
:
1631 case MBX_SET_VARIABLE
:
1632 case MBX_UNREG_D_ID
:
1633 case MBX_KILL_BOARD
:
1634 case MBX_CONFIG_FARP
:
1637 case MBX_RUN_BIU_DIAG64
:
1638 case MBX_CONFIG_PORT
:
1639 case MBX_READ_SPARM64
:
1640 case MBX_READ_RPI64
:
1641 case MBX_REG_LOGIN64
:
1645 case MBX_LOAD_EXP_ROM
:
1646 case MBX_ASYNCEVT_ENABLE
:
1650 case MBX_PORT_CAPABILITIES
:
1651 case MBX_PORT_IOV_CONTROL
:
1652 case MBX_SLI4_CONFIG
:
1653 case MBX_SLI4_REQ_FTRS
:
1655 case MBX_UNREG_FCFI
:
1660 case MBX_RESUME_RPI
:
1671 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
1672 * @phba: Pointer to HBA context object.
1673 * @pmboxq: Pointer to mailbox command.
1675 * This is completion handler function for mailbox commands issued from
1676 * lpfc_sli_issue_mbox_wait function. This function is called by the
1677 * mailbox event handler function with no lock held. This function
1678 * will wake up thread waiting on the wait queue pointed by context1
1682 lpfc_sli_wake_mbox_wait(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmboxq
)
1684 wait_queue_head_t
*pdone_q
;
1685 unsigned long drvr_flag
;
1688 * If pdone_q is empty, the driver thread gave up waiting and
1689 * continued running.
1691 pmboxq
->mbox_flag
|= LPFC_MBX_WAKE
;
1692 spin_lock_irqsave(&phba
->hbalock
, drvr_flag
);
1693 pdone_q
= (wait_queue_head_t
*) pmboxq
->context1
;
1695 wake_up_interruptible(pdone_q
);
1696 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
1702 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
1703 * @phba: Pointer to HBA context object.
1704 * @pmb: Pointer to mailbox object.
1706 * This function is the default mailbox completion handler. It
1707 * frees the memory resources associated with the completed mailbox
1708 * command. If the completed command is a REG_LOGIN mailbox command,
1709 * this function will issue a UREG_LOGIN to re-claim the RPI.
1712 lpfc_sli_def_mbox_cmpl(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
1714 struct lpfc_dmabuf
*mp
;
1717 struct lpfc_vport
*vport
= pmb
->vport
;
1719 mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
1722 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
1726 if ((pmb
->u
.mb
.mbxCommand
== MBX_UNREG_LOGIN
) &&
1727 (phba
->sli_rev
== LPFC_SLI_REV4
))
1728 lpfc_sli4_free_rpi(phba
, pmb
->u
.mb
.un
.varUnregLogin
.rpi
);
1731 * If a REG_LOGIN succeeded after node is destroyed or node
1732 * is in re-discovery driver need to cleanup the RPI.
1734 if (!(phba
->pport
->load_flag
& FC_UNLOADING
) &&
1735 pmb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
&&
1736 !pmb
->u
.mb
.mbxStatus
) {
1737 rpi
= pmb
->u
.mb
.un
.varWords
[0];
1738 vpi
= pmb
->u
.mb
.un
.varRegLogin
.vpi
- phba
->vpi_base
;
1739 lpfc_unreg_login(phba
, vpi
, rpi
, pmb
);
1740 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
1741 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
1742 if (rc
!= MBX_NOT_FINISHED
)
1746 /* Unreg VPI, if the REG_VPI succeed after VLink failure */
1747 if ((pmb
->u
.mb
.mbxCommand
== MBX_REG_VPI
) &&
1748 !(phba
->pport
->load_flag
& FC_UNLOADING
) &&
1749 !pmb
->u
.mb
.mbxStatus
) {
1750 lpfc_unreg_vpi(phba
, pmb
->u
.mb
.un
.varRegVpi
.vpi
, pmb
);
1752 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
1753 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
1754 if (rc
!= MBX_NOT_FINISHED
)
1758 if (bf_get(lpfc_mqe_command
, &pmb
->u
.mqe
) == MBX_SLI4_CONFIG
)
1759 lpfc_sli4_mbox_cmd_free(phba
, pmb
);
1761 mempool_free(pmb
, phba
->mbox_mem_pool
);
1765 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
1766 * @phba: Pointer to HBA context object.
1768 * This function is called with no lock held. This function processes all
1769 * the completed mailbox commands and gives it to upper layers. The interrupt
1770 * service routine processes mailbox completion interrupt and adds completed
1771 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
1772 * Worker thread call lpfc_sli_handle_mb_event, which will return the
1773 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
1774 * function returns the mailbox commands to the upper layer by calling the
1775 * completion handler function of each mailbox.
1778 lpfc_sli_handle_mb_event(struct lpfc_hba
*phba
)
1785 phba
->sli
.slistat
.mbox_event
++;
1787 /* Get all completed mailboxe buffers into the cmplq */
1788 spin_lock_irq(&phba
->hbalock
);
1789 list_splice_init(&phba
->sli
.mboxq_cmpl
, &cmplq
);
1790 spin_unlock_irq(&phba
->hbalock
);
1792 /* Get a Mailbox buffer to setup mailbox commands for callback */
1794 list_remove_head(&cmplq
, pmb
, LPFC_MBOXQ_t
, list
);
1800 if (pmbox
->mbxCommand
!= MBX_HEARTBEAT
) {
1802 lpfc_debugfs_disc_trc(pmb
->vport
,
1803 LPFC_DISC_TRC_MBOX_VPORT
,
1804 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
1805 (uint32_t)pmbox
->mbxCommand
,
1806 pmbox
->un
.varWords
[0],
1807 pmbox
->un
.varWords
[1]);
1810 lpfc_debugfs_disc_trc(phba
->pport
,
1812 "MBOX cmpl: cmd:x%x mb:x%x x%x",
1813 (uint32_t)pmbox
->mbxCommand
,
1814 pmbox
->un
.varWords
[0],
1815 pmbox
->un
.varWords
[1]);
1820 * It is a fatal error if unknown mbox command completion.
1822 if (lpfc_sli_chk_mbx_command(pmbox
->mbxCommand
) ==
1824 /* Unknown mailbox command compl */
1825 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
1826 "(%d):0323 Unknown Mailbox command "
1828 pmb
->vport
? pmb
->vport
->vpi
: 0,
1830 lpfc_sli4_mbox_opcode_get(phba
, pmb
));
1831 phba
->link_state
= LPFC_HBA_ERROR
;
1832 phba
->work_hs
= HS_FFER3
;
1833 lpfc_handle_eratt(phba
);
1837 if (pmbox
->mbxStatus
) {
1838 phba
->sli
.slistat
.mbox_stat_err
++;
1839 if (pmbox
->mbxStatus
== MBXERR_NO_RESOURCES
) {
1840 /* Mbox cmd cmpl error - RETRYing */
1841 lpfc_printf_log(phba
, KERN_INFO
,
1843 "(%d):0305 Mbox cmd cmpl "
1844 "error - RETRYing Data: x%x "
1845 "(x%x) x%x x%x x%x\n",
1846 pmb
->vport
? pmb
->vport
->vpi
:0,
1848 lpfc_sli4_mbox_opcode_get(phba
,
1851 pmbox
->un
.varWords
[0],
1852 pmb
->vport
->port_state
);
1853 pmbox
->mbxStatus
= 0;
1854 pmbox
->mbxOwner
= OWN_HOST
;
1855 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
1856 if (rc
!= MBX_NOT_FINISHED
)
1861 /* Mailbox cmd <cmd> Cmpl <cmpl> */
1862 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
1863 "(%d):0307 Mailbox cmd x%x (x%x) Cmpl x%p "
1864 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n",
1865 pmb
->vport
? pmb
->vport
->vpi
: 0,
1867 lpfc_sli4_mbox_opcode_get(phba
, pmb
),
1869 *((uint32_t *) pmbox
),
1870 pmbox
->un
.varWords
[0],
1871 pmbox
->un
.varWords
[1],
1872 pmbox
->un
.varWords
[2],
1873 pmbox
->un
.varWords
[3],
1874 pmbox
->un
.varWords
[4],
1875 pmbox
->un
.varWords
[5],
1876 pmbox
->un
.varWords
[6],
1877 pmbox
->un
.varWords
[7]);
1880 pmb
->mbox_cmpl(phba
,pmb
);
1886 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
1887 * @phba: Pointer to HBA context object.
1888 * @pring: Pointer to driver SLI ring object.
1891 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
1892 * is set in the tag the buffer is posted for a particular exchange,
1893 * the function will return the buffer without replacing the buffer.
1894 * If the buffer is for unsolicited ELS or CT traffic, this function
1895 * returns the buffer and also posts another buffer to the firmware.
1897 static struct lpfc_dmabuf
*
1898 lpfc_sli_get_buff(struct lpfc_hba
*phba
,
1899 struct lpfc_sli_ring
*pring
,
1902 struct hbq_dmabuf
*hbq_entry
;
1904 if (tag
& QUE_BUFTAG_BIT
)
1905 return lpfc_sli_ring_taggedbuf_get(phba
, pring
, tag
);
1906 hbq_entry
= lpfc_sli_hbqbuf_find(phba
, tag
);
1909 return &hbq_entry
->dbuf
;
1913 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
1914 * @phba: Pointer to HBA context object.
1915 * @pring: Pointer to driver SLI ring object.
1916 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
1917 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
1918 * @fch_type: the type for the first frame of the sequence.
1920 * This function is called with no lock held. This function uses the r_ctl and
1921 * type of the received sequence to find the correct callback function to call
1922 * to process the sequence.
1925 lpfc_complete_unsol_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
1926 struct lpfc_iocbq
*saveq
, uint32_t fch_r_ctl
,
1931 /* unSolicited Responses */
1932 if (pring
->prt
[0].profile
) {
1933 if (pring
->prt
[0].lpfc_sli_rcv_unsol_event
)
1934 (pring
->prt
[0].lpfc_sli_rcv_unsol_event
) (phba
, pring
,
1938 /* We must search, based on rctl / type
1939 for the right routine */
1940 for (i
= 0; i
< pring
->num_mask
; i
++) {
1941 if ((pring
->prt
[i
].rctl
== fch_r_ctl
) &&
1942 (pring
->prt
[i
].type
== fch_type
)) {
1943 if (pring
->prt
[i
].lpfc_sli_rcv_unsol_event
)
1944 (pring
->prt
[i
].lpfc_sli_rcv_unsol_event
)
1945 (phba
, pring
, saveq
);
1953 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
1954 * @phba: Pointer to HBA context object.
1955 * @pring: Pointer to driver SLI ring object.
1956 * @saveq: Pointer to the unsolicited iocb.
1958 * This function is called with no lock held by the ring event handler
1959 * when there is an unsolicited iocb posted to the response ring by the
1960 * firmware. This function gets the buffer associated with the iocbs
1961 * and calls the event handler for the ring. This function handles both
1962 * qring buffers and hbq buffers.
1963 * When the function returns 1 the caller can free the iocb object otherwise
1964 * upper layer functions will free the iocb objects.
1967 lpfc_sli_process_unsol_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
1968 struct lpfc_iocbq
*saveq
)
1972 uint32_t Rctl
, Type
;
1974 struct lpfc_iocbq
*iocbq
;
1975 struct lpfc_dmabuf
*dmzbuf
;
1978 irsp
= &(saveq
->iocb
);
1980 if (irsp
->ulpCommand
== CMD_ASYNC_STATUS
) {
1981 if (pring
->lpfc_sli_rcv_async_status
)
1982 pring
->lpfc_sli_rcv_async_status(phba
, pring
, saveq
);
1984 lpfc_printf_log(phba
,
1987 "0316 Ring %d handler: unexpected "
1988 "ASYNC_STATUS iocb received evt_code "
1991 irsp
->un
.asyncstat
.evt_code
);
1995 if ((irsp
->ulpCommand
== CMD_IOCB_RET_XRI64_CX
) &&
1996 (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
)) {
1997 if (irsp
->ulpBdeCount
> 0) {
1998 dmzbuf
= lpfc_sli_get_buff(phba
, pring
,
1999 irsp
->un
.ulpWord
[3]);
2000 lpfc_in_buf_free(phba
, dmzbuf
);
2003 if (irsp
->ulpBdeCount
> 1) {
2004 dmzbuf
= lpfc_sli_get_buff(phba
, pring
,
2005 irsp
->unsli3
.sli3Words
[3]);
2006 lpfc_in_buf_free(phba
, dmzbuf
);
2009 if (irsp
->ulpBdeCount
> 2) {
2010 dmzbuf
= lpfc_sli_get_buff(phba
, pring
,
2011 irsp
->unsli3
.sli3Words
[7]);
2012 lpfc_in_buf_free(phba
, dmzbuf
);
2018 if (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) {
2019 if (irsp
->ulpBdeCount
!= 0) {
2020 saveq
->context2
= lpfc_sli_get_buff(phba
, pring
,
2021 irsp
->un
.ulpWord
[3]);
2022 if (!saveq
->context2
)
2023 lpfc_printf_log(phba
,
2026 "0341 Ring %d Cannot find buffer for "
2027 "an unsolicited iocb. tag 0x%x\n",
2029 irsp
->un
.ulpWord
[3]);
2031 if (irsp
->ulpBdeCount
== 2) {
2032 saveq
->context3
= lpfc_sli_get_buff(phba
, pring
,
2033 irsp
->unsli3
.sli3Words
[7]);
2034 if (!saveq
->context3
)
2035 lpfc_printf_log(phba
,
2038 "0342 Ring %d Cannot find buffer for an"
2039 " unsolicited iocb. tag 0x%x\n",
2041 irsp
->unsli3
.sli3Words
[7]);
2043 list_for_each_entry(iocbq
, &saveq
->list
, list
) {
2044 irsp
= &(iocbq
->iocb
);
2045 if (irsp
->ulpBdeCount
!= 0) {
2046 iocbq
->context2
= lpfc_sli_get_buff(phba
, pring
,
2047 irsp
->un
.ulpWord
[3]);
2048 if (!iocbq
->context2
)
2049 lpfc_printf_log(phba
,
2052 "0343 Ring %d Cannot find "
2053 "buffer for an unsolicited iocb"
2054 ". tag 0x%x\n", pring
->ringno
,
2055 irsp
->un
.ulpWord
[3]);
2057 if (irsp
->ulpBdeCount
== 2) {
2058 iocbq
->context3
= lpfc_sli_get_buff(phba
, pring
,
2059 irsp
->unsli3
.sli3Words
[7]);
2060 if (!iocbq
->context3
)
2061 lpfc_printf_log(phba
,
2064 "0344 Ring %d Cannot find "
2065 "buffer for an unsolicited "
2068 irsp
->unsli3
.sli3Words
[7]);
2072 if (irsp
->ulpBdeCount
!= 0 &&
2073 (irsp
->ulpCommand
== CMD_IOCB_RCV_CONT64_CX
||
2074 irsp
->ulpStatus
== IOSTAT_INTERMED_RSP
)) {
2077 /* search continue save q for same XRI */
2078 list_for_each_entry(iocbq
, &pring
->iocb_continue_saveq
, clist
) {
2079 if (iocbq
->iocb
.ulpContext
== saveq
->iocb
.ulpContext
) {
2080 list_add_tail(&saveq
->list
, &iocbq
->list
);
2086 list_add_tail(&saveq
->clist
,
2087 &pring
->iocb_continue_saveq
);
2088 if (saveq
->iocb
.ulpStatus
!= IOSTAT_INTERMED_RSP
) {
2089 list_del_init(&iocbq
->clist
);
2091 irsp
= &(saveq
->iocb
);
2095 if ((irsp
->ulpCommand
== CMD_RCV_ELS_REQ64_CX
) ||
2096 (irsp
->ulpCommand
== CMD_RCV_ELS_REQ_CX
) ||
2097 (irsp
->ulpCommand
== CMD_IOCB_RCV_ELS64_CX
)) {
2098 Rctl
= FC_RCTL_ELS_REQ
;
2101 w5p
= (WORD5
*)&(saveq
->iocb
.un
.ulpWord
[5]);
2102 Rctl
= w5p
->hcsw
.Rctl
;
2103 Type
= w5p
->hcsw
.Type
;
2105 /* Firmware Workaround */
2106 if ((Rctl
== 0) && (pring
->ringno
== LPFC_ELS_RING
) &&
2107 (irsp
->ulpCommand
== CMD_RCV_SEQUENCE64_CX
||
2108 irsp
->ulpCommand
== CMD_IOCB_RCV_SEQ64_CX
)) {
2109 Rctl
= FC_RCTL_ELS_REQ
;
2111 w5p
->hcsw
.Rctl
= Rctl
;
2112 w5p
->hcsw
.Type
= Type
;
2116 if (!lpfc_complete_unsol_iocb(phba
, pring
, saveq
, Rctl
, Type
))
2117 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
2118 "0313 Ring %d handler: unexpected Rctl x%x "
2119 "Type x%x received\n",
2120 pring
->ringno
, Rctl
, Type
);
2126 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
2127 * @phba: Pointer to HBA context object.
2128 * @pring: Pointer to driver SLI ring object.
2129 * @prspiocb: Pointer to response iocb object.
2131 * This function looks up the iocb_lookup table to get the command iocb
2132 * corresponding to the given response iocb using the iotag of the
2133 * response iocb. This function is called with the hbalock held.
2134 * This function returns the command iocb object if it finds the command
2135 * iocb else returns NULL.
2137 static struct lpfc_iocbq
*
2138 lpfc_sli_iocbq_lookup(struct lpfc_hba
*phba
,
2139 struct lpfc_sli_ring
*pring
,
2140 struct lpfc_iocbq
*prspiocb
)
2142 struct lpfc_iocbq
*cmd_iocb
= NULL
;
2145 iotag
= prspiocb
->iocb
.ulpIoTag
;
2147 if (iotag
!= 0 && iotag
<= phba
->sli
.last_iotag
) {
2148 cmd_iocb
= phba
->sli
.iocbq_lookup
[iotag
];
2149 list_del_init(&cmd_iocb
->list
);
2150 pring
->txcmplq_cnt
--;
2154 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2155 "0317 iotag x%x is out off "
2156 "range: max iotag x%x wd0 x%x\n",
2157 iotag
, phba
->sli
.last_iotag
,
2158 *(((uint32_t *) &prspiocb
->iocb
) + 7));
2163 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2164 * @phba: Pointer to HBA context object.
2165 * @pring: Pointer to driver SLI ring object.
2168 * This function looks up the iocb_lookup table to get the command iocb
2169 * corresponding to the given iotag. This function is called with the
2171 * This function returns the command iocb object if it finds the command
2172 * iocb else returns NULL.
2174 static struct lpfc_iocbq
*
2175 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba
*phba
,
2176 struct lpfc_sli_ring
*pring
, uint16_t iotag
)
2178 struct lpfc_iocbq
*cmd_iocb
;
2180 if (iotag
!= 0 && iotag
<= phba
->sli
.last_iotag
) {
2181 cmd_iocb
= phba
->sli
.iocbq_lookup
[iotag
];
2182 list_del_init(&cmd_iocb
->list
);
2183 pring
->txcmplq_cnt
--;
2187 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2188 "0372 iotag x%x is out off range: max iotag (x%x)\n",
2189 iotag
, phba
->sli
.last_iotag
);
2194 * lpfc_sli_process_sol_iocb - process solicited iocb completion
2195 * @phba: Pointer to HBA context object.
2196 * @pring: Pointer to driver SLI ring object.
2197 * @saveq: Pointer to the response iocb to be processed.
2199 * This function is called by the ring event handler for non-fcp
2200 * rings when there is a new response iocb in the response ring.
2201 * The caller is not required to hold any locks. This function
2202 * gets the command iocb associated with the response iocb and
2203 * calls the completion handler for the command iocb. If there
2204 * is no completion handler, the function will free the resources
2205 * associated with command iocb. If the response iocb is for
2206 * an already aborted command iocb, the status of the completion
2207 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
2208 * This function always returns 1.
2211 lpfc_sli_process_sol_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
2212 struct lpfc_iocbq
*saveq
)
2214 struct lpfc_iocbq
*cmdiocbp
;
2216 unsigned long iflag
;
2218 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
2219 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2220 cmdiocbp
= lpfc_sli_iocbq_lookup(phba
, pring
, saveq
);
2221 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2224 if (cmdiocbp
->iocb_cmpl
) {
2226 * If an ELS command failed send an event to mgmt
2229 if (saveq
->iocb
.ulpStatus
&&
2230 (pring
->ringno
== LPFC_ELS_RING
) &&
2231 (cmdiocbp
->iocb
.ulpCommand
==
2232 CMD_ELS_REQUEST64_CR
))
2233 lpfc_send_els_failure_event(phba
,
2237 * Post all ELS completions to the worker thread.
2238 * All other are passed to the completion callback.
2240 if (pring
->ringno
== LPFC_ELS_RING
) {
2241 if ((phba
->sli_rev
< LPFC_SLI_REV4
) &&
2242 (cmdiocbp
->iocb_flag
&
2243 LPFC_DRIVER_ABORTED
)) {
2244 spin_lock_irqsave(&phba
->hbalock
,
2246 cmdiocbp
->iocb_flag
&=
2247 ~LPFC_DRIVER_ABORTED
;
2248 spin_unlock_irqrestore(&phba
->hbalock
,
2250 saveq
->iocb
.ulpStatus
=
2251 IOSTAT_LOCAL_REJECT
;
2252 saveq
->iocb
.un
.ulpWord
[4] =
2255 /* Firmware could still be in progress
2256 * of DMAing payload, so don't free data
2257 * buffer till after a hbeat.
2259 spin_lock_irqsave(&phba
->hbalock
,
2261 saveq
->iocb_flag
|= LPFC_DELAY_MEM_FREE
;
2262 spin_unlock_irqrestore(&phba
->hbalock
,
2265 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
2266 if (saveq
->iocb_flag
&
2267 LPFC_EXCHANGE_BUSY
) {
2268 /* Set cmdiocb flag for the
2269 * exchange busy so sgl (xri)
2270 * will not be released until
2271 * the abort xri is received
2275 &phba
->hbalock
, iflag
);
2276 cmdiocbp
->iocb_flag
|=
2278 spin_unlock_irqrestore(
2279 &phba
->hbalock
, iflag
);
2281 if (cmdiocbp
->iocb_flag
&
2282 LPFC_DRIVER_ABORTED
) {
2284 * Clear LPFC_DRIVER_ABORTED
2285 * bit in case it was driver
2289 &phba
->hbalock
, iflag
);
2290 cmdiocbp
->iocb_flag
&=
2291 ~LPFC_DRIVER_ABORTED
;
2292 spin_unlock_irqrestore(
2293 &phba
->hbalock
, iflag
);
2294 cmdiocbp
->iocb
.ulpStatus
=
2295 IOSTAT_LOCAL_REJECT
;
2296 cmdiocbp
->iocb
.un
.ulpWord
[4] =
2297 IOERR_ABORT_REQUESTED
;
2299 * For SLI4, irsiocb contains
2300 * NO_XRI in sli_xritag, it
2301 * shall not affect releasing
2302 * sgl (xri) process.
2304 saveq
->iocb
.ulpStatus
=
2305 IOSTAT_LOCAL_REJECT
;
2306 saveq
->iocb
.un
.ulpWord
[4] =
2309 &phba
->hbalock
, iflag
);
2311 LPFC_DELAY_MEM_FREE
;
2312 spin_unlock_irqrestore(
2313 &phba
->hbalock
, iflag
);
2317 (cmdiocbp
->iocb_cmpl
) (phba
, cmdiocbp
, saveq
);
2319 lpfc_sli_release_iocbq(phba
, cmdiocbp
);
2322 * Unknown initiating command based on the response iotag.
2323 * This could be the case on the ELS ring because of
2326 if (pring
->ringno
!= LPFC_ELS_RING
) {
2328 * Ring <ringno> handler: unexpected completion IoTag
2331 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
2332 "0322 Ring %d handler: "
2333 "unexpected completion IoTag x%x "
2334 "Data: x%x x%x x%x x%x\n",
2336 saveq
->iocb
.ulpIoTag
,
2337 saveq
->iocb
.ulpStatus
,
2338 saveq
->iocb
.un
.ulpWord
[4],
2339 saveq
->iocb
.ulpCommand
,
2340 saveq
->iocb
.ulpContext
);
2348 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
2349 * @phba: Pointer to HBA context object.
2350 * @pring: Pointer to driver SLI ring object.
2352 * This function is called from the iocb ring event handlers when
2353 * put pointer is ahead of the get pointer for a ring. This function signal
2354 * an error attention condition to the worker thread and the worker
2355 * thread will transition the HBA to offline state.
2358 lpfc_sli_rsp_pointers_error(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
2360 struct lpfc_pgp
*pgp
= &phba
->port_gp
[pring
->ringno
];
2362 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
2363 * rsp ring <portRspMax>
2365 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2366 "0312 Ring %d handler: portRspPut %d "
2367 "is bigger than rsp ring %d\n",
2368 pring
->ringno
, le32_to_cpu(pgp
->rspPutInx
),
2371 phba
->link_state
= LPFC_HBA_ERROR
;
2374 * All error attention handlers are posted to
2377 phba
->work_ha
|= HA_ERATT
;
2378 phba
->work_hs
= HS_FFER3
;
2380 lpfc_worker_wake_up(phba
);
2386 * lpfc_poll_eratt - Error attention polling timer timeout handler
2387 * @ptr: Pointer to address of HBA context object.
2389 * This function is invoked by the Error Attention polling timer when the
2390 * timer times out. It will check the SLI Error Attention register for
2391 * possible attention events. If so, it will post an Error Attention event
2392 * and wake up worker thread to process it. Otherwise, it will set up the
2393 * Error Attention polling timer for the next poll.
2395 void lpfc_poll_eratt(unsigned long ptr
)
2397 struct lpfc_hba
*phba
;
2400 phba
= (struct lpfc_hba
*)ptr
;
2402 /* Check chip HA register for error event */
2403 eratt
= lpfc_sli_check_eratt(phba
);
2406 /* Tell the worker thread there is work to do */
2407 lpfc_worker_wake_up(phba
);
2409 /* Restart the timer for next eratt poll */
2410 mod_timer(&phba
->eratt_poll
, jiffies
+
2411 HZ
* LPFC_ERATT_POLL_INTERVAL
);
2417 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
2418 * @phba: Pointer to HBA context object.
2419 * @pring: Pointer to driver SLI ring object.
2420 * @mask: Host attention register mask for this ring.
2422 * This function is called from the interrupt context when there is a ring
2423 * event for the fcp ring. The caller does not hold any lock.
2424 * The function processes each response iocb in the response ring until it
2425 * finds an iocb with LE bit set and chains all the iocbs upto the iocb with
2426 * LE bit set. The function will call the completion handler of the command iocb
2427 * if the response iocb indicates a completion for a command iocb or it is
2428 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
2429 * function if this is an unsolicited iocb.
2430 * This routine presumes LPFC_FCP_RING handling and doesn't bother
2431 * to check it explicitly.
2434 lpfc_sli_handle_fast_ring_event(struct lpfc_hba
*phba
,
2435 struct lpfc_sli_ring
*pring
, uint32_t mask
)
2437 struct lpfc_pgp
*pgp
= &phba
->port_gp
[pring
->ringno
];
2438 IOCB_t
*irsp
= NULL
;
2439 IOCB_t
*entry
= NULL
;
2440 struct lpfc_iocbq
*cmdiocbq
= NULL
;
2441 struct lpfc_iocbq rspiocbq
;
2443 uint32_t portRspPut
, portRspMax
;
2445 lpfc_iocb_type type
;
2446 unsigned long iflag
;
2447 uint32_t rsp_cmpl
= 0;
2449 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2450 pring
->stats
.iocb_event
++;
2453 * The next available response entry should never exceed the maximum
2454 * entries. If it does, treat it as an adapter hardware error.
2456 portRspMax
= pring
->numRiocb
;
2457 portRspPut
= le32_to_cpu(pgp
->rspPutInx
);
2458 if (unlikely(portRspPut
>= portRspMax
)) {
2459 lpfc_sli_rsp_pointers_error(phba
, pring
);
2460 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2463 if (phba
->fcp_ring_in_use
) {
2464 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2467 phba
->fcp_ring_in_use
= 1;
2470 while (pring
->rspidx
!= portRspPut
) {
2472 * Fetch an entry off the ring and copy it into a local data
2473 * structure. The copy involves a byte-swap since the
2474 * network byte order and pci byte orders are different.
2476 entry
= lpfc_resp_iocb(phba
, pring
);
2477 phba
->last_completion_time
= jiffies
;
2479 if (++pring
->rspidx
>= portRspMax
)
2482 lpfc_sli_pcimem_bcopy((uint32_t *) entry
,
2483 (uint32_t *) &rspiocbq
.iocb
,
2484 phba
->iocb_rsp_size
);
2485 INIT_LIST_HEAD(&(rspiocbq
.list
));
2486 irsp
= &rspiocbq
.iocb
;
2488 type
= lpfc_sli_iocb_cmd_type(irsp
->ulpCommand
& CMD_IOCB_MASK
);
2489 pring
->stats
.iocb_rsp
++;
2492 if (unlikely(irsp
->ulpStatus
)) {
2494 * If resource errors reported from HBA, reduce
2495 * queuedepths of the SCSI device.
2497 if ((irsp
->ulpStatus
== IOSTAT_LOCAL_REJECT
) &&
2498 (irsp
->un
.ulpWord
[4] == IOERR_NO_RESOURCES
)) {
2499 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2500 phba
->lpfc_rampdown_queue_depth(phba
);
2501 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2504 /* Rsp ring <ringno> error: IOCB */
2505 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
2506 "0336 Rsp Ring %d error: IOCB Data: "
2507 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
2509 irsp
->un
.ulpWord
[0],
2510 irsp
->un
.ulpWord
[1],
2511 irsp
->un
.ulpWord
[2],
2512 irsp
->un
.ulpWord
[3],
2513 irsp
->un
.ulpWord
[4],
2514 irsp
->un
.ulpWord
[5],
2515 *(uint32_t *)&irsp
->un1
,
2516 *((uint32_t *)&irsp
->un1
+ 1));
2520 case LPFC_ABORT_IOCB
:
2523 * Idle exchange closed via ABTS from port. No iocb
2524 * resources need to be recovered.
2526 if (unlikely(irsp
->ulpCommand
== CMD_XRI_ABORTED_CX
)) {
2527 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
2528 "0333 IOCB cmd 0x%x"
2529 " processed. Skipping"
2535 cmdiocbq
= lpfc_sli_iocbq_lookup(phba
, pring
,
2537 if (unlikely(!cmdiocbq
))
2539 if (cmdiocbq
->iocb_flag
& LPFC_DRIVER_ABORTED
)
2540 cmdiocbq
->iocb_flag
&= ~LPFC_DRIVER_ABORTED
;
2541 if (cmdiocbq
->iocb_cmpl
) {
2542 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2543 (cmdiocbq
->iocb_cmpl
)(phba
, cmdiocbq
,
2545 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2548 case LPFC_UNSOL_IOCB
:
2549 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2550 lpfc_sli_process_unsol_iocb(phba
, pring
, &rspiocbq
);
2551 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2554 if (irsp
->ulpCommand
== CMD_ADAPTER_MSG
) {
2555 char adaptermsg
[LPFC_MAX_ADPTMSG
];
2556 memset(adaptermsg
, 0, LPFC_MAX_ADPTMSG
);
2557 memcpy(&adaptermsg
[0], (uint8_t *) irsp
,
2559 dev_warn(&((phba
->pcidev
)->dev
),
2561 phba
->brd_no
, adaptermsg
);
2563 /* Unknown IOCB command */
2564 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2565 "0334 Unknown IOCB command "
2566 "Data: x%x, x%x x%x x%x x%x\n",
2567 type
, irsp
->ulpCommand
,
2576 * The response IOCB has been processed. Update the ring
2577 * pointer in SLIM. If the port response put pointer has not
2578 * been updated, sync the pgp->rspPutInx and fetch the new port
2579 * response put pointer.
2581 writel(pring
->rspidx
, &phba
->host_gp
[pring
->ringno
].rspGetInx
);
2583 if (pring
->rspidx
== portRspPut
)
2584 portRspPut
= le32_to_cpu(pgp
->rspPutInx
);
2587 if ((rsp_cmpl
> 0) && (mask
& HA_R0RE_REQ
)) {
2588 pring
->stats
.iocb_rsp_full
++;
2589 status
= ((CA_R0ATT
| CA_R0RE_RSP
) << (pring
->ringno
* 4));
2590 writel(status
, phba
->CAregaddr
);
2591 readl(phba
->CAregaddr
);
2593 if ((mask
& HA_R0CE_RSP
) && (pring
->flag
& LPFC_CALL_RING_AVAILABLE
)) {
2594 pring
->flag
&= ~LPFC_CALL_RING_AVAILABLE
;
2595 pring
->stats
.iocb_cmd_empty
++;
2597 /* Force update of the local copy of cmdGetInx */
2598 pring
->local_getidx
= le32_to_cpu(pgp
->cmdGetInx
);
2599 lpfc_sli_resume_iocb(phba
, pring
);
2601 if ((pring
->lpfc_sli_cmd_available
))
2602 (pring
->lpfc_sli_cmd_available
) (phba
, pring
);
2606 phba
->fcp_ring_in_use
= 0;
2607 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2612 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
2613 * @phba: Pointer to HBA context object.
2614 * @pring: Pointer to driver SLI ring object.
2615 * @rspiocbp: Pointer to driver response IOCB object.
2617 * This function is called from the worker thread when there is a slow-path
2618 * response IOCB to process. This function chains all the response iocbs until
2619 * seeing the iocb with the LE bit set. The function will call
2620 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
2621 * completion of a command iocb. The function will call the
2622 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
2623 * The function frees the resources or calls the completion handler if this
2624 * iocb is an abort completion. The function returns NULL when the response
2625 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
2626 * this function shall chain the iocb on to the iocb_continueq and return the
2627 * response iocb passed in.
2629 static struct lpfc_iocbq
*
2630 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
2631 struct lpfc_iocbq
*rspiocbp
)
2633 struct lpfc_iocbq
*saveq
;
2634 struct lpfc_iocbq
*cmdiocbp
;
2635 struct lpfc_iocbq
*next_iocb
;
2636 IOCB_t
*irsp
= NULL
;
2637 uint32_t free_saveq
;
2638 uint8_t iocb_cmd_type
;
2639 lpfc_iocb_type type
;
2640 unsigned long iflag
;
2643 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2644 /* First add the response iocb to the countinueq list */
2645 list_add_tail(&rspiocbp
->list
, &(pring
->iocb_continueq
));
2646 pring
->iocb_continueq_cnt
++;
2648 /* Now, determine whetehr the list is completed for processing */
2649 irsp
= &rspiocbp
->iocb
;
2652 * By default, the driver expects to free all resources
2653 * associated with this iocb completion.
2656 saveq
= list_get_first(&pring
->iocb_continueq
,
2657 struct lpfc_iocbq
, list
);
2658 irsp
= &(saveq
->iocb
);
2659 list_del_init(&pring
->iocb_continueq
);
2660 pring
->iocb_continueq_cnt
= 0;
2662 pring
->stats
.iocb_rsp
++;
2665 * If resource errors reported from HBA, reduce
2666 * queuedepths of the SCSI device.
2668 if ((irsp
->ulpStatus
== IOSTAT_LOCAL_REJECT
) &&
2669 (irsp
->un
.ulpWord
[4] == IOERR_NO_RESOURCES
)) {
2670 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2671 phba
->lpfc_rampdown_queue_depth(phba
);
2672 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2675 if (irsp
->ulpStatus
) {
2676 /* Rsp ring <ringno> error: IOCB */
2677 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
2678 "0328 Rsp Ring %d error: "
2683 "x%x x%x x%x x%x\n",
2685 irsp
->un
.ulpWord
[0],
2686 irsp
->un
.ulpWord
[1],
2687 irsp
->un
.ulpWord
[2],
2688 irsp
->un
.ulpWord
[3],
2689 irsp
->un
.ulpWord
[4],
2690 irsp
->un
.ulpWord
[5],
2691 *(((uint32_t *) irsp
) + 6),
2692 *(((uint32_t *) irsp
) + 7),
2693 *(((uint32_t *) irsp
) + 8),
2694 *(((uint32_t *) irsp
) + 9),
2695 *(((uint32_t *) irsp
) + 10),
2696 *(((uint32_t *) irsp
) + 11),
2697 *(((uint32_t *) irsp
) + 12),
2698 *(((uint32_t *) irsp
) + 13),
2699 *(((uint32_t *) irsp
) + 14),
2700 *(((uint32_t *) irsp
) + 15));
2704 * Fetch the IOCB command type and call the correct completion
2705 * routine. Solicited and Unsolicited IOCBs on the ELS ring
2706 * get freed back to the lpfc_iocb_list by the discovery
2709 iocb_cmd_type
= irsp
->ulpCommand
& CMD_IOCB_MASK
;
2710 type
= lpfc_sli_iocb_cmd_type(iocb_cmd_type
);
2713 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2714 rc
= lpfc_sli_process_sol_iocb(phba
, pring
, saveq
);
2715 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2718 case LPFC_UNSOL_IOCB
:
2719 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2720 rc
= lpfc_sli_process_unsol_iocb(phba
, pring
, saveq
);
2721 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2726 case LPFC_ABORT_IOCB
:
2728 if (irsp
->ulpCommand
!= CMD_XRI_ABORTED_CX
)
2729 cmdiocbp
= lpfc_sli_iocbq_lookup(phba
, pring
,
2732 /* Call the specified completion routine */
2733 if (cmdiocbp
->iocb_cmpl
) {
2734 spin_unlock_irqrestore(&phba
->hbalock
,
2736 (cmdiocbp
->iocb_cmpl
)(phba
, cmdiocbp
,
2738 spin_lock_irqsave(&phba
->hbalock
,
2741 __lpfc_sli_release_iocbq(phba
,
2746 case LPFC_UNKNOWN_IOCB
:
2747 if (irsp
->ulpCommand
== CMD_ADAPTER_MSG
) {
2748 char adaptermsg
[LPFC_MAX_ADPTMSG
];
2749 memset(adaptermsg
, 0, LPFC_MAX_ADPTMSG
);
2750 memcpy(&adaptermsg
[0], (uint8_t *)irsp
,
2752 dev_warn(&((phba
->pcidev
)->dev
),
2754 phba
->brd_no
, adaptermsg
);
2756 /* Unknown IOCB command */
2757 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2758 "0335 Unknown IOCB "
2759 "command Data: x%x "
2770 list_for_each_entry_safe(rspiocbp
, next_iocb
,
2771 &saveq
->list
, list
) {
2772 list_del(&rspiocbp
->list
);
2773 __lpfc_sli_release_iocbq(phba
, rspiocbp
);
2775 __lpfc_sli_release_iocbq(phba
, saveq
);
2779 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2784 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
2785 * @phba: Pointer to HBA context object.
2786 * @pring: Pointer to driver SLI ring object.
2787 * @mask: Host attention register mask for this ring.
2789 * This routine wraps the actual slow_ring event process routine from the
2790 * API jump table function pointer from the lpfc_hba struct.
2793 lpfc_sli_handle_slow_ring_event(struct lpfc_hba
*phba
,
2794 struct lpfc_sli_ring
*pring
, uint32_t mask
)
2796 phba
->lpfc_sli_handle_slow_ring_event(phba
, pring
, mask
);
2800 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
2801 * @phba: Pointer to HBA context object.
2802 * @pring: Pointer to driver SLI ring object.
2803 * @mask: Host attention register mask for this ring.
2805 * This function is called from the worker thread when there is a ring event
2806 * for non-fcp rings. The caller does not hold any lock. The function will
2807 * remove each response iocb in the response ring and calls the handle
2808 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
2811 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba
*phba
,
2812 struct lpfc_sli_ring
*pring
, uint32_t mask
)
2814 struct lpfc_pgp
*pgp
;
2816 IOCB_t
*irsp
= NULL
;
2817 struct lpfc_iocbq
*rspiocbp
= NULL
;
2818 uint32_t portRspPut
, portRspMax
;
2819 unsigned long iflag
;
2822 pgp
= &phba
->port_gp
[pring
->ringno
];
2823 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2824 pring
->stats
.iocb_event
++;
2827 * The next available response entry should never exceed the maximum
2828 * entries. If it does, treat it as an adapter hardware error.
2830 portRspMax
= pring
->numRiocb
;
2831 portRspPut
= le32_to_cpu(pgp
->rspPutInx
);
2832 if (portRspPut
>= portRspMax
) {
2834 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
2835 * rsp ring <portRspMax>
2837 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2838 "0303 Ring %d handler: portRspPut %d "
2839 "is bigger than rsp ring %d\n",
2840 pring
->ringno
, portRspPut
, portRspMax
);
2842 phba
->link_state
= LPFC_HBA_ERROR
;
2843 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2845 phba
->work_hs
= HS_FFER3
;
2846 lpfc_handle_eratt(phba
);
2852 while (pring
->rspidx
!= portRspPut
) {
2854 * Build a completion list and call the appropriate handler.
2855 * The process is to get the next available response iocb, get
2856 * a free iocb from the list, copy the response data into the
2857 * free iocb, insert to the continuation list, and update the
2858 * next response index to slim. This process makes response
2859 * iocb's in the ring available to DMA as fast as possible but
2860 * pays a penalty for a copy operation. Since the iocb is
2861 * only 32 bytes, this penalty is considered small relative to
2862 * the PCI reads for register values and a slim write. When
2863 * the ulpLe field is set, the entire Command has been
2866 entry
= lpfc_resp_iocb(phba
, pring
);
2868 phba
->last_completion_time
= jiffies
;
2869 rspiocbp
= __lpfc_sli_get_iocbq(phba
);
2870 if (rspiocbp
== NULL
) {
2871 printk(KERN_ERR
"%s: out of buffers! Failing "
2872 "completion.\n", __func__
);
2876 lpfc_sli_pcimem_bcopy(entry
, &rspiocbp
->iocb
,
2877 phba
->iocb_rsp_size
);
2878 irsp
= &rspiocbp
->iocb
;
2880 if (++pring
->rspidx
>= portRspMax
)
2883 if (pring
->ringno
== LPFC_ELS_RING
) {
2884 lpfc_debugfs_slow_ring_trc(phba
,
2885 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
2886 *(((uint32_t *) irsp
) + 4),
2887 *(((uint32_t *) irsp
) + 6),
2888 *(((uint32_t *) irsp
) + 7));
2891 writel(pring
->rspidx
, &phba
->host_gp
[pring
->ringno
].rspGetInx
);
2893 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2894 /* Handle the response IOCB */
2895 rspiocbp
= lpfc_sli_sp_handle_rspiocb(phba
, pring
, rspiocbp
);
2896 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2899 * If the port response put pointer has not been updated, sync
2900 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
2901 * response put pointer.
2903 if (pring
->rspidx
== portRspPut
) {
2904 portRspPut
= le32_to_cpu(pgp
->rspPutInx
);
2906 } /* while (pring->rspidx != portRspPut) */
2908 if ((rspiocbp
!= NULL
) && (mask
& HA_R0RE_REQ
)) {
2909 /* At least one response entry has been freed */
2910 pring
->stats
.iocb_rsp_full
++;
2911 /* SET RxRE_RSP in Chip Att register */
2912 status
= ((CA_R0ATT
| CA_R0RE_RSP
) << (pring
->ringno
* 4));
2913 writel(status
, phba
->CAregaddr
);
2914 readl(phba
->CAregaddr
); /* flush */
2916 if ((mask
& HA_R0CE_RSP
) && (pring
->flag
& LPFC_CALL_RING_AVAILABLE
)) {
2917 pring
->flag
&= ~LPFC_CALL_RING_AVAILABLE
;
2918 pring
->stats
.iocb_cmd_empty
++;
2920 /* Force update of the local copy of cmdGetInx */
2921 pring
->local_getidx
= le32_to_cpu(pgp
->cmdGetInx
);
2922 lpfc_sli_resume_iocb(phba
, pring
);
2924 if ((pring
->lpfc_sli_cmd_available
))
2925 (pring
->lpfc_sli_cmd_available
) (phba
, pring
);
2929 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2934 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
2935 * @phba: Pointer to HBA context object.
2936 * @pring: Pointer to driver SLI ring object.
2937 * @mask: Host attention register mask for this ring.
2939 * This function is called from the worker thread when there is a pending
2940 * ELS response iocb on the driver internal slow-path response iocb worker
2941 * queue. The caller does not hold any lock. The function will remove each
2942 * response iocb from the response worker queue and calls the handle
2943 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
2946 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba
*phba
,
2947 struct lpfc_sli_ring
*pring
, uint32_t mask
)
2949 struct lpfc_iocbq
*irspiocbq
;
2950 struct hbq_dmabuf
*dmabuf
;
2951 struct lpfc_cq_event
*cq_event
;
2952 unsigned long iflag
;
2954 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2955 phba
->hba_flag
&= ~HBA_SP_QUEUE_EVT
;
2956 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2957 while (!list_empty(&phba
->sli4_hba
.sp_queue_event
)) {
2958 /* Get the response iocb from the head of work queue */
2959 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2960 list_remove_head(&phba
->sli4_hba
.sp_queue_event
,
2961 cq_event
, struct lpfc_cq_event
, list
);
2962 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2964 switch (bf_get(lpfc_wcqe_c_code
, &cq_event
->cqe
.wcqe_cmpl
)) {
2965 case CQE_CODE_COMPL_WQE
:
2966 irspiocbq
= container_of(cq_event
, struct lpfc_iocbq
,
2968 /* Translate ELS WCQE to response IOCBQ */
2969 irspiocbq
= lpfc_sli4_els_wcqe_to_rspiocbq(phba
,
2972 lpfc_sli_sp_handle_rspiocb(phba
, pring
,
2975 case CQE_CODE_RECEIVE
:
2976 dmabuf
= container_of(cq_event
, struct hbq_dmabuf
,
2978 lpfc_sli4_handle_received_buffer(phba
, dmabuf
);
2987 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
2988 * @phba: Pointer to HBA context object.
2989 * @pring: Pointer to driver SLI ring object.
2991 * This function aborts all iocbs in the given ring and frees all the iocb
2992 * objects in txq. This function issues an abort iocb for all the iocb commands
2993 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
2994 * the return of this function. The caller is not required to hold any locks.
2997 lpfc_sli_abort_iocb_ring(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
2999 LIST_HEAD(completions
);
3000 struct lpfc_iocbq
*iocb
, *next_iocb
;
3002 if (pring
->ringno
== LPFC_ELS_RING
) {
3003 lpfc_fabric_abort_hba(phba
);
3006 /* Error everything on txq and txcmplq
3009 spin_lock_irq(&phba
->hbalock
);
3010 list_splice_init(&pring
->txq
, &completions
);
3013 /* Next issue ABTS for everything on the txcmplq */
3014 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txcmplq
, list
)
3015 lpfc_sli_issue_abort_iotag(phba
, pring
, iocb
);
3017 spin_unlock_irq(&phba
->hbalock
);
3019 /* Cancel all the IOCBs from the completions list */
3020 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
3025 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
3026 * @phba: Pointer to HBA context object.
3028 * This function flushes all iocbs in the fcp ring and frees all the iocb
3029 * objects in txq and txcmplq. This function will not issue abort iocbs
3030 * for all the iocb commands in txcmplq, they will just be returned with
3031 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3032 * slot has been permanently disabled.
3035 lpfc_sli_flush_fcp_rings(struct lpfc_hba
*phba
)
3039 struct lpfc_sli
*psli
= &phba
->sli
;
3040 struct lpfc_sli_ring
*pring
;
3042 /* Currently, only one fcp ring */
3043 pring
= &psli
->ring
[psli
->fcp_ring
];
3045 spin_lock_irq(&phba
->hbalock
);
3046 /* Retrieve everything on txq */
3047 list_splice_init(&pring
->txq
, &txq
);
3050 /* Retrieve everything on the txcmplq */
3051 list_splice_init(&pring
->txcmplq
, &txcmplq
);
3052 pring
->txcmplq_cnt
= 0;
3053 spin_unlock_irq(&phba
->hbalock
);
3056 lpfc_sli_cancel_iocbs(phba
, &txq
, IOSTAT_LOCAL_REJECT
,
3059 /* Flush the txcmpq */
3060 lpfc_sli_cancel_iocbs(phba
, &txcmplq
, IOSTAT_LOCAL_REJECT
,
3065 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
3066 * @phba: Pointer to HBA context object.
3067 * @mask: Bit mask to be checked.
3069 * This function reads the host status register and compares
3070 * with the provided bit mask to check if HBA completed
3071 * the restart. This function will wait in a loop for the
3072 * HBA to complete restart. If the HBA does not restart within
3073 * 15 iterations, the function will reset the HBA again. The
3074 * function returns 1 when HBA fail to restart otherwise returns
3078 lpfc_sli_brdready_s3(struct lpfc_hba
*phba
, uint32_t mask
)
3084 /* Read the HBA Host Status Register */
3085 status
= readl(phba
->HSregaddr
);
3088 * Check status register every 100ms for 5 retries, then every
3089 * 500ms for 5, then every 2.5 sec for 5, then reset board and
3090 * every 2.5 sec for 4.
3091 * Break our of the loop if errors occurred during init.
3093 while (((status
& mask
) != mask
) &&
3094 !(status
& HS_FFERM
) &&
3106 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
3107 lpfc_sli_brdrestart(phba
);
3109 /* Read the HBA Host Status Register */
3110 status
= readl(phba
->HSregaddr
);
3113 /* Check to see if any errors occurred during init */
3114 if ((status
& HS_FFERM
) || (i
>= 20)) {
3115 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3116 "2751 Adapter failed to restart, "
3117 "status reg x%x, FW Data: A8 x%x AC x%x\n",
3119 readl(phba
->MBslimaddr
+ 0xa8),
3120 readl(phba
->MBslimaddr
+ 0xac));
3121 phba
->link_state
= LPFC_HBA_ERROR
;
3129 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3130 * @phba: Pointer to HBA context object.
3131 * @mask: Bit mask to be checked.
3133 * This function checks the host status register to check if HBA is
3134 * ready. This function will wait in a loop for the HBA to be ready
3135 * If the HBA is not ready , the function will will reset the HBA PCI
3136 * function again. The function returns 1 when HBA fail to be ready
3137 * otherwise returns zero.
3140 lpfc_sli_brdready_s4(struct lpfc_hba
*phba
, uint32_t mask
)
3145 /* Read the HBA Host Status Register */
3146 status
= lpfc_sli4_post_status_check(phba
);
3149 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
3150 lpfc_sli_brdrestart(phba
);
3151 status
= lpfc_sli4_post_status_check(phba
);
3154 /* Check to see if any errors occurred during init */
3156 phba
->link_state
= LPFC_HBA_ERROR
;
3159 phba
->sli4_hba
.intr_enable
= 0;
3165 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3166 * @phba: Pointer to HBA context object.
3167 * @mask: Bit mask to be checked.
3169 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3170 * from the API jump table function pointer from the lpfc_hba struct.
3173 lpfc_sli_brdready(struct lpfc_hba
*phba
, uint32_t mask
)
3175 return phba
->lpfc_sli_brdready(phba
, mask
);
3178 #define BARRIER_TEST_PATTERN (0xdeadbeef)
3181 * lpfc_reset_barrier - Make HBA ready for HBA reset
3182 * @phba: Pointer to HBA context object.
3184 * This function is called before resetting an HBA. This
3185 * function requests HBA to quiesce DMAs before a reset.
3187 void lpfc_reset_barrier(struct lpfc_hba
*phba
)
3189 uint32_t __iomem
*resp_buf
;
3190 uint32_t __iomem
*mbox_buf
;
3191 volatile uint32_t mbox
;
3196 pci_read_config_byte(phba
->pcidev
, PCI_HEADER_TYPE
, &hdrtype
);
3197 if (hdrtype
!= 0x80 ||
3198 (FC_JEDEC_ID(phba
->vpd
.rev
.biuRev
) != HELIOS_JEDEC_ID
&&
3199 FC_JEDEC_ID(phba
->vpd
.rev
.biuRev
) != THOR_JEDEC_ID
))
3203 * Tell the other part of the chip to suspend temporarily all
3206 resp_buf
= phba
->MBslimaddr
;
3208 /* Disable the error attention */
3209 hc_copy
= readl(phba
->HCregaddr
);
3210 writel((hc_copy
& ~HC_ERINT_ENA
), phba
->HCregaddr
);
3211 readl(phba
->HCregaddr
); /* flush */
3212 phba
->link_flag
|= LS_IGNORE_ERATT
;
3214 if (readl(phba
->HAregaddr
) & HA_ERATT
) {
3215 /* Clear Chip error bit */
3216 writel(HA_ERATT
, phba
->HAregaddr
);
3217 phba
->pport
->stopped
= 1;
3221 ((MAILBOX_t
*)&mbox
)->mbxCommand
= MBX_KILL_BOARD
;
3222 ((MAILBOX_t
*)&mbox
)->mbxOwner
= OWN_CHIP
;
3224 writel(BARRIER_TEST_PATTERN
, (resp_buf
+ 1));
3225 mbox_buf
= phba
->MBslimaddr
;
3226 writel(mbox
, mbox_buf
);
3229 readl(resp_buf
+ 1) != ~(BARRIER_TEST_PATTERN
) && i
< 50; i
++)
3232 if (readl(resp_buf
+ 1) != ~(BARRIER_TEST_PATTERN
)) {
3233 if (phba
->sli
.sli_flag
& LPFC_SLI_ACTIVE
||
3234 phba
->pport
->stopped
)
3240 ((MAILBOX_t
*)&mbox
)->mbxOwner
= OWN_HOST
;
3241 for (i
= 0; readl(resp_buf
) != mbox
&& i
< 500; i
++)
3246 while (!(readl(phba
->HAregaddr
) & HA_ERATT
) && ++i
< 500)
3249 if (readl(phba
->HAregaddr
) & HA_ERATT
) {
3250 writel(HA_ERATT
, phba
->HAregaddr
);
3251 phba
->pport
->stopped
= 1;
3255 phba
->link_flag
&= ~LS_IGNORE_ERATT
;
3256 writel(hc_copy
, phba
->HCregaddr
);
3257 readl(phba
->HCregaddr
); /* flush */
3261 * lpfc_sli_brdkill - Issue a kill_board mailbox command
3262 * @phba: Pointer to HBA context object.
3264 * This function issues a kill_board mailbox command and waits for
3265 * the error attention interrupt. This function is called for stopping
3266 * the firmware processing. The caller is not required to hold any
3267 * locks. This function calls lpfc_hba_down_post function to free
3268 * any pending commands after the kill. The function will return 1 when it
3269 * fails to kill the board else will return 0.
3272 lpfc_sli_brdkill(struct lpfc_hba
*phba
)
3274 struct lpfc_sli
*psli
;
3284 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3285 "0329 Kill HBA Data: x%x x%x\n",
3286 phba
->pport
->port_state
, psli
->sli_flag
);
3288 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3292 /* Disable the error attention */
3293 spin_lock_irq(&phba
->hbalock
);
3294 status
= readl(phba
->HCregaddr
);
3295 status
&= ~HC_ERINT_ENA
;
3296 writel(status
, phba
->HCregaddr
);
3297 readl(phba
->HCregaddr
); /* flush */
3298 phba
->link_flag
|= LS_IGNORE_ERATT
;
3299 spin_unlock_irq(&phba
->hbalock
);
3301 lpfc_kill_board(phba
, pmb
);
3302 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
3303 retval
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
3305 if (retval
!= MBX_SUCCESS
) {
3306 if (retval
!= MBX_BUSY
)
3307 mempool_free(pmb
, phba
->mbox_mem_pool
);
3308 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3309 "2752 KILL_BOARD command failed retval %d\n",
3311 spin_lock_irq(&phba
->hbalock
);
3312 phba
->link_flag
&= ~LS_IGNORE_ERATT
;
3313 spin_unlock_irq(&phba
->hbalock
);
3317 spin_lock_irq(&phba
->hbalock
);
3318 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
3319 spin_unlock_irq(&phba
->hbalock
);
3321 mempool_free(pmb
, phba
->mbox_mem_pool
);
3323 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
3324 * attention every 100ms for 3 seconds. If we don't get ERATT after
3325 * 3 seconds we still set HBA_ERROR state because the status of the
3326 * board is now undefined.
3328 ha_copy
= readl(phba
->HAregaddr
);
3330 while ((i
++ < 30) && !(ha_copy
& HA_ERATT
)) {
3332 ha_copy
= readl(phba
->HAregaddr
);
3335 del_timer_sync(&psli
->mbox_tmo
);
3336 if (ha_copy
& HA_ERATT
) {
3337 writel(HA_ERATT
, phba
->HAregaddr
);
3338 phba
->pport
->stopped
= 1;
3340 spin_lock_irq(&phba
->hbalock
);
3341 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
3342 psli
->mbox_active
= NULL
;
3343 phba
->link_flag
&= ~LS_IGNORE_ERATT
;
3344 spin_unlock_irq(&phba
->hbalock
);
3346 lpfc_hba_down_post(phba
);
3347 phba
->link_state
= LPFC_HBA_ERROR
;
3349 return ha_copy
& HA_ERATT
? 0 : 1;
3353 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
3354 * @phba: Pointer to HBA context object.
3356 * This function resets the HBA by writing HC_INITFF to the control
3357 * register. After the HBA resets, this function resets all the iocb ring
3358 * indices. This function disables PCI layer parity checking during
3360 * This function returns 0 always.
3361 * The caller is not required to hold any locks.
3364 lpfc_sli_brdreset(struct lpfc_hba
*phba
)
3366 struct lpfc_sli
*psli
;
3367 struct lpfc_sli_ring
*pring
;
3374 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3375 "0325 Reset HBA Data: x%x x%x\n",
3376 phba
->pport
->port_state
, psli
->sli_flag
);
3378 /* perform board reset */
3379 phba
->fc_eventTag
= 0;
3380 phba
->link_events
= 0;
3381 phba
->pport
->fc_myDID
= 0;
3382 phba
->pport
->fc_prevDID
= 0;
3384 /* Turn off parity checking and serr during the physical reset */
3385 pci_read_config_word(phba
->pcidev
, PCI_COMMAND
, &cfg_value
);
3386 pci_write_config_word(phba
->pcidev
, PCI_COMMAND
,
3388 ~(PCI_COMMAND_PARITY
| PCI_COMMAND_SERR
)));
3390 psli
->sli_flag
&= ~(LPFC_SLI_ACTIVE
| LPFC_PROCESS_LA
);
3392 /* Now toggle INITFF bit in the Host Control Register */
3393 writel(HC_INITFF
, phba
->HCregaddr
);
3395 readl(phba
->HCregaddr
); /* flush */
3396 writel(0, phba
->HCregaddr
);
3397 readl(phba
->HCregaddr
); /* flush */
3399 /* Restore PCI cmd register */
3400 pci_write_config_word(phba
->pcidev
, PCI_COMMAND
, cfg_value
);
3402 /* Initialize relevant SLI info */
3403 for (i
= 0; i
< psli
->num_rings
; i
++) {
3404 pring
= &psli
->ring
[i
];
3407 pring
->next_cmdidx
= 0;
3408 pring
->local_getidx
= 0;
3410 pring
->missbufcnt
= 0;
3413 phba
->link_state
= LPFC_WARM_START
;
3418 * lpfc_sli4_brdreset - Reset a sli-4 HBA
3419 * @phba: Pointer to HBA context object.
3421 * This function resets a SLI4 HBA. This function disables PCI layer parity
3422 * checking during resets the device. The caller is not required to hold
3425 * This function returns 0 always.
3428 lpfc_sli4_brdreset(struct lpfc_hba
*phba
)
3430 struct lpfc_sli
*psli
= &phba
->sli
;
3435 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3436 "0295 Reset HBA Data: x%x x%x\n",
3437 phba
->pport
->port_state
, psli
->sli_flag
);
3439 /* perform board reset */
3440 phba
->fc_eventTag
= 0;
3441 phba
->link_events
= 0;
3442 phba
->pport
->fc_myDID
= 0;
3443 phba
->pport
->fc_prevDID
= 0;
3445 /* Turn off parity checking and serr during the physical reset */
3446 pci_read_config_word(phba
->pcidev
, PCI_COMMAND
, &cfg_value
);
3447 pci_write_config_word(phba
->pcidev
, PCI_COMMAND
,
3449 ~(PCI_COMMAND_PARITY
| PCI_COMMAND_SERR
)));
3451 spin_lock_irq(&phba
->hbalock
);
3452 psli
->sli_flag
&= ~(LPFC_PROCESS_LA
);
3453 phba
->fcf
.fcf_flag
= 0;
3454 /* Clean up the child queue list for the CQs */
3455 list_del_init(&phba
->sli4_hba
.mbx_wq
->list
);
3456 list_del_init(&phba
->sli4_hba
.els_wq
->list
);
3457 list_del_init(&phba
->sli4_hba
.hdr_rq
->list
);
3458 list_del_init(&phba
->sli4_hba
.dat_rq
->list
);
3459 list_del_init(&phba
->sli4_hba
.mbx_cq
->list
);
3460 list_del_init(&phba
->sli4_hba
.els_cq
->list
);
3461 for (qindx
= 0; qindx
< phba
->cfg_fcp_wq_count
; qindx
++)
3462 list_del_init(&phba
->sli4_hba
.fcp_wq
[qindx
]->list
);
3463 for (qindx
= 0; qindx
< phba
->cfg_fcp_eq_count
; qindx
++)
3464 list_del_init(&phba
->sli4_hba
.fcp_cq
[qindx
]->list
);
3465 spin_unlock_irq(&phba
->hbalock
);
3467 /* Now physically reset the device */
3468 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
3469 "0389 Performing PCI function reset!\n");
3470 /* Perform FCoE PCI function reset */
3471 lpfc_pci_function_reset(phba
);
3477 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
3478 * @phba: Pointer to HBA context object.
3480 * This function is called in the SLI initialization code path to
3481 * restart the HBA. The caller is not required to hold any lock.
3482 * This function writes MBX_RESTART mailbox command to the SLIM and
3483 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
3484 * function to free any pending commands. The function enables
3485 * POST only during the first initialization. The function returns zero.
3486 * The function does not guarantee completion of MBX_RESTART mailbox
3487 * command before the return of this function.
3490 lpfc_sli_brdrestart_s3(struct lpfc_hba
*phba
)
3493 struct lpfc_sli
*psli
;
3494 volatile uint32_t word0
;
3495 void __iomem
*to_slim
;
3496 uint32_t hba_aer_enabled
;
3498 spin_lock_irq(&phba
->hbalock
);
3500 /* Take PCIe device Advanced Error Reporting (AER) state */
3501 hba_aer_enabled
= phba
->hba_flag
& HBA_AER_ENABLED
;
3506 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3507 "0337 Restart HBA Data: x%x x%x\n",
3508 phba
->pport
->port_state
, psli
->sli_flag
);
3511 mb
= (MAILBOX_t
*) &word0
;
3512 mb
->mbxCommand
= MBX_RESTART
;
3515 lpfc_reset_barrier(phba
);
3517 to_slim
= phba
->MBslimaddr
;
3518 writel(*(uint32_t *) mb
, to_slim
);
3519 readl(to_slim
); /* flush */
3521 /* Only skip post after fc_ffinit is completed */
3522 if (phba
->pport
->port_state
)
3523 word0
= 1; /* This is really setting up word1 */
3525 word0
= 0; /* This is really setting up word1 */
3526 to_slim
= phba
->MBslimaddr
+ sizeof (uint32_t);
3527 writel(*(uint32_t *) mb
, to_slim
);
3528 readl(to_slim
); /* flush */
3530 lpfc_sli_brdreset(phba
);
3531 phba
->pport
->stopped
= 0;
3532 phba
->link_state
= LPFC_INIT_START
;
3534 spin_unlock_irq(&phba
->hbalock
);
3536 memset(&psli
->lnk_stat_offsets
, 0, sizeof(psli
->lnk_stat_offsets
));
3537 psli
->stats_start
= get_seconds();
3539 /* Give the INITFF and Post time to settle. */
3542 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
3543 if (hba_aer_enabled
)
3544 pci_disable_pcie_error_reporting(phba
->pcidev
);
3546 lpfc_hba_down_post(phba
);
3552 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
3553 * @phba: Pointer to HBA context object.
3555 * This function is called in the SLI initialization code path to restart
3556 * a SLI4 HBA. The caller is not required to hold any lock.
3557 * At the end of the function, it calls lpfc_hba_down_post function to
3558 * free any pending commands.
3561 lpfc_sli_brdrestart_s4(struct lpfc_hba
*phba
)
3563 struct lpfc_sli
*psli
= &phba
->sli
;
3567 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3568 "0296 Restart HBA Data: x%x x%x\n",
3569 phba
->pport
->port_state
, psli
->sli_flag
);
3571 lpfc_sli4_brdreset(phba
);
3573 spin_lock_irq(&phba
->hbalock
);
3574 phba
->pport
->stopped
= 0;
3575 phba
->link_state
= LPFC_INIT_START
;
3577 spin_unlock_irq(&phba
->hbalock
);
3579 memset(&psli
->lnk_stat_offsets
, 0, sizeof(psli
->lnk_stat_offsets
));
3580 psli
->stats_start
= get_seconds();
3582 lpfc_hba_down_post(phba
);
3588 * lpfc_sli_brdrestart - Wrapper func for restarting hba
3589 * @phba: Pointer to HBA context object.
3591 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
3592 * API jump table function pointer from the lpfc_hba struct.
3595 lpfc_sli_brdrestart(struct lpfc_hba
*phba
)
3597 return phba
->lpfc_sli_brdrestart(phba
);
3601 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
3602 * @phba: Pointer to HBA context object.
3604 * This function is called after a HBA restart to wait for successful
3605 * restart of the HBA. Successful restart of the HBA is indicated by
3606 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
3607 * iteration, the function will restart the HBA again. The function returns
3608 * zero if HBA successfully restarted else returns negative error code.
3611 lpfc_sli_chipset_init(struct lpfc_hba
*phba
)
3613 uint32_t status
, i
= 0;
3615 /* Read the HBA Host Status Register */
3616 status
= readl(phba
->HSregaddr
);
3618 /* Check status register to see what current state is */
3620 while ((status
& (HS_FFRDY
| HS_MBRDY
)) != (HS_FFRDY
| HS_MBRDY
)) {
3622 /* Check every 100ms for 5 retries, then every 500ms for 5, then
3623 * every 2.5 sec for 5, then reset board and every 2.5 sec for
3627 /* Adapter failed to init, timeout, status reg
3629 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3630 "0436 Adapter failed to init, "
3631 "timeout, status reg x%x, "
3632 "FW Data: A8 x%x AC x%x\n", status
,
3633 readl(phba
->MBslimaddr
+ 0xa8),
3634 readl(phba
->MBslimaddr
+ 0xac));
3635 phba
->link_state
= LPFC_HBA_ERROR
;
3639 /* Check to see if any errors occurred during init */
3640 if (status
& HS_FFERM
) {
3641 /* ERROR: During chipset initialization */
3642 /* Adapter failed to init, chipset, status reg
3644 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3645 "0437 Adapter failed to init, "
3646 "chipset, status reg x%x, "
3647 "FW Data: A8 x%x AC x%x\n", status
,
3648 readl(phba
->MBslimaddr
+ 0xa8),
3649 readl(phba
->MBslimaddr
+ 0xac));
3650 phba
->link_state
= LPFC_HBA_ERROR
;
3656 } else if (i
<= 10) {
3664 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
3665 lpfc_sli_brdrestart(phba
);
3667 /* Read the HBA Host Status Register */
3668 status
= readl(phba
->HSregaddr
);
3671 /* Check to see if any errors occurred during init */
3672 if (status
& HS_FFERM
) {
3673 /* ERROR: During chipset initialization */
3674 /* Adapter failed to init, chipset, status reg <status> */
3675 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3676 "0438 Adapter failed to init, chipset, "
3678 "FW Data: A8 x%x AC x%x\n", status
,
3679 readl(phba
->MBslimaddr
+ 0xa8),
3680 readl(phba
->MBslimaddr
+ 0xac));
3681 phba
->link_state
= LPFC_HBA_ERROR
;
3685 /* Clear all interrupt enable conditions */
3686 writel(0, phba
->HCregaddr
);
3687 readl(phba
->HCregaddr
); /* flush */
3689 /* setup host attn register */
3690 writel(0xffffffff, phba
->HAregaddr
);
3691 readl(phba
->HAregaddr
); /* flush */
3696 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
3698 * This function calculates and returns the number of HBQs required to be
3702 lpfc_sli_hbq_count(void)
3704 return ARRAY_SIZE(lpfc_hbq_defs
);
3708 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
3710 * This function adds the number of hbq entries in every HBQ to get
3711 * the total number of hbq entries required for the HBA and returns
3715 lpfc_sli_hbq_entry_count(void)
3717 int hbq_count
= lpfc_sli_hbq_count();
3721 for (i
= 0; i
< hbq_count
; ++i
)
3722 count
+= lpfc_hbq_defs
[i
]->entry_count
;
3727 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
3729 * This function calculates amount of memory required for all hbq entries
3730 * to be configured and returns the total memory required.
3733 lpfc_sli_hbq_size(void)
3735 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry
);
3739 * lpfc_sli_hbq_setup - configure and initialize HBQs
3740 * @phba: Pointer to HBA context object.
3742 * This function is called during the SLI initialization to configure
3743 * all the HBQs and post buffers to the HBQ. The caller is not
3744 * required to hold any locks. This function will return zero if successful
3745 * else it will return negative error code.
3748 lpfc_sli_hbq_setup(struct lpfc_hba
*phba
)
3750 int hbq_count
= lpfc_sli_hbq_count();
3754 uint32_t hbq_entry_index
;
3756 /* Get a Mailbox buffer to setup mailbox
3757 * commands for HBA initialization
3759 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3766 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
3767 phba
->link_state
= LPFC_INIT_MBX_CMDS
;
3768 phba
->hbq_in_use
= 1;
3770 hbq_entry_index
= 0;
3771 for (hbqno
= 0; hbqno
< hbq_count
; ++hbqno
) {
3772 phba
->hbqs
[hbqno
].next_hbqPutIdx
= 0;
3773 phba
->hbqs
[hbqno
].hbqPutIdx
= 0;
3774 phba
->hbqs
[hbqno
].local_hbqGetIdx
= 0;
3775 phba
->hbqs
[hbqno
].entry_count
=
3776 lpfc_hbq_defs
[hbqno
]->entry_count
;
3777 lpfc_config_hbq(phba
, hbqno
, lpfc_hbq_defs
[hbqno
],
3778 hbq_entry_index
, pmb
);
3779 hbq_entry_index
+= phba
->hbqs
[hbqno
].entry_count
;
3781 if (lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
) != MBX_SUCCESS
) {
3782 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
3783 mbxStatus <status>, ring <num> */
3785 lpfc_printf_log(phba
, KERN_ERR
,
3786 LOG_SLI
| LOG_VPORT
,
3787 "1805 Adapter failed to init. "
3788 "Data: x%x x%x x%x\n",
3790 pmbox
->mbxStatus
, hbqno
);
3792 phba
->link_state
= LPFC_HBA_ERROR
;
3793 mempool_free(pmb
, phba
->mbox_mem_pool
);
3797 phba
->hbq_count
= hbq_count
;
3799 mempool_free(pmb
, phba
->mbox_mem_pool
);
3801 /* Initially populate or replenish the HBQs */
3802 for (hbqno
= 0; hbqno
< hbq_count
; ++hbqno
)
3803 lpfc_sli_hbqbuf_init_hbqs(phba
, hbqno
);
3808 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
3809 * @phba: Pointer to HBA context object.
3811 * This function is called during the SLI initialization to configure
3812 * all the HBQs and post buffers to the HBQ. The caller is not
3813 * required to hold any locks. This function will return zero if successful
3814 * else it will return negative error code.
3817 lpfc_sli4_rb_setup(struct lpfc_hba
*phba
)
3819 phba
->hbq_in_use
= 1;
3820 phba
->hbqs
[0].entry_count
= lpfc_hbq_defs
[0]->entry_count
;
3821 phba
->hbq_count
= 1;
3822 /* Initially populate or replenish the HBQs */
3823 lpfc_sli_hbqbuf_init_hbqs(phba
, 0);
3828 * lpfc_sli_config_port - Issue config port mailbox command
3829 * @phba: Pointer to HBA context object.
3830 * @sli_mode: sli mode - 2/3
3832 * This function is called by the sli intialization code path
3833 * to issue config_port mailbox command. This function restarts the
3834 * HBA firmware and issues a config_port mailbox command to configure
3835 * the SLI interface in the sli mode specified by sli_mode
3836 * variable. The caller is not required to hold any locks.
3837 * The function returns 0 if successful, else returns negative error
3841 lpfc_sli_config_port(struct lpfc_hba
*phba
, int sli_mode
)
3844 uint32_t resetcount
= 0, rc
= 0, done
= 0;
3846 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3848 phba
->link_state
= LPFC_HBA_ERROR
;
3852 phba
->sli_rev
= sli_mode
;
3853 while (resetcount
< 2 && !done
) {
3854 spin_lock_irq(&phba
->hbalock
);
3855 phba
->sli
.sli_flag
|= LPFC_SLI_MBOX_ACTIVE
;
3856 spin_unlock_irq(&phba
->hbalock
);
3857 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
3858 lpfc_sli_brdrestart(phba
);
3859 rc
= lpfc_sli_chipset_init(phba
);
3863 spin_lock_irq(&phba
->hbalock
);
3864 phba
->sli
.sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
3865 spin_unlock_irq(&phba
->hbalock
);
3868 /* Call pre CONFIG_PORT mailbox command initialization. A
3869 * value of 0 means the call was successful. Any other
3870 * nonzero value is a failure, but if ERESTART is returned,
3871 * the driver may reset the HBA and try again.
3873 rc
= lpfc_config_port_prep(phba
);
3874 if (rc
== -ERESTART
) {
3875 phba
->link_state
= LPFC_LINK_UNKNOWN
;
3879 phba
->link_state
= LPFC_INIT_MBX_CMDS
;
3880 lpfc_config_port(phba
, pmb
);
3881 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
3882 phba
->sli3_options
&= ~(LPFC_SLI3_NPIV_ENABLED
|
3883 LPFC_SLI3_HBQ_ENABLED
|
3884 LPFC_SLI3_CRP_ENABLED
|
3885 LPFC_SLI3_INB_ENABLED
|
3886 LPFC_SLI3_BG_ENABLED
);
3887 if (rc
!= MBX_SUCCESS
) {
3888 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3889 "0442 Adapter failed to init, mbxCmd x%x "
3890 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
3891 pmb
->u
.mb
.mbxCommand
, pmb
->u
.mb
.mbxStatus
, 0);
3892 spin_lock_irq(&phba
->hbalock
);
3893 phba
->sli
.sli_flag
&= ~LPFC_SLI_ACTIVE
;
3894 spin_unlock_irq(&phba
->hbalock
);
3897 /* Allow asynchronous mailbox command to go through */
3898 spin_lock_irq(&phba
->hbalock
);
3899 phba
->sli
.sli_flag
&= ~LPFC_SLI_ASYNC_MBX_BLK
;
3900 spin_unlock_irq(&phba
->hbalock
);
3906 goto do_prep_failed
;
3908 if (pmb
->u
.mb
.un
.varCfgPort
.sli_mode
== 3) {
3909 if (!pmb
->u
.mb
.un
.varCfgPort
.cMA
) {
3911 goto do_prep_failed
;
3913 if (phba
->max_vpi
&& pmb
->u
.mb
.un
.varCfgPort
.gmv
) {
3914 phba
->sli3_options
|= LPFC_SLI3_NPIV_ENABLED
;
3915 phba
->max_vpi
= pmb
->u
.mb
.un
.varCfgPort
.max_vpi
;
3916 phba
->max_vports
= (phba
->max_vpi
> phba
->max_vports
) ?
3917 phba
->max_vpi
: phba
->max_vports
;
3921 if (pmb
->u
.mb
.un
.varCfgPort
.gdss
)
3922 phba
->sli3_options
|= LPFC_SLI3_DSS_ENABLED
;
3923 if (pmb
->u
.mb
.un
.varCfgPort
.gerbm
)
3924 phba
->sli3_options
|= LPFC_SLI3_HBQ_ENABLED
;
3925 if (pmb
->u
.mb
.un
.varCfgPort
.gcrp
)
3926 phba
->sli3_options
|= LPFC_SLI3_CRP_ENABLED
;
3927 if (pmb
->u
.mb
.un
.varCfgPort
.ginb
) {
3928 phba
->sli3_options
|= LPFC_SLI3_INB_ENABLED
;
3929 phba
->hbq_get
= phba
->mbox
->us
.s3_inb_pgp
.hbq_get
;
3930 phba
->port_gp
= phba
->mbox
->us
.s3_inb_pgp
.port
;
3931 phba
->inb_ha_copy
= &phba
->mbox
->us
.s3_inb_pgp
.ha_copy
;
3932 phba
->inb_counter
= &phba
->mbox
->us
.s3_inb_pgp
.counter
;
3933 phba
->inb_last_counter
=
3934 phba
->mbox
->us
.s3_inb_pgp
.counter
;
3936 phba
->hbq_get
= phba
->mbox
->us
.s3_pgp
.hbq_get
;
3937 phba
->port_gp
= phba
->mbox
->us
.s3_pgp
.port
;
3938 phba
->inb_ha_copy
= NULL
;
3939 phba
->inb_counter
= NULL
;
3942 if (phba
->cfg_enable_bg
) {
3943 if (pmb
->u
.mb
.un
.varCfgPort
.gbg
)
3944 phba
->sli3_options
|= LPFC_SLI3_BG_ENABLED
;
3946 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3947 "0443 Adapter did not grant "
3951 phba
->hbq_get
= NULL
;
3952 phba
->port_gp
= phba
->mbox
->us
.s2
.port
;
3953 phba
->inb_ha_copy
= NULL
;
3954 phba
->inb_counter
= NULL
;
3958 mempool_free(pmb
, phba
->mbox_mem_pool
);
3964 * lpfc_sli_hba_setup - SLI intialization function
3965 * @phba: Pointer to HBA context object.
3967 * This function is the main SLI intialization function. This function
3968 * is called by the HBA intialization code, HBA reset code and HBA
3969 * error attention handler code. Caller is not required to hold any
3970 * locks. This function issues config_port mailbox command to configure
3971 * the SLI, setup iocb rings and HBQ rings. In the end the function
3972 * calls the config_port_post function to issue init_link mailbox
3973 * command and to start the discovery. The function will return zero
3974 * if successful, else it will return negative error code.
3977 lpfc_sli_hba_setup(struct lpfc_hba
*phba
)
3982 switch (lpfc_sli_mode
) {
3984 if (phba
->cfg_enable_npiv
) {
3985 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
| LOG_VPORT
,
3986 "1824 NPIV enabled: Override lpfc_sli_mode "
3987 "parameter (%d) to auto (0).\n",
3997 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
| LOG_VPORT
,
3998 "1819 Unrecognized lpfc_sli_mode "
3999 "parameter: %d.\n", lpfc_sli_mode
);
4004 rc
= lpfc_sli_config_port(phba
, mode
);
4006 if (rc
&& lpfc_sli_mode
== 3)
4007 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
| LOG_VPORT
,
4008 "1820 Unable to select SLI-3. "
4009 "Not supported by adapter.\n");
4010 if (rc
&& mode
!= 2)
4011 rc
= lpfc_sli_config_port(phba
, 2);
4013 goto lpfc_sli_hba_setup_error
;
4015 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4016 if (phba
->cfg_aer_support
== 1 && !(phba
->hba_flag
& HBA_AER_ENABLED
)) {
4017 rc
= pci_enable_pcie_error_reporting(phba
->pcidev
);
4019 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4020 "2709 This device supports "
4021 "Advanced Error Reporting (AER)\n");
4022 spin_lock_irq(&phba
->hbalock
);
4023 phba
->hba_flag
|= HBA_AER_ENABLED
;
4024 spin_unlock_irq(&phba
->hbalock
);
4026 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4027 "2708 This device does not support "
4028 "Advanced Error Reporting (AER)\n");
4029 phba
->cfg_aer_support
= 0;
4033 if (phba
->sli_rev
== 3) {
4034 phba
->iocb_cmd_size
= SLI3_IOCB_CMD_SIZE
;
4035 phba
->iocb_rsp_size
= SLI3_IOCB_RSP_SIZE
;
4037 phba
->iocb_cmd_size
= SLI2_IOCB_CMD_SIZE
;
4038 phba
->iocb_rsp_size
= SLI2_IOCB_RSP_SIZE
;
4039 phba
->sli3_options
= 0;
4042 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4043 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
4044 phba
->sli_rev
, phba
->max_vpi
);
4045 rc
= lpfc_sli_ring_map(phba
);
4048 goto lpfc_sli_hba_setup_error
;
4051 if (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) {
4052 rc
= lpfc_sli_hbq_setup(phba
);
4054 goto lpfc_sli_hba_setup_error
;
4056 spin_lock_irq(&phba
->hbalock
);
4057 phba
->sli
.sli_flag
|= LPFC_PROCESS_LA
;
4058 spin_unlock_irq(&phba
->hbalock
);
4060 rc
= lpfc_config_port_post(phba
);
4062 goto lpfc_sli_hba_setup_error
;
4066 lpfc_sli_hba_setup_error
:
4067 phba
->link_state
= LPFC_HBA_ERROR
;
4068 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4069 "0445 Firmware initialization failed\n");
4074 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
4075 * @phba: Pointer to HBA context object.
4076 * @mboxq: mailbox pointer.
4077 * This function issue a dump mailbox command to read config region
4078 * 23 and parse the records in the region and populate driver
4082 lpfc_sli4_read_fcoe_params(struct lpfc_hba
*phba
,
4083 LPFC_MBOXQ_t
*mboxq
)
4085 struct lpfc_dmabuf
*mp
;
4086 struct lpfc_mqe
*mqe
;
4087 uint32_t data_length
;
4090 /* Program the default value of vlan_id and fc_map */
4091 phba
->valid_vlan
= 0;
4092 phba
->fc_map
[0] = LPFC_FCOE_FCF_MAP0
;
4093 phba
->fc_map
[1] = LPFC_FCOE_FCF_MAP1
;
4094 phba
->fc_map
[2] = LPFC_FCOE_FCF_MAP2
;
4096 mqe
= &mboxq
->u
.mqe
;
4097 if (lpfc_dump_fcoe_param(phba
, mboxq
))
4100 mp
= (struct lpfc_dmabuf
*) mboxq
->context1
;
4101 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4103 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
4104 "(%d):2571 Mailbox cmd x%x Status x%x "
4105 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4106 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4107 "CQ: x%x x%x x%x x%x\n",
4108 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
4109 bf_get(lpfc_mqe_command
, mqe
),
4110 bf_get(lpfc_mqe_status
, mqe
),
4111 mqe
->un
.mb_words
[0], mqe
->un
.mb_words
[1],
4112 mqe
->un
.mb_words
[2], mqe
->un
.mb_words
[3],
4113 mqe
->un
.mb_words
[4], mqe
->un
.mb_words
[5],
4114 mqe
->un
.mb_words
[6], mqe
->un
.mb_words
[7],
4115 mqe
->un
.mb_words
[8], mqe
->un
.mb_words
[9],
4116 mqe
->un
.mb_words
[10], mqe
->un
.mb_words
[11],
4117 mqe
->un
.mb_words
[12], mqe
->un
.mb_words
[13],
4118 mqe
->un
.mb_words
[14], mqe
->un
.mb_words
[15],
4119 mqe
->un
.mb_words
[16], mqe
->un
.mb_words
[50],
4121 mboxq
->mcqe
.mcqe_tag0
, mboxq
->mcqe
.mcqe_tag1
,
4122 mboxq
->mcqe
.trailer
);
4125 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
4129 data_length
= mqe
->un
.mb_words
[5];
4130 if (data_length
> DMP_RGN23_SIZE
) {
4131 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
4136 lpfc_parse_fcoe_conf(phba
, mp
->virt
, data_length
);
4137 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
4143 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
4144 * @phba: pointer to lpfc hba data structure.
4145 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
4146 * @vpd: pointer to the memory to hold resulting port vpd data.
4147 * @vpd_size: On input, the number of bytes allocated to @vpd.
4148 * On output, the number of data bytes in @vpd.
4150 * This routine executes a READ_REV SLI4 mailbox command. In
4151 * addition, this routine gets the port vpd data.
4155 * ENOMEM - could not allocated memory.
4158 lpfc_sli4_read_rev(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
,
4159 uint8_t *vpd
, uint32_t *vpd_size
)
4163 struct lpfc_dmabuf
*dmabuf
;
4164 struct lpfc_mqe
*mqe
;
4166 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
4171 * Get a DMA buffer for the vpd data resulting from the READ_REV
4174 dma_size
= *vpd_size
;
4175 dmabuf
->virt
= dma_alloc_coherent(&phba
->pcidev
->dev
,
4179 if (!dmabuf
->virt
) {
4183 memset(dmabuf
->virt
, 0, dma_size
);
4186 * The SLI4 implementation of READ_REV conflicts at word1,
4187 * bits 31:16 and SLI4 adds vpd functionality not present
4188 * in SLI3. This code corrects the conflicts.
4190 lpfc_read_rev(phba
, mboxq
);
4191 mqe
= &mboxq
->u
.mqe
;
4192 mqe
->un
.read_rev
.vpd_paddr_high
= putPaddrHigh(dmabuf
->phys
);
4193 mqe
->un
.read_rev
.vpd_paddr_low
= putPaddrLow(dmabuf
->phys
);
4194 mqe
->un
.read_rev
.word1
&= 0x0000FFFF;
4195 bf_set(lpfc_mbx_rd_rev_vpd
, &mqe
->un
.read_rev
, 1);
4196 bf_set(lpfc_mbx_rd_rev_avail_len
, &mqe
->un
.read_rev
, dma_size
);
4198 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4200 dma_free_coherent(&phba
->pcidev
->dev
, dma_size
,
4201 dmabuf
->virt
, dmabuf
->phys
);
4207 * The available vpd length cannot be bigger than the
4208 * DMA buffer passed to the port. Catch the less than
4209 * case and update the caller's size.
4211 if (mqe
->un
.read_rev
.avail_vpd_len
< *vpd_size
)
4212 *vpd_size
= mqe
->un
.read_rev
.avail_vpd_len
;
4214 lpfc_sli_pcimem_bcopy(dmabuf
->virt
, vpd
, *vpd_size
);
4215 dma_free_coherent(&phba
->pcidev
->dev
, dma_size
,
4216 dmabuf
->virt
, dmabuf
->phys
);
4222 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
4223 * @phba: pointer to lpfc hba data structure.
4225 * This routine is called to explicitly arm the SLI4 device's completion and
4229 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba
*phba
)
4233 lpfc_sli4_cq_release(phba
->sli4_hba
.mbx_cq
, LPFC_QUEUE_REARM
);
4234 lpfc_sli4_cq_release(phba
->sli4_hba
.els_cq
, LPFC_QUEUE_REARM
);
4235 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_eq_count
; fcp_eqidx
++)
4236 lpfc_sli4_cq_release(phba
->sli4_hba
.fcp_cq
[fcp_eqidx
],
4238 lpfc_sli4_eq_release(phba
->sli4_hba
.sp_eq
, LPFC_QUEUE_REARM
);
4239 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_eq_count
; fcp_eqidx
++)
4240 lpfc_sli4_eq_release(phba
->sli4_hba
.fp_eq
[fcp_eqidx
],
4245 * lpfc_sli4_hba_setup - SLI4 device intialization PCI function
4246 * @phba: Pointer to HBA context object.
4248 * This function is the main SLI4 device intialization PCI function. This
4249 * function is called by the HBA intialization code, HBA reset code and
4250 * HBA error attention handler code. Caller is not required to hold any
4254 lpfc_sli4_hba_setup(struct lpfc_hba
*phba
)
4257 LPFC_MBOXQ_t
*mboxq
;
4258 struct lpfc_mqe
*mqe
;
4261 uint32_t ftr_rsp
= 0;
4262 struct Scsi_Host
*shost
= lpfc_shost_from_vport(phba
->pport
);
4263 struct lpfc_vport
*vport
= phba
->pport
;
4264 struct lpfc_dmabuf
*mp
;
4266 /* Perform a PCI function reset to start from clean */
4267 rc
= lpfc_pci_function_reset(phba
);
4271 /* Check the HBA Host Status Register for readyness */
4272 rc
= lpfc_sli4_post_status_check(phba
);
4276 spin_lock_irq(&phba
->hbalock
);
4277 phba
->sli
.sli_flag
|= LPFC_SLI_ACTIVE
;
4278 spin_unlock_irq(&phba
->hbalock
);
4282 * Allocate a single mailbox container for initializing the
4285 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4290 * Continue initialization with default values even if driver failed
4291 * to read FCoE param config regions
4293 if (lpfc_sli4_read_fcoe_params(phba
, mboxq
))
4294 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_INIT
,
4295 "2570 Failed to read FCoE parameters\n");
4297 /* Issue READ_REV to collect vpd and FW information. */
4298 vpd_size
= PAGE_SIZE
;
4299 vpd
= kzalloc(vpd_size
, GFP_KERNEL
);
4305 rc
= lpfc_sli4_read_rev(phba
, mboxq
, vpd
, &vpd_size
);
4309 mqe
= &mboxq
->u
.mqe
;
4310 phba
->sli_rev
= bf_get(lpfc_mbx_rd_rev_sli_lvl
, &mqe
->un
.read_rev
);
4311 if (bf_get(lpfc_mbx_rd_rev_fcoe
, &mqe
->un
.read_rev
))
4312 phba
->hba_flag
|= HBA_FCOE_SUPPORT
;
4314 if (bf_get(lpfc_mbx_rd_rev_cee_ver
, &mqe
->un
.read_rev
) ==
4316 phba
->hba_flag
|= HBA_FIP_SUPPORT
;
4318 phba
->hba_flag
&= ~HBA_FIP_SUPPORT
;
4320 if (phba
->sli_rev
!= LPFC_SLI_REV4
||
4321 !(phba
->hba_flag
& HBA_FCOE_SUPPORT
)) {
4322 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4323 "0376 READ_REV Error. SLI Level %d "
4324 "FCoE enabled %d\n",
4325 phba
->sli_rev
, phba
->hba_flag
& HBA_FCOE_SUPPORT
);
4330 * Evaluate the read rev and vpd data. Populate the driver
4331 * state with the results. If this routine fails, the failure
4332 * is not fatal as the driver will use generic values.
4334 rc
= lpfc_parse_vpd(phba
, vpd
, vpd_size
);
4335 if (unlikely(!rc
)) {
4336 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4337 "0377 Error %d parsing vpd. "
4338 "Using defaults.\n", rc
);
4342 /* Save information as VPD data */
4343 phba
->vpd
.rev
.biuRev
= mqe
->un
.read_rev
.first_hw_rev
;
4344 phba
->vpd
.rev
.smRev
= mqe
->un
.read_rev
.second_hw_rev
;
4345 phba
->vpd
.rev
.endecRev
= mqe
->un
.read_rev
.third_hw_rev
;
4346 phba
->vpd
.rev
.fcphHigh
= bf_get(lpfc_mbx_rd_rev_fcph_high
,
4348 phba
->vpd
.rev
.fcphLow
= bf_get(lpfc_mbx_rd_rev_fcph_low
,
4350 phba
->vpd
.rev
.feaLevelHigh
= bf_get(lpfc_mbx_rd_rev_ftr_lvl_high
,
4352 phba
->vpd
.rev
.feaLevelLow
= bf_get(lpfc_mbx_rd_rev_ftr_lvl_low
,
4354 phba
->vpd
.rev
.sli1FwRev
= mqe
->un
.read_rev
.fw_id_rev
;
4355 memcpy(phba
->vpd
.rev
.sli1FwName
, mqe
->un
.read_rev
.fw_name
, 16);
4356 phba
->vpd
.rev
.sli2FwRev
= mqe
->un
.read_rev
.ulp_fw_id_rev
;
4357 memcpy(phba
->vpd
.rev
.sli2FwName
, mqe
->un
.read_rev
.ulp_fw_name
, 16);
4358 phba
->vpd
.rev
.opFwRev
= mqe
->un
.read_rev
.fw_id_rev
;
4359 memcpy(phba
->vpd
.rev
.opFwName
, mqe
->un
.read_rev
.fw_name
, 16);
4360 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
4361 "(%d):0380 READ_REV Status x%x "
4362 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
4363 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
4364 bf_get(lpfc_mqe_status
, mqe
),
4365 phba
->vpd
.rev
.opFwName
,
4366 phba
->vpd
.rev
.fcphHigh
, phba
->vpd
.rev
.fcphLow
,
4367 phba
->vpd
.rev
.feaLevelHigh
, phba
->vpd
.rev
.feaLevelLow
);
4370 * Discover the port's supported feature set and match it against the
4373 lpfc_request_features(phba
, mboxq
);
4374 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4381 * The port must support FCP initiator mode as this is the
4382 * only mode running in the host.
4384 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi
, &mqe
->un
.req_ftrs
))) {
4385 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_SLI
,
4386 "0378 No support for fcpi mode.\n");
4391 * If the port cannot support the host's requested features
4392 * then turn off the global config parameters to disable the
4393 * feature in the driver. This is not a fatal error.
4395 if ((phba
->cfg_enable_bg
) &&
4396 !(bf_get(lpfc_mbx_rq_ftr_rsp_dif
, &mqe
->un
.req_ftrs
)))
4399 if (phba
->max_vpi
&& phba
->cfg_enable_npiv
&&
4400 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv
, &mqe
->un
.req_ftrs
)))
4404 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_SLI
,
4405 "0379 Feature Mismatch Data: x%08x %08x "
4406 "x%x x%x x%x\n", mqe
->un
.req_ftrs
.word2
,
4407 mqe
->un
.req_ftrs
.word3
, phba
->cfg_enable_bg
,
4408 phba
->cfg_enable_npiv
, phba
->max_vpi
);
4409 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif
, &mqe
->un
.req_ftrs
)))
4410 phba
->cfg_enable_bg
= 0;
4411 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv
, &mqe
->un
.req_ftrs
)))
4412 phba
->cfg_enable_npiv
= 0;
4415 /* These SLI3 features are assumed in SLI4 */
4416 spin_lock_irq(&phba
->hbalock
);
4417 phba
->sli3_options
|= (LPFC_SLI3_NPIV_ENABLED
| LPFC_SLI3_HBQ_ENABLED
);
4418 spin_unlock_irq(&phba
->hbalock
);
4420 /* Read the port's service parameters. */
4421 rc
= lpfc_read_sparam(phba
, mboxq
, vport
->vpi
);
4423 phba
->link_state
= LPFC_HBA_ERROR
;
4428 mboxq
->vport
= vport
;
4429 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4430 mp
= (struct lpfc_dmabuf
*) mboxq
->context1
;
4431 if (rc
== MBX_SUCCESS
) {
4432 memcpy(&vport
->fc_sparam
, mp
->virt
, sizeof(struct serv_parm
));
4437 * This memory was allocated by the lpfc_read_sparam routine. Release
4438 * it to the mbuf pool.
4440 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
4442 mboxq
->context1
= NULL
;
4444 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4445 "0382 READ_SPARAM command failed "
4446 "status %d, mbxStatus x%x\n",
4447 rc
, bf_get(lpfc_mqe_status
, mqe
));
4448 phba
->link_state
= LPFC_HBA_ERROR
;
4453 if (phba
->cfg_soft_wwnn
)
4454 u64_to_wwn(phba
->cfg_soft_wwnn
,
4455 vport
->fc_sparam
.nodeName
.u
.wwn
);
4456 if (phba
->cfg_soft_wwpn
)
4457 u64_to_wwn(phba
->cfg_soft_wwpn
,
4458 vport
->fc_sparam
.portName
.u
.wwn
);
4459 memcpy(&vport
->fc_nodename
, &vport
->fc_sparam
.nodeName
,
4460 sizeof(struct lpfc_name
));
4461 memcpy(&vport
->fc_portname
, &vport
->fc_sparam
.portName
,
4462 sizeof(struct lpfc_name
));
4464 /* Update the fc_host data structures with new wwn. */
4465 fc_host_node_name(shost
) = wwn_to_u64(vport
->fc_nodename
.u
.wwn
);
4466 fc_host_port_name(shost
) = wwn_to_u64(vport
->fc_portname
.u
.wwn
);
4468 /* Register SGL pool to the device using non-embedded mailbox command */
4469 rc
= lpfc_sli4_post_sgl_list(phba
);
4471 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4472 "0582 Error %d during sgl post operation\n",
4478 /* Register SCSI SGL pool to the device */
4479 rc
= lpfc_sli4_repost_scsi_sgl_list(phba
);
4481 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_SLI
,
4482 "0383 Error %d during scsi sgl post "
4484 /* Some Scsi buffers were moved to the abort scsi list */
4485 /* A pci function reset will repost them */
4490 /* Post the rpi header region to the device. */
4491 rc
= lpfc_sli4_post_all_rpi_hdrs(phba
);
4493 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4494 "0393 Error %d during rpi post operation\n",
4500 /* Set up all the queues to the device */
4501 rc
= lpfc_sli4_queue_setup(phba
);
4503 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4504 "0381 Error %d during queue setup.\n ", rc
);
4505 goto out_stop_timers
;
4508 /* Arm the CQs and then EQs on device */
4509 lpfc_sli4_arm_cqeq_intr(phba
);
4511 /* Indicate device interrupt mode */
4512 phba
->sli4_hba
.intr_enable
= 1;
4514 /* Allow asynchronous mailbox command to go through */
4515 spin_lock_irq(&phba
->hbalock
);
4516 phba
->sli
.sli_flag
&= ~LPFC_SLI_ASYNC_MBX_BLK
;
4517 spin_unlock_irq(&phba
->hbalock
);
4519 /* Post receive buffers to the device */
4520 lpfc_sli4_rb_setup(phba
);
4522 /* Reset HBA FCF states after HBA reset */
4523 phba
->fcf
.fcf_flag
= 0;
4524 phba
->fcf
.current_rec
.flag
= 0;
4526 /* Start the ELS watchdog timer */
4527 mod_timer(&vport
->els_tmofunc
,
4528 jiffies
+ HZ
* (phba
->fc_ratov
* 2));
4530 /* Start heart beat timer */
4531 mod_timer(&phba
->hb_tmofunc
,
4532 jiffies
+ HZ
* LPFC_HB_MBOX_INTERVAL
);
4533 phba
->hb_outstanding
= 0;
4534 phba
->last_completion_time
= jiffies
;
4536 /* Start error attention (ERATT) polling timer */
4537 mod_timer(&phba
->eratt_poll
, jiffies
+ HZ
* LPFC_ERATT_POLL_INTERVAL
);
4540 * The port is ready, set the host's link state to LINK_DOWN
4541 * in preparation for link interrupts.
4543 lpfc_init_link(phba
, mboxq
, phba
->cfg_topology
, phba
->cfg_link_speed
);
4544 mboxq
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
4545 lpfc_set_loopback_flag(phba
);
4546 /* Change driver state to LPFC_LINK_DOWN right before init link */
4547 spin_lock_irq(&phba
->hbalock
);
4548 phba
->link_state
= LPFC_LINK_DOWN
;
4549 spin_unlock_irq(&phba
->hbalock
);
4550 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
4551 if (unlikely(rc
!= MBX_NOT_FINISHED
)) {
4557 /* Unset all the queues set up in this routine when error out */
4559 lpfc_sli4_queue_unset(phba
);
4563 lpfc_stop_hba_timers(phba
);
4567 mempool_free(mboxq
, phba
->mbox_mem_pool
);
4572 * lpfc_mbox_timeout - Timeout call back function for mbox timer
4573 * @ptr: context object - pointer to hba structure.
4575 * This is the callback function for mailbox timer. The mailbox
4576 * timer is armed when a new mailbox command is issued and the timer
4577 * is deleted when the mailbox complete. The function is called by
4578 * the kernel timer code when a mailbox does not complete within
4579 * expected time. This function wakes up the worker thread to
4580 * process the mailbox timeout and returns. All the processing is
4581 * done by the worker thread function lpfc_mbox_timeout_handler.
4584 lpfc_mbox_timeout(unsigned long ptr
)
4586 struct lpfc_hba
*phba
= (struct lpfc_hba
*) ptr
;
4587 unsigned long iflag
;
4588 uint32_t tmo_posted
;
4590 spin_lock_irqsave(&phba
->pport
->work_port_lock
, iflag
);
4591 tmo_posted
= phba
->pport
->work_port_events
& WORKER_MBOX_TMO
;
4593 phba
->pport
->work_port_events
|= WORKER_MBOX_TMO
;
4594 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, iflag
);
4597 lpfc_worker_wake_up(phba
);
4603 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
4604 * @phba: Pointer to HBA context object.
4606 * This function is called from worker thread when a mailbox command times out.
4607 * The caller is not required to hold any locks. This function will reset the
4608 * HBA and recover all the pending commands.
4611 lpfc_mbox_timeout_handler(struct lpfc_hba
*phba
)
4613 LPFC_MBOXQ_t
*pmbox
= phba
->sli
.mbox_active
;
4614 MAILBOX_t
*mb
= &pmbox
->u
.mb
;
4615 struct lpfc_sli
*psli
= &phba
->sli
;
4616 struct lpfc_sli_ring
*pring
;
4618 /* Check the pmbox pointer first. There is a race condition
4619 * between the mbox timeout handler getting executed in the
4620 * worklist and the mailbox actually completing. When this
4621 * race condition occurs, the mbox_active will be NULL.
4623 spin_lock_irq(&phba
->hbalock
);
4624 if (pmbox
== NULL
) {
4625 lpfc_printf_log(phba
, KERN_WARNING
,
4627 "0353 Active Mailbox cleared - mailbox timeout "
4629 spin_unlock_irq(&phba
->hbalock
);
4633 /* Mbox cmd <mbxCommand> timeout */
4634 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4635 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
4637 phba
->pport
->port_state
,
4639 phba
->sli
.mbox_active
);
4640 spin_unlock_irq(&phba
->hbalock
);
4642 /* Setting state unknown so lpfc_sli_abort_iocb_ring
4643 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
4644 * it to fail all oustanding SCSI IO.
4646 spin_lock_irq(&phba
->pport
->work_port_lock
);
4647 phba
->pport
->work_port_events
&= ~WORKER_MBOX_TMO
;
4648 spin_unlock_irq(&phba
->pport
->work_port_lock
);
4649 spin_lock_irq(&phba
->hbalock
);
4650 phba
->link_state
= LPFC_LINK_UNKNOWN
;
4651 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
4652 spin_unlock_irq(&phba
->hbalock
);
4654 pring
= &psli
->ring
[psli
->fcp_ring
];
4655 lpfc_sli_abort_iocb_ring(phba
, pring
);
4657 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4658 "0345 Resetting board due to mailbox timeout\n");
4660 /* Reset the HBA device */
4661 lpfc_reset_hba(phba
);
4665 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
4666 * @phba: Pointer to HBA context object.
4667 * @pmbox: Pointer to mailbox object.
4668 * @flag: Flag indicating how the mailbox need to be processed.
4670 * This function is called by discovery code and HBA management code
4671 * to submit a mailbox command to firmware with SLI-3 interface spec. This
4672 * function gets the hbalock to protect the data structures.
4673 * The mailbox command can be submitted in polling mode, in which case
4674 * this function will wait in a polling loop for the completion of the
4676 * If the mailbox is submitted in no_wait mode (not polling) the
4677 * function will submit the command and returns immediately without waiting
4678 * for the mailbox completion. The no_wait is supported only when HBA
4679 * is in SLI2/SLI3 mode - interrupts are enabled.
4680 * The SLI interface allows only one mailbox pending at a time. If the
4681 * mailbox is issued in polling mode and there is already a mailbox
4682 * pending, then the function will return an error. If the mailbox is issued
4683 * in NO_WAIT mode and there is a mailbox pending already, the function
4684 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
4685 * The sli layer owns the mailbox object until the completion of mailbox
4686 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
4687 * return codes the caller owns the mailbox command after the return of
4691 lpfc_sli_issue_mbox_s3(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmbox
,
4695 struct lpfc_sli
*psli
= &phba
->sli
;
4696 uint32_t status
, evtctr
;
4699 unsigned long timeout
;
4700 unsigned long drvr_flag
= 0;
4701 uint32_t word0
, ldata
;
4702 void __iomem
*to_slim
;
4703 int processing_queue
= 0;
4705 spin_lock_irqsave(&phba
->hbalock
, drvr_flag
);
4707 phba
->sli
.sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
4708 /* processing mbox queue from intr_handler */
4709 if (unlikely(psli
->sli_flag
& LPFC_SLI_ASYNC_MBX_BLK
)) {
4710 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
4713 processing_queue
= 1;
4714 pmbox
= lpfc_mbox_get(phba
);
4716 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
4721 if (pmbox
->mbox_cmpl
&& pmbox
->mbox_cmpl
!= lpfc_sli_def_mbox_cmpl
&&
4722 pmbox
->mbox_cmpl
!= lpfc_sli_wake_mbox_wait
) {
4724 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
4725 lpfc_printf_log(phba
, KERN_ERR
,
4726 LOG_MBOX
| LOG_VPORT
,
4727 "1806 Mbox x%x failed. No vport\n",
4728 pmbox
->u
.mb
.mbxCommand
);
4730 goto out_not_finished
;
4734 /* If the PCI channel is in offline state, do not post mbox. */
4735 if (unlikely(pci_channel_offline(phba
->pcidev
))) {
4736 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
4737 goto out_not_finished
;
4740 /* If HBA has a deferred error attention, fail the iocb. */
4741 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
4742 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
4743 goto out_not_finished
;
4749 status
= MBX_SUCCESS
;
4751 if (phba
->link_state
== LPFC_HBA_ERROR
) {
4752 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
4754 /* Mbox command <mbxCommand> cannot issue */
4755 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4756 "(%d):0311 Mailbox command x%x cannot "
4757 "issue Data: x%x x%x\n",
4758 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
4759 pmbox
->u
.mb
.mbxCommand
, psli
->sli_flag
, flag
);
4760 goto out_not_finished
;
4763 if (mb
->mbxCommand
!= MBX_KILL_BOARD
&& flag
& MBX_NOWAIT
&&
4764 !(readl(phba
->HCregaddr
) & HC_MBINT_ENA
)) {
4765 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
4766 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4767 "(%d):2528 Mailbox command x%x cannot "
4768 "issue Data: x%x x%x\n",
4769 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
4770 pmbox
->u
.mb
.mbxCommand
, psli
->sli_flag
, flag
);
4771 goto out_not_finished
;
4774 if (psli
->sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
4775 /* Polling for a mbox command when another one is already active
4776 * is not allowed in SLI. Also, the driver must have established
4777 * SLI2 mode to queue and process multiple mbox commands.
4780 if (flag
& MBX_POLL
) {
4781 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
4783 /* Mbox command <mbxCommand> cannot issue */
4784 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4785 "(%d):2529 Mailbox command x%x "
4786 "cannot issue Data: x%x x%x\n",
4787 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
4788 pmbox
->u
.mb
.mbxCommand
,
4789 psli
->sli_flag
, flag
);
4790 goto out_not_finished
;
4793 if (!(psli
->sli_flag
& LPFC_SLI_ACTIVE
)) {
4794 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
4795 /* Mbox command <mbxCommand> cannot issue */
4796 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4797 "(%d):2530 Mailbox command x%x "
4798 "cannot issue Data: x%x x%x\n",
4799 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
4800 pmbox
->u
.mb
.mbxCommand
,
4801 psli
->sli_flag
, flag
);
4802 goto out_not_finished
;
4805 /* Another mailbox command is still being processed, queue this
4806 * command to be processed later.
4808 lpfc_mbox_put(phba
, pmbox
);
4810 /* Mbox cmd issue - BUSY */
4811 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
4812 "(%d):0308 Mbox cmd issue - BUSY Data: "
4813 "x%x x%x x%x x%x\n",
4814 pmbox
->vport
? pmbox
->vport
->vpi
: 0xffffff,
4815 mb
->mbxCommand
, phba
->pport
->port_state
,
4816 psli
->sli_flag
, flag
);
4818 psli
->slistat
.mbox_busy
++;
4819 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
4822 lpfc_debugfs_disc_trc(pmbox
->vport
,
4823 LPFC_DISC_TRC_MBOX_VPORT
,
4824 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
4825 (uint32_t)mb
->mbxCommand
,
4826 mb
->un
.varWords
[0], mb
->un
.varWords
[1]);
4829 lpfc_debugfs_disc_trc(phba
->pport
,
4831 "MBOX Bsy: cmd:x%x mb:x%x x%x",
4832 (uint32_t)mb
->mbxCommand
,
4833 mb
->un
.varWords
[0], mb
->un
.varWords
[1]);
4839 psli
->sli_flag
|= LPFC_SLI_MBOX_ACTIVE
;
4841 /* If we are not polling, we MUST be in SLI2 mode */
4842 if (flag
!= MBX_POLL
) {
4843 if (!(psli
->sli_flag
& LPFC_SLI_ACTIVE
) &&
4844 (mb
->mbxCommand
!= MBX_KILL_BOARD
)) {
4845 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
4846 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
4847 /* Mbox command <mbxCommand> cannot issue */
4848 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4849 "(%d):2531 Mailbox command x%x "
4850 "cannot issue Data: x%x x%x\n",
4851 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
4852 pmbox
->u
.mb
.mbxCommand
,
4853 psli
->sli_flag
, flag
);
4854 goto out_not_finished
;
4856 /* timeout active mbox command */
4857 mod_timer(&psli
->mbox_tmo
, (jiffies
+
4858 (HZ
* lpfc_mbox_tmo_val(phba
, mb
->mbxCommand
))));
4861 /* Mailbox cmd <cmd> issue */
4862 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
4863 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
4865 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
4866 mb
->mbxCommand
, phba
->pport
->port_state
,
4867 psli
->sli_flag
, flag
);
4869 if (mb
->mbxCommand
!= MBX_HEARTBEAT
) {
4871 lpfc_debugfs_disc_trc(pmbox
->vport
,
4872 LPFC_DISC_TRC_MBOX_VPORT
,
4873 "MBOX Send vport: cmd:x%x mb:x%x x%x",
4874 (uint32_t)mb
->mbxCommand
,
4875 mb
->un
.varWords
[0], mb
->un
.varWords
[1]);
4878 lpfc_debugfs_disc_trc(phba
->pport
,
4880 "MBOX Send: cmd:x%x mb:x%x x%x",
4881 (uint32_t)mb
->mbxCommand
,
4882 mb
->un
.varWords
[0], mb
->un
.varWords
[1]);
4886 psli
->slistat
.mbox_cmd
++;
4887 evtctr
= psli
->slistat
.mbox_event
;
4889 /* next set own bit for the adapter and copy over command word */
4890 mb
->mbxOwner
= OWN_CHIP
;
4892 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
4893 /* First copy command data to host SLIM area */
4894 lpfc_sli_pcimem_bcopy(mb
, phba
->mbox
, MAILBOX_CMD_SIZE
);
4896 if (mb
->mbxCommand
== MBX_CONFIG_PORT
) {
4897 /* copy command data into host mbox for cmpl */
4898 lpfc_sli_pcimem_bcopy(mb
, phba
->mbox
, MAILBOX_CMD_SIZE
);
4901 /* First copy mbox command data to HBA SLIM, skip past first
4903 to_slim
= phba
->MBslimaddr
+ sizeof (uint32_t);
4904 lpfc_memcpy_to_slim(to_slim
, &mb
->un
.varWords
[0],
4905 MAILBOX_CMD_SIZE
- sizeof (uint32_t));
4907 /* Next copy over first word, with mbxOwner set */
4908 ldata
= *((uint32_t *)mb
);
4909 to_slim
= phba
->MBslimaddr
;
4910 writel(ldata
, to_slim
);
4911 readl(to_slim
); /* flush */
4913 if (mb
->mbxCommand
== MBX_CONFIG_PORT
) {
4914 /* switch over to host mailbox */
4915 psli
->sli_flag
|= LPFC_SLI_ACTIVE
;
4923 /* Set up reference to mailbox command */
4924 psli
->mbox_active
= pmbox
;
4925 /* Interrupt board to do it */
4926 writel(CA_MBATT
, phba
->CAregaddr
);
4927 readl(phba
->CAregaddr
); /* flush */
4928 /* Don't wait for it to finish, just return */
4932 /* Set up null reference to mailbox command */
4933 psli
->mbox_active
= NULL
;
4934 /* Interrupt board to do it */
4935 writel(CA_MBATT
, phba
->CAregaddr
);
4936 readl(phba
->CAregaddr
); /* flush */
4938 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
4939 /* First read mbox status word */
4940 word0
= *((uint32_t *)phba
->mbox
);
4941 word0
= le32_to_cpu(word0
);
4943 /* First read mbox status word */
4944 word0
= readl(phba
->MBslimaddr
);
4947 /* Read the HBA Host Attention Register */
4948 ha_copy
= readl(phba
->HAregaddr
);
4949 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
,
4953 /* Wait for command to complete */
4954 while (((word0
& OWN_CHIP
) == OWN_CHIP
) ||
4955 (!(ha_copy
& HA_MBATT
) &&
4956 (phba
->link_state
> LPFC_WARM_START
))) {
4957 if (time_after(jiffies
, timeout
)) {
4958 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
4959 spin_unlock_irqrestore(&phba
->hbalock
,
4961 goto out_not_finished
;
4964 /* Check if we took a mbox interrupt while we were
4966 if (((word0
& OWN_CHIP
) != OWN_CHIP
)
4967 && (evtctr
!= psli
->slistat
.mbox_event
))
4971 spin_unlock_irqrestore(&phba
->hbalock
,
4974 spin_lock_irqsave(&phba
->hbalock
, drvr_flag
);
4977 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
4978 /* First copy command data */
4979 word0
= *((uint32_t *)phba
->mbox
);
4980 word0
= le32_to_cpu(word0
);
4981 if (mb
->mbxCommand
== MBX_CONFIG_PORT
) {
4984 /* Check real SLIM for any errors */
4985 slimword0
= readl(phba
->MBslimaddr
);
4986 slimmb
= (MAILBOX_t
*) & slimword0
;
4987 if (((slimword0
& OWN_CHIP
) != OWN_CHIP
)
4988 && slimmb
->mbxStatus
) {
4995 /* First copy command data */
4996 word0
= readl(phba
->MBslimaddr
);
4998 /* Read the HBA Host Attention Register */
4999 ha_copy
= readl(phba
->HAregaddr
);
5002 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
5003 /* copy results back to user */
5004 lpfc_sli_pcimem_bcopy(phba
->mbox
, mb
, MAILBOX_CMD_SIZE
);
5006 /* First copy command data */
5007 lpfc_memcpy_from_slim(mb
, phba
->MBslimaddr
,
5009 if ((mb
->mbxCommand
== MBX_DUMP_MEMORY
) &&
5011 lpfc_memcpy_from_slim((void *)pmbox
->context2
,
5012 phba
->MBslimaddr
+ DMP_RSP_OFFSET
,
5013 mb
->un
.varDmp
.word_cnt
);
5017 writel(HA_MBATT
, phba
->HAregaddr
);
5018 readl(phba
->HAregaddr
); /* flush */
5020 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
5021 status
= mb
->mbxStatus
;
5024 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
5028 if (processing_queue
) {
5029 pmbox
->u
.mb
.mbxStatus
= MBX_NOT_FINISHED
;
5030 lpfc_mbox_cmpl_put(phba
, pmbox
);
5032 return MBX_NOT_FINISHED
;
5036 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
5037 * @phba: Pointer to HBA context object.
5039 * The function blocks the posting of SLI4 asynchronous mailbox commands from
5040 * the driver internal pending mailbox queue. It will then try to wait out the
5041 * possible outstanding mailbox command before return.
5044 * 0 - the outstanding mailbox command completed; otherwise, the wait for
5045 * the outstanding mailbox command timed out.
5048 lpfc_sli4_async_mbox_block(struct lpfc_hba
*phba
)
5050 struct lpfc_sli
*psli
= &phba
->sli
;
5051 uint8_t actcmd
= MBX_HEARTBEAT
;
5053 unsigned long timeout
;
5055 /* Mark the asynchronous mailbox command posting as blocked */
5056 spin_lock_irq(&phba
->hbalock
);
5057 psli
->sli_flag
|= LPFC_SLI_ASYNC_MBX_BLK
;
5058 if (phba
->sli
.mbox_active
)
5059 actcmd
= phba
->sli
.mbox_active
->u
.mb
.mbxCommand
;
5060 spin_unlock_irq(&phba
->hbalock
);
5061 /* Determine how long we might wait for the active mailbox
5062 * command to be gracefully completed by firmware.
5064 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
, actcmd
) * 1000) +
5066 /* Wait for the outstnading mailbox command to complete */
5067 while (phba
->sli
.mbox_active
) {
5068 /* Check active mailbox complete status every 2ms */
5070 if (time_after(jiffies
, timeout
)) {
5071 /* Timeout, marked the outstanding cmd not complete */
5077 /* Can not cleanly block async mailbox command, fails it */
5079 spin_lock_irq(&phba
->hbalock
);
5080 psli
->sli_flag
&= ~LPFC_SLI_ASYNC_MBX_BLK
;
5081 spin_unlock_irq(&phba
->hbalock
);
5087 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
5088 * @phba: Pointer to HBA context object.
5090 * The function unblocks and resume posting of SLI4 asynchronous mailbox
5091 * commands from the driver internal pending mailbox queue. It makes sure
5092 * that there is no outstanding mailbox command before resuming posting
5093 * asynchronous mailbox commands. If, for any reason, there is outstanding
5094 * mailbox command, it will try to wait it out before resuming asynchronous
5095 * mailbox command posting.
5098 lpfc_sli4_async_mbox_unblock(struct lpfc_hba
*phba
)
5100 struct lpfc_sli
*psli
= &phba
->sli
;
5102 spin_lock_irq(&phba
->hbalock
);
5103 if (!(psli
->sli_flag
& LPFC_SLI_ASYNC_MBX_BLK
)) {
5104 /* Asynchronous mailbox posting is not blocked, do nothing */
5105 spin_unlock_irq(&phba
->hbalock
);
5109 /* Outstanding synchronous mailbox command is guaranteed to be done,
5110 * successful or timeout, after timing-out the outstanding mailbox
5111 * command shall always be removed, so just unblock posting async
5112 * mailbox command and resume
5114 psli
->sli_flag
&= ~LPFC_SLI_ASYNC_MBX_BLK
;
5115 spin_unlock_irq(&phba
->hbalock
);
5117 /* wake up worker thread to post asynchronlous mailbox command */
5118 lpfc_worker_wake_up(phba
);
5122 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
5123 * @phba: Pointer to HBA context object.
5124 * @mboxq: Pointer to mailbox object.
5126 * The function posts a mailbox to the port. The mailbox is expected
5127 * to be comletely filled in and ready for the port to operate on it.
5128 * This routine executes a synchronous completion operation on the
5129 * mailbox by polling for its completion.
5131 * The caller must not be holding any locks when calling this routine.
5134 * MBX_SUCCESS - mailbox posted successfully
5135 * Any of the MBX error values.
5138 lpfc_sli4_post_sync_mbox(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
5140 int rc
= MBX_SUCCESS
;
5141 unsigned long iflag
;
5143 uint32_t mcqe_status
;
5145 unsigned long timeout
;
5146 struct lpfc_sli
*psli
= &phba
->sli
;
5147 struct lpfc_mqe
*mb
= &mboxq
->u
.mqe
;
5148 struct lpfc_bmbx_create
*mbox_rgn
;
5149 struct dma_address
*dma_address
;
5150 struct lpfc_register bmbx_reg
;
5153 * Only one mailbox can be active to the bootstrap mailbox region
5154 * at a time and there is no queueing provided.
5156 spin_lock_irqsave(&phba
->hbalock
, iflag
);
5157 if (psli
->sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
5158 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
5159 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5160 "(%d):2532 Mailbox command x%x (x%x) "
5161 "cannot issue Data: x%x x%x\n",
5162 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5163 mboxq
->u
.mb
.mbxCommand
,
5164 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5165 psli
->sli_flag
, MBX_POLL
);
5166 return MBXERR_ERROR
;
5168 /* The server grabs the token and owns it until release */
5169 psli
->sli_flag
|= LPFC_SLI_MBOX_ACTIVE
;
5170 phba
->sli
.mbox_active
= mboxq
;
5171 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
5174 * Initialize the bootstrap memory region to avoid stale data areas
5175 * in the mailbox post. Then copy the caller's mailbox contents to
5176 * the bmbx mailbox region.
5178 mbx_cmnd
= bf_get(lpfc_mqe_command
, mb
);
5179 memset(phba
->sli4_hba
.bmbx
.avirt
, 0, sizeof(struct lpfc_bmbx_create
));
5180 lpfc_sli_pcimem_bcopy(mb
, phba
->sli4_hba
.bmbx
.avirt
,
5181 sizeof(struct lpfc_mqe
));
5183 /* Post the high mailbox dma address to the port and wait for ready. */
5184 dma_address
= &phba
->sli4_hba
.bmbx
.dma_address
;
5185 writel(dma_address
->addr_hi
, phba
->sli4_hba
.BMBXregaddr
);
5187 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
, mbx_cmnd
)
5190 bmbx_reg
.word0
= readl(phba
->sli4_hba
.BMBXregaddr
);
5191 db_ready
= bf_get(lpfc_bmbx_rdy
, &bmbx_reg
);
5195 if (time_after(jiffies
, timeout
)) {
5199 } while (!db_ready
);
5201 /* Post the low mailbox dma address to the port. */
5202 writel(dma_address
->addr_lo
, phba
->sli4_hba
.BMBXregaddr
);
5203 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
, mbx_cmnd
)
5206 bmbx_reg
.word0
= readl(phba
->sli4_hba
.BMBXregaddr
);
5207 db_ready
= bf_get(lpfc_bmbx_rdy
, &bmbx_reg
);
5211 if (time_after(jiffies
, timeout
)) {
5215 } while (!db_ready
);
5218 * Read the CQ to ensure the mailbox has completed.
5219 * If so, update the mailbox status so that the upper layers
5220 * can complete the request normally.
5222 lpfc_sli_pcimem_bcopy(phba
->sli4_hba
.bmbx
.avirt
, mb
,
5223 sizeof(struct lpfc_mqe
));
5224 mbox_rgn
= (struct lpfc_bmbx_create
*) phba
->sli4_hba
.bmbx
.avirt
;
5225 lpfc_sli_pcimem_bcopy(&mbox_rgn
->mcqe
, &mboxq
->mcqe
,
5226 sizeof(struct lpfc_mcqe
));
5227 mcqe_status
= bf_get(lpfc_mcqe_status
, &mbox_rgn
->mcqe
);
5229 /* Prefix the mailbox status with range x4000 to note SLI4 status. */
5230 if (mcqe_status
!= MB_CQE_STATUS_SUCCESS
) {
5231 bf_set(lpfc_mqe_status
, mb
, LPFC_MBX_ERROR_RANGE
| mcqe_status
);
5235 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
5236 "(%d):0356 Mailbox cmd x%x (x%x) Status x%x "
5237 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
5238 " x%x x%x CQ: x%x x%x x%x x%x\n",
5239 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5240 mbx_cmnd
, lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5241 bf_get(lpfc_mqe_status
, mb
),
5242 mb
->un
.mb_words
[0], mb
->un
.mb_words
[1],
5243 mb
->un
.mb_words
[2], mb
->un
.mb_words
[3],
5244 mb
->un
.mb_words
[4], mb
->un
.mb_words
[5],
5245 mb
->un
.mb_words
[6], mb
->un
.mb_words
[7],
5246 mb
->un
.mb_words
[8], mb
->un
.mb_words
[9],
5247 mb
->un
.mb_words
[10], mb
->un
.mb_words
[11],
5248 mb
->un
.mb_words
[12], mboxq
->mcqe
.word0
,
5249 mboxq
->mcqe
.mcqe_tag0
, mboxq
->mcqe
.mcqe_tag1
,
5250 mboxq
->mcqe
.trailer
);
5252 /* We are holding the token, no needed for lock when release */
5253 spin_lock_irqsave(&phba
->hbalock
, iflag
);
5254 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
5255 phba
->sli
.mbox_active
= NULL
;
5256 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
5261 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
5262 * @phba: Pointer to HBA context object.
5263 * @pmbox: Pointer to mailbox object.
5264 * @flag: Flag indicating how the mailbox need to be processed.
5266 * This function is called by discovery code and HBA management code to submit
5267 * a mailbox command to firmware with SLI-4 interface spec.
5269 * Return codes the caller owns the mailbox command after the return of the
5273 lpfc_sli_issue_mbox_s4(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
,
5276 struct lpfc_sli
*psli
= &phba
->sli
;
5277 unsigned long iflags
;
5280 rc
= lpfc_mbox_dev_check(phba
);
5282 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5283 "(%d):2544 Mailbox command x%x (x%x) "
5284 "cannot issue Data: x%x x%x\n",
5285 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5286 mboxq
->u
.mb
.mbxCommand
,
5287 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5288 psli
->sli_flag
, flag
);
5289 goto out_not_finished
;
5292 /* Detect polling mode and jump to a handler */
5293 if (!phba
->sli4_hba
.intr_enable
) {
5294 if (flag
== MBX_POLL
)
5295 rc
= lpfc_sli4_post_sync_mbox(phba
, mboxq
);
5298 if (rc
!= MBX_SUCCESS
)
5299 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5300 "(%d):2541 Mailbox command x%x "
5301 "(x%x) cannot issue Data: x%x x%x\n",
5302 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5303 mboxq
->u
.mb
.mbxCommand
,
5304 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5305 psli
->sli_flag
, flag
);
5307 } else if (flag
== MBX_POLL
) {
5308 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_SLI
,
5309 "(%d):2542 Try to issue mailbox command "
5310 "x%x (x%x) synchronously ahead of async"
5311 "mailbox command queue: x%x x%x\n",
5312 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5313 mboxq
->u
.mb
.mbxCommand
,
5314 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5315 psli
->sli_flag
, flag
);
5316 /* Try to block the asynchronous mailbox posting */
5317 rc
= lpfc_sli4_async_mbox_block(phba
);
5319 /* Successfully blocked, now issue sync mbox cmd */
5320 rc
= lpfc_sli4_post_sync_mbox(phba
, mboxq
);
5321 if (rc
!= MBX_SUCCESS
)
5322 lpfc_printf_log(phba
, KERN_ERR
,
5324 "(%d):2597 Mailbox command "
5325 "x%x (x%x) cannot issue "
5328 mboxq
->vport
->vpi
: 0,
5329 mboxq
->u
.mb
.mbxCommand
,
5330 lpfc_sli4_mbox_opcode_get(phba
,
5332 psli
->sli_flag
, flag
);
5333 /* Unblock the async mailbox posting afterward */
5334 lpfc_sli4_async_mbox_unblock(phba
);
5339 /* Now, interrupt mode asynchrous mailbox command */
5340 rc
= lpfc_mbox_cmd_check(phba
, mboxq
);
5342 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5343 "(%d):2543 Mailbox command x%x (x%x) "
5344 "cannot issue Data: x%x x%x\n",
5345 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5346 mboxq
->u
.mb
.mbxCommand
,
5347 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5348 psli
->sli_flag
, flag
);
5349 goto out_not_finished
;
5352 /* Put the mailbox command to the driver internal FIFO */
5353 psli
->slistat
.mbox_busy
++;
5354 spin_lock_irqsave(&phba
->hbalock
, iflags
);
5355 lpfc_mbox_put(phba
, mboxq
);
5356 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5357 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
5358 "(%d):0354 Mbox cmd issue - Enqueue Data: "
5359 "x%x (x%x) x%x x%x x%x\n",
5360 mboxq
->vport
? mboxq
->vport
->vpi
: 0xffffff,
5361 bf_get(lpfc_mqe_command
, &mboxq
->u
.mqe
),
5362 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5363 phba
->pport
->port_state
,
5364 psli
->sli_flag
, MBX_NOWAIT
);
5365 /* Wake up worker thread to transport mailbox command from head */
5366 lpfc_worker_wake_up(phba
);
5371 return MBX_NOT_FINISHED
;
5375 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
5376 * @phba: Pointer to HBA context object.
5378 * This function is called by worker thread to send a mailbox command to
5379 * SLI4 HBA firmware.
5383 lpfc_sli4_post_async_mbox(struct lpfc_hba
*phba
)
5385 struct lpfc_sli
*psli
= &phba
->sli
;
5386 LPFC_MBOXQ_t
*mboxq
;
5387 int rc
= MBX_SUCCESS
;
5388 unsigned long iflags
;
5389 struct lpfc_mqe
*mqe
;
5392 /* Check interrupt mode before post async mailbox command */
5393 if (unlikely(!phba
->sli4_hba
.intr_enable
))
5394 return MBX_NOT_FINISHED
;
5396 /* Check for mailbox command service token */
5397 spin_lock_irqsave(&phba
->hbalock
, iflags
);
5398 if (unlikely(psli
->sli_flag
& LPFC_SLI_ASYNC_MBX_BLK
)) {
5399 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5400 return MBX_NOT_FINISHED
;
5402 if (psli
->sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
5403 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5404 return MBX_NOT_FINISHED
;
5406 if (unlikely(phba
->sli
.mbox_active
)) {
5407 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5408 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5409 "0384 There is pending active mailbox cmd\n");
5410 return MBX_NOT_FINISHED
;
5412 /* Take the mailbox command service token */
5413 psli
->sli_flag
|= LPFC_SLI_MBOX_ACTIVE
;
5415 /* Get the next mailbox command from head of queue */
5416 mboxq
= lpfc_mbox_get(phba
);
5418 /* If no more mailbox command waiting for post, we're done */
5420 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
5421 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5424 phba
->sli
.mbox_active
= mboxq
;
5425 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5427 /* Check device readiness for posting mailbox command */
5428 rc
= lpfc_mbox_dev_check(phba
);
5430 /* Driver clean routine will clean up pending mailbox */
5431 goto out_not_finished
;
5433 /* Prepare the mbox command to be posted */
5434 mqe
= &mboxq
->u
.mqe
;
5435 mbx_cmnd
= bf_get(lpfc_mqe_command
, mqe
);
5437 /* Start timer for the mbox_tmo and log some mailbox post messages */
5438 mod_timer(&psli
->mbox_tmo
, (jiffies
+
5439 (HZ
* lpfc_mbox_tmo_val(phba
, mbx_cmnd
))));
5441 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
5442 "(%d):0355 Mailbox cmd x%x (x%x) issue Data: "
5444 mboxq
->vport
? mboxq
->vport
->vpi
: 0, mbx_cmnd
,
5445 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5446 phba
->pport
->port_state
, psli
->sli_flag
);
5448 if (mbx_cmnd
!= MBX_HEARTBEAT
) {
5450 lpfc_debugfs_disc_trc(mboxq
->vport
,
5451 LPFC_DISC_TRC_MBOX_VPORT
,
5452 "MBOX Send vport: cmd:x%x mb:x%x x%x",
5453 mbx_cmnd
, mqe
->un
.mb_words
[0],
5454 mqe
->un
.mb_words
[1]);
5456 lpfc_debugfs_disc_trc(phba
->pport
,
5458 "MBOX Send: cmd:x%x mb:x%x x%x",
5459 mbx_cmnd
, mqe
->un
.mb_words
[0],
5460 mqe
->un
.mb_words
[1]);
5463 psli
->slistat
.mbox_cmd
++;
5465 /* Post the mailbox command to the port */
5466 rc
= lpfc_sli4_mq_put(phba
->sli4_hba
.mbx_wq
, mqe
);
5467 if (rc
!= MBX_SUCCESS
) {
5468 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5469 "(%d):2533 Mailbox command x%x (x%x) "
5470 "cannot issue Data: x%x x%x\n",
5471 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5472 mboxq
->u
.mb
.mbxCommand
,
5473 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5474 psli
->sli_flag
, MBX_NOWAIT
);
5475 goto out_not_finished
;
5481 spin_lock_irqsave(&phba
->hbalock
, iflags
);
5482 mboxq
->u
.mb
.mbxStatus
= MBX_NOT_FINISHED
;
5483 __lpfc_mbox_cmpl_put(phba
, mboxq
);
5484 /* Release the token */
5485 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
5486 phba
->sli
.mbox_active
= NULL
;
5487 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5489 return MBX_NOT_FINISHED
;
5493 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
5494 * @phba: Pointer to HBA context object.
5495 * @pmbox: Pointer to mailbox object.
5496 * @flag: Flag indicating how the mailbox need to be processed.
5498 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
5499 * the API jump table function pointer from the lpfc_hba struct.
5501 * Return codes the caller owns the mailbox command after the return of the
5505 lpfc_sli_issue_mbox(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmbox
, uint32_t flag
)
5507 return phba
->lpfc_sli_issue_mbox(phba
, pmbox
, flag
);
5511 * lpfc_mbox_api_table_setup - Set up mbox api fucntion jump table
5512 * @phba: The hba struct for which this call is being executed.
5513 * @dev_grp: The HBA PCI-Device group number.
5515 * This routine sets up the mbox interface API function jump table in @phba
5517 * Returns: 0 - success, -ENODEV - failure.
5520 lpfc_mbox_api_table_setup(struct lpfc_hba
*phba
, uint8_t dev_grp
)
5524 case LPFC_PCI_DEV_LP
:
5525 phba
->lpfc_sli_issue_mbox
= lpfc_sli_issue_mbox_s3
;
5526 phba
->lpfc_sli_handle_slow_ring_event
=
5527 lpfc_sli_handle_slow_ring_event_s3
;
5528 phba
->lpfc_sli_hbq_to_firmware
= lpfc_sli_hbq_to_firmware_s3
;
5529 phba
->lpfc_sli_brdrestart
= lpfc_sli_brdrestart_s3
;
5530 phba
->lpfc_sli_brdready
= lpfc_sli_brdready_s3
;
5532 case LPFC_PCI_DEV_OC
:
5533 phba
->lpfc_sli_issue_mbox
= lpfc_sli_issue_mbox_s4
;
5534 phba
->lpfc_sli_handle_slow_ring_event
=
5535 lpfc_sli_handle_slow_ring_event_s4
;
5536 phba
->lpfc_sli_hbq_to_firmware
= lpfc_sli_hbq_to_firmware_s4
;
5537 phba
->lpfc_sli_brdrestart
= lpfc_sli_brdrestart_s4
;
5538 phba
->lpfc_sli_brdready
= lpfc_sli_brdready_s4
;
5541 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5542 "1420 Invalid HBA PCI-device group: 0x%x\n",
5551 * __lpfc_sli_ringtx_put - Add an iocb to the txq
5552 * @phba: Pointer to HBA context object.
5553 * @pring: Pointer to driver SLI ring object.
5554 * @piocb: Pointer to address of newly added command iocb.
5556 * This function is called with hbalock held to add a command
5557 * iocb to the txq when SLI layer cannot submit the command iocb
5561 __lpfc_sli_ringtx_put(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
5562 struct lpfc_iocbq
*piocb
)
5564 /* Insert the caller's iocb in the txq tail for later processing. */
5565 list_add_tail(&piocb
->list
, &pring
->txq
);
5570 * lpfc_sli_next_iocb - Get the next iocb in the txq
5571 * @phba: Pointer to HBA context object.
5572 * @pring: Pointer to driver SLI ring object.
5573 * @piocb: Pointer to address of newly added command iocb.
5575 * This function is called with hbalock held before a new
5576 * iocb is submitted to the firmware. This function checks
5577 * txq to flush the iocbs in txq to Firmware before
5578 * submitting new iocbs to the Firmware.
5579 * If there are iocbs in the txq which need to be submitted
5580 * to firmware, lpfc_sli_next_iocb returns the first element
5581 * of the txq after dequeuing it from txq.
5582 * If there is no iocb in the txq then the function will return
5583 * *piocb and *piocb is set to NULL. Caller needs to check
5584 * *piocb to find if there are more commands in the txq.
5586 static struct lpfc_iocbq
*
5587 lpfc_sli_next_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
5588 struct lpfc_iocbq
**piocb
)
5590 struct lpfc_iocbq
* nextiocb
;
5592 nextiocb
= lpfc_sli_ringtx_get(phba
, pring
);
5602 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
5603 * @phba: Pointer to HBA context object.
5604 * @ring_number: SLI ring number to issue iocb on.
5605 * @piocb: Pointer to command iocb.
5606 * @flag: Flag indicating if this command can be put into txq.
5608 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
5609 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
5610 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
5611 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
5612 * this function allows only iocbs for posting buffers. This function finds
5613 * next available slot in the command ring and posts the command to the
5614 * available slot and writes the port attention register to request HBA start
5615 * processing new iocb. If there is no slot available in the ring and
5616 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
5617 * the function returns IOCB_BUSY.
5619 * This function is called with hbalock held. The function will return success
5620 * after it successfully submit the iocb to firmware or after adding to the
5624 __lpfc_sli_issue_iocb_s3(struct lpfc_hba
*phba
, uint32_t ring_number
,
5625 struct lpfc_iocbq
*piocb
, uint32_t flag
)
5627 struct lpfc_iocbq
*nextiocb
;
5629 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[ring_number
];
5631 if (piocb
->iocb_cmpl
&& (!piocb
->vport
) &&
5632 (piocb
->iocb
.ulpCommand
!= CMD_ABORT_XRI_CN
) &&
5633 (piocb
->iocb
.ulpCommand
!= CMD_CLOSE_XRI_CN
)) {
5634 lpfc_printf_log(phba
, KERN_ERR
,
5635 LOG_SLI
| LOG_VPORT
,
5636 "1807 IOCB x%x failed. No vport\n",
5637 piocb
->iocb
.ulpCommand
);
5643 /* If the PCI channel is in offline state, do not post iocbs. */
5644 if (unlikely(pci_channel_offline(phba
->pcidev
)))
5647 /* If HBA has a deferred error attention, fail the iocb. */
5648 if (unlikely(phba
->hba_flag
& DEFER_ERATT
))
5652 * We should never get an IOCB if we are in a < LINK_DOWN state
5654 if (unlikely(phba
->link_state
< LPFC_LINK_DOWN
))
5658 * Check to see if we are blocking IOCB processing because of a
5659 * outstanding event.
5661 if (unlikely(pring
->flag
& LPFC_STOP_IOCB_EVENT
))
5664 if (unlikely(phba
->link_state
== LPFC_LINK_DOWN
)) {
5666 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
5667 * can be issued if the link is not up.
5669 switch (piocb
->iocb
.ulpCommand
) {
5670 case CMD_GEN_REQUEST64_CR
:
5671 case CMD_GEN_REQUEST64_CX
:
5672 if (!(phba
->sli
.sli_flag
& LPFC_MENLO_MAINT
) ||
5673 (piocb
->iocb
.un
.genreq64
.w5
.hcsw
.Rctl
!=
5674 FC_RCTL_DD_UNSOL_CMD
) ||
5675 (piocb
->iocb
.un
.genreq64
.w5
.hcsw
.Type
!=
5676 MENLO_TRANSPORT_TYPE
))
5680 case CMD_QUE_RING_BUF_CN
:
5681 case CMD_QUE_RING_BUF64_CN
:
5683 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
5684 * completion, iocb_cmpl MUST be 0.
5686 if (piocb
->iocb_cmpl
)
5687 piocb
->iocb_cmpl
= NULL
;
5689 case CMD_CREATE_XRI_CR
:
5690 case CMD_CLOSE_XRI_CN
:
5691 case CMD_CLOSE_XRI_CX
:
5698 * For FCP commands, we must be in a state where we can process link
5701 } else if (unlikely(pring
->ringno
== phba
->sli
.fcp_ring
&&
5702 !(phba
->sli
.sli_flag
& LPFC_PROCESS_LA
))) {
5706 while ((iocb
= lpfc_sli_next_iocb_slot(phba
, pring
)) &&
5707 (nextiocb
= lpfc_sli_next_iocb(phba
, pring
, &piocb
)))
5708 lpfc_sli_submit_iocb(phba
, pring
, iocb
, nextiocb
);
5711 lpfc_sli_update_ring(phba
, pring
);
5713 lpfc_sli_update_full_ring(phba
, pring
);
5716 return IOCB_SUCCESS
;
5721 pring
->stats
.iocb_cmd_delay
++;
5725 if (!(flag
& SLI_IOCB_RET_IOCB
)) {
5726 __lpfc_sli_ringtx_put(phba
, pring
, piocb
);
5727 return IOCB_SUCCESS
;
5734 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
5735 * @phba: Pointer to HBA context object.
5736 * @piocb: Pointer to command iocb.
5737 * @sglq: Pointer to the scatter gather queue object.
5739 * This routine converts the bpl or bde that is in the IOCB
5740 * to a sgl list for the sli4 hardware. The physical address
5741 * of the bpl/bde is converted back to a virtual address.
5742 * If the IOCB contains a BPL then the list of BDE's is
5743 * converted to sli4_sge's. If the IOCB contains a single
5744 * BDE then it is converted to a single sli_sge.
5745 * The IOCB is still in cpu endianess so the contents of
5746 * the bpl can be used without byte swapping.
5748 * Returns valid XRI = Success, NO_XRI = Failure.
5751 lpfc_sli4_bpl2sgl(struct lpfc_hba
*phba
, struct lpfc_iocbq
*piocbq
,
5752 struct lpfc_sglq
*sglq
)
5754 uint16_t xritag
= NO_XRI
;
5755 struct ulp_bde64
*bpl
= NULL
;
5756 struct ulp_bde64 bde
;
5757 struct sli4_sge
*sgl
= NULL
;
5762 if (!piocbq
|| !sglq
)
5765 sgl
= (struct sli4_sge
*)sglq
->sgl
;
5766 icmd
= &piocbq
->iocb
;
5767 if (icmd
->un
.genreq64
.bdl
.bdeFlags
== BUFF_TYPE_BLP_64
) {
5768 numBdes
= icmd
->un
.genreq64
.bdl
.bdeSize
/
5769 sizeof(struct ulp_bde64
);
5770 /* The addrHigh and addrLow fields within the IOCB
5771 * have not been byteswapped yet so there is no
5772 * need to swap them back.
5774 bpl
= (struct ulp_bde64
*)
5775 ((struct lpfc_dmabuf
*)piocbq
->context3
)->virt
;
5780 for (i
= 0; i
< numBdes
; i
++) {
5781 /* Should already be byte swapped. */
5782 sgl
->addr_hi
= bpl
->addrHigh
;
5783 sgl
->addr_lo
= bpl
->addrLow
;
5785 if ((i
+1) == numBdes
)
5786 bf_set(lpfc_sli4_sge_last
, sgl
, 1);
5788 bf_set(lpfc_sli4_sge_last
, sgl
, 0);
5789 sgl
->word2
= cpu_to_le32(sgl
->word2
);
5790 /* swap the size field back to the cpu so we
5791 * can assign it to the sgl.
5793 bde
.tus
.w
= le32_to_cpu(bpl
->tus
.w
);
5794 sgl
->sge_len
= cpu_to_le32(bde
.tus
.f
.bdeSize
);
5798 } else if (icmd
->un
.genreq64
.bdl
.bdeFlags
== BUFF_TYPE_BDE_64
) {
5799 /* The addrHigh and addrLow fields of the BDE have not
5800 * been byteswapped yet so they need to be swapped
5801 * before putting them in the sgl.
5804 cpu_to_le32(icmd
->un
.genreq64
.bdl
.addrHigh
);
5806 cpu_to_le32(icmd
->un
.genreq64
.bdl
.addrLow
);
5807 bf_set(lpfc_sli4_sge_last
, sgl
, 1);
5808 sgl
->word2
= cpu_to_le32(sgl
->word2
);
5810 cpu_to_le32(icmd
->un
.genreq64
.bdl
.bdeSize
);
5812 return sglq
->sli4_xritag
;
5816 * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution
5817 * @phba: Pointer to HBA context object.
5819 * This routine performs a round robin SCSI command to SLI4 FCP WQ index
5820 * distribution. This is called by __lpfc_sli_issue_iocb_s4() with the hbalock
5823 * Return: index into SLI4 fast-path FCP queue index.
5826 lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba
*phba
)
5829 if (phba
->fcp_qidx
>= phba
->cfg_fcp_wq_count
)
5832 return phba
->fcp_qidx
;
5836 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
5837 * @phba: Pointer to HBA context object.
5838 * @piocb: Pointer to command iocb.
5839 * @wqe: Pointer to the work queue entry.
5841 * This routine converts the iocb command to its Work Queue Entry
5842 * equivalent. The wqe pointer should not have any fields set when
5843 * this routine is called because it will memcpy over them.
5844 * This routine does not set the CQ_ID or the WQEC bits in the
5847 * Returns: 0 = Success, IOCB_ERROR = Failure.
5850 lpfc_sli4_iocb2wqe(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
,
5851 union lpfc_wqe
*wqe
)
5853 uint32_t xmit_len
= 0, total_len
= 0;
5857 uint8_t command_type
= ELS_COMMAND_NON_FIP
;
5860 struct ulp_bde64
*bpl
= NULL
;
5861 uint32_t els_id
= ELS_ID_DEFAULT
;
5863 struct ulp_bde64 bde
;
5865 fip
= phba
->hba_flag
& HBA_FIP_SUPPORT
;
5866 /* The fcp commands will set command type */
5867 if (iocbq
->iocb_flag
& LPFC_IO_FCP
)
5868 command_type
= FCP_COMMAND
;
5869 else if (fip
&& (iocbq
->iocb_flag
& LPFC_FIP_ELS_ID_MASK
))
5870 command_type
= ELS_COMMAND_FIP
;
5872 command_type
= ELS_COMMAND_NON_FIP
;
5874 /* Some of the fields are in the right position already */
5875 memcpy(wqe
, &iocbq
->iocb
, sizeof(union lpfc_wqe
));
5876 abort_tag
= (uint32_t) iocbq
->iotag
;
5877 xritag
= iocbq
->sli4_xritag
;
5878 wqe
->words
[7] = 0; /* The ct field has moved so reset */
5879 /* words0-2 bpl convert bde */
5880 if (iocbq
->iocb
.un
.genreq64
.bdl
.bdeFlags
== BUFF_TYPE_BLP_64
) {
5881 numBdes
= iocbq
->iocb
.un
.genreq64
.bdl
.bdeSize
/
5882 sizeof(struct ulp_bde64
);
5883 bpl
= (struct ulp_bde64
*)
5884 ((struct lpfc_dmabuf
*)iocbq
->context3
)->virt
;
5888 /* Should already be byte swapped. */
5889 wqe
->generic
.bde
.addrHigh
= le32_to_cpu(bpl
->addrHigh
);
5890 wqe
->generic
.bde
.addrLow
= le32_to_cpu(bpl
->addrLow
);
5891 /* swap the size field back to the cpu so we
5892 * can assign it to the sgl.
5894 wqe
->generic
.bde
.tus
.w
= le32_to_cpu(bpl
->tus
.w
);
5895 xmit_len
= wqe
->generic
.bde
.tus
.f
.bdeSize
;
5897 for (i
= 0; i
< numBdes
; i
++) {
5898 bde
.tus
.w
= le32_to_cpu(bpl
[i
].tus
.w
);
5899 total_len
+= bde
.tus
.f
.bdeSize
;
5902 xmit_len
= iocbq
->iocb
.un
.fcpi64
.bdl
.bdeSize
;
5904 iocbq
->iocb
.ulpIoTag
= iocbq
->iotag
;
5905 cmnd
= iocbq
->iocb
.ulpCommand
;
5907 switch (iocbq
->iocb
.ulpCommand
) {
5908 case CMD_ELS_REQUEST64_CR
:
5909 if (!iocbq
->iocb
.ulpLe
) {
5910 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
5911 "2007 Only Limited Edition cmd Format"
5912 " supported 0x%x\n",
5913 iocbq
->iocb
.ulpCommand
);
5916 wqe
->els_req
.payload_len
= xmit_len
;
5917 /* Els_reguest64 has a TMO */
5918 bf_set(wqe_tmo
, &wqe
->els_req
.wqe_com
,
5919 iocbq
->iocb
.ulpTimeout
);
5920 /* Need a VF for word 4 set the vf bit*/
5921 bf_set(els_req64_vf
, &wqe
->els_req
, 0);
5922 /* And a VFID for word 12 */
5923 bf_set(els_req64_vfid
, &wqe
->els_req
, 0);
5925 * Set ct field to 3, indicates that the context_tag field
5926 * contains the FCFI and remote N_Port_ID is
5930 ct
= ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
);
5931 bf_set(lpfc_wqe_gen_context
, &wqe
->generic
,
5932 iocbq
->iocb
.ulpContext
);
5934 bf_set(lpfc_wqe_gen_ct
, &wqe
->generic
, ct
);
5935 bf_set(lpfc_wqe_gen_pu
, &wqe
->generic
, 0);
5936 /* CCP CCPE PV PRI in word10 were set in the memcpy */
5938 if (command_type
== ELS_COMMAND_FIP
) {
5939 els_id
= ((iocbq
->iocb_flag
& LPFC_FIP_ELS_ID_MASK
)
5940 >> LPFC_FIP_ELS_ID_SHIFT
);
5942 bf_set(lpfc_wqe_gen_els_id
, &wqe
->generic
, els_id
);
5945 case CMD_XMIT_SEQUENCE64_CX
:
5946 bf_set(lpfc_wqe_gen_context
, &wqe
->generic
,
5947 iocbq
->iocb
.un
.ulpWord
[3]);
5948 wqe
->generic
.word3
= 0;
5949 bf_set(wqe_rcvoxid
, &wqe
->generic
, iocbq
->iocb
.ulpContext
);
5950 /* The entire sequence is transmitted for this IOCB */
5951 xmit_len
= total_len
;
5952 cmnd
= CMD_XMIT_SEQUENCE64_CR
;
5953 case CMD_XMIT_SEQUENCE64_CR
:
5954 /* word3 iocb=io_tag32 wqe=payload_offset */
5955 /* payload offset used for multilpe outstanding
5956 * sequences on the same exchange
5959 /* word4 relative_offset memcpy */
5960 /* word5 r_ctl/df_ctl memcpy */
5961 bf_set(lpfc_wqe_gen_pu
, &wqe
->generic
, 0);
5962 wqe
->xmit_sequence
.xmit_len
= xmit_len
;
5963 command_type
= OTHER_COMMAND
;
5965 case CMD_XMIT_BCAST64_CN
:
5966 /* word3 iocb=iotag32 wqe=payload_len */
5967 wqe
->words
[3] = 0; /* no definition for this in wqe */
5968 /* word4 iocb=rsvd wqe=rsvd */
5969 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
5970 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
5971 bf_set(lpfc_wqe_gen_ct
, &wqe
->generic
,
5972 ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
));
5974 case CMD_FCP_IWRITE64_CR
:
5975 command_type
= FCP_COMMAND_DATA_OUT
;
5976 /* The struct for wqe fcp_iwrite has 3 fields that are somewhat
5978 * word3 is payload_len: byte offset to the sgl entry for the
5980 * word4 is total xfer len, same as the IOCB->ulpParameter.
5981 * word5 is initial xfer len 0 = wait for xfer-ready
5984 /* Always wait for xfer-ready before sending data */
5985 wqe
->fcp_iwrite
.initial_xfer_len
= 0;
5986 /* word 4 (xfer length) should have been set on the memcpy */
5988 /* allow write to fall through to read */
5989 case CMD_FCP_IREAD64_CR
:
5990 /* FCP_CMD is always the 1st sgl entry */
5991 wqe
->fcp_iread
.payload_len
=
5992 xmit_len
+ sizeof(struct fcp_rsp
);
5994 /* word 4 (xfer length) should have been set on the memcpy */
5996 bf_set(lpfc_wqe_gen_erp
, &wqe
->generic
,
5997 iocbq
->iocb
.ulpFCP2Rcvy
);
5998 bf_set(lpfc_wqe_gen_lnk
, &wqe
->generic
, iocbq
->iocb
.ulpXS
);
5999 /* The XC bit and the XS bit are similar. The driver never
6000 * tracked whether or not the exchange was previouslly open.
6001 * XC = Exchange create, 0 is create. 1 is already open.
6002 * XS = link cmd: 1 do not close the exchange after command.
6003 * XS = 0 close exchange when command completes.
6004 * The only time we would not set the XC bit is when the XS bit
6005 * is set and we are sending our 2nd or greater command on
6008 /* Always open the exchange */
6009 bf_set(wqe_xc
, &wqe
->fcp_iread
.wqe_com
, 0);
6011 wqe
->words
[10] &= 0xffff0000; /* zero out ebde count */
6012 bf_set(lpfc_wqe_gen_pu
, &wqe
->generic
, iocbq
->iocb
.ulpPU
);
6014 case CMD_FCP_ICMND64_CR
:
6015 /* Always open the exchange */
6016 bf_set(wqe_xc
, &wqe
->fcp_iread
.wqe_com
, 0);
6019 wqe
->words
[10] &= 0xffff0000; /* zero out ebde count */
6020 bf_set(lpfc_wqe_gen_pu
, &wqe
->generic
, 0);
6022 case CMD_GEN_REQUEST64_CR
:
6023 /* word3 command length is described as byte offset to the
6024 * rsp_data. Would always be 16, sizeof(struct sli4_sge)
6029 wqe
->gen_req
.command_len
= xmit_len
;
6030 /* Word4 parameter copied in the memcpy */
6031 /* Word5 [rctl, type, df_ctl, la] copied in memcpy */
6032 /* word6 context tag copied in memcpy */
6033 if (iocbq
->iocb
.ulpCt_h
|| iocbq
->iocb
.ulpCt_l
) {
6034 ct
= ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
);
6035 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
6036 "2015 Invalid CT %x command 0x%x\n",
6037 ct
, iocbq
->iocb
.ulpCommand
);
6040 bf_set(lpfc_wqe_gen_ct
, &wqe
->generic
, 0);
6041 bf_set(wqe_tmo
, &wqe
->gen_req
.wqe_com
,
6042 iocbq
->iocb
.ulpTimeout
);
6044 bf_set(lpfc_wqe_gen_pu
, &wqe
->generic
, iocbq
->iocb
.ulpPU
);
6045 command_type
= OTHER_COMMAND
;
6047 case CMD_XMIT_ELS_RSP64_CX
:
6048 /* words0-2 BDE memcpy */
6049 /* word3 iocb=iotag32 wqe=rsvd */
6051 /* word4 iocb=did wge=rsvd. */
6053 /* word5 iocb=rsvd wge=did */
6054 bf_set(wqe_els_did
, &wqe
->xmit_els_rsp
.wqe_dest
,
6055 iocbq
->iocb
.un
.elsreq64
.remoteID
);
6057 bf_set(lpfc_wqe_gen_ct
, &wqe
->generic
,
6058 ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
));
6060 bf_set(lpfc_wqe_gen_pu
, &wqe
->generic
, iocbq
->iocb
.ulpPU
);
6061 bf_set(wqe_rcvoxid
, &wqe
->generic
, iocbq
->iocb
.ulpContext
);
6062 if (!iocbq
->iocb
.ulpCt_h
&& iocbq
->iocb
.ulpCt_l
)
6063 bf_set(lpfc_wqe_gen_context
, &wqe
->generic
,
6064 iocbq
->vport
->vpi
+ phba
->vpi_base
);
6065 command_type
= OTHER_COMMAND
;
6067 case CMD_CLOSE_XRI_CN
:
6068 case CMD_ABORT_XRI_CN
:
6069 case CMD_ABORT_XRI_CX
:
6070 /* words 0-2 memcpy should be 0 rserved */
6071 /* port will send abts */
6072 if (iocbq
->iocb
.ulpCommand
== CMD_CLOSE_XRI_CN
)
6074 * The link is down so the fw does not need to send abts
6077 bf_set(abort_cmd_ia
, &wqe
->abort_cmd
, 1);
6079 bf_set(abort_cmd_ia
, &wqe
->abort_cmd
, 0);
6080 bf_set(abort_cmd_criteria
, &wqe
->abort_cmd
, T_XRI_TAG
);
6082 bf_set(lpfc_wqe_gen_ct
, &wqe
->generic
,
6083 ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
));
6084 abort_tag
= iocbq
->iocb
.un
.acxri
.abortIoTag
;
6086 * The abort handler will send us CMD_ABORT_XRI_CN or
6087 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
6089 bf_set(lpfc_wqe_gen_command
, &wqe
->generic
, CMD_ABORT_XRI_CX
);
6090 cmnd
= CMD_ABORT_XRI_CX
;
6091 command_type
= OTHER_COMMAND
;
6094 case CMD_XMIT_BLS_RSP64_CX
:
6095 /* As BLS ABTS-ACC WQE is very different from other WQEs,
6096 * we re-construct this WQE here based on information in
6097 * iocbq from scratch.
6099 memset(wqe
, 0, sizeof(union lpfc_wqe
));
6100 /* OX_ID is invariable to who sent ABTS to CT exchange */
6101 bf_set(xmit_bls_rsp64_oxid
, &wqe
->xmit_bls_rsp
,
6102 bf_get(lpfc_abts_oxid
, &iocbq
->iocb
.un
.bls_acc
));
6103 if (bf_get(lpfc_abts_orig
, &iocbq
->iocb
.un
.bls_acc
) ==
6104 LPFC_ABTS_UNSOL_INT
) {
6105 /* ABTS sent by initiator to CT exchange, the
6106 * RX_ID field will be filled with the newly
6107 * allocated responder XRI.
6109 bf_set(xmit_bls_rsp64_rxid
, &wqe
->xmit_bls_rsp
,
6110 iocbq
->sli4_xritag
);
6112 /* ABTS sent by responder to CT exchange, the
6113 * RX_ID field will be filled with the responder
6116 bf_set(xmit_bls_rsp64_rxid
, &wqe
->xmit_bls_rsp
,
6117 bf_get(lpfc_abts_rxid
, &iocbq
->iocb
.un
.bls_acc
));
6119 bf_set(xmit_bls_rsp64_seqcnthi
, &wqe
->xmit_bls_rsp
, 0xffff);
6120 bf_set(wqe_xmit_bls_pt
, &wqe
->xmit_bls_rsp
.wqe_dest
, 0x1);
6121 bf_set(wqe_ctxt_tag
, &wqe
->xmit_bls_rsp
.wqe_com
,
6122 iocbq
->iocb
.ulpContext
);
6123 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
6124 command_type
= OTHER_COMMAND
;
6126 case CMD_XRI_ABORTED_CX
:
6127 case CMD_CREATE_XRI_CR
: /* Do we expect to use this? */
6128 /* words0-2 are all 0's no bde */
6129 /* word3 and word4 are rsvrd */
6132 /* word5 iocb=rsvd wge=did */
6133 /* There is no remote port id in the IOCB? */
6134 /* Let this fall through and fail */
6135 case CMD_IOCB_FCP_IBIDIR64_CR
: /* bidirectional xfer */
6136 case CMD_FCP_TSEND64_CX
: /* Target mode send xfer-ready */
6137 case CMD_FCP_TRSP64_CX
: /* Target mode rcv */
6138 case CMD_FCP_AUTO_TRSP_CX
: /* Auto target rsp */
6140 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
6141 "2014 Invalid command 0x%x\n",
6142 iocbq
->iocb
.ulpCommand
);
6147 bf_set(lpfc_wqe_gen_xri
, &wqe
->generic
, xritag
);
6148 bf_set(lpfc_wqe_gen_request_tag
, &wqe
->generic
, iocbq
->iotag
);
6149 wqe
->generic
.abort_tag
= abort_tag
;
6150 bf_set(lpfc_wqe_gen_cmd_type
, &wqe
->generic
, command_type
);
6151 bf_set(lpfc_wqe_gen_command
, &wqe
->generic
, cmnd
);
6152 bf_set(lpfc_wqe_gen_class
, &wqe
->generic
, iocbq
->iocb
.ulpClass
);
6153 bf_set(lpfc_wqe_gen_cq_id
, &wqe
->generic
, LPFC_WQE_CQ_ID_DEFAULT
);
6159 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
6160 * @phba: Pointer to HBA context object.
6161 * @ring_number: SLI ring number to issue iocb on.
6162 * @piocb: Pointer to command iocb.
6163 * @flag: Flag indicating if this command can be put into txq.
6165 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
6166 * an iocb command to an HBA with SLI-4 interface spec.
6168 * This function is called with hbalock held. The function will return success
6169 * after it successfully submit the iocb to firmware or after adding to the
6173 __lpfc_sli_issue_iocb_s4(struct lpfc_hba
*phba
, uint32_t ring_number
,
6174 struct lpfc_iocbq
*piocb
, uint32_t flag
)
6176 struct lpfc_sglq
*sglq
;
6179 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[ring_number
];
6181 if (piocb
->sli4_xritag
== NO_XRI
) {
6182 if (piocb
->iocb
.ulpCommand
== CMD_ABORT_XRI_CN
||
6183 piocb
->iocb
.ulpCommand
== CMD_CLOSE_XRI_CN
)
6186 sglq
= __lpfc_sli_get_sglq(phba
);
6189 piocb
->sli4_xritag
= sglq
->sli4_xritag
;
6191 } else if (piocb
->iocb_flag
& LPFC_IO_FCP
) {
6192 sglq
= NULL
; /* These IO's already have an XRI and
6196 /* This is a continuation of a commandi,(CX) so this
6197 * sglq is on the active list
6199 sglq
= __lpfc_get_active_sglq(phba
, piocb
->sli4_xritag
);
6205 xritag
= lpfc_sli4_bpl2sgl(phba
, piocb
, sglq
);
6206 if (xritag
!= sglq
->sli4_xritag
)
6210 if (lpfc_sli4_iocb2wqe(phba
, piocb
, &wqe
))
6213 if ((piocb
->iocb_flag
& LPFC_IO_FCP
) ||
6214 (piocb
->iocb_flag
& LPFC_USE_FCPWQIDX
)) {
6216 * For FCP command IOCB, get a new WQ index to distribute
6217 * WQE across the WQsr. On the other hand, for abort IOCB,
6218 * it carries the same WQ index to the original command
6221 if (piocb
->iocb_flag
& LPFC_IO_FCP
)
6222 piocb
->fcp_wqidx
= lpfc_sli4_scmd_to_wqidx_distr(phba
);
6223 if (lpfc_sli4_wq_put(phba
->sli4_hba
.fcp_wq
[piocb
->fcp_wqidx
],
6227 if (lpfc_sli4_wq_put(phba
->sli4_hba
.els_wq
, &wqe
))
6230 lpfc_sli_ringtxcmpl_put(phba
, pring
, piocb
);
6236 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
6238 * This routine wraps the actual lockless version for issusing IOCB function
6239 * pointer from the lpfc_hba struct.
6242 * IOCB_ERROR - Error
6243 * IOCB_SUCCESS - Success
6247 __lpfc_sli_issue_iocb(struct lpfc_hba
*phba
, uint32_t ring_number
,
6248 struct lpfc_iocbq
*piocb
, uint32_t flag
)
6250 return phba
->__lpfc_sli_issue_iocb(phba
, ring_number
, piocb
, flag
);
6254 * lpfc_sli_api_table_setup - Set up sli api fucntion jump table
6255 * @phba: The hba struct for which this call is being executed.
6256 * @dev_grp: The HBA PCI-Device group number.
6258 * This routine sets up the SLI interface API function jump table in @phba
6260 * Returns: 0 - success, -ENODEV - failure.
6263 lpfc_sli_api_table_setup(struct lpfc_hba
*phba
, uint8_t dev_grp
)
6267 case LPFC_PCI_DEV_LP
:
6268 phba
->__lpfc_sli_issue_iocb
= __lpfc_sli_issue_iocb_s3
;
6269 phba
->__lpfc_sli_release_iocbq
= __lpfc_sli_release_iocbq_s3
;
6271 case LPFC_PCI_DEV_OC
:
6272 phba
->__lpfc_sli_issue_iocb
= __lpfc_sli_issue_iocb_s4
;
6273 phba
->__lpfc_sli_release_iocbq
= __lpfc_sli_release_iocbq_s4
;
6276 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6277 "1419 Invalid HBA PCI-device group: 0x%x\n",
6282 phba
->lpfc_get_iocb_from_iocbq
= lpfc_get_iocb_from_iocbq
;
6287 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
6288 * @phba: Pointer to HBA context object.
6289 * @pring: Pointer to driver SLI ring object.
6290 * @piocb: Pointer to command iocb.
6291 * @flag: Flag indicating if this command can be put into txq.
6293 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
6294 * function. This function gets the hbalock and calls
6295 * __lpfc_sli_issue_iocb function and will return the error returned
6296 * by __lpfc_sli_issue_iocb function. This wrapper is used by
6297 * functions which do not hold hbalock.
6300 lpfc_sli_issue_iocb(struct lpfc_hba
*phba
, uint32_t ring_number
,
6301 struct lpfc_iocbq
*piocb
, uint32_t flag
)
6303 unsigned long iflags
;
6306 spin_lock_irqsave(&phba
->hbalock
, iflags
);
6307 rc
= __lpfc_sli_issue_iocb(phba
, ring_number
, piocb
, flag
);
6308 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
6314 * lpfc_extra_ring_setup - Extra ring setup function
6315 * @phba: Pointer to HBA context object.
6317 * This function is called while driver attaches with the
6318 * HBA to setup the extra ring. The extra ring is used
6319 * only when driver needs to support target mode functionality
6320 * or IP over FC functionalities.
6322 * This function is called with no lock held.
6325 lpfc_extra_ring_setup( struct lpfc_hba
*phba
)
6327 struct lpfc_sli
*psli
;
6328 struct lpfc_sli_ring
*pring
;
6332 /* Adjust cmd/rsp ring iocb entries more evenly */
6334 /* Take some away from the FCP ring */
6335 pring
= &psli
->ring
[psli
->fcp_ring
];
6336 pring
->numCiocb
-= SLI2_IOCB_CMD_R1XTRA_ENTRIES
;
6337 pring
->numRiocb
-= SLI2_IOCB_RSP_R1XTRA_ENTRIES
;
6338 pring
->numCiocb
-= SLI2_IOCB_CMD_R3XTRA_ENTRIES
;
6339 pring
->numRiocb
-= SLI2_IOCB_RSP_R3XTRA_ENTRIES
;
6341 /* and give them to the extra ring */
6342 pring
= &psli
->ring
[psli
->extra_ring
];
6344 pring
->numCiocb
+= SLI2_IOCB_CMD_R1XTRA_ENTRIES
;
6345 pring
->numRiocb
+= SLI2_IOCB_RSP_R1XTRA_ENTRIES
;
6346 pring
->numCiocb
+= SLI2_IOCB_CMD_R3XTRA_ENTRIES
;
6347 pring
->numRiocb
+= SLI2_IOCB_RSP_R3XTRA_ENTRIES
;
6349 /* Setup default profile for this ring */
6350 pring
->iotag_max
= 4096;
6351 pring
->num_mask
= 1;
6352 pring
->prt
[0].profile
= 0; /* Mask 0 */
6353 pring
->prt
[0].rctl
= phba
->cfg_multi_ring_rctl
;
6354 pring
->prt
[0].type
= phba
->cfg_multi_ring_type
;
6355 pring
->prt
[0].lpfc_sli_rcv_unsol_event
= NULL
;
6360 * lpfc_sli_async_event_handler - ASYNC iocb handler function
6361 * @phba: Pointer to HBA context object.
6362 * @pring: Pointer to driver SLI ring object.
6363 * @iocbq: Pointer to iocb object.
6365 * This function is called by the slow ring event handler
6366 * function when there is an ASYNC event iocb in the ring.
6367 * This function is called with no lock held.
6368 * Currently this function handles only temperature related
6369 * ASYNC events. The function decodes the temperature sensor
6370 * event message and posts events for the management applications.
6373 lpfc_sli_async_event_handler(struct lpfc_hba
* phba
,
6374 struct lpfc_sli_ring
* pring
, struct lpfc_iocbq
* iocbq
)
6379 struct temp_event temp_event_data
;
6380 struct Scsi_Host
*shost
;
6383 icmd
= &iocbq
->iocb
;
6384 evt_code
= icmd
->un
.asyncstat
.evt_code
;
6385 temp
= icmd
->ulpContext
;
6387 if ((evt_code
!= ASYNC_TEMP_WARN
) &&
6388 (evt_code
!= ASYNC_TEMP_SAFE
)) {
6389 iocb_w
= (uint32_t *) icmd
;
6390 lpfc_printf_log(phba
,
6393 "0346 Ring %d handler: unexpected ASYNC_STATUS"
6395 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
6396 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
6397 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
6398 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
6400 icmd
->un
.asyncstat
.evt_code
,
6401 iocb_w
[0], iocb_w
[1], iocb_w
[2], iocb_w
[3],
6402 iocb_w
[4], iocb_w
[5], iocb_w
[6], iocb_w
[7],
6403 iocb_w
[8], iocb_w
[9], iocb_w
[10], iocb_w
[11],
6404 iocb_w
[12], iocb_w
[13], iocb_w
[14], iocb_w
[15]);
6408 temp_event_data
.data
= (uint32_t)temp
;
6409 temp_event_data
.event_type
= FC_REG_TEMPERATURE_EVENT
;
6410 if (evt_code
== ASYNC_TEMP_WARN
) {
6411 temp_event_data
.event_code
= LPFC_THRESHOLD_TEMP
;
6412 lpfc_printf_log(phba
,
6415 "0347 Adapter is very hot, please take "
6416 "corrective action. temperature : %d Celsius\n",
6419 if (evt_code
== ASYNC_TEMP_SAFE
) {
6420 temp_event_data
.event_code
= LPFC_NORMAL_TEMP
;
6421 lpfc_printf_log(phba
,
6424 "0340 Adapter temperature is OK now. "
6425 "temperature : %d Celsius\n",
6429 /* Send temperature change event to applications */
6430 shost
= lpfc_shost_from_vport(phba
->pport
);
6431 fc_host_post_vendor_event(shost
, fc_get_event_number(),
6432 sizeof(temp_event_data
), (char *) &temp_event_data
,
6439 * lpfc_sli_setup - SLI ring setup function
6440 * @phba: Pointer to HBA context object.
6442 * lpfc_sli_setup sets up rings of the SLI interface with
6443 * number of iocbs per ring and iotags. This function is
6444 * called while driver attach to the HBA and before the
6445 * interrupts are enabled. So there is no need for locking.
6447 * This function always returns 0.
6450 lpfc_sli_setup(struct lpfc_hba
*phba
)
6452 int i
, totiocbsize
= 0;
6453 struct lpfc_sli
*psli
= &phba
->sli
;
6454 struct lpfc_sli_ring
*pring
;
6456 psli
->num_rings
= MAX_CONFIGURED_RINGS
;
6458 psli
->fcp_ring
= LPFC_FCP_RING
;
6459 psli
->next_ring
= LPFC_FCP_NEXT_RING
;
6460 psli
->extra_ring
= LPFC_EXTRA_RING
;
6462 psli
->iocbq_lookup
= NULL
;
6463 psli
->iocbq_lookup_len
= 0;
6464 psli
->last_iotag
= 0;
6466 for (i
= 0; i
< psli
->num_rings
; i
++) {
6467 pring
= &psli
->ring
[i
];
6469 case LPFC_FCP_RING
: /* ring 0 - FCP */
6470 /* numCiocb and numRiocb are used in config_port */
6471 pring
->numCiocb
= SLI2_IOCB_CMD_R0_ENTRIES
;
6472 pring
->numRiocb
= SLI2_IOCB_RSP_R0_ENTRIES
;
6473 pring
->numCiocb
+= SLI2_IOCB_CMD_R1XTRA_ENTRIES
;
6474 pring
->numRiocb
+= SLI2_IOCB_RSP_R1XTRA_ENTRIES
;
6475 pring
->numCiocb
+= SLI2_IOCB_CMD_R3XTRA_ENTRIES
;
6476 pring
->numRiocb
+= SLI2_IOCB_RSP_R3XTRA_ENTRIES
;
6477 pring
->sizeCiocb
= (phba
->sli_rev
== 3) ?
6478 SLI3_IOCB_CMD_SIZE
:
6480 pring
->sizeRiocb
= (phba
->sli_rev
== 3) ?
6481 SLI3_IOCB_RSP_SIZE
:
6483 pring
->iotag_ctr
= 0;
6485 (phba
->cfg_hba_queue_depth
* 2);
6486 pring
->fast_iotag
= pring
->iotag_max
;
6487 pring
->num_mask
= 0;
6489 case LPFC_EXTRA_RING
: /* ring 1 - EXTRA */
6490 /* numCiocb and numRiocb are used in config_port */
6491 pring
->numCiocb
= SLI2_IOCB_CMD_R1_ENTRIES
;
6492 pring
->numRiocb
= SLI2_IOCB_RSP_R1_ENTRIES
;
6493 pring
->sizeCiocb
= (phba
->sli_rev
== 3) ?
6494 SLI3_IOCB_CMD_SIZE
:
6496 pring
->sizeRiocb
= (phba
->sli_rev
== 3) ?
6497 SLI3_IOCB_RSP_SIZE
:
6499 pring
->iotag_max
= phba
->cfg_hba_queue_depth
;
6500 pring
->num_mask
= 0;
6502 case LPFC_ELS_RING
: /* ring 2 - ELS / CT */
6503 /* numCiocb and numRiocb are used in config_port */
6504 pring
->numCiocb
= SLI2_IOCB_CMD_R2_ENTRIES
;
6505 pring
->numRiocb
= SLI2_IOCB_RSP_R2_ENTRIES
;
6506 pring
->sizeCiocb
= (phba
->sli_rev
== 3) ?
6507 SLI3_IOCB_CMD_SIZE
:
6509 pring
->sizeRiocb
= (phba
->sli_rev
== 3) ?
6510 SLI3_IOCB_RSP_SIZE
:
6512 pring
->fast_iotag
= 0;
6513 pring
->iotag_ctr
= 0;
6514 pring
->iotag_max
= 4096;
6515 pring
->lpfc_sli_rcv_async_status
=
6516 lpfc_sli_async_event_handler
;
6517 pring
->num_mask
= LPFC_MAX_RING_MASK
;
6518 pring
->prt
[0].profile
= 0; /* Mask 0 */
6519 pring
->prt
[0].rctl
= FC_RCTL_ELS_REQ
;
6520 pring
->prt
[0].type
= FC_TYPE_ELS
;
6521 pring
->prt
[0].lpfc_sli_rcv_unsol_event
=
6522 lpfc_els_unsol_event
;
6523 pring
->prt
[1].profile
= 0; /* Mask 1 */
6524 pring
->prt
[1].rctl
= FC_RCTL_ELS_REP
;
6525 pring
->prt
[1].type
= FC_TYPE_ELS
;
6526 pring
->prt
[1].lpfc_sli_rcv_unsol_event
=
6527 lpfc_els_unsol_event
;
6528 pring
->prt
[2].profile
= 0; /* Mask 2 */
6529 /* NameServer Inquiry */
6530 pring
->prt
[2].rctl
= FC_RCTL_DD_UNSOL_CTL
;
6532 pring
->prt
[2].type
= FC_TYPE_CT
;
6533 pring
->prt
[2].lpfc_sli_rcv_unsol_event
=
6534 lpfc_ct_unsol_event
;
6535 pring
->prt
[3].profile
= 0; /* Mask 3 */
6536 /* NameServer response */
6537 pring
->prt
[3].rctl
= FC_RCTL_DD_SOL_CTL
;
6539 pring
->prt
[3].type
= FC_TYPE_CT
;
6540 pring
->prt
[3].lpfc_sli_rcv_unsol_event
=
6541 lpfc_ct_unsol_event
;
6542 /* abort unsolicited sequence */
6543 pring
->prt
[4].profile
= 0; /* Mask 4 */
6544 pring
->prt
[4].rctl
= FC_RCTL_BA_ABTS
;
6545 pring
->prt
[4].type
= FC_TYPE_BLS
;
6546 pring
->prt
[4].lpfc_sli_rcv_unsol_event
=
6547 lpfc_sli4_ct_abort_unsol_event
;
6550 totiocbsize
+= (pring
->numCiocb
* pring
->sizeCiocb
) +
6551 (pring
->numRiocb
* pring
->sizeRiocb
);
6553 if (totiocbsize
> MAX_SLIM_IOCB_SIZE
) {
6554 /* Too many cmd / rsp ring entries in SLI2 SLIM */
6555 printk(KERN_ERR
"%d:0462 Too many cmd / rsp ring entries in "
6556 "SLI2 SLIM Data: x%x x%lx\n",
6557 phba
->brd_no
, totiocbsize
,
6558 (unsigned long) MAX_SLIM_IOCB_SIZE
);
6560 if (phba
->cfg_multi_ring_support
== 2)
6561 lpfc_extra_ring_setup(phba
);
6567 * lpfc_sli_queue_setup - Queue initialization function
6568 * @phba: Pointer to HBA context object.
6570 * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each
6571 * ring. This function also initializes ring indices of each ring.
6572 * This function is called during the initialization of the SLI
6573 * interface of an HBA.
6574 * This function is called with no lock held and always returns
6578 lpfc_sli_queue_setup(struct lpfc_hba
*phba
)
6580 struct lpfc_sli
*psli
;
6581 struct lpfc_sli_ring
*pring
;
6585 spin_lock_irq(&phba
->hbalock
);
6586 INIT_LIST_HEAD(&psli
->mboxq
);
6587 INIT_LIST_HEAD(&psli
->mboxq_cmpl
);
6588 /* Initialize list headers for txq and txcmplq as double linked lists */
6589 for (i
= 0; i
< psli
->num_rings
; i
++) {
6590 pring
= &psli
->ring
[i
];
6592 pring
->next_cmdidx
= 0;
6593 pring
->local_getidx
= 0;
6595 INIT_LIST_HEAD(&pring
->txq
);
6596 INIT_LIST_HEAD(&pring
->txcmplq
);
6597 INIT_LIST_HEAD(&pring
->iocb_continueq
);
6598 INIT_LIST_HEAD(&pring
->iocb_continue_saveq
);
6599 INIT_LIST_HEAD(&pring
->postbufq
);
6601 spin_unlock_irq(&phba
->hbalock
);
6606 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
6607 * @phba: Pointer to HBA context object.
6609 * This routine flushes the mailbox command subsystem. It will unconditionally
6610 * flush all the mailbox commands in the three possible stages in the mailbox
6611 * command sub-system: pending mailbox command queue; the outstanding mailbox
6612 * command; and completed mailbox command queue. It is caller's responsibility
6613 * to make sure that the driver is in the proper state to flush the mailbox
6614 * command sub-system. Namely, the posting of mailbox commands into the
6615 * pending mailbox command queue from the various clients must be stopped;
6616 * either the HBA is in a state that it will never works on the outstanding
6617 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
6618 * mailbox command has been completed.
6621 lpfc_sli_mbox_sys_flush(struct lpfc_hba
*phba
)
6623 LIST_HEAD(completions
);
6624 struct lpfc_sli
*psli
= &phba
->sli
;
6626 unsigned long iflag
;
6628 /* Flush all the mailbox commands in the mbox system */
6629 spin_lock_irqsave(&phba
->hbalock
, iflag
);
6630 /* The pending mailbox command queue */
6631 list_splice_init(&phba
->sli
.mboxq
, &completions
);
6632 /* The outstanding active mailbox command */
6633 if (psli
->mbox_active
) {
6634 list_add_tail(&psli
->mbox_active
->list
, &completions
);
6635 psli
->mbox_active
= NULL
;
6636 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
6638 /* The completed mailbox command queue */
6639 list_splice_init(&phba
->sli
.mboxq_cmpl
, &completions
);
6640 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
6642 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
6643 while (!list_empty(&completions
)) {
6644 list_remove_head(&completions
, pmb
, LPFC_MBOXQ_t
, list
);
6645 pmb
->u
.mb
.mbxStatus
= MBX_NOT_FINISHED
;
6647 pmb
->mbox_cmpl(phba
, pmb
);
6652 * lpfc_sli_host_down - Vport cleanup function
6653 * @vport: Pointer to virtual port object.
6655 * lpfc_sli_host_down is called to clean up the resources
6656 * associated with a vport before destroying virtual
6657 * port data structures.
6658 * This function does following operations:
6659 * - Free discovery resources associated with this virtual
6661 * - Free iocbs associated with this virtual port in
6663 * - Send abort for all iocb commands associated with this
6666 * This function is called with no lock held and always returns 1.
6669 lpfc_sli_host_down(struct lpfc_vport
*vport
)
6671 LIST_HEAD(completions
);
6672 struct lpfc_hba
*phba
= vport
->phba
;
6673 struct lpfc_sli
*psli
= &phba
->sli
;
6674 struct lpfc_sli_ring
*pring
;
6675 struct lpfc_iocbq
*iocb
, *next_iocb
;
6677 unsigned long flags
= 0;
6678 uint16_t prev_pring_flag
;
6680 lpfc_cleanup_discovery_resources(vport
);
6682 spin_lock_irqsave(&phba
->hbalock
, flags
);
6683 for (i
= 0; i
< psli
->num_rings
; i
++) {
6684 pring
= &psli
->ring
[i
];
6685 prev_pring_flag
= pring
->flag
;
6686 /* Only slow rings */
6687 if (pring
->ringno
== LPFC_ELS_RING
) {
6688 pring
->flag
|= LPFC_DEFERRED_RING_EVENT
;
6689 /* Set the lpfc data pending flag */
6690 set_bit(LPFC_DATA_READY
, &phba
->data_flags
);
6693 * Error everything on the txq since these iocbs have not been
6694 * given to the FW yet.
6696 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txq
, list
) {
6697 if (iocb
->vport
!= vport
)
6699 list_move_tail(&iocb
->list
, &completions
);
6703 /* Next issue ABTS for everything on the txcmplq */
6704 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txcmplq
,
6706 if (iocb
->vport
!= vport
)
6708 lpfc_sli_issue_abort_iotag(phba
, pring
, iocb
);
6711 pring
->flag
= prev_pring_flag
;
6714 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
6716 /* Cancel all the IOCBs from the completions list */
6717 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
6723 * lpfc_sli_hba_down - Resource cleanup function for the HBA
6724 * @phba: Pointer to HBA context object.
6726 * This function cleans up all iocb, buffers, mailbox commands
6727 * while shutting down the HBA. This function is called with no
6728 * lock held and always returns 1.
6729 * This function does the following to cleanup driver resources:
6730 * - Free discovery resources for each virtual port
6731 * - Cleanup any pending fabric iocbs
6732 * - Iterate through the iocb txq and free each entry
6734 * - Free up any buffer posted to the HBA
6735 * - Free mailbox commands in the mailbox queue.
6738 lpfc_sli_hba_down(struct lpfc_hba
*phba
)
6740 LIST_HEAD(completions
);
6741 struct lpfc_sli
*psli
= &phba
->sli
;
6742 struct lpfc_sli_ring
*pring
;
6743 struct lpfc_dmabuf
*buf_ptr
;
6744 unsigned long flags
= 0;
6747 /* Shutdown the mailbox command sub-system */
6748 lpfc_sli_mbox_sys_shutdown(phba
);
6750 lpfc_hba_down_prep(phba
);
6752 lpfc_fabric_abort_hba(phba
);
6754 spin_lock_irqsave(&phba
->hbalock
, flags
);
6755 for (i
= 0; i
< psli
->num_rings
; i
++) {
6756 pring
= &psli
->ring
[i
];
6757 /* Only slow rings */
6758 if (pring
->ringno
== LPFC_ELS_RING
) {
6759 pring
->flag
|= LPFC_DEFERRED_RING_EVENT
;
6760 /* Set the lpfc data pending flag */
6761 set_bit(LPFC_DATA_READY
, &phba
->data_flags
);
6765 * Error everything on the txq since these iocbs have not been
6766 * given to the FW yet.
6768 list_splice_init(&pring
->txq
, &completions
);
6772 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
6774 /* Cancel all the IOCBs from the completions list */
6775 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
6778 spin_lock_irqsave(&phba
->hbalock
, flags
);
6779 list_splice_init(&phba
->elsbuf
, &completions
);
6780 phba
->elsbuf_cnt
= 0;
6781 phba
->elsbuf_prev_cnt
= 0;
6782 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
6784 while (!list_empty(&completions
)) {
6785 list_remove_head(&completions
, buf_ptr
,
6786 struct lpfc_dmabuf
, list
);
6787 lpfc_mbuf_free(phba
, buf_ptr
->virt
, buf_ptr
->phys
);
6791 /* Return any active mbox cmds */
6792 del_timer_sync(&psli
->mbox_tmo
);
6794 spin_lock_irqsave(&phba
->pport
->work_port_lock
, flags
);
6795 phba
->pport
->work_port_events
&= ~WORKER_MBOX_TMO
;
6796 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, flags
);
6802 * lpfc_sli4_hba_down - PCI function resource cleanup for the SLI4 HBA
6803 * @phba: Pointer to HBA context object.
6805 * This function cleans up all queues, iocb, buffers, mailbox commands while
6806 * shutting down the SLI4 HBA FCoE function. This function is called with no
6807 * lock held and always returns 1.
6809 * This function does the following to cleanup driver FCoE function resources:
6810 * - Free discovery resources for each virtual port
6811 * - Cleanup any pending fabric iocbs
6812 * - Iterate through the iocb txq and free each entry in the list.
6813 * - Free up any buffer posted to the HBA.
6814 * - Clean up all the queue entries: WQ, RQ, MQ, EQ, CQ, etc.
6815 * - Free mailbox commands in the mailbox queue.
6818 lpfc_sli4_hba_down(struct lpfc_hba
*phba
)
6820 /* Stop the SLI4 device port */
6821 lpfc_stop_port(phba
);
6823 /* Tear down the queues in the HBA */
6824 lpfc_sli4_queue_unset(phba
);
6826 /* unregister default FCFI from the HBA */
6827 lpfc_sli4_fcfi_unreg(phba
, phba
->fcf
.fcfi
);
6833 * lpfc_sli_pcimem_bcopy - SLI memory copy function
6834 * @srcp: Source memory pointer.
6835 * @destp: Destination memory pointer.
6836 * @cnt: Number of words required to be copied.
6838 * This function is used for copying data between driver memory
6839 * and the SLI memory. This function also changes the endianness
6840 * of each word if native endianness is different from SLI
6841 * endianness. This function can be called with or without
6845 lpfc_sli_pcimem_bcopy(void *srcp
, void *destp
, uint32_t cnt
)
6847 uint32_t *src
= srcp
;
6848 uint32_t *dest
= destp
;
6852 for (i
= 0; i
< (int)cnt
; i
+= sizeof (uint32_t)) {
6854 ldata
= le32_to_cpu(ldata
);
6863 * lpfc_sli_bemem_bcopy - SLI memory copy function
6864 * @srcp: Source memory pointer.
6865 * @destp: Destination memory pointer.
6866 * @cnt: Number of words required to be copied.
6868 * This function is used for copying data between a data structure
6869 * with big endian representation to local endianness.
6870 * This function can be called with or without lock.
6873 lpfc_sli_bemem_bcopy(void *srcp
, void *destp
, uint32_t cnt
)
6875 uint32_t *src
= srcp
;
6876 uint32_t *dest
= destp
;
6880 for (i
= 0; i
< (int)cnt
; i
+= sizeof(uint32_t)) {
6882 ldata
= be32_to_cpu(ldata
);
6890 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
6891 * @phba: Pointer to HBA context object.
6892 * @pring: Pointer to driver SLI ring object.
6893 * @mp: Pointer to driver buffer object.
6895 * This function is called with no lock held.
6896 * It always return zero after adding the buffer to the postbufq
6900 lpfc_sli_ringpostbuf_put(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
6901 struct lpfc_dmabuf
*mp
)
6903 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
6905 spin_lock_irq(&phba
->hbalock
);
6906 list_add_tail(&mp
->list
, &pring
->postbufq
);
6907 pring
->postbufq_cnt
++;
6908 spin_unlock_irq(&phba
->hbalock
);
6913 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
6914 * @phba: Pointer to HBA context object.
6916 * When HBQ is enabled, buffers are searched based on tags. This function
6917 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
6918 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
6919 * does not conflict with tags of buffer posted for unsolicited events.
6920 * The function returns the allocated tag. The function is called with
6924 lpfc_sli_get_buffer_tag(struct lpfc_hba
*phba
)
6926 spin_lock_irq(&phba
->hbalock
);
6927 phba
->buffer_tag_count
++;
6929 * Always set the QUE_BUFTAG_BIT to distiguish between
6930 * a tag assigned by HBQ.
6932 phba
->buffer_tag_count
|= QUE_BUFTAG_BIT
;
6933 spin_unlock_irq(&phba
->hbalock
);
6934 return phba
->buffer_tag_count
;
6938 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
6939 * @phba: Pointer to HBA context object.
6940 * @pring: Pointer to driver SLI ring object.
6943 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
6944 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
6945 * iocb is posted to the response ring with the tag of the buffer.
6946 * This function searches the pring->postbufq list using the tag
6947 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
6948 * iocb. If the buffer is found then lpfc_dmabuf object of the
6949 * buffer is returned to the caller else NULL is returned.
6950 * This function is called with no lock held.
6952 struct lpfc_dmabuf
*
6953 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
6956 struct lpfc_dmabuf
*mp
, *next_mp
;
6957 struct list_head
*slp
= &pring
->postbufq
;
6959 /* Search postbufq, from the begining, looking for a match on tag */
6960 spin_lock_irq(&phba
->hbalock
);
6961 list_for_each_entry_safe(mp
, next_mp
, &pring
->postbufq
, list
) {
6962 if (mp
->buffer_tag
== tag
) {
6963 list_del_init(&mp
->list
);
6964 pring
->postbufq_cnt
--;
6965 spin_unlock_irq(&phba
->hbalock
);
6970 spin_unlock_irq(&phba
->hbalock
);
6971 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6972 "0402 Cannot find virtual addr for buffer tag on "
6973 "ring %d Data x%lx x%p x%p x%x\n",
6974 pring
->ringno
, (unsigned long) tag
,
6975 slp
->next
, slp
->prev
, pring
->postbufq_cnt
);
6981 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
6982 * @phba: Pointer to HBA context object.
6983 * @pring: Pointer to driver SLI ring object.
6984 * @phys: DMA address of the buffer.
6986 * This function searches the buffer list using the dma_address
6987 * of unsolicited event to find the driver's lpfc_dmabuf object
6988 * corresponding to the dma_address. The function returns the
6989 * lpfc_dmabuf object if a buffer is found else it returns NULL.
6990 * This function is called by the ct and els unsolicited event
6991 * handlers to get the buffer associated with the unsolicited
6994 * This function is called with no lock held.
6996 struct lpfc_dmabuf
*
6997 lpfc_sli_ringpostbuf_get(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
7000 struct lpfc_dmabuf
*mp
, *next_mp
;
7001 struct list_head
*slp
= &pring
->postbufq
;
7003 /* Search postbufq, from the begining, looking for a match on phys */
7004 spin_lock_irq(&phba
->hbalock
);
7005 list_for_each_entry_safe(mp
, next_mp
, &pring
->postbufq
, list
) {
7006 if (mp
->phys
== phys
) {
7007 list_del_init(&mp
->list
);
7008 pring
->postbufq_cnt
--;
7009 spin_unlock_irq(&phba
->hbalock
);
7014 spin_unlock_irq(&phba
->hbalock
);
7015 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7016 "0410 Cannot find virtual addr for mapped buf on "
7017 "ring %d Data x%llx x%p x%p x%x\n",
7018 pring
->ringno
, (unsigned long long)phys
,
7019 slp
->next
, slp
->prev
, pring
->postbufq_cnt
);
7024 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
7025 * @phba: Pointer to HBA context object.
7026 * @cmdiocb: Pointer to driver command iocb object.
7027 * @rspiocb: Pointer to driver response iocb object.
7029 * This function is the completion handler for the abort iocbs for
7030 * ELS commands. This function is called from the ELS ring event
7031 * handler with no lock held. This function frees memory resources
7032 * associated with the abort iocb.
7035 lpfc_sli_abort_els_cmpl(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
7036 struct lpfc_iocbq
*rspiocb
)
7038 IOCB_t
*irsp
= &rspiocb
->iocb
;
7039 uint16_t abort_iotag
, abort_context
;
7040 struct lpfc_iocbq
*abort_iocb
;
7041 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
7045 if (irsp
->ulpStatus
) {
7046 abort_context
= cmdiocb
->iocb
.un
.acxri
.abortContextTag
;
7047 abort_iotag
= cmdiocb
->iocb
.un
.acxri
.abortIoTag
;
7049 spin_lock_irq(&phba
->hbalock
);
7050 if (phba
->sli_rev
< LPFC_SLI_REV4
) {
7051 if (abort_iotag
!= 0 &&
7052 abort_iotag
<= phba
->sli
.last_iotag
)
7054 phba
->sli
.iocbq_lookup
[abort_iotag
];
7056 /* For sli4 the abort_tag is the XRI,
7057 * so the abort routine puts the iotag of the iocb
7058 * being aborted in the context field of the abort
7061 abort_iocb
= phba
->sli
.iocbq_lookup
[abort_context
];
7063 lpfc_printf_log(phba
, KERN_INFO
, LOG_ELS
| LOG_SLI
,
7064 "0327 Cannot abort els iocb %p "
7065 "with tag %x context %x, abort status %x, "
7067 abort_iocb
, abort_iotag
, abort_context
,
7068 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4]);
7071 * If the iocb is not found in Firmware queue the iocb
7072 * might have completed already. Do not free it again.
7074 if (irsp
->ulpStatus
== IOSTAT_LOCAL_REJECT
) {
7075 if (irsp
->un
.ulpWord
[4] != IOERR_NO_XRI
) {
7076 spin_unlock_irq(&phba
->hbalock
);
7077 lpfc_sli_release_iocbq(phba
, cmdiocb
);
7080 /* For SLI4 the ulpContext field for abort IOCB
7081 * holds the iotag of the IOCB being aborted so
7082 * the local abort_context needs to be reset to
7083 * match the aborted IOCBs ulpContext.
7085 if (abort_iocb
&& phba
->sli_rev
== LPFC_SLI_REV4
)
7086 abort_context
= abort_iocb
->iocb
.ulpContext
;
7089 * make sure we have the right iocbq before taking it
7090 * off the txcmplq and try to call completion routine.
7093 abort_iocb
->iocb
.ulpContext
!= abort_context
||
7094 (abort_iocb
->iocb_flag
& LPFC_DRIVER_ABORTED
) == 0)
7095 spin_unlock_irq(&phba
->hbalock
);
7096 else if (phba
->sli_rev
< LPFC_SLI_REV4
) {
7098 * leave the SLI4 aborted command on the txcmplq
7099 * list and the command complete WCQE's XB bit
7100 * will tell whether the SGL (XRI) can be released
7101 * immediately or to the aborted SGL list for the
7102 * following abort XRI from the HBA.
7104 list_del_init(&abort_iocb
->list
);
7105 pring
->txcmplq_cnt
--;
7106 spin_unlock_irq(&phba
->hbalock
);
7108 /* Firmware could still be in progress of DMAing
7109 * payload, so don't free data buffer till after
7112 spin_lock_irq(&phba
->hbalock
);
7113 abort_iocb
->iocb_flag
|= LPFC_DELAY_MEM_FREE
;
7114 abort_iocb
->iocb_flag
&= ~LPFC_DRIVER_ABORTED
;
7115 spin_unlock_irq(&phba
->hbalock
);
7117 abort_iocb
->iocb
.ulpStatus
= IOSTAT_LOCAL_REJECT
;
7118 abort_iocb
->iocb
.un
.ulpWord
[4] = IOERR_ABORT_REQUESTED
;
7119 (abort_iocb
->iocb_cmpl
)(phba
, abort_iocb
, abort_iocb
);
7123 lpfc_sli_release_iocbq(phba
, cmdiocb
);
7128 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
7129 * @phba: Pointer to HBA context object.
7130 * @cmdiocb: Pointer to driver command iocb object.
7131 * @rspiocb: Pointer to driver response iocb object.
7133 * The function is called from SLI ring event handler with no
7134 * lock held. This function is the completion handler for ELS commands
7135 * which are aborted. The function frees memory resources used for
7136 * the aborted ELS commands.
7139 lpfc_ignore_els_cmpl(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
7140 struct lpfc_iocbq
*rspiocb
)
7142 IOCB_t
*irsp
= &rspiocb
->iocb
;
7144 /* ELS cmd tag <ulpIoTag> completes */
7145 lpfc_printf_log(phba
, KERN_INFO
, LOG_ELS
,
7146 "0139 Ignoring ELS cmd tag x%x completion Data: "
7148 irsp
->ulpIoTag
, irsp
->ulpStatus
,
7149 irsp
->un
.ulpWord
[4], irsp
->ulpTimeout
);
7150 if (cmdiocb
->iocb
.ulpCommand
== CMD_GEN_REQUEST64_CR
)
7151 lpfc_ct_free_iocb(phba
, cmdiocb
);
7153 lpfc_els_free_iocb(phba
, cmdiocb
);
7158 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
7159 * @phba: Pointer to HBA context object.
7160 * @pring: Pointer to driver SLI ring object.
7161 * @cmdiocb: Pointer to driver command iocb object.
7163 * This function issues an abort iocb for the provided command
7164 * iocb. This function is called with hbalock held.
7165 * The function returns 0 when it fails due to memory allocation
7166 * failure or when the command iocb is an abort request.
7169 lpfc_sli_issue_abort_iotag(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
7170 struct lpfc_iocbq
*cmdiocb
)
7172 struct lpfc_vport
*vport
= cmdiocb
->vport
;
7173 struct lpfc_iocbq
*abtsiocbp
;
7174 IOCB_t
*icmd
= NULL
;
7175 IOCB_t
*iabt
= NULL
;
7176 int retval
= IOCB_ERROR
;
7179 * There are certain command types we don't want to abort. And we
7180 * don't want to abort commands that are already in the process of
7183 icmd
= &cmdiocb
->iocb
;
7184 if (icmd
->ulpCommand
== CMD_ABORT_XRI_CN
||
7185 icmd
->ulpCommand
== CMD_CLOSE_XRI_CN
||
7186 (cmdiocb
->iocb_flag
& LPFC_DRIVER_ABORTED
) != 0)
7189 /* If we're unloading, don't abort iocb on the ELS ring, but change the
7190 * callback so that nothing happens when it finishes.
7192 if ((vport
->load_flag
& FC_UNLOADING
) &&
7193 (pring
->ringno
== LPFC_ELS_RING
)) {
7194 if (cmdiocb
->iocb_flag
& LPFC_IO_FABRIC
)
7195 cmdiocb
->fabric_iocb_cmpl
= lpfc_ignore_els_cmpl
;
7197 cmdiocb
->iocb_cmpl
= lpfc_ignore_els_cmpl
;
7198 goto abort_iotag_exit
;
7201 /* issue ABTS for this IOCB based on iotag */
7202 abtsiocbp
= __lpfc_sli_get_iocbq(phba
);
7203 if (abtsiocbp
== NULL
)
7206 /* This signals the response to set the correct status
7207 * before calling the completion handler
7209 cmdiocb
->iocb_flag
|= LPFC_DRIVER_ABORTED
;
7211 iabt
= &abtsiocbp
->iocb
;
7212 iabt
->un
.acxri
.abortType
= ABORT_TYPE_ABTS
;
7213 iabt
->un
.acxri
.abortContextTag
= icmd
->ulpContext
;
7214 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
7215 iabt
->un
.acxri
.abortIoTag
= cmdiocb
->sli4_xritag
;
7216 iabt
->un
.acxri
.abortContextTag
= cmdiocb
->iotag
;
7219 iabt
->un
.acxri
.abortIoTag
= icmd
->ulpIoTag
;
7221 iabt
->ulpClass
= icmd
->ulpClass
;
7223 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
7224 abtsiocbp
->fcp_wqidx
= cmdiocb
->fcp_wqidx
;
7225 if (cmdiocb
->iocb_flag
& LPFC_IO_FCP
)
7226 abtsiocbp
->iocb_flag
|= LPFC_USE_FCPWQIDX
;
7228 if (phba
->link_state
>= LPFC_LINK_UP
)
7229 iabt
->ulpCommand
= CMD_ABORT_XRI_CN
;
7231 iabt
->ulpCommand
= CMD_CLOSE_XRI_CN
;
7233 abtsiocbp
->iocb_cmpl
= lpfc_sli_abort_els_cmpl
;
7235 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_SLI
,
7236 "0339 Abort xri x%x, original iotag x%x, "
7237 "abort cmd iotag x%x\n",
7238 iabt
->un
.acxri
.abortContextTag
,
7239 iabt
->un
.acxri
.abortIoTag
, abtsiocbp
->iotag
);
7240 retval
= __lpfc_sli_issue_iocb(phba
, pring
->ringno
, abtsiocbp
, 0);
7243 __lpfc_sli_release_iocbq(phba
, abtsiocbp
);
7246 * Caller to this routine should check for IOCB_ERROR
7247 * and handle it properly. This routine no longer removes
7248 * iocb off txcmplq and call compl in case of IOCB_ERROR.
7254 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
7255 * @iocbq: Pointer to driver iocb object.
7256 * @vport: Pointer to driver virtual port object.
7257 * @tgt_id: SCSI ID of the target.
7258 * @lun_id: LUN ID of the scsi device.
7259 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
7261 * This function acts as an iocb filter for functions which abort or count
7262 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
7263 * 0 if the filtering criteria is met for the given iocb and will return
7264 * 1 if the filtering criteria is not met.
7265 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
7266 * given iocb is for the SCSI device specified by vport, tgt_id and
7268 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
7269 * given iocb is for the SCSI target specified by vport and tgt_id
7271 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
7272 * given iocb is for the SCSI host associated with the given vport.
7273 * This function is called with no locks held.
7276 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq
*iocbq
, struct lpfc_vport
*vport
,
7277 uint16_t tgt_id
, uint64_t lun_id
,
7278 lpfc_ctx_cmd ctx_cmd
)
7280 struct lpfc_scsi_buf
*lpfc_cmd
;
7283 if (!(iocbq
->iocb_flag
& LPFC_IO_FCP
))
7286 if (iocbq
->vport
!= vport
)
7289 lpfc_cmd
= container_of(iocbq
, struct lpfc_scsi_buf
, cur_iocbq
);
7291 if (lpfc_cmd
->pCmd
== NULL
)
7296 if ((lpfc_cmd
->rdata
->pnode
) &&
7297 (lpfc_cmd
->rdata
->pnode
->nlp_sid
== tgt_id
) &&
7298 (scsilun_to_int(&lpfc_cmd
->fcp_cmnd
->fcp_lun
) == lun_id
))
7302 if ((lpfc_cmd
->rdata
->pnode
) &&
7303 (lpfc_cmd
->rdata
->pnode
->nlp_sid
== tgt_id
))
7310 printk(KERN_ERR
"%s: Unknown context cmd type, value %d\n",
7319 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
7320 * @vport: Pointer to virtual port.
7321 * @tgt_id: SCSI ID of the target.
7322 * @lun_id: LUN ID of the scsi device.
7323 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
7325 * This function returns number of FCP commands pending for the vport.
7326 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
7327 * commands pending on the vport associated with SCSI device specified
7328 * by tgt_id and lun_id parameters.
7329 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
7330 * commands pending on the vport associated with SCSI target specified
7331 * by tgt_id parameter.
7332 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
7333 * commands pending on the vport.
7334 * This function returns the number of iocbs which satisfy the filter.
7335 * This function is called without any lock held.
7338 lpfc_sli_sum_iocb(struct lpfc_vport
*vport
, uint16_t tgt_id
, uint64_t lun_id
,
7339 lpfc_ctx_cmd ctx_cmd
)
7341 struct lpfc_hba
*phba
= vport
->phba
;
7342 struct lpfc_iocbq
*iocbq
;
7345 for (i
= 1, sum
= 0; i
<= phba
->sli
.last_iotag
; i
++) {
7346 iocbq
= phba
->sli
.iocbq_lookup
[i
];
7348 if (lpfc_sli_validate_fcp_iocb (iocbq
, vport
, tgt_id
, lun_id
,
7357 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
7358 * @phba: Pointer to HBA context object
7359 * @cmdiocb: Pointer to command iocb object.
7360 * @rspiocb: Pointer to response iocb object.
7362 * This function is called when an aborted FCP iocb completes. This
7363 * function is called by the ring event handler with no lock held.
7364 * This function frees the iocb.
7367 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
7368 struct lpfc_iocbq
*rspiocb
)
7370 lpfc_sli_release_iocbq(phba
, cmdiocb
);
7375 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
7376 * @vport: Pointer to virtual port.
7377 * @pring: Pointer to driver SLI ring object.
7378 * @tgt_id: SCSI ID of the target.
7379 * @lun_id: LUN ID of the scsi device.
7380 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
7382 * This function sends an abort command for every SCSI command
7383 * associated with the given virtual port pending on the ring
7384 * filtered by lpfc_sli_validate_fcp_iocb function.
7385 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
7386 * FCP iocbs associated with lun specified by tgt_id and lun_id
7388 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
7389 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
7390 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
7391 * FCP iocbs associated with virtual port.
7392 * This function returns number of iocbs it failed to abort.
7393 * This function is called with no locks held.
7396 lpfc_sli_abort_iocb(struct lpfc_vport
*vport
, struct lpfc_sli_ring
*pring
,
7397 uint16_t tgt_id
, uint64_t lun_id
, lpfc_ctx_cmd abort_cmd
)
7399 struct lpfc_hba
*phba
= vport
->phba
;
7400 struct lpfc_iocbq
*iocbq
;
7401 struct lpfc_iocbq
*abtsiocb
;
7403 int errcnt
= 0, ret_val
= 0;
7406 for (i
= 1; i
<= phba
->sli
.last_iotag
; i
++) {
7407 iocbq
= phba
->sli
.iocbq_lookup
[i
];
7409 if (lpfc_sli_validate_fcp_iocb(iocbq
, vport
, tgt_id
, lun_id
,
7413 /* issue ABTS for this IOCB based on iotag */
7414 abtsiocb
= lpfc_sli_get_iocbq(phba
);
7415 if (abtsiocb
== NULL
) {
7421 abtsiocb
->iocb
.un
.acxri
.abortType
= ABORT_TYPE_ABTS
;
7422 abtsiocb
->iocb
.un
.acxri
.abortContextTag
= cmd
->ulpContext
;
7423 if (phba
->sli_rev
== LPFC_SLI_REV4
)
7424 abtsiocb
->iocb
.un
.acxri
.abortIoTag
= iocbq
->sli4_xritag
;
7426 abtsiocb
->iocb
.un
.acxri
.abortIoTag
= cmd
->ulpIoTag
;
7427 abtsiocb
->iocb
.ulpLe
= 1;
7428 abtsiocb
->iocb
.ulpClass
= cmd
->ulpClass
;
7429 abtsiocb
->vport
= phba
->pport
;
7431 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
7432 abtsiocb
->fcp_wqidx
= iocbq
->fcp_wqidx
;
7433 if (iocbq
->iocb_flag
& LPFC_IO_FCP
)
7434 abtsiocb
->iocb_flag
|= LPFC_USE_FCPWQIDX
;
7436 if (lpfc_is_link_up(phba
))
7437 abtsiocb
->iocb
.ulpCommand
= CMD_ABORT_XRI_CN
;
7439 abtsiocb
->iocb
.ulpCommand
= CMD_CLOSE_XRI_CN
;
7441 /* Setup callback routine and issue the command. */
7442 abtsiocb
->iocb_cmpl
= lpfc_sli_abort_fcp_cmpl
;
7443 ret_val
= lpfc_sli_issue_iocb(phba
, pring
->ringno
,
7445 if (ret_val
== IOCB_ERROR
) {
7446 lpfc_sli_release_iocbq(phba
, abtsiocb
);
7456 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
7457 * @phba: Pointer to HBA context object.
7458 * @cmdiocbq: Pointer to command iocb.
7459 * @rspiocbq: Pointer to response iocb.
7461 * This function is the completion handler for iocbs issued using
7462 * lpfc_sli_issue_iocb_wait function. This function is called by the
7463 * ring event handler function without any lock held. This function
7464 * can be called from both worker thread context and interrupt
7465 * context. This function also can be called from other thread which
7466 * cleans up the SLI layer objects.
7467 * This function copy the contents of the response iocb to the
7468 * response iocb memory object provided by the caller of
7469 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
7470 * sleeps for the iocb completion.
7473 lpfc_sli_wake_iocb_wait(struct lpfc_hba
*phba
,
7474 struct lpfc_iocbq
*cmdiocbq
,
7475 struct lpfc_iocbq
*rspiocbq
)
7477 wait_queue_head_t
*pdone_q
;
7478 unsigned long iflags
;
7479 struct lpfc_scsi_buf
*lpfc_cmd
;
7481 spin_lock_irqsave(&phba
->hbalock
, iflags
);
7482 cmdiocbq
->iocb_flag
|= LPFC_IO_WAKE
;
7483 if (cmdiocbq
->context2
&& rspiocbq
)
7484 memcpy(&((struct lpfc_iocbq
*)cmdiocbq
->context2
)->iocb
,
7485 &rspiocbq
->iocb
, sizeof(IOCB_t
));
7487 /* Set the exchange busy flag for task management commands */
7488 if ((cmdiocbq
->iocb_flag
& LPFC_IO_FCP
) &&
7489 !(cmdiocbq
->iocb_flag
& LPFC_IO_LIBDFC
)) {
7490 lpfc_cmd
= container_of(cmdiocbq
, struct lpfc_scsi_buf
,
7492 lpfc_cmd
->exch_busy
= rspiocbq
->iocb_flag
& LPFC_EXCHANGE_BUSY
;
7495 pdone_q
= cmdiocbq
->context_un
.wait_queue
;
7498 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7503 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
7504 * @phba: Pointer to HBA context object..
7505 * @piocbq: Pointer to command iocb.
7506 * @flag: Flag to test.
7508 * This routine grabs the hbalock and then test the iocb_flag to
7509 * see if the passed in flag is set.
7512 * 0 if flag is not set.
7515 lpfc_chk_iocb_flg(struct lpfc_hba
*phba
,
7516 struct lpfc_iocbq
*piocbq
, uint32_t flag
)
7518 unsigned long iflags
;
7521 spin_lock_irqsave(&phba
->hbalock
, iflags
);
7522 ret
= piocbq
->iocb_flag
& flag
;
7523 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7529 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
7530 * @phba: Pointer to HBA context object..
7531 * @pring: Pointer to sli ring.
7532 * @piocb: Pointer to command iocb.
7533 * @prspiocbq: Pointer to response iocb.
7534 * @timeout: Timeout in number of seconds.
7536 * This function issues the iocb to firmware and waits for the
7537 * iocb to complete. If the iocb command is not
7538 * completed within timeout seconds, it returns IOCB_TIMEDOUT.
7539 * Caller should not free the iocb resources if this function
7540 * returns IOCB_TIMEDOUT.
7541 * The function waits for the iocb completion using an
7542 * non-interruptible wait.
7543 * This function will sleep while waiting for iocb completion.
7544 * So, this function should not be called from any context which
7545 * does not allow sleeping. Due to the same reason, this function
7546 * cannot be called with interrupt disabled.
7547 * This function assumes that the iocb completions occur while
7548 * this function sleep. So, this function cannot be called from
7549 * the thread which process iocb completion for this ring.
7550 * This function clears the iocb_flag of the iocb object before
7551 * issuing the iocb and the iocb completion handler sets this
7552 * flag and wakes this thread when the iocb completes.
7553 * The contents of the response iocb will be copied to prspiocbq
7554 * by the completion handler when the command completes.
7555 * This function returns IOCB_SUCCESS when success.
7556 * This function is called with no lock held.
7559 lpfc_sli_issue_iocb_wait(struct lpfc_hba
*phba
,
7560 uint32_t ring_number
,
7561 struct lpfc_iocbq
*piocb
,
7562 struct lpfc_iocbq
*prspiocbq
,
7565 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q
);
7566 long timeleft
, timeout_req
= 0;
7567 int retval
= IOCB_SUCCESS
;
7571 * If the caller has provided a response iocbq buffer, then context2
7572 * is NULL or its an error.
7575 if (piocb
->context2
)
7577 piocb
->context2
= prspiocbq
;
7580 piocb
->iocb_cmpl
= lpfc_sli_wake_iocb_wait
;
7581 piocb
->context_un
.wait_queue
= &done_q
;
7582 piocb
->iocb_flag
&= ~LPFC_IO_WAKE
;
7584 if (phba
->cfg_poll
& DISABLE_FCP_RING_INT
) {
7585 creg_val
= readl(phba
->HCregaddr
);
7586 creg_val
|= (HC_R0INT_ENA
<< LPFC_FCP_RING
);
7587 writel(creg_val
, phba
->HCregaddr
);
7588 readl(phba
->HCregaddr
); /* flush */
7591 retval
= lpfc_sli_issue_iocb(phba
, ring_number
, piocb
, 0);
7592 if (retval
== IOCB_SUCCESS
) {
7593 timeout_req
= timeout
* HZ
;
7594 timeleft
= wait_event_timeout(done_q
,
7595 lpfc_chk_iocb_flg(phba
, piocb
, LPFC_IO_WAKE
),
7598 if (piocb
->iocb_flag
& LPFC_IO_WAKE
) {
7599 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
7600 "0331 IOCB wake signaled\n");
7601 } else if (timeleft
== 0) {
7602 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
7603 "0338 IOCB wait timeout error - no "
7604 "wake response Data x%x\n", timeout
);
7605 retval
= IOCB_TIMEDOUT
;
7607 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
7608 "0330 IOCB wake NOT set, "
7610 timeout
, (timeleft
/ jiffies
));
7611 retval
= IOCB_TIMEDOUT
;
7614 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
7615 "0332 IOCB wait issue failed, Data x%x\n",
7617 retval
= IOCB_ERROR
;
7620 if (phba
->cfg_poll
& DISABLE_FCP_RING_INT
) {
7621 creg_val
= readl(phba
->HCregaddr
);
7622 creg_val
&= ~(HC_R0INT_ENA
<< LPFC_FCP_RING
);
7623 writel(creg_val
, phba
->HCregaddr
);
7624 readl(phba
->HCregaddr
); /* flush */
7628 piocb
->context2
= NULL
;
7630 piocb
->context_un
.wait_queue
= NULL
;
7631 piocb
->iocb_cmpl
= NULL
;
7636 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
7637 * @phba: Pointer to HBA context object.
7638 * @pmboxq: Pointer to driver mailbox object.
7639 * @timeout: Timeout in number of seconds.
7641 * This function issues the mailbox to firmware and waits for the
7642 * mailbox command to complete. If the mailbox command is not
7643 * completed within timeout seconds, it returns MBX_TIMEOUT.
7644 * The function waits for the mailbox completion using an
7645 * interruptible wait. If the thread is woken up due to a
7646 * signal, MBX_TIMEOUT error is returned to the caller. Caller
7647 * should not free the mailbox resources, if this function returns
7649 * This function will sleep while waiting for mailbox completion.
7650 * So, this function should not be called from any context which
7651 * does not allow sleeping. Due to the same reason, this function
7652 * cannot be called with interrupt disabled.
7653 * This function assumes that the mailbox completion occurs while
7654 * this function sleep. So, this function cannot be called from
7655 * the worker thread which processes mailbox completion.
7656 * This function is called in the context of HBA management
7658 * This function returns MBX_SUCCESS when successful.
7659 * This function is called with no lock held.
7662 lpfc_sli_issue_mbox_wait(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmboxq
,
7665 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q
);
7669 /* The caller must leave context1 empty. */
7670 if (pmboxq
->context1
)
7671 return MBX_NOT_FINISHED
;
7673 pmboxq
->mbox_flag
&= ~LPFC_MBX_WAKE
;
7674 /* setup wake call as IOCB callback */
7675 pmboxq
->mbox_cmpl
= lpfc_sli_wake_mbox_wait
;
7676 /* setup context field to pass wait_queue pointer to wake function */
7677 pmboxq
->context1
= &done_q
;
7679 /* now issue the command */
7680 retval
= lpfc_sli_issue_mbox(phba
, pmboxq
, MBX_NOWAIT
);
7682 if (retval
== MBX_BUSY
|| retval
== MBX_SUCCESS
) {
7683 wait_event_interruptible_timeout(done_q
,
7684 pmboxq
->mbox_flag
& LPFC_MBX_WAKE
,
7687 spin_lock_irqsave(&phba
->hbalock
, flag
);
7688 pmboxq
->context1
= NULL
;
7690 * if LPFC_MBX_WAKE flag is set the mailbox is completed
7691 * else do not free the resources.
7693 if (pmboxq
->mbox_flag
& LPFC_MBX_WAKE
)
7694 retval
= MBX_SUCCESS
;
7696 retval
= MBX_TIMEOUT
;
7697 pmboxq
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
7699 spin_unlock_irqrestore(&phba
->hbalock
, flag
);
7706 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
7707 * @phba: Pointer to HBA context.
7709 * This function is called to shutdown the driver's mailbox sub-system.
7710 * It first marks the mailbox sub-system is in a block state to prevent
7711 * the asynchronous mailbox command from issued off the pending mailbox
7712 * command queue. If the mailbox command sub-system shutdown is due to
7713 * HBA error conditions such as EEH or ERATT, this routine shall invoke
7714 * the mailbox sub-system flush routine to forcefully bring down the
7715 * mailbox sub-system. Otherwise, if it is due to normal condition (such
7716 * as with offline or HBA function reset), this routine will wait for the
7717 * outstanding mailbox command to complete before invoking the mailbox
7718 * sub-system flush routine to gracefully bring down mailbox sub-system.
7721 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba
*phba
)
7723 struct lpfc_sli
*psli
= &phba
->sli
;
7724 uint8_t actcmd
= MBX_HEARTBEAT
;
7725 unsigned long timeout
;
7727 spin_lock_irq(&phba
->hbalock
);
7728 psli
->sli_flag
|= LPFC_SLI_ASYNC_MBX_BLK
;
7729 spin_unlock_irq(&phba
->hbalock
);
7731 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
7732 spin_lock_irq(&phba
->hbalock
);
7733 if (phba
->sli
.mbox_active
)
7734 actcmd
= phba
->sli
.mbox_active
->u
.mb
.mbxCommand
;
7735 spin_unlock_irq(&phba
->hbalock
);
7736 /* Determine how long we might wait for the active mailbox
7737 * command to be gracefully completed by firmware.
7739 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
, actcmd
) *
7741 while (phba
->sli
.mbox_active
) {
7742 /* Check active mailbox complete status every 2ms */
7744 if (time_after(jiffies
, timeout
))
7745 /* Timeout, let the mailbox flush routine to
7746 * forcefully release active mailbox command
7751 lpfc_sli_mbox_sys_flush(phba
);
7755 * lpfc_sli_eratt_read - read sli-3 error attention events
7756 * @phba: Pointer to HBA context.
7758 * This function is called to read the SLI3 device error attention registers
7759 * for possible error attention events. The caller must hold the hostlock
7760 * with spin_lock_irq().
7762 * This fucntion returns 1 when there is Error Attention in the Host Attention
7763 * Register and returns 0 otherwise.
7766 lpfc_sli_eratt_read(struct lpfc_hba
*phba
)
7770 /* Read chip Host Attention (HA) register */
7771 ha_copy
= readl(phba
->HAregaddr
);
7772 if (ha_copy
& HA_ERATT
) {
7773 /* Read host status register to retrieve error event */
7774 lpfc_sli_read_hs(phba
);
7776 /* Check if there is a deferred error condition is active */
7777 if ((HS_FFER1
& phba
->work_hs
) &&
7778 ((HS_FFER2
| HS_FFER3
| HS_FFER4
| HS_FFER5
|
7779 HS_FFER6
| HS_FFER7
) & phba
->work_hs
)) {
7780 phba
->hba_flag
|= DEFER_ERATT
;
7781 /* Clear all interrupt enable conditions */
7782 writel(0, phba
->HCregaddr
);
7783 readl(phba
->HCregaddr
);
7786 /* Set the driver HA work bitmap */
7787 phba
->work_ha
|= HA_ERATT
;
7788 /* Indicate polling handles this ERATT */
7789 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
7796 * lpfc_sli4_eratt_read - read sli-4 error attention events
7797 * @phba: Pointer to HBA context.
7799 * This function is called to read the SLI4 device error attention registers
7800 * for possible error attention events. The caller must hold the hostlock
7801 * with spin_lock_irq().
7803 * This fucntion returns 1 when there is Error Attention in the Host Attention
7804 * Register and returns 0 otherwise.
7807 lpfc_sli4_eratt_read(struct lpfc_hba
*phba
)
7809 uint32_t uerr_sta_hi
, uerr_sta_lo
;
7811 /* For now, use the SLI4 device internal unrecoverable error
7812 * registers for error attention. This can be changed later.
7814 uerr_sta_lo
= readl(phba
->sli4_hba
.UERRLOregaddr
);
7815 uerr_sta_hi
= readl(phba
->sli4_hba
.UERRHIregaddr
);
7816 if ((~phba
->sli4_hba
.ue_mask_lo
& uerr_sta_lo
) ||
7817 (~phba
->sli4_hba
.ue_mask_hi
& uerr_sta_hi
)) {
7818 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7819 "1423 HBA Unrecoverable error: "
7820 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
7821 "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n",
7822 uerr_sta_lo
, uerr_sta_hi
,
7823 phba
->sli4_hba
.ue_mask_lo
,
7824 phba
->sli4_hba
.ue_mask_hi
);
7825 phba
->work_status
[0] = uerr_sta_lo
;
7826 phba
->work_status
[1] = uerr_sta_hi
;
7827 /* Set the driver HA work bitmap */
7828 phba
->work_ha
|= HA_ERATT
;
7829 /* Indicate polling handles this ERATT */
7830 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
7837 * lpfc_sli_check_eratt - check error attention events
7838 * @phba: Pointer to HBA context.
7840 * This function is called from timer soft interrupt context to check HBA's
7841 * error attention register bit for error attention events.
7843 * This fucntion returns 1 when there is Error Attention in the Host Attention
7844 * Register and returns 0 otherwise.
7847 lpfc_sli_check_eratt(struct lpfc_hba
*phba
)
7851 /* If somebody is waiting to handle an eratt, don't process it
7852 * here. The brdkill function will do this.
7854 if (phba
->link_flag
& LS_IGNORE_ERATT
)
7857 /* Check if interrupt handler handles this ERATT */
7858 spin_lock_irq(&phba
->hbalock
);
7859 if (phba
->hba_flag
& HBA_ERATT_HANDLED
) {
7860 /* Interrupt handler has handled ERATT */
7861 spin_unlock_irq(&phba
->hbalock
);
7866 * If there is deferred error attention, do not check for error
7869 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
7870 spin_unlock_irq(&phba
->hbalock
);
7874 /* If PCI channel is offline, don't process it */
7875 if (unlikely(pci_channel_offline(phba
->pcidev
))) {
7876 spin_unlock_irq(&phba
->hbalock
);
7880 switch (phba
->sli_rev
) {
7883 /* Read chip Host Attention (HA) register */
7884 ha_copy
= lpfc_sli_eratt_read(phba
);
7887 /* Read devcie Uncoverable Error (UERR) registers */
7888 ha_copy
= lpfc_sli4_eratt_read(phba
);
7891 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7892 "0299 Invalid SLI revision (%d)\n",
7897 spin_unlock_irq(&phba
->hbalock
);
7903 * lpfc_intr_state_check - Check device state for interrupt handling
7904 * @phba: Pointer to HBA context.
7906 * This inline routine checks whether a device or its PCI slot is in a state
7907 * that the interrupt should be handled.
7909 * This function returns 0 if the device or the PCI slot is in a state that
7910 * interrupt should be handled, otherwise -EIO.
7913 lpfc_intr_state_check(struct lpfc_hba
*phba
)
7915 /* If the pci channel is offline, ignore all the interrupts */
7916 if (unlikely(pci_channel_offline(phba
->pcidev
)))
7919 /* Update device level interrupt statistics */
7920 phba
->sli
.slistat
.sli_intr
++;
7922 /* Ignore all interrupts during initialization. */
7923 if (unlikely(phba
->link_state
< LPFC_LINK_DOWN
))
7930 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
7931 * @irq: Interrupt number.
7932 * @dev_id: The device context pointer.
7934 * This function is directly called from the PCI layer as an interrupt
7935 * service routine when device with SLI-3 interface spec is enabled with
7936 * MSI-X multi-message interrupt mode and there are slow-path events in
7937 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
7938 * interrupt mode, this function is called as part of the device-level
7939 * interrupt handler. When the PCI slot is in error recovery or the HBA
7940 * is undergoing initialization, the interrupt handler will not process
7941 * the interrupt. The link attention and ELS ring attention events are
7942 * handled by the worker thread. The interrupt handler signals the worker
7943 * thread and returns for these events. This function is called without
7944 * any lock held. It gets the hbalock to access and update SLI data
7947 * This function returns IRQ_HANDLED when interrupt is handled else it
7951 lpfc_sli_sp_intr_handler(int irq
, void *dev_id
)
7953 struct lpfc_hba
*phba
;
7954 uint32_t ha_copy
, hc_copy
;
7955 uint32_t work_ha_copy
;
7956 unsigned long status
;
7957 unsigned long iflag
;
7960 MAILBOX_t
*mbox
, *pmbox
;
7961 struct lpfc_vport
*vport
;
7962 struct lpfc_nodelist
*ndlp
;
7963 struct lpfc_dmabuf
*mp
;
7968 * Get the driver's phba structure from the dev_id and
7969 * assume the HBA is not interrupting.
7971 phba
= (struct lpfc_hba
*)dev_id
;
7973 if (unlikely(!phba
))
7977 * Stuff needs to be attented to when this function is invoked as an
7978 * individual interrupt handler in MSI-X multi-message interrupt mode
7980 if (phba
->intr_type
== MSIX
) {
7981 /* Check device state for handling interrupt */
7982 if (lpfc_intr_state_check(phba
))
7984 /* Need to read HA REG for slow-path events */
7985 spin_lock_irqsave(&phba
->hbalock
, iflag
);
7986 ha_copy
= readl(phba
->HAregaddr
);
7987 /* If somebody is waiting to handle an eratt don't process it
7988 * here. The brdkill function will do this.
7990 if (phba
->link_flag
& LS_IGNORE_ERATT
)
7991 ha_copy
&= ~HA_ERATT
;
7992 /* Check the need for handling ERATT in interrupt handler */
7993 if (ha_copy
& HA_ERATT
) {
7994 if (phba
->hba_flag
& HBA_ERATT_HANDLED
)
7995 /* ERATT polling has handled ERATT */
7996 ha_copy
&= ~HA_ERATT
;
7998 /* Indicate interrupt handler handles ERATT */
7999 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
8003 * If there is deferred error attention, do not check for any
8006 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
8007 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8011 /* Clear up only attention source related to slow-path */
8012 hc_copy
= readl(phba
->HCregaddr
);
8013 writel(hc_copy
& ~(HC_MBINT_ENA
| HC_R2INT_ENA
|
8014 HC_LAINT_ENA
| HC_ERINT_ENA
),
8016 writel((ha_copy
& (HA_MBATT
| HA_R2_CLR_MSK
)),
8018 writel(hc_copy
, phba
->HCregaddr
);
8019 readl(phba
->HAregaddr
); /* flush */
8020 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8022 ha_copy
= phba
->ha_copy
;
8024 work_ha_copy
= ha_copy
& phba
->work_ha_mask
;
8027 if (work_ha_copy
& HA_LATT
) {
8028 if (phba
->sli
.sli_flag
& LPFC_PROCESS_LA
) {
8030 * Turn off Link Attention interrupts
8031 * until CLEAR_LA done
8033 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8034 phba
->sli
.sli_flag
&= ~LPFC_PROCESS_LA
;
8035 control
= readl(phba
->HCregaddr
);
8036 control
&= ~HC_LAINT_ENA
;
8037 writel(control
, phba
->HCregaddr
);
8038 readl(phba
->HCregaddr
); /* flush */
8039 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8042 work_ha_copy
&= ~HA_LATT
;
8045 if (work_ha_copy
& ~(HA_ERATT
| HA_MBATT
| HA_LATT
)) {
8047 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
8048 * the only slow ring.
8050 status
= (work_ha_copy
&
8051 (HA_RXMASK
<< (4*LPFC_ELS_RING
)));
8052 status
>>= (4*LPFC_ELS_RING
);
8053 if (status
& HA_RXMASK
) {
8054 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8055 control
= readl(phba
->HCregaddr
);
8057 lpfc_debugfs_slow_ring_trc(phba
,
8058 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
8060 (uint32_t)phba
->sli
.slistat
.sli_intr
);
8062 if (control
& (HC_R0INT_ENA
<< LPFC_ELS_RING
)) {
8063 lpfc_debugfs_slow_ring_trc(phba
,
8065 "pwork:x%x hawork:x%x wait:x%x",
8066 phba
->work_ha
, work_ha_copy
,
8067 (uint32_t)((unsigned long)
8068 &phba
->work_waitq
));
8071 ~(HC_R0INT_ENA
<< LPFC_ELS_RING
);
8072 writel(control
, phba
->HCregaddr
);
8073 readl(phba
->HCregaddr
); /* flush */
8076 lpfc_debugfs_slow_ring_trc(phba
,
8077 "ISR slow ring: pwork:"
8078 "x%x hawork:x%x wait:x%x",
8079 phba
->work_ha
, work_ha_copy
,
8080 (uint32_t)((unsigned long)
8081 &phba
->work_waitq
));
8083 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8086 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8087 if (work_ha_copy
& HA_ERATT
) {
8088 lpfc_sli_read_hs(phba
);
8090 * Check if there is a deferred error condition
8093 if ((HS_FFER1
& phba
->work_hs
) &&
8094 ((HS_FFER2
| HS_FFER3
| HS_FFER4
| HS_FFER5
|
8095 HS_FFER6
| HS_FFER7
) & phba
->work_hs
)) {
8096 phba
->hba_flag
|= DEFER_ERATT
;
8097 /* Clear all interrupt enable conditions */
8098 writel(0, phba
->HCregaddr
);
8099 readl(phba
->HCregaddr
);
8103 if ((work_ha_copy
& HA_MBATT
) && (phba
->sli
.mbox_active
)) {
8104 pmb
= phba
->sli
.mbox_active
;
8109 /* First check out the status word */
8110 lpfc_sli_pcimem_bcopy(mbox
, pmbox
, sizeof(uint32_t));
8111 if (pmbox
->mbxOwner
!= OWN_HOST
) {
8112 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8114 * Stray Mailbox Interrupt, mbxCommand <cmd>
8115 * mbxStatus <status>
8117 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
|
8119 "(%d):0304 Stray Mailbox "
8120 "Interrupt mbxCommand x%x "
8122 (vport
? vport
->vpi
: 0),
8125 /* clear mailbox attention bit */
8126 work_ha_copy
&= ~HA_MBATT
;
8128 phba
->sli
.mbox_active
= NULL
;
8129 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8130 phba
->last_completion_time
= jiffies
;
8131 del_timer(&phba
->sli
.mbox_tmo
);
8132 if (pmb
->mbox_cmpl
) {
8133 lpfc_sli_pcimem_bcopy(mbox
, pmbox
,
8136 if (pmb
->mbox_flag
& LPFC_MBX_IMED_UNREG
) {
8137 pmb
->mbox_flag
&= ~LPFC_MBX_IMED_UNREG
;
8139 lpfc_debugfs_disc_trc(vport
,
8140 LPFC_DISC_TRC_MBOX_VPORT
,
8142 "status:x%x rpi:x%x",
8143 (uint32_t)pmbox
->mbxStatus
,
8144 pmbox
->un
.varWords
[0], 0);
8146 if (!pmbox
->mbxStatus
) {
8147 mp
= (struct lpfc_dmabuf
*)
8149 ndlp
= (struct lpfc_nodelist
*)
8152 /* Reg_LOGIN of dflt RPI was
8153 * successful. new lets get
8154 * rid of the RPI using the
8157 lpfc_unreg_login(phba
,
8159 pmbox
->un
.varWords
[0],
8162 lpfc_mbx_cmpl_dflt_rpi
;
8164 pmb
->context2
= ndlp
;
8166 rc
= lpfc_sli_issue_mbox(phba
,
8170 lpfc_printf_log(phba
,
8173 "0350 rc should have"
8175 if (rc
!= MBX_NOT_FINISHED
)
8176 goto send_current_mbox
;
8180 &phba
->pport
->work_port_lock
,
8182 phba
->pport
->work_port_events
&=
8184 spin_unlock_irqrestore(
8185 &phba
->pport
->work_port_lock
,
8187 lpfc_mbox_cmpl_put(phba
, pmb
);
8190 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8192 if ((work_ha_copy
& HA_MBATT
) &&
8193 (phba
->sli
.mbox_active
== NULL
)) {
8195 /* Process next mailbox command if there is one */
8197 rc
= lpfc_sli_issue_mbox(phba
, NULL
,
8199 } while (rc
== MBX_NOT_FINISHED
);
8200 if (rc
!= MBX_SUCCESS
)
8201 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
|
8202 LOG_SLI
, "0349 rc should be "
8206 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8207 phba
->work_ha
|= work_ha_copy
;
8208 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8209 lpfc_worker_wake_up(phba
);
8213 } /* lpfc_sli_sp_intr_handler */
8216 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
8217 * @irq: Interrupt number.
8218 * @dev_id: The device context pointer.
8220 * This function is directly called from the PCI layer as an interrupt
8221 * service routine when device with SLI-3 interface spec is enabled with
8222 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
8223 * ring event in the HBA. However, when the device is enabled with either
8224 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
8225 * device-level interrupt handler. When the PCI slot is in error recovery
8226 * or the HBA is undergoing initialization, the interrupt handler will not
8227 * process the interrupt. The SCSI FCP fast-path ring event are handled in
8228 * the intrrupt context. This function is called without any lock held.
8229 * It gets the hbalock to access and update SLI data structures.
8231 * This function returns IRQ_HANDLED when interrupt is handled else it
8235 lpfc_sli_fp_intr_handler(int irq
, void *dev_id
)
8237 struct lpfc_hba
*phba
;
8239 unsigned long status
;
8240 unsigned long iflag
;
8242 /* Get the driver's phba structure from the dev_id and
8243 * assume the HBA is not interrupting.
8245 phba
= (struct lpfc_hba
*) dev_id
;
8247 if (unlikely(!phba
))
8251 * Stuff needs to be attented to when this function is invoked as an
8252 * individual interrupt handler in MSI-X multi-message interrupt mode
8254 if (phba
->intr_type
== MSIX
) {
8255 /* Check device state for handling interrupt */
8256 if (lpfc_intr_state_check(phba
))
8258 /* Need to read HA REG for FCP ring and other ring events */
8259 ha_copy
= readl(phba
->HAregaddr
);
8260 /* Clear up only attention source related to fast-path */
8261 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8263 * If there is deferred error attention, do not check for
8266 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
8267 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8270 writel((ha_copy
& (HA_R0_CLR_MSK
| HA_R1_CLR_MSK
)),
8272 readl(phba
->HAregaddr
); /* flush */
8273 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8275 ha_copy
= phba
->ha_copy
;
8278 * Process all events on FCP ring. Take the optimized path for FCP IO.
8280 ha_copy
&= ~(phba
->work_ha_mask
);
8282 status
= (ha_copy
& (HA_RXMASK
<< (4*LPFC_FCP_RING
)));
8283 status
>>= (4*LPFC_FCP_RING
);
8284 if (status
& HA_RXMASK
)
8285 lpfc_sli_handle_fast_ring_event(phba
,
8286 &phba
->sli
.ring
[LPFC_FCP_RING
],
8289 if (phba
->cfg_multi_ring_support
== 2) {
8291 * Process all events on extra ring. Take the optimized path
8292 * for extra ring IO.
8294 status
= (ha_copy
& (HA_RXMASK
<< (4*LPFC_EXTRA_RING
)));
8295 status
>>= (4*LPFC_EXTRA_RING
);
8296 if (status
& HA_RXMASK
) {
8297 lpfc_sli_handle_fast_ring_event(phba
,
8298 &phba
->sli
.ring
[LPFC_EXTRA_RING
],
8303 } /* lpfc_sli_fp_intr_handler */
8306 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
8307 * @irq: Interrupt number.
8308 * @dev_id: The device context pointer.
8310 * This function is the HBA device-level interrupt handler to device with
8311 * SLI-3 interface spec, called from the PCI layer when either MSI or
8312 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
8313 * requires driver attention. This function invokes the slow-path interrupt
8314 * attention handling function and fast-path interrupt attention handling
8315 * function in turn to process the relevant HBA attention events. This
8316 * function is called without any lock held. It gets the hbalock to access
8317 * and update SLI data structures.
8319 * This function returns IRQ_HANDLED when interrupt is handled, else it
8323 lpfc_sli_intr_handler(int irq
, void *dev_id
)
8325 struct lpfc_hba
*phba
;
8326 irqreturn_t sp_irq_rc
, fp_irq_rc
;
8327 unsigned long status1
, status2
;
8331 * Get the driver's phba structure from the dev_id and
8332 * assume the HBA is not interrupting.
8334 phba
= (struct lpfc_hba
*) dev_id
;
8336 if (unlikely(!phba
))
8339 /* Check device state for handling interrupt */
8340 if (lpfc_intr_state_check(phba
))
8343 spin_lock(&phba
->hbalock
);
8344 phba
->ha_copy
= readl(phba
->HAregaddr
);
8345 if (unlikely(!phba
->ha_copy
)) {
8346 spin_unlock(&phba
->hbalock
);
8348 } else if (phba
->ha_copy
& HA_ERATT
) {
8349 if (phba
->hba_flag
& HBA_ERATT_HANDLED
)
8350 /* ERATT polling has handled ERATT */
8351 phba
->ha_copy
&= ~HA_ERATT
;
8353 /* Indicate interrupt handler handles ERATT */
8354 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
8358 * If there is deferred error attention, do not check for any interrupt.
8360 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
8361 spin_unlock_irq(&phba
->hbalock
);
8365 /* Clear attention sources except link and error attentions */
8366 hc_copy
= readl(phba
->HCregaddr
);
8367 writel(hc_copy
& ~(HC_MBINT_ENA
| HC_R0INT_ENA
| HC_R1INT_ENA
8368 | HC_R2INT_ENA
| HC_LAINT_ENA
| HC_ERINT_ENA
),
8370 writel((phba
->ha_copy
& ~(HA_LATT
| HA_ERATT
)), phba
->HAregaddr
);
8371 writel(hc_copy
, phba
->HCregaddr
);
8372 readl(phba
->HAregaddr
); /* flush */
8373 spin_unlock(&phba
->hbalock
);
8376 * Invokes slow-path host attention interrupt handling as appropriate.
8379 /* status of events with mailbox and link attention */
8380 status1
= phba
->ha_copy
& (HA_MBATT
| HA_LATT
| HA_ERATT
);
8382 /* status of events with ELS ring */
8383 status2
= (phba
->ha_copy
& (HA_RXMASK
<< (4*LPFC_ELS_RING
)));
8384 status2
>>= (4*LPFC_ELS_RING
);
8386 if (status1
|| (status2
& HA_RXMASK
))
8387 sp_irq_rc
= lpfc_sli_sp_intr_handler(irq
, dev_id
);
8389 sp_irq_rc
= IRQ_NONE
;
8392 * Invoke fast-path host attention interrupt handling as appropriate.
8395 /* status of events with FCP ring */
8396 status1
= (phba
->ha_copy
& (HA_RXMASK
<< (4*LPFC_FCP_RING
)));
8397 status1
>>= (4*LPFC_FCP_RING
);
8399 /* status of events with extra ring */
8400 if (phba
->cfg_multi_ring_support
== 2) {
8401 status2
= (phba
->ha_copy
& (HA_RXMASK
<< (4*LPFC_EXTRA_RING
)));
8402 status2
>>= (4*LPFC_EXTRA_RING
);
8406 if ((status1
& HA_RXMASK
) || (status2
& HA_RXMASK
))
8407 fp_irq_rc
= lpfc_sli_fp_intr_handler(irq
, dev_id
);
8409 fp_irq_rc
= IRQ_NONE
;
8411 /* Return device-level interrupt handling status */
8412 return (sp_irq_rc
== IRQ_HANDLED
) ? sp_irq_rc
: fp_irq_rc
;
8413 } /* lpfc_sli_intr_handler */
8416 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
8417 * @phba: pointer to lpfc hba data structure.
8419 * This routine is invoked by the worker thread to process all the pending
8420 * SLI4 FCP abort XRI events.
8422 void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba
*phba
)
8424 struct lpfc_cq_event
*cq_event
;
8426 /* First, declare the fcp xri abort event has been handled */
8427 spin_lock_irq(&phba
->hbalock
);
8428 phba
->hba_flag
&= ~FCP_XRI_ABORT_EVENT
;
8429 spin_unlock_irq(&phba
->hbalock
);
8430 /* Now, handle all the fcp xri abort events */
8431 while (!list_empty(&phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
)) {
8432 /* Get the first event from the head of the event queue */
8433 spin_lock_irq(&phba
->hbalock
);
8434 list_remove_head(&phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
,
8435 cq_event
, struct lpfc_cq_event
, list
);
8436 spin_unlock_irq(&phba
->hbalock
);
8437 /* Notify aborted XRI for FCP work queue */
8438 lpfc_sli4_fcp_xri_aborted(phba
, &cq_event
->cqe
.wcqe_axri
);
8439 /* Free the event processed back to the free pool */
8440 lpfc_sli4_cq_event_release(phba
, cq_event
);
8445 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
8446 * @phba: pointer to lpfc hba data structure.
8448 * This routine is invoked by the worker thread to process all the pending
8449 * SLI4 els abort xri events.
8451 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba
*phba
)
8453 struct lpfc_cq_event
*cq_event
;
8455 /* First, declare the els xri abort event has been handled */
8456 spin_lock_irq(&phba
->hbalock
);
8457 phba
->hba_flag
&= ~ELS_XRI_ABORT_EVENT
;
8458 spin_unlock_irq(&phba
->hbalock
);
8459 /* Now, handle all the els xri abort events */
8460 while (!list_empty(&phba
->sli4_hba
.sp_els_xri_aborted_work_queue
)) {
8461 /* Get the first event from the head of the event queue */
8462 spin_lock_irq(&phba
->hbalock
);
8463 list_remove_head(&phba
->sli4_hba
.sp_els_xri_aborted_work_queue
,
8464 cq_event
, struct lpfc_cq_event
, list
);
8465 spin_unlock_irq(&phba
->hbalock
);
8466 /* Notify aborted XRI for ELS work queue */
8467 lpfc_sli4_els_xri_aborted(phba
, &cq_event
->cqe
.wcqe_axri
);
8468 /* Free the event processed back to the free pool */
8469 lpfc_sli4_cq_event_release(phba
, cq_event
);
8474 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
8475 * @phba: pointer to lpfc hba data structure
8476 * @pIocbIn: pointer to the rspiocbq
8477 * @pIocbOut: pointer to the cmdiocbq
8478 * @wcqe: pointer to the complete wcqe
8480 * This routine transfers the fields of a command iocbq to a response iocbq
8481 * by copying all the IOCB fields from command iocbq and transferring the
8482 * completion status information from the complete wcqe.
8485 lpfc_sli4_iocb_param_transfer(struct lpfc_hba
*phba
,
8486 struct lpfc_iocbq
*pIocbIn
,
8487 struct lpfc_iocbq
*pIocbOut
,
8488 struct lpfc_wcqe_complete
*wcqe
)
8490 unsigned long iflags
;
8491 size_t offset
= offsetof(struct lpfc_iocbq
, iocb
);
8493 memcpy((char *)pIocbIn
+ offset
, (char *)pIocbOut
+ offset
,
8494 sizeof(struct lpfc_iocbq
) - offset
);
8495 /* Map WCQE parameters into irspiocb parameters */
8496 pIocbIn
->iocb
.ulpStatus
= bf_get(lpfc_wcqe_c_status
, wcqe
);
8497 if (pIocbOut
->iocb_flag
& LPFC_IO_FCP
)
8498 if (pIocbIn
->iocb
.ulpStatus
== IOSTAT_FCP_RSP_ERROR
)
8499 pIocbIn
->iocb
.un
.fcpi
.fcpi_parm
=
8500 pIocbOut
->iocb
.un
.fcpi
.fcpi_parm
-
8501 wcqe
->total_data_placed
;
8503 pIocbIn
->iocb
.un
.ulpWord
[4] = wcqe
->parameter
;
8505 pIocbIn
->iocb
.un
.ulpWord
[4] = wcqe
->parameter
;
8506 pIocbIn
->iocb
.un
.genreq64
.bdl
.bdeSize
= wcqe
->total_data_placed
;
8509 /* Pick up HBA exchange busy condition */
8510 if (bf_get(lpfc_wcqe_c_xb
, wcqe
)) {
8511 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8512 pIocbIn
->iocb_flag
|= LPFC_EXCHANGE_BUSY
;
8513 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8518 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
8519 * @phba: Pointer to HBA context object.
8520 * @wcqe: Pointer to work-queue completion queue entry.
8522 * This routine handles an ELS work-queue completion event and construct
8523 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
8524 * discovery engine to handle.
8526 * Return: Pointer to the receive IOCBQ, NULL otherwise.
8528 static struct lpfc_iocbq
*
8529 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba
*phba
,
8530 struct lpfc_iocbq
*irspiocbq
)
8532 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
8533 struct lpfc_iocbq
*cmdiocbq
;
8534 struct lpfc_wcqe_complete
*wcqe
;
8535 unsigned long iflags
;
8537 wcqe
= &irspiocbq
->cq_event
.cqe
.wcqe_cmpl
;
8538 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8539 pring
->stats
.iocb_event
++;
8540 /* Look up the ELS command IOCB and create pseudo response IOCB */
8541 cmdiocbq
= lpfc_sli_iocbq_lookup_by_tag(phba
, pring
,
8542 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
8543 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8545 if (unlikely(!cmdiocbq
)) {
8546 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
8547 "0386 ELS complete with no corresponding "
8548 "cmdiocb: iotag (%d)\n",
8549 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
8550 lpfc_sli_release_iocbq(phba
, irspiocbq
);
8554 /* Fake the irspiocbq and copy necessary response information */
8555 lpfc_sli4_iocb_param_transfer(phba
, irspiocbq
, cmdiocbq
, wcqe
);
8561 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
8562 * @phba: Pointer to HBA context object.
8563 * @cqe: Pointer to mailbox completion queue entry.
8565 * This routine process a mailbox completion queue entry with asynchrous
8568 * Return: true if work posted to worker thread, otherwise false.
8571 lpfc_sli4_sp_handle_async_event(struct lpfc_hba
*phba
, struct lpfc_mcqe
*mcqe
)
8573 struct lpfc_cq_event
*cq_event
;
8574 unsigned long iflags
;
8576 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
8577 "0392 Async Event: word0:x%x, word1:x%x, "
8578 "word2:x%x, word3:x%x\n", mcqe
->word0
,
8579 mcqe
->mcqe_tag0
, mcqe
->mcqe_tag1
, mcqe
->trailer
);
8581 /* Allocate a new internal CQ_EVENT entry */
8582 cq_event
= lpfc_sli4_cq_event_alloc(phba
);
8584 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
8585 "0394 Failed to allocate CQ_EVENT entry\n");
8589 /* Move the CQE into an asynchronous event entry */
8590 memcpy(&cq_event
->cqe
, mcqe
, sizeof(struct lpfc_mcqe
));
8591 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8592 list_add_tail(&cq_event
->list
, &phba
->sli4_hba
.sp_asynce_work_queue
);
8593 /* Set the async event flag */
8594 phba
->hba_flag
|= ASYNC_EVENT
;
8595 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8601 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
8602 * @phba: Pointer to HBA context object.
8603 * @cqe: Pointer to mailbox completion queue entry.
8605 * This routine process a mailbox completion queue entry with mailbox
8608 * Return: true if work posted to worker thread, otherwise false.
8611 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba
*phba
, struct lpfc_mcqe
*mcqe
)
8613 uint32_t mcqe_status
;
8614 MAILBOX_t
*mbox
, *pmbox
;
8615 struct lpfc_mqe
*mqe
;
8616 struct lpfc_vport
*vport
;
8617 struct lpfc_nodelist
*ndlp
;
8618 struct lpfc_dmabuf
*mp
;
8619 unsigned long iflags
;
8621 bool workposted
= false;
8624 /* If not a mailbox complete MCQE, out by checking mailbox consume */
8625 if (!bf_get(lpfc_trailer_completed
, mcqe
))
8626 goto out_no_mqe_complete
;
8628 /* Get the reference to the active mbox command */
8629 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8630 pmb
= phba
->sli
.mbox_active
;
8631 if (unlikely(!pmb
)) {
8632 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
8633 "1832 No pending MBOX command to handle\n");
8634 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8635 goto out_no_mqe_complete
;
8637 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8639 pmbox
= (MAILBOX_t
*)&pmb
->u
.mqe
;
8643 /* Reset heartbeat timer */
8644 phba
->last_completion_time
= jiffies
;
8645 del_timer(&phba
->sli
.mbox_tmo
);
8647 /* Move mbox data to caller's mailbox region, do endian swapping */
8648 if (pmb
->mbox_cmpl
&& mbox
)
8649 lpfc_sli_pcimem_bcopy(mbox
, mqe
, sizeof(struct lpfc_mqe
));
8650 /* Set the mailbox status with SLI4 range 0x4000 */
8651 mcqe_status
= bf_get(lpfc_mcqe_status
, mcqe
);
8652 if (mcqe_status
!= MB_CQE_STATUS_SUCCESS
)
8653 bf_set(lpfc_mqe_status
, mqe
,
8654 (LPFC_MBX_ERROR_RANGE
| mcqe_status
));
8656 if (pmb
->mbox_flag
& LPFC_MBX_IMED_UNREG
) {
8657 pmb
->mbox_flag
&= ~LPFC_MBX_IMED_UNREG
;
8658 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_MBOX_VPORT
,
8659 "MBOX dflt rpi: status:x%x rpi:x%x",
8661 pmbox
->un
.varWords
[0], 0);
8662 if (mcqe_status
== MB_CQE_STATUS_SUCCESS
) {
8663 mp
= (struct lpfc_dmabuf
*)(pmb
->context1
);
8664 ndlp
= (struct lpfc_nodelist
*)pmb
->context2
;
8665 /* Reg_LOGIN of dflt RPI was successful. Now lets get
8666 * RID of the PPI using the same mbox buffer.
8668 lpfc_unreg_login(phba
, vport
->vpi
,
8669 pmbox
->un
.varWords
[0], pmb
);
8670 pmb
->mbox_cmpl
= lpfc_mbx_cmpl_dflt_rpi
;
8672 pmb
->context2
= ndlp
;
8674 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
8676 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
|
8677 LOG_SLI
, "0385 rc should "
8678 "have been MBX_BUSY\n");
8679 if (rc
!= MBX_NOT_FINISHED
)
8680 goto send_current_mbox
;
8683 spin_lock_irqsave(&phba
->pport
->work_port_lock
, iflags
);
8684 phba
->pport
->work_port_events
&= ~WORKER_MBOX_TMO
;
8685 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, iflags
);
8687 /* There is mailbox completion work to do */
8688 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8689 __lpfc_mbox_cmpl_put(phba
, pmb
);
8690 phba
->work_ha
|= HA_MBATT
;
8691 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8695 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8696 /* Release the mailbox command posting token */
8697 phba
->sli
.sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
8698 /* Setting active mailbox pointer need to be in sync to flag clear */
8699 phba
->sli
.mbox_active
= NULL
;
8700 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8701 /* Wake up worker thread to post the next pending mailbox command */
8702 lpfc_worker_wake_up(phba
);
8703 out_no_mqe_complete
:
8704 if (bf_get(lpfc_trailer_consumed
, mcqe
))
8705 lpfc_sli4_mq_release(phba
->sli4_hba
.mbx_wq
);
8710 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
8711 * @phba: Pointer to HBA context object.
8712 * @cqe: Pointer to mailbox completion queue entry.
8714 * This routine process a mailbox completion queue entry, it invokes the
8715 * proper mailbox complete handling or asynchrous event handling routine
8716 * according to the MCQE's async bit.
8718 * Return: true if work posted to worker thread, otherwise false.
8721 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba
*phba
, struct lpfc_cqe
*cqe
)
8723 struct lpfc_mcqe mcqe
;
8726 /* Copy the mailbox MCQE and convert endian order as needed */
8727 lpfc_sli_pcimem_bcopy(cqe
, &mcqe
, sizeof(struct lpfc_mcqe
));
8729 /* Invoke the proper event handling routine */
8730 if (!bf_get(lpfc_trailer_async
, &mcqe
))
8731 workposted
= lpfc_sli4_sp_handle_mbox_event(phba
, &mcqe
);
8733 workposted
= lpfc_sli4_sp_handle_async_event(phba
, &mcqe
);
8738 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
8739 * @phba: Pointer to HBA context object.
8740 * @wcqe: Pointer to work-queue completion queue entry.
8742 * This routine handles an ELS work-queue completion event.
8744 * Return: true if work posted to worker thread, otherwise false.
8747 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba
*phba
,
8748 struct lpfc_wcqe_complete
*wcqe
)
8750 struct lpfc_iocbq
*irspiocbq
;
8751 unsigned long iflags
;
8753 /* Get an irspiocbq for later ELS response processing use */
8754 irspiocbq
= lpfc_sli_get_iocbq(phba
);
8756 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
8757 "0387 Failed to allocate an iocbq\n");
8761 /* Save off the slow-path queue event for work thread to process */
8762 memcpy(&irspiocbq
->cq_event
.cqe
.wcqe_cmpl
, wcqe
, sizeof(*wcqe
));
8763 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8764 list_add_tail(&irspiocbq
->cq_event
.list
,
8765 &phba
->sli4_hba
.sp_queue_event
);
8766 phba
->hba_flag
|= HBA_SP_QUEUE_EVT
;
8767 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8773 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
8774 * @phba: Pointer to HBA context object.
8775 * @wcqe: Pointer to work-queue completion queue entry.
8777 * This routine handles slow-path WQ entry comsumed event by invoking the
8778 * proper WQ release routine to the slow-path WQ.
8781 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba
*phba
,
8782 struct lpfc_wcqe_release
*wcqe
)
8784 /* Check for the slow-path ELS work queue */
8785 if (bf_get(lpfc_wcqe_r_wq_id
, wcqe
) == phba
->sli4_hba
.els_wq
->queue_id
)
8786 lpfc_sli4_wq_release(phba
->sli4_hba
.els_wq
,
8787 bf_get(lpfc_wcqe_r_wqe_index
, wcqe
));
8789 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
8790 "2579 Slow-path wqe consume event carries "
8791 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
8792 bf_get(lpfc_wcqe_r_wqe_index
, wcqe
),
8793 phba
->sli4_hba
.els_wq
->queue_id
);
8797 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
8798 * @phba: Pointer to HBA context object.
8799 * @cq: Pointer to a WQ completion queue.
8800 * @wcqe: Pointer to work-queue completion queue entry.
8802 * This routine handles an XRI abort event.
8804 * Return: true if work posted to worker thread, otherwise false.
8807 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba
*phba
,
8808 struct lpfc_queue
*cq
,
8809 struct sli4_wcqe_xri_aborted
*wcqe
)
8811 bool workposted
= false;
8812 struct lpfc_cq_event
*cq_event
;
8813 unsigned long iflags
;
8815 /* Allocate a new internal CQ_EVENT entry */
8816 cq_event
= lpfc_sli4_cq_event_alloc(phba
);
8818 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
8819 "0602 Failed to allocate CQ_EVENT entry\n");
8823 /* Move the CQE into the proper xri abort event list */
8824 memcpy(&cq_event
->cqe
, wcqe
, sizeof(struct sli4_wcqe_xri_aborted
));
8825 switch (cq
->subtype
) {
8827 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8828 list_add_tail(&cq_event
->list
,
8829 &phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
);
8830 /* Set the fcp xri abort event flag */
8831 phba
->hba_flag
|= FCP_XRI_ABORT_EVENT
;
8832 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8836 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8837 list_add_tail(&cq_event
->list
,
8838 &phba
->sli4_hba
.sp_els_xri_aborted_work_queue
);
8839 /* Set the els xri abort event flag */
8840 phba
->hba_flag
|= ELS_XRI_ABORT_EVENT
;
8841 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8845 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
8846 "0603 Invalid work queue CQE subtype (x%x)\n",
8855 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
8856 * @phba: Pointer to HBA context object.
8857 * @rcqe: Pointer to receive-queue completion queue entry.
8859 * This routine process a receive-queue completion queue entry.
8861 * Return: true if work posted to worker thread, otherwise false.
8864 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba
*phba
, struct lpfc_rcqe
*rcqe
)
8866 bool workposted
= false;
8867 struct lpfc_queue
*hrq
= phba
->sli4_hba
.hdr_rq
;
8868 struct lpfc_queue
*drq
= phba
->sli4_hba
.dat_rq
;
8869 struct hbq_dmabuf
*dma_buf
;
8871 unsigned long iflags
;
8873 if (bf_get(lpfc_rcqe_rq_id
, rcqe
) != hrq
->queue_id
)
8876 status
= bf_get(lpfc_rcqe_status
, rcqe
);
8878 case FC_STATUS_RQ_BUF_LEN_EXCEEDED
:
8879 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
8880 "2537 Receive Frame Truncated!!\n");
8881 case FC_STATUS_RQ_SUCCESS
:
8882 lpfc_sli4_rq_release(hrq
, drq
);
8883 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8884 dma_buf
= lpfc_sli_hbqbuf_get(&phba
->hbqs
[0].hbq_buffer_list
);
8886 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8889 memcpy(&dma_buf
->cq_event
.cqe
.rcqe_cmpl
, rcqe
, sizeof(*rcqe
));
8890 /* save off the frame for the word thread to process */
8891 list_add_tail(&dma_buf
->cq_event
.list
,
8892 &phba
->sli4_hba
.sp_queue_event
);
8893 /* Frame received */
8894 phba
->hba_flag
|= HBA_SP_QUEUE_EVT
;
8895 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8898 case FC_STATUS_INSUFF_BUF_NEED_BUF
:
8899 case FC_STATUS_INSUFF_BUF_FRM_DISC
:
8900 /* Post more buffers if possible */
8901 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8902 phba
->hba_flag
|= HBA_POST_RECEIVE_BUFFER
;
8903 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8912 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
8913 * @phba: Pointer to HBA context object.
8914 * @cq: Pointer to the completion queue.
8915 * @wcqe: Pointer to a completion queue entry.
8917 * This routine process a slow-path work-queue or recieve queue completion queue
8920 * Return: true if work posted to worker thread, otherwise false.
8923 lpfc_sli4_sp_handle_cqe(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
8924 struct lpfc_cqe
*cqe
)
8926 struct lpfc_cqe cqevt
;
8927 bool workposted
= false;
8929 /* Copy the work queue CQE and convert endian order if needed */
8930 lpfc_sli_pcimem_bcopy(cqe
, &cqevt
, sizeof(struct lpfc_cqe
));
8932 /* Check and process for different type of WCQE and dispatch */
8933 switch (bf_get(lpfc_cqe_code
, &cqevt
)) {
8934 case CQE_CODE_COMPL_WQE
:
8935 /* Process the WQ/RQ complete event */
8936 workposted
= lpfc_sli4_sp_handle_els_wcqe(phba
,
8937 (struct lpfc_wcqe_complete
*)&cqevt
);
8939 case CQE_CODE_RELEASE_WQE
:
8940 /* Process the WQ release event */
8941 lpfc_sli4_sp_handle_rel_wcqe(phba
,
8942 (struct lpfc_wcqe_release
*)&cqevt
);
8944 case CQE_CODE_XRI_ABORTED
:
8945 /* Process the WQ XRI abort event */
8946 workposted
= lpfc_sli4_sp_handle_abort_xri_wcqe(phba
, cq
,
8947 (struct sli4_wcqe_xri_aborted
*)&cqevt
);
8949 case CQE_CODE_RECEIVE
:
8950 /* Process the RQ event */
8951 workposted
= lpfc_sli4_sp_handle_rcqe(phba
,
8952 (struct lpfc_rcqe
*)&cqevt
);
8955 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
8956 "0388 Not a valid WCQE code: x%x\n",
8957 bf_get(lpfc_cqe_code
, &cqevt
));
8964 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
8965 * @phba: Pointer to HBA context object.
8966 * @eqe: Pointer to fast-path event queue entry.
8968 * This routine process a event queue entry from the slow-path event queue.
8969 * It will check the MajorCode and MinorCode to determine this is for a
8970 * completion event on a completion queue, if not, an error shall be logged
8971 * and just return. Otherwise, it will get to the corresponding completion
8972 * queue and process all the entries on that completion queue, rearm the
8973 * completion queue, and then return.
8977 lpfc_sli4_sp_handle_eqe(struct lpfc_hba
*phba
, struct lpfc_eqe
*eqe
)
8979 struct lpfc_queue
*cq
= NULL
, *childq
, *speq
;
8980 struct lpfc_cqe
*cqe
;
8981 bool workposted
= false;
8985 if (bf_get(lpfc_eqe_major_code
, eqe
) != 0) {
8986 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
8987 "0359 Not a valid slow-path completion "
8988 "event: majorcode=x%x, minorcode=x%x\n",
8989 bf_get(lpfc_eqe_major_code
, eqe
),
8990 bf_get(lpfc_eqe_minor_code
, eqe
));
8994 /* Get the reference to the corresponding CQ */
8995 cqid
= bf_get(lpfc_eqe_resource_id
, eqe
);
8997 /* Search for completion queue pointer matching this cqid */
8998 speq
= phba
->sli4_hba
.sp_eq
;
8999 list_for_each_entry(childq
, &speq
->child_list
, list
) {
9000 if (childq
->queue_id
== cqid
) {
9005 if (unlikely(!cq
)) {
9006 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9007 "0365 Slow-path CQ identifier (%d) does "
9008 "not exist\n", cqid
);
9012 /* Process all the entries to the CQ */
9015 while ((cqe
= lpfc_sli4_cq_get(cq
))) {
9016 workposted
|= lpfc_sli4_sp_handle_mcqe(phba
, cqe
);
9017 if (!(++ecount
% LPFC_GET_QE_REL_INT
))
9018 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_NOARM
);
9022 while ((cqe
= lpfc_sli4_cq_get(cq
))) {
9023 workposted
|= lpfc_sli4_sp_handle_cqe(phba
, cq
, cqe
);
9024 if (!(++ecount
% LPFC_GET_QE_REL_INT
))
9025 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_NOARM
);
9029 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9030 "0370 Invalid completion queue type (%d)\n",
9035 /* Catch the no cq entry condition, log an error */
9036 if (unlikely(ecount
== 0))
9037 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9038 "0371 No entry from the CQ: identifier "
9039 "(x%x), type (%d)\n", cq
->queue_id
, cq
->type
);
9041 /* In any case, flash and re-arm the RCQ */
9042 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_REARM
);
9044 /* wake up worker thread if there are works to be done */
9046 lpfc_worker_wake_up(phba
);
9050 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
9051 * @eqe: Pointer to fast-path completion queue entry.
9053 * This routine process a fast-path work queue completion entry from fast-path
9054 * event queue for FCP command response completion.
9057 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba
*phba
,
9058 struct lpfc_wcqe_complete
*wcqe
)
9060 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_FCP_RING
];
9061 struct lpfc_iocbq
*cmdiocbq
;
9062 struct lpfc_iocbq irspiocbq
;
9063 unsigned long iflags
;
9065 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9066 pring
->stats
.iocb_event
++;
9067 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9069 /* Check for response status */
9070 if (unlikely(bf_get(lpfc_wcqe_c_status
, wcqe
))) {
9071 /* If resource errors reported from HBA, reduce queue
9072 * depth of the SCSI device.
9074 if ((bf_get(lpfc_wcqe_c_status
, wcqe
) ==
9075 IOSTAT_LOCAL_REJECT
) &&
9076 (wcqe
->parameter
== IOERR_NO_RESOURCES
)) {
9077 phba
->lpfc_rampdown_queue_depth(phba
);
9079 /* Log the error status */
9080 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
9081 "0373 FCP complete error: status=x%x, "
9082 "hw_status=x%x, total_data_specified=%d, "
9083 "parameter=x%x, word3=x%x\n",
9084 bf_get(lpfc_wcqe_c_status
, wcqe
),
9085 bf_get(lpfc_wcqe_c_hw_status
, wcqe
),
9086 wcqe
->total_data_placed
, wcqe
->parameter
,
9090 /* Look up the FCP command IOCB and create pseudo response IOCB */
9091 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9092 cmdiocbq
= lpfc_sli_iocbq_lookup_by_tag(phba
, pring
,
9093 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
9094 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9095 if (unlikely(!cmdiocbq
)) {
9096 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
9097 "0374 FCP complete with no corresponding "
9098 "cmdiocb: iotag (%d)\n",
9099 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
9102 if (unlikely(!cmdiocbq
->iocb_cmpl
)) {
9103 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
9104 "0375 FCP cmdiocb not callback function "
9106 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
9110 /* Fake the irspiocb and copy necessary response information */
9111 lpfc_sli4_iocb_param_transfer(phba
, &irspiocbq
, cmdiocbq
, wcqe
);
9113 if (cmdiocbq
->iocb_flag
& LPFC_DRIVER_ABORTED
) {
9114 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9115 cmdiocbq
->iocb_flag
&= ~LPFC_DRIVER_ABORTED
;
9116 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9119 /* Pass the cmd_iocb and the rsp state to the upper layer */
9120 (cmdiocbq
->iocb_cmpl
)(phba
, cmdiocbq
, &irspiocbq
);
9124 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
9125 * @phba: Pointer to HBA context object.
9126 * @cq: Pointer to completion queue.
9127 * @wcqe: Pointer to work-queue completion queue entry.
9129 * This routine handles an fast-path WQ entry comsumed event by invoking the
9130 * proper WQ release routine to the slow-path WQ.
9133 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
9134 struct lpfc_wcqe_release
*wcqe
)
9136 struct lpfc_queue
*childwq
;
9137 bool wqid_matched
= false;
9140 /* Check for fast-path FCP work queue release */
9141 fcp_wqid
= bf_get(lpfc_wcqe_r_wq_id
, wcqe
);
9142 list_for_each_entry(childwq
, &cq
->child_list
, list
) {
9143 if (childwq
->queue_id
== fcp_wqid
) {
9144 lpfc_sli4_wq_release(childwq
,
9145 bf_get(lpfc_wcqe_r_wqe_index
, wcqe
));
9146 wqid_matched
= true;
9150 /* Report warning log message if no match found */
9151 if (wqid_matched
!= true)
9152 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
9153 "2580 Fast-path wqe consume event carries "
9154 "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid
);
9158 * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry
9159 * @cq: Pointer to the completion queue.
9160 * @eqe: Pointer to fast-path completion queue entry.
9162 * This routine process a fast-path work queue completion entry from fast-path
9163 * event queue for FCP command response completion.
9166 lpfc_sli4_fp_handle_wcqe(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
9167 struct lpfc_cqe
*cqe
)
9169 struct lpfc_wcqe_release wcqe
;
9170 bool workposted
= false;
9172 /* Copy the work queue CQE and convert endian order if needed */
9173 lpfc_sli_pcimem_bcopy(cqe
, &wcqe
, sizeof(struct lpfc_cqe
));
9175 /* Check and process for different type of WCQE and dispatch */
9176 switch (bf_get(lpfc_wcqe_c_code
, &wcqe
)) {
9177 case CQE_CODE_COMPL_WQE
:
9178 /* Process the WQ complete event */
9179 lpfc_sli4_fp_handle_fcp_wcqe(phba
,
9180 (struct lpfc_wcqe_complete
*)&wcqe
);
9182 case CQE_CODE_RELEASE_WQE
:
9183 /* Process the WQ release event */
9184 lpfc_sli4_fp_handle_rel_wcqe(phba
, cq
,
9185 (struct lpfc_wcqe_release
*)&wcqe
);
9187 case CQE_CODE_XRI_ABORTED
:
9188 /* Process the WQ XRI abort event */
9189 workposted
= lpfc_sli4_sp_handle_abort_xri_wcqe(phba
, cq
,
9190 (struct sli4_wcqe_xri_aborted
*)&wcqe
);
9193 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9194 "0144 Not a valid WCQE code: x%x\n",
9195 bf_get(lpfc_wcqe_c_code
, &wcqe
));
9202 * lpfc_sli4_fp_handle_eqe - Process a fast-path event queue entry
9203 * @phba: Pointer to HBA context object.
9204 * @eqe: Pointer to fast-path event queue entry.
9206 * This routine process a event queue entry from the fast-path event queue.
9207 * It will check the MajorCode and MinorCode to determine this is for a
9208 * completion event on a completion queue, if not, an error shall be logged
9209 * and just return. Otherwise, it will get to the corresponding completion
9210 * queue and process all the entries on the completion queue, rearm the
9211 * completion queue, and then return.
9214 lpfc_sli4_fp_handle_eqe(struct lpfc_hba
*phba
, struct lpfc_eqe
*eqe
,
9217 struct lpfc_queue
*cq
;
9218 struct lpfc_cqe
*cqe
;
9219 bool workposted
= false;
9223 if (unlikely(bf_get(lpfc_eqe_major_code
, eqe
) != 0)) {
9224 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9225 "0366 Not a valid fast-path completion "
9226 "event: majorcode=x%x, minorcode=x%x\n",
9227 bf_get(lpfc_eqe_major_code
, eqe
),
9228 bf_get(lpfc_eqe_minor_code
, eqe
));
9232 cq
= phba
->sli4_hba
.fcp_cq
[fcp_cqidx
];
9233 if (unlikely(!cq
)) {
9234 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9235 "0367 Fast-path completion queue does not "
9240 /* Get the reference to the corresponding CQ */
9241 cqid
= bf_get(lpfc_eqe_resource_id
, eqe
);
9242 if (unlikely(cqid
!= cq
->queue_id
)) {
9243 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9244 "0368 Miss-matched fast-path completion "
9245 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
9246 cqid
, cq
->queue_id
);
9250 /* Process all the entries to the CQ */
9251 while ((cqe
= lpfc_sli4_cq_get(cq
))) {
9252 workposted
|= lpfc_sli4_fp_handle_wcqe(phba
, cq
, cqe
);
9253 if (!(++ecount
% LPFC_GET_QE_REL_INT
))
9254 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_NOARM
);
9257 /* Catch the no cq entry condition */
9258 if (unlikely(ecount
== 0))
9259 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9260 "0369 No entry from fast-path completion "
9261 "queue fcpcqid=%d\n", cq
->queue_id
);
9263 /* In any case, flash and re-arm the CQ */
9264 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_REARM
);
9266 /* wake up worker thread if there are works to be done */
9268 lpfc_worker_wake_up(phba
);
9272 lpfc_sli4_eq_flush(struct lpfc_hba
*phba
, struct lpfc_queue
*eq
)
9274 struct lpfc_eqe
*eqe
;
9276 /* walk all the EQ entries and drop on the floor */
9277 while ((eqe
= lpfc_sli4_eq_get(eq
)))
9280 /* Clear and re-arm the EQ */
9281 lpfc_sli4_eq_release(eq
, LPFC_QUEUE_REARM
);
9285 * lpfc_sli4_sp_intr_handler - Slow-path interrupt handler to SLI-4 device
9286 * @irq: Interrupt number.
9287 * @dev_id: The device context pointer.
9289 * This function is directly called from the PCI layer as an interrupt
9290 * service routine when device with SLI-4 interface spec is enabled with
9291 * MSI-X multi-message interrupt mode and there are slow-path events in
9292 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
9293 * interrupt mode, this function is called as part of the device-level
9294 * interrupt handler. When the PCI slot is in error recovery or the HBA is
9295 * undergoing initialization, the interrupt handler will not process the
9296 * interrupt. The link attention and ELS ring attention events are handled
9297 * by the worker thread. The interrupt handler signals the worker thread
9298 * and returns for these events. This function is called without any lock
9299 * held. It gets the hbalock to access and update SLI data structures.
9301 * This function returns IRQ_HANDLED when interrupt is handled else it
9305 lpfc_sli4_sp_intr_handler(int irq
, void *dev_id
)
9307 struct lpfc_hba
*phba
;
9308 struct lpfc_queue
*speq
;
9309 struct lpfc_eqe
*eqe
;
9310 unsigned long iflag
;
9314 * Get the driver's phba structure from the dev_id
9316 phba
= (struct lpfc_hba
*)dev_id
;
9318 if (unlikely(!phba
))
9321 /* Get to the EQ struct associated with this vector */
9322 speq
= phba
->sli4_hba
.sp_eq
;
9324 /* Check device state for handling interrupt */
9325 if (unlikely(lpfc_intr_state_check(phba
))) {
9326 /* Check again for link_state with lock held */
9327 spin_lock_irqsave(&phba
->hbalock
, iflag
);
9328 if (phba
->link_state
< LPFC_LINK_DOWN
)
9329 /* Flush, clear interrupt, and rearm the EQ */
9330 lpfc_sli4_eq_flush(phba
, speq
);
9331 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
9336 * Process all the event on FCP slow-path EQ
9338 while ((eqe
= lpfc_sli4_eq_get(speq
))) {
9339 lpfc_sli4_sp_handle_eqe(phba
, eqe
);
9340 if (!(++ecount
% LPFC_GET_QE_REL_INT
))
9341 lpfc_sli4_eq_release(speq
, LPFC_QUEUE_NOARM
);
9344 /* Always clear and re-arm the slow-path EQ */
9345 lpfc_sli4_eq_release(speq
, LPFC_QUEUE_REARM
);
9347 /* Catch the no cq entry condition */
9348 if (unlikely(ecount
== 0)) {
9349 if (phba
->intr_type
== MSIX
)
9350 /* MSI-X treated interrupt served as no EQ share INT */
9351 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
9352 "0357 MSI-X interrupt with no EQE\n");
9354 /* Non MSI-X treated on interrupt as EQ share INT */
9359 } /* lpfc_sli4_sp_intr_handler */
9362 * lpfc_sli4_fp_intr_handler - Fast-path interrupt handler to SLI-4 device
9363 * @irq: Interrupt number.
9364 * @dev_id: The device context pointer.
9366 * This function is directly called from the PCI layer as an interrupt
9367 * service routine when device with SLI-4 interface spec is enabled with
9368 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
9369 * ring event in the HBA. However, when the device is enabled with either
9370 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
9371 * device-level interrupt handler. When the PCI slot is in error recovery
9372 * or the HBA is undergoing initialization, the interrupt handler will not
9373 * process the interrupt. The SCSI FCP fast-path ring event are handled in
9374 * the intrrupt context. This function is called without any lock held.
9375 * It gets the hbalock to access and update SLI data structures. Note that,
9376 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
9377 * equal to that of FCP CQ index.
9379 * This function returns IRQ_HANDLED when interrupt is handled else it
9383 lpfc_sli4_fp_intr_handler(int irq
, void *dev_id
)
9385 struct lpfc_hba
*phba
;
9386 struct lpfc_fcp_eq_hdl
*fcp_eq_hdl
;
9387 struct lpfc_queue
*fpeq
;
9388 struct lpfc_eqe
*eqe
;
9389 unsigned long iflag
;
9393 /* Get the driver's phba structure from the dev_id */
9394 fcp_eq_hdl
= (struct lpfc_fcp_eq_hdl
*)dev_id
;
9395 phba
= fcp_eq_hdl
->phba
;
9396 fcp_eqidx
= fcp_eq_hdl
->idx
;
9398 if (unlikely(!phba
))
9401 /* Get to the EQ struct associated with this vector */
9402 fpeq
= phba
->sli4_hba
.fp_eq
[fcp_eqidx
];
9404 /* Check device state for handling interrupt */
9405 if (unlikely(lpfc_intr_state_check(phba
))) {
9406 /* Check again for link_state with lock held */
9407 spin_lock_irqsave(&phba
->hbalock
, iflag
);
9408 if (phba
->link_state
< LPFC_LINK_DOWN
)
9409 /* Flush, clear interrupt, and rearm the EQ */
9410 lpfc_sli4_eq_flush(phba
, fpeq
);
9411 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
9416 * Process all the event on FCP fast-path EQ
9418 while ((eqe
= lpfc_sli4_eq_get(fpeq
))) {
9419 lpfc_sli4_fp_handle_eqe(phba
, eqe
, fcp_eqidx
);
9420 if (!(++ecount
% LPFC_GET_QE_REL_INT
))
9421 lpfc_sli4_eq_release(fpeq
, LPFC_QUEUE_NOARM
);
9424 /* Always clear and re-arm the fast-path EQ */
9425 lpfc_sli4_eq_release(fpeq
, LPFC_QUEUE_REARM
);
9427 if (unlikely(ecount
== 0)) {
9428 if (phba
->intr_type
== MSIX
)
9429 /* MSI-X treated interrupt served as no EQ share INT */
9430 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
9431 "0358 MSI-X interrupt with no EQE\n");
9433 /* Non MSI-X treated on interrupt as EQ share INT */
9438 } /* lpfc_sli4_fp_intr_handler */
9441 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
9442 * @irq: Interrupt number.
9443 * @dev_id: The device context pointer.
9445 * This function is the device-level interrupt handler to device with SLI-4
9446 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
9447 * interrupt mode is enabled and there is an event in the HBA which requires
9448 * driver attention. This function invokes the slow-path interrupt attention
9449 * handling function and fast-path interrupt attention handling function in
9450 * turn to process the relevant HBA attention events. This function is called
9451 * without any lock held. It gets the hbalock to access and update SLI data
9454 * This function returns IRQ_HANDLED when interrupt is handled, else it
9458 lpfc_sli4_intr_handler(int irq
, void *dev_id
)
9460 struct lpfc_hba
*phba
;
9461 irqreturn_t sp_irq_rc
, fp_irq_rc
;
9462 bool fp_handled
= false;
9465 /* Get the driver's phba structure from the dev_id */
9466 phba
= (struct lpfc_hba
*)dev_id
;
9468 if (unlikely(!phba
))
9472 * Invokes slow-path host attention interrupt handling as appropriate.
9474 sp_irq_rc
= lpfc_sli4_sp_intr_handler(irq
, dev_id
);
9477 * Invoke fast-path host attention interrupt handling as appropriate.
9479 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_eq_count
; fcp_eqidx
++) {
9480 fp_irq_rc
= lpfc_sli4_fp_intr_handler(irq
,
9481 &phba
->sli4_hba
.fcp_eq_hdl
[fcp_eqidx
]);
9482 if (fp_irq_rc
== IRQ_HANDLED
)
9486 return (fp_handled
== true) ? IRQ_HANDLED
: sp_irq_rc
;
9487 } /* lpfc_sli4_intr_handler */
9490 * lpfc_sli4_queue_free - free a queue structure and associated memory
9491 * @queue: The queue structure to free.
9493 * This function frees a queue structure and the DMAable memeory used for
9494 * the host resident queue. This function must be called after destroying the
9498 lpfc_sli4_queue_free(struct lpfc_queue
*queue
)
9500 struct lpfc_dmabuf
*dmabuf
;
9505 while (!list_empty(&queue
->page_list
)) {
9506 list_remove_head(&queue
->page_list
, dmabuf
, struct lpfc_dmabuf
,
9508 dma_free_coherent(&queue
->phba
->pcidev
->dev
, PAGE_SIZE
,
9509 dmabuf
->virt
, dmabuf
->phys
);
9517 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
9518 * @phba: The HBA that this queue is being created on.
9519 * @entry_size: The size of each queue entry for this queue.
9520 * @entry count: The number of entries that this queue will handle.
9522 * This function allocates a queue structure and the DMAable memory used for
9523 * the host resident queue. This function must be called before creating the
9527 lpfc_sli4_queue_alloc(struct lpfc_hba
*phba
, uint32_t entry_size
,
9528 uint32_t entry_count
)
9530 struct lpfc_queue
*queue
;
9531 struct lpfc_dmabuf
*dmabuf
;
9532 int x
, total_qe_count
;
9536 queue
= kzalloc(sizeof(struct lpfc_queue
) +
9537 (sizeof(union sli4_qe
) * entry_count
), GFP_KERNEL
);
9540 queue
->page_count
= (PAGE_ALIGN(entry_size
* entry_count
))/PAGE_SIZE
;
9541 INIT_LIST_HEAD(&queue
->list
);
9542 INIT_LIST_HEAD(&queue
->page_list
);
9543 INIT_LIST_HEAD(&queue
->child_list
);
9544 for (x
= 0, total_qe_count
= 0; x
< queue
->page_count
; x
++) {
9545 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
9548 dmabuf
->virt
= dma_alloc_coherent(&phba
->pcidev
->dev
,
9549 PAGE_SIZE
, &dmabuf
->phys
,
9551 if (!dmabuf
->virt
) {
9555 memset(dmabuf
->virt
, 0, PAGE_SIZE
);
9556 dmabuf
->buffer_tag
= x
;
9557 list_add_tail(&dmabuf
->list
, &queue
->page_list
);
9558 /* initialize queue's entry array */
9559 dma_pointer
= dmabuf
->virt
;
9560 for (; total_qe_count
< entry_count
&&
9561 dma_pointer
< (PAGE_SIZE
+ dmabuf
->virt
);
9562 total_qe_count
++, dma_pointer
+= entry_size
) {
9563 queue
->qe
[total_qe_count
].address
= dma_pointer
;
9566 queue
->entry_size
= entry_size
;
9567 queue
->entry_count
= entry_count
;
9572 lpfc_sli4_queue_free(queue
);
9577 * lpfc_eq_create - Create an Event Queue on the HBA
9578 * @phba: HBA structure that indicates port to create a queue on.
9579 * @eq: The queue structure to use to create the event queue.
9580 * @imax: The maximum interrupt per second limit.
9582 * This function creates an event queue, as detailed in @eq, on a port,
9583 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
9585 * The @phba struct is used to send mailbox command to HBA. The @eq struct
9586 * is used to get the entry count and entry size that are necessary to
9587 * determine the number of pages to allocate and use for this queue. This
9588 * function will send the EQ_CREATE mailbox command to the HBA to setup the
9589 * event queue. This function is asynchronous and will wait for the mailbox
9590 * command to finish before continuing.
9592 * On success this function will return a zero. If unable to allocate enough
9593 * memory this function will return ENOMEM. If the queue create mailbox command
9594 * fails this function will return ENXIO.
9597 lpfc_eq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*eq
, uint16_t imax
)
9599 struct lpfc_mbx_eq_create
*eq_create
;
9601 int rc
, length
, status
= 0;
9602 struct lpfc_dmabuf
*dmabuf
;
9603 uint32_t shdr_status
, shdr_add_status
;
9604 union lpfc_sli4_cfg_shdr
*shdr
;
9607 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
9610 length
= (sizeof(struct lpfc_mbx_eq_create
) -
9611 sizeof(struct lpfc_sli4_cfg_mhdr
));
9612 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
9613 LPFC_MBOX_OPCODE_EQ_CREATE
,
9614 length
, LPFC_SLI4_MBX_EMBED
);
9615 eq_create
= &mbox
->u
.mqe
.un
.eq_create
;
9616 bf_set(lpfc_mbx_eq_create_num_pages
, &eq_create
->u
.request
,
9618 bf_set(lpfc_eq_context_size
, &eq_create
->u
.request
.context
,
9620 bf_set(lpfc_eq_context_valid
, &eq_create
->u
.request
.context
, 1);
9621 /* Calculate delay multiper from maximum interrupt per second */
9622 dmult
= LPFC_DMULT_CONST
/imax
- 1;
9623 bf_set(lpfc_eq_context_delay_multi
, &eq_create
->u
.request
.context
,
9625 switch (eq
->entry_count
) {
9627 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9628 "0360 Unsupported EQ count. (%d)\n",
9630 if (eq
->entry_count
< 256)
9632 /* otherwise default to smallest count (drop through) */
9634 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
9638 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
9642 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
9646 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
9650 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
9654 list_for_each_entry(dmabuf
, &eq
->page_list
, list
) {
9655 eq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
9656 putPaddrLow(dmabuf
->phys
);
9657 eq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
9658 putPaddrHigh(dmabuf
->phys
);
9660 mbox
->vport
= phba
->pport
;
9661 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
9662 mbox
->context1
= NULL
;
9663 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
9664 shdr
= (union lpfc_sli4_cfg_shdr
*) &eq_create
->header
.cfg_shdr
;
9665 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
9666 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
9667 if (shdr_status
|| shdr_add_status
|| rc
) {
9668 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9669 "2500 EQ_CREATE mailbox failed with "
9670 "status x%x add_status x%x, mbx status x%x\n",
9671 shdr_status
, shdr_add_status
, rc
);
9675 eq
->subtype
= LPFC_NONE
;
9676 eq
->queue_id
= bf_get(lpfc_mbx_eq_create_q_id
, &eq_create
->u
.response
);
9677 if (eq
->queue_id
== 0xFFFF)
9682 mempool_free(mbox
, phba
->mbox_mem_pool
);
9687 * lpfc_cq_create - Create a Completion Queue on the HBA
9688 * @phba: HBA structure that indicates port to create a queue on.
9689 * @cq: The queue structure to use to create the completion queue.
9690 * @eq: The event queue to bind this completion queue to.
9692 * This function creates a completion queue, as detailed in @wq, on a port,
9693 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
9695 * The @phba struct is used to send mailbox command to HBA. The @cq struct
9696 * is used to get the entry count and entry size that are necessary to
9697 * determine the number of pages to allocate and use for this queue. The @eq
9698 * is used to indicate which event queue to bind this completion queue to. This
9699 * function will send the CQ_CREATE mailbox command to the HBA to setup the
9700 * completion queue. This function is asynchronous and will wait for the mailbox
9701 * command to finish before continuing.
9703 * On success this function will return a zero. If unable to allocate enough
9704 * memory this function will return ENOMEM. If the queue create mailbox command
9705 * fails this function will return ENXIO.
9708 lpfc_cq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
9709 struct lpfc_queue
*eq
, uint32_t type
, uint32_t subtype
)
9711 struct lpfc_mbx_cq_create
*cq_create
;
9712 struct lpfc_dmabuf
*dmabuf
;
9714 int rc
, length
, status
= 0;
9715 uint32_t shdr_status
, shdr_add_status
;
9716 union lpfc_sli4_cfg_shdr
*shdr
;
9718 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
9721 length
= (sizeof(struct lpfc_mbx_cq_create
) -
9722 sizeof(struct lpfc_sli4_cfg_mhdr
));
9723 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
9724 LPFC_MBOX_OPCODE_CQ_CREATE
,
9725 length
, LPFC_SLI4_MBX_EMBED
);
9726 cq_create
= &mbox
->u
.mqe
.un
.cq_create
;
9727 bf_set(lpfc_mbx_cq_create_num_pages
, &cq_create
->u
.request
,
9729 bf_set(lpfc_cq_context_event
, &cq_create
->u
.request
.context
, 1);
9730 bf_set(lpfc_cq_context_valid
, &cq_create
->u
.request
.context
, 1);
9731 bf_set(lpfc_cq_eq_id
, &cq_create
->u
.request
.context
, eq
->queue_id
);
9732 switch (cq
->entry_count
) {
9734 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9735 "0361 Unsupported CQ count. (%d)\n",
9737 if (cq
->entry_count
< 256)
9739 /* otherwise default to smallest count (drop through) */
9741 bf_set(lpfc_cq_context_count
, &cq_create
->u
.request
.context
,
9745 bf_set(lpfc_cq_context_count
, &cq_create
->u
.request
.context
,
9749 bf_set(lpfc_cq_context_count
, &cq_create
->u
.request
.context
,
9753 list_for_each_entry(dmabuf
, &cq
->page_list
, list
) {
9754 cq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
9755 putPaddrLow(dmabuf
->phys
);
9756 cq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
9757 putPaddrHigh(dmabuf
->phys
);
9759 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
9761 /* The IOCTL status is embedded in the mailbox subheader. */
9762 shdr
= (union lpfc_sli4_cfg_shdr
*) &cq_create
->header
.cfg_shdr
;
9763 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
9764 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
9765 if (shdr_status
|| shdr_add_status
|| rc
) {
9766 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9767 "2501 CQ_CREATE mailbox failed with "
9768 "status x%x add_status x%x, mbx status x%x\n",
9769 shdr_status
, shdr_add_status
, rc
);
9773 cq
->queue_id
= bf_get(lpfc_mbx_cq_create_q_id
, &cq_create
->u
.response
);
9774 if (cq
->queue_id
== 0xFFFF) {
9778 /* link the cq onto the parent eq child list */
9779 list_add_tail(&cq
->list
, &eq
->child_list
);
9780 /* Set up completion queue's type and subtype */
9782 cq
->subtype
= subtype
;
9783 cq
->queue_id
= bf_get(lpfc_mbx_cq_create_q_id
, &cq_create
->u
.response
);
9788 mempool_free(mbox
, phba
->mbox_mem_pool
);
9793 * lpfc_mq_create - Create a mailbox Queue on the HBA
9794 * @phba: HBA structure that indicates port to create a queue on.
9795 * @mq: The queue structure to use to create the mailbox queue.
9797 * This function creates a mailbox queue, as detailed in @mq, on a port,
9798 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
9800 * The @phba struct is used to send mailbox command to HBA. The @cq struct
9801 * is used to get the entry count and entry size that are necessary to
9802 * determine the number of pages to allocate and use for this queue. This
9803 * function will send the MQ_CREATE mailbox command to the HBA to setup the
9804 * mailbox queue. This function is asynchronous and will wait for the mailbox
9805 * command to finish before continuing.
9807 * On success this function will return a zero. If unable to allocate enough
9808 * memory this function will return ENOMEM. If the queue create mailbox command
9809 * fails this function will return ENXIO.
9812 lpfc_mq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*mq
,
9813 struct lpfc_queue
*cq
, uint32_t subtype
)
9815 struct lpfc_mbx_mq_create
*mq_create
;
9816 struct lpfc_dmabuf
*dmabuf
;
9818 int rc
, length
, status
= 0;
9819 uint32_t shdr_status
, shdr_add_status
;
9820 union lpfc_sli4_cfg_shdr
*shdr
;
9822 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
9825 length
= (sizeof(struct lpfc_mbx_mq_create
) -
9826 sizeof(struct lpfc_sli4_cfg_mhdr
));
9827 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
9828 LPFC_MBOX_OPCODE_MQ_CREATE
,
9829 length
, LPFC_SLI4_MBX_EMBED
);
9830 mq_create
= &mbox
->u
.mqe
.un
.mq_create
;
9831 bf_set(lpfc_mbx_mq_create_num_pages
, &mq_create
->u
.request
,
9833 bf_set(lpfc_mq_context_cq_id
, &mq_create
->u
.request
.context
,
9835 bf_set(lpfc_mq_context_valid
, &mq_create
->u
.request
.context
, 1);
9836 switch (mq
->entry_count
) {
9838 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9839 "0362 Unsupported MQ count. (%d)\n",
9841 if (mq
->entry_count
< 16)
9843 /* otherwise default to smallest count (drop through) */
9845 bf_set(lpfc_mq_context_count
, &mq_create
->u
.request
.context
,
9849 bf_set(lpfc_mq_context_count
, &mq_create
->u
.request
.context
,
9853 bf_set(lpfc_mq_context_count
, &mq_create
->u
.request
.context
,
9857 bf_set(lpfc_mq_context_count
, &mq_create
->u
.request
.context
,
9861 list_for_each_entry(dmabuf
, &mq
->page_list
, list
) {
9862 mq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
9863 putPaddrLow(dmabuf
->phys
);
9864 mq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
9865 putPaddrHigh(dmabuf
->phys
);
9867 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
9868 /* The IOCTL status is embedded in the mailbox subheader. */
9869 shdr
= (union lpfc_sli4_cfg_shdr
*) &mq_create
->header
.cfg_shdr
;
9870 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
9871 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
9872 if (shdr_status
|| shdr_add_status
|| rc
) {
9873 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9874 "2502 MQ_CREATE mailbox failed with "
9875 "status x%x add_status x%x, mbx status x%x\n",
9876 shdr_status
, shdr_add_status
, rc
);
9880 mq
->queue_id
= bf_get(lpfc_mbx_mq_create_q_id
, &mq_create
->u
.response
);
9881 if (mq
->queue_id
== 0xFFFF) {
9886 mq
->subtype
= subtype
;
9890 /* link the mq onto the parent cq child list */
9891 list_add_tail(&mq
->list
, &cq
->child_list
);
9893 mempool_free(mbox
, phba
->mbox_mem_pool
);
9898 * lpfc_wq_create - Create a Work Queue on the HBA
9899 * @phba: HBA structure that indicates port to create a queue on.
9900 * @wq: The queue structure to use to create the work queue.
9901 * @cq: The completion queue to bind this work queue to.
9902 * @subtype: The subtype of the work queue indicating its functionality.
9904 * This function creates a work queue, as detailed in @wq, on a port, described
9905 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
9907 * The @phba struct is used to send mailbox command to HBA. The @wq struct
9908 * is used to get the entry count and entry size that are necessary to
9909 * determine the number of pages to allocate and use for this queue. The @cq
9910 * is used to indicate which completion queue to bind this work queue to. This
9911 * function will send the WQ_CREATE mailbox command to the HBA to setup the
9912 * work queue. This function is asynchronous and will wait for the mailbox
9913 * command to finish before continuing.
9915 * On success this function will return a zero. If unable to allocate enough
9916 * memory this function will return ENOMEM. If the queue create mailbox command
9917 * fails this function will return ENXIO.
9920 lpfc_wq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*wq
,
9921 struct lpfc_queue
*cq
, uint32_t subtype
)
9923 struct lpfc_mbx_wq_create
*wq_create
;
9924 struct lpfc_dmabuf
*dmabuf
;
9926 int rc
, length
, status
= 0;
9927 uint32_t shdr_status
, shdr_add_status
;
9928 union lpfc_sli4_cfg_shdr
*shdr
;
9930 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
9933 length
= (sizeof(struct lpfc_mbx_wq_create
) -
9934 sizeof(struct lpfc_sli4_cfg_mhdr
));
9935 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
9936 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE
,
9937 length
, LPFC_SLI4_MBX_EMBED
);
9938 wq_create
= &mbox
->u
.mqe
.un
.wq_create
;
9939 bf_set(lpfc_mbx_wq_create_num_pages
, &wq_create
->u
.request
,
9941 bf_set(lpfc_mbx_wq_create_cq_id
, &wq_create
->u
.request
,
9943 list_for_each_entry(dmabuf
, &wq
->page_list
, list
) {
9944 wq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
9945 putPaddrLow(dmabuf
->phys
);
9946 wq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
9947 putPaddrHigh(dmabuf
->phys
);
9949 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
9950 /* The IOCTL status is embedded in the mailbox subheader. */
9951 shdr
= (union lpfc_sli4_cfg_shdr
*) &wq_create
->header
.cfg_shdr
;
9952 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
9953 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
9954 if (shdr_status
|| shdr_add_status
|| rc
) {
9955 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9956 "2503 WQ_CREATE mailbox failed with "
9957 "status x%x add_status x%x, mbx status x%x\n",
9958 shdr_status
, shdr_add_status
, rc
);
9962 wq
->queue_id
= bf_get(lpfc_mbx_wq_create_q_id
, &wq_create
->u
.response
);
9963 if (wq
->queue_id
== 0xFFFF) {
9968 wq
->subtype
= subtype
;
9972 /* link the wq onto the parent cq child list */
9973 list_add_tail(&wq
->list
, &cq
->child_list
);
9975 mempool_free(mbox
, phba
->mbox_mem_pool
);
9980 * lpfc_rq_create - Create a Receive Queue on the HBA
9981 * @phba: HBA structure that indicates port to create a queue on.
9982 * @hrq: The queue structure to use to create the header receive queue.
9983 * @drq: The queue structure to use to create the data receive queue.
9984 * @cq: The completion queue to bind this work queue to.
9986 * This function creates a receive buffer queue pair , as detailed in @hrq and
9987 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
9990 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
9991 * struct is used to get the entry count that is necessary to determine the
9992 * number of pages to use for this queue. The @cq is used to indicate which
9993 * completion queue to bind received buffers that are posted to these queues to.
9994 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
9995 * receive queue pair. This function is asynchronous and will wait for the
9996 * mailbox command to finish before continuing.
9998 * On success this function will return a zero. If unable to allocate enough
9999 * memory this function will return ENOMEM. If the queue create mailbox command
10000 * fails this function will return ENXIO.
10003 lpfc_rq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*hrq
,
10004 struct lpfc_queue
*drq
, struct lpfc_queue
*cq
, uint32_t subtype
)
10006 struct lpfc_mbx_rq_create
*rq_create
;
10007 struct lpfc_dmabuf
*dmabuf
;
10008 LPFC_MBOXQ_t
*mbox
;
10009 int rc
, length
, status
= 0;
10010 uint32_t shdr_status
, shdr_add_status
;
10011 union lpfc_sli4_cfg_shdr
*shdr
;
10013 if (hrq
->entry_count
!= drq
->entry_count
)
10015 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
10018 length
= (sizeof(struct lpfc_mbx_rq_create
) -
10019 sizeof(struct lpfc_sli4_cfg_mhdr
));
10020 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
10021 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE
,
10022 length
, LPFC_SLI4_MBX_EMBED
);
10023 rq_create
= &mbox
->u
.mqe
.un
.rq_create
;
10024 switch (hrq
->entry_count
) {
10026 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
10027 "2535 Unsupported RQ count. (%d)\n",
10029 if (hrq
->entry_count
< 512)
10031 /* otherwise default to smallest count (drop through) */
10033 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10034 LPFC_RQ_RING_SIZE_512
);
10037 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10038 LPFC_RQ_RING_SIZE_1024
);
10041 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10042 LPFC_RQ_RING_SIZE_2048
);
10045 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10046 LPFC_RQ_RING_SIZE_4096
);
10049 bf_set(lpfc_rq_context_cq_id
, &rq_create
->u
.request
.context
,
10051 bf_set(lpfc_mbx_rq_create_num_pages
, &rq_create
->u
.request
,
10053 bf_set(lpfc_rq_context_buf_size
, &rq_create
->u
.request
.context
,
10054 LPFC_HDR_BUF_SIZE
);
10055 list_for_each_entry(dmabuf
, &hrq
->page_list
, list
) {
10056 rq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
10057 putPaddrLow(dmabuf
->phys
);
10058 rq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
10059 putPaddrHigh(dmabuf
->phys
);
10061 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10062 /* The IOCTL status is embedded in the mailbox subheader. */
10063 shdr
= (union lpfc_sli4_cfg_shdr
*) &rq_create
->header
.cfg_shdr
;
10064 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10065 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10066 if (shdr_status
|| shdr_add_status
|| rc
) {
10067 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10068 "2504 RQ_CREATE mailbox failed with "
10069 "status x%x add_status x%x, mbx status x%x\n",
10070 shdr_status
, shdr_add_status
, rc
);
10074 hrq
->queue_id
= bf_get(lpfc_mbx_rq_create_q_id
, &rq_create
->u
.response
);
10075 if (hrq
->queue_id
== 0xFFFF) {
10079 hrq
->type
= LPFC_HRQ
;
10080 hrq
->subtype
= subtype
;
10081 hrq
->host_index
= 0;
10082 hrq
->hba_index
= 0;
10084 /* now create the data queue */
10085 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
10086 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE
,
10087 length
, LPFC_SLI4_MBX_EMBED
);
10088 switch (drq
->entry_count
) {
10090 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
10091 "2536 Unsupported RQ count. (%d)\n",
10093 if (drq
->entry_count
< 512)
10095 /* otherwise default to smallest count (drop through) */
10097 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10098 LPFC_RQ_RING_SIZE_512
);
10101 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10102 LPFC_RQ_RING_SIZE_1024
);
10105 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10106 LPFC_RQ_RING_SIZE_2048
);
10109 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10110 LPFC_RQ_RING_SIZE_4096
);
10113 bf_set(lpfc_rq_context_cq_id
, &rq_create
->u
.request
.context
,
10115 bf_set(lpfc_mbx_rq_create_num_pages
, &rq_create
->u
.request
,
10117 bf_set(lpfc_rq_context_buf_size
, &rq_create
->u
.request
.context
,
10118 LPFC_DATA_BUF_SIZE
);
10119 list_for_each_entry(dmabuf
, &drq
->page_list
, list
) {
10120 rq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
10121 putPaddrLow(dmabuf
->phys
);
10122 rq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
10123 putPaddrHigh(dmabuf
->phys
);
10125 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10126 /* The IOCTL status is embedded in the mailbox subheader. */
10127 shdr
= (union lpfc_sli4_cfg_shdr
*) &rq_create
->header
.cfg_shdr
;
10128 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10129 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10130 if (shdr_status
|| shdr_add_status
|| rc
) {
10134 drq
->queue_id
= bf_get(lpfc_mbx_rq_create_q_id
, &rq_create
->u
.response
);
10135 if (drq
->queue_id
== 0xFFFF) {
10139 drq
->type
= LPFC_DRQ
;
10140 drq
->subtype
= subtype
;
10141 drq
->host_index
= 0;
10142 drq
->hba_index
= 0;
10144 /* link the header and data RQs onto the parent cq child list */
10145 list_add_tail(&hrq
->list
, &cq
->child_list
);
10146 list_add_tail(&drq
->list
, &cq
->child_list
);
10149 mempool_free(mbox
, phba
->mbox_mem_pool
);
10154 * lpfc_eq_destroy - Destroy an event Queue on the HBA
10155 * @eq: The queue structure associated with the queue to destroy.
10157 * This function destroys a queue, as detailed in @eq by sending an mailbox
10158 * command, specific to the type of queue, to the HBA.
10160 * The @eq struct is used to get the queue ID of the queue to destroy.
10162 * On success this function will return a zero. If the queue destroy mailbox
10163 * command fails this function will return ENXIO.
10166 lpfc_eq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*eq
)
10168 LPFC_MBOXQ_t
*mbox
;
10169 int rc
, length
, status
= 0;
10170 uint32_t shdr_status
, shdr_add_status
;
10171 union lpfc_sli4_cfg_shdr
*shdr
;
10175 mbox
= mempool_alloc(eq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
10178 length
= (sizeof(struct lpfc_mbx_eq_destroy
) -
10179 sizeof(struct lpfc_sli4_cfg_mhdr
));
10180 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
10181 LPFC_MBOX_OPCODE_EQ_DESTROY
,
10182 length
, LPFC_SLI4_MBX_EMBED
);
10183 bf_set(lpfc_mbx_eq_destroy_q_id
, &mbox
->u
.mqe
.un
.eq_destroy
.u
.request
,
10185 mbox
->vport
= eq
->phba
->pport
;
10186 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
10188 rc
= lpfc_sli_issue_mbox(eq
->phba
, mbox
, MBX_POLL
);
10189 /* The IOCTL status is embedded in the mailbox subheader. */
10190 shdr
= (union lpfc_sli4_cfg_shdr
*)
10191 &mbox
->u
.mqe
.un
.eq_destroy
.header
.cfg_shdr
;
10192 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10193 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10194 if (shdr_status
|| shdr_add_status
|| rc
) {
10195 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10196 "2505 EQ_DESTROY mailbox failed with "
10197 "status x%x add_status x%x, mbx status x%x\n",
10198 shdr_status
, shdr_add_status
, rc
);
10202 /* Remove eq from any list */
10203 list_del_init(&eq
->list
);
10204 mempool_free(mbox
, eq
->phba
->mbox_mem_pool
);
10209 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
10210 * @cq: The queue structure associated with the queue to destroy.
10212 * This function destroys a queue, as detailed in @cq by sending an mailbox
10213 * command, specific to the type of queue, to the HBA.
10215 * The @cq struct is used to get the queue ID of the queue to destroy.
10217 * On success this function will return a zero. If the queue destroy mailbox
10218 * command fails this function will return ENXIO.
10221 lpfc_cq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
)
10223 LPFC_MBOXQ_t
*mbox
;
10224 int rc
, length
, status
= 0;
10225 uint32_t shdr_status
, shdr_add_status
;
10226 union lpfc_sli4_cfg_shdr
*shdr
;
10230 mbox
= mempool_alloc(cq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
10233 length
= (sizeof(struct lpfc_mbx_cq_destroy
) -
10234 sizeof(struct lpfc_sli4_cfg_mhdr
));
10235 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
10236 LPFC_MBOX_OPCODE_CQ_DESTROY
,
10237 length
, LPFC_SLI4_MBX_EMBED
);
10238 bf_set(lpfc_mbx_cq_destroy_q_id
, &mbox
->u
.mqe
.un
.cq_destroy
.u
.request
,
10240 mbox
->vport
= cq
->phba
->pport
;
10241 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
10242 rc
= lpfc_sli_issue_mbox(cq
->phba
, mbox
, MBX_POLL
);
10243 /* The IOCTL status is embedded in the mailbox subheader. */
10244 shdr
= (union lpfc_sli4_cfg_shdr
*)
10245 &mbox
->u
.mqe
.un
.wq_create
.header
.cfg_shdr
;
10246 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10247 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10248 if (shdr_status
|| shdr_add_status
|| rc
) {
10249 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10250 "2506 CQ_DESTROY mailbox failed with "
10251 "status x%x add_status x%x, mbx status x%x\n",
10252 shdr_status
, shdr_add_status
, rc
);
10255 /* Remove cq from any list */
10256 list_del_init(&cq
->list
);
10257 mempool_free(mbox
, cq
->phba
->mbox_mem_pool
);
10262 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
10263 * @qm: The queue structure associated with the queue to destroy.
10265 * This function destroys a queue, as detailed in @mq by sending an mailbox
10266 * command, specific to the type of queue, to the HBA.
10268 * The @mq struct is used to get the queue ID of the queue to destroy.
10270 * On success this function will return a zero. If the queue destroy mailbox
10271 * command fails this function will return ENXIO.
10274 lpfc_mq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*mq
)
10276 LPFC_MBOXQ_t
*mbox
;
10277 int rc
, length
, status
= 0;
10278 uint32_t shdr_status
, shdr_add_status
;
10279 union lpfc_sli4_cfg_shdr
*shdr
;
10283 mbox
= mempool_alloc(mq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
10286 length
= (sizeof(struct lpfc_mbx_mq_destroy
) -
10287 sizeof(struct lpfc_sli4_cfg_mhdr
));
10288 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
10289 LPFC_MBOX_OPCODE_MQ_DESTROY
,
10290 length
, LPFC_SLI4_MBX_EMBED
);
10291 bf_set(lpfc_mbx_mq_destroy_q_id
, &mbox
->u
.mqe
.un
.mq_destroy
.u
.request
,
10293 mbox
->vport
= mq
->phba
->pport
;
10294 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
10295 rc
= lpfc_sli_issue_mbox(mq
->phba
, mbox
, MBX_POLL
);
10296 /* The IOCTL status is embedded in the mailbox subheader. */
10297 shdr
= (union lpfc_sli4_cfg_shdr
*)
10298 &mbox
->u
.mqe
.un
.mq_destroy
.header
.cfg_shdr
;
10299 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10300 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10301 if (shdr_status
|| shdr_add_status
|| rc
) {
10302 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10303 "2507 MQ_DESTROY mailbox failed with "
10304 "status x%x add_status x%x, mbx status x%x\n",
10305 shdr_status
, shdr_add_status
, rc
);
10308 /* Remove mq from any list */
10309 list_del_init(&mq
->list
);
10310 mempool_free(mbox
, mq
->phba
->mbox_mem_pool
);
10315 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
10316 * @wq: The queue structure associated with the queue to destroy.
10318 * This function destroys a queue, as detailed in @wq by sending an mailbox
10319 * command, specific to the type of queue, to the HBA.
10321 * The @wq struct is used to get the queue ID of the queue to destroy.
10323 * On success this function will return a zero. If the queue destroy mailbox
10324 * command fails this function will return ENXIO.
10327 lpfc_wq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*wq
)
10329 LPFC_MBOXQ_t
*mbox
;
10330 int rc
, length
, status
= 0;
10331 uint32_t shdr_status
, shdr_add_status
;
10332 union lpfc_sli4_cfg_shdr
*shdr
;
10336 mbox
= mempool_alloc(wq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
10339 length
= (sizeof(struct lpfc_mbx_wq_destroy
) -
10340 sizeof(struct lpfc_sli4_cfg_mhdr
));
10341 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
10342 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY
,
10343 length
, LPFC_SLI4_MBX_EMBED
);
10344 bf_set(lpfc_mbx_wq_destroy_q_id
, &mbox
->u
.mqe
.un
.wq_destroy
.u
.request
,
10346 mbox
->vport
= wq
->phba
->pport
;
10347 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
10348 rc
= lpfc_sli_issue_mbox(wq
->phba
, mbox
, MBX_POLL
);
10349 shdr
= (union lpfc_sli4_cfg_shdr
*)
10350 &mbox
->u
.mqe
.un
.wq_destroy
.header
.cfg_shdr
;
10351 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10352 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10353 if (shdr_status
|| shdr_add_status
|| rc
) {
10354 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10355 "2508 WQ_DESTROY mailbox failed with "
10356 "status x%x add_status x%x, mbx status x%x\n",
10357 shdr_status
, shdr_add_status
, rc
);
10360 /* Remove wq from any list */
10361 list_del_init(&wq
->list
);
10362 mempool_free(mbox
, wq
->phba
->mbox_mem_pool
);
10367 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
10368 * @rq: The queue structure associated with the queue to destroy.
10370 * This function destroys a queue, as detailed in @rq by sending an mailbox
10371 * command, specific to the type of queue, to the HBA.
10373 * The @rq struct is used to get the queue ID of the queue to destroy.
10375 * On success this function will return a zero. If the queue destroy mailbox
10376 * command fails this function will return ENXIO.
10379 lpfc_rq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*hrq
,
10380 struct lpfc_queue
*drq
)
10382 LPFC_MBOXQ_t
*mbox
;
10383 int rc
, length
, status
= 0;
10384 uint32_t shdr_status
, shdr_add_status
;
10385 union lpfc_sli4_cfg_shdr
*shdr
;
10389 mbox
= mempool_alloc(hrq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
10392 length
= (sizeof(struct lpfc_mbx_rq_destroy
) -
10393 sizeof(struct mbox_header
));
10394 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
10395 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY
,
10396 length
, LPFC_SLI4_MBX_EMBED
);
10397 bf_set(lpfc_mbx_rq_destroy_q_id
, &mbox
->u
.mqe
.un
.rq_destroy
.u
.request
,
10399 mbox
->vport
= hrq
->phba
->pport
;
10400 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
10401 rc
= lpfc_sli_issue_mbox(hrq
->phba
, mbox
, MBX_POLL
);
10402 /* The IOCTL status is embedded in the mailbox subheader. */
10403 shdr
= (union lpfc_sli4_cfg_shdr
*)
10404 &mbox
->u
.mqe
.un
.rq_destroy
.header
.cfg_shdr
;
10405 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10406 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10407 if (shdr_status
|| shdr_add_status
|| rc
) {
10408 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10409 "2509 RQ_DESTROY mailbox failed with "
10410 "status x%x add_status x%x, mbx status x%x\n",
10411 shdr_status
, shdr_add_status
, rc
);
10412 if (rc
!= MBX_TIMEOUT
)
10413 mempool_free(mbox
, hrq
->phba
->mbox_mem_pool
);
10416 bf_set(lpfc_mbx_rq_destroy_q_id
, &mbox
->u
.mqe
.un
.rq_destroy
.u
.request
,
10418 rc
= lpfc_sli_issue_mbox(drq
->phba
, mbox
, MBX_POLL
);
10419 shdr
= (union lpfc_sli4_cfg_shdr
*)
10420 &mbox
->u
.mqe
.un
.rq_destroy
.header
.cfg_shdr
;
10421 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10422 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10423 if (shdr_status
|| shdr_add_status
|| rc
) {
10424 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10425 "2510 RQ_DESTROY mailbox failed with "
10426 "status x%x add_status x%x, mbx status x%x\n",
10427 shdr_status
, shdr_add_status
, rc
);
10430 list_del_init(&hrq
->list
);
10431 list_del_init(&drq
->list
);
10432 mempool_free(mbox
, hrq
->phba
->mbox_mem_pool
);
10437 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
10438 * @phba: The virtual port for which this call being executed.
10439 * @pdma_phys_addr0: Physical address of the 1st SGL page.
10440 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
10441 * @xritag: the xritag that ties this io to the SGL pages.
10443 * This routine will post the sgl pages for the IO that has the xritag
10444 * that is in the iocbq structure. The xritag is assigned during iocbq
10445 * creation and persists for as long as the driver is loaded.
10446 * if the caller has fewer than 256 scatter gather segments to map then
10447 * pdma_phys_addr1 should be 0.
10448 * If the caller needs to map more than 256 scatter gather segment then
10449 * pdma_phys_addr1 should be a valid physical address.
10450 * physical address for SGLs must be 64 byte aligned.
10451 * If you are going to map 2 SGL's then the first one must have 256 entries
10452 * the second sgl can have between 1 and 256 entries.
10456 * -ENXIO, -ENOMEM - Failure
10459 lpfc_sli4_post_sgl(struct lpfc_hba
*phba
,
10460 dma_addr_t pdma_phys_addr0
,
10461 dma_addr_t pdma_phys_addr1
,
10464 struct lpfc_mbx_post_sgl_pages
*post_sgl_pages
;
10465 LPFC_MBOXQ_t
*mbox
;
10467 uint32_t shdr_status
, shdr_add_status
;
10468 union lpfc_sli4_cfg_shdr
*shdr
;
10470 if (xritag
== NO_XRI
) {
10471 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
10472 "0364 Invalid param:\n");
10476 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
10480 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
10481 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES
,
10482 sizeof(struct lpfc_mbx_post_sgl_pages
) -
10483 sizeof(struct mbox_header
), LPFC_SLI4_MBX_EMBED
);
10485 post_sgl_pages
= (struct lpfc_mbx_post_sgl_pages
*)
10486 &mbox
->u
.mqe
.un
.post_sgl_pages
;
10487 bf_set(lpfc_post_sgl_pages_xri
, post_sgl_pages
, xritag
);
10488 bf_set(lpfc_post_sgl_pages_xricnt
, post_sgl_pages
, 1);
10490 post_sgl_pages
->sgl_pg_pairs
[0].sgl_pg0_addr_lo
=
10491 cpu_to_le32(putPaddrLow(pdma_phys_addr0
));
10492 post_sgl_pages
->sgl_pg_pairs
[0].sgl_pg0_addr_hi
=
10493 cpu_to_le32(putPaddrHigh(pdma_phys_addr0
));
10495 post_sgl_pages
->sgl_pg_pairs
[0].sgl_pg1_addr_lo
=
10496 cpu_to_le32(putPaddrLow(pdma_phys_addr1
));
10497 post_sgl_pages
->sgl_pg_pairs
[0].sgl_pg1_addr_hi
=
10498 cpu_to_le32(putPaddrHigh(pdma_phys_addr1
));
10499 if (!phba
->sli4_hba
.intr_enable
)
10500 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10502 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, LPFC_MBOX_TMO
);
10503 /* The IOCTL status is embedded in the mailbox subheader. */
10504 shdr
= (union lpfc_sli4_cfg_shdr
*) &post_sgl_pages
->header
.cfg_shdr
;
10505 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10506 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10507 if (rc
!= MBX_TIMEOUT
)
10508 mempool_free(mbox
, phba
->mbox_mem_pool
);
10509 if (shdr_status
|| shdr_add_status
|| rc
) {
10510 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10511 "2511 POST_SGL mailbox failed with "
10512 "status x%x add_status x%x, mbx status x%x\n",
10513 shdr_status
, shdr_add_status
, rc
);
10519 * lpfc_sli4_remove_all_sgl_pages - Post scatter gather list for an XRI to HBA
10520 * @phba: The virtual port for which this call being executed.
10522 * This routine will remove all of the sgl pages registered with the hba.
10526 * -ENXIO, -ENOMEM - Failure
10529 lpfc_sli4_remove_all_sgl_pages(struct lpfc_hba
*phba
)
10531 LPFC_MBOXQ_t
*mbox
;
10533 uint32_t shdr_status
, shdr_add_status
;
10534 union lpfc_sli4_cfg_shdr
*shdr
;
10536 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
10540 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
10541 LPFC_MBOX_OPCODE_FCOE_REMOVE_SGL_PAGES
, 0,
10542 LPFC_SLI4_MBX_EMBED
);
10543 if (!phba
->sli4_hba
.intr_enable
)
10544 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10546 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, LPFC_MBOX_TMO
);
10547 /* The IOCTL status is embedded in the mailbox subheader. */
10548 shdr
= (union lpfc_sli4_cfg_shdr
*)
10549 &mbox
->u
.mqe
.un
.sli4_config
.header
.cfg_shdr
;
10550 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10551 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10552 if (rc
!= MBX_TIMEOUT
)
10553 mempool_free(mbox
, phba
->mbox_mem_pool
);
10554 if (shdr_status
|| shdr_add_status
|| rc
) {
10555 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10556 "2512 REMOVE_ALL_SGL_PAGES mailbox failed with "
10557 "status x%x add_status x%x, mbx status x%x\n",
10558 shdr_status
, shdr_add_status
, rc
);
10565 * lpfc_sli4_next_xritag - Get an xritag for the io
10566 * @phba: Pointer to HBA context object.
10568 * This function gets an xritag for the iocb. If there is no unused xritag
10569 * it will return 0xffff.
10570 * The function returns the allocated xritag if successful, else returns zero.
10571 * Zero is not a valid xritag.
10572 * The caller is not required to hold any lock.
10575 lpfc_sli4_next_xritag(struct lpfc_hba
*phba
)
10579 spin_lock_irq(&phba
->hbalock
);
10580 xritag
= phba
->sli4_hba
.next_xri
;
10581 if ((xritag
!= (uint16_t) -1) && xritag
<
10582 (phba
->sli4_hba
.max_cfg_param
.max_xri
10583 + phba
->sli4_hba
.max_cfg_param
.xri_base
)) {
10584 phba
->sli4_hba
.next_xri
++;
10585 phba
->sli4_hba
.max_cfg_param
.xri_used
++;
10586 spin_unlock_irq(&phba
->hbalock
);
10589 spin_unlock_irq(&phba
->hbalock
);
10590 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
10591 "2004 Failed to allocate XRI.last XRITAG is %d"
10592 " Max XRI is %d, Used XRI is %d\n",
10593 phba
->sli4_hba
.next_xri
,
10594 phba
->sli4_hba
.max_cfg_param
.max_xri
,
10595 phba
->sli4_hba
.max_cfg_param
.xri_used
);
10600 * lpfc_sli4_post_sgl_list - post a block of sgl list to the firmware.
10601 * @phba: pointer to lpfc hba data structure.
10603 * This routine is invoked to post a block of driver's sgl pages to the
10604 * HBA using non-embedded mailbox command. No Lock is held. This routine
10605 * is only called when the driver is loading and after all IO has been
10609 lpfc_sli4_post_sgl_list(struct lpfc_hba
*phba
)
10611 struct lpfc_sglq
*sglq_entry
;
10612 struct lpfc_mbx_post_uembed_sgl_page1
*sgl
;
10613 struct sgl_page_pairs
*sgl_pg_pairs
;
10615 LPFC_MBOXQ_t
*mbox
;
10616 uint32_t reqlen
, alloclen
, pg_pairs
;
10618 uint16_t xritag_start
= 0;
10619 int els_xri_cnt
, rc
= 0;
10620 uint32_t shdr_status
, shdr_add_status
;
10621 union lpfc_sli4_cfg_shdr
*shdr
;
10623 /* The number of sgls to be posted */
10624 els_xri_cnt
= lpfc_sli4_get_els_iocb_cnt(phba
);
10626 reqlen
= els_xri_cnt
* sizeof(struct sgl_page_pairs
) +
10627 sizeof(union lpfc_sli4_cfg_shdr
) + sizeof(uint32_t);
10628 if (reqlen
> PAGE_SIZE
) {
10629 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
10630 "2559 Block sgl registration required DMA "
10631 "size (%d) great than a page\n", reqlen
);
10634 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
10636 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10637 "2560 Failed to allocate mbox cmd memory\n");
10641 /* Allocate DMA memory and set up the non-embedded mailbox command */
10642 alloclen
= lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
10643 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES
, reqlen
,
10644 LPFC_SLI4_MBX_NEMBED
);
10646 if (alloclen
< reqlen
) {
10647 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10648 "0285 Allocated DMA memory size (%d) is "
10649 "less than the requested DMA memory "
10650 "size (%d)\n", alloclen
, reqlen
);
10651 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
10654 /* Get the first SGE entry from the non-embedded DMA memory */
10655 viraddr
= mbox
->sge_array
->addr
[0];
10657 /* Set up the SGL pages in the non-embedded DMA pages */
10658 sgl
= (struct lpfc_mbx_post_uembed_sgl_page1
*)viraddr
;
10659 sgl_pg_pairs
= &sgl
->sgl_pg_pairs
;
10661 for (pg_pairs
= 0; pg_pairs
< els_xri_cnt
; pg_pairs
++) {
10662 sglq_entry
= phba
->sli4_hba
.lpfc_els_sgl_array
[pg_pairs
];
10663 /* Set up the sge entry */
10664 sgl_pg_pairs
->sgl_pg0_addr_lo
=
10665 cpu_to_le32(putPaddrLow(sglq_entry
->phys
));
10666 sgl_pg_pairs
->sgl_pg0_addr_hi
=
10667 cpu_to_le32(putPaddrHigh(sglq_entry
->phys
));
10668 sgl_pg_pairs
->sgl_pg1_addr_lo
=
10669 cpu_to_le32(putPaddrLow(0));
10670 sgl_pg_pairs
->sgl_pg1_addr_hi
=
10671 cpu_to_le32(putPaddrHigh(0));
10672 /* Keep the first xritag on the list */
10674 xritag_start
= sglq_entry
->sli4_xritag
;
10677 bf_set(lpfc_post_sgl_pages_xri
, sgl
, xritag_start
);
10678 bf_set(lpfc_post_sgl_pages_xricnt
, sgl
, els_xri_cnt
);
10679 /* Perform endian conversion if necessary */
10680 sgl
->word0
= cpu_to_le32(sgl
->word0
);
10682 if (!phba
->sli4_hba
.intr_enable
)
10683 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10685 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_SLI4_CONFIG
);
10686 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
10688 shdr
= (union lpfc_sli4_cfg_shdr
*) &sgl
->cfg_shdr
;
10689 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10690 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10691 if (rc
!= MBX_TIMEOUT
)
10692 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
10693 if (shdr_status
|| shdr_add_status
|| rc
) {
10694 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
10695 "2513 POST_SGL_BLOCK mailbox command failed "
10696 "status x%x add_status x%x mbx status x%x\n",
10697 shdr_status
, shdr_add_status
, rc
);
10704 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
10705 * @phba: pointer to lpfc hba data structure.
10706 * @sblist: pointer to scsi buffer list.
10707 * @count: number of scsi buffers on the list.
10709 * This routine is invoked to post a block of @count scsi sgl pages from a
10710 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
10715 lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba
*phba
, struct list_head
*sblist
,
10718 struct lpfc_scsi_buf
*psb
;
10719 struct lpfc_mbx_post_uembed_sgl_page1
*sgl
;
10720 struct sgl_page_pairs
*sgl_pg_pairs
;
10722 LPFC_MBOXQ_t
*mbox
;
10723 uint32_t reqlen
, alloclen
, pg_pairs
;
10725 uint16_t xritag_start
= 0;
10727 uint32_t shdr_status
, shdr_add_status
;
10728 dma_addr_t pdma_phys_bpl1
;
10729 union lpfc_sli4_cfg_shdr
*shdr
;
10731 /* Calculate the requested length of the dma memory */
10732 reqlen
= cnt
* sizeof(struct sgl_page_pairs
) +
10733 sizeof(union lpfc_sli4_cfg_shdr
) + sizeof(uint32_t);
10734 if (reqlen
> PAGE_SIZE
) {
10735 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
10736 "0217 Block sgl registration required DMA "
10737 "size (%d) great than a page\n", reqlen
);
10740 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
10742 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10743 "0283 Failed to allocate mbox cmd memory\n");
10747 /* Allocate DMA memory and set up the non-embedded mailbox command */
10748 alloclen
= lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
10749 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES
, reqlen
,
10750 LPFC_SLI4_MBX_NEMBED
);
10752 if (alloclen
< reqlen
) {
10753 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10754 "2561 Allocated DMA memory size (%d) is "
10755 "less than the requested DMA memory "
10756 "size (%d)\n", alloclen
, reqlen
);
10757 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
10760 /* Get the first SGE entry from the non-embedded DMA memory */
10761 viraddr
= mbox
->sge_array
->addr
[0];
10763 /* Set up the SGL pages in the non-embedded DMA pages */
10764 sgl
= (struct lpfc_mbx_post_uembed_sgl_page1
*)viraddr
;
10765 sgl_pg_pairs
= &sgl
->sgl_pg_pairs
;
10768 list_for_each_entry(psb
, sblist
, list
) {
10769 /* Set up the sge entry */
10770 sgl_pg_pairs
->sgl_pg0_addr_lo
=
10771 cpu_to_le32(putPaddrLow(psb
->dma_phys_bpl
));
10772 sgl_pg_pairs
->sgl_pg0_addr_hi
=
10773 cpu_to_le32(putPaddrHigh(psb
->dma_phys_bpl
));
10774 if (phba
->cfg_sg_dma_buf_size
> SGL_PAGE_SIZE
)
10775 pdma_phys_bpl1
= psb
->dma_phys_bpl
+ SGL_PAGE_SIZE
;
10777 pdma_phys_bpl1
= 0;
10778 sgl_pg_pairs
->sgl_pg1_addr_lo
=
10779 cpu_to_le32(putPaddrLow(pdma_phys_bpl1
));
10780 sgl_pg_pairs
->sgl_pg1_addr_hi
=
10781 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1
));
10782 /* Keep the first xritag on the list */
10784 xritag_start
= psb
->cur_iocbq
.sli4_xritag
;
10788 bf_set(lpfc_post_sgl_pages_xri
, sgl
, xritag_start
);
10789 bf_set(lpfc_post_sgl_pages_xricnt
, sgl
, pg_pairs
);
10790 /* Perform endian conversion if necessary */
10791 sgl
->word0
= cpu_to_le32(sgl
->word0
);
10793 if (!phba
->sli4_hba
.intr_enable
)
10794 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10796 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_SLI4_CONFIG
);
10797 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
10799 shdr
= (union lpfc_sli4_cfg_shdr
*) &sgl
->cfg_shdr
;
10800 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10801 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10802 if (rc
!= MBX_TIMEOUT
)
10803 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
10804 if (shdr_status
|| shdr_add_status
|| rc
) {
10805 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
10806 "2564 POST_SGL_BLOCK mailbox command failed "
10807 "status x%x add_status x%x mbx status x%x\n",
10808 shdr_status
, shdr_add_status
, rc
);
10815 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
10816 * @phba: pointer to lpfc_hba struct that the frame was received on
10817 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
10819 * This function checks the fields in the @fc_hdr to see if the FC frame is a
10820 * valid type of frame that the LPFC driver will handle. This function will
10821 * return a zero if the frame is a valid frame or a non zero value when the
10822 * frame does not pass the check.
10825 lpfc_fc_frame_check(struct lpfc_hba
*phba
, struct fc_frame_header
*fc_hdr
)
10827 char *rctl_names
[] = FC_RCTL_NAMES_INIT
;
10828 char *type_names
[] = FC_TYPE_NAMES_INIT
;
10829 struct fc_vft_header
*fc_vft_hdr
;
10831 switch (fc_hdr
->fh_r_ctl
) {
10832 case FC_RCTL_DD_UNCAT
: /* uncategorized information */
10833 case FC_RCTL_DD_SOL_DATA
: /* solicited data */
10834 case FC_RCTL_DD_UNSOL_CTL
: /* unsolicited control */
10835 case FC_RCTL_DD_SOL_CTL
: /* solicited control or reply */
10836 case FC_RCTL_DD_UNSOL_DATA
: /* unsolicited data */
10837 case FC_RCTL_DD_DATA_DESC
: /* data descriptor */
10838 case FC_RCTL_DD_UNSOL_CMD
: /* unsolicited command */
10839 case FC_RCTL_DD_CMD_STATUS
: /* command status */
10840 case FC_RCTL_ELS_REQ
: /* extended link services request */
10841 case FC_RCTL_ELS_REP
: /* extended link services reply */
10842 case FC_RCTL_ELS4_REQ
: /* FC-4 ELS request */
10843 case FC_RCTL_ELS4_REP
: /* FC-4 ELS reply */
10844 case FC_RCTL_BA_NOP
: /* basic link service NOP */
10845 case FC_RCTL_BA_ABTS
: /* basic link service abort */
10846 case FC_RCTL_BA_RMC
: /* remove connection */
10847 case FC_RCTL_BA_ACC
: /* basic accept */
10848 case FC_RCTL_BA_RJT
: /* basic reject */
10849 case FC_RCTL_BA_PRMT
:
10850 case FC_RCTL_ACK_1
: /* acknowledge_1 */
10851 case FC_RCTL_ACK_0
: /* acknowledge_0 */
10852 case FC_RCTL_P_RJT
: /* port reject */
10853 case FC_RCTL_F_RJT
: /* fabric reject */
10854 case FC_RCTL_P_BSY
: /* port busy */
10855 case FC_RCTL_F_BSY
: /* fabric busy to data frame */
10856 case FC_RCTL_F_BSYL
: /* fabric busy to link control frame */
10857 case FC_RCTL_LCR
: /* link credit reset */
10858 case FC_RCTL_END
: /* end */
10860 case FC_RCTL_VFTH
: /* Virtual Fabric tagging Header */
10861 fc_vft_hdr
= (struct fc_vft_header
*)fc_hdr
;
10862 fc_hdr
= &((struct fc_frame_header
*)fc_vft_hdr
)[1];
10863 return lpfc_fc_frame_check(phba
, fc_hdr
);
10867 switch (fc_hdr
->fh_type
) {
10878 lpfc_printf_log(phba
, KERN_INFO
, LOG_ELS
,
10879 "2538 Received frame rctl:%s type:%s\n",
10880 rctl_names
[fc_hdr
->fh_r_ctl
],
10881 type_names
[fc_hdr
->fh_type
]);
10884 lpfc_printf_log(phba
, KERN_WARNING
, LOG_ELS
,
10885 "2539 Dropped frame rctl:%s type:%s\n",
10886 rctl_names
[fc_hdr
->fh_r_ctl
],
10887 type_names
[fc_hdr
->fh_type
]);
10892 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
10893 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
10895 * This function processes the FC header to retrieve the VFI from the VF
10896 * header, if one exists. This function will return the VFI if one exists
10897 * or 0 if no VSAN Header exists.
10900 lpfc_fc_hdr_get_vfi(struct fc_frame_header
*fc_hdr
)
10902 struct fc_vft_header
*fc_vft_hdr
= (struct fc_vft_header
*)fc_hdr
;
10904 if (fc_hdr
->fh_r_ctl
!= FC_RCTL_VFTH
)
10906 return bf_get(fc_vft_hdr_vf_id
, fc_vft_hdr
);
10910 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
10911 * @phba: Pointer to the HBA structure to search for the vport on
10912 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
10913 * @fcfi: The FC Fabric ID that the frame came from
10915 * This function searches the @phba for a vport that matches the content of the
10916 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
10917 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
10918 * returns the matching vport pointer or NULL if unable to match frame to a
10921 static struct lpfc_vport
*
10922 lpfc_fc_frame_to_vport(struct lpfc_hba
*phba
, struct fc_frame_header
*fc_hdr
,
10925 struct lpfc_vport
**vports
;
10926 struct lpfc_vport
*vport
= NULL
;
10928 uint32_t did
= (fc_hdr
->fh_d_id
[0] << 16 |
10929 fc_hdr
->fh_d_id
[1] << 8 |
10930 fc_hdr
->fh_d_id
[2]);
10932 vports
= lpfc_create_vport_work_array(phba
);
10933 if (vports
!= NULL
)
10934 for (i
= 0; i
<= phba
->max_vpi
&& vports
[i
] != NULL
; i
++) {
10935 if (phba
->fcf
.fcfi
== fcfi
&&
10936 vports
[i
]->vfi
== lpfc_fc_hdr_get_vfi(fc_hdr
) &&
10937 vports
[i
]->fc_myDID
== did
) {
10942 lpfc_destroy_vport_work_array(phba
, vports
);
10947 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
10948 * @vport: The vport to work on.
10950 * This function updates the receive sequence time stamp for this vport. The
10951 * receive sequence time stamp indicates the time that the last frame of the
10952 * the sequence that has been idle for the longest amount of time was received.
10953 * the driver uses this time stamp to indicate if any received sequences have
10957 lpfc_update_rcv_time_stamp(struct lpfc_vport
*vport
)
10959 struct lpfc_dmabuf
*h_buf
;
10960 struct hbq_dmabuf
*dmabuf
= NULL
;
10962 /* get the oldest sequence on the rcv list */
10963 h_buf
= list_get_first(&vport
->rcv_buffer_list
,
10964 struct lpfc_dmabuf
, list
);
10967 dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
10968 vport
->rcv_buffer_time_stamp
= dmabuf
->time_stamp
;
10972 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
10973 * @vport: The vport that the received sequences were sent to.
10975 * This function cleans up all outstanding received sequences. This is called
10976 * by the driver when a link event or user action invalidates all the received
10980 lpfc_cleanup_rcv_buffers(struct lpfc_vport
*vport
)
10982 struct lpfc_dmabuf
*h_buf
, *hnext
;
10983 struct lpfc_dmabuf
*d_buf
, *dnext
;
10984 struct hbq_dmabuf
*dmabuf
= NULL
;
10986 /* start with the oldest sequence on the rcv list */
10987 list_for_each_entry_safe(h_buf
, hnext
, &vport
->rcv_buffer_list
, list
) {
10988 dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
10989 list_del_init(&dmabuf
->hbuf
.list
);
10990 list_for_each_entry_safe(d_buf
, dnext
,
10991 &dmabuf
->dbuf
.list
, list
) {
10992 list_del_init(&d_buf
->list
);
10993 lpfc_in_buf_free(vport
->phba
, d_buf
);
10995 lpfc_in_buf_free(vport
->phba
, &dmabuf
->dbuf
);
11000 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
11001 * @vport: The vport that the received sequences were sent to.
11003 * This function determines whether any received sequences have timed out by
11004 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
11005 * indicates that there is at least one timed out sequence this routine will
11006 * go through the received sequences one at a time from most inactive to most
11007 * active to determine which ones need to be cleaned up. Once it has determined
11008 * that a sequence needs to be cleaned up it will simply free up the resources
11009 * without sending an abort.
11012 lpfc_rcv_seq_check_edtov(struct lpfc_vport
*vport
)
11014 struct lpfc_dmabuf
*h_buf
, *hnext
;
11015 struct lpfc_dmabuf
*d_buf
, *dnext
;
11016 struct hbq_dmabuf
*dmabuf
= NULL
;
11017 unsigned long timeout
;
11018 int abort_count
= 0;
11020 timeout
= (msecs_to_jiffies(vport
->phba
->fc_edtov
) +
11021 vport
->rcv_buffer_time_stamp
);
11022 if (list_empty(&vport
->rcv_buffer_list
) ||
11023 time_before(jiffies
, timeout
))
11025 /* start with the oldest sequence on the rcv list */
11026 list_for_each_entry_safe(h_buf
, hnext
, &vport
->rcv_buffer_list
, list
) {
11027 dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
11028 timeout
= (msecs_to_jiffies(vport
->phba
->fc_edtov
) +
11029 dmabuf
->time_stamp
);
11030 if (time_before(jiffies
, timeout
))
11033 list_del_init(&dmabuf
->hbuf
.list
);
11034 list_for_each_entry_safe(d_buf
, dnext
,
11035 &dmabuf
->dbuf
.list
, list
) {
11036 list_del_init(&d_buf
->list
);
11037 lpfc_in_buf_free(vport
->phba
, d_buf
);
11039 lpfc_in_buf_free(vport
->phba
, &dmabuf
->dbuf
);
11042 lpfc_update_rcv_time_stamp(vport
);
11046 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
11047 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
11049 * This function searches through the existing incomplete sequences that have
11050 * been sent to this @vport. If the frame matches one of the incomplete
11051 * sequences then the dbuf in the @dmabuf is added to the list of frames that
11052 * make up that sequence. If no sequence is found that matches this frame then
11053 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
11054 * This function returns a pointer to the first dmabuf in the sequence list that
11055 * the frame was linked to.
11057 static struct hbq_dmabuf
*
11058 lpfc_fc_frame_add(struct lpfc_vport
*vport
, struct hbq_dmabuf
*dmabuf
)
11060 struct fc_frame_header
*new_hdr
;
11061 struct fc_frame_header
*temp_hdr
;
11062 struct lpfc_dmabuf
*d_buf
;
11063 struct lpfc_dmabuf
*h_buf
;
11064 struct hbq_dmabuf
*seq_dmabuf
= NULL
;
11065 struct hbq_dmabuf
*temp_dmabuf
= NULL
;
11067 INIT_LIST_HEAD(&dmabuf
->dbuf
.list
);
11068 dmabuf
->time_stamp
= jiffies
;
11069 new_hdr
= (struct fc_frame_header
*)dmabuf
->hbuf
.virt
;
11070 /* Use the hdr_buf to find the sequence that this frame belongs to */
11071 list_for_each_entry(h_buf
, &vport
->rcv_buffer_list
, list
) {
11072 temp_hdr
= (struct fc_frame_header
*)h_buf
->virt
;
11073 if ((temp_hdr
->fh_seq_id
!= new_hdr
->fh_seq_id
) ||
11074 (temp_hdr
->fh_ox_id
!= new_hdr
->fh_ox_id
) ||
11075 (memcmp(&temp_hdr
->fh_s_id
, &new_hdr
->fh_s_id
, 3)))
11077 /* found a pending sequence that matches this frame */
11078 seq_dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
11083 * This indicates first frame received for this sequence.
11084 * Queue the buffer on the vport's rcv_buffer_list.
11086 list_add_tail(&dmabuf
->hbuf
.list
, &vport
->rcv_buffer_list
);
11087 lpfc_update_rcv_time_stamp(vport
);
11090 temp_hdr
= seq_dmabuf
->hbuf
.virt
;
11091 if (be16_to_cpu(new_hdr
->fh_seq_cnt
) <
11092 be16_to_cpu(temp_hdr
->fh_seq_cnt
)) {
11093 list_del_init(&seq_dmabuf
->hbuf
.list
);
11094 list_add_tail(&dmabuf
->hbuf
.list
, &vport
->rcv_buffer_list
);
11095 list_add_tail(&dmabuf
->dbuf
.list
, &seq_dmabuf
->dbuf
.list
);
11096 lpfc_update_rcv_time_stamp(vport
);
11099 /* move this sequence to the tail to indicate a young sequence */
11100 list_move_tail(&seq_dmabuf
->hbuf
.list
, &vport
->rcv_buffer_list
);
11101 seq_dmabuf
->time_stamp
= jiffies
;
11102 lpfc_update_rcv_time_stamp(vport
);
11103 if (list_empty(&seq_dmabuf
->dbuf
.list
)) {
11104 temp_hdr
= dmabuf
->hbuf
.virt
;
11105 list_add_tail(&dmabuf
->dbuf
.list
, &seq_dmabuf
->dbuf
.list
);
11108 /* find the correct place in the sequence to insert this frame */
11109 list_for_each_entry_reverse(d_buf
, &seq_dmabuf
->dbuf
.list
, list
) {
11110 temp_dmabuf
= container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
11111 temp_hdr
= (struct fc_frame_header
*)temp_dmabuf
->hbuf
.virt
;
11113 * If the frame's sequence count is greater than the frame on
11114 * the list then insert the frame right after this frame
11116 if (be16_to_cpu(new_hdr
->fh_seq_cnt
) >
11117 be16_to_cpu(temp_hdr
->fh_seq_cnt
)) {
11118 list_add(&dmabuf
->dbuf
.list
, &temp_dmabuf
->dbuf
.list
);
11126 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
11127 * @vport: pointer to a vitural port
11128 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11130 * This function tries to abort from the partially assembed sequence, described
11131 * by the information from basic abbort @dmabuf. It checks to see whether such
11132 * partially assembled sequence held by the driver. If so, it shall free up all
11133 * the frames from the partially assembled sequence.
11136 * true -- if there is matching partially assembled sequence present and all
11137 * the frames freed with the sequence;
11138 * false -- if there is no matching partially assembled sequence present so
11139 * nothing got aborted in the lower layer driver
11142 lpfc_sli4_abort_partial_seq(struct lpfc_vport
*vport
,
11143 struct hbq_dmabuf
*dmabuf
)
11145 struct fc_frame_header
*new_hdr
;
11146 struct fc_frame_header
*temp_hdr
;
11147 struct lpfc_dmabuf
*d_buf
, *n_buf
, *h_buf
;
11148 struct hbq_dmabuf
*seq_dmabuf
= NULL
;
11150 /* Use the hdr_buf to find the sequence that matches this frame */
11151 INIT_LIST_HEAD(&dmabuf
->dbuf
.list
);
11152 INIT_LIST_HEAD(&dmabuf
->hbuf
.list
);
11153 new_hdr
= (struct fc_frame_header
*)dmabuf
->hbuf
.virt
;
11154 list_for_each_entry(h_buf
, &vport
->rcv_buffer_list
, list
) {
11155 temp_hdr
= (struct fc_frame_header
*)h_buf
->virt
;
11156 if ((temp_hdr
->fh_seq_id
!= new_hdr
->fh_seq_id
) ||
11157 (temp_hdr
->fh_ox_id
!= new_hdr
->fh_ox_id
) ||
11158 (memcmp(&temp_hdr
->fh_s_id
, &new_hdr
->fh_s_id
, 3)))
11160 /* found a pending sequence that matches this frame */
11161 seq_dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
11165 /* Free up all the frames from the partially assembled sequence */
11167 list_for_each_entry_safe(d_buf
, n_buf
,
11168 &seq_dmabuf
->dbuf
.list
, list
) {
11169 list_del_init(&d_buf
->list
);
11170 lpfc_in_buf_free(vport
->phba
, d_buf
);
11178 * lpfc_sli4_seq_abort_acc_cmpl - Accept seq abort iocb complete handler
11179 * @phba: Pointer to HBA context object.
11180 * @cmd_iocbq: pointer to the command iocbq structure.
11181 * @rsp_iocbq: pointer to the response iocbq structure.
11183 * This function handles the sequence abort accept iocb command complete
11184 * event. It properly releases the memory allocated to the sequence abort
11188 lpfc_sli4_seq_abort_acc_cmpl(struct lpfc_hba
*phba
,
11189 struct lpfc_iocbq
*cmd_iocbq
,
11190 struct lpfc_iocbq
*rsp_iocbq
)
11193 lpfc_sli_release_iocbq(phba
, cmd_iocbq
);
11197 * lpfc_sli4_seq_abort_acc - Accept sequence abort
11198 * @phba: Pointer to HBA context object.
11199 * @fc_hdr: pointer to a FC frame header.
11201 * This function sends a basic accept to a previous unsol sequence abort
11202 * event after aborting the sequence handling.
11205 lpfc_sli4_seq_abort_acc(struct lpfc_hba
*phba
,
11206 struct fc_frame_header
*fc_hdr
)
11208 struct lpfc_iocbq
*ctiocb
= NULL
;
11209 struct lpfc_nodelist
*ndlp
;
11210 uint16_t oxid
, rxid
;
11211 uint32_t sid
, fctl
;
11214 if (!lpfc_is_link_up(phba
))
11217 sid
= sli4_sid_from_fc_hdr(fc_hdr
);
11218 oxid
= be16_to_cpu(fc_hdr
->fh_ox_id
);
11219 rxid
= be16_to_cpu(fc_hdr
->fh_rx_id
);
11221 ndlp
= lpfc_findnode_did(phba
->pport
, sid
);
11223 lpfc_printf_log(phba
, KERN_WARNING
, LOG_ELS
,
11224 "1268 Find ndlp returned NULL for oxid:x%x "
11225 "SID:x%x\n", oxid
, sid
);
11229 /* Allocate buffer for acc iocb */
11230 ctiocb
= lpfc_sli_get_iocbq(phba
);
11234 /* Extract the F_CTL field from FC_HDR */
11235 fctl
= sli4_fctl_from_fc_hdr(fc_hdr
);
11237 icmd
= &ctiocb
->iocb
;
11238 icmd
->un
.xseq64
.bdl
.bdeSize
= 0;
11239 icmd
->un
.xseq64
.bdl
.ulpIoTag32
= 0;
11240 icmd
->un
.xseq64
.w5
.hcsw
.Dfctl
= 0;
11241 icmd
->un
.xseq64
.w5
.hcsw
.Rctl
= FC_RCTL_BA_ACC
;
11242 icmd
->un
.xseq64
.w5
.hcsw
.Type
= FC_TYPE_BLS
;
11244 /* Fill in the rest of iocb fields */
11245 icmd
->ulpCommand
= CMD_XMIT_BLS_RSP64_CX
;
11246 icmd
->ulpBdeCount
= 0;
11248 icmd
->ulpClass
= CLASS3
;
11249 icmd
->ulpContext
= ndlp
->nlp_rpi
;
11251 ctiocb
->iocb_cmpl
= NULL
;
11252 ctiocb
->vport
= phba
->pport
;
11253 ctiocb
->iocb_cmpl
= lpfc_sli4_seq_abort_acc_cmpl
;
11255 if (fctl
& FC_FC_EX_CTX
) {
11256 /* ABTS sent by responder to CT exchange, construction
11257 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
11258 * field and RX_ID from ABTS for RX_ID field.
11260 bf_set(lpfc_abts_orig
, &icmd
->un
.bls_acc
, LPFC_ABTS_UNSOL_RSP
);
11261 bf_set(lpfc_abts_rxid
, &icmd
->un
.bls_acc
, rxid
);
11262 ctiocb
->sli4_xritag
= oxid
;
11264 /* ABTS sent by initiator to CT exchange, construction
11265 * of BA_ACC will need to allocate a new XRI as for the
11266 * XRI_TAG and RX_ID fields.
11268 bf_set(lpfc_abts_orig
, &icmd
->un
.bls_acc
, LPFC_ABTS_UNSOL_INT
);
11269 bf_set(lpfc_abts_rxid
, &icmd
->un
.bls_acc
, NO_XRI
);
11270 ctiocb
->sli4_xritag
= NO_XRI
;
11272 bf_set(lpfc_abts_oxid
, &icmd
->un
.bls_acc
, oxid
);
11274 /* Xmit CT abts accept on exchange <xid> */
11275 lpfc_printf_log(phba
, KERN_INFO
, LOG_ELS
,
11276 "1200 Xmit CT ABTS ACC on exchange x%x Data: x%x\n",
11277 CMD_XMIT_BLS_RSP64_CX
, phba
->link_state
);
11278 lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, ctiocb
, 0);
11282 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
11283 * @vport: Pointer to the vport on which this sequence was received
11284 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11286 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
11287 * receive sequence is only partially assembed by the driver, it shall abort
11288 * the partially assembled frames for the sequence. Otherwise, if the
11289 * unsolicited receive sequence has been completely assembled and passed to
11290 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
11291 * unsolicited sequence has been aborted. After that, it will issue a basic
11292 * accept to accept the abort.
11295 lpfc_sli4_handle_unsol_abort(struct lpfc_vport
*vport
,
11296 struct hbq_dmabuf
*dmabuf
)
11298 struct lpfc_hba
*phba
= vport
->phba
;
11299 struct fc_frame_header fc_hdr
;
11303 /* Make a copy of fc_hdr before the dmabuf being released */
11304 memcpy(&fc_hdr
, dmabuf
->hbuf
.virt
, sizeof(struct fc_frame_header
));
11305 fctl
= sli4_fctl_from_fc_hdr(&fc_hdr
);
11307 if (fctl
& FC_FC_EX_CTX
) {
11309 * ABTS sent by responder to exchange, just free the buffer
11311 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
11314 * ABTS sent by initiator to exchange, need to do cleanup
11316 /* Try to abort partially assembled seq */
11317 abts_par
= lpfc_sli4_abort_partial_seq(vport
, dmabuf
);
11319 /* Send abort to ULP if partially seq abort failed */
11320 if (abts_par
== false)
11321 lpfc_sli4_send_seq_to_ulp(vport
, dmabuf
);
11323 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
11325 /* Send basic accept (BA_ACC) to the abort requester */
11326 lpfc_sli4_seq_abort_acc(phba
, &fc_hdr
);
11330 * lpfc_seq_complete - Indicates if a sequence is complete
11331 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11333 * This function checks the sequence, starting with the frame described by
11334 * @dmabuf, to see if all the frames associated with this sequence are present.
11335 * the frames associated with this sequence are linked to the @dmabuf using the
11336 * dbuf list. This function looks for two major things. 1) That the first frame
11337 * has a sequence count of zero. 2) There is a frame with last frame of sequence
11338 * set. 3) That there are no holes in the sequence count. The function will
11339 * return 1 when the sequence is complete, otherwise it will return 0.
11342 lpfc_seq_complete(struct hbq_dmabuf
*dmabuf
)
11344 struct fc_frame_header
*hdr
;
11345 struct lpfc_dmabuf
*d_buf
;
11346 struct hbq_dmabuf
*seq_dmabuf
;
11350 hdr
= (struct fc_frame_header
*)dmabuf
->hbuf
.virt
;
11351 /* make sure first fame of sequence has a sequence count of zero */
11352 if (hdr
->fh_seq_cnt
!= seq_count
)
11354 fctl
= (hdr
->fh_f_ctl
[0] << 16 |
11355 hdr
->fh_f_ctl
[1] << 8 |
11357 /* If last frame of sequence we can return success. */
11358 if (fctl
& FC_FC_END_SEQ
)
11360 list_for_each_entry(d_buf
, &dmabuf
->dbuf
.list
, list
) {
11361 seq_dmabuf
= container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
11362 hdr
= (struct fc_frame_header
*)seq_dmabuf
->hbuf
.virt
;
11363 /* If there is a hole in the sequence count then fail. */
11364 if (++seq_count
!= be16_to_cpu(hdr
->fh_seq_cnt
))
11366 fctl
= (hdr
->fh_f_ctl
[0] << 16 |
11367 hdr
->fh_f_ctl
[1] << 8 |
11369 /* If last frame of sequence we can return success. */
11370 if (fctl
& FC_FC_END_SEQ
)
11377 * lpfc_prep_seq - Prep sequence for ULP processing
11378 * @vport: Pointer to the vport on which this sequence was received
11379 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11381 * This function takes a sequence, described by a list of frames, and creates
11382 * a list of iocbq structures to describe the sequence. This iocbq list will be
11383 * used to issue to the generic unsolicited sequence handler. This routine
11384 * returns a pointer to the first iocbq in the list. If the function is unable
11385 * to allocate an iocbq then it throw out the received frames that were not
11386 * able to be described and return a pointer to the first iocbq. If unable to
11387 * allocate any iocbqs (including the first) this function will return NULL.
11389 static struct lpfc_iocbq
*
11390 lpfc_prep_seq(struct lpfc_vport
*vport
, struct hbq_dmabuf
*seq_dmabuf
)
11392 struct lpfc_dmabuf
*d_buf
, *n_buf
;
11393 struct lpfc_iocbq
*first_iocbq
, *iocbq
;
11394 struct fc_frame_header
*fc_hdr
;
11396 struct ulp_bde64
*pbde
;
11398 fc_hdr
= (struct fc_frame_header
*)seq_dmabuf
->hbuf
.virt
;
11399 /* remove from receive buffer list */
11400 list_del_init(&seq_dmabuf
->hbuf
.list
);
11401 lpfc_update_rcv_time_stamp(vport
);
11402 /* get the Remote Port's SID */
11403 sid
= sli4_sid_from_fc_hdr(fc_hdr
);
11404 /* Get an iocbq struct to fill in. */
11405 first_iocbq
= lpfc_sli_get_iocbq(vport
->phba
);
11407 /* Initialize the first IOCB. */
11408 first_iocbq
->iocb
.unsli3
.rcvsli3
.acc_len
= 0;
11409 first_iocbq
->iocb
.ulpStatus
= IOSTAT_SUCCESS
;
11410 first_iocbq
->iocb
.ulpCommand
= CMD_IOCB_RCV_SEQ64_CX
;
11411 first_iocbq
->iocb
.ulpContext
= be16_to_cpu(fc_hdr
->fh_ox_id
);
11412 first_iocbq
->iocb
.unsli3
.rcvsli3
.vpi
=
11413 vport
->vpi
+ vport
->phba
->vpi_base
;
11414 /* put the first buffer into the first IOCBq */
11415 first_iocbq
->context2
= &seq_dmabuf
->dbuf
;
11416 first_iocbq
->context3
= NULL
;
11417 first_iocbq
->iocb
.ulpBdeCount
= 1;
11418 first_iocbq
->iocb
.un
.cont64
[0].tus
.f
.bdeSize
=
11419 LPFC_DATA_BUF_SIZE
;
11420 first_iocbq
->iocb
.un
.rcvels
.remoteID
= sid
;
11421 first_iocbq
->iocb
.unsli3
.rcvsli3
.acc_len
+=
11422 bf_get(lpfc_rcqe_length
,
11423 &seq_dmabuf
->cq_event
.cqe
.rcqe_cmpl
);
11425 iocbq
= first_iocbq
;
11427 * Each IOCBq can have two Buffers assigned, so go through the list
11428 * of buffers for this sequence and save two buffers in each IOCBq
11430 list_for_each_entry_safe(d_buf
, n_buf
, &seq_dmabuf
->dbuf
.list
, list
) {
11432 lpfc_in_buf_free(vport
->phba
, d_buf
);
11435 if (!iocbq
->context3
) {
11436 iocbq
->context3
= d_buf
;
11437 iocbq
->iocb
.ulpBdeCount
++;
11438 pbde
= (struct ulp_bde64
*)
11439 &iocbq
->iocb
.unsli3
.sli3Words
[4];
11440 pbde
->tus
.f
.bdeSize
= LPFC_DATA_BUF_SIZE
;
11441 first_iocbq
->iocb
.unsli3
.rcvsli3
.acc_len
+=
11442 bf_get(lpfc_rcqe_length
,
11443 &seq_dmabuf
->cq_event
.cqe
.rcqe_cmpl
);
11445 iocbq
= lpfc_sli_get_iocbq(vport
->phba
);
11448 first_iocbq
->iocb
.ulpStatus
=
11449 IOSTAT_FCP_RSP_ERROR
;
11450 first_iocbq
->iocb
.un
.ulpWord
[4] =
11451 IOERR_NO_RESOURCES
;
11453 lpfc_in_buf_free(vport
->phba
, d_buf
);
11456 iocbq
->context2
= d_buf
;
11457 iocbq
->context3
= NULL
;
11458 iocbq
->iocb
.ulpBdeCount
= 1;
11459 iocbq
->iocb
.un
.cont64
[0].tus
.f
.bdeSize
=
11460 LPFC_DATA_BUF_SIZE
;
11461 first_iocbq
->iocb
.unsli3
.rcvsli3
.acc_len
+=
11462 bf_get(lpfc_rcqe_length
,
11463 &seq_dmabuf
->cq_event
.cqe
.rcqe_cmpl
);
11464 iocbq
->iocb
.un
.rcvels
.remoteID
= sid
;
11465 list_add_tail(&iocbq
->list
, &first_iocbq
->list
);
11468 return first_iocbq
;
11472 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport
*vport
,
11473 struct hbq_dmabuf
*seq_dmabuf
)
11475 struct fc_frame_header
*fc_hdr
;
11476 struct lpfc_iocbq
*iocbq
, *curr_iocb
, *next_iocb
;
11477 struct lpfc_hba
*phba
= vport
->phba
;
11479 fc_hdr
= (struct fc_frame_header
*)seq_dmabuf
->hbuf
.virt
;
11480 iocbq
= lpfc_prep_seq(vport
, seq_dmabuf
);
11482 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11483 "2707 Ring %d handler: Failed to allocate "
11484 "iocb Rctl x%x Type x%x received\n",
11486 fc_hdr
->fh_r_ctl
, fc_hdr
->fh_type
);
11489 if (!lpfc_complete_unsol_iocb(phba
,
11490 &phba
->sli
.ring
[LPFC_ELS_RING
],
11491 iocbq
, fc_hdr
->fh_r_ctl
,
11493 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
11494 "2540 Ring %d handler: unexpected Rctl "
11495 "x%x Type x%x received\n",
11497 fc_hdr
->fh_r_ctl
, fc_hdr
->fh_type
);
11499 /* Free iocb created in lpfc_prep_seq */
11500 list_for_each_entry_safe(curr_iocb
, next_iocb
,
11501 &iocbq
->list
, list
) {
11502 list_del_init(&curr_iocb
->list
);
11503 lpfc_sli_release_iocbq(phba
, curr_iocb
);
11505 lpfc_sli_release_iocbq(phba
, iocbq
);
11509 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
11510 * @phba: Pointer to HBA context object.
11512 * This function is called with no lock held. This function processes all
11513 * the received buffers and gives it to upper layers when a received buffer
11514 * indicates that it is the final frame in the sequence. The interrupt
11515 * service routine processes received buffers at interrupt contexts and adds
11516 * received dma buffers to the rb_pend_list queue and signals the worker thread.
11517 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
11518 * appropriate receive function when the final frame in a sequence is received.
11521 lpfc_sli4_handle_received_buffer(struct lpfc_hba
*phba
,
11522 struct hbq_dmabuf
*dmabuf
)
11524 struct hbq_dmabuf
*seq_dmabuf
;
11525 struct fc_frame_header
*fc_hdr
;
11526 struct lpfc_vport
*vport
;
11529 /* Process each received buffer */
11530 fc_hdr
= (struct fc_frame_header
*)dmabuf
->hbuf
.virt
;
11531 /* check to see if this a valid type of frame */
11532 if (lpfc_fc_frame_check(phba
, fc_hdr
)) {
11533 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
11536 fcfi
= bf_get(lpfc_rcqe_fcf_id
, &dmabuf
->cq_event
.cqe
.rcqe_cmpl
);
11537 vport
= lpfc_fc_frame_to_vport(phba
, fc_hdr
, fcfi
);
11538 if (!vport
|| !(vport
->vpi_state
& LPFC_VPI_REGISTERED
)) {
11539 /* throw out the frame */
11540 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
11543 /* Handle the basic abort sequence (BA_ABTS) event */
11544 if (fc_hdr
->fh_r_ctl
== FC_RCTL_BA_ABTS
) {
11545 lpfc_sli4_handle_unsol_abort(vport
, dmabuf
);
11549 /* Link this frame */
11550 seq_dmabuf
= lpfc_fc_frame_add(vport
, dmabuf
);
11552 /* unable to add frame to vport - throw it out */
11553 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
11556 /* If not last frame in sequence continue processing frames. */
11557 if (!lpfc_seq_complete(seq_dmabuf
))
11560 /* Send the complete sequence to the upper layer protocol */
11561 lpfc_sli4_send_seq_to_ulp(vport
, seq_dmabuf
);
11565 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
11566 * @phba: pointer to lpfc hba data structure.
11568 * This routine is invoked to post rpi header templates to the
11569 * HBA consistent with the SLI-4 interface spec. This routine
11570 * posts a PAGE_SIZE memory region to the port to hold up to
11571 * PAGE_SIZE modulo 64 rpi context headers.
11573 * This routine does not require any locks. It's usage is expected
11574 * to be driver load or reset recovery when the driver is
11579 * EIO - The mailbox failed to complete successfully.
11580 * When this error occurs, the driver is not guaranteed
11581 * to have any rpi regions posted to the device and
11582 * must either attempt to repost the regions or take a
11586 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba
*phba
)
11588 struct lpfc_rpi_hdr
*rpi_page
;
11591 /* Post all rpi memory regions to the port. */
11592 list_for_each_entry(rpi_page
, &phba
->sli4_hba
.lpfc_rpi_hdr_list
, list
) {
11593 rc
= lpfc_sli4_post_rpi_hdr(phba
, rpi_page
);
11594 if (rc
!= MBX_SUCCESS
) {
11595 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11596 "2008 Error %d posting all rpi "
11607 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
11608 * @phba: pointer to lpfc hba data structure.
11609 * @rpi_page: pointer to the rpi memory region.
11611 * This routine is invoked to post a single rpi header to the
11612 * HBA consistent with the SLI-4 interface spec. This memory region
11613 * maps up to 64 rpi context regions.
11617 * ENOMEM - No available memory
11618 * EIO - The mailbox failed to complete successfully.
11621 lpfc_sli4_post_rpi_hdr(struct lpfc_hba
*phba
, struct lpfc_rpi_hdr
*rpi_page
)
11623 LPFC_MBOXQ_t
*mboxq
;
11624 struct lpfc_mbx_post_hdr_tmpl
*hdr_tmpl
;
11627 uint32_t shdr_status
, shdr_add_status
;
11628 union lpfc_sli4_cfg_shdr
*shdr
;
11630 /* The port is notified of the header region via a mailbox command. */
11631 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
11633 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11634 "2001 Unable to allocate memory for issuing "
11635 "SLI_CONFIG_SPECIAL mailbox command\n");
11639 /* Post all rpi memory regions to the port. */
11640 hdr_tmpl
= &mboxq
->u
.mqe
.un
.hdr_tmpl
;
11641 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_SLI4_CONFIG
);
11642 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_FCOE
,
11643 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE
,
11644 sizeof(struct lpfc_mbx_post_hdr_tmpl
) -
11645 sizeof(struct mbox_header
), LPFC_SLI4_MBX_EMBED
);
11646 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt
,
11647 hdr_tmpl
, rpi_page
->page_count
);
11648 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset
, hdr_tmpl
,
11649 rpi_page
->start_rpi
);
11650 hdr_tmpl
->rpi_paddr_lo
= putPaddrLow(rpi_page
->dmabuf
->phys
);
11651 hdr_tmpl
->rpi_paddr_hi
= putPaddrHigh(rpi_page
->dmabuf
->phys
);
11652 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
11653 shdr
= (union lpfc_sli4_cfg_shdr
*) &hdr_tmpl
->header
.cfg_shdr
;
11654 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
11655 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
11656 if (rc
!= MBX_TIMEOUT
)
11657 mempool_free(mboxq
, phba
->mbox_mem_pool
);
11658 if (shdr_status
|| shdr_add_status
|| rc
) {
11659 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
11660 "2514 POST_RPI_HDR mailbox failed with "
11661 "status x%x add_status x%x, mbx status x%x\n",
11662 shdr_status
, shdr_add_status
, rc
);
11669 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
11670 * @phba: pointer to lpfc hba data structure.
11672 * This routine is invoked to post rpi header templates to the
11673 * HBA consistent with the SLI-4 interface spec. This routine
11674 * posts a PAGE_SIZE memory region to the port to hold up to
11675 * PAGE_SIZE modulo 64 rpi context headers.
11678 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
11679 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
11682 lpfc_sli4_alloc_rpi(struct lpfc_hba
*phba
)
11685 uint16_t max_rpi
, rpi_base
, rpi_limit
;
11686 uint16_t rpi_remaining
;
11687 struct lpfc_rpi_hdr
*rpi_hdr
;
11689 max_rpi
= phba
->sli4_hba
.max_cfg_param
.max_rpi
;
11690 rpi_base
= phba
->sli4_hba
.max_cfg_param
.rpi_base
;
11691 rpi_limit
= phba
->sli4_hba
.next_rpi
;
11694 * The valid rpi range is not guaranteed to be zero-based. Start
11695 * the search at the rpi_base as reported by the port.
11697 spin_lock_irq(&phba
->hbalock
);
11698 rpi
= find_next_zero_bit(phba
->sli4_hba
.rpi_bmask
, rpi_limit
, rpi_base
);
11699 if (rpi
>= rpi_limit
|| rpi
< rpi_base
)
11700 rpi
= LPFC_RPI_ALLOC_ERROR
;
11702 set_bit(rpi
, phba
->sli4_hba
.rpi_bmask
);
11703 phba
->sli4_hba
.max_cfg_param
.rpi_used
++;
11704 phba
->sli4_hba
.rpi_count
++;
11708 * Don't try to allocate more rpi header regions if the device limit
11709 * on available rpis max has been exhausted.
11711 if ((rpi
== LPFC_RPI_ALLOC_ERROR
) &&
11712 (phba
->sli4_hba
.rpi_count
>= max_rpi
)) {
11713 spin_unlock_irq(&phba
->hbalock
);
11718 * If the driver is running low on rpi resources, allocate another
11719 * page now. Note that the next_rpi value is used because
11720 * it represents how many are actually in use whereas max_rpi notes
11721 * how many are supported max by the device.
11723 rpi_remaining
= phba
->sli4_hba
.next_rpi
- rpi_base
-
11724 phba
->sli4_hba
.rpi_count
;
11725 spin_unlock_irq(&phba
->hbalock
);
11726 if (rpi_remaining
< LPFC_RPI_LOW_WATER_MARK
) {
11727 rpi_hdr
= lpfc_sli4_create_rpi_hdr(phba
);
11729 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11730 "2002 Error Could not grow rpi "
11733 lpfc_sli4_post_rpi_hdr(phba
, rpi_hdr
);
11741 * lpfc_sli4_free_rpi - Release an rpi for reuse.
11742 * @phba: pointer to lpfc hba data structure.
11744 * This routine is invoked to release an rpi to the pool of
11745 * available rpis maintained by the driver.
11748 lpfc_sli4_free_rpi(struct lpfc_hba
*phba
, int rpi
)
11750 spin_lock_irq(&phba
->hbalock
);
11751 clear_bit(rpi
, phba
->sli4_hba
.rpi_bmask
);
11752 phba
->sli4_hba
.rpi_count
--;
11753 phba
->sli4_hba
.max_cfg_param
.rpi_used
--;
11754 spin_unlock_irq(&phba
->hbalock
);
11758 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
11759 * @phba: pointer to lpfc hba data structure.
11761 * This routine is invoked to remove the memory region that
11762 * provided rpi via a bitmask.
11765 lpfc_sli4_remove_rpis(struct lpfc_hba
*phba
)
11767 kfree(phba
->sli4_hba
.rpi_bmask
);
11771 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
11772 * @phba: pointer to lpfc hba data structure.
11774 * This routine is invoked to remove the memory region that
11775 * provided rpi via a bitmask.
11778 lpfc_sli4_resume_rpi(struct lpfc_nodelist
*ndlp
)
11780 LPFC_MBOXQ_t
*mboxq
;
11781 struct lpfc_hba
*phba
= ndlp
->phba
;
11784 /* The port is notified of the header region via a mailbox command. */
11785 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
11789 /* Post all rpi memory regions to the port. */
11790 lpfc_resume_rpi(mboxq
, ndlp
);
11791 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
11792 if (rc
== MBX_NOT_FINISHED
) {
11793 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11794 "2010 Resume RPI Mailbox failed "
11795 "status %d, mbxStatus x%x\n", rc
,
11796 bf_get(lpfc_mqe_status
, &mboxq
->u
.mqe
));
11797 mempool_free(mboxq
, phba
->mbox_mem_pool
);
11804 * lpfc_sli4_init_vpi - Initialize a vpi with the port
11805 * @phba: pointer to lpfc hba data structure.
11806 * @vpi: vpi value to activate with the port.
11808 * This routine is invoked to activate a vpi with the
11809 * port when the host intends to use vports with a
11814 * -Evalue otherwise
11817 lpfc_sli4_init_vpi(struct lpfc_hba
*phba
, uint16_t vpi
)
11819 LPFC_MBOXQ_t
*mboxq
;
11821 int retval
= MBX_SUCCESS
;
11826 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
11829 lpfc_init_vpi(phba
, mboxq
, vpi
);
11830 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_INIT_VPI
);
11831 rc
= lpfc_sli_issue_mbox_wait(phba
, mboxq
, mbox_tmo
);
11832 if (rc
!= MBX_SUCCESS
) {
11833 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11834 "2022 INIT VPI Mailbox failed "
11835 "status %d, mbxStatus x%x\n", rc
,
11836 bf_get(lpfc_mqe_status
, &mboxq
->u
.mqe
));
11839 if (rc
!= MBX_TIMEOUT
)
11840 mempool_free(mboxq
, phba
->mbox_mem_pool
);
11846 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
11847 * @phba: pointer to lpfc hba data structure.
11848 * @mboxq: Pointer to mailbox object.
11850 * This routine is invoked to manually add a single FCF record. The caller
11851 * must pass a completely initialized FCF_Record. This routine takes
11852 * care of the nonembedded mailbox operations.
11855 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
11858 union lpfc_sli4_cfg_shdr
*shdr
;
11859 uint32_t shdr_status
, shdr_add_status
;
11861 virt_addr
= mboxq
->sge_array
->addr
[0];
11862 /* The IOCTL status is embedded in the mailbox subheader. */
11863 shdr
= (union lpfc_sli4_cfg_shdr
*) virt_addr
;
11864 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
11865 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
11867 if ((shdr_status
|| shdr_add_status
) &&
11868 (shdr_status
!= STATUS_FCF_IN_USE
))
11869 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
11870 "2558 ADD_FCF_RECORD mailbox failed with "
11871 "status x%x add_status x%x\n",
11872 shdr_status
, shdr_add_status
);
11874 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
11878 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
11879 * @phba: pointer to lpfc hba data structure.
11880 * @fcf_record: pointer to the initialized fcf record to add.
11882 * This routine is invoked to manually add a single FCF record. The caller
11883 * must pass a completely initialized FCF_Record. This routine takes
11884 * care of the nonembedded mailbox operations.
11887 lpfc_sli4_add_fcf_record(struct lpfc_hba
*phba
, struct fcf_record
*fcf_record
)
11890 LPFC_MBOXQ_t
*mboxq
;
11893 dma_addr_t phys_addr
;
11894 struct lpfc_mbx_sge sge
;
11895 uint32_t alloc_len
, req_len
;
11898 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
11900 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
11901 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
11905 req_len
= sizeof(struct fcf_record
) + sizeof(union lpfc_sli4_cfg_shdr
) +
11908 /* Allocate DMA memory and set up the non-embedded mailbox command */
11909 alloc_len
= lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_FCOE
,
11910 LPFC_MBOX_OPCODE_FCOE_ADD_FCF
,
11911 req_len
, LPFC_SLI4_MBX_NEMBED
);
11912 if (alloc_len
< req_len
) {
11913 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
11914 "2523 Allocated DMA memory size (x%x) is "
11915 "less than the requested DMA memory "
11916 "size (x%x)\n", alloc_len
, req_len
);
11917 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
11922 * Get the first SGE entry from the non-embedded DMA memory. This
11923 * routine only uses a single SGE.
11925 lpfc_sli4_mbx_sge_get(mboxq
, 0, &sge
);
11926 phys_addr
= getPaddr(sge
.pa_hi
, sge
.pa_lo
);
11927 virt_addr
= mboxq
->sge_array
->addr
[0];
11929 * Configure the FCF record for FCFI 0. This is the driver's
11930 * hardcoded default and gets used in nonFIP mode.
11932 fcfindex
= bf_get(lpfc_fcf_record_fcf_index
, fcf_record
);
11933 bytep
= virt_addr
+ sizeof(union lpfc_sli4_cfg_shdr
);
11934 lpfc_sli_pcimem_bcopy(&fcfindex
, bytep
, sizeof(uint32_t));
11937 * Copy the fcf_index and the FCF Record Data. The data starts after
11938 * the FCoE header plus word10. The data copy needs to be endian
11941 bytep
+= sizeof(uint32_t);
11942 lpfc_sli_pcimem_bcopy(fcf_record
, bytep
, sizeof(struct fcf_record
));
11943 mboxq
->vport
= phba
->pport
;
11944 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_add_fcf_record
;
11945 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
11946 if (rc
== MBX_NOT_FINISHED
) {
11947 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
11948 "2515 ADD_FCF_RECORD mailbox failed with "
11949 "status 0x%x\n", rc
);
11950 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
11959 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
11960 * @phba: pointer to lpfc hba data structure.
11961 * @fcf_record: pointer to the fcf record to write the default data.
11962 * @fcf_index: FCF table entry index.
11964 * This routine is invoked to build the driver's default FCF record. The
11965 * values used are hardcoded. This routine handles memory initialization.
11969 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba
*phba
,
11970 struct fcf_record
*fcf_record
,
11971 uint16_t fcf_index
)
11973 memset(fcf_record
, 0, sizeof(struct fcf_record
));
11974 fcf_record
->max_rcv_size
= LPFC_FCOE_MAX_RCV_SIZE
;
11975 fcf_record
->fka_adv_period
= LPFC_FCOE_FKA_ADV_PER
;
11976 fcf_record
->fip_priority
= LPFC_FCOE_FIP_PRIORITY
;
11977 bf_set(lpfc_fcf_record_mac_0
, fcf_record
, phba
->fc_map
[0]);
11978 bf_set(lpfc_fcf_record_mac_1
, fcf_record
, phba
->fc_map
[1]);
11979 bf_set(lpfc_fcf_record_mac_2
, fcf_record
, phba
->fc_map
[2]);
11980 bf_set(lpfc_fcf_record_mac_3
, fcf_record
, LPFC_FCOE_FCF_MAC3
);
11981 bf_set(lpfc_fcf_record_mac_4
, fcf_record
, LPFC_FCOE_FCF_MAC4
);
11982 bf_set(lpfc_fcf_record_mac_5
, fcf_record
, LPFC_FCOE_FCF_MAC5
);
11983 bf_set(lpfc_fcf_record_fc_map_0
, fcf_record
, phba
->fc_map
[0]);
11984 bf_set(lpfc_fcf_record_fc_map_1
, fcf_record
, phba
->fc_map
[1]);
11985 bf_set(lpfc_fcf_record_fc_map_2
, fcf_record
, phba
->fc_map
[2]);
11986 bf_set(lpfc_fcf_record_fcf_valid
, fcf_record
, 1);
11987 bf_set(lpfc_fcf_record_fcf_avail
, fcf_record
, 1);
11988 bf_set(lpfc_fcf_record_fcf_index
, fcf_record
, fcf_index
);
11989 bf_set(lpfc_fcf_record_mac_addr_prov
, fcf_record
,
11990 LPFC_FCF_FPMA
| LPFC_FCF_SPMA
);
11991 /* Set the VLAN bit map */
11992 if (phba
->valid_vlan
) {
11993 fcf_record
->vlan_bitmap
[phba
->vlan_id
/ 8]
11994 = 1 << (phba
->vlan_id
% 8);
11999 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
12000 * @phba: pointer to lpfc hba data structure.
12001 * @fcf_index: FCF table entry offset.
12003 * This routine is invoked to scan the entire FCF table by reading FCF
12004 * record and processing it one at a time starting from the @fcf_index
12005 * for initial FCF discovery or fast FCF failover rediscovery.
12007 * Return 0 if the mailbox command is submitted sucessfully, none 0
12011 lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba
*phba
, uint16_t fcf_index
)
12014 LPFC_MBOXQ_t
*mboxq
;
12016 phba
->fcoe_eventtag_at_fcf_scan
= phba
->fcoe_eventtag
;
12017 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12019 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12020 "2000 Failed to allocate mbox for "
12023 goto fail_fcf_scan
;
12025 /* Construct the read FCF record mailbox command */
12026 rc
= lpfc_sli4_mbx_read_fcf_rec(phba
, mboxq
, fcf_index
);
12029 goto fail_fcf_scan
;
12031 /* Issue the mailbox command asynchronously */
12032 mboxq
->vport
= phba
->pport
;
12033 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_fcf_scan_read_fcf_rec
;
12034 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
12035 if (rc
== MBX_NOT_FINISHED
)
12038 spin_lock_irq(&phba
->hbalock
);
12039 phba
->hba_flag
|= FCF_DISC_INPROGRESS
;
12040 spin_unlock_irq(&phba
->hbalock
);
12041 /* Reset FCF round robin index bmask for new scan */
12042 if (fcf_index
== LPFC_FCOE_FCF_GET_FIRST
)
12043 memset(phba
->fcf
.fcf_rr_bmask
, 0,
12044 sizeof(*phba
->fcf
.fcf_rr_bmask
));
12050 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
12051 /* FCF scan failed, clear FCF_DISC_INPROGRESS flag */
12052 spin_lock_irq(&phba
->hbalock
);
12053 phba
->hba_flag
&= ~FCF_DISC_INPROGRESS
;
12054 spin_unlock_irq(&phba
->hbalock
);
12060 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for round robin fcf.
12061 * @phba: pointer to lpfc hba data structure.
12062 * @fcf_index: FCF table entry offset.
12064 * This routine is invoked to read an FCF record indicated by @fcf_index
12065 * and to use it for FLOGI round robin FCF failover.
12067 * Return 0 if the mailbox command is submitted sucessfully, none 0
12071 lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba
*phba
, uint16_t fcf_index
)
12074 LPFC_MBOXQ_t
*mboxq
;
12076 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12078 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_INIT
,
12079 "2763 Failed to allocate mbox for "
12082 goto fail_fcf_read
;
12084 /* Construct the read FCF record mailbox command */
12085 rc
= lpfc_sli4_mbx_read_fcf_rec(phba
, mboxq
, fcf_index
);
12088 goto fail_fcf_read
;
12090 /* Issue the mailbox command asynchronously */
12091 mboxq
->vport
= phba
->pport
;
12092 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_fcf_rr_read_fcf_rec
;
12093 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
12094 if (rc
== MBX_NOT_FINISHED
)
12100 if (error
&& mboxq
)
12101 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
12106 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
12107 * @phba: pointer to lpfc hba data structure.
12108 * @fcf_index: FCF table entry offset.
12110 * This routine is invoked to read an FCF record indicated by @fcf_index to
12111 * determine whether it's eligible for FLOGI round robin failover list.
12113 * Return 0 if the mailbox command is submitted sucessfully, none 0
12117 lpfc_sli4_read_fcf_rec(struct lpfc_hba
*phba
, uint16_t fcf_index
)
12120 LPFC_MBOXQ_t
*mboxq
;
12122 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12124 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_INIT
,
12125 "2758 Failed to allocate mbox for "
12128 goto fail_fcf_read
;
12130 /* Construct the read FCF record mailbox command */
12131 rc
= lpfc_sli4_mbx_read_fcf_rec(phba
, mboxq
, fcf_index
);
12134 goto fail_fcf_read
;
12136 /* Issue the mailbox command asynchronously */
12137 mboxq
->vport
= phba
->pport
;
12138 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_read_fcf_rec
;
12139 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
12140 if (rc
== MBX_NOT_FINISHED
)
12146 if (error
&& mboxq
)
12147 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
12152 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
12153 * @phba: pointer to lpfc hba data structure.
12155 * This routine is to get the next eligible FCF record index in a round
12156 * robin fashion. If the next eligible FCF record index equals to the
12157 * initial round robin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
12158 * shall be returned, otherwise, the next eligible FCF record's index
12159 * shall be returned.
12162 lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba
*phba
)
12164 uint16_t next_fcf_index
;
12166 /* Search from the currently registered FCF index */
12167 next_fcf_index
= find_next_bit(phba
->fcf
.fcf_rr_bmask
,
12168 LPFC_SLI4_FCF_TBL_INDX_MAX
,
12169 phba
->fcf
.current_rec
.fcf_indx
);
12170 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
12171 if (next_fcf_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
)
12172 next_fcf_index
= find_next_bit(phba
->fcf
.fcf_rr_bmask
,
12173 LPFC_SLI4_FCF_TBL_INDX_MAX
, 0);
12174 /* Round robin failover stop condition */
12175 if (next_fcf_index
== phba
->fcf
.fcf_rr_init_indx
)
12176 return LPFC_FCOE_FCF_NEXT_NONE
;
12178 return next_fcf_index
;
12182 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
12183 * @phba: pointer to lpfc hba data structure.
12185 * This routine sets the FCF record index in to the eligible bmask for
12186 * round robin failover search. It checks to make sure that the index
12187 * does not go beyond the range of the driver allocated bmask dimension
12188 * before setting the bit.
12190 * Returns 0 if the index bit successfully set, otherwise, it returns
12194 lpfc_sli4_fcf_rr_index_set(struct lpfc_hba
*phba
, uint16_t fcf_index
)
12196 if (fcf_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
) {
12197 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
12198 "2610 HBA FCF index reached driver's "
12199 "book keeping dimension: fcf_index:%d, "
12200 "driver_bmask_max:%d\n",
12201 fcf_index
, LPFC_SLI4_FCF_TBL_INDX_MAX
);
12204 /* Set the eligible FCF record index bmask */
12205 set_bit(fcf_index
, phba
->fcf
.fcf_rr_bmask
);
12211 * lpfc_sli4_fcf_rr_index_set - Clear bmask from eligible fcf record index
12212 * @phba: pointer to lpfc hba data structure.
12214 * This routine clears the FCF record index from the eligible bmask for
12215 * round robin failover search. It checks to make sure that the index
12216 * does not go beyond the range of the driver allocated bmask dimension
12217 * before clearing the bit.
12220 lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba
*phba
, uint16_t fcf_index
)
12222 if (fcf_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
) {
12223 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
12224 "2762 HBA FCF index goes beyond driver's "
12225 "book keeping dimension: fcf_index:%d, "
12226 "driver_bmask_max:%d\n",
12227 fcf_index
, LPFC_SLI4_FCF_TBL_INDX_MAX
);
12230 /* Clear the eligible FCF record index bmask */
12231 clear_bit(fcf_index
, phba
->fcf
.fcf_rr_bmask
);
12235 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
12236 * @phba: pointer to lpfc hba data structure.
12238 * This routine is the completion routine for the rediscover FCF table mailbox
12239 * command. If the mailbox command returned failure, it will try to stop the
12240 * FCF rediscover wait timer.
12243 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mbox
)
12245 struct lpfc_mbx_redisc_fcf_tbl
*redisc_fcf
;
12246 uint32_t shdr_status
, shdr_add_status
;
12248 redisc_fcf
= &mbox
->u
.mqe
.un
.redisc_fcf_tbl
;
12250 shdr_status
= bf_get(lpfc_mbox_hdr_status
,
12251 &redisc_fcf
->header
.cfg_shdr
.response
);
12252 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
,
12253 &redisc_fcf
->header
.cfg_shdr
.response
);
12254 if (shdr_status
|| shdr_add_status
) {
12255 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
12256 "2746 Requesting for FCF rediscovery failed "
12257 "status x%x add_status x%x\n",
12258 shdr_status
, shdr_add_status
);
12259 if (phba
->fcf
.fcf_flag
& FCF_ACVL_DISC
) {
12260 spin_lock_irq(&phba
->hbalock
);
12261 phba
->fcf
.fcf_flag
&= ~FCF_ACVL_DISC
;
12262 spin_unlock_irq(&phba
->hbalock
);
12264 * CVL event triggered FCF rediscover request failed,
12265 * last resort to re-try current registered FCF entry.
12267 lpfc_retry_pport_discovery(phba
);
12269 spin_lock_irq(&phba
->hbalock
);
12270 phba
->fcf
.fcf_flag
&= ~FCF_DEAD_DISC
;
12271 spin_unlock_irq(&phba
->hbalock
);
12273 * DEAD FCF event triggered FCF rediscover request
12274 * failed, last resort to fail over as a link down
12275 * to FCF registration.
12277 lpfc_sli4_fcf_dead_failthrough(phba
);
12280 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
12281 "2775 Start FCF rediscovery quiescent period "
12282 "wait timer before scaning FCF table\n");
12284 * Start FCF rediscovery wait timer for pending FCF
12285 * before rescan FCF record table.
12287 lpfc_fcf_redisc_wait_start_timer(phba
);
12290 mempool_free(mbox
, phba
->mbox_mem_pool
);
12294 * lpfc_sli4_redisc_all_fcf - Request to rediscover entire FCF table by port.
12295 * @phba: pointer to lpfc hba data structure.
12297 * This routine is invoked to request for rediscovery of the entire FCF table
12301 lpfc_sli4_redisc_fcf_table(struct lpfc_hba
*phba
)
12303 LPFC_MBOXQ_t
*mbox
;
12304 struct lpfc_mbx_redisc_fcf_tbl
*redisc_fcf
;
12307 /* Cancel retry delay timers to all vports before FCF rediscover */
12308 lpfc_cancel_all_vport_retry_delay_timer(phba
);
12310 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12312 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12313 "2745 Failed to allocate mbox for "
12314 "requesting FCF rediscover.\n");
12318 length
= (sizeof(struct lpfc_mbx_redisc_fcf_tbl
) -
12319 sizeof(struct lpfc_sli4_cfg_mhdr
));
12320 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
12321 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF
,
12322 length
, LPFC_SLI4_MBX_EMBED
);
12324 redisc_fcf
= &mbox
->u
.mqe
.un
.redisc_fcf_tbl
;
12325 /* Set count to 0 for invalidating the entire FCF database */
12326 bf_set(lpfc_mbx_redisc_fcf_count
, redisc_fcf
, 0);
12328 /* Issue the mailbox command asynchronously */
12329 mbox
->vport
= phba
->pport
;
12330 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_redisc_fcf_table
;
12331 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
12333 if (rc
== MBX_NOT_FINISHED
) {
12334 mempool_free(mbox
, phba
->mbox_mem_pool
);
12341 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
12342 * @phba: pointer to lpfc hba data structure.
12344 * This function is the failover routine as a last resort to the FCF DEAD
12345 * event when driver failed to perform fast FCF failover.
12348 lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba
*phba
)
12350 uint32_t link_state
;
12353 * Last resort as FCF DEAD event failover will treat this as
12354 * a link down, but save the link state because we don't want
12355 * it to be changed to Link Down unless it is already down.
12357 link_state
= phba
->link_state
;
12358 lpfc_linkdown(phba
);
12359 phba
->link_state
= link_state
;
12361 /* Unregister FCF if no devices connected to it */
12362 lpfc_unregister_unused_fcf(phba
);
12366 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
12367 * @phba: pointer to lpfc hba data structure.
12369 * This function read region 23 and parse TLV for port status to
12370 * decide if the user disaled the port. If the TLV indicates the
12371 * port is disabled, the hba_flag is set accordingly.
12374 lpfc_sli_read_link_ste(struct lpfc_hba
*phba
)
12376 LPFC_MBOXQ_t
*pmb
= NULL
;
12378 uint8_t *rgn23_data
= NULL
;
12379 uint32_t offset
= 0, data_size
, sub_tlv_len
, tlv_offset
;
12382 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12384 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12385 "2600 lpfc_sli_read_serdes_param failed to"
12386 " allocate mailbox memory\n");
12391 /* Get adapter Region 23 data */
12392 rgn23_data
= kzalloc(DMP_RGN23_SIZE
, GFP_KERNEL
);
12397 lpfc_dump_mem(phba
, pmb
, offset
, DMP_REGION_23
);
12398 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
12400 if (rc
!= MBX_SUCCESS
) {
12401 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
12402 "2601 lpfc_sli_read_link_ste failed to"
12403 " read config region 23 rc 0x%x Status 0x%x\n",
12404 rc
, mb
->mbxStatus
);
12405 mb
->un
.varDmp
.word_cnt
= 0;
12408 * dump mem may return a zero when finished or we got a
12409 * mailbox error, either way we are done.
12411 if (mb
->un
.varDmp
.word_cnt
== 0)
12413 if (mb
->un
.varDmp
.word_cnt
> DMP_RGN23_SIZE
- offset
)
12414 mb
->un
.varDmp
.word_cnt
= DMP_RGN23_SIZE
- offset
;
12416 lpfc_sli_pcimem_bcopy(((uint8_t *)mb
) + DMP_RSP_OFFSET
,
12417 rgn23_data
+ offset
,
12418 mb
->un
.varDmp
.word_cnt
);
12419 offset
+= mb
->un
.varDmp
.word_cnt
;
12420 } while (mb
->un
.varDmp
.word_cnt
&& offset
< DMP_RGN23_SIZE
);
12422 data_size
= offset
;
12428 /* Check the region signature first */
12429 if (memcmp(&rgn23_data
[offset
], LPFC_REGION23_SIGNATURE
, 4)) {
12430 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12431 "2619 Config region 23 has bad signature\n");
12436 /* Check the data structure version */
12437 if (rgn23_data
[offset
] != LPFC_REGION23_VERSION
) {
12438 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12439 "2620 Config region 23 has bad version\n");
12444 /* Parse TLV entries in the region */
12445 while (offset
< data_size
) {
12446 if (rgn23_data
[offset
] == LPFC_REGION23_LAST_REC
)
12449 * If the TLV is not driver specific TLV or driver id is
12450 * not linux driver id, skip the record.
12452 if ((rgn23_data
[offset
] != DRIVER_SPECIFIC_TYPE
) ||
12453 (rgn23_data
[offset
+ 2] != LINUX_DRIVER_ID
) ||
12454 (rgn23_data
[offset
+ 3] != 0)) {
12455 offset
+= rgn23_data
[offset
+ 1] * 4 + 4;
12459 /* Driver found a driver specific TLV in the config region */
12460 sub_tlv_len
= rgn23_data
[offset
+ 1] * 4;
12465 * Search for configured port state sub-TLV.
12467 while ((offset
< data_size
) &&
12468 (tlv_offset
< sub_tlv_len
)) {
12469 if (rgn23_data
[offset
] == LPFC_REGION23_LAST_REC
) {
12474 if (rgn23_data
[offset
] != PORT_STE_TYPE
) {
12475 offset
+= rgn23_data
[offset
+ 1] * 4 + 4;
12476 tlv_offset
+= rgn23_data
[offset
+ 1] * 4 + 4;
12480 /* This HBA contains PORT_STE configured */
12481 if (!rgn23_data
[offset
+ 2])
12482 phba
->hba_flag
|= LINK_DISABLED
;
12489 mempool_free(pmb
, phba
->mbox_mem_pool
);
12495 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
12496 * @vport: pointer to vport data structure.
12498 * This function iterate through the mailboxq and clean up all REG_LOGIN
12499 * and REG_VPI mailbox commands associated with the vport. This function
12500 * is called when driver want to restart discovery of the vport due to
12501 * a Clear Virtual Link event.
12504 lpfc_cleanup_pending_mbox(struct lpfc_vport
*vport
)
12506 struct lpfc_hba
*phba
= vport
->phba
;
12507 LPFC_MBOXQ_t
*mb
, *nextmb
;
12508 struct lpfc_dmabuf
*mp
;
12510 spin_lock_irq(&phba
->hbalock
);
12511 list_for_each_entry_safe(mb
, nextmb
, &phba
->sli
.mboxq
, list
) {
12512 if (mb
->vport
!= vport
)
12515 if ((mb
->u
.mb
.mbxCommand
!= MBX_REG_LOGIN64
) &&
12516 (mb
->u
.mb
.mbxCommand
!= MBX_REG_VPI
))
12519 if (mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) {
12520 mp
= (struct lpfc_dmabuf
*) (mb
->context1
);
12522 __lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
12526 list_del(&mb
->list
);
12527 mempool_free(mb
, phba
->mbox_mem_pool
);
12529 mb
= phba
->sli
.mbox_active
;
12530 if (mb
&& (mb
->vport
== vport
)) {
12531 if ((mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) ||
12532 (mb
->u
.mb
.mbxCommand
== MBX_REG_VPI
))
12533 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
12535 spin_unlock_irq(&phba
->hbalock
);