1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2012 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 *,
70 static int lpfc_sli4_post_els_sgl_list(struct lpfc_hba *, struct list_head *,
72 static void lpfc_sli4_hba_handle_eqe(struct lpfc_hba *, struct lpfc_eqe *,
76 lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq)
82 * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
83 * @q: The Work Queue to operate on.
84 * @wqe: The work Queue Entry to put on the Work queue.
86 * This routine will copy the contents of @wqe to the next available entry on
87 * the @q. This function will then ring the Work Queue Doorbell to signal the
88 * HBA to start processing the Work Queue Entry. This function returns 0 if
89 * successful. If no entries are available on @q then this function will return
91 * The caller is expected to hold the hbalock when calling this routine.
94 lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe)
96 union lpfc_wqe *temp_wqe;
97 struct lpfc_register doorbell;
101 /* sanity check on queue memory */
104 temp_wqe = q->qe[q->host_index].wqe;
106 /* If the host has not yet processed the next entry then we are done */
107 idx = ((q->host_index + 1) % q->entry_count);
108 if (idx == q->hba_index) {
113 /* set consumption flag every once in a while */
114 if (!((q->host_index + 1) % q->entry_repost))
115 bf_set(wqe_wqec, &wqe->generic.wqe_com, 1);
116 if (q->phba->sli3_options & LPFC_SLI4_PHWQ_ENABLED)
117 bf_set(wqe_wqid, &wqe->generic.wqe_com, q->queue_id);
118 lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size);
120 /* Update the host index before invoking device */
121 host_index = q->host_index;
127 if (q->db_format == LPFC_DB_LIST_FORMAT) {
128 bf_set(lpfc_wq_db_list_fm_num_posted, &doorbell, 1);
129 bf_set(lpfc_wq_db_list_fm_index, &doorbell, host_index);
130 bf_set(lpfc_wq_db_list_fm_id, &doorbell, q->queue_id);
131 } else if (q->db_format == LPFC_DB_RING_FORMAT) {
132 bf_set(lpfc_wq_db_ring_fm_num_posted, &doorbell, 1);
133 bf_set(lpfc_wq_db_ring_fm_id, &doorbell, q->queue_id);
137 writel(doorbell.word0, q->db_regaddr);
143 * lpfc_sli4_wq_release - Updates internal hba index for WQ
144 * @q: The Work Queue to operate on.
145 * @index: The index to advance the hba index to.
147 * This routine will update the HBA index of a queue to reflect consumption of
148 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
149 * an entry the host calls this function to update the queue's internal
150 * pointers. This routine returns the number of entries that were consumed by
154 lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index)
156 uint32_t released = 0;
158 /* sanity check on queue memory */
162 if (q->hba_index == index)
165 q->hba_index = ((q->hba_index + 1) % q->entry_count);
167 } while (q->hba_index != index);
172 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
173 * @q: The Mailbox Queue to operate on.
174 * @wqe: The Mailbox Queue Entry to put on the Work queue.
176 * This routine will copy the contents of @mqe to the next available entry on
177 * the @q. This function will then ring the Work Queue Doorbell to signal the
178 * HBA to start processing the Work Queue Entry. This function returns 0 if
179 * successful. If no entries are available on @q then this function will return
181 * The caller is expected to hold the hbalock when calling this routine.
184 lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
186 struct lpfc_mqe *temp_mqe;
187 struct lpfc_register doorbell;
190 /* sanity check on queue memory */
193 temp_mqe = q->qe[q->host_index].mqe;
195 /* If the host has not yet processed the next entry then we are done */
196 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
198 lpfc_sli_pcimem_bcopy(mqe, temp_mqe, q->entry_size);
199 /* Save off the mailbox pointer for completion */
200 q->phba->mbox = (MAILBOX_t *)temp_mqe;
202 /* Update the host index before invoking device */
203 host_index = q->host_index;
204 q->host_index = ((q->host_index + 1) % q->entry_count);
208 bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1);
209 bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id);
210 writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr);
215 * lpfc_sli4_mq_release - Updates internal hba index for MQ
216 * @q: The Mailbox Queue to operate on.
218 * This routine will update the HBA index of a queue to reflect consumption of
219 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
220 * an entry the host calls this function to update the queue's internal
221 * pointers. This routine returns the number of entries that were consumed by
225 lpfc_sli4_mq_release(struct lpfc_queue *q)
227 /* sanity check on queue memory */
231 /* Clear the mailbox pointer for completion */
232 q->phba->mbox = NULL;
233 q->hba_index = ((q->hba_index + 1) % q->entry_count);
238 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
239 * @q: The Event Queue to get the first valid EQE from
241 * This routine will get the first valid Event Queue Entry from @q, update
242 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
243 * the Queue (no more work to do), or the Queue is full of EQEs that have been
244 * processed, but not popped back to the HBA then this routine will return NULL.
246 static struct lpfc_eqe *
247 lpfc_sli4_eq_get(struct lpfc_queue *q)
249 struct lpfc_eqe *eqe;
252 /* sanity check on queue memory */
255 eqe = q->qe[q->hba_index].eqe;
257 /* If the next EQE is not valid then we are done */
258 if (!bf_get_le32(lpfc_eqe_valid, eqe))
260 /* If the host has not yet processed the next entry then we are done */
261 idx = ((q->hba_index + 1) % q->entry_count);
262 if (idx == q->host_index)
270 * lpfc_sli4_eq_clr_intr - Turn off interrupts from this EQ
271 * @q: The Event Queue to disable interrupts
275 lpfc_sli4_eq_clr_intr(struct lpfc_queue *q)
277 struct lpfc_register doorbell;
280 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
281 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
282 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
283 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
284 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
285 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
289 * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
290 * @q: The Event Queue that the host has completed processing for.
291 * @arm: Indicates whether the host wants to arms this CQ.
293 * This routine will mark all Event Queue Entries on @q, from the last
294 * known completed entry to the last entry that was processed, as completed
295 * by clearing the valid bit for each completion queue entry. Then it will
296 * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
297 * The internal host index in the @q will be updated by this routine to indicate
298 * that the host has finished processing the entries. The @arm parameter
299 * indicates that the queue should be rearmed when ringing the doorbell.
301 * This function will return the number of EQEs that were popped.
304 lpfc_sli4_eq_release(struct lpfc_queue *q, bool arm)
306 uint32_t released = 0;
307 struct lpfc_eqe *temp_eqe;
308 struct lpfc_register doorbell;
310 /* sanity check on queue memory */
314 /* while there are valid entries */
315 while (q->hba_index != q->host_index) {
316 temp_eqe = q->qe[q->host_index].eqe;
317 bf_set_le32(lpfc_eqe_valid, temp_eqe, 0);
319 q->host_index = ((q->host_index + 1) % q->entry_count);
321 if (unlikely(released == 0 && !arm))
324 /* ring doorbell for number popped */
327 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
328 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
330 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
331 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
332 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
333 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
334 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
335 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
336 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
337 if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
338 readl(q->phba->sli4_hba.EQCQDBregaddr);
343 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
344 * @q: The Completion Queue to get the first valid CQE from
346 * This routine will get the first valid Completion Queue Entry from @q, update
347 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
348 * the Queue (no more work to do), or the Queue is full of CQEs that have been
349 * processed, but not popped back to the HBA then this routine will return NULL.
351 static struct lpfc_cqe *
352 lpfc_sli4_cq_get(struct lpfc_queue *q)
354 struct lpfc_cqe *cqe;
357 /* sanity check on queue memory */
361 /* If the next CQE is not valid then we are done */
362 if (!bf_get_le32(lpfc_cqe_valid, q->qe[q->hba_index].cqe))
364 /* If the host has not yet processed the next entry then we are done */
365 idx = ((q->hba_index + 1) % q->entry_count);
366 if (idx == q->host_index)
369 cqe = q->qe[q->hba_index].cqe;
375 * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ
376 * @q: The Completion Queue that the host has completed processing for.
377 * @arm: Indicates whether the host wants to arms this CQ.
379 * This routine will mark all Completion queue entries on @q, from the last
380 * known completed entry to the last entry that was processed, as completed
381 * by clearing the valid bit for each completion queue entry. Then it will
382 * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
383 * The internal host index in the @q will be updated by this routine to indicate
384 * that the host has finished processing the entries. The @arm parameter
385 * indicates that the queue should be rearmed when ringing the doorbell.
387 * This function will return the number of CQEs that were released.
390 lpfc_sli4_cq_release(struct lpfc_queue *q, bool arm)
392 uint32_t released = 0;
393 struct lpfc_cqe *temp_qe;
394 struct lpfc_register doorbell;
396 /* sanity check on queue memory */
399 /* while there are valid entries */
400 while (q->hba_index != q->host_index) {
401 temp_qe = q->qe[q->host_index].cqe;
402 bf_set_le32(lpfc_cqe_valid, temp_qe, 0);
404 q->host_index = ((q->host_index + 1) % q->entry_count);
406 if (unlikely(released == 0 && !arm))
409 /* ring doorbell for number popped */
412 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
413 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
414 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION);
415 bf_set(lpfc_eqcq_doorbell_cqid_hi, &doorbell,
416 (q->queue_id >> LPFC_CQID_HI_FIELD_SHIFT));
417 bf_set(lpfc_eqcq_doorbell_cqid_lo, &doorbell, q->queue_id);
418 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
423 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
424 * @q: The Header Receive Queue to operate on.
425 * @wqe: The Receive Queue Entry to put on the Receive queue.
427 * This routine will copy the contents of @wqe to the next available entry on
428 * the @q. This function will then ring the Receive Queue Doorbell to signal the
429 * HBA to start processing the Receive Queue Entry. This function returns the
430 * index that the rqe was copied to if successful. If no entries are available
431 * on @q then this function will return -ENOMEM.
432 * The caller is expected to hold the hbalock when calling this routine.
435 lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
436 struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe)
438 struct lpfc_rqe *temp_hrqe;
439 struct lpfc_rqe *temp_drqe;
440 struct lpfc_register doorbell;
443 /* sanity check on queue memory */
444 if (unlikely(!hq) || unlikely(!dq))
446 put_index = hq->host_index;
447 temp_hrqe = hq->qe[hq->host_index].rqe;
448 temp_drqe = dq->qe[dq->host_index].rqe;
450 if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ)
452 if (hq->host_index != dq->host_index)
454 /* If the host has not yet processed the next entry then we are done */
455 if (((hq->host_index + 1) % hq->entry_count) == hq->hba_index)
457 lpfc_sli_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size);
458 lpfc_sli_pcimem_bcopy(drqe, temp_drqe, dq->entry_size);
460 /* Update the host index to point to the next slot */
461 hq->host_index = ((hq->host_index + 1) % hq->entry_count);
462 dq->host_index = ((dq->host_index + 1) % dq->entry_count);
464 /* Ring The Header Receive Queue Doorbell */
465 if (!(hq->host_index % hq->entry_repost)) {
467 if (hq->db_format == LPFC_DB_RING_FORMAT) {
468 bf_set(lpfc_rq_db_ring_fm_num_posted, &doorbell,
470 bf_set(lpfc_rq_db_ring_fm_id, &doorbell, hq->queue_id);
471 } else if (hq->db_format == LPFC_DB_LIST_FORMAT) {
472 bf_set(lpfc_rq_db_list_fm_num_posted, &doorbell,
474 bf_set(lpfc_rq_db_list_fm_index, &doorbell,
476 bf_set(lpfc_rq_db_list_fm_id, &doorbell, hq->queue_id);
480 writel(doorbell.word0, hq->db_regaddr);
486 * lpfc_sli4_rq_release - Updates internal hba index for RQ
487 * @q: The Header Receive Queue to operate on.
489 * This routine will update the HBA index of a queue to reflect consumption of
490 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
491 * consumed an entry the host calls this function to update the queue's
492 * internal pointers. This routine returns the number of entries that were
493 * consumed by the HBA.
496 lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq)
498 /* sanity check on queue memory */
499 if (unlikely(!hq) || unlikely(!dq))
502 if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ))
504 hq->hba_index = ((hq->hba_index + 1) % hq->entry_count);
505 dq->hba_index = ((dq->hba_index + 1) % dq->entry_count);
510 * lpfc_cmd_iocb - Get next command iocb entry in the ring
511 * @phba: Pointer to HBA context object.
512 * @pring: Pointer to driver SLI ring object.
514 * This function returns pointer to next command iocb entry
515 * in the command ring. The caller must hold hbalock to prevent
516 * other threads consume the next command iocb.
517 * SLI-2/SLI-3 provide different sized iocbs.
519 static inline IOCB_t *
520 lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
522 return (IOCB_t *) (((char *) pring->sli.sli3.cmdringaddr) +
523 pring->sli.sli3.cmdidx * phba->iocb_cmd_size);
527 * lpfc_resp_iocb - Get next response iocb entry in the ring
528 * @phba: Pointer to HBA context object.
529 * @pring: Pointer to driver SLI ring object.
531 * This function returns pointer to next response iocb entry
532 * in the response ring. The caller must hold hbalock to make sure
533 * that no other thread consume the next response iocb.
534 * SLI-2/SLI-3 provide different sized iocbs.
536 static inline IOCB_t *
537 lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
539 return (IOCB_t *) (((char *) pring->sli.sli3.rspringaddr) +
540 pring->sli.sli3.rspidx * phba->iocb_rsp_size);
544 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
545 * @phba: Pointer to HBA context object.
547 * This function is called with hbalock held. This function
548 * allocates a new driver iocb object from the iocb pool. If the
549 * allocation is successful, it returns pointer to the newly
550 * allocated iocb object else it returns NULL.
553 __lpfc_sli_get_iocbq(struct lpfc_hba *phba)
555 struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
556 struct lpfc_iocbq * iocbq = NULL;
558 list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
561 if (phba->iocb_cnt > phba->iocb_max)
562 phba->iocb_max = phba->iocb_cnt;
567 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
568 * @phba: Pointer to HBA context object.
569 * @xritag: XRI value.
571 * This function clears the sglq pointer from the array of acive
572 * sglq's. The xritag that is passed in is used to index into the
573 * array. Before the xritag can be used it needs to be adjusted
574 * by subtracting the xribase.
576 * Returns sglq ponter = success, NULL = Failure.
578 static struct lpfc_sglq *
579 __lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
581 struct lpfc_sglq *sglq;
583 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
584 phba->sli4_hba.lpfc_sglq_active_list[xritag] = NULL;
589 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
590 * @phba: Pointer to HBA context object.
591 * @xritag: XRI value.
593 * This function returns the sglq pointer from the array of acive
594 * sglq's. The xritag that is passed in is used to index into the
595 * array. Before the xritag can be used it needs to be adjusted
596 * by subtracting the xribase.
598 * Returns sglq ponter = success, NULL = Failure.
601 __lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
603 struct lpfc_sglq *sglq;
605 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
610 * lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
611 * @phba: Pointer to HBA context object.
612 * @xritag: xri used in this exchange.
613 * @rrq: The RRQ to be cleared.
617 lpfc_clr_rrq_active(struct lpfc_hba *phba,
619 struct lpfc_node_rrq *rrq)
621 struct lpfc_nodelist *ndlp = NULL;
623 if ((rrq->vport) && NLP_CHK_NODE_ACT(rrq->ndlp))
624 ndlp = lpfc_findnode_did(rrq->vport, rrq->nlp_DID);
626 /* The target DID could have been swapped (cable swap)
627 * we should use the ndlp from the findnode if it is
630 if ((!ndlp) && rrq->ndlp)
636 if (test_and_clear_bit(xritag, ndlp->active_rrqs.xri_bitmap)) {
639 rrq->rrq_stop_time = 0;
642 mempool_free(rrq, phba->rrq_pool);
646 * lpfc_handle_rrq_active - Checks if RRQ has waithed RATOV.
647 * @phba: Pointer to HBA context object.
649 * This function is called with hbalock held. This function
650 * Checks if stop_time (ratov from setting rrq active) has
651 * been reached, if it has and the send_rrq flag is set then
652 * it will call lpfc_send_rrq. If the send_rrq flag is not set
653 * then it will just call the routine to clear the rrq and
654 * free the rrq resource.
655 * The timer is set to the next rrq that is going to expire before
656 * leaving the routine.
660 lpfc_handle_rrq_active(struct lpfc_hba *phba)
662 struct lpfc_node_rrq *rrq;
663 struct lpfc_node_rrq *nextrrq;
664 unsigned long next_time;
665 unsigned long iflags;
668 spin_lock_irqsave(&phba->hbalock, iflags);
669 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
670 next_time = jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
671 list_for_each_entry_safe(rrq, nextrrq,
672 &phba->active_rrq_list, list) {
673 if (time_after(jiffies, rrq->rrq_stop_time))
674 list_move(&rrq->list, &send_rrq);
675 else if (time_before(rrq->rrq_stop_time, next_time))
676 next_time = rrq->rrq_stop_time;
678 spin_unlock_irqrestore(&phba->hbalock, iflags);
679 if (!list_empty(&phba->active_rrq_list))
680 mod_timer(&phba->rrq_tmr, next_time);
681 list_for_each_entry_safe(rrq, nextrrq, &send_rrq, list) {
682 list_del(&rrq->list);
684 /* this call will free the rrq */
685 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
686 else if (lpfc_send_rrq(phba, rrq)) {
687 /* if we send the rrq then the completion handler
688 * will clear the bit in the xribitmap.
690 lpfc_clr_rrq_active(phba, rrq->xritag,
697 * lpfc_get_active_rrq - Get the active RRQ for this exchange.
698 * @vport: Pointer to vport context object.
699 * @xri: The xri used in the exchange.
700 * @did: The targets DID for this exchange.
702 * returns NULL = rrq not found in the phba->active_rrq_list.
703 * rrq = rrq for this xri and target.
705 struct lpfc_node_rrq *
706 lpfc_get_active_rrq(struct lpfc_vport *vport, uint16_t xri, uint32_t did)
708 struct lpfc_hba *phba = vport->phba;
709 struct lpfc_node_rrq *rrq;
710 struct lpfc_node_rrq *nextrrq;
711 unsigned long iflags;
713 if (phba->sli_rev != LPFC_SLI_REV4)
715 spin_lock_irqsave(&phba->hbalock, iflags);
716 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) {
717 if (rrq->vport == vport && rrq->xritag == xri &&
718 rrq->nlp_DID == did){
719 list_del(&rrq->list);
720 spin_unlock_irqrestore(&phba->hbalock, iflags);
724 spin_unlock_irqrestore(&phba->hbalock, iflags);
729 * lpfc_cleanup_vports_rrqs - Remove and clear the active RRQ for this vport.
730 * @vport: Pointer to vport context object.
731 * @ndlp: Pointer to the lpfc_node_list structure.
732 * If ndlp is NULL Remove all active RRQs for this vport from the
733 * phba->active_rrq_list and clear the rrq.
734 * If ndlp is not NULL then only remove rrqs for this vport & this ndlp.
737 lpfc_cleanup_vports_rrqs(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
740 struct lpfc_hba *phba = vport->phba;
741 struct lpfc_node_rrq *rrq;
742 struct lpfc_node_rrq *nextrrq;
743 unsigned long iflags;
746 if (phba->sli_rev != LPFC_SLI_REV4)
749 lpfc_sli4_vport_delete_els_xri_aborted(vport);
750 lpfc_sli4_vport_delete_fcp_xri_aborted(vport);
752 spin_lock_irqsave(&phba->hbalock, iflags);
753 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list)
754 if ((rrq->vport == vport) && (!ndlp || rrq->ndlp == ndlp))
755 list_move(&rrq->list, &rrq_list);
756 spin_unlock_irqrestore(&phba->hbalock, iflags);
758 list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
759 list_del(&rrq->list);
760 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
765 * lpfc_cleanup_wt_rrqs - Remove all rrq's from the active list.
766 * @phba: Pointer to HBA context object.
768 * Remove all rrqs from the phba->active_rrq_list and free them by
769 * calling __lpfc_clr_active_rrq
773 lpfc_cleanup_wt_rrqs(struct lpfc_hba *phba)
775 struct lpfc_node_rrq *rrq;
776 struct lpfc_node_rrq *nextrrq;
777 unsigned long next_time;
778 unsigned long iflags;
781 if (phba->sli_rev != LPFC_SLI_REV4)
783 spin_lock_irqsave(&phba->hbalock, iflags);
784 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
785 next_time = jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov * 2));
786 list_splice_init(&phba->active_rrq_list, &rrq_list);
787 spin_unlock_irqrestore(&phba->hbalock, iflags);
789 list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
790 list_del(&rrq->list);
791 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
793 if (!list_empty(&phba->active_rrq_list))
794 mod_timer(&phba->rrq_tmr, next_time);
799 * lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
800 * @phba: Pointer to HBA context object.
801 * @ndlp: Targets nodelist pointer for this exchange.
802 * @xritag the xri in the bitmap to test.
804 * This function is called with hbalock held. This function
805 * returns 0 = rrq not active for this xri
806 * 1 = rrq is valid for this xri.
809 lpfc_test_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
814 if (test_bit(xritag, ndlp->active_rrqs.xri_bitmap))
821 * lpfc_set_rrq_active - set RRQ active bit in xri_bitmap.
822 * @phba: Pointer to HBA context object.
823 * @ndlp: nodelist pointer for this target.
824 * @xritag: xri used in this exchange.
825 * @rxid: Remote Exchange ID.
826 * @send_rrq: Flag used to determine if we should send rrq els cmd.
828 * This function takes the hbalock.
829 * The active bit is always set in the active rrq xri_bitmap even
830 * if there is no slot avaiable for the other rrq information.
832 * returns 0 rrq actived for this xri
833 * < 0 No memory or invalid ndlp.
836 lpfc_set_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
837 uint16_t xritag, uint16_t rxid, uint16_t send_rrq)
839 unsigned long iflags;
840 struct lpfc_node_rrq *rrq;
846 if (!phba->cfg_enable_rrq)
849 spin_lock_irqsave(&phba->hbalock, iflags);
850 if (phba->pport->load_flag & FC_UNLOADING) {
851 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
856 * set the active bit even if there is no mem available.
858 if (NLP_CHK_FREE_REQ(ndlp))
861 if (ndlp->vport && (ndlp->vport->load_flag & FC_UNLOADING))
864 if (test_and_set_bit(xritag, ndlp->active_rrqs.xri_bitmap))
867 spin_unlock_irqrestore(&phba->hbalock, iflags);
868 rrq = mempool_alloc(phba->rrq_pool, GFP_KERNEL);
870 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
871 "3155 Unable to allocate RRQ xri:0x%x rxid:0x%x"
872 " DID:0x%x Send:%d\n",
873 xritag, rxid, ndlp->nlp_DID, send_rrq);
876 if (phba->cfg_enable_rrq == 1)
877 rrq->send_rrq = send_rrq;
880 rrq->xritag = xritag;
881 rrq->rrq_stop_time = jiffies +
882 msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
884 rrq->nlp_DID = ndlp->nlp_DID;
885 rrq->vport = ndlp->vport;
887 spin_lock_irqsave(&phba->hbalock, iflags);
888 empty = list_empty(&phba->active_rrq_list);
889 list_add_tail(&rrq->list, &phba->active_rrq_list);
890 phba->hba_flag |= HBA_RRQ_ACTIVE;
892 lpfc_worker_wake_up(phba);
893 spin_unlock_irqrestore(&phba->hbalock, iflags);
896 spin_unlock_irqrestore(&phba->hbalock, iflags);
897 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
898 "2921 Can't set rrq active xri:0x%x rxid:0x%x"
899 " DID:0x%x Send:%d\n",
900 xritag, rxid, ndlp->nlp_DID, send_rrq);
905 * __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool
906 * @phba: Pointer to HBA context object.
907 * @piocb: Pointer to the iocbq.
909 * This function is called with hbalock held. This function
910 * gets a new driver sglq object from the sglq list. If the
911 * list is not empty then it is successful, it returns pointer to the newly
912 * allocated sglq object else it returns NULL.
914 static struct lpfc_sglq *
915 __lpfc_sli_get_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
917 struct list_head *lpfc_sgl_list = &phba->sli4_hba.lpfc_sgl_list;
918 struct lpfc_sglq *sglq = NULL;
919 struct lpfc_sglq *start_sglq = NULL;
920 struct lpfc_scsi_buf *lpfc_cmd;
921 struct lpfc_nodelist *ndlp;
924 if (piocbq->iocb_flag & LPFC_IO_FCP) {
925 lpfc_cmd = (struct lpfc_scsi_buf *) piocbq->context1;
926 ndlp = lpfc_cmd->rdata->pnode;
927 } else if ((piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) &&
928 !(piocbq->iocb_flag & LPFC_IO_LIBDFC))
929 ndlp = piocbq->context_un.ndlp;
930 else if (piocbq->iocb_flag & LPFC_IO_LIBDFC)
931 ndlp = piocbq->context_un.ndlp;
933 ndlp = piocbq->context1;
935 list_remove_head(lpfc_sgl_list, sglq, struct lpfc_sglq, list);
940 if (lpfc_test_rrq_active(phba, ndlp, sglq->sli4_lxritag)) {
941 /* This xri has an rrq outstanding for this DID.
942 * put it back in the list and get another xri.
944 list_add_tail(&sglq->list, lpfc_sgl_list);
946 list_remove_head(lpfc_sgl_list, sglq,
947 struct lpfc_sglq, list);
948 if (sglq == start_sglq) {
956 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
957 sglq->state = SGL_ALLOCATED;
963 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
964 * @phba: Pointer to HBA context object.
966 * This function is called with no lock held. This function
967 * allocates a new driver iocb object from the iocb pool. If the
968 * allocation is successful, it returns pointer to the newly
969 * allocated iocb object else it returns NULL.
972 lpfc_sli_get_iocbq(struct lpfc_hba *phba)
974 struct lpfc_iocbq * iocbq = NULL;
975 unsigned long iflags;
977 spin_lock_irqsave(&phba->hbalock, iflags);
978 iocbq = __lpfc_sli_get_iocbq(phba);
979 spin_unlock_irqrestore(&phba->hbalock, iflags);
984 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
985 * @phba: Pointer to HBA context object.
986 * @iocbq: Pointer to driver iocb object.
988 * This function is called with hbalock held to release driver
989 * iocb object to the iocb pool. The iotag in the iocb object
990 * does not change for each use of the iocb object. This function
991 * clears all other fields of the iocb object when it is freed.
992 * The sqlq structure that holds the xritag and phys and virtual
993 * mappings for the scatter gather list is retrieved from the
994 * active array of sglq. The get of the sglq pointer also clears
995 * the entry in the array. If the status of the IO indiactes that
996 * this IO was aborted then the sglq entry it put on the
997 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
998 * IO has good status or fails for any other reason then the sglq
999 * entry is added to the free list (lpfc_sgl_list).
1002 __lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1004 struct lpfc_sglq *sglq;
1005 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1006 unsigned long iflag = 0;
1007 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
1009 if (iocbq->sli4_xritag == NO_XRI)
1012 sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_lxritag);
1015 ** This should have been removed from the txcmplq before calling
1016 ** iocbq_release. The normal completion
1017 ** path should have already done the list_del_init.
1019 if (unlikely(!list_empty(&iocbq->list))) {
1020 if (iocbq->iocb_flag & LPFC_IO_ON_TXCMPLQ)
1021 iocbq->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
1022 list_del_init(&iocbq->list);
1027 if ((iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) &&
1028 (sglq->state != SGL_XRI_ABORTED)) {
1029 spin_lock_irqsave(&phba->sli4_hba.abts_sgl_list_lock,
1031 list_add(&sglq->list,
1032 &phba->sli4_hba.lpfc_abts_els_sgl_list);
1033 spin_unlock_irqrestore(
1034 &phba->sli4_hba.abts_sgl_list_lock, iflag);
1036 sglq->state = SGL_FREED;
1038 list_add_tail(&sglq->list,
1039 &phba->sli4_hba.lpfc_sgl_list);
1041 /* Check if TXQ queue needs to be serviced */
1042 if (!list_empty(&pring->txq))
1043 lpfc_worker_wake_up(phba);
1049 * Clean all volatile data fields, preserve iotag and node struct.
1051 memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1052 iocbq->sli4_lxritag = NO_XRI;
1053 iocbq->sli4_xritag = NO_XRI;
1054 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1059 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
1060 * @phba: Pointer to HBA context object.
1061 * @iocbq: Pointer to driver iocb object.
1063 * This function is called with hbalock held to release driver
1064 * iocb object to the iocb pool. The iotag in the iocb object
1065 * does not change for each use of the iocb object. This function
1066 * clears all other fields of the iocb object when it is freed.
1069 __lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1071 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1074 ** This should have been removed from the txcmplq before calling
1075 ** iocbq_release. The normal completion
1076 ** path should have already done the list_del_init.
1078 if (unlikely(!list_empty(&iocbq->list)))
1079 list_del_init(&iocbq->list);
1082 * Clean all volatile data fields, preserve iotag and node struct.
1084 memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1085 iocbq->sli4_xritag = NO_XRI;
1086 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1090 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
1091 * @phba: Pointer to HBA context object.
1092 * @iocbq: Pointer to driver iocb object.
1094 * This function is called with hbalock held to release driver
1095 * iocb object to the iocb pool. The iotag in the iocb object
1096 * does not change for each use of the iocb object. This function
1097 * clears all other fields of the iocb object when it is freed.
1100 __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1102 phba->__lpfc_sli_release_iocbq(phba, iocbq);
1107 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
1108 * @phba: Pointer to HBA context object.
1109 * @iocbq: Pointer to driver iocb object.
1111 * This function is called with no lock held to release the iocb to
1115 lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1117 unsigned long iflags;
1120 * Clean all volatile data fields, preserve iotag and node struct.
1122 spin_lock_irqsave(&phba->hbalock, iflags);
1123 __lpfc_sli_release_iocbq(phba, iocbq);
1124 spin_unlock_irqrestore(&phba->hbalock, iflags);
1128 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
1129 * @phba: Pointer to HBA context object.
1130 * @iocblist: List of IOCBs.
1131 * @ulpstatus: ULP status in IOCB command field.
1132 * @ulpWord4: ULP word-4 in IOCB command field.
1134 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
1135 * on the list by invoking the complete callback function associated with the
1136 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
1140 lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
1141 uint32_t ulpstatus, uint32_t ulpWord4)
1143 struct lpfc_iocbq *piocb;
1145 while (!list_empty(iocblist)) {
1146 list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
1147 if (!piocb->iocb_cmpl)
1148 lpfc_sli_release_iocbq(phba, piocb);
1150 piocb->iocb.ulpStatus = ulpstatus;
1151 piocb->iocb.un.ulpWord[4] = ulpWord4;
1152 (piocb->iocb_cmpl) (phba, piocb, piocb);
1159 * lpfc_sli_iocb_cmd_type - Get the iocb type
1160 * @iocb_cmnd: iocb command code.
1162 * This function is called by ring event handler function to get the iocb type.
1163 * This function translates the iocb command to an iocb command type used to
1164 * decide the final disposition of each completed IOCB.
1165 * The function returns
1166 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
1167 * LPFC_SOL_IOCB if it is a solicited iocb completion
1168 * LPFC_ABORT_IOCB if it is an abort iocb
1169 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
1171 * The caller is not required to hold any lock.
1173 static lpfc_iocb_type
1174 lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
1176 lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
1178 if (iocb_cmnd > CMD_MAX_IOCB_CMD)
1181 switch (iocb_cmnd) {
1182 case CMD_XMIT_SEQUENCE_CR:
1183 case CMD_XMIT_SEQUENCE_CX:
1184 case CMD_XMIT_BCAST_CN:
1185 case CMD_XMIT_BCAST_CX:
1186 case CMD_ELS_REQUEST_CR:
1187 case CMD_ELS_REQUEST_CX:
1188 case CMD_CREATE_XRI_CR:
1189 case CMD_CREATE_XRI_CX:
1190 case CMD_GET_RPI_CN:
1191 case CMD_XMIT_ELS_RSP_CX:
1192 case CMD_GET_RPI_CR:
1193 case CMD_FCP_IWRITE_CR:
1194 case CMD_FCP_IWRITE_CX:
1195 case CMD_FCP_IREAD_CR:
1196 case CMD_FCP_IREAD_CX:
1197 case CMD_FCP_ICMND_CR:
1198 case CMD_FCP_ICMND_CX:
1199 case CMD_FCP_TSEND_CX:
1200 case CMD_FCP_TRSP_CX:
1201 case CMD_FCP_TRECEIVE_CX:
1202 case CMD_FCP_AUTO_TRSP_CX:
1203 case CMD_ADAPTER_MSG:
1204 case CMD_ADAPTER_DUMP:
1205 case CMD_XMIT_SEQUENCE64_CR:
1206 case CMD_XMIT_SEQUENCE64_CX:
1207 case CMD_XMIT_BCAST64_CN:
1208 case CMD_XMIT_BCAST64_CX:
1209 case CMD_ELS_REQUEST64_CR:
1210 case CMD_ELS_REQUEST64_CX:
1211 case CMD_FCP_IWRITE64_CR:
1212 case CMD_FCP_IWRITE64_CX:
1213 case CMD_FCP_IREAD64_CR:
1214 case CMD_FCP_IREAD64_CX:
1215 case CMD_FCP_ICMND64_CR:
1216 case CMD_FCP_ICMND64_CX:
1217 case CMD_FCP_TSEND64_CX:
1218 case CMD_FCP_TRSP64_CX:
1219 case CMD_FCP_TRECEIVE64_CX:
1220 case CMD_GEN_REQUEST64_CR:
1221 case CMD_GEN_REQUEST64_CX:
1222 case CMD_XMIT_ELS_RSP64_CX:
1223 case DSSCMD_IWRITE64_CR:
1224 case DSSCMD_IWRITE64_CX:
1225 case DSSCMD_IREAD64_CR:
1226 case DSSCMD_IREAD64_CX:
1227 type = LPFC_SOL_IOCB;
1229 case CMD_ABORT_XRI_CN:
1230 case CMD_ABORT_XRI_CX:
1231 case CMD_CLOSE_XRI_CN:
1232 case CMD_CLOSE_XRI_CX:
1233 case CMD_XRI_ABORTED_CX:
1234 case CMD_ABORT_MXRI64_CN:
1235 case CMD_XMIT_BLS_RSP64_CX:
1236 type = LPFC_ABORT_IOCB;
1238 case CMD_RCV_SEQUENCE_CX:
1239 case CMD_RCV_ELS_REQ_CX:
1240 case CMD_RCV_SEQUENCE64_CX:
1241 case CMD_RCV_ELS_REQ64_CX:
1242 case CMD_ASYNC_STATUS:
1243 case CMD_IOCB_RCV_SEQ64_CX:
1244 case CMD_IOCB_RCV_ELS64_CX:
1245 case CMD_IOCB_RCV_CONT64_CX:
1246 case CMD_IOCB_RET_XRI64_CX:
1247 type = LPFC_UNSOL_IOCB;
1249 case CMD_IOCB_XMIT_MSEQ64_CR:
1250 case CMD_IOCB_XMIT_MSEQ64_CX:
1251 case CMD_IOCB_RCV_SEQ_LIST64_CX:
1252 case CMD_IOCB_RCV_ELS_LIST64_CX:
1253 case CMD_IOCB_CLOSE_EXTENDED_CN:
1254 case CMD_IOCB_ABORT_EXTENDED_CN:
1255 case CMD_IOCB_RET_HBQE64_CN:
1256 case CMD_IOCB_FCP_IBIDIR64_CR:
1257 case CMD_IOCB_FCP_IBIDIR64_CX:
1258 case CMD_IOCB_FCP_ITASKMGT64_CX:
1259 case CMD_IOCB_LOGENTRY_CN:
1260 case CMD_IOCB_LOGENTRY_ASYNC_CN:
1261 printk("%s - Unhandled SLI-3 Command x%x\n",
1262 __func__, iocb_cmnd);
1263 type = LPFC_UNKNOWN_IOCB;
1266 type = LPFC_UNKNOWN_IOCB;
1274 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
1275 * @phba: Pointer to HBA context object.
1277 * This function is called from SLI initialization code
1278 * to configure every ring of the HBA's SLI interface. The
1279 * caller is not required to hold any lock. This function issues
1280 * a config_ring mailbox command for each ring.
1281 * This function returns zero if successful else returns a negative
1285 lpfc_sli_ring_map(struct lpfc_hba *phba)
1287 struct lpfc_sli *psli = &phba->sli;
1292 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1296 phba->link_state = LPFC_INIT_MBX_CMDS;
1297 for (i = 0; i < psli->num_rings; i++) {
1298 lpfc_config_ring(phba, i, pmb);
1299 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
1300 if (rc != MBX_SUCCESS) {
1301 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1302 "0446 Adapter failed to init (%d), "
1303 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
1305 rc, pmbox->mbxCommand,
1306 pmbox->mbxStatus, i);
1307 phba->link_state = LPFC_HBA_ERROR;
1312 mempool_free(pmb, phba->mbox_mem_pool);
1317 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
1318 * @phba: Pointer to HBA context object.
1319 * @pring: Pointer to driver SLI ring object.
1320 * @piocb: Pointer to the driver iocb object.
1322 * This function is called with hbalock held. The function adds the
1323 * new iocb to txcmplq of the given ring. This function always returns
1324 * 0. If this function is called for ELS ring, this function checks if
1325 * there is a vport associated with the ELS command. This function also
1326 * starts els_tmofunc timer if this is an ELS command.
1329 lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1330 struct lpfc_iocbq *piocb)
1332 list_add_tail(&piocb->list, &pring->txcmplq);
1333 piocb->iocb_flag |= LPFC_IO_ON_TXCMPLQ;
1335 if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
1336 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
1337 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
1341 mod_timer(&piocb->vport->els_tmofunc,
1343 msecs_to_jiffies(1000 * (phba->fc_ratov << 1)));
1351 * lpfc_sli_ringtx_get - Get first element of the txq
1352 * @phba: Pointer to HBA context object.
1353 * @pring: Pointer to driver SLI ring object.
1355 * This function is called with hbalock held to get next
1356 * iocb in txq of the given ring. If there is any iocb in
1357 * the txq, the function returns first iocb in the list after
1358 * removing the iocb from the list, else it returns NULL.
1361 lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1363 struct lpfc_iocbq *cmd_iocb;
1365 list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
1370 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
1371 * @phba: Pointer to HBA context object.
1372 * @pring: Pointer to driver SLI ring object.
1374 * This function is called with hbalock held and the caller must post the
1375 * iocb without releasing the lock. If the caller releases the lock,
1376 * iocb slot returned by the function is not guaranteed to be available.
1377 * The function returns pointer to the next available iocb slot if there
1378 * is available slot in the ring, else it returns NULL.
1379 * If the get index of the ring is ahead of the put index, the function
1380 * will post an error attention event to the worker thread to take the
1381 * HBA to offline state.
1384 lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1386 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
1387 uint32_t max_cmd_idx = pring->sli.sli3.numCiocb;
1388 if ((pring->sli.sli3.next_cmdidx == pring->sli.sli3.cmdidx) &&
1389 (++pring->sli.sli3.next_cmdidx >= max_cmd_idx))
1390 pring->sli.sli3.next_cmdidx = 0;
1392 if (unlikely(pring->sli.sli3.local_getidx ==
1393 pring->sli.sli3.next_cmdidx)) {
1395 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
1397 if (unlikely(pring->sli.sli3.local_getidx >= max_cmd_idx)) {
1398 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1399 "0315 Ring %d issue: portCmdGet %d "
1400 "is bigger than cmd ring %d\n",
1402 pring->sli.sli3.local_getidx,
1405 phba->link_state = LPFC_HBA_ERROR;
1407 * All error attention handlers are posted to
1410 phba->work_ha |= HA_ERATT;
1411 phba->work_hs = HS_FFER3;
1413 lpfc_worker_wake_up(phba);
1418 if (pring->sli.sli3.local_getidx == pring->sli.sli3.next_cmdidx)
1422 return lpfc_cmd_iocb(phba, pring);
1426 * lpfc_sli_next_iotag - Get an iotag for the iocb
1427 * @phba: Pointer to HBA context object.
1428 * @iocbq: Pointer to driver iocb object.
1430 * This function gets an iotag for the iocb. If there is no unused iotag and
1431 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
1432 * array and assigns a new iotag.
1433 * The function returns the allocated iotag if successful, else returns zero.
1434 * Zero is not a valid iotag.
1435 * The caller is not required to hold any lock.
1438 lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1440 struct lpfc_iocbq **new_arr;
1441 struct lpfc_iocbq **old_arr;
1443 struct lpfc_sli *psli = &phba->sli;
1446 spin_lock_irq(&phba->hbalock);
1447 iotag = psli->last_iotag;
1448 if(++iotag < psli->iocbq_lookup_len) {
1449 psli->last_iotag = iotag;
1450 psli->iocbq_lookup[iotag] = iocbq;
1451 spin_unlock_irq(&phba->hbalock);
1452 iocbq->iotag = iotag;
1454 } else if (psli->iocbq_lookup_len < (0xffff
1455 - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
1456 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
1457 spin_unlock_irq(&phba->hbalock);
1458 new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *),
1461 spin_lock_irq(&phba->hbalock);
1462 old_arr = psli->iocbq_lookup;
1463 if (new_len <= psli->iocbq_lookup_len) {
1464 /* highly unprobable case */
1466 iotag = psli->last_iotag;
1467 if(++iotag < psli->iocbq_lookup_len) {
1468 psli->last_iotag = iotag;
1469 psli->iocbq_lookup[iotag] = iocbq;
1470 spin_unlock_irq(&phba->hbalock);
1471 iocbq->iotag = iotag;
1474 spin_unlock_irq(&phba->hbalock);
1477 if (psli->iocbq_lookup)
1478 memcpy(new_arr, old_arr,
1479 ((psli->last_iotag + 1) *
1480 sizeof (struct lpfc_iocbq *)));
1481 psli->iocbq_lookup = new_arr;
1482 psli->iocbq_lookup_len = new_len;
1483 psli->last_iotag = iotag;
1484 psli->iocbq_lookup[iotag] = iocbq;
1485 spin_unlock_irq(&phba->hbalock);
1486 iocbq->iotag = iotag;
1491 spin_unlock_irq(&phba->hbalock);
1493 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
1494 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1501 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
1502 * @phba: Pointer to HBA context object.
1503 * @pring: Pointer to driver SLI ring object.
1504 * @iocb: Pointer to iocb slot in the ring.
1505 * @nextiocb: Pointer to driver iocb object which need to be
1506 * posted to firmware.
1508 * This function is called with hbalock held to post a new iocb to
1509 * the firmware. This function copies the new iocb to ring iocb slot and
1510 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1511 * a completion call back for this iocb else the function will free the
1515 lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1516 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
1521 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
1524 if (pring->ringno == LPFC_ELS_RING) {
1525 lpfc_debugfs_slow_ring_trc(phba,
1526 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1527 *(((uint32_t *) &nextiocb->iocb) + 4),
1528 *(((uint32_t *) &nextiocb->iocb) + 6),
1529 *(((uint32_t *) &nextiocb->iocb) + 7));
1533 * Issue iocb command to adapter
1535 lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
1537 pring->stats.iocb_cmd++;
1540 * If there is no completion routine to call, we can release the
1541 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1542 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1544 if (nextiocb->iocb_cmpl)
1545 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
1547 __lpfc_sli_release_iocbq(phba, nextiocb);
1550 * Let the HBA know what IOCB slot will be the next one the
1551 * driver will put a command into.
1553 pring->sli.sli3.cmdidx = pring->sli.sli3.next_cmdidx;
1554 writel(pring->sli.sli3.cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
1558 * lpfc_sli_update_full_ring - Update the chip attention register
1559 * @phba: Pointer to HBA context object.
1560 * @pring: Pointer to driver SLI ring object.
1562 * The caller is not required to hold any lock for calling this function.
1563 * This function updates the chip attention bits for the ring to inform firmware
1564 * that there are pending work to be done for this ring and requests an
1565 * interrupt when there is space available in the ring. This function is
1566 * called when the driver is unable to post more iocbs to the ring due
1567 * to unavailability of space in the ring.
1570 lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1572 int ringno = pring->ringno;
1574 pring->flag |= LPFC_CALL_RING_AVAILABLE;
1579 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1580 * The HBA will tell us when an IOCB entry is available.
1582 writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
1583 readl(phba->CAregaddr); /* flush */
1585 pring->stats.iocb_cmd_full++;
1589 * lpfc_sli_update_ring - Update chip attention register
1590 * @phba: Pointer to HBA context object.
1591 * @pring: Pointer to driver SLI ring object.
1593 * This function updates the chip attention register bit for the
1594 * given ring to inform HBA that there is more work to be done
1595 * in this ring. The caller is not required to hold any lock.
1598 lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1600 int ringno = pring->ringno;
1603 * Tell the HBA that there is work to do in this ring.
1605 if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
1607 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
1608 readl(phba->CAregaddr); /* flush */
1613 * lpfc_sli_resume_iocb - Process iocbs in the txq
1614 * @phba: Pointer to HBA context object.
1615 * @pring: Pointer to driver SLI ring object.
1617 * This function is called with hbalock held to post pending iocbs
1618 * in the txq to the firmware. This function is called when driver
1619 * detects space available in the ring.
1622 lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1625 struct lpfc_iocbq *nextiocb;
1629 * (a) there is anything on the txq to send
1631 * (c) link attention events can be processed (fcp ring only)
1632 * (d) IOCB processing is not blocked by the outstanding mbox command.
1635 if (lpfc_is_link_up(phba) &&
1636 (!list_empty(&pring->txq)) &&
1637 (pring->ringno != phba->sli.fcp_ring ||
1638 phba->sli.sli_flag & LPFC_PROCESS_LA)) {
1640 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
1641 (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
1642 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
1645 lpfc_sli_update_ring(phba, pring);
1647 lpfc_sli_update_full_ring(phba, pring);
1654 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
1655 * @phba: Pointer to HBA context object.
1656 * @hbqno: HBQ number.
1658 * This function is called with hbalock held to get the next
1659 * available slot for the given HBQ. If there is free slot
1660 * available for the HBQ it will return pointer to the next available
1661 * HBQ entry else it will return NULL.
1663 static struct lpfc_hbq_entry *
1664 lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
1666 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1668 if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
1669 ++hbqp->next_hbqPutIdx >= hbqp->entry_count)
1670 hbqp->next_hbqPutIdx = 0;
1672 if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
1673 uint32_t raw_index = phba->hbq_get[hbqno];
1674 uint32_t getidx = le32_to_cpu(raw_index);
1676 hbqp->local_hbqGetIdx = getidx;
1678 if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
1679 lpfc_printf_log(phba, KERN_ERR,
1680 LOG_SLI | LOG_VPORT,
1681 "1802 HBQ %d: local_hbqGetIdx "
1682 "%u is > than hbqp->entry_count %u\n",
1683 hbqno, hbqp->local_hbqGetIdx,
1686 phba->link_state = LPFC_HBA_ERROR;
1690 if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
1694 return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
1699 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
1700 * @phba: Pointer to HBA context object.
1702 * This function is called with no lock held to free all the
1703 * hbq buffers while uninitializing the SLI interface. It also
1704 * frees the HBQ buffers returned by the firmware but not yet
1705 * processed by the upper layers.
1708 lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
1710 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
1711 struct hbq_dmabuf *hbq_buf;
1712 unsigned long flags;
1716 hbq_count = lpfc_sli_hbq_count();
1717 /* Return all memory used by all HBQs */
1718 spin_lock_irqsave(&phba->hbalock, flags);
1719 for (i = 0; i < hbq_count; ++i) {
1720 list_for_each_entry_safe(dmabuf, next_dmabuf,
1721 &phba->hbqs[i].hbq_buffer_list, list) {
1722 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1723 list_del(&hbq_buf->dbuf.list);
1724 (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
1726 phba->hbqs[i].buffer_count = 0;
1728 /* Return all HBQ buffer that are in-fly */
1729 list_for_each_entry_safe(dmabuf, next_dmabuf, &phba->rb_pend_list,
1731 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1732 list_del(&hbq_buf->dbuf.list);
1733 if (hbq_buf->tag == -1) {
1734 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1737 hbqno = hbq_buf->tag >> 16;
1738 if (hbqno >= LPFC_MAX_HBQS)
1739 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1742 (phba->hbqs[hbqno].hbq_free_buffer)(phba,
1747 /* Mark the HBQs not in use */
1748 phba->hbq_in_use = 0;
1749 spin_unlock_irqrestore(&phba->hbalock, flags);
1753 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
1754 * @phba: Pointer to HBA context object.
1755 * @hbqno: HBQ number.
1756 * @hbq_buf: Pointer to HBQ buffer.
1758 * This function is called with the hbalock held to post a
1759 * hbq buffer to the firmware. If the function finds an empty
1760 * slot in the HBQ, it will post the buffer. The function will return
1761 * pointer to the hbq entry if it successfully post the buffer
1762 * else it will return NULL.
1765 lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
1766 struct hbq_dmabuf *hbq_buf)
1768 return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
1772 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
1773 * @phba: Pointer to HBA context object.
1774 * @hbqno: HBQ number.
1775 * @hbq_buf: Pointer to HBQ buffer.
1777 * This function is called with the hbalock held to post a hbq buffer to the
1778 * firmware. If the function finds an empty slot in the HBQ, it will post the
1779 * buffer and place it on the hbq_buffer_list. The function will return zero if
1780 * it successfully post the buffer else it will return an error.
1783 lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
1784 struct hbq_dmabuf *hbq_buf)
1786 struct lpfc_hbq_entry *hbqe;
1787 dma_addr_t physaddr = hbq_buf->dbuf.phys;
1789 /* Get next HBQ entry slot to use */
1790 hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
1792 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1794 hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
1795 hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
1796 hbqe->bde.tus.f.bdeSize = hbq_buf->size;
1797 hbqe->bde.tus.f.bdeFlags = 0;
1798 hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
1799 hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
1801 hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
1802 writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
1804 readl(phba->hbq_put + hbqno);
1805 list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
1812 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
1813 * @phba: Pointer to HBA context object.
1814 * @hbqno: HBQ number.
1815 * @hbq_buf: Pointer to HBQ buffer.
1817 * This function is called with the hbalock held to post an RQE to the SLI4
1818 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
1819 * the hbq_buffer_list and return zero, otherwise it will return an error.
1822 lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
1823 struct hbq_dmabuf *hbq_buf)
1826 struct lpfc_rqe hrqe;
1827 struct lpfc_rqe drqe;
1829 hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
1830 hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
1831 drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
1832 drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
1833 rc = lpfc_sli4_rq_put(phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
1838 list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
1842 /* HBQ for ELS and CT traffic. */
1843 static struct lpfc_hbq_init lpfc_els_hbq = {
1848 .ring_mask = (1 << LPFC_ELS_RING),
1854 /* HBQ for the extra ring if needed */
1855 static struct lpfc_hbq_init lpfc_extra_hbq = {
1860 .ring_mask = (1 << LPFC_EXTRA_RING),
1867 struct lpfc_hbq_init *lpfc_hbq_defs[] = {
1873 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
1874 * @phba: Pointer to HBA context object.
1875 * @hbqno: HBQ number.
1876 * @count: Number of HBQ buffers to be posted.
1878 * This function is called with no lock held to post more hbq buffers to the
1879 * given HBQ. The function returns the number of HBQ buffers successfully
1883 lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
1885 uint32_t i, posted = 0;
1886 unsigned long flags;
1887 struct hbq_dmabuf *hbq_buffer;
1888 LIST_HEAD(hbq_buf_list);
1889 if (!phba->hbqs[hbqno].hbq_alloc_buffer)
1892 if ((phba->hbqs[hbqno].buffer_count + count) >
1893 lpfc_hbq_defs[hbqno]->entry_count)
1894 count = lpfc_hbq_defs[hbqno]->entry_count -
1895 phba->hbqs[hbqno].buffer_count;
1898 /* Allocate HBQ entries */
1899 for (i = 0; i < count; i++) {
1900 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
1903 list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
1905 /* Check whether HBQ is still in use */
1906 spin_lock_irqsave(&phba->hbalock, flags);
1907 if (!phba->hbq_in_use)
1909 while (!list_empty(&hbq_buf_list)) {
1910 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1912 hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
1914 if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
1915 phba->hbqs[hbqno].buffer_count++;
1918 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1920 spin_unlock_irqrestore(&phba->hbalock, flags);
1923 spin_unlock_irqrestore(&phba->hbalock, flags);
1924 while (!list_empty(&hbq_buf_list)) {
1925 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1927 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1933 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
1934 * @phba: Pointer to HBA context object.
1937 * This function posts more buffers to the HBQ. This function
1938 * is called with no lock held. The function returns the number of HBQ entries
1939 * successfully allocated.
1942 lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
1944 if (phba->sli_rev == LPFC_SLI_REV4)
1947 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1948 lpfc_hbq_defs[qno]->add_count);
1952 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
1953 * @phba: Pointer to HBA context object.
1954 * @qno: HBQ queue number.
1956 * This function is called from SLI initialization code path with
1957 * no lock held to post initial HBQ buffers to firmware. The
1958 * function returns the number of HBQ entries successfully allocated.
1961 lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
1963 if (phba->sli_rev == LPFC_SLI_REV4)
1964 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1965 lpfc_hbq_defs[qno]->entry_count);
1967 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1968 lpfc_hbq_defs[qno]->init_count);
1972 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
1973 * @phba: Pointer to HBA context object.
1974 * @hbqno: HBQ number.
1976 * This function removes the first hbq buffer on an hbq list and returns a
1977 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
1979 static struct hbq_dmabuf *
1980 lpfc_sli_hbqbuf_get(struct list_head *rb_list)
1982 struct lpfc_dmabuf *d_buf;
1984 list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
1987 return container_of(d_buf, struct hbq_dmabuf, dbuf);
1991 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
1992 * @phba: Pointer to HBA context object.
1993 * @tag: Tag of the hbq buffer.
1995 * This function is called with hbalock held. This function searches
1996 * for the hbq buffer associated with the given tag in the hbq buffer
1997 * list. If it finds the hbq buffer, it returns the hbq_buffer other wise
2000 static struct hbq_dmabuf *
2001 lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
2003 struct lpfc_dmabuf *d_buf;
2004 struct hbq_dmabuf *hbq_buf;
2008 if (hbqno >= LPFC_MAX_HBQS)
2011 spin_lock_irq(&phba->hbalock);
2012 list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
2013 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
2014 if (hbq_buf->tag == tag) {
2015 spin_unlock_irq(&phba->hbalock);
2019 spin_unlock_irq(&phba->hbalock);
2020 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT,
2021 "1803 Bad hbq tag. Data: x%x x%x\n",
2022 tag, phba->hbqs[tag >> 16].buffer_count);
2027 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
2028 * @phba: Pointer to HBA context object.
2029 * @hbq_buffer: Pointer to HBQ buffer.
2031 * This function is called with hbalock. This function gives back
2032 * the hbq buffer to firmware. If the HBQ does not have space to
2033 * post the buffer, it will free the buffer.
2036 lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
2041 hbqno = hbq_buffer->tag >> 16;
2042 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
2043 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
2048 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
2049 * @mbxCommand: mailbox command code.
2051 * This function is called by the mailbox event handler function to verify
2052 * that the completed mailbox command is a legitimate mailbox command. If the
2053 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
2054 * and the mailbox event handler will take the HBA offline.
2057 lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
2061 switch (mbxCommand) {
2065 case MBX_WRITE_VPARMS:
2066 case MBX_RUN_BIU_DIAG:
2069 case MBX_CONFIG_LINK:
2070 case MBX_CONFIG_RING:
2071 case MBX_RESET_RING:
2072 case MBX_READ_CONFIG:
2073 case MBX_READ_RCONFIG:
2074 case MBX_READ_SPARM:
2075 case MBX_READ_STATUS:
2079 case MBX_READ_LNK_STAT:
2081 case MBX_UNREG_LOGIN:
2083 case MBX_DUMP_MEMORY:
2084 case MBX_DUMP_CONTEXT:
2087 case MBX_UPDATE_CFG:
2089 case MBX_DEL_LD_ENTRY:
2090 case MBX_RUN_PROGRAM:
2092 case MBX_SET_VARIABLE:
2093 case MBX_UNREG_D_ID:
2094 case MBX_KILL_BOARD:
2095 case MBX_CONFIG_FARP:
2098 case MBX_RUN_BIU_DIAG64:
2099 case MBX_CONFIG_PORT:
2100 case MBX_READ_SPARM64:
2101 case MBX_READ_RPI64:
2102 case MBX_REG_LOGIN64:
2103 case MBX_READ_TOPOLOGY:
2106 case MBX_LOAD_EXP_ROM:
2107 case MBX_ASYNCEVT_ENABLE:
2111 case MBX_PORT_CAPABILITIES:
2112 case MBX_PORT_IOV_CONTROL:
2113 case MBX_SLI4_CONFIG:
2114 case MBX_SLI4_REQ_FTRS:
2116 case MBX_UNREG_FCFI:
2121 case MBX_RESUME_RPI:
2122 case MBX_READ_EVENT_LOG_STATUS:
2123 case MBX_READ_EVENT_LOG:
2124 case MBX_SECURITY_MGMT:
2126 case MBX_ACCESS_VDATA:
2137 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
2138 * @phba: Pointer to HBA context object.
2139 * @pmboxq: Pointer to mailbox command.
2141 * This is completion handler function for mailbox commands issued from
2142 * lpfc_sli_issue_mbox_wait function. This function is called by the
2143 * mailbox event handler function with no lock held. This function
2144 * will wake up thread waiting on the wait queue pointed by context1
2148 lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
2150 wait_queue_head_t *pdone_q;
2151 unsigned long drvr_flag;
2154 * If pdone_q is empty, the driver thread gave up waiting and
2155 * continued running.
2157 pmboxq->mbox_flag |= LPFC_MBX_WAKE;
2158 spin_lock_irqsave(&phba->hbalock, drvr_flag);
2159 pdone_q = (wait_queue_head_t *) pmboxq->context1;
2161 wake_up_interruptible(pdone_q);
2162 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
2168 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
2169 * @phba: Pointer to HBA context object.
2170 * @pmb: Pointer to mailbox object.
2172 * This function is the default mailbox completion handler. It
2173 * frees the memory resources associated with the completed mailbox
2174 * command. If the completed command is a REG_LOGIN mailbox command,
2175 * this function will issue a UREG_LOGIN to re-claim the RPI.
2178 lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2180 struct lpfc_vport *vport = pmb->vport;
2181 struct lpfc_dmabuf *mp;
2182 struct lpfc_nodelist *ndlp;
2183 struct Scsi_Host *shost;
2187 mp = (struct lpfc_dmabuf *) (pmb->context1);
2190 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2195 * If a REG_LOGIN succeeded after node is destroyed or node
2196 * is in re-discovery driver need to cleanup the RPI.
2198 if (!(phba->pport->load_flag & FC_UNLOADING) &&
2199 pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
2200 !pmb->u.mb.mbxStatus) {
2201 rpi = pmb->u.mb.un.varWords[0];
2202 vpi = pmb->u.mb.un.varRegLogin.vpi;
2203 lpfc_unreg_login(phba, vpi, rpi, pmb);
2204 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2205 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2206 if (rc != MBX_NOT_FINISHED)
2210 if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) &&
2211 !(phba->pport->load_flag & FC_UNLOADING) &&
2212 !pmb->u.mb.mbxStatus) {
2213 shost = lpfc_shost_from_vport(vport);
2214 spin_lock_irq(shost->host_lock);
2215 vport->vpi_state |= LPFC_VPI_REGISTERED;
2216 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
2217 spin_unlock_irq(shost->host_lock);
2220 if (pmb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
2221 ndlp = (struct lpfc_nodelist *)pmb->context2;
2223 pmb->context2 = NULL;
2226 /* Check security permission status on INIT_LINK mailbox command */
2227 if ((pmb->u.mb.mbxCommand == MBX_INIT_LINK) &&
2228 (pmb->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
2229 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2230 "2860 SLI authentication is required "
2231 "for INIT_LINK but has not done yet\n");
2233 if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
2234 lpfc_sli4_mbox_cmd_free(phba, pmb);
2236 mempool_free(pmb, phba->mbox_mem_pool);
2240 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
2241 * @phba: Pointer to HBA context object.
2243 * This function is called with no lock held. This function processes all
2244 * the completed mailbox commands and gives it to upper layers. The interrupt
2245 * service routine processes mailbox completion interrupt and adds completed
2246 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
2247 * Worker thread call lpfc_sli_handle_mb_event, which will return the
2248 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
2249 * function returns the mailbox commands to the upper layer by calling the
2250 * completion handler function of each mailbox.
2253 lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
2260 phba->sli.slistat.mbox_event++;
2262 /* Get all completed mailboxe buffers into the cmplq */
2263 spin_lock_irq(&phba->hbalock);
2264 list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
2265 spin_unlock_irq(&phba->hbalock);
2267 /* Get a Mailbox buffer to setup mailbox commands for callback */
2269 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
2275 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
2277 lpfc_debugfs_disc_trc(pmb->vport,
2278 LPFC_DISC_TRC_MBOX_VPORT,
2279 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
2280 (uint32_t)pmbox->mbxCommand,
2281 pmbox->un.varWords[0],
2282 pmbox->un.varWords[1]);
2285 lpfc_debugfs_disc_trc(phba->pport,
2287 "MBOX cmpl: cmd:x%x mb:x%x x%x",
2288 (uint32_t)pmbox->mbxCommand,
2289 pmbox->un.varWords[0],
2290 pmbox->un.varWords[1]);
2295 * It is a fatal error if unknown mbox command completion.
2297 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
2299 /* Unknown mailbox command compl */
2300 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2301 "(%d):0323 Unknown Mailbox command "
2302 "x%x (x%x/x%x) Cmpl\n",
2303 pmb->vport ? pmb->vport->vpi : 0,
2305 lpfc_sli_config_mbox_subsys_get(phba,
2307 lpfc_sli_config_mbox_opcode_get(phba,
2309 phba->link_state = LPFC_HBA_ERROR;
2310 phba->work_hs = HS_FFER3;
2311 lpfc_handle_eratt(phba);
2315 if (pmbox->mbxStatus) {
2316 phba->sli.slistat.mbox_stat_err++;
2317 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
2318 /* Mbox cmd cmpl error - RETRYing */
2319 lpfc_printf_log(phba, KERN_INFO,
2321 "(%d):0305 Mbox cmd cmpl "
2322 "error - RETRYing Data: x%x "
2323 "(x%x/x%x) x%x x%x x%x\n",
2324 pmb->vport ? pmb->vport->vpi : 0,
2326 lpfc_sli_config_mbox_subsys_get(phba,
2328 lpfc_sli_config_mbox_opcode_get(phba,
2331 pmbox->un.varWords[0],
2332 pmb->vport->port_state);
2333 pmbox->mbxStatus = 0;
2334 pmbox->mbxOwner = OWN_HOST;
2335 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2336 if (rc != MBX_NOT_FINISHED)
2341 /* Mailbox cmd <cmd> Cmpl <cmpl> */
2342 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
2343 "(%d):0307 Mailbox cmd x%x (x%x/x%x) Cmpl x%p "
2344 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
2346 pmb->vport ? pmb->vport->vpi : 0,
2348 lpfc_sli_config_mbox_subsys_get(phba, pmb),
2349 lpfc_sli_config_mbox_opcode_get(phba, pmb),
2351 *((uint32_t *) pmbox),
2352 pmbox->un.varWords[0],
2353 pmbox->un.varWords[1],
2354 pmbox->un.varWords[2],
2355 pmbox->un.varWords[3],
2356 pmbox->un.varWords[4],
2357 pmbox->un.varWords[5],
2358 pmbox->un.varWords[6],
2359 pmbox->un.varWords[7],
2360 pmbox->un.varWords[8],
2361 pmbox->un.varWords[9],
2362 pmbox->un.varWords[10]);
2365 pmb->mbox_cmpl(phba,pmb);
2371 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
2372 * @phba: Pointer to HBA context object.
2373 * @pring: Pointer to driver SLI ring object.
2376 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
2377 * is set in the tag the buffer is posted for a particular exchange,
2378 * the function will return the buffer without replacing the buffer.
2379 * If the buffer is for unsolicited ELS or CT traffic, this function
2380 * returns the buffer and also posts another buffer to the firmware.
2382 static struct lpfc_dmabuf *
2383 lpfc_sli_get_buff(struct lpfc_hba *phba,
2384 struct lpfc_sli_ring *pring,
2387 struct hbq_dmabuf *hbq_entry;
2389 if (tag & QUE_BUFTAG_BIT)
2390 return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
2391 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
2394 return &hbq_entry->dbuf;
2398 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
2399 * @phba: Pointer to HBA context object.
2400 * @pring: Pointer to driver SLI ring object.
2401 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
2402 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
2403 * @fch_type: the type for the first frame of the sequence.
2405 * This function is called with no lock held. This function uses the r_ctl and
2406 * type of the received sequence to find the correct callback function to call
2407 * to process the sequence.
2410 lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2411 struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
2416 /* unSolicited Responses */
2417 if (pring->prt[0].profile) {
2418 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
2419 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
2423 /* We must search, based on rctl / type
2424 for the right routine */
2425 for (i = 0; i < pring->num_mask; i++) {
2426 if ((pring->prt[i].rctl == fch_r_ctl) &&
2427 (pring->prt[i].type == fch_type)) {
2428 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
2429 (pring->prt[i].lpfc_sli_rcv_unsol_event)
2430 (phba, pring, saveq);
2438 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
2439 * @phba: Pointer to HBA context object.
2440 * @pring: Pointer to driver SLI ring object.
2441 * @saveq: Pointer to the unsolicited iocb.
2443 * This function is called with no lock held by the ring event handler
2444 * when there is an unsolicited iocb posted to the response ring by the
2445 * firmware. This function gets the buffer associated with the iocbs
2446 * and calls the event handler for the ring. This function handles both
2447 * qring buffers and hbq buffers.
2448 * When the function returns 1 the caller can free the iocb object otherwise
2449 * upper layer functions will free the iocb objects.
2452 lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2453 struct lpfc_iocbq *saveq)
2457 uint32_t Rctl, Type;
2459 struct lpfc_iocbq *iocbq;
2460 struct lpfc_dmabuf *dmzbuf;
2463 irsp = &(saveq->iocb);
2465 if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
2466 if (pring->lpfc_sli_rcv_async_status)
2467 pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
2469 lpfc_printf_log(phba,
2472 "0316 Ring %d handler: unexpected "
2473 "ASYNC_STATUS iocb received evt_code "
2476 irsp->un.asyncstat.evt_code);
2480 if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
2481 (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
2482 if (irsp->ulpBdeCount > 0) {
2483 dmzbuf = lpfc_sli_get_buff(phba, pring,
2484 irsp->un.ulpWord[3]);
2485 lpfc_in_buf_free(phba, dmzbuf);
2488 if (irsp->ulpBdeCount > 1) {
2489 dmzbuf = lpfc_sli_get_buff(phba, pring,
2490 irsp->unsli3.sli3Words[3]);
2491 lpfc_in_buf_free(phba, dmzbuf);
2494 if (irsp->ulpBdeCount > 2) {
2495 dmzbuf = lpfc_sli_get_buff(phba, pring,
2496 irsp->unsli3.sli3Words[7]);
2497 lpfc_in_buf_free(phba, dmzbuf);
2503 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
2504 if (irsp->ulpBdeCount != 0) {
2505 saveq->context2 = lpfc_sli_get_buff(phba, pring,
2506 irsp->un.ulpWord[3]);
2507 if (!saveq->context2)
2508 lpfc_printf_log(phba,
2511 "0341 Ring %d Cannot find buffer for "
2512 "an unsolicited iocb. tag 0x%x\n",
2514 irsp->un.ulpWord[3]);
2516 if (irsp->ulpBdeCount == 2) {
2517 saveq->context3 = lpfc_sli_get_buff(phba, pring,
2518 irsp->unsli3.sli3Words[7]);
2519 if (!saveq->context3)
2520 lpfc_printf_log(phba,
2523 "0342 Ring %d Cannot find buffer for an"
2524 " unsolicited iocb. tag 0x%x\n",
2526 irsp->unsli3.sli3Words[7]);
2528 list_for_each_entry(iocbq, &saveq->list, list) {
2529 irsp = &(iocbq->iocb);
2530 if (irsp->ulpBdeCount != 0) {
2531 iocbq->context2 = lpfc_sli_get_buff(phba, pring,
2532 irsp->un.ulpWord[3]);
2533 if (!iocbq->context2)
2534 lpfc_printf_log(phba,
2537 "0343 Ring %d Cannot find "
2538 "buffer for an unsolicited iocb"
2539 ". tag 0x%x\n", pring->ringno,
2540 irsp->un.ulpWord[3]);
2542 if (irsp->ulpBdeCount == 2) {
2543 iocbq->context3 = lpfc_sli_get_buff(phba, pring,
2544 irsp->unsli3.sli3Words[7]);
2545 if (!iocbq->context3)
2546 lpfc_printf_log(phba,
2549 "0344 Ring %d Cannot find "
2550 "buffer for an unsolicited "
2553 irsp->unsli3.sli3Words[7]);
2557 if (irsp->ulpBdeCount != 0 &&
2558 (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
2559 irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
2562 /* search continue save q for same XRI */
2563 list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
2564 if (iocbq->iocb.unsli3.rcvsli3.ox_id ==
2565 saveq->iocb.unsli3.rcvsli3.ox_id) {
2566 list_add_tail(&saveq->list, &iocbq->list);
2572 list_add_tail(&saveq->clist,
2573 &pring->iocb_continue_saveq);
2574 if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
2575 list_del_init(&iocbq->clist);
2577 irsp = &(saveq->iocb);
2581 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
2582 (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
2583 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
2584 Rctl = FC_RCTL_ELS_REQ;
2587 w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
2588 Rctl = w5p->hcsw.Rctl;
2589 Type = w5p->hcsw.Type;
2591 /* Firmware Workaround */
2592 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
2593 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
2594 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
2595 Rctl = FC_RCTL_ELS_REQ;
2597 w5p->hcsw.Rctl = Rctl;
2598 w5p->hcsw.Type = Type;
2602 if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
2603 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2604 "0313 Ring %d handler: unexpected Rctl x%x "
2605 "Type x%x received\n",
2606 pring->ringno, Rctl, Type);
2612 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
2613 * @phba: Pointer to HBA context object.
2614 * @pring: Pointer to driver SLI ring object.
2615 * @prspiocb: Pointer to response iocb object.
2617 * This function looks up the iocb_lookup table to get the command iocb
2618 * corresponding to the given response iocb using the iotag of the
2619 * response iocb. This function is called with the hbalock held.
2620 * This function returns the command iocb object if it finds the command
2621 * iocb else returns NULL.
2623 static struct lpfc_iocbq *
2624 lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
2625 struct lpfc_sli_ring *pring,
2626 struct lpfc_iocbq *prspiocb)
2628 struct lpfc_iocbq *cmd_iocb = NULL;
2631 iotag = prspiocb->iocb.ulpIoTag;
2633 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2634 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2635 list_del_init(&cmd_iocb->list);
2636 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
2637 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
2642 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2643 "0317 iotag x%x is out off "
2644 "range: max iotag x%x wd0 x%x\n",
2645 iotag, phba->sli.last_iotag,
2646 *(((uint32_t *) &prspiocb->iocb) + 7));
2651 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2652 * @phba: Pointer to HBA context object.
2653 * @pring: Pointer to driver SLI ring object.
2656 * This function looks up the iocb_lookup table to get the command iocb
2657 * corresponding to the given iotag. This function is called with the
2659 * This function returns the command iocb object if it finds the command
2660 * iocb else returns NULL.
2662 static struct lpfc_iocbq *
2663 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
2664 struct lpfc_sli_ring *pring, uint16_t iotag)
2666 struct lpfc_iocbq *cmd_iocb;
2668 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2669 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2670 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
2671 /* remove from txcmpl queue list */
2672 list_del_init(&cmd_iocb->list);
2673 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
2677 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2678 "0372 iotag x%x is out off range: max iotag (x%x)\n",
2679 iotag, phba->sli.last_iotag);
2684 * lpfc_sli_process_sol_iocb - process solicited iocb completion
2685 * @phba: Pointer to HBA context object.
2686 * @pring: Pointer to driver SLI ring object.
2687 * @saveq: Pointer to the response iocb to be processed.
2689 * This function is called by the ring event handler for non-fcp
2690 * rings when there is a new response iocb in the response ring.
2691 * The caller is not required to hold any locks. This function
2692 * gets the command iocb associated with the response iocb and
2693 * calls the completion handler for the command iocb. If there
2694 * is no completion handler, the function will free the resources
2695 * associated with command iocb. If the response iocb is for
2696 * an already aborted command iocb, the status of the completion
2697 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
2698 * This function always returns 1.
2701 lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2702 struct lpfc_iocbq *saveq)
2704 struct lpfc_iocbq *cmdiocbp;
2706 unsigned long iflag;
2708 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
2709 spin_lock_irqsave(&phba->hbalock, iflag);
2710 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
2711 spin_unlock_irqrestore(&phba->hbalock, iflag);
2714 if (cmdiocbp->iocb_cmpl) {
2716 * If an ELS command failed send an event to mgmt
2719 if (saveq->iocb.ulpStatus &&
2720 (pring->ringno == LPFC_ELS_RING) &&
2721 (cmdiocbp->iocb.ulpCommand ==
2722 CMD_ELS_REQUEST64_CR))
2723 lpfc_send_els_failure_event(phba,
2727 * Post all ELS completions to the worker thread.
2728 * All other are passed to the completion callback.
2730 if (pring->ringno == LPFC_ELS_RING) {
2731 if ((phba->sli_rev < LPFC_SLI_REV4) &&
2732 (cmdiocbp->iocb_flag &
2733 LPFC_DRIVER_ABORTED)) {
2734 spin_lock_irqsave(&phba->hbalock,
2736 cmdiocbp->iocb_flag &=
2737 ~LPFC_DRIVER_ABORTED;
2738 spin_unlock_irqrestore(&phba->hbalock,
2740 saveq->iocb.ulpStatus =
2741 IOSTAT_LOCAL_REJECT;
2742 saveq->iocb.un.ulpWord[4] =
2745 /* Firmware could still be in progress
2746 * of DMAing payload, so don't free data
2747 * buffer till after a hbeat.
2749 spin_lock_irqsave(&phba->hbalock,
2751 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
2752 spin_unlock_irqrestore(&phba->hbalock,
2755 if (phba->sli_rev == LPFC_SLI_REV4) {
2756 if (saveq->iocb_flag &
2757 LPFC_EXCHANGE_BUSY) {
2758 /* Set cmdiocb flag for the
2759 * exchange busy so sgl (xri)
2760 * will not be released until
2761 * the abort xri is received
2765 &phba->hbalock, iflag);
2766 cmdiocbp->iocb_flag |=
2768 spin_unlock_irqrestore(
2769 &phba->hbalock, iflag);
2771 if (cmdiocbp->iocb_flag &
2772 LPFC_DRIVER_ABORTED) {
2774 * Clear LPFC_DRIVER_ABORTED
2775 * bit in case it was driver
2779 &phba->hbalock, iflag);
2780 cmdiocbp->iocb_flag &=
2781 ~LPFC_DRIVER_ABORTED;
2782 spin_unlock_irqrestore(
2783 &phba->hbalock, iflag);
2784 cmdiocbp->iocb.ulpStatus =
2785 IOSTAT_LOCAL_REJECT;
2786 cmdiocbp->iocb.un.ulpWord[4] =
2787 IOERR_ABORT_REQUESTED;
2789 * For SLI4, irsiocb contains
2790 * NO_XRI in sli_xritag, it
2791 * shall not affect releasing
2792 * sgl (xri) process.
2794 saveq->iocb.ulpStatus =
2795 IOSTAT_LOCAL_REJECT;
2796 saveq->iocb.un.ulpWord[4] =
2799 &phba->hbalock, iflag);
2801 LPFC_DELAY_MEM_FREE;
2802 spin_unlock_irqrestore(
2803 &phba->hbalock, iflag);
2807 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
2809 lpfc_sli_release_iocbq(phba, cmdiocbp);
2812 * Unknown initiating command based on the response iotag.
2813 * This could be the case on the ELS ring because of
2816 if (pring->ringno != LPFC_ELS_RING) {
2818 * Ring <ringno> handler: unexpected completion IoTag
2821 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2822 "0322 Ring %d handler: "
2823 "unexpected completion IoTag x%x "
2824 "Data: x%x x%x x%x x%x\n",
2826 saveq->iocb.ulpIoTag,
2827 saveq->iocb.ulpStatus,
2828 saveq->iocb.un.ulpWord[4],
2829 saveq->iocb.ulpCommand,
2830 saveq->iocb.ulpContext);
2838 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
2839 * @phba: Pointer to HBA context object.
2840 * @pring: Pointer to driver SLI ring object.
2842 * This function is called from the iocb ring event handlers when
2843 * put pointer is ahead of the get pointer for a ring. This function signal
2844 * an error attention condition to the worker thread and the worker
2845 * thread will transition the HBA to offline state.
2848 lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
2850 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2852 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
2853 * rsp ring <portRspMax>
2855 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2856 "0312 Ring %d handler: portRspPut %d "
2857 "is bigger than rsp ring %d\n",
2858 pring->ringno, le32_to_cpu(pgp->rspPutInx),
2859 pring->sli.sli3.numRiocb);
2861 phba->link_state = LPFC_HBA_ERROR;
2864 * All error attention handlers are posted to
2867 phba->work_ha |= HA_ERATT;
2868 phba->work_hs = HS_FFER3;
2870 lpfc_worker_wake_up(phba);
2876 * lpfc_poll_eratt - Error attention polling timer timeout handler
2877 * @ptr: Pointer to address of HBA context object.
2879 * This function is invoked by the Error Attention polling timer when the
2880 * timer times out. It will check the SLI Error Attention register for
2881 * possible attention events. If so, it will post an Error Attention event
2882 * and wake up worker thread to process it. Otherwise, it will set up the
2883 * Error Attention polling timer for the next poll.
2885 void lpfc_poll_eratt(unsigned long ptr)
2887 struct lpfc_hba *phba;
2888 uint32_t eratt = 0, rem;
2889 uint64_t sli_intr, cnt;
2891 phba = (struct lpfc_hba *)ptr;
2893 /* Here we will also keep track of interrupts per sec of the hba */
2894 sli_intr = phba->sli.slistat.sli_intr;
2896 if (phba->sli.slistat.sli_prev_intr > sli_intr)
2897 cnt = (((uint64_t)(-1) - phba->sli.slistat.sli_prev_intr) +
2900 cnt = (sli_intr - phba->sli.slistat.sli_prev_intr);
2902 /* 64-bit integer division not supporte on 32-bit x86 - use do_div */
2903 rem = do_div(cnt, LPFC_ERATT_POLL_INTERVAL);
2904 phba->sli.slistat.sli_ips = cnt;
2906 phba->sli.slistat.sli_prev_intr = sli_intr;
2908 /* Check chip HA register for error event */
2909 eratt = lpfc_sli_check_eratt(phba);
2912 /* Tell the worker thread there is work to do */
2913 lpfc_worker_wake_up(phba);
2915 /* Restart the timer for next eratt poll */
2916 mod_timer(&phba->eratt_poll,
2918 msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
2924 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
2925 * @phba: Pointer to HBA context object.
2926 * @pring: Pointer to driver SLI ring object.
2927 * @mask: Host attention register mask for this ring.
2929 * This function is called from the interrupt context when there is a ring
2930 * event for the fcp ring. The caller does not hold any lock.
2931 * The function processes each response iocb in the response ring until it
2932 * finds an iocb with LE bit set and chains all the iocbs up to the iocb with
2933 * LE bit set. The function will call the completion handler of the command iocb
2934 * if the response iocb indicates a completion for a command iocb or it is
2935 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
2936 * function if this is an unsolicited iocb.
2937 * This routine presumes LPFC_FCP_RING handling and doesn't bother
2938 * to check it explicitly.
2941 lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
2942 struct lpfc_sli_ring *pring, uint32_t mask)
2944 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2945 IOCB_t *irsp = NULL;
2946 IOCB_t *entry = NULL;
2947 struct lpfc_iocbq *cmdiocbq = NULL;
2948 struct lpfc_iocbq rspiocbq;
2950 uint32_t portRspPut, portRspMax;
2952 lpfc_iocb_type type;
2953 unsigned long iflag;
2954 uint32_t rsp_cmpl = 0;
2956 spin_lock_irqsave(&phba->hbalock, iflag);
2957 pring->stats.iocb_event++;
2960 * The next available response entry should never exceed the maximum
2961 * entries. If it does, treat it as an adapter hardware error.
2963 portRspMax = pring->sli.sli3.numRiocb;
2964 portRspPut = le32_to_cpu(pgp->rspPutInx);
2965 if (unlikely(portRspPut >= portRspMax)) {
2966 lpfc_sli_rsp_pointers_error(phba, pring);
2967 spin_unlock_irqrestore(&phba->hbalock, iflag);
2970 if (phba->fcp_ring_in_use) {
2971 spin_unlock_irqrestore(&phba->hbalock, iflag);
2974 phba->fcp_ring_in_use = 1;
2977 while (pring->sli.sli3.rspidx != portRspPut) {
2979 * Fetch an entry off the ring and copy it into a local data
2980 * structure. The copy involves a byte-swap since the
2981 * network byte order and pci byte orders are different.
2983 entry = lpfc_resp_iocb(phba, pring);
2984 phba->last_completion_time = jiffies;
2986 if (++pring->sli.sli3.rspidx >= portRspMax)
2987 pring->sli.sli3.rspidx = 0;
2989 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
2990 (uint32_t *) &rspiocbq.iocb,
2991 phba->iocb_rsp_size);
2992 INIT_LIST_HEAD(&(rspiocbq.list));
2993 irsp = &rspiocbq.iocb;
2995 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
2996 pring->stats.iocb_rsp++;
2999 if (unlikely(irsp->ulpStatus)) {
3001 * If resource errors reported from HBA, reduce
3002 * queuedepths of the SCSI device.
3004 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3005 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3006 IOERR_NO_RESOURCES)) {
3007 spin_unlock_irqrestore(&phba->hbalock, iflag);
3008 phba->lpfc_rampdown_queue_depth(phba);
3009 spin_lock_irqsave(&phba->hbalock, iflag);
3012 /* Rsp ring <ringno> error: IOCB */
3013 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3014 "0336 Rsp Ring %d error: IOCB Data: "
3015 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
3017 irsp->un.ulpWord[0],
3018 irsp->un.ulpWord[1],
3019 irsp->un.ulpWord[2],
3020 irsp->un.ulpWord[3],
3021 irsp->un.ulpWord[4],
3022 irsp->un.ulpWord[5],
3023 *(uint32_t *)&irsp->un1,
3024 *((uint32_t *)&irsp->un1 + 1));
3028 case LPFC_ABORT_IOCB:
3031 * Idle exchange closed via ABTS from port. No iocb
3032 * resources need to be recovered.
3034 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
3035 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3036 "0333 IOCB cmd 0x%x"
3037 " processed. Skipping"
3043 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
3045 if (unlikely(!cmdiocbq))
3047 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED)
3048 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
3049 if (cmdiocbq->iocb_cmpl) {
3050 spin_unlock_irqrestore(&phba->hbalock, iflag);
3051 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
3053 spin_lock_irqsave(&phba->hbalock, iflag);
3056 case LPFC_UNSOL_IOCB:
3057 spin_unlock_irqrestore(&phba->hbalock, iflag);
3058 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
3059 spin_lock_irqsave(&phba->hbalock, iflag);
3062 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3063 char adaptermsg[LPFC_MAX_ADPTMSG];
3064 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3065 memcpy(&adaptermsg[0], (uint8_t *) irsp,
3067 dev_warn(&((phba->pcidev)->dev),
3069 phba->brd_no, adaptermsg);
3071 /* Unknown IOCB command */
3072 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3073 "0334 Unknown IOCB command "
3074 "Data: x%x, x%x x%x x%x x%x\n",
3075 type, irsp->ulpCommand,
3084 * The response IOCB has been processed. Update the ring
3085 * pointer in SLIM. If the port response put pointer has not
3086 * been updated, sync the pgp->rspPutInx and fetch the new port
3087 * response put pointer.
3089 writel(pring->sli.sli3.rspidx,
3090 &phba->host_gp[pring->ringno].rspGetInx);
3092 if (pring->sli.sli3.rspidx == portRspPut)
3093 portRspPut = le32_to_cpu(pgp->rspPutInx);
3096 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
3097 pring->stats.iocb_rsp_full++;
3098 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3099 writel(status, phba->CAregaddr);
3100 readl(phba->CAregaddr);
3102 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3103 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3104 pring->stats.iocb_cmd_empty++;
3106 /* Force update of the local copy of cmdGetInx */
3107 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3108 lpfc_sli_resume_iocb(phba, pring);
3110 if ((pring->lpfc_sli_cmd_available))
3111 (pring->lpfc_sli_cmd_available) (phba, pring);
3115 phba->fcp_ring_in_use = 0;
3116 spin_unlock_irqrestore(&phba->hbalock, iflag);
3121 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
3122 * @phba: Pointer to HBA context object.
3123 * @pring: Pointer to driver SLI ring object.
3124 * @rspiocbp: Pointer to driver response IOCB object.
3126 * This function is called from the worker thread when there is a slow-path
3127 * response IOCB to process. This function chains all the response iocbs until
3128 * seeing the iocb with the LE bit set. The function will call
3129 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
3130 * completion of a command iocb. The function will call the
3131 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
3132 * The function frees the resources or calls the completion handler if this
3133 * iocb is an abort completion. The function returns NULL when the response
3134 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
3135 * this function shall chain the iocb on to the iocb_continueq and return the
3136 * response iocb passed in.
3138 static struct lpfc_iocbq *
3139 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3140 struct lpfc_iocbq *rspiocbp)
3142 struct lpfc_iocbq *saveq;
3143 struct lpfc_iocbq *cmdiocbp;
3144 struct lpfc_iocbq *next_iocb;
3145 IOCB_t *irsp = NULL;
3146 uint32_t free_saveq;
3147 uint8_t iocb_cmd_type;
3148 lpfc_iocb_type type;
3149 unsigned long iflag;
3152 spin_lock_irqsave(&phba->hbalock, iflag);
3153 /* First add the response iocb to the countinueq list */
3154 list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
3155 pring->iocb_continueq_cnt++;
3157 /* Now, determine whether the list is completed for processing */
3158 irsp = &rspiocbp->iocb;
3161 * By default, the driver expects to free all resources
3162 * associated with this iocb completion.
3165 saveq = list_get_first(&pring->iocb_continueq,
3166 struct lpfc_iocbq, list);
3167 irsp = &(saveq->iocb);
3168 list_del_init(&pring->iocb_continueq);
3169 pring->iocb_continueq_cnt = 0;
3171 pring->stats.iocb_rsp++;
3174 * If resource errors reported from HBA, reduce
3175 * queuedepths of the SCSI device.
3177 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3178 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3179 IOERR_NO_RESOURCES)) {
3180 spin_unlock_irqrestore(&phba->hbalock, iflag);
3181 phba->lpfc_rampdown_queue_depth(phba);
3182 spin_lock_irqsave(&phba->hbalock, iflag);
3185 if (irsp->ulpStatus) {
3186 /* Rsp ring <ringno> error: IOCB */
3187 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3188 "0328 Rsp Ring %d error: "
3193 "x%x x%x x%x x%x\n",
3195 irsp->un.ulpWord[0],
3196 irsp->un.ulpWord[1],
3197 irsp->un.ulpWord[2],
3198 irsp->un.ulpWord[3],
3199 irsp->un.ulpWord[4],
3200 irsp->un.ulpWord[5],
3201 *(((uint32_t *) irsp) + 6),
3202 *(((uint32_t *) irsp) + 7),
3203 *(((uint32_t *) irsp) + 8),
3204 *(((uint32_t *) irsp) + 9),
3205 *(((uint32_t *) irsp) + 10),
3206 *(((uint32_t *) irsp) + 11),
3207 *(((uint32_t *) irsp) + 12),
3208 *(((uint32_t *) irsp) + 13),
3209 *(((uint32_t *) irsp) + 14),
3210 *(((uint32_t *) irsp) + 15));
3214 * Fetch the IOCB command type and call the correct completion
3215 * routine. Solicited and Unsolicited IOCBs on the ELS ring
3216 * get freed back to the lpfc_iocb_list by the discovery
3219 iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
3220 type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
3223 spin_unlock_irqrestore(&phba->hbalock, iflag);
3224 rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
3225 spin_lock_irqsave(&phba->hbalock, iflag);
3228 case LPFC_UNSOL_IOCB:
3229 spin_unlock_irqrestore(&phba->hbalock, iflag);
3230 rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
3231 spin_lock_irqsave(&phba->hbalock, iflag);
3236 case LPFC_ABORT_IOCB:
3238 if (irsp->ulpCommand != CMD_XRI_ABORTED_CX)
3239 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
3242 /* Call the specified completion routine */
3243 if (cmdiocbp->iocb_cmpl) {
3244 spin_unlock_irqrestore(&phba->hbalock,
3246 (cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
3248 spin_lock_irqsave(&phba->hbalock,
3251 __lpfc_sli_release_iocbq(phba,
3256 case LPFC_UNKNOWN_IOCB:
3257 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3258 char adaptermsg[LPFC_MAX_ADPTMSG];
3259 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3260 memcpy(&adaptermsg[0], (uint8_t *)irsp,
3262 dev_warn(&((phba->pcidev)->dev),
3264 phba->brd_no, adaptermsg);
3266 /* Unknown IOCB command */
3267 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3268 "0335 Unknown IOCB "
3269 "command Data: x%x "
3280 list_for_each_entry_safe(rspiocbp, next_iocb,
3281 &saveq->list, list) {
3282 list_del(&rspiocbp->list);
3283 __lpfc_sli_release_iocbq(phba, rspiocbp);
3285 __lpfc_sli_release_iocbq(phba, saveq);
3289 spin_unlock_irqrestore(&phba->hbalock, iflag);
3294 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
3295 * @phba: Pointer to HBA context object.
3296 * @pring: Pointer to driver SLI ring object.
3297 * @mask: Host attention register mask for this ring.
3299 * This routine wraps the actual slow_ring event process routine from the
3300 * API jump table function pointer from the lpfc_hba struct.
3303 lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
3304 struct lpfc_sli_ring *pring, uint32_t mask)
3306 phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
3310 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
3311 * @phba: Pointer to HBA context object.
3312 * @pring: Pointer to driver SLI ring object.
3313 * @mask: Host attention register mask for this ring.
3315 * This function is called from the worker thread when there is a ring event
3316 * for non-fcp rings. The caller does not hold any lock. The function will
3317 * remove each response iocb in the response ring and calls the handle
3318 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3321 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
3322 struct lpfc_sli_ring *pring, uint32_t mask)
3324 struct lpfc_pgp *pgp;
3326 IOCB_t *irsp = NULL;
3327 struct lpfc_iocbq *rspiocbp = NULL;
3328 uint32_t portRspPut, portRspMax;
3329 unsigned long iflag;
3332 pgp = &phba->port_gp[pring->ringno];
3333 spin_lock_irqsave(&phba->hbalock, iflag);
3334 pring->stats.iocb_event++;
3337 * The next available response entry should never exceed the maximum
3338 * entries. If it does, treat it as an adapter hardware error.
3340 portRspMax = pring->sli.sli3.numRiocb;
3341 portRspPut = le32_to_cpu(pgp->rspPutInx);
3342 if (portRspPut >= portRspMax) {
3344 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
3345 * rsp ring <portRspMax>
3347 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3348 "0303 Ring %d handler: portRspPut %d "
3349 "is bigger than rsp ring %d\n",
3350 pring->ringno, portRspPut, portRspMax);
3352 phba->link_state = LPFC_HBA_ERROR;
3353 spin_unlock_irqrestore(&phba->hbalock, iflag);
3355 phba->work_hs = HS_FFER3;
3356 lpfc_handle_eratt(phba);
3362 while (pring->sli.sli3.rspidx != portRspPut) {
3364 * Build a completion list and call the appropriate handler.
3365 * The process is to get the next available response iocb, get
3366 * a free iocb from the list, copy the response data into the
3367 * free iocb, insert to the continuation list, and update the
3368 * next response index to slim. This process makes response
3369 * iocb's in the ring available to DMA as fast as possible but
3370 * pays a penalty for a copy operation. Since the iocb is
3371 * only 32 bytes, this penalty is considered small relative to
3372 * the PCI reads for register values and a slim write. When
3373 * the ulpLe field is set, the entire Command has been
3376 entry = lpfc_resp_iocb(phba, pring);
3378 phba->last_completion_time = jiffies;
3379 rspiocbp = __lpfc_sli_get_iocbq(phba);
3380 if (rspiocbp == NULL) {
3381 printk(KERN_ERR "%s: out of buffers! Failing "
3382 "completion.\n", __func__);
3386 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
3387 phba->iocb_rsp_size);
3388 irsp = &rspiocbp->iocb;
3390 if (++pring->sli.sli3.rspidx >= portRspMax)
3391 pring->sli.sli3.rspidx = 0;
3393 if (pring->ringno == LPFC_ELS_RING) {
3394 lpfc_debugfs_slow_ring_trc(phba,
3395 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
3396 *(((uint32_t *) irsp) + 4),
3397 *(((uint32_t *) irsp) + 6),
3398 *(((uint32_t *) irsp) + 7));
3401 writel(pring->sli.sli3.rspidx,
3402 &phba->host_gp[pring->ringno].rspGetInx);
3404 spin_unlock_irqrestore(&phba->hbalock, iflag);
3405 /* Handle the response IOCB */
3406 rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
3407 spin_lock_irqsave(&phba->hbalock, iflag);
3410 * If the port response put pointer has not been updated, sync
3411 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
3412 * response put pointer.
3414 if (pring->sli.sli3.rspidx == portRspPut) {
3415 portRspPut = le32_to_cpu(pgp->rspPutInx);
3417 } /* while (pring->sli.sli3.rspidx != portRspPut) */
3419 if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
3420 /* At least one response entry has been freed */
3421 pring->stats.iocb_rsp_full++;
3422 /* SET RxRE_RSP in Chip Att register */
3423 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3424 writel(status, phba->CAregaddr);
3425 readl(phba->CAregaddr); /* flush */
3427 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3428 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3429 pring->stats.iocb_cmd_empty++;
3431 /* Force update of the local copy of cmdGetInx */
3432 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3433 lpfc_sli_resume_iocb(phba, pring);
3435 if ((pring->lpfc_sli_cmd_available))
3436 (pring->lpfc_sli_cmd_available) (phba, pring);
3440 spin_unlock_irqrestore(&phba->hbalock, iflag);
3445 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
3446 * @phba: Pointer to HBA context object.
3447 * @pring: Pointer to driver SLI ring object.
3448 * @mask: Host attention register mask for this ring.
3450 * This function is called from the worker thread when there is a pending
3451 * ELS response iocb on the driver internal slow-path response iocb worker
3452 * queue. The caller does not hold any lock. The function will remove each
3453 * response iocb from the response worker queue and calls the handle
3454 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3457 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
3458 struct lpfc_sli_ring *pring, uint32_t mask)
3460 struct lpfc_iocbq *irspiocbq;
3461 struct hbq_dmabuf *dmabuf;
3462 struct lpfc_cq_event *cq_event;
3463 unsigned long iflag;
3465 spin_lock_irqsave(&phba->hbalock, iflag);
3466 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
3467 spin_unlock_irqrestore(&phba->hbalock, iflag);
3468 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
3469 /* Get the response iocb from the head of work queue */
3470 spin_lock_irqsave(&phba->hbalock, iflag);
3471 list_remove_head(&phba->sli4_hba.sp_queue_event,
3472 cq_event, struct lpfc_cq_event, list);
3473 spin_unlock_irqrestore(&phba->hbalock, iflag);
3475 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
3476 case CQE_CODE_COMPL_WQE:
3477 irspiocbq = container_of(cq_event, struct lpfc_iocbq,
3479 /* Translate ELS WCQE to response IOCBQ */
3480 irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba,
3483 lpfc_sli_sp_handle_rspiocb(phba, pring,
3486 case CQE_CODE_RECEIVE:
3487 case CQE_CODE_RECEIVE_V1:
3488 dmabuf = container_of(cq_event, struct hbq_dmabuf,
3490 lpfc_sli4_handle_received_buffer(phba, dmabuf);
3499 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
3500 * @phba: Pointer to HBA context object.
3501 * @pring: Pointer to driver SLI ring object.
3503 * This function aborts all iocbs in the given ring and frees all the iocb
3504 * objects in txq. This function issues an abort iocb for all the iocb commands
3505 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3506 * the return of this function. The caller is not required to hold any locks.
3509 lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3511 LIST_HEAD(completions);
3512 struct lpfc_iocbq *iocb, *next_iocb;
3514 if (pring->ringno == LPFC_ELS_RING) {
3515 lpfc_fabric_abort_hba(phba);
3518 /* Error everything on txq and txcmplq
3521 spin_lock_irq(&phba->hbalock);
3522 list_splice_init(&pring->txq, &completions);
3524 /* Next issue ABTS for everything on the txcmplq */
3525 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3526 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3528 spin_unlock_irq(&phba->hbalock);
3530 /* Cancel all the IOCBs from the completions list */
3531 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3536 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
3537 * @phba: Pointer to HBA context object.
3539 * This function flushes all iocbs in the fcp ring and frees all the iocb
3540 * objects in txq and txcmplq. This function will not issue abort iocbs
3541 * for all the iocb commands in txcmplq, they will just be returned with
3542 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3543 * slot has been permanently disabled.
3546 lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba)
3550 struct lpfc_sli *psli = &phba->sli;
3551 struct lpfc_sli_ring *pring;
3553 /* Currently, only one fcp ring */
3554 pring = &psli->ring[psli->fcp_ring];
3556 spin_lock_irq(&phba->hbalock);
3557 /* Retrieve everything on txq */
3558 list_splice_init(&pring->txq, &txq);
3560 /* Retrieve everything on the txcmplq */
3561 list_splice_init(&pring->txcmplq, &txcmplq);
3563 /* Indicate the I/O queues are flushed */
3564 phba->hba_flag |= HBA_FCP_IOQ_FLUSH;
3565 spin_unlock_irq(&phba->hbalock);
3568 lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
3571 /* Flush the txcmpq */
3572 lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
3577 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
3578 * @phba: Pointer to HBA context object.
3579 * @mask: Bit mask to be checked.
3581 * This function reads the host status register and compares
3582 * with the provided bit mask to check if HBA completed
3583 * the restart. This function will wait in a loop for the
3584 * HBA to complete restart. If the HBA does not restart within
3585 * 15 iterations, the function will reset the HBA again. The
3586 * function returns 1 when HBA fail to restart otherwise returns
3590 lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
3596 /* Read the HBA Host Status Register */
3597 if (lpfc_readl(phba->HSregaddr, &status))
3601 * Check status register every 100ms for 5 retries, then every
3602 * 500ms for 5, then every 2.5 sec for 5, then reset board and
3603 * every 2.5 sec for 4.
3604 * Break our of the loop if errors occurred during init.
3606 while (((status & mask) != mask) &&
3607 !(status & HS_FFERM) &&
3619 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3620 lpfc_sli_brdrestart(phba);
3622 /* Read the HBA Host Status Register */
3623 if (lpfc_readl(phba->HSregaddr, &status)) {
3629 /* Check to see if any errors occurred during init */
3630 if ((status & HS_FFERM) || (i >= 20)) {
3631 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3632 "2751 Adapter failed to restart, "
3633 "status reg x%x, FW Data: A8 x%x AC x%x\n",
3635 readl(phba->MBslimaddr + 0xa8),
3636 readl(phba->MBslimaddr + 0xac));
3637 phba->link_state = LPFC_HBA_ERROR;
3645 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3646 * @phba: Pointer to HBA context object.
3647 * @mask: Bit mask to be checked.
3649 * This function checks the host status register to check if HBA is
3650 * ready. This function will wait in a loop for the HBA to be ready
3651 * If the HBA is not ready , the function will will reset the HBA PCI
3652 * function again. The function returns 1 when HBA fail to be ready
3653 * otherwise returns zero.
3656 lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
3661 /* Read the HBA Host Status Register */
3662 status = lpfc_sli4_post_status_check(phba);
3665 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3666 lpfc_sli_brdrestart(phba);
3667 status = lpfc_sli4_post_status_check(phba);
3670 /* Check to see if any errors occurred during init */
3672 phba->link_state = LPFC_HBA_ERROR;
3675 phba->sli4_hba.intr_enable = 0;
3681 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3682 * @phba: Pointer to HBA context object.
3683 * @mask: Bit mask to be checked.
3685 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3686 * from the API jump table function pointer from the lpfc_hba struct.
3689 lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
3691 return phba->lpfc_sli_brdready(phba, mask);
3694 #define BARRIER_TEST_PATTERN (0xdeadbeef)
3697 * lpfc_reset_barrier - Make HBA ready for HBA reset
3698 * @phba: Pointer to HBA context object.
3700 * This function is called before resetting an HBA. This function is called
3701 * with hbalock held and requests HBA to quiesce DMAs before a reset.
3703 void lpfc_reset_barrier(struct lpfc_hba *phba)
3705 uint32_t __iomem *resp_buf;
3706 uint32_t __iomem *mbox_buf;
3707 volatile uint32_t mbox;
3708 uint32_t hc_copy, ha_copy, resp_data;
3712 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
3713 if (hdrtype != 0x80 ||
3714 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
3715 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
3719 * Tell the other part of the chip to suspend temporarily all
3722 resp_buf = phba->MBslimaddr;
3724 /* Disable the error attention */
3725 if (lpfc_readl(phba->HCregaddr, &hc_copy))
3727 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
3728 readl(phba->HCregaddr); /* flush */
3729 phba->link_flag |= LS_IGNORE_ERATT;
3731 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3733 if (ha_copy & HA_ERATT) {
3734 /* Clear Chip error bit */
3735 writel(HA_ERATT, phba->HAregaddr);
3736 phba->pport->stopped = 1;
3740 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
3741 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
3743 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
3744 mbox_buf = phba->MBslimaddr;
3745 writel(mbox, mbox_buf);
3747 for (i = 0; i < 50; i++) {
3748 if (lpfc_readl((resp_buf + 1), &resp_data))
3750 if (resp_data != ~(BARRIER_TEST_PATTERN))
3756 if (lpfc_readl((resp_buf + 1), &resp_data))
3758 if (resp_data != ~(BARRIER_TEST_PATTERN)) {
3759 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
3760 phba->pport->stopped)
3766 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
3768 for (i = 0; i < 500; i++) {
3769 if (lpfc_readl(resp_buf, &resp_data))
3771 if (resp_data != mbox)
3780 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3782 if (!(ha_copy & HA_ERATT))
3788 if (readl(phba->HAregaddr) & HA_ERATT) {
3789 writel(HA_ERATT, phba->HAregaddr);
3790 phba->pport->stopped = 1;
3794 phba->link_flag &= ~LS_IGNORE_ERATT;
3795 writel(hc_copy, phba->HCregaddr);
3796 readl(phba->HCregaddr); /* flush */
3800 * lpfc_sli_brdkill - Issue a kill_board mailbox command
3801 * @phba: Pointer to HBA context object.
3803 * This function issues a kill_board mailbox command and waits for
3804 * the error attention interrupt. This function is called for stopping
3805 * the firmware processing. The caller is not required to hold any
3806 * locks. This function calls lpfc_hba_down_post function to free
3807 * any pending commands after the kill. The function will return 1 when it
3808 * fails to kill the board else will return 0.
3811 lpfc_sli_brdkill(struct lpfc_hba *phba)
3813 struct lpfc_sli *psli;
3823 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3824 "0329 Kill HBA Data: x%x x%x\n",
3825 phba->pport->port_state, psli->sli_flag);
3827 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3831 /* Disable the error attention */
3832 spin_lock_irq(&phba->hbalock);
3833 if (lpfc_readl(phba->HCregaddr, &status)) {
3834 spin_unlock_irq(&phba->hbalock);
3835 mempool_free(pmb, phba->mbox_mem_pool);
3838 status &= ~HC_ERINT_ENA;
3839 writel(status, phba->HCregaddr);
3840 readl(phba->HCregaddr); /* flush */
3841 phba->link_flag |= LS_IGNORE_ERATT;
3842 spin_unlock_irq(&phba->hbalock);
3844 lpfc_kill_board(phba, pmb);
3845 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3846 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3848 if (retval != MBX_SUCCESS) {
3849 if (retval != MBX_BUSY)
3850 mempool_free(pmb, phba->mbox_mem_pool);
3851 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3852 "2752 KILL_BOARD command failed retval %d\n",
3854 spin_lock_irq(&phba->hbalock);
3855 phba->link_flag &= ~LS_IGNORE_ERATT;
3856 spin_unlock_irq(&phba->hbalock);
3860 spin_lock_irq(&phba->hbalock);
3861 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
3862 spin_unlock_irq(&phba->hbalock);
3864 mempool_free(pmb, phba->mbox_mem_pool);
3866 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
3867 * attention every 100ms for 3 seconds. If we don't get ERATT after
3868 * 3 seconds we still set HBA_ERROR state because the status of the
3869 * board is now undefined.
3871 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3873 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
3875 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3879 del_timer_sync(&psli->mbox_tmo);
3880 if (ha_copy & HA_ERATT) {
3881 writel(HA_ERATT, phba->HAregaddr);
3882 phba->pport->stopped = 1;
3884 spin_lock_irq(&phba->hbalock);
3885 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
3886 psli->mbox_active = NULL;
3887 phba->link_flag &= ~LS_IGNORE_ERATT;
3888 spin_unlock_irq(&phba->hbalock);
3890 lpfc_hba_down_post(phba);
3891 phba->link_state = LPFC_HBA_ERROR;
3893 return ha_copy & HA_ERATT ? 0 : 1;
3897 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
3898 * @phba: Pointer to HBA context object.
3900 * This function resets the HBA by writing HC_INITFF to the control
3901 * register. After the HBA resets, this function resets all the iocb ring
3902 * indices. This function disables PCI layer parity checking during
3904 * This function returns 0 always.
3905 * The caller is not required to hold any locks.
3908 lpfc_sli_brdreset(struct lpfc_hba *phba)
3910 struct lpfc_sli *psli;
3911 struct lpfc_sli_ring *pring;
3918 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3919 "0325 Reset HBA Data: x%x x%x\n",
3920 phba->pport->port_state, psli->sli_flag);
3922 /* perform board reset */
3923 phba->fc_eventTag = 0;
3924 phba->link_events = 0;
3925 phba->pport->fc_myDID = 0;
3926 phba->pport->fc_prevDID = 0;
3928 /* Turn off parity checking and serr during the physical reset */
3929 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
3930 pci_write_config_word(phba->pcidev, PCI_COMMAND,
3932 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
3934 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
3936 /* Now toggle INITFF bit in the Host Control Register */
3937 writel(HC_INITFF, phba->HCregaddr);
3939 readl(phba->HCregaddr); /* flush */
3940 writel(0, phba->HCregaddr);
3941 readl(phba->HCregaddr); /* flush */
3943 /* Restore PCI cmd register */
3944 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
3946 /* Initialize relevant SLI info */
3947 for (i = 0; i < psli->num_rings; i++) {
3948 pring = &psli->ring[i];
3950 pring->sli.sli3.rspidx = 0;
3951 pring->sli.sli3.next_cmdidx = 0;
3952 pring->sli.sli3.local_getidx = 0;
3953 pring->sli.sli3.cmdidx = 0;
3954 pring->missbufcnt = 0;
3957 phba->link_state = LPFC_WARM_START;
3962 * lpfc_sli4_brdreset - Reset a sli-4 HBA
3963 * @phba: Pointer to HBA context object.
3965 * This function resets a SLI4 HBA. This function disables PCI layer parity
3966 * checking during resets the device. The caller is not required to hold
3969 * This function returns 0 always.
3972 lpfc_sli4_brdreset(struct lpfc_hba *phba)
3974 struct lpfc_sli *psli = &phba->sli;
3979 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3980 "0295 Reset HBA Data: x%x x%x\n",
3981 phba->pport->port_state, psli->sli_flag);
3983 /* perform board reset */
3984 phba->fc_eventTag = 0;
3985 phba->link_events = 0;
3986 phba->pport->fc_myDID = 0;
3987 phba->pport->fc_prevDID = 0;
3989 spin_lock_irq(&phba->hbalock);
3990 psli->sli_flag &= ~(LPFC_PROCESS_LA);
3991 phba->fcf.fcf_flag = 0;
3992 spin_unlock_irq(&phba->hbalock);
3994 /* Now physically reset the device */
3995 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3996 "0389 Performing PCI function reset!\n");
3998 /* Turn off parity checking and serr during the physical reset */
3999 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
4000 pci_write_config_word(phba->pcidev, PCI_COMMAND, (cfg_value &
4001 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4003 /* Perform FCoE PCI function reset before freeing queue memory */
4004 rc = lpfc_pci_function_reset(phba);
4005 lpfc_sli4_queue_destroy(phba);
4007 /* Restore PCI cmd register */
4008 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
4014 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
4015 * @phba: Pointer to HBA context object.
4017 * This function is called in the SLI initialization code path to
4018 * restart the HBA. The caller is not required to hold any lock.
4019 * This function writes MBX_RESTART mailbox command to the SLIM and
4020 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
4021 * function to free any pending commands. The function enables
4022 * POST only during the first initialization. The function returns zero.
4023 * The function does not guarantee completion of MBX_RESTART mailbox
4024 * command before the return of this function.
4027 lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
4030 struct lpfc_sli *psli;
4031 volatile uint32_t word0;
4032 void __iomem *to_slim;
4033 uint32_t hba_aer_enabled;
4035 spin_lock_irq(&phba->hbalock);
4037 /* Take PCIe device Advanced Error Reporting (AER) state */
4038 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4043 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4044 "0337 Restart HBA Data: x%x x%x\n",
4045 phba->pport->port_state, psli->sli_flag);
4048 mb = (MAILBOX_t *) &word0;
4049 mb->mbxCommand = MBX_RESTART;
4052 lpfc_reset_barrier(phba);
4054 to_slim = phba->MBslimaddr;
4055 writel(*(uint32_t *) mb, to_slim);
4056 readl(to_slim); /* flush */
4058 /* Only skip post after fc_ffinit is completed */
4059 if (phba->pport->port_state)
4060 word0 = 1; /* This is really setting up word1 */
4062 word0 = 0; /* This is really setting up word1 */
4063 to_slim = phba->MBslimaddr + sizeof (uint32_t);
4064 writel(*(uint32_t *) mb, to_slim);
4065 readl(to_slim); /* flush */
4067 lpfc_sli_brdreset(phba);
4068 phba->pport->stopped = 0;
4069 phba->link_state = LPFC_INIT_START;
4071 spin_unlock_irq(&phba->hbalock);
4073 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4074 psli->stats_start = get_seconds();
4076 /* Give the INITFF and Post time to settle. */
4079 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4080 if (hba_aer_enabled)
4081 pci_disable_pcie_error_reporting(phba->pcidev);
4083 lpfc_hba_down_post(phba);
4089 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
4090 * @phba: Pointer to HBA context object.
4092 * This function is called in the SLI initialization code path to restart
4093 * a SLI4 HBA. The caller is not required to hold any lock.
4094 * At the end of the function, it calls lpfc_hba_down_post function to
4095 * free any pending commands.
4098 lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
4100 struct lpfc_sli *psli = &phba->sli;
4101 uint32_t hba_aer_enabled;
4105 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4106 "0296 Restart HBA Data: x%x x%x\n",
4107 phba->pport->port_state, psli->sli_flag);
4109 /* Take PCIe device Advanced Error Reporting (AER) state */
4110 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4112 rc = lpfc_sli4_brdreset(phba);
4114 spin_lock_irq(&phba->hbalock);
4115 phba->pport->stopped = 0;
4116 phba->link_state = LPFC_INIT_START;
4118 spin_unlock_irq(&phba->hbalock);
4120 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4121 psli->stats_start = get_seconds();
4123 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4124 if (hba_aer_enabled)
4125 pci_disable_pcie_error_reporting(phba->pcidev);
4127 lpfc_hba_down_post(phba);
4133 * lpfc_sli_brdrestart - Wrapper func for restarting hba
4134 * @phba: Pointer to HBA context object.
4136 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
4137 * API jump table function pointer from the lpfc_hba struct.
4140 lpfc_sli_brdrestart(struct lpfc_hba *phba)
4142 return phba->lpfc_sli_brdrestart(phba);
4146 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
4147 * @phba: Pointer to HBA context object.
4149 * This function is called after a HBA restart to wait for successful
4150 * restart of the HBA. Successful restart of the HBA is indicated by
4151 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
4152 * iteration, the function will restart the HBA again. The function returns
4153 * zero if HBA successfully restarted else returns negative error code.
4156 lpfc_sli_chipset_init(struct lpfc_hba *phba)
4158 uint32_t status, i = 0;
4160 /* Read the HBA Host Status Register */
4161 if (lpfc_readl(phba->HSregaddr, &status))
4164 /* Check status register to see what current state is */
4166 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
4168 /* Check every 10ms for 10 retries, then every 100ms for 90
4169 * retries, then every 1 sec for 50 retires for a total of
4170 * ~60 seconds before reset the board again and check every
4171 * 1 sec for 50 retries. The up to 60 seconds before the
4172 * board ready is required by the Falcon FIPS zeroization
4173 * complete, and any reset the board in between shall cause
4174 * restart of zeroization, further delay the board ready.
4177 /* Adapter failed to init, timeout, status reg
4179 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4180 "0436 Adapter failed to init, "
4181 "timeout, status reg x%x, "
4182 "FW Data: A8 x%x AC x%x\n", status,
4183 readl(phba->MBslimaddr + 0xa8),
4184 readl(phba->MBslimaddr + 0xac));
4185 phba->link_state = LPFC_HBA_ERROR;
4189 /* Check to see if any errors occurred during init */
4190 if (status & HS_FFERM) {
4191 /* ERROR: During chipset initialization */
4192 /* Adapter failed to init, chipset, status reg
4194 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4195 "0437 Adapter failed to init, "
4196 "chipset, status reg x%x, "
4197 "FW Data: A8 x%x AC x%x\n", status,
4198 readl(phba->MBslimaddr + 0xa8),
4199 readl(phba->MBslimaddr + 0xac));
4200 phba->link_state = LPFC_HBA_ERROR;
4213 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4214 lpfc_sli_brdrestart(phba);
4216 /* Read the HBA Host Status Register */
4217 if (lpfc_readl(phba->HSregaddr, &status))
4221 /* Check to see if any errors occurred during init */
4222 if (status & HS_FFERM) {
4223 /* ERROR: During chipset initialization */
4224 /* Adapter failed to init, chipset, status reg <status> */
4225 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4226 "0438 Adapter failed to init, chipset, "
4228 "FW Data: A8 x%x AC x%x\n", status,
4229 readl(phba->MBslimaddr + 0xa8),
4230 readl(phba->MBslimaddr + 0xac));
4231 phba->link_state = LPFC_HBA_ERROR;
4235 /* Clear all interrupt enable conditions */
4236 writel(0, phba->HCregaddr);
4237 readl(phba->HCregaddr); /* flush */
4239 /* setup host attn register */
4240 writel(0xffffffff, phba->HAregaddr);
4241 readl(phba->HAregaddr); /* flush */
4246 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
4248 * This function calculates and returns the number of HBQs required to be
4252 lpfc_sli_hbq_count(void)
4254 return ARRAY_SIZE(lpfc_hbq_defs);
4258 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
4260 * This function adds the number of hbq entries in every HBQ to get
4261 * the total number of hbq entries required for the HBA and returns
4265 lpfc_sli_hbq_entry_count(void)
4267 int hbq_count = lpfc_sli_hbq_count();
4271 for (i = 0; i < hbq_count; ++i)
4272 count += lpfc_hbq_defs[i]->entry_count;
4277 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
4279 * This function calculates amount of memory required for all hbq entries
4280 * to be configured and returns the total memory required.
4283 lpfc_sli_hbq_size(void)
4285 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
4289 * lpfc_sli_hbq_setup - configure and initialize HBQs
4290 * @phba: Pointer to HBA context object.
4292 * This function is called during the SLI initialization to configure
4293 * all the HBQs and post buffers to the HBQ. The caller is not
4294 * required to hold any locks. This function will return zero if successful
4295 * else it will return negative error code.
4298 lpfc_sli_hbq_setup(struct lpfc_hba *phba)
4300 int hbq_count = lpfc_sli_hbq_count();
4304 uint32_t hbq_entry_index;
4306 /* Get a Mailbox buffer to setup mailbox
4307 * commands for HBA initialization
4309 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4316 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
4317 phba->link_state = LPFC_INIT_MBX_CMDS;
4318 phba->hbq_in_use = 1;
4320 hbq_entry_index = 0;
4321 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
4322 phba->hbqs[hbqno].next_hbqPutIdx = 0;
4323 phba->hbqs[hbqno].hbqPutIdx = 0;
4324 phba->hbqs[hbqno].local_hbqGetIdx = 0;
4325 phba->hbqs[hbqno].entry_count =
4326 lpfc_hbq_defs[hbqno]->entry_count;
4327 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
4328 hbq_entry_index, pmb);
4329 hbq_entry_index += phba->hbqs[hbqno].entry_count;
4331 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
4332 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
4333 mbxStatus <status>, ring <num> */
4335 lpfc_printf_log(phba, KERN_ERR,
4336 LOG_SLI | LOG_VPORT,
4337 "1805 Adapter failed to init. "
4338 "Data: x%x x%x x%x\n",
4340 pmbox->mbxStatus, hbqno);
4342 phba->link_state = LPFC_HBA_ERROR;
4343 mempool_free(pmb, phba->mbox_mem_pool);
4347 phba->hbq_count = hbq_count;
4349 mempool_free(pmb, phba->mbox_mem_pool);
4351 /* Initially populate or replenish the HBQs */
4352 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
4353 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
4358 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
4359 * @phba: Pointer to HBA context object.
4361 * This function is called during the SLI initialization to configure
4362 * all the HBQs and post buffers to the HBQ. The caller is not
4363 * required to hold any locks. This function will return zero if successful
4364 * else it will return negative error code.
4367 lpfc_sli4_rb_setup(struct lpfc_hba *phba)
4369 phba->hbq_in_use = 1;
4370 phba->hbqs[0].entry_count = lpfc_hbq_defs[0]->entry_count;
4371 phba->hbq_count = 1;
4372 /* Initially populate or replenish the HBQs */
4373 lpfc_sli_hbqbuf_init_hbqs(phba, 0);
4378 * lpfc_sli_config_port - Issue config port mailbox command
4379 * @phba: Pointer to HBA context object.
4380 * @sli_mode: sli mode - 2/3
4382 * This function is called by the sli intialization code path
4383 * to issue config_port mailbox command. This function restarts the
4384 * HBA firmware and issues a config_port mailbox command to configure
4385 * the SLI interface in the sli mode specified by sli_mode
4386 * variable. The caller is not required to hold any locks.
4387 * The function returns 0 if successful, else returns negative error
4391 lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
4394 uint32_t resetcount = 0, rc = 0, done = 0;
4396 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4398 phba->link_state = LPFC_HBA_ERROR;
4402 phba->sli_rev = sli_mode;
4403 while (resetcount < 2 && !done) {
4404 spin_lock_irq(&phba->hbalock);
4405 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
4406 spin_unlock_irq(&phba->hbalock);
4407 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4408 lpfc_sli_brdrestart(phba);
4409 rc = lpfc_sli_chipset_init(phba);
4413 spin_lock_irq(&phba->hbalock);
4414 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4415 spin_unlock_irq(&phba->hbalock);
4418 /* Call pre CONFIG_PORT mailbox command initialization. A
4419 * value of 0 means the call was successful. Any other
4420 * nonzero value is a failure, but if ERESTART is returned,
4421 * the driver may reset the HBA and try again.
4423 rc = lpfc_config_port_prep(phba);
4424 if (rc == -ERESTART) {
4425 phba->link_state = LPFC_LINK_UNKNOWN;
4430 phba->link_state = LPFC_INIT_MBX_CMDS;
4431 lpfc_config_port(phba, pmb);
4432 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
4433 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
4434 LPFC_SLI3_HBQ_ENABLED |
4435 LPFC_SLI3_CRP_ENABLED |
4436 LPFC_SLI3_BG_ENABLED |
4437 LPFC_SLI3_DSS_ENABLED);
4438 if (rc != MBX_SUCCESS) {
4439 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4440 "0442 Adapter failed to init, mbxCmd x%x "
4441 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
4442 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
4443 spin_lock_irq(&phba->hbalock);
4444 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
4445 spin_unlock_irq(&phba->hbalock);
4448 /* Allow asynchronous mailbox command to go through */
4449 spin_lock_irq(&phba->hbalock);
4450 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
4451 spin_unlock_irq(&phba->hbalock);
4454 if ((pmb->u.mb.un.varCfgPort.casabt == 1) &&
4455 (pmb->u.mb.un.varCfgPort.gasabt == 0))
4456 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4457 "3110 Port did not grant ASABT\n");
4462 goto do_prep_failed;
4464 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
4465 if (!pmb->u.mb.un.varCfgPort.cMA) {
4467 goto do_prep_failed;
4469 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
4470 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
4471 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
4472 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
4473 phba->max_vpi : phba->max_vports;
4477 phba->fips_level = 0;
4478 phba->fips_spec_rev = 0;
4479 if (pmb->u.mb.un.varCfgPort.gdss) {
4480 phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
4481 phba->fips_level = pmb->u.mb.un.varCfgPort.fips_level;
4482 phba->fips_spec_rev = pmb->u.mb.un.varCfgPort.fips_rev;
4483 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4484 "2850 Security Crypto Active. FIPS x%d "
4486 phba->fips_level, phba->fips_spec_rev);
4488 if (pmb->u.mb.un.varCfgPort.sec_err) {
4489 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4490 "2856 Config Port Security Crypto "
4492 pmb->u.mb.un.varCfgPort.sec_err);
4494 if (pmb->u.mb.un.varCfgPort.gerbm)
4495 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
4496 if (pmb->u.mb.un.varCfgPort.gcrp)
4497 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
4499 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
4500 phba->port_gp = phba->mbox->us.s3_pgp.port;
4502 if (phba->cfg_enable_bg) {
4503 if (pmb->u.mb.un.varCfgPort.gbg)
4504 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
4506 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4507 "0443 Adapter did not grant "
4511 phba->hbq_get = NULL;
4512 phba->port_gp = phba->mbox->us.s2.port;
4516 mempool_free(pmb, phba->mbox_mem_pool);
4522 * lpfc_sli_hba_setup - SLI intialization function
4523 * @phba: Pointer to HBA context object.
4525 * This function is the main SLI intialization function. This function
4526 * is called by the HBA intialization code, HBA reset code and HBA
4527 * error attention handler code. Caller is not required to hold any
4528 * locks. This function issues config_port mailbox command to configure
4529 * the SLI, setup iocb rings and HBQ rings. In the end the function
4530 * calls the config_port_post function to issue init_link mailbox
4531 * command and to start the discovery. The function will return zero
4532 * if successful, else it will return negative error code.
4535 lpfc_sli_hba_setup(struct lpfc_hba *phba)
4541 switch (lpfc_sli_mode) {
4543 if (phba->cfg_enable_npiv) {
4544 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4545 "1824 NPIV enabled: Override lpfc_sli_mode "
4546 "parameter (%d) to auto (0).\n",
4556 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4557 "1819 Unrecognized lpfc_sli_mode "
4558 "parameter: %d.\n", lpfc_sli_mode);
4563 rc = lpfc_sli_config_port(phba, mode);
4565 if (rc && lpfc_sli_mode == 3)
4566 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4567 "1820 Unable to select SLI-3. "
4568 "Not supported by adapter.\n");
4569 if (rc && mode != 2)
4570 rc = lpfc_sli_config_port(phba, 2);
4572 goto lpfc_sli_hba_setup_error;
4574 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4575 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
4576 rc = pci_enable_pcie_error_reporting(phba->pcidev);
4578 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4579 "2709 This device supports "
4580 "Advanced Error Reporting (AER)\n");
4581 spin_lock_irq(&phba->hbalock);
4582 phba->hba_flag |= HBA_AER_ENABLED;
4583 spin_unlock_irq(&phba->hbalock);
4585 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4586 "2708 This device does not support "
4587 "Advanced Error Reporting (AER)\n");
4588 phba->cfg_aer_support = 0;
4592 if (phba->sli_rev == 3) {
4593 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
4594 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
4596 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
4597 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
4598 phba->sli3_options = 0;
4601 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4602 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
4603 phba->sli_rev, phba->max_vpi);
4604 rc = lpfc_sli_ring_map(phba);
4607 goto lpfc_sli_hba_setup_error;
4609 /* Initialize VPIs. */
4610 if (phba->sli_rev == LPFC_SLI_REV3) {
4612 * The VPI bitmask and physical ID array are allocated
4613 * and initialized once only - at driver load. A port
4614 * reset doesn't need to reinitialize this memory.
4616 if ((phba->vpi_bmask == NULL) && (phba->vpi_ids == NULL)) {
4617 longs = (phba->max_vpi + BITS_PER_LONG) / BITS_PER_LONG;
4618 phba->vpi_bmask = kzalloc(longs * sizeof(unsigned long),
4620 if (!phba->vpi_bmask) {
4622 goto lpfc_sli_hba_setup_error;
4625 phba->vpi_ids = kzalloc(
4626 (phba->max_vpi+1) * sizeof(uint16_t),
4628 if (!phba->vpi_ids) {
4629 kfree(phba->vpi_bmask);
4631 goto lpfc_sli_hba_setup_error;
4633 for (i = 0; i < phba->max_vpi; i++)
4634 phba->vpi_ids[i] = i;
4639 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
4640 rc = lpfc_sli_hbq_setup(phba);
4642 goto lpfc_sli_hba_setup_error;
4644 spin_lock_irq(&phba->hbalock);
4645 phba->sli.sli_flag |= LPFC_PROCESS_LA;
4646 spin_unlock_irq(&phba->hbalock);
4648 rc = lpfc_config_port_post(phba);
4650 goto lpfc_sli_hba_setup_error;
4654 lpfc_sli_hba_setup_error:
4655 phba->link_state = LPFC_HBA_ERROR;
4656 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4657 "0445 Firmware initialization failed\n");
4662 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
4663 * @phba: Pointer to HBA context object.
4664 * @mboxq: mailbox pointer.
4665 * This function issue a dump mailbox command to read config region
4666 * 23 and parse the records in the region and populate driver
4670 lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba)
4672 LPFC_MBOXQ_t *mboxq;
4673 struct lpfc_dmabuf *mp;
4674 struct lpfc_mqe *mqe;
4675 uint32_t data_length;
4678 /* Program the default value of vlan_id and fc_map */
4679 phba->valid_vlan = 0;
4680 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4681 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4682 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4684 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4688 mqe = &mboxq->u.mqe;
4689 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq)) {
4691 goto out_free_mboxq;
4694 mp = (struct lpfc_dmabuf *) mboxq->context1;
4695 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4697 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4698 "(%d):2571 Mailbox cmd x%x Status x%x "
4699 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4700 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4701 "CQ: x%x x%x x%x x%x\n",
4702 mboxq->vport ? mboxq->vport->vpi : 0,
4703 bf_get(lpfc_mqe_command, mqe),
4704 bf_get(lpfc_mqe_status, mqe),
4705 mqe->un.mb_words[0], mqe->un.mb_words[1],
4706 mqe->un.mb_words[2], mqe->un.mb_words[3],
4707 mqe->un.mb_words[4], mqe->un.mb_words[5],
4708 mqe->un.mb_words[6], mqe->un.mb_words[7],
4709 mqe->un.mb_words[8], mqe->un.mb_words[9],
4710 mqe->un.mb_words[10], mqe->un.mb_words[11],
4711 mqe->un.mb_words[12], mqe->un.mb_words[13],
4712 mqe->un.mb_words[14], mqe->un.mb_words[15],
4713 mqe->un.mb_words[16], mqe->un.mb_words[50],
4715 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
4716 mboxq->mcqe.trailer);
4719 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4722 goto out_free_mboxq;
4724 data_length = mqe->un.mb_words[5];
4725 if (data_length > DMP_RGN23_SIZE) {
4726 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4729 goto out_free_mboxq;
4732 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
4733 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4738 mempool_free(mboxq, phba->mbox_mem_pool);
4743 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
4744 * @phba: pointer to lpfc hba data structure.
4745 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
4746 * @vpd: pointer to the memory to hold resulting port vpd data.
4747 * @vpd_size: On input, the number of bytes allocated to @vpd.
4748 * On output, the number of data bytes in @vpd.
4750 * This routine executes a READ_REV SLI4 mailbox command. In
4751 * addition, this routine gets the port vpd data.
4755 * -ENOMEM - could not allocated memory.
4758 lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
4759 uint8_t *vpd, uint32_t *vpd_size)
4763 struct lpfc_dmabuf *dmabuf;
4764 struct lpfc_mqe *mqe;
4766 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4771 * Get a DMA buffer for the vpd data resulting from the READ_REV
4774 dma_size = *vpd_size;
4775 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4779 if (!dmabuf->virt) {
4783 memset(dmabuf->virt, 0, dma_size);
4786 * The SLI4 implementation of READ_REV conflicts at word1,
4787 * bits 31:16 and SLI4 adds vpd functionality not present
4788 * in SLI3. This code corrects the conflicts.
4790 lpfc_read_rev(phba, mboxq);
4791 mqe = &mboxq->u.mqe;
4792 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
4793 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
4794 mqe->un.read_rev.word1 &= 0x0000FFFF;
4795 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
4796 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
4798 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4800 dma_free_coherent(&phba->pcidev->dev, dma_size,
4801 dmabuf->virt, dmabuf->phys);
4807 * The available vpd length cannot be bigger than the
4808 * DMA buffer passed to the port. Catch the less than
4809 * case and update the caller's size.
4811 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
4812 *vpd_size = mqe->un.read_rev.avail_vpd_len;
4814 memcpy(vpd, dmabuf->virt, *vpd_size);
4816 dma_free_coherent(&phba->pcidev->dev, dma_size,
4817 dmabuf->virt, dmabuf->phys);
4823 * lpfc_sli4_retrieve_pport_name - Retrieve SLI4 device physical port name
4824 * @phba: pointer to lpfc hba data structure.
4826 * This routine retrieves SLI4 device physical port name this PCI function
4831 * otherwise - failed to retrieve physical port name
4834 lpfc_sli4_retrieve_pport_name(struct lpfc_hba *phba)
4836 LPFC_MBOXQ_t *mboxq;
4837 struct lpfc_mbx_get_cntl_attributes *mbx_cntl_attr;
4838 struct lpfc_controller_attribute *cntl_attr;
4839 struct lpfc_mbx_get_port_name *get_port_name;
4840 void *virtaddr = NULL;
4841 uint32_t alloclen, reqlen;
4842 uint32_t shdr_status, shdr_add_status;
4843 union lpfc_sli4_cfg_shdr *shdr;
4844 char cport_name = 0;
4847 /* We assume nothing at this point */
4848 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
4849 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_NON;
4851 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4854 /* obtain link type and link number via READ_CONFIG */
4855 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
4856 lpfc_sli4_read_config(phba);
4857 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL)
4858 goto retrieve_ppname;
4860 /* obtain link type and link number via COMMON_GET_CNTL_ATTRIBUTES */
4861 reqlen = sizeof(struct lpfc_mbx_get_cntl_attributes);
4862 alloclen = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
4863 LPFC_MBOX_OPCODE_GET_CNTL_ATTRIBUTES, reqlen,
4864 LPFC_SLI4_MBX_NEMBED);
4865 if (alloclen < reqlen) {
4866 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4867 "3084 Allocated DMA memory size (%d) is "
4868 "less than the requested DMA memory size "
4869 "(%d)\n", alloclen, reqlen);
4871 goto out_free_mboxq;
4873 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4874 virtaddr = mboxq->sge_array->addr[0];
4875 mbx_cntl_attr = (struct lpfc_mbx_get_cntl_attributes *)virtaddr;
4876 shdr = &mbx_cntl_attr->cfg_shdr;
4877 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
4878 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
4879 if (shdr_status || shdr_add_status || rc) {
4880 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4881 "3085 Mailbox x%x (x%x/x%x) failed, "
4882 "rc:x%x, status:x%x, add_status:x%x\n",
4883 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4884 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
4885 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
4886 rc, shdr_status, shdr_add_status);
4888 goto out_free_mboxq;
4890 cntl_attr = &mbx_cntl_attr->cntl_attr;
4891 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
4892 phba->sli4_hba.lnk_info.lnk_tp =
4893 bf_get(lpfc_cntl_attr_lnk_type, cntl_attr);
4894 phba->sli4_hba.lnk_info.lnk_no =
4895 bf_get(lpfc_cntl_attr_lnk_numb, cntl_attr);
4896 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4897 "3086 lnk_type:%d, lnk_numb:%d\n",
4898 phba->sli4_hba.lnk_info.lnk_tp,
4899 phba->sli4_hba.lnk_info.lnk_no);
4902 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
4903 LPFC_MBOX_OPCODE_GET_PORT_NAME,
4904 sizeof(struct lpfc_mbx_get_port_name) -
4905 sizeof(struct lpfc_sli4_cfg_mhdr),
4906 LPFC_SLI4_MBX_EMBED);
4907 get_port_name = &mboxq->u.mqe.un.get_port_name;
4908 shdr = (union lpfc_sli4_cfg_shdr *)&get_port_name->header.cfg_shdr;
4909 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_OPCODE_VERSION_1);
4910 bf_set(lpfc_mbx_get_port_name_lnk_type, &get_port_name->u.request,
4911 phba->sli4_hba.lnk_info.lnk_tp);
4912 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4913 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
4914 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
4915 if (shdr_status || shdr_add_status || rc) {
4916 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4917 "3087 Mailbox x%x (x%x/x%x) failed: "
4918 "rc:x%x, status:x%x, add_status:x%x\n",
4919 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4920 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
4921 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
4922 rc, shdr_status, shdr_add_status);
4924 goto out_free_mboxq;
4926 switch (phba->sli4_hba.lnk_info.lnk_no) {
4927 case LPFC_LINK_NUMBER_0:
4928 cport_name = bf_get(lpfc_mbx_get_port_name_name0,
4929 &get_port_name->u.response);
4930 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4932 case LPFC_LINK_NUMBER_1:
4933 cport_name = bf_get(lpfc_mbx_get_port_name_name1,
4934 &get_port_name->u.response);
4935 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4937 case LPFC_LINK_NUMBER_2:
4938 cport_name = bf_get(lpfc_mbx_get_port_name_name2,
4939 &get_port_name->u.response);
4940 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4942 case LPFC_LINK_NUMBER_3:
4943 cport_name = bf_get(lpfc_mbx_get_port_name_name3,
4944 &get_port_name->u.response);
4945 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4951 if (phba->sli4_hba.pport_name_sta == LPFC_SLI4_PPNAME_GET) {
4952 phba->Port[0] = cport_name;
4953 phba->Port[1] = '\0';
4954 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4955 "3091 SLI get port name: %s\n", phba->Port);
4959 if (rc != MBX_TIMEOUT) {
4960 if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
4961 lpfc_sli4_mbox_cmd_free(phba, mboxq);
4963 mempool_free(mboxq, phba->mbox_mem_pool);
4969 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
4970 * @phba: pointer to lpfc hba data structure.
4972 * This routine is called to explicitly arm the SLI4 device's completion and
4976 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
4980 lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM);
4981 lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM);
4983 if (phba->sli4_hba.fcp_cq) {
4985 lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[fcp_eqidx],
4987 } while (++fcp_eqidx < phba->cfg_fcp_io_channel);
4989 if (phba->sli4_hba.hba_eq) {
4990 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel;
4992 lpfc_sli4_eq_release(phba->sli4_hba.hba_eq[fcp_eqidx],
4998 * lpfc_sli4_get_avail_extnt_rsrc - Get available resource extent count.
4999 * @phba: Pointer to HBA context object.
5000 * @type: The resource extent type.
5001 * @extnt_count: buffer to hold port available extent count.
5002 * @extnt_size: buffer to hold element count per extent.
5004 * This function calls the port and retrievs the number of available
5005 * extents and their size for a particular extent type.
5007 * Returns: 0 if successful. Nonzero otherwise.
5010 lpfc_sli4_get_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type,
5011 uint16_t *extnt_count, uint16_t *extnt_size)
5016 struct lpfc_mbx_get_rsrc_extent_info *rsrc_info;
5019 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5023 /* Find out how many extents are available for this resource type */
5024 length = (sizeof(struct lpfc_mbx_get_rsrc_extent_info) -
5025 sizeof(struct lpfc_sli4_cfg_mhdr));
5026 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5027 LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO,
5028 length, LPFC_SLI4_MBX_EMBED);
5030 /* Send an extents count of 0 - the GET doesn't use it. */
5031 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5032 LPFC_SLI4_MBX_EMBED);
5038 if (!phba->sli4_hba.intr_enable)
5039 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5041 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5042 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5049 rsrc_info = &mbox->u.mqe.un.rsrc_extent_info;
5050 if (bf_get(lpfc_mbox_hdr_status,
5051 &rsrc_info->header.cfg_shdr.response)) {
5052 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5053 "2930 Failed to get resource extents "
5054 "Status 0x%x Add'l Status 0x%x\n",
5055 bf_get(lpfc_mbox_hdr_status,
5056 &rsrc_info->header.cfg_shdr.response),
5057 bf_get(lpfc_mbox_hdr_add_status,
5058 &rsrc_info->header.cfg_shdr.response));
5063 *extnt_count = bf_get(lpfc_mbx_get_rsrc_extent_info_cnt,
5065 *extnt_size = bf_get(lpfc_mbx_get_rsrc_extent_info_size,
5068 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5069 "3162 Retrieved extents type-%d from port: count:%d, "
5070 "size:%d\n", type, *extnt_count, *extnt_size);
5073 mempool_free(mbox, phba->mbox_mem_pool);
5078 * lpfc_sli4_chk_avail_extnt_rsrc - Check for available SLI4 resource extents.
5079 * @phba: Pointer to HBA context object.
5080 * @type: The extent type to check.
5082 * This function reads the current available extents from the port and checks
5083 * if the extent count or extent size has changed since the last access.
5084 * Callers use this routine post port reset to understand if there is a
5085 * extent reprovisioning requirement.
5088 * -Error: error indicates problem.
5089 * 1: Extent count or size has changed.
5093 lpfc_sli4_chk_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type)
5095 uint16_t curr_ext_cnt, rsrc_ext_cnt;
5096 uint16_t size_diff, rsrc_ext_size;
5098 struct lpfc_rsrc_blks *rsrc_entry;
5099 struct list_head *rsrc_blk_list = NULL;
5103 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5110 case LPFC_RSC_TYPE_FCOE_RPI:
5111 rsrc_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5113 case LPFC_RSC_TYPE_FCOE_VPI:
5114 rsrc_blk_list = &phba->lpfc_vpi_blk_list;
5116 case LPFC_RSC_TYPE_FCOE_XRI:
5117 rsrc_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5119 case LPFC_RSC_TYPE_FCOE_VFI:
5120 rsrc_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5126 list_for_each_entry(rsrc_entry, rsrc_blk_list, list) {
5128 if (rsrc_entry->rsrc_size != rsrc_ext_size)
5132 if (curr_ext_cnt != rsrc_ext_cnt || size_diff != 0)
5139 * lpfc_sli4_cfg_post_extnts -
5140 * @phba: Pointer to HBA context object.
5141 * @extnt_cnt - number of available extents.
5142 * @type - the extent type (rpi, xri, vfi, vpi).
5143 * @emb - buffer to hold either MBX_EMBED or MBX_NEMBED operation.
5144 * @mbox - pointer to the caller's allocated mailbox structure.
5146 * This function executes the extents allocation request. It also
5147 * takes care of the amount of memory needed to allocate or get the
5148 * allocated extents. It is the caller's responsibility to evaluate
5152 * -Error: Error value describes the condition found.
5156 lpfc_sli4_cfg_post_extnts(struct lpfc_hba *phba, uint16_t extnt_cnt,
5157 uint16_t type, bool *emb, LPFC_MBOXQ_t *mbox)
5162 uint32_t alloc_len, mbox_tmo;
5164 /* Calculate the total requested length of the dma memory */
5165 req_len = extnt_cnt * sizeof(uint16_t);
5168 * Calculate the size of an embedded mailbox. The uint32_t
5169 * accounts for extents-specific word.
5171 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
5175 * Presume the allocation and response will fit into an embedded
5176 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5178 *emb = LPFC_SLI4_MBX_EMBED;
5179 if (req_len > emb_len) {
5180 req_len = extnt_cnt * sizeof(uint16_t) +
5181 sizeof(union lpfc_sli4_cfg_shdr) +
5183 *emb = LPFC_SLI4_MBX_NEMBED;
5186 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5187 LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT,
5189 if (alloc_len < req_len) {
5190 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5191 "2982 Allocated DMA memory size (x%x) is "
5192 "less than the requested DMA memory "
5193 "size (x%x)\n", alloc_len, req_len);
5196 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, extnt_cnt, type, *emb);
5200 if (!phba->sli4_hba.intr_enable)
5201 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5203 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5204 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5213 * lpfc_sli4_alloc_extent - Allocate an SLI4 resource extent.
5214 * @phba: Pointer to HBA context object.
5215 * @type: The resource extent type to allocate.
5217 * This function allocates the number of elements for the specified
5221 lpfc_sli4_alloc_extent(struct lpfc_hba *phba, uint16_t type)
5224 uint16_t rsrc_id_cnt, rsrc_cnt, rsrc_size;
5225 uint16_t rsrc_id, rsrc_start, j, k;
5228 unsigned long longs;
5229 unsigned long *bmask;
5230 struct lpfc_rsrc_blks *rsrc_blks;
5233 struct lpfc_id_range *id_array = NULL;
5234 void *virtaddr = NULL;
5235 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5236 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5237 struct list_head *ext_blk_list;
5239 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5245 if ((rsrc_cnt == 0) || (rsrc_size == 0)) {
5246 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5247 "3009 No available Resource Extents "
5248 "for resource type 0x%x: Count: 0x%x, "
5249 "Size 0x%x\n", type, rsrc_cnt,
5254 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_INIT | LOG_SLI,
5255 "2903 Post resource extents type-0x%x: "
5256 "count:%d, size %d\n", type, rsrc_cnt, rsrc_size);
5258 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5262 rc = lpfc_sli4_cfg_post_extnts(phba, rsrc_cnt, type, &emb, mbox);
5269 * Figure out where the response is located. Then get local pointers
5270 * to the response data. The port does not guarantee to respond to
5271 * all extents counts request so update the local variable with the
5272 * allocated count from the port.
5274 if (emb == LPFC_SLI4_MBX_EMBED) {
5275 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
5276 id_array = &rsrc_ext->u.rsp.id[0];
5277 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
5279 virtaddr = mbox->sge_array->addr[0];
5280 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
5281 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
5282 id_array = &n_rsrc->id;
5285 longs = ((rsrc_cnt * rsrc_size) + BITS_PER_LONG - 1) / BITS_PER_LONG;
5286 rsrc_id_cnt = rsrc_cnt * rsrc_size;
5289 * Based on the resource size and count, correct the base and max
5292 length = sizeof(struct lpfc_rsrc_blks);
5294 case LPFC_RSC_TYPE_FCOE_RPI:
5295 phba->sli4_hba.rpi_bmask = kzalloc(longs *
5296 sizeof(unsigned long),
5298 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5302 phba->sli4_hba.rpi_ids = kzalloc(rsrc_id_cnt *
5305 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5306 kfree(phba->sli4_hba.rpi_bmask);
5312 * The next_rpi was initialized with the maximum available
5313 * count but the port may allocate a smaller number. Catch
5314 * that case and update the next_rpi.
5316 phba->sli4_hba.next_rpi = rsrc_id_cnt;
5318 /* Initialize local ptrs for common extent processing later. */
5319 bmask = phba->sli4_hba.rpi_bmask;
5320 ids = phba->sli4_hba.rpi_ids;
5321 ext_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5323 case LPFC_RSC_TYPE_FCOE_VPI:
5324 phba->vpi_bmask = kzalloc(longs *
5325 sizeof(unsigned long),
5327 if (unlikely(!phba->vpi_bmask)) {
5331 phba->vpi_ids = kzalloc(rsrc_id_cnt *
5334 if (unlikely(!phba->vpi_ids)) {
5335 kfree(phba->vpi_bmask);
5340 /* Initialize local ptrs for common extent processing later. */
5341 bmask = phba->vpi_bmask;
5342 ids = phba->vpi_ids;
5343 ext_blk_list = &phba->lpfc_vpi_blk_list;
5345 case LPFC_RSC_TYPE_FCOE_XRI:
5346 phba->sli4_hba.xri_bmask = kzalloc(longs *
5347 sizeof(unsigned long),
5349 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5353 phba->sli4_hba.max_cfg_param.xri_used = 0;
5354 phba->sli4_hba.xri_ids = kzalloc(rsrc_id_cnt *
5357 if (unlikely(!phba->sli4_hba.xri_ids)) {
5358 kfree(phba->sli4_hba.xri_bmask);
5363 /* Initialize local ptrs for common extent processing later. */
5364 bmask = phba->sli4_hba.xri_bmask;
5365 ids = phba->sli4_hba.xri_ids;
5366 ext_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5368 case LPFC_RSC_TYPE_FCOE_VFI:
5369 phba->sli4_hba.vfi_bmask = kzalloc(longs *
5370 sizeof(unsigned long),
5372 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5376 phba->sli4_hba.vfi_ids = kzalloc(rsrc_id_cnt *
5379 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5380 kfree(phba->sli4_hba.vfi_bmask);
5385 /* Initialize local ptrs for common extent processing later. */
5386 bmask = phba->sli4_hba.vfi_bmask;
5387 ids = phba->sli4_hba.vfi_ids;
5388 ext_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5391 /* Unsupported Opcode. Fail call. */
5395 ext_blk_list = NULL;
5400 * Complete initializing the extent configuration with the
5401 * allocated ids assigned to this function. The bitmask serves
5402 * as an index into the array and manages the available ids. The
5403 * array just stores the ids communicated to the port via the wqes.
5405 for (i = 0, j = 0, k = 0; i < rsrc_cnt; i++) {
5407 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_0,
5410 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_1,
5413 rsrc_blks = kzalloc(length, GFP_KERNEL);
5414 if (unlikely(!rsrc_blks)) {
5420 rsrc_blks->rsrc_start = rsrc_id;
5421 rsrc_blks->rsrc_size = rsrc_size;
5422 list_add_tail(&rsrc_blks->list, ext_blk_list);
5423 rsrc_start = rsrc_id;
5424 if ((type == LPFC_RSC_TYPE_FCOE_XRI) && (j == 0))
5425 phba->sli4_hba.scsi_xri_start = rsrc_start +
5426 lpfc_sli4_get_els_iocb_cnt(phba);
5428 while (rsrc_id < (rsrc_start + rsrc_size)) {
5433 /* Entire word processed. Get next word.*/
5438 lpfc_sli4_mbox_cmd_free(phba, mbox);
5443 * lpfc_sli4_dealloc_extent - Deallocate an SLI4 resource extent.
5444 * @phba: Pointer to HBA context object.
5445 * @type: the extent's type.
5447 * This function deallocates all extents of a particular resource type.
5448 * SLI4 does not allow for deallocating a particular extent range. It
5449 * is the caller's responsibility to release all kernel memory resources.
5452 lpfc_sli4_dealloc_extent(struct lpfc_hba *phba, uint16_t type)
5455 uint32_t length, mbox_tmo = 0;
5457 struct lpfc_mbx_dealloc_rsrc_extents *dealloc_rsrc;
5458 struct lpfc_rsrc_blks *rsrc_blk, *rsrc_blk_next;
5460 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5465 * This function sends an embedded mailbox because it only sends the
5466 * the resource type. All extents of this type are released by the
5469 length = (sizeof(struct lpfc_mbx_dealloc_rsrc_extents) -
5470 sizeof(struct lpfc_sli4_cfg_mhdr));
5471 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5472 LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT,
5473 length, LPFC_SLI4_MBX_EMBED);
5475 /* Send an extents count of 0 - the dealloc doesn't use it. */
5476 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5477 LPFC_SLI4_MBX_EMBED);
5482 if (!phba->sli4_hba.intr_enable)
5483 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5485 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5486 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5493 dealloc_rsrc = &mbox->u.mqe.un.dealloc_rsrc_extents;
5494 if (bf_get(lpfc_mbox_hdr_status,
5495 &dealloc_rsrc->header.cfg_shdr.response)) {
5496 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5497 "2919 Failed to release resource extents "
5498 "for type %d - Status 0x%x Add'l Status 0x%x. "
5499 "Resource memory not released.\n",
5501 bf_get(lpfc_mbox_hdr_status,
5502 &dealloc_rsrc->header.cfg_shdr.response),
5503 bf_get(lpfc_mbox_hdr_add_status,
5504 &dealloc_rsrc->header.cfg_shdr.response));
5509 /* Release kernel memory resources for the specific type. */
5511 case LPFC_RSC_TYPE_FCOE_VPI:
5512 kfree(phba->vpi_bmask);
5513 kfree(phba->vpi_ids);
5514 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5515 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5516 &phba->lpfc_vpi_blk_list, list) {
5517 list_del_init(&rsrc_blk->list);
5520 phba->sli4_hba.max_cfg_param.vpi_used = 0;
5522 case LPFC_RSC_TYPE_FCOE_XRI:
5523 kfree(phba->sli4_hba.xri_bmask);
5524 kfree(phba->sli4_hba.xri_ids);
5525 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5526 &phba->sli4_hba.lpfc_xri_blk_list, list) {
5527 list_del_init(&rsrc_blk->list);
5531 case LPFC_RSC_TYPE_FCOE_VFI:
5532 kfree(phba->sli4_hba.vfi_bmask);
5533 kfree(phba->sli4_hba.vfi_ids);
5534 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5535 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5536 &phba->sli4_hba.lpfc_vfi_blk_list, list) {
5537 list_del_init(&rsrc_blk->list);
5541 case LPFC_RSC_TYPE_FCOE_RPI:
5542 /* RPI bitmask and physical id array are cleaned up earlier. */
5543 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5544 &phba->sli4_hba.lpfc_rpi_blk_list, list) {
5545 list_del_init(&rsrc_blk->list);
5553 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5556 mempool_free(mbox, phba->mbox_mem_pool);
5561 * lpfc_sli4_alloc_resource_identifiers - Allocate all SLI4 resource extents.
5562 * @phba: Pointer to HBA context object.
5564 * This function allocates all SLI4 resource identifiers.
5567 lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba *phba)
5569 int i, rc, error = 0;
5570 uint16_t count, base;
5571 unsigned long longs;
5573 if (!phba->sli4_hba.rpi_hdrs_in_use)
5574 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
5575 if (phba->sli4_hba.extents_in_use) {
5577 * The port supports resource extents. The XRI, VPI, VFI, RPI
5578 * resource extent count must be read and allocated before
5579 * provisioning the resource id arrays.
5581 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
5582 LPFC_IDX_RSRC_RDY) {
5584 * Extent-based resources are set - the driver could
5585 * be in a port reset. Figure out if any corrective
5586 * actions need to be taken.
5588 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5589 LPFC_RSC_TYPE_FCOE_VFI);
5592 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5593 LPFC_RSC_TYPE_FCOE_VPI);
5596 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5597 LPFC_RSC_TYPE_FCOE_XRI);
5600 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5601 LPFC_RSC_TYPE_FCOE_RPI);
5606 * It's possible that the number of resources
5607 * provided to this port instance changed between
5608 * resets. Detect this condition and reallocate
5609 * resources. Otherwise, there is no action.
5612 lpfc_printf_log(phba, KERN_INFO,
5613 LOG_MBOX | LOG_INIT,
5614 "2931 Detected extent resource "
5615 "change. Reallocating all "
5617 rc = lpfc_sli4_dealloc_extent(phba,
5618 LPFC_RSC_TYPE_FCOE_VFI);
5619 rc = lpfc_sli4_dealloc_extent(phba,
5620 LPFC_RSC_TYPE_FCOE_VPI);
5621 rc = lpfc_sli4_dealloc_extent(phba,
5622 LPFC_RSC_TYPE_FCOE_XRI);
5623 rc = lpfc_sli4_dealloc_extent(phba,
5624 LPFC_RSC_TYPE_FCOE_RPI);
5629 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
5633 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
5637 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
5641 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
5644 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
5649 * The port does not support resource extents. The XRI, VPI,
5650 * VFI, RPI resource ids were determined from READ_CONFIG.
5651 * Just allocate the bitmasks and provision the resource id
5652 * arrays. If a port reset is active, the resources don't
5653 * need any action - just exit.
5655 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
5656 LPFC_IDX_RSRC_RDY) {
5657 lpfc_sli4_dealloc_resource_identifiers(phba);
5658 lpfc_sli4_remove_rpis(phba);
5661 count = phba->sli4_hba.max_cfg_param.max_rpi;
5663 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5664 "3279 Invalid provisioning of "
5669 base = phba->sli4_hba.max_cfg_param.rpi_base;
5670 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5671 phba->sli4_hba.rpi_bmask = kzalloc(longs *
5672 sizeof(unsigned long),
5674 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5678 phba->sli4_hba.rpi_ids = kzalloc(count *
5681 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5683 goto free_rpi_bmask;
5686 for (i = 0; i < count; i++)
5687 phba->sli4_hba.rpi_ids[i] = base + i;
5690 count = phba->sli4_hba.max_cfg_param.max_vpi;
5692 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5693 "3280 Invalid provisioning of "
5698 base = phba->sli4_hba.max_cfg_param.vpi_base;
5699 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5700 phba->vpi_bmask = kzalloc(longs *
5701 sizeof(unsigned long),
5703 if (unlikely(!phba->vpi_bmask)) {
5707 phba->vpi_ids = kzalloc(count *
5710 if (unlikely(!phba->vpi_ids)) {
5712 goto free_vpi_bmask;
5715 for (i = 0; i < count; i++)
5716 phba->vpi_ids[i] = base + i;
5719 count = phba->sli4_hba.max_cfg_param.max_xri;
5721 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5722 "3281 Invalid provisioning of "
5727 base = phba->sli4_hba.max_cfg_param.xri_base;
5728 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5729 phba->sli4_hba.xri_bmask = kzalloc(longs *
5730 sizeof(unsigned long),
5732 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5736 phba->sli4_hba.max_cfg_param.xri_used = 0;
5737 phba->sli4_hba.xri_ids = kzalloc(count *
5740 if (unlikely(!phba->sli4_hba.xri_ids)) {
5742 goto free_xri_bmask;
5745 for (i = 0; i < count; i++)
5746 phba->sli4_hba.xri_ids[i] = base + i;
5749 count = phba->sli4_hba.max_cfg_param.max_vfi;
5751 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5752 "3282 Invalid provisioning of "
5757 base = phba->sli4_hba.max_cfg_param.vfi_base;
5758 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5759 phba->sli4_hba.vfi_bmask = kzalloc(longs *
5760 sizeof(unsigned long),
5762 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5766 phba->sli4_hba.vfi_ids = kzalloc(count *
5769 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5771 goto free_vfi_bmask;
5774 for (i = 0; i < count; i++)
5775 phba->sli4_hba.vfi_ids[i] = base + i;
5778 * Mark all resources ready. An HBA reset doesn't need
5779 * to reset the initialization.
5781 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
5787 kfree(phba->sli4_hba.vfi_bmask);
5789 kfree(phba->sli4_hba.xri_ids);
5791 kfree(phba->sli4_hba.xri_bmask);
5793 kfree(phba->vpi_ids);
5795 kfree(phba->vpi_bmask);
5797 kfree(phba->sli4_hba.rpi_ids);
5799 kfree(phba->sli4_hba.rpi_bmask);
5805 * lpfc_sli4_dealloc_resource_identifiers - Deallocate all SLI4 resource extents.
5806 * @phba: Pointer to HBA context object.
5808 * This function allocates the number of elements for the specified
5812 lpfc_sli4_dealloc_resource_identifiers(struct lpfc_hba *phba)
5814 if (phba->sli4_hba.extents_in_use) {
5815 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
5816 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
5817 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
5818 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
5820 kfree(phba->vpi_bmask);
5821 phba->sli4_hba.max_cfg_param.vpi_used = 0;
5822 kfree(phba->vpi_ids);
5823 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5824 kfree(phba->sli4_hba.xri_bmask);
5825 kfree(phba->sli4_hba.xri_ids);
5826 kfree(phba->sli4_hba.vfi_bmask);
5827 kfree(phba->sli4_hba.vfi_ids);
5828 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5829 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5836 * lpfc_sli4_get_allocated_extnts - Get the port's allocated extents.
5837 * @phba: Pointer to HBA context object.
5838 * @type: The resource extent type.
5839 * @extnt_count: buffer to hold port extent count response
5840 * @extnt_size: buffer to hold port extent size response.
5842 * This function calls the port to read the host allocated extents
5843 * for a particular type.
5846 lpfc_sli4_get_allocated_extnts(struct lpfc_hba *phba, uint16_t type,
5847 uint16_t *extnt_cnt, uint16_t *extnt_size)
5851 uint16_t curr_blks = 0;
5852 uint32_t req_len, emb_len;
5853 uint32_t alloc_len, mbox_tmo;
5854 struct list_head *blk_list_head;
5855 struct lpfc_rsrc_blks *rsrc_blk;
5857 void *virtaddr = NULL;
5858 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5859 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5860 union lpfc_sli4_cfg_shdr *shdr;
5863 case LPFC_RSC_TYPE_FCOE_VPI:
5864 blk_list_head = &phba->lpfc_vpi_blk_list;
5866 case LPFC_RSC_TYPE_FCOE_XRI:
5867 blk_list_head = &phba->sli4_hba.lpfc_xri_blk_list;
5869 case LPFC_RSC_TYPE_FCOE_VFI:
5870 blk_list_head = &phba->sli4_hba.lpfc_vfi_blk_list;
5872 case LPFC_RSC_TYPE_FCOE_RPI:
5873 blk_list_head = &phba->sli4_hba.lpfc_rpi_blk_list;
5879 /* Count the number of extents currently allocatd for this type. */
5880 list_for_each_entry(rsrc_blk, blk_list_head, list) {
5881 if (curr_blks == 0) {
5883 * The GET_ALLOCATED mailbox does not return the size,
5884 * just the count. The size should be just the size
5885 * stored in the current allocated block and all sizes
5886 * for an extent type are the same so set the return
5889 *extnt_size = rsrc_blk->rsrc_size;
5894 /* Calculate the total requested length of the dma memory. */
5895 req_len = curr_blks * sizeof(uint16_t);
5898 * Calculate the size of an embedded mailbox. The uint32_t
5899 * accounts for extents-specific word.
5901 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
5905 * Presume the allocation and response will fit into an embedded
5906 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5908 emb = LPFC_SLI4_MBX_EMBED;
5910 if (req_len > emb_len) {
5911 req_len = curr_blks * sizeof(uint16_t) +
5912 sizeof(union lpfc_sli4_cfg_shdr) +
5914 emb = LPFC_SLI4_MBX_NEMBED;
5917 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5920 memset(mbox, 0, sizeof(LPFC_MBOXQ_t));
5922 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5923 LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT,
5925 if (alloc_len < req_len) {
5926 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5927 "2983 Allocated DMA memory size (x%x) is "
5928 "less than the requested DMA memory "
5929 "size (x%x)\n", alloc_len, req_len);
5933 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, curr_blks, type, emb);
5939 if (!phba->sli4_hba.intr_enable)
5940 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5942 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5943 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5952 * Figure out where the response is located. Then get local pointers
5953 * to the response data. The port does not guarantee to respond to
5954 * all extents counts request so update the local variable with the
5955 * allocated count from the port.
5957 if (emb == LPFC_SLI4_MBX_EMBED) {
5958 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
5959 shdr = &rsrc_ext->header.cfg_shdr;
5960 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
5962 virtaddr = mbox->sge_array->addr[0];
5963 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
5964 shdr = &n_rsrc->cfg_shdr;
5965 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
5968 if (bf_get(lpfc_mbox_hdr_status, &shdr->response)) {
5969 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5970 "2984 Failed to read allocated resources "
5971 "for type %d - Status 0x%x Add'l Status 0x%x.\n",
5973 bf_get(lpfc_mbox_hdr_status, &shdr->response),
5974 bf_get(lpfc_mbox_hdr_add_status, &shdr->response));
5979 lpfc_sli4_mbox_cmd_free(phba, mbox);
5984 * lpfc_sli4_repost_els_sgl_list - Repsot the els buffers sgl pages as block
5985 * @phba: pointer to lpfc hba data structure.
5987 * This routine walks the list of els buffers that have been allocated and
5988 * repost them to the port by using SGL block post. This is needed after a
5989 * pci_function_reset/warm_start or start. It attempts to construct blocks
5990 * of els buffer sgls which contains contiguous xris and uses the non-embedded
5991 * SGL block post mailbox commands to post them to the port. For single els
5992 * buffer sgl with non-contiguous xri, if any, it shall use embedded SGL post
5993 * mailbox command for posting.
5995 * Returns: 0 = success, non-zero failure.
5998 lpfc_sli4_repost_els_sgl_list(struct lpfc_hba *phba)
6000 struct lpfc_sglq *sglq_entry = NULL;
6001 struct lpfc_sglq *sglq_entry_next = NULL;
6002 struct lpfc_sglq *sglq_entry_first = NULL;
6003 int status, post_cnt = 0, num_posted = 0, block_cnt = 0;
6004 int last_xritag = NO_XRI;
6005 LIST_HEAD(prep_sgl_list);
6006 LIST_HEAD(blck_sgl_list);
6007 LIST_HEAD(allc_sgl_list);
6008 LIST_HEAD(post_sgl_list);
6009 LIST_HEAD(free_sgl_list);
6011 spin_lock_irq(&phba->hbalock);
6012 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &allc_sgl_list);
6013 spin_unlock_irq(&phba->hbalock);
6015 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
6016 &allc_sgl_list, list) {
6017 list_del_init(&sglq_entry->list);
6019 if ((last_xritag != NO_XRI) &&
6020 (sglq_entry->sli4_xritag != last_xritag + 1)) {
6021 /* a hole in xri block, form a sgl posting block */
6022 list_splice_init(&prep_sgl_list, &blck_sgl_list);
6023 post_cnt = block_cnt - 1;
6024 /* prepare list for next posting block */
6025 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6028 /* prepare list for next posting block */
6029 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6030 /* enough sgls for non-embed sgl mbox command */
6031 if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
6032 list_splice_init(&prep_sgl_list,
6034 post_cnt = block_cnt;
6040 /* keep track of last sgl's xritag */
6041 last_xritag = sglq_entry->sli4_xritag;
6043 /* end of repost sgl list condition for els buffers */
6044 if (num_posted == phba->sli4_hba.els_xri_cnt) {
6045 if (post_cnt == 0) {
6046 list_splice_init(&prep_sgl_list,
6048 post_cnt = block_cnt;
6049 } else if (block_cnt == 1) {
6050 status = lpfc_sli4_post_sgl(phba,
6051 sglq_entry->phys, 0,
6052 sglq_entry->sli4_xritag);
6054 /* successful, put sgl to posted list */
6055 list_add_tail(&sglq_entry->list,
6058 /* Failure, put sgl to free list */
6059 lpfc_printf_log(phba, KERN_WARNING,
6061 "3159 Failed to post els "
6062 "sgl, xritag:x%x\n",
6063 sglq_entry->sli4_xritag);
6064 list_add_tail(&sglq_entry->list,
6066 spin_lock_irq(&phba->hbalock);
6067 phba->sli4_hba.els_xri_cnt--;
6068 spin_unlock_irq(&phba->hbalock);
6073 /* continue until a nembed page worth of sgls */
6077 /* post the els buffer list sgls as a block */
6078 status = lpfc_sli4_post_els_sgl_list(phba, &blck_sgl_list,
6082 /* success, put sgl list to posted sgl list */
6083 list_splice_init(&blck_sgl_list, &post_sgl_list);
6085 /* Failure, put sgl list to free sgl list */
6086 sglq_entry_first = list_first_entry(&blck_sgl_list,
6089 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6090 "3160 Failed to post els sgl-list, "
6092 sglq_entry_first->sli4_xritag,
6093 (sglq_entry_first->sli4_xritag +
6095 list_splice_init(&blck_sgl_list, &free_sgl_list);
6096 spin_lock_irq(&phba->hbalock);
6097 phba->sli4_hba.els_xri_cnt -= post_cnt;
6098 spin_unlock_irq(&phba->hbalock);
6101 /* don't reset xirtag due to hole in xri block */
6103 last_xritag = NO_XRI;
6105 /* reset els sgl post count for next round of posting */
6109 /* free the els sgls failed to post */
6110 lpfc_free_sgl_list(phba, &free_sgl_list);
6112 /* push els sgls posted to the availble list */
6113 if (!list_empty(&post_sgl_list)) {
6114 spin_lock_irq(&phba->hbalock);
6115 list_splice_init(&post_sgl_list,
6116 &phba->sli4_hba.lpfc_sgl_list);
6117 spin_unlock_irq(&phba->hbalock);
6119 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6120 "3161 Failure to post els sgl to port.\n");
6127 * lpfc_sli4_hba_setup - SLI4 device intialization PCI function
6128 * @phba: Pointer to HBA context object.
6130 * This function is the main SLI4 device intialization PCI function. This
6131 * function is called by the HBA intialization code, HBA reset code and
6132 * HBA error attention handler code. Caller is not required to hold any
6136 lpfc_sli4_hba_setup(struct lpfc_hba *phba)
6139 LPFC_MBOXQ_t *mboxq;
6140 struct lpfc_mqe *mqe;
6143 uint32_t ftr_rsp = 0;
6144 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
6145 struct lpfc_vport *vport = phba->pport;
6146 struct lpfc_dmabuf *mp;
6148 /* Perform a PCI function reset to start from clean */
6149 rc = lpfc_pci_function_reset(phba);
6153 /* Check the HBA Host Status Register for readyness */
6154 rc = lpfc_sli4_post_status_check(phba);
6158 spin_lock_irq(&phba->hbalock);
6159 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
6160 spin_unlock_irq(&phba->hbalock);
6164 * Allocate a single mailbox container for initializing the
6167 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6171 /* Issue READ_REV to collect vpd and FW information. */
6172 vpd_size = SLI4_PAGE_SIZE;
6173 vpd = kzalloc(vpd_size, GFP_KERNEL);
6179 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
6184 mqe = &mboxq->u.mqe;
6185 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
6186 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev))
6187 phba->hba_flag |= HBA_FCOE_MODE;
6189 phba->hba_flag &= ~HBA_FCOE_MODE;
6191 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
6193 phba->hba_flag |= HBA_FIP_SUPPORT;
6195 phba->hba_flag &= ~HBA_FIP_SUPPORT;
6197 phba->hba_flag &= ~HBA_FCP_IOQ_FLUSH;
6199 if (phba->sli_rev != LPFC_SLI_REV4) {
6200 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6201 "0376 READ_REV Error. SLI Level %d "
6202 "FCoE enabled %d\n",
6203 phba->sli_rev, phba->hba_flag & HBA_FCOE_MODE);
6210 * Continue initialization with default values even if driver failed
6211 * to read FCoE param config regions, only read parameters if the
6214 if (phba->hba_flag & HBA_FCOE_MODE &&
6215 lpfc_sli4_read_fcoe_params(phba))
6216 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_INIT,
6217 "2570 Failed to read FCoE parameters\n");
6220 * Retrieve sli4 device physical port name, failure of doing it
6221 * is considered as non-fatal.
6223 rc = lpfc_sli4_retrieve_pport_name(phba);
6225 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6226 "3080 Successful retrieving SLI4 device "
6227 "physical port name: %s.\n", phba->Port);
6230 * Evaluate the read rev and vpd data. Populate the driver
6231 * state with the results. If this routine fails, the failure
6232 * is not fatal as the driver will use generic values.
6234 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
6235 if (unlikely(!rc)) {
6236 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6237 "0377 Error %d parsing vpd. "
6238 "Using defaults.\n", rc);
6243 /* Save information as VPD data */
6244 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
6245 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
6246 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
6247 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
6249 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
6251 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
6253 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
6255 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
6256 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
6257 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
6258 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
6259 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
6260 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
6261 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6262 "(%d):0380 READ_REV Status x%x "
6263 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
6264 mboxq->vport ? mboxq->vport->vpi : 0,
6265 bf_get(lpfc_mqe_status, mqe),
6266 phba->vpd.rev.opFwName,
6267 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
6268 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
6271 * Discover the port's supported feature set and match it against the
6274 lpfc_request_features(phba, mboxq);
6275 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6282 * The port must support FCP initiator mode as this is the
6283 * only mode running in the host.
6285 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
6286 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6287 "0378 No support for fcpi mode.\n");
6290 if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh, &mqe->un.req_ftrs))
6291 phba->sli3_options |= LPFC_SLI4_PERFH_ENABLED;
6293 phba->sli3_options &= ~LPFC_SLI4_PERFH_ENABLED;
6295 * If the port cannot support the host's requested features
6296 * then turn off the global config parameters to disable the
6297 * feature in the driver. This is not a fatal error.
6299 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
6300 if (phba->cfg_enable_bg) {
6301 if (bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))
6302 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
6307 if (phba->max_vpi && phba->cfg_enable_npiv &&
6308 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6312 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6313 "0379 Feature Mismatch Data: x%08x %08x "
6314 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
6315 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
6316 phba->cfg_enable_npiv, phba->max_vpi);
6317 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
6318 phba->cfg_enable_bg = 0;
6319 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6320 phba->cfg_enable_npiv = 0;
6323 /* These SLI3 features are assumed in SLI4 */
6324 spin_lock_irq(&phba->hbalock);
6325 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
6326 spin_unlock_irq(&phba->hbalock);
6329 * Allocate all resources (xri,rpi,vpi,vfi) now. Subsequent
6330 * calls depends on these resources to complete port setup.
6332 rc = lpfc_sli4_alloc_resource_identifiers(phba);
6334 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6335 "2920 Failed to alloc Resource IDs "
6340 /* Read the port's service parameters. */
6341 rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
6343 phba->link_state = LPFC_HBA_ERROR;
6348 mboxq->vport = vport;
6349 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6350 mp = (struct lpfc_dmabuf *) mboxq->context1;
6351 if (rc == MBX_SUCCESS) {
6352 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
6357 * This memory was allocated by the lpfc_read_sparam routine. Release
6358 * it to the mbuf pool.
6360 lpfc_mbuf_free(phba, mp->virt, mp->phys);
6362 mboxq->context1 = NULL;
6364 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6365 "0382 READ_SPARAM command failed "
6366 "status %d, mbxStatus x%x\n",
6367 rc, bf_get(lpfc_mqe_status, mqe));
6368 phba->link_state = LPFC_HBA_ERROR;
6373 lpfc_update_vport_wwn(vport);
6375 /* Update the fc_host data structures with new wwn. */
6376 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
6377 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
6379 /* update host els and scsi xri-sgl sizes and mappings */
6380 rc = lpfc_sli4_xri_sgl_update(phba);
6382 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6383 "1400 Failed to update xri-sgl size and "
6384 "mapping: %d\n", rc);
6388 /* register the els sgl pool to the port */
6389 rc = lpfc_sli4_repost_els_sgl_list(phba);
6391 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6392 "0582 Error %d during els sgl post "
6398 /* register the allocated scsi sgl pool to the port */
6399 rc = lpfc_sli4_repost_scsi_sgl_list(phba);
6401 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6402 "0383 Error %d during scsi sgl post "
6404 /* Some Scsi buffers were moved to the abort scsi list */
6405 /* A pci function reset will repost them */
6410 /* Post the rpi header region to the device. */
6411 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
6413 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6414 "0393 Error %d during rpi post operation\n",
6419 lpfc_sli4_node_prep(phba);
6421 /* Create all the SLI4 queues */
6422 rc = lpfc_sli4_queue_create(phba);
6424 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6425 "3089 Failed to allocate queues\n");
6427 goto out_stop_timers;
6429 /* Set up all the queues to the device */
6430 rc = lpfc_sli4_queue_setup(phba);
6432 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6433 "0381 Error %d during queue setup.\n ", rc);
6434 goto out_destroy_queue;
6437 /* Arm the CQs and then EQs on device */
6438 lpfc_sli4_arm_cqeq_intr(phba);
6440 /* Indicate device interrupt mode */
6441 phba->sli4_hba.intr_enable = 1;
6443 /* Allow asynchronous mailbox command to go through */
6444 spin_lock_irq(&phba->hbalock);
6445 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
6446 spin_unlock_irq(&phba->hbalock);
6448 /* Post receive buffers to the device */
6449 lpfc_sli4_rb_setup(phba);
6451 /* Reset HBA FCF states after HBA reset */
6452 phba->fcf.fcf_flag = 0;
6453 phba->fcf.current_rec.flag = 0;
6455 /* Start the ELS watchdog timer */
6456 mod_timer(&vport->els_tmofunc,
6457 jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov * 2)));
6459 /* Start heart beat timer */
6460 mod_timer(&phba->hb_tmofunc,
6461 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
6462 phba->hb_outstanding = 0;
6463 phba->last_completion_time = jiffies;
6465 /* Start error attention (ERATT) polling timer */
6466 mod_timer(&phba->eratt_poll,
6467 jiffies + msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
6469 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
6470 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
6471 rc = pci_enable_pcie_error_reporting(phba->pcidev);
6473 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6474 "2829 This device supports "
6475 "Advanced Error Reporting (AER)\n");
6476 spin_lock_irq(&phba->hbalock);
6477 phba->hba_flag |= HBA_AER_ENABLED;
6478 spin_unlock_irq(&phba->hbalock);
6480 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6481 "2830 This device does not support "
6482 "Advanced Error Reporting (AER)\n");
6483 phba->cfg_aer_support = 0;
6488 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
6490 * The FC Port needs to register FCFI (index 0)
6492 lpfc_reg_fcfi(phba, mboxq);
6493 mboxq->vport = phba->pport;
6494 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6495 if (rc != MBX_SUCCESS)
6496 goto out_unset_queue;
6498 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi,
6499 &mboxq->u.mqe.un.reg_fcfi);
6501 /* Check if the port is configured to be disabled */
6502 lpfc_sli_read_link_ste(phba);
6506 * The port is ready, set the host's link state to LINK_DOWN
6507 * in preparation for link interrupts.
6509 spin_lock_irq(&phba->hbalock);
6510 phba->link_state = LPFC_LINK_DOWN;
6511 spin_unlock_irq(&phba->hbalock);
6512 if (!(phba->hba_flag & HBA_FCOE_MODE) &&
6513 (phba->hba_flag & LINK_DISABLED)) {
6514 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
6515 "3103 Adapter Link is disabled.\n");
6516 lpfc_down_link(phba, mboxq);
6517 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6518 if (rc != MBX_SUCCESS) {
6519 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
6520 "3104 Adapter failed to issue "
6521 "DOWN_LINK mbox cmd, rc:x%x\n", rc);
6522 goto out_unset_queue;
6524 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
6525 /* don't perform init_link on SLI4 FC port loopback test */
6526 if (!(phba->link_flag & LS_LOOPBACK_MODE)) {
6527 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
6529 goto out_unset_queue;
6532 mempool_free(mboxq, phba->mbox_mem_pool);
6535 /* Unset all the queues set up in this routine when error out */
6536 lpfc_sli4_queue_unset(phba);
6538 lpfc_sli4_queue_destroy(phba);
6540 lpfc_stop_hba_timers(phba);
6542 mempool_free(mboxq, phba->mbox_mem_pool);
6547 * lpfc_mbox_timeout - Timeout call back function for mbox timer
6548 * @ptr: context object - pointer to hba structure.
6550 * This is the callback function for mailbox timer. The mailbox
6551 * timer is armed when a new mailbox command is issued and the timer
6552 * is deleted when the mailbox complete. The function is called by
6553 * the kernel timer code when a mailbox does not complete within
6554 * expected time. This function wakes up the worker thread to
6555 * process the mailbox timeout and returns. All the processing is
6556 * done by the worker thread function lpfc_mbox_timeout_handler.
6559 lpfc_mbox_timeout(unsigned long ptr)
6561 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
6562 unsigned long iflag;
6563 uint32_t tmo_posted;
6565 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
6566 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
6568 phba->pport->work_port_events |= WORKER_MBOX_TMO;
6569 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
6572 lpfc_worker_wake_up(phba);
6578 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
6579 * @phba: Pointer to HBA context object.
6581 * This function is called from worker thread when a mailbox command times out.
6582 * The caller is not required to hold any locks. This function will reset the
6583 * HBA and recover all the pending commands.
6586 lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
6588 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
6589 MAILBOX_t *mb = &pmbox->u.mb;
6590 struct lpfc_sli *psli = &phba->sli;
6591 struct lpfc_sli_ring *pring;
6593 /* Check the pmbox pointer first. There is a race condition
6594 * between the mbox timeout handler getting executed in the
6595 * worklist and the mailbox actually completing. When this
6596 * race condition occurs, the mbox_active will be NULL.
6598 spin_lock_irq(&phba->hbalock);
6599 if (pmbox == NULL) {
6600 lpfc_printf_log(phba, KERN_WARNING,
6602 "0353 Active Mailbox cleared - mailbox timeout "
6604 spin_unlock_irq(&phba->hbalock);
6608 /* Mbox cmd <mbxCommand> timeout */
6609 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6610 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
6612 phba->pport->port_state,
6614 phba->sli.mbox_active);
6615 spin_unlock_irq(&phba->hbalock);
6617 /* Setting state unknown so lpfc_sli_abort_iocb_ring
6618 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
6619 * it to fail all outstanding SCSI IO.
6621 spin_lock_irq(&phba->pport->work_port_lock);
6622 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
6623 spin_unlock_irq(&phba->pport->work_port_lock);
6624 spin_lock_irq(&phba->hbalock);
6625 phba->link_state = LPFC_LINK_UNKNOWN;
6626 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
6627 spin_unlock_irq(&phba->hbalock);
6629 pring = &psli->ring[psli->fcp_ring];
6630 lpfc_sli_abort_iocb_ring(phba, pring);
6632 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6633 "0345 Resetting board due to mailbox timeout\n");
6635 /* Reset the HBA device */
6636 lpfc_reset_hba(phba);
6640 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
6641 * @phba: Pointer to HBA context object.
6642 * @pmbox: Pointer to mailbox object.
6643 * @flag: Flag indicating how the mailbox need to be processed.
6645 * This function is called by discovery code and HBA management code
6646 * to submit a mailbox command to firmware with SLI-3 interface spec. This
6647 * function gets the hbalock to protect the data structures.
6648 * The mailbox command can be submitted in polling mode, in which case
6649 * this function will wait in a polling loop for the completion of the
6651 * If the mailbox is submitted in no_wait mode (not polling) the
6652 * function will submit the command and returns immediately without waiting
6653 * for the mailbox completion. The no_wait is supported only when HBA
6654 * is in SLI2/SLI3 mode - interrupts are enabled.
6655 * The SLI interface allows only one mailbox pending at a time. If the
6656 * mailbox is issued in polling mode and there is already a mailbox
6657 * pending, then the function will return an error. If the mailbox is issued
6658 * in NO_WAIT mode and there is a mailbox pending already, the function
6659 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
6660 * The sli layer owns the mailbox object until the completion of mailbox
6661 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
6662 * return codes the caller owns the mailbox command after the return of
6666 lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
6670 struct lpfc_sli *psli = &phba->sli;
6671 uint32_t status, evtctr;
6672 uint32_t ha_copy, hc_copy;
6674 unsigned long timeout;
6675 unsigned long drvr_flag = 0;
6676 uint32_t word0, ldata;
6677 void __iomem *to_slim;
6678 int processing_queue = 0;
6680 spin_lock_irqsave(&phba->hbalock, drvr_flag);
6682 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6683 /* processing mbox queue from intr_handler */
6684 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
6685 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6688 processing_queue = 1;
6689 pmbox = lpfc_mbox_get(phba);
6691 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6696 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
6697 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
6699 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6700 lpfc_printf_log(phba, KERN_ERR,
6701 LOG_MBOX | LOG_VPORT,
6702 "1806 Mbox x%x failed. No vport\n",
6703 pmbox->u.mb.mbxCommand);
6705 goto out_not_finished;
6709 /* If the PCI channel is in offline state, do not post mbox. */
6710 if (unlikely(pci_channel_offline(phba->pcidev))) {
6711 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6712 goto out_not_finished;
6715 /* If HBA has a deferred error attention, fail the iocb. */
6716 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
6717 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6718 goto out_not_finished;
6724 status = MBX_SUCCESS;
6726 if (phba->link_state == LPFC_HBA_ERROR) {
6727 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6729 /* Mbox command <mbxCommand> cannot issue */
6730 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6731 "(%d):0311 Mailbox command x%x cannot "
6732 "issue Data: x%x x%x\n",
6733 pmbox->vport ? pmbox->vport->vpi : 0,
6734 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
6735 goto out_not_finished;
6738 if (mbx->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT) {
6739 if (lpfc_readl(phba->HCregaddr, &hc_copy) ||
6740 !(hc_copy & HC_MBINT_ENA)) {
6741 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6742 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6743 "(%d):2528 Mailbox command x%x cannot "
6744 "issue Data: x%x x%x\n",
6745 pmbox->vport ? pmbox->vport->vpi : 0,
6746 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
6747 goto out_not_finished;
6751 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
6752 /* Polling for a mbox command when another one is already active
6753 * is not allowed in SLI. Also, the driver must have established
6754 * SLI2 mode to queue and process multiple mbox commands.
6757 if (flag & MBX_POLL) {
6758 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6760 /* Mbox command <mbxCommand> cannot issue */
6761 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6762 "(%d):2529 Mailbox command x%x "
6763 "cannot issue Data: x%x x%x\n",
6764 pmbox->vport ? pmbox->vport->vpi : 0,
6765 pmbox->u.mb.mbxCommand,
6766 psli->sli_flag, flag);
6767 goto out_not_finished;
6770 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
6771 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6772 /* Mbox command <mbxCommand> cannot issue */
6773 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6774 "(%d):2530 Mailbox command x%x "
6775 "cannot issue Data: x%x x%x\n",
6776 pmbox->vport ? pmbox->vport->vpi : 0,
6777 pmbox->u.mb.mbxCommand,
6778 psli->sli_flag, flag);
6779 goto out_not_finished;
6782 /* Another mailbox command is still being processed, queue this
6783 * command to be processed later.
6785 lpfc_mbox_put(phba, pmbox);
6787 /* Mbox cmd issue - BUSY */
6788 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6789 "(%d):0308 Mbox cmd issue - BUSY Data: "
6790 "x%x x%x x%x x%x\n",
6791 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
6792 mbx->mbxCommand, phba->pport->port_state,
6793 psli->sli_flag, flag);
6795 psli->slistat.mbox_busy++;
6796 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6799 lpfc_debugfs_disc_trc(pmbox->vport,
6800 LPFC_DISC_TRC_MBOX_VPORT,
6801 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
6802 (uint32_t)mbx->mbxCommand,
6803 mbx->un.varWords[0], mbx->un.varWords[1]);
6806 lpfc_debugfs_disc_trc(phba->pport,
6808 "MBOX Bsy: cmd:x%x mb:x%x x%x",
6809 (uint32_t)mbx->mbxCommand,
6810 mbx->un.varWords[0], mbx->un.varWords[1]);
6816 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
6818 /* If we are not polling, we MUST be in SLI2 mode */
6819 if (flag != MBX_POLL) {
6820 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
6821 (mbx->mbxCommand != MBX_KILL_BOARD)) {
6822 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6823 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6824 /* Mbox command <mbxCommand> cannot issue */
6825 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6826 "(%d):2531 Mailbox command x%x "
6827 "cannot issue Data: x%x x%x\n",
6828 pmbox->vport ? pmbox->vport->vpi : 0,
6829 pmbox->u.mb.mbxCommand,
6830 psli->sli_flag, flag);
6831 goto out_not_finished;
6833 /* timeout active mbox command */
6834 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
6836 mod_timer(&psli->mbox_tmo, jiffies + timeout);
6839 /* Mailbox cmd <cmd> issue */
6840 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6841 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
6843 pmbox->vport ? pmbox->vport->vpi : 0,
6844 mbx->mbxCommand, phba->pport->port_state,
6845 psli->sli_flag, flag);
6847 if (mbx->mbxCommand != MBX_HEARTBEAT) {
6849 lpfc_debugfs_disc_trc(pmbox->vport,
6850 LPFC_DISC_TRC_MBOX_VPORT,
6851 "MBOX Send vport: cmd:x%x mb:x%x x%x",
6852 (uint32_t)mbx->mbxCommand,
6853 mbx->un.varWords[0], mbx->un.varWords[1]);
6856 lpfc_debugfs_disc_trc(phba->pport,
6858 "MBOX Send: cmd:x%x mb:x%x x%x",
6859 (uint32_t)mbx->mbxCommand,
6860 mbx->un.varWords[0], mbx->un.varWords[1]);
6864 psli->slistat.mbox_cmd++;
6865 evtctr = psli->slistat.mbox_event;
6867 /* next set own bit for the adapter and copy over command word */
6868 mbx->mbxOwner = OWN_CHIP;
6870 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
6871 /* Populate mbox extension offset word. */
6872 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) {
6873 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
6874 = (uint8_t *)phba->mbox_ext
6875 - (uint8_t *)phba->mbox;
6878 /* Copy the mailbox extension data */
6879 if (pmbox->in_ext_byte_len && pmbox->context2) {
6880 lpfc_sli_pcimem_bcopy(pmbox->context2,
6881 (uint8_t *)phba->mbox_ext,
6882 pmbox->in_ext_byte_len);
6884 /* Copy command data to host SLIM area */
6885 lpfc_sli_pcimem_bcopy(mbx, phba->mbox, MAILBOX_CMD_SIZE);
6887 /* Populate mbox extension offset word. */
6888 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len)
6889 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
6890 = MAILBOX_HBA_EXT_OFFSET;
6892 /* Copy the mailbox extension data */
6893 if (pmbox->in_ext_byte_len && pmbox->context2) {
6894 lpfc_memcpy_to_slim(phba->MBslimaddr +
6895 MAILBOX_HBA_EXT_OFFSET,
6896 pmbox->context2, pmbox->in_ext_byte_len);
6899 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
6900 /* copy command data into host mbox for cmpl */
6901 lpfc_sli_pcimem_bcopy(mbx, phba->mbox, MAILBOX_CMD_SIZE);
6904 /* First copy mbox command data to HBA SLIM, skip past first
6906 to_slim = phba->MBslimaddr + sizeof (uint32_t);
6907 lpfc_memcpy_to_slim(to_slim, &mbx->un.varWords[0],
6908 MAILBOX_CMD_SIZE - sizeof (uint32_t));
6910 /* Next copy over first word, with mbxOwner set */
6911 ldata = *((uint32_t *)mbx);
6912 to_slim = phba->MBslimaddr;
6913 writel(ldata, to_slim);
6914 readl(to_slim); /* flush */
6916 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
6917 /* switch over to host mailbox */
6918 psli->sli_flag |= LPFC_SLI_ACTIVE;
6926 /* Set up reference to mailbox command */
6927 psli->mbox_active = pmbox;
6928 /* Interrupt board to do it */
6929 writel(CA_MBATT, phba->CAregaddr);
6930 readl(phba->CAregaddr); /* flush */
6931 /* Don't wait for it to finish, just return */
6935 /* Set up null reference to mailbox command */
6936 psli->mbox_active = NULL;
6937 /* Interrupt board to do it */
6938 writel(CA_MBATT, phba->CAregaddr);
6939 readl(phba->CAregaddr); /* flush */
6941 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
6942 /* First read mbox status word */
6943 word0 = *((uint32_t *)phba->mbox);
6944 word0 = le32_to_cpu(word0);
6946 /* First read mbox status word */
6947 if (lpfc_readl(phba->MBslimaddr, &word0)) {
6948 spin_unlock_irqrestore(&phba->hbalock,
6950 goto out_not_finished;
6954 /* Read the HBA Host Attention Register */
6955 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
6956 spin_unlock_irqrestore(&phba->hbalock,
6958 goto out_not_finished;
6960 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
6963 /* Wait for command to complete */
6964 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
6965 (!(ha_copy & HA_MBATT) &&
6966 (phba->link_state > LPFC_WARM_START))) {
6967 if (time_after(jiffies, timeout)) {
6968 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6969 spin_unlock_irqrestore(&phba->hbalock,
6971 goto out_not_finished;
6974 /* Check if we took a mbox interrupt while we were
6976 if (((word0 & OWN_CHIP) != OWN_CHIP)
6977 && (evtctr != psli->slistat.mbox_event))
6981 spin_unlock_irqrestore(&phba->hbalock,
6984 spin_lock_irqsave(&phba->hbalock, drvr_flag);
6987 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
6988 /* First copy command data */
6989 word0 = *((uint32_t *)phba->mbox);
6990 word0 = le32_to_cpu(word0);
6991 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
6994 /* Check real SLIM for any errors */
6995 slimword0 = readl(phba->MBslimaddr);
6996 slimmb = (MAILBOX_t *) & slimword0;
6997 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
6998 && slimmb->mbxStatus) {
7005 /* First copy command data */
7006 word0 = readl(phba->MBslimaddr);
7008 /* Read the HBA Host Attention Register */
7009 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
7010 spin_unlock_irqrestore(&phba->hbalock,
7012 goto out_not_finished;
7016 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7017 /* copy results back to user */
7018 lpfc_sli_pcimem_bcopy(phba->mbox, mbx, MAILBOX_CMD_SIZE);
7019 /* Copy the mailbox extension data */
7020 if (pmbox->out_ext_byte_len && pmbox->context2) {
7021 lpfc_sli_pcimem_bcopy(phba->mbox_ext,
7023 pmbox->out_ext_byte_len);
7026 /* First copy command data */
7027 lpfc_memcpy_from_slim(mbx, phba->MBslimaddr,
7029 /* Copy the mailbox extension data */
7030 if (pmbox->out_ext_byte_len && pmbox->context2) {
7031 lpfc_memcpy_from_slim(pmbox->context2,
7033 MAILBOX_HBA_EXT_OFFSET,
7034 pmbox->out_ext_byte_len);
7038 writel(HA_MBATT, phba->HAregaddr);
7039 readl(phba->HAregaddr); /* flush */
7041 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7042 status = mbx->mbxStatus;
7045 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7049 if (processing_queue) {
7050 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
7051 lpfc_mbox_cmpl_put(phba, pmbox);
7053 return MBX_NOT_FINISHED;
7057 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
7058 * @phba: Pointer to HBA context object.
7060 * The function blocks the posting of SLI4 asynchronous mailbox commands from
7061 * the driver internal pending mailbox queue. It will then try to wait out the
7062 * possible outstanding mailbox command before return.
7065 * 0 - the outstanding mailbox command completed; otherwise, the wait for
7066 * the outstanding mailbox command timed out.
7069 lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
7071 struct lpfc_sli *psli = &phba->sli;
7073 unsigned long timeout = 0;
7075 /* Mark the asynchronous mailbox command posting as blocked */
7076 spin_lock_irq(&phba->hbalock);
7077 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
7078 /* Determine how long we might wait for the active mailbox
7079 * command to be gracefully completed by firmware.
7081 if (phba->sli.mbox_active)
7082 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
7083 phba->sli.mbox_active) *
7085 spin_unlock_irq(&phba->hbalock);
7087 /* Wait for the outstnading mailbox command to complete */
7088 while (phba->sli.mbox_active) {
7089 /* Check active mailbox complete status every 2ms */
7091 if (time_after(jiffies, timeout)) {
7092 /* Timeout, marked the outstanding cmd not complete */
7098 /* Can not cleanly block async mailbox command, fails it */
7100 spin_lock_irq(&phba->hbalock);
7101 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7102 spin_unlock_irq(&phba->hbalock);
7108 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
7109 * @phba: Pointer to HBA context object.
7111 * The function unblocks and resume posting of SLI4 asynchronous mailbox
7112 * commands from the driver internal pending mailbox queue. It makes sure
7113 * that there is no outstanding mailbox command before resuming posting
7114 * asynchronous mailbox commands. If, for any reason, there is outstanding
7115 * mailbox command, it will try to wait it out before resuming asynchronous
7116 * mailbox command posting.
7119 lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
7121 struct lpfc_sli *psli = &phba->sli;
7123 spin_lock_irq(&phba->hbalock);
7124 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7125 /* Asynchronous mailbox posting is not blocked, do nothing */
7126 spin_unlock_irq(&phba->hbalock);
7130 /* Outstanding synchronous mailbox command is guaranteed to be done,
7131 * successful or timeout, after timing-out the outstanding mailbox
7132 * command shall always be removed, so just unblock posting async
7133 * mailbox command and resume
7135 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7136 spin_unlock_irq(&phba->hbalock);
7138 /* wake up worker thread to post asynchronlous mailbox command */
7139 lpfc_worker_wake_up(phba);
7143 * lpfc_sli4_wait_bmbx_ready - Wait for bootstrap mailbox register ready
7144 * @phba: Pointer to HBA context object.
7145 * @mboxq: Pointer to mailbox object.
7147 * The function waits for the bootstrap mailbox register ready bit from
7148 * port for twice the regular mailbox command timeout value.
7150 * 0 - no timeout on waiting for bootstrap mailbox register ready.
7151 * MBXERR_ERROR - wait for bootstrap mailbox register timed out.
7154 lpfc_sli4_wait_bmbx_ready(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7157 unsigned long timeout;
7158 struct lpfc_register bmbx_reg;
7160 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mboxq)
7164 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
7165 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
7169 if (time_after(jiffies, timeout))
7170 return MBXERR_ERROR;
7171 } while (!db_ready);
7177 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
7178 * @phba: Pointer to HBA context object.
7179 * @mboxq: Pointer to mailbox object.
7181 * The function posts a mailbox to the port. The mailbox is expected
7182 * to be comletely filled in and ready for the port to operate on it.
7183 * This routine executes a synchronous completion operation on the
7184 * mailbox by polling for its completion.
7186 * The caller must not be holding any locks when calling this routine.
7189 * MBX_SUCCESS - mailbox posted successfully
7190 * Any of the MBX error values.
7193 lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7195 int rc = MBX_SUCCESS;
7196 unsigned long iflag;
7197 uint32_t mcqe_status;
7199 struct lpfc_sli *psli = &phba->sli;
7200 struct lpfc_mqe *mb = &mboxq->u.mqe;
7201 struct lpfc_bmbx_create *mbox_rgn;
7202 struct dma_address *dma_address;
7205 * Only one mailbox can be active to the bootstrap mailbox region
7206 * at a time and there is no queueing provided.
7208 spin_lock_irqsave(&phba->hbalock, iflag);
7209 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7210 spin_unlock_irqrestore(&phba->hbalock, iflag);
7211 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7212 "(%d):2532 Mailbox command x%x (x%x/x%x) "
7213 "cannot issue Data: x%x x%x\n",
7214 mboxq->vport ? mboxq->vport->vpi : 0,
7215 mboxq->u.mb.mbxCommand,
7216 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7217 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7218 psli->sli_flag, MBX_POLL);
7219 return MBXERR_ERROR;
7221 /* The server grabs the token and owns it until release */
7222 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7223 phba->sli.mbox_active = mboxq;
7224 spin_unlock_irqrestore(&phba->hbalock, iflag);
7226 /* wait for bootstrap mbox register for readyness */
7227 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7232 * Initialize the bootstrap memory region to avoid stale data areas
7233 * in the mailbox post. Then copy the caller's mailbox contents to
7234 * the bmbx mailbox region.
7236 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
7237 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
7238 lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
7239 sizeof(struct lpfc_mqe));
7241 /* Post the high mailbox dma address to the port and wait for ready. */
7242 dma_address = &phba->sli4_hba.bmbx.dma_address;
7243 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
7245 /* wait for bootstrap mbox register for hi-address write done */
7246 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7250 /* Post the low mailbox dma address to the port. */
7251 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
7253 /* wait for bootstrap mbox register for low address write done */
7254 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7259 * Read the CQ to ensure the mailbox has completed.
7260 * If so, update the mailbox status so that the upper layers
7261 * can complete the request normally.
7263 lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
7264 sizeof(struct lpfc_mqe));
7265 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
7266 lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
7267 sizeof(struct lpfc_mcqe));
7268 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
7270 * When the CQE status indicates a failure and the mailbox status
7271 * indicates success then copy the CQE status into the mailbox status
7272 * (and prefix it with x4000).
7274 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
7275 if (bf_get(lpfc_mqe_status, mb) == MBX_SUCCESS)
7276 bf_set(lpfc_mqe_status, mb,
7277 (LPFC_MBX_ERROR_RANGE | mcqe_status));
7280 lpfc_sli4_swap_str(phba, mboxq);
7282 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7283 "(%d):0356 Mailbox cmd x%x (x%x/x%x) Status x%x "
7284 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
7285 " x%x x%x CQ: x%x x%x x%x x%x\n",
7286 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
7287 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7288 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7289 bf_get(lpfc_mqe_status, mb),
7290 mb->un.mb_words[0], mb->un.mb_words[1],
7291 mb->un.mb_words[2], mb->un.mb_words[3],
7292 mb->un.mb_words[4], mb->un.mb_words[5],
7293 mb->un.mb_words[6], mb->un.mb_words[7],
7294 mb->un.mb_words[8], mb->un.mb_words[9],
7295 mb->un.mb_words[10], mb->un.mb_words[11],
7296 mb->un.mb_words[12], mboxq->mcqe.word0,
7297 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
7298 mboxq->mcqe.trailer);
7300 /* We are holding the token, no needed for lock when release */
7301 spin_lock_irqsave(&phba->hbalock, iflag);
7302 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7303 phba->sli.mbox_active = NULL;
7304 spin_unlock_irqrestore(&phba->hbalock, iflag);
7309 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
7310 * @phba: Pointer to HBA context object.
7311 * @pmbox: Pointer to mailbox object.
7312 * @flag: Flag indicating how the mailbox need to be processed.
7314 * This function is called by discovery code and HBA management code to submit
7315 * a mailbox command to firmware with SLI-4 interface spec.
7317 * Return codes the caller owns the mailbox command after the return of the
7321 lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
7324 struct lpfc_sli *psli = &phba->sli;
7325 unsigned long iflags;
7328 /* dump from issue mailbox command if setup */
7329 lpfc_idiag_mbxacc_dump_issue_mbox(phba, &mboxq->u.mb);
7331 rc = lpfc_mbox_dev_check(phba);
7333 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7334 "(%d):2544 Mailbox command x%x (x%x/x%x) "
7335 "cannot issue Data: x%x x%x\n",
7336 mboxq->vport ? mboxq->vport->vpi : 0,
7337 mboxq->u.mb.mbxCommand,
7338 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7339 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7340 psli->sli_flag, flag);
7341 goto out_not_finished;
7344 /* Detect polling mode and jump to a handler */
7345 if (!phba->sli4_hba.intr_enable) {
7346 if (flag == MBX_POLL)
7347 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
7350 if (rc != MBX_SUCCESS)
7351 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7352 "(%d):2541 Mailbox command x%x "
7353 "(x%x/x%x) failure: "
7354 "mqe_sta: x%x mcqe_sta: x%x/x%x "
7356 mboxq->vport ? mboxq->vport->vpi : 0,
7357 mboxq->u.mb.mbxCommand,
7358 lpfc_sli_config_mbox_subsys_get(phba,
7360 lpfc_sli_config_mbox_opcode_get(phba,
7362 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
7363 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
7364 bf_get(lpfc_mcqe_ext_status,
7366 psli->sli_flag, flag);
7368 } else if (flag == MBX_POLL) {
7369 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7370 "(%d):2542 Try to issue mailbox command "
7371 "x%x (x%x/x%x) synchronously ahead of async"
7372 "mailbox command queue: x%x x%x\n",
7373 mboxq->vport ? mboxq->vport->vpi : 0,
7374 mboxq->u.mb.mbxCommand,
7375 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7376 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7377 psli->sli_flag, flag);
7378 /* Try to block the asynchronous mailbox posting */
7379 rc = lpfc_sli4_async_mbox_block(phba);
7381 /* Successfully blocked, now issue sync mbox cmd */
7382 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
7383 if (rc != MBX_SUCCESS)
7384 lpfc_printf_log(phba, KERN_WARNING,
7386 "(%d):2597 Sync Mailbox command "
7387 "x%x (x%x/x%x) failure: "
7388 "mqe_sta: x%x mcqe_sta: x%x/x%x "
7390 mboxq->vport ? mboxq->vport->vpi : 0,
7391 mboxq->u.mb.mbxCommand,
7392 lpfc_sli_config_mbox_subsys_get(phba,
7394 lpfc_sli_config_mbox_opcode_get(phba,
7396 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
7397 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
7398 bf_get(lpfc_mcqe_ext_status,
7400 psli->sli_flag, flag);
7401 /* Unblock the async mailbox posting afterward */
7402 lpfc_sli4_async_mbox_unblock(phba);
7407 /* Now, interrupt mode asynchrous mailbox command */
7408 rc = lpfc_mbox_cmd_check(phba, mboxq);
7410 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7411 "(%d):2543 Mailbox command x%x (x%x/x%x) "
7412 "cannot issue Data: x%x x%x\n",
7413 mboxq->vport ? mboxq->vport->vpi : 0,
7414 mboxq->u.mb.mbxCommand,
7415 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7416 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7417 psli->sli_flag, flag);
7418 goto out_not_finished;
7421 /* Put the mailbox command to the driver internal FIFO */
7422 psli->slistat.mbox_busy++;
7423 spin_lock_irqsave(&phba->hbalock, iflags);
7424 lpfc_mbox_put(phba, mboxq);
7425 spin_unlock_irqrestore(&phba->hbalock, iflags);
7426 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7427 "(%d):0354 Mbox cmd issue - Enqueue Data: "
7428 "x%x (x%x/x%x) x%x x%x x%x\n",
7429 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
7430 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
7431 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7432 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7433 phba->pport->port_state,
7434 psli->sli_flag, MBX_NOWAIT);
7435 /* Wake up worker thread to transport mailbox command from head */
7436 lpfc_worker_wake_up(phba);
7441 return MBX_NOT_FINISHED;
7445 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
7446 * @phba: Pointer to HBA context object.
7448 * This function is called by worker thread to send a mailbox command to
7449 * SLI4 HBA firmware.
7453 lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
7455 struct lpfc_sli *psli = &phba->sli;
7456 LPFC_MBOXQ_t *mboxq;
7457 int rc = MBX_SUCCESS;
7458 unsigned long iflags;
7459 struct lpfc_mqe *mqe;
7462 /* Check interrupt mode before post async mailbox command */
7463 if (unlikely(!phba->sli4_hba.intr_enable))
7464 return MBX_NOT_FINISHED;
7466 /* Check for mailbox command service token */
7467 spin_lock_irqsave(&phba->hbalock, iflags);
7468 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7469 spin_unlock_irqrestore(&phba->hbalock, iflags);
7470 return MBX_NOT_FINISHED;
7472 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7473 spin_unlock_irqrestore(&phba->hbalock, iflags);
7474 return MBX_NOT_FINISHED;
7476 if (unlikely(phba->sli.mbox_active)) {
7477 spin_unlock_irqrestore(&phba->hbalock, iflags);
7478 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7479 "0384 There is pending active mailbox cmd\n");
7480 return MBX_NOT_FINISHED;
7482 /* Take the mailbox command service token */
7483 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7485 /* Get the next mailbox command from head of queue */
7486 mboxq = lpfc_mbox_get(phba);
7488 /* If no more mailbox command waiting for post, we're done */
7490 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7491 spin_unlock_irqrestore(&phba->hbalock, iflags);
7494 phba->sli.mbox_active = mboxq;
7495 spin_unlock_irqrestore(&phba->hbalock, iflags);
7497 /* Check device readiness for posting mailbox command */
7498 rc = lpfc_mbox_dev_check(phba);
7500 /* Driver clean routine will clean up pending mailbox */
7501 goto out_not_finished;
7503 /* Prepare the mbox command to be posted */
7504 mqe = &mboxq->u.mqe;
7505 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
7507 /* Start timer for the mbox_tmo and log some mailbox post messages */
7508 mod_timer(&psli->mbox_tmo, (jiffies +
7509 msecs_to_jiffies(1000 * lpfc_mbox_tmo_val(phba, mboxq))));
7511 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7512 "(%d):0355 Mailbox cmd x%x (x%x/x%x) issue Data: "
7514 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
7515 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7516 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7517 phba->pport->port_state, psli->sli_flag);
7519 if (mbx_cmnd != MBX_HEARTBEAT) {
7521 lpfc_debugfs_disc_trc(mboxq->vport,
7522 LPFC_DISC_TRC_MBOX_VPORT,
7523 "MBOX Send vport: cmd:x%x mb:x%x x%x",
7524 mbx_cmnd, mqe->un.mb_words[0],
7525 mqe->un.mb_words[1]);
7527 lpfc_debugfs_disc_trc(phba->pport,
7529 "MBOX Send: cmd:x%x mb:x%x x%x",
7530 mbx_cmnd, mqe->un.mb_words[0],
7531 mqe->un.mb_words[1]);
7534 psli->slistat.mbox_cmd++;
7536 /* Post the mailbox command to the port */
7537 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
7538 if (rc != MBX_SUCCESS) {
7539 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7540 "(%d):2533 Mailbox command x%x (x%x/x%x) "
7541 "cannot issue Data: x%x x%x\n",
7542 mboxq->vport ? mboxq->vport->vpi : 0,
7543 mboxq->u.mb.mbxCommand,
7544 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7545 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7546 psli->sli_flag, MBX_NOWAIT);
7547 goto out_not_finished;
7553 spin_lock_irqsave(&phba->hbalock, iflags);
7554 if (phba->sli.mbox_active) {
7555 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
7556 __lpfc_mbox_cmpl_put(phba, mboxq);
7557 /* Release the token */
7558 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7559 phba->sli.mbox_active = NULL;
7561 spin_unlock_irqrestore(&phba->hbalock, iflags);
7563 return MBX_NOT_FINISHED;
7567 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
7568 * @phba: Pointer to HBA context object.
7569 * @pmbox: Pointer to mailbox object.
7570 * @flag: Flag indicating how the mailbox need to be processed.
7572 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
7573 * the API jump table function pointer from the lpfc_hba struct.
7575 * Return codes the caller owns the mailbox command after the return of the
7579 lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
7581 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
7585 * lpfc_mbox_api_table_setup - Set up mbox api function jump table
7586 * @phba: The hba struct for which this call is being executed.
7587 * @dev_grp: The HBA PCI-Device group number.
7589 * This routine sets up the mbox interface API function jump table in @phba
7591 * Returns: 0 - success, -ENODEV - failure.
7594 lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
7598 case LPFC_PCI_DEV_LP:
7599 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
7600 phba->lpfc_sli_handle_slow_ring_event =
7601 lpfc_sli_handle_slow_ring_event_s3;
7602 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
7603 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
7604 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
7606 case LPFC_PCI_DEV_OC:
7607 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
7608 phba->lpfc_sli_handle_slow_ring_event =
7609 lpfc_sli_handle_slow_ring_event_s4;
7610 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
7611 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
7612 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
7615 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7616 "1420 Invalid HBA PCI-device group: 0x%x\n",
7625 * __lpfc_sli_ringtx_put - Add an iocb to the txq
7626 * @phba: Pointer to HBA context object.
7627 * @pring: Pointer to driver SLI ring object.
7628 * @piocb: Pointer to address of newly added command iocb.
7630 * This function is called with hbalock held to add a command
7631 * iocb to the txq when SLI layer cannot submit the command iocb
7635 __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7636 struct lpfc_iocbq *piocb)
7638 /* Insert the caller's iocb in the txq tail for later processing. */
7639 list_add_tail(&piocb->list, &pring->txq);
7643 * lpfc_sli_next_iocb - Get the next iocb in the txq
7644 * @phba: Pointer to HBA context object.
7645 * @pring: Pointer to driver SLI ring object.
7646 * @piocb: Pointer to address of newly added command iocb.
7648 * This function is called with hbalock held before a new
7649 * iocb is submitted to the firmware. This function checks
7650 * txq to flush the iocbs in txq to Firmware before
7651 * submitting new iocbs to the Firmware.
7652 * If there are iocbs in the txq which need to be submitted
7653 * to firmware, lpfc_sli_next_iocb returns the first element
7654 * of the txq after dequeuing it from txq.
7655 * If there is no iocb in the txq then the function will return
7656 * *piocb and *piocb is set to NULL. Caller needs to check
7657 * *piocb to find if there are more commands in the txq.
7659 static struct lpfc_iocbq *
7660 lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7661 struct lpfc_iocbq **piocb)
7663 struct lpfc_iocbq * nextiocb;
7665 nextiocb = lpfc_sli_ringtx_get(phba, pring);
7675 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
7676 * @phba: Pointer to HBA context object.
7677 * @ring_number: SLI ring number to issue iocb on.
7678 * @piocb: Pointer to command iocb.
7679 * @flag: Flag indicating if this command can be put into txq.
7681 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
7682 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
7683 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
7684 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
7685 * this function allows only iocbs for posting buffers. This function finds
7686 * next available slot in the command ring and posts the command to the
7687 * available slot and writes the port attention register to request HBA start
7688 * processing new iocb. If there is no slot available in the ring and
7689 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
7690 * the function returns IOCB_BUSY.
7692 * This function is called with hbalock held. The function will return success
7693 * after it successfully submit the iocb to firmware or after adding to the
7697 __lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
7698 struct lpfc_iocbq *piocb, uint32_t flag)
7700 struct lpfc_iocbq *nextiocb;
7702 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
7704 if (piocb->iocb_cmpl && (!piocb->vport) &&
7705 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
7706 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
7707 lpfc_printf_log(phba, KERN_ERR,
7708 LOG_SLI | LOG_VPORT,
7709 "1807 IOCB x%x failed. No vport\n",
7710 piocb->iocb.ulpCommand);
7716 /* If the PCI channel is in offline state, do not post iocbs. */
7717 if (unlikely(pci_channel_offline(phba->pcidev)))
7720 /* If HBA has a deferred error attention, fail the iocb. */
7721 if (unlikely(phba->hba_flag & DEFER_ERATT))
7725 * We should never get an IOCB if we are in a < LINK_DOWN state
7727 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
7731 * Check to see if we are blocking IOCB processing because of a
7732 * outstanding event.
7734 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
7737 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
7739 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
7740 * can be issued if the link is not up.
7742 switch (piocb->iocb.ulpCommand) {
7743 case CMD_GEN_REQUEST64_CR:
7744 case CMD_GEN_REQUEST64_CX:
7745 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
7746 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
7747 FC_RCTL_DD_UNSOL_CMD) ||
7748 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
7749 MENLO_TRANSPORT_TYPE))
7753 case CMD_QUE_RING_BUF_CN:
7754 case CMD_QUE_RING_BUF64_CN:
7756 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
7757 * completion, iocb_cmpl MUST be 0.
7759 if (piocb->iocb_cmpl)
7760 piocb->iocb_cmpl = NULL;
7762 case CMD_CREATE_XRI_CR:
7763 case CMD_CLOSE_XRI_CN:
7764 case CMD_CLOSE_XRI_CX:
7771 * For FCP commands, we must be in a state where we can process link
7774 } else if (unlikely(pring->ringno == phba->sli.fcp_ring &&
7775 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
7779 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
7780 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
7781 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
7784 lpfc_sli_update_ring(phba, pring);
7786 lpfc_sli_update_full_ring(phba, pring);
7789 return IOCB_SUCCESS;
7794 pring->stats.iocb_cmd_delay++;
7798 if (!(flag & SLI_IOCB_RET_IOCB)) {
7799 __lpfc_sli_ringtx_put(phba, pring, piocb);
7800 return IOCB_SUCCESS;
7807 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
7808 * @phba: Pointer to HBA context object.
7809 * @piocb: Pointer to command iocb.
7810 * @sglq: Pointer to the scatter gather queue object.
7812 * This routine converts the bpl or bde that is in the IOCB
7813 * to a sgl list for the sli4 hardware. The physical address
7814 * of the bpl/bde is converted back to a virtual address.
7815 * If the IOCB contains a BPL then the list of BDE's is
7816 * converted to sli4_sge's. If the IOCB contains a single
7817 * BDE then it is converted to a single sli_sge.
7818 * The IOCB is still in cpu endianess so the contents of
7819 * the bpl can be used without byte swapping.
7821 * Returns valid XRI = Success, NO_XRI = Failure.
7824 lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
7825 struct lpfc_sglq *sglq)
7827 uint16_t xritag = NO_XRI;
7828 struct ulp_bde64 *bpl = NULL;
7829 struct ulp_bde64 bde;
7830 struct sli4_sge *sgl = NULL;
7831 struct lpfc_dmabuf *dmabuf;
7835 uint32_t offset = 0; /* accumulated offset in the sg request list */
7836 int inbound = 0; /* number of sg reply entries inbound from firmware */
7838 if (!piocbq || !sglq)
7841 sgl = (struct sli4_sge *)sglq->sgl;
7842 icmd = &piocbq->iocb;
7843 if (icmd->ulpCommand == CMD_XMIT_BLS_RSP64_CX)
7844 return sglq->sli4_xritag;
7845 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
7846 numBdes = icmd->un.genreq64.bdl.bdeSize /
7847 sizeof(struct ulp_bde64);
7848 /* The addrHigh and addrLow fields within the IOCB
7849 * have not been byteswapped yet so there is no
7850 * need to swap them back.
7852 if (piocbq->context3)
7853 dmabuf = (struct lpfc_dmabuf *)piocbq->context3;
7857 bpl = (struct ulp_bde64 *)dmabuf->virt;
7861 for (i = 0; i < numBdes; i++) {
7862 /* Should already be byte swapped. */
7863 sgl->addr_hi = bpl->addrHigh;
7864 sgl->addr_lo = bpl->addrLow;
7866 sgl->word2 = le32_to_cpu(sgl->word2);
7867 if ((i+1) == numBdes)
7868 bf_set(lpfc_sli4_sge_last, sgl, 1);
7870 bf_set(lpfc_sli4_sge_last, sgl, 0);
7871 /* swap the size field back to the cpu so we
7872 * can assign it to the sgl.
7874 bde.tus.w = le32_to_cpu(bpl->tus.w);
7875 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
7876 /* The offsets in the sgl need to be accumulated
7877 * separately for the request and reply lists.
7878 * The request is always first, the reply follows.
7880 if (piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) {
7881 /* add up the reply sg entries */
7882 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
7884 /* first inbound? reset the offset */
7887 bf_set(lpfc_sli4_sge_offset, sgl, offset);
7888 bf_set(lpfc_sli4_sge_type, sgl,
7889 LPFC_SGE_TYPE_DATA);
7890 offset += bde.tus.f.bdeSize;
7892 sgl->word2 = cpu_to_le32(sgl->word2);
7896 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
7897 /* The addrHigh and addrLow fields of the BDE have not
7898 * been byteswapped yet so they need to be swapped
7899 * before putting them in the sgl.
7902 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
7904 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
7905 sgl->word2 = le32_to_cpu(sgl->word2);
7906 bf_set(lpfc_sli4_sge_last, sgl, 1);
7907 sgl->word2 = cpu_to_le32(sgl->word2);
7909 cpu_to_le32(icmd->un.genreq64.bdl.bdeSize);
7911 return sglq->sli4_xritag;
7915 * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution
7916 * @phba: Pointer to HBA context object.
7918 * This routine performs a roundrobin SCSI command to SLI4 FCP WQ index
7919 * distribution. This is called by __lpfc_sli_issue_iocb_s4() with the hbalock
7922 * Return: index into SLI4 fast-path FCP queue index.
7924 static inline uint32_t
7925 lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba)
7929 if (phba->cfg_fcp_io_sched == LPFC_FCP_SCHED_BY_CPU)
7930 i = smp_processor_id();
7932 i = atomic_add_return(1, &phba->fcp_qidx);
7934 i = (i % phba->cfg_fcp_io_channel);
7939 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
7940 * @phba: Pointer to HBA context object.
7941 * @piocb: Pointer to command iocb.
7942 * @wqe: Pointer to the work queue entry.
7944 * This routine converts the iocb command to its Work Queue Entry
7945 * equivalent. The wqe pointer should not have any fields set when
7946 * this routine is called because it will memcpy over them.
7947 * This routine does not set the CQ_ID or the WQEC bits in the
7950 * Returns: 0 = Success, IOCB_ERROR = Failure.
7953 lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
7954 union lpfc_wqe *wqe)
7956 uint32_t xmit_len = 0, total_len = 0;
7960 uint8_t command_type = ELS_COMMAND_NON_FIP;
7963 uint16_t abrt_iotag;
7964 struct lpfc_iocbq *abrtiocbq;
7965 struct ulp_bde64 *bpl = NULL;
7966 uint32_t els_id = LPFC_ELS_ID_DEFAULT;
7968 struct ulp_bde64 bde;
7969 struct lpfc_nodelist *ndlp;
7973 fip = phba->hba_flag & HBA_FIP_SUPPORT;
7974 /* The fcp commands will set command type */
7975 if (iocbq->iocb_flag & LPFC_IO_FCP)
7976 command_type = FCP_COMMAND;
7977 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
7978 command_type = ELS_COMMAND_FIP;
7980 command_type = ELS_COMMAND_NON_FIP;
7982 /* Some of the fields are in the right position already */
7983 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
7984 abort_tag = (uint32_t) iocbq->iotag;
7985 xritag = iocbq->sli4_xritag;
7986 wqe->generic.wqe_com.word7 = 0; /* The ct field has moved so reset */
7987 /* words0-2 bpl convert bde */
7988 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
7989 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
7990 sizeof(struct ulp_bde64);
7991 bpl = (struct ulp_bde64 *)
7992 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
7996 /* Should already be byte swapped. */
7997 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
7998 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
7999 /* swap the size field back to the cpu so we
8000 * can assign it to the sgl.
8002 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
8003 xmit_len = wqe->generic.bde.tus.f.bdeSize;
8005 for (i = 0; i < numBdes; i++) {
8006 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
8007 total_len += bde.tus.f.bdeSize;
8010 xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
8012 iocbq->iocb.ulpIoTag = iocbq->iotag;
8013 cmnd = iocbq->iocb.ulpCommand;
8015 switch (iocbq->iocb.ulpCommand) {
8016 case CMD_ELS_REQUEST64_CR:
8017 if (iocbq->iocb_flag & LPFC_IO_LIBDFC)
8018 ndlp = iocbq->context_un.ndlp;
8020 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8021 if (!iocbq->iocb.ulpLe) {
8022 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8023 "2007 Only Limited Edition cmd Format"
8024 " supported 0x%x\n",
8025 iocbq->iocb.ulpCommand);
8029 wqe->els_req.payload_len = xmit_len;
8030 /* Els_reguest64 has a TMO */
8031 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
8032 iocbq->iocb.ulpTimeout);
8033 /* Need a VF for word 4 set the vf bit*/
8034 bf_set(els_req64_vf, &wqe->els_req, 0);
8035 /* And a VFID for word 12 */
8036 bf_set(els_req64_vfid, &wqe->els_req, 0);
8037 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
8038 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8039 iocbq->iocb.ulpContext);
8040 bf_set(wqe_ct, &wqe->els_req.wqe_com, ct);
8041 bf_set(wqe_pu, &wqe->els_req.wqe_com, 0);
8042 /* CCP CCPE PV PRI in word10 were set in the memcpy */
8043 if (command_type == ELS_COMMAND_FIP)
8044 els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
8045 >> LPFC_FIP_ELS_ID_SHIFT);
8046 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
8047 iocbq->context2)->virt);
8048 if_type = bf_get(lpfc_sli_intf_if_type,
8049 &phba->sli4_hba.sli_intf);
8050 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8051 if (pcmd && (*pcmd == ELS_CMD_FLOGI ||
8052 *pcmd == ELS_CMD_SCR ||
8053 *pcmd == ELS_CMD_FDISC ||
8054 *pcmd == ELS_CMD_LOGO ||
8055 *pcmd == ELS_CMD_PLOGI)) {
8056 bf_set(els_req64_sp, &wqe->els_req, 1);
8057 bf_set(els_req64_sid, &wqe->els_req,
8058 iocbq->vport->fc_myDID);
8059 if ((*pcmd == ELS_CMD_FLOGI) &&
8060 !(phba->fc_topology ==
8061 LPFC_TOPOLOGY_LOOP))
8062 bf_set(els_req64_sid, &wqe->els_req, 0);
8063 bf_set(wqe_ct, &wqe->els_req.wqe_com, 1);
8064 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8065 phba->vpi_ids[iocbq->vport->vpi]);
8066 } else if (pcmd && iocbq->context1) {
8067 bf_set(wqe_ct, &wqe->els_req.wqe_com, 0);
8068 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8069 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8072 bf_set(wqe_temp_rpi, &wqe->els_req.wqe_com,
8073 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8074 bf_set(wqe_els_id, &wqe->els_req.wqe_com, els_id);
8075 bf_set(wqe_dbde, &wqe->els_req.wqe_com, 1);
8076 bf_set(wqe_iod, &wqe->els_req.wqe_com, LPFC_WQE_IOD_READ);
8077 bf_set(wqe_qosd, &wqe->els_req.wqe_com, 1);
8078 bf_set(wqe_lenloc, &wqe->els_req.wqe_com, LPFC_WQE_LENLOC_NONE);
8079 bf_set(wqe_ebde_cnt, &wqe->els_req.wqe_com, 0);
8081 case CMD_XMIT_SEQUENCE64_CX:
8082 bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com,
8083 iocbq->iocb.un.ulpWord[3]);
8084 bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com,
8085 iocbq->iocb.unsli3.rcvsli3.ox_id);
8086 /* The entire sequence is transmitted for this IOCB */
8087 xmit_len = total_len;
8088 cmnd = CMD_XMIT_SEQUENCE64_CR;
8089 if (phba->link_flag & LS_LOOPBACK_MODE)
8090 bf_set(wqe_xo, &wqe->xmit_sequence.wge_ctl, 1);
8091 case CMD_XMIT_SEQUENCE64_CR:
8092 /* word3 iocb=io_tag32 wqe=reserved */
8093 wqe->xmit_sequence.rsvd3 = 0;
8094 /* word4 relative_offset memcpy */
8095 /* word5 r_ctl/df_ctl memcpy */
8096 bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0);
8097 bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1);
8098 bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com,
8099 LPFC_WQE_IOD_WRITE);
8100 bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com,
8101 LPFC_WQE_LENLOC_WORD12);
8102 bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0);
8103 wqe->xmit_sequence.xmit_len = xmit_len;
8104 command_type = OTHER_COMMAND;
8106 case CMD_XMIT_BCAST64_CN:
8107 /* word3 iocb=iotag32 wqe=seq_payload_len */
8108 wqe->xmit_bcast64.seq_payload_len = xmit_len;
8109 /* word4 iocb=rsvd wqe=rsvd */
8110 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
8111 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
8112 bf_set(wqe_ct, &wqe->xmit_bcast64.wqe_com,
8113 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8114 bf_set(wqe_dbde, &wqe->xmit_bcast64.wqe_com, 1);
8115 bf_set(wqe_iod, &wqe->xmit_bcast64.wqe_com, LPFC_WQE_IOD_WRITE);
8116 bf_set(wqe_lenloc, &wqe->xmit_bcast64.wqe_com,
8117 LPFC_WQE_LENLOC_WORD3);
8118 bf_set(wqe_ebde_cnt, &wqe->xmit_bcast64.wqe_com, 0);
8120 case CMD_FCP_IWRITE64_CR:
8121 command_type = FCP_COMMAND_DATA_OUT;
8122 /* word3 iocb=iotag wqe=payload_offset_len */
8123 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8124 wqe->fcp_iwrite.payload_offset_len =
8125 xmit_len + sizeof(struct fcp_rsp);
8126 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8127 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8128 bf_set(wqe_erp, &wqe->fcp_iwrite.wqe_com,
8129 iocbq->iocb.ulpFCP2Rcvy);
8130 bf_set(wqe_lnk, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpXS);
8131 /* Always open the exchange */
8132 bf_set(wqe_xc, &wqe->fcp_iwrite.wqe_com, 0);
8133 bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE);
8134 bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com,
8135 LPFC_WQE_LENLOC_WORD4);
8136 bf_set(wqe_ebde_cnt, &wqe->fcp_iwrite.wqe_com, 0);
8137 bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpPU);
8138 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 1);
8140 case CMD_FCP_IREAD64_CR:
8141 /* word3 iocb=iotag wqe=payload_offset_len */
8142 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8143 wqe->fcp_iread.payload_offset_len =
8144 xmit_len + sizeof(struct fcp_rsp);
8145 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8146 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8147 bf_set(wqe_erp, &wqe->fcp_iread.wqe_com,
8148 iocbq->iocb.ulpFCP2Rcvy);
8149 bf_set(wqe_lnk, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpXS);
8150 /* Always open the exchange */
8151 bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
8152 bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ);
8153 bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com,
8154 LPFC_WQE_LENLOC_WORD4);
8155 bf_set(wqe_ebde_cnt, &wqe->fcp_iread.wqe_com, 0);
8156 bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpPU);
8157 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 1);
8159 case CMD_FCP_ICMND64_CR:
8160 /* word3 iocb=IO_TAG wqe=reserved */
8161 wqe->fcp_icmd.rsrvd3 = 0;
8162 bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0);
8163 /* Always open the exchange */
8164 bf_set(wqe_xc, &wqe->fcp_icmd.wqe_com, 0);
8165 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 1);
8166 bf_set(wqe_iod, &wqe->fcp_icmd.wqe_com, LPFC_WQE_IOD_WRITE);
8167 bf_set(wqe_qosd, &wqe->fcp_icmd.wqe_com, 1);
8168 bf_set(wqe_lenloc, &wqe->fcp_icmd.wqe_com,
8169 LPFC_WQE_LENLOC_NONE);
8170 bf_set(wqe_ebde_cnt, &wqe->fcp_icmd.wqe_com, 0);
8171 bf_set(wqe_erp, &wqe->fcp_icmd.wqe_com,
8172 iocbq->iocb.ulpFCP2Rcvy);
8174 case CMD_GEN_REQUEST64_CR:
8175 /* For this command calculate the xmit length of the
8179 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
8180 sizeof(struct ulp_bde64);
8181 for (i = 0; i < numBdes; i++) {
8182 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
8183 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
8185 xmit_len += bde.tus.f.bdeSize;
8187 /* word3 iocb=IO_TAG wqe=request_payload_len */
8188 wqe->gen_req.request_payload_len = xmit_len;
8189 /* word4 iocb=parameter wqe=relative_offset memcpy */
8190 /* word5 [rctl, type, df_ctl, la] copied in memcpy */
8191 /* word6 context tag copied in memcpy */
8192 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
8193 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
8194 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8195 "2015 Invalid CT %x command 0x%x\n",
8196 ct, iocbq->iocb.ulpCommand);
8199 bf_set(wqe_ct, &wqe->gen_req.wqe_com, 0);
8200 bf_set(wqe_tmo, &wqe->gen_req.wqe_com, iocbq->iocb.ulpTimeout);
8201 bf_set(wqe_pu, &wqe->gen_req.wqe_com, iocbq->iocb.ulpPU);
8202 bf_set(wqe_dbde, &wqe->gen_req.wqe_com, 1);
8203 bf_set(wqe_iod, &wqe->gen_req.wqe_com, LPFC_WQE_IOD_READ);
8204 bf_set(wqe_qosd, &wqe->gen_req.wqe_com, 1);
8205 bf_set(wqe_lenloc, &wqe->gen_req.wqe_com, LPFC_WQE_LENLOC_NONE);
8206 bf_set(wqe_ebde_cnt, &wqe->gen_req.wqe_com, 0);
8207 command_type = OTHER_COMMAND;
8209 case CMD_XMIT_ELS_RSP64_CX:
8210 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8211 /* words0-2 BDE memcpy */
8212 /* word3 iocb=iotag32 wqe=response_payload_len */
8213 wqe->xmit_els_rsp.response_payload_len = xmit_len;
8215 wqe->xmit_els_rsp.word4 = 0;
8216 /* word5 iocb=rsvd wge=did */
8217 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
8218 iocbq->iocb.un.xseq64.xmit_els_remoteID);
8220 if_type = bf_get(lpfc_sli_intf_if_type,
8221 &phba->sli4_hba.sli_intf);
8222 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8223 if (iocbq->vport->fc_flag & FC_PT2PT) {
8224 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
8225 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
8226 iocbq->vport->fc_myDID);
8227 if (iocbq->vport->fc_myDID == Fabric_DID) {
8229 &wqe->xmit_els_rsp.wqe_dest, 0);
8233 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com,
8234 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8235 bf_set(wqe_pu, &wqe->xmit_els_rsp.wqe_com, iocbq->iocb.ulpPU);
8236 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
8237 iocbq->iocb.unsli3.rcvsli3.ox_id);
8238 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
8239 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
8240 phba->vpi_ids[iocbq->vport->vpi]);
8241 bf_set(wqe_dbde, &wqe->xmit_els_rsp.wqe_com, 1);
8242 bf_set(wqe_iod, &wqe->xmit_els_rsp.wqe_com, LPFC_WQE_IOD_WRITE);
8243 bf_set(wqe_qosd, &wqe->xmit_els_rsp.wqe_com, 1);
8244 bf_set(wqe_lenloc, &wqe->xmit_els_rsp.wqe_com,
8245 LPFC_WQE_LENLOC_WORD3);
8246 bf_set(wqe_ebde_cnt, &wqe->xmit_els_rsp.wqe_com, 0);
8247 bf_set(wqe_rsp_temp_rpi, &wqe->xmit_els_rsp,
8248 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8249 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
8250 iocbq->context2)->virt);
8251 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
8252 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
8253 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
8254 iocbq->vport->fc_myDID);
8255 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com, 1);
8256 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
8257 phba->vpi_ids[phba->pport->vpi]);
8259 command_type = OTHER_COMMAND;
8261 case CMD_CLOSE_XRI_CN:
8262 case CMD_ABORT_XRI_CN:
8263 case CMD_ABORT_XRI_CX:
8264 /* words 0-2 memcpy should be 0 rserved */
8265 /* port will send abts */
8266 abrt_iotag = iocbq->iocb.un.acxri.abortContextTag;
8267 if (abrt_iotag != 0 && abrt_iotag <= phba->sli.last_iotag) {
8268 abrtiocbq = phba->sli.iocbq_lookup[abrt_iotag];
8269 fip = abrtiocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK;
8273 if ((iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN) || fip)
8275 * The link is down, or the command was ELS_FIP
8276 * so the fw does not need to send abts
8279 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
8281 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
8282 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
8283 /* word5 iocb=CONTEXT_TAG|IO_TAG wqe=reserved */
8284 wqe->abort_cmd.rsrvd5 = 0;
8285 bf_set(wqe_ct, &wqe->abort_cmd.wqe_com,
8286 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8287 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
8289 * The abort handler will send us CMD_ABORT_XRI_CN or
8290 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
8292 bf_set(wqe_cmnd, &wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
8293 bf_set(wqe_qosd, &wqe->abort_cmd.wqe_com, 1);
8294 bf_set(wqe_lenloc, &wqe->abort_cmd.wqe_com,
8295 LPFC_WQE_LENLOC_NONE);
8296 cmnd = CMD_ABORT_XRI_CX;
8297 command_type = OTHER_COMMAND;
8300 case CMD_XMIT_BLS_RSP64_CX:
8301 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8302 /* As BLS ABTS RSP WQE is very different from other WQEs,
8303 * we re-construct this WQE here based on information in
8304 * iocbq from scratch.
8306 memset(wqe, 0, sizeof(union lpfc_wqe));
8307 /* OX_ID is invariable to who sent ABTS to CT exchange */
8308 bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
8309 bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_rsp));
8310 if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_rsp) ==
8311 LPFC_ABTS_UNSOL_INT) {
8312 /* ABTS sent by initiator to CT exchange, the
8313 * RX_ID field will be filled with the newly
8314 * allocated responder XRI.
8316 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
8317 iocbq->sli4_xritag);
8319 /* ABTS sent by responder to CT exchange, the
8320 * RX_ID field will be filled with the responder
8323 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
8324 bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_rsp));
8326 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
8327 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
8330 bf_set(wqe_els_did, &wqe->xmit_bls_rsp.wqe_dest,
8332 bf_set(xmit_bls_rsp64_temprpi, &wqe->xmit_bls_rsp,
8333 iocbq->iocb.ulpContext);
8334 bf_set(wqe_ct, &wqe->xmit_bls_rsp.wqe_com, 1);
8335 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
8336 phba->vpi_ids[phba->pport->vpi]);
8337 bf_set(wqe_qosd, &wqe->xmit_bls_rsp.wqe_com, 1);
8338 bf_set(wqe_lenloc, &wqe->xmit_bls_rsp.wqe_com,
8339 LPFC_WQE_LENLOC_NONE);
8340 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
8341 command_type = OTHER_COMMAND;
8342 if (iocbq->iocb.un.xseq64.w5.hcsw.Rctl == FC_RCTL_BA_RJT) {
8343 bf_set(xmit_bls_rsp64_rjt_vspec, &wqe->xmit_bls_rsp,
8344 bf_get(lpfc_vndr_code, &iocbq->iocb.un.bls_rsp));
8345 bf_set(xmit_bls_rsp64_rjt_expc, &wqe->xmit_bls_rsp,
8346 bf_get(lpfc_rsn_expln, &iocbq->iocb.un.bls_rsp));
8347 bf_set(xmit_bls_rsp64_rjt_rsnc, &wqe->xmit_bls_rsp,
8348 bf_get(lpfc_rsn_code, &iocbq->iocb.un.bls_rsp));
8352 case CMD_XRI_ABORTED_CX:
8353 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
8354 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
8355 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
8356 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
8357 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
8359 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8360 "2014 Invalid command 0x%x\n",
8361 iocbq->iocb.ulpCommand);
8366 if (iocbq->iocb_flag & LPFC_IO_DIF_PASS)
8367 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_PASSTHRU);
8368 else if (iocbq->iocb_flag & LPFC_IO_DIF_STRIP)
8369 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_STRIP);
8370 else if (iocbq->iocb_flag & LPFC_IO_DIF_INSERT)
8371 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_INSERT);
8372 iocbq->iocb_flag &= ~(LPFC_IO_DIF_PASS | LPFC_IO_DIF_STRIP |
8373 LPFC_IO_DIF_INSERT);
8374 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
8375 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
8376 wqe->generic.wqe_com.abort_tag = abort_tag;
8377 bf_set(wqe_cmd_type, &wqe->generic.wqe_com, command_type);
8378 bf_set(wqe_cmnd, &wqe->generic.wqe_com, cmnd);
8379 bf_set(wqe_class, &wqe->generic.wqe_com, iocbq->iocb.ulpClass);
8380 bf_set(wqe_cqid, &wqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
8385 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
8386 * @phba: Pointer to HBA context object.
8387 * @ring_number: SLI ring number to issue iocb on.
8388 * @piocb: Pointer to command iocb.
8389 * @flag: Flag indicating if this command can be put into txq.
8391 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
8392 * an iocb command to an HBA with SLI-4 interface spec.
8394 * This function is called with hbalock held. The function will return success
8395 * after it successfully submit the iocb to firmware or after adding to the
8399 __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
8400 struct lpfc_iocbq *piocb, uint32_t flag)
8402 struct lpfc_sglq *sglq;
8404 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
8406 if (piocb->sli4_xritag == NO_XRI) {
8407 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
8408 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
8411 if (!list_empty(&pring->txq)) {
8412 if (!(flag & SLI_IOCB_RET_IOCB)) {
8413 __lpfc_sli_ringtx_put(phba,
8415 return IOCB_SUCCESS;
8420 sglq = __lpfc_sli_get_sglq(phba, piocb);
8422 if (!(flag & SLI_IOCB_RET_IOCB)) {
8423 __lpfc_sli_ringtx_put(phba,
8426 return IOCB_SUCCESS;
8432 } else if (piocb->iocb_flag & LPFC_IO_FCP) {
8433 /* These IO's already have an XRI and a mapped sgl. */
8437 * This is a continuation of a commandi,(CX) so this
8438 * sglq is on the active list
8440 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_lxritag);
8446 piocb->sli4_lxritag = sglq->sli4_lxritag;
8447 piocb->sli4_xritag = sglq->sli4_xritag;
8448 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocb, sglq))
8452 if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe))
8455 if ((piocb->iocb_flag & LPFC_IO_FCP) ||
8456 (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
8457 if (lpfc_sli4_wq_put(phba->sli4_hba.fcp_wq[piocb->fcp_wqidx],
8461 if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
8464 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
8470 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
8472 * This routine wraps the actual lockless version for issusing IOCB function
8473 * pointer from the lpfc_hba struct.
8476 * IOCB_ERROR - Error
8477 * IOCB_SUCCESS - Success
8481 __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
8482 struct lpfc_iocbq *piocb, uint32_t flag)
8484 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
8488 * lpfc_sli_api_table_setup - Set up sli api function jump table
8489 * @phba: The hba struct for which this call is being executed.
8490 * @dev_grp: The HBA PCI-Device group number.
8492 * This routine sets up the SLI interface API function jump table in @phba
8494 * Returns: 0 - success, -ENODEV - failure.
8497 lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
8501 case LPFC_PCI_DEV_LP:
8502 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
8503 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
8505 case LPFC_PCI_DEV_OC:
8506 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
8507 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
8510 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8511 "1419 Invalid HBA PCI-device group: 0x%x\n",
8516 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
8521 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
8522 * @phba: Pointer to HBA context object.
8523 * @pring: Pointer to driver SLI ring object.
8524 * @piocb: Pointer to command iocb.
8525 * @flag: Flag indicating if this command can be put into txq.
8527 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
8528 * function. This function gets the hbalock and calls
8529 * __lpfc_sli_issue_iocb function and will return the error returned
8530 * by __lpfc_sli_issue_iocb function. This wrapper is used by
8531 * functions which do not hold hbalock.
8534 lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
8535 struct lpfc_iocbq *piocb, uint32_t flag)
8537 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
8538 struct lpfc_sli_ring *pring;
8539 struct lpfc_queue *fpeq;
8540 struct lpfc_eqe *eqe;
8541 unsigned long iflags;
8544 if (phba->sli_rev == LPFC_SLI_REV4) {
8545 if (piocb->iocb_flag & LPFC_IO_FCP) {
8546 if (unlikely(!phba->sli4_hba.fcp_wq))
8548 idx = lpfc_sli4_scmd_to_wqidx_distr(phba);
8549 piocb->fcp_wqidx = idx;
8550 ring_number = MAX_SLI3_CONFIGURED_RINGS + idx;
8552 pring = &phba->sli.ring[ring_number];
8553 spin_lock_irqsave(&pring->ring_lock, iflags);
8554 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb,
8556 spin_unlock_irqrestore(&pring->ring_lock, iflags);
8558 if (lpfc_fcp_look_ahead) {
8559 fcp_eq_hdl = &phba->sli4_hba.fcp_eq_hdl[idx];
8561 if (atomic_dec_and_test(&fcp_eq_hdl->
8564 /* Get associated EQ with this index */
8565 fpeq = phba->sli4_hba.hba_eq[idx];
8567 /* Turn off interrupts from this EQ */
8568 lpfc_sli4_eq_clr_intr(fpeq);
8571 * Process all the events on FCP EQ
8573 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
8574 lpfc_sli4_hba_handle_eqe(phba,
8576 fpeq->EQ_processed++;
8579 /* Always clear and re-arm the EQ */
8580 lpfc_sli4_eq_release(fpeq,
8583 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
8586 pring = &phba->sli.ring[ring_number];
8587 spin_lock_irqsave(&pring->ring_lock, iflags);
8588 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb,
8590 spin_unlock_irqrestore(&pring->ring_lock, iflags);
8594 /* For now, SLI2/3 will still use hbalock */
8595 spin_lock_irqsave(&phba->hbalock, iflags);
8596 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
8597 spin_unlock_irqrestore(&phba->hbalock, iflags);
8603 * lpfc_extra_ring_setup - Extra ring setup function
8604 * @phba: Pointer to HBA context object.
8606 * This function is called while driver attaches with the
8607 * HBA to setup the extra ring. The extra ring is used
8608 * only when driver needs to support target mode functionality
8609 * or IP over FC functionalities.
8611 * This function is called with no lock held.
8614 lpfc_extra_ring_setup( struct lpfc_hba *phba)
8616 struct lpfc_sli *psli;
8617 struct lpfc_sli_ring *pring;
8621 /* Adjust cmd/rsp ring iocb entries more evenly */
8623 /* Take some away from the FCP ring */
8624 pring = &psli->ring[psli->fcp_ring];
8625 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8626 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8627 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8628 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
8630 /* and give them to the extra ring */
8631 pring = &psli->ring[psli->extra_ring];
8633 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8634 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8635 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8636 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
8638 /* Setup default profile for this ring */
8639 pring->iotag_max = 4096;
8640 pring->num_mask = 1;
8641 pring->prt[0].profile = 0; /* Mask 0 */
8642 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
8643 pring->prt[0].type = phba->cfg_multi_ring_type;
8644 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
8648 /* lpfc_sli_abts_err_handler - handle a failed ABTS request from an SLI3 port.
8649 * @phba: Pointer to HBA context object.
8650 * @iocbq: Pointer to iocb object.
8652 * The async_event handler calls this routine when it receives
8653 * an ASYNC_STATUS_CN event from the port. The port generates
8654 * this event when an Abort Sequence request to an rport fails
8655 * twice in succession. The abort could be originated by the
8656 * driver or by the port. The ABTS could have been for an ELS
8657 * or FCP IO. The port only generates this event when an ABTS
8658 * fails to complete after one retry.
8661 lpfc_sli_abts_err_handler(struct lpfc_hba *phba,
8662 struct lpfc_iocbq *iocbq)
8664 struct lpfc_nodelist *ndlp = NULL;
8665 uint16_t rpi = 0, vpi = 0;
8666 struct lpfc_vport *vport = NULL;
8668 /* The rpi in the ulpContext is vport-sensitive. */
8669 vpi = iocbq->iocb.un.asyncstat.sub_ctxt_tag;
8670 rpi = iocbq->iocb.ulpContext;
8672 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8673 "3092 Port generated ABTS async event "
8674 "on vpi %d rpi %d status 0x%x\n",
8675 vpi, rpi, iocbq->iocb.ulpStatus);
8677 vport = lpfc_find_vport_by_vpid(phba, vpi);
8680 ndlp = lpfc_findnode_rpi(vport, rpi);
8681 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
8684 if (iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT)
8685 lpfc_sli_abts_recover_port(vport, ndlp);
8689 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8690 "3095 Event Context not found, no "
8691 "action on vpi %d rpi %d status 0x%x, reason 0x%x\n",
8692 iocbq->iocb.ulpContext, iocbq->iocb.ulpStatus,
8696 /* lpfc_sli4_abts_err_handler - handle a failed ABTS request from an SLI4 port.
8697 * @phba: pointer to HBA context object.
8698 * @ndlp: nodelist pointer for the impacted rport.
8699 * @axri: pointer to the wcqe containing the failed exchange.
8701 * The driver calls this routine when it receives an ABORT_XRI_FCP CQE from the
8702 * port. The port generates this event when an abort exchange request to an
8703 * rport fails twice in succession with no reply. The abort could be originated
8704 * by the driver or by the port. The ABTS could have been for an ELS or FCP IO.
8707 lpfc_sli4_abts_err_handler(struct lpfc_hba *phba,
8708 struct lpfc_nodelist *ndlp,
8709 struct sli4_wcqe_xri_aborted *axri)
8711 struct lpfc_vport *vport;
8712 uint32_t ext_status = 0;
8714 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
8715 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8716 "3115 Node Context not found, driver "
8717 "ignoring abts err event\n");
8721 vport = ndlp->vport;
8722 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8723 "3116 Port generated FCP XRI ABORT event on "
8724 "vpi %d rpi %d xri x%x status 0x%x parameter x%x\n",
8725 ndlp->vport->vpi, ndlp->nlp_rpi,
8726 bf_get(lpfc_wcqe_xa_xri, axri),
8727 bf_get(lpfc_wcqe_xa_status, axri),
8731 * Catch the ABTS protocol failure case. Older OCe FW releases returned
8732 * LOCAL_REJECT and 0 for a failed ABTS exchange and later OCe and
8733 * LPe FW releases returned LOCAL_REJECT and SEQUENCE_TIMEOUT.
8735 ext_status = axri->parameter & IOERR_PARAM_MASK;
8736 if ((bf_get(lpfc_wcqe_xa_status, axri) == IOSTAT_LOCAL_REJECT) &&
8737 ((ext_status == IOERR_SEQUENCE_TIMEOUT) || (ext_status == 0)))
8738 lpfc_sli_abts_recover_port(vport, ndlp);
8742 * lpfc_sli_async_event_handler - ASYNC iocb handler function
8743 * @phba: Pointer to HBA context object.
8744 * @pring: Pointer to driver SLI ring object.
8745 * @iocbq: Pointer to iocb object.
8747 * This function is called by the slow ring event handler
8748 * function when there is an ASYNC event iocb in the ring.
8749 * This function is called with no lock held.
8750 * Currently this function handles only temperature related
8751 * ASYNC events. The function decodes the temperature sensor
8752 * event message and posts events for the management applications.
8755 lpfc_sli_async_event_handler(struct lpfc_hba * phba,
8756 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
8760 struct temp_event temp_event_data;
8761 struct Scsi_Host *shost;
8764 icmd = &iocbq->iocb;
8765 evt_code = icmd->un.asyncstat.evt_code;
8768 case ASYNC_TEMP_WARN:
8769 case ASYNC_TEMP_SAFE:
8770 temp_event_data.data = (uint32_t) icmd->ulpContext;
8771 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
8772 if (evt_code == ASYNC_TEMP_WARN) {
8773 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
8774 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
8775 "0347 Adapter is very hot, please take "
8776 "corrective action. temperature : %d Celsius\n",
8777 (uint32_t) icmd->ulpContext);
8779 temp_event_data.event_code = LPFC_NORMAL_TEMP;
8780 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
8781 "0340 Adapter temperature is OK now. "
8782 "temperature : %d Celsius\n",
8783 (uint32_t) icmd->ulpContext);
8786 /* Send temperature change event to applications */
8787 shost = lpfc_shost_from_vport(phba->pport);
8788 fc_host_post_vendor_event(shost, fc_get_event_number(),
8789 sizeof(temp_event_data), (char *) &temp_event_data,
8792 case ASYNC_STATUS_CN:
8793 lpfc_sli_abts_err_handler(phba, iocbq);
8796 iocb_w = (uint32_t *) icmd;
8797 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8798 "0346 Ring %d handler: unexpected ASYNC_STATUS"
8800 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
8801 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
8802 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
8803 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
8804 pring->ringno, icmd->un.asyncstat.evt_code,
8805 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
8806 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
8807 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
8808 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
8816 * lpfc_sli_setup - SLI ring setup function
8817 * @phba: Pointer to HBA context object.
8819 * lpfc_sli_setup sets up rings of the SLI interface with
8820 * number of iocbs per ring and iotags. This function is
8821 * called while driver attach to the HBA and before the
8822 * interrupts are enabled. So there is no need for locking.
8824 * This function always returns 0.
8827 lpfc_sli_setup(struct lpfc_hba *phba)
8829 int i, totiocbsize = 0;
8830 struct lpfc_sli *psli = &phba->sli;
8831 struct lpfc_sli_ring *pring;
8833 psli->num_rings = MAX_SLI3_CONFIGURED_RINGS;
8834 if (phba->sli_rev == LPFC_SLI_REV4)
8835 psli->num_rings += phba->cfg_fcp_io_channel;
8837 psli->fcp_ring = LPFC_FCP_RING;
8838 psli->next_ring = LPFC_FCP_NEXT_RING;
8839 psli->extra_ring = LPFC_EXTRA_RING;
8841 psli->iocbq_lookup = NULL;
8842 psli->iocbq_lookup_len = 0;
8843 psli->last_iotag = 0;
8845 for (i = 0; i < psli->num_rings; i++) {
8846 pring = &psli->ring[i];
8848 case LPFC_FCP_RING: /* ring 0 - FCP */
8849 /* numCiocb and numRiocb are used in config_port */
8850 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
8851 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
8852 pring->sli.sli3.numCiocb +=
8853 SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8854 pring->sli.sli3.numRiocb +=
8855 SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8856 pring->sli.sli3.numCiocb +=
8857 SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8858 pring->sli.sli3.numRiocb +=
8859 SLI2_IOCB_RSP_R3XTRA_ENTRIES;
8860 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
8861 SLI3_IOCB_CMD_SIZE :
8863 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
8864 SLI3_IOCB_RSP_SIZE :
8866 pring->iotag_ctr = 0;
8868 (phba->cfg_hba_queue_depth * 2);
8869 pring->fast_iotag = pring->iotag_max;
8870 pring->num_mask = 0;
8872 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
8873 /* numCiocb and numRiocb are used in config_port */
8874 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
8875 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
8876 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
8877 SLI3_IOCB_CMD_SIZE :
8879 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
8880 SLI3_IOCB_RSP_SIZE :
8882 pring->iotag_max = phba->cfg_hba_queue_depth;
8883 pring->num_mask = 0;
8885 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
8886 /* numCiocb and numRiocb are used in config_port */
8887 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
8888 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
8889 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
8890 SLI3_IOCB_CMD_SIZE :
8892 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
8893 SLI3_IOCB_RSP_SIZE :
8895 pring->fast_iotag = 0;
8896 pring->iotag_ctr = 0;
8897 pring->iotag_max = 4096;
8898 pring->lpfc_sli_rcv_async_status =
8899 lpfc_sli_async_event_handler;
8900 pring->num_mask = LPFC_MAX_RING_MASK;
8901 pring->prt[0].profile = 0; /* Mask 0 */
8902 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
8903 pring->prt[0].type = FC_TYPE_ELS;
8904 pring->prt[0].lpfc_sli_rcv_unsol_event =
8905 lpfc_els_unsol_event;
8906 pring->prt[1].profile = 0; /* Mask 1 */
8907 pring->prt[1].rctl = FC_RCTL_ELS_REP;
8908 pring->prt[1].type = FC_TYPE_ELS;
8909 pring->prt[1].lpfc_sli_rcv_unsol_event =
8910 lpfc_els_unsol_event;
8911 pring->prt[2].profile = 0; /* Mask 2 */
8912 /* NameServer Inquiry */
8913 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
8915 pring->prt[2].type = FC_TYPE_CT;
8916 pring->prt[2].lpfc_sli_rcv_unsol_event =
8917 lpfc_ct_unsol_event;
8918 pring->prt[3].profile = 0; /* Mask 3 */
8919 /* NameServer response */
8920 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
8922 pring->prt[3].type = FC_TYPE_CT;
8923 pring->prt[3].lpfc_sli_rcv_unsol_event =
8924 lpfc_ct_unsol_event;
8927 totiocbsize += (pring->sli.sli3.numCiocb *
8928 pring->sli.sli3.sizeCiocb) +
8929 (pring->sli.sli3.numRiocb * pring->sli.sli3.sizeRiocb);
8931 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
8932 /* Too many cmd / rsp ring entries in SLI2 SLIM */
8933 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
8934 "SLI2 SLIM Data: x%x x%lx\n",
8935 phba->brd_no, totiocbsize,
8936 (unsigned long) MAX_SLIM_IOCB_SIZE);
8938 if (phba->cfg_multi_ring_support == 2)
8939 lpfc_extra_ring_setup(phba);
8945 * lpfc_sli_queue_setup - Queue initialization function
8946 * @phba: Pointer to HBA context object.
8948 * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each
8949 * ring. This function also initializes ring indices of each ring.
8950 * This function is called during the initialization of the SLI
8951 * interface of an HBA.
8952 * This function is called with no lock held and always returns
8956 lpfc_sli_queue_setup(struct lpfc_hba *phba)
8958 struct lpfc_sli *psli;
8959 struct lpfc_sli_ring *pring;
8963 spin_lock_irq(&phba->hbalock);
8964 INIT_LIST_HEAD(&psli->mboxq);
8965 INIT_LIST_HEAD(&psli->mboxq_cmpl);
8966 /* Initialize list headers for txq and txcmplq as double linked lists */
8967 for (i = 0; i < psli->num_rings; i++) {
8968 pring = &psli->ring[i];
8970 pring->sli.sli3.next_cmdidx = 0;
8971 pring->sli.sli3.local_getidx = 0;
8972 pring->sli.sli3.cmdidx = 0;
8973 INIT_LIST_HEAD(&pring->txq);
8974 INIT_LIST_HEAD(&pring->txcmplq);
8975 INIT_LIST_HEAD(&pring->iocb_continueq);
8976 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
8977 INIT_LIST_HEAD(&pring->postbufq);
8978 spin_lock_init(&pring->ring_lock);
8980 spin_unlock_irq(&phba->hbalock);
8985 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
8986 * @phba: Pointer to HBA context object.
8988 * This routine flushes the mailbox command subsystem. It will unconditionally
8989 * flush all the mailbox commands in the three possible stages in the mailbox
8990 * command sub-system: pending mailbox command queue; the outstanding mailbox
8991 * command; and completed mailbox command queue. It is caller's responsibility
8992 * to make sure that the driver is in the proper state to flush the mailbox
8993 * command sub-system. Namely, the posting of mailbox commands into the
8994 * pending mailbox command queue from the various clients must be stopped;
8995 * either the HBA is in a state that it will never works on the outstanding
8996 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
8997 * mailbox command has been completed.
9000 lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
9002 LIST_HEAD(completions);
9003 struct lpfc_sli *psli = &phba->sli;
9005 unsigned long iflag;
9007 /* Flush all the mailbox commands in the mbox system */
9008 spin_lock_irqsave(&phba->hbalock, iflag);
9009 /* The pending mailbox command queue */
9010 list_splice_init(&phba->sli.mboxq, &completions);
9011 /* The outstanding active mailbox command */
9012 if (psli->mbox_active) {
9013 list_add_tail(&psli->mbox_active->list, &completions);
9014 psli->mbox_active = NULL;
9015 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9017 /* The completed mailbox command queue */
9018 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
9019 spin_unlock_irqrestore(&phba->hbalock, iflag);
9021 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
9022 while (!list_empty(&completions)) {
9023 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
9024 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
9026 pmb->mbox_cmpl(phba, pmb);
9031 * lpfc_sli_host_down - Vport cleanup function
9032 * @vport: Pointer to virtual port object.
9034 * lpfc_sli_host_down is called to clean up the resources
9035 * associated with a vport before destroying virtual
9036 * port data structures.
9037 * This function does following operations:
9038 * - Free discovery resources associated with this virtual
9040 * - Free iocbs associated with this virtual port in
9042 * - Send abort for all iocb commands associated with this
9045 * This function is called with no lock held and always returns 1.
9048 lpfc_sli_host_down(struct lpfc_vport *vport)
9050 LIST_HEAD(completions);
9051 struct lpfc_hba *phba = vport->phba;
9052 struct lpfc_sli *psli = &phba->sli;
9053 struct lpfc_sli_ring *pring;
9054 struct lpfc_iocbq *iocb, *next_iocb;
9056 unsigned long flags = 0;
9057 uint16_t prev_pring_flag;
9059 lpfc_cleanup_discovery_resources(vport);
9061 spin_lock_irqsave(&phba->hbalock, flags);
9062 for (i = 0; i < psli->num_rings; i++) {
9063 pring = &psli->ring[i];
9064 prev_pring_flag = pring->flag;
9065 /* Only slow rings */
9066 if (pring->ringno == LPFC_ELS_RING) {
9067 pring->flag |= LPFC_DEFERRED_RING_EVENT;
9068 /* Set the lpfc data pending flag */
9069 set_bit(LPFC_DATA_READY, &phba->data_flags);
9072 * Error everything on the txq since these iocbs have not been
9073 * given to the FW yet.
9075 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
9076 if (iocb->vport != vport)
9078 list_move_tail(&iocb->list, &completions);
9081 /* Next issue ABTS for everything on the txcmplq */
9082 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq,
9084 if (iocb->vport != vport)
9086 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
9089 pring->flag = prev_pring_flag;
9092 spin_unlock_irqrestore(&phba->hbalock, flags);
9094 /* Cancel all the IOCBs from the completions list */
9095 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9101 * lpfc_sli_hba_down - Resource cleanup function for the HBA
9102 * @phba: Pointer to HBA context object.
9104 * This function cleans up all iocb, buffers, mailbox commands
9105 * while shutting down the HBA. This function is called with no
9106 * lock held and always returns 1.
9107 * This function does the following to cleanup driver resources:
9108 * - Free discovery resources for each virtual port
9109 * - Cleanup any pending fabric iocbs
9110 * - Iterate through the iocb txq and free each entry
9112 * - Free up any buffer posted to the HBA
9113 * - Free mailbox commands in the mailbox queue.
9116 lpfc_sli_hba_down(struct lpfc_hba *phba)
9118 LIST_HEAD(completions);
9119 struct lpfc_sli *psli = &phba->sli;
9120 struct lpfc_sli_ring *pring;
9121 struct lpfc_dmabuf *buf_ptr;
9122 unsigned long flags = 0;
9125 /* Shutdown the mailbox command sub-system */
9126 lpfc_sli_mbox_sys_shutdown(phba, LPFC_MBX_WAIT);
9128 lpfc_hba_down_prep(phba);
9130 lpfc_fabric_abort_hba(phba);
9132 spin_lock_irqsave(&phba->hbalock, flags);
9133 for (i = 0; i < psli->num_rings; i++) {
9134 pring = &psli->ring[i];
9135 /* Only slow rings */
9136 if (pring->ringno == LPFC_ELS_RING) {
9137 pring->flag |= LPFC_DEFERRED_RING_EVENT;
9138 /* Set the lpfc data pending flag */
9139 set_bit(LPFC_DATA_READY, &phba->data_flags);
9143 * Error everything on the txq since these iocbs have not been
9144 * given to the FW yet.
9146 list_splice_init(&pring->txq, &completions);
9148 spin_unlock_irqrestore(&phba->hbalock, flags);
9150 /* Cancel all the IOCBs from the completions list */
9151 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9154 spin_lock_irqsave(&phba->hbalock, flags);
9155 list_splice_init(&phba->elsbuf, &completions);
9156 phba->elsbuf_cnt = 0;
9157 phba->elsbuf_prev_cnt = 0;
9158 spin_unlock_irqrestore(&phba->hbalock, flags);
9160 while (!list_empty(&completions)) {
9161 list_remove_head(&completions, buf_ptr,
9162 struct lpfc_dmabuf, list);
9163 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
9167 /* Return any active mbox cmds */
9168 del_timer_sync(&psli->mbox_tmo);
9170 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
9171 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
9172 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
9178 * lpfc_sli_pcimem_bcopy - SLI memory copy function
9179 * @srcp: Source memory pointer.
9180 * @destp: Destination memory pointer.
9181 * @cnt: Number of words required to be copied.
9183 * This function is used for copying data between driver memory
9184 * and the SLI memory. This function also changes the endianness
9185 * of each word if native endianness is different from SLI
9186 * endianness. This function can be called with or without
9190 lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
9192 uint32_t *src = srcp;
9193 uint32_t *dest = destp;
9197 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
9199 ldata = le32_to_cpu(ldata);
9208 * lpfc_sli_bemem_bcopy - SLI memory copy function
9209 * @srcp: Source memory pointer.
9210 * @destp: Destination memory pointer.
9211 * @cnt: Number of words required to be copied.
9213 * This function is used for copying data between a data structure
9214 * with big endian representation to local endianness.
9215 * This function can be called with or without lock.
9218 lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
9220 uint32_t *src = srcp;
9221 uint32_t *dest = destp;
9225 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
9227 ldata = be32_to_cpu(ldata);
9235 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
9236 * @phba: Pointer to HBA context object.
9237 * @pring: Pointer to driver SLI ring object.
9238 * @mp: Pointer to driver buffer object.
9240 * This function is called with no lock held.
9241 * It always return zero after adding the buffer to the postbufq
9245 lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9246 struct lpfc_dmabuf *mp)
9248 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
9250 spin_lock_irq(&phba->hbalock);
9251 list_add_tail(&mp->list, &pring->postbufq);
9252 pring->postbufq_cnt++;
9253 spin_unlock_irq(&phba->hbalock);
9258 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
9259 * @phba: Pointer to HBA context object.
9261 * When HBQ is enabled, buffers are searched based on tags. This function
9262 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
9263 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
9264 * does not conflict with tags of buffer posted for unsolicited events.
9265 * The function returns the allocated tag. The function is called with
9269 lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
9271 spin_lock_irq(&phba->hbalock);
9272 phba->buffer_tag_count++;
9274 * Always set the QUE_BUFTAG_BIT to distiguish between
9275 * a tag assigned by HBQ.
9277 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
9278 spin_unlock_irq(&phba->hbalock);
9279 return phba->buffer_tag_count;
9283 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
9284 * @phba: Pointer to HBA context object.
9285 * @pring: Pointer to driver SLI ring object.
9288 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
9289 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
9290 * iocb is posted to the response ring with the tag of the buffer.
9291 * This function searches the pring->postbufq list using the tag
9292 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
9293 * iocb. If the buffer is found then lpfc_dmabuf object of the
9294 * buffer is returned to the caller else NULL is returned.
9295 * This function is called with no lock held.
9297 struct lpfc_dmabuf *
9298 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9301 struct lpfc_dmabuf *mp, *next_mp;
9302 struct list_head *slp = &pring->postbufq;
9304 /* Search postbufq, from the beginning, looking for a match on tag */
9305 spin_lock_irq(&phba->hbalock);
9306 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
9307 if (mp->buffer_tag == tag) {
9308 list_del_init(&mp->list);
9309 pring->postbufq_cnt--;
9310 spin_unlock_irq(&phba->hbalock);
9315 spin_unlock_irq(&phba->hbalock);
9316 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9317 "0402 Cannot find virtual addr for buffer tag on "
9318 "ring %d Data x%lx x%p x%p x%x\n",
9319 pring->ringno, (unsigned long) tag,
9320 slp->next, slp->prev, pring->postbufq_cnt);
9326 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
9327 * @phba: Pointer to HBA context object.
9328 * @pring: Pointer to driver SLI ring object.
9329 * @phys: DMA address of the buffer.
9331 * This function searches the buffer list using the dma_address
9332 * of unsolicited event to find the driver's lpfc_dmabuf object
9333 * corresponding to the dma_address. The function returns the
9334 * lpfc_dmabuf object if a buffer is found else it returns NULL.
9335 * This function is called by the ct and els unsolicited event
9336 * handlers to get the buffer associated with the unsolicited
9339 * This function is called with no lock held.
9341 struct lpfc_dmabuf *
9342 lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9345 struct lpfc_dmabuf *mp, *next_mp;
9346 struct list_head *slp = &pring->postbufq;
9348 /* Search postbufq, from the beginning, looking for a match on phys */
9349 spin_lock_irq(&phba->hbalock);
9350 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
9351 if (mp->phys == phys) {
9352 list_del_init(&mp->list);
9353 pring->postbufq_cnt--;
9354 spin_unlock_irq(&phba->hbalock);
9359 spin_unlock_irq(&phba->hbalock);
9360 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9361 "0410 Cannot find virtual addr for mapped buf on "
9362 "ring %d Data x%llx x%p x%p x%x\n",
9363 pring->ringno, (unsigned long long)phys,
9364 slp->next, slp->prev, pring->postbufq_cnt);
9369 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
9370 * @phba: Pointer to HBA context object.
9371 * @cmdiocb: Pointer to driver command iocb object.
9372 * @rspiocb: Pointer to driver response iocb object.
9374 * This function is the completion handler for the abort iocbs for
9375 * ELS commands. This function is called from the ELS ring event
9376 * handler with no lock held. This function frees memory resources
9377 * associated with the abort iocb.
9380 lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9381 struct lpfc_iocbq *rspiocb)
9383 IOCB_t *irsp = &rspiocb->iocb;
9384 uint16_t abort_iotag, abort_context;
9385 struct lpfc_iocbq *abort_iocb = NULL;
9387 if (irsp->ulpStatus) {
9390 * Assume that the port already completed and returned, or
9391 * will return the iocb. Just Log the message.
9393 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
9394 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
9396 spin_lock_irq(&phba->hbalock);
9397 if (phba->sli_rev < LPFC_SLI_REV4) {
9398 if (abort_iotag != 0 &&
9399 abort_iotag <= phba->sli.last_iotag)
9401 phba->sli.iocbq_lookup[abort_iotag];
9403 /* For sli4 the abort_tag is the XRI,
9404 * so the abort routine puts the iotag of the iocb
9405 * being aborted in the context field of the abort
9408 abort_iocb = phba->sli.iocbq_lookup[abort_context];
9410 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI,
9411 "0327 Cannot abort els iocb %p "
9412 "with tag %x context %x, abort status %x, "
9414 abort_iocb, abort_iotag, abort_context,
9415 irsp->ulpStatus, irsp->un.ulpWord[4]);
9417 spin_unlock_irq(&phba->hbalock);
9419 lpfc_sli_release_iocbq(phba, cmdiocb);
9424 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
9425 * @phba: Pointer to HBA context object.
9426 * @cmdiocb: Pointer to driver command iocb object.
9427 * @rspiocb: Pointer to driver response iocb object.
9429 * The function is called from SLI ring event handler with no
9430 * lock held. This function is the completion handler for ELS commands
9431 * which are aborted. The function frees memory resources used for
9432 * the aborted ELS commands.
9435 lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9436 struct lpfc_iocbq *rspiocb)
9438 IOCB_t *irsp = &rspiocb->iocb;
9440 /* ELS cmd tag <ulpIoTag> completes */
9441 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
9442 "0139 Ignoring ELS cmd tag x%x completion Data: "
9444 irsp->ulpIoTag, irsp->ulpStatus,
9445 irsp->un.ulpWord[4], irsp->ulpTimeout);
9446 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
9447 lpfc_ct_free_iocb(phba, cmdiocb);
9449 lpfc_els_free_iocb(phba, cmdiocb);
9454 * lpfc_sli_abort_iotag_issue - Issue abort for a command iocb
9455 * @phba: Pointer to HBA context object.
9456 * @pring: Pointer to driver SLI ring object.
9457 * @cmdiocb: Pointer to driver command iocb object.
9459 * This function issues an abort iocb for the provided command iocb down to
9460 * the port. Other than the case the outstanding command iocb is an abort
9461 * request, this function issues abort out unconditionally. This function is
9462 * called with hbalock held. The function returns 0 when it fails due to
9463 * memory allocation failure or when the command iocb is an abort request.
9466 lpfc_sli_abort_iotag_issue(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9467 struct lpfc_iocbq *cmdiocb)
9469 struct lpfc_vport *vport = cmdiocb->vport;
9470 struct lpfc_iocbq *abtsiocbp;
9471 IOCB_t *icmd = NULL;
9472 IOCB_t *iabt = NULL;
9474 unsigned long iflags;
9477 * There are certain command types we don't want to abort. And we
9478 * don't want to abort commands that are already in the process of
9481 icmd = &cmdiocb->iocb;
9482 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
9483 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
9484 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
9487 /* issue ABTS for this IOCB based on iotag */
9488 abtsiocbp = __lpfc_sli_get_iocbq(phba);
9489 if (abtsiocbp == NULL)
9492 /* This signals the response to set the correct status
9493 * before calling the completion handler
9495 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
9497 iabt = &abtsiocbp->iocb;
9498 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
9499 iabt->un.acxri.abortContextTag = icmd->ulpContext;
9500 if (phba->sli_rev == LPFC_SLI_REV4) {
9501 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
9502 iabt->un.acxri.abortContextTag = cmdiocb->iotag;
9505 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
9507 iabt->ulpClass = icmd->ulpClass;
9509 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
9510 abtsiocbp->fcp_wqidx = cmdiocb->fcp_wqidx;
9511 if (cmdiocb->iocb_flag & LPFC_IO_FCP)
9512 abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
9514 if (phba->link_state >= LPFC_LINK_UP)
9515 iabt->ulpCommand = CMD_ABORT_XRI_CN;
9517 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
9519 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
9521 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
9522 "0339 Abort xri x%x, original iotag x%x, "
9523 "abort cmd iotag x%x\n",
9524 iabt->un.acxri.abortIoTag,
9525 iabt->un.acxri.abortContextTag,
9528 if (phba->sli_rev == LPFC_SLI_REV4) {
9529 /* Note: both hbalock and ring_lock need to be set here */
9530 spin_lock_irqsave(&pring->ring_lock, iflags);
9531 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
9533 spin_unlock_irqrestore(&pring->ring_lock, iflags);
9535 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
9540 __lpfc_sli_release_iocbq(phba, abtsiocbp);
9543 * Caller to this routine should check for IOCB_ERROR
9544 * and handle it properly. This routine no longer removes
9545 * iocb off txcmplq and call compl in case of IOCB_ERROR.
9551 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
9552 * @phba: Pointer to HBA context object.
9553 * @pring: Pointer to driver SLI ring object.
9554 * @cmdiocb: Pointer to driver command iocb object.
9556 * This function issues an abort iocb for the provided command iocb. In case
9557 * of unloading, the abort iocb will not be issued to commands on the ELS
9558 * ring. Instead, the callback function shall be changed to those commands
9559 * so that nothing happens when them finishes. This function is called with
9560 * hbalock held. The function returns 0 when the command iocb is an abort
9564 lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9565 struct lpfc_iocbq *cmdiocb)
9567 struct lpfc_vport *vport = cmdiocb->vport;
9568 int retval = IOCB_ERROR;
9569 IOCB_t *icmd = NULL;
9572 * There are certain command types we don't want to abort. And we
9573 * don't want to abort commands that are already in the process of
9576 icmd = &cmdiocb->iocb;
9577 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
9578 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
9579 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
9583 * If we're unloading, don't abort iocb on the ELS ring, but change
9584 * the callback so that nothing happens when it finishes.
9586 if ((vport->load_flag & FC_UNLOADING) &&
9587 (pring->ringno == LPFC_ELS_RING)) {
9588 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
9589 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
9591 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
9592 goto abort_iotag_exit;
9595 /* Now, we try to issue the abort to the cmdiocb out */
9596 retval = lpfc_sli_abort_iotag_issue(phba, pring, cmdiocb);
9600 * Caller to this routine should check for IOCB_ERROR
9601 * and handle it properly. This routine no longer removes
9602 * iocb off txcmplq and call compl in case of IOCB_ERROR.
9608 * lpfc_sli_iocb_ring_abort - Unconditionally abort all iocbs on an iocb ring
9609 * @phba: Pointer to HBA context object.
9610 * @pring: Pointer to driver SLI ring object.
9612 * This function aborts all iocbs in the given ring and frees all the iocb
9613 * objects in txq. This function issues abort iocbs unconditionally for all
9614 * the iocb commands in txcmplq. The iocbs in the txcmplq is not guaranteed
9615 * to complete before the return of this function. The caller is not required
9616 * to hold any locks.
9619 lpfc_sli_iocb_ring_abort(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
9621 LIST_HEAD(completions);
9622 struct lpfc_iocbq *iocb, *next_iocb;
9624 if (pring->ringno == LPFC_ELS_RING)
9625 lpfc_fabric_abort_hba(phba);
9627 spin_lock_irq(&phba->hbalock);
9629 /* Take off all the iocbs on txq for cancelling */
9630 list_splice_init(&pring->txq, &completions);
9633 /* Next issue ABTS for everything on the txcmplq */
9634 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
9635 lpfc_sli_abort_iotag_issue(phba, pring, iocb);
9637 spin_unlock_irq(&phba->hbalock);
9639 /* Cancel all the IOCBs from the completions list */
9640 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9645 * lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
9646 * @phba: pointer to lpfc HBA data structure.
9648 * This routine will abort all pending and outstanding iocbs to an HBA.
9651 lpfc_sli_hba_iocb_abort(struct lpfc_hba *phba)
9653 struct lpfc_sli *psli = &phba->sli;
9654 struct lpfc_sli_ring *pring;
9657 for (i = 0; i < psli->num_rings; i++) {
9658 pring = &psli->ring[i];
9659 lpfc_sli_iocb_ring_abort(phba, pring);
9664 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
9665 * @iocbq: Pointer to driver iocb object.
9666 * @vport: Pointer to driver virtual port object.
9667 * @tgt_id: SCSI ID of the target.
9668 * @lun_id: LUN ID of the scsi device.
9669 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
9671 * This function acts as an iocb filter for functions which abort or count
9672 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
9673 * 0 if the filtering criteria is met for the given iocb and will return
9674 * 1 if the filtering criteria is not met.
9675 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
9676 * given iocb is for the SCSI device specified by vport, tgt_id and
9678 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
9679 * given iocb is for the SCSI target specified by vport and tgt_id
9681 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
9682 * given iocb is for the SCSI host associated with the given vport.
9683 * This function is called with no locks held.
9686 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
9687 uint16_t tgt_id, uint64_t lun_id,
9688 lpfc_ctx_cmd ctx_cmd)
9690 struct lpfc_scsi_buf *lpfc_cmd;
9693 if (!(iocbq->iocb_flag & LPFC_IO_FCP))
9696 if (iocbq->vport != vport)
9699 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
9701 if (lpfc_cmd->pCmd == NULL)
9706 if ((lpfc_cmd->rdata->pnode) &&
9707 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
9708 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
9712 if ((lpfc_cmd->rdata->pnode) &&
9713 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
9720 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
9729 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
9730 * @vport: Pointer to virtual port.
9731 * @tgt_id: SCSI ID of the target.
9732 * @lun_id: LUN ID of the scsi device.
9733 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
9735 * This function returns number of FCP commands pending for the vport.
9736 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
9737 * commands pending on the vport associated with SCSI device specified
9738 * by tgt_id and lun_id parameters.
9739 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
9740 * commands pending on the vport associated with SCSI target specified
9741 * by tgt_id parameter.
9742 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
9743 * commands pending on the vport.
9744 * This function returns the number of iocbs which satisfy the filter.
9745 * This function is called without any lock held.
9748 lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
9749 lpfc_ctx_cmd ctx_cmd)
9751 struct lpfc_hba *phba = vport->phba;
9752 struct lpfc_iocbq *iocbq;
9755 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
9756 iocbq = phba->sli.iocbq_lookup[i];
9758 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
9767 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
9768 * @phba: Pointer to HBA context object
9769 * @cmdiocb: Pointer to command iocb object.
9770 * @rspiocb: Pointer to response iocb object.
9772 * This function is called when an aborted FCP iocb completes. This
9773 * function is called by the ring event handler with no lock held.
9774 * This function frees the iocb.
9777 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9778 struct lpfc_iocbq *rspiocb)
9780 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9781 "3096 ABORT_XRI_CN completing on xri x%x "
9782 "original iotag x%x, abort cmd iotag x%x "
9783 "status 0x%x, reason 0x%x\n",
9784 cmdiocb->iocb.un.acxri.abortContextTag,
9785 cmdiocb->iocb.un.acxri.abortIoTag,
9786 cmdiocb->iotag, rspiocb->iocb.ulpStatus,
9787 rspiocb->iocb.un.ulpWord[4]);
9788 lpfc_sli_release_iocbq(phba, cmdiocb);
9793 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
9794 * @vport: Pointer to virtual port.
9795 * @pring: Pointer to driver SLI ring object.
9796 * @tgt_id: SCSI ID of the target.
9797 * @lun_id: LUN ID of the scsi device.
9798 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
9800 * This function sends an abort command for every SCSI command
9801 * associated with the given virtual port pending on the ring
9802 * filtered by lpfc_sli_validate_fcp_iocb function.
9803 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
9804 * FCP iocbs associated with lun specified by tgt_id and lun_id
9806 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
9807 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
9808 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
9809 * FCP iocbs associated with virtual port.
9810 * This function returns number of iocbs it failed to abort.
9811 * This function is called with no locks held.
9814 lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
9815 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
9817 struct lpfc_hba *phba = vport->phba;
9818 struct lpfc_iocbq *iocbq;
9819 struct lpfc_iocbq *abtsiocb;
9821 int errcnt = 0, ret_val = 0;
9824 for (i = 1; i <= phba->sli.last_iotag; i++) {
9825 iocbq = phba->sli.iocbq_lookup[i];
9827 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
9831 /* issue ABTS for this IOCB based on iotag */
9832 abtsiocb = lpfc_sli_get_iocbq(phba);
9833 if (abtsiocb == NULL) {
9839 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
9840 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
9841 if (phba->sli_rev == LPFC_SLI_REV4)
9842 abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
9844 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
9845 abtsiocb->iocb.ulpLe = 1;
9846 abtsiocb->iocb.ulpClass = cmd->ulpClass;
9847 abtsiocb->vport = phba->pport;
9849 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
9850 abtsiocb->fcp_wqidx = iocbq->fcp_wqidx;
9851 if (iocbq->iocb_flag & LPFC_IO_FCP)
9852 abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
9854 if (lpfc_is_link_up(phba))
9855 abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
9857 abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
9859 /* Setup callback routine and issue the command. */
9860 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
9861 ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
9863 if (ret_val == IOCB_ERROR) {
9864 lpfc_sli_release_iocbq(phba, abtsiocb);
9874 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
9875 * @phba: Pointer to HBA context object.
9876 * @cmdiocbq: Pointer to command iocb.
9877 * @rspiocbq: Pointer to response iocb.
9879 * This function is the completion handler for iocbs issued using
9880 * lpfc_sli_issue_iocb_wait function. This function is called by the
9881 * ring event handler function without any lock held. This function
9882 * can be called from both worker thread context and interrupt
9883 * context. This function also can be called from other thread which
9884 * cleans up the SLI layer objects.
9885 * This function copy the contents of the response iocb to the
9886 * response iocb memory object provided by the caller of
9887 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
9888 * sleeps for the iocb completion.
9891 lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
9892 struct lpfc_iocbq *cmdiocbq,
9893 struct lpfc_iocbq *rspiocbq)
9895 wait_queue_head_t *pdone_q;
9896 unsigned long iflags;
9897 struct lpfc_scsi_buf *lpfc_cmd;
9899 spin_lock_irqsave(&phba->hbalock, iflags);
9900 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
9901 if (cmdiocbq->context2 && rspiocbq)
9902 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
9903 &rspiocbq->iocb, sizeof(IOCB_t));
9905 /* Set the exchange busy flag for task management commands */
9906 if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) &&
9907 !(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) {
9908 lpfc_cmd = container_of(cmdiocbq, struct lpfc_scsi_buf,
9910 lpfc_cmd->exch_busy = rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY;
9913 pdone_q = cmdiocbq->context_un.wait_queue;
9916 spin_unlock_irqrestore(&phba->hbalock, iflags);
9921 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
9922 * @phba: Pointer to HBA context object..
9923 * @piocbq: Pointer to command iocb.
9924 * @flag: Flag to test.
9926 * This routine grabs the hbalock and then test the iocb_flag to
9927 * see if the passed in flag is set.
9930 * 0 if flag is not set.
9933 lpfc_chk_iocb_flg(struct lpfc_hba *phba,
9934 struct lpfc_iocbq *piocbq, uint32_t flag)
9936 unsigned long iflags;
9939 spin_lock_irqsave(&phba->hbalock, iflags);
9940 ret = piocbq->iocb_flag & flag;
9941 spin_unlock_irqrestore(&phba->hbalock, iflags);
9947 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
9948 * @phba: Pointer to HBA context object..
9949 * @pring: Pointer to sli ring.
9950 * @piocb: Pointer to command iocb.
9951 * @prspiocbq: Pointer to response iocb.
9952 * @timeout: Timeout in number of seconds.
9954 * This function issues the iocb to firmware and waits for the
9955 * iocb to complete. If the iocb command is not
9956 * completed within timeout seconds, it returns IOCB_TIMEDOUT.
9957 * Caller should not free the iocb resources if this function
9958 * returns IOCB_TIMEDOUT.
9959 * The function waits for the iocb completion using an
9960 * non-interruptible wait.
9961 * This function will sleep while waiting for iocb completion.
9962 * So, this function should not be called from any context which
9963 * does not allow sleeping. Due to the same reason, this function
9964 * cannot be called with interrupt disabled.
9965 * This function assumes that the iocb completions occur while
9966 * this function sleep. So, this function cannot be called from
9967 * the thread which process iocb completion for this ring.
9968 * This function clears the iocb_flag of the iocb object before
9969 * issuing the iocb and the iocb completion handler sets this
9970 * flag and wakes this thread when the iocb completes.
9971 * The contents of the response iocb will be copied to prspiocbq
9972 * by the completion handler when the command completes.
9973 * This function returns IOCB_SUCCESS when success.
9974 * This function is called with no lock held.
9977 lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
9978 uint32_t ring_number,
9979 struct lpfc_iocbq *piocb,
9980 struct lpfc_iocbq *prspiocbq,
9983 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
9984 long timeleft, timeout_req = 0;
9985 int retval = IOCB_SUCCESS;
9987 struct lpfc_iocbq *iocb;
9989 int txcmplq_cnt = 0;
9990 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
9992 * If the caller has provided a response iocbq buffer, then context2
9993 * is NULL or its an error.
9996 if (piocb->context2)
9998 piocb->context2 = prspiocbq;
10001 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
10002 piocb->context_un.wait_queue = &done_q;
10003 piocb->iocb_flag &= ~LPFC_IO_WAKE;
10005 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
10006 if (lpfc_readl(phba->HCregaddr, &creg_val))
10008 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
10009 writel(creg_val, phba->HCregaddr);
10010 readl(phba->HCregaddr); /* flush */
10013 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb,
10014 SLI_IOCB_RET_IOCB);
10015 if (retval == IOCB_SUCCESS) {
10016 timeout_req = msecs_to_jiffies(timeout * 1000);
10017 timeleft = wait_event_timeout(done_q,
10018 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
10021 if (piocb->iocb_flag & LPFC_IO_WAKE) {
10022 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10023 "0331 IOCB wake signaled\n");
10024 } else if (timeleft == 0) {
10025 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10026 "0338 IOCB wait timeout error - no "
10027 "wake response Data x%x\n", timeout);
10028 retval = IOCB_TIMEDOUT;
10030 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10031 "0330 IOCB wake NOT set, "
10033 timeout, (timeleft / jiffies));
10034 retval = IOCB_TIMEDOUT;
10036 } else if (retval == IOCB_BUSY) {
10037 if (phba->cfg_log_verbose & LOG_SLI) {
10038 list_for_each_entry(iocb, &pring->txq, list) {
10041 list_for_each_entry(iocb, &pring->txcmplq, list) {
10044 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10045 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
10046 phba->iocb_cnt, txq_cnt, txcmplq_cnt);
10050 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10051 "0332 IOCB wait issue failed, Data x%x\n",
10053 retval = IOCB_ERROR;
10056 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
10057 if (lpfc_readl(phba->HCregaddr, &creg_val))
10059 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
10060 writel(creg_val, phba->HCregaddr);
10061 readl(phba->HCregaddr); /* flush */
10065 piocb->context2 = NULL;
10067 piocb->context_un.wait_queue = NULL;
10068 piocb->iocb_cmpl = NULL;
10073 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
10074 * @phba: Pointer to HBA context object.
10075 * @pmboxq: Pointer to driver mailbox object.
10076 * @timeout: Timeout in number of seconds.
10078 * This function issues the mailbox to firmware and waits for the
10079 * mailbox command to complete. If the mailbox command is not
10080 * completed within timeout seconds, it returns MBX_TIMEOUT.
10081 * The function waits for the mailbox completion using an
10082 * interruptible wait. If the thread is woken up due to a
10083 * signal, MBX_TIMEOUT error is returned to the caller. Caller
10084 * should not free the mailbox resources, if this function returns
10086 * This function will sleep while waiting for mailbox completion.
10087 * So, this function should not be called from any context which
10088 * does not allow sleeping. Due to the same reason, this function
10089 * cannot be called with interrupt disabled.
10090 * This function assumes that the mailbox completion occurs while
10091 * this function sleep. So, this function cannot be called from
10092 * the worker thread which processes mailbox completion.
10093 * This function is called in the context of HBA management
10095 * This function returns MBX_SUCCESS when successful.
10096 * This function is called with no lock held.
10099 lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
10102 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
10104 unsigned long flag;
10106 /* The caller must leave context1 empty. */
10107 if (pmboxq->context1)
10108 return MBX_NOT_FINISHED;
10110 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
10111 /* setup wake call as IOCB callback */
10112 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
10113 /* setup context field to pass wait_queue pointer to wake function */
10114 pmboxq->context1 = &done_q;
10116 /* now issue the command */
10117 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
10118 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
10119 wait_event_interruptible_timeout(done_q,
10120 pmboxq->mbox_flag & LPFC_MBX_WAKE,
10121 msecs_to_jiffies(timeout * 1000));
10123 spin_lock_irqsave(&phba->hbalock, flag);
10124 pmboxq->context1 = NULL;
10126 * if LPFC_MBX_WAKE flag is set the mailbox is completed
10127 * else do not free the resources.
10129 if (pmboxq->mbox_flag & LPFC_MBX_WAKE) {
10130 retval = MBX_SUCCESS;
10131 lpfc_sli4_swap_str(phba, pmboxq);
10133 retval = MBX_TIMEOUT;
10134 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10136 spin_unlock_irqrestore(&phba->hbalock, flag);
10143 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
10144 * @phba: Pointer to HBA context.
10146 * This function is called to shutdown the driver's mailbox sub-system.
10147 * It first marks the mailbox sub-system is in a block state to prevent
10148 * the asynchronous mailbox command from issued off the pending mailbox
10149 * command queue. If the mailbox command sub-system shutdown is due to
10150 * HBA error conditions such as EEH or ERATT, this routine shall invoke
10151 * the mailbox sub-system flush routine to forcefully bring down the
10152 * mailbox sub-system. Otherwise, if it is due to normal condition (such
10153 * as with offline or HBA function reset), this routine will wait for the
10154 * outstanding mailbox command to complete before invoking the mailbox
10155 * sub-system flush routine to gracefully bring down mailbox sub-system.
10158 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba, int mbx_action)
10160 struct lpfc_sli *psli = &phba->sli;
10161 unsigned long timeout;
10163 if (mbx_action == LPFC_MBX_NO_WAIT) {
10164 /* delay 100ms for port state */
10166 lpfc_sli_mbox_sys_flush(phba);
10169 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
10171 spin_lock_irq(&phba->hbalock);
10172 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
10174 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
10175 /* Determine how long we might wait for the active mailbox
10176 * command to be gracefully completed by firmware.
10178 if (phba->sli.mbox_active)
10179 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
10180 phba->sli.mbox_active) *
10182 spin_unlock_irq(&phba->hbalock);
10184 while (phba->sli.mbox_active) {
10185 /* Check active mailbox complete status every 2ms */
10187 if (time_after(jiffies, timeout))
10188 /* Timeout, let the mailbox flush routine to
10189 * forcefully release active mailbox command
10194 spin_unlock_irq(&phba->hbalock);
10196 lpfc_sli_mbox_sys_flush(phba);
10200 * lpfc_sli_eratt_read - read sli-3 error attention events
10201 * @phba: Pointer to HBA context.
10203 * This function is called to read the SLI3 device error attention registers
10204 * for possible error attention events. The caller must hold the hostlock
10205 * with spin_lock_irq().
10207 * This function returns 1 when there is Error Attention in the Host Attention
10208 * Register and returns 0 otherwise.
10211 lpfc_sli_eratt_read(struct lpfc_hba *phba)
10215 /* Read chip Host Attention (HA) register */
10216 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10219 if (ha_copy & HA_ERATT) {
10220 /* Read host status register to retrieve error event */
10221 if (lpfc_sli_read_hs(phba))
10224 /* Check if there is a deferred error condition is active */
10225 if ((HS_FFER1 & phba->work_hs) &&
10226 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
10227 HS_FFER6 | HS_FFER7 | HS_FFER8) & phba->work_hs)) {
10228 phba->hba_flag |= DEFER_ERATT;
10229 /* Clear all interrupt enable conditions */
10230 writel(0, phba->HCregaddr);
10231 readl(phba->HCregaddr);
10234 /* Set the driver HA work bitmap */
10235 phba->work_ha |= HA_ERATT;
10236 /* Indicate polling handles this ERATT */
10237 phba->hba_flag |= HBA_ERATT_HANDLED;
10243 /* Set the driver HS work bitmap */
10244 phba->work_hs |= UNPLUG_ERR;
10245 /* Set the driver HA work bitmap */
10246 phba->work_ha |= HA_ERATT;
10247 /* Indicate polling handles this ERATT */
10248 phba->hba_flag |= HBA_ERATT_HANDLED;
10253 * lpfc_sli4_eratt_read - read sli-4 error attention events
10254 * @phba: Pointer to HBA context.
10256 * This function is called to read the SLI4 device error attention registers
10257 * for possible error attention events. The caller must hold the hostlock
10258 * with spin_lock_irq().
10260 * This function returns 1 when there is Error Attention in the Host Attention
10261 * Register and returns 0 otherwise.
10264 lpfc_sli4_eratt_read(struct lpfc_hba *phba)
10266 uint32_t uerr_sta_hi, uerr_sta_lo;
10267 uint32_t if_type, portsmphr;
10268 struct lpfc_register portstat_reg;
10271 * For now, use the SLI4 device internal unrecoverable error
10272 * registers for error attention. This can be changed later.
10274 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10276 case LPFC_SLI_INTF_IF_TYPE_0:
10277 if (lpfc_readl(phba->sli4_hba.u.if_type0.UERRLOregaddr,
10279 lpfc_readl(phba->sli4_hba.u.if_type0.UERRHIregaddr,
10281 phba->work_hs |= UNPLUG_ERR;
10282 phba->work_ha |= HA_ERATT;
10283 phba->hba_flag |= HBA_ERATT_HANDLED;
10286 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
10287 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
10288 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10289 "1423 HBA Unrecoverable error: "
10290 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
10291 "ue_mask_lo_reg=0x%x, "
10292 "ue_mask_hi_reg=0x%x\n",
10293 uerr_sta_lo, uerr_sta_hi,
10294 phba->sli4_hba.ue_mask_lo,
10295 phba->sli4_hba.ue_mask_hi);
10296 phba->work_status[0] = uerr_sta_lo;
10297 phba->work_status[1] = uerr_sta_hi;
10298 phba->work_ha |= HA_ERATT;
10299 phba->hba_flag |= HBA_ERATT_HANDLED;
10303 case LPFC_SLI_INTF_IF_TYPE_2:
10304 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
10305 &portstat_reg.word0) ||
10306 lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
10308 phba->work_hs |= UNPLUG_ERR;
10309 phba->work_ha |= HA_ERATT;
10310 phba->hba_flag |= HBA_ERATT_HANDLED;
10313 if (bf_get(lpfc_sliport_status_err, &portstat_reg)) {
10314 phba->work_status[0] =
10315 readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
10316 phba->work_status[1] =
10317 readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
10318 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10319 "2885 Port Status Event: "
10320 "port status reg 0x%x, "
10321 "port smphr reg 0x%x, "
10322 "error 1=0x%x, error 2=0x%x\n",
10323 portstat_reg.word0,
10325 phba->work_status[0],
10326 phba->work_status[1]);
10327 phba->work_ha |= HA_ERATT;
10328 phba->hba_flag |= HBA_ERATT_HANDLED;
10332 case LPFC_SLI_INTF_IF_TYPE_1:
10334 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10335 "2886 HBA Error Attention on unsupported "
10336 "if type %d.", if_type);
10344 * lpfc_sli_check_eratt - check error attention events
10345 * @phba: Pointer to HBA context.
10347 * This function is called from timer soft interrupt context to check HBA's
10348 * error attention register bit for error attention events.
10350 * This function returns 1 when there is Error Attention in the Host Attention
10351 * Register and returns 0 otherwise.
10354 lpfc_sli_check_eratt(struct lpfc_hba *phba)
10358 /* If somebody is waiting to handle an eratt, don't process it
10359 * here. The brdkill function will do this.
10361 if (phba->link_flag & LS_IGNORE_ERATT)
10364 /* Check if interrupt handler handles this ERATT */
10365 spin_lock_irq(&phba->hbalock);
10366 if (phba->hba_flag & HBA_ERATT_HANDLED) {
10367 /* Interrupt handler has handled ERATT */
10368 spin_unlock_irq(&phba->hbalock);
10373 * If there is deferred error attention, do not check for error
10376 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10377 spin_unlock_irq(&phba->hbalock);
10381 /* If PCI channel is offline, don't process it */
10382 if (unlikely(pci_channel_offline(phba->pcidev))) {
10383 spin_unlock_irq(&phba->hbalock);
10387 switch (phba->sli_rev) {
10388 case LPFC_SLI_REV2:
10389 case LPFC_SLI_REV3:
10390 /* Read chip Host Attention (HA) register */
10391 ha_copy = lpfc_sli_eratt_read(phba);
10393 case LPFC_SLI_REV4:
10394 /* Read device Uncoverable Error (UERR) registers */
10395 ha_copy = lpfc_sli4_eratt_read(phba);
10398 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10399 "0299 Invalid SLI revision (%d)\n",
10404 spin_unlock_irq(&phba->hbalock);
10410 * lpfc_intr_state_check - Check device state for interrupt handling
10411 * @phba: Pointer to HBA context.
10413 * This inline routine checks whether a device or its PCI slot is in a state
10414 * that the interrupt should be handled.
10416 * This function returns 0 if the device or the PCI slot is in a state that
10417 * interrupt should be handled, otherwise -EIO.
10420 lpfc_intr_state_check(struct lpfc_hba *phba)
10422 /* If the pci channel is offline, ignore all the interrupts */
10423 if (unlikely(pci_channel_offline(phba->pcidev)))
10426 /* Update device level interrupt statistics */
10427 phba->sli.slistat.sli_intr++;
10429 /* Ignore all interrupts during initialization. */
10430 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
10437 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
10438 * @irq: Interrupt number.
10439 * @dev_id: The device context pointer.
10441 * This function is directly called from the PCI layer as an interrupt
10442 * service routine when device with SLI-3 interface spec is enabled with
10443 * MSI-X multi-message interrupt mode and there are slow-path events in
10444 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
10445 * interrupt mode, this function is called as part of the device-level
10446 * interrupt handler. When the PCI slot is in error recovery or the HBA
10447 * is undergoing initialization, the interrupt handler will not process
10448 * the interrupt. The link attention and ELS ring attention events are
10449 * handled by the worker thread. The interrupt handler signals the worker
10450 * thread and returns for these events. This function is called without
10451 * any lock held. It gets the hbalock to access and update SLI data
10454 * This function returns IRQ_HANDLED when interrupt is handled else it
10455 * returns IRQ_NONE.
10458 lpfc_sli_sp_intr_handler(int irq, void *dev_id)
10460 struct lpfc_hba *phba;
10461 uint32_t ha_copy, hc_copy;
10462 uint32_t work_ha_copy;
10463 unsigned long status;
10464 unsigned long iflag;
10467 MAILBOX_t *mbox, *pmbox;
10468 struct lpfc_vport *vport;
10469 struct lpfc_nodelist *ndlp;
10470 struct lpfc_dmabuf *mp;
10475 * Get the driver's phba structure from the dev_id and
10476 * assume the HBA is not interrupting.
10478 phba = (struct lpfc_hba *)dev_id;
10480 if (unlikely(!phba))
10484 * Stuff needs to be attented to when this function is invoked as an
10485 * individual interrupt handler in MSI-X multi-message interrupt mode
10487 if (phba->intr_type == MSIX) {
10488 /* Check device state for handling interrupt */
10489 if (lpfc_intr_state_check(phba))
10491 /* Need to read HA REG for slow-path events */
10492 spin_lock_irqsave(&phba->hbalock, iflag);
10493 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10495 /* If somebody is waiting to handle an eratt don't process it
10496 * here. The brdkill function will do this.
10498 if (phba->link_flag & LS_IGNORE_ERATT)
10499 ha_copy &= ~HA_ERATT;
10500 /* Check the need for handling ERATT in interrupt handler */
10501 if (ha_copy & HA_ERATT) {
10502 if (phba->hba_flag & HBA_ERATT_HANDLED)
10503 /* ERATT polling has handled ERATT */
10504 ha_copy &= ~HA_ERATT;
10506 /* Indicate interrupt handler handles ERATT */
10507 phba->hba_flag |= HBA_ERATT_HANDLED;
10511 * If there is deferred error attention, do not check for any
10514 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10515 spin_unlock_irqrestore(&phba->hbalock, iflag);
10519 /* Clear up only attention source related to slow-path */
10520 if (lpfc_readl(phba->HCregaddr, &hc_copy))
10523 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
10524 HC_LAINT_ENA | HC_ERINT_ENA),
10526 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
10528 writel(hc_copy, phba->HCregaddr);
10529 readl(phba->HAregaddr); /* flush */
10530 spin_unlock_irqrestore(&phba->hbalock, iflag);
10532 ha_copy = phba->ha_copy;
10534 work_ha_copy = ha_copy & phba->work_ha_mask;
10536 if (work_ha_copy) {
10537 if (work_ha_copy & HA_LATT) {
10538 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
10540 * Turn off Link Attention interrupts
10541 * until CLEAR_LA done
10543 spin_lock_irqsave(&phba->hbalock, iflag);
10544 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
10545 if (lpfc_readl(phba->HCregaddr, &control))
10547 control &= ~HC_LAINT_ENA;
10548 writel(control, phba->HCregaddr);
10549 readl(phba->HCregaddr); /* flush */
10550 spin_unlock_irqrestore(&phba->hbalock, iflag);
10553 work_ha_copy &= ~HA_LATT;
10556 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
10558 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
10559 * the only slow ring.
10561 status = (work_ha_copy &
10562 (HA_RXMASK << (4*LPFC_ELS_RING)));
10563 status >>= (4*LPFC_ELS_RING);
10564 if (status & HA_RXMASK) {
10565 spin_lock_irqsave(&phba->hbalock, iflag);
10566 if (lpfc_readl(phba->HCregaddr, &control))
10569 lpfc_debugfs_slow_ring_trc(phba,
10570 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
10572 (uint32_t)phba->sli.slistat.sli_intr);
10574 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
10575 lpfc_debugfs_slow_ring_trc(phba,
10576 "ISR Disable ring:"
10577 "pwork:x%x hawork:x%x wait:x%x",
10578 phba->work_ha, work_ha_copy,
10579 (uint32_t)((unsigned long)
10580 &phba->work_waitq));
10583 ~(HC_R0INT_ENA << LPFC_ELS_RING);
10584 writel(control, phba->HCregaddr);
10585 readl(phba->HCregaddr); /* flush */
10588 lpfc_debugfs_slow_ring_trc(phba,
10589 "ISR slow ring: pwork:"
10590 "x%x hawork:x%x wait:x%x",
10591 phba->work_ha, work_ha_copy,
10592 (uint32_t)((unsigned long)
10593 &phba->work_waitq));
10595 spin_unlock_irqrestore(&phba->hbalock, iflag);
10598 spin_lock_irqsave(&phba->hbalock, iflag);
10599 if (work_ha_copy & HA_ERATT) {
10600 if (lpfc_sli_read_hs(phba))
10603 * Check if there is a deferred error condition
10606 if ((HS_FFER1 & phba->work_hs) &&
10607 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
10608 HS_FFER6 | HS_FFER7 | HS_FFER8) &
10610 phba->hba_flag |= DEFER_ERATT;
10611 /* Clear all interrupt enable conditions */
10612 writel(0, phba->HCregaddr);
10613 readl(phba->HCregaddr);
10617 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
10618 pmb = phba->sli.mbox_active;
10619 pmbox = &pmb->u.mb;
10621 vport = pmb->vport;
10623 /* First check out the status word */
10624 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
10625 if (pmbox->mbxOwner != OWN_HOST) {
10626 spin_unlock_irqrestore(&phba->hbalock, iflag);
10628 * Stray Mailbox Interrupt, mbxCommand <cmd>
10629 * mbxStatus <status>
10631 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
10633 "(%d):0304 Stray Mailbox "
10634 "Interrupt mbxCommand x%x "
10636 (vport ? vport->vpi : 0),
10639 /* clear mailbox attention bit */
10640 work_ha_copy &= ~HA_MBATT;
10642 phba->sli.mbox_active = NULL;
10643 spin_unlock_irqrestore(&phba->hbalock, iflag);
10644 phba->last_completion_time = jiffies;
10645 del_timer(&phba->sli.mbox_tmo);
10646 if (pmb->mbox_cmpl) {
10647 lpfc_sli_pcimem_bcopy(mbox, pmbox,
10649 if (pmb->out_ext_byte_len &&
10651 lpfc_sli_pcimem_bcopy(
10654 pmb->out_ext_byte_len);
10656 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
10657 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
10659 lpfc_debugfs_disc_trc(vport,
10660 LPFC_DISC_TRC_MBOX_VPORT,
10661 "MBOX dflt rpi: : "
10662 "status:x%x rpi:x%x",
10663 (uint32_t)pmbox->mbxStatus,
10664 pmbox->un.varWords[0], 0);
10666 if (!pmbox->mbxStatus) {
10667 mp = (struct lpfc_dmabuf *)
10669 ndlp = (struct lpfc_nodelist *)
10672 /* Reg_LOGIN of dflt RPI was
10673 * successful. new lets get
10674 * rid of the RPI using the
10675 * same mbox buffer.
10677 lpfc_unreg_login(phba,
10679 pmbox->un.varWords[0],
10682 lpfc_mbx_cmpl_dflt_rpi;
10683 pmb->context1 = mp;
10684 pmb->context2 = ndlp;
10685 pmb->vport = vport;
10686 rc = lpfc_sli_issue_mbox(phba,
10689 if (rc != MBX_BUSY)
10690 lpfc_printf_log(phba,
10692 LOG_MBOX | LOG_SLI,
10693 "0350 rc should have"
10694 "been MBX_BUSY\n");
10695 if (rc != MBX_NOT_FINISHED)
10696 goto send_current_mbox;
10700 &phba->pport->work_port_lock,
10702 phba->pport->work_port_events &=
10704 spin_unlock_irqrestore(
10705 &phba->pport->work_port_lock,
10707 lpfc_mbox_cmpl_put(phba, pmb);
10710 spin_unlock_irqrestore(&phba->hbalock, iflag);
10712 if ((work_ha_copy & HA_MBATT) &&
10713 (phba->sli.mbox_active == NULL)) {
10715 /* Process next mailbox command if there is one */
10717 rc = lpfc_sli_issue_mbox(phba, NULL,
10719 } while (rc == MBX_NOT_FINISHED);
10720 if (rc != MBX_SUCCESS)
10721 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
10722 LOG_SLI, "0349 rc should be "
10726 spin_lock_irqsave(&phba->hbalock, iflag);
10727 phba->work_ha |= work_ha_copy;
10728 spin_unlock_irqrestore(&phba->hbalock, iflag);
10729 lpfc_worker_wake_up(phba);
10731 return IRQ_HANDLED;
10733 spin_unlock_irqrestore(&phba->hbalock, iflag);
10734 return IRQ_HANDLED;
10736 } /* lpfc_sli_sp_intr_handler */
10739 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
10740 * @irq: Interrupt number.
10741 * @dev_id: The device context pointer.
10743 * This function is directly called from the PCI layer as an interrupt
10744 * service routine when device with SLI-3 interface spec is enabled with
10745 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
10746 * ring event in the HBA. However, when the device is enabled with either
10747 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
10748 * device-level interrupt handler. When the PCI slot is in error recovery
10749 * or the HBA is undergoing initialization, the interrupt handler will not
10750 * process the interrupt. The SCSI FCP fast-path ring event are handled in
10751 * the intrrupt context. This function is called without any lock held.
10752 * It gets the hbalock to access and update SLI data structures.
10754 * This function returns IRQ_HANDLED when interrupt is handled else it
10755 * returns IRQ_NONE.
10758 lpfc_sli_fp_intr_handler(int irq, void *dev_id)
10760 struct lpfc_hba *phba;
10762 unsigned long status;
10763 unsigned long iflag;
10765 /* Get the driver's phba structure from the dev_id and
10766 * assume the HBA is not interrupting.
10768 phba = (struct lpfc_hba *) dev_id;
10770 if (unlikely(!phba))
10774 * Stuff needs to be attented to when this function is invoked as an
10775 * individual interrupt handler in MSI-X multi-message interrupt mode
10777 if (phba->intr_type == MSIX) {
10778 /* Check device state for handling interrupt */
10779 if (lpfc_intr_state_check(phba))
10781 /* Need to read HA REG for FCP ring and other ring events */
10782 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10783 return IRQ_HANDLED;
10784 /* Clear up only attention source related to fast-path */
10785 spin_lock_irqsave(&phba->hbalock, iflag);
10787 * If there is deferred error attention, do not check for
10790 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10791 spin_unlock_irqrestore(&phba->hbalock, iflag);
10794 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
10796 readl(phba->HAregaddr); /* flush */
10797 spin_unlock_irqrestore(&phba->hbalock, iflag);
10799 ha_copy = phba->ha_copy;
10802 * Process all events on FCP ring. Take the optimized path for FCP IO.
10804 ha_copy &= ~(phba->work_ha_mask);
10806 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
10807 status >>= (4*LPFC_FCP_RING);
10808 if (status & HA_RXMASK)
10809 lpfc_sli_handle_fast_ring_event(phba,
10810 &phba->sli.ring[LPFC_FCP_RING],
10813 if (phba->cfg_multi_ring_support == 2) {
10815 * Process all events on extra ring. Take the optimized path
10816 * for extra ring IO.
10818 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
10819 status >>= (4*LPFC_EXTRA_RING);
10820 if (status & HA_RXMASK) {
10821 lpfc_sli_handle_fast_ring_event(phba,
10822 &phba->sli.ring[LPFC_EXTRA_RING],
10826 return IRQ_HANDLED;
10827 } /* lpfc_sli_fp_intr_handler */
10830 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
10831 * @irq: Interrupt number.
10832 * @dev_id: The device context pointer.
10834 * This function is the HBA device-level interrupt handler to device with
10835 * SLI-3 interface spec, called from the PCI layer when either MSI or
10836 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
10837 * requires driver attention. This function invokes the slow-path interrupt
10838 * attention handling function and fast-path interrupt attention handling
10839 * function in turn to process the relevant HBA attention events. This
10840 * function is called without any lock held. It gets the hbalock to access
10841 * and update SLI data structures.
10843 * This function returns IRQ_HANDLED when interrupt is handled, else it
10844 * returns IRQ_NONE.
10847 lpfc_sli_intr_handler(int irq, void *dev_id)
10849 struct lpfc_hba *phba;
10850 irqreturn_t sp_irq_rc, fp_irq_rc;
10851 unsigned long status1, status2;
10855 * Get the driver's phba structure from the dev_id and
10856 * assume the HBA is not interrupting.
10858 phba = (struct lpfc_hba *) dev_id;
10860 if (unlikely(!phba))
10863 /* Check device state for handling interrupt */
10864 if (lpfc_intr_state_check(phba))
10867 spin_lock(&phba->hbalock);
10868 if (lpfc_readl(phba->HAregaddr, &phba->ha_copy)) {
10869 spin_unlock(&phba->hbalock);
10870 return IRQ_HANDLED;
10873 if (unlikely(!phba->ha_copy)) {
10874 spin_unlock(&phba->hbalock);
10876 } else if (phba->ha_copy & HA_ERATT) {
10877 if (phba->hba_flag & HBA_ERATT_HANDLED)
10878 /* ERATT polling has handled ERATT */
10879 phba->ha_copy &= ~HA_ERATT;
10881 /* Indicate interrupt handler handles ERATT */
10882 phba->hba_flag |= HBA_ERATT_HANDLED;
10886 * If there is deferred error attention, do not check for any interrupt.
10888 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10889 spin_unlock(&phba->hbalock);
10893 /* Clear attention sources except link and error attentions */
10894 if (lpfc_readl(phba->HCregaddr, &hc_copy)) {
10895 spin_unlock(&phba->hbalock);
10896 return IRQ_HANDLED;
10898 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
10899 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
10901 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
10902 writel(hc_copy, phba->HCregaddr);
10903 readl(phba->HAregaddr); /* flush */
10904 spin_unlock(&phba->hbalock);
10907 * Invokes slow-path host attention interrupt handling as appropriate.
10910 /* status of events with mailbox and link attention */
10911 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
10913 /* status of events with ELS ring */
10914 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
10915 status2 >>= (4*LPFC_ELS_RING);
10917 if (status1 || (status2 & HA_RXMASK))
10918 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
10920 sp_irq_rc = IRQ_NONE;
10923 * Invoke fast-path host attention interrupt handling as appropriate.
10926 /* status of events with FCP ring */
10927 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
10928 status1 >>= (4*LPFC_FCP_RING);
10930 /* status of events with extra ring */
10931 if (phba->cfg_multi_ring_support == 2) {
10932 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
10933 status2 >>= (4*LPFC_EXTRA_RING);
10937 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
10938 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
10940 fp_irq_rc = IRQ_NONE;
10942 /* Return device-level interrupt handling status */
10943 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
10944 } /* lpfc_sli_intr_handler */
10947 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
10948 * @phba: pointer to lpfc hba data structure.
10950 * This routine is invoked by the worker thread to process all the pending
10951 * SLI4 FCP abort XRI events.
10953 void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba)
10955 struct lpfc_cq_event *cq_event;
10957 /* First, declare the fcp xri abort event has been handled */
10958 spin_lock_irq(&phba->hbalock);
10959 phba->hba_flag &= ~FCP_XRI_ABORT_EVENT;
10960 spin_unlock_irq(&phba->hbalock);
10961 /* Now, handle all the fcp xri abort events */
10962 while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) {
10963 /* Get the first event from the head of the event queue */
10964 spin_lock_irq(&phba->hbalock);
10965 list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
10966 cq_event, struct lpfc_cq_event, list);
10967 spin_unlock_irq(&phba->hbalock);
10968 /* Notify aborted XRI for FCP work queue */
10969 lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
10970 /* Free the event processed back to the free pool */
10971 lpfc_sli4_cq_event_release(phba, cq_event);
10976 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
10977 * @phba: pointer to lpfc hba data structure.
10979 * This routine is invoked by the worker thread to process all the pending
10980 * SLI4 els abort xri events.
10982 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
10984 struct lpfc_cq_event *cq_event;
10986 /* First, declare the els xri abort event has been handled */
10987 spin_lock_irq(&phba->hbalock);
10988 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
10989 spin_unlock_irq(&phba->hbalock);
10990 /* Now, handle all the els xri abort events */
10991 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
10992 /* Get the first event from the head of the event queue */
10993 spin_lock_irq(&phba->hbalock);
10994 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
10995 cq_event, struct lpfc_cq_event, list);
10996 spin_unlock_irq(&phba->hbalock);
10997 /* Notify aborted XRI for ELS work queue */
10998 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
10999 /* Free the event processed back to the free pool */
11000 lpfc_sli4_cq_event_release(phba, cq_event);
11005 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
11006 * @phba: pointer to lpfc hba data structure
11007 * @pIocbIn: pointer to the rspiocbq
11008 * @pIocbOut: pointer to the cmdiocbq
11009 * @wcqe: pointer to the complete wcqe
11011 * This routine transfers the fields of a command iocbq to a response iocbq
11012 * by copying all the IOCB fields from command iocbq and transferring the
11013 * completion status information from the complete wcqe.
11016 lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
11017 struct lpfc_iocbq *pIocbIn,
11018 struct lpfc_iocbq *pIocbOut,
11019 struct lpfc_wcqe_complete *wcqe)
11021 unsigned long iflags;
11023 size_t offset = offsetof(struct lpfc_iocbq, iocb);
11025 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
11026 sizeof(struct lpfc_iocbq) - offset);
11027 /* Map WCQE parameters into irspiocb parameters */
11028 status = bf_get(lpfc_wcqe_c_status, wcqe);
11029 pIocbIn->iocb.ulpStatus = (status & LPFC_IOCB_STATUS_MASK);
11030 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
11031 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
11032 pIocbIn->iocb.un.fcpi.fcpi_parm =
11033 pIocbOut->iocb.un.fcpi.fcpi_parm -
11034 wcqe->total_data_placed;
11036 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
11038 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
11039 pIocbIn->iocb.un.genreq64.bdl.bdeSize = wcqe->total_data_placed;
11042 /* Convert BG errors for completion status */
11043 if (status == CQE_STATUS_DI_ERROR) {
11044 pIocbIn->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
11046 if (bf_get(lpfc_wcqe_c_bg_edir, wcqe))
11047 pIocbIn->iocb.un.ulpWord[4] = IOERR_RX_DMA_FAILED;
11049 pIocbIn->iocb.un.ulpWord[4] = IOERR_TX_DMA_FAILED;
11051 pIocbIn->iocb.unsli3.sli3_bg.bgstat = 0;
11052 if (bf_get(lpfc_wcqe_c_bg_ge, wcqe)) /* Guard Check failed */
11053 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11054 BGS_GUARD_ERR_MASK;
11055 if (bf_get(lpfc_wcqe_c_bg_ae, wcqe)) /* App Tag Check failed */
11056 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11057 BGS_APPTAG_ERR_MASK;
11058 if (bf_get(lpfc_wcqe_c_bg_re, wcqe)) /* Ref Tag Check failed */
11059 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11060 BGS_REFTAG_ERR_MASK;
11062 /* Check to see if there was any good data before the error */
11063 if (bf_get(lpfc_wcqe_c_bg_tdpv, wcqe)) {
11064 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11065 BGS_HI_WATER_MARK_PRESENT_MASK;
11066 pIocbIn->iocb.unsli3.sli3_bg.bghm =
11067 wcqe->total_data_placed;
11071 * Set ALL the error bits to indicate we don't know what
11072 * type of error it is.
11074 if (!pIocbIn->iocb.unsli3.sli3_bg.bgstat)
11075 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11076 (BGS_REFTAG_ERR_MASK | BGS_APPTAG_ERR_MASK |
11077 BGS_GUARD_ERR_MASK);
11080 /* Pick up HBA exchange busy condition */
11081 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
11082 spin_lock_irqsave(&phba->hbalock, iflags);
11083 pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY;
11084 spin_unlock_irqrestore(&phba->hbalock, iflags);
11089 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
11090 * @phba: Pointer to HBA context object.
11091 * @wcqe: Pointer to work-queue completion queue entry.
11093 * This routine handles an ELS work-queue completion event and construct
11094 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
11095 * discovery engine to handle.
11097 * Return: Pointer to the receive IOCBQ, NULL otherwise.
11099 static struct lpfc_iocbq *
11100 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
11101 struct lpfc_iocbq *irspiocbq)
11103 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
11104 struct lpfc_iocbq *cmdiocbq;
11105 struct lpfc_wcqe_complete *wcqe;
11106 unsigned long iflags;
11108 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
11109 spin_lock_irqsave(&pring->ring_lock, iflags);
11110 pring->stats.iocb_event++;
11111 /* Look up the ELS command IOCB and create pseudo response IOCB */
11112 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
11113 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11114 spin_unlock_irqrestore(&pring->ring_lock, iflags);
11116 if (unlikely(!cmdiocbq)) {
11117 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11118 "0386 ELS complete with no corresponding "
11119 "cmdiocb: iotag (%d)\n",
11120 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11121 lpfc_sli_release_iocbq(phba, irspiocbq);
11125 /* Fake the irspiocbq and copy necessary response information */
11126 lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe);
11132 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
11133 * @phba: Pointer to HBA context object.
11134 * @cqe: Pointer to mailbox completion queue entry.
11136 * This routine process a mailbox completion queue entry with asynchrous
11139 * Return: true if work posted to worker thread, otherwise false.
11142 lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
11144 struct lpfc_cq_event *cq_event;
11145 unsigned long iflags;
11147 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11148 "0392 Async Event: word0:x%x, word1:x%x, "
11149 "word2:x%x, word3:x%x\n", mcqe->word0,
11150 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
11152 /* Allocate a new internal CQ_EVENT entry */
11153 cq_event = lpfc_sli4_cq_event_alloc(phba);
11155 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11156 "0394 Failed to allocate CQ_EVENT entry\n");
11160 /* Move the CQE into an asynchronous event entry */
11161 memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe));
11162 spin_lock_irqsave(&phba->hbalock, iflags);
11163 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
11164 /* Set the async event flag */
11165 phba->hba_flag |= ASYNC_EVENT;
11166 spin_unlock_irqrestore(&phba->hbalock, iflags);
11172 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
11173 * @phba: Pointer to HBA context object.
11174 * @cqe: Pointer to mailbox completion queue entry.
11176 * This routine process a mailbox completion queue entry with mailbox
11177 * completion event.
11179 * Return: true if work posted to worker thread, otherwise false.
11182 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
11184 uint32_t mcqe_status;
11185 MAILBOX_t *mbox, *pmbox;
11186 struct lpfc_mqe *mqe;
11187 struct lpfc_vport *vport;
11188 struct lpfc_nodelist *ndlp;
11189 struct lpfc_dmabuf *mp;
11190 unsigned long iflags;
11192 bool workposted = false;
11195 /* If not a mailbox complete MCQE, out by checking mailbox consume */
11196 if (!bf_get(lpfc_trailer_completed, mcqe))
11197 goto out_no_mqe_complete;
11199 /* Get the reference to the active mbox command */
11200 spin_lock_irqsave(&phba->hbalock, iflags);
11201 pmb = phba->sli.mbox_active;
11202 if (unlikely(!pmb)) {
11203 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
11204 "1832 No pending MBOX command to handle\n");
11205 spin_unlock_irqrestore(&phba->hbalock, iflags);
11206 goto out_no_mqe_complete;
11208 spin_unlock_irqrestore(&phba->hbalock, iflags);
11210 pmbox = (MAILBOX_t *)&pmb->u.mqe;
11212 vport = pmb->vport;
11214 /* Reset heartbeat timer */
11215 phba->last_completion_time = jiffies;
11216 del_timer(&phba->sli.mbox_tmo);
11218 /* Move mbox data to caller's mailbox region, do endian swapping */
11219 if (pmb->mbox_cmpl && mbox)
11220 lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
11223 * For mcqe errors, conditionally move a modified error code to
11224 * the mbox so that the error will not be missed.
11226 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
11227 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
11228 if (bf_get(lpfc_mqe_status, mqe) == MBX_SUCCESS)
11229 bf_set(lpfc_mqe_status, mqe,
11230 (LPFC_MBX_ERROR_RANGE | mcqe_status));
11232 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
11233 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
11234 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
11235 "MBOX dflt rpi: status:x%x rpi:x%x",
11237 pmbox->un.varWords[0], 0);
11238 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
11239 mp = (struct lpfc_dmabuf *)(pmb->context1);
11240 ndlp = (struct lpfc_nodelist *)pmb->context2;
11241 /* Reg_LOGIN of dflt RPI was successful. Now lets get
11242 * RID of the PPI using the same mbox buffer.
11244 lpfc_unreg_login(phba, vport->vpi,
11245 pmbox->un.varWords[0], pmb);
11246 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
11247 pmb->context1 = mp;
11248 pmb->context2 = ndlp;
11249 pmb->vport = vport;
11250 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
11251 if (rc != MBX_BUSY)
11252 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
11253 LOG_SLI, "0385 rc should "
11254 "have been MBX_BUSY\n");
11255 if (rc != MBX_NOT_FINISHED)
11256 goto send_current_mbox;
11259 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
11260 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
11261 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
11263 /* There is mailbox completion work to do */
11264 spin_lock_irqsave(&phba->hbalock, iflags);
11265 __lpfc_mbox_cmpl_put(phba, pmb);
11266 phba->work_ha |= HA_MBATT;
11267 spin_unlock_irqrestore(&phba->hbalock, iflags);
11271 spin_lock_irqsave(&phba->hbalock, iflags);
11272 /* Release the mailbox command posting token */
11273 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
11274 /* Setting active mailbox pointer need to be in sync to flag clear */
11275 phba->sli.mbox_active = NULL;
11276 spin_unlock_irqrestore(&phba->hbalock, iflags);
11277 /* Wake up worker thread to post the next pending mailbox command */
11278 lpfc_worker_wake_up(phba);
11279 out_no_mqe_complete:
11280 if (bf_get(lpfc_trailer_consumed, mcqe))
11281 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
11286 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
11287 * @phba: Pointer to HBA context object.
11288 * @cqe: Pointer to mailbox completion queue entry.
11290 * This routine process a mailbox completion queue entry, it invokes the
11291 * proper mailbox complete handling or asynchrous event handling routine
11292 * according to the MCQE's async bit.
11294 * Return: true if work posted to worker thread, otherwise false.
11297 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
11299 struct lpfc_mcqe mcqe;
11302 /* Copy the mailbox MCQE and convert endian order as needed */
11303 lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
11305 /* Invoke the proper event handling routine */
11306 if (!bf_get(lpfc_trailer_async, &mcqe))
11307 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
11309 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
11314 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
11315 * @phba: Pointer to HBA context object.
11316 * @cq: Pointer to associated CQ
11317 * @wcqe: Pointer to work-queue completion queue entry.
11319 * This routine handles an ELS work-queue completion event.
11321 * Return: true if work posted to worker thread, otherwise false.
11324 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11325 struct lpfc_wcqe_complete *wcqe)
11327 struct lpfc_iocbq *irspiocbq;
11328 unsigned long iflags;
11329 struct lpfc_sli_ring *pring = cq->pring;
11331 int txcmplq_cnt = 0;
11332 int fcp_txcmplq_cnt = 0;
11334 /* Get an irspiocbq for later ELS response processing use */
11335 irspiocbq = lpfc_sli_get_iocbq(phba);
11337 if (!list_empty(&pring->txq))
11339 if (!list_empty(&pring->txcmplq))
11341 if (!list_empty(&phba->sli.ring[LPFC_FCP_RING].txcmplq))
11343 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11344 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
11345 "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n",
11346 txq_cnt, phba->iocb_cnt,
11352 /* Save off the slow-path queue event for work thread to process */
11353 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
11354 spin_lock_irqsave(&phba->hbalock, iflags);
11355 list_add_tail(&irspiocbq->cq_event.list,
11356 &phba->sli4_hba.sp_queue_event);
11357 phba->hba_flag |= HBA_SP_QUEUE_EVT;
11358 spin_unlock_irqrestore(&phba->hbalock, iflags);
11364 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
11365 * @phba: Pointer to HBA context object.
11366 * @wcqe: Pointer to work-queue completion queue entry.
11368 * This routine handles slow-path WQ entry comsumed event by invoking the
11369 * proper WQ release routine to the slow-path WQ.
11372 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
11373 struct lpfc_wcqe_release *wcqe)
11375 /* sanity check on queue memory */
11376 if (unlikely(!phba->sli4_hba.els_wq))
11378 /* Check for the slow-path ELS work queue */
11379 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
11380 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
11381 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
11383 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11384 "2579 Slow-path wqe consume event carries "
11385 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
11386 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
11387 phba->sli4_hba.els_wq->queue_id);
11391 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
11392 * @phba: Pointer to HBA context object.
11393 * @cq: Pointer to a WQ completion queue.
11394 * @wcqe: Pointer to work-queue completion queue entry.
11396 * This routine handles an XRI abort event.
11398 * Return: true if work posted to worker thread, otherwise false.
11401 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
11402 struct lpfc_queue *cq,
11403 struct sli4_wcqe_xri_aborted *wcqe)
11405 bool workposted = false;
11406 struct lpfc_cq_event *cq_event;
11407 unsigned long iflags;
11409 /* Allocate a new internal CQ_EVENT entry */
11410 cq_event = lpfc_sli4_cq_event_alloc(phba);
11412 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11413 "0602 Failed to allocate CQ_EVENT entry\n");
11417 /* Move the CQE into the proper xri abort event list */
11418 memcpy(&cq_event->cqe, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
11419 switch (cq->subtype) {
11421 spin_lock_irqsave(&phba->hbalock, iflags);
11422 list_add_tail(&cq_event->list,
11423 &phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
11424 /* Set the fcp xri abort event flag */
11425 phba->hba_flag |= FCP_XRI_ABORT_EVENT;
11426 spin_unlock_irqrestore(&phba->hbalock, iflags);
11430 spin_lock_irqsave(&phba->hbalock, iflags);
11431 list_add_tail(&cq_event->list,
11432 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
11433 /* Set the els xri abort event flag */
11434 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
11435 spin_unlock_irqrestore(&phba->hbalock, iflags);
11439 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11440 "0603 Invalid work queue CQE subtype (x%x)\n",
11442 workposted = false;
11449 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
11450 * @phba: Pointer to HBA context object.
11451 * @rcqe: Pointer to receive-queue completion queue entry.
11453 * This routine process a receive-queue completion queue entry.
11455 * Return: true if work posted to worker thread, otherwise false.
11458 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
11460 bool workposted = false;
11461 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
11462 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
11463 struct hbq_dmabuf *dma_buf;
11464 uint32_t status, rq_id;
11465 unsigned long iflags;
11467 /* sanity check on queue memory */
11468 if (unlikely(!hrq) || unlikely(!drq))
11471 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
11472 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
11474 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
11475 if (rq_id != hrq->queue_id)
11478 status = bf_get(lpfc_rcqe_status, rcqe);
11480 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
11481 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11482 "2537 Receive Frame Truncated!!\n");
11483 hrq->RQ_buf_trunc++;
11484 case FC_STATUS_RQ_SUCCESS:
11485 lpfc_sli4_rq_release(hrq, drq);
11486 spin_lock_irqsave(&phba->hbalock, iflags);
11487 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
11489 hrq->RQ_no_buf_found++;
11490 spin_unlock_irqrestore(&phba->hbalock, iflags);
11494 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
11495 /* save off the frame for the word thread to process */
11496 list_add_tail(&dma_buf->cq_event.list,
11497 &phba->sli4_hba.sp_queue_event);
11498 /* Frame received */
11499 phba->hba_flag |= HBA_SP_QUEUE_EVT;
11500 spin_unlock_irqrestore(&phba->hbalock, iflags);
11503 case FC_STATUS_INSUFF_BUF_NEED_BUF:
11504 case FC_STATUS_INSUFF_BUF_FRM_DISC:
11505 hrq->RQ_no_posted_buf++;
11506 /* Post more buffers if possible */
11507 spin_lock_irqsave(&phba->hbalock, iflags);
11508 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
11509 spin_unlock_irqrestore(&phba->hbalock, iflags);
11518 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
11519 * @phba: Pointer to HBA context object.
11520 * @cq: Pointer to the completion queue.
11521 * @wcqe: Pointer to a completion queue entry.
11523 * This routine process a slow-path work-queue or receive queue completion queue
11526 * Return: true if work posted to worker thread, otherwise false.
11529 lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11530 struct lpfc_cqe *cqe)
11532 struct lpfc_cqe cqevt;
11533 bool workposted = false;
11535 /* Copy the work queue CQE and convert endian order if needed */
11536 lpfc_sli_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
11538 /* Check and process for different type of WCQE and dispatch */
11539 switch (bf_get(lpfc_cqe_code, &cqevt)) {
11540 case CQE_CODE_COMPL_WQE:
11541 /* Process the WQ/RQ complete event */
11542 phba->last_completion_time = jiffies;
11543 workposted = lpfc_sli4_sp_handle_els_wcqe(phba, cq,
11544 (struct lpfc_wcqe_complete *)&cqevt);
11546 case CQE_CODE_RELEASE_WQE:
11547 /* Process the WQ release event */
11548 lpfc_sli4_sp_handle_rel_wcqe(phba,
11549 (struct lpfc_wcqe_release *)&cqevt);
11551 case CQE_CODE_XRI_ABORTED:
11552 /* Process the WQ XRI abort event */
11553 phba->last_completion_time = jiffies;
11554 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
11555 (struct sli4_wcqe_xri_aborted *)&cqevt);
11557 case CQE_CODE_RECEIVE:
11558 case CQE_CODE_RECEIVE_V1:
11559 /* Process the RQ event */
11560 phba->last_completion_time = jiffies;
11561 workposted = lpfc_sli4_sp_handle_rcqe(phba,
11562 (struct lpfc_rcqe *)&cqevt);
11565 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11566 "0388 Not a valid WCQE code: x%x\n",
11567 bf_get(lpfc_cqe_code, &cqevt));
11574 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
11575 * @phba: Pointer to HBA context object.
11576 * @eqe: Pointer to fast-path event queue entry.
11578 * This routine process a event queue entry from the slow-path event queue.
11579 * It will check the MajorCode and MinorCode to determine this is for a
11580 * completion event on a completion queue, if not, an error shall be logged
11581 * and just return. Otherwise, it will get to the corresponding completion
11582 * queue and process all the entries on that completion queue, rearm the
11583 * completion queue, and then return.
11587 lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
11588 struct lpfc_queue *speq)
11590 struct lpfc_queue *cq = NULL, *childq;
11591 struct lpfc_cqe *cqe;
11592 bool workposted = false;
11596 /* Get the reference to the corresponding CQ */
11597 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
11599 list_for_each_entry(childq, &speq->child_list, list) {
11600 if (childq->queue_id == cqid) {
11605 if (unlikely(!cq)) {
11606 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
11607 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11608 "0365 Slow-path CQ identifier "
11609 "(%d) does not exist\n", cqid);
11613 /* Process all the entries to the CQ */
11614 switch (cq->type) {
11616 while ((cqe = lpfc_sli4_cq_get(cq))) {
11617 workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe);
11618 if (!(++ecount % cq->entry_repost))
11619 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
11624 while ((cqe = lpfc_sli4_cq_get(cq))) {
11625 if (cq->subtype == LPFC_FCP)
11626 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq,
11629 workposted |= lpfc_sli4_sp_handle_cqe(phba, cq,
11631 if (!(++ecount % cq->entry_repost))
11632 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
11635 /* Track the max number of CQEs processed in 1 EQ */
11636 if (ecount > cq->CQ_max_cqe)
11637 cq->CQ_max_cqe = ecount;
11640 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11641 "0370 Invalid completion queue type (%d)\n",
11646 /* Catch the no cq entry condition, log an error */
11647 if (unlikely(ecount == 0))
11648 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11649 "0371 No entry from the CQ: identifier "
11650 "(x%x), type (%d)\n", cq->queue_id, cq->type);
11652 /* In any case, flash and re-arm the RCQ */
11653 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
11655 /* wake up worker thread if there are works to be done */
11657 lpfc_worker_wake_up(phba);
11661 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
11662 * @phba: Pointer to HBA context object.
11663 * @cq: Pointer to associated CQ
11664 * @wcqe: Pointer to work-queue completion queue entry.
11666 * This routine process a fast-path work queue completion entry from fast-path
11667 * event queue for FCP command response completion.
11670 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11671 struct lpfc_wcqe_complete *wcqe)
11673 struct lpfc_sli_ring *pring = cq->pring;
11674 struct lpfc_iocbq *cmdiocbq;
11675 struct lpfc_iocbq irspiocbq;
11676 unsigned long iflags;
11678 /* Check for response status */
11679 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
11680 /* If resource errors reported from HBA, reduce queue
11681 * depth of the SCSI device.
11683 if (((bf_get(lpfc_wcqe_c_status, wcqe) ==
11684 IOSTAT_LOCAL_REJECT)) &&
11685 ((wcqe->parameter & IOERR_PARAM_MASK) ==
11686 IOERR_NO_RESOURCES))
11687 phba->lpfc_rampdown_queue_depth(phba);
11689 /* Log the error status */
11690 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11691 "0373 FCP complete error: status=x%x, "
11692 "hw_status=x%x, total_data_specified=%d, "
11693 "parameter=x%x, word3=x%x\n",
11694 bf_get(lpfc_wcqe_c_status, wcqe),
11695 bf_get(lpfc_wcqe_c_hw_status, wcqe),
11696 wcqe->total_data_placed, wcqe->parameter,
11700 /* Look up the FCP command IOCB and create pseudo response IOCB */
11701 spin_lock_irqsave(&pring->ring_lock, iflags);
11702 pring->stats.iocb_event++;
11703 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
11704 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11705 spin_unlock_irqrestore(&pring->ring_lock, iflags);
11706 if (unlikely(!cmdiocbq)) {
11707 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11708 "0374 FCP complete with no corresponding "
11709 "cmdiocb: iotag (%d)\n",
11710 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11713 if (unlikely(!cmdiocbq->iocb_cmpl)) {
11714 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11715 "0375 FCP cmdiocb not callback function "
11717 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11721 /* Fake the irspiocb and copy necessary response information */
11722 lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
11724 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
11725 spin_lock_irqsave(&phba->hbalock, iflags);
11726 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
11727 spin_unlock_irqrestore(&phba->hbalock, iflags);
11730 /* Pass the cmd_iocb and the rsp state to the upper layer */
11731 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
11735 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
11736 * @phba: Pointer to HBA context object.
11737 * @cq: Pointer to completion queue.
11738 * @wcqe: Pointer to work-queue completion queue entry.
11740 * This routine handles an fast-path WQ entry comsumed event by invoking the
11741 * proper WQ release routine to the slow-path WQ.
11744 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11745 struct lpfc_wcqe_release *wcqe)
11747 struct lpfc_queue *childwq;
11748 bool wqid_matched = false;
11751 /* Check for fast-path FCP work queue release */
11752 fcp_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
11753 list_for_each_entry(childwq, &cq->child_list, list) {
11754 if (childwq->queue_id == fcp_wqid) {
11755 lpfc_sli4_wq_release(childwq,
11756 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
11757 wqid_matched = true;
11761 /* Report warning log message if no match found */
11762 if (wqid_matched != true)
11763 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11764 "2580 Fast-path wqe consume event carries "
11765 "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid);
11769 * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry
11770 * @cq: Pointer to the completion queue.
11771 * @eqe: Pointer to fast-path completion queue entry.
11773 * This routine process a fast-path work queue completion entry from fast-path
11774 * event queue for FCP command response completion.
11777 lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11778 struct lpfc_cqe *cqe)
11780 struct lpfc_wcqe_release wcqe;
11781 bool workposted = false;
11783 /* Copy the work queue CQE and convert endian order if needed */
11784 lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
11786 /* Check and process for different type of WCQE and dispatch */
11787 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
11788 case CQE_CODE_COMPL_WQE:
11790 /* Process the WQ complete event */
11791 phba->last_completion_time = jiffies;
11792 lpfc_sli4_fp_handle_fcp_wcqe(phba, cq,
11793 (struct lpfc_wcqe_complete *)&wcqe);
11795 case CQE_CODE_RELEASE_WQE:
11796 cq->CQ_release_wqe++;
11797 /* Process the WQ release event */
11798 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
11799 (struct lpfc_wcqe_release *)&wcqe);
11801 case CQE_CODE_XRI_ABORTED:
11802 cq->CQ_xri_aborted++;
11803 /* Process the WQ XRI abort event */
11804 phba->last_completion_time = jiffies;
11805 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
11806 (struct sli4_wcqe_xri_aborted *)&wcqe);
11809 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11810 "0144 Not a valid WCQE code: x%x\n",
11811 bf_get(lpfc_wcqe_c_code, &wcqe));
11818 * lpfc_sli4_hba_handle_eqe - Process a fast-path event queue entry
11819 * @phba: Pointer to HBA context object.
11820 * @eqe: Pointer to fast-path event queue entry.
11822 * This routine process a event queue entry from the fast-path event queue.
11823 * It will check the MajorCode and MinorCode to determine this is for a
11824 * completion event on a completion queue, if not, an error shall be logged
11825 * and just return. Otherwise, it will get to the corresponding completion
11826 * queue and process all the entries on the completion queue, rearm the
11827 * completion queue, and then return.
11830 lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
11833 struct lpfc_queue *cq;
11834 struct lpfc_cqe *cqe;
11835 bool workposted = false;
11839 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
11840 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11841 "0366 Not a valid completion "
11842 "event: majorcode=x%x, minorcode=x%x\n",
11843 bf_get_le32(lpfc_eqe_major_code, eqe),
11844 bf_get_le32(lpfc_eqe_minor_code, eqe));
11848 /* Get the reference to the corresponding CQ */
11849 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
11851 /* Check if this is a Slow path event */
11852 if (unlikely(cqid != phba->sli4_hba.fcp_cq_map[qidx])) {
11853 lpfc_sli4_sp_handle_eqe(phba, eqe,
11854 phba->sli4_hba.hba_eq[qidx]);
11858 if (unlikely(!phba->sli4_hba.fcp_cq)) {
11859 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11860 "3146 Fast-path completion queues "
11861 "does not exist\n");
11864 cq = phba->sli4_hba.fcp_cq[qidx];
11865 if (unlikely(!cq)) {
11866 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
11867 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11868 "0367 Fast-path completion queue "
11869 "(%d) does not exist\n", qidx);
11873 if (unlikely(cqid != cq->queue_id)) {
11874 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11875 "0368 Miss-matched fast-path completion "
11876 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
11877 cqid, cq->queue_id);
11881 /* Process all the entries to the CQ */
11882 while ((cqe = lpfc_sli4_cq_get(cq))) {
11883 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe);
11884 if (!(++ecount % cq->entry_repost))
11885 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
11888 /* Track the max number of CQEs processed in 1 EQ */
11889 if (ecount > cq->CQ_max_cqe)
11890 cq->CQ_max_cqe = ecount;
11892 /* Catch the no cq entry condition */
11893 if (unlikely(ecount == 0))
11894 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11895 "0369 No entry from fast-path completion "
11896 "queue fcpcqid=%d\n", cq->queue_id);
11898 /* In any case, flash and re-arm the CQ */
11899 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
11901 /* wake up worker thread if there are works to be done */
11903 lpfc_worker_wake_up(phba);
11907 lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
11909 struct lpfc_eqe *eqe;
11911 /* walk all the EQ entries and drop on the floor */
11912 while ((eqe = lpfc_sli4_eq_get(eq)))
11915 /* Clear and re-arm the EQ */
11916 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
11920 * lpfc_sli4_hba_intr_handler - HBA interrupt handler to SLI-4 device
11921 * @irq: Interrupt number.
11922 * @dev_id: The device context pointer.
11924 * This function is directly called from the PCI layer as an interrupt
11925 * service routine when device with SLI-4 interface spec is enabled with
11926 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
11927 * ring event in the HBA. However, when the device is enabled with either
11928 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
11929 * device-level interrupt handler. When the PCI slot is in error recovery
11930 * or the HBA is undergoing initialization, the interrupt handler will not
11931 * process the interrupt. The SCSI FCP fast-path ring event are handled in
11932 * the intrrupt context. This function is called without any lock held.
11933 * It gets the hbalock to access and update SLI data structures. Note that,
11934 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
11935 * equal to that of FCP CQ index.
11937 * The link attention and ELS ring attention events are handled
11938 * by the worker thread. The interrupt handler signals the worker thread
11939 * and returns for these events. This function is called without any lock
11940 * held. It gets the hbalock to access and update SLI data structures.
11942 * This function returns IRQ_HANDLED when interrupt is handled else it
11943 * returns IRQ_NONE.
11946 lpfc_sli4_hba_intr_handler(int irq, void *dev_id)
11948 struct lpfc_hba *phba;
11949 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
11950 struct lpfc_queue *fpeq;
11951 struct lpfc_eqe *eqe;
11952 unsigned long iflag;
11956 /* Get the driver's phba structure from the dev_id */
11957 fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id;
11958 phba = fcp_eq_hdl->phba;
11959 fcp_eqidx = fcp_eq_hdl->idx;
11961 if (unlikely(!phba))
11963 if (unlikely(!phba->sli4_hba.hba_eq))
11966 /* Get to the EQ struct associated with this vector */
11967 fpeq = phba->sli4_hba.hba_eq[fcp_eqidx];
11968 if (unlikely(!fpeq))
11971 if (lpfc_fcp_look_ahead) {
11972 if (atomic_dec_and_test(&fcp_eq_hdl->fcp_eq_in_use))
11973 lpfc_sli4_eq_clr_intr(fpeq);
11975 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
11980 /* Check device state for handling interrupt */
11981 if (unlikely(lpfc_intr_state_check(phba))) {
11982 fpeq->EQ_badstate++;
11983 /* Check again for link_state with lock held */
11984 spin_lock_irqsave(&phba->hbalock, iflag);
11985 if (phba->link_state < LPFC_LINK_DOWN)
11986 /* Flush, clear interrupt, and rearm the EQ */
11987 lpfc_sli4_eq_flush(phba, fpeq);
11988 spin_unlock_irqrestore(&phba->hbalock, iflag);
11989 if (lpfc_fcp_look_ahead)
11990 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
11995 * Process all the event on FCP fast-path EQ
11997 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
11998 lpfc_sli4_hba_handle_eqe(phba, eqe, fcp_eqidx);
11999 if (!(++ecount % fpeq->entry_repost))
12000 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM);
12001 fpeq->EQ_processed++;
12004 /* Track the max number of EQEs processed in 1 intr */
12005 if (ecount > fpeq->EQ_max_eqe)
12006 fpeq->EQ_max_eqe = ecount;
12008 /* Always clear and re-arm the fast-path EQ */
12009 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
12011 if (unlikely(ecount == 0)) {
12012 fpeq->EQ_no_entry++;
12014 if (lpfc_fcp_look_ahead) {
12015 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12019 if (phba->intr_type == MSIX)
12020 /* MSI-X treated interrupt served as no EQ share INT */
12021 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12022 "0358 MSI-X interrupt with no EQE\n");
12024 /* Non MSI-X treated on interrupt as EQ share INT */
12028 if (lpfc_fcp_look_ahead)
12029 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12030 return IRQ_HANDLED;
12031 } /* lpfc_sli4_fp_intr_handler */
12034 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
12035 * @irq: Interrupt number.
12036 * @dev_id: The device context pointer.
12038 * This function is the device-level interrupt handler to device with SLI-4
12039 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
12040 * interrupt mode is enabled and there is an event in the HBA which requires
12041 * driver attention. This function invokes the slow-path interrupt attention
12042 * handling function and fast-path interrupt attention handling function in
12043 * turn to process the relevant HBA attention events. This function is called
12044 * without any lock held. It gets the hbalock to access and update SLI data
12047 * This function returns IRQ_HANDLED when interrupt is handled, else it
12048 * returns IRQ_NONE.
12051 lpfc_sli4_intr_handler(int irq, void *dev_id)
12053 struct lpfc_hba *phba;
12054 irqreturn_t hba_irq_rc;
12055 bool hba_handled = false;
12058 /* Get the driver's phba structure from the dev_id */
12059 phba = (struct lpfc_hba *)dev_id;
12061 if (unlikely(!phba))
12065 * Invoke fast-path host attention interrupt handling as appropriate.
12067 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
12068 hba_irq_rc = lpfc_sli4_hba_intr_handler(irq,
12069 &phba->sli4_hba.fcp_eq_hdl[fcp_eqidx]);
12070 if (hba_irq_rc == IRQ_HANDLED)
12071 hba_handled |= true;
12074 return (hba_handled == true) ? IRQ_HANDLED : IRQ_NONE;
12075 } /* lpfc_sli4_intr_handler */
12078 * lpfc_sli4_queue_free - free a queue structure and associated memory
12079 * @queue: The queue structure to free.
12081 * This function frees a queue structure and the DMAable memory used for
12082 * the host resident queue. This function must be called after destroying the
12083 * queue on the HBA.
12086 lpfc_sli4_queue_free(struct lpfc_queue *queue)
12088 struct lpfc_dmabuf *dmabuf;
12093 while (!list_empty(&queue->page_list)) {
12094 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
12096 dma_free_coherent(&queue->phba->pcidev->dev, SLI4_PAGE_SIZE,
12097 dmabuf->virt, dmabuf->phys);
12105 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
12106 * @phba: The HBA that this queue is being created on.
12107 * @entry_size: The size of each queue entry for this queue.
12108 * @entry count: The number of entries that this queue will handle.
12110 * This function allocates a queue structure and the DMAable memory used for
12111 * the host resident queue. This function must be called before creating the
12112 * queue on the HBA.
12114 struct lpfc_queue *
12115 lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size,
12116 uint32_t entry_count)
12118 struct lpfc_queue *queue;
12119 struct lpfc_dmabuf *dmabuf;
12120 int x, total_qe_count;
12122 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12124 if (!phba->sli4_hba.pc_sli4_params.supported)
12125 hw_page_size = SLI4_PAGE_SIZE;
12127 queue = kzalloc(sizeof(struct lpfc_queue) +
12128 (sizeof(union sli4_qe) * entry_count), GFP_KERNEL);
12131 queue->page_count = (ALIGN(entry_size * entry_count,
12132 hw_page_size))/hw_page_size;
12133 INIT_LIST_HEAD(&queue->list);
12134 INIT_LIST_HEAD(&queue->page_list);
12135 INIT_LIST_HEAD(&queue->child_list);
12136 for (x = 0, total_qe_count = 0; x < queue->page_count; x++) {
12137 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
12140 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
12141 hw_page_size, &dmabuf->phys,
12143 if (!dmabuf->virt) {
12147 memset(dmabuf->virt, 0, hw_page_size);
12148 dmabuf->buffer_tag = x;
12149 list_add_tail(&dmabuf->list, &queue->page_list);
12150 /* initialize queue's entry array */
12151 dma_pointer = dmabuf->virt;
12152 for (; total_qe_count < entry_count &&
12153 dma_pointer < (hw_page_size + dmabuf->virt);
12154 total_qe_count++, dma_pointer += entry_size) {
12155 queue->qe[total_qe_count].address = dma_pointer;
12158 queue->entry_size = entry_size;
12159 queue->entry_count = entry_count;
12162 * entry_repost is calculated based on the number of entries in the
12163 * queue. This works out except for RQs. If buffers are NOT initially
12164 * posted for every RQE, entry_repost should be adjusted accordingly.
12166 queue->entry_repost = (entry_count >> 3);
12167 if (queue->entry_repost < LPFC_QUEUE_MIN_REPOST)
12168 queue->entry_repost = LPFC_QUEUE_MIN_REPOST;
12169 queue->phba = phba;
12173 lpfc_sli4_queue_free(queue);
12178 * lpfc_dual_chute_pci_bar_map - Map pci base address register to host memory
12179 * @phba: HBA structure that indicates port to create a queue on.
12180 * @pci_barset: PCI BAR set flag.
12182 * This function shall perform iomap of the specified PCI BAR address to host
12183 * memory address if not already done so and return it. The returned host
12184 * memory address can be NULL.
12186 static void __iomem *
12187 lpfc_dual_chute_pci_bar_map(struct lpfc_hba *phba, uint16_t pci_barset)
12189 struct pci_dev *pdev;
12190 unsigned long bar_map, bar_map_len;
12195 pdev = phba->pcidev;
12197 switch (pci_barset) {
12198 case WQ_PCI_BAR_0_AND_1:
12199 if (!phba->pci_bar0_memmap_p) {
12200 bar_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
12201 bar_map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
12202 phba->pci_bar0_memmap_p = ioremap(bar_map, bar_map_len);
12204 return phba->pci_bar0_memmap_p;
12205 case WQ_PCI_BAR_2_AND_3:
12206 if (!phba->pci_bar2_memmap_p) {
12207 bar_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
12208 bar_map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
12209 phba->pci_bar2_memmap_p = ioremap(bar_map, bar_map_len);
12211 return phba->pci_bar2_memmap_p;
12212 case WQ_PCI_BAR_4_AND_5:
12213 if (!phba->pci_bar4_memmap_p) {
12214 bar_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
12215 bar_map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
12216 phba->pci_bar4_memmap_p = ioremap(bar_map, bar_map_len);
12218 return phba->pci_bar4_memmap_p;
12226 * lpfc_modify_fcp_eq_delay - Modify Delay Multiplier on FCP EQs
12227 * @phba: HBA structure that indicates port to create a queue on.
12228 * @startq: The starting FCP EQ to modify
12230 * This function sends an MODIFY_EQ_DELAY mailbox command to the HBA.
12232 * The @phba struct is used to send mailbox command to HBA. The @startq
12233 * is used to get the starting FCP EQ to change.
12234 * This function is asynchronous and will wait for the mailbox
12235 * command to finish before continuing.
12237 * On success this function will return a zero. If unable to allocate enough
12238 * memory this function will return -ENOMEM. If the queue create mailbox command
12239 * fails this function will return -ENXIO.
12242 lpfc_modify_fcp_eq_delay(struct lpfc_hba *phba, uint16_t startq)
12244 struct lpfc_mbx_modify_eq_delay *eq_delay;
12245 LPFC_MBOXQ_t *mbox;
12246 struct lpfc_queue *eq;
12247 int cnt, rc, length, status = 0;
12248 uint32_t shdr_status, shdr_add_status;
12251 union lpfc_sli4_cfg_shdr *shdr;
12254 if (startq >= phba->cfg_fcp_io_channel)
12257 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12260 length = (sizeof(struct lpfc_mbx_modify_eq_delay) -
12261 sizeof(struct lpfc_sli4_cfg_mhdr));
12262 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12263 LPFC_MBOX_OPCODE_MODIFY_EQ_DELAY,
12264 length, LPFC_SLI4_MBX_EMBED);
12265 eq_delay = &mbox->u.mqe.un.eq_delay;
12267 /* Calculate delay multiper from maximum interrupt per second */
12268 result = phba->cfg_fcp_imax / phba->cfg_fcp_io_channel;
12269 if (result > LPFC_DMULT_CONST)
12272 dmult = LPFC_DMULT_CONST/result - 1;
12275 for (fcp_eqidx = startq; fcp_eqidx < phba->cfg_fcp_io_channel;
12277 eq = phba->sli4_hba.hba_eq[fcp_eqidx];
12280 eq_delay->u.request.eq[cnt].eq_id = eq->queue_id;
12281 eq_delay->u.request.eq[cnt].phase = 0;
12282 eq_delay->u.request.eq[cnt].delay_multi = dmult;
12284 if (cnt >= LPFC_MAX_EQ_DELAY)
12287 eq_delay->u.request.num_eq = cnt;
12289 mbox->vport = phba->pport;
12290 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12291 mbox->context1 = NULL;
12292 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12293 shdr = (union lpfc_sli4_cfg_shdr *) &eq_delay->header.cfg_shdr;
12294 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12295 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12296 if (shdr_status || shdr_add_status || rc) {
12297 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12298 "2512 MODIFY_EQ_DELAY mailbox failed with "
12299 "status x%x add_status x%x, mbx status x%x\n",
12300 shdr_status, shdr_add_status, rc);
12303 mempool_free(mbox, phba->mbox_mem_pool);
12308 * lpfc_eq_create - Create an Event Queue on the HBA
12309 * @phba: HBA structure that indicates port to create a queue on.
12310 * @eq: The queue structure to use to create the event queue.
12311 * @imax: The maximum interrupt per second limit.
12313 * This function creates an event queue, as detailed in @eq, on a port,
12314 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
12316 * The @phba struct is used to send mailbox command to HBA. The @eq struct
12317 * is used to get the entry count and entry size that are necessary to
12318 * determine the number of pages to allocate and use for this queue. This
12319 * function will send the EQ_CREATE mailbox command to the HBA to setup the
12320 * event queue. This function is asynchronous and will wait for the mailbox
12321 * command to finish before continuing.
12323 * On success this function will return a zero. If unable to allocate enough
12324 * memory this function will return -ENOMEM. If the queue create mailbox command
12325 * fails this function will return -ENXIO.
12328 lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint32_t imax)
12330 struct lpfc_mbx_eq_create *eq_create;
12331 LPFC_MBOXQ_t *mbox;
12332 int rc, length, status = 0;
12333 struct lpfc_dmabuf *dmabuf;
12334 uint32_t shdr_status, shdr_add_status;
12335 union lpfc_sli4_cfg_shdr *shdr;
12337 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12339 /* sanity check on queue memory */
12342 if (!phba->sli4_hba.pc_sli4_params.supported)
12343 hw_page_size = SLI4_PAGE_SIZE;
12345 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12348 length = (sizeof(struct lpfc_mbx_eq_create) -
12349 sizeof(struct lpfc_sli4_cfg_mhdr));
12350 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12351 LPFC_MBOX_OPCODE_EQ_CREATE,
12352 length, LPFC_SLI4_MBX_EMBED);
12353 eq_create = &mbox->u.mqe.un.eq_create;
12354 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
12356 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
12358 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
12359 /* Calculate delay multiper from maximum interrupt per second */
12360 if (imax > LPFC_DMULT_CONST)
12363 dmult = LPFC_DMULT_CONST/imax - 1;
12364 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
12366 switch (eq->entry_count) {
12368 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12369 "0360 Unsupported EQ count. (%d)\n",
12371 if (eq->entry_count < 256)
12373 /* otherwise default to smallest count (drop through) */
12375 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12379 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12383 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12387 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12391 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12395 list_for_each_entry(dmabuf, &eq->page_list, list) {
12396 memset(dmabuf->virt, 0, hw_page_size);
12397 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
12398 putPaddrLow(dmabuf->phys);
12399 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
12400 putPaddrHigh(dmabuf->phys);
12402 mbox->vport = phba->pport;
12403 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12404 mbox->context1 = NULL;
12405 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12406 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
12407 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12408 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12409 if (shdr_status || shdr_add_status || rc) {
12410 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12411 "2500 EQ_CREATE mailbox failed with "
12412 "status x%x add_status x%x, mbx status x%x\n",
12413 shdr_status, shdr_add_status, rc);
12416 eq->type = LPFC_EQ;
12417 eq->subtype = LPFC_NONE;
12418 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
12419 if (eq->queue_id == 0xFFFF)
12421 eq->host_index = 0;
12424 mempool_free(mbox, phba->mbox_mem_pool);
12429 * lpfc_cq_create - Create a Completion Queue on the HBA
12430 * @phba: HBA structure that indicates port to create a queue on.
12431 * @cq: The queue structure to use to create the completion queue.
12432 * @eq: The event queue to bind this completion queue to.
12434 * This function creates a completion queue, as detailed in @wq, on a port,
12435 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
12437 * The @phba struct is used to send mailbox command to HBA. The @cq struct
12438 * is used to get the entry count and entry size that are necessary to
12439 * determine the number of pages to allocate and use for this queue. The @eq
12440 * is used to indicate which event queue to bind this completion queue to. This
12441 * function will send the CQ_CREATE mailbox command to the HBA to setup the
12442 * completion queue. This function is asynchronous and will wait for the mailbox
12443 * command to finish before continuing.
12445 * On success this function will return a zero. If unable to allocate enough
12446 * memory this function will return -ENOMEM. If the queue create mailbox command
12447 * fails this function will return -ENXIO.
12450 lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
12451 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
12453 struct lpfc_mbx_cq_create *cq_create;
12454 struct lpfc_dmabuf *dmabuf;
12455 LPFC_MBOXQ_t *mbox;
12456 int rc, length, status = 0;
12457 uint32_t shdr_status, shdr_add_status;
12458 union lpfc_sli4_cfg_shdr *shdr;
12459 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12461 /* sanity check on queue memory */
12464 if (!phba->sli4_hba.pc_sli4_params.supported)
12465 hw_page_size = SLI4_PAGE_SIZE;
12467 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12470 length = (sizeof(struct lpfc_mbx_cq_create) -
12471 sizeof(struct lpfc_sli4_cfg_mhdr));
12472 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12473 LPFC_MBOX_OPCODE_CQ_CREATE,
12474 length, LPFC_SLI4_MBX_EMBED);
12475 cq_create = &mbox->u.mqe.un.cq_create;
12476 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
12477 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
12479 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
12480 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
12481 bf_set(lpfc_mbox_hdr_version, &shdr->request,
12482 phba->sli4_hba.pc_sli4_params.cqv);
12483 if (phba->sli4_hba.pc_sli4_params.cqv == LPFC_Q_CREATE_VERSION_2) {
12484 /* FW only supports 1. Should be PAGE_SIZE/SLI4_PAGE_SIZE */
12485 bf_set(lpfc_mbx_cq_create_page_size, &cq_create->u.request, 1);
12486 bf_set(lpfc_cq_eq_id_2, &cq_create->u.request.context,
12489 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context,
12492 switch (cq->entry_count) {
12494 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12495 "0361 Unsupported CQ count. (%d)\n",
12497 if (cq->entry_count < 256) {
12501 /* otherwise default to smallest count (drop through) */
12503 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
12507 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
12511 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
12515 list_for_each_entry(dmabuf, &cq->page_list, list) {
12516 memset(dmabuf->virt, 0, hw_page_size);
12517 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
12518 putPaddrLow(dmabuf->phys);
12519 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
12520 putPaddrHigh(dmabuf->phys);
12522 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12524 /* The IOCTL status is embedded in the mailbox subheader. */
12525 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12526 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12527 if (shdr_status || shdr_add_status || rc) {
12528 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12529 "2501 CQ_CREATE mailbox failed with "
12530 "status x%x add_status x%x, mbx status x%x\n",
12531 shdr_status, shdr_add_status, rc);
12535 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
12536 if (cq->queue_id == 0xFFFF) {
12540 /* link the cq onto the parent eq child list */
12541 list_add_tail(&cq->list, &eq->child_list);
12542 /* Set up completion queue's type and subtype */
12544 cq->subtype = subtype;
12545 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
12546 cq->assoc_qid = eq->queue_id;
12547 cq->host_index = 0;
12551 mempool_free(mbox, phba->mbox_mem_pool);
12556 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
12557 * @phba: HBA structure that indicates port to create a queue on.
12558 * @mq: The queue structure to use to create the mailbox queue.
12559 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
12560 * @cq: The completion queue to associate with this cq.
12562 * This function provides failback (fb) functionality when the
12563 * mq_create_ext fails on older FW generations. It's purpose is identical
12564 * to mq_create_ext otherwise.
12566 * This routine cannot fail as all attributes were previously accessed and
12567 * initialized in mq_create_ext.
12570 lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq,
12571 LPFC_MBOXQ_t *mbox, struct lpfc_queue *cq)
12573 struct lpfc_mbx_mq_create *mq_create;
12574 struct lpfc_dmabuf *dmabuf;
12577 length = (sizeof(struct lpfc_mbx_mq_create) -
12578 sizeof(struct lpfc_sli4_cfg_mhdr));
12579 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12580 LPFC_MBOX_OPCODE_MQ_CREATE,
12581 length, LPFC_SLI4_MBX_EMBED);
12582 mq_create = &mbox->u.mqe.un.mq_create;
12583 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
12585 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
12587 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
12588 switch (mq->entry_count) {
12590 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
12591 LPFC_MQ_RING_SIZE_16);
12594 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
12595 LPFC_MQ_RING_SIZE_32);
12598 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
12599 LPFC_MQ_RING_SIZE_64);
12602 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
12603 LPFC_MQ_RING_SIZE_128);
12606 list_for_each_entry(dmabuf, &mq->page_list, list) {
12607 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
12608 putPaddrLow(dmabuf->phys);
12609 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
12610 putPaddrHigh(dmabuf->phys);
12615 * lpfc_mq_create - Create a mailbox Queue on the HBA
12616 * @phba: HBA structure that indicates port to create a queue on.
12617 * @mq: The queue structure to use to create the mailbox queue.
12618 * @cq: The completion queue to associate with this cq.
12619 * @subtype: The queue's subtype.
12621 * This function creates a mailbox queue, as detailed in @mq, on a port,
12622 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
12624 * The @phba struct is used to send mailbox command to HBA. The @cq struct
12625 * is used to get the entry count and entry size that are necessary to
12626 * determine the number of pages to allocate and use for this queue. This
12627 * function will send the MQ_CREATE mailbox command to the HBA to setup the
12628 * mailbox queue. This function is asynchronous and will wait for the mailbox
12629 * command to finish before continuing.
12631 * On success this function will return a zero. If unable to allocate enough
12632 * memory this function will return -ENOMEM. If the queue create mailbox command
12633 * fails this function will return -ENXIO.
12636 lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
12637 struct lpfc_queue *cq, uint32_t subtype)
12639 struct lpfc_mbx_mq_create *mq_create;
12640 struct lpfc_mbx_mq_create_ext *mq_create_ext;
12641 struct lpfc_dmabuf *dmabuf;
12642 LPFC_MBOXQ_t *mbox;
12643 int rc, length, status = 0;
12644 uint32_t shdr_status, shdr_add_status;
12645 union lpfc_sli4_cfg_shdr *shdr;
12646 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12648 /* sanity check on queue memory */
12651 if (!phba->sli4_hba.pc_sli4_params.supported)
12652 hw_page_size = SLI4_PAGE_SIZE;
12654 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12657 length = (sizeof(struct lpfc_mbx_mq_create_ext) -
12658 sizeof(struct lpfc_sli4_cfg_mhdr));
12659 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12660 LPFC_MBOX_OPCODE_MQ_CREATE_EXT,
12661 length, LPFC_SLI4_MBX_EMBED);
12663 mq_create_ext = &mbox->u.mqe.un.mq_create_ext;
12664 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr;
12665 bf_set(lpfc_mbx_mq_create_ext_num_pages,
12666 &mq_create_ext->u.request, mq->page_count);
12667 bf_set(lpfc_mbx_mq_create_ext_async_evt_link,
12668 &mq_create_ext->u.request, 1);
12669 bf_set(lpfc_mbx_mq_create_ext_async_evt_fip,
12670 &mq_create_ext->u.request, 1);
12671 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5,
12672 &mq_create_ext->u.request, 1);
12673 bf_set(lpfc_mbx_mq_create_ext_async_evt_fc,
12674 &mq_create_ext->u.request, 1);
12675 bf_set(lpfc_mbx_mq_create_ext_async_evt_sli,
12676 &mq_create_ext->u.request, 1);
12677 bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1);
12678 bf_set(lpfc_mbox_hdr_version, &shdr->request,
12679 phba->sli4_hba.pc_sli4_params.mqv);
12680 if (phba->sli4_hba.pc_sli4_params.mqv == LPFC_Q_CREATE_VERSION_1)
12681 bf_set(lpfc_mbx_mq_create_ext_cq_id, &mq_create_ext->u.request,
12684 bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context,
12686 switch (mq->entry_count) {
12688 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12689 "0362 Unsupported MQ count. (%d)\n",
12691 if (mq->entry_count < 16) {
12695 /* otherwise default to smallest count (drop through) */
12697 bf_set(lpfc_mq_context_ring_size,
12698 &mq_create_ext->u.request.context,
12699 LPFC_MQ_RING_SIZE_16);
12702 bf_set(lpfc_mq_context_ring_size,
12703 &mq_create_ext->u.request.context,
12704 LPFC_MQ_RING_SIZE_32);
12707 bf_set(lpfc_mq_context_ring_size,
12708 &mq_create_ext->u.request.context,
12709 LPFC_MQ_RING_SIZE_64);
12712 bf_set(lpfc_mq_context_ring_size,
12713 &mq_create_ext->u.request.context,
12714 LPFC_MQ_RING_SIZE_128);
12717 list_for_each_entry(dmabuf, &mq->page_list, list) {
12718 memset(dmabuf->virt, 0, hw_page_size);
12719 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_lo =
12720 putPaddrLow(dmabuf->phys);
12721 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_hi =
12722 putPaddrHigh(dmabuf->phys);
12724 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12725 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
12726 &mq_create_ext->u.response);
12727 if (rc != MBX_SUCCESS) {
12728 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12729 "2795 MQ_CREATE_EXT failed with "
12730 "status x%x. Failback to MQ_CREATE.\n",
12732 lpfc_mq_create_fb_init(phba, mq, mbox, cq);
12733 mq_create = &mbox->u.mqe.un.mq_create;
12734 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12735 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
12736 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
12737 &mq_create->u.response);
12740 /* The IOCTL status is embedded in the mailbox subheader. */
12741 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12742 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12743 if (shdr_status || shdr_add_status || rc) {
12744 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12745 "2502 MQ_CREATE mailbox failed with "
12746 "status x%x add_status x%x, mbx status x%x\n",
12747 shdr_status, shdr_add_status, rc);
12751 if (mq->queue_id == 0xFFFF) {
12755 mq->type = LPFC_MQ;
12756 mq->assoc_qid = cq->queue_id;
12757 mq->subtype = subtype;
12758 mq->host_index = 0;
12761 /* link the mq onto the parent cq child list */
12762 list_add_tail(&mq->list, &cq->child_list);
12764 mempool_free(mbox, phba->mbox_mem_pool);
12769 * lpfc_wq_create - Create a Work Queue on the HBA
12770 * @phba: HBA structure that indicates port to create a queue on.
12771 * @wq: The queue structure to use to create the work queue.
12772 * @cq: The completion queue to bind this work queue to.
12773 * @subtype: The subtype of the work queue indicating its functionality.
12775 * This function creates a work queue, as detailed in @wq, on a port, described
12776 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
12778 * The @phba struct is used to send mailbox command to HBA. The @wq struct
12779 * is used to get the entry count and entry size that are necessary to
12780 * determine the number of pages to allocate and use for this queue. The @cq
12781 * is used to indicate which completion queue to bind this work queue to. This
12782 * function will send the WQ_CREATE mailbox command to the HBA to setup the
12783 * work queue. This function is asynchronous and will wait for the mailbox
12784 * command to finish before continuing.
12786 * On success this function will return a zero. If unable to allocate enough
12787 * memory this function will return -ENOMEM. If the queue create mailbox command
12788 * fails this function will return -ENXIO.
12791 lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
12792 struct lpfc_queue *cq, uint32_t subtype)
12794 struct lpfc_mbx_wq_create *wq_create;
12795 struct lpfc_dmabuf *dmabuf;
12796 LPFC_MBOXQ_t *mbox;
12797 int rc, length, status = 0;
12798 uint32_t shdr_status, shdr_add_status;
12799 union lpfc_sli4_cfg_shdr *shdr;
12800 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12801 struct dma_address *page;
12802 void __iomem *bar_memmap_p;
12803 uint32_t db_offset;
12804 uint16_t pci_barset;
12806 /* sanity check on queue memory */
12809 if (!phba->sli4_hba.pc_sli4_params.supported)
12810 hw_page_size = SLI4_PAGE_SIZE;
12812 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12815 length = (sizeof(struct lpfc_mbx_wq_create) -
12816 sizeof(struct lpfc_sli4_cfg_mhdr));
12817 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
12818 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
12819 length, LPFC_SLI4_MBX_EMBED);
12820 wq_create = &mbox->u.mqe.un.wq_create;
12821 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
12822 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
12824 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
12826 bf_set(lpfc_mbox_hdr_version, &shdr->request,
12827 phba->sli4_hba.pc_sli4_params.wqv);
12829 if (phba->sli4_hba.pc_sli4_params.wqv == LPFC_Q_CREATE_VERSION_1) {
12830 bf_set(lpfc_mbx_wq_create_wqe_count, &wq_create->u.request_1,
12832 switch (wq->entry_size) {
12835 bf_set(lpfc_mbx_wq_create_wqe_size,
12836 &wq_create->u.request_1,
12837 LPFC_WQ_WQE_SIZE_64);
12840 bf_set(lpfc_mbx_wq_create_wqe_size,
12841 &wq_create->u.request_1,
12842 LPFC_WQ_WQE_SIZE_128);
12845 bf_set(lpfc_mbx_wq_create_page_size, &wq_create->u.request_1,
12846 (PAGE_SIZE/SLI4_PAGE_SIZE));
12847 page = wq_create->u.request_1.page;
12849 page = wq_create->u.request.page;
12851 list_for_each_entry(dmabuf, &wq->page_list, list) {
12852 memset(dmabuf->virt, 0, hw_page_size);
12853 page[dmabuf->buffer_tag].addr_lo = putPaddrLow(dmabuf->phys);
12854 page[dmabuf->buffer_tag].addr_hi = putPaddrHigh(dmabuf->phys);
12857 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
12858 bf_set(lpfc_mbx_wq_create_dua, &wq_create->u.request, 1);
12860 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12861 /* The IOCTL status is embedded in the mailbox subheader. */
12862 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12863 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12864 if (shdr_status || shdr_add_status || rc) {
12865 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12866 "2503 WQ_CREATE mailbox failed with "
12867 "status x%x add_status x%x, mbx status x%x\n",
12868 shdr_status, shdr_add_status, rc);
12872 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response);
12873 if (wq->queue_id == 0xFFFF) {
12877 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
12878 wq->db_format = bf_get(lpfc_mbx_wq_create_db_format,
12879 &wq_create->u.response);
12880 if ((wq->db_format != LPFC_DB_LIST_FORMAT) &&
12881 (wq->db_format != LPFC_DB_RING_FORMAT)) {
12882 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12883 "3265 WQ[%d] doorbell format not "
12884 "supported: x%x\n", wq->queue_id,
12889 pci_barset = bf_get(lpfc_mbx_wq_create_bar_set,
12890 &wq_create->u.response);
12891 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
12892 if (!bar_memmap_p) {
12893 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12894 "3263 WQ[%d] failed to memmap pci "
12895 "barset:x%x\n", wq->queue_id,
12900 db_offset = wq_create->u.response.doorbell_offset;
12901 if ((db_offset != LPFC_ULP0_WQ_DOORBELL) &&
12902 (db_offset != LPFC_ULP1_WQ_DOORBELL)) {
12903 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12904 "3252 WQ[%d] doorbell offset not "
12905 "supported: x%x\n", wq->queue_id,
12910 wq->db_regaddr = bar_memmap_p + db_offset;
12911 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12912 "3264 WQ[%d]: barset:x%x, offset:x%x, "
12913 "format:x%x\n", wq->queue_id, pci_barset,
12914 db_offset, wq->db_format);
12916 wq->db_format = LPFC_DB_LIST_FORMAT;
12917 wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
12919 wq->type = LPFC_WQ;
12920 wq->assoc_qid = cq->queue_id;
12921 wq->subtype = subtype;
12922 wq->host_index = 0;
12924 wq->entry_repost = LPFC_RELEASE_NOTIFICATION_INTERVAL;
12926 /* link the wq onto the parent cq child list */
12927 list_add_tail(&wq->list, &cq->child_list);
12929 mempool_free(mbox, phba->mbox_mem_pool);
12934 * lpfc_rq_adjust_repost - Adjust entry_repost for an RQ
12935 * @phba: HBA structure that indicates port to create a queue on.
12936 * @rq: The queue structure to use for the receive queue.
12937 * @qno: The associated HBQ number
12940 * For SLI4 we need to adjust the RQ repost value based on
12941 * the number of buffers that are initially posted to the RQ.
12944 lpfc_rq_adjust_repost(struct lpfc_hba *phba, struct lpfc_queue *rq, int qno)
12948 /* sanity check on queue memory */
12951 cnt = lpfc_hbq_defs[qno]->entry_count;
12953 /* Recalc repost for RQs based on buffers initially posted */
12955 if (cnt < LPFC_QUEUE_MIN_REPOST)
12956 cnt = LPFC_QUEUE_MIN_REPOST;
12958 rq->entry_repost = cnt;
12962 * lpfc_rq_create - Create a Receive Queue on the HBA
12963 * @phba: HBA structure that indicates port to create a queue on.
12964 * @hrq: The queue structure to use to create the header receive queue.
12965 * @drq: The queue structure to use to create the data receive queue.
12966 * @cq: The completion queue to bind this work queue to.
12968 * This function creates a receive buffer queue pair , as detailed in @hrq and
12969 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
12972 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
12973 * struct is used to get the entry count that is necessary to determine the
12974 * number of pages to use for this queue. The @cq is used to indicate which
12975 * completion queue to bind received buffers that are posted to these queues to.
12976 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
12977 * receive queue pair. This function is asynchronous and will wait for the
12978 * mailbox command to finish before continuing.
12980 * On success this function will return a zero. If unable to allocate enough
12981 * memory this function will return -ENOMEM. If the queue create mailbox command
12982 * fails this function will return -ENXIO.
12985 lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
12986 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
12988 struct lpfc_mbx_rq_create *rq_create;
12989 struct lpfc_dmabuf *dmabuf;
12990 LPFC_MBOXQ_t *mbox;
12991 int rc, length, status = 0;
12992 uint32_t shdr_status, shdr_add_status;
12993 union lpfc_sli4_cfg_shdr *shdr;
12994 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12995 void __iomem *bar_memmap_p;
12996 uint32_t db_offset;
12997 uint16_t pci_barset;
12999 /* sanity check on queue memory */
13000 if (!hrq || !drq || !cq)
13002 if (!phba->sli4_hba.pc_sli4_params.supported)
13003 hw_page_size = SLI4_PAGE_SIZE;
13005 if (hrq->entry_count != drq->entry_count)
13007 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13010 length = (sizeof(struct lpfc_mbx_rq_create) -
13011 sizeof(struct lpfc_sli4_cfg_mhdr));
13012 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13013 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
13014 length, LPFC_SLI4_MBX_EMBED);
13015 rq_create = &mbox->u.mqe.un.rq_create;
13016 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
13017 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13018 phba->sli4_hba.pc_sli4_params.rqv);
13019 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
13020 bf_set(lpfc_rq_context_rqe_count_1,
13021 &rq_create->u.request.context,
13023 rq_create->u.request.context.buffer_size = LPFC_HDR_BUF_SIZE;
13024 bf_set(lpfc_rq_context_rqe_size,
13025 &rq_create->u.request.context,
13027 bf_set(lpfc_rq_context_page_size,
13028 &rq_create->u.request.context,
13029 (PAGE_SIZE/SLI4_PAGE_SIZE));
13031 switch (hrq->entry_count) {
13033 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13034 "2535 Unsupported RQ count. (%d)\n",
13036 if (hrq->entry_count < 512) {
13040 /* otherwise default to smallest count (drop through) */
13042 bf_set(lpfc_rq_context_rqe_count,
13043 &rq_create->u.request.context,
13044 LPFC_RQ_RING_SIZE_512);
13047 bf_set(lpfc_rq_context_rqe_count,
13048 &rq_create->u.request.context,
13049 LPFC_RQ_RING_SIZE_1024);
13052 bf_set(lpfc_rq_context_rqe_count,
13053 &rq_create->u.request.context,
13054 LPFC_RQ_RING_SIZE_2048);
13057 bf_set(lpfc_rq_context_rqe_count,
13058 &rq_create->u.request.context,
13059 LPFC_RQ_RING_SIZE_4096);
13062 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
13063 LPFC_HDR_BUF_SIZE);
13065 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
13067 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
13069 list_for_each_entry(dmabuf, &hrq->page_list, list) {
13070 memset(dmabuf->virt, 0, hw_page_size);
13071 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13072 putPaddrLow(dmabuf->phys);
13073 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13074 putPaddrHigh(dmabuf->phys);
13076 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
13077 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
13079 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13080 /* The IOCTL status is embedded in the mailbox subheader. */
13081 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13082 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13083 if (shdr_status || shdr_add_status || rc) {
13084 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13085 "2504 RQ_CREATE mailbox failed with "
13086 "status x%x add_status x%x, mbx status x%x\n",
13087 shdr_status, shdr_add_status, rc);
13091 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
13092 if (hrq->queue_id == 0xFFFF) {
13097 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
13098 hrq->db_format = bf_get(lpfc_mbx_rq_create_db_format,
13099 &rq_create->u.response);
13100 if ((hrq->db_format != LPFC_DB_LIST_FORMAT) &&
13101 (hrq->db_format != LPFC_DB_RING_FORMAT)) {
13102 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13103 "3262 RQ [%d] doorbell format not "
13104 "supported: x%x\n", hrq->queue_id,
13110 pci_barset = bf_get(lpfc_mbx_rq_create_bar_set,
13111 &rq_create->u.response);
13112 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
13113 if (!bar_memmap_p) {
13114 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13115 "3269 RQ[%d] failed to memmap pci "
13116 "barset:x%x\n", hrq->queue_id,
13122 db_offset = rq_create->u.response.doorbell_offset;
13123 if ((db_offset != LPFC_ULP0_RQ_DOORBELL) &&
13124 (db_offset != LPFC_ULP1_RQ_DOORBELL)) {
13125 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13126 "3270 RQ[%d] doorbell offset not "
13127 "supported: x%x\n", hrq->queue_id,
13132 hrq->db_regaddr = bar_memmap_p + db_offset;
13133 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13134 "3266 RQ[qid:%d]: barset:x%x, offset:x%x, "
13135 "format:x%x\n", hrq->queue_id, pci_barset,
13136 db_offset, hrq->db_format);
13138 hrq->db_format = LPFC_DB_RING_FORMAT;
13139 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
13141 hrq->type = LPFC_HRQ;
13142 hrq->assoc_qid = cq->queue_id;
13143 hrq->subtype = subtype;
13144 hrq->host_index = 0;
13145 hrq->hba_index = 0;
13147 /* now create the data queue */
13148 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13149 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
13150 length, LPFC_SLI4_MBX_EMBED);
13151 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13152 phba->sli4_hba.pc_sli4_params.rqv);
13153 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
13154 bf_set(lpfc_rq_context_rqe_count_1,
13155 &rq_create->u.request.context, hrq->entry_count);
13156 rq_create->u.request.context.buffer_size = LPFC_DATA_BUF_SIZE;
13157 bf_set(lpfc_rq_context_rqe_size, &rq_create->u.request.context,
13159 bf_set(lpfc_rq_context_page_size, &rq_create->u.request.context,
13160 (PAGE_SIZE/SLI4_PAGE_SIZE));
13162 switch (drq->entry_count) {
13164 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13165 "2536 Unsupported RQ count. (%d)\n",
13167 if (drq->entry_count < 512) {
13171 /* otherwise default to smallest count (drop through) */
13173 bf_set(lpfc_rq_context_rqe_count,
13174 &rq_create->u.request.context,
13175 LPFC_RQ_RING_SIZE_512);
13178 bf_set(lpfc_rq_context_rqe_count,
13179 &rq_create->u.request.context,
13180 LPFC_RQ_RING_SIZE_1024);
13183 bf_set(lpfc_rq_context_rqe_count,
13184 &rq_create->u.request.context,
13185 LPFC_RQ_RING_SIZE_2048);
13188 bf_set(lpfc_rq_context_rqe_count,
13189 &rq_create->u.request.context,
13190 LPFC_RQ_RING_SIZE_4096);
13193 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
13194 LPFC_DATA_BUF_SIZE);
13196 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
13198 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
13200 list_for_each_entry(dmabuf, &drq->page_list, list) {
13201 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13202 putPaddrLow(dmabuf->phys);
13203 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13204 putPaddrHigh(dmabuf->phys);
13206 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
13207 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
13208 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13209 /* The IOCTL status is embedded in the mailbox subheader. */
13210 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
13211 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13212 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13213 if (shdr_status || shdr_add_status || rc) {
13217 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
13218 if (drq->queue_id == 0xFFFF) {
13222 drq->type = LPFC_DRQ;
13223 drq->assoc_qid = cq->queue_id;
13224 drq->subtype = subtype;
13225 drq->host_index = 0;
13226 drq->hba_index = 0;
13228 /* link the header and data RQs onto the parent cq child list */
13229 list_add_tail(&hrq->list, &cq->child_list);
13230 list_add_tail(&drq->list, &cq->child_list);
13233 mempool_free(mbox, phba->mbox_mem_pool);
13238 * lpfc_eq_destroy - Destroy an event Queue on the HBA
13239 * @eq: The queue structure associated with the queue to destroy.
13241 * This function destroys a queue, as detailed in @eq by sending an mailbox
13242 * command, specific to the type of queue, to the HBA.
13244 * The @eq struct is used to get the queue ID of the queue to destroy.
13246 * On success this function will return a zero. If the queue destroy mailbox
13247 * command fails this function will return -ENXIO.
13250 lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
13252 LPFC_MBOXQ_t *mbox;
13253 int rc, length, status = 0;
13254 uint32_t shdr_status, shdr_add_status;
13255 union lpfc_sli4_cfg_shdr *shdr;
13257 /* sanity check on queue memory */
13260 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
13263 length = (sizeof(struct lpfc_mbx_eq_destroy) -
13264 sizeof(struct lpfc_sli4_cfg_mhdr));
13265 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13266 LPFC_MBOX_OPCODE_EQ_DESTROY,
13267 length, LPFC_SLI4_MBX_EMBED);
13268 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
13270 mbox->vport = eq->phba->pport;
13271 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13273 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
13274 /* The IOCTL status is embedded in the mailbox subheader. */
13275 shdr = (union lpfc_sli4_cfg_shdr *)
13276 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
13277 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13278 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13279 if (shdr_status || shdr_add_status || rc) {
13280 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13281 "2505 EQ_DESTROY mailbox failed with "
13282 "status x%x add_status x%x, mbx status x%x\n",
13283 shdr_status, shdr_add_status, rc);
13287 /* Remove eq from any list */
13288 list_del_init(&eq->list);
13289 mempool_free(mbox, eq->phba->mbox_mem_pool);
13294 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
13295 * @cq: The queue structure associated with the queue to destroy.
13297 * This function destroys a queue, as detailed in @cq by sending an mailbox
13298 * command, specific to the type of queue, to the HBA.
13300 * The @cq struct is used to get the queue ID of the queue to destroy.
13302 * On success this function will return a zero. If the queue destroy mailbox
13303 * command fails this function will return -ENXIO.
13306 lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
13308 LPFC_MBOXQ_t *mbox;
13309 int rc, length, status = 0;
13310 uint32_t shdr_status, shdr_add_status;
13311 union lpfc_sli4_cfg_shdr *shdr;
13313 /* sanity check on queue memory */
13316 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
13319 length = (sizeof(struct lpfc_mbx_cq_destroy) -
13320 sizeof(struct lpfc_sli4_cfg_mhdr));
13321 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13322 LPFC_MBOX_OPCODE_CQ_DESTROY,
13323 length, LPFC_SLI4_MBX_EMBED);
13324 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
13326 mbox->vport = cq->phba->pport;
13327 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13328 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
13329 /* The IOCTL status is embedded in the mailbox subheader. */
13330 shdr = (union lpfc_sli4_cfg_shdr *)
13331 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
13332 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13333 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13334 if (shdr_status || shdr_add_status || rc) {
13335 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13336 "2506 CQ_DESTROY mailbox failed with "
13337 "status x%x add_status x%x, mbx status x%x\n",
13338 shdr_status, shdr_add_status, rc);
13341 /* Remove cq from any list */
13342 list_del_init(&cq->list);
13343 mempool_free(mbox, cq->phba->mbox_mem_pool);
13348 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
13349 * @qm: The queue structure associated with the queue to destroy.
13351 * This function destroys a queue, as detailed in @mq by sending an mailbox
13352 * command, specific to the type of queue, to the HBA.
13354 * The @mq struct is used to get the queue ID of the queue to destroy.
13356 * On success this function will return a zero. If the queue destroy mailbox
13357 * command fails this function will return -ENXIO.
13360 lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
13362 LPFC_MBOXQ_t *mbox;
13363 int rc, length, status = 0;
13364 uint32_t shdr_status, shdr_add_status;
13365 union lpfc_sli4_cfg_shdr *shdr;
13367 /* sanity check on queue memory */
13370 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
13373 length = (sizeof(struct lpfc_mbx_mq_destroy) -
13374 sizeof(struct lpfc_sli4_cfg_mhdr));
13375 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13376 LPFC_MBOX_OPCODE_MQ_DESTROY,
13377 length, LPFC_SLI4_MBX_EMBED);
13378 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
13380 mbox->vport = mq->phba->pport;
13381 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13382 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
13383 /* The IOCTL status is embedded in the mailbox subheader. */
13384 shdr = (union lpfc_sli4_cfg_shdr *)
13385 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
13386 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13387 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13388 if (shdr_status || shdr_add_status || rc) {
13389 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13390 "2507 MQ_DESTROY mailbox failed with "
13391 "status x%x add_status x%x, mbx status x%x\n",
13392 shdr_status, shdr_add_status, rc);
13395 /* Remove mq from any list */
13396 list_del_init(&mq->list);
13397 mempool_free(mbox, mq->phba->mbox_mem_pool);
13402 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
13403 * @wq: The queue structure associated with the queue to destroy.
13405 * This function destroys a queue, as detailed in @wq by sending an mailbox
13406 * command, specific to the type of queue, to the HBA.
13408 * The @wq struct is used to get the queue ID of the queue to destroy.
13410 * On success this function will return a zero. If the queue destroy mailbox
13411 * command fails this function will return -ENXIO.
13414 lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
13416 LPFC_MBOXQ_t *mbox;
13417 int rc, length, status = 0;
13418 uint32_t shdr_status, shdr_add_status;
13419 union lpfc_sli4_cfg_shdr *shdr;
13421 /* sanity check on queue memory */
13424 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
13427 length = (sizeof(struct lpfc_mbx_wq_destroy) -
13428 sizeof(struct lpfc_sli4_cfg_mhdr));
13429 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13430 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
13431 length, LPFC_SLI4_MBX_EMBED);
13432 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
13434 mbox->vport = wq->phba->pport;
13435 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13436 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
13437 shdr = (union lpfc_sli4_cfg_shdr *)
13438 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
13439 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13440 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13441 if (shdr_status || shdr_add_status || rc) {
13442 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13443 "2508 WQ_DESTROY mailbox failed with "
13444 "status x%x add_status x%x, mbx status x%x\n",
13445 shdr_status, shdr_add_status, rc);
13448 /* Remove wq from any list */
13449 list_del_init(&wq->list);
13450 mempool_free(mbox, wq->phba->mbox_mem_pool);
13455 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
13456 * @rq: The queue structure associated with the queue to destroy.
13458 * This function destroys a queue, as detailed in @rq by sending an mailbox
13459 * command, specific to the type of queue, to the HBA.
13461 * The @rq struct is used to get the queue ID of the queue to destroy.
13463 * On success this function will return a zero. If the queue destroy mailbox
13464 * command fails this function will return -ENXIO.
13467 lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
13468 struct lpfc_queue *drq)
13470 LPFC_MBOXQ_t *mbox;
13471 int rc, length, status = 0;
13472 uint32_t shdr_status, shdr_add_status;
13473 union lpfc_sli4_cfg_shdr *shdr;
13475 /* sanity check on queue memory */
13478 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
13481 length = (sizeof(struct lpfc_mbx_rq_destroy) -
13482 sizeof(struct lpfc_sli4_cfg_mhdr));
13483 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13484 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
13485 length, LPFC_SLI4_MBX_EMBED);
13486 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
13488 mbox->vport = hrq->phba->pport;
13489 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13490 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
13491 /* The IOCTL status is embedded in the mailbox subheader. */
13492 shdr = (union lpfc_sli4_cfg_shdr *)
13493 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
13494 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13495 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13496 if (shdr_status || shdr_add_status || rc) {
13497 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13498 "2509 RQ_DESTROY mailbox failed with "
13499 "status x%x add_status x%x, mbx status x%x\n",
13500 shdr_status, shdr_add_status, rc);
13501 if (rc != MBX_TIMEOUT)
13502 mempool_free(mbox, hrq->phba->mbox_mem_pool);
13505 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
13507 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
13508 shdr = (union lpfc_sli4_cfg_shdr *)
13509 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
13510 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13511 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13512 if (shdr_status || shdr_add_status || rc) {
13513 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13514 "2510 RQ_DESTROY mailbox failed with "
13515 "status x%x add_status x%x, mbx status x%x\n",
13516 shdr_status, shdr_add_status, rc);
13519 list_del_init(&hrq->list);
13520 list_del_init(&drq->list);
13521 mempool_free(mbox, hrq->phba->mbox_mem_pool);
13526 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
13527 * @phba: The virtual port for which this call being executed.
13528 * @pdma_phys_addr0: Physical address of the 1st SGL page.
13529 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
13530 * @xritag: the xritag that ties this io to the SGL pages.
13532 * This routine will post the sgl pages for the IO that has the xritag
13533 * that is in the iocbq structure. The xritag is assigned during iocbq
13534 * creation and persists for as long as the driver is loaded.
13535 * if the caller has fewer than 256 scatter gather segments to map then
13536 * pdma_phys_addr1 should be 0.
13537 * If the caller needs to map more than 256 scatter gather segment then
13538 * pdma_phys_addr1 should be a valid physical address.
13539 * physical address for SGLs must be 64 byte aligned.
13540 * If you are going to map 2 SGL's then the first one must have 256 entries
13541 * the second sgl can have between 1 and 256 entries.
13545 * -ENXIO, -ENOMEM - Failure
13548 lpfc_sli4_post_sgl(struct lpfc_hba *phba,
13549 dma_addr_t pdma_phys_addr0,
13550 dma_addr_t pdma_phys_addr1,
13553 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
13554 LPFC_MBOXQ_t *mbox;
13556 uint32_t shdr_status, shdr_add_status;
13558 union lpfc_sli4_cfg_shdr *shdr;
13560 if (xritag == NO_XRI) {
13561 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13562 "0364 Invalid param:\n");
13566 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13570 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13571 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
13572 sizeof(struct lpfc_mbx_post_sgl_pages) -
13573 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
13575 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
13576 &mbox->u.mqe.un.post_sgl_pages;
13577 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
13578 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
13580 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
13581 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
13582 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
13583 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
13585 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
13586 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
13587 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
13588 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
13589 if (!phba->sli4_hba.intr_enable)
13590 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13592 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
13593 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
13595 /* The IOCTL status is embedded in the mailbox subheader. */
13596 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
13597 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13598 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13599 if (rc != MBX_TIMEOUT)
13600 mempool_free(mbox, phba->mbox_mem_pool);
13601 if (shdr_status || shdr_add_status || rc) {
13602 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13603 "2511 POST_SGL mailbox failed with "
13604 "status x%x add_status x%x, mbx status x%x\n",
13605 shdr_status, shdr_add_status, rc);
13612 * lpfc_sli4_alloc_xri - Get an available rpi in the device's range
13613 * @phba: pointer to lpfc hba data structure.
13615 * This routine is invoked to post rpi header templates to the
13616 * HBA consistent with the SLI-4 interface spec. This routine
13617 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
13618 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
13621 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
13622 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
13625 lpfc_sli4_alloc_xri(struct lpfc_hba *phba)
13630 * Fetch the next logical xri. Because this index is logical,
13631 * the driver starts at 0 each time.
13633 spin_lock_irq(&phba->hbalock);
13634 xri = find_next_zero_bit(phba->sli4_hba.xri_bmask,
13635 phba->sli4_hba.max_cfg_param.max_xri, 0);
13636 if (xri >= phba->sli4_hba.max_cfg_param.max_xri) {
13637 spin_unlock_irq(&phba->hbalock);
13640 set_bit(xri, phba->sli4_hba.xri_bmask);
13641 phba->sli4_hba.max_cfg_param.xri_used++;
13643 spin_unlock_irq(&phba->hbalock);
13648 * lpfc_sli4_free_xri - Release an xri for reuse.
13649 * @phba: pointer to lpfc hba data structure.
13651 * This routine is invoked to release an xri to the pool of
13652 * available rpis maintained by the driver.
13655 __lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
13657 if (test_and_clear_bit(xri, phba->sli4_hba.xri_bmask)) {
13658 phba->sli4_hba.max_cfg_param.xri_used--;
13663 * lpfc_sli4_free_xri - Release an xri for reuse.
13664 * @phba: pointer to lpfc hba data structure.
13666 * This routine is invoked to release an xri to the pool of
13667 * available rpis maintained by the driver.
13670 lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
13672 spin_lock_irq(&phba->hbalock);
13673 __lpfc_sli4_free_xri(phba, xri);
13674 spin_unlock_irq(&phba->hbalock);
13678 * lpfc_sli4_next_xritag - Get an xritag for the io
13679 * @phba: Pointer to HBA context object.
13681 * This function gets an xritag for the iocb. If there is no unused xritag
13682 * it will return 0xffff.
13683 * The function returns the allocated xritag if successful, else returns zero.
13684 * Zero is not a valid xritag.
13685 * The caller is not required to hold any lock.
13688 lpfc_sli4_next_xritag(struct lpfc_hba *phba)
13690 uint16_t xri_index;
13692 xri_index = lpfc_sli4_alloc_xri(phba);
13693 if (xri_index == NO_XRI)
13694 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13695 "2004 Failed to allocate XRI.last XRITAG is %d"
13696 " Max XRI is %d, Used XRI is %d\n",
13698 phba->sli4_hba.max_cfg_param.max_xri,
13699 phba->sli4_hba.max_cfg_param.xri_used);
13704 * lpfc_sli4_post_els_sgl_list - post a block of ELS sgls to the port.
13705 * @phba: pointer to lpfc hba data structure.
13706 * @post_sgl_list: pointer to els sgl entry list.
13707 * @count: number of els sgl entries on the list.
13709 * This routine is invoked to post a block of driver's sgl pages to the
13710 * HBA using non-embedded mailbox command. No Lock is held. This routine
13711 * is only called when the driver is loading and after all IO has been
13715 lpfc_sli4_post_els_sgl_list(struct lpfc_hba *phba,
13716 struct list_head *post_sgl_list,
13719 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
13720 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
13721 struct sgl_page_pairs *sgl_pg_pairs;
13723 LPFC_MBOXQ_t *mbox;
13724 uint32_t reqlen, alloclen, pg_pairs;
13726 uint16_t xritag_start = 0;
13728 uint32_t shdr_status, shdr_add_status;
13729 union lpfc_sli4_cfg_shdr *shdr;
13731 reqlen = phba->sli4_hba.els_xri_cnt * sizeof(struct sgl_page_pairs) +
13732 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
13733 if (reqlen > SLI4_PAGE_SIZE) {
13734 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13735 "2559 Block sgl registration required DMA "
13736 "size (%d) great than a page\n", reqlen);
13739 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13743 /* Allocate DMA memory and set up the non-embedded mailbox command */
13744 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13745 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
13746 LPFC_SLI4_MBX_NEMBED);
13748 if (alloclen < reqlen) {
13749 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13750 "0285 Allocated DMA memory size (%d) is "
13751 "less than the requested DMA memory "
13752 "size (%d)\n", alloclen, reqlen);
13753 lpfc_sli4_mbox_cmd_free(phba, mbox);
13756 /* Set up the SGL pages in the non-embedded DMA pages */
13757 viraddr = mbox->sge_array->addr[0];
13758 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
13759 sgl_pg_pairs = &sgl->sgl_pg_pairs;
13762 list_for_each_entry_safe(sglq_entry, sglq_next, post_sgl_list, list) {
13763 /* Set up the sge entry */
13764 sgl_pg_pairs->sgl_pg0_addr_lo =
13765 cpu_to_le32(putPaddrLow(sglq_entry->phys));
13766 sgl_pg_pairs->sgl_pg0_addr_hi =
13767 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
13768 sgl_pg_pairs->sgl_pg1_addr_lo =
13769 cpu_to_le32(putPaddrLow(0));
13770 sgl_pg_pairs->sgl_pg1_addr_hi =
13771 cpu_to_le32(putPaddrHigh(0));
13773 /* Keep the first xritag on the list */
13775 xritag_start = sglq_entry->sli4_xritag;
13780 /* Complete initialization and perform endian conversion. */
13781 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
13782 bf_set(lpfc_post_sgl_pages_xricnt, sgl, phba->sli4_hba.els_xri_cnt);
13783 sgl->word0 = cpu_to_le32(sgl->word0);
13784 if (!phba->sli4_hba.intr_enable)
13785 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13787 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
13788 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
13790 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
13791 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13792 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13793 if (rc != MBX_TIMEOUT)
13794 lpfc_sli4_mbox_cmd_free(phba, mbox);
13795 if (shdr_status || shdr_add_status || rc) {
13796 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13797 "2513 POST_SGL_BLOCK mailbox command failed "
13798 "status x%x add_status x%x mbx status x%x\n",
13799 shdr_status, shdr_add_status, rc);
13806 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
13807 * @phba: pointer to lpfc hba data structure.
13808 * @sblist: pointer to scsi buffer list.
13809 * @count: number of scsi buffers on the list.
13811 * This routine is invoked to post a block of @count scsi sgl pages from a
13812 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
13817 lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba,
13818 struct list_head *sblist,
13821 struct lpfc_scsi_buf *psb;
13822 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
13823 struct sgl_page_pairs *sgl_pg_pairs;
13825 LPFC_MBOXQ_t *mbox;
13826 uint32_t reqlen, alloclen, pg_pairs;
13828 uint16_t xritag_start = 0;
13830 uint32_t shdr_status, shdr_add_status;
13831 dma_addr_t pdma_phys_bpl1;
13832 union lpfc_sli4_cfg_shdr *shdr;
13834 /* Calculate the requested length of the dma memory */
13835 reqlen = count * sizeof(struct sgl_page_pairs) +
13836 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
13837 if (reqlen > SLI4_PAGE_SIZE) {
13838 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13839 "0217 Block sgl registration required DMA "
13840 "size (%d) great than a page\n", reqlen);
13843 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13845 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13846 "0283 Failed to allocate mbox cmd memory\n");
13850 /* Allocate DMA memory and set up the non-embedded mailbox command */
13851 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13852 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
13853 LPFC_SLI4_MBX_NEMBED);
13855 if (alloclen < reqlen) {
13856 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13857 "2561 Allocated DMA memory size (%d) is "
13858 "less than the requested DMA memory "
13859 "size (%d)\n", alloclen, reqlen);
13860 lpfc_sli4_mbox_cmd_free(phba, mbox);
13864 /* Get the first SGE entry from the non-embedded DMA memory */
13865 viraddr = mbox->sge_array->addr[0];
13867 /* Set up the SGL pages in the non-embedded DMA pages */
13868 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
13869 sgl_pg_pairs = &sgl->sgl_pg_pairs;
13872 list_for_each_entry(psb, sblist, list) {
13873 /* Set up the sge entry */
13874 sgl_pg_pairs->sgl_pg0_addr_lo =
13875 cpu_to_le32(putPaddrLow(psb->dma_phys_bpl));
13876 sgl_pg_pairs->sgl_pg0_addr_hi =
13877 cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl));
13878 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
13879 pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE;
13881 pdma_phys_bpl1 = 0;
13882 sgl_pg_pairs->sgl_pg1_addr_lo =
13883 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
13884 sgl_pg_pairs->sgl_pg1_addr_hi =
13885 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
13886 /* Keep the first xritag on the list */
13888 xritag_start = psb->cur_iocbq.sli4_xritag;
13892 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
13893 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
13894 /* Perform endian conversion if necessary */
13895 sgl->word0 = cpu_to_le32(sgl->word0);
13897 if (!phba->sli4_hba.intr_enable)
13898 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13900 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
13901 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
13903 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
13904 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13905 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13906 if (rc != MBX_TIMEOUT)
13907 lpfc_sli4_mbox_cmd_free(phba, mbox);
13908 if (shdr_status || shdr_add_status || rc) {
13909 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13910 "2564 POST_SGL_BLOCK mailbox command failed "
13911 "status x%x add_status x%x mbx status x%x\n",
13912 shdr_status, shdr_add_status, rc);
13919 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
13920 * @phba: pointer to lpfc_hba struct that the frame was received on
13921 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
13923 * This function checks the fields in the @fc_hdr to see if the FC frame is a
13924 * valid type of frame that the LPFC driver will handle. This function will
13925 * return a zero if the frame is a valid frame or a non zero value when the
13926 * frame does not pass the check.
13929 lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
13931 /* make rctl_names static to save stack space */
13932 static char *rctl_names[] = FC_RCTL_NAMES_INIT;
13933 char *type_names[] = FC_TYPE_NAMES_INIT;
13934 struct fc_vft_header *fc_vft_hdr;
13935 uint32_t *header = (uint32_t *) fc_hdr;
13937 switch (fc_hdr->fh_r_ctl) {
13938 case FC_RCTL_DD_UNCAT: /* uncategorized information */
13939 case FC_RCTL_DD_SOL_DATA: /* solicited data */
13940 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
13941 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
13942 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
13943 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
13944 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
13945 case FC_RCTL_DD_CMD_STATUS: /* command status */
13946 case FC_RCTL_ELS_REQ: /* extended link services request */
13947 case FC_RCTL_ELS_REP: /* extended link services reply */
13948 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
13949 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
13950 case FC_RCTL_BA_NOP: /* basic link service NOP */
13951 case FC_RCTL_BA_ABTS: /* basic link service abort */
13952 case FC_RCTL_BA_RMC: /* remove connection */
13953 case FC_RCTL_BA_ACC: /* basic accept */
13954 case FC_RCTL_BA_RJT: /* basic reject */
13955 case FC_RCTL_BA_PRMT:
13956 case FC_RCTL_ACK_1: /* acknowledge_1 */
13957 case FC_RCTL_ACK_0: /* acknowledge_0 */
13958 case FC_RCTL_P_RJT: /* port reject */
13959 case FC_RCTL_F_RJT: /* fabric reject */
13960 case FC_RCTL_P_BSY: /* port busy */
13961 case FC_RCTL_F_BSY: /* fabric busy to data frame */
13962 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
13963 case FC_RCTL_LCR: /* link credit reset */
13964 case FC_RCTL_END: /* end */
13966 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
13967 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
13968 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
13969 return lpfc_fc_frame_check(phba, fc_hdr);
13973 switch (fc_hdr->fh_type) {
13985 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
13986 "2538 Received frame rctl:%s type:%s "
13987 "Frame Data:%08x %08x %08x %08x %08x %08x\n",
13988 rctl_names[fc_hdr->fh_r_ctl],
13989 type_names[fc_hdr->fh_type],
13990 be32_to_cpu(header[0]), be32_to_cpu(header[1]),
13991 be32_to_cpu(header[2]), be32_to_cpu(header[3]),
13992 be32_to_cpu(header[4]), be32_to_cpu(header[5]));
13995 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
13996 "2539 Dropped frame rctl:%s type:%s\n",
13997 rctl_names[fc_hdr->fh_r_ctl],
13998 type_names[fc_hdr->fh_type]);
14003 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
14004 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14006 * This function processes the FC header to retrieve the VFI from the VF
14007 * header, if one exists. This function will return the VFI if one exists
14008 * or 0 if no VSAN Header exists.
14011 lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
14013 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
14015 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
14017 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
14021 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
14022 * @phba: Pointer to the HBA structure to search for the vport on
14023 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14024 * @fcfi: The FC Fabric ID that the frame came from
14026 * This function searches the @phba for a vport that matches the content of the
14027 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
14028 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
14029 * returns the matching vport pointer or NULL if unable to match frame to a
14032 static struct lpfc_vport *
14033 lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
14036 struct lpfc_vport **vports;
14037 struct lpfc_vport *vport = NULL;
14039 uint32_t did = (fc_hdr->fh_d_id[0] << 16 |
14040 fc_hdr->fh_d_id[1] << 8 |
14041 fc_hdr->fh_d_id[2]);
14043 if (did == Fabric_DID)
14044 return phba->pport;
14045 if ((phba->pport->fc_flag & FC_PT2PT) &&
14046 !(phba->link_state == LPFC_HBA_READY))
14047 return phba->pport;
14049 vports = lpfc_create_vport_work_array(phba);
14050 if (vports != NULL)
14051 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
14052 if (phba->fcf.fcfi == fcfi &&
14053 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
14054 vports[i]->fc_myDID == did) {
14059 lpfc_destroy_vport_work_array(phba, vports);
14064 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
14065 * @vport: The vport to work on.
14067 * This function updates the receive sequence time stamp for this vport. The
14068 * receive sequence time stamp indicates the time that the last frame of the
14069 * the sequence that has been idle for the longest amount of time was received.
14070 * the driver uses this time stamp to indicate if any received sequences have
14074 lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
14076 struct lpfc_dmabuf *h_buf;
14077 struct hbq_dmabuf *dmabuf = NULL;
14079 /* get the oldest sequence on the rcv list */
14080 h_buf = list_get_first(&vport->rcv_buffer_list,
14081 struct lpfc_dmabuf, list);
14084 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14085 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
14089 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
14090 * @vport: The vport that the received sequences were sent to.
14092 * This function cleans up all outstanding received sequences. This is called
14093 * by the driver when a link event or user action invalidates all the received
14097 lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
14099 struct lpfc_dmabuf *h_buf, *hnext;
14100 struct lpfc_dmabuf *d_buf, *dnext;
14101 struct hbq_dmabuf *dmabuf = NULL;
14103 /* start with the oldest sequence on the rcv list */
14104 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
14105 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14106 list_del_init(&dmabuf->hbuf.list);
14107 list_for_each_entry_safe(d_buf, dnext,
14108 &dmabuf->dbuf.list, list) {
14109 list_del_init(&d_buf->list);
14110 lpfc_in_buf_free(vport->phba, d_buf);
14112 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
14117 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
14118 * @vport: The vport that the received sequences were sent to.
14120 * This function determines whether any received sequences have timed out by
14121 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
14122 * indicates that there is at least one timed out sequence this routine will
14123 * go through the received sequences one at a time from most inactive to most
14124 * active to determine which ones need to be cleaned up. Once it has determined
14125 * that a sequence needs to be cleaned up it will simply free up the resources
14126 * without sending an abort.
14129 lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
14131 struct lpfc_dmabuf *h_buf, *hnext;
14132 struct lpfc_dmabuf *d_buf, *dnext;
14133 struct hbq_dmabuf *dmabuf = NULL;
14134 unsigned long timeout;
14135 int abort_count = 0;
14137 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
14138 vport->rcv_buffer_time_stamp);
14139 if (list_empty(&vport->rcv_buffer_list) ||
14140 time_before(jiffies, timeout))
14142 /* start with the oldest sequence on the rcv list */
14143 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
14144 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14145 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
14146 dmabuf->time_stamp);
14147 if (time_before(jiffies, timeout))
14150 list_del_init(&dmabuf->hbuf.list);
14151 list_for_each_entry_safe(d_buf, dnext,
14152 &dmabuf->dbuf.list, list) {
14153 list_del_init(&d_buf->list);
14154 lpfc_in_buf_free(vport->phba, d_buf);
14156 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
14159 lpfc_update_rcv_time_stamp(vport);
14163 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
14164 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
14166 * This function searches through the existing incomplete sequences that have
14167 * been sent to this @vport. If the frame matches one of the incomplete
14168 * sequences then the dbuf in the @dmabuf is added to the list of frames that
14169 * make up that sequence. If no sequence is found that matches this frame then
14170 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
14171 * This function returns a pointer to the first dmabuf in the sequence list that
14172 * the frame was linked to.
14174 static struct hbq_dmabuf *
14175 lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
14177 struct fc_frame_header *new_hdr;
14178 struct fc_frame_header *temp_hdr;
14179 struct lpfc_dmabuf *d_buf;
14180 struct lpfc_dmabuf *h_buf;
14181 struct hbq_dmabuf *seq_dmabuf = NULL;
14182 struct hbq_dmabuf *temp_dmabuf = NULL;
14184 INIT_LIST_HEAD(&dmabuf->dbuf.list);
14185 dmabuf->time_stamp = jiffies;
14186 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14187 /* Use the hdr_buf to find the sequence that this frame belongs to */
14188 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
14189 temp_hdr = (struct fc_frame_header *)h_buf->virt;
14190 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
14191 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
14192 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
14194 /* found a pending sequence that matches this frame */
14195 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14200 * This indicates first frame received for this sequence.
14201 * Queue the buffer on the vport's rcv_buffer_list.
14203 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
14204 lpfc_update_rcv_time_stamp(vport);
14207 temp_hdr = seq_dmabuf->hbuf.virt;
14208 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
14209 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
14210 list_del_init(&seq_dmabuf->hbuf.list);
14211 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
14212 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
14213 lpfc_update_rcv_time_stamp(vport);
14216 /* move this sequence to the tail to indicate a young sequence */
14217 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
14218 seq_dmabuf->time_stamp = jiffies;
14219 lpfc_update_rcv_time_stamp(vport);
14220 if (list_empty(&seq_dmabuf->dbuf.list)) {
14221 temp_hdr = dmabuf->hbuf.virt;
14222 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
14225 /* find the correct place in the sequence to insert this frame */
14226 list_for_each_entry_reverse(d_buf, &seq_dmabuf->dbuf.list, list) {
14227 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14228 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
14230 * If the frame's sequence count is greater than the frame on
14231 * the list then insert the frame right after this frame
14233 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
14234 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
14235 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
14243 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
14244 * @vport: pointer to a vitural port
14245 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14247 * This function tries to abort from the partially assembed sequence, described
14248 * by the information from basic abbort @dmabuf. It checks to see whether such
14249 * partially assembled sequence held by the driver. If so, it shall free up all
14250 * the frames from the partially assembled sequence.
14253 * true -- if there is matching partially assembled sequence present and all
14254 * the frames freed with the sequence;
14255 * false -- if there is no matching partially assembled sequence present so
14256 * nothing got aborted in the lower layer driver
14259 lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
14260 struct hbq_dmabuf *dmabuf)
14262 struct fc_frame_header *new_hdr;
14263 struct fc_frame_header *temp_hdr;
14264 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
14265 struct hbq_dmabuf *seq_dmabuf = NULL;
14267 /* Use the hdr_buf to find the sequence that matches this frame */
14268 INIT_LIST_HEAD(&dmabuf->dbuf.list);
14269 INIT_LIST_HEAD(&dmabuf->hbuf.list);
14270 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14271 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
14272 temp_hdr = (struct fc_frame_header *)h_buf->virt;
14273 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
14274 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
14275 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
14277 /* found a pending sequence that matches this frame */
14278 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14282 /* Free up all the frames from the partially assembled sequence */
14284 list_for_each_entry_safe(d_buf, n_buf,
14285 &seq_dmabuf->dbuf.list, list) {
14286 list_del_init(&d_buf->list);
14287 lpfc_in_buf_free(vport->phba, d_buf);
14295 * lpfc_sli4_abort_ulp_seq - Abort assembled unsol sequence from ulp
14296 * @vport: pointer to a vitural port
14297 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14299 * This function tries to abort from the assembed sequence from upper level
14300 * protocol, described by the information from basic abbort @dmabuf. It
14301 * checks to see whether such pending context exists at upper level protocol.
14302 * If so, it shall clean up the pending context.
14305 * true -- if there is matching pending context of the sequence cleaned
14307 * false -- if there is no matching pending context of the sequence present
14311 lpfc_sli4_abort_ulp_seq(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
14313 struct lpfc_hba *phba = vport->phba;
14316 /* Accepting abort at ulp with SLI4 only */
14317 if (phba->sli_rev < LPFC_SLI_REV4)
14320 /* Register all caring upper level protocols to attend abort */
14321 handled = lpfc_ct_handle_unsol_abort(phba, dmabuf);
14329 * lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler
14330 * @phba: Pointer to HBA context object.
14331 * @cmd_iocbq: pointer to the command iocbq structure.
14332 * @rsp_iocbq: pointer to the response iocbq structure.
14334 * This function handles the sequence abort response iocb command complete
14335 * event. It properly releases the memory allocated to the sequence abort
14339 lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba *phba,
14340 struct lpfc_iocbq *cmd_iocbq,
14341 struct lpfc_iocbq *rsp_iocbq)
14343 struct lpfc_nodelist *ndlp;
14346 ndlp = (struct lpfc_nodelist *)cmd_iocbq->context1;
14347 lpfc_nlp_put(ndlp);
14348 lpfc_nlp_not_used(ndlp);
14349 lpfc_sli_release_iocbq(phba, cmd_iocbq);
14352 /* Failure means BLS ABORT RSP did not get delivered to remote node*/
14353 if (rsp_iocbq && rsp_iocbq->iocb.ulpStatus)
14354 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14355 "3154 BLS ABORT RSP failed, data: x%x/x%x\n",
14356 rsp_iocbq->iocb.ulpStatus,
14357 rsp_iocbq->iocb.un.ulpWord[4]);
14361 * lpfc_sli4_xri_inrange - check xri is in range of xris owned by driver.
14362 * @phba: Pointer to HBA context object.
14363 * @xri: xri id in transaction.
14365 * This function validates the xri maps to the known range of XRIs allocated an
14366 * used by the driver.
14369 lpfc_sli4_xri_inrange(struct lpfc_hba *phba,
14374 for (i = 0; i < phba->sli4_hba.max_cfg_param.max_xri; i++) {
14375 if (xri == phba->sli4_hba.xri_ids[i])
14382 * lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort
14383 * @phba: Pointer to HBA context object.
14384 * @fc_hdr: pointer to a FC frame header.
14386 * This function sends a basic response to a previous unsol sequence abort
14387 * event after aborting the sequence handling.
14390 lpfc_sli4_seq_abort_rsp(struct lpfc_vport *vport,
14391 struct fc_frame_header *fc_hdr, bool aborted)
14393 struct lpfc_hba *phba = vport->phba;
14394 struct lpfc_iocbq *ctiocb = NULL;
14395 struct lpfc_nodelist *ndlp;
14396 uint16_t oxid, rxid, xri, lxri;
14397 uint32_t sid, fctl;
14401 if (!lpfc_is_link_up(phba))
14404 sid = sli4_sid_from_fc_hdr(fc_hdr);
14405 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
14406 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
14408 ndlp = lpfc_findnode_did(vport, sid);
14410 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
14412 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
14413 "1268 Failed to allocate ndlp for "
14414 "oxid:x%x SID:x%x\n", oxid, sid);
14417 lpfc_nlp_init(vport, ndlp, sid);
14418 /* Put ndlp onto pport node list */
14419 lpfc_enqueue_node(vport, ndlp);
14420 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
14421 /* re-setup ndlp without removing from node list */
14422 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
14424 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
14425 "3275 Failed to active ndlp found "
14426 "for oxid:x%x SID:x%x\n", oxid, sid);
14431 /* Allocate buffer for rsp iocb */
14432 ctiocb = lpfc_sli_get_iocbq(phba);
14436 /* Extract the F_CTL field from FC_HDR */
14437 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
14439 icmd = &ctiocb->iocb;
14440 icmd->un.xseq64.bdl.bdeSize = 0;
14441 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
14442 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
14443 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
14444 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
14446 /* Fill in the rest of iocb fields */
14447 icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
14448 icmd->ulpBdeCount = 0;
14450 icmd->ulpClass = CLASS3;
14451 icmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
14452 ctiocb->context1 = lpfc_nlp_get(ndlp);
14454 ctiocb->iocb_cmpl = NULL;
14455 ctiocb->vport = phba->pport;
14456 ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_rsp_cmpl;
14457 ctiocb->sli4_lxritag = NO_XRI;
14458 ctiocb->sli4_xritag = NO_XRI;
14460 if (fctl & FC_FC_EX_CTX)
14461 /* Exchange responder sent the abort so we
14467 lxri = lpfc_sli4_xri_inrange(phba, xri);
14468 if (lxri != NO_XRI)
14469 lpfc_set_rrq_active(phba, ndlp, lxri,
14470 (xri == oxid) ? rxid : oxid, 0);
14471 /* For BA_ABTS from exchange responder, if the logical xri with
14472 * the oxid maps to the FCP XRI range, the port no longer has
14473 * that exchange context, send a BLS_RJT. Override the IOCB for
14476 if ((fctl & FC_FC_EX_CTX) &&
14477 (lxri > lpfc_sli4_get_els_iocb_cnt(phba))) {
14478 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
14479 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
14480 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
14481 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
14484 /* If BA_ABTS failed to abort a partially assembled receive sequence,
14485 * the driver no longer has that exchange, send a BLS_RJT. Override
14486 * the IOCB for a BA_RJT.
14488 if (aborted == false) {
14489 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
14490 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
14491 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
14492 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
14495 if (fctl & FC_FC_EX_CTX) {
14496 /* ABTS sent by responder to CT exchange, construction
14497 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
14498 * field and RX_ID from ABTS for RX_ID field.
14500 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_RSP);
14502 /* ABTS sent by initiator to CT exchange, construction
14503 * of BA_ACC will need to allocate a new XRI as for the
14506 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_INT);
14508 bf_set(lpfc_abts_rxid, &icmd->un.bls_rsp, rxid);
14509 bf_set(lpfc_abts_oxid, &icmd->un.bls_rsp, oxid);
14511 /* Xmit CT abts response on exchange <xid> */
14512 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
14513 "1200 Send BLS cmd x%x on oxid x%x Data: x%x\n",
14514 icmd->un.xseq64.w5.hcsw.Rctl, oxid, phba->link_state);
14516 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
14517 if (rc == IOCB_ERROR) {
14518 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
14519 "2925 Failed to issue CT ABTS RSP x%x on "
14520 "xri x%x, Data x%x\n",
14521 icmd->un.xseq64.w5.hcsw.Rctl, oxid,
14523 lpfc_nlp_put(ndlp);
14524 ctiocb->context1 = NULL;
14525 lpfc_sli_release_iocbq(phba, ctiocb);
14530 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
14531 * @vport: Pointer to the vport on which this sequence was received
14532 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14534 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
14535 * receive sequence is only partially assembed by the driver, it shall abort
14536 * the partially assembled frames for the sequence. Otherwise, if the
14537 * unsolicited receive sequence has been completely assembled and passed to
14538 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
14539 * unsolicited sequence has been aborted. After that, it will issue a basic
14540 * accept to accept the abort.
14543 lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
14544 struct hbq_dmabuf *dmabuf)
14546 struct lpfc_hba *phba = vport->phba;
14547 struct fc_frame_header fc_hdr;
14551 /* Make a copy of fc_hdr before the dmabuf being released */
14552 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
14553 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
14555 if (fctl & FC_FC_EX_CTX) {
14556 /* ABTS by responder to exchange, no cleanup needed */
14559 /* ABTS by initiator to exchange, need to do cleanup */
14560 aborted = lpfc_sli4_abort_partial_seq(vport, dmabuf);
14561 if (aborted == false)
14562 aborted = lpfc_sli4_abort_ulp_seq(vport, dmabuf);
14564 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14566 /* Respond with BA_ACC or BA_RJT accordingly */
14567 lpfc_sli4_seq_abort_rsp(vport, &fc_hdr, aborted);
14571 * lpfc_seq_complete - Indicates if a sequence is complete
14572 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14574 * This function checks the sequence, starting with the frame described by
14575 * @dmabuf, to see if all the frames associated with this sequence are present.
14576 * the frames associated with this sequence are linked to the @dmabuf using the
14577 * dbuf list. This function looks for two major things. 1) That the first frame
14578 * has a sequence count of zero. 2) There is a frame with last frame of sequence
14579 * set. 3) That there are no holes in the sequence count. The function will
14580 * return 1 when the sequence is complete, otherwise it will return 0.
14583 lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
14585 struct fc_frame_header *hdr;
14586 struct lpfc_dmabuf *d_buf;
14587 struct hbq_dmabuf *seq_dmabuf;
14591 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14592 /* make sure first fame of sequence has a sequence count of zero */
14593 if (hdr->fh_seq_cnt != seq_count)
14595 fctl = (hdr->fh_f_ctl[0] << 16 |
14596 hdr->fh_f_ctl[1] << 8 |
14598 /* If last frame of sequence we can return success. */
14599 if (fctl & FC_FC_END_SEQ)
14601 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
14602 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14603 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
14604 /* If there is a hole in the sequence count then fail. */
14605 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
14607 fctl = (hdr->fh_f_ctl[0] << 16 |
14608 hdr->fh_f_ctl[1] << 8 |
14610 /* If last frame of sequence we can return success. */
14611 if (fctl & FC_FC_END_SEQ)
14618 * lpfc_prep_seq - Prep sequence for ULP processing
14619 * @vport: Pointer to the vport on which this sequence was received
14620 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14622 * This function takes a sequence, described by a list of frames, and creates
14623 * a list of iocbq structures to describe the sequence. This iocbq list will be
14624 * used to issue to the generic unsolicited sequence handler. This routine
14625 * returns a pointer to the first iocbq in the list. If the function is unable
14626 * to allocate an iocbq then it throw out the received frames that were not
14627 * able to be described and return a pointer to the first iocbq. If unable to
14628 * allocate any iocbqs (including the first) this function will return NULL.
14630 static struct lpfc_iocbq *
14631 lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
14633 struct hbq_dmabuf *hbq_buf;
14634 struct lpfc_dmabuf *d_buf, *n_buf;
14635 struct lpfc_iocbq *first_iocbq, *iocbq;
14636 struct fc_frame_header *fc_hdr;
14638 uint32_t len, tot_len;
14639 struct ulp_bde64 *pbde;
14641 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
14642 /* remove from receive buffer list */
14643 list_del_init(&seq_dmabuf->hbuf.list);
14644 lpfc_update_rcv_time_stamp(vport);
14645 /* get the Remote Port's SID */
14646 sid = sli4_sid_from_fc_hdr(fc_hdr);
14648 /* Get an iocbq struct to fill in. */
14649 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
14651 /* Initialize the first IOCB. */
14652 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
14653 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
14655 /* Check FC Header to see what TYPE of frame we are rcv'ing */
14656 if (sli4_type_from_fc_hdr(fc_hdr) == FC_TYPE_ELS) {
14657 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_ELS64_CX;
14658 first_iocbq->iocb.un.rcvels.parmRo =
14659 sli4_did_from_fc_hdr(fc_hdr);
14660 first_iocbq->iocb.ulpPU = PARM_NPIV_DID;
14662 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
14663 first_iocbq->iocb.ulpContext = NO_XRI;
14664 first_iocbq->iocb.unsli3.rcvsli3.ox_id =
14665 be16_to_cpu(fc_hdr->fh_ox_id);
14666 /* iocbq is prepped for internal consumption. Physical vpi. */
14667 first_iocbq->iocb.unsli3.rcvsli3.vpi =
14668 vport->phba->vpi_ids[vport->vpi];
14669 /* put the first buffer into the first IOCBq */
14670 first_iocbq->context2 = &seq_dmabuf->dbuf;
14671 first_iocbq->context3 = NULL;
14672 first_iocbq->iocb.ulpBdeCount = 1;
14673 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
14674 LPFC_DATA_BUF_SIZE;
14675 first_iocbq->iocb.un.rcvels.remoteID = sid;
14676 tot_len = bf_get(lpfc_rcqe_length,
14677 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
14678 first_iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
14680 iocbq = first_iocbq;
14682 * Each IOCBq can have two Buffers assigned, so go through the list
14683 * of buffers for this sequence and save two buffers in each IOCBq
14685 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
14687 lpfc_in_buf_free(vport->phba, d_buf);
14690 if (!iocbq->context3) {
14691 iocbq->context3 = d_buf;
14692 iocbq->iocb.ulpBdeCount++;
14693 pbde = (struct ulp_bde64 *)
14694 &iocbq->iocb.unsli3.sli3Words[4];
14695 pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
14697 /* We need to get the size out of the right CQE */
14698 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14699 len = bf_get(lpfc_rcqe_length,
14700 &hbq_buf->cq_event.cqe.rcqe_cmpl);
14701 iocbq->iocb.unsli3.rcvsli3.acc_len += len;
14704 iocbq = lpfc_sli_get_iocbq(vport->phba);
14707 first_iocbq->iocb.ulpStatus =
14708 IOSTAT_FCP_RSP_ERROR;
14709 first_iocbq->iocb.un.ulpWord[4] =
14710 IOERR_NO_RESOURCES;
14712 lpfc_in_buf_free(vport->phba, d_buf);
14715 iocbq->context2 = d_buf;
14716 iocbq->context3 = NULL;
14717 iocbq->iocb.ulpBdeCount = 1;
14718 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
14719 LPFC_DATA_BUF_SIZE;
14721 /* We need to get the size out of the right CQE */
14722 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14723 len = bf_get(lpfc_rcqe_length,
14724 &hbq_buf->cq_event.cqe.rcqe_cmpl);
14726 iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
14728 iocbq->iocb.un.rcvels.remoteID = sid;
14729 list_add_tail(&iocbq->list, &first_iocbq->list);
14732 return first_iocbq;
14736 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
14737 struct hbq_dmabuf *seq_dmabuf)
14739 struct fc_frame_header *fc_hdr;
14740 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
14741 struct lpfc_hba *phba = vport->phba;
14743 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
14744 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
14746 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14747 "2707 Ring %d handler: Failed to allocate "
14748 "iocb Rctl x%x Type x%x received\n",
14750 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
14753 if (!lpfc_complete_unsol_iocb(phba,
14754 &phba->sli.ring[LPFC_ELS_RING],
14755 iocbq, fc_hdr->fh_r_ctl,
14757 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14758 "2540 Ring %d handler: unexpected Rctl "
14759 "x%x Type x%x received\n",
14761 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
14763 /* Free iocb created in lpfc_prep_seq */
14764 list_for_each_entry_safe(curr_iocb, next_iocb,
14765 &iocbq->list, list) {
14766 list_del_init(&curr_iocb->list);
14767 lpfc_sli_release_iocbq(phba, curr_iocb);
14769 lpfc_sli_release_iocbq(phba, iocbq);
14773 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
14774 * @phba: Pointer to HBA context object.
14776 * This function is called with no lock held. This function processes all
14777 * the received buffers and gives it to upper layers when a received buffer
14778 * indicates that it is the final frame in the sequence. The interrupt
14779 * service routine processes received buffers at interrupt contexts and adds
14780 * received dma buffers to the rb_pend_list queue and signals the worker thread.
14781 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
14782 * appropriate receive function when the final frame in a sequence is received.
14785 lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
14786 struct hbq_dmabuf *dmabuf)
14788 struct hbq_dmabuf *seq_dmabuf;
14789 struct fc_frame_header *fc_hdr;
14790 struct lpfc_vport *vport;
14794 /* Process each received buffer */
14795 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14796 /* check to see if this a valid type of frame */
14797 if (lpfc_fc_frame_check(phba, fc_hdr)) {
14798 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14801 if ((bf_get(lpfc_cqe_code,
14802 &dmabuf->cq_event.cqe.rcqe_cmpl) == CQE_CODE_RECEIVE_V1))
14803 fcfi = bf_get(lpfc_rcqe_fcf_id_v1,
14804 &dmabuf->cq_event.cqe.rcqe_cmpl);
14806 fcfi = bf_get(lpfc_rcqe_fcf_id,
14807 &dmabuf->cq_event.cqe.rcqe_cmpl);
14809 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi);
14811 /* throw out the frame */
14812 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14816 /* d_id this frame is directed to */
14817 did = sli4_did_from_fc_hdr(fc_hdr);
14819 /* vport is registered unless we rcv a FLOGI directed to Fabric_DID */
14820 if (!(vport->vpi_state & LPFC_VPI_REGISTERED) &&
14821 (did != Fabric_DID)) {
14823 * Throw out the frame if we are not pt2pt.
14824 * The pt2pt protocol allows for discovery frames
14825 * to be received without a registered VPI.
14827 if (!(vport->fc_flag & FC_PT2PT) ||
14828 (phba->link_state == LPFC_HBA_READY)) {
14829 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14834 /* Handle the basic abort sequence (BA_ABTS) event */
14835 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
14836 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
14840 /* Link this frame */
14841 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
14843 /* unable to add frame to vport - throw it out */
14844 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14847 /* If not last frame in sequence continue processing frames. */
14848 if (!lpfc_seq_complete(seq_dmabuf))
14851 /* Send the complete sequence to the upper layer protocol */
14852 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
14856 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
14857 * @phba: pointer to lpfc hba data structure.
14859 * This routine is invoked to post rpi header templates to the
14860 * HBA consistent with the SLI-4 interface spec. This routine
14861 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
14862 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
14864 * This routine does not require any locks. It's usage is expected
14865 * to be driver load or reset recovery when the driver is
14870 * -EIO - The mailbox failed to complete successfully.
14871 * When this error occurs, the driver is not guaranteed
14872 * to have any rpi regions posted to the device and
14873 * must either attempt to repost the regions or take a
14877 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
14879 struct lpfc_rpi_hdr *rpi_page;
14883 /* SLI4 ports that support extents do not require RPI headers. */
14884 if (!phba->sli4_hba.rpi_hdrs_in_use)
14886 if (phba->sli4_hba.extents_in_use)
14889 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
14891 * Assign the rpi headers a physical rpi only if the driver
14892 * has not initialized those resources. A port reset only
14893 * needs the headers posted.
14895 if (bf_get(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags) !=
14897 rpi_page->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
14899 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
14900 if (rc != MBX_SUCCESS) {
14901 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14902 "2008 Error %d posting all rpi "
14910 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags,
14911 LPFC_RPI_RSRC_RDY);
14916 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
14917 * @phba: pointer to lpfc hba data structure.
14918 * @rpi_page: pointer to the rpi memory region.
14920 * This routine is invoked to post a single rpi header to the
14921 * HBA consistent with the SLI-4 interface spec. This memory region
14922 * maps up to 64 rpi context regions.
14926 * -ENOMEM - No available memory
14927 * -EIO - The mailbox failed to complete successfully.
14930 lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
14932 LPFC_MBOXQ_t *mboxq;
14933 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
14935 uint32_t shdr_status, shdr_add_status;
14936 union lpfc_sli4_cfg_shdr *shdr;
14938 /* SLI4 ports that support extents do not require RPI headers. */
14939 if (!phba->sli4_hba.rpi_hdrs_in_use)
14941 if (phba->sli4_hba.extents_in_use)
14944 /* The port is notified of the header region via a mailbox command. */
14945 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14947 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14948 "2001 Unable to allocate memory for issuing "
14949 "SLI_CONFIG_SPECIAL mailbox command\n");
14953 /* Post all rpi memory regions to the port. */
14954 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
14955 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
14956 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
14957 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
14958 sizeof(struct lpfc_sli4_cfg_mhdr),
14959 LPFC_SLI4_MBX_EMBED);
14962 /* Post the physical rpi to the port for this rpi header. */
14963 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
14964 rpi_page->start_rpi);
14965 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
14966 hdr_tmpl, rpi_page->page_count);
14968 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
14969 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
14970 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
14971 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
14972 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14973 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14974 if (rc != MBX_TIMEOUT)
14975 mempool_free(mboxq, phba->mbox_mem_pool);
14976 if (shdr_status || shdr_add_status || rc) {
14977 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14978 "2514 POST_RPI_HDR mailbox failed with "
14979 "status x%x add_status x%x, mbx status x%x\n",
14980 shdr_status, shdr_add_status, rc);
14987 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
14988 * @phba: pointer to lpfc hba data structure.
14990 * This routine is invoked to post rpi header templates to the
14991 * HBA consistent with the SLI-4 interface spec. This routine
14992 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
14993 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
14996 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
14997 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
15000 lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
15003 uint16_t max_rpi, rpi_limit;
15004 uint16_t rpi_remaining, lrpi = 0;
15005 struct lpfc_rpi_hdr *rpi_hdr;
15007 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
15008 rpi_limit = phba->sli4_hba.next_rpi;
15011 * Fetch the next logical rpi. Because this index is logical,
15012 * the driver starts at 0 each time.
15014 spin_lock_irq(&phba->hbalock);
15015 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, 0);
15016 if (rpi >= rpi_limit)
15017 rpi = LPFC_RPI_ALLOC_ERROR;
15019 set_bit(rpi, phba->sli4_hba.rpi_bmask);
15020 phba->sli4_hba.max_cfg_param.rpi_used++;
15021 phba->sli4_hba.rpi_count++;
15025 * Don't try to allocate more rpi header regions if the device limit
15026 * has been exhausted.
15028 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
15029 (phba->sli4_hba.rpi_count >= max_rpi)) {
15030 spin_unlock_irq(&phba->hbalock);
15035 * RPI header postings are not required for SLI4 ports capable of
15038 if (!phba->sli4_hba.rpi_hdrs_in_use) {
15039 spin_unlock_irq(&phba->hbalock);
15044 * If the driver is running low on rpi resources, allocate another
15045 * page now. Note that the next_rpi value is used because
15046 * it represents how many are actually in use whereas max_rpi notes
15047 * how many are supported max by the device.
15049 rpi_remaining = phba->sli4_hba.next_rpi - phba->sli4_hba.rpi_count;
15050 spin_unlock_irq(&phba->hbalock);
15051 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
15052 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
15054 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15055 "2002 Error Could not grow rpi "
15058 lrpi = rpi_hdr->start_rpi;
15059 rpi_hdr->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
15060 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
15068 * lpfc_sli4_free_rpi - Release an rpi for reuse.
15069 * @phba: pointer to lpfc hba data structure.
15071 * This routine is invoked to release an rpi to the pool of
15072 * available rpis maintained by the driver.
15075 __lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
15077 if (test_and_clear_bit(rpi, phba->sli4_hba.rpi_bmask)) {
15078 phba->sli4_hba.rpi_count--;
15079 phba->sli4_hba.max_cfg_param.rpi_used--;
15084 * lpfc_sli4_free_rpi - Release an rpi for reuse.
15085 * @phba: pointer to lpfc hba data structure.
15087 * This routine is invoked to release an rpi to the pool of
15088 * available rpis maintained by the driver.
15091 lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
15093 spin_lock_irq(&phba->hbalock);
15094 __lpfc_sli4_free_rpi(phba, rpi);
15095 spin_unlock_irq(&phba->hbalock);
15099 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
15100 * @phba: pointer to lpfc hba data structure.
15102 * This routine is invoked to remove the memory region that
15103 * provided rpi via a bitmask.
15106 lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
15108 kfree(phba->sli4_hba.rpi_bmask);
15109 kfree(phba->sli4_hba.rpi_ids);
15110 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
15114 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
15115 * @phba: pointer to lpfc hba data structure.
15117 * This routine is invoked to remove the memory region that
15118 * provided rpi via a bitmask.
15121 lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp,
15122 void (*cmpl)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *arg)
15124 LPFC_MBOXQ_t *mboxq;
15125 struct lpfc_hba *phba = ndlp->phba;
15128 /* The port is notified of the header region via a mailbox command. */
15129 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15133 /* Post all rpi memory regions to the port. */
15134 lpfc_resume_rpi(mboxq, ndlp);
15136 mboxq->mbox_cmpl = cmpl;
15137 mboxq->context1 = arg;
15138 mboxq->context2 = ndlp;
15140 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15141 mboxq->vport = ndlp->vport;
15142 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15143 if (rc == MBX_NOT_FINISHED) {
15144 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15145 "2010 Resume RPI Mailbox failed "
15146 "status %d, mbxStatus x%x\n", rc,
15147 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
15148 mempool_free(mboxq, phba->mbox_mem_pool);
15155 * lpfc_sli4_init_vpi - Initialize a vpi with the port
15156 * @vport: Pointer to the vport for which the vpi is being initialized
15158 * This routine is invoked to activate a vpi with the port.
15162 * -Evalue otherwise
15165 lpfc_sli4_init_vpi(struct lpfc_vport *vport)
15167 LPFC_MBOXQ_t *mboxq;
15169 int retval = MBX_SUCCESS;
15171 struct lpfc_hba *phba = vport->phba;
15172 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15175 lpfc_init_vpi(phba, mboxq, vport->vpi);
15176 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
15177 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
15178 if (rc != MBX_SUCCESS) {
15179 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
15180 "2022 INIT VPI Mailbox failed "
15181 "status %d, mbxStatus x%x\n", rc,
15182 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
15185 if (rc != MBX_TIMEOUT)
15186 mempool_free(mboxq, vport->phba->mbox_mem_pool);
15192 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
15193 * @phba: pointer to lpfc hba data structure.
15194 * @mboxq: Pointer to mailbox object.
15196 * This routine is invoked to manually add a single FCF record. The caller
15197 * must pass a completely initialized FCF_Record. This routine takes
15198 * care of the nonembedded mailbox operations.
15201 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
15204 union lpfc_sli4_cfg_shdr *shdr;
15205 uint32_t shdr_status, shdr_add_status;
15207 virt_addr = mboxq->sge_array->addr[0];
15208 /* The IOCTL status is embedded in the mailbox subheader. */
15209 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
15210 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15211 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15213 if ((shdr_status || shdr_add_status) &&
15214 (shdr_status != STATUS_FCF_IN_USE))
15215 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15216 "2558 ADD_FCF_RECORD mailbox failed with "
15217 "status x%x add_status x%x\n",
15218 shdr_status, shdr_add_status);
15220 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15224 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
15225 * @phba: pointer to lpfc hba data structure.
15226 * @fcf_record: pointer to the initialized fcf record to add.
15228 * This routine is invoked to manually add a single FCF record. The caller
15229 * must pass a completely initialized FCF_Record. This routine takes
15230 * care of the nonembedded mailbox operations.
15233 lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
15236 LPFC_MBOXQ_t *mboxq;
15239 dma_addr_t phys_addr;
15240 struct lpfc_mbx_sge sge;
15241 uint32_t alloc_len, req_len;
15244 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15246 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15247 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
15251 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
15254 /* Allocate DMA memory and set up the non-embedded mailbox command */
15255 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
15256 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
15257 req_len, LPFC_SLI4_MBX_NEMBED);
15258 if (alloc_len < req_len) {
15259 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15260 "2523 Allocated DMA memory size (x%x) is "
15261 "less than the requested DMA memory "
15262 "size (x%x)\n", alloc_len, req_len);
15263 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15268 * Get the first SGE entry from the non-embedded DMA memory. This
15269 * routine only uses a single SGE.
15271 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
15272 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
15273 virt_addr = mboxq->sge_array->addr[0];
15275 * Configure the FCF record for FCFI 0. This is the driver's
15276 * hardcoded default and gets used in nonFIP mode.
15278 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
15279 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
15280 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
15283 * Copy the fcf_index and the FCF Record Data. The data starts after
15284 * the FCoE header plus word10. The data copy needs to be endian
15287 bytep += sizeof(uint32_t);
15288 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
15289 mboxq->vport = phba->pport;
15290 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
15291 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15292 if (rc == MBX_NOT_FINISHED) {
15293 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15294 "2515 ADD_FCF_RECORD mailbox failed with "
15295 "status 0x%x\n", rc);
15296 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15305 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
15306 * @phba: pointer to lpfc hba data structure.
15307 * @fcf_record: pointer to the fcf record to write the default data.
15308 * @fcf_index: FCF table entry index.
15310 * This routine is invoked to build the driver's default FCF record. The
15311 * values used are hardcoded. This routine handles memory initialization.
15315 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
15316 struct fcf_record *fcf_record,
15317 uint16_t fcf_index)
15319 memset(fcf_record, 0, sizeof(struct fcf_record));
15320 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
15321 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
15322 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
15323 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
15324 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
15325 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
15326 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
15327 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
15328 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
15329 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
15330 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
15331 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
15332 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
15333 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
15334 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
15335 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
15336 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
15337 /* Set the VLAN bit map */
15338 if (phba->valid_vlan) {
15339 fcf_record->vlan_bitmap[phba->vlan_id / 8]
15340 = 1 << (phba->vlan_id % 8);
15345 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
15346 * @phba: pointer to lpfc hba data structure.
15347 * @fcf_index: FCF table entry offset.
15349 * This routine is invoked to scan the entire FCF table by reading FCF
15350 * record and processing it one at a time starting from the @fcf_index
15351 * for initial FCF discovery or fast FCF failover rediscovery.
15353 * Return 0 if the mailbox command is submitted successfully, none 0
15357 lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
15360 LPFC_MBOXQ_t *mboxq;
15362 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
15363 phba->fcoe_cvl_eventtag_attn = phba->fcoe_cvl_eventtag;
15364 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15366 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15367 "2000 Failed to allocate mbox for "
15370 goto fail_fcf_scan;
15372 /* Construct the read FCF record mailbox command */
15373 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
15376 goto fail_fcf_scan;
15378 /* Issue the mailbox command asynchronously */
15379 mboxq->vport = phba->pport;
15380 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
15382 spin_lock_irq(&phba->hbalock);
15383 phba->hba_flag |= FCF_TS_INPROG;
15384 spin_unlock_irq(&phba->hbalock);
15386 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15387 if (rc == MBX_NOT_FINISHED)
15390 /* Reset eligible FCF count for new scan */
15391 if (fcf_index == LPFC_FCOE_FCF_GET_FIRST)
15392 phba->fcf.eligible_fcf_cnt = 0;
15398 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15399 /* FCF scan failed, clear FCF_TS_INPROG flag */
15400 spin_lock_irq(&phba->hbalock);
15401 phba->hba_flag &= ~FCF_TS_INPROG;
15402 spin_unlock_irq(&phba->hbalock);
15408 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
15409 * @phba: pointer to lpfc hba data structure.
15410 * @fcf_index: FCF table entry offset.
15412 * This routine is invoked to read an FCF record indicated by @fcf_index
15413 * and to use it for FLOGI roundrobin FCF failover.
15415 * Return 0 if the mailbox command is submitted successfully, none 0
15419 lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
15422 LPFC_MBOXQ_t *mboxq;
15424 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15426 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
15427 "2763 Failed to allocate mbox for "
15430 goto fail_fcf_read;
15432 /* Construct the read FCF record mailbox command */
15433 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
15436 goto fail_fcf_read;
15438 /* Issue the mailbox command asynchronously */
15439 mboxq->vport = phba->pport;
15440 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
15441 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15442 if (rc == MBX_NOT_FINISHED)
15448 if (error && mboxq)
15449 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15454 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
15455 * @phba: pointer to lpfc hba data structure.
15456 * @fcf_index: FCF table entry offset.
15458 * This routine is invoked to read an FCF record indicated by @fcf_index to
15459 * determine whether it's eligible for FLOGI roundrobin failover list.
15461 * Return 0 if the mailbox command is submitted successfully, none 0
15465 lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
15468 LPFC_MBOXQ_t *mboxq;
15470 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15472 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
15473 "2758 Failed to allocate mbox for "
15476 goto fail_fcf_read;
15478 /* Construct the read FCF record mailbox command */
15479 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
15482 goto fail_fcf_read;
15484 /* Issue the mailbox command asynchronously */
15485 mboxq->vport = phba->pport;
15486 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
15487 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15488 if (rc == MBX_NOT_FINISHED)
15494 if (error && mboxq)
15495 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15500 * lpfc_check_next_fcf_pri
15501 * phba pointer to the lpfc_hba struct for this port.
15502 * This routine is called from the lpfc_sli4_fcf_rr_next_index_get
15503 * routine when the rr_bmask is empty. The FCF indecies are put into the
15504 * rr_bmask based on their priority level. Starting from the highest priority
15505 * to the lowest. The most likely FCF candidate will be in the highest
15506 * priority group. When this routine is called it searches the fcf_pri list for
15507 * next lowest priority group and repopulates the rr_bmask with only those
15510 * 1=success 0=failure
15513 lpfc_check_next_fcf_pri_level(struct lpfc_hba *phba)
15515 uint16_t next_fcf_pri;
15516 uint16_t last_index;
15517 struct lpfc_fcf_pri *fcf_pri;
15521 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
15522 LPFC_SLI4_FCF_TBL_INDX_MAX);
15523 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15524 "3060 Last IDX %d\n", last_index);
15526 /* Verify the priority list has 2 or more entries */
15527 spin_lock_irq(&phba->hbalock);
15528 if (list_empty(&phba->fcf.fcf_pri_list) ||
15529 list_is_singular(&phba->fcf.fcf_pri_list)) {
15530 spin_unlock_irq(&phba->hbalock);
15531 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
15532 "3061 Last IDX %d\n", last_index);
15533 return 0; /* Empty rr list */
15535 spin_unlock_irq(&phba->hbalock);
15539 * Clear the rr_bmask and set all of the bits that are at this
15542 memset(phba->fcf.fcf_rr_bmask, 0,
15543 sizeof(*phba->fcf.fcf_rr_bmask));
15544 spin_lock_irq(&phba->hbalock);
15545 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
15546 if (fcf_pri->fcf_rec.flag & LPFC_FCF_FLOGI_FAILED)
15549 * the 1st priority that has not FLOGI failed
15550 * will be the highest.
15553 next_fcf_pri = fcf_pri->fcf_rec.priority;
15554 spin_unlock_irq(&phba->hbalock);
15555 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
15556 rc = lpfc_sli4_fcf_rr_index_set(phba,
15557 fcf_pri->fcf_rec.fcf_index);
15561 spin_lock_irq(&phba->hbalock);
15564 * if next_fcf_pri was not set above and the list is not empty then
15565 * we have failed flogis on all of them. So reset flogi failed
15566 * and start at the beginning.
15568 if (!next_fcf_pri && !list_empty(&phba->fcf.fcf_pri_list)) {
15569 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
15570 fcf_pri->fcf_rec.flag &= ~LPFC_FCF_FLOGI_FAILED;
15572 * the 1st priority that has not FLOGI failed
15573 * will be the highest.
15576 next_fcf_pri = fcf_pri->fcf_rec.priority;
15577 spin_unlock_irq(&phba->hbalock);
15578 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
15579 rc = lpfc_sli4_fcf_rr_index_set(phba,
15580 fcf_pri->fcf_rec.fcf_index);
15584 spin_lock_irq(&phba->hbalock);
15588 spin_unlock_irq(&phba->hbalock);
15593 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
15594 * @phba: pointer to lpfc hba data structure.
15596 * This routine is to get the next eligible FCF record index in a round
15597 * robin fashion. If the next eligible FCF record index equals to the
15598 * initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
15599 * shall be returned, otherwise, the next eligible FCF record's index
15600 * shall be returned.
15603 lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
15605 uint16_t next_fcf_index;
15608 /* Search start from next bit of currently registered FCF index */
15609 next_fcf_index = phba->fcf.current_rec.fcf_indx;
15612 /* Determine the next fcf index to check */
15613 next_fcf_index = (next_fcf_index + 1) % LPFC_SLI4_FCF_TBL_INDX_MAX;
15614 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
15615 LPFC_SLI4_FCF_TBL_INDX_MAX,
15618 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
15619 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
15621 * If we have wrapped then we need to clear the bits that
15622 * have been tested so that we can detect when we should
15623 * change the priority level.
15625 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
15626 LPFC_SLI4_FCF_TBL_INDX_MAX, 0);
15630 /* Check roundrobin failover list empty condition */
15631 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX ||
15632 next_fcf_index == phba->fcf.current_rec.fcf_indx) {
15634 * If next fcf index is not found check if there are lower
15635 * Priority level fcf's in the fcf_priority list.
15636 * Set up the rr_bmask with all of the avaiable fcf bits
15637 * at that level and continue the selection process.
15639 if (lpfc_check_next_fcf_pri_level(phba))
15640 goto initial_priority;
15641 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
15642 "2844 No roundrobin failover FCF available\n");
15643 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX)
15644 return LPFC_FCOE_FCF_NEXT_NONE;
15646 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
15647 "3063 Only FCF available idx %d, flag %x\n",
15649 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag);
15650 return next_fcf_index;
15654 if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX &&
15655 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag &
15656 LPFC_FCF_FLOGI_FAILED)
15657 goto next_priority;
15659 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15660 "2845 Get next roundrobin failover FCF (x%x)\n",
15663 return next_fcf_index;
15667 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
15668 * @phba: pointer to lpfc hba data structure.
15670 * This routine sets the FCF record index in to the eligible bmask for
15671 * roundrobin failover search. It checks to make sure that the index
15672 * does not go beyond the range of the driver allocated bmask dimension
15673 * before setting the bit.
15675 * Returns 0 if the index bit successfully set, otherwise, it returns
15679 lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
15681 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
15682 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
15683 "2610 FCF (x%x) reached driver's book "
15684 "keeping dimension:x%x\n",
15685 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
15688 /* Set the eligible FCF record index bmask */
15689 set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
15691 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15692 "2790 Set FCF (x%x) to roundrobin FCF failover "
15693 "bmask\n", fcf_index);
15699 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
15700 * @phba: pointer to lpfc hba data structure.
15702 * This routine clears the FCF record index from the eligible bmask for
15703 * roundrobin failover search. It checks to make sure that the index
15704 * does not go beyond the range of the driver allocated bmask dimension
15705 * before clearing the bit.
15708 lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
15710 struct lpfc_fcf_pri *fcf_pri;
15711 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
15712 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
15713 "2762 FCF (x%x) reached driver's book "
15714 "keeping dimension:x%x\n",
15715 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
15718 /* Clear the eligible FCF record index bmask */
15719 spin_lock_irq(&phba->hbalock);
15720 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
15721 if (fcf_pri->fcf_rec.fcf_index == fcf_index) {
15722 list_del_init(&fcf_pri->list);
15726 spin_unlock_irq(&phba->hbalock);
15727 clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
15729 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15730 "2791 Clear FCF (x%x) from roundrobin failover "
15731 "bmask\n", fcf_index);
15735 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
15736 * @phba: pointer to lpfc hba data structure.
15738 * This routine is the completion routine for the rediscover FCF table mailbox
15739 * command. If the mailbox command returned failure, it will try to stop the
15740 * FCF rediscover wait timer.
15743 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
15745 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
15746 uint32_t shdr_status, shdr_add_status;
15748 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
15750 shdr_status = bf_get(lpfc_mbox_hdr_status,
15751 &redisc_fcf->header.cfg_shdr.response);
15752 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
15753 &redisc_fcf->header.cfg_shdr.response);
15754 if (shdr_status || shdr_add_status) {
15755 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
15756 "2746 Requesting for FCF rediscovery failed "
15757 "status x%x add_status x%x\n",
15758 shdr_status, shdr_add_status);
15759 if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
15760 spin_lock_irq(&phba->hbalock);
15761 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
15762 spin_unlock_irq(&phba->hbalock);
15764 * CVL event triggered FCF rediscover request failed,
15765 * last resort to re-try current registered FCF entry.
15767 lpfc_retry_pport_discovery(phba);
15769 spin_lock_irq(&phba->hbalock);
15770 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
15771 spin_unlock_irq(&phba->hbalock);
15773 * DEAD FCF event triggered FCF rediscover request
15774 * failed, last resort to fail over as a link down
15775 * to FCF registration.
15777 lpfc_sli4_fcf_dead_failthrough(phba);
15780 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15781 "2775 Start FCF rediscover quiescent timer\n");
15783 * Start FCF rediscovery wait timer for pending FCF
15784 * before rescan FCF record table.
15786 lpfc_fcf_redisc_wait_start_timer(phba);
15789 mempool_free(mbox, phba->mbox_mem_pool);
15793 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
15794 * @phba: pointer to lpfc hba data structure.
15796 * This routine is invoked to request for rediscovery of the entire FCF table
15800 lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
15802 LPFC_MBOXQ_t *mbox;
15803 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
15806 /* Cancel retry delay timers to all vports before FCF rediscover */
15807 lpfc_cancel_all_vport_retry_delay_timer(phba);
15809 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15811 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15812 "2745 Failed to allocate mbox for "
15813 "requesting FCF rediscover.\n");
15817 length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
15818 sizeof(struct lpfc_sli4_cfg_mhdr));
15819 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15820 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
15821 length, LPFC_SLI4_MBX_EMBED);
15823 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
15824 /* Set count to 0 for invalidating the entire FCF database */
15825 bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
15827 /* Issue the mailbox command asynchronously */
15828 mbox->vport = phba->pport;
15829 mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
15830 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
15832 if (rc == MBX_NOT_FINISHED) {
15833 mempool_free(mbox, phba->mbox_mem_pool);
15840 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
15841 * @phba: pointer to lpfc hba data structure.
15843 * This function is the failover routine as a last resort to the FCF DEAD
15844 * event when driver failed to perform fast FCF failover.
15847 lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
15849 uint32_t link_state;
15852 * Last resort as FCF DEAD event failover will treat this as
15853 * a link down, but save the link state because we don't want
15854 * it to be changed to Link Down unless it is already down.
15856 link_state = phba->link_state;
15857 lpfc_linkdown(phba);
15858 phba->link_state = link_state;
15860 /* Unregister FCF if no devices connected to it */
15861 lpfc_unregister_unused_fcf(phba);
15865 * lpfc_sli_get_config_region23 - Get sli3 port region 23 data.
15866 * @phba: pointer to lpfc hba data structure.
15867 * @rgn23_data: pointer to configure region 23 data.
15869 * This function gets SLI3 port configure region 23 data through memory dump
15870 * mailbox command. When it successfully retrieves data, the size of the data
15871 * will be returned, otherwise, 0 will be returned.
15874 lpfc_sli_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
15876 LPFC_MBOXQ_t *pmb = NULL;
15878 uint32_t offset = 0;
15884 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15886 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15887 "2600 failed to allocate mailbox memory\n");
15893 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
15894 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
15896 if (rc != MBX_SUCCESS) {
15897 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15898 "2601 failed to read config "
15899 "region 23, rc 0x%x Status 0x%x\n",
15900 rc, mb->mbxStatus);
15901 mb->un.varDmp.word_cnt = 0;
15904 * dump mem may return a zero when finished or we got a
15905 * mailbox error, either way we are done.
15907 if (mb->un.varDmp.word_cnt == 0)
15909 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
15910 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
15912 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
15913 rgn23_data + offset,
15914 mb->un.varDmp.word_cnt);
15915 offset += mb->un.varDmp.word_cnt;
15916 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
15918 mempool_free(pmb, phba->mbox_mem_pool);
15923 * lpfc_sli4_get_config_region23 - Get sli4 port region 23 data.
15924 * @phba: pointer to lpfc hba data structure.
15925 * @rgn23_data: pointer to configure region 23 data.
15927 * This function gets SLI4 port configure region 23 data through memory dump
15928 * mailbox command. When it successfully retrieves data, the size of the data
15929 * will be returned, otherwise, 0 will be returned.
15932 lpfc_sli4_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
15934 LPFC_MBOXQ_t *mboxq = NULL;
15935 struct lpfc_dmabuf *mp = NULL;
15936 struct lpfc_mqe *mqe;
15937 uint32_t data_length = 0;
15943 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15945 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15946 "3105 failed to allocate mailbox memory\n");
15950 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq))
15952 mqe = &mboxq->u.mqe;
15953 mp = (struct lpfc_dmabuf *) mboxq->context1;
15954 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
15957 data_length = mqe->un.mb_words[5];
15958 if (data_length == 0)
15960 if (data_length > DMP_RGN23_SIZE) {
15964 lpfc_sli_pcimem_bcopy((char *)mp->virt, rgn23_data, data_length);
15966 mempool_free(mboxq, phba->mbox_mem_pool);
15968 lpfc_mbuf_free(phba, mp->virt, mp->phys);
15971 return data_length;
15975 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
15976 * @phba: pointer to lpfc hba data structure.
15978 * This function read region 23 and parse TLV for port status to
15979 * decide if the user disaled the port. If the TLV indicates the
15980 * port is disabled, the hba_flag is set accordingly.
15983 lpfc_sli_read_link_ste(struct lpfc_hba *phba)
15985 uint8_t *rgn23_data = NULL;
15986 uint32_t if_type, data_size, sub_tlv_len, tlv_offset;
15987 uint32_t offset = 0;
15989 /* Get adapter Region 23 data */
15990 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
15994 if (phba->sli_rev < LPFC_SLI_REV4)
15995 data_size = lpfc_sli_get_config_region23(phba, rgn23_data);
15997 if_type = bf_get(lpfc_sli_intf_if_type,
15998 &phba->sli4_hba.sli_intf);
15999 if (if_type == LPFC_SLI_INTF_IF_TYPE_0)
16001 data_size = lpfc_sli4_get_config_region23(phba, rgn23_data);
16007 /* Check the region signature first */
16008 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
16009 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16010 "2619 Config region 23 has bad signature\n");
16015 /* Check the data structure version */
16016 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
16017 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16018 "2620 Config region 23 has bad version\n");
16023 /* Parse TLV entries in the region */
16024 while (offset < data_size) {
16025 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
16028 * If the TLV is not driver specific TLV or driver id is
16029 * not linux driver id, skip the record.
16031 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
16032 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
16033 (rgn23_data[offset + 3] != 0)) {
16034 offset += rgn23_data[offset + 1] * 4 + 4;
16038 /* Driver found a driver specific TLV in the config region */
16039 sub_tlv_len = rgn23_data[offset + 1] * 4;
16044 * Search for configured port state sub-TLV.
16046 while ((offset < data_size) &&
16047 (tlv_offset < sub_tlv_len)) {
16048 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
16053 if (rgn23_data[offset] != PORT_STE_TYPE) {
16054 offset += rgn23_data[offset + 1] * 4 + 4;
16055 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
16059 /* This HBA contains PORT_STE configured */
16060 if (!rgn23_data[offset + 2])
16061 phba->hba_flag |= LINK_DISABLED;
16073 * lpfc_wr_object - write an object to the firmware
16074 * @phba: HBA structure that indicates port to create a queue on.
16075 * @dmabuf_list: list of dmabufs to write to the port.
16076 * @size: the total byte value of the objects to write to the port.
16077 * @offset: the current offset to be used to start the transfer.
16079 * This routine will create a wr_object mailbox command to send to the port.
16080 * the mailbox command will be constructed using the dma buffers described in
16081 * @dmabuf_list to create a list of BDEs. This routine will fill in as many
16082 * BDEs that the imbedded mailbox can support. The @offset variable will be
16083 * used to indicate the starting offset of the transfer and will also return
16084 * the offset after the write object mailbox has completed. @size is used to
16085 * determine the end of the object and whether the eof bit should be set.
16087 * Return 0 is successful and offset will contain the the new offset to use
16088 * for the next write.
16089 * Return negative value for error cases.
16092 lpfc_wr_object(struct lpfc_hba *phba, struct list_head *dmabuf_list,
16093 uint32_t size, uint32_t *offset)
16095 struct lpfc_mbx_wr_object *wr_object;
16096 LPFC_MBOXQ_t *mbox;
16098 uint32_t shdr_status, shdr_add_status;
16100 union lpfc_sli4_cfg_shdr *shdr;
16101 struct lpfc_dmabuf *dmabuf;
16102 uint32_t written = 0;
16104 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16108 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16109 LPFC_MBOX_OPCODE_WRITE_OBJECT,
16110 sizeof(struct lpfc_mbx_wr_object) -
16111 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
16113 wr_object = (struct lpfc_mbx_wr_object *)&mbox->u.mqe.un.wr_object;
16114 wr_object->u.request.write_offset = *offset;
16115 sprintf((uint8_t *)wr_object->u.request.object_name, "/");
16116 wr_object->u.request.object_name[0] =
16117 cpu_to_le32(wr_object->u.request.object_name[0]);
16118 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 0);
16119 list_for_each_entry(dmabuf, dmabuf_list, list) {
16120 if (i >= LPFC_MBX_WR_CONFIG_MAX_BDE || written >= size)
16122 wr_object->u.request.bde[i].addrLow = putPaddrLow(dmabuf->phys);
16123 wr_object->u.request.bde[i].addrHigh =
16124 putPaddrHigh(dmabuf->phys);
16125 if (written + SLI4_PAGE_SIZE >= size) {
16126 wr_object->u.request.bde[i].tus.f.bdeSize =
16128 written += (size - written);
16129 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 1);
16131 wr_object->u.request.bde[i].tus.f.bdeSize =
16133 written += SLI4_PAGE_SIZE;
16137 wr_object->u.request.bde_count = i;
16138 bf_set(lpfc_wr_object_write_length, &wr_object->u.request, written);
16139 if (!phba->sli4_hba.intr_enable)
16140 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16142 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
16143 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16145 /* The IOCTL status is embedded in the mailbox subheader. */
16146 shdr = (union lpfc_sli4_cfg_shdr *) &wr_object->header.cfg_shdr;
16147 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16148 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16149 if (rc != MBX_TIMEOUT)
16150 mempool_free(mbox, phba->mbox_mem_pool);
16151 if (shdr_status || shdr_add_status || rc) {
16152 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16153 "3025 Write Object mailbox failed with "
16154 "status x%x add_status x%x, mbx status x%x\n",
16155 shdr_status, shdr_add_status, rc);
16158 *offset += wr_object->u.response.actual_write_length;
16163 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
16164 * @vport: pointer to vport data structure.
16166 * This function iterate through the mailboxq and clean up all REG_LOGIN
16167 * and REG_VPI mailbox commands associated with the vport. This function
16168 * is called when driver want to restart discovery of the vport due to
16169 * a Clear Virtual Link event.
16172 lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
16174 struct lpfc_hba *phba = vport->phba;
16175 LPFC_MBOXQ_t *mb, *nextmb;
16176 struct lpfc_dmabuf *mp;
16177 struct lpfc_nodelist *ndlp;
16178 struct lpfc_nodelist *act_mbx_ndlp = NULL;
16179 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
16180 LIST_HEAD(mbox_cmd_list);
16181 uint8_t restart_loop;
16183 /* Clean up internally queued mailbox commands with the vport */
16184 spin_lock_irq(&phba->hbalock);
16185 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
16186 if (mb->vport != vport)
16189 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
16190 (mb->u.mb.mbxCommand != MBX_REG_VPI))
16193 list_del(&mb->list);
16194 list_add_tail(&mb->list, &mbox_cmd_list);
16196 /* Clean up active mailbox command with the vport */
16197 mb = phba->sli.mbox_active;
16198 if (mb && (mb->vport == vport)) {
16199 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
16200 (mb->u.mb.mbxCommand == MBX_REG_VPI))
16201 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16202 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
16203 act_mbx_ndlp = (struct lpfc_nodelist *)mb->context2;
16204 /* Put reference count for delayed processing */
16205 act_mbx_ndlp = lpfc_nlp_get(act_mbx_ndlp);
16206 /* Unregister the RPI when mailbox complete */
16207 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
16210 /* Cleanup any mailbox completions which are not yet processed */
16213 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
16215 * If this mailox is already processed or it is
16216 * for another vport ignore it.
16218 if ((mb->vport != vport) ||
16219 (mb->mbox_flag & LPFC_MBX_IMED_UNREG))
16222 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
16223 (mb->u.mb.mbxCommand != MBX_REG_VPI))
16226 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16227 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
16228 ndlp = (struct lpfc_nodelist *)mb->context2;
16229 /* Unregister the RPI when mailbox complete */
16230 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
16232 spin_unlock_irq(&phba->hbalock);
16233 spin_lock(shost->host_lock);
16234 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
16235 spin_unlock(shost->host_lock);
16236 spin_lock_irq(&phba->hbalock);
16240 } while (restart_loop);
16242 spin_unlock_irq(&phba->hbalock);
16244 /* Release the cleaned-up mailbox commands */
16245 while (!list_empty(&mbox_cmd_list)) {
16246 list_remove_head(&mbox_cmd_list, mb, LPFC_MBOXQ_t, list);
16247 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
16248 mp = (struct lpfc_dmabuf *) (mb->context1);
16250 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
16253 ndlp = (struct lpfc_nodelist *) mb->context2;
16254 mb->context2 = NULL;
16256 spin_lock(shost->host_lock);
16257 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
16258 spin_unlock(shost->host_lock);
16259 lpfc_nlp_put(ndlp);
16262 mempool_free(mb, phba->mbox_mem_pool);
16265 /* Release the ndlp with the cleaned-up active mailbox command */
16266 if (act_mbx_ndlp) {
16267 spin_lock(shost->host_lock);
16268 act_mbx_ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
16269 spin_unlock(shost->host_lock);
16270 lpfc_nlp_put(act_mbx_ndlp);
16275 * lpfc_drain_txq - Drain the txq
16276 * @phba: Pointer to HBA context object.
16278 * This function attempt to submit IOCBs on the txq
16279 * to the adapter. For SLI4 adapters, the txq contains
16280 * ELS IOCBs that have been deferred because the there
16281 * are no SGLs. This congestion can occur with large
16282 * vport counts during node discovery.
16286 lpfc_drain_txq(struct lpfc_hba *phba)
16288 LIST_HEAD(completions);
16289 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
16290 struct lpfc_iocbq *piocbq = 0;
16291 unsigned long iflags = 0;
16292 char *fail_msg = NULL;
16293 struct lpfc_sglq *sglq;
16294 union lpfc_wqe wqe;
16297 spin_lock_irqsave(&phba->hbalock, iflags);
16298 list_for_each_entry(piocbq, &pring->txq, list) {
16302 if (txq_cnt > pring->txq_max)
16303 pring->txq_max = txq_cnt;
16305 spin_unlock_irqrestore(&phba->hbalock, iflags);
16307 while (!list_empty(&pring->txq)) {
16308 spin_lock_irqsave(&phba->hbalock, iflags);
16310 piocbq = lpfc_sli_ringtx_get(phba, pring);
16312 spin_unlock_irqrestore(&phba->hbalock, iflags);
16313 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16314 "2823 txq empty and txq_cnt is %d\n ",
16318 sglq = __lpfc_sli_get_sglq(phba, piocbq);
16320 __lpfc_sli_ringtx_put(phba, pring, piocbq);
16321 spin_unlock_irqrestore(&phba->hbalock, iflags);
16326 /* The xri and iocb resources secured,
16327 * attempt to issue request
16329 piocbq->sli4_lxritag = sglq->sli4_lxritag;
16330 piocbq->sli4_xritag = sglq->sli4_xritag;
16331 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocbq, sglq))
16332 fail_msg = "to convert bpl to sgl";
16333 else if (lpfc_sli4_iocb2wqe(phba, piocbq, &wqe))
16334 fail_msg = "to convert iocb to wqe";
16335 else if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
16336 fail_msg = " - Wq is full";
16338 lpfc_sli_ringtxcmpl_put(phba, pring, piocbq);
16341 /* Failed means we can't issue and need to cancel */
16342 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16343 "2822 IOCB failed %s iotag 0x%x "
16346 piocbq->iotag, piocbq->sli4_xritag);
16347 list_add_tail(&piocbq->list, &completions);
16349 spin_unlock_irqrestore(&phba->hbalock, iflags);
16352 /* Cancel all the IOCBs that cannot be issued */
16353 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
16354 IOERR_SLI_ABORTED);