1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2011 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 *,
68 static int lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *, struct lpfc_queue *,
72 lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq)
78 * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
79 * @q: The Work Queue to operate on.
80 * @wqe: The work Queue Entry to put on the Work queue.
82 * This routine will copy the contents of @wqe to the next available entry on
83 * the @q. This function will then ring the Work Queue Doorbell to signal the
84 * HBA to start processing the Work Queue Entry. This function returns 0 if
85 * successful. If no entries are available on @q then this function will return
87 * The caller is expected to hold the hbalock when calling this routine.
90 lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe)
92 union lpfc_wqe *temp_wqe;
93 struct lpfc_register doorbell;
96 /* sanity check on queue memory */
99 temp_wqe = q->qe[q->host_index].wqe;
101 /* If the host has not yet processed the next entry then we are done */
102 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
104 /* set consumption flag every once in a while */
105 if (!((q->host_index + 1) % q->entry_repost))
106 bf_set(wqe_wqec, &wqe->generic.wqe_com, 1);
107 if (q->phba->sli3_options & LPFC_SLI4_PHWQ_ENABLED)
108 bf_set(wqe_wqid, &wqe->generic.wqe_com, q->queue_id);
109 lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size);
111 /* Update the host index before invoking device */
112 host_index = q->host_index;
113 q->host_index = ((q->host_index + 1) % q->entry_count);
117 bf_set(lpfc_wq_doorbell_num_posted, &doorbell, 1);
118 bf_set(lpfc_wq_doorbell_index, &doorbell, host_index);
119 bf_set(lpfc_wq_doorbell_id, &doorbell, q->queue_id);
120 writel(doorbell.word0, q->phba->sli4_hba.WQDBregaddr);
121 readl(q->phba->sli4_hba.WQDBregaddr); /* Flush */
127 * lpfc_sli4_wq_release - Updates internal hba index for WQ
128 * @q: The Work Queue to operate on.
129 * @index: The index to advance the hba index to.
131 * This routine will update the HBA index of a queue to reflect consumption of
132 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
133 * an entry the host calls this function to update the queue's internal
134 * pointers. This routine returns the number of entries that were consumed by
138 lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index)
140 uint32_t released = 0;
142 /* sanity check on queue memory */
146 if (q->hba_index == index)
149 q->hba_index = ((q->hba_index + 1) % q->entry_count);
151 } while (q->hba_index != index);
156 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
157 * @q: The Mailbox Queue to operate on.
158 * @wqe: The Mailbox Queue Entry to put on the Work queue.
160 * This routine will copy the contents of @mqe to the next available entry on
161 * the @q. This function will then ring the Work Queue Doorbell to signal the
162 * HBA to start processing the Work Queue Entry. This function returns 0 if
163 * successful. If no entries are available on @q then this function will return
165 * The caller is expected to hold the hbalock when calling this routine.
168 lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
170 struct lpfc_mqe *temp_mqe;
171 struct lpfc_register doorbell;
174 /* sanity check on queue memory */
177 temp_mqe = q->qe[q->host_index].mqe;
179 /* If the host has not yet processed the next entry then we are done */
180 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
182 lpfc_sli_pcimem_bcopy(mqe, temp_mqe, q->entry_size);
183 /* Save off the mailbox pointer for completion */
184 q->phba->mbox = (MAILBOX_t *)temp_mqe;
186 /* Update the host index before invoking device */
187 host_index = q->host_index;
188 q->host_index = ((q->host_index + 1) % q->entry_count);
192 bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1);
193 bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id);
194 writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr);
195 readl(q->phba->sli4_hba.MQDBregaddr); /* Flush */
200 * lpfc_sli4_mq_release - Updates internal hba index for MQ
201 * @q: The Mailbox Queue to operate on.
203 * This routine will update the HBA index of a queue to reflect consumption of
204 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
205 * an entry the host calls this function to update the queue's internal
206 * pointers. This routine returns the number of entries that were consumed by
210 lpfc_sli4_mq_release(struct lpfc_queue *q)
212 /* sanity check on queue memory */
216 /* Clear the mailbox pointer for completion */
217 q->phba->mbox = NULL;
218 q->hba_index = ((q->hba_index + 1) % q->entry_count);
223 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
224 * @q: The Event Queue to get the first valid EQE from
226 * This routine will get the first valid Event Queue Entry from @q, update
227 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
228 * the Queue (no more work to do), or the Queue is full of EQEs that have been
229 * processed, but not popped back to the HBA then this routine will return NULL.
231 static struct lpfc_eqe *
232 lpfc_sli4_eq_get(struct lpfc_queue *q)
234 struct lpfc_eqe *eqe;
236 /* sanity check on queue memory */
239 eqe = q->qe[q->hba_index].eqe;
241 /* If the next EQE is not valid then we are done */
242 if (!bf_get_le32(lpfc_eqe_valid, eqe))
244 /* If the host has not yet processed the next entry then we are done */
245 if (((q->hba_index + 1) % q->entry_count) == q->host_index)
248 q->hba_index = ((q->hba_index + 1) % q->entry_count);
253 * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
254 * @q: The Event Queue that the host has completed processing for.
255 * @arm: Indicates whether the host wants to arms this CQ.
257 * This routine will mark all Event Queue Entries on @q, from the last
258 * known completed entry to the last entry that was processed, as completed
259 * by clearing the valid bit for each completion queue entry. Then it will
260 * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
261 * The internal host index in the @q will be updated by this routine to indicate
262 * that the host has finished processing the entries. The @arm parameter
263 * indicates that the queue should be rearmed when ringing the doorbell.
265 * This function will return the number of EQEs that were popped.
268 lpfc_sli4_eq_release(struct lpfc_queue *q, bool arm)
270 uint32_t released = 0;
271 struct lpfc_eqe *temp_eqe;
272 struct lpfc_register doorbell;
274 /* sanity check on queue memory */
278 /* while there are valid entries */
279 while (q->hba_index != q->host_index) {
280 temp_eqe = q->qe[q->host_index].eqe;
281 bf_set_le32(lpfc_eqe_valid, temp_eqe, 0);
283 q->host_index = ((q->host_index + 1) % q->entry_count);
285 if (unlikely(released == 0 && !arm))
288 /* ring doorbell for number popped */
291 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
292 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
294 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
295 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
296 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
297 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
298 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
299 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
300 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
301 if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
302 readl(q->phba->sli4_hba.EQCQDBregaddr);
307 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
308 * @q: The Completion Queue to get the first valid CQE from
310 * This routine will get the first valid Completion Queue Entry from @q, update
311 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
312 * the Queue (no more work to do), or the Queue is full of CQEs that have been
313 * processed, but not popped back to the HBA then this routine will return NULL.
315 static struct lpfc_cqe *
316 lpfc_sli4_cq_get(struct lpfc_queue *q)
318 struct lpfc_cqe *cqe;
320 /* sanity check on queue memory */
324 /* If the next CQE is not valid then we are done */
325 if (!bf_get_le32(lpfc_cqe_valid, q->qe[q->hba_index].cqe))
327 /* If the host has not yet processed the next entry then we are done */
328 if (((q->hba_index + 1) % q->entry_count) == q->host_index)
331 cqe = q->qe[q->hba_index].cqe;
332 q->hba_index = ((q->hba_index + 1) % q->entry_count);
337 * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ
338 * @q: The Completion Queue that the host has completed processing for.
339 * @arm: Indicates whether the host wants to arms this CQ.
341 * This routine will mark all Completion queue entries on @q, from the last
342 * known completed entry to the last entry that was processed, as completed
343 * by clearing the valid bit for each completion queue entry. Then it will
344 * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
345 * The internal host index in the @q will be updated by this routine to indicate
346 * that the host has finished processing the entries. The @arm parameter
347 * indicates that the queue should be rearmed when ringing the doorbell.
349 * This function will return the number of CQEs that were released.
352 lpfc_sli4_cq_release(struct lpfc_queue *q, bool arm)
354 uint32_t released = 0;
355 struct lpfc_cqe *temp_qe;
356 struct lpfc_register doorbell;
358 /* sanity check on queue memory */
361 /* while there are valid entries */
362 while (q->hba_index != q->host_index) {
363 temp_qe = q->qe[q->host_index].cqe;
364 bf_set_le32(lpfc_cqe_valid, temp_qe, 0);
366 q->host_index = ((q->host_index + 1) % q->entry_count);
368 if (unlikely(released == 0 && !arm))
371 /* ring doorbell for number popped */
374 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
375 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
376 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION);
377 bf_set(lpfc_eqcq_doorbell_cqid_hi, &doorbell,
378 (q->queue_id >> LPFC_CQID_HI_FIELD_SHIFT));
379 bf_set(lpfc_eqcq_doorbell_cqid_lo, &doorbell, q->queue_id);
380 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
385 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
386 * @q: The Header Receive Queue to operate on.
387 * @wqe: The Receive Queue Entry to put on the Receive queue.
389 * This routine will copy the contents of @wqe to the next available entry on
390 * the @q. This function will then ring the Receive Queue Doorbell to signal the
391 * HBA to start processing the Receive Queue Entry. This function returns the
392 * index that the rqe was copied to if successful. If no entries are available
393 * on @q then this function will return -ENOMEM.
394 * The caller is expected to hold the hbalock when calling this routine.
397 lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
398 struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe)
400 struct lpfc_rqe *temp_hrqe;
401 struct lpfc_rqe *temp_drqe;
402 struct lpfc_register doorbell;
403 int put_index = hq->host_index;
405 /* sanity check on queue memory */
406 if (unlikely(!hq) || unlikely(!dq))
408 temp_hrqe = hq->qe[hq->host_index].rqe;
409 temp_drqe = dq->qe[dq->host_index].rqe;
411 if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ)
413 if (hq->host_index != dq->host_index)
415 /* If the host has not yet processed the next entry then we are done */
416 if (((hq->host_index + 1) % hq->entry_count) == hq->hba_index)
418 lpfc_sli_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size);
419 lpfc_sli_pcimem_bcopy(drqe, temp_drqe, dq->entry_size);
421 /* Update the host index to point to the next slot */
422 hq->host_index = ((hq->host_index + 1) % hq->entry_count);
423 dq->host_index = ((dq->host_index + 1) % dq->entry_count);
425 /* Ring The Header Receive Queue Doorbell */
426 if (!(hq->host_index % hq->entry_repost)) {
428 bf_set(lpfc_rq_doorbell_num_posted, &doorbell,
430 bf_set(lpfc_rq_doorbell_id, &doorbell, hq->queue_id);
431 writel(doorbell.word0, hq->phba->sli4_hba.RQDBregaddr);
437 * lpfc_sli4_rq_release - Updates internal hba index for RQ
438 * @q: The Header Receive Queue to operate on.
440 * This routine will update the HBA index of a queue to reflect consumption of
441 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
442 * consumed an entry the host calls this function to update the queue's
443 * internal pointers. This routine returns the number of entries that were
444 * consumed by the HBA.
447 lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq)
449 /* sanity check on queue memory */
450 if (unlikely(!hq) || unlikely(!dq))
453 if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ))
455 hq->hba_index = ((hq->hba_index + 1) % hq->entry_count);
456 dq->hba_index = ((dq->hba_index + 1) % dq->entry_count);
461 * lpfc_cmd_iocb - Get next command iocb entry in the ring
462 * @phba: Pointer to HBA context object.
463 * @pring: Pointer to driver SLI ring object.
465 * This function returns pointer to next command iocb entry
466 * in the command ring. The caller must hold hbalock to prevent
467 * other threads consume the next command iocb.
468 * SLI-2/SLI-3 provide different sized iocbs.
470 static inline IOCB_t *
471 lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
473 return (IOCB_t *) (((char *) pring->cmdringaddr) +
474 pring->cmdidx * phba->iocb_cmd_size);
478 * lpfc_resp_iocb - Get next response iocb entry in the ring
479 * @phba: Pointer to HBA context object.
480 * @pring: Pointer to driver SLI ring object.
482 * This function returns pointer to next response iocb entry
483 * in the response ring. The caller must hold hbalock to make sure
484 * that no other thread consume the next response iocb.
485 * SLI-2/SLI-3 provide different sized iocbs.
487 static inline IOCB_t *
488 lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
490 return (IOCB_t *) (((char *) pring->rspringaddr) +
491 pring->rspidx * phba->iocb_rsp_size);
495 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
496 * @phba: Pointer to HBA context object.
498 * This function is called with hbalock held. This function
499 * allocates a new driver iocb object from the iocb pool. If the
500 * allocation is successful, it returns pointer to the newly
501 * allocated iocb object else it returns NULL.
503 static struct lpfc_iocbq *
504 __lpfc_sli_get_iocbq(struct lpfc_hba *phba)
506 struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
507 struct lpfc_iocbq * iocbq = NULL;
509 list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
512 if (phba->iocb_cnt > phba->iocb_max)
513 phba->iocb_max = phba->iocb_cnt;
518 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
519 * @phba: Pointer to HBA context object.
520 * @xritag: XRI value.
522 * This function clears the sglq pointer from the array of acive
523 * sglq's. The xritag that is passed in is used to index into the
524 * array. Before the xritag can be used it needs to be adjusted
525 * by subtracting the xribase.
527 * Returns sglq ponter = success, NULL = Failure.
529 static struct lpfc_sglq *
530 __lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
532 struct lpfc_sglq *sglq;
534 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
535 phba->sli4_hba.lpfc_sglq_active_list[xritag] = NULL;
540 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
541 * @phba: Pointer to HBA context object.
542 * @xritag: XRI value.
544 * This function returns the sglq pointer from the array of acive
545 * sglq's. The xritag that is passed in is used to index into the
546 * array. Before the xritag can be used it needs to be adjusted
547 * by subtracting the xribase.
549 * Returns sglq ponter = success, NULL = Failure.
552 __lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
554 struct lpfc_sglq *sglq;
556 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
561 * lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
562 * @phba: Pointer to HBA context object.
563 * @xritag: xri used in this exchange.
564 * @rrq: The RRQ to be cleared.
568 lpfc_clr_rrq_active(struct lpfc_hba *phba,
570 struct lpfc_node_rrq *rrq)
572 struct lpfc_nodelist *ndlp = NULL;
574 if ((rrq->vport) && NLP_CHK_NODE_ACT(rrq->ndlp))
575 ndlp = lpfc_findnode_did(rrq->vport, rrq->nlp_DID);
577 /* The target DID could have been swapped (cable swap)
578 * we should use the ndlp from the findnode if it is
581 if ((!ndlp) && rrq->ndlp)
587 if (test_and_clear_bit(xritag, ndlp->active_rrqs.xri_bitmap)) {
590 rrq->rrq_stop_time = 0;
593 mempool_free(rrq, phba->rrq_pool);
597 * lpfc_handle_rrq_active - Checks if RRQ has waithed RATOV.
598 * @phba: Pointer to HBA context object.
600 * This function is called with hbalock held. This function
601 * Checks if stop_time (ratov from setting rrq active) has
602 * been reached, if it has and the send_rrq flag is set then
603 * it will call lpfc_send_rrq. If the send_rrq flag is not set
604 * then it will just call the routine to clear the rrq and
605 * free the rrq resource.
606 * The timer is set to the next rrq that is going to expire before
607 * leaving the routine.
611 lpfc_handle_rrq_active(struct lpfc_hba *phba)
613 struct lpfc_node_rrq *rrq;
614 struct lpfc_node_rrq *nextrrq;
615 unsigned long next_time;
616 unsigned long iflags;
619 spin_lock_irqsave(&phba->hbalock, iflags);
620 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
621 next_time = jiffies + HZ * (phba->fc_ratov + 1);
622 list_for_each_entry_safe(rrq, nextrrq,
623 &phba->active_rrq_list, list) {
624 if (time_after(jiffies, rrq->rrq_stop_time))
625 list_move(&rrq->list, &send_rrq);
626 else if (time_before(rrq->rrq_stop_time, next_time))
627 next_time = rrq->rrq_stop_time;
629 spin_unlock_irqrestore(&phba->hbalock, iflags);
630 if (!list_empty(&phba->active_rrq_list))
631 mod_timer(&phba->rrq_tmr, next_time);
632 list_for_each_entry_safe(rrq, nextrrq, &send_rrq, list) {
633 list_del(&rrq->list);
635 /* this call will free the rrq */
636 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
637 else if (lpfc_send_rrq(phba, rrq)) {
638 /* if we send the rrq then the completion handler
639 * will clear the bit in the xribitmap.
641 lpfc_clr_rrq_active(phba, rrq->xritag,
648 * lpfc_get_active_rrq - Get the active RRQ for this exchange.
649 * @vport: Pointer to vport context object.
650 * @xri: The xri used in the exchange.
651 * @did: The targets DID for this exchange.
653 * returns NULL = rrq not found in the phba->active_rrq_list.
654 * rrq = rrq for this xri and target.
656 struct lpfc_node_rrq *
657 lpfc_get_active_rrq(struct lpfc_vport *vport, uint16_t xri, uint32_t did)
659 struct lpfc_hba *phba = vport->phba;
660 struct lpfc_node_rrq *rrq;
661 struct lpfc_node_rrq *nextrrq;
662 unsigned long iflags;
664 if (phba->sli_rev != LPFC_SLI_REV4)
666 spin_lock_irqsave(&phba->hbalock, iflags);
667 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) {
668 if (rrq->vport == vport && rrq->xritag == xri &&
669 rrq->nlp_DID == did){
670 list_del(&rrq->list);
671 spin_unlock_irqrestore(&phba->hbalock, iflags);
675 spin_unlock_irqrestore(&phba->hbalock, iflags);
680 * lpfc_cleanup_vports_rrqs - Remove and clear the active RRQ for this vport.
681 * @vport: Pointer to vport context object.
682 * @ndlp: Pointer to the lpfc_node_list structure.
683 * If ndlp is NULL Remove all active RRQs for this vport from the
684 * phba->active_rrq_list and clear the rrq.
685 * If ndlp is not NULL then only remove rrqs for this vport & this ndlp.
688 lpfc_cleanup_vports_rrqs(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
691 struct lpfc_hba *phba = vport->phba;
692 struct lpfc_node_rrq *rrq;
693 struct lpfc_node_rrq *nextrrq;
694 unsigned long iflags;
697 if (phba->sli_rev != LPFC_SLI_REV4)
700 lpfc_sli4_vport_delete_els_xri_aborted(vport);
701 lpfc_sli4_vport_delete_fcp_xri_aborted(vport);
703 spin_lock_irqsave(&phba->hbalock, iflags);
704 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list)
705 if ((rrq->vport == vport) && (!ndlp || rrq->ndlp == ndlp))
706 list_move(&rrq->list, &rrq_list);
707 spin_unlock_irqrestore(&phba->hbalock, iflags);
709 list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
710 list_del(&rrq->list);
711 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
716 * lpfc_cleanup_wt_rrqs - Remove all rrq's from the active list.
717 * @phba: Pointer to HBA context object.
719 * Remove all rrqs from the phba->active_rrq_list and free them by
720 * calling __lpfc_clr_active_rrq
724 lpfc_cleanup_wt_rrqs(struct lpfc_hba *phba)
726 struct lpfc_node_rrq *rrq;
727 struct lpfc_node_rrq *nextrrq;
728 unsigned long next_time;
729 unsigned long iflags;
732 if (phba->sli_rev != LPFC_SLI_REV4)
734 spin_lock_irqsave(&phba->hbalock, iflags);
735 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
736 next_time = jiffies + HZ * (phba->fc_ratov * 2);
737 list_splice_init(&phba->active_rrq_list, &rrq_list);
738 spin_unlock_irqrestore(&phba->hbalock, iflags);
740 list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
741 list_del(&rrq->list);
742 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
744 if (!list_empty(&phba->active_rrq_list))
745 mod_timer(&phba->rrq_tmr, next_time);
750 * lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
751 * @phba: Pointer to HBA context object.
752 * @ndlp: Targets nodelist pointer for this exchange.
753 * @xritag the xri in the bitmap to test.
755 * This function is called with hbalock held. This function
756 * returns 0 = rrq not active for this xri
757 * 1 = rrq is valid for this xri.
760 lpfc_test_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
765 if (test_bit(xritag, ndlp->active_rrqs.xri_bitmap))
772 * lpfc_set_rrq_active - set RRQ active bit in xri_bitmap.
773 * @phba: Pointer to HBA context object.
774 * @ndlp: nodelist pointer for this target.
775 * @xritag: xri used in this exchange.
776 * @rxid: Remote Exchange ID.
777 * @send_rrq: Flag used to determine if we should send rrq els cmd.
779 * This function takes the hbalock.
780 * The active bit is always set in the active rrq xri_bitmap even
781 * if there is no slot avaiable for the other rrq information.
783 * returns 0 rrq actived for this xri
784 * < 0 No memory or invalid ndlp.
787 lpfc_set_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
788 uint16_t xritag, uint16_t rxid, uint16_t send_rrq)
790 unsigned long iflags;
791 struct lpfc_node_rrq *rrq;
797 if (!phba->cfg_enable_rrq)
800 spin_lock_irqsave(&phba->hbalock, iflags);
801 if (phba->pport->load_flag & FC_UNLOADING) {
802 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
807 * set the active bit even if there is no mem available.
809 if (NLP_CHK_FREE_REQ(ndlp))
812 if (ndlp->vport && (ndlp->vport->load_flag & FC_UNLOADING))
815 if (test_and_set_bit(xritag, ndlp->active_rrqs.xri_bitmap))
818 spin_unlock_irqrestore(&phba->hbalock, iflags);
819 rrq = mempool_alloc(phba->rrq_pool, GFP_KERNEL);
821 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
822 "3155 Unable to allocate RRQ xri:0x%x rxid:0x%x"
823 " DID:0x%x Send:%d\n",
824 xritag, rxid, ndlp->nlp_DID, send_rrq);
827 rrq->send_rrq = send_rrq;
828 rrq->xritag = xritag;
829 rrq->rrq_stop_time = jiffies + HZ * (phba->fc_ratov + 1);
831 rrq->nlp_DID = ndlp->nlp_DID;
832 rrq->vport = ndlp->vport;
834 rrq->send_rrq = send_rrq;
835 spin_lock_irqsave(&phba->hbalock, iflags);
836 empty = list_empty(&phba->active_rrq_list);
837 list_add_tail(&rrq->list, &phba->active_rrq_list);
838 phba->hba_flag |= HBA_RRQ_ACTIVE;
840 lpfc_worker_wake_up(phba);
841 spin_unlock_irqrestore(&phba->hbalock, iflags);
844 spin_unlock_irqrestore(&phba->hbalock, iflags);
845 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
846 "2921 Can't set rrq active xri:0x%x rxid:0x%x"
847 " DID:0x%x Send:%d\n",
848 xritag, rxid, ndlp->nlp_DID, send_rrq);
853 * __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool
854 * @phba: Pointer to HBA context object.
855 * @piocb: Pointer to the iocbq.
857 * This function is called with hbalock held. This function
858 * gets a new driver sglq object from the sglq list. If the
859 * list is not empty then it is successful, it returns pointer to the newly
860 * allocated sglq object else it returns NULL.
862 static struct lpfc_sglq *
863 __lpfc_sli_get_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
865 struct list_head *lpfc_sgl_list = &phba->sli4_hba.lpfc_sgl_list;
866 struct lpfc_sglq *sglq = NULL;
867 struct lpfc_sglq *start_sglq = NULL;
868 struct lpfc_scsi_buf *lpfc_cmd;
869 struct lpfc_nodelist *ndlp;
872 if (piocbq->iocb_flag & LPFC_IO_FCP) {
873 lpfc_cmd = (struct lpfc_scsi_buf *) piocbq->context1;
874 ndlp = lpfc_cmd->rdata->pnode;
875 } else if ((piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) &&
876 !(piocbq->iocb_flag & LPFC_IO_LIBDFC))
877 ndlp = piocbq->context_un.ndlp;
879 ndlp = piocbq->context1;
881 list_remove_head(lpfc_sgl_list, sglq, struct lpfc_sglq, list);
886 if (lpfc_test_rrq_active(phba, ndlp, sglq->sli4_xritag)) {
887 /* This xri has an rrq outstanding for this DID.
888 * put it back in the list and get another xri.
890 list_add_tail(&sglq->list, lpfc_sgl_list);
892 list_remove_head(lpfc_sgl_list, sglq,
893 struct lpfc_sglq, list);
894 if (sglq == start_sglq) {
902 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
903 sglq->state = SGL_ALLOCATED;
909 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
910 * @phba: Pointer to HBA context object.
912 * This function is called with no lock held. This function
913 * allocates a new driver iocb object from the iocb pool. If the
914 * allocation is successful, it returns pointer to the newly
915 * allocated iocb object else it returns NULL.
918 lpfc_sli_get_iocbq(struct lpfc_hba *phba)
920 struct lpfc_iocbq * iocbq = NULL;
921 unsigned long iflags;
923 spin_lock_irqsave(&phba->hbalock, iflags);
924 iocbq = __lpfc_sli_get_iocbq(phba);
925 spin_unlock_irqrestore(&phba->hbalock, iflags);
930 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
931 * @phba: Pointer to HBA context object.
932 * @iocbq: Pointer to driver iocb object.
934 * This function is called with hbalock held to release driver
935 * iocb object to the iocb pool. The iotag in the iocb object
936 * does not change for each use of the iocb object. This function
937 * clears all other fields of the iocb object when it is freed.
938 * The sqlq structure that holds the xritag and phys and virtual
939 * mappings for the scatter gather list is retrieved from the
940 * active array of sglq. The get of the sglq pointer also clears
941 * the entry in the array. If the status of the IO indiactes that
942 * this IO was aborted then the sglq entry it put on the
943 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
944 * IO has good status or fails for any other reason then the sglq
945 * entry is added to the free list (lpfc_sgl_list).
948 __lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
950 struct lpfc_sglq *sglq;
951 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
952 unsigned long iflag = 0;
953 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
955 if (iocbq->sli4_xritag == NO_XRI)
958 sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_lxritag);
961 if ((iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) &&
962 (sglq->state != SGL_XRI_ABORTED)) {
963 spin_lock_irqsave(&phba->sli4_hba.abts_sgl_list_lock,
965 list_add(&sglq->list,
966 &phba->sli4_hba.lpfc_abts_els_sgl_list);
967 spin_unlock_irqrestore(
968 &phba->sli4_hba.abts_sgl_list_lock, iflag);
970 sglq->state = SGL_FREED;
972 list_add_tail(&sglq->list,
973 &phba->sli4_hba.lpfc_sgl_list);
975 /* Check if TXQ queue needs to be serviced */
977 lpfc_worker_wake_up(phba);
983 * Clean all volatile data fields, preserve iotag and node struct.
985 memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
986 iocbq->sli4_lxritag = NO_XRI;
987 iocbq->sli4_xritag = NO_XRI;
988 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
993 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
994 * @phba: Pointer to HBA context object.
995 * @iocbq: Pointer to driver iocb object.
997 * This function is called with hbalock held to release driver
998 * iocb object to the iocb pool. The iotag in the iocb object
999 * does not change for each use of the iocb object. This function
1000 * clears all other fields of the iocb object when it is freed.
1003 __lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1005 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1008 * Clean all volatile data fields, preserve iotag and node struct.
1010 memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1011 iocbq->sli4_xritag = NO_XRI;
1012 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1016 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
1017 * @phba: Pointer to HBA context object.
1018 * @iocbq: Pointer to driver iocb object.
1020 * This function is called with hbalock held to release driver
1021 * iocb object to the iocb pool. The iotag in the iocb object
1022 * does not change for each use of the iocb object. This function
1023 * clears all other fields of the iocb object when it is freed.
1026 __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1028 phba->__lpfc_sli_release_iocbq(phba, iocbq);
1033 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
1034 * @phba: Pointer to HBA context object.
1035 * @iocbq: Pointer to driver iocb object.
1037 * This function is called with no lock held to release the iocb to
1041 lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1043 unsigned long iflags;
1046 * Clean all volatile data fields, preserve iotag and node struct.
1048 spin_lock_irqsave(&phba->hbalock, iflags);
1049 __lpfc_sli_release_iocbq(phba, iocbq);
1050 spin_unlock_irqrestore(&phba->hbalock, iflags);
1054 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
1055 * @phba: Pointer to HBA context object.
1056 * @iocblist: List of IOCBs.
1057 * @ulpstatus: ULP status in IOCB command field.
1058 * @ulpWord4: ULP word-4 in IOCB command field.
1060 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
1061 * on the list by invoking the complete callback function associated with the
1062 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
1066 lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
1067 uint32_t ulpstatus, uint32_t ulpWord4)
1069 struct lpfc_iocbq *piocb;
1071 while (!list_empty(iocblist)) {
1072 list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
1074 if (!piocb->iocb_cmpl)
1075 lpfc_sli_release_iocbq(phba, piocb);
1077 piocb->iocb.ulpStatus = ulpstatus;
1078 piocb->iocb.un.ulpWord[4] = ulpWord4;
1079 (piocb->iocb_cmpl) (phba, piocb, piocb);
1086 * lpfc_sli_iocb_cmd_type - Get the iocb type
1087 * @iocb_cmnd: iocb command code.
1089 * This function is called by ring event handler function to get the iocb type.
1090 * This function translates the iocb command to an iocb command type used to
1091 * decide the final disposition of each completed IOCB.
1092 * The function returns
1093 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
1094 * LPFC_SOL_IOCB if it is a solicited iocb completion
1095 * LPFC_ABORT_IOCB if it is an abort iocb
1096 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
1098 * The caller is not required to hold any lock.
1100 static lpfc_iocb_type
1101 lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
1103 lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
1105 if (iocb_cmnd > CMD_MAX_IOCB_CMD)
1108 switch (iocb_cmnd) {
1109 case CMD_XMIT_SEQUENCE_CR:
1110 case CMD_XMIT_SEQUENCE_CX:
1111 case CMD_XMIT_BCAST_CN:
1112 case CMD_XMIT_BCAST_CX:
1113 case CMD_ELS_REQUEST_CR:
1114 case CMD_ELS_REQUEST_CX:
1115 case CMD_CREATE_XRI_CR:
1116 case CMD_CREATE_XRI_CX:
1117 case CMD_GET_RPI_CN:
1118 case CMD_XMIT_ELS_RSP_CX:
1119 case CMD_GET_RPI_CR:
1120 case CMD_FCP_IWRITE_CR:
1121 case CMD_FCP_IWRITE_CX:
1122 case CMD_FCP_IREAD_CR:
1123 case CMD_FCP_IREAD_CX:
1124 case CMD_FCP_ICMND_CR:
1125 case CMD_FCP_ICMND_CX:
1126 case CMD_FCP_TSEND_CX:
1127 case CMD_FCP_TRSP_CX:
1128 case CMD_FCP_TRECEIVE_CX:
1129 case CMD_FCP_AUTO_TRSP_CX:
1130 case CMD_ADAPTER_MSG:
1131 case CMD_ADAPTER_DUMP:
1132 case CMD_XMIT_SEQUENCE64_CR:
1133 case CMD_XMIT_SEQUENCE64_CX:
1134 case CMD_XMIT_BCAST64_CN:
1135 case CMD_XMIT_BCAST64_CX:
1136 case CMD_ELS_REQUEST64_CR:
1137 case CMD_ELS_REQUEST64_CX:
1138 case CMD_FCP_IWRITE64_CR:
1139 case CMD_FCP_IWRITE64_CX:
1140 case CMD_FCP_IREAD64_CR:
1141 case CMD_FCP_IREAD64_CX:
1142 case CMD_FCP_ICMND64_CR:
1143 case CMD_FCP_ICMND64_CX:
1144 case CMD_FCP_TSEND64_CX:
1145 case CMD_FCP_TRSP64_CX:
1146 case CMD_FCP_TRECEIVE64_CX:
1147 case CMD_GEN_REQUEST64_CR:
1148 case CMD_GEN_REQUEST64_CX:
1149 case CMD_XMIT_ELS_RSP64_CX:
1150 case DSSCMD_IWRITE64_CR:
1151 case DSSCMD_IWRITE64_CX:
1152 case DSSCMD_IREAD64_CR:
1153 case DSSCMD_IREAD64_CX:
1154 type = LPFC_SOL_IOCB;
1156 case CMD_ABORT_XRI_CN:
1157 case CMD_ABORT_XRI_CX:
1158 case CMD_CLOSE_XRI_CN:
1159 case CMD_CLOSE_XRI_CX:
1160 case CMD_XRI_ABORTED_CX:
1161 case CMD_ABORT_MXRI64_CN:
1162 case CMD_XMIT_BLS_RSP64_CX:
1163 type = LPFC_ABORT_IOCB;
1165 case CMD_RCV_SEQUENCE_CX:
1166 case CMD_RCV_ELS_REQ_CX:
1167 case CMD_RCV_SEQUENCE64_CX:
1168 case CMD_RCV_ELS_REQ64_CX:
1169 case CMD_ASYNC_STATUS:
1170 case CMD_IOCB_RCV_SEQ64_CX:
1171 case CMD_IOCB_RCV_ELS64_CX:
1172 case CMD_IOCB_RCV_CONT64_CX:
1173 case CMD_IOCB_RET_XRI64_CX:
1174 type = LPFC_UNSOL_IOCB;
1176 case CMD_IOCB_XMIT_MSEQ64_CR:
1177 case CMD_IOCB_XMIT_MSEQ64_CX:
1178 case CMD_IOCB_RCV_SEQ_LIST64_CX:
1179 case CMD_IOCB_RCV_ELS_LIST64_CX:
1180 case CMD_IOCB_CLOSE_EXTENDED_CN:
1181 case CMD_IOCB_ABORT_EXTENDED_CN:
1182 case CMD_IOCB_RET_HBQE64_CN:
1183 case CMD_IOCB_FCP_IBIDIR64_CR:
1184 case CMD_IOCB_FCP_IBIDIR64_CX:
1185 case CMD_IOCB_FCP_ITASKMGT64_CX:
1186 case CMD_IOCB_LOGENTRY_CN:
1187 case CMD_IOCB_LOGENTRY_ASYNC_CN:
1188 printk("%s - Unhandled SLI-3 Command x%x\n",
1189 __func__, iocb_cmnd);
1190 type = LPFC_UNKNOWN_IOCB;
1193 type = LPFC_UNKNOWN_IOCB;
1201 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
1202 * @phba: Pointer to HBA context object.
1204 * This function is called from SLI initialization code
1205 * to configure every ring of the HBA's SLI interface. The
1206 * caller is not required to hold any lock. This function issues
1207 * a config_ring mailbox command for each ring.
1208 * This function returns zero if successful else returns a negative
1212 lpfc_sli_ring_map(struct lpfc_hba *phba)
1214 struct lpfc_sli *psli = &phba->sli;
1219 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1223 phba->link_state = LPFC_INIT_MBX_CMDS;
1224 for (i = 0; i < psli->num_rings; i++) {
1225 lpfc_config_ring(phba, i, pmb);
1226 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
1227 if (rc != MBX_SUCCESS) {
1228 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1229 "0446 Adapter failed to init (%d), "
1230 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
1232 rc, pmbox->mbxCommand,
1233 pmbox->mbxStatus, i);
1234 phba->link_state = LPFC_HBA_ERROR;
1239 mempool_free(pmb, phba->mbox_mem_pool);
1244 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
1245 * @phba: Pointer to HBA context object.
1246 * @pring: Pointer to driver SLI ring object.
1247 * @piocb: Pointer to the driver iocb object.
1249 * This function is called with hbalock held. The function adds the
1250 * new iocb to txcmplq of the given ring. This function always returns
1251 * 0. If this function is called for ELS ring, this function checks if
1252 * there is a vport associated with the ELS command. This function also
1253 * starts els_tmofunc timer if this is an ELS command.
1256 lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1257 struct lpfc_iocbq *piocb)
1259 list_add_tail(&piocb->list, &pring->txcmplq);
1260 piocb->iocb_flag |= LPFC_IO_ON_Q;
1261 pring->txcmplq_cnt++;
1262 if (pring->txcmplq_cnt > pring->txcmplq_max)
1263 pring->txcmplq_max = pring->txcmplq_cnt;
1265 if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
1266 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
1267 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
1271 mod_timer(&piocb->vport->els_tmofunc,
1272 jiffies + HZ * (phba->fc_ratov << 1));
1280 * lpfc_sli_ringtx_get - Get first element of the txq
1281 * @phba: Pointer to HBA context object.
1282 * @pring: Pointer to driver SLI ring object.
1284 * This function is called with hbalock held to get next
1285 * iocb in txq of the given ring. If there is any iocb in
1286 * the txq, the function returns first iocb in the list after
1287 * removing the iocb from the list, else it returns NULL.
1290 lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1292 struct lpfc_iocbq *cmd_iocb;
1294 list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
1295 if (cmd_iocb != NULL)
1301 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
1302 * @phba: Pointer to HBA context object.
1303 * @pring: Pointer to driver SLI ring object.
1305 * This function is called with hbalock held and the caller must post the
1306 * iocb without releasing the lock. If the caller releases the lock,
1307 * iocb slot returned by the function is not guaranteed to be available.
1308 * The function returns pointer to the next available iocb slot if there
1309 * is available slot in the ring, else it returns NULL.
1310 * If the get index of the ring is ahead of the put index, the function
1311 * will post an error attention event to the worker thread to take the
1312 * HBA to offline state.
1315 lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1317 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
1318 uint32_t max_cmd_idx = pring->numCiocb;
1319 if ((pring->next_cmdidx == pring->cmdidx) &&
1320 (++pring->next_cmdidx >= max_cmd_idx))
1321 pring->next_cmdidx = 0;
1323 if (unlikely(pring->local_getidx == pring->next_cmdidx)) {
1325 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
1327 if (unlikely(pring->local_getidx >= max_cmd_idx)) {
1328 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1329 "0315 Ring %d issue: portCmdGet %d "
1330 "is bigger than cmd ring %d\n",
1332 pring->local_getidx, max_cmd_idx);
1334 phba->link_state = LPFC_HBA_ERROR;
1336 * All error attention handlers are posted to
1339 phba->work_ha |= HA_ERATT;
1340 phba->work_hs = HS_FFER3;
1342 lpfc_worker_wake_up(phba);
1347 if (pring->local_getidx == pring->next_cmdidx)
1351 return lpfc_cmd_iocb(phba, pring);
1355 * lpfc_sli_next_iotag - Get an iotag for the iocb
1356 * @phba: Pointer to HBA context object.
1357 * @iocbq: Pointer to driver iocb object.
1359 * This function gets an iotag for the iocb. If there is no unused iotag and
1360 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
1361 * array and assigns a new iotag.
1362 * The function returns the allocated iotag if successful, else returns zero.
1363 * Zero is not a valid iotag.
1364 * The caller is not required to hold any lock.
1367 lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1369 struct lpfc_iocbq **new_arr;
1370 struct lpfc_iocbq **old_arr;
1372 struct lpfc_sli *psli = &phba->sli;
1375 spin_lock_irq(&phba->hbalock);
1376 iotag = psli->last_iotag;
1377 if(++iotag < psli->iocbq_lookup_len) {
1378 psli->last_iotag = iotag;
1379 psli->iocbq_lookup[iotag] = iocbq;
1380 spin_unlock_irq(&phba->hbalock);
1381 iocbq->iotag = iotag;
1383 } else if (psli->iocbq_lookup_len < (0xffff
1384 - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
1385 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
1386 spin_unlock_irq(&phba->hbalock);
1387 new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *),
1390 spin_lock_irq(&phba->hbalock);
1391 old_arr = psli->iocbq_lookup;
1392 if (new_len <= psli->iocbq_lookup_len) {
1393 /* highly unprobable case */
1395 iotag = psli->last_iotag;
1396 if(++iotag < psli->iocbq_lookup_len) {
1397 psli->last_iotag = iotag;
1398 psli->iocbq_lookup[iotag] = iocbq;
1399 spin_unlock_irq(&phba->hbalock);
1400 iocbq->iotag = iotag;
1403 spin_unlock_irq(&phba->hbalock);
1406 if (psli->iocbq_lookup)
1407 memcpy(new_arr, old_arr,
1408 ((psli->last_iotag + 1) *
1409 sizeof (struct lpfc_iocbq *)));
1410 psli->iocbq_lookup = new_arr;
1411 psli->iocbq_lookup_len = new_len;
1412 psli->last_iotag = iotag;
1413 psli->iocbq_lookup[iotag] = iocbq;
1414 spin_unlock_irq(&phba->hbalock);
1415 iocbq->iotag = iotag;
1420 spin_unlock_irq(&phba->hbalock);
1422 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
1423 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1430 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
1431 * @phba: Pointer to HBA context object.
1432 * @pring: Pointer to driver SLI ring object.
1433 * @iocb: Pointer to iocb slot in the ring.
1434 * @nextiocb: Pointer to driver iocb object which need to be
1435 * posted to firmware.
1437 * This function is called with hbalock held to post a new iocb to
1438 * the firmware. This function copies the new iocb to ring iocb slot and
1439 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1440 * a completion call back for this iocb else the function will free the
1444 lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1445 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
1450 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
1453 if (pring->ringno == LPFC_ELS_RING) {
1454 lpfc_debugfs_slow_ring_trc(phba,
1455 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1456 *(((uint32_t *) &nextiocb->iocb) + 4),
1457 *(((uint32_t *) &nextiocb->iocb) + 6),
1458 *(((uint32_t *) &nextiocb->iocb) + 7));
1462 * Issue iocb command to adapter
1464 lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
1466 pring->stats.iocb_cmd++;
1469 * If there is no completion routine to call, we can release the
1470 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1471 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1473 if (nextiocb->iocb_cmpl)
1474 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
1476 __lpfc_sli_release_iocbq(phba, nextiocb);
1479 * Let the HBA know what IOCB slot will be the next one the
1480 * driver will put a command into.
1482 pring->cmdidx = pring->next_cmdidx;
1483 writel(pring->cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
1487 * lpfc_sli_update_full_ring - Update the chip attention register
1488 * @phba: Pointer to HBA context object.
1489 * @pring: Pointer to driver SLI ring object.
1491 * The caller is not required to hold any lock for calling this function.
1492 * This function updates the chip attention bits for the ring to inform firmware
1493 * that there are pending work to be done for this ring and requests an
1494 * interrupt when there is space available in the ring. This function is
1495 * called when the driver is unable to post more iocbs to the ring due
1496 * to unavailability of space in the ring.
1499 lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1501 int ringno = pring->ringno;
1503 pring->flag |= LPFC_CALL_RING_AVAILABLE;
1508 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1509 * The HBA will tell us when an IOCB entry is available.
1511 writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
1512 readl(phba->CAregaddr); /* flush */
1514 pring->stats.iocb_cmd_full++;
1518 * lpfc_sli_update_ring - Update chip attention register
1519 * @phba: Pointer to HBA context object.
1520 * @pring: Pointer to driver SLI ring object.
1522 * This function updates the chip attention register bit for the
1523 * given ring to inform HBA that there is more work to be done
1524 * in this ring. The caller is not required to hold any lock.
1527 lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1529 int ringno = pring->ringno;
1532 * Tell the HBA that there is work to do in this ring.
1534 if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
1536 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
1537 readl(phba->CAregaddr); /* flush */
1542 * lpfc_sli_resume_iocb - Process iocbs in the txq
1543 * @phba: Pointer to HBA context object.
1544 * @pring: Pointer to driver SLI ring object.
1546 * This function is called with hbalock held to post pending iocbs
1547 * in the txq to the firmware. This function is called when driver
1548 * detects space available in the ring.
1551 lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1554 struct lpfc_iocbq *nextiocb;
1558 * (a) there is anything on the txq to send
1560 * (c) link attention events can be processed (fcp ring only)
1561 * (d) IOCB processing is not blocked by the outstanding mbox command.
1563 if (pring->txq_cnt &&
1564 lpfc_is_link_up(phba) &&
1565 (pring->ringno != phba->sli.fcp_ring ||
1566 phba->sli.sli_flag & LPFC_PROCESS_LA)) {
1568 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
1569 (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
1570 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
1573 lpfc_sli_update_ring(phba, pring);
1575 lpfc_sli_update_full_ring(phba, pring);
1582 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
1583 * @phba: Pointer to HBA context object.
1584 * @hbqno: HBQ number.
1586 * This function is called with hbalock held to get the next
1587 * available slot for the given HBQ. If there is free slot
1588 * available for the HBQ it will return pointer to the next available
1589 * HBQ entry else it will return NULL.
1591 static struct lpfc_hbq_entry *
1592 lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
1594 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1596 if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
1597 ++hbqp->next_hbqPutIdx >= hbqp->entry_count)
1598 hbqp->next_hbqPutIdx = 0;
1600 if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
1601 uint32_t raw_index = phba->hbq_get[hbqno];
1602 uint32_t getidx = le32_to_cpu(raw_index);
1604 hbqp->local_hbqGetIdx = getidx;
1606 if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
1607 lpfc_printf_log(phba, KERN_ERR,
1608 LOG_SLI | LOG_VPORT,
1609 "1802 HBQ %d: local_hbqGetIdx "
1610 "%u is > than hbqp->entry_count %u\n",
1611 hbqno, hbqp->local_hbqGetIdx,
1614 phba->link_state = LPFC_HBA_ERROR;
1618 if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
1622 return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
1627 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
1628 * @phba: Pointer to HBA context object.
1630 * This function is called with no lock held to free all the
1631 * hbq buffers while uninitializing the SLI interface. It also
1632 * frees the HBQ buffers returned by the firmware but not yet
1633 * processed by the upper layers.
1636 lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
1638 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
1639 struct hbq_dmabuf *hbq_buf;
1640 unsigned long flags;
1644 hbq_count = lpfc_sli_hbq_count();
1645 /* Return all memory used by all HBQs */
1646 spin_lock_irqsave(&phba->hbalock, flags);
1647 for (i = 0; i < hbq_count; ++i) {
1648 list_for_each_entry_safe(dmabuf, next_dmabuf,
1649 &phba->hbqs[i].hbq_buffer_list, list) {
1650 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1651 list_del(&hbq_buf->dbuf.list);
1652 (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
1654 phba->hbqs[i].buffer_count = 0;
1656 /* Return all HBQ buffer that are in-fly */
1657 list_for_each_entry_safe(dmabuf, next_dmabuf, &phba->rb_pend_list,
1659 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1660 list_del(&hbq_buf->dbuf.list);
1661 if (hbq_buf->tag == -1) {
1662 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1665 hbqno = hbq_buf->tag >> 16;
1666 if (hbqno >= LPFC_MAX_HBQS)
1667 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1670 (phba->hbqs[hbqno].hbq_free_buffer)(phba,
1675 /* Mark the HBQs not in use */
1676 phba->hbq_in_use = 0;
1677 spin_unlock_irqrestore(&phba->hbalock, flags);
1681 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
1682 * @phba: Pointer to HBA context object.
1683 * @hbqno: HBQ number.
1684 * @hbq_buf: Pointer to HBQ buffer.
1686 * This function is called with the hbalock held to post a
1687 * hbq buffer to the firmware. If the function finds an empty
1688 * slot in the HBQ, it will post the buffer. The function will return
1689 * pointer to the hbq entry if it successfully post the buffer
1690 * else it will return NULL.
1693 lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
1694 struct hbq_dmabuf *hbq_buf)
1696 return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
1700 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
1701 * @phba: Pointer to HBA context object.
1702 * @hbqno: HBQ number.
1703 * @hbq_buf: Pointer to HBQ buffer.
1705 * This function is called with the hbalock held to post a hbq buffer to the
1706 * firmware. If the function finds an empty slot in the HBQ, it will post the
1707 * buffer and place it on the hbq_buffer_list. The function will return zero if
1708 * it successfully post the buffer else it will return an error.
1711 lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
1712 struct hbq_dmabuf *hbq_buf)
1714 struct lpfc_hbq_entry *hbqe;
1715 dma_addr_t physaddr = hbq_buf->dbuf.phys;
1717 /* Get next HBQ entry slot to use */
1718 hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
1720 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1722 hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
1723 hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
1724 hbqe->bde.tus.f.bdeSize = hbq_buf->size;
1725 hbqe->bde.tus.f.bdeFlags = 0;
1726 hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
1727 hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
1729 hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
1730 writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
1732 readl(phba->hbq_put + hbqno);
1733 list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
1740 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
1741 * @phba: Pointer to HBA context object.
1742 * @hbqno: HBQ number.
1743 * @hbq_buf: Pointer to HBQ buffer.
1745 * This function is called with the hbalock held to post an RQE to the SLI4
1746 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
1747 * the hbq_buffer_list and return zero, otherwise it will return an error.
1750 lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
1751 struct hbq_dmabuf *hbq_buf)
1754 struct lpfc_rqe hrqe;
1755 struct lpfc_rqe drqe;
1757 hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
1758 hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
1759 drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
1760 drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
1761 rc = lpfc_sli4_rq_put(phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
1766 list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
1770 /* HBQ for ELS and CT traffic. */
1771 static struct lpfc_hbq_init lpfc_els_hbq = {
1776 .ring_mask = (1 << LPFC_ELS_RING),
1782 /* HBQ for the extra ring if needed */
1783 static struct lpfc_hbq_init lpfc_extra_hbq = {
1788 .ring_mask = (1 << LPFC_EXTRA_RING),
1795 struct lpfc_hbq_init *lpfc_hbq_defs[] = {
1801 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
1802 * @phba: Pointer to HBA context object.
1803 * @hbqno: HBQ number.
1804 * @count: Number of HBQ buffers to be posted.
1806 * This function is called with no lock held to post more hbq buffers to the
1807 * given HBQ. The function returns the number of HBQ buffers successfully
1811 lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
1813 uint32_t i, posted = 0;
1814 unsigned long flags;
1815 struct hbq_dmabuf *hbq_buffer;
1816 LIST_HEAD(hbq_buf_list);
1817 if (!phba->hbqs[hbqno].hbq_alloc_buffer)
1820 if ((phba->hbqs[hbqno].buffer_count + count) >
1821 lpfc_hbq_defs[hbqno]->entry_count)
1822 count = lpfc_hbq_defs[hbqno]->entry_count -
1823 phba->hbqs[hbqno].buffer_count;
1826 /* Allocate HBQ entries */
1827 for (i = 0; i < count; i++) {
1828 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
1831 list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
1833 /* Check whether HBQ is still in use */
1834 spin_lock_irqsave(&phba->hbalock, flags);
1835 if (!phba->hbq_in_use)
1837 while (!list_empty(&hbq_buf_list)) {
1838 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1840 hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
1842 if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
1843 phba->hbqs[hbqno].buffer_count++;
1846 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1848 spin_unlock_irqrestore(&phba->hbalock, flags);
1851 spin_unlock_irqrestore(&phba->hbalock, flags);
1852 while (!list_empty(&hbq_buf_list)) {
1853 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1855 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1861 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
1862 * @phba: Pointer to HBA context object.
1865 * This function posts more buffers to the HBQ. This function
1866 * is called with no lock held. The function returns the number of HBQ entries
1867 * successfully allocated.
1870 lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
1872 if (phba->sli_rev == LPFC_SLI_REV4)
1875 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1876 lpfc_hbq_defs[qno]->add_count);
1880 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
1881 * @phba: Pointer to HBA context object.
1882 * @qno: HBQ queue number.
1884 * This function is called from SLI initialization code path with
1885 * no lock held to post initial HBQ buffers to firmware. The
1886 * function returns the number of HBQ entries successfully allocated.
1889 lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
1891 if (phba->sli_rev == LPFC_SLI_REV4)
1892 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1893 lpfc_hbq_defs[qno]->entry_count);
1895 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1896 lpfc_hbq_defs[qno]->init_count);
1900 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
1901 * @phba: Pointer to HBA context object.
1902 * @hbqno: HBQ number.
1904 * This function removes the first hbq buffer on an hbq list and returns a
1905 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
1907 static struct hbq_dmabuf *
1908 lpfc_sli_hbqbuf_get(struct list_head *rb_list)
1910 struct lpfc_dmabuf *d_buf;
1912 list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
1915 return container_of(d_buf, struct hbq_dmabuf, dbuf);
1919 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
1920 * @phba: Pointer to HBA context object.
1921 * @tag: Tag of the hbq buffer.
1923 * This function is called with hbalock held. This function searches
1924 * for the hbq buffer associated with the given tag in the hbq buffer
1925 * list. If it finds the hbq buffer, it returns the hbq_buffer other wise
1928 static struct hbq_dmabuf *
1929 lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
1931 struct lpfc_dmabuf *d_buf;
1932 struct hbq_dmabuf *hbq_buf;
1936 if (hbqno >= LPFC_MAX_HBQS)
1939 spin_lock_irq(&phba->hbalock);
1940 list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
1941 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
1942 if (hbq_buf->tag == tag) {
1943 spin_unlock_irq(&phba->hbalock);
1947 spin_unlock_irq(&phba->hbalock);
1948 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT,
1949 "1803 Bad hbq tag. Data: x%x x%x\n",
1950 tag, phba->hbqs[tag >> 16].buffer_count);
1955 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
1956 * @phba: Pointer to HBA context object.
1957 * @hbq_buffer: Pointer to HBQ buffer.
1959 * This function is called with hbalock. This function gives back
1960 * the hbq buffer to firmware. If the HBQ does not have space to
1961 * post the buffer, it will free the buffer.
1964 lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
1969 hbqno = hbq_buffer->tag >> 16;
1970 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
1971 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1976 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
1977 * @mbxCommand: mailbox command code.
1979 * This function is called by the mailbox event handler function to verify
1980 * that the completed mailbox command is a legitimate mailbox command. If the
1981 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
1982 * and the mailbox event handler will take the HBA offline.
1985 lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
1989 switch (mbxCommand) {
1993 case MBX_WRITE_VPARMS:
1994 case MBX_RUN_BIU_DIAG:
1997 case MBX_CONFIG_LINK:
1998 case MBX_CONFIG_RING:
1999 case MBX_RESET_RING:
2000 case MBX_READ_CONFIG:
2001 case MBX_READ_RCONFIG:
2002 case MBX_READ_SPARM:
2003 case MBX_READ_STATUS:
2007 case MBX_READ_LNK_STAT:
2009 case MBX_UNREG_LOGIN:
2011 case MBX_DUMP_MEMORY:
2012 case MBX_DUMP_CONTEXT:
2015 case MBX_UPDATE_CFG:
2017 case MBX_DEL_LD_ENTRY:
2018 case MBX_RUN_PROGRAM:
2020 case MBX_SET_VARIABLE:
2021 case MBX_UNREG_D_ID:
2022 case MBX_KILL_BOARD:
2023 case MBX_CONFIG_FARP:
2026 case MBX_RUN_BIU_DIAG64:
2027 case MBX_CONFIG_PORT:
2028 case MBX_READ_SPARM64:
2029 case MBX_READ_RPI64:
2030 case MBX_REG_LOGIN64:
2031 case MBX_READ_TOPOLOGY:
2034 case MBX_LOAD_EXP_ROM:
2035 case MBX_ASYNCEVT_ENABLE:
2039 case MBX_PORT_CAPABILITIES:
2040 case MBX_PORT_IOV_CONTROL:
2041 case MBX_SLI4_CONFIG:
2042 case MBX_SLI4_REQ_FTRS:
2044 case MBX_UNREG_FCFI:
2049 case MBX_RESUME_RPI:
2050 case MBX_READ_EVENT_LOG_STATUS:
2051 case MBX_READ_EVENT_LOG:
2052 case MBX_SECURITY_MGMT:
2064 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
2065 * @phba: Pointer to HBA context object.
2066 * @pmboxq: Pointer to mailbox command.
2068 * This is completion handler function for mailbox commands issued from
2069 * lpfc_sli_issue_mbox_wait function. This function is called by the
2070 * mailbox event handler function with no lock held. This function
2071 * will wake up thread waiting on the wait queue pointed by context1
2075 lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
2077 wait_queue_head_t *pdone_q;
2078 unsigned long drvr_flag;
2081 * If pdone_q is empty, the driver thread gave up waiting and
2082 * continued running.
2084 pmboxq->mbox_flag |= LPFC_MBX_WAKE;
2085 spin_lock_irqsave(&phba->hbalock, drvr_flag);
2086 pdone_q = (wait_queue_head_t *) pmboxq->context1;
2088 wake_up_interruptible(pdone_q);
2089 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
2095 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
2096 * @phba: Pointer to HBA context object.
2097 * @pmb: Pointer to mailbox object.
2099 * This function is the default mailbox completion handler. It
2100 * frees the memory resources associated with the completed mailbox
2101 * command. If the completed command is a REG_LOGIN mailbox command,
2102 * this function will issue a UREG_LOGIN to re-claim the RPI.
2105 lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2107 struct lpfc_vport *vport = pmb->vport;
2108 struct lpfc_dmabuf *mp;
2109 struct lpfc_nodelist *ndlp;
2110 struct Scsi_Host *shost;
2114 mp = (struct lpfc_dmabuf *) (pmb->context1);
2117 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2122 * If a REG_LOGIN succeeded after node is destroyed or node
2123 * is in re-discovery driver need to cleanup the RPI.
2125 if (!(phba->pport->load_flag & FC_UNLOADING) &&
2126 pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
2127 !pmb->u.mb.mbxStatus) {
2128 rpi = pmb->u.mb.un.varWords[0];
2129 vpi = pmb->u.mb.un.varRegLogin.vpi;
2130 lpfc_unreg_login(phba, vpi, rpi, pmb);
2131 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2132 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2133 if (rc != MBX_NOT_FINISHED)
2137 if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) &&
2138 !(phba->pport->load_flag & FC_UNLOADING) &&
2139 !pmb->u.mb.mbxStatus) {
2140 shost = lpfc_shost_from_vport(vport);
2141 spin_lock_irq(shost->host_lock);
2142 vport->vpi_state |= LPFC_VPI_REGISTERED;
2143 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
2144 spin_unlock_irq(shost->host_lock);
2147 if (pmb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
2148 ndlp = (struct lpfc_nodelist *)pmb->context2;
2150 pmb->context2 = NULL;
2153 /* Check security permission status on INIT_LINK mailbox command */
2154 if ((pmb->u.mb.mbxCommand == MBX_INIT_LINK) &&
2155 (pmb->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
2156 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2157 "2860 SLI authentication is required "
2158 "for INIT_LINK but has not done yet\n");
2160 if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
2161 lpfc_sli4_mbox_cmd_free(phba, pmb);
2163 mempool_free(pmb, phba->mbox_mem_pool);
2167 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
2168 * @phba: Pointer to HBA context object.
2170 * This function is called with no lock held. This function processes all
2171 * the completed mailbox commands and gives it to upper layers. The interrupt
2172 * service routine processes mailbox completion interrupt and adds completed
2173 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
2174 * Worker thread call lpfc_sli_handle_mb_event, which will return the
2175 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
2176 * function returns the mailbox commands to the upper layer by calling the
2177 * completion handler function of each mailbox.
2180 lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
2187 phba->sli.slistat.mbox_event++;
2189 /* Get all completed mailboxe buffers into the cmplq */
2190 spin_lock_irq(&phba->hbalock);
2191 list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
2192 spin_unlock_irq(&phba->hbalock);
2194 /* Get a Mailbox buffer to setup mailbox commands for callback */
2196 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
2202 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
2204 lpfc_debugfs_disc_trc(pmb->vport,
2205 LPFC_DISC_TRC_MBOX_VPORT,
2206 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
2207 (uint32_t)pmbox->mbxCommand,
2208 pmbox->un.varWords[0],
2209 pmbox->un.varWords[1]);
2212 lpfc_debugfs_disc_trc(phba->pport,
2214 "MBOX cmpl: cmd:x%x mb:x%x x%x",
2215 (uint32_t)pmbox->mbxCommand,
2216 pmbox->un.varWords[0],
2217 pmbox->un.varWords[1]);
2222 * It is a fatal error if unknown mbox command completion.
2224 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
2226 /* Unknown mailbox command compl */
2227 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2228 "(%d):0323 Unknown Mailbox command "
2229 "x%x (x%x/x%x) Cmpl\n",
2230 pmb->vport ? pmb->vport->vpi : 0,
2232 lpfc_sli_config_mbox_subsys_get(phba,
2234 lpfc_sli_config_mbox_opcode_get(phba,
2236 phba->link_state = LPFC_HBA_ERROR;
2237 phba->work_hs = HS_FFER3;
2238 lpfc_handle_eratt(phba);
2242 if (pmbox->mbxStatus) {
2243 phba->sli.slistat.mbox_stat_err++;
2244 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
2245 /* Mbox cmd cmpl error - RETRYing */
2246 lpfc_printf_log(phba, KERN_INFO,
2248 "(%d):0305 Mbox cmd cmpl "
2249 "error - RETRYing Data: x%x "
2250 "(x%x/x%x) x%x x%x x%x\n",
2251 pmb->vport ? pmb->vport->vpi : 0,
2253 lpfc_sli_config_mbox_subsys_get(phba,
2255 lpfc_sli_config_mbox_opcode_get(phba,
2258 pmbox->un.varWords[0],
2259 pmb->vport->port_state);
2260 pmbox->mbxStatus = 0;
2261 pmbox->mbxOwner = OWN_HOST;
2262 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2263 if (rc != MBX_NOT_FINISHED)
2268 /* Mailbox cmd <cmd> Cmpl <cmpl> */
2269 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
2270 "(%d):0307 Mailbox cmd x%x (x%x/x%x) Cmpl x%p "
2271 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n",
2272 pmb->vport ? pmb->vport->vpi : 0,
2274 lpfc_sli_config_mbox_subsys_get(phba, pmb),
2275 lpfc_sli_config_mbox_opcode_get(phba, pmb),
2277 *((uint32_t *) pmbox),
2278 pmbox->un.varWords[0],
2279 pmbox->un.varWords[1],
2280 pmbox->un.varWords[2],
2281 pmbox->un.varWords[3],
2282 pmbox->un.varWords[4],
2283 pmbox->un.varWords[5],
2284 pmbox->un.varWords[6],
2285 pmbox->un.varWords[7]);
2288 pmb->mbox_cmpl(phba,pmb);
2294 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
2295 * @phba: Pointer to HBA context object.
2296 * @pring: Pointer to driver SLI ring object.
2299 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
2300 * is set in the tag the buffer is posted for a particular exchange,
2301 * the function will return the buffer without replacing the buffer.
2302 * If the buffer is for unsolicited ELS or CT traffic, this function
2303 * returns the buffer and also posts another buffer to the firmware.
2305 static struct lpfc_dmabuf *
2306 lpfc_sli_get_buff(struct lpfc_hba *phba,
2307 struct lpfc_sli_ring *pring,
2310 struct hbq_dmabuf *hbq_entry;
2312 if (tag & QUE_BUFTAG_BIT)
2313 return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
2314 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
2317 return &hbq_entry->dbuf;
2321 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
2322 * @phba: Pointer to HBA context object.
2323 * @pring: Pointer to driver SLI ring object.
2324 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
2325 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
2326 * @fch_type: the type for the first frame of the sequence.
2328 * This function is called with no lock held. This function uses the r_ctl and
2329 * type of the received sequence to find the correct callback function to call
2330 * to process the sequence.
2333 lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2334 struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
2339 /* unSolicited Responses */
2340 if (pring->prt[0].profile) {
2341 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
2342 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
2346 /* We must search, based on rctl / type
2347 for the right routine */
2348 for (i = 0; i < pring->num_mask; i++) {
2349 if ((pring->prt[i].rctl == fch_r_ctl) &&
2350 (pring->prt[i].type == fch_type)) {
2351 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
2352 (pring->prt[i].lpfc_sli_rcv_unsol_event)
2353 (phba, pring, saveq);
2361 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
2362 * @phba: Pointer to HBA context object.
2363 * @pring: Pointer to driver SLI ring object.
2364 * @saveq: Pointer to the unsolicited iocb.
2366 * This function is called with no lock held by the ring event handler
2367 * when there is an unsolicited iocb posted to the response ring by the
2368 * firmware. This function gets the buffer associated with the iocbs
2369 * and calls the event handler for the ring. This function handles both
2370 * qring buffers and hbq buffers.
2371 * When the function returns 1 the caller can free the iocb object otherwise
2372 * upper layer functions will free the iocb objects.
2375 lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2376 struct lpfc_iocbq *saveq)
2380 uint32_t Rctl, Type;
2382 struct lpfc_iocbq *iocbq;
2383 struct lpfc_dmabuf *dmzbuf;
2386 irsp = &(saveq->iocb);
2388 if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
2389 if (pring->lpfc_sli_rcv_async_status)
2390 pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
2392 lpfc_printf_log(phba,
2395 "0316 Ring %d handler: unexpected "
2396 "ASYNC_STATUS iocb received evt_code "
2399 irsp->un.asyncstat.evt_code);
2403 if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
2404 (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
2405 if (irsp->ulpBdeCount > 0) {
2406 dmzbuf = lpfc_sli_get_buff(phba, pring,
2407 irsp->un.ulpWord[3]);
2408 lpfc_in_buf_free(phba, dmzbuf);
2411 if (irsp->ulpBdeCount > 1) {
2412 dmzbuf = lpfc_sli_get_buff(phba, pring,
2413 irsp->unsli3.sli3Words[3]);
2414 lpfc_in_buf_free(phba, dmzbuf);
2417 if (irsp->ulpBdeCount > 2) {
2418 dmzbuf = lpfc_sli_get_buff(phba, pring,
2419 irsp->unsli3.sli3Words[7]);
2420 lpfc_in_buf_free(phba, dmzbuf);
2426 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
2427 if (irsp->ulpBdeCount != 0) {
2428 saveq->context2 = lpfc_sli_get_buff(phba, pring,
2429 irsp->un.ulpWord[3]);
2430 if (!saveq->context2)
2431 lpfc_printf_log(phba,
2434 "0341 Ring %d Cannot find buffer for "
2435 "an unsolicited iocb. tag 0x%x\n",
2437 irsp->un.ulpWord[3]);
2439 if (irsp->ulpBdeCount == 2) {
2440 saveq->context3 = lpfc_sli_get_buff(phba, pring,
2441 irsp->unsli3.sli3Words[7]);
2442 if (!saveq->context3)
2443 lpfc_printf_log(phba,
2446 "0342 Ring %d Cannot find buffer for an"
2447 " unsolicited iocb. tag 0x%x\n",
2449 irsp->unsli3.sli3Words[7]);
2451 list_for_each_entry(iocbq, &saveq->list, list) {
2452 irsp = &(iocbq->iocb);
2453 if (irsp->ulpBdeCount != 0) {
2454 iocbq->context2 = lpfc_sli_get_buff(phba, pring,
2455 irsp->un.ulpWord[3]);
2456 if (!iocbq->context2)
2457 lpfc_printf_log(phba,
2460 "0343 Ring %d Cannot find "
2461 "buffer for an unsolicited iocb"
2462 ". tag 0x%x\n", pring->ringno,
2463 irsp->un.ulpWord[3]);
2465 if (irsp->ulpBdeCount == 2) {
2466 iocbq->context3 = lpfc_sli_get_buff(phba, pring,
2467 irsp->unsli3.sli3Words[7]);
2468 if (!iocbq->context3)
2469 lpfc_printf_log(phba,
2472 "0344 Ring %d Cannot find "
2473 "buffer for an unsolicited "
2476 irsp->unsli3.sli3Words[7]);
2480 if (irsp->ulpBdeCount != 0 &&
2481 (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
2482 irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
2485 /* search continue save q for same XRI */
2486 list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
2487 if (iocbq->iocb.unsli3.rcvsli3.ox_id ==
2488 saveq->iocb.unsli3.rcvsli3.ox_id) {
2489 list_add_tail(&saveq->list, &iocbq->list);
2495 list_add_tail(&saveq->clist,
2496 &pring->iocb_continue_saveq);
2497 if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
2498 list_del_init(&iocbq->clist);
2500 irsp = &(saveq->iocb);
2504 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
2505 (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
2506 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
2507 Rctl = FC_RCTL_ELS_REQ;
2510 w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
2511 Rctl = w5p->hcsw.Rctl;
2512 Type = w5p->hcsw.Type;
2514 /* Firmware Workaround */
2515 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
2516 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
2517 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
2518 Rctl = FC_RCTL_ELS_REQ;
2520 w5p->hcsw.Rctl = Rctl;
2521 w5p->hcsw.Type = Type;
2525 if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
2526 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2527 "0313 Ring %d handler: unexpected Rctl x%x "
2528 "Type x%x received\n",
2529 pring->ringno, Rctl, Type);
2535 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
2536 * @phba: Pointer to HBA context object.
2537 * @pring: Pointer to driver SLI ring object.
2538 * @prspiocb: Pointer to response iocb object.
2540 * This function looks up the iocb_lookup table to get the command iocb
2541 * corresponding to the given response iocb using the iotag of the
2542 * response iocb. This function is called with the hbalock held.
2543 * This function returns the command iocb object if it finds the command
2544 * iocb else returns NULL.
2546 static struct lpfc_iocbq *
2547 lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
2548 struct lpfc_sli_ring *pring,
2549 struct lpfc_iocbq *prspiocb)
2551 struct lpfc_iocbq *cmd_iocb = NULL;
2554 iotag = prspiocb->iocb.ulpIoTag;
2556 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2557 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2558 list_del_init(&cmd_iocb->list);
2559 if (cmd_iocb->iocb_flag & LPFC_IO_ON_Q) {
2560 pring->txcmplq_cnt--;
2561 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_Q;
2566 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2567 "0317 iotag x%x is out off "
2568 "range: max iotag x%x wd0 x%x\n",
2569 iotag, phba->sli.last_iotag,
2570 *(((uint32_t *) &prspiocb->iocb) + 7));
2575 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2576 * @phba: Pointer to HBA context object.
2577 * @pring: Pointer to driver SLI ring object.
2580 * This function looks up the iocb_lookup table to get the command iocb
2581 * corresponding to the given iotag. This function is called with the
2583 * This function returns the command iocb object if it finds the command
2584 * iocb else returns NULL.
2586 static struct lpfc_iocbq *
2587 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
2588 struct lpfc_sli_ring *pring, uint16_t iotag)
2590 struct lpfc_iocbq *cmd_iocb;
2592 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2593 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2594 list_del_init(&cmd_iocb->list);
2595 if (cmd_iocb->iocb_flag & LPFC_IO_ON_Q) {
2596 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_Q;
2597 pring->txcmplq_cnt--;
2602 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2603 "0372 iotag x%x is out off range: max iotag (x%x)\n",
2604 iotag, phba->sli.last_iotag);
2609 * lpfc_sli_process_sol_iocb - process solicited iocb completion
2610 * @phba: Pointer to HBA context object.
2611 * @pring: Pointer to driver SLI ring object.
2612 * @saveq: Pointer to the response iocb to be processed.
2614 * This function is called by the ring event handler for non-fcp
2615 * rings when there is a new response iocb in the response ring.
2616 * The caller is not required to hold any locks. This function
2617 * gets the command iocb associated with the response iocb and
2618 * calls the completion handler for the command iocb. If there
2619 * is no completion handler, the function will free the resources
2620 * associated with command iocb. If the response iocb is for
2621 * an already aborted command iocb, the status of the completion
2622 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
2623 * This function always returns 1.
2626 lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2627 struct lpfc_iocbq *saveq)
2629 struct lpfc_iocbq *cmdiocbp;
2631 unsigned long iflag;
2633 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
2634 spin_lock_irqsave(&phba->hbalock, iflag);
2635 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
2636 spin_unlock_irqrestore(&phba->hbalock, iflag);
2639 if (cmdiocbp->iocb_cmpl) {
2641 * If an ELS command failed send an event to mgmt
2644 if (saveq->iocb.ulpStatus &&
2645 (pring->ringno == LPFC_ELS_RING) &&
2646 (cmdiocbp->iocb.ulpCommand ==
2647 CMD_ELS_REQUEST64_CR))
2648 lpfc_send_els_failure_event(phba,
2652 * Post all ELS completions to the worker thread.
2653 * All other are passed to the completion callback.
2655 if (pring->ringno == LPFC_ELS_RING) {
2656 if ((phba->sli_rev < LPFC_SLI_REV4) &&
2657 (cmdiocbp->iocb_flag &
2658 LPFC_DRIVER_ABORTED)) {
2659 spin_lock_irqsave(&phba->hbalock,
2661 cmdiocbp->iocb_flag &=
2662 ~LPFC_DRIVER_ABORTED;
2663 spin_unlock_irqrestore(&phba->hbalock,
2665 saveq->iocb.ulpStatus =
2666 IOSTAT_LOCAL_REJECT;
2667 saveq->iocb.un.ulpWord[4] =
2670 /* Firmware could still be in progress
2671 * of DMAing payload, so don't free data
2672 * buffer till after a hbeat.
2674 spin_lock_irqsave(&phba->hbalock,
2676 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
2677 spin_unlock_irqrestore(&phba->hbalock,
2680 if (phba->sli_rev == LPFC_SLI_REV4) {
2681 if (saveq->iocb_flag &
2682 LPFC_EXCHANGE_BUSY) {
2683 /* Set cmdiocb flag for the
2684 * exchange busy so sgl (xri)
2685 * will not be released until
2686 * the abort xri is received
2690 &phba->hbalock, iflag);
2691 cmdiocbp->iocb_flag |=
2693 spin_unlock_irqrestore(
2694 &phba->hbalock, iflag);
2696 if (cmdiocbp->iocb_flag &
2697 LPFC_DRIVER_ABORTED) {
2699 * Clear LPFC_DRIVER_ABORTED
2700 * bit in case it was driver
2704 &phba->hbalock, iflag);
2705 cmdiocbp->iocb_flag &=
2706 ~LPFC_DRIVER_ABORTED;
2707 spin_unlock_irqrestore(
2708 &phba->hbalock, iflag);
2709 cmdiocbp->iocb.ulpStatus =
2710 IOSTAT_LOCAL_REJECT;
2711 cmdiocbp->iocb.un.ulpWord[4] =
2712 IOERR_ABORT_REQUESTED;
2714 * For SLI4, irsiocb contains
2715 * NO_XRI in sli_xritag, it
2716 * shall not affect releasing
2717 * sgl (xri) process.
2719 saveq->iocb.ulpStatus =
2720 IOSTAT_LOCAL_REJECT;
2721 saveq->iocb.un.ulpWord[4] =
2724 &phba->hbalock, iflag);
2726 LPFC_DELAY_MEM_FREE;
2727 spin_unlock_irqrestore(
2728 &phba->hbalock, iflag);
2732 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
2734 lpfc_sli_release_iocbq(phba, cmdiocbp);
2737 * Unknown initiating command based on the response iotag.
2738 * This could be the case on the ELS ring because of
2741 if (pring->ringno != LPFC_ELS_RING) {
2743 * Ring <ringno> handler: unexpected completion IoTag
2746 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2747 "0322 Ring %d handler: "
2748 "unexpected completion IoTag x%x "
2749 "Data: x%x x%x x%x x%x\n",
2751 saveq->iocb.ulpIoTag,
2752 saveq->iocb.ulpStatus,
2753 saveq->iocb.un.ulpWord[4],
2754 saveq->iocb.ulpCommand,
2755 saveq->iocb.ulpContext);
2763 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
2764 * @phba: Pointer to HBA context object.
2765 * @pring: Pointer to driver SLI ring object.
2767 * This function is called from the iocb ring event handlers when
2768 * put pointer is ahead of the get pointer for a ring. This function signal
2769 * an error attention condition to the worker thread and the worker
2770 * thread will transition the HBA to offline state.
2773 lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
2775 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2777 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
2778 * rsp ring <portRspMax>
2780 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2781 "0312 Ring %d handler: portRspPut %d "
2782 "is bigger than rsp ring %d\n",
2783 pring->ringno, le32_to_cpu(pgp->rspPutInx),
2786 phba->link_state = LPFC_HBA_ERROR;
2789 * All error attention handlers are posted to
2792 phba->work_ha |= HA_ERATT;
2793 phba->work_hs = HS_FFER3;
2795 lpfc_worker_wake_up(phba);
2801 * lpfc_poll_eratt - Error attention polling timer timeout handler
2802 * @ptr: Pointer to address of HBA context object.
2804 * This function is invoked by the Error Attention polling timer when the
2805 * timer times out. It will check the SLI Error Attention register for
2806 * possible attention events. If so, it will post an Error Attention event
2807 * and wake up worker thread to process it. Otherwise, it will set up the
2808 * Error Attention polling timer for the next poll.
2810 void lpfc_poll_eratt(unsigned long ptr)
2812 struct lpfc_hba *phba;
2815 phba = (struct lpfc_hba *)ptr;
2817 /* Check chip HA register for error event */
2818 eratt = lpfc_sli_check_eratt(phba);
2821 /* Tell the worker thread there is work to do */
2822 lpfc_worker_wake_up(phba);
2824 /* Restart the timer for next eratt poll */
2825 mod_timer(&phba->eratt_poll, jiffies +
2826 HZ * LPFC_ERATT_POLL_INTERVAL);
2832 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
2833 * @phba: Pointer to HBA context object.
2834 * @pring: Pointer to driver SLI ring object.
2835 * @mask: Host attention register mask for this ring.
2837 * This function is called from the interrupt context when there is a ring
2838 * event for the fcp ring. The caller does not hold any lock.
2839 * The function processes each response iocb in the response ring until it
2840 * finds an iocb with LE bit set and chains all the iocbs up to the iocb with
2841 * LE bit set. The function will call the completion handler of the command iocb
2842 * if the response iocb indicates a completion for a command iocb or it is
2843 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
2844 * function if this is an unsolicited iocb.
2845 * This routine presumes LPFC_FCP_RING handling and doesn't bother
2846 * to check it explicitly.
2849 lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
2850 struct lpfc_sli_ring *pring, uint32_t mask)
2852 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2853 IOCB_t *irsp = NULL;
2854 IOCB_t *entry = NULL;
2855 struct lpfc_iocbq *cmdiocbq = NULL;
2856 struct lpfc_iocbq rspiocbq;
2858 uint32_t portRspPut, portRspMax;
2860 lpfc_iocb_type type;
2861 unsigned long iflag;
2862 uint32_t rsp_cmpl = 0;
2864 spin_lock_irqsave(&phba->hbalock, iflag);
2865 pring->stats.iocb_event++;
2868 * The next available response entry should never exceed the maximum
2869 * entries. If it does, treat it as an adapter hardware error.
2871 portRspMax = pring->numRiocb;
2872 portRspPut = le32_to_cpu(pgp->rspPutInx);
2873 if (unlikely(portRspPut >= portRspMax)) {
2874 lpfc_sli_rsp_pointers_error(phba, pring);
2875 spin_unlock_irqrestore(&phba->hbalock, iflag);
2878 if (phba->fcp_ring_in_use) {
2879 spin_unlock_irqrestore(&phba->hbalock, iflag);
2882 phba->fcp_ring_in_use = 1;
2885 while (pring->rspidx != portRspPut) {
2887 * Fetch an entry off the ring and copy it into a local data
2888 * structure. The copy involves a byte-swap since the
2889 * network byte order and pci byte orders are different.
2891 entry = lpfc_resp_iocb(phba, pring);
2892 phba->last_completion_time = jiffies;
2894 if (++pring->rspidx >= portRspMax)
2897 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
2898 (uint32_t *) &rspiocbq.iocb,
2899 phba->iocb_rsp_size);
2900 INIT_LIST_HEAD(&(rspiocbq.list));
2901 irsp = &rspiocbq.iocb;
2903 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
2904 pring->stats.iocb_rsp++;
2907 if (unlikely(irsp->ulpStatus)) {
2909 * If resource errors reported from HBA, reduce
2910 * queuedepths of the SCSI device.
2912 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
2913 (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) {
2914 spin_unlock_irqrestore(&phba->hbalock, iflag);
2915 phba->lpfc_rampdown_queue_depth(phba);
2916 spin_lock_irqsave(&phba->hbalock, iflag);
2919 /* Rsp ring <ringno> error: IOCB */
2920 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2921 "0336 Rsp Ring %d error: IOCB Data: "
2922 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
2924 irsp->un.ulpWord[0],
2925 irsp->un.ulpWord[1],
2926 irsp->un.ulpWord[2],
2927 irsp->un.ulpWord[3],
2928 irsp->un.ulpWord[4],
2929 irsp->un.ulpWord[5],
2930 *(uint32_t *)&irsp->un1,
2931 *((uint32_t *)&irsp->un1 + 1));
2935 case LPFC_ABORT_IOCB:
2938 * Idle exchange closed via ABTS from port. No iocb
2939 * resources need to be recovered.
2941 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
2942 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2943 "0333 IOCB cmd 0x%x"
2944 " processed. Skipping"
2950 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
2952 if (unlikely(!cmdiocbq))
2954 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED)
2955 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
2956 if (cmdiocbq->iocb_cmpl) {
2957 spin_unlock_irqrestore(&phba->hbalock, iflag);
2958 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
2960 spin_lock_irqsave(&phba->hbalock, iflag);
2963 case LPFC_UNSOL_IOCB:
2964 spin_unlock_irqrestore(&phba->hbalock, iflag);
2965 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
2966 spin_lock_irqsave(&phba->hbalock, iflag);
2969 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
2970 char adaptermsg[LPFC_MAX_ADPTMSG];
2971 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
2972 memcpy(&adaptermsg[0], (uint8_t *) irsp,
2974 dev_warn(&((phba->pcidev)->dev),
2976 phba->brd_no, adaptermsg);
2978 /* Unknown IOCB command */
2979 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2980 "0334 Unknown IOCB command "
2981 "Data: x%x, x%x x%x x%x x%x\n",
2982 type, irsp->ulpCommand,
2991 * The response IOCB has been processed. Update the ring
2992 * pointer in SLIM. If the port response put pointer has not
2993 * been updated, sync the pgp->rspPutInx and fetch the new port
2994 * response put pointer.
2996 writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx);
2998 if (pring->rspidx == portRspPut)
2999 portRspPut = le32_to_cpu(pgp->rspPutInx);
3002 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
3003 pring->stats.iocb_rsp_full++;
3004 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3005 writel(status, phba->CAregaddr);
3006 readl(phba->CAregaddr);
3008 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3009 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3010 pring->stats.iocb_cmd_empty++;
3012 /* Force update of the local copy of cmdGetInx */
3013 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
3014 lpfc_sli_resume_iocb(phba, pring);
3016 if ((pring->lpfc_sli_cmd_available))
3017 (pring->lpfc_sli_cmd_available) (phba, pring);
3021 phba->fcp_ring_in_use = 0;
3022 spin_unlock_irqrestore(&phba->hbalock, iflag);
3027 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
3028 * @phba: Pointer to HBA context object.
3029 * @pring: Pointer to driver SLI ring object.
3030 * @rspiocbp: Pointer to driver response IOCB object.
3032 * This function is called from the worker thread when there is a slow-path
3033 * response IOCB to process. This function chains all the response iocbs until
3034 * seeing the iocb with the LE bit set. The function will call
3035 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
3036 * completion of a command iocb. The function will call the
3037 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
3038 * The function frees the resources or calls the completion handler if this
3039 * iocb is an abort completion. The function returns NULL when the response
3040 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
3041 * this function shall chain the iocb on to the iocb_continueq and return the
3042 * response iocb passed in.
3044 static struct lpfc_iocbq *
3045 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3046 struct lpfc_iocbq *rspiocbp)
3048 struct lpfc_iocbq *saveq;
3049 struct lpfc_iocbq *cmdiocbp;
3050 struct lpfc_iocbq *next_iocb;
3051 IOCB_t *irsp = NULL;
3052 uint32_t free_saveq;
3053 uint8_t iocb_cmd_type;
3054 lpfc_iocb_type type;
3055 unsigned long iflag;
3058 spin_lock_irqsave(&phba->hbalock, iflag);
3059 /* First add the response iocb to the countinueq list */
3060 list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
3061 pring->iocb_continueq_cnt++;
3063 /* Now, determine whether the list is completed for processing */
3064 irsp = &rspiocbp->iocb;
3067 * By default, the driver expects to free all resources
3068 * associated with this iocb completion.
3071 saveq = list_get_first(&pring->iocb_continueq,
3072 struct lpfc_iocbq, list);
3073 irsp = &(saveq->iocb);
3074 list_del_init(&pring->iocb_continueq);
3075 pring->iocb_continueq_cnt = 0;
3077 pring->stats.iocb_rsp++;
3080 * If resource errors reported from HBA, reduce
3081 * queuedepths of the SCSI device.
3083 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3084 (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) {
3085 spin_unlock_irqrestore(&phba->hbalock, iflag);
3086 phba->lpfc_rampdown_queue_depth(phba);
3087 spin_lock_irqsave(&phba->hbalock, iflag);
3090 if (irsp->ulpStatus) {
3091 /* Rsp ring <ringno> error: IOCB */
3092 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3093 "0328 Rsp Ring %d error: "
3098 "x%x x%x x%x x%x\n",
3100 irsp->un.ulpWord[0],
3101 irsp->un.ulpWord[1],
3102 irsp->un.ulpWord[2],
3103 irsp->un.ulpWord[3],
3104 irsp->un.ulpWord[4],
3105 irsp->un.ulpWord[5],
3106 *(((uint32_t *) irsp) + 6),
3107 *(((uint32_t *) irsp) + 7),
3108 *(((uint32_t *) irsp) + 8),
3109 *(((uint32_t *) irsp) + 9),
3110 *(((uint32_t *) irsp) + 10),
3111 *(((uint32_t *) irsp) + 11),
3112 *(((uint32_t *) irsp) + 12),
3113 *(((uint32_t *) irsp) + 13),
3114 *(((uint32_t *) irsp) + 14),
3115 *(((uint32_t *) irsp) + 15));
3119 * Fetch the IOCB command type and call the correct completion
3120 * routine. Solicited and Unsolicited IOCBs on the ELS ring
3121 * get freed back to the lpfc_iocb_list by the discovery
3124 iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
3125 type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
3128 spin_unlock_irqrestore(&phba->hbalock, iflag);
3129 rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
3130 spin_lock_irqsave(&phba->hbalock, iflag);
3133 case LPFC_UNSOL_IOCB:
3134 spin_unlock_irqrestore(&phba->hbalock, iflag);
3135 rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
3136 spin_lock_irqsave(&phba->hbalock, iflag);
3141 case LPFC_ABORT_IOCB:
3143 if (irsp->ulpCommand != CMD_XRI_ABORTED_CX)
3144 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
3147 /* Call the specified completion routine */
3148 if (cmdiocbp->iocb_cmpl) {
3149 spin_unlock_irqrestore(&phba->hbalock,
3151 (cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
3153 spin_lock_irqsave(&phba->hbalock,
3156 __lpfc_sli_release_iocbq(phba,
3161 case LPFC_UNKNOWN_IOCB:
3162 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3163 char adaptermsg[LPFC_MAX_ADPTMSG];
3164 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3165 memcpy(&adaptermsg[0], (uint8_t *)irsp,
3167 dev_warn(&((phba->pcidev)->dev),
3169 phba->brd_no, adaptermsg);
3171 /* Unknown IOCB command */
3172 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3173 "0335 Unknown IOCB "
3174 "command Data: x%x "
3185 list_for_each_entry_safe(rspiocbp, next_iocb,
3186 &saveq->list, list) {
3187 list_del(&rspiocbp->list);
3188 __lpfc_sli_release_iocbq(phba, rspiocbp);
3190 __lpfc_sli_release_iocbq(phba, saveq);
3194 spin_unlock_irqrestore(&phba->hbalock, iflag);
3199 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
3200 * @phba: Pointer to HBA context object.
3201 * @pring: Pointer to driver SLI ring object.
3202 * @mask: Host attention register mask for this ring.
3204 * This routine wraps the actual slow_ring event process routine from the
3205 * API jump table function pointer from the lpfc_hba struct.
3208 lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
3209 struct lpfc_sli_ring *pring, uint32_t mask)
3211 phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
3215 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
3216 * @phba: Pointer to HBA context object.
3217 * @pring: Pointer to driver SLI ring object.
3218 * @mask: Host attention register mask for this ring.
3220 * This function is called from the worker thread when there is a ring event
3221 * for non-fcp rings. The caller does not hold any lock. The function will
3222 * remove each response iocb in the response ring and calls the handle
3223 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3226 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
3227 struct lpfc_sli_ring *pring, uint32_t mask)
3229 struct lpfc_pgp *pgp;
3231 IOCB_t *irsp = NULL;
3232 struct lpfc_iocbq *rspiocbp = NULL;
3233 uint32_t portRspPut, portRspMax;
3234 unsigned long iflag;
3237 pgp = &phba->port_gp[pring->ringno];
3238 spin_lock_irqsave(&phba->hbalock, iflag);
3239 pring->stats.iocb_event++;
3242 * The next available response entry should never exceed the maximum
3243 * entries. If it does, treat it as an adapter hardware error.
3245 portRspMax = pring->numRiocb;
3246 portRspPut = le32_to_cpu(pgp->rspPutInx);
3247 if (portRspPut >= portRspMax) {
3249 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
3250 * rsp ring <portRspMax>
3252 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3253 "0303 Ring %d handler: portRspPut %d "
3254 "is bigger than rsp ring %d\n",
3255 pring->ringno, portRspPut, portRspMax);
3257 phba->link_state = LPFC_HBA_ERROR;
3258 spin_unlock_irqrestore(&phba->hbalock, iflag);
3260 phba->work_hs = HS_FFER3;
3261 lpfc_handle_eratt(phba);
3267 while (pring->rspidx != portRspPut) {
3269 * Build a completion list and call the appropriate handler.
3270 * The process is to get the next available response iocb, get
3271 * a free iocb from the list, copy the response data into the
3272 * free iocb, insert to the continuation list, and update the
3273 * next response index to slim. This process makes response
3274 * iocb's in the ring available to DMA as fast as possible but
3275 * pays a penalty for a copy operation. Since the iocb is
3276 * only 32 bytes, this penalty is considered small relative to
3277 * the PCI reads for register values and a slim write. When
3278 * the ulpLe field is set, the entire Command has been
3281 entry = lpfc_resp_iocb(phba, pring);
3283 phba->last_completion_time = jiffies;
3284 rspiocbp = __lpfc_sli_get_iocbq(phba);
3285 if (rspiocbp == NULL) {
3286 printk(KERN_ERR "%s: out of buffers! Failing "
3287 "completion.\n", __func__);
3291 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
3292 phba->iocb_rsp_size);
3293 irsp = &rspiocbp->iocb;
3295 if (++pring->rspidx >= portRspMax)
3298 if (pring->ringno == LPFC_ELS_RING) {
3299 lpfc_debugfs_slow_ring_trc(phba,
3300 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
3301 *(((uint32_t *) irsp) + 4),
3302 *(((uint32_t *) irsp) + 6),
3303 *(((uint32_t *) irsp) + 7));
3306 writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx);
3308 spin_unlock_irqrestore(&phba->hbalock, iflag);
3309 /* Handle the response IOCB */
3310 rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
3311 spin_lock_irqsave(&phba->hbalock, iflag);
3314 * If the port response put pointer has not been updated, sync
3315 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
3316 * response put pointer.
3318 if (pring->rspidx == portRspPut) {
3319 portRspPut = le32_to_cpu(pgp->rspPutInx);
3321 } /* while (pring->rspidx != portRspPut) */
3323 if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
3324 /* At least one response entry has been freed */
3325 pring->stats.iocb_rsp_full++;
3326 /* SET RxRE_RSP in Chip Att register */
3327 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3328 writel(status, phba->CAregaddr);
3329 readl(phba->CAregaddr); /* flush */
3331 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3332 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3333 pring->stats.iocb_cmd_empty++;
3335 /* Force update of the local copy of cmdGetInx */
3336 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
3337 lpfc_sli_resume_iocb(phba, pring);
3339 if ((pring->lpfc_sli_cmd_available))
3340 (pring->lpfc_sli_cmd_available) (phba, pring);
3344 spin_unlock_irqrestore(&phba->hbalock, iflag);
3349 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
3350 * @phba: Pointer to HBA context object.
3351 * @pring: Pointer to driver SLI ring object.
3352 * @mask: Host attention register mask for this ring.
3354 * This function is called from the worker thread when there is a pending
3355 * ELS response iocb on the driver internal slow-path response iocb worker
3356 * queue. The caller does not hold any lock. The function will remove each
3357 * response iocb from the response worker queue and calls the handle
3358 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3361 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
3362 struct lpfc_sli_ring *pring, uint32_t mask)
3364 struct lpfc_iocbq *irspiocbq;
3365 struct hbq_dmabuf *dmabuf;
3366 struct lpfc_cq_event *cq_event;
3367 unsigned long iflag;
3369 spin_lock_irqsave(&phba->hbalock, iflag);
3370 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
3371 spin_unlock_irqrestore(&phba->hbalock, iflag);
3372 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
3373 /* Get the response iocb from the head of work queue */
3374 spin_lock_irqsave(&phba->hbalock, iflag);
3375 list_remove_head(&phba->sli4_hba.sp_queue_event,
3376 cq_event, struct lpfc_cq_event, list);
3377 spin_unlock_irqrestore(&phba->hbalock, iflag);
3379 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
3380 case CQE_CODE_COMPL_WQE:
3381 irspiocbq = container_of(cq_event, struct lpfc_iocbq,
3383 /* Translate ELS WCQE to response IOCBQ */
3384 irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba,
3387 lpfc_sli_sp_handle_rspiocb(phba, pring,
3390 case CQE_CODE_RECEIVE:
3391 case CQE_CODE_RECEIVE_V1:
3392 dmabuf = container_of(cq_event, struct hbq_dmabuf,
3394 lpfc_sli4_handle_received_buffer(phba, dmabuf);
3403 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
3404 * @phba: Pointer to HBA context object.
3405 * @pring: Pointer to driver SLI ring object.
3407 * This function aborts all iocbs in the given ring and frees all the iocb
3408 * objects in txq. This function issues an abort iocb for all the iocb commands
3409 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3410 * the return of this function. The caller is not required to hold any locks.
3413 lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3415 LIST_HEAD(completions);
3416 struct lpfc_iocbq *iocb, *next_iocb;
3418 if (pring->ringno == LPFC_ELS_RING) {
3419 lpfc_fabric_abort_hba(phba);
3422 /* Error everything on txq and txcmplq
3425 spin_lock_irq(&phba->hbalock);
3426 list_splice_init(&pring->txq, &completions);
3429 /* Next issue ABTS for everything on the txcmplq */
3430 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3431 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3433 spin_unlock_irq(&phba->hbalock);
3435 /* Cancel all the IOCBs from the completions list */
3436 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3441 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
3442 * @phba: Pointer to HBA context object.
3444 * This function flushes all iocbs in the fcp ring and frees all the iocb
3445 * objects in txq and txcmplq. This function will not issue abort iocbs
3446 * for all the iocb commands in txcmplq, they will just be returned with
3447 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3448 * slot has been permanently disabled.
3451 lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba)
3455 struct lpfc_sli *psli = &phba->sli;
3456 struct lpfc_sli_ring *pring;
3458 /* Currently, only one fcp ring */
3459 pring = &psli->ring[psli->fcp_ring];
3461 spin_lock_irq(&phba->hbalock);
3462 /* Retrieve everything on txq */
3463 list_splice_init(&pring->txq, &txq);
3466 /* Retrieve everything on the txcmplq */
3467 list_splice_init(&pring->txcmplq, &txcmplq);
3468 pring->txcmplq_cnt = 0;
3469 spin_unlock_irq(&phba->hbalock);
3472 lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
3475 /* Flush the txcmpq */
3476 lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
3481 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
3482 * @phba: Pointer to HBA context object.
3483 * @mask: Bit mask to be checked.
3485 * This function reads the host status register and compares
3486 * with the provided bit mask to check if HBA completed
3487 * the restart. This function will wait in a loop for the
3488 * HBA to complete restart. If the HBA does not restart within
3489 * 15 iterations, the function will reset the HBA again. The
3490 * function returns 1 when HBA fail to restart otherwise returns
3494 lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
3500 /* Read the HBA Host Status Register */
3501 if (lpfc_readl(phba->HSregaddr, &status))
3505 * Check status register every 100ms for 5 retries, then every
3506 * 500ms for 5, then every 2.5 sec for 5, then reset board and
3507 * every 2.5 sec for 4.
3508 * Break our of the loop if errors occurred during init.
3510 while (((status & mask) != mask) &&
3511 !(status & HS_FFERM) &&
3523 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3524 lpfc_sli_brdrestart(phba);
3526 /* Read the HBA Host Status Register */
3527 if (lpfc_readl(phba->HSregaddr, &status)) {
3533 /* Check to see if any errors occurred during init */
3534 if ((status & HS_FFERM) || (i >= 20)) {
3535 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3536 "2751 Adapter failed to restart, "
3537 "status reg x%x, FW Data: A8 x%x AC x%x\n",
3539 readl(phba->MBslimaddr + 0xa8),
3540 readl(phba->MBslimaddr + 0xac));
3541 phba->link_state = LPFC_HBA_ERROR;
3549 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3550 * @phba: Pointer to HBA context object.
3551 * @mask: Bit mask to be checked.
3553 * This function checks the host status register to check if HBA is
3554 * ready. This function will wait in a loop for the HBA to be ready
3555 * If the HBA is not ready , the function will will reset the HBA PCI
3556 * function again. The function returns 1 when HBA fail to be ready
3557 * otherwise returns zero.
3560 lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
3565 /* Read the HBA Host Status Register */
3566 status = lpfc_sli4_post_status_check(phba);
3569 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3570 lpfc_sli_brdrestart(phba);
3571 status = lpfc_sli4_post_status_check(phba);
3574 /* Check to see if any errors occurred during init */
3576 phba->link_state = LPFC_HBA_ERROR;
3579 phba->sli4_hba.intr_enable = 0;
3585 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3586 * @phba: Pointer to HBA context object.
3587 * @mask: Bit mask to be checked.
3589 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3590 * from the API jump table function pointer from the lpfc_hba struct.
3593 lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
3595 return phba->lpfc_sli_brdready(phba, mask);
3598 #define BARRIER_TEST_PATTERN (0xdeadbeef)
3601 * lpfc_reset_barrier - Make HBA ready for HBA reset
3602 * @phba: Pointer to HBA context object.
3604 * This function is called before resetting an HBA. This function is called
3605 * with hbalock held and requests HBA to quiesce DMAs before a reset.
3607 void lpfc_reset_barrier(struct lpfc_hba *phba)
3609 uint32_t __iomem *resp_buf;
3610 uint32_t __iomem *mbox_buf;
3611 volatile uint32_t mbox;
3612 uint32_t hc_copy, ha_copy, resp_data;
3616 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
3617 if (hdrtype != 0x80 ||
3618 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
3619 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
3623 * Tell the other part of the chip to suspend temporarily all
3626 resp_buf = phba->MBslimaddr;
3628 /* Disable the error attention */
3629 if (lpfc_readl(phba->HCregaddr, &hc_copy))
3631 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
3632 readl(phba->HCregaddr); /* flush */
3633 phba->link_flag |= LS_IGNORE_ERATT;
3635 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3637 if (ha_copy & HA_ERATT) {
3638 /* Clear Chip error bit */
3639 writel(HA_ERATT, phba->HAregaddr);
3640 phba->pport->stopped = 1;
3644 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
3645 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
3647 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
3648 mbox_buf = phba->MBslimaddr;
3649 writel(mbox, mbox_buf);
3651 for (i = 0; i < 50; i++) {
3652 if (lpfc_readl((resp_buf + 1), &resp_data))
3654 if (resp_data != ~(BARRIER_TEST_PATTERN))
3660 if (lpfc_readl((resp_buf + 1), &resp_data))
3662 if (resp_data != ~(BARRIER_TEST_PATTERN)) {
3663 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
3664 phba->pport->stopped)
3670 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
3672 for (i = 0; i < 500; i++) {
3673 if (lpfc_readl(resp_buf, &resp_data))
3675 if (resp_data != mbox)
3684 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3686 if (!(ha_copy & HA_ERATT))
3692 if (readl(phba->HAregaddr) & HA_ERATT) {
3693 writel(HA_ERATT, phba->HAregaddr);
3694 phba->pport->stopped = 1;
3698 phba->link_flag &= ~LS_IGNORE_ERATT;
3699 writel(hc_copy, phba->HCregaddr);
3700 readl(phba->HCregaddr); /* flush */
3704 * lpfc_sli_brdkill - Issue a kill_board mailbox command
3705 * @phba: Pointer to HBA context object.
3707 * This function issues a kill_board mailbox command and waits for
3708 * the error attention interrupt. This function is called for stopping
3709 * the firmware processing. The caller is not required to hold any
3710 * locks. This function calls lpfc_hba_down_post function to free
3711 * any pending commands after the kill. The function will return 1 when it
3712 * fails to kill the board else will return 0.
3715 lpfc_sli_brdkill(struct lpfc_hba *phba)
3717 struct lpfc_sli *psli;
3727 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3728 "0329 Kill HBA Data: x%x x%x\n",
3729 phba->pport->port_state, psli->sli_flag);
3731 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3735 /* Disable the error attention */
3736 spin_lock_irq(&phba->hbalock);
3737 if (lpfc_readl(phba->HCregaddr, &status)) {
3738 spin_unlock_irq(&phba->hbalock);
3739 mempool_free(pmb, phba->mbox_mem_pool);
3742 status &= ~HC_ERINT_ENA;
3743 writel(status, phba->HCregaddr);
3744 readl(phba->HCregaddr); /* flush */
3745 phba->link_flag |= LS_IGNORE_ERATT;
3746 spin_unlock_irq(&phba->hbalock);
3748 lpfc_kill_board(phba, pmb);
3749 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3750 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3752 if (retval != MBX_SUCCESS) {
3753 if (retval != MBX_BUSY)
3754 mempool_free(pmb, phba->mbox_mem_pool);
3755 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3756 "2752 KILL_BOARD command failed retval %d\n",
3758 spin_lock_irq(&phba->hbalock);
3759 phba->link_flag &= ~LS_IGNORE_ERATT;
3760 spin_unlock_irq(&phba->hbalock);
3764 spin_lock_irq(&phba->hbalock);
3765 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
3766 spin_unlock_irq(&phba->hbalock);
3768 mempool_free(pmb, phba->mbox_mem_pool);
3770 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
3771 * attention every 100ms for 3 seconds. If we don't get ERATT after
3772 * 3 seconds we still set HBA_ERROR state because the status of the
3773 * board is now undefined.
3775 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3777 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
3779 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3783 del_timer_sync(&psli->mbox_tmo);
3784 if (ha_copy & HA_ERATT) {
3785 writel(HA_ERATT, phba->HAregaddr);
3786 phba->pport->stopped = 1;
3788 spin_lock_irq(&phba->hbalock);
3789 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
3790 psli->mbox_active = NULL;
3791 phba->link_flag &= ~LS_IGNORE_ERATT;
3792 spin_unlock_irq(&phba->hbalock);
3794 lpfc_hba_down_post(phba);
3795 phba->link_state = LPFC_HBA_ERROR;
3797 return ha_copy & HA_ERATT ? 0 : 1;
3801 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
3802 * @phba: Pointer to HBA context object.
3804 * This function resets the HBA by writing HC_INITFF to the control
3805 * register. After the HBA resets, this function resets all the iocb ring
3806 * indices. This function disables PCI layer parity checking during
3808 * This function returns 0 always.
3809 * The caller is not required to hold any locks.
3812 lpfc_sli_brdreset(struct lpfc_hba *phba)
3814 struct lpfc_sli *psli;
3815 struct lpfc_sli_ring *pring;
3822 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3823 "0325 Reset HBA Data: x%x x%x\n",
3824 phba->pport->port_state, psli->sli_flag);
3826 /* perform board reset */
3827 phba->fc_eventTag = 0;
3828 phba->link_events = 0;
3829 phba->pport->fc_myDID = 0;
3830 phba->pport->fc_prevDID = 0;
3832 /* Turn off parity checking and serr during the physical reset */
3833 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
3834 pci_write_config_word(phba->pcidev, PCI_COMMAND,
3836 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
3838 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
3840 /* Now toggle INITFF bit in the Host Control Register */
3841 writel(HC_INITFF, phba->HCregaddr);
3843 readl(phba->HCregaddr); /* flush */
3844 writel(0, phba->HCregaddr);
3845 readl(phba->HCregaddr); /* flush */
3847 /* Restore PCI cmd register */
3848 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
3850 /* Initialize relevant SLI info */
3851 for (i = 0; i < psli->num_rings; i++) {
3852 pring = &psli->ring[i];
3855 pring->next_cmdidx = 0;
3856 pring->local_getidx = 0;
3858 pring->missbufcnt = 0;
3861 phba->link_state = LPFC_WARM_START;
3866 * lpfc_sli4_brdreset - Reset a sli-4 HBA
3867 * @phba: Pointer to HBA context object.
3869 * This function resets a SLI4 HBA. This function disables PCI layer parity
3870 * checking during resets the device. The caller is not required to hold
3873 * This function returns 0 always.
3876 lpfc_sli4_brdreset(struct lpfc_hba *phba)
3878 struct lpfc_sli *psli = &phba->sli;
3882 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3883 "0295 Reset HBA Data: x%x x%x\n",
3884 phba->pport->port_state, psli->sli_flag);
3886 /* perform board reset */
3887 phba->fc_eventTag = 0;
3888 phba->link_events = 0;
3889 phba->pport->fc_myDID = 0;
3890 phba->pport->fc_prevDID = 0;
3892 spin_lock_irq(&phba->hbalock);
3893 psli->sli_flag &= ~(LPFC_PROCESS_LA);
3894 phba->fcf.fcf_flag = 0;
3895 spin_unlock_irq(&phba->hbalock);
3897 /* Now physically reset the device */
3898 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3899 "0389 Performing PCI function reset!\n");
3901 /* Turn off parity checking and serr during the physical reset */
3902 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
3903 pci_write_config_word(phba->pcidev, PCI_COMMAND, (cfg_value &
3904 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
3906 /* Perform FCoE PCI function reset */
3907 lpfc_sli4_queue_destroy(phba);
3908 lpfc_pci_function_reset(phba);
3910 /* Restore PCI cmd register */
3911 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
3917 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
3918 * @phba: Pointer to HBA context object.
3920 * This function is called in the SLI initialization code path to
3921 * restart the HBA. The caller is not required to hold any lock.
3922 * This function writes MBX_RESTART mailbox command to the SLIM and
3923 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
3924 * function to free any pending commands. The function enables
3925 * POST only during the first initialization. The function returns zero.
3926 * The function does not guarantee completion of MBX_RESTART mailbox
3927 * command before the return of this function.
3930 lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
3933 struct lpfc_sli *psli;
3934 volatile uint32_t word0;
3935 void __iomem *to_slim;
3936 uint32_t hba_aer_enabled;
3938 spin_lock_irq(&phba->hbalock);
3940 /* Take PCIe device Advanced Error Reporting (AER) state */
3941 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
3946 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3947 "0337 Restart HBA Data: x%x x%x\n",
3948 phba->pport->port_state, psli->sli_flag);
3951 mb = (MAILBOX_t *) &word0;
3952 mb->mbxCommand = MBX_RESTART;
3955 lpfc_reset_barrier(phba);
3957 to_slim = phba->MBslimaddr;
3958 writel(*(uint32_t *) mb, to_slim);
3959 readl(to_slim); /* flush */
3961 /* Only skip post after fc_ffinit is completed */
3962 if (phba->pport->port_state)
3963 word0 = 1; /* This is really setting up word1 */
3965 word0 = 0; /* This is really setting up word1 */
3966 to_slim = phba->MBslimaddr + sizeof (uint32_t);
3967 writel(*(uint32_t *) mb, to_slim);
3968 readl(to_slim); /* flush */
3970 lpfc_sli_brdreset(phba);
3971 phba->pport->stopped = 0;
3972 phba->link_state = LPFC_INIT_START;
3974 spin_unlock_irq(&phba->hbalock);
3976 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
3977 psli->stats_start = get_seconds();
3979 /* Give the INITFF and Post time to settle. */
3982 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
3983 if (hba_aer_enabled)
3984 pci_disable_pcie_error_reporting(phba->pcidev);
3986 lpfc_hba_down_post(phba);
3992 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
3993 * @phba: Pointer to HBA context object.
3995 * This function is called in the SLI initialization code path to restart
3996 * a SLI4 HBA. The caller is not required to hold any lock.
3997 * At the end of the function, it calls lpfc_hba_down_post function to
3998 * free any pending commands.
4001 lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
4003 struct lpfc_sli *psli = &phba->sli;
4004 uint32_t hba_aer_enabled;
4007 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4008 "0296 Restart HBA Data: x%x x%x\n",
4009 phba->pport->port_state, psli->sli_flag);
4011 /* Take PCIe device Advanced Error Reporting (AER) state */
4012 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4014 lpfc_sli4_brdreset(phba);
4016 spin_lock_irq(&phba->hbalock);
4017 phba->pport->stopped = 0;
4018 phba->link_state = LPFC_INIT_START;
4020 spin_unlock_irq(&phba->hbalock);
4022 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4023 psli->stats_start = get_seconds();
4025 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4026 if (hba_aer_enabled)
4027 pci_disable_pcie_error_reporting(phba->pcidev);
4029 lpfc_hba_down_post(phba);
4035 * lpfc_sli_brdrestart - Wrapper func for restarting hba
4036 * @phba: Pointer to HBA context object.
4038 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
4039 * API jump table function pointer from the lpfc_hba struct.
4042 lpfc_sli_brdrestart(struct lpfc_hba *phba)
4044 return phba->lpfc_sli_brdrestart(phba);
4048 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
4049 * @phba: Pointer to HBA context object.
4051 * This function is called after a HBA restart to wait for successful
4052 * restart of the HBA. Successful restart of the HBA is indicated by
4053 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
4054 * iteration, the function will restart the HBA again. The function returns
4055 * zero if HBA successfully restarted else returns negative error code.
4058 lpfc_sli_chipset_init(struct lpfc_hba *phba)
4060 uint32_t status, i = 0;
4062 /* Read the HBA Host Status Register */
4063 if (lpfc_readl(phba->HSregaddr, &status))
4066 /* Check status register to see what current state is */
4068 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
4070 /* Check every 10ms for 10 retries, then every 100ms for 90
4071 * retries, then every 1 sec for 50 retires for a total of
4072 * ~60 seconds before reset the board again and check every
4073 * 1 sec for 50 retries. The up to 60 seconds before the
4074 * board ready is required by the Falcon FIPS zeroization
4075 * complete, and any reset the board in between shall cause
4076 * restart of zeroization, further delay the board ready.
4079 /* Adapter failed to init, timeout, status reg
4081 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4082 "0436 Adapter failed to init, "
4083 "timeout, status reg x%x, "
4084 "FW Data: A8 x%x AC x%x\n", status,
4085 readl(phba->MBslimaddr + 0xa8),
4086 readl(phba->MBslimaddr + 0xac));
4087 phba->link_state = LPFC_HBA_ERROR;
4091 /* Check to see if any errors occurred during init */
4092 if (status & HS_FFERM) {
4093 /* ERROR: During chipset initialization */
4094 /* Adapter failed to init, chipset, status reg
4096 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4097 "0437 Adapter failed to init, "
4098 "chipset, status reg x%x, "
4099 "FW Data: A8 x%x AC x%x\n", status,
4100 readl(phba->MBslimaddr + 0xa8),
4101 readl(phba->MBslimaddr + 0xac));
4102 phba->link_state = LPFC_HBA_ERROR;
4115 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4116 lpfc_sli_brdrestart(phba);
4118 /* Read the HBA Host Status Register */
4119 if (lpfc_readl(phba->HSregaddr, &status))
4123 /* Check to see if any errors occurred during init */
4124 if (status & HS_FFERM) {
4125 /* ERROR: During chipset initialization */
4126 /* Adapter failed to init, chipset, status reg <status> */
4127 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4128 "0438 Adapter failed to init, chipset, "
4130 "FW Data: A8 x%x AC x%x\n", status,
4131 readl(phba->MBslimaddr + 0xa8),
4132 readl(phba->MBslimaddr + 0xac));
4133 phba->link_state = LPFC_HBA_ERROR;
4137 /* Clear all interrupt enable conditions */
4138 writel(0, phba->HCregaddr);
4139 readl(phba->HCregaddr); /* flush */
4141 /* setup host attn register */
4142 writel(0xffffffff, phba->HAregaddr);
4143 readl(phba->HAregaddr); /* flush */
4148 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
4150 * This function calculates and returns the number of HBQs required to be
4154 lpfc_sli_hbq_count(void)
4156 return ARRAY_SIZE(lpfc_hbq_defs);
4160 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
4162 * This function adds the number of hbq entries in every HBQ to get
4163 * the total number of hbq entries required for the HBA and returns
4167 lpfc_sli_hbq_entry_count(void)
4169 int hbq_count = lpfc_sli_hbq_count();
4173 for (i = 0; i < hbq_count; ++i)
4174 count += lpfc_hbq_defs[i]->entry_count;
4179 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
4181 * This function calculates amount of memory required for all hbq entries
4182 * to be configured and returns the total memory required.
4185 lpfc_sli_hbq_size(void)
4187 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
4191 * lpfc_sli_hbq_setup - configure and initialize HBQs
4192 * @phba: Pointer to HBA context object.
4194 * This function is called during the SLI initialization to configure
4195 * all the HBQs and post buffers to the HBQ. The caller is not
4196 * required to hold any locks. This function will return zero if successful
4197 * else it will return negative error code.
4200 lpfc_sli_hbq_setup(struct lpfc_hba *phba)
4202 int hbq_count = lpfc_sli_hbq_count();
4206 uint32_t hbq_entry_index;
4208 /* Get a Mailbox buffer to setup mailbox
4209 * commands for HBA initialization
4211 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4218 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
4219 phba->link_state = LPFC_INIT_MBX_CMDS;
4220 phba->hbq_in_use = 1;
4222 hbq_entry_index = 0;
4223 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
4224 phba->hbqs[hbqno].next_hbqPutIdx = 0;
4225 phba->hbqs[hbqno].hbqPutIdx = 0;
4226 phba->hbqs[hbqno].local_hbqGetIdx = 0;
4227 phba->hbqs[hbqno].entry_count =
4228 lpfc_hbq_defs[hbqno]->entry_count;
4229 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
4230 hbq_entry_index, pmb);
4231 hbq_entry_index += phba->hbqs[hbqno].entry_count;
4233 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
4234 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
4235 mbxStatus <status>, ring <num> */
4237 lpfc_printf_log(phba, KERN_ERR,
4238 LOG_SLI | LOG_VPORT,
4239 "1805 Adapter failed to init. "
4240 "Data: x%x x%x x%x\n",
4242 pmbox->mbxStatus, hbqno);
4244 phba->link_state = LPFC_HBA_ERROR;
4245 mempool_free(pmb, phba->mbox_mem_pool);
4249 phba->hbq_count = hbq_count;
4251 mempool_free(pmb, phba->mbox_mem_pool);
4253 /* Initially populate or replenish the HBQs */
4254 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
4255 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
4260 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
4261 * @phba: Pointer to HBA context object.
4263 * This function is called during the SLI initialization to configure
4264 * all the HBQs and post buffers to the HBQ. The caller is not
4265 * required to hold any locks. This function will return zero if successful
4266 * else it will return negative error code.
4269 lpfc_sli4_rb_setup(struct lpfc_hba *phba)
4271 phba->hbq_in_use = 1;
4272 phba->hbqs[0].entry_count = lpfc_hbq_defs[0]->entry_count;
4273 phba->hbq_count = 1;
4274 /* Initially populate or replenish the HBQs */
4275 lpfc_sli_hbqbuf_init_hbqs(phba, 0);
4280 * lpfc_sli_config_port - Issue config port mailbox command
4281 * @phba: Pointer to HBA context object.
4282 * @sli_mode: sli mode - 2/3
4284 * This function is called by the sli intialization code path
4285 * to issue config_port mailbox command. This function restarts the
4286 * HBA firmware and issues a config_port mailbox command to configure
4287 * the SLI interface in the sli mode specified by sli_mode
4288 * variable. The caller is not required to hold any locks.
4289 * The function returns 0 if successful, else returns negative error
4293 lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
4296 uint32_t resetcount = 0, rc = 0, done = 0;
4298 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4300 phba->link_state = LPFC_HBA_ERROR;
4304 phba->sli_rev = sli_mode;
4305 while (resetcount < 2 && !done) {
4306 spin_lock_irq(&phba->hbalock);
4307 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
4308 spin_unlock_irq(&phba->hbalock);
4309 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4310 lpfc_sli_brdrestart(phba);
4311 rc = lpfc_sli_chipset_init(phba);
4315 spin_lock_irq(&phba->hbalock);
4316 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4317 spin_unlock_irq(&phba->hbalock);
4320 /* Call pre CONFIG_PORT mailbox command initialization. A
4321 * value of 0 means the call was successful. Any other
4322 * nonzero value is a failure, but if ERESTART is returned,
4323 * the driver may reset the HBA and try again.
4325 rc = lpfc_config_port_prep(phba);
4326 if (rc == -ERESTART) {
4327 phba->link_state = LPFC_LINK_UNKNOWN;
4332 phba->link_state = LPFC_INIT_MBX_CMDS;
4333 lpfc_config_port(phba, pmb);
4334 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
4335 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
4336 LPFC_SLI3_HBQ_ENABLED |
4337 LPFC_SLI3_CRP_ENABLED |
4338 LPFC_SLI3_BG_ENABLED |
4339 LPFC_SLI3_DSS_ENABLED);
4340 if (rc != MBX_SUCCESS) {
4341 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4342 "0442 Adapter failed to init, mbxCmd x%x "
4343 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
4344 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
4345 spin_lock_irq(&phba->hbalock);
4346 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
4347 spin_unlock_irq(&phba->hbalock);
4350 /* Allow asynchronous mailbox command to go through */
4351 spin_lock_irq(&phba->hbalock);
4352 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
4353 spin_unlock_irq(&phba->hbalock);
4356 if ((pmb->u.mb.un.varCfgPort.casabt == 1) &&
4357 (pmb->u.mb.un.varCfgPort.gasabt == 0))
4358 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4359 "3110 Port did not grant ASABT\n");
4364 goto do_prep_failed;
4366 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
4367 if (!pmb->u.mb.un.varCfgPort.cMA) {
4369 goto do_prep_failed;
4371 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
4372 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
4373 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
4374 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
4375 phba->max_vpi : phba->max_vports;
4379 phba->fips_level = 0;
4380 phba->fips_spec_rev = 0;
4381 if (pmb->u.mb.un.varCfgPort.gdss) {
4382 phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
4383 phba->fips_level = pmb->u.mb.un.varCfgPort.fips_level;
4384 phba->fips_spec_rev = pmb->u.mb.un.varCfgPort.fips_rev;
4385 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4386 "2850 Security Crypto Active. FIPS x%d "
4388 phba->fips_level, phba->fips_spec_rev);
4390 if (pmb->u.mb.un.varCfgPort.sec_err) {
4391 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4392 "2856 Config Port Security Crypto "
4394 pmb->u.mb.un.varCfgPort.sec_err);
4396 if (pmb->u.mb.un.varCfgPort.gerbm)
4397 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
4398 if (pmb->u.mb.un.varCfgPort.gcrp)
4399 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
4401 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
4402 phba->port_gp = phba->mbox->us.s3_pgp.port;
4404 if (phba->cfg_enable_bg) {
4405 if (pmb->u.mb.un.varCfgPort.gbg)
4406 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
4408 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4409 "0443 Adapter did not grant "
4413 phba->hbq_get = NULL;
4414 phba->port_gp = phba->mbox->us.s2.port;
4418 mempool_free(pmb, phba->mbox_mem_pool);
4424 * lpfc_sli_hba_setup - SLI intialization function
4425 * @phba: Pointer to HBA context object.
4427 * This function is the main SLI intialization function. This function
4428 * is called by the HBA intialization code, HBA reset code and HBA
4429 * error attention handler code. Caller is not required to hold any
4430 * locks. This function issues config_port mailbox command to configure
4431 * the SLI, setup iocb rings and HBQ rings. In the end the function
4432 * calls the config_port_post function to issue init_link mailbox
4433 * command and to start the discovery. The function will return zero
4434 * if successful, else it will return negative error code.
4437 lpfc_sli_hba_setup(struct lpfc_hba *phba)
4443 switch (lpfc_sli_mode) {
4445 if (phba->cfg_enable_npiv) {
4446 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4447 "1824 NPIV enabled: Override lpfc_sli_mode "
4448 "parameter (%d) to auto (0).\n",
4458 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4459 "1819 Unrecognized lpfc_sli_mode "
4460 "parameter: %d.\n", lpfc_sli_mode);
4465 rc = lpfc_sli_config_port(phba, mode);
4467 if (rc && lpfc_sli_mode == 3)
4468 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4469 "1820 Unable to select SLI-3. "
4470 "Not supported by adapter.\n");
4471 if (rc && mode != 2)
4472 rc = lpfc_sli_config_port(phba, 2);
4474 goto lpfc_sli_hba_setup_error;
4476 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4477 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
4478 rc = pci_enable_pcie_error_reporting(phba->pcidev);
4480 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4481 "2709 This device supports "
4482 "Advanced Error Reporting (AER)\n");
4483 spin_lock_irq(&phba->hbalock);
4484 phba->hba_flag |= HBA_AER_ENABLED;
4485 spin_unlock_irq(&phba->hbalock);
4487 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4488 "2708 This device does not support "
4489 "Advanced Error Reporting (AER)\n");
4490 phba->cfg_aer_support = 0;
4494 if (phba->sli_rev == 3) {
4495 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
4496 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
4498 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
4499 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
4500 phba->sli3_options = 0;
4503 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4504 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
4505 phba->sli_rev, phba->max_vpi);
4506 rc = lpfc_sli_ring_map(phba);
4509 goto lpfc_sli_hba_setup_error;
4511 /* Initialize VPIs. */
4512 if (phba->sli_rev == LPFC_SLI_REV3) {
4514 * The VPI bitmask and physical ID array are allocated
4515 * and initialized once only - at driver load. A port
4516 * reset doesn't need to reinitialize this memory.
4518 if ((phba->vpi_bmask == NULL) && (phba->vpi_ids == NULL)) {
4519 longs = (phba->max_vpi + BITS_PER_LONG) / BITS_PER_LONG;
4520 phba->vpi_bmask = kzalloc(longs * sizeof(unsigned long),
4522 if (!phba->vpi_bmask) {
4524 goto lpfc_sli_hba_setup_error;
4527 phba->vpi_ids = kzalloc(
4528 (phba->max_vpi+1) * sizeof(uint16_t),
4530 if (!phba->vpi_ids) {
4531 kfree(phba->vpi_bmask);
4533 goto lpfc_sli_hba_setup_error;
4535 for (i = 0; i < phba->max_vpi; i++)
4536 phba->vpi_ids[i] = i;
4541 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
4542 rc = lpfc_sli_hbq_setup(phba);
4544 goto lpfc_sli_hba_setup_error;
4546 spin_lock_irq(&phba->hbalock);
4547 phba->sli.sli_flag |= LPFC_PROCESS_LA;
4548 spin_unlock_irq(&phba->hbalock);
4550 rc = lpfc_config_port_post(phba);
4552 goto lpfc_sli_hba_setup_error;
4556 lpfc_sli_hba_setup_error:
4557 phba->link_state = LPFC_HBA_ERROR;
4558 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4559 "0445 Firmware initialization failed\n");
4564 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
4565 * @phba: Pointer to HBA context object.
4566 * @mboxq: mailbox pointer.
4567 * This function issue a dump mailbox command to read config region
4568 * 23 and parse the records in the region and populate driver
4572 lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba)
4574 LPFC_MBOXQ_t *mboxq;
4575 struct lpfc_dmabuf *mp;
4576 struct lpfc_mqe *mqe;
4577 uint32_t data_length;
4580 /* Program the default value of vlan_id and fc_map */
4581 phba->valid_vlan = 0;
4582 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4583 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4584 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4586 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4590 mqe = &mboxq->u.mqe;
4591 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq)) {
4593 goto out_free_mboxq;
4596 mp = (struct lpfc_dmabuf *) mboxq->context1;
4597 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4599 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4600 "(%d):2571 Mailbox cmd x%x Status x%x "
4601 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4602 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4603 "CQ: x%x x%x x%x x%x\n",
4604 mboxq->vport ? mboxq->vport->vpi : 0,
4605 bf_get(lpfc_mqe_command, mqe),
4606 bf_get(lpfc_mqe_status, mqe),
4607 mqe->un.mb_words[0], mqe->un.mb_words[1],
4608 mqe->un.mb_words[2], mqe->un.mb_words[3],
4609 mqe->un.mb_words[4], mqe->un.mb_words[5],
4610 mqe->un.mb_words[6], mqe->un.mb_words[7],
4611 mqe->un.mb_words[8], mqe->un.mb_words[9],
4612 mqe->un.mb_words[10], mqe->un.mb_words[11],
4613 mqe->un.mb_words[12], mqe->un.mb_words[13],
4614 mqe->un.mb_words[14], mqe->un.mb_words[15],
4615 mqe->un.mb_words[16], mqe->un.mb_words[50],
4617 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
4618 mboxq->mcqe.trailer);
4621 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4624 goto out_free_mboxq;
4626 data_length = mqe->un.mb_words[5];
4627 if (data_length > DMP_RGN23_SIZE) {
4628 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4631 goto out_free_mboxq;
4634 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
4635 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4640 mempool_free(mboxq, phba->mbox_mem_pool);
4645 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
4646 * @phba: pointer to lpfc hba data structure.
4647 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
4648 * @vpd: pointer to the memory to hold resulting port vpd data.
4649 * @vpd_size: On input, the number of bytes allocated to @vpd.
4650 * On output, the number of data bytes in @vpd.
4652 * This routine executes a READ_REV SLI4 mailbox command. In
4653 * addition, this routine gets the port vpd data.
4657 * -ENOMEM - could not allocated memory.
4660 lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
4661 uint8_t *vpd, uint32_t *vpd_size)
4665 struct lpfc_dmabuf *dmabuf;
4666 struct lpfc_mqe *mqe;
4668 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4673 * Get a DMA buffer for the vpd data resulting from the READ_REV
4676 dma_size = *vpd_size;
4677 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4681 if (!dmabuf->virt) {
4685 memset(dmabuf->virt, 0, dma_size);
4688 * The SLI4 implementation of READ_REV conflicts at word1,
4689 * bits 31:16 and SLI4 adds vpd functionality not present
4690 * in SLI3. This code corrects the conflicts.
4692 lpfc_read_rev(phba, mboxq);
4693 mqe = &mboxq->u.mqe;
4694 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
4695 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
4696 mqe->un.read_rev.word1 &= 0x0000FFFF;
4697 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
4698 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
4700 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4702 dma_free_coherent(&phba->pcidev->dev, dma_size,
4703 dmabuf->virt, dmabuf->phys);
4709 * The available vpd length cannot be bigger than the
4710 * DMA buffer passed to the port. Catch the less than
4711 * case and update the caller's size.
4713 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
4714 *vpd_size = mqe->un.read_rev.avail_vpd_len;
4716 memcpy(vpd, dmabuf->virt, *vpd_size);
4718 dma_free_coherent(&phba->pcidev->dev, dma_size,
4719 dmabuf->virt, dmabuf->phys);
4725 * lpfc_sli4_retrieve_pport_name - Retrieve SLI4 device physical port name
4726 * @phba: pointer to lpfc hba data structure.
4728 * This routine retrieves SLI4 device physical port name this PCI function
4733 * otherwise - failed to retrieve physical port name
4736 lpfc_sli4_retrieve_pport_name(struct lpfc_hba *phba)
4738 LPFC_MBOXQ_t *mboxq;
4739 struct lpfc_mbx_get_cntl_attributes *mbx_cntl_attr;
4740 struct lpfc_controller_attribute *cntl_attr;
4741 struct lpfc_mbx_get_port_name *get_port_name;
4742 void *virtaddr = NULL;
4743 uint32_t alloclen, reqlen;
4744 uint32_t shdr_status, shdr_add_status;
4745 union lpfc_sli4_cfg_shdr *shdr;
4746 char cport_name = 0;
4749 /* We assume nothing at this point */
4750 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
4751 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_NON;
4753 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4756 /* obtain link type and link number via READ_CONFIG */
4757 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
4758 lpfc_sli4_read_config(phba);
4759 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL)
4760 goto retrieve_ppname;
4762 /* obtain link type and link number via COMMON_GET_CNTL_ATTRIBUTES */
4763 reqlen = sizeof(struct lpfc_mbx_get_cntl_attributes);
4764 alloclen = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
4765 LPFC_MBOX_OPCODE_GET_CNTL_ATTRIBUTES, reqlen,
4766 LPFC_SLI4_MBX_NEMBED);
4767 if (alloclen < reqlen) {
4768 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4769 "3084 Allocated DMA memory size (%d) is "
4770 "less than the requested DMA memory size "
4771 "(%d)\n", alloclen, reqlen);
4773 goto out_free_mboxq;
4775 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4776 virtaddr = mboxq->sge_array->addr[0];
4777 mbx_cntl_attr = (struct lpfc_mbx_get_cntl_attributes *)virtaddr;
4778 shdr = &mbx_cntl_attr->cfg_shdr;
4779 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
4780 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
4781 if (shdr_status || shdr_add_status || rc) {
4782 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4783 "3085 Mailbox x%x (x%x/x%x) failed, "
4784 "rc:x%x, status:x%x, add_status:x%x\n",
4785 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4786 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
4787 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
4788 rc, shdr_status, shdr_add_status);
4790 goto out_free_mboxq;
4792 cntl_attr = &mbx_cntl_attr->cntl_attr;
4793 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
4794 phba->sli4_hba.lnk_info.lnk_tp =
4795 bf_get(lpfc_cntl_attr_lnk_type, cntl_attr);
4796 phba->sli4_hba.lnk_info.lnk_no =
4797 bf_get(lpfc_cntl_attr_lnk_numb, cntl_attr);
4798 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4799 "3086 lnk_type:%d, lnk_numb:%d\n",
4800 phba->sli4_hba.lnk_info.lnk_tp,
4801 phba->sli4_hba.lnk_info.lnk_no);
4804 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
4805 LPFC_MBOX_OPCODE_GET_PORT_NAME,
4806 sizeof(struct lpfc_mbx_get_port_name) -
4807 sizeof(struct lpfc_sli4_cfg_mhdr),
4808 LPFC_SLI4_MBX_EMBED);
4809 get_port_name = &mboxq->u.mqe.un.get_port_name;
4810 shdr = (union lpfc_sli4_cfg_shdr *)&get_port_name->header.cfg_shdr;
4811 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_OPCODE_VERSION_1);
4812 bf_set(lpfc_mbx_get_port_name_lnk_type, &get_port_name->u.request,
4813 phba->sli4_hba.lnk_info.lnk_tp);
4814 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4815 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
4816 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
4817 if (shdr_status || shdr_add_status || rc) {
4818 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4819 "3087 Mailbox x%x (x%x/x%x) failed: "
4820 "rc:x%x, status:x%x, add_status:x%x\n",
4821 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4822 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
4823 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
4824 rc, shdr_status, shdr_add_status);
4826 goto out_free_mboxq;
4828 switch (phba->sli4_hba.lnk_info.lnk_no) {
4829 case LPFC_LINK_NUMBER_0:
4830 cport_name = bf_get(lpfc_mbx_get_port_name_name0,
4831 &get_port_name->u.response);
4832 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4834 case LPFC_LINK_NUMBER_1:
4835 cport_name = bf_get(lpfc_mbx_get_port_name_name1,
4836 &get_port_name->u.response);
4837 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4839 case LPFC_LINK_NUMBER_2:
4840 cport_name = bf_get(lpfc_mbx_get_port_name_name2,
4841 &get_port_name->u.response);
4842 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4844 case LPFC_LINK_NUMBER_3:
4845 cport_name = bf_get(lpfc_mbx_get_port_name_name3,
4846 &get_port_name->u.response);
4847 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4853 if (phba->sli4_hba.pport_name_sta == LPFC_SLI4_PPNAME_GET) {
4854 phba->Port[0] = cport_name;
4855 phba->Port[1] = '\0';
4856 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4857 "3091 SLI get port name: %s\n", phba->Port);
4861 if (rc != MBX_TIMEOUT) {
4862 if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
4863 lpfc_sli4_mbox_cmd_free(phba, mboxq);
4865 mempool_free(mboxq, phba->mbox_mem_pool);
4871 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
4872 * @phba: pointer to lpfc hba data structure.
4874 * This routine is called to explicitly arm the SLI4 device's completion and
4878 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
4882 lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM);
4883 lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM);
4885 if (phba->sli4_hba.fcp_cq) {
4887 lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[fcp_eqidx],
4889 while (++fcp_eqidx < phba->cfg_fcp_eq_count);
4891 lpfc_sli4_eq_release(phba->sli4_hba.sp_eq, LPFC_QUEUE_REARM);
4892 if (phba->sli4_hba.fp_eq) {
4893 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count;
4895 lpfc_sli4_eq_release(phba->sli4_hba.fp_eq[fcp_eqidx],
4901 * lpfc_sli4_get_avail_extnt_rsrc - Get available resource extent count.
4902 * @phba: Pointer to HBA context object.
4903 * @type: The resource extent type.
4904 * @extnt_count: buffer to hold port available extent count.
4905 * @extnt_size: buffer to hold element count per extent.
4907 * This function calls the port and retrievs the number of available
4908 * extents and their size for a particular extent type.
4910 * Returns: 0 if successful. Nonzero otherwise.
4913 lpfc_sli4_get_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type,
4914 uint16_t *extnt_count, uint16_t *extnt_size)
4919 struct lpfc_mbx_get_rsrc_extent_info *rsrc_info;
4922 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4926 /* Find out how many extents are available for this resource type */
4927 length = (sizeof(struct lpfc_mbx_get_rsrc_extent_info) -
4928 sizeof(struct lpfc_sli4_cfg_mhdr));
4929 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
4930 LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO,
4931 length, LPFC_SLI4_MBX_EMBED);
4933 /* Send an extents count of 0 - the GET doesn't use it. */
4934 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
4935 LPFC_SLI4_MBX_EMBED);
4941 if (!phba->sli4_hba.intr_enable)
4942 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
4944 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
4945 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
4952 rsrc_info = &mbox->u.mqe.un.rsrc_extent_info;
4953 if (bf_get(lpfc_mbox_hdr_status,
4954 &rsrc_info->header.cfg_shdr.response)) {
4955 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
4956 "2930 Failed to get resource extents "
4957 "Status 0x%x Add'l Status 0x%x\n",
4958 bf_get(lpfc_mbox_hdr_status,
4959 &rsrc_info->header.cfg_shdr.response),
4960 bf_get(lpfc_mbox_hdr_add_status,
4961 &rsrc_info->header.cfg_shdr.response));
4966 *extnt_count = bf_get(lpfc_mbx_get_rsrc_extent_info_cnt,
4968 *extnt_size = bf_get(lpfc_mbx_get_rsrc_extent_info_size,
4971 mempool_free(mbox, phba->mbox_mem_pool);
4976 * lpfc_sli4_chk_avail_extnt_rsrc - Check for available SLI4 resource extents.
4977 * @phba: Pointer to HBA context object.
4978 * @type: The extent type to check.
4980 * This function reads the current available extents from the port and checks
4981 * if the extent count or extent size has changed since the last access.
4982 * Callers use this routine post port reset to understand if there is a
4983 * extent reprovisioning requirement.
4986 * -Error: error indicates problem.
4987 * 1: Extent count or size has changed.
4991 lpfc_sli4_chk_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type)
4993 uint16_t curr_ext_cnt, rsrc_ext_cnt;
4994 uint16_t size_diff, rsrc_ext_size;
4996 struct lpfc_rsrc_blks *rsrc_entry;
4997 struct list_head *rsrc_blk_list = NULL;
5001 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5008 case LPFC_RSC_TYPE_FCOE_RPI:
5009 rsrc_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5011 case LPFC_RSC_TYPE_FCOE_VPI:
5012 rsrc_blk_list = &phba->lpfc_vpi_blk_list;
5014 case LPFC_RSC_TYPE_FCOE_XRI:
5015 rsrc_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5017 case LPFC_RSC_TYPE_FCOE_VFI:
5018 rsrc_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5024 list_for_each_entry(rsrc_entry, rsrc_blk_list, list) {
5026 if (rsrc_entry->rsrc_size != rsrc_ext_size)
5030 if (curr_ext_cnt != rsrc_ext_cnt || size_diff != 0)
5037 * lpfc_sli4_cfg_post_extnts -
5038 * @phba: Pointer to HBA context object.
5039 * @extnt_cnt - number of available extents.
5040 * @type - the extent type (rpi, xri, vfi, vpi).
5041 * @emb - buffer to hold either MBX_EMBED or MBX_NEMBED operation.
5042 * @mbox - pointer to the caller's allocated mailbox structure.
5044 * This function executes the extents allocation request. It also
5045 * takes care of the amount of memory needed to allocate or get the
5046 * allocated extents. It is the caller's responsibility to evaluate
5050 * -Error: Error value describes the condition found.
5054 lpfc_sli4_cfg_post_extnts(struct lpfc_hba *phba, uint16_t *extnt_cnt,
5055 uint16_t type, bool *emb, LPFC_MBOXQ_t *mbox)
5060 uint32_t alloc_len, mbox_tmo;
5062 /* Calculate the total requested length of the dma memory */
5063 req_len = *extnt_cnt * sizeof(uint16_t);
5066 * Calculate the size of an embedded mailbox. The uint32_t
5067 * accounts for extents-specific word.
5069 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
5073 * Presume the allocation and response will fit into an embedded
5074 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5076 *emb = LPFC_SLI4_MBX_EMBED;
5077 if (req_len > emb_len) {
5078 req_len = *extnt_cnt * sizeof(uint16_t) +
5079 sizeof(union lpfc_sli4_cfg_shdr) +
5081 *emb = LPFC_SLI4_MBX_NEMBED;
5084 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5085 LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT,
5087 if (alloc_len < req_len) {
5088 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5089 "2982 Allocated DMA memory size (x%x) is "
5090 "less than the requested DMA memory "
5091 "size (x%x)\n", alloc_len, req_len);
5094 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, *extnt_cnt, type, *emb);
5098 if (!phba->sli4_hba.intr_enable)
5099 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5101 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5102 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5111 * lpfc_sli4_alloc_extent - Allocate an SLI4 resource extent.
5112 * @phba: Pointer to HBA context object.
5113 * @type: The resource extent type to allocate.
5115 * This function allocates the number of elements for the specified
5119 lpfc_sli4_alloc_extent(struct lpfc_hba *phba, uint16_t type)
5122 uint16_t rsrc_id_cnt, rsrc_cnt, rsrc_size;
5123 uint16_t rsrc_id, rsrc_start, j, k;
5126 unsigned long longs;
5127 unsigned long *bmask;
5128 struct lpfc_rsrc_blks *rsrc_blks;
5131 struct lpfc_id_range *id_array = NULL;
5132 void *virtaddr = NULL;
5133 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5134 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5135 struct list_head *ext_blk_list;
5137 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5143 if ((rsrc_cnt == 0) || (rsrc_size == 0)) {
5144 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5145 "3009 No available Resource Extents "
5146 "for resource type 0x%x: Count: 0x%x, "
5147 "Size 0x%x\n", type, rsrc_cnt,
5152 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_INIT,
5153 "2903 Available Resource Extents "
5154 "for resource type 0x%x: Count: 0x%x, "
5155 "Size 0x%x\n", type, rsrc_cnt,
5158 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5162 rc = lpfc_sli4_cfg_post_extnts(phba, &rsrc_cnt, type, &emb, mbox);
5169 * Figure out where the response is located. Then get local pointers
5170 * to the response data. The port does not guarantee to respond to
5171 * all extents counts request so update the local variable with the
5172 * allocated count from the port.
5174 if (emb == LPFC_SLI4_MBX_EMBED) {
5175 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
5176 id_array = &rsrc_ext->u.rsp.id[0];
5177 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
5179 virtaddr = mbox->sge_array->addr[0];
5180 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
5181 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
5182 id_array = &n_rsrc->id;
5185 longs = ((rsrc_cnt * rsrc_size) + BITS_PER_LONG - 1) / BITS_PER_LONG;
5186 rsrc_id_cnt = rsrc_cnt * rsrc_size;
5189 * Based on the resource size and count, correct the base and max
5192 length = sizeof(struct lpfc_rsrc_blks);
5194 case LPFC_RSC_TYPE_FCOE_RPI:
5195 phba->sli4_hba.rpi_bmask = kzalloc(longs *
5196 sizeof(unsigned long),
5198 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5202 phba->sli4_hba.rpi_ids = kzalloc(rsrc_id_cnt *
5205 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5206 kfree(phba->sli4_hba.rpi_bmask);
5212 * The next_rpi was initialized with the maximum available
5213 * count but the port may allocate a smaller number. Catch
5214 * that case and update the next_rpi.
5216 phba->sli4_hba.next_rpi = rsrc_id_cnt;
5218 /* Initialize local ptrs for common extent processing later. */
5219 bmask = phba->sli4_hba.rpi_bmask;
5220 ids = phba->sli4_hba.rpi_ids;
5221 ext_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5223 case LPFC_RSC_TYPE_FCOE_VPI:
5224 phba->vpi_bmask = kzalloc(longs *
5225 sizeof(unsigned long),
5227 if (unlikely(!phba->vpi_bmask)) {
5231 phba->vpi_ids = kzalloc(rsrc_id_cnt *
5234 if (unlikely(!phba->vpi_ids)) {
5235 kfree(phba->vpi_bmask);
5240 /* Initialize local ptrs for common extent processing later. */
5241 bmask = phba->vpi_bmask;
5242 ids = phba->vpi_ids;
5243 ext_blk_list = &phba->lpfc_vpi_blk_list;
5245 case LPFC_RSC_TYPE_FCOE_XRI:
5246 phba->sli4_hba.xri_bmask = kzalloc(longs *
5247 sizeof(unsigned long),
5249 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5253 phba->sli4_hba.xri_ids = kzalloc(rsrc_id_cnt *
5256 if (unlikely(!phba->sli4_hba.xri_ids)) {
5257 kfree(phba->sli4_hba.xri_bmask);
5262 /* Initialize local ptrs for common extent processing later. */
5263 bmask = phba->sli4_hba.xri_bmask;
5264 ids = phba->sli4_hba.xri_ids;
5265 ext_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5267 case LPFC_RSC_TYPE_FCOE_VFI:
5268 phba->sli4_hba.vfi_bmask = kzalloc(longs *
5269 sizeof(unsigned long),
5271 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5275 phba->sli4_hba.vfi_ids = kzalloc(rsrc_id_cnt *
5278 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5279 kfree(phba->sli4_hba.vfi_bmask);
5284 /* Initialize local ptrs for common extent processing later. */
5285 bmask = phba->sli4_hba.vfi_bmask;
5286 ids = phba->sli4_hba.vfi_ids;
5287 ext_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5290 /* Unsupported Opcode. Fail call. */
5294 ext_blk_list = NULL;
5299 * Complete initializing the extent configuration with the
5300 * allocated ids assigned to this function. The bitmask serves
5301 * as an index into the array and manages the available ids. The
5302 * array just stores the ids communicated to the port via the wqes.
5304 for (i = 0, j = 0, k = 0; i < rsrc_cnt; i++) {
5306 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_0,
5309 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_1,
5312 rsrc_blks = kzalloc(length, GFP_KERNEL);
5313 if (unlikely(!rsrc_blks)) {
5319 rsrc_blks->rsrc_start = rsrc_id;
5320 rsrc_blks->rsrc_size = rsrc_size;
5321 list_add_tail(&rsrc_blks->list, ext_blk_list);
5322 rsrc_start = rsrc_id;
5323 if ((type == LPFC_RSC_TYPE_FCOE_XRI) && (j == 0))
5324 phba->sli4_hba.scsi_xri_start = rsrc_start +
5325 lpfc_sli4_get_els_iocb_cnt(phba);
5327 while (rsrc_id < (rsrc_start + rsrc_size)) {
5332 /* Entire word processed. Get next word.*/
5337 lpfc_sli4_mbox_cmd_free(phba, mbox);
5342 * lpfc_sli4_dealloc_extent - Deallocate an SLI4 resource extent.
5343 * @phba: Pointer to HBA context object.
5344 * @type: the extent's type.
5346 * This function deallocates all extents of a particular resource type.
5347 * SLI4 does not allow for deallocating a particular extent range. It
5348 * is the caller's responsibility to release all kernel memory resources.
5351 lpfc_sli4_dealloc_extent(struct lpfc_hba *phba, uint16_t type)
5354 uint32_t length, mbox_tmo = 0;
5356 struct lpfc_mbx_dealloc_rsrc_extents *dealloc_rsrc;
5357 struct lpfc_rsrc_blks *rsrc_blk, *rsrc_blk_next;
5359 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5364 * This function sends an embedded mailbox because it only sends the
5365 * the resource type. All extents of this type are released by the
5368 length = (sizeof(struct lpfc_mbx_dealloc_rsrc_extents) -
5369 sizeof(struct lpfc_sli4_cfg_mhdr));
5370 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5371 LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT,
5372 length, LPFC_SLI4_MBX_EMBED);
5374 /* Send an extents count of 0 - the dealloc doesn't use it. */
5375 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5376 LPFC_SLI4_MBX_EMBED);
5381 if (!phba->sli4_hba.intr_enable)
5382 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5384 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5385 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5392 dealloc_rsrc = &mbox->u.mqe.un.dealloc_rsrc_extents;
5393 if (bf_get(lpfc_mbox_hdr_status,
5394 &dealloc_rsrc->header.cfg_shdr.response)) {
5395 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5396 "2919 Failed to release resource extents "
5397 "for type %d - Status 0x%x Add'l Status 0x%x. "
5398 "Resource memory not released.\n",
5400 bf_get(lpfc_mbox_hdr_status,
5401 &dealloc_rsrc->header.cfg_shdr.response),
5402 bf_get(lpfc_mbox_hdr_add_status,
5403 &dealloc_rsrc->header.cfg_shdr.response));
5408 /* Release kernel memory resources for the specific type. */
5410 case LPFC_RSC_TYPE_FCOE_VPI:
5411 kfree(phba->vpi_bmask);
5412 kfree(phba->vpi_ids);
5413 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5414 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5415 &phba->lpfc_vpi_blk_list, list) {
5416 list_del_init(&rsrc_blk->list);
5420 case LPFC_RSC_TYPE_FCOE_XRI:
5421 kfree(phba->sli4_hba.xri_bmask);
5422 kfree(phba->sli4_hba.xri_ids);
5423 bf_set(lpfc_xri_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5424 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5425 &phba->sli4_hba.lpfc_xri_blk_list, list) {
5426 list_del_init(&rsrc_blk->list);
5430 case LPFC_RSC_TYPE_FCOE_VFI:
5431 kfree(phba->sli4_hba.vfi_bmask);
5432 kfree(phba->sli4_hba.vfi_ids);
5433 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5434 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5435 &phba->sli4_hba.lpfc_vfi_blk_list, list) {
5436 list_del_init(&rsrc_blk->list);
5440 case LPFC_RSC_TYPE_FCOE_RPI:
5441 /* RPI bitmask and physical id array are cleaned up earlier. */
5442 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5443 &phba->sli4_hba.lpfc_rpi_blk_list, list) {
5444 list_del_init(&rsrc_blk->list);
5452 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5455 mempool_free(mbox, phba->mbox_mem_pool);
5460 * lpfc_sli4_alloc_resource_identifiers - Allocate all SLI4 resource extents.
5461 * @phba: Pointer to HBA context object.
5463 * This function allocates all SLI4 resource identifiers.
5466 lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba *phba)
5468 int i, rc, error = 0;
5469 uint16_t count, base;
5470 unsigned long longs;
5472 if (!phba->sli4_hba.rpi_hdrs_in_use)
5473 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
5474 if (phba->sli4_hba.extents_in_use) {
5476 * The port supports resource extents. The XRI, VPI, VFI, RPI
5477 * resource extent count must be read and allocated before
5478 * provisioning the resource id arrays.
5480 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
5481 LPFC_IDX_RSRC_RDY) {
5483 * Extent-based resources are set - the driver could
5484 * be in a port reset. Figure out if any corrective
5485 * actions need to be taken.
5487 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5488 LPFC_RSC_TYPE_FCOE_VFI);
5491 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5492 LPFC_RSC_TYPE_FCOE_VPI);
5495 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5496 LPFC_RSC_TYPE_FCOE_XRI);
5499 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5500 LPFC_RSC_TYPE_FCOE_RPI);
5505 * It's possible that the number of resources
5506 * provided to this port instance changed between
5507 * resets. Detect this condition and reallocate
5508 * resources. Otherwise, there is no action.
5511 lpfc_printf_log(phba, KERN_INFO,
5512 LOG_MBOX | LOG_INIT,
5513 "2931 Detected extent resource "
5514 "change. Reallocating all "
5516 rc = lpfc_sli4_dealloc_extent(phba,
5517 LPFC_RSC_TYPE_FCOE_VFI);
5518 rc = lpfc_sli4_dealloc_extent(phba,
5519 LPFC_RSC_TYPE_FCOE_VPI);
5520 rc = lpfc_sli4_dealloc_extent(phba,
5521 LPFC_RSC_TYPE_FCOE_XRI);
5522 rc = lpfc_sli4_dealloc_extent(phba,
5523 LPFC_RSC_TYPE_FCOE_RPI);
5528 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
5532 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
5536 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
5540 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
5543 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
5548 * The port does not support resource extents. The XRI, VPI,
5549 * VFI, RPI resource ids were determined from READ_CONFIG.
5550 * Just allocate the bitmasks and provision the resource id
5551 * arrays. If a port reset is active, the resources don't
5552 * need any action - just exit.
5554 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
5555 LPFC_IDX_RSRC_RDY) {
5556 lpfc_sli4_dealloc_resource_identifiers(phba);
5557 lpfc_sli4_remove_rpis(phba);
5560 count = phba->sli4_hba.max_cfg_param.max_rpi;
5561 base = phba->sli4_hba.max_cfg_param.rpi_base;
5562 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5563 phba->sli4_hba.rpi_bmask = kzalloc(longs *
5564 sizeof(unsigned long),
5566 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5570 phba->sli4_hba.rpi_ids = kzalloc(count *
5573 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5575 goto free_rpi_bmask;
5578 for (i = 0; i < count; i++)
5579 phba->sli4_hba.rpi_ids[i] = base + i;
5581 lpfc_sli4_node_prep(phba);
5584 count = phba->sli4_hba.max_cfg_param.max_vpi;
5585 base = phba->sli4_hba.max_cfg_param.vpi_base;
5586 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5587 phba->vpi_bmask = kzalloc(longs *
5588 sizeof(unsigned long),
5590 if (unlikely(!phba->vpi_bmask)) {
5594 phba->vpi_ids = kzalloc(count *
5597 if (unlikely(!phba->vpi_ids)) {
5599 goto free_vpi_bmask;
5602 for (i = 0; i < count; i++)
5603 phba->vpi_ids[i] = base + i;
5606 count = phba->sli4_hba.max_cfg_param.max_xri;
5607 base = phba->sli4_hba.max_cfg_param.xri_base;
5608 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5609 phba->sli4_hba.xri_bmask = kzalloc(longs *
5610 sizeof(unsigned long),
5612 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5616 phba->sli4_hba.xri_ids = kzalloc(count *
5619 if (unlikely(!phba->sli4_hba.xri_ids)) {
5621 goto free_xri_bmask;
5624 for (i = 0; i < count; i++)
5625 phba->sli4_hba.xri_ids[i] = base + i;
5628 count = phba->sli4_hba.max_cfg_param.max_vfi;
5629 base = phba->sli4_hba.max_cfg_param.vfi_base;
5630 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5631 phba->sli4_hba.vfi_bmask = kzalloc(longs *
5632 sizeof(unsigned long),
5634 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5638 phba->sli4_hba.vfi_ids = kzalloc(count *
5641 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5643 goto free_vfi_bmask;
5646 for (i = 0; i < count; i++)
5647 phba->sli4_hba.vfi_ids[i] = base + i;
5650 * Mark all resources ready. An HBA reset doesn't need
5651 * to reset the initialization.
5653 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
5659 kfree(phba->sli4_hba.vfi_bmask);
5661 kfree(phba->sli4_hba.xri_ids);
5663 kfree(phba->sli4_hba.xri_bmask);
5665 kfree(phba->vpi_ids);
5667 kfree(phba->vpi_bmask);
5669 kfree(phba->sli4_hba.rpi_ids);
5671 kfree(phba->sli4_hba.rpi_bmask);
5677 * lpfc_sli4_dealloc_resource_identifiers - Deallocate all SLI4 resource extents.
5678 * @phba: Pointer to HBA context object.
5680 * This function allocates the number of elements for the specified
5684 lpfc_sli4_dealloc_resource_identifiers(struct lpfc_hba *phba)
5686 if (phba->sli4_hba.extents_in_use) {
5687 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
5688 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
5689 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
5690 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
5692 kfree(phba->vpi_bmask);
5693 kfree(phba->vpi_ids);
5694 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5695 kfree(phba->sli4_hba.xri_bmask);
5696 kfree(phba->sli4_hba.xri_ids);
5697 bf_set(lpfc_xri_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5698 kfree(phba->sli4_hba.vfi_bmask);
5699 kfree(phba->sli4_hba.vfi_ids);
5700 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5701 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5708 * lpfc_sli4_get_allocated_extnts - Get the port's allocated extents.
5709 * @phba: Pointer to HBA context object.
5710 * @type: The resource extent type.
5711 * @extnt_count: buffer to hold port extent count response
5712 * @extnt_size: buffer to hold port extent size response.
5714 * This function calls the port to read the host allocated extents
5715 * for a particular type.
5718 lpfc_sli4_get_allocated_extnts(struct lpfc_hba *phba, uint16_t type,
5719 uint16_t *extnt_cnt, uint16_t *extnt_size)
5723 uint16_t curr_blks = 0;
5724 uint32_t req_len, emb_len;
5725 uint32_t alloc_len, mbox_tmo;
5726 struct list_head *blk_list_head;
5727 struct lpfc_rsrc_blks *rsrc_blk;
5729 void *virtaddr = NULL;
5730 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5731 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5732 union lpfc_sli4_cfg_shdr *shdr;
5735 case LPFC_RSC_TYPE_FCOE_VPI:
5736 blk_list_head = &phba->lpfc_vpi_blk_list;
5738 case LPFC_RSC_TYPE_FCOE_XRI:
5739 blk_list_head = &phba->sli4_hba.lpfc_xri_blk_list;
5741 case LPFC_RSC_TYPE_FCOE_VFI:
5742 blk_list_head = &phba->sli4_hba.lpfc_vfi_blk_list;
5744 case LPFC_RSC_TYPE_FCOE_RPI:
5745 blk_list_head = &phba->sli4_hba.lpfc_rpi_blk_list;
5751 /* Count the number of extents currently allocatd for this type. */
5752 list_for_each_entry(rsrc_blk, blk_list_head, list) {
5753 if (curr_blks == 0) {
5755 * The GET_ALLOCATED mailbox does not return the size,
5756 * just the count. The size should be just the size
5757 * stored in the current allocated block and all sizes
5758 * for an extent type are the same so set the return
5761 *extnt_size = rsrc_blk->rsrc_size;
5766 /* Calculate the total requested length of the dma memory. */
5767 req_len = curr_blks * sizeof(uint16_t);
5770 * Calculate the size of an embedded mailbox. The uint32_t
5771 * accounts for extents-specific word.
5773 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
5777 * Presume the allocation and response will fit into an embedded
5778 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5780 emb = LPFC_SLI4_MBX_EMBED;
5782 if (req_len > emb_len) {
5783 req_len = curr_blks * sizeof(uint16_t) +
5784 sizeof(union lpfc_sli4_cfg_shdr) +
5786 emb = LPFC_SLI4_MBX_NEMBED;
5789 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5792 memset(mbox, 0, sizeof(LPFC_MBOXQ_t));
5794 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5795 LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT,
5797 if (alloc_len < req_len) {
5798 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5799 "2983 Allocated DMA memory size (x%x) is "
5800 "less than the requested DMA memory "
5801 "size (x%x)\n", alloc_len, req_len);
5805 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, curr_blks, type, emb);
5811 if (!phba->sli4_hba.intr_enable)
5812 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5814 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5815 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5824 * Figure out where the response is located. Then get local pointers
5825 * to the response data. The port does not guarantee to respond to
5826 * all extents counts request so update the local variable with the
5827 * allocated count from the port.
5829 if (emb == LPFC_SLI4_MBX_EMBED) {
5830 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
5831 shdr = &rsrc_ext->header.cfg_shdr;
5832 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
5834 virtaddr = mbox->sge_array->addr[0];
5835 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
5836 shdr = &n_rsrc->cfg_shdr;
5837 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
5840 if (bf_get(lpfc_mbox_hdr_status, &shdr->response)) {
5841 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5842 "2984 Failed to read allocated resources "
5843 "for type %d - Status 0x%x Add'l Status 0x%x.\n",
5845 bf_get(lpfc_mbox_hdr_status, &shdr->response),
5846 bf_get(lpfc_mbox_hdr_add_status, &shdr->response));
5851 lpfc_sli4_mbox_cmd_free(phba, mbox);
5856 * lpfc_sli4_hba_setup - SLI4 device intialization PCI function
5857 * @phba: Pointer to HBA context object.
5859 * This function is the main SLI4 device intialization PCI function. This
5860 * function is called by the HBA intialization code, HBA reset code and
5861 * HBA error attention handler code. Caller is not required to hold any
5865 lpfc_sli4_hba_setup(struct lpfc_hba *phba)
5868 LPFC_MBOXQ_t *mboxq;
5869 struct lpfc_mqe *mqe;
5872 uint32_t ftr_rsp = 0;
5873 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
5874 struct lpfc_vport *vport = phba->pport;
5875 struct lpfc_dmabuf *mp;
5877 /* Perform a PCI function reset to start from clean */
5878 rc = lpfc_pci_function_reset(phba);
5882 /* Check the HBA Host Status Register for readyness */
5883 rc = lpfc_sli4_post_status_check(phba);
5887 spin_lock_irq(&phba->hbalock);
5888 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
5889 spin_unlock_irq(&phba->hbalock);
5893 * Allocate a single mailbox container for initializing the
5896 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5900 /* Issue READ_REV to collect vpd and FW information. */
5901 vpd_size = SLI4_PAGE_SIZE;
5902 vpd = kzalloc(vpd_size, GFP_KERNEL);
5908 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
5913 mqe = &mboxq->u.mqe;
5914 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
5915 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev))
5916 phba->hba_flag |= HBA_FCOE_MODE;
5918 phba->hba_flag &= ~HBA_FCOE_MODE;
5920 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
5922 phba->hba_flag |= HBA_FIP_SUPPORT;
5924 phba->hba_flag &= ~HBA_FIP_SUPPORT;
5926 if (phba->sli_rev != LPFC_SLI_REV4) {
5927 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5928 "0376 READ_REV Error. SLI Level %d "
5929 "FCoE enabled %d\n",
5930 phba->sli_rev, phba->hba_flag & HBA_FCOE_MODE);
5937 * Continue initialization with default values even if driver failed
5938 * to read FCoE param config regions, only read parameters if the
5941 if (phba->hba_flag & HBA_FCOE_MODE &&
5942 lpfc_sli4_read_fcoe_params(phba))
5943 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_INIT,
5944 "2570 Failed to read FCoE parameters\n");
5947 * Retrieve sli4 device physical port name, failure of doing it
5948 * is considered as non-fatal.
5950 rc = lpfc_sli4_retrieve_pport_name(phba);
5952 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5953 "3080 Successful retrieving SLI4 device "
5954 "physical port name: %s.\n", phba->Port);
5957 * Evaluate the read rev and vpd data. Populate the driver
5958 * state with the results. If this routine fails, the failure
5959 * is not fatal as the driver will use generic values.
5961 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
5962 if (unlikely(!rc)) {
5963 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5964 "0377 Error %d parsing vpd. "
5965 "Using defaults.\n", rc);
5970 /* Save information as VPD data */
5971 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
5972 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
5973 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
5974 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
5976 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
5978 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
5980 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
5982 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
5983 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
5984 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
5985 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
5986 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
5987 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
5988 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5989 "(%d):0380 READ_REV Status x%x "
5990 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
5991 mboxq->vport ? mboxq->vport->vpi : 0,
5992 bf_get(lpfc_mqe_status, mqe),
5993 phba->vpd.rev.opFwName,
5994 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
5995 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
5998 * Discover the port's supported feature set and match it against the
6001 lpfc_request_features(phba, mboxq);
6002 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6009 * The port must support FCP initiator mode as this is the
6010 * only mode running in the host.
6012 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
6013 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6014 "0378 No support for fcpi mode.\n");
6017 if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh, &mqe->un.req_ftrs))
6018 phba->sli3_options |= LPFC_SLI4_PERFH_ENABLED;
6020 phba->sli3_options &= ~LPFC_SLI4_PERFH_ENABLED;
6022 * If the port cannot support the host's requested features
6023 * then turn off the global config parameters to disable the
6024 * feature in the driver. This is not a fatal error.
6026 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
6027 if (phba->cfg_enable_bg) {
6028 if (bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))
6029 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
6034 if (phba->max_vpi && phba->cfg_enable_npiv &&
6035 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6039 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6040 "0379 Feature Mismatch Data: x%08x %08x "
6041 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
6042 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
6043 phba->cfg_enable_npiv, phba->max_vpi);
6044 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
6045 phba->cfg_enable_bg = 0;
6046 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6047 phba->cfg_enable_npiv = 0;
6050 /* These SLI3 features are assumed in SLI4 */
6051 spin_lock_irq(&phba->hbalock);
6052 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
6053 spin_unlock_irq(&phba->hbalock);
6056 * Allocate all resources (xri,rpi,vpi,vfi) now. Subsequent
6057 * calls depends on these resources to complete port setup.
6059 rc = lpfc_sli4_alloc_resource_identifiers(phba);
6061 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6062 "2920 Failed to alloc Resource IDs "
6066 /* update physical xri mappings in the scsi buffers */
6067 lpfc_scsi_buf_update(phba);
6069 /* Read the port's service parameters. */
6070 rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
6072 phba->link_state = LPFC_HBA_ERROR;
6077 mboxq->vport = vport;
6078 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6079 mp = (struct lpfc_dmabuf *) mboxq->context1;
6080 if (rc == MBX_SUCCESS) {
6081 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
6086 * This memory was allocated by the lpfc_read_sparam routine. Release
6087 * it to the mbuf pool.
6089 lpfc_mbuf_free(phba, mp->virt, mp->phys);
6091 mboxq->context1 = NULL;
6093 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6094 "0382 READ_SPARAM command failed "
6095 "status %d, mbxStatus x%x\n",
6096 rc, bf_get(lpfc_mqe_status, mqe));
6097 phba->link_state = LPFC_HBA_ERROR;
6102 lpfc_update_vport_wwn(vport);
6104 /* Update the fc_host data structures with new wwn. */
6105 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
6106 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
6108 /* Register SGL pool to the device using non-embedded mailbox command */
6109 if (!phba->sli4_hba.extents_in_use) {
6110 rc = lpfc_sli4_post_els_sgl_list(phba);
6112 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6113 "0582 Error %d during els sgl post "
6119 rc = lpfc_sli4_post_els_sgl_list_ext(phba);
6121 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6122 "2560 Error %d during els sgl post "
6129 /* Register SCSI SGL pool to the device */
6130 rc = lpfc_sli4_repost_scsi_sgl_list(phba);
6132 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6133 "0383 Error %d during scsi sgl post "
6135 /* Some Scsi buffers were moved to the abort scsi list */
6136 /* A pci function reset will repost them */
6141 /* Post the rpi header region to the device. */
6142 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
6144 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6145 "0393 Error %d during rpi post operation\n",
6151 /* Create all the SLI4 queues */
6152 rc = lpfc_sli4_queue_create(phba);
6154 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6155 "3089 Failed to allocate queues\n");
6157 goto out_stop_timers;
6159 /* Set up all the queues to the device */
6160 rc = lpfc_sli4_queue_setup(phba);
6162 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6163 "0381 Error %d during queue setup.\n ", rc);
6164 goto out_destroy_queue;
6167 /* Arm the CQs and then EQs on device */
6168 lpfc_sli4_arm_cqeq_intr(phba);
6170 /* Indicate device interrupt mode */
6171 phba->sli4_hba.intr_enable = 1;
6173 /* Allow asynchronous mailbox command to go through */
6174 spin_lock_irq(&phba->hbalock);
6175 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
6176 spin_unlock_irq(&phba->hbalock);
6178 /* Post receive buffers to the device */
6179 lpfc_sli4_rb_setup(phba);
6181 /* Reset HBA FCF states after HBA reset */
6182 phba->fcf.fcf_flag = 0;
6183 phba->fcf.current_rec.flag = 0;
6185 /* Start the ELS watchdog timer */
6186 mod_timer(&vport->els_tmofunc,
6187 jiffies + HZ * (phba->fc_ratov * 2));
6189 /* Start heart beat timer */
6190 mod_timer(&phba->hb_tmofunc,
6191 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
6192 phba->hb_outstanding = 0;
6193 phba->last_completion_time = jiffies;
6195 /* Start error attention (ERATT) polling timer */
6196 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
6198 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
6199 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
6200 rc = pci_enable_pcie_error_reporting(phba->pcidev);
6202 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6203 "2829 This device supports "
6204 "Advanced Error Reporting (AER)\n");
6205 spin_lock_irq(&phba->hbalock);
6206 phba->hba_flag |= HBA_AER_ENABLED;
6207 spin_unlock_irq(&phba->hbalock);
6209 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6210 "2830 This device does not support "
6211 "Advanced Error Reporting (AER)\n");
6212 phba->cfg_aer_support = 0;
6217 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
6219 * The FC Port needs to register FCFI (index 0)
6221 lpfc_reg_fcfi(phba, mboxq);
6222 mboxq->vport = phba->pport;
6223 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6224 if (rc != MBX_SUCCESS)
6225 goto out_unset_queue;
6227 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi,
6228 &mboxq->u.mqe.un.reg_fcfi);
6230 /* Check if the port is configured to be disabled */
6231 lpfc_sli_read_link_ste(phba);
6235 * The port is ready, set the host's link state to LINK_DOWN
6236 * in preparation for link interrupts.
6238 spin_lock_irq(&phba->hbalock);
6239 phba->link_state = LPFC_LINK_DOWN;
6240 spin_unlock_irq(&phba->hbalock);
6241 if (!(phba->hba_flag & HBA_FCOE_MODE) &&
6242 (phba->hba_flag & LINK_DISABLED)) {
6243 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
6244 "3103 Adapter Link is disabled.\n");
6245 lpfc_down_link(phba, mboxq);
6246 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6247 if (rc != MBX_SUCCESS) {
6248 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
6249 "3104 Adapter failed to issue "
6250 "DOWN_LINK mbox cmd, rc:x%x\n", rc);
6251 goto out_unset_queue;
6253 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
6254 /* don't perform init_link on SLI4 FC port loopback test */
6255 if (!(phba->link_flag & LS_LOOPBACK_MODE)) {
6256 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
6258 goto out_unset_queue;
6261 mempool_free(mboxq, phba->mbox_mem_pool);
6264 /* Unset all the queues set up in this routine when error out */
6265 lpfc_sli4_queue_unset(phba);
6267 lpfc_sli4_queue_destroy(phba);
6269 lpfc_stop_hba_timers(phba);
6271 mempool_free(mboxq, phba->mbox_mem_pool);
6276 * lpfc_mbox_timeout - Timeout call back function for mbox timer
6277 * @ptr: context object - pointer to hba structure.
6279 * This is the callback function for mailbox timer. The mailbox
6280 * timer is armed when a new mailbox command is issued and the timer
6281 * is deleted when the mailbox complete. The function is called by
6282 * the kernel timer code when a mailbox does not complete within
6283 * expected time. This function wakes up the worker thread to
6284 * process the mailbox timeout and returns. All the processing is
6285 * done by the worker thread function lpfc_mbox_timeout_handler.
6288 lpfc_mbox_timeout(unsigned long ptr)
6290 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
6291 unsigned long iflag;
6292 uint32_t tmo_posted;
6294 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
6295 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
6297 phba->pport->work_port_events |= WORKER_MBOX_TMO;
6298 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
6301 lpfc_worker_wake_up(phba);
6307 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
6308 * @phba: Pointer to HBA context object.
6310 * This function is called from worker thread when a mailbox command times out.
6311 * The caller is not required to hold any locks. This function will reset the
6312 * HBA and recover all the pending commands.
6315 lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
6317 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
6318 MAILBOX_t *mb = &pmbox->u.mb;
6319 struct lpfc_sli *psli = &phba->sli;
6320 struct lpfc_sli_ring *pring;
6322 /* Check the pmbox pointer first. There is a race condition
6323 * between the mbox timeout handler getting executed in the
6324 * worklist and the mailbox actually completing. When this
6325 * race condition occurs, the mbox_active will be NULL.
6327 spin_lock_irq(&phba->hbalock);
6328 if (pmbox == NULL) {
6329 lpfc_printf_log(phba, KERN_WARNING,
6331 "0353 Active Mailbox cleared - mailbox timeout "
6333 spin_unlock_irq(&phba->hbalock);
6337 /* Mbox cmd <mbxCommand> timeout */
6338 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6339 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
6341 phba->pport->port_state,
6343 phba->sli.mbox_active);
6344 spin_unlock_irq(&phba->hbalock);
6346 /* Setting state unknown so lpfc_sli_abort_iocb_ring
6347 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
6348 * it to fail all outstanding SCSI IO.
6350 spin_lock_irq(&phba->pport->work_port_lock);
6351 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
6352 spin_unlock_irq(&phba->pport->work_port_lock);
6353 spin_lock_irq(&phba->hbalock);
6354 phba->link_state = LPFC_LINK_UNKNOWN;
6355 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
6356 spin_unlock_irq(&phba->hbalock);
6358 pring = &psli->ring[psli->fcp_ring];
6359 lpfc_sli_abort_iocb_ring(phba, pring);
6361 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6362 "0345 Resetting board due to mailbox timeout\n");
6364 /* Reset the HBA device */
6365 lpfc_reset_hba(phba);
6369 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
6370 * @phba: Pointer to HBA context object.
6371 * @pmbox: Pointer to mailbox object.
6372 * @flag: Flag indicating how the mailbox need to be processed.
6374 * This function is called by discovery code and HBA management code
6375 * to submit a mailbox command to firmware with SLI-3 interface spec. This
6376 * function gets the hbalock to protect the data structures.
6377 * The mailbox command can be submitted in polling mode, in which case
6378 * this function will wait in a polling loop for the completion of the
6380 * If the mailbox is submitted in no_wait mode (not polling) the
6381 * function will submit the command and returns immediately without waiting
6382 * for the mailbox completion. The no_wait is supported only when HBA
6383 * is in SLI2/SLI3 mode - interrupts are enabled.
6384 * The SLI interface allows only one mailbox pending at a time. If the
6385 * mailbox is issued in polling mode and there is already a mailbox
6386 * pending, then the function will return an error. If the mailbox is issued
6387 * in NO_WAIT mode and there is a mailbox pending already, the function
6388 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
6389 * The sli layer owns the mailbox object until the completion of mailbox
6390 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
6391 * return codes the caller owns the mailbox command after the return of
6395 lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
6399 struct lpfc_sli *psli = &phba->sli;
6400 uint32_t status, evtctr;
6401 uint32_t ha_copy, hc_copy;
6403 unsigned long timeout;
6404 unsigned long drvr_flag = 0;
6405 uint32_t word0, ldata;
6406 void __iomem *to_slim;
6407 int processing_queue = 0;
6409 spin_lock_irqsave(&phba->hbalock, drvr_flag);
6411 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6412 /* processing mbox queue from intr_handler */
6413 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
6414 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6417 processing_queue = 1;
6418 pmbox = lpfc_mbox_get(phba);
6420 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6425 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
6426 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
6428 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6429 lpfc_printf_log(phba, KERN_ERR,
6430 LOG_MBOX | LOG_VPORT,
6431 "1806 Mbox x%x failed. No vport\n",
6432 pmbox->u.mb.mbxCommand);
6434 goto out_not_finished;
6438 /* If the PCI channel is in offline state, do not post mbox. */
6439 if (unlikely(pci_channel_offline(phba->pcidev))) {
6440 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6441 goto out_not_finished;
6444 /* If HBA has a deferred error attention, fail the iocb. */
6445 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
6446 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6447 goto out_not_finished;
6453 status = MBX_SUCCESS;
6455 if (phba->link_state == LPFC_HBA_ERROR) {
6456 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6458 /* Mbox command <mbxCommand> cannot issue */
6459 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6460 "(%d):0311 Mailbox command x%x cannot "
6461 "issue Data: x%x x%x\n",
6462 pmbox->vport ? pmbox->vport->vpi : 0,
6463 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
6464 goto out_not_finished;
6467 if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT) {
6468 if (lpfc_readl(phba->HCregaddr, &hc_copy) ||
6469 !(hc_copy & HC_MBINT_ENA)) {
6470 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6471 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6472 "(%d):2528 Mailbox command x%x cannot "
6473 "issue Data: x%x x%x\n",
6474 pmbox->vport ? pmbox->vport->vpi : 0,
6475 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
6476 goto out_not_finished;
6480 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
6481 /* Polling for a mbox command when another one is already active
6482 * is not allowed in SLI. Also, the driver must have established
6483 * SLI2 mode to queue and process multiple mbox commands.
6486 if (flag & MBX_POLL) {
6487 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6489 /* Mbox command <mbxCommand> cannot issue */
6490 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6491 "(%d):2529 Mailbox command x%x "
6492 "cannot issue Data: x%x x%x\n",
6493 pmbox->vport ? pmbox->vport->vpi : 0,
6494 pmbox->u.mb.mbxCommand,
6495 psli->sli_flag, flag);
6496 goto out_not_finished;
6499 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
6500 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6501 /* Mbox command <mbxCommand> cannot issue */
6502 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6503 "(%d):2530 Mailbox command x%x "
6504 "cannot issue Data: x%x x%x\n",
6505 pmbox->vport ? pmbox->vport->vpi : 0,
6506 pmbox->u.mb.mbxCommand,
6507 psli->sli_flag, flag);
6508 goto out_not_finished;
6511 /* Another mailbox command is still being processed, queue this
6512 * command to be processed later.
6514 lpfc_mbox_put(phba, pmbox);
6516 /* Mbox cmd issue - BUSY */
6517 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6518 "(%d):0308 Mbox cmd issue - BUSY Data: "
6519 "x%x x%x x%x x%x\n",
6520 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
6521 mb->mbxCommand, phba->pport->port_state,
6522 psli->sli_flag, flag);
6524 psli->slistat.mbox_busy++;
6525 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6528 lpfc_debugfs_disc_trc(pmbox->vport,
6529 LPFC_DISC_TRC_MBOX_VPORT,
6530 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
6531 (uint32_t)mb->mbxCommand,
6532 mb->un.varWords[0], mb->un.varWords[1]);
6535 lpfc_debugfs_disc_trc(phba->pport,
6537 "MBOX Bsy: cmd:x%x mb:x%x x%x",
6538 (uint32_t)mb->mbxCommand,
6539 mb->un.varWords[0], mb->un.varWords[1]);
6545 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
6547 /* If we are not polling, we MUST be in SLI2 mode */
6548 if (flag != MBX_POLL) {
6549 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
6550 (mb->mbxCommand != MBX_KILL_BOARD)) {
6551 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6552 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6553 /* Mbox command <mbxCommand> cannot issue */
6554 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6555 "(%d):2531 Mailbox command x%x "
6556 "cannot issue Data: x%x x%x\n",
6557 pmbox->vport ? pmbox->vport->vpi : 0,
6558 pmbox->u.mb.mbxCommand,
6559 psli->sli_flag, flag);
6560 goto out_not_finished;
6562 /* timeout active mbox command */
6563 mod_timer(&psli->mbox_tmo, (jiffies +
6564 (HZ * lpfc_mbox_tmo_val(phba, pmbox))));
6567 /* Mailbox cmd <cmd> issue */
6568 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6569 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
6571 pmbox->vport ? pmbox->vport->vpi : 0,
6572 mb->mbxCommand, phba->pport->port_state,
6573 psli->sli_flag, flag);
6575 if (mb->mbxCommand != MBX_HEARTBEAT) {
6577 lpfc_debugfs_disc_trc(pmbox->vport,
6578 LPFC_DISC_TRC_MBOX_VPORT,
6579 "MBOX Send vport: cmd:x%x mb:x%x x%x",
6580 (uint32_t)mb->mbxCommand,
6581 mb->un.varWords[0], mb->un.varWords[1]);
6584 lpfc_debugfs_disc_trc(phba->pport,
6586 "MBOX Send: cmd:x%x mb:x%x x%x",
6587 (uint32_t)mb->mbxCommand,
6588 mb->un.varWords[0], mb->un.varWords[1]);
6592 psli->slistat.mbox_cmd++;
6593 evtctr = psli->slistat.mbox_event;
6595 /* next set own bit for the adapter and copy over command word */
6596 mb->mbxOwner = OWN_CHIP;
6598 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
6599 /* Populate mbox extension offset word. */
6600 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) {
6601 *(((uint32_t *)mb) + pmbox->mbox_offset_word)
6602 = (uint8_t *)phba->mbox_ext
6603 - (uint8_t *)phba->mbox;
6606 /* Copy the mailbox extension data */
6607 if (pmbox->in_ext_byte_len && pmbox->context2) {
6608 lpfc_sli_pcimem_bcopy(pmbox->context2,
6609 (uint8_t *)phba->mbox_ext,
6610 pmbox->in_ext_byte_len);
6612 /* Copy command data to host SLIM area */
6613 lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE);
6615 /* Populate mbox extension offset word. */
6616 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len)
6617 *(((uint32_t *)mb) + pmbox->mbox_offset_word)
6618 = MAILBOX_HBA_EXT_OFFSET;
6620 /* Copy the mailbox extension data */
6621 if (pmbox->in_ext_byte_len && pmbox->context2) {
6622 lpfc_memcpy_to_slim(phba->MBslimaddr +
6623 MAILBOX_HBA_EXT_OFFSET,
6624 pmbox->context2, pmbox->in_ext_byte_len);
6627 if (mb->mbxCommand == MBX_CONFIG_PORT) {
6628 /* copy command data into host mbox for cmpl */
6629 lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE);
6632 /* First copy mbox command data to HBA SLIM, skip past first
6634 to_slim = phba->MBslimaddr + sizeof (uint32_t);
6635 lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0],
6636 MAILBOX_CMD_SIZE - sizeof (uint32_t));
6638 /* Next copy over first word, with mbxOwner set */
6639 ldata = *((uint32_t *)mb);
6640 to_slim = phba->MBslimaddr;
6641 writel(ldata, to_slim);
6642 readl(to_slim); /* flush */
6644 if (mb->mbxCommand == MBX_CONFIG_PORT) {
6645 /* switch over to host mailbox */
6646 psli->sli_flag |= LPFC_SLI_ACTIVE;
6654 /* Set up reference to mailbox command */
6655 psli->mbox_active = pmbox;
6656 /* Interrupt board to do it */
6657 writel(CA_MBATT, phba->CAregaddr);
6658 readl(phba->CAregaddr); /* flush */
6659 /* Don't wait for it to finish, just return */
6663 /* Set up null reference to mailbox command */
6664 psli->mbox_active = NULL;
6665 /* Interrupt board to do it */
6666 writel(CA_MBATT, phba->CAregaddr);
6667 readl(phba->CAregaddr); /* flush */
6669 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
6670 /* First read mbox status word */
6671 word0 = *((uint32_t *)phba->mbox);
6672 word0 = le32_to_cpu(word0);
6674 /* First read mbox status word */
6675 if (lpfc_readl(phba->MBslimaddr, &word0)) {
6676 spin_unlock_irqrestore(&phba->hbalock,
6678 goto out_not_finished;
6682 /* Read the HBA Host Attention Register */
6683 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
6684 spin_unlock_irqrestore(&phba->hbalock,
6686 goto out_not_finished;
6688 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
6691 /* Wait for command to complete */
6692 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
6693 (!(ha_copy & HA_MBATT) &&
6694 (phba->link_state > LPFC_WARM_START))) {
6695 if (time_after(jiffies, timeout)) {
6696 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6697 spin_unlock_irqrestore(&phba->hbalock,
6699 goto out_not_finished;
6702 /* Check if we took a mbox interrupt while we were
6704 if (((word0 & OWN_CHIP) != OWN_CHIP)
6705 && (evtctr != psli->slistat.mbox_event))
6709 spin_unlock_irqrestore(&phba->hbalock,
6712 spin_lock_irqsave(&phba->hbalock, drvr_flag);
6715 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
6716 /* First copy command data */
6717 word0 = *((uint32_t *)phba->mbox);
6718 word0 = le32_to_cpu(word0);
6719 if (mb->mbxCommand == MBX_CONFIG_PORT) {
6722 /* Check real SLIM for any errors */
6723 slimword0 = readl(phba->MBslimaddr);
6724 slimmb = (MAILBOX_t *) & slimword0;
6725 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
6726 && slimmb->mbxStatus) {
6733 /* First copy command data */
6734 word0 = readl(phba->MBslimaddr);
6736 /* Read the HBA Host Attention Register */
6737 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
6738 spin_unlock_irqrestore(&phba->hbalock,
6740 goto out_not_finished;
6744 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
6745 /* copy results back to user */
6746 lpfc_sli_pcimem_bcopy(phba->mbox, mb, MAILBOX_CMD_SIZE);
6747 /* Copy the mailbox extension data */
6748 if (pmbox->out_ext_byte_len && pmbox->context2) {
6749 lpfc_sli_pcimem_bcopy(phba->mbox_ext,
6751 pmbox->out_ext_byte_len);
6754 /* First copy command data */
6755 lpfc_memcpy_from_slim(mb, phba->MBslimaddr,
6757 /* Copy the mailbox extension data */
6758 if (pmbox->out_ext_byte_len && pmbox->context2) {
6759 lpfc_memcpy_from_slim(pmbox->context2,
6761 MAILBOX_HBA_EXT_OFFSET,
6762 pmbox->out_ext_byte_len);
6766 writel(HA_MBATT, phba->HAregaddr);
6767 readl(phba->HAregaddr); /* flush */
6769 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6770 status = mb->mbxStatus;
6773 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6777 if (processing_queue) {
6778 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
6779 lpfc_mbox_cmpl_put(phba, pmbox);
6781 return MBX_NOT_FINISHED;
6785 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
6786 * @phba: Pointer to HBA context object.
6788 * The function blocks the posting of SLI4 asynchronous mailbox commands from
6789 * the driver internal pending mailbox queue. It will then try to wait out the
6790 * possible outstanding mailbox command before return.
6793 * 0 - the outstanding mailbox command completed; otherwise, the wait for
6794 * the outstanding mailbox command timed out.
6797 lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
6799 struct lpfc_sli *psli = &phba->sli;
6801 unsigned long timeout = 0;
6803 /* Mark the asynchronous mailbox command posting as blocked */
6804 spin_lock_irq(&phba->hbalock);
6805 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
6806 /* Determine how long we might wait for the active mailbox
6807 * command to be gracefully completed by firmware.
6809 if (phba->sli.mbox_active)
6810 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
6811 phba->sli.mbox_active) *
6813 spin_unlock_irq(&phba->hbalock);
6815 /* Wait for the outstnading mailbox command to complete */
6816 while (phba->sli.mbox_active) {
6817 /* Check active mailbox complete status every 2ms */
6819 if (time_after(jiffies, timeout)) {
6820 /* Timeout, marked the outstanding cmd not complete */
6826 /* Can not cleanly block async mailbox command, fails it */
6828 spin_lock_irq(&phba->hbalock);
6829 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
6830 spin_unlock_irq(&phba->hbalock);
6836 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
6837 * @phba: Pointer to HBA context object.
6839 * The function unblocks and resume posting of SLI4 asynchronous mailbox
6840 * commands from the driver internal pending mailbox queue. It makes sure
6841 * that there is no outstanding mailbox command before resuming posting
6842 * asynchronous mailbox commands. If, for any reason, there is outstanding
6843 * mailbox command, it will try to wait it out before resuming asynchronous
6844 * mailbox command posting.
6847 lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
6849 struct lpfc_sli *psli = &phba->sli;
6851 spin_lock_irq(&phba->hbalock);
6852 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
6853 /* Asynchronous mailbox posting is not blocked, do nothing */
6854 spin_unlock_irq(&phba->hbalock);
6858 /* Outstanding synchronous mailbox command is guaranteed to be done,
6859 * successful or timeout, after timing-out the outstanding mailbox
6860 * command shall always be removed, so just unblock posting async
6861 * mailbox command and resume
6863 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
6864 spin_unlock_irq(&phba->hbalock);
6866 /* wake up worker thread to post asynchronlous mailbox command */
6867 lpfc_worker_wake_up(phba);
6871 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
6872 * @phba: Pointer to HBA context object.
6873 * @mboxq: Pointer to mailbox object.
6875 * The function posts a mailbox to the port. The mailbox is expected
6876 * to be comletely filled in and ready for the port to operate on it.
6877 * This routine executes a synchronous completion operation on the
6878 * mailbox by polling for its completion.
6880 * The caller must not be holding any locks when calling this routine.
6883 * MBX_SUCCESS - mailbox posted successfully
6884 * Any of the MBX error values.
6887 lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
6889 int rc = MBX_SUCCESS;
6890 unsigned long iflag;
6892 uint32_t mcqe_status;
6894 unsigned long timeout;
6895 struct lpfc_sli *psli = &phba->sli;
6896 struct lpfc_mqe *mb = &mboxq->u.mqe;
6897 struct lpfc_bmbx_create *mbox_rgn;
6898 struct dma_address *dma_address;
6899 struct lpfc_register bmbx_reg;
6902 * Only one mailbox can be active to the bootstrap mailbox region
6903 * at a time and there is no queueing provided.
6905 spin_lock_irqsave(&phba->hbalock, iflag);
6906 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
6907 spin_unlock_irqrestore(&phba->hbalock, iflag);
6908 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6909 "(%d):2532 Mailbox command x%x (x%x/x%x) "
6910 "cannot issue Data: x%x x%x\n",
6911 mboxq->vport ? mboxq->vport->vpi : 0,
6912 mboxq->u.mb.mbxCommand,
6913 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
6914 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
6915 psli->sli_flag, MBX_POLL);
6916 return MBXERR_ERROR;
6918 /* The server grabs the token and owns it until release */
6919 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
6920 phba->sli.mbox_active = mboxq;
6921 spin_unlock_irqrestore(&phba->hbalock, iflag);
6924 * Initialize the bootstrap memory region to avoid stale data areas
6925 * in the mailbox post. Then copy the caller's mailbox contents to
6926 * the bmbx mailbox region.
6928 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
6929 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
6930 lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
6931 sizeof(struct lpfc_mqe));
6933 /* Post the high mailbox dma address to the port and wait for ready. */
6934 dma_address = &phba->sli4_hba.bmbx.dma_address;
6935 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
6937 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mboxq)
6940 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
6941 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
6945 if (time_after(jiffies, timeout)) {
6949 } while (!db_ready);
6951 /* Post the low mailbox dma address to the port. */
6952 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
6953 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mboxq)
6956 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
6957 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
6961 if (time_after(jiffies, timeout)) {
6965 } while (!db_ready);
6968 * Read the CQ to ensure the mailbox has completed.
6969 * If so, update the mailbox status so that the upper layers
6970 * can complete the request normally.
6972 lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
6973 sizeof(struct lpfc_mqe));
6974 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
6975 lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
6976 sizeof(struct lpfc_mcqe));
6977 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
6979 * When the CQE status indicates a failure and the mailbox status
6980 * indicates success then copy the CQE status into the mailbox status
6981 * (and prefix it with x4000).
6983 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
6984 if (bf_get(lpfc_mqe_status, mb) == MBX_SUCCESS)
6985 bf_set(lpfc_mqe_status, mb,
6986 (LPFC_MBX_ERROR_RANGE | mcqe_status));
6989 lpfc_sli4_swap_str(phba, mboxq);
6991 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6992 "(%d):0356 Mailbox cmd x%x (x%x/x%x) Status x%x "
6993 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
6994 " x%x x%x CQ: x%x x%x x%x x%x\n",
6995 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
6996 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
6997 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
6998 bf_get(lpfc_mqe_status, mb),
6999 mb->un.mb_words[0], mb->un.mb_words[1],
7000 mb->un.mb_words[2], mb->un.mb_words[3],
7001 mb->un.mb_words[4], mb->un.mb_words[5],
7002 mb->un.mb_words[6], mb->un.mb_words[7],
7003 mb->un.mb_words[8], mb->un.mb_words[9],
7004 mb->un.mb_words[10], mb->un.mb_words[11],
7005 mb->un.mb_words[12], mboxq->mcqe.word0,
7006 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
7007 mboxq->mcqe.trailer);
7009 /* We are holding the token, no needed for lock when release */
7010 spin_lock_irqsave(&phba->hbalock, iflag);
7011 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7012 phba->sli.mbox_active = NULL;
7013 spin_unlock_irqrestore(&phba->hbalock, iflag);
7018 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
7019 * @phba: Pointer to HBA context object.
7020 * @pmbox: Pointer to mailbox object.
7021 * @flag: Flag indicating how the mailbox need to be processed.
7023 * This function is called by discovery code and HBA management code to submit
7024 * a mailbox command to firmware with SLI-4 interface spec.
7026 * Return codes the caller owns the mailbox command after the return of the
7030 lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
7033 struct lpfc_sli *psli = &phba->sli;
7034 unsigned long iflags;
7037 /* dump from issue mailbox command if setup */
7038 lpfc_idiag_mbxacc_dump_issue_mbox(phba, &mboxq->u.mb);
7040 rc = lpfc_mbox_dev_check(phba);
7042 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7043 "(%d):2544 Mailbox command x%x (x%x/x%x) "
7044 "cannot issue Data: x%x x%x\n",
7045 mboxq->vport ? mboxq->vport->vpi : 0,
7046 mboxq->u.mb.mbxCommand,
7047 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7048 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7049 psli->sli_flag, flag);
7050 goto out_not_finished;
7053 /* Detect polling mode and jump to a handler */
7054 if (!phba->sli4_hba.intr_enable) {
7055 if (flag == MBX_POLL)
7056 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
7059 if (rc != MBX_SUCCESS)
7060 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7061 "(%d):2541 Mailbox command x%x "
7062 "(x%x/x%x) cannot issue Data: "
7064 mboxq->vport ? mboxq->vport->vpi : 0,
7065 mboxq->u.mb.mbxCommand,
7066 lpfc_sli_config_mbox_subsys_get(phba,
7068 lpfc_sli_config_mbox_opcode_get(phba,
7070 psli->sli_flag, flag);
7072 } else if (flag == MBX_POLL) {
7073 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7074 "(%d):2542 Try to issue mailbox command "
7075 "x%x (x%x/x%x) synchronously ahead of async"
7076 "mailbox command queue: x%x x%x\n",
7077 mboxq->vport ? mboxq->vport->vpi : 0,
7078 mboxq->u.mb.mbxCommand,
7079 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7080 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7081 psli->sli_flag, flag);
7082 /* Try to block the asynchronous mailbox posting */
7083 rc = lpfc_sli4_async_mbox_block(phba);
7085 /* Successfully blocked, now issue sync mbox cmd */
7086 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
7087 if (rc != MBX_SUCCESS)
7088 lpfc_printf_log(phba, KERN_ERR,
7090 "(%d):2597 Mailbox command "
7091 "x%x (x%x/x%x) cannot issue "
7094 mboxq->vport->vpi : 0,
7095 mboxq->u.mb.mbxCommand,
7096 lpfc_sli_config_mbox_subsys_get(phba,
7098 lpfc_sli_config_mbox_opcode_get(phba,
7100 psli->sli_flag, flag);
7101 /* Unblock the async mailbox posting afterward */
7102 lpfc_sli4_async_mbox_unblock(phba);
7107 /* Now, interrupt mode asynchrous mailbox command */
7108 rc = lpfc_mbox_cmd_check(phba, mboxq);
7110 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7111 "(%d):2543 Mailbox command x%x (x%x/x%x) "
7112 "cannot issue Data: x%x x%x\n",
7113 mboxq->vport ? mboxq->vport->vpi : 0,
7114 mboxq->u.mb.mbxCommand,
7115 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7116 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7117 psli->sli_flag, flag);
7118 goto out_not_finished;
7121 /* Put the mailbox command to the driver internal FIFO */
7122 psli->slistat.mbox_busy++;
7123 spin_lock_irqsave(&phba->hbalock, iflags);
7124 lpfc_mbox_put(phba, mboxq);
7125 spin_unlock_irqrestore(&phba->hbalock, iflags);
7126 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7127 "(%d):0354 Mbox cmd issue - Enqueue Data: "
7128 "x%x (x%x/x%x) x%x x%x x%x\n",
7129 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
7130 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
7131 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7132 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7133 phba->pport->port_state,
7134 psli->sli_flag, MBX_NOWAIT);
7135 /* Wake up worker thread to transport mailbox command from head */
7136 lpfc_worker_wake_up(phba);
7141 return MBX_NOT_FINISHED;
7145 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
7146 * @phba: Pointer to HBA context object.
7148 * This function is called by worker thread to send a mailbox command to
7149 * SLI4 HBA firmware.
7153 lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
7155 struct lpfc_sli *psli = &phba->sli;
7156 LPFC_MBOXQ_t *mboxq;
7157 int rc = MBX_SUCCESS;
7158 unsigned long iflags;
7159 struct lpfc_mqe *mqe;
7162 /* Check interrupt mode before post async mailbox command */
7163 if (unlikely(!phba->sli4_hba.intr_enable))
7164 return MBX_NOT_FINISHED;
7166 /* Check for mailbox command service token */
7167 spin_lock_irqsave(&phba->hbalock, iflags);
7168 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7169 spin_unlock_irqrestore(&phba->hbalock, iflags);
7170 return MBX_NOT_FINISHED;
7172 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7173 spin_unlock_irqrestore(&phba->hbalock, iflags);
7174 return MBX_NOT_FINISHED;
7176 if (unlikely(phba->sli.mbox_active)) {
7177 spin_unlock_irqrestore(&phba->hbalock, iflags);
7178 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7179 "0384 There is pending active mailbox cmd\n");
7180 return MBX_NOT_FINISHED;
7182 /* Take the mailbox command service token */
7183 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7185 /* Get the next mailbox command from head of queue */
7186 mboxq = lpfc_mbox_get(phba);
7188 /* If no more mailbox command waiting for post, we're done */
7190 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7191 spin_unlock_irqrestore(&phba->hbalock, iflags);
7194 phba->sli.mbox_active = mboxq;
7195 spin_unlock_irqrestore(&phba->hbalock, iflags);
7197 /* Check device readiness for posting mailbox command */
7198 rc = lpfc_mbox_dev_check(phba);
7200 /* Driver clean routine will clean up pending mailbox */
7201 goto out_not_finished;
7203 /* Prepare the mbox command to be posted */
7204 mqe = &mboxq->u.mqe;
7205 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
7207 /* Start timer for the mbox_tmo and log some mailbox post messages */
7208 mod_timer(&psli->mbox_tmo, (jiffies +
7209 (HZ * lpfc_mbox_tmo_val(phba, mboxq))));
7211 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7212 "(%d):0355 Mailbox cmd x%x (x%x/x%x) issue Data: "
7214 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
7215 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7216 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7217 phba->pport->port_state, psli->sli_flag);
7219 if (mbx_cmnd != MBX_HEARTBEAT) {
7221 lpfc_debugfs_disc_trc(mboxq->vport,
7222 LPFC_DISC_TRC_MBOX_VPORT,
7223 "MBOX Send vport: cmd:x%x mb:x%x x%x",
7224 mbx_cmnd, mqe->un.mb_words[0],
7225 mqe->un.mb_words[1]);
7227 lpfc_debugfs_disc_trc(phba->pport,
7229 "MBOX Send: cmd:x%x mb:x%x x%x",
7230 mbx_cmnd, mqe->un.mb_words[0],
7231 mqe->un.mb_words[1]);
7234 psli->slistat.mbox_cmd++;
7236 /* Post the mailbox command to the port */
7237 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
7238 if (rc != MBX_SUCCESS) {
7239 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7240 "(%d):2533 Mailbox command x%x (x%x/x%x) "
7241 "cannot issue Data: x%x x%x\n",
7242 mboxq->vport ? mboxq->vport->vpi : 0,
7243 mboxq->u.mb.mbxCommand,
7244 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7245 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7246 psli->sli_flag, MBX_NOWAIT);
7247 goto out_not_finished;
7253 spin_lock_irqsave(&phba->hbalock, iflags);
7254 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
7255 __lpfc_mbox_cmpl_put(phba, mboxq);
7256 /* Release the token */
7257 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7258 phba->sli.mbox_active = NULL;
7259 spin_unlock_irqrestore(&phba->hbalock, iflags);
7261 return MBX_NOT_FINISHED;
7265 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
7266 * @phba: Pointer to HBA context object.
7267 * @pmbox: Pointer to mailbox object.
7268 * @flag: Flag indicating how the mailbox need to be processed.
7270 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
7271 * the API jump table function pointer from the lpfc_hba struct.
7273 * Return codes the caller owns the mailbox command after the return of the
7277 lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
7279 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
7283 * lpfc_mbox_api_table_setup - Set up mbox api function jump table
7284 * @phba: The hba struct for which this call is being executed.
7285 * @dev_grp: The HBA PCI-Device group number.
7287 * This routine sets up the mbox interface API function jump table in @phba
7289 * Returns: 0 - success, -ENODEV - failure.
7292 lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
7296 case LPFC_PCI_DEV_LP:
7297 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
7298 phba->lpfc_sli_handle_slow_ring_event =
7299 lpfc_sli_handle_slow_ring_event_s3;
7300 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
7301 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
7302 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
7304 case LPFC_PCI_DEV_OC:
7305 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
7306 phba->lpfc_sli_handle_slow_ring_event =
7307 lpfc_sli_handle_slow_ring_event_s4;
7308 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
7309 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
7310 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
7313 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7314 "1420 Invalid HBA PCI-device group: 0x%x\n",
7323 * __lpfc_sli_ringtx_put - Add an iocb to the txq
7324 * @phba: Pointer to HBA context object.
7325 * @pring: Pointer to driver SLI ring object.
7326 * @piocb: Pointer to address of newly added command iocb.
7328 * This function is called with hbalock held to add a command
7329 * iocb to the txq when SLI layer cannot submit the command iocb
7333 __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7334 struct lpfc_iocbq *piocb)
7336 /* Insert the caller's iocb in the txq tail for later processing. */
7337 list_add_tail(&piocb->list, &pring->txq);
7342 * lpfc_sli_next_iocb - Get the next iocb in the txq
7343 * @phba: Pointer to HBA context object.
7344 * @pring: Pointer to driver SLI ring object.
7345 * @piocb: Pointer to address of newly added command iocb.
7347 * This function is called with hbalock held before a new
7348 * iocb is submitted to the firmware. This function checks
7349 * txq to flush the iocbs in txq to Firmware before
7350 * submitting new iocbs to the Firmware.
7351 * If there are iocbs in the txq which need to be submitted
7352 * to firmware, lpfc_sli_next_iocb returns the first element
7353 * of the txq after dequeuing it from txq.
7354 * If there is no iocb in the txq then the function will return
7355 * *piocb and *piocb is set to NULL. Caller needs to check
7356 * *piocb to find if there are more commands in the txq.
7358 static struct lpfc_iocbq *
7359 lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7360 struct lpfc_iocbq **piocb)
7362 struct lpfc_iocbq * nextiocb;
7364 nextiocb = lpfc_sli_ringtx_get(phba, pring);
7374 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
7375 * @phba: Pointer to HBA context object.
7376 * @ring_number: SLI ring number to issue iocb on.
7377 * @piocb: Pointer to command iocb.
7378 * @flag: Flag indicating if this command can be put into txq.
7380 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
7381 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
7382 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
7383 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
7384 * this function allows only iocbs for posting buffers. This function finds
7385 * next available slot in the command ring and posts the command to the
7386 * available slot and writes the port attention register to request HBA start
7387 * processing new iocb. If there is no slot available in the ring and
7388 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
7389 * the function returns IOCB_BUSY.
7391 * This function is called with hbalock held. The function will return success
7392 * after it successfully submit the iocb to firmware or after adding to the
7396 __lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
7397 struct lpfc_iocbq *piocb, uint32_t flag)
7399 struct lpfc_iocbq *nextiocb;
7401 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
7403 if (piocb->iocb_cmpl && (!piocb->vport) &&
7404 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
7405 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
7406 lpfc_printf_log(phba, KERN_ERR,
7407 LOG_SLI | LOG_VPORT,
7408 "1807 IOCB x%x failed. No vport\n",
7409 piocb->iocb.ulpCommand);
7415 /* If the PCI channel is in offline state, do not post iocbs. */
7416 if (unlikely(pci_channel_offline(phba->pcidev)))
7419 /* If HBA has a deferred error attention, fail the iocb. */
7420 if (unlikely(phba->hba_flag & DEFER_ERATT))
7424 * We should never get an IOCB if we are in a < LINK_DOWN state
7426 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
7430 * Check to see if we are blocking IOCB processing because of a
7431 * outstanding event.
7433 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
7436 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
7438 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
7439 * can be issued if the link is not up.
7441 switch (piocb->iocb.ulpCommand) {
7442 case CMD_GEN_REQUEST64_CR:
7443 case CMD_GEN_REQUEST64_CX:
7444 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
7445 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
7446 FC_RCTL_DD_UNSOL_CMD) ||
7447 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
7448 MENLO_TRANSPORT_TYPE))
7452 case CMD_QUE_RING_BUF_CN:
7453 case CMD_QUE_RING_BUF64_CN:
7455 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
7456 * completion, iocb_cmpl MUST be 0.
7458 if (piocb->iocb_cmpl)
7459 piocb->iocb_cmpl = NULL;
7461 case CMD_CREATE_XRI_CR:
7462 case CMD_CLOSE_XRI_CN:
7463 case CMD_CLOSE_XRI_CX:
7470 * For FCP commands, we must be in a state where we can process link
7473 } else if (unlikely(pring->ringno == phba->sli.fcp_ring &&
7474 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
7478 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
7479 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
7480 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
7483 lpfc_sli_update_ring(phba, pring);
7485 lpfc_sli_update_full_ring(phba, pring);
7488 return IOCB_SUCCESS;
7493 pring->stats.iocb_cmd_delay++;
7497 if (!(flag & SLI_IOCB_RET_IOCB)) {
7498 __lpfc_sli_ringtx_put(phba, pring, piocb);
7499 return IOCB_SUCCESS;
7506 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
7507 * @phba: Pointer to HBA context object.
7508 * @piocb: Pointer to command iocb.
7509 * @sglq: Pointer to the scatter gather queue object.
7511 * This routine converts the bpl or bde that is in the IOCB
7512 * to a sgl list for the sli4 hardware. The physical address
7513 * of the bpl/bde is converted back to a virtual address.
7514 * If the IOCB contains a BPL then the list of BDE's is
7515 * converted to sli4_sge's. If the IOCB contains a single
7516 * BDE then it is converted to a single sli_sge.
7517 * The IOCB is still in cpu endianess so the contents of
7518 * the bpl can be used without byte swapping.
7520 * Returns valid XRI = Success, NO_XRI = Failure.
7523 lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
7524 struct lpfc_sglq *sglq)
7526 uint16_t xritag = NO_XRI;
7527 struct ulp_bde64 *bpl = NULL;
7528 struct ulp_bde64 bde;
7529 struct sli4_sge *sgl = NULL;
7530 struct lpfc_dmabuf *dmabuf;
7534 uint32_t offset = 0; /* accumulated offset in the sg request list */
7535 int inbound = 0; /* number of sg reply entries inbound from firmware */
7537 if (!piocbq || !sglq)
7540 sgl = (struct sli4_sge *)sglq->sgl;
7541 icmd = &piocbq->iocb;
7542 if (icmd->ulpCommand == CMD_XMIT_BLS_RSP64_CX)
7543 return sglq->sli4_xritag;
7544 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
7545 numBdes = icmd->un.genreq64.bdl.bdeSize /
7546 sizeof(struct ulp_bde64);
7547 /* The addrHigh and addrLow fields within the IOCB
7548 * have not been byteswapped yet so there is no
7549 * need to swap them back.
7551 if (piocbq->context3)
7552 dmabuf = (struct lpfc_dmabuf *)piocbq->context3;
7556 bpl = (struct ulp_bde64 *)dmabuf->virt;
7560 for (i = 0; i < numBdes; i++) {
7561 /* Should already be byte swapped. */
7562 sgl->addr_hi = bpl->addrHigh;
7563 sgl->addr_lo = bpl->addrLow;
7565 sgl->word2 = le32_to_cpu(sgl->word2);
7566 if ((i+1) == numBdes)
7567 bf_set(lpfc_sli4_sge_last, sgl, 1);
7569 bf_set(lpfc_sli4_sge_last, sgl, 0);
7570 /* swap the size field back to the cpu so we
7571 * can assign it to the sgl.
7573 bde.tus.w = le32_to_cpu(bpl->tus.w);
7574 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
7575 /* The offsets in the sgl need to be accumulated
7576 * separately for the request and reply lists.
7577 * The request is always first, the reply follows.
7579 if (piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) {
7580 /* add up the reply sg entries */
7581 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
7583 /* first inbound? reset the offset */
7586 bf_set(lpfc_sli4_sge_offset, sgl, offset);
7587 bf_set(lpfc_sli4_sge_type, sgl,
7588 LPFC_SGE_TYPE_DATA);
7589 offset += bde.tus.f.bdeSize;
7591 sgl->word2 = cpu_to_le32(sgl->word2);
7595 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
7596 /* The addrHigh and addrLow fields of the BDE have not
7597 * been byteswapped yet so they need to be swapped
7598 * before putting them in the sgl.
7601 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
7603 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
7604 sgl->word2 = le32_to_cpu(sgl->word2);
7605 bf_set(lpfc_sli4_sge_last, sgl, 1);
7606 sgl->word2 = cpu_to_le32(sgl->word2);
7608 cpu_to_le32(icmd->un.genreq64.bdl.bdeSize);
7610 return sglq->sli4_xritag;
7614 * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution
7615 * @phba: Pointer to HBA context object.
7617 * This routine performs a roundrobin SCSI command to SLI4 FCP WQ index
7618 * distribution. This is called by __lpfc_sli_issue_iocb_s4() with the hbalock
7621 * Return: index into SLI4 fast-path FCP queue index.
7624 lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba)
7627 if (phba->fcp_qidx >= phba->cfg_fcp_wq_count)
7630 return phba->fcp_qidx;
7634 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
7635 * @phba: Pointer to HBA context object.
7636 * @piocb: Pointer to command iocb.
7637 * @wqe: Pointer to the work queue entry.
7639 * This routine converts the iocb command to its Work Queue Entry
7640 * equivalent. The wqe pointer should not have any fields set when
7641 * this routine is called because it will memcpy over them.
7642 * This routine does not set the CQ_ID or the WQEC bits in the
7645 * Returns: 0 = Success, IOCB_ERROR = Failure.
7648 lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
7649 union lpfc_wqe *wqe)
7651 uint32_t xmit_len = 0, total_len = 0;
7655 uint8_t command_type = ELS_COMMAND_NON_FIP;
7658 uint16_t abrt_iotag;
7659 struct lpfc_iocbq *abrtiocbq;
7660 struct ulp_bde64 *bpl = NULL;
7661 uint32_t els_id = LPFC_ELS_ID_DEFAULT;
7663 struct ulp_bde64 bde;
7664 struct lpfc_nodelist *ndlp;
7668 fip = phba->hba_flag & HBA_FIP_SUPPORT;
7669 /* The fcp commands will set command type */
7670 if (iocbq->iocb_flag & LPFC_IO_FCP)
7671 command_type = FCP_COMMAND;
7672 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
7673 command_type = ELS_COMMAND_FIP;
7675 command_type = ELS_COMMAND_NON_FIP;
7677 /* Some of the fields are in the right position already */
7678 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
7679 abort_tag = (uint32_t) iocbq->iotag;
7680 xritag = iocbq->sli4_xritag;
7681 wqe->generic.wqe_com.word7 = 0; /* The ct field has moved so reset */
7682 /* words0-2 bpl convert bde */
7683 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
7684 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
7685 sizeof(struct ulp_bde64);
7686 bpl = (struct ulp_bde64 *)
7687 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
7691 /* Should already be byte swapped. */
7692 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
7693 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
7694 /* swap the size field back to the cpu so we
7695 * can assign it to the sgl.
7697 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
7698 xmit_len = wqe->generic.bde.tus.f.bdeSize;
7700 for (i = 0; i < numBdes; i++) {
7701 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
7702 total_len += bde.tus.f.bdeSize;
7705 xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
7707 iocbq->iocb.ulpIoTag = iocbq->iotag;
7708 cmnd = iocbq->iocb.ulpCommand;
7710 switch (iocbq->iocb.ulpCommand) {
7711 case CMD_ELS_REQUEST64_CR:
7712 ndlp = (struct lpfc_nodelist *)iocbq->context1;
7713 if (!iocbq->iocb.ulpLe) {
7714 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7715 "2007 Only Limited Edition cmd Format"
7716 " supported 0x%x\n",
7717 iocbq->iocb.ulpCommand);
7721 wqe->els_req.payload_len = xmit_len;
7722 /* Els_reguest64 has a TMO */
7723 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
7724 iocbq->iocb.ulpTimeout);
7725 /* Need a VF for word 4 set the vf bit*/
7726 bf_set(els_req64_vf, &wqe->els_req, 0);
7727 /* And a VFID for word 12 */
7728 bf_set(els_req64_vfid, &wqe->els_req, 0);
7729 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
7730 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
7731 iocbq->iocb.ulpContext);
7732 bf_set(wqe_ct, &wqe->els_req.wqe_com, ct);
7733 bf_set(wqe_pu, &wqe->els_req.wqe_com, 0);
7734 /* CCP CCPE PV PRI in word10 were set in the memcpy */
7735 if (command_type == ELS_COMMAND_FIP)
7736 els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
7737 >> LPFC_FIP_ELS_ID_SHIFT);
7738 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
7739 iocbq->context2)->virt);
7740 if_type = bf_get(lpfc_sli_intf_if_type,
7741 &phba->sli4_hba.sli_intf);
7742 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
7743 if (pcmd && (*pcmd == ELS_CMD_FLOGI ||
7744 *pcmd == ELS_CMD_SCR ||
7745 *pcmd == ELS_CMD_FDISC ||
7746 *pcmd == ELS_CMD_PLOGI)) {
7747 bf_set(els_req64_sp, &wqe->els_req, 1);
7748 bf_set(els_req64_sid, &wqe->els_req,
7749 iocbq->vport->fc_myDID);
7750 bf_set(wqe_ct, &wqe->els_req.wqe_com, 1);
7751 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
7752 phba->vpi_ids[phba->pport->vpi]);
7753 } else if (pcmd && iocbq->context1) {
7754 bf_set(wqe_ct, &wqe->els_req.wqe_com, 0);
7755 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
7756 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
7759 bf_set(wqe_temp_rpi, &wqe->els_req.wqe_com,
7760 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
7761 bf_set(wqe_els_id, &wqe->els_req.wqe_com, els_id);
7762 bf_set(wqe_dbde, &wqe->els_req.wqe_com, 1);
7763 bf_set(wqe_iod, &wqe->els_req.wqe_com, LPFC_WQE_IOD_READ);
7764 bf_set(wqe_qosd, &wqe->els_req.wqe_com, 1);
7765 bf_set(wqe_lenloc, &wqe->els_req.wqe_com, LPFC_WQE_LENLOC_NONE);
7766 bf_set(wqe_ebde_cnt, &wqe->els_req.wqe_com, 0);
7768 case CMD_XMIT_SEQUENCE64_CX:
7769 bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com,
7770 iocbq->iocb.un.ulpWord[3]);
7771 bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com,
7772 iocbq->iocb.unsli3.rcvsli3.ox_id);
7773 /* The entire sequence is transmitted for this IOCB */
7774 xmit_len = total_len;
7775 cmnd = CMD_XMIT_SEQUENCE64_CR;
7776 if (phba->link_flag & LS_LOOPBACK_MODE)
7777 bf_set(wqe_xo, &wqe->xmit_sequence.wge_ctl, 1);
7778 case CMD_XMIT_SEQUENCE64_CR:
7779 /* word3 iocb=io_tag32 wqe=reserved */
7780 wqe->xmit_sequence.rsvd3 = 0;
7781 /* word4 relative_offset memcpy */
7782 /* word5 r_ctl/df_ctl memcpy */
7783 bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0);
7784 bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1);
7785 bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com,
7786 LPFC_WQE_IOD_WRITE);
7787 bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com,
7788 LPFC_WQE_LENLOC_WORD12);
7789 bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0);
7790 wqe->xmit_sequence.xmit_len = xmit_len;
7791 command_type = OTHER_COMMAND;
7793 case CMD_XMIT_BCAST64_CN:
7794 /* word3 iocb=iotag32 wqe=seq_payload_len */
7795 wqe->xmit_bcast64.seq_payload_len = xmit_len;
7796 /* word4 iocb=rsvd wqe=rsvd */
7797 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
7798 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
7799 bf_set(wqe_ct, &wqe->xmit_bcast64.wqe_com,
7800 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
7801 bf_set(wqe_dbde, &wqe->xmit_bcast64.wqe_com, 1);
7802 bf_set(wqe_iod, &wqe->xmit_bcast64.wqe_com, LPFC_WQE_IOD_WRITE);
7803 bf_set(wqe_lenloc, &wqe->xmit_bcast64.wqe_com,
7804 LPFC_WQE_LENLOC_WORD3);
7805 bf_set(wqe_ebde_cnt, &wqe->xmit_bcast64.wqe_com, 0);
7807 case CMD_FCP_IWRITE64_CR:
7808 command_type = FCP_COMMAND_DATA_OUT;
7809 /* word3 iocb=iotag wqe=payload_offset_len */
7810 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
7811 wqe->fcp_iwrite.payload_offset_len =
7812 xmit_len + sizeof(struct fcp_rsp);
7813 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
7814 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
7815 bf_set(wqe_erp, &wqe->fcp_iwrite.wqe_com,
7816 iocbq->iocb.ulpFCP2Rcvy);
7817 bf_set(wqe_lnk, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpXS);
7818 /* Always open the exchange */
7819 bf_set(wqe_xc, &wqe->fcp_iwrite.wqe_com, 0);
7820 bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE);
7821 bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com,
7822 LPFC_WQE_LENLOC_WORD4);
7823 bf_set(wqe_ebde_cnt, &wqe->fcp_iwrite.wqe_com, 0);
7824 bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpPU);
7825 if (iocbq->iocb_flag & LPFC_IO_DIF) {
7826 iocbq->iocb_flag &= ~LPFC_IO_DIF;
7827 bf_set(wqe_dif, &wqe->generic.wqe_com, 1);
7829 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 1);
7831 case CMD_FCP_IREAD64_CR:
7832 /* word3 iocb=iotag wqe=payload_offset_len */
7833 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
7834 wqe->fcp_iread.payload_offset_len =
7835 xmit_len + sizeof(struct fcp_rsp);
7836 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
7837 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
7838 bf_set(wqe_erp, &wqe->fcp_iread.wqe_com,
7839 iocbq->iocb.ulpFCP2Rcvy);
7840 bf_set(wqe_lnk, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpXS);
7841 /* Always open the exchange */
7842 bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
7843 bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ);
7844 bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com,
7845 LPFC_WQE_LENLOC_WORD4);
7846 bf_set(wqe_ebde_cnt, &wqe->fcp_iread.wqe_com, 0);
7847 bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpPU);
7848 if (iocbq->iocb_flag & LPFC_IO_DIF) {
7849 iocbq->iocb_flag &= ~LPFC_IO_DIF;
7850 bf_set(wqe_dif, &wqe->generic.wqe_com, 1);
7852 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 1);
7854 case CMD_FCP_ICMND64_CR:
7855 /* word3 iocb=IO_TAG wqe=reserved */
7856 wqe->fcp_icmd.rsrvd3 = 0;
7857 bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0);
7858 /* Always open the exchange */
7859 bf_set(wqe_xc, &wqe->fcp_icmd.wqe_com, 0);
7860 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 1);
7861 bf_set(wqe_iod, &wqe->fcp_icmd.wqe_com, LPFC_WQE_IOD_WRITE);
7862 bf_set(wqe_qosd, &wqe->fcp_icmd.wqe_com, 1);
7863 bf_set(wqe_lenloc, &wqe->fcp_icmd.wqe_com,
7864 LPFC_WQE_LENLOC_NONE);
7865 bf_set(wqe_ebde_cnt, &wqe->fcp_icmd.wqe_com, 0);
7867 case CMD_GEN_REQUEST64_CR:
7868 /* For this command calculate the xmit length of the
7872 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
7873 sizeof(struct ulp_bde64);
7874 for (i = 0; i < numBdes; i++) {
7875 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
7876 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
7878 xmit_len += bde.tus.f.bdeSize;
7880 /* word3 iocb=IO_TAG wqe=request_payload_len */
7881 wqe->gen_req.request_payload_len = xmit_len;
7882 /* word4 iocb=parameter wqe=relative_offset memcpy */
7883 /* word5 [rctl, type, df_ctl, la] copied in memcpy */
7884 /* word6 context tag copied in memcpy */
7885 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
7886 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
7887 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7888 "2015 Invalid CT %x command 0x%x\n",
7889 ct, iocbq->iocb.ulpCommand);
7892 bf_set(wqe_ct, &wqe->gen_req.wqe_com, 0);
7893 bf_set(wqe_tmo, &wqe->gen_req.wqe_com, iocbq->iocb.ulpTimeout);
7894 bf_set(wqe_pu, &wqe->gen_req.wqe_com, iocbq->iocb.ulpPU);
7895 bf_set(wqe_dbde, &wqe->gen_req.wqe_com, 1);
7896 bf_set(wqe_iod, &wqe->gen_req.wqe_com, LPFC_WQE_IOD_READ);
7897 bf_set(wqe_qosd, &wqe->gen_req.wqe_com, 1);
7898 bf_set(wqe_lenloc, &wqe->gen_req.wqe_com, LPFC_WQE_LENLOC_NONE);
7899 bf_set(wqe_ebde_cnt, &wqe->gen_req.wqe_com, 0);
7900 command_type = OTHER_COMMAND;
7902 case CMD_XMIT_ELS_RSP64_CX:
7903 ndlp = (struct lpfc_nodelist *)iocbq->context1;
7904 /* words0-2 BDE memcpy */
7905 /* word3 iocb=iotag32 wqe=response_payload_len */
7906 wqe->xmit_els_rsp.response_payload_len = xmit_len;
7907 /* word4 iocb=did wge=rsvd. */
7908 wqe->xmit_els_rsp.rsvd4 = 0;
7909 /* word5 iocb=rsvd wge=did */
7910 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
7911 iocbq->iocb.un.elsreq64.remoteID);
7912 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com,
7913 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
7914 bf_set(wqe_pu, &wqe->xmit_els_rsp.wqe_com, iocbq->iocb.ulpPU);
7915 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
7916 iocbq->iocb.unsli3.rcvsli3.ox_id);
7917 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
7918 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
7919 phba->vpi_ids[iocbq->vport->vpi]);
7920 bf_set(wqe_dbde, &wqe->xmit_els_rsp.wqe_com, 1);
7921 bf_set(wqe_iod, &wqe->xmit_els_rsp.wqe_com, LPFC_WQE_IOD_WRITE);
7922 bf_set(wqe_qosd, &wqe->xmit_els_rsp.wqe_com, 1);
7923 bf_set(wqe_lenloc, &wqe->xmit_els_rsp.wqe_com,
7924 LPFC_WQE_LENLOC_WORD3);
7925 bf_set(wqe_ebde_cnt, &wqe->xmit_els_rsp.wqe_com, 0);
7926 bf_set(wqe_rsp_temp_rpi, &wqe->xmit_els_rsp,
7927 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
7928 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
7929 iocbq->context2)->virt);
7930 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
7931 bf_set(els_req64_sp, &wqe->els_req, 1);
7932 bf_set(els_req64_sid, &wqe->els_req,
7933 iocbq->vport->fc_myDID);
7934 bf_set(wqe_ct, &wqe->els_req.wqe_com, 1);
7935 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
7936 phba->vpi_ids[phba->pport->vpi]);
7938 command_type = OTHER_COMMAND;
7940 case CMD_CLOSE_XRI_CN:
7941 case CMD_ABORT_XRI_CN:
7942 case CMD_ABORT_XRI_CX:
7943 /* words 0-2 memcpy should be 0 rserved */
7944 /* port will send abts */
7945 abrt_iotag = iocbq->iocb.un.acxri.abortContextTag;
7946 if (abrt_iotag != 0 && abrt_iotag <= phba->sli.last_iotag) {
7947 abrtiocbq = phba->sli.iocbq_lookup[abrt_iotag];
7948 fip = abrtiocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK;
7952 if ((iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN) || fip)
7954 * The link is down, or the command was ELS_FIP
7955 * so the fw does not need to send abts
7958 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
7960 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
7961 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
7962 /* word5 iocb=CONTEXT_TAG|IO_TAG wqe=reserved */
7963 wqe->abort_cmd.rsrvd5 = 0;
7964 bf_set(wqe_ct, &wqe->abort_cmd.wqe_com,
7965 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
7966 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
7968 * The abort handler will send us CMD_ABORT_XRI_CN or
7969 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
7971 bf_set(wqe_cmnd, &wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
7972 bf_set(wqe_qosd, &wqe->abort_cmd.wqe_com, 1);
7973 bf_set(wqe_lenloc, &wqe->abort_cmd.wqe_com,
7974 LPFC_WQE_LENLOC_NONE);
7975 cmnd = CMD_ABORT_XRI_CX;
7976 command_type = OTHER_COMMAND;
7979 case CMD_XMIT_BLS_RSP64_CX:
7980 ndlp = (struct lpfc_nodelist *)iocbq->context1;
7981 /* As BLS ABTS RSP WQE is very different from other WQEs,
7982 * we re-construct this WQE here based on information in
7983 * iocbq from scratch.
7985 memset(wqe, 0, sizeof(union lpfc_wqe));
7986 /* OX_ID is invariable to who sent ABTS to CT exchange */
7987 bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
7988 bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_rsp));
7989 if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_rsp) ==
7990 LPFC_ABTS_UNSOL_INT) {
7991 /* ABTS sent by initiator to CT exchange, the
7992 * RX_ID field will be filled with the newly
7993 * allocated responder XRI.
7995 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
7996 iocbq->sli4_xritag);
7998 /* ABTS sent by responder to CT exchange, the
7999 * RX_ID field will be filled with the responder
8002 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
8003 bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_rsp));
8005 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
8006 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
8009 bf_set(wqe_els_did, &wqe->xmit_bls_rsp.wqe_dest,
8011 bf_set(xmit_bls_rsp64_temprpi, &wqe->xmit_bls_rsp,
8012 iocbq->iocb.ulpContext);
8013 bf_set(wqe_ct, &wqe->xmit_bls_rsp.wqe_com, 1);
8014 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
8015 phba->vpi_ids[phba->pport->vpi]);
8016 bf_set(wqe_qosd, &wqe->xmit_bls_rsp.wqe_com, 1);
8017 bf_set(wqe_lenloc, &wqe->xmit_bls_rsp.wqe_com,
8018 LPFC_WQE_LENLOC_NONE);
8019 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
8020 command_type = OTHER_COMMAND;
8021 if (iocbq->iocb.un.xseq64.w5.hcsw.Rctl == FC_RCTL_BA_RJT) {
8022 bf_set(xmit_bls_rsp64_rjt_vspec, &wqe->xmit_bls_rsp,
8023 bf_get(lpfc_vndr_code, &iocbq->iocb.un.bls_rsp));
8024 bf_set(xmit_bls_rsp64_rjt_expc, &wqe->xmit_bls_rsp,
8025 bf_get(lpfc_rsn_expln, &iocbq->iocb.un.bls_rsp));
8026 bf_set(xmit_bls_rsp64_rjt_rsnc, &wqe->xmit_bls_rsp,
8027 bf_get(lpfc_rsn_code, &iocbq->iocb.un.bls_rsp));
8031 case CMD_XRI_ABORTED_CX:
8032 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
8033 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
8034 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
8035 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
8036 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
8038 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8039 "2014 Invalid command 0x%x\n",
8040 iocbq->iocb.ulpCommand);
8045 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
8046 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
8047 wqe->generic.wqe_com.abort_tag = abort_tag;
8048 bf_set(wqe_cmd_type, &wqe->generic.wqe_com, command_type);
8049 bf_set(wqe_cmnd, &wqe->generic.wqe_com, cmnd);
8050 bf_set(wqe_class, &wqe->generic.wqe_com, iocbq->iocb.ulpClass);
8051 bf_set(wqe_cqid, &wqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
8056 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
8057 * @phba: Pointer to HBA context object.
8058 * @ring_number: SLI ring number to issue iocb on.
8059 * @piocb: Pointer to command iocb.
8060 * @flag: Flag indicating if this command can be put into txq.
8062 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
8063 * an iocb command to an HBA with SLI-4 interface spec.
8065 * This function is called with hbalock held. The function will return success
8066 * after it successfully submit the iocb to firmware or after adding to the
8070 __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
8071 struct lpfc_iocbq *piocb, uint32_t flag)
8073 struct lpfc_sglq *sglq;
8075 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
8077 if (piocb->sli4_xritag == NO_XRI) {
8078 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
8079 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
8082 if (pring->txq_cnt) {
8083 if (!(flag & SLI_IOCB_RET_IOCB)) {
8084 __lpfc_sli_ringtx_put(phba,
8086 return IOCB_SUCCESS;
8091 sglq = __lpfc_sli_get_sglq(phba, piocb);
8093 if (!(flag & SLI_IOCB_RET_IOCB)) {
8094 __lpfc_sli_ringtx_put(phba,
8097 return IOCB_SUCCESS;
8103 } else if (piocb->iocb_flag & LPFC_IO_FCP) {
8104 /* These IO's already have an XRI and a mapped sgl. */
8108 * This is a continuation of a commandi,(CX) so this
8109 * sglq is on the active list
8111 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_xritag);
8117 piocb->sli4_lxritag = sglq->sli4_lxritag;
8118 piocb->sli4_xritag = sglq->sli4_xritag;
8119 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocb, sglq))
8123 if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe))
8126 if ((piocb->iocb_flag & LPFC_IO_FCP) ||
8127 (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
8129 * For FCP command IOCB, get a new WQ index to distribute
8130 * WQE across the WQsr. On the other hand, for abort IOCB,
8131 * it carries the same WQ index to the original command
8134 if (piocb->iocb_flag & LPFC_IO_FCP)
8135 piocb->fcp_wqidx = lpfc_sli4_scmd_to_wqidx_distr(phba);
8136 if (unlikely(!phba->sli4_hba.fcp_wq))
8138 if (lpfc_sli4_wq_put(phba->sli4_hba.fcp_wq[piocb->fcp_wqidx],
8142 if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
8145 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
8151 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
8153 * This routine wraps the actual lockless version for issusing IOCB function
8154 * pointer from the lpfc_hba struct.
8157 * IOCB_ERROR - Error
8158 * IOCB_SUCCESS - Success
8162 __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
8163 struct lpfc_iocbq *piocb, uint32_t flag)
8165 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
8169 * lpfc_sli_api_table_setup - Set up sli api function jump table
8170 * @phba: The hba struct for which this call is being executed.
8171 * @dev_grp: The HBA PCI-Device group number.
8173 * This routine sets up the SLI interface API function jump table in @phba
8175 * Returns: 0 - success, -ENODEV - failure.
8178 lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
8182 case LPFC_PCI_DEV_LP:
8183 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
8184 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
8186 case LPFC_PCI_DEV_OC:
8187 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
8188 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
8191 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8192 "1419 Invalid HBA PCI-device group: 0x%x\n",
8197 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
8202 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
8203 * @phba: Pointer to HBA context object.
8204 * @pring: Pointer to driver SLI ring object.
8205 * @piocb: Pointer to command iocb.
8206 * @flag: Flag indicating if this command can be put into txq.
8208 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
8209 * function. This function gets the hbalock and calls
8210 * __lpfc_sli_issue_iocb function and will return the error returned
8211 * by __lpfc_sli_issue_iocb function. This wrapper is used by
8212 * functions which do not hold hbalock.
8215 lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
8216 struct lpfc_iocbq *piocb, uint32_t flag)
8218 unsigned long iflags;
8221 spin_lock_irqsave(&phba->hbalock, iflags);
8222 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
8223 spin_unlock_irqrestore(&phba->hbalock, iflags);
8229 * lpfc_extra_ring_setup - Extra ring setup function
8230 * @phba: Pointer to HBA context object.
8232 * This function is called while driver attaches with the
8233 * HBA to setup the extra ring. The extra ring is used
8234 * only when driver needs to support target mode functionality
8235 * or IP over FC functionalities.
8237 * This function is called with no lock held.
8240 lpfc_extra_ring_setup( struct lpfc_hba *phba)
8242 struct lpfc_sli *psli;
8243 struct lpfc_sli_ring *pring;
8247 /* Adjust cmd/rsp ring iocb entries more evenly */
8249 /* Take some away from the FCP ring */
8250 pring = &psli->ring[psli->fcp_ring];
8251 pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8252 pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8253 pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8254 pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
8256 /* and give them to the extra ring */
8257 pring = &psli->ring[psli->extra_ring];
8259 pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8260 pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8261 pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8262 pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
8264 /* Setup default profile for this ring */
8265 pring->iotag_max = 4096;
8266 pring->num_mask = 1;
8267 pring->prt[0].profile = 0; /* Mask 0 */
8268 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
8269 pring->prt[0].type = phba->cfg_multi_ring_type;
8270 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
8274 /* lpfc_sli_abts_recover_port - Recover a port that failed an ABTS.
8275 * @vport: pointer to virtual port object.
8276 * @ndlp: nodelist pointer for the impacted rport.
8278 * The driver calls this routine in response to a XRI ABORT CQE
8279 * event from the port. In this event, the driver is required to
8280 * recover its login to the rport even though its login may be valid
8281 * from the driver's perspective. The failed ABTS notice from the
8282 * port indicates the rport is not responding.
8285 lpfc_sli_abts_recover_port(struct lpfc_vport *vport,
8286 struct lpfc_nodelist *ndlp)
8288 struct Scsi_Host *shost;
8289 struct lpfc_hba *phba;
8290 unsigned long flags = 0;
8292 shost = lpfc_shost_from_vport(vport);
8294 if (ndlp->nlp_state != NLP_STE_MAPPED_NODE) {
8295 lpfc_printf_log(phba, KERN_INFO,
8296 LOG_SLI, "3093 No rport recovery needed. "
8297 "rport in state 0x%x\n",
8301 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8302 "3094 Start rport recovery on shost id 0x%x "
8303 "fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x "
8305 shost->host_no, ndlp->nlp_DID,
8306 vport->vpi, ndlp->nlp_rpi, ndlp->nlp_state,
8309 * The rport is not responding. Don't attempt ADISC recovery.
8310 * Remove the FCP-2 flag to force a PLOGI.
8312 spin_lock_irqsave(shost->host_lock, flags);
8313 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
8314 spin_unlock_irqrestore(shost->host_lock, flags);
8315 lpfc_disc_state_machine(vport, ndlp, NULL,
8316 NLP_EVT_DEVICE_RECOVERY);
8317 lpfc_cancel_retry_delay_tmo(vport, ndlp);
8318 spin_lock_irqsave(shost->host_lock, flags);
8319 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
8320 spin_unlock_irqrestore(shost->host_lock, flags);
8321 lpfc_disc_start(vport);
8324 /* lpfc_sli_abts_err_handler - handle a failed ABTS request from an SLI3 port.
8325 * @phba: Pointer to HBA context object.
8326 * @iocbq: Pointer to iocb object.
8328 * The async_event handler calls this routine when it receives
8329 * an ASYNC_STATUS_CN event from the port. The port generates
8330 * this event when an Abort Sequence request to an rport fails
8331 * twice in succession. The abort could be originated by the
8332 * driver or by the port. The ABTS could have been for an ELS
8333 * or FCP IO. The port only generates this event when an ABTS
8334 * fails to complete after one retry.
8337 lpfc_sli_abts_err_handler(struct lpfc_hba *phba,
8338 struct lpfc_iocbq *iocbq)
8340 struct lpfc_nodelist *ndlp = NULL;
8341 uint16_t rpi = 0, vpi = 0;
8342 struct lpfc_vport *vport = NULL;
8344 /* The rpi in the ulpContext is vport-sensitive. */
8345 vpi = iocbq->iocb.un.asyncstat.sub_ctxt_tag;
8346 rpi = iocbq->iocb.ulpContext;
8348 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8349 "3092 Port generated ABTS async event "
8350 "on vpi %d rpi %d status 0x%x\n",
8351 vpi, rpi, iocbq->iocb.ulpStatus);
8353 vport = lpfc_find_vport_by_vpid(phba, vpi);
8356 ndlp = lpfc_findnode_rpi(vport, rpi);
8357 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
8360 if (iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT)
8361 lpfc_sli_abts_recover_port(vport, ndlp);
8365 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8366 "3095 Event Context not found, no "
8367 "action on vpi %d rpi %d status 0x%x, reason 0x%x\n",
8368 iocbq->iocb.ulpContext, iocbq->iocb.ulpStatus,
8372 /* lpfc_sli4_abts_err_handler - handle a failed ABTS request from an SLI4 port.
8373 * @phba: pointer to HBA context object.
8374 * @ndlp: nodelist pointer for the impacted rport.
8375 * @axri: pointer to the wcqe containing the failed exchange.
8377 * The driver calls this routine when it receives an ABORT_XRI_FCP CQE from the
8378 * port. The port generates this event when an abort exchange request to an
8379 * rport fails twice in succession with no reply. The abort could be originated
8380 * by the driver or by the port. The ABTS could have been for an ELS or FCP IO.
8383 lpfc_sli4_abts_err_handler(struct lpfc_hba *phba,
8384 struct lpfc_nodelist *ndlp,
8385 struct sli4_wcqe_xri_aborted *axri)
8387 struct lpfc_vport *vport;
8389 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
8390 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8391 "3115 Node Context not found, driver "
8392 "ignoring abts err event\n");
8396 vport = ndlp->vport;
8397 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8398 "3116 Port generated FCP XRI ABORT event on "
8399 "vpi %d rpi %d xri x%x status 0x%x\n",
8400 ndlp->vport->vpi, ndlp->nlp_rpi,
8401 bf_get(lpfc_wcqe_xa_xri, axri),
8402 bf_get(lpfc_wcqe_xa_status, axri));
8404 if (bf_get(lpfc_wcqe_xa_status, axri) == IOSTAT_LOCAL_REJECT)
8405 lpfc_sli_abts_recover_port(vport, ndlp);
8409 * lpfc_sli_async_event_handler - ASYNC iocb handler function
8410 * @phba: Pointer to HBA context object.
8411 * @pring: Pointer to driver SLI ring object.
8412 * @iocbq: Pointer to iocb object.
8414 * This function is called by the slow ring event handler
8415 * function when there is an ASYNC event iocb in the ring.
8416 * This function is called with no lock held.
8417 * Currently this function handles only temperature related
8418 * ASYNC events. The function decodes the temperature sensor
8419 * event message and posts events for the management applications.
8422 lpfc_sli_async_event_handler(struct lpfc_hba * phba,
8423 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
8427 struct temp_event temp_event_data;
8428 struct Scsi_Host *shost;
8431 icmd = &iocbq->iocb;
8432 evt_code = icmd->un.asyncstat.evt_code;
8435 case ASYNC_TEMP_WARN:
8436 case ASYNC_TEMP_SAFE:
8437 temp_event_data.data = (uint32_t) icmd->ulpContext;
8438 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
8439 if (evt_code == ASYNC_TEMP_WARN) {
8440 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
8441 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
8442 "0347 Adapter is very hot, please take "
8443 "corrective action. temperature : %d Celsius\n",
8444 (uint32_t) icmd->ulpContext);
8446 temp_event_data.event_code = LPFC_NORMAL_TEMP;
8447 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
8448 "0340 Adapter temperature is OK now. "
8449 "temperature : %d Celsius\n",
8450 (uint32_t) icmd->ulpContext);
8453 /* Send temperature change event to applications */
8454 shost = lpfc_shost_from_vport(phba->pport);
8455 fc_host_post_vendor_event(shost, fc_get_event_number(),
8456 sizeof(temp_event_data), (char *) &temp_event_data,
8459 case ASYNC_STATUS_CN:
8460 lpfc_sli_abts_err_handler(phba, iocbq);
8463 iocb_w = (uint32_t *) icmd;
8464 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8465 "0346 Ring %d handler: unexpected ASYNC_STATUS"
8467 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
8468 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
8469 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
8470 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
8471 pring->ringno, icmd->un.asyncstat.evt_code,
8472 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
8473 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
8474 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
8475 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
8483 * lpfc_sli_setup - SLI ring setup function
8484 * @phba: Pointer to HBA context object.
8486 * lpfc_sli_setup sets up rings of the SLI interface with
8487 * number of iocbs per ring and iotags. This function is
8488 * called while driver attach to the HBA and before the
8489 * interrupts are enabled. So there is no need for locking.
8491 * This function always returns 0.
8494 lpfc_sli_setup(struct lpfc_hba *phba)
8496 int i, totiocbsize = 0;
8497 struct lpfc_sli *psli = &phba->sli;
8498 struct lpfc_sli_ring *pring;
8500 psli->num_rings = MAX_CONFIGURED_RINGS;
8502 psli->fcp_ring = LPFC_FCP_RING;
8503 psli->next_ring = LPFC_FCP_NEXT_RING;
8504 psli->extra_ring = LPFC_EXTRA_RING;
8506 psli->iocbq_lookup = NULL;
8507 psli->iocbq_lookup_len = 0;
8508 psli->last_iotag = 0;
8510 for (i = 0; i < psli->num_rings; i++) {
8511 pring = &psli->ring[i];
8513 case LPFC_FCP_RING: /* ring 0 - FCP */
8514 /* numCiocb and numRiocb are used in config_port */
8515 pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
8516 pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
8517 pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8518 pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8519 pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8520 pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
8521 pring->sizeCiocb = (phba->sli_rev == 3) ?
8522 SLI3_IOCB_CMD_SIZE :
8524 pring->sizeRiocb = (phba->sli_rev == 3) ?
8525 SLI3_IOCB_RSP_SIZE :
8527 pring->iotag_ctr = 0;
8529 (phba->cfg_hba_queue_depth * 2);
8530 pring->fast_iotag = pring->iotag_max;
8531 pring->num_mask = 0;
8533 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
8534 /* numCiocb and numRiocb are used in config_port */
8535 pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
8536 pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
8537 pring->sizeCiocb = (phba->sli_rev == 3) ?
8538 SLI3_IOCB_CMD_SIZE :
8540 pring->sizeRiocb = (phba->sli_rev == 3) ?
8541 SLI3_IOCB_RSP_SIZE :
8543 pring->iotag_max = phba->cfg_hba_queue_depth;
8544 pring->num_mask = 0;
8546 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
8547 /* numCiocb and numRiocb are used in config_port */
8548 pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
8549 pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
8550 pring->sizeCiocb = (phba->sli_rev == 3) ?
8551 SLI3_IOCB_CMD_SIZE :
8553 pring->sizeRiocb = (phba->sli_rev == 3) ?
8554 SLI3_IOCB_RSP_SIZE :
8556 pring->fast_iotag = 0;
8557 pring->iotag_ctr = 0;
8558 pring->iotag_max = 4096;
8559 pring->lpfc_sli_rcv_async_status =
8560 lpfc_sli_async_event_handler;
8561 pring->num_mask = LPFC_MAX_RING_MASK;
8562 pring->prt[0].profile = 0; /* Mask 0 */
8563 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
8564 pring->prt[0].type = FC_TYPE_ELS;
8565 pring->prt[0].lpfc_sli_rcv_unsol_event =
8566 lpfc_els_unsol_event;
8567 pring->prt[1].profile = 0; /* Mask 1 */
8568 pring->prt[1].rctl = FC_RCTL_ELS_REP;
8569 pring->prt[1].type = FC_TYPE_ELS;
8570 pring->prt[1].lpfc_sli_rcv_unsol_event =
8571 lpfc_els_unsol_event;
8572 pring->prt[2].profile = 0; /* Mask 2 */
8573 /* NameServer Inquiry */
8574 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
8576 pring->prt[2].type = FC_TYPE_CT;
8577 pring->prt[2].lpfc_sli_rcv_unsol_event =
8578 lpfc_ct_unsol_event;
8579 pring->prt[3].profile = 0; /* Mask 3 */
8580 /* NameServer response */
8581 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
8583 pring->prt[3].type = FC_TYPE_CT;
8584 pring->prt[3].lpfc_sli_rcv_unsol_event =
8585 lpfc_ct_unsol_event;
8586 /* abort unsolicited sequence */
8587 pring->prt[4].profile = 0; /* Mask 4 */
8588 pring->prt[4].rctl = FC_RCTL_BA_ABTS;
8589 pring->prt[4].type = FC_TYPE_BLS;
8590 pring->prt[4].lpfc_sli_rcv_unsol_event =
8591 lpfc_sli4_ct_abort_unsol_event;
8594 totiocbsize += (pring->numCiocb * pring->sizeCiocb) +
8595 (pring->numRiocb * pring->sizeRiocb);
8597 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
8598 /* Too many cmd / rsp ring entries in SLI2 SLIM */
8599 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
8600 "SLI2 SLIM Data: x%x x%lx\n",
8601 phba->brd_no, totiocbsize,
8602 (unsigned long) MAX_SLIM_IOCB_SIZE);
8604 if (phba->cfg_multi_ring_support == 2)
8605 lpfc_extra_ring_setup(phba);
8611 * lpfc_sli_queue_setup - Queue initialization function
8612 * @phba: Pointer to HBA context object.
8614 * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each
8615 * ring. This function also initializes ring indices of each ring.
8616 * This function is called during the initialization of the SLI
8617 * interface of an HBA.
8618 * This function is called with no lock held and always returns
8622 lpfc_sli_queue_setup(struct lpfc_hba *phba)
8624 struct lpfc_sli *psli;
8625 struct lpfc_sli_ring *pring;
8629 spin_lock_irq(&phba->hbalock);
8630 INIT_LIST_HEAD(&psli->mboxq);
8631 INIT_LIST_HEAD(&psli->mboxq_cmpl);
8632 /* Initialize list headers for txq and txcmplq as double linked lists */
8633 for (i = 0; i < psli->num_rings; i++) {
8634 pring = &psli->ring[i];
8636 pring->next_cmdidx = 0;
8637 pring->local_getidx = 0;
8639 INIT_LIST_HEAD(&pring->txq);
8640 INIT_LIST_HEAD(&pring->txcmplq);
8641 INIT_LIST_HEAD(&pring->iocb_continueq);
8642 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
8643 INIT_LIST_HEAD(&pring->postbufq);
8645 spin_unlock_irq(&phba->hbalock);
8650 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
8651 * @phba: Pointer to HBA context object.
8653 * This routine flushes the mailbox command subsystem. It will unconditionally
8654 * flush all the mailbox commands in the three possible stages in the mailbox
8655 * command sub-system: pending mailbox command queue; the outstanding mailbox
8656 * command; and completed mailbox command queue. It is caller's responsibility
8657 * to make sure that the driver is in the proper state to flush the mailbox
8658 * command sub-system. Namely, the posting of mailbox commands into the
8659 * pending mailbox command queue from the various clients must be stopped;
8660 * either the HBA is in a state that it will never works on the outstanding
8661 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
8662 * mailbox command has been completed.
8665 lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
8667 LIST_HEAD(completions);
8668 struct lpfc_sli *psli = &phba->sli;
8670 unsigned long iflag;
8672 /* Flush all the mailbox commands in the mbox system */
8673 spin_lock_irqsave(&phba->hbalock, iflag);
8674 /* The pending mailbox command queue */
8675 list_splice_init(&phba->sli.mboxq, &completions);
8676 /* The outstanding active mailbox command */
8677 if (psli->mbox_active) {
8678 list_add_tail(&psli->mbox_active->list, &completions);
8679 psli->mbox_active = NULL;
8680 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8682 /* The completed mailbox command queue */
8683 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
8684 spin_unlock_irqrestore(&phba->hbalock, iflag);
8686 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
8687 while (!list_empty(&completions)) {
8688 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
8689 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
8691 pmb->mbox_cmpl(phba, pmb);
8696 * lpfc_sli_host_down - Vport cleanup function
8697 * @vport: Pointer to virtual port object.
8699 * lpfc_sli_host_down is called to clean up the resources
8700 * associated with a vport before destroying virtual
8701 * port data structures.
8702 * This function does following operations:
8703 * - Free discovery resources associated with this virtual
8705 * - Free iocbs associated with this virtual port in
8707 * - Send abort for all iocb commands associated with this
8710 * This function is called with no lock held and always returns 1.
8713 lpfc_sli_host_down(struct lpfc_vport *vport)
8715 LIST_HEAD(completions);
8716 struct lpfc_hba *phba = vport->phba;
8717 struct lpfc_sli *psli = &phba->sli;
8718 struct lpfc_sli_ring *pring;
8719 struct lpfc_iocbq *iocb, *next_iocb;
8721 unsigned long flags = 0;
8722 uint16_t prev_pring_flag;
8724 lpfc_cleanup_discovery_resources(vport);
8726 spin_lock_irqsave(&phba->hbalock, flags);
8727 for (i = 0; i < psli->num_rings; i++) {
8728 pring = &psli->ring[i];
8729 prev_pring_flag = pring->flag;
8730 /* Only slow rings */
8731 if (pring->ringno == LPFC_ELS_RING) {
8732 pring->flag |= LPFC_DEFERRED_RING_EVENT;
8733 /* Set the lpfc data pending flag */
8734 set_bit(LPFC_DATA_READY, &phba->data_flags);
8737 * Error everything on the txq since these iocbs have not been
8738 * given to the FW yet.
8740 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
8741 if (iocb->vport != vport)
8743 list_move_tail(&iocb->list, &completions);
8747 /* Next issue ABTS for everything on the txcmplq */
8748 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq,
8750 if (iocb->vport != vport)
8752 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
8755 pring->flag = prev_pring_flag;
8758 spin_unlock_irqrestore(&phba->hbalock, flags);
8760 /* Cancel all the IOCBs from the completions list */
8761 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
8767 * lpfc_sli_hba_down - Resource cleanup function for the HBA
8768 * @phba: Pointer to HBA context object.
8770 * This function cleans up all iocb, buffers, mailbox commands
8771 * while shutting down the HBA. This function is called with no
8772 * lock held and always returns 1.
8773 * This function does the following to cleanup driver resources:
8774 * - Free discovery resources for each virtual port
8775 * - Cleanup any pending fabric iocbs
8776 * - Iterate through the iocb txq and free each entry
8778 * - Free up any buffer posted to the HBA
8779 * - Free mailbox commands in the mailbox queue.
8782 lpfc_sli_hba_down(struct lpfc_hba *phba)
8784 LIST_HEAD(completions);
8785 struct lpfc_sli *psli = &phba->sli;
8786 struct lpfc_sli_ring *pring;
8787 struct lpfc_dmabuf *buf_ptr;
8788 unsigned long flags = 0;
8791 /* Shutdown the mailbox command sub-system */
8792 lpfc_sli_mbox_sys_shutdown(phba);
8794 lpfc_hba_down_prep(phba);
8796 lpfc_fabric_abort_hba(phba);
8798 spin_lock_irqsave(&phba->hbalock, flags);
8799 for (i = 0; i < psli->num_rings; i++) {
8800 pring = &psli->ring[i];
8801 /* Only slow rings */
8802 if (pring->ringno == LPFC_ELS_RING) {
8803 pring->flag |= LPFC_DEFERRED_RING_EVENT;
8804 /* Set the lpfc data pending flag */
8805 set_bit(LPFC_DATA_READY, &phba->data_flags);
8809 * Error everything on the txq since these iocbs have not been
8810 * given to the FW yet.
8812 list_splice_init(&pring->txq, &completions);
8816 spin_unlock_irqrestore(&phba->hbalock, flags);
8818 /* Cancel all the IOCBs from the completions list */
8819 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
8822 spin_lock_irqsave(&phba->hbalock, flags);
8823 list_splice_init(&phba->elsbuf, &completions);
8824 phba->elsbuf_cnt = 0;
8825 phba->elsbuf_prev_cnt = 0;
8826 spin_unlock_irqrestore(&phba->hbalock, flags);
8828 while (!list_empty(&completions)) {
8829 list_remove_head(&completions, buf_ptr,
8830 struct lpfc_dmabuf, list);
8831 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
8835 /* Return any active mbox cmds */
8836 del_timer_sync(&psli->mbox_tmo);
8838 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
8839 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
8840 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
8846 * lpfc_sli_pcimem_bcopy - SLI memory copy function
8847 * @srcp: Source memory pointer.
8848 * @destp: Destination memory pointer.
8849 * @cnt: Number of words required to be copied.
8851 * This function is used for copying data between driver memory
8852 * and the SLI memory. This function also changes the endianness
8853 * of each word if native endianness is different from SLI
8854 * endianness. This function can be called with or without
8858 lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
8860 uint32_t *src = srcp;
8861 uint32_t *dest = destp;
8865 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
8867 ldata = le32_to_cpu(ldata);
8876 * lpfc_sli_bemem_bcopy - SLI memory copy function
8877 * @srcp: Source memory pointer.
8878 * @destp: Destination memory pointer.
8879 * @cnt: Number of words required to be copied.
8881 * This function is used for copying data between a data structure
8882 * with big endian representation to local endianness.
8883 * This function can be called with or without lock.
8886 lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
8888 uint32_t *src = srcp;
8889 uint32_t *dest = destp;
8893 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
8895 ldata = be32_to_cpu(ldata);
8903 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
8904 * @phba: Pointer to HBA context object.
8905 * @pring: Pointer to driver SLI ring object.
8906 * @mp: Pointer to driver buffer object.
8908 * This function is called with no lock held.
8909 * It always return zero after adding the buffer to the postbufq
8913 lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
8914 struct lpfc_dmabuf *mp)
8916 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
8918 spin_lock_irq(&phba->hbalock);
8919 list_add_tail(&mp->list, &pring->postbufq);
8920 pring->postbufq_cnt++;
8921 spin_unlock_irq(&phba->hbalock);
8926 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
8927 * @phba: Pointer to HBA context object.
8929 * When HBQ is enabled, buffers are searched based on tags. This function
8930 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
8931 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
8932 * does not conflict with tags of buffer posted for unsolicited events.
8933 * The function returns the allocated tag. The function is called with
8937 lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
8939 spin_lock_irq(&phba->hbalock);
8940 phba->buffer_tag_count++;
8942 * Always set the QUE_BUFTAG_BIT to distiguish between
8943 * a tag assigned by HBQ.
8945 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
8946 spin_unlock_irq(&phba->hbalock);
8947 return phba->buffer_tag_count;
8951 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
8952 * @phba: Pointer to HBA context object.
8953 * @pring: Pointer to driver SLI ring object.
8956 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
8957 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
8958 * iocb is posted to the response ring with the tag of the buffer.
8959 * This function searches the pring->postbufq list using the tag
8960 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
8961 * iocb. If the buffer is found then lpfc_dmabuf object of the
8962 * buffer is returned to the caller else NULL is returned.
8963 * This function is called with no lock held.
8965 struct lpfc_dmabuf *
8966 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
8969 struct lpfc_dmabuf *mp, *next_mp;
8970 struct list_head *slp = &pring->postbufq;
8972 /* Search postbufq, from the beginning, looking for a match on tag */
8973 spin_lock_irq(&phba->hbalock);
8974 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
8975 if (mp->buffer_tag == tag) {
8976 list_del_init(&mp->list);
8977 pring->postbufq_cnt--;
8978 spin_unlock_irq(&phba->hbalock);
8983 spin_unlock_irq(&phba->hbalock);
8984 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8985 "0402 Cannot find virtual addr for buffer tag on "
8986 "ring %d Data x%lx x%p x%p x%x\n",
8987 pring->ringno, (unsigned long) tag,
8988 slp->next, slp->prev, pring->postbufq_cnt);
8994 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
8995 * @phba: Pointer to HBA context object.
8996 * @pring: Pointer to driver SLI ring object.
8997 * @phys: DMA address of the buffer.
8999 * This function searches the buffer list using the dma_address
9000 * of unsolicited event to find the driver's lpfc_dmabuf object
9001 * corresponding to the dma_address. The function returns the
9002 * lpfc_dmabuf object if a buffer is found else it returns NULL.
9003 * This function is called by the ct and els unsolicited event
9004 * handlers to get the buffer associated with the unsolicited
9007 * This function is called with no lock held.
9009 struct lpfc_dmabuf *
9010 lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9013 struct lpfc_dmabuf *mp, *next_mp;
9014 struct list_head *slp = &pring->postbufq;
9016 /* Search postbufq, from the beginning, looking for a match on phys */
9017 spin_lock_irq(&phba->hbalock);
9018 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
9019 if (mp->phys == phys) {
9020 list_del_init(&mp->list);
9021 pring->postbufq_cnt--;
9022 spin_unlock_irq(&phba->hbalock);
9027 spin_unlock_irq(&phba->hbalock);
9028 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9029 "0410 Cannot find virtual addr for mapped buf on "
9030 "ring %d Data x%llx x%p x%p x%x\n",
9031 pring->ringno, (unsigned long long)phys,
9032 slp->next, slp->prev, pring->postbufq_cnt);
9037 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
9038 * @phba: Pointer to HBA context object.
9039 * @cmdiocb: Pointer to driver command iocb object.
9040 * @rspiocb: Pointer to driver response iocb object.
9042 * This function is the completion handler for the abort iocbs for
9043 * ELS commands. This function is called from the ELS ring event
9044 * handler with no lock held. This function frees memory resources
9045 * associated with the abort iocb.
9048 lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9049 struct lpfc_iocbq *rspiocb)
9051 IOCB_t *irsp = &rspiocb->iocb;
9052 uint16_t abort_iotag, abort_context;
9053 struct lpfc_iocbq *abort_iocb = NULL;
9055 if (irsp->ulpStatus) {
9058 * Assume that the port already completed and returned, or
9059 * will return the iocb. Just Log the message.
9061 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
9062 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
9064 spin_lock_irq(&phba->hbalock);
9065 if (phba->sli_rev < LPFC_SLI_REV4) {
9066 if (abort_iotag != 0 &&
9067 abort_iotag <= phba->sli.last_iotag)
9069 phba->sli.iocbq_lookup[abort_iotag];
9071 /* For sli4 the abort_tag is the XRI,
9072 * so the abort routine puts the iotag of the iocb
9073 * being aborted in the context field of the abort
9076 abort_iocb = phba->sli.iocbq_lookup[abort_context];
9078 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI,
9079 "0327 Cannot abort els iocb %p "
9080 "with tag %x context %x, abort status %x, "
9082 abort_iocb, abort_iotag, abort_context,
9083 irsp->ulpStatus, irsp->un.ulpWord[4]);
9085 spin_unlock_irq(&phba->hbalock);
9087 lpfc_sli_release_iocbq(phba, cmdiocb);
9092 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
9093 * @phba: Pointer to HBA context object.
9094 * @cmdiocb: Pointer to driver command iocb object.
9095 * @rspiocb: Pointer to driver response iocb object.
9097 * The function is called from SLI ring event handler with no
9098 * lock held. This function is the completion handler for ELS commands
9099 * which are aborted. The function frees memory resources used for
9100 * the aborted ELS commands.
9103 lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9104 struct lpfc_iocbq *rspiocb)
9106 IOCB_t *irsp = &rspiocb->iocb;
9108 /* ELS cmd tag <ulpIoTag> completes */
9109 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
9110 "0139 Ignoring ELS cmd tag x%x completion Data: "
9112 irsp->ulpIoTag, irsp->ulpStatus,
9113 irsp->un.ulpWord[4], irsp->ulpTimeout);
9114 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
9115 lpfc_ct_free_iocb(phba, cmdiocb);
9117 lpfc_els_free_iocb(phba, cmdiocb);
9122 * lpfc_sli_abort_iotag_issue - Issue abort for a command iocb
9123 * @phba: Pointer to HBA context object.
9124 * @pring: Pointer to driver SLI ring object.
9125 * @cmdiocb: Pointer to driver command iocb object.
9127 * This function issues an abort iocb for the provided command iocb down to
9128 * the port. Other than the case the outstanding command iocb is an abort
9129 * request, this function issues abort out unconditionally. This function is
9130 * called with hbalock held. The function returns 0 when it fails due to
9131 * memory allocation failure or when the command iocb is an abort request.
9134 lpfc_sli_abort_iotag_issue(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9135 struct lpfc_iocbq *cmdiocb)
9137 struct lpfc_vport *vport = cmdiocb->vport;
9138 struct lpfc_iocbq *abtsiocbp;
9139 IOCB_t *icmd = NULL;
9140 IOCB_t *iabt = NULL;
9144 * There are certain command types we don't want to abort. And we
9145 * don't want to abort commands that are already in the process of
9148 icmd = &cmdiocb->iocb;
9149 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
9150 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
9151 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
9154 /* issue ABTS for this IOCB based on iotag */
9155 abtsiocbp = __lpfc_sli_get_iocbq(phba);
9156 if (abtsiocbp == NULL)
9159 /* This signals the response to set the correct status
9160 * before calling the completion handler
9162 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
9164 iabt = &abtsiocbp->iocb;
9165 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
9166 iabt->un.acxri.abortContextTag = icmd->ulpContext;
9167 if (phba->sli_rev == LPFC_SLI_REV4) {
9168 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
9169 iabt->un.acxri.abortContextTag = cmdiocb->iotag;
9172 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
9174 iabt->ulpClass = icmd->ulpClass;
9176 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
9177 abtsiocbp->fcp_wqidx = cmdiocb->fcp_wqidx;
9178 if (cmdiocb->iocb_flag & LPFC_IO_FCP)
9179 abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
9181 if (phba->link_state >= LPFC_LINK_UP)
9182 iabt->ulpCommand = CMD_ABORT_XRI_CN;
9184 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
9186 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
9188 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
9189 "0339 Abort xri x%x, original iotag x%x, "
9190 "abort cmd iotag x%x\n",
9191 iabt->un.acxri.abortIoTag,
9192 iabt->un.acxri.abortContextTag,
9194 retval = __lpfc_sli_issue_iocb(phba, pring->ringno, abtsiocbp, 0);
9197 __lpfc_sli_release_iocbq(phba, abtsiocbp);
9200 * Caller to this routine should check for IOCB_ERROR
9201 * and handle it properly. This routine no longer removes
9202 * iocb off txcmplq and call compl in case of IOCB_ERROR.
9208 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
9209 * @phba: Pointer to HBA context object.
9210 * @pring: Pointer to driver SLI ring object.
9211 * @cmdiocb: Pointer to driver command iocb object.
9213 * This function issues an abort iocb for the provided command iocb. In case
9214 * of unloading, the abort iocb will not be issued to commands on the ELS
9215 * ring. Instead, the callback function shall be changed to those commands
9216 * so that nothing happens when them finishes. This function is called with
9217 * hbalock held. The function returns 0 when the command iocb is an abort
9221 lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9222 struct lpfc_iocbq *cmdiocb)
9224 struct lpfc_vport *vport = cmdiocb->vport;
9225 int retval = IOCB_ERROR;
9226 IOCB_t *icmd = NULL;
9229 * There are certain command types we don't want to abort. And we
9230 * don't want to abort commands that are already in the process of
9233 icmd = &cmdiocb->iocb;
9234 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
9235 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
9236 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
9240 * If we're unloading, don't abort iocb on the ELS ring, but change
9241 * the callback so that nothing happens when it finishes.
9243 if ((vport->load_flag & FC_UNLOADING) &&
9244 (pring->ringno == LPFC_ELS_RING)) {
9245 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
9246 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
9248 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
9249 goto abort_iotag_exit;
9252 /* Now, we try to issue the abort to the cmdiocb out */
9253 retval = lpfc_sli_abort_iotag_issue(phba, pring, cmdiocb);
9257 * Caller to this routine should check for IOCB_ERROR
9258 * and handle it properly. This routine no longer removes
9259 * iocb off txcmplq and call compl in case of IOCB_ERROR.
9265 * lpfc_sli_iocb_ring_abort - Unconditionally abort all iocbs on an iocb ring
9266 * @phba: Pointer to HBA context object.
9267 * @pring: Pointer to driver SLI ring object.
9269 * This function aborts all iocbs in the given ring and frees all the iocb
9270 * objects in txq. This function issues abort iocbs unconditionally for all
9271 * the iocb commands in txcmplq. The iocbs in the txcmplq is not guaranteed
9272 * to complete before the return of this function. The caller is not required
9273 * to hold any locks.
9276 lpfc_sli_iocb_ring_abort(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
9278 LIST_HEAD(completions);
9279 struct lpfc_iocbq *iocb, *next_iocb;
9281 if (pring->ringno == LPFC_ELS_RING)
9282 lpfc_fabric_abort_hba(phba);
9284 spin_lock_irq(&phba->hbalock);
9286 /* Take off all the iocbs on txq for cancelling */
9287 list_splice_init(&pring->txq, &completions);
9290 /* Next issue ABTS for everything on the txcmplq */
9291 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
9292 lpfc_sli_abort_iotag_issue(phba, pring, iocb);
9294 spin_unlock_irq(&phba->hbalock);
9296 /* Cancel all the IOCBs from the completions list */
9297 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9302 * lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
9303 * @phba: pointer to lpfc HBA data structure.
9305 * This routine will abort all pending and outstanding iocbs to an HBA.
9308 lpfc_sli_hba_iocb_abort(struct lpfc_hba *phba)
9310 struct lpfc_sli *psli = &phba->sli;
9311 struct lpfc_sli_ring *pring;
9314 for (i = 0; i < psli->num_rings; i++) {
9315 pring = &psli->ring[i];
9316 lpfc_sli_iocb_ring_abort(phba, pring);
9321 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
9322 * @iocbq: Pointer to driver iocb object.
9323 * @vport: Pointer to driver virtual port object.
9324 * @tgt_id: SCSI ID of the target.
9325 * @lun_id: LUN ID of the scsi device.
9326 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
9328 * This function acts as an iocb filter for functions which abort or count
9329 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
9330 * 0 if the filtering criteria is met for the given iocb and will return
9331 * 1 if the filtering criteria is not met.
9332 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
9333 * given iocb is for the SCSI device specified by vport, tgt_id and
9335 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
9336 * given iocb is for the SCSI target specified by vport and tgt_id
9338 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
9339 * given iocb is for the SCSI host associated with the given vport.
9340 * This function is called with no locks held.
9343 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
9344 uint16_t tgt_id, uint64_t lun_id,
9345 lpfc_ctx_cmd ctx_cmd)
9347 struct lpfc_scsi_buf *lpfc_cmd;
9350 if (!(iocbq->iocb_flag & LPFC_IO_FCP))
9353 if (iocbq->vport != vport)
9356 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
9358 if (lpfc_cmd->pCmd == NULL)
9363 if ((lpfc_cmd->rdata->pnode) &&
9364 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
9365 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
9369 if ((lpfc_cmd->rdata->pnode) &&
9370 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
9377 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
9386 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
9387 * @vport: Pointer to virtual port.
9388 * @tgt_id: SCSI ID of the target.
9389 * @lun_id: LUN ID of the scsi device.
9390 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
9392 * This function returns number of FCP commands pending for the vport.
9393 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
9394 * commands pending on the vport associated with SCSI device specified
9395 * by tgt_id and lun_id parameters.
9396 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
9397 * commands pending on the vport associated with SCSI target specified
9398 * by tgt_id parameter.
9399 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
9400 * commands pending on the vport.
9401 * This function returns the number of iocbs which satisfy the filter.
9402 * This function is called without any lock held.
9405 lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
9406 lpfc_ctx_cmd ctx_cmd)
9408 struct lpfc_hba *phba = vport->phba;
9409 struct lpfc_iocbq *iocbq;
9412 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
9413 iocbq = phba->sli.iocbq_lookup[i];
9415 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
9424 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
9425 * @phba: Pointer to HBA context object
9426 * @cmdiocb: Pointer to command iocb object.
9427 * @rspiocb: Pointer to response iocb object.
9429 * This function is called when an aborted FCP iocb completes. This
9430 * function is called by the ring event handler with no lock held.
9431 * This function frees the iocb.
9434 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9435 struct lpfc_iocbq *rspiocb)
9437 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9438 "3096 ABORT_XRI_CN completing on xri x%x "
9439 "original iotag x%x, abort cmd iotag x%x "
9440 "status 0x%x, reason 0x%x\n",
9441 cmdiocb->iocb.un.acxri.abortContextTag,
9442 cmdiocb->iocb.un.acxri.abortIoTag,
9443 cmdiocb->iotag, rspiocb->iocb.ulpStatus,
9444 rspiocb->iocb.un.ulpWord[4]);
9445 lpfc_sli_release_iocbq(phba, cmdiocb);
9450 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
9451 * @vport: Pointer to virtual port.
9452 * @pring: Pointer to driver SLI ring object.
9453 * @tgt_id: SCSI ID of the target.
9454 * @lun_id: LUN ID of the scsi device.
9455 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
9457 * This function sends an abort command for every SCSI command
9458 * associated with the given virtual port pending on the ring
9459 * filtered by lpfc_sli_validate_fcp_iocb function.
9460 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
9461 * FCP iocbs associated with lun specified by tgt_id and lun_id
9463 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
9464 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
9465 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
9466 * FCP iocbs associated with virtual port.
9467 * This function returns number of iocbs it failed to abort.
9468 * This function is called with no locks held.
9471 lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
9472 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
9474 struct lpfc_hba *phba = vport->phba;
9475 struct lpfc_iocbq *iocbq;
9476 struct lpfc_iocbq *abtsiocb;
9478 int errcnt = 0, ret_val = 0;
9481 for (i = 1; i <= phba->sli.last_iotag; i++) {
9482 iocbq = phba->sli.iocbq_lookup[i];
9484 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
9488 /* issue ABTS for this IOCB based on iotag */
9489 abtsiocb = lpfc_sli_get_iocbq(phba);
9490 if (abtsiocb == NULL) {
9496 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
9497 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
9498 if (phba->sli_rev == LPFC_SLI_REV4)
9499 abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
9501 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
9502 abtsiocb->iocb.ulpLe = 1;
9503 abtsiocb->iocb.ulpClass = cmd->ulpClass;
9504 abtsiocb->vport = phba->pport;
9506 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
9507 abtsiocb->fcp_wqidx = iocbq->fcp_wqidx;
9508 if (iocbq->iocb_flag & LPFC_IO_FCP)
9509 abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
9511 if (lpfc_is_link_up(phba))
9512 abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
9514 abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
9516 /* Setup callback routine and issue the command. */
9517 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
9518 ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
9520 if (ret_val == IOCB_ERROR) {
9521 lpfc_sli_release_iocbq(phba, abtsiocb);
9531 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
9532 * @phba: Pointer to HBA context object.
9533 * @cmdiocbq: Pointer to command iocb.
9534 * @rspiocbq: Pointer to response iocb.
9536 * This function is the completion handler for iocbs issued using
9537 * lpfc_sli_issue_iocb_wait function. This function is called by the
9538 * ring event handler function without any lock held. This function
9539 * can be called from both worker thread context and interrupt
9540 * context. This function also can be called from other thread which
9541 * cleans up the SLI layer objects.
9542 * This function copy the contents of the response iocb to the
9543 * response iocb memory object provided by the caller of
9544 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
9545 * sleeps for the iocb completion.
9548 lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
9549 struct lpfc_iocbq *cmdiocbq,
9550 struct lpfc_iocbq *rspiocbq)
9552 wait_queue_head_t *pdone_q;
9553 unsigned long iflags;
9554 struct lpfc_scsi_buf *lpfc_cmd;
9556 spin_lock_irqsave(&phba->hbalock, iflags);
9557 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
9558 if (cmdiocbq->context2 && rspiocbq)
9559 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
9560 &rspiocbq->iocb, sizeof(IOCB_t));
9562 /* Set the exchange busy flag for task management commands */
9563 if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) &&
9564 !(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) {
9565 lpfc_cmd = container_of(cmdiocbq, struct lpfc_scsi_buf,
9567 lpfc_cmd->exch_busy = rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY;
9570 pdone_q = cmdiocbq->context_un.wait_queue;
9573 spin_unlock_irqrestore(&phba->hbalock, iflags);
9578 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
9579 * @phba: Pointer to HBA context object..
9580 * @piocbq: Pointer to command iocb.
9581 * @flag: Flag to test.
9583 * This routine grabs the hbalock and then test the iocb_flag to
9584 * see if the passed in flag is set.
9587 * 0 if flag is not set.
9590 lpfc_chk_iocb_flg(struct lpfc_hba *phba,
9591 struct lpfc_iocbq *piocbq, uint32_t flag)
9593 unsigned long iflags;
9596 spin_lock_irqsave(&phba->hbalock, iflags);
9597 ret = piocbq->iocb_flag & flag;
9598 spin_unlock_irqrestore(&phba->hbalock, iflags);
9604 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
9605 * @phba: Pointer to HBA context object..
9606 * @pring: Pointer to sli ring.
9607 * @piocb: Pointer to command iocb.
9608 * @prspiocbq: Pointer to response iocb.
9609 * @timeout: Timeout in number of seconds.
9611 * This function issues the iocb to firmware and waits for the
9612 * iocb to complete. If the iocb command is not
9613 * completed within timeout seconds, it returns IOCB_TIMEDOUT.
9614 * Caller should not free the iocb resources if this function
9615 * returns IOCB_TIMEDOUT.
9616 * The function waits for the iocb completion using an
9617 * non-interruptible wait.
9618 * This function will sleep while waiting for iocb completion.
9619 * So, this function should not be called from any context which
9620 * does not allow sleeping. Due to the same reason, this function
9621 * cannot be called with interrupt disabled.
9622 * This function assumes that the iocb completions occur while
9623 * this function sleep. So, this function cannot be called from
9624 * the thread which process iocb completion for this ring.
9625 * This function clears the iocb_flag of the iocb object before
9626 * issuing the iocb and the iocb completion handler sets this
9627 * flag and wakes this thread when the iocb completes.
9628 * The contents of the response iocb will be copied to prspiocbq
9629 * by the completion handler when the command completes.
9630 * This function returns IOCB_SUCCESS when success.
9631 * This function is called with no lock held.
9634 lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
9635 uint32_t ring_number,
9636 struct lpfc_iocbq *piocb,
9637 struct lpfc_iocbq *prspiocbq,
9640 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
9641 long timeleft, timeout_req = 0;
9642 int retval = IOCB_SUCCESS;
9644 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
9646 * If the caller has provided a response iocbq buffer, then context2
9647 * is NULL or its an error.
9650 if (piocb->context2)
9652 piocb->context2 = prspiocbq;
9655 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
9656 piocb->context_un.wait_queue = &done_q;
9657 piocb->iocb_flag &= ~LPFC_IO_WAKE;
9659 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
9660 if (lpfc_readl(phba->HCregaddr, &creg_val))
9662 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
9663 writel(creg_val, phba->HCregaddr);
9664 readl(phba->HCregaddr); /* flush */
9667 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb,
9669 if (retval == IOCB_SUCCESS) {
9670 timeout_req = timeout * HZ;
9671 timeleft = wait_event_timeout(done_q,
9672 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
9675 if (piocb->iocb_flag & LPFC_IO_WAKE) {
9676 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9677 "0331 IOCB wake signaled\n");
9678 } else if (timeleft == 0) {
9679 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9680 "0338 IOCB wait timeout error - no "
9681 "wake response Data x%x\n", timeout);
9682 retval = IOCB_TIMEDOUT;
9684 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9685 "0330 IOCB wake NOT set, "
9687 timeout, (timeleft / jiffies));
9688 retval = IOCB_TIMEDOUT;
9690 } else if (retval == IOCB_BUSY) {
9691 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9692 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
9693 phba->iocb_cnt, pring->txq_cnt, pring->txcmplq_cnt);
9696 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9697 "0332 IOCB wait issue failed, Data x%x\n",
9699 retval = IOCB_ERROR;
9702 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
9703 if (lpfc_readl(phba->HCregaddr, &creg_val))
9705 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
9706 writel(creg_val, phba->HCregaddr);
9707 readl(phba->HCregaddr); /* flush */
9711 piocb->context2 = NULL;
9713 piocb->context_un.wait_queue = NULL;
9714 piocb->iocb_cmpl = NULL;
9719 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
9720 * @phba: Pointer to HBA context object.
9721 * @pmboxq: Pointer to driver mailbox object.
9722 * @timeout: Timeout in number of seconds.
9724 * This function issues the mailbox to firmware and waits for the
9725 * mailbox command to complete. If the mailbox command is not
9726 * completed within timeout seconds, it returns MBX_TIMEOUT.
9727 * The function waits for the mailbox completion using an
9728 * interruptible wait. If the thread is woken up due to a
9729 * signal, MBX_TIMEOUT error is returned to the caller. Caller
9730 * should not free the mailbox resources, if this function returns
9732 * This function will sleep while waiting for mailbox completion.
9733 * So, this function should not be called from any context which
9734 * does not allow sleeping. Due to the same reason, this function
9735 * cannot be called with interrupt disabled.
9736 * This function assumes that the mailbox completion occurs while
9737 * this function sleep. So, this function cannot be called from
9738 * the worker thread which processes mailbox completion.
9739 * This function is called in the context of HBA management
9741 * This function returns MBX_SUCCESS when successful.
9742 * This function is called with no lock held.
9745 lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
9748 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
9752 /* The caller must leave context1 empty. */
9753 if (pmboxq->context1)
9754 return MBX_NOT_FINISHED;
9756 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
9757 /* setup wake call as IOCB callback */
9758 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
9759 /* setup context field to pass wait_queue pointer to wake function */
9760 pmboxq->context1 = &done_q;
9762 /* now issue the command */
9763 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
9764 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
9765 wait_event_interruptible_timeout(done_q,
9766 pmboxq->mbox_flag & LPFC_MBX_WAKE,
9769 spin_lock_irqsave(&phba->hbalock, flag);
9770 pmboxq->context1 = NULL;
9772 * if LPFC_MBX_WAKE flag is set the mailbox is completed
9773 * else do not free the resources.
9775 if (pmboxq->mbox_flag & LPFC_MBX_WAKE) {
9776 retval = MBX_SUCCESS;
9777 lpfc_sli4_swap_str(phba, pmboxq);
9779 retval = MBX_TIMEOUT;
9780 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
9782 spin_unlock_irqrestore(&phba->hbalock, flag);
9789 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
9790 * @phba: Pointer to HBA context.
9792 * This function is called to shutdown the driver's mailbox sub-system.
9793 * It first marks the mailbox sub-system is in a block state to prevent
9794 * the asynchronous mailbox command from issued off the pending mailbox
9795 * command queue. If the mailbox command sub-system shutdown is due to
9796 * HBA error conditions such as EEH or ERATT, this routine shall invoke
9797 * the mailbox sub-system flush routine to forcefully bring down the
9798 * mailbox sub-system. Otherwise, if it is due to normal condition (such
9799 * as with offline or HBA function reset), this routine will wait for the
9800 * outstanding mailbox command to complete before invoking the mailbox
9801 * sub-system flush routine to gracefully bring down mailbox sub-system.
9804 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba)
9806 struct lpfc_sli *psli = &phba->sli;
9807 unsigned long timeout;
9809 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
9810 spin_lock_irq(&phba->hbalock);
9811 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
9812 spin_unlock_irq(&phba->hbalock);
9814 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
9815 spin_lock_irq(&phba->hbalock);
9816 /* Determine how long we might wait for the active mailbox
9817 * command to be gracefully completed by firmware.
9819 if (phba->sli.mbox_active)
9820 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
9821 phba->sli.mbox_active) *
9823 spin_unlock_irq(&phba->hbalock);
9825 while (phba->sli.mbox_active) {
9826 /* Check active mailbox complete status every 2ms */
9828 if (time_after(jiffies, timeout))
9829 /* Timeout, let the mailbox flush routine to
9830 * forcefully release active mailbox command
9835 lpfc_sli_mbox_sys_flush(phba);
9839 * lpfc_sli_eratt_read - read sli-3 error attention events
9840 * @phba: Pointer to HBA context.
9842 * This function is called to read the SLI3 device error attention registers
9843 * for possible error attention events. The caller must hold the hostlock
9844 * with spin_lock_irq().
9846 * This function returns 1 when there is Error Attention in the Host Attention
9847 * Register and returns 0 otherwise.
9850 lpfc_sli_eratt_read(struct lpfc_hba *phba)
9854 /* Read chip Host Attention (HA) register */
9855 if (lpfc_readl(phba->HAregaddr, &ha_copy))
9858 if (ha_copy & HA_ERATT) {
9859 /* Read host status register to retrieve error event */
9860 if (lpfc_sli_read_hs(phba))
9863 /* Check if there is a deferred error condition is active */
9864 if ((HS_FFER1 & phba->work_hs) &&
9865 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
9866 HS_FFER6 | HS_FFER7 | HS_FFER8) & phba->work_hs)) {
9867 phba->hba_flag |= DEFER_ERATT;
9868 /* Clear all interrupt enable conditions */
9869 writel(0, phba->HCregaddr);
9870 readl(phba->HCregaddr);
9873 /* Set the driver HA work bitmap */
9874 phba->work_ha |= HA_ERATT;
9875 /* Indicate polling handles this ERATT */
9876 phba->hba_flag |= HBA_ERATT_HANDLED;
9882 /* Set the driver HS work bitmap */
9883 phba->work_hs |= UNPLUG_ERR;
9884 /* Set the driver HA work bitmap */
9885 phba->work_ha |= HA_ERATT;
9886 /* Indicate polling handles this ERATT */
9887 phba->hba_flag |= HBA_ERATT_HANDLED;
9892 * lpfc_sli4_eratt_read - read sli-4 error attention events
9893 * @phba: Pointer to HBA context.
9895 * This function is called to read the SLI4 device error attention registers
9896 * for possible error attention events. The caller must hold the hostlock
9897 * with spin_lock_irq().
9899 * This function returns 1 when there is Error Attention in the Host Attention
9900 * Register and returns 0 otherwise.
9903 lpfc_sli4_eratt_read(struct lpfc_hba *phba)
9905 uint32_t uerr_sta_hi, uerr_sta_lo;
9906 uint32_t if_type, portsmphr;
9907 struct lpfc_register portstat_reg;
9910 * For now, use the SLI4 device internal unrecoverable error
9911 * registers for error attention. This can be changed later.
9913 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9915 case LPFC_SLI_INTF_IF_TYPE_0:
9916 if (lpfc_readl(phba->sli4_hba.u.if_type0.UERRLOregaddr,
9918 lpfc_readl(phba->sli4_hba.u.if_type0.UERRHIregaddr,
9920 phba->work_hs |= UNPLUG_ERR;
9921 phba->work_ha |= HA_ERATT;
9922 phba->hba_flag |= HBA_ERATT_HANDLED;
9925 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
9926 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
9927 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9928 "1423 HBA Unrecoverable error: "
9929 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
9930 "ue_mask_lo_reg=0x%x, "
9931 "ue_mask_hi_reg=0x%x\n",
9932 uerr_sta_lo, uerr_sta_hi,
9933 phba->sli4_hba.ue_mask_lo,
9934 phba->sli4_hba.ue_mask_hi);
9935 phba->work_status[0] = uerr_sta_lo;
9936 phba->work_status[1] = uerr_sta_hi;
9937 phba->work_ha |= HA_ERATT;
9938 phba->hba_flag |= HBA_ERATT_HANDLED;
9942 case LPFC_SLI_INTF_IF_TYPE_2:
9943 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
9944 &portstat_reg.word0) ||
9945 lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
9947 phba->work_hs |= UNPLUG_ERR;
9948 phba->work_ha |= HA_ERATT;
9949 phba->hba_flag |= HBA_ERATT_HANDLED;
9952 if (bf_get(lpfc_sliport_status_err, &portstat_reg)) {
9953 phba->work_status[0] =
9954 readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
9955 phba->work_status[1] =
9956 readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
9957 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9958 "2885 Port Status Event: "
9959 "port status reg 0x%x, "
9960 "port smphr reg 0x%x, "
9961 "error 1=0x%x, error 2=0x%x\n",
9964 phba->work_status[0],
9965 phba->work_status[1]);
9966 phba->work_ha |= HA_ERATT;
9967 phba->hba_flag |= HBA_ERATT_HANDLED;
9971 case LPFC_SLI_INTF_IF_TYPE_1:
9973 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9974 "2886 HBA Error Attention on unsupported "
9975 "if type %d.", if_type);
9983 * lpfc_sli_check_eratt - check error attention events
9984 * @phba: Pointer to HBA context.
9986 * This function is called from timer soft interrupt context to check HBA's
9987 * error attention register bit for error attention events.
9989 * This function returns 1 when there is Error Attention in the Host Attention
9990 * Register and returns 0 otherwise.
9993 lpfc_sli_check_eratt(struct lpfc_hba *phba)
9997 /* If somebody is waiting to handle an eratt, don't process it
9998 * here. The brdkill function will do this.
10000 if (phba->link_flag & LS_IGNORE_ERATT)
10003 /* Check if interrupt handler handles this ERATT */
10004 spin_lock_irq(&phba->hbalock);
10005 if (phba->hba_flag & HBA_ERATT_HANDLED) {
10006 /* Interrupt handler has handled ERATT */
10007 spin_unlock_irq(&phba->hbalock);
10012 * If there is deferred error attention, do not check for error
10015 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10016 spin_unlock_irq(&phba->hbalock);
10020 /* If PCI channel is offline, don't process it */
10021 if (unlikely(pci_channel_offline(phba->pcidev))) {
10022 spin_unlock_irq(&phba->hbalock);
10026 switch (phba->sli_rev) {
10027 case LPFC_SLI_REV2:
10028 case LPFC_SLI_REV3:
10029 /* Read chip Host Attention (HA) register */
10030 ha_copy = lpfc_sli_eratt_read(phba);
10032 case LPFC_SLI_REV4:
10033 /* Read device Uncoverable Error (UERR) registers */
10034 ha_copy = lpfc_sli4_eratt_read(phba);
10037 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10038 "0299 Invalid SLI revision (%d)\n",
10043 spin_unlock_irq(&phba->hbalock);
10049 * lpfc_intr_state_check - Check device state for interrupt handling
10050 * @phba: Pointer to HBA context.
10052 * This inline routine checks whether a device or its PCI slot is in a state
10053 * that the interrupt should be handled.
10055 * This function returns 0 if the device or the PCI slot is in a state that
10056 * interrupt should be handled, otherwise -EIO.
10059 lpfc_intr_state_check(struct lpfc_hba *phba)
10061 /* If the pci channel is offline, ignore all the interrupts */
10062 if (unlikely(pci_channel_offline(phba->pcidev)))
10065 /* Update device level interrupt statistics */
10066 phba->sli.slistat.sli_intr++;
10068 /* Ignore all interrupts during initialization. */
10069 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
10076 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
10077 * @irq: Interrupt number.
10078 * @dev_id: The device context pointer.
10080 * This function is directly called from the PCI layer as an interrupt
10081 * service routine when device with SLI-3 interface spec is enabled with
10082 * MSI-X multi-message interrupt mode and there are slow-path events in
10083 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
10084 * interrupt mode, this function is called as part of the device-level
10085 * interrupt handler. When the PCI slot is in error recovery or the HBA
10086 * is undergoing initialization, the interrupt handler will not process
10087 * the interrupt. The link attention and ELS ring attention events are
10088 * handled by the worker thread. The interrupt handler signals the worker
10089 * thread and returns for these events. This function is called without
10090 * any lock held. It gets the hbalock to access and update SLI data
10093 * This function returns IRQ_HANDLED when interrupt is handled else it
10094 * returns IRQ_NONE.
10097 lpfc_sli_sp_intr_handler(int irq, void *dev_id)
10099 struct lpfc_hba *phba;
10100 uint32_t ha_copy, hc_copy;
10101 uint32_t work_ha_copy;
10102 unsigned long status;
10103 unsigned long iflag;
10106 MAILBOX_t *mbox, *pmbox;
10107 struct lpfc_vport *vport;
10108 struct lpfc_nodelist *ndlp;
10109 struct lpfc_dmabuf *mp;
10114 * Get the driver's phba structure from the dev_id and
10115 * assume the HBA is not interrupting.
10117 phba = (struct lpfc_hba *)dev_id;
10119 if (unlikely(!phba))
10123 * Stuff needs to be attented to when this function is invoked as an
10124 * individual interrupt handler in MSI-X multi-message interrupt mode
10126 if (phba->intr_type == MSIX) {
10127 /* Check device state for handling interrupt */
10128 if (lpfc_intr_state_check(phba))
10130 /* Need to read HA REG for slow-path events */
10131 spin_lock_irqsave(&phba->hbalock, iflag);
10132 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10134 /* If somebody is waiting to handle an eratt don't process it
10135 * here. The brdkill function will do this.
10137 if (phba->link_flag & LS_IGNORE_ERATT)
10138 ha_copy &= ~HA_ERATT;
10139 /* Check the need for handling ERATT in interrupt handler */
10140 if (ha_copy & HA_ERATT) {
10141 if (phba->hba_flag & HBA_ERATT_HANDLED)
10142 /* ERATT polling has handled ERATT */
10143 ha_copy &= ~HA_ERATT;
10145 /* Indicate interrupt handler handles ERATT */
10146 phba->hba_flag |= HBA_ERATT_HANDLED;
10150 * If there is deferred error attention, do not check for any
10153 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10154 spin_unlock_irqrestore(&phba->hbalock, iflag);
10158 /* Clear up only attention source related to slow-path */
10159 if (lpfc_readl(phba->HCregaddr, &hc_copy))
10162 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
10163 HC_LAINT_ENA | HC_ERINT_ENA),
10165 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
10167 writel(hc_copy, phba->HCregaddr);
10168 readl(phba->HAregaddr); /* flush */
10169 spin_unlock_irqrestore(&phba->hbalock, iflag);
10171 ha_copy = phba->ha_copy;
10173 work_ha_copy = ha_copy & phba->work_ha_mask;
10175 if (work_ha_copy) {
10176 if (work_ha_copy & HA_LATT) {
10177 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
10179 * Turn off Link Attention interrupts
10180 * until CLEAR_LA done
10182 spin_lock_irqsave(&phba->hbalock, iflag);
10183 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
10184 if (lpfc_readl(phba->HCregaddr, &control))
10186 control &= ~HC_LAINT_ENA;
10187 writel(control, phba->HCregaddr);
10188 readl(phba->HCregaddr); /* flush */
10189 spin_unlock_irqrestore(&phba->hbalock, iflag);
10192 work_ha_copy &= ~HA_LATT;
10195 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
10197 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
10198 * the only slow ring.
10200 status = (work_ha_copy &
10201 (HA_RXMASK << (4*LPFC_ELS_RING)));
10202 status >>= (4*LPFC_ELS_RING);
10203 if (status & HA_RXMASK) {
10204 spin_lock_irqsave(&phba->hbalock, iflag);
10205 if (lpfc_readl(phba->HCregaddr, &control))
10208 lpfc_debugfs_slow_ring_trc(phba,
10209 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
10211 (uint32_t)phba->sli.slistat.sli_intr);
10213 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
10214 lpfc_debugfs_slow_ring_trc(phba,
10215 "ISR Disable ring:"
10216 "pwork:x%x hawork:x%x wait:x%x",
10217 phba->work_ha, work_ha_copy,
10218 (uint32_t)((unsigned long)
10219 &phba->work_waitq));
10222 ~(HC_R0INT_ENA << LPFC_ELS_RING);
10223 writel(control, phba->HCregaddr);
10224 readl(phba->HCregaddr); /* flush */
10227 lpfc_debugfs_slow_ring_trc(phba,
10228 "ISR slow ring: pwork:"
10229 "x%x hawork:x%x wait:x%x",
10230 phba->work_ha, work_ha_copy,
10231 (uint32_t)((unsigned long)
10232 &phba->work_waitq));
10234 spin_unlock_irqrestore(&phba->hbalock, iflag);
10237 spin_lock_irqsave(&phba->hbalock, iflag);
10238 if (work_ha_copy & HA_ERATT) {
10239 if (lpfc_sli_read_hs(phba))
10242 * Check if there is a deferred error condition
10245 if ((HS_FFER1 & phba->work_hs) &&
10246 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
10247 HS_FFER6 | HS_FFER7 | HS_FFER8) &
10249 phba->hba_flag |= DEFER_ERATT;
10250 /* Clear all interrupt enable conditions */
10251 writel(0, phba->HCregaddr);
10252 readl(phba->HCregaddr);
10256 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
10257 pmb = phba->sli.mbox_active;
10258 pmbox = &pmb->u.mb;
10260 vport = pmb->vport;
10262 /* First check out the status word */
10263 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
10264 if (pmbox->mbxOwner != OWN_HOST) {
10265 spin_unlock_irqrestore(&phba->hbalock, iflag);
10267 * Stray Mailbox Interrupt, mbxCommand <cmd>
10268 * mbxStatus <status>
10270 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
10272 "(%d):0304 Stray Mailbox "
10273 "Interrupt mbxCommand x%x "
10275 (vport ? vport->vpi : 0),
10278 /* clear mailbox attention bit */
10279 work_ha_copy &= ~HA_MBATT;
10281 phba->sli.mbox_active = NULL;
10282 spin_unlock_irqrestore(&phba->hbalock, iflag);
10283 phba->last_completion_time = jiffies;
10284 del_timer(&phba->sli.mbox_tmo);
10285 if (pmb->mbox_cmpl) {
10286 lpfc_sli_pcimem_bcopy(mbox, pmbox,
10288 if (pmb->out_ext_byte_len &&
10290 lpfc_sli_pcimem_bcopy(
10293 pmb->out_ext_byte_len);
10295 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
10296 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
10298 lpfc_debugfs_disc_trc(vport,
10299 LPFC_DISC_TRC_MBOX_VPORT,
10300 "MBOX dflt rpi: : "
10301 "status:x%x rpi:x%x",
10302 (uint32_t)pmbox->mbxStatus,
10303 pmbox->un.varWords[0], 0);
10305 if (!pmbox->mbxStatus) {
10306 mp = (struct lpfc_dmabuf *)
10308 ndlp = (struct lpfc_nodelist *)
10311 /* Reg_LOGIN of dflt RPI was
10312 * successful. new lets get
10313 * rid of the RPI using the
10314 * same mbox buffer.
10316 lpfc_unreg_login(phba,
10318 pmbox->un.varWords[0],
10321 lpfc_mbx_cmpl_dflt_rpi;
10322 pmb->context1 = mp;
10323 pmb->context2 = ndlp;
10324 pmb->vport = vport;
10325 rc = lpfc_sli_issue_mbox(phba,
10328 if (rc != MBX_BUSY)
10329 lpfc_printf_log(phba,
10331 LOG_MBOX | LOG_SLI,
10332 "0350 rc should have"
10333 "been MBX_BUSY\n");
10334 if (rc != MBX_NOT_FINISHED)
10335 goto send_current_mbox;
10339 &phba->pport->work_port_lock,
10341 phba->pport->work_port_events &=
10343 spin_unlock_irqrestore(
10344 &phba->pport->work_port_lock,
10346 lpfc_mbox_cmpl_put(phba, pmb);
10349 spin_unlock_irqrestore(&phba->hbalock, iflag);
10351 if ((work_ha_copy & HA_MBATT) &&
10352 (phba->sli.mbox_active == NULL)) {
10354 /* Process next mailbox command if there is one */
10356 rc = lpfc_sli_issue_mbox(phba, NULL,
10358 } while (rc == MBX_NOT_FINISHED);
10359 if (rc != MBX_SUCCESS)
10360 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
10361 LOG_SLI, "0349 rc should be "
10365 spin_lock_irqsave(&phba->hbalock, iflag);
10366 phba->work_ha |= work_ha_copy;
10367 spin_unlock_irqrestore(&phba->hbalock, iflag);
10368 lpfc_worker_wake_up(phba);
10370 return IRQ_HANDLED;
10372 spin_unlock_irqrestore(&phba->hbalock, iflag);
10373 return IRQ_HANDLED;
10375 } /* lpfc_sli_sp_intr_handler */
10378 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
10379 * @irq: Interrupt number.
10380 * @dev_id: The device context pointer.
10382 * This function is directly called from the PCI layer as an interrupt
10383 * service routine when device with SLI-3 interface spec is enabled with
10384 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
10385 * ring event in the HBA. However, when the device is enabled with either
10386 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
10387 * device-level interrupt handler. When the PCI slot is in error recovery
10388 * or the HBA is undergoing initialization, the interrupt handler will not
10389 * process the interrupt. The SCSI FCP fast-path ring event are handled in
10390 * the intrrupt context. This function is called without any lock held.
10391 * It gets the hbalock to access and update SLI data structures.
10393 * This function returns IRQ_HANDLED when interrupt is handled else it
10394 * returns IRQ_NONE.
10397 lpfc_sli_fp_intr_handler(int irq, void *dev_id)
10399 struct lpfc_hba *phba;
10401 unsigned long status;
10402 unsigned long iflag;
10404 /* Get the driver's phba structure from the dev_id and
10405 * assume the HBA is not interrupting.
10407 phba = (struct lpfc_hba *) dev_id;
10409 if (unlikely(!phba))
10413 * Stuff needs to be attented to when this function is invoked as an
10414 * individual interrupt handler in MSI-X multi-message interrupt mode
10416 if (phba->intr_type == MSIX) {
10417 /* Check device state for handling interrupt */
10418 if (lpfc_intr_state_check(phba))
10420 /* Need to read HA REG for FCP ring and other ring events */
10421 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10422 return IRQ_HANDLED;
10423 /* Clear up only attention source related to fast-path */
10424 spin_lock_irqsave(&phba->hbalock, iflag);
10426 * If there is deferred error attention, do not check for
10429 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10430 spin_unlock_irqrestore(&phba->hbalock, iflag);
10433 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
10435 readl(phba->HAregaddr); /* flush */
10436 spin_unlock_irqrestore(&phba->hbalock, iflag);
10438 ha_copy = phba->ha_copy;
10441 * Process all events on FCP ring. Take the optimized path for FCP IO.
10443 ha_copy &= ~(phba->work_ha_mask);
10445 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
10446 status >>= (4*LPFC_FCP_RING);
10447 if (status & HA_RXMASK)
10448 lpfc_sli_handle_fast_ring_event(phba,
10449 &phba->sli.ring[LPFC_FCP_RING],
10452 if (phba->cfg_multi_ring_support == 2) {
10454 * Process all events on extra ring. Take the optimized path
10455 * for extra ring IO.
10457 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
10458 status >>= (4*LPFC_EXTRA_RING);
10459 if (status & HA_RXMASK) {
10460 lpfc_sli_handle_fast_ring_event(phba,
10461 &phba->sli.ring[LPFC_EXTRA_RING],
10465 return IRQ_HANDLED;
10466 } /* lpfc_sli_fp_intr_handler */
10469 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
10470 * @irq: Interrupt number.
10471 * @dev_id: The device context pointer.
10473 * This function is the HBA device-level interrupt handler to device with
10474 * SLI-3 interface spec, called from the PCI layer when either MSI or
10475 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
10476 * requires driver attention. This function invokes the slow-path interrupt
10477 * attention handling function and fast-path interrupt attention handling
10478 * function in turn to process the relevant HBA attention events. This
10479 * function is called without any lock held. It gets the hbalock to access
10480 * and update SLI data structures.
10482 * This function returns IRQ_HANDLED when interrupt is handled, else it
10483 * returns IRQ_NONE.
10486 lpfc_sli_intr_handler(int irq, void *dev_id)
10488 struct lpfc_hba *phba;
10489 irqreturn_t sp_irq_rc, fp_irq_rc;
10490 unsigned long status1, status2;
10494 * Get the driver's phba structure from the dev_id and
10495 * assume the HBA is not interrupting.
10497 phba = (struct lpfc_hba *) dev_id;
10499 if (unlikely(!phba))
10502 /* Check device state for handling interrupt */
10503 if (lpfc_intr_state_check(phba))
10506 spin_lock(&phba->hbalock);
10507 if (lpfc_readl(phba->HAregaddr, &phba->ha_copy)) {
10508 spin_unlock(&phba->hbalock);
10509 return IRQ_HANDLED;
10512 if (unlikely(!phba->ha_copy)) {
10513 spin_unlock(&phba->hbalock);
10515 } else if (phba->ha_copy & HA_ERATT) {
10516 if (phba->hba_flag & HBA_ERATT_HANDLED)
10517 /* ERATT polling has handled ERATT */
10518 phba->ha_copy &= ~HA_ERATT;
10520 /* Indicate interrupt handler handles ERATT */
10521 phba->hba_flag |= HBA_ERATT_HANDLED;
10525 * If there is deferred error attention, do not check for any interrupt.
10527 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10528 spin_unlock(&phba->hbalock);
10532 /* Clear attention sources except link and error attentions */
10533 if (lpfc_readl(phba->HCregaddr, &hc_copy)) {
10534 spin_unlock(&phba->hbalock);
10535 return IRQ_HANDLED;
10537 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
10538 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
10540 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
10541 writel(hc_copy, phba->HCregaddr);
10542 readl(phba->HAregaddr); /* flush */
10543 spin_unlock(&phba->hbalock);
10546 * Invokes slow-path host attention interrupt handling as appropriate.
10549 /* status of events with mailbox and link attention */
10550 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
10552 /* status of events with ELS ring */
10553 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
10554 status2 >>= (4*LPFC_ELS_RING);
10556 if (status1 || (status2 & HA_RXMASK))
10557 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
10559 sp_irq_rc = IRQ_NONE;
10562 * Invoke fast-path host attention interrupt handling as appropriate.
10565 /* status of events with FCP ring */
10566 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
10567 status1 >>= (4*LPFC_FCP_RING);
10569 /* status of events with extra ring */
10570 if (phba->cfg_multi_ring_support == 2) {
10571 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
10572 status2 >>= (4*LPFC_EXTRA_RING);
10576 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
10577 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
10579 fp_irq_rc = IRQ_NONE;
10581 /* Return device-level interrupt handling status */
10582 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
10583 } /* lpfc_sli_intr_handler */
10586 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
10587 * @phba: pointer to lpfc hba data structure.
10589 * This routine is invoked by the worker thread to process all the pending
10590 * SLI4 FCP abort XRI events.
10592 void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba)
10594 struct lpfc_cq_event *cq_event;
10596 /* First, declare the fcp xri abort event has been handled */
10597 spin_lock_irq(&phba->hbalock);
10598 phba->hba_flag &= ~FCP_XRI_ABORT_EVENT;
10599 spin_unlock_irq(&phba->hbalock);
10600 /* Now, handle all the fcp xri abort events */
10601 while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) {
10602 /* Get the first event from the head of the event queue */
10603 spin_lock_irq(&phba->hbalock);
10604 list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
10605 cq_event, struct lpfc_cq_event, list);
10606 spin_unlock_irq(&phba->hbalock);
10607 /* Notify aborted XRI for FCP work queue */
10608 lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
10609 /* Free the event processed back to the free pool */
10610 lpfc_sli4_cq_event_release(phba, cq_event);
10615 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
10616 * @phba: pointer to lpfc hba data structure.
10618 * This routine is invoked by the worker thread to process all the pending
10619 * SLI4 els abort xri events.
10621 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
10623 struct lpfc_cq_event *cq_event;
10625 /* First, declare the els xri abort event has been handled */
10626 spin_lock_irq(&phba->hbalock);
10627 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
10628 spin_unlock_irq(&phba->hbalock);
10629 /* Now, handle all the els xri abort events */
10630 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
10631 /* Get the first event from the head of the event queue */
10632 spin_lock_irq(&phba->hbalock);
10633 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
10634 cq_event, struct lpfc_cq_event, list);
10635 spin_unlock_irq(&phba->hbalock);
10636 /* Notify aborted XRI for ELS work queue */
10637 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
10638 /* Free the event processed back to the free pool */
10639 lpfc_sli4_cq_event_release(phba, cq_event);
10644 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
10645 * @phba: pointer to lpfc hba data structure
10646 * @pIocbIn: pointer to the rspiocbq
10647 * @pIocbOut: pointer to the cmdiocbq
10648 * @wcqe: pointer to the complete wcqe
10650 * This routine transfers the fields of a command iocbq to a response iocbq
10651 * by copying all the IOCB fields from command iocbq and transferring the
10652 * completion status information from the complete wcqe.
10655 lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
10656 struct lpfc_iocbq *pIocbIn,
10657 struct lpfc_iocbq *pIocbOut,
10658 struct lpfc_wcqe_complete *wcqe)
10660 unsigned long iflags;
10662 size_t offset = offsetof(struct lpfc_iocbq, iocb);
10664 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
10665 sizeof(struct lpfc_iocbq) - offset);
10666 /* Map WCQE parameters into irspiocb parameters */
10667 status = bf_get(lpfc_wcqe_c_status, wcqe);
10668 pIocbIn->iocb.ulpStatus = (status & LPFC_IOCB_STATUS_MASK);
10669 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
10670 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
10671 pIocbIn->iocb.un.fcpi.fcpi_parm =
10672 pIocbOut->iocb.un.fcpi.fcpi_parm -
10673 wcqe->total_data_placed;
10675 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
10677 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
10678 pIocbIn->iocb.un.genreq64.bdl.bdeSize = wcqe->total_data_placed;
10681 /* Convert BG errors for completion status */
10682 if (status == CQE_STATUS_DI_ERROR) {
10683 pIocbIn->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
10685 if (bf_get(lpfc_wcqe_c_bg_edir, wcqe))
10686 pIocbIn->iocb.un.ulpWord[4] = IOERR_RX_DMA_FAILED;
10688 pIocbIn->iocb.un.ulpWord[4] = IOERR_TX_DMA_FAILED;
10690 pIocbIn->iocb.unsli3.sli3_bg.bgstat = 0;
10691 if (bf_get(lpfc_wcqe_c_bg_ge, wcqe)) /* Guard Check failed */
10692 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
10693 BGS_GUARD_ERR_MASK;
10694 if (bf_get(lpfc_wcqe_c_bg_ae, wcqe)) /* App Tag Check failed */
10695 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
10696 BGS_APPTAG_ERR_MASK;
10697 if (bf_get(lpfc_wcqe_c_bg_re, wcqe)) /* Ref Tag Check failed */
10698 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
10699 BGS_REFTAG_ERR_MASK;
10701 /* Check to see if there was any good data before the error */
10702 if (bf_get(lpfc_wcqe_c_bg_tdpv, wcqe)) {
10703 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
10704 BGS_HI_WATER_MARK_PRESENT_MASK;
10705 pIocbIn->iocb.unsli3.sli3_bg.bghm =
10706 wcqe->total_data_placed;
10710 * Set ALL the error bits to indicate we don't know what
10711 * type of error it is.
10713 if (!pIocbIn->iocb.unsli3.sli3_bg.bgstat)
10714 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
10715 (BGS_REFTAG_ERR_MASK | BGS_APPTAG_ERR_MASK |
10716 BGS_GUARD_ERR_MASK);
10719 /* Pick up HBA exchange busy condition */
10720 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
10721 spin_lock_irqsave(&phba->hbalock, iflags);
10722 pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY;
10723 spin_unlock_irqrestore(&phba->hbalock, iflags);
10728 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
10729 * @phba: Pointer to HBA context object.
10730 * @wcqe: Pointer to work-queue completion queue entry.
10732 * This routine handles an ELS work-queue completion event and construct
10733 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
10734 * discovery engine to handle.
10736 * Return: Pointer to the receive IOCBQ, NULL otherwise.
10738 static struct lpfc_iocbq *
10739 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
10740 struct lpfc_iocbq *irspiocbq)
10742 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
10743 struct lpfc_iocbq *cmdiocbq;
10744 struct lpfc_wcqe_complete *wcqe;
10745 unsigned long iflags;
10747 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
10748 spin_lock_irqsave(&phba->hbalock, iflags);
10749 pring->stats.iocb_event++;
10750 /* Look up the ELS command IOCB and create pseudo response IOCB */
10751 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
10752 bf_get(lpfc_wcqe_c_request_tag, wcqe));
10753 spin_unlock_irqrestore(&phba->hbalock, iflags);
10755 if (unlikely(!cmdiocbq)) {
10756 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
10757 "0386 ELS complete with no corresponding "
10758 "cmdiocb: iotag (%d)\n",
10759 bf_get(lpfc_wcqe_c_request_tag, wcqe));
10760 lpfc_sli_release_iocbq(phba, irspiocbq);
10764 /* Fake the irspiocbq and copy necessary response information */
10765 lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe);
10771 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
10772 * @phba: Pointer to HBA context object.
10773 * @cqe: Pointer to mailbox completion queue entry.
10775 * This routine process a mailbox completion queue entry with asynchrous
10778 * Return: true if work posted to worker thread, otherwise false.
10781 lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
10783 struct lpfc_cq_event *cq_event;
10784 unsigned long iflags;
10786 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10787 "0392 Async Event: word0:x%x, word1:x%x, "
10788 "word2:x%x, word3:x%x\n", mcqe->word0,
10789 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
10791 /* Allocate a new internal CQ_EVENT entry */
10792 cq_event = lpfc_sli4_cq_event_alloc(phba);
10794 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10795 "0394 Failed to allocate CQ_EVENT entry\n");
10799 /* Move the CQE into an asynchronous event entry */
10800 memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe));
10801 spin_lock_irqsave(&phba->hbalock, iflags);
10802 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
10803 /* Set the async event flag */
10804 phba->hba_flag |= ASYNC_EVENT;
10805 spin_unlock_irqrestore(&phba->hbalock, iflags);
10811 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
10812 * @phba: Pointer to HBA context object.
10813 * @cqe: Pointer to mailbox completion queue entry.
10815 * This routine process a mailbox completion queue entry with mailbox
10816 * completion event.
10818 * Return: true if work posted to worker thread, otherwise false.
10821 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
10823 uint32_t mcqe_status;
10824 MAILBOX_t *mbox, *pmbox;
10825 struct lpfc_mqe *mqe;
10826 struct lpfc_vport *vport;
10827 struct lpfc_nodelist *ndlp;
10828 struct lpfc_dmabuf *mp;
10829 unsigned long iflags;
10831 bool workposted = false;
10834 /* If not a mailbox complete MCQE, out by checking mailbox consume */
10835 if (!bf_get(lpfc_trailer_completed, mcqe))
10836 goto out_no_mqe_complete;
10838 /* Get the reference to the active mbox command */
10839 spin_lock_irqsave(&phba->hbalock, iflags);
10840 pmb = phba->sli.mbox_active;
10841 if (unlikely(!pmb)) {
10842 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
10843 "1832 No pending MBOX command to handle\n");
10844 spin_unlock_irqrestore(&phba->hbalock, iflags);
10845 goto out_no_mqe_complete;
10847 spin_unlock_irqrestore(&phba->hbalock, iflags);
10849 pmbox = (MAILBOX_t *)&pmb->u.mqe;
10851 vport = pmb->vport;
10853 /* Reset heartbeat timer */
10854 phba->last_completion_time = jiffies;
10855 del_timer(&phba->sli.mbox_tmo);
10857 /* Move mbox data to caller's mailbox region, do endian swapping */
10858 if (pmb->mbox_cmpl && mbox)
10859 lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
10862 * For mcqe errors, conditionally move a modified error code to
10863 * the mbox so that the error will not be missed.
10865 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
10866 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
10867 if (bf_get(lpfc_mqe_status, mqe) == MBX_SUCCESS)
10868 bf_set(lpfc_mqe_status, mqe,
10869 (LPFC_MBX_ERROR_RANGE | mcqe_status));
10871 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
10872 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
10873 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
10874 "MBOX dflt rpi: status:x%x rpi:x%x",
10876 pmbox->un.varWords[0], 0);
10877 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
10878 mp = (struct lpfc_dmabuf *)(pmb->context1);
10879 ndlp = (struct lpfc_nodelist *)pmb->context2;
10880 /* Reg_LOGIN of dflt RPI was successful. Now lets get
10881 * RID of the PPI using the same mbox buffer.
10883 lpfc_unreg_login(phba, vport->vpi,
10884 pmbox->un.varWords[0], pmb);
10885 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
10886 pmb->context1 = mp;
10887 pmb->context2 = ndlp;
10888 pmb->vport = vport;
10889 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
10890 if (rc != MBX_BUSY)
10891 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
10892 LOG_SLI, "0385 rc should "
10893 "have been MBX_BUSY\n");
10894 if (rc != MBX_NOT_FINISHED)
10895 goto send_current_mbox;
10898 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
10899 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
10900 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
10902 /* There is mailbox completion work to do */
10903 spin_lock_irqsave(&phba->hbalock, iflags);
10904 __lpfc_mbox_cmpl_put(phba, pmb);
10905 phba->work_ha |= HA_MBATT;
10906 spin_unlock_irqrestore(&phba->hbalock, iflags);
10910 spin_lock_irqsave(&phba->hbalock, iflags);
10911 /* Release the mailbox command posting token */
10912 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
10913 /* Setting active mailbox pointer need to be in sync to flag clear */
10914 phba->sli.mbox_active = NULL;
10915 spin_unlock_irqrestore(&phba->hbalock, iflags);
10916 /* Wake up worker thread to post the next pending mailbox command */
10917 lpfc_worker_wake_up(phba);
10918 out_no_mqe_complete:
10919 if (bf_get(lpfc_trailer_consumed, mcqe))
10920 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
10925 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
10926 * @phba: Pointer to HBA context object.
10927 * @cqe: Pointer to mailbox completion queue entry.
10929 * This routine process a mailbox completion queue entry, it invokes the
10930 * proper mailbox complete handling or asynchrous event handling routine
10931 * according to the MCQE's async bit.
10933 * Return: true if work posted to worker thread, otherwise false.
10936 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
10938 struct lpfc_mcqe mcqe;
10941 /* Copy the mailbox MCQE and convert endian order as needed */
10942 lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
10944 /* Invoke the proper event handling routine */
10945 if (!bf_get(lpfc_trailer_async, &mcqe))
10946 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
10948 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
10953 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
10954 * @phba: Pointer to HBA context object.
10955 * @wcqe: Pointer to work-queue completion queue entry.
10957 * This routine handles an ELS work-queue completion event.
10959 * Return: true if work posted to worker thread, otherwise false.
10962 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba,
10963 struct lpfc_wcqe_complete *wcqe)
10965 struct lpfc_iocbq *irspiocbq;
10966 unsigned long iflags;
10967 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_FCP_RING];
10969 /* Get an irspiocbq for later ELS response processing use */
10970 irspiocbq = lpfc_sli_get_iocbq(phba);
10972 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10973 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
10974 "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n",
10975 pring->txq_cnt, phba->iocb_cnt,
10976 phba->sli.ring[LPFC_FCP_RING].txcmplq_cnt,
10977 phba->sli.ring[LPFC_ELS_RING].txcmplq_cnt);
10981 /* Save off the slow-path queue event for work thread to process */
10982 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
10983 spin_lock_irqsave(&phba->hbalock, iflags);
10984 list_add_tail(&irspiocbq->cq_event.list,
10985 &phba->sli4_hba.sp_queue_event);
10986 phba->hba_flag |= HBA_SP_QUEUE_EVT;
10987 spin_unlock_irqrestore(&phba->hbalock, iflags);
10993 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
10994 * @phba: Pointer to HBA context object.
10995 * @wcqe: Pointer to work-queue completion queue entry.
10997 * This routine handles slow-path WQ entry comsumed event by invoking the
10998 * proper WQ release routine to the slow-path WQ.
11001 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
11002 struct lpfc_wcqe_release *wcqe)
11004 /* sanity check on queue memory */
11005 if (unlikely(!phba->sli4_hba.els_wq))
11007 /* Check for the slow-path ELS work queue */
11008 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
11009 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
11010 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
11012 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11013 "2579 Slow-path wqe consume event carries "
11014 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
11015 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
11016 phba->sli4_hba.els_wq->queue_id);
11020 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
11021 * @phba: Pointer to HBA context object.
11022 * @cq: Pointer to a WQ completion queue.
11023 * @wcqe: Pointer to work-queue completion queue entry.
11025 * This routine handles an XRI abort event.
11027 * Return: true if work posted to worker thread, otherwise false.
11030 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
11031 struct lpfc_queue *cq,
11032 struct sli4_wcqe_xri_aborted *wcqe)
11034 bool workposted = false;
11035 struct lpfc_cq_event *cq_event;
11036 unsigned long iflags;
11038 /* Allocate a new internal CQ_EVENT entry */
11039 cq_event = lpfc_sli4_cq_event_alloc(phba);
11041 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11042 "0602 Failed to allocate CQ_EVENT entry\n");
11046 /* Move the CQE into the proper xri abort event list */
11047 memcpy(&cq_event->cqe, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
11048 switch (cq->subtype) {
11050 spin_lock_irqsave(&phba->hbalock, iflags);
11051 list_add_tail(&cq_event->list,
11052 &phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
11053 /* Set the fcp xri abort event flag */
11054 phba->hba_flag |= FCP_XRI_ABORT_EVENT;
11055 spin_unlock_irqrestore(&phba->hbalock, iflags);
11059 spin_lock_irqsave(&phba->hbalock, iflags);
11060 list_add_tail(&cq_event->list,
11061 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
11062 /* Set the els xri abort event flag */
11063 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
11064 spin_unlock_irqrestore(&phba->hbalock, iflags);
11068 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11069 "0603 Invalid work queue CQE subtype (x%x)\n",
11071 workposted = false;
11078 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
11079 * @phba: Pointer to HBA context object.
11080 * @rcqe: Pointer to receive-queue completion queue entry.
11082 * This routine process a receive-queue completion queue entry.
11084 * Return: true if work posted to worker thread, otherwise false.
11087 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
11089 bool workposted = false;
11090 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
11091 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
11092 struct hbq_dmabuf *dma_buf;
11093 uint32_t status, rq_id;
11094 unsigned long iflags;
11096 /* sanity check on queue memory */
11097 if (unlikely(!hrq) || unlikely(!drq))
11100 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
11101 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
11103 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
11104 if (rq_id != hrq->queue_id)
11107 status = bf_get(lpfc_rcqe_status, rcqe);
11109 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
11110 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11111 "2537 Receive Frame Truncated!!\n");
11112 case FC_STATUS_RQ_SUCCESS:
11113 lpfc_sli4_rq_release(hrq, drq);
11114 spin_lock_irqsave(&phba->hbalock, iflags);
11115 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
11117 spin_unlock_irqrestore(&phba->hbalock, iflags);
11120 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
11121 /* save off the frame for the word thread to process */
11122 list_add_tail(&dma_buf->cq_event.list,
11123 &phba->sli4_hba.sp_queue_event);
11124 /* Frame received */
11125 phba->hba_flag |= HBA_SP_QUEUE_EVT;
11126 spin_unlock_irqrestore(&phba->hbalock, iflags);
11129 case FC_STATUS_INSUFF_BUF_NEED_BUF:
11130 case FC_STATUS_INSUFF_BUF_FRM_DISC:
11131 /* Post more buffers if possible */
11132 spin_lock_irqsave(&phba->hbalock, iflags);
11133 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
11134 spin_unlock_irqrestore(&phba->hbalock, iflags);
11143 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
11144 * @phba: Pointer to HBA context object.
11145 * @cq: Pointer to the completion queue.
11146 * @wcqe: Pointer to a completion queue entry.
11148 * This routine process a slow-path work-queue or receive queue completion queue
11151 * Return: true if work posted to worker thread, otherwise false.
11154 lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11155 struct lpfc_cqe *cqe)
11157 struct lpfc_cqe cqevt;
11158 bool workposted = false;
11160 /* Copy the work queue CQE and convert endian order if needed */
11161 lpfc_sli_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
11163 /* Check and process for different type of WCQE and dispatch */
11164 switch (bf_get(lpfc_cqe_code, &cqevt)) {
11165 case CQE_CODE_COMPL_WQE:
11166 /* Process the WQ/RQ complete event */
11167 phba->last_completion_time = jiffies;
11168 workposted = lpfc_sli4_sp_handle_els_wcqe(phba,
11169 (struct lpfc_wcqe_complete *)&cqevt);
11171 case CQE_CODE_RELEASE_WQE:
11172 /* Process the WQ release event */
11173 lpfc_sli4_sp_handle_rel_wcqe(phba,
11174 (struct lpfc_wcqe_release *)&cqevt);
11176 case CQE_CODE_XRI_ABORTED:
11177 /* Process the WQ XRI abort event */
11178 phba->last_completion_time = jiffies;
11179 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
11180 (struct sli4_wcqe_xri_aborted *)&cqevt);
11182 case CQE_CODE_RECEIVE:
11183 case CQE_CODE_RECEIVE_V1:
11184 /* Process the RQ event */
11185 phba->last_completion_time = jiffies;
11186 workposted = lpfc_sli4_sp_handle_rcqe(phba,
11187 (struct lpfc_rcqe *)&cqevt);
11190 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11191 "0388 Not a valid WCQE code: x%x\n",
11192 bf_get(lpfc_cqe_code, &cqevt));
11199 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
11200 * @phba: Pointer to HBA context object.
11201 * @eqe: Pointer to fast-path event queue entry.
11203 * This routine process a event queue entry from the slow-path event queue.
11204 * It will check the MajorCode and MinorCode to determine this is for a
11205 * completion event on a completion queue, if not, an error shall be logged
11206 * and just return. Otherwise, it will get to the corresponding completion
11207 * queue and process all the entries on that completion queue, rearm the
11208 * completion queue, and then return.
11212 lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe)
11214 struct lpfc_queue *cq = NULL, *childq, *speq;
11215 struct lpfc_cqe *cqe;
11216 bool workposted = false;
11220 if (bf_get_le32(lpfc_eqe_major_code, eqe) != 0) {
11221 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11222 "0359 Not a valid slow-path completion "
11223 "event: majorcode=x%x, minorcode=x%x\n",
11224 bf_get_le32(lpfc_eqe_major_code, eqe),
11225 bf_get_le32(lpfc_eqe_minor_code, eqe));
11229 /* Get the reference to the corresponding CQ */
11230 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
11232 /* Search for completion queue pointer matching this cqid */
11233 speq = phba->sli4_hba.sp_eq;
11234 /* sanity check on queue memory */
11235 if (unlikely(!speq))
11237 list_for_each_entry(childq, &speq->child_list, list) {
11238 if (childq->queue_id == cqid) {
11243 if (unlikely(!cq)) {
11244 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
11245 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11246 "0365 Slow-path CQ identifier "
11247 "(%d) does not exist\n", cqid);
11251 /* Process all the entries to the CQ */
11252 switch (cq->type) {
11254 while ((cqe = lpfc_sli4_cq_get(cq))) {
11255 workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe);
11256 if (!(++ecount % cq->entry_repost))
11257 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
11261 while ((cqe = lpfc_sli4_cq_get(cq))) {
11262 if (cq->subtype == LPFC_FCP)
11263 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq,
11266 workposted |= lpfc_sli4_sp_handle_cqe(phba, cq,
11268 if (!(++ecount % cq->entry_repost))
11269 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
11273 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11274 "0370 Invalid completion queue type (%d)\n",
11279 /* Catch the no cq entry condition, log an error */
11280 if (unlikely(ecount == 0))
11281 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11282 "0371 No entry from the CQ: identifier "
11283 "(x%x), type (%d)\n", cq->queue_id, cq->type);
11285 /* In any case, flash and re-arm the RCQ */
11286 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
11288 /* wake up worker thread if there are works to be done */
11290 lpfc_worker_wake_up(phba);
11294 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
11295 * @eqe: Pointer to fast-path completion queue entry.
11297 * This routine process a fast-path work queue completion entry from fast-path
11298 * event queue for FCP command response completion.
11301 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba,
11302 struct lpfc_wcqe_complete *wcqe)
11304 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_FCP_RING];
11305 struct lpfc_iocbq *cmdiocbq;
11306 struct lpfc_iocbq irspiocbq;
11307 unsigned long iflags;
11309 spin_lock_irqsave(&phba->hbalock, iflags);
11310 pring->stats.iocb_event++;
11311 spin_unlock_irqrestore(&phba->hbalock, iflags);
11313 /* Check for response status */
11314 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
11315 /* If resource errors reported from HBA, reduce queue
11316 * depth of the SCSI device.
11318 if ((bf_get(lpfc_wcqe_c_status, wcqe) ==
11319 IOSTAT_LOCAL_REJECT) &&
11320 (wcqe->parameter == IOERR_NO_RESOURCES)) {
11321 phba->lpfc_rampdown_queue_depth(phba);
11323 /* Log the error status */
11324 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11325 "0373 FCP complete error: status=x%x, "
11326 "hw_status=x%x, total_data_specified=%d, "
11327 "parameter=x%x, word3=x%x\n",
11328 bf_get(lpfc_wcqe_c_status, wcqe),
11329 bf_get(lpfc_wcqe_c_hw_status, wcqe),
11330 wcqe->total_data_placed, wcqe->parameter,
11334 /* Look up the FCP command IOCB and create pseudo response IOCB */
11335 spin_lock_irqsave(&phba->hbalock, iflags);
11336 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
11337 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11338 spin_unlock_irqrestore(&phba->hbalock, iflags);
11339 if (unlikely(!cmdiocbq)) {
11340 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11341 "0374 FCP complete with no corresponding "
11342 "cmdiocb: iotag (%d)\n",
11343 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11346 if (unlikely(!cmdiocbq->iocb_cmpl)) {
11347 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11348 "0375 FCP cmdiocb not callback function "
11350 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11354 /* Fake the irspiocb and copy necessary response information */
11355 lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
11357 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
11358 spin_lock_irqsave(&phba->hbalock, iflags);
11359 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
11360 spin_unlock_irqrestore(&phba->hbalock, iflags);
11363 /* Pass the cmd_iocb and the rsp state to the upper layer */
11364 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
11368 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
11369 * @phba: Pointer to HBA context object.
11370 * @cq: Pointer to completion queue.
11371 * @wcqe: Pointer to work-queue completion queue entry.
11373 * This routine handles an fast-path WQ entry comsumed event by invoking the
11374 * proper WQ release routine to the slow-path WQ.
11377 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11378 struct lpfc_wcqe_release *wcqe)
11380 struct lpfc_queue *childwq;
11381 bool wqid_matched = false;
11384 /* Check for fast-path FCP work queue release */
11385 fcp_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
11386 list_for_each_entry(childwq, &cq->child_list, list) {
11387 if (childwq->queue_id == fcp_wqid) {
11388 lpfc_sli4_wq_release(childwq,
11389 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
11390 wqid_matched = true;
11394 /* Report warning log message if no match found */
11395 if (wqid_matched != true)
11396 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11397 "2580 Fast-path wqe consume event carries "
11398 "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid);
11402 * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry
11403 * @cq: Pointer to the completion queue.
11404 * @eqe: Pointer to fast-path completion queue entry.
11406 * This routine process a fast-path work queue completion entry from fast-path
11407 * event queue for FCP command response completion.
11410 lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11411 struct lpfc_cqe *cqe)
11413 struct lpfc_wcqe_release wcqe;
11414 bool workposted = false;
11416 /* Copy the work queue CQE and convert endian order if needed */
11417 lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
11419 /* Check and process for different type of WCQE and dispatch */
11420 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
11421 case CQE_CODE_COMPL_WQE:
11422 /* Process the WQ complete event */
11423 phba->last_completion_time = jiffies;
11424 lpfc_sli4_fp_handle_fcp_wcqe(phba,
11425 (struct lpfc_wcqe_complete *)&wcqe);
11427 case CQE_CODE_RELEASE_WQE:
11428 /* Process the WQ release event */
11429 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
11430 (struct lpfc_wcqe_release *)&wcqe);
11432 case CQE_CODE_XRI_ABORTED:
11433 /* Process the WQ XRI abort event */
11434 phba->last_completion_time = jiffies;
11435 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
11436 (struct sli4_wcqe_xri_aborted *)&wcqe);
11439 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11440 "0144 Not a valid WCQE code: x%x\n",
11441 bf_get(lpfc_wcqe_c_code, &wcqe));
11448 * lpfc_sli4_fp_handle_eqe - Process a fast-path event queue entry
11449 * @phba: Pointer to HBA context object.
11450 * @eqe: Pointer to fast-path event queue entry.
11452 * This routine process a event queue entry from the fast-path event queue.
11453 * It will check the MajorCode and MinorCode to determine this is for a
11454 * completion event on a completion queue, if not, an error shall be logged
11455 * and just return. Otherwise, it will get to the corresponding completion
11456 * queue and process all the entries on the completion queue, rearm the
11457 * completion queue, and then return.
11460 lpfc_sli4_fp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
11461 uint32_t fcp_cqidx)
11463 struct lpfc_queue *cq;
11464 struct lpfc_cqe *cqe;
11465 bool workposted = false;
11469 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
11470 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11471 "0366 Not a valid fast-path completion "
11472 "event: majorcode=x%x, minorcode=x%x\n",
11473 bf_get_le32(lpfc_eqe_major_code, eqe),
11474 bf_get_le32(lpfc_eqe_minor_code, eqe));
11478 if (unlikely(!phba->sli4_hba.fcp_cq)) {
11479 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11480 "3146 Fast-path completion queues "
11481 "does not exist\n");
11484 cq = phba->sli4_hba.fcp_cq[fcp_cqidx];
11485 if (unlikely(!cq)) {
11486 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
11487 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11488 "0367 Fast-path completion queue "
11489 "(%d) does not exist\n", fcp_cqidx);
11493 /* Get the reference to the corresponding CQ */
11494 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
11495 if (unlikely(cqid != cq->queue_id)) {
11496 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11497 "0368 Miss-matched fast-path completion "
11498 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
11499 cqid, cq->queue_id);
11503 /* Process all the entries to the CQ */
11504 while ((cqe = lpfc_sli4_cq_get(cq))) {
11505 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe);
11506 if (!(++ecount % cq->entry_repost))
11507 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
11510 /* Catch the no cq entry condition */
11511 if (unlikely(ecount == 0))
11512 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11513 "0369 No entry from fast-path completion "
11514 "queue fcpcqid=%d\n", cq->queue_id);
11516 /* In any case, flash and re-arm the CQ */
11517 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
11519 /* wake up worker thread if there are works to be done */
11521 lpfc_worker_wake_up(phba);
11525 lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
11527 struct lpfc_eqe *eqe;
11529 /* walk all the EQ entries and drop on the floor */
11530 while ((eqe = lpfc_sli4_eq_get(eq)))
11533 /* Clear and re-arm the EQ */
11534 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
11538 * lpfc_sli4_sp_intr_handler - Slow-path interrupt handler to SLI-4 device
11539 * @irq: Interrupt number.
11540 * @dev_id: The device context pointer.
11542 * This function is directly called from the PCI layer as an interrupt
11543 * service routine when device with SLI-4 interface spec is enabled with
11544 * MSI-X multi-message interrupt mode and there are slow-path events in
11545 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
11546 * interrupt mode, this function is called as part of the device-level
11547 * interrupt handler. When the PCI slot is in error recovery or the HBA is
11548 * undergoing initialization, the interrupt handler will not process the
11549 * interrupt. The link attention and ELS ring attention events are handled
11550 * by the worker thread. The interrupt handler signals the worker thread
11551 * and returns for these events. This function is called without any lock
11552 * held. It gets the hbalock to access and update SLI data structures.
11554 * This function returns IRQ_HANDLED when interrupt is handled else it
11555 * returns IRQ_NONE.
11558 lpfc_sli4_sp_intr_handler(int irq, void *dev_id)
11560 struct lpfc_hba *phba;
11561 struct lpfc_queue *speq;
11562 struct lpfc_eqe *eqe;
11563 unsigned long iflag;
11567 * Get the driver's phba structure from the dev_id
11569 phba = (struct lpfc_hba *)dev_id;
11571 if (unlikely(!phba))
11574 /* Get to the EQ struct associated with this vector */
11575 speq = phba->sli4_hba.sp_eq;
11576 if (unlikely(!speq))
11579 /* Check device state for handling interrupt */
11580 if (unlikely(lpfc_intr_state_check(phba))) {
11581 /* Check again for link_state with lock held */
11582 spin_lock_irqsave(&phba->hbalock, iflag);
11583 if (phba->link_state < LPFC_LINK_DOWN)
11584 /* Flush, clear interrupt, and rearm the EQ */
11585 lpfc_sli4_eq_flush(phba, speq);
11586 spin_unlock_irqrestore(&phba->hbalock, iflag);
11591 * Process all the event on FCP slow-path EQ
11593 while ((eqe = lpfc_sli4_eq_get(speq))) {
11594 lpfc_sli4_sp_handle_eqe(phba, eqe);
11595 if (!(++ecount % speq->entry_repost))
11596 lpfc_sli4_eq_release(speq, LPFC_QUEUE_NOARM);
11599 /* Always clear and re-arm the slow-path EQ */
11600 lpfc_sli4_eq_release(speq, LPFC_QUEUE_REARM);
11602 /* Catch the no cq entry condition */
11603 if (unlikely(ecount == 0)) {
11604 if (phba->intr_type == MSIX)
11605 /* MSI-X treated interrupt served as no EQ share INT */
11606 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11607 "0357 MSI-X interrupt with no EQE\n");
11609 /* Non MSI-X treated on interrupt as EQ share INT */
11613 return IRQ_HANDLED;
11614 } /* lpfc_sli4_sp_intr_handler */
11617 * lpfc_sli4_fp_intr_handler - Fast-path interrupt handler to SLI-4 device
11618 * @irq: Interrupt number.
11619 * @dev_id: The device context pointer.
11621 * This function is directly called from the PCI layer as an interrupt
11622 * service routine when device with SLI-4 interface spec is enabled with
11623 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
11624 * ring event in the HBA. However, when the device is enabled with either
11625 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
11626 * device-level interrupt handler. When the PCI slot is in error recovery
11627 * or the HBA is undergoing initialization, the interrupt handler will not
11628 * process the interrupt. The SCSI FCP fast-path ring event are handled in
11629 * the intrrupt context. This function is called without any lock held.
11630 * It gets the hbalock to access and update SLI data structures. Note that,
11631 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
11632 * equal to that of FCP CQ index.
11634 * This function returns IRQ_HANDLED when interrupt is handled else it
11635 * returns IRQ_NONE.
11638 lpfc_sli4_fp_intr_handler(int irq, void *dev_id)
11640 struct lpfc_hba *phba;
11641 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
11642 struct lpfc_queue *fpeq;
11643 struct lpfc_eqe *eqe;
11644 unsigned long iflag;
11646 uint32_t fcp_eqidx;
11648 /* Get the driver's phba structure from the dev_id */
11649 fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id;
11650 phba = fcp_eq_hdl->phba;
11651 fcp_eqidx = fcp_eq_hdl->idx;
11653 if (unlikely(!phba))
11655 if (unlikely(!phba->sli4_hba.fp_eq))
11658 /* Get to the EQ struct associated with this vector */
11659 fpeq = phba->sli4_hba.fp_eq[fcp_eqidx];
11660 if (unlikely(!fpeq))
11663 /* Check device state for handling interrupt */
11664 if (unlikely(lpfc_intr_state_check(phba))) {
11665 /* Check again for link_state with lock held */
11666 spin_lock_irqsave(&phba->hbalock, iflag);
11667 if (phba->link_state < LPFC_LINK_DOWN)
11668 /* Flush, clear interrupt, and rearm the EQ */
11669 lpfc_sli4_eq_flush(phba, fpeq);
11670 spin_unlock_irqrestore(&phba->hbalock, iflag);
11675 * Process all the event on FCP fast-path EQ
11677 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
11678 lpfc_sli4_fp_handle_eqe(phba, eqe, fcp_eqidx);
11679 if (!(++ecount % fpeq->entry_repost))
11680 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM);
11683 /* Always clear and re-arm the fast-path EQ */
11684 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
11686 if (unlikely(ecount == 0)) {
11687 if (phba->intr_type == MSIX)
11688 /* MSI-X treated interrupt served as no EQ share INT */
11689 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11690 "0358 MSI-X interrupt with no EQE\n");
11692 /* Non MSI-X treated on interrupt as EQ share INT */
11696 return IRQ_HANDLED;
11697 } /* lpfc_sli4_fp_intr_handler */
11700 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
11701 * @irq: Interrupt number.
11702 * @dev_id: The device context pointer.
11704 * This function is the device-level interrupt handler to device with SLI-4
11705 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
11706 * interrupt mode is enabled and there is an event in the HBA which requires
11707 * driver attention. This function invokes the slow-path interrupt attention
11708 * handling function and fast-path interrupt attention handling function in
11709 * turn to process the relevant HBA attention events. This function is called
11710 * without any lock held. It gets the hbalock to access and update SLI data
11713 * This function returns IRQ_HANDLED when interrupt is handled, else it
11714 * returns IRQ_NONE.
11717 lpfc_sli4_intr_handler(int irq, void *dev_id)
11719 struct lpfc_hba *phba;
11720 irqreturn_t sp_irq_rc, fp_irq_rc;
11721 bool fp_handled = false;
11722 uint32_t fcp_eqidx;
11724 /* Get the driver's phba structure from the dev_id */
11725 phba = (struct lpfc_hba *)dev_id;
11727 if (unlikely(!phba))
11731 * Invokes slow-path host attention interrupt handling as appropriate.
11733 sp_irq_rc = lpfc_sli4_sp_intr_handler(irq, dev_id);
11736 * Invoke fast-path host attention interrupt handling as appropriate.
11738 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
11739 fp_irq_rc = lpfc_sli4_fp_intr_handler(irq,
11740 &phba->sli4_hba.fcp_eq_hdl[fcp_eqidx]);
11741 if (fp_irq_rc == IRQ_HANDLED)
11742 fp_handled |= true;
11745 return (fp_handled == true) ? IRQ_HANDLED : sp_irq_rc;
11746 } /* lpfc_sli4_intr_handler */
11749 * lpfc_sli4_queue_free - free a queue structure and associated memory
11750 * @queue: The queue structure to free.
11752 * This function frees a queue structure and the DMAable memory used for
11753 * the host resident queue. This function must be called after destroying the
11754 * queue on the HBA.
11757 lpfc_sli4_queue_free(struct lpfc_queue *queue)
11759 struct lpfc_dmabuf *dmabuf;
11764 while (!list_empty(&queue->page_list)) {
11765 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
11767 dma_free_coherent(&queue->phba->pcidev->dev, SLI4_PAGE_SIZE,
11768 dmabuf->virt, dmabuf->phys);
11776 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
11777 * @phba: The HBA that this queue is being created on.
11778 * @entry_size: The size of each queue entry for this queue.
11779 * @entry count: The number of entries that this queue will handle.
11781 * This function allocates a queue structure and the DMAable memory used for
11782 * the host resident queue. This function must be called before creating the
11783 * queue on the HBA.
11785 struct lpfc_queue *
11786 lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size,
11787 uint32_t entry_count)
11789 struct lpfc_queue *queue;
11790 struct lpfc_dmabuf *dmabuf;
11791 int x, total_qe_count;
11793 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
11795 if (!phba->sli4_hba.pc_sli4_params.supported)
11796 hw_page_size = SLI4_PAGE_SIZE;
11798 queue = kzalloc(sizeof(struct lpfc_queue) +
11799 (sizeof(union sli4_qe) * entry_count), GFP_KERNEL);
11802 queue->page_count = (ALIGN(entry_size * entry_count,
11803 hw_page_size))/hw_page_size;
11804 INIT_LIST_HEAD(&queue->list);
11805 INIT_LIST_HEAD(&queue->page_list);
11806 INIT_LIST_HEAD(&queue->child_list);
11807 for (x = 0, total_qe_count = 0; x < queue->page_count; x++) {
11808 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
11811 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
11812 hw_page_size, &dmabuf->phys,
11814 if (!dmabuf->virt) {
11818 memset(dmabuf->virt, 0, hw_page_size);
11819 dmabuf->buffer_tag = x;
11820 list_add_tail(&dmabuf->list, &queue->page_list);
11821 /* initialize queue's entry array */
11822 dma_pointer = dmabuf->virt;
11823 for (; total_qe_count < entry_count &&
11824 dma_pointer < (hw_page_size + dmabuf->virt);
11825 total_qe_count++, dma_pointer += entry_size) {
11826 queue->qe[total_qe_count].address = dma_pointer;
11829 queue->entry_size = entry_size;
11830 queue->entry_count = entry_count;
11833 * entry_repost is calculated based on the number of entries in the
11834 * queue. This works out except for RQs. If buffers are NOT initially
11835 * posted for every RQE, entry_repost should be adjusted accordingly.
11837 queue->entry_repost = (entry_count >> 3);
11838 if (queue->entry_repost < LPFC_QUEUE_MIN_REPOST)
11839 queue->entry_repost = LPFC_QUEUE_MIN_REPOST;
11840 queue->phba = phba;
11844 lpfc_sli4_queue_free(queue);
11849 * lpfc_eq_create - Create an Event Queue on the HBA
11850 * @phba: HBA structure that indicates port to create a queue on.
11851 * @eq: The queue structure to use to create the event queue.
11852 * @imax: The maximum interrupt per second limit.
11854 * This function creates an event queue, as detailed in @eq, on a port,
11855 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
11857 * The @phba struct is used to send mailbox command to HBA. The @eq struct
11858 * is used to get the entry count and entry size that are necessary to
11859 * determine the number of pages to allocate and use for this queue. This
11860 * function will send the EQ_CREATE mailbox command to the HBA to setup the
11861 * event queue. This function is asynchronous and will wait for the mailbox
11862 * command to finish before continuing.
11864 * On success this function will return a zero. If unable to allocate enough
11865 * memory this function will return -ENOMEM. If the queue create mailbox command
11866 * fails this function will return -ENXIO.
11869 lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint16_t imax)
11871 struct lpfc_mbx_eq_create *eq_create;
11872 LPFC_MBOXQ_t *mbox;
11873 int rc, length, status = 0;
11874 struct lpfc_dmabuf *dmabuf;
11875 uint32_t shdr_status, shdr_add_status;
11876 union lpfc_sli4_cfg_shdr *shdr;
11878 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
11880 /* sanity check on queue memory */
11883 if (!phba->sli4_hba.pc_sli4_params.supported)
11884 hw_page_size = SLI4_PAGE_SIZE;
11886 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11889 length = (sizeof(struct lpfc_mbx_eq_create) -
11890 sizeof(struct lpfc_sli4_cfg_mhdr));
11891 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
11892 LPFC_MBOX_OPCODE_EQ_CREATE,
11893 length, LPFC_SLI4_MBX_EMBED);
11894 eq_create = &mbox->u.mqe.un.eq_create;
11895 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
11897 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
11899 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
11900 /* Calculate delay multiper from maximum interrupt per second */
11901 dmult = LPFC_DMULT_CONST/imax - 1;
11902 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
11904 switch (eq->entry_count) {
11906 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11907 "0360 Unsupported EQ count. (%d)\n",
11909 if (eq->entry_count < 256)
11911 /* otherwise default to smallest count (drop through) */
11913 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
11917 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
11921 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
11925 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
11929 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
11933 list_for_each_entry(dmabuf, &eq->page_list, list) {
11934 memset(dmabuf->virt, 0, hw_page_size);
11935 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
11936 putPaddrLow(dmabuf->phys);
11937 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
11938 putPaddrHigh(dmabuf->phys);
11940 mbox->vport = phba->pport;
11941 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
11942 mbox->context1 = NULL;
11943 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
11944 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
11945 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11946 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
11947 if (shdr_status || shdr_add_status || rc) {
11948 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11949 "2500 EQ_CREATE mailbox failed with "
11950 "status x%x add_status x%x, mbx status x%x\n",
11951 shdr_status, shdr_add_status, rc);
11954 eq->type = LPFC_EQ;
11955 eq->subtype = LPFC_NONE;
11956 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
11957 if (eq->queue_id == 0xFFFF)
11959 eq->host_index = 0;
11962 mempool_free(mbox, phba->mbox_mem_pool);
11967 * lpfc_cq_create - Create a Completion Queue on the HBA
11968 * @phba: HBA structure that indicates port to create a queue on.
11969 * @cq: The queue structure to use to create the completion queue.
11970 * @eq: The event queue to bind this completion queue to.
11972 * This function creates a completion queue, as detailed in @wq, on a port,
11973 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
11975 * The @phba struct is used to send mailbox command to HBA. The @cq struct
11976 * is used to get the entry count and entry size that are necessary to
11977 * determine the number of pages to allocate and use for this queue. The @eq
11978 * is used to indicate which event queue to bind this completion queue to. This
11979 * function will send the CQ_CREATE mailbox command to the HBA to setup the
11980 * completion queue. This function is asynchronous and will wait for the mailbox
11981 * command to finish before continuing.
11983 * On success this function will return a zero. If unable to allocate enough
11984 * memory this function will return -ENOMEM. If the queue create mailbox command
11985 * fails this function will return -ENXIO.
11988 lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
11989 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
11991 struct lpfc_mbx_cq_create *cq_create;
11992 struct lpfc_dmabuf *dmabuf;
11993 LPFC_MBOXQ_t *mbox;
11994 int rc, length, status = 0;
11995 uint32_t shdr_status, shdr_add_status;
11996 union lpfc_sli4_cfg_shdr *shdr;
11997 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
11999 /* sanity check on queue memory */
12002 if (!phba->sli4_hba.pc_sli4_params.supported)
12003 hw_page_size = SLI4_PAGE_SIZE;
12005 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12008 length = (sizeof(struct lpfc_mbx_cq_create) -
12009 sizeof(struct lpfc_sli4_cfg_mhdr));
12010 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12011 LPFC_MBOX_OPCODE_CQ_CREATE,
12012 length, LPFC_SLI4_MBX_EMBED);
12013 cq_create = &mbox->u.mqe.un.cq_create;
12014 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
12015 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
12017 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
12018 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
12019 bf_set(lpfc_mbox_hdr_version, &shdr->request,
12020 phba->sli4_hba.pc_sli4_params.cqv);
12021 if (phba->sli4_hba.pc_sli4_params.cqv == LPFC_Q_CREATE_VERSION_2) {
12022 /* FW only supports 1. Should be PAGE_SIZE/SLI4_PAGE_SIZE */
12023 bf_set(lpfc_mbx_cq_create_page_size, &cq_create->u.request, 1);
12024 bf_set(lpfc_cq_eq_id_2, &cq_create->u.request.context,
12027 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context,
12030 switch (cq->entry_count) {
12032 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12033 "0361 Unsupported CQ count. (%d)\n",
12035 if (cq->entry_count < 256)
12037 /* otherwise default to smallest count (drop through) */
12039 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
12043 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
12047 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
12051 list_for_each_entry(dmabuf, &cq->page_list, list) {
12052 memset(dmabuf->virt, 0, hw_page_size);
12053 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
12054 putPaddrLow(dmabuf->phys);
12055 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
12056 putPaddrHigh(dmabuf->phys);
12058 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12060 /* The IOCTL status is embedded in the mailbox subheader. */
12061 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12062 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12063 if (shdr_status || shdr_add_status || rc) {
12064 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12065 "2501 CQ_CREATE mailbox failed with "
12066 "status x%x add_status x%x, mbx status x%x\n",
12067 shdr_status, shdr_add_status, rc);
12071 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
12072 if (cq->queue_id == 0xFFFF) {
12076 /* link the cq onto the parent eq child list */
12077 list_add_tail(&cq->list, &eq->child_list);
12078 /* Set up completion queue's type and subtype */
12080 cq->subtype = subtype;
12081 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
12082 cq->assoc_qid = eq->queue_id;
12083 cq->host_index = 0;
12087 mempool_free(mbox, phba->mbox_mem_pool);
12092 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
12093 * @phba: HBA structure that indicates port to create a queue on.
12094 * @mq: The queue structure to use to create the mailbox queue.
12095 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
12096 * @cq: The completion queue to associate with this cq.
12098 * This function provides failback (fb) functionality when the
12099 * mq_create_ext fails on older FW generations. It's purpose is identical
12100 * to mq_create_ext otherwise.
12102 * This routine cannot fail as all attributes were previously accessed and
12103 * initialized in mq_create_ext.
12106 lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq,
12107 LPFC_MBOXQ_t *mbox, struct lpfc_queue *cq)
12109 struct lpfc_mbx_mq_create *mq_create;
12110 struct lpfc_dmabuf *dmabuf;
12113 length = (sizeof(struct lpfc_mbx_mq_create) -
12114 sizeof(struct lpfc_sli4_cfg_mhdr));
12115 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12116 LPFC_MBOX_OPCODE_MQ_CREATE,
12117 length, LPFC_SLI4_MBX_EMBED);
12118 mq_create = &mbox->u.mqe.un.mq_create;
12119 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
12121 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
12123 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
12124 switch (mq->entry_count) {
12126 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
12127 LPFC_MQ_RING_SIZE_16);
12130 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
12131 LPFC_MQ_RING_SIZE_32);
12134 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
12135 LPFC_MQ_RING_SIZE_64);
12138 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
12139 LPFC_MQ_RING_SIZE_128);
12142 list_for_each_entry(dmabuf, &mq->page_list, list) {
12143 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
12144 putPaddrLow(dmabuf->phys);
12145 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
12146 putPaddrHigh(dmabuf->phys);
12151 * lpfc_mq_create - Create a mailbox Queue on the HBA
12152 * @phba: HBA structure that indicates port to create a queue on.
12153 * @mq: The queue structure to use to create the mailbox queue.
12154 * @cq: The completion queue to associate with this cq.
12155 * @subtype: The queue's subtype.
12157 * This function creates a mailbox queue, as detailed in @mq, on a port,
12158 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
12160 * The @phba struct is used to send mailbox command to HBA. The @cq struct
12161 * is used to get the entry count and entry size that are necessary to
12162 * determine the number of pages to allocate and use for this queue. This
12163 * function will send the MQ_CREATE mailbox command to the HBA to setup the
12164 * mailbox queue. This function is asynchronous and will wait for the mailbox
12165 * command to finish before continuing.
12167 * On success this function will return a zero. If unable to allocate enough
12168 * memory this function will return -ENOMEM. If the queue create mailbox command
12169 * fails this function will return -ENXIO.
12172 lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
12173 struct lpfc_queue *cq, uint32_t subtype)
12175 struct lpfc_mbx_mq_create *mq_create;
12176 struct lpfc_mbx_mq_create_ext *mq_create_ext;
12177 struct lpfc_dmabuf *dmabuf;
12178 LPFC_MBOXQ_t *mbox;
12179 int rc, length, status = 0;
12180 uint32_t shdr_status, shdr_add_status;
12181 union lpfc_sli4_cfg_shdr *shdr;
12182 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12184 /* sanity check on queue memory */
12187 if (!phba->sli4_hba.pc_sli4_params.supported)
12188 hw_page_size = SLI4_PAGE_SIZE;
12190 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12193 length = (sizeof(struct lpfc_mbx_mq_create_ext) -
12194 sizeof(struct lpfc_sli4_cfg_mhdr));
12195 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12196 LPFC_MBOX_OPCODE_MQ_CREATE_EXT,
12197 length, LPFC_SLI4_MBX_EMBED);
12199 mq_create_ext = &mbox->u.mqe.un.mq_create_ext;
12200 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr;
12201 bf_set(lpfc_mbx_mq_create_ext_num_pages,
12202 &mq_create_ext->u.request, mq->page_count);
12203 bf_set(lpfc_mbx_mq_create_ext_async_evt_link,
12204 &mq_create_ext->u.request, 1);
12205 bf_set(lpfc_mbx_mq_create_ext_async_evt_fip,
12206 &mq_create_ext->u.request, 1);
12207 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5,
12208 &mq_create_ext->u.request, 1);
12209 bf_set(lpfc_mbx_mq_create_ext_async_evt_fc,
12210 &mq_create_ext->u.request, 1);
12211 bf_set(lpfc_mbx_mq_create_ext_async_evt_sli,
12212 &mq_create_ext->u.request, 1);
12213 bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1);
12214 bf_set(lpfc_mbox_hdr_version, &shdr->request,
12215 phba->sli4_hba.pc_sli4_params.mqv);
12216 if (phba->sli4_hba.pc_sli4_params.mqv == LPFC_Q_CREATE_VERSION_1)
12217 bf_set(lpfc_mbx_mq_create_ext_cq_id, &mq_create_ext->u.request,
12220 bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context,
12222 switch (mq->entry_count) {
12224 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12225 "0362 Unsupported MQ count. (%d)\n",
12227 if (mq->entry_count < 16)
12229 /* otherwise default to smallest count (drop through) */
12231 bf_set(lpfc_mq_context_ring_size,
12232 &mq_create_ext->u.request.context,
12233 LPFC_MQ_RING_SIZE_16);
12236 bf_set(lpfc_mq_context_ring_size,
12237 &mq_create_ext->u.request.context,
12238 LPFC_MQ_RING_SIZE_32);
12241 bf_set(lpfc_mq_context_ring_size,
12242 &mq_create_ext->u.request.context,
12243 LPFC_MQ_RING_SIZE_64);
12246 bf_set(lpfc_mq_context_ring_size,
12247 &mq_create_ext->u.request.context,
12248 LPFC_MQ_RING_SIZE_128);
12251 list_for_each_entry(dmabuf, &mq->page_list, list) {
12252 memset(dmabuf->virt, 0, hw_page_size);
12253 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_lo =
12254 putPaddrLow(dmabuf->phys);
12255 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_hi =
12256 putPaddrHigh(dmabuf->phys);
12258 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12259 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
12260 &mq_create_ext->u.response);
12261 if (rc != MBX_SUCCESS) {
12262 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12263 "2795 MQ_CREATE_EXT failed with "
12264 "status x%x. Failback to MQ_CREATE.\n",
12266 lpfc_mq_create_fb_init(phba, mq, mbox, cq);
12267 mq_create = &mbox->u.mqe.un.mq_create;
12268 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12269 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
12270 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
12271 &mq_create->u.response);
12274 /* The IOCTL status is embedded in the mailbox subheader. */
12275 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12276 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12277 if (shdr_status || shdr_add_status || rc) {
12278 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12279 "2502 MQ_CREATE mailbox failed with "
12280 "status x%x add_status x%x, mbx status x%x\n",
12281 shdr_status, shdr_add_status, rc);
12285 if (mq->queue_id == 0xFFFF) {
12289 mq->type = LPFC_MQ;
12290 mq->assoc_qid = cq->queue_id;
12291 mq->subtype = subtype;
12292 mq->host_index = 0;
12295 /* link the mq onto the parent cq child list */
12296 list_add_tail(&mq->list, &cq->child_list);
12298 mempool_free(mbox, phba->mbox_mem_pool);
12303 * lpfc_wq_create - Create a Work Queue on the HBA
12304 * @phba: HBA structure that indicates port to create a queue on.
12305 * @wq: The queue structure to use to create the work queue.
12306 * @cq: The completion queue to bind this work queue to.
12307 * @subtype: The subtype of the work queue indicating its functionality.
12309 * This function creates a work queue, as detailed in @wq, on a port, described
12310 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
12312 * The @phba struct is used to send mailbox command to HBA. The @wq struct
12313 * is used to get the entry count and entry size that are necessary to
12314 * determine the number of pages to allocate and use for this queue. The @cq
12315 * is used to indicate which completion queue to bind this work queue to. This
12316 * function will send the WQ_CREATE mailbox command to the HBA to setup the
12317 * work queue. This function is asynchronous and will wait for the mailbox
12318 * command to finish before continuing.
12320 * On success this function will return a zero. If unable to allocate enough
12321 * memory this function will return -ENOMEM. If the queue create mailbox command
12322 * fails this function will return -ENXIO.
12325 lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
12326 struct lpfc_queue *cq, uint32_t subtype)
12328 struct lpfc_mbx_wq_create *wq_create;
12329 struct lpfc_dmabuf *dmabuf;
12330 LPFC_MBOXQ_t *mbox;
12331 int rc, length, status = 0;
12332 uint32_t shdr_status, shdr_add_status;
12333 union lpfc_sli4_cfg_shdr *shdr;
12334 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12335 struct dma_address *page;
12337 /* sanity check on queue memory */
12340 if (!phba->sli4_hba.pc_sli4_params.supported)
12341 hw_page_size = SLI4_PAGE_SIZE;
12343 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12346 length = (sizeof(struct lpfc_mbx_wq_create) -
12347 sizeof(struct lpfc_sli4_cfg_mhdr));
12348 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
12349 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
12350 length, LPFC_SLI4_MBX_EMBED);
12351 wq_create = &mbox->u.mqe.un.wq_create;
12352 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
12353 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
12355 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
12357 bf_set(lpfc_mbox_hdr_version, &shdr->request,
12358 phba->sli4_hba.pc_sli4_params.wqv);
12359 if (phba->sli4_hba.pc_sli4_params.wqv == LPFC_Q_CREATE_VERSION_1) {
12360 bf_set(lpfc_mbx_wq_create_wqe_count, &wq_create->u.request_1,
12362 switch (wq->entry_size) {
12365 bf_set(lpfc_mbx_wq_create_wqe_size,
12366 &wq_create->u.request_1,
12367 LPFC_WQ_WQE_SIZE_64);
12370 bf_set(lpfc_mbx_wq_create_wqe_size,
12371 &wq_create->u.request_1,
12372 LPFC_WQ_WQE_SIZE_128);
12375 bf_set(lpfc_mbx_wq_create_page_size, &wq_create->u.request_1,
12376 (PAGE_SIZE/SLI4_PAGE_SIZE));
12377 page = wq_create->u.request_1.page;
12379 page = wq_create->u.request.page;
12381 list_for_each_entry(dmabuf, &wq->page_list, list) {
12382 memset(dmabuf->virt, 0, hw_page_size);
12383 page[dmabuf->buffer_tag].addr_lo = putPaddrLow(dmabuf->phys);
12384 page[dmabuf->buffer_tag].addr_hi = putPaddrHigh(dmabuf->phys);
12386 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12387 /* The IOCTL status is embedded in the mailbox subheader. */
12388 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12389 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12390 if (shdr_status || shdr_add_status || rc) {
12391 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12392 "2503 WQ_CREATE mailbox failed with "
12393 "status x%x add_status x%x, mbx status x%x\n",
12394 shdr_status, shdr_add_status, rc);
12398 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response);
12399 if (wq->queue_id == 0xFFFF) {
12403 wq->type = LPFC_WQ;
12404 wq->assoc_qid = cq->queue_id;
12405 wq->subtype = subtype;
12406 wq->host_index = 0;
12408 wq->entry_repost = LPFC_RELEASE_NOTIFICATION_INTERVAL;
12410 /* link the wq onto the parent cq child list */
12411 list_add_tail(&wq->list, &cq->child_list);
12413 mempool_free(mbox, phba->mbox_mem_pool);
12418 * lpfc_rq_adjust_repost - Adjust entry_repost for an RQ
12419 * @phba: HBA structure that indicates port to create a queue on.
12420 * @rq: The queue structure to use for the receive queue.
12421 * @qno: The associated HBQ number
12424 * For SLI4 we need to adjust the RQ repost value based on
12425 * the number of buffers that are initially posted to the RQ.
12428 lpfc_rq_adjust_repost(struct lpfc_hba *phba, struct lpfc_queue *rq, int qno)
12432 /* sanity check on queue memory */
12435 cnt = lpfc_hbq_defs[qno]->entry_count;
12437 /* Recalc repost for RQs based on buffers initially posted */
12439 if (cnt < LPFC_QUEUE_MIN_REPOST)
12440 cnt = LPFC_QUEUE_MIN_REPOST;
12442 rq->entry_repost = cnt;
12446 * lpfc_rq_create - Create a Receive Queue on the HBA
12447 * @phba: HBA structure that indicates port to create a queue on.
12448 * @hrq: The queue structure to use to create the header receive queue.
12449 * @drq: The queue structure to use to create the data receive queue.
12450 * @cq: The completion queue to bind this work queue to.
12452 * This function creates a receive buffer queue pair , as detailed in @hrq and
12453 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
12456 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
12457 * struct is used to get the entry count that is necessary to determine the
12458 * number of pages to use for this queue. The @cq is used to indicate which
12459 * completion queue to bind received buffers that are posted to these queues to.
12460 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
12461 * receive queue pair. This function is asynchronous and will wait for the
12462 * mailbox command to finish before continuing.
12464 * On success this function will return a zero. If unable to allocate enough
12465 * memory this function will return -ENOMEM. If the queue create mailbox command
12466 * fails this function will return -ENXIO.
12469 lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
12470 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
12472 struct lpfc_mbx_rq_create *rq_create;
12473 struct lpfc_dmabuf *dmabuf;
12474 LPFC_MBOXQ_t *mbox;
12475 int rc, length, status = 0;
12476 uint32_t shdr_status, shdr_add_status;
12477 union lpfc_sli4_cfg_shdr *shdr;
12478 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12480 /* sanity check on queue memory */
12481 if (!hrq || !drq || !cq)
12483 if (!phba->sli4_hba.pc_sli4_params.supported)
12484 hw_page_size = SLI4_PAGE_SIZE;
12486 if (hrq->entry_count != drq->entry_count)
12488 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12491 length = (sizeof(struct lpfc_mbx_rq_create) -
12492 sizeof(struct lpfc_sli4_cfg_mhdr));
12493 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
12494 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
12495 length, LPFC_SLI4_MBX_EMBED);
12496 rq_create = &mbox->u.mqe.un.rq_create;
12497 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
12498 bf_set(lpfc_mbox_hdr_version, &shdr->request,
12499 phba->sli4_hba.pc_sli4_params.rqv);
12500 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
12501 bf_set(lpfc_rq_context_rqe_count_1,
12502 &rq_create->u.request.context,
12504 rq_create->u.request.context.buffer_size = LPFC_HDR_BUF_SIZE;
12505 bf_set(lpfc_rq_context_rqe_size,
12506 &rq_create->u.request.context,
12508 bf_set(lpfc_rq_context_page_size,
12509 &rq_create->u.request.context,
12510 (PAGE_SIZE/SLI4_PAGE_SIZE));
12512 switch (hrq->entry_count) {
12514 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12515 "2535 Unsupported RQ count. (%d)\n",
12517 if (hrq->entry_count < 512)
12519 /* otherwise default to smallest count (drop through) */
12521 bf_set(lpfc_rq_context_rqe_count,
12522 &rq_create->u.request.context,
12523 LPFC_RQ_RING_SIZE_512);
12526 bf_set(lpfc_rq_context_rqe_count,
12527 &rq_create->u.request.context,
12528 LPFC_RQ_RING_SIZE_1024);
12531 bf_set(lpfc_rq_context_rqe_count,
12532 &rq_create->u.request.context,
12533 LPFC_RQ_RING_SIZE_2048);
12536 bf_set(lpfc_rq_context_rqe_count,
12537 &rq_create->u.request.context,
12538 LPFC_RQ_RING_SIZE_4096);
12541 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
12542 LPFC_HDR_BUF_SIZE);
12544 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
12546 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
12548 list_for_each_entry(dmabuf, &hrq->page_list, list) {
12549 memset(dmabuf->virt, 0, hw_page_size);
12550 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
12551 putPaddrLow(dmabuf->phys);
12552 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
12553 putPaddrHigh(dmabuf->phys);
12555 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12556 /* The IOCTL status is embedded in the mailbox subheader. */
12557 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12558 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12559 if (shdr_status || shdr_add_status || rc) {
12560 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12561 "2504 RQ_CREATE mailbox failed with "
12562 "status x%x add_status x%x, mbx status x%x\n",
12563 shdr_status, shdr_add_status, rc);
12567 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
12568 if (hrq->queue_id == 0xFFFF) {
12572 hrq->type = LPFC_HRQ;
12573 hrq->assoc_qid = cq->queue_id;
12574 hrq->subtype = subtype;
12575 hrq->host_index = 0;
12576 hrq->hba_index = 0;
12578 /* now create the data queue */
12579 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
12580 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
12581 length, LPFC_SLI4_MBX_EMBED);
12582 bf_set(lpfc_mbox_hdr_version, &shdr->request,
12583 phba->sli4_hba.pc_sli4_params.rqv);
12584 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
12585 bf_set(lpfc_rq_context_rqe_count_1,
12586 &rq_create->u.request.context, hrq->entry_count);
12587 rq_create->u.request.context.buffer_size = LPFC_DATA_BUF_SIZE;
12588 bf_set(lpfc_rq_context_rqe_size, &rq_create->u.request.context,
12590 bf_set(lpfc_rq_context_page_size, &rq_create->u.request.context,
12591 (PAGE_SIZE/SLI4_PAGE_SIZE));
12593 switch (drq->entry_count) {
12595 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12596 "2536 Unsupported RQ count. (%d)\n",
12598 if (drq->entry_count < 512)
12600 /* otherwise default to smallest count (drop through) */
12602 bf_set(lpfc_rq_context_rqe_count,
12603 &rq_create->u.request.context,
12604 LPFC_RQ_RING_SIZE_512);
12607 bf_set(lpfc_rq_context_rqe_count,
12608 &rq_create->u.request.context,
12609 LPFC_RQ_RING_SIZE_1024);
12612 bf_set(lpfc_rq_context_rqe_count,
12613 &rq_create->u.request.context,
12614 LPFC_RQ_RING_SIZE_2048);
12617 bf_set(lpfc_rq_context_rqe_count,
12618 &rq_create->u.request.context,
12619 LPFC_RQ_RING_SIZE_4096);
12622 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
12623 LPFC_DATA_BUF_SIZE);
12625 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
12627 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
12629 list_for_each_entry(dmabuf, &drq->page_list, list) {
12630 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
12631 putPaddrLow(dmabuf->phys);
12632 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
12633 putPaddrHigh(dmabuf->phys);
12635 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12636 /* The IOCTL status is embedded in the mailbox subheader. */
12637 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
12638 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12639 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12640 if (shdr_status || shdr_add_status || rc) {
12644 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
12645 if (drq->queue_id == 0xFFFF) {
12649 drq->type = LPFC_DRQ;
12650 drq->assoc_qid = cq->queue_id;
12651 drq->subtype = subtype;
12652 drq->host_index = 0;
12653 drq->hba_index = 0;
12655 /* link the header and data RQs onto the parent cq child list */
12656 list_add_tail(&hrq->list, &cq->child_list);
12657 list_add_tail(&drq->list, &cq->child_list);
12660 mempool_free(mbox, phba->mbox_mem_pool);
12665 * lpfc_eq_destroy - Destroy an event Queue on the HBA
12666 * @eq: The queue structure associated with the queue to destroy.
12668 * This function destroys a queue, as detailed in @eq by sending an mailbox
12669 * command, specific to the type of queue, to the HBA.
12671 * The @eq struct is used to get the queue ID of the queue to destroy.
12673 * On success this function will return a zero. If the queue destroy mailbox
12674 * command fails this function will return -ENXIO.
12677 lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
12679 LPFC_MBOXQ_t *mbox;
12680 int rc, length, status = 0;
12681 uint32_t shdr_status, shdr_add_status;
12682 union lpfc_sli4_cfg_shdr *shdr;
12684 /* sanity check on queue memory */
12687 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
12690 length = (sizeof(struct lpfc_mbx_eq_destroy) -
12691 sizeof(struct lpfc_sli4_cfg_mhdr));
12692 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12693 LPFC_MBOX_OPCODE_EQ_DESTROY,
12694 length, LPFC_SLI4_MBX_EMBED);
12695 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
12697 mbox->vport = eq->phba->pport;
12698 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12700 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
12701 /* The IOCTL status is embedded in the mailbox subheader. */
12702 shdr = (union lpfc_sli4_cfg_shdr *)
12703 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
12704 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12705 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12706 if (shdr_status || shdr_add_status || rc) {
12707 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12708 "2505 EQ_DESTROY mailbox failed with "
12709 "status x%x add_status x%x, mbx status x%x\n",
12710 shdr_status, shdr_add_status, rc);
12714 /* Remove eq from any list */
12715 list_del_init(&eq->list);
12716 mempool_free(mbox, eq->phba->mbox_mem_pool);
12721 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
12722 * @cq: The queue structure associated with the queue to destroy.
12724 * This function destroys a queue, as detailed in @cq by sending an mailbox
12725 * command, specific to the type of queue, to the HBA.
12727 * The @cq struct is used to get the queue ID of the queue to destroy.
12729 * On success this function will return a zero. If the queue destroy mailbox
12730 * command fails this function will return -ENXIO.
12733 lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
12735 LPFC_MBOXQ_t *mbox;
12736 int rc, length, status = 0;
12737 uint32_t shdr_status, shdr_add_status;
12738 union lpfc_sli4_cfg_shdr *shdr;
12740 /* sanity check on queue memory */
12743 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
12746 length = (sizeof(struct lpfc_mbx_cq_destroy) -
12747 sizeof(struct lpfc_sli4_cfg_mhdr));
12748 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12749 LPFC_MBOX_OPCODE_CQ_DESTROY,
12750 length, LPFC_SLI4_MBX_EMBED);
12751 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
12753 mbox->vport = cq->phba->pport;
12754 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12755 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
12756 /* The IOCTL status is embedded in the mailbox subheader. */
12757 shdr = (union lpfc_sli4_cfg_shdr *)
12758 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
12759 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12760 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12761 if (shdr_status || shdr_add_status || rc) {
12762 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12763 "2506 CQ_DESTROY mailbox failed with "
12764 "status x%x add_status x%x, mbx status x%x\n",
12765 shdr_status, shdr_add_status, rc);
12768 /* Remove cq from any list */
12769 list_del_init(&cq->list);
12770 mempool_free(mbox, cq->phba->mbox_mem_pool);
12775 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
12776 * @qm: The queue structure associated with the queue to destroy.
12778 * This function destroys a queue, as detailed in @mq by sending an mailbox
12779 * command, specific to the type of queue, to the HBA.
12781 * The @mq struct is used to get the queue ID of the queue to destroy.
12783 * On success this function will return a zero. If the queue destroy mailbox
12784 * command fails this function will return -ENXIO.
12787 lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
12789 LPFC_MBOXQ_t *mbox;
12790 int rc, length, status = 0;
12791 uint32_t shdr_status, shdr_add_status;
12792 union lpfc_sli4_cfg_shdr *shdr;
12794 /* sanity check on queue memory */
12797 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
12800 length = (sizeof(struct lpfc_mbx_mq_destroy) -
12801 sizeof(struct lpfc_sli4_cfg_mhdr));
12802 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12803 LPFC_MBOX_OPCODE_MQ_DESTROY,
12804 length, LPFC_SLI4_MBX_EMBED);
12805 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
12807 mbox->vport = mq->phba->pport;
12808 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12809 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
12810 /* The IOCTL status is embedded in the mailbox subheader. */
12811 shdr = (union lpfc_sli4_cfg_shdr *)
12812 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
12813 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12814 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12815 if (shdr_status || shdr_add_status || rc) {
12816 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12817 "2507 MQ_DESTROY mailbox failed with "
12818 "status x%x add_status x%x, mbx status x%x\n",
12819 shdr_status, shdr_add_status, rc);
12822 /* Remove mq from any list */
12823 list_del_init(&mq->list);
12824 mempool_free(mbox, mq->phba->mbox_mem_pool);
12829 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
12830 * @wq: The queue structure associated with the queue to destroy.
12832 * This function destroys a queue, as detailed in @wq by sending an mailbox
12833 * command, specific to the type of queue, to the HBA.
12835 * The @wq struct is used to get the queue ID of the queue to destroy.
12837 * On success this function will return a zero. If the queue destroy mailbox
12838 * command fails this function will return -ENXIO.
12841 lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
12843 LPFC_MBOXQ_t *mbox;
12844 int rc, length, status = 0;
12845 uint32_t shdr_status, shdr_add_status;
12846 union lpfc_sli4_cfg_shdr *shdr;
12848 /* sanity check on queue memory */
12851 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
12854 length = (sizeof(struct lpfc_mbx_wq_destroy) -
12855 sizeof(struct lpfc_sli4_cfg_mhdr));
12856 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
12857 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
12858 length, LPFC_SLI4_MBX_EMBED);
12859 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
12861 mbox->vport = wq->phba->pport;
12862 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12863 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
12864 shdr = (union lpfc_sli4_cfg_shdr *)
12865 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
12866 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12867 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12868 if (shdr_status || shdr_add_status || rc) {
12869 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12870 "2508 WQ_DESTROY mailbox failed with "
12871 "status x%x add_status x%x, mbx status x%x\n",
12872 shdr_status, shdr_add_status, rc);
12875 /* Remove wq from any list */
12876 list_del_init(&wq->list);
12877 mempool_free(mbox, wq->phba->mbox_mem_pool);
12882 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
12883 * @rq: The queue structure associated with the queue to destroy.
12885 * This function destroys a queue, as detailed in @rq by sending an mailbox
12886 * command, specific to the type of queue, to the HBA.
12888 * The @rq struct is used to get the queue ID of the queue to destroy.
12890 * On success this function will return a zero. If the queue destroy mailbox
12891 * command fails this function will return -ENXIO.
12894 lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
12895 struct lpfc_queue *drq)
12897 LPFC_MBOXQ_t *mbox;
12898 int rc, length, status = 0;
12899 uint32_t shdr_status, shdr_add_status;
12900 union lpfc_sli4_cfg_shdr *shdr;
12902 /* sanity check on queue memory */
12905 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
12908 length = (sizeof(struct lpfc_mbx_rq_destroy) -
12909 sizeof(struct lpfc_sli4_cfg_mhdr));
12910 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
12911 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
12912 length, LPFC_SLI4_MBX_EMBED);
12913 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
12915 mbox->vport = hrq->phba->pport;
12916 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12917 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
12918 /* The IOCTL status is embedded in the mailbox subheader. */
12919 shdr = (union lpfc_sli4_cfg_shdr *)
12920 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
12921 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12922 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12923 if (shdr_status || shdr_add_status || rc) {
12924 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12925 "2509 RQ_DESTROY mailbox failed with "
12926 "status x%x add_status x%x, mbx status x%x\n",
12927 shdr_status, shdr_add_status, rc);
12928 if (rc != MBX_TIMEOUT)
12929 mempool_free(mbox, hrq->phba->mbox_mem_pool);
12932 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
12934 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
12935 shdr = (union lpfc_sli4_cfg_shdr *)
12936 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
12937 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12938 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12939 if (shdr_status || shdr_add_status || rc) {
12940 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12941 "2510 RQ_DESTROY mailbox failed with "
12942 "status x%x add_status x%x, mbx status x%x\n",
12943 shdr_status, shdr_add_status, rc);
12946 list_del_init(&hrq->list);
12947 list_del_init(&drq->list);
12948 mempool_free(mbox, hrq->phba->mbox_mem_pool);
12953 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
12954 * @phba: The virtual port for which this call being executed.
12955 * @pdma_phys_addr0: Physical address of the 1st SGL page.
12956 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
12957 * @xritag: the xritag that ties this io to the SGL pages.
12959 * This routine will post the sgl pages for the IO that has the xritag
12960 * that is in the iocbq structure. The xritag is assigned during iocbq
12961 * creation and persists for as long as the driver is loaded.
12962 * if the caller has fewer than 256 scatter gather segments to map then
12963 * pdma_phys_addr1 should be 0.
12964 * If the caller needs to map more than 256 scatter gather segment then
12965 * pdma_phys_addr1 should be a valid physical address.
12966 * physical address for SGLs must be 64 byte aligned.
12967 * If you are going to map 2 SGL's then the first one must have 256 entries
12968 * the second sgl can have between 1 and 256 entries.
12972 * -ENXIO, -ENOMEM - Failure
12975 lpfc_sli4_post_sgl(struct lpfc_hba *phba,
12976 dma_addr_t pdma_phys_addr0,
12977 dma_addr_t pdma_phys_addr1,
12980 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
12981 LPFC_MBOXQ_t *mbox;
12983 uint32_t shdr_status, shdr_add_status;
12985 union lpfc_sli4_cfg_shdr *shdr;
12987 if (xritag == NO_XRI) {
12988 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12989 "0364 Invalid param:\n");
12993 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12997 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
12998 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
12999 sizeof(struct lpfc_mbx_post_sgl_pages) -
13000 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
13002 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
13003 &mbox->u.mqe.un.post_sgl_pages;
13004 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
13005 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
13007 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
13008 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
13009 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
13010 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
13012 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
13013 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
13014 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
13015 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
13016 if (!phba->sli4_hba.intr_enable)
13017 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13019 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
13020 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
13022 /* The IOCTL status is embedded in the mailbox subheader. */
13023 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
13024 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13025 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13026 if (rc != MBX_TIMEOUT)
13027 mempool_free(mbox, phba->mbox_mem_pool);
13028 if (shdr_status || shdr_add_status || rc) {
13029 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13030 "2511 POST_SGL mailbox failed with "
13031 "status x%x add_status x%x, mbx status x%x\n",
13032 shdr_status, shdr_add_status, rc);
13039 * lpfc_sli4_alloc_xri - Get an available rpi in the device's range
13040 * @phba: pointer to lpfc hba data structure.
13042 * This routine is invoked to post rpi header templates to the
13043 * HBA consistent with the SLI-4 interface spec. This routine
13044 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
13045 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
13048 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
13049 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
13052 lpfc_sli4_alloc_xri(struct lpfc_hba *phba)
13057 * Fetch the next logical xri. Because this index is logical,
13058 * the driver starts at 0 each time.
13060 spin_lock_irq(&phba->hbalock);
13061 xri = find_next_zero_bit(phba->sli4_hba.xri_bmask,
13062 phba->sli4_hba.max_cfg_param.max_xri, 0);
13063 if (xri >= phba->sli4_hba.max_cfg_param.max_xri) {
13064 spin_unlock_irq(&phba->hbalock);
13067 set_bit(xri, phba->sli4_hba.xri_bmask);
13068 phba->sli4_hba.max_cfg_param.xri_used++;
13069 phba->sli4_hba.xri_count++;
13072 spin_unlock_irq(&phba->hbalock);
13077 * lpfc_sli4_free_xri - Release an xri for reuse.
13078 * @phba: pointer to lpfc hba data structure.
13080 * This routine is invoked to release an xri to the pool of
13081 * available rpis maintained by the driver.
13084 __lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
13086 if (test_and_clear_bit(xri, phba->sli4_hba.xri_bmask)) {
13087 phba->sli4_hba.xri_count--;
13088 phba->sli4_hba.max_cfg_param.xri_used--;
13093 * lpfc_sli4_free_xri - Release an xri for reuse.
13094 * @phba: pointer to lpfc hba data structure.
13096 * This routine is invoked to release an xri to the pool of
13097 * available rpis maintained by the driver.
13100 lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
13102 spin_lock_irq(&phba->hbalock);
13103 __lpfc_sli4_free_xri(phba, xri);
13104 spin_unlock_irq(&phba->hbalock);
13108 * lpfc_sli4_next_xritag - Get an xritag for the io
13109 * @phba: Pointer to HBA context object.
13111 * This function gets an xritag for the iocb. If there is no unused xritag
13112 * it will return 0xffff.
13113 * The function returns the allocated xritag if successful, else returns zero.
13114 * Zero is not a valid xritag.
13115 * The caller is not required to hold any lock.
13118 lpfc_sli4_next_xritag(struct lpfc_hba *phba)
13120 uint16_t xri_index;
13122 xri_index = lpfc_sli4_alloc_xri(phba);
13123 if (xri_index != NO_XRI)
13126 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13127 "2004 Failed to allocate XRI.last XRITAG is %d"
13128 " Max XRI is %d, Used XRI is %d\n",
13130 phba->sli4_hba.max_cfg_param.max_xri,
13131 phba->sli4_hba.max_cfg_param.xri_used);
13136 * lpfc_sli4_post_els_sgl_list - post a block of ELS sgls to the port.
13137 * @phba: pointer to lpfc hba data structure.
13139 * This routine is invoked to post a block of driver's sgl pages to the
13140 * HBA using non-embedded mailbox command. No Lock is held. This routine
13141 * is only called when the driver is loading and after all IO has been
13145 lpfc_sli4_post_els_sgl_list(struct lpfc_hba *phba)
13147 struct lpfc_sglq *sglq_entry;
13148 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
13149 struct sgl_page_pairs *sgl_pg_pairs;
13151 LPFC_MBOXQ_t *mbox;
13152 uint32_t reqlen, alloclen, pg_pairs;
13154 uint16_t xritag_start = 0, lxri = 0;
13155 int els_xri_cnt, rc = 0;
13156 uint32_t shdr_status, shdr_add_status;
13157 union lpfc_sli4_cfg_shdr *shdr;
13159 /* The number of sgls to be posted */
13160 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
13162 reqlen = els_xri_cnt * sizeof(struct sgl_page_pairs) +
13163 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
13164 if (reqlen > SLI4_PAGE_SIZE) {
13165 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13166 "2559 Block sgl registration required DMA "
13167 "size (%d) great than a page\n", reqlen);
13170 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13174 /* Allocate DMA memory and set up the non-embedded mailbox command */
13175 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13176 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
13177 LPFC_SLI4_MBX_NEMBED);
13179 if (alloclen < reqlen) {
13180 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13181 "0285 Allocated DMA memory size (%d) is "
13182 "less than the requested DMA memory "
13183 "size (%d)\n", alloclen, reqlen);
13184 lpfc_sli4_mbox_cmd_free(phba, mbox);
13187 /* Set up the SGL pages in the non-embedded DMA pages */
13188 viraddr = mbox->sge_array->addr[0];
13189 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
13190 sgl_pg_pairs = &sgl->sgl_pg_pairs;
13192 for (pg_pairs = 0; pg_pairs < els_xri_cnt; pg_pairs++) {
13193 sglq_entry = phba->sli4_hba.lpfc_els_sgl_array[pg_pairs];
13196 * Assign the sglq a physical xri only if the driver has not
13197 * initialized those resources. A port reset only needs
13198 * the sglq's posted.
13200 if (bf_get(lpfc_xri_rsrc_rdy, &phba->sli4_hba.sli4_flags) !=
13201 LPFC_XRI_RSRC_RDY) {
13202 lxri = lpfc_sli4_next_xritag(phba);
13203 if (lxri == NO_XRI) {
13204 lpfc_sli4_mbox_cmd_free(phba, mbox);
13207 sglq_entry->sli4_lxritag = lxri;
13208 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
13211 /* Set up the sge entry */
13212 sgl_pg_pairs->sgl_pg0_addr_lo =
13213 cpu_to_le32(putPaddrLow(sglq_entry->phys));
13214 sgl_pg_pairs->sgl_pg0_addr_hi =
13215 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
13216 sgl_pg_pairs->sgl_pg1_addr_lo =
13217 cpu_to_le32(putPaddrLow(0));
13218 sgl_pg_pairs->sgl_pg1_addr_hi =
13219 cpu_to_le32(putPaddrHigh(0));
13221 /* Keep the first xritag on the list */
13223 xritag_start = sglq_entry->sli4_xritag;
13227 /* Complete initialization and perform endian conversion. */
13228 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
13229 bf_set(lpfc_post_sgl_pages_xricnt, sgl, els_xri_cnt);
13230 sgl->word0 = cpu_to_le32(sgl->word0);
13231 if (!phba->sli4_hba.intr_enable)
13232 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13234 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
13235 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
13237 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
13238 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13239 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13240 if (rc != MBX_TIMEOUT)
13241 lpfc_sli4_mbox_cmd_free(phba, mbox);
13242 if (shdr_status || shdr_add_status || rc) {
13243 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13244 "2513 POST_SGL_BLOCK mailbox command failed "
13245 "status x%x add_status x%x mbx status x%x\n",
13246 shdr_status, shdr_add_status, rc);
13251 bf_set(lpfc_xri_rsrc_rdy, &phba->sli4_hba.sli4_flags,
13252 LPFC_XRI_RSRC_RDY);
13257 * lpfc_sli4_post_els_sgl_list_ext - post a block of ELS sgls to the port.
13258 * @phba: pointer to lpfc hba data structure.
13260 * This routine is invoked to post a block of driver's sgl pages to the
13261 * HBA using non-embedded mailbox command. No Lock is held. This routine
13262 * is only called when the driver is loading and after all IO has been
13266 lpfc_sli4_post_els_sgl_list_ext(struct lpfc_hba *phba)
13268 struct lpfc_sglq *sglq_entry;
13269 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
13270 struct sgl_page_pairs *sgl_pg_pairs;
13272 LPFC_MBOXQ_t *mbox;
13273 uint32_t reqlen, alloclen, index;
13275 uint16_t rsrc_start, rsrc_size, els_xri_cnt;
13276 uint16_t xritag_start = 0, lxri = 0;
13277 struct lpfc_rsrc_blks *rsrc_blk;
13278 int cnt, ttl_cnt, rc = 0;
13280 uint32_t shdr_status, shdr_add_status;
13281 union lpfc_sli4_cfg_shdr *shdr;
13283 /* The number of sgls to be posted */
13284 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
13286 reqlen = els_xri_cnt * sizeof(struct sgl_page_pairs) +
13287 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
13288 if (reqlen > SLI4_PAGE_SIZE) {
13289 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13290 "2989 Block sgl registration required DMA "
13291 "size (%d) great than a page\n", reqlen);
13297 list_for_each_entry(rsrc_blk, &phba->sli4_hba.lpfc_xri_blk_list,
13299 rsrc_start = rsrc_blk->rsrc_start;
13300 rsrc_size = rsrc_blk->rsrc_size;
13302 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13303 "3014 Working ELS Extent start %d, cnt %d\n",
13304 rsrc_start, rsrc_size);
13306 loop_cnt = min(els_xri_cnt, rsrc_size);
13307 if (ttl_cnt + loop_cnt >= els_xri_cnt) {
13308 loop_cnt = els_xri_cnt - ttl_cnt;
13309 ttl_cnt = els_xri_cnt;
13312 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13316 * Allocate DMA memory and set up the non-embedded mailbox
13319 alloclen = lpfc_sli4_config(phba, mbox,
13320 LPFC_MBOX_SUBSYSTEM_FCOE,
13321 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
13322 reqlen, LPFC_SLI4_MBX_NEMBED);
13323 if (alloclen < reqlen) {
13324 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13325 "2987 Allocated DMA memory size (%d) "
13326 "is less than the requested DMA memory "
13327 "size (%d)\n", alloclen, reqlen);
13328 lpfc_sli4_mbox_cmd_free(phba, mbox);
13332 /* Set up the SGL pages in the non-embedded DMA pages */
13333 viraddr = mbox->sge_array->addr[0];
13334 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
13335 sgl_pg_pairs = &sgl->sgl_pg_pairs;
13338 * The starting resource may not begin at zero. Control
13339 * the loop variants via the block resource parameters,
13340 * but handle the sge pointers with a zero-based index
13341 * that doesn't get reset per loop pass.
13343 for (index = rsrc_start;
13344 index < rsrc_start + loop_cnt;
13346 sglq_entry = phba->sli4_hba.lpfc_els_sgl_array[cnt];
13349 * Assign the sglq a physical xri only if the driver
13350 * has not initialized those resources. A port reset
13351 * only needs the sglq's posted.
13353 if (bf_get(lpfc_xri_rsrc_rdy,
13354 &phba->sli4_hba.sli4_flags) !=
13355 LPFC_XRI_RSRC_RDY) {
13356 lxri = lpfc_sli4_next_xritag(phba);
13357 if (lxri == NO_XRI) {
13358 lpfc_sli4_mbox_cmd_free(phba, mbox);
13362 sglq_entry->sli4_lxritag = lxri;
13363 sglq_entry->sli4_xritag =
13364 phba->sli4_hba.xri_ids[lxri];
13367 /* Set up the sge entry */
13368 sgl_pg_pairs->sgl_pg0_addr_lo =
13369 cpu_to_le32(putPaddrLow(sglq_entry->phys));
13370 sgl_pg_pairs->sgl_pg0_addr_hi =
13371 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
13372 sgl_pg_pairs->sgl_pg1_addr_lo =
13373 cpu_to_le32(putPaddrLow(0));
13374 sgl_pg_pairs->sgl_pg1_addr_hi =
13375 cpu_to_le32(putPaddrHigh(0));
13377 /* Track the starting physical XRI for the mailbox. */
13378 if (index == rsrc_start)
13379 xritag_start = sglq_entry->sli4_xritag;
13384 /* Complete initialization and perform endian conversion. */
13385 rsrc_blk->rsrc_used += loop_cnt;
13386 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
13387 bf_set(lpfc_post_sgl_pages_xricnt, sgl, loop_cnt);
13388 sgl->word0 = cpu_to_le32(sgl->word0);
13390 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13391 "3015 Post ELS Extent SGL, start %d, "
13392 "cnt %d, used %d\n",
13393 xritag_start, loop_cnt, rsrc_blk->rsrc_used);
13394 if (!phba->sli4_hba.intr_enable)
13395 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13397 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
13398 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
13400 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
13401 shdr_status = bf_get(lpfc_mbox_hdr_status,
13403 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
13405 if (rc != MBX_TIMEOUT)
13406 lpfc_sli4_mbox_cmd_free(phba, mbox);
13407 if (shdr_status || shdr_add_status || rc) {
13408 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13409 "2988 POST_SGL_BLOCK mailbox "
13410 "command failed status x%x "
13411 "add_status x%x mbx status x%x\n",
13412 shdr_status, shdr_add_status, rc);
13416 if (ttl_cnt >= els_xri_cnt)
13422 bf_set(lpfc_xri_rsrc_rdy, &phba->sli4_hba.sli4_flags,
13423 LPFC_XRI_RSRC_RDY);
13428 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
13429 * @phba: pointer to lpfc hba data structure.
13430 * @sblist: pointer to scsi buffer list.
13431 * @count: number of scsi buffers on the list.
13433 * This routine is invoked to post a block of @count scsi sgl pages from a
13434 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
13439 lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba, struct list_head *sblist,
13442 struct lpfc_scsi_buf *psb;
13443 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
13444 struct sgl_page_pairs *sgl_pg_pairs;
13446 LPFC_MBOXQ_t *mbox;
13447 uint32_t reqlen, alloclen, pg_pairs;
13449 uint16_t xritag_start = 0;
13451 uint32_t shdr_status, shdr_add_status;
13452 dma_addr_t pdma_phys_bpl1;
13453 union lpfc_sli4_cfg_shdr *shdr;
13455 /* Calculate the requested length of the dma memory */
13456 reqlen = cnt * sizeof(struct sgl_page_pairs) +
13457 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
13458 if (reqlen > SLI4_PAGE_SIZE) {
13459 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13460 "0217 Block sgl registration required DMA "
13461 "size (%d) great than a page\n", reqlen);
13464 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13466 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13467 "0283 Failed to allocate mbox cmd memory\n");
13471 /* Allocate DMA memory and set up the non-embedded mailbox command */
13472 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13473 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
13474 LPFC_SLI4_MBX_NEMBED);
13476 if (alloclen < reqlen) {
13477 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13478 "2561 Allocated DMA memory size (%d) is "
13479 "less than the requested DMA memory "
13480 "size (%d)\n", alloclen, reqlen);
13481 lpfc_sli4_mbox_cmd_free(phba, mbox);
13485 /* Get the first SGE entry from the non-embedded DMA memory */
13486 viraddr = mbox->sge_array->addr[0];
13488 /* Set up the SGL pages in the non-embedded DMA pages */
13489 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
13490 sgl_pg_pairs = &sgl->sgl_pg_pairs;
13493 list_for_each_entry(psb, sblist, list) {
13494 /* Set up the sge entry */
13495 sgl_pg_pairs->sgl_pg0_addr_lo =
13496 cpu_to_le32(putPaddrLow(psb->dma_phys_bpl));
13497 sgl_pg_pairs->sgl_pg0_addr_hi =
13498 cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl));
13499 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
13500 pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE;
13502 pdma_phys_bpl1 = 0;
13503 sgl_pg_pairs->sgl_pg1_addr_lo =
13504 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
13505 sgl_pg_pairs->sgl_pg1_addr_hi =
13506 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
13507 /* Keep the first xritag on the list */
13509 xritag_start = psb->cur_iocbq.sli4_xritag;
13513 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
13514 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
13515 /* Perform endian conversion if necessary */
13516 sgl->word0 = cpu_to_le32(sgl->word0);
13518 if (!phba->sli4_hba.intr_enable)
13519 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13521 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
13522 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
13524 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
13525 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13526 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13527 if (rc != MBX_TIMEOUT)
13528 lpfc_sli4_mbox_cmd_free(phba, mbox);
13529 if (shdr_status || shdr_add_status || rc) {
13530 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13531 "2564 POST_SGL_BLOCK mailbox command failed "
13532 "status x%x add_status x%x mbx status x%x\n",
13533 shdr_status, shdr_add_status, rc);
13540 * lpfc_sli4_post_scsi_sgl_blk_ext - post a block of scsi sgls to the port.
13541 * @phba: pointer to lpfc hba data structure.
13542 * @sblist: pointer to scsi buffer list.
13543 * @count: number of scsi buffers on the list.
13545 * This routine is invoked to post a block of @count scsi sgl pages from a
13546 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
13551 lpfc_sli4_post_scsi_sgl_blk_ext(struct lpfc_hba *phba, struct list_head *sblist,
13554 struct lpfc_scsi_buf *psb = NULL;
13555 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
13556 struct sgl_page_pairs *sgl_pg_pairs;
13558 LPFC_MBOXQ_t *mbox;
13559 uint32_t reqlen, alloclen, pg_pairs;
13561 uint16_t xri_start = 0, scsi_xri_start;
13562 uint16_t rsrc_range;
13563 int rc = 0, avail_cnt;
13564 uint32_t shdr_status, shdr_add_status;
13565 dma_addr_t pdma_phys_bpl1;
13566 union lpfc_sli4_cfg_shdr *shdr;
13567 struct lpfc_rsrc_blks *rsrc_blk;
13568 uint32_t xri_cnt = 0;
13570 /* Calculate the total requested length of the dma memory */
13571 reqlen = cnt * sizeof(struct sgl_page_pairs) +
13572 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
13573 if (reqlen > SLI4_PAGE_SIZE) {
13574 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13575 "2932 Block sgl registration required DMA "
13576 "size (%d) great than a page\n", reqlen);
13581 * The use of extents requires the driver to post the sgl headers
13582 * in multiple postings to meet the contiguous resource assignment.
13584 psb = list_prepare_entry(psb, sblist, list);
13585 scsi_xri_start = phba->sli4_hba.scsi_xri_start;
13586 list_for_each_entry(rsrc_blk, &phba->sli4_hba.lpfc_xri_blk_list,
13588 rsrc_range = rsrc_blk->rsrc_start + rsrc_blk->rsrc_size;
13589 if (rsrc_range < scsi_xri_start)
13591 else if (rsrc_blk->rsrc_used >= rsrc_blk->rsrc_size)
13594 avail_cnt = rsrc_blk->rsrc_size - rsrc_blk->rsrc_used;
13596 reqlen = (avail_cnt * sizeof(struct sgl_page_pairs)) +
13597 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
13599 * Allocate DMA memory and set up the non-embedded mailbox
13600 * command. The mbox is used to post an SGL page per loop
13601 * but the DMA memory has a use-once semantic so the mailbox
13602 * is used and freed per loop pass.
13604 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13606 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13607 "2933 Failed to allocate mbox cmd "
13611 alloclen = lpfc_sli4_config(phba, mbox,
13612 LPFC_MBOX_SUBSYSTEM_FCOE,
13613 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
13615 LPFC_SLI4_MBX_NEMBED);
13616 if (alloclen < reqlen) {
13617 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13618 "2934 Allocated DMA memory size (%d) "
13619 "is less than the requested DMA memory "
13620 "size (%d)\n", alloclen, reqlen);
13621 lpfc_sli4_mbox_cmd_free(phba, mbox);
13625 /* Get the first SGE entry from the non-embedded DMA memory */
13626 viraddr = mbox->sge_array->addr[0];
13628 /* Set up the SGL pages in the non-embedded DMA pages */
13629 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
13630 sgl_pg_pairs = &sgl->sgl_pg_pairs;
13632 /* pg_pairs tracks posted SGEs per loop iteration. */
13634 list_for_each_entry_continue(psb, sblist, list) {
13635 /* Set up the sge entry */
13636 sgl_pg_pairs->sgl_pg0_addr_lo =
13637 cpu_to_le32(putPaddrLow(psb->dma_phys_bpl));
13638 sgl_pg_pairs->sgl_pg0_addr_hi =
13639 cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl));
13640 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
13641 pdma_phys_bpl1 = psb->dma_phys_bpl +
13644 pdma_phys_bpl1 = 0;
13645 sgl_pg_pairs->sgl_pg1_addr_lo =
13646 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
13647 sgl_pg_pairs->sgl_pg1_addr_hi =
13648 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
13649 /* Keep the first xri for this extent. */
13651 xri_start = psb->cur_iocbq.sli4_xritag;
13657 * Track two exit conditions - the loop has constructed
13658 * all of the caller's SGE pairs or all available
13659 * resource IDs in this extent are consumed.
13661 if ((xri_cnt == cnt) || (pg_pairs >= avail_cnt))
13664 rsrc_blk->rsrc_used += pg_pairs;
13665 bf_set(lpfc_post_sgl_pages_xri, sgl, xri_start);
13666 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
13668 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13669 "3016 Post SCSI Extent SGL, start %d, cnt %d "
13671 xri_start, pg_pairs, rsrc_blk->rsrc_used);
13672 /* Perform endian conversion if necessary */
13673 sgl->word0 = cpu_to_le32(sgl->word0);
13674 if (!phba->sli4_hba.intr_enable)
13675 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13677 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
13678 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
13680 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
13681 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13682 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
13684 if (rc != MBX_TIMEOUT)
13685 lpfc_sli4_mbox_cmd_free(phba, mbox);
13686 if (shdr_status || shdr_add_status || rc) {
13687 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13688 "2935 POST_SGL_BLOCK mailbox command "
13689 "failed status x%x add_status x%x "
13690 "mbx status x%x\n",
13691 shdr_status, shdr_add_status, rc);
13695 /* Post only what is requested. */
13696 if (xri_cnt >= cnt)
13703 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
13704 * @phba: pointer to lpfc_hba struct that the frame was received on
13705 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
13707 * This function checks the fields in the @fc_hdr to see if the FC frame is a
13708 * valid type of frame that the LPFC driver will handle. This function will
13709 * return a zero if the frame is a valid frame or a non zero value when the
13710 * frame does not pass the check.
13713 lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
13715 /* make rctl_names static to save stack space */
13716 static char *rctl_names[] = FC_RCTL_NAMES_INIT;
13717 char *type_names[] = FC_TYPE_NAMES_INIT;
13718 struct fc_vft_header *fc_vft_hdr;
13719 uint32_t *header = (uint32_t *) fc_hdr;
13721 switch (fc_hdr->fh_r_ctl) {
13722 case FC_RCTL_DD_UNCAT: /* uncategorized information */
13723 case FC_RCTL_DD_SOL_DATA: /* solicited data */
13724 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
13725 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
13726 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
13727 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
13728 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
13729 case FC_RCTL_DD_CMD_STATUS: /* command status */
13730 case FC_RCTL_ELS_REQ: /* extended link services request */
13731 case FC_RCTL_ELS_REP: /* extended link services reply */
13732 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
13733 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
13734 case FC_RCTL_BA_NOP: /* basic link service NOP */
13735 case FC_RCTL_BA_ABTS: /* basic link service abort */
13736 case FC_RCTL_BA_RMC: /* remove connection */
13737 case FC_RCTL_BA_ACC: /* basic accept */
13738 case FC_RCTL_BA_RJT: /* basic reject */
13739 case FC_RCTL_BA_PRMT:
13740 case FC_RCTL_ACK_1: /* acknowledge_1 */
13741 case FC_RCTL_ACK_0: /* acknowledge_0 */
13742 case FC_RCTL_P_RJT: /* port reject */
13743 case FC_RCTL_F_RJT: /* fabric reject */
13744 case FC_RCTL_P_BSY: /* port busy */
13745 case FC_RCTL_F_BSY: /* fabric busy to data frame */
13746 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
13747 case FC_RCTL_LCR: /* link credit reset */
13748 case FC_RCTL_END: /* end */
13750 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
13751 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
13752 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
13753 return lpfc_fc_frame_check(phba, fc_hdr);
13757 switch (fc_hdr->fh_type) {
13769 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
13770 "2538 Received frame rctl:%s type:%s "
13771 "Frame Data:%08x %08x %08x %08x %08x %08x\n",
13772 rctl_names[fc_hdr->fh_r_ctl],
13773 type_names[fc_hdr->fh_type],
13774 be32_to_cpu(header[0]), be32_to_cpu(header[1]),
13775 be32_to_cpu(header[2]), be32_to_cpu(header[3]),
13776 be32_to_cpu(header[4]), be32_to_cpu(header[5]));
13779 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
13780 "2539 Dropped frame rctl:%s type:%s\n",
13781 rctl_names[fc_hdr->fh_r_ctl],
13782 type_names[fc_hdr->fh_type]);
13787 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
13788 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
13790 * This function processes the FC header to retrieve the VFI from the VF
13791 * header, if one exists. This function will return the VFI if one exists
13792 * or 0 if no VSAN Header exists.
13795 lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
13797 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
13799 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
13801 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
13805 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
13806 * @phba: Pointer to the HBA structure to search for the vport on
13807 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
13808 * @fcfi: The FC Fabric ID that the frame came from
13810 * This function searches the @phba for a vport that matches the content of the
13811 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
13812 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
13813 * returns the matching vport pointer or NULL if unable to match frame to a
13816 static struct lpfc_vport *
13817 lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
13820 struct lpfc_vport **vports;
13821 struct lpfc_vport *vport = NULL;
13823 uint32_t did = (fc_hdr->fh_d_id[0] << 16 |
13824 fc_hdr->fh_d_id[1] << 8 |
13825 fc_hdr->fh_d_id[2]);
13826 if (did == Fabric_DID)
13827 return phba->pport;
13828 vports = lpfc_create_vport_work_array(phba);
13829 if (vports != NULL)
13830 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
13831 if (phba->fcf.fcfi == fcfi &&
13832 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
13833 vports[i]->fc_myDID == did) {
13838 lpfc_destroy_vport_work_array(phba, vports);
13843 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
13844 * @vport: The vport to work on.
13846 * This function updates the receive sequence time stamp for this vport. The
13847 * receive sequence time stamp indicates the time that the last frame of the
13848 * the sequence that has been idle for the longest amount of time was received.
13849 * the driver uses this time stamp to indicate if any received sequences have
13853 lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
13855 struct lpfc_dmabuf *h_buf;
13856 struct hbq_dmabuf *dmabuf = NULL;
13858 /* get the oldest sequence on the rcv list */
13859 h_buf = list_get_first(&vport->rcv_buffer_list,
13860 struct lpfc_dmabuf, list);
13863 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
13864 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
13868 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
13869 * @vport: The vport that the received sequences were sent to.
13871 * This function cleans up all outstanding received sequences. This is called
13872 * by the driver when a link event or user action invalidates all the received
13876 lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
13878 struct lpfc_dmabuf *h_buf, *hnext;
13879 struct lpfc_dmabuf *d_buf, *dnext;
13880 struct hbq_dmabuf *dmabuf = NULL;
13882 /* start with the oldest sequence on the rcv list */
13883 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
13884 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
13885 list_del_init(&dmabuf->hbuf.list);
13886 list_for_each_entry_safe(d_buf, dnext,
13887 &dmabuf->dbuf.list, list) {
13888 list_del_init(&d_buf->list);
13889 lpfc_in_buf_free(vport->phba, d_buf);
13891 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
13896 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
13897 * @vport: The vport that the received sequences were sent to.
13899 * This function determines whether any received sequences have timed out by
13900 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
13901 * indicates that there is at least one timed out sequence this routine will
13902 * go through the received sequences one at a time from most inactive to most
13903 * active to determine which ones need to be cleaned up. Once it has determined
13904 * that a sequence needs to be cleaned up it will simply free up the resources
13905 * without sending an abort.
13908 lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
13910 struct lpfc_dmabuf *h_buf, *hnext;
13911 struct lpfc_dmabuf *d_buf, *dnext;
13912 struct hbq_dmabuf *dmabuf = NULL;
13913 unsigned long timeout;
13914 int abort_count = 0;
13916 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
13917 vport->rcv_buffer_time_stamp);
13918 if (list_empty(&vport->rcv_buffer_list) ||
13919 time_before(jiffies, timeout))
13921 /* start with the oldest sequence on the rcv list */
13922 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
13923 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
13924 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
13925 dmabuf->time_stamp);
13926 if (time_before(jiffies, timeout))
13929 list_del_init(&dmabuf->hbuf.list);
13930 list_for_each_entry_safe(d_buf, dnext,
13931 &dmabuf->dbuf.list, list) {
13932 list_del_init(&d_buf->list);
13933 lpfc_in_buf_free(vport->phba, d_buf);
13935 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
13938 lpfc_update_rcv_time_stamp(vport);
13942 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
13943 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
13945 * This function searches through the existing incomplete sequences that have
13946 * been sent to this @vport. If the frame matches one of the incomplete
13947 * sequences then the dbuf in the @dmabuf is added to the list of frames that
13948 * make up that sequence. If no sequence is found that matches this frame then
13949 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
13950 * This function returns a pointer to the first dmabuf in the sequence list that
13951 * the frame was linked to.
13953 static struct hbq_dmabuf *
13954 lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
13956 struct fc_frame_header *new_hdr;
13957 struct fc_frame_header *temp_hdr;
13958 struct lpfc_dmabuf *d_buf;
13959 struct lpfc_dmabuf *h_buf;
13960 struct hbq_dmabuf *seq_dmabuf = NULL;
13961 struct hbq_dmabuf *temp_dmabuf = NULL;
13963 INIT_LIST_HEAD(&dmabuf->dbuf.list);
13964 dmabuf->time_stamp = jiffies;
13965 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
13966 /* Use the hdr_buf to find the sequence that this frame belongs to */
13967 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
13968 temp_hdr = (struct fc_frame_header *)h_buf->virt;
13969 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
13970 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
13971 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
13973 /* found a pending sequence that matches this frame */
13974 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
13979 * This indicates first frame received for this sequence.
13980 * Queue the buffer on the vport's rcv_buffer_list.
13982 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
13983 lpfc_update_rcv_time_stamp(vport);
13986 temp_hdr = seq_dmabuf->hbuf.virt;
13987 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
13988 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
13989 list_del_init(&seq_dmabuf->hbuf.list);
13990 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
13991 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
13992 lpfc_update_rcv_time_stamp(vport);
13995 /* move this sequence to the tail to indicate a young sequence */
13996 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
13997 seq_dmabuf->time_stamp = jiffies;
13998 lpfc_update_rcv_time_stamp(vport);
13999 if (list_empty(&seq_dmabuf->dbuf.list)) {
14000 temp_hdr = dmabuf->hbuf.virt;
14001 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
14004 /* find the correct place in the sequence to insert this frame */
14005 list_for_each_entry_reverse(d_buf, &seq_dmabuf->dbuf.list, list) {
14006 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14007 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
14009 * If the frame's sequence count is greater than the frame on
14010 * the list then insert the frame right after this frame
14012 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
14013 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
14014 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
14022 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
14023 * @vport: pointer to a vitural port
14024 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14026 * This function tries to abort from the partially assembed sequence, described
14027 * by the information from basic abbort @dmabuf. It checks to see whether such
14028 * partially assembled sequence held by the driver. If so, it shall free up all
14029 * the frames from the partially assembled sequence.
14032 * true -- if there is matching partially assembled sequence present and all
14033 * the frames freed with the sequence;
14034 * false -- if there is no matching partially assembled sequence present so
14035 * nothing got aborted in the lower layer driver
14038 lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
14039 struct hbq_dmabuf *dmabuf)
14041 struct fc_frame_header *new_hdr;
14042 struct fc_frame_header *temp_hdr;
14043 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
14044 struct hbq_dmabuf *seq_dmabuf = NULL;
14046 /* Use the hdr_buf to find the sequence that matches this frame */
14047 INIT_LIST_HEAD(&dmabuf->dbuf.list);
14048 INIT_LIST_HEAD(&dmabuf->hbuf.list);
14049 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14050 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
14051 temp_hdr = (struct fc_frame_header *)h_buf->virt;
14052 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
14053 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
14054 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
14056 /* found a pending sequence that matches this frame */
14057 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14061 /* Free up all the frames from the partially assembled sequence */
14063 list_for_each_entry_safe(d_buf, n_buf,
14064 &seq_dmabuf->dbuf.list, list) {
14065 list_del_init(&d_buf->list);
14066 lpfc_in_buf_free(vport->phba, d_buf);
14074 * lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler
14075 * @phba: Pointer to HBA context object.
14076 * @cmd_iocbq: pointer to the command iocbq structure.
14077 * @rsp_iocbq: pointer to the response iocbq structure.
14079 * This function handles the sequence abort response iocb command complete
14080 * event. It properly releases the memory allocated to the sequence abort
14084 lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba *phba,
14085 struct lpfc_iocbq *cmd_iocbq,
14086 struct lpfc_iocbq *rsp_iocbq)
14089 lpfc_sli_release_iocbq(phba, cmd_iocbq);
14091 /* Failure means BLS ABORT RSP did not get delivered to remote node*/
14092 if (rsp_iocbq && rsp_iocbq->iocb.ulpStatus)
14093 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14094 "3154 BLS ABORT RSP failed, data: x%x/x%x\n",
14095 rsp_iocbq->iocb.ulpStatus,
14096 rsp_iocbq->iocb.un.ulpWord[4]);
14100 * lpfc_sli4_xri_inrange - check xri is in range of xris owned by driver.
14101 * @phba: Pointer to HBA context object.
14102 * @xri: xri id in transaction.
14104 * This function validates the xri maps to the known range of XRIs allocated an
14105 * used by the driver.
14108 lpfc_sli4_xri_inrange(struct lpfc_hba *phba,
14113 for (i = 0; i < phba->sli4_hba.max_cfg_param.max_xri; i++) {
14114 if (xri == phba->sli4_hba.xri_ids[i])
14122 * lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort
14123 * @phba: Pointer to HBA context object.
14124 * @fc_hdr: pointer to a FC frame header.
14126 * This function sends a basic response to a previous unsol sequence abort
14127 * event after aborting the sequence handling.
14130 lpfc_sli4_seq_abort_rsp(struct lpfc_hba *phba,
14131 struct fc_frame_header *fc_hdr)
14133 struct lpfc_iocbq *ctiocb = NULL;
14134 struct lpfc_nodelist *ndlp;
14135 uint16_t oxid, rxid;
14136 uint32_t sid, fctl;
14140 if (!lpfc_is_link_up(phba))
14143 sid = sli4_sid_from_fc_hdr(fc_hdr);
14144 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
14145 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
14147 ndlp = lpfc_findnode_did(phba->pport, sid);
14149 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
14150 "1268 Find ndlp returned NULL for oxid:x%x "
14151 "SID:x%x\n", oxid, sid);
14154 if (lpfc_sli4_xri_inrange(phba, rxid))
14155 lpfc_set_rrq_active(phba, ndlp, rxid, oxid, 0);
14157 /* Allocate buffer for rsp iocb */
14158 ctiocb = lpfc_sli_get_iocbq(phba);
14162 /* Extract the F_CTL field from FC_HDR */
14163 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
14165 icmd = &ctiocb->iocb;
14166 icmd->un.xseq64.bdl.bdeSize = 0;
14167 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
14168 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
14169 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
14170 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
14172 /* Fill in the rest of iocb fields */
14173 icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
14174 icmd->ulpBdeCount = 0;
14176 icmd->ulpClass = CLASS3;
14177 icmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
14178 ctiocb->context1 = ndlp;
14180 ctiocb->iocb_cmpl = NULL;
14181 ctiocb->vport = phba->pport;
14182 ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_rsp_cmpl;
14183 ctiocb->sli4_lxritag = NO_XRI;
14184 ctiocb->sli4_xritag = NO_XRI;
14186 /* If the oxid maps to the FCP XRI range or if it is out of range,
14187 * send a BLS_RJT. The driver no longer has that exchange.
14188 * Override the IOCB for a BA_RJT.
14190 if (oxid > (phba->sli4_hba.max_cfg_param.max_xri +
14191 phba->sli4_hba.max_cfg_param.xri_base) ||
14192 oxid > (lpfc_sli4_get_els_iocb_cnt(phba) +
14193 phba->sli4_hba.max_cfg_param.xri_base)) {
14194 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
14195 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
14196 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
14197 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
14200 if (fctl & FC_FC_EX_CTX) {
14201 /* ABTS sent by responder to CT exchange, construction
14202 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
14203 * field and RX_ID from ABTS for RX_ID field.
14205 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_RSP);
14206 bf_set(lpfc_abts_rxid, &icmd->un.bls_rsp, rxid);
14208 /* ABTS sent by initiator to CT exchange, construction
14209 * of BA_ACC will need to allocate a new XRI as for the
14210 * XRI_TAG and RX_ID fields.
14212 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_INT);
14213 bf_set(lpfc_abts_rxid, &icmd->un.bls_rsp, NO_XRI);
14215 bf_set(lpfc_abts_oxid, &icmd->un.bls_rsp, oxid);
14217 /* Xmit CT abts response on exchange <xid> */
14218 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
14219 "1200 Send BLS cmd x%x on oxid x%x Data: x%x\n",
14220 icmd->un.xseq64.w5.hcsw.Rctl, oxid, phba->link_state);
14222 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
14223 if (rc == IOCB_ERROR) {
14224 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
14225 "2925 Failed to issue CT ABTS RSP x%x on "
14226 "xri x%x, Data x%x\n",
14227 icmd->un.xseq64.w5.hcsw.Rctl, oxid,
14229 lpfc_sli_release_iocbq(phba, ctiocb);
14234 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
14235 * @vport: Pointer to the vport on which this sequence was received
14236 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14238 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
14239 * receive sequence is only partially assembed by the driver, it shall abort
14240 * the partially assembled frames for the sequence. Otherwise, if the
14241 * unsolicited receive sequence has been completely assembled and passed to
14242 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
14243 * unsolicited sequence has been aborted. After that, it will issue a basic
14244 * accept to accept the abort.
14247 lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
14248 struct hbq_dmabuf *dmabuf)
14250 struct lpfc_hba *phba = vport->phba;
14251 struct fc_frame_header fc_hdr;
14255 /* Make a copy of fc_hdr before the dmabuf being released */
14256 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
14257 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
14259 if (fctl & FC_FC_EX_CTX) {
14261 * ABTS sent by responder to exchange, just free the buffer
14263 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14266 * ABTS sent by initiator to exchange, need to do cleanup
14268 /* Try to abort partially assembled seq */
14269 abts_par = lpfc_sli4_abort_partial_seq(vport, dmabuf);
14271 /* Send abort to ULP if partially seq abort failed */
14272 if (abts_par == false)
14273 lpfc_sli4_send_seq_to_ulp(vport, dmabuf);
14275 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14277 /* Send basic accept (BA_ACC) to the abort requester */
14278 lpfc_sli4_seq_abort_rsp(phba, &fc_hdr);
14282 * lpfc_seq_complete - Indicates if a sequence is complete
14283 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14285 * This function checks the sequence, starting with the frame described by
14286 * @dmabuf, to see if all the frames associated with this sequence are present.
14287 * the frames associated with this sequence are linked to the @dmabuf using the
14288 * dbuf list. This function looks for two major things. 1) That the first frame
14289 * has a sequence count of zero. 2) There is a frame with last frame of sequence
14290 * set. 3) That there are no holes in the sequence count. The function will
14291 * return 1 when the sequence is complete, otherwise it will return 0.
14294 lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
14296 struct fc_frame_header *hdr;
14297 struct lpfc_dmabuf *d_buf;
14298 struct hbq_dmabuf *seq_dmabuf;
14302 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14303 /* make sure first fame of sequence has a sequence count of zero */
14304 if (hdr->fh_seq_cnt != seq_count)
14306 fctl = (hdr->fh_f_ctl[0] << 16 |
14307 hdr->fh_f_ctl[1] << 8 |
14309 /* If last frame of sequence we can return success. */
14310 if (fctl & FC_FC_END_SEQ)
14312 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
14313 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14314 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
14315 /* If there is a hole in the sequence count then fail. */
14316 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
14318 fctl = (hdr->fh_f_ctl[0] << 16 |
14319 hdr->fh_f_ctl[1] << 8 |
14321 /* If last frame of sequence we can return success. */
14322 if (fctl & FC_FC_END_SEQ)
14329 * lpfc_prep_seq - Prep sequence for ULP processing
14330 * @vport: Pointer to the vport on which this sequence was received
14331 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14333 * This function takes a sequence, described by a list of frames, and creates
14334 * a list of iocbq structures to describe the sequence. This iocbq list will be
14335 * used to issue to the generic unsolicited sequence handler. This routine
14336 * returns a pointer to the first iocbq in the list. If the function is unable
14337 * to allocate an iocbq then it throw out the received frames that were not
14338 * able to be described and return a pointer to the first iocbq. If unable to
14339 * allocate any iocbqs (including the first) this function will return NULL.
14341 static struct lpfc_iocbq *
14342 lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
14344 struct hbq_dmabuf *hbq_buf;
14345 struct lpfc_dmabuf *d_buf, *n_buf;
14346 struct lpfc_iocbq *first_iocbq, *iocbq;
14347 struct fc_frame_header *fc_hdr;
14349 uint32_t len, tot_len;
14350 struct ulp_bde64 *pbde;
14352 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
14353 /* remove from receive buffer list */
14354 list_del_init(&seq_dmabuf->hbuf.list);
14355 lpfc_update_rcv_time_stamp(vport);
14356 /* get the Remote Port's SID */
14357 sid = sli4_sid_from_fc_hdr(fc_hdr);
14359 /* Get an iocbq struct to fill in. */
14360 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
14362 /* Initialize the first IOCB. */
14363 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
14364 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
14365 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
14366 first_iocbq->iocb.ulpContext = NO_XRI;
14367 first_iocbq->iocb.unsli3.rcvsli3.ox_id =
14368 be16_to_cpu(fc_hdr->fh_ox_id);
14369 /* iocbq is prepped for internal consumption. Physical vpi. */
14370 first_iocbq->iocb.unsli3.rcvsli3.vpi =
14371 vport->phba->vpi_ids[vport->vpi];
14372 /* put the first buffer into the first IOCBq */
14373 first_iocbq->context2 = &seq_dmabuf->dbuf;
14374 first_iocbq->context3 = NULL;
14375 first_iocbq->iocb.ulpBdeCount = 1;
14376 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
14377 LPFC_DATA_BUF_SIZE;
14378 first_iocbq->iocb.un.rcvels.remoteID = sid;
14379 tot_len = bf_get(lpfc_rcqe_length,
14380 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
14381 first_iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
14383 iocbq = first_iocbq;
14385 * Each IOCBq can have two Buffers assigned, so go through the list
14386 * of buffers for this sequence and save two buffers in each IOCBq
14388 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
14390 lpfc_in_buf_free(vport->phba, d_buf);
14393 if (!iocbq->context3) {
14394 iocbq->context3 = d_buf;
14395 iocbq->iocb.ulpBdeCount++;
14396 pbde = (struct ulp_bde64 *)
14397 &iocbq->iocb.unsli3.sli3Words[4];
14398 pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
14400 /* We need to get the size out of the right CQE */
14401 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14402 len = bf_get(lpfc_rcqe_length,
14403 &hbq_buf->cq_event.cqe.rcqe_cmpl);
14404 iocbq->iocb.unsli3.rcvsli3.acc_len += len;
14407 iocbq = lpfc_sli_get_iocbq(vport->phba);
14410 first_iocbq->iocb.ulpStatus =
14411 IOSTAT_FCP_RSP_ERROR;
14412 first_iocbq->iocb.un.ulpWord[4] =
14413 IOERR_NO_RESOURCES;
14415 lpfc_in_buf_free(vport->phba, d_buf);
14418 iocbq->context2 = d_buf;
14419 iocbq->context3 = NULL;
14420 iocbq->iocb.ulpBdeCount = 1;
14421 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
14422 LPFC_DATA_BUF_SIZE;
14424 /* We need to get the size out of the right CQE */
14425 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14426 len = bf_get(lpfc_rcqe_length,
14427 &hbq_buf->cq_event.cqe.rcqe_cmpl);
14429 iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
14431 iocbq->iocb.un.rcvels.remoteID = sid;
14432 list_add_tail(&iocbq->list, &first_iocbq->list);
14435 return first_iocbq;
14439 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
14440 struct hbq_dmabuf *seq_dmabuf)
14442 struct fc_frame_header *fc_hdr;
14443 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
14444 struct lpfc_hba *phba = vport->phba;
14446 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
14447 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
14449 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14450 "2707 Ring %d handler: Failed to allocate "
14451 "iocb Rctl x%x Type x%x received\n",
14453 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
14456 if (!lpfc_complete_unsol_iocb(phba,
14457 &phba->sli.ring[LPFC_ELS_RING],
14458 iocbq, fc_hdr->fh_r_ctl,
14460 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14461 "2540 Ring %d handler: unexpected Rctl "
14462 "x%x Type x%x received\n",
14464 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
14466 /* Free iocb created in lpfc_prep_seq */
14467 list_for_each_entry_safe(curr_iocb, next_iocb,
14468 &iocbq->list, list) {
14469 list_del_init(&curr_iocb->list);
14470 lpfc_sli_release_iocbq(phba, curr_iocb);
14472 lpfc_sli_release_iocbq(phba, iocbq);
14476 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
14477 * @phba: Pointer to HBA context object.
14479 * This function is called with no lock held. This function processes all
14480 * the received buffers and gives it to upper layers when a received buffer
14481 * indicates that it is the final frame in the sequence. The interrupt
14482 * service routine processes received buffers at interrupt contexts and adds
14483 * received dma buffers to the rb_pend_list queue and signals the worker thread.
14484 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
14485 * appropriate receive function when the final frame in a sequence is received.
14488 lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
14489 struct hbq_dmabuf *dmabuf)
14491 struct hbq_dmabuf *seq_dmabuf;
14492 struct fc_frame_header *fc_hdr;
14493 struct lpfc_vport *vport;
14496 /* Process each received buffer */
14497 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14498 /* check to see if this a valid type of frame */
14499 if (lpfc_fc_frame_check(phba, fc_hdr)) {
14500 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14503 if ((bf_get(lpfc_cqe_code,
14504 &dmabuf->cq_event.cqe.rcqe_cmpl) == CQE_CODE_RECEIVE_V1))
14505 fcfi = bf_get(lpfc_rcqe_fcf_id_v1,
14506 &dmabuf->cq_event.cqe.rcqe_cmpl);
14508 fcfi = bf_get(lpfc_rcqe_fcf_id,
14509 &dmabuf->cq_event.cqe.rcqe_cmpl);
14510 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi);
14511 if (!vport || !(vport->vpi_state & LPFC_VPI_REGISTERED)) {
14512 /* throw out the frame */
14513 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14516 /* Handle the basic abort sequence (BA_ABTS) event */
14517 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
14518 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
14522 /* Link this frame */
14523 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
14525 /* unable to add frame to vport - throw it out */
14526 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14529 /* If not last frame in sequence continue processing frames. */
14530 if (!lpfc_seq_complete(seq_dmabuf))
14533 /* Send the complete sequence to the upper layer protocol */
14534 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
14538 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
14539 * @phba: pointer to lpfc hba data structure.
14541 * This routine is invoked to post rpi header templates to the
14542 * HBA consistent with the SLI-4 interface spec. This routine
14543 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
14544 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
14546 * This routine does not require any locks. It's usage is expected
14547 * to be driver load or reset recovery when the driver is
14552 * -EIO - The mailbox failed to complete successfully.
14553 * When this error occurs, the driver is not guaranteed
14554 * to have any rpi regions posted to the device and
14555 * must either attempt to repost the regions or take a
14559 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
14561 struct lpfc_rpi_hdr *rpi_page;
14565 /* SLI4 ports that support extents do not require RPI headers. */
14566 if (!phba->sli4_hba.rpi_hdrs_in_use)
14568 if (phba->sli4_hba.extents_in_use)
14571 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
14573 * Assign the rpi headers a physical rpi only if the driver
14574 * has not initialized those resources. A port reset only
14575 * needs the headers posted.
14577 if (bf_get(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags) !=
14579 rpi_page->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
14581 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
14582 if (rc != MBX_SUCCESS) {
14583 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14584 "2008 Error %d posting all rpi "
14592 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags,
14593 LPFC_RPI_RSRC_RDY);
14598 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
14599 * @phba: pointer to lpfc hba data structure.
14600 * @rpi_page: pointer to the rpi memory region.
14602 * This routine is invoked to post a single rpi header to the
14603 * HBA consistent with the SLI-4 interface spec. This memory region
14604 * maps up to 64 rpi context regions.
14608 * -ENOMEM - No available memory
14609 * -EIO - The mailbox failed to complete successfully.
14612 lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
14614 LPFC_MBOXQ_t *mboxq;
14615 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
14617 uint32_t shdr_status, shdr_add_status;
14618 union lpfc_sli4_cfg_shdr *shdr;
14620 /* SLI4 ports that support extents do not require RPI headers. */
14621 if (!phba->sli4_hba.rpi_hdrs_in_use)
14623 if (phba->sli4_hba.extents_in_use)
14626 /* The port is notified of the header region via a mailbox command. */
14627 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14629 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14630 "2001 Unable to allocate memory for issuing "
14631 "SLI_CONFIG_SPECIAL mailbox command\n");
14635 /* Post all rpi memory regions to the port. */
14636 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
14637 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
14638 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
14639 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
14640 sizeof(struct lpfc_sli4_cfg_mhdr),
14641 LPFC_SLI4_MBX_EMBED);
14644 /* Post the physical rpi to the port for this rpi header. */
14645 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
14646 rpi_page->start_rpi);
14647 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
14648 hdr_tmpl, rpi_page->page_count);
14650 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
14651 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
14652 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
14653 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
14654 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14655 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14656 if (rc != MBX_TIMEOUT)
14657 mempool_free(mboxq, phba->mbox_mem_pool);
14658 if (shdr_status || shdr_add_status || rc) {
14659 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14660 "2514 POST_RPI_HDR mailbox failed with "
14661 "status x%x add_status x%x, mbx status x%x\n",
14662 shdr_status, shdr_add_status, rc);
14669 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
14670 * @phba: pointer to lpfc hba data structure.
14672 * This routine is invoked to post rpi header templates to the
14673 * HBA consistent with the SLI-4 interface spec. This routine
14674 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
14675 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
14678 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
14679 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
14682 lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
14685 uint16_t max_rpi, rpi_limit;
14686 uint16_t rpi_remaining, lrpi = 0;
14687 struct lpfc_rpi_hdr *rpi_hdr;
14689 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
14690 rpi_limit = phba->sli4_hba.next_rpi;
14693 * Fetch the next logical rpi. Because this index is logical,
14694 * the driver starts at 0 each time.
14696 spin_lock_irq(&phba->hbalock);
14697 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, 0);
14698 if (rpi >= rpi_limit)
14699 rpi = LPFC_RPI_ALLOC_ERROR;
14701 set_bit(rpi, phba->sli4_hba.rpi_bmask);
14702 phba->sli4_hba.max_cfg_param.rpi_used++;
14703 phba->sli4_hba.rpi_count++;
14707 * Don't try to allocate more rpi header regions if the device limit
14708 * has been exhausted.
14710 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
14711 (phba->sli4_hba.rpi_count >= max_rpi)) {
14712 spin_unlock_irq(&phba->hbalock);
14717 * RPI header postings are not required for SLI4 ports capable of
14720 if (!phba->sli4_hba.rpi_hdrs_in_use) {
14721 spin_unlock_irq(&phba->hbalock);
14726 * If the driver is running low on rpi resources, allocate another
14727 * page now. Note that the next_rpi value is used because
14728 * it represents how many are actually in use whereas max_rpi notes
14729 * how many are supported max by the device.
14731 rpi_remaining = phba->sli4_hba.next_rpi - phba->sli4_hba.rpi_count;
14732 spin_unlock_irq(&phba->hbalock);
14733 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
14734 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
14736 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14737 "2002 Error Could not grow rpi "
14740 lrpi = rpi_hdr->start_rpi;
14741 rpi_hdr->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
14742 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
14750 * lpfc_sli4_free_rpi - Release an rpi for reuse.
14751 * @phba: pointer to lpfc hba data structure.
14753 * This routine is invoked to release an rpi to the pool of
14754 * available rpis maintained by the driver.
14757 __lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
14759 if (test_and_clear_bit(rpi, phba->sli4_hba.rpi_bmask)) {
14760 phba->sli4_hba.rpi_count--;
14761 phba->sli4_hba.max_cfg_param.rpi_used--;
14766 * lpfc_sli4_free_rpi - Release an rpi for reuse.
14767 * @phba: pointer to lpfc hba data structure.
14769 * This routine is invoked to release an rpi to the pool of
14770 * available rpis maintained by the driver.
14773 lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
14775 spin_lock_irq(&phba->hbalock);
14776 __lpfc_sli4_free_rpi(phba, rpi);
14777 spin_unlock_irq(&phba->hbalock);
14781 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
14782 * @phba: pointer to lpfc hba data structure.
14784 * This routine is invoked to remove the memory region that
14785 * provided rpi via a bitmask.
14788 lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
14790 kfree(phba->sli4_hba.rpi_bmask);
14791 kfree(phba->sli4_hba.rpi_ids);
14792 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
14796 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
14797 * @phba: pointer to lpfc hba data structure.
14799 * This routine is invoked to remove the memory region that
14800 * provided rpi via a bitmask.
14803 lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp,
14804 void (*cmpl)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *arg)
14806 LPFC_MBOXQ_t *mboxq;
14807 struct lpfc_hba *phba = ndlp->phba;
14810 /* The port is notified of the header region via a mailbox command. */
14811 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14815 /* Post all rpi memory regions to the port. */
14816 lpfc_resume_rpi(mboxq, ndlp);
14818 mboxq->mbox_cmpl = cmpl;
14819 mboxq->context1 = arg;
14820 mboxq->context2 = ndlp;
14822 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14823 mboxq->vport = ndlp->vport;
14824 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
14825 if (rc == MBX_NOT_FINISHED) {
14826 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14827 "2010 Resume RPI Mailbox failed "
14828 "status %d, mbxStatus x%x\n", rc,
14829 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
14830 mempool_free(mboxq, phba->mbox_mem_pool);
14837 * lpfc_sli4_init_vpi - Initialize a vpi with the port
14838 * @vport: Pointer to the vport for which the vpi is being initialized
14840 * This routine is invoked to activate a vpi with the port.
14844 * -Evalue otherwise
14847 lpfc_sli4_init_vpi(struct lpfc_vport *vport)
14849 LPFC_MBOXQ_t *mboxq;
14851 int retval = MBX_SUCCESS;
14853 struct lpfc_hba *phba = vport->phba;
14854 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14857 lpfc_init_vpi(phba, mboxq, vport->vpi);
14858 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
14859 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
14860 if (rc != MBX_SUCCESS) {
14861 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
14862 "2022 INIT VPI Mailbox failed "
14863 "status %d, mbxStatus x%x\n", rc,
14864 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
14867 if (rc != MBX_TIMEOUT)
14868 mempool_free(mboxq, vport->phba->mbox_mem_pool);
14874 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
14875 * @phba: pointer to lpfc hba data structure.
14876 * @mboxq: Pointer to mailbox object.
14878 * This routine is invoked to manually add a single FCF record. The caller
14879 * must pass a completely initialized FCF_Record. This routine takes
14880 * care of the nonembedded mailbox operations.
14883 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
14886 union lpfc_sli4_cfg_shdr *shdr;
14887 uint32_t shdr_status, shdr_add_status;
14889 virt_addr = mboxq->sge_array->addr[0];
14890 /* The IOCTL status is embedded in the mailbox subheader. */
14891 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
14892 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14893 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14895 if ((shdr_status || shdr_add_status) &&
14896 (shdr_status != STATUS_FCF_IN_USE))
14897 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14898 "2558 ADD_FCF_RECORD mailbox failed with "
14899 "status x%x add_status x%x\n",
14900 shdr_status, shdr_add_status);
14902 lpfc_sli4_mbox_cmd_free(phba, mboxq);
14906 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
14907 * @phba: pointer to lpfc hba data structure.
14908 * @fcf_record: pointer to the initialized fcf record to add.
14910 * This routine is invoked to manually add a single FCF record. The caller
14911 * must pass a completely initialized FCF_Record. This routine takes
14912 * care of the nonembedded mailbox operations.
14915 lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
14918 LPFC_MBOXQ_t *mboxq;
14921 dma_addr_t phys_addr;
14922 struct lpfc_mbx_sge sge;
14923 uint32_t alloc_len, req_len;
14926 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14928 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14929 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
14933 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
14936 /* Allocate DMA memory and set up the non-embedded mailbox command */
14937 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
14938 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
14939 req_len, LPFC_SLI4_MBX_NEMBED);
14940 if (alloc_len < req_len) {
14941 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14942 "2523 Allocated DMA memory size (x%x) is "
14943 "less than the requested DMA memory "
14944 "size (x%x)\n", alloc_len, req_len);
14945 lpfc_sli4_mbox_cmd_free(phba, mboxq);
14950 * Get the first SGE entry from the non-embedded DMA memory. This
14951 * routine only uses a single SGE.
14953 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
14954 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
14955 virt_addr = mboxq->sge_array->addr[0];
14957 * Configure the FCF record for FCFI 0. This is the driver's
14958 * hardcoded default and gets used in nonFIP mode.
14960 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
14961 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
14962 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
14965 * Copy the fcf_index and the FCF Record Data. The data starts after
14966 * the FCoE header plus word10. The data copy needs to be endian
14969 bytep += sizeof(uint32_t);
14970 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
14971 mboxq->vport = phba->pport;
14972 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
14973 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
14974 if (rc == MBX_NOT_FINISHED) {
14975 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14976 "2515 ADD_FCF_RECORD mailbox failed with "
14977 "status 0x%x\n", rc);
14978 lpfc_sli4_mbox_cmd_free(phba, mboxq);
14987 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
14988 * @phba: pointer to lpfc hba data structure.
14989 * @fcf_record: pointer to the fcf record to write the default data.
14990 * @fcf_index: FCF table entry index.
14992 * This routine is invoked to build the driver's default FCF record. The
14993 * values used are hardcoded. This routine handles memory initialization.
14997 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
14998 struct fcf_record *fcf_record,
14999 uint16_t fcf_index)
15001 memset(fcf_record, 0, sizeof(struct fcf_record));
15002 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
15003 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
15004 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
15005 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
15006 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
15007 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
15008 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
15009 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
15010 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
15011 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
15012 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
15013 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
15014 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
15015 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
15016 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
15017 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
15018 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
15019 /* Set the VLAN bit map */
15020 if (phba->valid_vlan) {
15021 fcf_record->vlan_bitmap[phba->vlan_id / 8]
15022 = 1 << (phba->vlan_id % 8);
15027 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
15028 * @phba: pointer to lpfc hba data structure.
15029 * @fcf_index: FCF table entry offset.
15031 * This routine is invoked to scan the entire FCF table by reading FCF
15032 * record and processing it one at a time starting from the @fcf_index
15033 * for initial FCF discovery or fast FCF failover rediscovery.
15035 * Return 0 if the mailbox command is submitted successfully, none 0
15039 lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
15042 LPFC_MBOXQ_t *mboxq;
15044 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
15045 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15047 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15048 "2000 Failed to allocate mbox for "
15051 goto fail_fcf_scan;
15053 /* Construct the read FCF record mailbox command */
15054 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
15057 goto fail_fcf_scan;
15059 /* Issue the mailbox command asynchronously */
15060 mboxq->vport = phba->pport;
15061 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
15063 spin_lock_irq(&phba->hbalock);
15064 phba->hba_flag |= FCF_TS_INPROG;
15065 spin_unlock_irq(&phba->hbalock);
15067 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15068 if (rc == MBX_NOT_FINISHED)
15071 /* Reset eligible FCF count for new scan */
15072 if (fcf_index == LPFC_FCOE_FCF_GET_FIRST)
15073 phba->fcf.eligible_fcf_cnt = 0;
15079 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15080 /* FCF scan failed, clear FCF_TS_INPROG flag */
15081 spin_lock_irq(&phba->hbalock);
15082 phba->hba_flag &= ~FCF_TS_INPROG;
15083 spin_unlock_irq(&phba->hbalock);
15089 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
15090 * @phba: pointer to lpfc hba data structure.
15091 * @fcf_index: FCF table entry offset.
15093 * This routine is invoked to read an FCF record indicated by @fcf_index
15094 * and to use it for FLOGI roundrobin FCF failover.
15096 * Return 0 if the mailbox command is submitted successfully, none 0
15100 lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
15103 LPFC_MBOXQ_t *mboxq;
15105 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15107 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
15108 "2763 Failed to allocate mbox for "
15111 goto fail_fcf_read;
15113 /* Construct the read FCF record mailbox command */
15114 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
15117 goto fail_fcf_read;
15119 /* Issue the mailbox command asynchronously */
15120 mboxq->vport = phba->pport;
15121 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
15122 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15123 if (rc == MBX_NOT_FINISHED)
15129 if (error && mboxq)
15130 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15135 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
15136 * @phba: pointer to lpfc hba data structure.
15137 * @fcf_index: FCF table entry offset.
15139 * This routine is invoked to read an FCF record indicated by @fcf_index to
15140 * determine whether it's eligible for FLOGI roundrobin failover list.
15142 * Return 0 if the mailbox command is submitted successfully, none 0
15146 lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
15149 LPFC_MBOXQ_t *mboxq;
15151 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15153 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
15154 "2758 Failed to allocate mbox for "
15157 goto fail_fcf_read;
15159 /* Construct the read FCF record mailbox command */
15160 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
15163 goto fail_fcf_read;
15165 /* Issue the mailbox command asynchronously */
15166 mboxq->vport = phba->pport;
15167 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
15168 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15169 if (rc == MBX_NOT_FINISHED)
15175 if (error && mboxq)
15176 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15181 * lpfc_check_next_fcf_pri
15182 * phba pointer to the lpfc_hba struct for this port.
15183 * This routine is called from the lpfc_sli4_fcf_rr_next_index_get
15184 * routine when the rr_bmask is empty. The FCF indecies are put into the
15185 * rr_bmask based on their priority level. Starting from the highest priority
15186 * to the lowest. The most likely FCF candidate will be in the highest
15187 * priority group. When this routine is called it searches the fcf_pri list for
15188 * next lowest priority group and repopulates the rr_bmask with only those
15191 * 1=success 0=failure
15194 lpfc_check_next_fcf_pri_level(struct lpfc_hba *phba)
15196 uint16_t next_fcf_pri;
15197 uint16_t last_index;
15198 struct lpfc_fcf_pri *fcf_pri;
15202 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
15203 LPFC_SLI4_FCF_TBL_INDX_MAX);
15204 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15205 "3060 Last IDX %d\n", last_index);
15206 if (list_empty(&phba->fcf.fcf_pri_list)) {
15207 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
15208 "3061 Last IDX %d\n", last_index);
15209 return 0; /* Empty rr list */
15213 * Clear the rr_bmask and set all of the bits that are at this
15216 memset(phba->fcf.fcf_rr_bmask, 0,
15217 sizeof(*phba->fcf.fcf_rr_bmask));
15218 spin_lock_irq(&phba->hbalock);
15219 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
15220 if (fcf_pri->fcf_rec.flag & LPFC_FCF_FLOGI_FAILED)
15223 * the 1st priority that has not FLOGI failed
15224 * will be the highest.
15227 next_fcf_pri = fcf_pri->fcf_rec.priority;
15228 spin_unlock_irq(&phba->hbalock);
15229 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
15230 rc = lpfc_sli4_fcf_rr_index_set(phba,
15231 fcf_pri->fcf_rec.fcf_index);
15235 spin_lock_irq(&phba->hbalock);
15238 * if next_fcf_pri was not set above and the list is not empty then
15239 * we have failed flogis on all of them. So reset flogi failed
15240 * and start at the begining.
15242 if (!next_fcf_pri && !list_empty(&phba->fcf.fcf_pri_list)) {
15243 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
15244 fcf_pri->fcf_rec.flag &= ~LPFC_FCF_FLOGI_FAILED;
15246 * the 1st priority that has not FLOGI failed
15247 * will be the highest.
15250 next_fcf_pri = fcf_pri->fcf_rec.priority;
15251 spin_unlock_irq(&phba->hbalock);
15252 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
15253 rc = lpfc_sli4_fcf_rr_index_set(phba,
15254 fcf_pri->fcf_rec.fcf_index);
15258 spin_lock_irq(&phba->hbalock);
15262 spin_unlock_irq(&phba->hbalock);
15267 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
15268 * @phba: pointer to lpfc hba data structure.
15270 * This routine is to get the next eligible FCF record index in a round
15271 * robin fashion. If the next eligible FCF record index equals to the
15272 * initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
15273 * shall be returned, otherwise, the next eligible FCF record's index
15274 * shall be returned.
15277 lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
15279 uint16_t next_fcf_index;
15281 /* Search start from next bit of currently registered FCF index */
15283 next_fcf_index = (phba->fcf.current_rec.fcf_indx + 1) %
15284 LPFC_SLI4_FCF_TBL_INDX_MAX;
15285 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
15286 LPFC_SLI4_FCF_TBL_INDX_MAX,
15289 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
15290 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
15292 * If we have wrapped then we need to clear the bits that
15293 * have been tested so that we can detect when we should
15294 * change the priority level.
15296 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
15297 LPFC_SLI4_FCF_TBL_INDX_MAX, 0);
15301 /* Check roundrobin failover list empty condition */
15302 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX ||
15303 next_fcf_index == phba->fcf.current_rec.fcf_indx) {
15305 * If next fcf index is not found check if there are lower
15306 * Priority level fcf's in the fcf_priority list.
15307 * Set up the rr_bmask with all of the avaiable fcf bits
15308 * at that level and continue the selection process.
15310 if (lpfc_check_next_fcf_pri_level(phba))
15311 goto next_priority;
15312 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
15313 "2844 No roundrobin failover FCF available\n");
15314 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX)
15315 return LPFC_FCOE_FCF_NEXT_NONE;
15317 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
15318 "3063 Only FCF available idx %d, flag %x\n",
15320 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag);
15321 return next_fcf_index;
15325 if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX &&
15326 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag &
15327 LPFC_FCF_FLOGI_FAILED)
15328 goto next_priority;
15330 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15331 "2845 Get next roundrobin failover FCF (x%x)\n",
15334 return next_fcf_index;
15338 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
15339 * @phba: pointer to lpfc hba data structure.
15341 * This routine sets the FCF record index in to the eligible bmask for
15342 * roundrobin failover search. It checks to make sure that the index
15343 * does not go beyond the range of the driver allocated bmask dimension
15344 * before setting the bit.
15346 * Returns 0 if the index bit successfully set, otherwise, it returns
15350 lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
15352 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
15353 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
15354 "2610 FCF (x%x) reached driver's book "
15355 "keeping dimension:x%x\n",
15356 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
15359 /* Set the eligible FCF record index bmask */
15360 set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
15362 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15363 "2790 Set FCF (x%x) to roundrobin FCF failover "
15364 "bmask\n", fcf_index);
15370 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
15371 * @phba: pointer to lpfc hba data structure.
15373 * This routine clears the FCF record index from the eligible bmask for
15374 * roundrobin failover search. It checks to make sure that the index
15375 * does not go beyond the range of the driver allocated bmask dimension
15376 * before clearing the bit.
15379 lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
15381 struct lpfc_fcf_pri *fcf_pri;
15382 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
15383 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
15384 "2762 FCF (x%x) reached driver's book "
15385 "keeping dimension:x%x\n",
15386 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
15389 /* Clear the eligible FCF record index bmask */
15390 spin_lock_irq(&phba->hbalock);
15391 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
15392 if (fcf_pri->fcf_rec.fcf_index == fcf_index) {
15393 list_del_init(&fcf_pri->list);
15397 spin_unlock_irq(&phba->hbalock);
15398 clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
15400 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15401 "2791 Clear FCF (x%x) from roundrobin failover "
15402 "bmask\n", fcf_index);
15406 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
15407 * @phba: pointer to lpfc hba data structure.
15409 * This routine is the completion routine for the rediscover FCF table mailbox
15410 * command. If the mailbox command returned failure, it will try to stop the
15411 * FCF rediscover wait timer.
15414 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
15416 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
15417 uint32_t shdr_status, shdr_add_status;
15419 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
15421 shdr_status = bf_get(lpfc_mbox_hdr_status,
15422 &redisc_fcf->header.cfg_shdr.response);
15423 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
15424 &redisc_fcf->header.cfg_shdr.response);
15425 if (shdr_status || shdr_add_status) {
15426 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
15427 "2746 Requesting for FCF rediscovery failed "
15428 "status x%x add_status x%x\n",
15429 shdr_status, shdr_add_status);
15430 if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
15431 spin_lock_irq(&phba->hbalock);
15432 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
15433 spin_unlock_irq(&phba->hbalock);
15435 * CVL event triggered FCF rediscover request failed,
15436 * last resort to re-try current registered FCF entry.
15438 lpfc_retry_pport_discovery(phba);
15440 spin_lock_irq(&phba->hbalock);
15441 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
15442 spin_unlock_irq(&phba->hbalock);
15444 * DEAD FCF event triggered FCF rediscover request
15445 * failed, last resort to fail over as a link down
15446 * to FCF registration.
15448 lpfc_sli4_fcf_dead_failthrough(phba);
15451 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15452 "2775 Start FCF rediscover quiescent timer\n");
15454 * Start FCF rediscovery wait timer for pending FCF
15455 * before rescan FCF record table.
15457 lpfc_fcf_redisc_wait_start_timer(phba);
15460 mempool_free(mbox, phba->mbox_mem_pool);
15464 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
15465 * @phba: pointer to lpfc hba data structure.
15467 * This routine is invoked to request for rediscovery of the entire FCF table
15471 lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
15473 LPFC_MBOXQ_t *mbox;
15474 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
15477 /* Cancel retry delay timers to all vports before FCF rediscover */
15478 lpfc_cancel_all_vport_retry_delay_timer(phba);
15480 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15482 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15483 "2745 Failed to allocate mbox for "
15484 "requesting FCF rediscover.\n");
15488 length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
15489 sizeof(struct lpfc_sli4_cfg_mhdr));
15490 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15491 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
15492 length, LPFC_SLI4_MBX_EMBED);
15494 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
15495 /* Set count to 0 for invalidating the entire FCF database */
15496 bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
15498 /* Issue the mailbox command asynchronously */
15499 mbox->vport = phba->pport;
15500 mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
15501 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
15503 if (rc == MBX_NOT_FINISHED) {
15504 mempool_free(mbox, phba->mbox_mem_pool);
15511 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
15512 * @phba: pointer to lpfc hba data structure.
15514 * This function is the failover routine as a last resort to the FCF DEAD
15515 * event when driver failed to perform fast FCF failover.
15518 lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
15520 uint32_t link_state;
15523 * Last resort as FCF DEAD event failover will treat this as
15524 * a link down, but save the link state because we don't want
15525 * it to be changed to Link Down unless it is already down.
15527 link_state = phba->link_state;
15528 lpfc_linkdown(phba);
15529 phba->link_state = link_state;
15531 /* Unregister FCF if no devices connected to it */
15532 lpfc_unregister_unused_fcf(phba);
15536 * lpfc_sli_get_config_region23 - Get sli3 port region 23 data.
15537 * @phba: pointer to lpfc hba data structure.
15538 * @rgn23_data: pointer to configure region 23 data.
15540 * This function gets SLI3 port configure region 23 data through memory dump
15541 * mailbox command. When it successfully retrieves data, the size of the data
15542 * will be returned, otherwise, 0 will be returned.
15545 lpfc_sli_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
15547 LPFC_MBOXQ_t *pmb = NULL;
15549 uint32_t offset = 0;
15555 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15557 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15558 "2600 failed to allocate mailbox memory\n");
15564 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
15565 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
15567 if (rc != MBX_SUCCESS) {
15568 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15569 "2601 failed to read config "
15570 "region 23, rc 0x%x Status 0x%x\n",
15571 rc, mb->mbxStatus);
15572 mb->un.varDmp.word_cnt = 0;
15575 * dump mem may return a zero when finished or we got a
15576 * mailbox error, either way we are done.
15578 if (mb->un.varDmp.word_cnt == 0)
15580 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
15581 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
15583 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
15584 rgn23_data + offset,
15585 mb->un.varDmp.word_cnt);
15586 offset += mb->un.varDmp.word_cnt;
15587 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
15589 mempool_free(pmb, phba->mbox_mem_pool);
15594 * lpfc_sli4_get_config_region23 - Get sli4 port region 23 data.
15595 * @phba: pointer to lpfc hba data structure.
15596 * @rgn23_data: pointer to configure region 23 data.
15598 * This function gets SLI4 port configure region 23 data through memory dump
15599 * mailbox command. When it successfully retrieves data, the size of the data
15600 * will be returned, otherwise, 0 will be returned.
15603 lpfc_sli4_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
15605 LPFC_MBOXQ_t *mboxq = NULL;
15606 struct lpfc_dmabuf *mp = NULL;
15607 struct lpfc_mqe *mqe;
15608 uint32_t data_length = 0;
15614 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15616 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15617 "3105 failed to allocate mailbox memory\n");
15621 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq))
15623 mqe = &mboxq->u.mqe;
15624 mp = (struct lpfc_dmabuf *) mboxq->context1;
15625 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
15628 data_length = mqe->un.mb_words[5];
15629 if (data_length == 0)
15631 if (data_length > DMP_RGN23_SIZE) {
15635 lpfc_sli_pcimem_bcopy((char *)mp->virt, rgn23_data, data_length);
15637 mempool_free(mboxq, phba->mbox_mem_pool);
15639 lpfc_mbuf_free(phba, mp->virt, mp->phys);
15642 return data_length;
15646 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
15647 * @phba: pointer to lpfc hba data structure.
15649 * This function read region 23 and parse TLV for port status to
15650 * decide if the user disaled the port. If the TLV indicates the
15651 * port is disabled, the hba_flag is set accordingly.
15654 lpfc_sli_read_link_ste(struct lpfc_hba *phba)
15656 uint8_t *rgn23_data = NULL;
15657 uint32_t if_type, data_size, sub_tlv_len, tlv_offset;
15658 uint32_t offset = 0;
15660 /* Get adapter Region 23 data */
15661 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
15665 if (phba->sli_rev < LPFC_SLI_REV4)
15666 data_size = lpfc_sli_get_config_region23(phba, rgn23_data);
15668 if_type = bf_get(lpfc_sli_intf_if_type,
15669 &phba->sli4_hba.sli_intf);
15670 if (if_type == LPFC_SLI_INTF_IF_TYPE_0)
15672 data_size = lpfc_sli4_get_config_region23(phba, rgn23_data);
15678 /* Check the region signature first */
15679 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
15680 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15681 "2619 Config region 23 has bad signature\n");
15686 /* Check the data structure version */
15687 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
15688 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15689 "2620 Config region 23 has bad version\n");
15694 /* Parse TLV entries in the region */
15695 while (offset < data_size) {
15696 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
15699 * If the TLV is not driver specific TLV or driver id is
15700 * not linux driver id, skip the record.
15702 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
15703 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
15704 (rgn23_data[offset + 3] != 0)) {
15705 offset += rgn23_data[offset + 1] * 4 + 4;
15709 /* Driver found a driver specific TLV in the config region */
15710 sub_tlv_len = rgn23_data[offset + 1] * 4;
15715 * Search for configured port state sub-TLV.
15717 while ((offset < data_size) &&
15718 (tlv_offset < sub_tlv_len)) {
15719 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
15724 if (rgn23_data[offset] != PORT_STE_TYPE) {
15725 offset += rgn23_data[offset + 1] * 4 + 4;
15726 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
15730 /* This HBA contains PORT_STE configured */
15731 if (!rgn23_data[offset + 2])
15732 phba->hba_flag |= LINK_DISABLED;
15744 * lpfc_wr_object - write an object to the firmware
15745 * @phba: HBA structure that indicates port to create a queue on.
15746 * @dmabuf_list: list of dmabufs to write to the port.
15747 * @size: the total byte value of the objects to write to the port.
15748 * @offset: the current offset to be used to start the transfer.
15750 * This routine will create a wr_object mailbox command to send to the port.
15751 * the mailbox command will be constructed using the dma buffers described in
15752 * @dmabuf_list to create a list of BDEs. This routine will fill in as many
15753 * BDEs that the imbedded mailbox can support. The @offset variable will be
15754 * used to indicate the starting offset of the transfer and will also return
15755 * the offset after the write object mailbox has completed. @size is used to
15756 * determine the end of the object and whether the eof bit should be set.
15758 * Return 0 is successful and offset will contain the the new offset to use
15759 * for the next write.
15760 * Return negative value for error cases.
15763 lpfc_wr_object(struct lpfc_hba *phba, struct list_head *dmabuf_list,
15764 uint32_t size, uint32_t *offset)
15766 struct lpfc_mbx_wr_object *wr_object;
15767 LPFC_MBOXQ_t *mbox;
15769 uint32_t shdr_status, shdr_add_status;
15771 union lpfc_sli4_cfg_shdr *shdr;
15772 struct lpfc_dmabuf *dmabuf;
15773 uint32_t written = 0;
15775 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15779 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
15780 LPFC_MBOX_OPCODE_WRITE_OBJECT,
15781 sizeof(struct lpfc_mbx_wr_object) -
15782 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
15784 wr_object = (struct lpfc_mbx_wr_object *)&mbox->u.mqe.un.wr_object;
15785 wr_object->u.request.write_offset = *offset;
15786 sprintf((uint8_t *)wr_object->u.request.object_name, "/");
15787 wr_object->u.request.object_name[0] =
15788 cpu_to_le32(wr_object->u.request.object_name[0]);
15789 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 0);
15790 list_for_each_entry(dmabuf, dmabuf_list, list) {
15791 if (i >= LPFC_MBX_WR_CONFIG_MAX_BDE || written >= size)
15793 wr_object->u.request.bde[i].addrLow = putPaddrLow(dmabuf->phys);
15794 wr_object->u.request.bde[i].addrHigh =
15795 putPaddrHigh(dmabuf->phys);
15796 if (written + SLI4_PAGE_SIZE >= size) {
15797 wr_object->u.request.bde[i].tus.f.bdeSize =
15799 written += (size - written);
15800 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 1);
15802 wr_object->u.request.bde[i].tus.f.bdeSize =
15804 written += SLI4_PAGE_SIZE;
15808 wr_object->u.request.bde_count = i;
15809 bf_set(lpfc_wr_object_write_length, &wr_object->u.request, written);
15810 if (!phba->sli4_hba.intr_enable)
15811 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15813 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
15814 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
15816 /* The IOCTL status is embedded in the mailbox subheader. */
15817 shdr = (union lpfc_sli4_cfg_shdr *) &wr_object->header.cfg_shdr;
15818 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15819 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15820 if (rc != MBX_TIMEOUT)
15821 mempool_free(mbox, phba->mbox_mem_pool);
15822 if (shdr_status || shdr_add_status || rc) {
15823 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15824 "3025 Write Object mailbox failed with "
15825 "status x%x add_status x%x, mbx status x%x\n",
15826 shdr_status, shdr_add_status, rc);
15829 *offset += wr_object->u.response.actual_write_length;
15834 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
15835 * @vport: pointer to vport data structure.
15837 * This function iterate through the mailboxq and clean up all REG_LOGIN
15838 * and REG_VPI mailbox commands associated with the vport. This function
15839 * is called when driver want to restart discovery of the vport due to
15840 * a Clear Virtual Link event.
15843 lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
15845 struct lpfc_hba *phba = vport->phba;
15846 LPFC_MBOXQ_t *mb, *nextmb;
15847 struct lpfc_dmabuf *mp;
15848 struct lpfc_nodelist *ndlp;
15849 struct lpfc_nodelist *act_mbx_ndlp = NULL;
15850 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
15851 LIST_HEAD(mbox_cmd_list);
15852 uint8_t restart_loop;
15854 /* Clean up internally queued mailbox commands with the vport */
15855 spin_lock_irq(&phba->hbalock);
15856 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
15857 if (mb->vport != vport)
15860 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
15861 (mb->u.mb.mbxCommand != MBX_REG_VPI))
15864 list_del(&mb->list);
15865 list_add_tail(&mb->list, &mbox_cmd_list);
15867 /* Clean up active mailbox command with the vport */
15868 mb = phba->sli.mbox_active;
15869 if (mb && (mb->vport == vport)) {
15870 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
15871 (mb->u.mb.mbxCommand == MBX_REG_VPI))
15872 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15873 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
15874 act_mbx_ndlp = (struct lpfc_nodelist *)mb->context2;
15875 /* Put reference count for delayed processing */
15876 act_mbx_ndlp = lpfc_nlp_get(act_mbx_ndlp);
15877 /* Unregister the RPI when mailbox complete */
15878 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
15881 /* Cleanup any mailbox completions which are not yet processed */
15884 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
15886 * If this mailox is already processed or it is
15887 * for another vport ignore it.
15889 if ((mb->vport != vport) ||
15890 (mb->mbox_flag & LPFC_MBX_IMED_UNREG))
15893 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
15894 (mb->u.mb.mbxCommand != MBX_REG_VPI))
15897 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15898 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
15899 ndlp = (struct lpfc_nodelist *)mb->context2;
15900 /* Unregister the RPI when mailbox complete */
15901 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
15903 spin_unlock_irq(&phba->hbalock);
15904 spin_lock(shost->host_lock);
15905 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
15906 spin_unlock(shost->host_lock);
15907 spin_lock_irq(&phba->hbalock);
15911 } while (restart_loop);
15913 spin_unlock_irq(&phba->hbalock);
15915 /* Release the cleaned-up mailbox commands */
15916 while (!list_empty(&mbox_cmd_list)) {
15917 list_remove_head(&mbox_cmd_list, mb, LPFC_MBOXQ_t, list);
15918 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
15919 mp = (struct lpfc_dmabuf *) (mb->context1);
15921 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
15924 ndlp = (struct lpfc_nodelist *) mb->context2;
15925 mb->context2 = NULL;
15927 spin_lock(shost->host_lock);
15928 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
15929 spin_unlock(shost->host_lock);
15930 lpfc_nlp_put(ndlp);
15933 mempool_free(mb, phba->mbox_mem_pool);
15936 /* Release the ndlp with the cleaned-up active mailbox command */
15937 if (act_mbx_ndlp) {
15938 spin_lock(shost->host_lock);
15939 act_mbx_ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
15940 spin_unlock(shost->host_lock);
15941 lpfc_nlp_put(act_mbx_ndlp);
15946 * lpfc_drain_txq - Drain the txq
15947 * @phba: Pointer to HBA context object.
15949 * This function attempt to submit IOCBs on the txq
15950 * to the adapter. For SLI4 adapters, the txq contains
15951 * ELS IOCBs that have been deferred because the there
15952 * are no SGLs. This congestion can occur with large
15953 * vport counts during node discovery.
15957 lpfc_drain_txq(struct lpfc_hba *phba)
15959 LIST_HEAD(completions);
15960 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
15961 struct lpfc_iocbq *piocbq = 0;
15962 unsigned long iflags = 0;
15963 char *fail_msg = NULL;
15964 struct lpfc_sglq *sglq;
15965 union lpfc_wqe wqe;
15967 spin_lock_irqsave(&phba->hbalock, iflags);
15968 if (pring->txq_cnt > pring->txq_max)
15969 pring->txq_max = pring->txq_cnt;
15971 spin_unlock_irqrestore(&phba->hbalock, iflags);
15973 while (pring->txq_cnt) {
15974 spin_lock_irqsave(&phba->hbalock, iflags);
15976 piocbq = lpfc_sli_ringtx_get(phba, pring);
15977 sglq = __lpfc_sli_get_sglq(phba, piocbq);
15979 __lpfc_sli_ringtx_put(phba, pring, piocbq);
15980 spin_unlock_irqrestore(&phba->hbalock, iflags);
15984 /* The txq_cnt out of sync. This should
15987 sglq = __lpfc_clear_active_sglq(phba,
15988 sglq->sli4_lxritag);
15989 spin_unlock_irqrestore(&phba->hbalock, iflags);
15990 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15991 "2823 txq empty and txq_cnt is %d\n ",
15997 /* The xri and iocb resources secured,
15998 * attempt to issue request
16000 piocbq->sli4_lxritag = sglq->sli4_lxritag;
16001 piocbq->sli4_xritag = sglq->sli4_xritag;
16002 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocbq, sglq))
16003 fail_msg = "to convert bpl to sgl";
16004 else if (lpfc_sli4_iocb2wqe(phba, piocbq, &wqe))
16005 fail_msg = "to convert iocb to wqe";
16006 else if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
16007 fail_msg = " - Wq is full";
16009 lpfc_sli_ringtxcmpl_put(phba, pring, piocbq);
16012 /* Failed means we can't issue and need to cancel */
16013 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16014 "2822 IOCB failed %s iotag 0x%x "
16017 piocbq->iotag, piocbq->sli4_xritag);
16018 list_add_tail(&piocbq->list, &completions);
16020 spin_unlock_irqrestore(&phba->hbalock, iflags);
16023 /* Cancel all the IOCBs that cannot be issued */
16024 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
16025 IOERR_SLI_ABORTED);
16027 return pring->txq_cnt;