1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2009 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
22 #include <linux/blkdev.h>
23 #include <linux/pci.h>
24 #include <linux/interrupt.h>
25 #include <linux/delay.h>
26 #include <linux/slab.h>
28 #include <scsi/scsi.h>
29 #include <scsi/scsi_cmnd.h>
30 #include <scsi/scsi_device.h>
31 #include <scsi/scsi_host.h>
32 #include <scsi/scsi_transport_fc.h>
33 #include <scsi/fc/fc_fs.h>
34 #include <linux/aer.h>
39 #include "lpfc_sli4.h"
41 #include "lpfc_disc.h"
42 #include "lpfc_scsi.h"
44 #include "lpfc_crtn.h"
45 #include "lpfc_logmsg.h"
46 #include "lpfc_compat.h"
47 #include "lpfc_debugfs.h"
48 #include "lpfc_vport.h"
50 /* There are only four IOCB completion types. */
51 typedef enum _lpfc_iocb_type
{
59 /* Provide function prototypes local to this module. */
60 static int lpfc_sli_issue_mbox_s4(struct lpfc_hba
*, LPFC_MBOXQ_t
*,
62 static int lpfc_sli4_read_rev(struct lpfc_hba
*, LPFC_MBOXQ_t
*,
63 uint8_t *, uint32_t *);
64 static struct lpfc_iocbq
*lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba
*,
66 static void lpfc_sli4_send_seq_to_ulp(struct lpfc_vport
*,
69 lpfc_get_iocb_from_iocbq(struct lpfc_iocbq
*iocbq
)
75 * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
76 * @q: The Work Queue to operate on.
77 * @wqe: The work Queue Entry to put on the Work queue.
79 * This routine will copy the contents of @wqe to the next available entry on
80 * the @q. This function will then ring the Work Queue Doorbell to signal the
81 * HBA to start processing the Work Queue Entry. This function returns 0 if
82 * successful. If no entries are available on @q then this function will return
84 * The caller is expected to hold the hbalock when calling this routine.
87 lpfc_sli4_wq_put(struct lpfc_queue
*q
, union lpfc_wqe
*wqe
)
89 union lpfc_wqe
*temp_wqe
= q
->qe
[q
->host_index
].wqe
;
90 struct lpfc_register doorbell
;
93 /* If the host has not yet processed the next entry then we are done */
94 if (((q
->host_index
+ 1) % q
->entry_count
) == q
->hba_index
)
96 /* set consumption flag every once in a while */
97 if (!((q
->host_index
+ 1) % LPFC_RELEASE_NOTIFICATION_INTERVAL
))
98 bf_set(wqe_wqec
, &wqe
->generic
.wqe_com
, 1);
99 if (q
->phba
->sli3_options
& LPFC_SLI4_PHWQ_ENABLED
)
100 bf_set(wqe_wqid
, &wqe
->generic
.wqe_com
, q
->queue_id
);
101 lpfc_sli_pcimem_bcopy(wqe
, temp_wqe
, q
->entry_size
);
103 /* Update the host index before invoking device */
104 host_index
= q
->host_index
;
105 q
->host_index
= ((q
->host_index
+ 1) % q
->entry_count
);
109 bf_set(lpfc_wq_doorbell_num_posted
, &doorbell
, 1);
110 bf_set(lpfc_wq_doorbell_index
, &doorbell
, host_index
);
111 bf_set(lpfc_wq_doorbell_id
, &doorbell
, q
->queue_id
);
112 writel(doorbell
.word0
, q
->phba
->sli4_hba
.WQDBregaddr
);
113 readl(q
->phba
->sli4_hba
.WQDBregaddr
); /* Flush */
119 * lpfc_sli4_wq_release - Updates internal hba index for WQ
120 * @q: The Work Queue to operate on.
121 * @index: The index to advance the hba index to.
123 * This routine will update the HBA index of a queue to reflect consumption of
124 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
125 * an entry the host calls this function to update the queue's internal
126 * pointers. This routine returns the number of entries that were consumed by
130 lpfc_sli4_wq_release(struct lpfc_queue
*q
, uint32_t index
)
132 uint32_t released
= 0;
134 if (q
->hba_index
== index
)
137 q
->hba_index
= ((q
->hba_index
+ 1) % q
->entry_count
);
139 } while (q
->hba_index
!= index
);
144 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
145 * @q: The Mailbox Queue to operate on.
146 * @wqe: The Mailbox Queue Entry to put on the Work queue.
148 * This routine will copy the contents of @mqe to the next available entry on
149 * the @q. This function will then ring the Work Queue Doorbell to signal the
150 * HBA to start processing the Work Queue Entry. This function returns 0 if
151 * successful. If no entries are available on @q then this function will return
153 * The caller is expected to hold the hbalock when calling this routine.
156 lpfc_sli4_mq_put(struct lpfc_queue
*q
, struct lpfc_mqe
*mqe
)
158 struct lpfc_mqe
*temp_mqe
= q
->qe
[q
->host_index
].mqe
;
159 struct lpfc_register doorbell
;
162 /* If the host has not yet processed the next entry then we are done */
163 if (((q
->host_index
+ 1) % q
->entry_count
) == q
->hba_index
)
165 lpfc_sli_pcimem_bcopy(mqe
, temp_mqe
, q
->entry_size
);
166 /* Save off the mailbox pointer for completion */
167 q
->phba
->mbox
= (MAILBOX_t
*)temp_mqe
;
169 /* Update the host index before invoking device */
170 host_index
= q
->host_index
;
171 q
->host_index
= ((q
->host_index
+ 1) % q
->entry_count
);
175 bf_set(lpfc_mq_doorbell_num_posted
, &doorbell
, 1);
176 bf_set(lpfc_mq_doorbell_id
, &doorbell
, q
->queue_id
);
177 writel(doorbell
.word0
, q
->phba
->sli4_hba
.MQDBregaddr
);
178 readl(q
->phba
->sli4_hba
.MQDBregaddr
); /* Flush */
183 * lpfc_sli4_mq_release - Updates internal hba index for MQ
184 * @q: The Mailbox Queue to operate on.
186 * This routine will update the HBA index of a queue to reflect consumption of
187 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
188 * an entry the host calls this function to update the queue's internal
189 * pointers. This routine returns the number of entries that were consumed by
193 lpfc_sli4_mq_release(struct lpfc_queue
*q
)
195 /* Clear the mailbox pointer for completion */
196 q
->phba
->mbox
= NULL
;
197 q
->hba_index
= ((q
->hba_index
+ 1) % q
->entry_count
);
202 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
203 * @q: The Event Queue to get the first valid EQE from
205 * This routine will get the first valid Event Queue Entry from @q, update
206 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
207 * the Queue (no more work to do), or the Queue is full of EQEs that have been
208 * processed, but not popped back to the HBA then this routine will return NULL.
210 static struct lpfc_eqe
*
211 lpfc_sli4_eq_get(struct lpfc_queue
*q
)
213 struct lpfc_eqe
*eqe
= q
->qe
[q
->hba_index
].eqe
;
215 /* If the next EQE is not valid then we are done */
216 if (!bf_get_le32(lpfc_eqe_valid
, eqe
))
218 /* If the host has not yet processed the next entry then we are done */
219 if (((q
->hba_index
+ 1) % q
->entry_count
) == q
->host_index
)
222 q
->hba_index
= ((q
->hba_index
+ 1) % q
->entry_count
);
227 * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
228 * @q: The Event Queue that the host has completed processing for.
229 * @arm: Indicates whether the host wants to arms this CQ.
231 * This routine will mark all Event Queue Entries on @q, from the last
232 * known completed entry to the last entry that was processed, as completed
233 * by clearing the valid bit for each completion queue entry. Then it will
234 * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
235 * The internal host index in the @q will be updated by this routine to indicate
236 * that the host has finished processing the entries. The @arm parameter
237 * indicates that the queue should be rearmed when ringing the doorbell.
239 * This function will return the number of EQEs that were popped.
242 lpfc_sli4_eq_release(struct lpfc_queue
*q
, bool arm
)
244 uint32_t released
= 0;
245 struct lpfc_eqe
*temp_eqe
;
246 struct lpfc_register doorbell
;
248 /* while there are valid entries */
249 while (q
->hba_index
!= q
->host_index
) {
250 temp_eqe
= q
->qe
[q
->host_index
].eqe
;
251 bf_set_le32(lpfc_eqe_valid
, temp_eqe
, 0);
253 q
->host_index
= ((q
->host_index
+ 1) % q
->entry_count
);
255 if (unlikely(released
== 0 && !arm
))
258 /* ring doorbell for number popped */
261 bf_set(lpfc_eqcq_doorbell_arm
, &doorbell
, 1);
262 bf_set(lpfc_eqcq_doorbell_eqci
, &doorbell
, 1);
264 bf_set(lpfc_eqcq_doorbell_num_released
, &doorbell
, released
);
265 bf_set(lpfc_eqcq_doorbell_qt
, &doorbell
, LPFC_QUEUE_TYPE_EVENT
);
266 bf_set(lpfc_eqcq_doorbell_eqid
, &doorbell
, q
->queue_id
);
267 writel(doorbell
.word0
, q
->phba
->sli4_hba
.EQCQDBregaddr
);
268 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
269 if ((q
->phba
->intr_type
== INTx
) && (arm
== LPFC_QUEUE_REARM
))
270 readl(q
->phba
->sli4_hba
.EQCQDBregaddr
);
275 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
276 * @q: The Completion Queue to get the first valid CQE from
278 * This routine will get the first valid Completion Queue Entry from @q, update
279 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
280 * the Queue (no more work to do), or the Queue is full of CQEs that have been
281 * processed, but not popped back to the HBA then this routine will return NULL.
283 static struct lpfc_cqe
*
284 lpfc_sli4_cq_get(struct lpfc_queue
*q
)
286 struct lpfc_cqe
*cqe
;
288 /* If the next CQE is not valid then we are done */
289 if (!bf_get_le32(lpfc_cqe_valid
, q
->qe
[q
->hba_index
].cqe
))
291 /* If the host has not yet processed the next entry then we are done */
292 if (((q
->hba_index
+ 1) % q
->entry_count
) == q
->host_index
)
295 cqe
= q
->qe
[q
->hba_index
].cqe
;
296 q
->hba_index
= ((q
->hba_index
+ 1) % q
->entry_count
);
301 * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ
302 * @q: The Completion Queue that the host has completed processing for.
303 * @arm: Indicates whether the host wants to arms this CQ.
305 * This routine will mark all Completion queue entries on @q, from the last
306 * known completed entry to the last entry that was processed, as completed
307 * by clearing the valid bit for each completion queue entry. Then it will
308 * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
309 * The internal host index in the @q will be updated by this routine to indicate
310 * that the host has finished processing the entries. The @arm parameter
311 * indicates that the queue should be rearmed when ringing the doorbell.
313 * This function will return the number of CQEs that were released.
316 lpfc_sli4_cq_release(struct lpfc_queue
*q
, bool arm
)
318 uint32_t released
= 0;
319 struct lpfc_cqe
*temp_qe
;
320 struct lpfc_register doorbell
;
322 /* while there are valid entries */
323 while (q
->hba_index
!= q
->host_index
) {
324 temp_qe
= q
->qe
[q
->host_index
].cqe
;
325 bf_set_le32(lpfc_cqe_valid
, temp_qe
, 0);
327 q
->host_index
= ((q
->host_index
+ 1) % q
->entry_count
);
329 if (unlikely(released
== 0 && !arm
))
332 /* ring doorbell for number popped */
335 bf_set(lpfc_eqcq_doorbell_arm
, &doorbell
, 1);
336 bf_set(lpfc_eqcq_doorbell_num_released
, &doorbell
, released
);
337 bf_set(lpfc_eqcq_doorbell_qt
, &doorbell
, LPFC_QUEUE_TYPE_COMPLETION
);
338 bf_set(lpfc_eqcq_doorbell_cqid
, &doorbell
, q
->queue_id
);
339 writel(doorbell
.word0
, q
->phba
->sli4_hba
.EQCQDBregaddr
);
344 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
345 * @q: The Header Receive Queue to operate on.
346 * @wqe: The Receive Queue Entry to put on the Receive queue.
348 * This routine will copy the contents of @wqe to the next available entry on
349 * the @q. This function will then ring the Receive Queue Doorbell to signal the
350 * HBA to start processing the Receive Queue Entry. This function returns the
351 * index that the rqe was copied to if successful. If no entries are available
352 * on @q then this function will return -ENOMEM.
353 * The caller is expected to hold the hbalock when calling this routine.
356 lpfc_sli4_rq_put(struct lpfc_queue
*hq
, struct lpfc_queue
*dq
,
357 struct lpfc_rqe
*hrqe
, struct lpfc_rqe
*drqe
)
359 struct lpfc_rqe
*temp_hrqe
= hq
->qe
[hq
->host_index
].rqe
;
360 struct lpfc_rqe
*temp_drqe
= dq
->qe
[dq
->host_index
].rqe
;
361 struct lpfc_register doorbell
;
362 int put_index
= hq
->host_index
;
364 if (hq
->type
!= LPFC_HRQ
|| dq
->type
!= LPFC_DRQ
)
366 if (hq
->host_index
!= dq
->host_index
)
368 /* If the host has not yet processed the next entry then we are done */
369 if (((hq
->host_index
+ 1) % hq
->entry_count
) == hq
->hba_index
)
371 lpfc_sli_pcimem_bcopy(hrqe
, temp_hrqe
, hq
->entry_size
);
372 lpfc_sli_pcimem_bcopy(drqe
, temp_drqe
, dq
->entry_size
);
374 /* Update the host index to point to the next slot */
375 hq
->host_index
= ((hq
->host_index
+ 1) % hq
->entry_count
);
376 dq
->host_index
= ((dq
->host_index
+ 1) % dq
->entry_count
);
378 /* Ring The Header Receive Queue Doorbell */
379 if (!(hq
->host_index
% LPFC_RQ_POST_BATCH
)) {
381 bf_set(lpfc_rq_doorbell_num_posted
, &doorbell
,
383 bf_set(lpfc_rq_doorbell_id
, &doorbell
, hq
->queue_id
);
384 writel(doorbell
.word0
, hq
->phba
->sli4_hba
.RQDBregaddr
);
390 * lpfc_sli4_rq_release - Updates internal hba index for RQ
391 * @q: The Header Receive Queue to operate on.
393 * This routine will update the HBA index of a queue to reflect consumption of
394 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
395 * consumed an entry the host calls this function to update the queue's
396 * internal pointers. This routine returns the number of entries that were
397 * consumed by the HBA.
400 lpfc_sli4_rq_release(struct lpfc_queue
*hq
, struct lpfc_queue
*dq
)
402 if ((hq
->type
!= LPFC_HRQ
) || (dq
->type
!= LPFC_DRQ
))
404 hq
->hba_index
= ((hq
->hba_index
+ 1) % hq
->entry_count
);
405 dq
->hba_index
= ((dq
->hba_index
+ 1) % dq
->entry_count
);
410 * lpfc_cmd_iocb - Get next command iocb entry in the ring
411 * @phba: Pointer to HBA context object.
412 * @pring: Pointer to driver SLI ring object.
414 * This function returns pointer to next command iocb entry
415 * in the command ring. The caller must hold hbalock to prevent
416 * other threads consume the next command iocb.
417 * SLI-2/SLI-3 provide different sized iocbs.
419 static inline IOCB_t
*
420 lpfc_cmd_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
422 return (IOCB_t
*) (((char *) pring
->cmdringaddr
) +
423 pring
->cmdidx
* phba
->iocb_cmd_size
);
427 * lpfc_resp_iocb - Get next response iocb entry in the ring
428 * @phba: Pointer to HBA context object.
429 * @pring: Pointer to driver SLI ring object.
431 * This function returns pointer to next response iocb entry
432 * in the response ring. The caller must hold hbalock to make sure
433 * that no other thread consume the next response iocb.
434 * SLI-2/SLI-3 provide different sized iocbs.
436 static inline IOCB_t
*
437 lpfc_resp_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
439 return (IOCB_t
*) (((char *) pring
->rspringaddr
) +
440 pring
->rspidx
* phba
->iocb_rsp_size
);
444 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
445 * @phba: Pointer to HBA context object.
447 * This function is called with hbalock held. This function
448 * allocates a new driver iocb object from the iocb pool. If the
449 * allocation is successful, it returns pointer to the newly
450 * allocated iocb object else it returns NULL.
452 static struct lpfc_iocbq
*
453 __lpfc_sli_get_iocbq(struct lpfc_hba
*phba
)
455 struct list_head
*lpfc_iocb_list
= &phba
->lpfc_iocb_list
;
456 struct lpfc_iocbq
* iocbq
= NULL
;
458 list_remove_head(lpfc_iocb_list
, iocbq
, struct lpfc_iocbq
, list
);
462 if (phba
->iocb_cnt
> phba
->iocb_max
)
463 phba
->iocb_max
= phba
->iocb_cnt
;
468 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
469 * @phba: Pointer to HBA context object.
470 * @xritag: XRI value.
472 * This function clears the sglq pointer from the array of acive
473 * sglq's. The xritag that is passed in is used to index into the
474 * array. Before the xritag can be used it needs to be adjusted
475 * by subtracting the xribase.
477 * Returns sglq ponter = success, NULL = Failure.
479 static struct lpfc_sglq
*
480 __lpfc_clear_active_sglq(struct lpfc_hba
*phba
, uint16_t xritag
)
483 struct lpfc_sglq
*sglq
;
484 adj_xri
= xritag
- phba
->sli4_hba
.max_cfg_param
.xri_base
;
485 if (adj_xri
> phba
->sli4_hba
.max_cfg_param
.max_xri
)
487 sglq
= phba
->sli4_hba
.lpfc_sglq_active_list
[adj_xri
];
488 phba
->sli4_hba
.lpfc_sglq_active_list
[adj_xri
] = NULL
;
493 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
494 * @phba: Pointer to HBA context object.
495 * @xritag: XRI value.
497 * This function returns the sglq pointer from the array of acive
498 * sglq's. The xritag that is passed in is used to index into the
499 * array. Before the xritag can be used it needs to be adjusted
500 * by subtracting the xribase.
502 * Returns sglq ponter = success, NULL = Failure.
505 __lpfc_get_active_sglq(struct lpfc_hba
*phba
, uint16_t xritag
)
508 struct lpfc_sglq
*sglq
;
509 adj_xri
= xritag
- phba
->sli4_hba
.max_cfg_param
.xri_base
;
510 if (adj_xri
> phba
->sli4_hba
.max_cfg_param
.max_xri
)
512 sglq
= phba
->sli4_hba
.lpfc_sglq_active_list
[adj_xri
];
517 * __lpfc_set_rrq_active - set RRQ active bit in the ndlp's xri_bitmap.
518 * @phba: Pointer to HBA context object.
519 * @ndlp: nodelist pointer for this target.
520 * @xritag: xri used in this exchange.
521 * @rxid: Remote Exchange ID.
522 * @send_rrq: Flag used to determine if we should send rrq els cmd.
524 * This function is called with hbalock held.
525 * The active bit is set in the ndlp's active rrq xri_bitmap. Allocates an
526 * rrq struct and adds it to the active_rrq_list.
528 * returns 0 for rrq slot for this xri
529 * < 0 Were not able to get rrq mem or invalid parameter.
532 __lpfc_set_rrq_active(struct lpfc_hba
*phba
, struct lpfc_nodelist
*ndlp
,
533 uint16_t xritag
, uint16_t rxid
, uint16_t send_rrq
)
536 struct lpfc_node_rrq
*rrq
;
544 if (!phba
->cfg_enable_rrq
)
547 if (phba
->pport
->load_flag
& FC_UNLOADING
) {
548 phba
->hba_flag
&= ~HBA_RRQ_ACTIVE
;
554 * set the active bit even if there is no mem available.
556 adj_xri
= xritag
- phba
->sli4_hba
.max_cfg_param
.xri_base
;
558 if (NLP_CHK_FREE_REQ(ndlp
))
561 if (ndlp
->vport
&& (ndlp
->vport
->load_flag
& FC_UNLOADING
))
564 if (test_and_set_bit(adj_xri
, ndlp
->active_rrqs
.xri_bitmap
))
567 rrq
= mempool_alloc(phba
->rrq_pool
, GFP_KERNEL
);
569 rrq
->send_rrq
= send_rrq
;
570 rrq
->xritag
= xritag
;
571 rrq
->rrq_stop_time
= jiffies
+ HZ
* (phba
->fc_ratov
+ 1);
573 rrq
->nlp_DID
= ndlp
->nlp_DID
;
574 rrq
->vport
= ndlp
->vport
;
576 empty
= list_empty(&phba
->active_rrq_list
);
577 rrq
->send_rrq
= send_rrq
;
578 list_add_tail(&rrq
->list
, &phba
->active_rrq_list
);
579 if (!(phba
->hba_flag
& HBA_RRQ_ACTIVE
)) {
580 phba
->hba_flag
|= HBA_RRQ_ACTIVE
;
582 lpfc_worker_wake_up(phba
);
587 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
588 "2921 Can't set rrq active xri:0x%x rxid:0x%x"
589 " DID:0x%x Send:%d\n",
590 xritag
, rxid
, did
, send_rrq
);
595 * lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
596 * @phba: Pointer to HBA context object.
597 * @xritag: xri used in this exchange.
598 * @rrq: The RRQ to be cleared.
602 lpfc_clr_rrq_active(struct lpfc_hba
*phba
,
604 struct lpfc_node_rrq
*rrq
)
607 struct lpfc_nodelist
*ndlp
= NULL
;
609 if ((rrq
->vport
) && NLP_CHK_NODE_ACT(rrq
->ndlp
))
610 ndlp
= lpfc_findnode_did(rrq
->vport
, rrq
->nlp_DID
);
612 /* The target DID could have been swapped (cable swap)
613 * we should use the ndlp from the findnode if it is
616 if ((!ndlp
) && rrq
->ndlp
)
622 adj_xri
= xritag
- phba
->sli4_hba
.max_cfg_param
.xri_base
;
623 if (test_and_clear_bit(adj_xri
, ndlp
->active_rrqs
.xri_bitmap
)) {
626 rrq
->rrq_stop_time
= 0;
629 mempool_free(rrq
, phba
->rrq_pool
);
633 * lpfc_handle_rrq_active - Checks if RRQ has waithed RATOV.
634 * @phba: Pointer to HBA context object.
636 * This function is called with hbalock held. This function
637 * Checks if stop_time (ratov from setting rrq active) has
638 * been reached, if it has and the send_rrq flag is set then
639 * it will call lpfc_send_rrq. If the send_rrq flag is not set
640 * then it will just call the routine to clear the rrq and
641 * free the rrq resource.
642 * The timer is set to the next rrq that is going to expire before
643 * leaving the routine.
647 lpfc_handle_rrq_active(struct lpfc_hba
*phba
)
649 struct lpfc_node_rrq
*rrq
;
650 struct lpfc_node_rrq
*nextrrq
;
651 unsigned long next_time
;
652 unsigned long iflags
;
655 spin_lock_irqsave(&phba
->hbalock
, iflags
);
656 phba
->hba_flag
&= ~HBA_RRQ_ACTIVE
;
657 next_time
= jiffies
+ HZ
* (phba
->fc_ratov
+ 1);
658 list_for_each_entry_safe(rrq
, nextrrq
,
659 &phba
->active_rrq_list
, list
) {
660 if (time_after(jiffies
, rrq
->rrq_stop_time
))
661 list_move(&rrq
->list
, &send_rrq
);
662 else if (time_before(rrq
->rrq_stop_time
, next_time
))
663 next_time
= rrq
->rrq_stop_time
;
665 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
666 if (!list_empty(&phba
->active_rrq_list
))
667 mod_timer(&phba
->rrq_tmr
, next_time
);
668 list_for_each_entry_safe(rrq
, nextrrq
, &send_rrq
, list
) {
669 list_del(&rrq
->list
);
671 /* this call will free the rrq */
672 lpfc_clr_rrq_active(phba
, rrq
->xritag
, rrq
);
673 else if (lpfc_send_rrq(phba
, rrq
)) {
674 /* if we send the rrq then the completion handler
675 * will clear the bit in the xribitmap.
677 lpfc_clr_rrq_active(phba
, rrq
->xritag
,
684 * lpfc_get_active_rrq - Get the active RRQ for this exchange.
685 * @vport: Pointer to vport context object.
686 * @xri: The xri used in the exchange.
687 * @did: The targets DID for this exchange.
689 * returns NULL = rrq not found in the phba->active_rrq_list.
690 * rrq = rrq for this xri and target.
692 struct lpfc_node_rrq
*
693 lpfc_get_active_rrq(struct lpfc_vport
*vport
, uint16_t xri
, uint32_t did
)
695 struct lpfc_hba
*phba
= vport
->phba
;
696 struct lpfc_node_rrq
*rrq
;
697 struct lpfc_node_rrq
*nextrrq
;
698 unsigned long iflags
;
700 if (phba
->sli_rev
!= LPFC_SLI_REV4
)
702 spin_lock_irqsave(&phba
->hbalock
, iflags
);
703 list_for_each_entry_safe(rrq
, nextrrq
, &phba
->active_rrq_list
, list
) {
704 if (rrq
->vport
== vport
&& rrq
->xritag
== xri
&&
705 rrq
->nlp_DID
== did
){
706 list_del(&rrq
->list
);
707 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
711 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
716 * lpfc_cleanup_vports_rrqs - Remove and clear the active RRQ for this vport.
717 * @vport: Pointer to vport context object.
718 * @ndlp: Pointer to the lpfc_node_list structure.
719 * If ndlp is NULL Remove all active RRQs for this vport from the
720 * phba->active_rrq_list and clear the rrq.
721 * If ndlp is not NULL then only remove rrqs for this vport & this ndlp.
724 lpfc_cleanup_vports_rrqs(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
727 struct lpfc_hba
*phba
= vport
->phba
;
728 struct lpfc_node_rrq
*rrq
;
729 struct lpfc_node_rrq
*nextrrq
;
730 unsigned long iflags
;
733 if (phba
->sli_rev
!= LPFC_SLI_REV4
)
736 lpfc_sli4_vport_delete_els_xri_aborted(vport
);
737 lpfc_sli4_vport_delete_fcp_xri_aborted(vport
);
739 spin_lock_irqsave(&phba
->hbalock
, iflags
);
740 list_for_each_entry_safe(rrq
, nextrrq
, &phba
->active_rrq_list
, list
)
741 if ((rrq
->vport
== vport
) && (!ndlp
|| rrq
->ndlp
== ndlp
))
742 list_move(&rrq
->list
, &rrq_list
);
743 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
745 list_for_each_entry_safe(rrq
, nextrrq
, &rrq_list
, list
) {
746 list_del(&rrq
->list
);
747 lpfc_clr_rrq_active(phba
, rrq
->xritag
, rrq
);
752 * lpfc_cleanup_wt_rrqs - Remove all rrq's from the active list.
753 * @phba: Pointer to HBA context object.
755 * Remove all rrqs from the phba->active_rrq_list and free them by
756 * calling __lpfc_clr_active_rrq
760 lpfc_cleanup_wt_rrqs(struct lpfc_hba
*phba
)
762 struct lpfc_node_rrq
*rrq
;
763 struct lpfc_node_rrq
*nextrrq
;
764 unsigned long next_time
;
765 unsigned long iflags
;
768 if (phba
->sli_rev
!= LPFC_SLI_REV4
)
770 spin_lock_irqsave(&phba
->hbalock
, iflags
);
771 phba
->hba_flag
&= ~HBA_RRQ_ACTIVE
;
772 next_time
= jiffies
+ HZ
* (phba
->fc_ratov
* 2);
773 list_splice_init(&phba
->active_rrq_list
, &rrq_list
);
774 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
776 list_for_each_entry_safe(rrq
, nextrrq
, &rrq_list
, list
) {
777 list_del(&rrq
->list
);
778 lpfc_clr_rrq_active(phba
, rrq
->xritag
, rrq
);
780 if (!list_empty(&phba
->active_rrq_list
))
781 mod_timer(&phba
->rrq_tmr
, next_time
);
786 * lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
787 * @phba: Pointer to HBA context object.
788 * @ndlp: Targets nodelist pointer for this exchange.
789 * @xritag the xri in the bitmap to test.
791 * This function is called with hbalock held. This function
792 * returns 0 = rrq not active for this xri
793 * 1 = rrq is valid for this xri.
796 lpfc_test_rrq_active(struct lpfc_hba
*phba
, struct lpfc_nodelist
*ndlp
,
801 adj_xri
= xritag
- phba
->sli4_hba
.max_cfg_param
.xri_base
;
804 if (test_bit(adj_xri
, ndlp
->active_rrqs
.xri_bitmap
))
811 * lpfc_set_rrq_active - set RRQ active bit in xri_bitmap.
812 * @phba: Pointer to HBA context object.
813 * @ndlp: nodelist pointer for this target.
814 * @xritag: xri used in this exchange.
815 * @rxid: Remote Exchange ID.
816 * @send_rrq: Flag used to determine if we should send rrq els cmd.
818 * This function takes the hbalock.
819 * The active bit is always set in the active rrq xri_bitmap even
820 * if there is no slot avaiable for the other rrq information.
822 * returns 0 rrq actived for this xri
823 * < 0 No memory or invalid ndlp.
826 lpfc_set_rrq_active(struct lpfc_hba
*phba
, struct lpfc_nodelist
*ndlp
,
827 uint16_t xritag
, uint16_t rxid
, uint16_t send_rrq
)
830 unsigned long iflags
;
832 spin_lock_irqsave(&phba
->hbalock
, iflags
);
833 ret
= __lpfc_set_rrq_active(phba
, ndlp
, xritag
, rxid
, send_rrq
);
834 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
839 * __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool
840 * @phba: Pointer to HBA context object.
841 * @piocb: Pointer to the iocbq.
843 * This function is called with hbalock held. This function
844 * Gets a new driver sglq object from the sglq list. If the
845 * list is not empty then it is successful, it returns pointer to the newly
846 * allocated sglq object else it returns NULL.
848 static struct lpfc_sglq
*
849 __lpfc_sli_get_sglq(struct lpfc_hba
*phba
, struct lpfc_iocbq
*piocbq
)
851 struct list_head
*lpfc_sgl_list
= &phba
->sli4_hba
.lpfc_sgl_list
;
852 struct lpfc_sglq
*sglq
= NULL
;
853 struct lpfc_sglq
*start_sglq
= NULL
;
855 struct lpfc_scsi_buf
*lpfc_cmd
;
856 struct lpfc_nodelist
*ndlp
;
859 if (piocbq
->iocb_flag
& LPFC_IO_FCP
) {
860 lpfc_cmd
= (struct lpfc_scsi_buf
*) piocbq
->context1
;
861 ndlp
= lpfc_cmd
->rdata
->pnode
;
862 } else if ((piocbq
->iocb
.ulpCommand
== CMD_GEN_REQUEST64_CR
) &&
863 !(piocbq
->iocb_flag
& LPFC_IO_LIBDFC
))
864 ndlp
= piocbq
->context_un
.ndlp
;
866 ndlp
= piocbq
->context1
;
868 list_remove_head(lpfc_sgl_list
, sglq
, struct lpfc_sglq
, list
);
873 adj_xri
= sglq
->sli4_xritag
-
874 phba
->sli4_hba
.max_cfg_param
.xri_base
;
875 if (lpfc_test_rrq_active(phba
, ndlp
, sglq
->sli4_xritag
)) {
876 /* This xri has an rrq outstanding for this DID.
877 * put it back in the list and get another xri.
879 list_add_tail(&sglq
->list
, lpfc_sgl_list
);
881 list_remove_head(lpfc_sgl_list
, sglq
,
882 struct lpfc_sglq
, list
);
883 if (sglq
== start_sglq
) {
891 phba
->sli4_hba
.lpfc_sglq_active_list
[adj_xri
] = sglq
;
892 sglq
->state
= SGL_ALLOCATED
;
898 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
899 * @phba: Pointer to HBA context object.
901 * This function is called with no lock held. This function
902 * allocates a new driver iocb object from the iocb pool. If the
903 * allocation is successful, it returns pointer to the newly
904 * allocated iocb object else it returns NULL.
907 lpfc_sli_get_iocbq(struct lpfc_hba
*phba
)
909 struct lpfc_iocbq
* iocbq
= NULL
;
910 unsigned long iflags
;
912 spin_lock_irqsave(&phba
->hbalock
, iflags
);
913 iocbq
= __lpfc_sli_get_iocbq(phba
);
914 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
919 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
920 * @phba: Pointer to HBA context object.
921 * @iocbq: Pointer to driver iocb object.
923 * This function is called with hbalock held to release driver
924 * iocb object to the iocb pool. The iotag in the iocb object
925 * does not change for each use of the iocb object. This function
926 * clears all other fields of the iocb object when it is freed.
927 * The sqlq structure that holds the xritag and phys and virtual
928 * mappings for the scatter gather list is retrieved from the
929 * active array of sglq. The get of the sglq pointer also clears
930 * the entry in the array. If the status of the IO indiactes that
931 * this IO was aborted then the sglq entry it put on the
932 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
933 * IO has good status or fails for any other reason then the sglq
934 * entry is added to the free list (lpfc_sgl_list).
937 __lpfc_sli_release_iocbq_s4(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
939 struct lpfc_sglq
*sglq
;
940 size_t start_clean
= offsetof(struct lpfc_iocbq
, iocb
);
941 unsigned long iflag
= 0;
942 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
944 if (iocbq
->sli4_xritag
== NO_XRI
)
947 sglq
= __lpfc_clear_active_sglq(phba
, iocbq
->sli4_xritag
);
949 if ((iocbq
->iocb_flag
& LPFC_EXCHANGE_BUSY
) &&
950 (sglq
->state
!= SGL_XRI_ABORTED
)) {
951 spin_lock_irqsave(&phba
->sli4_hba
.abts_sgl_list_lock
,
953 list_add(&sglq
->list
,
954 &phba
->sli4_hba
.lpfc_abts_els_sgl_list
);
955 spin_unlock_irqrestore(
956 &phba
->sli4_hba
.abts_sgl_list_lock
, iflag
);
958 sglq
->state
= SGL_FREED
;
960 list_add_tail(&sglq
->list
,
961 &phba
->sli4_hba
.lpfc_sgl_list
);
963 /* Check if TXQ queue needs to be serviced */
965 lpfc_worker_wake_up(phba
);
971 * Clean all volatile data fields, preserve iotag and node struct.
973 memset((char *)iocbq
+ start_clean
, 0, sizeof(*iocbq
) - start_clean
);
974 iocbq
->sli4_xritag
= NO_XRI
;
975 list_add_tail(&iocbq
->list
, &phba
->lpfc_iocb_list
);
980 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
981 * @phba: Pointer to HBA context object.
982 * @iocbq: Pointer to driver iocb object.
984 * This function is called with hbalock held to release driver
985 * iocb object to the iocb pool. The iotag in the iocb object
986 * does not change for each use of the iocb object. This function
987 * clears all other fields of the iocb object when it is freed.
990 __lpfc_sli_release_iocbq_s3(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
992 size_t start_clean
= offsetof(struct lpfc_iocbq
, iocb
);
995 * Clean all volatile data fields, preserve iotag and node struct.
997 memset((char*)iocbq
+ start_clean
, 0, sizeof(*iocbq
) - start_clean
);
998 iocbq
->sli4_xritag
= NO_XRI
;
999 list_add_tail(&iocbq
->list
, &phba
->lpfc_iocb_list
);
1003 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
1004 * @phba: Pointer to HBA context object.
1005 * @iocbq: Pointer to driver iocb object.
1007 * This function is called with hbalock held to release driver
1008 * iocb object to the iocb pool. The iotag in the iocb object
1009 * does not change for each use of the iocb object. This function
1010 * clears all other fields of the iocb object when it is freed.
1013 __lpfc_sli_release_iocbq(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
1015 phba
->__lpfc_sli_release_iocbq(phba
, iocbq
);
1020 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
1021 * @phba: Pointer to HBA context object.
1022 * @iocbq: Pointer to driver iocb object.
1024 * This function is called with no lock held to release the iocb to
1028 lpfc_sli_release_iocbq(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
1030 unsigned long iflags
;
1033 * Clean all volatile data fields, preserve iotag and node struct.
1035 spin_lock_irqsave(&phba
->hbalock
, iflags
);
1036 __lpfc_sli_release_iocbq(phba
, iocbq
);
1037 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
1041 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
1042 * @phba: Pointer to HBA context object.
1043 * @iocblist: List of IOCBs.
1044 * @ulpstatus: ULP status in IOCB command field.
1045 * @ulpWord4: ULP word-4 in IOCB command field.
1047 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
1048 * on the list by invoking the complete callback function associated with the
1049 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
1053 lpfc_sli_cancel_iocbs(struct lpfc_hba
*phba
, struct list_head
*iocblist
,
1054 uint32_t ulpstatus
, uint32_t ulpWord4
)
1056 struct lpfc_iocbq
*piocb
;
1058 while (!list_empty(iocblist
)) {
1059 list_remove_head(iocblist
, piocb
, struct lpfc_iocbq
, list
);
1061 if (!piocb
->iocb_cmpl
)
1062 lpfc_sli_release_iocbq(phba
, piocb
);
1064 piocb
->iocb
.ulpStatus
= ulpstatus
;
1065 piocb
->iocb
.un
.ulpWord
[4] = ulpWord4
;
1066 (piocb
->iocb_cmpl
) (phba
, piocb
, piocb
);
1073 * lpfc_sli_iocb_cmd_type - Get the iocb type
1074 * @iocb_cmnd: iocb command code.
1076 * This function is called by ring event handler function to get the iocb type.
1077 * This function translates the iocb command to an iocb command type used to
1078 * decide the final disposition of each completed IOCB.
1079 * The function returns
1080 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
1081 * LPFC_SOL_IOCB if it is a solicited iocb completion
1082 * LPFC_ABORT_IOCB if it is an abort iocb
1083 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
1085 * The caller is not required to hold any lock.
1087 static lpfc_iocb_type
1088 lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd
)
1090 lpfc_iocb_type type
= LPFC_UNKNOWN_IOCB
;
1092 if (iocb_cmnd
> CMD_MAX_IOCB_CMD
)
1095 switch (iocb_cmnd
) {
1096 case CMD_XMIT_SEQUENCE_CR
:
1097 case CMD_XMIT_SEQUENCE_CX
:
1098 case CMD_XMIT_BCAST_CN
:
1099 case CMD_XMIT_BCAST_CX
:
1100 case CMD_ELS_REQUEST_CR
:
1101 case CMD_ELS_REQUEST_CX
:
1102 case CMD_CREATE_XRI_CR
:
1103 case CMD_CREATE_XRI_CX
:
1104 case CMD_GET_RPI_CN
:
1105 case CMD_XMIT_ELS_RSP_CX
:
1106 case CMD_GET_RPI_CR
:
1107 case CMD_FCP_IWRITE_CR
:
1108 case CMD_FCP_IWRITE_CX
:
1109 case CMD_FCP_IREAD_CR
:
1110 case CMD_FCP_IREAD_CX
:
1111 case CMD_FCP_ICMND_CR
:
1112 case CMD_FCP_ICMND_CX
:
1113 case CMD_FCP_TSEND_CX
:
1114 case CMD_FCP_TRSP_CX
:
1115 case CMD_FCP_TRECEIVE_CX
:
1116 case CMD_FCP_AUTO_TRSP_CX
:
1117 case CMD_ADAPTER_MSG
:
1118 case CMD_ADAPTER_DUMP
:
1119 case CMD_XMIT_SEQUENCE64_CR
:
1120 case CMD_XMIT_SEQUENCE64_CX
:
1121 case CMD_XMIT_BCAST64_CN
:
1122 case CMD_XMIT_BCAST64_CX
:
1123 case CMD_ELS_REQUEST64_CR
:
1124 case CMD_ELS_REQUEST64_CX
:
1125 case CMD_FCP_IWRITE64_CR
:
1126 case CMD_FCP_IWRITE64_CX
:
1127 case CMD_FCP_IREAD64_CR
:
1128 case CMD_FCP_IREAD64_CX
:
1129 case CMD_FCP_ICMND64_CR
:
1130 case CMD_FCP_ICMND64_CX
:
1131 case CMD_FCP_TSEND64_CX
:
1132 case CMD_FCP_TRSP64_CX
:
1133 case CMD_FCP_TRECEIVE64_CX
:
1134 case CMD_GEN_REQUEST64_CR
:
1135 case CMD_GEN_REQUEST64_CX
:
1136 case CMD_XMIT_ELS_RSP64_CX
:
1137 case DSSCMD_IWRITE64_CR
:
1138 case DSSCMD_IWRITE64_CX
:
1139 case DSSCMD_IREAD64_CR
:
1140 case DSSCMD_IREAD64_CX
:
1141 type
= LPFC_SOL_IOCB
;
1143 case CMD_ABORT_XRI_CN
:
1144 case CMD_ABORT_XRI_CX
:
1145 case CMD_CLOSE_XRI_CN
:
1146 case CMD_CLOSE_XRI_CX
:
1147 case CMD_XRI_ABORTED_CX
:
1148 case CMD_ABORT_MXRI64_CN
:
1149 case CMD_XMIT_BLS_RSP64_CX
:
1150 type
= LPFC_ABORT_IOCB
;
1152 case CMD_RCV_SEQUENCE_CX
:
1153 case CMD_RCV_ELS_REQ_CX
:
1154 case CMD_RCV_SEQUENCE64_CX
:
1155 case CMD_RCV_ELS_REQ64_CX
:
1156 case CMD_ASYNC_STATUS
:
1157 case CMD_IOCB_RCV_SEQ64_CX
:
1158 case CMD_IOCB_RCV_ELS64_CX
:
1159 case CMD_IOCB_RCV_CONT64_CX
:
1160 case CMD_IOCB_RET_XRI64_CX
:
1161 type
= LPFC_UNSOL_IOCB
;
1163 case CMD_IOCB_XMIT_MSEQ64_CR
:
1164 case CMD_IOCB_XMIT_MSEQ64_CX
:
1165 case CMD_IOCB_RCV_SEQ_LIST64_CX
:
1166 case CMD_IOCB_RCV_ELS_LIST64_CX
:
1167 case CMD_IOCB_CLOSE_EXTENDED_CN
:
1168 case CMD_IOCB_ABORT_EXTENDED_CN
:
1169 case CMD_IOCB_RET_HBQE64_CN
:
1170 case CMD_IOCB_FCP_IBIDIR64_CR
:
1171 case CMD_IOCB_FCP_IBIDIR64_CX
:
1172 case CMD_IOCB_FCP_ITASKMGT64_CX
:
1173 case CMD_IOCB_LOGENTRY_CN
:
1174 case CMD_IOCB_LOGENTRY_ASYNC_CN
:
1175 printk("%s - Unhandled SLI-3 Command x%x\n",
1176 __func__
, iocb_cmnd
);
1177 type
= LPFC_UNKNOWN_IOCB
;
1180 type
= LPFC_UNKNOWN_IOCB
;
1188 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
1189 * @phba: Pointer to HBA context object.
1191 * This function is called from SLI initialization code
1192 * to configure every ring of the HBA's SLI interface. The
1193 * caller is not required to hold any lock. This function issues
1194 * a config_ring mailbox command for each ring.
1195 * This function returns zero if successful else returns a negative
1199 lpfc_sli_ring_map(struct lpfc_hba
*phba
)
1201 struct lpfc_sli
*psli
= &phba
->sli
;
1206 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
1210 phba
->link_state
= LPFC_INIT_MBX_CMDS
;
1211 for (i
= 0; i
< psli
->num_rings
; i
++) {
1212 lpfc_config_ring(phba
, i
, pmb
);
1213 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
1214 if (rc
!= MBX_SUCCESS
) {
1215 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1216 "0446 Adapter failed to init (%d), "
1217 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
1219 rc
, pmbox
->mbxCommand
,
1220 pmbox
->mbxStatus
, i
);
1221 phba
->link_state
= LPFC_HBA_ERROR
;
1226 mempool_free(pmb
, phba
->mbox_mem_pool
);
1231 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
1232 * @phba: Pointer to HBA context object.
1233 * @pring: Pointer to driver SLI ring object.
1234 * @piocb: Pointer to the driver iocb object.
1236 * This function is called with hbalock held. The function adds the
1237 * new iocb to txcmplq of the given ring. This function always returns
1238 * 0. If this function is called for ELS ring, this function checks if
1239 * there is a vport associated with the ELS command. This function also
1240 * starts els_tmofunc timer if this is an ELS command.
1243 lpfc_sli_ringtxcmpl_put(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
1244 struct lpfc_iocbq
*piocb
)
1246 list_add_tail(&piocb
->list
, &pring
->txcmplq
);
1247 piocb
->iocb_flag
|= LPFC_IO_ON_Q
;
1248 pring
->txcmplq_cnt
++;
1249 if (pring
->txcmplq_cnt
> pring
->txcmplq_max
)
1250 pring
->txcmplq_max
= pring
->txcmplq_cnt
;
1252 if ((unlikely(pring
->ringno
== LPFC_ELS_RING
)) &&
1253 (piocb
->iocb
.ulpCommand
!= CMD_ABORT_XRI_CN
) &&
1254 (piocb
->iocb
.ulpCommand
!= CMD_CLOSE_XRI_CN
)) {
1258 mod_timer(&piocb
->vport
->els_tmofunc
,
1259 jiffies
+ HZ
* (phba
->fc_ratov
<< 1));
1267 * lpfc_sli_ringtx_get - Get first element of the txq
1268 * @phba: Pointer to HBA context object.
1269 * @pring: Pointer to driver SLI ring object.
1271 * This function is called with hbalock held to get next
1272 * iocb in txq of the given ring. If there is any iocb in
1273 * the txq, the function returns first iocb in the list after
1274 * removing the iocb from the list, else it returns NULL.
1277 lpfc_sli_ringtx_get(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
1279 struct lpfc_iocbq
*cmd_iocb
;
1281 list_remove_head((&pring
->txq
), cmd_iocb
, struct lpfc_iocbq
, list
);
1282 if (cmd_iocb
!= NULL
)
1288 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
1289 * @phba: Pointer to HBA context object.
1290 * @pring: Pointer to driver SLI ring object.
1292 * This function is called with hbalock held and the caller must post the
1293 * iocb without releasing the lock. If the caller releases the lock,
1294 * iocb slot returned by the function is not guaranteed to be available.
1295 * The function returns pointer to the next available iocb slot if there
1296 * is available slot in the ring, else it returns NULL.
1297 * If the get index of the ring is ahead of the put index, the function
1298 * will post an error attention event to the worker thread to take the
1299 * HBA to offline state.
1302 lpfc_sli_next_iocb_slot (struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
1304 struct lpfc_pgp
*pgp
= &phba
->port_gp
[pring
->ringno
];
1305 uint32_t max_cmd_idx
= pring
->numCiocb
;
1306 if ((pring
->next_cmdidx
== pring
->cmdidx
) &&
1307 (++pring
->next_cmdidx
>= max_cmd_idx
))
1308 pring
->next_cmdidx
= 0;
1310 if (unlikely(pring
->local_getidx
== pring
->next_cmdidx
)) {
1312 pring
->local_getidx
= le32_to_cpu(pgp
->cmdGetInx
);
1314 if (unlikely(pring
->local_getidx
>= max_cmd_idx
)) {
1315 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
1316 "0315 Ring %d issue: portCmdGet %d "
1317 "is bigger than cmd ring %d\n",
1319 pring
->local_getidx
, max_cmd_idx
);
1321 phba
->link_state
= LPFC_HBA_ERROR
;
1323 * All error attention handlers are posted to
1326 phba
->work_ha
|= HA_ERATT
;
1327 phba
->work_hs
= HS_FFER3
;
1329 lpfc_worker_wake_up(phba
);
1334 if (pring
->local_getidx
== pring
->next_cmdidx
)
1338 return lpfc_cmd_iocb(phba
, pring
);
1342 * lpfc_sli_next_iotag - Get an iotag for the iocb
1343 * @phba: Pointer to HBA context object.
1344 * @iocbq: Pointer to driver iocb object.
1346 * This function gets an iotag for the iocb. If there is no unused iotag and
1347 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
1348 * array and assigns a new iotag.
1349 * The function returns the allocated iotag if successful, else returns zero.
1350 * Zero is not a valid iotag.
1351 * The caller is not required to hold any lock.
1354 lpfc_sli_next_iotag(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
1356 struct lpfc_iocbq
**new_arr
;
1357 struct lpfc_iocbq
**old_arr
;
1359 struct lpfc_sli
*psli
= &phba
->sli
;
1362 spin_lock_irq(&phba
->hbalock
);
1363 iotag
= psli
->last_iotag
;
1364 if(++iotag
< psli
->iocbq_lookup_len
) {
1365 psli
->last_iotag
= iotag
;
1366 psli
->iocbq_lookup
[iotag
] = iocbq
;
1367 spin_unlock_irq(&phba
->hbalock
);
1368 iocbq
->iotag
= iotag
;
1370 } else if (psli
->iocbq_lookup_len
< (0xffff
1371 - LPFC_IOCBQ_LOOKUP_INCREMENT
)) {
1372 new_len
= psli
->iocbq_lookup_len
+ LPFC_IOCBQ_LOOKUP_INCREMENT
;
1373 spin_unlock_irq(&phba
->hbalock
);
1374 new_arr
= kzalloc(new_len
* sizeof (struct lpfc_iocbq
*),
1377 spin_lock_irq(&phba
->hbalock
);
1378 old_arr
= psli
->iocbq_lookup
;
1379 if (new_len
<= psli
->iocbq_lookup_len
) {
1380 /* highly unprobable case */
1382 iotag
= psli
->last_iotag
;
1383 if(++iotag
< psli
->iocbq_lookup_len
) {
1384 psli
->last_iotag
= iotag
;
1385 psli
->iocbq_lookup
[iotag
] = iocbq
;
1386 spin_unlock_irq(&phba
->hbalock
);
1387 iocbq
->iotag
= iotag
;
1390 spin_unlock_irq(&phba
->hbalock
);
1393 if (psli
->iocbq_lookup
)
1394 memcpy(new_arr
, old_arr
,
1395 ((psli
->last_iotag
+ 1) *
1396 sizeof (struct lpfc_iocbq
*)));
1397 psli
->iocbq_lookup
= new_arr
;
1398 psli
->iocbq_lookup_len
= new_len
;
1399 psli
->last_iotag
= iotag
;
1400 psli
->iocbq_lookup
[iotag
] = iocbq
;
1401 spin_unlock_irq(&phba
->hbalock
);
1402 iocbq
->iotag
= iotag
;
1407 spin_unlock_irq(&phba
->hbalock
);
1409 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
1410 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1417 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
1418 * @phba: Pointer to HBA context object.
1419 * @pring: Pointer to driver SLI ring object.
1420 * @iocb: Pointer to iocb slot in the ring.
1421 * @nextiocb: Pointer to driver iocb object which need to be
1422 * posted to firmware.
1424 * This function is called with hbalock held to post a new iocb to
1425 * the firmware. This function copies the new iocb to ring iocb slot and
1426 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1427 * a completion call back for this iocb else the function will free the
1431 lpfc_sli_submit_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
1432 IOCB_t
*iocb
, struct lpfc_iocbq
*nextiocb
)
1437 nextiocb
->iocb
.ulpIoTag
= (nextiocb
->iocb_cmpl
) ? nextiocb
->iotag
: 0;
1440 if (pring
->ringno
== LPFC_ELS_RING
) {
1441 lpfc_debugfs_slow_ring_trc(phba
,
1442 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1443 *(((uint32_t *) &nextiocb
->iocb
) + 4),
1444 *(((uint32_t *) &nextiocb
->iocb
) + 6),
1445 *(((uint32_t *) &nextiocb
->iocb
) + 7));
1449 * Issue iocb command to adapter
1451 lpfc_sli_pcimem_bcopy(&nextiocb
->iocb
, iocb
, phba
->iocb_cmd_size
);
1453 pring
->stats
.iocb_cmd
++;
1456 * If there is no completion routine to call, we can release the
1457 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1458 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1460 if (nextiocb
->iocb_cmpl
)
1461 lpfc_sli_ringtxcmpl_put(phba
, pring
, nextiocb
);
1463 __lpfc_sli_release_iocbq(phba
, nextiocb
);
1466 * Let the HBA know what IOCB slot will be the next one the
1467 * driver will put a command into.
1469 pring
->cmdidx
= pring
->next_cmdidx
;
1470 writel(pring
->cmdidx
, &phba
->host_gp
[pring
->ringno
].cmdPutInx
);
1474 * lpfc_sli_update_full_ring - Update the chip attention register
1475 * @phba: Pointer to HBA context object.
1476 * @pring: Pointer to driver SLI ring object.
1478 * The caller is not required to hold any lock for calling this function.
1479 * This function updates the chip attention bits for the ring to inform firmware
1480 * that there are pending work to be done for this ring and requests an
1481 * interrupt when there is space available in the ring. This function is
1482 * called when the driver is unable to post more iocbs to the ring due
1483 * to unavailability of space in the ring.
1486 lpfc_sli_update_full_ring(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
1488 int ringno
= pring
->ringno
;
1490 pring
->flag
|= LPFC_CALL_RING_AVAILABLE
;
1495 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1496 * The HBA will tell us when an IOCB entry is available.
1498 writel((CA_R0ATT
|CA_R0CE_REQ
) << (ringno
*4), phba
->CAregaddr
);
1499 readl(phba
->CAregaddr
); /* flush */
1501 pring
->stats
.iocb_cmd_full
++;
1505 * lpfc_sli_update_ring - Update chip attention register
1506 * @phba: Pointer to HBA context object.
1507 * @pring: Pointer to driver SLI ring object.
1509 * This function updates the chip attention register bit for the
1510 * given ring to inform HBA that there is more work to be done
1511 * in this ring. The caller is not required to hold any lock.
1514 lpfc_sli_update_ring(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
1516 int ringno
= pring
->ringno
;
1519 * Tell the HBA that there is work to do in this ring.
1521 if (!(phba
->sli3_options
& LPFC_SLI3_CRP_ENABLED
)) {
1523 writel(CA_R0ATT
<< (ringno
* 4), phba
->CAregaddr
);
1524 readl(phba
->CAregaddr
); /* flush */
1529 * lpfc_sli_resume_iocb - Process iocbs in the txq
1530 * @phba: Pointer to HBA context object.
1531 * @pring: Pointer to driver SLI ring object.
1533 * This function is called with hbalock held to post pending iocbs
1534 * in the txq to the firmware. This function is called when driver
1535 * detects space available in the ring.
1538 lpfc_sli_resume_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
1541 struct lpfc_iocbq
*nextiocb
;
1545 * (a) there is anything on the txq to send
1547 * (c) link attention events can be processed (fcp ring only)
1548 * (d) IOCB processing is not blocked by the outstanding mbox command.
1550 if (pring
->txq_cnt
&&
1551 lpfc_is_link_up(phba
) &&
1552 (pring
->ringno
!= phba
->sli
.fcp_ring
||
1553 phba
->sli
.sli_flag
& LPFC_PROCESS_LA
)) {
1555 while ((iocb
= lpfc_sli_next_iocb_slot(phba
, pring
)) &&
1556 (nextiocb
= lpfc_sli_ringtx_get(phba
, pring
)))
1557 lpfc_sli_submit_iocb(phba
, pring
, iocb
, nextiocb
);
1560 lpfc_sli_update_ring(phba
, pring
);
1562 lpfc_sli_update_full_ring(phba
, pring
);
1569 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
1570 * @phba: Pointer to HBA context object.
1571 * @hbqno: HBQ number.
1573 * This function is called with hbalock held to get the next
1574 * available slot for the given HBQ. If there is free slot
1575 * available for the HBQ it will return pointer to the next available
1576 * HBQ entry else it will return NULL.
1578 static struct lpfc_hbq_entry
*
1579 lpfc_sli_next_hbq_slot(struct lpfc_hba
*phba
, uint32_t hbqno
)
1581 struct hbq_s
*hbqp
= &phba
->hbqs
[hbqno
];
1583 if (hbqp
->next_hbqPutIdx
== hbqp
->hbqPutIdx
&&
1584 ++hbqp
->next_hbqPutIdx
>= hbqp
->entry_count
)
1585 hbqp
->next_hbqPutIdx
= 0;
1587 if (unlikely(hbqp
->local_hbqGetIdx
== hbqp
->next_hbqPutIdx
)) {
1588 uint32_t raw_index
= phba
->hbq_get
[hbqno
];
1589 uint32_t getidx
= le32_to_cpu(raw_index
);
1591 hbqp
->local_hbqGetIdx
= getidx
;
1593 if (unlikely(hbqp
->local_hbqGetIdx
>= hbqp
->entry_count
)) {
1594 lpfc_printf_log(phba
, KERN_ERR
,
1595 LOG_SLI
| LOG_VPORT
,
1596 "1802 HBQ %d: local_hbqGetIdx "
1597 "%u is > than hbqp->entry_count %u\n",
1598 hbqno
, hbqp
->local_hbqGetIdx
,
1601 phba
->link_state
= LPFC_HBA_ERROR
;
1605 if (hbqp
->local_hbqGetIdx
== hbqp
->next_hbqPutIdx
)
1609 return (struct lpfc_hbq_entry
*) phba
->hbqs
[hbqno
].hbq_virt
+
1614 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
1615 * @phba: Pointer to HBA context object.
1617 * This function is called with no lock held to free all the
1618 * hbq buffers while uninitializing the SLI interface. It also
1619 * frees the HBQ buffers returned by the firmware but not yet
1620 * processed by the upper layers.
1623 lpfc_sli_hbqbuf_free_all(struct lpfc_hba
*phba
)
1625 struct lpfc_dmabuf
*dmabuf
, *next_dmabuf
;
1626 struct hbq_dmabuf
*hbq_buf
;
1627 unsigned long flags
;
1631 hbq_count
= lpfc_sli_hbq_count();
1632 /* Return all memory used by all HBQs */
1633 spin_lock_irqsave(&phba
->hbalock
, flags
);
1634 for (i
= 0; i
< hbq_count
; ++i
) {
1635 list_for_each_entry_safe(dmabuf
, next_dmabuf
,
1636 &phba
->hbqs
[i
].hbq_buffer_list
, list
) {
1637 hbq_buf
= container_of(dmabuf
, struct hbq_dmabuf
, dbuf
);
1638 list_del(&hbq_buf
->dbuf
.list
);
1639 (phba
->hbqs
[i
].hbq_free_buffer
)(phba
, hbq_buf
);
1641 phba
->hbqs
[i
].buffer_count
= 0;
1643 /* Return all HBQ buffer that are in-fly */
1644 list_for_each_entry_safe(dmabuf
, next_dmabuf
, &phba
->rb_pend_list
,
1646 hbq_buf
= container_of(dmabuf
, struct hbq_dmabuf
, dbuf
);
1647 list_del(&hbq_buf
->dbuf
.list
);
1648 if (hbq_buf
->tag
== -1) {
1649 (phba
->hbqs
[LPFC_ELS_HBQ
].hbq_free_buffer
)
1652 hbqno
= hbq_buf
->tag
>> 16;
1653 if (hbqno
>= LPFC_MAX_HBQS
)
1654 (phba
->hbqs
[LPFC_ELS_HBQ
].hbq_free_buffer
)
1657 (phba
->hbqs
[hbqno
].hbq_free_buffer
)(phba
,
1662 /* Mark the HBQs not in use */
1663 phba
->hbq_in_use
= 0;
1664 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
1668 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
1669 * @phba: Pointer to HBA context object.
1670 * @hbqno: HBQ number.
1671 * @hbq_buf: Pointer to HBQ buffer.
1673 * This function is called with the hbalock held to post a
1674 * hbq buffer to the firmware. If the function finds an empty
1675 * slot in the HBQ, it will post the buffer. The function will return
1676 * pointer to the hbq entry if it successfully post the buffer
1677 * else it will return NULL.
1680 lpfc_sli_hbq_to_firmware(struct lpfc_hba
*phba
, uint32_t hbqno
,
1681 struct hbq_dmabuf
*hbq_buf
)
1683 return phba
->lpfc_sli_hbq_to_firmware(phba
, hbqno
, hbq_buf
);
1687 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
1688 * @phba: Pointer to HBA context object.
1689 * @hbqno: HBQ number.
1690 * @hbq_buf: Pointer to HBQ buffer.
1692 * This function is called with the hbalock held to post a hbq buffer to the
1693 * firmware. If the function finds an empty slot in the HBQ, it will post the
1694 * buffer and place it on the hbq_buffer_list. The function will return zero if
1695 * it successfully post the buffer else it will return an error.
1698 lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba
*phba
, uint32_t hbqno
,
1699 struct hbq_dmabuf
*hbq_buf
)
1701 struct lpfc_hbq_entry
*hbqe
;
1702 dma_addr_t physaddr
= hbq_buf
->dbuf
.phys
;
1704 /* Get next HBQ entry slot to use */
1705 hbqe
= lpfc_sli_next_hbq_slot(phba
, hbqno
);
1707 struct hbq_s
*hbqp
= &phba
->hbqs
[hbqno
];
1709 hbqe
->bde
.addrHigh
= le32_to_cpu(putPaddrHigh(physaddr
));
1710 hbqe
->bde
.addrLow
= le32_to_cpu(putPaddrLow(physaddr
));
1711 hbqe
->bde
.tus
.f
.bdeSize
= hbq_buf
->size
;
1712 hbqe
->bde
.tus
.f
.bdeFlags
= 0;
1713 hbqe
->bde
.tus
.w
= le32_to_cpu(hbqe
->bde
.tus
.w
);
1714 hbqe
->buffer_tag
= le32_to_cpu(hbq_buf
->tag
);
1716 hbqp
->hbqPutIdx
= hbqp
->next_hbqPutIdx
;
1717 writel(hbqp
->hbqPutIdx
, phba
->hbq_put
+ hbqno
);
1719 readl(phba
->hbq_put
+ hbqno
);
1720 list_add_tail(&hbq_buf
->dbuf
.list
, &hbqp
->hbq_buffer_list
);
1727 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
1728 * @phba: Pointer to HBA context object.
1729 * @hbqno: HBQ number.
1730 * @hbq_buf: Pointer to HBQ buffer.
1732 * This function is called with the hbalock held to post an RQE to the SLI4
1733 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
1734 * the hbq_buffer_list and return zero, otherwise it will return an error.
1737 lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba
*phba
, uint32_t hbqno
,
1738 struct hbq_dmabuf
*hbq_buf
)
1741 struct lpfc_rqe hrqe
;
1742 struct lpfc_rqe drqe
;
1744 hrqe
.address_lo
= putPaddrLow(hbq_buf
->hbuf
.phys
);
1745 hrqe
.address_hi
= putPaddrHigh(hbq_buf
->hbuf
.phys
);
1746 drqe
.address_lo
= putPaddrLow(hbq_buf
->dbuf
.phys
);
1747 drqe
.address_hi
= putPaddrHigh(hbq_buf
->dbuf
.phys
);
1748 rc
= lpfc_sli4_rq_put(phba
->sli4_hba
.hdr_rq
, phba
->sli4_hba
.dat_rq
,
1753 list_add_tail(&hbq_buf
->dbuf
.list
, &phba
->hbqs
[hbqno
].hbq_buffer_list
);
1757 /* HBQ for ELS and CT traffic. */
1758 static struct lpfc_hbq_init lpfc_els_hbq
= {
1763 .ring_mask
= (1 << LPFC_ELS_RING
),
1769 /* HBQ for the extra ring if needed */
1770 static struct lpfc_hbq_init lpfc_extra_hbq
= {
1775 .ring_mask
= (1 << LPFC_EXTRA_RING
),
1782 struct lpfc_hbq_init
*lpfc_hbq_defs
[] = {
1788 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
1789 * @phba: Pointer to HBA context object.
1790 * @hbqno: HBQ number.
1791 * @count: Number of HBQ buffers to be posted.
1793 * This function is called with no lock held to post more hbq buffers to the
1794 * given HBQ. The function returns the number of HBQ buffers successfully
1798 lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba
*phba
, uint32_t hbqno
, uint32_t count
)
1800 uint32_t i
, posted
= 0;
1801 unsigned long flags
;
1802 struct hbq_dmabuf
*hbq_buffer
;
1803 LIST_HEAD(hbq_buf_list
);
1804 if (!phba
->hbqs
[hbqno
].hbq_alloc_buffer
)
1807 if ((phba
->hbqs
[hbqno
].buffer_count
+ count
) >
1808 lpfc_hbq_defs
[hbqno
]->entry_count
)
1809 count
= lpfc_hbq_defs
[hbqno
]->entry_count
-
1810 phba
->hbqs
[hbqno
].buffer_count
;
1813 /* Allocate HBQ entries */
1814 for (i
= 0; i
< count
; i
++) {
1815 hbq_buffer
= (phba
->hbqs
[hbqno
].hbq_alloc_buffer
)(phba
);
1818 list_add_tail(&hbq_buffer
->dbuf
.list
, &hbq_buf_list
);
1820 /* Check whether HBQ is still in use */
1821 spin_lock_irqsave(&phba
->hbalock
, flags
);
1822 if (!phba
->hbq_in_use
)
1824 while (!list_empty(&hbq_buf_list
)) {
1825 list_remove_head(&hbq_buf_list
, hbq_buffer
, struct hbq_dmabuf
,
1827 hbq_buffer
->tag
= (phba
->hbqs
[hbqno
].buffer_count
|
1829 if (!lpfc_sli_hbq_to_firmware(phba
, hbqno
, hbq_buffer
)) {
1830 phba
->hbqs
[hbqno
].buffer_count
++;
1833 (phba
->hbqs
[hbqno
].hbq_free_buffer
)(phba
, hbq_buffer
);
1835 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
1838 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
1839 while (!list_empty(&hbq_buf_list
)) {
1840 list_remove_head(&hbq_buf_list
, hbq_buffer
, struct hbq_dmabuf
,
1842 (phba
->hbqs
[hbqno
].hbq_free_buffer
)(phba
, hbq_buffer
);
1848 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
1849 * @phba: Pointer to HBA context object.
1852 * This function posts more buffers to the HBQ. This function
1853 * is called with no lock held. The function returns the number of HBQ entries
1854 * successfully allocated.
1857 lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba
*phba
, uint32_t qno
)
1859 if (phba
->sli_rev
== LPFC_SLI_REV4
)
1862 return lpfc_sli_hbqbuf_fill_hbqs(phba
, qno
,
1863 lpfc_hbq_defs
[qno
]->add_count
);
1867 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
1868 * @phba: Pointer to HBA context object.
1869 * @qno: HBQ queue number.
1871 * This function is called from SLI initialization code path with
1872 * no lock held to post initial HBQ buffers to firmware. The
1873 * function returns the number of HBQ entries successfully allocated.
1876 lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba
*phba
, uint32_t qno
)
1878 if (phba
->sli_rev
== LPFC_SLI_REV4
)
1879 return lpfc_sli_hbqbuf_fill_hbqs(phba
, qno
,
1880 lpfc_hbq_defs
[qno
]->entry_count
);
1882 return lpfc_sli_hbqbuf_fill_hbqs(phba
, qno
,
1883 lpfc_hbq_defs
[qno
]->init_count
);
1887 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
1888 * @phba: Pointer to HBA context object.
1889 * @hbqno: HBQ number.
1891 * This function removes the first hbq buffer on an hbq list and returns a
1892 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
1894 static struct hbq_dmabuf
*
1895 lpfc_sli_hbqbuf_get(struct list_head
*rb_list
)
1897 struct lpfc_dmabuf
*d_buf
;
1899 list_remove_head(rb_list
, d_buf
, struct lpfc_dmabuf
, list
);
1902 return container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
1906 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
1907 * @phba: Pointer to HBA context object.
1908 * @tag: Tag of the hbq buffer.
1910 * This function is called with hbalock held. This function searches
1911 * for the hbq buffer associated with the given tag in the hbq buffer
1912 * list. If it finds the hbq buffer, it returns the hbq_buffer other wise
1915 static struct hbq_dmabuf
*
1916 lpfc_sli_hbqbuf_find(struct lpfc_hba
*phba
, uint32_t tag
)
1918 struct lpfc_dmabuf
*d_buf
;
1919 struct hbq_dmabuf
*hbq_buf
;
1923 if (hbqno
>= LPFC_MAX_HBQS
)
1926 spin_lock_irq(&phba
->hbalock
);
1927 list_for_each_entry(d_buf
, &phba
->hbqs
[hbqno
].hbq_buffer_list
, list
) {
1928 hbq_buf
= container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
1929 if (hbq_buf
->tag
== tag
) {
1930 spin_unlock_irq(&phba
->hbalock
);
1934 spin_unlock_irq(&phba
->hbalock
);
1935 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
| LOG_VPORT
,
1936 "1803 Bad hbq tag. Data: x%x x%x\n",
1937 tag
, phba
->hbqs
[tag
>> 16].buffer_count
);
1942 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
1943 * @phba: Pointer to HBA context object.
1944 * @hbq_buffer: Pointer to HBQ buffer.
1946 * This function is called with hbalock. This function gives back
1947 * the hbq buffer to firmware. If the HBQ does not have space to
1948 * post the buffer, it will free the buffer.
1951 lpfc_sli_free_hbq(struct lpfc_hba
*phba
, struct hbq_dmabuf
*hbq_buffer
)
1956 hbqno
= hbq_buffer
->tag
>> 16;
1957 if (lpfc_sli_hbq_to_firmware(phba
, hbqno
, hbq_buffer
))
1958 (phba
->hbqs
[hbqno
].hbq_free_buffer
)(phba
, hbq_buffer
);
1963 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
1964 * @mbxCommand: mailbox command code.
1966 * This function is called by the mailbox event handler function to verify
1967 * that the completed mailbox command is a legitimate mailbox command. If the
1968 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
1969 * and the mailbox event handler will take the HBA offline.
1972 lpfc_sli_chk_mbx_command(uint8_t mbxCommand
)
1976 switch (mbxCommand
) {
1980 case MBX_WRITE_VPARMS
:
1981 case MBX_RUN_BIU_DIAG
:
1984 case MBX_CONFIG_LINK
:
1985 case MBX_CONFIG_RING
:
1986 case MBX_RESET_RING
:
1987 case MBX_READ_CONFIG
:
1988 case MBX_READ_RCONFIG
:
1989 case MBX_READ_SPARM
:
1990 case MBX_READ_STATUS
:
1994 case MBX_READ_LNK_STAT
:
1996 case MBX_UNREG_LOGIN
:
1998 case MBX_DUMP_MEMORY
:
1999 case MBX_DUMP_CONTEXT
:
2002 case MBX_UPDATE_CFG
:
2004 case MBX_DEL_LD_ENTRY
:
2005 case MBX_RUN_PROGRAM
:
2007 case MBX_SET_VARIABLE
:
2008 case MBX_UNREG_D_ID
:
2009 case MBX_KILL_BOARD
:
2010 case MBX_CONFIG_FARP
:
2013 case MBX_RUN_BIU_DIAG64
:
2014 case MBX_CONFIG_PORT
:
2015 case MBX_READ_SPARM64
:
2016 case MBX_READ_RPI64
:
2017 case MBX_REG_LOGIN64
:
2018 case MBX_READ_TOPOLOGY
:
2021 case MBX_LOAD_EXP_ROM
:
2022 case MBX_ASYNCEVT_ENABLE
:
2026 case MBX_PORT_CAPABILITIES
:
2027 case MBX_PORT_IOV_CONTROL
:
2028 case MBX_SLI4_CONFIG
:
2029 case MBX_SLI4_REQ_FTRS
:
2031 case MBX_UNREG_FCFI
:
2036 case MBX_RESUME_RPI
:
2037 case MBX_READ_EVENT_LOG_STATUS
:
2038 case MBX_READ_EVENT_LOG
:
2039 case MBX_SECURITY_MGMT
:
2051 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
2052 * @phba: Pointer to HBA context object.
2053 * @pmboxq: Pointer to mailbox command.
2055 * This is completion handler function for mailbox commands issued from
2056 * lpfc_sli_issue_mbox_wait function. This function is called by the
2057 * mailbox event handler function with no lock held. This function
2058 * will wake up thread waiting on the wait queue pointed by context1
2062 lpfc_sli_wake_mbox_wait(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmboxq
)
2064 wait_queue_head_t
*pdone_q
;
2065 unsigned long drvr_flag
;
2068 * If pdone_q is empty, the driver thread gave up waiting and
2069 * continued running.
2071 pmboxq
->mbox_flag
|= LPFC_MBX_WAKE
;
2072 spin_lock_irqsave(&phba
->hbalock
, drvr_flag
);
2073 pdone_q
= (wait_queue_head_t
*) pmboxq
->context1
;
2075 wake_up_interruptible(pdone_q
);
2076 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
2082 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
2083 * @phba: Pointer to HBA context object.
2084 * @pmb: Pointer to mailbox object.
2086 * This function is the default mailbox completion handler. It
2087 * frees the memory resources associated with the completed mailbox
2088 * command. If the completed command is a REG_LOGIN mailbox command,
2089 * this function will issue a UREG_LOGIN to re-claim the RPI.
2092 lpfc_sli_def_mbox_cmpl(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
2094 struct lpfc_vport
*vport
= pmb
->vport
;
2095 struct lpfc_dmabuf
*mp
;
2096 struct lpfc_nodelist
*ndlp
;
2097 struct Scsi_Host
*shost
;
2101 mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
2104 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
2109 * If a REG_LOGIN succeeded after node is destroyed or node
2110 * is in re-discovery driver need to cleanup the RPI.
2112 if (!(phba
->pport
->load_flag
& FC_UNLOADING
) &&
2113 pmb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
&&
2114 !pmb
->u
.mb
.mbxStatus
) {
2115 rpi
= pmb
->u
.mb
.un
.varWords
[0];
2116 vpi
= pmb
->u
.mb
.un
.varRegLogin
.vpi
- phba
->vpi_base
;
2117 lpfc_unreg_login(phba
, vpi
, rpi
, pmb
);
2118 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
2119 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
2120 if (rc
!= MBX_NOT_FINISHED
)
2124 if ((pmb
->u
.mb
.mbxCommand
== MBX_REG_VPI
) &&
2125 !(phba
->pport
->load_flag
& FC_UNLOADING
) &&
2126 !pmb
->u
.mb
.mbxStatus
) {
2127 shost
= lpfc_shost_from_vport(vport
);
2128 spin_lock_irq(shost
->host_lock
);
2129 vport
->vpi_state
|= LPFC_VPI_REGISTERED
;
2130 vport
->fc_flag
&= ~FC_VPORT_NEEDS_REG_VPI
;
2131 spin_unlock_irq(shost
->host_lock
);
2134 if (pmb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) {
2135 ndlp
= (struct lpfc_nodelist
*)pmb
->context2
;
2137 pmb
->context2
= NULL
;
2140 /* Check security permission status on INIT_LINK mailbox command */
2141 if ((pmb
->u
.mb
.mbxCommand
== MBX_INIT_LINK
) &&
2142 (pmb
->u
.mb
.mbxStatus
== MBXERR_SEC_NO_PERMISSION
))
2143 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
2144 "2860 SLI authentication is required "
2145 "for INIT_LINK but has not done yet\n");
2147 if (bf_get(lpfc_mqe_command
, &pmb
->u
.mqe
) == MBX_SLI4_CONFIG
)
2148 lpfc_sli4_mbox_cmd_free(phba
, pmb
);
2150 mempool_free(pmb
, phba
->mbox_mem_pool
);
2154 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
2155 * @phba: Pointer to HBA context object.
2157 * This function is called with no lock held. This function processes all
2158 * the completed mailbox commands and gives it to upper layers. The interrupt
2159 * service routine processes mailbox completion interrupt and adds completed
2160 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
2161 * Worker thread call lpfc_sli_handle_mb_event, which will return the
2162 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
2163 * function returns the mailbox commands to the upper layer by calling the
2164 * completion handler function of each mailbox.
2167 lpfc_sli_handle_mb_event(struct lpfc_hba
*phba
)
2174 phba
->sli
.slistat
.mbox_event
++;
2176 /* Get all completed mailboxe buffers into the cmplq */
2177 spin_lock_irq(&phba
->hbalock
);
2178 list_splice_init(&phba
->sli
.mboxq_cmpl
, &cmplq
);
2179 spin_unlock_irq(&phba
->hbalock
);
2181 /* Get a Mailbox buffer to setup mailbox commands for callback */
2183 list_remove_head(&cmplq
, pmb
, LPFC_MBOXQ_t
, list
);
2189 if (pmbox
->mbxCommand
!= MBX_HEARTBEAT
) {
2191 lpfc_debugfs_disc_trc(pmb
->vport
,
2192 LPFC_DISC_TRC_MBOX_VPORT
,
2193 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
2194 (uint32_t)pmbox
->mbxCommand
,
2195 pmbox
->un
.varWords
[0],
2196 pmbox
->un
.varWords
[1]);
2199 lpfc_debugfs_disc_trc(phba
->pport
,
2201 "MBOX cmpl: cmd:x%x mb:x%x x%x",
2202 (uint32_t)pmbox
->mbxCommand
,
2203 pmbox
->un
.varWords
[0],
2204 pmbox
->un
.varWords
[1]);
2209 * It is a fatal error if unknown mbox command completion.
2211 if (lpfc_sli_chk_mbx_command(pmbox
->mbxCommand
) ==
2213 /* Unknown mailbox command compl */
2214 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
2215 "(%d):0323 Unknown Mailbox command "
2217 pmb
->vport
? pmb
->vport
->vpi
: 0,
2219 lpfc_sli4_mbox_opcode_get(phba
, pmb
));
2220 phba
->link_state
= LPFC_HBA_ERROR
;
2221 phba
->work_hs
= HS_FFER3
;
2222 lpfc_handle_eratt(phba
);
2226 if (pmbox
->mbxStatus
) {
2227 phba
->sli
.slistat
.mbox_stat_err
++;
2228 if (pmbox
->mbxStatus
== MBXERR_NO_RESOURCES
) {
2229 /* Mbox cmd cmpl error - RETRYing */
2230 lpfc_printf_log(phba
, KERN_INFO
,
2232 "(%d):0305 Mbox cmd cmpl "
2233 "error - RETRYing Data: x%x "
2234 "(x%x) x%x x%x x%x\n",
2235 pmb
->vport
? pmb
->vport
->vpi
:0,
2237 lpfc_sli4_mbox_opcode_get(phba
,
2240 pmbox
->un
.varWords
[0],
2241 pmb
->vport
->port_state
);
2242 pmbox
->mbxStatus
= 0;
2243 pmbox
->mbxOwner
= OWN_HOST
;
2244 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
2245 if (rc
!= MBX_NOT_FINISHED
)
2250 /* Mailbox cmd <cmd> Cmpl <cmpl> */
2251 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
2252 "(%d):0307 Mailbox cmd x%x (x%x) Cmpl x%p "
2253 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n",
2254 pmb
->vport
? pmb
->vport
->vpi
: 0,
2256 lpfc_sli4_mbox_opcode_get(phba
, pmb
),
2258 *((uint32_t *) pmbox
),
2259 pmbox
->un
.varWords
[0],
2260 pmbox
->un
.varWords
[1],
2261 pmbox
->un
.varWords
[2],
2262 pmbox
->un
.varWords
[3],
2263 pmbox
->un
.varWords
[4],
2264 pmbox
->un
.varWords
[5],
2265 pmbox
->un
.varWords
[6],
2266 pmbox
->un
.varWords
[7]);
2269 pmb
->mbox_cmpl(phba
,pmb
);
2275 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
2276 * @phba: Pointer to HBA context object.
2277 * @pring: Pointer to driver SLI ring object.
2280 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
2281 * is set in the tag the buffer is posted for a particular exchange,
2282 * the function will return the buffer without replacing the buffer.
2283 * If the buffer is for unsolicited ELS or CT traffic, this function
2284 * returns the buffer and also posts another buffer to the firmware.
2286 static struct lpfc_dmabuf
*
2287 lpfc_sli_get_buff(struct lpfc_hba
*phba
,
2288 struct lpfc_sli_ring
*pring
,
2291 struct hbq_dmabuf
*hbq_entry
;
2293 if (tag
& QUE_BUFTAG_BIT
)
2294 return lpfc_sli_ring_taggedbuf_get(phba
, pring
, tag
);
2295 hbq_entry
= lpfc_sli_hbqbuf_find(phba
, tag
);
2298 return &hbq_entry
->dbuf
;
2302 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
2303 * @phba: Pointer to HBA context object.
2304 * @pring: Pointer to driver SLI ring object.
2305 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
2306 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
2307 * @fch_type: the type for the first frame of the sequence.
2309 * This function is called with no lock held. This function uses the r_ctl and
2310 * type of the received sequence to find the correct callback function to call
2311 * to process the sequence.
2314 lpfc_complete_unsol_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
2315 struct lpfc_iocbq
*saveq
, uint32_t fch_r_ctl
,
2320 /* unSolicited Responses */
2321 if (pring
->prt
[0].profile
) {
2322 if (pring
->prt
[0].lpfc_sli_rcv_unsol_event
)
2323 (pring
->prt
[0].lpfc_sli_rcv_unsol_event
) (phba
, pring
,
2327 /* We must search, based on rctl / type
2328 for the right routine */
2329 for (i
= 0; i
< pring
->num_mask
; i
++) {
2330 if ((pring
->prt
[i
].rctl
== fch_r_ctl
) &&
2331 (pring
->prt
[i
].type
== fch_type
)) {
2332 if (pring
->prt
[i
].lpfc_sli_rcv_unsol_event
)
2333 (pring
->prt
[i
].lpfc_sli_rcv_unsol_event
)
2334 (phba
, pring
, saveq
);
2342 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
2343 * @phba: Pointer to HBA context object.
2344 * @pring: Pointer to driver SLI ring object.
2345 * @saveq: Pointer to the unsolicited iocb.
2347 * This function is called with no lock held by the ring event handler
2348 * when there is an unsolicited iocb posted to the response ring by the
2349 * firmware. This function gets the buffer associated with the iocbs
2350 * and calls the event handler for the ring. This function handles both
2351 * qring buffers and hbq buffers.
2352 * When the function returns 1 the caller can free the iocb object otherwise
2353 * upper layer functions will free the iocb objects.
2356 lpfc_sli_process_unsol_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
2357 struct lpfc_iocbq
*saveq
)
2361 uint32_t Rctl
, Type
;
2363 struct lpfc_iocbq
*iocbq
;
2364 struct lpfc_dmabuf
*dmzbuf
;
2367 irsp
= &(saveq
->iocb
);
2369 if (irsp
->ulpCommand
== CMD_ASYNC_STATUS
) {
2370 if (pring
->lpfc_sli_rcv_async_status
)
2371 pring
->lpfc_sli_rcv_async_status(phba
, pring
, saveq
);
2373 lpfc_printf_log(phba
,
2376 "0316 Ring %d handler: unexpected "
2377 "ASYNC_STATUS iocb received evt_code "
2380 irsp
->un
.asyncstat
.evt_code
);
2384 if ((irsp
->ulpCommand
== CMD_IOCB_RET_XRI64_CX
) &&
2385 (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
)) {
2386 if (irsp
->ulpBdeCount
> 0) {
2387 dmzbuf
= lpfc_sli_get_buff(phba
, pring
,
2388 irsp
->un
.ulpWord
[3]);
2389 lpfc_in_buf_free(phba
, dmzbuf
);
2392 if (irsp
->ulpBdeCount
> 1) {
2393 dmzbuf
= lpfc_sli_get_buff(phba
, pring
,
2394 irsp
->unsli3
.sli3Words
[3]);
2395 lpfc_in_buf_free(phba
, dmzbuf
);
2398 if (irsp
->ulpBdeCount
> 2) {
2399 dmzbuf
= lpfc_sli_get_buff(phba
, pring
,
2400 irsp
->unsli3
.sli3Words
[7]);
2401 lpfc_in_buf_free(phba
, dmzbuf
);
2407 if (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) {
2408 if (irsp
->ulpBdeCount
!= 0) {
2409 saveq
->context2
= lpfc_sli_get_buff(phba
, pring
,
2410 irsp
->un
.ulpWord
[3]);
2411 if (!saveq
->context2
)
2412 lpfc_printf_log(phba
,
2415 "0341 Ring %d Cannot find buffer for "
2416 "an unsolicited iocb. tag 0x%x\n",
2418 irsp
->un
.ulpWord
[3]);
2420 if (irsp
->ulpBdeCount
== 2) {
2421 saveq
->context3
= lpfc_sli_get_buff(phba
, pring
,
2422 irsp
->unsli3
.sli3Words
[7]);
2423 if (!saveq
->context3
)
2424 lpfc_printf_log(phba
,
2427 "0342 Ring %d Cannot find buffer for an"
2428 " unsolicited iocb. tag 0x%x\n",
2430 irsp
->unsli3
.sli3Words
[7]);
2432 list_for_each_entry(iocbq
, &saveq
->list
, list
) {
2433 irsp
= &(iocbq
->iocb
);
2434 if (irsp
->ulpBdeCount
!= 0) {
2435 iocbq
->context2
= lpfc_sli_get_buff(phba
, pring
,
2436 irsp
->un
.ulpWord
[3]);
2437 if (!iocbq
->context2
)
2438 lpfc_printf_log(phba
,
2441 "0343 Ring %d Cannot find "
2442 "buffer for an unsolicited iocb"
2443 ". tag 0x%x\n", pring
->ringno
,
2444 irsp
->un
.ulpWord
[3]);
2446 if (irsp
->ulpBdeCount
== 2) {
2447 iocbq
->context3
= lpfc_sli_get_buff(phba
, pring
,
2448 irsp
->unsli3
.sli3Words
[7]);
2449 if (!iocbq
->context3
)
2450 lpfc_printf_log(phba
,
2453 "0344 Ring %d Cannot find "
2454 "buffer for an unsolicited "
2457 irsp
->unsli3
.sli3Words
[7]);
2461 if (irsp
->ulpBdeCount
!= 0 &&
2462 (irsp
->ulpCommand
== CMD_IOCB_RCV_CONT64_CX
||
2463 irsp
->ulpStatus
== IOSTAT_INTERMED_RSP
)) {
2466 /* search continue save q for same XRI */
2467 list_for_each_entry(iocbq
, &pring
->iocb_continue_saveq
, clist
) {
2468 if (iocbq
->iocb
.ulpContext
== saveq
->iocb
.ulpContext
) {
2469 list_add_tail(&saveq
->list
, &iocbq
->list
);
2475 list_add_tail(&saveq
->clist
,
2476 &pring
->iocb_continue_saveq
);
2477 if (saveq
->iocb
.ulpStatus
!= IOSTAT_INTERMED_RSP
) {
2478 list_del_init(&iocbq
->clist
);
2480 irsp
= &(saveq
->iocb
);
2484 if ((irsp
->ulpCommand
== CMD_RCV_ELS_REQ64_CX
) ||
2485 (irsp
->ulpCommand
== CMD_RCV_ELS_REQ_CX
) ||
2486 (irsp
->ulpCommand
== CMD_IOCB_RCV_ELS64_CX
)) {
2487 Rctl
= FC_RCTL_ELS_REQ
;
2490 w5p
= (WORD5
*)&(saveq
->iocb
.un
.ulpWord
[5]);
2491 Rctl
= w5p
->hcsw
.Rctl
;
2492 Type
= w5p
->hcsw
.Type
;
2494 /* Firmware Workaround */
2495 if ((Rctl
== 0) && (pring
->ringno
== LPFC_ELS_RING
) &&
2496 (irsp
->ulpCommand
== CMD_RCV_SEQUENCE64_CX
||
2497 irsp
->ulpCommand
== CMD_IOCB_RCV_SEQ64_CX
)) {
2498 Rctl
= FC_RCTL_ELS_REQ
;
2500 w5p
->hcsw
.Rctl
= Rctl
;
2501 w5p
->hcsw
.Type
= Type
;
2505 if (!lpfc_complete_unsol_iocb(phba
, pring
, saveq
, Rctl
, Type
))
2506 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
2507 "0313 Ring %d handler: unexpected Rctl x%x "
2508 "Type x%x received\n",
2509 pring
->ringno
, Rctl
, Type
);
2515 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
2516 * @phba: Pointer to HBA context object.
2517 * @pring: Pointer to driver SLI ring object.
2518 * @prspiocb: Pointer to response iocb object.
2520 * This function looks up the iocb_lookup table to get the command iocb
2521 * corresponding to the given response iocb using the iotag of the
2522 * response iocb. This function is called with the hbalock held.
2523 * This function returns the command iocb object if it finds the command
2524 * iocb else returns NULL.
2526 static struct lpfc_iocbq
*
2527 lpfc_sli_iocbq_lookup(struct lpfc_hba
*phba
,
2528 struct lpfc_sli_ring
*pring
,
2529 struct lpfc_iocbq
*prspiocb
)
2531 struct lpfc_iocbq
*cmd_iocb
= NULL
;
2534 iotag
= prspiocb
->iocb
.ulpIoTag
;
2536 if (iotag
!= 0 && iotag
<= phba
->sli
.last_iotag
) {
2537 cmd_iocb
= phba
->sli
.iocbq_lookup
[iotag
];
2538 list_del_init(&cmd_iocb
->list
);
2539 if (cmd_iocb
->iocb_flag
& LPFC_IO_ON_Q
) {
2540 pring
->txcmplq_cnt
--;
2541 cmd_iocb
->iocb_flag
&= ~LPFC_IO_ON_Q
;
2546 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2547 "0317 iotag x%x is out off "
2548 "range: max iotag x%x wd0 x%x\n",
2549 iotag
, phba
->sli
.last_iotag
,
2550 *(((uint32_t *) &prspiocb
->iocb
) + 7));
2555 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2556 * @phba: Pointer to HBA context object.
2557 * @pring: Pointer to driver SLI ring object.
2560 * This function looks up the iocb_lookup table to get the command iocb
2561 * corresponding to the given iotag. This function is called with the
2563 * This function returns the command iocb object if it finds the command
2564 * iocb else returns NULL.
2566 static struct lpfc_iocbq
*
2567 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba
*phba
,
2568 struct lpfc_sli_ring
*pring
, uint16_t iotag
)
2570 struct lpfc_iocbq
*cmd_iocb
;
2572 if (iotag
!= 0 && iotag
<= phba
->sli
.last_iotag
) {
2573 cmd_iocb
= phba
->sli
.iocbq_lookup
[iotag
];
2574 list_del_init(&cmd_iocb
->list
);
2575 if (cmd_iocb
->iocb_flag
& LPFC_IO_ON_Q
) {
2576 cmd_iocb
->iocb_flag
&= ~LPFC_IO_ON_Q
;
2577 pring
->txcmplq_cnt
--;
2582 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2583 "0372 iotag x%x is out off range: max iotag (x%x)\n",
2584 iotag
, phba
->sli
.last_iotag
);
2589 * lpfc_sli_process_sol_iocb - process solicited iocb completion
2590 * @phba: Pointer to HBA context object.
2591 * @pring: Pointer to driver SLI ring object.
2592 * @saveq: Pointer to the response iocb to be processed.
2594 * This function is called by the ring event handler for non-fcp
2595 * rings when there is a new response iocb in the response ring.
2596 * The caller is not required to hold any locks. This function
2597 * gets the command iocb associated with the response iocb and
2598 * calls the completion handler for the command iocb. If there
2599 * is no completion handler, the function will free the resources
2600 * associated with command iocb. If the response iocb is for
2601 * an already aborted command iocb, the status of the completion
2602 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
2603 * This function always returns 1.
2606 lpfc_sli_process_sol_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
2607 struct lpfc_iocbq
*saveq
)
2609 struct lpfc_iocbq
*cmdiocbp
;
2611 unsigned long iflag
;
2613 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
2614 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2615 cmdiocbp
= lpfc_sli_iocbq_lookup(phba
, pring
, saveq
);
2616 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2619 if (cmdiocbp
->iocb_cmpl
) {
2621 * If an ELS command failed send an event to mgmt
2624 if (saveq
->iocb
.ulpStatus
&&
2625 (pring
->ringno
== LPFC_ELS_RING
) &&
2626 (cmdiocbp
->iocb
.ulpCommand
==
2627 CMD_ELS_REQUEST64_CR
))
2628 lpfc_send_els_failure_event(phba
,
2632 * Post all ELS completions to the worker thread.
2633 * All other are passed to the completion callback.
2635 if (pring
->ringno
== LPFC_ELS_RING
) {
2636 if ((phba
->sli_rev
< LPFC_SLI_REV4
) &&
2637 (cmdiocbp
->iocb_flag
&
2638 LPFC_DRIVER_ABORTED
)) {
2639 spin_lock_irqsave(&phba
->hbalock
,
2641 cmdiocbp
->iocb_flag
&=
2642 ~LPFC_DRIVER_ABORTED
;
2643 spin_unlock_irqrestore(&phba
->hbalock
,
2645 saveq
->iocb
.ulpStatus
=
2646 IOSTAT_LOCAL_REJECT
;
2647 saveq
->iocb
.un
.ulpWord
[4] =
2650 /* Firmware could still be in progress
2651 * of DMAing payload, so don't free data
2652 * buffer till after a hbeat.
2654 spin_lock_irqsave(&phba
->hbalock
,
2656 saveq
->iocb_flag
|= LPFC_DELAY_MEM_FREE
;
2657 spin_unlock_irqrestore(&phba
->hbalock
,
2660 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
2661 if (saveq
->iocb_flag
&
2662 LPFC_EXCHANGE_BUSY
) {
2663 /* Set cmdiocb flag for the
2664 * exchange busy so sgl (xri)
2665 * will not be released until
2666 * the abort xri is received
2670 &phba
->hbalock
, iflag
);
2671 cmdiocbp
->iocb_flag
|=
2673 spin_unlock_irqrestore(
2674 &phba
->hbalock
, iflag
);
2676 if (cmdiocbp
->iocb_flag
&
2677 LPFC_DRIVER_ABORTED
) {
2679 * Clear LPFC_DRIVER_ABORTED
2680 * bit in case it was driver
2684 &phba
->hbalock
, iflag
);
2685 cmdiocbp
->iocb_flag
&=
2686 ~LPFC_DRIVER_ABORTED
;
2687 spin_unlock_irqrestore(
2688 &phba
->hbalock
, iflag
);
2689 cmdiocbp
->iocb
.ulpStatus
=
2690 IOSTAT_LOCAL_REJECT
;
2691 cmdiocbp
->iocb
.un
.ulpWord
[4] =
2692 IOERR_ABORT_REQUESTED
;
2694 * For SLI4, irsiocb contains
2695 * NO_XRI in sli_xritag, it
2696 * shall not affect releasing
2697 * sgl (xri) process.
2699 saveq
->iocb
.ulpStatus
=
2700 IOSTAT_LOCAL_REJECT
;
2701 saveq
->iocb
.un
.ulpWord
[4] =
2704 &phba
->hbalock
, iflag
);
2706 LPFC_DELAY_MEM_FREE
;
2707 spin_unlock_irqrestore(
2708 &phba
->hbalock
, iflag
);
2712 (cmdiocbp
->iocb_cmpl
) (phba
, cmdiocbp
, saveq
);
2714 lpfc_sli_release_iocbq(phba
, cmdiocbp
);
2717 * Unknown initiating command based on the response iotag.
2718 * This could be the case on the ELS ring because of
2721 if (pring
->ringno
!= LPFC_ELS_RING
) {
2723 * Ring <ringno> handler: unexpected completion IoTag
2726 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
2727 "0322 Ring %d handler: "
2728 "unexpected completion IoTag x%x "
2729 "Data: x%x x%x x%x x%x\n",
2731 saveq
->iocb
.ulpIoTag
,
2732 saveq
->iocb
.ulpStatus
,
2733 saveq
->iocb
.un
.ulpWord
[4],
2734 saveq
->iocb
.ulpCommand
,
2735 saveq
->iocb
.ulpContext
);
2743 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
2744 * @phba: Pointer to HBA context object.
2745 * @pring: Pointer to driver SLI ring object.
2747 * This function is called from the iocb ring event handlers when
2748 * put pointer is ahead of the get pointer for a ring. This function signal
2749 * an error attention condition to the worker thread and the worker
2750 * thread will transition the HBA to offline state.
2753 lpfc_sli_rsp_pointers_error(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
2755 struct lpfc_pgp
*pgp
= &phba
->port_gp
[pring
->ringno
];
2757 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
2758 * rsp ring <portRspMax>
2760 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2761 "0312 Ring %d handler: portRspPut %d "
2762 "is bigger than rsp ring %d\n",
2763 pring
->ringno
, le32_to_cpu(pgp
->rspPutInx
),
2766 phba
->link_state
= LPFC_HBA_ERROR
;
2769 * All error attention handlers are posted to
2772 phba
->work_ha
|= HA_ERATT
;
2773 phba
->work_hs
= HS_FFER3
;
2775 lpfc_worker_wake_up(phba
);
2781 * lpfc_poll_eratt - Error attention polling timer timeout handler
2782 * @ptr: Pointer to address of HBA context object.
2784 * This function is invoked by the Error Attention polling timer when the
2785 * timer times out. It will check the SLI Error Attention register for
2786 * possible attention events. If so, it will post an Error Attention event
2787 * and wake up worker thread to process it. Otherwise, it will set up the
2788 * Error Attention polling timer for the next poll.
2790 void lpfc_poll_eratt(unsigned long ptr
)
2792 struct lpfc_hba
*phba
;
2795 phba
= (struct lpfc_hba
*)ptr
;
2797 /* Check chip HA register for error event */
2798 eratt
= lpfc_sli_check_eratt(phba
);
2801 /* Tell the worker thread there is work to do */
2802 lpfc_worker_wake_up(phba
);
2804 /* Restart the timer for next eratt poll */
2805 mod_timer(&phba
->eratt_poll
, jiffies
+
2806 HZ
* LPFC_ERATT_POLL_INTERVAL
);
2812 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
2813 * @phba: Pointer to HBA context object.
2814 * @pring: Pointer to driver SLI ring object.
2815 * @mask: Host attention register mask for this ring.
2817 * This function is called from the interrupt context when there is a ring
2818 * event for the fcp ring. The caller does not hold any lock.
2819 * The function processes each response iocb in the response ring until it
2820 * finds an iocb with LE bit set and chains all the iocbs upto the iocb with
2821 * LE bit set. The function will call the completion handler of the command iocb
2822 * if the response iocb indicates a completion for a command iocb or it is
2823 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
2824 * function if this is an unsolicited iocb.
2825 * This routine presumes LPFC_FCP_RING handling and doesn't bother
2826 * to check it explicitly.
2829 lpfc_sli_handle_fast_ring_event(struct lpfc_hba
*phba
,
2830 struct lpfc_sli_ring
*pring
, uint32_t mask
)
2832 struct lpfc_pgp
*pgp
= &phba
->port_gp
[pring
->ringno
];
2833 IOCB_t
*irsp
= NULL
;
2834 IOCB_t
*entry
= NULL
;
2835 struct lpfc_iocbq
*cmdiocbq
= NULL
;
2836 struct lpfc_iocbq rspiocbq
;
2838 uint32_t portRspPut
, portRspMax
;
2840 lpfc_iocb_type type
;
2841 unsigned long iflag
;
2842 uint32_t rsp_cmpl
= 0;
2844 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2845 pring
->stats
.iocb_event
++;
2848 * The next available response entry should never exceed the maximum
2849 * entries. If it does, treat it as an adapter hardware error.
2851 portRspMax
= pring
->numRiocb
;
2852 portRspPut
= le32_to_cpu(pgp
->rspPutInx
);
2853 if (unlikely(portRspPut
>= portRspMax
)) {
2854 lpfc_sli_rsp_pointers_error(phba
, pring
);
2855 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2858 if (phba
->fcp_ring_in_use
) {
2859 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2862 phba
->fcp_ring_in_use
= 1;
2865 while (pring
->rspidx
!= portRspPut
) {
2867 * Fetch an entry off the ring and copy it into a local data
2868 * structure. The copy involves a byte-swap since the
2869 * network byte order and pci byte orders are different.
2871 entry
= lpfc_resp_iocb(phba
, pring
);
2872 phba
->last_completion_time
= jiffies
;
2874 if (++pring
->rspidx
>= portRspMax
)
2877 lpfc_sli_pcimem_bcopy((uint32_t *) entry
,
2878 (uint32_t *) &rspiocbq
.iocb
,
2879 phba
->iocb_rsp_size
);
2880 INIT_LIST_HEAD(&(rspiocbq
.list
));
2881 irsp
= &rspiocbq
.iocb
;
2883 type
= lpfc_sli_iocb_cmd_type(irsp
->ulpCommand
& CMD_IOCB_MASK
);
2884 pring
->stats
.iocb_rsp
++;
2887 if (unlikely(irsp
->ulpStatus
)) {
2889 * If resource errors reported from HBA, reduce
2890 * queuedepths of the SCSI device.
2892 if ((irsp
->ulpStatus
== IOSTAT_LOCAL_REJECT
) &&
2893 (irsp
->un
.ulpWord
[4] == IOERR_NO_RESOURCES
)) {
2894 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2895 phba
->lpfc_rampdown_queue_depth(phba
);
2896 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2899 /* Rsp ring <ringno> error: IOCB */
2900 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
2901 "0336 Rsp Ring %d error: IOCB Data: "
2902 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
2904 irsp
->un
.ulpWord
[0],
2905 irsp
->un
.ulpWord
[1],
2906 irsp
->un
.ulpWord
[2],
2907 irsp
->un
.ulpWord
[3],
2908 irsp
->un
.ulpWord
[4],
2909 irsp
->un
.ulpWord
[5],
2910 *(uint32_t *)&irsp
->un1
,
2911 *((uint32_t *)&irsp
->un1
+ 1));
2915 case LPFC_ABORT_IOCB
:
2918 * Idle exchange closed via ABTS from port. No iocb
2919 * resources need to be recovered.
2921 if (unlikely(irsp
->ulpCommand
== CMD_XRI_ABORTED_CX
)) {
2922 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
2923 "0333 IOCB cmd 0x%x"
2924 " processed. Skipping"
2930 cmdiocbq
= lpfc_sli_iocbq_lookup(phba
, pring
,
2932 if (unlikely(!cmdiocbq
))
2934 if (cmdiocbq
->iocb_flag
& LPFC_DRIVER_ABORTED
)
2935 cmdiocbq
->iocb_flag
&= ~LPFC_DRIVER_ABORTED
;
2936 if (cmdiocbq
->iocb_cmpl
) {
2937 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2938 (cmdiocbq
->iocb_cmpl
)(phba
, cmdiocbq
,
2940 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2943 case LPFC_UNSOL_IOCB
:
2944 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2945 lpfc_sli_process_unsol_iocb(phba
, pring
, &rspiocbq
);
2946 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2949 if (irsp
->ulpCommand
== CMD_ADAPTER_MSG
) {
2950 char adaptermsg
[LPFC_MAX_ADPTMSG
];
2951 memset(adaptermsg
, 0, LPFC_MAX_ADPTMSG
);
2952 memcpy(&adaptermsg
[0], (uint8_t *) irsp
,
2954 dev_warn(&((phba
->pcidev
)->dev
),
2956 phba
->brd_no
, adaptermsg
);
2958 /* Unknown IOCB command */
2959 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2960 "0334 Unknown IOCB command "
2961 "Data: x%x, x%x x%x x%x x%x\n",
2962 type
, irsp
->ulpCommand
,
2971 * The response IOCB has been processed. Update the ring
2972 * pointer in SLIM. If the port response put pointer has not
2973 * been updated, sync the pgp->rspPutInx and fetch the new port
2974 * response put pointer.
2976 writel(pring
->rspidx
, &phba
->host_gp
[pring
->ringno
].rspGetInx
);
2978 if (pring
->rspidx
== portRspPut
)
2979 portRspPut
= le32_to_cpu(pgp
->rspPutInx
);
2982 if ((rsp_cmpl
> 0) && (mask
& HA_R0RE_REQ
)) {
2983 pring
->stats
.iocb_rsp_full
++;
2984 status
= ((CA_R0ATT
| CA_R0RE_RSP
) << (pring
->ringno
* 4));
2985 writel(status
, phba
->CAregaddr
);
2986 readl(phba
->CAregaddr
);
2988 if ((mask
& HA_R0CE_RSP
) && (pring
->flag
& LPFC_CALL_RING_AVAILABLE
)) {
2989 pring
->flag
&= ~LPFC_CALL_RING_AVAILABLE
;
2990 pring
->stats
.iocb_cmd_empty
++;
2992 /* Force update of the local copy of cmdGetInx */
2993 pring
->local_getidx
= le32_to_cpu(pgp
->cmdGetInx
);
2994 lpfc_sli_resume_iocb(phba
, pring
);
2996 if ((pring
->lpfc_sli_cmd_available
))
2997 (pring
->lpfc_sli_cmd_available
) (phba
, pring
);
3001 phba
->fcp_ring_in_use
= 0;
3002 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3007 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
3008 * @phba: Pointer to HBA context object.
3009 * @pring: Pointer to driver SLI ring object.
3010 * @rspiocbp: Pointer to driver response IOCB object.
3012 * This function is called from the worker thread when there is a slow-path
3013 * response IOCB to process. This function chains all the response iocbs until
3014 * seeing the iocb with the LE bit set. The function will call
3015 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
3016 * completion of a command iocb. The function will call the
3017 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
3018 * The function frees the resources or calls the completion handler if this
3019 * iocb is an abort completion. The function returns NULL when the response
3020 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
3021 * this function shall chain the iocb on to the iocb_continueq and return the
3022 * response iocb passed in.
3024 static struct lpfc_iocbq
*
3025 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
3026 struct lpfc_iocbq
*rspiocbp
)
3028 struct lpfc_iocbq
*saveq
;
3029 struct lpfc_iocbq
*cmdiocbp
;
3030 struct lpfc_iocbq
*next_iocb
;
3031 IOCB_t
*irsp
= NULL
;
3032 uint32_t free_saveq
;
3033 uint8_t iocb_cmd_type
;
3034 lpfc_iocb_type type
;
3035 unsigned long iflag
;
3038 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3039 /* First add the response iocb to the countinueq list */
3040 list_add_tail(&rspiocbp
->list
, &(pring
->iocb_continueq
));
3041 pring
->iocb_continueq_cnt
++;
3043 /* Now, determine whetehr the list is completed for processing */
3044 irsp
= &rspiocbp
->iocb
;
3047 * By default, the driver expects to free all resources
3048 * associated with this iocb completion.
3051 saveq
= list_get_first(&pring
->iocb_continueq
,
3052 struct lpfc_iocbq
, list
);
3053 irsp
= &(saveq
->iocb
);
3054 list_del_init(&pring
->iocb_continueq
);
3055 pring
->iocb_continueq_cnt
= 0;
3057 pring
->stats
.iocb_rsp
++;
3060 * If resource errors reported from HBA, reduce
3061 * queuedepths of the SCSI device.
3063 if ((irsp
->ulpStatus
== IOSTAT_LOCAL_REJECT
) &&
3064 (irsp
->un
.ulpWord
[4] == IOERR_NO_RESOURCES
)) {
3065 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3066 phba
->lpfc_rampdown_queue_depth(phba
);
3067 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3070 if (irsp
->ulpStatus
) {
3071 /* Rsp ring <ringno> error: IOCB */
3072 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
3073 "0328 Rsp Ring %d error: "
3078 "x%x x%x x%x x%x\n",
3080 irsp
->un
.ulpWord
[0],
3081 irsp
->un
.ulpWord
[1],
3082 irsp
->un
.ulpWord
[2],
3083 irsp
->un
.ulpWord
[3],
3084 irsp
->un
.ulpWord
[4],
3085 irsp
->un
.ulpWord
[5],
3086 *(((uint32_t *) irsp
) + 6),
3087 *(((uint32_t *) irsp
) + 7),
3088 *(((uint32_t *) irsp
) + 8),
3089 *(((uint32_t *) irsp
) + 9),
3090 *(((uint32_t *) irsp
) + 10),
3091 *(((uint32_t *) irsp
) + 11),
3092 *(((uint32_t *) irsp
) + 12),
3093 *(((uint32_t *) irsp
) + 13),
3094 *(((uint32_t *) irsp
) + 14),
3095 *(((uint32_t *) irsp
) + 15));
3099 * Fetch the IOCB command type and call the correct completion
3100 * routine. Solicited and Unsolicited IOCBs on the ELS ring
3101 * get freed back to the lpfc_iocb_list by the discovery
3104 iocb_cmd_type
= irsp
->ulpCommand
& CMD_IOCB_MASK
;
3105 type
= lpfc_sli_iocb_cmd_type(iocb_cmd_type
);
3108 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3109 rc
= lpfc_sli_process_sol_iocb(phba
, pring
, saveq
);
3110 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3113 case LPFC_UNSOL_IOCB
:
3114 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3115 rc
= lpfc_sli_process_unsol_iocb(phba
, pring
, saveq
);
3116 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3121 case LPFC_ABORT_IOCB
:
3123 if (irsp
->ulpCommand
!= CMD_XRI_ABORTED_CX
)
3124 cmdiocbp
= lpfc_sli_iocbq_lookup(phba
, pring
,
3127 /* Call the specified completion routine */
3128 if (cmdiocbp
->iocb_cmpl
) {
3129 spin_unlock_irqrestore(&phba
->hbalock
,
3131 (cmdiocbp
->iocb_cmpl
)(phba
, cmdiocbp
,
3133 spin_lock_irqsave(&phba
->hbalock
,
3136 __lpfc_sli_release_iocbq(phba
,
3141 case LPFC_UNKNOWN_IOCB
:
3142 if (irsp
->ulpCommand
== CMD_ADAPTER_MSG
) {
3143 char adaptermsg
[LPFC_MAX_ADPTMSG
];
3144 memset(adaptermsg
, 0, LPFC_MAX_ADPTMSG
);
3145 memcpy(&adaptermsg
[0], (uint8_t *)irsp
,
3147 dev_warn(&((phba
->pcidev
)->dev
),
3149 phba
->brd_no
, adaptermsg
);
3151 /* Unknown IOCB command */
3152 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3153 "0335 Unknown IOCB "
3154 "command Data: x%x "
3165 list_for_each_entry_safe(rspiocbp
, next_iocb
,
3166 &saveq
->list
, list
) {
3167 list_del(&rspiocbp
->list
);
3168 __lpfc_sli_release_iocbq(phba
, rspiocbp
);
3170 __lpfc_sli_release_iocbq(phba
, saveq
);
3174 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3179 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
3180 * @phba: Pointer to HBA context object.
3181 * @pring: Pointer to driver SLI ring object.
3182 * @mask: Host attention register mask for this ring.
3184 * This routine wraps the actual slow_ring event process routine from the
3185 * API jump table function pointer from the lpfc_hba struct.
3188 lpfc_sli_handle_slow_ring_event(struct lpfc_hba
*phba
,
3189 struct lpfc_sli_ring
*pring
, uint32_t mask
)
3191 phba
->lpfc_sli_handle_slow_ring_event(phba
, pring
, mask
);
3195 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
3196 * @phba: Pointer to HBA context object.
3197 * @pring: Pointer to driver SLI ring object.
3198 * @mask: Host attention register mask for this ring.
3200 * This function is called from the worker thread when there is a ring event
3201 * for non-fcp rings. The caller does not hold any lock. The function will
3202 * remove each response iocb in the response ring and calls the handle
3203 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3206 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba
*phba
,
3207 struct lpfc_sli_ring
*pring
, uint32_t mask
)
3209 struct lpfc_pgp
*pgp
;
3211 IOCB_t
*irsp
= NULL
;
3212 struct lpfc_iocbq
*rspiocbp
= NULL
;
3213 uint32_t portRspPut
, portRspMax
;
3214 unsigned long iflag
;
3217 pgp
= &phba
->port_gp
[pring
->ringno
];
3218 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3219 pring
->stats
.iocb_event
++;
3222 * The next available response entry should never exceed the maximum
3223 * entries. If it does, treat it as an adapter hardware error.
3225 portRspMax
= pring
->numRiocb
;
3226 portRspPut
= le32_to_cpu(pgp
->rspPutInx
);
3227 if (portRspPut
>= portRspMax
) {
3229 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
3230 * rsp ring <portRspMax>
3232 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3233 "0303 Ring %d handler: portRspPut %d "
3234 "is bigger than rsp ring %d\n",
3235 pring
->ringno
, portRspPut
, portRspMax
);
3237 phba
->link_state
= LPFC_HBA_ERROR
;
3238 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3240 phba
->work_hs
= HS_FFER3
;
3241 lpfc_handle_eratt(phba
);
3247 while (pring
->rspidx
!= portRspPut
) {
3249 * Build a completion list and call the appropriate handler.
3250 * The process is to get the next available response iocb, get
3251 * a free iocb from the list, copy the response data into the
3252 * free iocb, insert to the continuation list, and update the
3253 * next response index to slim. This process makes response
3254 * iocb's in the ring available to DMA as fast as possible but
3255 * pays a penalty for a copy operation. Since the iocb is
3256 * only 32 bytes, this penalty is considered small relative to
3257 * the PCI reads for register values and a slim write. When
3258 * the ulpLe field is set, the entire Command has been
3261 entry
= lpfc_resp_iocb(phba
, pring
);
3263 phba
->last_completion_time
= jiffies
;
3264 rspiocbp
= __lpfc_sli_get_iocbq(phba
);
3265 if (rspiocbp
== NULL
) {
3266 printk(KERN_ERR
"%s: out of buffers! Failing "
3267 "completion.\n", __func__
);
3271 lpfc_sli_pcimem_bcopy(entry
, &rspiocbp
->iocb
,
3272 phba
->iocb_rsp_size
);
3273 irsp
= &rspiocbp
->iocb
;
3275 if (++pring
->rspidx
>= portRspMax
)
3278 if (pring
->ringno
== LPFC_ELS_RING
) {
3279 lpfc_debugfs_slow_ring_trc(phba
,
3280 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
3281 *(((uint32_t *) irsp
) + 4),
3282 *(((uint32_t *) irsp
) + 6),
3283 *(((uint32_t *) irsp
) + 7));
3286 writel(pring
->rspidx
, &phba
->host_gp
[pring
->ringno
].rspGetInx
);
3288 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3289 /* Handle the response IOCB */
3290 rspiocbp
= lpfc_sli_sp_handle_rspiocb(phba
, pring
, rspiocbp
);
3291 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3294 * If the port response put pointer has not been updated, sync
3295 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
3296 * response put pointer.
3298 if (pring
->rspidx
== portRspPut
) {
3299 portRspPut
= le32_to_cpu(pgp
->rspPutInx
);
3301 } /* while (pring->rspidx != portRspPut) */
3303 if ((rspiocbp
!= NULL
) && (mask
& HA_R0RE_REQ
)) {
3304 /* At least one response entry has been freed */
3305 pring
->stats
.iocb_rsp_full
++;
3306 /* SET RxRE_RSP in Chip Att register */
3307 status
= ((CA_R0ATT
| CA_R0RE_RSP
) << (pring
->ringno
* 4));
3308 writel(status
, phba
->CAregaddr
);
3309 readl(phba
->CAregaddr
); /* flush */
3311 if ((mask
& HA_R0CE_RSP
) && (pring
->flag
& LPFC_CALL_RING_AVAILABLE
)) {
3312 pring
->flag
&= ~LPFC_CALL_RING_AVAILABLE
;
3313 pring
->stats
.iocb_cmd_empty
++;
3315 /* Force update of the local copy of cmdGetInx */
3316 pring
->local_getidx
= le32_to_cpu(pgp
->cmdGetInx
);
3317 lpfc_sli_resume_iocb(phba
, pring
);
3319 if ((pring
->lpfc_sli_cmd_available
))
3320 (pring
->lpfc_sli_cmd_available
) (phba
, pring
);
3324 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3329 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
3330 * @phba: Pointer to HBA context object.
3331 * @pring: Pointer to driver SLI ring object.
3332 * @mask: Host attention register mask for this ring.
3334 * This function is called from the worker thread when there is a pending
3335 * ELS response iocb on the driver internal slow-path response iocb worker
3336 * queue. The caller does not hold any lock. The function will remove each
3337 * response iocb from the response worker queue and calls the handle
3338 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3341 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba
*phba
,
3342 struct lpfc_sli_ring
*pring
, uint32_t mask
)
3344 struct lpfc_iocbq
*irspiocbq
;
3345 struct hbq_dmabuf
*dmabuf
;
3346 struct lpfc_cq_event
*cq_event
;
3347 unsigned long iflag
;
3349 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3350 phba
->hba_flag
&= ~HBA_SP_QUEUE_EVT
;
3351 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3352 while (!list_empty(&phba
->sli4_hba
.sp_queue_event
)) {
3353 /* Get the response iocb from the head of work queue */
3354 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3355 list_remove_head(&phba
->sli4_hba
.sp_queue_event
,
3356 cq_event
, struct lpfc_cq_event
, list
);
3357 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3359 switch (bf_get(lpfc_wcqe_c_code
, &cq_event
->cqe
.wcqe_cmpl
)) {
3360 case CQE_CODE_COMPL_WQE
:
3361 irspiocbq
= container_of(cq_event
, struct lpfc_iocbq
,
3363 /* Translate ELS WCQE to response IOCBQ */
3364 irspiocbq
= lpfc_sli4_els_wcqe_to_rspiocbq(phba
,
3367 lpfc_sli_sp_handle_rspiocb(phba
, pring
,
3370 case CQE_CODE_RECEIVE
:
3371 dmabuf
= container_of(cq_event
, struct hbq_dmabuf
,
3373 lpfc_sli4_handle_received_buffer(phba
, dmabuf
);
3382 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
3383 * @phba: Pointer to HBA context object.
3384 * @pring: Pointer to driver SLI ring object.
3386 * This function aborts all iocbs in the given ring and frees all the iocb
3387 * objects in txq. This function issues an abort iocb for all the iocb commands
3388 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3389 * the return of this function. The caller is not required to hold any locks.
3392 lpfc_sli_abort_iocb_ring(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
3394 LIST_HEAD(completions
);
3395 struct lpfc_iocbq
*iocb
, *next_iocb
;
3397 if (pring
->ringno
== LPFC_ELS_RING
) {
3398 lpfc_fabric_abort_hba(phba
);
3401 /* Error everything on txq and txcmplq
3404 spin_lock_irq(&phba
->hbalock
);
3405 list_splice_init(&pring
->txq
, &completions
);
3408 /* Next issue ABTS for everything on the txcmplq */
3409 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txcmplq
, list
)
3410 lpfc_sli_issue_abort_iotag(phba
, pring
, iocb
);
3412 spin_unlock_irq(&phba
->hbalock
);
3414 /* Cancel all the IOCBs from the completions list */
3415 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
3420 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
3421 * @phba: Pointer to HBA context object.
3423 * This function flushes all iocbs in the fcp ring and frees all the iocb
3424 * objects in txq and txcmplq. This function will not issue abort iocbs
3425 * for all the iocb commands in txcmplq, they will just be returned with
3426 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3427 * slot has been permanently disabled.
3430 lpfc_sli_flush_fcp_rings(struct lpfc_hba
*phba
)
3434 struct lpfc_sli
*psli
= &phba
->sli
;
3435 struct lpfc_sli_ring
*pring
;
3437 /* Currently, only one fcp ring */
3438 pring
= &psli
->ring
[psli
->fcp_ring
];
3440 spin_lock_irq(&phba
->hbalock
);
3441 /* Retrieve everything on txq */
3442 list_splice_init(&pring
->txq
, &txq
);
3445 /* Retrieve everything on the txcmplq */
3446 list_splice_init(&pring
->txcmplq
, &txcmplq
);
3447 pring
->txcmplq_cnt
= 0;
3448 spin_unlock_irq(&phba
->hbalock
);
3451 lpfc_sli_cancel_iocbs(phba
, &txq
, IOSTAT_LOCAL_REJECT
,
3454 /* Flush the txcmpq */
3455 lpfc_sli_cancel_iocbs(phba
, &txcmplq
, IOSTAT_LOCAL_REJECT
,
3460 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
3461 * @phba: Pointer to HBA context object.
3462 * @mask: Bit mask to be checked.
3464 * This function reads the host status register and compares
3465 * with the provided bit mask to check if HBA completed
3466 * the restart. This function will wait in a loop for the
3467 * HBA to complete restart. If the HBA does not restart within
3468 * 15 iterations, the function will reset the HBA again. The
3469 * function returns 1 when HBA fail to restart otherwise returns
3473 lpfc_sli_brdready_s3(struct lpfc_hba
*phba
, uint32_t mask
)
3479 /* Read the HBA Host Status Register */
3480 status
= readl(phba
->HSregaddr
);
3483 * Check status register every 100ms for 5 retries, then every
3484 * 500ms for 5, then every 2.5 sec for 5, then reset board and
3485 * every 2.5 sec for 4.
3486 * Break our of the loop if errors occurred during init.
3488 while (((status
& mask
) != mask
) &&
3489 !(status
& HS_FFERM
) &&
3501 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
3502 lpfc_sli_brdrestart(phba
);
3504 /* Read the HBA Host Status Register */
3505 status
= readl(phba
->HSregaddr
);
3508 /* Check to see if any errors occurred during init */
3509 if ((status
& HS_FFERM
) || (i
>= 20)) {
3510 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3511 "2751 Adapter failed to restart, "
3512 "status reg x%x, FW Data: A8 x%x AC x%x\n",
3514 readl(phba
->MBslimaddr
+ 0xa8),
3515 readl(phba
->MBslimaddr
+ 0xac));
3516 phba
->link_state
= LPFC_HBA_ERROR
;
3524 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3525 * @phba: Pointer to HBA context object.
3526 * @mask: Bit mask to be checked.
3528 * This function checks the host status register to check if HBA is
3529 * ready. This function will wait in a loop for the HBA to be ready
3530 * If the HBA is not ready , the function will will reset the HBA PCI
3531 * function again. The function returns 1 when HBA fail to be ready
3532 * otherwise returns zero.
3535 lpfc_sli_brdready_s4(struct lpfc_hba
*phba
, uint32_t mask
)
3540 /* Read the HBA Host Status Register */
3541 status
= lpfc_sli4_post_status_check(phba
);
3544 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
3545 lpfc_sli_brdrestart(phba
);
3546 status
= lpfc_sli4_post_status_check(phba
);
3549 /* Check to see if any errors occurred during init */
3551 phba
->link_state
= LPFC_HBA_ERROR
;
3554 phba
->sli4_hba
.intr_enable
= 0;
3560 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3561 * @phba: Pointer to HBA context object.
3562 * @mask: Bit mask to be checked.
3564 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3565 * from the API jump table function pointer from the lpfc_hba struct.
3568 lpfc_sli_brdready(struct lpfc_hba
*phba
, uint32_t mask
)
3570 return phba
->lpfc_sli_brdready(phba
, mask
);
3573 #define BARRIER_TEST_PATTERN (0xdeadbeef)
3576 * lpfc_reset_barrier - Make HBA ready for HBA reset
3577 * @phba: Pointer to HBA context object.
3579 * This function is called before resetting an HBA. This
3580 * function requests HBA to quiesce DMAs before a reset.
3582 void lpfc_reset_barrier(struct lpfc_hba
*phba
)
3584 uint32_t __iomem
*resp_buf
;
3585 uint32_t __iomem
*mbox_buf
;
3586 volatile uint32_t mbox
;
3591 pci_read_config_byte(phba
->pcidev
, PCI_HEADER_TYPE
, &hdrtype
);
3592 if (hdrtype
!= 0x80 ||
3593 (FC_JEDEC_ID(phba
->vpd
.rev
.biuRev
) != HELIOS_JEDEC_ID
&&
3594 FC_JEDEC_ID(phba
->vpd
.rev
.biuRev
) != THOR_JEDEC_ID
))
3598 * Tell the other part of the chip to suspend temporarily all
3601 resp_buf
= phba
->MBslimaddr
;
3603 /* Disable the error attention */
3604 hc_copy
= readl(phba
->HCregaddr
);
3605 writel((hc_copy
& ~HC_ERINT_ENA
), phba
->HCregaddr
);
3606 readl(phba
->HCregaddr
); /* flush */
3607 phba
->link_flag
|= LS_IGNORE_ERATT
;
3609 if (readl(phba
->HAregaddr
) & HA_ERATT
) {
3610 /* Clear Chip error bit */
3611 writel(HA_ERATT
, phba
->HAregaddr
);
3612 phba
->pport
->stopped
= 1;
3616 ((MAILBOX_t
*)&mbox
)->mbxCommand
= MBX_KILL_BOARD
;
3617 ((MAILBOX_t
*)&mbox
)->mbxOwner
= OWN_CHIP
;
3619 writel(BARRIER_TEST_PATTERN
, (resp_buf
+ 1));
3620 mbox_buf
= phba
->MBslimaddr
;
3621 writel(mbox
, mbox_buf
);
3624 readl(resp_buf
+ 1) != ~(BARRIER_TEST_PATTERN
) && i
< 50; i
++)
3627 if (readl(resp_buf
+ 1) != ~(BARRIER_TEST_PATTERN
)) {
3628 if (phba
->sli
.sli_flag
& LPFC_SLI_ACTIVE
||
3629 phba
->pport
->stopped
)
3635 ((MAILBOX_t
*)&mbox
)->mbxOwner
= OWN_HOST
;
3636 for (i
= 0; readl(resp_buf
) != mbox
&& i
< 500; i
++)
3641 while (!(readl(phba
->HAregaddr
) & HA_ERATT
) && ++i
< 500)
3644 if (readl(phba
->HAregaddr
) & HA_ERATT
) {
3645 writel(HA_ERATT
, phba
->HAregaddr
);
3646 phba
->pport
->stopped
= 1;
3650 phba
->link_flag
&= ~LS_IGNORE_ERATT
;
3651 writel(hc_copy
, phba
->HCregaddr
);
3652 readl(phba
->HCregaddr
); /* flush */
3656 * lpfc_sli_brdkill - Issue a kill_board mailbox command
3657 * @phba: Pointer to HBA context object.
3659 * This function issues a kill_board mailbox command and waits for
3660 * the error attention interrupt. This function is called for stopping
3661 * the firmware processing. The caller is not required to hold any
3662 * locks. This function calls lpfc_hba_down_post function to free
3663 * any pending commands after the kill. The function will return 1 when it
3664 * fails to kill the board else will return 0.
3667 lpfc_sli_brdkill(struct lpfc_hba
*phba
)
3669 struct lpfc_sli
*psli
;
3679 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3680 "0329 Kill HBA Data: x%x x%x\n",
3681 phba
->pport
->port_state
, psli
->sli_flag
);
3683 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3687 /* Disable the error attention */
3688 spin_lock_irq(&phba
->hbalock
);
3689 status
= readl(phba
->HCregaddr
);
3690 status
&= ~HC_ERINT_ENA
;
3691 writel(status
, phba
->HCregaddr
);
3692 readl(phba
->HCregaddr
); /* flush */
3693 phba
->link_flag
|= LS_IGNORE_ERATT
;
3694 spin_unlock_irq(&phba
->hbalock
);
3696 lpfc_kill_board(phba
, pmb
);
3697 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
3698 retval
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
3700 if (retval
!= MBX_SUCCESS
) {
3701 if (retval
!= MBX_BUSY
)
3702 mempool_free(pmb
, phba
->mbox_mem_pool
);
3703 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3704 "2752 KILL_BOARD command failed retval %d\n",
3706 spin_lock_irq(&phba
->hbalock
);
3707 phba
->link_flag
&= ~LS_IGNORE_ERATT
;
3708 spin_unlock_irq(&phba
->hbalock
);
3712 spin_lock_irq(&phba
->hbalock
);
3713 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
3714 spin_unlock_irq(&phba
->hbalock
);
3716 mempool_free(pmb
, phba
->mbox_mem_pool
);
3718 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
3719 * attention every 100ms for 3 seconds. If we don't get ERATT after
3720 * 3 seconds we still set HBA_ERROR state because the status of the
3721 * board is now undefined.
3723 ha_copy
= readl(phba
->HAregaddr
);
3725 while ((i
++ < 30) && !(ha_copy
& HA_ERATT
)) {
3727 ha_copy
= readl(phba
->HAregaddr
);
3730 del_timer_sync(&psli
->mbox_tmo
);
3731 if (ha_copy
& HA_ERATT
) {
3732 writel(HA_ERATT
, phba
->HAregaddr
);
3733 phba
->pport
->stopped
= 1;
3735 spin_lock_irq(&phba
->hbalock
);
3736 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
3737 psli
->mbox_active
= NULL
;
3738 phba
->link_flag
&= ~LS_IGNORE_ERATT
;
3739 spin_unlock_irq(&phba
->hbalock
);
3741 lpfc_hba_down_post(phba
);
3742 phba
->link_state
= LPFC_HBA_ERROR
;
3744 return ha_copy
& HA_ERATT
? 0 : 1;
3748 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
3749 * @phba: Pointer to HBA context object.
3751 * This function resets the HBA by writing HC_INITFF to the control
3752 * register. After the HBA resets, this function resets all the iocb ring
3753 * indices. This function disables PCI layer parity checking during
3755 * This function returns 0 always.
3756 * The caller is not required to hold any locks.
3759 lpfc_sli_brdreset(struct lpfc_hba
*phba
)
3761 struct lpfc_sli
*psli
;
3762 struct lpfc_sli_ring
*pring
;
3769 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3770 "0325 Reset HBA Data: x%x x%x\n",
3771 phba
->pport
->port_state
, psli
->sli_flag
);
3773 /* perform board reset */
3774 phba
->fc_eventTag
= 0;
3775 phba
->link_events
= 0;
3776 phba
->pport
->fc_myDID
= 0;
3777 phba
->pport
->fc_prevDID
= 0;
3779 /* Turn off parity checking and serr during the physical reset */
3780 pci_read_config_word(phba
->pcidev
, PCI_COMMAND
, &cfg_value
);
3781 pci_write_config_word(phba
->pcidev
, PCI_COMMAND
,
3783 ~(PCI_COMMAND_PARITY
| PCI_COMMAND_SERR
)));
3785 psli
->sli_flag
&= ~(LPFC_SLI_ACTIVE
| LPFC_PROCESS_LA
);
3787 /* Now toggle INITFF bit in the Host Control Register */
3788 writel(HC_INITFF
, phba
->HCregaddr
);
3790 readl(phba
->HCregaddr
); /* flush */
3791 writel(0, phba
->HCregaddr
);
3792 readl(phba
->HCregaddr
); /* flush */
3794 /* Restore PCI cmd register */
3795 pci_write_config_word(phba
->pcidev
, PCI_COMMAND
, cfg_value
);
3797 /* Initialize relevant SLI info */
3798 for (i
= 0; i
< psli
->num_rings
; i
++) {
3799 pring
= &psli
->ring
[i
];
3802 pring
->next_cmdidx
= 0;
3803 pring
->local_getidx
= 0;
3805 pring
->missbufcnt
= 0;
3808 phba
->link_state
= LPFC_WARM_START
;
3813 * lpfc_sli4_brdreset - Reset a sli-4 HBA
3814 * @phba: Pointer to HBA context object.
3816 * This function resets a SLI4 HBA. This function disables PCI layer parity
3817 * checking during resets the device. The caller is not required to hold
3820 * This function returns 0 always.
3823 lpfc_sli4_brdreset(struct lpfc_hba
*phba
)
3825 struct lpfc_sli
*psli
= &phba
->sli
;
3830 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3831 "0295 Reset HBA Data: x%x x%x\n",
3832 phba
->pport
->port_state
, psli
->sli_flag
);
3834 /* perform board reset */
3835 phba
->fc_eventTag
= 0;
3836 phba
->link_events
= 0;
3837 phba
->pport
->fc_myDID
= 0;
3838 phba
->pport
->fc_prevDID
= 0;
3840 spin_lock_irq(&phba
->hbalock
);
3841 psli
->sli_flag
&= ~(LPFC_PROCESS_LA
);
3842 phba
->fcf
.fcf_flag
= 0;
3843 /* Clean up the child queue list for the CQs */
3844 list_del_init(&phba
->sli4_hba
.mbx_wq
->list
);
3845 list_del_init(&phba
->sli4_hba
.els_wq
->list
);
3846 list_del_init(&phba
->sli4_hba
.hdr_rq
->list
);
3847 list_del_init(&phba
->sli4_hba
.dat_rq
->list
);
3848 list_del_init(&phba
->sli4_hba
.mbx_cq
->list
);
3849 list_del_init(&phba
->sli4_hba
.els_cq
->list
);
3850 for (qindx
= 0; qindx
< phba
->cfg_fcp_wq_count
; qindx
++)
3851 list_del_init(&phba
->sli4_hba
.fcp_wq
[qindx
]->list
);
3852 for (qindx
= 0; qindx
< phba
->cfg_fcp_eq_count
; qindx
++)
3853 list_del_init(&phba
->sli4_hba
.fcp_cq
[qindx
]->list
);
3854 spin_unlock_irq(&phba
->hbalock
);
3856 /* Now physically reset the device */
3857 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
3858 "0389 Performing PCI function reset!\n");
3860 /* Turn off parity checking and serr during the physical reset */
3861 pci_read_config_word(phba
->pcidev
, PCI_COMMAND
, &cfg_value
);
3862 pci_write_config_word(phba
->pcidev
, PCI_COMMAND
, (cfg_value
&
3863 ~(PCI_COMMAND_PARITY
| PCI_COMMAND_SERR
)));
3865 /* Perform FCoE PCI function reset */
3866 lpfc_pci_function_reset(phba
);
3868 /* Restore PCI cmd register */
3869 pci_write_config_word(phba
->pcidev
, PCI_COMMAND
, cfg_value
);
3875 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
3876 * @phba: Pointer to HBA context object.
3878 * This function is called in the SLI initialization code path to
3879 * restart the HBA. The caller is not required to hold any lock.
3880 * This function writes MBX_RESTART mailbox command to the SLIM and
3881 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
3882 * function to free any pending commands. The function enables
3883 * POST only during the first initialization. The function returns zero.
3884 * The function does not guarantee completion of MBX_RESTART mailbox
3885 * command before the return of this function.
3888 lpfc_sli_brdrestart_s3(struct lpfc_hba
*phba
)
3891 struct lpfc_sli
*psli
;
3892 volatile uint32_t word0
;
3893 void __iomem
*to_slim
;
3894 uint32_t hba_aer_enabled
;
3896 spin_lock_irq(&phba
->hbalock
);
3898 /* Take PCIe device Advanced Error Reporting (AER) state */
3899 hba_aer_enabled
= phba
->hba_flag
& HBA_AER_ENABLED
;
3904 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3905 "0337 Restart HBA Data: x%x x%x\n",
3906 phba
->pport
->port_state
, psli
->sli_flag
);
3909 mb
= (MAILBOX_t
*) &word0
;
3910 mb
->mbxCommand
= MBX_RESTART
;
3913 lpfc_reset_barrier(phba
);
3915 to_slim
= phba
->MBslimaddr
;
3916 writel(*(uint32_t *) mb
, to_slim
);
3917 readl(to_slim
); /* flush */
3919 /* Only skip post after fc_ffinit is completed */
3920 if (phba
->pport
->port_state
)
3921 word0
= 1; /* This is really setting up word1 */
3923 word0
= 0; /* This is really setting up word1 */
3924 to_slim
= phba
->MBslimaddr
+ sizeof (uint32_t);
3925 writel(*(uint32_t *) mb
, to_slim
);
3926 readl(to_slim
); /* flush */
3928 lpfc_sli_brdreset(phba
);
3929 phba
->pport
->stopped
= 0;
3930 phba
->link_state
= LPFC_INIT_START
;
3932 spin_unlock_irq(&phba
->hbalock
);
3934 memset(&psli
->lnk_stat_offsets
, 0, sizeof(psli
->lnk_stat_offsets
));
3935 psli
->stats_start
= get_seconds();
3937 /* Give the INITFF and Post time to settle. */
3940 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
3941 if (hba_aer_enabled
)
3942 pci_disable_pcie_error_reporting(phba
->pcidev
);
3944 lpfc_hba_down_post(phba
);
3950 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
3951 * @phba: Pointer to HBA context object.
3953 * This function is called in the SLI initialization code path to restart
3954 * a SLI4 HBA. The caller is not required to hold any lock.
3955 * At the end of the function, it calls lpfc_hba_down_post function to
3956 * free any pending commands.
3959 lpfc_sli_brdrestart_s4(struct lpfc_hba
*phba
)
3961 struct lpfc_sli
*psli
= &phba
->sli
;
3962 uint32_t hba_aer_enabled
;
3965 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3966 "0296 Restart HBA Data: x%x x%x\n",
3967 phba
->pport
->port_state
, psli
->sli_flag
);
3969 /* Take PCIe device Advanced Error Reporting (AER) state */
3970 hba_aer_enabled
= phba
->hba_flag
& HBA_AER_ENABLED
;
3972 lpfc_sli4_brdreset(phba
);
3974 spin_lock_irq(&phba
->hbalock
);
3975 phba
->pport
->stopped
= 0;
3976 phba
->link_state
= LPFC_INIT_START
;
3978 spin_unlock_irq(&phba
->hbalock
);
3980 memset(&psli
->lnk_stat_offsets
, 0, sizeof(psli
->lnk_stat_offsets
));
3981 psli
->stats_start
= get_seconds();
3983 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
3984 if (hba_aer_enabled
)
3985 pci_disable_pcie_error_reporting(phba
->pcidev
);
3987 lpfc_hba_down_post(phba
);
3993 * lpfc_sli_brdrestart - Wrapper func for restarting hba
3994 * @phba: Pointer to HBA context object.
3996 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
3997 * API jump table function pointer from the lpfc_hba struct.
4000 lpfc_sli_brdrestart(struct lpfc_hba
*phba
)
4002 return phba
->lpfc_sli_brdrestart(phba
);
4006 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
4007 * @phba: Pointer to HBA context object.
4009 * This function is called after a HBA restart to wait for successful
4010 * restart of the HBA. Successful restart of the HBA is indicated by
4011 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
4012 * iteration, the function will restart the HBA again. The function returns
4013 * zero if HBA successfully restarted else returns negative error code.
4016 lpfc_sli_chipset_init(struct lpfc_hba
*phba
)
4018 uint32_t status
, i
= 0;
4020 /* Read the HBA Host Status Register */
4021 status
= readl(phba
->HSregaddr
);
4023 /* Check status register to see what current state is */
4025 while ((status
& (HS_FFRDY
| HS_MBRDY
)) != (HS_FFRDY
| HS_MBRDY
)) {
4027 /* Check every 10ms for 10 retries, then every 100ms for 90
4028 * retries, then every 1 sec for 50 retires for a total of
4029 * ~60 seconds before reset the board again and check every
4030 * 1 sec for 50 retries. The up to 60 seconds before the
4031 * board ready is required by the Falcon FIPS zeroization
4032 * complete, and any reset the board in between shall cause
4033 * restart of zeroization, further delay the board ready.
4036 /* Adapter failed to init, timeout, status reg
4038 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4039 "0436 Adapter failed to init, "
4040 "timeout, status reg x%x, "
4041 "FW Data: A8 x%x AC x%x\n", status
,
4042 readl(phba
->MBslimaddr
+ 0xa8),
4043 readl(phba
->MBslimaddr
+ 0xac));
4044 phba
->link_state
= LPFC_HBA_ERROR
;
4048 /* Check to see if any errors occurred during init */
4049 if (status
& HS_FFERM
) {
4050 /* ERROR: During chipset initialization */
4051 /* Adapter failed to init, chipset, status reg
4053 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4054 "0437 Adapter failed to init, "
4055 "chipset, status reg x%x, "
4056 "FW Data: A8 x%x AC x%x\n", status
,
4057 readl(phba
->MBslimaddr
+ 0xa8),
4058 readl(phba
->MBslimaddr
+ 0xac));
4059 phba
->link_state
= LPFC_HBA_ERROR
;
4072 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
4073 lpfc_sli_brdrestart(phba
);
4075 /* Read the HBA Host Status Register */
4076 status
= readl(phba
->HSregaddr
);
4079 /* Check to see if any errors occurred during init */
4080 if (status
& HS_FFERM
) {
4081 /* ERROR: During chipset initialization */
4082 /* Adapter failed to init, chipset, status reg <status> */
4083 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4084 "0438 Adapter failed to init, chipset, "
4086 "FW Data: A8 x%x AC x%x\n", status
,
4087 readl(phba
->MBslimaddr
+ 0xa8),
4088 readl(phba
->MBslimaddr
+ 0xac));
4089 phba
->link_state
= LPFC_HBA_ERROR
;
4093 /* Clear all interrupt enable conditions */
4094 writel(0, phba
->HCregaddr
);
4095 readl(phba
->HCregaddr
); /* flush */
4097 /* setup host attn register */
4098 writel(0xffffffff, phba
->HAregaddr
);
4099 readl(phba
->HAregaddr
); /* flush */
4104 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
4106 * This function calculates and returns the number of HBQs required to be
4110 lpfc_sli_hbq_count(void)
4112 return ARRAY_SIZE(lpfc_hbq_defs
);
4116 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
4118 * This function adds the number of hbq entries in every HBQ to get
4119 * the total number of hbq entries required for the HBA and returns
4123 lpfc_sli_hbq_entry_count(void)
4125 int hbq_count
= lpfc_sli_hbq_count();
4129 for (i
= 0; i
< hbq_count
; ++i
)
4130 count
+= lpfc_hbq_defs
[i
]->entry_count
;
4135 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
4137 * This function calculates amount of memory required for all hbq entries
4138 * to be configured and returns the total memory required.
4141 lpfc_sli_hbq_size(void)
4143 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry
);
4147 * lpfc_sli_hbq_setup - configure and initialize HBQs
4148 * @phba: Pointer to HBA context object.
4150 * This function is called during the SLI initialization to configure
4151 * all the HBQs and post buffers to the HBQ. The caller is not
4152 * required to hold any locks. This function will return zero if successful
4153 * else it will return negative error code.
4156 lpfc_sli_hbq_setup(struct lpfc_hba
*phba
)
4158 int hbq_count
= lpfc_sli_hbq_count();
4162 uint32_t hbq_entry_index
;
4164 /* Get a Mailbox buffer to setup mailbox
4165 * commands for HBA initialization
4167 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4174 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
4175 phba
->link_state
= LPFC_INIT_MBX_CMDS
;
4176 phba
->hbq_in_use
= 1;
4178 hbq_entry_index
= 0;
4179 for (hbqno
= 0; hbqno
< hbq_count
; ++hbqno
) {
4180 phba
->hbqs
[hbqno
].next_hbqPutIdx
= 0;
4181 phba
->hbqs
[hbqno
].hbqPutIdx
= 0;
4182 phba
->hbqs
[hbqno
].local_hbqGetIdx
= 0;
4183 phba
->hbqs
[hbqno
].entry_count
=
4184 lpfc_hbq_defs
[hbqno
]->entry_count
;
4185 lpfc_config_hbq(phba
, hbqno
, lpfc_hbq_defs
[hbqno
],
4186 hbq_entry_index
, pmb
);
4187 hbq_entry_index
+= phba
->hbqs
[hbqno
].entry_count
;
4189 if (lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
) != MBX_SUCCESS
) {
4190 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
4191 mbxStatus <status>, ring <num> */
4193 lpfc_printf_log(phba
, KERN_ERR
,
4194 LOG_SLI
| LOG_VPORT
,
4195 "1805 Adapter failed to init. "
4196 "Data: x%x x%x x%x\n",
4198 pmbox
->mbxStatus
, hbqno
);
4200 phba
->link_state
= LPFC_HBA_ERROR
;
4201 mempool_free(pmb
, phba
->mbox_mem_pool
);
4205 phba
->hbq_count
= hbq_count
;
4207 mempool_free(pmb
, phba
->mbox_mem_pool
);
4209 /* Initially populate or replenish the HBQs */
4210 for (hbqno
= 0; hbqno
< hbq_count
; ++hbqno
)
4211 lpfc_sli_hbqbuf_init_hbqs(phba
, hbqno
);
4216 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
4217 * @phba: Pointer to HBA context object.
4219 * This function is called during the SLI initialization to configure
4220 * all the HBQs and post buffers to the HBQ. The caller is not
4221 * required to hold any locks. This function will return zero if successful
4222 * else it will return negative error code.
4225 lpfc_sli4_rb_setup(struct lpfc_hba
*phba
)
4227 phba
->hbq_in_use
= 1;
4228 phba
->hbqs
[0].entry_count
= lpfc_hbq_defs
[0]->entry_count
;
4229 phba
->hbq_count
= 1;
4230 /* Initially populate or replenish the HBQs */
4231 lpfc_sli_hbqbuf_init_hbqs(phba
, 0);
4236 * lpfc_sli_config_port - Issue config port mailbox command
4237 * @phba: Pointer to HBA context object.
4238 * @sli_mode: sli mode - 2/3
4240 * This function is called by the sli intialization code path
4241 * to issue config_port mailbox command. This function restarts the
4242 * HBA firmware and issues a config_port mailbox command to configure
4243 * the SLI interface in the sli mode specified by sli_mode
4244 * variable. The caller is not required to hold any locks.
4245 * The function returns 0 if successful, else returns negative error
4249 lpfc_sli_config_port(struct lpfc_hba
*phba
, int sli_mode
)
4252 uint32_t resetcount
= 0, rc
= 0, done
= 0;
4254 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4256 phba
->link_state
= LPFC_HBA_ERROR
;
4260 phba
->sli_rev
= sli_mode
;
4261 while (resetcount
< 2 && !done
) {
4262 spin_lock_irq(&phba
->hbalock
);
4263 phba
->sli
.sli_flag
|= LPFC_SLI_MBOX_ACTIVE
;
4264 spin_unlock_irq(&phba
->hbalock
);
4265 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
4266 lpfc_sli_brdrestart(phba
);
4267 rc
= lpfc_sli_chipset_init(phba
);
4271 spin_lock_irq(&phba
->hbalock
);
4272 phba
->sli
.sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
4273 spin_unlock_irq(&phba
->hbalock
);
4276 /* Call pre CONFIG_PORT mailbox command initialization. A
4277 * value of 0 means the call was successful. Any other
4278 * nonzero value is a failure, but if ERESTART is returned,
4279 * the driver may reset the HBA and try again.
4281 rc
= lpfc_config_port_prep(phba
);
4282 if (rc
== -ERESTART
) {
4283 phba
->link_state
= LPFC_LINK_UNKNOWN
;
4287 phba
->link_state
= LPFC_INIT_MBX_CMDS
;
4288 lpfc_config_port(phba
, pmb
);
4289 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
4290 phba
->sli3_options
&= ~(LPFC_SLI3_NPIV_ENABLED
|
4291 LPFC_SLI3_HBQ_ENABLED
|
4292 LPFC_SLI3_CRP_ENABLED
|
4293 LPFC_SLI3_BG_ENABLED
|
4294 LPFC_SLI3_DSS_ENABLED
);
4295 if (rc
!= MBX_SUCCESS
) {
4296 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4297 "0442 Adapter failed to init, mbxCmd x%x "
4298 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
4299 pmb
->u
.mb
.mbxCommand
, pmb
->u
.mb
.mbxStatus
, 0);
4300 spin_lock_irq(&phba
->hbalock
);
4301 phba
->sli
.sli_flag
&= ~LPFC_SLI_ACTIVE
;
4302 spin_unlock_irq(&phba
->hbalock
);
4305 /* Allow asynchronous mailbox command to go through */
4306 spin_lock_irq(&phba
->hbalock
);
4307 phba
->sli
.sli_flag
&= ~LPFC_SLI_ASYNC_MBX_BLK
;
4308 spin_unlock_irq(&phba
->hbalock
);
4314 goto do_prep_failed
;
4316 if (pmb
->u
.mb
.un
.varCfgPort
.sli_mode
== 3) {
4317 if (!pmb
->u
.mb
.un
.varCfgPort
.cMA
) {
4319 goto do_prep_failed
;
4321 if (phba
->max_vpi
&& pmb
->u
.mb
.un
.varCfgPort
.gmv
) {
4322 phba
->sli3_options
|= LPFC_SLI3_NPIV_ENABLED
;
4323 phba
->max_vpi
= pmb
->u
.mb
.un
.varCfgPort
.max_vpi
;
4324 phba
->max_vports
= (phba
->max_vpi
> phba
->max_vports
) ?
4325 phba
->max_vpi
: phba
->max_vports
;
4329 phba
->fips_level
= 0;
4330 phba
->fips_spec_rev
= 0;
4331 if (pmb
->u
.mb
.un
.varCfgPort
.gdss
) {
4332 phba
->sli3_options
|= LPFC_SLI3_DSS_ENABLED
;
4333 phba
->fips_level
= pmb
->u
.mb
.un
.varCfgPort
.fips_level
;
4334 phba
->fips_spec_rev
= pmb
->u
.mb
.un
.varCfgPort
.fips_rev
;
4335 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4336 "2850 Security Crypto Active. FIPS x%d "
4338 phba
->fips_level
, phba
->fips_spec_rev
);
4340 if (pmb
->u
.mb
.un
.varCfgPort
.sec_err
) {
4341 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4342 "2856 Config Port Security Crypto "
4344 pmb
->u
.mb
.un
.varCfgPort
.sec_err
);
4346 if (pmb
->u
.mb
.un
.varCfgPort
.gerbm
)
4347 phba
->sli3_options
|= LPFC_SLI3_HBQ_ENABLED
;
4348 if (pmb
->u
.mb
.un
.varCfgPort
.gcrp
)
4349 phba
->sli3_options
|= LPFC_SLI3_CRP_ENABLED
;
4351 phba
->hbq_get
= phba
->mbox
->us
.s3_pgp
.hbq_get
;
4352 phba
->port_gp
= phba
->mbox
->us
.s3_pgp
.port
;
4354 if (phba
->cfg_enable_bg
) {
4355 if (pmb
->u
.mb
.un
.varCfgPort
.gbg
)
4356 phba
->sli3_options
|= LPFC_SLI3_BG_ENABLED
;
4358 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4359 "0443 Adapter did not grant "
4363 phba
->hbq_get
= NULL
;
4364 phba
->port_gp
= phba
->mbox
->us
.s2
.port
;
4368 mempool_free(pmb
, phba
->mbox_mem_pool
);
4374 * lpfc_sli_hba_setup - SLI intialization function
4375 * @phba: Pointer to HBA context object.
4377 * This function is the main SLI intialization function. This function
4378 * is called by the HBA intialization code, HBA reset code and HBA
4379 * error attention handler code. Caller is not required to hold any
4380 * locks. This function issues config_port mailbox command to configure
4381 * the SLI, setup iocb rings and HBQ rings. In the end the function
4382 * calls the config_port_post function to issue init_link mailbox
4383 * command and to start the discovery. The function will return zero
4384 * if successful, else it will return negative error code.
4387 lpfc_sli_hba_setup(struct lpfc_hba
*phba
)
4392 switch (lpfc_sli_mode
) {
4394 if (phba
->cfg_enable_npiv
) {
4395 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
| LOG_VPORT
,
4396 "1824 NPIV enabled: Override lpfc_sli_mode "
4397 "parameter (%d) to auto (0).\n",
4407 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
| LOG_VPORT
,
4408 "1819 Unrecognized lpfc_sli_mode "
4409 "parameter: %d.\n", lpfc_sli_mode
);
4414 rc
= lpfc_sli_config_port(phba
, mode
);
4416 if (rc
&& lpfc_sli_mode
== 3)
4417 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
| LOG_VPORT
,
4418 "1820 Unable to select SLI-3. "
4419 "Not supported by adapter.\n");
4420 if (rc
&& mode
!= 2)
4421 rc
= lpfc_sli_config_port(phba
, 2);
4423 goto lpfc_sli_hba_setup_error
;
4425 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4426 if (phba
->cfg_aer_support
== 1 && !(phba
->hba_flag
& HBA_AER_ENABLED
)) {
4427 rc
= pci_enable_pcie_error_reporting(phba
->pcidev
);
4429 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4430 "2709 This device supports "
4431 "Advanced Error Reporting (AER)\n");
4432 spin_lock_irq(&phba
->hbalock
);
4433 phba
->hba_flag
|= HBA_AER_ENABLED
;
4434 spin_unlock_irq(&phba
->hbalock
);
4436 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4437 "2708 This device does not support "
4438 "Advanced Error Reporting (AER)\n");
4439 phba
->cfg_aer_support
= 0;
4443 if (phba
->sli_rev
== 3) {
4444 phba
->iocb_cmd_size
= SLI3_IOCB_CMD_SIZE
;
4445 phba
->iocb_rsp_size
= SLI3_IOCB_RSP_SIZE
;
4447 phba
->iocb_cmd_size
= SLI2_IOCB_CMD_SIZE
;
4448 phba
->iocb_rsp_size
= SLI2_IOCB_RSP_SIZE
;
4449 phba
->sli3_options
= 0;
4452 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4453 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
4454 phba
->sli_rev
, phba
->max_vpi
);
4455 rc
= lpfc_sli_ring_map(phba
);
4458 goto lpfc_sli_hba_setup_error
;
4461 if (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) {
4462 rc
= lpfc_sli_hbq_setup(phba
);
4464 goto lpfc_sli_hba_setup_error
;
4466 spin_lock_irq(&phba
->hbalock
);
4467 phba
->sli
.sli_flag
|= LPFC_PROCESS_LA
;
4468 spin_unlock_irq(&phba
->hbalock
);
4470 rc
= lpfc_config_port_post(phba
);
4472 goto lpfc_sli_hba_setup_error
;
4476 lpfc_sli_hba_setup_error
:
4477 phba
->link_state
= LPFC_HBA_ERROR
;
4478 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4479 "0445 Firmware initialization failed\n");
4484 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
4485 * @phba: Pointer to HBA context object.
4486 * @mboxq: mailbox pointer.
4487 * This function issue a dump mailbox command to read config region
4488 * 23 and parse the records in the region and populate driver
4492 lpfc_sli4_read_fcoe_params(struct lpfc_hba
*phba
,
4493 LPFC_MBOXQ_t
*mboxq
)
4495 struct lpfc_dmabuf
*mp
;
4496 struct lpfc_mqe
*mqe
;
4497 uint32_t data_length
;
4500 /* Program the default value of vlan_id and fc_map */
4501 phba
->valid_vlan
= 0;
4502 phba
->fc_map
[0] = LPFC_FCOE_FCF_MAP0
;
4503 phba
->fc_map
[1] = LPFC_FCOE_FCF_MAP1
;
4504 phba
->fc_map
[2] = LPFC_FCOE_FCF_MAP2
;
4506 mqe
= &mboxq
->u
.mqe
;
4507 if (lpfc_dump_fcoe_param(phba
, mboxq
))
4510 mp
= (struct lpfc_dmabuf
*) mboxq
->context1
;
4511 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4513 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
4514 "(%d):2571 Mailbox cmd x%x Status x%x "
4515 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4516 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4517 "CQ: x%x x%x x%x x%x\n",
4518 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
4519 bf_get(lpfc_mqe_command
, mqe
),
4520 bf_get(lpfc_mqe_status
, mqe
),
4521 mqe
->un
.mb_words
[0], mqe
->un
.mb_words
[1],
4522 mqe
->un
.mb_words
[2], mqe
->un
.mb_words
[3],
4523 mqe
->un
.mb_words
[4], mqe
->un
.mb_words
[5],
4524 mqe
->un
.mb_words
[6], mqe
->un
.mb_words
[7],
4525 mqe
->un
.mb_words
[8], mqe
->un
.mb_words
[9],
4526 mqe
->un
.mb_words
[10], mqe
->un
.mb_words
[11],
4527 mqe
->un
.mb_words
[12], mqe
->un
.mb_words
[13],
4528 mqe
->un
.mb_words
[14], mqe
->un
.mb_words
[15],
4529 mqe
->un
.mb_words
[16], mqe
->un
.mb_words
[50],
4531 mboxq
->mcqe
.mcqe_tag0
, mboxq
->mcqe
.mcqe_tag1
,
4532 mboxq
->mcqe
.trailer
);
4535 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
4539 data_length
= mqe
->un
.mb_words
[5];
4540 if (data_length
> DMP_RGN23_SIZE
) {
4541 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
4546 lpfc_parse_fcoe_conf(phba
, mp
->virt
, data_length
);
4547 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
4553 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
4554 * @phba: pointer to lpfc hba data structure.
4555 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
4556 * @vpd: pointer to the memory to hold resulting port vpd data.
4557 * @vpd_size: On input, the number of bytes allocated to @vpd.
4558 * On output, the number of data bytes in @vpd.
4560 * This routine executes a READ_REV SLI4 mailbox command. In
4561 * addition, this routine gets the port vpd data.
4565 * -ENOMEM - could not allocated memory.
4568 lpfc_sli4_read_rev(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
,
4569 uint8_t *vpd
, uint32_t *vpd_size
)
4573 struct lpfc_dmabuf
*dmabuf
;
4574 struct lpfc_mqe
*mqe
;
4576 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
4581 * Get a DMA buffer for the vpd data resulting from the READ_REV
4584 dma_size
= *vpd_size
;
4585 dmabuf
->virt
= dma_alloc_coherent(&phba
->pcidev
->dev
,
4589 if (!dmabuf
->virt
) {
4593 memset(dmabuf
->virt
, 0, dma_size
);
4596 * The SLI4 implementation of READ_REV conflicts at word1,
4597 * bits 31:16 and SLI4 adds vpd functionality not present
4598 * in SLI3. This code corrects the conflicts.
4600 lpfc_read_rev(phba
, mboxq
);
4601 mqe
= &mboxq
->u
.mqe
;
4602 mqe
->un
.read_rev
.vpd_paddr_high
= putPaddrHigh(dmabuf
->phys
);
4603 mqe
->un
.read_rev
.vpd_paddr_low
= putPaddrLow(dmabuf
->phys
);
4604 mqe
->un
.read_rev
.word1
&= 0x0000FFFF;
4605 bf_set(lpfc_mbx_rd_rev_vpd
, &mqe
->un
.read_rev
, 1);
4606 bf_set(lpfc_mbx_rd_rev_avail_len
, &mqe
->un
.read_rev
, dma_size
);
4608 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4610 dma_free_coherent(&phba
->pcidev
->dev
, dma_size
,
4611 dmabuf
->virt
, dmabuf
->phys
);
4617 * The available vpd length cannot be bigger than the
4618 * DMA buffer passed to the port. Catch the less than
4619 * case and update the caller's size.
4621 if (mqe
->un
.read_rev
.avail_vpd_len
< *vpd_size
)
4622 *vpd_size
= mqe
->un
.read_rev
.avail_vpd_len
;
4624 memcpy(vpd
, dmabuf
->virt
, *vpd_size
);
4626 dma_free_coherent(&phba
->pcidev
->dev
, dma_size
,
4627 dmabuf
->virt
, dmabuf
->phys
);
4633 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
4634 * @phba: pointer to lpfc hba data structure.
4636 * This routine is called to explicitly arm the SLI4 device's completion and
4640 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba
*phba
)
4644 lpfc_sli4_cq_release(phba
->sli4_hba
.mbx_cq
, LPFC_QUEUE_REARM
);
4645 lpfc_sli4_cq_release(phba
->sli4_hba
.els_cq
, LPFC_QUEUE_REARM
);
4646 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_eq_count
; fcp_eqidx
++)
4647 lpfc_sli4_cq_release(phba
->sli4_hba
.fcp_cq
[fcp_eqidx
],
4649 lpfc_sli4_eq_release(phba
->sli4_hba
.sp_eq
, LPFC_QUEUE_REARM
);
4650 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_eq_count
; fcp_eqidx
++)
4651 lpfc_sli4_eq_release(phba
->sli4_hba
.fp_eq
[fcp_eqidx
],
4656 * lpfc_sli4_hba_setup - SLI4 device intialization PCI function
4657 * @phba: Pointer to HBA context object.
4659 * This function is the main SLI4 device intialization PCI function. This
4660 * function is called by the HBA intialization code, HBA reset code and
4661 * HBA error attention handler code. Caller is not required to hold any
4665 lpfc_sli4_hba_setup(struct lpfc_hba
*phba
)
4668 LPFC_MBOXQ_t
*mboxq
;
4669 struct lpfc_mqe
*mqe
;
4672 uint32_t ftr_rsp
= 0;
4673 struct Scsi_Host
*shost
= lpfc_shost_from_vport(phba
->pport
);
4674 struct lpfc_vport
*vport
= phba
->pport
;
4675 struct lpfc_dmabuf
*mp
;
4678 * TODO: Why does this routine execute these task in a different
4681 /* Perform a PCI function reset to start from clean */
4682 rc
= lpfc_pci_function_reset(phba
);
4686 /* Check the HBA Host Status Register for readyness */
4687 rc
= lpfc_sli4_post_status_check(phba
);
4691 spin_lock_irq(&phba
->hbalock
);
4692 phba
->sli
.sli_flag
|= LPFC_SLI_ACTIVE
;
4693 spin_unlock_irq(&phba
->hbalock
);
4697 * Allocate a single mailbox container for initializing the
4700 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4705 * Continue initialization with default values even if driver failed
4706 * to read FCoE param config regions
4708 if (lpfc_sli4_read_fcoe_params(phba
, mboxq
))
4709 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_INIT
,
4710 "2570 Failed to read FCoE parameters\n");
4712 /* Issue READ_REV to collect vpd and FW information. */
4713 vpd_size
= SLI4_PAGE_SIZE
;
4714 vpd
= kzalloc(vpd_size
, GFP_KERNEL
);
4720 rc
= lpfc_sli4_read_rev(phba
, mboxq
, vpd
, &vpd_size
);
4725 mqe
= &mboxq
->u
.mqe
;
4726 phba
->sli_rev
= bf_get(lpfc_mbx_rd_rev_sli_lvl
, &mqe
->un
.read_rev
);
4727 if (bf_get(lpfc_mbx_rd_rev_fcoe
, &mqe
->un
.read_rev
))
4728 phba
->hba_flag
|= HBA_FCOE_MODE
;
4730 phba
->hba_flag
&= ~HBA_FCOE_MODE
;
4732 if (bf_get(lpfc_mbx_rd_rev_cee_ver
, &mqe
->un
.read_rev
) ==
4734 phba
->hba_flag
|= HBA_FIP_SUPPORT
;
4736 phba
->hba_flag
&= ~HBA_FIP_SUPPORT
;
4738 if (phba
->sli_rev
!= LPFC_SLI_REV4
||
4739 !(phba
->hba_flag
& HBA_FCOE_MODE
)) {
4740 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4741 "0376 READ_REV Error. SLI Level %d "
4742 "FCoE enabled %d\n",
4743 phba
->sli_rev
, phba
->hba_flag
& HBA_FCOE_MODE
);
4749 * Evaluate the read rev and vpd data. Populate the driver
4750 * state with the results. If this routine fails, the failure
4751 * is not fatal as the driver will use generic values.
4753 rc
= lpfc_parse_vpd(phba
, vpd
, vpd_size
);
4754 if (unlikely(!rc
)) {
4755 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4756 "0377 Error %d parsing vpd. "
4757 "Using defaults.\n", rc
);
4762 /* Save information as VPD data */
4763 phba
->vpd
.rev
.biuRev
= mqe
->un
.read_rev
.first_hw_rev
;
4764 phba
->vpd
.rev
.smRev
= mqe
->un
.read_rev
.second_hw_rev
;
4765 phba
->vpd
.rev
.endecRev
= mqe
->un
.read_rev
.third_hw_rev
;
4766 phba
->vpd
.rev
.fcphHigh
= bf_get(lpfc_mbx_rd_rev_fcph_high
,
4768 phba
->vpd
.rev
.fcphLow
= bf_get(lpfc_mbx_rd_rev_fcph_low
,
4770 phba
->vpd
.rev
.feaLevelHigh
= bf_get(lpfc_mbx_rd_rev_ftr_lvl_high
,
4772 phba
->vpd
.rev
.feaLevelLow
= bf_get(lpfc_mbx_rd_rev_ftr_lvl_low
,
4774 phba
->vpd
.rev
.sli1FwRev
= mqe
->un
.read_rev
.fw_id_rev
;
4775 memcpy(phba
->vpd
.rev
.sli1FwName
, mqe
->un
.read_rev
.fw_name
, 16);
4776 phba
->vpd
.rev
.sli2FwRev
= mqe
->un
.read_rev
.ulp_fw_id_rev
;
4777 memcpy(phba
->vpd
.rev
.sli2FwName
, mqe
->un
.read_rev
.ulp_fw_name
, 16);
4778 phba
->vpd
.rev
.opFwRev
= mqe
->un
.read_rev
.fw_id_rev
;
4779 memcpy(phba
->vpd
.rev
.opFwName
, mqe
->un
.read_rev
.fw_name
, 16);
4780 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
4781 "(%d):0380 READ_REV Status x%x "
4782 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
4783 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
4784 bf_get(lpfc_mqe_status
, mqe
),
4785 phba
->vpd
.rev
.opFwName
,
4786 phba
->vpd
.rev
.fcphHigh
, phba
->vpd
.rev
.fcphLow
,
4787 phba
->vpd
.rev
.feaLevelHigh
, phba
->vpd
.rev
.feaLevelLow
);
4790 * Discover the port's supported feature set and match it against the
4793 lpfc_request_features(phba
, mboxq
);
4794 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4801 * The port must support FCP initiator mode as this is the
4802 * only mode running in the host.
4804 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi
, &mqe
->un
.req_ftrs
))) {
4805 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_SLI
,
4806 "0378 No support for fcpi mode.\n");
4809 if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh
, &mqe
->un
.req_ftrs
))
4810 phba
->sli3_options
|= LPFC_SLI4_PERFH_ENABLED
;
4812 phba
->sli3_options
&= ~LPFC_SLI4_PERFH_ENABLED
;
4814 * If the port cannot support the host's requested features
4815 * then turn off the global config parameters to disable the
4816 * feature in the driver. This is not a fatal error.
4818 if ((phba
->cfg_enable_bg
) &&
4819 !(bf_get(lpfc_mbx_rq_ftr_rsp_dif
, &mqe
->un
.req_ftrs
)))
4822 if (phba
->max_vpi
&& phba
->cfg_enable_npiv
&&
4823 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv
, &mqe
->un
.req_ftrs
)))
4827 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_SLI
,
4828 "0379 Feature Mismatch Data: x%08x %08x "
4829 "x%x x%x x%x\n", mqe
->un
.req_ftrs
.word2
,
4830 mqe
->un
.req_ftrs
.word3
, phba
->cfg_enable_bg
,
4831 phba
->cfg_enable_npiv
, phba
->max_vpi
);
4832 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif
, &mqe
->un
.req_ftrs
)))
4833 phba
->cfg_enable_bg
= 0;
4834 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv
, &mqe
->un
.req_ftrs
)))
4835 phba
->cfg_enable_npiv
= 0;
4838 /* These SLI3 features are assumed in SLI4 */
4839 spin_lock_irq(&phba
->hbalock
);
4840 phba
->sli3_options
|= (LPFC_SLI3_NPIV_ENABLED
| LPFC_SLI3_HBQ_ENABLED
);
4841 spin_unlock_irq(&phba
->hbalock
);
4843 /* Read the port's service parameters. */
4844 rc
= lpfc_read_sparam(phba
, mboxq
, vport
->vpi
);
4846 phba
->link_state
= LPFC_HBA_ERROR
;
4851 mboxq
->vport
= vport
;
4852 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4853 mp
= (struct lpfc_dmabuf
*) mboxq
->context1
;
4854 if (rc
== MBX_SUCCESS
) {
4855 memcpy(&vport
->fc_sparam
, mp
->virt
, sizeof(struct serv_parm
));
4860 * This memory was allocated by the lpfc_read_sparam routine. Release
4861 * it to the mbuf pool.
4863 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
4865 mboxq
->context1
= NULL
;
4867 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4868 "0382 READ_SPARAM command failed "
4869 "status %d, mbxStatus x%x\n",
4870 rc
, bf_get(lpfc_mqe_status
, mqe
));
4871 phba
->link_state
= LPFC_HBA_ERROR
;
4876 if (phba
->cfg_soft_wwnn
)
4877 u64_to_wwn(phba
->cfg_soft_wwnn
,
4878 vport
->fc_sparam
.nodeName
.u
.wwn
);
4879 if (phba
->cfg_soft_wwpn
)
4880 u64_to_wwn(phba
->cfg_soft_wwpn
,
4881 vport
->fc_sparam
.portName
.u
.wwn
);
4882 memcpy(&vport
->fc_nodename
, &vport
->fc_sparam
.nodeName
,
4883 sizeof(struct lpfc_name
));
4884 memcpy(&vport
->fc_portname
, &vport
->fc_sparam
.portName
,
4885 sizeof(struct lpfc_name
));
4887 /* Update the fc_host data structures with new wwn. */
4888 fc_host_node_name(shost
) = wwn_to_u64(vport
->fc_nodename
.u
.wwn
);
4889 fc_host_port_name(shost
) = wwn_to_u64(vport
->fc_portname
.u
.wwn
);
4891 /* Register SGL pool to the device using non-embedded mailbox command */
4892 rc
= lpfc_sli4_post_sgl_list(phba
);
4894 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4895 "0582 Error %d during sgl post operation\n",
4901 /* Register SCSI SGL pool to the device */
4902 rc
= lpfc_sli4_repost_scsi_sgl_list(phba
);
4904 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_SLI
,
4905 "0383 Error %d during scsi sgl post "
4907 /* Some Scsi buffers were moved to the abort scsi list */
4908 /* A pci function reset will repost them */
4913 /* Post the rpi header region to the device. */
4914 rc
= lpfc_sli4_post_all_rpi_hdrs(phba
);
4916 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4917 "0393 Error %d during rpi post operation\n",
4923 /* Set up all the queues to the device */
4924 rc
= lpfc_sli4_queue_setup(phba
);
4926 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4927 "0381 Error %d during queue setup.\n ", rc
);
4928 goto out_stop_timers
;
4931 /* Arm the CQs and then EQs on device */
4932 lpfc_sli4_arm_cqeq_intr(phba
);
4934 /* Indicate device interrupt mode */
4935 phba
->sli4_hba
.intr_enable
= 1;
4937 /* Allow asynchronous mailbox command to go through */
4938 spin_lock_irq(&phba
->hbalock
);
4939 phba
->sli
.sli_flag
&= ~LPFC_SLI_ASYNC_MBX_BLK
;
4940 spin_unlock_irq(&phba
->hbalock
);
4942 /* Post receive buffers to the device */
4943 lpfc_sli4_rb_setup(phba
);
4945 /* Reset HBA FCF states after HBA reset */
4946 phba
->fcf
.fcf_flag
= 0;
4947 phba
->fcf
.current_rec
.flag
= 0;
4949 /* Start the ELS watchdog timer */
4950 mod_timer(&vport
->els_tmofunc
,
4951 jiffies
+ HZ
* (phba
->fc_ratov
* 2));
4953 /* Start heart beat timer */
4954 mod_timer(&phba
->hb_tmofunc
,
4955 jiffies
+ HZ
* LPFC_HB_MBOX_INTERVAL
);
4956 phba
->hb_outstanding
= 0;
4957 phba
->last_completion_time
= jiffies
;
4959 /* Start error attention (ERATT) polling timer */
4960 mod_timer(&phba
->eratt_poll
, jiffies
+ HZ
* LPFC_ERATT_POLL_INTERVAL
);
4962 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4963 if (phba
->cfg_aer_support
== 1 && !(phba
->hba_flag
& HBA_AER_ENABLED
)) {
4964 rc
= pci_enable_pcie_error_reporting(phba
->pcidev
);
4966 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4967 "2829 This device supports "
4968 "Advanced Error Reporting (AER)\n");
4969 spin_lock_irq(&phba
->hbalock
);
4970 phba
->hba_flag
|= HBA_AER_ENABLED
;
4971 spin_unlock_irq(&phba
->hbalock
);
4973 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4974 "2830 This device does not support "
4975 "Advanced Error Reporting (AER)\n");
4976 phba
->cfg_aer_support
= 0;
4980 if (!(phba
->hba_flag
& HBA_FCOE_MODE
)) {
4982 * The FC Port needs to register FCFI (index 0)
4984 lpfc_reg_fcfi(phba
, mboxq
);
4985 mboxq
->vport
= phba
->pport
;
4986 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4987 if (rc
== MBX_SUCCESS
)
4990 goto out_unset_queue
;
4993 * The port is ready, set the host's link state to LINK_DOWN
4994 * in preparation for link interrupts.
4996 spin_lock_irq(&phba
->hbalock
);
4997 phba
->link_state
= LPFC_LINK_DOWN
;
4998 spin_unlock_irq(&phba
->hbalock
);
4999 if (phba
->cfg_suppress_link_up
== LPFC_INITIALIZE_LINK
)
5000 rc
= phba
->lpfc_hba_init_link(phba
, MBX_NOWAIT
);
5002 /* Unset all the queues set up in this routine when error out */
5004 lpfc_sli4_queue_unset(phba
);
5007 lpfc_stop_hba_timers(phba
);
5009 mempool_free(mboxq
, phba
->mbox_mem_pool
);
5014 * lpfc_mbox_timeout - Timeout call back function for mbox timer
5015 * @ptr: context object - pointer to hba structure.
5017 * This is the callback function for mailbox timer. The mailbox
5018 * timer is armed when a new mailbox command is issued and the timer
5019 * is deleted when the mailbox complete. The function is called by
5020 * the kernel timer code when a mailbox does not complete within
5021 * expected time. This function wakes up the worker thread to
5022 * process the mailbox timeout and returns. All the processing is
5023 * done by the worker thread function lpfc_mbox_timeout_handler.
5026 lpfc_mbox_timeout(unsigned long ptr
)
5028 struct lpfc_hba
*phba
= (struct lpfc_hba
*) ptr
;
5029 unsigned long iflag
;
5030 uint32_t tmo_posted
;
5032 spin_lock_irqsave(&phba
->pport
->work_port_lock
, iflag
);
5033 tmo_posted
= phba
->pport
->work_port_events
& WORKER_MBOX_TMO
;
5035 phba
->pport
->work_port_events
|= WORKER_MBOX_TMO
;
5036 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, iflag
);
5039 lpfc_worker_wake_up(phba
);
5045 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
5046 * @phba: Pointer to HBA context object.
5048 * This function is called from worker thread when a mailbox command times out.
5049 * The caller is not required to hold any locks. This function will reset the
5050 * HBA and recover all the pending commands.
5053 lpfc_mbox_timeout_handler(struct lpfc_hba
*phba
)
5055 LPFC_MBOXQ_t
*pmbox
= phba
->sli
.mbox_active
;
5056 MAILBOX_t
*mb
= &pmbox
->u
.mb
;
5057 struct lpfc_sli
*psli
= &phba
->sli
;
5058 struct lpfc_sli_ring
*pring
;
5060 /* Check the pmbox pointer first. There is a race condition
5061 * between the mbox timeout handler getting executed in the
5062 * worklist and the mailbox actually completing. When this
5063 * race condition occurs, the mbox_active will be NULL.
5065 spin_lock_irq(&phba
->hbalock
);
5066 if (pmbox
== NULL
) {
5067 lpfc_printf_log(phba
, KERN_WARNING
,
5069 "0353 Active Mailbox cleared - mailbox timeout "
5071 spin_unlock_irq(&phba
->hbalock
);
5075 /* Mbox cmd <mbxCommand> timeout */
5076 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5077 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
5079 phba
->pport
->port_state
,
5081 phba
->sli
.mbox_active
);
5082 spin_unlock_irq(&phba
->hbalock
);
5084 /* Setting state unknown so lpfc_sli_abort_iocb_ring
5085 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
5086 * it to fail all oustanding SCSI IO.
5088 spin_lock_irq(&phba
->pport
->work_port_lock
);
5089 phba
->pport
->work_port_events
&= ~WORKER_MBOX_TMO
;
5090 spin_unlock_irq(&phba
->pport
->work_port_lock
);
5091 spin_lock_irq(&phba
->hbalock
);
5092 phba
->link_state
= LPFC_LINK_UNKNOWN
;
5093 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
5094 spin_unlock_irq(&phba
->hbalock
);
5096 pring
= &psli
->ring
[psli
->fcp_ring
];
5097 lpfc_sli_abort_iocb_ring(phba
, pring
);
5099 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5100 "0345 Resetting board due to mailbox timeout\n");
5102 /* Reset the HBA device */
5103 lpfc_reset_hba(phba
);
5107 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
5108 * @phba: Pointer to HBA context object.
5109 * @pmbox: Pointer to mailbox object.
5110 * @flag: Flag indicating how the mailbox need to be processed.
5112 * This function is called by discovery code and HBA management code
5113 * to submit a mailbox command to firmware with SLI-3 interface spec. This
5114 * function gets the hbalock to protect the data structures.
5115 * The mailbox command can be submitted in polling mode, in which case
5116 * this function will wait in a polling loop for the completion of the
5118 * If the mailbox is submitted in no_wait mode (not polling) the
5119 * function will submit the command and returns immediately without waiting
5120 * for the mailbox completion. The no_wait is supported only when HBA
5121 * is in SLI2/SLI3 mode - interrupts are enabled.
5122 * The SLI interface allows only one mailbox pending at a time. If the
5123 * mailbox is issued in polling mode and there is already a mailbox
5124 * pending, then the function will return an error. If the mailbox is issued
5125 * in NO_WAIT mode and there is a mailbox pending already, the function
5126 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
5127 * The sli layer owns the mailbox object until the completion of mailbox
5128 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
5129 * return codes the caller owns the mailbox command after the return of
5133 lpfc_sli_issue_mbox_s3(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmbox
,
5137 struct lpfc_sli
*psli
= &phba
->sli
;
5138 uint32_t status
, evtctr
;
5141 unsigned long timeout
;
5142 unsigned long drvr_flag
= 0;
5143 uint32_t word0
, ldata
;
5144 void __iomem
*to_slim
;
5145 int processing_queue
= 0;
5147 spin_lock_irqsave(&phba
->hbalock
, drvr_flag
);
5149 phba
->sli
.sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
5150 /* processing mbox queue from intr_handler */
5151 if (unlikely(psli
->sli_flag
& LPFC_SLI_ASYNC_MBX_BLK
)) {
5152 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
5155 processing_queue
= 1;
5156 pmbox
= lpfc_mbox_get(phba
);
5158 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
5163 if (pmbox
->mbox_cmpl
&& pmbox
->mbox_cmpl
!= lpfc_sli_def_mbox_cmpl
&&
5164 pmbox
->mbox_cmpl
!= lpfc_sli_wake_mbox_wait
) {
5166 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
5167 lpfc_printf_log(phba
, KERN_ERR
,
5168 LOG_MBOX
| LOG_VPORT
,
5169 "1806 Mbox x%x failed. No vport\n",
5170 pmbox
->u
.mb
.mbxCommand
);
5172 goto out_not_finished
;
5176 /* If the PCI channel is in offline state, do not post mbox. */
5177 if (unlikely(pci_channel_offline(phba
->pcidev
))) {
5178 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
5179 goto out_not_finished
;
5182 /* If HBA has a deferred error attention, fail the iocb. */
5183 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
5184 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
5185 goto out_not_finished
;
5191 status
= MBX_SUCCESS
;
5193 if (phba
->link_state
== LPFC_HBA_ERROR
) {
5194 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
5196 /* Mbox command <mbxCommand> cannot issue */
5197 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5198 "(%d):0311 Mailbox command x%x cannot "
5199 "issue Data: x%x x%x\n",
5200 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
5201 pmbox
->u
.mb
.mbxCommand
, psli
->sli_flag
, flag
);
5202 goto out_not_finished
;
5205 if (mb
->mbxCommand
!= MBX_KILL_BOARD
&& flag
& MBX_NOWAIT
&&
5206 !(readl(phba
->HCregaddr
) & HC_MBINT_ENA
)) {
5207 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
5208 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5209 "(%d):2528 Mailbox command x%x cannot "
5210 "issue Data: x%x x%x\n",
5211 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
5212 pmbox
->u
.mb
.mbxCommand
, psli
->sli_flag
, flag
);
5213 goto out_not_finished
;
5216 if (psli
->sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
5217 /* Polling for a mbox command when another one is already active
5218 * is not allowed in SLI. Also, the driver must have established
5219 * SLI2 mode to queue and process multiple mbox commands.
5222 if (flag
& MBX_POLL
) {
5223 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
5225 /* Mbox command <mbxCommand> cannot issue */
5226 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5227 "(%d):2529 Mailbox command x%x "
5228 "cannot issue Data: x%x x%x\n",
5229 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
5230 pmbox
->u
.mb
.mbxCommand
,
5231 psli
->sli_flag
, flag
);
5232 goto out_not_finished
;
5235 if (!(psli
->sli_flag
& LPFC_SLI_ACTIVE
)) {
5236 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
5237 /* Mbox command <mbxCommand> cannot issue */
5238 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5239 "(%d):2530 Mailbox command x%x "
5240 "cannot issue Data: x%x x%x\n",
5241 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
5242 pmbox
->u
.mb
.mbxCommand
,
5243 psli
->sli_flag
, flag
);
5244 goto out_not_finished
;
5247 /* Another mailbox command is still being processed, queue this
5248 * command to be processed later.
5250 lpfc_mbox_put(phba
, pmbox
);
5252 /* Mbox cmd issue - BUSY */
5253 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
5254 "(%d):0308 Mbox cmd issue - BUSY Data: "
5255 "x%x x%x x%x x%x\n",
5256 pmbox
->vport
? pmbox
->vport
->vpi
: 0xffffff,
5257 mb
->mbxCommand
, phba
->pport
->port_state
,
5258 psli
->sli_flag
, flag
);
5260 psli
->slistat
.mbox_busy
++;
5261 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
5264 lpfc_debugfs_disc_trc(pmbox
->vport
,
5265 LPFC_DISC_TRC_MBOX_VPORT
,
5266 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
5267 (uint32_t)mb
->mbxCommand
,
5268 mb
->un
.varWords
[0], mb
->un
.varWords
[1]);
5271 lpfc_debugfs_disc_trc(phba
->pport
,
5273 "MBOX Bsy: cmd:x%x mb:x%x x%x",
5274 (uint32_t)mb
->mbxCommand
,
5275 mb
->un
.varWords
[0], mb
->un
.varWords
[1]);
5281 psli
->sli_flag
|= LPFC_SLI_MBOX_ACTIVE
;
5283 /* If we are not polling, we MUST be in SLI2 mode */
5284 if (flag
!= MBX_POLL
) {
5285 if (!(psli
->sli_flag
& LPFC_SLI_ACTIVE
) &&
5286 (mb
->mbxCommand
!= MBX_KILL_BOARD
)) {
5287 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
5288 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
5289 /* Mbox command <mbxCommand> cannot issue */
5290 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5291 "(%d):2531 Mailbox command x%x "
5292 "cannot issue Data: x%x x%x\n",
5293 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
5294 pmbox
->u
.mb
.mbxCommand
,
5295 psli
->sli_flag
, flag
);
5296 goto out_not_finished
;
5298 /* timeout active mbox command */
5299 mod_timer(&psli
->mbox_tmo
, (jiffies
+
5300 (HZ
* lpfc_mbox_tmo_val(phba
, mb
->mbxCommand
))));
5303 /* Mailbox cmd <cmd> issue */
5304 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
5305 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
5307 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
5308 mb
->mbxCommand
, phba
->pport
->port_state
,
5309 psli
->sli_flag
, flag
);
5311 if (mb
->mbxCommand
!= MBX_HEARTBEAT
) {
5313 lpfc_debugfs_disc_trc(pmbox
->vport
,
5314 LPFC_DISC_TRC_MBOX_VPORT
,
5315 "MBOX Send vport: cmd:x%x mb:x%x x%x",
5316 (uint32_t)mb
->mbxCommand
,
5317 mb
->un
.varWords
[0], mb
->un
.varWords
[1]);
5320 lpfc_debugfs_disc_trc(phba
->pport
,
5322 "MBOX Send: cmd:x%x mb:x%x x%x",
5323 (uint32_t)mb
->mbxCommand
,
5324 mb
->un
.varWords
[0], mb
->un
.varWords
[1]);
5328 psli
->slistat
.mbox_cmd
++;
5329 evtctr
= psli
->slistat
.mbox_event
;
5331 /* next set own bit for the adapter and copy over command word */
5332 mb
->mbxOwner
= OWN_CHIP
;
5334 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
5335 /* Populate mbox extension offset word. */
5336 if (pmbox
->in_ext_byte_len
|| pmbox
->out_ext_byte_len
) {
5337 *(((uint32_t *)mb
) + pmbox
->mbox_offset_word
)
5338 = (uint8_t *)phba
->mbox_ext
5339 - (uint8_t *)phba
->mbox
;
5342 /* Copy the mailbox extension data */
5343 if (pmbox
->in_ext_byte_len
&& pmbox
->context2
) {
5344 lpfc_sli_pcimem_bcopy(pmbox
->context2
,
5345 (uint8_t *)phba
->mbox_ext
,
5346 pmbox
->in_ext_byte_len
);
5348 /* Copy command data to host SLIM area */
5349 lpfc_sli_pcimem_bcopy(mb
, phba
->mbox
, MAILBOX_CMD_SIZE
);
5351 /* Populate mbox extension offset word. */
5352 if (pmbox
->in_ext_byte_len
|| pmbox
->out_ext_byte_len
)
5353 *(((uint32_t *)mb
) + pmbox
->mbox_offset_word
)
5354 = MAILBOX_HBA_EXT_OFFSET
;
5356 /* Copy the mailbox extension data */
5357 if (pmbox
->in_ext_byte_len
&& pmbox
->context2
) {
5358 lpfc_memcpy_to_slim(phba
->MBslimaddr
+
5359 MAILBOX_HBA_EXT_OFFSET
,
5360 pmbox
->context2
, pmbox
->in_ext_byte_len
);
5363 if (mb
->mbxCommand
== MBX_CONFIG_PORT
) {
5364 /* copy command data into host mbox for cmpl */
5365 lpfc_sli_pcimem_bcopy(mb
, phba
->mbox
, MAILBOX_CMD_SIZE
);
5368 /* First copy mbox command data to HBA SLIM, skip past first
5370 to_slim
= phba
->MBslimaddr
+ sizeof (uint32_t);
5371 lpfc_memcpy_to_slim(to_slim
, &mb
->un
.varWords
[0],
5372 MAILBOX_CMD_SIZE
- sizeof (uint32_t));
5374 /* Next copy over first word, with mbxOwner set */
5375 ldata
= *((uint32_t *)mb
);
5376 to_slim
= phba
->MBslimaddr
;
5377 writel(ldata
, to_slim
);
5378 readl(to_slim
); /* flush */
5380 if (mb
->mbxCommand
== MBX_CONFIG_PORT
) {
5381 /* switch over to host mailbox */
5382 psli
->sli_flag
|= LPFC_SLI_ACTIVE
;
5390 /* Set up reference to mailbox command */
5391 psli
->mbox_active
= pmbox
;
5392 /* Interrupt board to do it */
5393 writel(CA_MBATT
, phba
->CAregaddr
);
5394 readl(phba
->CAregaddr
); /* flush */
5395 /* Don't wait for it to finish, just return */
5399 /* Set up null reference to mailbox command */
5400 psli
->mbox_active
= NULL
;
5401 /* Interrupt board to do it */
5402 writel(CA_MBATT
, phba
->CAregaddr
);
5403 readl(phba
->CAregaddr
); /* flush */
5405 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
5406 /* First read mbox status word */
5407 word0
= *((uint32_t *)phba
->mbox
);
5408 word0
= le32_to_cpu(word0
);
5410 /* First read mbox status word */
5411 word0
= readl(phba
->MBslimaddr
);
5414 /* Read the HBA Host Attention Register */
5415 ha_copy
= readl(phba
->HAregaddr
);
5416 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
,
5420 /* Wait for command to complete */
5421 while (((word0
& OWN_CHIP
) == OWN_CHIP
) ||
5422 (!(ha_copy
& HA_MBATT
) &&
5423 (phba
->link_state
> LPFC_WARM_START
))) {
5424 if (time_after(jiffies
, timeout
)) {
5425 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
5426 spin_unlock_irqrestore(&phba
->hbalock
,
5428 goto out_not_finished
;
5431 /* Check if we took a mbox interrupt while we were
5433 if (((word0
& OWN_CHIP
) != OWN_CHIP
)
5434 && (evtctr
!= psli
->slistat
.mbox_event
))
5438 spin_unlock_irqrestore(&phba
->hbalock
,
5441 spin_lock_irqsave(&phba
->hbalock
, drvr_flag
);
5444 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
5445 /* First copy command data */
5446 word0
= *((uint32_t *)phba
->mbox
);
5447 word0
= le32_to_cpu(word0
);
5448 if (mb
->mbxCommand
== MBX_CONFIG_PORT
) {
5451 /* Check real SLIM for any errors */
5452 slimword0
= readl(phba
->MBslimaddr
);
5453 slimmb
= (MAILBOX_t
*) & slimword0
;
5454 if (((slimword0
& OWN_CHIP
) != OWN_CHIP
)
5455 && slimmb
->mbxStatus
) {
5462 /* First copy command data */
5463 word0
= readl(phba
->MBslimaddr
);
5465 /* Read the HBA Host Attention Register */
5466 ha_copy
= readl(phba
->HAregaddr
);
5469 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
5470 /* copy results back to user */
5471 lpfc_sli_pcimem_bcopy(phba
->mbox
, mb
, MAILBOX_CMD_SIZE
);
5472 /* Copy the mailbox extension data */
5473 if (pmbox
->out_ext_byte_len
&& pmbox
->context2
) {
5474 lpfc_sli_pcimem_bcopy(phba
->mbox_ext
,
5476 pmbox
->out_ext_byte_len
);
5479 /* First copy command data */
5480 lpfc_memcpy_from_slim(mb
, phba
->MBslimaddr
,
5482 /* Copy the mailbox extension data */
5483 if (pmbox
->out_ext_byte_len
&& pmbox
->context2
) {
5484 lpfc_memcpy_from_slim(pmbox
->context2
,
5486 MAILBOX_HBA_EXT_OFFSET
,
5487 pmbox
->out_ext_byte_len
);
5491 writel(HA_MBATT
, phba
->HAregaddr
);
5492 readl(phba
->HAregaddr
); /* flush */
5494 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
5495 status
= mb
->mbxStatus
;
5498 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
5502 if (processing_queue
) {
5503 pmbox
->u
.mb
.mbxStatus
= MBX_NOT_FINISHED
;
5504 lpfc_mbox_cmpl_put(phba
, pmbox
);
5506 return MBX_NOT_FINISHED
;
5510 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
5511 * @phba: Pointer to HBA context object.
5513 * The function blocks the posting of SLI4 asynchronous mailbox commands from
5514 * the driver internal pending mailbox queue. It will then try to wait out the
5515 * possible outstanding mailbox command before return.
5518 * 0 - the outstanding mailbox command completed; otherwise, the wait for
5519 * the outstanding mailbox command timed out.
5522 lpfc_sli4_async_mbox_block(struct lpfc_hba
*phba
)
5524 struct lpfc_sli
*psli
= &phba
->sli
;
5525 uint8_t actcmd
= MBX_HEARTBEAT
;
5527 unsigned long timeout
;
5529 /* Mark the asynchronous mailbox command posting as blocked */
5530 spin_lock_irq(&phba
->hbalock
);
5531 psli
->sli_flag
|= LPFC_SLI_ASYNC_MBX_BLK
;
5532 if (phba
->sli
.mbox_active
)
5533 actcmd
= phba
->sli
.mbox_active
->u
.mb
.mbxCommand
;
5534 spin_unlock_irq(&phba
->hbalock
);
5535 /* Determine how long we might wait for the active mailbox
5536 * command to be gracefully completed by firmware.
5538 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
, actcmd
) * 1000) +
5540 /* Wait for the outstnading mailbox command to complete */
5541 while (phba
->sli
.mbox_active
) {
5542 /* Check active mailbox complete status every 2ms */
5544 if (time_after(jiffies
, timeout
)) {
5545 /* Timeout, marked the outstanding cmd not complete */
5551 /* Can not cleanly block async mailbox command, fails it */
5553 spin_lock_irq(&phba
->hbalock
);
5554 psli
->sli_flag
&= ~LPFC_SLI_ASYNC_MBX_BLK
;
5555 spin_unlock_irq(&phba
->hbalock
);
5561 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
5562 * @phba: Pointer to HBA context object.
5564 * The function unblocks and resume posting of SLI4 asynchronous mailbox
5565 * commands from the driver internal pending mailbox queue. It makes sure
5566 * that there is no outstanding mailbox command before resuming posting
5567 * asynchronous mailbox commands. If, for any reason, there is outstanding
5568 * mailbox command, it will try to wait it out before resuming asynchronous
5569 * mailbox command posting.
5572 lpfc_sli4_async_mbox_unblock(struct lpfc_hba
*phba
)
5574 struct lpfc_sli
*psli
= &phba
->sli
;
5576 spin_lock_irq(&phba
->hbalock
);
5577 if (!(psli
->sli_flag
& LPFC_SLI_ASYNC_MBX_BLK
)) {
5578 /* Asynchronous mailbox posting is not blocked, do nothing */
5579 spin_unlock_irq(&phba
->hbalock
);
5583 /* Outstanding synchronous mailbox command is guaranteed to be done,
5584 * successful or timeout, after timing-out the outstanding mailbox
5585 * command shall always be removed, so just unblock posting async
5586 * mailbox command and resume
5588 psli
->sli_flag
&= ~LPFC_SLI_ASYNC_MBX_BLK
;
5589 spin_unlock_irq(&phba
->hbalock
);
5591 /* wake up worker thread to post asynchronlous mailbox command */
5592 lpfc_worker_wake_up(phba
);
5596 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
5597 * @phba: Pointer to HBA context object.
5598 * @mboxq: Pointer to mailbox object.
5600 * The function posts a mailbox to the port. The mailbox is expected
5601 * to be comletely filled in and ready for the port to operate on it.
5602 * This routine executes a synchronous completion operation on the
5603 * mailbox by polling for its completion.
5605 * The caller must not be holding any locks when calling this routine.
5608 * MBX_SUCCESS - mailbox posted successfully
5609 * Any of the MBX error values.
5612 lpfc_sli4_post_sync_mbox(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
5614 int rc
= MBX_SUCCESS
;
5615 unsigned long iflag
;
5617 uint32_t mcqe_status
;
5619 unsigned long timeout
;
5620 struct lpfc_sli
*psli
= &phba
->sli
;
5621 struct lpfc_mqe
*mb
= &mboxq
->u
.mqe
;
5622 struct lpfc_bmbx_create
*mbox_rgn
;
5623 struct dma_address
*dma_address
;
5624 struct lpfc_register bmbx_reg
;
5627 * Only one mailbox can be active to the bootstrap mailbox region
5628 * at a time and there is no queueing provided.
5630 spin_lock_irqsave(&phba
->hbalock
, iflag
);
5631 if (psli
->sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
5632 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
5633 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5634 "(%d):2532 Mailbox command x%x (x%x) "
5635 "cannot issue Data: x%x x%x\n",
5636 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5637 mboxq
->u
.mb
.mbxCommand
,
5638 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5639 psli
->sli_flag
, MBX_POLL
);
5640 return MBXERR_ERROR
;
5642 /* The server grabs the token and owns it until release */
5643 psli
->sli_flag
|= LPFC_SLI_MBOX_ACTIVE
;
5644 phba
->sli
.mbox_active
= mboxq
;
5645 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
5648 * Initialize the bootstrap memory region to avoid stale data areas
5649 * in the mailbox post. Then copy the caller's mailbox contents to
5650 * the bmbx mailbox region.
5652 mbx_cmnd
= bf_get(lpfc_mqe_command
, mb
);
5653 memset(phba
->sli4_hba
.bmbx
.avirt
, 0, sizeof(struct lpfc_bmbx_create
));
5654 lpfc_sli_pcimem_bcopy(mb
, phba
->sli4_hba
.bmbx
.avirt
,
5655 sizeof(struct lpfc_mqe
));
5657 /* Post the high mailbox dma address to the port and wait for ready. */
5658 dma_address
= &phba
->sli4_hba
.bmbx
.dma_address
;
5659 writel(dma_address
->addr_hi
, phba
->sli4_hba
.BMBXregaddr
);
5661 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
, mbx_cmnd
)
5664 bmbx_reg
.word0
= readl(phba
->sli4_hba
.BMBXregaddr
);
5665 db_ready
= bf_get(lpfc_bmbx_rdy
, &bmbx_reg
);
5669 if (time_after(jiffies
, timeout
)) {
5673 } while (!db_ready
);
5675 /* Post the low mailbox dma address to the port. */
5676 writel(dma_address
->addr_lo
, phba
->sli4_hba
.BMBXregaddr
);
5677 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
, mbx_cmnd
)
5680 bmbx_reg
.word0
= readl(phba
->sli4_hba
.BMBXregaddr
);
5681 db_ready
= bf_get(lpfc_bmbx_rdy
, &bmbx_reg
);
5685 if (time_after(jiffies
, timeout
)) {
5689 } while (!db_ready
);
5692 * Read the CQ to ensure the mailbox has completed.
5693 * If so, update the mailbox status so that the upper layers
5694 * can complete the request normally.
5696 lpfc_sli_pcimem_bcopy(phba
->sli4_hba
.bmbx
.avirt
, mb
,
5697 sizeof(struct lpfc_mqe
));
5698 mbox_rgn
= (struct lpfc_bmbx_create
*) phba
->sli4_hba
.bmbx
.avirt
;
5699 lpfc_sli_pcimem_bcopy(&mbox_rgn
->mcqe
, &mboxq
->mcqe
,
5700 sizeof(struct lpfc_mcqe
));
5701 mcqe_status
= bf_get(lpfc_mcqe_status
, &mbox_rgn
->mcqe
);
5703 /* Prefix the mailbox status with range x4000 to note SLI4 status. */
5704 if (mcqe_status
!= MB_CQE_STATUS_SUCCESS
) {
5705 bf_set(lpfc_mqe_status
, mb
, LPFC_MBX_ERROR_RANGE
| mcqe_status
);
5708 lpfc_sli4_swap_str(phba
, mboxq
);
5710 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
5711 "(%d):0356 Mailbox cmd x%x (x%x) Status x%x "
5712 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
5713 " x%x x%x CQ: x%x x%x x%x x%x\n",
5714 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5715 mbx_cmnd
, lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5716 bf_get(lpfc_mqe_status
, mb
),
5717 mb
->un
.mb_words
[0], mb
->un
.mb_words
[1],
5718 mb
->un
.mb_words
[2], mb
->un
.mb_words
[3],
5719 mb
->un
.mb_words
[4], mb
->un
.mb_words
[5],
5720 mb
->un
.mb_words
[6], mb
->un
.mb_words
[7],
5721 mb
->un
.mb_words
[8], mb
->un
.mb_words
[9],
5722 mb
->un
.mb_words
[10], mb
->un
.mb_words
[11],
5723 mb
->un
.mb_words
[12], mboxq
->mcqe
.word0
,
5724 mboxq
->mcqe
.mcqe_tag0
, mboxq
->mcqe
.mcqe_tag1
,
5725 mboxq
->mcqe
.trailer
);
5727 /* We are holding the token, no needed for lock when release */
5728 spin_lock_irqsave(&phba
->hbalock
, iflag
);
5729 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
5730 phba
->sli
.mbox_active
= NULL
;
5731 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
5736 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
5737 * @phba: Pointer to HBA context object.
5738 * @pmbox: Pointer to mailbox object.
5739 * @flag: Flag indicating how the mailbox need to be processed.
5741 * This function is called by discovery code and HBA management code to submit
5742 * a mailbox command to firmware with SLI-4 interface spec.
5744 * Return codes the caller owns the mailbox command after the return of the
5748 lpfc_sli_issue_mbox_s4(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
,
5751 struct lpfc_sli
*psli
= &phba
->sli
;
5752 unsigned long iflags
;
5755 rc
= lpfc_mbox_dev_check(phba
);
5757 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5758 "(%d):2544 Mailbox command x%x (x%x) "
5759 "cannot issue Data: x%x x%x\n",
5760 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5761 mboxq
->u
.mb
.mbxCommand
,
5762 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5763 psli
->sli_flag
, flag
);
5764 goto out_not_finished
;
5767 /* Detect polling mode and jump to a handler */
5768 if (!phba
->sli4_hba
.intr_enable
) {
5769 if (flag
== MBX_POLL
)
5770 rc
= lpfc_sli4_post_sync_mbox(phba
, mboxq
);
5773 if (rc
!= MBX_SUCCESS
)
5774 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5775 "(%d):2541 Mailbox command x%x "
5776 "(x%x) cannot issue Data: x%x x%x\n",
5777 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5778 mboxq
->u
.mb
.mbxCommand
,
5779 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5780 psli
->sli_flag
, flag
);
5782 } else if (flag
== MBX_POLL
) {
5783 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_SLI
,
5784 "(%d):2542 Try to issue mailbox command "
5785 "x%x (x%x) synchronously ahead of async"
5786 "mailbox command queue: x%x x%x\n",
5787 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5788 mboxq
->u
.mb
.mbxCommand
,
5789 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5790 psli
->sli_flag
, flag
);
5791 /* Try to block the asynchronous mailbox posting */
5792 rc
= lpfc_sli4_async_mbox_block(phba
);
5794 /* Successfully blocked, now issue sync mbox cmd */
5795 rc
= lpfc_sli4_post_sync_mbox(phba
, mboxq
);
5796 if (rc
!= MBX_SUCCESS
)
5797 lpfc_printf_log(phba
, KERN_ERR
,
5799 "(%d):2597 Mailbox command "
5800 "x%x (x%x) cannot issue "
5803 mboxq
->vport
->vpi
: 0,
5804 mboxq
->u
.mb
.mbxCommand
,
5805 lpfc_sli4_mbox_opcode_get(phba
,
5807 psli
->sli_flag
, flag
);
5808 /* Unblock the async mailbox posting afterward */
5809 lpfc_sli4_async_mbox_unblock(phba
);
5814 /* Now, interrupt mode asynchrous mailbox command */
5815 rc
= lpfc_mbox_cmd_check(phba
, mboxq
);
5817 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5818 "(%d):2543 Mailbox command x%x (x%x) "
5819 "cannot issue Data: x%x x%x\n",
5820 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5821 mboxq
->u
.mb
.mbxCommand
,
5822 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5823 psli
->sli_flag
, flag
);
5824 goto out_not_finished
;
5827 /* Put the mailbox command to the driver internal FIFO */
5828 psli
->slistat
.mbox_busy
++;
5829 spin_lock_irqsave(&phba
->hbalock
, iflags
);
5830 lpfc_mbox_put(phba
, mboxq
);
5831 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5832 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
5833 "(%d):0354 Mbox cmd issue - Enqueue Data: "
5834 "x%x (x%x) x%x x%x x%x\n",
5835 mboxq
->vport
? mboxq
->vport
->vpi
: 0xffffff,
5836 bf_get(lpfc_mqe_command
, &mboxq
->u
.mqe
),
5837 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5838 phba
->pport
->port_state
,
5839 psli
->sli_flag
, MBX_NOWAIT
);
5840 /* Wake up worker thread to transport mailbox command from head */
5841 lpfc_worker_wake_up(phba
);
5846 return MBX_NOT_FINISHED
;
5850 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
5851 * @phba: Pointer to HBA context object.
5853 * This function is called by worker thread to send a mailbox command to
5854 * SLI4 HBA firmware.
5858 lpfc_sli4_post_async_mbox(struct lpfc_hba
*phba
)
5860 struct lpfc_sli
*psli
= &phba
->sli
;
5861 LPFC_MBOXQ_t
*mboxq
;
5862 int rc
= MBX_SUCCESS
;
5863 unsigned long iflags
;
5864 struct lpfc_mqe
*mqe
;
5867 /* Check interrupt mode before post async mailbox command */
5868 if (unlikely(!phba
->sli4_hba
.intr_enable
))
5869 return MBX_NOT_FINISHED
;
5871 /* Check for mailbox command service token */
5872 spin_lock_irqsave(&phba
->hbalock
, iflags
);
5873 if (unlikely(psli
->sli_flag
& LPFC_SLI_ASYNC_MBX_BLK
)) {
5874 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5875 return MBX_NOT_FINISHED
;
5877 if (psli
->sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
5878 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5879 return MBX_NOT_FINISHED
;
5881 if (unlikely(phba
->sli
.mbox_active
)) {
5882 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5883 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5884 "0384 There is pending active mailbox cmd\n");
5885 return MBX_NOT_FINISHED
;
5887 /* Take the mailbox command service token */
5888 psli
->sli_flag
|= LPFC_SLI_MBOX_ACTIVE
;
5890 /* Get the next mailbox command from head of queue */
5891 mboxq
= lpfc_mbox_get(phba
);
5893 /* If no more mailbox command waiting for post, we're done */
5895 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
5896 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5899 phba
->sli
.mbox_active
= mboxq
;
5900 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5902 /* Check device readiness for posting mailbox command */
5903 rc
= lpfc_mbox_dev_check(phba
);
5905 /* Driver clean routine will clean up pending mailbox */
5906 goto out_not_finished
;
5908 /* Prepare the mbox command to be posted */
5909 mqe
= &mboxq
->u
.mqe
;
5910 mbx_cmnd
= bf_get(lpfc_mqe_command
, mqe
);
5912 /* Start timer for the mbox_tmo and log some mailbox post messages */
5913 mod_timer(&psli
->mbox_tmo
, (jiffies
+
5914 (HZ
* lpfc_mbox_tmo_val(phba
, mbx_cmnd
))));
5916 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
5917 "(%d):0355 Mailbox cmd x%x (x%x) issue Data: "
5919 mboxq
->vport
? mboxq
->vport
->vpi
: 0, mbx_cmnd
,
5920 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5921 phba
->pport
->port_state
, psli
->sli_flag
);
5923 if (mbx_cmnd
!= MBX_HEARTBEAT
) {
5925 lpfc_debugfs_disc_trc(mboxq
->vport
,
5926 LPFC_DISC_TRC_MBOX_VPORT
,
5927 "MBOX Send vport: cmd:x%x mb:x%x x%x",
5928 mbx_cmnd
, mqe
->un
.mb_words
[0],
5929 mqe
->un
.mb_words
[1]);
5931 lpfc_debugfs_disc_trc(phba
->pport
,
5933 "MBOX Send: cmd:x%x mb:x%x x%x",
5934 mbx_cmnd
, mqe
->un
.mb_words
[0],
5935 mqe
->un
.mb_words
[1]);
5938 psli
->slistat
.mbox_cmd
++;
5940 /* Post the mailbox command to the port */
5941 rc
= lpfc_sli4_mq_put(phba
->sli4_hba
.mbx_wq
, mqe
);
5942 if (rc
!= MBX_SUCCESS
) {
5943 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5944 "(%d):2533 Mailbox command x%x (x%x) "
5945 "cannot issue Data: x%x x%x\n",
5946 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5947 mboxq
->u
.mb
.mbxCommand
,
5948 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5949 psli
->sli_flag
, MBX_NOWAIT
);
5950 goto out_not_finished
;
5956 spin_lock_irqsave(&phba
->hbalock
, iflags
);
5957 mboxq
->u
.mb
.mbxStatus
= MBX_NOT_FINISHED
;
5958 __lpfc_mbox_cmpl_put(phba
, mboxq
);
5959 /* Release the token */
5960 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
5961 phba
->sli
.mbox_active
= NULL
;
5962 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5964 return MBX_NOT_FINISHED
;
5968 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
5969 * @phba: Pointer to HBA context object.
5970 * @pmbox: Pointer to mailbox object.
5971 * @flag: Flag indicating how the mailbox need to be processed.
5973 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
5974 * the API jump table function pointer from the lpfc_hba struct.
5976 * Return codes the caller owns the mailbox command after the return of the
5980 lpfc_sli_issue_mbox(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmbox
, uint32_t flag
)
5982 return phba
->lpfc_sli_issue_mbox(phba
, pmbox
, flag
);
5986 * lpfc_mbox_api_table_setup - Set up mbox api fucntion jump table
5987 * @phba: The hba struct for which this call is being executed.
5988 * @dev_grp: The HBA PCI-Device group number.
5990 * This routine sets up the mbox interface API function jump table in @phba
5992 * Returns: 0 - success, -ENODEV - failure.
5995 lpfc_mbox_api_table_setup(struct lpfc_hba
*phba
, uint8_t dev_grp
)
5999 case LPFC_PCI_DEV_LP
:
6000 phba
->lpfc_sli_issue_mbox
= lpfc_sli_issue_mbox_s3
;
6001 phba
->lpfc_sli_handle_slow_ring_event
=
6002 lpfc_sli_handle_slow_ring_event_s3
;
6003 phba
->lpfc_sli_hbq_to_firmware
= lpfc_sli_hbq_to_firmware_s3
;
6004 phba
->lpfc_sli_brdrestart
= lpfc_sli_brdrestart_s3
;
6005 phba
->lpfc_sli_brdready
= lpfc_sli_brdready_s3
;
6007 case LPFC_PCI_DEV_OC
:
6008 phba
->lpfc_sli_issue_mbox
= lpfc_sli_issue_mbox_s4
;
6009 phba
->lpfc_sli_handle_slow_ring_event
=
6010 lpfc_sli_handle_slow_ring_event_s4
;
6011 phba
->lpfc_sli_hbq_to_firmware
= lpfc_sli_hbq_to_firmware_s4
;
6012 phba
->lpfc_sli_brdrestart
= lpfc_sli_brdrestart_s4
;
6013 phba
->lpfc_sli_brdready
= lpfc_sli_brdready_s4
;
6016 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6017 "1420 Invalid HBA PCI-device group: 0x%x\n",
6026 * __lpfc_sli_ringtx_put - Add an iocb to the txq
6027 * @phba: Pointer to HBA context object.
6028 * @pring: Pointer to driver SLI ring object.
6029 * @piocb: Pointer to address of newly added command iocb.
6031 * This function is called with hbalock held to add a command
6032 * iocb to the txq when SLI layer cannot submit the command iocb
6036 __lpfc_sli_ringtx_put(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
6037 struct lpfc_iocbq
*piocb
)
6039 /* Insert the caller's iocb in the txq tail for later processing. */
6040 list_add_tail(&piocb
->list
, &pring
->txq
);
6045 * lpfc_sli_next_iocb - Get the next iocb in the txq
6046 * @phba: Pointer to HBA context object.
6047 * @pring: Pointer to driver SLI ring object.
6048 * @piocb: Pointer to address of newly added command iocb.
6050 * This function is called with hbalock held before a new
6051 * iocb is submitted to the firmware. This function checks
6052 * txq to flush the iocbs in txq to Firmware before
6053 * submitting new iocbs to the Firmware.
6054 * If there are iocbs in the txq which need to be submitted
6055 * to firmware, lpfc_sli_next_iocb returns the first element
6056 * of the txq after dequeuing it from txq.
6057 * If there is no iocb in the txq then the function will return
6058 * *piocb and *piocb is set to NULL. Caller needs to check
6059 * *piocb to find if there are more commands in the txq.
6061 static struct lpfc_iocbq
*
6062 lpfc_sli_next_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
6063 struct lpfc_iocbq
**piocb
)
6065 struct lpfc_iocbq
* nextiocb
;
6067 nextiocb
= lpfc_sli_ringtx_get(phba
, pring
);
6077 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
6078 * @phba: Pointer to HBA context object.
6079 * @ring_number: SLI ring number to issue iocb on.
6080 * @piocb: Pointer to command iocb.
6081 * @flag: Flag indicating if this command can be put into txq.
6083 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
6084 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
6085 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
6086 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
6087 * this function allows only iocbs for posting buffers. This function finds
6088 * next available slot in the command ring and posts the command to the
6089 * available slot and writes the port attention register to request HBA start
6090 * processing new iocb. If there is no slot available in the ring and
6091 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
6092 * the function returns IOCB_BUSY.
6094 * This function is called with hbalock held. The function will return success
6095 * after it successfully submit the iocb to firmware or after adding to the
6099 __lpfc_sli_issue_iocb_s3(struct lpfc_hba
*phba
, uint32_t ring_number
,
6100 struct lpfc_iocbq
*piocb
, uint32_t flag
)
6102 struct lpfc_iocbq
*nextiocb
;
6104 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[ring_number
];
6106 if (piocb
->iocb_cmpl
&& (!piocb
->vport
) &&
6107 (piocb
->iocb
.ulpCommand
!= CMD_ABORT_XRI_CN
) &&
6108 (piocb
->iocb
.ulpCommand
!= CMD_CLOSE_XRI_CN
)) {
6109 lpfc_printf_log(phba
, KERN_ERR
,
6110 LOG_SLI
| LOG_VPORT
,
6111 "1807 IOCB x%x failed. No vport\n",
6112 piocb
->iocb
.ulpCommand
);
6118 /* If the PCI channel is in offline state, do not post iocbs. */
6119 if (unlikely(pci_channel_offline(phba
->pcidev
)))
6122 /* If HBA has a deferred error attention, fail the iocb. */
6123 if (unlikely(phba
->hba_flag
& DEFER_ERATT
))
6127 * We should never get an IOCB if we are in a < LINK_DOWN state
6129 if (unlikely(phba
->link_state
< LPFC_LINK_DOWN
))
6133 * Check to see if we are blocking IOCB processing because of a
6134 * outstanding event.
6136 if (unlikely(pring
->flag
& LPFC_STOP_IOCB_EVENT
))
6139 if (unlikely(phba
->link_state
== LPFC_LINK_DOWN
)) {
6141 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
6142 * can be issued if the link is not up.
6144 switch (piocb
->iocb
.ulpCommand
) {
6145 case CMD_GEN_REQUEST64_CR
:
6146 case CMD_GEN_REQUEST64_CX
:
6147 if (!(phba
->sli
.sli_flag
& LPFC_MENLO_MAINT
) ||
6148 (piocb
->iocb
.un
.genreq64
.w5
.hcsw
.Rctl
!=
6149 FC_RCTL_DD_UNSOL_CMD
) ||
6150 (piocb
->iocb
.un
.genreq64
.w5
.hcsw
.Type
!=
6151 MENLO_TRANSPORT_TYPE
))
6155 case CMD_QUE_RING_BUF_CN
:
6156 case CMD_QUE_RING_BUF64_CN
:
6158 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
6159 * completion, iocb_cmpl MUST be 0.
6161 if (piocb
->iocb_cmpl
)
6162 piocb
->iocb_cmpl
= NULL
;
6164 case CMD_CREATE_XRI_CR
:
6165 case CMD_CLOSE_XRI_CN
:
6166 case CMD_CLOSE_XRI_CX
:
6173 * For FCP commands, we must be in a state where we can process link
6176 } else if (unlikely(pring
->ringno
== phba
->sli
.fcp_ring
&&
6177 !(phba
->sli
.sli_flag
& LPFC_PROCESS_LA
))) {
6181 while ((iocb
= lpfc_sli_next_iocb_slot(phba
, pring
)) &&
6182 (nextiocb
= lpfc_sli_next_iocb(phba
, pring
, &piocb
)))
6183 lpfc_sli_submit_iocb(phba
, pring
, iocb
, nextiocb
);
6186 lpfc_sli_update_ring(phba
, pring
);
6188 lpfc_sli_update_full_ring(phba
, pring
);
6191 return IOCB_SUCCESS
;
6196 pring
->stats
.iocb_cmd_delay
++;
6200 if (!(flag
& SLI_IOCB_RET_IOCB
)) {
6201 __lpfc_sli_ringtx_put(phba
, pring
, piocb
);
6202 return IOCB_SUCCESS
;
6209 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
6210 * @phba: Pointer to HBA context object.
6211 * @piocb: Pointer to command iocb.
6212 * @sglq: Pointer to the scatter gather queue object.
6214 * This routine converts the bpl or bde that is in the IOCB
6215 * to a sgl list for the sli4 hardware. The physical address
6216 * of the bpl/bde is converted back to a virtual address.
6217 * If the IOCB contains a BPL then the list of BDE's is
6218 * converted to sli4_sge's. If the IOCB contains a single
6219 * BDE then it is converted to a single sli_sge.
6220 * The IOCB is still in cpu endianess so the contents of
6221 * the bpl can be used without byte swapping.
6223 * Returns valid XRI = Success, NO_XRI = Failure.
6226 lpfc_sli4_bpl2sgl(struct lpfc_hba
*phba
, struct lpfc_iocbq
*piocbq
,
6227 struct lpfc_sglq
*sglq
)
6229 uint16_t xritag
= NO_XRI
;
6230 struct ulp_bde64
*bpl
= NULL
;
6231 struct ulp_bde64 bde
;
6232 struct sli4_sge
*sgl
= NULL
;
6236 uint32_t offset
= 0; /* accumulated offset in the sg request list */
6237 int inbound
= 0; /* number of sg reply entries inbound from firmware */
6239 if (!piocbq
|| !sglq
)
6242 sgl
= (struct sli4_sge
*)sglq
->sgl
;
6243 icmd
= &piocbq
->iocb
;
6244 if (icmd
->un
.genreq64
.bdl
.bdeFlags
== BUFF_TYPE_BLP_64
) {
6245 numBdes
= icmd
->un
.genreq64
.bdl
.bdeSize
/
6246 sizeof(struct ulp_bde64
);
6247 /* The addrHigh and addrLow fields within the IOCB
6248 * have not been byteswapped yet so there is no
6249 * need to swap them back.
6251 bpl
= (struct ulp_bde64
*)
6252 ((struct lpfc_dmabuf
*)piocbq
->context3
)->virt
;
6257 for (i
= 0; i
< numBdes
; i
++) {
6258 /* Should already be byte swapped. */
6259 sgl
->addr_hi
= bpl
->addrHigh
;
6260 sgl
->addr_lo
= bpl
->addrLow
;
6262 if ((i
+1) == numBdes
)
6263 bf_set(lpfc_sli4_sge_last
, sgl
, 1);
6265 bf_set(lpfc_sli4_sge_last
, sgl
, 0);
6266 sgl
->word2
= cpu_to_le32(sgl
->word2
);
6267 /* swap the size field back to the cpu so we
6268 * can assign it to the sgl.
6270 bde
.tus
.w
= le32_to_cpu(bpl
->tus
.w
);
6271 sgl
->sge_len
= cpu_to_le32(bde
.tus
.f
.bdeSize
);
6272 /* The offsets in the sgl need to be accumulated
6273 * separately for the request and reply lists.
6274 * The request is always first, the reply follows.
6276 if (piocbq
->iocb
.ulpCommand
== CMD_GEN_REQUEST64_CR
) {
6277 /* add up the reply sg entries */
6278 if (bpl
->tus
.f
.bdeFlags
== BUFF_TYPE_BDE_64I
)
6280 /* first inbound? reset the offset */
6283 bf_set(lpfc_sli4_sge_offset
, sgl
, offset
);
6284 offset
+= bde
.tus
.f
.bdeSize
;
6289 } else if (icmd
->un
.genreq64
.bdl
.bdeFlags
== BUFF_TYPE_BDE_64
) {
6290 /* The addrHigh and addrLow fields of the BDE have not
6291 * been byteswapped yet so they need to be swapped
6292 * before putting them in the sgl.
6295 cpu_to_le32(icmd
->un
.genreq64
.bdl
.addrHigh
);
6297 cpu_to_le32(icmd
->un
.genreq64
.bdl
.addrLow
);
6298 bf_set(lpfc_sli4_sge_last
, sgl
, 1);
6299 sgl
->word2
= cpu_to_le32(sgl
->word2
);
6301 cpu_to_le32(icmd
->un
.genreq64
.bdl
.bdeSize
);
6303 return sglq
->sli4_xritag
;
6307 * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution
6308 * @phba: Pointer to HBA context object.
6310 * This routine performs a roundrobin SCSI command to SLI4 FCP WQ index
6311 * distribution. This is called by __lpfc_sli_issue_iocb_s4() with the hbalock
6314 * Return: index into SLI4 fast-path FCP queue index.
6317 lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba
*phba
)
6320 if (phba
->fcp_qidx
>= phba
->cfg_fcp_wq_count
)
6323 return phba
->fcp_qidx
;
6327 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
6328 * @phba: Pointer to HBA context object.
6329 * @piocb: Pointer to command iocb.
6330 * @wqe: Pointer to the work queue entry.
6332 * This routine converts the iocb command to its Work Queue Entry
6333 * equivalent. The wqe pointer should not have any fields set when
6334 * this routine is called because it will memcpy over them.
6335 * This routine does not set the CQ_ID or the WQEC bits in the
6338 * Returns: 0 = Success, IOCB_ERROR = Failure.
6341 lpfc_sli4_iocb2wqe(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
,
6342 union lpfc_wqe
*wqe
)
6344 uint32_t xmit_len
= 0, total_len
= 0;
6348 uint8_t command_type
= ELS_COMMAND_NON_FIP
;
6351 uint16_t abrt_iotag
;
6352 struct lpfc_iocbq
*abrtiocbq
;
6353 struct ulp_bde64
*bpl
= NULL
;
6354 uint32_t els_id
= LPFC_ELS_ID_DEFAULT
;
6356 struct ulp_bde64 bde
;
6358 fip
= phba
->hba_flag
& HBA_FIP_SUPPORT
;
6359 /* The fcp commands will set command type */
6360 if (iocbq
->iocb_flag
& LPFC_IO_FCP
)
6361 command_type
= FCP_COMMAND
;
6362 else if (fip
&& (iocbq
->iocb_flag
& LPFC_FIP_ELS_ID_MASK
))
6363 command_type
= ELS_COMMAND_FIP
;
6365 command_type
= ELS_COMMAND_NON_FIP
;
6367 /* Some of the fields are in the right position already */
6368 memcpy(wqe
, &iocbq
->iocb
, sizeof(union lpfc_wqe
));
6369 abort_tag
= (uint32_t) iocbq
->iotag
;
6370 xritag
= iocbq
->sli4_xritag
;
6371 wqe
->generic
.wqe_com
.word7
= 0; /* The ct field has moved so reset */
6372 /* words0-2 bpl convert bde */
6373 if (iocbq
->iocb
.un
.genreq64
.bdl
.bdeFlags
== BUFF_TYPE_BLP_64
) {
6374 numBdes
= iocbq
->iocb
.un
.genreq64
.bdl
.bdeSize
/
6375 sizeof(struct ulp_bde64
);
6376 bpl
= (struct ulp_bde64
*)
6377 ((struct lpfc_dmabuf
*)iocbq
->context3
)->virt
;
6381 /* Should already be byte swapped. */
6382 wqe
->generic
.bde
.addrHigh
= le32_to_cpu(bpl
->addrHigh
);
6383 wqe
->generic
.bde
.addrLow
= le32_to_cpu(bpl
->addrLow
);
6384 /* swap the size field back to the cpu so we
6385 * can assign it to the sgl.
6387 wqe
->generic
.bde
.tus
.w
= le32_to_cpu(bpl
->tus
.w
);
6388 xmit_len
= wqe
->generic
.bde
.tus
.f
.bdeSize
;
6390 for (i
= 0; i
< numBdes
; i
++) {
6391 bde
.tus
.w
= le32_to_cpu(bpl
[i
].tus
.w
);
6392 total_len
+= bde
.tus
.f
.bdeSize
;
6395 xmit_len
= iocbq
->iocb
.un
.fcpi64
.bdl
.bdeSize
;
6397 iocbq
->iocb
.ulpIoTag
= iocbq
->iotag
;
6398 cmnd
= iocbq
->iocb
.ulpCommand
;
6400 switch (iocbq
->iocb
.ulpCommand
) {
6401 case CMD_ELS_REQUEST64_CR
:
6402 if (!iocbq
->iocb
.ulpLe
) {
6403 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
6404 "2007 Only Limited Edition cmd Format"
6405 " supported 0x%x\n",
6406 iocbq
->iocb
.ulpCommand
);
6409 wqe
->els_req
.payload_len
= xmit_len
;
6410 /* Els_reguest64 has a TMO */
6411 bf_set(wqe_tmo
, &wqe
->els_req
.wqe_com
,
6412 iocbq
->iocb
.ulpTimeout
);
6413 /* Need a VF for word 4 set the vf bit*/
6414 bf_set(els_req64_vf
, &wqe
->els_req
, 0);
6415 /* And a VFID for word 12 */
6416 bf_set(els_req64_vfid
, &wqe
->els_req
, 0);
6417 ct
= ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
);
6418 bf_set(wqe_ctxt_tag
, &wqe
->els_req
.wqe_com
,
6419 iocbq
->iocb
.ulpContext
);
6420 bf_set(wqe_ct
, &wqe
->els_req
.wqe_com
, ct
);
6421 bf_set(wqe_pu
, &wqe
->els_req
.wqe_com
, 0);
6422 /* CCP CCPE PV PRI in word10 were set in the memcpy */
6423 if (command_type
== ELS_COMMAND_FIP
) {
6424 els_id
= ((iocbq
->iocb_flag
& LPFC_FIP_ELS_ID_MASK
)
6425 >> LPFC_FIP_ELS_ID_SHIFT
);
6427 bf_set(wqe_els_id
, &wqe
->els_req
.wqe_com
, els_id
);
6428 bf_set(wqe_dbde
, &wqe
->els_req
.wqe_com
, 1);
6429 bf_set(wqe_iod
, &wqe
->els_req
.wqe_com
, LPFC_WQE_IOD_READ
);
6430 bf_set(wqe_qosd
, &wqe
->els_req
.wqe_com
, 1);
6431 bf_set(wqe_lenloc
, &wqe
->els_req
.wqe_com
, LPFC_WQE_LENLOC_NONE
);
6432 bf_set(wqe_ebde_cnt
, &wqe
->els_req
.wqe_com
, 0);
6434 case CMD_XMIT_SEQUENCE64_CX
:
6435 bf_set(wqe_ctxt_tag
, &wqe
->xmit_sequence
.wqe_com
,
6436 iocbq
->iocb
.un
.ulpWord
[3]);
6437 bf_set(wqe_rcvoxid
, &wqe
->xmit_sequence
.wqe_com
,
6438 iocbq
->iocb
.ulpContext
);
6439 /* The entire sequence is transmitted for this IOCB */
6440 xmit_len
= total_len
;
6441 cmnd
= CMD_XMIT_SEQUENCE64_CR
;
6442 case CMD_XMIT_SEQUENCE64_CR
:
6443 /* word3 iocb=io_tag32 wqe=reserved */
6444 wqe
->xmit_sequence
.rsvd3
= 0;
6445 /* word4 relative_offset memcpy */
6446 /* word5 r_ctl/df_ctl memcpy */
6447 bf_set(wqe_pu
, &wqe
->xmit_sequence
.wqe_com
, 0);
6448 bf_set(wqe_dbde
, &wqe
->xmit_sequence
.wqe_com
, 1);
6449 bf_set(wqe_iod
, &wqe
->xmit_sequence
.wqe_com
,
6450 LPFC_WQE_IOD_WRITE
);
6451 bf_set(wqe_lenloc
, &wqe
->xmit_sequence
.wqe_com
,
6452 LPFC_WQE_LENLOC_WORD12
);
6453 bf_set(wqe_ebde_cnt
, &wqe
->xmit_sequence
.wqe_com
, 0);
6454 wqe
->xmit_sequence
.xmit_len
= xmit_len
;
6455 command_type
= OTHER_COMMAND
;
6457 case CMD_XMIT_BCAST64_CN
:
6458 /* word3 iocb=iotag32 wqe=seq_payload_len */
6459 wqe
->xmit_bcast64
.seq_payload_len
= xmit_len
;
6460 /* word4 iocb=rsvd wqe=rsvd */
6461 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
6462 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
6463 bf_set(wqe_ct
, &wqe
->xmit_bcast64
.wqe_com
,
6464 ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
));
6465 bf_set(wqe_dbde
, &wqe
->xmit_bcast64
.wqe_com
, 1);
6466 bf_set(wqe_iod
, &wqe
->xmit_bcast64
.wqe_com
, LPFC_WQE_IOD_WRITE
);
6467 bf_set(wqe_lenloc
, &wqe
->xmit_bcast64
.wqe_com
,
6468 LPFC_WQE_LENLOC_WORD3
);
6469 bf_set(wqe_ebde_cnt
, &wqe
->xmit_bcast64
.wqe_com
, 0);
6471 case CMD_FCP_IWRITE64_CR
:
6472 command_type
= FCP_COMMAND_DATA_OUT
;
6473 /* word3 iocb=iotag wqe=payload_offset_len */
6474 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
6475 wqe
->fcp_iwrite
.payload_offset_len
=
6476 xmit_len
+ sizeof(struct fcp_rsp
);
6477 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
6478 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
6479 bf_set(wqe_erp
, &wqe
->fcp_iwrite
.wqe_com
,
6480 iocbq
->iocb
.ulpFCP2Rcvy
);
6481 bf_set(wqe_lnk
, &wqe
->fcp_iwrite
.wqe_com
, iocbq
->iocb
.ulpXS
);
6482 /* Always open the exchange */
6483 bf_set(wqe_xc
, &wqe
->fcp_iwrite
.wqe_com
, 0);
6484 bf_set(wqe_dbde
, &wqe
->fcp_iwrite
.wqe_com
, 1);
6485 bf_set(wqe_iod
, &wqe
->fcp_iwrite
.wqe_com
, LPFC_WQE_IOD_WRITE
);
6486 bf_set(wqe_lenloc
, &wqe
->fcp_iwrite
.wqe_com
,
6487 LPFC_WQE_LENLOC_WORD4
);
6488 bf_set(wqe_ebde_cnt
, &wqe
->fcp_iwrite
.wqe_com
, 0);
6489 bf_set(wqe_pu
, &wqe
->fcp_iwrite
.wqe_com
, iocbq
->iocb
.ulpPU
);
6491 case CMD_FCP_IREAD64_CR
:
6492 /* word3 iocb=iotag wqe=payload_offset_len */
6493 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
6494 wqe
->fcp_iread
.payload_offset_len
=
6495 xmit_len
+ sizeof(struct fcp_rsp
);
6496 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
6497 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
6498 bf_set(wqe_erp
, &wqe
->fcp_iread
.wqe_com
,
6499 iocbq
->iocb
.ulpFCP2Rcvy
);
6500 bf_set(wqe_lnk
, &wqe
->fcp_iread
.wqe_com
, iocbq
->iocb
.ulpXS
);
6501 /* Always open the exchange */
6502 bf_set(wqe_xc
, &wqe
->fcp_iread
.wqe_com
, 0);
6503 bf_set(wqe_dbde
, &wqe
->fcp_iread
.wqe_com
, 1);
6504 bf_set(wqe_iod
, &wqe
->fcp_iread
.wqe_com
, LPFC_WQE_IOD_READ
);
6505 bf_set(wqe_lenloc
, &wqe
->fcp_iread
.wqe_com
,
6506 LPFC_WQE_LENLOC_WORD4
);
6507 bf_set(wqe_ebde_cnt
, &wqe
->fcp_iread
.wqe_com
, 0);
6508 bf_set(wqe_pu
, &wqe
->fcp_iread
.wqe_com
, iocbq
->iocb
.ulpPU
);
6510 case CMD_FCP_ICMND64_CR
:
6511 /* word3 iocb=IO_TAG wqe=reserved */
6512 wqe
->fcp_icmd
.rsrvd3
= 0;
6513 bf_set(wqe_pu
, &wqe
->fcp_icmd
.wqe_com
, 0);
6514 /* Always open the exchange */
6515 bf_set(wqe_xc
, &wqe
->fcp_icmd
.wqe_com
, 0);
6516 bf_set(wqe_dbde
, &wqe
->fcp_icmd
.wqe_com
, 1);
6517 bf_set(wqe_iod
, &wqe
->fcp_icmd
.wqe_com
, LPFC_WQE_IOD_WRITE
);
6518 bf_set(wqe_qosd
, &wqe
->fcp_icmd
.wqe_com
, 1);
6519 bf_set(wqe_lenloc
, &wqe
->fcp_icmd
.wqe_com
,
6520 LPFC_WQE_LENLOC_NONE
);
6521 bf_set(wqe_ebde_cnt
, &wqe
->fcp_icmd
.wqe_com
, 0);
6523 case CMD_GEN_REQUEST64_CR
:
6524 /* For this command calculate the xmit length of the
6528 numBdes
= iocbq
->iocb
.un
.genreq64
.bdl
.bdeSize
/
6529 sizeof(struct ulp_bde64
);
6530 for (i
= 0; i
< numBdes
; i
++) {
6531 if (bpl
[i
].tus
.f
.bdeFlags
!= BUFF_TYPE_BDE_64
)
6533 bde
.tus
.w
= le32_to_cpu(bpl
[i
].tus
.w
);
6534 xmit_len
+= bde
.tus
.f
.bdeSize
;
6536 /* word3 iocb=IO_TAG wqe=request_payload_len */
6537 wqe
->gen_req
.request_payload_len
= xmit_len
;
6538 /* word4 iocb=parameter wqe=relative_offset memcpy */
6539 /* word5 [rctl, type, df_ctl, la] copied in memcpy */
6540 /* word6 context tag copied in memcpy */
6541 if (iocbq
->iocb
.ulpCt_h
|| iocbq
->iocb
.ulpCt_l
) {
6542 ct
= ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
);
6543 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
6544 "2015 Invalid CT %x command 0x%x\n",
6545 ct
, iocbq
->iocb
.ulpCommand
);
6548 bf_set(wqe_ct
, &wqe
->gen_req
.wqe_com
, 0);
6549 bf_set(wqe_tmo
, &wqe
->gen_req
.wqe_com
, iocbq
->iocb
.ulpTimeout
);
6550 bf_set(wqe_pu
, &wqe
->gen_req
.wqe_com
, iocbq
->iocb
.ulpPU
);
6551 bf_set(wqe_dbde
, &wqe
->gen_req
.wqe_com
, 1);
6552 bf_set(wqe_iod
, &wqe
->gen_req
.wqe_com
, LPFC_WQE_IOD_READ
);
6553 bf_set(wqe_qosd
, &wqe
->gen_req
.wqe_com
, 1);
6554 bf_set(wqe_lenloc
, &wqe
->gen_req
.wqe_com
, LPFC_WQE_LENLOC_NONE
);
6555 bf_set(wqe_ebde_cnt
, &wqe
->gen_req
.wqe_com
, 0);
6556 command_type
= OTHER_COMMAND
;
6558 case CMD_XMIT_ELS_RSP64_CX
:
6559 /* words0-2 BDE memcpy */
6560 /* word3 iocb=iotag32 wqe=response_payload_len */
6561 wqe
->xmit_els_rsp
.response_payload_len
= xmit_len
;
6562 /* word4 iocb=did wge=rsvd. */
6563 wqe
->xmit_els_rsp
.rsvd4
= 0;
6564 /* word5 iocb=rsvd wge=did */
6565 bf_set(wqe_els_did
, &wqe
->xmit_els_rsp
.wqe_dest
,
6566 iocbq
->iocb
.un
.elsreq64
.remoteID
);
6567 bf_set(wqe_ct
, &wqe
->xmit_els_rsp
.wqe_com
,
6568 ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
));
6569 bf_set(wqe_pu
, &wqe
->xmit_els_rsp
.wqe_com
, iocbq
->iocb
.ulpPU
);
6570 bf_set(wqe_rcvoxid
, &wqe
->xmit_els_rsp
.wqe_com
,
6571 iocbq
->iocb
.ulpContext
);
6572 if (!iocbq
->iocb
.ulpCt_h
&& iocbq
->iocb
.ulpCt_l
)
6573 bf_set(wqe_ctxt_tag
, &wqe
->xmit_els_rsp
.wqe_com
,
6574 iocbq
->vport
->vpi
+ phba
->vpi_base
);
6575 bf_set(wqe_dbde
, &wqe
->xmit_els_rsp
.wqe_com
, 1);
6576 bf_set(wqe_iod
, &wqe
->xmit_els_rsp
.wqe_com
, LPFC_WQE_IOD_WRITE
);
6577 bf_set(wqe_qosd
, &wqe
->xmit_els_rsp
.wqe_com
, 1);
6578 bf_set(wqe_lenloc
, &wqe
->xmit_els_rsp
.wqe_com
,
6579 LPFC_WQE_LENLOC_WORD3
);
6580 bf_set(wqe_ebde_cnt
, &wqe
->xmit_els_rsp
.wqe_com
, 0);
6581 command_type
= OTHER_COMMAND
;
6583 case CMD_CLOSE_XRI_CN
:
6584 case CMD_ABORT_XRI_CN
:
6585 case CMD_ABORT_XRI_CX
:
6586 /* words 0-2 memcpy should be 0 rserved */
6587 /* port will send abts */
6588 abrt_iotag
= iocbq
->iocb
.un
.acxri
.abortContextTag
;
6589 if (abrt_iotag
!= 0 && abrt_iotag
<= phba
->sli
.last_iotag
) {
6590 abrtiocbq
= phba
->sli
.iocbq_lookup
[abrt_iotag
];
6591 fip
= abrtiocbq
->iocb_flag
& LPFC_FIP_ELS_ID_MASK
;
6595 if ((iocbq
->iocb
.ulpCommand
== CMD_CLOSE_XRI_CN
) || fip
)
6597 * The link is down, or the command was ELS_FIP
6598 * so the fw does not need to send abts
6601 bf_set(abort_cmd_ia
, &wqe
->abort_cmd
, 1);
6603 bf_set(abort_cmd_ia
, &wqe
->abort_cmd
, 0);
6604 bf_set(abort_cmd_criteria
, &wqe
->abort_cmd
, T_XRI_TAG
);
6605 /* word5 iocb=CONTEXT_TAG|IO_TAG wqe=reserved */
6606 wqe
->abort_cmd
.rsrvd5
= 0;
6607 bf_set(wqe_ct
, &wqe
->abort_cmd
.wqe_com
,
6608 ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
));
6609 abort_tag
= iocbq
->iocb
.un
.acxri
.abortIoTag
;
6611 * The abort handler will send us CMD_ABORT_XRI_CN or
6612 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
6614 bf_set(wqe_cmnd
, &wqe
->abort_cmd
.wqe_com
, CMD_ABORT_XRI_CX
);
6615 bf_set(wqe_qosd
, &wqe
->abort_cmd
.wqe_com
, 1);
6616 bf_set(wqe_lenloc
, &wqe
->abort_cmd
.wqe_com
,
6617 LPFC_WQE_LENLOC_NONE
);
6618 cmnd
= CMD_ABORT_XRI_CX
;
6619 command_type
= OTHER_COMMAND
;
6622 case CMD_XMIT_BLS_RSP64_CX
:
6623 /* As BLS ABTS-ACC WQE is very different from other WQEs,
6624 * we re-construct this WQE here based on information in
6625 * iocbq from scratch.
6627 memset(wqe
, 0, sizeof(union lpfc_wqe
));
6628 /* OX_ID is invariable to who sent ABTS to CT exchange */
6629 bf_set(xmit_bls_rsp64_oxid
, &wqe
->xmit_bls_rsp
,
6630 bf_get(lpfc_abts_oxid
, &iocbq
->iocb
.un
.bls_acc
));
6631 if (bf_get(lpfc_abts_orig
, &iocbq
->iocb
.un
.bls_acc
) ==
6632 LPFC_ABTS_UNSOL_INT
) {
6633 /* ABTS sent by initiator to CT exchange, the
6634 * RX_ID field will be filled with the newly
6635 * allocated responder XRI.
6637 bf_set(xmit_bls_rsp64_rxid
, &wqe
->xmit_bls_rsp
,
6638 iocbq
->sli4_xritag
);
6640 /* ABTS sent by responder to CT exchange, the
6641 * RX_ID field will be filled with the responder
6644 bf_set(xmit_bls_rsp64_rxid
, &wqe
->xmit_bls_rsp
,
6645 bf_get(lpfc_abts_rxid
, &iocbq
->iocb
.un
.bls_acc
));
6647 bf_set(xmit_bls_rsp64_seqcnthi
, &wqe
->xmit_bls_rsp
, 0xffff);
6648 bf_set(wqe_xmit_bls_pt
, &wqe
->xmit_bls_rsp
.wqe_dest
, 0x1);
6649 bf_set(wqe_ctxt_tag
, &wqe
->xmit_bls_rsp
.wqe_com
,
6650 iocbq
->iocb
.ulpContext
);
6651 bf_set(wqe_qosd
, &wqe
->xmit_bls_rsp
.wqe_com
, 1);
6652 bf_set(wqe_lenloc
, &wqe
->xmit_bls_rsp
.wqe_com
,
6653 LPFC_WQE_LENLOC_NONE
);
6654 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
6655 command_type
= OTHER_COMMAND
;
6657 case CMD_XRI_ABORTED_CX
:
6658 case CMD_CREATE_XRI_CR
: /* Do we expect to use this? */
6659 case CMD_IOCB_FCP_IBIDIR64_CR
: /* bidirectional xfer */
6660 case CMD_FCP_TSEND64_CX
: /* Target mode send xfer-ready */
6661 case CMD_FCP_TRSP64_CX
: /* Target mode rcv */
6662 case CMD_FCP_AUTO_TRSP_CX
: /* Auto target rsp */
6664 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
6665 "2014 Invalid command 0x%x\n",
6666 iocbq
->iocb
.ulpCommand
);
6670 bf_set(wqe_xri_tag
, &wqe
->generic
.wqe_com
, xritag
);
6671 bf_set(wqe_reqtag
, &wqe
->generic
.wqe_com
, iocbq
->iotag
);
6672 wqe
->generic
.wqe_com
.abort_tag
= abort_tag
;
6673 bf_set(wqe_cmd_type
, &wqe
->generic
.wqe_com
, command_type
);
6674 bf_set(wqe_cmnd
, &wqe
->generic
.wqe_com
, cmnd
);
6675 bf_set(wqe_class
, &wqe
->generic
.wqe_com
, iocbq
->iocb
.ulpClass
);
6676 bf_set(wqe_cqid
, &wqe
->generic
.wqe_com
, LPFC_WQE_CQ_ID_DEFAULT
);
6681 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
6682 * @phba: Pointer to HBA context object.
6683 * @ring_number: SLI ring number to issue iocb on.
6684 * @piocb: Pointer to command iocb.
6685 * @flag: Flag indicating if this command can be put into txq.
6687 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
6688 * an iocb command to an HBA with SLI-4 interface spec.
6690 * This function is called with hbalock held. The function will return success
6691 * after it successfully submit the iocb to firmware or after adding to the
6695 __lpfc_sli_issue_iocb_s4(struct lpfc_hba
*phba
, uint32_t ring_number
,
6696 struct lpfc_iocbq
*piocb
, uint32_t flag
)
6698 struct lpfc_sglq
*sglq
;
6700 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[ring_number
];
6702 if (piocb
->sli4_xritag
== NO_XRI
) {
6703 if (piocb
->iocb
.ulpCommand
== CMD_ABORT_XRI_CN
||
6704 piocb
->iocb
.ulpCommand
== CMD_CLOSE_XRI_CN
)
6707 if (pring
->txq_cnt
) {
6708 if (!(flag
& SLI_IOCB_RET_IOCB
)) {
6709 __lpfc_sli_ringtx_put(phba
,
6711 return IOCB_SUCCESS
;
6716 sglq
= __lpfc_sli_get_sglq(phba
, piocb
);
6718 if (!(flag
& SLI_IOCB_RET_IOCB
)) {
6719 __lpfc_sli_ringtx_put(phba
,
6722 return IOCB_SUCCESS
;
6728 } else if (piocb
->iocb_flag
& LPFC_IO_FCP
) {
6729 sglq
= NULL
; /* These IO's already have an XRI and
6733 /* This is a continuation of a commandi,(CX) so this
6734 * sglq is on the active list
6736 sglq
= __lpfc_get_active_sglq(phba
, piocb
->sli4_xritag
);
6742 piocb
->sli4_xritag
= sglq
->sli4_xritag
;
6744 if (NO_XRI
== lpfc_sli4_bpl2sgl(phba
, piocb
, sglq
))
6748 if (lpfc_sli4_iocb2wqe(phba
, piocb
, &wqe
))
6751 if ((piocb
->iocb_flag
& LPFC_IO_FCP
) ||
6752 (piocb
->iocb_flag
& LPFC_USE_FCPWQIDX
)) {
6754 * For FCP command IOCB, get a new WQ index to distribute
6755 * WQE across the WQsr. On the other hand, for abort IOCB,
6756 * it carries the same WQ index to the original command
6759 if (piocb
->iocb_flag
& LPFC_IO_FCP
)
6760 piocb
->fcp_wqidx
= lpfc_sli4_scmd_to_wqidx_distr(phba
);
6761 if (lpfc_sli4_wq_put(phba
->sli4_hba
.fcp_wq
[piocb
->fcp_wqidx
],
6765 if (lpfc_sli4_wq_put(phba
->sli4_hba
.els_wq
, &wqe
))
6768 lpfc_sli_ringtxcmpl_put(phba
, pring
, piocb
);
6774 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
6776 * This routine wraps the actual lockless version for issusing IOCB function
6777 * pointer from the lpfc_hba struct.
6780 * IOCB_ERROR - Error
6781 * IOCB_SUCCESS - Success
6785 __lpfc_sli_issue_iocb(struct lpfc_hba
*phba
, uint32_t ring_number
,
6786 struct lpfc_iocbq
*piocb
, uint32_t flag
)
6788 return phba
->__lpfc_sli_issue_iocb(phba
, ring_number
, piocb
, flag
);
6792 * lpfc_sli_api_table_setup - Set up sli api fucntion jump table
6793 * @phba: The hba struct for which this call is being executed.
6794 * @dev_grp: The HBA PCI-Device group number.
6796 * This routine sets up the SLI interface API function jump table in @phba
6798 * Returns: 0 - success, -ENODEV - failure.
6801 lpfc_sli_api_table_setup(struct lpfc_hba
*phba
, uint8_t dev_grp
)
6805 case LPFC_PCI_DEV_LP
:
6806 phba
->__lpfc_sli_issue_iocb
= __lpfc_sli_issue_iocb_s3
;
6807 phba
->__lpfc_sli_release_iocbq
= __lpfc_sli_release_iocbq_s3
;
6809 case LPFC_PCI_DEV_OC
:
6810 phba
->__lpfc_sli_issue_iocb
= __lpfc_sli_issue_iocb_s4
;
6811 phba
->__lpfc_sli_release_iocbq
= __lpfc_sli_release_iocbq_s4
;
6814 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6815 "1419 Invalid HBA PCI-device group: 0x%x\n",
6820 phba
->lpfc_get_iocb_from_iocbq
= lpfc_get_iocb_from_iocbq
;
6825 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
6826 * @phba: Pointer to HBA context object.
6827 * @pring: Pointer to driver SLI ring object.
6828 * @piocb: Pointer to command iocb.
6829 * @flag: Flag indicating if this command can be put into txq.
6831 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
6832 * function. This function gets the hbalock and calls
6833 * __lpfc_sli_issue_iocb function and will return the error returned
6834 * by __lpfc_sli_issue_iocb function. This wrapper is used by
6835 * functions which do not hold hbalock.
6838 lpfc_sli_issue_iocb(struct lpfc_hba
*phba
, uint32_t ring_number
,
6839 struct lpfc_iocbq
*piocb
, uint32_t flag
)
6841 unsigned long iflags
;
6844 spin_lock_irqsave(&phba
->hbalock
, iflags
);
6845 rc
= __lpfc_sli_issue_iocb(phba
, ring_number
, piocb
, flag
);
6846 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
6852 * lpfc_extra_ring_setup - Extra ring setup function
6853 * @phba: Pointer to HBA context object.
6855 * This function is called while driver attaches with the
6856 * HBA to setup the extra ring. The extra ring is used
6857 * only when driver needs to support target mode functionality
6858 * or IP over FC functionalities.
6860 * This function is called with no lock held.
6863 lpfc_extra_ring_setup( struct lpfc_hba
*phba
)
6865 struct lpfc_sli
*psli
;
6866 struct lpfc_sli_ring
*pring
;
6870 /* Adjust cmd/rsp ring iocb entries more evenly */
6872 /* Take some away from the FCP ring */
6873 pring
= &psli
->ring
[psli
->fcp_ring
];
6874 pring
->numCiocb
-= SLI2_IOCB_CMD_R1XTRA_ENTRIES
;
6875 pring
->numRiocb
-= SLI2_IOCB_RSP_R1XTRA_ENTRIES
;
6876 pring
->numCiocb
-= SLI2_IOCB_CMD_R3XTRA_ENTRIES
;
6877 pring
->numRiocb
-= SLI2_IOCB_RSP_R3XTRA_ENTRIES
;
6879 /* and give them to the extra ring */
6880 pring
= &psli
->ring
[psli
->extra_ring
];
6882 pring
->numCiocb
+= SLI2_IOCB_CMD_R1XTRA_ENTRIES
;
6883 pring
->numRiocb
+= SLI2_IOCB_RSP_R1XTRA_ENTRIES
;
6884 pring
->numCiocb
+= SLI2_IOCB_CMD_R3XTRA_ENTRIES
;
6885 pring
->numRiocb
+= SLI2_IOCB_RSP_R3XTRA_ENTRIES
;
6887 /* Setup default profile for this ring */
6888 pring
->iotag_max
= 4096;
6889 pring
->num_mask
= 1;
6890 pring
->prt
[0].profile
= 0; /* Mask 0 */
6891 pring
->prt
[0].rctl
= phba
->cfg_multi_ring_rctl
;
6892 pring
->prt
[0].type
= phba
->cfg_multi_ring_type
;
6893 pring
->prt
[0].lpfc_sli_rcv_unsol_event
= NULL
;
6898 * lpfc_sli_async_event_handler - ASYNC iocb handler function
6899 * @phba: Pointer to HBA context object.
6900 * @pring: Pointer to driver SLI ring object.
6901 * @iocbq: Pointer to iocb object.
6903 * This function is called by the slow ring event handler
6904 * function when there is an ASYNC event iocb in the ring.
6905 * This function is called with no lock held.
6906 * Currently this function handles only temperature related
6907 * ASYNC events. The function decodes the temperature sensor
6908 * event message and posts events for the management applications.
6911 lpfc_sli_async_event_handler(struct lpfc_hba
* phba
,
6912 struct lpfc_sli_ring
* pring
, struct lpfc_iocbq
* iocbq
)
6917 struct temp_event temp_event_data
;
6918 struct Scsi_Host
*shost
;
6921 icmd
= &iocbq
->iocb
;
6922 evt_code
= icmd
->un
.asyncstat
.evt_code
;
6923 temp
= icmd
->ulpContext
;
6925 if ((evt_code
!= ASYNC_TEMP_WARN
) &&
6926 (evt_code
!= ASYNC_TEMP_SAFE
)) {
6927 iocb_w
= (uint32_t *) icmd
;
6928 lpfc_printf_log(phba
,
6931 "0346 Ring %d handler: unexpected ASYNC_STATUS"
6933 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
6934 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
6935 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
6936 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
6938 icmd
->un
.asyncstat
.evt_code
,
6939 iocb_w
[0], iocb_w
[1], iocb_w
[2], iocb_w
[3],
6940 iocb_w
[4], iocb_w
[5], iocb_w
[6], iocb_w
[7],
6941 iocb_w
[8], iocb_w
[9], iocb_w
[10], iocb_w
[11],
6942 iocb_w
[12], iocb_w
[13], iocb_w
[14], iocb_w
[15]);
6946 temp_event_data
.data
= (uint32_t)temp
;
6947 temp_event_data
.event_type
= FC_REG_TEMPERATURE_EVENT
;
6948 if (evt_code
== ASYNC_TEMP_WARN
) {
6949 temp_event_data
.event_code
= LPFC_THRESHOLD_TEMP
;
6950 lpfc_printf_log(phba
,
6953 "0347 Adapter is very hot, please take "
6954 "corrective action. temperature : %d Celsius\n",
6957 if (evt_code
== ASYNC_TEMP_SAFE
) {
6958 temp_event_data
.event_code
= LPFC_NORMAL_TEMP
;
6959 lpfc_printf_log(phba
,
6962 "0340 Adapter temperature is OK now. "
6963 "temperature : %d Celsius\n",
6967 /* Send temperature change event to applications */
6968 shost
= lpfc_shost_from_vport(phba
->pport
);
6969 fc_host_post_vendor_event(shost
, fc_get_event_number(),
6970 sizeof(temp_event_data
), (char *) &temp_event_data
,
6977 * lpfc_sli_setup - SLI ring setup function
6978 * @phba: Pointer to HBA context object.
6980 * lpfc_sli_setup sets up rings of the SLI interface with
6981 * number of iocbs per ring and iotags. This function is
6982 * called while driver attach to the HBA and before the
6983 * interrupts are enabled. So there is no need for locking.
6985 * This function always returns 0.
6988 lpfc_sli_setup(struct lpfc_hba
*phba
)
6990 int i
, totiocbsize
= 0;
6991 struct lpfc_sli
*psli
= &phba
->sli
;
6992 struct lpfc_sli_ring
*pring
;
6994 psli
->num_rings
= MAX_CONFIGURED_RINGS
;
6996 psli
->fcp_ring
= LPFC_FCP_RING
;
6997 psli
->next_ring
= LPFC_FCP_NEXT_RING
;
6998 psli
->extra_ring
= LPFC_EXTRA_RING
;
7000 psli
->iocbq_lookup
= NULL
;
7001 psli
->iocbq_lookup_len
= 0;
7002 psli
->last_iotag
= 0;
7004 for (i
= 0; i
< psli
->num_rings
; i
++) {
7005 pring
= &psli
->ring
[i
];
7007 case LPFC_FCP_RING
: /* ring 0 - FCP */
7008 /* numCiocb and numRiocb are used in config_port */
7009 pring
->numCiocb
= SLI2_IOCB_CMD_R0_ENTRIES
;
7010 pring
->numRiocb
= SLI2_IOCB_RSP_R0_ENTRIES
;
7011 pring
->numCiocb
+= SLI2_IOCB_CMD_R1XTRA_ENTRIES
;
7012 pring
->numRiocb
+= SLI2_IOCB_RSP_R1XTRA_ENTRIES
;
7013 pring
->numCiocb
+= SLI2_IOCB_CMD_R3XTRA_ENTRIES
;
7014 pring
->numRiocb
+= SLI2_IOCB_RSP_R3XTRA_ENTRIES
;
7015 pring
->sizeCiocb
= (phba
->sli_rev
== 3) ?
7016 SLI3_IOCB_CMD_SIZE
:
7018 pring
->sizeRiocb
= (phba
->sli_rev
== 3) ?
7019 SLI3_IOCB_RSP_SIZE
:
7021 pring
->iotag_ctr
= 0;
7023 (phba
->cfg_hba_queue_depth
* 2);
7024 pring
->fast_iotag
= pring
->iotag_max
;
7025 pring
->num_mask
= 0;
7027 case LPFC_EXTRA_RING
: /* ring 1 - EXTRA */
7028 /* numCiocb and numRiocb are used in config_port */
7029 pring
->numCiocb
= SLI2_IOCB_CMD_R1_ENTRIES
;
7030 pring
->numRiocb
= SLI2_IOCB_RSP_R1_ENTRIES
;
7031 pring
->sizeCiocb
= (phba
->sli_rev
== 3) ?
7032 SLI3_IOCB_CMD_SIZE
:
7034 pring
->sizeRiocb
= (phba
->sli_rev
== 3) ?
7035 SLI3_IOCB_RSP_SIZE
:
7037 pring
->iotag_max
= phba
->cfg_hba_queue_depth
;
7038 pring
->num_mask
= 0;
7040 case LPFC_ELS_RING
: /* ring 2 - ELS / CT */
7041 /* numCiocb and numRiocb are used in config_port */
7042 pring
->numCiocb
= SLI2_IOCB_CMD_R2_ENTRIES
;
7043 pring
->numRiocb
= SLI2_IOCB_RSP_R2_ENTRIES
;
7044 pring
->sizeCiocb
= (phba
->sli_rev
== 3) ?
7045 SLI3_IOCB_CMD_SIZE
:
7047 pring
->sizeRiocb
= (phba
->sli_rev
== 3) ?
7048 SLI3_IOCB_RSP_SIZE
:
7050 pring
->fast_iotag
= 0;
7051 pring
->iotag_ctr
= 0;
7052 pring
->iotag_max
= 4096;
7053 pring
->lpfc_sli_rcv_async_status
=
7054 lpfc_sli_async_event_handler
;
7055 pring
->num_mask
= LPFC_MAX_RING_MASK
;
7056 pring
->prt
[0].profile
= 0; /* Mask 0 */
7057 pring
->prt
[0].rctl
= FC_RCTL_ELS_REQ
;
7058 pring
->prt
[0].type
= FC_TYPE_ELS
;
7059 pring
->prt
[0].lpfc_sli_rcv_unsol_event
=
7060 lpfc_els_unsol_event
;
7061 pring
->prt
[1].profile
= 0; /* Mask 1 */
7062 pring
->prt
[1].rctl
= FC_RCTL_ELS_REP
;
7063 pring
->prt
[1].type
= FC_TYPE_ELS
;
7064 pring
->prt
[1].lpfc_sli_rcv_unsol_event
=
7065 lpfc_els_unsol_event
;
7066 pring
->prt
[2].profile
= 0; /* Mask 2 */
7067 /* NameServer Inquiry */
7068 pring
->prt
[2].rctl
= FC_RCTL_DD_UNSOL_CTL
;
7070 pring
->prt
[2].type
= FC_TYPE_CT
;
7071 pring
->prt
[2].lpfc_sli_rcv_unsol_event
=
7072 lpfc_ct_unsol_event
;
7073 pring
->prt
[3].profile
= 0; /* Mask 3 */
7074 /* NameServer response */
7075 pring
->prt
[3].rctl
= FC_RCTL_DD_SOL_CTL
;
7077 pring
->prt
[3].type
= FC_TYPE_CT
;
7078 pring
->prt
[3].lpfc_sli_rcv_unsol_event
=
7079 lpfc_ct_unsol_event
;
7080 /* abort unsolicited sequence */
7081 pring
->prt
[4].profile
= 0; /* Mask 4 */
7082 pring
->prt
[4].rctl
= FC_RCTL_BA_ABTS
;
7083 pring
->prt
[4].type
= FC_TYPE_BLS
;
7084 pring
->prt
[4].lpfc_sli_rcv_unsol_event
=
7085 lpfc_sli4_ct_abort_unsol_event
;
7088 totiocbsize
+= (pring
->numCiocb
* pring
->sizeCiocb
) +
7089 (pring
->numRiocb
* pring
->sizeRiocb
);
7091 if (totiocbsize
> MAX_SLIM_IOCB_SIZE
) {
7092 /* Too many cmd / rsp ring entries in SLI2 SLIM */
7093 printk(KERN_ERR
"%d:0462 Too many cmd / rsp ring entries in "
7094 "SLI2 SLIM Data: x%x x%lx\n",
7095 phba
->brd_no
, totiocbsize
,
7096 (unsigned long) MAX_SLIM_IOCB_SIZE
);
7098 if (phba
->cfg_multi_ring_support
== 2)
7099 lpfc_extra_ring_setup(phba
);
7105 * lpfc_sli_queue_setup - Queue initialization function
7106 * @phba: Pointer to HBA context object.
7108 * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each
7109 * ring. This function also initializes ring indices of each ring.
7110 * This function is called during the initialization of the SLI
7111 * interface of an HBA.
7112 * This function is called with no lock held and always returns
7116 lpfc_sli_queue_setup(struct lpfc_hba
*phba
)
7118 struct lpfc_sli
*psli
;
7119 struct lpfc_sli_ring
*pring
;
7123 spin_lock_irq(&phba
->hbalock
);
7124 INIT_LIST_HEAD(&psli
->mboxq
);
7125 INIT_LIST_HEAD(&psli
->mboxq_cmpl
);
7126 /* Initialize list headers for txq and txcmplq as double linked lists */
7127 for (i
= 0; i
< psli
->num_rings
; i
++) {
7128 pring
= &psli
->ring
[i
];
7130 pring
->next_cmdidx
= 0;
7131 pring
->local_getidx
= 0;
7133 INIT_LIST_HEAD(&pring
->txq
);
7134 INIT_LIST_HEAD(&pring
->txcmplq
);
7135 INIT_LIST_HEAD(&pring
->iocb_continueq
);
7136 INIT_LIST_HEAD(&pring
->iocb_continue_saveq
);
7137 INIT_LIST_HEAD(&pring
->postbufq
);
7139 spin_unlock_irq(&phba
->hbalock
);
7144 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
7145 * @phba: Pointer to HBA context object.
7147 * This routine flushes the mailbox command subsystem. It will unconditionally
7148 * flush all the mailbox commands in the three possible stages in the mailbox
7149 * command sub-system: pending mailbox command queue; the outstanding mailbox
7150 * command; and completed mailbox command queue. It is caller's responsibility
7151 * to make sure that the driver is in the proper state to flush the mailbox
7152 * command sub-system. Namely, the posting of mailbox commands into the
7153 * pending mailbox command queue from the various clients must be stopped;
7154 * either the HBA is in a state that it will never works on the outstanding
7155 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
7156 * mailbox command has been completed.
7159 lpfc_sli_mbox_sys_flush(struct lpfc_hba
*phba
)
7161 LIST_HEAD(completions
);
7162 struct lpfc_sli
*psli
= &phba
->sli
;
7164 unsigned long iflag
;
7166 /* Flush all the mailbox commands in the mbox system */
7167 spin_lock_irqsave(&phba
->hbalock
, iflag
);
7168 /* The pending mailbox command queue */
7169 list_splice_init(&phba
->sli
.mboxq
, &completions
);
7170 /* The outstanding active mailbox command */
7171 if (psli
->mbox_active
) {
7172 list_add_tail(&psli
->mbox_active
->list
, &completions
);
7173 psli
->mbox_active
= NULL
;
7174 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
7176 /* The completed mailbox command queue */
7177 list_splice_init(&phba
->sli
.mboxq_cmpl
, &completions
);
7178 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
7180 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
7181 while (!list_empty(&completions
)) {
7182 list_remove_head(&completions
, pmb
, LPFC_MBOXQ_t
, list
);
7183 pmb
->u
.mb
.mbxStatus
= MBX_NOT_FINISHED
;
7185 pmb
->mbox_cmpl(phba
, pmb
);
7190 * lpfc_sli_host_down - Vport cleanup function
7191 * @vport: Pointer to virtual port object.
7193 * lpfc_sli_host_down is called to clean up the resources
7194 * associated with a vport before destroying virtual
7195 * port data structures.
7196 * This function does following operations:
7197 * - Free discovery resources associated with this virtual
7199 * - Free iocbs associated with this virtual port in
7201 * - Send abort for all iocb commands associated with this
7204 * This function is called with no lock held and always returns 1.
7207 lpfc_sli_host_down(struct lpfc_vport
*vport
)
7209 LIST_HEAD(completions
);
7210 struct lpfc_hba
*phba
= vport
->phba
;
7211 struct lpfc_sli
*psli
= &phba
->sli
;
7212 struct lpfc_sli_ring
*pring
;
7213 struct lpfc_iocbq
*iocb
, *next_iocb
;
7215 unsigned long flags
= 0;
7216 uint16_t prev_pring_flag
;
7218 lpfc_cleanup_discovery_resources(vport
);
7220 spin_lock_irqsave(&phba
->hbalock
, flags
);
7221 for (i
= 0; i
< psli
->num_rings
; i
++) {
7222 pring
= &psli
->ring
[i
];
7223 prev_pring_flag
= pring
->flag
;
7224 /* Only slow rings */
7225 if (pring
->ringno
== LPFC_ELS_RING
) {
7226 pring
->flag
|= LPFC_DEFERRED_RING_EVENT
;
7227 /* Set the lpfc data pending flag */
7228 set_bit(LPFC_DATA_READY
, &phba
->data_flags
);
7231 * Error everything on the txq since these iocbs have not been
7232 * given to the FW yet.
7234 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txq
, list
) {
7235 if (iocb
->vport
!= vport
)
7237 list_move_tail(&iocb
->list
, &completions
);
7241 /* Next issue ABTS for everything on the txcmplq */
7242 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txcmplq
,
7244 if (iocb
->vport
!= vport
)
7246 lpfc_sli_issue_abort_iotag(phba
, pring
, iocb
);
7249 pring
->flag
= prev_pring_flag
;
7252 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
7254 /* Cancel all the IOCBs from the completions list */
7255 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
7261 * lpfc_sli_hba_down - Resource cleanup function for the HBA
7262 * @phba: Pointer to HBA context object.
7264 * This function cleans up all iocb, buffers, mailbox commands
7265 * while shutting down the HBA. This function is called with no
7266 * lock held and always returns 1.
7267 * This function does the following to cleanup driver resources:
7268 * - Free discovery resources for each virtual port
7269 * - Cleanup any pending fabric iocbs
7270 * - Iterate through the iocb txq and free each entry
7272 * - Free up any buffer posted to the HBA
7273 * - Free mailbox commands in the mailbox queue.
7276 lpfc_sli_hba_down(struct lpfc_hba
*phba
)
7278 LIST_HEAD(completions
);
7279 struct lpfc_sli
*psli
= &phba
->sli
;
7280 struct lpfc_sli_ring
*pring
;
7281 struct lpfc_dmabuf
*buf_ptr
;
7282 unsigned long flags
= 0;
7285 /* Shutdown the mailbox command sub-system */
7286 lpfc_sli_mbox_sys_shutdown(phba
);
7288 lpfc_hba_down_prep(phba
);
7290 lpfc_fabric_abort_hba(phba
);
7292 spin_lock_irqsave(&phba
->hbalock
, flags
);
7293 for (i
= 0; i
< psli
->num_rings
; i
++) {
7294 pring
= &psli
->ring
[i
];
7295 /* Only slow rings */
7296 if (pring
->ringno
== LPFC_ELS_RING
) {
7297 pring
->flag
|= LPFC_DEFERRED_RING_EVENT
;
7298 /* Set the lpfc data pending flag */
7299 set_bit(LPFC_DATA_READY
, &phba
->data_flags
);
7303 * Error everything on the txq since these iocbs have not been
7304 * given to the FW yet.
7306 list_splice_init(&pring
->txq
, &completions
);
7310 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
7312 /* Cancel all the IOCBs from the completions list */
7313 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
7316 spin_lock_irqsave(&phba
->hbalock
, flags
);
7317 list_splice_init(&phba
->elsbuf
, &completions
);
7318 phba
->elsbuf_cnt
= 0;
7319 phba
->elsbuf_prev_cnt
= 0;
7320 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
7322 while (!list_empty(&completions
)) {
7323 list_remove_head(&completions
, buf_ptr
,
7324 struct lpfc_dmabuf
, list
);
7325 lpfc_mbuf_free(phba
, buf_ptr
->virt
, buf_ptr
->phys
);
7329 /* Return any active mbox cmds */
7330 del_timer_sync(&psli
->mbox_tmo
);
7332 spin_lock_irqsave(&phba
->pport
->work_port_lock
, flags
);
7333 phba
->pport
->work_port_events
&= ~WORKER_MBOX_TMO
;
7334 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, flags
);
7340 * lpfc_sli_pcimem_bcopy - SLI memory copy function
7341 * @srcp: Source memory pointer.
7342 * @destp: Destination memory pointer.
7343 * @cnt: Number of words required to be copied.
7345 * This function is used for copying data between driver memory
7346 * and the SLI memory. This function also changes the endianness
7347 * of each word if native endianness is different from SLI
7348 * endianness. This function can be called with or without
7352 lpfc_sli_pcimem_bcopy(void *srcp
, void *destp
, uint32_t cnt
)
7354 uint32_t *src
= srcp
;
7355 uint32_t *dest
= destp
;
7359 for (i
= 0; i
< (int)cnt
; i
+= sizeof (uint32_t)) {
7361 ldata
= le32_to_cpu(ldata
);
7370 * lpfc_sli_bemem_bcopy - SLI memory copy function
7371 * @srcp: Source memory pointer.
7372 * @destp: Destination memory pointer.
7373 * @cnt: Number of words required to be copied.
7375 * This function is used for copying data between a data structure
7376 * with big endian representation to local endianness.
7377 * This function can be called with or without lock.
7380 lpfc_sli_bemem_bcopy(void *srcp
, void *destp
, uint32_t cnt
)
7382 uint32_t *src
= srcp
;
7383 uint32_t *dest
= destp
;
7387 for (i
= 0; i
< (int)cnt
; i
+= sizeof(uint32_t)) {
7389 ldata
= be32_to_cpu(ldata
);
7397 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
7398 * @phba: Pointer to HBA context object.
7399 * @pring: Pointer to driver SLI ring object.
7400 * @mp: Pointer to driver buffer object.
7402 * This function is called with no lock held.
7403 * It always return zero after adding the buffer to the postbufq
7407 lpfc_sli_ringpostbuf_put(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
7408 struct lpfc_dmabuf
*mp
)
7410 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
7412 spin_lock_irq(&phba
->hbalock
);
7413 list_add_tail(&mp
->list
, &pring
->postbufq
);
7414 pring
->postbufq_cnt
++;
7415 spin_unlock_irq(&phba
->hbalock
);
7420 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
7421 * @phba: Pointer to HBA context object.
7423 * When HBQ is enabled, buffers are searched based on tags. This function
7424 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
7425 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
7426 * does not conflict with tags of buffer posted for unsolicited events.
7427 * The function returns the allocated tag. The function is called with
7431 lpfc_sli_get_buffer_tag(struct lpfc_hba
*phba
)
7433 spin_lock_irq(&phba
->hbalock
);
7434 phba
->buffer_tag_count
++;
7436 * Always set the QUE_BUFTAG_BIT to distiguish between
7437 * a tag assigned by HBQ.
7439 phba
->buffer_tag_count
|= QUE_BUFTAG_BIT
;
7440 spin_unlock_irq(&phba
->hbalock
);
7441 return phba
->buffer_tag_count
;
7445 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
7446 * @phba: Pointer to HBA context object.
7447 * @pring: Pointer to driver SLI ring object.
7450 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
7451 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
7452 * iocb is posted to the response ring with the tag of the buffer.
7453 * This function searches the pring->postbufq list using the tag
7454 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
7455 * iocb. If the buffer is found then lpfc_dmabuf object of the
7456 * buffer is returned to the caller else NULL is returned.
7457 * This function is called with no lock held.
7459 struct lpfc_dmabuf
*
7460 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
7463 struct lpfc_dmabuf
*mp
, *next_mp
;
7464 struct list_head
*slp
= &pring
->postbufq
;
7466 /* Search postbufq, from the begining, looking for a match on tag */
7467 spin_lock_irq(&phba
->hbalock
);
7468 list_for_each_entry_safe(mp
, next_mp
, &pring
->postbufq
, list
) {
7469 if (mp
->buffer_tag
== tag
) {
7470 list_del_init(&mp
->list
);
7471 pring
->postbufq_cnt
--;
7472 spin_unlock_irq(&phba
->hbalock
);
7477 spin_unlock_irq(&phba
->hbalock
);
7478 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7479 "0402 Cannot find virtual addr for buffer tag on "
7480 "ring %d Data x%lx x%p x%p x%x\n",
7481 pring
->ringno
, (unsigned long) tag
,
7482 slp
->next
, slp
->prev
, pring
->postbufq_cnt
);
7488 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
7489 * @phba: Pointer to HBA context object.
7490 * @pring: Pointer to driver SLI ring object.
7491 * @phys: DMA address of the buffer.
7493 * This function searches the buffer list using the dma_address
7494 * of unsolicited event to find the driver's lpfc_dmabuf object
7495 * corresponding to the dma_address. The function returns the
7496 * lpfc_dmabuf object if a buffer is found else it returns NULL.
7497 * This function is called by the ct and els unsolicited event
7498 * handlers to get the buffer associated with the unsolicited
7501 * This function is called with no lock held.
7503 struct lpfc_dmabuf
*
7504 lpfc_sli_ringpostbuf_get(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
7507 struct lpfc_dmabuf
*mp
, *next_mp
;
7508 struct list_head
*slp
= &pring
->postbufq
;
7510 /* Search postbufq, from the begining, looking for a match on phys */
7511 spin_lock_irq(&phba
->hbalock
);
7512 list_for_each_entry_safe(mp
, next_mp
, &pring
->postbufq
, list
) {
7513 if (mp
->phys
== phys
) {
7514 list_del_init(&mp
->list
);
7515 pring
->postbufq_cnt
--;
7516 spin_unlock_irq(&phba
->hbalock
);
7521 spin_unlock_irq(&phba
->hbalock
);
7522 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7523 "0410 Cannot find virtual addr for mapped buf on "
7524 "ring %d Data x%llx x%p x%p x%x\n",
7525 pring
->ringno
, (unsigned long long)phys
,
7526 slp
->next
, slp
->prev
, pring
->postbufq_cnt
);
7531 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
7532 * @phba: Pointer to HBA context object.
7533 * @cmdiocb: Pointer to driver command iocb object.
7534 * @rspiocb: Pointer to driver response iocb object.
7536 * This function is the completion handler for the abort iocbs for
7537 * ELS commands. This function is called from the ELS ring event
7538 * handler with no lock held. This function frees memory resources
7539 * associated with the abort iocb.
7542 lpfc_sli_abort_els_cmpl(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
7543 struct lpfc_iocbq
*rspiocb
)
7545 IOCB_t
*irsp
= &rspiocb
->iocb
;
7546 uint16_t abort_iotag
, abort_context
;
7547 struct lpfc_iocbq
*abort_iocb
;
7548 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
7552 if (irsp
->ulpStatus
) {
7553 abort_context
= cmdiocb
->iocb
.un
.acxri
.abortContextTag
;
7554 abort_iotag
= cmdiocb
->iocb
.un
.acxri
.abortIoTag
;
7556 spin_lock_irq(&phba
->hbalock
);
7557 if (phba
->sli_rev
< LPFC_SLI_REV4
) {
7558 if (abort_iotag
!= 0 &&
7559 abort_iotag
<= phba
->sli
.last_iotag
)
7561 phba
->sli
.iocbq_lookup
[abort_iotag
];
7563 /* For sli4 the abort_tag is the XRI,
7564 * so the abort routine puts the iotag of the iocb
7565 * being aborted in the context field of the abort
7568 abort_iocb
= phba
->sli
.iocbq_lookup
[abort_context
];
7571 * If the iocb is not found in Firmware queue the iocb
7572 * might have completed already. Do not free it again.
7574 if (irsp
->ulpStatus
== IOSTAT_LOCAL_REJECT
) {
7575 if (irsp
->un
.ulpWord
[4] != IOERR_NO_XRI
) {
7576 spin_unlock_irq(&phba
->hbalock
);
7577 lpfc_sli_release_iocbq(phba
, cmdiocb
);
7580 /* For SLI4 the ulpContext field for abort IOCB
7581 * holds the iotag of the IOCB being aborted so
7582 * the local abort_context needs to be reset to
7583 * match the aborted IOCBs ulpContext.
7585 if (abort_iocb
&& phba
->sli_rev
== LPFC_SLI_REV4
)
7586 abort_context
= abort_iocb
->iocb
.ulpContext
;
7589 lpfc_printf_log(phba
, KERN_WARNING
, LOG_ELS
| LOG_SLI
,
7590 "0327 Cannot abort els iocb %p "
7591 "with tag %x context %x, abort status %x, "
7593 abort_iocb
, abort_iotag
, abort_context
,
7594 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4]);
7596 * make sure we have the right iocbq before taking it
7597 * off the txcmplq and try to call completion routine.
7600 abort_iocb
->iocb
.ulpContext
!= abort_context
||
7601 (abort_iocb
->iocb_flag
& LPFC_DRIVER_ABORTED
) == 0)
7602 spin_unlock_irq(&phba
->hbalock
);
7603 else if (phba
->sli_rev
< LPFC_SLI_REV4
) {
7605 * leave the SLI4 aborted command on the txcmplq
7606 * list and the command complete WCQE's XB bit
7607 * will tell whether the SGL (XRI) can be released
7608 * immediately or to the aborted SGL list for the
7609 * following abort XRI from the HBA.
7611 list_del_init(&abort_iocb
->list
);
7612 if (abort_iocb
->iocb_flag
& LPFC_IO_ON_Q
) {
7613 abort_iocb
->iocb_flag
&= ~LPFC_IO_ON_Q
;
7614 pring
->txcmplq_cnt
--;
7617 /* Firmware could still be in progress of DMAing
7618 * payload, so don't free data buffer till after
7621 abort_iocb
->iocb_flag
|= LPFC_DELAY_MEM_FREE
;
7622 abort_iocb
->iocb_flag
&= ~LPFC_DRIVER_ABORTED
;
7623 spin_unlock_irq(&phba
->hbalock
);
7625 abort_iocb
->iocb
.ulpStatus
= IOSTAT_LOCAL_REJECT
;
7626 abort_iocb
->iocb
.un
.ulpWord
[4] = IOERR_ABORT_REQUESTED
;
7627 (abort_iocb
->iocb_cmpl
)(phba
, abort_iocb
, abort_iocb
);
7629 spin_unlock_irq(&phba
->hbalock
);
7632 lpfc_sli_release_iocbq(phba
, cmdiocb
);
7637 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
7638 * @phba: Pointer to HBA context object.
7639 * @cmdiocb: Pointer to driver command iocb object.
7640 * @rspiocb: Pointer to driver response iocb object.
7642 * The function is called from SLI ring event handler with no
7643 * lock held. This function is the completion handler for ELS commands
7644 * which are aborted. The function frees memory resources used for
7645 * the aborted ELS commands.
7648 lpfc_ignore_els_cmpl(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
7649 struct lpfc_iocbq
*rspiocb
)
7651 IOCB_t
*irsp
= &rspiocb
->iocb
;
7653 /* ELS cmd tag <ulpIoTag> completes */
7654 lpfc_printf_log(phba
, KERN_INFO
, LOG_ELS
,
7655 "0139 Ignoring ELS cmd tag x%x completion Data: "
7657 irsp
->ulpIoTag
, irsp
->ulpStatus
,
7658 irsp
->un
.ulpWord
[4], irsp
->ulpTimeout
);
7659 if (cmdiocb
->iocb
.ulpCommand
== CMD_GEN_REQUEST64_CR
)
7660 lpfc_ct_free_iocb(phba
, cmdiocb
);
7662 lpfc_els_free_iocb(phba
, cmdiocb
);
7667 * lpfc_sli_abort_iotag_issue - Issue abort for a command iocb
7668 * @phba: Pointer to HBA context object.
7669 * @pring: Pointer to driver SLI ring object.
7670 * @cmdiocb: Pointer to driver command iocb object.
7672 * This function issues an abort iocb for the provided command iocb down to
7673 * the port. Other than the case the outstanding command iocb is an abort
7674 * request, this function issues abort out unconditionally. This function is
7675 * called with hbalock held. The function returns 0 when it fails due to
7676 * memory allocation failure or when the command iocb is an abort request.
7679 lpfc_sli_abort_iotag_issue(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
7680 struct lpfc_iocbq
*cmdiocb
)
7682 struct lpfc_vport
*vport
= cmdiocb
->vport
;
7683 struct lpfc_iocbq
*abtsiocbp
;
7684 IOCB_t
*icmd
= NULL
;
7685 IOCB_t
*iabt
= NULL
;
7689 * There are certain command types we don't want to abort. And we
7690 * don't want to abort commands that are already in the process of
7693 icmd
= &cmdiocb
->iocb
;
7694 if (icmd
->ulpCommand
== CMD_ABORT_XRI_CN
||
7695 icmd
->ulpCommand
== CMD_CLOSE_XRI_CN
||
7696 (cmdiocb
->iocb_flag
& LPFC_DRIVER_ABORTED
) != 0)
7699 /* issue ABTS for this IOCB based on iotag */
7700 abtsiocbp
= __lpfc_sli_get_iocbq(phba
);
7701 if (abtsiocbp
== NULL
)
7704 /* This signals the response to set the correct status
7705 * before calling the completion handler
7707 cmdiocb
->iocb_flag
|= LPFC_DRIVER_ABORTED
;
7709 iabt
= &abtsiocbp
->iocb
;
7710 iabt
->un
.acxri
.abortType
= ABORT_TYPE_ABTS
;
7711 iabt
->un
.acxri
.abortContextTag
= icmd
->ulpContext
;
7712 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
7713 iabt
->un
.acxri
.abortIoTag
= cmdiocb
->sli4_xritag
;
7714 iabt
->un
.acxri
.abortContextTag
= cmdiocb
->iotag
;
7717 iabt
->un
.acxri
.abortIoTag
= icmd
->ulpIoTag
;
7719 iabt
->ulpClass
= icmd
->ulpClass
;
7721 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
7722 abtsiocbp
->fcp_wqidx
= cmdiocb
->fcp_wqidx
;
7723 if (cmdiocb
->iocb_flag
& LPFC_IO_FCP
)
7724 abtsiocbp
->iocb_flag
|= LPFC_USE_FCPWQIDX
;
7726 if (phba
->link_state
>= LPFC_LINK_UP
)
7727 iabt
->ulpCommand
= CMD_ABORT_XRI_CN
;
7729 iabt
->ulpCommand
= CMD_CLOSE_XRI_CN
;
7731 abtsiocbp
->iocb_cmpl
= lpfc_sli_abort_els_cmpl
;
7733 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_SLI
,
7734 "0339 Abort xri x%x, original iotag x%x, "
7735 "abort cmd iotag x%x\n",
7736 iabt
->un
.acxri
.abortIoTag
,
7737 iabt
->un
.acxri
.abortContextTag
,
7739 retval
= __lpfc_sli_issue_iocb(phba
, pring
->ringno
, abtsiocbp
, 0);
7742 __lpfc_sli_release_iocbq(phba
, abtsiocbp
);
7745 * Caller to this routine should check for IOCB_ERROR
7746 * and handle it properly. This routine no longer removes
7747 * iocb off txcmplq and call compl in case of IOCB_ERROR.
7753 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
7754 * @phba: Pointer to HBA context object.
7755 * @pring: Pointer to driver SLI ring object.
7756 * @cmdiocb: Pointer to driver command iocb object.
7758 * This function issues an abort iocb for the provided command iocb. In case
7759 * of unloading, the abort iocb will not be issued to commands on the ELS
7760 * ring. Instead, the callback function shall be changed to those commands
7761 * so that nothing happens when them finishes. This function is called with
7762 * hbalock held. The function returns 0 when the command iocb is an abort
7766 lpfc_sli_issue_abort_iotag(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
7767 struct lpfc_iocbq
*cmdiocb
)
7769 struct lpfc_vport
*vport
= cmdiocb
->vport
;
7770 int retval
= IOCB_ERROR
;
7771 IOCB_t
*icmd
= NULL
;
7774 * There are certain command types we don't want to abort. And we
7775 * don't want to abort commands that are already in the process of
7778 icmd
= &cmdiocb
->iocb
;
7779 if (icmd
->ulpCommand
== CMD_ABORT_XRI_CN
||
7780 icmd
->ulpCommand
== CMD_CLOSE_XRI_CN
||
7781 (cmdiocb
->iocb_flag
& LPFC_DRIVER_ABORTED
) != 0)
7785 * If we're unloading, don't abort iocb on the ELS ring, but change
7786 * the callback so that nothing happens when it finishes.
7788 if ((vport
->load_flag
& FC_UNLOADING
) &&
7789 (pring
->ringno
== LPFC_ELS_RING
)) {
7790 if (cmdiocb
->iocb_flag
& LPFC_IO_FABRIC
)
7791 cmdiocb
->fabric_iocb_cmpl
= lpfc_ignore_els_cmpl
;
7793 cmdiocb
->iocb_cmpl
= lpfc_ignore_els_cmpl
;
7794 goto abort_iotag_exit
;
7797 /* Now, we try to issue the abort to the cmdiocb out */
7798 retval
= lpfc_sli_abort_iotag_issue(phba
, pring
, cmdiocb
);
7802 * Caller to this routine should check for IOCB_ERROR
7803 * and handle it properly. This routine no longer removes
7804 * iocb off txcmplq and call compl in case of IOCB_ERROR.
7810 * lpfc_sli_iocb_ring_abort - Unconditionally abort all iocbs on an iocb ring
7811 * @phba: Pointer to HBA context object.
7812 * @pring: Pointer to driver SLI ring object.
7814 * This function aborts all iocbs in the given ring and frees all the iocb
7815 * objects in txq. This function issues abort iocbs unconditionally for all
7816 * the iocb commands in txcmplq. The iocbs in the txcmplq is not guaranteed
7817 * to complete before the return of this function. The caller is not required
7818 * to hold any locks.
7821 lpfc_sli_iocb_ring_abort(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
7823 LIST_HEAD(completions
);
7824 struct lpfc_iocbq
*iocb
, *next_iocb
;
7826 if (pring
->ringno
== LPFC_ELS_RING
)
7827 lpfc_fabric_abort_hba(phba
);
7829 spin_lock_irq(&phba
->hbalock
);
7831 /* Take off all the iocbs on txq for cancelling */
7832 list_splice_init(&pring
->txq
, &completions
);
7835 /* Next issue ABTS for everything on the txcmplq */
7836 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txcmplq
, list
)
7837 lpfc_sli_abort_iotag_issue(phba
, pring
, iocb
);
7839 spin_unlock_irq(&phba
->hbalock
);
7841 /* Cancel all the IOCBs from the completions list */
7842 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
7847 * lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
7848 * @phba: pointer to lpfc HBA data structure.
7850 * This routine will abort all pending and outstanding iocbs to an HBA.
7853 lpfc_sli_hba_iocb_abort(struct lpfc_hba
*phba
)
7855 struct lpfc_sli
*psli
= &phba
->sli
;
7856 struct lpfc_sli_ring
*pring
;
7859 for (i
= 0; i
< psli
->num_rings
; i
++) {
7860 pring
= &psli
->ring
[i
];
7861 lpfc_sli_iocb_ring_abort(phba
, pring
);
7866 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
7867 * @iocbq: Pointer to driver iocb object.
7868 * @vport: Pointer to driver virtual port object.
7869 * @tgt_id: SCSI ID of the target.
7870 * @lun_id: LUN ID of the scsi device.
7871 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
7873 * This function acts as an iocb filter for functions which abort or count
7874 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
7875 * 0 if the filtering criteria is met for the given iocb and will return
7876 * 1 if the filtering criteria is not met.
7877 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
7878 * given iocb is for the SCSI device specified by vport, tgt_id and
7880 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
7881 * given iocb is for the SCSI target specified by vport and tgt_id
7883 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
7884 * given iocb is for the SCSI host associated with the given vport.
7885 * This function is called with no locks held.
7888 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq
*iocbq
, struct lpfc_vport
*vport
,
7889 uint16_t tgt_id
, uint64_t lun_id
,
7890 lpfc_ctx_cmd ctx_cmd
)
7892 struct lpfc_scsi_buf
*lpfc_cmd
;
7895 if (!(iocbq
->iocb_flag
& LPFC_IO_FCP
))
7898 if (iocbq
->vport
!= vport
)
7901 lpfc_cmd
= container_of(iocbq
, struct lpfc_scsi_buf
, cur_iocbq
);
7903 if (lpfc_cmd
->pCmd
== NULL
)
7908 if ((lpfc_cmd
->rdata
->pnode
) &&
7909 (lpfc_cmd
->rdata
->pnode
->nlp_sid
== tgt_id
) &&
7910 (scsilun_to_int(&lpfc_cmd
->fcp_cmnd
->fcp_lun
) == lun_id
))
7914 if ((lpfc_cmd
->rdata
->pnode
) &&
7915 (lpfc_cmd
->rdata
->pnode
->nlp_sid
== tgt_id
))
7922 printk(KERN_ERR
"%s: Unknown context cmd type, value %d\n",
7931 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
7932 * @vport: Pointer to virtual port.
7933 * @tgt_id: SCSI ID of the target.
7934 * @lun_id: LUN ID of the scsi device.
7935 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
7937 * This function returns number of FCP commands pending for the vport.
7938 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
7939 * commands pending on the vport associated with SCSI device specified
7940 * by tgt_id and lun_id parameters.
7941 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
7942 * commands pending on the vport associated with SCSI target specified
7943 * by tgt_id parameter.
7944 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
7945 * commands pending on the vport.
7946 * This function returns the number of iocbs which satisfy the filter.
7947 * This function is called without any lock held.
7950 lpfc_sli_sum_iocb(struct lpfc_vport
*vport
, uint16_t tgt_id
, uint64_t lun_id
,
7951 lpfc_ctx_cmd ctx_cmd
)
7953 struct lpfc_hba
*phba
= vport
->phba
;
7954 struct lpfc_iocbq
*iocbq
;
7957 for (i
= 1, sum
= 0; i
<= phba
->sli
.last_iotag
; i
++) {
7958 iocbq
= phba
->sli
.iocbq_lookup
[i
];
7960 if (lpfc_sli_validate_fcp_iocb (iocbq
, vport
, tgt_id
, lun_id
,
7969 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
7970 * @phba: Pointer to HBA context object
7971 * @cmdiocb: Pointer to command iocb object.
7972 * @rspiocb: Pointer to response iocb object.
7974 * This function is called when an aborted FCP iocb completes. This
7975 * function is called by the ring event handler with no lock held.
7976 * This function frees the iocb.
7979 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
7980 struct lpfc_iocbq
*rspiocb
)
7982 lpfc_sli_release_iocbq(phba
, cmdiocb
);
7987 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
7988 * @vport: Pointer to virtual port.
7989 * @pring: Pointer to driver SLI ring object.
7990 * @tgt_id: SCSI ID of the target.
7991 * @lun_id: LUN ID of the scsi device.
7992 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
7994 * This function sends an abort command for every SCSI command
7995 * associated with the given virtual port pending on the ring
7996 * filtered by lpfc_sli_validate_fcp_iocb function.
7997 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
7998 * FCP iocbs associated with lun specified by tgt_id and lun_id
8000 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
8001 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
8002 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
8003 * FCP iocbs associated with virtual port.
8004 * This function returns number of iocbs it failed to abort.
8005 * This function is called with no locks held.
8008 lpfc_sli_abort_iocb(struct lpfc_vport
*vport
, struct lpfc_sli_ring
*pring
,
8009 uint16_t tgt_id
, uint64_t lun_id
, lpfc_ctx_cmd abort_cmd
)
8011 struct lpfc_hba
*phba
= vport
->phba
;
8012 struct lpfc_iocbq
*iocbq
;
8013 struct lpfc_iocbq
*abtsiocb
;
8015 int errcnt
= 0, ret_val
= 0;
8018 for (i
= 1; i
<= phba
->sli
.last_iotag
; i
++) {
8019 iocbq
= phba
->sli
.iocbq_lookup
[i
];
8021 if (lpfc_sli_validate_fcp_iocb(iocbq
, vport
, tgt_id
, lun_id
,
8025 /* issue ABTS for this IOCB based on iotag */
8026 abtsiocb
= lpfc_sli_get_iocbq(phba
);
8027 if (abtsiocb
== NULL
) {
8033 abtsiocb
->iocb
.un
.acxri
.abortType
= ABORT_TYPE_ABTS
;
8034 abtsiocb
->iocb
.un
.acxri
.abortContextTag
= cmd
->ulpContext
;
8035 if (phba
->sli_rev
== LPFC_SLI_REV4
)
8036 abtsiocb
->iocb
.un
.acxri
.abortIoTag
= iocbq
->sli4_xritag
;
8038 abtsiocb
->iocb
.un
.acxri
.abortIoTag
= cmd
->ulpIoTag
;
8039 abtsiocb
->iocb
.ulpLe
= 1;
8040 abtsiocb
->iocb
.ulpClass
= cmd
->ulpClass
;
8041 abtsiocb
->vport
= phba
->pport
;
8043 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
8044 abtsiocb
->fcp_wqidx
= iocbq
->fcp_wqidx
;
8045 if (iocbq
->iocb_flag
& LPFC_IO_FCP
)
8046 abtsiocb
->iocb_flag
|= LPFC_USE_FCPWQIDX
;
8048 if (lpfc_is_link_up(phba
))
8049 abtsiocb
->iocb
.ulpCommand
= CMD_ABORT_XRI_CN
;
8051 abtsiocb
->iocb
.ulpCommand
= CMD_CLOSE_XRI_CN
;
8053 /* Setup callback routine and issue the command. */
8054 abtsiocb
->iocb_cmpl
= lpfc_sli_abort_fcp_cmpl
;
8055 ret_val
= lpfc_sli_issue_iocb(phba
, pring
->ringno
,
8057 if (ret_val
== IOCB_ERROR
) {
8058 lpfc_sli_release_iocbq(phba
, abtsiocb
);
8068 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
8069 * @phba: Pointer to HBA context object.
8070 * @cmdiocbq: Pointer to command iocb.
8071 * @rspiocbq: Pointer to response iocb.
8073 * This function is the completion handler for iocbs issued using
8074 * lpfc_sli_issue_iocb_wait function. This function is called by the
8075 * ring event handler function without any lock held. This function
8076 * can be called from both worker thread context and interrupt
8077 * context. This function also can be called from other thread which
8078 * cleans up the SLI layer objects.
8079 * This function copy the contents of the response iocb to the
8080 * response iocb memory object provided by the caller of
8081 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
8082 * sleeps for the iocb completion.
8085 lpfc_sli_wake_iocb_wait(struct lpfc_hba
*phba
,
8086 struct lpfc_iocbq
*cmdiocbq
,
8087 struct lpfc_iocbq
*rspiocbq
)
8089 wait_queue_head_t
*pdone_q
;
8090 unsigned long iflags
;
8091 struct lpfc_scsi_buf
*lpfc_cmd
;
8093 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8094 cmdiocbq
->iocb_flag
|= LPFC_IO_WAKE
;
8095 if (cmdiocbq
->context2
&& rspiocbq
)
8096 memcpy(&((struct lpfc_iocbq
*)cmdiocbq
->context2
)->iocb
,
8097 &rspiocbq
->iocb
, sizeof(IOCB_t
));
8099 /* Set the exchange busy flag for task management commands */
8100 if ((cmdiocbq
->iocb_flag
& LPFC_IO_FCP
) &&
8101 !(cmdiocbq
->iocb_flag
& LPFC_IO_LIBDFC
)) {
8102 lpfc_cmd
= container_of(cmdiocbq
, struct lpfc_scsi_buf
,
8104 lpfc_cmd
->exch_busy
= rspiocbq
->iocb_flag
& LPFC_EXCHANGE_BUSY
;
8107 pdone_q
= cmdiocbq
->context_un
.wait_queue
;
8110 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8115 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
8116 * @phba: Pointer to HBA context object..
8117 * @piocbq: Pointer to command iocb.
8118 * @flag: Flag to test.
8120 * This routine grabs the hbalock and then test the iocb_flag to
8121 * see if the passed in flag is set.
8124 * 0 if flag is not set.
8127 lpfc_chk_iocb_flg(struct lpfc_hba
*phba
,
8128 struct lpfc_iocbq
*piocbq
, uint32_t flag
)
8130 unsigned long iflags
;
8133 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8134 ret
= piocbq
->iocb_flag
& flag
;
8135 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8141 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
8142 * @phba: Pointer to HBA context object..
8143 * @pring: Pointer to sli ring.
8144 * @piocb: Pointer to command iocb.
8145 * @prspiocbq: Pointer to response iocb.
8146 * @timeout: Timeout in number of seconds.
8148 * This function issues the iocb to firmware and waits for the
8149 * iocb to complete. If the iocb command is not
8150 * completed within timeout seconds, it returns IOCB_TIMEDOUT.
8151 * Caller should not free the iocb resources if this function
8152 * returns IOCB_TIMEDOUT.
8153 * The function waits for the iocb completion using an
8154 * non-interruptible wait.
8155 * This function will sleep while waiting for iocb completion.
8156 * So, this function should not be called from any context which
8157 * does not allow sleeping. Due to the same reason, this function
8158 * cannot be called with interrupt disabled.
8159 * This function assumes that the iocb completions occur while
8160 * this function sleep. So, this function cannot be called from
8161 * the thread which process iocb completion for this ring.
8162 * This function clears the iocb_flag of the iocb object before
8163 * issuing the iocb and the iocb completion handler sets this
8164 * flag and wakes this thread when the iocb completes.
8165 * The contents of the response iocb will be copied to prspiocbq
8166 * by the completion handler when the command completes.
8167 * This function returns IOCB_SUCCESS when success.
8168 * This function is called with no lock held.
8171 lpfc_sli_issue_iocb_wait(struct lpfc_hba
*phba
,
8172 uint32_t ring_number
,
8173 struct lpfc_iocbq
*piocb
,
8174 struct lpfc_iocbq
*prspiocbq
,
8177 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q
);
8178 long timeleft
, timeout_req
= 0;
8179 int retval
= IOCB_SUCCESS
;
8181 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
8183 * If the caller has provided a response iocbq buffer, then context2
8184 * is NULL or its an error.
8187 if (piocb
->context2
)
8189 piocb
->context2
= prspiocbq
;
8192 piocb
->iocb_cmpl
= lpfc_sli_wake_iocb_wait
;
8193 piocb
->context_un
.wait_queue
= &done_q
;
8194 piocb
->iocb_flag
&= ~LPFC_IO_WAKE
;
8196 if (phba
->cfg_poll
& DISABLE_FCP_RING_INT
) {
8197 creg_val
= readl(phba
->HCregaddr
);
8198 creg_val
|= (HC_R0INT_ENA
<< LPFC_FCP_RING
);
8199 writel(creg_val
, phba
->HCregaddr
);
8200 readl(phba
->HCregaddr
); /* flush */
8203 retval
= lpfc_sli_issue_iocb(phba
, ring_number
, piocb
,
8205 if (retval
== IOCB_SUCCESS
) {
8206 timeout_req
= timeout
* HZ
;
8207 timeleft
= wait_event_timeout(done_q
,
8208 lpfc_chk_iocb_flg(phba
, piocb
, LPFC_IO_WAKE
),
8211 if (piocb
->iocb_flag
& LPFC_IO_WAKE
) {
8212 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
8213 "0331 IOCB wake signaled\n");
8214 } else if (timeleft
== 0) {
8215 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
8216 "0338 IOCB wait timeout error - no "
8217 "wake response Data x%x\n", timeout
);
8218 retval
= IOCB_TIMEDOUT
;
8220 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
8221 "0330 IOCB wake NOT set, "
8223 timeout
, (timeleft
/ jiffies
));
8224 retval
= IOCB_TIMEDOUT
;
8226 } else if (retval
== IOCB_BUSY
) {
8227 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
8228 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
8229 phba
->iocb_cnt
, pring
->txq_cnt
, pring
->txcmplq_cnt
);
8232 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
8233 "0332 IOCB wait issue failed, Data x%x\n",
8235 retval
= IOCB_ERROR
;
8238 if (phba
->cfg_poll
& DISABLE_FCP_RING_INT
) {
8239 creg_val
= readl(phba
->HCregaddr
);
8240 creg_val
&= ~(HC_R0INT_ENA
<< LPFC_FCP_RING
);
8241 writel(creg_val
, phba
->HCregaddr
);
8242 readl(phba
->HCregaddr
); /* flush */
8246 piocb
->context2
= NULL
;
8248 piocb
->context_un
.wait_queue
= NULL
;
8249 piocb
->iocb_cmpl
= NULL
;
8254 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
8255 * @phba: Pointer to HBA context object.
8256 * @pmboxq: Pointer to driver mailbox object.
8257 * @timeout: Timeout in number of seconds.
8259 * This function issues the mailbox to firmware and waits for the
8260 * mailbox command to complete. If the mailbox command is not
8261 * completed within timeout seconds, it returns MBX_TIMEOUT.
8262 * The function waits for the mailbox completion using an
8263 * interruptible wait. If the thread is woken up due to a
8264 * signal, MBX_TIMEOUT error is returned to the caller. Caller
8265 * should not free the mailbox resources, if this function returns
8267 * This function will sleep while waiting for mailbox completion.
8268 * So, this function should not be called from any context which
8269 * does not allow sleeping. Due to the same reason, this function
8270 * cannot be called with interrupt disabled.
8271 * This function assumes that the mailbox completion occurs while
8272 * this function sleep. So, this function cannot be called from
8273 * the worker thread which processes mailbox completion.
8274 * This function is called in the context of HBA management
8276 * This function returns MBX_SUCCESS when successful.
8277 * This function is called with no lock held.
8280 lpfc_sli_issue_mbox_wait(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmboxq
,
8283 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q
);
8287 /* The caller must leave context1 empty. */
8288 if (pmboxq
->context1
)
8289 return MBX_NOT_FINISHED
;
8291 pmboxq
->mbox_flag
&= ~LPFC_MBX_WAKE
;
8292 /* setup wake call as IOCB callback */
8293 pmboxq
->mbox_cmpl
= lpfc_sli_wake_mbox_wait
;
8294 /* setup context field to pass wait_queue pointer to wake function */
8295 pmboxq
->context1
= &done_q
;
8297 /* now issue the command */
8298 retval
= lpfc_sli_issue_mbox(phba
, pmboxq
, MBX_NOWAIT
);
8300 if (retval
== MBX_BUSY
|| retval
== MBX_SUCCESS
) {
8301 wait_event_interruptible_timeout(done_q
,
8302 pmboxq
->mbox_flag
& LPFC_MBX_WAKE
,
8305 spin_lock_irqsave(&phba
->hbalock
, flag
);
8306 pmboxq
->context1
= NULL
;
8308 * if LPFC_MBX_WAKE flag is set the mailbox is completed
8309 * else do not free the resources.
8311 if (pmboxq
->mbox_flag
& LPFC_MBX_WAKE
) {
8312 retval
= MBX_SUCCESS
;
8313 lpfc_sli4_swap_str(phba
, pmboxq
);
8315 retval
= MBX_TIMEOUT
;
8316 pmboxq
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
8318 spin_unlock_irqrestore(&phba
->hbalock
, flag
);
8325 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
8326 * @phba: Pointer to HBA context.
8328 * This function is called to shutdown the driver's mailbox sub-system.
8329 * It first marks the mailbox sub-system is in a block state to prevent
8330 * the asynchronous mailbox command from issued off the pending mailbox
8331 * command queue. If the mailbox command sub-system shutdown is due to
8332 * HBA error conditions such as EEH or ERATT, this routine shall invoke
8333 * the mailbox sub-system flush routine to forcefully bring down the
8334 * mailbox sub-system. Otherwise, if it is due to normal condition (such
8335 * as with offline or HBA function reset), this routine will wait for the
8336 * outstanding mailbox command to complete before invoking the mailbox
8337 * sub-system flush routine to gracefully bring down mailbox sub-system.
8340 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba
*phba
)
8342 struct lpfc_sli
*psli
= &phba
->sli
;
8343 uint8_t actcmd
= MBX_HEARTBEAT
;
8344 unsigned long timeout
;
8346 spin_lock_irq(&phba
->hbalock
);
8347 psli
->sli_flag
|= LPFC_SLI_ASYNC_MBX_BLK
;
8348 spin_unlock_irq(&phba
->hbalock
);
8350 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
8351 spin_lock_irq(&phba
->hbalock
);
8352 if (phba
->sli
.mbox_active
)
8353 actcmd
= phba
->sli
.mbox_active
->u
.mb
.mbxCommand
;
8354 spin_unlock_irq(&phba
->hbalock
);
8355 /* Determine how long we might wait for the active mailbox
8356 * command to be gracefully completed by firmware.
8358 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
, actcmd
) *
8360 while (phba
->sli
.mbox_active
) {
8361 /* Check active mailbox complete status every 2ms */
8363 if (time_after(jiffies
, timeout
))
8364 /* Timeout, let the mailbox flush routine to
8365 * forcefully release active mailbox command
8370 lpfc_sli_mbox_sys_flush(phba
);
8374 * lpfc_sli_eratt_read - read sli-3 error attention events
8375 * @phba: Pointer to HBA context.
8377 * This function is called to read the SLI3 device error attention registers
8378 * for possible error attention events. The caller must hold the hostlock
8379 * with spin_lock_irq().
8381 * This fucntion returns 1 when there is Error Attention in the Host Attention
8382 * Register and returns 0 otherwise.
8385 lpfc_sli_eratt_read(struct lpfc_hba
*phba
)
8389 /* Read chip Host Attention (HA) register */
8390 ha_copy
= readl(phba
->HAregaddr
);
8391 if (ha_copy
& HA_ERATT
) {
8392 /* Read host status register to retrieve error event */
8393 lpfc_sli_read_hs(phba
);
8395 /* Check if there is a deferred error condition is active */
8396 if ((HS_FFER1
& phba
->work_hs
) &&
8397 ((HS_FFER2
| HS_FFER3
| HS_FFER4
| HS_FFER5
|
8398 HS_FFER6
| HS_FFER7
| HS_FFER8
) & phba
->work_hs
)) {
8399 phba
->hba_flag
|= DEFER_ERATT
;
8400 /* Clear all interrupt enable conditions */
8401 writel(0, phba
->HCregaddr
);
8402 readl(phba
->HCregaddr
);
8405 /* Set the driver HA work bitmap */
8406 phba
->work_ha
|= HA_ERATT
;
8407 /* Indicate polling handles this ERATT */
8408 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
8415 * lpfc_sli4_eratt_read - read sli-4 error attention events
8416 * @phba: Pointer to HBA context.
8418 * This function is called to read the SLI4 device error attention registers
8419 * for possible error attention events. The caller must hold the hostlock
8420 * with spin_lock_irq().
8422 * This fucntion returns 1 when there is Error Attention in the Host Attention
8423 * Register and returns 0 otherwise.
8426 lpfc_sli4_eratt_read(struct lpfc_hba
*phba
)
8428 uint32_t uerr_sta_hi
, uerr_sta_lo
;
8429 uint32_t if_type
, portsmphr
;
8430 struct lpfc_register portstat_reg
;
8433 * For now, use the SLI4 device internal unrecoverable error
8434 * registers for error attention. This can be changed later.
8436 if_type
= bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
);
8438 case LPFC_SLI_INTF_IF_TYPE_0
:
8439 uerr_sta_lo
= readl(phba
->sli4_hba
.u
.if_type0
.UERRLOregaddr
);
8440 uerr_sta_hi
= readl(phba
->sli4_hba
.u
.if_type0
.UERRHIregaddr
);
8441 if ((~phba
->sli4_hba
.ue_mask_lo
& uerr_sta_lo
) ||
8442 (~phba
->sli4_hba
.ue_mask_hi
& uerr_sta_hi
)) {
8443 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8444 "1423 HBA Unrecoverable error: "
8445 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
8446 "ue_mask_lo_reg=0x%x, "
8447 "ue_mask_hi_reg=0x%x\n",
8448 uerr_sta_lo
, uerr_sta_hi
,
8449 phba
->sli4_hba
.ue_mask_lo
,
8450 phba
->sli4_hba
.ue_mask_hi
);
8451 phba
->work_status
[0] = uerr_sta_lo
;
8452 phba
->work_status
[1] = uerr_sta_hi
;
8453 phba
->work_ha
|= HA_ERATT
;
8454 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
8458 case LPFC_SLI_INTF_IF_TYPE_2
:
8459 portstat_reg
.word0
=
8460 readl(phba
->sli4_hba
.u
.if_type2
.STATUSregaddr
);
8461 portsmphr
= readl(phba
->sli4_hba
.PSMPHRregaddr
);
8462 if (bf_get(lpfc_sliport_status_err
, &portstat_reg
)) {
8463 phba
->work_status
[0] =
8464 readl(phba
->sli4_hba
.u
.if_type2
.ERR1regaddr
);
8465 phba
->work_status
[1] =
8466 readl(phba
->sli4_hba
.u
.if_type2
.ERR2regaddr
);
8467 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8468 "2885 Port Error Detected: "
8469 "port status reg 0x%x, "
8470 "port smphr reg 0x%x, "
8471 "error 1=0x%x, error 2=0x%x\n",
8474 phba
->work_status
[0],
8475 phba
->work_status
[1]);
8476 phba
->work_ha
|= HA_ERATT
;
8477 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
8481 case LPFC_SLI_INTF_IF_TYPE_1
:
8483 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8484 "2886 HBA Error Attention on unsupported "
8485 "if type %d.", if_type
);
8493 * lpfc_sli_check_eratt - check error attention events
8494 * @phba: Pointer to HBA context.
8496 * This function is called from timer soft interrupt context to check HBA's
8497 * error attention register bit for error attention events.
8499 * This fucntion returns 1 when there is Error Attention in the Host Attention
8500 * Register and returns 0 otherwise.
8503 lpfc_sli_check_eratt(struct lpfc_hba
*phba
)
8507 /* If somebody is waiting to handle an eratt, don't process it
8508 * here. The brdkill function will do this.
8510 if (phba
->link_flag
& LS_IGNORE_ERATT
)
8513 /* Check if interrupt handler handles this ERATT */
8514 spin_lock_irq(&phba
->hbalock
);
8515 if (phba
->hba_flag
& HBA_ERATT_HANDLED
) {
8516 /* Interrupt handler has handled ERATT */
8517 spin_unlock_irq(&phba
->hbalock
);
8522 * If there is deferred error attention, do not check for error
8525 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
8526 spin_unlock_irq(&phba
->hbalock
);
8530 /* If PCI channel is offline, don't process it */
8531 if (unlikely(pci_channel_offline(phba
->pcidev
))) {
8532 spin_unlock_irq(&phba
->hbalock
);
8536 switch (phba
->sli_rev
) {
8539 /* Read chip Host Attention (HA) register */
8540 ha_copy
= lpfc_sli_eratt_read(phba
);
8543 /* Read device Uncoverable Error (UERR) registers */
8544 ha_copy
= lpfc_sli4_eratt_read(phba
);
8547 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8548 "0299 Invalid SLI revision (%d)\n",
8553 spin_unlock_irq(&phba
->hbalock
);
8559 * lpfc_intr_state_check - Check device state for interrupt handling
8560 * @phba: Pointer to HBA context.
8562 * This inline routine checks whether a device or its PCI slot is in a state
8563 * that the interrupt should be handled.
8565 * This function returns 0 if the device or the PCI slot is in a state that
8566 * interrupt should be handled, otherwise -EIO.
8569 lpfc_intr_state_check(struct lpfc_hba
*phba
)
8571 /* If the pci channel is offline, ignore all the interrupts */
8572 if (unlikely(pci_channel_offline(phba
->pcidev
)))
8575 /* Update device level interrupt statistics */
8576 phba
->sli
.slistat
.sli_intr
++;
8578 /* Ignore all interrupts during initialization. */
8579 if (unlikely(phba
->link_state
< LPFC_LINK_DOWN
))
8586 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
8587 * @irq: Interrupt number.
8588 * @dev_id: The device context pointer.
8590 * This function is directly called from the PCI layer as an interrupt
8591 * service routine when device with SLI-3 interface spec is enabled with
8592 * MSI-X multi-message interrupt mode and there are slow-path events in
8593 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
8594 * interrupt mode, this function is called as part of the device-level
8595 * interrupt handler. When the PCI slot is in error recovery or the HBA
8596 * is undergoing initialization, the interrupt handler will not process
8597 * the interrupt. The link attention and ELS ring attention events are
8598 * handled by the worker thread. The interrupt handler signals the worker
8599 * thread and returns for these events. This function is called without
8600 * any lock held. It gets the hbalock to access and update SLI data
8603 * This function returns IRQ_HANDLED when interrupt is handled else it
8607 lpfc_sli_sp_intr_handler(int irq
, void *dev_id
)
8609 struct lpfc_hba
*phba
;
8610 uint32_t ha_copy
, hc_copy
;
8611 uint32_t work_ha_copy
;
8612 unsigned long status
;
8613 unsigned long iflag
;
8616 MAILBOX_t
*mbox
, *pmbox
;
8617 struct lpfc_vport
*vport
;
8618 struct lpfc_nodelist
*ndlp
;
8619 struct lpfc_dmabuf
*mp
;
8624 * Get the driver's phba structure from the dev_id and
8625 * assume the HBA is not interrupting.
8627 phba
= (struct lpfc_hba
*)dev_id
;
8629 if (unlikely(!phba
))
8633 * Stuff needs to be attented to when this function is invoked as an
8634 * individual interrupt handler in MSI-X multi-message interrupt mode
8636 if (phba
->intr_type
== MSIX
) {
8637 /* Check device state for handling interrupt */
8638 if (lpfc_intr_state_check(phba
))
8640 /* Need to read HA REG for slow-path events */
8641 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8642 ha_copy
= readl(phba
->HAregaddr
);
8643 /* If somebody is waiting to handle an eratt don't process it
8644 * here. The brdkill function will do this.
8646 if (phba
->link_flag
& LS_IGNORE_ERATT
)
8647 ha_copy
&= ~HA_ERATT
;
8648 /* Check the need for handling ERATT in interrupt handler */
8649 if (ha_copy
& HA_ERATT
) {
8650 if (phba
->hba_flag
& HBA_ERATT_HANDLED
)
8651 /* ERATT polling has handled ERATT */
8652 ha_copy
&= ~HA_ERATT
;
8654 /* Indicate interrupt handler handles ERATT */
8655 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
8659 * If there is deferred error attention, do not check for any
8662 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
8663 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8667 /* Clear up only attention source related to slow-path */
8668 hc_copy
= readl(phba
->HCregaddr
);
8669 writel(hc_copy
& ~(HC_MBINT_ENA
| HC_R2INT_ENA
|
8670 HC_LAINT_ENA
| HC_ERINT_ENA
),
8672 writel((ha_copy
& (HA_MBATT
| HA_R2_CLR_MSK
)),
8674 writel(hc_copy
, phba
->HCregaddr
);
8675 readl(phba
->HAregaddr
); /* flush */
8676 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8678 ha_copy
= phba
->ha_copy
;
8680 work_ha_copy
= ha_copy
& phba
->work_ha_mask
;
8683 if (work_ha_copy
& HA_LATT
) {
8684 if (phba
->sli
.sli_flag
& LPFC_PROCESS_LA
) {
8686 * Turn off Link Attention interrupts
8687 * until CLEAR_LA done
8689 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8690 phba
->sli
.sli_flag
&= ~LPFC_PROCESS_LA
;
8691 control
= readl(phba
->HCregaddr
);
8692 control
&= ~HC_LAINT_ENA
;
8693 writel(control
, phba
->HCregaddr
);
8694 readl(phba
->HCregaddr
); /* flush */
8695 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8698 work_ha_copy
&= ~HA_LATT
;
8701 if (work_ha_copy
& ~(HA_ERATT
| HA_MBATT
| HA_LATT
)) {
8703 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
8704 * the only slow ring.
8706 status
= (work_ha_copy
&
8707 (HA_RXMASK
<< (4*LPFC_ELS_RING
)));
8708 status
>>= (4*LPFC_ELS_RING
);
8709 if (status
& HA_RXMASK
) {
8710 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8711 control
= readl(phba
->HCregaddr
);
8713 lpfc_debugfs_slow_ring_trc(phba
,
8714 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
8716 (uint32_t)phba
->sli
.slistat
.sli_intr
);
8718 if (control
& (HC_R0INT_ENA
<< LPFC_ELS_RING
)) {
8719 lpfc_debugfs_slow_ring_trc(phba
,
8721 "pwork:x%x hawork:x%x wait:x%x",
8722 phba
->work_ha
, work_ha_copy
,
8723 (uint32_t)((unsigned long)
8724 &phba
->work_waitq
));
8727 ~(HC_R0INT_ENA
<< LPFC_ELS_RING
);
8728 writel(control
, phba
->HCregaddr
);
8729 readl(phba
->HCregaddr
); /* flush */
8732 lpfc_debugfs_slow_ring_trc(phba
,
8733 "ISR slow ring: pwork:"
8734 "x%x hawork:x%x wait:x%x",
8735 phba
->work_ha
, work_ha_copy
,
8736 (uint32_t)((unsigned long)
8737 &phba
->work_waitq
));
8739 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8742 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8743 if (work_ha_copy
& HA_ERATT
) {
8744 lpfc_sli_read_hs(phba
);
8746 * Check if there is a deferred error condition
8749 if ((HS_FFER1
& phba
->work_hs
) &&
8750 ((HS_FFER2
| HS_FFER3
| HS_FFER4
| HS_FFER5
|
8751 HS_FFER6
| HS_FFER7
| HS_FFER8
) &
8753 phba
->hba_flag
|= DEFER_ERATT
;
8754 /* Clear all interrupt enable conditions */
8755 writel(0, phba
->HCregaddr
);
8756 readl(phba
->HCregaddr
);
8760 if ((work_ha_copy
& HA_MBATT
) && (phba
->sli
.mbox_active
)) {
8761 pmb
= phba
->sli
.mbox_active
;
8766 /* First check out the status word */
8767 lpfc_sli_pcimem_bcopy(mbox
, pmbox
, sizeof(uint32_t));
8768 if (pmbox
->mbxOwner
!= OWN_HOST
) {
8769 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8771 * Stray Mailbox Interrupt, mbxCommand <cmd>
8772 * mbxStatus <status>
8774 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
|
8776 "(%d):0304 Stray Mailbox "
8777 "Interrupt mbxCommand x%x "
8779 (vport
? vport
->vpi
: 0),
8782 /* clear mailbox attention bit */
8783 work_ha_copy
&= ~HA_MBATT
;
8785 phba
->sli
.mbox_active
= NULL
;
8786 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8787 phba
->last_completion_time
= jiffies
;
8788 del_timer(&phba
->sli
.mbox_tmo
);
8789 if (pmb
->mbox_cmpl
) {
8790 lpfc_sli_pcimem_bcopy(mbox
, pmbox
,
8792 if (pmb
->out_ext_byte_len
&&
8794 lpfc_sli_pcimem_bcopy(
8797 pmb
->out_ext_byte_len
);
8799 if (pmb
->mbox_flag
& LPFC_MBX_IMED_UNREG
) {
8800 pmb
->mbox_flag
&= ~LPFC_MBX_IMED_UNREG
;
8802 lpfc_debugfs_disc_trc(vport
,
8803 LPFC_DISC_TRC_MBOX_VPORT
,
8805 "status:x%x rpi:x%x",
8806 (uint32_t)pmbox
->mbxStatus
,
8807 pmbox
->un
.varWords
[0], 0);
8809 if (!pmbox
->mbxStatus
) {
8810 mp
= (struct lpfc_dmabuf
*)
8812 ndlp
= (struct lpfc_nodelist
*)
8815 /* Reg_LOGIN of dflt RPI was
8816 * successful. new lets get
8817 * rid of the RPI using the
8820 lpfc_unreg_login(phba
,
8822 pmbox
->un
.varWords
[0],
8825 lpfc_mbx_cmpl_dflt_rpi
;
8827 pmb
->context2
= ndlp
;
8829 rc
= lpfc_sli_issue_mbox(phba
,
8833 lpfc_printf_log(phba
,
8836 "0350 rc should have"
8838 if (rc
!= MBX_NOT_FINISHED
)
8839 goto send_current_mbox
;
8843 &phba
->pport
->work_port_lock
,
8845 phba
->pport
->work_port_events
&=
8847 spin_unlock_irqrestore(
8848 &phba
->pport
->work_port_lock
,
8850 lpfc_mbox_cmpl_put(phba
, pmb
);
8853 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8855 if ((work_ha_copy
& HA_MBATT
) &&
8856 (phba
->sli
.mbox_active
== NULL
)) {
8858 /* Process next mailbox command if there is one */
8860 rc
= lpfc_sli_issue_mbox(phba
, NULL
,
8862 } while (rc
== MBX_NOT_FINISHED
);
8863 if (rc
!= MBX_SUCCESS
)
8864 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
|
8865 LOG_SLI
, "0349 rc should be "
8869 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8870 phba
->work_ha
|= work_ha_copy
;
8871 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8872 lpfc_worker_wake_up(phba
);
8876 } /* lpfc_sli_sp_intr_handler */
8879 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
8880 * @irq: Interrupt number.
8881 * @dev_id: The device context pointer.
8883 * This function is directly called from the PCI layer as an interrupt
8884 * service routine when device with SLI-3 interface spec is enabled with
8885 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
8886 * ring event in the HBA. However, when the device is enabled with either
8887 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
8888 * device-level interrupt handler. When the PCI slot is in error recovery
8889 * or the HBA is undergoing initialization, the interrupt handler will not
8890 * process the interrupt. The SCSI FCP fast-path ring event are handled in
8891 * the intrrupt context. This function is called without any lock held.
8892 * It gets the hbalock to access and update SLI data structures.
8894 * This function returns IRQ_HANDLED when interrupt is handled else it
8898 lpfc_sli_fp_intr_handler(int irq
, void *dev_id
)
8900 struct lpfc_hba
*phba
;
8902 unsigned long status
;
8903 unsigned long iflag
;
8905 /* Get the driver's phba structure from the dev_id and
8906 * assume the HBA is not interrupting.
8908 phba
= (struct lpfc_hba
*) dev_id
;
8910 if (unlikely(!phba
))
8914 * Stuff needs to be attented to when this function is invoked as an
8915 * individual interrupt handler in MSI-X multi-message interrupt mode
8917 if (phba
->intr_type
== MSIX
) {
8918 /* Check device state for handling interrupt */
8919 if (lpfc_intr_state_check(phba
))
8921 /* Need to read HA REG for FCP ring and other ring events */
8922 ha_copy
= readl(phba
->HAregaddr
);
8923 /* Clear up only attention source related to fast-path */
8924 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8926 * If there is deferred error attention, do not check for
8929 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
8930 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8933 writel((ha_copy
& (HA_R0_CLR_MSK
| HA_R1_CLR_MSK
)),
8935 readl(phba
->HAregaddr
); /* flush */
8936 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8938 ha_copy
= phba
->ha_copy
;
8941 * Process all events on FCP ring. Take the optimized path for FCP IO.
8943 ha_copy
&= ~(phba
->work_ha_mask
);
8945 status
= (ha_copy
& (HA_RXMASK
<< (4*LPFC_FCP_RING
)));
8946 status
>>= (4*LPFC_FCP_RING
);
8947 if (status
& HA_RXMASK
)
8948 lpfc_sli_handle_fast_ring_event(phba
,
8949 &phba
->sli
.ring
[LPFC_FCP_RING
],
8952 if (phba
->cfg_multi_ring_support
== 2) {
8954 * Process all events on extra ring. Take the optimized path
8955 * for extra ring IO.
8957 status
= (ha_copy
& (HA_RXMASK
<< (4*LPFC_EXTRA_RING
)));
8958 status
>>= (4*LPFC_EXTRA_RING
);
8959 if (status
& HA_RXMASK
) {
8960 lpfc_sli_handle_fast_ring_event(phba
,
8961 &phba
->sli
.ring
[LPFC_EXTRA_RING
],
8966 } /* lpfc_sli_fp_intr_handler */
8969 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
8970 * @irq: Interrupt number.
8971 * @dev_id: The device context pointer.
8973 * This function is the HBA device-level interrupt handler to device with
8974 * SLI-3 interface spec, called from the PCI layer when either MSI or
8975 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
8976 * requires driver attention. This function invokes the slow-path interrupt
8977 * attention handling function and fast-path interrupt attention handling
8978 * function in turn to process the relevant HBA attention events. This
8979 * function is called without any lock held. It gets the hbalock to access
8980 * and update SLI data structures.
8982 * This function returns IRQ_HANDLED when interrupt is handled, else it
8986 lpfc_sli_intr_handler(int irq
, void *dev_id
)
8988 struct lpfc_hba
*phba
;
8989 irqreturn_t sp_irq_rc
, fp_irq_rc
;
8990 unsigned long status1
, status2
;
8994 * Get the driver's phba structure from the dev_id and
8995 * assume the HBA is not interrupting.
8997 phba
= (struct lpfc_hba
*) dev_id
;
8999 if (unlikely(!phba
))
9002 /* Check device state for handling interrupt */
9003 if (lpfc_intr_state_check(phba
))
9006 spin_lock(&phba
->hbalock
);
9007 phba
->ha_copy
= readl(phba
->HAregaddr
);
9008 if (unlikely(!phba
->ha_copy
)) {
9009 spin_unlock(&phba
->hbalock
);
9011 } else if (phba
->ha_copy
& HA_ERATT
) {
9012 if (phba
->hba_flag
& HBA_ERATT_HANDLED
)
9013 /* ERATT polling has handled ERATT */
9014 phba
->ha_copy
&= ~HA_ERATT
;
9016 /* Indicate interrupt handler handles ERATT */
9017 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
9021 * If there is deferred error attention, do not check for any interrupt.
9023 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
9024 spin_unlock(&phba
->hbalock
);
9028 /* Clear attention sources except link and error attentions */
9029 hc_copy
= readl(phba
->HCregaddr
);
9030 writel(hc_copy
& ~(HC_MBINT_ENA
| HC_R0INT_ENA
| HC_R1INT_ENA
9031 | HC_R2INT_ENA
| HC_LAINT_ENA
| HC_ERINT_ENA
),
9033 writel((phba
->ha_copy
& ~(HA_LATT
| HA_ERATT
)), phba
->HAregaddr
);
9034 writel(hc_copy
, phba
->HCregaddr
);
9035 readl(phba
->HAregaddr
); /* flush */
9036 spin_unlock(&phba
->hbalock
);
9039 * Invokes slow-path host attention interrupt handling as appropriate.
9042 /* status of events with mailbox and link attention */
9043 status1
= phba
->ha_copy
& (HA_MBATT
| HA_LATT
| HA_ERATT
);
9045 /* status of events with ELS ring */
9046 status2
= (phba
->ha_copy
& (HA_RXMASK
<< (4*LPFC_ELS_RING
)));
9047 status2
>>= (4*LPFC_ELS_RING
);
9049 if (status1
|| (status2
& HA_RXMASK
))
9050 sp_irq_rc
= lpfc_sli_sp_intr_handler(irq
, dev_id
);
9052 sp_irq_rc
= IRQ_NONE
;
9055 * Invoke fast-path host attention interrupt handling as appropriate.
9058 /* status of events with FCP ring */
9059 status1
= (phba
->ha_copy
& (HA_RXMASK
<< (4*LPFC_FCP_RING
)));
9060 status1
>>= (4*LPFC_FCP_RING
);
9062 /* status of events with extra ring */
9063 if (phba
->cfg_multi_ring_support
== 2) {
9064 status2
= (phba
->ha_copy
& (HA_RXMASK
<< (4*LPFC_EXTRA_RING
)));
9065 status2
>>= (4*LPFC_EXTRA_RING
);
9069 if ((status1
& HA_RXMASK
) || (status2
& HA_RXMASK
))
9070 fp_irq_rc
= lpfc_sli_fp_intr_handler(irq
, dev_id
);
9072 fp_irq_rc
= IRQ_NONE
;
9074 /* Return device-level interrupt handling status */
9075 return (sp_irq_rc
== IRQ_HANDLED
) ? sp_irq_rc
: fp_irq_rc
;
9076 } /* lpfc_sli_intr_handler */
9079 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
9080 * @phba: pointer to lpfc hba data structure.
9082 * This routine is invoked by the worker thread to process all the pending
9083 * SLI4 FCP abort XRI events.
9085 void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba
*phba
)
9087 struct lpfc_cq_event
*cq_event
;
9089 /* First, declare the fcp xri abort event has been handled */
9090 spin_lock_irq(&phba
->hbalock
);
9091 phba
->hba_flag
&= ~FCP_XRI_ABORT_EVENT
;
9092 spin_unlock_irq(&phba
->hbalock
);
9093 /* Now, handle all the fcp xri abort events */
9094 while (!list_empty(&phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
)) {
9095 /* Get the first event from the head of the event queue */
9096 spin_lock_irq(&phba
->hbalock
);
9097 list_remove_head(&phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
,
9098 cq_event
, struct lpfc_cq_event
, list
);
9099 spin_unlock_irq(&phba
->hbalock
);
9100 /* Notify aborted XRI for FCP work queue */
9101 lpfc_sli4_fcp_xri_aborted(phba
, &cq_event
->cqe
.wcqe_axri
);
9102 /* Free the event processed back to the free pool */
9103 lpfc_sli4_cq_event_release(phba
, cq_event
);
9108 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
9109 * @phba: pointer to lpfc hba data structure.
9111 * This routine is invoked by the worker thread to process all the pending
9112 * SLI4 els abort xri events.
9114 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba
*phba
)
9116 struct lpfc_cq_event
*cq_event
;
9118 /* First, declare the els xri abort event has been handled */
9119 spin_lock_irq(&phba
->hbalock
);
9120 phba
->hba_flag
&= ~ELS_XRI_ABORT_EVENT
;
9121 spin_unlock_irq(&phba
->hbalock
);
9122 /* Now, handle all the els xri abort events */
9123 while (!list_empty(&phba
->sli4_hba
.sp_els_xri_aborted_work_queue
)) {
9124 /* Get the first event from the head of the event queue */
9125 spin_lock_irq(&phba
->hbalock
);
9126 list_remove_head(&phba
->sli4_hba
.sp_els_xri_aborted_work_queue
,
9127 cq_event
, struct lpfc_cq_event
, list
);
9128 spin_unlock_irq(&phba
->hbalock
);
9129 /* Notify aborted XRI for ELS work queue */
9130 lpfc_sli4_els_xri_aborted(phba
, &cq_event
->cqe
.wcqe_axri
);
9131 /* Free the event processed back to the free pool */
9132 lpfc_sli4_cq_event_release(phba
, cq_event
);
9137 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
9138 * @phba: pointer to lpfc hba data structure
9139 * @pIocbIn: pointer to the rspiocbq
9140 * @pIocbOut: pointer to the cmdiocbq
9141 * @wcqe: pointer to the complete wcqe
9143 * This routine transfers the fields of a command iocbq to a response iocbq
9144 * by copying all the IOCB fields from command iocbq and transferring the
9145 * completion status information from the complete wcqe.
9148 lpfc_sli4_iocb_param_transfer(struct lpfc_hba
*phba
,
9149 struct lpfc_iocbq
*pIocbIn
,
9150 struct lpfc_iocbq
*pIocbOut
,
9151 struct lpfc_wcqe_complete
*wcqe
)
9153 unsigned long iflags
;
9154 size_t offset
= offsetof(struct lpfc_iocbq
, iocb
);
9156 memcpy((char *)pIocbIn
+ offset
, (char *)pIocbOut
+ offset
,
9157 sizeof(struct lpfc_iocbq
) - offset
);
9158 /* Map WCQE parameters into irspiocb parameters */
9159 pIocbIn
->iocb
.ulpStatus
= bf_get(lpfc_wcqe_c_status
, wcqe
);
9160 if (pIocbOut
->iocb_flag
& LPFC_IO_FCP
)
9161 if (pIocbIn
->iocb
.ulpStatus
== IOSTAT_FCP_RSP_ERROR
)
9162 pIocbIn
->iocb
.un
.fcpi
.fcpi_parm
=
9163 pIocbOut
->iocb
.un
.fcpi
.fcpi_parm
-
9164 wcqe
->total_data_placed
;
9166 pIocbIn
->iocb
.un
.ulpWord
[4] = wcqe
->parameter
;
9168 pIocbIn
->iocb
.un
.ulpWord
[4] = wcqe
->parameter
;
9169 pIocbIn
->iocb
.un
.genreq64
.bdl
.bdeSize
= wcqe
->total_data_placed
;
9172 /* Pick up HBA exchange busy condition */
9173 if (bf_get(lpfc_wcqe_c_xb
, wcqe
)) {
9174 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9175 pIocbIn
->iocb_flag
|= LPFC_EXCHANGE_BUSY
;
9176 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9181 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
9182 * @phba: Pointer to HBA context object.
9183 * @wcqe: Pointer to work-queue completion queue entry.
9185 * This routine handles an ELS work-queue completion event and construct
9186 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
9187 * discovery engine to handle.
9189 * Return: Pointer to the receive IOCBQ, NULL otherwise.
9191 static struct lpfc_iocbq
*
9192 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba
*phba
,
9193 struct lpfc_iocbq
*irspiocbq
)
9195 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
9196 struct lpfc_iocbq
*cmdiocbq
;
9197 struct lpfc_wcqe_complete
*wcqe
;
9198 unsigned long iflags
;
9200 wcqe
= &irspiocbq
->cq_event
.cqe
.wcqe_cmpl
;
9201 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9202 pring
->stats
.iocb_event
++;
9203 /* Look up the ELS command IOCB and create pseudo response IOCB */
9204 cmdiocbq
= lpfc_sli_iocbq_lookup_by_tag(phba
, pring
,
9205 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
9206 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9208 if (unlikely(!cmdiocbq
)) {
9209 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
9210 "0386 ELS complete with no corresponding "
9211 "cmdiocb: iotag (%d)\n",
9212 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
9213 lpfc_sli_release_iocbq(phba
, irspiocbq
);
9217 /* Fake the irspiocbq and copy necessary response information */
9218 lpfc_sli4_iocb_param_transfer(phba
, irspiocbq
, cmdiocbq
, wcqe
);
9224 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
9225 * @phba: Pointer to HBA context object.
9226 * @cqe: Pointer to mailbox completion queue entry.
9228 * This routine process a mailbox completion queue entry with asynchrous
9231 * Return: true if work posted to worker thread, otherwise false.
9234 lpfc_sli4_sp_handle_async_event(struct lpfc_hba
*phba
, struct lpfc_mcqe
*mcqe
)
9236 struct lpfc_cq_event
*cq_event
;
9237 unsigned long iflags
;
9239 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
9240 "0392 Async Event: word0:x%x, word1:x%x, "
9241 "word2:x%x, word3:x%x\n", mcqe
->word0
,
9242 mcqe
->mcqe_tag0
, mcqe
->mcqe_tag1
, mcqe
->trailer
);
9244 /* Allocate a new internal CQ_EVENT entry */
9245 cq_event
= lpfc_sli4_cq_event_alloc(phba
);
9247 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9248 "0394 Failed to allocate CQ_EVENT entry\n");
9252 /* Move the CQE into an asynchronous event entry */
9253 memcpy(&cq_event
->cqe
, mcqe
, sizeof(struct lpfc_mcqe
));
9254 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9255 list_add_tail(&cq_event
->list
, &phba
->sli4_hba
.sp_asynce_work_queue
);
9256 /* Set the async event flag */
9257 phba
->hba_flag
|= ASYNC_EVENT
;
9258 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9264 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
9265 * @phba: Pointer to HBA context object.
9266 * @cqe: Pointer to mailbox completion queue entry.
9268 * This routine process a mailbox completion queue entry with mailbox
9271 * Return: true if work posted to worker thread, otherwise false.
9274 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba
*phba
, struct lpfc_mcqe
*mcqe
)
9276 uint32_t mcqe_status
;
9277 MAILBOX_t
*mbox
, *pmbox
;
9278 struct lpfc_mqe
*mqe
;
9279 struct lpfc_vport
*vport
;
9280 struct lpfc_nodelist
*ndlp
;
9281 struct lpfc_dmabuf
*mp
;
9282 unsigned long iflags
;
9284 bool workposted
= false;
9287 /* If not a mailbox complete MCQE, out by checking mailbox consume */
9288 if (!bf_get(lpfc_trailer_completed
, mcqe
))
9289 goto out_no_mqe_complete
;
9291 /* Get the reference to the active mbox command */
9292 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9293 pmb
= phba
->sli
.mbox_active
;
9294 if (unlikely(!pmb
)) {
9295 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
9296 "1832 No pending MBOX command to handle\n");
9297 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9298 goto out_no_mqe_complete
;
9300 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9302 pmbox
= (MAILBOX_t
*)&pmb
->u
.mqe
;
9306 /* Reset heartbeat timer */
9307 phba
->last_completion_time
= jiffies
;
9308 del_timer(&phba
->sli
.mbox_tmo
);
9310 /* Move mbox data to caller's mailbox region, do endian swapping */
9311 if (pmb
->mbox_cmpl
&& mbox
)
9312 lpfc_sli_pcimem_bcopy(mbox
, mqe
, sizeof(struct lpfc_mqe
));
9313 /* Set the mailbox status with SLI4 range 0x4000 */
9314 mcqe_status
= bf_get(lpfc_mcqe_status
, mcqe
);
9315 if (mcqe_status
!= MB_CQE_STATUS_SUCCESS
)
9316 bf_set(lpfc_mqe_status
, mqe
,
9317 (LPFC_MBX_ERROR_RANGE
| mcqe_status
));
9319 if (pmb
->mbox_flag
& LPFC_MBX_IMED_UNREG
) {
9320 pmb
->mbox_flag
&= ~LPFC_MBX_IMED_UNREG
;
9321 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_MBOX_VPORT
,
9322 "MBOX dflt rpi: status:x%x rpi:x%x",
9324 pmbox
->un
.varWords
[0], 0);
9325 if (mcqe_status
== MB_CQE_STATUS_SUCCESS
) {
9326 mp
= (struct lpfc_dmabuf
*)(pmb
->context1
);
9327 ndlp
= (struct lpfc_nodelist
*)pmb
->context2
;
9328 /* Reg_LOGIN of dflt RPI was successful. Now lets get
9329 * RID of the PPI using the same mbox buffer.
9331 lpfc_unreg_login(phba
, vport
->vpi
,
9332 pmbox
->un
.varWords
[0], pmb
);
9333 pmb
->mbox_cmpl
= lpfc_mbx_cmpl_dflt_rpi
;
9335 pmb
->context2
= ndlp
;
9337 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
9339 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
|
9340 LOG_SLI
, "0385 rc should "
9341 "have been MBX_BUSY\n");
9342 if (rc
!= MBX_NOT_FINISHED
)
9343 goto send_current_mbox
;
9346 spin_lock_irqsave(&phba
->pport
->work_port_lock
, iflags
);
9347 phba
->pport
->work_port_events
&= ~WORKER_MBOX_TMO
;
9348 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, iflags
);
9350 /* There is mailbox completion work to do */
9351 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9352 __lpfc_mbox_cmpl_put(phba
, pmb
);
9353 phba
->work_ha
|= HA_MBATT
;
9354 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9358 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9359 /* Release the mailbox command posting token */
9360 phba
->sli
.sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
9361 /* Setting active mailbox pointer need to be in sync to flag clear */
9362 phba
->sli
.mbox_active
= NULL
;
9363 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9364 /* Wake up worker thread to post the next pending mailbox command */
9365 lpfc_worker_wake_up(phba
);
9366 out_no_mqe_complete
:
9367 if (bf_get(lpfc_trailer_consumed
, mcqe
))
9368 lpfc_sli4_mq_release(phba
->sli4_hba
.mbx_wq
);
9373 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
9374 * @phba: Pointer to HBA context object.
9375 * @cqe: Pointer to mailbox completion queue entry.
9377 * This routine process a mailbox completion queue entry, it invokes the
9378 * proper mailbox complete handling or asynchrous event handling routine
9379 * according to the MCQE's async bit.
9381 * Return: true if work posted to worker thread, otherwise false.
9384 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba
*phba
, struct lpfc_cqe
*cqe
)
9386 struct lpfc_mcqe mcqe
;
9389 /* Copy the mailbox MCQE and convert endian order as needed */
9390 lpfc_sli_pcimem_bcopy(cqe
, &mcqe
, sizeof(struct lpfc_mcqe
));
9392 /* Invoke the proper event handling routine */
9393 if (!bf_get(lpfc_trailer_async
, &mcqe
))
9394 workposted
= lpfc_sli4_sp_handle_mbox_event(phba
, &mcqe
);
9396 workposted
= lpfc_sli4_sp_handle_async_event(phba
, &mcqe
);
9401 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
9402 * @phba: Pointer to HBA context object.
9403 * @wcqe: Pointer to work-queue completion queue entry.
9405 * This routine handles an ELS work-queue completion event.
9407 * Return: true if work posted to worker thread, otherwise false.
9410 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba
*phba
,
9411 struct lpfc_wcqe_complete
*wcqe
)
9413 struct lpfc_iocbq
*irspiocbq
;
9414 unsigned long iflags
;
9415 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_FCP_RING
];
9417 /* Get an irspiocbq for later ELS response processing use */
9418 irspiocbq
= lpfc_sli_get_iocbq(phba
);
9420 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9421 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
9422 "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n",
9423 pring
->txq_cnt
, phba
->iocb_cnt
,
9424 phba
->sli
.ring
[LPFC_FCP_RING
].txcmplq_cnt
,
9425 phba
->sli
.ring
[LPFC_ELS_RING
].txcmplq_cnt
);
9429 /* Save off the slow-path queue event for work thread to process */
9430 memcpy(&irspiocbq
->cq_event
.cqe
.wcqe_cmpl
, wcqe
, sizeof(*wcqe
));
9431 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9432 list_add_tail(&irspiocbq
->cq_event
.list
,
9433 &phba
->sli4_hba
.sp_queue_event
);
9434 phba
->hba_flag
|= HBA_SP_QUEUE_EVT
;
9435 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9441 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
9442 * @phba: Pointer to HBA context object.
9443 * @wcqe: Pointer to work-queue completion queue entry.
9445 * This routine handles slow-path WQ entry comsumed event by invoking the
9446 * proper WQ release routine to the slow-path WQ.
9449 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba
*phba
,
9450 struct lpfc_wcqe_release
*wcqe
)
9452 /* Check for the slow-path ELS work queue */
9453 if (bf_get(lpfc_wcqe_r_wq_id
, wcqe
) == phba
->sli4_hba
.els_wq
->queue_id
)
9454 lpfc_sli4_wq_release(phba
->sli4_hba
.els_wq
,
9455 bf_get(lpfc_wcqe_r_wqe_index
, wcqe
));
9457 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
9458 "2579 Slow-path wqe consume event carries "
9459 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
9460 bf_get(lpfc_wcqe_r_wqe_index
, wcqe
),
9461 phba
->sli4_hba
.els_wq
->queue_id
);
9465 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
9466 * @phba: Pointer to HBA context object.
9467 * @cq: Pointer to a WQ completion queue.
9468 * @wcqe: Pointer to work-queue completion queue entry.
9470 * This routine handles an XRI abort event.
9472 * Return: true if work posted to worker thread, otherwise false.
9475 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba
*phba
,
9476 struct lpfc_queue
*cq
,
9477 struct sli4_wcqe_xri_aborted
*wcqe
)
9479 bool workposted
= false;
9480 struct lpfc_cq_event
*cq_event
;
9481 unsigned long iflags
;
9483 /* Allocate a new internal CQ_EVENT entry */
9484 cq_event
= lpfc_sli4_cq_event_alloc(phba
);
9486 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9487 "0602 Failed to allocate CQ_EVENT entry\n");
9491 /* Move the CQE into the proper xri abort event list */
9492 memcpy(&cq_event
->cqe
, wcqe
, sizeof(struct sli4_wcqe_xri_aborted
));
9493 switch (cq
->subtype
) {
9495 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9496 list_add_tail(&cq_event
->list
,
9497 &phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
);
9498 /* Set the fcp xri abort event flag */
9499 phba
->hba_flag
|= FCP_XRI_ABORT_EVENT
;
9500 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9504 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9505 list_add_tail(&cq_event
->list
,
9506 &phba
->sli4_hba
.sp_els_xri_aborted_work_queue
);
9507 /* Set the els xri abort event flag */
9508 phba
->hba_flag
|= ELS_XRI_ABORT_EVENT
;
9509 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9513 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9514 "0603 Invalid work queue CQE subtype (x%x)\n",
9523 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
9524 * @phba: Pointer to HBA context object.
9525 * @rcqe: Pointer to receive-queue completion queue entry.
9527 * This routine process a receive-queue completion queue entry.
9529 * Return: true if work posted to worker thread, otherwise false.
9532 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba
*phba
, struct lpfc_rcqe
*rcqe
)
9534 bool workposted
= false;
9535 struct lpfc_queue
*hrq
= phba
->sli4_hba
.hdr_rq
;
9536 struct lpfc_queue
*drq
= phba
->sli4_hba
.dat_rq
;
9537 struct hbq_dmabuf
*dma_buf
;
9539 unsigned long iflags
;
9541 if (bf_get(lpfc_rcqe_rq_id
, rcqe
) != hrq
->queue_id
)
9544 status
= bf_get(lpfc_rcqe_status
, rcqe
);
9546 case FC_STATUS_RQ_BUF_LEN_EXCEEDED
:
9547 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9548 "2537 Receive Frame Truncated!!\n");
9549 case FC_STATUS_RQ_SUCCESS
:
9550 lpfc_sli4_rq_release(hrq
, drq
);
9551 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9552 dma_buf
= lpfc_sli_hbqbuf_get(&phba
->hbqs
[0].hbq_buffer_list
);
9554 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9557 memcpy(&dma_buf
->cq_event
.cqe
.rcqe_cmpl
, rcqe
, sizeof(*rcqe
));
9558 /* save off the frame for the word thread to process */
9559 list_add_tail(&dma_buf
->cq_event
.list
,
9560 &phba
->sli4_hba
.sp_queue_event
);
9561 /* Frame received */
9562 phba
->hba_flag
|= HBA_SP_QUEUE_EVT
;
9563 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9566 case FC_STATUS_INSUFF_BUF_NEED_BUF
:
9567 case FC_STATUS_INSUFF_BUF_FRM_DISC
:
9568 /* Post more buffers if possible */
9569 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9570 phba
->hba_flag
|= HBA_POST_RECEIVE_BUFFER
;
9571 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9580 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
9581 * @phba: Pointer to HBA context object.
9582 * @cq: Pointer to the completion queue.
9583 * @wcqe: Pointer to a completion queue entry.
9585 * This routine process a slow-path work-queue or recieve queue completion queue
9588 * Return: true if work posted to worker thread, otherwise false.
9591 lpfc_sli4_sp_handle_cqe(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
9592 struct lpfc_cqe
*cqe
)
9594 struct lpfc_cqe cqevt
;
9595 bool workposted
= false;
9597 /* Copy the work queue CQE and convert endian order if needed */
9598 lpfc_sli_pcimem_bcopy(cqe
, &cqevt
, sizeof(struct lpfc_cqe
));
9600 /* Check and process for different type of WCQE and dispatch */
9601 switch (bf_get(lpfc_cqe_code
, &cqevt
)) {
9602 case CQE_CODE_COMPL_WQE
:
9603 /* Process the WQ/RQ complete event */
9604 phba
->last_completion_time
= jiffies
;
9605 workposted
= lpfc_sli4_sp_handle_els_wcqe(phba
,
9606 (struct lpfc_wcqe_complete
*)&cqevt
);
9608 case CQE_CODE_RELEASE_WQE
:
9609 /* Process the WQ release event */
9610 lpfc_sli4_sp_handle_rel_wcqe(phba
,
9611 (struct lpfc_wcqe_release
*)&cqevt
);
9613 case CQE_CODE_XRI_ABORTED
:
9614 /* Process the WQ XRI abort event */
9615 phba
->last_completion_time
= jiffies
;
9616 workposted
= lpfc_sli4_sp_handle_abort_xri_wcqe(phba
, cq
,
9617 (struct sli4_wcqe_xri_aborted
*)&cqevt
);
9619 case CQE_CODE_RECEIVE
:
9620 /* Process the RQ event */
9621 phba
->last_completion_time
= jiffies
;
9622 workposted
= lpfc_sli4_sp_handle_rcqe(phba
,
9623 (struct lpfc_rcqe
*)&cqevt
);
9626 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9627 "0388 Not a valid WCQE code: x%x\n",
9628 bf_get(lpfc_cqe_code
, &cqevt
));
9635 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
9636 * @phba: Pointer to HBA context object.
9637 * @eqe: Pointer to fast-path event queue entry.
9639 * This routine process a event queue entry from the slow-path event queue.
9640 * It will check the MajorCode and MinorCode to determine this is for a
9641 * completion event on a completion queue, if not, an error shall be logged
9642 * and just return. Otherwise, it will get to the corresponding completion
9643 * queue and process all the entries on that completion queue, rearm the
9644 * completion queue, and then return.
9648 lpfc_sli4_sp_handle_eqe(struct lpfc_hba
*phba
, struct lpfc_eqe
*eqe
)
9650 struct lpfc_queue
*cq
= NULL
, *childq
, *speq
;
9651 struct lpfc_cqe
*cqe
;
9652 bool workposted
= false;
9656 if (bf_get_le32(lpfc_eqe_major_code
, eqe
) != 0) {
9657 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9658 "0359 Not a valid slow-path completion "
9659 "event: majorcode=x%x, minorcode=x%x\n",
9660 bf_get_le32(lpfc_eqe_major_code
, eqe
),
9661 bf_get_le32(lpfc_eqe_minor_code
, eqe
));
9665 /* Get the reference to the corresponding CQ */
9666 cqid
= bf_get_le32(lpfc_eqe_resource_id
, eqe
);
9668 /* Search for completion queue pointer matching this cqid */
9669 speq
= phba
->sli4_hba
.sp_eq
;
9670 list_for_each_entry(childq
, &speq
->child_list
, list
) {
9671 if (childq
->queue_id
== cqid
) {
9676 if (unlikely(!cq
)) {
9677 if (phba
->sli
.sli_flag
& LPFC_SLI_ACTIVE
)
9678 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9679 "0365 Slow-path CQ identifier "
9680 "(%d) does not exist\n", cqid
);
9684 /* Process all the entries to the CQ */
9687 while ((cqe
= lpfc_sli4_cq_get(cq
))) {
9688 workposted
|= lpfc_sli4_sp_handle_mcqe(phba
, cqe
);
9689 if (!(++ecount
% LPFC_GET_QE_REL_INT
))
9690 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_NOARM
);
9694 while ((cqe
= lpfc_sli4_cq_get(cq
))) {
9695 workposted
|= lpfc_sli4_sp_handle_cqe(phba
, cq
, cqe
);
9696 if (!(++ecount
% LPFC_GET_QE_REL_INT
))
9697 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_NOARM
);
9701 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9702 "0370 Invalid completion queue type (%d)\n",
9707 /* Catch the no cq entry condition, log an error */
9708 if (unlikely(ecount
== 0))
9709 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9710 "0371 No entry from the CQ: identifier "
9711 "(x%x), type (%d)\n", cq
->queue_id
, cq
->type
);
9713 /* In any case, flash and re-arm the RCQ */
9714 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_REARM
);
9716 /* wake up worker thread if there are works to be done */
9718 lpfc_worker_wake_up(phba
);
9722 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
9723 * @eqe: Pointer to fast-path completion queue entry.
9725 * This routine process a fast-path work queue completion entry from fast-path
9726 * event queue for FCP command response completion.
9729 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba
*phba
,
9730 struct lpfc_wcqe_complete
*wcqe
)
9732 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_FCP_RING
];
9733 struct lpfc_iocbq
*cmdiocbq
;
9734 struct lpfc_iocbq irspiocbq
;
9735 unsigned long iflags
;
9737 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9738 pring
->stats
.iocb_event
++;
9739 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9741 /* Check for response status */
9742 if (unlikely(bf_get(lpfc_wcqe_c_status
, wcqe
))) {
9743 /* If resource errors reported from HBA, reduce queue
9744 * depth of the SCSI device.
9746 if ((bf_get(lpfc_wcqe_c_status
, wcqe
) ==
9747 IOSTAT_LOCAL_REJECT
) &&
9748 (wcqe
->parameter
== IOERR_NO_RESOURCES
)) {
9749 phba
->lpfc_rampdown_queue_depth(phba
);
9751 /* Log the error status */
9752 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
9753 "0373 FCP complete error: status=x%x, "
9754 "hw_status=x%x, total_data_specified=%d, "
9755 "parameter=x%x, word3=x%x\n",
9756 bf_get(lpfc_wcqe_c_status
, wcqe
),
9757 bf_get(lpfc_wcqe_c_hw_status
, wcqe
),
9758 wcqe
->total_data_placed
, wcqe
->parameter
,
9762 /* Look up the FCP command IOCB and create pseudo response IOCB */
9763 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9764 cmdiocbq
= lpfc_sli_iocbq_lookup_by_tag(phba
, pring
,
9765 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
9766 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9767 if (unlikely(!cmdiocbq
)) {
9768 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
9769 "0374 FCP complete with no corresponding "
9770 "cmdiocb: iotag (%d)\n",
9771 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
9774 if (unlikely(!cmdiocbq
->iocb_cmpl
)) {
9775 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
9776 "0375 FCP cmdiocb not callback function "
9778 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
9782 /* Fake the irspiocb and copy necessary response information */
9783 lpfc_sli4_iocb_param_transfer(phba
, &irspiocbq
, cmdiocbq
, wcqe
);
9785 if (cmdiocbq
->iocb_flag
& LPFC_DRIVER_ABORTED
) {
9786 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9787 cmdiocbq
->iocb_flag
&= ~LPFC_DRIVER_ABORTED
;
9788 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9791 /* Pass the cmd_iocb and the rsp state to the upper layer */
9792 (cmdiocbq
->iocb_cmpl
)(phba
, cmdiocbq
, &irspiocbq
);
9796 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
9797 * @phba: Pointer to HBA context object.
9798 * @cq: Pointer to completion queue.
9799 * @wcqe: Pointer to work-queue completion queue entry.
9801 * This routine handles an fast-path WQ entry comsumed event by invoking the
9802 * proper WQ release routine to the slow-path WQ.
9805 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
9806 struct lpfc_wcqe_release
*wcqe
)
9808 struct lpfc_queue
*childwq
;
9809 bool wqid_matched
= false;
9812 /* Check for fast-path FCP work queue release */
9813 fcp_wqid
= bf_get(lpfc_wcqe_r_wq_id
, wcqe
);
9814 list_for_each_entry(childwq
, &cq
->child_list
, list
) {
9815 if (childwq
->queue_id
== fcp_wqid
) {
9816 lpfc_sli4_wq_release(childwq
,
9817 bf_get(lpfc_wcqe_r_wqe_index
, wcqe
));
9818 wqid_matched
= true;
9822 /* Report warning log message if no match found */
9823 if (wqid_matched
!= true)
9824 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
9825 "2580 Fast-path wqe consume event carries "
9826 "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid
);
9830 * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry
9831 * @cq: Pointer to the completion queue.
9832 * @eqe: Pointer to fast-path completion queue entry.
9834 * This routine process a fast-path work queue completion entry from fast-path
9835 * event queue for FCP command response completion.
9838 lpfc_sli4_fp_handle_wcqe(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
9839 struct lpfc_cqe
*cqe
)
9841 struct lpfc_wcqe_release wcqe
;
9842 bool workposted
= false;
9844 /* Copy the work queue CQE and convert endian order if needed */
9845 lpfc_sli_pcimem_bcopy(cqe
, &wcqe
, sizeof(struct lpfc_cqe
));
9847 /* Check and process for different type of WCQE and dispatch */
9848 switch (bf_get(lpfc_wcqe_c_code
, &wcqe
)) {
9849 case CQE_CODE_COMPL_WQE
:
9850 /* Process the WQ complete event */
9851 phba
->last_completion_time
= jiffies
;
9852 lpfc_sli4_fp_handle_fcp_wcqe(phba
,
9853 (struct lpfc_wcqe_complete
*)&wcqe
);
9855 case CQE_CODE_RELEASE_WQE
:
9856 /* Process the WQ release event */
9857 lpfc_sli4_fp_handle_rel_wcqe(phba
, cq
,
9858 (struct lpfc_wcqe_release
*)&wcqe
);
9860 case CQE_CODE_XRI_ABORTED
:
9861 /* Process the WQ XRI abort event */
9862 phba
->last_completion_time
= jiffies
;
9863 workposted
= lpfc_sli4_sp_handle_abort_xri_wcqe(phba
, cq
,
9864 (struct sli4_wcqe_xri_aborted
*)&wcqe
);
9867 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9868 "0144 Not a valid WCQE code: x%x\n",
9869 bf_get(lpfc_wcqe_c_code
, &wcqe
));
9876 * lpfc_sli4_fp_handle_eqe - Process a fast-path event queue entry
9877 * @phba: Pointer to HBA context object.
9878 * @eqe: Pointer to fast-path event queue entry.
9880 * This routine process a event queue entry from the fast-path event queue.
9881 * It will check the MajorCode and MinorCode to determine this is for a
9882 * completion event on a completion queue, if not, an error shall be logged
9883 * and just return. Otherwise, it will get to the corresponding completion
9884 * queue and process all the entries on the completion queue, rearm the
9885 * completion queue, and then return.
9888 lpfc_sli4_fp_handle_eqe(struct lpfc_hba
*phba
, struct lpfc_eqe
*eqe
,
9891 struct lpfc_queue
*cq
;
9892 struct lpfc_cqe
*cqe
;
9893 bool workposted
= false;
9897 if (unlikely(bf_get_le32(lpfc_eqe_major_code
, eqe
) != 0)) {
9898 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9899 "0366 Not a valid fast-path completion "
9900 "event: majorcode=x%x, minorcode=x%x\n",
9901 bf_get_le32(lpfc_eqe_major_code
, eqe
),
9902 bf_get_le32(lpfc_eqe_minor_code
, eqe
));
9906 cq
= phba
->sli4_hba
.fcp_cq
[fcp_cqidx
];
9907 if (unlikely(!cq
)) {
9908 if (phba
->sli
.sli_flag
& LPFC_SLI_ACTIVE
)
9909 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9910 "0367 Fast-path completion queue "
9911 "does not exist\n");
9915 /* Get the reference to the corresponding CQ */
9916 cqid
= bf_get_le32(lpfc_eqe_resource_id
, eqe
);
9917 if (unlikely(cqid
!= cq
->queue_id
)) {
9918 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9919 "0368 Miss-matched fast-path completion "
9920 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
9921 cqid
, cq
->queue_id
);
9925 /* Process all the entries to the CQ */
9926 while ((cqe
= lpfc_sli4_cq_get(cq
))) {
9927 workposted
|= lpfc_sli4_fp_handle_wcqe(phba
, cq
, cqe
);
9928 if (!(++ecount
% LPFC_GET_QE_REL_INT
))
9929 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_NOARM
);
9932 /* Catch the no cq entry condition */
9933 if (unlikely(ecount
== 0))
9934 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9935 "0369 No entry from fast-path completion "
9936 "queue fcpcqid=%d\n", cq
->queue_id
);
9938 /* In any case, flash and re-arm the CQ */
9939 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_REARM
);
9941 /* wake up worker thread if there are works to be done */
9943 lpfc_worker_wake_up(phba
);
9947 lpfc_sli4_eq_flush(struct lpfc_hba
*phba
, struct lpfc_queue
*eq
)
9949 struct lpfc_eqe
*eqe
;
9951 /* walk all the EQ entries and drop on the floor */
9952 while ((eqe
= lpfc_sli4_eq_get(eq
)))
9955 /* Clear and re-arm the EQ */
9956 lpfc_sli4_eq_release(eq
, LPFC_QUEUE_REARM
);
9960 * lpfc_sli4_sp_intr_handler - Slow-path interrupt handler to SLI-4 device
9961 * @irq: Interrupt number.
9962 * @dev_id: The device context pointer.
9964 * This function is directly called from the PCI layer as an interrupt
9965 * service routine when device with SLI-4 interface spec is enabled with
9966 * MSI-X multi-message interrupt mode and there are slow-path events in
9967 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
9968 * interrupt mode, this function is called as part of the device-level
9969 * interrupt handler. When the PCI slot is in error recovery or the HBA is
9970 * undergoing initialization, the interrupt handler will not process the
9971 * interrupt. The link attention and ELS ring attention events are handled
9972 * by the worker thread. The interrupt handler signals the worker thread
9973 * and returns for these events. This function is called without any lock
9974 * held. It gets the hbalock to access and update SLI data structures.
9976 * This function returns IRQ_HANDLED when interrupt is handled else it
9980 lpfc_sli4_sp_intr_handler(int irq
, void *dev_id
)
9982 struct lpfc_hba
*phba
;
9983 struct lpfc_queue
*speq
;
9984 struct lpfc_eqe
*eqe
;
9985 unsigned long iflag
;
9989 * Get the driver's phba structure from the dev_id
9991 phba
= (struct lpfc_hba
*)dev_id
;
9993 if (unlikely(!phba
))
9996 /* Get to the EQ struct associated with this vector */
9997 speq
= phba
->sli4_hba
.sp_eq
;
9999 /* Check device state for handling interrupt */
10000 if (unlikely(lpfc_intr_state_check(phba
))) {
10001 /* Check again for link_state with lock held */
10002 spin_lock_irqsave(&phba
->hbalock
, iflag
);
10003 if (phba
->link_state
< LPFC_LINK_DOWN
)
10004 /* Flush, clear interrupt, and rearm the EQ */
10005 lpfc_sli4_eq_flush(phba
, speq
);
10006 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
10011 * Process all the event on FCP slow-path EQ
10013 while ((eqe
= lpfc_sli4_eq_get(speq
))) {
10014 lpfc_sli4_sp_handle_eqe(phba
, eqe
);
10015 if (!(++ecount
% LPFC_GET_QE_REL_INT
))
10016 lpfc_sli4_eq_release(speq
, LPFC_QUEUE_NOARM
);
10019 /* Always clear and re-arm the slow-path EQ */
10020 lpfc_sli4_eq_release(speq
, LPFC_QUEUE_REARM
);
10022 /* Catch the no cq entry condition */
10023 if (unlikely(ecount
== 0)) {
10024 if (phba
->intr_type
== MSIX
)
10025 /* MSI-X treated interrupt served as no EQ share INT */
10026 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
10027 "0357 MSI-X interrupt with no EQE\n");
10029 /* Non MSI-X treated on interrupt as EQ share INT */
10033 return IRQ_HANDLED
;
10034 } /* lpfc_sli4_sp_intr_handler */
10037 * lpfc_sli4_fp_intr_handler - Fast-path interrupt handler to SLI-4 device
10038 * @irq: Interrupt number.
10039 * @dev_id: The device context pointer.
10041 * This function is directly called from the PCI layer as an interrupt
10042 * service routine when device with SLI-4 interface spec is enabled with
10043 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
10044 * ring event in the HBA. However, when the device is enabled with either
10045 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
10046 * device-level interrupt handler. When the PCI slot is in error recovery
10047 * or the HBA is undergoing initialization, the interrupt handler will not
10048 * process the interrupt. The SCSI FCP fast-path ring event are handled in
10049 * the intrrupt context. This function is called without any lock held.
10050 * It gets the hbalock to access and update SLI data structures. Note that,
10051 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
10052 * equal to that of FCP CQ index.
10054 * This function returns IRQ_HANDLED when interrupt is handled else it
10055 * returns IRQ_NONE.
10058 lpfc_sli4_fp_intr_handler(int irq
, void *dev_id
)
10060 struct lpfc_hba
*phba
;
10061 struct lpfc_fcp_eq_hdl
*fcp_eq_hdl
;
10062 struct lpfc_queue
*fpeq
;
10063 struct lpfc_eqe
*eqe
;
10064 unsigned long iflag
;
10066 uint32_t fcp_eqidx
;
10068 /* Get the driver's phba structure from the dev_id */
10069 fcp_eq_hdl
= (struct lpfc_fcp_eq_hdl
*)dev_id
;
10070 phba
= fcp_eq_hdl
->phba
;
10071 fcp_eqidx
= fcp_eq_hdl
->idx
;
10073 if (unlikely(!phba
))
10076 /* Get to the EQ struct associated with this vector */
10077 fpeq
= phba
->sli4_hba
.fp_eq
[fcp_eqidx
];
10079 /* Check device state for handling interrupt */
10080 if (unlikely(lpfc_intr_state_check(phba
))) {
10081 /* Check again for link_state with lock held */
10082 spin_lock_irqsave(&phba
->hbalock
, iflag
);
10083 if (phba
->link_state
< LPFC_LINK_DOWN
)
10084 /* Flush, clear interrupt, and rearm the EQ */
10085 lpfc_sli4_eq_flush(phba
, fpeq
);
10086 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
10091 * Process all the event on FCP fast-path EQ
10093 while ((eqe
= lpfc_sli4_eq_get(fpeq
))) {
10094 lpfc_sli4_fp_handle_eqe(phba
, eqe
, fcp_eqidx
);
10095 if (!(++ecount
% LPFC_GET_QE_REL_INT
))
10096 lpfc_sli4_eq_release(fpeq
, LPFC_QUEUE_NOARM
);
10099 /* Always clear and re-arm the fast-path EQ */
10100 lpfc_sli4_eq_release(fpeq
, LPFC_QUEUE_REARM
);
10102 if (unlikely(ecount
== 0)) {
10103 if (phba
->intr_type
== MSIX
)
10104 /* MSI-X treated interrupt served as no EQ share INT */
10105 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
10106 "0358 MSI-X interrupt with no EQE\n");
10108 /* Non MSI-X treated on interrupt as EQ share INT */
10112 return IRQ_HANDLED
;
10113 } /* lpfc_sli4_fp_intr_handler */
10116 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
10117 * @irq: Interrupt number.
10118 * @dev_id: The device context pointer.
10120 * This function is the device-level interrupt handler to device with SLI-4
10121 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
10122 * interrupt mode is enabled and there is an event in the HBA which requires
10123 * driver attention. This function invokes the slow-path interrupt attention
10124 * handling function and fast-path interrupt attention handling function in
10125 * turn to process the relevant HBA attention events. This function is called
10126 * without any lock held. It gets the hbalock to access and update SLI data
10129 * This function returns IRQ_HANDLED when interrupt is handled, else it
10130 * returns IRQ_NONE.
10133 lpfc_sli4_intr_handler(int irq
, void *dev_id
)
10135 struct lpfc_hba
*phba
;
10136 irqreturn_t sp_irq_rc
, fp_irq_rc
;
10137 bool fp_handled
= false;
10138 uint32_t fcp_eqidx
;
10140 /* Get the driver's phba structure from the dev_id */
10141 phba
= (struct lpfc_hba
*)dev_id
;
10143 if (unlikely(!phba
))
10147 * Invokes slow-path host attention interrupt handling as appropriate.
10149 sp_irq_rc
= lpfc_sli4_sp_intr_handler(irq
, dev_id
);
10152 * Invoke fast-path host attention interrupt handling as appropriate.
10154 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_eq_count
; fcp_eqidx
++) {
10155 fp_irq_rc
= lpfc_sli4_fp_intr_handler(irq
,
10156 &phba
->sli4_hba
.fcp_eq_hdl
[fcp_eqidx
]);
10157 if (fp_irq_rc
== IRQ_HANDLED
)
10158 fp_handled
|= true;
10161 return (fp_handled
== true) ? IRQ_HANDLED
: sp_irq_rc
;
10162 } /* lpfc_sli4_intr_handler */
10165 * lpfc_sli4_queue_free - free a queue structure and associated memory
10166 * @queue: The queue structure to free.
10168 * This function frees a queue structure and the DMAable memory used for
10169 * the host resident queue. This function must be called after destroying the
10170 * queue on the HBA.
10173 lpfc_sli4_queue_free(struct lpfc_queue
*queue
)
10175 struct lpfc_dmabuf
*dmabuf
;
10180 while (!list_empty(&queue
->page_list
)) {
10181 list_remove_head(&queue
->page_list
, dmabuf
, struct lpfc_dmabuf
,
10183 dma_free_coherent(&queue
->phba
->pcidev
->dev
, SLI4_PAGE_SIZE
,
10184 dmabuf
->virt
, dmabuf
->phys
);
10192 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
10193 * @phba: The HBA that this queue is being created on.
10194 * @entry_size: The size of each queue entry for this queue.
10195 * @entry count: The number of entries that this queue will handle.
10197 * This function allocates a queue structure and the DMAable memory used for
10198 * the host resident queue. This function must be called before creating the
10199 * queue on the HBA.
10201 struct lpfc_queue
*
10202 lpfc_sli4_queue_alloc(struct lpfc_hba
*phba
, uint32_t entry_size
,
10203 uint32_t entry_count
)
10205 struct lpfc_queue
*queue
;
10206 struct lpfc_dmabuf
*dmabuf
;
10207 int x
, total_qe_count
;
10209 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
10211 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
10212 hw_page_size
= SLI4_PAGE_SIZE
;
10214 queue
= kzalloc(sizeof(struct lpfc_queue
) +
10215 (sizeof(union sli4_qe
) * entry_count
), GFP_KERNEL
);
10218 queue
->page_count
= (ALIGN(entry_size
* entry_count
,
10219 hw_page_size
))/hw_page_size
;
10220 INIT_LIST_HEAD(&queue
->list
);
10221 INIT_LIST_HEAD(&queue
->page_list
);
10222 INIT_LIST_HEAD(&queue
->child_list
);
10223 for (x
= 0, total_qe_count
= 0; x
< queue
->page_count
; x
++) {
10224 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
10227 dmabuf
->virt
= dma_alloc_coherent(&phba
->pcidev
->dev
,
10228 hw_page_size
, &dmabuf
->phys
,
10230 if (!dmabuf
->virt
) {
10234 memset(dmabuf
->virt
, 0, hw_page_size
);
10235 dmabuf
->buffer_tag
= x
;
10236 list_add_tail(&dmabuf
->list
, &queue
->page_list
);
10237 /* initialize queue's entry array */
10238 dma_pointer
= dmabuf
->virt
;
10239 for (; total_qe_count
< entry_count
&&
10240 dma_pointer
< (hw_page_size
+ dmabuf
->virt
);
10241 total_qe_count
++, dma_pointer
+= entry_size
) {
10242 queue
->qe
[total_qe_count
].address
= dma_pointer
;
10245 queue
->entry_size
= entry_size
;
10246 queue
->entry_count
= entry_count
;
10247 queue
->phba
= phba
;
10251 lpfc_sli4_queue_free(queue
);
10256 * lpfc_eq_create - Create an Event Queue on the HBA
10257 * @phba: HBA structure that indicates port to create a queue on.
10258 * @eq: The queue structure to use to create the event queue.
10259 * @imax: The maximum interrupt per second limit.
10261 * This function creates an event queue, as detailed in @eq, on a port,
10262 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
10264 * The @phba struct is used to send mailbox command to HBA. The @eq struct
10265 * is used to get the entry count and entry size that are necessary to
10266 * determine the number of pages to allocate and use for this queue. This
10267 * function will send the EQ_CREATE mailbox command to the HBA to setup the
10268 * event queue. This function is asynchronous and will wait for the mailbox
10269 * command to finish before continuing.
10271 * On success this function will return a zero. If unable to allocate enough
10272 * memory this function will return -ENOMEM. If the queue create mailbox command
10273 * fails this function will return -ENXIO.
10276 lpfc_eq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*eq
, uint16_t imax
)
10278 struct lpfc_mbx_eq_create
*eq_create
;
10279 LPFC_MBOXQ_t
*mbox
;
10280 int rc
, length
, status
= 0;
10281 struct lpfc_dmabuf
*dmabuf
;
10282 uint32_t shdr_status
, shdr_add_status
;
10283 union lpfc_sli4_cfg_shdr
*shdr
;
10285 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
10287 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
10288 hw_page_size
= SLI4_PAGE_SIZE
;
10290 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
10293 length
= (sizeof(struct lpfc_mbx_eq_create
) -
10294 sizeof(struct lpfc_sli4_cfg_mhdr
));
10295 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
10296 LPFC_MBOX_OPCODE_EQ_CREATE
,
10297 length
, LPFC_SLI4_MBX_EMBED
);
10298 eq_create
= &mbox
->u
.mqe
.un
.eq_create
;
10299 bf_set(lpfc_mbx_eq_create_num_pages
, &eq_create
->u
.request
,
10301 bf_set(lpfc_eq_context_size
, &eq_create
->u
.request
.context
,
10303 bf_set(lpfc_eq_context_valid
, &eq_create
->u
.request
.context
, 1);
10304 /* Calculate delay multiper from maximum interrupt per second */
10305 dmult
= LPFC_DMULT_CONST
/imax
- 1;
10306 bf_set(lpfc_eq_context_delay_multi
, &eq_create
->u
.request
.context
,
10308 switch (eq
->entry_count
) {
10310 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
10311 "0360 Unsupported EQ count. (%d)\n",
10313 if (eq
->entry_count
< 256)
10315 /* otherwise default to smallest count (drop through) */
10317 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
10321 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
10325 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
10329 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
10333 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
10337 list_for_each_entry(dmabuf
, &eq
->page_list
, list
) {
10338 memset(dmabuf
->virt
, 0, hw_page_size
);
10339 eq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
10340 putPaddrLow(dmabuf
->phys
);
10341 eq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
10342 putPaddrHigh(dmabuf
->phys
);
10344 mbox
->vport
= phba
->pport
;
10345 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
10346 mbox
->context1
= NULL
;
10347 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10348 shdr
= (union lpfc_sli4_cfg_shdr
*) &eq_create
->header
.cfg_shdr
;
10349 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10350 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10351 if (shdr_status
|| shdr_add_status
|| rc
) {
10352 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10353 "2500 EQ_CREATE mailbox failed with "
10354 "status x%x add_status x%x, mbx status x%x\n",
10355 shdr_status
, shdr_add_status
, rc
);
10358 eq
->type
= LPFC_EQ
;
10359 eq
->subtype
= LPFC_NONE
;
10360 eq
->queue_id
= bf_get(lpfc_mbx_eq_create_q_id
, &eq_create
->u
.response
);
10361 if (eq
->queue_id
== 0xFFFF)
10363 eq
->host_index
= 0;
10366 mempool_free(mbox
, phba
->mbox_mem_pool
);
10371 * lpfc_cq_create - Create a Completion Queue on the HBA
10372 * @phba: HBA structure that indicates port to create a queue on.
10373 * @cq: The queue structure to use to create the completion queue.
10374 * @eq: The event queue to bind this completion queue to.
10376 * This function creates a completion queue, as detailed in @wq, on a port,
10377 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
10379 * The @phba struct is used to send mailbox command to HBA. The @cq struct
10380 * is used to get the entry count and entry size that are necessary to
10381 * determine the number of pages to allocate and use for this queue. The @eq
10382 * is used to indicate which event queue to bind this completion queue to. This
10383 * function will send the CQ_CREATE mailbox command to the HBA to setup the
10384 * completion queue. This function is asynchronous and will wait for the mailbox
10385 * command to finish before continuing.
10387 * On success this function will return a zero. If unable to allocate enough
10388 * memory this function will return -ENOMEM. If the queue create mailbox command
10389 * fails this function will return -ENXIO.
10392 lpfc_cq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
10393 struct lpfc_queue
*eq
, uint32_t type
, uint32_t subtype
)
10395 struct lpfc_mbx_cq_create
*cq_create
;
10396 struct lpfc_dmabuf
*dmabuf
;
10397 LPFC_MBOXQ_t
*mbox
;
10398 int rc
, length
, status
= 0;
10399 uint32_t shdr_status
, shdr_add_status
;
10400 union lpfc_sli4_cfg_shdr
*shdr
;
10401 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
10403 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
10404 hw_page_size
= SLI4_PAGE_SIZE
;
10407 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
10410 length
= (sizeof(struct lpfc_mbx_cq_create
) -
10411 sizeof(struct lpfc_sli4_cfg_mhdr
));
10412 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
10413 LPFC_MBOX_OPCODE_CQ_CREATE
,
10414 length
, LPFC_SLI4_MBX_EMBED
);
10415 cq_create
= &mbox
->u
.mqe
.un
.cq_create
;
10416 bf_set(lpfc_mbx_cq_create_num_pages
, &cq_create
->u
.request
,
10418 bf_set(lpfc_cq_context_event
, &cq_create
->u
.request
.context
, 1);
10419 bf_set(lpfc_cq_context_valid
, &cq_create
->u
.request
.context
, 1);
10420 bf_set(lpfc_cq_eq_id
, &cq_create
->u
.request
.context
, eq
->queue_id
);
10421 switch (cq
->entry_count
) {
10423 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
10424 "0361 Unsupported CQ count. (%d)\n",
10426 if (cq
->entry_count
< 256)
10428 /* otherwise default to smallest count (drop through) */
10430 bf_set(lpfc_cq_context_count
, &cq_create
->u
.request
.context
,
10434 bf_set(lpfc_cq_context_count
, &cq_create
->u
.request
.context
,
10438 bf_set(lpfc_cq_context_count
, &cq_create
->u
.request
.context
,
10442 list_for_each_entry(dmabuf
, &cq
->page_list
, list
) {
10443 memset(dmabuf
->virt
, 0, hw_page_size
);
10444 cq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
10445 putPaddrLow(dmabuf
->phys
);
10446 cq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
10447 putPaddrHigh(dmabuf
->phys
);
10449 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10451 /* The IOCTL status is embedded in the mailbox subheader. */
10452 shdr
= (union lpfc_sli4_cfg_shdr
*) &cq_create
->header
.cfg_shdr
;
10453 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10454 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10455 if (shdr_status
|| shdr_add_status
|| rc
) {
10456 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10457 "2501 CQ_CREATE mailbox failed with "
10458 "status x%x add_status x%x, mbx status x%x\n",
10459 shdr_status
, shdr_add_status
, rc
);
10463 cq
->queue_id
= bf_get(lpfc_mbx_cq_create_q_id
, &cq_create
->u
.response
);
10464 if (cq
->queue_id
== 0xFFFF) {
10468 /* link the cq onto the parent eq child list */
10469 list_add_tail(&cq
->list
, &eq
->child_list
);
10470 /* Set up completion queue's type and subtype */
10472 cq
->subtype
= subtype
;
10473 cq
->queue_id
= bf_get(lpfc_mbx_cq_create_q_id
, &cq_create
->u
.response
);
10474 cq
->host_index
= 0;
10478 mempool_free(mbox
, phba
->mbox_mem_pool
);
10483 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
10484 * @phba: HBA structure that indicates port to create a queue on.
10485 * @mq: The queue structure to use to create the mailbox queue.
10486 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
10487 * @cq: The completion queue to associate with this cq.
10489 * This function provides failback (fb) functionality when the
10490 * mq_create_ext fails on older FW generations. It's purpose is identical
10491 * to mq_create_ext otherwise.
10493 * This routine cannot fail as all attributes were previously accessed and
10494 * initialized in mq_create_ext.
10497 lpfc_mq_create_fb_init(struct lpfc_hba
*phba
, struct lpfc_queue
*mq
,
10498 LPFC_MBOXQ_t
*mbox
, struct lpfc_queue
*cq
)
10500 struct lpfc_mbx_mq_create
*mq_create
;
10501 struct lpfc_dmabuf
*dmabuf
;
10504 length
= (sizeof(struct lpfc_mbx_mq_create
) -
10505 sizeof(struct lpfc_sli4_cfg_mhdr
));
10506 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
10507 LPFC_MBOX_OPCODE_MQ_CREATE
,
10508 length
, LPFC_SLI4_MBX_EMBED
);
10509 mq_create
= &mbox
->u
.mqe
.un
.mq_create
;
10510 bf_set(lpfc_mbx_mq_create_num_pages
, &mq_create
->u
.request
,
10512 bf_set(lpfc_mq_context_cq_id
, &mq_create
->u
.request
.context
,
10514 bf_set(lpfc_mq_context_valid
, &mq_create
->u
.request
.context
, 1);
10515 switch (mq
->entry_count
) {
10517 bf_set(lpfc_mq_context_count
, &mq_create
->u
.request
.context
,
10521 bf_set(lpfc_mq_context_count
, &mq_create
->u
.request
.context
,
10525 bf_set(lpfc_mq_context_count
, &mq_create
->u
.request
.context
,
10529 bf_set(lpfc_mq_context_count
, &mq_create
->u
.request
.context
,
10533 list_for_each_entry(dmabuf
, &mq
->page_list
, list
) {
10534 mq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
10535 putPaddrLow(dmabuf
->phys
);
10536 mq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
10537 putPaddrHigh(dmabuf
->phys
);
10542 * lpfc_mq_create - Create a mailbox Queue on the HBA
10543 * @phba: HBA structure that indicates port to create a queue on.
10544 * @mq: The queue structure to use to create the mailbox queue.
10545 * @cq: The completion queue to associate with this cq.
10546 * @subtype: The queue's subtype.
10548 * This function creates a mailbox queue, as detailed in @mq, on a port,
10549 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
10551 * The @phba struct is used to send mailbox command to HBA. The @cq struct
10552 * is used to get the entry count and entry size that are necessary to
10553 * determine the number of pages to allocate and use for this queue. This
10554 * function will send the MQ_CREATE mailbox command to the HBA to setup the
10555 * mailbox queue. This function is asynchronous and will wait for the mailbox
10556 * command to finish before continuing.
10558 * On success this function will return a zero. If unable to allocate enough
10559 * memory this function will return -ENOMEM. If the queue create mailbox command
10560 * fails this function will return -ENXIO.
10563 lpfc_mq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*mq
,
10564 struct lpfc_queue
*cq
, uint32_t subtype
)
10566 struct lpfc_mbx_mq_create
*mq_create
;
10567 struct lpfc_mbx_mq_create_ext
*mq_create_ext
;
10568 struct lpfc_dmabuf
*dmabuf
;
10569 LPFC_MBOXQ_t
*mbox
;
10570 int rc
, length
, status
= 0;
10571 uint32_t shdr_status
, shdr_add_status
;
10572 union lpfc_sli4_cfg_shdr
*shdr
;
10573 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
10575 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
10576 hw_page_size
= SLI4_PAGE_SIZE
;
10578 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
10581 length
= (sizeof(struct lpfc_mbx_mq_create_ext
) -
10582 sizeof(struct lpfc_sli4_cfg_mhdr
));
10583 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
10584 LPFC_MBOX_OPCODE_MQ_CREATE_EXT
,
10585 length
, LPFC_SLI4_MBX_EMBED
);
10587 mq_create_ext
= &mbox
->u
.mqe
.un
.mq_create_ext
;
10588 bf_set(lpfc_mbx_mq_create_ext_num_pages
,
10589 &mq_create_ext
->u
.request
, mq
->page_count
);
10590 bf_set(lpfc_mbx_mq_create_ext_async_evt_link
,
10591 &mq_create_ext
->u
.request
, 1);
10592 bf_set(lpfc_mbx_mq_create_ext_async_evt_fip
,
10593 &mq_create_ext
->u
.request
, 1);
10594 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5
,
10595 &mq_create_ext
->u
.request
, 1);
10596 bf_set(lpfc_mbx_mq_create_ext_async_evt_fc
,
10597 &mq_create_ext
->u
.request
, 1);
10598 bf_set(lpfc_mbx_mq_create_ext_async_evt_sli
,
10599 &mq_create_ext
->u
.request
, 1);
10600 bf_set(lpfc_mq_context_cq_id
,
10601 &mq_create_ext
->u
.request
.context
, cq
->queue_id
);
10602 bf_set(lpfc_mq_context_valid
, &mq_create_ext
->u
.request
.context
, 1);
10603 switch (mq
->entry_count
) {
10605 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
10606 "0362 Unsupported MQ count. (%d)\n",
10608 if (mq
->entry_count
< 16)
10610 /* otherwise default to smallest count (drop through) */
10612 bf_set(lpfc_mq_context_count
, &mq_create_ext
->u
.request
.context
,
10616 bf_set(lpfc_mq_context_count
, &mq_create_ext
->u
.request
.context
,
10620 bf_set(lpfc_mq_context_count
, &mq_create_ext
->u
.request
.context
,
10624 bf_set(lpfc_mq_context_count
, &mq_create_ext
->u
.request
.context
,
10628 list_for_each_entry(dmabuf
, &mq
->page_list
, list
) {
10629 memset(dmabuf
->virt
, 0, hw_page_size
);
10630 mq_create_ext
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
10631 putPaddrLow(dmabuf
->phys
);
10632 mq_create_ext
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
10633 putPaddrHigh(dmabuf
->phys
);
10635 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10636 shdr
= (union lpfc_sli4_cfg_shdr
*) &mq_create_ext
->header
.cfg_shdr
;
10637 mq
->queue_id
= bf_get(lpfc_mbx_mq_create_q_id
,
10638 &mq_create_ext
->u
.response
);
10639 if (rc
!= MBX_SUCCESS
) {
10640 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
10641 "2795 MQ_CREATE_EXT failed with "
10642 "status x%x. Failback to MQ_CREATE.\n",
10644 lpfc_mq_create_fb_init(phba
, mq
, mbox
, cq
);
10645 mq_create
= &mbox
->u
.mqe
.un
.mq_create
;
10646 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10647 shdr
= (union lpfc_sli4_cfg_shdr
*) &mq_create
->header
.cfg_shdr
;
10648 mq
->queue_id
= bf_get(lpfc_mbx_mq_create_q_id
,
10649 &mq_create
->u
.response
);
10652 /* The IOCTL status is embedded in the mailbox subheader. */
10653 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10654 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10655 if (shdr_status
|| shdr_add_status
|| rc
) {
10656 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10657 "2502 MQ_CREATE mailbox failed with "
10658 "status x%x add_status x%x, mbx status x%x\n",
10659 shdr_status
, shdr_add_status
, rc
);
10663 if (mq
->queue_id
== 0xFFFF) {
10667 mq
->type
= LPFC_MQ
;
10668 mq
->subtype
= subtype
;
10669 mq
->host_index
= 0;
10672 /* link the mq onto the parent cq child list */
10673 list_add_tail(&mq
->list
, &cq
->child_list
);
10675 mempool_free(mbox
, phba
->mbox_mem_pool
);
10680 * lpfc_wq_create - Create a Work Queue on the HBA
10681 * @phba: HBA structure that indicates port to create a queue on.
10682 * @wq: The queue structure to use to create the work queue.
10683 * @cq: The completion queue to bind this work queue to.
10684 * @subtype: The subtype of the work queue indicating its functionality.
10686 * This function creates a work queue, as detailed in @wq, on a port, described
10687 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
10689 * The @phba struct is used to send mailbox command to HBA. The @wq struct
10690 * is used to get the entry count and entry size that are necessary to
10691 * determine the number of pages to allocate and use for this queue. The @cq
10692 * is used to indicate which completion queue to bind this work queue to. This
10693 * function will send the WQ_CREATE mailbox command to the HBA to setup the
10694 * work queue. This function is asynchronous and will wait for the mailbox
10695 * command to finish before continuing.
10697 * On success this function will return a zero. If unable to allocate enough
10698 * memory this function will return -ENOMEM. If the queue create mailbox command
10699 * fails this function will return -ENXIO.
10702 lpfc_wq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*wq
,
10703 struct lpfc_queue
*cq
, uint32_t subtype
)
10705 struct lpfc_mbx_wq_create
*wq_create
;
10706 struct lpfc_dmabuf
*dmabuf
;
10707 LPFC_MBOXQ_t
*mbox
;
10708 int rc
, length
, status
= 0;
10709 uint32_t shdr_status
, shdr_add_status
;
10710 union lpfc_sli4_cfg_shdr
*shdr
;
10711 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
10713 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
10714 hw_page_size
= SLI4_PAGE_SIZE
;
10716 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
10719 length
= (sizeof(struct lpfc_mbx_wq_create
) -
10720 sizeof(struct lpfc_sli4_cfg_mhdr
));
10721 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
10722 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE
,
10723 length
, LPFC_SLI4_MBX_EMBED
);
10724 wq_create
= &mbox
->u
.mqe
.un
.wq_create
;
10725 bf_set(lpfc_mbx_wq_create_num_pages
, &wq_create
->u
.request
,
10727 bf_set(lpfc_mbx_wq_create_cq_id
, &wq_create
->u
.request
,
10729 list_for_each_entry(dmabuf
, &wq
->page_list
, list
) {
10730 memset(dmabuf
->virt
, 0, hw_page_size
);
10731 wq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
10732 putPaddrLow(dmabuf
->phys
);
10733 wq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
10734 putPaddrHigh(dmabuf
->phys
);
10736 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10737 /* The IOCTL status is embedded in the mailbox subheader. */
10738 shdr
= (union lpfc_sli4_cfg_shdr
*) &wq_create
->header
.cfg_shdr
;
10739 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10740 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10741 if (shdr_status
|| shdr_add_status
|| rc
) {
10742 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10743 "2503 WQ_CREATE mailbox failed with "
10744 "status x%x add_status x%x, mbx status x%x\n",
10745 shdr_status
, shdr_add_status
, rc
);
10749 wq
->queue_id
= bf_get(lpfc_mbx_wq_create_q_id
, &wq_create
->u
.response
);
10750 if (wq
->queue_id
== 0xFFFF) {
10754 wq
->type
= LPFC_WQ
;
10755 wq
->subtype
= subtype
;
10756 wq
->host_index
= 0;
10759 /* link the wq onto the parent cq child list */
10760 list_add_tail(&wq
->list
, &cq
->child_list
);
10762 mempool_free(mbox
, phba
->mbox_mem_pool
);
10767 * lpfc_rq_create - Create a Receive Queue on the HBA
10768 * @phba: HBA structure that indicates port to create a queue on.
10769 * @hrq: The queue structure to use to create the header receive queue.
10770 * @drq: The queue structure to use to create the data receive queue.
10771 * @cq: The completion queue to bind this work queue to.
10773 * This function creates a receive buffer queue pair , as detailed in @hrq and
10774 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
10777 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
10778 * struct is used to get the entry count that is necessary to determine the
10779 * number of pages to use for this queue. The @cq is used to indicate which
10780 * completion queue to bind received buffers that are posted to these queues to.
10781 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
10782 * receive queue pair. This function is asynchronous and will wait for the
10783 * mailbox command to finish before continuing.
10785 * On success this function will return a zero. If unable to allocate enough
10786 * memory this function will return -ENOMEM. If the queue create mailbox command
10787 * fails this function will return -ENXIO.
10790 lpfc_rq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*hrq
,
10791 struct lpfc_queue
*drq
, struct lpfc_queue
*cq
, uint32_t subtype
)
10793 struct lpfc_mbx_rq_create
*rq_create
;
10794 struct lpfc_dmabuf
*dmabuf
;
10795 LPFC_MBOXQ_t
*mbox
;
10796 int rc
, length
, status
= 0;
10797 uint32_t shdr_status
, shdr_add_status
;
10798 union lpfc_sli4_cfg_shdr
*shdr
;
10799 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
10801 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
10802 hw_page_size
= SLI4_PAGE_SIZE
;
10804 if (hrq
->entry_count
!= drq
->entry_count
)
10806 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
10809 length
= (sizeof(struct lpfc_mbx_rq_create
) -
10810 sizeof(struct lpfc_sli4_cfg_mhdr
));
10811 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
10812 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE
,
10813 length
, LPFC_SLI4_MBX_EMBED
);
10814 rq_create
= &mbox
->u
.mqe
.un
.rq_create
;
10815 switch (hrq
->entry_count
) {
10817 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
10818 "2535 Unsupported RQ count. (%d)\n",
10820 if (hrq
->entry_count
< 512)
10822 /* otherwise default to smallest count (drop through) */
10824 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10825 LPFC_RQ_RING_SIZE_512
);
10828 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10829 LPFC_RQ_RING_SIZE_1024
);
10832 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10833 LPFC_RQ_RING_SIZE_2048
);
10836 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10837 LPFC_RQ_RING_SIZE_4096
);
10840 bf_set(lpfc_rq_context_cq_id
, &rq_create
->u
.request
.context
,
10842 bf_set(lpfc_mbx_rq_create_num_pages
, &rq_create
->u
.request
,
10844 bf_set(lpfc_rq_context_buf_size
, &rq_create
->u
.request
.context
,
10845 LPFC_HDR_BUF_SIZE
);
10846 list_for_each_entry(dmabuf
, &hrq
->page_list
, list
) {
10847 memset(dmabuf
->virt
, 0, hw_page_size
);
10848 rq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
10849 putPaddrLow(dmabuf
->phys
);
10850 rq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
10851 putPaddrHigh(dmabuf
->phys
);
10853 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10854 /* The IOCTL status is embedded in the mailbox subheader. */
10855 shdr
= (union lpfc_sli4_cfg_shdr
*) &rq_create
->header
.cfg_shdr
;
10856 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10857 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10858 if (shdr_status
|| shdr_add_status
|| rc
) {
10859 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10860 "2504 RQ_CREATE mailbox failed with "
10861 "status x%x add_status x%x, mbx status x%x\n",
10862 shdr_status
, shdr_add_status
, rc
);
10866 hrq
->queue_id
= bf_get(lpfc_mbx_rq_create_q_id
, &rq_create
->u
.response
);
10867 if (hrq
->queue_id
== 0xFFFF) {
10871 hrq
->type
= LPFC_HRQ
;
10872 hrq
->subtype
= subtype
;
10873 hrq
->host_index
= 0;
10874 hrq
->hba_index
= 0;
10876 /* now create the data queue */
10877 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
10878 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE
,
10879 length
, LPFC_SLI4_MBX_EMBED
);
10880 switch (drq
->entry_count
) {
10882 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
10883 "2536 Unsupported RQ count. (%d)\n",
10885 if (drq
->entry_count
< 512)
10887 /* otherwise default to smallest count (drop through) */
10889 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10890 LPFC_RQ_RING_SIZE_512
);
10893 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10894 LPFC_RQ_RING_SIZE_1024
);
10897 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10898 LPFC_RQ_RING_SIZE_2048
);
10901 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10902 LPFC_RQ_RING_SIZE_4096
);
10905 bf_set(lpfc_rq_context_cq_id
, &rq_create
->u
.request
.context
,
10907 bf_set(lpfc_mbx_rq_create_num_pages
, &rq_create
->u
.request
,
10909 bf_set(lpfc_rq_context_buf_size
, &rq_create
->u
.request
.context
,
10910 LPFC_DATA_BUF_SIZE
);
10911 list_for_each_entry(dmabuf
, &drq
->page_list
, list
) {
10912 rq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
10913 putPaddrLow(dmabuf
->phys
);
10914 rq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
10915 putPaddrHigh(dmabuf
->phys
);
10917 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10918 /* The IOCTL status is embedded in the mailbox subheader. */
10919 shdr
= (union lpfc_sli4_cfg_shdr
*) &rq_create
->header
.cfg_shdr
;
10920 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10921 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10922 if (shdr_status
|| shdr_add_status
|| rc
) {
10926 drq
->queue_id
= bf_get(lpfc_mbx_rq_create_q_id
, &rq_create
->u
.response
);
10927 if (drq
->queue_id
== 0xFFFF) {
10931 drq
->type
= LPFC_DRQ
;
10932 drq
->subtype
= subtype
;
10933 drq
->host_index
= 0;
10934 drq
->hba_index
= 0;
10936 /* link the header and data RQs onto the parent cq child list */
10937 list_add_tail(&hrq
->list
, &cq
->child_list
);
10938 list_add_tail(&drq
->list
, &cq
->child_list
);
10941 mempool_free(mbox
, phba
->mbox_mem_pool
);
10946 * lpfc_eq_destroy - Destroy an event Queue on the HBA
10947 * @eq: The queue structure associated with the queue to destroy.
10949 * This function destroys a queue, as detailed in @eq by sending an mailbox
10950 * command, specific to the type of queue, to the HBA.
10952 * The @eq struct is used to get the queue ID of the queue to destroy.
10954 * On success this function will return a zero. If the queue destroy mailbox
10955 * command fails this function will return -ENXIO.
10958 lpfc_eq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*eq
)
10960 LPFC_MBOXQ_t
*mbox
;
10961 int rc
, length
, status
= 0;
10962 uint32_t shdr_status
, shdr_add_status
;
10963 union lpfc_sli4_cfg_shdr
*shdr
;
10967 mbox
= mempool_alloc(eq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
10970 length
= (sizeof(struct lpfc_mbx_eq_destroy
) -
10971 sizeof(struct lpfc_sli4_cfg_mhdr
));
10972 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
10973 LPFC_MBOX_OPCODE_EQ_DESTROY
,
10974 length
, LPFC_SLI4_MBX_EMBED
);
10975 bf_set(lpfc_mbx_eq_destroy_q_id
, &mbox
->u
.mqe
.un
.eq_destroy
.u
.request
,
10977 mbox
->vport
= eq
->phba
->pport
;
10978 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
10980 rc
= lpfc_sli_issue_mbox(eq
->phba
, mbox
, MBX_POLL
);
10981 /* The IOCTL status is embedded in the mailbox subheader. */
10982 shdr
= (union lpfc_sli4_cfg_shdr
*)
10983 &mbox
->u
.mqe
.un
.eq_destroy
.header
.cfg_shdr
;
10984 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10985 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10986 if (shdr_status
|| shdr_add_status
|| rc
) {
10987 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10988 "2505 EQ_DESTROY mailbox failed with "
10989 "status x%x add_status x%x, mbx status x%x\n",
10990 shdr_status
, shdr_add_status
, rc
);
10994 /* Remove eq from any list */
10995 list_del_init(&eq
->list
);
10996 mempool_free(mbox
, eq
->phba
->mbox_mem_pool
);
11001 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
11002 * @cq: The queue structure associated with the queue to destroy.
11004 * This function destroys a queue, as detailed in @cq by sending an mailbox
11005 * command, specific to the type of queue, to the HBA.
11007 * The @cq struct is used to get the queue ID of the queue to destroy.
11009 * On success this function will return a zero. If the queue destroy mailbox
11010 * command fails this function will return -ENXIO.
11013 lpfc_cq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
)
11015 LPFC_MBOXQ_t
*mbox
;
11016 int rc
, length
, status
= 0;
11017 uint32_t shdr_status
, shdr_add_status
;
11018 union lpfc_sli4_cfg_shdr
*shdr
;
11022 mbox
= mempool_alloc(cq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
11025 length
= (sizeof(struct lpfc_mbx_cq_destroy
) -
11026 sizeof(struct lpfc_sli4_cfg_mhdr
));
11027 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
11028 LPFC_MBOX_OPCODE_CQ_DESTROY
,
11029 length
, LPFC_SLI4_MBX_EMBED
);
11030 bf_set(lpfc_mbx_cq_destroy_q_id
, &mbox
->u
.mqe
.un
.cq_destroy
.u
.request
,
11032 mbox
->vport
= cq
->phba
->pport
;
11033 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
11034 rc
= lpfc_sli_issue_mbox(cq
->phba
, mbox
, MBX_POLL
);
11035 /* The IOCTL status is embedded in the mailbox subheader. */
11036 shdr
= (union lpfc_sli4_cfg_shdr
*)
11037 &mbox
->u
.mqe
.un
.wq_create
.header
.cfg_shdr
;
11038 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
11039 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
11040 if (shdr_status
|| shdr_add_status
|| rc
) {
11041 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
11042 "2506 CQ_DESTROY mailbox failed with "
11043 "status x%x add_status x%x, mbx status x%x\n",
11044 shdr_status
, shdr_add_status
, rc
);
11047 /* Remove cq from any list */
11048 list_del_init(&cq
->list
);
11049 mempool_free(mbox
, cq
->phba
->mbox_mem_pool
);
11054 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
11055 * @qm: The queue structure associated with the queue to destroy.
11057 * This function destroys a queue, as detailed in @mq by sending an mailbox
11058 * command, specific to the type of queue, to the HBA.
11060 * The @mq struct is used to get the queue ID of the queue to destroy.
11062 * On success this function will return a zero. If the queue destroy mailbox
11063 * command fails this function will return -ENXIO.
11066 lpfc_mq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*mq
)
11068 LPFC_MBOXQ_t
*mbox
;
11069 int rc
, length
, status
= 0;
11070 uint32_t shdr_status
, shdr_add_status
;
11071 union lpfc_sli4_cfg_shdr
*shdr
;
11075 mbox
= mempool_alloc(mq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
11078 length
= (sizeof(struct lpfc_mbx_mq_destroy
) -
11079 sizeof(struct lpfc_sli4_cfg_mhdr
));
11080 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
11081 LPFC_MBOX_OPCODE_MQ_DESTROY
,
11082 length
, LPFC_SLI4_MBX_EMBED
);
11083 bf_set(lpfc_mbx_mq_destroy_q_id
, &mbox
->u
.mqe
.un
.mq_destroy
.u
.request
,
11085 mbox
->vport
= mq
->phba
->pport
;
11086 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
11087 rc
= lpfc_sli_issue_mbox(mq
->phba
, mbox
, MBX_POLL
);
11088 /* The IOCTL status is embedded in the mailbox subheader. */
11089 shdr
= (union lpfc_sli4_cfg_shdr
*)
11090 &mbox
->u
.mqe
.un
.mq_destroy
.header
.cfg_shdr
;
11091 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
11092 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
11093 if (shdr_status
|| shdr_add_status
|| rc
) {
11094 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
11095 "2507 MQ_DESTROY mailbox failed with "
11096 "status x%x add_status x%x, mbx status x%x\n",
11097 shdr_status
, shdr_add_status
, rc
);
11100 /* Remove mq from any list */
11101 list_del_init(&mq
->list
);
11102 mempool_free(mbox
, mq
->phba
->mbox_mem_pool
);
11107 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
11108 * @wq: The queue structure associated with the queue to destroy.
11110 * This function destroys a queue, as detailed in @wq by sending an mailbox
11111 * command, specific to the type of queue, to the HBA.
11113 * The @wq struct is used to get the queue ID of the queue to destroy.
11115 * On success this function will return a zero. If the queue destroy mailbox
11116 * command fails this function will return -ENXIO.
11119 lpfc_wq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*wq
)
11121 LPFC_MBOXQ_t
*mbox
;
11122 int rc
, length
, status
= 0;
11123 uint32_t shdr_status
, shdr_add_status
;
11124 union lpfc_sli4_cfg_shdr
*shdr
;
11128 mbox
= mempool_alloc(wq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
11131 length
= (sizeof(struct lpfc_mbx_wq_destroy
) -
11132 sizeof(struct lpfc_sli4_cfg_mhdr
));
11133 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
11134 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY
,
11135 length
, LPFC_SLI4_MBX_EMBED
);
11136 bf_set(lpfc_mbx_wq_destroy_q_id
, &mbox
->u
.mqe
.un
.wq_destroy
.u
.request
,
11138 mbox
->vport
= wq
->phba
->pport
;
11139 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
11140 rc
= lpfc_sli_issue_mbox(wq
->phba
, mbox
, MBX_POLL
);
11141 shdr
= (union lpfc_sli4_cfg_shdr
*)
11142 &mbox
->u
.mqe
.un
.wq_destroy
.header
.cfg_shdr
;
11143 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
11144 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
11145 if (shdr_status
|| shdr_add_status
|| rc
) {
11146 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
11147 "2508 WQ_DESTROY mailbox failed with "
11148 "status x%x add_status x%x, mbx status x%x\n",
11149 shdr_status
, shdr_add_status
, rc
);
11152 /* Remove wq from any list */
11153 list_del_init(&wq
->list
);
11154 mempool_free(mbox
, wq
->phba
->mbox_mem_pool
);
11159 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
11160 * @rq: The queue structure associated with the queue to destroy.
11162 * This function destroys a queue, as detailed in @rq by sending an mailbox
11163 * command, specific to the type of queue, to the HBA.
11165 * The @rq struct is used to get the queue ID of the queue to destroy.
11167 * On success this function will return a zero. If the queue destroy mailbox
11168 * command fails this function will return -ENXIO.
11171 lpfc_rq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*hrq
,
11172 struct lpfc_queue
*drq
)
11174 LPFC_MBOXQ_t
*mbox
;
11175 int rc
, length
, status
= 0;
11176 uint32_t shdr_status
, shdr_add_status
;
11177 union lpfc_sli4_cfg_shdr
*shdr
;
11181 mbox
= mempool_alloc(hrq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
11184 length
= (sizeof(struct lpfc_mbx_rq_destroy
) -
11185 sizeof(struct lpfc_sli4_cfg_mhdr
));
11186 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
11187 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY
,
11188 length
, LPFC_SLI4_MBX_EMBED
);
11189 bf_set(lpfc_mbx_rq_destroy_q_id
, &mbox
->u
.mqe
.un
.rq_destroy
.u
.request
,
11191 mbox
->vport
= hrq
->phba
->pport
;
11192 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
11193 rc
= lpfc_sli_issue_mbox(hrq
->phba
, mbox
, MBX_POLL
);
11194 /* The IOCTL status is embedded in the mailbox subheader. */
11195 shdr
= (union lpfc_sli4_cfg_shdr
*)
11196 &mbox
->u
.mqe
.un
.rq_destroy
.header
.cfg_shdr
;
11197 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
11198 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
11199 if (shdr_status
|| shdr_add_status
|| rc
) {
11200 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
11201 "2509 RQ_DESTROY mailbox failed with "
11202 "status x%x add_status x%x, mbx status x%x\n",
11203 shdr_status
, shdr_add_status
, rc
);
11204 if (rc
!= MBX_TIMEOUT
)
11205 mempool_free(mbox
, hrq
->phba
->mbox_mem_pool
);
11208 bf_set(lpfc_mbx_rq_destroy_q_id
, &mbox
->u
.mqe
.un
.rq_destroy
.u
.request
,
11210 rc
= lpfc_sli_issue_mbox(drq
->phba
, mbox
, MBX_POLL
);
11211 shdr
= (union lpfc_sli4_cfg_shdr
*)
11212 &mbox
->u
.mqe
.un
.rq_destroy
.header
.cfg_shdr
;
11213 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
11214 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
11215 if (shdr_status
|| shdr_add_status
|| rc
) {
11216 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
11217 "2510 RQ_DESTROY mailbox failed with "
11218 "status x%x add_status x%x, mbx status x%x\n",
11219 shdr_status
, shdr_add_status
, rc
);
11222 list_del_init(&hrq
->list
);
11223 list_del_init(&drq
->list
);
11224 mempool_free(mbox
, hrq
->phba
->mbox_mem_pool
);
11229 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
11230 * @phba: The virtual port for which this call being executed.
11231 * @pdma_phys_addr0: Physical address of the 1st SGL page.
11232 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
11233 * @xritag: the xritag that ties this io to the SGL pages.
11235 * This routine will post the sgl pages for the IO that has the xritag
11236 * that is in the iocbq structure. The xritag is assigned during iocbq
11237 * creation and persists for as long as the driver is loaded.
11238 * if the caller has fewer than 256 scatter gather segments to map then
11239 * pdma_phys_addr1 should be 0.
11240 * If the caller needs to map more than 256 scatter gather segment then
11241 * pdma_phys_addr1 should be a valid physical address.
11242 * physical address for SGLs must be 64 byte aligned.
11243 * If you are going to map 2 SGL's then the first one must have 256 entries
11244 * the second sgl can have between 1 and 256 entries.
11248 * -ENXIO, -ENOMEM - Failure
11251 lpfc_sli4_post_sgl(struct lpfc_hba
*phba
,
11252 dma_addr_t pdma_phys_addr0
,
11253 dma_addr_t pdma_phys_addr1
,
11256 struct lpfc_mbx_post_sgl_pages
*post_sgl_pages
;
11257 LPFC_MBOXQ_t
*mbox
;
11259 uint32_t shdr_status
, shdr_add_status
;
11260 union lpfc_sli4_cfg_shdr
*shdr
;
11262 if (xritag
== NO_XRI
) {
11263 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11264 "0364 Invalid param:\n");
11268 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
11272 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
11273 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES
,
11274 sizeof(struct lpfc_mbx_post_sgl_pages
) -
11275 sizeof(struct lpfc_sli4_cfg_mhdr
), LPFC_SLI4_MBX_EMBED
);
11277 post_sgl_pages
= (struct lpfc_mbx_post_sgl_pages
*)
11278 &mbox
->u
.mqe
.un
.post_sgl_pages
;
11279 bf_set(lpfc_post_sgl_pages_xri
, post_sgl_pages
, xritag
);
11280 bf_set(lpfc_post_sgl_pages_xricnt
, post_sgl_pages
, 1);
11282 post_sgl_pages
->sgl_pg_pairs
[0].sgl_pg0_addr_lo
=
11283 cpu_to_le32(putPaddrLow(pdma_phys_addr0
));
11284 post_sgl_pages
->sgl_pg_pairs
[0].sgl_pg0_addr_hi
=
11285 cpu_to_le32(putPaddrHigh(pdma_phys_addr0
));
11287 post_sgl_pages
->sgl_pg_pairs
[0].sgl_pg1_addr_lo
=
11288 cpu_to_le32(putPaddrLow(pdma_phys_addr1
));
11289 post_sgl_pages
->sgl_pg_pairs
[0].sgl_pg1_addr_hi
=
11290 cpu_to_le32(putPaddrHigh(pdma_phys_addr1
));
11291 if (!phba
->sli4_hba
.intr_enable
)
11292 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
11294 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, LPFC_MBOX_TMO
);
11295 /* The IOCTL status is embedded in the mailbox subheader. */
11296 shdr
= (union lpfc_sli4_cfg_shdr
*) &post_sgl_pages
->header
.cfg_shdr
;
11297 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
11298 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
11299 if (rc
!= MBX_TIMEOUT
)
11300 mempool_free(mbox
, phba
->mbox_mem_pool
);
11301 if (shdr_status
|| shdr_add_status
|| rc
) {
11302 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
11303 "2511 POST_SGL mailbox failed with "
11304 "status x%x add_status x%x, mbx status x%x\n",
11305 shdr_status
, shdr_add_status
, rc
);
11312 * lpfc_sli4_next_xritag - Get an xritag for the io
11313 * @phba: Pointer to HBA context object.
11315 * This function gets an xritag for the iocb. If there is no unused xritag
11316 * it will return 0xffff.
11317 * The function returns the allocated xritag if successful, else returns zero.
11318 * Zero is not a valid xritag.
11319 * The caller is not required to hold any lock.
11322 lpfc_sli4_next_xritag(struct lpfc_hba
*phba
)
11326 spin_lock_irq(&phba
->hbalock
);
11327 xritag
= phba
->sli4_hba
.next_xri
;
11328 if ((xritag
!= (uint16_t) -1) && xritag
<
11329 (phba
->sli4_hba
.max_cfg_param
.max_xri
11330 + phba
->sli4_hba
.max_cfg_param
.xri_base
)) {
11331 phba
->sli4_hba
.next_xri
++;
11332 phba
->sli4_hba
.max_cfg_param
.xri_used
++;
11333 spin_unlock_irq(&phba
->hbalock
);
11336 spin_unlock_irq(&phba
->hbalock
);
11337 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
11338 "2004 Failed to allocate XRI.last XRITAG is %d"
11339 " Max XRI is %d, Used XRI is %d\n",
11340 phba
->sli4_hba
.next_xri
,
11341 phba
->sli4_hba
.max_cfg_param
.max_xri
,
11342 phba
->sli4_hba
.max_cfg_param
.xri_used
);
11347 * lpfc_sli4_post_sgl_list - post a block of sgl list to the firmware.
11348 * @phba: pointer to lpfc hba data structure.
11350 * This routine is invoked to post a block of driver's sgl pages to the
11351 * HBA using non-embedded mailbox command. No Lock is held. This routine
11352 * is only called when the driver is loading and after all IO has been
11356 lpfc_sli4_post_sgl_list(struct lpfc_hba
*phba
)
11358 struct lpfc_sglq
*sglq_entry
;
11359 struct lpfc_mbx_post_uembed_sgl_page1
*sgl
;
11360 struct sgl_page_pairs
*sgl_pg_pairs
;
11362 LPFC_MBOXQ_t
*mbox
;
11363 uint32_t reqlen
, alloclen
, pg_pairs
;
11365 uint16_t xritag_start
= 0;
11366 int els_xri_cnt
, rc
= 0;
11367 uint32_t shdr_status
, shdr_add_status
;
11368 union lpfc_sli4_cfg_shdr
*shdr
;
11370 /* The number of sgls to be posted */
11371 els_xri_cnt
= lpfc_sli4_get_els_iocb_cnt(phba
);
11373 reqlen
= els_xri_cnt
* sizeof(struct sgl_page_pairs
) +
11374 sizeof(union lpfc_sli4_cfg_shdr
) + sizeof(uint32_t);
11375 if (reqlen
> SLI4_PAGE_SIZE
) {
11376 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
11377 "2559 Block sgl registration required DMA "
11378 "size (%d) great than a page\n", reqlen
);
11381 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
11383 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
11384 "2560 Failed to allocate mbox cmd memory\n");
11388 /* Allocate DMA memory and set up the non-embedded mailbox command */
11389 alloclen
= lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
11390 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES
, reqlen
,
11391 LPFC_SLI4_MBX_NEMBED
);
11393 if (alloclen
< reqlen
) {
11394 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
11395 "0285 Allocated DMA memory size (%d) is "
11396 "less than the requested DMA memory "
11397 "size (%d)\n", alloclen
, reqlen
);
11398 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
11401 /* Get the first SGE entry from the non-embedded DMA memory */
11402 viraddr
= mbox
->sge_array
->addr
[0];
11404 /* Set up the SGL pages in the non-embedded DMA pages */
11405 sgl
= (struct lpfc_mbx_post_uembed_sgl_page1
*)viraddr
;
11406 sgl_pg_pairs
= &sgl
->sgl_pg_pairs
;
11408 for (pg_pairs
= 0; pg_pairs
< els_xri_cnt
; pg_pairs
++) {
11409 sglq_entry
= phba
->sli4_hba
.lpfc_els_sgl_array
[pg_pairs
];
11410 /* Set up the sge entry */
11411 sgl_pg_pairs
->sgl_pg0_addr_lo
=
11412 cpu_to_le32(putPaddrLow(sglq_entry
->phys
));
11413 sgl_pg_pairs
->sgl_pg0_addr_hi
=
11414 cpu_to_le32(putPaddrHigh(sglq_entry
->phys
));
11415 sgl_pg_pairs
->sgl_pg1_addr_lo
=
11416 cpu_to_le32(putPaddrLow(0));
11417 sgl_pg_pairs
->sgl_pg1_addr_hi
=
11418 cpu_to_le32(putPaddrHigh(0));
11419 /* Keep the first xritag on the list */
11421 xritag_start
= sglq_entry
->sli4_xritag
;
11424 bf_set(lpfc_post_sgl_pages_xri
, sgl
, xritag_start
);
11425 bf_set(lpfc_post_sgl_pages_xricnt
, sgl
, els_xri_cnt
);
11426 /* Perform endian conversion if necessary */
11427 sgl
->word0
= cpu_to_le32(sgl
->word0
);
11429 if (!phba
->sli4_hba
.intr_enable
)
11430 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
11432 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_SLI4_CONFIG
);
11433 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
11435 shdr
= (union lpfc_sli4_cfg_shdr
*) &sgl
->cfg_shdr
;
11436 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
11437 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
11438 if (rc
!= MBX_TIMEOUT
)
11439 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
11440 if (shdr_status
|| shdr_add_status
|| rc
) {
11441 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11442 "2513 POST_SGL_BLOCK mailbox command failed "
11443 "status x%x add_status x%x mbx status x%x\n",
11444 shdr_status
, shdr_add_status
, rc
);
11451 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
11452 * @phba: pointer to lpfc hba data structure.
11453 * @sblist: pointer to scsi buffer list.
11454 * @count: number of scsi buffers on the list.
11456 * This routine is invoked to post a block of @count scsi sgl pages from a
11457 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
11462 lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba
*phba
, struct list_head
*sblist
,
11465 struct lpfc_scsi_buf
*psb
;
11466 struct lpfc_mbx_post_uembed_sgl_page1
*sgl
;
11467 struct sgl_page_pairs
*sgl_pg_pairs
;
11469 LPFC_MBOXQ_t
*mbox
;
11470 uint32_t reqlen
, alloclen
, pg_pairs
;
11472 uint16_t xritag_start
= 0;
11474 uint32_t shdr_status
, shdr_add_status
;
11475 dma_addr_t pdma_phys_bpl1
;
11476 union lpfc_sli4_cfg_shdr
*shdr
;
11478 /* Calculate the requested length of the dma memory */
11479 reqlen
= cnt
* sizeof(struct sgl_page_pairs
) +
11480 sizeof(union lpfc_sli4_cfg_shdr
) + sizeof(uint32_t);
11481 if (reqlen
> SLI4_PAGE_SIZE
) {
11482 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
11483 "0217 Block sgl registration required DMA "
11484 "size (%d) great than a page\n", reqlen
);
11487 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
11489 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
11490 "0283 Failed to allocate mbox cmd memory\n");
11494 /* Allocate DMA memory and set up the non-embedded mailbox command */
11495 alloclen
= lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
11496 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES
, reqlen
,
11497 LPFC_SLI4_MBX_NEMBED
);
11499 if (alloclen
< reqlen
) {
11500 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
11501 "2561 Allocated DMA memory size (%d) is "
11502 "less than the requested DMA memory "
11503 "size (%d)\n", alloclen
, reqlen
);
11504 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
11507 /* Get the first SGE entry from the non-embedded DMA memory */
11508 viraddr
= mbox
->sge_array
->addr
[0];
11510 /* Set up the SGL pages in the non-embedded DMA pages */
11511 sgl
= (struct lpfc_mbx_post_uembed_sgl_page1
*)viraddr
;
11512 sgl_pg_pairs
= &sgl
->sgl_pg_pairs
;
11515 list_for_each_entry(psb
, sblist
, list
) {
11516 /* Set up the sge entry */
11517 sgl_pg_pairs
->sgl_pg0_addr_lo
=
11518 cpu_to_le32(putPaddrLow(psb
->dma_phys_bpl
));
11519 sgl_pg_pairs
->sgl_pg0_addr_hi
=
11520 cpu_to_le32(putPaddrHigh(psb
->dma_phys_bpl
));
11521 if (phba
->cfg_sg_dma_buf_size
> SGL_PAGE_SIZE
)
11522 pdma_phys_bpl1
= psb
->dma_phys_bpl
+ SGL_PAGE_SIZE
;
11524 pdma_phys_bpl1
= 0;
11525 sgl_pg_pairs
->sgl_pg1_addr_lo
=
11526 cpu_to_le32(putPaddrLow(pdma_phys_bpl1
));
11527 sgl_pg_pairs
->sgl_pg1_addr_hi
=
11528 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1
));
11529 /* Keep the first xritag on the list */
11531 xritag_start
= psb
->cur_iocbq
.sli4_xritag
;
11535 bf_set(lpfc_post_sgl_pages_xri
, sgl
, xritag_start
);
11536 bf_set(lpfc_post_sgl_pages_xricnt
, sgl
, pg_pairs
);
11537 /* Perform endian conversion if necessary */
11538 sgl
->word0
= cpu_to_le32(sgl
->word0
);
11540 if (!phba
->sli4_hba
.intr_enable
)
11541 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
11543 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_SLI4_CONFIG
);
11544 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
11546 shdr
= (union lpfc_sli4_cfg_shdr
*) &sgl
->cfg_shdr
;
11547 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
11548 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
11549 if (rc
!= MBX_TIMEOUT
)
11550 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
11551 if (shdr_status
|| shdr_add_status
|| rc
) {
11552 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11553 "2564 POST_SGL_BLOCK mailbox command failed "
11554 "status x%x add_status x%x mbx status x%x\n",
11555 shdr_status
, shdr_add_status
, rc
);
11562 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
11563 * @phba: pointer to lpfc_hba struct that the frame was received on
11564 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
11566 * This function checks the fields in the @fc_hdr to see if the FC frame is a
11567 * valid type of frame that the LPFC driver will handle. This function will
11568 * return a zero if the frame is a valid frame or a non zero value when the
11569 * frame does not pass the check.
11572 lpfc_fc_frame_check(struct lpfc_hba
*phba
, struct fc_frame_header
*fc_hdr
)
11574 /* make rctl_names static to save stack space */
11575 static char *rctl_names
[] = FC_RCTL_NAMES_INIT
;
11576 char *type_names
[] = FC_TYPE_NAMES_INIT
;
11577 struct fc_vft_header
*fc_vft_hdr
;
11579 switch (fc_hdr
->fh_r_ctl
) {
11580 case FC_RCTL_DD_UNCAT
: /* uncategorized information */
11581 case FC_RCTL_DD_SOL_DATA
: /* solicited data */
11582 case FC_RCTL_DD_UNSOL_CTL
: /* unsolicited control */
11583 case FC_RCTL_DD_SOL_CTL
: /* solicited control or reply */
11584 case FC_RCTL_DD_UNSOL_DATA
: /* unsolicited data */
11585 case FC_RCTL_DD_DATA_DESC
: /* data descriptor */
11586 case FC_RCTL_DD_UNSOL_CMD
: /* unsolicited command */
11587 case FC_RCTL_DD_CMD_STATUS
: /* command status */
11588 case FC_RCTL_ELS_REQ
: /* extended link services request */
11589 case FC_RCTL_ELS_REP
: /* extended link services reply */
11590 case FC_RCTL_ELS4_REQ
: /* FC-4 ELS request */
11591 case FC_RCTL_ELS4_REP
: /* FC-4 ELS reply */
11592 case FC_RCTL_BA_NOP
: /* basic link service NOP */
11593 case FC_RCTL_BA_ABTS
: /* basic link service abort */
11594 case FC_RCTL_BA_RMC
: /* remove connection */
11595 case FC_RCTL_BA_ACC
: /* basic accept */
11596 case FC_RCTL_BA_RJT
: /* basic reject */
11597 case FC_RCTL_BA_PRMT
:
11598 case FC_RCTL_ACK_1
: /* acknowledge_1 */
11599 case FC_RCTL_ACK_0
: /* acknowledge_0 */
11600 case FC_RCTL_P_RJT
: /* port reject */
11601 case FC_RCTL_F_RJT
: /* fabric reject */
11602 case FC_RCTL_P_BSY
: /* port busy */
11603 case FC_RCTL_F_BSY
: /* fabric busy to data frame */
11604 case FC_RCTL_F_BSYL
: /* fabric busy to link control frame */
11605 case FC_RCTL_LCR
: /* link credit reset */
11606 case FC_RCTL_END
: /* end */
11608 case FC_RCTL_VFTH
: /* Virtual Fabric tagging Header */
11609 fc_vft_hdr
= (struct fc_vft_header
*)fc_hdr
;
11610 fc_hdr
= &((struct fc_frame_header
*)fc_vft_hdr
)[1];
11611 return lpfc_fc_frame_check(phba
, fc_hdr
);
11615 switch (fc_hdr
->fh_type
) {
11626 lpfc_printf_log(phba
, KERN_INFO
, LOG_ELS
,
11627 "2538 Received frame rctl:%s type:%s\n",
11628 rctl_names
[fc_hdr
->fh_r_ctl
],
11629 type_names
[fc_hdr
->fh_type
]);
11632 lpfc_printf_log(phba
, KERN_WARNING
, LOG_ELS
,
11633 "2539 Dropped frame rctl:%s type:%s\n",
11634 rctl_names
[fc_hdr
->fh_r_ctl
],
11635 type_names
[fc_hdr
->fh_type
]);
11640 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
11641 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
11643 * This function processes the FC header to retrieve the VFI from the VF
11644 * header, if one exists. This function will return the VFI if one exists
11645 * or 0 if no VSAN Header exists.
11648 lpfc_fc_hdr_get_vfi(struct fc_frame_header
*fc_hdr
)
11650 struct fc_vft_header
*fc_vft_hdr
= (struct fc_vft_header
*)fc_hdr
;
11652 if (fc_hdr
->fh_r_ctl
!= FC_RCTL_VFTH
)
11654 return bf_get(fc_vft_hdr_vf_id
, fc_vft_hdr
);
11658 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
11659 * @phba: Pointer to the HBA structure to search for the vport on
11660 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
11661 * @fcfi: The FC Fabric ID that the frame came from
11663 * This function searches the @phba for a vport that matches the content of the
11664 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
11665 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
11666 * returns the matching vport pointer or NULL if unable to match frame to a
11669 static struct lpfc_vport
*
11670 lpfc_fc_frame_to_vport(struct lpfc_hba
*phba
, struct fc_frame_header
*fc_hdr
,
11673 struct lpfc_vport
**vports
;
11674 struct lpfc_vport
*vport
= NULL
;
11676 uint32_t did
= (fc_hdr
->fh_d_id
[0] << 16 |
11677 fc_hdr
->fh_d_id
[1] << 8 |
11678 fc_hdr
->fh_d_id
[2]);
11680 vports
= lpfc_create_vport_work_array(phba
);
11681 if (vports
!= NULL
)
11682 for (i
= 0; i
<= phba
->max_vpi
&& vports
[i
] != NULL
; i
++) {
11683 if (phba
->fcf
.fcfi
== fcfi
&&
11684 vports
[i
]->vfi
== lpfc_fc_hdr_get_vfi(fc_hdr
) &&
11685 vports
[i
]->fc_myDID
== did
) {
11690 lpfc_destroy_vport_work_array(phba
, vports
);
11695 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
11696 * @vport: The vport to work on.
11698 * This function updates the receive sequence time stamp for this vport. The
11699 * receive sequence time stamp indicates the time that the last frame of the
11700 * the sequence that has been idle for the longest amount of time was received.
11701 * the driver uses this time stamp to indicate if any received sequences have
11705 lpfc_update_rcv_time_stamp(struct lpfc_vport
*vport
)
11707 struct lpfc_dmabuf
*h_buf
;
11708 struct hbq_dmabuf
*dmabuf
= NULL
;
11710 /* get the oldest sequence on the rcv list */
11711 h_buf
= list_get_first(&vport
->rcv_buffer_list
,
11712 struct lpfc_dmabuf
, list
);
11715 dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
11716 vport
->rcv_buffer_time_stamp
= dmabuf
->time_stamp
;
11720 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
11721 * @vport: The vport that the received sequences were sent to.
11723 * This function cleans up all outstanding received sequences. This is called
11724 * by the driver when a link event or user action invalidates all the received
11728 lpfc_cleanup_rcv_buffers(struct lpfc_vport
*vport
)
11730 struct lpfc_dmabuf
*h_buf
, *hnext
;
11731 struct lpfc_dmabuf
*d_buf
, *dnext
;
11732 struct hbq_dmabuf
*dmabuf
= NULL
;
11734 /* start with the oldest sequence on the rcv list */
11735 list_for_each_entry_safe(h_buf
, hnext
, &vport
->rcv_buffer_list
, list
) {
11736 dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
11737 list_del_init(&dmabuf
->hbuf
.list
);
11738 list_for_each_entry_safe(d_buf
, dnext
,
11739 &dmabuf
->dbuf
.list
, list
) {
11740 list_del_init(&d_buf
->list
);
11741 lpfc_in_buf_free(vport
->phba
, d_buf
);
11743 lpfc_in_buf_free(vport
->phba
, &dmabuf
->dbuf
);
11748 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
11749 * @vport: The vport that the received sequences were sent to.
11751 * This function determines whether any received sequences have timed out by
11752 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
11753 * indicates that there is at least one timed out sequence this routine will
11754 * go through the received sequences one at a time from most inactive to most
11755 * active to determine which ones need to be cleaned up. Once it has determined
11756 * that a sequence needs to be cleaned up it will simply free up the resources
11757 * without sending an abort.
11760 lpfc_rcv_seq_check_edtov(struct lpfc_vport
*vport
)
11762 struct lpfc_dmabuf
*h_buf
, *hnext
;
11763 struct lpfc_dmabuf
*d_buf
, *dnext
;
11764 struct hbq_dmabuf
*dmabuf
= NULL
;
11765 unsigned long timeout
;
11766 int abort_count
= 0;
11768 timeout
= (msecs_to_jiffies(vport
->phba
->fc_edtov
) +
11769 vport
->rcv_buffer_time_stamp
);
11770 if (list_empty(&vport
->rcv_buffer_list
) ||
11771 time_before(jiffies
, timeout
))
11773 /* start with the oldest sequence on the rcv list */
11774 list_for_each_entry_safe(h_buf
, hnext
, &vport
->rcv_buffer_list
, list
) {
11775 dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
11776 timeout
= (msecs_to_jiffies(vport
->phba
->fc_edtov
) +
11777 dmabuf
->time_stamp
);
11778 if (time_before(jiffies
, timeout
))
11781 list_del_init(&dmabuf
->hbuf
.list
);
11782 list_for_each_entry_safe(d_buf
, dnext
,
11783 &dmabuf
->dbuf
.list
, list
) {
11784 list_del_init(&d_buf
->list
);
11785 lpfc_in_buf_free(vport
->phba
, d_buf
);
11787 lpfc_in_buf_free(vport
->phba
, &dmabuf
->dbuf
);
11790 lpfc_update_rcv_time_stamp(vport
);
11794 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
11795 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
11797 * This function searches through the existing incomplete sequences that have
11798 * been sent to this @vport. If the frame matches one of the incomplete
11799 * sequences then the dbuf in the @dmabuf is added to the list of frames that
11800 * make up that sequence. If no sequence is found that matches this frame then
11801 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
11802 * This function returns a pointer to the first dmabuf in the sequence list that
11803 * the frame was linked to.
11805 static struct hbq_dmabuf
*
11806 lpfc_fc_frame_add(struct lpfc_vport
*vport
, struct hbq_dmabuf
*dmabuf
)
11808 struct fc_frame_header
*new_hdr
;
11809 struct fc_frame_header
*temp_hdr
;
11810 struct lpfc_dmabuf
*d_buf
;
11811 struct lpfc_dmabuf
*h_buf
;
11812 struct hbq_dmabuf
*seq_dmabuf
= NULL
;
11813 struct hbq_dmabuf
*temp_dmabuf
= NULL
;
11815 INIT_LIST_HEAD(&dmabuf
->dbuf
.list
);
11816 dmabuf
->time_stamp
= jiffies
;
11817 new_hdr
= (struct fc_frame_header
*)dmabuf
->hbuf
.virt
;
11818 /* Use the hdr_buf to find the sequence that this frame belongs to */
11819 list_for_each_entry(h_buf
, &vport
->rcv_buffer_list
, list
) {
11820 temp_hdr
= (struct fc_frame_header
*)h_buf
->virt
;
11821 if ((temp_hdr
->fh_seq_id
!= new_hdr
->fh_seq_id
) ||
11822 (temp_hdr
->fh_ox_id
!= new_hdr
->fh_ox_id
) ||
11823 (memcmp(&temp_hdr
->fh_s_id
, &new_hdr
->fh_s_id
, 3)))
11825 /* found a pending sequence that matches this frame */
11826 seq_dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
11831 * This indicates first frame received for this sequence.
11832 * Queue the buffer on the vport's rcv_buffer_list.
11834 list_add_tail(&dmabuf
->hbuf
.list
, &vport
->rcv_buffer_list
);
11835 lpfc_update_rcv_time_stamp(vport
);
11838 temp_hdr
= seq_dmabuf
->hbuf
.virt
;
11839 if (be16_to_cpu(new_hdr
->fh_seq_cnt
) <
11840 be16_to_cpu(temp_hdr
->fh_seq_cnt
)) {
11841 list_del_init(&seq_dmabuf
->hbuf
.list
);
11842 list_add_tail(&dmabuf
->hbuf
.list
, &vport
->rcv_buffer_list
);
11843 list_add_tail(&dmabuf
->dbuf
.list
, &seq_dmabuf
->dbuf
.list
);
11844 lpfc_update_rcv_time_stamp(vport
);
11847 /* move this sequence to the tail to indicate a young sequence */
11848 list_move_tail(&seq_dmabuf
->hbuf
.list
, &vport
->rcv_buffer_list
);
11849 seq_dmabuf
->time_stamp
= jiffies
;
11850 lpfc_update_rcv_time_stamp(vport
);
11851 if (list_empty(&seq_dmabuf
->dbuf
.list
)) {
11852 temp_hdr
= dmabuf
->hbuf
.virt
;
11853 list_add_tail(&dmabuf
->dbuf
.list
, &seq_dmabuf
->dbuf
.list
);
11856 /* find the correct place in the sequence to insert this frame */
11857 list_for_each_entry_reverse(d_buf
, &seq_dmabuf
->dbuf
.list
, list
) {
11858 temp_dmabuf
= container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
11859 temp_hdr
= (struct fc_frame_header
*)temp_dmabuf
->hbuf
.virt
;
11861 * If the frame's sequence count is greater than the frame on
11862 * the list then insert the frame right after this frame
11864 if (be16_to_cpu(new_hdr
->fh_seq_cnt
) >
11865 be16_to_cpu(temp_hdr
->fh_seq_cnt
)) {
11866 list_add(&dmabuf
->dbuf
.list
, &temp_dmabuf
->dbuf
.list
);
11874 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
11875 * @vport: pointer to a vitural port
11876 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11878 * This function tries to abort from the partially assembed sequence, described
11879 * by the information from basic abbort @dmabuf. It checks to see whether such
11880 * partially assembled sequence held by the driver. If so, it shall free up all
11881 * the frames from the partially assembled sequence.
11884 * true -- if there is matching partially assembled sequence present and all
11885 * the frames freed with the sequence;
11886 * false -- if there is no matching partially assembled sequence present so
11887 * nothing got aborted in the lower layer driver
11890 lpfc_sli4_abort_partial_seq(struct lpfc_vport
*vport
,
11891 struct hbq_dmabuf
*dmabuf
)
11893 struct fc_frame_header
*new_hdr
;
11894 struct fc_frame_header
*temp_hdr
;
11895 struct lpfc_dmabuf
*d_buf
, *n_buf
, *h_buf
;
11896 struct hbq_dmabuf
*seq_dmabuf
= NULL
;
11898 /* Use the hdr_buf to find the sequence that matches this frame */
11899 INIT_LIST_HEAD(&dmabuf
->dbuf
.list
);
11900 INIT_LIST_HEAD(&dmabuf
->hbuf
.list
);
11901 new_hdr
= (struct fc_frame_header
*)dmabuf
->hbuf
.virt
;
11902 list_for_each_entry(h_buf
, &vport
->rcv_buffer_list
, list
) {
11903 temp_hdr
= (struct fc_frame_header
*)h_buf
->virt
;
11904 if ((temp_hdr
->fh_seq_id
!= new_hdr
->fh_seq_id
) ||
11905 (temp_hdr
->fh_ox_id
!= new_hdr
->fh_ox_id
) ||
11906 (memcmp(&temp_hdr
->fh_s_id
, &new_hdr
->fh_s_id
, 3)))
11908 /* found a pending sequence that matches this frame */
11909 seq_dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
11913 /* Free up all the frames from the partially assembled sequence */
11915 list_for_each_entry_safe(d_buf
, n_buf
,
11916 &seq_dmabuf
->dbuf
.list
, list
) {
11917 list_del_init(&d_buf
->list
);
11918 lpfc_in_buf_free(vport
->phba
, d_buf
);
11926 * lpfc_sli4_seq_abort_acc_cmpl - Accept seq abort iocb complete handler
11927 * @phba: Pointer to HBA context object.
11928 * @cmd_iocbq: pointer to the command iocbq structure.
11929 * @rsp_iocbq: pointer to the response iocbq structure.
11931 * This function handles the sequence abort accept iocb command complete
11932 * event. It properly releases the memory allocated to the sequence abort
11936 lpfc_sli4_seq_abort_acc_cmpl(struct lpfc_hba
*phba
,
11937 struct lpfc_iocbq
*cmd_iocbq
,
11938 struct lpfc_iocbq
*rsp_iocbq
)
11941 lpfc_sli_release_iocbq(phba
, cmd_iocbq
);
11945 * lpfc_sli4_seq_abort_acc - Accept sequence abort
11946 * @phba: Pointer to HBA context object.
11947 * @fc_hdr: pointer to a FC frame header.
11949 * This function sends a basic accept to a previous unsol sequence abort
11950 * event after aborting the sequence handling.
11953 lpfc_sli4_seq_abort_acc(struct lpfc_hba
*phba
,
11954 struct fc_frame_header
*fc_hdr
)
11956 struct lpfc_iocbq
*ctiocb
= NULL
;
11957 struct lpfc_nodelist
*ndlp
;
11958 uint16_t oxid
, rxid
;
11959 uint32_t sid
, fctl
;
11962 if (!lpfc_is_link_up(phba
))
11965 sid
= sli4_sid_from_fc_hdr(fc_hdr
);
11966 oxid
= be16_to_cpu(fc_hdr
->fh_ox_id
);
11967 rxid
= be16_to_cpu(fc_hdr
->fh_rx_id
);
11969 ndlp
= lpfc_findnode_did(phba
->pport
, sid
);
11971 lpfc_printf_log(phba
, KERN_WARNING
, LOG_ELS
,
11972 "1268 Find ndlp returned NULL for oxid:x%x "
11973 "SID:x%x\n", oxid
, sid
);
11976 if (rxid
>= phba
->sli4_hba
.max_cfg_param
.xri_base
11977 && rxid
<= (phba
->sli4_hba
.max_cfg_param
.max_xri
11978 + phba
->sli4_hba
.max_cfg_param
.xri_base
))
11979 lpfc_set_rrq_active(phba
, ndlp
, rxid
, oxid
, 0);
11981 /* Allocate buffer for acc iocb */
11982 ctiocb
= lpfc_sli_get_iocbq(phba
);
11986 /* Extract the F_CTL field from FC_HDR */
11987 fctl
= sli4_fctl_from_fc_hdr(fc_hdr
);
11989 icmd
= &ctiocb
->iocb
;
11990 icmd
->un
.xseq64
.bdl
.bdeSize
= 0;
11991 icmd
->un
.xseq64
.bdl
.ulpIoTag32
= 0;
11992 icmd
->un
.xseq64
.w5
.hcsw
.Dfctl
= 0;
11993 icmd
->un
.xseq64
.w5
.hcsw
.Rctl
= FC_RCTL_BA_ACC
;
11994 icmd
->un
.xseq64
.w5
.hcsw
.Type
= FC_TYPE_BLS
;
11996 /* Fill in the rest of iocb fields */
11997 icmd
->ulpCommand
= CMD_XMIT_BLS_RSP64_CX
;
11998 icmd
->ulpBdeCount
= 0;
12000 icmd
->ulpClass
= CLASS3
;
12001 icmd
->ulpContext
= ndlp
->nlp_rpi
;
12002 ctiocb
->context1
= ndlp
;
12004 ctiocb
->iocb_cmpl
= NULL
;
12005 ctiocb
->vport
= phba
->pport
;
12006 ctiocb
->iocb_cmpl
= lpfc_sli4_seq_abort_acc_cmpl
;
12008 if (fctl
& FC_FC_EX_CTX
) {
12009 /* ABTS sent by responder to CT exchange, construction
12010 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
12011 * field and RX_ID from ABTS for RX_ID field.
12013 bf_set(lpfc_abts_orig
, &icmd
->un
.bls_acc
, LPFC_ABTS_UNSOL_RSP
);
12014 bf_set(lpfc_abts_rxid
, &icmd
->un
.bls_acc
, rxid
);
12015 ctiocb
->sli4_xritag
= oxid
;
12017 /* ABTS sent by initiator to CT exchange, construction
12018 * of BA_ACC will need to allocate a new XRI as for the
12019 * XRI_TAG and RX_ID fields.
12021 bf_set(lpfc_abts_orig
, &icmd
->un
.bls_acc
, LPFC_ABTS_UNSOL_INT
);
12022 bf_set(lpfc_abts_rxid
, &icmd
->un
.bls_acc
, NO_XRI
);
12023 ctiocb
->sli4_xritag
= NO_XRI
;
12025 bf_set(lpfc_abts_oxid
, &icmd
->un
.bls_acc
, oxid
);
12027 /* Xmit CT abts accept on exchange <xid> */
12028 lpfc_printf_log(phba
, KERN_INFO
, LOG_ELS
,
12029 "1200 Xmit CT ABTS ACC on exchange x%x Data: x%x\n",
12030 CMD_XMIT_BLS_RSP64_CX
, phba
->link_state
);
12031 lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, ctiocb
, 0);
12035 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
12036 * @vport: Pointer to the vport on which this sequence was received
12037 * @dmabuf: pointer to a dmabuf that describes the FC sequence
12039 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
12040 * receive sequence is only partially assembed by the driver, it shall abort
12041 * the partially assembled frames for the sequence. Otherwise, if the
12042 * unsolicited receive sequence has been completely assembled and passed to
12043 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
12044 * unsolicited sequence has been aborted. After that, it will issue a basic
12045 * accept to accept the abort.
12048 lpfc_sli4_handle_unsol_abort(struct lpfc_vport
*vport
,
12049 struct hbq_dmabuf
*dmabuf
)
12051 struct lpfc_hba
*phba
= vport
->phba
;
12052 struct fc_frame_header fc_hdr
;
12056 /* Make a copy of fc_hdr before the dmabuf being released */
12057 memcpy(&fc_hdr
, dmabuf
->hbuf
.virt
, sizeof(struct fc_frame_header
));
12058 fctl
= sli4_fctl_from_fc_hdr(&fc_hdr
);
12060 if (fctl
& FC_FC_EX_CTX
) {
12062 * ABTS sent by responder to exchange, just free the buffer
12064 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
12067 * ABTS sent by initiator to exchange, need to do cleanup
12069 /* Try to abort partially assembled seq */
12070 abts_par
= lpfc_sli4_abort_partial_seq(vport
, dmabuf
);
12072 /* Send abort to ULP if partially seq abort failed */
12073 if (abts_par
== false)
12074 lpfc_sli4_send_seq_to_ulp(vport
, dmabuf
);
12076 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
12078 /* Send basic accept (BA_ACC) to the abort requester */
12079 lpfc_sli4_seq_abort_acc(phba
, &fc_hdr
);
12083 * lpfc_seq_complete - Indicates if a sequence is complete
12084 * @dmabuf: pointer to a dmabuf that describes the FC sequence
12086 * This function checks the sequence, starting with the frame described by
12087 * @dmabuf, to see if all the frames associated with this sequence are present.
12088 * the frames associated with this sequence are linked to the @dmabuf using the
12089 * dbuf list. This function looks for two major things. 1) That the first frame
12090 * has a sequence count of zero. 2) There is a frame with last frame of sequence
12091 * set. 3) That there are no holes in the sequence count. The function will
12092 * return 1 when the sequence is complete, otherwise it will return 0.
12095 lpfc_seq_complete(struct hbq_dmabuf
*dmabuf
)
12097 struct fc_frame_header
*hdr
;
12098 struct lpfc_dmabuf
*d_buf
;
12099 struct hbq_dmabuf
*seq_dmabuf
;
12103 hdr
= (struct fc_frame_header
*)dmabuf
->hbuf
.virt
;
12104 /* make sure first fame of sequence has a sequence count of zero */
12105 if (hdr
->fh_seq_cnt
!= seq_count
)
12107 fctl
= (hdr
->fh_f_ctl
[0] << 16 |
12108 hdr
->fh_f_ctl
[1] << 8 |
12110 /* If last frame of sequence we can return success. */
12111 if (fctl
& FC_FC_END_SEQ
)
12113 list_for_each_entry(d_buf
, &dmabuf
->dbuf
.list
, list
) {
12114 seq_dmabuf
= container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
12115 hdr
= (struct fc_frame_header
*)seq_dmabuf
->hbuf
.virt
;
12116 /* If there is a hole in the sequence count then fail. */
12117 if (++seq_count
!= be16_to_cpu(hdr
->fh_seq_cnt
))
12119 fctl
= (hdr
->fh_f_ctl
[0] << 16 |
12120 hdr
->fh_f_ctl
[1] << 8 |
12122 /* If last frame of sequence we can return success. */
12123 if (fctl
& FC_FC_END_SEQ
)
12130 * lpfc_prep_seq - Prep sequence for ULP processing
12131 * @vport: Pointer to the vport on which this sequence was received
12132 * @dmabuf: pointer to a dmabuf that describes the FC sequence
12134 * This function takes a sequence, described by a list of frames, and creates
12135 * a list of iocbq structures to describe the sequence. This iocbq list will be
12136 * used to issue to the generic unsolicited sequence handler. This routine
12137 * returns a pointer to the first iocbq in the list. If the function is unable
12138 * to allocate an iocbq then it throw out the received frames that were not
12139 * able to be described and return a pointer to the first iocbq. If unable to
12140 * allocate any iocbqs (including the first) this function will return NULL.
12142 static struct lpfc_iocbq
*
12143 lpfc_prep_seq(struct lpfc_vport
*vport
, struct hbq_dmabuf
*seq_dmabuf
)
12145 struct lpfc_dmabuf
*d_buf
, *n_buf
;
12146 struct lpfc_iocbq
*first_iocbq
, *iocbq
;
12147 struct fc_frame_header
*fc_hdr
;
12149 struct ulp_bde64
*pbde
;
12151 fc_hdr
= (struct fc_frame_header
*)seq_dmabuf
->hbuf
.virt
;
12152 /* remove from receive buffer list */
12153 list_del_init(&seq_dmabuf
->hbuf
.list
);
12154 lpfc_update_rcv_time_stamp(vport
);
12155 /* get the Remote Port's SID */
12156 sid
= sli4_sid_from_fc_hdr(fc_hdr
);
12157 /* Get an iocbq struct to fill in. */
12158 first_iocbq
= lpfc_sli_get_iocbq(vport
->phba
);
12160 /* Initialize the first IOCB. */
12161 first_iocbq
->iocb
.unsli3
.rcvsli3
.acc_len
= 0;
12162 first_iocbq
->iocb
.ulpStatus
= IOSTAT_SUCCESS
;
12163 first_iocbq
->iocb
.ulpCommand
= CMD_IOCB_RCV_SEQ64_CX
;
12164 first_iocbq
->iocb
.ulpContext
= be16_to_cpu(fc_hdr
->fh_ox_id
);
12165 first_iocbq
->iocb
.unsli3
.rcvsli3
.vpi
=
12166 vport
->vpi
+ vport
->phba
->vpi_base
;
12167 /* put the first buffer into the first IOCBq */
12168 first_iocbq
->context2
= &seq_dmabuf
->dbuf
;
12169 first_iocbq
->context3
= NULL
;
12170 first_iocbq
->iocb
.ulpBdeCount
= 1;
12171 first_iocbq
->iocb
.un
.cont64
[0].tus
.f
.bdeSize
=
12172 LPFC_DATA_BUF_SIZE
;
12173 first_iocbq
->iocb
.un
.rcvels
.remoteID
= sid
;
12174 first_iocbq
->iocb
.unsli3
.rcvsli3
.acc_len
+=
12175 bf_get(lpfc_rcqe_length
,
12176 &seq_dmabuf
->cq_event
.cqe
.rcqe_cmpl
);
12178 iocbq
= first_iocbq
;
12180 * Each IOCBq can have two Buffers assigned, so go through the list
12181 * of buffers for this sequence and save two buffers in each IOCBq
12183 list_for_each_entry_safe(d_buf
, n_buf
, &seq_dmabuf
->dbuf
.list
, list
) {
12185 lpfc_in_buf_free(vport
->phba
, d_buf
);
12188 if (!iocbq
->context3
) {
12189 iocbq
->context3
= d_buf
;
12190 iocbq
->iocb
.ulpBdeCount
++;
12191 pbde
= (struct ulp_bde64
*)
12192 &iocbq
->iocb
.unsli3
.sli3Words
[4];
12193 pbde
->tus
.f
.bdeSize
= LPFC_DATA_BUF_SIZE
;
12194 first_iocbq
->iocb
.unsli3
.rcvsli3
.acc_len
+=
12195 bf_get(lpfc_rcqe_length
,
12196 &seq_dmabuf
->cq_event
.cqe
.rcqe_cmpl
);
12198 iocbq
= lpfc_sli_get_iocbq(vport
->phba
);
12201 first_iocbq
->iocb
.ulpStatus
=
12202 IOSTAT_FCP_RSP_ERROR
;
12203 first_iocbq
->iocb
.un
.ulpWord
[4] =
12204 IOERR_NO_RESOURCES
;
12206 lpfc_in_buf_free(vport
->phba
, d_buf
);
12209 iocbq
->context2
= d_buf
;
12210 iocbq
->context3
= NULL
;
12211 iocbq
->iocb
.ulpBdeCount
= 1;
12212 iocbq
->iocb
.un
.cont64
[0].tus
.f
.bdeSize
=
12213 LPFC_DATA_BUF_SIZE
;
12214 first_iocbq
->iocb
.unsli3
.rcvsli3
.acc_len
+=
12215 bf_get(lpfc_rcqe_length
,
12216 &seq_dmabuf
->cq_event
.cqe
.rcqe_cmpl
);
12217 iocbq
->iocb
.un
.rcvels
.remoteID
= sid
;
12218 list_add_tail(&iocbq
->list
, &first_iocbq
->list
);
12221 return first_iocbq
;
12225 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport
*vport
,
12226 struct hbq_dmabuf
*seq_dmabuf
)
12228 struct fc_frame_header
*fc_hdr
;
12229 struct lpfc_iocbq
*iocbq
, *curr_iocb
, *next_iocb
;
12230 struct lpfc_hba
*phba
= vport
->phba
;
12232 fc_hdr
= (struct fc_frame_header
*)seq_dmabuf
->hbuf
.virt
;
12233 iocbq
= lpfc_prep_seq(vport
, seq_dmabuf
);
12235 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12236 "2707 Ring %d handler: Failed to allocate "
12237 "iocb Rctl x%x Type x%x received\n",
12239 fc_hdr
->fh_r_ctl
, fc_hdr
->fh_type
);
12242 if (!lpfc_complete_unsol_iocb(phba
,
12243 &phba
->sli
.ring
[LPFC_ELS_RING
],
12244 iocbq
, fc_hdr
->fh_r_ctl
,
12246 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
12247 "2540 Ring %d handler: unexpected Rctl "
12248 "x%x Type x%x received\n",
12250 fc_hdr
->fh_r_ctl
, fc_hdr
->fh_type
);
12252 /* Free iocb created in lpfc_prep_seq */
12253 list_for_each_entry_safe(curr_iocb
, next_iocb
,
12254 &iocbq
->list
, list
) {
12255 list_del_init(&curr_iocb
->list
);
12256 lpfc_sli_release_iocbq(phba
, curr_iocb
);
12258 lpfc_sli_release_iocbq(phba
, iocbq
);
12262 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
12263 * @phba: Pointer to HBA context object.
12265 * This function is called with no lock held. This function processes all
12266 * the received buffers and gives it to upper layers when a received buffer
12267 * indicates that it is the final frame in the sequence. The interrupt
12268 * service routine processes received buffers at interrupt contexts and adds
12269 * received dma buffers to the rb_pend_list queue and signals the worker thread.
12270 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
12271 * appropriate receive function when the final frame in a sequence is received.
12274 lpfc_sli4_handle_received_buffer(struct lpfc_hba
*phba
,
12275 struct hbq_dmabuf
*dmabuf
)
12277 struct hbq_dmabuf
*seq_dmabuf
;
12278 struct fc_frame_header
*fc_hdr
;
12279 struct lpfc_vport
*vport
;
12282 /* Process each received buffer */
12283 fc_hdr
= (struct fc_frame_header
*)dmabuf
->hbuf
.virt
;
12284 /* check to see if this a valid type of frame */
12285 if (lpfc_fc_frame_check(phba
, fc_hdr
)) {
12286 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
12289 fcfi
= bf_get(lpfc_rcqe_fcf_id
, &dmabuf
->cq_event
.cqe
.rcqe_cmpl
);
12290 vport
= lpfc_fc_frame_to_vport(phba
, fc_hdr
, fcfi
);
12291 if (!vport
|| !(vport
->vpi_state
& LPFC_VPI_REGISTERED
)) {
12292 /* throw out the frame */
12293 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
12296 /* Handle the basic abort sequence (BA_ABTS) event */
12297 if (fc_hdr
->fh_r_ctl
== FC_RCTL_BA_ABTS
) {
12298 lpfc_sli4_handle_unsol_abort(vport
, dmabuf
);
12302 /* Link this frame */
12303 seq_dmabuf
= lpfc_fc_frame_add(vport
, dmabuf
);
12305 /* unable to add frame to vport - throw it out */
12306 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
12309 /* If not last frame in sequence continue processing frames. */
12310 if (!lpfc_seq_complete(seq_dmabuf
))
12313 /* Send the complete sequence to the upper layer protocol */
12314 lpfc_sli4_send_seq_to_ulp(vport
, seq_dmabuf
);
12318 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
12319 * @phba: pointer to lpfc hba data structure.
12321 * This routine is invoked to post rpi header templates to the
12322 * HBA consistent with the SLI-4 interface spec. This routine
12323 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
12324 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
12326 * This routine does not require any locks. It's usage is expected
12327 * to be driver load or reset recovery when the driver is
12332 * -EIO - The mailbox failed to complete successfully.
12333 * When this error occurs, the driver is not guaranteed
12334 * to have any rpi regions posted to the device and
12335 * must either attempt to repost the regions or take a
12339 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba
*phba
)
12341 struct lpfc_rpi_hdr
*rpi_page
;
12344 /* Post all rpi memory regions to the port. */
12345 list_for_each_entry(rpi_page
, &phba
->sli4_hba
.lpfc_rpi_hdr_list
, list
) {
12346 rc
= lpfc_sli4_post_rpi_hdr(phba
, rpi_page
);
12347 if (rc
!= MBX_SUCCESS
) {
12348 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12349 "2008 Error %d posting all rpi "
12360 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
12361 * @phba: pointer to lpfc hba data structure.
12362 * @rpi_page: pointer to the rpi memory region.
12364 * This routine is invoked to post a single rpi header to the
12365 * HBA consistent with the SLI-4 interface spec. This memory region
12366 * maps up to 64 rpi context regions.
12370 * -ENOMEM - No available memory
12371 * -EIO - The mailbox failed to complete successfully.
12374 lpfc_sli4_post_rpi_hdr(struct lpfc_hba
*phba
, struct lpfc_rpi_hdr
*rpi_page
)
12376 LPFC_MBOXQ_t
*mboxq
;
12377 struct lpfc_mbx_post_hdr_tmpl
*hdr_tmpl
;
12380 uint32_t shdr_status
, shdr_add_status
;
12381 union lpfc_sli4_cfg_shdr
*shdr
;
12383 /* The port is notified of the header region via a mailbox command. */
12384 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12386 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12387 "2001 Unable to allocate memory for issuing "
12388 "SLI_CONFIG_SPECIAL mailbox command\n");
12392 /* Post all rpi memory regions to the port. */
12393 hdr_tmpl
= &mboxq
->u
.mqe
.un
.hdr_tmpl
;
12394 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_SLI4_CONFIG
);
12395 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_FCOE
,
12396 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE
,
12397 sizeof(struct lpfc_mbx_post_hdr_tmpl
) -
12398 sizeof(struct lpfc_sli4_cfg_mhdr
),
12399 LPFC_SLI4_MBX_EMBED
);
12400 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt
,
12401 hdr_tmpl
, rpi_page
->page_count
);
12402 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset
, hdr_tmpl
,
12403 rpi_page
->start_rpi
);
12404 hdr_tmpl
->rpi_paddr_lo
= putPaddrLow(rpi_page
->dmabuf
->phys
);
12405 hdr_tmpl
->rpi_paddr_hi
= putPaddrHigh(rpi_page
->dmabuf
->phys
);
12406 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
12407 shdr
= (union lpfc_sli4_cfg_shdr
*) &hdr_tmpl
->header
.cfg_shdr
;
12408 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
12409 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
12410 if (rc
!= MBX_TIMEOUT
)
12411 mempool_free(mboxq
, phba
->mbox_mem_pool
);
12412 if (shdr_status
|| shdr_add_status
|| rc
) {
12413 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12414 "2514 POST_RPI_HDR mailbox failed with "
12415 "status x%x add_status x%x, mbx status x%x\n",
12416 shdr_status
, shdr_add_status
, rc
);
12423 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
12424 * @phba: pointer to lpfc hba data structure.
12426 * This routine is invoked to post rpi header templates to the
12427 * HBA consistent with the SLI-4 interface spec. This routine
12428 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
12429 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
12432 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
12433 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
12436 lpfc_sli4_alloc_rpi(struct lpfc_hba
*phba
)
12439 uint16_t max_rpi
, rpi_base
, rpi_limit
;
12440 uint16_t rpi_remaining
;
12441 struct lpfc_rpi_hdr
*rpi_hdr
;
12443 max_rpi
= phba
->sli4_hba
.max_cfg_param
.max_rpi
;
12444 rpi_base
= phba
->sli4_hba
.max_cfg_param
.rpi_base
;
12445 rpi_limit
= phba
->sli4_hba
.next_rpi
;
12448 * The valid rpi range is not guaranteed to be zero-based. Start
12449 * the search at the rpi_base as reported by the port.
12451 spin_lock_irq(&phba
->hbalock
);
12452 rpi
= find_next_zero_bit(phba
->sli4_hba
.rpi_bmask
, rpi_limit
, rpi_base
);
12453 if (rpi
>= rpi_limit
|| rpi
< rpi_base
)
12454 rpi
= LPFC_RPI_ALLOC_ERROR
;
12456 set_bit(rpi
, phba
->sli4_hba
.rpi_bmask
);
12457 phba
->sli4_hba
.max_cfg_param
.rpi_used
++;
12458 phba
->sli4_hba
.rpi_count
++;
12462 * Don't try to allocate more rpi header regions if the device limit
12463 * on available rpis max has been exhausted.
12465 if ((rpi
== LPFC_RPI_ALLOC_ERROR
) &&
12466 (phba
->sli4_hba
.rpi_count
>= max_rpi
)) {
12467 spin_unlock_irq(&phba
->hbalock
);
12472 * If the driver is running low on rpi resources, allocate another
12473 * page now. Note that the next_rpi value is used because
12474 * it represents how many are actually in use whereas max_rpi notes
12475 * how many are supported max by the device.
12477 rpi_remaining
= phba
->sli4_hba
.next_rpi
- rpi_base
-
12478 phba
->sli4_hba
.rpi_count
;
12479 spin_unlock_irq(&phba
->hbalock
);
12480 if (rpi_remaining
< LPFC_RPI_LOW_WATER_MARK
) {
12481 rpi_hdr
= lpfc_sli4_create_rpi_hdr(phba
);
12483 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12484 "2002 Error Could not grow rpi "
12487 lpfc_sli4_post_rpi_hdr(phba
, rpi_hdr
);
12495 * lpfc_sli4_free_rpi - Release an rpi for reuse.
12496 * @phba: pointer to lpfc hba data structure.
12498 * This routine is invoked to release an rpi to the pool of
12499 * available rpis maintained by the driver.
12502 __lpfc_sli4_free_rpi(struct lpfc_hba
*phba
, int rpi
)
12504 if (test_and_clear_bit(rpi
, phba
->sli4_hba
.rpi_bmask
)) {
12505 phba
->sli4_hba
.rpi_count
--;
12506 phba
->sli4_hba
.max_cfg_param
.rpi_used
--;
12511 * lpfc_sli4_free_rpi - Release an rpi for reuse.
12512 * @phba: pointer to lpfc hba data structure.
12514 * This routine is invoked to release an rpi to the pool of
12515 * available rpis maintained by the driver.
12518 lpfc_sli4_free_rpi(struct lpfc_hba
*phba
, int rpi
)
12520 spin_lock_irq(&phba
->hbalock
);
12521 __lpfc_sli4_free_rpi(phba
, rpi
);
12522 spin_unlock_irq(&phba
->hbalock
);
12526 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
12527 * @phba: pointer to lpfc hba data structure.
12529 * This routine is invoked to remove the memory region that
12530 * provided rpi via a bitmask.
12533 lpfc_sli4_remove_rpis(struct lpfc_hba
*phba
)
12535 kfree(phba
->sli4_hba
.rpi_bmask
);
12539 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
12540 * @phba: pointer to lpfc hba data structure.
12542 * This routine is invoked to remove the memory region that
12543 * provided rpi via a bitmask.
12546 lpfc_sli4_resume_rpi(struct lpfc_nodelist
*ndlp
)
12548 LPFC_MBOXQ_t
*mboxq
;
12549 struct lpfc_hba
*phba
= ndlp
->phba
;
12552 /* The port is notified of the header region via a mailbox command. */
12553 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12557 /* Post all rpi memory regions to the port. */
12558 lpfc_resume_rpi(mboxq
, ndlp
);
12559 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
12560 if (rc
== MBX_NOT_FINISHED
) {
12561 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12562 "2010 Resume RPI Mailbox failed "
12563 "status %d, mbxStatus x%x\n", rc
,
12564 bf_get(lpfc_mqe_status
, &mboxq
->u
.mqe
));
12565 mempool_free(mboxq
, phba
->mbox_mem_pool
);
12572 * lpfc_sli4_init_vpi - Initialize a vpi with the port
12573 * @vport: Pointer to the vport for which the vpi is being initialized
12575 * This routine is invoked to activate a vpi with the port.
12579 * -Evalue otherwise
12582 lpfc_sli4_init_vpi(struct lpfc_vport
*vport
)
12584 LPFC_MBOXQ_t
*mboxq
;
12586 int retval
= MBX_SUCCESS
;
12588 struct lpfc_hba
*phba
= vport
->phba
;
12589 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12592 lpfc_init_vpi(phba
, mboxq
, vport
->vpi
);
12593 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_INIT_VPI
);
12594 rc
= lpfc_sli_issue_mbox_wait(phba
, mboxq
, mbox_tmo
);
12595 if (rc
!= MBX_SUCCESS
) {
12596 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_SLI
,
12597 "2022 INIT VPI Mailbox failed "
12598 "status %d, mbxStatus x%x\n", rc
,
12599 bf_get(lpfc_mqe_status
, &mboxq
->u
.mqe
));
12602 if (rc
!= MBX_TIMEOUT
)
12603 mempool_free(mboxq
, vport
->phba
->mbox_mem_pool
);
12609 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
12610 * @phba: pointer to lpfc hba data structure.
12611 * @mboxq: Pointer to mailbox object.
12613 * This routine is invoked to manually add a single FCF record. The caller
12614 * must pass a completely initialized FCF_Record. This routine takes
12615 * care of the nonembedded mailbox operations.
12618 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
12621 union lpfc_sli4_cfg_shdr
*shdr
;
12622 uint32_t shdr_status
, shdr_add_status
;
12624 virt_addr
= mboxq
->sge_array
->addr
[0];
12625 /* The IOCTL status is embedded in the mailbox subheader. */
12626 shdr
= (union lpfc_sli4_cfg_shdr
*) virt_addr
;
12627 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
12628 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
12630 if ((shdr_status
|| shdr_add_status
) &&
12631 (shdr_status
!= STATUS_FCF_IN_USE
))
12632 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12633 "2558 ADD_FCF_RECORD mailbox failed with "
12634 "status x%x add_status x%x\n",
12635 shdr_status
, shdr_add_status
);
12637 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
12641 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
12642 * @phba: pointer to lpfc hba data structure.
12643 * @fcf_record: pointer to the initialized fcf record to add.
12645 * This routine is invoked to manually add a single FCF record. The caller
12646 * must pass a completely initialized FCF_Record. This routine takes
12647 * care of the nonembedded mailbox operations.
12650 lpfc_sli4_add_fcf_record(struct lpfc_hba
*phba
, struct fcf_record
*fcf_record
)
12653 LPFC_MBOXQ_t
*mboxq
;
12656 dma_addr_t phys_addr
;
12657 struct lpfc_mbx_sge sge
;
12658 uint32_t alloc_len
, req_len
;
12661 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12663 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12664 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
12668 req_len
= sizeof(struct fcf_record
) + sizeof(union lpfc_sli4_cfg_shdr
) +
12671 /* Allocate DMA memory and set up the non-embedded mailbox command */
12672 alloc_len
= lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_FCOE
,
12673 LPFC_MBOX_OPCODE_FCOE_ADD_FCF
,
12674 req_len
, LPFC_SLI4_MBX_NEMBED
);
12675 if (alloc_len
< req_len
) {
12676 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12677 "2523 Allocated DMA memory size (x%x) is "
12678 "less than the requested DMA memory "
12679 "size (x%x)\n", alloc_len
, req_len
);
12680 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
12685 * Get the first SGE entry from the non-embedded DMA memory. This
12686 * routine only uses a single SGE.
12688 lpfc_sli4_mbx_sge_get(mboxq
, 0, &sge
);
12689 phys_addr
= getPaddr(sge
.pa_hi
, sge
.pa_lo
);
12690 virt_addr
= mboxq
->sge_array
->addr
[0];
12692 * Configure the FCF record for FCFI 0. This is the driver's
12693 * hardcoded default and gets used in nonFIP mode.
12695 fcfindex
= bf_get(lpfc_fcf_record_fcf_index
, fcf_record
);
12696 bytep
= virt_addr
+ sizeof(union lpfc_sli4_cfg_shdr
);
12697 lpfc_sli_pcimem_bcopy(&fcfindex
, bytep
, sizeof(uint32_t));
12700 * Copy the fcf_index and the FCF Record Data. The data starts after
12701 * the FCoE header plus word10. The data copy needs to be endian
12704 bytep
+= sizeof(uint32_t);
12705 lpfc_sli_pcimem_bcopy(fcf_record
, bytep
, sizeof(struct fcf_record
));
12706 mboxq
->vport
= phba
->pport
;
12707 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_add_fcf_record
;
12708 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
12709 if (rc
== MBX_NOT_FINISHED
) {
12710 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12711 "2515 ADD_FCF_RECORD mailbox failed with "
12712 "status 0x%x\n", rc
);
12713 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
12722 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
12723 * @phba: pointer to lpfc hba data structure.
12724 * @fcf_record: pointer to the fcf record to write the default data.
12725 * @fcf_index: FCF table entry index.
12727 * This routine is invoked to build the driver's default FCF record. The
12728 * values used are hardcoded. This routine handles memory initialization.
12732 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba
*phba
,
12733 struct fcf_record
*fcf_record
,
12734 uint16_t fcf_index
)
12736 memset(fcf_record
, 0, sizeof(struct fcf_record
));
12737 fcf_record
->max_rcv_size
= LPFC_FCOE_MAX_RCV_SIZE
;
12738 fcf_record
->fka_adv_period
= LPFC_FCOE_FKA_ADV_PER
;
12739 fcf_record
->fip_priority
= LPFC_FCOE_FIP_PRIORITY
;
12740 bf_set(lpfc_fcf_record_mac_0
, fcf_record
, phba
->fc_map
[0]);
12741 bf_set(lpfc_fcf_record_mac_1
, fcf_record
, phba
->fc_map
[1]);
12742 bf_set(lpfc_fcf_record_mac_2
, fcf_record
, phba
->fc_map
[2]);
12743 bf_set(lpfc_fcf_record_mac_3
, fcf_record
, LPFC_FCOE_FCF_MAC3
);
12744 bf_set(lpfc_fcf_record_mac_4
, fcf_record
, LPFC_FCOE_FCF_MAC4
);
12745 bf_set(lpfc_fcf_record_mac_5
, fcf_record
, LPFC_FCOE_FCF_MAC5
);
12746 bf_set(lpfc_fcf_record_fc_map_0
, fcf_record
, phba
->fc_map
[0]);
12747 bf_set(lpfc_fcf_record_fc_map_1
, fcf_record
, phba
->fc_map
[1]);
12748 bf_set(lpfc_fcf_record_fc_map_2
, fcf_record
, phba
->fc_map
[2]);
12749 bf_set(lpfc_fcf_record_fcf_valid
, fcf_record
, 1);
12750 bf_set(lpfc_fcf_record_fcf_avail
, fcf_record
, 1);
12751 bf_set(lpfc_fcf_record_fcf_index
, fcf_record
, fcf_index
);
12752 bf_set(lpfc_fcf_record_mac_addr_prov
, fcf_record
,
12753 LPFC_FCF_FPMA
| LPFC_FCF_SPMA
);
12754 /* Set the VLAN bit map */
12755 if (phba
->valid_vlan
) {
12756 fcf_record
->vlan_bitmap
[phba
->vlan_id
/ 8]
12757 = 1 << (phba
->vlan_id
% 8);
12762 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
12763 * @phba: pointer to lpfc hba data structure.
12764 * @fcf_index: FCF table entry offset.
12766 * This routine is invoked to scan the entire FCF table by reading FCF
12767 * record and processing it one at a time starting from the @fcf_index
12768 * for initial FCF discovery or fast FCF failover rediscovery.
12770 * Return 0 if the mailbox command is submitted sucessfully, none 0
12774 lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba
*phba
, uint16_t fcf_index
)
12777 LPFC_MBOXQ_t
*mboxq
;
12779 phba
->fcoe_eventtag_at_fcf_scan
= phba
->fcoe_eventtag
;
12780 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12782 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12783 "2000 Failed to allocate mbox for "
12786 goto fail_fcf_scan
;
12788 /* Construct the read FCF record mailbox command */
12789 rc
= lpfc_sli4_mbx_read_fcf_rec(phba
, mboxq
, fcf_index
);
12792 goto fail_fcf_scan
;
12794 /* Issue the mailbox command asynchronously */
12795 mboxq
->vport
= phba
->pport
;
12796 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_fcf_scan_read_fcf_rec
;
12798 spin_lock_irq(&phba
->hbalock
);
12799 phba
->hba_flag
|= FCF_TS_INPROG
;
12800 spin_unlock_irq(&phba
->hbalock
);
12802 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
12803 if (rc
== MBX_NOT_FINISHED
)
12806 /* Reset eligible FCF count for new scan */
12807 if (fcf_index
== LPFC_FCOE_FCF_GET_FIRST
)
12808 phba
->fcf
.eligible_fcf_cnt
= 0;
12814 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
12815 /* FCF scan failed, clear FCF_TS_INPROG flag */
12816 spin_lock_irq(&phba
->hbalock
);
12817 phba
->hba_flag
&= ~FCF_TS_INPROG
;
12818 spin_unlock_irq(&phba
->hbalock
);
12824 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
12825 * @phba: pointer to lpfc hba data structure.
12826 * @fcf_index: FCF table entry offset.
12828 * This routine is invoked to read an FCF record indicated by @fcf_index
12829 * and to use it for FLOGI roundrobin FCF failover.
12831 * Return 0 if the mailbox command is submitted sucessfully, none 0
12835 lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba
*phba
, uint16_t fcf_index
)
12838 LPFC_MBOXQ_t
*mboxq
;
12840 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12842 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_INIT
,
12843 "2763 Failed to allocate mbox for "
12846 goto fail_fcf_read
;
12848 /* Construct the read FCF record mailbox command */
12849 rc
= lpfc_sli4_mbx_read_fcf_rec(phba
, mboxq
, fcf_index
);
12852 goto fail_fcf_read
;
12854 /* Issue the mailbox command asynchronously */
12855 mboxq
->vport
= phba
->pport
;
12856 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_fcf_rr_read_fcf_rec
;
12857 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
12858 if (rc
== MBX_NOT_FINISHED
)
12864 if (error
&& mboxq
)
12865 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
12870 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
12871 * @phba: pointer to lpfc hba data structure.
12872 * @fcf_index: FCF table entry offset.
12874 * This routine is invoked to read an FCF record indicated by @fcf_index to
12875 * determine whether it's eligible for FLOGI roundrobin failover list.
12877 * Return 0 if the mailbox command is submitted sucessfully, none 0
12881 lpfc_sli4_read_fcf_rec(struct lpfc_hba
*phba
, uint16_t fcf_index
)
12884 LPFC_MBOXQ_t
*mboxq
;
12886 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12888 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_INIT
,
12889 "2758 Failed to allocate mbox for "
12892 goto fail_fcf_read
;
12894 /* Construct the read FCF record mailbox command */
12895 rc
= lpfc_sli4_mbx_read_fcf_rec(phba
, mboxq
, fcf_index
);
12898 goto fail_fcf_read
;
12900 /* Issue the mailbox command asynchronously */
12901 mboxq
->vport
= phba
->pport
;
12902 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_read_fcf_rec
;
12903 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
12904 if (rc
== MBX_NOT_FINISHED
)
12910 if (error
&& mboxq
)
12911 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
12916 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
12917 * @phba: pointer to lpfc hba data structure.
12919 * This routine is to get the next eligible FCF record index in a round
12920 * robin fashion. If the next eligible FCF record index equals to the
12921 * initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
12922 * shall be returned, otherwise, the next eligible FCF record's index
12923 * shall be returned.
12926 lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba
*phba
)
12928 uint16_t next_fcf_index
;
12930 /* Search start from next bit of currently registered FCF index */
12931 next_fcf_index
= (phba
->fcf
.current_rec
.fcf_indx
+ 1) %
12932 LPFC_SLI4_FCF_TBL_INDX_MAX
;
12933 next_fcf_index
= find_next_bit(phba
->fcf
.fcf_rr_bmask
,
12934 LPFC_SLI4_FCF_TBL_INDX_MAX
,
12937 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
12938 if (next_fcf_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
)
12939 next_fcf_index
= find_next_bit(phba
->fcf
.fcf_rr_bmask
,
12940 LPFC_SLI4_FCF_TBL_INDX_MAX
, 0);
12942 /* Check roundrobin failover list empty condition */
12943 if (next_fcf_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
) {
12944 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
,
12945 "2844 No roundrobin failover FCF available\n");
12946 return LPFC_FCOE_FCF_NEXT_NONE
;
12949 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
12950 "2845 Get next roundrobin failover FCF (x%x)\n",
12953 return next_fcf_index
;
12957 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
12958 * @phba: pointer to lpfc hba data structure.
12960 * This routine sets the FCF record index in to the eligible bmask for
12961 * roundrobin failover search. It checks to make sure that the index
12962 * does not go beyond the range of the driver allocated bmask dimension
12963 * before setting the bit.
12965 * Returns 0 if the index bit successfully set, otherwise, it returns
12969 lpfc_sli4_fcf_rr_index_set(struct lpfc_hba
*phba
, uint16_t fcf_index
)
12971 if (fcf_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
) {
12972 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
12973 "2610 FCF (x%x) reached driver's book "
12974 "keeping dimension:x%x\n",
12975 fcf_index
, LPFC_SLI4_FCF_TBL_INDX_MAX
);
12978 /* Set the eligible FCF record index bmask */
12979 set_bit(fcf_index
, phba
->fcf
.fcf_rr_bmask
);
12981 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
12982 "2790 Set FCF (x%x) to roundrobin FCF failover "
12983 "bmask\n", fcf_index
);
12989 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
12990 * @phba: pointer to lpfc hba data structure.
12992 * This routine clears the FCF record index from the eligible bmask for
12993 * roundrobin failover search. It checks to make sure that the index
12994 * does not go beyond the range of the driver allocated bmask dimension
12995 * before clearing the bit.
12998 lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba
*phba
, uint16_t fcf_index
)
13000 if (fcf_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
) {
13001 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
13002 "2762 FCF (x%x) reached driver's book "
13003 "keeping dimension:x%x\n",
13004 fcf_index
, LPFC_SLI4_FCF_TBL_INDX_MAX
);
13007 /* Clear the eligible FCF record index bmask */
13008 clear_bit(fcf_index
, phba
->fcf
.fcf_rr_bmask
);
13010 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
13011 "2791 Clear FCF (x%x) from roundrobin failover "
13012 "bmask\n", fcf_index
);
13016 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
13017 * @phba: pointer to lpfc hba data structure.
13019 * This routine is the completion routine for the rediscover FCF table mailbox
13020 * command. If the mailbox command returned failure, it will try to stop the
13021 * FCF rediscover wait timer.
13024 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mbox
)
13026 struct lpfc_mbx_redisc_fcf_tbl
*redisc_fcf
;
13027 uint32_t shdr_status
, shdr_add_status
;
13029 redisc_fcf
= &mbox
->u
.mqe
.un
.redisc_fcf_tbl
;
13031 shdr_status
= bf_get(lpfc_mbox_hdr_status
,
13032 &redisc_fcf
->header
.cfg_shdr
.response
);
13033 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
,
13034 &redisc_fcf
->header
.cfg_shdr
.response
);
13035 if (shdr_status
|| shdr_add_status
) {
13036 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
13037 "2746 Requesting for FCF rediscovery failed "
13038 "status x%x add_status x%x\n",
13039 shdr_status
, shdr_add_status
);
13040 if (phba
->fcf
.fcf_flag
& FCF_ACVL_DISC
) {
13041 spin_lock_irq(&phba
->hbalock
);
13042 phba
->fcf
.fcf_flag
&= ~FCF_ACVL_DISC
;
13043 spin_unlock_irq(&phba
->hbalock
);
13045 * CVL event triggered FCF rediscover request failed,
13046 * last resort to re-try current registered FCF entry.
13048 lpfc_retry_pport_discovery(phba
);
13050 spin_lock_irq(&phba
->hbalock
);
13051 phba
->fcf
.fcf_flag
&= ~FCF_DEAD_DISC
;
13052 spin_unlock_irq(&phba
->hbalock
);
13054 * DEAD FCF event triggered FCF rediscover request
13055 * failed, last resort to fail over as a link down
13056 * to FCF registration.
13058 lpfc_sli4_fcf_dead_failthrough(phba
);
13061 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
13062 "2775 Start FCF rediscover quiescent timer\n");
13064 * Start FCF rediscovery wait timer for pending FCF
13065 * before rescan FCF record table.
13067 lpfc_fcf_redisc_wait_start_timer(phba
);
13070 mempool_free(mbox
, phba
->mbox_mem_pool
);
13074 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
13075 * @phba: pointer to lpfc hba data structure.
13077 * This routine is invoked to request for rediscovery of the entire FCF table
13081 lpfc_sli4_redisc_fcf_table(struct lpfc_hba
*phba
)
13083 LPFC_MBOXQ_t
*mbox
;
13084 struct lpfc_mbx_redisc_fcf_tbl
*redisc_fcf
;
13087 /* Cancel retry delay timers to all vports before FCF rediscover */
13088 lpfc_cancel_all_vport_retry_delay_timer(phba
);
13090 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
13092 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
13093 "2745 Failed to allocate mbox for "
13094 "requesting FCF rediscover.\n");
13098 length
= (sizeof(struct lpfc_mbx_redisc_fcf_tbl
) -
13099 sizeof(struct lpfc_sli4_cfg_mhdr
));
13100 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
13101 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF
,
13102 length
, LPFC_SLI4_MBX_EMBED
);
13104 redisc_fcf
= &mbox
->u
.mqe
.un
.redisc_fcf_tbl
;
13105 /* Set count to 0 for invalidating the entire FCF database */
13106 bf_set(lpfc_mbx_redisc_fcf_count
, redisc_fcf
, 0);
13108 /* Issue the mailbox command asynchronously */
13109 mbox
->vport
= phba
->pport
;
13110 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_redisc_fcf_table
;
13111 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
13113 if (rc
== MBX_NOT_FINISHED
) {
13114 mempool_free(mbox
, phba
->mbox_mem_pool
);
13121 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
13122 * @phba: pointer to lpfc hba data structure.
13124 * This function is the failover routine as a last resort to the FCF DEAD
13125 * event when driver failed to perform fast FCF failover.
13128 lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba
*phba
)
13130 uint32_t link_state
;
13133 * Last resort as FCF DEAD event failover will treat this as
13134 * a link down, but save the link state because we don't want
13135 * it to be changed to Link Down unless it is already down.
13137 link_state
= phba
->link_state
;
13138 lpfc_linkdown(phba
);
13139 phba
->link_state
= link_state
;
13141 /* Unregister FCF if no devices connected to it */
13142 lpfc_unregister_unused_fcf(phba
);
13146 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
13147 * @phba: pointer to lpfc hba data structure.
13149 * This function read region 23 and parse TLV for port status to
13150 * decide if the user disaled the port. If the TLV indicates the
13151 * port is disabled, the hba_flag is set accordingly.
13154 lpfc_sli_read_link_ste(struct lpfc_hba
*phba
)
13156 LPFC_MBOXQ_t
*pmb
= NULL
;
13158 uint8_t *rgn23_data
= NULL
;
13159 uint32_t offset
= 0, data_size
, sub_tlv_len
, tlv_offset
;
13162 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
13164 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13165 "2600 lpfc_sli_read_serdes_param failed to"
13166 " allocate mailbox memory\n");
13171 /* Get adapter Region 23 data */
13172 rgn23_data
= kzalloc(DMP_RGN23_SIZE
, GFP_KERNEL
);
13177 lpfc_dump_mem(phba
, pmb
, offset
, DMP_REGION_23
);
13178 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
13180 if (rc
!= MBX_SUCCESS
) {
13181 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
13182 "2601 lpfc_sli_read_link_ste failed to"
13183 " read config region 23 rc 0x%x Status 0x%x\n",
13184 rc
, mb
->mbxStatus
);
13185 mb
->un
.varDmp
.word_cnt
= 0;
13188 * dump mem may return a zero when finished or we got a
13189 * mailbox error, either way we are done.
13191 if (mb
->un
.varDmp
.word_cnt
== 0)
13193 if (mb
->un
.varDmp
.word_cnt
> DMP_RGN23_SIZE
- offset
)
13194 mb
->un
.varDmp
.word_cnt
= DMP_RGN23_SIZE
- offset
;
13196 lpfc_sli_pcimem_bcopy(((uint8_t *)mb
) + DMP_RSP_OFFSET
,
13197 rgn23_data
+ offset
,
13198 mb
->un
.varDmp
.word_cnt
);
13199 offset
+= mb
->un
.varDmp
.word_cnt
;
13200 } while (mb
->un
.varDmp
.word_cnt
&& offset
< DMP_RGN23_SIZE
);
13202 data_size
= offset
;
13208 /* Check the region signature first */
13209 if (memcmp(&rgn23_data
[offset
], LPFC_REGION23_SIGNATURE
, 4)) {
13210 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13211 "2619 Config region 23 has bad signature\n");
13216 /* Check the data structure version */
13217 if (rgn23_data
[offset
] != LPFC_REGION23_VERSION
) {
13218 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13219 "2620 Config region 23 has bad version\n");
13224 /* Parse TLV entries in the region */
13225 while (offset
< data_size
) {
13226 if (rgn23_data
[offset
] == LPFC_REGION23_LAST_REC
)
13229 * If the TLV is not driver specific TLV or driver id is
13230 * not linux driver id, skip the record.
13232 if ((rgn23_data
[offset
] != DRIVER_SPECIFIC_TYPE
) ||
13233 (rgn23_data
[offset
+ 2] != LINUX_DRIVER_ID
) ||
13234 (rgn23_data
[offset
+ 3] != 0)) {
13235 offset
+= rgn23_data
[offset
+ 1] * 4 + 4;
13239 /* Driver found a driver specific TLV in the config region */
13240 sub_tlv_len
= rgn23_data
[offset
+ 1] * 4;
13245 * Search for configured port state sub-TLV.
13247 while ((offset
< data_size
) &&
13248 (tlv_offset
< sub_tlv_len
)) {
13249 if (rgn23_data
[offset
] == LPFC_REGION23_LAST_REC
) {
13254 if (rgn23_data
[offset
] != PORT_STE_TYPE
) {
13255 offset
+= rgn23_data
[offset
+ 1] * 4 + 4;
13256 tlv_offset
+= rgn23_data
[offset
+ 1] * 4 + 4;
13260 /* This HBA contains PORT_STE configured */
13261 if (!rgn23_data
[offset
+ 2])
13262 phba
->hba_flag
|= LINK_DISABLED
;
13269 mempool_free(pmb
, phba
->mbox_mem_pool
);
13275 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
13276 * @vport: pointer to vport data structure.
13278 * This function iterate through the mailboxq and clean up all REG_LOGIN
13279 * and REG_VPI mailbox commands associated with the vport. This function
13280 * is called when driver want to restart discovery of the vport due to
13281 * a Clear Virtual Link event.
13284 lpfc_cleanup_pending_mbox(struct lpfc_vport
*vport
)
13286 struct lpfc_hba
*phba
= vport
->phba
;
13287 LPFC_MBOXQ_t
*mb
, *nextmb
;
13288 struct lpfc_dmabuf
*mp
;
13289 struct lpfc_nodelist
*ndlp
;
13290 struct lpfc_nodelist
*act_mbx_ndlp
= NULL
;
13291 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
13292 LIST_HEAD(mbox_cmd_list
);
13293 uint8_t restart_loop
;
13295 /* Clean up internally queued mailbox commands with the vport */
13296 spin_lock_irq(&phba
->hbalock
);
13297 list_for_each_entry_safe(mb
, nextmb
, &phba
->sli
.mboxq
, list
) {
13298 if (mb
->vport
!= vport
)
13301 if ((mb
->u
.mb
.mbxCommand
!= MBX_REG_LOGIN64
) &&
13302 (mb
->u
.mb
.mbxCommand
!= MBX_REG_VPI
))
13305 list_del(&mb
->list
);
13306 list_add_tail(&mb
->list
, &mbox_cmd_list
);
13308 /* Clean up active mailbox command with the vport */
13309 mb
= phba
->sli
.mbox_active
;
13310 if (mb
&& (mb
->vport
== vport
)) {
13311 if ((mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) ||
13312 (mb
->u
.mb
.mbxCommand
== MBX_REG_VPI
))
13313 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
13314 if (mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) {
13315 act_mbx_ndlp
= (struct lpfc_nodelist
*)mb
->context2
;
13316 /* Put reference count for delayed processing */
13317 act_mbx_ndlp
= lpfc_nlp_get(act_mbx_ndlp
);
13318 /* Unregister the RPI when mailbox complete */
13319 mb
->mbox_flag
|= LPFC_MBX_IMED_UNREG
;
13322 /* Cleanup any mailbox completions which are not yet processed */
13325 list_for_each_entry(mb
, &phba
->sli
.mboxq_cmpl
, list
) {
13327 * If this mailox is already processed or it is
13328 * for another vport ignore it.
13330 if ((mb
->vport
!= vport
) ||
13331 (mb
->mbox_flag
& LPFC_MBX_IMED_UNREG
))
13334 if ((mb
->u
.mb
.mbxCommand
!= MBX_REG_LOGIN64
) &&
13335 (mb
->u
.mb
.mbxCommand
!= MBX_REG_VPI
))
13338 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
13339 if (mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) {
13340 ndlp
= (struct lpfc_nodelist
*)mb
->context2
;
13341 /* Unregister the RPI when mailbox complete */
13342 mb
->mbox_flag
|= LPFC_MBX_IMED_UNREG
;
13344 spin_unlock_irq(&phba
->hbalock
);
13345 spin_lock(shost
->host_lock
);
13346 ndlp
->nlp_flag
&= ~NLP_IGNR_REG_CMPL
;
13347 spin_unlock(shost
->host_lock
);
13348 spin_lock_irq(&phba
->hbalock
);
13352 } while (restart_loop
);
13354 spin_unlock_irq(&phba
->hbalock
);
13356 /* Release the cleaned-up mailbox commands */
13357 while (!list_empty(&mbox_cmd_list
)) {
13358 list_remove_head(&mbox_cmd_list
, mb
, LPFC_MBOXQ_t
, list
);
13359 if (mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) {
13360 mp
= (struct lpfc_dmabuf
*) (mb
->context1
);
13362 __lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
13365 ndlp
= (struct lpfc_nodelist
*) mb
->context2
;
13366 mb
->context2
= NULL
;
13368 spin_lock(shost
->host_lock
);
13369 ndlp
->nlp_flag
&= ~NLP_IGNR_REG_CMPL
;
13370 spin_unlock(shost
->host_lock
);
13371 lpfc_nlp_put(ndlp
);
13374 mempool_free(mb
, phba
->mbox_mem_pool
);
13377 /* Release the ndlp with the cleaned-up active mailbox command */
13378 if (act_mbx_ndlp
) {
13379 spin_lock(shost
->host_lock
);
13380 act_mbx_ndlp
->nlp_flag
&= ~NLP_IGNR_REG_CMPL
;
13381 spin_unlock(shost
->host_lock
);
13382 lpfc_nlp_put(act_mbx_ndlp
);
13387 * lpfc_drain_txq - Drain the txq
13388 * @phba: Pointer to HBA context object.
13390 * This function attempt to submit IOCBs on the txq
13391 * to the adapter. For SLI4 adapters, the txq contains
13392 * ELS IOCBs that have been deferred because the there
13393 * are no SGLs. This congestion can occur with large
13394 * vport counts during node discovery.
13398 lpfc_drain_txq(struct lpfc_hba
*phba
)
13400 LIST_HEAD(completions
);
13401 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
13402 struct lpfc_iocbq
*piocbq
= 0;
13403 unsigned long iflags
= 0;
13404 char *fail_msg
= NULL
;
13405 struct lpfc_sglq
*sglq
;
13406 union lpfc_wqe wqe
;
13408 spin_lock_irqsave(&phba
->hbalock
, iflags
);
13409 if (pring
->txq_cnt
> pring
->txq_max
)
13410 pring
->txq_max
= pring
->txq_cnt
;
13412 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
13414 while (pring
->txq_cnt
) {
13415 spin_lock_irqsave(&phba
->hbalock
, iflags
);
13417 piocbq
= lpfc_sli_ringtx_get(phba
, pring
);
13418 sglq
= __lpfc_sli_get_sglq(phba
, piocbq
);
13420 __lpfc_sli_ringtx_put(phba
, pring
, piocbq
);
13421 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
13425 /* The txq_cnt out of sync. This should
13428 sglq
= __lpfc_clear_active_sglq(phba
,
13429 sglq
->sli4_xritag
);
13430 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
13431 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
13432 "2823 txq empty and txq_cnt is %d\n ",
13438 /* The xri and iocb resources secured,
13439 * attempt to issue request
13441 piocbq
->sli4_xritag
= sglq
->sli4_xritag
;
13442 if (NO_XRI
== lpfc_sli4_bpl2sgl(phba
, piocbq
, sglq
))
13443 fail_msg
= "to convert bpl to sgl";
13444 else if (lpfc_sli4_iocb2wqe(phba
, piocbq
, &wqe
))
13445 fail_msg
= "to convert iocb to wqe";
13446 else if (lpfc_sli4_wq_put(phba
->sli4_hba
.els_wq
, &wqe
))
13447 fail_msg
= " - Wq is full";
13449 lpfc_sli_ringtxcmpl_put(phba
, pring
, piocbq
);
13452 /* Failed means we can't issue and need to cancel */
13453 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
13454 "2822 IOCB failed %s iotag 0x%x "
13457 piocbq
->iotag
, piocbq
->sli4_xritag
);
13458 list_add_tail(&piocbq
->list
, &completions
);
13460 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
13463 /* Cancel all the IOCBs that cannot be issued */
13464 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
13465 IOERR_SLI_ABORTED
);
13467 return pring
->txq_cnt
;