2 /*******************************************************************
3 * This file is part of the Emulex Linux Device Driver for *
4 * Fibre Channel Host Bus Adapters. *
5 * Copyright (C) 2017 Broadcom. All Rights Reserved. The term *
6 * “Broadcom” refers to Broadcom Limited and/or its subsidiaries. *
7 * Copyright (C) 2004-2016 Emulex. All rights reserved. *
8 * EMULEX and SLI are trademarks of Emulex. *
10 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
12 * This program is free software; you can redistribute it and/or *
13 * modify it under the terms of version 2 of the GNU General *
14 * Public License as published by the Free Software Foundation. *
15 * This program is distributed in the hope that it will be useful. *
16 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
17 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
18 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
19 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
20 * TO BE LEGALLY INVALID. See the GNU General Public License for *
21 * more details, a copy of which can be found in the file COPYING *
22 * included with this package. *
23 *******************************************************************/
25 #include <linux/blkdev.h>
26 #include <linux/pci.h>
27 #include <linux/interrupt.h>
28 #include <linux/delay.h>
29 #include <linux/slab.h>
30 #include <linux/lockdep.h>
32 #include <scsi/scsi.h>
33 #include <scsi/scsi_cmnd.h>
34 #include <scsi/scsi_device.h>
35 #include <scsi/scsi_host.h>
36 #include <scsi/scsi_transport_fc.h>
37 #include <scsi/fc/fc_fs.h>
38 #include <linux/aer.h>
40 #include <linux/nvme-fc-driver.h>
45 #include "lpfc_sli4.h"
47 #include "lpfc_disc.h"
49 #include "lpfc_scsi.h"
50 #include "lpfc_nvme.h"
51 #include "lpfc_nvmet.h"
52 #include "lpfc_crtn.h"
53 #include "lpfc_logmsg.h"
54 #include "lpfc_compat.h"
55 #include "lpfc_debugfs.h"
56 #include "lpfc_vport.h"
57 #include "lpfc_version.h"
59 /* There are only four IOCB completion types. */
60 typedef enum _lpfc_iocb_type {
68 /* Provide function prototypes local to this module. */
69 static int lpfc_sli_issue_mbox_s4(struct lpfc_hba *, LPFC_MBOXQ_t *,
71 static int lpfc_sli4_read_rev(struct lpfc_hba *, LPFC_MBOXQ_t *,
72 uint8_t *, uint32_t *);
73 static struct lpfc_iocbq *lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *,
75 static void lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *,
77 static int lpfc_sli4_fp_handle_cqe(struct lpfc_hba *, struct lpfc_queue *,
79 static int lpfc_sli4_post_sgl_list(struct lpfc_hba *, struct list_head *,
81 static void lpfc_sli4_hba_handle_eqe(struct lpfc_hba *, struct lpfc_eqe *,
83 static bool lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba);
84 static bool lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba);
85 static int lpfc_sli4_abort_nvme_io(struct lpfc_hba *phba,
86 struct lpfc_sli_ring *pring,
87 struct lpfc_iocbq *cmdiocb);
90 lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq)
96 * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
97 * @q: The Work Queue to operate on.
98 * @wqe: The work Queue Entry to put on the Work queue.
100 * This routine will copy the contents of @wqe to the next available entry on
101 * the @q. This function will then ring the Work Queue Doorbell to signal the
102 * HBA to start processing the Work Queue Entry. This function returns 0 if
103 * successful. If no entries are available on @q then this function will return
105 * The caller is expected to hold the hbalock when calling this routine.
108 lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe)
110 union lpfc_wqe *temp_wqe;
111 struct lpfc_register doorbell;
115 /* sanity check on queue memory */
118 temp_wqe = q->qe[q->host_index].wqe;
120 /* If the host has not yet processed the next entry then we are done */
121 idx = ((q->host_index + 1) % q->entry_count);
122 if (idx == q->hba_index) {
127 /* set consumption flag every once in a while */
128 if (!((q->host_index + 1) % q->entry_repost))
129 bf_set(wqe_wqec, &wqe->generic.wqe_com, 1);
130 if (q->phba->sli3_options & LPFC_SLI4_PHWQ_ENABLED)
131 bf_set(wqe_wqid, &wqe->generic.wqe_com, q->queue_id);
132 lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size);
133 /* ensure WQE bcopy flushed before doorbell write */
136 /* Update the host index before invoking device */
137 host_index = q->host_index;
143 if (q->db_format == LPFC_DB_LIST_FORMAT) {
144 bf_set(lpfc_wq_db_list_fm_num_posted, &doorbell, 1);
145 bf_set(lpfc_wq_db_list_fm_index, &doorbell, host_index);
146 bf_set(lpfc_wq_db_list_fm_id, &doorbell, q->queue_id);
147 } else if (q->db_format == LPFC_DB_RING_FORMAT) {
148 bf_set(lpfc_wq_db_ring_fm_num_posted, &doorbell, 1);
149 bf_set(lpfc_wq_db_ring_fm_id, &doorbell, q->queue_id);
153 writel(doorbell.word0, q->db_regaddr);
159 * lpfc_sli4_wq_release - Updates internal hba index for WQ
160 * @q: The Work Queue to operate on.
161 * @index: The index to advance the hba index to.
163 * This routine will update the HBA index of a queue to reflect consumption of
164 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
165 * an entry the host calls this function to update the queue's internal
166 * pointers. This routine returns the number of entries that were consumed by
170 lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index)
172 uint32_t released = 0;
174 /* sanity check on queue memory */
178 if (q->hba_index == index)
181 q->hba_index = ((q->hba_index + 1) % q->entry_count);
183 } while (q->hba_index != index);
188 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
189 * @q: The Mailbox Queue to operate on.
190 * @wqe: The Mailbox Queue Entry to put on the Work queue.
192 * This routine will copy the contents of @mqe to the next available entry on
193 * the @q. This function will then ring the Work Queue Doorbell to signal the
194 * HBA to start processing the Work Queue Entry. This function returns 0 if
195 * successful. If no entries are available on @q then this function will return
197 * The caller is expected to hold the hbalock when calling this routine.
200 lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
202 struct lpfc_mqe *temp_mqe;
203 struct lpfc_register doorbell;
205 /* sanity check on queue memory */
208 temp_mqe = q->qe[q->host_index].mqe;
210 /* If the host has not yet processed the next entry then we are done */
211 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
213 lpfc_sli_pcimem_bcopy(mqe, temp_mqe, q->entry_size);
214 /* Save off the mailbox pointer for completion */
215 q->phba->mbox = (MAILBOX_t *)temp_mqe;
217 /* Update the host index before invoking device */
218 q->host_index = ((q->host_index + 1) % q->entry_count);
222 bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1);
223 bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id);
224 writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr);
229 * lpfc_sli4_mq_release - Updates internal hba index for MQ
230 * @q: The Mailbox Queue to operate on.
232 * This routine will update the HBA index of a queue to reflect consumption of
233 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
234 * an entry the host calls this function to update the queue's internal
235 * pointers. This routine returns the number of entries that were consumed by
239 lpfc_sli4_mq_release(struct lpfc_queue *q)
241 /* sanity check on queue memory */
245 /* Clear the mailbox pointer for completion */
246 q->phba->mbox = NULL;
247 q->hba_index = ((q->hba_index + 1) % q->entry_count);
252 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
253 * @q: The Event Queue to get the first valid EQE from
255 * This routine will get the first valid Event Queue Entry from @q, update
256 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
257 * the Queue (no more work to do), or the Queue is full of EQEs that have been
258 * processed, but not popped back to the HBA then this routine will return NULL.
260 static struct lpfc_eqe *
261 lpfc_sli4_eq_get(struct lpfc_queue *q)
263 struct lpfc_eqe *eqe;
266 /* sanity check on queue memory */
269 eqe = q->qe[q->hba_index].eqe;
271 /* If the next EQE is not valid then we are done */
272 if (!bf_get_le32(lpfc_eqe_valid, eqe))
274 /* If the host has not yet processed the next entry then we are done */
275 idx = ((q->hba_index + 1) % q->entry_count);
276 if (idx == q->host_index)
282 * insert barrier for instruction interlock : data from the hardware
283 * must have the valid bit checked before it can be copied and acted
284 * upon. Speculative instructions were allowing a bcopy at the start
285 * of lpfc_sli4_fp_handle_wcqe(), which is called immediately
286 * after our return, to copy data before the valid bit check above
287 * was done. As such, some of the copied data was stale. The barrier
288 * ensures the check is before any data is copied.
295 * lpfc_sli4_eq_clr_intr - Turn off interrupts from this EQ
296 * @q: The Event Queue to disable interrupts
300 lpfc_sli4_eq_clr_intr(struct lpfc_queue *q)
302 struct lpfc_register doorbell;
305 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
306 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
307 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
308 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
309 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
310 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
314 * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
315 * @q: The Event Queue that the host has completed processing for.
316 * @arm: Indicates whether the host wants to arms this CQ.
318 * This routine will mark all Event Queue Entries on @q, from the last
319 * known completed entry to the last entry that was processed, as completed
320 * by clearing the valid bit for each completion queue entry. Then it will
321 * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
322 * The internal host index in the @q will be updated by this routine to indicate
323 * that the host has finished processing the entries. The @arm parameter
324 * indicates that the queue should be rearmed when ringing the doorbell.
326 * This function will return the number of EQEs that were popped.
329 lpfc_sli4_eq_release(struct lpfc_queue *q, bool arm)
331 uint32_t released = 0;
332 struct lpfc_eqe *temp_eqe;
333 struct lpfc_register doorbell;
335 /* sanity check on queue memory */
339 /* while there are valid entries */
340 while (q->hba_index != q->host_index) {
341 temp_eqe = q->qe[q->host_index].eqe;
342 bf_set_le32(lpfc_eqe_valid, temp_eqe, 0);
344 q->host_index = ((q->host_index + 1) % q->entry_count);
346 if (unlikely(released == 0 && !arm))
349 /* ring doorbell for number popped */
352 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
353 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
355 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
356 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
357 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
358 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
359 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
360 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
361 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
362 if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
363 readl(q->phba->sli4_hba.EQCQDBregaddr);
368 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
369 * @q: The Completion Queue to get the first valid CQE from
371 * This routine will get the first valid Completion Queue Entry from @q, update
372 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
373 * the Queue (no more work to do), or the Queue is full of CQEs that have been
374 * processed, but not popped back to the HBA then this routine will return NULL.
376 static struct lpfc_cqe *
377 lpfc_sli4_cq_get(struct lpfc_queue *q)
379 struct lpfc_cqe *cqe;
382 /* sanity check on queue memory */
386 /* If the next CQE is not valid then we are done */
387 if (!bf_get_le32(lpfc_cqe_valid, q->qe[q->hba_index].cqe))
389 /* If the host has not yet processed the next entry then we are done */
390 idx = ((q->hba_index + 1) % q->entry_count);
391 if (idx == q->host_index)
394 cqe = q->qe[q->hba_index].cqe;
398 * insert barrier for instruction interlock : data from the hardware
399 * must have the valid bit checked before it can be copied and acted
400 * upon. Given what was seen in lpfc_sli4_cq_get() of speculative
401 * instructions allowing action on content before valid bit checked,
402 * add barrier here as well. May not be needed as "content" is a
403 * single 32-bit entity here (vs multi word structure for cq's).
410 * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ
411 * @q: The Completion Queue that the host has completed processing for.
412 * @arm: Indicates whether the host wants to arms this CQ.
414 * This routine will mark all Completion queue entries on @q, from the last
415 * known completed entry to the last entry that was processed, as completed
416 * by clearing the valid bit for each completion queue entry. Then it will
417 * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
418 * The internal host index in the @q will be updated by this routine to indicate
419 * that the host has finished processing the entries. The @arm parameter
420 * indicates that the queue should be rearmed when ringing the doorbell.
422 * This function will return the number of CQEs that were released.
425 lpfc_sli4_cq_release(struct lpfc_queue *q, bool arm)
427 uint32_t released = 0;
428 struct lpfc_cqe *temp_qe;
429 struct lpfc_register doorbell;
431 /* sanity check on queue memory */
434 /* while there are valid entries */
435 while (q->hba_index != q->host_index) {
436 temp_qe = q->qe[q->host_index].cqe;
437 bf_set_le32(lpfc_cqe_valid, temp_qe, 0);
439 q->host_index = ((q->host_index + 1) % q->entry_count);
441 if (unlikely(released == 0 && !arm))
444 /* ring doorbell for number popped */
447 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
448 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
449 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION);
450 bf_set(lpfc_eqcq_doorbell_cqid_hi, &doorbell,
451 (q->queue_id >> LPFC_CQID_HI_FIELD_SHIFT));
452 bf_set(lpfc_eqcq_doorbell_cqid_lo, &doorbell, q->queue_id);
453 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
458 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
459 * @q: The Header Receive Queue to operate on.
460 * @wqe: The Receive Queue Entry to put on the Receive queue.
462 * This routine will copy the contents of @wqe to the next available entry on
463 * the @q. This function will then ring the Receive Queue Doorbell to signal the
464 * HBA to start processing the Receive Queue Entry. This function returns the
465 * index that the rqe was copied to if successful. If no entries are available
466 * on @q then this function will return -ENOMEM.
467 * The caller is expected to hold the hbalock when calling this routine.
470 lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
471 struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe)
473 struct lpfc_rqe *temp_hrqe;
474 struct lpfc_rqe *temp_drqe;
475 struct lpfc_register doorbell;
478 /* sanity check on queue memory */
479 if (unlikely(!hq) || unlikely(!dq))
481 put_index = hq->host_index;
482 temp_hrqe = hq->qe[hq->host_index].rqe;
483 temp_drqe = dq->qe[dq->host_index].rqe;
485 if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ)
487 if (hq->host_index != dq->host_index)
489 /* If the host has not yet processed the next entry then we are done */
490 if (((hq->host_index + 1) % hq->entry_count) == hq->hba_index)
492 lpfc_sli_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size);
493 lpfc_sli_pcimem_bcopy(drqe, temp_drqe, dq->entry_size);
495 /* Update the host index to point to the next slot */
496 hq->host_index = ((hq->host_index + 1) % hq->entry_count);
497 dq->host_index = ((dq->host_index + 1) % dq->entry_count);
499 /* Ring The Header Receive Queue Doorbell */
500 if (!(hq->host_index % hq->entry_repost)) {
502 if (hq->db_format == LPFC_DB_RING_FORMAT) {
503 bf_set(lpfc_rq_db_ring_fm_num_posted, &doorbell,
505 bf_set(lpfc_rq_db_ring_fm_id, &doorbell, hq->queue_id);
506 } else if (hq->db_format == LPFC_DB_LIST_FORMAT) {
507 bf_set(lpfc_rq_db_list_fm_num_posted, &doorbell,
509 bf_set(lpfc_rq_db_list_fm_index, &doorbell,
511 bf_set(lpfc_rq_db_list_fm_id, &doorbell, hq->queue_id);
515 writel(doorbell.word0, hq->db_regaddr);
521 * lpfc_sli4_rq_release - Updates internal hba index for RQ
522 * @q: The Header Receive Queue to operate on.
524 * This routine will update the HBA index of a queue to reflect consumption of
525 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
526 * consumed an entry the host calls this function to update the queue's
527 * internal pointers. This routine returns the number of entries that were
528 * consumed by the HBA.
531 lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq)
533 /* sanity check on queue memory */
534 if (unlikely(!hq) || unlikely(!dq))
537 if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ))
539 hq->hba_index = ((hq->hba_index + 1) % hq->entry_count);
540 dq->hba_index = ((dq->hba_index + 1) % dq->entry_count);
545 * lpfc_cmd_iocb - Get next command iocb entry in the ring
546 * @phba: Pointer to HBA context object.
547 * @pring: Pointer to driver SLI ring object.
549 * This function returns pointer to next command iocb entry
550 * in the command ring. The caller must hold hbalock to prevent
551 * other threads consume the next command iocb.
552 * SLI-2/SLI-3 provide different sized iocbs.
554 static inline IOCB_t *
555 lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
557 return (IOCB_t *) (((char *) pring->sli.sli3.cmdringaddr) +
558 pring->sli.sli3.cmdidx * phba->iocb_cmd_size);
562 * lpfc_resp_iocb - Get next response iocb entry in the ring
563 * @phba: Pointer to HBA context object.
564 * @pring: Pointer to driver SLI ring object.
566 * This function returns pointer to next response iocb entry
567 * in the response ring. The caller must hold hbalock to make sure
568 * that no other thread consume the next response iocb.
569 * SLI-2/SLI-3 provide different sized iocbs.
571 static inline IOCB_t *
572 lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
574 return (IOCB_t *) (((char *) pring->sli.sli3.rspringaddr) +
575 pring->sli.sli3.rspidx * phba->iocb_rsp_size);
579 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
580 * @phba: Pointer to HBA context object.
582 * This function is called with hbalock held. This function
583 * allocates a new driver iocb object from the iocb pool. If the
584 * allocation is successful, it returns pointer to the newly
585 * allocated iocb object else it returns NULL.
588 __lpfc_sli_get_iocbq(struct lpfc_hba *phba)
590 struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
591 struct lpfc_iocbq * iocbq = NULL;
593 lockdep_assert_held(&phba->hbalock);
595 list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
598 if (phba->iocb_cnt > phba->iocb_max)
599 phba->iocb_max = phba->iocb_cnt;
604 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
605 * @phba: Pointer to HBA context object.
606 * @xritag: XRI value.
608 * This function clears the sglq pointer from the array of acive
609 * sglq's. The xritag that is passed in is used to index into the
610 * array. Before the xritag can be used it needs to be adjusted
611 * by subtracting the xribase.
613 * Returns sglq ponter = success, NULL = Failure.
616 __lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
618 struct lpfc_sglq *sglq;
620 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
621 phba->sli4_hba.lpfc_sglq_active_list[xritag] = NULL;
626 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
627 * @phba: Pointer to HBA context object.
628 * @xritag: XRI value.
630 * This function returns the sglq pointer from the array of acive
631 * sglq's. The xritag that is passed in is used to index into the
632 * array. Before the xritag can be used it needs to be adjusted
633 * by subtracting the xribase.
635 * Returns sglq ponter = success, NULL = Failure.
638 __lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
640 struct lpfc_sglq *sglq;
642 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
647 * lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
648 * @phba: Pointer to HBA context object.
649 * @xritag: xri used in this exchange.
650 * @rrq: The RRQ to be cleared.
654 lpfc_clr_rrq_active(struct lpfc_hba *phba,
656 struct lpfc_node_rrq *rrq)
658 struct lpfc_nodelist *ndlp = NULL;
660 if ((rrq->vport) && NLP_CHK_NODE_ACT(rrq->ndlp))
661 ndlp = lpfc_findnode_did(rrq->vport, rrq->nlp_DID);
663 /* The target DID could have been swapped (cable swap)
664 * we should use the ndlp from the findnode if it is
667 if ((!ndlp) && rrq->ndlp)
673 if (test_and_clear_bit(xritag, ndlp->active_rrqs_xri_bitmap)) {
676 rrq->rrq_stop_time = 0;
679 mempool_free(rrq, phba->rrq_pool);
683 * lpfc_handle_rrq_active - Checks if RRQ has waithed RATOV.
684 * @phba: Pointer to HBA context object.
686 * This function is called with hbalock held. This function
687 * Checks if stop_time (ratov from setting rrq active) has
688 * been reached, if it has and the send_rrq flag is set then
689 * it will call lpfc_send_rrq. If the send_rrq flag is not set
690 * then it will just call the routine to clear the rrq and
691 * free the rrq resource.
692 * The timer is set to the next rrq that is going to expire before
693 * leaving the routine.
697 lpfc_handle_rrq_active(struct lpfc_hba *phba)
699 struct lpfc_node_rrq *rrq;
700 struct lpfc_node_rrq *nextrrq;
701 unsigned long next_time;
702 unsigned long iflags;
705 spin_lock_irqsave(&phba->hbalock, iflags);
706 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
707 next_time = jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
708 list_for_each_entry_safe(rrq, nextrrq,
709 &phba->active_rrq_list, list) {
710 if (time_after(jiffies, rrq->rrq_stop_time))
711 list_move(&rrq->list, &send_rrq);
712 else if (time_before(rrq->rrq_stop_time, next_time))
713 next_time = rrq->rrq_stop_time;
715 spin_unlock_irqrestore(&phba->hbalock, iflags);
716 if ((!list_empty(&phba->active_rrq_list)) &&
717 (!(phba->pport->load_flag & FC_UNLOADING)))
718 mod_timer(&phba->rrq_tmr, next_time);
719 list_for_each_entry_safe(rrq, nextrrq, &send_rrq, list) {
720 list_del(&rrq->list);
722 /* this call will free the rrq */
723 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
724 else if (lpfc_send_rrq(phba, rrq)) {
725 /* if we send the rrq then the completion handler
726 * will clear the bit in the xribitmap.
728 lpfc_clr_rrq_active(phba, rrq->xritag,
735 * lpfc_get_active_rrq - Get the active RRQ for this exchange.
736 * @vport: Pointer to vport context object.
737 * @xri: The xri used in the exchange.
738 * @did: The targets DID for this exchange.
740 * returns NULL = rrq not found in the phba->active_rrq_list.
741 * rrq = rrq for this xri and target.
743 struct lpfc_node_rrq *
744 lpfc_get_active_rrq(struct lpfc_vport *vport, uint16_t xri, uint32_t did)
746 struct lpfc_hba *phba = vport->phba;
747 struct lpfc_node_rrq *rrq;
748 struct lpfc_node_rrq *nextrrq;
749 unsigned long iflags;
751 if (phba->sli_rev != LPFC_SLI_REV4)
753 spin_lock_irqsave(&phba->hbalock, iflags);
754 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) {
755 if (rrq->vport == vport && rrq->xritag == xri &&
756 rrq->nlp_DID == did){
757 list_del(&rrq->list);
758 spin_unlock_irqrestore(&phba->hbalock, iflags);
762 spin_unlock_irqrestore(&phba->hbalock, iflags);
767 * lpfc_cleanup_vports_rrqs - Remove and clear the active RRQ for this vport.
768 * @vport: Pointer to vport context object.
769 * @ndlp: Pointer to the lpfc_node_list structure.
770 * If ndlp is NULL Remove all active RRQs for this vport from the
771 * phba->active_rrq_list and clear the rrq.
772 * If ndlp is not NULL then only remove rrqs for this vport & this ndlp.
775 lpfc_cleanup_vports_rrqs(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
778 struct lpfc_hba *phba = vport->phba;
779 struct lpfc_node_rrq *rrq;
780 struct lpfc_node_rrq *nextrrq;
781 unsigned long iflags;
784 if (phba->sli_rev != LPFC_SLI_REV4)
787 lpfc_sli4_vport_delete_els_xri_aborted(vport);
788 lpfc_sli4_vport_delete_fcp_xri_aborted(vport);
790 spin_lock_irqsave(&phba->hbalock, iflags);
791 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list)
792 if ((rrq->vport == vport) && (!ndlp || rrq->ndlp == ndlp))
793 list_move(&rrq->list, &rrq_list);
794 spin_unlock_irqrestore(&phba->hbalock, iflags);
796 list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
797 list_del(&rrq->list);
798 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
803 * lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
804 * @phba: Pointer to HBA context object.
805 * @ndlp: Targets nodelist pointer for this exchange.
806 * @xritag the xri in the bitmap to test.
808 * This function is called with hbalock held. This function
809 * returns 0 = rrq not active for this xri
810 * 1 = rrq is valid for this xri.
813 lpfc_test_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
816 lockdep_assert_held(&phba->hbalock);
819 if (!ndlp->active_rrqs_xri_bitmap)
821 if (test_bit(xritag, ndlp->active_rrqs_xri_bitmap))
828 * lpfc_set_rrq_active - set RRQ active bit in xri_bitmap.
829 * @phba: Pointer to HBA context object.
830 * @ndlp: nodelist pointer for this target.
831 * @xritag: xri used in this exchange.
832 * @rxid: Remote Exchange ID.
833 * @send_rrq: Flag used to determine if we should send rrq els cmd.
835 * This function takes the hbalock.
836 * The active bit is always set in the active rrq xri_bitmap even
837 * if there is no slot avaiable for the other rrq information.
839 * returns 0 rrq actived for this xri
840 * < 0 No memory or invalid ndlp.
843 lpfc_set_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
844 uint16_t xritag, uint16_t rxid, uint16_t send_rrq)
846 unsigned long iflags;
847 struct lpfc_node_rrq *rrq;
853 if (!phba->cfg_enable_rrq)
856 spin_lock_irqsave(&phba->hbalock, iflags);
857 if (phba->pport->load_flag & FC_UNLOADING) {
858 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
863 * set the active bit even if there is no mem available.
865 if (NLP_CHK_FREE_REQ(ndlp))
868 if (ndlp->vport && (ndlp->vport->load_flag & FC_UNLOADING))
871 if (!ndlp->active_rrqs_xri_bitmap)
874 if (test_and_set_bit(xritag, ndlp->active_rrqs_xri_bitmap))
877 spin_unlock_irqrestore(&phba->hbalock, iflags);
878 rrq = mempool_alloc(phba->rrq_pool, GFP_KERNEL);
880 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
881 "3155 Unable to allocate RRQ xri:0x%x rxid:0x%x"
882 " DID:0x%x Send:%d\n",
883 xritag, rxid, ndlp->nlp_DID, send_rrq);
886 if (phba->cfg_enable_rrq == 1)
887 rrq->send_rrq = send_rrq;
890 rrq->xritag = xritag;
891 rrq->rrq_stop_time = jiffies +
892 msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
894 rrq->nlp_DID = ndlp->nlp_DID;
895 rrq->vport = ndlp->vport;
897 spin_lock_irqsave(&phba->hbalock, iflags);
898 empty = list_empty(&phba->active_rrq_list);
899 list_add_tail(&rrq->list, &phba->active_rrq_list);
900 phba->hba_flag |= HBA_RRQ_ACTIVE;
902 lpfc_worker_wake_up(phba);
903 spin_unlock_irqrestore(&phba->hbalock, iflags);
906 spin_unlock_irqrestore(&phba->hbalock, iflags);
907 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
908 "2921 Can't set rrq active xri:0x%x rxid:0x%x"
909 " DID:0x%x Send:%d\n",
910 xritag, rxid, ndlp->nlp_DID, send_rrq);
915 * __lpfc_sli_get_els_sglq - Allocates an iocb object from sgl pool
916 * @phba: Pointer to HBA context object.
917 * @piocb: Pointer to the iocbq.
919 * This function is called with the ring lock held. This function
920 * gets a new driver sglq object from the sglq list. If the
921 * list is not empty then it is successful, it returns pointer to the newly
922 * allocated sglq object else it returns NULL.
924 static struct lpfc_sglq *
925 __lpfc_sli_get_els_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
927 struct list_head *lpfc_els_sgl_list = &phba->sli4_hba.lpfc_els_sgl_list;
928 struct lpfc_sglq *sglq = NULL;
929 struct lpfc_sglq *start_sglq = NULL;
930 struct lpfc_scsi_buf *lpfc_cmd;
931 struct lpfc_nodelist *ndlp;
934 lockdep_assert_held(&phba->hbalock);
936 if (piocbq->iocb_flag & LPFC_IO_FCP) {
937 lpfc_cmd = (struct lpfc_scsi_buf *) piocbq->context1;
938 ndlp = lpfc_cmd->rdata->pnode;
939 } else if ((piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) &&
940 !(piocbq->iocb_flag & LPFC_IO_LIBDFC)) {
941 ndlp = piocbq->context_un.ndlp;
942 } else if (piocbq->iocb_flag & LPFC_IO_LIBDFC) {
943 if (piocbq->iocb_flag & LPFC_IO_LOOPBACK)
946 ndlp = piocbq->context_un.ndlp;
948 ndlp = piocbq->context1;
951 spin_lock(&phba->sli4_hba.sgl_list_lock);
952 list_remove_head(lpfc_els_sgl_list, sglq, struct lpfc_sglq, list);
957 if (ndlp && ndlp->active_rrqs_xri_bitmap &&
958 test_bit(sglq->sli4_lxritag,
959 ndlp->active_rrqs_xri_bitmap)) {
960 /* This xri has an rrq outstanding for this DID.
961 * put it back in the list and get another xri.
963 list_add_tail(&sglq->list, lpfc_els_sgl_list);
965 list_remove_head(lpfc_els_sgl_list, sglq,
966 struct lpfc_sglq, list);
967 if (sglq == start_sglq) {
975 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
976 sglq->state = SGL_ALLOCATED;
978 spin_unlock(&phba->sli4_hba.sgl_list_lock);
983 * __lpfc_sli_get_nvmet_sglq - Allocates an iocb object from sgl pool
984 * @phba: Pointer to HBA context object.
985 * @piocb: Pointer to the iocbq.
987 * This function is called with the sgl_list lock held. This function
988 * gets a new driver sglq object from the sglq list. If the
989 * list is not empty then it is successful, it returns pointer to the newly
990 * allocated sglq object else it returns NULL.
993 __lpfc_sli_get_nvmet_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
995 struct list_head *lpfc_nvmet_sgl_list;
996 struct lpfc_sglq *sglq = NULL;
998 lpfc_nvmet_sgl_list = &phba->sli4_hba.lpfc_nvmet_sgl_list;
1000 lockdep_assert_held(&phba->sli4_hba.sgl_list_lock);
1002 list_remove_head(lpfc_nvmet_sgl_list, sglq, struct lpfc_sglq, list);
1005 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
1006 sglq->state = SGL_ALLOCATED;
1011 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
1012 * @phba: Pointer to HBA context object.
1014 * This function is called with no lock held. This function
1015 * allocates a new driver iocb object from the iocb pool. If the
1016 * allocation is successful, it returns pointer to the newly
1017 * allocated iocb object else it returns NULL.
1020 lpfc_sli_get_iocbq(struct lpfc_hba *phba)
1022 struct lpfc_iocbq * iocbq = NULL;
1023 unsigned long iflags;
1025 spin_lock_irqsave(&phba->hbalock, iflags);
1026 iocbq = __lpfc_sli_get_iocbq(phba);
1027 spin_unlock_irqrestore(&phba->hbalock, iflags);
1032 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
1033 * @phba: Pointer to HBA context object.
1034 * @iocbq: Pointer to driver iocb object.
1036 * This function is called with hbalock held to release driver
1037 * iocb object to the iocb pool. The iotag in the iocb object
1038 * does not change for each use of the iocb object. This function
1039 * clears all other fields of the iocb object when it is freed.
1040 * The sqlq structure that holds the xritag and phys and virtual
1041 * mappings for the scatter gather list is retrieved from the
1042 * active array of sglq. The get of the sglq pointer also clears
1043 * the entry in the array. If the status of the IO indiactes that
1044 * this IO was aborted then the sglq entry it put on the
1045 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
1046 * IO has good status or fails for any other reason then the sglq
1047 * entry is added to the free list (lpfc_els_sgl_list).
1050 __lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1052 struct lpfc_sglq *sglq;
1053 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1054 unsigned long iflag = 0;
1055 struct lpfc_sli_ring *pring;
1057 lockdep_assert_held(&phba->hbalock);
1059 if (iocbq->sli4_xritag == NO_XRI)
1062 sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_lxritag);
1066 if (iocbq->iocb_flag & LPFC_IO_NVMET) {
1067 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock,
1069 sglq->state = SGL_FREED;
1071 list_add_tail(&sglq->list,
1072 &phba->sli4_hba.lpfc_nvmet_sgl_list);
1073 spin_unlock_irqrestore(
1074 &phba->sli4_hba.sgl_list_lock, iflag);
1078 pring = phba->sli4_hba.els_wq->pring;
1079 if ((iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) &&
1080 (sglq->state != SGL_XRI_ABORTED)) {
1081 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock,
1083 list_add(&sglq->list,
1084 &phba->sli4_hba.lpfc_abts_els_sgl_list);
1085 spin_unlock_irqrestore(
1086 &phba->sli4_hba.sgl_list_lock, iflag);
1088 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock,
1090 sglq->state = SGL_FREED;
1092 list_add_tail(&sglq->list,
1093 &phba->sli4_hba.lpfc_els_sgl_list);
1094 spin_unlock_irqrestore(
1095 &phba->sli4_hba.sgl_list_lock, iflag);
1097 /* Check if TXQ queue needs to be serviced */
1098 if (!list_empty(&pring->txq))
1099 lpfc_worker_wake_up(phba);
1105 * Clean all volatile data fields, preserve iotag and node struct.
1107 memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1108 iocbq->sli4_lxritag = NO_XRI;
1109 iocbq->sli4_xritag = NO_XRI;
1110 iocbq->iocb_flag &= ~(LPFC_IO_NVME | LPFC_IO_NVMET |
1112 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1117 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
1118 * @phba: Pointer to HBA context object.
1119 * @iocbq: Pointer to driver iocb object.
1121 * This function is called with hbalock held to release driver
1122 * iocb object to the iocb pool. The iotag in the iocb object
1123 * does not change for each use of the iocb object. This function
1124 * clears all other fields of the iocb object when it is freed.
1127 __lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1129 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1131 lockdep_assert_held(&phba->hbalock);
1134 * Clean all volatile data fields, preserve iotag and node struct.
1136 memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1137 iocbq->sli4_xritag = NO_XRI;
1138 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1142 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
1143 * @phba: Pointer to HBA context object.
1144 * @iocbq: Pointer to driver iocb object.
1146 * This function is called with hbalock held to release driver
1147 * iocb object to the iocb pool. The iotag in the iocb object
1148 * does not change for each use of the iocb object. This function
1149 * clears all other fields of the iocb object when it is freed.
1152 __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1154 lockdep_assert_held(&phba->hbalock);
1156 phba->__lpfc_sli_release_iocbq(phba, iocbq);
1161 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
1162 * @phba: Pointer to HBA context object.
1163 * @iocbq: Pointer to driver iocb object.
1165 * This function is called with no lock held to release the iocb to
1169 lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1171 unsigned long iflags;
1174 * Clean all volatile data fields, preserve iotag and node struct.
1176 spin_lock_irqsave(&phba->hbalock, iflags);
1177 __lpfc_sli_release_iocbq(phba, iocbq);
1178 spin_unlock_irqrestore(&phba->hbalock, iflags);
1182 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
1183 * @phba: Pointer to HBA context object.
1184 * @iocblist: List of IOCBs.
1185 * @ulpstatus: ULP status in IOCB command field.
1186 * @ulpWord4: ULP word-4 in IOCB command field.
1188 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
1189 * on the list by invoking the complete callback function associated with the
1190 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
1194 lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
1195 uint32_t ulpstatus, uint32_t ulpWord4)
1197 struct lpfc_iocbq *piocb;
1199 while (!list_empty(iocblist)) {
1200 list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
1201 if (!piocb->iocb_cmpl)
1202 lpfc_sli_release_iocbq(phba, piocb);
1204 piocb->iocb.ulpStatus = ulpstatus;
1205 piocb->iocb.un.ulpWord[4] = ulpWord4;
1206 (piocb->iocb_cmpl) (phba, piocb, piocb);
1213 * lpfc_sli_iocb_cmd_type - Get the iocb type
1214 * @iocb_cmnd: iocb command code.
1216 * This function is called by ring event handler function to get the iocb type.
1217 * This function translates the iocb command to an iocb command type used to
1218 * decide the final disposition of each completed IOCB.
1219 * The function returns
1220 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
1221 * LPFC_SOL_IOCB if it is a solicited iocb completion
1222 * LPFC_ABORT_IOCB if it is an abort iocb
1223 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
1225 * The caller is not required to hold any lock.
1227 static lpfc_iocb_type
1228 lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
1230 lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
1232 if (iocb_cmnd > CMD_MAX_IOCB_CMD)
1235 switch (iocb_cmnd) {
1236 case CMD_XMIT_SEQUENCE_CR:
1237 case CMD_XMIT_SEQUENCE_CX:
1238 case CMD_XMIT_BCAST_CN:
1239 case CMD_XMIT_BCAST_CX:
1240 case CMD_ELS_REQUEST_CR:
1241 case CMD_ELS_REQUEST_CX:
1242 case CMD_CREATE_XRI_CR:
1243 case CMD_CREATE_XRI_CX:
1244 case CMD_GET_RPI_CN:
1245 case CMD_XMIT_ELS_RSP_CX:
1246 case CMD_GET_RPI_CR:
1247 case CMD_FCP_IWRITE_CR:
1248 case CMD_FCP_IWRITE_CX:
1249 case CMD_FCP_IREAD_CR:
1250 case CMD_FCP_IREAD_CX:
1251 case CMD_FCP_ICMND_CR:
1252 case CMD_FCP_ICMND_CX:
1253 case CMD_FCP_TSEND_CX:
1254 case CMD_FCP_TRSP_CX:
1255 case CMD_FCP_TRECEIVE_CX:
1256 case CMD_FCP_AUTO_TRSP_CX:
1257 case CMD_ADAPTER_MSG:
1258 case CMD_ADAPTER_DUMP:
1259 case CMD_XMIT_SEQUENCE64_CR:
1260 case CMD_XMIT_SEQUENCE64_CX:
1261 case CMD_XMIT_BCAST64_CN:
1262 case CMD_XMIT_BCAST64_CX:
1263 case CMD_ELS_REQUEST64_CR:
1264 case CMD_ELS_REQUEST64_CX:
1265 case CMD_FCP_IWRITE64_CR:
1266 case CMD_FCP_IWRITE64_CX:
1267 case CMD_FCP_IREAD64_CR:
1268 case CMD_FCP_IREAD64_CX:
1269 case CMD_FCP_ICMND64_CR:
1270 case CMD_FCP_ICMND64_CX:
1271 case CMD_FCP_TSEND64_CX:
1272 case CMD_FCP_TRSP64_CX:
1273 case CMD_FCP_TRECEIVE64_CX:
1274 case CMD_GEN_REQUEST64_CR:
1275 case CMD_GEN_REQUEST64_CX:
1276 case CMD_XMIT_ELS_RSP64_CX:
1277 case DSSCMD_IWRITE64_CR:
1278 case DSSCMD_IWRITE64_CX:
1279 case DSSCMD_IREAD64_CR:
1280 case DSSCMD_IREAD64_CX:
1281 type = LPFC_SOL_IOCB;
1283 case CMD_ABORT_XRI_CN:
1284 case CMD_ABORT_XRI_CX:
1285 case CMD_CLOSE_XRI_CN:
1286 case CMD_CLOSE_XRI_CX:
1287 case CMD_XRI_ABORTED_CX:
1288 case CMD_ABORT_MXRI64_CN:
1289 case CMD_XMIT_BLS_RSP64_CX:
1290 type = LPFC_ABORT_IOCB;
1292 case CMD_RCV_SEQUENCE_CX:
1293 case CMD_RCV_ELS_REQ_CX:
1294 case CMD_RCV_SEQUENCE64_CX:
1295 case CMD_RCV_ELS_REQ64_CX:
1296 case CMD_ASYNC_STATUS:
1297 case CMD_IOCB_RCV_SEQ64_CX:
1298 case CMD_IOCB_RCV_ELS64_CX:
1299 case CMD_IOCB_RCV_CONT64_CX:
1300 case CMD_IOCB_RET_XRI64_CX:
1301 type = LPFC_UNSOL_IOCB;
1303 case CMD_IOCB_XMIT_MSEQ64_CR:
1304 case CMD_IOCB_XMIT_MSEQ64_CX:
1305 case CMD_IOCB_RCV_SEQ_LIST64_CX:
1306 case CMD_IOCB_RCV_ELS_LIST64_CX:
1307 case CMD_IOCB_CLOSE_EXTENDED_CN:
1308 case CMD_IOCB_ABORT_EXTENDED_CN:
1309 case CMD_IOCB_RET_HBQE64_CN:
1310 case CMD_IOCB_FCP_IBIDIR64_CR:
1311 case CMD_IOCB_FCP_IBIDIR64_CX:
1312 case CMD_IOCB_FCP_ITASKMGT64_CX:
1313 case CMD_IOCB_LOGENTRY_CN:
1314 case CMD_IOCB_LOGENTRY_ASYNC_CN:
1315 printk("%s - Unhandled SLI-3 Command x%x\n",
1316 __func__, iocb_cmnd);
1317 type = LPFC_UNKNOWN_IOCB;
1320 type = LPFC_UNKNOWN_IOCB;
1328 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
1329 * @phba: Pointer to HBA context object.
1331 * This function is called from SLI initialization code
1332 * to configure every ring of the HBA's SLI interface. The
1333 * caller is not required to hold any lock. This function issues
1334 * a config_ring mailbox command for each ring.
1335 * This function returns zero if successful else returns a negative
1339 lpfc_sli_ring_map(struct lpfc_hba *phba)
1341 struct lpfc_sli *psli = &phba->sli;
1346 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1350 phba->link_state = LPFC_INIT_MBX_CMDS;
1351 for (i = 0; i < psli->num_rings; i++) {
1352 lpfc_config_ring(phba, i, pmb);
1353 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
1354 if (rc != MBX_SUCCESS) {
1355 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1356 "0446 Adapter failed to init (%d), "
1357 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
1359 rc, pmbox->mbxCommand,
1360 pmbox->mbxStatus, i);
1361 phba->link_state = LPFC_HBA_ERROR;
1366 mempool_free(pmb, phba->mbox_mem_pool);
1371 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
1372 * @phba: Pointer to HBA context object.
1373 * @pring: Pointer to driver SLI ring object.
1374 * @piocb: Pointer to the driver iocb object.
1376 * This function is called with hbalock held. The function adds the
1377 * new iocb to txcmplq of the given ring. This function always returns
1378 * 0. If this function is called for ELS ring, this function checks if
1379 * there is a vport associated with the ELS command. This function also
1380 * starts els_tmofunc timer if this is an ELS command.
1383 lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1384 struct lpfc_iocbq *piocb)
1386 lockdep_assert_held(&phba->hbalock);
1390 list_add_tail(&piocb->list, &pring->txcmplq);
1391 piocb->iocb_flag |= LPFC_IO_ON_TXCMPLQ;
1393 if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
1394 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
1395 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
1396 BUG_ON(!piocb->vport);
1397 if (!(piocb->vport->load_flag & FC_UNLOADING))
1398 mod_timer(&piocb->vport->els_tmofunc,
1400 msecs_to_jiffies(1000 * (phba->fc_ratov << 1)));
1407 * lpfc_sli_ringtx_get - Get first element of the txq
1408 * @phba: Pointer to HBA context object.
1409 * @pring: Pointer to driver SLI ring object.
1411 * This function is called with hbalock held to get next
1412 * iocb in txq of the given ring. If there is any iocb in
1413 * the txq, the function returns first iocb in the list after
1414 * removing the iocb from the list, else it returns NULL.
1417 lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1419 struct lpfc_iocbq *cmd_iocb;
1421 lockdep_assert_held(&phba->hbalock);
1423 list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
1428 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
1429 * @phba: Pointer to HBA context object.
1430 * @pring: Pointer to driver SLI ring object.
1432 * This function is called with hbalock held and the caller must post the
1433 * iocb without releasing the lock. If the caller releases the lock,
1434 * iocb slot returned by the function is not guaranteed to be available.
1435 * The function returns pointer to the next available iocb slot if there
1436 * is available slot in the ring, else it returns NULL.
1437 * If the get index of the ring is ahead of the put index, the function
1438 * will post an error attention event to the worker thread to take the
1439 * HBA to offline state.
1442 lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1444 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
1445 uint32_t max_cmd_idx = pring->sli.sli3.numCiocb;
1447 lockdep_assert_held(&phba->hbalock);
1449 if ((pring->sli.sli3.next_cmdidx == pring->sli.sli3.cmdidx) &&
1450 (++pring->sli.sli3.next_cmdidx >= max_cmd_idx))
1451 pring->sli.sli3.next_cmdidx = 0;
1453 if (unlikely(pring->sli.sli3.local_getidx ==
1454 pring->sli.sli3.next_cmdidx)) {
1456 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
1458 if (unlikely(pring->sli.sli3.local_getidx >= max_cmd_idx)) {
1459 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1460 "0315 Ring %d issue: portCmdGet %d "
1461 "is bigger than cmd ring %d\n",
1463 pring->sli.sli3.local_getidx,
1466 phba->link_state = LPFC_HBA_ERROR;
1468 * All error attention handlers are posted to
1471 phba->work_ha |= HA_ERATT;
1472 phba->work_hs = HS_FFER3;
1474 lpfc_worker_wake_up(phba);
1479 if (pring->sli.sli3.local_getidx == pring->sli.sli3.next_cmdidx)
1483 return lpfc_cmd_iocb(phba, pring);
1487 * lpfc_sli_next_iotag - Get an iotag for the iocb
1488 * @phba: Pointer to HBA context object.
1489 * @iocbq: Pointer to driver iocb object.
1491 * This function gets an iotag for the iocb. If there is no unused iotag and
1492 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
1493 * array and assigns a new iotag.
1494 * The function returns the allocated iotag if successful, else returns zero.
1495 * Zero is not a valid iotag.
1496 * The caller is not required to hold any lock.
1499 lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1501 struct lpfc_iocbq **new_arr;
1502 struct lpfc_iocbq **old_arr;
1504 struct lpfc_sli *psli = &phba->sli;
1507 spin_lock_irq(&phba->hbalock);
1508 iotag = psli->last_iotag;
1509 if(++iotag < psli->iocbq_lookup_len) {
1510 psli->last_iotag = iotag;
1511 psli->iocbq_lookup[iotag] = iocbq;
1512 spin_unlock_irq(&phba->hbalock);
1513 iocbq->iotag = iotag;
1515 } else if (psli->iocbq_lookup_len < (0xffff
1516 - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
1517 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
1518 spin_unlock_irq(&phba->hbalock);
1519 new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *),
1522 spin_lock_irq(&phba->hbalock);
1523 old_arr = psli->iocbq_lookup;
1524 if (new_len <= psli->iocbq_lookup_len) {
1525 /* highly unprobable case */
1527 iotag = psli->last_iotag;
1528 if(++iotag < psli->iocbq_lookup_len) {
1529 psli->last_iotag = iotag;
1530 psli->iocbq_lookup[iotag] = iocbq;
1531 spin_unlock_irq(&phba->hbalock);
1532 iocbq->iotag = iotag;
1535 spin_unlock_irq(&phba->hbalock);
1538 if (psli->iocbq_lookup)
1539 memcpy(new_arr, old_arr,
1540 ((psli->last_iotag + 1) *
1541 sizeof (struct lpfc_iocbq *)));
1542 psli->iocbq_lookup = new_arr;
1543 psli->iocbq_lookup_len = new_len;
1544 psli->last_iotag = iotag;
1545 psli->iocbq_lookup[iotag] = iocbq;
1546 spin_unlock_irq(&phba->hbalock);
1547 iocbq->iotag = iotag;
1552 spin_unlock_irq(&phba->hbalock);
1554 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
1555 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1562 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
1563 * @phba: Pointer to HBA context object.
1564 * @pring: Pointer to driver SLI ring object.
1565 * @iocb: Pointer to iocb slot in the ring.
1566 * @nextiocb: Pointer to driver iocb object which need to be
1567 * posted to firmware.
1569 * This function is called with hbalock held to post a new iocb to
1570 * the firmware. This function copies the new iocb to ring iocb slot and
1571 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1572 * a completion call back for this iocb else the function will free the
1576 lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1577 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
1579 lockdep_assert_held(&phba->hbalock);
1583 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
1586 if (pring->ringno == LPFC_ELS_RING) {
1587 lpfc_debugfs_slow_ring_trc(phba,
1588 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1589 *(((uint32_t *) &nextiocb->iocb) + 4),
1590 *(((uint32_t *) &nextiocb->iocb) + 6),
1591 *(((uint32_t *) &nextiocb->iocb) + 7));
1595 * Issue iocb command to adapter
1597 lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
1599 pring->stats.iocb_cmd++;
1602 * If there is no completion routine to call, we can release the
1603 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1604 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1606 if (nextiocb->iocb_cmpl)
1607 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
1609 __lpfc_sli_release_iocbq(phba, nextiocb);
1612 * Let the HBA know what IOCB slot will be the next one the
1613 * driver will put a command into.
1615 pring->sli.sli3.cmdidx = pring->sli.sli3.next_cmdidx;
1616 writel(pring->sli.sli3.cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
1620 * lpfc_sli_update_full_ring - Update the chip attention register
1621 * @phba: Pointer to HBA context object.
1622 * @pring: Pointer to driver SLI ring object.
1624 * The caller is not required to hold any lock for calling this function.
1625 * This function updates the chip attention bits for the ring to inform firmware
1626 * that there are pending work to be done for this ring and requests an
1627 * interrupt when there is space available in the ring. This function is
1628 * called when the driver is unable to post more iocbs to the ring due
1629 * to unavailability of space in the ring.
1632 lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1634 int ringno = pring->ringno;
1636 pring->flag |= LPFC_CALL_RING_AVAILABLE;
1641 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1642 * The HBA will tell us when an IOCB entry is available.
1644 writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
1645 readl(phba->CAregaddr); /* flush */
1647 pring->stats.iocb_cmd_full++;
1651 * lpfc_sli_update_ring - Update chip attention register
1652 * @phba: Pointer to HBA context object.
1653 * @pring: Pointer to driver SLI ring object.
1655 * This function updates the chip attention register bit for the
1656 * given ring to inform HBA that there is more work to be done
1657 * in this ring. The caller is not required to hold any lock.
1660 lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1662 int ringno = pring->ringno;
1665 * Tell the HBA that there is work to do in this ring.
1667 if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
1669 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
1670 readl(phba->CAregaddr); /* flush */
1675 * lpfc_sli_resume_iocb - Process iocbs in the txq
1676 * @phba: Pointer to HBA context object.
1677 * @pring: Pointer to driver SLI ring object.
1679 * This function is called with hbalock held to post pending iocbs
1680 * in the txq to the firmware. This function is called when driver
1681 * detects space available in the ring.
1684 lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1687 struct lpfc_iocbq *nextiocb;
1689 lockdep_assert_held(&phba->hbalock);
1693 * (a) there is anything on the txq to send
1695 * (c) link attention events can be processed (fcp ring only)
1696 * (d) IOCB processing is not blocked by the outstanding mbox command.
1699 if (lpfc_is_link_up(phba) &&
1700 (!list_empty(&pring->txq)) &&
1701 (pring->ringno != LPFC_FCP_RING ||
1702 phba->sli.sli_flag & LPFC_PROCESS_LA)) {
1704 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
1705 (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
1706 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
1709 lpfc_sli_update_ring(phba, pring);
1711 lpfc_sli_update_full_ring(phba, pring);
1718 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
1719 * @phba: Pointer to HBA context object.
1720 * @hbqno: HBQ number.
1722 * This function is called with hbalock held to get the next
1723 * available slot for the given HBQ. If there is free slot
1724 * available for the HBQ it will return pointer to the next available
1725 * HBQ entry else it will return NULL.
1727 static struct lpfc_hbq_entry *
1728 lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
1730 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1732 lockdep_assert_held(&phba->hbalock);
1734 if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
1735 ++hbqp->next_hbqPutIdx >= hbqp->entry_count)
1736 hbqp->next_hbqPutIdx = 0;
1738 if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
1739 uint32_t raw_index = phba->hbq_get[hbqno];
1740 uint32_t getidx = le32_to_cpu(raw_index);
1742 hbqp->local_hbqGetIdx = getidx;
1744 if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
1745 lpfc_printf_log(phba, KERN_ERR,
1746 LOG_SLI | LOG_VPORT,
1747 "1802 HBQ %d: local_hbqGetIdx "
1748 "%u is > than hbqp->entry_count %u\n",
1749 hbqno, hbqp->local_hbqGetIdx,
1752 phba->link_state = LPFC_HBA_ERROR;
1756 if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
1760 return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
1765 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
1766 * @phba: Pointer to HBA context object.
1768 * This function is called with no lock held to free all the
1769 * hbq buffers while uninitializing the SLI interface. It also
1770 * frees the HBQ buffers returned by the firmware but not yet
1771 * processed by the upper layers.
1774 lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
1776 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
1777 struct hbq_dmabuf *hbq_buf;
1778 unsigned long flags;
1781 hbq_count = lpfc_sli_hbq_count();
1782 /* Return all memory used by all HBQs */
1783 spin_lock_irqsave(&phba->hbalock, flags);
1784 for (i = 0; i < hbq_count; ++i) {
1785 list_for_each_entry_safe(dmabuf, next_dmabuf,
1786 &phba->hbqs[i].hbq_buffer_list, list) {
1787 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1788 list_del(&hbq_buf->dbuf.list);
1789 (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
1791 phba->hbqs[i].buffer_count = 0;
1794 /* Mark the HBQs not in use */
1795 phba->hbq_in_use = 0;
1796 spin_unlock_irqrestore(&phba->hbalock, flags);
1800 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
1801 * @phba: Pointer to HBA context object.
1802 * @hbqno: HBQ number.
1803 * @hbq_buf: Pointer to HBQ buffer.
1805 * This function is called with the hbalock held to post a
1806 * hbq buffer to the firmware. If the function finds an empty
1807 * slot in the HBQ, it will post the buffer. The function will return
1808 * pointer to the hbq entry if it successfully post the buffer
1809 * else it will return NULL.
1812 lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
1813 struct hbq_dmabuf *hbq_buf)
1815 lockdep_assert_held(&phba->hbalock);
1816 return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
1820 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
1821 * @phba: Pointer to HBA context object.
1822 * @hbqno: HBQ number.
1823 * @hbq_buf: Pointer to HBQ buffer.
1825 * This function is called with the hbalock held to post a hbq buffer to the
1826 * firmware. If the function finds an empty slot in the HBQ, it will post the
1827 * buffer and place it on the hbq_buffer_list. The function will return zero if
1828 * it successfully post the buffer else it will return an error.
1831 lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
1832 struct hbq_dmabuf *hbq_buf)
1834 struct lpfc_hbq_entry *hbqe;
1835 dma_addr_t physaddr = hbq_buf->dbuf.phys;
1837 lockdep_assert_held(&phba->hbalock);
1838 /* Get next HBQ entry slot to use */
1839 hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
1841 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1843 hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
1844 hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
1845 hbqe->bde.tus.f.bdeSize = hbq_buf->total_size;
1846 hbqe->bde.tus.f.bdeFlags = 0;
1847 hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
1848 hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
1850 hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
1851 writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
1853 readl(phba->hbq_put + hbqno);
1854 list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
1861 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
1862 * @phba: Pointer to HBA context object.
1863 * @hbqno: HBQ number.
1864 * @hbq_buf: Pointer to HBQ buffer.
1866 * This function is called with the hbalock held to post an RQE to the SLI4
1867 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
1868 * the hbq_buffer_list and return zero, otherwise it will return an error.
1871 lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
1872 struct hbq_dmabuf *hbq_buf)
1875 struct lpfc_rqe hrqe;
1876 struct lpfc_rqe drqe;
1877 struct lpfc_queue *hrq;
1878 struct lpfc_queue *drq;
1880 if (hbqno != LPFC_ELS_HBQ)
1882 hrq = phba->sli4_hba.hdr_rq;
1883 drq = phba->sli4_hba.dat_rq;
1885 lockdep_assert_held(&phba->hbalock);
1886 hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
1887 hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
1888 drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
1889 drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
1890 rc = lpfc_sli4_rq_put(hrq, drq, &hrqe, &drqe);
1893 hbq_buf->tag = (rc | (hbqno << 16));
1894 list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
1898 /* HBQ for ELS and CT traffic. */
1899 static struct lpfc_hbq_init lpfc_els_hbq = {
1904 .ring_mask = (1 << LPFC_ELS_RING),
1911 struct lpfc_hbq_init *lpfc_hbq_defs[] = {
1916 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
1917 * @phba: Pointer to HBA context object.
1918 * @hbqno: HBQ number.
1919 * @count: Number of HBQ buffers to be posted.
1921 * This function is called with no lock held to post more hbq buffers to the
1922 * given HBQ. The function returns the number of HBQ buffers successfully
1926 lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
1928 uint32_t i, posted = 0;
1929 unsigned long flags;
1930 struct hbq_dmabuf *hbq_buffer;
1931 LIST_HEAD(hbq_buf_list);
1932 if (!phba->hbqs[hbqno].hbq_alloc_buffer)
1935 if ((phba->hbqs[hbqno].buffer_count + count) >
1936 lpfc_hbq_defs[hbqno]->entry_count)
1937 count = lpfc_hbq_defs[hbqno]->entry_count -
1938 phba->hbqs[hbqno].buffer_count;
1941 /* Allocate HBQ entries */
1942 for (i = 0; i < count; i++) {
1943 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
1946 list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
1948 /* Check whether HBQ is still in use */
1949 spin_lock_irqsave(&phba->hbalock, flags);
1950 if (!phba->hbq_in_use)
1952 while (!list_empty(&hbq_buf_list)) {
1953 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1955 hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
1957 if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
1958 phba->hbqs[hbqno].buffer_count++;
1961 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1963 spin_unlock_irqrestore(&phba->hbalock, flags);
1966 spin_unlock_irqrestore(&phba->hbalock, flags);
1967 while (!list_empty(&hbq_buf_list)) {
1968 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1970 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1976 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
1977 * @phba: Pointer to HBA context object.
1980 * This function posts more buffers to the HBQ. This function
1981 * is called with no lock held. The function returns the number of HBQ entries
1982 * successfully allocated.
1985 lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
1987 if (phba->sli_rev == LPFC_SLI_REV4)
1990 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1991 lpfc_hbq_defs[qno]->add_count);
1995 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
1996 * @phba: Pointer to HBA context object.
1997 * @qno: HBQ queue number.
1999 * This function is called from SLI initialization code path with
2000 * no lock held to post initial HBQ buffers to firmware. The
2001 * function returns the number of HBQ entries successfully allocated.
2004 lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
2006 if (phba->sli_rev == LPFC_SLI_REV4)
2007 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
2008 lpfc_hbq_defs[qno]->entry_count);
2010 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
2011 lpfc_hbq_defs[qno]->init_count);
2015 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
2016 * @phba: Pointer to HBA context object.
2017 * @hbqno: HBQ number.
2019 * This function removes the first hbq buffer on an hbq list and returns a
2020 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
2022 static struct hbq_dmabuf *
2023 lpfc_sli_hbqbuf_get(struct list_head *rb_list)
2025 struct lpfc_dmabuf *d_buf;
2027 list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
2030 return container_of(d_buf, struct hbq_dmabuf, dbuf);
2034 * lpfc_sli_rqbuf_get - Remove the first dma buffer off of an RQ list
2035 * @phba: Pointer to HBA context object.
2036 * @hbqno: HBQ number.
2038 * This function removes the first RQ buffer on an RQ buffer list and returns a
2039 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
2041 static struct rqb_dmabuf *
2042 lpfc_sli_rqbuf_get(struct lpfc_hba *phba, struct lpfc_queue *hrq)
2044 struct lpfc_dmabuf *h_buf;
2045 struct lpfc_rqb *rqbp;
2048 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
2049 struct lpfc_dmabuf, list);
2052 rqbp->buffer_count--;
2053 return container_of(h_buf, struct rqb_dmabuf, hbuf);
2057 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
2058 * @phba: Pointer to HBA context object.
2059 * @tag: Tag of the hbq buffer.
2061 * This function searches for the hbq buffer associated with the given tag in
2062 * the hbq buffer list. If it finds the hbq buffer, it returns the hbq_buffer
2063 * otherwise it returns NULL.
2065 static struct hbq_dmabuf *
2066 lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
2068 struct lpfc_dmabuf *d_buf;
2069 struct hbq_dmabuf *hbq_buf;
2073 if (hbqno >= LPFC_MAX_HBQS)
2076 spin_lock_irq(&phba->hbalock);
2077 list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
2078 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
2079 if (hbq_buf->tag == tag) {
2080 spin_unlock_irq(&phba->hbalock);
2084 spin_unlock_irq(&phba->hbalock);
2085 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT,
2086 "1803 Bad hbq tag. Data: x%x x%x\n",
2087 tag, phba->hbqs[tag >> 16].buffer_count);
2092 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
2093 * @phba: Pointer to HBA context object.
2094 * @hbq_buffer: Pointer to HBQ buffer.
2096 * This function is called with hbalock. This function gives back
2097 * the hbq buffer to firmware. If the HBQ does not have space to
2098 * post the buffer, it will free the buffer.
2101 lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
2106 hbqno = hbq_buffer->tag >> 16;
2107 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
2108 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
2113 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
2114 * @mbxCommand: mailbox command code.
2116 * This function is called by the mailbox event handler function to verify
2117 * that the completed mailbox command is a legitimate mailbox command. If the
2118 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
2119 * and the mailbox event handler will take the HBA offline.
2122 lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
2126 switch (mbxCommand) {
2130 case MBX_WRITE_VPARMS:
2131 case MBX_RUN_BIU_DIAG:
2134 case MBX_CONFIG_LINK:
2135 case MBX_CONFIG_RING:
2136 case MBX_RESET_RING:
2137 case MBX_READ_CONFIG:
2138 case MBX_READ_RCONFIG:
2139 case MBX_READ_SPARM:
2140 case MBX_READ_STATUS:
2144 case MBX_READ_LNK_STAT:
2146 case MBX_UNREG_LOGIN:
2148 case MBX_DUMP_MEMORY:
2149 case MBX_DUMP_CONTEXT:
2152 case MBX_UPDATE_CFG:
2154 case MBX_DEL_LD_ENTRY:
2155 case MBX_RUN_PROGRAM:
2157 case MBX_SET_VARIABLE:
2158 case MBX_UNREG_D_ID:
2159 case MBX_KILL_BOARD:
2160 case MBX_CONFIG_FARP:
2163 case MBX_RUN_BIU_DIAG64:
2164 case MBX_CONFIG_PORT:
2165 case MBX_READ_SPARM64:
2166 case MBX_READ_RPI64:
2167 case MBX_REG_LOGIN64:
2168 case MBX_READ_TOPOLOGY:
2171 case MBX_LOAD_EXP_ROM:
2172 case MBX_ASYNCEVT_ENABLE:
2176 case MBX_PORT_CAPABILITIES:
2177 case MBX_PORT_IOV_CONTROL:
2178 case MBX_SLI4_CONFIG:
2179 case MBX_SLI4_REQ_FTRS:
2181 case MBX_UNREG_FCFI:
2186 case MBX_RESUME_RPI:
2187 case MBX_READ_EVENT_LOG_STATUS:
2188 case MBX_READ_EVENT_LOG:
2189 case MBX_SECURITY_MGMT:
2191 case MBX_ACCESS_VDATA:
2202 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
2203 * @phba: Pointer to HBA context object.
2204 * @pmboxq: Pointer to mailbox command.
2206 * This is completion handler function for mailbox commands issued from
2207 * lpfc_sli_issue_mbox_wait function. This function is called by the
2208 * mailbox event handler function with no lock held. This function
2209 * will wake up thread waiting on the wait queue pointed by context1
2213 lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
2215 wait_queue_head_t *pdone_q;
2216 unsigned long drvr_flag;
2219 * If pdone_q is empty, the driver thread gave up waiting and
2220 * continued running.
2222 pmboxq->mbox_flag |= LPFC_MBX_WAKE;
2223 spin_lock_irqsave(&phba->hbalock, drvr_flag);
2224 pdone_q = (wait_queue_head_t *) pmboxq->context1;
2226 wake_up_interruptible(pdone_q);
2227 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
2233 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
2234 * @phba: Pointer to HBA context object.
2235 * @pmb: Pointer to mailbox object.
2237 * This function is the default mailbox completion handler. It
2238 * frees the memory resources associated with the completed mailbox
2239 * command. If the completed command is a REG_LOGIN mailbox command,
2240 * this function will issue a UREG_LOGIN to re-claim the RPI.
2243 lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2245 struct lpfc_vport *vport = pmb->vport;
2246 struct lpfc_dmabuf *mp;
2247 struct lpfc_nodelist *ndlp;
2248 struct Scsi_Host *shost;
2252 mp = (struct lpfc_dmabuf *) (pmb->context1);
2255 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2260 * If a REG_LOGIN succeeded after node is destroyed or node
2261 * is in re-discovery driver need to cleanup the RPI.
2263 if (!(phba->pport->load_flag & FC_UNLOADING) &&
2264 pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
2265 !pmb->u.mb.mbxStatus) {
2266 rpi = pmb->u.mb.un.varWords[0];
2267 vpi = pmb->u.mb.un.varRegLogin.vpi;
2268 lpfc_unreg_login(phba, vpi, rpi, pmb);
2270 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2271 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2272 if (rc != MBX_NOT_FINISHED)
2276 if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) &&
2277 !(phba->pport->load_flag & FC_UNLOADING) &&
2278 !pmb->u.mb.mbxStatus) {
2279 shost = lpfc_shost_from_vport(vport);
2280 spin_lock_irq(shost->host_lock);
2281 vport->vpi_state |= LPFC_VPI_REGISTERED;
2282 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
2283 spin_unlock_irq(shost->host_lock);
2286 if (pmb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
2287 ndlp = (struct lpfc_nodelist *)pmb->context2;
2289 pmb->context2 = NULL;
2292 /* Check security permission status on INIT_LINK mailbox command */
2293 if ((pmb->u.mb.mbxCommand == MBX_INIT_LINK) &&
2294 (pmb->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
2295 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2296 "2860 SLI authentication is required "
2297 "for INIT_LINK but has not done yet\n");
2299 if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
2300 lpfc_sli4_mbox_cmd_free(phba, pmb);
2302 mempool_free(pmb, phba->mbox_mem_pool);
2305 * lpfc_sli4_unreg_rpi_cmpl_clr - mailbox completion handler
2306 * @phba: Pointer to HBA context object.
2307 * @pmb: Pointer to mailbox object.
2309 * This function is the unreg rpi mailbox completion handler. It
2310 * frees the memory resources associated with the completed mailbox
2311 * command. An additional refrenece is put on the ndlp to prevent
2312 * lpfc_nlp_release from freeing the rpi bit in the bitmask before
2313 * the unreg mailbox command completes, this routine puts the
2318 lpfc_sli4_unreg_rpi_cmpl_clr(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2320 struct lpfc_vport *vport = pmb->vport;
2321 struct lpfc_nodelist *ndlp;
2323 ndlp = pmb->context1;
2324 if (pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) {
2325 if (phba->sli_rev == LPFC_SLI_REV4 &&
2326 (bf_get(lpfc_sli_intf_if_type,
2327 &phba->sli4_hba.sli_intf) ==
2328 LPFC_SLI_INTF_IF_TYPE_2)) {
2330 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
2331 "0010 UNREG_LOGIN vpi:%x "
2332 "rpi:%x DID:%x map:%x %p\n",
2333 vport->vpi, ndlp->nlp_rpi,
2335 ndlp->nlp_usg_map, ndlp);
2336 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
2342 mempool_free(pmb, phba->mbox_mem_pool);
2346 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
2347 * @phba: Pointer to HBA context object.
2349 * This function is called with no lock held. This function processes all
2350 * the completed mailbox commands and gives it to upper layers. The interrupt
2351 * service routine processes mailbox completion interrupt and adds completed
2352 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
2353 * Worker thread call lpfc_sli_handle_mb_event, which will return the
2354 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
2355 * function returns the mailbox commands to the upper layer by calling the
2356 * completion handler function of each mailbox.
2359 lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
2366 phba->sli.slistat.mbox_event++;
2368 /* Get all completed mailboxe buffers into the cmplq */
2369 spin_lock_irq(&phba->hbalock);
2370 list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
2371 spin_unlock_irq(&phba->hbalock);
2373 /* Get a Mailbox buffer to setup mailbox commands for callback */
2375 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
2381 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
2383 lpfc_debugfs_disc_trc(pmb->vport,
2384 LPFC_DISC_TRC_MBOX_VPORT,
2385 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
2386 (uint32_t)pmbox->mbxCommand,
2387 pmbox->un.varWords[0],
2388 pmbox->un.varWords[1]);
2391 lpfc_debugfs_disc_trc(phba->pport,
2393 "MBOX cmpl: cmd:x%x mb:x%x x%x",
2394 (uint32_t)pmbox->mbxCommand,
2395 pmbox->un.varWords[0],
2396 pmbox->un.varWords[1]);
2401 * It is a fatal error if unknown mbox command completion.
2403 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
2405 /* Unknown mailbox command compl */
2406 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2407 "(%d):0323 Unknown Mailbox command "
2408 "x%x (x%x/x%x) Cmpl\n",
2409 pmb->vport ? pmb->vport->vpi : 0,
2411 lpfc_sli_config_mbox_subsys_get(phba,
2413 lpfc_sli_config_mbox_opcode_get(phba,
2415 phba->link_state = LPFC_HBA_ERROR;
2416 phba->work_hs = HS_FFER3;
2417 lpfc_handle_eratt(phba);
2421 if (pmbox->mbxStatus) {
2422 phba->sli.slistat.mbox_stat_err++;
2423 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
2424 /* Mbox cmd cmpl error - RETRYing */
2425 lpfc_printf_log(phba, KERN_INFO,
2427 "(%d):0305 Mbox cmd cmpl "
2428 "error - RETRYing Data: x%x "
2429 "(x%x/x%x) x%x x%x x%x\n",
2430 pmb->vport ? pmb->vport->vpi : 0,
2432 lpfc_sli_config_mbox_subsys_get(phba,
2434 lpfc_sli_config_mbox_opcode_get(phba,
2437 pmbox->un.varWords[0],
2438 pmb->vport->port_state);
2439 pmbox->mbxStatus = 0;
2440 pmbox->mbxOwner = OWN_HOST;
2441 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2442 if (rc != MBX_NOT_FINISHED)
2447 /* Mailbox cmd <cmd> Cmpl <cmpl> */
2448 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
2449 "(%d):0307 Mailbox cmd x%x (x%x/x%x) Cmpl x%p "
2450 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
2452 pmb->vport ? pmb->vport->vpi : 0,
2454 lpfc_sli_config_mbox_subsys_get(phba, pmb),
2455 lpfc_sli_config_mbox_opcode_get(phba, pmb),
2457 *((uint32_t *) pmbox),
2458 pmbox->un.varWords[0],
2459 pmbox->un.varWords[1],
2460 pmbox->un.varWords[2],
2461 pmbox->un.varWords[3],
2462 pmbox->un.varWords[4],
2463 pmbox->un.varWords[5],
2464 pmbox->un.varWords[6],
2465 pmbox->un.varWords[7],
2466 pmbox->un.varWords[8],
2467 pmbox->un.varWords[9],
2468 pmbox->un.varWords[10]);
2471 pmb->mbox_cmpl(phba,pmb);
2477 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
2478 * @phba: Pointer to HBA context object.
2479 * @pring: Pointer to driver SLI ring object.
2482 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
2483 * is set in the tag the buffer is posted for a particular exchange,
2484 * the function will return the buffer without replacing the buffer.
2485 * If the buffer is for unsolicited ELS or CT traffic, this function
2486 * returns the buffer and also posts another buffer to the firmware.
2488 static struct lpfc_dmabuf *
2489 lpfc_sli_get_buff(struct lpfc_hba *phba,
2490 struct lpfc_sli_ring *pring,
2493 struct hbq_dmabuf *hbq_entry;
2495 if (tag & QUE_BUFTAG_BIT)
2496 return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
2497 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
2500 return &hbq_entry->dbuf;
2504 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
2505 * @phba: Pointer to HBA context object.
2506 * @pring: Pointer to driver SLI ring object.
2507 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
2508 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
2509 * @fch_type: the type for the first frame of the sequence.
2511 * This function is called with no lock held. This function uses the r_ctl and
2512 * type of the received sequence to find the correct callback function to call
2513 * to process the sequence.
2516 lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2517 struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
2524 lpfc_nvmet_unsol_ls_event(phba, pring, saveq);
2530 /* unSolicited Responses */
2531 if (pring->prt[0].profile) {
2532 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
2533 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
2537 /* We must search, based on rctl / type
2538 for the right routine */
2539 for (i = 0; i < pring->num_mask; i++) {
2540 if ((pring->prt[i].rctl == fch_r_ctl) &&
2541 (pring->prt[i].type == fch_type)) {
2542 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
2543 (pring->prt[i].lpfc_sli_rcv_unsol_event)
2544 (phba, pring, saveq);
2552 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
2553 * @phba: Pointer to HBA context object.
2554 * @pring: Pointer to driver SLI ring object.
2555 * @saveq: Pointer to the unsolicited iocb.
2557 * This function is called with no lock held by the ring event handler
2558 * when there is an unsolicited iocb posted to the response ring by the
2559 * firmware. This function gets the buffer associated with the iocbs
2560 * and calls the event handler for the ring. This function handles both
2561 * qring buffers and hbq buffers.
2562 * When the function returns 1 the caller can free the iocb object otherwise
2563 * upper layer functions will free the iocb objects.
2566 lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2567 struct lpfc_iocbq *saveq)
2571 uint32_t Rctl, Type;
2572 struct lpfc_iocbq *iocbq;
2573 struct lpfc_dmabuf *dmzbuf;
2575 irsp = &(saveq->iocb);
2577 if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
2578 if (pring->lpfc_sli_rcv_async_status)
2579 pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
2581 lpfc_printf_log(phba,
2584 "0316 Ring %d handler: unexpected "
2585 "ASYNC_STATUS iocb received evt_code "
2588 irsp->un.asyncstat.evt_code);
2592 if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
2593 (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
2594 if (irsp->ulpBdeCount > 0) {
2595 dmzbuf = lpfc_sli_get_buff(phba, pring,
2596 irsp->un.ulpWord[3]);
2597 lpfc_in_buf_free(phba, dmzbuf);
2600 if (irsp->ulpBdeCount > 1) {
2601 dmzbuf = lpfc_sli_get_buff(phba, pring,
2602 irsp->unsli3.sli3Words[3]);
2603 lpfc_in_buf_free(phba, dmzbuf);
2606 if (irsp->ulpBdeCount > 2) {
2607 dmzbuf = lpfc_sli_get_buff(phba, pring,
2608 irsp->unsli3.sli3Words[7]);
2609 lpfc_in_buf_free(phba, dmzbuf);
2615 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
2616 if (irsp->ulpBdeCount != 0) {
2617 saveq->context2 = lpfc_sli_get_buff(phba, pring,
2618 irsp->un.ulpWord[3]);
2619 if (!saveq->context2)
2620 lpfc_printf_log(phba,
2623 "0341 Ring %d Cannot find buffer for "
2624 "an unsolicited iocb. tag 0x%x\n",
2626 irsp->un.ulpWord[3]);
2628 if (irsp->ulpBdeCount == 2) {
2629 saveq->context3 = lpfc_sli_get_buff(phba, pring,
2630 irsp->unsli3.sli3Words[7]);
2631 if (!saveq->context3)
2632 lpfc_printf_log(phba,
2635 "0342 Ring %d Cannot find buffer for an"
2636 " unsolicited iocb. tag 0x%x\n",
2638 irsp->unsli3.sli3Words[7]);
2640 list_for_each_entry(iocbq, &saveq->list, list) {
2641 irsp = &(iocbq->iocb);
2642 if (irsp->ulpBdeCount != 0) {
2643 iocbq->context2 = lpfc_sli_get_buff(phba, pring,
2644 irsp->un.ulpWord[3]);
2645 if (!iocbq->context2)
2646 lpfc_printf_log(phba,
2649 "0343 Ring %d Cannot find "
2650 "buffer for an unsolicited iocb"
2651 ". tag 0x%x\n", pring->ringno,
2652 irsp->un.ulpWord[3]);
2654 if (irsp->ulpBdeCount == 2) {
2655 iocbq->context3 = lpfc_sli_get_buff(phba, pring,
2656 irsp->unsli3.sli3Words[7]);
2657 if (!iocbq->context3)
2658 lpfc_printf_log(phba,
2661 "0344 Ring %d Cannot find "
2662 "buffer for an unsolicited "
2665 irsp->unsli3.sli3Words[7]);
2669 if (irsp->ulpBdeCount != 0 &&
2670 (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
2671 irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
2674 /* search continue save q for same XRI */
2675 list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
2676 if (iocbq->iocb.unsli3.rcvsli3.ox_id ==
2677 saveq->iocb.unsli3.rcvsli3.ox_id) {
2678 list_add_tail(&saveq->list, &iocbq->list);
2684 list_add_tail(&saveq->clist,
2685 &pring->iocb_continue_saveq);
2686 if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
2687 list_del_init(&iocbq->clist);
2689 irsp = &(saveq->iocb);
2693 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
2694 (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
2695 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
2696 Rctl = FC_RCTL_ELS_REQ;
2699 w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
2700 Rctl = w5p->hcsw.Rctl;
2701 Type = w5p->hcsw.Type;
2703 /* Firmware Workaround */
2704 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
2705 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
2706 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
2707 Rctl = FC_RCTL_ELS_REQ;
2709 w5p->hcsw.Rctl = Rctl;
2710 w5p->hcsw.Type = Type;
2714 if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
2715 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2716 "0313 Ring %d handler: unexpected Rctl x%x "
2717 "Type x%x received\n",
2718 pring->ringno, Rctl, Type);
2724 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
2725 * @phba: Pointer to HBA context object.
2726 * @pring: Pointer to driver SLI ring object.
2727 * @prspiocb: Pointer to response iocb object.
2729 * This function looks up the iocb_lookup table to get the command iocb
2730 * corresponding to the given response iocb using the iotag of the
2731 * response iocb. This function is called with the hbalock held.
2732 * This function returns the command iocb object if it finds the command
2733 * iocb else returns NULL.
2735 static struct lpfc_iocbq *
2736 lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
2737 struct lpfc_sli_ring *pring,
2738 struct lpfc_iocbq *prspiocb)
2740 struct lpfc_iocbq *cmd_iocb = NULL;
2742 lockdep_assert_held(&phba->hbalock);
2744 iotag = prspiocb->iocb.ulpIoTag;
2746 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2747 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2748 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
2749 /* remove from txcmpl queue list */
2750 list_del_init(&cmd_iocb->list);
2751 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
2756 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2757 "0317 iotag x%x is out of "
2758 "range: max iotag x%x wd0 x%x\n",
2759 iotag, phba->sli.last_iotag,
2760 *(((uint32_t *) &prspiocb->iocb) + 7));
2765 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2766 * @phba: Pointer to HBA context object.
2767 * @pring: Pointer to driver SLI ring object.
2770 * This function looks up the iocb_lookup table to get the command iocb
2771 * corresponding to the given iotag. This function is called with the
2773 * This function returns the command iocb object if it finds the command
2774 * iocb else returns NULL.
2776 static struct lpfc_iocbq *
2777 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
2778 struct lpfc_sli_ring *pring, uint16_t iotag)
2780 struct lpfc_iocbq *cmd_iocb = NULL;
2782 lockdep_assert_held(&phba->hbalock);
2783 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2784 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2785 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
2786 /* remove from txcmpl queue list */
2787 list_del_init(&cmd_iocb->list);
2788 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
2793 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2794 "0372 iotag x%x lookup error: max iotag (x%x) "
2796 iotag, phba->sli.last_iotag,
2797 cmd_iocb ? cmd_iocb->iocb_flag : 0xffff);
2802 * lpfc_sli_process_sol_iocb - process solicited iocb completion
2803 * @phba: Pointer to HBA context object.
2804 * @pring: Pointer to driver SLI ring object.
2805 * @saveq: Pointer to the response iocb to be processed.
2807 * This function is called by the ring event handler for non-fcp
2808 * rings when there is a new response iocb in the response ring.
2809 * The caller is not required to hold any locks. This function
2810 * gets the command iocb associated with the response iocb and
2811 * calls the completion handler for the command iocb. If there
2812 * is no completion handler, the function will free the resources
2813 * associated with command iocb. If the response iocb is for
2814 * an already aborted command iocb, the status of the completion
2815 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
2816 * This function always returns 1.
2819 lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2820 struct lpfc_iocbq *saveq)
2822 struct lpfc_iocbq *cmdiocbp;
2824 unsigned long iflag;
2826 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
2827 spin_lock_irqsave(&phba->hbalock, iflag);
2828 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
2829 spin_unlock_irqrestore(&phba->hbalock, iflag);
2832 if (cmdiocbp->iocb_cmpl) {
2834 * If an ELS command failed send an event to mgmt
2837 if (saveq->iocb.ulpStatus &&
2838 (pring->ringno == LPFC_ELS_RING) &&
2839 (cmdiocbp->iocb.ulpCommand ==
2840 CMD_ELS_REQUEST64_CR))
2841 lpfc_send_els_failure_event(phba,
2845 * Post all ELS completions to the worker thread.
2846 * All other are passed to the completion callback.
2848 if (pring->ringno == LPFC_ELS_RING) {
2849 if ((phba->sli_rev < LPFC_SLI_REV4) &&
2850 (cmdiocbp->iocb_flag &
2851 LPFC_DRIVER_ABORTED)) {
2852 spin_lock_irqsave(&phba->hbalock,
2854 cmdiocbp->iocb_flag &=
2855 ~LPFC_DRIVER_ABORTED;
2856 spin_unlock_irqrestore(&phba->hbalock,
2858 saveq->iocb.ulpStatus =
2859 IOSTAT_LOCAL_REJECT;
2860 saveq->iocb.un.ulpWord[4] =
2863 /* Firmware could still be in progress
2864 * of DMAing payload, so don't free data
2865 * buffer till after a hbeat.
2867 spin_lock_irqsave(&phba->hbalock,
2869 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
2870 spin_unlock_irqrestore(&phba->hbalock,
2873 if (phba->sli_rev == LPFC_SLI_REV4) {
2874 if (saveq->iocb_flag &
2875 LPFC_EXCHANGE_BUSY) {
2876 /* Set cmdiocb flag for the
2877 * exchange busy so sgl (xri)
2878 * will not be released until
2879 * the abort xri is received
2883 &phba->hbalock, iflag);
2884 cmdiocbp->iocb_flag |=
2886 spin_unlock_irqrestore(
2887 &phba->hbalock, iflag);
2889 if (cmdiocbp->iocb_flag &
2890 LPFC_DRIVER_ABORTED) {
2892 * Clear LPFC_DRIVER_ABORTED
2893 * bit in case it was driver
2897 &phba->hbalock, iflag);
2898 cmdiocbp->iocb_flag &=
2899 ~LPFC_DRIVER_ABORTED;
2900 spin_unlock_irqrestore(
2901 &phba->hbalock, iflag);
2902 cmdiocbp->iocb.ulpStatus =
2903 IOSTAT_LOCAL_REJECT;
2904 cmdiocbp->iocb.un.ulpWord[4] =
2905 IOERR_ABORT_REQUESTED;
2907 * For SLI4, irsiocb contains
2908 * NO_XRI in sli_xritag, it
2909 * shall not affect releasing
2910 * sgl (xri) process.
2912 saveq->iocb.ulpStatus =
2913 IOSTAT_LOCAL_REJECT;
2914 saveq->iocb.un.ulpWord[4] =
2917 &phba->hbalock, iflag);
2919 LPFC_DELAY_MEM_FREE;
2920 spin_unlock_irqrestore(
2921 &phba->hbalock, iflag);
2925 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
2927 lpfc_sli_release_iocbq(phba, cmdiocbp);
2930 * Unknown initiating command based on the response iotag.
2931 * This could be the case on the ELS ring because of
2934 if (pring->ringno != LPFC_ELS_RING) {
2936 * Ring <ringno> handler: unexpected completion IoTag
2939 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2940 "0322 Ring %d handler: "
2941 "unexpected completion IoTag x%x "
2942 "Data: x%x x%x x%x x%x\n",
2944 saveq->iocb.ulpIoTag,
2945 saveq->iocb.ulpStatus,
2946 saveq->iocb.un.ulpWord[4],
2947 saveq->iocb.ulpCommand,
2948 saveq->iocb.ulpContext);
2956 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
2957 * @phba: Pointer to HBA context object.
2958 * @pring: Pointer to driver SLI ring object.
2960 * This function is called from the iocb ring event handlers when
2961 * put pointer is ahead of the get pointer for a ring. This function signal
2962 * an error attention condition to the worker thread and the worker
2963 * thread will transition the HBA to offline state.
2966 lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
2968 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2970 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
2971 * rsp ring <portRspMax>
2973 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2974 "0312 Ring %d handler: portRspPut %d "
2975 "is bigger than rsp ring %d\n",
2976 pring->ringno, le32_to_cpu(pgp->rspPutInx),
2977 pring->sli.sli3.numRiocb);
2979 phba->link_state = LPFC_HBA_ERROR;
2982 * All error attention handlers are posted to
2985 phba->work_ha |= HA_ERATT;
2986 phba->work_hs = HS_FFER3;
2988 lpfc_worker_wake_up(phba);
2994 * lpfc_poll_eratt - Error attention polling timer timeout handler
2995 * @ptr: Pointer to address of HBA context object.
2997 * This function is invoked by the Error Attention polling timer when the
2998 * timer times out. It will check the SLI Error Attention register for
2999 * possible attention events. If so, it will post an Error Attention event
3000 * and wake up worker thread to process it. Otherwise, it will set up the
3001 * Error Attention polling timer for the next poll.
3003 void lpfc_poll_eratt(unsigned long ptr)
3005 struct lpfc_hba *phba;
3007 uint64_t sli_intr, cnt;
3009 phba = (struct lpfc_hba *)ptr;
3011 /* Here we will also keep track of interrupts per sec of the hba */
3012 sli_intr = phba->sli.slistat.sli_intr;
3014 if (phba->sli.slistat.sli_prev_intr > sli_intr)
3015 cnt = (((uint64_t)(-1) - phba->sli.slistat.sli_prev_intr) +
3018 cnt = (sli_intr - phba->sli.slistat.sli_prev_intr);
3020 /* 64-bit integer division not supported on 32-bit x86 - use do_div */
3021 do_div(cnt, phba->eratt_poll_interval);
3022 phba->sli.slistat.sli_ips = cnt;
3024 phba->sli.slistat.sli_prev_intr = sli_intr;
3026 /* Check chip HA register for error event */
3027 eratt = lpfc_sli_check_eratt(phba);
3030 /* Tell the worker thread there is work to do */
3031 lpfc_worker_wake_up(phba);
3033 /* Restart the timer for next eratt poll */
3034 mod_timer(&phba->eratt_poll,
3036 msecs_to_jiffies(1000 * phba->eratt_poll_interval));
3042 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
3043 * @phba: Pointer to HBA context object.
3044 * @pring: Pointer to driver SLI ring object.
3045 * @mask: Host attention register mask for this ring.
3047 * This function is called from the interrupt context when there is a ring
3048 * event for the fcp ring. The caller does not hold any lock.
3049 * The function processes each response iocb in the response ring until it
3050 * finds an iocb with LE bit set and chains all the iocbs up to the iocb with
3051 * LE bit set. The function will call the completion handler of the command iocb
3052 * if the response iocb indicates a completion for a command iocb or it is
3053 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
3054 * function if this is an unsolicited iocb.
3055 * This routine presumes LPFC_FCP_RING handling and doesn't bother
3056 * to check it explicitly.
3059 lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
3060 struct lpfc_sli_ring *pring, uint32_t mask)
3062 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
3063 IOCB_t *irsp = NULL;
3064 IOCB_t *entry = NULL;
3065 struct lpfc_iocbq *cmdiocbq = NULL;
3066 struct lpfc_iocbq rspiocbq;
3068 uint32_t portRspPut, portRspMax;
3070 lpfc_iocb_type type;
3071 unsigned long iflag;
3072 uint32_t rsp_cmpl = 0;
3074 spin_lock_irqsave(&phba->hbalock, iflag);
3075 pring->stats.iocb_event++;
3078 * The next available response entry should never exceed the maximum
3079 * entries. If it does, treat it as an adapter hardware error.
3081 portRspMax = pring->sli.sli3.numRiocb;
3082 portRspPut = le32_to_cpu(pgp->rspPutInx);
3083 if (unlikely(portRspPut >= portRspMax)) {
3084 lpfc_sli_rsp_pointers_error(phba, pring);
3085 spin_unlock_irqrestore(&phba->hbalock, iflag);
3088 if (phba->fcp_ring_in_use) {
3089 spin_unlock_irqrestore(&phba->hbalock, iflag);
3092 phba->fcp_ring_in_use = 1;
3095 while (pring->sli.sli3.rspidx != portRspPut) {
3097 * Fetch an entry off the ring and copy it into a local data
3098 * structure. The copy involves a byte-swap since the
3099 * network byte order and pci byte orders are different.
3101 entry = lpfc_resp_iocb(phba, pring);
3102 phba->last_completion_time = jiffies;
3104 if (++pring->sli.sli3.rspidx >= portRspMax)
3105 pring->sli.sli3.rspidx = 0;
3107 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
3108 (uint32_t *) &rspiocbq.iocb,
3109 phba->iocb_rsp_size);
3110 INIT_LIST_HEAD(&(rspiocbq.list));
3111 irsp = &rspiocbq.iocb;
3113 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
3114 pring->stats.iocb_rsp++;
3117 if (unlikely(irsp->ulpStatus)) {
3119 * If resource errors reported from HBA, reduce
3120 * queuedepths of the SCSI device.
3122 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3123 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3124 IOERR_NO_RESOURCES)) {
3125 spin_unlock_irqrestore(&phba->hbalock, iflag);
3126 phba->lpfc_rampdown_queue_depth(phba);
3127 spin_lock_irqsave(&phba->hbalock, iflag);
3130 /* Rsp ring <ringno> error: IOCB */
3131 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3132 "0336 Rsp Ring %d error: IOCB Data: "
3133 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
3135 irsp->un.ulpWord[0],
3136 irsp->un.ulpWord[1],
3137 irsp->un.ulpWord[2],
3138 irsp->un.ulpWord[3],
3139 irsp->un.ulpWord[4],
3140 irsp->un.ulpWord[5],
3141 *(uint32_t *)&irsp->un1,
3142 *((uint32_t *)&irsp->un1 + 1));
3146 case LPFC_ABORT_IOCB:
3149 * Idle exchange closed via ABTS from port. No iocb
3150 * resources need to be recovered.
3152 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
3153 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3154 "0333 IOCB cmd 0x%x"
3155 " processed. Skipping"
3161 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
3163 if (unlikely(!cmdiocbq))
3165 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED)
3166 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
3167 if (cmdiocbq->iocb_cmpl) {
3168 spin_unlock_irqrestore(&phba->hbalock, iflag);
3169 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
3171 spin_lock_irqsave(&phba->hbalock, iflag);
3174 case LPFC_UNSOL_IOCB:
3175 spin_unlock_irqrestore(&phba->hbalock, iflag);
3176 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
3177 spin_lock_irqsave(&phba->hbalock, iflag);
3180 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3181 char adaptermsg[LPFC_MAX_ADPTMSG];
3182 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3183 memcpy(&adaptermsg[0], (uint8_t *) irsp,
3185 dev_warn(&((phba->pcidev)->dev),
3187 phba->brd_no, adaptermsg);
3189 /* Unknown IOCB command */
3190 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3191 "0334 Unknown IOCB command "
3192 "Data: x%x, x%x x%x x%x x%x\n",
3193 type, irsp->ulpCommand,
3202 * The response IOCB has been processed. Update the ring
3203 * pointer in SLIM. If the port response put pointer has not
3204 * been updated, sync the pgp->rspPutInx and fetch the new port
3205 * response put pointer.
3207 writel(pring->sli.sli3.rspidx,
3208 &phba->host_gp[pring->ringno].rspGetInx);
3210 if (pring->sli.sli3.rspidx == portRspPut)
3211 portRspPut = le32_to_cpu(pgp->rspPutInx);
3214 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
3215 pring->stats.iocb_rsp_full++;
3216 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3217 writel(status, phba->CAregaddr);
3218 readl(phba->CAregaddr);
3220 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3221 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3222 pring->stats.iocb_cmd_empty++;
3224 /* Force update of the local copy of cmdGetInx */
3225 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3226 lpfc_sli_resume_iocb(phba, pring);
3228 if ((pring->lpfc_sli_cmd_available))
3229 (pring->lpfc_sli_cmd_available) (phba, pring);
3233 phba->fcp_ring_in_use = 0;
3234 spin_unlock_irqrestore(&phba->hbalock, iflag);
3239 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
3240 * @phba: Pointer to HBA context object.
3241 * @pring: Pointer to driver SLI ring object.
3242 * @rspiocbp: Pointer to driver response IOCB object.
3244 * This function is called from the worker thread when there is a slow-path
3245 * response IOCB to process. This function chains all the response iocbs until
3246 * seeing the iocb with the LE bit set. The function will call
3247 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
3248 * completion of a command iocb. The function will call the
3249 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
3250 * The function frees the resources or calls the completion handler if this
3251 * iocb is an abort completion. The function returns NULL when the response
3252 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
3253 * this function shall chain the iocb on to the iocb_continueq and return the
3254 * response iocb passed in.
3256 static struct lpfc_iocbq *
3257 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3258 struct lpfc_iocbq *rspiocbp)
3260 struct lpfc_iocbq *saveq;
3261 struct lpfc_iocbq *cmdiocbp;
3262 struct lpfc_iocbq *next_iocb;
3263 IOCB_t *irsp = NULL;
3264 uint32_t free_saveq;
3265 uint8_t iocb_cmd_type;
3266 lpfc_iocb_type type;
3267 unsigned long iflag;
3270 spin_lock_irqsave(&phba->hbalock, iflag);
3271 /* First add the response iocb to the countinueq list */
3272 list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
3273 pring->iocb_continueq_cnt++;
3275 /* Now, determine whether the list is completed for processing */
3276 irsp = &rspiocbp->iocb;
3279 * By default, the driver expects to free all resources
3280 * associated with this iocb completion.
3283 saveq = list_get_first(&pring->iocb_continueq,
3284 struct lpfc_iocbq, list);
3285 irsp = &(saveq->iocb);
3286 list_del_init(&pring->iocb_continueq);
3287 pring->iocb_continueq_cnt = 0;
3289 pring->stats.iocb_rsp++;
3292 * If resource errors reported from HBA, reduce
3293 * queuedepths of the SCSI device.
3295 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3296 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3297 IOERR_NO_RESOURCES)) {
3298 spin_unlock_irqrestore(&phba->hbalock, iflag);
3299 phba->lpfc_rampdown_queue_depth(phba);
3300 spin_lock_irqsave(&phba->hbalock, iflag);
3303 if (irsp->ulpStatus) {
3304 /* Rsp ring <ringno> error: IOCB */
3305 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3306 "0328 Rsp Ring %d error: "
3311 "x%x x%x x%x x%x\n",
3313 irsp->un.ulpWord[0],
3314 irsp->un.ulpWord[1],
3315 irsp->un.ulpWord[2],
3316 irsp->un.ulpWord[3],
3317 irsp->un.ulpWord[4],
3318 irsp->un.ulpWord[5],
3319 *(((uint32_t *) irsp) + 6),
3320 *(((uint32_t *) irsp) + 7),
3321 *(((uint32_t *) irsp) + 8),
3322 *(((uint32_t *) irsp) + 9),
3323 *(((uint32_t *) irsp) + 10),
3324 *(((uint32_t *) irsp) + 11),
3325 *(((uint32_t *) irsp) + 12),
3326 *(((uint32_t *) irsp) + 13),
3327 *(((uint32_t *) irsp) + 14),
3328 *(((uint32_t *) irsp) + 15));
3332 * Fetch the IOCB command type and call the correct completion
3333 * routine. Solicited and Unsolicited IOCBs on the ELS ring
3334 * get freed back to the lpfc_iocb_list by the discovery
3337 iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
3338 type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
3341 spin_unlock_irqrestore(&phba->hbalock, iflag);
3342 rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
3343 spin_lock_irqsave(&phba->hbalock, iflag);
3346 case LPFC_UNSOL_IOCB:
3347 spin_unlock_irqrestore(&phba->hbalock, iflag);
3348 rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
3349 spin_lock_irqsave(&phba->hbalock, iflag);
3354 case LPFC_ABORT_IOCB:
3356 if (irsp->ulpCommand != CMD_XRI_ABORTED_CX)
3357 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
3360 /* Call the specified completion routine */
3361 if (cmdiocbp->iocb_cmpl) {
3362 spin_unlock_irqrestore(&phba->hbalock,
3364 (cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
3366 spin_lock_irqsave(&phba->hbalock,
3369 __lpfc_sli_release_iocbq(phba,
3374 case LPFC_UNKNOWN_IOCB:
3375 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3376 char adaptermsg[LPFC_MAX_ADPTMSG];
3377 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3378 memcpy(&adaptermsg[0], (uint8_t *)irsp,
3380 dev_warn(&((phba->pcidev)->dev),
3382 phba->brd_no, adaptermsg);
3384 /* Unknown IOCB command */
3385 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3386 "0335 Unknown IOCB "
3387 "command Data: x%x "
3398 list_for_each_entry_safe(rspiocbp, next_iocb,
3399 &saveq->list, list) {
3400 list_del_init(&rspiocbp->list);
3401 __lpfc_sli_release_iocbq(phba, rspiocbp);
3403 __lpfc_sli_release_iocbq(phba, saveq);
3407 spin_unlock_irqrestore(&phba->hbalock, iflag);
3412 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
3413 * @phba: Pointer to HBA context object.
3414 * @pring: Pointer to driver SLI ring object.
3415 * @mask: Host attention register mask for this ring.
3417 * This routine wraps the actual slow_ring event process routine from the
3418 * API jump table function pointer from the lpfc_hba struct.
3421 lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
3422 struct lpfc_sli_ring *pring, uint32_t mask)
3424 phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
3428 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
3429 * @phba: Pointer to HBA context object.
3430 * @pring: Pointer to driver SLI ring object.
3431 * @mask: Host attention register mask for this ring.
3433 * This function is called from the worker thread when there is a ring event
3434 * for non-fcp rings. The caller does not hold any lock. The function will
3435 * remove each response iocb in the response ring and calls the handle
3436 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3439 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
3440 struct lpfc_sli_ring *pring, uint32_t mask)
3442 struct lpfc_pgp *pgp;
3444 IOCB_t *irsp = NULL;
3445 struct lpfc_iocbq *rspiocbp = NULL;
3446 uint32_t portRspPut, portRspMax;
3447 unsigned long iflag;
3450 pgp = &phba->port_gp[pring->ringno];
3451 spin_lock_irqsave(&phba->hbalock, iflag);
3452 pring->stats.iocb_event++;
3455 * The next available response entry should never exceed the maximum
3456 * entries. If it does, treat it as an adapter hardware error.
3458 portRspMax = pring->sli.sli3.numRiocb;
3459 portRspPut = le32_to_cpu(pgp->rspPutInx);
3460 if (portRspPut >= portRspMax) {
3462 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
3463 * rsp ring <portRspMax>
3465 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3466 "0303 Ring %d handler: portRspPut %d "
3467 "is bigger than rsp ring %d\n",
3468 pring->ringno, portRspPut, portRspMax);
3470 phba->link_state = LPFC_HBA_ERROR;
3471 spin_unlock_irqrestore(&phba->hbalock, iflag);
3473 phba->work_hs = HS_FFER3;
3474 lpfc_handle_eratt(phba);
3480 while (pring->sli.sli3.rspidx != portRspPut) {
3482 * Build a completion list and call the appropriate handler.
3483 * The process is to get the next available response iocb, get
3484 * a free iocb from the list, copy the response data into the
3485 * free iocb, insert to the continuation list, and update the
3486 * next response index to slim. This process makes response
3487 * iocb's in the ring available to DMA as fast as possible but
3488 * pays a penalty for a copy operation. Since the iocb is
3489 * only 32 bytes, this penalty is considered small relative to
3490 * the PCI reads for register values and a slim write. When
3491 * the ulpLe field is set, the entire Command has been
3494 entry = lpfc_resp_iocb(phba, pring);
3496 phba->last_completion_time = jiffies;
3497 rspiocbp = __lpfc_sli_get_iocbq(phba);
3498 if (rspiocbp == NULL) {
3499 printk(KERN_ERR "%s: out of buffers! Failing "
3500 "completion.\n", __func__);
3504 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
3505 phba->iocb_rsp_size);
3506 irsp = &rspiocbp->iocb;
3508 if (++pring->sli.sli3.rspidx >= portRspMax)
3509 pring->sli.sli3.rspidx = 0;
3511 if (pring->ringno == LPFC_ELS_RING) {
3512 lpfc_debugfs_slow_ring_trc(phba,
3513 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
3514 *(((uint32_t *) irsp) + 4),
3515 *(((uint32_t *) irsp) + 6),
3516 *(((uint32_t *) irsp) + 7));
3519 writel(pring->sli.sli3.rspidx,
3520 &phba->host_gp[pring->ringno].rspGetInx);
3522 spin_unlock_irqrestore(&phba->hbalock, iflag);
3523 /* Handle the response IOCB */
3524 rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
3525 spin_lock_irqsave(&phba->hbalock, iflag);
3528 * If the port response put pointer has not been updated, sync
3529 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
3530 * response put pointer.
3532 if (pring->sli.sli3.rspidx == portRspPut) {
3533 portRspPut = le32_to_cpu(pgp->rspPutInx);
3535 } /* while (pring->sli.sli3.rspidx != portRspPut) */
3537 if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
3538 /* At least one response entry has been freed */
3539 pring->stats.iocb_rsp_full++;
3540 /* SET RxRE_RSP in Chip Att register */
3541 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3542 writel(status, phba->CAregaddr);
3543 readl(phba->CAregaddr); /* flush */
3545 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3546 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3547 pring->stats.iocb_cmd_empty++;
3549 /* Force update of the local copy of cmdGetInx */
3550 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3551 lpfc_sli_resume_iocb(phba, pring);
3553 if ((pring->lpfc_sli_cmd_available))
3554 (pring->lpfc_sli_cmd_available) (phba, pring);
3558 spin_unlock_irqrestore(&phba->hbalock, iflag);
3563 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
3564 * @phba: Pointer to HBA context object.
3565 * @pring: Pointer to driver SLI ring object.
3566 * @mask: Host attention register mask for this ring.
3568 * This function is called from the worker thread when there is a pending
3569 * ELS response iocb on the driver internal slow-path response iocb worker
3570 * queue. The caller does not hold any lock. The function will remove each
3571 * response iocb from the response worker queue and calls the handle
3572 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3575 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
3576 struct lpfc_sli_ring *pring, uint32_t mask)
3578 struct lpfc_iocbq *irspiocbq;
3579 struct hbq_dmabuf *dmabuf;
3580 struct lpfc_cq_event *cq_event;
3581 unsigned long iflag;
3583 spin_lock_irqsave(&phba->hbalock, iflag);
3584 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
3585 spin_unlock_irqrestore(&phba->hbalock, iflag);
3586 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
3587 /* Get the response iocb from the head of work queue */
3588 spin_lock_irqsave(&phba->hbalock, iflag);
3589 list_remove_head(&phba->sli4_hba.sp_queue_event,
3590 cq_event, struct lpfc_cq_event, list);
3591 spin_unlock_irqrestore(&phba->hbalock, iflag);
3593 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
3594 case CQE_CODE_COMPL_WQE:
3595 irspiocbq = container_of(cq_event, struct lpfc_iocbq,
3597 /* Translate ELS WCQE to response IOCBQ */
3598 irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba,
3601 lpfc_sli_sp_handle_rspiocb(phba, pring,
3604 case CQE_CODE_RECEIVE:
3605 case CQE_CODE_RECEIVE_V1:
3606 dmabuf = container_of(cq_event, struct hbq_dmabuf,
3608 lpfc_sli4_handle_received_buffer(phba, dmabuf);
3617 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
3618 * @phba: Pointer to HBA context object.
3619 * @pring: Pointer to driver SLI ring object.
3621 * This function aborts all iocbs in the given ring and frees all the iocb
3622 * objects in txq. This function issues an abort iocb for all the iocb commands
3623 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3624 * the return of this function. The caller is not required to hold any locks.
3627 lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3629 LIST_HEAD(completions);
3630 struct lpfc_iocbq *iocb, *next_iocb;
3632 if (pring->ringno == LPFC_ELS_RING) {
3633 lpfc_fabric_abort_hba(phba);
3636 /* Error everything on txq and txcmplq
3639 if (phba->sli_rev >= LPFC_SLI_REV4) {
3640 spin_lock_irq(&pring->ring_lock);
3641 list_splice_init(&pring->txq, &completions);
3643 spin_unlock_irq(&pring->ring_lock);
3645 spin_lock_irq(&phba->hbalock);
3646 /* Next issue ABTS for everything on the txcmplq */
3647 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3648 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3649 spin_unlock_irq(&phba->hbalock);
3651 spin_lock_irq(&phba->hbalock);
3652 list_splice_init(&pring->txq, &completions);
3655 /* Next issue ABTS for everything on the txcmplq */
3656 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3657 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3658 spin_unlock_irq(&phba->hbalock);
3661 /* Cancel all the IOCBs from the completions list */
3662 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3667 * lpfc_sli_abort_wqe_ring - Abort all iocbs in the ring
3668 * @phba: Pointer to HBA context object.
3669 * @pring: Pointer to driver SLI ring object.
3671 * This function aborts all iocbs in the given ring and frees all the iocb
3672 * objects in txq. This function issues an abort iocb for all the iocb commands
3673 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3674 * the return of this function. The caller is not required to hold any locks.
3677 lpfc_sli_abort_wqe_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3679 LIST_HEAD(completions);
3680 struct lpfc_iocbq *iocb, *next_iocb;
3682 if (pring->ringno == LPFC_ELS_RING)
3683 lpfc_fabric_abort_hba(phba);
3685 spin_lock_irq(&phba->hbalock);
3686 /* Next issue ABTS for everything on the txcmplq */
3687 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3688 lpfc_sli4_abort_nvme_io(phba, pring, iocb);
3689 spin_unlock_irq(&phba->hbalock);
3694 * lpfc_sli_abort_fcp_rings - Abort all iocbs in all FCP rings
3695 * @phba: Pointer to HBA context object.
3696 * @pring: Pointer to driver SLI ring object.
3698 * This function aborts all iocbs in FCP rings and frees all the iocb
3699 * objects in txq. This function issues an abort iocb for all the iocb commands
3700 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3701 * the return of this function. The caller is not required to hold any locks.
3704 lpfc_sli_abort_fcp_rings(struct lpfc_hba *phba)
3706 struct lpfc_sli *psli = &phba->sli;
3707 struct lpfc_sli_ring *pring;
3710 /* Look on all the FCP Rings for the iotag */
3711 if (phba->sli_rev >= LPFC_SLI_REV4) {
3712 for (i = 0; i < phba->cfg_fcp_io_channel; i++) {
3713 pring = phba->sli4_hba.fcp_wq[i]->pring;
3714 lpfc_sli_abort_iocb_ring(phba, pring);
3717 pring = &psli->sli3_ring[LPFC_FCP_RING];
3718 lpfc_sli_abort_iocb_ring(phba, pring);
3723 * lpfc_sli_abort_nvme_rings - Abort all wqes in all NVME rings
3724 * @phba: Pointer to HBA context object.
3726 * This function aborts all wqes in NVME rings. This function issues an
3727 * abort wqe for all the outstanding IO commands in txcmplq. The iocbs in
3728 * the txcmplq is not guaranteed to complete before the return of this
3729 * function. The caller is not required to hold any locks.
3732 lpfc_sli_abort_nvme_rings(struct lpfc_hba *phba)
3734 struct lpfc_sli_ring *pring;
3737 if (phba->sli_rev < LPFC_SLI_REV4)
3740 /* Abort all IO on each NVME ring. */
3741 for (i = 0; i < phba->cfg_nvme_io_channel; i++) {
3742 pring = phba->sli4_hba.nvme_wq[i]->pring;
3743 lpfc_sli_abort_wqe_ring(phba, pring);
3749 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
3750 * @phba: Pointer to HBA context object.
3752 * This function flushes all iocbs in the fcp ring and frees all the iocb
3753 * objects in txq and txcmplq. This function will not issue abort iocbs
3754 * for all the iocb commands in txcmplq, they will just be returned with
3755 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3756 * slot has been permanently disabled.
3759 lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba)
3763 struct lpfc_sli *psli = &phba->sli;
3764 struct lpfc_sli_ring *pring;
3767 spin_lock_irq(&phba->hbalock);
3768 /* Indicate the I/O queues are flushed */
3769 phba->hba_flag |= HBA_FCP_IOQ_FLUSH;
3770 spin_unlock_irq(&phba->hbalock);
3772 /* Look on all the FCP Rings for the iotag */
3773 if (phba->sli_rev >= LPFC_SLI_REV4) {
3774 for (i = 0; i < phba->cfg_fcp_io_channel; i++) {
3775 pring = phba->sli4_hba.fcp_wq[i]->pring;
3777 spin_lock_irq(&pring->ring_lock);
3778 /* Retrieve everything on txq */
3779 list_splice_init(&pring->txq, &txq);
3780 /* Retrieve everything on the txcmplq */
3781 list_splice_init(&pring->txcmplq, &txcmplq);
3783 pring->txcmplq_cnt = 0;
3784 spin_unlock_irq(&pring->ring_lock);
3787 lpfc_sli_cancel_iocbs(phba, &txq,
3788 IOSTAT_LOCAL_REJECT,
3790 /* Flush the txcmpq */
3791 lpfc_sli_cancel_iocbs(phba, &txcmplq,
3792 IOSTAT_LOCAL_REJECT,
3796 pring = &psli->sli3_ring[LPFC_FCP_RING];
3798 spin_lock_irq(&phba->hbalock);
3799 /* Retrieve everything on txq */
3800 list_splice_init(&pring->txq, &txq);
3801 /* Retrieve everything on the txcmplq */
3802 list_splice_init(&pring->txcmplq, &txcmplq);
3804 pring->txcmplq_cnt = 0;
3805 spin_unlock_irq(&phba->hbalock);
3808 lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
3810 /* Flush the txcmpq */
3811 lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
3817 * lpfc_sli_flush_nvme_rings - flush all wqes in the nvme rings
3818 * @phba: Pointer to HBA context object.
3820 * This function flushes all wqes in the nvme rings and frees all resources
3821 * in the txcmplq. This function does not issue abort wqes for the IO
3822 * commands in txcmplq, they will just be returned with
3823 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3824 * slot has been permanently disabled.
3827 lpfc_sli_flush_nvme_rings(struct lpfc_hba *phba)
3830 struct lpfc_sli_ring *pring;
3833 if (phba->sli_rev < LPFC_SLI_REV4)
3836 /* Hint to other driver operations that a flush is in progress. */
3837 spin_lock_irq(&phba->hbalock);
3838 phba->hba_flag |= HBA_NVME_IOQ_FLUSH;
3839 spin_unlock_irq(&phba->hbalock);
3841 /* Cycle through all NVME rings and complete each IO with
3842 * a local driver reason code. This is a flush so no
3843 * abort exchange to FW.
3845 for (i = 0; i < phba->cfg_nvme_io_channel; i++) {
3846 pring = phba->sli4_hba.nvme_wq[i]->pring;
3848 /* Retrieve everything on the txcmplq */
3849 spin_lock_irq(&pring->ring_lock);
3850 list_splice_init(&pring->txcmplq, &txcmplq);
3851 pring->txcmplq_cnt = 0;
3852 spin_unlock_irq(&pring->ring_lock);
3854 /* Flush the txcmpq &&&PAE */
3855 lpfc_sli_cancel_iocbs(phba, &txcmplq,
3856 IOSTAT_LOCAL_REJECT,
3862 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
3863 * @phba: Pointer to HBA context object.
3864 * @mask: Bit mask to be checked.
3866 * This function reads the host status register and compares
3867 * with the provided bit mask to check if HBA completed
3868 * the restart. This function will wait in a loop for the
3869 * HBA to complete restart. If the HBA does not restart within
3870 * 15 iterations, the function will reset the HBA again. The
3871 * function returns 1 when HBA fail to restart otherwise returns
3875 lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
3881 /* Read the HBA Host Status Register */
3882 if (lpfc_readl(phba->HSregaddr, &status))
3886 * Check status register every 100ms for 5 retries, then every
3887 * 500ms for 5, then every 2.5 sec for 5, then reset board and
3888 * every 2.5 sec for 4.
3889 * Break our of the loop if errors occurred during init.
3891 while (((status & mask) != mask) &&
3892 !(status & HS_FFERM) &&
3904 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3905 lpfc_sli_brdrestart(phba);
3907 /* Read the HBA Host Status Register */
3908 if (lpfc_readl(phba->HSregaddr, &status)) {
3914 /* Check to see if any errors occurred during init */
3915 if ((status & HS_FFERM) || (i >= 20)) {
3916 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3917 "2751 Adapter failed to restart, "
3918 "status reg x%x, FW Data: A8 x%x AC x%x\n",
3920 readl(phba->MBslimaddr + 0xa8),
3921 readl(phba->MBslimaddr + 0xac));
3922 phba->link_state = LPFC_HBA_ERROR;
3930 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3931 * @phba: Pointer to HBA context object.
3932 * @mask: Bit mask to be checked.
3934 * This function checks the host status register to check if HBA is
3935 * ready. This function will wait in a loop for the HBA to be ready
3936 * If the HBA is not ready , the function will will reset the HBA PCI
3937 * function again. The function returns 1 when HBA fail to be ready
3938 * otherwise returns zero.
3941 lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
3946 /* Read the HBA Host Status Register */
3947 status = lpfc_sli4_post_status_check(phba);
3950 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3951 lpfc_sli_brdrestart(phba);
3952 status = lpfc_sli4_post_status_check(phba);
3955 /* Check to see if any errors occurred during init */
3957 phba->link_state = LPFC_HBA_ERROR;
3960 phba->sli4_hba.intr_enable = 0;
3966 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3967 * @phba: Pointer to HBA context object.
3968 * @mask: Bit mask to be checked.
3970 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3971 * from the API jump table function pointer from the lpfc_hba struct.
3974 lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
3976 return phba->lpfc_sli_brdready(phba, mask);
3979 #define BARRIER_TEST_PATTERN (0xdeadbeef)
3982 * lpfc_reset_barrier - Make HBA ready for HBA reset
3983 * @phba: Pointer to HBA context object.
3985 * This function is called before resetting an HBA. This function is called
3986 * with hbalock held and requests HBA to quiesce DMAs before a reset.
3988 void lpfc_reset_barrier(struct lpfc_hba *phba)
3990 uint32_t __iomem *resp_buf;
3991 uint32_t __iomem *mbox_buf;
3992 volatile uint32_t mbox;
3993 uint32_t hc_copy, ha_copy, resp_data;
3997 lockdep_assert_held(&phba->hbalock);
3999 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
4000 if (hdrtype != 0x80 ||
4001 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
4002 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
4006 * Tell the other part of the chip to suspend temporarily all
4009 resp_buf = phba->MBslimaddr;
4011 /* Disable the error attention */
4012 if (lpfc_readl(phba->HCregaddr, &hc_copy))
4014 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
4015 readl(phba->HCregaddr); /* flush */
4016 phba->link_flag |= LS_IGNORE_ERATT;
4018 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4020 if (ha_copy & HA_ERATT) {
4021 /* Clear Chip error bit */
4022 writel(HA_ERATT, phba->HAregaddr);
4023 phba->pport->stopped = 1;
4027 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
4028 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
4030 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
4031 mbox_buf = phba->MBslimaddr;
4032 writel(mbox, mbox_buf);
4034 for (i = 0; i < 50; i++) {
4035 if (lpfc_readl((resp_buf + 1), &resp_data))
4037 if (resp_data != ~(BARRIER_TEST_PATTERN))
4043 if (lpfc_readl((resp_buf + 1), &resp_data))
4045 if (resp_data != ~(BARRIER_TEST_PATTERN)) {
4046 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
4047 phba->pport->stopped)
4053 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
4055 for (i = 0; i < 500; i++) {
4056 if (lpfc_readl(resp_buf, &resp_data))
4058 if (resp_data != mbox)
4067 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4069 if (!(ha_copy & HA_ERATT))
4075 if (readl(phba->HAregaddr) & HA_ERATT) {
4076 writel(HA_ERATT, phba->HAregaddr);
4077 phba->pport->stopped = 1;
4081 phba->link_flag &= ~LS_IGNORE_ERATT;
4082 writel(hc_copy, phba->HCregaddr);
4083 readl(phba->HCregaddr); /* flush */
4087 * lpfc_sli_brdkill - Issue a kill_board mailbox command
4088 * @phba: Pointer to HBA context object.
4090 * This function issues a kill_board mailbox command and waits for
4091 * the error attention interrupt. This function is called for stopping
4092 * the firmware processing. The caller is not required to hold any
4093 * locks. This function calls lpfc_hba_down_post function to free
4094 * any pending commands after the kill. The function will return 1 when it
4095 * fails to kill the board else will return 0.
4098 lpfc_sli_brdkill(struct lpfc_hba *phba)
4100 struct lpfc_sli *psli;
4110 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4111 "0329 Kill HBA Data: x%x x%x\n",
4112 phba->pport->port_state, psli->sli_flag);
4114 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4118 /* Disable the error attention */
4119 spin_lock_irq(&phba->hbalock);
4120 if (lpfc_readl(phba->HCregaddr, &status)) {
4121 spin_unlock_irq(&phba->hbalock);
4122 mempool_free(pmb, phba->mbox_mem_pool);
4125 status &= ~HC_ERINT_ENA;
4126 writel(status, phba->HCregaddr);
4127 readl(phba->HCregaddr); /* flush */
4128 phba->link_flag |= LS_IGNORE_ERATT;
4129 spin_unlock_irq(&phba->hbalock);
4131 lpfc_kill_board(phba, pmb);
4132 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4133 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4135 if (retval != MBX_SUCCESS) {
4136 if (retval != MBX_BUSY)
4137 mempool_free(pmb, phba->mbox_mem_pool);
4138 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4139 "2752 KILL_BOARD command failed retval %d\n",
4141 spin_lock_irq(&phba->hbalock);
4142 phba->link_flag &= ~LS_IGNORE_ERATT;
4143 spin_unlock_irq(&phba->hbalock);
4147 spin_lock_irq(&phba->hbalock);
4148 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
4149 spin_unlock_irq(&phba->hbalock);
4151 mempool_free(pmb, phba->mbox_mem_pool);
4153 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
4154 * attention every 100ms for 3 seconds. If we don't get ERATT after
4155 * 3 seconds we still set HBA_ERROR state because the status of the
4156 * board is now undefined.
4158 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4160 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
4162 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4166 del_timer_sync(&psli->mbox_tmo);
4167 if (ha_copy & HA_ERATT) {
4168 writel(HA_ERATT, phba->HAregaddr);
4169 phba->pport->stopped = 1;
4171 spin_lock_irq(&phba->hbalock);
4172 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4173 psli->mbox_active = NULL;
4174 phba->link_flag &= ~LS_IGNORE_ERATT;
4175 spin_unlock_irq(&phba->hbalock);
4177 lpfc_hba_down_post(phba);
4178 phba->link_state = LPFC_HBA_ERROR;
4180 return ha_copy & HA_ERATT ? 0 : 1;
4184 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
4185 * @phba: Pointer to HBA context object.
4187 * This function resets the HBA by writing HC_INITFF to the control
4188 * register. After the HBA resets, this function resets all the iocb ring
4189 * indices. This function disables PCI layer parity checking during
4191 * This function returns 0 always.
4192 * The caller is not required to hold any locks.
4195 lpfc_sli_brdreset(struct lpfc_hba *phba)
4197 struct lpfc_sli *psli;
4198 struct lpfc_sli_ring *pring;
4205 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4206 "0325 Reset HBA Data: x%x x%x\n",
4207 phba->pport->port_state, psli->sli_flag);
4209 /* perform board reset */
4210 phba->fc_eventTag = 0;
4211 phba->link_events = 0;
4212 phba->pport->fc_myDID = 0;
4213 phba->pport->fc_prevDID = 0;
4215 /* Turn off parity checking and serr during the physical reset */
4216 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
4217 pci_write_config_word(phba->pcidev, PCI_COMMAND,
4219 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4221 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
4223 /* Now toggle INITFF bit in the Host Control Register */
4224 writel(HC_INITFF, phba->HCregaddr);
4226 readl(phba->HCregaddr); /* flush */
4227 writel(0, phba->HCregaddr);
4228 readl(phba->HCregaddr); /* flush */
4230 /* Restore PCI cmd register */
4231 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
4233 /* Initialize relevant SLI info */
4234 for (i = 0; i < psli->num_rings; i++) {
4235 pring = &psli->sli3_ring[i];
4237 pring->sli.sli3.rspidx = 0;
4238 pring->sli.sli3.next_cmdidx = 0;
4239 pring->sli.sli3.local_getidx = 0;
4240 pring->sli.sli3.cmdidx = 0;
4241 pring->missbufcnt = 0;
4244 phba->link_state = LPFC_WARM_START;
4249 * lpfc_sli4_brdreset - Reset a sli-4 HBA
4250 * @phba: Pointer to HBA context object.
4252 * This function resets a SLI4 HBA. This function disables PCI layer parity
4253 * checking during resets the device. The caller is not required to hold
4256 * This function returns 0 always.
4259 lpfc_sli4_brdreset(struct lpfc_hba *phba)
4261 struct lpfc_sli *psli = &phba->sli;
4266 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4267 "0295 Reset HBA Data: x%x x%x x%x\n",
4268 phba->pport->port_state, psli->sli_flag,
4271 /* perform board reset */
4272 phba->fc_eventTag = 0;
4273 phba->link_events = 0;
4274 phba->pport->fc_myDID = 0;
4275 phba->pport->fc_prevDID = 0;
4277 spin_lock_irq(&phba->hbalock);
4278 psli->sli_flag &= ~(LPFC_PROCESS_LA);
4279 phba->fcf.fcf_flag = 0;
4280 spin_unlock_irq(&phba->hbalock);
4282 /* SLI4 INTF 2: if FW dump is being taken skip INIT_PORT */
4283 if (phba->hba_flag & HBA_FW_DUMP_OP) {
4284 phba->hba_flag &= ~HBA_FW_DUMP_OP;
4288 /* Now physically reset the device */
4289 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4290 "0389 Performing PCI function reset!\n");
4292 /* Turn off parity checking and serr during the physical reset */
4293 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
4294 pci_write_config_word(phba->pcidev, PCI_COMMAND, (cfg_value &
4295 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4297 /* Perform FCoE PCI function reset before freeing queue memory */
4298 rc = lpfc_pci_function_reset(phba);
4299 lpfc_sli4_queue_destroy(phba);
4301 /* Restore PCI cmd register */
4302 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
4308 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
4309 * @phba: Pointer to HBA context object.
4311 * This function is called in the SLI initialization code path to
4312 * restart the HBA. The caller is not required to hold any lock.
4313 * This function writes MBX_RESTART mailbox command to the SLIM and
4314 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
4315 * function to free any pending commands. The function enables
4316 * POST only during the first initialization. The function returns zero.
4317 * The function does not guarantee completion of MBX_RESTART mailbox
4318 * command before the return of this function.
4321 lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
4324 struct lpfc_sli *psli;
4325 volatile uint32_t word0;
4326 void __iomem *to_slim;
4327 uint32_t hba_aer_enabled;
4329 spin_lock_irq(&phba->hbalock);
4331 /* Take PCIe device Advanced Error Reporting (AER) state */
4332 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4337 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4338 "0337 Restart HBA Data: x%x x%x\n",
4339 phba->pport->port_state, psli->sli_flag);
4342 mb = (MAILBOX_t *) &word0;
4343 mb->mbxCommand = MBX_RESTART;
4346 lpfc_reset_barrier(phba);
4348 to_slim = phba->MBslimaddr;
4349 writel(*(uint32_t *) mb, to_slim);
4350 readl(to_slim); /* flush */
4352 /* Only skip post after fc_ffinit is completed */
4353 if (phba->pport->port_state)
4354 word0 = 1; /* This is really setting up word1 */
4356 word0 = 0; /* This is really setting up word1 */
4357 to_slim = phba->MBslimaddr + sizeof (uint32_t);
4358 writel(*(uint32_t *) mb, to_slim);
4359 readl(to_slim); /* flush */
4361 lpfc_sli_brdreset(phba);
4362 phba->pport->stopped = 0;
4363 phba->link_state = LPFC_INIT_START;
4365 spin_unlock_irq(&phba->hbalock);
4367 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4368 psli->stats_start = get_seconds();
4370 /* Give the INITFF and Post time to settle. */
4373 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4374 if (hba_aer_enabled)
4375 pci_disable_pcie_error_reporting(phba->pcidev);
4377 lpfc_hba_down_post(phba);
4383 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
4384 * @phba: Pointer to HBA context object.
4386 * This function is called in the SLI initialization code path to restart
4387 * a SLI4 HBA. The caller is not required to hold any lock.
4388 * At the end of the function, it calls lpfc_hba_down_post function to
4389 * free any pending commands.
4392 lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
4394 struct lpfc_sli *psli = &phba->sli;
4395 uint32_t hba_aer_enabled;
4399 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4400 "0296 Restart HBA Data: x%x x%x\n",
4401 phba->pport->port_state, psli->sli_flag);
4403 /* Take PCIe device Advanced Error Reporting (AER) state */
4404 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4406 rc = lpfc_sli4_brdreset(phba);
4408 spin_lock_irq(&phba->hbalock);
4409 phba->pport->stopped = 0;
4410 phba->link_state = LPFC_INIT_START;
4412 spin_unlock_irq(&phba->hbalock);
4414 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4415 psli->stats_start = get_seconds();
4417 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4418 if (hba_aer_enabled)
4419 pci_disable_pcie_error_reporting(phba->pcidev);
4421 lpfc_hba_down_post(phba);
4427 * lpfc_sli_brdrestart - Wrapper func for restarting hba
4428 * @phba: Pointer to HBA context object.
4430 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
4431 * API jump table function pointer from the lpfc_hba struct.
4434 lpfc_sli_brdrestart(struct lpfc_hba *phba)
4436 return phba->lpfc_sli_brdrestart(phba);
4440 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
4441 * @phba: Pointer to HBA context object.
4443 * This function is called after a HBA restart to wait for successful
4444 * restart of the HBA. Successful restart of the HBA is indicated by
4445 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
4446 * iteration, the function will restart the HBA again. The function returns
4447 * zero if HBA successfully restarted else returns negative error code.
4450 lpfc_sli_chipset_init(struct lpfc_hba *phba)
4452 uint32_t status, i = 0;
4454 /* Read the HBA Host Status Register */
4455 if (lpfc_readl(phba->HSregaddr, &status))
4458 /* Check status register to see what current state is */
4460 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
4462 /* Check every 10ms for 10 retries, then every 100ms for 90
4463 * retries, then every 1 sec for 50 retires for a total of
4464 * ~60 seconds before reset the board again and check every
4465 * 1 sec for 50 retries. The up to 60 seconds before the
4466 * board ready is required by the Falcon FIPS zeroization
4467 * complete, and any reset the board in between shall cause
4468 * restart of zeroization, further delay the board ready.
4471 /* Adapter failed to init, timeout, status reg
4473 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4474 "0436 Adapter failed to init, "
4475 "timeout, status reg x%x, "
4476 "FW Data: A8 x%x AC x%x\n", status,
4477 readl(phba->MBslimaddr + 0xa8),
4478 readl(phba->MBslimaddr + 0xac));
4479 phba->link_state = LPFC_HBA_ERROR;
4483 /* Check to see if any errors occurred during init */
4484 if (status & HS_FFERM) {
4485 /* ERROR: During chipset initialization */
4486 /* Adapter failed to init, chipset, status reg
4488 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4489 "0437 Adapter failed to init, "
4490 "chipset, status reg x%x, "
4491 "FW Data: A8 x%x AC x%x\n", status,
4492 readl(phba->MBslimaddr + 0xa8),
4493 readl(phba->MBslimaddr + 0xac));
4494 phba->link_state = LPFC_HBA_ERROR;
4507 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4508 lpfc_sli_brdrestart(phba);
4510 /* Read the HBA Host Status Register */
4511 if (lpfc_readl(phba->HSregaddr, &status))
4515 /* Check to see if any errors occurred during init */
4516 if (status & HS_FFERM) {
4517 /* ERROR: During chipset initialization */
4518 /* Adapter failed to init, chipset, status reg <status> */
4519 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4520 "0438 Adapter failed to init, chipset, "
4522 "FW Data: A8 x%x AC x%x\n", status,
4523 readl(phba->MBslimaddr + 0xa8),
4524 readl(phba->MBslimaddr + 0xac));
4525 phba->link_state = LPFC_HBA_ERROR;
4529 /* Clear all interrupt enable conditions */
4530 writel(0, phba->HCregaddr);
4531 readl(phba->HCregaddr); /* flush */
4533 /* setup host attn register */
4534 writel(0xffffffff, phba->HAregaddr);
4535 readl(phba->HAregaddr); /* flush */
4540 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
4542 * This function calculates and returns the number of HBQs required to be
4546 lpfc_sli_hbq_count(void)
4548 return ARRAY_SIZE(lpfc_hbq_defs);
4552 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
4554 * This function adds the number of hbq entries in every HBQ to get
4555 * the total number of hbq entries required for the HBA and returns
4559 lpfc_sli_hbq_entry_count(void)
4561 int hbq_count = lpfc_sli_hbq_count();
4565 for (i = 0; i < hbq_count; ++i)
4566 count += lpfc_hbq_defs[i]->entry_count;
4571 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
4573 * This function calculates amount of memory required for all hbq entries
4574 * to be configured and returns the total memory required.
4577 lpfc_sli_hbq_size(void)
4579 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
4583 * lpfc_sli_hbq_setup - configure and initialize HBQs
4584 * @phba: Pointer to HBA context object.
4586 * This function is called during the SLI initialization to configure
4587 * all the HBQs and post buffers to the HBQ. The caller is not
4588 * required to hold any locks. This function will return zero if successful
4589 * else it will return negative error code.
4592 lpfc_sli_hbq_setup(struct lpfc_hba *phba)
4594 int hbq_count = lpfc_sli_hbq_count();
4598 uint32_t hbq_entry_index;
4600 /* Get a Mailbox buffer to setup mailbox
4601 * commands for HBA initialization
4603 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4610 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
4611 phba->link_state = LPFC_INIT_MBX_CMDS;
4612 phba->hbq_in_use = 1;
4614 hbq_entry_index = 0;
4615 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
4616 phba->hbqs[hbqno].next_hbqPutIdx = 0;
4617 phba->hbqs[hbqno].hbqPutIdx = 0;
4618 phba->hbqs[hbqno].local_hbqGetIdx = 0;
4619 phba->hbqs[hbqno].entry_count =
4620 lpfc_hbq_defs[hbqno]->entry_count;
4621 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
4622 hbq_entry_index, pmb);
4623 hbq_entry_index += phba->hbqs[hbqno].entry_count;
4625 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
4626 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
4627 mbxStatus <status>, ring <num> */
4629 lpfc_printf_log(phba, KERN_ERR,
4630 LOG_SLI | LOG_VPORT,
4631 "1805 Adapter failed to init. "
4632 "Data: x%x x%x x%x\n",
4634 pmbox->mbxStatus, hbqno);
4636 phba->link_state = LPFC_HBA_ERROR;
4637 mempool_free(pmb, phba->mbox_mem_pool);
4641 phba->hbq_count = hbq_count;
4643 mempool_free(pmb, phba->mbox_mem_pool);
4645 /* Initially populate or replenish the HBQs */
4646 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
4647 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
4652 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
4653 * @phba: Pointer to HBA context object.
4655 * This function is called during the SLI initialization to configure
4656 * all the HBQs and post buffers to the HBQ. The caller is not
4657 * required to hold any locks. This function will return zero if successful
4658 * else it will return negative error code.
4661 lpfc_sli4_rb_setup(struct lpfc_hba *phba)
4663 phba->hbq_in_use = 1;
4664 phba->hbqs[LPFC_ELS_HBQ].entry_count =
4665 lpfc_hbq_defs[LPFC_ELS_HBQ]->entry_count;
4666 phba->hbq_count = 1;
4667 lpfc_sli_hbqbuf_init_hbqs(phba, LPFC_ELS_HBQ);
4668 /* Initially populate or replenish the HBQs */
4673 * lpfc_sli_config_port - Issue config port mailbox command
4674 * @phba: Pointer to HBA context object.
4675 * @sli_mode: sli mode - 2/3
4677 * This function is called by the sli intialization code path
4678 * to issue config_port mailbox command. This function restarts the
4679 * HBA firmware and issues a config_port mailbox command to configure
4680 * the SLI interface in the sli mode specified by sli_mode
4681 * variable. The caller is not required to hold any locks.
4682 * The function returns 0 if successful, else returns negative error
4686 lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
4689 uint32_t resetcount = 0, rc = 0, done = 0;
4691 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4693 phba->link_state = LPFC_HBA_ERROR;
4697 phba->sli_rev = sli_mode;
4698 while (resetcount < 2 && !done) {
4699 spin_lock_irq(&phba->hbalock);
4700 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
4701 spin_unlock_irq(&phba->hbalock);
4702 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4703 lpfc_sli_brdrestart(phba);
4704 rc = lpfc_sli_chipset_init(phba);
4708 spin_lock_irq(&phba->hbalock);
4709 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4710 spin_unlock_irq(&phba->hbalock);
4713 /* Call pre CONFIG_PORT mailbox command initialization. A
4714 * value of 0 means the call was successful. Any other
4715 * nonzero value is a failure, but if ERESTART is returned,
4716 * the driver may reset the HBA and try again.
4718 rc = lpfc_config_port_prep(phba);
4719 if (rc == -ERESTART) {
4720 phba->link_state = LPFC_LINK_UNKNOWN;
4725 phba->link_state = LPFC_INIT_MBX_CMDS;
4726 lpfc_config_port(phba, pmb);
4727 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
4728 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
4729 LPFC_SLI3_HBQ_ENABLED |
4730 LPFC_SLI3_CRP_ENABLED |
4731 LPFC_SLI3_BG_ENABLED |
4732 LPFC_SLI3_DSS_ENABLED);
4733 if (rc != MBX_SUCCESS) {
4734 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4735 "0442 Adapter failed to init, mbxCmd x%x "
4736 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
4737 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
4738 spin_lock_irq(&phba->hbalock);
4739 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
4740 spin_unlock_irq(&phba->hbalock);
4743 /* Allow asynchronous mailbox command to go through */
4744 spin_lock_irq(&phba->hbalock);
4745 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
4746 spin_unlock_irq(&phba->hbalock);
4749 if ((pmb->u.mb.un.varCfgPort.casabt == 1) &&
4750 (pmb->u.mb.un.varCfgPort.gasabt == 0))
4751 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4752 "3110 Port did not grant ASABT\n");
4757 goto do_prep_failed;
4759 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
4760 if (!pmb->u.mb.un.varCfgPort.cMA) {
4762 goto do_prep_failed;
4764 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
4765 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
4766 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
4767 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
4768 phba->max_vpi : phba->max_vports;
4772 phba->fips_level = 0;
4773 phba->fips_spec_rev = 0;
4774 if (pmb->u.mb.un.varCfgPort.gdss) {
4775 phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
4776 phba->fips_level = pmb->u.mb.un.varCfgPort.fips_level;
4777 phba->fips_spec_rev = pmb->u.mb.un.varCfgPort.fips_rev;
4778 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4779 "2850 Security Crypto Active. FIPS x%d "
4781 phba->fips_level, phba->fips_spec_rev);
4783 if (pmb->u.mb.un.varCfgPort.sec_err) {
4784 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4785 "2856 Config Port Security Crypto "
4787 pmb->u.mb.un.varCfgPort.sec_err);
4789 if (pmb->u.mb.un.varCfgPort.gerbm)
4790 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
4791 if (pmb->u.mb.un.varCfgPort.gcrp)
4792 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
4794 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
4795 phba->port_gp = phba->mbox->us.s3_pgp.port;
4797 if (phba->cfg_enable_bg) {
4798 if (pmb->u.mb.un.varCfgPort.gbg)
4799 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
4801 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4802 "0443 Adapter did not grant "
4806 phba->hbq_get = NULL;
4807 phba->port_gp = phba->mbox->us.s2.port;
4811 mempool_free(pmb, phba->mbox_mem_pool);
4817 * lpfc_sli_hba_setup - SLI intialization function
4818 * @phba: Pointer to HBA context object.
4820 * This function is the main SLI intialization function. This function
4821 * is called by the HBA intialization code, HBA reset code and HBA
4822 * error attention handler code. Caller is not required to hold any
4823 * locks. This function issues config_port mailbox command to configure
4824 * the SLI, setup iocb rings and HBQ rings. In the end the function
4825 * calls the config_port_post function to issue init_link mailbox
4826 * command and to start the discovery. The function will return zero
4827 * if successful, else it will return negative error code.
4830 lpfc_sli_hba_setup(struct lpfc_hba *phba)
4836 switch (phba->cfg_sli_mode) {
4838 if (phba->cfg_enable_npiv) {
4839 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4840 "1824 NPIV enabled: Override sli_mode "
4841 "parameter (%d) to auto (0).\n",
4842 phba->cfg_sli_mode);
4851 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4852 "1819 Unrecognized sli_mode parameter: %d.\n",
4853 phba->cfg_sli_mode);
4857 phba->fcp_embed_io = 0; /* SLI4 FC support only */
4859 rc = lpfc_sli_config_port(phba, mode);
4861 if (rc && phba->cfg_sli_mode == 3)
4862 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4863 "1820 Unable to select SLI-3. "
4864 "Not supported by adapter.\n");
4865 if (rc && mode != 2)
4866 rc = lpfc_sli_config_port(phba, 2);
4867 else if (rc && mode == 2)
4868 rc = lpfc_sli_config_port(phba, 3);
4870 goto lpfc_sli_hba_setup_error;
4872 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4873 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
4874 rc = pci_enable_pcie_error_reporting(phba->pcidev);
4876 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4877 "2709 This device supports "
4878 "Advanced Error Reporting (AER)\n");
4879 spin_lock_irq(&phba->hbalock);
4880 phba->hba_flag |= HBA_AER_ENABLED;
4881 spin_unlock_irq(&phba->hbalock);
4883 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4884 "2708 This device does not support "
4885 "Advanced Error Reporting (AER): %d\n",
4887 phba->cfg_aer_support = 0;
4891 if (phba->sli_rev == 3) {
4892 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
4893 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
4895 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
4896 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
4897 phba->sli3_options = 0;
4900 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4901 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
4902 phba->sli_rev, phba->max_vpi);
4903 rc = lpfc_sli_ring_map(phba);
4906 goto lpfc_sli_hba_setup_error;
4908 /* Initialize VPIs. */
4909 if (phba->sli_rev == LPFC_SLI_REV3) {
4911 * The VPI bitmask and physical ID array are allocated
4912 * and initialized once only - at driver load. A port
4913 * reset doesn't need to reinitialize this memory.
4915 if ((phba->vpi_bmask == NULL) && (phba->vpi_ids == NULL)) {
4916 longs = (phba->max_vpi + BITS_PER_LONG) / BITS_PER_LONG;
4917 phba->vpi_bmask = kzalloc(longs * sizeof(unsigned long),
4919 if (!phba->vpi_bmask) {
4921 goto lpfc_sli_hba_setup_error;
4924 phba->vpi_ids = kzalloc(
4925 (phba->max_vpi+1) * sizeof(uint16_t),
4927 if (!phba->vpi_ids) {
4928 kfree(phba->vpi_bmask);
4930 goto lpfc_sli_hba_setup_error;
4932 for (i = 0; i < phba->max_vpi; i++)
4933 phba->vpi_ids[i] = i;
4938 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
4939 rc = lpfc_sli_hbq_setup(phba);
4941 goto lpfc_sli_hba_setup_error;
4943 spin_lock_irq(&phba->hbalock);
4944 phba->sli.sli_flag |= LPFC_PROCESS_LA;
4945 spin_unlock_irq(&phba->hbalock);
4947 rc = lpfc_config_port_post(phba);
4949 goto lpfc_sli_hba_setup_error;
4953 lpfc_sli_hba_setup_error:
4954 phba->link_state = LPFC_HBA_ERROR;
4955 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4956 "0445 Firmware initialization failed\n");
4961 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
4962 * @phba: Pointer to HBA context object.
4963 * @mboxq: mailbox pointer.
4964 * This function issue a dump mailbox command to read config region
4965 * 23 and parse the records in the region and populate driver
4969 lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba)
4971 LPFC_MBOXQ_t *mboxq;
4972 struct lpfc_dmabuf *mp;
4973 struct lpfc_mqe *mqe;
4974 uint32_t data_length;
4977 /* Program the default value of vlan_id and fc_map */
4978 phba->valid_vlan = 0;
4979 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4980 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4981 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4983 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4987 mqe = &mboxq->u.mqe;
4988 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq)) {
4990 goto out_free_mboxq;
4993 mp = (struct lpfc_dmabuf *) mboxq->context1;
4994 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4996 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4997 "(%d):2571 Mailbox cmd x%x Status x%x "
4998 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4999 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
5000 "CQ: x%x x%x x%x x%x\n",
5001 mboxq->vport ? mboxq->vport->vpi : 0,
5002 bf_get(lpfc_mqe_command, mqe),
5003 bf_get(lpfc_mqe_status, mqe),
5004 mqe->un.mb_words[0], mqe->un.mb_words[1],
5005 mqe->un.mb_words[2], mqe->un.mb_words[3],
5006 mqe->un.mb_words[4], mqe->un.mb_words[5],
5007 mqe->un.mb_words[6], mqe->un.mb_words[7],
5008 mqe->un.mb_words[8], mqe->un.mb_words[9],
5009 mqe->un.mb_words[10], mqe->un.mb_words[11],
5010 mqe->un.mb_words[12], mqe->un.mb_words[13],
5011 mqe->un.mb_words[14], mqe->un.mb_words[15],
5012 mqe->un.mb_words[16], mqe->un.mb_words[50],
5014 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
5015 mboxq->mcqe.trailer);
5018 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5021 goto out_free_mboxq;
5023 data_length = mqe->un.mb_words[5];
5024 if (data_length > DMP_RGN23_SIZE) {
5025 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5028 goto out_free_mboxq;
5031 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
5032 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5037 mempool_free(mboxq, phba->mbox_mem_pool);
5042 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
5043 * @phba: pointer to lpfc hba data structure.
5044 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
5045 * @vpd: pointer to the memory to hold resulting port vpd data.
5046 * @vpd_size: On input, the number of bytes allocated to @vpd.
5047 * On output, the number of data bytes in @vpd.
5049 * This routine executes a READ_REV SLI4 mailbox command. In
5050 * addition, this routine gets the port vpd data.
5054 * -ENOMEM - could not allocated memory.
5057 lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
5058 uint8_t *vpd, uint32_t *vpd_size)
5062 struct lpfc_dmabuf *dmabuf;
5063 struct lpfc_mqe *mqe;
5065 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5070 * Get a DMA buffer for the vpd data resulting from the READ_REV
5073 dma_size = *vpd_size;
5074 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, dma_size,
5075 &dmabuf->phys, GFP_KERNEL);
5076 if (!dmabuf->virt) {
5082 * The SLI4 implementation of READ_REV conflicts at word1,
5083 * bits 31:16 and SLI4 adds vpd functionality not present
5084 * in SLI3. This code corrects the conflicts.
5086 lpfc_read_rev(phba, mboxq);
5087 mqe = &mboxq->u.mqe;
5088 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
5089 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
5090 mqe->un.read_rev.word1 &= 0x0000FFFF;
5091 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
5092 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
5094 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5096 dma_free_coherent(&phba->pcidev->dev, dma_size,
5097 dmabuf->virt, dmabuf->phys);
5103 * The available vpd length cannot be bigger than the
5104 * DMA buffer passed to the port. Catch the less than
5105 * case and update the caller's size.
5107 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
5108 *vpd_size = mqe->un.read_rev.avail_vpd_len;
5110 memcpy(vpd, dmabuf->virt, *vpd_size);
5112 dma_free_coherent(&phba->pcidev->dev, dma_size,
5113 dmabuf->virt, dmabuf->phys);
5119 * lpfc_sli4_retrieve_pport_name - Retrieve SLI4 device physical port name
5120 * @phba: pointer to lpfc hba data structure.
5122 * This routine retrieves SLI4 device physical port name this PCI function
5127 * otherwise - failed to retrieve physical port name
5130 lpfc_sli4_retrieve_pport_name(struct lpfc_hba *phba)
5132 LPFC_MBOXQ_t *mboxq;
5133 struct lpfc_mbx_get_cntl_attributes *mbx_cntl_attr;
5134 struct lpfc_controller_attribute *cntl_attr;
5135 struct lpfc_mbx_get_port_name *get_port_name;
5136 void *virtaddr = NULL;
5137 uint32_t alloclen, reqlen;
5138 uint32_t shdr_status, shdr_add_status;
5139 union lpfc_sli4_cfg_shdr *shdr;
5140 char cport_name = 0;
5143 /* We assume nothing at this point */
5144 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
5145 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_NON;
5147 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5150 /* obtain link type and link number via READ_CONFIG */
5151 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
5152 lpfc_sli4_read_config(phba);
5153 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL)
5154 goto retrieve_ppname;
5156 /* obtain link type and link number via COMMON_GET_CNTL_ATTRIBUTES */
5157 reqlen = sizeof(struct lpfc_mbx_get_cntl_attributes);
5158 alloclen = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5159 LPFC_MBOX_OPCODE_GET_CNTL_ATTRIBUTES, reqlen,
5160 LPFC_SLI4_MBX_NEMBED);
5161 if (alloclen < reqlen) {
5162 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5163 "3084 Allocated DMA memory size (%d) is "
5164 "less than the requested DMA memory size "
5165 "(%d)\n", alloclen, reqlen);
5167 goto out_free_mboxq;
5169 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5170 virtaddr = mboxq->sge_array->addr[0];
5171 mbx_cntl_attr = (struct lpfc_mbx_get_cntl_attributes *)virtaddr;
5172 shdr = &mbx_cntl_attr->cfg_shdr;
5173 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5174 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5175 if (shdr_status || shdr_add_status || rc) {
5176 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5177 "3085 Mailbox x%x (x%x/x%x) failed, "
5178 "rc:x%x, status:x%x, add_status:x%x\n",
5179 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5180 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
5181 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
5182 rc, shdr_status, shdr_add_status);
5184 goto out_free_mboxq;
5186 cntl_attr = &mbx_cntl_attr->cntl_attr;
5187 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
5188 phba->sli4_hba.lnk_info.lnk_tp =
5189 bf_get(lpfc_cntl_attr_lnk_type, cntl_attr);
5190 phba->sli4_hba.lnk_info.lnk_no =
5191 bf_get(lpfc_cntl_attr_lnk_numb, cntl_attr);
5192 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5193 "3086 lnk_type:%d, lnk_numb:%d\n",
5194 phba->sli4_hba.lnk_info.lnk_tp,
5195 phba->sli4_hba.lnk_info.lnk_no);
5198 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5199 LPFC_MBOX_OPCODE_GET_PORT_NAME,
5200 sizeof(struct lpfc_mbx_get_port_name) -
5201 sizeof(struct lpfc_sli4_cfg_mhdr),
5202 LPFC_SLI4_MBX_EMBED);
5203 get_port_name = &mboxq->u.mqe.un.get_port_name;
5204 shdr = (union lpfc_sli4_cfg_shdr *)&get_port_name->header.cfg_shdr;
5205 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_OPCODE_VERSION_1);
5206 bf_set(lpfc_mbx_get_port_name_lnk_type, &get_port_name->u.request,
5207 phba->sli4_hba.lnk_info.lnk_tp);
5208 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5209 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5210 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5211 if (shdr_status || shdr_add_status || rc) {
5212 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5213 "3087 Mailbox x%x (x%x/x%x) failed: "
5214 "rc:x%x, status:x%x, add_status:x%x\n",
5215 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5216 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
5217 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
5218 rc, shdr_status, shdr_add_status);
5220 goto out_free_mboxq;
5222 switch (phba->sli4_hba.lnk_info.lnk_no) {
5223 case LPFC_LINK_NUMBER_0:
5224 cport_name = bf_get(lpfc_mbx_get_port_name_name0,
5225 &get_port_name->u.response);
5226 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5228 case LPFC_LINK_NUMBER_1:
5229 cport_name = bf_get(lpfc_mbx_get_port_name_name1,
5230 &get_port_name->u.response);
5231 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5233 case LPFC_LINK_NUMBER_2:
5234 cport_name = bf_get(lpfc_mbx_get_port_name_name2,
5235 &get_port_name->u.response);
5236 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5238 case LPFC_LINK_NUMBER_3:
5239 cport_name = bf_get(lpfc_mbx_get_port_name_name3,
5240 &get_port_name->u.response);
5241 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5247 if (phba->sli4_hba.pport_name_sta == LPFC_SLI4_PPNAME_GET) {
5248 phba->Port[0] = cport_name;
5249 phba->Port[1] = '\0';
5250 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5251 "3091 SLI get port name: %s\n", phba->Port);
5255 if (rc != MBX_TIMEOUT) {
5256 if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
5257 lpfc_sli4_mbox_cmd_free(phba, mboxq);
5259 mempool_free(mboxq, phba->mbox_mem_pool);
5265 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
5266 * @phba: pointer to lpfc hba data structure.
5268 * This routine is called to explicitly arm the SLI4 device's completion and
5272 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
5276 lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM);
5277 lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM);
5278 if (phba->sli4_hba.nvmels_cq)
5279 lpfc_sli4_cq_release(phba->sli4_hba.nvmels_cq,
5282 if (phba->sli4_hba.fcp_cq)
5283 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++)
5284 lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[qidx],
5287 if (phba->sli4_hba.nvme_cq)
5288 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++)
5289 lpfc_sli4_cq_release(phba->sli4_hba.nvme_cq[qidx],
5293 lpfc_sli4_cq_release(phba->sli4_hba.oas_cq, LPFC_QUEUE_REARM);
5295 if (phba->sli4_hba.hba_eq)
5296 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++)
5297 lpfc_sli4_eq_release(phba->sli4_hba.hba_eq[qidx],
5300 if (phba->nvmet_support) {
5301 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) {
5302 lpfc_sli4_cq_release(
5303 phba->sli4_hba.nvmet_cqset[qidx],
5309 lpfc_sli4_eq_release(phba->sli4_hba.fof_eq, LPFC_QUEUE_REARM);
5313 * lpfc_sli4_get_avail_extnt_rsrc - Get available resource extent count.
5314 * @phba: Pointer to HBA context object.
5315 * @type: The resource extent type.
5316 * @extnt_count: buffer to hold port available extent count.
5317 * @extnt_size: buffer to hold element count per extent.
5319 * This function calls the port and retrievs the number of available
5320 * extents and their size for a particular extent type.
5322 * Returns: 0 if successful. Nonzero otherwise.
5325 lpfc_sli4_get_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type,
5326 uint16_t *extnt_count, uint16_t *extnt_size)
5331 struct lpfc_mbx_get_rsrc_extent_info *rsrc_info;
5334 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5338 /* Find out how many extents are available for this resource type */
5339 length = (sizeof(struct lpfc_mbx_get_rsrc_extent_info) -
5340 sizeof(struct lpfc_sli4_cfg_mhdr));
5341 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5342 LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO,
5343 length, LPFC_SLI4_MBX_EMBED);
5345 /* Send an extents count of 0 - the GET doesn't use it. */
5346 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5347 LPFC_SLI4_MBX_EMBED);
5353 if (!phba->sli4_hba.intr_enable)
5354 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5356 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5357 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5364 rsrc_info = &mbox->u.mqe.un.rsrc_extent_info;
5365 if (bf_get(lpfc_mbox_hdr_status,
5366 &rsrc_info->header.cfg_shdr.response)) {
5367 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5368 "2930 Failed to get resource extents "
5369 "Status 0x%x Add'l Status 0x%x\n",
5370 bf_get(lpfc_mbox_hdr_status,
5371 &rsrc_info->header.cfg_shdr.response),
5372 bf_get(lpfc_mbox_hdr_add_status,
5373 &rsrc_info->header.cfg_shdr.response));
5378 *extnt_count = bf_get(lpfc_mbx_get_rsrc_extent_info_cnt,
5380 *extnt_size = bf_get(lpfc_mbx_get_rsrc_extent_info_size,
5383 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5384 "3162 Retrieved extents type-%d from port: count:%d, "
5385 "size:%d\n", type, *extnt_count, *extnt_size);
5388 mempool_free(mbox, phba->mbox_mem_pool);
5393 * lpfc_sli4_chk_avail_extnt_rsrc - Check for available SLI4 resource extents.
5394 * @phba: Pointer to HBA context object.
5395 * @type: The extent type to check.
5397 * This function reads the current available extents from the port and checks
5398 * if the extent count or extent size has changed since the last access.
5399 * Callers use this routine post port reset to understand if there is a
5400 * extent reprovisioning requirement.
5403 * -Error: error indicates problem.
5404 * 1: Extent count or size has changed.
5408 lpfc_sli4_chk_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type)
5410 uint16_t curr_ext_cnt, rsrc_ext_cnt;
5411 uint16_t size_diff, rsrc_ext_size;
5413 struct lpfc_rsrc_blks *rsrc_entry;
5414 struct list_head *rsrc_blk_list = NULL;
5418 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5425 case LPFC_RSC_TYPE_FCOE_RPI:
5426 rsrc_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5428 case LPFC_RSC_TYPE_FCOE_VPI:
5429 rsrc_blk_list = &phba->lpfc_vpi_blk_list;
5431 case LPFC_RSC_TYPE_FCOE_XRI:
5432 rsrc_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5434 case LPFC_RSC_TYPE_FCOE_VFI:
5435 rsrc_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5441 list_for_each_entry(rsrc_entry, rsrc_blk_list, list) {
5443 if (rsrc_entry->rsrc_size != rsrc_ext_size)
5447 if (curr_ext_cnt != rsrc_ext_cnt || size_diff != 0)
5454 * lpfc_sli4_cfg_post_extnts -
5455 * @phba: Pointer to HBA context object.
5456 * @extnt_cnt - number of available extents.
5457 * @type - the extent type (rpi, xri, vfi, vpi).
5458 * @emb - buffer to hold either MBX_EMBED or MBX_NEMBED operation.
5459 * @mbox - pointer to the caller's allocated mailbox structure.
5461 * This function executes the extents allocation request. It also
5462 * takes care of the amount of memory needed to allocate or get the
5463 * allocated extents. It is the caller's responsibility to evaluate
5467 * -Error: Error value describes the condition found.
5471 lpfc_sli4_cfg_post_extnts(struct lpfc_hba *phba, uint16_t extnt_cnt,
5472 uint16_t type, bool *emb, LPFC_MBOXQ_t *mbox)
5477 uint32_t alloc_len, mbox_tmo;
5479 /* Calculate the total requested length of the dma memory */
5480 req_len = extnt_cnt * sizeof(uint16_t);
5483 * Calculate the size of an embedded mailbox. The uint32_t
5484 * accounts for extents-specific word.
5486 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
5490 * Presume the allocation and response will fit into an embedded
5491 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5493 *emb = LPFC_SLI4_MBX_EMBED;
5494 if (req_len > emb_len) {
5495 req_len = extnt_cnt * sizeof(uint16_t) +
5496 sizeof(union lpfc_sli4_cfg_shdr) +
5498 *emb = LPFC_SLI4_MBX_NEMBED;
5501 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5502 LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT,
5504 if (alloc_len < req_len) {
5505 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5506 "2982 Allocated DMA memory size (x%x) is "
5507 "less than the requested DMA memory "
5508 "size (x%x)\n", alloc_len, req_len);
5511 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, extnt_cnt, type, *emb);
5515 if (!phba->sli4_hba.intr_enable)
5516 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5518 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5519 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5528 * lpfc_sli4_alloc_extent - Allocate an SLI4 resource extent.
5529 * @phba: Pointer to HBA context object.
5530 * @type: The resource extent type to allocate.
5532 * This function allocates the number of elements for the specified
5536 lpfc_sli4_alloc_extent(struct lpfc_hba *phba, uint16_t type)
5539 uint16_t rsrc_id_cnt, rsrc_cnt, rsrc_size;
5540 uint16_t rsrc_id, rsrc_start, j, k;
5543 unsigned long longs;
5544 unsigned long *bmask;
5545 struct lpfc_rsrc_blks *rsrc_blks;
5548 struct lpfc_id_range *id_array = NULL;
5549 void *virtaddr = NULL;
5550 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5551 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5552 struct list_head *ext_blk_list;
5554 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5560 if ((rsrc_cnt == 0) || (rsrc_size == 0)) {
5561 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5562 "3009 No available Resource Extents "
5563 "for resource type 0x%x: Count: 0x%x, "
5564 "Size 0x%x\n", type, rsrc_cnt,
5569 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_INIT | LOG_SLI,
5570 "2903 Post resource extents type-0x%x: "
5571 "count:%d, size %d\n", type, rsrc_cnt, rsrc_size);
5573 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5577 rc = lpfc_sli4_cfg_post_extnts(phba, rsrc_cnt, type, &emb, mbox);
5584 * Figure out where the response is located. Then get local pointers
5585 * to the response data. The port does not guarantee to respond to
5586 * all extents counts request so update the local variable with the
5587 * allocated count from the port.
5589 if (emb == LPFC_SLI4_MBX_EMBED) {
5590 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
5591 id_array = &rsrc_ext->u.rsp.id[0];
5592 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
5594 virtaddr = mbox->sge_array->addr[0];
5595 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
5596 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
5597 id_array = &n_rsrc->id;
5600 longs = ((rsrc_cnt * rsrc_size) + BITS_PER_LONG - 1) / BITS_PER_LONG;
5601 rsrc_id_cnt = rsrc_cnt * rsrc_size;
5604 * Based on the resource size and count, correct the base and max
5607 length = sizeof(struct lpfc_rsrc_blks);
5609 case LPFC_RSC_TYPE_FCOE_RPI:
5610 phba->sli4_hba.rpi_bmask = kzalloc(longs *
5611 sizeof(unsigned long),
5613 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5617 phba->sli4_hba.rpi_ids = kzalloc(rsrc_id_cnt *
5620 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5621 kfree(phba->sli4_hba.rpi_bmask);
5627 * The next_rpi was initialized with the maximum available
5628 * count but the port may allocate a smaller number. Catch
5629 * that case and update the next_rpi.
5631 phba->sli4_hba.next_rpi = rsrc_id_cnt;
5633 /* Initialize local ptrs for common extent processing later. */
5634 bmask = phba->sli4_hba.rpi_bmask;
5635 ids = phba->sli4_hba.rpi_ids;
5636 ext_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5638 case LPFC_RSC_TYPE_FCOE_VPI:
5639 phba->vpi_bmask = kzalloc(longs *
5640 sizeof(unsigned long),
5642 if (unlikely(!phba->vpi_bmask)) {
5646 phba->vpi_ids = kzalloc(rsrc_id_cnt *
5649 if (unlikely(!phba->vpi_ids)) {
5650 kfree(phba->vpi_bmask);
5655 /* Initialize local ptrs for common extent processing later. */
5656 bmask = phba->vpi_bmask;
5657 ids = phba->vpi_ids;
5658 ext_blk_list = &phba->lpfc_vpi_blk_list;
5660 case LPFC_RSC_TYPE_FCOE_XRI:
5661 phba->sli4_hba.xri_bmask = kzalloc(longs *
5662 sizeof(unsigned long),
5664 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5668 phba->sli4_hba.max_cfg_param.xri_used = 0;
5669 phba->sli4_hba.xri_ids = kzalloc(rsrc_id_cnt *
5672 if (unlikely(!phba->sli4_hba.xri_ids)) {
5673 kfree(phba->sli4_hba.xri_bmask);
5678 /* Initialize local ptrs for common extent processing later. */
5679 bmask = phba->sli4_hba.xri_bmask;
5680 ids = phba->sli4_hba.xri_ids;
5681 ext_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5683 case LPFC_RSC_TYPE_FCOE_VFI:
5684 phba->sli4_hba.vfi_bmask = kzalloc(longs *
5685 sizeof(unsigned long),
5687 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5691 phba->sli4_hba.vfi_ids = kzalloc(rsrc_id_cnt *
5694 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5695 kfree(phba->sli4_hba.vfi_bmask);
5700 /* Initialize local ptrs for common extent processing later. */
5701 bmask = phba->sli4_hba.vfi_bmask;
5702 ids = phba->sli4_hba.vfi_ids;
5703 ext_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5706 /* Unsupported Opcode. Fail call. */
5710 ext_blk_list = NULL;
5715 * Complete initializing the extent configuration with the
5716 * allocated ids assigned to this function. The bitmask serves
5717 * as an index into the array and manages the available ids. The
5718 * array just stores the ids communicated to the port via the wqes.
5720 for (i = 0, j = 0, k = 0; i < rsrc_cnt; i++) {
5722 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_0,
5725 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_1,
5728 rsrc_blks = kzalloc(length, GFP_KERNEL);
5729 if (unlikely(!rsrc_blks)) {
5735 rsrc_blks->rsrc_start = rsrc_id;
5736 rsrc_blks->rsrc_size = rsrc_size;
5737 list_add_tail(&rsrc_blks->list, ext_blk_list);
5738 rsrc_start = rsrc_id;
5739 if ((type == LPFC_RSC_TYPE_FCOE_XRI) && (j == 0)) {
5740 phba->sli4_hba.scsi_xri_start = rsrc_start +
5741 lpfc_sli4_get_iocb_cnt(phba);
5742 phba->sli4_hba.nvme_xri_start =
5743 phba->sli4_hba.scsi_xri_start +
5744 phba->sli4_hba.scsi_xri_max;
5747 while (rsrc_id < (rsrc_start + rsrc_size)) {
5752 /* Entire word processed. Get next word.*/
5757 lpfc_sli4_mbox_cmd_free(phba, mbox);
5764 * lpfc_sli4_dealloc_extent - Deallocate an SLI4 resource extent.
5765 * @phba: Pointer to HBA context object.
5766 * @type: the extent's type.
5768 * This function deallocates all extents of a particular resource type.
5769 * SLI4 does not allow for deallocating a particular extent range. It
5770 * is the caller's responsibility to release all kernel memory resources.
5773 lpfc_sli4_dealloc_extent(struct lpfc_hba *phba, uint16_t type)
5776 uint32_t length, mbox_tmo = 0;
5778 struct lpfc_mbx_dealloc_rsrc_extents *dealloc_rsrc;
5779 struct lpfc_rsrc_blks *rsrc_blk, *rsrc_blk_next;
5781 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5786 * This function sends an embedded mailbox because it only sends the
5787 * the resource type. All extents of this type are released by the
5790 length = (sizeof(struct lpfc_mbx_dealloc_rsrc_extents) -
5791 sizeof(struct lpfc_sli4_cfg_mhdr));
5792 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5793 LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT,
5794 length, LPFC_SLI4_MBX_EMBED);
5796 /* Send an extents count of 0 - the dealloc doesn't use it. */
5797 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5798 LPFC_SLI4_MBX_EMBED);
5803 if (!phba->sli4_hba.intr_enable)
5804 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5806 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5807 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5814 dealloc_rsrc = &mbox->u.mqe.un.dealloc_rsrc_extents;
5815 if (bf_get(lpfc_mbox_hdr_status,
5816 &dealloc_rsrc->header.cfg_shdr.response)) {
5817 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5818 "2919 Failed to release resource extents "
5819 "for type %d - Status 0x%x Add'l Status 0x%x. "
5820 "Resource memory not released.\n",
5822 bf_get(lpfc_mbox_hdr_status,
5823 &dealloc_rsrc->header.cfg_shdr.response),
5824 bf_get(lpfc_mbox_hdr_add_status,
5825 &dealloc_rsrc->header.cfg_shdr.response));
5830 /* Release kernel memory resources for the specific type. */
5832 case LPFC_RSC_TYPE_FCOE_VPI:
5833 kfree(phba->vpi_bmask);
5834 kfree(phba->vpi_ids);
5835 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5836 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5837 &phba->lpfc_vpi_blk_list, list) {
5838 list_del_init(&rsrc_blk->list);
5841 phba->sli4_hba.max_cfg_param.vpi_used = 0;
5843 case LPFC_RSC_TYPE_FCOE_XRI:
5844 kfree(phba->sli4_hba.xri_bmask);
5845 kfree(phba->sli4_hba.xri_ids);
5846 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5847 &phba->sli4_hba.lpfc_xri_blk_list, list) {
5848 list_del_init(&rsrc_blk->list);
5852 case LPFC_RSC_TYPE_FCOE_VFI:
5853 kfree(phba->sli4_hba.vfi_bmask);
5854 kfree(phba->sli4_hba.vfi_ids);
5855 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5856 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5857 &phba->sli4_hba.lpfc_vfi_blk_list, list) {
5858 list_del_init(&rsrc_blk->list);
5862 case LPFC_RSC_TYPE_FCOE_RPI:
5863 /* RPI bitmask and physical id array are cleaned up earlier. */
5864 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5865 &phba->sli4_hba.lpfc_rpi_blk_list, list) {
5866 list_del_init(&rsrc_blk->list);
5874 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5877 mempool_free(mbox, phba->mbox_mem_pool);
5882 lpfc_set_features(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox,
5887 len = sizeof(struct lpfc_mbx_set_feature) -
5888 sizeof(struct lpfc_sli4_cfg_mhdr);
5889 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5890 LPFC_MBOX_OPCODE_SET_FEATURES, len,
5891 LPFC_SLI4_MBX_EMBED);
5894 case LPFC_SET_UE_RECOVERY:
5895 bf_set(lpfc_mbx_set_feature_UER,
5896 &mbox->u.mqe.un.set_feature, 1);
5897 mbox->u.mqe.un.set_feature.feature = LPFC_SET_UE_RECOVERY;
5898 mbox->u.mqe.un.set_feature.param_len = 8;
5900 case LPFC_SET_MDS_DIAGS:
5901 bf_set(lpfc_mbx_set_feature_mds,
5902 &mbox->u.mqe.un.set_feature, 1);
5903 bf_set(lpfc_mbx_set_feature_mds_deep_loopbk,
5904 &mbox->u.mqe.un.set_feature, 0);
5905 mbox->u.mqe.un.set_feature.feature = LPFC_SET_MDS_DIAGS;
5906 mbox->u.mqe.un.set_feature.param_len = 8;
5914 * lpfc_sli4_alloc_resource_identifiers - Allocate all SLI4 resource extents.
5915 * @phba: Pointer to HBA context object.
5917 * This function allocates all SLI4 resource identifiers.
5920 lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba *phba)
5922 int i, rc, error = 0;
5923 uint16_t count, base;
5924 unsigned long longs;
5926 if (!phba->sli4_hba.rpi_hdrs_in_use)
5927 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
5928 if (phba->sli4_hba.extents_in_use) {
5930 * The port supports resource extents. The XRI, VPI, VFI, RPI
5931 * resource extent count must be read and allocated before
5932 * provisioning the resource id arrays.
5934 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
5935 LPFC_IDX_RSRC_RDY) {
5937 * Extent-based resources are set - the driver could
5938 * be in a port reset. Figure out if any corrective
5939 * actions need to be taken.
5941 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5942 LPFC_RSC_TYPE_FCOE_VFI);
5945 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5946 LPFC_RSC_TYPE_FCOE_VPI);
5949 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5950 LPFC_RSC_TYPE_FCOE_XRI);
5953 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5954 LPFC_RSC_TYPE_FCOE_RPI);
5959 * It's possible that the number of resources
5960 * provided to this port instance changed between
5961 * resets. Detect this condition and reallocate
5962 * resources. Otherwise, there is no action.
5965 lpfc_printf_log(phba, KERN_INFO,
5966 LOG_MBOX | LOG_INIT,
5967 "2931 Detected extent resource "
5968 "change. Reallocating all "
5970 rc = lpfc_sli4_dealloc_extent(phba,
5971 LPFC_RSC_TYPE_FCOE_VFI);
5972 rc = lpfc_sli4_dealloc_extent(phba,
5973 LPFC_RSC_TYPE_FCOE_VPI);
5974 rc = lpfc_sli4_dealloc_extent(phba,
5975 LPFC_RSC_TYPE_FCOE_XRI);
5976 rc = lpfc_sli4_dealloc_extent(phba,
5977 LPFC_RSC_TYPE_FCOE_RPI);
5982 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
5986 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
5990 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
5994 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
5997 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
6002 * The port does not support resource extents. The XRI, VPI,
6003 * VFI, RPI resource ids were determined from READ_CONFIG.
6004 * Just allocate the bitmasks and provision the resource id
6005 * arrays. If a port reset is active, the resources don't
6006 * need any action - just exit.
6008 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
6009 LPFC_IDX_RSRC_RDY) {
6010 lpfc_sli4_dealloc_resource_identifiers(phba);
6011 lpfc_sli4_remove_rpis(phba);
6014 count = phba->sli4_hba.max_cfg_param.max_rpi;
6016 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6017 "3279 Invalid provisioning of "
6022 base = phba->sli4_hba.max_cfg_param.rpi_base;
6023 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6024 phba->sli4_hba.rpi_bmask = kzalloc(longs *
6025 sizeof(unsigned long),
6027 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
6031 phba->sli4_hba.rpi_ids = kzalloc(count *
6034 if (unlikely(!phba->sli4_hba.rpi_ids)) {
6036 goto free_rpi_bmask;
6039 for (i = 0; i < count; i++)
6040 phba->sli4_hba.rpi_ids[i] = base + i;
6043 count = phba->sli4_hba.max_cfg_param.max_vpi;
6045 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6046 "3280 Invalid provisioning of "
6051 base = phba->sli4_hba.max_cfg_param.vpi_base;
6052 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6053 phba->vpi_bmask = kzalloc(longs *
6054 sizeof(unsigned long),
6056 if (unlikely(!phba->vpi_bmask)) {
6060 phba->vpi_ids = kzalloc(count *
6063 if (unlikely(!phba->vpi_ids)) {
6065 goto free_vpi_bmask;
6068 for (i = 0; i < count; i++)
6069 phba->vpi_ids[i] = base + i;
6072 count = phba->sli4_hba.max_cfg_param.max_xri;
6074 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6075 "3281 Invalid provisioning of "
6080 base = phba->sli4_hba.max_cfg_param.xri_base;
6081 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6082 phba->sli4_hba.xri_bmask = kzalloc(longs *
6083 sizeof(unsigned long),
6085 if (unlikely(!phba->sli4_hba.xri_bmask)) {
6089 phba->sli4_hba.max_cfg_param.xri_used = 0;
6090 phba->sli4_hba.xri_ids = kzalloc(count *
6093 if (unlikely(!phba->sli4_hba.xri_ids)) {
6095 goto free_xri_bmask;
6098 for (i = 0; i < count; i++)
6099 phba->sli4_hba.xri_ids[i] = base + i;
6102 count = phba->sli4_hba.max_cfg_param.max_vfi;
6104 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6105 "3282 Invalid provisioning of "
6110 base = phba->sli4_hba.max_cfg_param.vfi_base;
6111 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6112 phba->sli4_hba.vfi_bmask = kzalloc(longs *
6113 sizeof(unsigned long),
6115 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
6119 phba->sli4_hba.vfi_ids = kzalloc(count *
6122 if (unlikely(!phba->sli4_hba.vfi_ids)) {
6124 goto free_vfi_bmask;
6127 for (i = 0; i < count; i++)
6128 phba->sli4_hba.vfi_ids[i] = base + i;
6131 * Mark all resources ready. An HBA reset doesn't need
6132 * to reset the initialization.
6134 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
6140 kfree(phba->sli4_hba.vfi_bmask);
6141 phba->sli4_hba.vfi_bmask = NULL;
6143 kfree(phba->sli4_hba.xri_ids);
6144 phba->sli4_hba.xri_ids = NULL;
6146 kfree(phba->sli4_hba.xri_bmask);
6147 phba->sli4_hba.xri_bmask = NULL;
6149 kfree(phba->vpi_ids);
6150 phba->vpi_ids = NULL;
6152 kfree(phba->vpi_bmask);
6153 phba->vpi_bmask = NULL;
6155 kfree(phba->sli4_hba.rpi_ids);
6156 phba->sli4_hba.rpi_ids = NULL;
6158 kfree(phba->sli4_hba.rpi_bmask);
6159 phba->sli4_hba.rpi_bmask = NULL;
6165 * lpfc_sli4_dealloc_resource_identifiers - Deallocate all SLI4 resource extents.
6166 * @phba: Pointer to HBA context object.
6168 * This function allocates the number of elements for the specified
6172 lpfc_sli4_dealloc_resource_identifiers(struct lpfc_hba *phba)
6174 if (phba->sli4_hba.extents_in_use) {
6175 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
6176 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
6177 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
6178 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
6180 kfree(phba->vpi_bmask);
6181 phba->sli4_hba.max_cfg_param.vpi_used = 0;
6182 kfree(phba->vpi_ids);
6183 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6184 kfree(phba->sli4_hba.xri_bmask);
6185 kfree(phba->sli4_hba.xri_ids);
6186 kfree(phba->sli4_hba.vfi_bmask);
6187 kfree(phba->sli4_hba.vfi_ids);
6188 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6189 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6196 * lpfc_sli4_get_allocated_extnts - Get the port's allocated extents.
6197 * @phba: Pointer to HBA context object.
6198 * @type: The resource extent type.
6199 * @extnt_count: buffer to hold port extent count response
6200 * @extnt_size: buffer to hold port extent size response.
6202 * This function calls the port to read the host allocated extents
6203 * for a particular type.
6206 lpfc_sli4_get_allocated_extnts(struct lpfc_hba *phba, uint16_t type,
6207 uint16_t *extnt_cnt, uint16_t *extnt_size)
6211 uint16_t curr_blks = 0;
6212 uint32_t req_len, emb_len;
6213 uint32_t alloc_len, mbox_tmo;
6214 struct list_head *blk_list_head;
6215 struct lpfc_rsrc_blks *rsrc_blk;
6217 void *virtaddr = NULL;
6218 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
6219 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
6220 union lpfc_sli4_cfg_shdr *shdr;
6223 case LPFC_RSC_TYPE_FCOE_VPI:
6224 blk_list_head = &phba->lpfc_vpi_blk_list;
6226 case LPFC_RSC_TYPE_FCOE_XRI:
6227 blk_list_head = &phba->sli4_hba.lpfc_xri_blk_list;
6229 case LPFC_RSC_TYPE_FCOE_VFI:
6230 blk_list_head = &phba->sli4_hba.lpfc_vfi_blk_list;
6232 case LPFC_RSC_TYPE_FCOE_RPI:
6233 blk_list_head = &phba->sli4_hba.lpfc_rpi_blk_list;
6239 /* Count the number of extents currently allocatd for this type. */
6240 list_for_each_entry(rsrc_blk, blk_list_head, list) {
6241 if (curr_blks == 0) {
6243 * The GET_ALLOCATED mailbox does not return the size,
6244 * just the count. The size should be just the size
6245 * stored in the current allocated block and all sizes
6246 * for an extent type are the same so set the return
6249 *extnt_size = rsrc_blk->rsrc_size;
6255 * Calculate the size of an embedded mailbox. The uint32_t
6256 * accounts for extents-specific word.
6258 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
6262 * Presume the allocation and response will fit into an embedded
6263 * mailbox. If not true, reconfigure to a non-embedded mailbox.
6265 emb = LPFC_SLI4_MBX_EMBED;
6267 if (req_len > emb_len) {
6268 req_len = curr_blks * sizeof(uint16_t) +
6269 sizeof(union lpfc_sli4_cfg_shdr) +
6271 emb = LPFC_SLI4_MBX_NEMBED;
6274 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6277 memset(mbox, 0, sizeof(LPFC_MBOXQ_t));
6279 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6280 LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT,
6282 if (alloc_len < req_len) {
6283 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6284 "2983 Allocated DMA memory size (x%x) is "
6285 "less than the requested DMA memory "
6286 "size (x%x)\n", alloc_len, req_len);
6290 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, curr_blks, type, emb);
6296 if (!phba->sli4_hba.intr_enable)
6297 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
6299 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
6300 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
6309 * Figure out where the response is located. Then get local pointers
6310 * to the response data. The port does not guarantee to respond to
6311 * all extents counts request so update the local variable with the
6312 * allocated count from the port.
6314 if (emb == LPFC_SLI4_MBX_EMBED) {
6315 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
6316 shdr = &rsrc_ext->header.cfg_shdr;
6317 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
6319 virtaddr = mbox->sge_array->addr[0];
6320 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
6321 shdr = &n_rsrc->cfg_shdr;
6322 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
6325 if (bf_get(lpfc_mbox_hdr_status, &shdr->response)) {
6326 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
6327 "2984 Failed to read allocated resources "
6328 "for type %d - Status 0x%x Add'l Status 0x%x.\n",
6330 bf_get(lpfc_mbox_hdr_status, &shdr->response),
6331 bf_get(lpfc_mbox_hdr_add_status, &shdr->response));
6336 lpfc_sli4_mbox_cmd_free(phba, mbox);
6341 * lpfc_sli4_repost_sgl_list - Repsot the buffers sgl pages as block
6342 * @phba: pointer to lpfc hba data structure.
6343 * @pring: Pointer to driver SLI ring object.
6344 * @sgl_list: linked link of sgl buffers to post
6345 * @cnt: number of linked list buffers
6347 * This routine walks the list of buffers that have been allocated and
6348 * repost them to the port by using SGL block post. This is needed after a
6349 * pci_function_reset/warm_start or start. It attempts to construct blocks
6350 * of buffer sgls which contains contiguous xris and uses the non-embedded
6351 * SGL block post mailbox commands to post them to the port. For single
6352 * buffer sgl with non-contiguous xri, if any, it shall use embedded SGL post
6353 * mailbox command for posting.
6355 * Returns: 0 = success, non-zero failure.
6358 lpfc_sli4_repost_sgl_list(struct lpfc_hba *phba,
6359 struct list_head *sgl_list, int cnt)
6361 struct lpfc_sglq *sglq_entry = NULL;
6362 struct lpfc_sglq *sglq_entry_next = NULL;
6363 struct lpfc_sglq *sglq_entry_first = NULL;
6364 int status, total_cnt;
6365 int post_cnt = 0, num_posted = 0, block_cnt = 0;
6366 int last_xritag = NO_XRI;
6367 LIST_HEAD(prep_sgl_list);
6368 LIST_HEAD(blck_sgl_list);
6369 LIST_HEAD(allc_sgl_list);
6370 LIST_HEAD(post_sgl_list);
6371 LIST_HEAD(free_sgl_list);
6373 spin_lock_irq(&phba->hbalock);
6374 spin_lock(&phba->sli4_hba.sgl_list_lock);
6375 list_splice_init(sgl_list, &allc_sgl_list);
6376 spin_unlock(&phba->sli4_hba.sgl_list_lock);
6377 spin_unlock_irq(&phba->hbalock);
6380 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
6381 &allc_sgl_list, list) {
6382 list_del_init(&sglq_entry->list);
6384 if ((last_xritag != NO_XRI) &&
6385 (sglq_entry->sli4_xritag != last_xritag + 1)) {
6386 /* a hole in xri block, form a sgl posting block */
6387 list_splice_init(&prep_sgl_list, &blck_sgl_list);
6388 post_cnt = block_cnt - 1;
6389 /* prepare list for next posting block */
6390 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6393 /* prepare list for next posting block */
6394 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6395 /* enough sgls for non-embed sgl mbox command */
6396 if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
6397 list_splice_init(&prep_sgl_list,
6399 post_cnt = block_cnt;
6405 /* keep track of last sgl's xritag */
6406 last_xritag = sglq_entry->sli4_xritag;
6408 /* end of repost sgl list condition for buffers */
6409 if (num_posted == total_cnt) {
6410 if (post_cnt == 0) {
6411 list_splice_init(&prep_sgl_list,
6413 post_cnt = block_cnt;
6414 } else if (block_cnt == 1) {
6415 status = lpfc_sli4_post_sgl(phba,
6416 sglq_entry->phys, 0,
6417 sglq_entry->sli4_xritag);
6419 /* successful, put sgl to posted list */
6420 list_add_tail(&sglq_entry->list,
6423 /* Failure, put sgl to free list */
6424 lpfc_printf_log(phba, KERN_WARNING,
6426 "3159 Failed to post "
6427 "sgl, xritag:x%x\n",
6428 sglq_entry->sli4_xritag);
6429 list_add_tail(&sglq_entry->list,
6436 /* continue until a nembed page worth of sgls */
6440 /* post the buffer list sgls as a block */
6441 status = lpfc_sli4_post_sgl_list(phba, &blck_sgl_list,
6445 /* success, put sgl list to posted sgl list */
6446 list_splice_init(&blck_sgl_list, &post_sgl_list);
6448 /* Failure, put sgl list to free sgl list */
6449 sglq_entry_first = list_first_entry(&blck_sgl_list,
6452 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6453 "3160 Failed to post sgl-list, "
6455 sglq_entry_first->sli4_xritag,
6456 (sglq_entry_first->sli4_xritag +
6458 list_splice_init(&blck_sgl_list, &free_sgl_list);
6459 total_cnt -= post_cnt;
6462 /* don't reset xirtag due to hole in xri block */
6464 last_xritag = NO_XRI;
6466 /* reset sgl post count for next round of posting */
6470 /* free the sgls failed to post */
6471 lpfc_free_sgl_list(phba, &free_sgl_list);
6473 /* push sgls posted to the available list */
6474 if (!list_empty(&post_sgl_list)) {
6475 spin_lock_irq(&phba->hbalock);
6476 spin_lock(&phba->sli4_hba.sgl_list_lock);
6477 list_splice_init(&post_sgl_list, sgl_list);
6478 spin_unlock(&phba->sli4_hba.sgl_list_lock);
6479 spin_unlock_irq(&phba->hbalock);
6481 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6482 "3161 Failure to post sgl to port.\n");
6486 /* return the number of XRIs actually posted */
6491 lpfc_set_host_data(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
6495 len = sizeof(struct lpfc_mbx_set_host_data) -
6496 sizeof(struct lpfc_sli4_cfg_mhdr);
6497 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6498 LPFC_MBOX_OPCODE_SET_HOST_DATA, len,
6499 LPFC_SLI4_MBX_EMBED);
6501 mbox->u.mqe.un.set_host_data.param_id = LPFC_SET_HOST_OS_DRIVER_VERSION;
6502 mbox->u.mqe.un.set_host_data.param_len =
6503 LPFC_HOST_OS_DRIVER_VERSION_SIZE;
6504 snprintf(mbox->u.mqe.un.set_host_data.data,
6505 LPFC_HOST_OS_DRIVER_VERSION_SIZE,
6506 "Linux %s v"LPFC_DRIVER_VERSION,
6507 (phba->hba_flag & HBA_FCOE_MODE) ? "FCoE" : "FC");
6511 * lpfc_sli4_hba_setup - SLI4 device intialization PCI function
6512 * @phba: Pointer to HBA context object.
6514 * This function is the main SLI4 device intialization PCI function. This
6515 * function is called by the HBA intialization code, HBA reset code and
6516 * HBA error attention handler code. Caller is not required to hold any
6520 lpfc_sli4_hba_setup(struct lpfc_hba *phba)
6523 LPFC_MBOXQ_t *mboxq;
6524 struct lpfc_mqe *mqe;
6527 uint32_t ftr_rsp = 0;
6528 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
6529 struct lpfc_vport *vport = phba->pport;
6530 struct lpfc_dmabuf *mp;
6531 struct lpfc_rqb *rqbp;
6533 /* Perform a PCI function reset to start from clean */
6534 rc = lpfc_pci_function_reset(phba);
6538 /* Check the HBA Host Status Register for readyness */
6539 rc = lpfc_sli4_post_status_check(phba);
6543 spin_lock_irq(&phba->hbalock);
6544 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
6545 spin_unlock_irq(&phba->hbalock);
6549 * Allocate a single mailbox container for initializing the
6552 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6556 /* Issue READ_REV to collect vpd and FW information. */
6557 vpd_size = SLI4_PAGE_SIZE;
6558 vpd = kzalloc(vpd_size, GFP_KERNEL);
6564 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
6570 mqe = &mboxq->u.mqe;
6571 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
6572 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev)) {
6573 phba->hba_flag |= HBA_FCOE_MODE;
6574 phba->fcp_embed_io = 0; /* SLI4 FC support only */
6576 phba->hba_flag &= ~HBA_FCOE_MODE;
6579 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
6581 phba->hba_flag |= HBA_FIP_SUPPORT;
6583 phba->hba_flag &= ~HBA_FIP_SUPPORT;
6585 phba->hba_flag &= ~HBA_FCP_IOQ_FLUSH;
6587 if (phba->sli_rev != LPFC_SLI_REV4) {
6588 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6589 "0376 READ_REV Error. SLI Level %d "
6590 "FCoE enabled %d\n",
6591 phba->sli_rev, phba->hba_flag & HBA_FCOE_MODE);
6598 * Continue initialization with default values even if driver failed
6599 * to read FCoE param config regions, only read parameters if the
6602 if (phba->hba_flag & HBA_FCOE_MODE &&
6603 lpfc_sli4_read_fcoe_params(phba))
6604 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_INIT,
6605 "2570 Failed to read FCoE parameters\n");
6608 * Retrieve sli4 device physical port name, failure of doing it
6609 * is considered as non-fatal.
6611 rc = lpfc_sli4_retrieve_pport_name(phba);
6613 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6614 "3080 Successful retrieving SLI4 device "
6615 "physical port name: %s.\n", phba->Port);
6618 * Evaluate the read rev and vpd data. Populate the driver
6619 * state with the results. If this routine fails, the failure
6620 * is not fatal as the driver will use generic values.
6622 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
6623 if (unlikely(!rc)) {
6624 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6625 "0377 Error %d parsing vpd. "
6626 "Using defaults.\n", rc);
6631 /* Save information as VPD data */
6632 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
6633 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
6634 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
6635 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
6637 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
6639 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
6641 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
6643 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
6644 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
6645 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
6646 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
6647 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
6648 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
6649 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6650 "(%d):0380 READ_REV Status x%x "
6651 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
6652 mboxq->vport ? mboxq->vport->vpi : 0,
6653 bf_get(lpfc_mqe_status, mqe),
6654 phba->vpd.rev.opFwName,
6655 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
6656 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
6658 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */
6659 rc = (phba->sli4_hba.max_cfg_param.max_xri >> 3);
6660 if (phba->pport->cfg_lun_queue_depth > rc) {
6661 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6662 "3362 LUN queue depth changed from %d to %d\n",
6663 phba->pport->cfg_lun_queue_depth, rc);
6664 phba->pport->cfg_lun_queue_depth = rc;
6667 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
6668 LPFC_SLI_INTF_IF_TYPE_0) {
6669 lpfc_set_features(phba, mboxq, LPFC_SET_UE_RECOVERY);
6670 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6671 if (rc == MBX_SUCCESS) {
6672 phba->hba_flag |= HBA_RECOVERABLE_UE;
6673 /* Set 1Sec interval to detect UE */
6674 phba->eratt_poll_interval = 1;
6675 phba->sli4_hba.ue_to_sr = bf_get(
6676 lpfc_mbx_set_feature_UESR,
6677 &mboxq->u.mqe.un.set_feature);
6678 phba->sli4_hba.ue_to_rp = bf_get(
6679 lpfc_mbx_set_feature_UERP,
6680 &mboxq->u.mqe.un.set_feature);
6684 if (phba->cfg_enable_mds_diags && phba->mds_diags_support) {
6685 /* Enable MDS Diagnostics only if the SLI Port supports it */
6686 lpfc_set_features(phba, mboxq, LPFC_SET_MDS_DIAGS);
6687 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6688 if (rc != MBX_SUCCESS)
6689 phba->mds_diags_support = 0;
6693 * Discover the port's supported feature set and match it against the
6696 lpfc_request_features(phba, mboxq);
6697 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6704 * The port must support FCP initiator mode as this is the
6705 * only mode running in the host.
6707 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
6708 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6709 "0378 No support for fcpi mode.\n");
6712 if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh, &mqe->un.req_ftrs))
6713 phba->sli3_options |= LPFC_SLI4_PERFH_ENABLED;
6715 phba->sli3_options &= ~LPFC_SLI4_PERFH_ENABLED;
6717 * If the port cannot support the host's requested features
6718 * then turn off the global config parameters to disable the
6719 * feature in the driver. This is not a fatal error.
6721 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
6722 if (phba->cfg_enable_bg) {
6723 if (bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))
6724 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
6729 if (phba->max_vpi && phba->cfg_enable_npiv &&
6730 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6734 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6735 "0379 Feature Mismatch Data: x%08x %08x "
6736 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
6737 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
6738 phba->cfg_enable_npiv, phba->max_vpi);
6739 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
6740 phba->cfg_enable_bg = 0;
6741 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6742 phba->cfg_enable_npiv = 0;
6745 /* These SLI3 features are assumed in SLI4 */
6746 spin_lock_irq(&phba->hbalock);
6747 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
6748 spin_unlock_irq(&phba->hbalock);
6751 * Allocate all resources (xri,rpi,vpi,vfi) now. Subsequent
6752 * calls depends on these resources to complete port setup.
6754 rc = lpfc_sli4_alloc_resource_identifiers(phba);
6756 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6757 "2920 Failed to alloc Resource IDs "
6762 lpfc_set_host_data(phba, mboxq);
6764 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6766 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6767 "2134 Failed to set host os driver version %x",
6771 /* Read the port's service parameters. */
6772 rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
6774 phba->link_state = LPFC_HBA_ERROR;
6779 mboxq->vport = vport;
6780 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6781 mp = (struct lpfc_dmabuf *) mboxq->context1;
6782 if (rc == MBX_SUCCESS) {
6783 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
6788 * This memory was allocated by the lpfc_read_sparam routine. Release
6789 * it to the mbuf pool.
6791 lpfc_mbuf_free(phba, mp->virt, mp->phys);
6793 mboxq->context1 = NULL;
6795 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6796 "0382 READ_SPARAM command failed "
6797 "status %d, mbxStatus x%x\n",
6798 rc, bf_get(lpfc_mqe_status, mqe));
6799 phba->link_state = LPFC_HBA_ERROR;
6804 lpfc_update_vport_wwn(vport);
6806 /* Update the fc_host data structures with new wwn. */
6807 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
6808 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
6810 /* Create all the SLI4 queues */
6811 rc = lpfc_sli4_queue_create(phba);
6813 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6814 "3089 Failed to allocate queues\n");
6818 /* Set up all the queues to the device */
6819 rc = lpfc_sli4_queue_setup(phba);
6821 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6822 "0381 Error %d during queue setup.\n ", rc);
6823 goto out_stop_timers;
6825 /* Initialize the driver internal SLI layer lists. */
6826 lpfc_sli4_setup(phba);
6827 lpfc_sli4_queue_init(phba);
6829 /* update host els xri-sgl sizes and mappings */
6830 rc = lpfc_sli4_els_sgl_update(phba);
6832 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6833 "1400 Failed to update xri-sgl size and "
6834 "mapping: %d\n", rc);
6835 goto out_destroy_queue;
6838 /* register the els sgl pool to the port */
6839 rc = lpfc_sli4_repost_sgl_list(phba, &phba->sli4_hba.lpfc_els_sgl_list,
6840 phba->sli4_hba.els_xri_cnt);
6841 if (unlikely(rc < 0)) {
6842 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6843 "0582 Error %d during els sgl post "
6846 goto out_destroy_queue;
6848 phba->sli4_hba.els_xri_cnt = rc;
6850 if (phba->nvmet_support) {
6851 /* update host nvmet xri-sgl sizes and mappings */
6852 rc = lpfc_sli4_nvmet_sgl_update(phba);
6854 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6855 "6308 Failed to update nvmet-sgl size "
6856 "and mapping: %d\n", rc);
6857 goto out_destroy_queue;
6860 /* register the nvmet sgl pool to the port */
6861 rc = lpfc_sli4_repost_sgl_list(
6863 &phba->sli4_hba.lpfc_nvmet_sgl_list,
6864 phba->sli4_hba.nvmet_xri_cnt);
6865 if (unlikely(rc < 0)) {
6866 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6867 "3117 Error %d during nvmet "
6870 goto out_destroy_queue;
6872 phba->sli4_hba.nvmet_xri_cnt = rc;
6873 lpfc_nvmet_create_targetport(phba);
6875 /* update host scsi xri-sgl sizes and mappings */
6876 rc = lpfc_sli4_scsi_sgl_update(phba);
6878 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6879 "6309 Failed to update scsi-sgl size "
6880 "and mapping: %d\n", rc);
6881 goto out_destroy_queue;
6884 /* update host nvme xri-sgl sizes and mappings */
6885 rc = lpfc_sli4_nvme_sgl_update(phba);
6887 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6888 "6082 Failed to update nvme-sgl size "
6889 "and mapping: %d\n", rc);
6890 goto out_destroy_queue;
6894 if (phba->nvmet_support && phba->cfg_nvmet_mrq) {
6896 /* Post initial buffers to all RQs created */
6897 for (i = 0; i < phba->cfg_nvmet_mrq; i++) {
6898 rqbp = phba->sli4_hba.nvmet_mrq_hdr[i]->rqbp;
6899 INIT_LIST_HEAD(&rqbp->rqb_buffer_list);
6900 rqbp->rqb_alloc_buffer = lpfc_sli4_nvmet_alloc;
6901 rqbp->rqb_free_buffer = lpfc_sli4_nvmet_free;
6902 rqbp->entry_count = 256;
6903 rqbp->buffer_count = 0;
6905 /* Divide by 4 and round down to multiple of 16 */
6906 rc = (phba->cfg_nvmet_mrq_post >> 2) & 0xfff8;
6907 phba->sli4_hba.nvmet_mrq_hdr[i]->entry_repost = rc;
6908 phba->sli4_hba.nvmet_mrq_data[i]->entry_repost = rc;
6910 lpfc_post_rq_buffer(
6911 phba, phba->sli4_hba.nvmet_mrq_hdr[i],
6912 phba->sli4_hba.nvmet_mrq_data[i],
6913 phba->cfg_nvmet_mrq_post);
6917 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
6918 /* register the allocated scsi sgl pool to the port */
6919 rc = lpfc_sli4_repost_scsi_sgl_list(phba);
6921 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6922 "0383 Error %d during scsi sgl post "
6924 /* Some Scsi buffers were moved to abort scsi list */
6925 /* A pci function reset will repost them */
6927 goto out_destroy_queue;
6931 if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
6932 (phba->nvmet_support == 0)) {
6934 /* register the allocated nvme sgl pool to the port */
6935 rc = lpfc_repost_nvme_sgl_list(phba);
6937 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6938 "6116 Error %d during nvme sgl post "
6940 /* Some NVME buffers were moved to abort nvme list */
6941 /* A pci function reset will repost them */
6943 goto out_destroy_queue;
6947 /* Post the rpi header region to the device. */
6948 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
6950 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6951 "0393 Error %d during rpi post operation\n",
6954 goto out_destroy_queue;
6956 lpfc_sli4_node_prep(phba);
6958 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
6959 if ((phba->nvmet_support == 0) || (phba->cfg_nvmet_mrq == 1)) {
6961 * The FC Port needs to register FCFI (index 0)
6963 lpfc_reg_fcfi(phba, mboxq);
6964 mboxq->vport = phba->pport;
6965 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6966 if (rc != MBX_SUCCESS)
6967 goto out_unset_queue;
6969 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi,
6970 &mboxq->u.mqe.un.reg_fcfi);
6972 /* We are a NVME Target mode with MRQ > 1 */
6974 /* First register the FCFI */
6975 lpfc_reg_fcfi_mrq(phba, mboxq, 0);
6976 mboxq->vport = phba->pport;
6977 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6978 if (rc != MBX_SUCCESS)
6979 goto out_unset_queue;
6981 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_mrq_fcfi,
6982 &mboxq->u.mqe.un.reg_fcfi_mrq);
6984 /* Next register the MRQs */
6985 lpfc_reg_fcfi_mrq(phba, mboxq, 1);
6986 mboxq->vport = phba->pport;
6987 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6988 if (rc != MBX_SUCCESS)
6989 goto out_unset_queue;
6992 /* Check if the port is configured to be disabled */
6993 lpfc_sli_read_link_ste(phba);
6996 /* Arm the CQs and then EQs on device */
6997 lpfc_sli4_arm_cqeq_intr(phba);
6999 /* Indicate device interrupt mode */
7000 phba->sli4_hba.intr_enable = 1;
7002 /* Allow asynchronous mailbox command to go through */
7003 spin_lock_irq(&phba->hbalock);
7004 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7005 spin_unlock_irq(&phba->hbalock);
7007 /* Post receive buffers to the device */
7008 lpfc_sli4_rb_setup(phba);
7010 /* Reset HBA FCF states after HBA reset */
7011 phba->fcf.fcf_flag = 0;
7012 phba->fcf.current_rec.flag = 0;
7014 /* Start the ELS watchdog timer */
7015 mod_timer(&vport->els_tmofunc,
7016 jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov * 2)));
7018 /* Start heart beat timer */
7019 mod_timer(&phba->hb_tmofunc,
7020 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
7021 phba->hb_outstanding = 0;
7022 phba->last_completion_time = jiffies;
7024 /* Start error attention (ERATT) polling timer */
7025 mod_timer(&phba->eratt_poll,
7026 jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
7028 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
7029 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
7030 rc = pci_enable_pcie_error_reporting(phba->pcidev);
7032 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7033 "2829 This device supports "
7034 "Advanced Error Reporting (AER)\n");
7035 spin_lock_irq(&phba->hbalock);
7036 phba->hba_flag |= HBA_AER_ENABLED;
7037 spin_unlock_irq(&phba->hbalock);
7039 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7040 "2830 This device does not support "
7041 "Advanced Error Reporting (AER)\n");
7042 phba->cfg_aer_support = 0;
7048 * The port is ready, set the host's link state to LINK_DOWN
7049 * in preparation for link interrupts.
7051 spin_lock_irq(&phba->hbalock);
7052 phba->link_state = LPFC_LINK_DOWN;
7053 spin_unlock_irq(&phba->hbalock);
7054 if (!(phba->hba_flag & HBA_FCOE_MODE) &&
7055 (phba->hba_flag & LINK_DISABLED)) {
7056 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
7057 "3103 Adapter Link is disabled.\n");
7058 lpfc_down_link(phba, mboxq);
7059 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7060 if (rc != MBX_SUCCESS) {
7061 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
7062 "3104 Adapter failed to issue "
7063 "DOWN_LINK mbox cmd, rc:x%x\n", rc);
7064 goto out_unset_queue;
7066 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
7067 /* don't perform init_link on SLI4 FC port loopback test */
7068 if (!(phba->link_flag & LS_LOOPBACK_MODE)) {
7069 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
7071 goto out_unset_queue;
7074 mempool_free(mboxq, phba->mbox_mem_pool);
7077 /* Unset all the queues set up in this routine when error out */
7078 lpfc_sli4_queue_unset(phba);
7080 lpfc_sli4_queue_destroy(phba);
7082 lpfc_stop_hba_timers(phba);
7084 mempool_free(mboxq, phba->mbox_mem_pool);
7089 * lpfc_mbox_timeout - Timeout call back function for mbox timer
7090 * @ptr: context object - pointer to hba structure.
7092 * This is the callback function for mailbox timer. The mailbox
7093 * timer is armed when a new mailbox command is issued and the timer
7094 * is deleted when the mailbox complete. The function is called by
7095 * the kernel timer code when a mailbox does not complete within
7096 * expected time. This function wakes up the worker thread to
7097 * process the mailbox timeout and returns. All the processing is
7098 * done by the worker thread function lpfc_mbox_timeout_handler.
7101 lpfc_mbox_timeout(unsigned long ptr)
7103 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
7104 unsigned long iflag;
7105 uint32_t tmo_posted;
7107 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
7108 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
7110 phba->pport->work_port_events |= WORKER_MBOX_TMO;
7111 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
7114 lpfc_worker_wake_up(phba);
7119 * lpfc_sli4_mbox_completions_pending - check to see if any mailbox completions
7121 * @phba: Pointer to HBA context object.
7123 * This function checks if any mailbox completions are present on the mailbox
7127 lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba)
7131 struct lpfc_queue *mcq;
7132 struct lpfc_mcqe *mcqe;
7133 bool pending_completions = false;
7135 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
7138 /* Check for completions on mailbox completion queue */
7140 mcq = phba->sli4_hba.mbx_cq;
7141 idx = mcq->hba_index;
7142 while (bf_get_le32(lpfc_cqe_valid, mcq->qe[idx].cqe)) {
7143 mcqe = (struct lpfc_mcqe *)mcq->qe[idx].cqe;
7144 if (bf_get_le32(lpfc_trailer_completed, mcqe) &&
7145 (!bf_get_le32(lpfc_trailer_async, mcqe))) {
7146 pending_completions = true;
7149 idx = (idx + 1) % mcq->entry_count;
7150 if (mcq->hba_index == idx)
7153 return pending_completions;
7158 * lpfc_sli4_process_missed_mbox_completions - process mbox completions
7160 * @phba: Pointer to HBA context object.
7162 * For sli4, it is possible to miss an interrupt. As such mbox completions
7163 * maybe missed causing erroneous mailbox timeouts to occur. This function
7164 * checks to see if mbox completions are on the mailbox completion queue
7165 * and will process all the completions associated with the eq for the
7166 * mailbox completion queue.
7169 lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba)
7173 struct lpfc_queue *fpeq = NULL;
7174 struct lpfc_eqe *eqe;
7177 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
7180 /* Find the eq associated with the mcq */
7182 if (phba->sli4_hba.hba_eq)
7183 for (eqidx = 0; eqidx < phba->io_channel_irqs; eqidx++)
7184 if (phba->sli4_hba.hba_eq[eqidx]->queue_id ==
7185 phba->sli4_hba.mbx_cq->assoc_qid) {
7186 fpeq = phba->sli4_hba.hba_eq[eqidx];
7192 /* Turn off interrupts from this EQ */
7194 lpfc_sli4_eq_clr_intr(fpeq);
7196 /* Check to see if a mbox completion is pending */
7198 mbox_pending = lpfc_sli4_mbox_completions_pending(phba);
7201 * If a mbox completion is pending, process all the events on EQ
7202 * associated with the mbox completion queue (this could include
7203 * mailbox commands, async events, els commands, receive queue data
7208 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
7209 lpfc_sli4_hba_handle_eqe(phba, eqe, eqidx);
7210 fpeq->EQ_processed++;
7213 /* Always clear and re-arm the EQ */
7215 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
7217 return mbox_pending;
7222 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
7223 * @phba: Pointer to HBA context object.
7225 * This function is called from worker thread when a mailbox command times out.
7226 * The caller is not required to hold any locks. This function will reset the
7227 * HBA and recover all the pending commands.
7230 lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
7232 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
7233 MAILBOX_t *mb = NULL;
7235 struct lpfc_sli *psli = &phba->sli;
7237 /* If the mailbox completed, process the completion and return */
7238 if (lpfc_sli4_process_missed_mbox_completions(phba))
7243 /* Check the pmbox pointer first. There is a race condition
7244 * between the mbox timeout handler getting executed in the
7245 * worklist and the mailbox actually completing. When this
7246 * race condition occurs, the mbox_active will be NULL.
7248 spin_lock_irq(&phba->hbalock);
7249 if (pmbox == NULL) {
7250 lpfc_printf_log(phba, KERN_WARNING,
7252 "0353 Active Mailbox cleared - mailbox timeout "
7254 spin_unlock_irq(&phba->hbalock);
7258 /* Mbox cmd <mbxCommand> timeout */
7259 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7260 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
7262 phba->pport->port_state,
7264 phba->sli.mbox_active);
7265 spin_unlock_irq(&phba->hbalock);
7267 /* Setting state unknown so lpfc_sli_abort_iocb_ring
7268 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
7269 * it to fail all outstanding SCSI IO.
7271 spin_lock_irq(&phba->pport->work_port_lock);
7272 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
7273 spin_unlock_irq(&phba->pport->work_port_lock);
7274 spin_lock_irq(&phba->hbalock);
7275 phba->link_state = LPFC_LINK_UNKNOWN;
7276 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
7277 spin_unlock_irq(&phba->hbalock);
7279 lpfc_sli_abort_fcp_rings(phba);
7281 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7282 "0345 Resetting board due to mailbox timeout\n");
7284 /* Reset the HBA device */
7285 lpfc_reset_hba(phba);
7289 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
7290 * @phba: Pointer to HBA context object.
7291 * @pmbox: Pointer to mailbox object.
7292 * @flag: Flag indicating how the mailbox need to be processed.
7294 * This function is called by discovery code and HBA management code
7295 * to submit a mailbox command to firmware with SLI-3 interface spec. This
7296 * function gets the hbalock to protect the data structures.
7297 * The mailbox command can be submitted in polling mode, in which case
7298 * this function will wait in a polling loop for the completion of the
7300 * If the mailbox is submitted in no_wait mode (not polling) the
7301 * function will submit the command and returns immediately without waiting
7302 * for the mailbox completion. The no_wait is supported only when HBA
7303 * is in SLI2/SLI3 mode - interrupts are enabled.
7304 * The SLI interface allows only one mailbox pending at a time. If the
7305 * mailbox is issued in polling mode and there is already a mailbox
7306 * pending, then the function will return an error. If the mailbox is issued
7307 * in NO_WAIT mode and there is a mailbox pending already, the function
7308 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
7309 * The sli layer owns the mailbox object until the completion of mailbox
7310 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
7311 * return codes the caller owns the mailbox command after the return of
7315 lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
7319 struct lpfc_sli *psli = &phba->sli;
7320 uint32_t status, evtctr;
7321 uint32_t ha_copy, hc_copy;
7323 unsigned long timeout;
7324 unsigned long drvr_flag = 0;
7325 uint32_t word0, ldata;
7326 void __iomem *to_slim;
7327 int processing_queue = 0;
7329 spin_lock_irqsave(&phba->hbalock, drvr_flag);
7331 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7332 /* processing mbox queue from intr_handler */
7333 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7334 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7337 processing_queue = 1;
7338 pmbox = lpfc_mbox_get(phba);
7340 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7345 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
7346 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
7348 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7349 lpfc_printf_log(phba, KERN_ERR,
7350 LOG_MBOX | LOG_VPORT,
7351 "1806 Mbox x%x failed. No vport\n",
7352 pmbox->u.mb.mbxCommand);
7354 goto out_not_finished;
7358 /* If the PCI channel is in offline state, do not post mbox. */
7359 if (unlikely(pci_channel_offline(phba->pcidev))) {
7360 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7361 goto out_not_finished;
7364 /* If HBA has a deferred error attention, fail the iocb. */
7365 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
7366 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7367 goto out_not_finished;
7373 status = MBX_SUCCESS;
7375 if (phba->link_state == LPFC_HBA_ERROR) {
7376 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7378 /* Mbox command <mbxCommand> cannot issue */
7379 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7380 "(%d):0311 Mailbox command x%x cannot "
7381 "issue Data: x%x x%x\n",
7382 pmbox->vport ? pmbox->vport->vpi : 0,
7383 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
7384 goto out_not_finished;
7387 if (mbx->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT) {
7388 if (lpfc_readl(phba->HCregaddr, &hc_copy) ||
7389 !(hc_copy & HC_MBINT_ENA)) {
7390 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7391 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7392 "(%d):2528 Mailbox command x%x cannot "
7393 "issue Data: x%x x%x\n",
7394 pmbox->vport ? pmbox->vport->vpi : 0,
7395 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
7396 goto out_not_finished;
7400 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7401 /* Polling for a mbox command when another one is already active
7402 * is not allowed in SLI. Also, the driver must have established
7403 * SLI2 mode to queue and process multiple mbox commands.
7406 if (flag & MBX_POLL) {
7407 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7409 /* Mbox command <mbxCommand> cannot issue */
7410 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7411 "(%d):2529 Mailbox command x%x "
7412 "cannot issue Data: x%x x%x\n",
7413 pmbox->vport ? pmbox->vport->vpi : 0,
7414 pmbox->u.mb.mbxCommand,
7415 psli->sli_flag, flag);
7416 goto out_not_finished;
7419 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
7420 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7421 /* Mbox command <mbxCommand> cannot issue */
7422 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7423 "(%d):2530 Mailbox command x%x "
7424 "cannot issue Data: x%x x%x\n",
7425 pmbox->vport ? pmbox->vport->vpi : 0,
7426 pmbox->u.mb.mbxCommand,
7427 psli->sli_flag, flag);
7428 goto out_not_finished;
7431 /* Another mailbox command is still being processed, queue this
7432 * command to be processed later.
7434 lpfc_mbox_put(phba, pmbox);
7436 /* Mbox cmd issue - BUSY */
7437 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7438 "(%d):0308 Mbox cmd issue - BUSY Data: "
7439 "x%x x%x x%x x%x\n",
7440 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
7441 mbx->mbxCommand, phba->pport->port_state,
7442 psli->sli_flag, flag);
7444 psli->slistat.mbox_busy++;
7445 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7448 lpfc_debugfs_disc_trc(pmbox->vport,
7449 LPFC_DISC_TRC_MBOX_VPORT,
7450 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
7451 (uint32_t)mbx->mbxCommand,
7452 mbx->un.varWords[0], mbx->un.varWords[1]);
7455 lpfc_debugfs_disc_trc(phba->pport,
7457 "MBOX Bsy: cmd:x%x mb:x%x x%x",
7458 (uint32_t)mbx->mbxCommand,
7459 mbx->un.varWords[0], mbx->un.varWords[1]);
7465 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7467 /* If we are not polling, we MUST be in SLI2 mode */
7468 if (flag != MBX_POLL) {
7469 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
7470 (mbx->mbxCommand != MBX_KILL_BOARD)) {
7471 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7472 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7473 /* Mbox command <mbxCommand> cannot issue */
7474 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7475 "(%d):2531 Mailbox command x%x "
7476 "cannot issue Data: x%x x%x\n",
7477 pmbox->vport ? pmbox->vport->vpi : 0,
7478 pmbox->u.mb.mbxCommand,
7479 psli->sli_flag, flag);
7480 goto out_not_finished;
7482 /* timeout active mbox command */
7483 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
7485 mod_timer(&psli->mbox_tmo, jiffies + timeout);
7488 /* Mailbox cmd <cmd> issue */
7489 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7490 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
7492 pmbox->vport ? pmbox->vport->vpi : 0,
7493 mbx->mbxCommand, phba->pport->port_state,
7494 psli->sli_flag, flag);
7496 if (mbx->mbxCommand != MBX_HEARTBEAT) {
7498 lpfc_debugfs_disc_trc(pmbox->vport,
7499 LPFC_DISC_TRC_MBOX_VPORT,
7500 "MBOX Send vport: cmd:x%x mb:x%x x%x",
7501 (uint32_t)mbx->mbxCommand,
7502 mbx->un.varWords[0], mbx->un.varWords[1]);
7505 lpfc_debugfs_disc_trc(phba->pport,
7507 "MBOX Send: cmd:x%x mb:x%x x%x",
7508 (uint32_t)mbx->mbxCommand,
7509 mbx->un.varWords[0], mbx->un.varWords[1]);
7513 psli->slistat.mbox_cmd++;
7514 evtctr = psli->slistat.mbox_event;
7516 /* next set own bit for the adapter and copy over command word */
7517 mbx->mbxOwner = OWN_CHIP;
7519 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7520 /* Populate mbox extension offset word. */
7521 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) {
7522 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
7523 = (uint8_t *)phba->mbox_ext
7524 - (uint8_t *)phba->mbox;
7527 /* Copy the mailbox extension data */
7528 if (pmbox->in_ext_byte_len && pmbox->context2) {
7529 lpfc_sli_pcimem_bcopy(pmbox->context2,
7530 (uint8_t *)phba->mbox_ext,
7531 pmbox->in_ext_byte_len);
7533 /* Copy command data to host SLIM area */
7534 lpfc_sli_pcimem_bcopy(mbx, phba->mbox, MAILBOX_CMD_SIZE);
7536 /* Populate mbox extension offset word. */
7537 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len)
7538 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
7539 = MAILBOX_HBA_EXT_OFFSET;
7541 /* Copy the mailbox extension data */
7542 if (pmbox->in_ext_byte_len && pmbox->context2)
7543 lpfc_memcpy_to_slim(phba->MBslimaddr +
7544 MAILBOX_HBA_EXT_OFFSET,
7545 pmbox->context2, pmbox->in_ext_byte_len);
7547 if (mbx->mbxCommand == MBX_CONFIG_PORT)
7548 /* copy command data into host mbox for cmpl */
7549 lpfc_sli_pcimem_bcopy(mbx, phba->mbox,
7552 /* First copy mbox command data to HBA SLIM, skip past first
7554 to_slim = phba->MBslimaddr + sizeof (uint32_t);
7555 lpfc_memcpy_to_slim(to_slim, &mbx->un.varWords[0],
7556 MAILBOX_CMD_SIZE - sizeof (uint32_t));
7558 /* Next copy over first word, with mbxOwner set */
7559 ldata = *((uint32_t *)mbx);
7560 to_slim = phba->MBslimaddr;
7561 writel(ldata, to_slim);
7562 readl(to_slim); /* flush */
7564 if (mbx->mbxCommand == MBX_CONFIG_PORT)
7565 /* switch over to host mailbox */
7566 psli->sli_flag |= LPFC_SLI_ACTIVE;
7573 /* Set up reference to mailbox command */
7574 psli->mbox_active = pmbox;
7575 /* Interrupt board to do it */
7576 writel(CA_MBATT, phba->CAregaddr);
7577 readl(phba->CAregaddr); /* flush */
7578 /* Don't wait for it to finish, just return */
7582 /* Set up null reference to mailbox command */
7583 psli->mbox_active = NULL;
7584 /* Interrupt board to do it */
7585 writel(CA_MBATT, phba->CAregaddr);
7586 readl(phba->CAregaddr); /* flush */
7588 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7589 /* First read mbox status word */
7590 word0 = *((uint32_t *)phba->mbox);
7591 word0 = le32_to_cpu(word0);
7593 /* First read mbox status word */
7594 if (lpfc_readl(phba->MBslimaddr, &word0)) {
7595 spin_unlock_irqrestore(&phba->hbalock,
7597 goto out_not_finished;
7601 /* Read the HBA Host Attention Register */
7602 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
7603 spin_unlock_irqrestore(&phba->hbalock,
7605 goto out_not_finished;
7607 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
7610 /* Wait for command to complete */
7611 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
7612 (!(ha_copy & HA_MBATT) &&
7613 (phba->link_state > LPFC_WARM_START))) {
7614 if (time_after(jiffies, timeout)) {
7615 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7616 spin_unlock_irqrestore(&phba->hbalock,
7618 goto out_not_finished;
7621 /* Check if we took a mbox interrupt while we were
7623 if (((word0 & OWN_CHIP) != OWN_CHIP)
7624 && (evtctr != psli->slistat.mbox_event))
7628 spin_unlock_irqrestore(&phba->hbalock,
7631 spin_lock_irqsave(&phba->hbalock, drvr_flag);
7634 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7635 /* First copy command data */
7636 word0 = *((uint32_t *)phba->mbox);
7637 word0 = le32_to_cpu(word0);
7638 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
7641 /* Check real SLIM for any errors */
7642 slimword0 = readl(phba->MBslimaddr);
7643 slimmb = (MAILBOX_t *) & slimword0;
7644 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
7645 && slimmb->mbxStatus) {
7652 /* First copy command data */
7653 word0 = readl(phba->MBslimaddr);
7655 /* Read the HBA Host Attention Register */
7656 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
7657 spin_unlock_irqrestore(&phba->hbalock,
7659 goto out_not_finished;
7663 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7664 /* copy results back to user */
7665 lpfc_sli_pcimem_bcopy(phba->mbox, mbx,
7667 /* Copy the mailbox extension data */
7668 if (pmbox->out_ext_byte_len && pmbox->context2) {
7669 lpfc_sli_pcimem_bcopy(phba->mbox_ext,
7671 pmbox->out_ext_byte_len);
7674 /* First copy command data */
7675 lpfc_memcpy_from_slim(mbx, phba->MBslimaddr,
7677 /* Copy the mailbox extension data */
7678 if (pmbox->out_ext_byte_len && pmbox->context2) {
7679 lpfc_memcpy_from_slim(pmbox->context2,
7681 MAILBOX_HBA_EXT_OFFSET,
7682 pmbox->out_ext_byte_len);
7686 writel(HA_MBATT, phba->HAregaddr);
7687 readl(phba->HAregaddr); /* flush */
7689 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7690 status = mbx->mbxStatus;
7693 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7697 if (processing_queue) {
7698 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
7699 lpfc_mbox_cmpl_put(phba, pmbox);
7701 return MBX_NOT_FINISHED;
7705 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
7706 * @phba: Pointer to HBA context object.
7708 * The function blocks the posting of SLI4 asynchronous mailbox commands from
7709 * the driver internal pending mailbox queue. It will then try to wait out the
7710 * possible outstanding mailbox command before return.
7713 * 0 - the outstanding mailbox command completed; otherwise, the wait for
7714 * the outstanding mailbox command timed out.
7717 lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
7719 struct lpfc_sli *psli = &phba->sli;
7721 unsigned long timeout = 0;
7723 /* Mark the asynchronous mailbox command posting as blocked */
7724 spin_lock_irq(&phba->hbalock);
7725 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
7726 /* Determine how long we might wait for the active mailbox
7727 * command to be gracefully completed by firmware.
7729 if (phba->sli.mbox_active)
7730 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
7731 phba->sli.mbox_active) *
7733 spin_unlock_irq(&phba->hbalock);
7735 /* Make sure the mailbox is really active */
7737 lpfc_sli4_process_missed_mbox_completions(phba);
7739 /* Wait for the outstnading mailbox command to complete */
7740 while (phba->sli.mbox_active) {
7741 /* Check active mailbox complete status every 2ms */
7743 if (time_after(jiffies, timeout)) {
7744 /* Timeout, marked the outstanding cmd not complete */
7750 /* Can not cleanly block async mailbox command, fails it */
7752 spin_lock_irq(&phba->hbalock);
7753 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7754 spin_unlock_irq(&phba->hbalock);
7760 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
7761 * @phba: Pointer to HBA context object.
7763 * The function unblocks and resume posting of SLI4 asynchronous mailbox
7764 * commands from the driver internal pending mailbox queue. It makes sure
7765 * that there is no outstanding mailbox command before resuming posting
7766 * asynchronous mailbox commands. If, for any reason, there is outstanding
7767 * mailbox command, it will try to wait it out before resuming asynchronous
7768 * mailbox command posting.
7771 lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
7773 struct lpfc_sli *psli = &phba->sli;
7775 spin_lock_irq(&phba->hbalock);
7776 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7777 /* Asynchronous mailbox posting is not blocked, do nothing */
7778 spin_unlock_irq(&phba->hbalock);
7782 /* Outstanding synchronous mailbox command is guaranteed to be done,
7783 * successful or timeout, after timing-out the outstanding mailbox
7784 * command shall always be removed, so just unblock posting async
7785 * mailbox command and resume
7787 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7788 spin_unlock_irq(&phba->hbalock);
7790 /* wake up worker thread to post asynchronlous mailbox command */
7791 lpfc_worker_wake_up(phba);
7795 * lpfc_sli4_wait_bmbx_ready - Wait for bootstrap mailbox register ready
7796 * @phba: Pointer to HBA context object.
7797 * @mboxq: Pointer to mailbox object.
7799 * The function waits for the bootstrap mailbox register ready bit from
7800 * port for twice the regular mailbox command timeout value.
7802 * 0 - no timeout on waiting for bootstrap mailbox register ready.
7803 * MBXERR_ERROR - wait for bootstrap mailbox register timed out.
7806 lpfc_sli4_wait_bmbx_ready(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7809 unsigned long timeout;
7810 struct lpfc_register bmbx_reg;
7812 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mboxq)
7816 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
7817 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
7821 if (time_after(jiffies, timeout))
7822 return MBXERR_ERROR;
7823 } while (!db_ready);
7829 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
7830 * @phba: Pointer to HBA context object.
7831 * @mboxq: Pointer to mailbox object.
7833 * The function posts a mailbox to the port. The mailbox is expected
7834 * to be comletely filled in and ready for the port to operate on it.
7835 * This routine executes a synchronous completion operation on the
7836 * mailbox by polling for its completion.
7838 * The caller must not be holding any locks when calling this routine.
7841 * MBX_SUCCESS - mailbox posted successfully
7842 * Any of the MBX error values.
7845 lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7847 int rc = MBX_SUCCESS;
7848 unsigned long iflag;
7849 uint32_t mcqe_status;
7851 struct lpfc_sli *psli = &phba->sli;
7852 struct lpfc_mqe *mb = &mboxq->u.mqe;
7853 struct lpfc_bmbx_create *mbox_rgn;
7854 struct dma_address *dma_address;
7857 * Only one mailbox can be active to the bootstrap mailbox region
7858 * at a time and there is no queueing provided.
7860 spin_lock_irqsave(&phba->hbalock, iflag);
7861 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7862 spin_unlock_irqrestore(&phba->hbalock, iflag);
7863 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7864 "(%d):2532 Mailbox command x%x (x%x/x%x) "
7865 "cannot issue Data: x%x x%x\n",
7866 mboxq->vport ? mboxq->vport->vpi : 0,
7867 mboxq->u.mb.mbxCommand,
7868 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7869 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7870 psli->sli_flag, MBX_POLL);
7871 return MBXERR_ERROR;
7873 /* The server grabs the token and owns it until release */
7874 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7875 phba->sli.mbox_active = mboxq;
7876 spin_unlock_irqrestore(&phba->hbalock, iflag);
7878 /* wait for bootstrap mbox register for readyness */
7879 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7884 * Initialize the bootstrap memory region to avoid stale data areas
7885 * in the mailbox post. Then copy the caller's mailbox contents to
7886 * the bmbx mailbox region.
7888 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
7889 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
7890 lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
7891 sizeof(struct lpfc_mqe));
7893 /* Post the high mailbox dma address to the port and wait for ready. */
7894 dma_address = &phba->sli4_hba.bmbx.dma_address;
7895 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
7897 /* wait for bootstrap mbox register for hi-address write done */
7898 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7902 /* Post the low mailbox dma address to the port. */
7903 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
7905 /* wait for bootstrap mbox register for low address write done */
7906 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7911 * Read the CQ to ensure the mailbox has completed.
7912 * If so, update the mailbox status so that the upper layers
7913 * can complete the request normally.
7915 lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
7916 sizeof(struct lpfc_mqe));
7917 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
7918 lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
7919 sizeof(struct lpfc_mcqe));
7920 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
7922 * When the CQE status indicates a failure and the mailbox status
7923 * indicates success then copy the CQE status into the mailbox status
7924 * (and prefix it with x4000).
7926 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
7927 if (bf_get(lpfc_mqe_status, mb) == MBX_SUCCESS)
7928 bf_set(lpfc_mqe_status, mb,
7929 (LPFC_MBX_ERROR_RANGE | mcqe_status));
7932 lpfc_sli4_swap_str(phba, mboxq);
7934 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7935 "(%d):0356 Mailbox cmd x%x (x%x/x%x) Status x%x "
7936 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
7937 " x%x x%x CQ: x%x x%x x%x x%x\n",
7938 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
7939 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7940 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7941 bf_get(lpfc_mqe_status, mb),
7942 mb->un.mb_words[0], mb->un.mb_words[1],
7943 mb->un.mb_words[2], mb->un.mb_words[3],
7944 mb->un.mb_words[4], mb->un.mb_words[5],
7945 mb->un.mb_words[6], mb->un.mb_words[7],
7946 mb->un.mb_words[8], mb->un.mb_words[9],
7947 mb->un.mb_words[10], mb->un.mb_words[11],
7948 mb->un.mb_words[12], mboxq->mcqe.word0,
7949 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
7950 mboxq->mcqe.trailer);
7952 /* We are holding the token, no needed for lock when release */
7953 spin_lock_irqsave(&phba->hbalock, iflag);
7954 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7955 phba->sli.mbox_active = NULL;
7956 spin_unlock_irqrestore(&phba->hbalock, iflag);
7961 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
7962 * @phba: Pointer to HBA context object.
7963 * @pmbox: Pointer to mailbox object.
7964 * @flag: Flag indicating how the mailbox need to be processed.
7966 * This function is called by discovery code and HBA management code to submit
7967 * a mailbox command to firmware with SLI-4 interface spec.
7969 * Return codes the caller owns the mailbox command after the return of the
7973 lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
7976 struct lpfc_sli *psli = &phba->sli;
7977 unsigned long iflags;
7980 /* dump from issue mailbox command if setup */
7981 lpfc_idiag_mbxacc_dump_issue_mbox(phba, &mboxq->u.mb);
7983 rc = lpfc_mbox_dev_check(phba);
7985 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7986 "(%d):2544 Mailbox command x%x (x%x/x%x) "
7987 "cannot issue Data: x%x x%x\n",
7988 mboxq->vport ? mboxq->vport->vpi : 0,
7989 mboxq->u.mb.mbxCommand,
7990 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7991 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7992 psli->sli_flag, flag);
7993 goto out_not_finished;
7996 /* Detect polling mode and jump to a handler */
7997 if (!phba->sli4_hba.intr_enable) {
7998 if (flag == MBX_POLL)
7999 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
8002 if (rc != MBX_SUCCESS)
8003 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
8004 "(%d):2541 Mailbox command x%x "
8005 "(x%x/x%x) failure: "
8006 "mqe_sta: x%x mcqe_sta: x%x/x%x "
8008 mboxq->vport ? mboxq->vport->vpi : 0,
8009 mboxq->u.mb.mbxCommand,
8010 lpfc_sli_config_mbox_subsys_get(phba,
8012 lpfc_sli_config_mbox_opcode_get(phba,
8014 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
8015 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
8016 bf_get(lpfc_mcqe_ext_status,
8018 psli->sli_flag, flag);
8020 } else if (flag == MBX_POLL) {
8021 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
8022 "(%d):2542 Try to issue mailbox command "
8023 "x%x (x%x/x%x) synchronously ahead of async"
8024 "mailbox command queue: x%x x%x\n",
8025 mboxq->vport ? mboxq->vport->vpi : 0,
8026 mboxq->u.mb.mbxCommand,
8027 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8028 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8029 psli->sli_flag, flag);
8030 /* Try to block the asynchronous mailbox posting */
8031 rc = lpfc_sli4_async_mbox_block(phba);
8033 /* Successfully blocked, now issue sync mbox cmd */
8034 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
8035 if (rc != MBX_SUCCESS)
8036 lpfc_printf_log(phba, KERN_WARNING,
8038 "(%d):2597 Sync Mailbox command "
8039 "x%x (x%x/x%x) failure: "
8040 "mqe_sta: x%x mcqe_sta: x%x/x%x "
8042 mboxq->vport ? mboxq->vport->vpi : 0,
8043 mboxq->u.mb.mbxCommand,
8044 lpfc_sli_config_mbox_subsys_get(phba,
8046 lpfc_sli_config_mbox_opcode_get(phba,
8048 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
8049 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
8050 bf_get(lpfc_mcqe_ext_status,
8052 psli->sli_flag, flag);
8053 /* Unblock the async mailbox posting afterward */
8054 lpfc_sli4_async_mbox_unblock(phba);
8059 /* Now, interrupt mode asynchrous mailbox command */
8060 rc = lpfc_mbox_cmd_check(phba, mboxq);
8062 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8063 "(%d):2543 Mailbox command x%x (x%x/x%x) "
8064 "cannot issue Data: x%x x%x\n",
8065 mboxq->vport ? mboxq->vport->vpi : 0,
8066 mboxq->u.mb.mbxCommand,
8067 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8068 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8069 psli->sli_flag, flag);
8070 goto out_not_finished;
8073 /* Put the mailbox command to the driver internal FIFO */
8074 psli->slistat.mbox_busy++;
8075 spin_lock_irqsave(&phba->hbalock, iflags);
8076 lpfc_mbox_put(phba, mboxq);
8077 spin_unlock_irqrestore(&phba->hbalock, iflags);
8078 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8079 "(%d):0354 Mbox cmd issue - Enqueue Data: "
8080 "x%x (x%x/x%x) x%x x%x x%x\n",
8081 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
8082 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
8083 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8084 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8085 phba->pport->port_state,
8086 psli->sli_flag, MBX_NOWAIT);
8087 /* Wake up worker thread to transport mailbox command from head */
8088 lpfc_worker_wake_up(phba);
8093 return MBX_NOT_FINISHED;
8097 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
8098 * @phba: Pointer to HBA context object.
8100 * This function is called by worker thread to send a mailbox command to
8101 * SLI4 HBA firmware.
8105 lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
8107 struct lpfc_sli *psli = &phba->sli;
8108 LPFC_MBOXQ_t *mboxq;
8109 int rc = MBX_SUCCESS;
8110 unsigned long iflags;
8111 struct lpfc_mqe *mqe;
8114 /* Check interrupt mode before post async mailbox command */
8115 if (unlikely(!phba->sli4_hba.intr_enable))
8116 return MBX_NOT_FINISHED;
8118 /* Check for mailbox command service token */
8119 spin_lock_irqsave(&phba->hbalock, iflags);
8120 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
8121 spin_unlock_irqrestore(&phba->hbalock, iflags);
8122 return MBX_NOT_FINISHED;
8124 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8125 spin_unlock_irqrestore(&phba->hbalock, iflags);
8126 return MBX_NOT_FINISHED;
8128 if (unlikely(phba->sli.mbox_active)) {
8129 spin_unlock_irqrestore(&phba->hbalock, iflags);
8130 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8131 "0384 There is pending active mailbox cmd\n");
8132 return MBX_NOT_FINISHED;
8134 /* Take the mailbox command service token */
8135 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
8137 /* Get the next mailbox command from head of queue */
8138 mboxq = lpfc_mbox_get(phba);
8140 /* If no more mailbox command waiting for post, we're done */
8142 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8143 spin_unlock_irqrestore(&phba->hbalock, iflags);
8146 phba->sli.mbox_active = mboxq;
8147 spin_unlock_irqrestore(&phba->hbalock, iflags);
8149 /* Check device readiness for posting mailbox command */
8150 rc = lpfc_mbox_dev_check(phba);
8152 /* Driver clean routine will clean up pending mailbox */
8153 goto out_not_finished;
8155 /* Prepare the mbox command to be posted */
8156 mqe = &mboxq->u.mqe;
8157 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
8159 /* Start timer for the mbox_tmo and log some mailbox post messages */
8160 mod_timer(&psli->mbox_tmo, (jiffies +
8161 msecs_to_jiffies(1000 * lpfc_mbox_tmo_val(phba, mboxq))));
8163 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8164 "(%d):0355 Mailbox cmd x%x (x%x/x%x) issue Data: "
8166 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
8167 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8168 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8169 phba->pport->port_state, psli->sli_flag);
8171 if (mbx_cmnd != MBX_HEARTBEAT) {
8173 lpfc_debugfs_disc_trc(mboxq->vport,
8174 LPFC_DISC_TRC_MBOX_VPORT,
8175 "MBOX Send vport: cmd:x%x mb:x%x x%x",
8176 mbx_cmnd, mqe->un.mb_words[0],
8177 mqe->un.mb_words[1]);
8179 lpfc_debugfs_disc_trc(phba->pport,
8181 "MBOX Send: cmd:x%x mb:x%x x%x",
8182 mbx_cmnd, mqe->un.mb_words[0],
8183 mqe->un.mb_words[1]);
8186 psli->slistat.mbox_cmd++;
8188 /* Post the mailbox command to the port */
8189 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
8190 if (rc != MBX_SUCCESS) {
8191 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8192 "(%d):2533 Mailbox command x%x (x%x/x%x) "
8193 "cannot issue Data: x%x x%x\n",
8194 mboxq->vport ? mboxq->vport->vpi : 0,
8195 mboxq->u.mb.mbxCommand,
8196 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8197 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8198 psli->sli_flag, MBX_NOWAIT);
8199 goto out_not_finished;
8205 spin_lock_irqsave(&phba->hbalock, iflags);
8206 if (phba->sli.mbox_active) {
8207 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
8208 __lpfc_mbox_cmpl_put(phba, mboxq);
8209 /* Release the token */
8210 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8211 phba->sli.mbox_active = NULL;
8213 spin_unlock_irqrestore(&phba->hbalock, iflags);
8215 return MBX_NOT_FINISHED;
8219 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
8220 * @phba: Pointer to HBA context object.
8221 * @pmbox: Pointer to mailbox object.
8222 * @flag: Flag indicating how the mailbox need to be processed.
8224 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
8225 * the API jump table function pointer from the lpfc_hba struct.
8227 * Return codes the caller owns the mailbox command after the return of the
8231 lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
8233 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
8237 * lpfc_mbox_api_table_setup - Set up mbox api function jump table
8238 * @phba: The hba struct for which this call is being executed.
8239 * @dev_grp: The HBA PCI-Device group number.
8241 * This routine sets up the mbox interface API function jump table in @phba
8243 * Returns: 0 - success, -ENODEV - failure.
8246 lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
8250 case LPFC_PCI_DEV_LP:
8251 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
8252 phba->lpfc_sli_handle_slow_ring_event =
8253 lpfc_sli_handle_slow_ring_event_s3;
8254 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
8255 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
8256 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
8258 case LPFC_PCI_DEV_OC:
8259 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
8260 phba->lpfc_sli_handle_slow_ring_event =
8261 lpfc_sli_handle_slow_ring_event_s4;
8262 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
8263 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
8264 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
8267 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8268 "1420 Invalid HBA PCI-device group: 0x%x\n",
8277 * __lpfc_sli_ringtx_put - Add an iocb to the txq
8278 * @phba: Pointer to HBA context object.
8279 * @pring: Pointer to driver SLI ring object.
8280 * @piocb: Pointer to address of newly added command iocb.
8282 * This function is called with hbalock held to add a command
8283 * iocb to the txq when SLI layer cannot submit the command iocb
8287 __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
8288 struct lpfc_iocbq *piocb)
8290 lockdep_assert_held(&phba->hbalock);
8291 /* Insert the caller's iocb in the txq tail for later processing. */
8292 list_add_tail(&piocb->list, &pring->txq);
8296 * lpfc_sli_next_iocb - Get the next iocb in the txq
8297 * @phba: Pointer to HBA context object.
8298 * @pring: Pointer to driver SLI ring object.
8299 * @piocb: Pointer to address of newly added command iocb.
8301 * This function is called with hbalock held before a new
8302 * iocb is submitted to the firmware. This function checks
8303 * txq to flush the iocbs in txq to Firmware before
8304 * submitting new iocbs to the Firmware.
8305 * If there are iocbs in the txq which need to be submitted
8306 * to firmware, lpfc_sli_next_iocb returns the first element
8307 * of the txq after dequeuing it from txq.
8308 * If there is no iocb in the txq then the function will return
8309 * *piocb and *piocb is set to NULL. Caller needs to check
8310 * *piocb to find if there are more commands in the txq.
8312 static struct lpfc_iocbq *
8313 lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
8314 struct lpfc_iocbq **piocb)
8316 struct lpfc_iocbq * nextiocb;
8318 lockdep_assert_held(&phba->hbalock);
8320 nextiocb = lpfc_sli_ringtx_get(phba, pring);
8330 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
8331 * @phba: Pointer to HBA context object.
8332 * @ring_number: SLI ring number to issue iocb on.
8333 * @piocb: Pointer to command iocb.
8334 * @flag: Flag indicating if this command can be put into txq.
8336 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
8337 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
8338 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
8339 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
8340 * this function allows only iocbs for posting buffers. This function finds
8341 * next available slot in the command ring and posts the command to the
8342 * available slot and writes the port attention register to request HBA start
8343 * processing new iocb. If there is no slot available in the ring and
8344 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
8345 * the function returns IOCB_BUSY.
8347 * This function is called with hbalock held. The function will return success
8348 * after it successfully submit the iocb to firmware or after adding to the
8352 __lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
8353 struct lpfc_iocbq *piocb, uint32_t flag)
8355 struct lpfc_iocbq *nextiocb;
8357 struct lpfc_sli_ring *pring = &phba->sli.sli3_ring[ring_number];
8359 lockdep_assert_held(&phba->hbalock);
8361 if (piocb->iocb_cmpl && (!piocb->vport) &&
8362 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
8363 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
8364 lpfc_printf_log(phba, KERN_ERR,
8365 LOG_SLI | LOG_VPORT,
8366 "1807 IOCB x%x failed. No vport\n",
8367 piocb->iocb.ulpCommand);
8373 /* If the PCI channel is in offline state, do not post iocbs. */
8374 if (unlikely(pci_channel_offline(phba->pcidev)))
8377 /* If HBA has a deferred error attention, fail the iocb. */
8378 if (unlikely(phba->hba_flag & DEFER_ERATT))
8382 * We should never get an IOCB if we are in a < LINK_DOWN state
8384 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
8388 * Check to see if we are blocking IOCB processing because of a
8389 * outstanding event.
8391 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
8394 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
8396 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
8397 * can be issued if the link is not up.
8399 switch (piocb->iocb.ulpCommand) {
8400 case CMD_GEN_REQUEST64_CR:
8401 case CMD_GEN_REQUEST64_CX:
8402 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
8403 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
8404 FC_RCTL_DD_UNSOL_CMD) ||
8405 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
8406 MENLO_TRANSPORT_TYPE))
8410 case CMD_QUE_RING_BUF_CN:
8411 case CMD_QUE_RING_BUF64_CN:
8413 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
8414 * completion, iocb_cmpl MUST be 0.
8416 if (piocb->iocb_cmpl)
8417 piocb->iocb_cmpl = NULL;
8419 case CMD_CREATE_XRI_CR:
8420 case CMD_CLOSE_XRI_CN:
8421 case CMD_CLOSE_XRI_CX:
8428 * For FCP commands, we must be in a state where we can process link
8431 } else if (unlikely(pring->ringno == LPFC_FCP_RING &&
8432 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
8436 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
8437 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
8438 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
8441 lpfc_sli_update_ring(phba, pring);
8443 lpfc_sli_update_full_ring(phba, pring);
8446 return IOCB_SUCCESS;
8451 pring->stats.iocb_cmd_delay++;
8455 if (!(flag & SLI_IOCB_RET_IOCB)) {
8456 __lpfc_sli_ringtx_put(phba, pring, piocb);
8457 return IOCB_SUCCESS;
8464 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
8465 * @phba: Pointer to HBA context object.
8466 * @piocb: Pointer to command iocb.
8467 * @sglq: Pointer to the scatter gather queue object.
8469 * This routine converts the bpl or bde that is in the IOCB
8470 * to a sgl list for the sli4 hardware. The physical address
8471 * of the bpl/bde is converted back to a virtual address.
8472 * If the IOCB contains a BPL then the list of BDE's is
8473 * converted to sli4_sge's. If the IOCB contains a single
8474 * BDE then it is converted to a single sli_sge.
8475 * The IOCB is still in cpu endianess so the contents of
8476 * the bpl can be used without byte swapping.
8478 * Returns valid XRI = Success, NO_XRI = Failure.
8481 lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
8482 struct lpfc_sglq *sglq)
8484 uint16_t xritag = NO_XRI;
8485 struct ulp_bde64 *bpl = NULL;
8486 struct ulp_bde64 bde;
8487 struct sli4_sge *sgl = NULL;
8488 struct lpfc_dmabuf *dmabuf;
8492 uint32_t offset = 0; /* accumulated offset in the sg request list */
8493 int inbound = 0; /* number of sg reply entries inbound from firmware */
8495 if (!piocbq || !sglq)
8498 sgl = (struct sli4_sge *)sglq->sgl;
8499 icmd = &piocbq->iocb;
8500 if (icmd->ulpCommand == CMD_XMIT_BLS_RSP64_CX)
8501 return sglq->sli4_xritag;
8502 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
8503 numBdes = icmd->un.genreq64.bdl.bdeSize /
8504 sizeof(struct ulp_bde64);
8505 /* The addrHigh and addrLow fields within the IOCB
8506 * have not been byteswapped yet so there is no
8507 * need to swap them back.
8509 if (piocbq->context3)
8510 dmabuf = (struct lpfc_dmabuf *)piocbq->context3;
8514 bpl = (struct ulp_bde64 *)dmabuf->virt;
8518 for (i = 0; i < numBdes; i++) {
8519 /* Should already be byte swapped. */
8520 sgl->addr_hi = bpl->addrHigh;
8521 sgl->addr_lo = bpl->addrLow;
8523 sgl->word2 = le32_to_cpu(sgl->word2);
8524 if ((i+1) == numBdes)
8525 bf_set(lpfc_sli4_sge_last, sgl, 1);
8527 bf_set(lpfc_sli4_sge_last, sgl, 0);
8528 /* swap the size field back to the cpu so we
8529 * can assign it to the sgl.
8531 bde.tus.w = le32_to_cpu(bpl->tus.w);
8532 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
8533 /* The offsets in the sgl need to be accumulated
8534 * separately for the request and reply lists.
8535 * The request is always first, the reply follows.
8537 if (piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) {
8538 /* add up the reply sg entries */
8539 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
8541 /* first inbound? reset the offset */
8544 bf_set(lpfc_sli4_sge_offset, sgl, offset);
8545 bf_set(lpfc_sli4_sge_type, sgl,
8546 LPFC_SGE_TYPE_DATA);
8547 offset += bde.tus.f.bdeSize;
8549 sgl->word2 = cpu_to_le32(sgl->word2);
8553 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
8554 /* The addrHigh and addrLow fields of the BDE have not
8555 * been byteswapped yet so they need to be swapped
8556 * before putting them in the sgl.
8559 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
8561 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
8562 sgl->word2 = le32_to_cpu(sgl->word2);
8563 bf_set(lpfc_sli4_sge_last, sgl, 1);
8564 sgl->word2 = cpu_to_le32(sgl->word2);
8566 cpu_to_le32(icmd->un.genreq64.bdl.bdeSize);
8568 return sglq->sli4_xritag;
8572 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
8573 * @phba: Pointer to HBA context object.
8574 * @piocb: Pointer to command iocb.
8575 * @wqe: Pointer to the work queue entry.
8577 * This routine converts the iocb command to its Work Queue Entry
8578 * equivalent. The wqe pointer should not have any fields set when
8579 * this routine is called because it will memcpy over them.
8580 * This routine does not set the CQ_ID or the WQEC bits in the
8583 * Returns: 0 = Success, IOCB_ERROR = Failure.
8586 lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
8587 union lpfc_wqe *wqe)
8589 uint32_t xmit_len = 0, total_len = 0;
8593 uint8_t command_type = ELS_COMMAND_NON_FIP;
8596 uint16_t abrt_iotag;
8597 struct lpfc_iocbq *abrtiocbq;
8598 struct ulp_bde64 *bpl = NULL;
8599 uint32_t els_id = LPFC_ELS_ID_DEFAULT;
8601 struct ulp_bde64 bde;
8602 struct lpfc_nodelist *ndlp;
8606 fip = phba->hba_flag & HBA_FIP_SUPPORT;
8607 /* The fcp commands will set command type */
8608 if (iocbq->iocb_flag & LPFC_IO_FCP)
8609 command_type = FCP_COMMAND;
8610 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
8611 command_type = ELS_COMMAND_FIP;
8613 command_type = ELS_COMMAND_NON_FIP;
8615 if (phba->fcp_embed_io)
8616 memset(wqe, 0, sizeof(union lpfc_wqe128));
8617 /* Some of the fields are in the right position already */
8618 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
8619 wqe->generic.wqe_com.word7 = 0; /* The ct field has moved so reset */
8620 wqe->generic.wqe_com.word10 = 0;
8622 abort_tag = (uint32_t) iocbq->iotag;
8623 xritag = iocbq->sli4_xritag;
8624 /* words0-2 bpl convert bde */
8625 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
8626 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
8627 sizeof(struct ulp_bde64);
8628 bpl = (struct ulp_bde64 *)
8629 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
8633 /* Should already be byte swapped. */
8634 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
8635 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
8636 /* swap the size field back to the cpu so we
8637 * can assign it to the sgl.
8639 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
8640 xmit_len = wqe->generic.bde.tus.f.bdeSize;
8642 for (i = 0; i < numBdes; i++) {
8643 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
8644 total_len += bde.tus.f.bdeSize;
8647 xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
8649 iocbq->iocb.ulpIoTag = iocbq->iotag;
8650 cmnd = iocbq->iocb.ulpCommand;
8652 switch (iocbq->iocb.ulpCommand) {
8653 case CMD_ELS_REQUEST64_CR:
8654 if (iocbq->iocb_flag & LPFC_IO_LIBDFC)
8655 ndlp = iocbq->context_un.ndlp;
8657 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8658 if (!iocbq->iocb.ulpLe) {
8659 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8660 "2007 Only Limited Edition cmd Format"
8661 " supported 0x%x\n",
8662 iocbq->iocb.ulpCommand);
8666 wqe->els_req.payload_len = xmit_len;
8667 /* Els_reguest64 has a TMO */
8668 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
8669 iocbq->iocb.ulpTimeout);
8670 /* Need a VF for word 4 set the vf bit*/
8671 bf_set(els_req64_vf, &wqe->els_req, 0);
8672 /* And a VFID for word 12 */
8673 bf_set(els_req64_vfid, &wqe->els_req, 0);
8674 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
8675 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8676 iocbq->iocb.ulpContext);
8677 bf_set(wqe_ct, &wqe->els_req.wqe_com, ct);
8678 bf_set(wqe_pu, &wqe->els_req.wqe_com, 0);
8679 /* CCP CCPE PV PRI in word10 were set in the memcpy */
8680 if (command_type == ELS_COMMAND_FIP)
8681 els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
8682 >> LPFC_FIP_ELS_ID_SHIFT);
8683 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
8684 iocbq->context2)->virt);
8685 if_type = bf_get(lpfc_sli_intf_if_type,
8686 &phba->sli4_hba.sli_intf);
8687 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8688 if (pcmd && (*pcmd == ELS_CMD_FLOGI ||
8689 *pcmd == ELS_CMD_SCR ||
8690 *pcmd == ELS_CMD_FDISC ||
8691 *pcmd == ELS_CMD_LOGO ||
8692 *pcmd == ELS_CMD_PLOGI)) {
8693 bf_set(els_req64_sp, &wqe->els_req, 1);
8694 bf_set(els_req64_sid, &wqe->els_req,
8695 iocbq->vport->fc_myDID);
8696 if ((*pcmd == ELS_CMD_FLOGI) &&
8697 !(phba->fc_topology ==
8698 LPFC_TOPOLOGY_LOOP))
8699 bf_set(els_req64_sid, &wqe->els_req, 0);
8700 bf_set(wqe_ct, &wqe->els_req.wqe_com, 1);
8701 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8702 phba->vpi_ids[iocbq->vport->vpi]);
8703 } else if (pcmd && iocbq->context1) {
8704 bf_set(wqe_ct, &wqe->els_req.wqe_com, 0);
8705 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8706 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8709 bf_set(wqe_temp_rpi, &wqe->els_req.wqe_com,
8710 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8711 bf_set(wqe_els_id, &wqe->els_req.wqe_com, els_id);
8712 bf_set(wqe_dbde, &wqe->els_req.wqe_com, 1);
8713 bf_set(wqe_iod, &wqe->els_req.wqe_com, LPFC_WQE_IOD_READ);
8714 bf_set(wqe_qosd, &wqe->els_req.wqe_com, 1);
8715 bf_set(wqe_lenloc, &wqe->els_req.wqe_com, LPFC_WQE_LENLOC_NONE);
8716 bf_set(wqe_ebde_cnt, &wqe->els_req.wqe_com, 0);
8717 wqe->els_req.max_response_payload_len = total_len - xmit_len;
8719 case CMD_XMIT_SEQUENCE64_CX:
8720 bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com,
8721 iocbq->iocb.un.ulpWord[3]);
8722 bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com,
8723 iocbq->iocb.unsli3.rcvsli3.ox_id);
8724 /* The entire sequence is transmitted for this IOCB */
8725 xmit_len = total_len;
8726 cmnd = CMD_XMIT_SEQUENCE64_CR;
8727 if (phba->link_flag & LS_LOOPBACK_MODE)
8728 bf_set(wqe_xo, &wqe->xmit_sequence.wge_ctl, 1);
8729 case CMD_XMIT_SEQUENCE64_CR:
8730 /* word3 iocb=io_tag32 wqe=reserved */
8731 wqe->xmit_sequence.rsvd3 = 0;
8732 /* word4 relative_offset memcpy */
8733 /* word5 r_ctl/df_ctl memcpy */
8734 bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0);
8735 bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1);
8736 bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com,
8737 LPFC_WQE_IOD_WRITE);
8738 bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com,
8739 LPFC_WQE_LENLOC_WORD12);
8740 bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0);
8741 wqe->xmit_sequence.xmit_len = xmit_len;
8742 command_type = OTHER_COMMAND;
8744 case CMD_XMIT_BCAST64_CN:
8745 /* word3 iocb=iotag32 wqe=seq_payload_len */
8746 wqe->xmit_bcast64.seq_payload_len = xmit_len;
8747 /* word4 iocb=rsvd wqe=rsvd */
8748 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
8749 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
8750 bf_set(wqe_ct, &wqe->xmit_bcast64.wqe_com,
8751 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8752 bf_set(wqe_dbde, &wqe->xmit_bcast64.wqe_com, 1);
8753 bf_set(wqe_iod, &wqe->xmit_bcast64.wqe_com, LPFC_WQE_IOD_WRITE);
8754 bf_set(wqe_lenloc, &wqe->xmit_bcast64.wqe_com,
8755 LPFC_WQE_LENLOC_WORD3);
8756 bf_set(wqe_ebde_cnt, &wqe->xmit_bcast64.wqe_com, 0);
8758 case CMD_FCP_IWRITE64_CR:
8759 command_type = FCP_COMMAND_DATA_OUT;
8760 /* word3 iocb=iotag wqe=payload_offset_len */
8761 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8762 bf_set(payload_offset_len, &wqe->fcp_iwrite,
8763 xmit_len + sizeof(struct fcp_rsp));
8764 bf_set(cmd_buff_len, &wqe->fcp_iwrite,
8766 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8767 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8768 bf_set(wqe_erp, &wqe->fcp_iwrite.wqe_com,
8769 iocbq->iocb.ulpFCP2Rcvy);
8770 bf_set(wqe_lnk, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpXS);
8771 /* Always open the exchange */
8772 bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE);
8773 bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com,
8774 LPFC_WQE_LENLOC_WORD4);
8775 bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpPU);
8776 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 1);
8777 if (iocbq->iocb_flag & LPFC_IO_OAS) {
8778 bf_set(wqe_oas, &wqe->fcp_iwrite.wqe_com, 1);
8779 bf_set(wqe_ccpe, &wqe->fcp_iwrite.wqe_com, 1);
8780 if (iocbq->priority) {
8781 bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
8782 (iocbq->priority << 1));
8784 bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
8785 (phba->cfg_XLanePriority << 1));
8788 /* Note, word 10 is already initialized to 0 */
8790 if (phba->fcp_embed_io) {
8791 struct lpfc_scsi_buf *lpfc_cmd;
8792 struct sli4_sge *sgl;
8793 union lpfc_wqe128 *wqe128;
8794 struct fcp_cmnd *fcp_cmnd;
8797 /* 128 byte wqe support here */
8798 wqe128 = (union lpfc_wqe128 *)wqe;
8800 lpfc_cmd = iocbq->context1;
8801 sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl;
8802 fcp_cmnd = lpfc_cmd->fcp_cmnd;
8804 /* Word 0-2 - FCP_CMND */
8805 wqe128->generic.bde.tus.f.bdeFlags =
8806 BUFF_TYPE_BDE_IMMED;
8807 wqe128->generic.bde.tus.f.bdeSize = sgl->sge_len;
8808 wqe128->generic.bde.addrHigh = 0;
8809 wqe128->generic.bde.addrLow = 88; /* Word 22 */
8811 bf_set(wqe_wqes, &wqe128->fcp_iwrite.wqe_com, 1);
8813 /* Word 22-29 FCP CMND Payload */
8814 ptr = &wqe128->words[22];
8815 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
8818 case CMD_FCP_IREAD64_CR:
8819 /* word3 iocb=iotag wqe=payload_offset_len */
8820 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8821 bf_set(payload_offset_len, &wqe->fcp_iread,
8822 xmit_len + sizeof(struct fcp_rsp));
8823 bf_set(cmd_buff_len, &wqe->fcp_iread,
8825 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8826 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8827 bf_set(wqe_erp, &wqe->fcp_iread.wqe_com,
8828 iocbq->iocb.ulpFCP2Rcvy);
8829 bf_set(wqe_lnk, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpXS);
8830 /* Always open the exchange */
8831 bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ);
8832 bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com,
8833 LPFC_WQE_LENLOC_WORD4);
8834 bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpPU);
8835 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 1);
8836 if (iocbq->iocb_flag & LPFC_IO_OAS) {
8837 bf_set(wqe_oas, &wqe->fcp_iread.wqe_com, 1);
8838 bf_set(wqe_ccpe, &wqe->fcp_iread.wqe_com, 1);
8839 if (iocbq->priority) {
8840 bf_set(wqe_ccp, &wqe->fcp_iread.wqe_com,
8841 (iocbq->priority << 1));
8843 bf_set(wqe_ccp, &wqe->fcp_iread.wqe_com,
8844 (phba->cfg_XLanePriority << 1));
8847 /* Note, word 10 is already initialized to 0 */
8849 if (phba->fcp_embed_io) {
8850 struct lpfc_scsi_buf *lpfc_cmd;
8851 struct sli4_sge *sgl;
8852 union lpfc_wqe128 *wqe128;
8853 struct fcp_cmnd *fcp_cmnd;
8856 /* 128 byte wqe support here */
8857 wqe128 = (union lpfc_wqe128 *)wqe;
8859 lpfc_cmd = iocbq->context1;
8860 sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl;
8861 fcp_cmnd = lpfc_cmd->fcp_cmnd;
8863 /* Word 0-2 - FCP_CMND */
8864 wqe128->generic.bde.tus.f.bdeFlags =
8865 BUFF_TYPE_BDE_IMMED;
8866 wqe128->generic.bde.tus.f.bdeSize = sgl->sge_len;
8867 wqe128->generic.bde.addrHigh = 0;
8868 wqe128->generic.bde.addrLow = 88; /* Word 22 */
8870 bf_set(wqe_wqes, &wqe128->fcp_iread.wqe_com, 1);
8872 /* Word 22-29 FCP CMND Payload */
8873 ptr = &wqe128->words[22];
8874 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
8877 case CMD_FCP_ICMND64_CR:
8878 /* word3 iocb=iotag wqe=payload_offset_len */
8879 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8880 bf_set(payload_offset_len, &wqe->fcp_icmd,
8881 xmit_len + sizeof(struct fcp_rsp));
8882 bf_set(cmd_buff_len, &wqe->fcp_icmd,
8884 /* word3 iocb=IO_TAG wqe=reserved */
8885 bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0);
8886 /* Always open the exchange */
8887 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 1);
8888 bf_set(wqe_iod, &wqe->fcp_icmd.wqe_com, LPFC_WQE_IOD_WRITE);
8889 bf_set(wqe_qosd, &wqe->fcp_icmd.wqe_com, 1);
8890 bf_set(wqe_lenloc, &wqe->fcp_icmd.wqe_com,
8891 LPFC_WQE_LENLOC_NONE);
8892 bf_set(wqe_erp, &wqe->fcp_icmd.wqe_com,
8893 iocbq->iocb.ulpFCP2Rcvy);
8894 if (iocbq->iocb_flag & LPFC_IO_OAS) {
8895 bf_set(wqe_oas, &wqe->fcp_icmd.wqe_com, 1);
8896 bf_set(wqe_ccpe, &wqe->fcp_icmd.wqe_com, 1);
8897 if (iocbq->priority) {
8898 bf_set(wqe_ccp, &wqe->fcp_icmd.wqe_com,
8899 (iocbq->priority << 1));
8901 bf_set(wqe_ccp, &wqe->fcp_icmd.wqe_com,
8902 (phba->cfg_XLanePriority << 1));
8905 /* Note, word 10 is already initialized to 0 */
8907 if (phba->fcp_embed_io) {
8908 struct lpfc_scsi_buf *lpfc_cmd;
8909 struct sli4_sge *sgl;
8910 union lpfc_wqe128 *wqe128;
8911 struct fcp_cmnd *fcp_cmnd;
8914 /* 128 byte wqe support here */
8915 wqe128 = (union lpfc_wqe128 *)wqe;
8917 lpfc_cmd = iocbq->context1;
8918 sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl;
8919 fcp_cmnd = lpfc_cmd->fcp_cmnd;
8921 /* Word 0-2 - FCP_CMND */
8922 wqe128->generic.bde.tus.f.bdeFlags =
8923 BUFF_TYPE_BDE_IMMED;
8924 wqe128->generic.bde.tus.f.bdeSize = sgl->sge_len;
8925 wqe128->generic.bde.addrHigh = 0;
8926 wqe128->generic.bde.addrLow = 88; /* Word 22 */
8928 bf_set(wqe_wqes, &wqe128->fcp_icmd.wqe_com, 1);
8930 /* Word 22-29 FCP CMND Payload */
8931 ptr = &wqe128->words[22];
8932 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
8935 case CMD_GEN_REQUEST64_CR:
8936 /* For this command calculate the xmit length of the
8940 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
8941 sizeof(struct ulp_bde64);
8942 for (i = 0; i < numBdes; i++) {
8943 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
8944 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
8946 xmit_len += bde.tus.f.bdeSize;
8948 /* word3 iocb=IO_TAG wqe=request_payload_len */
8949 wqe->gen_req.request_payload_len = xmit_len;
8950 /* word4 iocb=parameter wqe=relative_offset memcpy */
8951 /* word5 [rctl, type, df_ctl, la] copied in memcpy */
8952 /* word6 context tag copied in memcpy */
8953 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
8954 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
8955 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8956 "2015 Invalid CT %x command 0x%x\n",
8957 ct, iocbq->iocb.ulpCommand);
8960 bf_set(wqe_ct, &wqe->gen_req.wqe_com, 0);
8961 bf_set(wqe_tmo, &wqe->gen_req.wqe_com, iocbq->iocb.ulpTimeout);
8962 bf_set(wqe_pu, &wqe->gen_req.wqe_com, iocbq->iocb.ulpPU);
8963 bf_set(wqe_dbde, &wqe->gen_req.wqe_com, 1);
8964 bf_set(wqe_iod, &wqe->gen_req.wqe_com, LPFC_WQE_IOD_READ);
8965 bf_set(wqe_qosd, &wqe->gen_req.wqe_com, 1);
8966 bf_set(wqe_lenloc, &wqe->gen_req.wqe_com, LPFC_WQE_LENLOC_NONE);
8967 bf_set(wqe_ebde_cnt, &wqe->gen_req.wqe_com, 0);
8968 wqe->gen_req.max_response_payload_len = total_len - xmit_len;
8969 command_type = OTHER_COMMAND;
8971 case CMD_XMIT_ELS_RSP64_CX:
8972 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8973 /* words0-2 BDE memcpy */
8974 /* word3 iocb=iotag32 wqe=response_payload_len */
8975 wqe->xmit_els_rsp.response_payload_len = xmit_len;
8977 wqe->xmit_els_rsp.word4 = 0;
8978 /* word5 iocb=rsvd wge=did */
8979 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
8980 iocbq->iocb.un.xseq64.xmit_els_remoteID);
8982 if_type = bf_get(lpfc_sli_intf_if_type,
8983 &phba->sli4_hba.sli_intf);
8984 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8985 if (iocbq->vport->fc_flag & FC_PT2PT) {
8986 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
8987 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
8988 iocbq->vport->fc_myDID);
8989 if (iocbq->vport->fc_myDID == Fabric_DID) {
8991 &wqe->xmit_els_rsp.wqe_dest, 0);
8995 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com,
8996 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8997 bf_set(wqe_pu, &wqe->xmit_els_rsp.wqe_com, iocbq->iocb.ulpPU);
8998 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
8999 iocbq->iocb.unsli3.rcvsli3.ox_id);
9000 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
9001 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
9002 phba->vpi_ids[iocbq->vport->vpi]);
9003 bf_set(wqe_dbde, &wqe->xmit_els_rsp.wqe_com, 1);
9004 bf_set(wqe_iod, &wqe->xmit_els_rsp.wqe_com, LPFC_WQE_IOD_WRITE);
9005 bf_set(wqe_qosd, &wqe->xmit_els_rsp.wqe_com, 1);
9006 bf_set(wqe_lenloc, &wqe->xmit_els_rsp.wqe_com,
9007 LPFC_WQE_LENLOC_WORD3);
9008 bf_set(wqe_ebde_cnt, &wqe->xmit_els_rsp.wqe_com, 0);
9009 bf_set(wqe_rsp_temp_rpi, &wqe->xmit_els_rsp,
9010 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
9011 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
9012 iocbq->context2)->virt);
9013 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
9014 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
9015 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
9016 iocbq->vport->fc_myDID);
9017 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com, 1);
9018 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
9019 phba->vpi_ids[phba->pport->vpi]);
9021 command_type = OTHER_COMMAND;
9023 case CMD_CLOSE_XRI_CN:
9024 case CMD_ABORT_XRI_CN:
9025 case CMD_ABORT_XRI_CX:
9026 /* words 0-2 memcpy should be 0 rserved */
9027 /* port will send abts */
9028 abrt_iotag = iocbq->iocb.un.acxri.abortContextTag;
9029 if (abrt_iotag != 0 && abrt_iotag <= phba->sli.last_iotag) {
9030 abrtiocbq = phba->sli.iocbq_lookup[abrt_iotag];
9031 fip = abrtiocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK;
9035 if ((iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN) || fip)
9037 * The link is down, or the command was ELS_FIP
9038 * so the fw does not need to send abts
9041 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
9043 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
9044 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
9045 /* word5 iocb=CONTEXT_TAG|IO_TAG wqe=reserved */
9046 wqe->abort_cmd.rsrvd5 = 0;
9047 bf_set(wqe_ct, &wqe->abort_cmd.wqe_com,
9048 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
9049 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
9051 * The abort handler will send us CMD_ABORT_XRI_CN or
9052 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
9054 bf_set(wqe_cmnd, &wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
9055 bf_set(wqe_qosd, &wqe->abort_cmd.wqe_com, 1);
9056 bf_set(wqe_lenloc, &wqe->abort_cmd.wqe_com,
9057 LPFC_WQE_LENLOC_NONE);
9058 cmnd = CMD_ABORT_XRI_CX;
9059 command_type = OTHER_COMMAND;
9062 case CMD_XMIT_BLS_RSP64_CX:
9063 ndlp = (struct lpfc_nodelist *)iocbq->context1;
9064 /* As BLS ABTS RSP WQE is very different from other WQEs,
9065 * we re-construct this WQE here based on information in
9066 * iocbq from scratch.
9068 memset(wqe, 0, sizeof(union lpfc_wqe));
9069 /* OX_ID is invariable to who sent ABTS to CT exchange */
9070 bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
9071 bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_rsp));
9072 if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_rsp) ==
9073 LPFC_ABTS_UNSOL_INT) {
9074 /* ABTS sent by initiator to CT exchange, the
9075 * RX_ID field will be filled with the newly
9076 * allocated responder XRI.
9078 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
9079 iocbq->sli4_xritag);
9081 /* ABTS sent by responder to CT exchange, the
9082 * RX_ID field will be filled with the responder
9085 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
9086 bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_rsp));
9088 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
9089 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
9092 bf_set(wqe_els_did, &wqe->xmit_bls_rsp.wqe_dest,
9094 bf_set(xmit_bls_rsp64_temprpi, &wqe->xmit_bls_rsp,
9095 iocbq->iocb.ulpContext);
9096 bf_set(wqe_ct, &wqe->xmit_bls_rsp.wqe_com, 1);
9097 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
9098 phba->vpi_ids[phba->pport->vpi]);
9099 bf_set(wqe_qosd, &wqe->xmit_bls_rsp.wqe_com, 1);
9100 bf_set(wqe_lenloc, &wqe->xmit_bls_rsp.wqe_com,
9101 LPFC_WQE_LENLOC_NONE);
9102 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
9103 command_type = OTHER_COMMAND;
9104 if (iocbq->iocb.un.xseq64.w5.hcsw.Rctl == FC_RCTL_BA_RJT) {
9105 bf_set(xmit_bls_rsp64_rjt_vspec, &wqe->xmit_bls_rsp,
9106 bf_get(lpfc_vndr_code, &iocbq->iocb.un.bls_rsp));
9107 bf_set(xmit_bls_rsp64_rjt_expc, &wqe->xmit_bls_rsp,
9108 bf_get(lpfc_rsn_expln, &iocbq->iocb.un.bls_rsp));
9109 bf_set(xmit_bls_rsp64_rjt_rsnc, &wqe->xmit_bls_rsp,
9110 bf_get(lpfc_rsn_code, &iocbq->iocb.un.bls_rsp));
9114 case CMD_XRI_ABORTED_CX:
9115 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
9116 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
9117 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
9118 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
9119 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
9121 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9122 "2014 Invalid command 0x%x\n",
9123 iocbq->iocb.ulpCommand);
9128 if (iocbq->iocb_flag & LPFC_IO_DIF_PASS)
9129 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_PASSTHRU);
9130 else if (iocbq->iocb_flag & LPFC_IO_DIF_STRIP)
9131 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_STRIP);
9132 else if (iocbq->iocb_flag & LPFC_IO_DIF_INSERT)
9133 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_INSERT);
9134 iocbq->iocb_flag &= ~(LPFC_IO_DIF_PASS | LPFC_IO_DIF_STRIP |
9135 LPFC_IO_DIF_INSERT);
9136 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
9137 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
9138 wqe->generic.wqe_com.abort_tag = abort_tag;
9139 bf_set(wqe_cmd_type, &wqe->generic.wqe_com, command_type);
9140 bf_set(wqe_cmnd, &wqe->generic.wqe_com, cmnd);
9141 bf_set(wqe_class, &wqe->generic.wqe_com, iocbq->iocb.ulpClass);
9142 bf_set(wqe_cqid, &wqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
9147 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
9148 * @phba: Pointer to HBA context object.
9149 * @ring_number: SLI ring number to issue iocb on.
9150 * @piocb: Pointer to command iocb.
9151 * @flag: Flag indicating if this command can be put into txq.
9153 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
9154 * an iocb command to an HBA with SLI-4 interface spec.
9156 * This function is called with hbalock held. The function will return success
9157 * after it successfully submit the iocb to firmware or after adding to the
9161 __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
9162 struct lpfc_iocbq *piocb, uint32_t flag)
9164 struct lpfc_sglq *sglq;
9165 union lpfc_wqe *wqe;
9166 union lpfc_wqe128 wqe128;
9167 struct lpfc_queue *wq;
9168 struct lpfc_sli_ring *pring;
9171 if ((piocb->iocb_flag & LPFC_IO_FCP) ||
9172 (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
9173 if (!phba->cfg_fof || (!(piocb->iocb_flag & LPFC_IO_OAS)))
9174 wq = phba->sli4_hba.fcp_wq[piocb->hba_wqidx];
9176 wq = phba->sli4_hba.oas_wq;
9178 wq = phba->sli4_hba.els_wq;
9181 /* Get corresponding ring */
9185 * The WQE can be either 64 or 128 bytes,
9186 * so allocate space on the stack assuming the largest.
9188 wqe = (union lpfc_wqe *)&wqe128;
9190 lockdep_assert_held(&phba->hbalock);
9192 if (piocb->sli4_xritag == NO_XRI) {
9193 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
9194 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
9197 if (!list_empty(&pring->txq)) {
9198 if (!(flag & SLI_IOCB_RET_IOCB)) {
9199 __lpfc_sli_ringtx_put(phba,
9201 return IOCB_SUCCESS;
9206 sglq = __lpfc_sli_get_els_sglq(phba, piocb);
9208 if (!(flag & SLI_IOCB_RET_IOCB)) {
9209 __lpfc_sli_ringtx_put(phba,
9212 return IOCB_SUCCESS;
9218 } else if (piocb->iocb_flag & LPFC_IO_FCP)
9219 /* These IO's already have an XRI and a mapped sgl. */
9223 * This is a continuation of a commandi,(CX) so this
9224 * sglq is on the active list
9226 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_lxritag);
9232 piocb->sli4_lxritag = sglq->sli4_lxritag;
9233 piocb->sli4_xritag = sglq->sli4_xritag;
9234 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocb, sglq))
9238 if (lpfc_sli4_iocb2wqe(phba, piocb, wqe))
9241 if (lpfc_sli4_wq_put(wq, wqe))
9243 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
9249 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
9251 * This routine wraps the actual lockless version for issusing IOCB function
9252 * pointer from the lpfc_hba struct.
9255 * IOCB_ERROR - Error
9256 * IOCB_SUCCESS - Success
9260 __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
9261 struct lpfc_iocbq *piocb, uint32_t flag)
9263 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
9267 * lpfc_sli_api_table_setup - Set up sli api function jump table
9268 * @phba: The hba struct for which this call is being executed.
9269 * @dev_grp: The HBA PCI-Device group number.
9271 * This routine sets up the SLI interface API function jump table in @phba
9273 * Returns: 0 - success, -ENODEV - failure.
9276 lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
9280 case LPFC_PCI_DEV_LP:
9281 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
9282 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
9284 case LPFC_PCI_DEV_OC:
9285 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
9286 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
9289 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9290 "1419 Invalid HBA PCI-device group: 0x%x\n",
9295 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
9300 * lpfc_sli4_calc_ring - Calculates which ring to use
9301 * @phba: Pointer to HBA context object.
9302 * @piocb: Pointer to command iocb.
9304 * For SLI4 only, FCP IO can deferred to one fo many WQs, based on
9305 * hba_wqidx, thus we need to calculate the corresponding ring.
9306 * Since ABORTS must go on the same WQ of the command they are
9307 * aborting, we use command's hba_wqidx.
9309 struct lpfc_sli_ring *
9310 lpfc_sli4_calc_ring(struct lpfc_hba *phba, struct lpfc_iocbq *piocb)
9312 if (piocb->iocb_flag & (LPFC_IO_FCP | LPFC_USE_FCPWQIDX)) {
9313 if (!(phba->cfg_fof) ||
9314 (!(piocb->iocb_flag & LPFC_IO_FOF))) {
9315 if (unlikely(!phba->sli4_hba.fcp_wq))
9318 * for abort iocb hba_wqidx should already
9319 * be setup based on what work queue we used.
9321 if (!(piocb->iocb_flag & LPFC_USE_FCPWQIDX))
9323 lpfc_sli4_scmd_to_wqidx_distr(phba,
9325 return phba->sli4_hba.fcp_wq[piocb->hba_wqidx]->pring;
9327 if (unlikely(!phba->sli4_hba.oas_wq))
9329 piocb->hba_wqidx = 0;
9330 return phba->sli4_hba.oas_wq->pring;
9333 if (unlikely(!phba->sli4_hba.els_wq))
9335 piocb->hba_wqidx = 0;
9336 return phba->sli4_hba.els_wq->pring;
9341 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
9342 * @phba: Pointer to HBA context object.
9343 * @pring: Pointer to driver SLI ring object.
9344 * @piocb: Pointer to command iocb.
9345 * @flag: Flag indicating if this command can be put into txq.
9347 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
9348 * function. This function gets the hbalock and calls
9349 * __lpfc_sli_issue_iocb function and will return the error returned
9350 * by __lpfc_sli_issue_iocb function. This wrapper is used by
9351 * functions which do not hold hbalock.
9354 lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
9355 struct lpfc_iocbq *piocb, uint32_t flag)
9357 struct lpfc_hba_eq_hdl *hba_eq_hdl;
9358 struct lpfc_sli_ring *pring;
9359 struct lpfc_queue *fpeq;
9360 struct lpfc_eqe *eqe;
9361 unsigned long iflags;
9364 if (phba->sli_rev == LPFC_SLI_REV4) {
9365 pring = lpfc_sli4_calc_ring(phba, piocb);
9366 if (unlikely(pring == NULL))
9369 spin_lock_irqsave(&pring->ring_lock, iflags);
9370 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
9371 spin_unlock_irqrestore(&pring->ring_lock, iflags);
9373 if (lpfc_fcp_look_ahead && (piocb->iocb_flag & LPFC_IO_FCP)) {
9374 idx = piocb->hba_wqidx;
9375 hba_eq_hdl = &phba->sli4_hba.hba_eq_hdl[idx];
9377 if (atomic_dec_and_test(&hba_eq_hdl->hba_eq_in_use)) {
9379 /* Get associated EQ with this index */
9380 fpeq = phba->sli4_hba.hba_eq[idx];
9382 /* Turn off interrupts from this EQ */
9383 lpfc_sli4_eq_clr_intr(fpeq);
9386 * Process all the events on FCP EQ
9388 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
9389 lpfc_sli4_hba_handle_eqe(phba,
9391 fpeq->EQ_processed++;
9394 /* Always clear and re-arm the EQ */
9395 lpfc_sli4_eq_release(fpeq,
9398 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
9401 /* For now, SLI2/3 will still use hbalock */
9402 spin_lock_irqsave(&phba->hbalock, iflags);
9403 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
9404 spin_unlock_irqrestore(&phba->hbalock, iflags);
9410 * lpfc_extra_ring_setup - Extra ring setup function
9411 * @phba: Pointer to HBA context object.
9413 * This function is called while driver attaches with the
9414 * HBA to setup the extra ring. The extra ring is used
9415 * only when driver needs to support target mode functionality
9416 * or IP over FC functionalities.
9418 * This function is called with no lock held. SLI3 only.
9421 lpfc_extra_ring_setup( struct lpfc_hba *phba)
9423 struct lpfc_sli *psli;
9424 struct lpfc_sli_ring *pring;
9428 /* Adjust cmd/rsp ring iocb entries more evenly */
9430 /* Take some away from the FCP ring */
9431 pring = &psli->sli3_ring[LPFC_FCP_RING];
9432 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
9433 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
9434 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
9435 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
9437 /* and give them to the extra ring */
9438 pring = &psli->sli3_ring[LPFC_EXTRA_RING];
9440 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
9441 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
9442 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
9443 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
9445 /* Setup default profile for this ring */
9446 pring->iotag_max = 4096;
9447 pring->num_mask = 1;
9448 pring->prt[0].profile = 0; /* Mask 0 */
9449 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
9450 pring->prt[0].type = phba->cfg_multi_ring_type;
9451 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
9455 /* lpfc_sli_abts_err_handler - handle a failed ABTS request from an SLI3 port.
9456 * @phba: Pointer to HBA context object.
9457 * @iocbq: Pointer to iocb object.
9459 * The async_event handler calls this routine when it receives
9460 * an ASYNC_STATUS_CN event from the port. The port generates
9461 * this event when an Abort Sequence request to an rport fails
9462 * twice in succession. The abort could be originated by the
9463 * driver or by the port. The ABTS could have been for an ELS
9464 * or FCP IO. The port only generates this event when an ABTS
9465 * fails to complete after one retry.
9468 lpfc_sli_abts_err_handler(struct lpfc_hba *phba,
9469 struct lpfc_iocbq *iocbq)
9471 struct lpfc_nodelist *ndlp = NULL;
9472 uint16_t rpi = 0, vpi = 0;
9473 struct lpfc_vport *vport = NULL;
9475 /* The rpi in the ulpContext is vport-sensitive. */
9476 vpi = iocbq->iocb.un.asyncstat.sub_ctxt_tag;
9477 rpi = iocbq->iocb.ulpContext;
9479 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9480 "3092 Port generated ABTS async event "
9481 "on vpi %d rpi %d status 0x%x\n",
9482 vpi, rpi, iocbq->iocb.ulpStatus);
9484 vport = lpfc_find_vport_by_vpid(phba, vpi);
9487 ndlp = lpfc_findnode_rpi(vport, rpi);
9488 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
9491 if (iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT)
9492 lpfc_sli_abts_recover_port(vport, ndlp);
9496 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9497 "3095 Event Context not found, no "
9498 "action on vpi %d rpi %d status 0x%x, reason 0x%x\n",
9499 iocbq->iocb.ulpContext, iocbq->iocb.ulpStatus,
9503 /* lpfc_sli4_abts_err_handler - handle a failed ABTS request from an SLI4 port.
9504 * @phba: pointer to HBA context object.
9505 * @ndlp: nodelist pointer for the impacted rport.
9506 * @axri: pointer to the wcqe containing the failed exchange.
9508 * The driver calls this routine when it receives an ABORT_XRI_FCP CQE from the
9509 * port. The port generates this event when an abort exchange request to an
9510 * rport fails twice in succession with no reply. The abort could be originated
9511 * by the driver or by the port. The ABTS could have been for an ELS or FCP IO.
9514 lpfc_sli4_abts_err_handler(struct lpfc_hba *phba,
9515 struct lpfc_nodelist *ndlp,
9516 struct sli4_wcqe_xri_aborted *axri)
9518 struct lpfc_vport *vport;
9519 uint32_t ext_status = 0;
9521 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
9522 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9523 "3115 Node Context not found, driver "
9524 "ignoring abts err event\n");
9528 vport = ndlp->vport;
9529 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9530 "3116 Port generated FCP XRI ABORT event on "
9531 "vpi %d rpi %d xri x%x status 0x%x parameter x%x\n",
9532 ndlp->vport->vpi, phba->sli4_hba.rpi_ids[ndlp->nlp_rpi],
9533 bf_get(lpfc_wcqe_xa_xri, axri),
9534 bf_get(lpfc_wcqe_xa_status, axri),
9538 * Catch the ABTS protocol failure case. Older OCe FW releases returned
9539 * LOCAL_REJECT and 0 for a failed ABTS exchange and later OCe and
9540 * LPe FW releases returned LOCAL_REJECT and SEQUENCE_TIMEOUT.
9542 ext_status = axri->parameter & IOERR_PARAM_MASK;
9543 if ((bf_get(lpfc_wcqe_xa_status, axri) == IOSTAT_LOCAL_REJECT) &&
9544 ((ext_status == IOERR_SEQUENCE_TIMEOUT) || (ext_status == 0)))
9545 lpfc_sli_abts_recover_port(vport, ndlp);
9549 * lpfc_sli_async_event_handler - ASYNC iocb handler function
9550 * @phba: Pointer to HBA context object.
9551 * @pring: Pointer to driver SLI ring object.
9552 * @iocbq: Pointer to iocb object.
9554 * This function is called by the slow ring event handler
9555 * function when there is an ASYNC event iocb in the ring.
9556 * This function is called with no lock held.
9557 * Currently this function handles only temperature related
9558 * ASYNC events. The function decodes the temperature sensor
9559 * event message and posts events for the management applications.
9562 lpfc_sli_async_event_handler(struct lpfc_hba * phba,
9563 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
9567 struct temp_event temp_event_data;
9568 struct Scsi_Host *shost;
9571 icmd = &iocbq->iocb;
9572 evt_code = icmd->un.asyncstat.evt_code;
9575 case ASYNC_TEMP_WARN:
9576 case ASYNC_TEMP_SAFE:
9577 temp_event_data.data = (uint32_t) icmd->ulpContext;
9578 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
9579 if (evt_code == ASYNC_TEMP_WARN) {
9580 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
9581 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
9582 "0347 Adapter is very hot, please take "
9583 "corrective action. temperature : %d Celsius\n",
9584 (uint32_t) icmd->ulpContext);
9586 temp_event_data.event_code = LPFC_NORMAL_TEMP;
9587 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
9588 "0340 Adapter temperature is OK now. "
9589 "temperature : %d Celsius\n",
9590 (uint32_t) icmd->ulpContext);
9593 /* Send temperature change event to applications */
9594 shost = lpfc_shost_from_vport(phba->pport);
9595 fc_host_post_vendor_event(shost, fc_get_event_number(),
9596 sizeof(temp_event_data), (char *) &temp_event_data,
9599 case ASYNC_STATUS_CN:
9600 lpfc_sli_abts_err_handler(phba, iocbq);
9603 iocb_w = (uint32_t *) icmd;
9604 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9605 "0346 Ring %d handler: unexpected ASYNC_STATUS"
9607 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
9608 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
9609 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
9610 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
9611 pring->ringno, icmd->un.asyncstat.evt_code,
9612 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
9613 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
9614 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
9615 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
9623 * lpfc_sli4_setup - SLI ring setup function
9624 * @phba: Pointer to HBA context object.
9626 * lpfc_sli_setup sets up rings of the SLI interface with
9627 * number of iocbs per ring and iotags. This function is
9628 * called while driver attach to the HBA and before the
9629 * interrupts are enabled. So there is no need for locking.
9631 * This function always returns 0.
9634 lpfc_sli4_setup(struct lpfc_hba *phba)
9636 struct lpfc_sli_ring *pring;
9638 pring = phba->sli4_hba.els_wq->pring;
9639 pring->num_mask = LPFC_MAX_RING_MASK;
9640 pring->prt[0].profile = 0; /* Mask 0 */
9641 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
9642 pring->prt[0].type = FC_TYPE_ELS;
9643 pring->prt[0].lpfc_sli_rcv_unsol_event =
9644 lpfc_els_unsol_event;
9645 pring->prt[1].profile = 0; /* Mask 1 */
9646 pring->prt[1].rctl = FC_RCTL_ELS_REP;
9647 pring->prt[1].type = FC_TYPE_ELS;
9648 pring->prt[1].lpfc_sli_rcv_unsol_event =
9649 lpfc_els_unsol_event;
9650 pring->prt[2].profile = 0; /* Mask 2 */
9651 /* NameServer Inquiry */
9652 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
9654 pring->prt[2].type = FC_TYPE_CT;
9655 pring->prt[2].lpfc_sli_rcv_unsol_event =
9656 lpfc_ct_unsol_event;
9657 pring->prt[3].profile = 0; /* Mask 3 */
9658 /* NameServer response */
9659 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
9661 pring->prt[3].type = FC_TYPE_CT;
9662 pring->prt[3].lpfc_sli_rcv_unsol_event =
9663 lpfc_ct_unsol_event;
9668 * lpfc_sli_setup - SLI ring setup function
9669 * @phba: Pointer to HBA context object.
9671 * lpfc_sli_setup sets up rings of the SLI interface with
9672 * number of iocbs per ring and iotags. This function is
9673 * called while driver attach to the HBA and before the
9674 * interrupts are enabled. So there is no need for locking.
9676 * This function always returns 0. SLI3 only.
9679 lpfc_sli_setup(struct lpfc_hba *phba)
9681 int i, totiocbsize = 0;
9682 struct lpfc_sli *psli = &phba->sli;
9683 struct lpfc_sli_ring *pring;
9685 psli->num_rings = MAX_SLI3_CONFIGURED_RINGS;
9688 psli->iocbq_lookup = NULL;
9689 psli->iocbq_lookup_len = 0;
9690 psli->last_iotag = 0;
9692 for (i = 0; i < psli->num_rings; i++) {
9693 pring = &psli->sli3_ring[i];
9695 case LPFC_FCP_RING: /* ring 0 - FCP */
9696 /* numCiocb and numRiocb are used in config_port */
9697 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
9698 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
9699 pring->sli.sli3.numCiocb +=
9700 SLI2_IOCB_CMD_R1XTRA_ENTRIES;
9701 pring->sli.sli3.numRiocb +=
9702 SLI2_IOCB_RSP_R1XTRA_ENTRIES;
9703 pring->sli.sli3.numCiocb +=
9704 SLI2_IOCB_CMD_R3XTRA_ENTRIES;
9705 pring->sli.sli3.numRiocb +=
9706 SLI2_IOCB_RSP_R3XTRA_ENTRIES;
9707 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
9708 SLI3_IOCB_CMD_SIZE :
9710 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
9711 SLI3_IOCB_RSP_SIZE :
9713 pring->iotag_ctr = 0;
9715 (phba->cfg_hba_queue_depth * 2);
9716 pring->fast_iotag = pring->iotag_max;
9717 pring->num_mask = 0;
9719 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
9720 /* numCiocb and numRiocb are used in config_port */
9721 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
9722 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
9723 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
9724 SLI3_IOCB_CMD_SIZE :
9726 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
9727 SLI3_IOCB_RSP_SIZE :
9729 pring->iotag_max = phba->cfg_hba_queue_depth;
9730 pring->num_mask = 0;
9732 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
9733 /* numCiocb and numRiocb are used in config_port */
9734 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
9735 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
9736 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
9737 SLI3_IOCB_CMD_SIZE :
9739 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
9740 SLI3_IOCB_RSP_SIZE :
9742 pring->fast_iotag = 0;
9743 pring->iotag_ctr = 0;
9744 pring->iotag_max = 4096;
9745 pring->lpfc_sli_rcv_async_status =
9746 lpfc_sli_async_event_handler;
9747 pring->num_mask = LPFC_MAX_RING_MASK;
9748 pring->prt[0].profile = 0; /* Mask 0 */
9749 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
9750 pring->prt[0].type = FC_TYPE_ELS;
9751 pring->prt[0].lpfc_sli_rcv_unsol_event =
9752 lpfc_els_unsol_event;
9753 pring->prt[1].profile = 0; /* Mask 1 */
9754 pring->prt[1].rctl = FC_RCTL_ELS_REP;
9755 pring->prt[1].type = FC_TYPE_ELS;
9756 pring->prt[1].lpfc_sli_rcv_unsol_event =
9757 lpfc_els_unsol_event;
9758 pring->prt[2].profile = 0; /* Mask 2 */
9759 /* NameServer Inquiry */
9760 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
9762 pring->prt[2].type = FC_TYPE_CT;
9763 pring->prt[2].lpfc_sli_rcv_unsol_event =
9764 lpfc_ct_unsol_event;
9765 pring->prt[3].profile = 0; /* Mask 3 */
9766 /* NameServer response */
9767 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
9769 pring->prt[3].type = FC_TYPE_CT;
9770 pring->prt[3].lpfc_sli_rcv_unsol_event =
9771 lpfc_ct_unsol_event;
9774 totiocbsize += (pring->sli.sli3.numCiocb *
9775 pring->sli.sli3.sizeCiocb) +
9776 (pring->sli.sli3.numRiocb * pring->sli.sli3.sizeRiocb);
9778 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
9779 /* Too many cmd / rsp ring entries in SLI2 SLIM */
9780 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
9781 "SLI2 SLIM Data: x%x x%lx\n",
9782 phba->brd_no, totiocbsize,
9783 (unsigned long) MAX_SLIM_IOCB_SIZE);
9785 if (phba->cfg_multi_ring_support == 2)
9786 lpfc_extra_ring_setup(phba);
9792 * lpfc_sli4_queue_init - Queue initialization function
9793 * @phba: Pointer to HBA context object.
9795 * lpfc_sli4_queue_init sets up mailbox queues and iocb queues for each
9796 * ring. This function also initializes ring indices of each ring.
9797 * This function is called during the initialization of the SLI
9798 * interface of an HBA.
9799 * This function is called with no lock held and always returns
9803 lpfc_sli4_queue_init(struct lpfc_hba *phba)
9805 struct lpfc_sli *psli;
9806 struct lpfc_sli_ring *pring;
9810 spin_lock_irq(&phba->hbalock);
9811 INIT_LIST_HEAD(&psli->mboxq);
9812 INIT_LIST_HEAD(&psli->mboxq_cmpl);
9813 /* Initialize list headers for txq and txcmplq as double linked lists */
9814 for (i = 0; i < phba->cfg_fcp_io_channel; i++) {
9815 pring = phba->sli4_hba.fcp_wq[i]->pring;
9817 pring->ringno = LPFC_FCP_RING;
9818 INIT_LIST_HEAD(&pring->txq);
9819 INIT_LIST_HEAD(&pring->txcmplq);
9820 INIT_LIST_HEAD(&pring->iocb_continueq);
9821 spin_lock_init(&pring->ring_lock);
9823 for (i = 0; i < phba->cfg_nvme_io_channel; i++) {
9824 pring = phba->sli4_hba.nvme_wq[i]->pring;
9826 pring->ringno = LPFC_FCP_RING;
9827 INIT_LIST_HEAD(&pring->txq);
9828 INIT_LIST_HEAD(&pring->txcmplq);
9829 INIT_LIST_HEAD(&pring->iocb_continueq);
9830 spin_lock_init(&pring->ring_lock);
9832 pring = phba->sli4_hba.els_wq->pring;
9834 pring->ringno = LPFC_ELS_RING;
9835 INIT_LIST_HEAD(&pring->txq);
9836 INIT_LIST_HEAD(&pring->txcmplq);
9837 INIT_LIST_HEAD(&pring->iocb_continueq);
9838 spin_lock_init(&pring->ring_lock);
9840 if (phba->cfg_nvme_io_channel) {
9841 pring = phba->sli4_hba.nvmels_wq->pring;
9843 pring->ringno = LPFC_ELS_RING;
9844 INIT_LIST_HEAD(&pring->txq);
9845 INIT_LIST_HEAD(&pring->txcmplq);
9846 INIT_LIST_HEAD(&pring->iocb_continueq);
9847 spin_lock_init(&pring->ring_lock);
9850 if (phba->cfg_fof) {
9851 pring = phba->sli4_hba.oas_wq->pring;
9853 pring->ringno = LPFC_FCP_RING;
9854 INIT_LIST_HEAD(&pring->txq);
9855 INIT_LIST_HEAD(&pring->txcmplq);
9856 INIT_LIST_HEAD(&pring->iocb_continueq);
9857 spin_lock_init(&pring->ring_lock);
9860 spin_unlock_irq(&phba->hbalock);
9864 * lpfc_sli_queue_init - Queue initialization function
9865 * @phba: Pointer to HBA context object.
9867 * lpfc_sli_queue_init sets up mailbox queues and iocb queues for each
9868 * ring. This function also initializes ring indices of each ring.
9869 * This function is called during the initialization of the SLI
9870 * interface of an HBA.
9871 * This function is called with no lock held and always returns
9875 lpfc_sli_queue_init(struct lpfc_hba *phba)
9877 struct lpfc_sli *psli;
9878 struct lpfc_sli_ring *pring;
9882 spin_lock_irq(&phba->hbalock);
9883 INIT_LIST_HEAD(&psli->mboxq);
9884 INIT_LIST_HEAD(&psli->mboxq_cmpl);
9885 /* Initialize list headers for txq and txcmplq as double linked lists */
9886 for (i = 0; i < psli->num_rings; i++) {
9887 pring = &psli->sli3_ring[i];
9889 pring->sli.sli3.next_cmdidx = 0;
9890 pring->sli.sli3.local_getidx = 0;
9891 pring->sli.sli3.cmdidx = 0;
9892 INIT_LIST_HEAD(&pring->iocb_continueq);
9893 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
9894 INIT_LIST_HEAD(&pring->postbufq);
9896 INIT_LIST_HEAD(&pring->txq);
9897 INIT_LIST_HEAD(&pring->txcmplq);
9898 spin_lock_init(&pring->ring_lock);
9900 spin_unlock_irq(&phba->hbalock);
9904 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
9905 * @phba: Pointer to HBA context object.
9907 * This routine flushes the mailbox command subsystem. It will unconditionally
9908 * flush all the mailbox commands in the three possible stages in the mailbox
9909 * command sub-system: pending mailbox command queue; the outstanding mailbox
9910 * command; and completed mailbox command queue. It is caller's responsibility
9911 * to make sure that the driver is in the proper state to flush the mailbox
9912 * command sub-system. Namely, the posting of mailbox commands into the
9913 * pending mailbox command queue from the various clients must be stopped;
9914 * either the HBA is in a state that it will never works on the outstanding
9915 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
9916 * mailbox command has been completed.
9919 lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
9921 LIST_HEAD(completions);
9922 struct lpfc_sli *psli = &phba->sli;
9924 unsigned long iflag;
9926 /* Flush all the mailbox commands in the mbox system */
9927 spin_lock_irqsave(&phba->hbalock, iflag);
9928 /* The pending mailbox command queue */
9929 list_splice_init(&phba->sli.mboxq, &completions);
9930 /* The outstanding active mailbox command */
9931 if (psli->mbox_active) {
9932 list_add_tail(&psli->mbox_active->list, &completions);
9933 psli->mbox_active = NULL;
9934 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9936 /* The completed mailbox command queue */
9937 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
9938 spin_unlock_irqrestore(&phba->hbalock, iflag);
9940 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
9941 while (!list_empty(&completions)) {
9942 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
9943 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
9945 pmb->mbox_cmpl(phba, pmb);
9950 * lpfc_sli_host_down - Vport cleanup function
9951 * @vport: Pointer to virtual port object.
9953 * lpfc_sli_host_down is called to clean up the resources
9954 * associated with a vport before destroying virtual
9955 * port data structures.
9956 * This function does following operations:
9957 * - Free discovery resources associated with this virtual
9959 * - Free iocbs associated with this virtual port in
9961 * - Send abort for all iocb commands associated with this
9964 * This function is called with no lock held and always returns 1.
9967 lpfc_sli_host_down(struct lpfc_vport *vport)
9969 LIST_HEAD(completions);
9970 struct lpfc_hba *phba = vport->phba;
9971 struct lpfc_sli *psli = &phba->sli;
9972 struct lpfc_queue *qp = NULL;
9973 struct lpfc_sli_ring *pring;
9974 struct lpfc_iocbq *iocb, *next_iocb;
9976 unsigned long flags = 0;
9977 uint16_t prev_pring_flag;
9979 lpfc_cleanup_discovery_resources(vport);
9981 spin_lock_irqsave(&phba->hbalock, flags);
9984 * Error everything on the txq since these iocbs
9985 * have not been given to the FW yet.
9986 * Also issue ABTS for everything on the txcmplq
9988 if (phba->sli_rev != LPFC_SLI_REV4) {
9989 for (i = 0; i < psli->num_rings; i++) {
9990 pring = &psli->sli3_ring[i];
9991 prev_pring_flag = pring->flag;
9992 /* Only slow rings */
9993 if (pring->ringno == LPFC_ELS_RING) {
9994 pring->flag |= LPFC_DEFERRED_RING_EVENT;
9995 /* Set the lpfc data pending flag */
9996 set_bit(LPFC_DATA_READY, &phba->data_flags);
9998 list_for_each_entry_safe(iocb, next_iocb,
9999 &pring->txq, list) {
10000 if (iocb->vport != vport)
10002 list_move_tail(&iocb->list, &completions);
10004 list_for_each_entry_safe(iocb, next_iocb,
10005 &pring->txcmplq, list) {
10006 if (iocb->vport != vport)
10008 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
10010 pring->flag = prev_pring_flag;
10013 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
10017 if (pring == phba->sli4_hba.els_wq->pring) {
10018 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10019 /* Set the lpfc data pending flag */
10020 set_bit(LPFC_DATA_READY, &phba->data_flags);
10022 prev_pring_flag = pring->flag;
10023 spin_lock_irq(&pring->ring_lock);
10024 list_for_each_entry_safe(iocb, next_iocb,
10025 &pring->txq, list) {
10026 if (iocb->vport != vport)
10028 list_move_tail(&iocb->list, &completions);
10030 spin_unlock_irq(&pring->ring_lock);
10031 list_for_each_entry_safe(iocb, next_iocb,
10032 &pring->txcmplq, list) {
10033 if (iocb->vport != vport)
10035 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
10037 pring->flag = prev_pring_flag;
10040 spin_unlock_irqrestore(&phba->hbalock, flags);
10042 /* Cancel all the IOCBs from the completions list */
10043 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
10049 * lpfc_sli_hba_down - Resource cleanup function for the HBA
10050 * @phba: Pointer to HBA context object.
10052 * This function cleans up all iocb, buffers, mailbox commands
10053 * while shutting down the HBA. This function is called with no
10054 * lock held and always returns 1.
10055 * This function does the following to cleanup driver resources:
10056 * - Free discovery resources for each virtual port
10057 * - Cleanup any pending fabric iocbs
10058 * - Iterate through the iocb txq and free each entry
10060 * - Free up any buffer posted to the HBA
10061 * - Free mailbox commands in the mailbox queue.
10064 lpfc_sli_hba_down(struct lpfc_hba *phba)
10066 LIST_HEAD(completions);
10067 struct lpfc_sli *psli = &phba->sli;
10068 struct lpfc_queue *qp = NULL;
10069 struct lpfc_sli_ring *pring;
10070 struct lpfc_dmabuf *buf_ptr;
10071 unsigned long flags = 0;
10074 /* Shutdown the mailbox command sub-system */
10075 lpfc_sli_mbox_sys_shutdown(phba, LPFC_MBX_WAIT);
10077 lpfc_hba_down_prep(phba);
10079 lpfc_fabric_abort_hba(phba);
10081 spin_lock_irqsave(&phba->hbalock, flags);
10084 * Error everything on the txq since these iocbs
10085 * have not been given to the FW yet.
10087 if (phba->sli_rev != LPFC_SLI_REV4) {
10088 for (i = 0; i < psli->num_rings; i++) {
10089 pring = &psli->sli3_ring[i];
10090 /* Only slow rings */
10091 if (pring->ringno == LPFC_ELS_RING) {
10092 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10093 /* Set the lpfc data pending flag */
10094 set_bit(LPFC_DATA_READY, &phba->data_flags);
10096 list_splice_init(&pring->txq, &completions);
10099 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
10103 spin_lock_irq(&pring->ring_lock);
10104 list_splice_init(&pring->txq, &completions);
10105 spin_unlock_irq(&pring->ring_lock);
10106 if (pring == phba->sli4_hba.els_wq->pring) {
10107 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10108 /* Set the lpfc data pending flag */
10109 set_bit(LPFC_DATA_READY, &phba->data_flags);
10113 spin_unlock_irqrestore(&phba->hbalock, flags);
10115 /* Cancel all the IOCBs from the completions list */
10116 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
10119 spin_lock_irqsave(&phba->hbalock, flags);
10120 list_splice_init(&phba->elsbuf, &completions);
10121 phba->elsbuf_cnt = 0;
10122 phba->elsbuf_prev_cnt = 0;
10123 spin_unlock_irqrestore(&phba->hbalock, flags);
10125 while (!list_empty(&completions)) {
10126 list_remove_head(&completions, buf_ptr,
10127 struct lpfc_dmabuf, list);
10128 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
10132 /* Return any active mbox cmds */
10133 del_timer_sync(&psli->mbox_tmo);
10135 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
10136 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
10137 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
10143 * lpfc_sli_pcimem_bcopy - SLI memory copy function
10144 * @srcp: Source memory pointer.
10145 * @destp: Destination memory pointer.
10146 * @cnt: Number of words required to be copied.
10148 * This function is used for copying data between driver memory
10149 * and the SLI memory. This function also changes the endianness
10150 * of each word if native endianness is different from SLI
10151 * endianness. This function can be called with or without
10155 lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
10157 uint32_t *src = srcp;
10158 uint32_t *dest = destp;
10162 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
10164 ldata = le32_to_cpu(ldata);
10173 * lpfc_sli_bemem_bcopy - SLI memory copy function
10174 * @srcp: Source memory pointer.
10175 * @destp: Destination memory pointer.
10176 * @cnt: Number of words required to be copied.
10178 * This function is used for copying data between a data structure
10179 * with big endian representation to local endianness.
10180 * This function can be called with or without lock.
10183 lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
10185 uint32_t *src = srcp;
10186 uint32_t *dest = destp;
10190 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
10192 ldata = be32_to_cpu(ldata);
10200 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
10201 * @phba: Pointer to HBA context object.
10202 * @pring: Pointer to driver SLI ring object.
10203 * @mp: Pointer to driver buffer object.
10205 * This function is called with no lock held.
10206 * It always return zero after adding the buffer to the postbufq
10210 lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10211 struct lpfc_dmabuf *mp)
10213 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
10215 spin_lock_irq(&phba->hbalock);
10216 list_add_tail(&mp->list, &pring->postbufq);
10217 pring->postbufq_cnt++;
10218 spin_unlock_irq(&phba->hbalock);
10223 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
10224 * @phba: Pointer to HBA context object.
10226 * When HBQ is enabled, buffers are searched based on tags. This function
10227 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
10228 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
10229 * does not conflict with tags of buffer posted for unsolicited events.
10230 * The function returns the allocated tag. The function is called with
10234 lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
10236 spin_lock_irq(&phba->hbalock);
10237 phba->buffer_tag_count++;
10239 * Always set the QUE_BUFTAG_BIT to distiguish between
10240 * a tag assigned by HBQ.
10242 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
10243 spin_unlock_irq(&phba->hbalock);
10244 return phba->buffer_tag_count;
10248 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
10249 * @phba: Pointer to HBA context object.
10250 * @pring: Pointer to driver SLI ring object.
10251 * @tag: Buffer tag.
10253 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
10254 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
10255 * iocb is posted to the response ring with the tag of the buffer.
10256 * This function searches the pring->postbufq list using the tag
10257 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
10258 * iocb. If the buffer is found then lpfc_dmabuf object of the
10259 * buffer is returned to the caller else NULL is returned.
10260 * This function is called with no lock held.
10262 struct lpfc_dmabuf *
10263 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10266 struct lpfc_dmabuf *mp, *next_mp;
10267 struct list_head *slp = &pring->postbufq;
10269 /* Search postbufq, from the beginning, looking for a match on tag */
10270 spin_lock_irq(&phba->hbalock);
10271 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
10272 if (mp->buffer_tag == tag) {
10273 list_del_init(&mp->list);
10274 pring->postbufq_cnt--;
10275 spin_unlock_irq(&phba->hbalock);
10280 spin_unlock_irq(&phba->hbalock);
10281 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10282 "0402 Cannot find virtual addr for buffer tag on "
10283 "ring %d Data x%lx x%p x%p x%x\n",
10284 pring->ringno, (unsigned long) tag,
10285 slp->next, slp->prev, pring->postbufq_cnt);
10291 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
10292 * @phba: Pointer to HBA context object.
10293 * @pring: Pointer to driver SLI ring object.
10294 * @phys: DMA address of the buffer.
10296 * This function searches the buffer list using the dma_address
10297 * of unsolicited event to find the driver's lpfc_dmabuf object
10298 * corresponding to the dma_address. The function returns the
10299 * lpfc_dmabuf object if a buffer is found else it returns NULL.
10300 * This function is called by the ct and els unsolicited event
10301 * handlers to get the buffer associated with the unsolicited
10304 * This function is called with no lock held.
10306 struct lpfc_dmabuf *
10307 lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10310 struct lpfc_dmabuf *mp, *next_mp;
10311 struct list_head *slp = &pring->postbufq;
10313 /* Search postbufq, from the beginning, looking for a match on phys */
10314 spin_lock_irq(&phba->hbalock);
10315 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
10316 if (mp->phys == phys) {
10317 list_del_init(&mp->list);
10318 pring->postbufq_cnt--;
10319 spin_unlock_irq(&phba->hbalock);
10324 spin_unlock_irq(&phba->hbalock);
10325 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10326 "0410 Cannot find virtual addr for mapped buf on "
10327 "ring %d Data x%llx x%p x%p x%x\n",
10328 pring->ringno, (unsigned long long)phys,
10329 slp->next, slp->prev, pring->postbufq_cnt);
10334 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
10335 * @phba: Pointer to HBA context object.
10336 * @cmdiocb: Pointer to driver command iocb object.
10337 * @rspiocb: Pointer to driver response iocb object.
10339 * This function is the completion handler for the abort iocbs for
10340 * ELS commands. This function is called from the ELS ring event
10341 * handler with no lock held. This function frees memory resources
10342 * associated with the abort iocb.
10345 lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
10346 struct lpfc_iocbq *rspiocb)
10348 IOCB_t *irsp = &rspiocb->iocb;
10349 uint16_t abort_iotag, abort_context;
10350 struct lpfc_iocbq *abort_iocb = NULL;
10352 if (irsp->ulpStatus) {
10355 * Assume that the port already completed and returned, or
10356 * will return the iocb. Just Log the message.
10358 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
10359 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
10361 spin_lock_irq(&phba->hbalock);
10362 if (phba->sli_rev < LPFC_SLI_REV4) {
10363 if (abort_iotag != 0 &&
10364 abort_iotag <= phba->sli.last_iotag)
10366 phba->sli.iocbq_lookup[abort_iotag];
10368 /* For sli4 the abort_tag is the XRI,
10369 * so the abort routine puts the iotag of the iocb
10370 * being aborted in the context field of the abort
10373 abort_iocb = phba->sli.iocbq_lookup[abort_context];
10375 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI,
10376 "0327 Cannot abort els iocb %p "
10377 "with tag %x context %x, abort status %x, "
10379 abort_iocb, abort_iotag, abort_context,
10380 irsp->ulpStatus, irsp->un.ulpWord[4]);
10382 spin_unlock_irq(&phba->hbalock);
10384 lpfc_sli_release_iocbq(phba, cmdiocb);
10389 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
10390 * @phba: Pointer to HBA context object.
10391 * @cmdiocb: Pointer to driver command iocb object.
10392 * @rspiocb: Pointer to driver response iocb object.
10394 * The function is called from SLI ring event handler with no
10395 * lock held. This function is the completion handler for ELS commands
10396 * which are aborted. The function frees memory resources used for
10397 * the aborted ELS commands.
10400 lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
10401 struct lpfc_iocbq *rspiocb)
10403 IOCB_t *irsp = &rspiocb->iocb;
10405 /* ELS cmd tag <ulpIoTag> completes */
10406 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
10407 "0139 Ignoring ELS cmd tag x%x completion Data: "
10409 irsp->ulpIoTag, irsp->ulpStatus,
10410 irsp->un.ulpWord[4], irsp->ulpTimeout);
10411 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
10412 lpfc_ct_free_iocb(phba, cmdiocb);
10414 lpfc_els_free_iocb(phba, cmdiocb);
10419 * lpfc_sli_abort_iotag_issue - Issue abort for a command iocb
10420 * @phba: Pointer to HBA context object.
10421 * @pring: Pointer to driver SLI ring object.
10422 * @cmdiocb: Pointer to driver command iocb object.
10424 * This function issues an abort iocb for the provided command iocb down to
10425 * the port. Other than the case the outstanding command iocb is an abort
10426 * request, this function issues abort out unconditionally. This function is
10427 * called with hbalock held. The function returns 0 when it fails due to
10428 * memory allocation failure or when the command iocb is an abort request.
10431 lpfc_sli_abort_iotag_issue(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10432 struct lpfc_iocbq *cmdiocb)
10434 struct lpfc_vport *vport = cmdiocb->vport;
10435 struct lpfc_iocbq *abtsiocbp;
10436 IOCB_t *icmd = NULL;
10437 IOCB_t *iabt = NULL;
10439 unsigned long iflags;
10441 lockdep_assert_held(&phba->hbalock);
10444 * There are certain command types we don't want to abort. And we
10445 * don't want to abort commands that are already in the process of
10448 icmd = &cmdiocb->iocb;
10449 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
10450 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
10451 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
10454 /* issue ABTS for this IOCB based on iotag */
10455 abtsiocbp = __lpfc_sli_get_iocbq(phba);
10456 if (abtsiocbp == NULL)
10459 /* This signals the response to set the correct status
10460 * before calling the completion handler
10462 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
10464 iabt = &abtsiocbp->iocb;
10465 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
10466 iabt->un.acxri.abortContextTag = icmd->ulpContext;
10467 if (phba->sli_rev == LPFC_SLI_REV4) {
10468 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
10469 iabt->un.acxri.abortContextTag = cmdiocb->iotag;
10472 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
10474 iabt->ulpClass = icmd->ulpClass;
10476 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
10477 abtsiocbp->hba_wqidx = cmdiocb->hba_wqidx;
10478 if (cmdiocb->iocb_flag & LPFC_IO_FCP)
10479 abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
10480 if (cmdiocb->iocb_flag & LPFC_IO_FOF)
10481 abtsiocbp->iocb_flag |= LPFC_IO_FOF;
10483 if (phba->link_state >= LPFC_LINK_UP)
10484 iabt->ulpCommand = CMD_ABORT_XRI_CN;
10486 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
10488 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
10489 abtsiocbp->vport = vport;
10491 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
10492 "0339 Abort xri x%x, original iotag x%x, "
10493 "abort cmd iotag x%x\n",
10494 iabt->un.acxri.abortIoTag,
10495 iabt->un.acxri.abortContextTag,
10498 if (phba->sli_rev == LPFC_SLI_REV4) {
10499 pring = lpfc_sli4_calc_ring(phba, abtsiocbp);
10500 if (unlikely(pring == NULL))
10502 /* Note: both hbalock and ring_lock need to be set here */
10503 spin_lock_irqsave(&pring->ring_lock, iflags);
10504 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
10506 spin_unlock_irqrestore(&pring->ring_lock, iflags);
10508 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
10513 __lpfc_sli_release_iocbq(phba, abtsiocbp);
10516 * Caller to this routine should check for IOCB_ERROR
10517 * and handle it properly. This routine no longer removes
10518 * iocb off txcmplq and call compl in case of IOCB_ERROR.
10524 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
10525 * @phba: Pointer to HBA context object.
10526 * @pring: Pointer to driver SLI ring object.
10527 * @cmdiocb: Pointer to driver command iocb object.
10529 * This function issues an abort iocb for the provided command iocb. In case
10530 * of unloading, the abort iocb will not be issued to commands on the ELS
10531 * ring. Instead, the callback function shall be changed to those commands
10532 * so that nothing happens when them finishes. This function is called with
10533 * hbalock held. The function returns 0 when the command iocb is an abort
10537 lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10538 struct lpfc_iocbq *cmdiocb)
10540 struct lpfc_vport *vport = cmdiocb->vport;
10541 int retval = IOCB_ERROR;
10542 IOCB_t *icmd = NULL;
10544 lockdep_assert_held(&phba->hbalock);
10547 * There are certain command types we don't want to abort. And we
10548 * don't want to abort commands that are already in the process of
10551 icmd = &cmdiocb->iocb;
10552 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
10553 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
10554 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
10558 * If we're unloading, don't abort iocb on the ELS ring, but change
10559 * the callback so that nothing happens when it finishes.
10561 if ((vport->load_flag & FC_UNLOADING) &&
10562 (pring->ringno == LPFC_ELS_RING)) {
10563 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
10564 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
10566 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
10567 goto abort_iotag_exit;
10570 /* Now, we try to issue the abort to the cmdiocb out */
10571 retval = lpfc_sli_abort_iotag_issue(phba, pring, cmdiocb);
10575 * Caller to this routine should check for IOCB_ERROR
10576 * and handle it properly. This routine no longer removes
10577 * iocb off txcmplq and call compl in case of IOCB_ERROR.
10583 * lpfc_sli4_abort_nvme_io - Issue abort for a command iocb
10584 * @phba: Pointer to HBA context object.
10585 * @pring: Pointer to driver SLI ring object.
10586 * @cmdiocb: Pointer to driver command iocb object.
10588 * This function issues an abort iocb for the provided command iocb down to
10589 * the port. Other than the case the outstanding command iocb is an abort
10590 * request, this function issues abort out unconditionally. This function is
10591 * called with hbalock held. The function returns 0 when it fails due to
10592 * memory allocation failure or when the command iocb is an abort request.
10595 lpfc_sli4_abort_nvme_io(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10596 struct lpfc_iocbq *cmdiocb)
10598 struct lpfc_vport *vport = cmdiocb->vport;
10599 struct lpfc_iocbq *abtsiocbp;
10600 union lpfc_wqe *abts_wqe;
10604 * There are certain command types we don't want to abort. And we
10605 * don't want to abort commands that are already in the process of
10608 if (cmdiocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
10609 cmdiocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN ||
10610 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
10613 /* issue ABTS for this io based on iotag */
10614 abtsiocbp = __lpfc_sli_get_iocbq(phba);
10615 if (abtsiocbp == NULL)
10618 /* This signals the response to set the correct status
10619 * before calling the completion handler
10621 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
10623 /* Complete prepping the abort wqe and issue to the FW. */
10624 abts_wqe = &abtsiocbp->wqe;
10625 bf_set(abort_cmd_ia, &abts_wqe->abort_cmd, 0);
10626 bf_set(abort_cmd_criteria, &abts_wqe->abort_cmd, T_XRI_TAG);
10628 /* Explicitly set reserved fields to zero.*/
10629 abts_wqe->abort_cmd.rsrvd4 = 0;
10630 abts_wqe->abort_cmd.rsrvd5 = 0;
10632 /* WQE Common - word 6. Context is XRI tag. Set 0. */
10633 bf_set(wqe_xri_tag, &abts_wqe->abort_cmd.wqe_com, 0);
10634 bf_set(wqe_ctxt_tag, &abts_wqe->abort_cmd.wqe_com, 0);
10637 bf_set(wqe_ct, &abts_wqe->abort_cmd.wqe_com, 0);
10638 bf_set(wqe_cmnd, &abts_wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
10639 bf_set(wqe_class, &abts_wqe->abort_cmd.wqe_com,
10640 cmdiocb->iocb.ulpClass);
10642 /* word 8 - tell the FW to abort the IO associated with this
10643 * outstanding exchange ID.
10645 abts_wqe->abort_cmd.wqe_com.abort_tag = cmdiocb->sli4_xritag;
10647 /* word 9 - this is the iotag for the abts_wqe completion. */
10648 bf_set(wqe_reqtag, &abts_wqe->abort_cmd.wqe_com,
10652 bf_set(wqe_wqid, &abts_wqe->abort_cmd.wqe_com, cmdiocb->hba_wqidx);
10653 bf_set(wqe_qosd, &abts_wqe->abort_cmd.wqe_com, 1);
10654 bf_set(wqe_lenloc, &abts_wqe->abort_cmd.wqe_com, LPFC_WQE_LENLOC_NONE);
10657 bf_set(wqe_cmd_type, &abts_wqe->abort_cmd.wqe_com, OTHER_COMMAND);
10658 bf_set(wqe_wqec, &abts_wqe->abort_cmd.wqe_com, 1);
10659 bf_set(wqe_cqid, &abts_wqe->abort_cmd.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
10661 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
10662 abtsiocbp->iocb_flag |= LPFC_IO_NVME;
10663 abtsiocbp->vport = vport;
10664 abtsiocbp->wqe_cmpl = lpfc_nvme_abort_fcreq_cmpl;
10665 retval = lpfc_sli4_issue_wqe(phba, LPFC_FCP_RING, abtsiocbp);
10666 if (retval == IOCB_ERROR) {
10667 lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME,
10668 "6147 Failed abts issue_wqe with status x%x "
10670 retval, cmdiocb->sli4_xritag);
10671 lpfc_sli_release_iocbq(phba, abtsiocbp);
10675 lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME,
10676 "6148 Drv Abort NVME Request Issued for "
10677 "ox_id x%x on reqtag x%x\n",
10678 cmdiocb->sli4_xritag,
10685 * lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
10686 * @phba: pointer to lpfc HBA data structure.
10688 * This routine will abort all pending and outstanding iocbs to an HBA.
10691 lpfc_sli_hba_iocb_abort(struct lpfc_hba *phba)
10693 struct lpfc_sli *psli = &phba->sli;
10694 struct lpfc_sli_ring *pring;
10695 struct lpfc_queue *qp = NULL;
10698 if (phba->sli_rev != LPFC_SLI_REV4) {
10699 for (i = 0; i < psli->num_rings; i++) {
10700 pring = &psli->sli3_ring[i];
10701 lpfc_sli_abort_iocb_ring(phba, pring);
10705 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
10709 lpfc_sli_abort_iocb_ring(phba, pring);
10714 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
10715 * @iocbq: Pointer to driver iocb object.
10716 * @vport: Pointer to driver virtual port object.
10717 * @tgt_id: SCSI ID of the target.
10718 * @lun_id: LUN ID of the scsi device.
10719 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
10721 * This function acts as an iocb filter for functions which abort or count
10722 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
10723 * 0 if the filtering criteria is met for the given iocb and will return
10724 * 1 if the filtering criteria is not met.
10725 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
10726 * given iocb is for the SCSI device specified by vport, tgt_id and
10727 * lun_id parameter.
10728 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
10729 * given iocb is for the SCSI target specified by vport and tgt_id
10731 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
10732 * given iocb is for the SCSI host associated with the given vport.
10733 * This function is called with no locks held.
10736 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
10737 uint16_t tgt_id, uint64_t lun_id,
10738 lpfc_ctx_cmd ctx_cmd)
10740 struct lpfc_scsi_buf *lpfc_cmd;
10743 if (!(iocbq->iocb_flag & LPFC_IO_FCP))
10746 if (iocbq->vport != vport)
10749 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
10751 if (lpfc_cmd->pCmd == NULL)
10756 if ((lpfc_cmd->rdata->pnode) &&
10757 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
10758 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
10762 if ((lpfc_cmd->rdata->pnode) &&
10763 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
10766 case LPFC_CTX_HOST:
10770 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
10771 __func__, ctx_cmd);
10779 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
10780 * @vport: Pointer to virtual port.
10781 * @tgt_id: SCSI ID of the target.
10782 * @lun_id: LUN ID of the scsi device.
10783 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
10785 * This function returns number of FCP commands pending for the vport.
10786 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
10787 * commands pending on the vport associated with SCSI device specified
10788 * by tgt_id and lun_id parameters.
10789 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
10790 * commands pending on the vport associated with SCSI target specified
10791 * by tgt_id parameter.
10792 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
10793 * commands pending on the vport.
10794 * This function returns the number of iocbs which satisfy the filter.
10795 * This function is called without any lock held.
10798 lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
10799 lpfc_ctx_cmd ctx_cmd)
10801 struct lpfc_hba *phba = vport->phba;
10802 struct lpfc_iocbq *iocbq;
10805 spin_lock_irq(&phba->hbalock);
10806 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
10807 iocbq = phba->sli.iocbq_lookup[i];
10809 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
10813 spin_unlock_irq(&phba->hbalock);
10819 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
10820 * @phba: Pointer to HBA context object
10821 * @cmdiocb: Pointer to command iocb object.
10822 * @rspiocb: Pointer to response iocb object.
10824 * This function is called when an aborted FCP iocb completes. This
10825 * function is called by the ring event handler with no lock held.
10826 * This function frees the iocb.
10829 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
10830 struct lpfc_iocbq *rspiocb)
10832 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10833 "3096 ABORT_XRI_CN completing on rpi x%x "
10834 "original iotag x%x, abort cmd iotag x%x "
10835 "status 0x%x, reason 0x%x\n",
10836 cmdiocb->iocb.un.acxri.abortContextTag,
10837 cmdiocb->iocb.un.acxri.abortIoTag,
10838 cmdiocb->iotag, rspiocb->iocb.ulpStatus,
10839 rspiocb->iocb.un.ulpWord[4]);
10840 lpfc_sli_release_iocbq(phba, cmdiocb);
10845 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
10846 * @vport: Pointer to virtual port.
10847 * @pring: Pointer to driver SLI ring object.
10848 * @tgt_id: SCSI ID of the target.
10849 * @lun_id: LUN ID of the scsi device.
10850 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
10852 * This function sends an abort command for every SCSI command
10853 * associated with the given virtual port pending on the ring
10854 * filtered by lpfc_sli_validate_fcp_iocb function.
10855 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
10856 * FCP iocbs associated with lun specified by tgt_id and lun_id
10858 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
10859 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
10860 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
10861 * FCP iocbs associated with virtual port.
10862 * This function returns number of iocbs it failed to abort.
10863 * This function is called with no locks held.
10866 lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
10867 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
10869 struct lpfc_hba *phba = vport->phba;
10870 struct lpfc_iocbq *iocbq;
10871 struct lpfc_iocbq *abtsiocb;
10872 IOCB_t *cmd = NULL;
10873 int errcnt = 0, ret_val = 0;
10876 for (i = 1; i <= phba->sli.last_iotag; i++) {
10877 iocbq = phba->sli.iocbq_lookup[i];
10879 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
10884 * If the iocbq is already being aborted, don't take a second
10885 * action, but do count it.
10887 if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
10890 /* issue ABTS for this IOCB based on iotag */
10891 abtsiocb = lpfc_sli_get_iocbq(phba);
10892 if (abtsiocb == NULL) {
10897 /* indicate the IO is being aborted by the driver. */
10898 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
10900 cmd = &iocbq->iocb;
10901 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
10902 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
10903 if (phba->sli_rev == LPFC_SLI_REV4)
10904 abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
10906 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
10907 abtsiocb->iocb.ulpLe = 1;
10908 abtsiocb->iocb.ulpClass = cmd->ulpClass;
10909 abtsiocb->vport = vport;
10911 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
10912 abtsiocb->hba_wqidx = iocbq->hba_wqidx;
10913 if (iocbq->iocb_flag & LPFC_IO_FCP)
10914 abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
10915 if (iocbq->iocb_flag & LPFC_IO_FOF)
10916 abtsiocb->iocb_flag |= LPFC_IO_FOF;
10918 if (lpfc_is_link_up(phba))
10919 abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
10921 abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
10923 /* Setup callback routine and issue the command. */
10924 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
10925 ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
10927 if (ret_val == IOCB_ERROR) {
10928 lpfc_sli_release_iocbq(phba, abtsiocb);
10938 * lpfc_sli_abort_taskmgmt - issue abort for all commands on a host/target/LUN
10939 * @vport: Pointer to virtual port.
10940 * @pring: Pointer to driver SLI ring object.
10941 * @tgt_id: SCSI ID of the target.
10942 * @lun_id: LUN ID of the scsi device.
10943 * @taskmgmt_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
10945 * This function sends an abort command for every SCSI command
10946 * associated with the given virtual port pending on the ring
10947 * filtered by lpfc_sli_validate_fcp_iocb function.
10948 * When taskmgmt_cmd == LPFC_CTX_LUN, the function sends abort only to the
10949 * FCP iocbs associated with lun specified by tgt_id and lun_id
10951 * When taskmgmt_cmd == LPFC_CTX_TGT, the function sends abort only to the
10952 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
10953 * When taskmgmt_cmd == LPFC_CTX_HOST, the function sends abort to all
10954 * FCP iocbs associated with virtual port.
10955 * This function returns number of iocbs it aborted .
10956 * This function is called with no locks held right after a taskmgmt
10960 lpfc_sli_abort_taskmgmt(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
10961 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd cmd)
10963 struct lpfc_hba *phba = vport->phba;
10964 struct lpfc_scsi_buf *lpfc_cmd;
10965 struct lpfc_iocbq *abtsiocbq;
10966 struct lpfc_nodelist *ndlp;
10967 struct lpfc_iocbq *iocbq;
10969 int sum, i, ret_val;
10970 unsigned long iflags;
10971 struct lpfc_sli_ring *pring_s4;
10973 spin_lock_irq(&phba->hbalock);
10975 /* all I/Os are in process of being flushed */
10976 if (phba->hba_flag & HBA_FCP_IOQ_FLUSH) {
10977 spin_unlock_irq(&phba->hbalock);
10982 for (i = 1; i <= phba->sli.last_iotag; i++) {
10983 iocbq = phba->sli.iocbq_lookup[i];
10985 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
10990 * If the iocbq is already being aborted, don't take a second
10991 * action, but do count it.
10993 if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
10996 /* issue ABTS for this IOCB based on iotag */
10997 abtsiocbq = __lpfc_sli_get_iocbq(phba);
10998 if (abtsiocbq == NULL)
11001 icmd = &iocbq->iocb;
11002 abtsiocbq->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
11003 abtsiocbq->iocb.un.acxri.abortContextTag = icmd->ulpContext;
11004 if (phba->sli_rev == LPFC_SLI_REV4)
11005 abtsiocbq->iocb.un.acxri.abortIoTag =
11006 iocbq->sli4_xritag;
11008 abtsiocbq->iocb.un.acxri.abortIoTag = icmd->ulpIoTag;
11009 abtsiocbq->iocb.ulpLe = 1;
11010 abtsiocbq->iocb.ulpClass = icmd->ulpClass;
11011 abtsiocbq->vport = vport;
11013 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
11014 abtsiocbq->hba_wqidx = iocbq->hba_wqidx;
11015 if (iocbq->iocb_flag & LPFC_IO_FCP)
11016 abtsiocbq->iocb_flag |= LPFC_USE_FCPWQIDX;
11017 if (iocbq->iocb_flag & LPFC_IO_FOF)
11018 abtsiocbq->iocb_flag |= LPFC_IO_FOF;
11020 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
11021 ndlp = lpfc_cmd->rdata->pnode;
11023 if (lpfc_is_link_up(phba) &&
11024 (ndlp && ndlp->nlp_state == NLP_STE_MAPPED_NODE))
11025 abtsiocbq->iocb.ulpCommand = CMD_ABORT_XRI_CN;
11027 abtsiocbq->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
11029 /* Setup callback routine and issue the command. */
11030 abtsiocbq->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
11033 * Indicate the IO is being aborted by the driver and set
11034 * the caller's flag into the aborted IO.
11036 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
11038 if (phba->sli_rev == LPFC_SLI_REV4) {
11039 pring_s4 = lpfc_sli4_calc_ring(phba, iocbq);
11040 if (pring_s4 == NULL)
11042 /* Note: both hbalock and ring_lock must be set here */
11043 spin_lock_irqsave(&pring_s4->ring_lock, iflags);
11044 ret_val = __lpfc_sli_issue_iocb(phba, pring_s4->ringno,
11046 spin_unlock_irqrestore(&pring_s4->ring_lock, iflags);
11048 ret_val = __lpfc_sli_issue_iocb(phba, pring->ringno,
11053 if (ret_val == IOCB_ERROR)
11054 __lpfc_sli_release_iocbq(phba, abtsiocbq);
11058 spin_unlock_irq(&phba->hbalock);
11063 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
11064 * @phba: Pointer to HBA context object.
11065 * @cmdiocbq: Pointer to command iocb.
11066 * @rspiocbq: Pointer to response iocb.
11068 * This function is the completion handler for iocbs issued using
11069 * lpfc_sli_issue_iocb_wait function. This function is called by the
11070 * ring event handler function without any lock held. This function
11071 * can be called from both worker thread context and interrupt
11072 * context. This function also can be called from other thread which
11073 * cleans up the SLI layer objects.
11074 * This function copy the contents of the response iocb to the
11075 * response iocb memory object provided by the caller of
11076 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
11077 * sleeps for the iocb completion.
11080 lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
11081 struct lpfc_iocbq *cmdiocbq,
11082 struct lpfc_iocbq *rspiocbq)
11084 wait_queue_head_t *pdone_q;
11085 unsigned long iflags;
11086 struct lpfc_scsi_buf *lpfc_cmd;
11088 spin_lock_irqsave(&phba->hbalock, iflags);
11089 if (cmdiocbq->iocb_flag & LPFC_IO_WAKE_TMO) {
11092 * A time out has occurred for the iocb. If a time out
11093 * completion handler has been supplied, call it. Otherwise,
11094 * just free the iocbq.
11097 spin_unlock_irqrestore(&phba->hbalock, iflags);
11098 cmdiocbq->iocb_cmpl = cmdiocbq->wait_iocb_cmpl;
11099 cmdiocbq->wait_iocb_cmpl = NULL;
11100 if (cmdiocbq->iocb_cmpl)
11101 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, NULL);
11103 lpfc_sli_release_iocbq(phba, cmdiocbq);
11107 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
11108 if (cmdiocbq->context2 && rspiocbq)
11109 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
11110 &rspiocbq->iocb, sizeof(IOCB_t));
11112 /* Set the exchange busy flag for task management commands */
11113 if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) &&
11114 !(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) {
11115 lpfc_cmd = container_of(cmdiocbq, struct lpfc_scsi_buf,
11117 lpfc_cmd->exch_busy = rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY;
11120 pdone_q = cmdiocbq->context_un.wait_queue;
11123 spin_unlock_irqrestore(&phba->hbalock, iflags);
11128 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
11129 * @phba: Pointer to HBA context object..
11130 * @piocbq: Pointer to command iocb.
11131 * @flag: Flag to test.
11133 * This routine grabs the hbalock and then test the iocb_flag to
11134 * see if the passed in flag is set.
11136 * 1 if flag is set.
11137 * 0 if flag is not set.
11140 lpfc_chk_iocb_flg(struct lpfc_hba *phba,
11141 struct lpfc_iocbq *piocbq, uint32_t flag)
11143 unsigned long iflags;
11146 spin_lock_irqsave(&phba->hbalock, iflags);
11147 ret = piocbq->iocb_flag & flag;
11148 spin_unlock_irqrestore(&phba->hbalock, iflags);
11154 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
11155 * @phba: Pointer to HBA context object..
11156 * @pring: Pointer to sli ring.
11157 * @piocb: Pointer to command iocb.
11158 * @prspiocbq: Pointer to response iocb.
11159 * @timeout: Timeout in number of seconds.
11161 * This function issues the iocb to firmware and waits for the
11162 * iocb to complete. The iocb_cmpl field of the shall be used
11163 * to handle iocbs which time out. If the field is NULL, the
11164 * function shall free the iocbq structure. If more clean up is
11165 * needed, the caller is expected to provide a completion function
11166 * that will provide the needed clean up. If the iocb command is
11167 * not completed within timeout seconds, the function will either
11168 * free the iocbq structure (if iocb_cmpl == NULL) or execute the
11169 * completion function set in the iocb_cmpl field and then return
11170 * a status of IOCB_TIMEDOUT. The caller should not free the iocb
11171 * resources if this function returns IOCB_TIMEDOUT.
11172 * The function waits for the iocb completion using an
11173 * non-interruptible wait.
11174 * This function will sleep while waiting for iocb completion.
11175 * So, this function should not be called from any context which
11176 * does not allow sleeping. Due to the same reason, this function
11177 * cannot be called with interrupt disabled.
11178 * This function assumes that the iocb completions occur while
11179 * this function sleep. So, this function cannot be called from
11180 * the thread which process iocb completion for this ring.
11181 * This function clears the iocb_flag of the iocb object before
11182 * issuing the iocb and the iocb completion handler sets this
11183 * flag and wakes this thread when the iocb completes.
11184 * The contents of the response iocb will be copied to prspiocbq
11185 * by the completion handler when the command completes.
11186 * This function returns IOCB_SUCCESS when success.
11187 * This function is called with no lock held.
11190 lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
11191 uint32_t ring_number,
11192 struct lpfc_iocbq *piocb,
11193 struct lpfc_iocbq *prspiocbq,
11196 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
11197 long timeleft, timeout_req = 0;
11198 int retval = IOCB_SUCCESS;
11200 struct lpfc_iocbq *iocb;
11202 int txcmplq_cnt = 0;
11203 struct lpfc_sli_ring *pring;
11204 unsigned long iflags;
11205 bool iocb_completed = true;
11207 if (phba->sli_rev >= LPFC_SLI_REV4)
11208 pring = lpfc_sli4_calc_ring(phba, piocb);
11210 pring = &phba->sli.sli3_ring[ring_number];
11212 * If the caller has provided a response iocbq buffer, then context2
11213 * is NULL or its an error.
11216 if (piocb->context2)
11218 piocb->context2 = prspiocbq;
11221 piocb->wait_iocb_cmpl = piocb->iocb_cmpl;
11222 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
11223 piocb->context_un.wait_queue = &done_q;
11224 piocb->iocb_flag &= ~(LPFC_IO_WAKE | LPFC_IO_WAKE_TMO);
11226 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
11227 if (lpfc_readl(phba->HCregaddr, &creg_val))
11229 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
11230 writel(creg_val, phba->HCregaddr);
11231 readl(phba->HCregaddr); /* flush */
11234 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb,
11235 SLI_IOCB_RET_IOCB);
11236 if (retval == IOCB_SUCCESS) {
11237 timeout_req = msecs_to_jiffies(timeout * 1000);
11238 timeleft = wait_event_timeout(done_q,
11239 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
11241 spin_lock_irqsave(&phba->hbalock, iflags);
11242 if (!(piocb->iocb_flag & LPFC_IO_WAKE)) {
11245 * IOCB timed out. Inform the wake iocb wait
11246 * completion function and set local status
11249 iocb_completed = false;
11250 piocb->iocb_flag |= LPFC_IO_WAKE_TMO;
11252 spin_unlock_irqrestore(&phba->hbalock, iflags);
11253 if (iocb_completed) {
11254 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11255 "0331 IOCB wake signaled\n");
11256 /* Note: we are not indicating if the IOCB has a success
11257 * status or not - that's for the caller to check.
11258 * IOCB_SUCCESS means just that the command was sent and
11259 * completed. Not that it completed successfully.
11261 } else if (timeleft == 0) {
11262 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11263 "0338 IOCB wait timeout error - no "
11264 "wake response Data x%x\n", timeout);
11265 retval = IOCB_TIMEDOUT;
11267 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11268 "0330 IOCB wake NOT set, "
11270 timeout, (timeleft / jiffies));
11271 retval = IOCB_TIMEDOUT;
11273 } else if (retval == IOCB_BUSY) {
11274 if (phba->cfg_log_verbose & LOG_SLI) {
11275 list_for_each_entry(iocb, &pring->txq, list) {
11278 list_for_each_entry(iocb, &pring->txcmplq, list) {
11281 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11282 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
11283 phba->iocb_cnt, txq_cnt, txcmplq_cnt);
11287 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11288 "0332 IOCB wait issue failed, Data x%x\n",
11290 retval = IOCB_ERROR;
11293 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
11294 if (lpfc_readl(phba->HCregaddr, &creg_val))
11296 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
11297 writel(creg_val, phba->HCregaddr);
11298 readl(phba->HCregaddr); /* flush */
11302 piocb->context2 = NULL;
11304 piocb->context_un.wait_queue = NULL;
11305 piocb->iocb_cmpl = NULL;
11310 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
11311 * @phba: Pointer to HBA context object.
11312 * @pmboxq: Pointer to driver mailbox object.
11313 * @timeout: Timeout in number of seconds.
11315 * This function issues the mailbox to firmware and waits for the
11316 * mailbox command to complete. If the mailbox command is not
11317 * completed within timeout seconds, it returns MBX_TIMEOUT.
11318 * The function waits for the mailbox completion using an
11319 * interruptible wait. If the thread is woken up due to a
11320 * signal, MBX_TIMEOUT error is returned to the caller. Caller
11321 * should not free the mailbox resources, if this function returns
11323 * This function will sleep while waiting for mailbox completion.
11324 * So, this function should not be called from any context which
11325 * does not allow sleeping. Due to the same reason, this function
11326 * cannot be called with interrupt disabled.
11327 * This function assumes that the mailbox completion occurs while
11328 * this function sleep. So, this function cannot be called from
11329 * the worker thread which processes mailbox completion.
11330 * This function is called in the context of HBA management
11332 * This function returns MBX_SUCCESS when successful.
11333 * This function is called with no lock held.
11336 lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
11339 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
11340 MAILBOX_t *mb = NULL;
11342 unsigned long flag;
11344 /* The caller might set context1 for extended buffer */
11345 if (pmboxq->context1)
11346 mb = (MAILBOX_t *)pmboxq->context1;
11348 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
11349 /* setup wake call as IOCB callback */
11350 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
11351 /* setup context field to pass wait_queue pointer to wake function */
11352 pmboxq->context1 = &done_q;
11354 /* now issue the command */
11355 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
11356 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
11357 wait_event_interruptible_timeout(done_q,
11358 pmboxq->mbox_flag & LPFC_MBX_WAKE,
11359 msecs_to_jiffies(timeout * 1000));
11361 spin_lock_irqsave(&phba->hbalock, flag);
11362 /* restore the possible extended buffer for free resource */
11363 pmboxq->context1 = (uint8_t *)mb;
11365 * if LPFC_MBX_WAKE flag is set the mailbox is completed
11366 * else do not free the resources.
11368 if (pmboxq->mbox_flag & LPFC_MBX_WAKE) {
11369 retval = MBX_SUCCESS;
11371 retval = MBX_TIMEOUT;
11372 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
11374 spin_unlock_irqrestore(&phba->hbalock, flag);
11376 /* restore the possible extended buffer for free resource */
11377 pmboxq->context1 = (uint8_t *)mb;
11384 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
11385 * @phba: Pointer to HBA context.
11387 * This function is called to shutdown the driver's mailbox sub-system.
11388 * It first marks the mailbox sub-system is in a block state to prevent
11389 * the asynchronous mailbox command from issued off the pending mailbox
11390 * command queue. If the mailbox command sub-system shutdown is due to
11391 * HBA error conditions such as EEH or ERATT, this routine shall invoke
11392 * the mailbox sub-system flush routine to forcefully bring down the
11393 * mailbox sub-system. Otherwise, if it is due to normal condition (such
11394 * as with offline or HBA function reset), this routine will wait for the
11395 * outstanding mailbox command to complete before invoking the mailbox
11396 * sub-system flush routine to gracefully bring down mailbox sub-system.
11399 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba, int mbx_action)
11401 struct lpfc_sli *psli = &phba->sli;
11402 unsigned long timeout;
11404 if (mbx_action == LPFC_MBX_NO_WAIT) {
11405 /* delay 100ms for port state */
11407 lpfc_sli_mbox_sys_flush(phba);
11410 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
11412 spin_lock_irq(&phba->hbalock);
11413 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
11415 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
11416 /* Determine how long we might wait for the active mailbox
11417 * command to be gracefully completed by firmware.
11419 if (phba->sli.mbox_active)
11420 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
11421 phba->sli.mbox_active) *
11423 spin_unlock_irq(&phba->hbalock);
11425 while (phba->sli.mbox_active) {
11426 /* Check active mailbox complete status every 2ms */
11428 if (time_after(jiffies, timeout))
11429 /* Timeout, let the mailbox flush routine to
11430 * forcefully release active mailbox command
11435 spin_unlock_irq(&phba->hbalock);
11437 lpfc_sli_mbox_sys_flush(phba);
11441 * lpfc_sli_eratt_read - read sli-3 error attention events
11442 * @phba: Pointer to HBA context.
11444 * This function is called to read the SLI3 device error attention registers
11445 * for possible error attention events. The caller must hold the hostlock
11446 * with spin_lock_irq().
11448 * This function returns 1 when there is Error Attention in the Host Attention
11449 * Register and returns 0 otherwise.
11452 lpfc_sli_eratt_read(struct lpfc_hba *phba)
11456 /* Read chip Host Attention (HA) register */
11457 if (lpfc_readl(phba->HAregaddr, &ha_copy))
11460 if (ha_copy & HA_ERATT) {
11461 /* Read host status register to retrieve error event */
11462 if (lpfc_sli_read_hs(phba))
11465 /* Check if there is a deferred error condition is active */
11466 if ((HS_FFER1 & phba->work_hs) &&
11467 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
11468 HS_FFER6 | HS_FFER7 | HS_FFER8) & phba->work_hs)) {
11469 phba->hba_flag |= DEFER_ERATT;
11470 /* Clear all interrupt enable conditions */
11471 writel(0, phba->HCregaddr);
11472 readl(phba->HCregaddr);
11475 /* Set the driver HA work bitmap */
11476 phba->work_ha |= HA_ERATT;
11477 /* Indicate polling handles this ERATT */
11478 phba->hba_flag |= HBA_ERATT_HANDLED;
11484 /* Set the driver HS work bitmap */
11485 phba->work_hs |= UNPLUG_ERR;
11486 /* Set the driver HA work bitmap */
11487 phba->work_ha |= HA_ERATT;
11488 /* Indicate polling handles this ERATT */
11489 phba->hba_flag |= HBA_ERATT_HANDLED;
11494 * lpfc_sli4_eratt_read - read sli-4 error attention events
11495 * @phba: Pointer to HBA context.
11497 * This function is called to read the SLI4 device error attention registers
11498 * for possible error attention events. The caller must hold the hostlock
11499 * with spin_lock_irq().
11501 * This function returns 1 when there is Error Attention in the Host Attention
11502 * Register and returns 0 otherwise.
11505 lpfc_sli4_eratt_read(struct lpfc_hba *phba)
11507 uint32_t uerr_sta_hi, uerr_sta_lo;
11508 uint32_t if_type, portsmphr;
11509 struct lpfc_register portstat_reg;
11512 * For now, use the SLI4 device internal unrecoverable error
11513 * registers for error attention. This can be changed later.
11515 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
11517 case LPFC_SLI_INTF_IF_TYPE_0:
11518 if (lpfc_readl(phba->sli4_hba.u.if_type0.UERRLOregaddr,
11520 lpfc_readl(phba->sli4_hba.u.if_type0.UERRHIregaddr,
11522 phba->work_hs |= UNPLUG_ERR;
11523 phba->work_ha |= HA_ERATT;
11524 phba->hba_flag |= HBA_ERATT_HANDLED;
11527 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
11528 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
11529 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11530 "1423 HBA Unrecoverable error: "
11531 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
11532 "ue_mask_lo_reg=0x%x, "
11533 "ue_mask_hi_reg=0x%x\n",
11534 uerr_sta_lo, uerr_sta_hi,
11535 phba->sli4_hba.ue_mask_lo,
11536 phba->sli4_hba.ue_mask_hi);
11537 phba->work_status[0] = uerr_sta_lo;
11538 phba->work_status[1] = uerr_sta_hi;
11539 phba->work_ha |= HA_ERATT;
11540 phba->hba_flag |= HBA_ERATT_HANDLED;
11544 case LPFC_SLI_INTF_IF_TYPE_2:
11545 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
11546 &portstat_reg.word0) ||
11547 lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
11549 phba->work_hs |= UNPLUG_ERR;
11550 phba->work_ha |= HA_ERATT;
11551 phba->hba_flag |= HBA_ERATT_HANDLED;
11554 if (bf_get(lpfc_sliport_status_err, &portstat_reg)) {
11555 phba->work_status[0] =
11556 readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
11557 phba->work_status[1] =
11558 readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
11559 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11560 "2885 Port Status Event: "
11561 "port status reg 0x%x, "
11562 "port smphr reg 0x%x, "
11563 "error 1=0x%x, error 2=0x%x\n",
11564 portstat_reg.word0,
11566 phba->work_status[0],
11567 phba->work_status[1]);
11568 phba->work_ha |= HA_ERATT;
11569 phba->hba_flag |= HBA_ERATT_HANDLED;
11573 case LPFC_SLI_INTF_IF_TYPE_1:
11575 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11576 "2886 HBA Error Attention on unsupported "
11577 "if type %d.", if_type);
11585 * lpfc_sli_check_eratt - check error attention events
11586 * @phba: Pointer to HBA context.
11588 * This function is called from timer soft interrupt context to check HBA's
11589 * error attention register bit for error attention events.
11591 * This function returns 1 when there is Error Attention in the Host Attention
11592 * Register and returns 0 otherwise.
11595 lpfc_sli_check_eratt(struct lpfc_hba *phba)
11599 /* If somebody is waiting to handle an eratt, don't process it
11600 * here. The brdkill function will do this.
11602 if (phba->link_flag & LS_IGNORE_ERATT)
11605 /* Check if interrupt handler handles this ERATT */
11606 spin_lock_irq(&phba->hbalock);
11607 if (phba->hba_flag & HBA_ERATT_HANDLED) {
11608 /* Interrupt handler has handled ERATT */
11609 spin_unlock_irq(&phba->hbalock);
11614 * If there is deferred error attention, do not check for error
11617 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
11618 spin_unlock_irq(&phba->hbalock);
11622 /* If PCI channel is offline, don't process it */
11623 if (unlikely(pci_channel_offline(phba->pcidev))) {
11624 spin_unlock_irq(&phba->hbalock);
11628 switch (phba->sli_rev) {
11629 case LPFC_SLI_REV2:
11630 case LPFC_SLI_REV3:
11631 /* Read chip Host Attention (HA) register */
11632 ha_copy = lpfc_sli_eratt_read(phba);
11634 case LPFC_SLI_REV4:
11635 /* Read device Uncoverable Error (UERR) registers */
11636 ha_copy = lpfc_sli4_eratt_read(phba);
11639 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11640 "0299 Invalid SLI revision (%d)\n",
11645 spin_unlock_irq(&phba->hbalock);
11651 * lpfc_intr_state_check - Check device state for interrupt handling
11652 * @phba: Pointer to HBA context.
11654 * This inline routine checks whether a device or its PCI slot is in a state
11655 * that the interrupt should be handled.
11657 * This function returns 0 if the device or the PCI slot is in a state that
11658 * interrupt should be handled, otherwise -EIO.
11661 lpfc_intr_state_check(struct lpfc_hba *phba)
11663 /* If the pci channel is offline, ignore all the interrupts */
11664 if (unlikely(pci_channel_offline(phba->pcidev)))
11667 /* Update device level interrupt statistics */
11668 phba->sli.slistat.sli_intr++;
11670 /* Ignore all interrupts during initialization. */
11671 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
11678 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
11679 * @irq: Interrupt number.
11680 * @dev_id: The device context pointer.
11682 * This function is directly called from the PCI layer as an interrupt
11683 * service routine when device with SLI-3 interface spec is enabled with
11684 * MSI-X multi-message interrupt mode and there are slow-path events in
11685 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
11686 * interrupt mode, this function is called as part of the device-level
11687 * interrupt handler. When the PCI slot is in error recovery or the HBA
11688 * is undergoing initialization, the interrupt handler will not process
11689 * the interrupt. The link attention and ELS ring attention events are
11690 * handled by the worker thread. The interrupt handler signals the worker
11691 * thread and returns for these events. This function is called without
11692 * any lock held. It gets the hbalock to access and update SLI data
11695 * This function returns IRQ_HANDLED when interrupt is handled else it
11696 * returns IRQ_NONE.
11699 lpfc_sli_sp_intr_handler(int irq, void *dev_id)
11701 struct lpfc_hba *phba;
11702 uint32_t ha_copy, hc_copy;
11703 uint32_t work_ha_copy;
11704 unsigned long status;
11705 unsigned long iflag;
11708 MAILBOX_t *mbox, *pmbox;
11709 struct lpfc_vport *vport;
11710 struct lpfc_nodelist *ndlp;
11711 struct lpfc_dmabuf *mp;
11716 * Get the driver's phba structure from the dev_id and
11717 * assume the HBA is not interrupting.
11719 phba = (struct lpfc_hba *)dev_id;
11721 if (unlikely(!phba))
11725 * Stuff needs to be attented to when this function is invoked as an
11726 * individual interrupt handler in MSI-X multi-message interrupt mode
11728 if (phba->intr_type == MSIX) {
11729 /* Check device state for handling interrupt */
11730 if (lpfc_intr_state_check(phba))
11732 /* Need to read HA REG for slow-path events */
11733 spin_lock_irqsave(&phba->hbalock, iflag);
11734 if (lpfc_readl(phba->HAregaddr, &ha_copy))
11736 /* If somebody is waiting to handle an eratt don't process it
11737 * here. The brdkill function will do this.
11739 if (phba->link_flag & LS_IGNORE_ERATT)
11740 ha_copy &= ~HA_ERATT;
11741 /* Check the need for handling ERATT in interrupt handler */
11742 if (ha_copy & HA_ERATT) {
11743 if (phba->hba_flag & HBA_ERATT_HANDLED)
11744 /* ERATT polling has handled ERATT */
11745 ha_copy &= ~HA_ERATT;
11747 /* Indicate interrupt handler handles ERATT */
11748 phba->hba_flag |= HBA_ERATT_HANDLED;
11752 * If there is deferred error attention, do not check for any
11755 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
11756 spin_unlock_irqrestore(&phba->hbalock, iflag);
11760 /* Clear up only attention source related to slow-path */
11761 if (lpfc_readl(phba->HCregaddr, &hc_copy))
11764 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
11765 HC_LAINT_ENA | HC_ERINT_ENA),
11767 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
11769 writel(hc_copy, phba->HCregaddr);
11770 readl(phba->HAregaddr); /* flush */
11771 spin_unlock_irqrestore(&phba->hbalock, iflag);
11773 ha_copy = phba->ha_copy;
11775 work_ha_copy = ha_copy & phba->work_ha_mask;
11777 if (work_ha_copy) {
11778 if (work_ha_copy & HA_LATT) {
11779 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
11781 * Turn off Link Attention interrupts
11782 * until CLEAR_LA done
11784 spin_lock_irqsave(&phba->hbalock, iflag);
11785 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
11786 if (lpfc_readl(phba->HCregaddr, &control))
11788 control &= ~HC_LAINT_ENA;
11789 writel(control, phba->HCregaddr);
11790 readl(phba->HCregaddr); /* flush */
11791 spin_unlock_irqrestore(&phba->hbalock, iflag);
11794 work_ha_copy &= ~HA_LATT;
11797 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
11799 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
11800 * the only slow ring.
11802 status = (work_ha_copy &
11803 (HA_RXMASK << (4*LPFC_ELS_RING)));
11804 status >>= (4*LPFC_ELS_RING);
11805 if (status & HA_RXMASK) {
11806 spin_lock_irqsave(&phba->hbalock, iflag);
11807 if (lpfc_readl(phba->HCregaddr, &control))
11810 lpfc_debugfs_slow_ring_trc(phba,
11811 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
11813 (uint32_t)phba->sli.slistat.sli_intr);
11815 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
11816 lpfc_debugfs_slow_ring_trc(phba,
11817 "ISR Disable ring:"
11818 "pwork:x%x hawork:x%x wait:x%x",
11819 phba->work_ha, work_ha_copy,
11820 (uint32_t)((unsigned long)
11821 &phba->work_waitq));
11824 ~(HC_R0INT_ENA << LPFC_ELS_RING);
11825 writel(control, phba->HCregaddr);
11826 readl(phba->HCregaddr); /* flush */
11829 lpfc_debugfs_slow_ring_trc(phba,
11830 "ISR slow ring: pwork:"
11831 "x%x hawork:x%x wait:x%x",
11832 phba->work_ha, work_ha_copy,
11833 (uint32_t)((unsigned long)
11834 &phba->work_waitq));
11836 spin_unlock_irqrestore(&phba->hbalock, iflag);
11839 spin_lock_irqsave(&phba->hbalock, iflag);
11840 if (work_ha_copy & HA_ERATT) {
11841 if (lpfc_sli_read_hs(phba))
11844 * Check if there is a deferred error condition
11847 if ((HS_FFER1 & phba->work_hs) &&
11848 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
11849 HS_FFER6 | HS_FFER7 | HS_FFER8) &
11851 phba->hba_flag |= DEFER_ERATT;
11852 /* Clear all interrupt enable conditions */
11853 writel(0, phba->HCregaddr);
11854 readl(phba->HCregaddr);
11858 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
11859 pmb = phba->sli.mbox_active;
11860 pmbox = &pmb->u.mb;
11862 vport = pmb->vport;
11864 /* First check out the status word */
11865 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
11866 if (pmbox->mbxOwner != OWN_HOST) {
11867 spin_unlock_irqrestore(&phba->hbalock, iflag);
11869 * Stray Mailbox Interrupt, mbxCommand <cmd>
11870 * mbxStatus <status>
11872 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
11874 "(%d):0304 Stray Mailbox "
11875 "Interrupt mbxCommand x%x "
11877 (vport ? vport->vpi : 0),
11880 /* clear mailbox attention bit */
11881 work_ha_copy &= ~HA_MBATT;
11883 phba->sli.mbox_active = NULL;
11884 spin_unlock_irqrestore(&phba->hbalock, iflag);
11885 phba->last_completion_time = jiffies;
11886 del_timer(&phba->sli.mbox_tmo);
11887 if (pmb->mbox_cmpl) {
11888 lpfc_sli_pcimem_bcopy(mbox, pmbox,
11890 if (pmb->out_ext_byte_len &&
11892 lpfc_sli_pcimem_bcopy(
11895 pmb->out_ext_byte_len);
11897 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
11898 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
11900 lpfc_debugfs_disc_trc(vport,
11901 LPFC_DISC_TRC_MBOX_VPORT,
11902 "MBOX dflt rpi: : "
11903 "status:x%x rpi:x%x",
11904 (uint32_t)pmbox->mbxStatus,
11905 pmbox->un.varWords[0], 0);
11907 if (!pmbox->mbxStatus) {
11908 mp = (struct lpfc_dmabuf *)
11910 ndlp = (struct lpfc_nodelist *)
11913 /* Reg_LOGIN of dflt RPI was
11914 * successful. new lets get
11915 * rid of the RPI using the
11916 * same mbox buffer.
11918 lpfc_unreg_login(phba,
11920 pmbox->un.varWords[0],
11923 lpfc_mbx_cmpl_dflt_rpi;
11924 pmb->context1 = mp;
11925 pmb->context2 = ndlp;
11926 pmb->vport = vport;
11927 rc = lpfc_sli_issue_mbox(phba,
11930 if (rc != MBX_BUSY)
11931 lpfc_printf_log(phba,
11933 LOG_MBOX | LOG_SLI,
11934 "0350 rc should have"
11935 "been MBX_BUSY\n");
11936 if (rc != MBX_NOT_FINISHED)
11937 goto send_current_mbox;
11941 &phba->pport->work_port_lock,
11943 phba->pport->work_port_events &=
11945 spin_unlock_irqrestore(
11946 &phba->pport->work_port_lock,
11948 lpfc_mbox_cmpl_put(phba, pmb);
11951 spin_unlock_irqrestore(&phba->hbalock, iflag);
11953 if ((work_ha_copy & HA_MBATT) &&
11954 (phba->sli.mbox_active == NULL)) {
11956 /* Process next mailbox command if there is one */
11958 rc = lpfc_sli_issue_mbox(phba, NULL,
11960 } while (rc == MBX_NOT_FINISHED);
11961 if (rc != MBX_SUCCESS)
11962 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
11963 LOG_SLI, "0349 rc should be "
11967 spin_lock_irqsave(&phba->hbalock, iflag);
11968 phba->work_ha |= work_ha_copy;
11969 spin_unlock_irqrestore(&phba->hbalock, iflag);
11970 lpfc_worker_wake_up(phba);
11972 return IRQ_HANDLED;
11974 spin_unlock_irqrestore(&phba->hbalock, iflag);
11975 return IRQ_HANDLED;
11977 } /* lpfc_sli_sp_intr_handler */
11980 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
11981 * @irq: Interrupt number.
11982 * @dev_id: The device context pointer.
11984 * This function is directly called from the PCI layer as an interrupt
11985 * service routine when device with SLI-3 interface spec is enabled with
11986 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
11987 * ring event in the HBA. However, when the device is enabled with either
11988 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
11989 * device-level interrupt handler. When the PCI slot is in error recovery
11990 * or the HBA is undergoing initialization, the interrupt handler will not
11991 * process the interrupt. The SCSI FCP fast-path ring event are handled in
11992 * the intrrupt context. This function is called without any lock held.
11993 * It gets the hbalock to access and update SLI data structures.
11995 * This function returns IRQ_HANDLED when interrupt is handled else it
11996 * returns IRQ_NONE.
11999 lpfc_sli_fp_intr_handler(int irq, void *dev_id)
12001 struct lpfc_hba *phba;
12003 unsigned long status;
12004 unsigned long iflag;
12005 struct lpfc_sli_ring *pring;
12007 /* Get the driver's phba structure from the dev_id and
12008 * assume the HBA is not interrupting.
12010 phba = (struct lpfc_hba *) dev_id;
12012 if (unlikely(!phba))
12016 * Stuff needs to be attented to when this function is invoked as an
12017 * individual interrupt handler in MSI-X multi-message interrupt mode
12019 if (phba->intr_type == MSIX) {
12020 /* Check device state for handling interrupt */
12021 if (lpfc_intr_state_check(phba))
12023 /* Need to read HA REG for FCP ring and other ring events */
12024 if (lpfc_readl(phba->HAregaddr, &ha_copy))
12025 return IRQ_HANDLED;
12026 /* Clear up only attention source related to fast-path */
12027 spin_lock_irqsave(&phba->hbalock, iflag);
12029 * If there is deferred error attention, do not check for
12032 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
12033 spin_unlock_irqrestore(&phba->hbalock, iflag);
12036 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
12038 readl(phba->HAregaddr); /* flush */
12039 spin_unlock_irqrestore(&phba->hbalock, iflag);
12041 ha_copy = phba->ha_copy;
12044 * Process all events on FCP ring. Take the optimized path for FCP IO.
12046 ha_copy &= ~(phba->work_ha_mask);
12048 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
12049 status >>= (4*LPFC_FCP_RING);
12050 pring = &phba->sli.sli3_ring[LPFC_FCP_RING];
12051 if (status & HA_RXMASK)
12052 lpfc_sli_handle_fast_ring_event(phba, pring, status);
12054 if (phba->cfg_multi_ring_support == 2) {
12056 * Process all events on extra ring. Take the optimized path
12057 * for extra ring IO.
12059 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
12060 status >>= (4*LPFC_EXTRA_RING);
12061 if (status & HA_RXMASK) {
12062 lpfc_sli_handle_fast_ring_event(phba,
12063 &phba->sli.sli3_ring[LPFC_EXTRA_RING],
12067 return IRQ_HANDLED;
12068 } /* lpfc_sli_fp_intr_handler */
12071 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
12072 * @irq: Interrupt number.
12073 * @dev_id: The device context pointer.
12075 * This function is the HBA device-level interrupt handler to device with
12076 * SLI-3 interface spec, called from the PCI layer when either MSI or
12077 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
12078 * requires driver attention. This function invokes the slow-path interrupt
12079 * attention handling function and fast-path interrupt attention handling
12080 * function in turn to process the relevant HBA attention events. This
12081 * function is called without any lock held. It gets the hbalock to access
12082 * and update SLI data structures.
12084 * This function returns IRQ_HANDLED when interrupt is handled, else it
12085 * returns IRQ_NONE.
12088 lpfc_sli_intr_handler(int irq, void *dev_id)
12090 struct lpfc_hba *phba;
12091 irqreturn_t sp_irq_rc, fp_irq_rc;
12092 unsigned long status1, status2;
12096 * Get the driver's phba structure from the dev_id and
12097 * assume the HBA is not interrupting.
12099 phba = (struct lpfc_hba *) dev_id;
12101 if (unlikely(!phba))
12104 /* Check device state for handling interrupt */
12105 if (lpfc_intr_state_check(phba))
12108 spin_lock(&phba->hbalock);
12109 if (lpfc_readl(phba->HAregaddr, &phba->ha_copy)) {
12110 spin_unlock(&phba->hbalock);
12111 return IRQ_HANDLED;
12114 if (unlikely(!phba->ha_copy)) {
12115 spin_unlock(&phba->hbalock);
12117 } else if (phba->ha_copy & HA_ERATT) {
12118 if (phba->hba_flag & HBA_ERATT_HANDLED)
12119 /* ERATT polling has handled ERATT */
12120 phba->ha_copy &= ~HA_ERATT;
12122 /* Indicate interrupt handler handles ERATT */
12123 phba->hba_flag |= HBA_ERATT_HANDLED;
12127 * If there is deferred error attention, do not check for any interrupt.
12129 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
12130 spin_unlock(&phba->hbalock);
12134 /* Clear attention sources except link and error attentions */
12135 if (lpfc_readl(phba->HCregaddr, &hc_copy)) {
12136 spin_unlock(&phba->hbalock);
12137 return IRQ_HANDLED;
12139 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
12140 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
12142 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
12143 writel(hc_copy, phba->HCregaddr);
12144 readl(phba->HAregaddr); /* flush */
12145 spin_unlock(&phba->hbalock);
12148 * Invokes slow-path host attention interrupt handling as appropriate.
12151 /* status of events with mailbox and link attention */
12152 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
12154 /* status of events with ELS ring */
12155 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
12156 status2 >>= (4*LPFC_ELS_RING);
12158 if (status1 || (status2 & HA_RXMASK))
12159 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
12161 sp_irq_rc = IRQ_NONE;
12164 * Invoke fast-path host attention interrupt handling as appropriate.
12167 /* status of events with FCP ring */
12168 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
12169 status1 >>= (4*LPFC_FCP_RING);
12171 /* status of events with extra ring */
12172 if (phba->cfg_multi_ring_support == 2) {
12173 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
12174 status2 >>= (4*LPFC_EXTRA_RING);
12178 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
12179 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
12181 fp_irq_rc = IRQ_NONE;
12183 /* Return device-level interrupt handling status */
12184 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
12185 } /* lpfc_sli_intr_handler */
12188 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
12189 * @phba: pointer to lpfc hba data structure.
12191 * This routine is invoked by the worker thread to process all the pending
12192 * SLI4 FCP abort XRI events.
12194 void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba)
12196 struct lpfc_cq_event *cq_event;
12198 /* First, declare the fcp xri abort event has been handled */
12199 spin_lock_irq(&phba->hbalock);
12200 phba->hba_flag &= ~FCP_XRI_ABORT_EVENT;
12201 spin_unlock_irq(&phba->hbalock);
12202 /* Now, handle all the fcp xri abort events */
12203 while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) {
12204 /* Get the first event from the head of the event queue */
12205 spin_lock_irq(&phba->hbalock);
12206 list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
12207 cq_event, struct lpfc_cq_event, list);
12208 spin_unlock_irq(&phba->hbalock);
12209 /* Notify aborted XRI for FCP work queue */
12210 lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
12211 /* Free the event processed back to the free pool */
12212 lpfc_sli4_cq_event_release(phba, cq_event);
12217 * lpfc_sli4_nvme_xri_abort_event_proc - Process nvme xri abort event
12218 * @phba: pointer to lpfc hba data structure.
12220 * This routine is invoked by the worker thread to process all the pending
12221 * SLI4 NVME abort XRI events.
12223 void lpfc_sli4_nvme_xri_abort_event_proc(struct lpfc_hba *phba)
12225 struct lpfc_cq_event *cq_event;
12227 /* First, declare the fcp xri abort event has been handled */
12228 spin_lock_irq(&phba->hbalock);
12229 phba->hba_flag &= ~NVME_XRI_ABORT_EVENT;
12230 spin_unlock_irq(&phba->hbalock);
12231 /* Now, handle all the fcp xri abort events */
12232 while (!list_empty(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue)) {
12233 /* Get the first event from the head of the event queue */
12234 spin_lock_irq(&phba->hbalock);
12235 list_remove_head(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue,
12236 cq_event, struct lpfc_cq_event, list);
12237 spin_unlock_irq(&phba->hbalock);
12238 /* Notify aborted XRI for NVME work queue */
12239 if (phba->nvmet_support) {
12240 lpfc_sli4_nvmet_xri_aborted(phba,
12241 &cq_event->cqe.wcqe_axri);
12243 lpfc_sli4_nvme_xri_aborted(phba,
12244 &cq_event->cqe.wcqe_axri);
12246 /* Free the event processed back to the free pool */
12247 lpfc_sli4_cq_event_release(phba, cq_event);
12252 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
12253 * @phba: pointer to lpfc hba data structure.
12255 * This routine is invoked by the worker thread to process all the pending
12256 * SLI4 els abort xri events.
12258 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
12260 struct lpfc_cq_event *cq_event;
12262 /* First, declare the els xri abort event has been handled */
12263 spin_lock_irq(&phba->hbalock);
12264 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
12265 spin_unlock_irq(&phba->hbalock);
12266 /* Now, handle all the els xri abort events */
12267 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
12268 /* Get the first event from the head of the event queue */
12269 spin_lock_irq(&phba->hbalock);
12270 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
12271 cq_event, struct lpfc_cq_event, list);
12272 spin_unlock_irq(&phba->hbalock);
12273 /* Notify aborted XRI for ELS work queue */
12274 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
12275 /* Free the event processed back to the free pool */
12276 lpfc_sli4_cq_event_release(phba, cq_event);
12281 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
12282 * @phba: pointer to lpfc hba data structure
12283 * @pIocbIn: pointer to the rspiocbq
12284 * @pIocbOut: pointer to the cmdiocbq
12285 * @wcqe: pointer to the complete wcqe
12287 * This routine transfers the fields of a command iocbq to a response iocbq
12288 * by copying all the IOCB fields from command iocbq and transferring the
12289 * completion status information from the complete wcqe.
12292 lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
12293 struct lpfc_iocbq *pIocbIn,
12294 struct lpfc_iocbq *pIocbOut,
12295 struct lpfc_wcqe_complete *wcqe)
12298 unsigned long iflags;
12299 uint32_t status, max_response;
12300 struct lpfc_dmabuf *dmabuf;
12301 struct ulp_bde64 *bpl, bde;
12302 size_t offset = offsetof(struct lpfc_iocbq, iocb);
12304 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
12305 sizeof(struct lpfc_iocbq) - offset);
12306 /* Map WCQE parameters into irspiocb parameters */
12307 status = bf_get(lpfc_wcqe_c_status, wcqe);
12308 pIocbIn->iocb.ulpStatus = (status & LPFC_IOCB_STATUS_MASK);
12309 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
12310 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
12311 pIocbIn->iocb.un.fcpi.fcpi_parm =
12312 pIocbOut->iocb.un.fcpi.fcpi_parm -
12313 wcqe->total_data_placed;
12315 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
12317 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
12318 switch (pIocbOut->iocb.ulpCommand) {
12319 case CMD_ELS_REQUEST64_CR:
12320 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
12321 bpl = (struct ulp_bde64 *)dmabuf->virt;
12322 bde.tus.w = le32_to_cpu(bpl[1].tus.w);
12323 max_response = bde.tus.f.bdeSize;
12325 case CMD_GEN_REQUEST64_CR:
12327 if (!pIocbOut->context3)
12329 numBdes = pIocbOut->iocb.un.genreq64.bdl.bdeSize/
12330 sizeof(struct ulp_bde64);
12331 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
12332 bpl = (struct ulp_bde64 *)dmabuf->virt;
12333 for (i = 0; i < numBdes; i++) {
12334 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
12335 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
12336 max_response += bde.tus.f.bdeSize;
12340 max_response = wcqe->total_data_placed;
12343 if (max_response < wcqe->total_data_placed)
12344 pIocbIn->iocb.un.genreq64.bdl.bdeSize = max_response;
12346 pIocbIn->iocb.un.genreq64.bdl.bdeSize =
12347 wcqe->total_data_placed;
12350 /* Convert BG errors for completion status */
12351 if (status == CQE_STATUS_DI_ERROR) {
12352 pIocbIn->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
12354 if (bf_get(lpfc_wcqe_c_bg_edir, wcqe))
12355 pIocbIn->iocb.un.ulpWord[4] = IOERR_RX_DMA_FAILED;
12357 pIocbIn->iocb.un.ulpWord[4] = IOERR_TX_DMA_FAILED;
12359 pIocbIn->iocb.unsli3.sli3_bg.bgstat = 0;
12360 if (bf_get(lpfc_wcqe_c_bg_ge, wcqe)) /* Guard Check failed */
12361 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12362 BGS_GUARD_ERR_MASK;
12363 if (bf_get(lpfc_wcqe_c_bg_ae, wcqe)) /* App Tag Check failed */
12364 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12365 BGS_APPTAG_ERR_MASK;
12366 if (bf_get(lpfc_wcqe_c_bg_re, wcqe)) /* Ref Tag Check failed */
12367 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12368 BGS_REFTAG_ERR_MASK;
12370 /* Check to see if there was any good data before the error */
12371 if (bf_get(lpfc_wcqe_c_bg_tdpv, wcqe)) {
12372 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12373 BGS_HI_WATER_MARK_PRESENT_MASK;
12374 pIocbIn->iocb.unsli3.sli3_bg.bghm =
12375 wcqe->total_data_placed;
12379 * Set ALL the error bits to indicate we don't know what
12380 * type of error it is.
12382 if (!pIocbIn->iocb.unsli3.sli3_bg.bgstat)
12383 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12384 (BGS_REFTAG_ERR_MASK | BGS_APPTAG_ERR_MASK |
12385 BGS_GUARD_ERR_MASK);
12388 /* Pick up HBA exchange busy condition */
12389 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
12390 spin_lock_irqsave(&phba->hbalock, iflags);
12391 pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY;
12392 spin_unlock_irqrestore(&phba->hbalock, iflags);
12397 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
12398 * @phba: Pointer to HBA context object.
12399 * @wcqe: Pointer to work-queue completion queue entry.
12401 * This routine handles an ELS work-queue completion event and construct
12402 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
12403 * discovery engine to handle.
12405 * Return: Pointer to the receive IOCBQ, NULL otherwise.
12407 static struct lpfc_iocbq *
12408 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
12409 struct lpfc_iocbq *irspiocbq)
12411 struct lpfc_sli_ring *pring;
12412 struct lpfc_iocbq *cmdiocbq;
12413 struct lpfc_wcqe_complete *wcqe;
12414 unsigned long iflags;
12416 pring = lpfc_phba_elsring(phba);
12418 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
12419 spin_lock_irqsave(&pring->ring_lock, iflags);
12420 pring->stats.iocb_event++;
12421 /* Look up the ELS command IOCB and create pseudo response IOCB */
12422 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
12423 bf_get(lpfc_wcqe_c_request_tag, wcqe));
12424 /* Put the iocb back on the txcmplq */
12425 lpfc_sli_ringtxcmpl_put(phba, pring, cmdiocbq);
12426 spin_unlock_irqrestore(&pring->ring_lock, iflags);
12428 if (unlikely(!cmdiocbq)) {
12429 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12430 "0386 ELS complete with no corresponding "
12431 "cmdiocb: iotag (%d)\n",
12432 bf_get(lpfc_wcqe_c_request_tag, wcqe));
12433 lpfc_sli_release_iocbq(phba, irspiocbq);
12437 /* Fake the irspiocbq and copy necessary response information */
12438 lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe);
12444 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
12445 * @phba: Pointer to HBA context object.
12446 * @cqe: Pointer to mailbox completion queue entry.
12448 * This routine process a mailbox completion queue entry with asynchrous
12451 * Return: true if work posted to worker thread, otherwise false.
12454 lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
12456 struct lpfc_cq_event *cq_event;
12457 unsigned long iflags;
12459 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
12460 "0392 Async Event: word0:x%x, word1:x%x, "
12461 "word2:x%x, word3:x%x\n", mcqe->word0,
12462 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
12464 /* Allocate a new internal CQ_EVENT entry */
12465 cq_event = lpfc_sli4_cq_event_alloc(phba);
12467 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12468 "0394 Failed to allocate CQ_EVENT entry\n");
12472 /* Move the CQE into an asynchronous event entry */
12473 memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe));
12474 spin_lock_irqsave(&phba->hbalock, iflags);
12475 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
12476 /* Set the async event flag */
12477 phba->hba_flag |= ASYNC_EVENT;
12478 spin_unlock_irqrestore(&phba->hbalock, iflags);
12484 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
12485 * @phba: Pointer to HBA context object.
12486 * @cqe: Pointer to mailbox completion queue entry.
12488 * This routine process a mailbox completion queue entry with mailbox
12489 * completion event.
12491 * Return: true if work posted to worker thread, otherwise false.
12494 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
12496 uint32_t mcqe_status;
12497 MAILBOX_t *mbox, *pmbox;
12498 struct lpfc_mqe *mqe;
12499 struct lpfc_vport *vport;
12500 struct lpfc_nodelist *ndlp;
12501 struct lpfc_dmabuf *mp;
12502 unsigned long iflags;
12504 bool workposted = false;
12507 /* If not a mailbox complete MCQE, out by checking mailbox consume */
12508 if (!bf_get(lpfc_trailer_completed, mcqe))
12509 goto out_no_mqe_complete;
12511 /* Get the reference to the active mbox command */
12512 spin_lock_irqsave(&phba->hbalock, iflags);
12513 pmb = phba->sli.mbox_active;
12514 if (unlikely(!pmb)) {
12515 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
12516 "1832 No pending MBOX command to handle\n");
12517 spin_unlock_irqrestore(&phba->hbalock, iflags);
12518 goto out_no_mqe_complete;
12520 spin_unlock_irqrestore(&phba->hbalock, iflags);
12522 pmbox = (MAILBOX_t *)&pmb->u.mqe;
12524 vport = pmb->vport;
12526 /* Reset heartbeat timer */
12527 phba->last_completion_time = jiffies;
12528 del_timer(&phba->sli.mbox_tmo);
12530 /* Move mbox data to caller's mailbox region, do endian swapping */
12531 if (pmb->mbox_cmpl && mbox)
12532 lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
12535 * For mcqe errors, conditionally move a modified error code to
12536 * the mbox so that the error will not be missed.
12538 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
12539 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
12540 if (bf_get(lpfc_mqe_status, mqe) == MBX_SUCCESS)
12541 bf_set(lpfc_mqe_status, mqe,
12542 (LPFC_MBX_ERROR_RANGE | mcqe_status));
12544 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
12545 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
12546 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
12547 "MBOX dflt rpi: status:x%x rpi:x%x",
12549 pmbox->un.varWords[0], 0);
12550 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
12551 mp = (struct lpfc_dmabuf *)(pmb->context1);
12552 ndlp = (struct lpfc_nodelist *)pmb->context2;
12553 /* Reg_LOGIN of dflt RPI was successful. Now lets get
12554 * RID of the PPI using the same mbox buffer.
12556 lpfc_unreg_login(phba, vport->vpi,
12557 pmbox->un.varWords[0], pmb);
12558 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
12559 pmb->context1 = mp;
12560 pmb->context2 = ndlp;
12561 pmb->vport = vport;
12562 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
12563 if (rc != MBX_BUSY)
12564 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
12565 LOG_SLI, "0385 rc should "
12566 "have been MBX_BUSY\n");
12567 if (rc != MBX_NOT_FINISHED)
12568 goto send_current_mbox;
12571 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
12572 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
12573 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
12575 /* There is mailbox completion work to do */
12576 spin_lock_irqsave(&phba->hbalock, iflags);
12577 __lpfc_mbox_cmpl_put(phba, pmb);
12578 phba->work_ha |= HA_MBATT;
12579 spin_unlock_irqrestore(&phba->hbalock, iflags);
12583 spin_lock_irqsave(&phba->hbalock, iflags);
12584 /* Release the mailbox command posting token */
12585 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
12586 /* Setting active mailbox pointer need to be in sync to flag clear */
12587 phba->sli.mbox_active = NULL;
12588 spin_unlock_irqrestore(&phba->hbalock, iflags);
12589 /* Wake up worker thread to post the next pending mailbox command */
12590 lpfc_worker_wake_up(phba);
12591 out_no_mqe_complete:
12592 if (bf_get(lpfc_trailer_consumed, mcqe))
12593 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
12598 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
12599 * @phba: Pointer to HBA context object.
12600 * @cqe: Pointer to mailbox completion queue entry.
12602 * This routine process a mailbox completion queue entry, it invokes the
12603 * proper mailbox complete handling or asynchrous event handling routine
12604 * according to the MCQE's async bit.
12606 * Return: true if work posted to worker thread, otherwise false.
12609 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
12611 struct lpfc_mcqe mcqe;
12614 /* Copy the mailbox MCQE and convert endian order as needed */
12615 lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
12617 /* Invoke the proper event handling routine */
12618 if (!bf_get(lpfc_trailer_async, &mcqe))
12619 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
12621 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
12626 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
12627 * @phba: Pointer to HBA context object.
12628 * @cq: Pointer to associated CQ
12629 * @wcqe: Pointer to work-queue completion queue entry.
12631 * This routine handles an ELS work-queue completion event.
12633 * Return: true if work posted to worker thread, otherwise false.
12636 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
12637 struct lpfc_wcqe_complete *wcqe)
12639 struct lpfc_iocbq *irspiocbq;
12640 unsigned long iflags;
12641 struct lpfc_sli_ring *pring = cq->pring;
12643 int txcmplq_cnt = 0;
12644 int fcp_txcmplq_cnt = 0;
12646 /* Get an irspiocbq for later ELS response processing use */
12647 irspiocbq = lpfc_sli_get_iocbq(phba);
12649 if (!list_empty(&pring->txq))
12651 if (!list_empty(&pring->txcmplq))
12653 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12654 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
12655 "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n",
12656 txq_cnt, phba->iocb_cnt,
12662 /* Save off the slow-path queue event for work thread to process */
12663 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
12664 spin_lock_irqsave(&phba->hbalock, iflags);
12665 list_add_tail(&irspiocbq->cq_event.list,
12666 &phba->sli4_hba.sp_queue_event);
12667 phba->hba_flag |= HBA_SP_QUEUE_EVT;
12668 spin_unlock_irqrestore(&phba->hbalock, iflags);
12674 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
12675 * @phba: Pointer to HBA context object.
12676 * @wcqe: Pointer to work-queue completion queue entry.
12678 * This routine handles slow-path WQ entry comsumed event by invoking the
12679 * proper WQ release routine to the slow-path WQ.
12682 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
12683 struct lpfc_wcqe_release *wcqe)
12685 /* sanity check on queue memory */
12686 if (unlikely(!phba->sli4_hba.els_wq))
12688 /* Check for the slow-path ELS work queue */
12689 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
12690 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
12691 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
12693 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12694 "2579 Slow-path wqe consume event carries "
12695 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
12696 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
12697 phba->sli4_hba.els_wq->queue_id);
12701 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
12702 * @phba: Pointer to HBA context object.
12703 * @cq: Pointer to a WQ completion queue.
12704 * @wcqe: Pointer to work-queue completion queue entry.
12706 * This routine handles an XRI abort event.
12708 * Return: true if work posted to worker thread, otherwise false.
12711 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
12712 struct lpfc_queue *cq,
12713 struct sli4_wcqe_xri_aborted *wcqe)
12715 bool workposted = false;
12716 struct lpfc_cq_event *cq_event;
12717 unsigned long iflags;
12719 /* Allocate a new internal CQ_EVENT entry */
12720 cq_event = lpfc_sli4_cq_event_alloc(phba);
12722 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12723 "0602 Failed to allocate CQ_EVENT entry\n");
12727 /* Move the CQE into the proper xri abort event list */
12728 memcpy(&cq_event->cqe, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
12729 switch (cq->subtype) {
12731 spin_lock_irqsave(&phba->hbalock, iflags);
12732 list_add_tail(&cq_event->list,
12733 &phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
12734 /* Set the fcp xri abort event flag */
12735 phba->hba_flag |= FCP_XRI_ABORT_EVENT;
12736 spin_unlock_irqrestore(&phba->hbalock, iflags);
12740 spin_lock_irqsave(&phba->hbalock, iflags);
12741 list_add_tail(&cq_event->list,
12742 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
12743 /* Set the els xri abort event flag */
12744 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
12745 spin_unlock_irqrestore(&phba->hbalock, iflags);
12749 spin_lock_irqsave(&phba->hbalock, iflags);
12750 list_add_tail(&cq_event->list,
12751 &phba->sli4_hba.sp_nvme_xri_aborted_work_queue);
12752 /* Set the nvme xri abort event flag */
12753 phba->hba_flag |= NVME_XRI_ABORT_EVENT;
12754 spin_unlock_irqrestore(&phba->hbalock, iflags);
12758 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12759 "0603 Invalid CQ subtype %d: "
12760 "%08x %08x %08x %08x\n",
12761 cq->subtype, wcqe->word0, wcqe->parameter,
12762 wcqe->word2, wcqe->word3);
12763 lpfc_sli4_cq_event_release(phba, cq_event);
12764 workposted = false;
12771 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
12772 * @phba: Pointer to HBA context object.
12773 * @rcqe: Pointer to receive-queue completion queue entry.
12775 * This routine process a receive-queue completion queue entry.
12777 * Return: true if work posted to worker thread, otherwise false.
12780 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
12782 bool workposted = false;
12783 struct fc_frame_header *fc_hdr;
12784 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
12785 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
12786 struct hbq_dmabuf *dma_buf;
12787 uint32_t status, rq_id;
12788 unsigned long iflags;
12790 /* sanity check on queue memory */
12791 if (unlikely(!hrq) || unlikely(!drq))
12794 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
12795 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
12797 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
12798 if (rq_id != hrq->queue_id)
12801 status = bf_get(lpfc_rcqe_status, rcqe);
12803 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
12804 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12805 "2537 Receive Frame Truncated!!\n");
12806 hrq->RQ_buf_trunc++;
12807 case FC_STATUS_RQ_SUCCESS:
12808 lpfc_sli4_rq_release(hrq, drq);
12809 spin_lock_irqsave(&phba->hbalock, iflags);
12810 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
12812 hrq->RQ_no_buf_found++;
12813 spin_unlock_irqrestore(&phba->hbalock, iflags);
12817 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
12819 /* If a NVME LS event (type 0x28), treat it as Fast path */
12820 fc_hdr = (struct fc_frame_header *)dma_buf->hbuf.virt;
12822 /* save off the frame for the word thread to process */
12823 list_add_tail(&dma_buf->cq_event.list,
12824 &phba->sli4_hba.sp_queue_event);
12825 /* Frame received */
12826 phba->hba_flag |= HBA_SP_QUEUE_EVT;
12827 spin_unlock_irqrestore(&phba->hbalock, iflags);
12830 case FC_STATUS_INSUFF_BUF_NEED_BUF:
12831 case FC_STATUS_INSUFF_BUF_FRM_DISC:
12832 hrq->RQ_no_posted_buf++;
12833 /* Post more buffers if possible */
12834 spin_lock_irqsave(&phba->hbalock, iflags);
12835 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
12836 spin_unlock_irqrestore(&phba->hbalock, iflags);
12845 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
12846 * @phba: Pointer to HBA context object.
12847 * @cq: Pointer to the completion queue.
12848 * @wcqe: Pointer to a completion queue entry.
12850 * This routine process a slow-path work-queue or receive queue completion queue
12853 * Return: true if work posted to worker thread, otherwise false.
12856 lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
12857 struct lpfc_cqe *cqe)
12859 struct lpfc_cqe cqevt;
12860 bool workposted = false;
12862 /* Copy the work queue CQE and convert endian order if needed */
12863 lpfc_sli_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
12865 /* Check and process for different type of WCQE and dispatch */
12866 switch (bf_get(lpfc_cqe_code, &cqevt)) {
12867 case CQE_CODE_COMPL_WQE:
12868 /* Process the WQ/RQ complete event */
12869 phba->last_completion_time = jiffies;
12870 workposted = lpfc_sli4_sp_handle_els_wcqe(phba, cq,
12871 (struct lpfc_wcqe_complete *)&cqevt);
12873 case CQE_CODE_RELEASE_WQE:
12874 /* Process the WQ release event */
12875 lpfc_sli4_sp_handle_rel_wcqe(phba,
12876 (struct lpfc_wcqe_release *)&cqevt);
12878 case CQE_CODE_XRI_ABORTED:
12879 /* Process the WQ XRI abort event */
12880 phba->last_completion_time = jiffies;
12881 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
12882 (struct sli4_wcqe_xri_aborted *)&cqevt);
12884 case CQE_CODE_RECEIVE:
12885 case CQE_CODE_RECEIVE_V1:
12886 /* Process the RQ event */
12887 phba->last_completion_time = jiffies;
12888 workposted = lpfc_sli4_sp_handle_rcqe(phba,
12889 (struct lpfc_rcqe *)&cqevt);
12892 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12893 "0388 Not a valid WCQE code: x%x\n",
12894 bf_get(lpfc_cqe_code, &cqevt));
12901 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
12902 * @phba: Pointer to HBA context object.
12903 * @eqe: Pointer to fast-path event queue entry.
12905 * This routine process a event queue entry from the slow-path event queue.
12906 * It will check the MajorCode and MinorCode to determine this is for a
12907 * completion event on a completion queue, if not, an error shall be logged
12908 * and just return. Otherwise, it will get to the corresponding completion
12909 * queue and process all the entries on that completion queue, rearm the
12910 * completion queue, and then return.
12914 lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
12915 struct lpfc_queue *speq)
12917 struct lpfc_queue *cq = NULL, *childq;
12918 struct lpfc_cqe *cqe;
12919 bool workposted = false;
12923 /* Get the reference to the corresponding CQ */
12924 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
12926 list_for_each_entry(childq, &speq->child_list, list) {
12927 if (childq->queue_id == cqid) {
12932 if (unlikely(!cq)) {
12933 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
12934 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12935 "0365 Slow-path CQ identifier "
12936 "(%d) does not exist\n", cqid);
12940 /* Save EQ associated with this CQ */
12941 cq->assoc_qp = speq;
12943 /* Process all the entries to the CQ */
12944 switch (cq->type) {
12946 while ((cqe = lpfc_sli4_cq_get(cq))) {
12947 workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe);
12948 if (!(++ecount % cq->entry_repost))
12949 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
12954 while ((cqe = lpfc_sli4_cq_get(cq))) {
12955 if ((cq->subtype == LPFC_FCP) ||
12956 (cq->subtype == LPFC_NVME))
12957 workposted |= lpfc_sli4_fp_handle_cqe(phba, cq,
12960 workposted |= lpfc_sli4_sp_handle_cqe(phba, cq,
12962 if (!(++ecount % cq->entry_repost))
12963 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
12966 /* Track the max number of CQEs processed in 1 EQ */
12967 if (ecount > cq->CQ_max_cqe)
12968 cq->CQ_max_cqe = ecount;
12971 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12972 "0370 Invalid completion queue type (%d)\n",
12977 /* Catch the no cq entry condition, log an error */
12978 if (unlikely(ecount == 0))
12979 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12980 "0371 No entry from the CQ: identifier "
12981 "(x%x), type (%d)\n", cq->queue_id, cq->type);
12983 /* In any case, flash and re-arm the RCQ */
12984 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
12986 /* wake up worker thread if there are works to be done */
12988 lpfc_worker_wake_up(phba);
12992 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
12993 * @phba: Pointer to HBA context object.
12994 * @cq: Pointer to associated CQ
12995 * @wcqe: Pointer to work-queue completion queue entry.
12997 * This routine process a fast-path work queue completion entry from fast-path
12998 * event queue for FCP command response completion.
13001 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13002 struct lpfc_wcqe_complete *wcqe)
13004 struct lpfc_sli_ring *pring = cq->pring;
13005 struct lpfc_iocbq *cmdiocbq;
13006 struct lpfc_iocbq irspiocbq;
13007 unsigned long iflags;
13009 /* Check for response status */
13010 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
13011 /* If resource errors reported from HBA, reduce queue
13012 * depth of the SCSI device.
13014 if (((bf_get(lpfc_wcqe_c_status, wcqe) ==
13015 IOSTAT_LOCAL_REJECT)) &&
13016 ((wcqe->parameter & IOERR_PARAM_MASK) ==
13017 IOERR_NO_RESOURCES))
13018 phba->lpfc_rampdown_queue_depth(phba);
13020 /* Log the error status */
13021 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13022 "0373 FCP complete error: status=x%x, "
13023 "hw_status=x%x, total_data_specified=%d, "
13024 "parameter=x%x, word3=x%x\n",
13025 bf_get(lpfc_wcqe_c_status, wcqe),
13026 bf_get(lpfc_wcqe_c_hw_status, wcqe),
13027 wcqe->total_data_placed, wcqe->parameter,
13031 /* Look up the FCP command IOCB and create pseudo response IOCB */
13032 spin_lock_irqsave(&pring->ring_lock, iflags);
13033 pring->stats.iocb_event++;
13034 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
13035 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13036 spin_unlock_irqrestore(&pring->ring_lock, iflags);
13037 if (unlikely(!cmdiocbq)) {
13038 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13039 "0374 FCP complete with no corresponding "
13040 "cmdiocb: iotag (%d)\n",
13041 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13046 cmdiocbq->isr_timestamp =
13047 cq->assoc_qp->isr_timestamp;
13049 if (cmdiocbq->iocb_cmpl == NULL) {
13050 if (cmdiocbq->wqe_cmpl) {
13051 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
13052 spin_lock_irqsave(&phba->hbalock, iflags);
13053 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
13054 spin_unlock_irqrestore(&phba->hbalock, iflags);
13057 /* Pass the cmd_iocb and the wcqe to the upper layer */
13058 (cmdiocbq->wqe_cmpl)(phba, cmdiocbq, wcqe);
13061 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13062 "0375 FCP cmdiocb not callback function "
13064 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13068 /* Fake the irspiocb and copy necessary response information */
13069 lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
13071 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
13072 spin_lock_irqsave(&phba->hbalock, iflags);
13073 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
13074 spin_unlock_irqrestore(&phba->hbalock, iflags);
13077 /* Pass the cmd_iocb and the rsp state to the upper layer */
13078 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
13082 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
13083 * @phba: Pointer to HBA context object.
13084 * @cq: Pointer to completion queue.
13085 * @wcqe: Pointer to work-queue completion queue entry.
13087 * This routine handles an fast-path WQ entry comsumed event by invoking the
13088 * proper WQ release routine to the slow-path WQ.
13091 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13092 struct lpfc_wcqe_release *wcqe)
13094 struct lpfc_queue *childwq;
13095 bool wqid_matched = false;
13098 /* Check for fast-path FCP work queue release */
13099 hba_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
13100 list_for_each_entry(childwq, &cq->child_list, list) {
13101 if (childwq->queue_id == hba_wqid) {
13102 lpfc_sli4_wq_release(childwq,
13103 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
13104 wqid_matched = true;
13108 /* Report warning log message if no match found */
13109 if (wqid_matched != true)
13110 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13111 "2580 Fast-path wqe consume event carries "
13112 "miss-matched qid: wcqe-qid=x%x\n", hba_wqid);
13116 * lpfc_sli4_nvmet_handle_rcqe - Process a receive-queue completion queue entry
13117 * @phba: Pointer to HBA context object.
13118 * @rcqe: Pointer to receive-queue completion queue entry.
13120 * This routine process a receive-queue completion queue entry.
13122 * Return: true if work posted to worker thread, otherwise false.
13125 lpfc_sli4_nvmet_handle_rcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13126 struct lpfc_rcqe *rcqe)
13128 bool workposted = false;
13129 struct lpfc_queue *hrq;
13130 struct lpfc_queue *drq;
13131 struct rqb_dmabuf *dma_buf;
13132 struct fc_frame_header *fc_hdr;
13133 uint32_t status, rq_id;
13134 unsigned long iflags;
13135 uint32_t fctl, idx;
13137 if ((phba->nvmet_support == 0) ||
13138 (phba->sli4_hba.nvmet_cqset == NULL))
13141 idx = cq->queue_id - phba->sli4_hba.nvmet_cqset[0]->queue_id;
13142 hrq = phba->sli4_hba.nvmet_mrq_hdr[idx];
13143 drq = phba->sli4_hba.nvmet_mrq_data[idx];
13145 /* sanity check on queue memory */
13146 if (unlikely(!hrq) || unlikely(!drq))
13149 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
13150 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
13152 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
13154 if ((phba->nvmet_support == 0) ||
13155 (rq_id != hrq->queue_id))
13158 status = bf_get(lpfc_rcqe_status, rcqe);
13160 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
13161 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13162 "6126 Receive Frame Truncated!!\n");
13163 hrq->RQ_buf_trunc++;
13165 case FC_STATUS_RQ_SUCCESS:
13166 lpfc_sli4_rq_release(hrq, drq);
13167 spin_lock_irqsave(&phba->hbalock, iflags);
13168 dma_buf = lpfc_sli_rqbuf_get(phba, hrq);
13170 hrq->RQ_no_buf_found++;
13171 spin_unlock_irqrestore(&phba->hbalock, iflags);
13174 spin_unlock_irqrestore(&phba->hbalock, iflags);
13176 fc_hdr = (struct fc_frame_header *)dma_buf->hbuf.virt;
13178 /* Just some basic sanity checks on FCP Command frame */
13179 fctl = (fc_hdr->fh_f_ctl[0] << 16 |
13180 fc_hdr->fh_f_ctl[1] << 8 |
13181 fc_hdr->fh_f_ctl[2]);
13183 (FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT)) !=
13184 (FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT)) ||
13185 (fc_hdr->fh_seq_cnt != 0)) /* 0 byte swapped is still 0 */
13188 if (fc_hdr->fh_type == FC_TYPE_FCP) {
13189 dma_buf->bytes_recv = bf_get(lpfc_rcqe_length, rcqe);
13190 lpfc_nvmet_unsol_fcp_event(
13191 phba, phba->sli4_hba.els_wq->pring, dma_buf,
13192 cq->assoc_qp->isr_timestamp);
13196 lpfc_in_buf_free(phba, &dma_buf->dbuf);
13198 case FC_STATUS_INSUFF_BUF_NEED_BUF:
13199 case FC_STATUS_INSUFF_BUF_FRM_DISC:
13200 hrq->RQ_no_posted_buf++;
13201 /* Post more buffers if possible */
13202 spin_lock_irqsave(&phba->hbalock, iflags);
13203 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
13204 spin_unlock_irqrestore(&phba->hbalock, iflags);
13213 * lpfc_sli4_fp_handle_cqe - Process fast-path work queue completion entry
13214 * @cq: Pointer to the completion queue.
13215 * @eqe: Pointer to fast-path completion queue entry.
13217 * This routine process a fast-path work queue completion entry from fast-path
13218 * event queue for FCP command response completion.
13221 lpfc_sli4_fp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13222 struct lpfc_cqe *cqe)
13224 struct lpfc_wcqe_release wcqe;
13225 bool workposted = false;
13227 /* Copy the work queue CQE and convert endian order if needed */
13228 lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
13230 /* Check and process for different type of WCQE and dispatch */
13231 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
13232 case CQE_CODE_COMPL_WQE:
13233 case CQE_CODE_NVME_ERSP:
13235 /* Process the WQ complete event */
13236 phba->last_completion_time = jiffies;
13237 if ((cq->subtype == LPFC_FCP) || (cq->subtype == LPFC_NVME))
13238 lpfc_sli4_fp_handle_fcp_wcqe(phba, cq,
13239 (struct lpfc_wcqe_complete *)&wcqe);
13240 if (cq->subtype == LPFC_NVME_LS)
13241 lpfc_sli4_fp_handle_fcp_wcqe(phba, cq,
13242 (struct lpfc_wcqe_complete *)&wcqe);
13244 case CQE_CODE_RELEASE_WQE:
13245 cq->CQ_release_wqe++;
13246 /* Process the WQ release event */
13247 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
13248 (struct lpfc_wcqe_release *)&wcqe);
13250 case CQE_CODE_XRI_ABORTED:
13251 cq->CQ_xri_aborted++;
13252 /* Process the WQ XRI abort event */
13253 phba->last_completion_time = jiffies;
13254 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
13255 (struct sli4_wcqe_xri_aborted *)&wcqe);
13257 case CQE_CODE_RECEIVE_V1:
13258 case CQE_CODE_RECEIVE:
13259 phba->last_completion_time = jiffies;
13260 if (cq->subtype == LPFC_NVMET) {
13261 workposted = lpfc_sli4_nvmet_handle_rcqe(
13262 phba, cq, (struct lpfc_rcqe *)&wcqe);
13266 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13267 "0144 Not a valid CQE code: x%x\n",
13268 bf_get(lpfc_wcqe_c_code, &wcqe));
13275 * lpfc_sli4_hba_handle_eqe - Process a fast-path event queue entry
13276 * @phba: Pointer to HBA context object.
13277 * @eqe: Pointer to fast-path event queue entry.
13279 * This routine process a event queue entry from the fast-path event queue.
13280 * It will check the MajorCode and MinorCode to determine this is for a
13281 * completion event on a completion queue, if not, an error shall be logged
13282 * and just return. Otherwise, it will get to the corresponding completion
13283 * queue and process all the entries on the completion queue, rearm the
13284 * completion queue, and then return.
13287 lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
13290 struct lpfc_queue *cq = NULL;
13291 struct lpfc_cqe *cqe;
13292 bool workposted = false;
13296 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
13297 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13298 "0366 Not a valid completion "
13299 "event: majorcode=x%x, minorcode=x%x\n",
13300 bf_get_le32(lpfc_eqe_major_code, eqe),
13301 bf_get_le32(lpfc_eqe_minor_code, eqe));
13305 /* Get the reference to the corresponding CQ */
13306 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
13308 if (phba->cfg_nvmet_mrq && phba->sli4_hba.nvmet_cqset) {
13309 id = phba->sli4_hba.nvmet_cqset[0]->queue_id;
13310 if ((cqid >= id) && (cqid < (id + phba->cfg_nvmet_mrq))) {
13311 /* Process NVMET unsol rcv */
13312 cq = phba->sli4_hba.nvmet_cqset[cqid - id];
13317 if (phba->sli4_hba.nvme_cq_map &&
13318 (cqid == phba->sli4_hba.nvme_cq_map[qidx])) {
13319 /* Process NVME / NVMET command completion */
13320 cq = phba->sli4_hba.nvme_cq[qidx];
13324 if (phba->sli4_hba.fcp_cq_map &&
13325 (cqid == phba->sli4_hba.fcp_cq_map[qidx])) {
13326 /* Process FCP command completion */
13327 cq = phba->sli4_hba.fcp_cq[qidx];
13331 if (phba->sli4_hba.nvmels_cq &&
13332 (cqid == phba->sli4_hba.nvmels_cq->queue_id)) {
13333 /* Process NVME unsol rcv */
13334 cq = phba->sli4_hba.nvmels_cq;
13337 /* Otherwise this is a Slow path event */
13339 lpfc_sli4_sp_handle_eqe(phba, eqe, phba->sli4_hba.hba_eq[qidx]);
13344 if (unlikely(cqid != cq->queue_id)) {
13345 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13346 "0368 Miss-matched fast-path completion "
13347 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
13348 cqid, cq->queue_id);
13352 /* Save EQ associated with this CQ */
13353 cq->assoc_qp = phba->sli4_hba.hba_eq[qidx];
13355 /* Process all the entries to the CQ */
13356 while ((cqe = lpfc_sli4_cq_get(cq))) {
13357 workposted |= lpfc_sli4_fp_handle_cqe(phba, cq, cqe);
13358 if (!(++ecount % cq->entry_repost))
13359 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
13362 /* Track the max number of CQEs processed in 1 EQ */
13363 if (ecount > cq->CQ_max_cqe)
13364 cq->CQ_max_cqe = ecount;
13366 /* Catch the no cq entry condition */
13367 if (unlikely(ecount == 0))
13368 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13369 "0369 No entry from fast-path completion "
13370 "queue fcpcqid=%d\n", cq->queue_id);
13372 /* In any case, flash and re-arm the CQ */
13373 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
13375 /* wake up worker thread if there are works to be done */
13377 lpfc_worker_wake_up(phba);
13381 lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
13383 struct lpfc_eqe *eqe;
13385 /* walk all the EQ entries and drop on the floor */
13386 while ((eqe = lpfc_sli4_eq_get(eq)))
13389 /* Clear and re-arm the EQ */
13390 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
13395 * lpfc_sli4_fof_handle_eqe - Process a Flash Optimized Fabric event queue
13397 * @phba: Pointer to HBA context object.
13398 * @eqe: Pointer to fast-path event queue entry.
13400 * This routine process a event queue entry from the Flash Optimized Fabric
13401 * event queue. It will check the MajorCode and MinorCode to determine this
13402 * is for a completion event on a completion queue, if not, an error shall be
13403 * logged and just return. Otherwise, it will get to the corresponding
13404 * completion queue and process all the entries on the completion queue, rearm
13405 * the completion queue, and then return.
13408 lpfc_sli4_fof_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe)
13410 struct lpfc_queue *cq;
13411 struct lpfc_cqe *cqe;
13412 bool workposted = false;
13416 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
13417 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13418 "9147 Not a valid completion "
13419 "event: majorcode=x%x, minorcode=x%x\n",
13420 bf_get_le32(lpfc_eqe_major_code, eqe),
13421 bf_get_le32(lpfc_eqe_minor_code, eqe));
13425 /* Get the reference to the corresponding CQ */
13426 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
13428 /* Next check for OAS */
13429 cq = phba->sli4_hba.oas_cq;
13430 if (unlikely(!cq)) {
13431 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
13432 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13433 "9148 OAS completion queue "
13434 "does not exist\n");
13438 if (unlikely(cqid != cq->queue_id)) {
13439 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13440 "9149 Miss-matched fast-path compl "
13441 "queue id: eqcqid=%d, fcpcqid=%d\n",
13442 cqid, cq->queue_id);
13446 /* Process all the entries to the OAS CQ */
13447 while ((cqe = lpfc_sli4_cq_get(cq))) {
13448 workposted |= lpfc_sli4_fp_handle_cqe(phba, cq, cqe);
13449 if (!(++ecount % cq->entry_repost))
13450 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
13453 /* Track the max number of CQEs processed in 1 EQ */
13454 if (ecount > cq->CQ_max_cqe)
13455 cq->CQ_max_cqe = ecount;
13457 /* Catch the no cq entry condition */
13458 if (unlikely(ecount == 0))
13459 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13460 "9153 No entry from fast-path completion "
13461 "queue fcpcqid=%d\n", cq->queue_id);
13463 /* In any case, flash and re-arm the CQ */
13464 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
13466 /* wake up worker thread if there are works to be done */
13468 lpfc_worker_wake_up(phba);
13472 * lpfc_sli4_fof_intr_handler - HBA interrupt handler to SLI-4 device
13473 * @irq: Interrupt number.
13474 * @dev_id: The device context pointer.
13476 * This function is directly called from the PCI layer as an interrupt
13477 * service routine when device with SLI-4 interface spec is enabled with
13478 * MSI-X multi-message interrupt mode and there is a Flash Optimized Fabric
13479 * IOCB ring event in the HBA. However, when the device is enabled with either
13480 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
13481 * device-level interrupt handler. When the PCI slot is in error recovery
13482 * or the HBA is undergoing initialization, the interrupt handler will not
13483 * process the interrupt. The Flash Optimized Fabric ring event are handled in
13484 * the intrrupt context. This function is called without any lock held.
13485 * It gets the hbalock to access and update SLI data structures. Note that,
13486 * the EQ to CQ are one-to-one map such that the EQ index is
13487 * equal to that of CQ index.
13489 * This function returns IRQ_HANDLED when interrupt is handled else it
13490 * returns IRQ_NONE.
13493 lpfc_sli4_fof_intr_handler(int irq, void *dev_id)
13495 struct lpfc_hba *phba;
13496 struct lpfc_hba_eq_hdl *hba_eq_hdl;
13497 struct lpfc_queue *eq;
13498 struct lpfc_eqe *eqe;
13499 unsigned long iflag;
13502 /* Get the driver's phba structure from the dev_id */
13503 hba_eq_hdl = (struct lpfc_hba_eq_hdl *)dev_id;
13504 phba = hba_eq_hdl->phba;
13506 if (unlikely(!phba))
13509 /* Get to the EQ struct associated with this vector */
13510 eq = phba->sli4_hba.fof_eq;
13514 /* Check device state for handling interrupt */
13515 if (unlikely(lpfc_intr_state_check(phba))) {
13517 /* Check again for link_state with lock held */
13518 spin_lock_irqsave(&phba->hbalock, iflag);
13519 if (phba->link_state < LPFC_LINK_DOWN)
13520 /* Flush, clear interrupt, and rearm the EQ */
13521 lpfc_sli4_eq_flush(phba, eq);
13522 spin_unlock_irqrestore(&phba->hbalock, iflag);
13527 * Process all the event on FCP fast-path EQ
13529 while ((eqe = lpfc_sli4_eq_get(eq))) {
13530 lpfc_sli4_fof_handle_eqe(phba, eqe);
13531 if (!(++ecount % eq->entry_repost))
13532 lpfc_sli4_eq_release(eq, LPFC_QUEUE_NOARM);
13533 eq->EQ_processed++;
13536 /* Track the max number of EQEs processed in 1 intr */
13537 if (ecount > eq->EQ_max_eqe)
13538 eq->EQ_max_eqe = ecount;
13541 if (unlikely(ecount == 0)) {
13544 if (phba->intr_type == MSIX)
13545 /* MSI-X treated interrupt served as no EQ share INT */
13546 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13547 "9145 MSI-X interrupt with no EQE\n");
13549 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13550 "9146 ISR interrupt with no EQE\n");
13551 /* Non MSI-X treated on interrupt as EQ share INT */
13555 /* Always clear and re-arm the fast-path EQ */
13556 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
13557 return IRQ_HANDLED;
13561 * lpfc_sli4_hba_intr_handler - HBA interrupt handler to SLI-4 device
13562 * @irq: Interrupt number.
13563 * @dev_id: The device context pointer.
13565 * This function is directly called from the PCI layer as an interrupt
13566 * service routine when device with SLI-4 interface spec is enabled with
13567 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
13568 * ring event in the HBA. However, when the device is enabled with either
13569 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
13570 * device-level interrupt handler. When the PCI slot is in error recovery
13571 * or the HBA is undergoing initialization, the interrupt handler will not
13572 * process the interrupt. The SCSI FCP fast-path ring event are handled in
13573 * the intrrupt context. This function is called without any lock held.
13574 * It gets the hbalock to access and update SLI data structures. Note that,
13575 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
13576 * equal to that of FCP CQ index.
13578 * The link attention and ELS ring attention events are handled
13579 * by the worker thread. The interrupt handler signals the worker thread
13580 * and returns for these events. This function is called without any lock
13581 * held. It gets the hbalock to access and update SLI data structures.
13583 * This function returns IRQ_HANDLED when interrupt is handled else it
13584 * returns IRQ_NONE.
13587 lpfc_sli4_hba_intr_handler(int irq, void *dev_id)
13589 struct lpfc_hba *phba;
13590 struct lpfc_hba_eq_hdl *hba_eq_hdl;
13591 struct lpfc_queue *fpeq;
13592 struct lpfc_eqe *eqe;
13593 unsigned long iflag;
13597 /* Get the driver's phba structure from the dev_id */
13598 hba_eq_hdl = (struct lpfc_hba_eq_hdl *)dev_id;
13599 phba = hba_eq_hdl->phba;
13600 hba_eqidx = hba_eq_hdl->idx;
13602 if (unlikely(!phba))
13604 if (unlikely(!phba->sli4_hba.hba_eq))
13607 /* Get to the EQ struct associated with this vector */
13608 fpeq = phba->sli4_hba.hba_eq[hba_eqidx];
13609 if (unlikely(!fpeq))
13612 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
13613 if (phba->ktime_on)
13614 fpeq->isr_timestamp = ktime_get_ns();
13617 if (lpfc_fcp_look_ahead) {
13618 if (atomic_dec_and_test(&hba_eq_hdl->hba_eq_in_use))
13619 lpfc_sli4_eq_clr_intr(fpeq);
13621 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
13626 /* Check device state for handling interrupt */
13627 if (unlikely(lpfc_intr_state_check(phba))) {
13628 fpeq->EQ_badstate++;
13629 /* Check again for link_state with lock held */
13630 spin_lock_irqsave(&phba->hbalock, iflag);
13631 if (phba->link_state < LPFC_LINK_DOWN)
13632 /* Flush, clear interrupt, and rearm the EQ */
13633 lpfc_sli4_eq_flush(phba, fpeq);
13634 spin_unlock_irqrestore(&phba->hbalock, iflag);
13635 if (lpfc_fcp_look_ahead)
13636 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
13641 * Process all the event on FCP fast-path EQ
13643 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
13647 lpfc_sli4_hba_handle_eqe(phba, eqe, hba_eqidx);
13648 if (!(++ecount % fpeq->entry_repost))
13649 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM);
13650 fpeq->EQ_processed++;
13653 /* Track the max number of EQEs processed in 1 intr */
13654 if (ecount > fpeq->EQ_max_eqe)
13655 fpeq->EQ_max_eqe = ecount;
13657 /* Always clear and re-arm the fast-path EQ */
13658 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
13660 if (unlikely(ecount == 0)) {
13661 fpeq->EQ_no_entry++;
13663 if (lpfc_fcp_look_ahead) {
13664 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
13668 if (phba->intr_type == MSIX)
13669 /* MSI-X treated interrupt served as no EQ share INT */
13670 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13671 "0358 MSI-X interrupt with no EQE\n");
13673 /* Non MSI-X treated on interrupt as EQ share INT */
13677 if (lpfc_fcp_look_ahead)
13678 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
13680 return IRQ_HANDLED;
13681 } /* lpfc_sli4_fp_intr_handler */
13684 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
13685 * @irq: Interrupt number.
13686 * @dev_id: The device context pointer.
13688 * This function is the device-level interrupt handler to device with SLI-4
13689 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
13690 * interrupt mode is enabled and there is an event in the HBA which requires
13691 * driver attention. This function invokes the slow-path interrupt attention
13692 * handling function and fast-path interrupt attention handling function in
13693 * turn to process the relevant HBA attention events. This function is called
13694 * without any lock held. It gets the hbalock to access and update SLI data
13697 * This function returns IRQ_HANDLED when interrupt is handled, else it
13698 * returns IRQ_NONE.
13701 lpfc_sli4_intr_handler(int irq, void *dev_id)
13703 struct lpfc_hba *phba;
13704 irqreturn_t hba_irq_rc;
13705 bool hba_handled = false;
13708 /* Get the driver's phba structure from the dev_id */
13709 phba = (struct lpfc_hba *)dev_id;
13711 if (unlikely(!phba))
13715 * Invoke fast-path host attention interrupt handling as appropriate.
13717 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++) {
13718 hba_irq_rc = lpfc_sli4_hba_intr_handler(irq,
13719 &phba->sli4_hba.hba_eq_hdl[qidx]);
13720 if (hba_irq_rc == IRQ_HANDLED)
13721 hba_handled |= true;
13724 if (phba->cfg_fof) {
13725 hba_irq_rc = lpfc_sli4_fof_intr_handler(irq,
13726 &phba->sli4_hba.hba_eq_hdl[qidx]);
13727 if (hba_irq_rc == IRQ_HANDLED)
13728 hba_handled |= true;
13731 return (hba_handled == true) ? IRQ_HANDLED : IRQ_NONE;
13732 } /* lpfc_sli4_intr_handler */
13735 * lpfc_sli4_queue_free - free a queue structure and associated memory
13736 * @queue: The queue structure to free.
13738 * This function frees a queue structure and the DMAable memory used for
13739 * the host resident queue. This function must be called after destroying the
13740 * queue on the HBA.
13743 lpfc_sli4_queue_free(struct lpfc_queue *queue)
13745 struct lpfc_dmabuf *dmabuf;
13750 while (!list_empty(&queue->page_list)) {
13751 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
13753 dma_free_coherent(&queue->phba->pcidev->dev, SLI4_PAGE_SIZE,
13754 dmabuf->virt, dmabuf->phys);
13758 lpfc_free_rq_buffer(queue->phba, queue);
13759 kfree(queue->rqbp);
13761 kfree(queue->pring);
13767 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
13768 * @phba: The HBA that this queue is being created on.
13769 * @entry_size: The size of each queue entry for this queue.
13770 * @entry count: The number of entries that this queue will handle.
13772 * This function allocates a queue structure and the DMAable memory used for
13773 * the host resident queue. This function must be called before creating the
13774 * queue on the HBA.
13776 struct lpfc_queue *
13777 lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size,
13778 uint32_t entry_count)
13780 struct lpfc_queue *queue;
13781 struct lpfc_dmabuf *dmabuf;
13782 int x, total_qe_count;
13784 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
13786 if (!phba->sli4_hba.pc_sli4_params.supported)
13787 hw_page_size = SLI4_PAGE_SIZE;
13789 queue = kzalloc(sizeof(struct lpfc_queue) +
13790 (sizeof(union sli4_qe) * entry_count), GFP_KERNEL);
13793 queue->page_count = (ALIGN(entry_size * entry_count,
13794 hw_page_size))/hw_page_size;
13796 /* If needed, Adjust page count to match the max the adapter supports */
13797 if (queue->page_count > phba->sli4_hba.pc_sli4_params.wqpcnt)
13798 queue->page_count = phba->sli4_hba.pc_sli4_params.wqpcnt;
13800 INIT_LIST_HEAD(&queue->list);
13801 INIT_LIST_HEAD(&queue->wq_list);
13802 INIT_LIST_HEAD(&queue->page_list);
13803 INIT_LIST_HEAD(&queue->child_list);
13804 for (x = 0, total_qe_count = 0; x < queue->page_count; x++) {
13805 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
13808 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
13809 hw_page_size, &dmabuf->phys,
13811 if (!dmabuf->virt) {
13815 dmabuf->buffer_tag = x;
13816 list_add_tail(&dmabuf->list, &queue->page_list);
13817 /* initialize queue's entry array */
13818 dma_pointer = dmabuf->virt;
13819 for (; total_qe_count < entry_count &&
13820 dma_pointer < (hw_page_size + dmabuf->virt);
13821 total_qe_count++, dma_pointer += entry_size) {
13822 queue->qe[total_qe_count].address = dma_pointer;
13825 queue->entry_size = entry_size;
13826 queue->entry_count = entry_count;
13829 * entry_repost is calculated based on the number of entries in the
13830 * queue. This works out except for RQs. If buffers are NOT initially
13831 * posted for every RQE, entry_repost should be adjusted accordingly.
13833 queue->entry_repost = (entry_count >> 3);
13834 if (queue->entry_repost < LPFC_QUEUE_MIN_REPOST)
13835 queue->entry_repost = LPFC_QUEUE_MIN_REPOST;
13836 queue->phba = phba;
13840 lpfc_sli4_queue_free(queue);
13845 * lpfc_dual_chute_pci_bar_map - Map pci base address register to host memory
13846 * @phba: HBA structure that indicates port to create a queue on.
13847 * @pci_barset: PCI BAR set flag.
13849 * This function shall perform iomap of the specified PCI BAR address to host
13850 * memory address if not already done so and return it. The returned host
13851 * memory address can be NULL.
13853 static void __iomem *
13854 lpfc_dual_chute_pci_bar_map(struct lpfc_hba *phba, uint16_t pci_barset)
13859 switch (pci_barset) {
13860 case WQ_PCI_BAR_0_AND_1:
13861 return phba->pci_bar0_memmap_p;
13862 case WQ_PCI_BAR_2_AND_3:
13863 return phba->pci_bar2_memmap_p;
13864 case WQ_PCI_BAR_4_AND_5:
13865 return phba->pci_bar4_memmap_p;
13873 * lpfc_modify_hba_eq_delay - Modify Delay Multiplier on FCP EQs
13874 * @phba: HBA structure that indicates port to create a queue on.
13875 * @startq: The starting FCP EQ to modify
13877 * This function sends an MODIFY_EQ_DELAY mailbox command to the HBA.
13878 * The command allows up to LPFC_MAX_EQ_DELAY_EQID_CNT EQ ID's to be
13879 * updated in one mailbox command.
13881 * The @phba struct is used to send mailbox command to HBA. The @startq
13882 * is used to get the starting FCP EQ to change.
13883 * This function is asynchronous and will wait for the mailbox
13884 * command to finish before continuing.
13886 * On success this function will return a zero. If unable to allocate enough
13887 * memory this function will return -ENOMEM. If the queue create mailbox command
13888 * fails this function will return -ENXIO.
13891 lpfc_modify_hba_eq_delay(struct lpfc_hba *phba, uint32_t startq)
13893 struct lpfc_mbx_modify_eq_delay *eq_delay;
13894 LPFC_MBOXQ_t *mbox;
13895 struct lpfc_queue *eq;
13896 int cnt, rc, length, status = 0;
13897 uint32_t shdr_status, shdr_add_status;
13900 union lpfc_sli4_cfg_shdr *shdr;
13903 if (startq >= phba->io_channel_irqs)
13906 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13909 length = (sizeof(struct lpfc_mbx_modify_eq_delay) -
13910 sizeof(struct lpfc_sli4_cfg_mhdr));
13911 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13912 LPFC_MBOX_OPCODE_MODIFY_EQ_DELAY,
13913 length, LPFC_SLI4_MBX_EMBED);
13914 eq_delay = &mbox->u.mqe.un.eq_delay;
13916 /* Calculate delay multiper from maximum interrupt per second */
13917 result = phba->cfg_fcp_imax / phba->io_channel_irqs;
13918 if (result > LPFC_DMULT_CONST || result == 0)
13921 dmult = LPFC_DMULT_CONST/result - 1;
13924 for (qidx = startq; qidx < phba->io_channel_irqs; qidx++) {
13925 eq = phba->sli4_hba.hba_eq[qidx];
13928 eq_delay->u.request.eq[cnt].eq_id = eq->queue_id;
13929 eq_delay->u.request.eq[cnt].phase = 0;
13930 eq_delay->u.request.eq[cnt].delay_multi = dmult;
13932 if (cnt >= LPFC_MAX_EQ_DELAY_EQID_CNT)
13935 eq_delay->u.request.num_eq = cnt;
13937 mbox->vport = phba->pport;
13938 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13939 mbox->context1 = NULL;
13940 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13941 shdr = (union lpfc_sli4_cfg_shdr *) &eq_delay->header.cfg_shdr;
13942 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13943 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13944 if (shdr_status || shdr_add_status || rc) {
13945 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13946 "2512 MODIFY_EQ_DELAY mailbox failed with "
13947 "status x%x add_status x%x, mbx status x%x\n",
13948 shdr_status, shdr_add_status, rc);
13951 mempool_free(mbox, phba->mbox_mem_pool);
13956 * lpfc_eq_create - Create an Event Queue on the HBA
13957 * @phba: HBA structure that indicates port to create a queue on.
13958 * @eq: The queue structure to use to create the event queue.
13959 * @imax: The maximum interrupt per second limit.
13961 * This function creates an event queue, as detailed in @eq, on a port,
13962 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
13964 * The @phba struct is used to send mailbox command to HBA. The @eq struct
13965 * is used to get the entry count and entry size that are necessary to
13966 * determine the number of pages to allocate and use for this queue. This
13967 * function will send the EQ_CREATE mailbox command to the HBA to setup the
13968 * event queue. This function is asynchronous and will wait for the mailbox
13969 * command to finish before continuing.
13971 * On success this function will return a zero. If unable to allocate enough
13972 * memory this function will return -ENOMEM. If the queue create mailbox command
13973 * fails this function will return -ENXIO.
13976 lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint32_t imax)
13978 struct lpfc_mbx_eq_create *eq_create;
13979 LPFC_MBOXQ_t *mbox;
13980 int rc, length, status = 0;
13981 struct lpfc_dmabuf *dmabuf;
13982 uint32_t shdr_status, shdr_add_status;
13983 union lpfc_sli4_cfg_shdr *shdr;
13985 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
13987 /* sanity check on queue memory */
13990 if (!phba->sli4_hba.pc_sli4_params.supported)
13991 hw_page_size = SLI4_PAGE_SIZE;
13993 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13996 length = (sizeof(struct lpfc_mbx_eq_create) -
13997 sizeof(struct lpfc_sli4_cfg_mhdr));
13998 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13999 LPFC_MBOX_OPCODE_EQ_CREATE,
14000 length, LPFC_SLI4_MBX_EMBED);
14001 eq_create = &mbox->u.mqe.un.eq_create;
14002 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
14004 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
14006 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
14007 /* don't setup delay multiplier using EQ_CREATE */
14009 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
14011 switch (eq->entry_count) {
14013 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14014 "0360 Unsupported EQ count. (%d)\n",
14016 if (eq->entry_count < 256)
14018 /* otherwise default to smallest count (drop through) */
14020 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14024 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14028 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14032 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14036 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14040 list_for_each_entry(dmabuf, &eq->page_list, list) {
14041 memset(dmabuf->virt, 0, hw_page_size);
14042 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
14043 putPaddrLow(dmabuf->phys);
14044 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
14045 putPaddrHigh(dmabuf->phys);
14047 mbox->vport = phba->pport;
14048 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14049 mbox->context1 = NULL;
14050 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14051 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
14052 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14053 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14054 if (shdr_status || shdr_add_status || rc) {
14055 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14056 "2500 EQ_CREATE mailbox failed with "
14057 "status x%x add_status x%x, mbx status x%x\n",
14058 shdr_status, shdr_add_status, rc);
14061 eq->type = LPFC_EQ;
14062 eq->subtype = LPFC_NONE;
14063 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
14064 if (eq->queue_id == 0xFFFF)
14066 eq->host_index = 0;
14069 mempool_free(mbox, phba->mbox_mem_pool);
14074 * lpfc_cq_create - Create a Completion Queue on the HBA
14075 * @phba: HBA structure that indicates port to create a queue on.
14076 * @cq: The queue structure to use to create the completion queue.
14077 * @eq: The event queue to bind this completion queue to.
14079 * This function creates a completion queue, as detailed in @wq, on a port,
14080 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
14082 * The @phba struct is used to send mailbox command to HBA. The @cq struct
14083 * is used to get the entry count and entry size that are necessary to
14084 * determine the number of pages to allocate and use for this queue. The @eq
14085 * is used to indicate which event queue to bind this completion queue to. This
14086 * function will send the CQ_CREATE mailbox command to the HBA to setup the
14087 * completion queue. This function is asynchronous and will wait for the mailbox
14088 * command to finish before continuing.
14090 * On success this function will return a zero. If unable to allocate enough
14091 * memory this function will return -ENOMEM. If the queue create mailbox command
14092 * fails this function will return -ENXIO.
14095 lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
14096 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
14098 struct lpfc_mbx_cq_create *cq_create;
14099 struct lpfc_dmabuf *dmabuf;
14100 LPFC_MBOXQ_t *mbox;
14101 int rc, length, status = 0;
14102 uint32_t shdr_status, shdr_add_status;
14103 union lpfc_sli4_cfg_shdr *shdr;
14104 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
14106 /* sanity check on queue memory */
14109 if (!phba->sli4_hba.pc_sli4_params.supported)
14110 hw_page_size = SLI4_PAGE_SIZE;
14112 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14115 length = (sizeof(struct lpfc_mbx_cq_create) -
14116 sizeof(struct lpfc_sli4_cfg_mhdr));
14117 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14118 LPFC_MBOX_OPCODE_CQ_CREATE,
14119 length, LPFC_SLI4_MBX_EMBED);
14120 cq_create = &mbox->u.mqe.un.cq_create;
14121 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
14122 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
14124 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
14125 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
14126 bf_set(lpfc_mbox_hdr_version, &shdr->request,
14127 phba->sli4_hba.pc_sli4_params.cqv);
14128 if (phba->sli4_hba.pc_sli4_params.cqv == LPFC_Q_CREATE_VERSION_2) {
14129 /* FW only supports 1. Should be PAGE_SIZE/SLI4_PAGE_SIZE */
14130 bf_set(lpfc_mbx_cq_create_page_size, &cq_create->u.request, 1);
14131 bf_set(lpfc_cq_eq_id_2, &cq_create->u.request.context,
14134 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context,
14137 switch (cq->entry_count) {
14139 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14140 "0361 Unsupported CQ count: "
14141 "entry cnt %d sz %d pg cnt %d repost %d\n",
14142 cq->entry_count, cq->entry_size,
14143 cq->page_count, cq->entry_repost);
14144 if (cq->entry_count < 256) {
14148 /* otherwise default to smallest count (drop through) */
14150 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
14154 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
14158 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
14162 list_for_each_entry(dmabuf, &cq->page_list, list) {
14163 memset(dmabuf->virt, 0, hw_page_size);
14164 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
14165 putPaddrLow(dmabuf->phys);
14166 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
14167 putPaddrHigh(dmabuf->phys);
14169 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14171 /* The IOCTL status is embedded in the mailbox subheader. */
14172 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14173 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14174 if (shdr_status || shdr_add_status || rc) {
14175 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14176 "2501 CQ_CREATE mailbox failed with "
14177 "status x%x add_status x%x, mbx status x%x\n",
14178 shdr_status, shdr_add_status, rc);
14182 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
14183 if (cq->queue_id == 0xFFFF) {
14187 /* link the cq onto the parent eq child list */
14188 list_add_tail(&cq->list, &eq->child_list);
14189 /* Set up completion queue's type and subtype */
14191 cq->subtype = subtype;
14192 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
14193 cq->assoc_qid = eq->queue_id;
14194 cq->host_index = 0;
14198 mempool_free(mbox, phba->mbox_mem_pool);
14203 * lpfc_cq_create_set - Create a set of Completion Queues on the HBA for MRQ
14204 * @phba: HBA structure that indicates port to create a queue on.
14205 * @cqp: The queue structure array to use to create the completion queues.
14206 * @eqp: The event queue array to bind these completion queues to.
14208 * This function creates a set of completion queue, s to support MRQ
14209 * as detailed in @cqp, on a port,
14210 * described by @phba by sending a CREATE_CQ_SET mailbox command to the HBA.
14212 * The @phba struct is used to send mailbox command to HBA. The @cq struct
14213 * is used to get the entry count and entry size that are necessary to
14214 * determine the number of pages to allocate and use for this queue. The @eq
14215 * is used to indicate which event queue to bind this completion queue to. This
14216 * function will send the CREATE_CQ_SET mailbox command to the HBA to setup the
14217 * completion queue. This function is asynchronous and will wait for the mailbox
14218 * command to finish before continuing.
14220 * On success this function will return a zero. If unable to allocate enough
14221 * memory this function will return -ENOMEM. If the queue create mailbox command
14222 * fails this function will return -ENXIO.
14225 lpfc_cq_create_set(struct lpfc_hba *phba, struct lpfc_queue **cqp,
14226 struct lpfc_queue **eqp, uint32_t type, uint32_t subtype)
14228 struct lpfc_queue *cq;
14229 struct lpfc_queue *eq;
14230 struct lpfc_mbx_cq_create_set *cq_set;
14231 struct lpfc_dmabuf *dmabuf;
14232 LPFC_MBOXQ_t *mbox;
14233 int rc, length, alloclen, status = 0;
14234 int cnt, idx, numcq, page_idx = 0;
14235 uint32_t shdr_status, shdr_add_status;
14236 union lpfc_sli4_cfg_shdr *shdr;
14237 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
14239 /* sanity check on queue memory */
14240 numcq = phba->cfg_nvmet_mrq;
14241 if (!cqp || !eqp || !numcq)
14243 if (!phba->sli4_hba.pc_sli4_params.supported)
14244 hw_page_size = SLI4_PAGE_SIZE;
14246 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14250 length = sizeof(struct lpfc_mbx_cq_create_set);
14251 length += ((numcq * cqp[0]->page_count) *
14252 sizeof(struct dma_address));
14253 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14254 LPFC_MBOX_OPCODE_FCOE_CQ_CREATE_SET, length,
14255 LPFC_SLI4_MBX_NEMBED);
14256 if (alloclen < length) {
14257 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14258 "3098 Allocated DMA memory size (%d) is "
14259 "less than the requested DMA memory size "
14260 "(%d)\n", alloclen, length);
14264 cq_set = mbox->sge_array->addr[0];
14265 shdr = (union lpfc_sli4_cfg_shdr *)&cq_set->cfg_shdr;
14266 bf_set(lpfc_mbox_hdr_version, &shdr->request, 0);
14268 for (idx = 0; idx < numcq; idx++) {
14278 bf_set(lpfc_mbx_cq_create_set_page_size,
14279 &cq_set->u.request,
14280 (hw_page_size / SLI4_PAGE_SIZE));
14281 bf_set(lpfc_mbx_cq_create_set_num_pages,
14282 &cq_set->u.request, cq->page_count);
14283 bf_set(lpfc_mbx_cq_create_set_evt,
14284 &cq_set->u.request, 1);
14285 bf_set(lpfc_mbx_cq_create_set_valid,
14286 &cq_set->u.request, 1);
14287 bf_set(lpfc_mbx_cq_create_set_cqe_size,
14288 &cq_set->u.request, 0);
14289 bf_set(lpfc_mbx_cq_create_set_num_cq,
14290 &cq_set->u.request, numcq);
14291 switch (cq->entry_count) {
14293 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14294 "3118 Bad CQ count. (%d)\n",
14296 if (cq->entry_count < 256) {
14300 /* otherwise default to smallest (drop thru) */
14302 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
14303 &cq_set->u.request, LPFC_CQ_CNT_256);
14306 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
14307 &cq_set->u.request, LPFC_CQ_CNT_512);
14310 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
14311 &cq_set->u.request, LPFC_CQ_CNT_1024);
14314 bf_set(lpfc_mbx_cq_create_set_eq_id0,
14315 &cq_set->u.request, eq->queue_id);
14318 bf_set(lpfc_mbx_cq_create_set_eq_id1,
14319 &cq_set->u.request, eq->queue_id);
14322 bf_set(lpfc_mbx_cq_create_set_eq_id2,
14323 &cq_set->u.request, eq->queue_id);
14326 bf_set(lpfc_mbx_cq_create_set_eq_id3,
14327 &cq_set->u.request, eq->queue_id);
14330 bf_set(lpfc_mbx_cq_create_set_eq_id4,
14331 &cq_set->u.request, eq->queue_id);
14334 bf_set(lpfc_mbx_cq_create_set_eq_id5,
14335 &cq_set->u.request, eq->queue_id);
14338 bf_set(lpfc_mbx_cq_create_set_eq_id6,
14339 &cq_set->u.request, eq->queue_id);
14342 bf_set(lpfc_mbx_cq_create_set_eq_id7,
14343 &cq_set->u.request, eq->queue_id);
14346 bf_set(lpfc_mbx_cq_create_set_eq_id8,
14347 &cq_set->u.request, eq->queue_id);
14350 bf_set(lpfc_mbx_cq_create_set_eq_id9,
14351 &cq_set->u.request, eq->queue_id);
14354 bf_set(lpfc_mbx_cq_create_set_eq_id10,
14355 &cq_set->u.request, eq->queue_id);
14358 bf_set(lpfc_mbx_cq_create_set_eq_id11,
14359 &cq_set->u.request, eq->queue_id);
14362 bf_set(lpfc_mbx_cq_create_set_eq_id12,
14363 &cq_set->u.request, eq->queue_id);
14366 bf_set(lpfc_mbx_cq_create_set_eq_id13,
14367 &cq_set->u.request, eq->queue_id);
14370 bf_set(lpfc_mbx_cq_create_set_eq_id14,
14371 &cq_set->u.request, eq->queue_id);
14374 bf_set(lpfc_mbx_cq_create_set_eq_id15,
14375 &cq_set->u.request, eq->queue_id);
14379 /* link the cq onto the parent eq child list */
14380 list_add_tail(&cq->list, &eq->child_list);
14381 /* Set up completion queue's type and subtype */
14383 cq->subtype = subtype;
14384 cq->assoc_qid = eq->queue_id;
14385 cq->host_index = 0;
14389 list_for_each_entry(dmabuf, &cq->page_list, list) {
14390 memset(dmabuf->virt, 0, hw_page_size);
14391 cnt = page_idx + dmabuf->buffer_tag;
14392 cq_set->u.request.page[cnt].addr_lo =
14393 putPaddrLow(dmabuf->phys);
14394 cq_set->u.request.page[cnt].addr_hi =
14395 putPaddrHigh(dmabuf->phys);
14401 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14403 /* The IOCTL status is embedded in the mailbox subheader. */
14404 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14405 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14406 if (shdr_status || shdr_add_status || rc) {
14407 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14408 "3119 CQ_CREATE_SET mailbox failed with "
14409 "status x%x add_status x%x, mbx status x%x\n",
14410 shdr_status, shdr_add_status, rc);
14414 rc = bf_get(lpfc_mbx_cq_create_set_base_id, &cq_set->u.response);
14415 if (rc == 0xFFFF) {
14420 for (idx = 0; idx < numcq; idx++) {
14422 cq->queue_id = rc + idx;
14426 lpfc_sli4_mbox_cmd_free(phba, mbox);
14431 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
14432 * @phba: HBA structure that indicates port to create a queue on.
14433 * @mq: The queue structure to use to create the mailbox queue.
14434 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
14435 * @cq: The completion queue to associate with this cq.
14437 * This function provides failback (fb) functionality when the
14438 * mq_create_ext fails on older FW generations. It's purpose is identical
14439 * to mq_create_ext otherwise.
14441 * This routine cannot fail as all attributes were previously accessed and
14442 * initialized in mq_create_ext.
14445 lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq,
14446 LPFC_MBOXQ_t *mbox, struct lpfc_queue *cq)
14448 struct lpfc_mbx_mq_create *mq_create;
14449 struct lpfc_dmabuf *dmabuf;
14452 length = (sizeof(struct lpfc_mbx_mq_create) -
14453 sizeof(struct lpfc_sli4_cfg_mhdr));
14454 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14455 LPFC_MBOX_OPCODE_MQ_CREATE,
14456 length, LPFC_SLI4_MBX_EMBED);
14457 mq_create = &mbox->u.mqe.un.mq_create;
14458 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
14460 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
14462 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
14463 switch (mq->entry_count) {
14465 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
14466 LPFC_MQ_RING_SIZE_16);
14469 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
14470 LPFC_MQ_RING_SIZE_32);
14473 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
14474 LPFC_MQ_RING_SIZE_64);
14477 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
14478 LPFC_MQ_RING_SIZE_128);
14481 list_for_each_entry(dmabuf, &mq->page_list, list) {
14482 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
14483 putPaddrLow(dmabuf->phys);
14484 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
14485 putPaddrHigh(dmabuf->phys);
14490 * lpfc_mq_create - Create a mailbox Queue on the HBA
14491 * @phba: HBA structure that indicates port to create a queue on.
14492 * @mq: The queue structure to use to create the mailbox queue.
14493 * @cq: The completion queue to associate with this cq.
14494 * @subtype: The queue's subtype.
14496 * This function creates a mailbox queue, as detailed in @mq, on a port,
14497 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
14499 * The @phba struct is used to send mailbox command to HBA. The @cq struct
14500 * is used to get the entry count and entry size that are necessary to
14501 * determine the number of pages to allocate and use for this queue. This
14502 * function will send the MQ_CREATE mailbox command to the HBA to setup the
14503 * mailbox queue. This function is asynchronous and will wait for the mailbox
14504 * command to finish before continuing.
14506 * On success this function will return a zero. If unable to allocate enough
14507 * memory this function will return -ENOMEM. If the queue create mailbox command
14508 * fails this function will return -ENXIO.
14511 lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
14512 struct lpfc_queue *cq, uint32_t subtype)
14514 struct lpfc_mbx_mq_create *mq_create;
14515 struct lpfc_mbx_mq_create_ext *mq_create_ext;
14516 struct lpfc_dmabuf *dmabuf;
14517 LPFC_MBOXQ_t *mbox;
14518 int rc, length, status = 0;
14519 uint32_t shdr_status, shdr_add_status;
14520 union lpfc_sli4_cfg_shdr *shdr;
14521 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
14523 /* sanity check on queue memory */
14526 if (!phba->sli4_hba.pc_sli4_params.supported)
14527 hw_page_size = SLI4_PAGE_SIZE;
14529 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14532 length = (sizeof(struct lpfc_mbx_mq_create_ext) -
14533 sizeof(struct lpfc_sli4_cfg_mhdr));
14534 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14535 LPFC_MBOX_OPCODE_MQ_CREATE_EXT,
14536 length, LPFC_SLI4_MBX_EMBED);
14538 mq_create_ext = &mbox->u.mqe.un.mq_create_ext;
14539 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr;
14540 bf_set(lpfc_mbx_mq_create_ext_num_pages,
14541 &mq_create_ext->u.request, mq->page_count);
14542 bf_set(lpfc_mbx_mq_create_ext_async_evt_link,
14543 &mq_create_ext->u.request, 1);
14544 bf_set(lpfc_mbx_mq_create_ext_async_evt_fip,
14545 &mq_create_ext->u.request, 1);
14546 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5,
14547 &mq_create_ext->u.request, 1);
14548 bf_set(lpfc_mbx_mq_create_ext_async_evt_fc,
14549 &mq_create_ext->u.request, 1);
14550 bf_set(lpfc_mbx_mq_create_ext_async_evt_sli,
14551 &mq_create_ext->u.request, 1);
14552 bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1);
14553 bf_set(lpfc_mbox_hdr_version, &shdr->request,
14554 phba->sli4_hba.pc_sli4_params.mqv);
14555 if (phba->sli4_hba.pc_sli4_params.mqv == LPFC_Q_CREATE_VERSION_1)
14556 bf_set(lpfc_mbx_mq_create_ext_cq_id, &mq_create_ext->u.request,
14559 bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context,
14561 switch (mq->entry_count) {
14563 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14564 "0362 Unsupported MQ count. (%d)\n",
14566 if (mq->entry_count < 16) {
14570 /* otherwise default to smallest count (drop through) */
14572 bf_set(lpfc_mq_context_ring_size,
14573 &mq_create_ext->u.request.context,
14574 LPFC_MQ_RING_SIZE_16);
14577 bf_set(lpfc_mq_context_ring_size,
14578 &mq_create_ext->u.request.context,
14579 LPFC_MQ_RING_SIZE_32);
14582 bf_set(lpfc_mq_context_ring_size,
14583 &mq_create_ext->u.request.context,
14584 LPFC_MQ_RING_SIZE_64);
14587 bf_set(lpfc_mq_context_ring_size,
14588 &mq_create_ext->u.request.context,
14589 LPFC_MQ_RING_SIZE_128);
14592 list_for_each_entry(dmabuf, &mq->page_list, list) {
14593 memset(dmabuf->virt, 0, hw_page_size);
14594 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_lo =
14595 putPaddrLow(dmabuf->phys);
14596 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_hi =
14597 putPaddrHigh(dmabuf->phys);
14599 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14600 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
14601 &mq_create_ext->u.response);
14602 if (rc != MBX_SUCCESS) {
14603 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14604 "2795 MQ_CREATE_EXT failed with "
14605 "status x%x. Failback to MQ_CREATE.\n",
14607 lpfc_mq_create_fb_init(phba, mq, mbox, cq);
14608 mq_create = &mbox->u.mqe.un.mq_create;
14609 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14610 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
14611 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
14612 &mq_create->u.response);
14615 /* The IOCTL status is embedded in the mailbox subheader. */
14616 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14617 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14618 if (shdr_status || shdr_add_status || rc) {
14619 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14620 "2502 MQ_CREATE mailbox failed with "
14621 "status x%x add_status x%x, mbx status x%x\n",
14622 shdr_status, shdr_add_status, rc);
14626 if (mq->queue_id == 0xFFFF) {
14630 mq->type = LPFC_MQ;
14631 mq->assoc_qid = cq->queue_id;
14632 mq->subtype = subtype;
14633 mq->host_index = 0;
14636 /* link the mq onto the parent cq child list */
14637 list_add_tail(&mq->list, &cq->child_list);
14639 mempool_free(mbox, phba->mbox_mem_pool);
14644 * lpfc_wq_create - Create a Work Queue on the HBA
14645 * @phba: HBA structure that indicates port to create a queue on.
14646 * @wq: The queue structure to use to create the work queue.
14647 * @cq: The completion queue to bind this work queue to.
14648 * @subtype: The subtype of the work queue indicating its functionality.
14650 * This function creates a work queue, as detailed in @wq, on a port, described
14651 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
14653 * The @phba struct is used to send mailbox command to HBA. The @wq struct
14654 * is used to get the entry count and entry size that are necessary to
14655 * determine the number of pages to allocate and use for this queue. The @cq
14656 * is used to indicate which completion queue to bind this work queue to. This
14657 * function will send the WQ_CREATE mailbox command to the HBA to setup the
14658 * work queue. This function is asynchronous and will wait for the mailbox
14659 * command to finish before continuing.
14661 * On success this function will return a zero. If unable to allocate enough
14662 * memory this function will return -ENOMEM. If the queue create mailbox command
14663 * fails this function will return -ENXIO.
14666 lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
14667 struct lpfc_queue *cq, uint32_t subtype)
14669 struct lpfc_mbx_wq_create *wq_create;
14670 struct lpfc_dmabuf *dmabuf;
14671 LPFC_MBOXQ_t *mbox;
14672 int rc, length, status = 0;
14673 uint32_t shdr_status, shdr_add_status;
14674 union lpfc_sli4_cfg_shdr *shdr;
14675 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
14676 struct dma_address *page;
14677 void __iomem *bar_memmap_p;
14678 uint32_t db_offset;
14679 uint16_t pci_barset;
14681 /* sanity check on queue memory */
14684 if (!phba->sli4_hba.pc_sli4_params.supported)
14685 hw_page_size = SLI4_PAGE_SIZE;
14687 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14690 length = (sizeof(struct lpfc_mbx_wq_create) -
14691 sizeof(struct lpfc_sli4_cfg_mhdr));
14692 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14693 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
14694 length, LPFC_SLI4_MBX_EMBED);
14695 wq_create = &mbox->u.mqe.un.wq_create;
14696 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
14697 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
14699 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
14702 /* wqv is the earliest version supported, NOT the latest */
14703 bf_set(lpfc_mbox_hdr_version, &shdr->request,
14704 phba->sli4_hba.pc_sli4_params.wqv);
14706 switch (phba->sli4_hba.pc_sli4_params.wqv) {
14707 case LPFC_Q_CREATE_VERSION_0:
14708 switch (wq->entry_size) {
14711 /* Nothing to do, version 0 ONLY supports 64 byte */
14712 page = wq_create->u.request.page;
14715 if (!(phba->sli4_hba.pc_sli4_params.wqsize &
14716 LPFC_WQ_SZ128_SUPPORT)) {
14720 /* If we get here the HBA MUST also support V1 and
14723 bf_set(lpfc_mbox_hdr_version, &shdr->request,
14724 LPFC_Q_CREATE_VERSION_1);
14726 bf_set(lpfc_mbx_wq_create_wqe_count,
14727 &wq_create->u.request_1, wq->entry_count);
14728 bf_set(lpfc_mbx_wq_create_wqe_size,
14729 &wq_create->u.request_1,
14730 LPFC_WQ_WQE_SIZE_128);
14731 bf_set(lpfc_mbx_wq_create_page_size,
14732 &wq_create->u.request_1,
14733 LPFC_WQ_PAGE_SIZE_4096);
14734 page = wq_create->u.request_1.page;
14738 case LPFC_Q_CREATE_VERSION_1:
14739 bf_set(lpfc_mbx_wq_create_wqe_count, &wq_create->u.request_1,
14741 switch (wq->entry_size) {
14744 bf_set(lpfc_mbx_wq_create_wqe_size,
14745 &wq_create->u.request_1,
14746 LPFC_WQ_WQE_SIZE_64);
14749 if (!(phba->sli4_hba.pc_sli4_params.wqsize &
14750 LPFC_WQ_SZ128_SUPPORT)) {
14754 bf_set(lpfc_mbx_wq_create_wqe_size,
14755 &wq_create->u.request_1,
14756 LPFC_WQ_WQE_SIZE_128);
14759 bf_set(lpfc_mbx_wq_create_page_size,
14760 &wq_create->u.request_1,
14761 LPFC_WQ_PAGE_SIZE_4096);
14762 page = wq_create->u.request_1.page;
14769 list_for_each_entry(dmabuf, &wq->page_list, list) {
14770 memset(dmabuf->virt, 0, hw_page_size);
14771 page[dmabuf->buffer_tag].addr_lo = putPaddrLow(dmabuf->phys);
14772 page[dmabuf->buffer_tag].addr_hi = putPaddrHigh(dmabuf->phys);
14775 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
14776 bf_set(lpfc_mbx_wq_create_dua, &wq_create->u.request, 1);
14778 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14779 /* The IOCTL status is embedded in the mailbox subheader. */
14780 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14781 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14782 if (shdr_status || shdr_add_status || rc) {
14783 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14784 "2503 WQ_CREATE mailbox failed with "
14785 "status x%x add_status x%x, mbx status x%x\n",
14786 shdr_status, shdr_add_status, rc);
14790 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response);
14791 if (wq->queue_id == 0xFFFF) {
14795 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
14796 wq->db_format = bf_get(lpfc_mbx_wq_create_db_format,
14797 &wq_create->u.response);
14798 if ((wq->db_format != LPFC_DB_LIST_FORMAT) &&
14799 (wq->db_format != LPFC_DB_RING_FORMAT)) {
14800 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14801 "3265 WQ[%d] doorbell format not "
14802 "supported: x%x\n", wq->queue_id,
14807 pci_barset = bf_get(lpfc_mbx_wq_create_bar_set,
14808 &wq_create->u.response);
14809 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
14810 if (!bar_memmap_p) {
14811 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14812 "3263 WQ[%d] failed to memmap pci "
14813 "barset:x%x\n", wq->queue_id,
14818 db_offset = wq_create->u.response.doorbell_offset;
14819 if ((db_offset != LPFC_ULP0_WQ_DOORBELL) &&
14820 (db_offset != LPFC_ULP1_WQ_DOORBELL)) {
14821 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14822 "3252 WQ[%d] doorbell offset not "
14823 "supported: x%x\n", wq->queue_id,
14828 wq->db_regaddr = bar_memmap_p + db_offset;
14829 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14830 "3264 WQ[%d]: barset:x%x, offset:x%x, "
14831 "format:x%x\n", wq->queue_id, pci_barset,
14832 db_offset, wq->db_format);
14834 wq->db_format = LPFC_DB_LIST_FORMAT;
14835 wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
14837 wq->pring = kzalloc(sizeof(struct lpfc_sli_ring), GFP_KERNEL);
14838 if (wq->pring == NULL) {
14842 wq->type = LPFC_WQ;
14843 wq->assoc_qid = cq->queue_id;
14844 wq->subtype = subtype;
14845 wq->host_index = 0;
14847 wq->entry_repost = LPFC_RELEASE_NOTIFICATION_INTERVAL;
14849 /* link the wq onto the parent cq child list */
14850 list_add_tail(&wq->list, &cq->child_list);
14852 mempool_free(mbox, phba->mbox_mem_pool);
14857 * lpfc_rq_adjust_repost - Adjust entry_repost for an RQ
14858 * @phba: HBA structure that indicates port to create a queue on.
14859 * @rq: The queue structure to use for the receive queue.
14860 * @qno: The associated HBQ number
14863 * For SLI4 we need to adjust the RQ repost value based on
14864 * the number of buffers that are initially posted to the RQ.
14867 lpfc_rq_adjust_repost(struct lpfc_hba *phba, struct lpfc_queue *rq, int qno)
14871 /* sanity check on queue memory */
14874 cnt = lpfc_hbq_defs[qno]->entry_count;
14876 /* Recalc repost for RQs based on buffers initially posted */
14878 if (cnt < LPFC_QUEUE_MIN_REPOST)
14879 cnt = LPFC_QUEUE_MIN_REPOST;
14881 rq->entry_repost = cnt;
14885 * lpfc_rq_create - Create a Receive Queue on the HBA
14886 * @phba: HBA structure that indicates port to create a queue on.
14887 * @hrq: The queue structure to use to create the header receive queue.
14888 * @drq: The queue structure to use to create the data receive queue.
14889 * @cq: The completion queue to bind this work queue to.
14891 * This function creates a receive buffer queue pair , as detailed in @hrq and
14892 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
14895 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
14896 * struct is used to get the entry count that is necessary to determine the
14897 * number of pages to use for this queue. The @cq is used to indicate which
14898 * completion queue to bind received buffers that are posted to these queues to.
14899 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
14900 * receive queue pair. This function is asynchronous and will wait for the
14901 * mailbox command to finish before continuing.
14903 * On success this function will return a zero. If unable to allocate enough
14904 * memory this function will return -ENOMEM. If the queue create mailbox command
14905 * fails this function will return -ENXIO.
14908 lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
14909 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
14911 struct lpfc_mbx_rq_create *rq_create;
14912 struct lpfc_dmabuf *dmabuf;
14913 LPFC_MBOXQ_t *mbox;
14914 int rc, length, status = 0;
14915 uint32_t shdr_status, shdr_add_status;
14916 union lpfc_sli4_cfg_shdr *shdr;
14917 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
14918 void __iomem *bar_memmap_p;
14919 uint32_t db_offset;
14920 uint16_t pci_barset;
14922 /* sanity check on queue memory */
14923 if (!hrq || !drq || !cq)
14925 if (!phba->sli4_hba.pc_sli4_params.supported)
14926 hw_page_size = SLI4_PAGE_SIZE;
14928 if (hrq->entry_count != drq->entry_count)
14930 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14933 length = (sizeof(struct lpfc_mbx_rq_create) -
14934 sizeof(struct lpfc_sli4_cfg_mhdr));
14935 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14936 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
14937 length, LPFC_SLI4_MBX_EMBED);
14938 rq_create = &mbox->u.mqe.un.rq_create;
14939 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
14940 bf_set(lpfc_mbox_hdr_version, &shdr->request,
14941 phba->sli4_hba.pc_sli4_params.rqv);
14942 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
14943 bf_set(lpfc_rq_context_rqe_count_1,
14944 &rq_create->u.request.context,
14946 rq_create->u.request.context.buffer_size = LPFC_HDR_BUF_SIZE;
14947 bf_set(lpfc_rq_context_rqe_size,
14948 &rq_create->u.request.context,
14950 bf_set(lpfc_rq_context_page_size,
14951 &rq_create->u.request.context,
14952 LPFC_RQ_PAGE_SIZE_4096);
14954 switch (hrq->entry_count) {
14956 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14957 "2535 Unsupported RQ count. (%d)\n",
14959 if (hrq->entry_count < 512) {
14963 /* otherwise default to smallest count (drop through) */
14965 bf_set(lpfc_rq_context_rqe_count,
14966 &rq_create->u.request.context,
14967 LPFC_RQ_RING_SIZE_512);
14970 bf_set(lpfc_rq_context_rqe_count,
14971 &rq_create->u.request.context,
14972 LPFC_RQ_RING_SIZE_1024);
14975 bf_set(lpfc_rq_context_rqe_count,
14976 &rq_create->u.request.context,
14977 LPFC_RQ_RING_SIZE_2048);
14980 bf_set(lpfc_rq_context_rqe_count,
14981 &rq_create->u.request.context,
14982 LPFC_RQ_RING_SIZE_4096);
14985 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
14986 LPFC_HDR_BUF_SIZE);
14988 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
14990 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
14992 list_for_each_entry(dmabuf, &hrq->page_list, list) {
14993 memset(dmabuf->virt, 0, hw_page_size);
14994 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
14995 putPaddrLow(dmabuf->phys);
14996 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
14997 putPaddrHigh(dmabuf->phys);
14999 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
15000 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
15002 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15003 /* The IOCTL status is embedded in the mailbox subheader. */
15004 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15005 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15006 if (shdr_status || shdr_add_status || rc) {
15007 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15008 "2504 RQ_CREATE mailbox failed with "
15009 "status x%x add_status x%x, mbx status x%x\n",
15010 shdr_status, shdr_add_status, rc);
15014 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
15015 if (hrq->queue_id == 0xFFFF) {
15020 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
15021 hrq->db_format = bf_get(lpfc_mbx_rq_create_db_format,
15022 &rq_create->u.response);
15023 if ((hrq->db_format != LPFC_DB_LIST_FORMAT) &&
15024 (hrq->db_format != LPFC_DB_RING_FORMAT)) {
15025 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15026 "3262 RQ [%d] doorbell format not "
15027 "supported: x%x\n", hrq->queue_id,
15033 pci_barset = bf_get(lpfc_mbx_rq_create_bar_set,
15034 &rq_create->u.response);
15035 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
15036 if (!bar_memmap_p) {
15037 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15038 "3269 RQ[%d] failed to memmap pci "
15039 "barset:x%x\n", hrq->queue_id,
15045 db_offset = rq_create->u.response.doorbell_offset;
15046 if ((db_offset != LPFC_ULP0_RQ_DOORBELL) &&
15047 (db_offset != LPFC_ULP1_RQ_DOORBELL)) {
15048 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15049 "3270 RQ[%d] doorbell offset not "
15050 "supported: x%x\n", hrq->queue_id,
15055 hrq->db_regaddr = bar_memmap_p + db_offset;
15056 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15057 "3266 RQ[qid:%d]: barset:x%x, offset:x%x, "
15058 "format:x%x\n", hrq->queue_id, pci_barset,
15059 db_offset, hrq->db_format);
15061 hrq->db_format = LPFC_DB_RING_FORMAT;
15062 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
15064 hrq->type = LPFC_HRQ;
15065 hrq->assoc_qid = cq->queue_id;
15066 hrq->subtype = subtype;
15067 hrq->host_index = 0;
15068 hrq->hba_index = 0;
15070 /* now create the data queue */
15071 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15072 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
15073 length, LPFC_SLI4_MBX_EMBED);
15074 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15075 phba->sli4_hba.pc_sli4_params.rqv);
15076 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
15077 bf_set(lpfc_rq_context_rqe_count_1,
15078 &rq_create->u.request.context, hrq->entry_count);
15079 rq_create->u.request.context.buffer_size = LPFC_DATA_BUF_SIZE;
15080 bf_set(lpfc_rq_context_rqe_size, &rq_create->u.request.context,
15082 bf_set(lpfc_rq_context_page_size, &rq_create->u.request.context,
15083 (PAGE_SIZE/SLI4_PAGE_SIZE));
15085 switch (drq->entry_count) {
15087 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15088 "2536 Unsupported RQ count. (%d)\n",
15090 if (drq->entry_count < 512) {
15094 /* otherwise default to smallest count (drop through) */
15096 bf_set(lpfc_rq_context_rqe_count,
15097 &rq_create->u.request.context,
15098 LPFC_RQ_RING_SIZE_512);
15101 bf_set(lpfc_rq_context_rqe_count,
15102 &rq_create->u.request.context,
15103 LPFC_RQ_RING_SIZE_1024);
15106 bf_set(lpfc_rq_context_rqe_count,
15107 &rq_create->u.request.context,
15108 LPFC_RQ_RING_SIZE_2048);
15111 bf_set(lpfc_rq_context_rqe_count,
15112 &rq_create->u.request.context,
15113 LPFC_RQ_RING_SIZE_4096);
15116 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
15117 LPFC_DATA_BUF_SIZE);
15119 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
15121 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
15123 list_for_each_entry(dmabuf, &drq->page_list, list) {
15124 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
15125 putPaddrLow(dmabuf->phys);
15126 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
15127 putPaddrHigh(dmabuf->phys);
15129 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
15130 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
15131 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15132 /* The IOCTL status is embedded in the mailbox subheader. */
15133 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
15134 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15135 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15136 if (shdr_status || shdr_add_status || rc) {
15140 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
15141 if (drq->queue_id == 0xFFFF) {
15145 drq->type = LPFC_DRQ;
15146 drq->assoc_qid = cq->queue_id;
15147 drq->subtype = subtype;
15148 drq->host_index = 0;
15149 drq->hba_index = 0;
15151 /* link the header and data RQs onto the parent cq child list */
15152 list_add_tail(&hrq->list, &cq->child_list);
15153 list_add_tail(&drq->list, &cq->child_list);
15156 mempool_free(mbox, phba->mbox_mem_pool);
15161 * lpfc_mrq_create - Create MRQ Receive Queues on the HBA
15162 * @phba: HBA structure that indicates port to create a queue on.
15163 * @hrqp: The queue structure array to use to create the header receive queues.
15164 * @drqp: The queue structure array to use to create the data receive queues.
15165 * @cqp: The completion queue array to bind these receive queues to.
15167 * This function creates a receive buffer queue pair , as detailed in @hrq and
15168 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
15171 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
15172 * struct is used to get the entry count that is necessary to determine the
15173 * number of pages to use for this queue. The @cq is used to indicate which
15174 * completion queue to bind received buffers that are posted to these queues to.
15175 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
15176 * receive queue pair. This function is asynchronous and will wait for the
15177 * mailbox command to finish before continuing.
15179 * On success this function will return a zero. If unable to allocate enough
15180 * memory this function will return -ENOMEM. If the queue create mailbox command
15181 * fails this function will return -ENXIO.
15184 lpfc_mrq_create(struct lpfc_hba *phba, struct lpfc_queue **hrqp,
15185 struct lpfc_queue **drqp, struct lpfc_queue **cqp,
15188 struct lpfc_queue *hrq, *drq, *cq;
15189 struct lpfc_mbx_rq_create_v2 *rq_create;
15190 struct lpfc_dmabuf *dmabuf;
15191 LPFC_MBOXQ_t *mbox;
15192 int rc, length, alloclen, status = 0;
15193 int cnt, idx, numrq, page_idx = 0;
15194 uint32_t shdr_status, shdr_add_status;
15195 union lpfc_sli4_cfg_shdr *shdr;
15196 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15198 numrq = phba->cfg_nvmet_mrq;
15199 /* sanity check on array memory */
15200 if (!hrqp || !drqp || !cqp || !numrq)
15202 if (!phba->sli4_hba.pc_sli4_params.supported)
15203 hw_page_size = SLI4_PAGE_SIZE;
15205 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15209 length = sizeof(struct lpfc_mbx_rq_create_v2);
15210 length += ((2 * numrq * hrqp[0]->page_count) *
15211 sizeof(struct dma_address));
15213 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15214 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE, length,
15215 LPFC_SLI4_MBX_NEMBED);
15216 if (alloclen < length) {
15217 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15218 "3099 Allocated DMA memory size (%d) is "
15219 "less than the requested DMA memory size "
15220 "(%d)\n", alloclen, length);
15227 rq_create = mbox->sge_array->addr[0];
15228 shdr = (union lpfc_sli4_cfg_shdr *)&rq_create->cfg_shdr;
15230 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_Q_CREATE_VERSION_2);
15233 for (idx = 0; idx < numrq; idx++) {
15238 /* sanity check on queue memory */
15239 if (!hrq || !drq || !cq) {
15244 if (hrq->entry_count != drq->entry_count) {
15250 bf_set(lpfc_mbx_rq_create_num_pages,
15251 &rq_create->u.request,
15253 bf_set(lpfc_mbx_rq_create_rq_cnt,
15254 &rq_create->u.request, (numrq * 2));
15255 bf_set(lpfc_mbx_rq_create_dnb, &rq_create->u.request,
15257 bf_set(lpfc_rq_context_base_cq,
15258 &rq_create->u.request.context,
15260 bf_set(lpfc_rq_context_data_size,
15261 &rq_create->u.request.context,
15262 LPFC_DATA_BUF_SIZE);
15263 bf_set(lpfc_rq_context_hdr_size,
15264 &rq_create->u.request.context,
15265 LPFC_HDR_BUF_SIZE);
15266 bf_set(lpfc_rq_context_rqe_count_1,
15267 &rq_create->u.request.context,
15269 bf_set(lpfc_rq_context_rqe_size,
15270 &rq_create->u.request.context,
15272 bf_set(lpfc_rq_context_page_size,
15273 &rq_create->u.request.context,
15274 (PAGE_SIZE/SLI4_PAGE_SIZE));
15277 list_for_each_entry(dmabuf, &hrq->page_list, list) {
15278 memset(dmabuf->virt, 0, hw_page_size);
15279 cnt = page_idx + dmabuf->buffer_tag;
15280 rq_create->u.request.page[cnt].addr_lo =
15281 putPaddrLow(dmabuf->phys);
15282 rq_create->u.request.page[cnt].addr_hi =
15283 putPaddrHigh(dmabuf->phys);
15289 list_for_each_entry(dmabuf, &drq->page_list, list) {
15290 memset(dmabuf->virt, 0, hw_page_size);
15291 cnt = page_idx + dmabuf->buffer_tag;
15292 rq_create->u.request.page[cnt].addr_lo =
15293 putPaddrLow(dmabuf->phys);
15294 rq_create->u.request.page[cnt].addr_hi =
15295 putPaddrHigh(dmabuf->phys);
15300 hrq->db_format = LPFC_DB_RING_FORMAT;
15301 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
15302 hrq->type = LPFC_HRQ;
15303 hrq->assoc_qid = cq->queue_id;
15304 hrq->subtype = subtype;
15305 hrq->host_index = 0;
15306 hrq->hba_index = 0;
15308 drq->db_format = LPFC_DB_RING_FORMAT;
15309 drq->db_regaddr = phba->sli4_hba.RQDBregaddr;
15310 drq->type = LPFC_DRQ;
15311 drq->assoc_qid = cq->queue_id;
15312 drq->subtype = subtype;
15313 drq->host_index = 0;
15314 drq->hba_index = 0;
15316 list_add_tail(&hrq->list, &cq->child_list);
15317 list_add_tail(&drq->list, &cq->child_list);
15320 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15321 /* The IOCTL status is embedded in the mailbox subheader. */
15322 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15323 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15324 if (shdr_status || shdr_add_status || rc) {
15325 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15326 "3120 RQ_CREATE mailbox failed with "
15327 "status x%x add_status x%x, mbx status x%x\n",
15328 shdr_status, shdr_add_status, rc);
15332 rc = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
15333 if (rc == 0xFFFF) {
15338 /* Initialize all RQs with associated queue id */
15339 for (idx = 0; idx < numrq; idx++) {
15341 hrq->queue_id = rc + (2 * idx);
15343 drq->queue_id = rc + (2 * idx) + 1;
15347 lpfc_sli4_mbox_cmd_free(phba, mbox);
15352 * lpfc_eq_destroy - Destroy an event Queue on the HBA
15353 * @eq: The queue structure associated with the queue to destroy.
15355 * This function destroys a queue, as detailed in @eq by sending an mailbox
15356 * command, specific to the type of queue, to the HBA.
15358 * The @eq struct is used to get the queue ID of the queue to destroy.
15360 * On success this function will return a zero. If the queue destroy mailbox
15361 * command fails this function will return -ENXIO.
15364 lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
15366 LPFC_MBOXQ_t *mbox;
15367 int rc, length, status = 0;
15368 uint32_t shdr_status, shdr_add_status;
15369 union lpfc_sli4_cfg_shdr *shdr;
15371 /* sanity check on queue memory */
15374 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
15377 length = (sizeof(struct lpfc_mbx_eq_destroy) -
15378 sizeof(struct lpfc_sli4_cfg_mhdr));
15379 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
15380 LPFC_MBOX_OPCODE_EQ_DESTROY,
15381 length, LPFC_SLI4_MBX_EMBED);
15382 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
15384 mbox->vport = eq->phba->pport;
15385 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15387 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
15388 /* The IOCTL status is embedded in the mailbox subheader. */
15389 shdr = (union lpfc_sli4_cfg_shdr *)
15390 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
15391 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15392 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15393 if (shdr_status || shdr_add_status || rc) {
15394 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15395 "2505 EQ_DESTROY mailbox failed with "
15396 "status x%x add_status x%x, mbx status x%x\n",
15397 shdr_status, shdr_add_status, rc);
15401 /* Remove eq from any list */
15402 list_del_init(&eq->list);
15403 mempool_free(mbox, eq->phba->mbox_mem_pool);
15408 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
15409 * @cq: The queue structure associated with the queue to destroy.
15411 * This function destroys a queue, as detailed in @cq by sending an mailbox
15412 * command, specific to the type of queue, to the HBA.
15414 * The @cq struct is used to get the queue ID of the queue to destroy.
15416 * On success this function will return a zero. If the queue destroy mailbox
15417 * command fails this function will return -ENXIO.
15420 lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
15422 LPFC_MBOXQ_t *mbox;
15423 int rc, length, status = 0;
15424 uint32_t shdr_status, shdr_add_status;
15425 union lpfc_sli4_cfg_shdr *shdr;
15427 /* sanity check on queue memory */
15430 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
15433 length = (sizeof(struct lpfc_mbx_cq_destroy) -
15434 sizeof(struct lpfc_sli4_cfg_mhdr));
15435 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
15436 LPFC_MBOX_OPCODE_CQ_DESTROY,
15437 length, LPFC_SLI4_MBX_EMBED);
15438 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
15440 mbox->vport = cq->phba->pport;
15441 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15442 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
15443 /* The IOCTL status is embedded in the mailbox subheader. */
15444 shdr = (union lpfc_sli4_cfg_shdr *)
15445 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
15446 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15447 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15448 if (shdr_status || shdr_add_status || rc) {
15449 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15450 "2506 CQ_DESTROY mailbox failed with "
15451 "status x%x add_status x%x, mbx status x%x\n",
15452 shdr_status, shdr_add_status, rc);
15455 /* Remove cq from any list */
15456 list_del_init(&cq->list);
15457 mempool_free(mbox, cq->phba->mbox_mem_pool);
15462 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
15463 * @qm: The queue structure associated with the queue to destroy.
15465 * This function destroys a queue, as detailed in @mq by sending an mailbox
15466 * command, specific to the type of queue, to the HBA.
15468 * The @mq struct is used to get the queue ID of the queue to destroy.
15470 * On success this function will return a zero. If the queue destroy mailbox
15471 * command fails this function will return -ENXIO.
15474 lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
15476 LPFC_MBOXQ_t *mbox;
15477 int rc, length, status = 0;
15478 uint32_t shdr_status, shdr_add_status;
15479 union lpfc_sli4_cfg_shdr *shdr;
15481 /* sanity check on queue memory */
15484 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
15487 length = (sizeof(struct lpfc_mbx_mq_destroy) -
15488 sizeof(struct lpfc_sli4_cfg_mhdr));
15489 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
15490 LPFC_MBOX_OPCODE_MQ_DESTROY,
15491 length, LPFC_SLI4_MBX_EMBED);
15492 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
15494 mbox->vport = mq->phba->pport;
15495 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15496 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
15497 /* The IOCTL status is embedded in the mailbox subheader. */
15498 shdr = (union lpfc_sli4_cfg_shdr *)
15499 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
15500 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15501 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15502 if (shdr_status || shdr_add_status || rc) {
15503 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15504 "2507 MQ_DESTROY mailbox failed with "
15505 "status x%x add_status x%x, mbx status x%x\n",
15506 shdr_status, shdr_add_status, rc);
15509 /* Remove mq from any list */
15510 list_del_init(&mq->list);
15511 mempool_free(mbox, mq->phba->mbox_mem_pool);
15516 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
15517 * @wq: The queue structure associated with the queue to destroy.
15519 * This function destroys a queue, as detailed in @wq by sending an mailbox
15520 * command, specific to the type of queue, to the HBA.
15522 * The @wq struct is used to get the queue ID of the queue to destroy.
15524 * On success this function will return a zero. If the queue destroy mailbox
15525 * command fails this function will return -ENXIO.
15528 lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
15530 LPFC_MBOXQ_t *mbox;
15531 int rc, length, status = 0;
15532 uint32_t shdr_status, shdr_add_status;
15533 union lpfc_sli4_cfg_shdr *shdr;
15535 /* sanity check on queue memory */
15538 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
15541 length = (sizeof(struct lpfc_mbx_wq_destroy) -
15542 sizeof(struct lpfc_sli4_cfg_mhdr));
15543 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15544 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
15545 length, LPFC_SLI4_MBX_EMBED);
15546 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
15548 mbox->vport = wq->phba->pport;
15549 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15550 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
15551 shdr = (union lpfc_sli4_cfg_shdr *)
15552 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
15553 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15554 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15555 if (shdr_status || shdr_add_status || rc) {
15556 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15557 "2508 WQ_DESTROY mailbox failed with "
15558 "status x%x add_status x%x, mbx status x%x\n",
15559 shdr_status, shdr_add_status, rc);
15562 /* Remove wq from any list */
15563 list_del_init(&wq->list);
15564 mempool_free(mbox, wq->phba->mbox_mem_pool);
15569 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
15570 * @rq: The queue structure associated with the queue to destroy.
15572 * This function destroys a queue, as detailed in @rq by sending an mailbox
15573 * command, specific to the type of queue, to the HBA.
15575 * The @rq struct is used to get the queue ID of the queue to destroy.
15577 * On success this function will return a zero. If the queue destroy mailbox
15578 * command fails this function will return -ENXIO.
15581 lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
15582 struct lpfc_queue *drq)
15584 LPFC_MBOXQ_t *mbox;
15585 int rc, length, status = 0;
15586 uint32_t shdr_status, shdr_add_status;
15587 union lpfc_sli4_cfg_shdr *shdr;
15589 /* sanity check on queue memory */
15592 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
15595 length = (sizeof(struct lpfc_mbx_rq_destroy) -
15596 sizeof(struct lpfc_sli4_cfg_mhdr));
15597 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15598 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
15599 length, LPFC_SLI4_MBX_EMBED);
15600 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
15602 mbox->vport = hrq->phba->pport;
15603 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15604 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
15605 /* The IOCTL status is embedded in the mailbox subheader. */
15606 shdr = (union lpfc_sli4_cfg_shdr *)
15607 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
15608 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15609 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15610 if (shdr_status || shdr_add_status || rc) {
15611 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15612 "2509 RQ_DESTROY mailbox failed with "
15613 "status x%x add_status x%x, mbx status x%x\n",
15614 shdr_status, shdr_add_status, rc);
15615 if (rc != MBX_TIMEOUT)
15616 mempool_free(mbox, hrq->phba->mbox_mem_pool);
15619 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
15621 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
15622 shdr = (union lpfc_sli4_cfg_shdr *)
15623 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
15624 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15625 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15626 if (shdr_status || shdr_add_status || rc) {
15627 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15628 "2510 RQ_DESTROY mailbox failed with "
15629 "status x%x add_status x%x, mbx status x%x\n",
15630 shdr_status, shdr_add_status, rc);
15633 list_del_init(&hrq->list);
15634 list_del_init(&drq->list);
15635 mempool_free(mbox, hrq->phba->mbox_mem_pool);
15640 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
15641 * @phba: The virtual port for which this call being executed.
15642 * @pdma_phys_addr0: Physical address of the 1st SGL page.
15643 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
15644 * @xritag: the xritag that ties this io to the SGL pages.
15646 * This routine will post the sgl pages for the IO that has the xritag
15647 * that is in the iocbq structure. The xritag is assigned during iocbq
15648 * creation and persists for as long as the driver is loaded.
15649 * if the caller has fewer than 256 scatter gather segments to map then
15650 * pdma_phys_addr1 should be 0.
15651 * If the caller needs to map more than 256 scatter gather segment then
15652 * pdma_phys_addr1 should be a valid physical address.
15653 * physical address for SGLs must be 64 byte aligned.
15654 * If you are going to map 2 SGL's then the first one must have 256 entries
15655 * the second sgl can have between 1 and 256 entries.
15659 * -ENXIO, -ENOMEM - Failure
15662 lpfc_sli4_post_sgl(struct lpfc_hba *phba,
15663 dma_addr_t pdma_phys_addr0,
15664 dma_addr_t pdma_phys_addr1,
15667 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
15668 LPFC_MBOXQ_t *mbox;
15670 uint32_t shdr_status, shdr_add_status;
15672 union lpfc_sli4_cfg_shdr *shdr;
15674 if (xritag == NO_XRI) {
15675 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15676 "0364 Invalid param:\n");
15680 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15684 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15685 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
15686 sizeof(struct lpfc_mbx_post_sgl_pages) -
15687 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
15689 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
15690 &mbox->u.mqe.un.post_sgl_pages;
15691 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
15692 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
15694 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
15695 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
15696 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
15697 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
15699 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
15700 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
15701 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
15702 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
15703 if (!phba->sli4_hba.intr_enable)
15704 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15706 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
15707 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
15709 /* The IOCTL status is embedded in the mailbox subheader. */
15710 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
15711 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15712 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15713 if (rc != MBX_TIMEOUT)
15714 mempool_free(mbox, phba->mbox_mem_pool);
15715 if (shdr_status || shdr_add_status || rc) {
15716 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15717 "2511 POST_SGL mailbox failed with "
15718 "status x%x add_status x%x, mbx status x%x\n",
15719 shdr_status, shdr_add_status, rc);
15725 * lpfc_sli4_alloc_xri - Get an available rpi in the device's range
15726 * @phba: pointer to lpfc hba data structure.
15728 * This routine is invoked to post rpi header templates to the
15729 * HBA consistent with the SLI-4 interface spec. This routine
15730 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
15731 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
15734 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
15735 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
15738 lpfc_sli4_alloc_xri(struct lpfc_hba *phba)
15743 * Fetch the next logical xri. Because this index is logical,
15744 * the driver starts at 0 each time.
15746 spin_lock_irq(&phba->hbalock);
15747 xri = find_next_zero_bit(phba->sli4_hba.xri_bmask,
15748 phba->sli4_hba.max_cfg_param.max_xri, 0);
15749 if (xri >= phba->sli4_hba.max_cfg_param.max_xri) {
15750 spin_unlock_irq(&phba->hbalock);
15753 set_bit(xri, phba->sli4_hba.xri_bmask);
15754 phba->sli4_hba.max_cfg_param.xri_used++;
15756 spin_unlock_irq(&phba->hbalock);
15761 * lpfc_sli4_free_xri - Release an xri for reuse.
15762 * @phba: pointer to lpfc hba data structure.
15764 * This routine is invoked to release an xri to the pool of
15765 * available rpis maintained by the driver.
15768 __lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
15770 if (test_and_clear_bit(xri, phba->sli4_hba.xri_bmask)) {
15771 phba->sli4_hba.max_cfg_param.xri_used--;
15776 * lpfc_sli4_free_xri - Release an xri for reuse.
15777 * @phba: pointer to lpfc hba data structure.
15779 * This routine is invoked to release an xri to the pool of
15780 * available rpis maintained by the driver.
15783 lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
15785 spin_lock_irq(&phba->hbalock);
15786 __lpfc_sli4_free_xri(phba, xri);
15787 spin_unlock_irq(&phba->hbalock);
15791 * lpfc_sli4_next_xritag - Get an xritag for the io
15792 * @phba: Pointer to HBA context object.
15794 * This function gets an xritag for the iocb. If there is no unused xritag
15795 * it will return 0xffff.
15796 * The function returns the allocated xritag if successful, else returns zero.
15797 * Zero is not a valid xritag.
15798 * The caller is not required to hold any lock.
15801 lpfc_sli4_next_xritag(struct lpfc_hba *phba)
15803 uint16_t xri_index;
15805 xri_index = lpfc_sli4_alloc_xri(phba);
15806 if (xri_index == NO_XRI)
15807 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
15808 "2004 Failed to allocate XRI.last XRITAG is %d"
15809 " Max XRI is %d, Used XRI is %d\n",
15811 phba->sli4_hba.max_cfg_param.max_xri,
15812 phba->sli4_hba.max_cfg_param.xri_used);
15817 * lpfc_sli4_post_sgl_list - post a block of ELS sgls to the port.
15818 * @phba: pointer to lpfc hba data structure.
15819 * @post_sgl_list: pointer to els sgl entry list.
15820 * @count: number of els sgl entries on the list.
15822 * This routine is invoked to post a block of driver's sgl pages to the
15823 * HBA using non-embedded mailbox command. No Lock is held. This routine
15824 * is only called when the driver is loading and after all IO has been
15828 lpfc_sli4_post_sgl_list(struct lpfc_hba *phba,
15829 struct list_head *post_sgl_list,
15832 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
15833 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
15834 struct sgl_page_pairs *sgl_pg_pairs;
15836 LPFC_MBOXQ_t *mbox;
15837 uint32_t reqlen, alloclen, pg_pairs;
15839 uint16_t xritag_start = 0;
15841 uint32_t shdr_status, shdr_add_status;
15842 union lpfc_sli4_cfg_shdr *shdr;
15844 reqlen = post_cnt * sizeof(struct sgl_page_pairs) +
15845 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
15846 if (reqlen > SLI4_PAGE_SIZE) {
15847 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15848 "2559 Block sgl registration required DMA "
15849 "size (%d) great than a page\n", reqlen);
15853 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15857 /* Allocate DMA memory and set up the non-embedded mailbox command */
15858 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15859 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
15860 LPFC_SLI4_MBX_NEMBED);
15862 if (alloclen < reqlen) {
15863 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15864 "0285 Allocated DMA memory size (%d) is "
15865 "less than the requested DMA memory "
15866 "size (%d)\n", alloclen, reqlen);
15867 lpfc_sli4_mbox_cmd_free(phba, mbox);
15870 /* Set up the SGL pages in the non-embedded DMA pages */
15871 viraddr = mbox->sge_array->addr[0];
15872 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
15873 sgl_pg_pairs = &sgl->sgl_pg_pairs;
15876 list_for_each_entry_safe(sglq_entry, sglq_next, post_sgl_list, list) {
15877 /* Set up the sge entry */
15878 sgl_pg_pairs->sgl_pg0_addr_lo =
15879 cpu_to_le32(putPaddrLow(sglq_entry->phys));
15880 sgl_pg_pairs->sgl_pg0_addr_hi =
15881 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
15882 sgl_pg_pairs->sgl_pg1_addr_lo =
15883 cpu_to_le32(putPaddrLow(0));
15884 sgl_pg_pairs->sgl_pg1_addr_hi =
15885 cpu_to_le32(putPaddrHigh(0));
15887 /* Keep the first xritag on the list */
15889 xritag_start = sglq_entry->sli4_xritag;
15894 /* Complete initialization and perform endian conversion. */
15895 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
15896 bf_set(lpfc_post_sgl_pages_xricnt, sgl, post_cnt);
15897 sgl->word0 = cpu_to_le32(sgl->word0);
15899 if (!phba->sli4_hba.intr_enable)
15900 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15902 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
15903 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
15905 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
15906 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15907 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15908 if (rc != MBX_TIMEOUT)
15909 lpfc_sli4_mbox_cmd_free(phba, mbox);
15910 if (shdr_status || shdr_add_status || rc) {
15911 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15912 "2513 POST_SGL_BLOCK mailbox command failed "
15913 "status x%x add_status x%x mbx status x%x\n",
15914 shdr_status, shdr_add_status, rc);
15921 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
15922 * @phba: pointer to lpfc hba data structure.
15923 * @sblist: pointer to scsi buffer list.
15924 * @count: number of scsi buffers on the list.
15926 * This routine is invoked to post a block of @count scsi sgl pages from a
15927 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
15932 lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba,
15933 struct list_head *sblist,
15936 struct lpfc_scsi_buf *psb;
15937 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
15938 struct sgl_page_pairs *sgl_pg_pairs;
15940 LPFC_MBOXQ_t *mbox;
15941 uint32_t reqlen, alloclen, pg_pairs;
15943 uint16_t xritag_start = 0;
15945 uint32_t shdr_status, shdr_add_status;
15946 dma_addr_t pdma_phys_bpl1;
15947 union lpfc_sli4_cfg_shdr *shdr;
15949 /* Calculate the requested length of the dma memory */
15950 reqlen = count * sizeof(struct sgl_page_pairs) +
15951 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
15952 if (reqlen > SLI4_PAGE_SIZE) {
15953 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
15954 "0217 Block sgl registration required DMA "
15955 "size (%d) great than a page\n", reqlen);
15958 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15960 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15961 "0283 Failed to allocate mbox cmd memory\n");
15965 /* Allocate DMA memory and set up the non-embedded mailbox command */
15966 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15967 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
15968 LPFC_SLI4_MBX_NEMBED);
15970 if (alloclen < reqlen) {
15971 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15972 "2561 Allocated DMA memory size (%d) is "
15973 "less than the requested DMA memory "
15974 "size (%d)\n", alloclen, reqlen);
15975 lpfc_sli4_mbox_cmd_free(phba, mbox);
15979 /* Get the first SGE entry from the non-embedded DMA memory */
15980 viraddr = mbox->sge_array->addr[0];
15982 /* Set up the SGL pages in the non-embedded DMA pages */
15983 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
15984 sgl_pg_pairs = &sgl->sgl_pg_pairs;
15987 list_for_each_entry(psb, sblist, list) {
15988 /* Set up the sge entry */
15989 sgl_pg_pairs->sgl_pg0_addr_lo =
15990 cpu_to_le32(putPaddrLow(psb->dma_phys_bpl));
15991 sgl_pg_pairs->sgl_pg0_addr_hi =
15992 cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl));
15993 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
15994 pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE;
15996 pdma_phys_bpl1 = 0;
15997 sgl_pg_pairs->sgl_pg1_addr_lo =
15998 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
15999 sgl_pg_pairs->sgl_pg1_addr_hi =
16000 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
16001 /* Keep the first xritag on the list */
16003 xritag_start = psb->cur_iocbq.sli4_xritag;
16007 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
16008 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
16009 /* Perform endian conversion if necessary */
16010 sgl->word0 = cpu_to_le32(sgl->word0);
16012 if (!phba->sli4_hba.intr_enable)
16013 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16015 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
16016 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16018 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
16019 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16020 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16021 if (rc != MBX_TIMEOUT)
16022 lpfc_sli4_mbox_cmd_free(phba, mbox);
16023 if (shdr_status || shdr_add_status || rc) {
16024 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16025 "2564 POST_SGL_BLOCK mailbox command failed "
16026 "status x%x add_status x%x mbx status x%x\n",
16027 shdr_status, shdr_add_status, rc);
16033 static char *lpfc_rctl_names[] = FC_RCTL_NAMES_INIT;
16034 static char *lpfc_type_names[] = FC_TYPE_NAMES_INIT;
16037 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
16038 * @phba: pointer to lpfc_hba struct that the frame was received on
16039 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
16041 * This function checks the fields in the @fc_hdr to see if the FC frame is a
16042 * valid type of frame that the LPFC driver will handle. This function will
16043 * return a zero if the frame is a valid frame or a non zero value when the
16044 * frame does not pass the check.
16047 lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
16049 /* make rctl_names static to save stack space */
16050 struct fc_vft_header *fc_vft_hdr;
16051 uint32_t *header = (uint32_t *) fc_hdr;
16053 switch (fc_hdr->fh_r_ctl) {
16054 case FC_RCTL_DD_UNCAT: /* uncategorized information */
16055 case FC_RCTL_DD_SOL_DATA: /* solicited data */
16056 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
16057 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
16058 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
16059 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
16060 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
16061 case FC_RCTL_DD_CMD_STATUS: /* command status */
16062 case FC_RCTL_ELS_REQ: /* extended link services request */
16063 case FC_RCTL_ELS_REP: /* extended link services reply */
16064 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
16065 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
16066 case FC_RCTL_BA_NOP: /* basic link service NOP */
16067 case FC_RCTL_BA_ABTS: /* basic link service abort */
16068 case FC_RCTL_BA_RMC: /* remove connection */
16069 case FC_RCTL_BA_ACC: /* basic accept */
16070 case FC_RCTL_BA_RJT: /* basic reject */
16071 case FC_RCTL_BA_PRMT:
16072 case FC_RCTL_ACK_1: /* acknowledge_1 */
16073 case FC_RCTL_ACK_0: /* acknowledge_0 */
16074 case FC_RCTL_P_RJT: /* port reject */
16075 case FC_RCTL_F_RJT: /* fabric reject */
16076 case FC_RCTL_P_BSY: /* port busy */
16077 case FC_RCTL_F_BSY: /* fabric busy to data frame */
16078 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
16079 case FC_RCTL_LCR: /* link credit reset */
16080 case FC_RCTL_END: /* end */
16082 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
16083 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
16084 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
16085 return lpfc_fc_frame_check(phba, fc_hdr);
16089 switch (fc_hdr->fh_type) {
16102 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
16103 "2538 Received frame rctl:%s (x%x), type:%s (x%x), "
16104 "frame Data:%08x %08x %08x %08x %08x %08x %08x\n",
16105 lpfc_rctl_names[fc_hdr->fh_r_ctl], fc_hdr->fh_r_ctl,
16106 lpfc_type_names[fc_hdr->fh_type], fc_hdr->fh_type,
16107 be32_to_cpu(header[0]), be32_to_cpu(header[1]),
16108 be32_to_cpu(header[2]), be32_to_cpu(header[3]),
16109 be32_to_cpu(header[4]), be32_to_cpu(header[5]),
16110 be32_to_cpu(header[6]));
16113 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
16114 "2539 Dropped frame rctl:%s type:%s\n",
16115 lpfc_rctl_names[fc_hdr->fh_r_ctl],
16116 lpfc_type_names[fc_hdr->fh_type]);
16121 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
16122 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
16124 * This function processes the FC header to retrieve the VFI from the VF
16125 * header, if one exists. This function will return the VFI if one exists
16126 * or 0 if no VSAN Header exists.
16129 lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
16131 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
16133 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
16135 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
16139 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
16140 * @phba: Pointer to the HBA structure to search for the vport on
16141 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
16142 * @fcfi: The FC Fabric ID that the frame came from
16144 * This function searches the @phba for a vport that matches the content of the
16145 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
16146 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
16147 * returns the matching vport pointer or NULL if unable to match frame to a
16150 static struct lpfc_vport *
16151 lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
16152 uint16_t fcfi, uint32_t did)
16154 struct lpfc_vport **vports;
16155 struct lpfc_vport *vport = NULL;
16158 if (did == Fabric_DID)
16159 return phba->pport;
16160 if ((phba->pport->fc_flag & FC_PT2PT) &&
16161 !(phba->link_state == LPFC_HBA_READY))
16162 return phba->pport;
16164 vports = lpfc_create_vport_work_array(phba);
16165 if (vports != NULL) {
16166 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
16167 if (phba->fcf.fcfi == fcfi &&
16168 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
16169 vports[i]->fc_myDID == did) {
16175 lpfc_destroy_vport_work_array(phba, vports);
16180 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
16181 * @vport: The vport to work on.
16183 * This function updates the receive sequence time stamp for this vport. The
16184 * receive sequence time stamp indicates the time that the last frame of the
16185 * the sequence that has been idle for the longest amount of time was received.
16186 * the driver uses this time stamp to indicate if any received sequences have
16190 lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
16192 struct lpfc_dmabuf *h_buf;
16193 struct hbq_dmabuf *dmabuf = NULL;
16195 /* get the oldest sequence on the rcv list */
16196 h_buf = list_get_first(&vport->rcv_buffer_list,
16197 struct lpfc_dmabuf, list);
16200 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
16201 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
16205 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
16206 * @vport: The vport that the received sequences were sent to.
16208 * This function cleans up all outstanding received sequences. This is called
16209 * by the driver when a link event or user action invalidates all the received
16213 lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
16215 struct lpfc_dmabuf *h_buf, *hnext;
16216 struct lpfc_dmabuf *d_buf, *dnext;
16217 struct hbq_dmabuf *dmabuf = NULL;
16219 /* start with the oldest sequence on the rcv list */
16220 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
16221 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
16222 list_del_init(&dmabuf->hbuf.list);
16223 list_for_each_entry_safe(d_buf, dnext,
16224 &dmabuf->dbuf.list, list) {
16225 list_del_init(&d_buf->list);
16226 lpfc_in_buf_free(vport->phba, d_buf);
16228 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
16233 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
16234 * @vport: The vport that the received sequences were sent to.
16236 * This function determines whether any received sequences have timed out by
16237 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
16238 * indicates that there is at least one timed out sequence this routine will
16239 * go through the received sequences one at a time from most inactive to most
16240 * active to determine which ones need to be cleaned up. Once it has determined
16241 * that a sequence needs to be cleaned up it will simply free up the resources
16242 * without sending an abort.
16245 lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
16247 struct lpfc_dmabuf *h_buf, *hnext;
16248 struct lpfc_dmabuf *d_buf, *dnext;
16249 struct hbq_dmabuf *dmabuf = NULL;
16250 unsigned long timeout;
16251 int abort_count = 0;
16253 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
16254 vport->rcv_buffer_time_stamp);
16255 if (list_empty(&vport->rcv_buffer_list) ||
16256 time_before(jiffies, timeout))
16258 /* start with the oldest sequence on the rcv list */
16259 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
16260 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
16261 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
16262 dmabuf->time_stamp);
16263 if (time_before(jiffies, timeout))
16266 list_del_init(&dmabuf->hbuf.list);
16267 list_for_each_entry_safe(d_buf, dnext,
16268 &dmabuf->dbuf.list, list) {
16269 list_del_init(&d_buf->list);
16270 lpfc_in_buf_free(vport->phba, d_buf);
16272 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
16275 lpfc_update_rcv_time_stamp(vport);
16279 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
16280 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
16282 * This function searches through the existing incomplete sequences that have
16283 * been sent to this @vport. If the frame matches one of the incomplete
16284 * sequences then the dbuf in the @dmabuf is added to the list of frames that
16285 * make up that sequence. If no sequence is found that matches this frame then
16286 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
16287 * This function returns a pointer to the first dmabuf in the sequence list that
16288 * the frame was linked to.
16290 static struct hbq_dmabuf *
16291 lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
16293 struct fc_frame_header *new_hdr;
16294 struct fc_frame_header *temp_hdr;
16295 struct lpfc_dmabuf *d_buf;
16296 struct lpfc_dmabuf *h_buf;
16297 struct hbq_dmabuf *seq_dmabuf = NULL;
16298 struct hbq_dmabuf *temp_dmabuf = NULL;
16301 INIT_LIST_HEAD(&dmabuf->dbuf.list);
16302 dmabuf->time_stamp = jiffies;
16303 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
16305 /* Use the hdr_buf to find the sequence that this frame belongs to */
16306 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
16307 temp_hdr = (struct fc_frame_header *)h_buf->virt;
16308 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
16309 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
16310 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
16312 /* found a pending sequence that matches this frame */
16313 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
16318 * This indicates first frame received for this sequence.
16319 * Queue the buffer on the vport's rcv_buffer_list.
16321 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
16322 lpfc_update_rcv_time_stamp(vport);
16325 temp_hdr = seq_dmabuf->hbuf.virt;
16326 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
16327 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
16328 list_del_init(&seq_dmabuf->hbuf.list);
16329 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
16330 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
16331 lpfc_update_rcv_time_stamp(vport);
16334 /* move this sequence to the tail to indicate a young sequence */
16335 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
16336 seq_dmabuf->time_stamp = jiffies;
16337 lpfc_update_rcv_time_stamp(vport);
16338 if (list_empty(&seq_dmabuf->dbuf.list)) {
16339 temp_hdr = dmabuf->hbuf.virt;
16340 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
16343 /* find the correct place in the sequence to insert this frame */
16344 d_buf = list_entry(seq_dmabuf->dbuf.list.prev, typeof(*d_buf), list);
16346 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
16347 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
16349 * If the frame's sequence count is greater than the frame on
16350 * the list then insert the frame right after this frame
16352 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
16353 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
16354 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
16359 if (&d_buf->list == &seq_dmabuf->dbuf.list)
16361 d_buf = list_entry(d_buf->list.prev, typeof(*d_buf), list);
16370 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
16371 * @vport: pointer to a vitural port
16372 * @dmabuf: pointer to a dmabuf that describes the FC sequence
16374 * This function tries to abort from the partially assembed sequence, described
16375 * by the information from basic abbort @dmabuf. It checks to see whether such
16376 * partially assembled sequence held by the driver. If so, it shall free up all
16377 * the frames from the partially assembled sequence.
16380 * true -- if there is matching partially assembled sequence present and all
16381 * the frames freed with the sequence;
16382 * false -- if there is no matching partially assembled sequence present so
16383 * nothing got aborted in the lower layer driver
16386 lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
16387 struct hbq_dmabuf *dmabuf)
16389 struct fc_frame_header *new_hdr;
16390 struct fc_frame_header *temp_hdr;
16391 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
16392 struct hbq_dmabuf *seq_dmabuf = NULL;
16394 /* Use the hdr_buf to find the sequence that matches this frame */
16395 INIT_LIST_HEAD(&dmabuf->dbuf.list);
16396 INIT_LIST_HEAD(&dmabuf->hbuf.list);
16397 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
16398 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
16399 temp_hdr = (struct fc_frame_header *)h_buf->virt;
16400 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
16401 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
16402 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
16404 /* found a pending sequence that matches this frame */
16405 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
16409 /* Free up all the frames from the partially assembled sequence */
16411 list_for_each_entry_safe(d_buf, n_buf,
16412 &seq_dmabuf->dbuf.list, list) {
16413 list_del_init(&d_buf->list);
16414 lpfc_in_buf_free(vport->phba, d_buf);
16422 * lpfc_sli4_abort_ulp_seq - Abort assembled unsol sequence from ulp
16423 * @vport: pointer to a vitural port
16424 * @dmabuf: pointer to a dmabuf that describes the FC sequence
16426 * This function tries to abort from the assembed sequence from upper level
16427 * protocol, described by the information from basic abbort @dmabuf. It
16428 * checks to see whether such pending context exists at upper level protocol.
16429 * If so, it shall clean up the pending context.
16432 * true -- if there is matching pending context of the sequence cleaned
16434 * false -- if there is no matching pending context of the sequence present
16438 lpfc_sli4_abort_ulp_seq(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
16440 struct lpfc_hba *phba = vport->phba;
16443 /* Accepting abort at ulp with SLI4 only */
16444 if (phba->sli_rev < LPFC_SLI_REV4)
16447 /* Register all caring upper level protocols to attend abort */
16448 handled = lpfc_ct_handle_unsol_abort(phba, dmabuf);
16456 * lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler
16457 * @phba: Pointer to HBA context object.
16458 * @cmd_iocbq: pointer to the command iocbq structure.
16459 * @rsp_iocbq: pointer to the response iocbq structure.
16461 * This function handles the sequence abort response iocb command complete
16462 * event. It properly releases the memory allocated to the sequence abort
16466 lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba *phba,
16467 struct lpfc_iocbq *cmd_iocbq,
16468 struct lpfc_iocbq *rsp_iocbq)
16470 struct lpfc_nodelist *ndlp;
16473 ndlp = (struct lpfc_nodelist *)cmd_iocbq->context1;
16474 lpfc_nlp_put(ndlp);
16475 lpfc_nlp_not_used(ndlp);
16476 lpfc_sli_release_iocbq(phba, cmd_iocbq);
16479 /* Failure means BLS ABORT RSP did not get delivered to remote node*/
16480 if (rsp_iocbq && rsp_iocbq->iocb.ulpStatus)
16481 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16482 "3154 BLS ABORT RSP failed, data: x%x/x%x\n",
16483 rsp_iocbq->iocb.ulpStatus,
16484 rsp_iocbq->iocb.un.ulpWord[4]);
16488 * lpfc_sli4_xri_inrange - check xri is in range of xris owned by driver.
16489 * @phba: Pointer to HBA context object.
16490 * @xri: xri id in transaction.
16492 * This function validates the xri maps to the known range of XRIs allocated an
16493 * used by the driver.
16496 lpfc_sli4_xri_inrange(struct lpfc_hba *phba,
16501 for (i = 0; i < phba->sli4_hba.max_cfg_param.max_xri; i++) {
16502 if (xri == phba->sli4_hba.xri_ids[i])
16509 * lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort
16510 * @phba: Pointer to HBA context object.
16511 * @fc_hdr: pointer to a FC frame header.
16513 * This function sends a basic response to a previous unsol sequence abort
16514 * event after aborting the sequence handling.
16517 lpfc_sli4_seq_abort_rsp(struct lpfc_vport *vport,
16518 struct fc_frame_header *fc_hdr, bool aborted)
16520 struct lpfc_hba *phba = vport->phba;
16521 struct lpfc_iocbq *ctiocb = NULL;
16522 struct lpfc_nodelist *ndlp;
16523 uint16_t oxid, rxid, xri, lxri;
16524 uint32_t sid, fctl;
16528 if (!lpfc_is_link_up(phba))
16531 sid = sli4_sid_from_fc_hdr(fc_hdr);
16532 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
16533 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
16535 ndlp = lpfc_findnode_did(vport, sid);
16537 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
16539 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
16540 "1268 Failed to allocate ndlp for "
16541 "oxid:x%x SID:x%x\n", oxid, sid);
16544 lpfc_nlp_init(vport, ndlp, sid);
16545 /* Put ndlp onto pport node list */
16546 lpfc_enqueue_node(vport, ndlp);
16547 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
16548 /* re-setup ndlp without removing from node list */
16549 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
16551 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
16552 "3275 Failed to active ndlp found "
16553 "for oxid:x%x SID:x%x\n", oxid, sid);
16558 /* Allocate buffer for rsp iocb */
16559 ctiocb = lpfc_sli_get_iocbq(phba);
16563 /* Extract the F_CTL field from FC_HDR */
16564 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
16566 icmd = &ctiocb->iocb;
16567 icmd->un.xseq64.bdl.bdeSize = 0;
16568 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
16569 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
16570 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
16571 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
16573 /* Fill in the rest of iocb fields */
16574 icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
16575 icmd->ulpBdeCount = 0;
16577 icmd->ulpClass = CLASS3;
16578 icmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
16579 ctiocb->context1 = lpfc_nlp_get(ndlp);
16581 ctiocb->iocb_cmpl = NULL;
16582 ctiocb->vport = phba->pport;
16583 ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_rsp_cmpl;
16584 ctiocb->sli4_lxritag = NO_XRI;
16585 ctiocb->sli4_xritag = NO_XRI;
16587 if (fctl & FC_FC_EX_CTX)
16588 /* Exchange responder sent the abort so we
16594 lxri = lpfc_sli4_xri_inrange(phba, xri);
16595 if (lxri != NO_XRI)
16596 lpfc_set_rrq_active(phba, ndlp, lxri,
16597 (xri == oxid) ? rxid : oxid, 0);
16598 /* For BA_ABTS from exchange responder, if the logical xri with
16599 * the oxid maps to the FCP XRI range, the port no longer has
16600 * that exchange context, send a BLS_RJT. Override the IOCB for
16603 if ((fctl & FC_FC_EX_CTX) &&
16604 (lxri > lpfc_sli4_get_iocb_cnt(phba))) {
16605 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
16606 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
16607 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
16608 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
16611 /* If BA_ABTS failed to abort a partially assembled receive sequence,
16612 * the driver no longer has that exchange, send a BLS_RJT. Override
16613 * the IOCB for a BA_RJT.
16615 if (aborted == false) {
16616 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
16617 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
16618 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
16619 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
16622 if (fctl & FC_FC_EX_CTX) {
16623 /* ABTS sent by responder to CT exchange, construction
16624 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
16625 * field and RX_ID from ABTS for RX_ID field.
16627 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_RSP);
16629 /* ABTS sent by initiator to CT exchange, construction
16630 * of BA_ACC will need to allocate a new XRI as for the
16633 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_INT);
16635 bf_set(lpfc_abts_rxid, &icmd->un.bls_rsp, rxid);
16636 bf_set(lpfc_abts_oxid, &icmd->un.bls_rsp, oxid);
16638 /* Xmit CT abts response on exchange <xid> */
16639 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
16640 "1200 Send BLS cmd x%x on oxid x%x Data: x%x\n",
16641 icmd->un.xseq64.w5.hcsw.Rctl, oxid, phba->link_state);
16643 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
16644 if (rc == IOCB_ERROR) {
16645 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
16646 "2925 Failed to issue CT ABTS RSP x%x on "
16647 "xri x%x, Data x%x\n",
16648 icmd->un.xseq64.w5.hcsw.Rctl, oxid,
16650 lpfc_nlp_put(ndlp);
16651 ctiocb->context1 = NULL;
16652 lpfc_sli_release_iocbq(phba, ctiocb);
16657 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
16658 * @vport: Pointer to the vport on which this sequence was received
16659 * @dmabuf: pointer to a dmabuf that describes the FC sequence
16661 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
16662 * receive sequence is only partially assembed by the driver, it shall abort
16663 * the partially assembled frames for the sequence. Otherwise, if the
16664 * unsolicited receive sequence has been completely assembled and passed to
16665 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
16666 * unsolicited sequence has been aborted. After that, it will issue a basic
16667 * accept to accept the abort.
16670 lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
16671 struct hbq_dmabuf *dmabuf)
16673 struct lpfc_hba *phba = vport->phba;
16674 struct fc_frame_header fc_hdr;
16678 /* Make a copy of fc_hdr before the dmabuf being released */
16679 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
16680 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
16682 if (fctl & FC_FC_EX_CTX) {
16683 /* ABTS by responder to exchange, no cleanup needed */
16686 /* ABTS by initiator to exchange, need to do cleanup */
16687 aborted = lpfc_sli4_abort_partial_seq(vport, dmabuf);
16688 if (aborted == false)
16689 aborted = lpfc_sli4_abort_ulp_seq(vport, dmabuf);
16691 lpfc_in_buf_free(phba, &dmabuf->dbuf);
16693 /* Respond with BA_ACC or BA_RJT accordingly */
16694 lpfc_sli4_seq_abort_rsp(vport, &fc_hdr, aborted);
16698 * lpfc_seq_complete - Indicates if a sequence is complete
16699 * @dmabuf: pointer to a dmabuf that describes the FC sequence
16701 * This function checks the sequence, starting with the frame described by
16702 * @dmabuf, to see if all the frames associated with this sequence are present.
16703 * the frames associated with this sequence are linked to the @dmabuf using the
16704 * dbuf list. This function looks for two major things. 1) That the first frame
16705 * has a sequence count of zero. 2) There is a frame with last frame of sequence
16706 * set. 3) That there are no holes in the sequence count. The function will
16707 * return 1 when the sequence is complete, otherwise it will return 0.
16710 lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
16712 struct fc_frame_header *hdr;
16713 struct lpfc_dmabuf *d_buf;
16714 struct hbq_dmabuf *seq_dmabuf;
16718 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
16719 /* make sure first fame of sequence has a sequence count of zero */
16720 if (hdr->fh_seq_cnt != seq_count)
16722 fctl = (hdr->fh_f_ctl[0] << 16 |
16723 hdr->fh_f_ctl[1] << 8 |
16725 /* If last frame of sequence we can return success. */
16726 if (fctl & FC_FC_END_SEQ)
16728 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
16729 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
16730 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
16731 /* If there is a hole in the sequence count then fail. */
16732 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
16734 fctl = (hdr->fh_f_ctl[0] << 16 |
16735 hdr->fh_f_ctl[1] << 8 |
16737 /* If last frame of sequence we can return success. */
16738 if (fctl & FC_FC_END_SEQ)
16745 * lpfc_prep_seq - Prep sequence for ULP processing
16746 * @vport: Pointer to the vport on which this sequence was received
16747 * @dmabuf: pointer to a dmabuf that describes the FC sequence
16749 * This function takes a sequence, described by a list of frames, and creates
16750 * a list of iocbq structures to describe the sequence. This iocbq list will be
16751 * used to issue to the generic unsolicited sequence handler. This routine
16752 * returns a pointer to the first iocbq in the list. If the function is unable
16753 * to allocate an iocbq then it throw out the received frames that were not
16754 * able to be described and return a pointer to the first iocbq. If unable to
16755 * allocate any iocbqs (including the first) this function will return NULL.
16757 static struct lpfc_iocbq *
16758 lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
16760 struct hbq_dmabuf *hbq_buf;
16761 struct lpfc_dmabuf *d_buf, *n_buf;
16762 struct lpfc_iocbq *first_iocbq, *iocbq;
16763 struct fc_frame_header *fc_hdr;
16765 uint32_t len, tot_len;
16766 struct ulp_bde64 *pbde;
16768 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
16769 /* remove from receive buffer list */
16770 list_del_init(&seq_dmabuf->hbuf.list);
16771 lpfc_update_rcv_time_stamp(vport);
16772 /* get the Remote Port's SID */
16773 sid = sli4_sid_from_fc_hdr(fc_hdr);
16775 /* Get an iocbq struct to fill in. */
16776 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
16778 /* Initialize the first IOCB. */
16779 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
16780 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
16781 first_iocbq->vport = vport;
16783 /* Check FC Header to see what TYPE of frame we are rcv'ing */
16784 if (sli4_type_from_fc_hdr(fc_hdr) == FC_TYPE_ELS) {
16785 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_ELS64_CX;
16786 first_iocbq->iocb.un.rcvels.parmRo =
16787 sli4_did_from_fc_hdr(fc_hdr);
16788 first_iocbq->iocb.ulpPU = PARM_NPIV_DID;
16790 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
16791 first_iocbq->iocb.ulpContext = NO_XRI;
16792 first_iocbq->iocb.unsli3.rcvsli3.ox_id =
16793 be16_to_cpu(fc_hdr->fh_ox_id);
16794 /* iocbq is prepped for internal consumption. Physical vpi. */
16795 first_iocbq->iocb.unsli3.rcvsli3.vpi =
16796 vport->phba->vpi_ids[vport->vpi];
16797 /* put the first buffer into the first IOCBq */
16798 tot_len = bf_get(lpfc_rcqe_length,
16799 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
16801 first_iocbq->context2 = &seq_dmabuf->dbuf;
16802 first_iocbq->context3 = NULL;
16803 first_iocbq->iocb.ulpBdeCount = 1;
16804 if (tot_len > LPFC_DATA_BUF_SIZE)
16805 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
16806 LPFC_DATA_BUF_SIZE;
16808 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize = tot_len;
16810 first_iocbq->iocb.un.rcvels.remoteID = sid;
16812 first_iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
16814 iocbq = first_iocbq;
16816 * Each IOCBq can have two Buffers assigned, so go through the list
16817 * of buffers for this sequence and save two buffers in each IOCBq
16819 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
16821 lpfc_in_buf_free(vport->phba, d_buf);
16824 if (!iocbq->context3) {
16825 iocbq->context3 = d_buf;
16826 iocbq->iocb.ulpBdeCount++;
16827 /* We need to get the size out of the right CQE */
16828 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
16829 len = bf_get(lpfc_rcqe_length,
16830 &hbq_buf->cq_event.cqe.rcqe_cmpl);
16831 pbde = (struct ulp_bde64 *)
16832 &iocbq->iocb.unsli3.sli3Words[4];
16833 if (len > LPFC_DATA_BUF_SIZE)
16834 pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
16836 pbde->tus.f.bdeSize = len;
16838 iocbq->iocb.unsli3.rcvsli3.acc_len += len;
16841 iocbq = lpfc_sli_get_iocbq(vport->phba);
16844 first_iocbq->iocb.ulpStatus =
16845 IOSTAT_FCP_RSP_ERROR;
16846 first_iocbq->iocb.un.ulpWord[4] =
16847 IOERR_NO_RESOURCES;
16849 lpfc_in_buf_free(vport->phba, d_buf);
16852 /* We need to get the size out of the right CQE */
16853 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
16854 len = bf_get(lpfc_rcqe_length,
16855 &hbq_buf->cq_event.cqe.rcqe_cmpl);
16856 iocbq->context2 = d_buf;
16857 iocbq->context3 = NULL;
16858 iocbq->iocb.ulpBdeCount = 1;
16859 if (len > LPFC_DATA_BUF_SIZE)
16860 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
16861 LPFC_DATA_BUF_SIZE;
16863 iocbq->iocb.un.cont64[0].tus.f.bdeSize = len;
16866 iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
16868 iocbq->iocb.un.rcvels.remoteID = sid;
16869 list_add_tail(&iocbq->list, &first_iocbq->list);
16872 return first_iocbq;
16876 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
16877 struct hbq_dmabuf *seq_dmabuf)
16879 struct fc_frame_header *fc_hdr;
16880 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
16881 struct lpfc_hba *phba = vport->phba;
16883 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
16884 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
16886 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16887 "2707 Ring %d handler: Failed to allocate "
16888 "iocb Rctl x%x Type x%x received\n",
16890 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
16893 if (!lpfc_complete_unsol_iocb(phba,
16894 phba->sli4_hba.els_wq->pring,
16895 iocbq, fc_hdr->fh_r_ctl,
16897 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16898 "2540 Ring %d handler: unexpected Rctl "
16899 "x%x Type x%x received\n",
16901 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
16903 /* Free iocb created in lpfc_prep_seq */
16904 list_for_each_entry_safe(curr_iocb, next_iocb,
16905 &iocbq->list, list) {
16906 list_del_init(&curr_iocb->list);
16907 lpfc_sli_release_iocbq(phba, curr_iocb);
16909 lpfc_sli_release_iocbq(phba, iocbq);
16913 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
16914 * @phba: Pointer to HBA context object.
16916 * This function is called with no lock held. This function processes all
16917 * the received buffers and gives it to upper layers when a received buffer
16918 * indicates that it is the final frame in the sequence. The interrupt
16919 * service routine processes received buffers at interrupt contexts.
16920 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
16921 * appropriate receive function when the final frame in a sequence is received.
16924 lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
16925 struct hbq_dmabuf *dmabuf)
16927 struct hbq_dmabuf *seq_dmabuf;
16928 struct fc_frame_header *fc_hdr;
16929 struct lpfc_vport *vport;
16933 /* Process each received buffer */
16934 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
16936 /* check to see if this a valid type of frame */
16937 if (lpfc_fc_frame_check(phba, fc_hdr)) {
16938 lpfc_in_buf_free(phba, &dmabuf->dbuf);
16942 if ((bf_get(lpfc_cqe_code,
16943 &dmabuf->cq_event.cqe.rcqe_cmpl) == CQE_CODE_RECEIVE_V1))
16944 fcfi = bf_get(lpfc_rcqe_fcf_id_v1,
16945 &dmabuf->cq_event.cqe.rcqe_cmpl);
16947 fcfi = bf_get(lpfc_rcqe_fcf_id,
16948 &dmabuf->cq_event.cqe.rcqe_cmpl);
16950 /* d_id this frame is directed to */
16951 did = sli4_did_from_fc_hdr(fc_hdr);
16953 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi, did);
16955 /* throw out the frame */
16956 lpfc_in_buf_free(phba, &dmabuf->dbuf);
16960 /* vport is registered unless we rcv a FLOGI directed to Fabric_DID */
16961 if (!(vport->vpi_state & LPFC_VPI_REGISTERED) &&
16962 (did != Fabric_DID)) {
16964 * Throw out the frame if we are not pt2pt.
16965 * The pt2pt protocol allows for discovery frames
16966 * to be received without a registered VPI.
16968 if (!(vport->fc_flag & FC_PT2PT) ||
16969 (phba->link_state == LPFC_HBA_READY)) {
16970 lpfc_in_buf_free(phba, &dmabuf->dbuf);
16975 /* Handle the basic abort sequence (BA_ABTS) event */
16976 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
16977 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
16981 /* Link this frame */
16982 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
16984 /* unable to add frame to vport - throw it out */
16985 lpfc_in_buf_free(phba, &dmabuf->dbuf);
16988 /* If not last frame in sequence continue processing frames. */
16989 if (!lpfc_seq_complete(seq_dmabuf))
16992 /* Send the complete sequence to the upper layer protocol */
16993 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
16997 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
16998 * @phba: pointer to lpfc hba data structure.
17000 * This routine is invoked to post rpi header templates to the
17001 * HBA consistent with the SLI-4 interface spec. This routine
17002 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
17003 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
17005 * This routine does not require any locks. It's usage is expected
17006 * to be driver load or reset recovery when the driver is
17011 * -EIO - The mailbox failed to complete successfully.
17012 * When this error occurs, the driver is not guaranteed
17013 * to have any rpi regions posted to the device and
17014 * must either attempt to repost the regions or take a
17018 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
17020 struct lpfc_rpi_hdr *rpi_page;
17024 /* SLI4 ports that support extents do not require RPI headers. */
17025 if (!phba->sli4_hba.rpi_hdrs_in_use)
17027 if (phba->sli4_hba.extents_in_use)
17030 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
17032 * Assign the rpi headers a physical rpi only if the driver
17033 * has not initialized those resources. A port reset only
17034 * needs the headers posted.
17036 if (bf_get(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags) !=
17038 rpi_page->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
17040 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
17041 if (rc != MBX_SUCCESS) {
17042 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17043 "2008 Error %d posting all rpi "
17051 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags,
17052 LPFC_RPI_RSRC_RDY);
17057 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
17058 * @phba: pointer to lpfc hba data structure.
17059 * @rpi_page: pointer to the rpi memory region.
17061 * This routine is invoked to post a single rpi header to the
17062 * HBA consistent with the SLI-4 interface spec. This memory region
17063 * maps up to 64 rpi context regions.
17067 * -ENOMEM - No available memory
17068 * -EIO - The mailbox failed to complete successfully.
17071 lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
17073 LPFC_MBOXQ_t *mboxq;
17074 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
17076 uint32_t shdr_status, shdr_add_status;
17077 union lpfc_sli4_cfg_shdr *shdr;
17079 /* SLI4 ports that support extents do not require RPI headers. */
17080 if (!phba->sli4_hba.rpi_hdrs_in_use)
17082 if (phba->sli4_hba.extents_in_use)
17085 /* The port is notified of the header region via a mailbox command. */
17086 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17088 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17089 "2001 Unable to allocate memory for issuing "
17090 "SLI_CONFIG_SPECIAL mailbox command\n");
17094 /* Post all rpi memory regions to the port. */
17095 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
17096 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
17097 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
17098 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
17099 sizeof(struct lpfc_sli4_cfg_mhdr),
17100 LPFC_SLI4_MBX_EMBED);
17103 /* Post the physical rpi to the port for this rpi header. */
17104 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
17105 rpi_page->start_rpi);
17106 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
17107 hdr_tmpl, rpi_page->page_count);
17109 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
17110 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
17111 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
17112 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
17113 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17114 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17115 if (rc != MBX_TIMEOUT)
17116 mempool_free(mboxq, phba->mbox_mem_pool);
17117 if (shdr_status || shdr_add_status || rc) {
17118 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
17119 "2514 POST_RPI_HDR mailbox failed with "
17120 "status x%x add_status x%x, mbx status x%x\n",
17121 shdr_status, shdr_add_status, rc);
17128 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
17129 * @phba: pointer to lpfc hba data structure.
17131 * This routine is invoked to post rpi header templates to the
17132 * HBA consistent with the SLI-4 interface spec. This routine
17133 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
17134 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
17137 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
17138 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
17141 lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
17144 uint16_t max_rpi, rpi_limit;
17145 uint16_t rpi_remaining, lrpi = 0;
17146 struct lpfc_rpi_hdr *rpi_hdr;
17147 unsigned long iflag;
17150 * Fetch the next logical rpi. Because this index is logical,
17151 * the driver starts at 0 each time.
17153 spin_lock_irqsave(&phba->hbalock, iflag);
17154 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
17155 rpi_limit = phba->sli4_hba.next_rpi;
17157 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, 0);
17158 if (rpi >= rpi_limit)
17159 rpi = LPFC_RPI_ALLOC_ERROR;
17161 set_bit(rpi, phba->sli4_hba.rpi_bmask);
17162 phba->sli4_hba.max_cfg_param.rpi_used++;
17163 phba->sli4_hba.rpi_count++;
17165 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
17166 "0001 rpi:%x max:%x lim:%x\n",
17167 (int) rpi, max_rpi, rpi_limit);
17170 * Don't try to allocate more rpi header regions if the device limit
17171 * has been exhausted.
17173 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
17174 (phba->sli4_hba.rpi_count >= max_rpi)) {
17175 spin_unlock_irqrestore(&phba->hbalock, iflag);
17180 * RPI header postings are not required for SLI4 ports capable of
17183 if (!phba->sli4_hba.rpi_hdrs_in_use) {
17184 spin_unlock_irqrestore(&phba->hbalock, iflag);
17189 * If the driver is running low on rpi resources, allocate another
17190 * page now. Note that the next_rpi value is used because
17191 * it represents how many are actually in use whereas max_rpi notes
17192 * how many are supported max by the device.
17194 rpi_remaining = phba->sli4_hba.next_rpi - phba->sli4_hba.rpi_count;
17195 spin_unlock_irqrestore(&phba->hbalock, iflag);
17196 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
17197 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
17199 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17200 "2002 Error Could not grow rpi "
17203 lrpi = rpi_hdr->start_rpi;
17204 rpi_hdr->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
17205 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
17213 * lpfc_sli4_free_rpi - Release an rpi for reuse.
17214 * @phba: pointer to lpfc hba data structure.
17216 * This routine is invoked to release an rpi to the pool of
17217 * available rpis maintained by the driver.
17220 __lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
17222 if (test_and_clear_bit(rpi, phba->sli4_hba.rpi_bmask)) {
17223 phba->sli4_hba.rpi_count--;
17224 phba->sli4_hba.max_cfg_param.rpi_used--;
17229 * lpfc_sli4_free_rpi - Release an rpi for reuse.
17230 * @phba: pointer to lpfc hba data structure.
17232 * This routine is invoked to release an rpi to the pool of
17233 * available rpis maintained by the driver.
17236 lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
17238 spin_lock_irq(&phba->hbalock);
17239 __lpfc_sli4_free_rpi(phba, rpi);
17240 spin_unlock_irq(&phba->hbalock);
17244 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
17245 * @phba: pointer to lpfc hba data structure.
17247 * This routine is invoked to remove the memory region that
17248 * provided rpi via a bitmask.
17251 lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
17253 kfree(phba->sli4_hba.rpi_bmask);
17254 kfree(phba->sli4_hba.rpi_ids);
17255 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
17259 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
17260 * @phba: pointer to lpfc hba data structure.
17262 * This routine is invoked to remove the memory region that
17263 * provided rpi via a bitmask.
17266 lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp,
17267 void (*cmpl)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *arg)
17269 LPFC_MBOXQ_t *mboxq;
17270 struct lpfc_hba *phba = ndlp->phba;
17273 /* The port is notified of the header region via a mailbox command. */
17274 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17278 /* Post all rpi memory regions to the port. */
17279 lpfc_resume_rpi(mboxq, ndlp);
17281 mboxq->mbox_cmpl = cmpl;
17282 mboxq->context1 = arg;
17283 mboxq->context2 = ndlp;
17285 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
17286 mboxq->vport = ndlp->vport;
17287 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
17288 if (rc == MBX_NOT_FINISHED) {
17289 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17290 "2010 Resume RPI Mailbox failed "
17291 "status %d, mbxStatus x%x\n", rc,
17292 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
17293 mempool_free(mboxq, phba->mbox_mem_pool);
17300 * lpfc_sli4_init_vpi - Initialize a vpi with the port
17301 * @vport: Pointer to the vport for which the vpi is being initialized
17303 * This routine is invoked to activate a vpi with the port.
17307 * -Evalue otherwise
17310 lpfc_sli4_init_vpi(struct lpfc_vport *vport)
17312 LPFC_MBOXQ_t *mboxq;
17314 int retval = MBX_SUCCESS;
17316 struct lpfc_hba *phba = vport->phba;
17317 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17320 lpfc_init_vpi(phba, mboxq, vport->vpi);
17321 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
17322 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
17323 if (rc != MBX_SUCCESS) {
17324 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
17325 "2022 INIT VPI Mailbox failed "
17326 "status %d, mbxStatus x%x\n", rc,
17327 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
17330 if (rc != MBX_TIMEOUT)
17331 mempool_free(mboxq, vport->phba->mbox_mem_pool);
17337 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
17338 * @phba: pointer to lpfc hba data structure.
17339 * @mboxq: Pointer to mailbox object.
17341 * This routine is invoked to manually add a single FCF record. The caller
17342 * must pass a completely initialized FCF_Record. This routine takes
17343 * care of the nonembedded mailbox operations.
17346 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
17349 union lpfc_sli4_cfg_shdr *shdr;
17350 uint32_t shdr_status, shdr_add_status;
17352 virt_addr = mboxq->sge_array->addr[0];
17353 /* The IOCTL status is embedded in the mailbox subheader. */
17354 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
17355 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17356 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17358 if ((shdr_status || shdr_add_status) &&
17359 (shdr_status != STATUS_FCF_IN_USE))
17360 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
17361 "2558 ADD_FCF_RECORD mailbox failed with "
17362 "status x%x add_status x%x\n",
17363 shdr_status, shdr_add_status);
17365 lpfc_sli4_mbox_cmd_free(phba, mboxq);
17369 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
17370 * @phba: pointer to lpfc hba data structure.
17371 * @fcf_record: pointer to the initialized fcf record to add.
17373 * This routine is invoked to manually add a single FCF record. The caller
17374 * must pass a completely initialized FCF_Record. This routine takes
17375 * care of the nonembedded mailbox operations.
17378 lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
17381 LPFC_MBOXQ_t *mboxq;
17384 struct lpfc_mbx_sge sge;
17385 uint32_t alloc_len, req_len;
17388 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17390 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
17391 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
17395 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
17398 /* Allocate DMA memory and set up the non-embedded mailbox command */
17399 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
17400 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
17401 req_len, LPFC_SLI4_MBX_NEMBED);
17402 if (alloc_len < req_len) {
17403 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
17404 "2523 Allocated DMA memory size (x%x) is "
17405 "less than the requested DMA memory "
17406 "size (x%x)\n", alloc_len, req_len);
17407 lpfc_sli4_mbox_cmd_free(phba, mboxq);
17412 * Get the first SGE entry from the non-embedded DMA memory. This
17413 * routine only uses a single SGE.
17415 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
17416 virt_addr = mboxq->sge_array->addr[0];
17418 * Configure the FCF record for FCFI 0. This is the driver's
17419 * hardcoded default and gets used in nonFIP mode.
17421 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
17422 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
17423 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
17426 * Copy the fcf_index and the FCF Record Data. The data starts after
17427 * the FCoE header plus word10. The data copy needs to be endian
17430 bytep += sizeof(uint32_t);
17431 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
17432 mboxq->vport = phba->pport;
17433 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
17434 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
17435 if (rc == MBX_NOT_FINISHED) {
17436 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
17437 "2515 ADD_FCF_RECORD mailbox failed with "
17438 "status 0x%x\n", rc);
17439 lpfc_sli4_mbox_cmd_free(phba, mboxq);
17448 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
17449 * @phba: pointer to lpfc hba data structure.
17450 * @fcf_record: pointer to the fcf record to write the default data.
17451 * @fcf_index: FCF table entry index.
17453 * This routine is invoked to build the driver's default FCF record. The
17454 * values used are hardcoded. This routine handles memory initialization.
17458 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
17459 struct fcf_record *fcf_record,
17460 uint16_t fcf_index)
17462 memset(fcf_record, 0, sizeof(struct fcf_record));
17463 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
17464 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
17465 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
17466 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
17467 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
17468 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
17469 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
17470 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
17471 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
17472 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
17473 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
17474 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
17475 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
17476 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
17477 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
17478 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
17479 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
17480 /* Set the VLAN bit map */
17481 if (phba->valid_vlan) {
17482 fcf_record->vlan_bitmap[phba->vlan_id / 8]
17483 = 1 << (phba->vlan_id % 8);
17488 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
17489 * @phba: pointer to lpfc hba data structure.
17490 * @fcf_index: FCF table entry offset.
17492 * This routine is invoked to scan the entire FCF table by reading FCF
17493 * record and processing it one at a time starting from the @fcf_index
17494 * for initial FCF discovery or fast FCF failover rediscovery.
17496 * Return 0 if the mailbox command is submitted successfully, none 0
17500 lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
17503 LPFC_MBOXQ_t *mboxq;
17505 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
17506 phba->fcoe_cvl_eventtag_attn = phba->fcoe_cvl_eventtag;
17507 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17509 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
17510 "2000 Failed to allocate mbox for "
17513 goto fail_fcf_scan;
17515 /* Construct the read FCF record mailbox command */
17516 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
17519 goto fail_fcf_scan;
17521 /* Issue the mailbox command asynchronously */
17522 mboxq->vport = phba->pport;
17523 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
17525 spin_lock_irq(&phba->hbalock);
17526 phba->hba_flag |= FCF_TS_INPROG;
17527 spin_unlock_irq(&phba->hbalock);
17529 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
17530 if (rc == MBX_NOT_FINISHED)
17533 /* Reset eligible FCF count for new scan */
17534 if (fcf_index == LPFC_FCOE_FCF_GET_FIRST)
17535 phba->fcf.eligible_fcf_cnt = 0;
17541 lpfc_sli4_mbox_cmd_free(phba, mboxq);
17542 /* FCF scan failed, clear FCF_TS_INPROG flag */
17543 spin_lock_irq(&phba->hbalock);
17544 phba->hba_flag &= ~FCF_TS_INPROG;
17545 spin_unlock_irq(&phba->hbalock);
17551 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
17552 * @phba: pointer to lpfc hba data structure.
17553 * @fcf_index: FCF table entry offset.
17555 * This routine is invoked to read an FCF record indicated by @fcf_index
17556 * and to use it for FLOGI roundrobin FCF failover.
17558 * Return 0 if the mailbox command is submitted successfully, none 0
17562 lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
17565 LPFC_MBOXQ_t *mboxq;
17567 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17569 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
17570 "2763 Failed to allocate mbox for "
17573 goto fail_fcf_read;
17575 /* Construct the read FCF record mailbox command */
17576 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
17579 goto fail_fcf_read;
17581 /* Issue the mailbox command asynchronously */
17582 mboxq->vport = phba->pport;
17583 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
17584 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
17585 if (rc == MBX_NOT_FINISHED)
17591 if (error && mboxq)
17592 lpfc_sli4_mbox_cmd_free(phba, mboxq);
17597 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
17598 * @phba: pointer to lpfc hba data structure.
17599 * @fcf_index: FCF table entry offset.
17601 * This routine is invoked to read an FCF record indicated by @fcf_index to
17602 * determine whether it's eligible for FLOGI roundrobin failover list.
17604 * Return 0 if the mailbox command is submitted successfully, none 0
17608 lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
17611 LPFC_MBOXQ_t *mboxq;
17613 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17615 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
17616 "2758 Failed to allocate mbox for "
17619 goto fail_fcf_read;
17621 /* Construct the read FCF record mailbox command */
17622 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
17625 goto fail_fcf_read;
17627 /* Issue the mailbox command asynchronously */
17628 mboxq->vport = phba->pport;
17629 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
17630 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
17631 if (rc == MBX_NOT_FINISHED)
17637 if (error && mboxq)
17638 lpfc_sli4_mbox_cmd_free(phba, mboxq);
17643 * lpfc_check_next_fcf_pri_level
17644 * phba pointer to the lpfc_hba struct for this port.
17645 * This routine is called from the lpfc_sli4_fcf_rr_next_index_get
17646 * routine when the rr_bmask is empty. The FCF indecies are put into the
17647 * rr_bmask based on their priority level. Starting from the highest priority
17648 * to the lowest. The most likely FCF candidate will be in the highest
17649 * priority group. When this routine is called it searches the fcf_pri list for
17650 * next lowest priority group and repopulates the rr_bmask with only those
17653 * 1=success 0=failure
17656 lpfc_check_next_fcf_pri_level(struct lpfc_hba *phba)
17658 uint16_t next_fcf_pri;
17659 uint16_t last_index;
17660 struct lpfc_fcf_pri *fcf_pri;
17664 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
17665 LPFC_SLI4_FCF_TBL_INDX_MAX);
17666 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
17667 "3060 Last IDX %d\n", last_index);
17669 /* Verify the priority list has 2 or more entries */
17670 spin_lock_irq(&phba->hbalock);
17671 if (list_empty(&phba->fcf.fcf_pri_list) ||
17672 list_is_singular(&phba->fcf.fcf_pri_list)) {
17673 spin_unlock_irq(&phba->hbalock);
17674 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
17675 "3061 Last IDX %d\n", last_index);
17676 return 0; /* Empty rr list */
17678 spin_unlock_irq(&phba->hbalock);
17682 * Clear the rr_bmask and set all of the bits that are at this
17685 memset(phba->fcf.fcf_rr_bmask, 0,
17686 sizeof(*phba->fcf.fcf_rr_bmask));
17687 spin_lock_irq(&phba->hbalock);
17688 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
17689 if (fcf_pri->fcf_rec.flag & LPFC_FCF_FLOGI_FAILED)
17692 * the 1st priority that has not FLOGI failed
17693 * will be the highest.
17696 next_fcf_pri = fcf_pri->fcf_rec.priority;
17697 spin_unlock_irq(&phba->hbalock);
17698 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
17699 rc = lpfc_sli4_fcf_rr_index_set(phba,
17700 fcf_pri->fcf_rec.fcf_index);
17704 spin_lock_irq(&phba->hbalock);
17707 * if next_fcf_pri was not set above and the list is not empty then
17708 * we have failed flogis on all of them. So reset flogi failed
17709 * and start at the beginning.
17711 if (!next_fcf_pri && !list_empty(&phba->fcf.fcf_pri_list)) {
17712 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
17713 fcf_pri->fcf_rec.flag &= ~LPFC_FCF_FLOGI_FAILED;
17715 * the 1st priority that has not FLOGI failed
17716 * will be the highest.
17719 next_fcf_pri = fcf_pri->fcf_rec.priority;
17720 spin_unlock_irq(&phba->hbalock);
17721 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
17722 rc = lpfc_sli4_fcf_rr_index_set(phba,
17723 fcf_pri->fcf_rec.fcf_index);
17727 spin_lock_irq(&phba->hbalock);
17731 spin_unlock_irq(&phba->hbalock);
17736 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
17737 * @phba: pointer to lpfc hba data structure.
17739 * This routine is to get the next eligible FCF record index in a round
17740 * robin fashion. If the next eligible FCF record index equals to the
17741 * initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
17742 * shall be returned, otherwise, the next eligible FCF record's index
17743 * shall be returned.
17746 lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
17748 uint16_t next_fcf_index;
17751 /* Search start from next bit of currently registered FCF index */
17752 next_fcf_index = phba->fcf.current_rec.fcf_indx;
17755 /* Determine the next fcf index to check */
17756 next_fcf_index = (next_fcf_index + 1) % LPFC_SLI4_FCF_TBL_INDX_MAX;
17757 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
17758 LPFC_SLI4_FCF_TBL_INDX_MAX,
17761 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
17762 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
17764 * If we have wrapped then we need to clear the bits that
17765 * have been tested so that we can detect when we should
17766 * change the priority level.
17768 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
17769 LPFC_SLI4_FCF_TBL_INDX_MAX, 0);
17773 /* Check roundrobin failover list empty condition */
17774 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX ||
17775 next_fcf_index == phba->fcf.current_rec.fcf_indx) {
17777 * If next fcf index is not found check if there are lower
17778 * Priority level fcf's in the fcf_priority list.
17779 * Set up the rr_bmask with all of the avaiable fcf bits
17780 * at that level and continue the selection process.
17782 if (lpfc_check_next_fcf_pri_level(phba))
17783 goto initial_priority;
17784 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
17785 "2844 No roundrobin failover FCF available\n");
17786 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX)
17787 return LPFC_FCOE_FCF_NEXT_NONE;
17789 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
17790 "3063 Only FCF available idx %d, flag %x\n",
17792 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag);
17793 return next_fcf_index;
17797 if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX &&
17798 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag &
17799 LPFC_FCF_FLOGI_FAILED) {
17800 if (list_is_singular(&phba->fcf.fcf_pri_list))
17801 return LPFC_FCOE_FCF_NEXT_NONE;
17803 goto next_priority;
17806 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
17807 "2845 Get next roundrobin failover FCF (x%x)\n",
17810 return next_fcf_index;
17814 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
17815 * @phba: pointer to lpfc hba data structure.
17817 * This routine sets the FCF record index in to the eligible bmask for
17818 * roundrobin failover search. It checks to make sure that the index
17819 * does not go beyond the range of the driver allocated bmask dimension
17820 * before setting the bit.
17822 * Returns 0 if the index bit successfully set, otherwise, it returns
17826 lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
17828 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
17829 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
17830 "2610 FCF (x%x) reached driver's book "
17831 "keeping dimension:x%x\n",
17832 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
17835 /* Set the eligible FCF record index bmask */
17836 set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
17838 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
17839 "2790 Set FCF (x%x) to roundrobin FCF failover "
17840 "bmask\n", fcf_index);
17846 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
17847 * @phba: pointer to lpfc hba data structure.
17849 * This routine clears the FCF record index from the eligible bmask for
17850 * roundrobin failover search. It checks to make sure that the index
17851 * does not go beyond the range of the driver allocated bmask dimension
17852 * before clearing the bit.
17855 lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
17857 struct lpfc_fcf_pri *fcf_pri, *fcf_pri_next;
17858 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
17859 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
17860 "2762 FCF (x%x) reached driver's book "
17861 "keeping dimension:x%x\n",
17862 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
17865 /* Clear the eligible FCF record index bmask */
17866 spin_lock_irq(&phba->hbalock);
17867 list_for_each_entry_safe(fcf_pri, fcf_pri_next, &phba->fcf.fcf_pri_list,
17869 if (fcf_pri->fcf_rec.fcf_index == fcf_index) {
17870 list_del_init(&fcf_pri->list);
17874 spin_unlock_irq(&phba->hbalock);
17875 clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
17877 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
17878 "2791 Clear FCF (x%x) from roundrobin failover "
17879 "bmask\n", fcf_index);
17883 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
17884 * @phba: pointer to lpfc hba data structure.
17886 * This routine is the completion routine for the rediscover FCF table mailbox
17887 * command. If the mailbox command returned failure, it will try to stop the
17888 * FCF rediscover wait timer.
17891 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
17893 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
17894 uint32_t shdr_status, shdr_add_status;
17896 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
17898 shdr_status = bf_get(lpfc_mbox_hdr_status,
17899 &redisc_fcf->header.cfg_shdr.response);
17900 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
17901 &redisc_fcf->header.cfg_shdr.response);
17902 if (shdr_status || shdr_add_status) {
17903 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
17904 "2746 Requesting for FCF rediscovery failed "
17905 "status x%x add_status x%x\n",
17906 shdr_status, shdr_add_status);
17907 if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
17908 spin_lock_irq(&phba->hbalock);
17909 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
17910 spin_unlock_irq(&phba->hbalock);
17912 * CVL event triggered FCF rediscover request failed,
17913 * last resort to re-try current registered FCF entry.
17915 lpfc_retry_pport_discovery(phba);
17917 spin_lock_irq(&phba->hbalock);
17918 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
17919 spin_unlock_irq(&phba->hbalock);
17921 * DEAD FCF event triggered FCF rediscover request
17922 * failed, last resort to fail over as a link down
17923 * to FCF registration.
17925 lpfc_sli4_fcf_dead_failthrough(phba);
17928 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
17929 "2775 Start FCF rediscover quiescent timer\n");
17931 * Start FCF rediscovery wait timer for pending FCF
17932 * before rescan FCF record table.
17934 lpfc_fcf_redisc_wait_start_timer(phba);
17937 mempool_free(mbox, phba->mbox_mem_pool);
17941 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
17942 * @phba: pointer to lpfc hba data structure.
17944 * This routine is invoked to request for rediscovery of the entire FCF table
17948 lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
17950 LPFC_MBOXQ_t *mbox;
17951 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
17954 /* Cancel retry delay timers to all vports before FCF rediscover */
17955 lpfc_cancel_all_vport_retry_delay_timer(phba);
17957 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17959 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17960 "2745 Failed to allocate mbox for "
17961 "requesting FCF rediscover.\n");
17965 length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
17966 sizeof(struct lpfc_sli4_cfg_mhdr));
17967 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
17968 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
17969 length, LPFC_SLI4_MBX_EMBED);
17971 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
17972 /* Set count to 0 for invalidating the entire FCF database */
17973 bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
17975 /* Issue the mailbox command asynchronously */
17976 mbox->vport = phba->pport;
17977 mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
17978 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
17980 if (rc == MBX_NOT_FINISHED) {
17981 mempool_free(mbox, phba->mbox_mem_pool);
17988 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
17989 * @phba: pointer to lpfc hba data structure.
17991 * This function is the failover routine as a last resort to the FCF DEAD
17992 * event when driver failed to perform fast FCF failover.
17995 lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
17997 uint32_t link_state;
18000 * Last resort as FCF DEAD event failover will treat this as
18001 * a link down, but save the link state because we don't want
18002 * it to be changed to Link Down unless it is already down.
18004 link_state = phba->link_state;
18005 lpfc_linkdown(phba);
18006 phba->link_state = link_state;
18008 /* Unregister FCF if no devices connected to it */
18009 lpfc_unregister_unused_fcf(phba);
18013 * lpfc_sli_get_config_region23 - Get sli3 port region 23 data.
18014 * @phba: pointer to lpfc hba data structure.
18015 * @rgn23_data: pointer to configure region 23 data.
18017 * This function gets SLI3 port configure region 23 data through memory dump
18018 * mailbox command. When it successfully retrieves data, the size of the data
18019 * will be returned, otherwise, 0 will be returned.
18022 lpfc_sli_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
18024 LPFC_MBOXQ_t *pmb = NULL;
18026 uint32_t offset = 0;
18032 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18034 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18035 "2600 failed to allocate mailbox memory\n");
18041 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
18042 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
18044 if (rc != MBX_SUCCESS) {
18045 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
18046 "2601 failed to read config "
18047 "region 23, rc 0x%x Status 0x%x\n",
18048 rc, mb->mbxStatus);
18049 mb->un.varDmp.word_cnt = 0;
18052 * dump mem may return a zero when finished or we got a
18053 * mailbox error, either way we are done.
18055 if (mb->un.varDmp.word_cnt == 0)
18057 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
18058 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
18060 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
18061 rgn23_data + offset,
18062 mb->un.varDmp.word_cnt);
18063 offset += mb->un.varDmp.word_cnt;
18064 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
18066 mempool_free(pmb, phba->mbox_mem_pool);
18071 * lpfc_sli4_get_config_region23 - Get sli4 port region 23 data.
18072 * @phba: pointer to lpfc hba data structure.
18073 * @rgn23_data: pointer to configure region 23 data.
18075 * This function gets SLI4 port configure region 23 data through memory dump
18076 * mailbox command. When it successfully retrieves data, the size of the data
18077 * will be returned, otherwise, 0 will be returned.
18080 lpfc_sli4_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
18082 LPFC_MBOXQ_t *mboxq = NULL;
18083 struct lpfc_dmabuf *mp = NULL;
18084 struct lpfc_mqe *mqe;
18085 uint32_t data_length = 0;
18091 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18093 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18094 "3105 failed to allocate mailbox memory\n");
18098 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq))
18100 mqe = &mboxq->u.mqe;
18101 mp = (struct lpfc_dmabuf *) mboxq->context1;
18102 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
18105 data_length = mqe->un.mb_words[5];
18106 if (data_length == 0)
18108 if (data_length > DMP_RGN23_SIZE) {
18112 lpfc_sli_pcimem_bcopy((char *)mp->virt, rgn23_data, data_length);
18114 mempool_free(mboxq, phba->mbox_mem_pool);
18116 lpfc_mbuf_free(phba, mp->virt, mp->phys);
18119 return data_length;
18123 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
18124 * @phba: pointer to lpfc hba data structure.
18126 * This function read region 23 and parse TLV for port status to
18127 * decide if the user disaled the port. If the TLV indicates the
18128 * port is disabled, the hba_flag is set accordingly.
18131 lpfc_sli_read_link_ste(struct lpfc_hba *phba)
18133 uint8_t *rgn23_data = NULL;
18134 uint32_t if_type, data_size, sub_tlv_len, tlv_offset;
18135 uint32_t offset = 0;
18137 /* Get adapter Region 23 data */
18138 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
18142 if (phba->sli_rev < LPFC_SLI_REV4)
18143 data_size = lpfc_sli_get_config_region23(phba, rgn23_data);
18145 if_type = bf_get(lpfc_sli_intf_if_type,
18146 &phba->sli4_hba.sli_intf);
18147 if (if_type == LPFC_SLI_INTF_IF_TYPE_0)
18149 data_size = lpfc_sli4_get_config_region23(phba, rgn23_data);
18155 /* Check the region signature first */
18156 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
18157 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18158 "2619 Config region 23 has bad signature\n");
18163 /* Check the data structure version */
18164 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
18165 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18166 "2620 Config region 23 has bad version\n");
18171 /* Parse TLV entries in the region */
18172 while (offset < data_size) {
18173 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
18176 * If the TLV is not driver specific TLV or driver id is
18177 * not linux driver id, skip the record.
18179 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
18180 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
18181 (rgn23_data[offset + 3] != 0)) {
18182 offset += rgn23_data[offset + 1] * 4 + 4;
18186 /* Driver found a driver specific TLV in the config region */
18187 sub_tlv_len = rgn23_data[offset + 1] * 4;
18192 * Search for configured port state sub-TLV.
18194 while ((offset < data_size) &&
18195 (tlv_offset < sub_tlv_len)) {
18196 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
18201 if (rgn23_data[offset] != PORT_STE_TYPE) {
18202 offset += rgn23_data[offset + 1] * 4 + 4;
18203 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
18207 /* This HBA contains PORT_STE configured */
18208 if (!rgn23_data[offset + 2])
18209 phba->hba_flag |= LINK_DISABLED;
18221 * lpfc_wr_object - write an object to the firmware
18222 * @phba: HBA structure that indicates port to create a queue on.
18223 * @dmabuf_list: list of dmabufs to write to the port.
18224 * @size: the total byte value of the objects to write to the port.
18225 * @offset: the current offset to be used to start the transfer.
18227 * This routine will create a wr_object mailbox command to send to the port.
18228 * the mailbox command will be constructed using the dma buffers described in
18229 * @dmabuf_list to create a list of BDEs. This routine will fill in as many
18230 * BDEs that the imbedded mailbox can support. The @offset variable will be
18231 * used to indicate the starting offset of the transfer and will also return
18232 * the offset after the write object mailbox has completed. @size is used to
18233 * determine the end of the object and whether the eof bit should be set.
18235 * Return 0 is successful and offset will contain the the new offset to use
18236 * for the next write.
18237 * Return negative value for error cases.
18240 lpfc_wr_object(struct lpfc_hba *phba, struct list_head *dmabuf_list,
18241 uint32_t size, uint32_t *offset)
18243 struct lpfc_mbx_wr_object *wr_object;
18244 LPFC_MBOXQ_t *mbox;
18246 uint32_t shdr_status, shdr_add_status;
18248 union lpfc_sli4_cfg_shdr *shdr;
18249 struct lpfc_dmabuf *dmabuf;
18250 uint32_t written = 0;
18252 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18256 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
18257 LPFC_MBOX_OPCODE_WRITE_OBJECT,
18258 sizeof(struct lpfc_mbx_wr_object) -
18259 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
18261 wr_object = (struct lpfc_mbx_wr_object *)&mbox->u.mqe.un.wr_object;
18262 wr_object->u.request.write_offset = *offset;
18263 sprintf((uint8_t *)wr_object->u.request.object_name, "/");
18264 wr_object->u.request.object_name[0] =
18265 cpu_to_le32(wr_object->u.request.object_name[0]);
18266 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 0);
18267 list_for_each_entry(dmabuf, dmabuf_list, list) {
18268 if (i >= LPFC_MBX_WR_CONFIG_MAX_BDE || written >= size)
18270 wr_object->u.request.bde[i].addrLow = putPaddrLow(dmabuf->phys);
18271 wr_object->u.request.bde[i].addrHigh =
18272 putPaddrHigh(dmabuf->phys);
18273 if (written + SLI4_PAGE_SIZE >= size) {
18274 wr_object->u.request.bde[i].tus.f.bdeSize =
18276 written += (size - written);
18277 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 1);
18279 wr_object->u.request.bde[i].tus.f.bdeSize =
18281 written += SLI4_PAGE_SIZE;
18285 wr_object->u.request.bde_count = i;
18286 bf_set(lpfc_wr_object_write_length, &wr_object->u.request, written);
18287 if (!phba->sli4_hba.intr_enable)
18288 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
18290 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
18291 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
18293 /* The IOCTL status is embedded in the mailbox subheader. */
18294 shdr = (union lpfc_sli4_cfg_shdr *) &wr_object->header.cfg_shdr;
18295 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
18296 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
18297 if (rc != MBX_TIMEOUT)
18298 mempool_free(mbox, phba->mbox_mem_pool);
18299 if (shdr_status || shdr_add_status || rc) {
18300 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18301 "3025 Write Object mailbox failed with "
18302 "status x%x add_status x%x, mbx status x%x\n",
18303 shdr_status, shdr_add_status, rc);
18306 *offset += wr_object->u.response.actual_write_length;
18311 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
18312 * @vport: pointer to vport data structure.
18314 * This function iterate through the mailboxq and clean up all REG_LOGIN
18315 * and REG_VPI mailbox commands associated with the vport. This function
18316 * is called when driver want to restart discovery of the vport due to
18317 * a Clear Virtual Link event.
18320 lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
18322 struct lpfc_hba *phba = vport->phba;
18323 LPFC_MBOXQ_t *mb, *nextmb;
18324 struct lpfc_dmabuf *mp;
18325 struct lpfc_nodelist *ndlp;
18326 struct lpfc_nodelist *act_mbx_ndlp = NULL;
18327 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
18328 LIST_HEAD(mbox_cmd_list);
18329 uint8_t restart_loop;
18331 /* Clean up internally queued mailbox commands with the vport */
18332 spin_lock_irq(&phba->hbalock);
18333 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
18334 if (mb->vport != vport)
18337 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
18338 (mb->u.mb.mbxCommand != MBX_REG_VPI))
18341 list_del(&mb->list);
18342 list_add_tail(&mb->list, &mbox_cmd_list);
18344 /* Clean up active mailbox command with the vport */
18345 mb = phba->sli.mbox_active;
18346 if (mb && (mb->vport == vport)) {
18347 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
18348 (mb->u.mb.mbxCommand == MBX_REG_VPI))
18349 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
18350 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
18351 act_mbx_ndlp = (struct lpfc_nodelist *)mb->context2;
18352 /* Put reference count for delayed processing */
18353 act_mbx_ndlp = lpfc_nlp_get(act_mbx_ndlp);
18354 /* Unregister the RPI when mailbox complete */
18355 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
18358 /* Cleanup any mailbox completions which are not yet processed */
18361 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
18363 * If this mailox is already processed or it is
18364 * for another vport ignore it.
18366 if ((mb->vport != vport) ||
18367 (mb->mbox_flag & LPFC_MBX_IMED_UNREG))
18370 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
18371 (mb->u.mb.mbxCommand != MBX_REG_VPI))
18374 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
18375 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
18376 ndlp = (struct lpfc_nodelist *)mb->context2;
18377 /* Unregister the RPI when mailbox complete */
18378 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
18380 spin_unlock_irq(&phba->hbalock);
18381 spin_lock(shost->host_lock);
18382 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
18383 spin_unlock(shost->host_lock);
18384 spin_lock_irq(&phba->hbalock);
18388 } while (restart_loop);
18390 spin_unlock_irq(&phba->hbalock);
18392 /* Release the cleaned-up mailbox commands */
18393 while (!list_empty(&mbox_cmd_list)) {
18394 list_remove_head(&mbox_cmd_list, mb, LPFC_MBOXQ_t, list);
18395 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
18396 mp = (struct lpfc_dmabuf *) (mb->context1);
18398 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
18401 ndlp = (struct lpfc_nodelist *) mb->context2;
18402 mb->context2 = NULL;
18404 spin_lock(shost->host_lock);
18405 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
18406 spin_unlock(shost->host_lock);
18407 lpfc_nlp_put(ndlp);
18410 mempool_free(mb, phba->mbox_mem_pool);
18413 /* Release the ndlp with the cleaned-up active mailbox command */
18414 if (act_mbx_ndlp) {
18415 spin_lock(shost->host_lock);
18416 act_mbx_ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
18417 spin_unlock(shost->host_lock);
18418 lpfc_nlp_put(act_mbx_ndlp);
18423 * lpfc_drain_txq - Drain the txq
18424 * @phba: Pointer to HBA context object.
18426 * This function attempt to submit IOCBs on the txq
18427 * to the adapter. For SLI4 adapters, the txq contains
18428 * ELS IOCBs that have been deferred because the there
18429 * are no SGLs. This congestion can occur with large
18430 * vport counts during node discovery.
18434 lpfc_drain_txq(struct lpfc_hba *phba)
18436 LIST_HEAD(completions);
18437 struct lpfc_sli_ring *pring;
18438 struct lpfc_iocbq *piocbq = NULL;
18439 unsigned long iflags = 0;
18440 char *fail_msg = NULL;
18441 struct lpfc_sglq *sglq;
18442 union lpfc_wqe128 wqe128;
18443 union lpfc_wqe *wqe = (union lpfc_wqe *) &wqe128;
18444 uint32_t txq_cnt = 0;
18446 pring = lpfc_phba_elsring(phba);
18448 spin_lock_irqsave(&pring->ring_lock, iflags);
18449 list_for_each_entry(piocbq, &pring->txq, list) {
18453 if (txq_cnt > pring->txq_max)
18454 pring->txq_max = txq_cnt;
18456 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18458 while (!list_empty(&pring->txq)) {
18459 spin_lock_irqsave(&pring->ring_lock, iflags);
18461 piocbq = lpfc_sli_ringtx_get(phba, pring);
18463 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18464 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18465 "2823 txq empty and txq_cnt is %d\n ",
18469 sglq = __lpfc_sli_get_els_sglq(phba, piocbq);
18471 __lpfc_sli_ringtx_put(phba, pring, piocbq);
18472 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18477 /* The xri and iocb resources secured,
18478 * attempt to issue request
18480 piocbq->sli4_lxritag = sglq->sli4_lxritag;
18481 piocbq->sli4_xritag = sglq->sli4_xritag;
18482 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocbq, sglq))
18483 fail_msg = "to convert bpl to sgl";
18484 else if (lpfc_sli4_iocb2wqe(phba, piocbq, wqe))
18485 fail_msg = "to convert iocb to wqe";
18486 else if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, wqe))
18487 fail_msg = " - Wq is full";
18489 lpfc_sli_ringtxcmpl_put(phba, pring, piocbq);
18492 /* Failed means we can't issue and need to cancel */
18493 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18494 "2822 IOCB failed %s iotag 0x%x "
18497 piocbq->iotag, piocbq->sli4_xritag);
18498 list_add_tail(&piocbq->list, &completions);
18500 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18503 /* Cancel all the IOCBs that cannot be issued */
18504 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
18505 IOERR_SLI_ABORTED);
18511 * lpfc_wqe_bpl2sgl - Convert the bpl/bde to a sgl.
18512 * @phba: Pointer to HBA context object.
18513 * @pwqe: Pointer to command WQE.
18514 * @sglq: Pointer to the scatter gather queue object.
18516 * This routine converts the bpl or bde that is in the WQE
18517 * to a sgl list for the sli4 hardware. The physical address
18518 * of the bpl/bde is converted back to a virtual address.
18519 * If the WQE contains a BPL then the list of BDE's is
18520 * converted to sli4_sge's. If the WQE contains a single
18521 * BDE then it is converted to a single sli_sge.
18522 * The WQE is still in cpu endianness so the contents of
18523 * the bpl can be used without byte swapping.
18525 * Returns valid XRI = Success, NO_XRI = Failure.
18528 lpfc_wqe_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeq,
18529 struct lpfc_sglq *sglq)
18531 uint16_t xritag = NO_XRI;
18532 struct ulp_bde64 *bpl = NULL;
18533 struct ulp_bde64 bde;
18534 struct sli4_sge *sgl = NULL;
18535 struct lpfc_dmabuf *dmabuf;
18536 union lpfc_wqe *wqe;
18539 uint32_t offset = 0; /* accumulated offset in the sg request list */
18540 int inbound = 0; /* number of sg reply entries inbound from firmware */
18543 if (!pwqeq || !sglq)
18546 sgl = (struct sli4_sge *)sglq->sgl;
18548 pwqeq->iocb.ulpIoTag = pwqeq->iotag;
18550 cmd = bf_get(wqe_cmnd, &wqe->generic.wqe_com);
18551 if (cmd == CMD_XMIT_BLS_RSP64_WQE)
18552 return sglq->sli4_xritag;
18553 numBdes = pwqeq->rsvd2;
18555 /* The addrHigh and addrLow fields within the WQE
18556 * have not been byteswapped yet so there is no
18557 * need to swap them back.
18559 if (pwqeq->context3)
18560 dmabuf = (struct lpfc_dmabuf *)pwqeq->context3;
18564 bpl = (struct ulp_bde64 *)dmabuf->virt;
18568 for (i = 0; i < numBdes; i++) {
18569 /* Should already be byte swapped. */
18570 sgl->addr_hi = bpl->addrHigh;
18571 sgl->addr_lo = bpl->addrLow;
18573 sgl->word2 = le32_to_cpu(sgl->word2);
18574 if ((i+1) == numBdes)
18575 bf_set(lpfc_sli4_sge_last, sgl, 1);
18577 bf_set(lpfc_sli4_sge_last, sgl, 0);
18578 /* swap the size field back to the cpu so we
18579 * can assign it to the sgl.
18581 bde.tus.w = le32_to_cpu(bpl->tus.w);
18582 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
18583 /* The offsets in the sgl need to be accumulated
18584 * separately for the request and reply lists.
18585 * The request is always first, the reply follows.
18588 case CMD_GEN_REQUEST64_WQE:
18589 /* add up the reply sg entries */
18590 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
18592 /* first inbound? reset the offset */
18595 bf_set(lpfc_sli4_sge_offset, sgl, offset);
18596 bf_set(lpfc_sli4_sge_type, sgl,
18597 LPFC_SGE_TYPE_DATA);
18598 offset += bde.tus.f.bdeSize;
18600 case CMD_FCP_TRSP64_WQE:
18601 bf_set(lpfc_sli4_sge_offset, sgl, 0);
18602 bf_set(lpfc_sli4_sge_type, sgl,
18603 LPFC_SGE_TYPE_DATA);
18605 case CMD_FCP_TSEND64_WQE:
18606 case CMD_FCP_TRECEIVE64_WQE:
18607 bf_set(lpfc_sli4_sge_type, sgl,
18608 bpl->tus.f.bdeFlags);
18612 offset += bde.tus.f.bdeSize;
18613 bf_set(lpfc_sli4_sge_offset, sgl, offset);
18616 sgl->word2 = cpu_to_le32(sgl->word2);
18620 } else if (wqe->gen_req.bde.tus.f.bdeFlags == BUFF_TYPE_BDE_64) {
18621 /* The addrHigh and addrLow fields of the BDE have not
18622 * been byteswapped yet so they need to be swapped
18623 * before putting them in the sgl.
18625 sgl->addr_hi = cpu_to_le32(wqe->gen_req.bde.addrHigh);
18626 sgl->addr_lo = cpu_to_le32(wqe->gen_req.bde.addrLow);
18627 sgl->word2 = le32_to_cpu(sgl->word2);
18628 bf_set(lpfc_sli4_sge_last, sgl, 1);
18629 sgl->word2 = cpu_to_le32(sgl->word2);
18630 sgl->sge_len = cpu_to_le32(wqe->gen_req.bde.tus.f.bdeSize);
18632 return sglq->sli4_xritag;
18636 * lpfc_sli4_issue_wqe - Issue an SLI4 Work Queue Entry (WQE)
18637 * @phba: Pointer to HBA context object.
18638 * @ring_number: Base sli ring number
18639 * @pwqe: Pointer to command WQE.
18642 lpfc_sli4_issue_wqe(struct lpfc_hba *phba, uint32_t ring_number,
18643 struct lpfc_iocbq *pwqe)
18645 union lpfc_wqe *wqe = &pwqe->wqe;
18646 struct lpfc_nvmet_rcv_ctx *ctxp;
18647 struct lpfc_queue *wq;
18648 struct lpfc_sglq *sglq;
18649 struct lpfc_sli_ring *pring;
18650 unsigned long iflags;
18652 /* NVME_LS and NVME_LS ABTS requests. */
18653 if (pwqe->iocb_flag & LPFC_IO_NVME_LS) {
18654 pring = phba->sli4_hba.nvmels_wq->pring;
18655 spin_lock_irqsave(&pring->ring_lock, iflags);
18656 sglq = __lpfc_sli_get_els_sglq(phba, pwqe);
18658 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18661 pwqe->sli4_lxritag = sglq->sli4_lxritag;
18662 pwqe->sli4_xritag = sglq->sli4_xritag;
18663 if (lpfc_wqe_bpl2sgl(phba, pwqe, sglq) == NO_XRI) {
18664 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18667 bf_set(wqe_xri_tag, &pwqe->wqe.xmit_bls_rsp.wqe_com,
18668 pwqe->sli4_xritag);
18669 if (lpfc_sli4_wq_put(phba->sli4_hba.nvmels_wq, wqe)) {
18670 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18673 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
18674 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18678 /* NVME_FCREQ and NVME_ABTS requests */
18679 if (pwqe->iocb_flag & LPFC_IO_NVME) {
18680 /* Get the IO distribution (hba_wqidx) for WQ assignment. */
18681 pring = phba->sli4_hba.nvme_wq[pwqe->hba_wqidx]->pring;
18683 spin_lock_irqsave(&pring->ring_lock, iflags);
18684 wq = phba->sli4_hba.nvme_wq[pwqe->hba_wqidx];
18685 bf_set(wqe_cqid, &wqe->generic.wqe_com,
18686 phba->sli4_hba.nvme_cq[pwqe->hba_wqidx]->queue_id);
18687 if (lpfc_sli4_wq_put(wq, wqe)) {
18688 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18691 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
18692 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18696 /* NVMET requests */
18697 if (pwqe->iocb_flag & LPFC_IO_NVMET) {
18698 /* Get the IO distribution (hba_wqidx) for WQ assignment. */
18699 pring = phba->sli4_hba.nvme_wq[pwqe->hba_wqidx]->pring;
18701 spin_lock_irqsave(&pring->ring_lock, iflags);
18702 ctxp = pwqe->context2;
18703 sglq = ctxp->rqb_buffer->sglq;
18704 if (pwqe->sli4_xritag == NO_XRI) {
18705 pwqe->sli4_lxritag = sglq->sli4_lxritag;
18706 pwqe->sli4_xritag = sglq->sli4_xritag;
18708 bf_set(wqe_xri_tag, &pwqe->wqe.xmit_bls_rsp.wqe_com,
18709 pwqe->sli4_xritag);
18710 wq = phba->sli4_hba.nvme_wq[pwqe->hba_wqidx];
18711 bf_set(wqe_cqid, &wqe->generic.wqe_com,
18712 phba->sli4_hba.nvme_cq[pwqe->hba_wqidx]->queue_id);
18713 if (lpfc_sli4_wq_put(wq, wqe)) {
18714 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18717 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
18718 spin_unlock_irqrestore(&pring->ring_lock, iflags);