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 void lpfc_sli4_handle_mds_loopback(struct lpfc_vport *vport,
78 struct hbq_dmabuf *dmabuf);
79 static int lpfc_sli4_fp_handle_cqe(struct lpfc_hba *, struct lpfc_queue *,
81 static int lpfc_sli4_post_sgl_list(struct lpfc_hba *, struct list_head *,
83 static void lpfc_sli4_hba_handle_eqe(struct lpfc_hba *, struct lpfc_eqe *,
85 static bool lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba);
86 static bool lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba);
87 static int lpfc_sli4_abort_nvme_io(struct lpfc_hba *phba,
88 struct lpfc_sli_ring *pring,
89 struct lpfc_iocbq *cmdiocb);
92 lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq)
98 * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
99 * @q: The Work Queue to operate on.
100 * @wqe: The work Queue Entry to put on the Work queue.
102 * This routine will copy the contents of @wqe to the next available entry on
103 * the @q. This function will then ring the Work Queue Doorbell to signal the
104 * HBA to start processing the Work Queue Entry. This function returns 0 if
105 * successful. If no entries are available on @q then this function will return
107 * The caller is expected to hold the hbalock when calling this routine.
110 lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe)
112 union lpfc_wqe *temp_wqe;
113 struct lpfc_register doorbell;
117 /* sanity check on queue memory */
120 temp_wqe = q->qe[q->host_index].wqe;
122 /* If the host has not yet processed the next entry then we are done */
123 idx = ((q->host_index + 1) % q->entry_count);
124 if (idx == q->hba_index) {
129 /* set consumption flag every once in a while */
130 if (!((q->host_index + 1) % q->entry_repost))
131 bf_set(wqe_wqec, &wqe->generic.wqe_com, 1);
132 if (q->phba->sli3_options & LPFC_SLI4_PHWQ_ENABLED)
133 bf_set(wqe_wqid, &wqe->generic.wqe_com, q->queue_id);
134 lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size);
135 /* ensure WQE bcopy flushed before doorbell write */
138 /* Update the host index before invoking device */
139 host_index = q->host_index;
145 if (q->db_format == LPFC_DB_LIST_FORMAT) {
146 bf_set(lpfc_wq_db_list_fm_num_posted, &doorbell, 1);
147 bf_set(lpfc_wq_db_list_fm_index, &doorbell, host_index);
148 bf_set(lpfc_wq_db_list_fm_id, &doorbell, q->queue_id);
149 } else if (q->db_format == LPFC_DB_RING_FORMAT) {
150 bf_set(lpfc_wq_db_ring_fm_num_posted, &doorbell, 1);
151 bf_set(lpfc_wq_db_ring_fm_id, &doorbell, q->queue_id);
155 writel(doorbell.word0, q->db_regaddr);
161 * lpfc_sli4_wq_release - Updates internal hba index for WQ
162 * @q: The Work Queue to operate on.
163 * @index: The index to advance the hba index to.
165 * This routine will update the HBA index of a queue to reflect consumption of
166 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
167 * an entry the host calls this function to update the queue's internal
168 * pointers. This routine returns the number of entries that were consumed by
172 lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index)
174 uint32_t released = 0;
176 /* sanity check on queue memory */
180 if (q->hba_index == index)
183 q->hba_index = ((q->hba_index + 1) % q->entry_count);
185 } while (q->hba_index != index);
190 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
191 * @q: The Mailbox Queue to operate on.
192 * @wqe: The Mailbox Queue Entry to put on the Work queue.
194 * This routine will copy the contents of @mqe to the next available entry on
195 * the @q. This function will then ring the Work Queue Doorbell to signal the
196 * HBA to start processing the Work Queue Entry. This function returns 0 if
197 * successful. If no entries are available on @q then this function will return
199 * The caller is expected to hold the hbalock when calling this routine.
202 lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
204 struct lpfc_mqe *temp_mqe;
205 struct lpfc_register doorbell;
207 /* sanity check on queue memory */
210 temp_mqe = q->qe[q->host_index].mqe;
212 /* If the host has not yet processed the next entry then we are done */
213 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
215 lpfc_sli_pcimem_bcopy(mqe, temp_mqe, q->entry_size);
216 /* Save off the mailbox pointer for completion */
217 q->phba->mbox = (MAILBOX_t *)temp_mqe;
219 /* Update the host index before invoking device */
220 q->host_index = ((q->host_index + 1) % q->entry_count);
224 bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1);
225 bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id);
226 writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr);
231 * lpfc_sli4_mq_release - Updates internal hba index for MQ
232 * @q: The Mailbox Queue to operate on.
234 * This routine will update the HBA index of a queue to reflect consumption of
235 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
236 * an entry the host calls this function to update the queue's internal
237 * pointers. This routine returns the number of entries that were consumed by
241 lpfc_sli4_mq_release(struct lpfc_queue *q)
243 /* sanity check on queue memory */
247 /* Clear the mailbox pointer for completion */
248 q->phba->mbox = NULL;
249 q->hba_index = ((q->hba_index + 1) % q->entry_count);
254 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
255 * @q: The Event Queue to get the first valid EQE from
257 * This routine will get the first valid Event Queue Entry from @q, update
258 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
259 * the Queue (no more work to do), or the Queue is full of EQEs that have been
260 * processed, but not popped back to the HBA then this routine will return NULL.
262 static struct lpfc_eqe *
263 lpfc_sli4_eq_get(struct lpfc_queue *q)
265 struct lpfc_eqe *eqe;
268 /* sanity check on queue memory */
271 eqe = q->qe[q->hba_index].eqe;
273 /* If the next EQE is not valid then we are done */
274 if (!bf_get_le32(lpfc_eqe_valid, eqe))
276 /* If the host has not yet processed the next entry then we are done */
277 idx = ((q->hba_index + 1) % q->entry_count);
278 if (idx == q->host_index)
284 * insert barrier for instruction interlock : data from the hardware
285 * must have the valid bit checked before it can be copied and acted
286 * upon. Speculative instructions were allowing a bcopy at the start
287 * of lpfc_sli4_fp_handle_wcqe(), which is called immediately
288 * after our return, to copy data before the valid bit check above
289 * was done. As such, some of the copied data was stale. The barrier
290 * ensures the check is before any data is copied.
297 * lpfc_sli4_eq_clr_intr - Turn off interrupts from this EQ
298 * @q: The Event Queue to disable interrupts
302 lpfc_sli4_eq_clr_intr(struct lpfc_queue *q)
304 struct lpfc_register doorbell;
307 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
308 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
309 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
310 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
311 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
312 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
316 * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
317 * @q: The Event Queue that the host has completed processing for.
318 * @arm: Indicates whether the host wants to arms this CQ.
320 * This routine will mark all Event Queue Entries on @q, from the last
321 * known completed entry to the last entry that was processed, as completed
322 * by clearing the valid bit for each completion queue entry. Then it will
323 * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
324 * The internal host index in the @q will be updated by this routine to indicate
325 * that the host has finished processing the entries. The @arm parameter
326 * indicates that the queue should be rearmed when ringing the doorbell.
328 * This function will return the number of EQEs that were popped.
331 lpfc_sli4_eq_release(struct lpfc_queue *q, bool arm)
333 uint32_t released = 0;
334 struct lpfc_eqe *temp_eqe;
335 struct lpfc_register doorbell;
337 /* sanity check on queue memory */
341 /* while there are valid entries */
342 while (q->hba_index != q->host_index) {
343 temp_eqe = q->qe[q->host_index].eqe;
344 bf_set_le32(lpfc_eqe_valid, temp_eqe, 0);
346 q->host_index = ((q->host_index + 1) % q->entry_count);
348 if (unlikely(released == 0 && !arm))
351 /* ring doorbell for number popped */
354 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
355 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
357 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
358 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
359 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
360 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
361 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
362 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
363 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
364 if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
365 readl(q->phba->sli4_hba.EQCQDBregaddr);
370 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
371 * @q: The Completion Queue to get the first valid CQE from
373 * This routine will get the first valid Completion Queue Entry from @q, update
374 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
375 * the Queue (no more work to do), or the Queue is full of CQEs that have been
376 * processed, but not popped back to the HBA then this routine will return NULL.
378 static struct lpfc_cqe *
379 lpfc_sli4_cq_get(struct lpfc_queue *q)
381 struct lpfc_cqe *cqe;
384 /* sanity check on queue memory */
388 /* If the next CQE is not valid then we are done */
389 if (!bf_get_le32(lpfc_cqe_valid, q->qe[q->hba_index].cqe))
391 /* If the host has not yet processed the next entry then we are done */
392 idx = ((q->hba_index + 1) % q->entry_count);
393 if (idx == q->host_index)
396 cqe = q->qe[q->hba_index].cqe;
400 * insert barrier for instruction interlock : data from the hardware
401 * must have the valid bit checked before it can be copied and acted
402 * upon. Given what was seen in lpfc_sli4_cq_get() of speculative
403 * instructions allowing action on content before valid bit checked,
404 * add barrier here as well. May not be needed as "content" is a
405 * single 32-bit entity here (vs multi word structure for cq's).
412 * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ
413 * @q: The Completion Queue that the host has completed processing for.
414 * @arm: Indicates whether the host wants to arms this CQ.
416 * This routine will mark all Completion queue entries on @q, from the last
417 * known completed entry to the last entry that was processed, as completed
418 * by clearing the valid bit for each completion queue entry. Then it will
419 * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
420 * The internal host index in the @q will be updated by this routine to indicate
421 * that the host has finished processing the entries. The @arm parameter
422 * indicates that the queue should be rearmed when ringing the doorbell.
424 * This function will return the number of CQEs that were released.
427 lpfc_sli4_cq_release(struct lpfc_queue *q, bool arm)
429 uint32_t released = 0;
430 struct lpfc_cqe *temp_qe;
431 struct lpfc_register doorbell;
433 /* sanity check on queue memory */
436 /* while there are valid entries */
437 while (q->hba_index != q->host_index) {
438 temp_qe = q->qe[q->host_index].cqe;
439 bf_set_le32(lpfc_cqe_valid, temp_qe, 0);
441 q->host_index = ((q->host_index + 1) % q->entry_count);
443 if (unlikely(released == 0 && !arm))
446 /* ring doorbell for number popped */
449 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
450 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
451 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION);
452 bf_set(lpfc_eqcq_doorbell_cqid_hi, &doorbell,
453 (q->queue_id >> LPFC_CQID_HI_FIELD_SHIFT));
454 bf_set(lpfc_eqcq_doorbell_cqid_lo, &doorbell, q->queue_id);
455 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
460 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
461 * @q: The Header Receive Queue to operate on.
462 * @wqe: The Receive Queue Entry to put on the Receive queue.
464 * This routine will copy the contents of @wqe to the next available entry on
465 * the @q. This function will then ring the Receive Queue Doorbell to signal the
466 * HBA to start processing the Receive Queue Entry. This function returns the
467 * index that the rqe was copied to if successful. If no entries are available
468 * on @q then this function will return -ENOMEM.
469 * The caller is expected to hold the hbalock when calling this routine.
472 lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
473 struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe)
475 struct lpfc_rqe *temp_hrqe;
476 struct lpfc_rqe *temp_drqe;
477 struct lpfc_register doorbell;
480 /* sanity check on queue memory */
481 if (unlikely(!hq) || unlikely(!dq))
483 put_index = hq->host_index;
484 temp_hrqe = hq->qe[put_index].rqe;
485 temp_drqe = dq->qe[dq->host_index].rqe;
487 if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ)
489 if (put_index != dq->host_index)
491 /* If the host has not yet processed the next entry then we are done */
492 if (((put_index + 1) % hq->entry_count) == hq->hba_index)
494 lpfc_sli_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size);
495 lpfc_sli_pcimem_bcopy(drqe, temp_drqe, dq->entry_size);
497 /* Update the host index to point to the next slot */
498 hq->host_index = ((put_index + 1) % hq->entry_count);
499 dq->host_index = ((dq->host_index + 1) % dq->entry_count);
502 /* Ring The Header Receive Queue Doorbell */
503 if (!(hq->host_index % hq->entry_repost)) {
505 if (hq->db_format == LPFC_DB_RING_FORMAT) {
506 bf_set(lpfc_rq_db_ring_fm_num_posted, &doorbell,
508 bf_set(lpfc_rq_db_ring_fm_id, &doorbell, hq->queue_id);
509 } else if (hq->db_format == LPFC_DB_LIST_FORMAT) {
510 bf_set(lpfc_rq_db_list_fm_num_posted, &doorbell,
512 bf_set(lpfc_rq_db_list_fm_index, &doorbell,
514 bf_set(lpfc_rq_db_list_fm_id, &doorbell, hq->queue_id);
518 writel(doorbell.word0, hq->db_regaddr);
524 * lpfc_sli4_rq_release - Updates internal hba index for RQ
525 * @q: The Header Receive Queue to operate on.
527 * This routine will update the HBA index of a queue to reflect consumption of
528 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
529 * consumed an entry the host calls this function to update the queue's
530 * internal pointers. This routine returns the number of entries that were
531 * consumed by the HBA.
534 lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq)
536 /* sanity check on queue memory */
537 if (unlikely(!hq) || unlikely(!dq))
540 if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ))
542 hq->hba_index = ((hq->hba_index + 1) % hq->entry_count);
543 dq->hba_index = ((dq->hba_index + 1) % dq->entry_count);
548 * lpfc_cmd_iocb - Get next command iocb entry in the ring
549 * @phba: Pointer to HBA context object.
550 * @pring: Pointer to driver SLI ring object.
552 * This function returns pointer to next command iocb entry
553 * in the command ring. The caller must hold hbalock to prevent
554 * other threads consume the next command iocb.
555 * SLI-2/SLI-3 provide different sized iocbs.
557 static inline IOCB_t *
558 lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
560 return (IOCB_t *) (((char *) pring->sli.sli3.cmdringaddr) +
561 pring->sli.sli3.cmdidx * phba->iocb_cmd_size);
565 * lpfc_resp_iocb - Get next response iocb entry in the ring
566 * @phba: Pointer to HBA context object.
567 * @pring: Pointer to driver SLI ring object.
569 * This function returns pointer to next response iocb entry
570 * in the response ring. The caller must hold hbalock to make sure
571 * that no other thread consume the next response iocb.
572 * SLI-2/SLI-3 provide different sized iocbs.
574 static inline IOCB_t *
575 lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
577 return (IOCB_t *) (((char *) pring->sli.sli3.rspringaddr) +
578 pring->sli.sli3.rspidx * phba->iocb_rsp_size);
582 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
583 * @phba: Pointer to HBA context object.
585 * This function is called with hbalock held. This function
586 * allocates a new driver iocb object from the iocb pool. If the
587 * allocation is successful, it returns pointer to the newly
588 * allocated iocb object else it returns NULL.
591 __lpfc_sli_get_iocbq(struct lpfc_hba *phba)
593 struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
594 struct lpfc_iocbq * iocbq = NULL;
596 lockdep_assert_held(&phba->hbalock);
598 list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
601 if (phba->iocb_cnt > phba->iocb_max)
602 phba->iocb_max = phba->iocb_cnt;
607 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
608 * @phba: Pointer to HBA context object.
609 * @xritag: XRI value.
611 * This function clears the sglq pointer from the array of acive
612 * sglq's. The xritag that is passed in is used to index into the
613 * array. Before the xritag can be used it needs to be adjusted
614 * by subtracting the xribase.
616 * Returns sglq ponter = success, NULL = Failure.
619 __lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
621 struct lpfc_sglq *sglq;
623 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
624 phba->sli4_hba.lpfc_sglq_active_list[xritag] = NULL;
629 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
630 * @phba: Pointer to HBA context object.
631 * @xritag: XRI value.
633 * This function returns the sglq pointer from the array of acive
634 * sglq's. The xritag that is passed in is used to index into the
635 * array. Before the xritag can be used it needs to be adjusted
636 * by subtracting the xribase.
638 * Returns sglq ponter = success, NULL = Failure.
641 __lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
643 struct lpfc_sglq *sglq;
645 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
650 * lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
651 * @phba: Pointer to HBA context object.
652 * @xritag: xri used in this exchange.
653 * @rrq: The RRQ to be cleared.
657 lpfc_clr_rrq_active(struct lpfc_hba *phba,
659 struct lpfc_node_rrq *rrq)
661 struct lpfc_nodelist *ndlp = NULL;
663 if ((rrq->vport) && NLP_CHK_NODE_ACT(rrq->ndlp))
664 ndlp = lpfc_findnode_did(rrq->vport, rrq->nlp_DID);
666 /* The target DID could have been swapped (cable swap)
667 * we should use the ndlp from the findnode if it is
670 if ((!ndlp) && rrq->ndlp)
676 if (test_and_clear_bit(xritag, ndlp->active_rrqs_xri_bitmap)) {
679 rrq->rrq_stop_time = 0;
682 mempool_free(rrq, phba->rrq_pool);
686 * lpfc_handle_rrq_active - Checks if RRQ has waithed RATOV.
687 * @phba: Pointer to HBA context object.
689 * This function is called with hbalock held. This function
690 * Checks if stop_time (ratov from setting rrq active) has
691 * been reached, if it has and the send_rrq flag is set then
692 * it will call lpfc_send_rrq. If the send_rrq flag is not set
693 * then it will just call the routine to clear the rrq and
694 * free the rrq resource.
695 * The timer is set to the next rrq that is going to expire before
696 * leaving the routine.
700 lpfc_handle_rrq_active(struct lpfc_hba *phba)
702 struct lpfc_node_rrq *rrq;
703 struct lpfc_node_rrq *nextrrq;
704 unsigned long next_time;
705 unsigned long iflags;
708 spin_lock_irqsave(&phba->hbalock, iflags);
709 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
710 next_time = jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
711 list_for_each_entry_safe(rrq, nextrrq,
712 &phba->active_rrq_list, list) {
713 if (time_after(jiffies, rrq->rrq_stop_time))
714 list_move(&rrq->list, &send_rrq);
715 else if (time_before(rrq->rrq_stop_time, next_time))
716 next_time = rrq->rrq_stop_time;
718 spin_unlock_irqrestore(&phba->hbalock, iflags);
719 if ((!list_empty(&phba->active_rrq_list)) &&
720 (!(phba->pport->load_flag & FC_UNLOADING)))
721 mod_timer(&phba->rrq_tmr, next_time);
722 list_for_each_entry_safe(rrq, nextrrq, &send_rrq, list) {
723 list_del(&rrq->list);
725 /* this call will free the rrq */
726 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
727 else if (lpfc_send_rrq(phba, rrq)) {
728 /* if we send the rrq then the completion handler
729 * will clear the bit in the xribitmap.
731 lpfc_clr_rrq_active(phba, rrq->xritag,
738 * lpfc_get_active_rrq - Get the active RRQ for this exchange.
739 * @vport: Pointer to vport context object.
740 * @xri: The xri used in the exchange.
741 * @did: The targets DID for this exchange.
743 * returns NULL = rrq not found in the phba->active_rrq_list.
744 * rrq = rrq for this xri and target.
746 struct lpfc_node_rrq *
747 lpfc_get_active_rrq(struct lpfc_vport *vport, uint16_t xri, uint32_t did)
749 struct lpfc_hba *phba = vport->phba;
750 struct lpfc_node_rrq *rrq;
751 struct lpfc_node_rrq *nextrrq;
752 unsigned long iflags;
754 if (phba->sli_rev != LPFC_SLI_REV4)
756 spin_lock_irqsave(&phba->hbalock, iflags);
757 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) {
758 if (rrq->vport == vport && rrq->xritag == xri &&
759 rrq->nlp_DID == did){
760 list_del(&rrq->list);
761 spin_unlock_irqrestore(&phba->hbalock, iflags);
765 spin_unlock_irqrestore(&phba->hbalock, iflags);
770 * lpfc_cleanup_vports_rrqs - Remove and clear the active RRQ for this vport.
771 * @vport: Pointer to vport context object.
772 * @ndlp: Pointer to the lpfc_node_list structure.
773 * If ndlp is NULL Remove all active RRQs for this vport from the
774 * phba->active_rrq_list and clear the rrq.
775 * If ndlp is not NULL then only remove rrqs for this vport & this ndlp.
778 lpfc_cleanup_vports_rrqs(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
781 struct lpfc_hba *phba = vport->phba;
782 struct lpfc_node_rrq *rrq;
783 struct lpfc_node_rrq *nextrrq;
784 unsigned long iflags;
787 if (phba->sli_rev != LPFC_SLI_REV4)
790 lpfc_sli4_vport_delete_els_xri_aborted(vport);
791 lpfc_sli4_vport_delete_fcp_xri_aborted(vport);
793 spin_lock_irqsave(&phba->hbalock, iflags);
794 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list)
795 if ((rrq->vport == vport) && (!ndlp || rrq->ndlp == ndlp))
796 list_move(&rrq->list, &rrq_list);
797 spin_unlock_irqrestore(&phba->hbalock, iflags);
799 list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
800 list_del(&rrq->list);
801 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
806 * lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
807 * @phba: Pointer to HBA context object.
808 * @ndlp: Targets nodelist pointer for this exchange.
809 * @xritag the xri in the bitmap to test.
811 * This function is called with hbalock held. This function
812 * returns 0 = rrq not active for this xri
813 * 1 = rrq is valid for this xri.
816 lpfc_test_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
819 lockdep_assert_held(&phba->hbalock);
822 if (!ndlp->active_rrqs_xri_bitmap)
824 if (test_bit(xritag, ndlp->active_rrqs_xri_bitmap))
831 * lpfc_set_rrq_active - set RRQ active bit in xri_bitmap.
832 * @phba: Pointer to HBA context object.
833 * @ndlp: nodelist pointer for this target.
834 * @xritag: xri used in this exchange.
835 * @rxid: Remote Exchange ID.
836 * @send_rrq: Flag used to determine if we should send rrq els cmd.
838 * This function takes the hbalock.
839 * The active bit is always set in the active rrq xri_bitmap even
840 * if there is no slot avaiable for the other rrq information.
842 * returns 0 rrq actived for this xri
843 * < 0 No memory or invalid ndlp.
846 lpfc_set_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
847 uint16_t xritag, uint16_t rxid, uint16_t send_rrq)
849 unsigned long iflags;
850 struct lpfc_node_rrq *rrq;
856 if (!phba->cfg_enable_rrq)
859 spin_lock_irqsave(&phba->hbalock, iflags);
860 if (phba->pport->load_flag & FC_UNLOADING) {
861 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
866 * set the active bit even if there is no mem available.
868 if (NLP_CHK_FREE_REQ(ndlp))
871 if (ndlp->vport && (ndlp->vport->load_flag & FC_UNLOADING))
874 if (!ndlp->active_rrqs_xri_bitmap)
877 if (test_and_set_bit(xritag, ndlp->active_rrqs_xri_bitmap))
880 spin_unlock_irqrestore(&phba->hbalock, iflags);
881 rrq = mempool_alloc(phba->rrq_pool, GFP_KERNEL);
883 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
884 "3155 Unable to allocate RRQ xri:0x%x rxid:0x%x"
885 " DID:0x%x Send:%d\n",
886 xritag, rxid, ndlp->nlp_DID, send_rrq);
889 if (phba->cfg_enable_rrq == 1)
890 rrq->send_rrq = send_rrq;
893 rrq->xritag = xritag;
894 rrq->rrq_stop_time = jiffies +
895 msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
897 rrq->nlp_DID = ndlp->nlp_DID;
898 rrq->vport = ndlp->vport;
900 spin_lock_irqsave(&phba->hbalock, iflags);
901 empty = list_empty(&phba->active_rrq_list);
902 list_add_tail(&rrq->list, &phba->active_rrq_list);
903 phba->hba_flag |= HBA_RRQ_ACTIVE;
905 lpfc_worker_wake_up(phba);
906 spin_unlock_irqrestore(&phba->hbalock, iflags);
909 spin_unlock_irqrestore(&phba->hbalock, iflags);
910 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
911 "2921 Can't set rrq active xri:0x%x rxid:0x%x"
912 " DID:0x%x Send:%d\n",
913 xritag, rxid, ndlp->nlp_DID, send_rrq);
918 * __lpfc_sli_get_els_sglq - Allocates an iocb object from sgl pool
919 * @phba: Pointer to HBA context object.
920 * @piocb: Pointer to the iocbq.
922 * This function is called with the ring lock held. This function
923 * gets a new driver sglq object from the sglq list. If the
924 * list is not empty then it is successful, it returns pointer to the newly
925 * allocated sglq object else it returns NULL.
927 static struct lpfc_sglq *
928 __lpfc_sli_get_els_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
930 struct list_head *lpfc_els_sgl_list = &phba->sli4_hba.lpfc_els_sgl_list;
931 struct lpfc_sglq *sglq = NULL;
932 struct lpfc_sglq *start_sglq = NULL;
933 struct lpfc_scsi_buf *lpfc_cmd;
934 struct lpfc_nodelist *ndlp;
937 lockdep_assert_held(&phba->hbalock);
939 if (piocbq->iocb_flag & LPFC_IO_FCP) {
940 lpfc_cmd = (struct lpfc_scsi_buf *) piocbq->context1;
941 ndlp = lpfc_cmd->rdata->pnode;
942 } else if ((piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) &&
943 !(piocbq->iocb_flag & LPFC_IO_LIBDFC)) {
944 ndlp = piocbq->context_un.ndlp;
945 } else if (piocbq->iocb_flag & LPFC_IO_LIBDFC) {
946 if (piocbq->iocb_flag & LPFC_IO_LOOPBACK)
949 ndlp = piocbq->context_un.ndlp;
951 ndlp = piocbq->context1;
954 spin_lock(&phba->sli4_hba.sgl_list_lock);
955 list_remove_head(lpfc_els_sgl_list, sglq, struct lpfc_sglq, list);
960 if (ndlp && ndlp->active_rrqs_xri_bitmap &&
961 test_bit(sglq->sli4_lxritag,
962 ndlp->active_rrqs_xri_bitmap)) {
963 /* This xri has an rrq outstanding for this DID.
964 * put it back in the list and get another xri.
966 list_add_tail(&sglq->list, lpfc_els_sgl_list);
968 list_remove_head(lpfc_els_sgl_list, sglq,
969 struct lpfc_sglq, list);
970 if (sglq == start_sglq) {
971 list_add_tail(&sglq->list, lpfc_els_sgl_list);
979 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
980 sglq->state = SGL_ALLOCATED;
982 spin_unlock(&phba->sli4_hba.sgl_list_lock);
987 * __lpfc_sli_get_nvmet_sglq - Allocates an iocb object from sgl pool
988 * @phba: Pointer to HBA context object.
989 * @piocb: Pointer to the iocbq.
991 * This function is called with the sgl_list lock held. This function
992 * gets a new driver sglq object from the sglq list. If the
993 * list is not empty then it is successful, it returns pointer to the newly
994 * allocated sglq object else it returns NULL.
997 __lpfc_sli_get_nvmet_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
999 struct list_head *lpfc_nvmet_sgl_list;
1000 struct lpfc_sglq *sglq = NULL;
1002 lpfc_nvmet_sgl_list = &phba->sli4_hba.lpfc_nvmet_sgl_list;
1004 lockdep_assert_held(&phba->sli4_hba.sgl_list_lock);
1006 list_remove_head(lpfc_nvmet_sgl_list, sglq, struct lpfc_sglq, list);
1009 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
1010 sglq->state = SGL_ALLOCATED;
1015 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
1016 * @phba: Pointer to HBA context object.
1018 * This function is called with no lock held. This function
1019 * allocates a new driver iocb object from the iocb pool. If the
1020 * allocation is successful, it returns pointer to the newly
1021 * allocated iocb object else it returns NULL.
1024 lpfc_sli_get_iocbq(struct lpfc_hba *phba)
1026 struct lpfc_iocbq * iocbq = NULL;
1027 unsigned long iflags;
1029 spin_lock_irqsave(&phba->hbalock, iflags);
1030 iocbq = __lpfc_sli_get_iocbq(phba);
1031 spin_unlock_irqrestore(&phba->hbalock, iflags);
1036 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
1037 * @phba: Pointer to HBA context object.
1038 * @iocbq: Pointer to driver iocb object.
1040 * This function is called with hbalock held to release driver
1041 * iocb object to the iocb pool. The iotag in the iocb object
1042 * does not change for each use of the iocb object. This function
1043 * clears all other fields of the iocb object when it is freed.
1044 * The sqlq structure that holds the xritag and phys and virtual
1045 * mappings for the scatter gather list is retrieved from the
1046 * active array of sglq. The get of the sglq pointer also clears
1047 * the entry in the array. If the status of the IO indiactes that
1048 * this IO was aborted then the sglq entry it put on the
1049 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
1050 * IO has good status or fails for any other reason then the sglq
1051 * entry is added to the free list (lpfc_els_sgl_list).
1054 __lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1056 struct lpfc_sglq *sglq;
1057 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1058 unsigned long iflag = 0;
1059 struct lpfc_sli_ring *pring;
1061 lockdep_assert_held(&phba->hbalock);
1063 if (iocbq->sli4_xritag == NO_XRI)
1066 sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_lxritag);
1070 if (iocbq->iocb_flag & LPFC_IO_NVMET) {
1071 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock,
1073 sglq->state = SGL_FREED;
1075 list_add_tail(&sglq->list,
1076 &phba->sli4_hba.lpfc_nvmet_sgl_list);
1077 spin_unlock_irqrestore(
1078 &phba->sli4_hba.sgl_list_lock, iflag);
1082 pring = phba->sli4_hba.els_wq->pring;
1083 if ((iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) &&
1084 (sglq->state != SGL_XRI_ABORTED)) {
1085 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock,
1087 list_add(&sglq->list,
1088 &phba->sli4_hba.lpfc_abts_els_sgl_list);
1089 spin_unlock_irqrestore(
1090 &phba->sli4_hba.sgl_list_lock, iflag);
1092 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock,
1094 sglq->state = SGL_FREED;
1096 list_add_tail(&sglq->list,
1097 &phba->sli4_hba.lpfc_els_sgl_list);
1098 spin_unlock_irqrestore(
1099 &phba->sli4_hba.sgl_list_lock, iflag);
1101 /* Check if TXQ queue needs to be serviced */
1102 if (!list_empty(&pring->txq))
1103 lpfc_worker_wake_up(phba);
1109 * Clean all volatile data fields, preserve iotag and node struct.
1111 memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1112 iocbq->sli4_lxritag = NO_XRI;
1113 iocbq->sli4_xritag = NO_XRI;
1114 iocbq->iocb_flag &= ~(LPFC_IO_NVME | LPFC_IO_NVMET |
1116 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1121 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
1122 * @phba: Pointer to HBA context object.
1123 * @iocbq: Pointer to driver iocb object.
1125 * This function is called with hbalock held to release driver
1126 * iocb object to the iocb pool. The iotag in the iocb object
1127 * does not change for each use of the iocb object. This function
1128 * clears all other fields of the iocb object when it is freed.
1131 __lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1133 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1135 lockdep_assert_held(&phba->hbalock);
1138 * Clean all volatile data fields, preserve iotag and node struct.
1140 memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1141 iocbq->sli4_xritag = NO_XRI;
1142 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1146 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
1147 * @phba: Pointer to HBA context object.
1148 * @iocbq: Pointer to driver iocb object.
1150 * This function is called with hbalock held to release driver
1151 * iocb object to the iocb pool. The iotag in the iocb object
1152 * does not change for each use of the iocb object. This function
1153 * clears all other fields of the iocb object when it is freed.
1156 __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1158 lockdep_assert_held(&phba->hbalock);
1160 phba->__lpfc_sli_release_iocbq(phba, iocbq);
1165 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
1166 * @phba: Pointer to HBA context object.
1167 * @iocbq: Pointer to driver iocb object.
1169 * This function is called with no lock held to release the iocb to
1173 lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1175 unsigned long iflags;
1178 * Clean all volatile data fields, preserve iotag and node struct.
1180 spin_lock_irqsave(&phba->hbalock, iflags);
1181 __lpfc_sli_release_iocbq(phba, iocbq);
1182 spin_unlock_irqrestore(&phba->hbalock, iflags);
1186 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
1187 * @phba: Pointer to HBA context object.
1188 * @iocblist: List of IOCBs.
1189 * @ulpstatus: ULP status in IOCB command field.
1190 * @ulpWord4: ULP word-4 in IOCB command field.
1192 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
1193 * on the list by invoking the complete callback function associated with the
1194 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
1198 lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
1199 uint32_t ulpstatus, uint32_t ulpWord4)
1201 struct lpfc_iocbq *piocb;
1203 while (!list_empty(iocblist)) {
1204 list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
1205 if (!piocb->iocb_cmpl)
1206 lpfc_sli_release_iocbq(phba, piocb);
1208 piocb->iocb.ulpStatus = ulpstatus;
1209 piocb->iocb.un.ulpWord[4] = ulpWord4;
1210 (piocb->iocb_cmpl) (phba, piocb, piocb);
1217 * lpfc_sli_iocb_cmd_type - Get the iocb type
1218 * @iocb_cmnd: iocb command code.
1220 * This function is called by ring event handler function to get the iocb type.
1221 * This function translates the iocb command to an iocb command type used to
1222 * decide the final disposition of each completed IOCB.
1223 * The function returns
1224 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
1225 * LPFC_SOL_IOCB if it is a solicited iocb completion
1226 * LPFC_ABORT_IOCB if it is an abort iocb
1227 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
1229 * The caller is not required to hold any lock.
1231 static lpfc_iocb_type
1232 lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
1234 lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
1236 if (iocb_cmnd > CMD_MAX_IOCB_CMD)
1239 switch (iocb_cmnd) {
1240 case CMD_XMIT_SEQUENCE_CR:
1241 case CMD_XMIT_SEQUENCE_CX:
1242 case CMD_XMIT_BCAST_CN:
1243 case CMD_XMIT_BCAST_CX:
1244 case CMD_ELS_REQUEST_CR:
1245 case CMD_ELS_REQUEST_CX:
1246 case CMD_CREATE_XRI_CR:
1247 case CMD_CREATE_XRI_CX:
1248 case CMD_GET_RPI_CN:
1249 case CMD_XMIT_ELS_RSP_CX:
1250 case CMD_GET_RPI_CR:
1251 case CMD_FCP_IWRITE_CR:
1252 case CMD_FCP_IWRITE_CX:
1253 case CMD_FCP_IREAD_CR:
1254 case CMD_FCP_IREAD_CX:
1255 case CMD_FCP_ICMND_CR:
1256 case CMD_FCP_ICMND_CX:
1257 case CMD_FCP_TSEND_CX:
1258 case CMD_FCP_TRSP_CX:
1259 case CMD_FCP_TRECEIVE_CX:
1260 case CMD_FCP_AUTO_TRSP_CX:
1261 case CMD_ADAPTER_MSG:
1262 case CMD_ADAPTER_DUMP:
1263 case CMD_XMIT_SEQUENCE64_CR:
1264 case CMD_XMIT_SEQUENCE64_CX:
1265 case CMD_XMIT_BCAST64_CN:
1266 case CMD_XMIT_BCAST64_CX:
1267 case CMD_ELS_REQUEST64_CR:
1268 case CMD_ELS_REQUEST64_CX:
1269 case CMD_FCP_IWRITE64_CR:
1270 case CMD_FCP_IWRITE64_CX:
1271 case CMD_FCP_IREAD64_CR:
1272 case CMD_FCP_IREAD64_CX:
1273 case CMD_FCP_ICMND64_CR:
1274 case CMD_FCP_ICMND64_CX:
1275 case CMD_FCP_TSEND64_CX:
1276 case CMD_FCP_TRSP64_CX:
1277 case CMD_FCP_TRECEIVE64_CX:
1278 case CMD_GEN_REQUEST64_CR:
1279 case CMD_GEN_REQUEST64_CX:
1280 case CMD_XMIT_ELS_RSP64_CX:
1281 case DSSCMD_IWRITE64_CR:
1282 case DSSCMD_IWRITE64_CX:
1283 case DSSCMD_IREAD64_CR:
1284 case DSSCMD_IREAD64_CX:
1285 type = LPFC_SOL_IOCB;
1287 case CMD_ABORT_XRI_CN:
1288 case CMD_ABORT_XRI_CX:
1289 case CMD_CLOSE_XRI_CN:
1290 case CMD_CLOSE_XRI_CX:
1291 case CMD_XRI_ABORTED_CX:
1292 case CMD_ABORT_MXRI64_CN:
1293 case CMD_XMIT_BLS_RSP64_CX:
1294 type = LPFC_ABORT_IOCB;
1296 case CMD_RCV_SEQUENCE_CX:
1297 case CMD_RCV_ELS_REQ_CX:
1298 case CMD_RCV_SEQUENCE64_CX:
1299 case CMD_RCV_ELS_REQ64_CX:
1300 case CMD_ASYNC_STATUS:
1301 case CMD_IOCB_RCV_SEQ64_CX:
1302 case CMD_IOCB_RCV_ELS64_CX:
1303 case CMD_IOCB_RCV_CONT64_CX:
1304 case CMD_IOCB_RET_XRI64_CX:
1305 type = LPFC_UNSOL_IOCB;
1307 case CMD_IOCB_XMIT_MSEQ64_CR:
1308 case CMD_IOCB_XMIT_MSEQ64_CX:
1309 case CMD_IOCB_RCV_SEQ_LIST64_CX:
1310 case CMD_IOCB_RCV_ELS_LIST64_CX:
1311 case CMD_IOCB_CLOSE_EXTENDED_CN:
1312 case CMD_IOCB_ABORT_EXTENDED_CN:
1313 case CMD_IOCB_RET_HBQE64_CN:
1314 case CMD_IOCB_FCP_IBIDIR64_CR:
1315 case CMD_IOCB_FCP_IBIDIR64_CX:
1316 case CMD_IOCB_FCP_ITASKMGT64_CX:
1317 case CMD_IOCB_LOGENTRY_CN:
1318 case CMD_IOCB_LOGENTRY_ASYNC_CN:
1319 printk("%s - Unhandled SLI-3 Command x%x\n",
1320 __func__, iocb_cmnd);
1321 type = LPFC_UNKNOWN_IOCB;
1324 type = LPFC_UNKNOWN_IOCB;
1332 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
1333 * @phba: Pointer to HBA context object.
1335 * This function is called from SLI initialization code
1336 * to configure every ring of the HBA's SLI interface. The
1337 * caller is not required to hold any lock. This function issues
1338 * a config_ring mailbox command for each ring.
1339 * This function returns zero if successful else returns a negative
1343 lpfc_sli_ring_map(struct lpfc_hba *phba)
1345 struct lpfc_sli *psli = &phba->sli;
1350 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1354 phba->link_state = LPFC_INIT_MBX_CMDS;
1355 for (i = 0; i < psli->num_rings; i++) {
1356 lpfc_config_ring(phba, i, pmb);
1357 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
1358 if (rc != MBX_SUCCESS) {
1359 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1360 "0446 Adapter failed to init (%d), "
1361 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
1363 rc, pmbox->mbxCommand,
1364 pmbox->mbxStatus, i);
1365 phba->link_state = LPFC_HBA_ERROR;
1370 mempool_free(pmb, phba->mbox_mem_pool);
1375 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
1376 * @phba: Pointer to HBA context object.
1377 * @pring: Pointer to driver SLI ring object.
1378 * @piocb: Pointer to the driver iocb object.
1380 * This function is called with hbalock held. The function adds the
1381 * new iocb to txcmplq of the given ring. This function always returns
1382 * 0. If this function is called for ELS ring, this function checks if
1383 * there is a vport associated with the ELS command. This function also
1384 * starts els_tmofunc timer if this is an ELS command.
1387 lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1388 struct lpfc_iocbq *piocb)
1390 lockdep_assert_held(&phba->hbalock);
1394 list_add_tail(&piocb->list, &pring->txcmplq);
1395 piocb->iocb_flag |= LPFC_IO_ON_TXCMPLQ;
1397 if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
1398 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
1399 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
1400 BUG_ON(!piocb->vport);
1401 if (!(piocb->vport->load_flag & FC_UNLOADING))
1402 mod_timer(&piocb->vport->els_tmofunc,
1404 msecs_to_jiffies(1000 * (phba->fc_ratov << 1)));
1411 * lpfc_sli_ringtx_get - Get first element of the txq
1412 * @phba: Pointer to HBA context object.
1413 * @pring: Pointer to driver SLI ring object.
1415 * This function is called with hbalock held to get next
1416 * iocb in txq of the given ring. If there is any iocb in
1417 * the txq, the function returns first iocb in the list after
1418 * removing the iocb from the list, else it returns NULL.
1421 lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1423 struct lpfc_iocbq *cmd_iocb;
1425 lockdep_assert_held(&phba->hbalock);
1427 list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
1432 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
1433 * @phba: Pointer to HBA context object.
1434 * @pring: Pointer to driver SLI ring object.
1436 * This function is called with hbalock held and the caller must post the
1437 * iocb without releasing the lock. If the caller releases the lock,
1438 * iocb slot returned by the function is not guaranteed to be available.
1439 * The function returns pointer to the next available iocb slot if there
1440 * is available slot in the ring, else it returns NULL.
1441 * If the get index of the ring is ahead of the put index, the function
1442 * will post an error attention event to the worker thread to take the
1443 * HBA to offline state.
1446 lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1448 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
1449 uint32_t max_cmd_idx = pring->sli.sli3.numCiocb;
1451 lockdep_assert_held(&phba->hbalock);
1453 if ((pring->sli.sli3.next_cmdidx == pring->sli.sli3.cmdidx) &&
1454 (++pring->sli.sli3.next_cmdidx >= max_cmd_idx))
1455 pring->sli.sli3.next_cmdidx = 0;
1457 if (unlikely(pring->sli.sli3.local_getidx ==
1458 pring->sli.sli3.next_cmdidx)) {
1460 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
1462 if (unlikely(pring->sli.sli3.local_getidx >= max_cmd_idx)) {
1463 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1464 "0315 Ring %d issue: portCmdGet %d "
1465 "is bigger than cmd ring %d\n",
1467 pring->sli.sli3.local_getidx,
1470 phba->link_state = LPFC_HBA_ERROR;
1472 * All error attention handlers are posted to
1475 phba->work_ha |= HA_ERATT;
1476 phba->work_hs = HS_FFER3;
1478 lpfc_worker_wake_up(phba);
1483 if (pring->sli.sli3.local_getidx == pring->sli.sli3.next_cmdidx)
1487 return lpfc_cmd_iocb(phba, pring);
1491 * lpfc_sli_next_iotag - Get an iotag for the iocb
1492 * @phba: Pointer to HBA context object.
1493 * @iocbq: Pointer to driver iocb object.
1495 * This function gets an iotag for the iocb. If there is no unused iotag and
1496 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
1497 * array and assigns a new iotag.
1498 * The function returns the allocated iotag if successful, else returns zero.
1499 * Zero is not a valid iotag.
1500 * The caller is not required to hold any lock.
1503 lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1505 struct lpfc_iocbq **new_arr;
1506 struct lpfc_iocbq **old_arr;
1508 struct lpfc_sli *psli = &phba->sli;
1511 spin_lock_irq(&phba->hbalock);
1512 iotag = psli->last_iotag;
1513 if(++iotag < psli->iocbq_lookup_len) {
1514 psli->last_iotag = iotag;
1515 psli->iocbq_lookup[iotag] = iocbq;
1516 spin_unlock_irq(&phba->hbalock);
1517 iocbq->iotag = iotag;
1519 } else if (psli->iocbq_lookup_len < (0xffff
1520 - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
1521 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
1522 spin_unlock_irq(&phba->hbalock);
1523 new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *),
1526 spin_lock_irq(&phba->hbalock);
1527 old_arr = psli->iocbq_lookup;
1528 if (new_len <= psli->iocbq_lookup_len) {
1529 /* highly unprobable case */
1531 iotag = psli->last_iotag;
1532 if(++iotag < psli->iocbq_lookup_len) {
1533 psli->last_iotag = iotag;
1534 psli->iocbq_lookup[iotag] = iocbq;
1535 spin_unlock_irq(&phba->hbalock);
1536 iocbq->iotag = iotag;
1539 spin_unlock_irq(&phba->hbalock);
1542 if (psli->iocbq_lookup)
1543 memcpy(new_arr, old_arr,
1544 ((psli->last_iotag + 1) *
1545 sizeof (struct lpfc_iocbq *)));
1546 psli->iocbq_lookup = new_arr;
1547 psli->iocbq_lookup_len = new_len;
1548 psli->last_iotag = iotag;
1549 psli->iocbq_lookup[iotag] = iocbq;
1550 spin_unlock_irq(&phba->hbalock);
1551 iocbq->iotag = iotag;
1556 spin_unlock_irq(&phba->hbalock);
1558 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
1559 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1566 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
1567 * @phba: Pointer to HBA context object.
1568 * @pring: Pointer to driver SLI ring object.
1569 * @iocb: Pointer to iocb slot in the ring.
1570 * @nextiocb: Pointer to driver iocb object which need to be
1571 * posted to firmware.
1573 * This function is called with hbalock held to post a new iocb to
1574 * the firmware. This function copies the new iocb to ring iocb slot and
1575 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1576 * a completion call back for this iocb else the function will free the
1580 lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1581 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
1583 lockdep_assert_held(&phba->hbalock);
1587 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
1590 if (pring->ringno == LPFC_ELS_RING) {
1591 lpfc_debugfs_slow_ring_trc(phba,
1592 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1593 *(((uint32_t *) &nextiocb->iocb) + 4),
1594 *(((uint32_t *) &nextiocb->iocb) + 6),
1595 *(((uint32_t *) &nextiocb->iocb) + 7));
1599 * Issue iocb command to adapter
1601 lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
1603 pring->stats.iocb_cmd++;
1606 * If there is no completion routine to call, we can release the
1607 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1608 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1610 if (nextiocb->iocb_cmpl)
1611 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
1613 __lpfc_sli_release_iocbq(phba, nextiocb);
1616 * Let the HBA know what IOCB slot will be the next one the
1617 * driver will put a command into.
1619 pring->sli.sli3.cmdidx = pring->sli.sli3.next_cmdidx;
1620 writel(pring->sli.sli3.cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
1624 * lpfc_sli_update_full_ring - Update the chip attention register
1625 * @phba: Pointer to HBA context object.
1626 * @pring: Pointer to driver SLI ring object.
1628 * The caller is not required to hold any lock for calling this function.
1629 * This function updates the chip attention bits for the ring to inform firmware
1630 * that there are pending work to be done for this ring and requests an
1631 * interrupt when there is space available in the ring. This function is
1632 * called when the driver is unable to post more iocbs to the ring due
1633 * to unavailability of space in the ring.
1636 lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1638 int ringno = pring->ringno;
1640 pring->flag |= LPFC_CALL_RING_AVAILABLE;
1645 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1646 * The HBA will tell us when an IOCB entry is available.
1648 writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
1649 readl(phba->CAregaddr); /* flush */
1651 pring->stats.iocb_cmd_full++;
1655 * lpfc_sli_update_ring - Update chip attention register
1656 * @phba: Pointer to HBA context object.
1657 * @pring: Pointer to driver SLI ring object.
1659 * This function updates the chip attention register bit for the
1660 * given ring to inform HBA that there is more work to be done
1661 * in this ring. The caller is not required to hold any lock.
1664 lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1666 int ringno = pring->ringno;
1669 * Tell the HBA that there is work to do in this ring.
1671 if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
1673 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
1674 readl(phba->CAregaddr); /* flush */
1679 * lpfc_sli_resume_iocb - Process iocbs in the txq
1680 * @phba: Pointer to HBA context object.
1681 * @pring: Pointer to driver SLI ring object.
1683 * This function is called with hbalock held to post pending iocbs
1684 * in the txq to the firmware. This function is called when driver
1685 * detects space available in the ring.
1688 lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1691 struct lpfc_iocbq *nextiocb;
1693 lockdep_assert_held(&phba->hbalock);
1697 * (a) there is anything on the txq to send
1699 * (c) link attention events can be processed (fcp ring only)
1700 * (d) IOCB processing is not blocked by the outstanding mbox command.
1703 if (lpfc_is_link_up(phba) &&
1704 (!list_empty(&pring->txq)) &&
1705 (pring->ringno != LPFC_FCP_RING ||
1706 phba->sli.sli_flag & LPFC_PROCESS_LA)) {
1708 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
1709 (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
1710 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
1713 lpfc_sli_update_ring(phba, pring);
1715 lpfc_sli_update_full_ring(phba, pring);
1722 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
1723 * @phba: Pointer to HBA context object.
1724 * @hbqno: HBQ number.
1726 * This function is called with hbalock held to get the next
1727 * available slot for the given HBQ. If there is free slot
1728 * available for the HBQ it will return pointer to the next available
1729 * HBQ entry else it will return NULL.
1731 static struct lpfc_hbq_entry *
1732 lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
1734 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1736 lockdep_assert_held(&phba->hbalock);
1738 if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
1739 ++hbqp->next_hbqPutIdx >= hbqp->entry_count)
1740 hbqp->next_hbqPutIdx = 0;
1742 if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
1743 uint32_t raw_index = phba->hbq_get[hbqno];
1744 uint32_t getidx = le32_to_cpu(raw_index);
1746 hbqp->local_hbqGetIdx = getidx;
1748 if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
1749 lpfc_printf_log(phba, KERN_ERR,
1750 LOG_SLI | LOG_VPORT,
1751 "1802 HBQ %d: local_hbqGetIdx "
1752 "%u is > than hbqp->entry_count %u\n",
1753 hbqno, hbqp->local_hbqGetIdx,
1756 phba->link_state = LPFC_HBA_ERROR;
1760 if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
1764 return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
1769 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
1770 * @phba: Pointer to HBA context object.
1772 * This function is called with no lock held to free all the
1773 * hbq buffers while uninitializing the SLI interface. It also
1774 * frees the HBQ buffers returned by the firmware but not yet
1775 * processed by the upper layers.
1778 lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
1780 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
1781 struct hbq_dmabuf *hbq_buf;
1782 unsigned long flags;
1785 hbq_count = lpfc_sli_hbq_count();
1786 /* Return all memory used by all HBQs */
1787 spin_lock_irqsave(&phba->hbalock, flags);
1788 for (i = 0; i < hbq_count; ++i) {
1789 list_for_each_entry_safe(dmabuf, next_dmabuf,
1790 &phba->hbqs[i].hbq_buffer_list, list) {
1791 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1792 list_del(&hbq_buf->dbuf.list);
1793 (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
1795 phba->hbqs[i].buffer_count = 0;
1798 /* Mark the HBQs not in use */
1799 phba->hbq_in_use = 0;
1800 spin_unlock_irqrestore(&phba->hbalock, flags);
1804 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
1805 * @phba: Pointer to HBA context object.
1806 * @hbqno: HBQ number.
1807 * @hbq_buf: Pointer to HBQ buffer.
1809 * This function is called with the hbalock held to post a
1810 * hbq buffer to the firmware. If the function finds an empty
1811 * slot in the HBQ, it will post the buffer. The function will return
1812 * pointer to the hbq entry if it successfully post the buffer
1813 * else it will return NULL.
1816 lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
1817 struct hbq_dmabuf *hbq_buf)
1819 lockdep_assert_held(&phba->hbalock);
1820 return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
1824 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
1825 * @phba: Pointer to HBA context object.
1826 * @hbqno: HBQ number.
1827 * @hbq_buf: Pointer to HBQ buffer.
1829 * This function is called with the hbalock held to post a hbq buffer to the
1830 * firmware. If the function finds an empty slot in the HBQ, it will post the
1831 * buffer and place it on the hbq_buffer_list. The function will return zero if
1832 * it successfully post the buffer else it will return an error.
1835 lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
1836 struct hbq_dmabuf *hbq_buf)
1838 struct lpfc_hbq_entry *hbqe;
1839 dma_addr_t physaddr = hbq_buf->dbuf.phys;
1841 lockdep_assert_held(&phba->hbalock);
1842 /* Get next HBQ entry slot to use */
1843 hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
1845 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1847 hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
1848 hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
1849 hbqe->bde.tus.f.bdeSize = hbq_buf->total_size;
1850 hbqe->bde.tus.f.bdeFlags = 0;
1851 hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
1852 hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
1854 hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
1855 writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
1857 readl(phba->hbq_put + hbqno);
1858 list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
1865 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
1866 * @phba: Pointer to HBA context object.
1867 * @hbqno: HBQ number.
1868 * @hbq_buf: Pointer to HBQ buffer.
1870 * This function is called with the hbalock held to post an RQE to the SLI4
1871 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
1872 * the hbq_buffer_list and return zero, otherwise it will return an error.
1875 lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
1876 struct hbq_dmabuf *hbq_buf)
1879 struct lpfc_rqe hrqe;
1880 struct lpfc_rqe drqe;
1881 struct lpfc_queue *hrq;
1882 struct lpfc_queue *drq;
1884 if (hbqno != LPFC_ELS_HBQ)
1886 hrq = phba->sli4_hba.hdr_rq;
1887 drq = phba->sli4_hba.dat_rq;
1889 lockdep_assert_held(&phba->hbalock);
1890 hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
1891 hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
1892 drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
1893 drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
1894 rc = lpfc_sli4_rq_put(hrq, drq, &hrqe, &drqe);
1897 hbq_buf->tag = (rc | (hbqno << 16));
1898 list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
1902 /* HBQ for ELS and CT traffic. */
1903 static struct lpfc_hbq_init lpfc_els_hbq = {
1908 .ring_mask = (1 << LPFC_ELS_RING),
1915 struct lpfc_hbq_init *lpfc_hbq_defs[] = {
1920 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
1921 * @phba: Pointer to HBA context object.
1922 * @hbqno: HBQ number.
1923 * @count: Number of HBQ buffers to be posted.
1925 * This function is called with no lock held to post more hbq buffers to the
1926 * given HBQ. The function returns the number of HBQ buffers successfully
1930 lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
1932 uint32_t i, posted = 0;
1933 unsigned long flags;
1934 struct hbq_dmabuf *hbq_buffer;
1935 LIST_HEAD(hbq_buf_list);
1936 if (!phba->hbqs[hbqno].hbq_alloc_buffer)
1939 if ((phba->hbqs[hbqno].buffer_count + count) >
1940 lpfc_hbq_defs[hbqno]->entry_count)
1941 count = lpfc_hbq_defs[hbqno]->entry_count -
1942 phba->hbqs[hbqno].buffer_count;
1945 /* Allocate HBQ entries */
1946 for (i = 0; i < count; i++) {
1947 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
1950 list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
1952 /* Check whether HBQ is still in use */
1953 spin_lock_irqsave(&phba->hbalock, flags);
1954 if (!phba->hbq_in_use)
1956 while (!list_empty(&hbq_buf_list)) {
1957 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1959 hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
1961 if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
1962 phba->hbqs[hbqno].buffer_count++;
1965 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1967 spin_unlock_irqrestore(&phba->hbalock, flags);
1970 spin_unlock_irqrestore(&phba->hbalock, flags);
1971 while (!list_empty(&hbq_buf_list)) {
1972 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1974 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1980 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
1981 * @phba: Pointer to HBA context object.
1984 * This function posts more buffers to the HBQ. This function
1985 * is called with no lock held. The function returns the number of HBQ entries
1986 * successfully allocated.
1989 lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
1991 if (phba->sli_rev == LPFC_SLI_REV4)
1994 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1995 lpfc_hbq_defs[qno]->add_count);
1999 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
2000 * @phba: Pointer to HBA context object.
2001 * @qno: HBQ queue number.
2003 * This function is called from SLI initialization code path with
2004 * no lock held to post initial HBQ buffers to firmware. The
2005 * function returns the number of HBQ entries successfully allocated.
2008 lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
2010 if (phba->sli_rev == LPFC_SLI_REV4)
2011 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
2012 lpfc_hbq_defs[qno]->entry_count);
2014 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
2015 lpfc_hbq_defs[qno]->init_count);
2019 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
2020 * @phba: Pointer to HBA context object.
2021 * @hbqno: HBQ number.
2023 * This function removes the first hbq buffer on an hbq list and returns a
2024 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
2026 static struct hbq_dmabuf *
2027 lpfc_sli_hbqbuf_get(struct list_head *rb_list)
2029 struct lpfc_dmabuf *d_buf;
2031 list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
2034 return container_of(d_buf, struct hbq_dmabuf, dbuf);
2038 * lpfc_sli_rqbuf_get - Remove the first dma buffer off of an RQ list
2039 * @phba: Pointer to HBA context object.
2040 * @hbqno: HBQ number.
2042 * This function removes the first RQ buffer on an RQ buffer list and returns a
2043 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
2045 static struct rqb_dmabuf *
2046 lpfc_sli_rqbuf_get(struct lpfc_hba *phba, struct lpfc_queue *hrq)
2048 struct lpfc_dmabuf *h_buf;
2049 struct lpfc_rqb *rqbp;
2052 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
2053 struct lpfc_dmabuf, list);
2056 rqbp->buffer_count--;
2057 return container_of(h_buf, struct rqb_dmabuf, hbuf);
2061 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
2062 * @phba: Pointer to HBA context object.
2063 * @tag: Tag of the hbq buffer.
2065 * This function searches for the hbq buffer associated with the given tag in
2066 * the hbq buffer list. If it finds the hbq buffer, it returns the hbq_buffer
2067 * otherwise it returns NULL.
2069 static struct hbq_dmabuf *
2070 lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
2072 struct lpfc_dmabuf *d_buf;
2073 struct hbq_dmabuf *hbq_buf;
2077 if (hbqno >= LPFC_MAX_HBQS)
2080 spin_lock_irq(&phba->hbalock);
2081 list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
2082 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
2083 if (hbq_buf->tag == tag) {
2084 spin_unlock_irq(&phba->hbalock);
2088 spin_unlock_irq(&phba->hbalock);
2089 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT,
2090 "1803 Bad hbq tag. Data: x%x x%x\n",
2091 tag, phba->hbqs[tag >> 16].buffer_count);
2096 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
2097 * @phba: Pointer to HBA context object.
2098 * @hbq_buffer: Pointer to HBQ buffer.
2100 * This function is called with hbalock. This function gives back
2101 * the hbq buffer to firmware. If the HBQ does not have space to
2102 * post the buffer, it will free the buffer.
2105 lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
2110 hbqno = hbq_buffer->tag >> 16;
2111 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
2112 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
2117 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
2118 * @mbxCommand: mailbox command code.
2120 * This function is called by the mailbox event handler function to verify
2121 * that the completed mailbox command is a legitimate mailbox command. If the
2122 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
2123 * and the mailbox event handler will take the HBA offline.
2126 lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
2130 switch (mbxCommand) {
2134 case MBX_WRITE_VPARMS:
2135 case MBX_RUN_BIU_DIAG:
2138 case MBX_CONFIG_LINK:
2139 case MBX_CONFIG_RING:
2140 case MBX_RESET_RING:
2141 case MBX_READ_CONFIG:
2142 case MBX_READ_RCONFIG:
2143 case MBX_READ_SPARM:
2144 case MBX_READ_STATUS:
2148 case MBX_READ_LNK_STAT:
2150 case MBX_UNREG_LOGIN:
2152 case MBX_DUMP_MEMORY:
2153 case MBX_DUMP_CONTEXT:
2156 case MBX_UPDATE_CFG:
2158 case MBX_DEL_LD_ENTRY:
2159 case MBX_RUN_PROGRAM:
2161 case MBX_SET_VARIABLE:
2162 case MBX_UNREG_D_ID:
2163 case MBX_KILL_BOARD:
2164 case MBX_CONFIG_FARP:
2167 case MBX_RUN_BIU_DIAG64:
2168 case MBX_CONFIG_PORT:
2169 case MBX_READ_SPARM64:
2170 case MBX_READ_RPI64:
2171 case MBX_REG_LOGIN64:
2172 case MBX_READ_TOPOLOGY:
2175 case MBX_LOAD_EXP_ROM:
2176 case MBX_ASYNCEVT_ENABLE:
2180 case MBX_PORT_CAPABILITIES:
2181 case MBX_PORT_IOV_CONTROL:
2182 case MBX_SLI4_CONFIG:
2183 case MBX_SLI4_REQ_FTRS:
2185 case MBX_UNREG_FCFI:
2190 case MBX_RESUME_RPI:
2191 case MBX_READ_EVENT_LOG_STATUS:
2192 case MBX_READ_EVENT_LOG:
2193 case MBX_SECURITY_MGMT:
2195 case MBX_ACCESS_VDATA:
2206 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
2207 * @phba: Pointer to HBA context object.
2208 * @pmboxq: Pointer to mailbox command.
2210 * This is completion handler function for mailbox commands issued from
2211 * lpfc_sli_issue_mbox_wait function. This function is called by the
2212 * mailbox event handler function with no lock held. This function
2213 * will wake up thread waiting on the wait queue pointed by context1
2217 lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
2219 wait_queue_head_t *pdone_q;
2220 unsigned long drvr_flag;
2223 * If pdone_q is empty, the driver thread gave up waiting and
2224 * continued running.
2226 pmboxq->mbox_flag |= LPFC_MBX_WAKE;
2227 spin_lock_irqsave(&phba->hbalock, drvr_flag);
2228 pdone_q = (wait_queue_head_t *) pmboxq->context1;
2230 wake_up_interruptible(pdone_q);
2231 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
2237 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
2238 * @phba: Pointer to HBA context object.
2239 * @pmb: Pointer to mailbox object.
2241 * This function is the default mailbox completion handler. It
2242 * frees the memory resources associated with the completed mailbox
2243 * command. If the completed command is a REG_LOGIN mailbox command,
2244 * this function will issue a UREG_LOGIN to re-claim the RPI.
2247 lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2249 struct lpfc_vport *vport = pmb->vport;
2250 struct lpfc_dmabuf *mp;
2251 struct lpfc_nodelist *ndlp;
2252 struct Scsi_Host *shost;
2256 mp = (struct lpfc_dmabuf *) (pmb->context1);
2259 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2264 * If a REG_LOGIN succeeded after node is destroyed or node
2265 * is in re-discovery driver need to cleanup the RPI.
2267 if (!(phba->pport->load_flag & FC_UNLOADING) &&
2268 pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
2269 !pmb->u.mb.mbxStatus) {
2270 rpi = pmb->u.mb.un.varWords[0];
2271 vpi = pmb->u.mb.un.varRegLogin.vpi;
2272 lpfc_unreg_login(phba, vpi, rpi, pmb);
2274 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2275 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2276 if (rc != MBX_NOT_FINISHED)
2280 if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) &&
2281 !(phba->pport->load_flag & FC_UNLOADING) &&
2282 !pmb->u.mb.mbxStatus) {
2283 shost = lpfc_shost_from_vport(vport);
2284 spin_lock_irq(shost->host_lock);
2285 vport->vpi_state |= LPFC_VPI_REGISTERED;
2286 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
2287 spin_unlock_irq(shost->host_lock);
2290 if (pmb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
2291 ndlp = (struct lpfc_nodelist *)pmb->context2;
2293 pmb->context2 = NULL;
2296 /* Check security permission status on INIT_LINK mailbox command */
2297 if ((pmb->u.mb.mbxCommand == MBX_INIT_LINK) &&
2298 (pmb->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
2299 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2300 "2860 SLI authentication is required "
2301 "for INIT_LINK but has not done yet\n");
2303 if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
2304 lpfc_sli4_mbox_cmd_free(phba, pmb);
2306 mempool_free(pmb, phba->mbox_mem_pool);
2309 * lpfc_sli4_unreg_rpi_cmpl_clr - mailbox completion handler
2310 * @phba: Pointer to HBA context object.
2311 * @pmb: Pointer to mailbox object.
2313 * This function is the unreg rpi mailbox completion handler. It
2314 * frees the memory resources associated with the completed mailbox
2315 * command. An additional refrenece is put on the ndlp to prevent
2316 * lpfc_nlp_release from freeing the rpi bit in the bitmask before
2317 * the unreg mailbox command completes, this routine puts the
2322 lpfc_sli4_unreg_rpi_cmpl_clr(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2324 struct lpfc_vport *vport = pmb->vport;
2325 struct lpfc_nodelist *ndlp;
2327 ndlp = pmb->context1;
2328 if (pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) {
2329 if (phba->sli_rev == LPFC_SLI_REV4 &&
2330 (bf_get(lpfc_sli_intf_if_type,
2331 &phba->sli4_hba.sli_intf) ==
2332 LPFC_SLI_INTF_IF_TYPE_2)) {
2334 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
2335 "0010 UNREG_LOGIN vpi:%x "
2336 "rpi:%x DID:%x map:%x %p\n",
2337 vport->vpi, ndlp->nlp_rpi,
2339 ndlp->nlp_usg_map, ndlp);
2340 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
2346 mempool_free(pmb, phba->mbox_mem_pool);
2350 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
2351 * @phba: Pointer to HBA context object.
2353 * This function is called with no lock held. This function processes all
2354 * the completed mailbox commands and gives it to upper layers. The interrupt
2355 * service routine processes mailbox completion interrupt and adds completed
2356 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
2357 * Worker thread call lpfc_sli_handle_mb_event, which will return the
2358 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
2359 * function returns the mailbox commands to the upper layer by calling the
2360 * completion handler function of each mailbox.
2363 lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
2370 phba->sli.slistat.mbox_event++;
2372 /* Get all completed mailboxe buffers into the cmplq */
2373 spin_lock_irq(&phba->hbalock);
2374 list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
2375 spin_unlock_irq(&phba->hbalock);
2377 /* Get a Mailbox buffer to setup mailbox commands for callback */
2379 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
2385 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
2387 lpfc_debugfs_disc_trc(pmb->vport,
2388 LPFC_DISC_TRC_MBOX_VPORT,
2389 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
2390 (uint32_t)pmbox->mbxCommand,
2391 pmbox->un.varWords[0],
2392 pmbox->un.varWords[1]);
2395 lpfc_debugfs_disc_trc(phba->pport,
2397 "MBOX cmpl: cmd:x%x mb:x%x x%x",
2398 (uint32_t)pmbox->mbxCommand,
2399 pmbox->un.varWords[0],
2400 pmbox->un.varWords[1]);
2405 * It is a fatal error if unknown mbox command completion.
2407 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
2409 /* Unknown mailbox command compl */
2410 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2411 "(%d):0323 Unknown Mailbox command "
2412 "x%x (x%x/x%x) Cmpl\n",
2413 pmb->vport ? pmb->vport->vpi : 0,
2415 lpfc_sli_config_mbox_subsys_get(phba,
2417 lpfc_sli_config_mbox_opcode_get(phba,
2419 phba->link_state = LPFC_HBA_ERROR;
2420 phba->work_hs = HS_FFER3;
2421 lpfc_handle_eratt(phba);
2425 if (pmbox->mbxStatus) {
2426 phba->sli.slistat.mbox_stat_err++;
2427 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
2428 /* Mbox cmd cmpl error - RETRYing */
2429 lpfc_printf_log(phba, KERN_INFO,
2431 "(%d):0305 Mbox cmd cmpl "
2432 "error - RETRYing Data: x%x "
2433 "(x%x/x%x) x%x x%x x%x\n",
2434 pmb->vport ? pmb->vport->vpi : 0,
2436 lpfc_sli_config_mbox_subsys_get(phba,
2438 lpfc_sli_config_mbox_opcode_get(phba,
2441 pmbox->un.varWords[0],
2442 pmb->vport->port_state);
2443 pmbox->mbxStatus = 0;
2444 pmbox->mbxOwner = OWN_HOST;
2445 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2446 if (rc != MBX_NOT_FINISHED)
2451 /* Mailbox cmd <cmd> Cmpl <cmpl> */
2452 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
2453 "(%d):0307 Mailbox cmd x%x (x%x/x%x) Cmpl x%p "
2454 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
2456 pmb->vport ? pmb->vport->vpi : 0,
2458 lpfc_sli_config_mbox_subsys_get(phba, pmb),
2459 lpfc_sli_config_mbox_opcode_get(phba, pmb),
2461 *((uint32_t *) pmbox),
2462 pmbox->un.varWords[0],
2463 pmbox->un.varWords[1],
2464 pmbox->un.varWords[2],
2465 pmbox->un.varWords[3],
2466 pmbox->un.varWords[4],
2467 pmbox->un.varWords[5],
2468 pmbox->un.varWords[6],
2469 pmbox->un.varWords[7],
2470 pmbox->un.varWords[8],
2471 pmbox->un.varWords[9],
2472 pmbox->un.varWords[10]);
2475 pmb->mbox_cmpl(phba,pmb);
2481 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
2482 * @phba: Pointer to HBA context object.
2483 * @pring: Pointer to driver SLI ring object.
2486 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
2487 * is set in the tag the buffer is posted for a particular exchange,
2488 * the function will return the buffer without replacing the buffer.
2489 * If the buffer is for unsolicited ELS or CT traffic, this function
2490 * returns the buffer and also posts another buffer to the firmware.
2492 static struct lpfc_dmabuf *
2493 lpfc_sli_get_buff(struct lpfc_hba *phba,
2494 struct lpfc_sli_ring *pring,
2497 struct hbq_dmabuf *hbq_entry;
2499 if (tag & QUE_BUFTAG_BIT)
2500 return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
2501 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
2504 return &hbq_entry->dbuf;
2508 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
2509 * @phba: Pointer to HBA context object.
2510 * @pring: Pointer to driver SLI ring object.
2511 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
2512 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
2513 * @fch_type: the type for the first frame of the sequence.
2515 * This function is called with no lock held. This function uses the r_ctl and
2516 * type of the received sequence to find the correct callback function to call
2517 * to process the sequence.
2520 lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2521 struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
2528 lpfc_nvmet_unsol_ls_event(phba, pring, saveq);
2534 /* unSolicited Responses */
2535 if (pring->prt[0].profile) {
2536 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
2537 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
2541 /* We must search, based on rctl / type
2542 for the right routine */
2543 for (i = 0; i < pring->num_mask; i++) {
2544 if ((pring->prt[i].rctl == fch_r_ctl) &&
2545 (pring->prt[i].type == fch_type)) {
2546 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
2547 (pring->prt[i].lpfc_sli_rcv_unsol_event)
2548 (phba, pring, saveq);
2556 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
2557 * @phba: Pointer to HBA context object.
2558 * @pring: Pointer to driver SLI ring object.
2559 * @saveq: Pointer to the unsolicited iocb.
2561 * This function is called with no lock held by the ring event handler
2562 * when there is an unsolicited iocb posted to the response ring by the
2563 * firmware. This function gets the buffer associated with the iocbs
2564 * and calls the event handler for the ring. This function handles both
2565 * qring buffers and hbq buffers.
2566 * When the function returns 1 the caller can free the iocb object otherwise
2567 * upper layer functions will free the iocb objects.
2570 lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2571 struct lpfc_iocbq *saveq)
2575 uint32_t Rctl, Type;
2576 struct lpfc_iocbq *iocbq;
2577 struct lpfc_dmabuf *dmzbuf;
2579 irsp = &(saveq->iocb);
2581 if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
2582 if (pring->lpfc_sli_rcv_async_status)
2583 pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
2585 lpfc_printf_log(phba,
2588 "0316 Ring %d handler: unexpected "
2589 "ASYNC_STATUS iocb received evt_code "
2592 irsp->un.asyncstat.evt_code);
2596 if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
2597 (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
2598 if (irsp->ulpBdeCount > 0) {
2599 dmzbuf = lpfc_sli_get_buff(phba, pring,
2600 irsp->un.ulpWord[3]);
2601 lpfc_in_buf_free(phba, dmzbuf);
2604 if (irsp->ulpBdeCount > 1) {
2605 dmzbuf = lpfc_sli_get_buff(phba, pring,
2606 irsp->unsli3.sli3Words[3]);
2607 lpfc_in_buf_free(phba, dmzbuf);
2610 if (irsp->ulpBdeCount > 2) {
2611 dmzbuf = lpfc_sli_get_buff(phba, pring,
2612 irsp->unsli3.sli3Words[7]);
2613 lpfc_in_buf_free(phba, dmzbuf);
2619 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
2620 if (irsp->ulpBdeCount != 0) {
2621 saveq->context2 = lpfc_sli_get_buff(phba, pring,
2622 irsp->un.ulpWord[3]);
2623 if (!saveq->context2)
2624 lpfc_printf_log(phba,
2627 "0341 Ring %d Cannot find buffer for "
2628 "an unsolicited iocb. tag 0x%x\n",
2630 irsp->un.ulpWord[3]);
2632 if (irsp->ulpBdeCount == 2) {
2633 saveq->context3 = lpfc_sli_get_buff(phba, pring,
2634 irsp->unsli3.sli3Words[7]);
2635 if (!saveq->context3)
2636 lpfc_printf_log(phba,
2639 "0342 Ring %d Cannot find buffer for an"
2640 " unsolicited iocb. tag 0x%x\n",
2642 irsp->unsli3.sli3Words[7]);
2644 list_for_each_entry(iocbq, &saveq->list, list) {
2645 irsp = &(iocbq->iocb);
2646 if (irsp->ulpBdeCount != 0) {
2647 iocbq->context2 = lpfc_sli_get_buff(phba, pring,
2648 irsp->un.ulpWord[3]);
2649 if (!iocbq->context2)
2650 lpfc_printf_log(phba,
2653 "0343 Ring %d Cannot find "
2654 "buffer for an unsolicited iocb"
2655 ". tag 0x%x\n", pring->ringno,
2656 irsp->un.ulpWord[3]);
2658 if (irsp->ulpBdeCount == 2) {
2659 iocbq->context3 = lpfc_sli_get_buff(phba, pring,
2660 irsp->unsli3.sli3Words[7]);
2661 if (!iocbq->context3)
2662 lpfc_printf_log(phba,
2665 "0344 Ring %d Cannot find "
2666 "buffer for an unsolicited "
2669 irsp->unsli3.sli3Words[7]);
2673 if (irsp->ulpBdeCount != 0 &&
2674 (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
2675 irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
2678 /* search continue save q for same XRI */
2679 list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
2680 if (iocbq->iocb.unsli3.rcvsli3.ox_id ==
2681 saveq->iocb.unsli3.rcvsli3.ox_id) {
2682 list_add_tail(&saveq->list, &iocbq->list);
2688 list_add_tail(&saveq->clist,
2689 &pring->iocb_continue_saveq);
2690 if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
2691 list_del_init(&iocbq->clist);
2693 irsp = &(saveq->iocb);
2697 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
2698 (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
2699 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
2700 Rctl = FC_RCTL_ELS_REQ;
2703 w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
2704 Rctl = w5p->hcsw.Rctl;
2705 Type = w5p->hcsw.Type;
2707 /* Firmware Workaround */
2708 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
2709 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
2710 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
2711 Rctl = FC_RCTL_ELS_REQ;
2713 w5p->hcsw.Rctl = Rctl;
2714 w5p->hcsw.Type = Type;
2718 if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
2719 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2720 "0313 Ring %d handler: unexpected Rctl x%x "
2721 "Type x%x received\n",
2722 pring->ringno, Rctl, Type);
2728 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
2729 * @phba: Pointer to HBA context object.
2730 * @pring: Pointer to driver SLI ring object.
2731 * @prspiocb: Pointer to response iocb object.
2733 * This function looks up the iocb_lookup table to get the command iocb
2734 * corresponding to the given response iocb using the iotag of the
2735 * response iocb. This function is called with the hbalock held.
2736 * This function returns the command iocb object if it finds the command
2737 * iocb else returns NULL.
2739 static struct lpfc_iocbq *
2740 lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
2741 struct lpfc_sli_ring *pring,
2742 struct lpfc_iocbq *prspiocb)
2744 struct lpfc_iocbq *cmd_iocb = NULL;
2746 lockdep_assert_held(&phba->hbalock);
2748 iotag = prspiocb->iocb.ulpIoTag;
2750 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2751 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2752 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
2753 /* remove from txcmpl queue list */
2754 list_del_init(&cmd_iocb->list);
2755 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
2760 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2761 "0317 iotag x%x is out of "
2762 "range: max iotag x%x wd0 x%x\n",
2763 iotag, phba->sli.last_iotag,
2764 *(((uint32_t *) &prspiocb->iocb) + 7));
2769 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2770 * @phba: Pointer to HBA context object.
2771 * @pring: Pointer to driver SLI ring object.
2774 * This function looks up the iocb_lookup table to get the command iocb
2775 * corresponding to the given iotag. This function is called with the
2777 * This function returns the command iocb object if it finds the command
2778 * iocb else returns NULL.
2780 static struct lpfc_iocbq *
2781 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
2782 struct lpfc_sli_ring *pring, uint16_t iotag)
2784 struct lpfc_iocbq *cmd_iocb = NULL;
2786 lockdep_assert_held(&phba->hbalock);
2787 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2788 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2789 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
2790 /* remove from txcmpl queue list */
2791 list_del_init(&cmd_iocb->list);
2792 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
2797 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2798 "0372 iotag x%x lookup error: max iotag (x%x) "
2800 iotag, phba->sli.last_iotag,
2801 cmd_iocb ? cmd_iocb->iocb_flag : 0xffff);
2806 * lpfc_sli_process_sol_iocb - process solicited iocb completion
2807 * @phba: Pointer to HBA context object.
2808 * @pring: Pointer to driver SLI ring object.
2809 * @saveq: Pointer to the response iocb to be processed.
2811 * This function is called by the ring event handler for non-fcp
2812 * rings when there is a new response iocb in the response ring.
2813 * The caller is not required to hold any locks. This function
2814 * gets the command iocb associated with the response iocb and
2815 * calls the completion handler for the command iocb. If there
2816 * is no completion handler, the function will free the resources
2817 * associated with command iocb. If the response iocb is for
2818 * an already aborted command iocb, the status of the completion
2819 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
2820 * This function always returns 1.
2823 lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2824 struct lpfc_iocbq *saveq)
2826 struct lpfc_iocbq *cmdiocbp;
2828 unsigned long iflag;
2830 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
2831 spin_lock_irqsave(&phba->hbalock, iflag);
2832 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
2833 spin_unlock_irqrestore(&phba->hbalock, iflag);
2836 if (cmdiocbp->iocb_cmpl) {
2838 * If an ELS command failed send an event to mgmt
2841 if (saveq->iocb.ulpStatus &&
2842 (pring->ringno == LPFC_ELS_RING) &&
2843 (cmdiocbp->iocb.ulpCommand ==
2844 CMD_ELS_REQUEST64_CR))
2845 lpfc_send_els_failure_event(phba,
2849 * Post all ELS completions to the worker thread.
2850 * All other are passed to the completion callback.
2852 if (pring->ringno == LPFC_ELS_RING) {
2853 if ((phba->sli_rev < LPFC_SLI_REV4) &&
2854 (cmdiocbp->iocb_flag &
2855 LPFC_DRIVER_ABORTED)) {
2856 spin_lock_irqsave(&phba->hbalock,
2858 cmdiocbp->iocb_flag &=
2859 ~LPFC_DRIVER_ABORTED;
2860 spin_unlock_irqrestore(&phba->hbalock,
2862 saveq->iocb.ulpStatus =
2863 IOSTAT_LOCAL_REJECT;
2864 saveq->iocb.un.ulpWord[4] =
2867 /* Firmware could still be in progress
2868 * of DMAing payload, so don't free data
2869 * buffer till after a hbeat.
2871 spin_lock_irqsave(&phba->hbalock,
2873 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
2874 spin_unlock_irqrestore(&phba->hbalock,
2877 if (phba->sli_rev == LPFC_SLI_REV4) {
2878 if (saveq->iocb_flag &
2879 LPFC_EXCHANGE_BUSY) {
2880 /* Set cmdiocb flag for the
2881 * exchange busy so sgl (xri)
2882 * will not be released until
2883 * the abort xri is received
2887 &phba->hbalock, iflag);
2888 cmdiocbp->iocb_flag |=
2890 spin_unlock_irqrestore(
2891 &phba->hbalock, iflag);
2893 if (cmdiocbp->iocb_flag &
2894 LPFC_DRIVER_ABORTED) {
2896 * Clear LPFC_DRIVER_ABORTED
2897 * bit in case it was driver
2901 &phba->hbalock, iflag);
2902 cmdiocbp->iocb_flag &=
2903 ~LPFC_DRIVER_ABORTED;
2904 spin_unlock_irqrestore(
2905 &phba->hbalock, iflag);
2906 cmdiocbp->iocb.ulpStatus =
2907 IOSTAT_LOCAL_REJECT;
2908 cmdiocbp->iocb.un.ulpWord[4] =
2909 IOERR_ABORT_REQUESTED;
2911 * For SLI4, irsiocb contains
2912 * NO_XRI in sli_xritag, it
2913 * shall not affect releasing
2914 * sgl (xri) process.
2916 saveq->iocb.ulpStatus =
2917 IOSTAT_LOCAL_REJECT;
2918 saveq->iocb.un.ulpWord[4] =
2921 &phba->hbalock, iflag);
2923 LPFC_DELAY_MEM_FREE;
2924 spin_unlock_irqrestore(
2925 &phba->hbalock, iflag);
2929 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
2931 lpfc_sli_release_iocbq(phba, cmdiocbp);
2934 * Unknown initiating command based on the response iotag.
2935 * This could be the case on the ELS ring because of
2938 if (pring->ringno != LPFC_ELS_RING) {
2940 * Ring <ringno> handler: unexpected completion IoTag
2943 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2944 "0322 Ring %d handler: "
2945 "unexpected completion IoTag x%x "
2946 "Data: x%x x%x x%x x%x\n",
2948 saveq->iocb.ulpIoTag,
2949 saveq->iocb.ulpStatus,
2950 saveq->iocb.un.ulpWord[4],
2951 saveq->iocb.ulpCommand,
2952 saveq->iocb.ulpContext);
2960 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
2961 * @phba: Pointer to HBA context object.
2962 * @pring: Pointer to driver SLI ring object.
2964 * This function is called from the iocb ring event handlers when
2965 * put pointer is ahead of the get pointer for a ring. This function signal
2966 * an error attention condition to the worker thread and the worker
2967 * thread will transition the HBA to offline state.
2970 lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
2972 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2974 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
2975 * rsp ring <portRspMax>
2977 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2978 "0312 Ring %d handler: portRspPut %d "
2979 "is bigger than rsp ring %d\n",
2980 pring->ringno, le32_to_cpu(pgp->rspPutInx),
2981 pring->sli.sli3.numRiocb);
2983 phba->link_state = LPFC_HBA_ERROR;
2986 * All error attention handlers are posted to
2989 phba->work_ha |= HA_ERATT;
2990 phba->work_hs = HS_FFER3;
2992 lpfc_worker_wake_up(phba);
2998 * lpfc_poll_eratt - Error attention polling timer timeout handler
2999 * @ptr: Pointer to address of HBA context object.
3001 * This function is invoked by the Error Attention polling timer when the
3002 * timer times out. It will check the SLI Error Attention register for
3003 * possible attention events. If so, it will post an Error Attention event
3004 * and wake up worker thread to process it. Otherwise, it will set up the
3005 * Error Attention polling timer for the next poll.
3007 void lpfc_poll_eratt(unsigned long ptr)
3009 struct lpfc_hba *phba;
3011 uint64_t sli_intr, cnt;
3013 phba = (struct lpfc_hba *)ptr;
3015 /* Here we will also keep track of interrupts per sec of the hba */
3016 sli_intr = phba->sli.slistat.sli_intr;
3018 if (phba->sli.slistat.sli_prev_intr > sli_intr)
3019 cnt = (((uint64_t)(-1) - phba->sli.slistat.sli_prev_intr) +
3022 cnt = (sli_intr - phba->sli.slistat.sli_prev_intr);
3024 /* 64-bit integer division not supported on 32-bit x86 - use do_div */
3025 do_div(cnt, phba->eratt_poll_interval);
3026 phba->sli.slistat.sli_ips = cnt;
3028 phba->sli.slistat.sli_prev_intr = sli_intr;
3030 /* Check chip HA register for error event */
3031 eratt = lpfc_sli_check_eratt(phba);
3034 /* Tell the worker thread there is work to do */
3035 lpfc_worker_wake_up(phba);
3037 /* Restart the timer for next eratt poll */
3038 mod_timer(&phba->eratt_poll,
3040 msecs_to_jiffies(1000 * phba->eratt_poll_interval));
3046 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
3047 * @phba: Pointer to HBA context object.
3048 * @pring: Pointer to driver SLI ring object.
3049 * @mask: Host attention register mask for this ring.
3051 * This function is called from the interrupt context when there is a ring
3052 * event for the fcp ring. The caller does not hold any lock.
3053 * The function processes each response iocb in the response ring until it
3054 * finds an iocb with LE bit set and chains all the iocbs up to the iocb with
3055 * LE bit set. The function will call the completion handler of the command iocb
3056 * if the response iocb indicates a completion for a command iocb or it is
3057 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
3058 * function if this is an unsolicited iocb.
3059 * This routine presumes LPFC_FCP_RING handling and doesn't bother
3060 * to check it explicitly.
3063 lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
3064 struct lpfc_sli_ring *pring, uint32_t mask)
3066 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
3067 IOCB_t *irsp = NULL;
3068 IOCB_t *entry = NULL;
3069 struct lpfc_iocbq *cmdiocbq = NULL;
3070 struct lpfc_iocbq rspiocbq;
3072 uint32_t portRspPut, portRspMax;
3074 lpfc_iocb_type type;
3075 unsigned long iflag;
3076 uint32_t rsp_cmpl = 0;
3078 spin_lock_irqsave(&phba->hbalock, iflag);
3079 pring->stats.iocb_event++;
3082 * The next available response entry should never exceed the maximum
3083 * entries. If it does, treat it as an adapter hardware error.
3085 portRspMax = pring->sli.sli3.numRiocb;
3086 portRspPut = le32_to_cpu(pgp->rspPutInx);
3087 if (unlikely(portRspPut >= portRspMax)) {
3088 lpfc_sli_rsp_pointers_error(phba, pring);
3089 spin_unlock_irqrestore(&phba->hbalock, iflag);
3092 if (phba->fcp_ring_in_use) {
3093 spin_unlock_irqrestore(&phba->hbalock, iflag);
3096 phba->fcp_ring_in_use = 1;
3099 while (pring->sli.sli3.rspidx != portRspPut) {
3101 * Fetch an entry off the ring and copy it into a local data
3102 * structure. The copy involves a byte-swap since the
3103 * network byte order and pci byte orders are different.
3105 entry = lpfc_resp_iocb(phba, pring);
3106 phba->last_completion_time = jiffies;
3108 if (++pring->sli.sli3.rspidx >= portRspMax)
3109 pring->sli.sli3.rspidx = 0;
3111 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
3112 (uint32_t *) &rspiocbq.iocb,
3113 phba->iocb_rsp_size);
3114 INIT_LIST_HEAD(&(rspiocbq.list));
3115 irsp = &rspiocbq.iocb;
3117 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
3118 pring->stats.iocb_rsp++;
3121 if (unlikely(irsp->ulpStatus)) {
3123 * If resource errors reported from HBA, reduce
3124 * queuedepths of the SCSI device.
3126 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3127 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3128 IOERR_NO_RESOURCES)) {
3129 spin_unlock_irqrestore(&phba->hbalock, iflag);
3130 phba->lpfc_rampdown_queue_depth(phba);
3131 spin_lock_irqsave(&phba->hbalock, iflag);
3134 /* Rsp ring <ringno> error: IOCB */
3135 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3136 "0336 Rsp Ring %d error: IOCB Data: "
3137 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
3139 irsp->un.ulpWord[0],
3140 irsp->un.ulpWord[1],
3141 irsp->un.ulpWord[2],
3142 irsp->un.ulpWord[3],
3143 irsp->un.ulpWord[4],
3144 irsp->un.ulpWord[5],
3145 *(uint32_t *)&irsp->un1,
3146 *((uint32_t *)&irsp->un1 + 1));
3150 case LPFC_ABORT_IOCB:
3153 * Idle exchange closed via ABTS from port. No iocb
3154 * resources need to be recovered.
3156 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
3157 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3158 "0333 IOCB cmd 0x%x"
3159 " processed. Skipping"
3165 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
3167 if (unlikely(!cmdiocbq))
3169 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED)
3170 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
3171 if (cmdiocbq->iocb_cmpl) {
3172 spin_unlock_irqrestore(&phba->hbalock, iflag);
3173 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
3175 spin_lock_irqsave(&phba->hbalock, iflag);
3178 case LPFC_UNSOL_IOCB:
3179 spin_unlock_irqrestore(&phba->hbalock, iflag);
3180 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
3181 spin_lock_irqsave(&phba->hbalock, iflag);
3184 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3185 char adaptermsg[LPFC_MAX_ADPTMSG];
3186 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3187 memcpy(&adaptermsg[0], (uint8_t *) irsp,
3189 dev_warn(&((phba->pcidev)->dev),
3191 phba->brd_no, adaptermsg);
3193 /* Unknown IOCB command */
3194 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3195 "0334 Unknown IOCB command "
3196 "Data: x%x, x%x x%x x%x x%x\n",
3197 type, irsp->ulpCommand,
3206 * The response IOCB has been processed. Update the ring
3207 * pointer in SLIM. If the port response put pointer has not
3208 * been updated, sync the pgp->rspPutInx and fetch the new port
3209 * response put pointer.
3211 writel(pring->sli.sli3.rspidx,
3212 &phba->host_gp[pring->ringno].rspGetInx);
3214 if (pring->sli.sli3.rspidx == portRspPut)
3215 portRspPut = le32_to_cpu(pgp->rspPutInx);
3218 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
3219 pring->stats.iocb_rsp_full++;
3220 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3221 writel(status, phba->CAregaddr);
3222 readl(phba->CAregaddr);
3224 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3225 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3226 pring->stats.iocb_cmd_empty++;
3228 /* Force update of the local copy of cmdGetInx */
3229 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3230 lpfc_sli_resume_iocb(phba, pring);
3232 if ((pring->lpfc_sli_cmd_available))
3233 (pring->lpfc_sli_cmd_available) (phba, pring);
3237 phba->fcp_ring_in_use = 0;
3238 spin_unlock_irqrestore(&phba->hbalock, iflag);
3243 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
3244 * @phba: Pointer to HBA context object.
3245 * @pring: Pointer to driver SLI ring object.
3246 * @rspiocbp: Pointer to driver response IOCB object.
3248 * This function is called from the worker thread when there is a slow-path
3249 * response IOCB to process. This function chains all the response iocbs until
3250 * seeing the iocb with the LE bit set. The function will call
3251 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
3252 * completion of a command iocb. The function will call the
3253 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
3254 * The function frees the resources or calls the completion handler if this
3255 * iocb is an abort completion. The function returns NULL when the response
3256 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
3257 * this function shall chain the iocb on to the iocb_continueq and return the
3258 * response iocb passed in.
3260 static struct lpfc_iocbq *
3261 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3262 struct lpfc_iocbq *rspiocbp)
3264 struct lpfc_iocbq *saveq;
3265 struct lpfc_iocbq *cmdiocbp;
3266 struct lpfc_iocbq *next_iocb;
3267 IOCB_t *irsp = NULL;
3268 uint32_t free_saveq;
3269 uint8_t iocb_cmd_type;
3270 lpfc_iocb_type type;
3271 unsigned long iflag;
3274 spin_lock_irqsave(&phba->hbalock, iflag);
3275 /* First add the response iocb to the countinueq list */
3276 list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
3277 pring->iocb_continueq_cnt++;
3279 /* Now, determine whether the list is completed for processing */
3280 irsp = &rspiocbp->iocb;
3283 * By default, the driver expects to free all resources
3284 * associated with this iocb completion.
3287 saveq = list_get_first(&pring->iocb_continueq,
3288 struct lpfc_iocbq, list);
3289 irsp = &(saveq->iocb);
3290 list_del_init(&pring->iocb_continueq);
3291 pring->iocb_continueq_cnt = 0;
3293 pring->stats.iocb_rsp++;
3296 * If resource errors reported from HBA, reduce
3297 * queuedepths of the SCSI device.
3299 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3300 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3301 IOERR_NO_RESOURCES)) {
3302 spin_unlock_irqrestore(&phba->hbalock, iflag);
3303 phba->lpfc_rampdown_queue_depth(phba);
3304 spin_lock_irqsave(&phba->hbalock, iflag);
3307 if (irsp->ulpStatus) {
3308 /* Rsp ring <ringno> error: IOCB */
3309 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3310 "0328 Rsp Ring %d error: "
3315 "x%x x%x x%x x%x\n",
3317 irsp->un.ulpWord[0],
3318 irsp->un.ulpWord[1],
3319 irsp->un.ulpWord[2],
3320 irsp->un.ulpWord[3],
3321 irsp->un.ulpWord[4],
3322 irsp->un.ulpWord[5],
3323 *(((uint32_t *) irsp) + 6),
3324 *(((uint32_t *) irsp) + 7),
3325 *(((uint32_t *) irsp) + 8),
3326 *(((uint32_t *) irsp) + 9),
3327 *(((uint32_t *) irsp) + 10),
3328 *(((uint32_t *) irsp) + 11),
3329 *(((uint32_t *) irsp) + 12),
3330 *(((uint32_t *) irsp) + 13),
3331 *(((uint32_t *) irsp) + 14),
3332 *(((uint32_t *) irsp) + 15));
3336 * Fetch the IOCB command type and call the correct completion
3337 * routine. Solicited and Unsolicited IOCBs on the ELS ring
3338 * get freed back to the lpfc_iocb_list by the discovery
3341 iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
3342 type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
3345 spin_unlock_irqrestore(&phba->hbalock, iflag);
3346 rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
3347 spin_lock_irqsave(&phba->hbalock, iflag);
3350 case LPFC_UNSOL_IOCB:
3351 spin_unlock_irqrestore(&phba->hbalock, iflag);
3352 rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
3353 spin_lock_irqsave(&phba->hbalock, iflag);
3358 case LPFC_ABORT_IOCB:
3360 if (irsp->ulpCommand != CMD_XRI_ABORTED_CX)
3361 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
3364 /* Call the specified completion routine */
3365 if (cmdiocbp->iocb_cmpl) {
3366 spin_unlock_irqrestore(&phba->hbalock,
3368 (cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
3370 spin_lock_irqsave(&phba->hbalock,
3373 __lpfc_sli_release_iocbq(phba,
3378 case LPFC_UNKNOWN_IOCB:
3379 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3380 char adaptermsg[LPFC_MAX_ADPTMSG];
3381 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3382 memcpy(&adaptermsg[0], (uint8_t *)irsp,
3384 dev_warn(&((phba->pcidev)->dev),
3386 phba->brd_no, adaptermsg);
3388 /* Unknown IOCB command */
3389 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3390 "0335 Unknown IOCB "
3391 "command Data: x%x "
3402 list_for_each_entry_safe(rspiocbp, next_iocb,
3403 &saveq->list, list) {
3404 list_del_init(&rspiocbp->list);
3405 __lpfc_sli_release_iocbq(phba, rspiocbp);
3407 __lpfc_sli_release_iocbq(phba, saveq);
3411 spin_unlock_irqrestore(&phba->hbalock, iflag);
3416 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
3417 * @phba: Pointer to HBA context object.
3418 * @pring: Pointer to driver SLI ring object.
3419 * @mask: Host attention register mask for this ring.
3421 * This routine wraps the actual slow_ring event process routine from the
3422 * API jump table function pointer from the lpfc_hba struct.
3425 lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
3426 struct lpfc_sli_ring *pring, uint32_t mask)
3428 phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
3432 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
3433 * @phba: Pointer to HBA context object.
3434 * @pring: Pointer to driver SLI ring object.
3435 * @mask: Host attention register mask for this ring.
3437 * This function is called from the worker thread when there is a ring event
3438 * for non-fcp rings. The caller does not hold any lock. The function will
3439 * remove each response iocb in the response ring and calls the handle
3440 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3443 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
3444 struct lpfc_sli_ring *pring, uint32_t mask)
3446 struct lpfc_pgp *pgp;
3448 IOCB_t *irsp = NULL;
3449 struct lpfc_iocbq *rspiocbp = NULL;
3450 uint32_t portRspPut, portRspMax;
3451 unsigned long iflag;
3454 pgp = &phba->port_gp[pring->ringno];
3455 spin_lock_irqsave(&phba->hbalock, iflag);
3456 pring->stats.iocb_event++;
3459 * The next available response entry should never exceed the maximum
3460 * entries. If it does, treat it as an adapter hardware error.
3462 portRspMax = pring->sli.sli3.numRiocb;
3463 portRspPut = le32_to_cpu(pgp->rspPutInx);
3464 if (portRspPut >= portRspMax) {
3466 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
3467 * rsp ring <portRspMax>
3469 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3470 "0303 Ring %d handler: portRspPut %d "
3471 "is bigger than rsp ring %d\n",
3472 pring->ringno, portRspPut, portRspMax);
3474 phba->link_state = LPFC_HBA_ERROR;
3475 spin_unlock_irqrestore(&phba->hbalock, iflag);
3477 phba->work_hs = HS_FFER3;
3478 lpfc_handle_eratt(phba);
3484 while (pring->sli.sli3.rspidx != portRspPut) {
3486 * Build a completion list and call the appropriate handler.
3487 * The process is to get the next available response iocb, get
3488 * a free iocb from the list, copy the response data into the
3489 * free iocb, insert to the continuation list, and update the
3490 * next response index to slim. This process makes response
3491 * iocb's in the ring available to DMA as fast as possible but
3492 * pays a penalty for a copy operation. Since the iocb is
3493 * only 32 bytes, this penalty is considered small relative to
3494 * the PCI reads for register values and a slim write. When
3495 * the ulpLe field is set, the entire Command has been
3498 entry = lpfc_resp_iocb(phba, pring);
3500 phba->last_completion_time = jiffies;
3501 rspiocbp = __lpfc_sli_get_iocbq(phba);
3502 if (rspiocbp == NULL) {
3503 printk(KERN_ERR "%s: out of buffers! Failing "
3504 "completion.\n", __func__);
3508 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
3509 phba->iocb_rsp_size);
3510 irsp = &rspiocbp->iocb;
3512 if (++pring->sli.sli3.rspidx >= portRspMax)
3513 pring->sli.sli3.rspidx = 0;
3515 if (pring->ringno == LPFC_ELS_RING) {
3516 lpfc_debugfs_slow_ring_trc(phba,
3517 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
3518 *(((uint32_t *) irsp) + 4),
3519 *(((uint32_t *) irsp) + 6),
3520 *(((uint32_t *) irsp) + 7));
3523 writel(pring->sli.sli3.rspidx,
3524 &phba->host_gp[pring->ringno].rspGetInx);
3526 spin_unlock_irqrestore(&phba->hbalock, iflag);
3527 /* Handle the response IOCB */
3528 rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
3529 spin_lock_irqsave(&phba->hbalock, iflag);
3532 * If the port response put pointer has not been updated, sync
3533 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
3534 * response put pointer.
3536 if (pring->sli.sli3.rspidx == portRspPut) {
3537 portRspPut = le32_to_cpu(pgp->rspPutInx);
3539 } /* while (pring->sli.sli3.rspidx != portRspPut) */
3541 if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
3542 /* At least one response entry has been freed */
3543 pring->stats.iocb_rsp_full++;
3544 /* SET RxRE_RSP in Chip Att register */
3545 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3546 writel(status, phba->CAregaddr);
3547 readl(phba->CAregaddr); /* flush */
3549 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3550 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3551 pring->stats.iocb_cmd_empty++;
3553 /* Force update of the local copy of cmdGetInx */
3554 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3555 lpfc_sli_resume_iocb(phba, pring);
3557 if ((pring->lpfc_sli_cmd_available))
3558 (pring->lpfc_sli_cmd_available) (phba, pring);
3562 spin_unlock_irqrestore(&phba->hbalock, iflag);
3567 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
3568 * @phba: Pointer to HBA context object.
3569 * @pring: Pointer to driver SLI ring object.
3570 * @mask: Host attention register mask for this ring.
3572 * This function is called from the worker thread when there is a pending
3573 * ELS response iocb on the driver internal slow-path response iocb worker
3574 * queue. The caller does not hold any lock. The function will remove each
3575 * response iocb from the response worker queue and calls the handle
3576 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3579 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
3580 struct lpfc_sli_ring *pring, uint32_t mask)
3582 struct lpfc_iocbq *irspiocbq;
3583 struct hbq_dmabuf *dmabuf;
3584 struct lpfc_cq_event *cq_event;
3585 unsigned long iflag;
3587 spin_lock_irqsave(&phba->hbalock, iflag);
3588 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
3589 spin_unlock_irqrestore(&phba->hbalock, iflag);
3590 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
3591 /* Get the response iocb from the head of work queue */
3592 spin_lock_irqsave(&phba->hbalock, iflag);
3593 list_remove_head(&phba->sli4_hba.sp_queue_event,
3594 cq_event, struct lpfc_cq_event, list);
3595 spin_unlock_irqrestore(&phba->hbalock, iflag);
3597 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
3598 case CQE_CODE_COMPL_WQE:
3599 irspiocbq = container_of(cq_event, struct lpfc_iocbq,
3601 /* Translate ELS WCQE to response IOCBQ */
3602 irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba,
3605 lpfc_sli_sp_handle_rspiocb(phba, pring,
3608 case CQE_CODE_RECEIVE:
3609 case CQE_CODE_RECEIVE_V1:
3610 dmabuf = container_of(cq_event, struct hbq_dmabuf,
3612 lpfc_sli4_handle_received_buffer(phba, dmabuf);
3621 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
3622 * @phba: Pointer to HBA context object.
3623 * @pring: Pointer to driver SLI ring object.
3625 * This function aborts all iocbs in the given ring and frees all the iocb
3626 * objects in txq. This function issues an abort iocb for all the iocb commands
3627 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3628 * the return of this function. The caller is not required to hold any locks.
3631 lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3633 LIST_HEAD(completions);
3634 struct lpfc_iocbq *iocb, *next_iocb;
3636 if (pring->ringno == LPFC_ELS_RING) {
3637 lpfc_fabric_abort_hba(phba);
3640 /* Error everything on txq and txcmplq
3643 if (phba->sli_rev >= LPFC_SLI_REV4) {
3644 spin_lock_irq(&pring->ring_lock);
3645 list_splice_init(&pring->txq, &completions);
3647 spin_unlock_irq(&pring->ring_lock);
3649 spin_lock_irq(&phba->hbalock);
3650 /* Next issue ABTS for everything on the txcmplq */
3651 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3652 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3653 spin_unlock_irq(&phba->hbalock);
3655 spin_lock_irq(&phba->hbalock);
3656 list_splice_init(&pring->txq, &completions);
3659 /* Next issue ABTS for everything on the txcmplq */
3660 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3661 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3662 spin_unlock_irq(&phba->hbalock);
3665 /* Cancel all the IOCBs from the completions list */
3666 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3671 * lpfc_sli_abort_wqe_ring - Abort all iocbs in the ring
3672 * @phba: Pointer to HBA context object.
3673 * @pring: Pointer to driver SLI ring object.
3675 * This function aborts all iocbs in the given ring and frees all the iocb
3676 * objects in txq. This function issues an abort iocb for all the iocb commands
3677 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3678 * the return of this function. The caller is not required to hold any locks.
3681 lpfc_sli_abort_wqe_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3683 LIST_HEAD(completions);
3684 struct lpfc_iocbq *iocb, *next_iocb;
3686 if (pring->ringno == LPFC_ELS_RING)
3687 lpfc_fabric_abort_hba(phba);
3689 spin_lock_irq(&phba->hbalock);
3690 /* Next issue ABTS for everything on the txcmplq */
3691 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3692 lpfc_sli4_abort_nvme_io(phba, pring, iocb);
3693 spin_unlock_irq(&phba->hbalock);
3698 * lpfc_sli_abort_fcp_rings - Abort all iocbs in all FCP rings
3699 * @phba: Pointer to HBA context object.
3700 * @pring: Pointer to driver SLI ring object.
3702 * This function aborts all iocbs in FCP rings and frees all the iocb
3703 * objects in txq. This function issues an abort iocb for all the iocb commands
3704 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3705 * the return of this function. The caller is not required to hold any locks.
3708 lpfc_sli_abort_fcp_rings(struct lpfc_hba *phba)
3710 struct lpfc_sli *psli = &phba->sli;
3711 struct lpfc_sli_ring *pring;
3714 /* Look on all the FCP Rings for the iotag */
3715 if (phba->sli_rev >= LPFC_SLI_REV4) {
3716 for (i = 0; i < phba->cfg_fcp_io_channel; i++) {
3717 pring = phba->sli4_hba.fcp_wq[i]->pring;
3718 lpfc_sli_abort_iocb_ring(phba, pring);
3721 pring = &psli->sli3_ring[LPFC_FCP_RING];
3722 lpfc_sli_abort_iocb_ring(phba, pring);
3727 * lpfc_sli_abort_nvme_rings - Abort all wqes in all NVME rings
3728 * @phba: Pointer to HBA context object.
3730 * This function aborts all wqes in NVME rings. This function issues an
3731 * abort wqe for all the outstanding IO commands in txcmplq. The iocbs in
3732 * the txcmplq is not guaranteed to complete before the return of this
3733 * function. The caller is not required to hold any locks.
3736 lpfc_sli_abort_nvme_rings(struct lpfc_hba *phba)
3738 struct lpfc_sli_ring *pring;
3741 if (phba->sli_rev < LPFC_SLI_REV4)
3744 /* Abort all IO on each NVME ring. */
3745 for (i = 0; i < phba->cfg_nvme_io_channel; i++) {
3746 pring = phba->sli4_hba.nvme_wq[i]->pring;
3747 lpfc_sli_abort_wqe_ring(phba, pring);
3753 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
3754 * @phba: Pointer to HBA context object.
3756 * This function flushes all iocbs in the fcp ring and frees all the iocb
3757 * objects in txq and txcmplq. This function will not issue abort iocbs
3758 * for all the iocb commands in txcmplq, they will just be returned with
3759 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3760 * slot has been permanently disabled.
3763 lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba)
3767 struct lpfc_sli *psli = &phba->sli;
3768 struct lpfc_sli_ring *pring;
3771 spin_lock_irq(&phba->hbalock);
3772 /* Indicate the I/O queues are flushed */
3773 phba->hba_flag |= HBA_FCP_IOQ_FLUSH;
3774 spin_unlock_irq(&phba->hbalock);
3776 /* Look on all the FCP Rings for the iotag */
3777 if (phba->sli_rev >= LPFC_SLI_REV4) {
3778 for (i = 0; i < phba->cfg_fcp_io_channel; i++) {
3779 pring = phba->sli4_hba.fcp_wq[i]->pring;
3781 spin_lock_irq(&pring->ring_lock);
3782 /* Retrieve everything on txq */
3783 list_splice_init(&pring->txq, &txq);
3784 /* Retrieve everything on the txcmplq */
3785 list_splice_init(&pring->txcmplq, &txcmplq);
3787 pring->txcmplq_cnt = 0;
3788 spin_unlock_irq(&pring->ring_lock);
3791 lpfc_sli_cancel_iocbs(phba, &txq,
3792 IOSTAT_LOCAL_REJECT,
3794 /* Flush the txcmpq */
3795 lpfc_sli_cancel_iocbs(phba, &txcmplq,
3796 IOSTAT_LOCAL_REJECT,
3800 pring = &psli->sli3_ring[LPFC_FCP_RING];
3802 spin_lock_irq(&phba->hbalock);
3803 /* Retrieve everything on txq */
3804 list_splice_init(&pring->txq, &txq);
3805 /* Retrieve everything on the txcmplq */
3806 list_splice_init(&pring->txcmplq, &txcmplq);
3808 pring->txcmplq_cnt = 0;
3809 spin_unlock_irq(&phba->hbalock);
3812 lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
3814 /* Flush the txcmpq */
3815 lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
3821 * lpfc_sli_flush_nvme_rings - flush all wqes in the nvme rings
3822 * @phba: Pointer to HBA context object.
3824 * This function flushes all wqes in the nvme rings and frees all resources
3825 * in the txcmplq. This function does not issue abort wqes for the IO
3826 * commands in txcmplq, they will just be returned with
3827 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3828 * slot has been permanently disabled.
3831 lpfc_sli_flush_nvme_rings(struct lpfc_hba *phba)
3834 struct lpfc_sli_ring *pring;
3837 if (phba->sli_rev < LPFC_SLI_REV4)
3840 /* Hint to other driver operations that a flush is in progress. */
3841 spin_lock_irq(&phba->hbalock);
3842 phba->hba_flag |= HBA_NVME_IOQ_FLUSH;
3843 spin_unlock_irq(&phba->hbalock);
3845 /* Cycle through all NVME rings and complete each IO with
3846 * a local driver reason code. This is a flush so no
3847 * abort exchange to FW.
3849 for (i = 0; i < phba->cfg_nvme_io_channel; i++) {
3850 pring = phba->sli4_hba.nvme_wq[i]->pring;
3852 /* Retrieve everything on the txcmplq */
3853 spin_lock_irq(&pring->ring_lock);
3854 list_splice_init(&pring->txcmplq, &txcmplq);
3855 pring->txcmplq_cnt = 0;
3856 spin_unlock_irq(&pring->ring_lock);
3858 /* Flush the txcmpq &&&PAE */
3859 lpfc_sli_cancel_iocbs(phba, &txcmplq,
3860 IOSTAT_LOCAL_REJECT,
3866 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
3867 * @phba: Pointer to HBA context object.
3868 * @mask: Bit mask to be checked.
3870 * This function reads the host status register and compares
3871 * with the provided bit mask to check if HBA completed
3872 * the restart. This function will wait in a loop for the
3873 * HBA to complete restart. If the HBA does not restart within
3874 * 15 iterations, the function will reset the HBA again. The
3875 * function returns 1 when HBA fail to restart otherwise returns
3879 lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
3885 /* Read the HBA Host Status Register */
3886 if (lpfc_readl(phba->HSregaddr, &status))
3890 * Check status register every 100ms for 5 retries, then every
3891 * 500ms for 5, then every 2.5 sec for 5, then reset board and
3892 * every 2.5 sec for 4.
3893 * Break our of the loop if errors occurred during init.
3895 while (((status & mask) != mask) &&
3896 !(status & HS_FFERM) &&
3908 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3909 lpfc_sli_brdrestart(phba);
3911 /* Read the HBA Host Status Register */
3912 if (lpfc_readl(phba->HSregaddr, &status)) {
3918 /* Check to see if any errors occurred during init */
3919 if ((status & HS_FFERM) || (i >= 20)) {
3920 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3921 "2751 Adapter failed to restart, "
3922 "status reg x%x, FW Data: A8 x%x AC x%x\n",
3924 readl(phba->MBslimaddr + 0xa8),
3925 readl(phba->MBslimaddr + 0xac));
3926 phba->link_state = LPFC_HBA_ERROR;
3934 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3935 * @phba: Pointer to HBA context object.
3936 * @mask: Bit mask to be checked.
3938 * This function checks the host status register to check if HBA is
3939 * ready. This function will wait in a loop for the HBA to be ready
3940 * If the HBA is not ready , the function will will reset the HBA PCI
3941 * function again. The function returns 1 when HBA fail to be ready
3942 * otherwise returns zero.
3945 lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
3950 /* Read the HBA Host Status Register */
3951 status = lpfc_sli4_post_status_check(phba);
3954 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3955 lpfc_sli_brdrestart(phba);
3956 status = lpfc_sli4_post_status_check(phba);
3959 /* Check to see if any errors occurred during init */
3961 phba->link_state = LPFC_HBA_ERROR;
3964 phba->sli4_hba.intr_enable = 0;
3970 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3971 * @phba: Pointer to HBA context object.
3972 * @mask: Bit mask to be checked.
3974 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3975 * from the API jump table function pointer from the lpfc_hba struct.
3978 lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
3980 return phba->lpfc_sli_brdready(phba, mask);
3983 #define BARRIER_TEST_PATTERN (0xdeadbeef)
3986 * lpfc_reset_barrier - Make HBA ready for HBA reset
3987 * @phba: Pointer to HBA context object.
3989 * This function is called before resetting an HBA. This function is called
3990 * with hbalock held and requests HBA to quiesce DMAs before a reset.
3992 void lpfc_reset_barrier(struct lpfc_hba *phba)
3994 uint32_t __iomem *resp_buf;
3995 uint32_t __iomem *mbox_buf;
3996 volatile uint32_t mbox;
3997 uint32_t hc_copy, ha_copy, resp_data;
4001 lockdep_assert_held(&phba->hbalock);
4003 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
4004 if (hdrtype != 0x80 ||
4005 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
4006 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
4010 * Tell the other part of the chip to suspend temporarily all
4013 resp_buf = phba->MBslimaddr;
4015 /* Disable the error attention */
4016 if (lpfc_readl(phba->HCregaddr, &hc_copy))
4018 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
4019 readl(phba->HCregaddr); /* flush */
4020 phba->link_flag |= LS_IGNORE_ERATT;
4022 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4024 if (ha_copy & HA_ERATT) {
4025 /* Clear Chip error bit */
4026 writel(HA_ERATT, phba->HAregaddr);
4027 phba->pport->stopped = 1;
4031 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
4032 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
4034 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
4035 mbox_buf = phba->MBslimaddr;
4036 writel(mbox, mbox_buf);
4038 for (i = 0; i < 50; i++) {
4039 if (lpfc_readl((resp_buf + 1), &resp_data))
4041 if (resp_data != ~(BARRIER_TEST_PATTERN))
4047 if (lpfc_readl((resp_buf + 1), &resp_data))
4049 if (resp_data != ~(BARRIER_TEST_PATTERN)) {
4050 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
4051 phba->pport->stopped)
4057 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
4059 for (i = 0; i < 500; i++) {
4060 if (lpfc_readl(resp_buf, &resp_data))
4062 if (resp_data != mbox)
4071 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4073 if (!(ha_copy & HA_ERATT))
4079 if (readl(phba->HAregaddr) & HA_ERATT) {
4080 writel(HA_ERATT, phba->HAregaddr);
4081 phba->pport->stopped = 1;
4085 phba->link_flag &= ~LS_IGNORE_ERATT;
4086 writel(hc_copy, phba->HCregaddr);
4087 readl(phba->HCregaddr); /* flush */
4091 * lpfc_sli_brdkill - Issue a kill_board mailbox command
4092 * @phba: Pointer to HBA context object.
4094 * This function issues a kill_board mailbox command and waits for
4095 * the error attention interrupt. This function is called for stopping
4096 * the firmware processing. The caller is not required to hold any
4097 * locks. This function calls lpfc_hba_down_post function to free
4098 * any pending commands after the kill. The function will return 1 when it
4099 * fails to kill the board else will return 0.
4102 lpfc_sli_brdkill(struct lpfc_hba *phba)
4104 struct lpfc_sli *psli;
4114 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4115 "0329 Kill HBA Data: x%x x%x\n",
4116 phba->pport->port_state, psli->sli_flag);
4118 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4122 /* Disable the error attention */
4123 spin_lock_irq(&phba->hbalock);
4124 if (lpfc_readl(phba->HCregaddr, &status)) {
4125 spin_unlock_irq(&phba->hbalock);
4126 mempool_free(pmb, phba->mbox_mem_pool);
4129 status &= ~HC_ERINT_ENA;
4130 writel(status, phba->HCregaddr);
4131 readl(phba->HCregaddr); /* flush */
4132 phba->link_flag |= LS_IGNORE_ERATT;
4133 spin_unlock_irq(&phba->hbalock);
4135 lpfc_kill_board(phba, pmb);
4136 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4137 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4139 if (retval != MBX_SUCCESS) {
4140 if (retval != MBX_BUSY)
4141 mempool_free(pmb, phba->mbox_mem_pool);
4142 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4143 "2752 KILL_BOARD command failed retval %d\n",
4145 spin_lock_irq(&phba->hbalock);
4146 phba->link_flag &= ~LS_IGNORE_ERATT;
4147 spin_unlock_irq(&phba->hbalock);
4151 spin_lock_irq(&phba->hbalock);
4152 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
4153 spin_unlock_irq(&phba->hbalock);
4155 mempool_free(pmb, phba->mbox_mem_pool);
4157 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
4158 * attention every 100ms for 3 seconds. If we don't get ERATT after
4159 * 3 seconds we still set HBA_ERROR state because the status of the
4160 * board is now undefined.
4162 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4164 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
4166 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4170 del_timer_sync(&psli->mbox_tmo);
4171 if (ha_copy & HA_ERATT) {
4172 writel(HA_ERATT, phba->HAregaddr);
4173 phba->pport->stopped = 1;
4175 spin_lock_irq(&phba->hbalock);
4176 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4177 psli->mbox_active = NULL;
4178 phba->link_flag &= ~LS_IGNORE_ERATT;
4179 spin_unlock_irq(&phba->hbalock);
4181 lpfc_hba_down_post(phba);
4182 phba->link_state = LPFC_HBA_ERROR;
4184 return ha_copy & HA_ERATT ? 0 : 1;
4188 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
4189 * @phba: Pointer to HBA context object.
4191 * This function resets the HBA by writing HC_INITFF to the control
4192 * register. After the HBA resets, this function resets all the iocb ring
4193 * indices. This function disables PCI layer parity checking during
4195 * This function returns 0 always.
4196 * The caller is not required to hold any locks.
4199 lpfc_sli_brdreset(struct lpfc_hba *phba)
4201 struct lpfc_sli *psli;
4202 struct lpfc_sli_ring *pring;
4209 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4210 "0325 Reset HBA Data: x%x x%x\n",
4211 (phba->pport) ? phba->pport->port_state : 0,
4214 /* perform board reset */
4215 phba->fc_eventTag = 0;
4216 phba->link_events = 0;
4218 phba->pport->fc_myDID = 0;
4219 phba->pport->fc_prevDID = 0;
4222 /* Turn off parity checking and serr during the physical reset */
4223 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
4224 pci_write_config_word(phba->pcidev, PCI_COMMAND,
4226 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4228 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
4230 /* Now toggle INITFF bit in the Host Control Register */
4231 writel(HC_INITFF, phba->HCregaddr);
4233 readl(phba->HCregaddr); /* flush */
4234 writel(0, phba->HCregaddr);
4235 readl(phba->HCregaddr); /* flush */
4237 /* Restore PCI cmd register */
4238 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
4240 /* Initialize relevant SLI info */
4241 for (i = 0; i < psli->num_rings; i++) {
4242 pring = &psli->sli3_ring[i];
4244 pring->sli.sli3.rspidx = 0;
4245 pring->sli.sli3.next_cmdidx = 0;
4246 pring->sli.sli3.local_getidx = 0;
4247 pring->sli.sli3.cmdidx = 0;
4248 pring->missbufcnt = 0;
4251 phba->link_state = LPFC_WARM_START;
4256 * lpfc_sli4_brdreset - Reset a sli-4 HBA
4257 * @phba: Pointer to HBA context object.
4259 * This function resets a SLI4 HBA. This function disables PCI layer parity
4260 * checking during resets the device. The caller is not required to hold
4263 * This function returns 0 always.
4266 lpfc_sli4_brdreset(struct lpfc_hba *phba)
4268 struct lpfc_sli *psli = &phba->sli;
4273 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4274 "0295 Reset HBA Data: x%x x%x x%x\n",
4275 phba->pport->port_state, psli->sli_flag,
4278 /* perform board reset */
4279 phba->fc_eventTag = 0;
4280 phba->link_events = 0;
4281 phba->pport->fc_myDID = 0;
4282 phba->pport->fc_prevDID = 0;
4284 spin_lock_irq(&phba->hbalock);
4285 psli->sli_flag &= ~(LPFC_PROCESS_LA);
4286 phba->fcf.fcf_flag = 0;
4287 spin_unlock_irq(&phba->hbalock);
4289 /* SLI4 INTF 2: if FW dump is being taken skip INIT_PORT */
4290 if (phba->hba_flag & HBA_FW_DUMP_OP) {
4291 phba->hba_flag &= ~HBA_FW_DUMP_OP;
4295 /* Now physically reset the device */
4296 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4297 "0389 Performing PCI function reset!\n");
4299 /* Turn off parity checking and serr during the physical reset */
4300 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
4301 pci_write_config_word(phba->pcidev, PCI_COMMAND, (cfg_value &
4302 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4304 /* Perform FCoE PCI function reset before freeing queue memory */
4305 rc = lpfc_pci_function_reset(phba);
4307 /* Restore PCI cmd register */
4308 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
4314 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
4315 * @phba: Pointer to HBA context object.
4317 * This function is called in the SLI initialization code path to
4318 * restart the HBA. The caller is not required to hold any lock.
4319 * This function writes MBX_RESTART mailbox command to the SLIM and
4320 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
4321 * function to free any pending commands. The function enables
4322 * POST only during the first initialization. The function returns zero.
4323 * The function does not guarantee completion of MBX_RESTART mailbox
4324 * command before the return of this function.
4327 lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
4330 struct lpfc_sli *psli;
4331 volatile uint32_t word0;
4332 void __iomem *to_slim;
4333 uint32_t hba_aer_enabled;
4335 spin_lock_irq(&phba->hbalock);
4337 /* Take PCIe device Advanced Error Reporting (AER) state */
4338 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4343 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4344 "0337 Restart HBA Data: x%x x%x\n",
4345 (phba->pport) ? phba->pport->port_state : 0,
4349 mb = (MAILBOX_t *) &word0;
4350 mb->mbxCommand = MBX_RESTART;
4353 lpfc_reset_barrier(phba);
4355 to_slim = phba->MBslimaddr;
4356 writel(*(uint32_t *) mb, to_slim);
4357 readl(to_slim); /* flush */
4359 /* Only skip post after fc_ffinit is completed */
4360 if (phba->pport && phba->pport->port_state)
4361 word0 = 1; /* This is really setting up word1 */
4363 word0 = 0; /* This is really setting up word1 */
4364 to_slim = phba->MBslimaddr + sizeof (uint32_t);
4365 writel(*(uint32_t *) mb, to_slim);
4366 readl(to_slim); /* flush */
4368 lpfc_sli_brdreset(phba);
4370 phba->pport->stopped = 0;
4371 phba->link_state = LPFC_INIT_START;
4373 spin_unlock_irq(&phba->hbalock);
4375 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4376 psli->stats_start = get_seconds();
4378 /* Give the INITFF and Post time to settle. */
4381 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4382 if (hba_aer_enabled)
4383 pci_disable_pcie_error_reporting(phba->pcidev);
4385 lpfc_hba_down_post(phba);
4391 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
4392 * @phba: Pointer to HBA context object.
4394 * This function is called in the SLI initialization code path to restart
4395 * a SLI4 HBA. The caller is not required to hold any lock.
4396 * At the end of the function, it calls lpfc_hba_down_post function to
4397 * free any pending commands.
4400 lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
4402 struct lpfc_sli *psli = &phba->sli;
4403 uint32_t hba_aer_enabled;
4407 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4408 "0296 Restart HBA Data: x%x x%x\n",
4409 phba->pport->port_state, psli->sli_flag);
4411 /* Take PCIe device Advanced Error Reporting (AER) state */
4412 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4414 rc = lpfc_sli4_brdreset(phba);
4416 spin_lock_irq(&phba->hbalock);
4417 phba->pport->stopped = 0;
4418 phba->link_state = LPFC_INIT_START;
4420 spin_unlock_irq(&phba->hbalock);
4422 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4423 psli->stats_start = get_seconds();
4425 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4426 if (hba_aer_enabled)
4427 pci_disable_pcie_error_reporting(phba->pcidev);
4429 lpfc_hba_down_post(phba);
4430 lpfc_sli4_queue_destroy(phba);
4436 * lpfc_sli_brdrestart - Wrapper func for restarting hba
4437 * @phba: Pointer to HBA context object.
4439 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
4440 * API jump table function pointer from the lpfc_hba struct.
4443 lpfc_sli_brdrestart(struct lpfc_hba *phba)
4445 return phba->lpfc_sli_brdrestart(phba);
4449 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
4450 * @phba: Pointer to HBA context object.
4452 * This function is called after a HBA restart to wait for successful
4453 * restart of the HBA. Successful restart of the HBA is indicated by
4454 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
4455 * iteration, the function will restart the HBA again. The function returns
4456 * zero if HBA successfully restarted else returns negative error code.
4459 lpfc_sli_chipset_init(struct lpfc_hba *phba)
4461 uint32_t status, i = 0;
4463 /* Read the HBA Host Status Register */
4464 if (lpfc_readl(phba->HSregaddr, &status))
4467 /* Check status register to see what current state is */
4469 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
4471 /* Check every 10ms for 10 retries, then every 100ms for 90
4472 * retries, then every 1 sec for 50 retires for a total of
4473 * ~60 seconds before reset the board again and check every
4474 * 1 sec for 50 retries. The up to 60 seconds before the
4475 * board ready is required by the Falcon FIPS zeroization
4476 * complete, and any reset the board in between shall cause
4477 * restart of zeroization, further delay the board ready.
4480 /* Adapter failed to init, timeout, status reg
4482 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4483 "0436 Adapter failed to init, "
4484 "timeout, status reg x%x, "
4485 "FW Data: A8 x%x AC x%x\n", status,
4486 readl(phba->MBslimaddr + 0xa8),
4487 readl(phba->MBslimaddr + 0xac));
4488 phba->link_state = LPFC_HBA_ERROR;
4492 /* Check to see if any errors occurred during init */
4493 if (status & HS_FFERM) {
4494 /* ERROR: During chipset initialization */
4495 /* Adapter failed to init, chipset, status reg
4497 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4498 "0437 Adapter failed to init, "
4499 "chipset, status reg x%x, "
4500 "FW Data: A8 x%x AC x%x\n", status,
4501 readl(phba->MBslimaddr + 0xa8),
4502 readl(phba->MBslimaddr + 0xac));
4503 phba->link_state = LPFC_HBA_ERROR;
4516 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4517 lpfc_sli_brdrestart(phba);
4519 /* Read the HBA Host Status Register */
4520 if (lpfc_readl(phba->HSregaddr, &status))
4524 /* Check to see if any errors occurred during init */
4525 if (status & HS_FFERM) {
4526 /* ERROR: During chipset initialization */
4527 /* Adapter failed to init, chipset, status reg <status> */
4528 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4529 "0438 Adapter failed to init, chipset, "
4531 "FW Data: A8 x%x AC x%x\n", status,
4532 readl(phba->MBslimaddr + 0xa8),
4533 readl(phba->MBslimaddr + 0xac));
4534 phba->link_state = LPFC_HBA_ERROR;
4538 /* Clear all interrupt enable conditions */
4539 writel(0, phba->HCregaddr);
4540 readl(phba->HCregaddr); /* flush */
4542 /* setup host attn register */
4543 writel(0xffffffff, phba->HAregaddr);
4544 readl(phba->HAregaddr); /* flush */
4549 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
4551 * This function calculates and returns the number of HBQs required to be
4555 lpfc_sli_hbq_count(void)
4557 return ARRAY_SIZE(lpfc_hbq_defs);
4561 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
4563 * This function adds the number of hbq entries in every HBQ to get
4564 * the total number of hbq entries required for the HBA and returns
4568 lpfc_sli_hbq_entry_count(void)
4570 int hbq_count = lpfc_sli_hbq_count();
4574 for (i = 0; i < hbq_count; ++i)
4575 count += lpfc_hbq_defs[i]->entry_count;
4580 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
4582 * This function calculates amount of memory required for all hbq entries
4583 * to be configured and returns the total memory required.
4586 lpfc_sli_hbq_size(void)
4588 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
4592 * lpfc_sli_hbq_setup - configure and initialize HBQs
4593 * @phba: Pointer to HBA context object.
4595 * This function is called during the SLI initialization to configure
4596 * all the HBQs and post buffers to the HBQ. The caller is not
4597 * required to hold any locks. This function will return zero if successful
4598 * else it will return negative error code.
4601 lpfc_sli_hbq_setup(struct lpfc_hba *phba)
4603 int hbq_count = lpfc_sli_hbq_count();
4607 uint32_t hbq_entry_index;
4609 /* Get a Mailbox buffer to setup mailbox
4610 * commands for HBA initialization
4612 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4619 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
4620 phba->link_state = LPFC_INIT_MBX_CMDS;
4621 phba->hbq_in_use = 1;
4623 hbq_entry_index = 0;
4624 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
4625 phba->hbqs[hbqno].next_hbqPutIdx = 0;
4626 phba->hbqs[hbqno].hbqPutIdx = 0;
4627 phba->hbqs[hbqno].local_hbqGetIdx = 0;
4628 phba->hbqs[hbqno].entry_count =
4629 lpfc_hbq_defs[hbqno]->entry_count;
4630 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
4631 hbq_entry_index, pmb);
4632 hbq_entry_index += phba->hbqs[hbqno].entry_count;
4634 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
4635 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
4636 mbxStatus <status>, ring <num> */
4638 lpfc_printf_log(phba, KERN_ERR,
4639 LOG_SLI | LOG_VPORT,
4640 "1805 Adapter failed to init. "
4641 "Data: x%x x%x x%x\n",
4643 pmbox->mbxStatus, hbqno);
4645 phba->link_state = LPFC_HBA_ERROR;
4646 mempool_free(pmb, phba->mbox_mem_pool);
4650 phba->hbq_count = hbq_count;
4652 mempool_free(pmb, phba->mbox_mem_pool);
4654 /* Initially populate or replenish the HBQs */
4655 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
4656 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
4661 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
4662 * @phba: Pointer to HBA context object.
4664 * This function is called during the SLI initialization to configure
4665 * all the HBQs and post buffers to the HBQ. The caller is not
4666 * required to hold any locks. This function will return zero if successful
4667 * else it will return negative error code.
4670 lpfc_sli4_rb_setup(struct lpfc_hba *phba)
4672 phba->hbq_in_use = 1;
4673 phba->hbqs[LPFC_ELS_HBQ].entry_count =
4674 lpfc_hbq_defs[LPFC_ELS_HBQ]->entry_count;
4675 phba->hbq_count = 1;
4676 lpfc_sli_hbqbuf_init_hbqs(phba, LPFC_ELS_HBQ);
4677 /* Initially populate or replenish the HBQs */
4682 * lpfc_sli_config_port - Issue config port mailbox command
4683 * @phba: Pointer to HBA context object.
4684 * @sli_mode: sli mode - 2/3
4686 * This function is called by the sli initialization code path
4687 * to issue config_port mailbox command. This function restarts the
4688 * HBA firmware and issues a config_port mailbox command to configure
4689 * the SLI interface in the sli mode specified by sli_mode
4690 * variable. The caller is not required to hold any locks.
4691 * The function returns 0 if successful, else returns negative error
4695 lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
4698 uint32_t resetcount = 0, rc = 0, done = 0;
4700 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4702 phba->link_state = LPFC_HBA_ERROR;
4706 phba->sli_rev = sli_mode;
4707 while (resetcount < 2 && !done) {
4708 spin_lock_irq(&phba->hbalock);
4709 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
4710 spin_unlock_irq(&phba->hbalock);
4711 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4712 lpfc_sli_brdrestart(phba);
4713 rc = lpfc_sli_chipset_init(phba);
4717 spin_lock_irq(&phba->hbalock);
4718 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4719 spin_unlock_irq(&phba->hbalock);
4722 /* Call pre CONFIG_PORT mailbox command initialization. A
4723 * value of 0 means the call was successful. Any other
4724 * nonzero value is a failure, but if ERESTART is returned,
4725 * the driver may reset the HBA and try again.
4727 rc = lpfc_config_port_prep(phba);
4728 if (rc == -ERESTART) {
4729 phba->link_state = LPFC_LINK_UNKNOWN;
4734 phba->link_state = LPFC_INIT_MBX_CMDS;
4735 lpfc_config_port(phba, pmb);
4736 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
4737 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
4738 LPFC_SLI3_HBQ_ENABLED |
4739 LPFC_SLI3_CRP_ENABLED |
4740 LPFC_SLI3_BG_ENABLED |
4741 LPFC_SLI3_DSS_ENABLED);
4742 if (rc != MBX_SUCCESS) {
4743 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4744 "0442 Adapter failed to init, mbxCmd x%x "
4745 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
4746 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
4747 spin_lock_irq(&phba->hbalock);
4748 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
4749 spin_unlock_irq(&phba->hbalock);
4752 /* Allow asynchronous mailbox command to go through */
4753 spin_lock_irq(&phba->hbalock);
4754 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
4755 spin_unlock_irq(&phba->hbalock);
4758 if ((pmb->u.mb.un.varCfgPort.casabt == 1) &&
4759 (pmb->u.mb.un.varCfgPort.gasabt == 0))
4760 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4761 "3110 Port did not grant ASABT\n");
4766 goto do_prep_failed;
4768 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
4769 if (!pmb->u.mb.un.varCfgPort.cMA) {
4771 goto do_prep_failed;
4773 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
4774 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
4775 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
4776 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
4777 phba->max_vpi : phba->max_vports;
4781 phba->fips_level = 0;
4782 phba->fips_spec_rev = 0;
4783 if (pmb->u.mb.un.varCfgPort.gdss) {
4784 phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
4785 phba->fips_level = pmb->u.mb.un.varCfgPort.fips_level;
4786 phba->fips_spec_rev = pmb->u.mb.un.varCfgPort.fips_rev;
4787 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4788 "2850 Security Crypto Active. FIPS x%d "
4790 phba->fips_level, phba->fips_spec_rev);
4792 if (pmb->u.mb.un.varCfgPort.sec_err) {
4793 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4794 "2856 Config Port Security Crypto "
4796 pmb->u.mb.un.varCfgPort.sec_err);
4798 if (pmb->u.mb.un.varCfgPort.gerbm)
4799 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
4800 if (pmb->u.mb.un.varCfgPort.gcrp)
4801 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
4803 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
4804 phba->port_gp = phba->mbox->us.s3_pgp.port;
4806 if (phba->cfg_enable_bg) {
4807 if (pmb->u.mb.un.varCfgPort.gbg)
4808 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
4810 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4811 "0443 Adapter did not grant "
4815 phba->hbq_get = NULL;
4816 phba->port_gp = phba->mbox->us.s2.port;
4820 mempool_free(pmb, phba->mbox_mem_pool);
4826 * lpfc_sli_hba_setup - SLI initialization function
4827 * @phba: Pointer to HBA context object.
4829 * This function is the main SLI initialization function. This function
4830 * is called by the HBA initialization code, HBA reset code and HBA
4831 * error attention handler code. Caller is not required to hold any
4832 * locks. This function issues config_port mailbox command to configure
4833 * the SLI, setup iocb rings and HBQ rings. In the end the function
4834 * calls the config_port_post function to issue init_link mailbox
4835 * command and to start the discovery. The function will return zero
4836 * if successful, else it will return negative error code.
4839 lpfc_sli_hba_setup(struct lpfc_hba *phba)
4845 switch (phba->cfg_sli_mode) {
4847 if (phba->cfg_enable_npiv) {
4848 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4849 "1824 NPIV enabled: Override sli_mode "
4850 "parameter (%d) to auto (0).\n",
4851 phba->cfg_sli_mode);
4860 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4861 "1819 Unrecognized sli_mode parameter: %d.\n",
4862 phba->cfg_sli_mode);
4866 phba->fcp_embed_io = 0; /* SLI4 FC support only */
4868 rc = lpfc_sli_config_port(phba, mode);
4870 if (rc && phba->cfg_sli_mode == 3)
4871 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4872 "1820 Unable to select SLI-3. "
4873 "Not supported by adapter.\n");
4874 if (rc && mode != 2)
4875 rc = lpfc_sli_config_port(phba, 2);
4876 else if (rc && mode == 2)
4877 rc = lpfc_sli_config_port(phba, 3);
4879 goto lpfc_sli_hba_setup_error;
4881 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4882 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
4883 rc = pci_enable_pcie_error_reporting(phba->pcidev);
4885 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4886 "2709 This device supports "
4887 "Advanced Error Reporting (AER)\n");
4888 spin_lock_irq(&phba->hbalock);
4889 phba->hba_flag |= HBA_AER_ENABLED;
4890 spin_unlock_irq(&phba->hbalock);
4892 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4893 "2708 This device does not support "
4894 "Advanced Error Reporting (AER): %d\n",
4896 phba->cfg_aer_support = 0;
4900 if (phba->sli_rev == 3) {
4901 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
4902 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
4904 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
4905 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
4906 phba->sli3_options = 0;
4909 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4910 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
4911 phba->sli_rev, phba->max_vpi);
4912 rc = lpfc_sli_ring_map(phba);
4915 goto lpfc_sli_hba_setup_error;
4917 /* Initialize VPIs. */
4918 if (phba->sli_rev == LPFC_SLI_REV3) {
4920 * The VPI bitmask and physical ID array are allocated
4921 * and initialized once only - at driver load. A port
4922 * reset doesn't need to reinitialize this memory.
4924 if ((phba->vpi_bmask == NULL) && (phba->vpi_ids == NULL)) {
4925 longs = (phba->max_vpi + BITS_PER_LONG) / BITS_PER_LONG;
4926 phba->vpi_bmask = kzalloc(longs * sizeof(unsigned long),
4928 if (!phba->vpi_bmask) {
4930 goto lpfc_sli_hba_setup_error;
4933 phba->vpi_ids = kzalloc(
4934 (phba->max_vpi+1) * sizeof(uint16_t),
4936 if (!phba->vpi_ids) {
4937 kfree(phba->vpi_bmask);
4939 goto lpfc_sli_hba_setup_error;
4941 for (i = 0; i < phba->max_vpi; i++)
4942 phba->vpi_ids[i] = i;
4947 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
4948 rc = lpfc_sli_hbq_setup(phba);
4950 goto lpfc_sli_hba_setup_error;
4952 spin_lock_irq(&phba->hbalock);
4953 phba->sli.sli_flag |= LPFC_PROCESS_LA;
4954 spin_unlock_irq(&phba->hbalock);
4956 rc = lpfc_config_port_post(phba);
4958 goto lpfc_sli_hba_setup_error;
4962 lpfc_sli_hba_setup_error:
4963 phba->link_state = LPFC_HBA_ERROR;
4964 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4965 "0445 Firmware initialization failed\n");
4970 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
4971 * @phba: Pointer to HBA context object.
4972 * @mboxq: mailbox pointer.
4973 * This function issue a dump mailbox command to read config region
4974 * 23 and parse the records in the region and populate driver
4978 lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba)
4980 LPFC_MBOXQ_t *mboxq;
4981 struct lpfc_dmabuf *mp;
4982 struct lpfc_mqe *mqe;
4983 uint32_t data_length;
4986 /* Program the default value of vlan_id and fc_map */
4987 phba->valid_vlan = 0;
4988 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4989 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4990 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4992 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4996 mqe = &mboxq->u.mqe;
4997 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq)) {
4999 goto out_free_mboxq;
5002 mp = (struct lpfc_dmabuf *) mboxq->context1;
5003 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5005 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5006 "(%d):2571 Mailbox cmd x%x Status x%x "
5007 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
5008 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
5009 "CQ: x%x x%x x%x x%x\n",
5010 mboxq->vport ? mboxq->vport->vpi : 0,
5011 bf_get(lpfc_mqe_command, mqe),
5012 bf_get(lpfc_mqe_status, mqe),
5013 mqe->un.mb_words[0], mqe->un.mb_words[1],
5014 mqe->un.mb_words[2], mqe->un.mb_words[3],
5015 mqe->un.mb_words[4], mqe->un.mb_words[5],
5016 mqe->un.mb_words[6], mqe->un.mb_words[7],
5017 mqe->un.mb_words[8], mqe->un.mb_words[9],
5018 mqe->un.mb_words[10], mqe->un.mb_words[11],
5019 mqe->un.mb_words[12], mqe->un.mb_words[13],
5020 mqe->un.mb_words[14], mqe->un.mb_words[15],
5021 mqe->un.mb_words[16], mqe->un.mb_words[50],
5023 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
5024 mboxq->mcqe.trailer);
5027 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5030 goto out_free_mboxq;
5032 data_length = mqe->un.mb_words[5];
5033 if (data_length > DMP_RGN23_SIZE) {
5034 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5037 goto out_free_mboxq;
5040 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
5041 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5046 mempool_free(mboxq, phba->mbox_mem_pool);
5051 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
5052 * @phba: pointer to lpfc hba data structure.
5053 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
5054 * @vpd: pointer to the memory to hold resulting port vpd data.
5055 * @vpd_size: On input, the number of bytes allocated to @vpd.
5056 * On output, the number of data bytes in @vpd.
5058 * This routine executes a READ_REV SLI4 mailbox command. In
5059 * addition, this routine gets the port vpd data.
5063 * -ENOMEM - could not allocated memory.
5066 lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
5067 uint8_t *vpd, uint32_t *vpd_size)
5071 struct lpfc_dmabuf *dmabuf;
5072 struct lpfc_mqe *mqe;
5074 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5079 * Get a DMA buffer for the vpd data resulting from the READ_REV
5082 dma_size = *vpd_size;
5083 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, dma_size,
5084 &dmabuf->phys, GFP_KERNEL);
5085 if (!dmabuf->virt) {
5091 * The SLI4 implementation of READ_REV conflicts at word1,
5092 * bits 31:16 and SLI4 adds vpd functionality not present
5093 * in SLI3. This code corrects the conflicts.
5095 lpfc_read_rev(phba, mboxq);
5096 mqe = &mboxq->u.mqe;
5097 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
5098 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
5099 mqe->un.read_rev.word1 &= 0x0000FFFF;
5100 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
5101 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
5103 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5105 dma_free_coherent(&phba->pcidev->dev, dma_size,
5106 dmabuf->virt, dmabuf->phys);
5112 * The available vpd length cannot be bigger than the
5113 * DMA buffer passed to the port. Catch the less than
5114 * case and update the caller's size.
5116 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
5117 *vpd_size = mqe->un.read_rev.avail_vpd_len;
5119 memcpy(vpd, dmabuf->virt, *vpd_size);
5121 dma_free_coherent(&phba->pcidev->dev, dma_size,
5122 dmabuf->virt, dmabuf->phys);
5128 * lpfc_sli4_retrieve_pport_name - Retrieve SLI4 device physical port name
5129 * @phba: pointer to lpfc hba data structure.
5131 * This routine retrieves SLI4 device physical port name this PCI function
5136 * otherwise - failed to retrieve physical port name
5139 lpfc_sli4_retrieve_pport_name(struct lpfc_hba *phba)
5141 LPFC_MBOXQ_t *mboxq;
5142 struct lpfc_mbx_get_cntl_attributes *mbx_cntl_attr;
5143 struct lpfc_controller_attribute *cntl_attr;
5144 struct lpfc_mbx_get_port_name *get_port_name;
5145 void *virtaddr = NULL;
5146 uint32_t alloclen, reqlen;
5147 uint32_t shdr_status, shdr_add_status;
5148 union lpfc_sli4_cfg_shdr *shdr;
5149 char cport_name = 0;
5152 /* We assume nothing at this point */
5153 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
5154 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_NON;
5156 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5159 /* obtain link type and link number via READ_CONFIG */
5160 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
5161 lpfc_sli4_read_config(phba);
5162 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL)
5163 goto retrieve_ppname;
5165 /* obtain link type and link number via COMMON_GET_CNTL_ATTRIBUTES */
5166 reqlen = sizeof(struct lpfc_mbx_get_cntl_attributes);
5167 alloclen = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5168 LPFC_MBOX_OPCODE_GET_CNTL_ATTRIBUTES, reqlen,
5169 LPFC_SLI4_MBX_NEMBED);
5170 if (alloclen < reqlen) {
5171 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5172 "3084 Allocated DMA memory size (%d) is "
5173 "less than the requested DMA memory size "
5174 "(%d)\n", alloclen, reqlen);
5176 goto out_free_mboxq;
5178 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5179 virtaddr = mboxq->sge_array->addr[0];
5180 mbx_cntl_attr = (struct lpfc_mbx_get_cntl_attributes *)virtaddr;
5181 shdr = &mbx_cntl_attr->cfg_shdr;
5182 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5183 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5184 if (shdr_status || shdr_add_status || rc) {
5185 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5186 "3085 Mailbox x%x (x%x/x%x) failed, "
5187 "rc:x%x, status:x%x, add_status:x%x\n",
5188 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5189 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
5190 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
5191 rc, shdr_status, shdr_add_status);
5193 goto out_free_mboxq;
5195 cntl_attr = &mbx_cntl_attr->cntl_attr;
5196 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
5197 phba->sli4_hba.lnk_info.lnk_tp =
5198 bf_get(lpfc_cntl_attr_lnk_type, cntl_attr);
5199 phba->sli4_hba.lnk_info.lnk_no =
5200 bf_get(lpfc_cntl_attr_lnk_numb, cntl_attr);
5201 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5202 "3086 lnk_type:%d, lnk_numb:%d\n",
5203 phba->sli4_hba.lnk_info.lnk_tp,
5204 phba->sli4_hba.lnk_info.lnk_no);
5207 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5208 LPFC_MBOX_OPCODE_GET_PORT_NAME,
5209 sizeof(struct lpfc_mbx_get_port_name) -
5210 sizeof(struct lpfc_sli4_cfg_mhdr),
5211 LPFC_SLI4_MBX_EMBED);
5212 get_port_name = &mboxq->u.mqe.un.get_port_name;
5213 shdr = (union lpfc_sli4_cfg_shdr *)&get_port_name->header.cfg_shdr;
5214 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_OPCODE_VERSION_1);
5215 bf_set(lpfc_mbx_get_port_name_lnk_type, &get_port_name->u.request,
5216 phba->sli4_hba.lnk_info.lnk_tp);
5217 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5218 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5219 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5220 if (shdr_status || shdr_add_status || rc) {
5221 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5222 "3087 Mailbox x%x (x%x/x%x) failed: "
5223 "rc:x%x, status:x%x, add_status:x%x\n",
5224 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5225 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
5226 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
5227 rc, shdr_status, shdr_add_status);
5229 goto out_free_mboxq;
5231 switch (phba->sli4_hba.lnk_info.lnk_no) {
5232 case LPFC_LINK_NUMBER_0:
5233 cport_name = bf_get(lpfc_mbx_get_port_name_name0,
5234 &get_port_name->u.response);
5235 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5237 case LPFC_LINK_NUMBER_1:
5238 cport_name = bf_get(lpfc_mbx_get_port_name_name1,
5239 &get_port_name->u.response);
5240 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5242 case LPFC_LINK_NUMBER_2:
5243 cport_name = bf_get(lpfc_mbx_get_port_name_name2,
5244 &get_port_name->u.response);
5245 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5247 case LPFC_LINK_NUMBER_3:
5248 cport_name = bf_get(lpfc_mbx_get_port_name_name3,
5249 &get_port_name->u.response);
5250 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5256 if (phba->sli4_hba.pport_name_sta == LPFC_SLI4_PPNAME_GET) {
5257 phba->Port[0] = cport_name;
5258 phba->Port[1] = '\0';
5259 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5260 "3091 SLI get port name: %s\n", phba->Port);
5264 if (rc != MBX_TIMEOUT) {
5265 if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
5266 lpfc_sli4_mbox_cmd_free(phba, mboxq);
5268 mempool_free(mboxq, phba->mbox_mem_pool);
5274 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
5275 * @phba: pointer to lpfc hba data structure.
5277 * This routine is called to explicitly arm the SLI4 device's completion and
5281 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
5285 lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM);
5286 lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM);
5287 if (phba->sli4_hba.nvmels_cq)
5288 lpfc_sli4_cq_release(phba->sli4_hba.nvmels_cq,
5291 if (phba->sli4_hba.fcp_cq)
5292 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++)
5293 lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[qidx],
5296 if (phba->sli4_hba.nvme_cq)
5297 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++)
5298 lpfc_sli4_cq_release(phba->sli4_hba.nvme_cq[qidx],
5302 lpfc_sli4_cq_release(phba->sli4_hba.oas_cq, LPFC_QUEUE_REARM);
5304 if (phba->sli4_hba.hba_eq)
5305 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++)
5306 lpfc_sli4_eq_release(phba->sli4_hba.hba_eq[qidx],
5309 if (phba->nvmet_support) {
5310 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) {
5311 lpfc_sli4_cq_release(
5312 phba->sli4_hba.nvmet_cqset[qidx],
5318 lpfc_sli4_eq_release(phba->sli4_hba.fof_eq, LPFC_QUEUE_REARM);
5322 * lpfc_sli4_get_avail_extnt_rsrc - Get available resource extent count.
5323 * @phba: Pointer to HBA context object.
5324 * @type: The resource extent type.
5325 * @extnt_count: buffer to hold port available extent count.
5326 * @extnt_size: buffer to hold element count per extent.
5328 * This function calls the port and retrievs the number of available
5329 * extents and their size for a particular extent type.
5331 * Returns: 0 if successful. Nonzero otherwise.
5334 lpfc_sli4_get_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type,
5335 uint16_t *extnt_count, uint16_t *extnt_size)
5340 struct lpfc_mbx_get_rsrc_extent_info *rsrc_info;
5343 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5347 /* Find out how many extents are available for this resource type */
5348 length = (sizeof(struct lpfc_mbx_get_rsrc_extent_info) -
5349 sizeof(struct lpfc_sli4_cfg_mhdr));
5350 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5351 LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO,
5352 length, LPFC_SLI4_MBX_EMBED);
5354 /* Send an extents count of 0 - the GET doesn't use it. */
5355 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5356 LPFC_SLI4_MBX_EMBED);
5362 if (!phba->sli4_hba.intr_enable)
5363 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5365 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5366 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5373 rsrc_info = &mbox->u.mqe.un.rsrc_extent_info;
5374 if (bf_get(lpfc_mbox_hdr_status,
5375 &rsrc_info->header.cfg_shdr.response)) {
5376 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5377 "2930 Failed to get resource extents "
5378 "Status 0x%x Add'l Status 0x%x\n",
5379 bf_get(lpfc_mbox_hdr_status,
5380 &rsrc_info->header.cfg_shdr.response),
5381 bf_get(lpfc_mbox_hdr_add_status,
5382 &rsrc_info->header.cfg_shdr.response));
5387 *extnt_count = bf_get(lpfc_mbx_get_rsrc_extent_info_cnt,
5389 *extnt_size = bf_get(lpfc_mbx_get_rsrc_extent_info_size,
5392 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5393 "3162 Retrieved extents type-%d from port: count:%d, "
5394 "size:%d\n", type, *extnt_count, *extnt_size);
5397 mempool_free(mbox, phba->mbox_mem_pool);
5402 * lpfc_sli4_chk_avail_extnt_rsrc - Check for available SLI4 resource extents.
5403 * @phba: Pointer to HBA context object.
5404 * @type: The extent type to check.
5406 * This function reads the current available extents from the port and checks
5407 * if the extent count or extent size has changed since the last access.
5408 * Callers use this routine post port reset to understand if there is a
5409 * extent reprovisioning requirement.
5412 * -Error: error indicates problem.
5413 * 1: Extent count or size has changed.
5417 lpfc_sli4_chk_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type)
5419 uint16_t curr_ext_cnt, rsrc_ext_cnt;
5420 uint16_t size_diff, rsrc_ext_size;
5422 struct lpfc_rsrc_blks *rsrc_entry;
5423 struct list_head *rsrc_blk_list = NULL;
5427 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5434 case LPFC_RSC_TYPE_FCOE_RPI:
5435 rsrc_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5437 case LPFC_RSC_TYPE_FCOE_VPI:
5438 rsrc_blk_list = &phba->lpfc_vpi_blk_list;
5440 case LPFC_RSC_TYPE_FCOE_XRI:
5441 rsrc_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5443 case LPFC_RSC_TYPE_FCOE_VFI:
5444 rsrc_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5450 list_for_each_entry(rsrc_entry, rsrc_blk_list, list) {
5452 if (rsrc_entry->rsrc_size != rsrc_ext_size)
5456 if (curr_ext_cnt != rsrc_ext_cnt || size_diff != 0)
5463 * lpfc_sli4_cfg_post_extnts -
5464 * @phba: Pointer to HBA context object.
5465 * @extnt_cnt - number of available extents.
5466 * @type - the extent type (rpi, xri, vfi, vpi).
5467 * @emb - buffer to hold either MBX_EMBED or MBX_NEMBED operation.
5468 * @mbox - pointer to the caller's allocated mailbox structure.
5470 * This function executes the extents allocation request. It also
5471 * takes care of the amount of memory needed to allocate or get the
5472 * allocated extents. It is the caller's responsibility to evaluate
5476 * -Error: Error value describes the condition found.
5480 lpfc_sli4_cfg_post_extnts(struct lpfc_hba *phba, uint16_t extnt_cnt,
5481 uint16_t type, bool *emb, LPFC_MBOXQ_t *mbox)
5486 uint32_t alloc_len, mbox_tmo;
5488 /* Calculate the total requested length of the dma memory */
5489 req_len = extnt_cnt * sizeof(uint16_t);
5492 * Calculate the size of an embedded mailbox. The uint32_t
5493 * accounts for extents-specific word.
5495 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
5499 * Presume the allocation and response will fit into an embedded
5500 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5502 *emb = LPFC_SLI4_MBX_EMBED;
5503 if (req_len > emb_len) {
5504 req_len = extnt_cnt * sizeof(uint16_t) +
5505 sizeof(union lpfc_sli4_cfg_shdr) +
5507 *emb = LPFC_SLI4_MBX_NEMBED;
5510 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5511 LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT,
5513 if (alloc_len < req_len) {
5514 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5515 "2982 Allocated DMA memory size (x%x) is "
5516 "less than the requested DMA memory "
5517 "size (x%x)\n", alloc_len, req_len);
5520 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, extnt_cnt, type, *emb);
5524 if (!phba->sli4_hba.intr_enable)
5525 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5527 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5528 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5537 * lpfc_sli4_alloc_extent - Allocate an SLI4 resource extent.
5538 * @phba: Pointer to HBA context object.
5539 * @type: The resource extent type to allocate.
5541 * This function allocates the number of elements for the specified
5545 lpfc_sli4_alloc_extent(struct lpfc_hba *phba, uint16_t type)
5548 uint16_t rsrc_id_cnt, rsrc_cnt, rsrc_size;
5549 uint16_t rsrc_id, rsrc_start, j, k;
5552 unsigned long longs;
5553 unsigned long *bmask;
5554 struct lpfc_rsrc_blks *rsrc_blks;
5557 struct lpfc_id_range *id_array = NULL;
5558 void *virtaddr = NULL;
5559 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5560 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5561 struct list_head *ext_blk_list;
5563 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5569 if ((rsrc_cnt == 0) || (rsrc_size == 0)) {
5570 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5571 "3009 No available Resource Extents "
5572 "for resource type 0x%x: Count: 0x%x, "
5573 "Size 0x%x\n", type, rsrc_cnt,
5578 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_INIT | LOG_SLI,
5579 "2903 Post resource extents type-0x%x: "
5580 "count:%d, size %d\n", type, rsrc_cnt, rsrc_size);
5582 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5586 rc = lpfc_sli4_cfg_post_extnts(phba, rsrc_cnt, type, &emb, mbox);
5593 * Figure out where the response is located. Then get local pointers
5594 * to the response data. The port does not guarantee to respond to
5595 * all extents counts request so update the local variable with the
5596 * allocated count from the port.
5598 if (emb == LPFC_SLI4_MBX_EMBED) {
5599 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
5600 id_array = &rsrc_ext->u.rsp.id[0];
5601 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
5603 virtaddr = mbox->sge_array->addr[0];
5604 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
5605 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
5606 id_array = &n_rsrc->id;
5609 longs = ((rsrc_cnt * rsrc_size) + BITS_PER_LONG - 1) / BITS_PER_LONG;
5610 rsrc_id_cnt = rsrc_cnt * rsrc_size;
5613 * Based on the resource size and count, correct the base and max
5616 length = sizeof(struct lpfc_rsrc_blks);
5618 case LPFC_RSC_TYPE_FCOE_RPI:
5619 phba->sli4_hba.rpi_bmask = kzalloc(longs *
5620 sizeof(unsigned long),
5622 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5626 phba->sli4_hba.rpi_ids = kzalloc(rsrc_id_cnt *
5629 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5630 kfree(phba->sli4_hba.rpi_bmask);
5636 * The next_rpi was initialized with the maximum available
5637 * count but the port may allocate a smaller number. Catch
5638 * that case and update the next_rpi.
5640 phba->sli4_hba.next_rpi = rsrc_id_cnt;
5642 /* Initialize local ptrs for common extent processing later. */
5643 bmask = phba->sli4_hba.rpi_bmask;
5644 ids = phba->sli4_hba.rpi_ids;
5645 ext_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5647 case LPFC_RSC_TYPE_FCOE_VPI:
5648 phba->vpi_bmask = kzalloc(longs *
5649 sizeof(unsigned long),
5651 if (unlikely(!phba->vpi_bmask)) {
5655 phba->vpi_ids = kzalloc(rsrc_id_cnt *
5658 if (unlikely(!phba->vpi_ids)) {
5659 kfree(phba->vpi_bmask);
5664 /* Initialize local ptrs for common extent processing later. */
5665 bmask = phba->vpi_bmask;
5666 ids = phba->vpi_ids;
5667 ext_blk_list = &phba->lpfc_vpi_blk_list;
5669 case LPFC_RSC_TYPE_FCOE_XRI:
5670 phba->sli4_hba.xri_bmask = kzalloc(longs *
5671 sizeof(unsigned long),
5673 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5677 phba->sli4_hba.max_cfg_param.xri_used = 0;
5678 phba->sli4_hba.xri_ids = kzalloc(rsrc_id_cnt *
5681 if (unlikely(!phba->sli4_hba.xri_ids)) {
5682 kfree(phba->sli4_hba.xri_bmask);
5687 /* Initialize local ptrs for common extent processing later. */
5688 bmask = phba->sli4_hba.xri_bmask;
5689 ids = phba->sli4_hba.xri_ids;
5690 ext_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5692 case LPFC_RSC_TYPE_FCOE_VFI:
5693 phba->sli4_hba.vfi_bmask = kzalloc(longs *
5694 sizeof(unsigned long),
5696 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5700 phba->sli4_hba.vfi_ids = kzalloc(rsrc_id_cnt *
5703 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5704 kfree(phba->sli4_hba.vfi_bmask);
5709 /* Initialize local ptrs for common extent processing later. */
5710 bmask = phba->sli4_hba.vfi_bmask;
5711 ids = phba->sli4_hba.vfi_ids;
5712 ext_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5715 /* Unsupported Opcode. Fail call. */
5719 ext_blk_list = NULL;
5724 * Complete initializing the extent configuration with the
5725 * allocated ids assigned to this function. The bitmask serves
5726 * as an index into the array and manages the available ids. The
5727 * array just stores the ids communicated to the port via the wqes.
5729 for (i = 0, j = 0, k = 0; i < rsrc_cnt; i++) {
5731 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_0,
5734 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_1,
5737 rsrc_blks = kzalloc(length, GFP_KERNEL);
5738 if (unlikely(!rsrc_blks)) {
5744 rsrc_blks->rsrc_start = rsrc_id;
5745 rsrc_blks->rsrc_size = rsrc_size;
5746 list_add_tail(&rsrc_blks->list, ext_blk_list);
5747 rsrc_start = rsrc_id;
5748 if ((type == LPFC_RSC_TYPE_FCOE_XRI) && (j == 0)) {
5749 phba->sli4_hba.scsi_xri_start = rsrc_start +
5750 lpfc_sli4_get_iocb_cnt(phba);
5751 phba->sli4_hba.nvme_xri_start =
5752 phba->sli4_hba.scsi_xri_start +
5753 phba->sli4_hba.scsi_xri_max;
5756 while (rsrc_id < (rsrc_start + rsrc_size)) {
5761 /* Entire word processed. Get next word.*/
5766 lpfc_sli4_mbox_cmd_free(phba, mbox);
5773 * lpfc_sli4_dealloc_extent - Deallocate an SLI4 resource extent.
5774 * @phba: Pointer to HBA context object.
5775 * @type: the extent's type.
5777 * This function deallocates all extents of a particular resource type.
5778 * SLI4 does not allow for deallocating a particular extent range. It
5779 * is the caller's responsibility to release all kernel memory resources.
5782 lpfc_sli4_dealloc_extent(struct lpfc_hba *phba, uint16_t type)
5785 uint32_t length, mbox_tmo = 0;
5787 struct lpfc_mbx_dealloc_rsrc_extents *dealloc_rsrc;
5788 struct lpfc_rsrc_blks *rsrc_blk, *rsrc_blk_next;
5790 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5795 * This function sends an embedded mailbox because it only sends the
5796 * the resource type. All extents of this type are released by the
5799 length = (sizeof(struct lpfc_mbx_dealloc_rsrc_extents) -
5800 sizeof(struct lpfc_sli4_cfg_mhdr));
5801 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5802 LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT,
5803 length, LPFC_SLI4_MBX_EMBED);
5805 /* Send an extents count of 0 - the dealloc doesn't use it. */
5806 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5807 LPFC_SLI4_MBX_EMBED);
5812 if (!phba->sli4_hba.intr_enable)
5813 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5815 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5816 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5823 dealloc_rsrc = &mbox->u.mqe.un.dealloc_rsrc_extents;
5824 if (bf_get(lpfc_mbox_hdr_status,
5825 &dealloc_rsrc->header.cfg_shdr.response)) {
5826 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5827 "2919 Failed to release resource extents "
5828 "for type %d - Status 0x%x Add'l Status 0x%x. "
5829 "Resource memory not released.\n",
5831 bf_get(lpfc_mbox_hdr_status,
5832 &dealloc_rsrc->header.cfg_shdr.response),
5833 bf_get(lpfc_mbox_hdr_add_status,
5834 &dealloc_rsrc->header.cfg_shdr.response));
5839 /* Release kernel memory resources for the specific type. */
5841 case LPFC_RSC_TYPE_FCOE_VPI:
5842 kfree(phba->vpi_bmask);
5843 kfree(phba->vpi_ids);
5844 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5845 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5846 &phba->lpfc_vpi_blk_list, list) {
5847 list_del_init(&rsrc_blk->list);
5850 phba->sli4_hba.max_cfg_param.vpi_used = 0;
5852 case LPFC_RSC_TYPE_FCOE_XRI:
5853 kfree(phba->sli4_hba.xri_bmask);
5854 kfree(phba->sli4_hba.xri_ids);
5855 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5856 &phba->sli4_hba.lpfc_xri_blk_list, list) {
5857 list_del_init(&rsrc_blk->list);
5861 case LPFC_RSC_TYPE_FCOE_VFI:
5862 kfree(phba->sli4_hba.vfi_bmask);
5863 kfree(phba->sli4_hba.vfi_ids);
5864 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5865 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5866 &phba->sli4_hba.lpfc_vfi_blk_list, list) {
5867 list_del_init(&rsrc_blk->list);
5871 case LPFC_RSC_TYPE_FCOE_RPI:
5872 /* RPI bitmask and physical id array are cleaned up earlier. */
5873 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5874 &phba->sli4_hba.lpfc_rpi_blk_list, list) {
5875 list_del_init(&rsrc_blk->list);
5883 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5886 mempool_free(mbox, phba->mbox_mem_pool);
5891 lpfc_set_features(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox,
5896 len = sizeof(struct lpfc_mbx_set_feature) -
5897 sizeof(struct lpfc_sli4_cfg_mhdr);
5898 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5899 LPFC_MBOX_OPCODE_SET_FEATURES, len,
5900 LPFC_SLI4_MBX_EMBED);
5903 case LPFC_SET_UE_RECOVERY:
5904 bf_set(lpfc_mbx_set_feature_UER,
5905 &mbox->u.mqe.un.set_feature, 1);
5906 mbox->u.mqe.un.set_feature.feature = LPFC_SET_UE_RECOVERY;
5907 mbox->u.mqe.un.set_feature.param_len = 8;
5909 case LPFC_SET_MDS_DIAGS:
5910 bf_set(lpfc_mbx_set_feature_mds,
5911 &mbox->u.mqe.un.set_feature, 1);
5912 bf_set(lpfc_mbx_set_feature_mds_deep_loopbk,
5913 &mbox->u.mqe.un.set_feature, 1);
5914 mbox->u.mqe.un.set_feature.feature = LPFC_SET_MDS_DIAGS;
5915 mbox->u.mqe.un.set_feature.param_len = 8;
5923 * lpfc_sli4_alloc_resource_identifiers - Allocate all SLI4 resource extents.
5924 * @phba: Pointer to HBA context object.
5926 * This function allocates all SLI4 resource identifiers.
5929 lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba *phba)
5931 int i, rc, error = 0;
5932 uint16_t count, base;
5933 unsigned long longs;
5935 if (!phba->sli4_hba.rpi_hdrs_in_use)
5936 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
5937 if (phba->sli4_hba.extents_in_use) {
5939 * The port supports resource extents. The XRI, VPI, VFI, RPI
5940 * resource extent count must be read and allocated before
5941 * provisioning the resource id arrays.
5943 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
5944 LPFC_IDX_RSRC_RDY) {
5946 * Extent-based resources are set - the driver could
5947 * be in a port reset. Figure out if any corrective
5948 * actions need to be taken.
5950 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5951 LPFC_RSC_TYPE_FCOE_VFI);
5954 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5955 LPFC_RSC_TYPE_FCOE_VPI);
5958 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5959 LPFC_RSC_TYPE_FCOE_XRI);
5962 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5963 LPFC_RSC_TYPE_FCOE_RPI);
5968 * It's possible that the number of resources
5969 * provided to this port instance changed between
5970 * resets. Detect this condition and reallocate
5971 * resources. Otherwise, there is no action.
5974 lpfc_printf_log(phba, KERN_INFO,
5975 LOG_MBOX | LOG_INIT,
5976 "2931 Detected extent resource "
5977 "change. Reallocating all "
5979 rc = lpfc_sli4_dealloc_extent(phba,
5980 LPFC_RSC_TYPE_FCOE_VFI);
5981 rc = lpfc_sli4_dealloc_extent(phba,
5982 LPFC_RSC_TYPE_FCOE_VPI);
5983 rc = lpfc_sli4_dealloc_extent(phba,
5984 LPFC_RSC_TYPE_FCOE_XRI);
5985 rc = lpfc_sli4_dealloc_extent(phba,
5986 LPFC_RSC_TYPE_FCOE_RPI);
5991 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
5995 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
5999 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
6003 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
6006 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
6011 * The port does not support resource extents. The XRI, VPI,
6012 * VFI, RPI resource ids were determined from READ_CONFIG.
6013 * Just allocate the bitmasks and provision the resource id
6014 * arrays. If a port reset is active, the resources don't
6015 * need any action - just exit.
6017 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
6018 LPFC_IDX_RSRC_RDY) {
6019 lpfc_sli4_dealloc_resource_identifiers(phba);
6020 lpfc_sli4_remove_rpis(phba);
6023 count = phba->sli4_hba.max_cfg_param.max_rpi;
6025 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6026 "3279 Invalid provisioning of "
6031 base = phba->sli4_hba.max_cfg_param.rpi_base;
6032 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6033 phba->sli4_hba.rpi_bmask = kzalloc(longs *
6034 sizeof(unsigned long),
6036 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
6040 phba->sli4_hba.rpi_ids = kzalloc(count *
6043 if (unlikely(!phba->sli4_hba.rpi_ids)) {
6045 goto free_rpi_bmask;
6048 for (i = 0; i < count; i++)
6049 phba->sli4_hba.rpi_ids[i] = base + i;
6052 count = phba->sli4_hba.max_cfg_param.max_vpi;
6054 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6055 "3280 Invalid provisioning of "
6060 base = phba->sli4_hba.max_cfg_param.vpi_base;
6061 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6062 phba->vpi_bmask = kzalloc(longs *
6063 sizeof(unsigned long),
6065 if (unlikely(!phba->vpi_bmask)) {
6069 phba->vpi_ids = kzalloc(count *
6072 if (unlikely(!phba->vpi_ids)) {
6074 goto free_vpi_bmask;
6077 for (i = 0; i < count; i++)
6078 phba->vpi_ids[i] = base + i;
6081 count = phba->sli4_hba.max_cfg_param.max_xri;
6083 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6084 "3281 Invalid provisioning of "
6089 base = phba->sli4_hba.max_cfg_param.xri_base;
6090 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6091 phba->sli4_hba.xri_bmask = kzalloc(longs *
6092 sizeof(unsigned long),
6094 if (unlikely(!phba->sli4_hba.xri_bmask)) {
6098 phba->sli4_hba.max_cfg_param.xri_used = 0;
6099 phba->sli4_hba.xri_ids = kzalloc(count *
6102 if (unlikely(!phba->sli4_hba.xri_ids)) {
6104 goto free_xri_bmask;
6107 for (i = 0; i < count; i++)
6108 phba->sli4_hba.xri_ids[i] = base + i;
6111 count = phba->sli4_hba.max_cfg_param.max_vfi;
6113 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6114 "3282 Invalid provisioning of "
6119 base = phba->sli4_hba.max_cfg_param.vfi_base;
6120 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6121 phba->sli4_hba.vfi_bmask = kzalloc(longs *
6122 sizeof(unsigned long),
6124 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
6128 phba->sli4_hba.vfi_ids = kzalloc(count *
6131 if (unlikely(!phba->sli4_hba.vfi_ids)) {
6133 goto free_vfi_bmask;
6136 for (i = 0; i < count; i++)
6137 phba->sli4_hba.vfi_ids[i] = base + i;
6140 * Mark all resources ready. An HBA reset doesn't need
6141 * to reset the initialization.
6143 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
6149 kfree(phba->sli4_hba.vfi_bmask);
6150 phba->sli4_hba.vfi_bmask = NULL;
6152 kfree(phba->sli4_hba.xri_ids);
6153 phba->sli4_hba.xri_ids = NULL;
6155 kfree(phba->sli4_hba.xri_bmask);
6156 phba->sli4_hba.xri_bmask = NULL;
6158 kfree(phba->vpi_ids);
6159 phba->vpi_ids = NULL;
6161 kfree(phba->vpi_bmask);
6162 phba->vpi_bmask = NULL;
6164 kfree(phba->sli4_hba.rpi_ids);
6165 phba->sli4_hba.rpi_ids = NULL;
6167 kfree(phba->sli4_hba.rpi_bmask);
6168 phba->sli4_hba.rpi_bmask = NULL;
6174 * lpfc_sli4_dealloc_resource_identifiers - Deallocate all SLI4 resource extents.
6175 * @phba: Pointer to HBA context object.
6177 * This function allocates the number of elements for the specified
6181 lpfc_sli4_dealloc_resource_identifiers(struct lpfc_hba *phba)
6183 if (phba->sli4_hba.extents_in_use) {
6184 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
6185 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
6186 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
6187 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
6189 kfree(phba->vpi_bmask);
6190 phba->sli4_hba.max_cfg_param.vpi_used = 0;
6191 kfree(phba->vpi_ids);
6192 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6193 kfree(phba->sli4_hba.xri_bmask);
6194 kfree(phba->sli4_hba.xri_ids);
6195 kfree(phba->sli4_hba.vfi_bmask);
6196 kfree(phba->sli4_hba.vfi_ids);
6197 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6198 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6205 * lpfc_sli4_get_allocated_extnts - Get the port's allocated extents.
6206 * @phba: Pointer to HBA context object.
6207 * @type: The resource extent type.
6208 * @extnt_count: buffer to hold port extent count response
6209 * @extnt_size: buffer to hold port extent size response.
6211 * This function calls the port to read the host allocated extents
6212 * for a particular type.
6215 lpfc_sli4_get_allocated_extnts(struct lpfc_hba *phba, uint16_t type,
6216 uint16_t *extnt_cnt, uint16_t *extnt_size)
6220 uint16_t curr_blks = 0;
6221 uint32_t req_len, emb_len;
6222 uint32_t alloc_len, mbox_tmo;
6223 struct list_head *blk_list_head;
6224 struct lpfc_rsrc_blks *rsrc_blk;
6226 void *virtaddr = NULL;
6227 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
6228 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
6229 union lpfc_sli4_cfg_shdr *shdr;
6232 case LPFC_RSC_TYPE_FCOE_VPI:
6233 blk_list_head = &phba->lpfc_vpi_blk_list;
6235 case LPFC_RSC_TYPE_FCOE_XRI:
6236 blk_list_head = &phba->sli4_hba.lpfc_xri_blk_list;
6238 case LPFC_RSC_TYPE_FCOE_VFI:
6239 blk_list_head = &phba->sli4_hba.lpfc_vfi_blk_list;
6241 case LPFC_RSC_TYPE_FCOE_RPI:
6242 blk_list_head = &phba->sli4_hba.lpfc_rpi_blk_list;
6248 /* Count the number of extents currently allocatd for this type. */
6249 list_for_each_entry(rsrc_blk, blk_list_head, list) {
6250 if (curr_blks == 0) {
6252 * The GET_ALLOCATED mailbox does not return the size,
6253 * just the count. The size should be just the size
6254 * stored in the current allocated block and all sizes
6255 * for an extent type are the same so set the return
6258 *extnt_size = rsrc_blk->rsrc_size;
6264 * Calculate the size of an embedded mailbox. The uint32_t
6265 * accounts for extents-specific word.
6267 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
6271 * Presume the allocation and response will fit into an embedded
6272 * mailbox. If not true, reconfigure to a non-embedded mailbox.
6274 emb = LPFC_SLI4_MBX_EMBED;
6276 if (req_len > emb_len) {
6277 req_len = curr_blks * sizeof(uint16_t) +
6278 sizeof(union lpfc_sli4_cfg_shdr) +
6280 emb = LPFC_SLI4_MBX_NEMBED;
6283 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6286 memset(mbox, 0, sizeof(LPFC_MBOXQ_t));
6288 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6289 LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT,
6291 if (alloc_len < req_len) {
6292 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6293 "2983 Allocated DMA memory size (x%x) is "
6294 "less than the requested DMA memory "
6295 "size (x%x)\n", alloc_len, req_len);
6299 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, curr_blks, type, emb);
6305 if (!phba->sli4_hba.intr_enable)
6306 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
6308 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
6309 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
6318 * Figure out where the response is located. Then get local pointers
6319 * to the response data. The port does not guarantee to respond to
6320 * all extents counts request so update the local variable with the
6321 * allocated count from the port.
6323 if (emb == LPFC_SLI4_MBX_EMBED) {
6324 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
6325 shdr = &rsrc_ext->header.cfg_shdr;
6326 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
6328 virtaddr = mbox->sge_array->addr[0];
6329 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
6330 shdr = &n_rsrc->cfg_shdr;
6331 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
6334 if (bf_get(lpfc_mbox_hdr_status, &shdr->response)) {
6335 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
6336 "2984 Failed to read allocated resources "
6337 "for type %d - Status 0x%x Add'l Status 0x%x.\n",
6339 bf_get(lpfc_mbox_hdr_status, &shdr->response),
6340 bf_get(lpfc_mbox_hdr_add_status, &shdr->response));
6345 lpfc_sli4_mbox_cmd_free(phba, mbox);
6350 * lpfc_sli4_repost_sgl_list - Repost the buffers sgl pages as block
6351 * @phba: pointer to lpfc hba data structure.
6352 * @pring: Pointer to driver SLI ring object.
6353 * @sgl_list: linked link of sgl buffers to post
6354 * @cnt: number of linked list buffers
6356 * This routine walks the list of buffers that have been allocated and
6357 * repost them to the port by using SGL block post. This is needed after a
6358 * pci_function_reset/warm_start or start. It attempts to construct blocks
6359 * of buffer sgls which contains contiguous xris and uses the non-embedded
6360 * SGL block post mailbox commands to post them to the port. For single
6361 * buffer sgl with non-contiguous xri, if any, it shall use embedded SGL post
6362 * mailbox command for posting.
6364 * Returns: 0 = success, non-zero failure.
6367 lpfc_sli4_repost_sgl_list(struct lpfc_hba *phba,
6368 struct list_head *sgl_list, int cnt)
6370 struct lpfc_sglq *sglq_entry = NULL;
6371 struct lpfc_sglq *sglq_entry_next = NULL;
6372 struct lpfc_sglq *sglq_entry_first = NULL;
6373 int status, total_cnt;
6374 int post_cnt = 0, num_posted = 0, block_cnt = 0;
6375 int last_xritag = NO_XRI;
6376 LIST_HEAD(prep_sgl_list);
6377 LIST_HEAD(blck_sgl_list);
6378 LIST_HEAD(allc_sgl_list);
6379 LIST_HEAD(post_sgl_list);
6380 LIST_HEAD(free_sgl_list);
6382 spin_lock_irq(&phba->hbalock);
6383 spin_lock(&phba->sli4_hba.sgl_list_lock);
6384 list_splice_init(sgl_list, &allc_sgl_list);
6385 spin_unlock(&phba->sli4_hba.sgl_list_lock);
6386 spin_unlock_irq(&phba->hbalock);
6389 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
6390 &allc_sgl_list, list) {
6391 list_del_init(&sglq_entry->list);
6393 if ((last_xritag != NO_XRI) &&
6394 (sglq_entry->sli4_xritag != last_xritag + 1)) {
6395 /* a hole in xri block, form a sgl posting block */
6396 list_splice_init(&prep_sgl_list, &blck_sgl_list);
6397 post_cnt = block_cnt - 1;
6398 /* prepare list for next posting block */
6399 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6402 /* prepare list for next posting block */
6403 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6404 /* enough sgls for non-embed sgl mbox command */
6405 if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
6406 list_splice_init(&prep_sgl_list,
6408 post_cnt = block_cnt;
6414 /* keep track of last sgl's xritag */
6415 last_xritag = sglq_entry->sli4_xritag;
6417 /* end of repost sgl list condition for buffers */
6418 if (num_posted == total_cnt) {
6419 if (post_cnt == 0) {
6420 list_splice_init(&prep_sgl_list,
6422 post_cnt = block_cnt;
6423 } else if (block_cnt == 1) {
6424 status = lpfc_sli4_post_sgl(phba,
6425 sglq_entry->phys, 0,
6426 sglq_entry->sli4_xritag);
6428 /* successful, put sgl to posted list */
6429 list_add_tail(&sglq_entry->list,
6432 /* Failure, put sgl to free list */
6433 lpfc_printf_log(phba, KERN_WARNING,
6435 "3159 Failed to post "
6436 "sgl, xritag:x%x\n",
6437 sglq_entry->sli4_xritag);
6438 list_add_tail(&sglq_entry->list,
6445 /* continue until a nembed page worth of sgls */
6449 /* post the buffer list sgls as a block */
6450 status = lpfc_sli4_post_sgl_list(phba, &blck_sgl_list,
6454 /* success, put sgl list to posted sgl list */
6455 list_splice_init(&blck_sgl_list, &post_sgl_list);
6457 /* Failure, put sgl list to free sgl list */
6458 sglq_entry_first = list_first_entry(&blck_sgl_list,
6461 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6462 "3160 Failed to post sgl-list, "
6464 sglq_entry_first->sli4_xritag,
6465 (sglq_entry_first->sli4_xritag +
6467 list_splice_init(&blck_sgl_list, &free_sgl_list);
6468 total_cnt -= post_cnt;
6471 /* don't reset xirtag due to hole in xri block */
6473 last_xritag = NO_XRI;
6475 /* reset sgl post count for next round of posting */
6479 /* free the sgls failed to post */
6480 lpfc_free_sgl_list(phba, &free_sgl_list);
6482 /* push sgls posted to the available list */
6483 if (!list_empty(&post_sgl_list)) {
6484 spin_lock_irq(&phba->hbalock);
6485 spin_lock(&phba->sli4_hba.sgl_list_lock);
6486 list_splice_init(&post_sgl_list, sgl_list);
6487 spin_unlock(&phba->sli4_hba.sgl_list_lock);
6488 spin_unlock_irq(&phba->hbalock);
6490 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6491 "3161 Failure to post sgl to port.\n");
6495 /* return the number of XRIs actually posted */
6500 lpfc_set_host_data(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
6504 len = sizeof(struct lpfc_mbx_set_host_data) -
6505 sizeof(struct lpfc_sli4_cfg_mhdr);
6506 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6507 LPFC_MBOX_OPCODE_SET_HOST_DATA, len,
6508 LPFC_SLI4_MBX_EMBED);
6510 mbox->u.mqe.un.set_host_data.param_id = LPFC_SET_HOST_OS_DRIVER_VERSION;
6511 mbox->u.mqe.un.set_host_data.param_len =
6512 LPFC_HOST_OS_DRIVER_VERSION_SIZE;
6513 snprintf(mbox->u.mqe.un.set_host_data.data,
6514 LPFC_HOST_OS_DRIVER_VERSION_SIZE,
6515 "Linux %s v"LPFC_DRIVER_VERSION,
6516 (phba->hba_flag & HBA_FCOE_MODE) ? "FCoE" : "FC");
6520 lpfc_post_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *hrq,
6521 struct lpfc_queue *drq, int count, int idx)
6524 struct lpfc_rqe hrqe;
6525 struct lpfc_rqe drqe;
6526 struct lpfc_rqb *rqbp;
6527 struct rqb_dmabuf *rqb_buffer;
6528 LIST_HEAD(rqb_buf_list);
6531 for (i = 0; i < count; i++) {
6532 /* IF RQ is already full, don't bother */
6533 if (rqbp->buffer_count + i >= rqbp->entry_count - 1)
6535 rqb_buffer = rqbp->rqb_alloc_buffer(phba);
6538 rqb_buffer->hrq = hrq;
6539 rqb_buffer->drq = drq;
6540 rqb_buffer->idx = idx;
6541 list_add_tail(&rqb_buffer->hbuf.list, &rqb_buf_list);
6543 while (!list_empty(&rqb_buf_list)) {
6544 list_remove_head(&rqb_buf_list, rqb_buffer, struct rqb_dmabuf,
6547 hrqe.address_lo = putPaddrLow(rqb_buffer->hbuf.phys);
6548 hrqe.address_hi = putPaddrHigh(rqb_buffer->hbuf.phys);
6549 drqe.address_lo = putPaddrLow(rqb_buffer->dbuf.phys);
6550 drqe.address_hi = putPaddrHigh(rqb_buffer->dbuf.phys);
6551 rc = lpfc_sli4_rq_put(hrq, drq, &hrqe, &drqe);
6553 rqbp->rqb_free_buffer(phba, rqb_buffer);
6555 list_add_tail(&rqb_buffer->hbuf.list,
6556 &rqbp->rqb_buffer_list);
6557 rqbp->buffer_count++;
6564 * lpfc_sli4_hba_setup - SLI4 device initialization PCI function
6565 * @phba: Pointer to HBA context object.
6567 * This function is the main SLI4 device initialization PCI function. This
6568 * function is called by the HBA initialization code, HBA reset code and
6569 * HBA error attention handler code. Caller is not required to hold any
6573 lpfc_sli4_hba_setup(struct lpfc_hba *phba)
6576 LPFC_MBOXQ_t *mboxq;
6577 struct lpfc_mqe *mqe;
6580 uint32_t ftr_rsp = 0;
6581 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
6582 struct lpfc_vport *vport = phba->pport;
6583 struct lpfc_dmabuf *mp;
6584 struct lpfc_rqb *rqbp;
6586 /* Perform a PCI function reset to start from clean */
6587 rc = lpfc_pci_function_reset(phba);
6591 /* Check the HBA Host Status Register for readyness */
6592 rc = lpfc_sli4_post_status_check(phba);
6596 spin_lock_irq(&phba->hbalock);
6597 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
6598 spin_unlock_irq(&phba->hbalock);
6602 * Allocate a single mailbox container for initializing the
6605 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6609 /* Issue READ_REV to collect vpd and FW information. */
6610 vpd_size = SLI4_PAGE_SIZE;
6611 vpd = kzalloc(vpd_size, GFP_KERNEL);
6617 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
6623 mqe = &mboxq->u.mqe;
6624 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
6625 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev)) {
6626 phba->hba_flag |= HBA_FCOE_MODE;
6627 phba->fcp_embed_io = 0; /* SLI4 FC support only */
6629 phba->hba_flag &= ~HBA_FCOE_MODE;
6632 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
6634 phba->hba_flag |= HBA_FIP_SUPPORT;
6636 phba->hba_flag &= ~HBA_FIP_SUPPORT;
6638 phba->hba_flag &= ~HBA_FCP_IOQ_FLUSH;
6640 if (phba->sli_rev != LPFC_SLI_REV4) {
6641 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6642 "0376 READ_REV Error. SLI Level %d "
6643 "FCoE enabled %d\n",
6644 phba->sli_rev, phba->hba_flag & HBA_FCOE_MODE);
6651 * Continue initialization with default values even if driver failed
6652 * to read FCoE param config regions, only read parameters if the
6655 if (phba->hba_flag & HBA_FCOE_MODE &&
6656 lpfc_sli4_read_fcoe_params(phba))
6657 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_INIT,
6658 "2570 Failed to read FCoE parameters\n");
6661 * Retrieve sli4 device physical port name, failure of doing it
6662 * is considered as non-fatal.
6664 rc = lpfc_sli4_retrieve_pport_name(phba);
6666 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6667 "3080 Successful retrieving SLI4 device "
6668 "physical port name: %s.\n", phba->Port);
6671 * Evaluate the read rev and vpd data. Populate the driver
6672 * state with the results. If this routine fails, the failure
6673 * is not fatal as the driver will use generic values.
6675 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
6676 if (unlikely(!rc)) {
6677 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6678 "0377 Error %d parsing vpd. "
6679 "Using defaults.\n", rc);
6684 /* Save information as VPD data */
6685 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
6686 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
6687 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
6688 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
6690 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
6692 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
6694 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
6696 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
6697 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
6698 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
6699 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
6700 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
6701 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
6702 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6703 "(%d):0380 READ_REV Status x%x "
6704 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
6705 mboxq->vport ? mboxq->vport->vpi : 0,
6706 bf_get(lpfc_mqe_status, mqe),
6707 phba->vpd.rev.opFwName,
6708 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
6709 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
6711 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */
6712 rc = (phba->sli4_hba.max_cfg_param.max_xri >> 3);
6713 if (phba->pport->cfg_lun_queue_depth > rc) {
6714 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6715 "3362 LUN queue depth changed from %d to %d\n",
6716 phba->pport->cfg_lun_queue_depth, rc);
6717 phba->pport->cfg_lun_queue_depth = rc;
6720 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
6721 LPFC_SLI_INTF_IF_TYPE_0) {
6722 lpfc_set_features(phba, mboxq, LPFC_SET_UE_RECOVERY);
6723 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6724 if (rc == MBX_SUCCESS) {
6725 phba->hba_flag |= HBA_RECOVERABLE_UE;
6726 /* Set 1Sec interval to detect UE */
6727 phba->eratt_poll_interval = 1;
6728 phba->sli4_hba.ue_to_sr = bf_get(
6729 lpfc_mbx_set_feature_UESR,
6730 &mboxq->u.mqe.un.set_feature);
6731 phba->sli4_hba.ue_to_rp = bf_get(
6732 lpfc_mbx_set_feature_UERP,
6733 &mboxq->u.mqe.un.set_feature);
6737 if (phba->cfg_enable_mds_diags && phba->mds_diags_support) {
6738 /* Enable MDS Diagnostics only if the SLI Port supports it */
6739 lpfc_set_features(phba, mboxq, LPFC_SET_MDS_DIAGS);
6740 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6741 if (rc != MBX_SUCCESS)
6742 phba->mds_diags_support = 0;
6746 * Discover the port's supported feature set and match it against the
6749 lpfc_request_features(phba, mboxq);
6750 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6757 * The port must support FCP initiator mode as this is the
6758 * only mode running in the host.
6760 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
6761 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6762 "0378 No support for fcpi mode.\n");
6765 if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh, &mqe->un.req_ftrs))
6766 phba->sli3_options |= LPFC_SLI4_PERFH_ENABLED;
6768 phba->sli3_options &= ~LPFC_SLI4_PERFH_ENABLED;
6770 * If the port cannot support the host's requested features
6771 * then turn off the global config parameters to disable the
6772 * feature in the driver. This is not a fatal error.
6774 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
6775 if (phba->cfg_enable_bg) {
6776 if (bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))
6777 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
6782 if (phba->max_vpi && phba->cfg_enable_npiv &&
6783 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6787 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6788 "0379 Feature Mismatch Data: x%08x %08x "
6789 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
6790 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
6791 phba->cfg_enable_npiv, phba->max_vpi);
6792 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
6793 phba->cfg_enable_bg = 0;
6794 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6795 phba->cfg_enable_npiv = 0;
6798 /* These SLI3 features are assumed in SLI4 */
6799 spin_lock_irq(&phba->hbalock);
6800 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
6801 spin_unlock_irq(&phba->hbalock);
6804 * Allocate all resources (xri,rpi,vpi,vfi) now. Subsequent
6805 * calls depends on these resources to complete port setup.
6807 rc = lpfc_sli4_alloc_resource_identifiers(phba);
6809 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6810 "2920 Failed to alloc Resource IDs "
6815 lpfc_set_host_data(phba, mboxq);
6817 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6819 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6820 "2134 Failed to set host os driver version %x",
6824 /* Read the port's service parameters. */
6825 rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
6827 phba->link_state = LPFC_HBA_ERROR;
6832 mboxq->vport = vport;
6833 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6834 mp = (struct lpfc_dmabuf *) mboxq->context1;
6835 if (rc == MBX_SUCCESS) {
6836 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
6841 * This memory was allocated by the lpfc_read_sparam routine. Release
6842 * it to the mbuf pool.
6844 lpfc_mbuf_free(phba, mp->virt, mp->phys);
6846 mboxq->context1 = NULL;
6848 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6849 "0382 READ_SPARAM command failed "
6850 "status %d, mbxStatus x%x\n",
6851 rc, bf_get(lpfc_mqe_status, mqe));
6852 phba->link_state = LPFC_HBA_ERROR;
6857 lpfc_update_vport_wwn(vport);
6859 /* Update the fc_host data structures with new wwn. */
6860 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
6861 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
6863 /* Create all the SLI4 queues */
6864 rc = lpfc_sli4_queue_create(phba);
6866 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6867 "3089 Failed to allocate queues\n");
6871 /* Set up all the queues to the device */
6872 rc = lpfc_sli4_queue_setup(phba);
6874 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6875 "0381 Error %d during queue setup.\n ", rc);
6876 goto out_stop_timers;
6878 /* Initialize the driver internal SLI layer lists. */
6879 lpfc_sli4_setup(phba);
6880 lpfc_sli4_queue_init(phba);
6882 /* update host els xri-sgl sizes and mappings */
6883 rc = lpfc_sli4_els_sgl_update(phba);
6885 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6886 "1400 Failed to update xri-sgl size and "
6887 "mapping: %d\n", rc);
6888 goto out_destroy_queue;
6891 /* register the els sgl pool to the port */
6892 rc = lpfc_sli4_repost_sgl_list(phba, &phba->sli4_hba.lpfc_els_sgl_list,
6893 phba->sli4_hba.els_xri_cnt);
6894 if (unlikely(rc < 0)) {
6895 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6896 "0582 Error %d during els sgl post "
6899 goto out_destroy_queue;
6901 phba->sli4_hba.els_xri_cnt = rc;
6903 if (phba->nvmet_support) {
6904 /* update host nvmet xri-sgl sizes and mappings */
6905 rc = lpfc_sli4_nvmet_sgl_update(phba);
6907 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6908 "6308 Failed to update nvmet-sgl size "
6909 "and mapping: %d\n", rc);
6910 goto out_destroy_queue;
6913 /* register the nvmet sgl pool to the port */
6914 rc = lpfc_sli4_repost_sgl_list(
6916 &phba->sli4_hba.lpfc_nvmet_sgl_list,
6917 phba->sli4_hba.nvmet_xri_cnt);
6918 if (unlikely(rc < 0)) {
6919 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6920 "3117 Error %d during nvmet "
6923 goto out_destroy_queue;
6925 phba->sli4_hba.nvmet_xri_cnt = rc;
6927 cnt = phba->cfg_iocb_cnt * 1024;
6928 /* We need 1 iocbq for every SGL, for IO processing */
6929 cnt += phba->sli4_hba.nvmet_xri_cnt;
6931 /* update host scsi xri-sgl sizes and mappings */
6932 rc = lpfc_sli4_scsi_sgl_update(phba);
6934 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6935 "6309 Failed to update scsi-sgl size "
6936 "and mapping: %d\n", rc);
6937 goto out_destroy_queue;
6940 /* update host nvme xri-sgl sizes and mappings */
6941 rc = lpfc_sli4_nvme_sgl_update(phba);
6943 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6944 "6082 Failed to update nvme-sgl size "
6945 "and mapping: %d\n", rc);
6946 goto out_destroy_queue;
6949 cnt = phba->cfg_iocb_cnt * 1024;
6952 if (!phba->sli.iocbq_lookup) {
6953 /* Initialize and populate the iocb list per host */
6954 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6955 "2821 initialize iocb list %d total %d\n",
6956 phba->cfg_iocb_cnt, cnt);
6957 rc = lpfc_init_iocb_list(phba, cnt);
6959 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6960 "1413 Failed to init iocb list.\n");
6961 goto out_destroy_queue;
6965 if (phba->nvmet_support)
6966 lpfc_nvmet_create_targetport(phba);
6968 if (phba->nvmet_support && phba->cfg_nvmet_mrq) {
6969 /* Post initial buffers to all RQs created */
6970 for (i = 0; i < phba->cfg_nvmet_mrq; i++) {
6971 rqbp = phba->sli4_hba.nvmet_mrq_hdr[i]->rqbp;
6972 INIT_LIST_HEAD(&rqbp->rqb_buffer_list);
6973 rqbp->rqb_alloc_buffer = lpfc_sli4_nvmet_alloc;
6974 rqbp->rqb_free_buffer = lpfc_sli4_nvmet_free;
6975 rqbp->entry_count = LPFC_NVMET_RQE_DEF_COUNT;
6976 rqbp->buffer_count = 0;
6978 lpfc_post_rq_buffer(
6979 phba, phba->sli4_hba.nvmet_mrq_hdr[i],
6980 phba->sli4_hba.nvmet_mrq_data[i],
6981 LPFC_NVMET_RQE_DEF_COUNT, i);
6985 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
6986 /* register the allocated scsi sgl pool to the port */
6987 rc = lpfc_sli4_repost_scsi_sgl_list(phba);
6989 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6990 "0383 Error %d during scsi sgl post "
6992 /* Some Scsi buffers were moved to abort scsi list */
6993 /* A pci function reset will repost them */
6995 goto out_destroy_queue;
6999 if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
7000 (phba->nvmet_support == 0)) {
7002 /* register the allocated nvme sgl pool to the port */
7003 rc = lpfc_repost_nvme_sgl_list(phba);
7005 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7006 "6116 Error %d during nvme sgl post "
7008 /* Some NVME buffers were moved to abort nvme list */
7009 /* A pci function reset will repost them */
7011 goto out_destroy_queue;
7015 /* Post the rpi header region to the device. */
7016 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
7018 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7019 "0393 Error %d during rpi post operation\n",
7022 goto out_destroy_queue;
7024 lpfc_sli4_node_prep(phba);
7026 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
7027 if ((phba->nvmet_support == 0) || (phba->cfg_nvmet_mrq == 1)) {
7029 * The FC Port needs to register FCFI (index 0)
7031 lpfc_reg_fcfi(phba, mboxq);
7032 mboxq->vport = phba->pport;
7033 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7034 if (rc != MBX_SUCCESS)
7035 goto out_unset_queue;
7037 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi,
7038 &mboxq->u.mqe.un.reg_fcfi);
7040 /* We are a NVME Target mode with MRQ > 1 */
7042 /* First register the FCFI */
7043 lpfc_reg_fcfi_mrq(phba, mboxq, 0);
7044 mboxq->vport = phba->pport;
7045 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7046 if (rc != MBX_SUCCESS)
7047 goto out_unset_queue;
7049 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_mrq_fcfi,
7050 &mboxq->u.mqe.un.reg_fcfi_mrq);
7052 /* Next register the MRQs */
7053 lpfc_reg_fcfi_mrq(phba, mboxq, 1);
7054 mboxq->vport = phba->pport;
7055 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7056 if (rc != MBX_SUCCESS)
7057 goto out_unset_queue;
7060 /* Check if the port is configured to be disabled */
7061 lpfc_sli_read_link_ste(phba);
7064 /* Arm the CQs and then EQs on device */
7065 lpfc_sli4_arm_cqeq_intr(phba);
7067 /* Indicate device interrupt mode */
7068 phba->sli4_hba.intr_enable = 1;
7070 /* Allow asynchronous mailbox command to go through */
7071 spin_lock_irq(&phba->hbalock);
7072 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7073 spin_unlock_irq(&phba->hbalock);
7075 /* Post receive buffers to the device */
7076 lpfc_sli4_rb_setup(phba);
7078 /* Reset HBA FCF states after HBA reset */
7079 phba->fcf.fcf_flag = 0;
7080 phba->fcf.current_rec.flag = 0;
7082 /* Start the ELS watchdog timer */
7083 mod_timer(&vport->els_tmofunc,
7084 jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov * 2)));
7086 /* Start heart beat timer */
7087 mod_timer(&phba->hb_tmofunc,
7088 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
7089 phba->hb_outstanding = 0;
7090 phba->last_completion_time = jiffies;
7092 /* Start error attention (ERATT) polling timer */
7093 mod_timer(&phba->eratt_poll,
7094 jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
7096 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
7097 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
7098 rc = pci_enable_pcie_error_reporting(phba->pcidev);
7100 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7101 "2829 This device supports "
7102 "Advanced Error Reporting (AER)\n");
7103 spin_lock_irq(&phba->hbalock);
7104 phba->hba_flag |= HBA_AER_ENABLED;
7105 spin_unlock_irq(&phba->hbalock);
7107 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7108 "2830 This device does not support "
7109 "Advanced Error Reporting (AER)\n");
7110 phba->cfg_aer_support = 0;
7116 * The port is ready, set the host's link state to LINK_DOWN
7117 * in preparation for link interrupts.
7119 spin_lock_irq(&phba->hbalock);
7120 phba->link_state = LPFC_LINK_DOWN;
7121 spin_unlock_irq(&phba->hbalock);
7122 if (!(phba->hba_flag & HBA_FCOE_MODE) &&
7123 (phba->hba_flag & LINK_DISABLED)) {
7124 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
7125 "3103 Adapter Link is disabled.\n");
7126 lpfc_down_link(phba, mboxq);
7127 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7128 if (rc != MBX_SUCCESS) {
7129 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
7130 "3104 Adapter failed to issue "
7131 "DOWN_LINK mbox cmd, rc:x%x\n", rc);
7132 goto out_unset_queue;
7134 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
7135 /* don't perform init_link on SLI4 FC port loopback test */
7136 if (!(phba->link_flag & LS_LOOPBACK_MODE)) {
7137 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
7139 goto out_unset_queue;
7142 mempool_free(mboxq, phba->mbox_mem_pool);
7145 /* Unset all the queues set up in this routine when error out */
7146 lpfc_sli4_queue_unset(phba);
7148 lpfc_free_iocb_list(phba);
7149 lpfc_sli4_queue_destroy(phba);
7151 lpfc_stop_hba_timers(phba);
7153 mempool_free(mboxq, phba->mbox_mem_pool);
7158 * lpfc_mbox_timeout - Timeout call back function for mbox timer
7159 * @ptr: context object - pointer to hba structure.
7161 * This is the callback function for mailbox timer. The mailbox
7162 * timer is armed when a new mailbox command is issued and the timer
7163 * is deleted when the mailbox complete. The function is called by
7164 * the kernel timer code when a mailbox does not complete within
7165 * expected time. This function wakes up the worker thread to
7166 * process the mailbox timeout and returns. All the processing is
7167 * done by the worker thread function lpfc_mbox_timeout_handler.
7170 lpfc_mbox_timeout(unsigned long ptr)
7172 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
7173 unsigned long iflag;
7174 uint32_t tmo_posted;
7176 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
7177 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
7179 phba->pport->work_port_events |= WORKER_MBOX_TMO;
7180 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
7183 lpfc_worker_wake_up(phba);
7188 * lpfc_sli4_mbox_completions_pending - check to see if any mailbox completions
7190 * @phba: Pointer to HBA context object.
7192 * This function checks if any mailbox completions are present on the mailbox
7196 lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba)
7200 struct lpfc_queue *mcq;
7201 struct lpfc_mcqe *mcqe;
7202 bool pending_completions = false;
7204 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
7207 /* Check for completions on mailbox completion queue */
7209 mcq = phba->sli4_hba.mbx_cq;
7210 idx = mcq->hba_index;
7211 while (bf_get_le32(lpfc_cqe_valid, mcq->qe[idx].cqe)) {
7212 mcqe = (struct lpfc_mcqe *)mcq->qe[idx].cqe;
7213 if (bf_get_le32(lpfc_trailer_completed, mcqe) &&
7214 (!bf_get_le32(lpfc_trailer_async, mcqe))) {
7215 pending_completions = true;
7218 idx = (idx + 1) % mcq->entry_count;
7219 if (mcq->hba_index == idx)
7222 return pending_completions;
7227 * lpfc_sli4_process_missed_mbox_completions - process mbox completions
7229 * @phba: Pointer to HBA context object.
7231 * For sli4, it is possible to miss an interrupt. As such mbox completions
7232 * maybe missed causing erroneous mailbox timeouts to occur. This function
7233 * checks to see if mbox completions are on the mailbox completion queue
7234 * and will process all the completions associated with the eq for the
7235 * mailbox completion queue.
7238 lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba)
7242 struct lpfc_queue *fpeq = NULL;
7243 struct lpfc_eqe *eqe;
7246 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
7249 /* Find the eq associated with the mcq */
7251 if (phba->sli4_hba.hba_eq)
7252 for (eqidx = 0; eqidx < phba->io_channel_irqs; eqidx++)
7253 if (phba->sli4_hba.hba_eq[eqidx]->queue_id ==
7254 phba->sli4_hba.mbx_cq->assoc_qid) {
7255 fpeq = phba->sli4_hba.hba_eq[eqidx];
7261 /* Turn off interrupts from this EQ */
7263 lpfc_sli4_eq_clr_intr(fpeq);
7265 /* Check to see if a mbox completion is pending */
7267 mbox_pending = lpfc_sli4_mbox_completions_pending(phba);
7270 * If a mbox completion is pending, process all the events on EQ
7271 * associated with the mbox completion queue (this could include
7272 * mailbox commands, async events, els commands, receive queue data
7277 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
7278 lpfc_sli4_hba_handle_eqe(phba, eqe, eqidx);
7279 fpeq->EQ_processed++;
7282 /* Always clear and re-arm the EQ */
7284 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
7286 return mbox_pending;
7291 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
7292 * @phba: Pointer to HBA context object.
7294 * This function is called from worker thread when a mailbox command times out.
7295 * The caller is not required to hold any locks. This function will reset the
7296 * HBA and recover all the pending commands.
7299 lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
7301 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
7302 MAILBOX_t *mb = NULL;
7304 struct lpfc_sli *psli = &phba->sli;
7306 /* If the mailbox completed, process the completion and return */
7307 if (lpfc_sli4_process_missed_mbox_completions(phba))
7312 /* Check the pmbox pointer first. There is a race condition
7313 * between the mbox timeout handler getting executed in the
7314 * worklist and the mailbox actually completing. When this
7315 * race condition occurs, the mbox_active will be NULL.
7317 spin_lock_irq(&phba->hbalock);
7318 if (pmbox == NULL) {
7319 lpfc_printf_log(phba, KERN_WARNING,
7321 "0353 Active Mailbox cleared - mailbox timeout "
7323 spin_unlock_irq(&phba->hbalock);
7327 /* Mbox cmd <mbxCommand> timeout */
7328 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7329 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
7331 phba->pport->port_state,
7333 phba->sli.mbox_active);
7334 spin_unlock_irq(&phba->hbalock);
7336 /* Setting state unknown so lpfc_sli_abort_iocb_ring
7337 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
7338 * it to fail all outstanding SCSI IO.
7340 spin_lock_irq(&phba->pport->work_port_lock);
7341 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
7342 spin_unlock_irq(&phba->pport->work_port_lock);
7343 spin_lock_irq(&phba->hbalock);
7344 phba->link_state = LPFC_LINK_UNKNOWN;
7345 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
7346 spin_unlock_irq(&phba->hbalock);
7348 lpfc_sli_abort_fcp_rings(phba);
7350 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7351 "0345 Resetting board due to mailbox timeout\n");
7353 /* Reset the HBA device */
7354 lpfc_reset_hba(phba);
7358 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
7359 * @phba: Pointer to HBA context object.
7360 * @pmbox: Pointer to mailbox object.
7361 * @flag: Flag indicating how the mailbox need to be processed.
7363 * This function is called by discovery code and HBA management code
7364 * to submit a mailbox command to firmware with SLI-3 interface spec. This
7365 * function gets the hbalock to protect the data structures.
7366 * The mailbox command can be submitted in polling mode, in which case
7367 * this function will wait in a polling loop for the completion of the
7369 * If the mailbox is submitted in no_wait mode (not polling) the
7370 * function will submit the command and returns immediately without waiting
7371 * for the mailbox completion. The no_wait is supported only when HBA
7372 * is in SLI2/SLI3 mode - interrupts are enabled.
7373 * The SLI interface allows only one mailbox pending at a time. If the
7374 * mailbox is issued in polling mode and there is already a mailbox
7375 * pending, then the function will return an error. If the mailbox is issued
7376 * in NO_WAIT mode and there is a mailbox pending already, the function
7377 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
7378 * The sli layer owns the mailbox object until the completion of mailbox
7379 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
7380 * return codes the caller owns the mailbox command after the return of
7384 lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
7388 struct lpfc_sli *psli = &phba->sli;
7389 uint32_t status, evtctr;
7390 uint32_t ha_copy, hc_copy;
7392 unsigned long timeout;
7393 unsigned long drvr_flag = 0;
7394 uint32_t word0, ldata;
7395 void __iomem *to_slim;
7396 int processing_queue = 0;
7398 spin_lock_irqsave(&phba->hbalock, drvr_flag);
7400 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7401 /* processing mbox queue from intr_handler */
7402 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7403 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7406 processing_queue = 1;
7407 pmbox = lpfc_mbox_get(phba);
7409 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7414 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
7415 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
7417 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7418 lpfc_printf_log(phba, KERN_ERR,
7419 LOG_MBOX | LOG_VPORT,
7420 "1806 Mbox x%x failed. No vport\n",
7421 pmbox->u.mb.mbxCommand);
7423 goto out_not_finished;
7427 /* If the PCI channel is in offline state, do not post mbox. */
7428 if (unlikely(pci_channel_offline(phba->pcidev))) {
7429 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7430 goto out_not_finished;
7433 /* If HBA has a deferred error attention, fail the iocb. */
7434 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
7435 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7436 goto out_not_finished;
7442 status = MBX_SUCCESS;
7444 if (phba->link_state == LPFC_HBA_ERROR) {
7445 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7447 /* Mbox command <mbxCommand> cannot issue */
7448 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7449 "(%d):0311 Mailbox command x%x cannot "
7450 "issue Data: x%x x%x\n",
7451 pmbox->vport ? pmbox->vport->vpi : 0,
7452 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
7453 goto out_not_finished;
7456 if (mbx->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT) {
7457 if (lpfc_readl(phba->HCregaddr, &hc_copy) ||
7458 !(hc_copy & HC_MBINT_ENA)) {
7459 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7460 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7461 "(%d):2528 Mailbox command x%x cannot "
7462 "issue Data: x%x x%x\n",
7463 pmbox->vport ? pmbox->vport->vpi : 0,
7464 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
7465 goto out_not_finished;
7469 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7470 /* Polling for a mbox command when another one is already active
7471 * is not allowed in SLI. Also, the driver must have established
7472 * SLI2 mode to queue and process multiple mbox commands.
7475 if (flag & MBX_POLL) {
7476 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7478 /* Mbox command <mbxCommand> cannot issue */
7479 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7480 "(%d):2529 Mailbox command x%x "
7481 "cannot issue Data: x%x x%x\n",
7482 pmbox->vport ? pmbox->vport->vpi : 0,
7483 pmbox->u.mb.mbxCommand,
7484 psli->sli_flag, flag);
7485 goto out_not_finished;
7488 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
7489 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7490 /* Mbox command <mbxCommand> cannot issue */
7491 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7492 "(%d):2530 Mailbox command x%x "
7493 "cannot issue Data: x%x x%x\n",
7494 pmbox->vport ? pmbox->vport->vpi : 0,
7495 pmbox->u.mb.mbxCommand,
7496 psli->sli_flag, flag);
7497 goto out_not_finished;
7500 /* Another mailbox command is still being processed, queue this
7501 * command to be processed later.
7503 lpfc_mbox_put(phba, pmbox);
7505 /* Mbox cmd issue - BUSY */
7506 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7507 "(%d):0308 Mbox cmd issue - BUSY Data: "
7508 "x%x x%x x%x x%x\n",
7509 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
7511 phba->pport ? phba->pport->port_state : 0xff,
7512 psli->sli_flag, flag);
7514 psli->slistat.mbox_busy++;
7515 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7518 lpfc_debugfs_disc_trc(pmbox->vport,
7519 LPFC_DISC_TRC_MBOX_VPORT,
7520 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
7521 (uint32_t)mbx->mbxCommand,
7522 mbx->un.varWords[0], mbx->un.varWords[1]);
7525 lpfc_debugfs_disc_trc(phba->pport,
7527 "MBOX Bsy: cmd:x%x mb:x%x x%x",
7528 (uint32_t)mbx->mbxCommand,
7529 mbx->un.varWords[0], mbx->un.varWords[1]);
7535 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7537 /* If we are not polling, we MUST be in SLI2 mode */
7538 if (flag != MBX_POLL) {
7539 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
7540 (mbx->mbxCommand != MBX_KILL_BOARD)) {
7541 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7542 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7543 /* Mbox command <mbxCommand> cannot issue */
7544 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7545 "(%d):2531 Mailbox command x%x "
7546 "cannot issue Data: x%x x%x\n",
7547 pmbox->vport ? pmbox->vport->vpi : 0,
7548 pmbox->u.mb.mbxCommand,
7549 psli->sli_flag, flag);
7550 goto out_not_finished;
7552 /* timeout active mbox command */
7553 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
7555 mod_timer(&psli->mbox_tmo, jiffies + timeout);
7558 /* Mailbox cmd <cmd> issue */
7559 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7560 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
7562 pmbox->vport ? pmbox->vport->vpi : 0,
7564 phba->pport ? phba->pport->port_state : 0xff,
7565 psli->sli_flag, flag);
7567 if (mbx->mbxCommand != MBX_HEARTBEAT) {
7569 lpfc_debugfs_disc_trc(pmbox->vport,
7570 LPFC_DISC_TRC_MBOX_VPORT,
7571 "MBOX Send vport: cmd:x%x mb:x%x x%x",
7572 (uint32_t)mbx->mbxCommand,
7573 mbx->un.varWords[0], mbx->un.varWords[1]);
7576 lpfc_debugfs_disc_trc(phba->pport,
7578 "MBOX Send: cmd:x%x mb:x%x x%x",
7579 (uint32_t)mbx->mbxCommand,
7580 mbx->un.varWords[0], mbx->un.varWords[1]);
7584 psli->slistat.mbox_cmd++;
7585 evtctr = psli->slistat.mbox_event;
7587 /* next set own bit for the adapter and copy over command word */
7588 mbx->mbxOwner = OWN_CHIP;
7590 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7591 /* Populate mbox extension offset word. */
7592 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) {
7593 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
7594 = (uint8_t *)phba->mbox_ext
7595 - (uint8_t *)phba->mbox;
7598 /* Copy the mailbox extension data */
7599 if (pmbox->in_ext_byte_len && pmbox->context2) {
7600 lpfc_sli_pcimem_bcopy(pmbox->context2,
7601 (uint8_t *)phba->mbox_ext,
7602 pmbox->in_ext_byte_len);
7604 /* Copy command data to host SLIM area */
7605 lpfc_sli_pcimem_bcopy(mbx, phba->mbox, MAILBOX_CMD_SIZE);
7607 /* Populate mbox extension offset word. */
7608 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len)
7609 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
7610 = MAILBOX_HBA_EXT_OFFSET;
7612 /* Copy the mailbox extension data */
7613 if (pmbox->in_ext_byte_len && pmbox->context2)
7614 lpfc_memcpy_to_slim(phba->MBslimaddr +
7615 MAILBOX_HBA_EXT_OFFSET,
7616 pmbox->context2, pmbox->in_ext_byte_len);
7618 if (mbx->mbxCommand == MBX_CONFIG_PORT)
7619 /* copy command data into host mbox for cmpl */
7620 lpfc_sli_pcimem_bcopy(mbx, phba->mbox,
7623 /* First copy mbox command data to HBA SLIM, skip past first
7625 to_slim = phba->MBslimaddr + sizeof (uint32_t);
7626 lpfc_memcpy_to_slim(to_slim, &mbx->un.varWords[0],
7627 MAILBOX_CMD_SIZE - sizeof (uint32_t));
7629 /* Next copy over first word, with mbxOwner set */
7630 ldata = *((uint32_t *)mbx);
7631 to_slim = phba->MBslimaddr;
7632 writel(ldata, to_slim);
7633 readl(to_slim); /* flush */
7635 if (mbx->mbxCommand == MBX_CONFIG_PORT)
7636 /* switch over to host mailbox */
7637 psli->sli_flag |= LPFC_SLI_ACTIVE;
7644 /* Set up reference to mailbox command */
7645 psli->mbox_active = pmbox;
7646 /* Interrupt board to do it */
7647 writel(CA_MBATT, phba->CAregaddr);
7648 readl(phba->CAregaddr); /* flush */
7649 /* Don't wait for it to finish, just return */
7653 /* Set up null reference to mailbox command */
7654 psli->mbox_active = NULL;
7655 /* Interrupt board to do it */
7656 writel(CA_MBATT, phba->CAregaddr);
7657 readl(phba->CAregaddr); /* flush */
7659 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7660 /* First read mbox status word */
7661 word0 = *((uint32_t *)phba->mbox);
7662 word0 = le32_to_cpu(word0);
7664 /* First read mbox status word */
7665 if (lpfc_readl(phba->MBslimaddr, &word0)) {
7666 spin_unlock_irqrestore(&phba->hbalock,
7668 goto out_not_finished;
7672 /* Read the HBA Host Attention Register */
7673 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
7674 spin_unlock_irqrestore(&phba->hbalock,
7676 goto out_not_finished;
7678 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
7681 /* Wait for command to complete */
7682 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
7683 (!(ha_copy & HA_MBATT) &&
7684 (phba->link_state > LPFC_WARM_START))) {
7685 if (time_after(jiffies, timeout)) {
7686 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7687 spin_unlock_irqrestore(&phba->hbalock,
7689 goto out_not_finished;
7692 /* Check if we took a mbox interrupt while we were
7694 if (((word0 & OWN_CHIP) != OWN_CHIP)
7695 && (evtctr != psli->slistat.mbox_event))
7699 spin_unlock_irqrestore(&phba->hbalock,
7702 spin_lock_irqsave(&phba->hbalock, drvr_flag);
7705 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7706 /* First copy command data */
7707 word0 = *((uint32_t *)phba->mbox);
7708 word0 = le32_to_cpu(word0);
7709 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
7712 /* Check real SLIM for any errors */
7713 slimword0 = readl(phba->MBslimaddr);
7714 slimmb = (MAILBOX_t *) & slimword0;
7715 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
7716 && slimmb->mbxStatus) {
7723 /* First copy command data */
7724 word0 = readl(phba->MBslimaddr);
7726 /* Read the HBA Host Attention Register */
7727 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
7728 spin_unlock_irqrestore(&phba->hbalock,
7730 goto out_not_finished;
7734 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7735 /* copy results back to user */
7736 lpfc_sli_pcimem_bcopy(phba->mbox, mbx,
7738 /* Copy the mailbox extension data */
7739 if (pmbox->out_ext_byte_len && pmbox->context2) {
7740 lpfc_sli_pcimem_bcopy(phba->mbox_ext,
7742 pmbox->out_ext_byte_len);
7745 /* First copy command data */
7746 lpfc_memcpy_from_slim(mbx, phba->MBslimaddr,
7748 /* Copy the mailbox extension data */
7749 if (pmbox->out_ext_byte_len && pmbox->context2) {
7750 lpfc_memcpy_from_slim(pmbox->context2,
7752 MAILBOX_HBA_EXT_OFFSET,
7753 pmbox->out_ext_byte_len);
7757 writel(HA_MBATT, phba->HAregaddr);
7758 readl(phba->HAregaddr); /* flush */
7760 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7761 status = mbx->mbxStatus;
7764 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7768 if (processing_queue) {
7769 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
7770 lpfc_mbox_cmpl_put(phba, pmbox);
7772 return MBX_NOT_FINISHED;
7776 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
7777 * @phba: Pointer to HBA context object.
7779 * The function blocks the posting of SLI4 asynchronous mailbox commands from
7780 * the driver internal pending mailbox queue. It will then try to wait out the
7781 * possible outstanding mailbox command before return.
7784 * 0 - the outstanding mailbox command completed; otherwise, the wait for
7785 * the outstanding mailbox command timed out.
7788 lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
7790 struct lpfc_sli *psli = &phba->sli;
7792 unsigned long timeout = 0;
7794 /* Mark the asynchronous mailbox command posting as blocked */
7795 spin_lock_irq(&phba->hbalock);
7796 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
7797 /* Determine how long we might wait for the active mailbox
7798 * command to be gracefully completed by firmware.
7800 if (phba->sli.mbox_active)
7801 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
7802 phba->sli.mbox_active) *
7804 spin_unlock_irq(&phba->hbalock);
7806 /* Make sure the mailbox is really active */
7808 lpfc_sli4_process_missed_mbox_completions(phba);
7810 /* Wait for the outstnading mailbox command to complete */
7811 while (phba->sli.mbox_active) {
7812 /* Check active mailbox complete status every 2ms */
7814 if (time_after(jiffies, timeout)) {
7815 /* Timeout, marked the outstanding cmd not complete */
7821 /* Can not cleanly block async mailbox command, fails it */
7823 spin_lock_irq(&phba->hbalock);
7824 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7825 spin_unlock_irq(&phba->hbalock);
7831 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
7832 * @phba: Pointer to HBA context object.
7834 * The function unblocks and resume posting of SLI4 asynchronous mailbox
7835 * commands from the driver internal pending mailbox queue. It makes sure
7836 * that there is no outstanding mailbox command before resuming posting
7837 * asynchronous mailbox commands. If, for any reason, there is outstanding
7838 * mailbox command, it will try to wait it out before resuming asynchronous
7839 * mailbox command posting.
7842 lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
7844 struct lpfc_sli *psli = &phba->sli;
7846 spin_lock_irq(&phba->hbalock);
7847 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7848 /* Asynchronous mailbox posting is not blocked, do nothing */
7849 spin_unlock_irq(&phba->hbalock);
7853 /* Outstanding synchronous mailbox command is guaranteed to be done,
7854 * successful or timeout, after timing-out the outstanding mailbox
7855 * command shall always be removed, so just unblock posting async
7856 * mailbox command and resume
7858 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7859 spin_unlock_irq(&phba->hbalock);
7861 /* wake up worker thread to post asynchronlous mailbox command */
7862 lpfc_worker_wake_up(phba);
7866 * lpfc_sli4_wait_bmbx_ready - Wait for bootstrap mailbox register ready
7867 * @phba: Pointer to HBA context object.
7868 * @mboxq: Pointer to mailbox object.
7870 * The function waits for the bootstrap mailbox register ready bit from
7871 * port for twice the regular mailbox command timeout value.
7873 * 0 - no timeout on waiting for bootstrap mailbox register ready.
7874 * MBXERR_ERROR - wait for bootstrap mailbox register timed out.
7877 lpfc_sli4_wait_bmbx_ready(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7880 unsigned long timeout;
7881 struct lpfc_register bmbx_reg;
7883 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mboxq)
7887 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
7888 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
7892 if (time_after(jiffies, timeout))
7893 return MBXERR_ERROR;
7894 } while (!db_ready);
7900 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
7901 * @phba: Pointer to HBA context object.
7902 * @mboxq: Pointer to mailbox object.
7904 * The function posts a mailbox to the port. The mailbox is expected
7905 * to be comletely filled in and ready for the port to operate on it.
7906 * This routine executes a synchronous completion operation on the
7907 * mailbox by polling for its completion.
7909 * The caller must not be holding any locks when calling this routine.
7912 * MBX_SUCCESS - mailbox posted successfully
7913 * Any of the MBX error values.
7916 lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7918 int rc = MBX_SUCCESS;
7919 unsigned long iflag;
7920 uint32_t mcqe_status;
7922 struct lpfc_sli *psli = &phba->sli;
7923 struct lpfc_mqe *mb = &mboxq->u.mqe;
7924 struct lpfc_bmbx_create *mbox_rgn;
7925 struct dma_address *dma_address;
7928 * Only one mailbox can be active to the bootstrap mailbox region
7929 * at a time and there is no queueing provided.
7931 spin_lock_irqsave(&phba->hbalock, iflag);
7932 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7933 spin_unlock_irqrestore(&phba->hbalock, iflag);
7934 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7935 "(%d):2532 Mailbox command x%x (x%x/x%x) "
7936 "cannot issue Data: x%x x%x\n",
7937 mboxq->vport ? mboxq->vport->vpi : 0,
7938 mboxq->u.mb.mbxCommand,
7939 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7940 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7941 psli->sli_flag, MBX_POLL);
7942 return MBXERR_ERROR;
7944 /* The server grabs the token and owns it until release */
7945 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7946 phba->sli.mbox_active = mboxq;
7947 spin_unlock_irqrestore(&phba->hbalock, iflag);
7949 /* wait for bootstrap mbox register for readyness */
7950 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7955 * Initialize the bootstrap memory region to avoid stale data areas
7956 * in the mailbox post. Then copy the caller's mailbox contents to
7957 * the bmbx mailbox region.
7959 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
7960 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
7961 lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
7962 sizeof(struct lpfc_mqe));
7964 /* Post the high mailbox dma address to the port and wait for ready. */
7965 dma_address = &phba->sli4_hba.bmbx.dma_address;
7966 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
7968 /* wait for bootstrap mbox register for hi-address write done */
7969 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7973 /* Post the low mailbox dma address to the port. */
7974 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
7976 /* wait for bootstrap mbox register for low address write done */
7977 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7982 * Read the CQ to ensure the mailbox has completed.
7983 * If so, update the mailbox status so that the upper layers
7984 * can complete the request normally.
7986 lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
7987 sizeof(struct lpfc_mqe));
7988 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
7989 lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
7990 sizeof(struct lpfc_mcqe));
7991 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
7993 * When the CQE status indicates a failure and the mailbox status
7994 * indicates success then copy the CQE status into the mailbox status
7995 * (and prefix it with x4000).
7997 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
7998 if (bf_get(lpfc_mqe_status, mb) == MBX_SUCCESS)
7999 bf_set(lpfc_mqe_status, mb,
8000 (LPFC_MBX_ERROR_RANGE | mcqe_status));
8003 lpfc_sli4_swap_str(phba, mboxq);
8005 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8006 "(%d):0356 Mailbox cmd x%x (x%x/x%x) Status x%x "
8007 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
8008 " x%x x%x CQ: x%x x%x x%x x%x\n",
8009 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
8010 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8011 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8012 bf_get(lpfc_mqe_status, mb),
8013 mb->un.mb_words[0], mb->un.mb_words[1],
8014 mb->un.mb_words[2], mb->un.mb_words[3],
8015 mb->un.mb_words[4], mb->un.mb_words[5],
8016 mb->un.mb_words[6], mb->un.mb_words[7],
8017 mb->un.mb_words[8], mb->un.mb_words[9],
8018 mb->un.mb_words[10], mb->un.mb_words[11],
8019 mb->un.mb_words[12], mboxq->mcqe.word0,
8020 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
8021 mboxq->mcqe.trailer);
8023 /* We are holding the token, no needed for lock when release */
8024 spin_lock_irqsave(&phba->hbalock, iflag);
8025 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8026 phba->sli.mbox_active = NULL;
8027 spin_unlock_irqrestore(&phba->hbalock, iflag);
8032 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
8033 * @phba: Pointer to HBA context object.
8034 * @pmbox: Pointer to mailbox object.
8035 * @flag: Flag indicating how the mailbox need to be processed.
8037 * This function is called by discovery code and HBA management code to submit
8038 * a mailbox command to firmware with SLI-4 interface spec.
8040 * Return codes the caller owns the mailbox command after the return of the
8044 lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
8047 struct lpfc_sli *psli = &phba->sli;
8048 unsigned long iflags;
8051 /* dump from issue mailbox command if setup */
8052 lpfc_idiag_mbxacc_dump_issue_mbox(phba, &mboxq->u.mb);
8054 rc = lpfc_mbox_dev_check(phba);
8056 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8057 "(%d):2544 Mailbox command x%x (x%x/x%x) "
8058 "cannot issue Data: x%x x%x\n",
8059 mboxq->vport ? mboxq->vport->vpi : 0,
8060 mboxq->u.mb.mbxCommand,
8061 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8062 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8063 psli->sli_flag, flag);
8064 goto out_not_finished;
8067 /* Detect polling mode and jump to a handler */
8068 if (!phba->sli4_hba.intr_enable) {
8069 if (flag == MBX_POLL)
8070 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
8073 if (rc != MBX_SUCCESS)
8074 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
8075 "(%d):2541 Mailbox command x%x "
8076 "(x%x/x%x) failure: "
8077 "mqe_sta: x%x mcqe_sta: x%x/x%x "
8079 mboxq->vport ? mboxq->vport->vpi : 0,
8080 mboxq->u.mb.mbxCommand,
8081 lpfc_sli_config_mbox_subsys_get(phba,
8083 lpfc_sli_config_mbox_opcode_get(phba,
8085 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
8086 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
8087 bf_get(lpfc_mcqe_ext_status,
8089 psli->sli_flag, flag);
8091 } else if (flag == MBX_POLL) {
8092 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
8093 "(%d):2542 Try to issue mailbox command "
8094 "x%x (x%x/x%x) synchronously ahead of async"
8095 "mailbox command queue: x%x x%x\n",
8096 mboxq->vport ? mboxq->vport->vpi : 0,
8097 mboxq->u.mb.mbxCommand,
8098 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8099 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8100 psli->sli_flag, flag);
8101 /* Try to block the asynchronous mailbox posting */
8102 rc = lpfc_sli4_async_mbox_block(phba);
8104 /* Successfully blocked, now issue sync mbox cmd */
8105 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
8106 if (rc != MBX_SUCCESS)
8107 lpfc_printf_log(phba, KERN_WARNING,
8109 "(%d):2597 Sync Mailbox command "
8110 "x%x (x%x/x%x) failure: "
8111 "mqe_sta: x%x mcqe_sta: x%x/x%x "
8113 mboxq->vport ? mboxq->vport->vpi : 0,
8114 mboxq->u.mb.mbxCommand,
8115 lpfc_sli_config_mbox_subsys_get(phba,
8117 lpfc_sli_config_mbox_opcode_get(phba,
8119 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
8120 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
8121 bf_get(lpfc_mcqe_ext_status,
8123 psli->sli_flag, flag);
8124 /* Unblock the async mailbox posting afterward */
8125 lpfc_sli4_async_mbox_unblock(phba);
8130 /* Now, interrupt mode asynchrous mailbox command */
8131 rc = lpfc_mbox_cmd_check(phba, mboxq);
8133 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8134 "(%d):2543 Mailbox command x%x (x%x/x%x) "
8135 "cannot issue Data: x%x x%x\n",
8136 mboxq->vport ? mboxq->vport->vpi : 0,
8137 mboxq->u.mb.mbxCommand,
8138 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8139 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8140 psli->sli_flag, flag);
8141 goto out_not_finished;
8144 /* Put the mailbox command to the driver internal FIFO */
8145 psli->slistat.mbox_busy++;
8146 spin_lock_irqsave(&phba->hbalock, iflags);
8147 lpfc_mbox_put(phba, mboxq);
8148 spin_unlock_irqrestore(&phba->hbalock, iflags);
8149 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8150 "(%d):0354 Mbox cmd issue - Enqueue Data: "
8151 "x%x (x%x/x%x) x%x x%x x%x\n",
8152 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
8153 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
8154 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8155 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8156 phba->pport->port_state,
8157 psli->sli_flag, MBX_NOWAIT);
8158 /* Wake up worker thread to transport mailbox command from head */
8159 lpfc_worker_wake_up(phba);
8164 return MBX_NOT_FINISHED;
8168 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
8169 * @phba: Pointer to HBA context object.
8171 * This function is called by worker thread to send a mailbox command to
8172 * SLI4 HBA firmware.
8176 lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
8178 struct lpfc_sli *psli = &phba->sli;
8179 LPFC_MBOXQ_t *mboxq;
8180 int rc = MBX_SUCCESS;
8181 unsigned long iflags;
8182 struct lpfc_mqe *mqe;
8185 /* Check interrupt mode before post async mailbox command */
8186 if (unlikely(!phba->sli4_hba.intr_enable))
8187 return MBX_NOT_FINISHED;
8189 /* Check for mailbox command service token */
8190 spin_lock_irqsave(&phba->hbalock, iflags);
8191 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
8192 spin_unlock_irqrestore(&phba->hbalock, iflags);
8193 return MBX_NOT_FINISHED;
8195 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8196 spin_unlock_irqrestore(&phba->hbalock, iflags);
8197 return MBX_NOT_FINISHED;
8199 if (unlikely(phba->sli.mbox_active)) {
8200 spin_unlock_irqrestore(&phba->hbalock, iflags);
8201 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8202 "0384 There is pending active mailbox cmd\n");
8203 return MBX_NOT_FINISHED;
8205 /* Take the mailbox command service token */
8206 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
8208 /* Get the next mailbox command from head of queue */
8209 mboxq = lpfc_mbox_get(phba);
8211 /* If no more mailbox command waiting for post, we're done */
8213 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8214 spin_unlock_irqrestore(&phba->hbalock, iflags);
8217 phba->sli.mbox_active = mboxq;
8218 spin_unlock_irqrestore(&phba->hbalock, iflags);
8220 /* Check device readiness for posting mailbox command */
8221 rc = lpfc_mbox_dev_check(phba);
8223 /* Driver clean routine will clean up pending mailbox */
8224 goto out_not_finished;
8226 /* Prepare the mbox command to be posted */
8227 mqe = &mboxq->u.mqe;
8228 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
8230 /* Start timer for the mbox_tmo and log some mailbox post messages */
8231 mod_timer(&psli->mbox_tmo, (jiffies +
8232 msecs_to_jiffies(1000 * lpfc_mbox_tmo_val(phba, mboxq))));
8234 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8235 "(%d):0355 Mailbox cmd x%x (x%x/x%x) issue Data: "
8237 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
8238 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8239 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8240 phba->pport->port_state, psli->sli_flag);
8242 if (mbx_cmnd != MBX_HEARTBEAT) {
8244 lpfc_debugfs_disc_trc(mboxq->vport,
8245 LPFC_DISC_TRC_MBOX_VPORT,
8246 "MBOX Send vport: cmd:x%x mb:x%x x%x",
8247 mbx_cmnd, mqe->un.mb_words[0],
8248 mqe->un.mb_words[1]);
8250 lpfc_debugfs_disc_trc(phba->pport,
8252 "MBOX Send: cmd:x%x mb:x%x x%x",
8253 mbx_cmnd, mqe->un.mb_words[0],
8254 mqe->un.mb_words[1]);
8257 psli->slistat.mbox_cmd++;
8259 /* Post the mailbox command to the port */
8260 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
8261 if (rc != MBX_SUCCESS) {
8262 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8263 "(%d):2533 Mailbox command x%x (x%x/x%x) "
8264 "cannot issue Data: x%x x%x\n",
8265 mboxq->vport ? mboxq->vport->vpi : 0,
8266 mboxq->u.mb.mbxCommand,
8267 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8268 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8269 psli->sli_flag, MBX_NOWAIT);
8270 goto out_not_finished;
8276 spin_lock_irqsave(&phba->hbalock, iflags);
8277 if (phba->sli.mbox_active) {
8278 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
8279 __lpfc_mbox_cmpl_put(phba, mboxq);
8280 /* Release the token */
8281 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8282 phba->sli.mbox_active = NULL;
8284 spin_unlock_irqrestore(&phba->hbalock, iflags);
8286 return MBX_NOT_FINISHED;
8290 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
8291 * @phba: Pointer to HBA context object.
8292 * @pmbox: Pointer to mailbox object.
8293 * @flag: Flag indicating how the mailbox need to be processed.
8295 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
8296 * the API jump table function pointer from the lpfc_hba struct.
8298 * Return codes the caller owns the mailbox command after the return of the
8302 lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
8304 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
8308 * lpfc_mbox_api_table_setup - Set up mbox api function jump table
8309 * @phba: The hba struct for which this call is being executed.
8310 * @dev_grp: The HBA PCI-Device group number.
8312 * This routine sets up the mbox interface API function jump table in @phba
8314 * Returns: 0 - success, -ENODEV - failure.
8317 lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
8321 case LPFC_PCI_DEV_LP:
8322 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
8323 phba->lpfc_sli_handle_slow_ring_event =
8324 lpfc_sli_handle_slow_ring_event_s3;
8325 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
8326 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
8327 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
8329 case LPFC_PCI_DEV_OC:
8330 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
8331 phba->lpfc_sli_handle_slow_ring_event =
8332 lpfc_sli_handle_slow_ring_event_s4;
8333 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
8334 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
8335 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
8338 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8339 "1420 Invalid HBA PCI-device group: 0x%x\n",
8348 * __lpfc_sli_ringtx_put - Add an iocb to the txq
8349 * @phba: Pointer to HBA context object.
8350 * @pring: Pointer to driver SLI ring object.
8351 * @piocb: Pointer to address of newly added command iocb.
8353 * This function is called with hbalock held to add a command
8354 * iocb to the txq when SLI layer cannot submit the command iocb
8358 __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
8359 struct lpfc_iocbq *piocb)
8361 lockdep_assert_held(&phba->hbalock);
8362 /* Insert the caller's iocb in the txq tail for later processing. */
8363 list_add_tail(&piocb->list, &pring->txq);
8367 * lpfc_sli_next_iocb - Get the next iocb in the txq
8368 * @phba: Pointer to HBA context object.
8369 * @pring: Pointer to driver SLI ring object.
8370 * @piocb: Pointer to address of newly added command iocb.
8372 * This function is called with hbalock held before a new
8373 * iocb is submitted to the firmware. This function checks
8374 * txq to flush the iocbs in txq to Firmware before
8375 * submitting new iocbs to the Firmware.
8376 * If there are iocbs in the txq which need to be submitted
8377 * to firmware, lpfc_sli_next_iocb returns the first element
8378 * of the txq after dequeuing it from txq.
8379 * If there is no iocb in the txq then the function will return
8380 * *piocb and *piocb is set to NULL. Caller needs to check
8381 * *piocb to find if there are more commands in the txq.
8383 static struct lpfc_iocbq *
8384 lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
8385 struct lpfc_iocbq **piocb)
8387 struct lpfc_iocbq * nextiocb;
8389 lockdep_assert_held(&phba->hbalock);
8391 nextiocb = lpfc_sli_ringtx_get(phba, pring);
8401 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
8402 * @phba: Pointer to HBA context object.
8403 * @ring_number: SLI ring number to issue iocb on.
8404 * @piocb: Pointer to command iocb.
8405 * @flag: Flag indicating if this command can be put into txq.
8407 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
8408 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
8409 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
8410 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
8411 * this function allows only iocbs for posting buffers. This function finds
8412 * next available slot in the command ring and posts the command to the
8413 * available slot and writes the port attention register to request HBA start
8414 * processing new iocb. If there is no slot available in the ring and
8415 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
8416 * the function returns IOCB_BUSY.
8418 * This function is called with hbalock held. The function will return success
8419 * after it successfully submit the iocb to firmware or after adding to the
8423 __lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
8424 struct lpfc_iocbq *piocb, uint32_t flag)
8426 struct lpfc_iocbq *nextiocb;
8428 struct lpfc_sli_ring *pring = &phba->sli.sli3_ring[ring_number];
8430 lockdep_assert_held(&phba->hbalock);
8432 if (piocb->iocb_cmpl && (!piocb->vport) &&
8433 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
8434 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
8435 lpfc_printf_log(phba, KERN_ERR,
8436 LOG_SLI | LOG_VPORT,
8437 "1807 IOCB x%x failed. No vport\n",
8438 piocb->iocb.ulpCommand);
8444 /* If the PCI channel is in offline state, do not post iocbs. */
8445 if (unlikely(pci_channel_offline(phba->pcidev)))
8448 /* If HBA has a deferred error attention, fail the iocb. */
8449 if (unlikely(phba->hba_flag & DEFER_ERATT))
8453 * We should never get an IOCB if we are in a < LINK_DOWN state
8455 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
8459 * Check to see if we are blocking IOCB processing because of a
8460 * outstanding event.
8462 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
8465 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
8467 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
8468 * can be issued if the link is not up.
8470 switch (piocb->iocb.ulpCommand) {
8471 case CMD_GEN_REQUEST64_CR:
8472 case CMD_GEN_REQUEST64_CX:
8473 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
8474 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
8475 FC_RCTL_DD_UNSOL_CMD) ||
8476 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
8477 MENLO_TRANSPORT_TYPE))
8481 case CMD_QUE_RING_BUF_CN:
8482 case CMD_QUE_RING_BUF64_CN:
8484 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
8485 * completion, iocb_cmpl MUST be 0.
8487 if (piocb->iocb_cmpl)
8488 piocb->iocb_cmpl = NULL;
8490 case CMD_CREATE_XRI_CR:
8491 case CMD_CLOSE_XRI_CN:
8492 case CMD_CLOSE_XRI_CX:
8499 * For FCP commands, we must be in a state where we can process link
8502 } else if (unlikely(pring->ringno == LPFC_FCP_RING &&
8503 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
8507 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
8508 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
8509 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
8512 lpfc_sli_update_ring(phba, pring);
8514 lpfc_sli_update_full_ring(phba, pring);
8517 return IOCB_SUCCESS;
8522 pring->stats.iocb_cmd_delay++;
8526 if (!(flag & SLI_IOCB_RET_IOCB)) {
8527 __lpfc_sli_ringtx_put(phba, pring, piocb);
8528 return IOCB_SUCCESS;
8535 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
8536 * @phba: Pointer to HBA context object.
8537 * @piocb: Pointer to command iocb.
8538 * @sglq: Pointer to the scatter gather queue object.
8540 * This routine converts the bpl or bde that is in the IOCB
8541 * to a sgl list for the sli4 hardware. The physical address
8542 * of the bpl/bde is converted back to a virtual address.
8543 * If the IOCB contains a BPL then the list of BDE's is
8544 * converted to sli4_sge's. If the IOCB contains a single
8545 * BDE then it is converted to a single sli_sge.
8546 * The IOCB is still in cpu endianess so the contents of
8547 * the bpl can be used without byte swapping.
8549 * Returns valid XRI = Success, NO_XRI = Failure.
8552 lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
8553 struct lpfc_sglq *sglq)
8555 uint16_t xritag = NO_XRI;
8556 struct ulp_bde64 *bpl = NULL;
8557 struct ulp_bde64 bde;
8558 struct sli4_sge *sgl = NULL;
8559 struct lpfc_dmabuf *dmabuf;
8563 uint32_t offset = 0; /* accumulated offset in the sg request list */
8564 int inbound = 0; /* number of sg reply entries inbound from firmware */
8566 if (!piocbq || !sglq)
8569 sgl = (struct sli4_sge *)sglq->sgl;
8570 icmd = &piocbq->iocb;
8571 if (icmd->ulpCommand == CMD_XMIT_BLS_RSP64_CX)
8572 return sglq->sli4_xritag;
8573 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
8574 numBdes = icmd->un.genreq64.bdl.bdeSize /
8575 sizeof(struct ulp_bde64);
8576 /* The addrHigh and addrLow fields within the IOCB
8577 * have not been byteswapped yet so there is no
8578 * need to swap them back.
8580 if (piocbq->context3)
8581 dmabuf = (struct lpfc_dmabuf *)piocbq->context3;
8585 bpl = (struct ulp_bde64 *)dmabuf->virt;
8589 for (i = 0; i < numBdes; i++) {
8590 /* Should already be byte swapped. */
8591 sgl->addr_hi = bpl->addrHigh;
8592 sgl->addr_lo = bpl->addrLow;
8594 sgl->word2 = le32_to_cpu(sgl->word2);
8595 if ((i+1) == numBdes)
8596 bf_set(lpfc_sli4_sge_last, sgl, 1);
8598 bf_set(lpfc_sli4_sge_last, sgl, 0);
8599 /* swap the size field back to the cpu so we
8600 * can assign it to the sgl.
8602 bde.tus.w = le32_to_cpu(bpl->tus.w);
8603 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
8604 /* The offsets in the sgl need to be accumulated
8605 * separately for the request and reply lists.
8606 * The request is always first, the reply follows.
8608 if (piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) {
8609 /* add up the reply sg entries */
8610 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
8612 /* first inbound? reset the offset */
8615 bf_set(lpfc_sli4_sge_offset, sgl, offset);
8616 bf_set(lpfc_sli4_sge_type, sgl,
8617 LPFC_SGE_TYPE_DATA);
8618 offset += bde.tus.f.bdeSize;
8620 sgl->word2 = cpu_to_le32(sgl->word2);
8624 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
8625 /* The addrHigh and addrLow fields of the BDE have not
8626 * been byteswapped yet so they need to be swapped
8627 * before putting them in the sgl.
8630 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
8632 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
8633 sgl->word2 = le32_to_cpu(sgl->word2);
8634 bf_set(lpfc_sli4_sge_last, sgl, 1);
8635 sgl->word2 = cpu_to_le32(sgl->word2);
8637 cpu_to_le32(icmd->un.genreq64.bdl.bdeSize);
8639 return sglq->sli4_xritag;
8643 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
8644 * @phba: Pointer to HBA context object.
8645 * @piocb: Pointer to command iocb.
8646 * @wqe: Pointer to the work queue entry.
8648 * This routine converts the iocb command to its Work Queue Entry
8649 * equivalent. The wqe pointer should not have any fields set when
8650 * this routine is called because it will memcpy over them.
8651 * This routine does not set the CQ_ID or the WQEC bits in the
8654 * Returns: 0 = Success, IOCB_ERROR = Failure.
8657 lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
8658 union lpfc_wqe *wqe)
8660 uint32_t xmit_len = 0, total_len = 0;
8664 uint8_t command_type = ELS_COMMAND_NON_FIP;
8667 uint16_t abrt_iotag;
8668 struct lpfc_iocbq *abrtiocbq;
8669 struct ulp_bde64 *bpl = NULL;
8670 uint32_t els_id = LPFC_ELS_ID_DEFAULT;
8672 struct ulp_bde64 bde;
8673 struct lpfc_nodelist *ndlp;
8677 fip = phba->hba_flag & HBA_FIP_SUPPORT;
8678 /* The fcp commands will set command type */
8679 if (iocbq->iocb_flag & LPFC_IO_FCP)
8680 command_type = FCP_COMMAND;
8681 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
8682 command_type = ELS_COMMAND_FIP;
8684 command_type = ELS_COMMAND_NON_FIP;
8686 if (phba->fcp_embed_io)
8687 memset(wqe, 0, sizeof(union lpfc_wqe128));
8688 /* Some of the fields are in the right position already */
8689 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
8690 if (iocbq->iocb.ulpCommand != CMD_SEND_FRAME) {
8691 /* The ct field has moved so reset */
8692 wqe->generic.wqe_com.word7 = 0;
8693 wqe->generic.wqe_com.word10 = 0;
8696 abort_tag = (uint32_t) iocbq->iotag;
8697 xritag = iocbq->sli4_xritag;
8698 /* words0-2 bpl convert bde */
8699 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
8700 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
8701 sizeof(struct ulp_bde64);
8702 bpl = (struct ulp_bde64 *)
8703 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
8707 /* Should already be byte swapped. */
8708 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
8709 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
8710 /* swap the size field back to the cpu so we
8711 * can assign it to the sgl.
8713 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
8714 xmit_len = wqe->generic.bde.tus.f.bdeSize;
8716 for (i = 0; i < numBdes; i++) {
8717 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
8718 total_len += bde.tus.f.bdeSize;
8721 xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
8723 iocbq->iocb.ulpIoTag = iocbq->iotag;
8724 cmnd = iocbq->iocb.ulpCommand;
8726 switch (iocbq->iocb.ulpCommand) {
8727 case CMD_ELS_REQUEST64_CR:
8728 if (iocbq->iocb_flag & LPFC_IO_LIBDFC)
8729 ndlp = iocbq->context_un.ndlp;
8731 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8732 if (!iocbq->iocb.ulpLe) {
8733 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8734 "2007 Only Limited Edition cmd Format"
8735 " supported 0x%x\n",
8736 iocbq->iocb.ulpCommand);
8740 wqe->els_req.payload_len = xmit_len;
8741 /* Els_reguest64 has a TMO */
8742 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
8743 iocbq->iocb.ulpTimeout);
8744 /* Need a VF for word 4 set the vf bit*/
8745 bf_set(els_req64_vf, &wqe->els_req, 0);
8746 /* And a VFID for word 12 */
8747 bf_set(els_req64_vfid, &wqe->els_req, 0);
8748 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
8749 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8750 iocbq->iocb.ulpContext);
8751 bf_set(wqe_ct, &wqe->els_req.wqe_com, ct);
8752 bf_set(wqe_pu, &wqe->els_req.wqe_com, 0);
8753 /* CCP CCPE PV PRI in word10 were set in the memcpy */
8754 if (command_type == ELS_COMMAND_FIP)
8755 els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
8756 >> LPFC_FIP_ELS_ID_SHIFT);
8757 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
8758 iocbq->context2)->virt);
8759 if_type = bf_get(lpfc_sli_intf_if_type,
8760 &phba->sli4_hba.sli_intf);
8761 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8762 if (pcmd && (*pcmd == ELS_CMD_FLOGI ||
8763 *pcmd == ELS_CMD_SCR ||
8764 *pcmd == ELS_CMD_FDISC ||
8765 *pcmd == ELS_CMD_LOGO ||
8766 *pcmd == ELS_CMD_PLOGI)) {
8767 bf_set(els_req64_sp, &wqe->els_req, 1);
8768 bf_set(els_req64_sid, &wqe->els_req,
8769 iocbq->vport->fc_myDID);
8770 if ((*pcmd == ELS_CMD_FLOGI) &&
8771 !(phba->fc_topology ==
8772 LPFC_TOPOLOGY_LOOP))
8773 bf_set(els_req64_sid, &wqe->els_req, 0);
8774 bf_set(wqe_ct, &wqe->els_req.wqe_com, 1);
8775 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8776 phba->vpi_ids[iocbq->vport->vpi]);
8777 } else if (pcmd && iocbq->context1) {
8778 bf_set(wqe_ct, &wqe->els_req.wqe_com, 0);
8779 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8780 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8783 bf_set(wqe_temp_rpi, &wqe->els_req.wqe_com,
8784 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8785 bf_set(wqe_els_id, &wqe->els_req.wqe_com, els_id);
8786 bf_set(wqe_dbde, &wqe->els_req.wqe_com, 1);
8787 bf_set(wqe_iod, &wqe->els_req.wqe_com, LPFC_WQE_IOD_READ);
8788 bf_set(wqe_qosd, &wqe->els_req.wqe_com, 1);
8789 bf_set(wqe_lenloc, &wqe->els_req.wqe_com, LPFC_WQE_LENLOC_NONE);
8790 bf_set(wqe_ebde_cnt, &wqe->els_req.wqe_com, 0);
8791 wqe->els_req.max_response_payload_len = total_len - xmit_len;
8793 case CMD_XMIT_SEQUENCE64_CX:
8794 bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com,
8795 iocbq->iocb.un.ulpWord[3]);
8796 bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com,
8797 iocbq->iocb.unsli3.rcvsli3.ox_id);
8798 /* The entire sequence is transmitted for this IOCB */
8799 xmit_len = total_len;
8800 cmnd = CMD_XMIT_SEQUENCE64_CR;
8801 if (phba->link_flag & LS_LOOPBACK_MODE)
8802 bf_set(wqe_xo, &wqe->xmit_sequence.wge_ctl, 1);
8803 case CMD_XMIT_SEQUENCE64_CR:
8804 /* word3 iocb=io_tag32 wqe=reserved */
8805 wqe->xmit_sequence.rsvd3 = 0;
8806 /* word4 relative_offset memcpy */
8807 /* word5 r_ctl/df_ctl memcpy */
8808 bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0);
8809 bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1);
8810 bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com,
8811 LPFC_WQE_IOD_WRITE);
8812 bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com,
8813 LPFC_WQE_LENLOC_WORD12);
8814 bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0);
8815 wqe->xmit_sequence.xmit_len = xmit_len;
8816 command_type = OTHER_COMMAND;
8818 case CMD_XMIT_BCAST64_CN:
8819 /* word3 iocb=iotag32 wqe=seq_payload_len */
8820 wqe->xmit_bcast64.seq_payload_len = xmit_len;
8821 /* word4 iocb=rsvd wqe=rsvd */
8822 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
8823 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
8824 bf_set(wqe_ct, &wqe->xmit_bcast64.wqe_com,
8825 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8826 bf_set(wqe_dbde, &wqe->xmit_bcast64.wqe_com, 1);
8827 bf_set(wqe_iod, &wqe->xmit_bcast64.wqe_com, LPFC_WQE_IOD_WRITE);
8828 bf_set(wqe_lenloc, &wqe->xmit_bcast64.wqe_com,
8829 LPFC_WQE_LENLOC_WORD3);
8830 bf_set(wqe_ebde_cnt, &wqe->xmit_bcast64.wqe_com, 0);
8832 case CMD_FCP_IWRITE64_CR:
8833 command_type = FCP_COMMAND_DATA_OUT;
8834 /* word3 iocb=iotag wqe=payload_offset_len */
8835 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8836 bf_set(payload_offset_len, &wqe->fcp_iwrite,
8837 xmit_len + sizeof(struct fcp_rsp));
8838 bf_set(cmd_buff_len, &wqe->fcp_iwrite,
8840 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8841 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8842 bf_set(wqe_erp, &wqe->fcp_iwrite.wqe_com,
8843 iocbq->iocb.ulpFCP2Rcvy);
8844 bf_set(wqe_lnk, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpXS);
8845 /* Always open the exchange */
8846 bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE);
8847 bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com,
8848 LPFC_WQE_LENLOC_WORD4);
8849 bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpPU);
8850 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 1);
8851 if (iocbq->iocb_flag & LPFC_IO_OAS) {
8852 bf_set(wqe_oas, &wqe->fcp_iwrite.wqe_com, 1);
8853 bf_set(wqe_ccpe, &wqe->fcp_iwrite.wqe_com, 1);
8854 if (iocbq->priority) {
8855 bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
8856 (iocbq->priority << 1));
8858 bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
8859 (phba->cfg_XLanePriority << 1));
8862 /* Note, word 10 is already initialized to 0 */
8864 if (phba->fcp_embed_io) {
8865 struct lpfc_scsi_buf *lpfc_cmd;
8866 struct sli4_sge *sgl;
8867 union lpfc_wqe128 *wqe128;
8868 struct fcp_cmnd *fcp_cmnd;
8871 /* 128 byte wqe support here */
8872 wqe128 = (union lpfc_wqe128 *)wqe;
8874 lpfc_cmd = iocbq->context1;
8875 sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl;
8876 fcp_cmnd = lpfc_cmd->fcp_cmnd;
8878 /* Word 0-2 - FCP_CMND */
8879 wqe128->generic.bde.tus.f.bdeFlags =
8880 BUFF_TYPE_BDE_IMMED;
8881 wqe128->generic.bde.tus.f.bdeSize = sgl->sge_len;
8882 wqe128->generic.bde.addrHigh = 0;
8883 wqe128->generic.bde.addrLow = 88; /* Word 22 */
8885 bf_set(wqe_wqes, &wqe128->fcp_iwrite.wqe_com, 1);
8887 /* Word 22-29 FCP CMND Payload */
8888 ptr = &wqe128->words[22];
8889 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
8892 case CMD_FCP_IREAD64_CR:
8893 /* word3 iocb=iotag wqe=payload_offset_len */
8894 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8895 bf_set(payload_offset_len, &wqe->fcp_iread,
8896 xmit_len + sizeof(struct fcp_rsp));
8897 bf_set(cmd_buff_len, &wqe->fcp_iread,
8899 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8900 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8901 bf_set(wqe_erp, &wqe->fcp_iread.wqe_com,
8902 iocbq->iocb.ulpFCP2Rcvy);
8903 bf_set(wqe_lnk, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpXS);
8904 /* Always open the exchange */
8905 bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ);
8906 bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com,
8907 LPFC_WQE_LENLOC_WORD4);
8908 bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpPU);
8909 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 1);
8910 if (iocbq->iocb_flag & LPFC_IO_OAS) {
8911 bf_set(wqe_oas, &wqe->fcp_iread.wqe_com, 1);
8912 bf_set(wqe_ccpe, &wqe->fcp_iread.wqe_com, 1);
8913 if (iocbq->priority) {
8914 bf_set(wqe_ccp, &wqe->fcp_iread.wqe_com,
8915 (iocbq->priority << 1));
8917 bf_set(wqe_ccp, &wqe->fcp_iread.wqe_com,
8918 (phba->cfg_XLanePriority << 1));
8921 /* Note, word 10 is already initialized to 0 */
8923 if (phba->fcp_embed_io) {
8924 struct lpfc_scsi_buf *lpfc_cmd;
8925 struct sli4_sge *sgl;
8926 union lpfc_wqe128 *wqe128;
8927 struct fcp_cmnd *fcp_cmnd;
8930 /* 128 byte wqe support here */
8931 wqe128 = (union lpfc_wqe128 *)wqe;
8933 lpfc_cmd = iocbq->context1;
8934 sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl;
8935 fcp_cmnd = lpfc_cmd->fcp_cmnd;
8937 /* Word 0-2 - FCP_CMND */
8938 wqe128->generic.bde.tus.f.bdeFlags =
8939 BUFF_TYPE_BDE_IMMED;
8940 wqe128->generic.bde.tus.f.bdeSize = sgl->sge_len;
8941 wqe128->generic.bde.addrHigh = 0;
8942 wqe128->generic.bde.addrLow = 88; /* Word 22 */
8944 bf_set(wqe_wqes, &wqe128->fcp_iread.wqe_com, 1);
8946 /* Word 22-29 FCP CMND Payload */
8947 ptr = &wqe128->words[22];
8948 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
8951 case CMD_FCP_ICMND64_CR:
8952 /* word3 iocb=iotag wqe=payload_offset_len */
8953 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8954 bf_set(payload_offset_len, &wqe->fcp_icmd,
8955 xmit_len + sizeof(struct fcp_rsp));
8956 bf_set(cmd_buff_len, &wqe->fcp_icmd,
8958 /* word3 iocb=IO_TAG wqe=reserved */
8959 bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0);
8960 /* Always open the exchange */
8961 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 1);
8962 bf_set(wqe_iod, &wqe->fcp_icmd.wqe_com, LPFC_WQE_IOD_WRITE);
8963 bf_set(wqe_qosd, &wqe->fcp_icmd.wqe_com, 1);
8964 bf_set(wqe_lenloc, &wqe->fcp_icmd.wqe_com,
8965 LPFC_WQE_LENLOC_NONE);
8966 bf_set(wqe_erp, &wqe->fcp_icmd.wqe_com,
8967 iocbq->iocb.ulpFCP2Rcvy);
8968 if (iocbq->iocb_flag & LPFC_IO_OAS) {
8969 bf_set(wqe_oas, &wqe->fcp_icmd.wqe_com, 1);
8970 bf_set(wqe_ccpe, &wqe->fcp_icmd.wqe_com, 1);
8971 if (iocbq->priority) {
8972 bf_set(wqe_ccp, &wqe->fcp_icmd.wqe_com,
8973 (iocbq->priority << 1));
8975 bf_set(wqe_ccp, &wqe->fcp_icmd.wqe_com,
8976 (phba->cfg_XLanePriority << 1));
8979 /* Note, word 10 is already initialized to 0 */
8981 if (phba->fcp_embed_io) {
8982 struct lpfc_scsi_buf *lpfc_cmd;
8983 struct sli4_sge *sgl;
8984 union lpfc_wqe128 *wqe128;
8985 struct fcp_cmnd *fcp_cmnd;
8988 /* 128 byte wqe support here */
8989 wqe128 = (union lpfc_wqe128 *)wqe;
8991 lpfc_cmd = iocbq->context1;
8992 sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl;
8993 fcp_cmnd = lpfc_cmd->fcp_cmnd;
8995 /* Word 0-2 - FCP_CMND */
8996 wqe128->generic.bde.tus.f.bdeFlags =
8997 BUFF_TYPE_BDE_IMMED;
8998 wqe128->generic.bde.tus.f.bdeSize = sgl->sge_len;
8999 wqe128->generic.bde.addrHigh = 0;
9000 wqe128->generic.bde.addrLow = 88; /* Word 22 */
9002 bf_set(wqe_wqes, &wqe128->fcp_icmd.wqe_com, 1);
9004 /* Word 22-29 FCP CMND Payload */
9005 ptr = &wqe128->words[22];
9006 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
9009 case CMD_GEN_REQUEST64_CR:
9010 /* For this command calculate the xmit length of the
9014 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
9015 sizeof(struct ulp_bde64);
9016 for (i = 0; i < numBdes; i++) {
9017 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
9018 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
9020 xmit_len += bde.tus.f.bdeSize;
9022 /* word3 iocb=IO_TAG wqe=request_payload_len */
9023 wqe->gen_req.request_payload_len = xmit_len;
9024 /* word4 iocb=parameter wqe=relative_offset memcpy */
9025 /* word5 [rctl, type, df_ctl, la] copied in memcpy */
9026 /* word6 context tag copied in memcpy */
9027 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
9028 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
9029 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9030 "2015 Invalid CT %x command 0x%x\n",
9031 ct, iocbq->iocb.ulpCommand);
9034 bf_set(wqe_ct, &wqe->gen_req.wqe_com, 0);
9035 bf_set(wqe_tmo, &wqe->gen_req.wqe_com, iocbq->iocb.ulpTimeout);
9036 bf_set(wqe_pu, &wqe->gen_req.wqe_com, iocbq->iocb.ulpPU);
9037 bf_set(wqe_dbde, &wqe->gen_req.wqe_com, 1);
9038 bf_set(wqe_iod, &wqe->gen_req.wqe_com, LPFC_WQE_IOD_READ);
9039 bf_set(wqe_qosd, &wqe->gen_req.wqe_com, 1);
9040 bf_set(wqe_lenloc, &wqe->gen_req.wqe_com, LPFC_WQE_LENLOC_NONE);
9041 bf_set(wqe_ebde_cnt, &wqe->gen_req.wqe_com, 0);
9042 wqe->gen_req.max_response_payload_len = total_len - xmit_len;
9043 command_type = OTHER_COMMAND;
9045 case CMD_XMIT_ELS_RSP64_CX:
9046 ndlp = (struct lpfc_nodelist *)iocbq->context1;
9047 /* words0-2 BDE memcpy */
9048 /* word3 iocb=iotag32 wqe=response_payload_len */
9049 wqe->xmit_els_rsp.response_payload_len = xmit_len;
9051 wqe->xmit_els_rsp.word4 = 0;
9052 /* word5 iocb=rsvd wge=did */
9053 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
9054 iocbq->iocb.un.xseq64.xmit_els_remoteID);
9056 if_type = bf_get(lpfc_sli_intf_if_type,
9057 &phba->sli4_hba.sli_intf);
9058 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
9059 if (iocbq->vport->fc_flag & FC_PT2PT) {
9060 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
9061 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
9062 iocbq->vport->fc_myDID);
9063 if (iocbq->vport->fc_myDID == Fabric_DID) {
9065 &wqe->xmit_els_rsp.wqe_dest, 0);
9069 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com,
9070 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
9071 bf_set(wqe_pu, &wqe->xmit_els_rsp.wqe_com, iocbq->iocb.ulpPU);
9072 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
9073 iocbq->iocb.unsli3.rcvsli3.ox_id);
9074 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
9075 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
9076 phba->vpi_ids[iocbq->vport->vpi]);
9077 bf_set(wqe_dbde, &wqe->xmit_els_rsp.wqe_com, 1);
9078 bf_set(wqe_iod, &wqe->xmit_els_rsp.wqe_com, LPFC_WQE_IOD_WRITE);
9079 bf_set(wqe_qosd, &wqe->xmit_els_rsp.wqe_com, 1);
9080 bf_set(wqe_lenloc, &wqe->xmit_els_rsp.wqe_com,
9081 LPFC_WQE_LENLOC_WORD3);
9082 bf_set(wqe_ebde_cnt, &wqe->xmit_els_rsp.wqe_com, 0);
9083 bf_set(wqe_rsp_temp_rpi, &wqe->xmit_els_rsp,
9084 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
9085 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
9086 iocbq->context2)->virt);
9087 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
9088 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
9089 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
9090 iocbq->vport->fc_myDID);
9091 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com, 1);
9092 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
9093 phba->vpi_ids[phba->pport->vpi]);
9095 command_type = OTHER_COMMAND;
9097 case CMD_CLOSE_XRI_CN:
9098 case CMD_ABORT_XRI_CN:
9099 case CMD_ABORT_XRI_CX:
9100 /* words 0-2 memcpy should be 0 rserved */
9101 /* port will send abts */
9102 abrt_iotag = iocbq->iocb.un.acxri.abortContextTag;
9103 if (abrt_iotag != 0 && abrt_iotag <= phba->sli.last_iotag) {
9104 abrtiocbq = phba->sli.iocbq_lookup[abrt_iotag];
9105 fip = abrtiocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK;
9109 if ((iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN) || fip)
9111 * The link is down, or the command was ELS_FIP
9112 * so the fw does not need to send abts
9115 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
9117 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
9118 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
9119 /* word5 iocb=CONTEXT_TAG|IO_TAG wqe=reserved */
9120 wqe->abort_cmd.rsrvd5 = 0;
9121 bf_set(wqe_ct, &wqe->abort_cmd.wqe_com,
9122 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
9123 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
9125 * The abort handler will send us CMD_ABORT_XRI_CN or
9126 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
9128 bf_set(wqe_cmnd, &wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
9129 bf_set(wqe_qosd, &wqe->abort_cmd.wqe_com, 1);
9130 bf_set(wqe_lenloc, &wqe->abort_cmd.wqe_com,
9131 LPFC_WQE_LENLOC_NONE);
9132 cmnd = CMD_ABORT_XRI_CX;
9133 command_type = OTHER_COMMAND;
9136 case CMD_XMIT_BLS_RSP64_CX:
9137 ndlp = (struct lpfc_nodelist *)iocbq->context1;
9138 /* As BLS ABTS RSP WQE is very different from other WQEs,
9139 * we re-construct this WQE here based on information in
9140 * iocbq from scratch.
9142 memset(wqe, 0, sizeof(union lpfc_wqe));
9143 /* OX_ID is invariable to who sent ABTS to CT exchange */
9144 bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
9145 bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_rsp));
9146 if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_rsp) ==
9147 LPFC_ABTS_UNSOL_INT) {
9148 /* ABTS sent by initiator to CT exchange, the
9149 * RX_ID field will be filled with the newly
9150 * allocated responder XRI.
9152 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
9153 iocbq->sli4_xritag);
9155 /* ABTS sent by responder to CT exchange, the
9156 * RX_ID field will be filled with the responder
9159 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
9160 bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_rsp));
9162 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
9163 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
9166 bf_set(wqe_els_did, &wqe->xmit_bls_rsp.wqe_dest,
9168 bf_set(xmit_bls_rsp64_temprpi, &wqe->xmit_bls_rsp,
9169 iocbq->iocb.ulpContext);
9170 bf_set(wqe_ct, &wqe->xmit_bls_rsp.wqe_com, 1);
9171 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
9172 phba->vpi_ids[phba->pport->vpi]);
9173 bf_set(wqe_qosd, &wqe->xmit_bls_rsp.wqe_com, 1);
9174 bf_set(wqe_lenloc, &wqe->xmit_bls_rsp.wqe_com,
9175 LPFC_WQE_LENLOC_NONE);
9176 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
9177 command_type = OTHER_COMMAND;
9178 if (iocbq->iocb.un.xseq64.w5.hcsw.Rctl == FC_RCTL_BA_RJT) {
9179 bf_set(xmit_bls_rsp64_rjt_vspec, &wqe->xmit_bls_rsp,
9180 bf_get(lpfc_vndr_code, &iocbq->iocb.un.bls_rsp));
9181 bf_set(xmit_bls_rsp64_rjt_expc, &wqe->xmit_bls_rsp,
9182 bf_get(lpfc_rsn_expln, &iocbq->iocb.un.bls_rsp));
9183 bf_set(xmit_bls_rsp64_rjt_rsnc, &wqe->xmit_bls_rsp,
9184 bf_get(lpfc_rsn_code, &iocbq->iocb.un.bls_rsp));
9188 case CMD_SEND_FRAME:
9189 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
9190 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
9192 case CMD_XRI_ABORTED_CX:
9193 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
9194 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
9195 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
9196 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
9197 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
9199 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9200 "2014 Invalid command 0x%x\n",
9201 iocbq->iocb.ulpCommand);
9206 if (iocbq->iocb_flag & LPFC_IO_DIF_PASS)
9207 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_PASSTHRU);
9208 else if (iocbq->iocb_flag & LPFC_IO_DIF_STRIP)
9209 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_STRIP);
9210 else if (iocbq->iocb_flag & LPFC_IO_DIF_INSERT)
9211 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_INSERT);
9212 iocbq->iocb_flag &= ~(LPFC_IO_DIF_PASS | LPFC_IO_DIF_STRIP |
9213 LPFC_IO_DIF_INSERT);
9214 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
9215 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
9216 wqe->generic.wqe_com.abort_tag = abort_tag;
9217 bf_set(wqe_cmd_type, &wqe->generic.wqe_com, command_type);
9218 bf_set(wqe_cmnd, &wqe->generic.wqe_com, cmnd);
9219 bf_set(wqe_class, &wqe->generic.wqe_com, iocbq->iocb.ulpClass);
9220 bf_set(wqe_cqid, &wqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
9225 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
9226 * @phba: Pointer to HBA context object.
9227 * @ring_number: SLI ring number to issue iocb on.
9228 * @piocb: Pointer to command iocb.
9229 * @flag: Flag indicating if this command can be put into txq.
9231 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
9232 * an iocb command to an HBA with SLI-4 interface spec.
9234 * This function is called with hbalock held. The function will return success
9235 * after it successfully submit the iocb to firmware or after adding to the
9239 __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
9240 struct lpfc_iocbq *piocb, uint32_t flag)
9242 struct lpfc_sglq *sglq;
9243 union lpfc_wqe *wqe;
9244 union lpfc_wqe128 wqe128;
9245 struct lpfc_queue *wq;
9246 struct lpfc_sli_ring *pring;
9249 if ((piocb->iocb_flag & LPFC_IO_FCP) ||
9250 (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
9251 if (!phba->cfg_fof || (!(piocb->iocb_flag & LPFC_IO_OAS)))
9252 wq = phba->sli4_hba.fcp_wq[piocb->hba_wqidx];
9254 wq = phba->sli4_hba.oas_wq;
9256 wq = phba->sli4_hba.els_wq;
9259 /* Get corresponding ring */
9263 * The WQE can be either 64 or 128 bytes,
9264 * so allocate space on the stack assuming the largest.
9266 wqe = (union lpfc_wqe *)&wqe128;
9268 lockdep_assert_held(&phba->hbalock);
9270 if (piocb->sli4_xritag == NO_XRI) {
9271 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
9272 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
9275 if (!list_empty(&pring->txq)) {
9276 if (!(flag & SLI_IOCB_RET_IOCB)) {
9277 __lpfc_sli_ringtx_put(phba,
9279 return IOCB_SUCCESS;
9284 sglq = __lpfc_sli_get_els_sglq(phba, piocb);
9286 if (!(flag & SLI_IOCB_RET_IOCB)) {
9287 __lpfc_sli_ringtx_put(phba,
9290 return IOCB_SUCCESS;
9296 } else if (piocb->iocb_flag & LPFC_IO_FCP)
9297 /* These IO's already have an XRI and a mapped sgl. */
9301 * This is a continuation of a commandi,(CX) so this
9302 * sglq is on the active list
9304 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_lxritag);
9310 piocb->sli4_lxritag = sglq->sli4_lxritag;
9311 piocb->sli4_xritag = sglq->sli4_xritag;
9312 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocb, sglq))
9316 if (lpfc_sli4_iocb2wqe(phba, piocb, wqe))
9319 if (lpfc_sli4_wq_put(wq, wqe))
9321 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
9327 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
9329 * This routine wraps the actual lockless version for issusing IOCB function
9330 * pointer from the lpfc_hba struct.
9333 * IOCB_ERROR - Error
9334 * IOCB_SUCCESS - Success
9338 __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
9339 struct lpfc_iocbq *piocb, uint32_t flag)
9341 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
9345 * lpfc_sli_api_table_setup - Set up sli api function jump table
9346 * @phba: The hba struct for which this call is being executed.
9347 * @dev_grp: The HBA PCI-Device group number.
9349 * This routine sets up the SLI interface API function jump table in @phba
9351 * Returns: 0 - success, -ENODEV - failure.
9354 lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
9358 case LPFC_PCI_DEV_LP:
9359 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
9360 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
9362 case LPFC_PCI_DEV_OC:
9363 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
9364 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
9367 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9368 "1419 Invalid HBA PCI-device group: 0x%x\n",
9373 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
9378 * lpfc_sli4_calc_ring - Calculates which ring to use
9379 * @phba: Pointer to HBA context object.
9380 * @piocb: Pointer to command iocb.
9382 * For SLI4 only, FCP IO can deferred to one fo many WQs, based on
9383 * hba_wqidx, thus we need to calculate the corresponding ring.
9384 * Since ABORTS must go on the same WQ of the command they are
9385 * aborting, we use command's hba_wqidx.
9387 struct lpfc_sli_ring *
9388 lpfc_sli4_calc_ring(struct lpfc_hba *phba, struct lpfc_iocbq *piocb)
9390 if (piocb->iocb_flag & (LPFC_IO_FCP | LPFC_USE_FCPWQIDX)) {
9391 if (!(phba->cfg_fof) ||
9392 (!(piocb->iocb_flag & LPFC_IO_FOF))) {
9393 if (unlikely(!phba->sli4_hba.fcp_wq))
9396 * for abort iocb hba_wqidx should already
9397 * be setup based on what work queue we used.
9399 if (!(piocb->iocb_flag & LPFC_USE_FCPWQIDX))
9401 lpfc_sli4_scmd_to_wqidx_distr(phba,
9403 return phba->sli4_hba.fcp_wq[piocb->hba_wqidx]->pring;
9405 if (unlikely(!phba->sli4_hba.oas_wq))
9407 piocb->hba_wqidx = 0;
9408 return phba->sli4_hba.oas_wq->pring;
9411 if (unlikely(!phba->sli4_hba.els_wq))
9413 piocb->hba_wqidx = 0;
9414 return phba->sli4_hba.els_wq->pring;
9419 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
9420 * @phba: Pointer to HBA context object.
9421 * @pring: Pointer to driver SLI ring object.
9422 * @piocb: Pointer to command iocb.
9423 * @flag: Flag indicating if this command can be put into txq.
9425 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
9426 * function. This function gets the hbalock and calls
9427 * __lpfc_sli_issue_iocb function and will return the error returned
9428 * by __lpfc_sli_issue_iocb function. This wrapper is used by
9429 * functions which do not hold hbalock.
9432 lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
9433 struct lpfc_iocbq *piocb, uint32_t flag)
9435 struct lpfc_hba_eq_hdl *hba_eq_hdl;
9436 struct lpfc_sli_ring *pring;
9437 struct lpfc_queue *fpeq;
9438 struct lpfc_eqe *eqe;
9439 unsigned long iflags;
9442 if (phba->sli_rev == LPFC_SLI_REV4) {
9443 pring = lpfc_sli4_calc_ring(phba, piocb);
9444 if (unlikely(pring == NULL))
9447 spin_lock_irqsave(&pring->ring_lock, iflags);
9448 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
9449 spin_unlock_irqrestore(&pring->ring_lock, iflags);
9451 if (lpfc_fcp_look_ahead && (piocb->iocb_flag & LPFC_IO_FCP)) {
9452 idx = piocb->hba_wqidx;
9453 hba_eq_hdl = &phba->sli4_hba.hba_eq_hdl[idx];
9455 if (atomic_dec_and_test(&hba_eq_hdl->hba_eq_in_use)) {
9457 /* Get associated EQ with this index */
9458 fpeq = phba->sli4_hba.hba_eq[idx];
9460 /* Turn off interrupts from this EQ */
9461 lpfc_sli4_eq_clr_intr(fpeq);
9464 * Process all the events on FCP EQ
9466 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
9467 lpfc_sli4_hba_handle_eqe(phba,
9469 fpeq->EQ_processed++;
9472 /* Always clear and re-arm the EQ */
9473 lpfc_sli4_eq_release(fpeq,
9476 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
9479 /* For now, SLI2/3 will still use hbalock */
9480 spin_lock_irqsave(&phba->hbalock, iflags);
9481 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
9482 spin_unlock_irqrestore(&phba->hbalock, iflags);
9488 * lpfc_extra_ring_setup - Extra ring setup function
9489 * @phba: Pointer to HBA context object.
9491 * This function is called while driver attaches with the
9492 * HBA to setup the extra ring. The extra ring is used
9493 * only when driver needs to support target mode functionality
9494 * or IP over FC functionalities.
9496 * This function is called with no lock held. SLI3 only.
9499 lpfc_extra_ring_setup( struct lpfc_hba *phba)
9501 struct lpfc_sli *psli;
9502 struct lpfc_sli_ring *pring;
9506 /* Adjust cmd/rsp ring iocb entries more evenly */
9508 /* Take some away from the FCP ring */
9509 pring = &psli->sli3_ring[LPFC_FCP_RING];
9510 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
9511 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
9512 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
9513 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
9515 /* and give them to the extra ring */
9516 pring = &psli->sli3_ring[LPFC_EXTRA_RING];
9518 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
9519 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
9520 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
9521 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
9523 /* Setup default profile for this ring */
9524 pring->iotag_max = 4096;
9525 pring->num_mask = 1;
9526 pring->prt[0].profile = 0; /* Mask 0 */
9527 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
9528 pring->prt[0].type = phba->cfg_multi_ring_type;
9529 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
9533 /* lpfc_sli_abts_err_handler - handle a failed ABTS request from an SLI3 port.
9534 * @phba: Pointer to HBA context object.
9535 * @iocbq: Pointer to iocb object.
9537 * The async_event handler calls this routine when it receives
9538 * an ASYNC_STATUS_CN event from the port. The port generates
9539 * this event when an Abort Sequence request to an rport fails
9540 * twice in succession. The abort could be originated by the
9541 * driver or by the port. The ABTS could have been for an ELS
9542 * or FCP IO. The port only generates this event when an ABTS
9543 * fails to complete after one retry.
9546 lpfc_sli_abts_err_handler(struct lpfc_hba *phba,
9547 struct lpfc_iocbq *iocbq)
9549 struct lpfc_nodelist *ndlp = NULL;
9550 uint16_t rpi = 0, vpi = 0;
9551 struct lpfc_vport *vport = NULL;
9553 /* The rpi in the ulpContext is vport-sensitive. */
9554 vpi = iocbq->iocb.un.asyncstat.sub_ctxt_tag;
9555 rpi = iocbq->iocb.ulpContext;
9557 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9558 "3092 Port generated ABTS async event "
9559 "on vpi %d rpi %d status 0x%x\n",
9560 vpi, rpi, iocbq->iocb.ulpStatus);
9562 vport = lpfc_find_vport_by_vpid(phba, vpi);
9565 ndlp = lpfc_findnode_rpi(vport, rpi);
9566 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
9569 if (iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT)
9570 lpfc_sli_abts_recover_port(vport, ndlp);
9574 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9575 "3095 Event Context not found, no "
9576 "action on vpi %d rpi %d status 0x%x, reason 0x%x\n",
9577 iocbq->iocb.ulpContext, iocbq->iocb.ulpStatus,
9581 /* lpfc_sli4_abts_err_handler - handle a failed ABTS request from an SLI4 port.
9582 * @phba: pointer to HBA context object.
9583 * @ndlp: nodelist pointer for the impacted rport.
9584 * @axri: pointer to the wcqe containing the failed exchange.
9586 * The driver calls this routine when it receives an ABORT_XRI_FCP CQE from the
9587 * port. The port generates this event when an abort exchange request to an
9588 * rport fails twice in succession with no reply. The abort could be originated
9589 * by the driver or by the port. The ABTS could have been for an ELS or FCP IO.
9592 lpfc_sli4_abts_err_handler(struct lpfc_hba *phba,
9593 struct lpfc_nodelist *ndlp,
9594 struct sli4_wcqe_xri_aborted *axri)
9596 struct lpfc_vport *vport;
9597 uint32_t ext_status = 0;
9599 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
9600 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9601 "3115 Node Context not found, driver "
9602 "ignoring abts err event\n");
9606 vport = ndlp->vport;
9607 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9608 "3116 Port generated FCP XRI ABORT event on "
9609 "vpi %d rpi %d xri x%x status 0x%x parameter x%x\n",
9610 ndlp->vport->vpi, phba->sli4_hba.rpi_ids[ndlp->nlp_rpi],
9611 bf_get(lpfc_wcqe_xa_xri, axri),
9612 bf_get(lpfc_wcqe_xa_status, axri),
9616 * Catch the ABTS protocol failure case. Older OCe FW releases returned
9617 * LOCAL_REJECT and 0 for a failed ABTS exchange and later OCe and
9618 * LPe FW releases returned LOCAL_REJECT and SEQUENCE_TIMEOUT.
9620 ext_status = axri->parameter & IOERR_PARAM_MASK;
9621 if ((bf_get(lpfc_wcqe_xa_status, axri) == IOSTAT_LOCAL_REJECT) &&
9622 ((ext_status == IOERR_SEQUENCE_TIMEOUT) || (ext_status == 0)))
9623 lpfc_sli_abts_recover_port(vport, ndlp);
9627 * lpfc_sli_async_event_handler - ASYNC iocb handler function
9628 * @phba: Pointer to HBA context object.
9629 * @pring: Pointer to driver SLI ring object.
9630 * @iocbq: Pointer to iocb object.
9632 * This function is called by the slow ring event handler
9633 * function when there is an ASYNC event iocb in the ring.
9634 * This function is called with no lock held.
9635 * Currently this function handles only temperature related
9636 * ASYNC events. The function decodes the temperature sensor
9637 * event message and posts events for the management applications.
9640 lpfc_sli_async_event_handler(struct lpfc_hba * phba,
9641 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
9645 struct temp_event temp_event_data;
9646 struct Scsi_Host *shost;
9649 icmd = &iocbq->iocb;
9650 evt_code = icmd->un.asyncstat.evt_code;
9653 case ASYNC_TEMP_WARN:
9654 case ASYNC_TEMP_SAFE:
9655 temp_event_data.data = (uint32_t) icmd->ulpContext;
9656 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
9657 if (evt_code == ASYNC_TEMP_WARN) {
9658 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
9659 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
9660 "0347 Adapter is very hot, please take "
9661 "corrective action. temperature : %d Celsius\n",
9662 (uint32_t) icmd->ulpContext);
9664 temp_event_data.event_code = LPFC_NORMAL_TEMP;
9665 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
9666 "0340 Adapter temperature is OK now. "
9667 "temperature : %d Celsius\n",
9668 (uint32_t) icmd->ulpContext);
9671 /* Send temperature change event to applications */
9672 shost = lpfc_shost_from_vport(phba->pport);
9673 fc_host_post_vendor_event(shost, fc_get_event_number(),
9674 sizeof(temp_event_data), (char *) &temp_event_data,
9677 case ASYNC_STATUS_CN:
9678 lpfc_sli_abts_err_handler(phba, iocbq);
9681 iocb_w = (uint32_t *) icmd;
9682 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9683 "0346 Ring %d handler: unexpected ASYNC_STATUS"
9685 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
9686 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
9687 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
9688 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
9689 pring->ringno, icmd->un.asyncstat.evt_code,
9690 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
9691 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
9692 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
9693 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
9701 * lpfc_sli4_setup - SLI ring setup function
9702 * @phba: Pointer to HBA context object.
9704 * lpfc_sli_setup sets up rings of the SLI interface with
9705 * number of iocbs per ring and iotags. This function is
9706 * called while driver attach to the HBA and before the
9707 * interrupts are enabled. So there is no need for locking.
9709 * This function always returns 0.
9712 lpfc_sli4_setup(struct lpfc_hba *phba)
9714 struct lpfc_sli_ring *pring;
9716 pring = phba->sli4_hba.els_wq->pring;
9717 pring->num_mask = LPFC_MAX_RING_MASK;
9718 pring->prt[0].profile = 0; /* Mask 0 */
9719 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
9720 pring->prt[0].type = FC_TYPE_ELS;
9721 pring->prt[0].lpfc_sli_rcv_unsol_event =
9722 lpfc_els_unsol_event;
9723 pring->prt[1].profile = 0; /* Mask 1 */
9724 pring->prt[1].rctl = FC_RCTL_ELS_REP;
9725 pring->prt[1].type = FC_TYPE_ELS;
9726 pring->prt[1].lpfc_sli_rcv_unsol_event =
9727 lpfc_els_unsol_event;
9728 pring->prt[2].profile = 0; /* Mask 2 */
9729 /* NameServer Inquiry */
9730 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
9732 pring->prt[2].type = FC_TYPE_CT;
9733 pring->prt[2].lpfc_sli_rcv_unsol_event =
9734 lpfc_ct_unsol_event;
9735 pring->prt[3].profile = 0; /* Mask 3 */
9736 /* NameServer response */
9737 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
9739 pring->prt[3].type = FC_TYPE_CT;
9740 pring->prt[3].lpfc_sli_rcv_unsol_event =
9741 lpfc_ct_unsol_event;
9746 * lpfc_sli_setup - SLI ring setup function
9747 * @phba: Pointer to HBA context object.
9749 * lpfc_sli_setup sets up rings of the SLI interface with
9750 * number of iocbs per ring and iotags. This function is
9751 * called while driver attach to the HBA and before the
9752 * interrupts are enabled. So there is no need for locking.
9754 * This function always returns 0. SLI3 only.
9757 lpfc_sli_setup(struct lpfc_hba *phba)
9759 int i, totiocbsize = 0;
9760 struct lpfc_sli *psli = &phba->sli;
9761 struct lpfc_sli_ring *pring;
9763 psli->num_rings = MAX_SLI3_CONFIGURED_RINGS;
9766 psli->iocbq_lookup = NULL;
9767 psli->iocbq_lookup_len = 0;
9768 psli->last_iotag = 0;
9770 for (i = 0; i < psli->num_rings; i++) {
9771 pring = &psli->sli3_ring[i];
9773 case LPFC_FCP_RING: /* ring 0 - FCP */
9774 /* numCiocb and numRiocb are used in config_port */
9775 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
9776 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
9777 pring->sli.sli3.numCiocb +=
9778 SLI2_IOCB_CMD_R1XTRA_ENTRIES;
9779 pring->sli.sli3.numRiocb +=
9780 SLI2_IOCB_RSP_R1XTRA_ENTRIES;
9781 pring->sli.sli3.numCiocb +=
9782 SLI2_IOCB_CMD_R3XTRA_ENTRIES;
9783 pring->sli.sli3.numRiocb +=
9784 SLI2_IOCB_RSP_R3XTRA_ENTRIES;
9785 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
9786 SLI3_IOCB_CMD_SIZE :
9788 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
9789 SLI3_IOCB_RSP_SIZE :
9791 pring->iotag_ctr = 0;
9793 (phba->cfg_hba_queue_depth * 2);
9794 pring->fast_iotag = pring->iotag_max;
9795 pring->num_mask = 0;
9797 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
9798 /* numCiocb and numRiocb are used in config_port */
9799 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
9800 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
9801 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
9802 SLI3_IOCB_CMD_SIZE :
9804 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
9805 SLI3_IOCB_RSP_SIZE :
9807 pring->iotag_max = phba->cfg_hba_queue_depth;
9808 pring->num_mask = 0;
9810 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
9811 /* numCiocb and numRiocb are used in config_port */
9812 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
9813 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
9814 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
9815 SLI3_IOCB_CMD_SIZE :
9817 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
9818 SLI3_IOCB_RSP_SIZE :
9820 pring->fast_iotag = 0;
9821 pring->iotag_ctr = 0;
9822 pring->iotag_max = 4096;
9823 pring->lpfc_sli_rcv_async_status =
9824 lpfc_sli_async_event_handler;
9825 pring->num_mask = LPFC_MAX_RING_MASK;
9826 pring->prt[0].profile = 0; /* Mask 0 */
9827 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
9828 pring->prt[0].type = FC_TYPE_ELS;
9829 pring->prt[0].lpfc_sli_rcv_unsol_event =
9830 lpfc_els_unsol_event;
9831 pring->prt[1].profile = 0; /* Mask 1 */
9832 pring->prt[1].rctl = FC_RCTL_ELS_REP;
9833 pring->prt[1].type = FC_TYPE_ELS;
9834 pring->prt[1].lpfc_sli_rcv_unsol_event =
9835 lpfc_els_unsol_event;
9836 pring->prt[2].profile = 0; /* Mask 2 */
9837 /* NameServer Inquiry */
9838 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
9840 pring->prt[2].type = FC_TYPE_CT;
9841 pring->prt[2].lpfc_sli_rcv_unsol_event =
9842 lpfc_ct_unsol_event;
9843 pring->prt[3].profile = 0; /* Mask 3 */
9844 /* NameServer response */
9845 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
9847 pring->prt[3].type = FC_TYPE_CT;
9848 pring->prt[3].lpfc_sli_rcv_unsol_event =
9849 lpfc_ct_unsol_event;
9852 totiocbsize += (pring->sli.sli3.numCiocb *
9853 pring->sli.sli3.sizeCiocb) +
9854 (pring->sli.sli3.numRiocb * pring->sli.sli3.sizeRiocb);
9856 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
9857 /* Too many cmd / rsp ring entries in SLI2 SLIM */
9858 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
9859 "SLI2 SLIM Data: x%x x%lx\n",
9860 phba->brd_no, totiocbsize,
9861 (unsigned long) MAX_SLIM_IOCB_SIZE);
9863 if (phba->cfg_multi_ring_support == 2)
9864 lpfc_extra_ring_setup(phba);
9870 * lpfc_sli4_queue_init - Queue initialization function
9871 * @phba: Pointer to HBA context object.
9873 * lpfc_sli4_queue_init sets up mailbox queues and iocb queues for each
9874 * ring. This function also initializes ring indices of each ring.
9875 * This function is called during the initialization of the SLI
9876 * interface of an HBA.
9877 * This function is called with no lock held and always returns
9881 lpfc_sli4_queue_init(struct lpfc_hba *phba)
9883 struct lpfc_sli *psli;
9884 struct lpfc_sli_ring *pring;
9888 spin_lock_irq(&phba->hbalock);
9889 INIT_LIST_HEAD(&psli->mboxq);
9890 INIT_LIST_HEAD(&psli->mboxq_cmpl);
9891 /* Initialize list headers for txq and txcmplq as double linked lists */
9892 for (i = 0; i < phba->cfg_fcp_io_channel; i++) {
9893 pring = phba->sli4_hba.fcp_wq[i]->pring;
9895 pring->ringno = LPFC_FCP_RING;
9896 INIT_LIST_HEAD(&pring->txq);
9897 INIT_LIST_HEAD(&pring->txcmplq);
9898 INIT_LIST_HEAD(&pring->iocb_continueq);
9899 spin_lock_init(&pring->ring_lock);
9901 for (i = 0; i < phba->cfg_nvme_io_channel; i++) {
9902 pring = phba->sli4_hba.nvme_wq[i]->pring;
9904 pring->ringno = LPFC_FCP_RING;
9905 INIT_LIST_HEAD(&pring->txq);
9906 INIT_LIST_HEAD(&pring->txcmplq);
9907 INIT_LIST_HEAD(&pring->iocb_continueq);
9908 spin_lock_init(&pring->ring_lock);
9910 pring = phba->sli4_hba.els_wq->pring;
9912 pring->ringno = LPFC_ELS_RING;
9913 INIT_LIST_HEAD(&pring->txq);
9914 INIT_LIST_HEAD(&pring->txcmplq);
9915 INIT_LIST_HEAD(&pring->iocb_continueq);
9916 spin_lock_init(&pring->ring_lock);
9918 if (phba->cfg_nvme_io_channel) {
9919 pring = phba->sli4_hba.nvmels_wq->pring;
9921 pring->ringno = LPFC_ELS_RING;
9922 INIT_LIST_HEAD(&pring->txq);
9923 INIT_LIST_HEAD(&pring->txcmplq);
9924 INIT_LIST_HEAD(&pring->iocb_continueq);
9925 spin_lock_init(&pring->ring_lock);
9928 if (phba->cfg_fof) {
9929 pring = phba->sli4_hba.oas_wq->pring;
9931 pring->ringno = LPFC_FCP_RING;
9932 INIT_LIST_HEAD(&pring->txq);
9933 INIT_LIST_HEAD(&pring->txcmplq);
9934 INIT_LIST_HEAD(&pring->iocb_continueq);
9935 spin_lock_init(&pring->ring_lock);
9938 spin_unlock_irq(&phba->hbalock);
9942 * lpfc_sli_queue_init - Queue initialization function
9943 * @phba: Pointer to HBA context object.
9945 * lpfc_sli_queue_init sets up mailbox queues and iocb queues for each
9946 * ring. This function also initializes ring indices of each ring.
9947 * This function is called during the initialization of the SLI
9948 * interface of an HBA.
9949 * This function is called with no lock held and always returns
9953 lpfc_sli_queue_init(struct lpfc_hba *phba)
9955 struct lpfc_sli *psli;
9956 struct lpfc_sli_ring *pring;
9960 spin_lock_irq(&phba->hbalock);
9961 INIT_LIST_HEAD(&psli->mboxq);
9962 INIT_LIST_HEAD(&psli->mboxq_cmpl);
9963 /* Initialize list headers for txq and txcmplq as double linked lists */
9964 for (i = 0; i < psli->num_rings; i++) {
9965 pring = &psli->sli3_ring[i];
9967 pring->sli.sli3.next_cmdidx = 0;
9968 pring->sli.sli3.local_getidx = 0;
9969 pring->sli.sli3.cmdidx = 0;
9970 INIT_LIST_HEAD(&pring->iocb_continueq);
9971 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
9972 INIT_LIST_HEAD(&pring->postbufq);
9974 INIT_LIST_HEAD(&pring->txq);
9975 INIT_LIST_HEAD(&pring->txcmplq);
9976 spin_lock_init(&pring->ring_lock);
9978 spin_unlock_irq(&phba->hbalock);
9982 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
9983 * @phba: Pointer to HBA context object.
9985 * This routine flushes the mailbox command subsystem. It will unconditionally
9986 * flush all the mailbox commands in the three possible stages in the mailbox
9987 * command sub-system: pending mailbox command queue; the outstanding mailbox
9988 * command; and completed mailbox command queue. It is caller's responsibility
9989 * to make sure that the driver is in the proper state to flush the mailbox
9990 * command sub-system. Namely, the posting of mailbox commands into the
9991 * pending mailbox command queue from the various clients must be stopped;
9992 * either the HBA is in a state that it will never works on the outstanding
9993 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
9994 * mailbox command has been completed.
9997 lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
9999 LIST_HEAD(completions);
10000 struct lpfc_sli *psli = &phba->sli;
10002 unsigned long iflag;
10004 /* Flush all the mailbox commands in the mbox system */
10005 spin_lock_irqsave(&phba->hbalock, iflag);
10006 /* The pending mailbox command queue */
10007 list_splice_init(&phba->sli.mboxq, &completions);
10008 /* The outstanding active mailbox command */
10009 if (psli->mbox_active) {
10010 list_add_tail(&psli->mbox_active->list, &completions);
10011 psli->mbox_active = NULL;
10012 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
10014 /* The completed mailbox command queue */
10015 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
10016 spin_unlock_irqrestore(&phba->hbalock, iflag);
10018 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
10019 while (!list_empty(&completions)) {
10020 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
10021 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
10022 if (pmb->mbox_cmpl)
10023 pmb->mbox_cmpl(phba, pmb);
10028 * lpfc_sli_host_down - Vport cleanup function
10029 * @vport: Pointer to virtual port object.
10031 * lpfc_sli_host_down is called to clean up the resources
10032 * associated with a vport before destroying virtual
10033 * port data structures.
10034 * This function does following operations:
10035 * - Free discovery resources associated with this virtual
10037 * - Free iocbs associated with this virtual port in
10039 * - Send abort for all iocb commands associated with this
10040 * vport in txcmplq.
10042 * This function is called with no lock held and always returns 1.
10045 lpfc_sli_host_down(struct lpfc_vport *vport)
10047 LIST_HEAD(completions);
10048 struct lpfc_hba *phba = vport->phba;
10049 struct lpfc_sli *psli = &phba->sli;
10050 struct lpfc_queue *qp = NULL;
10051 struct lpfc_sli_ring *pring;
10052 struct lpfc_iocbq *iocb, *next_iocb;
10054 unsigned long flags = 0;
10055 uint16_t prev_pring_flag;
10057 lpfc_cleanup_discovery_resources(vport);
10059 spin_lock_irqsave(&phba->hbalock, flags);
10062 * Error everything on the txq since these iocbs
10063 * have not been given to the FW yet.
10064 * Also issue ABTS for everything on the txcmplq
10066 if (phba->sli_rev != LPFC_SLI_REV4) {
10067 for (i = 0; i < psli->num_rings; i++) {
10068 pring = &psli->sli3_ring[i];
10069 prev_pring_flag = pring->flag;
10070 /* Only slow rings */
10071 if (pring->ringno == LPFC_ELS_RING) {
10072 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10073 /* Set the lpfc data pending flag */
10074 set_bit(LPFC_DATA_READY, &phba->data_flags);
10076 list_for_each_entry_safe(iocb, next_iocb,
10077 &pring->txq, list) {
10078 if (iocb->vport != vport)
10080 list_move_tail(&iocb->list, &completions);
10082 list_for_each_entry_safe(iocb, next_iocb,
10083 &pring->txcmplq, list) {
10084 if (iocb->vport != vport)
10086 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
10088 pring->flag = prev_pring_flag;
10091 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
10095 if (pring == phba->sli4_hba.els_wq->pring) {
10096 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10097 /* Set the lpfc data pending flag */
10098 set_bit(LPFC_DATA_READY, &phba->data_flags);
10100 prev_pring_flag = pring->flag;
10101 spin_lock_irq(&pring->ring_lock);
10102 list_for_each_entry_safe(iocb, next_iocb,
10103 &pring->txq, list) {
10104 if (iocb->vport != vport)
10106 list_move_tail(&iocb->list, &completions);
10108 spin_unlock_irq(&pring->ring_lock);
10109 list_for_each_entry_safe(iocb, next_iocb,
10110 &pring->txcmplq, list) {
10111 if (iocb->vport != vport)
10113 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
10115 pring->flag = prev_pring_flag;
10118 spin_unlock_irqrestore(&phba->hbalock, flags);
10120 /* Cancel all the IOCBs from the completions list */
10121 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
10127 * lpfc_sli_hba_down - Resource cleanup function for the HBA
10128 * @phba: Pointer to HBA context object.
10130 * This function cleans up all iocb, buffers, mailbox commands
10131 * while shutting down the HBA. This function is called with no
10132 * lock held and always returns 1.
10133 * This function does the following to cleanup driver resources:
10134 * - Free discovery resources for each virtual port
10135 * - Cleanup any pending fabric iocbs
10136 * - Iterate through the iocb txq and free each entry
10138 * - Free up any buffer posted to the HBA
10139 * - Free mailbox commands in the mailbox queue.
10142 lpfc_sli_hba_down(struct lpfc_hba *phba)
10144 LIST_HEAD(completions);
10145 struct lpfc_sli *psli = &phba->sli;
10146 struct lpfc_queue *qp = NULL;
10147 struct lpfc_sli_ring *pring;
10148 struct lpfc_dmabuf *buf_ptr;
10149 unsigned long flags = 0;
10152 /* Shutdown the mailbox command sub-system */
10153 lpfc_sli_mbox_sys_shutdown(phba, LPFC_MBX_WAIT);
10155 lpfc_hba_down_prep(phba);
10157 lpfc_fabric_abort_hba(phba);
10159 spin_lock_irqsave(&phba->hbalock, flags);
10162 * Error everything on the txq since these iocbs
10163 * have not been given to the FW yet.
10165 if (phba->sli_rev != LPFC_SLI_REV4) {
10166 for (i = 0; i < psli->num_rings; i++) {
10167 pring = &psli->sli3_ring[i];
10168 /* Only slow rings */
10169 if (pring->ringno == LPFC_ELS_RING) {
10170 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10171 /* Set the lpfc data pending flag */
10172 set_bit(LPFC_DATA_READY, &phba->data_flags);
10174 list_splice_init(&pring->txq, &completions);
10177 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
10181 spin_lock_irq(&pring->ring_lock);
10182 list_splice_init(&pring->txq, &completions);
10183 spin_unlock_irq(&pring->ring_lock);
10184 if (pring == phba->sli4_hba.els_wq->pring) {
10185 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10186 /* Set the lpfc data pending flag */
10187 set_bit(LPFC_DATA_READY, &phba->data_flags);
10191 spin_unlock_irqrestore(&phba->hbalock, flags);
10193 /* Cancel all the IOCBs from the completions list */
10194 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
10197 spin_lock_irqsave(&phba->hbalock, flags);
10198 list_splice_init(&phba->elsbuf, &completions);
10199 phba->elsbuf_cnt = 0;
10200 phba->elsbuf_prev_cnt = 0;
10201 spin_unlock_irqrestore(&phba->hbalock, flags);
10203 while (!list_empty(&completions)) {
10204 list_remove_head(&completions, buf_ptr,
10205 struct lpfc_dmabuf, list);
10206 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
10210 /* Return any active mbox cmds */
10211 del_timer_sync(&psli->mbox_tmo);
10213 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
10214 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
10215 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
10221 * lpfc_sli_pcimem_bcopy - SLI memory copy function
10222 * @srcp: Source memory pointer.
10223 * @destp: Destination memory pointer.
10224 * @cnt: Number of words required to be copied.
10226 * This function is used for copying data between driver memory
10227 * and the SLI memory. This function also changes the endianness
10228 * of each word if native endianness is different from SLI
10229 * endianness. This function can be called with or without
10233 lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
10235 uint32_t *src = srcp;
10236 uint32_t *dest = destp;
10240 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
10242 ldata = le32_to_cpu(ldata);
10251 * lpfc_sli_bemem_bcopy - SLI memory copy function
10252 * @srcp: Source memory pointer.
10253 * @destp: Destination memory pointer.
10254 * @cnt: Number of words required to be copied.
10256 * This function is used for copying data between a data structure
10257 * with big endian representation to local endianness.
10258 * This function can be called with or without lock.
10261 lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
10263 uint32_t *src = srcp;
10264 uint32_t *dest = destp;
10268 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
10270 ldata = be32_to_cpu(ldata);
10278 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
10279 * @phba: Pointer to HBA context object.
10280 * @pring: Pointer to driver SLI ring object.
10281 * @mp: Pointer to driver buffer object.
10283 * This function is called with no lock held.
10284 * It always return zero after adding the buffer to the postbufq
10288 lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10289 struct lpfc_dmabuf *mp)
10291 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
10293 spin_lock_irq(&phba->hbalock);
10294 list_add_tail(&mp->list, &pring->postbufq);
10295 pring->postbufq_cnt++;
10296 spin_unlock_irq(&phba->hbalock);
10301 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
10302 * @phba: Pointer to HBA context object.
10304 * When HBQ is enabled, buffers are searched based on tags. This function
10305 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
10306 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
10307 * does not conflict with tags of buffer posted for unsolicited events.
10308 * The function returns the allocated tag. The function is called with
10312 lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
10314 spin_lock_irq(&phba->hbalock);
10315 phba->buffer_tag_count++;
10317 * Always set the QUE_BUFTAG_BIT to distiguish between
10318 * a tag assigned by HBQ.
10320 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
10321 spin_unlock_irq(&phba->hbalock);
10322 return phba->buffer_tag_count;
10326 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
10327 * @phba: Pointer to HBA context object.
10328 * @pring: Pointer to driver SLI ring object.
10329 * @tag: Buffer tag.
10331 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
10332 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
10333 * iocb is posted to the response ring with the tag of the buffer.
10334 * This function searches the pring->postbufq list using the tag
10335 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
10336 * iocb. If the buffer is found then lpfc_dmabuf object of the
10337 * buffer is returned to the caller else NULL is returned.
10338 * This function is called with no lock held.
10340 struct lpfc_dmabuf *
10341 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10344 struct lpfc_dmabuf *mp, *next_mp;
10345 struct list_head *slp = &pring->postbufq;
10347 /* Search postbufq, from the beginning, looking for a match on tag */
10348 spin_lock_irq(&phba->hbalock);
10349 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
10350 if (mp->buffer_tag == tag) {
10351 list_del_init(&mp->list);
10352 pring->postbufq_cnt--;
10353 spin_unlock_irq(&phba->hbalock);
10358 spin_unlock_irq(&phba->hbalock);
10359 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10360 "0402 Cannot find virtual addr for buffer tag on "
10361 "ring %d Data x%lx x%p x%p x%x\n",
10362 pring->ringno, (unsigned long) tag,
10363 slp->next, slp->prev, pring->postbufq_cnt);
10369 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
10370 * @phba: Pointer to HBA context object.
10371 * @pring: Pointer to driver SLI ring object.
10372 * @phys: DMA address of the buffer.
10374 * This function searches the buffer list using the dma_address
10375 * of unsolicited event to find the driver's lpfc_dmabuf object
10376 * corresponding to the dma_address. The function returns the
10377 * lpfc_dmabuf object if a buffer is found else it returns NULL.
10378 * This function is called by the ct and els unsolicited event
10379 * handlers to get the buffer associated with the unsolicited
10382 * This function is called with no lock held.
10384 struct lpfc_dmabuf *
10385 lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10388 struct lpfc_dmabuf *mp, *next_mp;
10389 struct list_head *slp = &pring->postbufq;
10391 /* Search postbufq, from the beginning, looking for a match on phys */
10392 spin_lock_irq(&phba->hbalock);
10393 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
10394 if (mp->phys == phys) {
10395 list_del_init(&mp->list);
10396 pring->postbufq_cnt--;
10397 spin_unlock_irq(&phba->hbalock);
10402 spin_unlock_irq(&phba->hbalock);
10403 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10404 "0410 Cannot find virtual addr for mapped buf on "
10405 "ring %d Data x%llx x%p x%p x%x\n",
10406 pring->ringno, (unsigned long long)phys,
10407 slp->next, slp->prev, pring->postbufq_cnt);
10412 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
10413 * @phba: Pointer to HBA context object.
10414 * @cmdiocb: Pointer to driver command iocb object.
10415 * @rspiocb: Pointer to driver response iocb object.
10417 * This function is the completion handler for the abort iocbs for
10418 * ELS commands. This function is called from the ELS ring event
10419 * handler with no lock held. This function frees memory resources
10420 * associated with the abort iocb.
10423 lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
10424 struct lpfc_iocbq *rspiocb)
10426 IOCB_t *irsp = &rspiocb->iocb;
10427 uint16_t abort_iotag, abort_context;
10428 struct lpfc_iocbq *abort_iocb = NULL;
10430 if (irsp->ulpStatus) {
10433 * Assume that the port already completed and returned, or
10434 * will return the iocb. Just Log the message.
10436 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
10437 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
10439 spin_lock_irq(&phba->hbalock);
10440 if (phba->sli_rev < LPFC_SLI_REV4) {
10441 if (abort_iotag != 0 &&
10442 abort_iotag <= phba->sli.last_iotag)
10444 phba->sli.iocbq_lookup[abort_iotag];
10446 /* For sli4 the abort_tag is the XRI,
10447 * so the abort routine puts the iotag of the iocb
10448 * being aborted in the context field of the abort
10451 abort_iocb = phba->sli.iocbq_lookup[abort_context];
10453 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI,
10454 "0327 Cannot abort els iocb %p "
10455 "with tag %x context %x, abort status %x, "
10457 abort_iocb, abort_iotag, abort_context,
10458 irsp->ulpStatus, irsp->un.ulpWord[4]);
10460 spin_unlock_irq(&phba->hbalock);
10462 lpfc_sli_release_iocbq(phba, cmdiocb);
10467 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
10468 * @phba: Pointer to HBA context object.
10469 * @cmdiocb: Pointer to driver command iocb object.
10470 * @rspiocb: Pointer to driver response iocb object.
10472 * The function is called from SLI ring event handler with no
10473 * lock held. This function is the completion handler for ELS commands
10474 * which are aborted. The function frees memory resources used for
10475 * the aborted ELS commands.
10478 lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
10479 struct lpfc_iocbq *rspiocb)
10481 IOCB_t *irsp = &rspiocb->iocb;
10483 /* ELS cmd tag <ulpIoTag> completes */
10484 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
10485 "0139 Ignoring ELS cmd tag x%x completion Data: "
10487 irsp->ulpIoTag, irsp->ulpStatus,
10488 irsp->un.ulpWord[4], irsp->ulpTimeout);
10489 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
10490 lpfc_ct_free_iocb(phba, cmdiocb);
10492 lpfc_els_free_iocb(phba, cmdiocb);
10497 * lpfc_sli_abort_iotag_issue - Issue abort for a command iocb
10498 * @phba: Pointer to HBA context object.
10499 * @pring: Pointer to driver SLI ring object.
10500 * @cmdiocb: Pointer to driver command iocb object.
10502 * This function issues an abort iocb for the provided command iocb down to
10503 * the port. Other than the case the outstanding command iocb is an abort
10504 * request, this function issues abort out unconditionally. This function is
10505 * called with hbalock held. The function returns 0 when it fails due to
10506 * memory allocation failure or when the command iocb is an abort request.
10509 lpfc_sli_abort_iotag_issue(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10510 struct lpfc_iocbq *cmdiocb)
10512 struct lpfc_vport *vport = cmdiocb->vport;
10513 struct lpfc_iocbq *abtsiocbp;
10514 IOCB_t *icmd = NULL;
10515 IOCB_t *iabt = NULL;
10517 unsigned long iflags;
10519 lockdep_assert_held(&phba->hbalock);
10522 * There are certain command types we don't want to abort. And we
10523 * don't want to abort commands that are already in the process of
10526 icmd = &cmdiocb->iocb;
10527 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
10528 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
10529 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
10532 /* issue ABTS for this IOCB based on iotag */
10533 abtsiocbp = __lpfc_sli_get_iocbq(phba);
10534 if (abtsiocbp == NULL)
10537 /* This signals the response to set the correct status
10538 * before calling the completion handler
10540 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
10542 iabt = &abtsiocbp->iocb;
10543 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
10544 iabt->un.acxri.abortContextTag = icmd->ulpContext;
10545 if (phba->sli_rev == LPFC_SLI_REV4) {
10546 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
10547 iabt->un.acxri.abortContextTag = cmdiocb->iotag;
10550 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
10552 iabt->ulpClass = icmd->ulpClass;
10554 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
10555 abtsiocbp->hba_wqidx = cmdiocb->hba_wqidx;
10556 if (cmdiocb->iocb_flag & LPFC_IO_FCP)
10557 abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
10558 if (cmdiocb->iocb_flag & LPFC_IO_FOF)
10559 abtsiocbp->iocb_flag |= LPFC_IO_FOF;
10561 if (phba->link_state >= LPFC_LINK_UP)
10562 iabt->ulpCommand = CMD_ABORT_XRI_CN;
10564 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
10566 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
10567 abtsiocbp->vport = vport;
10569 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
10570 "0339 Abort xri x%x, original iotag x%x, "
10571 "abort cmd iotag x%x\n",
10572 iabt->un.acxri.abortIoTag,
10573 iabt->un.acxri.abortContextTag,
10576 if (phba->sli_rev == LPFC_SLI_REV4) {
10577 pring = lpfc_sli4_calc_ring(phba, abtsiocbp);
10578 if (unlikely(pring == NULL))
10580 /* Note: both hbalock and ring_lock need to be set here */
10581 spin_lock_irqsave(&pring->ring_lock, iflags);
10582 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
10584 spin_unlock_irqrestore(&pring->ring_lock, iflags);
10586 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
10591 __lpfc_sli_release_iocbq(phba, abtsiocbp);
10594 * Caller to this routine should check for IOCB_ERROR
10595 * and handle it properly. This routine no longer removes
10596 * iocb off txcmplq and call compl in case of IOCB_ERROR.
10602 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
10603 * @phba: Pointer to HBA context object.
10604 * @pring: Pointer to driver SLI ring object.
10605 * @cmdiocb: Pointer to driver command iocb object.
10607 * This function issues an abort iocb for the provided command iocb. In case
10608 * of unloading, the abort iocb will not be issued to commands on the ELS
10609 * ring. Instead, the callback function shall be changed to those commands
10610 * so that nothing happens when them finishes. This function is called with
10611 * hbalock held. The function returns 0 when the command iocb is an abort
10615 lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10616 struct lpfc_iocbq *cmdiocb)
10618 struct lpfc_vport *vport = cmdiocb->vport;
10619 int retval = IOCB_ERROR;
10620 IOCB_t *icmd = NULL;
10622 lockdep_assert_held(&phba->hbalock);
10625 * There are certain command types we don't want to abort. And we
10626 * don't want to abort commands that are already in the process of
10629 icmd = &cmdiocb->iocb;
10630 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
10631 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
10632 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
10636 * If we're unloading, don't abort iocb on the ELS ring, but change
10637 * the callback so that nothing happens when it finishes.
10639 if ((vport->load_flag & FC_UNLOADING) &&
10640 (pring->ringno == LPFC_ELS_RING)) {
10641 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
10642 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
10644 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
10645 goto abort_iotag_exit;
10648 /* Now, we try to issue the abort to the cmdiocb out */
10649 retval = lpfc_sli_abort_iotag_issue(phba, pring, cmdiocb);
10653 * Caller to this routine should check for IOCB_ERROR
10654 * and handle it properly. This routine no longer removes
10655 * iocb off txcmplq and call compl in case of IOCB_ERROR.
10661 * lpfc_sli4_abort_nvme_io - Issue abort for a command iocb
10662 * @phba: Pointer to HBA context object.
10663 * @pring: Pointer to driver SLI ring object.
10664 * @cmdiocb: Pointer to driver command iocb object.
10666 * This function issues an abort iocb for the provided command iocb down to
10667 * the port. Other than the case the outstanding command iocb is an abort
10668 * request, this function issues abort out unconditionally. This function is
10669 * called with hbalock held. The function returns 0 when it fails due to
10670 * memory allocation failure or when the command iocb is an abort request.
10673 lpfc_sli4_abort_nvme_io(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10674 struct lpfc_iocbq *cmdiocb)
10676 struct lpfc_vport *vport = cmdiocb->vport;
10677 struct lpfc_iocbq *abtsiocbp;
10678 union lpfc_wqe *abts_wqe;
10682 * There are certain command types we don't want to abort. And we
10683 * don't want to abort commands that are already in the process of
10686 if (cmdiocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
10687 cmdiocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN ||
10688 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
10691 /* issue ABTS for this io based on iotag */
10692 abtsiocbp = __lpfc_sli_get_iocbq(phba);
10693 if (abtsiocbp == NULL)
10696 /* This signals the response to set the correct status
10697 * before calling the completion handler
10699 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
10701 /* Complete prepping the abort wqe and issue to the FW. */
10702 abts_wqe = &abtsiocbp->wqe;
10703 bf_set(abort_cmd_ia, &abts_wqe->abort_cmd, 0);
10704 bf_set(abort_cmd_criteria, &abts_wqe->abort_cmd, T_XRI_TAG);
10706 /* Explicitly set reserved fields to zero.*/
10707 abts_wqe->abort_cmd.rsrvd4 = 0;
10708 abts_wqe->abort_cmd.rsrvd5 = 0;
10710 /* WQE Common - word 6. Context is XRI tag. Set 0. */
10711 bf_set(wqe_xri_tag, &abts_wqe->abort_cmd.wqe_com, 0);
10712 bf_set(wqe_ctxt_tag, &abts_wqe->abort_cmd.wqe_com, 0);
10715 bf_set(wqe_ct, &abts_wqe->abort_cmd.wqe_com, 0);
10716 bf_set(wqe_cmnd, &abts_wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
10717 bf_set(wqe_class, &abts_wqe->abort_cmd.wqe_com,
10718 cmdiocb->iocb.ulpClass);
10720 /* word 8 - tell the FW to abort the IO associated with this
10721 * outstanding exchange ID.
10723 abts_wqe->abort_cmd.wqe_com.abort_tag = cmdiocb->sli4_xritag;
10725 /* word 9 - this is the iotag for the abts_wqe completion. */
10726 bf_set(wqe_reqtag, &abts_wqe->abort_cmd.wqe_com,
10730 bf_set(wqe_wqid, &abts_wqe->abort_cmd.wqe_com, cmdiocb->hba_wqidx);
10731 bf_set(wqe_qosd, &abts_wqe->abort_cmd.wqe_com, 1);
10732 bf_set(wqe_lenloc, &abts_wqe->abort_cmd.wqe_com, LPFC_WQE_LENLOC_NONE);
10735 bf_set(wqe_cmd_type, &abts_wqe->abort_cmd.wqe_com, OTHER_COMMAND);
10736 bf_set(wqe_wqec, &abts_wqe->abort_cmd.wqe_com, 1);
10737 bf_set(wqe_cqid, &abts_wqe->abort_cmd.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
10739 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
10740 abtsiocbp->iocb_flag |= LPFC_IO_NVME;
10741 abtsiocbp->vport = vport;
10742 abtsiocbp->wqe_cmpl = lpfc_nvme_abort_fcreq_cmpl;
10743 retval = lpfc_sli4_issue_wqe(phba, LPFC_FCP_RING, abtsiocbp);
10744 if (retval == IOCB_ERROR) {
10745 lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME,
10746 "6147 Failed abts issue_wqe with status x%x "
10748 retval, cmdiocb->sli4_xritag);
10749 lpfc_sli_release_iocbq(phba, abtsiocbp);
10753 lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME,
10754 "6148 Drv Abort NVME Request Issued for "
10755 "ox_id x%x on reqtag x%x\n",
10756 cmdiocb->sli4_xritag,
10763 * lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
10764 * @phba: pointer to lpfc HBA data structure.
10766 * This routine will abort all pending and outstanding iocbs to an HBA.
10769 lpfc_sli_hba_iocb_abort(struct lpfc_hba *phba)
10771 struct lpfc_sli *psli = &phba->sli;
10772 struct lpfc_sli_ring *pring;
10773 struct lpfc_queue *qp = NULL;
10776 if (phba->sli_rev != LPFC_SLI_REV4) {
10777 for (i = 0; i < psli->num_rings; i++) {
10778 pring = &psli->sli3_ring[i];
10779 lpfc_sli_abort_iocb_ring(phba, pring);
10783 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
10787 lpfc_sli_abort_iocb_ring(phba, pring);
10792 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
10793 * @iocbq: Pointer to driver iocb object.
10794 * @vport: Pointer to driver virtual port object.
10795 * @tgt_id: SCSI ID of the target.
10796 * @lun_id: LUN ID of the scsi device.
10797 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
10799 * This function acts as an iocb filter for functions which abort or count
10800 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
10801 * 0 if the filtering criteria is met for the given iocb and will return
10802 * 1 if the filtering criteria is not met.
10803 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
10804 * given iocb is for the SCSI device specified by vport, tgt_id and
10805 * lun_id parameter.
10806 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
10807 * given iocb is for the SCSI target specified by vport and tgt_id
10809 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
10810 * given iocb is for the SCSI host associated with the given vport.
10811 * This function is called with no locks held.
10814 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
10815 uint16_t tgt_id, uint64_t lun_id,
10816 lpfc_ctx_cmd ctx_cmd)
10818 struct lpfc_scsi_buf *lpfc_cmd;
10821 if (!(iocbq->iocb_flag & LPFC_IO_FCP))
10824 if (iocbq->vport != vport)
10827 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
10829 if (lpfc_cmd->pCmd == NULL)
10834 if ((lpfc_cmd->rdata->pnode) &&
10835 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
10836 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
10840 if ((lpfc_cmd->rdata->pnode) &&
10841 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
10844 case LPFC_CTX_HOST:
10848 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
10849 __func__, ctx_cmd);
10857 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
10858 * @vport: Pointer to virtual port.
10859 * @tgt_id: SCSI ID of the target.
10860 * @lun_id: LUN ID of the scsi device.
10861 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
10863 * This function returns number of FCP commands pending for the vport.
10864 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
10865 * commands pending on the vport associated with SCSI device specified
10866 * by tgt_id and lun_id parameters.
10867 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
10868 * commands pending on the vport associated with SCSI target specified
10869 * by tgt_id parameter.
10870 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
10871 * commands pending on the vport.
10872 * This function returns the number of iocbs which satisfy the filter.
10873 * This function is called without any lock held.
10876 lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
10877 lpfc_ctx_cmd ctx_cmd)
10879 struct lpfc_hba *phba = vport->phba;
10880 struct lpfc_iocbq *iocbq;
10883 spin_lock_irq(&phba->hbalock);
10884 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
10885 iocbq = phba->sli.iocbq_lookup[i];
10887 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
10891 spin_unlock_irq(&phba->hbalock);
10897 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
10898 * @phba: Pointer to HBA context object
10899 * @cmdiocb: Pointer to command iocb object.
10900 * @rspiocb: Pointer to response iocb object.
10902 * This function is called when an aborted FCP iocb completes. This
10903 * function is called by the ring event handler with no lock held.
10904 * This function frees the iocb.
10907 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
10908 struct lpfc_iocbq *rspiocb)
10910 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10911 "3096 ABORT_XRI_CN completing on rpi x%x "
10912 "original iotag x%x, abort cmd iotag x%x "
10913 "status 0x%x, reason 0x%x\n",
10914 cmdiocb->iocb.un.acxri.abortContextTag,
10915 cmdiocb->iocb.un.acxri.abortIoTag,
10916 cmdiocb->iotag, rspiocb->iocb.ulpStatus,
10917 rspiocb->iocb.un.ulpWord[4]);
10918 lpfc_sli_release_iocbq(phba, cmdiocb);
10923 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
10924 * @vport: Pointer to virtual port.
10925 * @pring: Pointer to driver SLI ring object.
10926 * @tgt_id: SCSI ID of the target.
10927 * @lun_id: LUN ID of the scsi device.
10928 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
10930 * This function sends an abort command for every SCSI command
10931 * associated with the given virtual port pending on the ring
10932 * filtered by lpfc_sli_validate_fcp_iocb function.
10933 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
10934 * FCP iocbs associated with lun specified by tgt_id and lun_id
10936 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
10937 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
10938 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
10939 * FCP iocbs associated with virtual port.
10940 * This function returns number of iocbs it failed to abort.
10941 * This function is called with no locks held.
10944 lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
10945 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
10947 struct lpfc_hba *phba = vport->phba;
10948 struct lpfc_iocbq *iocbq;
10949 struct lpfc_iocbq *abtsiocb;
10950 struct lpfc_sli_ring *pring_s4;
10951 IOCB_t *cmd = NULL;
10952 int errcnt = 0, ret_val = 0;
10955 for (i = 1; i <= phba->sli.last_iotag; i++) {
10956 iocbq = phba->sli.iocbq_lookup[i];
10958 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
10963 * If the iocbq is already being aborted, don't take a second
10964 * action, but do count it.
10966 if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
10969 /* issue ABTS for this IOCB based on iotag */
10970 abtsiocb = lpfc_sli_get_iocbq(phba);
10971 if (abtsiocb == NULL) {
10976 /* indicate the IO is being aborted by the driver. */
10977 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
10979 cmd = &iocbq->iocb;
10980 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
10981 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
10982 if (phba->sli_rev == LPFC_SLI_REV4)
10983 abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
10985 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
10986 abtsiocb->iocb.ulpLe = 1;
10987 abtsiocb->iocb.ulpClass = cmd->ulpClass;
10988 abtsiocb->vport = vport;
10990 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
10991 abtsiocb->hba_wqidx = iocbq->hba_wqidx;
10992 if (iocbq->iocb_flag & LPFC_IO_FCP)
10993 abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
10994 if (iocbq->iocb_flag & LPFC_IO_FOF)
10995 abtsiocb->iocb_flag |= LPFC_IO_FOF;
10997 if (lpfc_is_link_up(phba))
10998 abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
11000 abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
11002 /* Setup callback routine and issue the command. */
11003 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
11004 if (phba->sli_rev == LPFC_SLI_REV4) {
11005 pring_s4 = lpfc_sli4_calc_ring(phba, iocbq);
11008 ret_val = lpfc_sli_issue_iocb(phba, pring_s4->ringno,
11011 ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
11013 if (ret_val == IOCB_ERROR) {
11014 lpfc_sli_release_iocbq(phba, abtsiocb);
11024 * lpfc_sli_abort_taskmgmt - issue abort for all commands on a host/target/LUN
11025 * @vport: Pointer to virtual port.
11026 * @pring: Pointer to driver SLI ring object.
11027 * @tgt_id: SCSI ID of the target.
11028 * @lun_id: LUN ID of the scsi device.
11029 * @taskmgmt_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
11031 * This function sends an abort command for every SCSI command
11032 * associated with the given virtual port pending on the ring
11033 * filtered by lpfc_sli_validate_fcp_iocb function.
11034 * When taskmgmt_cmd == LPFC_CTX_LUN, the function sends abort only to the
11035 * FCP iocbs associated with lun specified by tgt_id and lun_id
11037 * When taskmgmt_cmd == LPFC_CTX_TGT, the function sends abort only to the
11038 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
11039 * When taskmgmt_cmd == LPFC_CTX_HOST, the function sends abort to all
11040 * FCP iocbs associated with virtual port.
11041 * This function returns number of iocbs it aborted .
11042 * This function is called with no locks held right after a taskmgmt
11046 lpfc_sli_abort_taskmgmt(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
11047 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd cmd)
11049 struct lpfc_hba *phba = vport->phba;
11050 struct lpfc_scsi_buf *lpfc_cmd;
11051 struct lpfc_iocbq *abtsiocbq;
11052 struct lpfc_nodelist *ndlp;
11053 struct lpfc_iocbq *iocbq;
11055 int sum, i, ret_val;
11056 unsigned long iflags;
11057 struct lpfc_sli_ring *pring_s4;
11059 spin_lock_irq(&phba->hbalock);
11061 /* all I/Os are in process of being flushed */
11062 if (phba->hba_flag & HBA_FCP_IOQ_FLUSH) {
11063 spin_unlock_irq(&phba->hbalock);
11068 for (i = 1; i <= phba->sli.last_iotag; i++) {
11069 iocbq = phba->sli.iocbq_lookup[i];
11071 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
11076 * If the iocbq is already being aborted, don't take a second
11077 * action, but do count it.
11079 if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
11082 /* issue ABTS for this IOCB based on iotag */
11083 abtsiocbq = __lpfc_sli_get_iocbq(phba);
11084 if (abtsiocbq == NULL)
11087 icmd = &iocbq->iocb;
11088 abtsiocbq->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
11089 abtsiocbq->iocb.un.acxri.abortContextTag = icmd->ulpContext;
11090 if (phba->sli_rev == LPFC_SLI_REV4)
11091 abtsiocbq->iocb.un.acxri.abortIoTag =
11092 iocbq->sli4_xritag;
11094 abtsiocbq->iocb.un.acxri.abortIoTag = icmd->ulpIoTag;
11095 abtsiocbq->iocb.ulpLe = 1;
11096 abtsiocbq->iocb.ulpClass = icmd->ulpClass;
11097 abtsiocbq->vport = vport;
11099 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
11100 abtsiocbq->hba_wqidx = iocbq->hba_wqidx;
11101 if (iocbq->iocb_flag & LPFC_IO_FCP)
11102 abtsiocbq->iocb_flag |= LPFC_USE_FCPWQIDX;
11103 if (iocbq->iocb_flag & LPFC_IO_FOF)
11104 abtsiocbq->iocb_flag |= LPFC_IO_FOF;
11106 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
11107 ndlp = lpfc_cmd->rdata->pnode;
11109 if (lpfc_is_link_up(phba) &&
11110 (ndlp && ndlp->nlp_state == NLP_STE_MAPPED_NODE))
11111 abtsiocbq->iocb.ulpCommand = CMD_ABORT_XRI_CN;
11113 abtsiocbq->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
11115 /* Setup callback routine and issue the command. */
11116 abtsiocbq->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
11119 * Indicate the IO is being aborted by the driver and set
11120 * the caller's flag into the aborted IO.
11122 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
11124 if (phba->sli_rev == LPFC_SLI_REV4) {
11125 pring_s4 = lpfc_sli4_calc_ring(phba, iocbq);
11126 if (pring_s4 == NULL)
11128 /* Note: both hbalock and ring_lock must be set here */
11129 spin_lock_irqsave(&pring_s4->ring_lock, iflags);
11130 ret_val = __lpfc_sli_issue_iocb(phba, pring_s4->ringno,
11132 spin_unlock_irqrestore(&pring_s4->ring_lock, iflags);
11134 ret_val = __lpfc_sli_issue_iocb(phba, pring->ringno,
11139 if (ret_val == IOCB_ERROR)
11140 __lpfc_sli_release_iocbq(phba, abtsiocbq);
11144 spin_unlock_irq(&phba->hbalock);
11149 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
11150 * @phba: Pointer to HBA context object.
11151 * @cmdiocbq: Pointer to command iocb.
11152 * @rspiocbq: Pointer to response iocb.
11154 * This function is the completion handler for iocbs issued using
11155 * lpfc_sli_issue_iocb_wait function. This function is called by the
11156 * ring event handler function without any lock held. This function
11157 * can be called from both worker thread context and interrupt
11158 * context. This function also can be called from other thread which
11159 * cleans up the SLI layer objects.
11160 * This function copy the contents of the response iocb to the
11161 * response iocb memory object provided by the caller of
11162 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
11163 * sleeps for the iocb completion.
11166 lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
11167 struct lpfc_iocbq *cmdiocbq,
11168 struct lpfc_iocbq *rspiocbq)
11170 wait_queue_head_t *pdone_q;
11171 unsigned long iflags;
11172 struct lpfc_scsi_buf *lpfc_cmd;
11174 spin_lock_irqsave(&phba->hbalock, iflags);
11175 if (cmdiocbq->iocb_flag & LPFC_IO_WAKE_TMO) {
11178 * A time out has occurred for the iocb. If a time out
11179 * completion handler has been supplied, call it. Otherwise,
11180 * just free the iocbq.
11183 spin_unlock_irqrestore(&phba->hbalock, iflags);
11184 cmdiocbq->iocb_cmpl = cmdiocbq->wait_iocb_cmpl;
11185 cmdiocbq->wait_iocb_cmpl = NULL;
11186 if (cmdiocbq->iocb_cmpl)
11187 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, NULL);
11189 lpfc_sli_release_iocbq(phba, cmdiocbq);
11193 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
11194 if (cmdiocbq->context2 && rspiocbq)
11195 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
11196 &rspiocbq->iocb, sizeof(IOCB_t));
11198 /* Set the exchange busy flag for task management commands */
11199 if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) &&
11200 !(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) {
11201 lpfc_cmd = container_of(cmdiocbq, struct lpfc_scsi_buf,
11203 lpfc_cmd->exch_busy = rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY;
11206 pdone_q = cmdiocbq->context_un.wait_queue;
11209 spin_unlock_irqrestore(&phba->hbalock, iflags);
11214 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
11215 * @phba: Pointer to HBA context object..
11216 * @piocbq: Pointer to command iocb.
11217 * @flag: Flag to test.
11219 * This routine grabs the hbalock and then test the iocb_flag to
11220 * see if the passed in flag is set.
11222 * 1 if flag is set.
11223 * 0 if flag is not set.
11226 lpfc_chk_iocb_flg(struct lpfc_hba *phba,
11227 struct lpfc_iocbq *piocbq, uint32_t flag)
11229 unsigned long iflags;
11232 spin_lock_irqsave(&phba->hbalock, iflags);
11233 ret = piocbq->iocb_flag & flag;
11234 spin_unlock_irqrestore(&phba->hbalock, iflags);
11240 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
11241 * @phba: Pointer to HBA context object..
11242 * @pring: Pointer to sli ring.
11243 * @piocb: Pointer to command iocb.
11244 * @prspiocbq: Pointer to response iocb.
11245 * @timeout: Timeout in number of seconds.
11247 * This function issues the iocb to firmware and waits for the
11248 * iocb to complete. The iocb_cmpl field of the shall be used
11249 * to handle iocbs which time out. If the field is NULL, the
11250 * function shall free the iocbq structure. If more clean up is
11251 * needed, the caller is expected to provide a completion function
11252 * that will provide the needed clean up. If the iocb command is
11253 * not completed within timeout seconds, the function will either
11254 * free the iocbq structure (if iocb_cmpl == NULL) or execute the
11255 * completion function set in the iocb_cmpl field and then return
11256 * a status of IOCB_TIMEDOUT. The caller should not free the iocb
11257 * resources if this function returns IOCB_TIMEDOUT.
11258 * The function waits for the iocb completion using an
11259 * non-interruptible wait.
11260 * This function will sleep while waiting for iocb completion.
11261 * So, this function should not be called from any context which
11262 * does not allow sleeping. Due to the same reason, this function
11263 * cannot be called with interrupt disabled.
11264 * This function assumes that the iocb completions occur while
11265 * this function sleep. So, this function cannot be called from
11266 * the thread which process iocb completion for this ring.
11267 * This function clears the iocb_flag of the iocb object before
11268 * issuing the iocb and the iocb completion handler sets this
11269 * flag and wakes this thread when the iocb completes.
11270 * The contents of the response iocb will be copied to prspiocbq
11271 * by the completion handler when the command completes.
11272 * This function returns IOCB_SUCCESS when success.
11273 * This function is called with no lock held.
11276 lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
11277 uint32_t ring_number,
11278 struct lpfc_iocbq *piocb,
11279 struct lpfc_iocbq *prspiocbq,
11282 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
11283 long timeleft, timeout_req = 0;
11284 int retval = IOCB_SUCCESS;
11286 struct lpfc_iocbq *iocb;
11288 int txcmplq_cnt = 0;
11289 struct lpfc_sli_ring *pring;
11290 unsigned long iflags;
11291 bool iocb_completed = true;
11293 if (phba->sli_rev >= LPFC_SLI_REV4)
11294 pring = lpfc_sli4_calc_ring(phba, piocb);
11296 pring = &phba->sli.sli3_ring[ring_number];
11298 * If the caller has provided a response iocbq buffer, then context2
11299 * is NULL or its an error.
11302 if (piocb->context2)
11304 piocb->context2 = prspiocbq;
11307 piocb->wait_iocb_cmpl = piocb->iocb_cmpl;
11308 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
11309 piocb->context_un.wait_queue = &done_q;
11310 piocb->iocb_flag &= ~(LPFC_IO_WAKE | LPFC_IO_WAKE_TMO);
11312 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
11313 if (lpfc_readl(phba->HCregaddr, &creg_val))
11315 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
11316 writel(creg_val, phba->HCregaddr);
11317 readl(phba->HCregaddr); /* flush */
11320 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb,
11321 SLI_IOCB_RET_IOCB);
11322 if (retval == IOCB_SUCCESS) {
11323 timeout_req = msecs_to_jiffies(timeout * 1000);
11324 timeleft = wait_event_timeout(done_q,
11325 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
11327 spin_lock_irqsave(&phba->hbalock, iflags);
11328 if (!(piocb->iocb_flag & LPFC_IO_WAKE)) {
11331 * IOCB timed out. Inform the wake iocb wait
11332 * completion function and set local status
11335 iocb_completed = false;
11336 piocb->iocb_flag |= LPFC_IO_WAKE_TMO;
11338 spin_unlock_irqrestore(&phba->hbalock, iflags);
11339 if (iocb_completed) {
11340 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11341 "0331 IOCB wake signaled\n");
11342 /* Note: we are not indicating if the IOCB has a success
11343 * status or not - that's for the caller to check.
11344 * IOCB_SUCCESS means just that the command was sent and
11345 * completed. Not that it completed successfully.
11347 } else if (timeleft == 0) {
11348 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11349 "0338 IOCB wait timeout error - no "
11350 "wake response Data x%x\n", timeout);
11351 retval = IOCB_TIMEDOUT;
11353 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11354 "0330 IOCB wake NOT set, "
11356 timeout, (timeleft / jiffies));
11357 retval = IOCB_TIMEDOUT;
11359 } else if (retval == IOCB_BUSY) {
11360 if (phba->cfg_log_verbose & LOG_SLI) {
11361 list_for_each_entry(iocb, &pring->txq, list) {
11364 list_for_each_entry(iocb, &pring->txcmplq, list) {
11367 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11368 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
11369 phba->iocb_cnt, txq_cnt, txcmplq_cnt);
11373 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11374 "0332 IOCB wait issue failed, Data x%x\n",
11376 retval = IOCB_ERROR;
11379 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
11380 if (lpfc_readl(phba->HCregaddr, &creg_val))
11382 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
11383 writel(creg_val, phba->HCregaddr);
11384 readl(phba->HCregaddr); /* flush */
11388 piocb->context2 = NULL;
11390 piocb->context_un.wait_queue = NULL;
11391 piocb->iocb_cmpl = NULL;
11396 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
11397 * @phba: Pointer to HBA context object.
11398 * @pmboxq: Pointer to driver mailbox object.
11399 * @timeout: Timeout in number of seconds.
11401 * This function issues the mailbox to firmware and waits for the
11402 * mailbox command to complete. If the mailbox command is not
11403 * completed within timeout seconds, it returns MBX_TIMEOUT.
11404 * The function waits for the mailbox completion using an
11405 * interruptible wait. If the thread is woken up due to a
11406 * signal, MBX_TIMEOUT error is returned to the caller. Caller
11407 * should not free the mailbox resources, if this function returns
11409 * This function will sleep while waiting for mailbox completion.
11410 * So, this function should not be called from any context which
11411 * does not allow sleeping. Due to the same reason, this function
11412 * cannot be called with interrupt disabled.
11413 * This function assumes that the mailbox completion occurs while
11414 * this function sleep. So, this function cannot be called from
11415 * the worker thread which processes mailbox completion.
11416 * This function is called in the context of HBA management
11418 * This function returns MBX_SUCCESS when successful.
11419 * This function is called with no lock held.
11422 lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
11425 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
11426 MAILBOX_t *mb = NULL;
11428 unsigned long flag;
11430 /* The caller might set context1 for extended buffer */
11431 if (pmboxq->context1)
11432 mb = (MAILBOX_t *)pmboxq->context1;
11434 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
11435 /* setup wake call as IOCB callback */
11436 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
11437 /* setup context field to pass wait_queue pointer to wake function */
11438 pmboxq->context1 = &done_q;
11440 /* now issue the command */
11441 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
11442 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
11443 wait_event_interruptible_timeout(done_q,
11444 pmboxq->mbox_flag & LPFC_MBX_WAKE,
11445 msecs_to_jiffies(timeout * 1000));
11447 spin_lock_irqsave(&phba->hbalock, flag);
11448 /* restore the possible extended buffer for free resource */
11449 pmboxq->context1 = (uint8_t *)mb;
11451 * if LPFC_MBX_WAKE flag is set the mailbox is completed
11452 * else do not free the resources.
11454 if (pmboxq->mbox_flag & LPFC_MBX_WAKE) {
11455 retval = MBX_SUCCESS;
11457 retval = MBX_TIMEOUT;
11458 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
11460 spin_unlock_irqrestore(&phba->hbalock, flag);
11462 /* restore the possible extended buffer for free resource */
11463 pmboxq->context1 = (uint8_t *)mb;
11470 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
11471 * @phba: Pointer to HBA context.
11473 * This function is called to shutdown the driver's mailbox sub-system.
11474 * It first marks the mailbox sub-system is in a block state to prevent
11475 * the asynchronous mailbox command from issued off the pending mailbox
11476 * command queue. If the mailbox command sub-system shutdown is due to
11477 * HBA error conditions such as EEH or ERATT, this routine shall invoke
11478 * the mailbox sub-system flush routine to forcefully bring down the
11479 * mailbox sub-system. Otherwise, if it is due to normal condition (such
11480 * as with offline or HBA function reset), this routine will wait for the
11481 * outstanding mailbox command to complete before invoking the mailbox
11482 * sub-system flush routine to gracefully bring down mailbox sub-system.
11485 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba, int mbx_action)
11487 struct lpfc_sli *psli = &phba->sli;
11488 unsigned long timeout;
11490 if (mbx_action == LPFC_MBX_NO_WAIT) {
11491 /* delay 100ms for port state */
11493 lpfc_sli_mbox_sys_flush(phba);
11496 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
11498 spin_lock_irq(&phba->hbalock);
11499 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
11501 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
11502 /* Determine how long we might wait for the active mailbox
11503 * command to be gracefully completed by firmware.
11505 if (phba->sli.mbox_active)
11506 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
11507 phba->sli.mbox_active) *
11509 spin_unlock_irq(&phba->hbalock);
11511 while (phba->sli.mbox_active) {
11512 /* Check active mailbox complete status every 2ms */
11514 if (time_after(jiffies, timeout))
11515 /* Timeout, let the mailbox flush routine to
11516 * forcefully release active mailbox command
11521 spin_unlock_irq(&phba->hbalock);
11523 lpfc_sli_mbox_sys_flush(phba);
11527 * lpfc_sli_eratt_read - read sli-3 error attention events
11528 * @phba: Pointer to HBA context.
11530 * This function is called to read the SLI3 device error attention registers
11531 * for possible error attention events. The caller must hold the hostlock
11532 * with spin_lock_irq().
11534 * This function returns 1 when there is Error Attention in the Host Attention
11535 * Register and returns 0 otherwise.
11538 lpfc_sli_eratt_read(struct lpfc_hba *phba)
11542 /* Read chip Host Attention (HA) register */
11543 if (lpfc_readl(phba->HAregaddr, &ha_copy))
11546 if (ha_copy & HA_ERATT) {
11547 /* Read host status register to retrieve error event */
11548 if (lpfc_sli_read_hs(phba))
11551 /* Check if there is a deferred error condition is active */
11552 if ((HS_FFER1 & phba->work_hs) &&
11553 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
11554 HS_FFER6 | HS_FFER7 | HS_FFER8) & phba->work_hs)) {
11555 phba->hba_flag |= DEFER_ERATT;
11556 /* Clear all interrupt enable conditions */
11557 writel(0, phba->HCregaddr);
11558 readl(phba->HCregaddr);
11561 /* Set the driver HA work bitmap */
11562 phba->work_ha |= HA_ERATT;
11563 /* Indicate polling handles this ERATT */
11564 phba->hba_flag |= HBA_ERATT_HANDLED;
11570 /* Set the driver HS work bitmap */
11571 phba->work_hs |= UNPLUG_ERR;
11572 /* Set the driver HA work bitmap */
11573 phba->work_ha |= HA_ERATT;
11574 /* Indicate polling handles this ERATT */
11575 phba->hba_flag |= HBA_ERATT_HANDLED;
11580 * lpfc_sli4_eratt_read - read sli-4 error attention events
11581 * @phba: Pointer to HBA context.
11583 * This function is called to read the SLI4 device error attention registers
11584 * for possible error attention events. The caller must hold the hostlock
11585 * with spin_lock_irq().
11587 * This function returns 1 when there is Error Attention in the Host Attention
11588 * Register and returns 0 otherwise.
11591 lpfc_sli4_eratt_read(struct lpfc_hba *phba)
11593 uint32_t uerr_sta_hi, uerr_sta_lo;
11594 uint32_t if_type, portsmphr;
11595 struct lpfc_register portstat_reg;
11598 * For now, use the SLI4 device internal unrecoverable error
11599 * registers for error attention. This can be changed later.
11601 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
11603 case LPFC_SLI_INTF_IF_TYPE_0:
11604 if (lpfc_readl(phba->sli4_hba.u.if_type0.UERRLOregaddr,
11606 lpfc_readl(phba->sli4_hba.u.if_type0.UERRHIregaddr,
11608 phba->work_hs |= UNPLUG_ERR;
11609 phba->work_ha |= HA_ERATT;
11610 phba->hba_flag |= HBA_ERATT_HANDLED;
11613 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
11614 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
11615 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11616 "1423 HBA Unrecoverable error: "
11617 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
11618 "ue_mask_lo_reg=0x%x, "
11619 "ue_mask_hi_reg=0x%x\n",
11620 uerr_sta_lo, uerr_sta_hi,
11621 phba->sli4_hba.ue_mask_lo,
11622 phba->sli4_hba.ue_mask_hi);
11623 phba->work_status[0] = uerr_sta_lo;
11624 phba->work_status[1] = uerr_sta_hi;
11625 phba->work_ha |= HA_ERATT;
11626 phba->hba_flag |= HBA_ERATT_HANDLED;
11630 case LPFC_SLI_INTF_IF_TYPE_2:
11631 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
11632 &portstat_reg.word0) ||
11633 lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
11635 phba->work_hs |= UNPLUG_ERR;
11636 phba->work_ha |= HA_ERATT;
11637 phba->hba_flag |= HBA_ERATT_HANDLED;
11640 if (bf_get(lpfc_sliport_status_err, &portstat_reg)) {
11641 phba->work_status[0] =
11642 readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
11643 phba->work_status[1] =
11644 readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
11645 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11646 "2885 Port Status Event: "
11647 "port status reg 0x%x, "
11648 "port smphr reg 0x%x, "
11649 "error 1=0x%x, error 2=0x%x\n",
11650 portstat_reg.word0,
11652 phba->work_status[0],
11653 phba->work_status[1]);
11654 phba->work_ha |= HA_ERATT;
11655 phba->hba_flag |= HBA_ERATT_HANDLED;
11659 case LPFC_SLI_INTF_IF_TYPE_1:
11661 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11662 "2886 HBA Error Attention on unsupported "
11663 "if type %d.", if_type);
11671 * lpfc_sli_check_eratt - check error attention events
11672 * @phba: Pointer to HBA context.
11674 * This function is called from timer soft interrupt context to check HBA's
11675 * error attention register bit for error attention events.
11677 * This function returns 1 when there is Error Attention in the Host Attention
11678 * Register and returns 0 otherwise.
11681 lpfc_sli_check_eratt(struct lpfc_hba *phba)
11685 /* If somebody is waiting to handle an eratt, don't process it
11686 * here. The brdkill function will do this.
11688 if (phba->link_flag & LS_IGNORE_ERATT)
11691 /* Check if interrupt handler handles this ERATT */
11692 spin_lock_irq(&phba->hbalock);
11693 if (phba->hba_flag & HBA_ERATT_HANDLED) {
11694 /* Interrupt handler has handled ERATT */
11695 spin_unlock_irq(&phba->hbalock);
11700 * If there is deferred error attention, do not check for error
11703 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
11704 spin_unlock_irq(&phba->hbalock);
11708 /* If PCI channel is offline, don't process it */
11709 if (unlikely(pci_channel_offline(phba->pcidev))) {
11710 spin_unlock_irq(&phba->hbalock);
11714 switch (phba->sli_rev) {
11715 case LPFC_SLI_REV2:
11716 case LPFC_SLI_REV3:
11717 /* Read chip Host Attention (HA) register */
11718 ha_copy = lpfc_sli_eratt_read(phba);
11720 case LPFC_SLI_REV4:
11721 /* Read device Uncoverable Error (UERR) registers */
11722 ha_copy = lpfc_sli4_eratt_read(phba);
11725 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11726 "0299 Invalid SLI revision (%d)\n",
11731 spin_unlock_irq(&phba->hbalock);
11737 * lpfc_intr_state_check - Check device state for interrupt handling
11738 * @phba: Pointer to HBA context.
11740 * This inline routine checks whether a device or its PCI slot is in a state
11741 * that the interrupt should be handled.
11743 * This function returns 0 if the device or the PCI slot is in a state that
11744 * interrupt should be handled, otherwise -EIO.
11747 lpfc_intr_state_check(struct lpfc_hba *phba)
11749 /* If the pci channel is offline, ignore all the interrupts */
11750 if (unlikely(pci_channel_offline(phba->pcidev)))
11753 /* Update device level interrupt statistics */
11754 phba->sli.slistat.sli_intr++;
11756 /* Ignore all interrupts during initialization. */
11757 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
11764 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
11765 * @irq: Interrupt number.
11766 * @dev_id: The device context pointer.
11768 * This function is directly called from the PCI layer as an interrupt
11769 * service routine when device with SLI-3 interface spec is enabled with
11770 * MSI-X multi-message interrupt mode and there are slow-path events in
11771 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
11772 * interrupt mode, this function is called as part of the device-level
11773 * interrupt handler. When the PCI slot is in error recovery or the HBA
11774 * is undergoing initialization, the interrupt handler will not process
11775 * the interrupt. The link attention and ELS ring attention events are
11776 * handled by the worker thread. The interrupt handler signals the worker
11777 * thread and returns for these events. This function is called without
11778 * any lock held. It gets the hbalock to access and update SLI data
11781 * This function returns IRQ_HANDLED when interrupt is handled else it
11782 * returns IRQ_NONE.
11785 lpfc_sli_sp_intr_handler(int irq, void *dev_id)
11787 struct lpfc_hba *phba;
11788 uint32_t ha_copy, hc_copy;
11789 uint32_t work_ha_copy;
11790 unsigned long status;
11791 unsigned long iflag;
11794 MAILBOX_t *mbox, *pmbox;
11795 struct lpfc_vport *vport;
11796 struct lpfc_nodelist *ndlp;
11797 struct lpfc_dmabuf *mp;
11802 * Get the driver's phba structure from the dev_id and
11803 * assume the HBA is not interrupting.
11805 phba = (struct lpfc_hba *)dev_id;
11807 if (unlikely(!phba))
11811 * Stuff needs to be attented to when this function is invoked as an
11812 * individual interrupt handler in MSI-X multi-message interrupt mode
11814 if (phba->intr_type == MSIX) {
11815 /* Check device state for handling interrupt */
11816 if (lpfc_intr_state_check(phba))
11818 /* Need to read HA REG for slow-path events */
11819 spin_lock_irqsave(&phba->hbalock, iflag);
11820 if (lpfc_readl(phba->HAregaddr, &ha_copy))
11822 /* If somebody is waiting to handle an eratt don't process it
11823 * here. The brdkill function will do this.
11825 if (phba->link_flag & LS_IGNORE_ERATT)
11826 ha_copy &= ~HA_ERATT;
11827 /* Check the need for handling ERATT in interrupt handler */
11828 if (ha_copy & HA_ERATT) {
11829 if (phba->hba_flag & HBA_ERATT_HANDLED)
11830 /* ERATT polling has handled ERATT */
11831 ha_copy &= ~HA_ERATT;
11833 /* Indicate interrupt handler handles ERATT */
11834 phba->hba_flag |= HBA_ERATT_HANDLED;
11838 * If there is deferred error attention, do not check for any
11841 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
11842 spin_unlock_irqrestore(&phba->hbalock, iflag);
11846 /* Clear up only attention source related to slow-path */
11847 if (lpfc_readl(phba->HCregaddr, &hc_copy))
11850 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
11851 HC_LAINT_ENA | HC_ERINT_ENA),
11853 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
11855 writel(hc_copy, phba->HCregaddr);
11856 readl(phba->HAregaddr); /* flush */
11857 spin_unlock_irqrestore(&phba->hbalock, iflag);
11859 ha_copy = phba->ha_copy;
11861 work_ha_copy = ha_copy & phba->work_ha_mask;
11863 if (work_ha_copy) {
11864 if (work_ha_copy & HA_LATT) {
11865 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
11867 * Turn off Link Attention interrupts
11868 * until CLEAR_LA done
11870 spin_lock_irqsave(&phba->hbalock, iflag);
11871 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
11872 if (lpfc_readl(phba->HCregaddr, &control))
11874 control &= ~HC_LAINT_ENA;
11875 writel(control, phba->HCregaddr);
11876 readl(phba->HCregaddr); /* flush */
11877 spin_unlock_irqrestore(&phba->hbalock, iflag);
11880 work_ha_copy &= ~HA_LATT;
11883 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
11885 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
11886 * the only slow ring.
11888 status = (work_ha_copy &
11889 (HA_RXMASK << (4*LPFC_ELS_RING)));
11890 status >>= (4*LPFC_ELS_RING);
11891 if (status & HA_RXMASK) {
11892 spin_lock_irqsave(&phba->hbalock, iflag);
11893 if (lpfc_readl(phba->HCregaddr, &control))
11896 lpfc_debugfs_slow_ring_trc(phba,
11897 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
11899 (uint32_t)phba->sli.slistat.sli_intr);
11901 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
11902 lpfc_debugfs_slow_ring_trc(phba,
11903 "ISR Disable ring:"
11904 "pwork:x%x hawork:x%x wait:x%x",
11905 phba->work_ha, work_ha_copy,
11906 (uint32_t)((unsigned long)
11907 &phba->work_waitq));
11910 ~(HC_R0INT_ENA << LPFC_ELS_RING);
11911 writel(control, phba->HCregaddr);
11912 readl(phba->HCregaddr); /* flush */
11915 lpfc_debugfs_slow_ring_trc(phba,
11916 "ISR slow ring: pwork:"
11917 "x%x hawork:x%x wait:x%x",
11918 phba->work_ha, work_ha_copy,
11919 (uint32_t)((unsigned long)
11920 &phba->work_waitq));
11922 spin_unlock_irqrestore(&phba->hbalock, iflag);
11925 spin_lock_irqsave(&phba->hbalock, iflag);
11926 if (work_ha_copy & HA_ERATT) {
11927 if (lpfc_sli_read_hs(phba))
11930 * Check if there is a deferred error condition
11933 if ((HS_FFER1 & phba->work_hs) &&
11934 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
11935 HS_FFER6 | HS_FFER7 | HS_FFER8) &
11937 phba->hba_flag |= DEFER_ERATT;
11938 /* Clear all interrupt enable conditions */
11939 writel(0, phba->HCregaddr);
11940 readl(phba->HCregaddr);
11944 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
11945 pmb = phba->sli.mbox_active;
11946 pmbox = &pmb->u.mb;
11948 vport = pmb->vport;
11950 /* First check out the status word */
11951 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
11952 if (pmbox->mbxOwner != OWN_HOST) {
11953 spin_unlock_irqrestore(&phba->hbalock, iflag);
11955 * Stray Mailbox Interrupt, mbxCommand <cmd>
11956 * mbxStatus <status>
11958 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
11960 "(%d):0304 Stray Mailbox "
11961 "Interrupt mbxCommand x%x "
11963 (vport ? vport->vpi : 0),
11966 /* clear mailbox attention bit */
11967 work_ha_copy &= ~HA_MBATT;
11969 phba->sli.mbox_active = NULL;
11970 spin_unlock_irqrestore(&phba->hbalock, iflag);
11971 phba->last_completion_time = jiffies;
11972 del_timer(&phba->sli.mbox_tmo);
11973 if (pmb->mbox_cmpl) {
11974 lpfc_sli_pcimem_bcopy(mbox, pmbox,
11976 if (pmb->out_ext_byte_len &&
11978 lpfc_sli_pcimem_bcopy(
11981 pmb->out_ext_byte_len);
11983 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
11984 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
11986 lpfc_debugfs_disc_trc(vport,
11987 LPFC_DISC_TRC_MBOX_VPORT,
11988 "MBOX dflt rpi: : "
11989 "status:x%x rpi:x%x",
11990 (uint32_t)pmbox->mbxStatus,
11991 pmbox->un.varWords[0], 0);
11993 if (!pmbox->mbxStatus) {
11994 mp = (struct lpfc_dmabuf *)
11996 ndlp = (struct lpfc_nodelist *)
11999 /* Reg_LOGIN of dflt RPI was
12000 * successful. new lets get
12001 * rid of the RPI using the
12002 * same mbox buffer.
12004 lpfc_unreg_login(phba,
12006 pmbox->un.varWords[0],
12009 lpfc_mbx_cmpl_dflt_rpi;
12010 pmb->context1 = mp;
12011 pmb->context2 = ndlp;
12012 pmb->vport = vport;
12013 rc = lpfc_sli_issue_mbox(phba,
12016 if (rc != MBX_BUSY)
12017 lpfc_printf_log(phba,
12019 LOG_MBOX | LOG_SLI,
12020 "0350 rc should have"
12021 "been MBX_BUSY\n");
12022 if (rc != MBX_NOT_FINISHED)
12023 goto send_current_mbox;
12027 &phba->pport->work_port_lock,
12029 phba->pport->work_port_events &=
12031 spin_unlock_irqrestore(
12032 &phba->pport->work_port_lock,
12034 lpfc_mbox_cmpl_put(phba, pmb);
12037 spin_unlock_irqrestore(&phba->hbalock, iflag);
12039 if ((work_ha_copy & HA_MBATT) &&
12040 (phba->sli.mbox_active == NULL)) {
12042 /* Process next mailbox command if there is one */
12044 rc = lpfc_sli_issue_mbox(phba, NULL,
12046 } while (rc == MBX_NOT_FINISHED);
12047 if (rc != MBX_SUCCESS)
12048 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
12049 LOG_SLI, "0349 rc should be "
12053 spin_lock_irqsave(&phba->hbalock, iflag);
12054 phba->work_ha |= work_ha_copy;
12055 spin_unlock_irqrestore(&phba->hbalock, iflag);
12056 lpfc_worker_wake_up(phba);
12058 return IRQ_HANDLED;
12060 spin_unlock_irqrestore(&phba->hbalock, iflag);
12061 return IRQ_HANDLED;
12063 } /* lpfc_sli_sp_intr_handler */
12066 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
12067 * @irq: Interrupt number.
12068 * @dev_id: The device context pointer.
12070 * This function is directly called from the PCI layer as an interrupt
12071 * service routine when device with SLI-3 interface spec is enabled with
12072 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
12073 * ring event in the HBA. However, when the device is enabled with either
12074 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
12075 * device-level interrupt handler. When the PCI slot is in error recovery
12076 * or the HBA is undergoing initialization, the interrupt handler will not
12077 * process the interrupt. The SCSI FCP fast-path ring event are handled in
12078 * the intrrupt context. This function is called without any lock held.
12079 * It gets the hbalock to access and update SLI data structures.
12081 * This function returns IRQ_HANDLED when interrupt is handled else it
12082 * returns IRQ_NONE.
12085 lpfc_sli_fp_intr_handler(int irq, void *dev_id)
12087 struct lpfc_hba *phba;
12089 unsigned long status;
12090 unsigned long iflag;
12091 struct lpfc_sli_ring *pring;
12093 /* Get the driver's phba structure from the dev_id and
12094 * assume the HBA is not interrupting.
12096 phba = (struct lpfc_hba *) dev_id;
12098 if (unlikely(!phba))
12102 * Stuff needs to be attented to when this function is invoked as an
12103 * individual interrupt handler in MSI-X multi-message interrupt mode
12105 if (phba->intr_type == MSIX) {
12106 /* Check device state for handling interrupt */
12107 if (lpfc_intr_state_check(phba))
12109 /* Need to read HA REG for FCP ring and other ring events */
12110 if (lpfc_readl(phba->HAregaddr, &ha_copy))
12111 return IRQ_HANDLED;
12112 /* Clear up only attention source related to fast-path */
12113 spin_lock_irqsave(&phba->hbalock, iflag);
12115 * If there is deferred error attention, do not check for
12118 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
12119 spin_unlock_irqrestore(&phba->hbalock, iflag);
12122 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
12124 readl(phba->HAregaddr); /* flush */
12125 spin_unlock_irqrestore(&phba->hbalock, iflag);
12127 ha_copy = phba->ha_copy;
12130 * Process all events on FCP ring. Take the optimized path for FCP IO.
12132 ha_copy &= ~(phba->work_ha_mask);
12134 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
12135 status >>= (4*LPFC_FCP_RING);
12136 pring = &phba->sli.sli3_ring[LPFC_FCP_RING];
12137 if (status & HA_RXMASK)
12138 lpfc_sli_handle_fast_ring_event(phba, pring, status);
12140 if (phba->cfg_multi_ring_support == 2) {
12142 * Process all events on extra ring. Take the optimized path
12143 * for extra ring IO.
12145 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
12146 status >>= (4*LPFC_EXTRA_RING);
12147 if (status & HA_RXMASK) {
12148 lpfc_sli_handle_fast_ring_event(phba,
12149 &phba->sli.sli3_ring[LPFC_EXTRA_RING],
12153 return IRQ_HANDLED;
12154 } /* lpfc_sli_fp_intr_handler */
12157 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
12158 * @irq: Interrupt number.
12159 * @dev_id: The device context pointer.
12161 * This function is the HBA device-level interrupt handler to device with
12162 * SLI-3 interface spec, called from the PCI layer when either MSI or
12163 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
12164 * requires driver attention. This function invokes the slow-path interrupt
12165 * attention handling function and fast-path interrupt attention handling
12166 * function in turn to process the relevant HBA attention events. This
12167 * function is called without any lock held. It gets the hbalock to access
12168 * and update SLI data structures.
12170 * This function returns IRQ_HANDLED when interrupt is handled, else it
12171 * returns IRQ_NONE.
12174 lpfc_sli_intr_handler(int irq, void *dev_id)
12176 struct lpfc_hba *phba;
12177 irqreturn_t sp_irq_rc, fp_irq_rc;
12178 unsigned long status1, status2;
12182 * Get the driver's phba structure from the dev_id and
12183 * assume the HBA is not interrupting.
12185 phba = (struct lpfc_hba *) dev_id;
12187 if (unlikely(!phba))
12190 /* Check device state for handling interrupt */
12191 if (lpfc_intr_state_check(phba))
12194 spin_lock(&phba->hbalock);
12195 if (lpfc_readl(phba->HAregaddr, &phba->ha_copy)) {
12196 spin_unlock(&phba->hbalock);
12197 return IRQ_HANDLED;
12200 if (unlikely(!phba->ha_copy)) {
12201 spin_unlock(&phba->hbalock);
12203 } else if (phba->ha_copy & HA_ERATT) {
12204 if (phba->hba_flag & HBA_ERATT_HANDLED)
12205 /* ERATT polling has handled ERATT */
12206 phba->ha_copy &= ~HA_ERATT;
12208 /* Indicate interrupt handler handles ERATT */
12209 phba->hba_flag |= HBA_ERATT_HANDLED;
12213 * If there is deferred error attention, do not check for any interrupt.
12215 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
12216 spin_unlock(&phba->hbalock);
12220 /* Clear attention sources except link and error attentions */
12221 if (lpfc_readl(phba->HCregaddr, &hc_copy)) {
12222 spin_unlock(&phba->hbalock);
12223 return IRQ_HANDLED;
12225 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
12226 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
12228 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
12229 writel(hc_copy, phba->HCregaddr);
12230 readl(phba->HAregaddr); /* flush */
12231 spin_unlock(&phba->hbalock);
12234 * Invokes slow-path host attention interrupt handling as appropriate.
12237 /* status of events with mailbox and link attention */
12238 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
12240 /* status of events with ELS ring */
12241 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
12242 status2 >>= (4*LPFC_ELS_RING);
12244 if (status1 || (status2 & HA_RXMASK))
12245 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
12247 sp_irq_rc = IRQ_NONE;
12250 * Invoke fast-path host attention interrupt handling as appropriate.
12253 /* status of events with FCP ring */
12254 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
12255 status1 >>= (4*LPFC_FCP_RING);
12257 /* status of events with extra ring */
12258 if (phba->cfg_multi_ring_support == 2) {
12259 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
12260 status2 >>= (4*LPFC_EXTRA_RING);
12264 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
12265 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
12267 fp_irq_rc = IRQ_NONE;
12269 /* Return device-level interrupt handling status */
12270 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
12271 } /* lpfc_sli_intr_handler */
12274 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
12275 * @phba: pointer to lpfc hba data structure.
12277 * This routine is invoked by the worker thread to process all the pending
12278 * SLI4 FCP abort XRI events.
12280 void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba)
12282 struct lpfc_cq_event *cq_event;
12284 /* First, declare the fcp xri abort event has been handled */
12285 spin_lock_irq(&phba->hbalock);
12286 phba->hba_flag &= ~FCP_XRI_ABORT_EVENT;
12287 spin_unlock_irq(&phba->hbalock);
12288 /* Now, handle all the fcp xri abort events */
12289 while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) {
12290 /* Get the first event from the head of the event queue */
12291 spin_lock_irq(&phba->hbalock);
12292 list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
12293 cq_event, struct lpfc_cq_event, list);
12294 spin_unlock_irq(&phba->hbalock);
12295 /* Notify aborted XRI for FCP work queue */
12296 lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
12297 /* Free the event processed back to the free pool */
12298 lpfc_sli4_cq_event_release(phba, cq_event);
12303 * lpfc_sli4_nvme_xri_abort_event_proc - Process nvme xri abort event
12304 * @phba: pointer to lpfc hba data structure.
12306 * This routine is invoked by the worker thread to process all the pending
12307 * SLI4 NVME abort XRI events.
12309 void lpfc_sli4_nvme_xri_abort_event_proc(struct lpfc_hba *phba)
12311 struct lpfc_cq_event *cq_event;
12313 /* First, declare the fcp xri abort event has been handled */
12314 spin_lock_irq(&phba->hbalock);
12315 phba->hba_flag &= ~NVME_XRI_ABORT_EVENT;
12316 spin_unlock_irq(&phba->hbalock);
12317 /* Now, handle all the fcp xri abort events */
12318 while (!list_empty(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue)) {
12319 /* Get the first event from the head of the event queue */
12320 spin_lock_irq(&phba->hbalock);
12321 list_remove_head(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue,
12322 cq_event, struct lpfc_cq_event, list);
12323 spin_unlock_irq(&phba->hbalock);
12324 /* Notify aborted XRI for NVME work queue */
12325 if (phba->nvmet_support) {
12326 lpfc_sli4_nvmet_xri_aborted(phba,
12327 &cq_event->cqe.wcqe_axri);
12329 lpfc_sli4_nvme_xri_aborted(phba,
12330 &cq_event->cqe.wcqe_axri);
12332 /* Free the event processed back to the free pool */
12333 lpfc_sli4_cq_event_release(phba, cq_event);
12338 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
12339 * @phba: pointer to lpfc hba data structure.
12341 * This routine is invoked by the worker thread to process all the pending
12342 * SLI4 els abort xri events.
12344 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
12346 struct lpfc_cq_event *cq_event;
12348 /* First, declare the els xri abort event has been handled */
12349 spin_lock_irq(&phba->hbalock);
12350 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
12351 spin_unlock_irq(&phba->hbalock);
12352 /* Now, handle all the els xri abort events */
12353 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
12354 /* Get the first event from the head of the event queue */
12355 spin_lock_irq(&phba->hbalock);
12356 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
12357 cq_event, struct lpfc_cq_event, list);
12358 spin_unlock_irq(&phba->hbalock);
12359 /* Notify aborted XRI for ELS work queue */
12360 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
12361 /* Free the event processed back to the free pool */
12362 lpfc_sli4_cq_event_release(phba, cq_event);
12367 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
12368 * @phba: pointer to lpfc hba data structure
12369 * @pIocbIn: pointer to the rspiocbq
12370 * @pIocbOut: pointer to the cmdiocbq
12371 * @wcqe: pointer to the complete wcqe
12373 * This routine transfers the fields of a command iocbq to a response iocbq
12374 * by copying all the IOCB fields from command iocbq and transferring the
12375 * completion status information from the complete wcqe.
12378 lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
12379 struct lpfc_iocbq *pIocbIn,
12380 struct lpfc_iocbq *pIocbOut,
12381 struct lpfc_wcqe_complete *wcqe)
12384 unsigned long iflags;
12385 uint32_t status, max_response;
12386 struct lpfc_dmabuf *dmabuf;
12387 struct ulp_bde64 *bpl, bde;
12388 size_t offset = offsetof(struct lpfc_iocbq, iocb);
12390 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
12391 sizeof(struct lpfc_iocbq) - offset);
12392 /* Map WCQE parameters into irspiocb parameters */
12393 status = bf_get(lpfc_wcqe_c_status, wcqe);
12394 pIocbIn->iocb.ulpStatus = (status & LPFC_IOCB_STATUS_MASK);
12395 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
12396 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
12397 pIocbIn->iocb.un.fcpi.fcpi_parm =
12398 pIocbOut->iocb.un.fcpi.fcpi_parm -
12399 wcqe->total_data_placed;
12401 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
12403 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
12404 switch (pIocbOut->iocb.ulpCommand) {
12405 case CMD_ELS_REQUEST64_CR:
12406 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
12407 bpl = (struct ulp_bde64 *)dmabuf->virt;
12408 bde.tus.w = le32_to_cpu(bpl[1].tus.w);
12409 max_response = bde.tus.f.bdeSize;
12411 case CMD_GEN_REQUEST64_CR:
12413 if (!pIocbOut->context3)
12415 numBdes = pIocbOut->iocb.un.genreq64.bdl.bdeSize/
12416 sizeof(struct ulp_bde64);
12417 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
12418 bpl = (struct ulp_bde64 *)dmabuf->virt;
12419 for (i = 0; i < numBdes; i++) {
12420 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
12421 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
12422 max_response += bde.tus.f.bdeSize;
12426 max_response = wcqe->total_data_placed;
12429 if (max_response < wcqe->total_data_placed)
12430 pIocbIn->iocb.un.genreq64.bdl.bdeSize = max_response;
12432 pIocbIn->iocb.un.genreq64.bdl.bdeSize =
12433 wcqe->total_data_placed;
12436 /* Convert BG errors for completion status */
12437 if (status == CQE_STATUS_DI_ERROR) {
12438 pIocbIn->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
12440 if (bf_get(lpfc_wcqe_c_bg_edir, wcqe))
12441 pIocbIn->iocb.un.ulpWord[4] = IOERR_RX_DMA_FAILED;
12443 pIocbIn->iocb.un.ulpWord[4] = IOERR_TX_DMA_FAILED;
12445 pIocbIn->iocb.unsli3.sli3_bg.bgstat = 0;
12446 if (bf_get(lpfc_wcqe_c_bg_ge, wcqe)) /* Guard Check failed */
12447 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12448 BGS_GUARD_ERR_MASK;
12449 if (bf_get(lpfc_wcqe_c_bg_ae, wcqe)) /* App Tag Check failed */
12450 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12451 BGS_APPTAG_ERR_MASK;
12452 if (bf_get(lpfc_wcqe_c_bg_re, wcqe)) /* Ref Tag Check failed */
12453 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12454 BGS_REFTAG_ERR_MASK;
12456 /* Check to see if there was any good data before the error */
12457 if (bf_get(lpfc_wcqe_c_bg_tdpv, wcqe)) {
12458 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12459 BGS_HI_WATER_MARK_PRESENT_MASK;
12460 pIocbIn->iocb.unsli3.sli3_bg.bghm =
12461 wcqe->total_data_placed;
12465 * Set ALL the error bits to indicate we don't know what
12466 * type of error it is.
12468 if (!pIocbIn->iocb.unsli3.sli3_bg.bgstat)
12469 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12470 (BGS_REFTAG_ERR_MASK | BGS_APPTAG_ERR_MASK |
12471 BGS_GUARD_ERR_MASK);
12474 /* Pick up HBA exchange busy condition */
12475 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
12476 spin_lock_irqsave(&phba->hbalock, iflags);
12477 pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY;
12478 spin_unlock_irqrestore(&phba->hbalock, iflags);
12483 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
12484 * @phba: Pointer to HBA context object.
12485 * @wcqe: Pointer to work-queue completion queue entry.
12487 * This routine handles an ELS work-queue completion event and construct
12488 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
12489 * discovery engine to handle.
12491 * Return: Pointer to the receive IOCBQ, NULL otherwise.
12493 static struct lpfc_iocbq *
12494 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
12495 struct lpfc_iocbq *irspiocbq)
12497 struct lpfc_sli_ring *pring;
12498 struct lpfc_iocbq *cmdiocbq;
12499 struct lpfc_wcqe_complete *wcqe;
12500 unsigned long iflags;
12502 pring = lpfc_phba_elsring(phba);
12504 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
12505 spin_lock_irqsave(&pring->ring_lock, iflags);
12506 pring->stats.iocb_event++;
12507 /* Look up the ELS command IOCB and create pseudo response IOCB */
12508 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
12509 bf_get(lpfc_wcqe_c_request_tag, wcqe));
12510 /* Put the iocb back on the txcmplq */
12511 lpfc_sli_ringtxcmpl_put(phba, pring, cmdiocbq);
12512 spin_unlock_irqrestore(&pring->ring_lock, iflags);
12514 if (unlikely(!cmdiocbq)) {
12515 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12516 "0386 ELS complete with no corresponding "
12517 "cmdiocb: iotag (%d)\n",
12518 bf_get(lpfc_wcqe_c_request_tag, wcqe));
12519 lpfc_sli_release_iocbq(phba, irspiocbq);
12523 /* Fake the irspiocbq and copy necessary response information */
12524 lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe);
12530 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
12531 * @phba: Pointer to HBA context object.
12532 * @cqe: Pointer to mailbox completion queue entry.
12534 * This routine process a mailbox completion queue entry with asynchrous
12537 * Return: true if work posted to worker thread, otherwise false.
12540 lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
12542 struct lpfc_cq_event *cq_event;
12543 unsigned long iflags;
12545 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
12546 "0392 Async Event: word0:x%x, word1:x%x, "
12547 "word2:x%x, word3:x%x\n", mcqe->word0,
12548 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
12550 /* Allocate a new internal CQ_EVENT entry */
12551 cq_event = lpfc_sli4_cq_event_alloc(phba);
12553 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12554 "0394 Failed to allocate CQ_EVENT entry\n");
12558 /* Move the CQE into an asynchronous event entry */
12559 memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe));
12560 spin_lock_irqsave(&phba->hbalock, iflags);
12561 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
12562 /* Set the async event flag */
12563 phba->hba_flag |= ASYNC_EVENT;
12564 spin_unlock_irqrestore(&phba->hbalock, iflags);
12570 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
12571 * @phba: Pointer to HBA context object.
12572 * @cqe: Pointer to mailbox completion queue entry.
12574 * This routine process a mailbox completion queue entry with mailbox
12575 * completion event.
12577 * Return: true if work posted to worker thread, otherwise false.
12580 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
12582 uint32_t mcqe_status;
12583 MAILBOX_t *mbox, *pmbox;
12584 struct lpfc_mqe *mqe;
12585 struct lpfc_vport *vport;
12586 struct lpfc_nodelist *ndlp;
12587 struct lpfc_dmabuf *mp;
12588 unsigned long iflags;
12590 bool workposted = false;
12593 /* If not a mailbox complete MCQE, out by checking mailbox consume */
12594 if (!bf_get(lpfc_trailer_completed, mcqe))
12595 goto out_no_mqe_complete;
12597 /* Get the reference to the active mbox command */
12598 spin_lock_irqsave(&phba->hbalock, iflags);
12599 pmb = phba->sli.mbox_active;
12600 if (unlikely(!pmb)) {
12601 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
12602 "1832 No pending MBOX command to handle\n");
12603 spin_unlock_irqrestore(&phba->hbalock, iflags);
12604 goto out_no_mqe_complete;
12606 spin_unlock_irqrestore(&phba->hbalock, iflags);
12608 pmbox = (MAILBOX_t *)&pmb->u.mqe;
12610 vport = pmb->vport;
12612 /* Reset heartbeat timer */
12613 phba->last_completion_time = jiffies;
12614 del_timer(&phba->sli.mbox_tmo);
12616 /* Move mbox data to caller's mailbox region, do endian swapping */
12617 if (pmb->mbox_cmpl && mbox)
12618 lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
12621 * For mcqe errors, conditionally move a modified error code to
12622 * the mbox so that the error will not be missed.
12624 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
12625 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
12626 if (bf_get(lpfc_mqe_status, mqe) == MBX_SUCCESS)
12627 bf_set(lpfc_mqe_status, mqe,
12628 (LPFC_MBX_ERROR_RANGE | mcqe_status));
12630 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
12631 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
12632 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
12633 "MBOX dflt rpi: status:x%x rpi:x%x",
12635 pmbox->un.varWords[0], 0);
12636 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
12637 mp = (struct lpfc_dmabuf *)(pmb->context1);
12638 ndlp = (struct lpfc_nodelist *)pmb->context2;
12639 /* Reg_LOGIN of dflt RPI was successful. Now lets get
12640 * RID of the PPI using the same mbox buffer.
12642 lpfc_unreg_login(phba, vport->vpi,
12643 pmbox->un.varWords[0], pmb);
12644 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
12645 pmb->context1 = mp;
12646 pmb->context2 = ndlp;
12647 pmb->vport = vport;
12648 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
12649 if (rc != MBX_BUSY)
12650 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
12651 LOG_SLI, "0385 rc should "
12652 "have been MBX_BUSY\n");
12653 if (rc != MBX_NOT_FINISHED)
12654 goto send_current_mbox;
12657 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
12658 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
12659 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
12661 /* There is mailbox completion work to do */
12662 spin_lock_irqsave(&phba->hbalock, iflags);
12663 __lpfc_mbox_cmpl_put(phba, pmb);
12664 phba->work_ha |= HA_MBATT;
12665 spin_unlock_irqrestore(&phba->hbalock, iflags);
12669 spin_lock_irqsave(&phba->hbalock, iflags);
12670 /* Release the mailbox command posting token */
12671 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
12672 /* Setting active mailbox pointer need to be in sync to flag clear */
12673 phba->sli.mbox_active = NULL;
12674 spin_unlock_irqrestore(&phba->hbalock, iflags);
12675 /* Wake up worker thread to post the next pending mailbox command */
12676 lpfc_worker_wake_up(phba);
12677 out_no_mqe_complete:
12678 if (bf_get(lpfc_trailer_consumed, mcqe))
12679 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
12684 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
12685 * @phba: Pointer to HBA context object.
12686 * @cqe: Pointer to mailbox completion queue entry.
12688 * This routine process a mailbox completion queue entry, it invokes the
12689 * proper mailbox complete handling or asynchrous event handling routine
12690 * according to the MCQE's async bit.
12692 * Return: true if work posted to worker thread, otherwise false.
12695 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
12697 struct lpfc_mcqe mcqe;
12700 /* Copy the mailbox MCQE and convert endian order as needed */
12701 lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
12703 /* Invoke the proper event handling routine */
12704 if (!bf_get(lpfc_trailer_async, &mcqe))
12705 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
12707 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
12712 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
12713 * @phba: Pointer to HBA context object.
12714 * @cq: Pointer to associated CQ
12715 * @wcqe: Pointer to work-queue completion queue entry.
12717 * This routine handles an ELS work-queue completion event.
12719 * Return: true if work posted to worker thread, otherwise false.
12722 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
12723 struct lpfc_wcqe_complete *wcqe)
12725 struct lpfc_iocbq *irspiocbq;
12726 unsigned long iflags;
12727 struct lpfc_sli_ring *pring = cq->pring;
12729 int txcmplq_cnt = 0;
12730 int fcp_txcmplq_cnt = 0;
12732 /* Get an irspiocbq for later ELS response processing use */
12733 irspiocbq = lpfc_sli_get_iocbq(phba);
12735 if (!list_empty(&pring->txq))
12737 if (!list_empty(&pring->txcmplq))
12739 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12740 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
12741 "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n",
12742 txq_cnt, phba->iocb_cnt,
12748 /* Save off the slow-path queue event for work thread to process */
12749 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
12750 spin_lock_irqsave(&phba->hbalock, iflags);
12751 list_add_tail(&irspiocbq->cq_event.list,
12752 &phba->sli4_hba.sp_queue_event);
12753 phba->hba_flag |= HBA_SP_QUEUE_EVT;
12754 spin_unlock_irqrestore(&phba->hbalock, iflags);
12760 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
12761 * @phba: Pointer to HBA context object.
12762 * @wcqe: Pointer to work-queue completion queue entry.
12764 * This routine handles slow-path WQ entry consumed event by invoking the
12765 * proper WQ release routine to the slow-path WQ.
12768 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
12769 struct lpfc_wcqe_release *wcqe)
12771 /* sanity check on queue memory */
12772 if (unlikely(!phba->sli4_hba.els_wq))
12774 /* Check for the slow-path ELS work queue */
12775 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
12776 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
12777 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
12779 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12780 "2579 Slow-path wqe consume event carries "
12781 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
12782 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
12783 phba->sli4_hba.els_wq->queue_id);
12787 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
12788 * @phba: Pointer to HBA context object.
12789 * @cq: Pointer to a WQ completion queue.
12790 * @wcqe: Pointer to work-queue completion queue entry.
12792 * This routine handles an XRI abort event.
12794 * Return: true if work posted to worker thread, otherwise false.
12797 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
12798 struct lpfc_queue *cq,
12799 struct sli4_wcqe_xri_aborted *wcqe)
12801 bool workposted = false;
12802 struct lpfc_cq_event *cq_event;
12803 unsigned long iflags;
12805 /* Allocate a new internal CQ_EVENT entry */
12806 cq_event = lpfc_sli4_cq_event_alloc(phba);
12808 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12809 "0602 Failed to allocate CQ_EVENT entry\n");
12813 /* Move the CQE into the proper xri abort event list */
12814 memcpy(&cq_event->cqe, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
12815 switch (cq->subtype) {
12817 spin_lock_irqsave(&phba->hbalock, iflags);
12818 list_add_tail(&cq_event->list,
12819 &phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
12820 /* Set the fcp xri abort event flag */
12821 phba->hba_flag |= FCP_XRI_ABORT_EVENT;
12822 spin_unlock_irqrestore(&phba->hbalock, iflags);
12826 spin_lock_irqsave(&phba->hbalock, iflags);
12827 list_add_tail(&cq_event->list,
12828 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
12829 /* Set the els xri abort event flag */
12830 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
12831 spin_unlock_irqrestore(&phba->hbalock, iflags);
12835 spin_lock_irqsave(&phba->hbalock, iflags);
12836 list_add_tail(&cq_event->list,
12837 &phba->sli4_hba.sp_nvme_xri_aborted_work_queue);
12838 /* Set the nvme xri abort event flag */
12839 phba->hba_flag |= NVME_XRI_ABORT_EVENT;
12840 spin_unlock_irqrestore(&phba->hbalock, iflags);
12844 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12845 "0603 Invalid CQ subtype %d: "
12846 "%08x %08x %08x %08x\n",
12847 cq->subtype, wcqe->word0, wcqe->parameter,
12848 wcqe->word2, wcqe->word3);
12849 lpfc_sli4_cq_event_release(phba, cq_event);
12850 workposted = false;
12857 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
12858 * @phba: Pointer to HBA context object.
12859 * @rcqe: Pointer to receive-queue completion queue entry.
12861 * This routine process a receive-queue completion queue entry.
12863 * Return: true if work posted to worker thread, otherwise false.
12866 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
12868 bool workposted = false;
12869 struct fc_frame_header *fc_hdr;
12870 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
12871 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
12872 struct lpfc_nvmet_tgtport *tgtp;
12873 struct hbq_dmabuf *dma_buf;
12874 uint32_t status, rq_id;
12875 unsigned long iflags;
12877 /* sanity check on queue memory */
12878 if (unlikely(!hrq) || unlikely(!drq))
12881 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
12882 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
12884 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
12885 if (rq_id != hrq->queue_id)
12888 status = bf_get(lpfc_rcqe_status, rcqe);
12890 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
12891 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12892 "2537 Receive Frame Truncated!!\n");
12893 case FC_STATUS_RQ_SUCCESS:
12894 lpfc_sli4_rq_release(hrq, drq);
12895 spin_lock_irqsave(&phba->hbalock, iflags);
12896 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
12898 hrq->RQ_no_buf_found++;
12899 spin_unlock_irqrestore(&phba->hbalock, iflags);
12903 hrq->RQ_buf_posted--;
12904 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
12906 /* If a NVME LS event (type 0x28), treat it as Fast path */
12907 fc_hdr = (struct fc_frame_header *)dma_buf->hbuf.virt;
12909 /* save off the frame for the word thread to process */
12910 list_add_tail(&dma_buf->cq_event.list,
12911 &phba->sli4_hba.sp_queue_event);
12912 /* Frame received */
12913 phba->hba_flag |= HBA_SP_QUEUE_EVT;
12914 spin_unlock_irqrestore(&phba->hbalock, iflags);
12917 case FC_STATUS_INSUFF_BUF_FRM_DISC:
12918 if (phba->nvmet_support) {
12919 tgtp = phba->targetport->private;
12920 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_NVME,
12921 "6402 RQE Error x%x, posted %d err_cnt "
12923 status, hrq->RQ_buf_posted,
12924 hrq->RQ_no_posted_buf,
12925 atomic_read(&tgtp->rcv_fcp_cmd_in),
12926 atomic_read(&tgtp->rcv_fcp_cmd_out),
12927 atomic_read(&tgtp->xmt_fcp_release));
12931 case FC_STATUS_INSUFF_BUF_NEED_BUF:
12932 hrq->RQ_no_posted_buf++;
12933 /* Post more buffers if possible */
12934 spin_lock_irqsave(&phba->hbalock, iflags);
12935 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
12936 spin_unlock_irqrestore(&phba->hbalock, iflags);
12945 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
12946 * @phba: Pointer to HBA context object.
12947 * @cq: Pointer to the completion queue.
12948 * @wcqe: Pointer to a completion queue entry.
12950 * This routine process a slow-path work-queue or receive queue completion queue
12953 * Return: true if work posted to worker thread, otherwise false.
12956 lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
12957 struct lpfc_cqe *cqe)
12959 struct lpfc_cqe cqevt;
12960 bool workposted = false;
12962 /* Copy the work queue CQE and convert endian order if needed */
12963 lpfc_sli_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
12965 /* Check and process for different type of WCQE and dispatch */
12966 switch (bf_get(lpfc_cqe_code, &cqevt)) {
12967 case CQE_CODE_COMPL_WQE:
12968 /* Process the WQ/RQ complete event */
12969 phba->last_completion_time = jiffies;
12970 workposted = lpfc_sli4_sp_handle_els_wcqe(phba, cq,
12971 (struct lpfc_wcqe_complete *)&cqevt);
12973 case CQE_CODE_RELEASE_WQE:
12974 /* Process the WQ release event */
12975 lpfc_sli4_sp_handle_rel_wcqe(phba,
12976 (struct lpfc_wcqe_release *)&cqevt);
12978 case CQE_CODE_XRI_ABORTED:
12979 /* Process the WQ XRI abort event */
12980 phba->last_completion_time = jiffies;
12981 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
12982 (struct sli4_wcqe_xri_aborted *)&cqevt);
12984 case CQE_CODE_RECEIVE:
12985 case CQE_CODE_RECEIVE_V1:
12986 /* Process the RQ event */
12987 phba->last_completion_time = jiffies;
12988 workposted = lpfc_sli4_sp_handle_rcqe(phba,
12989 (struct lpfc_rcqe *)&cqevt);
12992 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12993 "0388 Not a valid WCQE code: x%x\n",
12994 bf_get(lpfc_cqe_code, &cqevt));
13001 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
13002 * @phba: Pointer to HBA context object.
13003 * @eqe: Pointer to fast-path event queue entry.
13005 * This routine process a event queue entry from the slow-path event queue.
13006 * It will check the MajorCode and MinorCode to determine this is for a
13007 * completion event on a completion queue, if not, an error shall be logged
13008 * and just return. Otherwise, it will get to the corresponding completion
13009 * queue and process all the entries on that completion queue, rearm the
13010 * completion queue, and then return.
13014 lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
13015 struct lpfc_queue *speq)
13017 struct lpfc_queue *cq = NULL, *childq;
13018 struct lpfc_cqe *cqe;
13019 bool workposted = false;
13023 /* Get the reference to the corresponding CQ */
13024 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
13026 list_for_each_entry(childq, &speq->child_list, list) {
13027 if (childq->queue_id == cqid) {
13032 if (unlikely(!cq)) {
13033 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
13034 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13035 "0365 Slow-path CQ identifier "
13036 "(%d) does not exist\n", cqid);
13040 /* Save EQ associated with this CQ */
13041 cq->assoc_qp = speq;
13043 /* Process all the entries to the CQ */
13044 switch (cq->type) {
13046 while ((cqe = lpfc_sli4_cq_get(cq))) {
13047 workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe);
13048 if (!(++ecount % cq->entry_repost))
13054 while ((cqe = lpfc_sli4_cq_get(cq))) {
13055 if ((cq->subtype == LPFC_FCP) ||
13056 (cq->subtype == LPFC_NVME))
13057 workposted |= lpfc_sli4_fp_handle_cqe(phba, cq,
13060 workposted |= lpfc_sli4_sp_handle_cqe(phba, cq,
13062 if (!(++ecount % cq->entry_repost))
13066 /* Track the max number of CQEs processed in 1 EQ */
13067 if (ecount > cq->CQ_max_cqe)
13068 cq->CQ_max_cqe = ecount;
13071 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13072 "0370 Invalid completion queue type (%d)\n",
13077 /* Catch the no cq entry condition, log an error */
13078 if (unlikely(ecount == 0))
13079 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13080 "0371 No entry from the CQ: identifier "
13081 "(x%x), type (%d)\n", cq->queue_id, cq->type);
13083 /* In any case, flash and re-arm the RCQ */
13084 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
13086 /* wake up worker thread if there are works to be done */
13088 lpfc_worker_wake_up(phba);
13092 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
13093 * @phba: Pointer to HBA context object.
13094 * @cq: Pointer to associated CQ
13095 * @wcqe: Pointer to work-queue completion queue entry.
13097 * This routine process a fast-path work queue completion entry from fast-path
13098 * event queue for FCP command response completion.
13101 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13102 struct lpfc_wcqe_complete *wcqe)
13104 struct lpfc_sli_ring *pring = cq->pring;
13105 struct lpfc_iocbq *cmdiocbq;
13106 struct lpfc_iocbq irspiocbq;
13107 unsigned long iflags;
13109 /* Check for response status */
13110 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
13111 /* If resource errors reported from HBA, reduce queue
13112 * depth of the SCSI device.
13114 if (((bf_get(lpfc_wcqe_c_status, wcqe) ==
13115 IOSTAT_LOCAL_REJECT)) &&
13116 ((wcqe->parameter & IOERR_PARAM_MASK) ==
13117 IOERR_NO_RESOURCES))
13118 phba->lpfc_rampdown_queue_depth(phba);
13120 /* Log the error status */
13121 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13122 "0373 FCP complete error: status=x%x, "
13123 "hw_status=x%x, total_data_specified=%d, "
13124 "parameter=x%x, word3=x%x\n",
13125 bf_get(lpfc_wcqe_c_status, wcqe),
13126 bf_get(lpfc_wcqe_c_hw_status, wcqe),
13127 wcqe->total_data_placed, wcqe->parameter,
13131 /* Look up the FCP command IOCB and create pseudo response IOCB */
13132 spin_lock_irqsave(&pring->ring_lock, iflags);
13133 pring->stats.iocb_event++;
13134 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
13135 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13136 spin_unlock_irqrestore(&pring->ring_lock, iflags);
13137 if (unlikely(!cmdiocbq)) {
13138 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13139 "0374 FCP complete with no corresponding "
13140 "cmdiocb: iotag (%d)\n",
13141 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13146 cmdiocbq->isr_timestamp =
13147 cq->assoc_qp->isr_timestamp;
13149 if (cmdiocbq->iocb_cmpl == NULL) {
13150 if (cmdiocbq->wqe_cmpl) {
13151 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
13152 spin_lock_irqsave(&phba->hbalock, iflags);
13153 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
13154 spin_unlock_irqrestore(&phba->hbalock, iflags);
13157 /* Pass the cmd_iocb and the wcqe to the upper layer */
13158 (cmdiocbq->wqe_cmpl)(phba, cmdiocbq, wcqe);
13161 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13162 "0375 FCP cmdiocb not callback function "
13164 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13168 /* Fake the irspiocb and copy necessary response information */
13169 lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
13171 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
13172 spin_lock_irqsave(&phba->hbalock, iflags);
13173 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
13174 spin_unlock_irqrestore(&phba->hbalock, iflags);
13177 /* Pass the cmd_iocb and the rsp state to the upper layer */
13178 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
13182 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
13183 * @phba: Pointer to HBA context object.
13184 * @cq: Pointer to completion queue.
13185 * @wcqe: Pointer to work-queue completion queue entry.
13187 * This routine handles an fast-path WQ entry consumed event by invoking the
13188 * proper WQ release routine to the slow-path WQ.
13191 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13192 struct lpfc_wcqe_release *wcqe)
13194 struct lpfc_queue *childwq;
13195 bool wqid_matched = false;
13198 /* Check for fast-path FCP work queue release */
13199 hba_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
13200 list_for_each_entry(childwq, &cq->child_list, list) {
13201 if (childwq->queue_id == hba_wqid) {
13202 lpfc_sli4_wq_release(childwq,
13203 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
13204 wqid_matched = true;
13208 /* Report warning log message if no match found */
13209 if (wqid_matched != true)
13210 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13211 "2580 Fast-path wqe consume event carries "
13212 "miss-matched qid: wcqe-qid=x%x\n", hba_wqid);
13216 * lpfc_sli4_nvmet_handle_rcqe - Process a receive-queue completion queue entry
13217 * @phba: Pointer to HBA context object.
13218 * @rcqe: Pointer to receive-queue completion queue entry.
13220 * This routine process a receive-queue completion queue entry.
13222 * Return: true if work posted to worker thread, otherwise false.
13225 lpfc_sli4_nvmet_handle_rcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13226 struct lpfc_rcqe *rcqe)
13228 bool workposted = false;
13229 struct lpfc_queue *hrq;
13230 struct lpfc_queue *drq;
13231 struct rqb_dmabuf *dma_buf;
13232 struct fc_frame_header *fc_hdr;
13233 struct lpfc_nvmet_tgtport *tgtp;
13234 uint32_t status, rq_id;
13235 unsigned long iflags;
13236 uint32_t fctl, idx;
13238 if ((phba->nvmet_support == 0) ||
13239 (phba->sli4_hba.nvmet_cqset == NULL))
13242 idx = cq->queue_id - phba->sli4_hba.nvmet_cqset[0]->queue_id;
13243 hrq = phba->sli4_hba.nvmet_mrq_hdr[idx];
13244 drq = phba->sli4_hba.nvmet_mrq_data[idx];
13246 /* sanity check on queue memory */
13247 if (unlikely(!hrq) || unlikely(!drq))
13250 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
13251 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
13253 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
13255 if ((phba->nvmet_support == 0) ||
13256 (rq_id != hrq->queue_id))
13259 status = bf_get(lpfc_rcqe_status, rcqe);
13261 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
13262 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13263 "6126 Receive Frame Truncated!!\n");
13265 case FC_STATUS_RQ_SUCCESS:
13266 lpfc_sli4_rq_release(hrq, drq);
13267 spin_lock_irqsave(&phba->hbalock, iflags);
13268 dma_buf = lpfc_sli_rqbuf_get(phba, hrq);
13270 hrq->RQ_no_buf_found++;
13271 spin_unlock_irqrestore(&phba->hbalock, iflags);
13274 spin_unlock_irqrestore(&phba->hbalock, iflags);
13276 hrq->RQ_buf_posted--;
13277 fc_hdr = (struct fc_frame_header *)dma_buf->hbuf.virt;
13279 /* Just some basic sanity checks on FCP Command frame */
13280 fctl = (fc_hdr->fh_f_ctl[0] << 16 |
13281 fc_hdr->fh_f_ctl[1] << 8 |
13282 fc_hdr->fh_f_ctl[2]);
13284 (FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT)) !=
13285 (FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT)) ||
13286 (fc_hdr->fh_seq_cnt != 0)) /* 0 byte swapped is still 0 */
13289 if (fc_hdr->fh_type == FC_TYPE_FCP) {
13290 dma_buf->bytes_recv = bf_get(lpfc_rcqe_length, rcqe);
13291 lpfc_nvmet_unsol_fcp_event(
13292 phba, phba->sli4_hba.els_wq->pring, dma_buf,
13293 cq->assoc_qp->isr_timestamp);
13297 lpfc_in_buf_free(phba, &dma_buf->dbuf);
13299 case FC_STATUS_INSUFF_BUF_FRM_DISC:
13300 if (phba->nvmet_support) {
13301 tgtp = phba->targetport->private;
13302 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_NVME,
13303 "6401 RQE Error x%x, posted %d err_cnt "
13305 status, hrq->RQ_buf_posted,
13306 hrq->RQ_no_posted_buf,
13307 atomic_read(&tgtp->rcv_fcp_cmd_in),
13308 atomic_read(&tgtp->rcv_fcp_cmd_out),
13309 atomic_read(&tgtp->xmt_fcp_release));
13313 case FC_STATUS_INSUFF_BUF_NEED_BUF:
13314 hrq->RQ_no_posted_buf++;
13315 /* Post more buffers if possible */
13323 * lpfc_sli4_fp_handle_cqe - Process fast-path work queue completion entry
13324 * @cq: Pointer to the completion queue.
13325 * @eqe: Pointer to fast-path completion queue entry.
13327 * This routine process a fast-path work queue completion entry from fast-path
13328 * event queue for FCP command response completion.
13331 lpfc_sli4_fp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13332 struct lpfc_cqe *cqe)
13334 struct lpfc_wcqe_release wcqe;
13335 bool workposted = false;
13337 /* Copy the work queue CQE and convert endian order if needed */
13338 lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
13340 /* Check and process for different type of WCQE and dispatch */
13341 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
13342 case CQE_CODE_COMPL_WQE:
13343 case CQE_CODE_NVME_ERSP:
13345 /* Process the WQ complete event */
13346 phba->last_completion_time = jiffies;
13347 if ((cq->subtype == LPFC_FCP) || (cq->subtype == LPFC_NVME))
13348 lpfc_sli4_fp_handle_fcp_wcqe(phba, cq,
13349 (struct lpfc_wcqe_complete *)&wcqe);
13350 if (cq->subtype == LPFC_NVME_LS)
13351 lpfc_sli4_fp_handle_fcp_wcqe(phba, cq,
13352 (struct lpfc_wcqe_complete *)&wcqe);
13354 case CQE_CODE_RELEASE_WQE:
13355 cq->CQ_release_wqe++;
13356 /* Process the WQ release event */
13357 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
13358 (struct lpfc_wcqe_release *)&wcqe);
13360 case CQE_CODE_XRI_ABORTED:
13361 cq->CQ_xri_aborted++;
13362 /* Process the WQ XRI abort event */
13363 phba->last_completion_time = jiffies;
13364 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
13365 (struct sli4_wcqe_xri_aborted *)&wcqe);
13367 case CQE_CODE_RECEIVE_V1:
13368 case CQE_CODE_RECEIVE:
13369 phba->last_completion_time = jiffies;
13370 if (cq->subtype == LPFC_NVMET) {
13371 workposted = lpfc_sli4_nvmet_handle_rcqe(
13372 phba, cq, (struct lpfc_rcqe *)&wcqe);
13376 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13377 "0144 Not a valid CQE code: x%x\n",
13378 bf_get(lpfc_wcqe_c_code, &wcqe));
13385 * lpfc_sli4_hba_handle_eqe - Process a fast-path event queue entry
13386 * @phba: Pointer to HBA context object.
13387 * @eqe: Pointer to fast-path event queue entry.
13389 * This routine process a event queue entry from the fast-path event queue.
13390 * It will check the MajorCode and MinorCode to determine this is for a
13391 * completion event on a completion queue, if not, an error shall be logged
13392 * and just return. Otherwise, it will get to the corresponding completion
13393 * queue and process all the entries on the completion queue, rearm the
13394 * completion queue, and then return.
13397 lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
13400 struct lpfc_queue *cq = NULL;
13401 struct lpfc_cqe *cqe;
13402 bool workposted = false;
13406 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
13407 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13408 "0366 Not a valid completion "
13409 "event: majorcode=x%x, minorcode=x%x\n",
13410 bf_get_le32(lpfc_eqe_major_code, eqe),
13411 bf_get_le32(lpfc_eqe_minor_code, eqe));
13415 /* Get the reference to the corresponding CQ */
13416 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
13418 if (phba->cfg_nvmet_mrq && phba->sli4_hba.nvmet_cqset) {
13419 id = phba->sli4_hba.nvmet_cqset[0]->queue_id;
13420 if ((cqid >= id) && (cqid < (id + phba->cfg_nvmet_mrq))) {
13421 /* Process NVMET unsol rcv */
13422 cq = phba->sli4_hba.nvmet_cqset[cqid - id];
13427 if (phba->sli4_hba.nvme_cq_map &&
13428 (cqid == phba->sli4_hba.nvme_cq_map[qidx])) {
13429 /* Process NVME / NVMET command completion */
13430 cq = phba->sli4_hba.nvme_cq[qidx];
13434 if (phba->sli4_hba.fcp_cq_map &&
13435 (cqid == phba->sli4_hba.fcp_cq_map[qidx])) {
13436 /* Process FCP command completion */
13437 cq = phba->sli4_hba.fcp_cq[qidx];
13441 if (phba->sli4_hba.nvmels_cq &&
13442 (cqid == phba->sli4_hba.nvmels_cq->queue_id)) {
13443 /* Process NVME unsol rcv */
13444 cq = phba->sli4_hba.nvmels_cq;
13447 /* Otherwise this is a Slow path event */
13449 lpfc_sli4_sp_handle_eqe(phba, eqe, phba->sli4_hba.hba_eq[qidx]);
13454 if (unlikely(cqid != cq->queue_id)) {
13455 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13456 "0368 Miss-matched fast-path completion "
13457 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
13458 cqid, cq->queue_id);
13462 /* Save EQ associated with this CQ */
13463 cq->assoc_qp = phba->sli4_hba.hba_eq[qidx];
13465 /* Process all the entries to the CQ */
13466 while ((cqe = lpfc_sli4_cq_get(cq))) {
13467 workposted |= lpfc_sli4_fp_handle_cqe(phba, cq, cqe);
13468 if (!(++ecount % cq->entry_repost))
13472 /* Track the max number of CQEs processed in 1 EQ */
13473 if (ecount > cq->CQ_max_cqe)
13474 cq->CQ_max_cqe = ecount;
13475 cq->assoc_qp->EQ_cqe_cnt += ecount;
13477 /* Catch the no cq entry condition */
13478 if (unlikely(ecount == 0))
13479 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13480 "0369 No entry from fast-path completion "
13481 "queue fcpcqid=%d\n", cq->queue_id);
13483 /* In any case, flash and re-arm the CQ */
13484 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
13486 /* wake up worker thread if there are works to be done */
13488 lpfc_worker_wake_up(phba);
13492 lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
13494 struct lpfc_eqe *eqe;
13496 /* walk all the EQ entries and drop on the floor */
13497 while ((eqe = lpfc_sli4_eq_get(eq)))
13500 /* Clear and re-arm the EQ */
13501 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
13506 * lpfc_sli4_fof_handle_eqe - Process a Flash Optimized Fabric event queue
13508 * @phba: Pointer to HBA context object.
13509 * @eqe: Pointer to fast-path event queue entry.
13511 * This routine process a event queue entry from the Flash Optimized Fabric
13512 * event queue. It will check the MajorCode and MinorCode to determine this
13513 * is for a completion event on a completion queue, if not, an error shall be
13514 * logged and just return. Otherwise, it will get to the corresponding
13515 * completion queue and process all the entries on the completion queue, rearm
13516 * the completion queue, and then return.
13519 lpfc_sli4_fof_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe)
13521 struct lpfc_queue *cq;
13522 struct lpfc_cqe *cqe;
13523 bool workposted = false;
13527 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
13528 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13529 "9147 Not a valid completion "
13530 "event: majorcode=x%x, minorcode=x%x\n",
13531 bf_get_le32(lpfc_eqe_major_code, eqe),
13532 bf_get_le32(lpfc_eqe_minor_code, eqe));
13536 /* Get the reference to the corresponding CQ */
13537 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
13539 /* Next check for OAS */
13540 cq = phba->sli4_hba.oas_cq;
13541 if (unlikely(!cq)) {
13542 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
13543 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13544 "9148 OAS completion queue "
13545 "does not exist\n");
13549 if (unlikely(cqid != cq->queue_id)) {
13550 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13551 "9149 Miss-matched fast-path compl "
13552 "queue id: eqcqid=%d, fcpcqid=%d\n",
13553 cqid, cq->queue_id);
13557 /* Save EQ associated with this CQ */
13558 cq->assoc_qp = phba->sli4_hba.fof_eq;
13560 /* Process all the entries to the OAS CQ */
13561 while ((cqe = lpfc_sli4_cq_get(cq))) {
13562 workposted |= lpfc_sli4_fp_handle_cqe(phba, cq, cqe);
13563 if (!(++ecount % cq->entry_repost))
13567 /* Track the max number of CQEs processed in 1 EQ */
13568 if (ecount > cq->CQ_max_cqe)
13569 cq->CQ_max_cqe = ecount;
13570 cq->assoc_qp->EQ_cqe_cnt += ecount;
13572 /* Catch the no cq entry condition */
13573 if (unlikely(ecount == 0))
13574 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13575 "9153 No entry from fast-path completion "
13576 "queue fcpcqid=%d\n", cq->queue_id);
13578 /* In any case, flash and re-arm the CQ */
13579 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
13581 /* wake up worker thread if there are works to be done */
13583 lpfc_worker_wake_up(phba);
13587 * lpfc_sli4_fof_intr_handler - HBA interrupt handler to SLI-4 device
13588 * @irq: Interrupt number.
13589 * @dev_id: The device context pointer.
13591 * This function is directly called from the PCI layer as an interrupt
13592 * service routine when device with SLI-4 interface spec is enabled with
13593 * MSI-X multi-message interrupt mode and there is a Flash Optimized Fabric
13594 * IOCB ring event in the HBA. However, when the device is enabled with either
13595 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
13596 * device-level interrupt handler. When the PCI slot is in error recovery
13597 * or the HBA is undergoing initialization, the interrupt handler will not
13598 * process the interrupt. The Flash Optimized Fabric ring event are handled in
13599 * the intrrupt context. This function is called without any lock held.
13600 * It gets the hbalock to access and update SLI data structures. Note that,
13601 * the EQ to CQ are one-to-one map such that the EQ index is
13602 * equal to that of CQ index.
13604 * This function returns IRQ_HANDLED when interrupt is handled else it
13605 * returns IRQ_NONE.
13608 lpfc_sli4_fof_intr_handler(int irq, void *dev_id)
13610 struct lpfc_hba *phba;
13611 struct lpfc_hba_eq_hdl *hba_eq_hdl;
13612 struct lpfc_queue *eq;
13613 struct lpfc_eqe *eqe;
13614 unsigned long iflag;
13617 /* Get the driver's phba structure from the dev_id */
13618 hba_eq_hdl = (struct lpfc_hba_eq_hdl *)dev_id;
13619 phba = hba_eq_hdl->phba;
13621 if (unlikely(!phba))
13624 /* Get to the EQ struct associated with this vector */
13625 eq = phba->sli4_hba.fof_eq;
13629 /* Check device state for handling interrupt */
13630 if (unlikely(lpfc_intr_state_check(phba))) {
13631 /* Check again for link_state with lock held */
13632 spin_lock_irqsave(&phba->hbalock, iflag);
13633 if (phba->link_state < LPFC_LINK_DOWN)
13634 /* Flush, clear interrupt, and rearm the EQ */
13635 lpfc_sli4_eq_flush(phba, eq);
13636 spin_unlock_irqrestore(&phba->hbalock, iflag);
13641 * Process all the event on FCP fast-path EQ
13643 while ((eqe = lpfc_sli4_eq_get(eq))) {
13644 lpfc_sli4_fof_handle_eqe(phba, eqe);
13645 if (!(++ecount % eq->entry_repost))
13647 eq->EQ_processed++;
13650 /* Track the max number of EQEs processed in 1 intr */
13651 if (ecount > eq->EQ_max_eqe)
13652 eq->EQ_max_eqe = ecount;
13655 if (unlikely(ecount == 0)) {
13658 if (phba->intr_type == MSIX)
13659 /* MSI-X treated interrupt served as no EQ share INT */
13660 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13661 "9145 MSI-X interrupt with no EQE\n");
13663 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13664 "9146 ISR interrupt with no EQE\n");
13665 /* Non MSI-X treated on interrupt as EQ share INT */
13669 /* Always clear and re-arm the fast-path EQ */
13670 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
13671 return IRQ_HANDLED;
13675 * lpfc_sli4_hba_intr_handler - HBA interrupt handler to SLI-4 device
13676 * @irq: Interrupt number.
13677 * @dev_id: The device context pointer.
13679 * This function is directly called from the PCI layer as an interrupt
13680 * service routine when device with SLI-4 interface spec is enabled with
13681 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
13682 * ring event in the HBA. However, when the device is enabled with either
13683 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
13684 * device-level interrupt handler. When the PCI slot is in error recovery
13685 * or the HBA is undergoing initialization, the interrupt handler will not
13686 * process the interrupt. The SCSI FCP fast-path ring event are handled in
13687 * the intrrupt context. This function is called without any lock held.
13688 * It gets the hbalock to access and update SLI data structures. Note that,
13689 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
13690 * equal to that of FCP CQ index.
13692 * The link attention and ELS ring attention events are handled
13693 * by the worker thread. The interrupt handler signals the worker thread
13694 * and returns for these events. This function is called without any lock
13695 * held. It gets the hbalock to access and update SLI data structures.
13697 * This function returns IRQ_HANDLED when interrupt is handled else it
13698 * returns IRQ_NONE.
13701 lpfc_sli4_hba_intr_handler(int irq, void *dev_id)
13703 struct lpfc_hba *phba;
13704 struct lpfc_hba_eq_hdl *hba_eq_hdl;
13705 struct lpfc_queue *fpeq;
13706 struct lpfc_eqe *eqe;
13707 unsigned long iflag;
13711 /* Get the driver's phba structure from the dev_id */
13712 hba_eq_hdl = (struct lpfc_hba_eq_hdl *)dev_id;
13713 phba = hba_eq_hdl->phba;
13714 hba_eqidx = hba_eq_hdl->idx;
13716 if (unlikely(!phba))
13718 if (unlikely(!phba->sli4_hba.hba_eq))
13721 /* Get to the EQ struct associated with this vector */
13722 fpeq = phba->sli4_hba.hba_eq[hba_eqidx];
13723 if (unlikely(!fpeq))
13726 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
13727 if (phba->ktime_on)
13728 fpeq->isr_timestamp = ktime_get_ns();
13731 if (lpfc_fcp_look_ahead) {
13732 if (atomic_dec_and_test(&hba_eq_hdl->hba_eq_in_use))
13733 lpfc_sli4_eq_clr_intr(fpeq);
13735 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
13740 /* Check device state for handling interrupt */
13741 if (unlikely(lpfc_intr_state_check(phba))) {
13742 /* Check again for link_state with lock held */
13743 spin_lock_irqsave(&phba->hbalock, iflag);
13744 if (phba->link_state < LPFC_LINK_DOWN)
13745 /* Flush, clear interrupt, and rearm the EQ */
13746 lpfc_sli4_eq_flush(phba, fpeq);
13747 spin_unlock_irqrestore(&phba->hbalock, iflag);
13748 if (lpfc_fcp_look_ahead)
13749 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
13754 * Process all the event on FCP fast-path EQ
13756 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
13760 lpfc_sli4_hba_handle_eqe(phba, eqe, hba_eqidx);
13761 if (!(++ecount % fpeq->entry_repost))
13763 fpeq->EQ_processed++;
13766 /* Track the max number of EQEs processed in 1 intr */
13767 if (ecount > fpeq->EQ_max_eqe)
13768 fpeq->EQ_max_eqe = ecount;
13770 /* Always clear and re-arm the fast-path EQ */
13771 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
13773 if (unlikely(ecount == 0)) {
13774 fpeq->EQ_no_entry++;
13776 if (lpfc_fcp_look_ahead) {
13777 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
13781 if (phba->intr_type == MSIX)
13782 /* MSI-X treated interrupt served as no EQ share INT */
13783 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13784 "0358 MSI-X interrupt with no EQE\n");
13786 /* Non MSI-X treated on interrupt as EQ share INT */
13790 if (lpfc_fcp_look_ahead)
13791 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
13793 return IRQ_HANDLED;
13794 } /* lpfc_sli4_fp_intr_handler */
13797 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
13798 * @irq: Interrupt number.
13799 * @dev_id: The device context pointer.
13801 * This function is the device-level interrupt handler to device with SLI-4
13802 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
13803 * interrupt mode is enabled and there is an event in the HBA which requires
13804 * driver attention. This function invokes the slow-path interrupt attention
13805 * handling function and fast-path interrupt attention handling function in
13806 * turn to process the relevant HBA attention events. This function is called
13807 * without any lock held. It gets the hbalock to access and update SLI data
13810 * This function returns IRQ_HANDLED when interrupt is handled, else it
13811 * returns IRQ_NONE.
13814 lpfc_sli4_intr_handler(int irq, void *dev_id)
13816 struct lpfc_hba *phba;
13817 irqreturn_t hba_irq_rc;
13818 bool hba_handled = false;
13821 /* Get the driver's phba structure from the dev_id */
13822 phba = (struct lpfc_hba *)dev_id;
13824 if (unlikely(!phba))
13828 * Invoke fast-path host attention interrupt handling as appropriate.
13830 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++) {
13831 hba_irq_rc = lpfc_sli4_hba_intr_handler(irq,
13832 &phba->sli4_hba.hba_eq_hdl[qidx]);
13833 if (hba_irq_rc == IRQ_HANDLED)
13834 hba_handled |= true;
13837 if (phba->cfg_fof) {
13838 hba_irq_rc = lpfc_sli4_fof_intr_handler(irq,
13839 &phba->sli4_hba.hba_eq_hdl[qidx]);
13840 if (hba_irq_rc == IRQ_HANDLED)
13841 hba_handled |= true;
13844 return (hba_handled == true) ? IRQ_HANDLED : IRQ_NONE;
13845 } /* lpfc_sli4_intr_handler */
13848 * lpfc_sli4_queue_free - free a queue structure and associated memory
13849 * @queue: The queue structure to free.
13851 * This function frees a queue structure and the DMAable memory used for
13852 * the host resident queue. This function must be called after destroying the
13853 * queue on the HBA.
13856 lpfc_sli4_queue_free(struct lpfc_queue *queue)
13858 struct lpfc_dmabuf *dmabuf;
13863 while (!list_empty(&queue->page_list)) {
13864 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
13866 dma_free_coherent(&queue->phba->pcidev->dev, SLI4_PAGE_SIZE,
13867 dmabuf->virt, dmabuf->phys);
13871 lpfc_free_rq_buffer(queue->phba, queue);
13872 kfree(queue->rqbp);
13875 if (!list_empty(&queue->wq_list))
13876 list_del(&queue->wq_list);
13883 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
13884 * @phba: The HBA that this queue is being created on.
13885 * @entry_size: The size of each queue entry for this queue.
13886 * @entry count: The number of entries that this queue will handle.
13888 * This function allocates a queue structure and the DMAable memory used for
13889 * the host resident queue. This function must be called before creating the
13890 * queue on the HBA.
13892 struct lpfc_queue *
13893 lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size,
13894 uint32_t entry_count)
13896 struct lpfc_queue *queue;
13897 struct lpfc_dmabuf *dmabuf;
13898 int x, total_qe_count;
13900 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
13902 if (!phba->sli4_hba.pc_sli4_params.supported)
13903 hw_page_size = SLI4_PAGE_SIZE;
13905 queue = kzalloc(sizeof(struct lpfc_queue) +
13906 (sizeof(union sli4_qe) * entry_count), GFP_KERNEL);
13909 queue->page_count = (ALIGN(entry_size * entry_count,
13910 hw_page_size))/hw_page_size;
13912 /* If needed, Adjust page count to match the max the adapter supports */
13913 if (queue->page_count > phba->sli4_hba.pc_sli4_params.wqpcnt)
13914 queue->page_count = phba->sli4_hba.pc_sli4_params.wqpcnt;
13916 INIT_LIST_HEAD(&queue->list);
13917 INIT_LIST_HEAD(&queue->wq_list);
13918 INIT_LIST_HEAD(&queue->page_list);
13919 INIT_LIST_HEAD(&queue->child_list);
13920 for (x = 0, total_qe_count = 0; x < queue->page_count; x++) {
13921 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
13924 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
13925 hw_page_size, &dmabuf->phys,
13927 if (!dmabuf->virt) {
13931 dmabuf->buffer_tag = x;
13932 list_add_tail(&dmabuf->list, &queue->page_list);
13933 /* initialize queue's entry array */
13934 dma_pointer = dmabuf->virt;
13935 for (; total_qe_count < entry_count &&
13936 dma_pointer < (hw_page_size + dmabuf->virt);
13937 total_qe_count++, dma_pointer += entry_size) {
13938 queue->qe[total_qe_count].address = dma_pointer;
13941 queue->entry_size = entry_size;
13942 queue->entry_count = entry_count;
13943 queue->phba = phba;
13945 /* entry_repost will be set during q creation */
13949 lpfc_sli4_queue_free(queue);
13954 * lpfc_dual_chute_pci_bar_map - Map pci base address register to host memory
13955 * @phba: HBA structure that indicates port to create a queue on.
13956 * @pci_barset: PCI BAR set flag.
13958 * This function shall perform iomap of the specified PCI BAR address to host
13959 * memory address if not already done so and return it. The returned host
13960 * memory address can be NULL.
13962 static void __iomem *
13963 lpfc_dual_chute_pci_bar_map(struct lpfc_hba *phba, uint16_t pci_barset)
13968 switch (pci_barset) {
13969 case WQ_PCI_BAR_0_AND_1:
13970 return phba->pci_bar0_memmap_p;
13971 case WQ_PCI_BAR_2_AND_3:
13972 return phba->pci_bar2_memmap_p;
13973 case WQ_PCI_BAR_4_AND_5:
13974 return phba->pci_bar4_memmap_p;
13982 * lpfc_modify_hba_eq_delay - Modify Delay Multiplier on FCP EQs
13983 * @phba: HBA structure that indicates port to create a queue on.
13984 * @startq: The starting FCP EQ to modify
13986 * This function sends an MODIFY_EQ_DELAY mailbox command to the HBA.
13987 * The command allows up to LPFC_MAX_EQ_DELAY_EQID_CNT EQ ID's to be
13988 * updated in one mailbox command.
13990 * The @phba struct is used to send mailbox command to HBA. The @startq
13991 * is used to get the starting FCP EQ to change.
13992 * This function is asynchronous and will wait for the mailbox
13993 * command to finish before continuing.
13995 * On success this function will return a zero. If unable to allocate enough
13996 * memory this function will return -ENOMEM. If the queue create mailbox command
13997 * fails this function will return -ENXIO.
14000 lpfc_modify_hba_eq_delay(struct lpfc_hba *phba, uint32_t startq,
14001 uint32_t numq, uint32_t imax)
14003 struct lpfc_mbx_modify_eq_delay *eq_delay;
14004 LPFC_MBOXQ_t *mbox;
14005 struct lpfc_queue *eq;
14006 int cnt, rc, length, status = 0;
14007 uint32_t shdr_status, shdr_add_status;
14008 uint32_t result, val;
14010 union lpfc_sli4_cfg_shdr *shdr;
14013 if (startq >= phba->io_channel_irqs)
14016 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14019 length = (sizeof(struct lpfc_mbx_modify_eq_delay) -
14020 sizeof(struct lpfc_sli4_cfg_mhdr));
14021 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14022 LPFC_MBOX_OPCODE_MODIFY_EQ_DELAY,
14023 length, LPFC_SLI4_MBX_EMBED);
14024 eq_delay = &mbox->u.mqe.un.eq_delay;
14026 /* Calculate delay multiper from maximum interrupt per second */
14027 result = imax / phba->io_channel_irqs;
14028 if (result > LPFC_DMULT_CONST || result == 0)
14031 dmult = LPFC_DMULT_CONST/result - 1;
14032 if (dmult > LPFC_DMULT_MAX)
14033 dmult = LPFC_DMULT_MAX;
14036 for (qidx = startq; qidx < phba->io_channel_irqs; qidx++) {
14037 eq = phba->sli4_hba.hba_eq[qidx];
14041 eq_delay->u.request.eq[cnt].eq_id = eq->queue_id;
14042 eq_delay->u.request.eq[cnt].phase = 0;
14043 eq_delay->u.request.eq[cnt].delay_multi = dmult;
14046 /* q_mode is only used for auto_imax */
14047 if (phba->sli.sli_flag & LPFC_SLI_USE_EQDR) {
14048 /* Use EQ Delay Register method for q_mode */
14050 /* Convert for EQ Delay register */
14051 val = phba->cfg_fcp_imax;
14053 /* First, interrupts per sec per EQ */
14054 val = phba->cfg_fcp_imax /
14055 phba->io_channel_irqs;
14057 /* us delay between each interrupt */
14058 val = LPFC_SEC_TO_USEC / val;
14068 eq_delay->u.request.num_eq = cnt;
14070 mbox->vport = phba->pport;
14071 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14072 mbox->context1 = NULL;
14073 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14074 shdr = (union lpfc_sli4_cfg_shdr *) &eq_delay->header.cfg_shdr;
14075 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14076 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14077 if (shdr_status || shdr_add_status || rc) {
14078 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14079 "2512 MODIFY_EQ_DELAY mailbox failed with "
14080 "status x%x add_status x%x, mbx status x%x\n",
14081 shdr_status, shdr_add_status, rc);
14084 mempool_free(mbox, phba->mbox_mem_pool);
14089 * lpfc_eq_create - Create an Event Queue on the HBA
14090 * @phba: HBA structure that indicates port to create a queue on.
14091 * @eq: The queue structure to use to create the event queue.
14092 * @imax: The maximum interrupt per second limit.
14094 * This function creates an event queue, as detailed in @eq, on a port,
14095 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
14097 * The @phba struct is used to send mailbox command to HBA. The @eq struct
14098 * is used to get the entry count and entry size that are necessary to
14099 * determine the number of pages to allocate and use for this queue. This
14100 * function will send the EQ_CREATE mailbox command to the HBA to setup the
14101 * event queue. This function is asynchronous and will wait for the mailbox
14102 * command to finish before continuing.
14104 * On success this function will return a zero. If unable to allocate enough
14105 * memory this function will return -ENOMEM. If the queue create mailbox command
14106 * fails this function will return -ENXIO.
14109 lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint32_t imax)
14111 struct lpfc_mbx_eq_create *eq_create;
14112 LPFC_MBOXQ_t *mbox;
14113 int rc, length, status = 0;
14114 struct lpfc_dmabuf *dmabuf;
14115 uint32_t shdr_status, shdr_add_status;
14116 union lpfc_sli4_cfg_shdr *shdr;
14118 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
14120 /* sanity check on queue memory */
14123 if (!phba->sli4_hba.pc_sli4_params.supported)
14124 hw_page_size = SLI4_PAGE_SIZE;
14126 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14129 length = (sizeof(struct lpfc_mbx_eq_create) -
14130 sizeof(struct lpfc_sli4_cfg_mhdr));
14131 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14132 LPFC_MBOX_OPCODE_EQ_CREATE,
14133 length, LPFC_SLI4_MBX_EMBED);
14134 eq_create = &mbox->u.mqe.un.eq_create;
14135 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
14137 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
14139 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
14140 /* don't setup delay multiplier using EQ_CREATE */
14142 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
14144 switch (eq->entry_count) {
14146 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14147 "0360 Unsupported EQ count. (%d)\n",
14149 if (eq->entry_count < 256)
14151 /* otherwise default to smallest count (drop through) */
14153 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14157 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14161 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14165 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14169 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14173 list_for_each_entry(dmabuf, &eq->page_list, list) {
14174 memset(dmabuf->virt, 0, hw_page_size);
14175 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
14176 putPaddrLow(dmabuf->phys);
14177 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
14178 putPaddrHigh(dmabuf->phys);
14180 mbox->vport = phba->pport;
14181 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14182 mbox->context1 = NULL;
14183 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14184 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
14185 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14186 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14187 if (shdr_status || shdr_add_status || rc) {
14188 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14189 "2500 EQ_CREATE mailbox failed with "
14190 "status x%x add_status x%x, mbx status x%x\n",
14191 shdr_status, shdr_add_status, rc);
14194 eq->type = LPFC_EQ;
14195 eq->subtype = LPFC_NONE;
14196 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
14197 if (eq->queue_id == 0xFFFF)
14199 eq->host_index = 0;
14201 eq->entry_repost = LPFC_EQ_REPOST;
14203 mempool_free(mbox, phba->mbox_mem_pool);
14208 * lpfc_cq_create - Create a Completion Queue on the HBA
14209 * @phba: HBA structure that indicates port to create a queue on.
14210 * @cq: The queue structure to use to create the completion queue.
14211 * @eq: The event queue to bind this completion queue to.
14213 * This function creates a completion queue, as detailed in @wq, on a port,
14214 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
14216 * The @phba struct is used to send mailbox command to HBA. The @cq struct
14217 * is used to get the entry count and entry size that are necessary to
14218 * determine the number of pages to allocate and use for this queue. The @eq
14219 * is used to indicate which event queue to bind this completion queue to. This
14220 * function will send the CQ_CREATE mailbox command to the HBA to setup the
14221 * completion queue. This function is asynchronous and will wait for the mailbox
14222 * command to finish before continuing.
14224 * On success this function will return a zero. If unable to allocate enough
14225 * memory this function will return -ENOMEM. If the queue create mailbox command
14226 * fails this function will return -ENXIO.
14229 lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
14230 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
14232 struct lpfc_mbx_cq_create *cq_create;
14233 struct lpfc_dmabuf *dmabuf;
14234 LPFC_MBOXQ_t *mbox;
14235 int rc, length, status = 0;
14236 uint32_t shdr_status, shdr_add_status;
14237 union lpfc_sli4_cfg_shdr *shdr;
14238 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
14240 /* sanity check on queue memory */
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);
14249 length = (sizeof(struct lpfc_mbx_cq_create) -
14250 sizeof(struct lpfc_sli4_cfg_mhdr));
14251 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14252 LPFC_MBOX_OPCODE_CQ_CREATE,
14253 length, LPFC_SLI4_MBX_EMBED);
14254 cq_create = &mbox->u.mqe.un.cq_create;
14255 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
14256 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
14258 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
14259 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
14260 bf_set(lpfc_mbox_hdr_version, &shdr->request,
14261 phba->sli4_hba.pc_sli4_params.cqv);
14262 if (phba->sli4_hba.pc_sli4_params.cqv == LPFC_Q_CREATE_VERSION_2) {
14263 /* FW only supports 1. Should be PAGE_SIZE/SLI4_PAGE_SIZE */
14264 bf_set(lpfc_mbx_cq_create_page_size, &cq_create->u.request, 1);
14265 bf_set(lpfc_cq_eq_id_2, &cq_create->u.request.context,
14268 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context,
14271 switch (cq->entry_count) {
14273 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14274 "0361 Unsupported CQ count: "
14275 "entry cnt %d sz %d pg cnt %d\n",
14276 cq->entry_count, cq->entry_size,
14278 if (cq->entry_count < 256) {
14282 /* otherwise default to smallest count (drop through) */
14284 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
14288 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
14292 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
14296 list_for_each_entry(dmabuf, &cq->page_list, list) {
14297 memset(dmabuf->virt, 0, hw_page_size);
14298 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
14299 putPaddrLow(dmabuf->phys);
14300 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
14301 putPaddrHigh(dmabuf->phys);
14303 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14305 /* The IOCTL status is embedded in the mailbox subheader. */
14306 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14307 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14308 if (shdr_status || shdr_add_status || rc) {
14309 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14310 "2501 CQ_CREATE mailbox failed with "
14311 "status x%x add_status x%x, mbx status x%x\n",
14312 shdr_status, shdr_add_status, rc);
14316 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
14317 if (cq->queue_id == 0xFFFF) {
14321 /* link the cq onto the parent eq child list */
14322 list_add_tail(&cq->list, &eq->child_list);
14323 /* Set up completion queue's type and subtype */
14325 cq->subtype = subtype;
14326 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
14327 cq->assoc_qid = eq->queue_id;
14328 cq->host_index = 0;
14330 cq->entry_repost = LPFC_CQ_REPOST;
14333 mempool_free(mbox, phba->mbox_mem_pool);
14338 * lpfc_cq_create_set - Create a set of Completion Queues on the HBA for MRQ
14339 * @phba: HBA structure that indicates port to create a queue on.
14340 * @cqp: The queue structure array to use to create the completion queues.
14341 * @eqp: The event queue array to bind these completion queues to.
14343 * This function creates a set of completion queue, s to support MRQ
14344 * as detailed in @cqp, on a port,
14345 * described by @phba by sending a CREATE_CQ_SET mailbox command to the HBA.
14347 * The @phba struct is used to send mailbox command to HBA. The @cq struct
14348 * is used to get the entry count and entry size that are necessary to
14349 * determine the number of pages to allocate and use for this queue. The @eq
14350 * is used to indicate which event queue to bind this completion queue to. This
14351 * function will send the CREATE_CQ_SET mailbox command to the HBA to setup the
14352 * completion queue. This function is asynchronous and will wait for the mailbox
14353 * command to finish before continuing.
14355 * On success this function will return a zero. If unable to allocate enough
14356 * memory this function will return -ENOMEM. If the queue create mailbox command
14357 * fails this function will return -ENXIO.
14360 lpfc_cq_create_set(struct lpfc_hba *phba, struct lpfc_queue **cqp,
14361 struct lpfc_queue **eqp, uint32_t type, uint32_t subtype)
14363 struct lpfc_queue *cq;
14364 struct lpfc_queue *eq;
14365 struct lpfc_mbx_cq_create_set *cq_set;
14366 struct lpfc_dmabuf *dmabuf;
14367 LPFC_MBOXQ_t *mbox;
14368 int rc, length, alloclen, status = 0;
14369 int cnt, idx, numcq, page_idx = 0;
14370 uint32_t shdr_status, shdr_add_status;
14371 union lpfc_sli4_cfg_shdr *shdr;
14372 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
14374 /* sanity check on queue memory */
14375 numcq = phba->cfg_nvmet_mrq;
14376 if (!cqp || !eqp || !numcq)
14378 if (!phba->sli4_hba.pc_sli4_params.supported)
14379 hw_page_size = SLI4_PAGE_SIZE;
14381 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14385 length = sizeof(struct lpfc_mbx_cq_create_set);
14386 length += ((numcq * cqp[0]->page_count) *
14387 sizeof(struct dma_address));
14388 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14389 LPFC_MBOX_OPCODE_FCOE_CQ_CREATE_SET, length,
14390 LPFC_SLI4_MBX_NEMBED);
14391 if (alloclen < length) {
14392 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14393 "3098 Allocated DMA memory size (%d) is "
14394 "less than the requested DMA memory size "
14395 "(%d)\n", alloclen, length);
14399 cq_set = mbox->sge_array->addr[0];
14400 shdr = (union lpfc_sli4_cfg_shdr *)&cq_set->cfg_shdr;
14401 bf_set(lpfc_mbox_hdr_version, &shdr->request, 0);
14403 for (idx = 0; idx < numcq; idx++) {
14413 bf_set(lpfc_mbx_cq_create_set_page_size,
14414 &cq_set->u.request,
14415 (hw_page_size / SLI4_PAGE_SIZE));
14416 bf_set(lpfc_mbx_cq_create_set_num_pages,
14417 &cq_set->u.request, cq->page_count);
14418 bf_set(lpfc_mbx_cq_create_set_evt,
14419 &cq_set->u.request, 1);
14420 bf_set(lpfc_mbx_cq_create_set_valid,
14421 &cq_set->u.request, 1);
14422 bf_set(lpfc_mbx_cq_create_set_cqe_size,
14423 &cq_set->u.request, 0);
14424 bf_set(lpfc_mbx_cq_create_set_num_cq,
14425 &cq_set->u.request, numcq);
14426 switch (cq->entry_count) {
14428 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14429 "3118 Bad CQ count. (%d)\n",
14431 if (cq->entry_count < 256) {
14435 /* otherwise default to smallest (drop thru) */
14437 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
14438 &cq_set->u.request, LPFC_CQ_CNT_256);
14441 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
14442 &cq_set->u.request, LPFC_CQ_CNT_512);
14445 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
14446 &cq_set->u.request, LPFC_CQ_CNT_1024);
14449 bf_set(lpfc_mbx_cq_create_set_eq_id0,
14450 &cq_set->u.request, eq->queue_id);
14453 bf_set(lpfc_mbx_cq_create_set_eq_id1,
14454 &cq_set->u.request, eq->queue_id);
14457 bf_set(lpfc_mbx_cq_create_set_eq_id2,
14458 &cq_set->u.request, eq->queue_id);
14461 bf_set(lpfc_mbx_cq_create_set_eq_id3,
14462 &cq_set->u.request, eq->queue_id);
14465 bf_set(lpfc_mbx_cq_create_set_eq_id4,
14466 &cq_set->u.request, eq->queue_id);
14469 bf_set(lpfc_mbx_cq_create_set_eq_id5,
14470 &cq_set->u.request, eq->queue_id);
14473 bf_set(lpfc_mbx_cq_create_set_eq_id6,
14474 &cq_set->u.request, eq->queue_id);
14477 bf_set(lpfc_mbx_cq_create_set_eq_id7,
14478 &cq_set->u.request, eq->queue_id);
14481 bf_set(lpfc_mbx_cq_create_set_eq_id8,
14482 &cq_set->u.request, eq->queue_id);
14485 bf_set(lpfc_mbx_cq_create_set_eq_id9,
14486 &cq_set->u.request, eq->queue_id);
14489 bf_set(lpfc_mbx_cq_create_set_eq_id10,
14490 &cq_set->u.request, eq->queue_id);
14493 bf_set(lpfc_mbx_cq_create_set_eq_id11,
14494 &cq_set->u.request, eq->queue_id);
14497 bf_set(lpfc_mbx_cq_create_set_eq_id12,
14498 &cq_set->u.request, eq->queue_id);
14501 bf_set(lpfc_mbx_cq_create_set_eq_id13,
14502 &cq_set->u.request, eq->queue_id);
14505 bf_set(lpfc_mbx_cq_create_set_eq_id14,
14506 &cq_set->u.request, eq->queue_id);
14509 bf_set(lpfc_mbx_cq_create_set_eq_id15,
14510 &cq_set->u.request, eq->queue_id);
14514 /* link the cq onto the parent eq child list */
14515 list_add_tail(&cq->list, &eq->child_list);
14516 /* Set up completion queue's type and subtype */
14518 cq->subtype = subtype;
14519 cq->assoc_qid = eq->queue_id;
14520 cq->host_index = 0;
14522 cq->entry_repost = LPFC_CQ_REPOST;
14525 list_for_each_entry(dmabuf, &cq->page_list, list) {
14526 memset(dmabuf->virt, 0, hw_page_size);
14527 cnt = page_idx + dmabuf->buffer_tag;
14528 cq_set->u.request.page[cnt].addr_lo =
14529 putPaddrLow(dmabuf->phys);
14530 cq_set->u.request.page[cnt].addr_hi =
14531 putPaddrHigh(dmabuf->phys);
14537 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14539 /* The IOCTL status is embedded in the mailbox subheader. */
14540 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14541 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14542 if (shdr_status || shdr_add_status || rc) {
14543 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14544 "3119 CQ_CREATE_SET mailbox failed with "
14545 "status x%x add_status x%x, mbx status x%x\n",
14546 shdr_status, shdr_add_status, rc);
14550 rc = bf_get(lpfc_mbx_cq_create_set_base_id, &cq_set->u.response);
14551 if (rc == 0xFFFF) {
14556 for (idx = 0; idx < numcq; idx++) {
14558 cq->queue_id = rc + idx;
14562 lpfc_sli4_mbox_cmd_free(phba, mbox);
14567 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
14568 * @phba: HBA structure that indicates port to create a queue on.
14569 * @mq: The queue structure to use to create the mailbox queue.
14570 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
14571 * @cq: The completion queue to associate with this cq.
14573 * This function provides failback (fb) functionality when the
14574 * mq_create_ext fails on older FW generations. It's purpose is identical
14575 * to mq_create_ext otherwise.
14577 * This routine cannot fail as all attributes were previously accessed and
14578 * initialized in mq_create_ext.
14581 lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq,
14582 LPFC_MBOXQ_t *mbox, struct lpfc_queue *cq)
14584 struct lpfc_mbx_mq_create *mq_create;
14585 struct lpfc_dmabuf *dmabuf;
14588 length = (sizeof(struct lpfc_mbx_mq_create) -
14589 sizeof(struct lpfc_sli4_cfg_mhdr));
14590 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14591 LPFC_MBOX_OPCODE_MQ_CREATE,
14592 length, LPFC_SLI4_MBX_EMBED);
14593 mq_create = &mbox->u.mqe.un.mq_create;
14594 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
14596 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
14598 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
14599 switch (mq->entry_count) {
14601 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
14602 LPFC_MQ_RING_SIZE_16);
14605 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
14606 LPFC_MQ_RING_SIZE_32);
14609 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
14610 LPFC_MQ_RING_SIZE_64);
14613 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
14614 LPFC_MQ_RING_SIZE_128);
14617 list_for_each_entry(dmabuf, &mq->page_list, list) {
14618 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
14619 putPaddrLow(dmabuf->phys);
14620 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
14621 putPaddrHigh(dmabuf->phys);
14626 * lpfc_mq_create - Create a mailbox Queue on the HBA
14627 * @phba: HBA structure that indicates port to create a queue on.
14628 * @mq: The queue structure to use to create the mailbox queue.
14629 * @cq: The completion queue to associate with this cq.
14630 * @subtype: The queue's subtype.
14632 * This function creates a mailbox queue, as detailed in @mq, on a port,
14633 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
14635 * The @phba struct is used to send mailbox command to HBA. The @cq struct
14636 * is used to get the entry count and entry size that are necessary to
14637 * determine the number of pages to allocate and use for this queue. This
14638 * function will send the MQ_CREATE mailbox command to the HBA to setup the
14639 * mailbox queue. This function is asynchronous and will wait for the mailbox
14640 * command to finish before continuing.
14642 * On success this function will return a zero. If unable to allocate enough
14643 * memory this function will return -ENOMEM. If the queue create mailbox command
14644 * fails this function will return -ENXIO.
14647 lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
14648 struct lpfc_queue *cq, uint32_t subtype)
14650 struct lpfc_mbx_mq_create *mq_create;
14651 struct lpfc_mbx_mq_create_ext *mq_create_ext;
14652 struct lpfc_dmabuf *dmabuf;
14653 LPFC_MBOXQ_t *mbox;
14654 int rc, length, status = 0;
14655 uint32_t shdr_status, shdr_add_status;
14656 union lpfc_sli4_cfg_shdr *shdr;
14657 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
14659 /* sanity check on queue memory */
14662 if (!phba->sli4_hba.pc_sli4_params.supported)
14663 hw_page_size = SLI4_PAGE_SIZE;
14665 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14668 length = (sizeof(struct lpfc_mbx_mq_create_ext) -
14669 sizeof(struct lpfc_sli4_cfg_mhdr));
14670 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14671 LPFC_MBOX_OPCODE_MQ_CREATE_EXT,
14672 length, LPFC_SLI4_MBX_EMBED);
14674 mq_create_ext = &mbox->u.mqe.un.mq_create_ext;
14675 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr;
14676 bf_set(lpfc_mbx_mq_create_ext_num_pages,
14677 &mq_create_ext->u.request, mq->page_count);
14678 bf_set(lpfc_mbx_mq_create_ext_async_evt_link,
14679 &mq_create_ext->u.request, 1);
14680 bf_set(lpfc_mbx_mq_create_ext_async_evt_fip,
14681 &mq_create_ext->u.request, 1);
14682 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5,
14683 &mq_create_ext->u.request, 1);
14684 bf_set(lpfc_mbx_mq_create_ext_async_evt_fc,
14685 &mq_create_ext->u.request, 1);
14686 bf_set(lpfc_mbx_mq_create_ext_async_evt_sli,
14687 &mq_create_ext->u.request, 1);
14688 bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1);
14689 bf_set(lpfc_mbox_hdr_version, &shdr->request,
14690 phba->sli4_hba.pc_sli4_params.mqv);
14691 if (phba->sli4_hba.pc_sli4_params.mqv == LPFC_Q_CREATE_VERSION_1)
14692 bf_set(lpfc_mbx_mq_create_ext_cq_id, &mq_create_ext->u.request,
14695 bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context,
14697 switch (mq->entry_count) {
14699 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14700 "0362 Unsupported MQ count. (%d)\n",
14702 if (mq->entry_count < 16) {
14706 /* otherwise default to smallest count (drop through) */
14708 bf_set(lpfc_mq_context_ring_size,
14709 &mq_create_ext->u.request.context,
14710 LPFC_MQ_RING_SIZE_16);
14713 bf_set(lpfc_mq_context_ring_size,
14714 &mq_create_ext->u.request.context,
14715 LPFC_MQ_RING_SIZE_32);
14718 bf_set(lpfc_mq_context_ring_size,
14719 &mq_create_ext->u.request.context,
14720 LPFC_MQ_RING_SIZE_64);
14723 bf_set(lpfc_mq_context_ring_size,
14724 &mq_create_ext->u.request.context,
14725 LPFC_MQ_RING_SIZE_128);
14728 list_for_each_entry(dmabuf, &mq->page_list, list) {
14729 memset(dmabuf->virt, 0, hw_page_size);
14730 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_lo =
14731 putPaddrLow(dmabuf->phys);
14732 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_hi =
14733 putPaddrHigh(dmabuf->phys);
14735 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14736 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
14737 &mq_create_ext->u.response);
14738 if (rc != MBX_SUCCESS) {
14739 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14740 "2795 MQ_CREATE_EXT failed with "
14741 "status x%x. Failback to MQ_CREATE.\n",
14743 lpfc_mq_create_fb_init(phba, mq, mbox, cq);
14744 mq_create = &mbox->u.mqe.un.mq_create;
14745 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14746 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
14747 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
14748 &mq_create->u.response);
14751 /* The IOCTL status is embedded in the mailbox subheader. */
14752 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14753 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14754 if (shdr_status || shdr_add_status || rc) {
14755 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14756 "2502 MQ_CREATE mailbox failed with "
14757 "status x%x add_status x%x, mbx status x%x\n",
14758 shdr_status, shdr_add_status, rc);
14762 if (mq->queue_id == 0xFFFF) {
14766 mq->type = LPFC_MQ;
14767 mq->assoc_qid = cq->queue_id;
14768 mq->subtype = subtype;
14769 mq->host_index = 0;
14771 mq->entry_repost = LPFC_MQ_REPOST;
14773 /* link the mq onto the parent cq child list */
14774 list_add_tail(&mq->list, &cq->child_list);
14776 mempool_free(mbox, phba->mbox_mem_pool);
14781 * lpfc_wq_create - Create a Work Queue on the HBA
14782 * @phba: HBA structure that indicates port to create a queue on.
14783 * @wq: The queue structure to use to create the work queue.
14784 * @cq: The completion queue to bind this work queue to.
14785 * @subtype: The subtype of the work queue indicating its functionality.
14787 * This function creates a work queue, as detailed in @wq, on a port, described
14788 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
14790 * The @phba struct is used to send mailbox command to HBA. The @wq struct
14791 * is used to get the entry count and entry size that are necessary to
14792 * determine the number of pages to allocate and use for this queue. The @cq
14793 * is used to indicate which completion queue to bind this work queue to. This
14794 * function will send the WQ_CREATE mailbox command to the HBA to setup the
14795 * work queue. This function is asynchronous and will wait for the mailbox
14796 * command to finish before continuing.
14798 * On success this function will return a zero. If unable to allocate enough
14799 * memory this function will return -ENOMEM. If the queue create mailbox command
14800 * fails this function will return -ENXIO.
14803 lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
14804 struct lpfc_queue *cq, uint32_t subtype)
14806 struct lpfc_mbx_wq_create *wq_create;
14807 struct lpfc_dmabuf *dmabuf;
14808 LPFC_MBOXQ_t *mbox;
14809 int rc, length, status = 0;
14810 uint32_t shdr_status, shdr_add_status;
14811 union lpfc_sli4_cfg_shdr *shdr;
14812 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
14813 struct dma_address *page;
14814 void __iomem *bar_memmap_p;
14815 uint32_t db_offset;
14816 uint16_t pci_barset;
14818 /* sanity check on queue memory */
14821 if (!phba->sli4_hba.pc_sli4_params.supported)
14822 hw_page_size = SLI4_PAGE_SIZE;
14824 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14827 length = (sizeof(struct lpfc_mbx_wq_create) -
14828 sizeof(struct lpfc_sli4_cfg_mhdr));
14829 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14830 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
14831 length, LPFC_SLI4_MBX_EMBED);
14832 wq_create = &mbox->u.mqe.un.wq_create;
14833 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
14834 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
14836 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
14839 /* wqv is the earliest version supported, NOT the latest */
14840 bf_set(lpfc_mbox_hdr_version, &shdr->request,
14841 phba->sli4_hba.pc_sli4_params.wqv);
14843 switch (phba->sli4_hba.pc_sli4_params.wqv) {
14844 case LPFC_Q_CREATE_VERSION_0:
14845 switch (wq->entry_size) {
14848 /* Nothing to do, version 0 ONLY supports 64 byte */
14849 page = wq_create->u.request.page;
14852 if (!(phba->sli4_hba.pc_sli4_params.wqsize &
14853 LPFC_WQ_SZ128_SUPPORT)) {
14857 /* If we get here the HBA MUST also support V1 and
14860 bf_set(lpfc_mbox_hdr_version, &shdr->request,
14861 LPFC_Q_CREATE_VERSION_1);
14863 bf_set(lpfc_mbx_wq_create_wqe_count,
14864 &wq_create->u.request_1, wq->entry_count);
14865 bf_set(lpfc_mbx_wq_create_wqe_size,
14866 &wq_create->u.request_1,
14867 LPFC_WQ_WQE_SIZE_128);
14868 bf_set(lpfc_mbx_wq_create_page_size,
14869 &wq_create->u.request_1,
14870 LPFC_WQ_PAGE_SIZE_4096);
14871 page = wq_create->u.request_1.page;
14875 case LPFC_Q_CREATE_VERSION_1:
14876 bf_set(lpfc_mbx_wq_create_wqe_count, &wq_create->u.request_1,
14878 bf_set(lpfc_mbox_hdr_version, &shdr->request,
14879 LPFC_Q_CREATE_VERSION_1);
14881 switch (wq->entry_size) {
14884 bf_set(lpfc_mbx_wq_create_wqe_size,
14885 &wq_create->u.request_1,
14886 LPFC_WQ_WQE_SIZE_64);
14889 if (!(phba->sli4_hba.pc_sli4_params.wqsize &
14890 LPFC_WQ_SZ128_SUPPORT)) {
14894 bf_set(lpfc_mbx_wq_create_wqe_size,
14895 &wq_create->u.request_1,
14896 LPFC_WQ_WQE_SIZE_128);
14899 bf_set(lpfc_mbx_wq_create_page_size,
14900 &wq_create->u.request_1,
14901 LPFC_WQ_PAGE_SIZE_4096);
14902 page = wq_create->u.request_1.page;
14909 list_for_each_entry(dmabuf, &wq->page_list, list) {
14910 memset(dmabuf->virt, 0, hw_page_size);
14911 page[dmabuf->buffer_tag].addr_lo = putPaddrLow(dmabuf->phys);
14912 page[dmabuf->buffer_tag].addr_hi = putPaddrHigh(dmabuf->phys);
14915 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
14916 bf_set(lpfc_mbx_wq_create_dua, &wq_create->u.request, 1);
14918 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14919 /* The IOCTL status is embedded in the mailbox subheader. */
14920 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14921 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14922 if (shdr_status || shdr_add_status || rc) {
14923 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14924 "2503 WQ_CREATE mailbox failed with "
14925 "status x%x add_status x%x, mbx status x%x\n",
14926 shdr_status, shdr_add_status, rc);
14930 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response);
14931 if (wq->queue_id == 0xFFFF) {
14935 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
14936 wq->db_format = bf_get(lpfc_mbx_wq_create_db_format,
14937 &wq_create->u.response);
14938 if ((wq->db_format != LPFC_DB_LIST_FORMAT) &&
14939 (wq->db_format != LPFC_DB_RING_FORMAT)) {
14940 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14941 "3265 WQ[%d] doorbell format not "
14942 "supported: x%x\n", wq->queue_id,
14947 pci_barset = bf_get(lpfc_mbx_wq_create_bar_set,
14948 &wq_create->u.response);
14949 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
14950 if (!bar_memmap_p) {
14951 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14952 "3263 WQ[%d] failed to memmap pci "
14953 "barset:x%x\n", wq->queue_id,
14958 db_offset = wq_create->u.response.doorbell_offset;
14959 if ((db_offset != LPFC_ULP0_WQ_DOORBELL) &&
14960 (db_offset != LPFC_ULP1_WQ_DOORBELL)) {
14961 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14962 "3252 WQ[%d] doorbell offset not "
14963 "supported: x%x\n", wq->queue_id,
14968 wq->db_regaddr = bar_memmap_p + db_offset;
14969 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14970 "3264 WQ[%d]: barset:x%x, offset:x%x, "
14971 "format:x%x\n", wq->queue_id, pci_barset,
14972 db_offset, wq->db_format);
14974 wq->db_format = LPFC_DB_LIST_FORMAT;
14975 wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
14977 wq->pring = kzalloc(sizeof(struct lpfc_sli_ring), GFP_KERNEL);
14978 if (wq->pring == NULL) {
14982 wq->type = LPFC_WQ;
14983 wq->assoc_qid = cq->queue_id;
14984 wq->subtype = subtype;
14985 wq->host_index = 0;
14987 wq->entry_repost = LPFC_RELEASE_NOTIFICATION_INTERVAL;
14989 /* link the wq onto the parent cq child list */
14990 list_add_tail(&wq->list, &cq->child_list);
14992 mempool_free(mbox, phba->mbox_mem_pool);
14997 * lpfc_rq_create - Create a Receive Queue on the HBA
14998 * @phba: HBA structure that indicates port to create a queue on.
14999 * @hrq: The queue structure to use to create the header receive queue.
15000 * @drq: The queue structure to use to create the data receive queue.
15001 * @cq: The completion queue to bind this work queue to.
15003 * This function creates a receive buffer queue pair , as detailed in @hrq and
15004 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
15007 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
15008 * struct is used to get the entry count that is necessary to determine the
15009 * number of pages to use for this queue. The @cq is used to indicate which
15010 * completion queue to bind received buffers that are posted to these queues to.
15011 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
15012 * receive queue pair. This function is asynchronous and will wait for the
15013 * mailbox command to finish before continuing.
15015 * On success this function will return a zero. If unable to allocate enough
15016 * memory this function will return -ENOMEM. If the queue create mailbox command
15017 * fails this function will return -ENXIO.
15020 lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
15021 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
15023 struct lpfc_mbx_rq_create *rq_create;
15024 struct lpfc_dmabuf *dmabuf;
15025 LPFC_MBOXQ_t *mbox;
15026 int rc, length, status = 0;
15027 uint32_t shdr_status, shdr_add_status;
15028 union lpfc_sli4_cfg_shdr *shdr;
15029 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15030 void __iomem *bar_memmap_p;
15031 uint32_t db_offset;
15032 uint16_t pci_barset;
15034 /* sanity check on queue memory */
15035 if (!hrq || !drq || !cq)
15037 if (!phba->sli4_hba.pc_sli4_params.supported)
15038 hw_page_size = SLI4_PAGE_SIZE;
15040 if (hrq->entry_count != drq->entry_count)
15042 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15045 length = (sizeof(struct lpfc_mbx_rq_create) -
15046 sizeof(struct lpfc_sli4_cfg_mhdr));
15047 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15048 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
15049 length, LPFC_SLI4_MBX_EMBED);
15050 rq_create = &mbox->u.mqe.un.rq_create;
15051 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
15052 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15053 phba->sli4_hba.pc_sli4_params.rqv);
15054 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
15055 bf_set(lpfc_rq_context_rqe_count_1,
15056 &rq_create->u.request.context,
15058 rq_create->u.request.context.buffer_size = LPFC_HDR_BUF_SIZE;
15059 bf_set(lpfc_rq_context_rqe_size,
15060 &rq_create->u.request.context,
15062 bf_set(lpfc_rq_context_page_size,
15063 &rq_create->u.request.context,
15064 LPFC_RQ_PAGE_SIZE_4096);
15066 switch (hrq->entry_count) {
15068 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15069 "2535 Unsupported RQ count. (%d)\n",
15071 if (hrq->entry_count < 512) {
15075 /* otherwise default to smallest count (drop through) */
15077 bf_set(lpfc_rq_context_rqe_count,
15078 &rq_create->u.request.context,
15079 LPFC_RQ_RING_SIZE_512);
15082 bf_set(lpfc_rq_context_rqe_count,
15083 &rq_create->u.request.context,
15084 LPFC_RQ_RING_SIZE_1024);
15087 bf_set(lpfc_rq_context_rqe_count,
15088 &rq_create->u.request.context,
15089 LPFC_RQ_RING_SIZE_2048);
15092 bf_set(lpfc_rq_context_rqe_count,
15093 &rq_create->u.request.context,
15094 LPFC_RQ_RING_SIZE_4096);
15097 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
15098 LPFC_HDR_BUF_SIZE);
15100 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
15102 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
15104 list_for_each_entry(dmabuf, &hrq->page_list, list) {
15105 memset(dmabuf->virt, 0, hw_page_size);
15106 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
15107 putPaddrLow(dmabuf->phys);
15108 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
15109 putPaddrHigh(dmabuf->phys);
15111 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
15112 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
15114 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15115 /* The IOCTL status is embedded in the mailbox subheader. */
15116 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15117 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15118 if (shdr_status || shdr_add_status || rc) {
15119 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15120 "2504 RQ_CREATE mailbox failed with "
15121 "status x%x add_status x%x, mbx status x%x\n",
15122 shdr_status, shdr_add_status, rc);
15126 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
15127 if (hrq->queue_id == 0xFFFF) {
15132 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
15133 hrq->db_format = bf_get(lpfc_mbx_rq_create_db_format,
15134 &rq_create->u.response);
15135 if ((hrq->db_format != LPFC_DB_LIST_FORMAT) &&
15136 (hrq->db_format != LPFC_DB_RING_FORMAT)) {
15137 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15138 "3262 RQ [%d] doorbell format not "
15139 "supported: x%x\n", hrq->queue_id,
15145 pci_barset = bf_get(lpfc_mbx_rq_create_bar_set,
15146 &rq_create->u.response);
15147 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
15148 if (!bar_memmap_p) {
15149 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15150 "3269 RQ[%d] failed to memmap pci "
15151 "barset:x%x\n", hrq->queue_id,
15157 db_offset = rq_create->u.response.doorbell_offset;
15158 if ((db_offset != LPFC_ULP0_RQ_DOORBELL) &&
15159 (db_offset != LPFC_ULP1_RQ_DOORBELL)) {
15160 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15161 "3270 RQ[%d] doorbell offset not "
15162 "supported: x%x\n", hrq->queue_id,
15167 hrq->db_regaddr = bar_memmap_p + db_offset;
15168 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15169 "3266 RQ[qid:%d]: barset:x%x, offset:x%x, "
15170 "format:x%x\n", hrq->queue_id, pci_barset,
15171 db_offset, hrq->db_format);
15173 hrq->db_format = LPFC_DB_RING_FORMAT;
15174 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
15176 hrq->type = LPFC_HRQ;
15177 hrq->assoc_qid = cq->queue_id;
15178 hrq->subtype = subtype;
15179 hrq->host_index = 0;
15180 hrq->hba_index = 0;
15181 hrq->entry_repost = LPFC_RQ_REPOST;
15183 /* now create the data queue */
15184 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15185 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
15186 length, LPFC_SLI4_MBX_EMBED);
15187 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15188 phba->sli4_hba.pc_sli4_params.rqv);
15189 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
15190 bf_set(lpfc_rq_context_rqe_count_1,
15191 &rq_create->u.request.context, hrq->entry_count);
15192 if (subtype == LPFC_NVMET)
15193 rq_create->u.request.context.buffer_size =
15194 LPFC_NVMET_DATA_BUF_SIZE;
15196 rq_create->u.request.context.buffer_size =
15197 LPFC_DATA_BUF_SIZE;
15198 bf_set(lpfc_rq_context_rqe_size, &rq_create->u.request.context,
15200 bf_set(lpfc_rq_context_page_size, &rq_create->u.request.context,
15201 (PAGE_SIZE/SLI4_PAGE_SIZE));
15203 switch (drq->entry_count) {
15205 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15206 "2536 Unsupported RQ count. (%d)\n",
15208 if (drq->entry_count < 512) {
15212 /* otherwise default to smallest count (drop through) */
15214 bf_set(lpfc_rq_context_rqe_count,
15215 &rq_create->u.request.context,
15216 LPFC_RQ_RING_SIZE_512);
15219 bf_set(lpfc_rq_context_rqe_count,
15220 &rq_create->u.request.context,
15221 LPFC_RQ_RING_SIZE_1024);
15224 bf_set(lpfc_rq_context_rqe_count,
15225 &rq_create->u.request.context,
15226 LPFC_RQ_RING_SIZE_2048);
15229 bf_set(lpfc_rq_context_rqe_count,
15230 &rq_create->u.request.context,
15231 LPFC_RQ_RING_SIZE_4096);
15234 if (subtype == LPFC_NVMET)
15235 bf_set(lpfc_rq_context_buf_size,
15236 &rq_create->u.request.context,
15237 LPFC_NVMET_DATA_BUF_SIZE);
15239 bf_set(lpfc_rq_context_buf_size,
15240 &rq_create->u.request.context,
15241 LPFC_DATA_BUF_SIZE);
15243 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
15245 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
15247 list_for_each_entry(dmabuf, &drq->page_list, list) {
15248 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
15249 putPaddrLow(dmabuf->phys);
15250 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
15251 putPaddrHigh(dmabuf->phys);
15253 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
15254 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
15255 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15256 /* The IOCTL status is embedded in the mailbox subheader. */
15257 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
15258 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15259 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15260 if (shdr_status || shdr_add_status || rc) {
15264 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
15265 if (drq->queue_id == 0xFFFF) {
15269 drq->type = LPFC_DRQ;
15270 drq->assoc_qid = cq->queue_id;
15271 drq->subtype = subtype;
15272 drq->host_index = 0;
15273 drq->hba_index = 0;
15274 drq->entry_repost = LPFC_RQ_REPOST;
15276 /* link the header and data RQs onto the parent cq child list */
15277 list_add_tail(&hrq->list, &cq->child_list);
15278 list_add_tail(&drq->list, &cq->child_list);
15281 mempool_free(mbox, phba->mbox_mem_pool);
15286 * lpfc_mrq_create - Create MRQ Receive Queues on the HBA
15287 * @phba: HBA structure that indicates port to create a queue on.
15288 * @hrqp: The queue structure array to use to create the header receive queues.
15289 * @drqp: The queue structure array to use to create the data receive queues.
15290 * @cqp: The completion queue array to bind these receive queues to.
15292 * This function creates a receive buffer queue pair , as detailed in @hrq and
15293 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
15296 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
15297 * struct is used to get the entry count that is necessary to determine the
15298 * number of pages to use for this queue. The @cq is used to indicate which
15299 * completion queue to bind received buffers that are posted to these queues to.
15300 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
15301 * receive queue pair. This function is asynchronous and will wait for the
15302 * mailbox command to finish before continuing.
15304 * On success this function will return a zero. If unable to allocate enough
15305 * memory this function will return -ENOMEM. If the queue create mailbox command
15306 * fails this function will return -ENXIO.
15309 lpfc_mrq_create(struct lpfc_hba *phba, struct lpfc_queue **hrqp,
15310 struct lpfc_queue **drqp, struct lpfc_queue **cqp,
15313 struct lpfc_queue *hrq, *drq, *cq;
15314 struct lpfc_mbx_rq_create_v2 *rq_create;
15315 struct lpfc_dmabuf *dmabuf;
15316 LPFC_MBOXQ_t *mbox;
15317 int rc, length, alloclen, status = 0;
15318 int cnt, idx, numrq, page_idx = 0;
15319 uint32_t shdr_status, shdr_add_status;
15320 union lpfc_sli4_cfg_shdr *shdr;
15321 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15323 numrq = phba->cfg_nvmet_mrq;
15324 /* sanity check on array memory */
15325 if (!hrqp || !drqp || !cqp || !numrq)
15327 if (!phba->sli4_hba.pc_sli4_params.supported)
15328 hw_page_size = SLI4_PAGE_SIZE;
15330 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15334 length = sizeof(struct lpfc_mbx_rq_create_v2);
15335 length += ((2 * numrq * hrqp[0]->page_count) *
15336 sizeof(struct dma_address));
15338 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15339 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE, length,
15340 LPFC_SLI4_MBX_NEMBED);
15341 if (alloclen < length) {
15342 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15343 "3099 Allocated DMA memory size (%d) is "
15344 "less than the requested DMA memory size "
15345 "(%d)\n", alloclen, length);
15352 rq_create = mbox->sge_array->addr[0];
15353 shdr = (union lpfc_sli4_cfg_shdr *)&rq_create->cfg_shdr;
15355 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_Q_CREATE_VERSION_2);
15358 for (idx = 0; idx < numrq; idx++) {
15363 /* sanity check on queue memory */
15364 if (!hrq || !drq || !cq) {
15369 if (hrq->entry_count != drq->entry_count) {
15375 bf_set(lpfc_mbx_rq_create_num_pages,
15376 &rq_create->u.request,
15378 bf_set(lpfc_mbx_rq_create_rq_cnt,
15379 &rq_create->u.request, (numrq * 2));
15380 bf_set(lpfc_mbx_rq_create_dnb, &rq_create->u.request,
15382 bf_set(lpfc_rq_context_base_cq,
15383 &rq_create->u.request.context,
15385 bf_set(lpfc_rq_context_data_size,
15386 &rq_create->u.request.context,
15387 LPFC_NVMET_DATA_BUF_SIZE);
15388 bf_set(lpfc_rq_context_hdr_size,
15389 &rq_create->u.request.context,
15390 LPFC_HDR_BUF_SIZE);
15391 bf_set(lpfc_rq_context_rqe_count_1,
15392 &rq_create->u.request.context,
15394 bf_set(lpfc_rq_context_rqe_size,
15395 &rq_create->u.request.context,
15397 bf_set(lpfc_rq_context_page_size,
15398 &rq_create->u.request.context,
15399 (PAGE_SIZE/SLI4_PAGE_SIZE));
15402 list_for_each_entry(dmabuf, &hrq->page_list, list) {
15403 memset(dmabuf->virt, 0, hw_page_size);
15404 cnt = page_idx + dmabuf->buffer_tag;
15405 rq_create->u.request.page[cnt].addr_lo =
15406 putPaddrLow(dmabuf->phys);
15407 rq_create->u.request.page[cnt].addr_hi =
15408 putPaddrHigh(dmabuf->phys);
15414 list_for_each_entry(dmabuf, &drq->page_list, list) {
15415 memset(dmabuf->virt, 0, hw_page_size);
15416 cnt = page_idx + dmabuf->buffer_tag;
15417 rq_create->u.request.page[cnt].addr_lo =
15418 putPaddrLow(dmabuf->phys);
15419 rq_create->u.request.page[cnt].addr_hi =
15420 putPaddrHigh(dmabuf->phys);
15425 hrq->db_format = LPFC_DB_RING_FORMAT;
15426 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
15427 hrq->type = LPFC_HRQ;
15428 hrq->assoc_qid = cq->queue_id;
15429 hrq->subtype = subtype;
15430 hrq->host_index = 0;
15431 hrq->hba_index = 0;
15432 hrq->entry_repost = LPFC_RQ_REPOST;
15434 drq->db_format = LPFC_DB_RING_FORMAT;
15435 drq->db_regaddr = phba->sli4_hba.RQDBregaddr;
15436 drq->type = LPFC_DRQ;
15437 drq->assoc_qid = cq->queue_id;
15438 drq->subtype = subtype;
15439 drq->host_index = 0;
15440 drq->hba_index = 0;
15441 drq->entry_repost = LPFC_RQ_REPOST;
15443 list_add_tail(&hrq->list, &cq->child_list);
15444 list_add_tail(&drq->list, &cq->child_list);
15447 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15448 /* The IOCTL status is embedded in the mailbox subheader. */
15449 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15450 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15451 if (shdr_status || shdr_add_status || rc) {
15452 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15453 "3120 RQ_CREATE mailbox failed with "
15454 "status x%x add_status x%x, mbx status x%x\n",
15455 shdr_status, shdr_add_status, rc);
15459 rc = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
15460 if (rc == 0xFFFF) {
15465 /* Initialize all RQs with associated queue id */
15466 for (idx = 0; idx < numrq; idx++) {
15468 hrq->queue_id = rc + (2 * idx);
15470 drq->queue_id = rc + (2 * idx) + 1;
15474 lpfc_sli4_mbox_cmd_free(phba, mbox);
15479 * lpfc_eq_destroy - Destroy an event Queue on the HBA
15480 * @eq: The queue structure associated with the queue to destroy.
15482 * This function destroys a queue, as detailed in @eq by sending an mailbox
15483 * command, specific to the type of queue, to the HBA.
15485 * The @eq struct is used to get the queue ID of the queue to destroy.
15487 * On success this function will return a zero. If the queue destroy mailbox
15488 * command fails this function will return -ENXIO.
15491 lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
15493 LPFC_MBOXQ_t *mbox;
15494 int rc, length, status = 0;
15495 uint32_t shdr_status, shdr_add_status;
15496 union lpfc_sli4_cfg_shdr *shdr;
15498 /* sanity check on queue memory */
15501 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
15504 length = (sizeof(struct lpfc_mbx_eq_destroy) -
15505 sizeof(struct lpfc_sli4_cfg_mhdr));
15506 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
15507 LPFC_MBOX_OPCODE_EQ_DESTROY,
15508 length, LPFC_SLI4_MBX_EMBED);
15509 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
15511 mbox->vport = eq->phba->pport;
15512 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15514 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
15515 /* The IOCTL status is embedded in the mailbox subheader. */
15516 shdr = (union lpfc_sli4_cfg_shdr *)
15517 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
15518 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15519 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15520 if (shdr_status || shdr_add_status || rc) {
15521 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15522 "2505 EQ_DESTROY mailbox failed with "
15523 "status x%x add_status x%x, mbx status x%x\n",
15524 shdr_status, shdr_add_status, rc);
15528 /* Remove eq from any list */
15529 list_del_init(&eq->list);
15530 mempool_free(mbox, eq->phba->mbox_mem_pool);
15535 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
15536 * @cq: The queue structure associated with the queue to destroy.
15538 * This function destroys a queue, as detailed in @cq by sending an mailbox
15539 * command, specific to the type of queue, to the HBA.
15541 * The @cq struct is used to get the queue ID of the queue to destroy.
15543 * On success this function will return a zero. If the queue destroy mailbox
15544 * command fails this function will return -ENXIO.
15547 lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
15549 LPFC_MBOXQ_t *mbox;
15550 int rc, length, status = 0;
15551 uint32_t shdr_status, shdr_add_status;
15552 union lpfc_sli4_cfg_shdr *shdr;
15554 /* sanity check on queue memory */
15557 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
15560 length = (sizeof(struct lpfc_mbx_cq_destroy) -
15561 sizeof(struct lpfc_sli4_cfg_mhdr));
15562 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
15563 LPFC_MBOX_OPCODE_CQ_DESTROY,
15564 length, LPFC_SLI4_MBX_EMBED);
15565 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
15567 mbox->vport = cq->phba->pport;
15568 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15569 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
15570 /* The IOCTL status is embedded in the mailbox subheader. */
15571 shdr = (union lpfc_sli4_cfg_shdr *)
15572 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
15573 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15574 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15575 if (shdr_status || shdr_add_status || rc) {
15576 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15577 "2506 CQ_DESTROY mailbox failed with "
15578 "status x%x add_status x%x, mbx status x%x\n",
15579 shdr_status, shdr_add_status, rc);
15582 /* Remove cq from any list */
15583 list_del_init(&cq->list);
15584 mempool_free(mbox, cq->phba->mbox_mem_pool);
15589 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
15590 * @qm: The queue structure associated with the queue to destroy.
15592 * This function destroys a queue, as detailed in @mq by sending an mailbox
15593 * command, specific to the type of queue, to the HBA.
15595 * The @mq struct is used to get the queue ID of the queue to destroy.
15597 * On success this function will return a zero. If the queue destroy mailbox
15598 * command fails this function will return -ENXIO.
15601 lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
15603 LPFC_MBOXQ_t *mbox;
15604 int rc, length, status = 0;
15605 uint32_t shdr_status, shdr_add_status;
15606 union lpfc_sli4_cfg_shdr *shdr;
15608 /* sanity check on queue memory */
15611 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
15614 length = (sizeof(struct lpfc_mbx_mq_destroy) -
15615 sizeof(struct lpfc_sli4_cfg_mhdr));
15616 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
15617 LPFC_MBOX_OPCODE_MQ_DESTROY,
15618 length, LPFC_SLI4_MBX_EMBED);
15619 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
15621 mbox->vport = mq->phba->pport;
15622 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15623 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
15624 /* The IOCTL status is embedded in the mailbox subheader. */
15625 shdr = (union lpfc_sli4_cfg_shdr *)
15626 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
15627 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15628 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15629 if (shdr_status || shdr_add_status || rc) {
15630 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15631 "2507 MQ_DESTROY mailbox failed with "
15632 "status x%x add_status x%x, mbx status x%x\n",
15633 shdr_status, shdr_add_status, rc);
15636 /* Remove mq from any list */
15637 list_del_init(&mq->list);
15638 mempool_free(mbox, mq->phba->mbox_mem_pool);
15643 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
15644 * @wq: The queue structure associated with the queue to destroy.
15646 * This function destroys a queue, as detailed in @wq by sending an mailbox
15647 * command, specific to the type of queue, to the HBA.
15649 * The @wq struct is used to get the queue ID of the queue to destroy.
15651 * On success this function will return a zero. If the queue destroy mailbox
15652 * command fails this function will return -ENXIO.
15655 lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
15657 LPFC_MBOXQ_t *mbox;
15658 int rc, length, status = 0;
15659 uint32_t shdr_status, shdr_add_status;
15660 union lpfc_sli4_cfg_shdr *shdr;
15662 /* sanity check on queue memory */
15665 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
15668 length = (sizeof(struct lpfc_mbx_wq_destroy) -
15669 sizeof(struct lpfc_sli4_cfg_mhdr));
15670 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15671 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
15672 length, LPFC_SLI4_MBX_EMBED);
15673 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
15675 mbox->vport = wq->phba->pport;
15676 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15677 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
15678 shdr = (union lpfc_sli4_cfg_shdr *)
15679 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
15680 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15681 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15682 if (shdr_status || shdr_add_status || rc) {
15683 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15684 "2508 WQ_DESTROY mailbox failed with "
15685 "status x%x add_status x%x, mbx status x%x\n",
15686 shdr_status, shdr_add_status, rc);
15689 /* Remove wq from any list */
15690 list_del_init(&wq->list);
15693 mempool_free(mbox, wq->phba->mbox_mem_pool);
15698 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
15699 * @rq: The queue structure associated with the queue to destroy.
15701 * This function destroys a queue, as detailed in @rq by sending an mailbox
15702 * command, specific to the type of queue, to the HBA.
15704 * The @rq struct is used to get the queue ID of the queue to destroy.
15706 * On success this function will return a zero. If the queue destroy mailbox
15707 * command fails this function will return -ENXIO.
15710 lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
15711 struct lpfc_queue *drq)
15713 LPFC_MBOXQ_t *mbox;
15714 int rc, length, status = 0;
15715 uint32_t shdr_status, shdr_add_status;
15716 union lpfc_sli4_cfg_shdr *shdr;
15718 /* sanity check on queue memory */
15721 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
15724 length = (sizeof(struct lpfc_mbx_rq_destroy) -
15725 sizeof(struct lpfc_sli4_cfg_mhdr));
15726 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15727 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
15728 length, LPFC_SLI4_MBX_EMBED);
15729 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
15731 mbox->vport = hrq->phba->pport;
15732 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15733 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
15734 /* The IOCTL status is embedded in the mailbox subheader. */
15735 shdr = (union lpfc_sli4_cfg_shdr *)
15736 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
15737 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15738 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15739 if (shdr_status || shdr_add_status || rc) {
15740 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15741 "2509 RQ_DESTROY mailbox failed with "
15742 "status x%x add_status x%x, mbx status x%x\n",
15743 shdr_status, shdr_add_status, rc);
15744 if (rc != MBX_TIMEOUT)
15745 mempool_free(mbox, hrq->phba->mbox_mem_pool);
15748 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
15750 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
15751 shdr = (union lpfc_sli4_cfg_shdr *)
15752 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
15753 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15754 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15755 if (shdr_status || shdr_add_status || rc) {
15756 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15757 "2510 RQ_DESTROY mailbox failed with "
15758 "status x%x add_status x%x, mbx status x%x\n",
15759 shdr_status, shdr_add_status, rc);
15762 list_del_init(&hrq->list);
15763 list_del_init(&drq->list);
15764 mempool_free(mbox, hrq->phba->mbox_mem_pool);
15769 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
15770 * @phba: The virtual port for which this call being executed.
15771 * @pdma_phys_addr0: Physical address of the 1st SGL page.
15772 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
15773 * @xritag: the xritag that ties this io to the SGL pages.
15775 * This routine will post the sgl pages for the IO that has the xritag
15776 * that is in the iocbq structure. The xritag is assigned during iocbq
15777 * creation and persists for as long as the driver is loaded.
15778 * if the caller has fewer than 256 scatter gather segments to map then
15779 * pdma_phys_addr1 should be 0.
15780 * If the caller needs to map more than 256 scatter gather segment then
15781 * pdma_phys_addr1 should be a valid physical address.
15782 * physical address for SGLs must be 64 byte aligned.
15783 * If you are going to map 2 SGL's then the first one must have 256 entries
15784 * the second sgl can have between 1 and 256 entries.
15788 * -ENXIO, -ENOMEM - Failure
15791 lpfc_sli4_post_sgl(struct lpfc_hba *phba,
15792 dma_addr_t pdma_phys_addr0,
15793 dma_addr_t pdma_phys_addr1,
15796 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
15797 LPFC_MBOXQ_t *mbox;
15799 uint32_t shdr_status, shdr_add_status;
15801 union lpfc_sli4_cfg_shdr *shdr;
15803 if (xritag == NO_XRI) {
15804 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15805 "0364 Invalid param:\n");
15809 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15813 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15814 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
15815 sizeof(struct lpfc_mbx_post_sgl_pages) -
15816 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
15818 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
15819 &mbox->u.mqe.un.post_sgl_pages;
15820 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
15821 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
15823 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
15824 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
15825 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
15826 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
15828 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
15829 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
15830 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
15831 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
15832 if (!phba->sli4_hba.intr_enable)
15833 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15835 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
15836 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
15838 /* The IOCTL status is embedded in the mailbox subheader. */
15839 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
15840 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15841 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15842 if (rc != MBX_TIMEOUT)
15843 mempool_free(mbox, phba->mbox_mem_pool);
15844 if (shdr_status || shdr_add_status || rc) {
15845 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15846 "2511 POST_SGL mailbox failed with "
15847 "status x%x add_status x%x, mbx status x%x\n",
15848 shdr_status, shdr_add_status, rc);
15854 * lpfc_sli4_alloc_xri - Get an available rpi in the device's range
15855 * @phba: pointer to lpfc hba data structure.
15857 * This routine is invoked to post rpi header templates to the
15858 * HBA consistent with the SLI-4 interface spec. This routine
15859 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
15860 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
15863 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
15864 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
15867 lpfc_sli4_alloc_xri(struct lpfc_hba *phba)
15872 * Fetch the next logical xri. Because this index is logical,
15873 * the driver starts at 0 each time.
15875 spin_lock_irq(&phba->hbalock);
15876 xri = find_next_zero_bit(phba->sli4_hba.xri_bmask,
15877 phba->sli4_hba.max_cfg_param.max_xri, 0);
15878 if (xri >= phba->sli4_hba.max_cfg_param.max_xri) {
15879 spin_unlock_irq(&phba->hbalock);
15882 set_bit(xri, phba->sli4_hba.xri_bmask);
15883 phba->sli4_hba.max_cfg_param.xri_used++;
15885 spin_unlock_irq(&phba->hbalock);
15890 * lpfc_sli4_free_xri - Release an xri for reuse.
15891 * @phba: pointer to lpfc hba data structure.
15893 * This routine is invoked to release an xri to the pool of
15894 * available rpis maintained by the driver.
15897 __lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
15899 if (test_and_clear_bit(xri, phba->sli4_hba.xri_bmask)) {
15900 phba->sli4_hba.max_cfg_param.xri_used--;
15905 * lpfc_sli4_free_xri - Release an xri for reuse.
15906 * @phba: pointer to lpfc hba data structure.
15908 * This routine is invoked to release an xri to the pool of
15909 * available rpis maintained by the driver.
15912 lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
15914 spin_lock_irq(&phba->hbalock);
15915 __lpfc_sli4_free_xri(phba, xri);
15916 spin_unlock_irq(&phba->hbalock);
15920 * lpfc_sli4_next_xritag - Get an xritag for the io
15921 * @phba: Pointer to HBA context object.
15923 * This function gets an xritag for the iocb. If there is no unused xritag
15924 * it will return 0xffff.
15925 * The function returns the allocated xritag if successful, else returns zero.
15926 * Zero is not a valid xritag.
15927 * The caller is not required to hold any lock.
15930 lpfc_sli4_next_xritag(struct lpfc_hba *phba)
15932 uint16_t xri_index;
15934 xri_index = lpfc_sli4_alloc_xri(phba);
15935 if (xri_index == NO_XRI)
15936 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
15937 "2004 Failed to allocate XRI.last XRITAG is %d"
15938 " Max XRI is %d, Used XRI is %d\n",
15940 phba->sli4_hba.max_cfg_param.max_xri,
15941 phba->sli4_hba.max_cfg_param.xri_used);
15946 * lpfc_sli4_post_sgl_list - post a block of ELS sgls to the port.
15947 * @phba: pointer to lpfc hba data structure.
15948 * @post_sgl_list: pointer to els sgl entry list.
15949 * @count: number of els sgl entries on the list.
15951 * This routine is invoked to post a block of driver's sgl pages to the
15952 * HBA using non-embedded mailbox command. No Lock is held. This routine
15953 * is only called when the driver is loading and after all IO has been
15957 lpfc_sli4_post_sgl_list(struct lpfc_hba *phba,
15958 struct list_head *post_sgl_list,
15961 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
15962 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
15963 struct sgl_page_pairs *sgl_pg_pairs;
15965 LPFC_MBOXQ_t *mbox;
15966 uint32_t reqlen, alloclen, pg_pairs;
15968 uint16_t xritag_start = 0;
15970 uint32_t shdr_status, shdr_add_status;
15971 union lpfc_sli4_cfg_shdr *shdr;
15973 reqlen = post_cnt * sizeof(struct sgl_page_pairs) +
15974 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
15975 if (reqlen > SLI4_PAGE_SIZE) {
15976 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15977 "2559 Block sgl registration required DMA "
15978 "size (%d) great than a page\n", reqlen);
15982 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15986 /* Allocate DMA memory and set up the non-embedded mailbox command */
15987 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15988 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
15989 LPFC_SLI4_MBX_NEMBED);
15991 if (alloclen < reqlen) {
15992 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15993 "0285 Allocated DMA memory size (%d) is "
15994 "less than the requested DMA memory "
15995 "size (%d)\n", alloclen, reqlen);
15996 lpfc_sli4_mbox_cmd_free(phba, mbox);
15999 /* Set up the SGL pages in the non-embedded DMA pages */
16000 viraddr = mbox->sge_array->addr[0];
16001 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
16002 sgl_pg_pairs = &sgl->sgl_pg_pairs;
16005 list_for_each_entry_safe(sglq_entry, sglq_next, post_sgl_list, list) {
16006 /* Set up the sge entry */
16007 sgl_pg_pairs->sgl_pg0_addr_lo =
16008 cpu_to_le32(putPaddrLow(sglq_entry->phys));
16009 sgl_pg_pairs->sgl_pg0_addr_hi =
16010 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
16011 sgl_pg_pairs->sgl_pg1_addr_lo =
16012 cpu_to_le32(putPaddrLow(0));
16013 sgl_pg_pairs->sgl_pg1_addr_hi =
16014 cpu_to_le32(putPaddrHigh(0));
16016 /* Keep the first xritag on the list */
16018 xritag_start = sglq_entry->sli4_xritag;
16023 /* Complete initialization and perform endian conversion. */
16024 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
16025 bf_set(lpfc_post_sgl_pages_xricnt, sgl, post_cnt);
16026 sgl->word0 = cpu_to_le32(sgl->word0);
16028 if (!phba->sli4_hba.intr_enable)
16029 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16031 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
16032 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16034 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
16035 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16036 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16037 if (rc != MBX_TIMEOUT)
16038 lpfc_sli4_mbox_cmd_free(phba, mbox);
16039 if (shdr_status || shdr_add_status || rc) {
16040 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16041 "2513 POST_SGL_BLOCK mailbox command failed "
16042 "status x%x add_status x%x mbx status x%x\n",
16043 shdr_status, shdr_add_status, rc);
16050 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
16051 * @phba: pointer to lpfc hba data structure.
16052 * @sblist: pointer to scsi buffer list.
16053 * @count: number of scsi buffers on the list.
16055 * This routine is invoked to post a block of @count scsi sgl pages from a
16056 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
16061 lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba,
16062 struct list_head *sblist,
16065 struct lpfc_scsi_buf *psb;
16066 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
16067 struct sgl_page_pairs *sgl_pg_pairs;
16069 LPFC_MBOXQ_t *mbox;
16070 uint32_t reqlen, alloclen, pg_pairs;
16072 uint16_t xritag_start = 0;
16074 uint32_t shdr_status, shdr_add_status;
16075 dma_addr_t pdma_phys_bpl1;
16076 union lpfc_sli4_cfg_shdr *shdr;
16078 /* Calculate the requested length of the dma memory */
16079 reqlen = count * sizeof(struct sgl_page_pairs) +
16080 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
16081 if (reqlen > SLI4_PAGE_SIZE) {
16082 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
16083 "0217 Block sgl registration required DMA "
16084 "size (%d) great than a page\n", reqlen);
16087 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16089 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16090 "0283 Failed to allocate mbox cmd memory\n");
16094 /* Allocate DMA memory and set up the non-embedded mailbox command */
16095 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16096 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
16097 LPFC_SLI4_MBX_NEMBED);
16099 if (alloclen < reqlen) {
16100 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16101 "2561 Allocated DMA memory size (%d) is "
16102 "less than the requested DMA memory "
16103 "size (%d)\n", alloclen, reqlen);
16104 lpfc_sli4_mbox_cmd_free(phba, mbox);
16108 /* Get the first SGE entry from the non-embedded DMA memory */
16109 viraddr = mbox->sge_array->addr[0];
16111 /* Set up the SGL pages in the non-embedded DMA pages */
16112 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
16113 sgl_pg_pairs = &sgl->sgl_pg_pairs;
16116 list_for_each_entry(psb, sblist, list) {
16117 /* Set up the sge entry */
16118 sgl_pg_pairs->sgl_pg0_addr_lo =
16119 cpu_to_le32(putPaddrLow(psb->dma_phys_bpl));
16120 sgl_pg_pairs->sgl_pg0_addr_hi =
16121 cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl));
16122 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
16123 pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE;
16125 pdma_phys_bpl1 = 0;
16126 sgl_pg_pairs->sgl_pg1_addr_lo =
16127 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
16128 sgl_pg_pairs->sgl_pg1_addr_hi =
16129 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
16130 /* Keep the first xritag on the list */
16132 xritag_start = psb->cur_iocbq.sli4_xritag;
16136 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
16137 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
16138 /* Perform endian conversion if necessary */
16139 sgl->word0 = cpu_to_le32(sgl->word0);
16141 if (!phba->sli4_hba.intr_enable)
16142 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16144 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
16145 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16147 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
16148 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16149 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16150 if (rc != MBX_TIMEOUT)
16151 lpfc_sli4_mbox_cmd_free(phba, mbox);
16152 if (shdr_status || shdr_add_status || rc) {
16153 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16154 "2564 POST_SGL_BLOCK mailbox command failed "
16155 "status x%x add_status x%x mbx status x%x\n",
16156 shdr_status, shdr_add_status, rc);
16163 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
16164 * @phba: pointer to lpfc_hba struct that the frame was received on
16165 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
16167 * This function checks the fields in the @fc_hdr to see if the FC frame is a
16168 * valid type of frame that the LPFC driver will handle. This function will
16169 * return a zero if the frame is a valid frame or a non zero value when the
16170 * frame does not pass the check.
16173 lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
16175 /* make rctl_names static to save stack space */
16176 struct fc_vft_header *fc_vft_hdr;
16177 uint32_t *header = (uint32_t *) fc_hdr;
16179 #define FC_RCTL_MDS_DIAGS 0xF4
16181 switch (fc_hdr->fh_r_ctl) {
16182 case FC_RCTL_DD_UNCAT: /* uncategorized information */
16183 case FC_RCTL_DD_SOL_DATA: /* solicited data */
16184 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
16185 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
16186 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
16187 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
16188 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
16189 case FC_RCTL_DD_CMD_STATUS: /* command status */
16190 case FC_RCTL_ELS_REQ: /* extended link services request */
16191 case FC_RCTL_ELS_REP: /* extended link services reply */
16192 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
16193 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
16194 case FC_RCTL_BA_NOP: /* basic link service NOP */
16195 case FC_RCTL_BA_ABTS: /* basic link service abort */
16196 case FC_RCTL_BA_RMC: /* remove connection */
16197 case FC_RCTL_BA_ACC: /* basic accept */
16198 case FC_RCTL_BA_RJT: /* basic reject */
16199 case FC_RCTL_BA_PRMT:
16200 case FC_RCTL_ACK_1: /* acknowledge_1 */
16201 case FC_RCTL_ACK_0: /* acknowledge_0 */
16202 case FC_RCTL_P_RJT: /* port reject */
16203 case FC_RCTL_F_RJT: /* fabric reject */
16204 case FC_RCTL_P_BSY: /* port busy */
16205 case FC_RCTL_F_BSY: /* fabric busy to data frame */
16206 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
16207 case FC_RCTL_LCR: /* link credit reset */
16208 case FC_RCTL_MDS_DIAGS: /* MDS Diagnostics */
16209 case FC_RCTL_END: /* end */
16211 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
16212 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
16213 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
16214 return lpfc_fc_frame_check(phba, fc_hdr);
16219 #define FC_TYPE_VENDOR_UNIQUE 0xFF
16221 switch (fc_hdr->fh_type) {
16227 case FC_TYPE_VENDOR_UNIQUE:
16235 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
16236 "2538 Received frame rctl:x%x, type:x%x, "
16237 "frame Data:%08x %08x %08x %08x %08x %08x %08x\n",
16238 fc_hdr->fh_r_ctl, fc_hdr->fh_type,
16239 be32_to_cpu(header[0]), be32_to_cpu(header[1]),
16240 be32_to_cpu(header[2]), be32_to_cpu(header[3]),
16241 be32_to_cpu(header[4]), be32_to_cpu(header[5]),
16242 be32_to_cpu(header[6]));
16245 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
16246 "2539 Dropped frame rctl:x%x type:x%x\n",
16247 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
16252 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
16253 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
16255 * This function processes the FC header to retrieve the VFI from the VF
16256 * header, if one exists. This function will return the VFI if one exists
16257 * or 0 if no VSAN Header exists.
16260 lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
16262 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
16264 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
16266 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
16270 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
16271 * @phba: Pointer to the HBA structure to search for the vport on
16272 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
16273 * @fcfi: The FC Fabric ID that the frame came from
16275 * This function searches the @phba for a vport that matches the content of the
16276 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
16277 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
16278 * returns the matching vport pointer or NULL if unable to match frame to a
16281 static struct lpfc_vport *
16282 lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
16283 uint16_t fcfi, uint32_t did)
16285 struct lpfc_vport **vports;
16286 struct lpfc_vport *vport = NULL;
16289 if (did == Fabric_DID)
16290 return phba->pport;
16291 if ((phba->pport->fc_flag & FC_PT2PT) &&
16292 !(phba->link_state == LPFC_HBA_READY))
16293 return phba->pport;
16295 vports = lpfc_create_vport_work_array(phba);
16296 if (vports != NULL) {
16297 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
16298 if (phba->fcf.fcfi == fcfi &&
16299 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
16300 vports[i]->fc_myDID == did) {
16306 lpfc_destroy_vport_work_array(phba, vports);
16311 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
16312 * @vport: The vport to work on.
16314 * This function updates the receive sequence time stamp for this vport. The
16315 * receive sequence time stamp indicates the time that the last frame of the
16316 * the sequence that has been idle for the longest amount of time was received.
16317 * the driver uses this time stamp to indicate if any received sequences have
16321 lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
16323 struct lpfc_dmabuf *h_buf;
16324 struct hbq_dmabuf *dmabuf = NULL;
16326 /* get the oldest sequence on the rcv list */
16327 h_buf = list_get_first(&vport->rcv_buffer_list,
16328 struct lpfc_dmabuf, list);
16331 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
16332 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
16336 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
16337 * @vport: The vport that the received sequences were sent to.
16339 * This function cleans up all outstanding received sequences. This is called
16340 * by the driver when a link event or user action invalidates all the received
16344 lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
16346 struct lpfc_dmabuf *h_buf, *hnext;
16347 struct lpfc_dmabuf *d_buf, *dnext;
16348 struct hbq_dmabuf *dmabuf = NULL;
16350 /* start with the oldest sequence on the rcv list */
16351 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
16352 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
16353 list_del_init(&dmabuf->hbuf.list);
16354 list_for_each_entry_safe(d_buf, dnext,
16355 &dmabuf->dbuf.list, list) {
16356 list_del_init(&d_buf->list);
16357 lpfc_in_buf_free(vport->phba, d_buf);
16359 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
16364 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
16365 * @vport: The vport that the received sequences were sent to.
16367 * This function determines whether any received sequences have timed out by
16368 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
16369 * indicates that there is at least one timed out sequence this routine will
16370 * go through the received sequences one at a time from most inactive to most
16371 * active to determine which ones need to be cleaned up. Once it has determined
16372 * that a sequence needs to be cleaned up it will simply free up the resources
16373 * without sending an abort.
16376 lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
16378 struct lpfc_dmabuf *h_buf, *hnext;
16379 struct lpfc_dmabuf *d_buf, *dnext;
16380 struct hbq_dmabuf *dmabuf = NULL;
16381 unsigned long timeout;
16382 int abort_count = 0;
16384 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
16385 vport->rcv_buffer_time_stamp);
16386 if (list_empty(&vport->rcv_buffer_list) ||
16387 time_before(jiffies, timeout))
16389 /* start with the oldest sequence on the rcv list */
16390 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
16391 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
16392 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
16393 dmabuf->time_stamp);
16394 if (time_before(jiffies, timeout))
16397 list_del_init(&dmabuf->hbuf.list);
16398 list_for_each_entry_safe(d_buf, dnext,
16399 &dmabuf->dbuf.list, list) {
16400 list_del_init(&d_buf->list);
16401 lpfc_in_buf_free(vport->phba, d_buf);
16403 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
16406 lpfc_update_rcv_time_stamp(vport);
16410 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
16411 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
16413 * This function searches through the existing incomplete sequences that have
16414 * been sent to this @vport. If the frame matches one of the incomplete
16415 * sequences then the dbuf in the @dmabuf is added to the list of frames that
16416 * make up that sequence. If no sequence is found that matches this frame then
16417 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
16418 * This function returns a pointer to the first dmabuf in the sequence list that
16419 * the frame was linked to.
16421 static struct hbq_dmabuf *
16422 lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
16424 struct fc_frame_header *new_hdr;
16425 struct fc_frame_header *temp_hdr;
16426 struct lpfc_dmabuf *d_buf;
16427 struct lpfc_dmabuf *h_buf;
16428 struct hbq_dmabuf *seq_dmabuf = NULL;
16429 struct hbq_dmabuf *temp_dmabuf = NULL;
16432 INIT_LIST_HEAD(&dmabuf->dbuf.list);
16433 dmabuf->time_stamp = jiffies;
16434 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
16436 /* Use the hdr_buf to find the sequence that this frame belongs to */
16437 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
16438 temp_hdr = (struct fc_frame_header *)h_buf->virt;
16439 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
16440 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
16441 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
16443 /* found a pending sequence that matches this frame */
16444 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
16449 * This indicates first frame received for this sequence.
16450 * Queue the buffer on the vport's rcv_buffer_list.
16452 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
16453 lpfc_update_rcv_time_stamp(vport);
16456 temp_hdr = seq_dmabuf->hbuf.virt;
16457 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
16458 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
16459 list_del_init(&seq_dmabuf->hbuf.list);
16460 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
16461 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
16462 lpfc_update_rcv_time_stamp(vport);
16465 /* move this sequence to the tail to indicate a young sequence */
16466 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
16467 seq_dmabuf->time_stamp = jiffies;
16468 lpfc_update_rcv_time_stamp(vport);
16469 if (list_empty(&seq_dmabuf->dbuf.list)) {
16470 temp_hdr = dmabuf->hbuf.virt;
16471 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
16474 /* find the correct place in the sequence to insert this frame */
16475 d_buf = list_entry(seq_dmabuf->dbuf.list.prev, typeof(*d_buf), list);
16477 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
16478 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
16480 * If the frame's sequence count is greater than the frame on
16481 * the list then insert the frame right after this frame
16483 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
16484 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
16485 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
16490 if (&d_buf->list == &seq_dmabuf->dbuf.list)
16492 d_buf = list_entry(d_buf->list.prev, typeof(*d_buf), list);
16501 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
16502 * @vport: pointer to a vitural port
16503 * @dmabuf: pointer to a dmabuf that describes the FC sequence
16505 * This function tries to abort from the partially assembed sequence, described
16506 * by the information from basic abbort @dmabuf. It checks to see whether such
16507 * partially assembled sequence held by the driver. If so, it shall free up all
16508 * the frames from the partially assembled sequence.
16511 * true -- if there is matching partially assembled sequence present and all
16512 * the frames freed with the sequence;
16513 * false -- if there is no matching partially assembled sequence present so
16514 * nothing got aborted in the lower layer driver
16517 lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
16518 struct hbq_dmabuf *dmabuf)
16520 struct fc_frame_header *new_hdr;
16521 struct fc_frame_header *temp_hdr;
16522 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
16523 struct hbq_dmabuf *seq_dmabuf = NULL;
16525 /* Use the hdr_buf to find the sequence that matches this frame */
16526 INIT_LIST_HEAD(&dmabuf->dbuf.list);
16527 INIT_LIST_HEAD(&dmabuf->hbuf.list);
16528 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
16529 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
16530 temp_hdr = (struct fc_frame_header *)h_buf->virt;
16531 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
16532 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
16533 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
16535 /* found a pending sequence that matches this frame */
16536 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
16540 /* Free up all the frames from the partially assembled sequence */
16542 list_for_each_entry_safe(d_buf, n_buf,
16543 &seq_dmabuf->dbuf.list, list) {
16544 list_del_init(&d_buf->list);
16545 lpfc_in_buf_free(vport->phba, d_buf);
16553 * lpfc_sli4_abort_ulp_seq - Abort assembled unsol sequence from ulp
16554 * @vport: pointer to a vitural port
16555 * @dmabuf: pointer to a dmabuf that describes the FC sequence
16557 * This function tries to abort from the assembed sequence from upper level
16558 * protocol, described by the information from basic abbort @dmabuf. It
16559 * checks to see whether such pending context exists at upper level protocol.
16560 * If so, it shall clean up the pending context.
16563 * true -- if there is matching pending context of the sequence cleaned
16565 * false -- if there is no matching pending context of the sequence present
16569 lpfc_sli4_abort_ulp_seq(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
16571 struct lpfc_hba *phba = vport->phba;
16574 /* Accepting abort at ulp with SLI4 only */
16575 if (phba->sli_rev < LPFC_SLI_REV4)
16578 /* Register all caring upper level protocols to attend abort */
16579 handled = lpfc_ct_handle_unsol_abort(phba, dmabuf);
16587 * lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler
16588 * @phba: Pointer to HBA context object.
16589 * @cmd_iocbq: pointer to the command iocbq structure.
16590 * @rsp_iocbq: pointer to the response iocbq structure.
16592 * This function handles the sequence abort response iocb command complete
16593 * event. It properly releases the memory allocated to the sequence abort
16597 lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba *phba,
16598 struct lpfc_iocbq *cmd_iocbq,
16599 struct lpfc_iocbq *rsp_iocbq)
16601 struct lpfc_nodelist *ndlp;
16604 ndlp = (struct lpfc_nodelist *)cmd_iocbq->context1;
16605 lpfc_nlp_put(ndlp);
16606 lpfc_nlp_not_used(ndlp);
16607 lpfc_sli_release_iocbq(phba, cmd_iocbq);
16610 /* Failure means BLS ABORT RSP did not get delivered to remote node*/
16611 if (rsp_iocbq && rsp_iocbq->iocb.ulpStatus)
16612 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16613 "3154 BLS ABORT RSP failed, data: x%x/x%x\n",
16614 rsp_iocbq->iocb.ulpStatus,
16615 rsp_iocbq->iocb.un.ulpWord[4]);
16619 * lpfc_sli4_xri_inrange - check xri is in range of xris owned by driver.
16620 * @phba: Pointer to HBA context object.
16621 * @xri: xri id in transaction.
16623 * This function validates the xri maps to the known range of XRIs allocated an
16624 * used by the driver.
16627 lpfc_sli4_xri_inrange(struct lpfc_hba *phba,
16632 for (i = 0; i < phba->sli4_hba.max_cfg_param.max_xri; i++) {
16633 if (xri == phba->sli4_hba.xri_ids[i])
16640 * lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort
16641 * @phba: Pointer to HBA context object.
16642 * @fc_hdr: pointer to a FC frame header.
16644 * This function sends a basic response to a previous unsol sequence abort
16645 * event after aborting the sequence handling.
16648 lpfc_sli4_seq_abort_rsp(struct lpfc_vport *vport,
16649 struct fc_frame_header *fc_hdr, bool aborted)
16651 struct lpfc_hba *phba = vport->phba;
16652 struct lpfc_iocbq *ctiocb = NULL;
16653 struct lpfc_nodelist *ndlp;
16654 uint16_t oxid, rxid, xri, lxri;
16655 uint32_t sid, fctl;
16659 if (!lpfc_is_link_up(phba))
16662 sid = sli4_sid_from_fc_hdr(fc_hdr);
16663 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
16664 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
16666 ndlp = lpfc_findnode_did(vport, sid);
16668 ndlp = lpfc_nlp_init(vport, sid);
16670 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
16671 "1268 Failed to allocate ndlp for "
16672 "oxid:x%x SID:x%x\n", oxid, sid);
16675 /* Put ndlp onto pport node list */
16676 lpfc_enqueue_node(vport, ndlp);
16677 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
16678 /* re-setup ndlp without removing from node list */
16679 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
16681 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
16682 "3275 Failed to active ndlp found "
16683 "for oxid:x%x SID:x%x\n", oxid, sid);
16688 /* Allocate buffer for rsp iocb */
16689 ctiocb = lpfc_sli_get_iocbq(phba);
16693 /* Extract the F_CTL field from FC_HDR */
16694 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
16696 icmd = &ctiocb->iocb;
16697 icmd->un.xseq64.bdl.bdeSize = 0;
16698 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
16699 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
16700 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
16701 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
16703 /* Fill in the rest of iocb fields */
16704 icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
16705 icmd->ulpBdeCount = 0;
16707 icmd->ulpClass = CLASS3;
16708 icmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
16709 ctiocb->context1 = lpfc_nlp_get(ndlp);
16711 ctiocb->iocb_cmpl = NULL;
16712 ctiocb->vport = phba->pport;
16713 ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_rsp_cmpl;
16714 ctiocb->sli4_lxritag = NO_XRI;
16715 ctiocb->sli4_xritag = NO_XRI;
16717 if (fctl & FC_FC_EX_CTX)
16718 /* Exchange responder sent the abort so we
16724 lxri = lpfc_sli4_xri_inrange(phba, xri);
16725 if (lxri != NO_XRI)
16726 lpfc_set_rrq_active(phba, ndlp, lxri,
16727 (xri == oxid) ? rxid : oxid, 0);
16728 /* For BA_ABTS from exchange responder, if the logical xri with
16729 * the oxid maps to the FCP XRI range, the port no longer has
16730 * that exchange context, send a BLS_RJT. Override the IOCB for
16733 if ((fctl & FC_FC_EX_CTX) &&
16734 (lxri > lpfc_sli4_get_iocb_cnt(phba))) {
16735 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
16736 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
16737 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
16738 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
16741 /* If BA_ABTS failed to abort a partially assembled receive sequence,
16742 * the driver no longer has that exchange, send a BLS_RJT. Override
16743 * the IOCB for a BA_RJT.
16745 if (aborted == false) {
16746 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
16747 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
16748 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
16749 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
16752 if (fctl & FC_FC_EX_CTX) {
16753 /* ABTS sent by responder to CT exchange, construction
16754 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
16755 * field and RX_ID from ABTS for RX_ID field.
16757 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_RSP);
16759 /* ABTS sent by initiator to CT exchange, construction
16760 * of BA_ACC will need to allocate a new XRI as for the
16763 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_INT);
16765 bf_set(lpfc_abts_rxid, &icmd->un.bls_rsp, rxid);
16766 bf_set(lpfc_abts_oxid, &icmd->un.bls_rsp, oxid);
16768 /* Xmit CT abts response on exchange <xid> */
16769 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
16770 "1200 Send BLS cmd x%x on oxid x%x Data: x%x\n",
16771 icmd->un.xseq64.w5.hcsw.Rctl, oxid, phba->link_state);
16773 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
16774 if (rc == IOCB_ERROR) {
16775 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
16776 "2925 Failed to issue CT ABTS RSP x%x on "
16777 "xri x%x, Data x%x\n",
16778 icmd->un.xseq64.w5.hcsw.Rctl, oxid,
16780 lpfc_nlp_put(ndlp);
16781 ctiocb->context1 = NULL;
16782 lpfc_sli_release_iocbq(phba, ctiocb);
16787 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
16788 * @vport: Pointer to the vport on which this sequence was received
16789 * @dmabuf: pointer to a dmabuf that describes the FC sequence
16791 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
16792 * receive sequence is only partially assembed by the driver, it shall abort
16793 * the partially assembled frames for the sequence. Otherwise, if the
16794 * unsolicited receive sequence has been completely assembled and passed to
16795 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
16796 * unsolicited sequence has been aborted. After that, it will issue a basic
16797 * accept to accept the abort.
16800 lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
16801 struct hbq_dmabuf *dmabuf)
16803 struct lpfc_hba *phba = vport->phba;
16804 struct fc_frame_header fc_hdr;
16808 /* Make a copy of fc_hdr before the dmabuf being released */
16809 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
16810 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
16812 if (fctl & FC_FC_EX_CTX) {
16813 /* ABTS by responder to exchange, no cleanup needed */
16816 /* ABTS by initiator to exchange, need to do cleanup */
16817 aborted = lpfc_sli4_abort_partial_seq(vport, dmabuf);
16818 if (aborted == false)
16819 aborted = lpfc_sli4_abort_ulp_seq(vport, dmabuf);
16821 lpfc_in_buf_free(phba, &dmabuf->dbuf);
16823 if (phba->nvmet_support) {
16824 lpfc_nvmet_rcv_unsol_abort(vport, &fc_hdr);
16828 /* Respond with BA_ACC or BA_RJT accordingly */
16829 lpfc_sli4_seq_abort_rsp(vport, &fc_hdr, aborted);
16833 * lpfc_seq_complete - Indicates if a sequence is complete
16834 * @dmabuf: pointer to a dmabuf that describes the FC sequence
16836 * This function checks the sequence, starting with the frame described by
16837 * @dmabuf, to see if all the frames associated with this sequence are present.
16838 * the frames associated with this sequence are linked to the @dmabuf using the
16839 * dbuf list. This function looks for two major things. 1) That the first frame
16840 * has a sequence count of zero. 2) There is a frame with last frame of sequence
16841 * set. 3) That there are no holes in the sequence count. The function will
16842 * return 1 when the sequence is complete, otherwise it will return 0.
16845 lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
16847 struct fc_frame_header *hdr;
16848 struct lpfc_dmabuf *d_buf;
16849 struct hbq_dmabuf *seq_dmabuf;
16853 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
16854 /* make sure first fame of sequence has a sequence count of zero */
16855 if (hdr->fh_seq_cnt != seq_count)
16857 fctl = (hdr->fh_f_ctl[0] << 16 |
16858 hdr->fh_f_ctl[1] << 8 |
16860 /* If last frame of sequence we can return success. */
16861 if (fctl & FC_FC_END_SEQ)
16863 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
16864 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
16865 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
16866 /* If there is a hole in the sequence count then fail. */
16867 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
16869 fctl = (hdr->fh_f_ctl[0] << 16 |
16870 hdr->fh_f_ctl[1] << 8 |
16872 /* If last frame of sequence we can return success. */
16873 if (fctl & FC_FC_END_SEQ)
16880 * lpfc_prep_seq - Prep sequence for ULP processing
16881 * @vport: Pointer to the vport on which this sequence was received
16882 * @dmabuf: pointer to a dmabuf that describes the FC sequence
16884 * This function takes a sequence, described by a list of frames, and creates
16885 * a list of iocbq structures to describe the sequence. This iocbq list will be
16886 * used to issue to the generic unsolicited sequence handler. This routine
16887 * returns a pointer to the first iocbq in the list. If the function is unable
16888 * to allocate an iocbq then it throw out the received frames that were not
16889 * able to be described and return a pointer to the first iocbq. If unable to
16890 * allocate any iocbqs (including the first) this function will return NULL.
16892 static struct lpfc_iocbq *
16893 lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
16895 struct hbq_dmabuf *hbq_buf;
16896 struct lpfc_dmabuf *d_buf, *n_buf;
16897 struct lpfc_iocbq *first_iocbq, *iocbq;
16898 struct fc_frame_header *fc_hdr;
16900 uint32_t len, tot_len;
16901 struct ulp_bde64 *pbde;
16903 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
16904 /* remove from receive buffer list */
16905 list_del_init(&seq_dmabuf->hbuf.list);
16906 lpfc_update_rcv_time_stamp(vport);
16907 /* get the Remote Port's SID */
16908 sid = sli4_sid_from_fc_hdr(fc_hdr);
16910 /* Get an iocbq struct to fill in. */
16911 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
16913 /* Initialize the first IOCB. */
16914 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
16915 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
16916 first_iocbq->vport = vport;
16918 /* Check FC Header to see what TYPE of frame we are rcv'ing */
16919 if (sli4_type_from_fc_hdr(fc_hdr) == FC_TYPE_ELS) {
16920 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_ELS64_CX;
16921 first_iocbq->iocb.un.rcvels.parmRo =
16922 sli4_did_from_fc_hdr(fc_hdr);
16923 first_iocbq->iocb.ulpPU = PARM_NPIV_DID;
16925 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
16926 first_iocbq->iocb.ulpContext = NO_XRI;
16927 first_iocbq->iocb.unsli3.rcvsli3.ox_id =
16928 be16_to_cpu(fc_hdr->fh_ox_id);
16929 /* iocbq is prepped for internal consumption. Physical vpi. */
16930 first_iocbq->iocb.unsli3.rcvsli3.vpi =
16931 vport->phba->vpi_ids[vport->vpi];
16932 /* put the first buffer into the first IOCBq */
16933 tot_len = bf_get(lpfc_rcqe_length,
16934 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
16936 first_iocbq->context2 = &seq_dmabuf->dbuf;
16937 first_iocbq->context3 = NULL;
16938 first_iocbq->iocb.ulpBdeCount = 1;
16939 if (tot_len > LPFC_DATA_BUF_SIZE)
16940 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
16941 LPFC_DATA_BUF_SIZE;
16943 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize = tot_len;
16945 first_iocbq->iocb.un.rcvels.remoteID = sid;
16947 first_iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
16949 iocbq = first_iocbq;
16951 * Each IOCBq can have two Buffers assigned, so go through the list
16952 * of buffers for this sequence and save two buffers in each IOCBq
16954 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
16956 lpfc_in_buf_free(vport->phba, d_buf);
16959 if (!iocbq->context3) {
16960 iocbq->context3 = d_buf;
16961 iocbq->iocb.ulpBdeCount++;
16962 /* We need to get the size out of the right CQE */
16963 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
16964 len = bf_get(lpfc_rcqe_length,
16965 &hbq_buf->cq_event.cqe.rcqe_cmpl);
16966 pbde = (struct ulp_bde64 *)
16967 &iocbq->iocb.unsli3.sli3Words[4];
16968 if (len > LPFC_DATA_BUF_SIZE)
16969 pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
16971 pbde->tus.f.bdeSize = len;
16973 iocbq->iocb.unsli3.rcvsli3.acc_len += len;
16976 iocbq = lpfc_sli_get_iocbq(vport->phba);
16979 first_iocbq->iocb.ulpStatus =
16980 IOSTAT_FCP_RSP_ERROR;
16981 first_iocbq->iocb.un.ulpWord[4] =
16982 IOERR_NO_RESOURCES;
16984 lpfc_in_buf_free(vport->phba, d_buf);
16987 /* We need to get the size out of the right CQE */
16988 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
16989 len = bf_get(lpfc_rcqe_length,
16990 &hbq_buf->cq_event.cqe.rcqe_cmpl);
16991 iocbq->context2 = d_buf;
16992 iocbq->context3 = NULL;
16993 iocbq->iocb.ulpBdeCount = 1;
16994 if (len > LPFC_DATA_BUF_SIZE)
16995 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
16996 LPFC_DATA_BUF_SIZE;
16998 iocbq->iocb.un.cont64[0].tus.f.bdeSize = len;
17001 iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
17003 iocbq->iocb.un.rcvels.remoteID = sid;
17004 list_add_tail(&iocbq->list, &first_iocbq->list);
17007 return first_iocbq;
17011 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
17012 struct hbq_dmabuf *seq_dmabuf)
17014 struct fc_frame_header *fc_hdr;
17015 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
17016 struct lpfc_hba *phba = vport->phba;
17018 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
17019 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
17021 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17022 "2707 Ring %d handler: Failed to allocate "
17023 "iocb Rctl x%x Type x%x received\n",
17025 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
17028 if (!lpfc_complete_unsol_iocb(phba,
17029 phba->sli4_hba.els_wq->pring,
17030 iocbq, fc_hdr->fh_r_ctl,
17032 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17033 "2540 Ring %d handler: unexpected Rctl "
17034 "x%x Type x%x received\n",
17036 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
17038 /* Free iocb created in lpfc_prep_seq */
17039 list_for_each_entry_safe(curr_iocb, next_iocb,
17040 &iocbq->list, list) {
17041 list_del_init(&curr_iocb->list);
17042 lpfc_sli_release_iocbq(phba, curr_iocb);
17044 lpfc_sli_release_iocbq(phba, iocbq);
17048 lpfc_sli4_mds_loopback_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
17049 struct lpfc_iocbq *rspiocb)
17051 struct lpfc_dmabuf *pcmd = cmdiocb->context2;
17053 if (pcmd && pcmd->virt)
17054 pci_pool_free(phba->lpfc_drb_pool, pcmd->virt, pcmd->phys);
17056 lpfc_sli_release_iocbq(phba, cmdiocb);
17060 lpfc_sli4_handle_mds_loopback(struct lpfc_vport *vport,
17061 struct hbq_dmabuf *dmabuf)
17063 struct fc_frame_header *fc_hdr;
17064 struct lpfc_hba *phba = vport->phba;
17065 struct lpfc_iocbq *iocbq = NULL;
17066 union lpfc_wqe *wqe;
17067 struct lpfc_dmabuf *pcmd = NULL;
17068 uint32_t frame_len;
17071 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
17072 frame_len = bf_get(lpfc_rcqe_length, &dmabuf->cq_event.cqe.rcqe_cmpl);
17074 /* Send the received frame back */
17075 iocbq = lpfc_sli_get_iocbq(phba);
17079 /* Allocate buffer for command payload */
17080 pcmd = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
17082 pcmd->virt = pci_pool_alloc(phba->lpfc_drb_pool, GFP_KERNEL,
17084 if (!pcmd || !pcmd->virt)
17087 INIT_LIST_HEAD(&pcmd->list);
17089 /* copyin the payload */
17090 memcpy(pcmd->virt, dmabuf->dbuf.virt, frame_len);
17092 /* fill in BDE's for command */
17093 iocbq->iocb.un.xseq64.bdl.addrHigh = putPaddrHigh(pcmd->phys);
17094 iocbq->iocb.un.xseq64.bdl.addrLow = putPaddrLow(pcmd->phys);
17095 iocbq->iocb.un.xseq64.bdl.bdeFlags = BUFF_TYPE_BDE_64;
17096 iocbq->iocb.un.xseq64.bdl.bdeSize = frame_len;
17098 iocbq->context2 = pcmd;
17099 iocbq->vport = vport;
17100 iocbq->iocb_flag &= ~LPFC_FIP_ELS_ID_MASK;
17101 iocbq->iocb_flag |= LPFC_USE_FCPWQIDX;
17104 * Setup rest of the iocb as though it were a WQE
17105 * Build the SEND_FRAME WQE
17107 wqe = (union lpfc_wqe *)&iocbq->iocb;
17109 wqe->send_frame.frame_len = frame_len;
17110 wqe->send_frame.fc_hdr_wd0 = be32_to_cpu(*((uint32_t *)fc_hdr));
17111 wqe->send_frame.fc_hdr_wd1 = be32_to_cpu(*((uint32_t *)fc_hdr + 1));
17112 wqe->send_frame.fc_hdr_wd2 = be32_to_cpu(*((uint32_t *)fc_hdr + 2));
17113 wqe->send_frame.fc_hdr_wd3 = be32_to_cpu(*((uint32_t *)fc_hdr + 3));
17114 wqe->send_frame.fc_hdr_wd4 = be32_to_cpu(*((uint32_t *)fc_hdr + 4));
17115 wqe->send_frame.fc_hdr_wd5 = be32_to_cpu(*((uint32_t *)fc_hdr + 5));
17117 iocbq->iocb.ulpCommand = CMD_SEND_FRAME;
17118 iocbq->iocb.ulpLe = 1;
17119 iocbq->iocb_cmpl = lpfc_sli4_mds_loopback_cmpl;
17120 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocbq, 0);
17121 if (rc == IOCB_ERROR)
17124 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17128 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
17129 "2023 Unable to process MDS loopback frame\n");
17130 if (pcmd && pcmd->virt)
17131 pci_pool_free(phba->lpfc_drb_pool, pcmd->virt, pcmd->phys);
17133 lpfc_sli_release_iocbq(phba, iocbq);
17134 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17138 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
17139 * @phba: Pointer to HBA context object.
17141 * This function is called with no lock held. This function processes all
17142 * the received buffers and gives it to upper layers when a received buffer
17143 * indicates that it is the final frame in the sequence. The interrupt
17144 * service routine processes received buffers at interrupt contexts.
17145 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
17146 * appropriate receive function when the final frame in a sequence is received.
17149 lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
17150 struct hbq_dmabuf *dmabuf)
17152 struct hbq_dmabuf *seq_dmabuf;
17153 struct fc_frame_header *fc_hdr;
17154 struct lpfc_vport *vport;
17158 /* Process each received buffer */
17159 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
17161 /* check to see if this a valid type of frame */
17162 if (lpfc_fc_frame_check(phba, fc_hdr)) {
17163 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17167 if ((bf_get(lpfc_cqe_code,
17168 &dmabuf->cq_event.cqe.rcqe_cmpl) == CQE_CODE_RECEIVE_V1))
17169 fcfi = bf_get(lpfc_rcqe_fcf_id_v1,
17170 &dmabuf->cq_event.cqe.rcqe_cmpl);
17172 fcfi = bf_get(lpfc_rcqe_fcf_id,
17173 &dmabuf->cq_event.cqe.rcqe_cmpl);
17175 if (fc_hdr->fh_r_ctl == 0xF4 && fc_hdr->fh_type == 0xFF) {
17176 vport = phba->pport;
17177 /* Handle MDS Loopback frames */
17178 lpfc_sli4_handle_mds_loopback(vport, dmabuf);
17182 /* d_id this frame is directed to */
17183 did = sli4_did_from_fc_hdr(fc_hdr);
17185 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi, did);
17187 /* throw out the frame */
17188 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17192 /* vport is registered unless we rcv a FLOGI directed to Fabric_DID */
17193 if (!(vport->vpi_state & LPFC_VPI_REGISTERED) &&
17194 (did != Fabric_DID)) {
17196 * Throw out the frame if we are not pt2pt.
17197 * The pt2pt protocol allows for discovery frames
17198 * to be received without a registered VPI.
17200 if (!(vport->fc_flag & FC_PT2PT) ||
17201 (phba->link_state == LPFC_HBA_READY)) {
17202 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17207 /* Handle the basic abort sequence (BA_ABTS) event */
17208 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
17209 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
17213 /* Link this frame */
17214 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
17216 /* unable to add frame to vport - throw it out */
17217 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17220 /* If not last frame in sequence continue processing frames. */
17221 if (!lpfc_seq_complete(seq_dmabuf))
17224 /* Send the complete sequence to the upper layer protocol */
17225 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
17229 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
17230 * @phba: pointer to lpfc hba data structure.
17232 * This routine is invoked to post rpi header templates to the
17233 * HBA consistent with the SLI-4 interface spec. This routine
17234 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
17235 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
17237 * This routine does not require any locks. It's usage is expected
17238 * to be driver load or reset recovery when the driver is
17243 * -EIO - The mailbox failed to complete successfully.
17244 * When this error occurs, the driver is not guaranteed
17245 * to have any rpi regions posted to the device and
17246 * must either attempt to repost the regions or take a
17250 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
17252 struct lpfc_rpi_hdr *rpi_page;
17256 /* SLI4 ports that support extents do not require RPI headers. */
17257 if (!phba->sli4_hba.rpi_hdrs_in_use)
17259 if (phba->sli4_hba.extents_in_use)
17262 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
17264 * Assign the rpi headers a physical rpi only if the driver
17265 * has not initialized those resources. A port reset only
17266 * needs the headers posted.
17268 if (bf_get(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags) !=
17270 rpi_page->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
17272 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
17273 if (rc != MBX_SUCCESS) {
17274 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17275 "2008 Error %d posting all rpi "
17283 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags,
17284 LPFC_RPI_RSRC_RDY);
17289 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
17290 * @phba: pointer to lpfc hba data structure.
17291 * @rpi_page: pointer to the rpi memory region.
17293 * This routine is invoked to post a single rpi header to the
17294 * HBA consistent with the SLI-4 interface spec. This memory region
17295 * maps up to 64 rpi context regions.
17299 * -ENOMEM - No available memory
17300 * -EIO - The mailbox failed to complete successfully.
17303 lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
17305 LPFC_MBOXQ_t *mboxq;
17306 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
17308 uint32_t shdr_status, shdr_add_status;
17309 union lpfc_sli4_cfg_shdr *shdr;
17311 /* SLI4 ports that support extents do not require RPI headers. */
17312 if (!phba->sli4_hba.rpi_hdrs_in_use)
17314 if (phba->sli4_hba.extents_in_use)
17317 /* The port is notified of the header region via a mailbox command. */
17318 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17320 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17321 "2001 Unable to allocate memory for issuing "
17322 "SLI_CONFIG_SPECIAL mailbox command\n");
17326 /* Post all rpi memory regions to the port. */
17327 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
17328 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
17329 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
17330 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
17331 sizeof(struct lpfc_sli4_cfg_mhdr),
17332 LPFC_SLI4_MBX_EMBED);
17335 /* Post the physical rpi to the port for this rpi header. */
17336 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
17337 rpi_page->start_rpi);
17338 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
17339 hdr_tmpl, rpi_page->page_count);
17341 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
17342 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
17343 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
17344 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
17345 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17346 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17347 if (rc != MBX_TIMEOUT)
17348 mempool_free(mboxq, phba->mbox_mem_pool);
17349 if (shdr_status || shdr_add_status || rc) {
17350 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
17351 "2514 POST_RPI_HDR mailbox failed with "
17352 "status x%x add_status x%x, mbx status x%x\n",
17353 shdr_status, shdr_add_status, rc);
17357 * The next_rpi stores the next logical module-64 rpi value used
17358 * to post physical rpis in subsequent rpi postings.
17360 spin_lock_irq(&phba->hbalock);
17361 phba->sli4_hba.next_rpi = rpi_page->next_rpi;
17362 spin_unlock_irq(&phba->hbalock);
17368 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
17369 * @phba: pointer to lpfc hba data structure.
17371 * This routine is invoked to post rpi header templates to the
17372 * HBA consistent with the SLI-4 interface spec. This routine
17373 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
17374 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
17377 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
17378 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
17381 lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
17384 uint16_t max_rpi, rpi_limit;
17385 uint16_t rpi_remaining, lrpi = 0;
17386 struct lpfc_rpi_hdr *rpi_hdr;
17387 unsigned long iflag;
17390 * Fetch the next logical rpi. Because this index is logical,
17391 * the driver starts at 0 each time.
17393 spin_lock_irqsave(&phba->hbalock, iflag);
17394 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
17395 rpi_limit = phba->sli4_hba.next_rpi;
17397 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, 0);
17398 if (rpi >= rpi_limit)
17399 rpi = LPFC_RPI_ALLOC_ERROR;
17401 set_bit(rpi, phba->sli4_hba.rpi_bmask);
17402 phba->sli4_hba.max_cfg_param.rpi_used++;
17403 phba->sli4_hba.rpi_count++;
17405 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
17406 "0001 rpi:%x max:%x lim:%x\n",
17407 (int) rpi, max_rpi, rpi_limit);
17410 * Don't try to allocate more rpi header regions if the device limit
17411 * has been exhausted.
17413 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
17414 (phba->sli4_hba.rpi_count >= max_rpi)) {
17415 spin_unlock_irqrestore(&phba->hbalock, iflag);
17420 * RPI header postings are not required for SLI4 ports capable of
17423 if (!phba->sli4_hba.rpi_hdrs_in_use) {
17424 spin_unlock_irqrestore(&phba->hbalock, iflag);
17429 * If the driver is running low on rpi resources, allocate another
17430 * page now. Note that the next_rpi value is used because
17431 * it represents how many are actually in use whereas max_rpi notes
17432 * how many are supported max by the device.
17434 rpi_remaining = phba->sli4_hba.next_rpi - phba->sli4_hba.rpi_count;
17435 spin_unlock_irqrestore(&phba->hbalock, iflag);
17436 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
17437 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
17439 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17440 "2002 Error Could not grow rpi "
17443 lrpi = rpi_hdr->start_rpi;
17444 rpi_hdr->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
17445 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
17453 * lpfc_sli4_free_rpi - Release an rpi for reuse.
17454 * @phba: pointer to lpfc hba data structure.
17456 * This routine is invoked to release an rpi to the pool of
17457 * available rpis maintained by the driver.
17460 __lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
17462 if (test_and_clear_bit(rpi, phba->sli4_hba.rpi_bmask)) {
17463 phba->sli4_hba.rpi_count--;
17464 phba->sli4_hba.max_cfg_param.rpi_used--;
17469 * lpfc_sli4_free_rpi - Release an rpi for reuse.
17470 * @phba: pointer to lpfc hba data structure.
17472 * This routine is invoked to release an rpi to the pool of
17473 * available rpis maintained by the driver.
17476 lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
17478 spin_lock_irq(&phba->hbalock);
17479 __lpfc_sli4_free_rpi(phba, rpi);
17480 spin_unlock_irq(&phba->hbalock);
17484 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
17485 * @phba: pointer to lpfc hba data structure.
17487 * This routine is invoked to remove the memory region that
17488 * provided rpi via a bitmask.
17491 lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
17493 kfree(phba->sli4_hba.rpi_bmask);
17494 kfree(phba->sli4_hba.rpi_ids);
17495 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
17499 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
17500 * @phba: pointer to lpfc hba data structure.
17502 * This routine is invoked to remove the memory region that
17503 * provided rpi via a bitmask.
17506 lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp,
17507 void (*cmpl)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *arg)
17509 LPFC_MBOXQ_t *mboxq;
17510 struct lpfc_hba *phba = ndlp->phba;
17513 /* The port is notified of the header region via a mailbox command. */
17514 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17518 /* Post all rpi memory regions to the port. */
17519 lpfc_resume_rpi(mboxq, ndlp);
17521 mboxq->mbox_cmpl = cmpl;
17522 mboxq->context1 = arg;
17523 mboxq->context2 = ndlp;
17525 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
17526 mboxq->vport = ndlp->vport;
17527 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
17528 if (rc == MBX_NOT_FINISHED) {
17529 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17530 "2010 Resume RPI Mailbox failed "
17531 "status %d, mbxStatus x%x\n", rc,
17532 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
17533 mempool_free(mboxq, phba->mbox_mem_pool);
17540 * lpfc_sli4_init_vpi - Initialize a vpi with the port
17541 * @vport: Pointer to the vport for which the vpi is being initialized
17543 * This routine is invoked to activate a vpi with the port.
17547 * -Evalue otherwise
17550 lpfc_sli4_init_vpi(struct lpfc_vport *vport)
17552 LPFC_MBOXQ_t *mboxq;
17554 int retval = MBX_SUCCESS;
17556 struct lpfc_hba *phba = vport->phba;
17557 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17560 lpfc_init_vpi(phba, mboxq, vport->vpi);
17561 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
17562 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
17563 if (rc != MBX_SUCCESS) {
17564 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
17565 "2022 INIT VPI Mailbox failed "
17566 "status %d, mbxStatus x%x\n", rc,
17567 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
17570 if (rc != MBX_TIMEOUT)
17571 mempool_free(mboxq, vport->phba->mbox_mem_pool);
17577 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
17578 * @phba: pointer to lpfc hba data structure.
17579 * @mboxq: Pointer to mailbox object.
17581 * This routine is invoked to manually add a single FCF record. The caller
17582 * must pass a completely initialized FCF_Record. This routine takes
17583 * care of the nonembedded mailbox operations.
17586 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
17589 union lpfc_sli4_cfg_shdr *shdr;
17590 uint32_t shdr_status, shdr_add_status;
17592 virt_addr = mboxq->sge_array->addr[0];
17593 /* The IOCTL status is embedded in the mailbox subheader. */
17594 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
17595 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17596 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17598 if ((shdr_status || shdr_add_status) &&
17599 (shdr_status != STATUS_FCF_IN_USE))
17600 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
17601 "2558 ADD_FCF_RECORD mailbox failed with "
17602 "status x%x add_status x%x\n",
17603 shdr_status, shdr_add_status);
17605 lpfc_sli4_mbox_cmd_free(phba, mboxq);
17609 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
17610 * @phba: pointer to lpfc hba data structure.
17611 * @fcf_record: pointer to the initialized fcf record to add.
17613 * This routine is invoked to manually add a single FCF record. The caller
17614 * must pass a completely initialized FCF_Record. This routine takes
17615 * care of the nonembedded mailbox operations.
17618 lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
17621 LPFC_MBOXQ_t *mboxq;
17624 struct lpfc_mbx_sge sge;
17625 uint32_t alloc_len, req_len;
17628 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17630 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
17631 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
17635 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
17638 /* Allocate DMA memory and set up the non-embedded mailbox command */
17639 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
17640 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
17641 req_len, LPFC_SLI4_MBX_NEMBED);
17642 if (alloc_len < req_len) {
17643 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
17644 "2523 Allocated DMA memory size (x%x) is "
17645 "less than the requested DMA memory "
17646 "size (x%x)\n", alloc_len, req_len);
17647 lpfc_sli4_mbox_cmd_free(phba, mboxq);
17652 * Get the first SGE entry from the non-embedded DMA memory. This
17653 * routine only uses a single SGE.
17655 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
17656 virt_addr = mboxq->sge_array->addr[0];
17658 * Configure the FCF record for FCFI 0. This is the driver's
17659 * hardcoded default and gets used in nonFIP mode.
17661 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
17662 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
17663 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
17666 * Copy the fcf_index and the FCF Record Data. The data starts after
17667 * the FCoE header plus word10. The data copy needs to be endian
17670 bytep += sizeof(uint32_t);
17671 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
17672 mboxq->vport = phba->pport;
17673 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
17674 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
17675 if (rc == MBX_NOT_FINISHED) {
17676 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
17677 "2515 ADD_FCF_RECORD mailbox failed with "
17678 "status 0x%x\n", rc);
17679 lpfc_sli4_mbox_cmd_free(phba, mboxq);
17688 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
17689 * @phba: pointer to lpfc hba data structure.
17690 * @fcf_record: pointer to the fcf record to write the default data.
17691 * @fcf_index: FCF table entry index.
17693 * This routine is invoked to build the driver's default FCF record. The
17694 * values used are hardcoded. This routine handles memory initialization.
17698 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
17699 struct fcf_record *fcf_record,
17700 uint16_t fcf_index)
17702 memset(fcf_record, 0, sizeof(struct fcf_record));
17703 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
17704 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
17705 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
17706 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
17707 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
17708 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
17709 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
17710 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
17711 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
17712 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
17713 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
17714 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
17715 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
17716 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
17717 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
17718 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
17719 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
17720 /* Set the VLAN bit map */
17721 if (phba->valid_vlan) {
17722 fcf_record->vlan_bitmap[phba->vlan_id / 8]
17723 = 1 << (phba->vlan_id % 8);
17728 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
17729 * @phba: pointer to lpfc hba data structure.
17730 * @fcf_index: FCF table entry offset.
17732 * This routine is invoked to scan the entire FCF table by reading FCF
17733 * record and processing it one at a time starting from the @fcf_index
17734 * for initial FCF discovery or fast FCF failover rediscovery.
17736 * Return 0 if the mailbox command is submitted successfully, none 0
17740 lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
17743 LPFC_MBOXQ_t *mboxq;
17745 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
17746 phba->fcoe_cvl_eventtag_attn = phba->fcoe_cvl_eventtag;
17747 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17749 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
17750 "2000 Failed to allocate mbox for "
17753 goto fail_fcf_scan;
17755 /* Construct the read FCF record mailbox command */
17756 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
17759 goto fail_fcf_scan;
17761 /* Issue the mailbox command asynchronously */
17762 mboxq->vport = phba->pport;
17763 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
17765 spin_lock_irq(&phba->hbalock);
17766 phba->hba_flag |= FCF_TS_INPROG;
17767 spin_unlock_irq(&phba->hbalock);
17769 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
17770 if (rc == MBX_NOT_FINISHED)
17773 /* Reset eligible FCF count for new scan */
17774 if (fcf_index == LPFC_FCOE_FCF_GET_FIRST)
17775 phba->fcf.eligible_fcf_cnt = 0;
17781 lpfc_sli4_mbox_cmd_free(phba, mboxq);
17782 /* FCF scan failed, clear FCF_TS_INPROG flag */
17783 spin_lock_irq(&phba->hbalock);
17784 phba->hba_flag &= ~FCF_TS_INPROG;
17785 spin_unlock_irq(&phba->hbalock);
17791 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
17792 * @phba: pointer to lpfc hba data structure.
17793 * @fcf_index: FCF table entry offset.
17795 * This routine is invoked to read an FCF record indicated by @fcf_index
17796 * and to use it for FLOGI roundrobin FCF failover.
17798 * Return 0 if the mailbox command is submitted successfully, none 0
17802 lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
17805 LPFC_MBOXQ_t *mboxq;
17807 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17809 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
17810 "2763 Failed to allocate mbox for "
17813 goto fail_fcf_read;
17815 /* Construct the read FCF record mailbox command */
17816 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
17819 goto fail_fcf_read;
17821 /* Issue the mailbox command asynchronously */
17822 mboxq->vport = phba->pport;
17823 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
17824 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
17825 if (rc == MBX_NOT_FINISHED)
17831 if (error && mboxq)
17832 lpfc_sli4_mbox_cmd_free(phba, mboxq);
17837 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
17838 * @phba: pointer to lpfc hba data structure.
17839 * @fcf_index: FCF table entry offset.
17841 * This routine is invoked to read an FCF record indicated by @fcf_index to
17842 * determine whether it's eligible for FLOGI roundrobin failover list.
17844 * Return 0 if the mailbox command is submitted successfully, none 0
17848 lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
17851 LPFC_MBOXQ_t *mboxq;
17853 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17855 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
17856 "2758 Failed to allocate mbox for "
17859 goto fail_fcf_read;
17861 /* Construct the read FCF record mailbox command */
17862 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
17865 goto fail_fcf_read;
17867 /* Issue the mailbox command asynchronously */
17868 mboxq->vport = phba->pport;
17869 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
17870 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
17871 if (rc == MBX_NOT_FINISHED)
17877 if (error && mboxq)
17878 lpfc_sli4_mbox_cmd_free(phba, mboxq);
17883 * lpfc_check_next_fcf_pri_level
17884 * phba pointer to the lpfc_hba struct for this port.
17885 * This routine is called from the lpfc_sli4_fcf_rr_next_index_get
17886 * routine when the rr_bmask is empty. The FCF indecies are put into the
17887 * rr_bmask based on their priority level. Starting from the highest priority
17888 * to the lowest. The most likely FCF candidate will be in the highest
17889 * priority group. When this routine is called it searches the fcf_pri list for
17890 * next lowest priority group and repopulates the rr_bmask with only those
17893 * 1=success 0=failure
17896 lpfc_check_next_fcf_pri_level(struct lpfc_hba *phba)
17898 uint16_t next_fcf_pri;
17899 uint16_t last_index;
17900 struct lpfc_fcf_pri *fcf_pri;
17904 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
17905 LPFC_SLI4_FCF_TBL_INDX_MAX);
17906 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
17907 "3060 Last IDX %d\n", last_index);
17909 /* Verify the priority list has 2 or more entries */
17910 spin_lock_irq(&phba->hbalock);
17911 if (list_empty(&phba->fcf.fcf_pri_list) ||
17912 list_is_singular(&phba->fcf.fcf_pri_list)) {
17913 spin_unlock_irq(&phba->hbalock);
17914 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
17915 "3061 Last IDX %d\n", last_index);
17916 return 0; /* Empty rr list */
17918 spin_unlock_irq(&phba->hbalock);
17922 * Clear the rr_bmask and set all of the bits that are at this
17925 memset(phba->fcf.fcf_rr_bmask, 0,
17926 sizeof(*phba->fcf.fcf_rr_bmask));
17927 spin_lock_irq(&phba->hbalock);
17928 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
17929 if (fcf_pri->fcf_rec.flag & LPFC_FCF_FLOGI_FAILED)
17932 * the 1st priority that has not FLOGI failed
17933 * will be the highest.
17936 next_fcf_pri = fcf_pri->fcf_rec.priority;
17937 spin_unlock_irq(&phba->hbalock);
17938 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
17939 rc = lpfc_sli4_fcf_rr_index_set(phba,
17940 fcf_pri->fcf_rec.fcf_index);
17944 spin_lock_irq(&phba->hbalock);
17947 * if next_fcf_pri was not set above and the list is not empty then
17948 * we have failed flogis on all of them. So reset flogi failed
17949 * and start at the beginning.
17951 if (!next_fcf_pri && !list_empty(&phba->fcf.fcf_pri_list)) {
17952 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
17953 fcf_pri->fcf_rec.flag &= ~LPFC_FCF_FLOGI_FAILED;
17955 * the 1st priority that has not FLOGI failed
17956 * will be the highest.
17959 next_fcf_pri = fcf_pri->fcf_rec.priority;
17960 spin_unlock_irq(&phba->hbalock);
17961 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
17962 rc = lpfc_sli4_fcf_rr_index_set(phba,
17963 fcf_pri->fcf_rec.fcf_index);
17967 spin_lock_irq(&phba->hbalock);
17971 spin_unlock_irq(&phba->hbalock);
17976 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
17977 * @phba: pointer to lpfc hba data structure.
17979 * This routine is to get the next eligible FCF record index in a round
17980 * robin fashion. If the next eligible FCF record index equals to the
17981 * initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
17982 * shall be returned, otherwise, the next eligible FCF record's index
17983 * shall be returned.
17986 lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
17988 uint16_t next_fcf_index;
17991 /* Search start from next bit of currently registered FCF index */
17992 next_fcf_index = phba->fcf.current_rec.fcf_indx;
17995 /* Determine the next fcf index to check */
17996 next_fcf_index = (next_fcf_index + 1) % LPFC_SLI4_FCF_TBL_INDX_MAX;
17997 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
17998 LPFC_SLI4_FCF_TBL_INDX_MAX,
18001 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
18002 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
18004 * If we have wrapped then we need to clear the bits that
18005 * have been tested so that we can detect when we should
18006 * change the priority level.
18008 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
18009 LPFC_SLI4_FCF_TBL_INDX_MAX, 0);
18013 /* Check roundrobin failover list empty condition */
18014 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX ||
18015 next_fcf_index == phba->fcf.current_rec.fcf_indx) {
18017 * If next fcf index is not found check if there are lower
18018 * Priority level fcf's in the fcf_priority list.
18019 * Set up the rr_bmask with all of the avaiable fcf bits
18020 * at that level and continue the selection process.
18022 if (lpfc_check_next_fcf_pri_level(phba))
18023 goto initial_priority;
18024 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
18025 "2844 No roundrobin failover FCF available\n");
18026 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX)
18027 return LPFC_FCOE_FCF_NEXT_NONE;
18029 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
18030 "3063 Only FCF available idx %d, flag %x\n",
18032 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag);
18033 return next_fcf_index;
18037 if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX &&
18038 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag &
18039 LPFC_FCF_FLOGI_FAILED) {
18040 if (list_is_singular(&phba->fcf.fcf_pri_list))
18041 return LPFC_FCOE_FCF_NEXT_NONE;
18043 goto next_priority;
18046 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
18047 "2845 Get next roundrobin failover FCF (x%x)\n",
18050 return next_fcf_index;
18054 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
18055 * @phba: pointer to lpfc hba data structure.
18057 * This routine sets the FCF record index in to the eligible bmask for
18058 * roundrobin failover search. It checks to make sure that the index
18059 * does not go beyond the range of the driver allocated bmask dimension
18060 * before setting the bit.
18062 * Returns 0 if the index bit successfully set, otherwise, it returns
18066 lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
18068 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
18069 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
18070 "2610 FCF (x%x) reached driver's book "
18071 "keeping dimension:x%x\n",
18072 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
18075 /* Set the eligible FCF record index bmask */
18076 set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
18078 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
18079 "2790 Set FCF (x%x) to roundrobin FCF failover "
18080 "bmask\n", fcf_index);
18086 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
18087 * @phba: pointer to lpfc hba data structure.
18089 * This routine clears the FCF record index from the eligible bmask for
18090 * roundrobin failover search. It checks to make sure that the index
18091 * does not go beyond the range of the driver allocated bmask dimension
18092 * before clearing the bit.
18095 lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
18097 struct lpfc_fcf_pri *fcf_pri, *fcf_pri_next;
18098 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
18099 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
18100 "2762 FCF (x%x) reached driver's book "
18101 "keeping dimension:x%x\n",
18102 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
18105 /* Clear the eligible FCF record index bmask */
18106 spin_lock_irq(&phba->hbalock);
18107 list_for_each_entry_safe(fcf_pri, fcf_pri_next, &phba->fcf.fcf_pri_list,
18109 if (fcf_pri->fcf_rec.fcf_index == fcf_index) {
18110 list_del_init(&fcf_pri->list);
18114 spin_unlock_irq(&phba->hbalock);
18115 clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
18117 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
18118 "2791 Clear FCF (x%x) from roundrobin failover "
18119 "bmask\n", fcf_index);
18123 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
18124 * @phba: pointer to lpfc hba data structure.
18126 * This routine is the completion routine for the rediscover FCF table mailbox
18127 * command. If the mailbox command returned failure, it will try to stop the
18128 * FCF rediscover wait timer.
18131 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
18133 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
18134 uint32_t shdr_status, shdr_add_status;
18136 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
18138 shdr_status = bf_get(lpfc_mbox_hdr_status,
18139 &redisc_fcf->header.cfg_shdr.response);
18140 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
18141 &redisc_fcf->header.cfg_shdr.response);
18142 if (shdr_status || shdr_add_status) {
18143 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
18144 "2746 Requesting for FCF rediscovery failed "
18145 "status x%x add_status x%x\n",
18146 shdr_status, shdr_add_status);
18147 if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
18148 spin_lock_irq(&phba->hbalock);
18149 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
18150 spin_unlock_irq(&phba->hbalock);
18152 * CVL event triggered FCF rediscover request failed,
18153 * last resort to re-try current registered FCF entry.
18155 lpfc_retry_pport_discovery(phba);
18157 spin_lock_irq(&phba->hbalock);
18158 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
18159 spin_unlock_irq(&phba->hbalock);
18161 * DEAD FCF event triggered FCF rediscover request
18162 * failed, last resort to fail over as a link down
18163 * to FCF registration.
18165 lpfc_sli4_fcf_dead_failthrough(phba);
18168 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
18169 "2775 Start FCF rediscover quiescent timer\n");
18171 * Start FCF rediscovery wait timer for pending FCF
18172 * before rescan FCF record table.
18174 lpfc_fcf_redisc_wait_start_timer(phba);
18177 mempool_free(mbox, phba->mbox_mem_pool);
18181 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
18182 * @phba: pointer to lpfc hba data structure.
18184 * This routine is invoked to request for rediscovery of the entire FCF table
18188 lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
18190 LPFC_MBOXQ_t *mbox;
18191 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
18194 /* Cancel retry delay timers to all vports before FCF rediscover */
18195 lpfc_cancel_all_vport_retry_delay_timer(phba);
18197 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18199 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18200 "2745 Failed to allocate mbox for "
18201 "requesting FCF rediscover.\n");
18205 length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
18206 sizeof(struct lpfc_sli4_cfg_mhdr));
18207 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
18208 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
18209 length, LPFC_SLI4_MBX_EMBED);
18211 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
18212 /* Set count to 0 for invalidating the entire FCF database */
18213 bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
18215 /* Issue the mailbox command asynchronously */
18216 mbox->vport = phba->pport;
18217 mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
18218 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
18220 if (rc == MBX_NOT_FINISHED) {
18221 mempool_free(mbox, phba->mbox_mem_pool);
18228 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
18229 * @phba: pointer to lpfc hba data structure.
18231 * This function is the failover routine as a last resort to the FCF DEAD
18232 * event when driver failed to perform fast FCF failover.
18235 lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
18237 uint32_t link_state;
18240 * Last resort as FCF DEAD event failover will treat this as
18241 * a link down, but save the link state because we don't want
18242 * it to be changed to Link Down unless it is already down.
18244 link_state = phba->link_state;
18245 lpfc_linkdown(phba);
18246 phba->link_state = link_state;
18248 /* Unregister FCF if no devices connected to it */
18249 lpfc_unregister_unused_fcf(phba);
18253 * lpfc_sli_get_config_region23 - Get sli3 port region 23 data.
18254 * @phba: pointer to lpfc hba data structure.
18255 * @rgn23_data: pointer to configure region 23 data.
18257 * This function gets SLI3 port configure region 23 data through memory dump
18258 * mailbox command. When it successfully retrieves data, the size of the data
18259 * will be returned, otherwise, 0 will be returned.
18262 lpfc_sli_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
18264 LPFC_MBOXQ_t *pmb = NULL;
18266 uint32_t offset = 0;
18272 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18274 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18275 "2600 failed to allocate mailbox memory\n");
18281 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
18282 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
18284 if (rc != MBX_SUCCESS) {
18285 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
18286 "2601 failed to read config "
18287 "region 23, rc 0x%x Status 0x%x\n",
18288 rc, mb->mbxStatus);
18289 mb->un.varDmp.word_cnt = 0;
18292 * dump mem may return a zero when finished or we got a
18293 * mailbox error, either way we are done.
18295 if (mb->un.varDmp.word_cnt == 0)
18297 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
18298 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
18300 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
18301 rgn23_data + offset,
18302 mb->un.varDmp.word_cnt);
18303 offset += mb->un.varDmp.word_cnt;
18304 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
18306 mempool_free(pmb, phba->mbox_mem_pool);
18311 * lpfc_sli4_get_config_region23 - Get sli4 port region 23 data.
18312 * @phba: pointer to lpfc hba data structure.
18313 * @rgn23_data: pointer to configure region 23 data.
18315 * This function gets SLI4 port configure region 23 data through memory dump
18316 * mailbox command. When it successfully retrieves data, the size of the data
18317 * will be returned, otherwise, 0 will be returned.
18320 lpfc_sli4_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
18322 LPFC_MBOXQ_t *mboxq = NULL;
18323 struct lpfc_dmabuf *mp = NULL;
18324 struct lpfc_mqe *mqe;
18325 uint32_t data_length = 0;
18331 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18333 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18334 "3105 failed to allocate mailbox memory\n");
18338 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq))
18340 mqe = &mboxq->u.mqe;
18341 mp = (struct lpfc_dmabuf *) mboxq->context1;
18342 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
18345 data_length = mqe->un.mb_words[5];
18346 if (data_length == 0)
18348 if (data_length > DMP_RGN23_SIZE) {
18352 lpfc_sli_pcimem_bcopy((char *)mp->virt, rgn23_data, data_length);
18354 mempool_free(mboxq, phba->mbox_mem_pool);
18356 lpfc_mbuf_free(phba, mp->virt, mp->phys);
18359 return data_length;
18363 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
18364 * @phba: pointer to lpfc hba data structure.
18366 * This function read region 23 and parse TLV for port status to
18367 * decide if the user disaled the port. If the TLV indicates the
18368 * port is disabled, the hba_flag is set accordingly.
18371 lpfc_sli_read_link_ste(struct lpfc_hba *phba)
18373 uint8_t *rgn23_data = NULL;
18374 uint32_t if_type, data_size, sub_tlv_len, tlv_offset;
18375 uint32_t offset = 0;
18377 /* Get adapter Region 23 data */
18378 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
18382 if (phba->sli_rev < LPFC_SLI_REV4)
18383 data_size = lpfc_sli_get_config_region23(phba, rgn23_data);
18385 if_type = bf_get(lpfc_sli_intf_if_type,
18386 &phba->sli4_hba.sli_intf);
18387 if (if_type == LPFC_SLI_INTF_IF_TYPE_0)
18389 data_size = lpfc_sli4_get_config_region23(phba, rgn23_data);
18395 /* Check the region signature first */
18396 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
18397 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18398 "2619 Config region 23 has bad signature\n");
18403 /* Check the data structure version */
18404 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
18405 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18406 "2620 Config region 23 has bad version\n");
18411 /* Parse TLV entries in the region */
18412 while (offset < data_size) {
18413 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
18416 * If the TLV is not driver specific TLV or driver id is
18417 * not linux driver id, skip the record.
18419 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
18420 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
18421 (rgn23_data[offset + 3] != 0)) {
18422 offset += rgn23_data[offset + 1] * 4 + 4;
18426 /* Driver found a driver specific TLV in the config region */
18427 sub_tlv_len = rgn23_data[offset + 1] * 4;
18432 * Search for configured port state sub-TLV.
18434 while ((offset < data_size) &&
18435 (tlv_offset < sub_tlv_len)) {
18436 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
18441 if (rgn23_data[offset] != PORT_STE_TYPE) {
18442 offset += rgn23_data[offset + 1] * 4 + 4;
18443 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
18447 /* This HBA contains PORT_STE configured */
18448 if (!rgn23_data[offset + 2])
18449 phba->hba_flag |= LINK_DISABLED;
18461 * lpfc_wr_object - write an object to the firmware
18462 * @phba: HBA structure that indicates port to create a queue on.
18463 * @dmabuf_list: list of dmabufs to write to the port.
18464 * @size: the total byte value of the objects to write to the port.
18465 * @offset: the current offset to be used to start the transfer.
18467 * This routine will create a wr_object mailbox command to send to the port.
18468 * the mailbox command will be constructed using the dma buffers described in
18469 * @dmabuf_list to create a list of BDEs. This routine will fill in as many
18470 * BDEs that the imbedded mailbox can support. The @offset variable will be
18471 * used to indicate the starting offset of the transfer and will also return
18472 * the offset after the write object mailbox has completed. @size is used to
18473 * determine the end of the object and whether the eof bit should be set.
18475 * Return 0 is successful and offset will contain the the new offset to use
18476 * for the next write.
18477 * Return negative value for error cases.
18480 lpfc_wr_object(struct lpfc_hba *phba, struct list_head *dmabuf_list,
18481 uint32_t size, uint32_t *offset)
18483 struct lpfc_mbx_wr_object *wr_object;
18484 LPFC_MBOXQ_t *mbox;
18486 uint32_t shdr_status, shdr_add_status;
18488 union lpfc_sli4_cfg_shdr *shdr;
18489 struct lpfc_dmabuf *dmabuf;
18490 uint32_t written = 0;
18492 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18496 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
18497 LPFC_MBOX_OPCODE_WRITE_OBJECT,
18498 sizeof(struct lpfc_mbx_wr_object) -
18499 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
18501 wr_object = (struct lpfc_mbx_wr_object *)&mbox->u.mqe.un.wr_object;
18502 wr_object->u.request.write_offset = *offset;
18503 sprintf((uint8_t *)wr_object->u.request.object_name, "/");
18504 wr_object->u.request.object_name[0] =
18505 cpu_to_le32(wr_object->u.request.object_name[0]);
18506 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 0);
18507 list_for_each_entry(dmabuf, dmabuf_list, list) {
18508 if (i >= LPFC_MBX_WR_CONFIG_MAX_BDE || written >= size)
18510 wr_object->u.request.bde[i].addrLow = putPaddrLow(dmabuf->phys);
18511 wr_object->u.request.bde[i].addrHigh =
18512 putPaddrHigh(dmabuf->phys);
18513 if (written + SLI4_PAGE_SIZE >= size) {
18514 wr_object->u.request.bde[i].tus.f.bdeSize =
18516 written += (size - written);
18517 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 1);
18519 wr_object->u.request.bde[i].tus.f.bdeSize =
18521 written += SLI4_PAGE_SIZE;
18525 wr_object->u.request.bde_count = i;
18526 bf_set(lpfc_wr_object_write_length, &wr_object->u.request, written);
18527 if (!phba->sli4_hba.intr_enable)
18528 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
18530 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
18531 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
18533 /* The IOCTL status is embedded in the mailbox subheader. */
18534 shdr = (union lpfc_sli4_cfg_shdr *) &wr_object->header.cfg_shdr;
18535 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
18536 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
18537 if (rc != MBX_TIMEOUT)
18538 mempool_free(mbox, phba->mbox_mem_pool);
18539 if (shdr_status || shdr_add_status || rc) {
18540 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18541 "3025 Write Object mailbox failed with "
18542 "status x%x add_status x%x, mbx status x%x\n",
18543 shdr_status, shdr_add_status, rc);
18546 *offset += wr_object->u.response.actual_write_length;
18551 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
18552 * @vport: pointer to vport data structure.
18554 * This function iterate through the mailboxq and clean up all REG_LOGIN
18555 * and REG_VPI mailbox commands associated with the vport. This function
18556 * is called when driver want to restart discovery of the vport due to
18557 * a Clear Virtual Link event.
18560 lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
18562 struct lpfc_hba *phba = vport->phba;
18563 LPFC_MBOXQ_t *mb, *nextmb;
18564 struct lpfc_dmabuf *mp;
18565 struct lpfc_nodelist *ndlp;
18566 struct lpfc_nodelist *act_mbx_ndlp = NULL;
18567 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
18568 LIST_HEAD(mbox_cmd_list);
18569 uint8_t restart_loop;
18571 /* Clean up internally queued mailbox commands with the vport */
18572 spin_lock_irq(&phba->hbalock);
18573 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
18574 if (mb->vport != vport)
18577 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
18578 (mb->u.mb.mbxCommand != MBX_REG_VPI))
18581 list_del(&mb->list);
18582 list_add_tail(&mb->list, &mbox_cmd_list);
18584 /* Clean up active mailbox command with the vport */
18585 mb = phba->sli.mbox_active;
18586 if (mb && (mb->vport == vport)) {
18587 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
18588 (mb->u.mb.mbxCommand == MBX_REG_VPI))
18589 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
18590 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
18591 act_mbx_ndlp = (struct lpfc_nodelist *)mb->context2;
18592 /* Put reference count for delayed processing */
18593 act_mbx_ndlp = lpfc_nlp_get(act_mbx_ndlp);
18594 /* Unregister the RPI when mailbox complete */
18595 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
18598 /* Cleanup any mailbox completions which are not yet processed */
18601 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
18603 * If this mailox is already processed or it is
18604 * for another vport ignore it.
18606 if ((mb->vport != vport) ||
18607 (mb->mbox_flag & LPFC_MBX_IMED_UNREG))
18610 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
18611 (mb->u.mb.mbxCommand != MBX_REG_VPI))
18614 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
18615 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
18616 ndlp = (struct lpfc_nodelist *)mb->context2;
18617 /* Unregister the RPI when mailbox complete */
18618 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
18620 spin_unlock_irq(&phba->hbalock);
18621 spin_lock(shost->host_lock);
18622 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
18623 spin_unlock(shost->host_lock);
18624 spin_lock_irq(&phba->hbalock);
18628 } while (restart_loop);
18630 spin_unlock_irq(&phba->hbalock);
18632 /* Release the cleaned-up mailbox commands */
18633 while (!list_empty(&mbox_cmd_list)) {
18634 list_remove_head(&mbox_cmd_list, mb, LPFC_MBOXQ_t, list);
18635 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
18636 mp = (struct lpfc_dmabuf *) (mb->context1);
18638 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
18641 ndlp = (struct lpfc_nodelist *) mb->context2;
18642 mb->context2 = NULL;
18644 spin_lock(shost->host_lock);
18645 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
18646 spin_unlock(shost->host_lock);
18647 lpfc_nlp_put(ndlp);
18650 mempool_free(mb, phba->mbox_mem_pool);
18653 /* Release the ndlp with the cleaned-up active mailbox command */
18654 if (act_mbx_ndlp) {
18655 spin_lock(shost->host_lock);
18656 act_mbx_ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
18657 spin_unlock(shost->host_lock);
18658 lpfc_nlp_put(act_mbx_ndlp);
18663 * lpfc_drain_txq - Drain the txq
18664 * @phba: Pointer to HBA context object.
18666 * This function attempt to submit IOCBs on the txq
18667 * to the adapter. For SLI4 adapters, the txq contains
18668 * ELS IOCBs that have been deferred because the there
18669 * are no SGLs. This congestion can occur with large
18670 * vport counts during node discovery.
18674 lpfc_drain_txq(struct lpfc_hba *phba)
18676 LIST_HEAD(completions);
18677 struct lpfc_sli_ring *pring;
18678 struct lpfc_iocbq *piocbq = NULL;
18679 unsigned long iflags = 0;
18680 char *fail_msg = NULL;
18681 struct lpfc_sglq *sglq;
18682 union lpfc_wqe128 wqe128;
18683 union lpfc_wqe *wqe = (union lpfc_wqe *) &wqe128;
18684 uint32_t txq_cnt = 0;
18686 pring = lpfc_phba_elsring(phba);
18688 spin_lock_irqsave(&pring->ring_lock, iflags);
18689 list_for_each_entry(piocbq, &pring->txq, list) {
18693 if (txq_cnt > pring->txq_max)
18694 pring->txq_max = txq_cnt;
18696 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18698 while (!list_empty(&pring->txq)) {
18699 spin_lock_irqsave(&pring->ring_lock, iflags);
18701 piocbq = lpfc_sli_ringtx_get(phba, pring);
18703 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18704 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18705 "2823 txq empty and txq_cnt is %d\n ",
18709 sglq = __lpfc_sli_get_els_sglq(phba, piocbq);
18711 __lpfc_sli_ringtx_put(phba, pring, piocbq);
18712 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18717 /* The xri and iocb resources secured,
18718 * attempt to issue request
18720 piocbq->sli4_lxritag = sglq->sli4_lxritag;
18721 piocbq->sli4_xritag = sglq->sli4_xritag;
18722 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocbq, sglq))
18723 fail_msg = "to convert bpl to sgl";
18724 else if (lpfc_sli4_iocb2wqe(phba, piocbq, wqe))
18725 fail_msg = "to convert iocb to wqe";
18726 else if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, wqe))
18727 fail_msg = " - Wq is full";
18729 lpfc_sli_ringtxcmpl_put(phba, pring, piocbq);
18732 /* Failed means we can't issue and need to cancel */
18733 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18734 "2822 IOCB failed %s iotag 0x%x "
18737 piocbq->iotag, piocbq->sli4_xritag);
18738 list_add_tail(&piocbq->list, &completions);
18740 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18743 /* Cancel all the IOCBs that cannot be issued */
18744 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
18745 IOERR_SLI_ABORTED);
18751 * lpfc_wqe_bpl2sgl - Convert the bpl/bde to a sgl.
18752 * @phba: Pointer to HBA context object.
18753 * @pwqe: Pointer to command WQE.
18754 * @sglq: Pointer to the scatter gather queue object.
18756 * This routine converts the bpl or bde that is in the WQE
18757 * to a sgl list for the sli4 hardware. The physical address
18758 * of the bpl/bde is converted back to a virtual address.
18759 * If the WQE contains a BPL then the list of BDE's is
18760 * converted to sli4_sge's. If the WQE contains a single
18761 * BDE then it is converted to a single sli_sge.
18762 * The WQE is still in cpu endianness so the contents of
18763 * the bpl can be used without byte swapping.
18765 * Returns valid XRI = Success, NO_XRI = Failure.
18768 lpfc_wqe_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeq,
18769 struct lpfc_sglq *sglq)
18771 uint16_t xritag = NO_XRI;
18772 struct ulp_bde64 *bpl = NULL;
18773 struct ulp_bde64 bde;
18774 struct sli4_sge *sgl = NULL;
18775 struct lpfc_dmabuf *dmabuf;
18776 union lpfc_wqe *wqe;
18779 uint32_t offset = 0; /* accumulated offset in the sg request list */
18780 int inbound = 0; /* number of sg reply entries inbound from firmware */
18783 if (!pwqeq || !sglq)
18786 sgl = (struct sli4_sge *)sglq->sgl;
18788 pwqeq->iocb.ulpIoTag = pwqeq->iotag;
18790 cmd = bf_get(wqe_cmnd, &wqe->generic.wqe_com);
18791 if (cmd == CMD_XMIT_BLS_RSP64_WQE)
18792 return sglq->sli4_xritag;
18793 numBdes = pwqeq->rsvd2;
18795 /* The addrHigh and addrLow fields within the WQE
18796 * have not been byteswapped yet so there is no
18797 * need to swap them back.
18799 if (pwqeq->context3)
18800 dmabuf = (struct lpfc_dmabuf *)pwqeq->context3;
18804 bpl = (struct ulp_bde64 *)dmabuf->virt;
18808 for (i = 0; i < numBdes; i++) {
18809 /* Should already be byte swapped. */
18810 sgl->addr_hi = bpl->addrHigh;
18811 sgl->addr_lo = bpl->addrLow;
18813 sgl->word2 = le32_to_cpu(sgl->word2);
18814 if ((i+1) == numBdes)
18815 bf_set(lpfc_sli4_sge_last, sgl, 1);
18817 bf_set(lpfc_sli4_sge_last, sgl, 0);
18818 /* swap the size field back to the cpu so we
18819 * can assign it to the sgl.
18821 bde.tus.w = le32_to_cpu(bpl->tus.w);
18822 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
18823 /* The offsets in the sgl need to be accumulated
18824 * separately for the request and reply lists.
18825 * The request is always first, the reply follows.
18828 case CMD_GEN_REQUEST64_WQE:
18829 /* add up the reply sg entries */
18830 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
18832 /* first inbound? reset the offset */
18835 bf_set(lpfc_sli4_sge_offset, sgl, offset);
18836 bf_set(lpfc_sli4_sge_type, sgl,
18837 LPFC_SGE_TYPE_DATA);
18838 offset += bde.tus.f.bdeSize;
18840 case CMD_FCP_TRSP64_WQE:
18841 bf_set(lpfc_sli4_sge_offset, sgl, 0);
18842 bf_set(lpfc_sli4_sge_type, sgl,
18843 LPFC_SGE_TYPE_DATA);
18845 case CMD_FCP_TSEND64_WQE:
18846 case CMD_FCP_TRECEIVE64_WQE:
18847 bf_set(lpfc_sli4_sge_type, sgl,
18848 bpl->tus.f.bdeFlags);
18852 offset += bde.tus.f.bdeSize;
18853 bf_set(lpfc_sli4_sge_offset, sgl, offset);
18856 sgl->word2 = cpu_to_le32(sgl->word2);
18860 } else if (wqe->gen_req.bde.tus.f.bdeFlags == BUFF_TYPE_BDE_64) {
18861 /* The addrHigh and addrLow fields of the BDE have not
18862 * been byteswapped yet so they need to be swapped
18863 * before putting them in the sgl.
18865 sgl->addr_hi = cpu_to_le32(wqe->gen_req.bde.addrHigh);
18866 sgl->addr_lo = cpu_to_le32(wqe->gen_req.bde.addrLow);
18867 sgl->word2 = le32_to_cpu(sgl->word2);
18868 bf_set(lpfc_sli4_sge_last, sgl, 1);
18869 sgl->word2 = cpu_to_le32(sgl->word2);
18870 sgl->sge_len = cpu_to_le32(wqe->gen_req.bde.tus.f.bdeSize);
18872 return sglq->sli4_xritag;
18876 * lpfc_sli4_issue_wqe - Issue an SLI4 Work Queue Entry (WQE)
18877 * @phba: Pointer to HBA context object.
18878 * @ring_number: Base sli ring number
18879 * @pwqe: Pointer to command WQE.
18882 lpfc_sli4_issue_wqe(struct lpfc_hba *phba, uint32_t ring_number,
18883 struct lpfc_iocbq *pwqe)
18885 union lpfc_wqe *wqe = &pwqe->wqe;
18886 struct lpfc_nvmet_rcv_ctx *ctxp;
18887 struct lpfc_queue *wq;
18888 struct lpfc_sglq *sglq;
18889 struct lpfc_sli_ring *pring;
18890 unsigned long iflags;
18892 /* NVME_LS and NVME_LS ABTS requests. */
18893 if (pwqe->iocb_flag & LPFC_IO_NVME_LS) {
18894 pring = phba->sli4_hba.nvmels_wq->pring;
18895 spin_lock_irqsave(&pring->ring_lock, iflags);
18896 sglq = __lpfc_sli_get_els_sglq(phba, pwqe);
18898 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18901 pwqe->sli4_lxritag = sglq->sli4_lxritag;
18902 pwqe->sli4_xritag = sglq->sli4_xritag;
18903 if (lpfc_wqe_bpl2sgl(phba, pwqe, sglq) == NO_XRI) {
18904 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18907 bf_set(wqe_xri_tag, &pwqe->wqe.xmit_bls_rsp.wqe_com,
18908 pwqe->sli4_xritag);
18909 if (lpfc_sli4_wq_put(phba->sli4_hba.nvmels_wq, wqe)) {
18910 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18913 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
18914 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18918 /* NVME_FCREQ and NVME_ABTS requests */
18919 if (pwqe->iocb_flag & LPFC_IO_NVME) {
18920 /* Get the IO distribution (hba_wqidx) for WQ assignment. */
18921 pring = phba->sli4_hba.nvme_wq[pwqe->hba_wqidx]->pring;
18923 spin_lock_irqsave(&pring->ring_lock, iflags);
18924 wq = phba->sli4_hba.nvme_wq[pwqe->hba_wqidx];
18925 bf_set(wqe_cqid, &wqe->generic.wqe_com,
18926 phba->sli4_hba.nvme_cq[pwqe->hba_wqidx]->queue_id);
18927 if (lpfc_sli4_wq_put(wq, wqe)) {
18928 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18931 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
18932 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18936 /* NVMET requests */
18937 if (pwqe->iocb_flag & LPFC_IO_NVMET) {
18938 /* Get the IO distribution (hba_wqidx) for WQ assignment. */
18939 pring = phba->sli4_hba.nvme_wq[pwqe->hba_wqidx]->pring;
18941 spin_lock_irqsave(&pring->ring_lock, iflags);
18942 ctxp = pwqe->context2;
18943 sglq = ctxp->ctxbuf->sglq;
18944 if (pwqe->sli4_xritag == NO_XRI) {
18945 pwqe->sli4_lxritag = sglq->sli4_lxritag;
18946 pwqe->sli4_xritag = sglq->sli4_xritag;
18948 bf_set(wqe_xri_tag, &pwqe->wqe.xmit_bls_rsp.wqe_com,
18949 pwqe->sli4_xritag);
18950 wq = phba->sli4_hba.nvme_wq[pwqe->hba_wqidx];
18951 bf_set(wqe_cqid, &wqe->generic.wqe_com,
18952 phba->sli4_hba.nvme_cq[pwqe->hba_wqidx]->queue_id);
18953 if (lpfc_sli4_wq_put(wq, wqe)) {
18954 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18957 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
18958 spin_unlock_irqrestore(&pring->ring_lock, iflags);