1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2013 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
22 #include <linux/blkdev.h>
23 #include <linux/pci.h>
24 #include <linux/interrupt.h>
25 #include <linux/delay.h>
26 #include <linux/slab.h>
28 #include <scsi/scsi.h>
29 #include <scsi/scsi_cmnd.h>
30 #include <scsi/scsi_device.h>
31 #include <scsi/scsi_host.h>
32 #include <scsi/scsi_transport_fc.h>
33 #include <scsi/fc/fc_fs.h>
34 #include <linux/aer.h>
39 #include "lpfc_sli4.h"
41 #include "lpfc_disc.h"
42 #include "lpfc_scsi.h"
44 #include "lpfc_crtn.h"
45 #include "lpfc_logmsg.h"
46 #include "lpfc_compat.h"
47 #include "lpfc_debugfs.h"
48 #include "lpfc_vport.h"
50 /* There are only four IOCB completion types. */
51 typedef enum _lpfc_iocb_type {
59 /* Provide function prototypes local to this module. */
60 static int lpfc_sli_issue_mbox_s4(struct lpfc_hba *, LPFC_MBOXQ_t *,
62 static int lpfc_sli4_read_rev(struct lpfc_hba *, LPFC_MBOXQ_t *,
63 uint8_t *, uint32_t *);
64 static struct lpfc_iocbq *lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *,
66 static void lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *,
68 static int lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *, struct lpfc_queue *,
70 static int lpfc_sli4_post_els_sgl_list(struct lpfc_hba *, struct list_head *,
72 static void lpfc_sli4_hba_handle_eqe(struct lpfc_hba *, struct lpfc_eqe *,
74 static bool lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba);
75 static bool lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba);
78 lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq)
84 * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
85 * @q: The Work Queue to operate on.
86 * @wqe: The work Queue Entry to put on the Work queue.
88 * This routine will copy the contents of @wqe to the next available entry on
89 * the @q. This function will then ring the Work Queue Doorbell to signal the
90 * HBA to start processing the Work Queue Entry. This function returns 0 if
91 * successful. If no entries are available on @q then this function will return
93 * The caller is expected to hold the hbalock when calling this routine.
96 lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe)
98 union lpfc_wqe *temp_wqe;
99 struct lpfc_register doorbell;
103 /* sanity check on queue memory */
106 temp_wqe = q->qe[q->host_index].wqe;
108 /* If the host has not yet processed the next entry then we are done */
109 idx = ((q->host_index + 1) % q->entry_count);
110 if (idx == q->hba_index) {
115 /* set consumption flag every once in a while */
116 if (!((q->host_index + 1) % q->entry_repost))
117 bf_set(wqe_wqec, &wqe->generic.wqe_com, 1);
118 if (q->phba->sli3_options & LPFC_SLI4_PHWQ_ENABLED)
119 bf_set(wqe_wqid, &wqe->generic.wqe_com, q->queue_id);
120 lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size);
122 /* Update the host index before invoking device */
123 host_index = q->host_index;
129 if (q->db_format == LPFC_DB_LIST_FORMAT) {
130 bf_set(lpfc_wq_db_list_fm_num_posted, &doorbell, 1);
131 bf_set(lpfc_wq_db_list_fm_index, &doorbell, host_index);
132 bf_set(lpfc_wq_db_list_fm_id, &doorbell, q->queue_id);
133 } else if (q->db_format == LPFC_DB_RING_FORMAT) {
134 bf_set(lpfc_wq_db_ring_fm_num_posted, &doorbell, 1);
135 bf_set(lpfc_wq_db_ring_fm_id, &doorbell, q->queue_id);
139 writel(doorbell.word0, q->db_regaddr);
145 * lpfc_sli4_wq_release - Updates internal hba index for WQ
146 * @q: The Work Queue to operate on.
147 * @index: The index to advance the hba index to.
149 * This routine will update the HBA index of a queue to reflect consumption of
150 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
151 * an entry the host calls this function to update the queue's internal
152 * pointers. This routine returns the number of entries that were consumed by
156 lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index)
158 uint32_t released = 0;
160 /* sanity check on queue memory */
164 if (q->hba_index == index)
167 q->hba_index = ((q->hba_index + 1) % q->entry_count);
169 } while (q->hba_index != index);
174 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
175 * @q: The Mailbox Queue to operate on.
176 * @wqe: The Mailbox Queue Entry to put on the Work queue.
178 * This routine will copy the contents of @mqe to the next available entry on
179 * the @q. This function will then ring the Work Queue Doorbell to signal the
180 * HBA to start processing the Work Queue Entry. This function returns 0 if
181 * successful. If no entries are available on @q then this function will return
183 * The caller is expected to hold the hbalock when calling this routine.
186 lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
188 struct lpfc_mqe *temp_mqe;
189 struct lpfc_register doorbell;
192 /* sanity check on queue memory */
195 temp_mqe = q->qe[q->host_index].mqe;
197 /* If the host has not yet processed the next entry then we are done */
198 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
200 lpfc_sli_pcimem_bcopy(mqe, temp_mqe, q->entry_size);
201 /* Save off the mailbox pointer for completion */
202 q->phba->mbox = (MAILBOX_t *)temp_mqe;
204 /* Update the host index before invoking device */
205 host_index = q->host_index;
206 q->host_index = ((q->host_index + 1) % q->entry_count);
210 bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1);
211 bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id);
212 writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr);
217 * lpfc_sli4_mq_release - Updates internal hba index for MQ
218 * @q: The Mailbox Queue to operate on.
220 * This routine will update the HBA index of a queue to reflect consumption of
221 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
222 * an entry the host calls this function to update the queue's internal
223 * pointers. This routine returns the number of entries that were consumed by
227 lpfc_sli4_mq_release(struct lpfc_queue *q)
229 /* sanity check on queue memory */
233 /* Clear the mailbox pointer for completion */
234 q->phba->mbox = NULL;
235 q->hba_index = ((q->hba_index + 1) % q->entry_count);
240 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
241 * @q: The Event Queue to get the first valid EQE from
243 * This routine will get the first valid Event Queue Entry from @q, update
244 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
245 * the Queue (no more work to do), or the Queue is full of EQEs that have been
246 * processed, but not popped back to the HBA then this routine will return NULL.
248 static struct lpfc_eqe *
249 lpfc_sli4_eq_get(struct lpfc_queue *q)
251 struct lpfc_eqe *eqe;
254 /* sanity check on queue memory */
257 eqe = q->qe[q->hba_index].eqe;
259 /* If the next EQE is not valid then we are done */
260 if (!bf_get_le32(lpfc_eqe_valid, eqe))
262 /* If the host has not yet processed the next entry then we are done */
263 idx = ((q->hba_index + 1) % q->entry_count);
264 if (idx == q->host_index)
272 * lpfc_sli4_eq_clr_intr - Turn off interrupts from this EQ
273 * @q: The Event Queue to disable interrupts
277 lpfc_sli4_eq_clr_intr(struct lpfc_queue *q)
279 struct lpfc_register doorbell;
282 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
283 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
284 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
285 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
286 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
287 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
291 * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
292 * @q: The Event Queue that the host has completed processing for.
293 * @arm: Indicates whether the host wants to arms this CQ.
295 * This routine will mark all Event Queue Entries on @q, from the last
296 * known completed entry to the last entry that was processed, as completed
297 * by clearing the valid bit for each completion queue entry. Then it will
298 * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
299 * The internal host index in the @q will be updated by this routine to indicate
300 * that the host has finished processing the entries. The @arm parameter
301 * indicates that the queue should be rearmed when ringing the doorbell.
303 * This function will return the number of EQEs that were popped.
306 lpfc_sli4_eq_release(struct lpfc_queue *q, bool arm)
308 uint32_t released = 0;
309 struct lpfc_eqe *temp_eqe;
310 struct lpfc_register doorbell;
312 /* sanity check on queue memory */
316 /* while there are valid entries */
317 while (q->hba_index != q->host_index) {
318 temp_eqe = q->qe[q->host_index].eqe;
319 bf_set_le32(lpfc_eqe_valid, temp_eqe, 0);
321 q->host_index = ((q->host_index + 1) % q->entry_count);
323 if (unlikely(released == 0 && !arm))
326 /* ring doorbell for number popped */
329 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
330 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
332 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
333 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
334 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
335 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
336 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
337 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
338 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
339 if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
340 readl(q->phba->sli4_hba.EQCQDBregaddr);
345 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
346 * @q: The Completion Queue to get the first valid CQE from
348 * This routine will get the first valid Completion Queue Entry from @q, update
349 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
350 * the Queue (no more work to do), or the Queue is full of CQEs that have been
351 * processed, but not popped back to the HBA then this routine will return NULL.
353 static struct lpfc_cqe *
354 lpfc_sli4_cq_get(struct lpfc_queue *q)
356 struct lpfc_cqe *cqe;
359 /* sanity check on queue memory */
363 /* If the next CQE is not valid then we are done */
364 if (!bf_get_le32(lpfc_cqe_valid, q->qe[q->hba_index].cqe))
366 /* If the host has not yet processed the next entry then we are done */
367 idx = ((q->hba_index + 1) % q->entry_count);
368 if (idx == q->host_index)
371 cqe = q->qe[q->hba_index].cqe;
377 * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ
378 * @q: The Completion Queue that the host has completed processing for.
379 * @arm: Indicates whether the host wants to arms this CQ.
381 * This routine will mark all Completion queue entries on @q, from the last
382 * known completed entry to the last entry that was processed, as completed
383 * by clearing the valid bit for each completion queue entry. Then it will
384 * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
385 * The internal host index in the @q will be updated by this routine to indicate
386 * that the host has finished processing the entries. The @arm parameter
387 * indicates that the queue should be rearmed when ringing the doorbell.
389 * This function will return the number of CQEs that were released.
392 lpfc_sli4_cq_release(struct lpfc_queue *q, bool arm)
394 uint32_t released = 0;
395 struct lpfc_cqe *temp_qe;
396 struct lpfc_register doorbell;
398 /* sanity check on queue memory */
401 /* while there are valid entries */
402 while (q->hba_index != q->host_index) {
403 temp_qe = q->qe[q->host_index].cqe;
404 bf_set_le32(lpfc_cqe_valid, temp_qe, 0);
406 q->host_index = ((q->host_index + 1) % q->entry_count);
408 if (unlikely(released == 0 && !arm))
411 /* ring doorbell for number popped */
414 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
415 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
416 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION);
417 bf_set(lpfc_eqcq_doorbell_cqid_hi, &doorbell,
418 (q->queue_id >> LPFC_CQID_HI_FIELD_SHIFT));
419 bf_set(lpfc_eqcq_doorbell_cqid_lo, &doorbell, q->queue_id);
420 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
425 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
426 * @q: The Header Receive Queue to operate on.
427 * @wqe: The Receive Queue Entry to put on the Receive queue.
429 * This routine will copy the contents of @wqe to the next available entry on
430 * the @q. This function will then ring the Receive Queue Doorbell to signal the
431 * HBA to start processing the Receive Queue Entry. This function returns the
432 * index that the rqe was copied to if successful. If no entries are available
433 * on @q then this function will return -ENOMEM.
434 * The caller is expected to hold the hbalock when calling this routine.
437 lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
438 struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe)
440 struct lpfc_rqe *temp_hrqe;
441 struct lpfc_rqe *temp_drqe;
442 struct lpfc_register doorbell;
445 /* sanity check on queue memory */
446 if (unlikely(!hq) || unlikely(!dq))
448 put_index = hq->host_index;
449 temp_hrqe = hq->qe[hq->host_index].rqe;
450 temp_drqe = dq->qe[dq->host_index].rqe;
452 if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ)
454 if (hq->host_index != dq->host_index)
456 /* If the host has not yet processed the next entry then we are done */
457 if (((hq->host_index + 1) % hq->entry_count) == hq->hba_index)
459 lpfc_sli_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size);
460 lpfc_sli_pcimem_bcopy(drqe, temp_drqe, dq->entry_size);
462 /* Update the host index to point to the next slot */
463 hq->host_index = ((hq->host_index + 1) % hq->entry_count);
464 dq->host_index = ((dq->host_index + 1) % dq->entry_count);
466 /* Ring The Header Receive Queue Doorbell */
467 if (!(hq->host_index % hq->entry_repost)) {
469 if (hq->db_format == LPFC_DB_RING_FORMAT) {
470 bf_set(lpfc_rq_db_ring_fm_num_posted, &doorbell,
472 bf_set(lpfc_rq_db_ring_fm_id, &doorbell, hq->queue_id);
473 } else if (hq->db_format == LPFC_DB_LIST_FORMAT) {
474 bf_set(lpfc_rq_db_list_fm_num_posted, &doorbell,
476 bf_set(lpfc_rq_db_list_fm_index, &doorbell,
478 bf_set(lpfc_rq_db_list_fm_id, &doorbell, hq->queue_id);
482 writel(doorbell.word0, hq->db_regaddr);
488 * lpfc_sli4_rq_release - Updates internal hba index for RQ
489 * @q: The Header Receive Queue to operate on.
491 * This routine will update the HBA index of a queue to reflect consumption of
492 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
493 * consumed an entry the host calls this function to update the queue's
494 * internal pointers. This routine returns the number of entries that were
495 * consumed by the HBA.
498 lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq)
500 /* sanity check on queue memory */
501 if (unlikely(!hq) || unlikely(!dq))
504 if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ))
506 hq->hba_index = ((hq->hba_index + 1) % hq->entry_count);
507 dq->hba_index = ((dq->hba_index + 1) % dq->entry_count);
512 * lpfc_cmd_iocb - Get next command iocb entry in the ring
513 * @phba: Pointer to HBA context object.
514 * @pring: Pointer to driver SLI ring object.
516 * This function returns pointer to next command iocb entry
517 * in the command ring. The caller must hold hbalock to prevent
518 * other threads consume the next command iocb.
519 * SLI-2/SLI-3 provide different sized iocbs.
521 static inline IOCB_t *
522 lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
524 return (IOCB_t *) (((char *) pring->sli.sli3.cmdringaddr) +
525 pring->sli.sli3.cmdidx * phba->iocb_cmd_size);
529 * lpfc_resp_iocb - Get next response iocb entry in the ring
530 * @phba: Pointer to HBA context object.
531 * @pring: Pointer to driver SLI ring object.
533 * This function returns pointer to next response iocb entry
534 * in the response ring. The caller must hold hbalock to make sure
535 * that no other thread consume the next response iocb.
536 * SLI-2/SLI-3 provide different sized iocbs.
538 static inline IOCB_t *
539 lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
541 return (IOCB_t *) (((char *) pring->sli.sli3.rspringaddr) +
542 pring->sli.sli3.rspidx * phba->iocb_rsp_size);
546 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
547 * @phba: Pointer to HBA context object.
549 * This function is called with hbalock held. This function
550 * allocates a new driver iocb object from the iocb pool. If the
551 * allocation is successful, it returns pointer to the newly
552 * allocated iocb object else it returns NULL.
555 __lpfc_sli_get_iocbq(struct lpfc_hba *phba)
557 struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
558 struct lpfc_iocbq * iocbq = NULL;
560 list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
563 if (phba->iocb_cnt > phba->iocb_max)
564 phba->iocb_max = phba->iocb_cnt;
569 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
570 * @phba: Pointer to HBA context object.
571 * @xritag: XRI value.
573 * This function clears the sglq pointer from the array of acive
574 * sglq's. The xritag that is passed in is used to index into the
575 * array. Before the xritag can be used it needs to be adjusted
576 * by subtracting the xribase.
578 * Returns sglq ponter = success, NULL = Failure.
580 static struct lpfc_sglq *
581 __lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
583 struct lpfc_sglq *sglq;
585 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
586 phba->sli4_hba.lpfc_sglq_active_list[xritag] = NULL;
591 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
592 * @phba: Pointer to HBA context object.
593 * @xritag: XRI value.
595 * This function returns the sglq pointer from the array of acive
596 * sglq's. The xritag that is passed in is used to index into the
597 * array. Before the xritag can be used it needs to be adjusted
598 * by subtracting the xribase.
600 * Returns sglq ponter = success, NULL = Failure.
603 __lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
605 struct lpfc_sglq *sglq;
607 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
612 * lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
613 * @phba: Pointer to HBA context object.
614 * @xritag: xri used in this exchange.
615 * @rrq: The RRQ to be cleared.
619 lpfc_clr_rrq_active(struct lpfc_hba *phba,
621 struct lpfc_node_rrq *rrq)
623 struct lpfc_nodelist *ndlp = NULL;
625 if ((rrq->vport) && NLP_CHK_NODE_ACT(rrq->ndlp))
626 ndlp = lpfc_findnode_did(rrq->vport, rrq->nlp_DID);
628 /* The target DID could have been swapped (cable swap)
629 * we should use the ndlp from the findnode if it is
632 if ((!ndlp) && rrq->ndlp)
638 if (test_and_clear_bit(xritag, ndlp->active_rrqs.xri_bitmap)) {
641 rrq->rrq_stop_time = 0;
644 mempool_free(rrq, phba->rrq_pool);
648 * lpfc_handle_rrq_active - Checks if RRQ has waithed RATOV.
649 * @phba: Pointer to HBA context object.
651 * This function is called with hbalock held. This function
652 * Checks if stop_time (ratov from setting rrq active) has
653 * been reached, if it has and the send_rrq flag is set then
654 * it will call lpfc_send_rrq. If the send_rrq flag is not set
655 * then it will just call the routine to clear the rrq and
656 * free the rrq resource.
657 * The timer is set to the next rrq that is going to expire before
658 * leaving the routine.
662 lpfc_handle_rrq_active(struct lpfc_hba *phba)
664 struct lpfc_node_rrq *rrq;
665 struct lpfc_node_rrq *nextrrq;
666 unsigned long next_time;
667 unsigned long iflags;
670 spin_lock_irqsave(&phba->hbalock, iflags);
671 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
672 next_time = jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
673 list_for_each_entry_safe(rrq, nextrrq,
674 &phba->active_rrq_list, list) {
675 if (time_after(jiffies, rrq->rrq_stop_time))
676 list_move(&rrq->list, &send_rrq);
677 else if (time_before(rrq->rrq_stop_time, next_time))
678 next_time = rrq->rrq_stop_time;
680 spin_unlock_irqrestore(&phba->hbalock, iflags);
681 if (!list_empty(&phba->active_rrq_list))
682 mod_timer(&phba->rrq_tmr, next_time);
683 list_for_each_entry_safe(rrq, nextrrq, &send_rrq, list) {
684 list_del(&rrq->list);
686 /* this call will free the rrq */
687 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
688 else if (lpfc_send_rrq(phba, rrq)) {
689 /* if we send the rrq then the completion handler
690 * will clear the bit in the xribitmap.
692 lpfc_clr_rrq_active(phba, rrq->xritag,
699 * lpfc_get_active_rrq - Get the active RRQ for this exchange.
700 * @vport: Pointer to vport context object.
701 * @xri: The xri used in the exchange.
702 * @did: The targets DID for this exchange.
704 * returns NULL = rrq not found in the phba->active_rrq_list.
705 * rrq = rrq for this xri and target.
707 struct lpfc_node_rrq *
708 lpfc_get_active_rrq(struct lpfc_vport *vport, uint16_t xri, uint32_t did)
710 struct lpfc_hba *phba = vport->phba;
711 struct lpfc_node_rrq *rrq;
712 struct lpfc_node_rrq *nextrrq;
713 unsigned long iflags;
715 if (phba->sli_rev != LPFC_SLI_REV4)
717 spin_lock_irqsave(&phba->hbalock, iflags);
718 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) {
719 if (rrq->vport == vport && rrq->xritag == xri &&
720 rrq->nlp_DID == did){
721 list_del(&rrq->list);
722 spin_unlock_irqrestore(&phba->hbalock, iflags);
726 spin_unlock_irqrestore(&phba->hbalock, iflags);
731 * lpfc_cleanup_vports_rrqs - Remove and clear the active RRQ for this vport.
732 * @vport: Pointer to vport context object.
733 * @ndlp: Pointer to the lpfc_node_list structure.
734 * If ndlp is NULL Remove all active RRQs for this vport from the
735 * phba->active_rrq_list and clear the rrq.
736 * If ndlp is not NULL then only remove rrqs for this vport & this ndlp.
739 lpfc_cleanup_vports_rrqs(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
742 struct lpfc_hba *phba = vport->phba;
743 struct lpfc_node_rrq *rrq;
744 struct lpfc_node_rrq *nextrrq;
745 unsigned long iflags;
748 if (phba->sli_rev != LPFC_SLI_REV4)
751 lpfc_sli4_vport_delete_els_xri_aborted(vport);
752 lpfc_sli4_vport_delete_fcp_xri_aborted(vport);
754 spin_lock_irqsave(&phba->hbalock, iflags);
755 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list)
756 if ((rrq->vport == vport) && (!ndlp || rrq->ndlp == ndlp))
757 list_move(&rrq->list, &rrq_list);
758 spin_unlock_irqrestore(&phba->hbalock, iflags);
760 list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
761 list_del(&rrq->list);
762 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
767 * lpfc_cleanup_wt_rrqs - Remove all rrq's from the active list.
768 * @phba: Pointer to HBA context object.
770 * Remove all rrqs from the phba->active_rrq_list and free them by
771 * calling __lpfc_clr_active_rrq
775 lpfc_cleanup_wt_rrqs(struct lpfc_hba *phba)
777 struct lpfc_node_rrq *rrq;
778 struct lpfc_node_rrq *nextrrq;
779 unsigned long next_time;
780 unsigned long iflags;
783 if (phba->sli_rev != LPFC_SLI_REV4)
785 spin_lock_irqsave(&phba->hbalock, iflags);
786 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
787 next_time = jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov * 2));
788 list_splice_init(&phba->active_rrq_list, &rrq_list);
789 spin_unlock_irqrestore(&phba->hbalock, iflags);
791 list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
792 list_del(&rrq->list);
793 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
795 if (!list_empty(&phba->active_rrq_list))
796 mod_timer(&phba->rrq_tmr, next_time);
801 * lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
802 * @phba: Pointer to HBA context object.
803 * @ndlp: Targets nodelist pointer for this exchange.
804 * @xritag the xri in the bitmap to test.
806 * This function is called with hbalock held. This function
807 * returns 0 = rrq not active for this xri
808 * 1 = rrq is valid for this xri.
811 lpfc_test_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
816 if (test_bit(xritag, ndlp->active_rrqs.xri_bitmap))
823 * lpfc_set_rrq_active - set RRQ active bit in xri_bitmap.
824 * @phba: Pointer to HBA context object.
825 * @ndlp: nodelist pointer for this target.
826 * @xritag: xri used in this exchange.
827 * @rxid: Remote Exchange ID.
828 * @send_rrq: Flag used to determine if we should send rrq els cmd.
830 * This function takes the hbalock.
831 * The active bit is always set in the active rrq xri_bitmap even
832 * if there is no slot avaiable for the other rrq information.
834 * returns 0 rrq actived for this xri
835 * < 0 No memory or invalid ndlp.
838 lpfc_set_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
839 uint16_t xritag, uint16_t rxid, uint16_t send_rrq)
841 unsigned long iflags;
842 struct lpfc_node_rrq *rrq;
848 if (!phba->cfg_enable_rrq)
851 spin_lock_irqsave(&phba->hbalock, iflags);
852 if (phba->pport->load_flag & FC_UNLOADING) {
853 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
858 * set the active bit even if there is no mem available.
860 if (NLP_CHK_FREE_REQ(ndlp))
863 if (ndlp->vport && (ndlp->vport->load_flag & FC_UNLOADING))
866 if (test_and_set_bit(xritag, ndlp->active_rrqs.xri_bitmap))
869 spin_unlock_irqrestore(&phba->hbalock, iflags);
870 rrq = mempool_alloc(phba->rrq_pool, GFP_KERNEL);
872 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
873 "3155 Unable to allocate RRQ xri:0x%x rxid:0x%x"
874 " DID:0x%x Send:%d\n",
875 xritag, rxid, ndlp->nlp_DID, send_rrq);
878 if (phba->cfg_enable_rrq == 1)
879 rrq->send_rrq = send_rrq;
882 rrq->xritag = xritag;
883 rrq->rrq_stop_time = jiffies +
884 msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
886 rrq->nlp_DID = ndlp->nlp_DID;
887 rrq->vport = ndlp->vport;
889 spin_lock_irqsave(&phba->hbalock, iflags);
890 empty = list_empty(&phba->active_rrq_list);
891 list_add_tail(&rrq->list, &phba->active_rrq_list);
892 phba->hba_flag |= HBA_RRQ_ACTIVE;
894 lpfc_worker_wake_up(phba);
895 spin_unlock_irqrestore(&phba->hbalock, iflags);
898 spin_unlock_irqrestore(&phba->hbalock, iflags);
899 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
900 "2921 Can't set rrq active xri:0x%x rxid:0x%x"
901 " DID:0x%x Send:%d\n",
902 xritag, rxid, ndlp->nlp_DID, send_rrq);
907 * __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool
908 * @phba: Pointer to HBA context object.
909 * @piocb: Pointer to the iocbq.
911 * This function is called with hbalock held. This function
912 * gets a new driver sglq object from the sglq list. If the
913 * list is not empty then it is successful, it returns pointer to the newly
914 * allocated sglq object else it returns NULL.
916 static struct lpfc_sglq *
917 __lpfc_sli_get_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
919 struct list_head *lpfc_sgl_list = &phba->sli4_hba.lpfc_sgl_list;
920 struct lpfc_sglq *sglq = NULL;
921 struct lpfc_sglq *start_sglq = NULL;
922 struct lpfc_scsi_buf *lpfc_cmd;
923 struct lpfc_nodelist *ndlp;
926 if (piocbq->iocb_flag & LPFC_IO_FCP) {
927 lpfc_cmd = (struct lpfc_scsi_buf *) piocbq->context1;
928 ndlp = lpfc_cmd->rdata->pnode;
929 } else if ((piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) &&
930 !(piocbq->iocb_flag & LPFC_IO_LIBDFC))
931 ndlp = piocbq->context_un.ndlp;
932 else if (piocbq->iocb_flag & LPFC_IO_LIBDFC)
933 ndlp = piocbq->context_un.ndlp;
935 ndlp = piocbq->context1;
937 list_remove_head(lpfc_sgl_list, sglq, struct lpfc_sglq, list);
942 if (lpfc_test_rrq_active(phba, ndlp, sglq->sli4_lxritag)) {
943 /* This xri has an rrq outstanding for this DID.
944 * put it back in the list and get another xri.
946 list_add_tail(&sglq->list, lpfc_sgl_list);
948 list_remove_head(lpfc_sgl_list, sglq,
949 struct lpfc_sglq, list);
950 if (sglq == start_sglq) {
958 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
959 sglq->state = SGL_ALLOCATED;
965 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
966 * @phba: Pointer to HBA context object.
968 * This function is called with no lock held. This function
969 * allocates a new driver iocb object from the iocb pool. If the
970 * allocation is successful, it returns pointer to the newly
971 * allocated iocb object else it returns NULL.
974 lpfc_sli_get_iocbq(struct lpfc_hba *phba)
976 struct lpfc_iocbq * iocbq = NULL;
977 unsigned long iflags;
979 spin_lock_irqsave(&phba->hbalock, iflags);
980 iocbq = __lpfc_sli_get_iocbq(phba);
981 spin_unlock_irqrestore(&phba->hbalock, iflags);
986 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
987 * @phba: Pointer to HBA context object.
988 * @iocbq: Pointer to driver iocb object.
990 * This function is called with hbalock held to release driver
991 * iocb object to the iocb pool. The iotag in the iocb object
992 * does not change for each use of the iocb object. This function
993 * clears all other fields of the iocb object when it is freed.
994 * The sqlq structure that holds the xritag and phys and virtual
995 * mappings for the scatter gather list is retrieved from the
996 * active array of sglq. The get of the sglq pointer also clears
997 * the entry in the array. If the status of the IO indiactes that
998 * this IO was aborted then the sglq entry it put on the
999 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
1000 * IO has good status or fails for any other reason then the sglq
1001 * entry is added to the free list (lpfc_sgl_list).
1004 __lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1006 struct lpfc_sglq *sglq;
1007 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1008 unsigned long iflag = 0;
1009 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
1011 if (iocbq->sli4_xritag == NO_XRI)
1014 sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_lxritag);
1018 if ((iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) &&
1019 (sglq->state != SGL_XRI_ABORTED)) {
1020 spin_lock_irqsave(&phba->sli4_hba.abts_sgl_list_lock,
1022 list_add(&sglq->list,
1023 &phba->sli4_hba.lpfc_abts_els_sgl_list);
1024 spin_unlock_irqrestore(
1025 &phba->sli4_hba.abts_sgl_list_lock, iflag);
1027 sglq->state = SGL_FREED;
1029 list_add_tail(&sglq->list,
1030 &phba->sli4_hba.lpfc_sgl_list);
1032 /* Check if TXQ queue needs to be serviced */
1033 if (!list_empty(&pring->txq))
1034 lpfc_worker_wake_up(phba);
1040 * Clean all volatile data fields, preserve iotag and node struct.
1042 memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1043 iocbq->sli4_lxritag = NO_XRI;
1044 iocbq->sli4_xritag = NO_XRI;
1045 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1050 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
1051 * @phba: Pointer to HBA context object.
1052 * @iocbq: Pointer to driver iocb object.
1054 * This function is called with hbalock held to release driver
1055 * iocb object to the iocb pool. The iotag in the iocb object
1056 * does not change for each use of the iocb object. This function
1057 * clears all other fields of the iocb object when it is freed.
1060 __lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1062 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1066 * Clean all volatile data fields, preserve iotag and node struct.
1068 memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1069 iocbq->sli4_xritag = NO_XRI;
1070 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1074 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
1075 * @phba: Pointer to HBA context object.
1076 * @iocbq: Pointer to driver iocb object.
1078 * This function is called with hbalock held to release driver
1079 * iocb object to the iocb pool. The iotag in the iocb object
1080 * does not change for each use of the iocb object. This function
1081 * clears all other fields of the iocb object when it is freed.
1084 __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1086 phba->__lpfc_sli_release_iocbq(phba, iocbq);
1091 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
1092 * @phba: Pointer to HBA context object.
1093 * @iocbq: Pointer to driver iocb object.
1095 * This function is called with no lock held to release the iocb to
1099 lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1101 unsigned long iflags;
1104 * Clean all volatile data fields, preserve iotag and node struct.
1106 spin_lock_irqsave(&phba->hbalock, iflags);
1107 __lpfc_sli_release_iocbq(phba, iocbq);
1108 spin_unlock_irqrestore(&phba->hbalock, iflags);
1112 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
1113 * @phba: Pointer to HBA context object.
1114 * @iocblist: List of IOCBs.
1115 * @ulpstatus: ULP status in IOCB command field.
1116 * @ulpWord4: ULP word-4 in IOCB command field.
1118 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
1119 * on the list by invoking the complete callback function associated with the
1120 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
1124 lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
1125 uint32_t ulpstatus, uint32_t ulpWord4)
1127 struct lpfc_iocbq *piocb;
1129 while (!list_empty(iocblist)) {
1130 list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
1131 if (!piocb->iocb_cmpl)
1132 lpfc_sli_release_iocbq(phba, piocb);
1134 piocb->iocb.ulpStatus = ulpstatus;
1135 piocb->iocb.un.ulpWord[4] = ulpWord4;
1136 (piocb->iocb_cmpl) (phba, piocb, piocb);
1143 * lpfc_sli_iocb_cmd_type - Get the iocb type
1144 * @iocb_cmnd: iocb command code.
1146 * This function is called by ring event handler function to get the iocb type.
1147 * This function translates the iocb command to an iocb command type used to
1148 * decide the final disposition of each completed IOCB.
1149 * The function returns
1150 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
1151 * LPFC_SOL_IOCB if it is a solicited iocb completion
1152 * LPFC_ABORT_IOCB if it is an abort iocb
1153 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
1155 * The caller is not required to hold any lock.
1157 static lpfc_iocb_type
1158 lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
1160 lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
1162 if (iocb_cmnd > CMD_MAX_IOCB_CMD)
1165 switch (iocb_cmnd) {
1166 case CMD_XMIT_SEQUENCE_CR:
1167 case CMD_XMIT_SEQUENCE_CX:
1168 case CMD_XMIT_BCAST_CN:
1169 case CMD_XMIT_BCAST_CX:
1170 case CMD_ELS_REQUEST_CR:
1171 case CMD_ELS_REQUEST_CX:
1172 case CMD_CREATE_XRI_CR:
1173 case CMD_CREATE_XRI_CX:
1174 case CMD_GET_RPI_CN:
1175 case CMD_XMIT_ELS_RSP_CX:
1176 case CMD_GET_RPI_CR:
1177 case CMD_FCP_IWRITE_CR:
1178 case CMD_FCP_IWRITE_CX:
1179 case CMD_FCP_IREAD_CR:
1180 case CMD_FCP_IREAD_CX:
1181 case CMD_FCP_ICMND_CR:
1182 case CMD_FCP_ICMND_CX:
1183 case CMD_FCP_TSEND_CX:
1184 case CMD_FCP_TRSP_CX:
1185 case CMD_FCP_TRECEIVE_CX:
1186 case CMD_FCP_AUTO_TRSP_CX:
1187 case CMD_ADAPTER_MSG:
1188 case CMD_ADAPTER_DUMP:
1189 case CMD_XMIT_SEQUENCE64_CR:
1190 case CMD_XMIT_SEQUENCE64_CX:
1191 case CMD_XMIT_BCAST64_CN:
1192 case CMD_XMIT_BCAST64_CX:
1193 case CMD_ELS_REQUEST64_CR:
1194 case CMD_ELS_REQUEST64_CX:
1195 case CMD_FCP_IWRITE64_CR:
1196 case CMD_FCP_IWRITE64_CX:
1197 case CMD_FCP_IREAD64_CR:
1198 case CMD_FCP_IREAD64_CX:
1199 case CMD_FCP_ICMND64_CR:
1200 case CMD_FCP_ICMND64_CX:
1201 case CMD_FCP_TSEND64_CX:
1202 case CMD_FCP_TRSP64_CX:
1203 case CMD_FCP_TRECEIVE64_CX:
1204 case CMD_GEN_REQUEST64_CR:
1205 case CMD_GEN_REQUEST64_CX:
1206 case CMD_XMIT_ELS_RSP64_CX:
1207 case DSSCMD_IWRITE64_CR:
1208 case DSSCMD_IWRITE64_CX:
1209 case DSSCMD_IREAD64_CR:
1210 case DSSCMD_IREAD64_CX:
1211 type = LPFC_SOL_IOCB;
1213 case CMD_ABORT_XRI_CN:
1214 case CMD_ABORT_XRI_CX:
1215 case CMD_CLOSE_XRI_CN:
1216 case CMD_CLOSE_XRI_CX:
1217 case CMD_XRI_ABORTED_CX:
1218 case CMD_ABORT_MXRI64_CN:
1219 case CMD_XMIT_BLS_RSP64_CX:
1220 type = LPFC_ABORT_IOCB;
1222 case CMD_RCV_SEQUENCE_CX:
1223 case CMD_RCV_ELS_REQ_CX:
1224 case CMD_RCV_SEQUENCE64_CX:
1225 case CMD_RCV_ELS_REQ64_CX:
1226 case CMD_ASYNC_STATUS:
1227 case CMD_IOCB_RCV_SEQ64_CX:
1228 case CMD_IOCB_RCV_ELS64_CX:
1229 case CMD_IOCB_RCV_CONT64_CX:
1230 case CMD_IOCB_RET_XRI64_CX:
1231 type = LPFC_UNSOL_IOCB;
1233 case CMD_IOCB_XMIT_MSEQ64_CR:
1234 case CMD_IOCB_XMIT_MSEQ64_CX:
1235 case CMD_IOCB_RCV_SEQ_LIST64_CX:
1236 case CMD_IOCB_RCV_ELS_LIST64_CX:
1237 case CMD_IOCB_CLOSE_EXTENDED_CN:
1238 case CMD_IOCB_ABORT_EXTENDED_CN:
1239 case CMD_IOCB_RET_HBQE64_CN:
1240 case CMD_IOCB_FCP_IBIDIR64_CR:
1241 case CMD_IOCB_FCP_IBIDIR64_CX:
1242 case CMD_IOCB_FCP_ITASKMGT64_CX:
1243 case CMD_IOCB_LOGENTRY_CN:
1244 case CMD_IOCB_LOGENTRY_ASYNC_CN:
1245 printk("%s - Unhandled SLI-3 Command x%x\n",
1246 __func__, iocb_cmnd);
1247 type = LPFC_UNKNOWN_IOCB;
1250 type = LPFC_UNKNOWN_IOCB;
1258 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
1259 * @phba: Pointer to HBA context object.
1261 * This function is called from SLI initialization code
1262 * to configure every ring of the HBA's SLI interface. The
1263 * caller is not required to hold any lock. This function issues
1264 * a config_ring mailbox command for each ring.
1265 * This function returns zero if successful else returns a negative
1269 lpfc_sli_ring_map(struct lpfc_hba *phba)
1271 struct lpfc_sli *psli = &phba->sli;
1276 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1280 phba->link_state = LPFC_INIT_MBX_CMDS;
1281 for (i = 0; i < psli->num_rings; i++) {
1282 lpfc_config_ring(phba, i, pmb);
1283 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
1284 if (rc != MBX_SUCCESS) {
1285 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1286 "0446 Adapter failed to init (%d), "
1287 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
1289 rc, pmbox->mbxCommand,
1290 pmbox->mbxStatus, i);
1291 phba->link_state = LPFC_HBA_ERROR;
1296 mempool_free(pmb, phba->mbox_mem_pool);
1301 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
1302 * @phba: Pointer to HBA context object.
1303 * @pring: Pointer to driver SLI ring object.
1304 * @piocb: Pointer to the driver iocb object.
1306 * This function is called with hbalock held. The function adds the
1307 * new iocb to txcmplq of the given ring. This function always returns
1308 * 0. If this function is called for ELS ring, this function checks if
1309 * there is a vport associated with the ELS command. This function also
1310 * starts els_tmofunc timer if this is an ELS command.
1313 lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1314 struct lpfc_iocbq *piocb)
1316 list_add_tail(&piocb->list, &pring->txcmplq);
1317 piocb->iocb_flag |= LPFC_IO_ON_TXCMPLQ;
1319 if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
1320 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
1321 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
1325 mod_timer(&piocb->vport->els_tmofunc,
1327 msecs_to_jiffies(1000 * (phba->fc_ratov << 1)));
1335 * lpfc_sli_ringtx_get - Get first element of the txq
1336 * @phba: Pointer to HBA context object.
1337 * @pring: Pointer to driver SLI ring object.
1339 * This function is called with hbalock held to get next
1340 * iocb in txq of the given ring. If there is any iocb in
1341 * the txq, the function returns first iocb in the list after
1342 * removing the iocb from the list, else it returns NULL.
1345 lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1347 struct lpfc_iocbq *cmd_iocb;
1349 list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
1354 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
1355 * @phba: Pointer to HBA context object.
1356 * @pring: Pointer to driver SLI ring object.
1358 * This function is called with hbalock held and the caller must post the
1359 * iocb without releasing the lock. If the caller releases the lock,
1360 * iocb slot returned by the function is not guaranteed to be available.
1361 * The function returns pointer to the next available iocb slot if there
1362 * is available slot in the ring, else it returns NULL.
1363 * If the get index of the ring is ahead of the put index, the function
1364 * will post an error attention event to the worker thread to take the
1365 * HBA to offline state.
1368 lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1370 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
1371 uint32_t max_cmd_idx = pring->sli.sli3.numCiocb;
1372 if ((pring->sli.sli3.next_cmdidx == pring->sli.sli3.cmdidx) &&
1373 (++pring->sli.sli3.next_cmdidx >= max_cmd_idx))
1374 pring->sli.sli3.next_cmdidx = 0;
1376 if (unlikely(pring->sli.sli3.local_getidx ==
1377 pring->sli.sli3.next_cmdidx)) {
1379 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
1381 if (unlikely(pring->sli.sli3.local_getidx >= max_cmd_idx)) {
1382 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1383 "0315 Ring %d issue: portCmdGet %d "
1384 "is bigger than cmd ring %d\n",
1386 pring->sli.sli3.local_getidx,
1389 phba->link_state = LPFC_HBA_ERROR;
1391 * All error attention handlers are posted to
1394 phba->work_ha |= HA_ERATT;
1395 phba->work_hs = HS_FFER3;
1397 lpfc_worker_wake_up(phba);
1402 if (pring->sli.sli3.local_getidx == pring->sli.sli3.next_cmdidx)
1406 return lpfc_cmd_iocb(phba, pring);
1410 * lpfc_sli_next_iotag - Get an iotag for the iocb
1411 * @phba: Pointer to HBA context object.
1412 * @iocbq: Pointer to driver iocb object.
1414 * This function gets an iotag for the iocb. If there is no unused iotag and
1415 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
1416 * array and assigns a new iotag.
1417 * The function returns the allocated iotag if successful, else returns zero.
1418 * Zero is not a valid iotag.
1419 * The caller is not required to hold any lock.
1422 lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1424 struct lpfc_iocbq **new_arr;
1425 struct lpfc_iocbq **old_arr;
1427 struct lpfc_sli *psli = &phba->sli;
1430 spin_lock_irq(&phba->hbalock);
1431 iotag = psli->last_iotag;
1432 if(++iotag < psli->iocbq_lookup_len) {
1433 psli->last_iotag = iotag;
1434 psli->iocbq_lookup[iotag] = iocbq;
1435 spin_unlock_irq(&phba->hbalock);
1436 iocbq->iotag = iotag;
1438 } else if (psli->iocbq_lookup_len < (0xffff
1439 - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
1440 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
1441 spin_unlock_irq(&phba->hbalock);
1442 new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *),
1445 spin_lock_irq(&phba->hbalock);
1446 old_arr = psli->iocbq_lookup;
1447 if (new_len <= psli->iocbq_lookup_len) {
1448 /* highly unprobable case */
1450 iotag = psli->last_iotag;
1451 if(++iotag < psli->iocbq_lookup_len) {
1452 psli->last_iotag = iotag;
1453 psli->iocbq_lookup[iotag] = iocbq;
1454 spin_unlock_irq(&phba->hbalock);
1455 iocbq->iotag = iotag;
1458 spin_unlock_irq(&phba->hbalock);
1461 if (psli->iocbq_lookup)
1462 memcpy(new_arr, old_arr,
1463 ((psli->last_iotag + 1) *
1464 sizeof (struct lpfc_iocbq *)));
1465 psli->iocbq_lookup = new_arr;
1466 psli->iocbq_lookup_len = new_len;
1467 psli->last_iotag = iotag;
1468 psli->iocbq_lookup[iotag] = iocbq;
1469 spin_unlock_irq(&phba->hbalock);
1470 iocbq->iotag = iotag;
1475 spin_unlock_irq(&phba->hbalock);
1477 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
1478 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1485 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
1486 * @phba: Pointer to HBA context object.
1487 * @pring: Pointer to driver SLI ring object.
1488 * @iocb: Pointer to iocb slot in the ring.
1489 * @nextiocb: Pointer to driver iocb object which need to be
1490 * posted to firmware.
1492 * This function is called with hbalock held to post a new iocb to
1493 * the firmware. This function copies the new iocb to ring iocb slot and
1494 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1495 * a completion call back for this iocb else the function will free the
1499 lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1500 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
1505 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
1508 if (pring->ringno == LPFC_ELS_RING) {
1509 lpfc_debugfs_slow_ring_trc(phba,
1510 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1511 *(((uint32_t *) &nextiocb->iocb) + 4),
1512 *(((uint32_t *) &nextiocb->iocb) + 6),
1513 *(((uint32_t *) &nextiocb->iocb) + 7));
1517 * Issue iocb command to adapter
1519 lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
1521 pring->stats.iocb_cmd++;
1524 * If there is no completion routine to call, we can release the
1525 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1526 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1528 if (nextiocb->iocb_cmpl)
1529 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
1531 __lpfc_sli_release_iocbq(phba, nextiocb);
1534 * Let the HBA know what IOCB slot will be the next one the
1535 * driver will put a command into.
1537 pring->sli.sli3.cmdidx = pring->sli.sli3.next_cmdidx;
1538 writel(pring->sli.sli3.cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
1542 * lpfc_sli_update_full_ring - Update the chip attention register
1543 * @phba: Pointer to HBA context object.
1544 * @pring: Pointer to driver SLI ring object.
1546 * The caller is not required to hold any lock for calling this function.
1547 * This function updates the chip attention bits for the ring to inform firmware
1548 * that there are pending work to be done for this ring and requests an
1549 * interrupt when there is space available in the ring. This function is
1550 * called when the driver is unable to post more iocbs to the ring due
1551 * to unavailability of space in the ring.
1554 lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1556 int ringno = pring->ringno;
1558 pring->flag |= LPFC_CALL_RING_AVAILABLE;
1563 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1564 * The HBA will tell us when an IOCB entry is available.
1566 writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
1567 readl(phba->CAregaddr); /* flush */
1569 pring->stats.iocb_cmd_full++;
1573 * lpfc_sli_update_ring - Update chip attention register
1574 * @phba: Pointer to HBA context object.
1575 * @pring: Pointer to driver SLI ring object.
1577 * This function updates the chip attention register bit for the
1578 * given ring to inform HBA that there is more work to be done
1579 * in this ring. The caller is not required to hold any lock.
1582 lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1584 int ringno = pring->ringno;
1587 * Tell the HBA that there is work to do in this ring.
1589 if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
1591 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
1592 readl(phba->CAregaddr); /* flush */
1597 * lpfc_sli_resume_iocb - Process iocbs in the txq
1598 * @phba: Pointer to HBA context object.
1599 * @pring: Pointer to driver SLI ring object.
1601 * This function is called with hbalock held to post pending iocbs
1602 * in the txq to the firmware. This function is called when driver
1603 * detects space available in the ring.
1606 lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1609 struct lpfc_iocbq *nextiocb;
1613 * (a) there is anything on the txq to send
1615 * (c) link attention events can be processed (fcp ring only)
1616 * (d) IOCB processing is not blocked by the outstanding mbox command.
1619 if (lpfc_is_link_up(phba) &&
1620 (!list_empty(&pring->txq)) &&
1621 (pring->ringno != phba->sli.fcp_ring ||
1622 phba->sli.sli_flag & LPFC_PROCESS_LA)) {
1624 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
1625 (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
1626 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
1629 lpfc_sli_update_ring(phba, pring);
1631 lpfc_sli_update_full_ring(phba, pring);
1638 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
1639 * @phba: Pointer to HBA context object.
1640 * @hbqno: HBQ number.
1642 * This function is called with hbalock held to get the next
1643 * available slot for the given HBQ. If there is free slot
1644 * available for the HBQ it will return pointer to the next available
1645 * HBQ entry else it will return NULL.
1647 static struct lpfc_hbq_entry *
1648 lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
1650 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1652 if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
1653 ++hbqp->next_hbqPutIdx >= hbqp->entry_count)
1654 hbqp->next_hbqPutIdx = 0;
1656 if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
1657 uint32_t raw_index = phba->hbq_get[hbqno];
1658 uint32_t getidx = le32_to_cpu(raw_index);
1660 hbqp->local_hbqGetIdx = getidx;
1662 if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
1663 lpfc_printf_log(phba, KERN_ERR,
1664 LOG_SLI | LOG_VPORT,
1665 "1802 HBQ %d: local_hbqGetIdx "
1666 "%u is > than hbqp->entry_count %u\n",
1667 hbqno, hbqp->local_hbqGetIdx,
1670 phba->link_state = LPFC_HBA_ERROR;
1674 if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
1678 return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
1683 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
1684 * @phba: Pointer to HBA context object.
1686 * This function is called with no lock held to free all the
1687 * hbq buffers while uninitializing the SLI interface. It also
1688 * frees the HBQ buffers returned by the firmware but not yet
1689 * processed by the upper layers.
1692 lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
1694 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
1695 struct hbq_dmabuf *hbq_buf;
1696 unsigned long flags;
1700 hbq_count = lpfc_sli_hbq_count();
1701 /* Return all memory used by all HBQs */
1702 spin_lock_irqsave(&phba->hbalock, flags);
1703 for (i = 0; i < hbq_count; ++i) {
1704 list_for_each_entry_safe(dmabuf, next_dmabuf,
1705 &phba->hbqs[i].hbq_buffer_list, list) {
1706 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1707 list_del(&hbq_buf->dbuf.list);
1708 (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
1710 phba->hbqs[i].buffer_count = 0;
1712 /* Return all HBQ buffer that are in-fly */
1713 list_for_each_entry_safe(dmabuf, next_dmabuf, &phba->rb_pend_list,
1715 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1716 list_del(&hbq_buf->dbuf.list);
1717 if (hbq_buf->tag == -1) {
1718 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1721 hbqno = hbq_buf->tag >> 16;
1722 if (hbqno >= LPFC_MAX_HBQS)
1723 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1726 (phba->hbqs[hbqno].hbq_free_buffer)(phba,
1731 /* Mark the HBQs not in use */
1732 phba->hbq_in_use = 0;
1733 spin_unlock_irqrestore(&phba->hbalock, flags);
1737 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
1738 * @phba: Pointer to HBA context object.
1739 * @hbqno: HBQ number.
1740 * @hbq_buf: Pointer to HBQ buffer.
1742 * This function is called with the hbalock held to post a
1743 * hbq buffer to the firmware. If the function finds an empty
1744 * slot in the HBQ, it will post the buffer. The function will return
1745 * pointer to the hbq entry if it successfully post the buffer
1746 * else it will return NULL.
1749 lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
1750 struct hbq_dmabuf *hbq_buf)
1752 return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
1756 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
1757 * @phba: Pointer to HBA context object.
1758 * @hbqno: HBQ number.
1759 * @hbq_buf: Pointer to HBQ buffer.
1761 * This function is called with the hbalock held to post a hbq buffer to the
1762 * firmware. If the function finds an empty slot in the HBQ, it will post the
1763 * buffer and place it on the hbq_buffer_list. The function will return zero if
1764 * it successfully post the buffer else it will return an error.
1767 lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
1768 struct hbq_dmabuf *hbq_buf)
1770 struct lpfc_hbq_entry *hbqe;
1771 dma_addr_t physaddr = hbq_buf->dbuf.phys;
1773 /* Get next HBQ entry slot to use */
1774 hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
1776 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1778 hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
1779 hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
1780 hbqe->bde.tus.f.bdeSize = hbq_buf->size;
1781 hbqe->bde.tus.f.bdeFlags = 0;
1782 hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
1783 hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
1785 hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
1786 writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
1788 readl(phba->hbq_put + hbqno);
1789 list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
1796 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
1797 * @phba: Pointer to HBA context object.
1798 * @hbqno: HBQ number.
1799 * @hbq_buf: Pointer to HBQ buffer.
1801 * This function is called with the hbalock held to post an RQE to the SLI4
1802 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
1803 * the hbq_buffer_list and return zero, otherwise it will return an error.
1806 lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
1807 struct hbq_dmabuf *hbq_buf)
1810 struct lpfc_rqe hrqe;
1811 struct lpfc_rqe drqe;
1813 hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
1814 hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
1815 drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
1816 drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
1817 rc = lpfc_sli4_rq_put(phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
1822 list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
1826 /* HBQ for ELS and CT traffic. */
1827 static struct lpfc_hbq_init lpfc_els_hbq = {
1832 .ring_mask = (1 << LPFC_ELS_RING),
1838 /* HBQ for the extra ring if needed */
1839 static struct lpfc_hbq_init lpfc_extra_hbq = {
1844 .ring_mask = (1 << LPFC_EXTRA_RING),
1851 struct lpfc_hbq_init *lpfc_hbq_defs[] = {
1857 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
1858 * @phba: Pointer to HBA context object.
1859 * @hbqno: HBQ number.
1860 * @count: Number of HBQ buffers to be posted.
1862 * This function is called with no lock held to post more hbq buffers to the
1863 * given HBQ. The function returns the number of HBQ buffers successfully
1867 lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
1869 uint32_t i, posted = 0;
1870 unsigned long flags;
1871 struct hbq_dmabuf *hbq_buffer;
1872 LIST_HEAD(hbq_buf_list);
1873 if (!phba->hbqs[hbqno].hbq_alloc_buffer)
1876 if ((phba->hbqs[hbqno].buffer_count + count) >
1877 lpfc_hbq_defs[hbqno]->entry_count)
1878 count = lpfc_hbq_defs[hbqno]->entry_count -
1879 phba->hbqs[hbqno].buffer_count;
1882 /* Allocate HBQ entries */
1883 for (i = 0; i < count; i++) {
1884 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
1887 list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
1889 /* Check whether HBQ is still in use */
1890 spin_lock_irqsave(&phba->hbalock, flags);
1891 if (!phba->hbq_in_use)
1893 while (!list_empty(&hbq_buf_list)) {
1894 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1896 hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
1898 if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
1899 phba->hbqs[hbqno].buffer_count++;
1902 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1904 spin_unlock_irqrestore(&phba->hbalock, flags);
1907 spin_unlock_irqrestore(&phba->hbalock, flags);
1908 while (!list_empty(&hbq_buf_list)) {
1909 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1911 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1917 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
1918 * @phba: Pointer to HBA context object.
1921 * This function posts more buffers to the HBQ. This function
1922 * is called with no lock held. The function returns the number of HBQ entries
1923 * successfully allocated.
1926 lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
1928 if (phba->sli_rev == LPFC_SLI_REV4)
1931 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1932 lpfc_hbq_defs[qno]->add_count);
1936 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
1937 * @phba: Pointer to HBA context object.
1938 * @qno: HBQ queue number.
1940 * This function is called from SLI initialization code path with
1941 * no lock held to post initial HBQ buffers to firmware. The
1942 * function returns the number of HBQ entries successfully allocated.
1945 lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
1947 if (phba->sli_rev == LPFC_SLI_REV4)
1948 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1949 lpfc_hbq_defs[qno]->entry_count);
1951 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1952 lpfc_hbq_defs[qno]->init_count);
1956 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
1957 * @phba: Pointer to HBA context object.
1958 * @hbqno: HBQ number.
1960 * This function removes the first hbq buffer on an hbq list and returns a
1961 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
1963 static struct hbq_dmabuf *
1964 lpfc_sli_hbqbuf_get(struct list_head *rb_list)
1966 struct lpfc_dmabuf *d_buf;
1968 list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
1971 return container_of(d_buf, struct hbq_dmabuf, dbuf);
1975 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
1976 * @phba: Pointer to HBA context object.
1977 * @tag: Tag of the hbq buffer.
1979 * This function is called with hbalock held. This function searches
1980 * for the hbq buffer associated with the given tag in the hbq buffer
1981 * list. If it finds the hbq buffer, it returns the hbq_buffer other wise
1984 static struct hbq_dmabuf *
1985 lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
1987 struct lpfc_dmabuf *d_buf;
1988 struct hbq_dmabuf *hbq_buf;
1992 if (hbqno >= LPFC_MAX_HBQS)
1995 spin_lock_irq(&phba->hbalock);
1996 list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
1997 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
1998 if (hbq_buf->tag == tag) {
1999 spin_unlock_irq(&phba->hbalock);
2003 spin_unlock_irq(&phba->hbalock);
2004 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT,
2005 "1803 Bad hbq tag. Data: x%x x%x\n",
2006 tag, phba->hbqs[tag >> 16].buffer_count);
2011 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
2012 * @phba: Pointer to HBA context object.
2013 * @hbq_buffer: Pointer to HBQ buffer.
2015 * This function is called with hbalock. This function gives back
2016 * the hbq buffer to firmware. If the HBQ does not have space to
2017 * post the buffer, it will free the buffer.
2020 lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
2025 hbqno = hbq_buffer->tag >> 16;
2026 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
2027 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
2032 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
2033 * @mbxCommand: mailbox command code.
2035 * This function is called by the mailbox event handler function to verify
2036 * that the completed mailbox command is a legitimate mailbox command. If the
2037 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
2038 * and the mailbox event handler will take the HBA offline.
2041 lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
2045 switch (mbxCommand) {
2049 case MBX_WRITE_VPARMS:
2050 case MBX_RUN_BIU_DIAG:
2053 case MBX_CONFIG_LINK:
2054 case MBX_CONFIG_RING:
2055 case MBX_RESET_RING:
2056 case MBX_READ_CONFIG:
2057 case MBX_READ_RCONFIG:
2058 case MBX_READ_SPARM:
2059 case MBX_READ_STATUS:
2063 case MBX_READ_LNK_STAT:
2065 case MBX_UNREG_LOGIN:
2067 case MBX_DUMP_MEMORY:
2068 case MBX_DUMP_CONTEXT:
2071 case MBX_UPDATE_CFG:
2073 case MBX_DEL_LD_ENTRY:
2074 case MBX_RUN_PROGRAM:
2076 case MBX_SET_VARIABLE:
2077 case MBX_UNREG_D_ID:
2078 case MBX_KILL_BOARD:
2079 case MBX_CONFIG_FARP:
2082 case MBX_RUN_BIU_DIAG64:
2083 case MBX_CONFIG_PORT:
2084 case MBX_READ_SPARM64:
2085 case MBX_READ_RPI64:
2086 case MBX_REG_LOGIN64:
2087 case MBX_READ_TOPOLOGY:
2090 case MBX_LOAD_EXP_ROM:
2091 case MBX_ASYNCEVT_ENABLE:
2095 case MBX_PORT_CAPABILITIES:
2096 case MBX_PORT_IOV_CONTROL:
2097 case MBX_SLI4_CONFIG:
2098 case MBX_SLI4_REQ_FTRS:
2100 case MBX_UNREG_FCFI:
2105 case MBX_RESUME_RPI:
2106 case MBX_READ_EVENT_LOG_STATUS:
2107 case MBX_READ_EVENT_LOG:
2108 case MBX_SECURITY_MGMT:
2110 case MBX_ACCESS_VDATA:
2121 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
2122 * @phba: Pointer to HBA context object.
2123 * @pmboxq: Pointer to mailbox command.
2125 * This is completion handler function for mailbox commands issued from
2126 * lpfc_sli_issue_mbox_wait function. This function is called by the
2127 * mailbox event handler function with no lock held. This function
2128 * will wake up thread waiting on the wait queue pointed by context1
2132 lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
2134 wait_queue_head_t *pdone_q;
2135 unsigned long drvr_flag;
2138 * If pdone_q is empty, the driver thread gave up waiting and
2139 * continued running.
2141 pmboxq->mbox_flag |= LPFC_MBX_WAKE;
2142 spin_lock_irqsave(&phba->hbalock, drvr_flag);
2143 pdone_q = (wait_queue_head_t *) pmboxq->context1;
2145 wake_up_interruptible(pdone_q);
2146 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
2152 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
2153 * @phba: Pointer to HBA context object.
2154 * @pmb: Pointer to mailbox object.
2156 * This function is the default mailbox completion handler. It
2157 * frees the memory resources associated with the completed mailbox
2158 * command. If the completed command is a REG_LOGIN mailbox command,
2159 * this function will issue a UREG_LOGIN to re-claim the RPI.
2162 lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2164 struct lpfc_vport *vport = pmb->vport;
2165 struct lpfc_dmabuf *mp;
2166 struct lpfc_nodelist *ndlp;
2167 struct Scsi_Host *shost;
2171 mp = (struct lpfc_dmabuf *) (pmb->context1);
2174 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2179 * If a REG_LOGIN succeeded after node is destroyed or node
2180 * is in re-discovery driver need to cleanup the RPI.
2182 if (!(phba->pport->load_flag & FC_UNLOADING) &&
2183 pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
2184 !pmb->u.mb.mbxStatus) {
2185 rpi = pmb->u.mb.un.varWords[0];
2186 vpi = pmb->u.mb.un.varRegLogin.vpi;
2187 lpfc_unreg_login(phba, vpi, rpi, pmb);
2188 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2189 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2190 if (rc != MBX_NOT_FINISHED)
2194 if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) &&
2195 !(phba->pport->load_flag & FC_UNLOADING) &&
2196 !pmb->u.mb.mbxStatus) {
2197 shost = lpfc_shost_from_vport(vport);
2198 spin_lock_irq(shost->host_lock);
2199 vport->vpi_state |= LPFC_VPI_REGISTERED;
2200 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
2201 spin_unlock_irq(shost->host_lock);
2204 if (pmb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
2205 ndlp = (struct lpfc_nodelist *)pmb->context2;
2207 pmb->context2 = NULL;
2210 /* Check security permission status on INIT_LINK mailbox command */
2211 if ((pmb->u.mb.mbxCommand == MBX_INIT_LINK) &&
2212 (pmb->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
2213 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2214 "2860 SLI authentication is required "
2215 "for INIT_LINK but has not done yet\n");
2217 if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
2218 lpfc_sli4_mbox_cmd_free(phba, pmb);
2220 mempool_free(pmb, phba->mbox_mem_pool);
2224 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
2225 * @phba: Pointer to HBA context object.
2227 * This function is called with no lock held. This function processes all
2228 * the completed mailbox commands and gives it to upper layers. The interrupt
2229 * service routine processes mailbox completion interrupt and adds completed
2230 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
2231 * Worker thread call lpfc_sli_handle_mb_event, which will return the
2232 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
2233 * function returns the mailbox commands to the upper layer by calling the
2234 * completion handler function of each mailbox.
2237 lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
2244 phba->sli.slistat.mbox_event++;
2246 /* Get all completed mailboxe buffers into the cmplq */
2247 spin_lock_irq(&phba->hbalock);
2248 list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
2249 spin_unlock_irq(&phba->hbalock);
2251 /* Get a Mailbox buffer to setup mailbox commands for callback */
2253 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
2259 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
2261 lpfc_debugfs_disc_trc(pmb->vport,
2262 LPFC_DISC_TRC_MBOX_VPORT,
2263 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
2264 (uint32_t)pmbox->mbxCommand,
2265 pmbox->un.varWords[0],
2266 pmbox->un.varWords[1]);
2269 lpfc_debugfs_disc_trc(phba->pport,
2271 "MBOX cmpl: cmd:x%x mb:x%x x%x",
2272 (uint32_t)pmbox->mbxCommand,
2273 pmbox->un.varWords[0],
2274 pmbox->un.varWords[1]);
2279 * It is a fatal error if unknown mbox command completion.
2281 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
2283 /* Unknown mailbox command compl */
2284 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2285 "(%d):0323 Unknown Mailbox command "
2286 "x%x (x%x/x%x) Cmpl\n",
2287 pmb->vport ? pmb->vport->vpi : 0,
2289 lpfc_sli_config_mbox_subsys_get(phba,
2291 lpfc_sli_config_mbox_opcode_get(phba,
2293 phba->link_state = LPFC_HBA_ERROR;
2294 phba->work_hs = HS_FFER3;
2295 lpfc_handle_eratt(phba);
2299 if (pmbox->mbxStatus) {
2300 phba->sli.slistat.mbox_stat_err++;
2301 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
2302 /* Mbox cmd cmpl error - RETRYing */
2303 lpfc_printf_log(phba, KERN_INFO,
2305 "(%d):0305 Mbox cmd cmpl "
2306 "error - RETRYing Data: x%x "
2307 "(x%x/x%x) x%x x%x x%x\n",
2308 pmb->vport ? pmb->vport->vpi : 0,
2310 lpfc_sli_config_mbox_subsys_get(phba,
2312 lpfc_sli_config_mbox_opcode_get(phba,
2315 pmbox->un.varWords[0],
2316 pmb->vport->port_state);
2317 pmbox->mbxStatus = 0;
2318 pmbox->mbxOwner = OWN_HOST;
2319 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2320 if (rc != MBX_NOT_FINISHED)
2325 /* Mailbox cmd <cmd> Cmpl <cmpl> */
2326 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
2327 "(%d):0307 Mailbox cmd x%x (x%x/x%x) Cmpl x%p "
2328 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
2330 pmb->vport ? pmb->vport->vpi : 0,
2332 lpfc_sli_config_mbox_subsys_get(phba, pmb),
2333 lpfc_sli_config_mbox_opcode_get(phba, pmb),
2335 *((uint32_t *) pmbox),
2336 pmbox->un.varWords[0],
2337 pmbox->un.varWords[1],
2338 pmbox->un.varWords[2],
2339 pmbox->un.varWords[3],
2340 pmbox->un.varWords[4],
2341 pmbox->un.varWords[5],
2342 pmbox->un.varWords[6],
2343 pmbox->un.varWords[7],
2344 pmbox->un.varWords[8],
2345 pmbox->un.varWords[9],
2346 pmbox->un.varWords[10]);
2349 pmb->mbox_cmpl(phba,pmb);
2355 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
2356 * @phba: Pointer to HBA context object.
2357 * @pring: Pointer to driver SLI ring object.
2360 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
2361 * is set in the tag the buffer is posted for a particular exchange,
2362 * the function will return the buffer without replacing the buffer.
2363 * If the buffer is for unsolicited ELS or CT traffic, this function
2364 * returns the buffer and also posts another buffer to the firmware.
2366 static struct lpfc_dmabuf *
2367 lpfc_sli_get_buff(struct lpfc_hba *phba,
2368 struct lpfc_sli_ring *pring,
2371 struct hbq_dmabuf *hbq_entry;
2373 if (tag & QUE_BUFTAG_BIT)
2374 return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
2375 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
2378 return &hbq_entry->dbuf;
2382 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
2383 * @phba: Pointer to HBA context object.
2384 * @pring: Pointer to driver SLI ring object.
2385 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
2386 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
2387 * @fch_type: the type for the first frame of the sequence.
2389 * This function is called with no lock held. This function uses the r_ctl and
2390 * type of the received sequence to find the correct callback function to call
2391 * to process the sequence.
2394 lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2395 struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
2400 /* unSolicited Responses */
2401 if (pring->prt[0].profile) {
2402 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
2403 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
2407 /* We must search, based on rctl / type
2408 for the right routine */
2409 for (i = 0; i < pring->num_mask; i++) {
2410 if ((pring->prt[i].rctl == fch_r_ctl) &&
2411 (pring->prt[i].type == fch_type)) {
2412 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
2413 (pring->prt[i].lpfc_sli_rcv_unsol_event)
2414 (phba, pring, saveq);
2422 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
2423 * @phba: Pointer to HBA context object.
2424 * @pring: Pointer to driver SLI ring object.
2425 * @saveq: Pointer to the unsolicited iocb.
2427 * This function is called with no lock held by the ring event handler
2428 * when there is an unsolicited iocb posted to the response ring by the
2429 * firmware. This function gets the buffer associated with the iocbs
2430 * and calls the event handler for the ring. This function handles both
2431 * qring buffers and hbq buffers.
2432 * When the function returns 1 the caller can free the iocb object otherwise
2433 * upper layer functions will free the iocb objects.
2436 lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2437 struct lpfc_iocbq *saveq)
2441 uint32_t Rctl, Type;
2443 struct lpfc_iocbq *iocbq;
2444 struct lpfc_dmabuf *dmzbuf;
2447 irsp = &(saveq->iocb);
2449 if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
2450 if (pring->lpfc_sli_rcv_async_status)
2451 pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
2453 lpfc_printf_log(phba,
2456 "0316 Ring %d handler: unexpected "
2457 "ASYNC_STATUS iocb received evt_code "
2460 irsp->un.asyncstat.evt_code);
2464 if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
2465 (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
2466 if (irsp->ulpBdeCount > 0) {
2467 dmzbuf = lpfc_sli_get_buff(phba, pring,
2468 irsp->un.ulpWord[3]);
2469 lpfc_in_buf_free(phba, dmzbuf);
2472 if (irsp->ulpBdeCount > 1) {
2473 dmzbuf = lpfc_sli_get_buff(phba, pring,
2474 irsp->unsli3.sli3Words[3]);
2475 lpfc_in_buf_free(phba, dmzbuf);
2478 if (irsp->ulpBdeCount > 2) {
2479 dmzbuf = lpfc_sli_get_buff(phba, pring,
2480 irsp->unsli3.sli3Words[7]);
2481 lpfc_in_buf_free(phba, dmzbuf);
2487 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
2488 if (irsp->ulpBdeCount != 0) {
2489 saveq->context2 = lpfc_sli_get_buff(phba, pring,
2490 irsp->un.ulpWord[3]);
2491 if (!saveq->context2)
2492 lpfc_printf_log(phba,
2495 "0341 Ring %d Cannot find buffer for "
2496 "an unsolicited iocb. tag 0x%x\n",
2498 irsp->un.ulpWord[3]);
2500 if (irsp->ulpBdeCount == 2) {
2501 saveq->context3 = lpfc_sli_get_buff(phba, pring,
2502 irsp->unsli3.sli3Words[7]);
2503 if (!saveq->context3)
2504 lpfc_printf_log(phba,
2507 "0342 Ring %d Cannot find buffer for an"
2508 " unsolicited iocb. tag 0x%x\n",
2510 irsp->unsli3.sli3Words[7]);
2512 list_for_each_entry(iocbq, &saveq->list, list) {
2513 irsp = &(iocbq->iocb);
2514 if (irsp->ulpBdeCount != 0) {
2515 iocbq->context2 = lpfc_sli_get_buff(phba, pring,
2516 irsp->un.ulpWord[3]);
2517 if (!iocbq->context2)
2518 lpfc_printf_log(phba,
2521 "0343 Ring %d Cannot find "
2522 "buffer for an unsolicited iocb"
2523 ". tag 0x%x\n", pring->ringno,
2524 irsp->un.ulpWord[3]);
2526 if (irsp->ulpBdeCount == 2) {
2527 iocbq->context3 = lpfc_sli_get_buff(phba, pring,
2528 irsp->unsli3.sli3Words[7]);
2529 if (!iocbq->context3)
2530 lpfc_printf_log(phba,
2533 "0344 Ring %d Cannot find "
2534 "buffer for an unsolicited "
2537 irsp->unsli3.sli3Words[7]);
2541 if (irsp->ulpBdeCount != 0 &&
2542 (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
2543 irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
2546 /* search continue save q for same XRI */
2547 list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
2548 if (iocbq->iocb.unsli3.rcvsli3.ox_id ==
2549 saveq->iocb.unsli3.rcvsli3.ox_id) {
2550 list_add_tail(&saveq->list, &iocbq->list);
2556 list_add_tail(&saveq->clist,
2557 &pring->iocb_continue_saveq);
2558 if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
2559 list_del_init(&iocbq->clist);
2561 irsp = &(saveq->iocb);
2565 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
2566 (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
2567 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
2568 Rctl = FC_RCTL_ELS_REQ;
2571 w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
2572 Rctl = w5p->hcsw.Rctl;
2573 Type = w5p->hcsw.Type;
2575 /* Firmware Workaround */
2576 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
2577 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
2578 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
2579 Rctl = FC_RCTL_ELS_REQ;
2581 w5p->hcsw.Rctl = Rctl;
2582 w5p->hcsw.Type = Type;
2586 if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
2587 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2588 "0313 Ring %d handler: unexpected Rctl x%x "
2589 "Type x%x received\n",
2590 pring->ringno, Rctl, Type);
2596 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
2597 * @phba: Pointer to HBA context object.
2598 * @pring: Pointer to driver SLI ring object.
2599 * @prspiocb: Pointer to response iocb object.
2601 * This function looks up the iocb_lookup table to get the command iocb
2602 * corresponding to the given response iocb using the iotag of the
2603 * response iocb. This function is called with the hbalock held.
2604 * This function returns the command iocb object if it finds the command
2605 * iocb else returns NULL.
2607 static struct lpfc_iocbq *
2608 lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
2609 struct lpfc_sli_ring *pring,
2610 struct lpfc_iocbq *prspiocb)
2612 struct lpfc_iocbq *cmd_iocb = NULL;
2615 iotag = prspiocb->iocb.ulpIoTag;
2617 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2618 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2619 list_del_init(&cmd_iocb->list);
2620 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
2621 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
2626 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2627 "0317 iotag x%x is out off "
2628 "range: max iotag x%x wd0 x%x\n",
2629 iotag, phba->sli.last_iotag,
2630 *(((uint32_t *) &prspiocb->iocb) + 7));
2635 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2636 * @phba: Pointer to HBA context object.
2637 * @pring: Pointer to driver SLI ring object.
2640 * This function looks up the iocb_lookup table to get the command iocb
2641 * corresponding to the given iotag. This function is called with the
2643 * This function returns the command iocb object if it finds the command
2644 * iocb else returns NULL.
2646 static struct lpfc_iocbq *
2647 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
2648 struct lpfc_sli_ring *pring, uint16_t iotag)
2650 struct lpfc_iocbq *cmd_iocb;
2652 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2653 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2654 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
2655 /* remove from txcmpl queue list */
2656 list_del_init(&cmd_iocb->list);
2657 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
2661 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2662 "0372 iotag x%x is out off range: max iotag (x%x)\n",
2663 iotag, phba->sli.last_iotag);
2668 * lpfc_sli_process_sol_iocb - process solicited iocb completion
2669 * @phba: Pointer to HBA context object.
2670 * @pring: Pointer to driver SLI ring object.
2671 * @saveq: Pointer to the response iocb to be processed.
2673 * This function is called by the ring event handler for non-fcp
2674 * rings when there is a new response iocb in the response ring.
2675 * The caller is not required to hold any locks. This function
2676 * gets the command iocb associated with the response iocb and
2677 * calls the completion handler for the command iocb. If there
2678 * is no completion handler, the function will free the resources
2679 * associated with command iocb. If the response iocb is for
2680 * an already aborted command iocb, the status of the completion
2681 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
2682 * This function always returns 1.
2685 lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2686 struct lpfc_iocbq *saveq)
2688 struct lpfc_iocbq *cmdiocbp;
2690 unsigned long iflag;
2692 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
2693 spin_lock_irqsave(&phba->hbalock, iflag);
2694 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
2695 spin_unlock_irqrestore(&phba->hbalock, iflag);
2698 if (cmdiocbp->iocb_cmpl) {
2700 * If an ELS command failed send an event to mgmt
2703 if (saveq->iocb.ulpStatus &&
2704 (pring->ringno == LPFC_ELS_RING) &&
2705 (cmdiocbp->iocb.ulpCommand ==
2706 CMD_ELS_REQUEST64_CR))
2707 lpfc_send_els_failure_event(phba,
2711 * Post all ELS completions to the worker thread.
2712 * All other are passed to the completion callback.
2714 if (pring->ringno == LPFC_ELS_RING) {
2715 if ((phba->sli_rev < LPFC_SLI_REV4) &&
2716 (cmdiocbp->iocb_flag &
2717 LPFC_DRIVER_ABORTED)) {
2718 spin_lock_irqsave(&phba->hbalock,
2720 cmdiocbp->iocb_flag &=
2721 ~LPFC_DRIVER_ABORTED;
2722 spin_unlock_irqrestore(&phba->hbalock,
2724 saveq->iocb.ulpStatus =
2725 IOSTAT_LOCAL_REJECT;
2726 saveq->iocb.un.ulpWord[4] =
2729 /* Firmware could still be in progress
2730 * of DMAing payload, so don't free data
2731 * buffer till after a hbeat.
2733 spin_lock_irqsave(&phba->hbalock,
2735 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
2736 spin_unlock_irqrestore(&phba->hbalock,
2739 if (phba->sli_rev == LPFC_SLI_REV4) {
2740 if (saveq->iocb_flag &
2741 LPFC_EXCHANGE_BUSY) {
2742 /* Set cmdiocb flag for the
2743 * exchange busy so sgl (xri)
2744 * will not be released until
2745 * the abort xri is received
2749 &phba->hbalock, iflag);
2750 cmdiocbp->iocb_flag |=
2752 spin_unlock_irqrestore(
2753 &phba->hbalock, iflag);
2755 if (cmdiocbp->iocb_flag &
2756 LPFC_DRIVER_ABORTED) {
2758 * Clear LPFC_DRIVER_ABORTED
2759 * bit in case it was driver
2763 &phba->hbalock, iflag);
2764 cmdiocbp->iocb_flag &=
2765 ~LPFC_DRIVER_ABORTED;
2766 spin_unlock_irqrestore(
2767 &phba->hbalock, iflag);
2768 cmdiocbp->iocb.ulpStatus =
2769 IOSTAT_LOCAL_REJECT;
2770 cmdiocbp->iocb.un.ulpWord[4] =
2771 IOERR_ABORT_REQUESTED;
2773 * For SLI4, irsiocb contains
2774 * NO_XRI in sli_xritag, it
2775 * shall not affect releasing
2776 * sgl (xri) process.
2778 saveq->iocb.ulpStatus =
2779 IOSTAT_LOCAL_REJECT;
2780 saveq->iocb.un.ulpWord[4] =
2783 &phba->hbalock, iflag);
2785 LPFC_DELAY_MEM_FREE;
2786 spin_unlock_irqrestore(
2787 &phba->hbalock, iflag);
2791 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
2793 lpfc_sli_release_iocbq(phba, cmdiocbp);
2796 * Unknown initiating command based on the response iotag.
2797 * This could be the case on the ELS ring because of
2800 if (pring->ringno != LPFC_ELS_RING) {
2802 * Ring <ringno> handler: unexpected completion IoTag
2805 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2806 "0322 Ring %d handler: "
2807 "unexpected completion IoTag x%x "
2808 "Data: x%x x%x x%x x%x\n",
2810 saveq->iocb.ulpIoTag,
2811 saveq->iocb.ulpStatus,
2812 saveq->iocb.un.ulpWord[4],
2813 saveq->iocb.ulpCommand,
2814 saveq->iocb.ulpContext);
2822 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
2823 * @phba: Pointer to HBA context object.
2824 * @pring: Pointer to driver SLI ring object.
2826 * This function is called from the iocb ring event handlers when
2827 * put pointer is ahead of the get pointer for a ring. This function signal
2828 * an error attention condition to the worker thread and the worker
2829 * thread will transition the HBA to offline state.
2832 lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
2834 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2836 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
2837 * rsp ring <portRspMax>
2839 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2840 "0312 Ring %d handler: portRspPut %d "
2841 "is bigger than rsp ring %d\n",
2842 pring->ringno, le32_to_cpu(pgp->rspPutInx),
2843 pring->sli.sli3.numRiocb);
2845 phba->link_state = LPFC_HBA_ERROR;
2848 * All error attention handlers are posted to
2851 phba->work_ha |= HA_ERATT;
2852 phba->work_hs = HS_FFER3;
2854 lpfc_worker_wake_up(phba);
2860 * lpfc_poll_eratt - Error attention polling timer timeout handler
2861 * @ptr: Pointer to address of HBA context object.
2863 * This function is invoked by the Error Attention polling timer when the
2864 * timer times out. It will check the SLI Error Attention register for
2865 * possible attention events. If so, it will post an Error Attention event
2866 * and wake up worker thread to process it. Otherwise, it will set up the
2867 * Error Attention polling timer for the next poll.
2869 void lpfc_poll_eratt(unsigned long ptr)
2871 struct lpfc_hba *phba;
2872 uint32_t eratt = 0, rem;
2873 uint64_t sli_intr, cnt;
2875 phba = (struct lpfc_hba *)ptr;
2877 /* Here we will also keep track of interrupts per sec of the hba */
2878 sli_intr = phba->sli.slistat.sli_intr;
2880 if (phba->sli.slistat.sli_prev_intr > sli_intr)
2881 cnt = (((uint64_t)(-1) - phba->sli.slistat.sli_prev_intr) +
2884 cnt = (sli_intr - phba->sli.slistat.sli_prev_intr);
2886 /* 64-bit integer division not supporte on 32-bit x86 - use do_div */
2887 rem = do_div(cnt, LPFC_ERATT_POLL_INTERVAL);
2888 phba->sli.slistat.sli_ips = cnt;
2890 phba->sli.slistat.sli_prev_intr = sli_intr;
2892 /* Check chip HA register for error event */
2893 eratt = lpfc_sli_check_eratt(phba);
2896 /* Tell the worker thread there is work to do */
2897 lpfc_worker_wake_up(phba);
2899 /* Restart the timer for next eratt poll */
2900 mod_timer(&phba->eratt_poll,
2902 msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
2908 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
2909 * @phba: Pointer to HBA context object.
2910 * @pring: Pointer to driver SLI ring object.
2911 * @mask: Host attention register mask for this ring.
2913 * This function is called from the interrupt context when there is a ring
2914 * event for the fcp ring. The caller does not hold any lock.
2915 * The function processes each response iocb in the response ring until it
2916 * finds an iocb with LE bit set and chains all the iocbs up to the iocb with
2917 * LE bit set. The function will call the completion handler of the command iocb
2918 * if the response iocb indicates a completion for a command iocb or it is
2919 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
2920 * function if this is an unsolicited iocb.
2921 * This routine presumes LPFC_FCP_RING handling and doesn't bother
2922 * to check it explicitly.
2925 lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
2926 struct lpfc_sli_ring *pring, uint32_t mask)
2928 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2929 IOCB_t *irsp = NULL;
2930 IOCB_t *entry = NULL;
2931 struct lpfc_iocbq *cmdiocbq = NULL;
2932 struct lpfc_iocbq rspiocbq;
2934 uint32_t portRspPut, portRspMax;
2936 lpfc_iocb_type type;
2937 unsigned long iflag;
2938 uint32_t rsp_cmpl = 0;
2940 spin_lock_irqsave(&phba->hbalock, iflag);
2941 pring->stats.iocb_event++;
2944 * The next available response entry should never exceed the maximum
2945 * entries. If it does, treat it as an adapter hardware error.
2947 portRspMax = pring->sli.sli3.numRiocb;
2948 portRspPut = le32_to_cpu(pgp->rspPutInx);
2949 if (unlikely(portRspPut >= portRspMax)) {
2950 lpfc_sli_rsp_pointers_error(phba, pring);
2951 spin_unlock_irqrestore(&phba->hbalock, iflag);
2954 if (phba->fcp_ring_in_use) {
2955 spin_unlock_irqrestore(&phba->hbalock, iflag);
2958 phba->fcp_ring_in_use = 1;
2961 while (pring->sli.sli3.rspidx != portRspPut) {
2963 * Fetch an entry off the ring and copy it into a local data
2964 * structure. The copy involves a byte-swap since the
2965 * network byte order and pci byte orders are different.
2967 entry = lpfc_resp_iocb(phba, pring);
2968 phba->last_completion_time = jiffies;
2970 if (++pring->sli.sli3.rspidx >= portRspMax)
2971 pring->sli.sli3.rspidx = 0;
2973 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
2974 (uint32_t *) &rspiocbq.iocb,
2975 phba->iocb_rsp_size);
2976 INIT_LIST_HEAD(&(rspiocbq.list));
2977 irsp = &rspiocbq.iocb;
2979 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
2980 pring->stats.iocb_rsp++;
2983 if (unlikely(irsp->ulpStatus)) {
2985 * If resource errors reported from HBA, reduce
2986 * queuedepths of the SCSI device.
2988 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
2989 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
2990 IOERR_NO_RESOURCES)) {
2991 spin_unlock_irqrestore(&phba->hbalock, iflag);
2992 phba->lpfc_rampdown_queue_depth(phba);
2993 spin_lock_irqsave(&phba->hbalock, iflag);
2996 /* Rsp ring <ringno> error: IOCB */
2997 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2998 "0336 Rsp Ring %d error: IOCB Data: "
2999 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
3001 irsp->un.ulpWord[0],
3002 irsp->un.ulpWord[1],
3003 irsp->un.ulpWord[2],
3004 irsp->un.ulpWord[3],
3005 irsp->un.ulpWord[4],
3006 irsp->un.ulpWord[5],
3007 *(uint32_t *)&irsp->un1,
3008 *((uint32_t *)&irsp->un1 + 1));
3012 case LPFC_ABORT_IOCB:
3015 * Idle exchange closed via ABTS from port. No iocb
3016 * resources need to be recovered.
3018 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
3019 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3020 "0333 IOCB cmd 0x%x"
3021 " processed. Skipping"
3027 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
3029 if (unlikely(!cmdiocbq))
3031 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED)
3032 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
3033 if (cmdiocbq->iocb_cmpl) {
3034 spin_unlock_irqrestore(&phba->hbalock, iflag);
3035 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
3037 spin_lock_irqsave(&phba->hbalock, iflag);
3040 case LPFC_UNSOL_IOCB:
3041 spin_unlock_irqrestore(&phba->hbalock, iflag);
3042 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
3043 spin_lock_irqsave(&phba->hbalock, iflag);
3046 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3047 char adaptermsg[LPFC_MAX_ADPTMSG];
3048 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3049 memcpy(&adaptermsg[0], (uint8_t *) irsp,
3051 dev_warn(&((phba->pcidev)->dev),
3053 phba->brd_no, adaptermsg);
3055 /* Unknown IOCB command */
3056 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3057 "0334 Unknown IOCB command "
3058 "Data: x%x, x%x x%x x%x x%x\n",
3059 type, irsp->ulpCommand,
3068 * The response IOCB has been processed. Update the ring
3069 * pointer in SLIM. If the port response put pointer has not
3070 * been updated, sync the pgp->rspPutInx and fetch the new port
3071 * response put pointer.
3073 writel(pring->sli.sli3.rspidx,
3074 &phba->host_gp[pring->ringno].rspGetInx);
3076 if (pring->sli.sli3.rspidx == portRspPut)
3077 portRspPut = le32_to_cpu(pgp->rspPutInx);
3080 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
3081 pring->stats.iocb_rsp_full++;
3082 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3083 writel(status, phba->CAregaddr);
3084 readl(phba->CAregaddr);
3086 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3087 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3088 pring->stats.iocb_cmd_empty++;
3090 /* Force update of the local copy of cmdGetInx */
3091 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3092 lpfc_sli_resume_iocb(phba, pring);
3094 if ((pring->lpfc_sli_cmd_available))
3095 (pring->lpfc_sli_cmd_available) (phba, pring);
3099 phba->fcp_ring_in_use = 0;
3100 spin_unlock_irqrestore(&phba->hbalock, iflag);
3105 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
3106 * @phba: Pointer to HBA context object.
3107 * @pring: Pointer to driver SLI ring object.
3108 * @rspiocbp: Pointer to driver response IOCB object.
3110 * This function is called from the worker thread when there is a slow-path
3111 * response IOCB to process. This function chains all the response iocbs until
3112 * seeing the iocb with the LE bit set. The function will call
3113 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
3114 * completion of a command iocb. The function will call the
3115 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
3116 * The function frees the resources or calls the completion handler if this
3117 * iocb is an abort completion. The function returns NULL when the response
3118 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
3119 * this function shall chain the iocb on to the iocb_continueq and return the
3120 * response iocb passed in.
3122 static struct lpfc_iocbq *
3123 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3124 struct lpfc_iocbq *rspiocbp)
3126 struct lpfc_iocbq *saveq;
3127 struct lpfc_iocbq *cmdiocbp;
3128 struct lpfc_iocbq *next_iocb;
3129 IOCB_t *irsp = NULL;
3130 uint32_t free_saveq;
3131 uint8_t iocb_cmd_type;
3132 lpfc_iocb_type type;
3133 unsigned long iflag;
3136 spin_lock_irqsave(&phba->hbalock, iflag);
3137 /* First add the response iocb to the countinueq list */
3138 list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
3139 pring->iocb_continueq_cnt++;
3141 /* Now, determine whether the list is completed for processing */
3142 irsp = &rspiocbp->iocb;
3145 * By default, the driver expects to free all resources
3146 * associated with this iocb completion.
3149 saveq = list_get_first(&pring->iocb_continueq,
3150 struct lpfc_iocbq, list);
3151 irsp = &(saveq->iocb);
3152 list_del_init(&pring->iocb_continueq);
3153 pring->iocb_continueq_cnt = 0;
3155 pring->stats.iocb_rsp++;
3158 * If resource errors reported from HBA, reduce
3159 * queuedepths of the SCSI device.
3161 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3162 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3163 IOERR_NO_RESOURCES)) {
3164 spin_unlock_irqrestore(&phba->hbalock, iflag);
3165 phba->lpfc_rampdown_queue_depth(phba);
3166 spin_lock_irqsave(&phba->hbalock, iflag);
3169 if (irsp->ulpStatus) {
3170 /* Rsp ring <ringno> error: IOCB */
3171 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3172 "0328 Rsp Ring %d error: "
3177 "x%x x%x x%x x%x\n",
3179 irsp->un.ulpWord[0],
3180 irsp->un.ulpWord[1],
3181 irsp->un.ulpWord[2],
3182 irsp->un.ulpWord[3],
3183 irsp->un.ulpWord[4],
3184 irsp->un.ulpWord[5],
3185 *(((uint32_t *) irsp) + 6),
3186 *(((uint32_t *) irsp) + 7),
3187 *(((uint32_t *) irsp) + 8),
3188 *(((uint32_t *) irsp) + 9),
3189 *(((uint32_t *) irsp) + 10),
3190 *(((uint32_t *) irsp) + 11),
3191 *(((uint32_t *) irsp) + 12),
3192 *(((uint32_t *) irsp) + 13),
3193 *(((uint32_t *) irsp) + 14),
3194 *(((uint32_t *) irsp) + 15));
3198 * Fetch the IOCB command type and call the correct completion
3199 * routine. Solicited and Unsolicited IOCBs on the ELS ring
3200 * get freed back to the lpfc_iocb_list by the discovery
3203 iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
3204 type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
3207 spin_unlock_irqrestore(&phba->hbalock, iflag);
3208 rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
3209 spin_lock_irqsave(&phba->hbalock, iflag);
3212 case LPFC_UNSOL_IOCB:
3213 spin_unlock_irqrestore(&phba->hbalock, iflag);
3214 rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
3215 spin_lock_irqsave(&phba->hbalock, iflag);
3220 case LPFC_ABORT_IOCB:
3222 if (irsp->ulpCommand != CMD_XRI_ABORTED_CX)
3223 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
3226 /* Call the specified completion routine */
3227 if (cmdiocbp->iocb_cmpl) {
3228 spin_unlock_irqrestore(&phba->hbalock,
3230 (cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
3232 spin_lock_irqsave(&phba->hbalock,
3235 __lpfc_sli_release_iocbq(phba,
3240 case LPFC_UNKNOWN_IOCB:
3241 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3242 char adaptermsg[LPFC_MAX_ADPTMSG];
3243 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3244 memcpy(&adaptermsg[0], (uint8_t *)irsp,
3246 dev_warn(&((phba->pcidev)->dev),
3248 phba->brd_no, adaptermsg);
3250 /* Unknown IOCB command */
3251 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3252 "0335 Unknown IOCB "
3253 "command Data: x%x "
3264 list_for_each_entry_safe(rspiocbp, next_iocb,
3265 &saveq->list, list) {
3266 list_del_init(&rspiocbp->list);
3267 __lpfc_sli_release_iocbq(phba, rspiocbp);
3269 __lpfc_sli_release_iocbq(phba, saveq);
3273 spin_unlock_irqrestore(&phba->hbalock, iflag);
3278 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
3279 * @phba: Pointer to HBA context object.
3280 * @pring: Pointer to driver SLI ring object.
3281 * @mask: Host attention register mask for this ring.
3283 * This routine wraps the actual slow_ring event process routine from the
3284 * API jump table function pointer from the lpfc_hba struct.
3287 lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
3288 struct lpfc_sli_ring *pring, uint32_t mask)
3290 phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
3294 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
3295 * @phba: Pointer to HBA context object.
3296 * @pring: Pointer to driver SLI ring object.
3297 * @mask: Host attention register mask for this ring.
3299 * This function is called from the worker thread when there is a ring event
3300 * for non-fcp rings. The caller does not hold any lock. The function will
3301 * remove each response iocb in the response ring and calls the handle
3302 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3305 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
3306 struct lpfc_sli_ring *pring, uint32_t mask)
3308 struct lpfc_pgp *pgp;
3310 IOCB_t *irsp = NULL;
3311 struct lpfc_iocbq *rspiocbp = NULL;
3312 uint32_t portRspPut, portRspMax;
3313 unsigned long iflag;
3316 pgp = &phba->port_gp[pring->ringno];
3317 spin_lock_irqsave(&phba->hbalock, iflag);
3318 pring->stats.iocb_event++;
3321 * The next available response entry should never exceed the maximum
3322 * entries. If it does, treat it as an adapter hardware error.
3324 portRspMax = pring->sli.sli3.numRiocb;
3325 portRspPut = le32_to_cpu(pgp->rspPutInx);
3326 if (portRspPut >= portRspMax) {
3328 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
3329 * rsp ring <portRspMax>
3331 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3332 "0303 Ring %d handler: portRspPut %d "
3333 "is bigger than rsp ring %d\n",
3334 pring->ringno, portRspPut, portRspMax);
3336 phba->link_state = LPFC_HBA_ERROR;
3337 spin_unlock_irqrestore(&phba->hbalock, iflag);
3339 phba->work_hs = HS_FFER3;
3340 lpfc_handle_eratt(phba);
3346 while (pring->sli.sli3.rspidx != portRspPut) {
3348 * Build a completion list and call the appropriate handler.
3349 * The process is to get the next available response iocb, get
3350 * a free iocb from the list, copy the response data into the
3351 * free iocb, insert to the continuation list, and update the
3352 * next response index to slim. This process makes response
3353 * iocb's in the ring available to DMA as fast as possible but
3354 * pays a penalty for a copy operation. Since the iocb is
3355 * only 32 bytes, this penalty is considered small relative to
3356 * the PCI reads for register values and a slim write. When
3357 * the ulpLe field is set, the entire Command has been
3360 entry = lpfc_resp_iocb(phba, pring);
3362 phba->last_completion_time = jiffies;
3363 rspiocbp = __lpfc_sli_get_iocbq(phba);
3364 if (rspiocbp == NULL) {
3365 printk(KERN_ERR "%s: out of buffers! Failing "
3366 "completion.\n", __func__);
3370 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
3371 phba->iocb_rsp_size);
3372 irsp = &rspiocbp->iocb;
3374 if (++pring->sli.sli3.rspidx >= portRspMax)
3375 pring->sli.sli3.rspidx = 0;
3377 if (pring->ringno == LPFC_ELS_RING) {
3378 lpfc_debugfs_slow_ring_trc(phba,
3379 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
3380 *(((uint32_t *) irsp) + 4),
3381 *(((uint32_t *) irsp) + 6),
3382 *(((uint32_t *) irsp) + 7));
3385 writel(pring->sli.sli3.rspidx,
3386 &phba->host_gp[pring->ringno].rspGetInx);
3388 spin_unlock_irqrestore(&phba->hbalock, iflag);
3389 /* Handle the response IOCB */
3390 rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
3391 spin_lock_irqsave(&phba->hbalock, iflag);
3394 * If the port response put pointer has not been updated, sync
3395 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
3396 * response put pointer.
3398 if (pring->sli.sli3.rspidx == portRspPut) {
3399 portRspPut = le32_to_cpu(pgp->rspPutInx);
3401 } /* while (pring->sli.sli3.rspidx != portRspPut) */
3403 if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
3404 /* At least one response entry has been freed */
3405 pring->stats.iocb_rsp_full++;
3406 /* SET RxRE_RSP in Chip Att register */
3407 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3408 writel(status, phba->CAregaddr);
3409 readl(phba->CAregaddr); /* flush */
3411 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3412 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3413 pring->stats.iocb_cmd_empty++;
3415 /* Force update of the local copy of cmdGetInx */
3416 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3417 lpfc_sli_resume_iocb(phba, pring);
3419 if ((pring->lpfc_sli_cmd_available))
3420 (pring->lpfc_sli_cmd_available) (phba, pring);
3424 spin_unlock_irqrestore(&phba->hbalock, iflag);
3429 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
3430 * @phba: Pointer to HBA context object.
3431 * @pring: Pointer to driver SLI ring object.
3432 * @mask: Host attention register mask for this ring.
3434 * This function is called from the worker thread when there is a pending
3435 * ELS response iocb on the driver internal slow-path response iocb worker
3436 * queue. The caller does not hold any lock. The function will remove each
3437 * response iocb from the response worker queue and calls the handle
3438 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3441 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
3442 struct lpfc_sli_ring *pring, uint32_t mask)
3444 struct lpfc_iocbq *irspiocbq;
3445 struct hbq_dmabuf *dmabuf;
3446 struct lpfc_cq_event *cq_event;
3447 unsigned long iflag;
3449 spin_lock_irqsave(&phba->hbalock, iflag);
3450 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
3451 spin_unlock_irqrestore(&phba->hbalock, iflag);
3452 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
3453 /* Get the response iocb from the head of work queue */
3454 spin_lock_irqsave(&phba->hbalock, iflag);
3455 list_remove_head(&phba->sli4_hba.sp_queue_event,
3456 cq_event, struct lpfc_cq_event, list);
3457 spin_unlock_irqrestore(&phba->hbalock, iflag);
3459 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
3460 case CQE_CODE_COMPL_WQE:
3461 irspiocbq = container_of(cq_event, struct lpfc_iocbq,
3463 /* Translate ELS WCQE to response IOCBQ */
3464 irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba,
3467 lpfc_sli_sp_handle_rspiocb(phba, pring,
3470 case CQE_CODE_RECEIVE:
3471 case CQE_CODE_RECEIVE_V1:
3472 dmabuf = container_of(cq_event, struct hbq_dmabuf,
3474 lpfc_sli4_handle_received_buffer(phba, dmabuf);
3483 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
3484 * @phba: Pointer to HBA context object.
3485 * @pring: Pointer to driver SLI ring object.
3487 * This function aborts all iocbs in the given ring and frees all the iocb
3488 * objects in txq. This function issues an abort iocb for all the iocb commands
3489 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3490 * the return of this function. The caller is not required to hold any locks.
3493 lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3495 LIST_HEAD(completions);
3496 struct lpfc_iocbq *iocb, *next_iocb;
3498 if (pring->ringno == LPFC_ELS_RING) {
3499 lpfc_fabric_abort_hba(phba);
3502 /* Error everything on txq and txcmplq
3505 spin_lock_irq(&phba->hbalock);
3506 list_splice_init(&pring->txq, &completions);
3508 /* Next issue ABTS for everything on the txcmplq */
3509 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3510 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3512 spin_unlock_irq(&phba->hbalock);
3514 /* Cancel all the IOCBs from the completions list */
3515 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3520 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
3521 * @phba: Pointer to HBA context object.
3523 * This function flushes all iocbs in the fcp ring and frees all the iocb
3524 * objects in txq and txcmplq. This function will not issue abort iocbs
3525 * for all the iocb commands in txcmplq, they will just be returned with
3526 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3527 * slot has been permanently disabled.
3530 lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba)
3534 struct lpfc_sli *psli = &phba->sli;
3535 struct lpfc_sli_ring *pring;
3537 /* Currently, only one fcp ring */
3538 pring = &psli->ring[psli->fcp_ring];
3540 spin_lock_irq(&phba->hbalock);
3541 /* Retrieve everything on txq */
3542 list_splice_init(&pring->txq, &txq);
3544 /* Retrieve everything on the txcmplq */
3545 list_splice_init(&pring->txcmplq, &txcmplq);
3547 /* Indicate the I/O queues are flushed */
3548 phba->hba_flag |= HBA_FCP_IOQ_FLUSH;
3549 spin_unlock_irq(&phba->hbalock);
3552 lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
3555 /* Flush the txcmpq */
3556 lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
3561 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
3562 * @phba: Pointer to HBA context object.
3563 * @mask: Bit mask to be checked.
3565 * This function reads the host status register and compares
3566 * with the provided bit mask to check if HBA completed
3567 * the restart. This function will wait in a loop for the
3568 * HBA to complete restart. If the HBA does not restart within
3569 * 15 iterations, the function will reset the HBA again. The
3570 * function returns 1 when HBA fail to restart otherwise returns
3574 lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
3580 /* Read the HBA Host Status Register */
3581 if (lpfc_readl(phba->HSregaddr, &status))
3585 * Check status register every 100ms for 5 retries, then every
3586 * 500ms for 5, then every 2.5 sec for 5, then reset board and
3587 * every 2.5 sec for 4.
3588 * Break our of the loop if errors occurred during init.
3590 while (((status & mask) != mask) &&
3591 !(status & HS_FFERM) &&
3603 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3604 lpfc_sli_brdrestart(phba);
3606 /* Read the HBA Host Status Register */
3607 if (lpfc_readl(phba->HSregaddr, &status)) {
3613 /* Check to see if any errors occurred during init */
3614 if ((status & HS_FFERM) || (i >= 20)) {
3615 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3616 "2751 Adapter failed to restart, "
3617 "status reg x%x, FW Data: A8 x%x AC x%x\n",
3619 readl(phba->MBslimaddr + 0xa8),
3620 readl(phba->MBslimaddr + 0xac));
3621 phba->link_state = LPFC_HBA_ERROR;
3629 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3630 * @phba: Pointer to HBA context object.
3631 * @mask: Bit mask to be checked.
3633 * This function checks the host status register to check if HBA is
3634 * ready. This function will wait in a loop for the HBA to be ready
3635 * If the HBA is not ready , the function will will reset the HBA PCI
3636 * function again. The function returns 1 when HBA fail to be ready
3637 * otherwise returns zero.
3640 lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
3645 /* Read the HBA Host Status Register */
3646 status = lpfc_sli4_post_status_check(phba);
3649 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3650 lpfc_sli_brdrestart(phba);
3651 status = lpfc_sli4_post_status_check(phba);
3654 /* Check to see if any errors occurred during init */
3656 phba->link_state = LPFC_HBA_ERROR;
3659 phba->sli4_hba.intr_enable = 0;
3665 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3666 * @phba: Pointer to HBA context object.
3667 * @mask: Bit mask to be checked.
3669 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3670 * from the API jump table function pointer from the lpfc_hba struct.
3673 lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
3675 return phba->lpfc_sli_brdready(phba, mask);
3678 #define BARRIER_TEST_PATTERN (0xdeadbeef)
3681 * lpfc_reset_barrier - Make HBA ready for HBA reset
3682 * @phba: Pointer to HBA context object.
3684 * This function is called before resetting an HBA. This function is called
3685 * with hbalock held and requests HBA to quiesce DMAs before a reset.
3687 void lpfc_reset_barrier(struct lpfc_hba *phba)
3689 uint32_t __iomem *resp_buf;
3690 uint32_t __iomem *mbox_buf;
3691 volatile uint32_t mbox;
3692 uint32_t hc_copy, ha_copy, resp_data;
3696 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
3697 if (hdrtype != 0x80 ||
3698 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
3699 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
3703 * Tell the other part of the chip to suspend temporarily all
3706 resp_buf = phba->MBslimaddr;
3708 /* Disable the error attention */
3709 if (lpfc_readl(phba->HCregaddr, &hc_copy))
3711 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
3712 readl(phba->HCregaddr); /* flush */
3713 phba->link_flag |= LS_IGNORE_ERATT;
3715 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3717 if (ha_copy & HA_ERATT) {
3718 /* Clear Chip error bit */
3719 writel(HA_ERATT, phba->HAregaddr);
3720 phba->pport->stopped = 1;
3724 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
3725 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
3727 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
3728 mbox_buf = phba->MBslimaddr;
3729 writel(mbox, mbox_buf);
3731 for (i = 0; i < 50; i++) {
3732 if (lpfc_readl((resp_buf + 1), &resp_data))
3734 if (resp_data != ~(BARRIER_TEST_PATTERN))
3740 if (lpfc_readl((resp_buf + 1), &resp_data))
3742 if (resp_data != ~(BARRIER_TEST_PATTERN)) {
3743 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
3744 phba->pport->stopped)
3750 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
3752 for (i = 0; i < 500; i++) {
3753 if (lpfc_readl(resp_buf, &resp_data))
3755 if (resp_data != mbox)
3764 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3766 if (!(ha_copy & HA_ERATT))
3772 if (readl(phba->HAregaddr) & HA_ERATT) {
3773 writel(HA_ERATT, phba->HAregaddr);
3774 phba->pport->stopped = 1;
3778 phba->link_flag &= ~LS_IGNORE_ERATT;
3779 writel(hc_copy, phba->HCregaddr);
3780 readl(phba->HCregaddr); /* flush */
3784 * lpfc_sli_brdkill - Issue a kill_board mailbox command
3785 * @phba: Pointer to HBA context object.
3787 * This function issues a kill_board mailbox command and waits for
3788 * the error attention interrupt. This function is called for stopping
3789 * the firmware processing. The caller is not required to hold any
3790 * locks. This function calls lpfc_hba_down_post function to free
3791 * any pending commands after the kill. The function will return 1 when it
3792 * fails to kill the board else will return 0.
3795 lpfc_sli_brdkill(struct lpfc_hba *phba)
3797 struct lpfc_sli *psli;
3807 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3808 "0329 Kill HBA Data: x%x x%x\n",
3809 phba->pport->port_state, psli->sli_flag);
3811 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3815 /* Disable the error attention */
3816 spin_lock_irq(&phba->hbalock);
3817 if (lpfc_readl(phba->HCregaddr, &status)) {
3818 spin_unlock_irq(&phba->hbalock);
3819 mempool_free(pmb, phba->mbox_mem_pool);
3822 status &= ~HC_ERINT_ENA;
3823 writel(status, phba->HCregaddr);
3824 readl(phba->HCregaddr); /* flush */
3825 phba->link_flag |= LS_IGNORE_ERATT;
3826 spin_unlock_irq(&phba->hbalock);
3828 lpfc_kill_board(phba, pmb);
3829 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3830 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3832 if (retval != MBX_SUCCESS) {
3833 if (retval != MBX_BUSY)
3834 mempool_free(pmb, phba->mbox_mem_pool);
3835 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3836 "2752 KILL_BOARD command failed retval %d\n",
3838 spin_lock_irq(&phba->hbalock);
3839 phba->link_flag &= ~LS_IGNORE_ERATT;
3840 spin_unlock_irq(&phba->hbalock);
3844 spin_lock_irq(&phba->hbalock);
3845 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
3846 spin_unlock_irq(&phba->hbalock);
3848 mempool_free(pmb, phba->mbox_mem_pool);
3850 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
3851 * attention every 100ms for 3 seconds. If we don't get ERATT after
3852 * 3 seconds we still set HBA_ERROR state because the status of the
3853 * board is now undefined.
3855 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3857 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
3859 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3863 del_timer_sync(&psli->mbox_tmo);
3864 if (ha_copy & HA_ERATT) {
3865 writel(HA_ERATT, phba->HAregaddr);
3866 phba->pport->stopped = 1;
3868 spin_lock_irq(&phba->hbalock);
3869 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
3870 psli->mbox_active = NULL;
3871 phba->link_flag &= ~LS_IGNORE_ERATT;
3872 spin_unlock_irq(&phba->hbalock);
3874 lpfc_hba_down_post(phba);
3875 phba->link_state = LPFC_HBA_ERROR;
3877 return ha_copy & HA_ERATT ? 0 : 1;
3881 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
3882 * @phba: Pointer to HBA context object.
3884 * This function resets the HBA by writing HC_INITFF to the control
3885 * register. After the HBA resets, this function resets all the iocb ring
3886 * indices. This function disables PCI layer parity checking during
3888 * This function returns 0 always.
3889 * The caller is not required to hold any locks.
3892 lpfc_sli_brdreset(struct lpfc_hba *phba)
3894 struct lpfc_sli *psli;
3895 struct lpfc_sli_ring *pring;
3902 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3903 "0325 Reset HBA Data: x%x x%x\n",
3904 phba->pport->port_state, psli->sli_flag);
3906 /* perform board reset */
3907 phba->fc_eventTag = 0;
3908 phba->link_events = 0;
3909 phba->pport->fc_myDID = 0;
3910 phba->pport->fc_prevDID = 0;
3912 /* Turn off parity checking and serr during the physical reset */
3913 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
3914 pci_write_config_word(phba->pcidev, PCI_COMMAND,
3916 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
3918 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
3920 /* Now toggle INITFF bit in the Host Control Register */
3921 writel(HC_INITFF, phba->HCregaddr);
3923 readl(phba->HCregaddr); /* flush */
3924 writel(0, phba->HCregaddr);
3925 readl(phba->HCregaddr); /* flush */
3927 /* Restore PCI cmd register */
3928 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
3930 /* Initialize relevant SLI info */
3931 for (i = 0; i < psli->num_rings; i++) {
3932 pring = &psli->ring[i];
3934 pring->sli.sli3.rspidx = 0;
3935 pring->sli.sli3.next_cmdidx = 0;
3936 pring->sli.sli3.local_getidx = 0;
3937 pring->sli.sli3.cmdidx = 0;
3938 pring->missbufcnt = 0;
3941 phba->link_state = LPFC_WARM_START;
3946 * lpfc_sli4_brdreset - Reset a sli-4 HBA
3947 * @phba: Pointer to HBA context object.
3949 * This function resets a SLI4 HBA. This function disables PCI layer parity
3950 * checking during resets the device. The caller is not required to hold
3953 * This function returns 0 always.
3956 lpfc_sli4_brdreset(struct lpfc_hba *phba)
3958 struct lpfc_sli *psli = &phba->sli;
3963 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3964 "0295 Reset HBA Data: x%x x%x\n",
3965 phba->pport->port_state, psli->sli_flag);
3967 /* perform board reset */
3968 phba->fc_eventTag = 0;
3969 phba->link_events = 0;
3970 phba->pport->fc_myDID = 0;
3971 phba->pport->fc_prevDID = 0;
3973 spin_lock_irq(&phba->hbalock);
3974 psli->sli_flag &= ~(LPFC_PROCESS_LA);
3975 phba->fcf.fcf_flag = 0;
3976 spin_unlock_irq(&phba->hbalock);
3978 /* Now physically reset the device */
3979 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3980 "0389 Performing PCI function reset!\n");
3982 /* Turn off parity checking and serr during the physical reset */
3983 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
3984 pci_write_config_word(phba->pcidev, PCI_COMMAND, (cfg_value &
3985 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
3987 /* Perform FCoE PCI function reset before freeing queue memory */
3988 rc = lpfc_pci_function_reset(phba);
3989 lpfc_sli4_queue_destroy(phba);
3991 /* Restore PCI cmd register */
3992 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
3998 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
3999 * @phba: Pointer to HBA context object.
4001 * This function is called in the SLI initialization code path to
4002 * restart the HBA. The caller is not required to hold any lock.
4003 * This function writes MBX_RESTART mailbox command to the SLIM and
4004 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
4005 * function to free any pending commands. The function enables
4006 * POST only during the first initialization. The function returns zero.
4007 * The function does not guarantee completion of MBX_RESTART mailbox
4008 * command before the return of this function.
4011 lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
4014 struct lpfc_sli *psli;
4015 volatile uint32_t word0;
4016 void __iomem *to_slim;
4017 uint32_t hba_aer_enabled;
4019 spin_lock_irq(&phba->hbalock);
4021 /* Take PCIe device Advanced Error Reporting (AER) state */
4022 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4027 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4028 "0337 Restart HBA Data: x%x x%x\n",
4029 phba->pport->port_state, psli->sli_flag);
4032 mb = (MAILBOX_t *) &word0;
4033 mb->mbxCommand = MBX_RESTART;
4036 lpfc_reset_barrier(phba);
4038 to_slim = phba->MBslimaddr;
4039 writel(*(uint32_t *) mb, to_slim);
4040 readl(to_slim); /* flush */
4042 /* Only skip post after fc_ffinit is completed */
4043 if (phba->pport->port_state)
4044 word0 = 1; /* This is really setting up word1 */
4046 word0 = 0; /* This is really setting up word1 */
4047 to_slim = phba->MBslimaddr + sizeof (uint32_t);
4048 writel(*(uint32_t *) mb, to_slim);
4049 readl(to_slim); /* flush */
4051 lpfc_sli_brdreset(phba);
4052 phba->pport->stopped = 0;
4053 phba->link_state = LPFC_INIT_START;
4055 spin_unlock_irq(&phba->hbalock);
4057 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4058 psli->stats_start = get_seconds();
4060 /* Give the INITFF and Post time to settle. */
4063 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4064 if (hba_aer_enabled)
4065 pci_disable_pcie_error_reporting(phba->pcidev);
4067 lpfc_hba_down_post(phba);
4073 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
4074 * @phba: Pointer to HBA context object.
4076 * This function is called in the SLI initialization code path to restart
4077 * a SLI4 HBA. The caller is not required to hold any lock.
4078 * At the end of the function, it calls lpfc_hba_down_post function to
4079 * free any pending commands.
4082 lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
4084 struct lpfc_sli *psli = &phba->sli;
4085 uint32_t hba_aer_enabled;
4089 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4090 "0296 Restart HBA Data: x%x x%x\n",
4091 phba->pport->port_state, psli->sli_flag);
4093 /* Take PCIe device Advanced Error Reporting (AER) state */
4094 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4096 rc = lpfc_sli4_brdreset(phba);
4098 spin_lock_irq(&phba->hbalock);
4099 phba->pport->stopped = 0;
4100 phba->link_state = LPFC_INIT_START;
4102 spin_unlock_irq(&phba->hbalock);
4104 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4105 psli->stats_start = get_seconds();
4107 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4108 if (hba_aer_enabled)
4109 pci_disable_pcie_error_reporting(phba->pcidev);
4111 lpfc_hba_down_post(phba);
4117 * lpfc_sli_brdrestart - Wrapper func for restarting hba
4118 * @phba: Pointer to HBA context object.
4120 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
4121 * API jump table function pointer from the lpfc_hba struct.
4124 lpfc_sli_brdrestart(struct lpfc_hba *phba)
4126 return phba->lpfc_sli_brdrestart(phba);
4130 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
4131 * @phba: Pointer to HBA context object.
4133 * This function is called after a HBA restart to wait for successful
4134 * restart of the HBA. Successful restart of the HBA is indicated by
4135 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
4136 * iteration, the function will restart the HBA again. The function returns
4137 * zero if HBA successfully restarted else returns negative error code.
4140 lpfc_sli_chipset_init(struct lpfc_hba *phba)
4142 uint32_t status, i = 0;
4144 /* Read the HBA Host Status Register */
4145 if (lpfc_readl(phba->HSregaddr, &status))
4148 /* Check status register to see what current state is */
4150 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
4152 /* Check every 10ms for 10 retries, then every 100ms for 90
4153 * retries, then every 1 sec for 50 retires for a total of
4154 * ~60 seconds before reset the board again and check every
4155 * 1 sec for 50 retries. The up to 60 seconds before the
4156 * board ready is required by the Falcon FIPS zeroization
4157 * complete, and any reset the board in between shall cause
4158 * restart of zeroization, further delay the board ready.
4161 /* Adapter failed to init, timeout, status reg
4163 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4164 "0436 Adapter failed to init, "
4165 "timeout, status reg x%x, "
4166 "FW Data: A8 x%x AC x%x\n", status,
4167 readl(phba->MBslimaddr + 0xa8),
4168 readl(phba->MBslimaddr + 0xac));
4169 phba->link_state = LPFC_HBA_ERROR;
4173 /* Check to see if any errors occurred during init */
4174 if (status & HS_FFERM) {
4175 /* ERROR: During chipset initialization */
4176 /* Adapter failed to init, chipset, status reg
4178 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4179 "0437 Adapter failed to init, "
4180 "chipset, status reg x%x, "
4181 "FW Data: A8 x%x AC x%x\n", status,
4182 readl(phba->MBslimaddr + 0xa8),
4183 readl(phba->MBslimaddr + 0xac));
4184 phba->link_state = LPFC_HBA_ERROR;
4197 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4198 lpfc_sli_brdrestart(phba);
4200 /* Read the HBA Host Status Register */
4201 if (lpfc_readl(phba->HSregaddr, &status))
4205 /* Check to see if any errors occurred during init */
4206 if (status & HS_FFERM) {
4207 /* ERROR: During chipset initialization */
4208 /* Adapter failed to init, chipset, status reg <status> */
4209 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4210 "0438 Adapter failed to init, chipset, "
4212 "FW Data: A8 x%x AC x%x\n", status,
4213 readl(phba->MBslimaddr + 0xa8),
4214 readl(phba->MBslimaddr + 0xac));
4215 phba->link_state = LPFC_HBA_ERROR;
4219 /* Clear all interrupt enable conditions */
4220 writel(0, phba->HCregaddr);
4221 readl(phba->HCregaddr); /* flush */
4223 /* setup host attn register */
4224 writel(0xffffffff, phba->HAregaddr);
4225 readl(phba->HAregaddr); /* flush */
4230 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
4232 * This function calculates and returns the number of HBQs required to be
4236 lpfc_sli_hbq_count(void)
4238 return ARRAY_SIZE(lpfc_hbq_defs);
4242 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
4244 * This function adds the number of hbq entries in every HBQ to get
4245 * the total number of hbq entries required for the HBA and returns
4249 lpfc_sli_hbq_entry_count(void)
4251 int hbq_count = lpfc_sli_hbq_count();
4255 for (i = 0; i < hbq_count; ++i)
4256 count += lpfc_hbq_defs[i]->entry_count;
4261 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
4263 * This function calculates amount of memory required for all hbq entries
4264 * to be configured and returns the total memory required.
4267 lpfc_sli_hbq_size(void)
4269 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
4273 * lpfc_sli_hbq_setup - configure and initialize HBQs
4274 * @phba: Pointer to HBA context object.
4276 * This function is called during the SLI initialization to configure
4277 * all the HBQs and post buffers to the HBQ. The caller is not
4278 * required to hold any locks. This function will return zero if successful
4279 * else it will return negative error code.
4282 lpfc_sli_hbq_setup(struct lpfc_hba *phba)
4284 int hbq_count = lpfc_sli_hbq_count();
4288 uint32_t hbq_entry_index;
4290 /* Get a Mailbox buffer to setup mailbox
4291 * commands for HBA initialization
4293 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4300 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
4301 phba->link_state = LPFC_INIT_MBX_CMDS;
4302 phba->hbq_in_use = 1;
4304 hbq_entry_index = 0;
4305 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
4306 phba->hbqs[hbqno].next_hbqPutIdx = 0;
4307 phba->hbqs[hbqno].hbqPutIdx = 0;
4308 phba->hbqs[hbqno].local_hbqGetIdx = 0;
4309 phba->hbqs[hbqno].entry_count =
4310 lpfc_hbq_defs[hbqno]->entry_count;
4311 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
4312 hbq_entry_index, pmb);
4313 hbq_entry_index += phba->hbqs[hbqno].entry_count;
4315 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
4316 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
4317 mbxStatus <status>, ring <num> */
4319 lpfc_printf_log(phba, KERN_ERR,
4320 LOG_SLI | LOG_VPORT,
4321 "1805 Adapter failed to init. "
4322 "Data: x%x x%x x%x\n",
4324 pmbox->mbxStatus, hbqno);
4326 phba->link_state = LPFC_HBA_ERROR;
4327 mempool_free(pmb, phba->mbox_mem_pool);
4331 phba->hbq_count = hbq_count;
4333 mempool_free(pmb, phba->mbox_mem_pool);
4335 /* Initially populate or replenish the HBQs */
4336 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
4337 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
4342 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
4343 * @phba: Pointer to HBA context object.
4345 * This function is called during the SLI initialization to configure
4346 * all the HBQs and post buffers to the HBQ. The caller is not
4347 * required to hold any locks. This function will return zero if successful
4348 * else it will return negative error code.
4351 lpfc_sli4_rb_setup(struct lpfc_hba *phba)
4353 phba->hbq_in_use = 1;
4354 phba->hbqs[0].entry_count = lpfc_hbq_defs[0]->entry_count;
4355 phba->hbq_count = 1;
4356 /* Initially populate or replenish the HBQs */
4357 lpfc_sli_hbqbuf_init_hbqs(phba, 0);
4362 * lpfc_sli_config_port - Issue config port mailbox command
4363 * @phba: Pointer to HBA context object.
4364 * @sli_mode: sli mode - 2/3
4366 * This function is called by the sli intialization code path
4367 * to issue config_port mailbox command. This function restarts the
4368 * HBA firmware and issues a config_port mailbox command to configure
4369 * the SLI interface in the sli mode specified by sli_mode
4370 * variable. The caller is not required to hold any locks.
4371 * The function returns 0 if successful, else returns negative error
4375 lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
4378 uint32_t resetcount = 0, rc = 0, done = 0;
4380 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4382 phba->link_state = LPFC_HBA_ERROR;
4386 phba->sli_rev = sli_mode;
4387 while (resetcount < 2 && !done) {
4388 spin_lock_irq(&phba->hbalock);
4389 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
4390 spin_unlock_irq(&phba->hbalock);
4391 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4392 lpfc_sli_brdrestart(phba);
4393 rc = lpfc_sli_chipset_init(phba);
4397 spin_lock_irq(&phba->hbalock);
4398 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4399 spin_unlock_irq(&phba->hbalock);
4402 /* Call pre CONFIG_PORT mailbox command initialization. A
4403 * value of 0 means the call was successful. Any other
4404 * nonzero value is a failure, but if ERESTART is returned,
4405 * the driver may reset the HBA and try again.
4407 rc = lpfc_config_port_prep(phba);
4408 if (rc == -ERESTART) {
4409 phba->link_state = LPFC_LINK_UNKNOWN;
4414 phba->link_state = LPFC_INIT_MBX_CMDS;
4415 lpfc_config_port(phba, pmb);
4416 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
4417 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
4418 LPFC_SLI3_HBQ_ENABLED |
4419 LPFC_SLI3_CRP_ENABLED |
4420 LPFC_SLI3_BG_ENABLED |
4421 LPFC_SLI3_DSS_ENABLED);
4422 if (rc != MBX_SUCCESS) {
4423 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4424 "0442 Adapter failed to init, mbxCmd x%x "
4425 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
4426 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
4427 spin_lock_irq(&phba->hbalock);
4428 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
4429 spin_unlock_irq(&phba->hbalock);
4432 /* Allow asynchronous mailbox command to go through */
4433 spin_lock_irq(&phba->hbalock);
4434 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
4435 spin_unlock_irq(&phba->hbalock);
4438 if ((pmb->u.mb.un.varCfgPort.casabt == 1) &&
4439 (pmb->u.mb.un.varCfgPort.gasabt == 0))
4440 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4441 "3110 Port did not grant ASABT\n");
4446 goto do_prep_failed;
4448 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
4449 if (!pmb->u.mb.un.varCfgPort.cMA) {
4451 goto do_prep_failed;
4453 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
4454 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
4455 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
4456 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
4457 phba->max_vpi : phba->max_vports;
4461 phba->fips_level = 0;
4462 phba->fips_spec_rev = 0;
4463 if (pmb->u.mb.un.varCfgPort.gdss) {
4464 phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
4465 phba->fips_level = pmb->u.mb.un.varCfgPort.fips_level;
4466 phba->fips_spec_rev = pmb->u.mb.un.varCfgPort.fips_rev;
4467 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4468 "2850 Security Crypto Active. FIPS x%d "
4470 phba->fips_level, phba->fips_spec_rev);
4472 if (pmb->u.mb.un.varCfgPort.sec_err) {
4473 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4474 "2856 Config Port Security Crypto "
4476 pmb->u.mb.un.varCfgPort.sec_err);
4478 if (pmb->u.mb.un.varCfgPort.gerbm)
4479 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
4480 if (pmb->u.mb.un.varCfgPort.gcrp)
4481 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
4483 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
4484 phba->port_gp = phba->mbox->us.s3_pgp.port;
4486 if (phba->cfg_enable_bg) {
4487 if (pmb->u.mb.un.varCfgPort.gbg)
4488 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
4490 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4491 "0443 Adapter did not grant "
4495 phba->hbq_get = NULL;
4496 phba->port_gp = phba->mbox->us.s2.port;
4500 mempool_free(pmb, phba->mbox_mem_pool);
4506 * lpfc_sli_hba_setup - SLI intialization function
4507 * @phba: Pointer to HBA context object.
4509 * This function is the main SLI intialization function. This function
4510 * is called by the HBA intialization code, HBA reset code and HBA
4511 * error attention handler code. Caller is not required to hold any
4512 * locks. This function issues config_port mailbox command to configure
4513 * the SLI, setup iocb rings and HBQ rings. In the end the function
4514 * calls the config_port_post function to issue init_link mailbox
4515 * command and to start the discovery. The function will return zero
4516 * if successful, else it will return negative error code.
4519 lpfc_sli_hba_setup(struct lpfc_hba *phba)
4525 switch (lpfc_sli_mode) {
4527 if (phba->cfg_enable_npiv) {
4528 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4529 "1824 NPIV enabled: Override lpfc_sli_mode "
4530 "parameter (%d) to auto (0).\n",
4540 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4541 "1819 Unrecognized lpfc_sli_mode "
4542 "parameter: %d.\n", lpfc_sli_mode);
4547 rc = lpfc_sli_config_port(phba, mode);
4549 if (rc && lpfc_sli_mode == 3)
4550 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4551 "1820 Unable to select SLI-3. "
4552 "Not supported by adapter.\n");
4553 if (rc && mode != 2)
4554 rc = lpfc_sli_config_port(phba, 2);
4556 goto lpfc_sli_hba_setup_error;
4558 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4559 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
4560 rc = pci_enable_pcie_error_reporting(phba->pcidev);
4562 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4563 "2709 This device supports "
4564 "Advanced Error Reporting (AER)\n");
4565 spin_lock_irq(&phba->hbalock);
4566 phba->hba_flag |= HBA_AER_ENABLED;
4567 spin_unlock_irq(&phba->hbalock);
4569 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4570 "2708 This device does not support "
4571 "Advanced Error Reporting (AER): %d\n",
4573 phba->cfg_aer_support = 0;
4577 if (phba->sli_rev == 3) {
4578 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
4579 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
4581 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
4582 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
4583 phba->sli3_options = 0;
4586 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4587 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
4588 phba->sli_rev, phba->max_vpi);
4589 rc = lpfc_sli_ring_map(phba);
4592 goto lpfc_sli_hba_setup_error;
4594 /* Initialize VPIs. */
4595 if (phba->sli_rev == LPFC_SLI_REV3) {
4597 * The VPI bitmask and physical ID array are allocated
4598 * and initialized once only - at driver load. A port
4599 * reset doesn't need to reinitialize this memory.
4601 if ((phba->vpi_bmask == NULL) && (phba->vpi_ids == NULL)) {
4602 longs = (phba->max_vpi + BITS_PER_LONG) / BITS_PER_LONG;
4603 phba->vpi_bmask = kzalloc(longs * sizeof(unsigned long),
4605 if (!phba->vpi_bmask) {
4607 goto lpfc_sli_hba_setup_error;
4610 phba->vpi_ids = kzalloc(
4611 (phba->max_vpi+1) * sizeof(uint16_t),
4613 if (!phba->vpi_ids) {
4614 kfree(phba->vpi_bmask);
4616 goto lpfc_sli_hba_setup_error;
4618 for (i = 0; i < phba->max_vpi; i++)
4619 phba->vpi_ids[i] = i;
4624 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
4625 rc = lpfc_sli_hbq_setup(phba);
4627 goto lpfc_sli_hba_setup_error;
4629 spin_lock_irq(&phba->hbalock);
4630 phba->sli.sli_flag |= LPFC_PROCESS_LA;
4631 spin_unlock_irq(&phba->hbalock);
4633 rc = lpfc_config_port_post(phba);
4635 goto lpfc_sli_hba_setup_error;
4639 lpfc_sli_hba_setup_error:
4640 phba->link_state = LPFC_HBA_ERROR;
4641 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4642 "0445 Firmware initialization failed\n");
4647 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
4648 * @phba: Pointer to HBA context object.
4649 * @mboxq: mailbox pointer.
4650 * This function issue a dump mailbox command to read config region
4651 * 23 and parse the records in the region and populate driver
4655 lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba)
4657 LPFC_MBOXQ_t *mboxq;
4658 struct lpfc_dmabuf *mp;
4659 struct lpfc_mqe *mqe;
4660 uint32_t data_length;
4663 /* Program the default value of vlan_id and fc_map */
4664 phba->valid_vlan = 0;
4665 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4666 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4667 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4669 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4673 mqe = &mboxq->u.mqe;
4674 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq)) {
4676 goto out_free_mboxq;
4679 mp = (struct lpfc_dmabuf *) mboxq->context1;
4680 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4682 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4683 "(%d):2571 Mailbox cmd x%x Status x%x "
4684 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4685 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4686 "CQ: x%x x%x x%x x%x\n",
4687 mboxq->vport ? mboxq->vport->vpi : 0,
4688 bf_get(lpfc_mqe_command, mqe),
4689 bf_get(lpfc_mqe_status, mqe),
4690 mqe->un.mb_words[0], mqe->un.mb_words[1],
4691 mqe->un.mb_words[2], mqe->un.mb_words[3],
4692 mqe->un.mb_words[4], mqe->un.mb_words[5],
4693 mqe->un.mb_words[6], mqe->un.mb_words[7],
4694 mqe->un.mb_words[8], mqe->un.mb_words[9],
4695 mqe->un.mb_words[10], mqe->un.mb_words[11],
4696 mqe->un.mb_words[12], mqe->un.mb_words[13],
4697 mqe->un.mb_words[14], mqe->un.mb_words[15],
4698 mqe->un.mb_words[16], mqe->un.mb_words[50],
4700 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
4701 mboxq->mcqe.trailer);
4704 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4707 goto out_free_mboxq;
4709 data_length = mqe->un.mb_words[5];
4710 if (data_length > DMP_RGN23_SIZE) {
4711 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4714 goto out_free_mboxq;
4717 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
4718 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4723 mempool_free(mboxq, phba->mbox_mem_pool);
4728 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
4729 * @phba: pointer to lpfc hba data structure.
4730 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
4731 * @vpd: pointer to the memory to hold resulting port vpd data.
4732 * @vpd_size: On input, the number of bytes allocated to @vpd.
4733 * On output, the number of data bytes in @vpd.
4735 * This routine executes a READ_REV SLI4 mailbox command. In
4736 * addition, this routine gets the port vpd data.
4740 * -ENOMEM - could not allocated memory.
4743 lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
4744 uint8_t *vpd, uint32_t *vpd_size)
4748 struct lpfc_dmabuf *dmabuf;
4749 struct lpfc_mqe *mqe;
4751 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4756 * Get a DMA buffer for the vpd data resulting from the READ_REV
4759 dma_size = *vpd_size;
4760 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4764 if (!dmabuf->virt) {
4768 memset(dmabuf->virt, 0, dma_size);
4771 * The SLI4 implementation of READ_REV conflicts at word1,
4772 * bits 31:16 and SLI4 adds vpd functionality not present
4773 * in SLI3. This code corrects the conflicts.
4775 lpfc_read_rev(phba, mboxq);
4776 mqe = &mboxq->u.mqe;
4777 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
4778 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
4779 mqe->un.read_rev.word1 &= 0x0000FFFF;
4780 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
4781 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
4783 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4785 dma_free_coherent(&phba->pcidev->dev, dma_size,
4786 dmabuf->virt, dmabuf->phys);
4792 * The available vpd length cannot be bigger than the
4793 * DMA buffer passed to the port. Catch the less than
4794 * case and update the caller's size.
4796 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
4797 *vpd_size = mqe->un.read_rev.avail_vpd_len;
4799 memcpy(vpd, dmabuf->virt, *vpd_size);
4801 dma_free_coherent(&phba->pcidev->dev, dma_size,
4802 dmabuf->virt, dmabuf->phys);
4808 * lpfc_sli4_retrieve_pport_name - Retrieve SLI4 device physical port name
4809 * @phba: pointer to lpfc hba data structure.
4811 * This routine retrieves SLI4 device physical port name this PCI function
4816 * otherwise - failed to retrieve physical port name
4819 lpfc_sli4_retrieve_pport_name(struct lpfc_hba *phba)
4821 LPFC_MBOXQ_t *mboxq;
4822 struct lpfc_mbx_get_cntl_attributes *mbx_cntl_attr;
4823 struct lpfc_controller_attribute *cntl_attr;
4824 struct lpfc_mbx_get_port_name *get_port_name;
4825 void *virtaddr = NULL;
4826 uint32_t alloclen, reqlen;
4827 uint32_t shdr_status, shdr_add_status;
4828 union lpfc_sli4_cfg_shdr *shdr;
4829 char cport_name = 0;
4832 /* We assume nothing at this point */
4833 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
4834 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_NON;
4836 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4839 /* obtain link type and link number via READ_CONFIG */
4840 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
4841 lpfc_sli4_read_config(phba);
4842 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL)
4843 goto retrieve_ppname;
4845 /* obtain link type and link number via COMMON_GET_CNTL_ATTRIBUTES */
4846 reqlen = sizeof(struct lpfc_mbx_get_cntl_attributes);
4847 alloclen = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
4848 LPFC_MBOX_OPCODE_GET_CNTL_ATTRIBUTES, reqlen,
4849 LPFC_SLI4_MBX_NEMBED);
4850 if (alloclen < reqlen) {
4851 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4852 "3084 Allocated DMA memory size (%d) is "
4853 "less than the requested DMA memory size "
4854 "(%d)\n", alloclen, reqlen);
4856 goto out_free_mboxq;
4858 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4859 virtaddr = mboxq->sge_array->addr[0];
4860 mbx_cntl_attr = (struct lpfc_mbx_get_cntl_attributes *)virtaddr;
4861 shdr = &mbx_cntl_attr->cfg_shdr;
4862 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
4863 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
4864 if (shdr_status || shdr_add_status || rc) {
4865 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4866 "3085 Mailbox x%x (x%x/x%x) failed, "
4867 "rc:x%x, status:x%x, add_status:x%x\n",
4868 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4869 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
4870 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
4871 rc, shdr_status, shdr_add_status);
4873 goto out_free_mboxq;
4875 cntl_attr = &mbx_cntl_attr->cntl_attr;
4876 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
4877 phba->sli4_hba.lnk_info.lnk_tp =
4878 bf_get(lpfc_cntl_attr_lnk_type, cntl_attr);
4879 phba->sli4_hba.lnk_info.lnk_no =
4880 bf_get(lpfc_cntl_attr_lnk_numb, cntl_attr);
4881 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4882 "3086 lnk_type:%d, lnk_numb:%d\n",
4883 phba->sli4_hba.lnk_info.lnk_tp,
4884 phba->sli4_hba.lnk_info.lnk_no);
4887 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
4888 LPFC_MBOX_OPCODE_GET_PORT_NAME,
4889 sizeof(struct lpfc_mbx_get_port_name) -
4890 sizeof(struct lpfc_sli4_cfg_mhdr),
4891 LPFC_SLI4_MBX_EMBED);
4892 get_port_name = &mboxq->u.mqe.un.get_port_name;
4893 shdr = (union lpfc_sli4_cfg_shdr *)&get_port_name->header.cfg_shdr;
4894 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_OPCODE_VERSION_1);
4895 bf_set(lpfc_mbx_get_port_name_lnk_type, &get_port_name->u.request,
4896 phba->sli4_hba.lnk_info.lnk_tp);
4897 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4898 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
4899 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
4900 if (shdr_status || shdr_add_status || rc) {
4901 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4902 "3087 Mailbox x%x (x%x/x%x) failed: "
4903 "rc:x%x, status:x%x, add_status:x%x\n",
4904 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4905 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
4906 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
4907 rc, shdr_status, shdr_add_status);
4909 goto out_free_mboxq;
4911 switch (phba->sli4_hba.lnk_info.lnk_no) {
4912 case LPFC_LINK_NUMBER_0:
4913 cport_name = bf_get(lpfc_mbx_get_port_name_name0,
4914 &get_port_name->u.response);
4915 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4917 case LPFC_LINK_NUMBER_1:
4918 cport_name = bf_get(lpfc_mbx_get_port_name_name1,
4919 &get_port_name->u.response);
4920 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4922 case LPFC_LINK_NUMBER_2:
4923 cport_name = bf_get(lpfc_mbx_get_port_name_name2,
4924 &get_port_name->u.response);
4925 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4927 case LPFC_LINK_NUMBER_3:
4928 cport_name = bf_get(lpfc_mbx_get_port_name_name3,
4929 &get_port_name->u.response);
4930 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4936 if (phba->sli4_hba.pport_name_sta == LPFC_SLI4_PPNAME_GET) {
4937 phba->Port[0] = cport_name;
4938 phba->Port[1] = '\0';
4939 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4940 "3091 SLI get port name: %s\n", phba->Port);
4944 if (rc != MBX_TIMEOUT) {
4945 if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
4946 lpfc_sli4_mbox_cmd_free(phba, mboxq);
4948 mempool_free(mboxq, phba->mbox_mem_pool);
4954 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
4955 * @phba: pointer to lpfc hba data structure.
4957 * This routine is called to explicitly arm the SLI4 device's completion and
4961 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
4965 lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM);
4966 lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM);
4968 if (phba->sli4_hba.fcp_cq) {
4970 lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[fcp_eqidx],
4972 } while (++fcp_eqidx < phba->cfg_fcp_io_channel);
4974 if (phba->sli4_hba.hba_eq) {
4975 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel;
4977 lpfc_sli4_eq_release(phba->sli4_hba.hba_eq[fcp_eqidx],
4983 * lpfc_sli4_get_avail_extnt_rsrc - Get available resource extent count.
4984 * @phba: Pointer to HBA context object.
4985 * @type: The resource extent type.
4986 * @extnt_count: buffer to hold port available extent count.
4987 * @extnt_size: buffer to hold element count per extent.
4989 * This function calls the port and retrievs the number of available
4990 * extents and their size for a particular extent type.
4992 * Returns: 0 if successful. Nonzero otherwise.
4995 lpfc_sli4_get_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type,
4996 uint16_t *extnt_count, uint16_t *extnt_size)
5001 struct lpfc_mbx_get_rsrc_extent_info *rsrc_info;
5004 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5008 /* Find out how many extents are available for this resource type */
5009 length = (sizeof(struct lpfc_mbx_get_rsrc_extent_info) -
5010 sizeof(struct lpfc_sli4_cfg_mhdr));
5011 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5012 LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO,
5013 length, LPFC_SLI4_MBX_EMBED);
5015 /* Send an extents count of 0 - the GET doesn't use it. */
5016 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5017 LPFC_SLI4_MBX_EMBED);
5023 if (!phba->sli4_hba.intr_enable)
5024 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5026 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5027 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5034 rsrc_info = &mbox->u.mqe.un.rsrc_extent_info;
5035 if (bf_get(lpfc_mbox_hdr_status,
5036 &rsrc_info->header.cfg_shdr.response)) {
5037 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5038 "2930 Failed to get resource extents "
5039 "Status 0x%x Add'l Status 0x%x\n",
5040 bf_get(lpfc_mbox_hdr_status,
5041 &rsrc_info->header.cfg_shdr.response),
5042 bf_get(lpfc_mbox_hdr_add_status,
5043 &rsrc_info->header.cfg_shdr.response));
5048 *extnt_count = bf_get(lpfc_mbx_get_rsrc_extent_info_cnt,
5050 *extnt_size = bf_get(lpfc_mbx_get_rsrc_extent_info_size,
5053 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5054 "3162 Retrieved extents type-%d from port: count:%d, "
5055 "size:%d\n", type, *extnt_count, *extnt_size);
5058 mempool_free(mbox, phba->mbox_mem_pool);
5063 * lpfc_sli4_chk_avail_extnt_rsrc - Check for available SLI4 resource extents.
5064 * @phba: Pointer to HBA context object.
5065 * @type: The extent type to check.
5067 * This function reads the current available extents from the port and checks
5068 * if the extent count or extent size has changed since the last access.
5069 * Callers use this routine post port reset to understand if there is a
5070 * extent reprovisioning requirement.
5073 * -Error: error indicates problem.
5074 * 1: Extent count or size has changed.
5078 lpfc_sli4_chk_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type)
5080 uint16_t curr_ext_cnt, rsrc_ext_cnt;
5081 uint16_t size_diff, rsrc_ext_size;
5083 struct lpfc_rsrc_blks *rsrc_entry;
5084 struct list_head *rsrc_blk_list = NULL;
5088 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5095 case LPFC_RSC_TYPE_FCOE_RPI:
5096 rsrc_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5098 case LPFC_RSC_TYPE_FCOE_VPI:
5099 rsrc_blk_list = &phba->lpfc_vpi_blk_list;
5101 case LPFC_RSC_TYPE_FCOE_XRI:
5102 rsrc_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5104 case LPFC_RSC_TYPE_FCOE_VFI:
5105 rsrc_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5111 list_for_each_entry(rsrc_entry, rsrc_blk_list, list) {
5113 if (rsrc_entry->rsrc_size != rsrc_ext_size)
5117 if (curr_ext_cnt != rsrc_ext_cnt || size_diff != 0)
5124 * lpfc_sli4_cfg_post_extnts -
5125 * @phba: Pointer to HBA context object.
5126 * @extnt_cnt - number of available extents.
5127 * @type - the extent type (rpi, xri, vfi, vpi).
5128 * @emb - buffer to hold either MBX_EMBED or MBX_NEMBED operation.
5129 * @mbox - pointer to the caller's allocated mailbox structure.
5131 * This function executes the extents allocation request. It also
5132 * takes care of the amount of memory needed to allocate or get the
5133 * allocated extents. It is the caller's responsibility to evaluate
5137 * -Error: Error value describes the condition found.
5141 lpfc_sli4_cfg_post_extnts(struct lpfc_hba *phba, uint16_t extnt_cnt,
5142 uint16_t type, bool *emb, LPFC_MBOXQ_t *mbox)
5147 uint32_t alloc_len, mbox_tmo;
5149 /* Calculate the total requested length of the dma memory */
5150 req_len = extnt_cnt * sizeof(uint16_t);
5153 * Calculate the size of an embedded mailbox. The uint32_t
5154 * accounts for extents-specific word.
5156 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
5160 * Presume the allocation and response will fit into an embedded
5161 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5163 *emb = LPFC_SLI4_MBX_EMBED;
5164 if (req_len > emb_len) {
5165 req_len = extnt_cnt * sizeof(uint16_t) +
5166 sizeof(union lpfc_sli4_cfg_shdr) +
5168 *emb = LPFC_SLI4_MBX_NEMBED;
5171 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5172 LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT,
5174 if (alloc_len < req_len) {
5175 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5176 "2982 Allocated DMA memory size (x%x) is "
5177 "less than the requested DMA memory "
5178 "size (x%x)\n", alloc_len, req_len);
5181 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, extnt_cnt, type, *emb);
5185 if (!phba->sli4_hba.intr_enable)
5186 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5188 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5189 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5198 * lpfc_sli4_alloc_extent - Allocate an SLI4 resource extent.
5199 * @phba: Pointer to HBA context object.
5200 * @type: The resource extent type to allocate.
5202 * This function allocates the number of elements for the specified
5206 lpfc_sli4_alloc_extent(struct lpfc_hba *phba, uint16_t type)
5209 uint16_t rsrc_id_cnt, rsrc_cnt, rsrc_size;
5210 uint16_t rsrc_id, rsrc_start, j, k;
5213 unsigned long longs;
5214 unsigned long *bmask;
5215 struct lpfc_rsrc_blks *rsrc_blks;
5218 struct lpfc_id_range *id_array = NULL;
5219 void *virtaddr = NULL;
5220 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5221 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5222 struct list_head *ext_blk_list;
5224 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5230 if ((rsrc_cnt == 0) || (rsrc_size == 0)) {
5231 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5232 "3009 No available Resource Extents "
5233 "for resource type 0x%x: Count: 0x%x, "
5234 "Size 0x%x\n", type, rsrc_cnt,
5239 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_INIT | LOG_SLI,
5240 "2903 Post resource extents type-0x%x: "
5241 "count:%d, size %d\n", type, rsrc_cnt, rsrc_size);
5243 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5247 rc = lpfc_sli4_cfg_post_extnts(phba, rsrc_cnt, type, &emb, mbox);
5254 * Figure out where the response is located. Then get local pointers
5255 * to the response data. The port does not guarantee to respond to
5256 * all extents counts request so update the local variable with the
5257 * allocated count from the port.
5259 if (emb == LPFC_SLI4_MBX_EMBED) {
5260 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
5261 id_array = &rsrc_ext->u.rsp.id[0];
5262 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
5264 virtaddr = mbox->sge_array->addr[0];
5265 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
5266 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
5267 id_array = &n_rsrc->id;
5270 longs = ((rsrc_cnt * rsrc_size) + BITS_PER_LONG - 1) / BITS_PER_LONG;
5271 rsrc_id_cnt = rsrc_cnt * rsrc_size;
5274 * Based on the resource size and count, correct the base and max
5277 length = sizeof(struct lpfc_rsrc_blks);
5279 case LPFC_RSC_TYPE_FCOE_RPI:
5280 phba->sli4_hba.rpi_bmask = kzalloc(longs *
5281 sizeof(unsigned long),
5283 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5287 phba->sli4_hba.rpi_ids = kzalloc(rsrc_id_cnt *
5290 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5291 kfree(phba->sli4_hba.rpi_bmask);
5297 * The next_rpi was initialized with the maximum available
5298 * count but the port may allocate a smaller number. Catch
5299 * that case and update the next_rpi.
5301 phba->sli4_hba.next_rpi = rsrc_id_cnt;
5303 /* Initialize local ptrs for common extent processing later. */
5304 bmask = phba->sli4_hba.rpi_bmask;
5305 ids = phba->sli4_hba.rpi_ids;
5306 ext_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5308 case LPFC_RSC_TYPE_FCOE_VPI:
5309 phba->vpi_bmask = kzalloc(longs *
5310 sizeof(unsigned long),
5312 if (unlikely(!phba->vpi_bmask)) {
5316 phba->vpi_ids = kzalloc(rsrc_id_cnt *
5319 if (unlikely(!phba->vpi_ids)) {
5320 kfree(phba->vpi_bmask);
5325 /* Initialize local ptrs for common extent processing later. */
5326 bmask = phba->vpi_bmask;
5327 ids = phba->vpi_ids;
5328 ext_blk_list = &phba->lpfc_vpi_blk_list;
5330 case LPFC_RSC_TYPE_FCOE_XRI:
5331 phba->sli4_hba.xri_bmask = kzalloc(longs *
5332 sizeof(unsigned long),
5334 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5338 phba->sli4_hba.max_cfg_param.xri_used = 0;
5339 phba->sli4_hba.xri_ids = kzalloc(rsrc_id_cnt *
5342 if (unlikely(!phba->sli4_hba.xri_ids)) {
5343 kfree(phba->sli4_hba.xri_bmask);
5348 /* Initialize local ptrs for common extent processing later. */
5349 bmask = phba->sli4_hba.xri_bmask;
5350 ids = phba->sli4_hba.xri_ids;
5351 ext_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5353 case LPFC_RSC_TYPE_FCOE_VFI:
5354 phba->sli4_hba.vfi_bmask = kzalloc(longs *
5355 sizeof(unsigned long),
5357 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5361 phba->sli4_hba.vfi_ids = kzalloc(rsrc_id_cnt *
5364 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5365 kfree(phba->sli4_hba.vfi_bmask);
5370 /* Initialize local ptrs for common extent processing later. */
5371 bmask = phba->sli4_hba.vfi_bmask;
5372 ids = phba->sli4_hba.vfi_ids;
5373 ext_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5376 /* Unsupported Opcode. Fail call. */
5380 ext_blk_list = NULL;
5385 * Complete initializing the extent configuration with the
5386 * allocated ids assigned to this function. The bitmask serves
5387 * as an index into the array and manages the available ids. The
5388 * array just stores the ids communicated to the port via the wqes.
5390 for (i = 0, j = 0, k = 0; i < rsrc_cnt; i++) {
5392 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_0,
5395 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_1,
5398 rsrc_blks = kzalloc(length, GFP_KERNEL);
5399 if (unlikely(!rsrc_blks)) {
5405 rsrc_blks->rsrc_start = rsrc_id;
5406 rsrc_blks->rsrc_size = rsrc_size;
5407 list_add_tail(&rsrc_blks->list, ext_blk_list);
5408 rsrc_start = rsrc_id;
5409 if ((type == LPFC_RSC_TYPE_FCOE_XRI) && (j == 0))
5410 phba->sli4_hba.scsi_xri_start = rsrc_start +
5411 lpfc_sli4_get_els_iocb_cnt(phba);
5413 while (rsrc_id < (rsrc_start + rsrc_size)) {
5418 /* Entire word processed. Get next word.*/
5423 lpfc_sli4_mbox_cmd_free(phba, mbox);
5428 * lpfc_sli4_dealloc_extent - Deallocate an SLI4 resource extent.
5429 * @phba: Pointer to HBA context object.
5430 * @type: the extent's type.
5432 * This function deallocates all extents of a particular resource type.
5433 * SLI4 does not allow for deallocating a particular extent range. It
5434 * is the caller's responsibility to release all kernel memory resources.
5437 lpfc_sli4_dealloc_extent(struct lpfc_hba *phba, uint16_t type)
5440 uint32_t length, mbox_tmo = 0;
5442 struct lpfc_mbx_dealloc_rsrc_extents *dealloc_rsrc;
5443 struct lpfc_rsrc_blks *rsrc_blk, *rsrc_blk_next;
5445 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5450 * This function sends an embedded mailbox because it only sends the
5451 * the resource type. All extents of this type are released by the
5454 length = (sizeof(struct lpfc_mbx_dealloc_rsrc_extents) -
5455 sizeof(struct lpfc_sli4_cfg_mhdr));
5456 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5457 LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT,
5458 length, LPFC_SLI4_MBX_EMBED);
5460 /* Send an extents count of 0 - the dealloc doesn't use it. */
5461 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5462 LPFC_SLI4_MBX_EMBED);
5467 if (!phba->sli4_hba.intr_enable)
5468 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5470 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5471 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5478 dealloc_rsrc = &mbox->u.mqe.un.dealloc_rsrc_extents;
5479 if (bf_get(lpfc_mbox_hdr_status,
5480 &dealloc_rsrc->header.cfg_shdr.response)) {
5481 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5482 "2919 Failed to release resource extents "
5483 "for type %d - Status 0x%x Add'l Status 0x%x. "
5484 "Resource memory not released.\n",
5486 bf_get(lpfc_mbox_hdr_status,
5487 &dealloc_rsrc->header.cfg_shdr.response),
5488 bf_get(lpfc_mbox_hdr_add_status,
5489 &dealloc_rsrc->header.cfg_shdr.response));
5494 /* Release kernel memory resources for the specific type. */
5496 case LPFC_RSC_TYPE_FCOE_VPI:
5497 kfree(phba->vpi_bmask);
5498 kfree(phba->vpi_ids);
5499 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5500 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5501 &phba->lpfc_vpi_blk_list, list) {
5502 list_del_init(&rsrc_blk->list);
5505 phba->sli4_hba.max_cfg_param.vpi_used = 0;
5507 case LPFC_RSC_TYPE_FCOE_XRI:
5508 kfree(phba->sli4_hba.xri_bmask);
5509 kfree(phba->sli4_hba.xri_ids);
5510 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5511 &phba->sli4_hba.lpfc_xri_blk_list, list) {
5512 list_del_init(&rsrc_blk->list);
5516 case LPFC_RSC_TYPE_FCOE_VFI:
5517 kfree(phba->sli4_hba.vfi_bmask);
5518 kfree(phba->sli4_hba.vfi_ids);
5519 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5520 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5521 &phba->sli4_hba.lpfc_vfi_blk_list, list) {
5522 list_del_init(&rsrc_blk->list);
5526 case LPFC_RSC_TYPE_FCOE_RPI:
5527 /* RPI bitmask and physical id array are cleaned up earlier. */
5528 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5529 &phba->sli4_hba.lpfc_rpi_blk_list, list) {
5530 list_del_init(&rsrc_blk->list);
5538 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5541 mempool_free(mbox, phba->mbox_mem_pool);
5546 * lpfc_sli4_alloc_resource_identifiers - Allocate all SLI4 resource extents.
5547 * @phba: Pointer to HBA context object.
5549 * This function allocates all SLI4 resource identifiers.
5552 lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba *phba)
5554 int i, rc, error = 0;
5555 uint16_t count, base;
5556 unsigned long longs;
5558 if (!phba->sli4_hba.rpi_hdrs_in_use)
5559 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
5560 if (phba->sli4_hba.extents_in_use) {
5562 * The port supports resource extents. The XRI, VPI, VFI, RPI
5563 * resource extent count must be read and allocated before
5564 * provisioning the resource id arrays.
5566 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
5567 LPFC_IDX_RSRC_RDY) {
5569 * Extent-based resources are set - the driver could
5570 * be in a port reset. Figure out if any corrective
5571 * actions need to be taken.
5573 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5574 LPFC_RSC_TYPE_FCOE_VFI);
5577 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5578 LPFC_RSC_TYPE_FCOE_VPI);
5581 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5582 LPFC_RSC_TYPE_FCOE_XRI);
5585 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5586 LPFC_RSC_TYPE_FCOE_RPI);
5591 * It's possible that the number of resources
5592 * provided to this port instance changed between
5593 * resets. Detect this condition and reallocate
5594 * resources. Otherwise, there is no action.
5597 lpfc_printf_log(phba, KERN_INFO,
5598 LOG_MBOX | LOG_INIT,
5599 "2931 Detected extent resource "
5600 "change. Reallocating all "
5602 rc = lpfc_sli4_dealloc_extent(phba,
5603 LPFC_RSC_TYPE_FCOE_VFI);
5604 rc = lpfc_sli4_dealloc_extent(phba,
5605 LPFC_RSC_TYPE_FCOE_VPI);
5606 rc = lpfc_sli4_dealloc_extent(phba,
5607 LPFC_RSC_TYPE_FCOE_XRI);
5608 rc = lpfc_sli4_dealloc_extent(phba,
5609 LPFC_RSC_TYPE_FCOE_RPI);
5614 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
5618 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
5622 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
5626 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
5629 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
5634 * The port does not support resource extents. The XRI, VPI,
5635 * VFI, RPI resource ids were determined from READ_CONFIG.
5636 * Just allocate the bitmasks and provision the resource id
5637 * arrays. If a port reset is active, the resources don't
5638 * need any action - just exit.
5640 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
5641 LPFC_IDX_RSRC_RDY) {
5642 lpfc_sli4_dealloc_resource_identifiers(phba);
5643 lpfc_sli4_remove_rpis(phba);
5646 count = phba->sli4_hba.max_cfg_param.max_rpi;
5648 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5649 "3279 Invalid provisioning of "
5654 base = phba->sli4_hba.max_cfg_param.rpi_base;
5655 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5656 phba->sli4_hba.rpi_bmask = kzalloc(longs *
5657 sizeof(unsigned long),
5659 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5663 phba->sli4_hba.rpi_ids = kzalloc(count *
5666 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5668 goto free_rpi_bmask;
5671 for (i = 0; i < count; i++)
5672 phba->sli4_hba.rpi_ids[i] = base + i;
5675 count = phba->sli4_hba.max_cfg_param.max_vpi;
5677 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5678 "3280 Invalid provisioning of "
5683 base = phba->sli4_hba.max_cfg_param.vpi_base;
5684 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5685 phba->vpi_bmask = kzalloc(longs *
5686 sizeof(unsigned long),
5688 if (unlikely(!phba->vpi_bmask)) {
5692 phba->vpi_ids = kzalloc(count *
5695 if (unlikely(!phba->vpi_ids)) {
5697 goto free_vpi_bmask;
5700 for (i = 0; i < count; i++)
5701 phba->vpi_ids[i] = base + i;
5704 count = phba->sli4_hba.max_cfg_param.max_xri;
5706 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5707 "3281 Invalid provisioning of "
5712 base = phba->sli4_hba.max_cfg_param.xri_base;
5713 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5714 phba->sli4_hba.xri_bmask = kzalloc(longs *
5715 sizeof(unsigned long),
5717 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5721 phba->sli4_hba.max_cfg_param.xri_used = 0;
5722 phba->sli4_hba.xri_ids = kzalloc(count *
5725 if (unlikely(!phba->sli4_hba.xri_ids)) {
5727 goto free_xri_bmask;
5730 for (i = 0; i < count; i++)
5731 phba->sli4_hba.xri_ids[i] = base + i;
5734 count = phba->sli4_hba.max_cfg_param.max_vfi;
5736 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5737 "3282 Invalid provisioning of "
5742 base = phba->sli4_hba.max_cfg_param.vfi_base;
5743 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5744 phba->sli4_hba.vfi_bmask = kzalloc(longs *
5745 sizeof(unsigned long),
5747 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5751 phba->sli4_hba.vfi_ids = kzalloc(count *
5754 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5756 goto free_vfi_bmask;
5759 for (i = 0; i < count; i++)
5760 phba->sli4_hba.vfi_ids[i] = base + i;
5763 * Mark all resources ready. An HBA reset doesn't need
5764 * to reset the initialization.
5766 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
5772 kfree(phba->sli4_hba.vfi_bmask);
5774 kfree(phba->sli4_hba.xri_ids);
5776 kfree(phba->sli4_hba.xri_bmask);
5778 kfree(phba->vpi_ids);
5780 kfree(phba->vpi_bmask);
5782 kfree(phba->sli4_hba.rpi_ids);
5784 kfree(phba->sli4_hba.rpi_bmask);
5790 * lpfc_sli4_dealloc_resource_identifiers - Deallocate all SLI4 resource extents.
5791 * @phba: Pointer to HBA context object.
5793 * This function allocates the number of elements for the specified
5797 lpfc_sli4_dealloc_resource_identifiers(struct lpfc_hba *phba)
5799 if (phba->sli4_hba.extents_in_use) {
5800 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
5801 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
5802 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
5803 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
5805 kfree(phba->vpi_bmask);
5806 phba->sli4_hba.max_cfg_param.vpi_used = 0;
5807 kfree(phba->vpi_ids);
5808 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5809 kfree(phba->sli4_hba.xri_bmask);
5810 kfree(phba->sli4_hba.xri_ids);
5811 kfree(phba->sli4_hba.vfi_bmask);
5812 kfree(phba->sli4_hba.vfi_ids);
5813 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5814 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5821 * lpfc_sli4_get_allocated_extnts - Get the port's allocated extents.
5822 * @phba: Pointer to HBA context object.
5823 * @type: The resource extent type.
5824 * @extnt_count: buffer to hold port extent count response
5825 * @extnt_size: buffer to hold port extent size response.
5827 * This function calls the port to read the host allocated extents
5828 * for a particular type.
5831 lpfc_sli4_get_allocated_extnts(struct lpfc_hba *phba, uint16_t type,
5832 uint16_t *extnt_cnt, uint16_t *extnt_size)
5836 uint16_t curr_blks = 0;
5837 uint32_t req_len, emb_len;
5838 uint32_t alloc_len, mbox_tmo;
5839 struct list_head *blk_list_head;
5840 struct lpfc_rsrc_blks *rsrc_blk;
5842 void *virtaddr = NULL;
5843 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5844 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5845 union lpfc_sli4_cfg_shdr *shdr;
5848 case LPFC_RSC_TYPE_FCOE_VPI:
5849 blk_list_head = &phba->lpfc_vpi_blk_list;
5851 case LPFC_RSC_TYPE_FCOE_XRI:
5852 blk_list_head = &phba->sli4_hba.lpfc_xri_blk_list;
5854 case LPFC_RSC_TYPE_FCOE_VFI:
5855 blk_list_head = &phba->sli4_hba.lpfc_vfi_blk_list;
5857 case LPFC_RSC_TYPE_FCOE_RPI:
5858 blk_list_head = &phba->sli4_hba.lpfc_rpi_blk_list;
5864 /* Count the number of extents currently allocatd for this type. */
5865 list_for_each_entry(rsrc_blk, blk_list_head, list) {
5866 if (curr_blks == 0) {
5868 * The GET_ALLOCATED mailbox does not return the size,
5869 * just the count. The size should be just the size
5870 * stored in the current allocated block and all sizes
5871 * for an extent type are the same so set the return
5874 *extnt_size = rsrc_blk->rsrc_size;
5879 /* Calculate the total requested length of the dma memory. */
5880 req_len = curr_blks * sizeof(uint16_t);
5883 * Calculate the size of an embedded mailbox. The uint32_t
5884 * accounts for extents-specific word.
5886 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
5890 * Presume the allocation and response will fit into an embedded
5891 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5893 emb = LPFC_SLI4_MBX_EMBED;
5895 if (req_len > emb_len) {
5896 req_len = curr_blks * sizeof(uint16_t) +
5897 sizeof(union lpfc_sli4_cfg_shdr) +
5899 emb = LPFC_SLI4_MBX_NEMBED;
5902 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5905 memset(mbox, 0, sizeof(LPFC_MBOXQ_t));
5907 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5908 LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT,
5910 if (alloc_len < req_len) {
5911 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5912 "2983 Allocated DMA memory size (x%x) is "
5913 "less than the requested DMA memory "
5914 "size (x%x)\n", alloc_len, req_len);
5918 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, curr_blks, type, emb);
5924 if (!phba->sli4_hba.intr_enable)
5925 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5927 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5928 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5937 * Figure out where the response is located. Then get local pointers
5938 * to the response data. The port does not guarantee to respond to
5939 * all extents counts request so update the local variable with the
5940 * allocated count from the port.
5942 if (emb == LPFC_SLI4_MBX_EMBED) {
5943 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
5944 shdr = &rsrc_ext->header.cfg_shdr;
5945 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
5947 virtaddr = mbox->sge_array->addr[0];
5948 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
5949 shdr = &n_rsrc->cfg_shdr;
5950 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
5953 if (bf_get(lpfc_mbox_hdr_status, &shdr->response)) {
5954 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5955 "2984 Failed to read allocated resources "
5956 "for type %d - Status 0x%x Add'l Status 0x%x.\n",
5958 bf_get(lpfc_mbox_hdr_status, &shdr->response),
5959 bf_get(lpfc_mbox_hdr_add_status, &shdr->response));
5964 lpfc_sli4_mbox_cmd_free(phba, mbox);
5969 * lpfc_sli4_repost_els_sgl_list - Repsot the els buffers sgl pages as block
5970 * @phba: pointer to lpfc hba data structure.
5972 * This routine walks the list of els buffers that have been allocated and
5973 * repost them to the port by using SGL block post. This is needed after a
5974 * pci_function_reset/warm_start or start. It attempts to construct blocks
5975 * of els buffer sgls which contains contiguous xris and uses the non-embedded
5976 * SGL block post mailbox commands to post them to the port. For single els
5977 * buffer sgl with non-contiguous xri, if any, it shall use embedded SGL post
5978 * mailbox command for posting.
5980 * Returns: 0 = success, non-zero failure.
5983 lpfc_sli4_repost_els_sgl_list(struct lpfc_hba *phba)
5985 struct lpfc_sglq *sglq_entry = NULL;
5986 struct lpfc_sglq *sglq_entry_next = NULL;
5987 struct lpfc_sglq *sglq_entry_first = NULL;
5988 int status, total_cnt, post_cnt = 0, num_posted = 0, block_cnt = 0;
5989 int last_xritag = NO_XRI;
5990 LIST_HEAD(prep_sgl_list);
5991 LIST_HEAD(blck_sgl_list);
5992 LIST_HEAD(allc_sgl_list);
5993 LIST_HEAD(post_sgl_list);
5994 LIST_HEAD(free_sgl_list);
5996 spin_lock_irq(&phba->hbalock);
5997 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &allc_sgl_list);
5998 spin_unlock_irq(&phba->hbalock);
6000 total_cnt = phba->sli4_hba.els_xri_cnt;
6001 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
6002 &allc_sgl_list, list) {
6003 list_del_init(&sglq_entry->list);
6005 if ((last_xritag != NO_XRI) &&
6006 (sglq_entry->sli4_xritag != last_xritag + 1)) {
6007 /* a hole in xri block, form a sgl posting block */
6008 list_splice_init(&prep_sgl_list, &blck_sgl_list);
6009 post_cnt = block_cnt - 1;
6010 /* prepare list for next posting block */
6011 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6014 /* prepare list for next posting block */
6015 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6016 /* enough sgls for non-embed sgl mbox command */
6017 if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
6018 list_splice_init(&prep_sgl_list,
6020 post_cnt = block_cnt;
6026 /* keep track of last sgl's xritag */
6027 last_xritag = sglq_entry->sli4_xritag;
6029 /* end of repost sgl list condition for els buffers */
6030 if (num_posted == phba->sli4_hba.els_xri_cnt) {
6031 if (post_cnt == 0) {
6032 list_splice_init(&prep_sgl_list,
6034 post_cnt = block_cnt;
6035 } else if (block_cnt == 1) {
6036 status = lpfc_sli4_post_sgl(phba,
6037 sglq_entry->phys, 0,
6038 sglq_entry->sli4_xritag);
6040 /* successful, put sgl to posted list */
6041 list_add_tail(&sglq_entry->list,
6044 /* Failure, put sgl to free list */
6045 lpfc_printf_log(phba, KERN_WARNING,
6047 "3159 Failed to post els "
6048 "sgl, xritag:x%x\n",
6049 sglq_entry->sli4_xritag);
6050 list_add_tail(&sglq_entry->list,
6057 /* continue until a nembed page worth of sgls */
6061 /* post the els buffer list sgls as a block */
6062 status = lpfc_sli4_post_els_sgl_list(phba, &blck_sgl_list,
6066 /* success, put sgl list to posted sgl list */
6067 list_splice_init(&blck_sgl_list, &post_sgl_list);
6069 /* Failure, put sgl list to free sgl list */
6070 sglq_entry_first = list_first_entry(&blck_sgl_list,
6073 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6074 "3160 Failed to post els sgl-list, "
6076 sglq_entry_first->sli4_xritag,
6077 (sglq_entry_first->sli4_xritag +
6079 list_splice_init(&blck_sgl_list, &free_sgl_list);
6080 total_cnt -= post_cnt;
6083 /* don't reset xirtag due to hole in xri block */
6085 last_xritag = NO_XRI;
6087 /* reset els sgl post count for next round of posting */
6090 /* update the number of XRIs posted for ELS */
6091 phba->sli4_hba.els_xri_cnt = total_cnt;
6093 /* free the els sgls failed to post */
6094 lpfc_free_sgl_list(phba, &free_sgl_list);
6096 /* push els sgls posted to the availble list */
6097 if (!list_empty(&post_sgl_list)) {
6098 spin_lock_irq(&phba->hbalock);
6099 list_splice_init(&post_sgl_list,
6100 &phba->sli4_hba.lpfc_sgl_list);
6101 spin_unlock_irq(&phba->hbalock);
6103 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6104 "3161 Failure to post els sgl to port.\n");
6111 * lpfc_sli4_hba_setup - SLI4 device intialization PCI function
6112 * @phba: Pointer to HBA context object.
6114 * This function is the main SLI4 device intialization PCI function. This
6115 * function is called by the HBA intialization code, HBA reset code and
6116 * HBA error attention handler code. Caller is not required to hold any
6120 lpfc_sli4_hba_setup(struct lpfc_hba *phba)
6123 LPFC_MBOXQ_t *mboxq;
6124 struct lpfc_mqe *mqe;
6127 uint32_t ftr_rsp = 0;
6128 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
6129 struct lpfc_vport *vport = phba->pport;
6130 struct lpfc_dmabuf *mp;
6132 /* Perform a PCI function reset to start from clean */
6133 rc = lpfc_pci_function_reset(phba);
6137 /* Check the HBA Host Status Register for readyness */
6138 rc = lpfc_sli4_post_status_check(phba);
6142 spin_lock_irq(&phba->hbalock);
6143 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
6144 spin_unlock_irq(&phba->hbalock);
6148 * Allocate a single mailbox container for initializing the
6151 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6155 /* Issue READ_REV to collect vpd and FW information. */
6156 vpd_size = SLI4_PAGE_SIZE;
6157 vpd = kzalloc(vpd_size, GFP_KERNEL);
6163 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
6169 mqe = &mboxq->u.mqe;
6170 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
6171 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev))
6172 phba->hba_flag |= HBA_FCOE_MODE;
6174 phba->hba_flag &= ~HBA_FCOE_MODE;
6176 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
6178 phba->hba_flag |= HBA_FIP_SUPPORT;
6180 phba->hba_flag &= ~HBA_FIP_SUPPORT;
6182 phba->hba_flag &= ~HBA_FCP_IOQ_FLUSH;
6184 if (phba->sli_rev != LPFC_SLI_REV4) {
6185 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6186 "0376 READ_REV Error. SLI Level %d "
6187 "FCoE enabled %d\n",
6188 phba->sli_rev, phba->hba_flag & HBA_FCOE_MODE);
6195 * Continue initialization with default values even if driver failed
6196 * to read FCoE param config regions, only read parameters if the
6199 if (phba->hba_flag & HBA_FCOE_MODE &&
6200 lpfc_sli4_read_fcoe_params(phba))
6201 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_INIT,
6202 "2570 Failed to read FCoE parameters\n");
6205 * Retrieve sli4 device physical port name, failure of doing it
6206 * is considered as non-fatal.
6208 rc = lpfc_sli4_retrieve_pport_name(phba);
6210 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6211 "3080 Successful retrieving SLI4 device "
6212 "physical port name: %s.\n", phba->Port);
6215 * Evaluate the read rev and vpd data. Populate the driver
6216 * state with the results. If this routine fails, the failure
6217 * is not fatal as the driver will use generic values.
6219 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
6220 if (unlikely(!rc)) {
6221 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6222 "0377 Error %d parsing vpd. "
6223 "Using defaults.\n", rc);
6228 /* Save information as VPD data */
6229 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
6230 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
6231 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
6232 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
6234 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
6236 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
6238 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
6240 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
6241 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
6242 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
6243 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
6244 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
6245 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
6246 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6247 "(%d):0380 READ_REV Status x%x "
6248 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
6249 mboxq->vport ? mboxq->vport->vpi : 0,
6250 bf_get(lpfc_mqe_status, mqe),
6251 phba->vpd.rev.opFwName,
6252 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
6253 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
6255 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */
6256 rc = (phba->sli4_hba.max_cfg_param.max_xri >> 3);
6257 if (phba->pport->cfg_lun_queue_depth > rc) {
6258 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6259 "3362 LUN queue depth changed from %d to %d\n",
6260 phba->pport->cfg_lun_queue_depth, rc);
6261 phba->pport->cfg_lun_queue_depth = rc;
6266 * Discover the port's supported feature set and match it against the
6269 lpfc_request_features(phba, mboxq);
6270 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6277 * The port must support FCP initiator mode as this is the
6278 * only mode running in the host.
6280 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
6281 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6282 "0378 No support for fcpi mode.\n");
6285 if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh, &mqe->un.req_ftrs))
6286 phba->sli3_options |= LPFC_SLI4_PERFH_ENABLED;
6288 phba->sli3_options &= ~LPFC_SLI4_PERFH_ENABLED;
6290 * If the port cannot support the host's requested features
6291 * then turn off the global config parameters to disable the
6292 * feature in the driver. This is not a fatal error.
6294 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
6295 if (phba->cfg_enable_bg) {
6296 if (bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))
6297 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
6302 if (phba->max_vpi && phba->cfg_enable_npiv &&
6303 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6307 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6308 "0379 Feature Mismatch Data: x%08x %08x "
6309 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
6310 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
6311 phba->cfg_enable_npiv, phba->max_vpi);
6312 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
6313 phba->cfg_enable_bg = 0;
6314 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6315 phba->cfg_enable_npiv = 0;
6318 /* These SLI3 features are assumed in SLI4 */
6319 spin_lock_irq(&phba->hbalock);
6320 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
6321 spin_unlock_irq(&phba->hbalock);
6324 * Allocate all resources (xri,rpi,vpi,vfi) now. Subsequent
6325 * calls depends on these resources to complete port setup.
6327 rc = lpfc_sli4_alloc_resource_identifiers(phba);
6329 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6330 "2920 Failed to alloc Resource IDs "
6335 /* Read the port's service parameters. */
6336 rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
6338 phba->link_state = LPFC_HBA_ERROR;
6343 mboxq->vport = vport;
6344 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6345 mp = (struct lpfc_dmabuf *) mboxq->context1;
6346 if (rc == MBX_SUCCESS) {
6347 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
6352 * This memory was allocated by the lpfc_read_sparam routine. Release
6353 * it to the mbuf pool.
6355 lpfc_mbuf_free(phba, mp->virt, mp->phys);
6357 mboxq->context1 = NULL;
6359 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6360 "0382 READ_SPARAM command failed "
6361 "status %d, mbxStatus x%x\n",
6362 rc, bf_get(lpfc_mqe_status, mqe));
6363 phba->link_state = LPFC_HBA_ERROR;
6368 lpfc_update_vport_wwn(vport);
6370 /* Update the fc_host data structures with new wwn. */
6371 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
6372 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
6374 /* update host els and scsi xri-sgl sizes and mappings */
6375 rc = lpfc_sli4_xri_sgl_update(phba);
6377 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6378 "1400 Failed to update xri-sgl size and "
6379 "mapping: %d\n", rc);
6383 /* register the els sgl pool to the port */
6384 rc = lpfc_sli4_repost_els_sgl_list(phba);
6386 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6387 "0582 Error %d during els sgl post "
6393 /* register the allocated scsi sgl pool to the port */
6394 rc = lpfc_sli4_repost_scsi_sgl_list(phba);
6396 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6397 "0383 Error %d during scsi sgl post "
6399 /* Some Scsi buffers were moved to the abort scsi list */
6400 /* A pci function reset will repost them */
6405 /* Post the rpi header region to the device. */
6406 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
6408 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6409 "0393 Error %d during rpi post operation\n",
6414 lpfc_sli4_node_prep(phba);
6416 /* Create all the SLI4 queues */
6417 rc = lpfc_sli4_queue_create(phba);
6419 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6420 "3089 Failed to allocate queues\n");
6422 goto out_stop_timers;
6424 /* Set up all the queues to the device */
6425 rc = lpfc_sli4_queue_setup(phba);
6427 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6428 "0381 Error %d during queue setup.\n ", rc);
6429 goto out_destroy_queue;
6432 /* Arm the CQs and then EQs on device */
6433 lpfc_sli4_arm_cqeq_intr(phba);
6435 /* Indicate device interrupt mode */
6436 phba->sli4_hba.intr_enable = 1;
6438 /* Allow asynchronous mailbox command to go through */
6439 spin_lock_irq(&phba->hbalock);
6440 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
6441 spin_unlock_irq(&phba->hbalock);
6443 /* Post receive buffers to the device */
6444 lpfc_sli4_rb_setup(phba);
6446 /* Reset HBA FCF states after HBA reset */
6447 phba->fcf.fcf_flag = 0;
6448 phba->fcf.current_rec.flag = 0;
6450 /* Start the ELS watchdog timer */
6451 mod_timer(&vport->els_tmofunc,
6452 jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov * 2)));
6454 /* Start heart beat timer */
6455 mod_timer(&phba->hb_tmofunc,
6456 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
6457 phba->hb_outstanding = 0;
6458 phba->last_completion_time = jiffies;
6460 /* Start error attention (ERATT) polling timer */
6461 mod_timer(&phba->eratt_poll,
6462 jiffies + msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
6464 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
6465 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
6466 rc = pci_enable_pcie_error_reporting(phba->pcidev);
6468 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6469 "2829 This device supports "
6470 "Advanced Error Reporting (AER)\n");
6471 spin_lock_irq(&phba->hbalock);
6472 phba->hba_flag |= HBA_AER_ENABLED;
6473 spin_unlock_irq(&phba->hbalock);
6475 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6476 "2830 This device does not support "
6477 "Advanced Error Reporting (AER)\n");
6478 phba->cfg_aer_support = 0;
6483 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
6485 * The FC Port needs to register FCFI (index 0)
6487 lpfc_reg_fcfi(phba, mboxq);
6488 mboxq->vport = phba->pport;
6489 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6490 if (rc != MBX_SUCCESS)
6491 goto out_unset_queue;
6493 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi,
6494 &mboxq->u.mqe.un.reg_fcfi);
6496 /* Check if the port is configured to be disabled */
6497 lpfc_sli_read_link_ste(phba);
6501 * The port is ready, set the host's link state to LINK_DOWN
6502 * in preparation for link interrupts.
6504 spin_lock_irq(&phba->hbalock);
6505 phba->link_state = LPFC_LINK_DOWN;
6506 spin_unlock_irq(&phba->hbalock);
6507 if (!(phba->hba_flag & HBA_FCOE_MODE) &&
6508 (phba->hba_flag & LINK_DISABLED)) {
6509 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
6510 "3103 Adapter Link is disabled.\n");
6511 lpfc_down_link(phba, mboxq);
6512 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6513 if (rc != MBX_SUCCESS) {
6514 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
6515 "3104 Adapter failed to issue "
6516 "DOWN_LINK mbox cmd, rc:x%x\n", rc);
6517 goto out_unset_queue;
6519 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
6520 /* don't perform init_link on SLI4 FC port loopback test */
6521 if (!(phba->link_flag & LS_LOOPBACK_MODE)) {
6522 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
6524 goto out_unset_queue;
6527 mempool_free(mboxq, phba->mbox_mem_pool);
6530 /* Unset all the queues set up in this routine when error out */
6531 lpfc_sli4_queue_unset(phba);
6533 lpfc_sli4_queue_destroy(phba);
6535 lpfc_stop_hba_timers(phba);
6537 mempool_free(mboxq, phba->mbox_mem_pool);
6542 * lpfc_mbox_timeout - Timeout call back function for mbox timer
6543 * @ptr: context object - pointer to hba structure.
6545 * This is the callback function for mailbox timer. The mailbox
6546 * timer is armed when a new mailbox command is issued and the timer
6547 * is deleted when the mailbox complete. The function is called by
6548 * the kernel timer code when a mailbox does not complete within
6549 * expected time. This function wakes up the worker thread to
6550 * process the mailbox timeout and returns. All the processing is
6551 * done by the worker thread function lpfc_mbox_timeout_handler.
6554 lpfc_mbox_timeout(unsigned long ptr)
6556 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
6557 unsigned long iflag;
6558 uint32_t tmo_posted;
6560 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
6561 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
6563 phba->pport->work_port_events |= WORKER_MBOX_TMO;
6564 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
6567 lpfc_worker_wake_up(phba);
6572 * lpfc_sli4_mbox_completions_pending - check to see if any mailbox completions
6574 * @phba: Pointer to HBA context object.
6576 * This function checks if any mailbox completions are present on the mailbox
6580 lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba)
6584 struct lpfc_queue *mcq;
6585 struct lpfc_mcqe *mcqe;
6586 bool pending_completions = false;
6588 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
6591 /* Check for completions on mailbox completion queue */
6593 mcq = phba->sli4_hba.mbx_cq;
6594 idx = mcq->hba_index;
6595 while (bf_get_le32(lpfc_cqe_valid, mcq->qe[idx].cqe)) {
6596 mcqe = (struct lpfc_mcqe *)mcq->qe[idx].cqe;
6597 if (bf_get_le32(lpfc_trailer_completed, mcqe) &&
6598 (!bf_get_le32(lpfc_trailer_async, mcqe))) {
6599 pending_completions = true;
6602 idx = (idx + 1) % mcq->entry_count;
6603 if (mcq->hba_index == idx)
6606 return pending_completions;
6611 * lpfc_sli4_process_missed_mbox_completions - process mbox completions
6613 * @phba: Pointer to HBA context object.
6615 * For sli4, it is possible to miss an interrupt. As such mbox completions
6616 * maybe missed causing erroneous mailbox timeouts to occur. This function
6617 * checks to see if mbox completions are on the mailbox completion queue
6618 * and will process all the completions associated with the eq for the
6619 * mailbox completion queue.
6622 lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba)
6626 struct lpfc_queue *fpeq = NULL;
6627 struct lpfc_eqe *eqe;
6630 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
6633 /* Find the eq associated with the mcq */
6635 if (phba->sli4_hba.hba_eq)
6636 for (eqidx = 0; eqidx < phba->cfg_fcp_io_channel; eqidx++)
6637 if (phba->sli4_hba.hba_eq[eqidx]->queue_id ==
6638 phba->sli4_hba.mbx_cq->assoc_qid) {
6639 fpeq = phba->sli4_hba.hba_eq[eqidx];
6645 /* Turn off interrupts from this EQ */
6647 lpfc_sli4_eq_clr_intr(fpeq);
6649 /* Check to see if a mbox completion is pending */
6651 mbox_pending = lpfc_sli4_mbox_completions_pending(phba);
6654 * If a mbox completion is pending, process all the events on EQ
6655 * associated with the mbox completion queue (this could include
6656 * mailbox commands, async events, els commands, receive queue data
6661 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
6662 lpfc_sli4_hba_handle_eqe(phba, eqe, eqidx);
6663 fpeq->EQ_processed++;
6666 /* Always clear and re-arm the EQ */
6668 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
6670 return mbox_pending;
6675 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
6676 * @phba: Pointer to HBA context object.
6678 * This function is called from worker thread when a mailbox command times out.
6679 * The caller is not required to hold any locks. This function will reset the
6680 * HBA and recover all the pending commands.
6683 lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
6685 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
6686 MAILBOX_t *mb = &pmbox->u.mb;
6687 struct lpfc_sli *psli = &phba->sli;
6688 struct lpfc_sli_ring *pring;
6690 /* If the mailbox completed, process the completion and return */
6691 if (lpfc_sli4_process_missed_mbox_completions(phba))
6694 /* Check the pmbox pointer first. There is a race condition
6695 * between the mbox timeout handler getting executed in the
6696 * worklist and the mailbox actually completing. When this
6697 * race condition occurs, the mbox_active will be NULL.
6699 spin_lock_irq(&phba->hbalock);
6700 if (pmbox == NULL) {
6701 lpfc_printf_log(phba, KERN_WARNING,
6703 "0353 Active Mailbox cleared - mailbox timeout "
6705 spin_unlock_irq(&phba->hbalock);
6709 /* Mbox cmd <mbxCommand> timeout */
6710 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6711 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
6713 phba->pport->port_state,
6715 phba->sli.mbox_active);
6716 spin_unlock_irq(&phba->hbalock);
6718 /* Setting state unknown so lpfc_sli_abort_iocb_ring
6719 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
6720 * it to fail all outstanding SCSI IO.
6722 spin_lock_irq(&phba->pport->work_port_lock);
6723 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
6724 spin_unlock_irq(&phba->pport->work_port_lock);
6725 spin_lock_irq(&phba->hbalock);
6726 phba->link_state = LPFC_LINK_UNKNOWN;
6727 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
6728 spin_unlock_irq(&phba->hbalock);
6730 pring = &psli->ring[psli->fcp_ring];
6731 lpfc_sli_abort_iocb_ring(phba, pring);
6733 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6734 "0345 Resetting board due to mailbox timeout\n");
6736 /* Reset the HBA device */
6737 lpfc_reset_hba(phba);
6741 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
6742 * @phba: Pointer to HBA context object.
6743 * @pmbox: Pointer to mailbox object.
6744 * @flag: Flag indicating how the mailbox need to be processed.
6746 * This function is called by discovery code and HBA management code
6747 * to submit a mailbox command to firmware with SLI-3 interface spec. This
6748 * function gets the hbalock to protect the data structures.
6749 * The mailbox command can be submitted in polling mode, in which case
6750 * this function will wait in a polling loop for the completion of the
6752 * If the mailbox is submitted in no_wait mode (not polling) the
6753 * function will submit the command and returns immediately without waiting
6754 * for the mailbox completion. The no_wait is supported only when HBA
6755 * is in SLI2/SLI3 mode - interrupts are enabled.
6756 * The SLI interface allows only one mailbox pending at a time. If the
6757 * mailbox is issued in polling mode and there is already a mailbox
6758 * pending, then the function will return an error. If the mailbox is issued
6759 * in NO_WAIT mode and there is a mailbox pending already, the function
6760 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
6761 * The sli layer owns the mailbox object until the completion of mailbox
6762 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
6763 * return codes the caller owns the mailbox command after the return of
6767 lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
6771 struct lpfc_sli *psli = &phba->sli;
6772 uint32_t status, evtctr;
6773 uint32_t ha_copy, hc_copy;
6775 unsigned long timeout;
6776 unsigned long drvr_flag = 0;
6777 uint32_t word0, ldata;
6778 void __iomem *to_slim;
6779 int processing_queue = 0;
6781 spin_lock_irqsave(&phba->hbalock, drvr_flag);
6783 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6784 /* processing mbox queue from intr_handler */
6785 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
6786 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6789 processing_queue = 1;
6790 pmbox = lpfc_mbox_get(phba);
6792 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6797 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
6798 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
6800 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6801 lpfc_printf_log(phba, KERN_ERR,
6802 LOG_MBOX | LOG_VPORT,
6803 "1806 Mbox x%x failed. No vport\n",
6804 pmbox->u.mb.mbxCommand);
6806 goto out_not_finished;
6810 /* If the PCI channel is in offline state, do not post mbox. */
6811 if (unlikely(pci_channel_offline(phba->pcidev))) {
6812 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6813 goto out_not_finished;
6816 /* If HBA has a deferred error attention, fail the iocb. */
6817 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
6818 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6819 goto out_not_finished;
6825 status = MBX_SUCCESS;
6827 if (phba->link_state == LPFC_HBA_ERROR) {
6828 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6830 /* Mbox command <mbxCommand> cannot issue */
6831 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6832 "(%d):0311 Mailbox command x%x cannot "
6833 "issue Data: x%x x%x\n",
6834 pmbox->vport ? pmbox->vport->vpi : 0,
6835 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
6836 goto out_not_finished;
6839 if (mbx->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT) {
6840 if (lpfc_readl(phba->HCregaddr, &hc_copy) ||
6841 !(hc_copy & HC_MBINT_ENA)) {
6842 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6843 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6844 "(%d):2528 Mailbox command x%x cannot "
6845 "issue Data: x%x x%x\n",
6846 pmbox->vport ? pmbox->vport->vpi : 0,
6847 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
6848 goto out_not_finished;
6852 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
6853 /* Polling for a mbox command when another one is already active
6854 * is not allowed in SLI. Also, the driver must have established
6855 * SLI2 mode to queue and process multiple mbox commands.
6858 if (flag & MBX_POLL) {
6859 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6861 /* Mbox command <mbxCommand> cannot issue */
6862 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6863 "(%d):2529 Mailbox command x%x "
6864 "cannot issue Data: x%x x%x\n",
6865 pmbox->vport ? pmbox->vport->vpi : 0,
6866 pmbox->u.mb.mbxCommand,
6867 psli->sli_flag, flag);
6868 goto out_not_finished;
6871 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
6872 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6873 /* Mbox command <mbxCommand> cannot issue */
6874 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6875 "(%d):2530 Mailbox command x%x "
6876 "cannot issue Data: x%x x%x\n",
6877 pmbox->vport ? pmbox->vport->vpi : 0,
6878 pmbox->u.mb.mbxCommand,
6879 psli->sli_flag, flag);
6880 goto out_not_finished;
6883 /* Another mailbox command is still being processed, queue this
6884 * command to be processed later.
6886 lpfc_mbox_put(phba, pmbox);
6888 /* Mbox cmd issue - BUSY */
6889 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6890 "(%d):0308 Mbox cmd issue - BUSY Data: "
6891 "x%x x%x x%x x%x\n",
6892 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
6893 mbx->mbxCommand, phba->pport->port_state,
6894 psli->sli_flag, flag);
6896 psli->slistat.mbox_busy++;
6897 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6900 lpfc_debugfs_disc_trc(pmbox->vport,
6901 LPFC_DISC_TRC_MBOX_VPORT,
6902 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
6903 (uint32_t)mbx->mbxCommand,
6904 mbx->un.varWords[0], mbx->un.varWords[1]);
6907 lpfc_debugfs_disc_trc(phba->pport,
6909 "MBOX Bsy: cmd:x%x mb:x%x x%x",
6910 (uint32_t)mbx->mbxCommand,
6911 mbx->un.varWords[0], mbx->un.varWords[1]);
6917 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
6919 /* If we are not polling, we MUST be in SLI2 mode */
6920 if (flag != MBX_POLL) {
6921 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
6922 (mbx->mbxCommand != MBX_KILL_BOARD)) {
6923 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6924 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6925 /* Mbox command <mbxCommand> cannot issue */
6926 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6927 "(%d):2531 Mailbox command x%x "
6928 "cannot issue Data: x%x x%x\n",
6929 pmbox->vport ? pmbox->vport->vpi : 0,
6930 pmbox->u.mb.mbxCommand,
6931 psli->sli_flag, flag);
6932 goto out_not_finished;
6934 /* timeout active mbox command */
6935 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
6937 mod_timer(&psli->mbox_tmo, jiffies + timeout);
6940 /* Mailbox cmd <cmd> issue */
6941 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6942 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
6944 pmbox->vport ? pmbox->vport->vpi : 0,
6945 mbx->mbxCommand, phba->pport->port_state,
6946 psli->sli_flag, flag);
6948 if (mbx->mbxCommand != MBX_HEARTBEAT) {
6950 lpfc_debugfs_disc_trc(pmbox->vport,
6951 LPFC_DISC_TRC_MBOX_VPORT,
6952 "MBOX Send vport: cmd:x%x mb:x%x x%x",
6953 (uint32_t)mbx->mbxCommand,
6954 mbx->un.varWords[0], mbx->un.varWords[1]);
6957 lpfc_debugfs_disc_trc(phba->pport,
6959 "MBOX Send: cmd:x%x mb:x%x x%x",
6960 (uint32_t)mbx->mbxCommand,
6961 mbx->un.varWords[0], mbx->un.varWords[1]);
6965 psli->slistat.mbox_cmd++;
6966 evtctr = psli->slistat.mbox_event;
6968 /* next set own bit for the adapter and copy over command word */
6969 mbx->mbxOwner = OWN_CHIP;
6971 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
6972 /* Populate mbox extension offset word. */
6973 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) {
6974 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
6975 = (uint8_t *)phba->mbox_ext
6976 - (uint8_t *)phba->mbox;
6979 /* Copy the mailbox extension data */
6980 if (pmbox->in_ext_byte_len && pmbox->context2) {
6981 lpfc_sli_pcimem_bcopy(pmbox->context2,
6982 (uint8_t *)phba->mbox_ext,
6983 pmbox->in_ext_byte_len);
6985 /* Copy command data to host SLIM area */
6986 lpfc_sli_pcimem_bcopy(mbx, phba->mbox, MAILBOX_CMD_SIZE);
6988 /* Populate mbox extension offset word. */
6989 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len)
6990 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
6991 = MAILBOX_HBA_EXT_OFFSET;
6993 /* Copy the mailbox extension data */
6994 if (pmbox->in_ext_byte_len && pmbox->context2) {
6995 lpfc_memcpy_to_slim(phba->MBslimaddr +
6996 MAILBOX_HBA_EXT_OFFSET,
6997 pmbox->context2, pmbox->in_ext_byte_len);
7000 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
7001 /* copy command data into host mbox for cmpl */
7002 lpfc_sli_pcimem_bcopy(mbx, phba->mbox, MAILBOX_CMD_SIZE);
7005 /* First copy mbox command data to HBA SLIM, skip past first
7007 to_slim = phba->MBslimaddr + sizeof (uint32_t);
7008 lpfc_memcpy_to_slim(to_slim, &mbx->un.varWords[0],
7009 MAILBOX_CMD_SIZE - sizeof (uint32_t));
7011 /* Next copy over first word, with mbxOwner set */
7012 ldata = *((uint32_t *)mbx);
7013 to_slim = phba->MBslimaddr;
7014 writel(ldata, to_slim);
7015 readl(to_slim); /* flush */
7017 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
7018 /* switch over to host mailbox */
7019 psli->sli_flag |= LPFC_SLI_ACTIVE;
7027 /* Set up reference to mailbox command */
7028 psli->mbox_active = pmbox;
7029 /* Interrupt board to do it */
7030 writel(CA_MBATT, phba->CAregaddr);
7031 readl(phba->CAregaddr); /* flush */
7032 /* Don't wait for it to finish, just return */
7036 /* Set up null reference to mailbox command */
7037 psli->mbox_active = NULL;
7038 /* Interrupt board to do it */
7039 writel(CA_MBATT, phba->CAregaddr);
7040 readl(phba->CAregaddr); /* flush */
7042 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7043 /* First read mbox status word */
7044 word0 = *((uint32_t *)phba->mbox);
7045 word0 = le32_to_cpu(word0);
7047 /* First read mbox status word */
7048 if (lpfc_readl(phba->MBslimaddr, &word0)) {
7049 spin_unlock_irqrestore(&phba->hbalock,
7051 goto out_not_finished;
7055 /* Read the HBA Host Attention Register */
7056 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
7057 spin_unlock_irqrestore(&phba->hbalock,
7059 goto out_not_finished;
7061 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
7064 /* Wait for command to complete */
7065 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
7066 (!(ha_copy & HA_MBATT) &&
7067 (phba->link_state > LPFC_WARM_START))) {
7068 if (time_after(jiffies, timeout)) {
7069 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7070 spin_unlock_irqrestore(&phba->hbalock,
7072 goto out_not_finished;
7075 /* Check if we took a mbox interrupt while we were
7077 if (((word0 & OWN_CHIP) != OWN_CHIP)
7078 && (evtctr != psli->slistat.mbox_event))
7082 spin_unlock_irqrestore(&phba->hbalock,
7085 spin_lock_irqsave(&phba->hbalock, drvr_flag);
7088 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7089 /* First copy command data */
7090 word0 = *((uint32_t *)phba->mbox);
7091 word0 = le32_to_cpu(word0);
7092 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
7095 /* Check real SLIM for any errors */
7096 slimword0 = readl(phba->MBslimaddr);
7097 slimmb = (MAILBOX_t *) & slimword0;
7098 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
7099 && slimmb->mbxStatus) {
7106 /* First copy command data */
7107 word0 = readl(phba->MBslimaddr);
7109 /* Read the HBA Host Attention Register */
7110 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
7111 spin_unlock_irqrestore(&phba->hbalock,
7113 goto out_not_finished;
7117 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7118 /* copy results back to user */
7119 lpfc_sli_pcimem_bcopy(phba->mbox, mbx, MAILBOX_CMD_SIZE);
7120 /* Copy the mailbox extension data */
7121 if (pmbox->out_ext_byte_len && pmbox->context2) {
7122 lpfc_sli_pcimem_bcopy(phba->mbox_ext,
7124 pmbox->out_ext_byte_len);
7127 /* First copy command data */
7128 lpfc_memcpy_from_slim(mbx, phba->MBslimaddr,
7130 /* Copy the mailbox extension data */
7131 if (pmbox->out_ext_byte_len && pmbox->context2) {
7132 lpfc_memcpy_from_slim(pmbox->context2,
7134 MAILBOX_HBA_EXT_OFFSET,
7135 pmbox->out_ext_byte_len);
7139 writel(HA_MBATT, phba->HAregaddr);
7140 readl(phba->HAregaddr); /* flush */
7142 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7143 status = mbx->mbxStatus;
7146 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7150 if (processing_queue) {
7151 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
7152 lpfc_mbox_cmpl_put(phba, pmbox);
7154 return MBX_NOT_FINISHED;
7158 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
7159 * @phba: Pointer to HBA context object.
7161 * The function blocks the posting of SLI4 asynchronous mailbox commands from
7162 * the driver internal pending mailbox queue. It will then try to wait out the
7163 * possible outstanding mailbox command before return.
7166 * 0 - the outstanding mailbox command completed; otherwise, the wait for
7167 * the outstanding mailbox command timed out.
7170 lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
7172 struct lpfc_sli *psli = &phba->sli;
7174 unsigned long timeout = 0;
7176 /* Mark the asynchronous mailbox command posting as blocked */
7177 spin_lock_irq(&phba->hbalock);
7178 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
7179 /* Determine how long we might wait for the active mailbox
7180 * command to be gracefully completed by firmware.
7182 if (phba->sli.mbox_active)
7183 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
7184 phba->sli.mbox_active) *
7186 spin_unlock_irq(&phba->hbalock);
7188 /* Make sure the mailbox is really active */
7190 lpfc_sli4_process_missed_mbox_completions(phba);
7192 /* Wait for the outstnading mailbox command to complete */
7193 while (phba->sli.mbox_active) {
7194 /* Check active mailbox complete status every 2ms */
7196 if (time_after(jiffies, timeout)) {
7197 /* Timeout, marked the outstanding cmd not complete */
7203 /* Can not cleanly block async mailbox command, fails it */
7205 spin_lock_irq(&phba->hbalock);
7206 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7207 spin_unlock_irq(&phba->hbalock);
7213 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
7214 * @phba: Pointer to HBA context object.
7216 * The function unblocks and resume posting of SLI4 asynchronous mailbox
7217 * commands from the driver internal pending mailbox queue. It makes sure
7218 * that there is no outstanding mailbox command before resuming posting
7219 * asynchronous mailbox commands. If, for any reason, there is outstanding
7220 * mailbox command, it will try to wait it out before resuming asynchronous
7221 * mailbox command posting.
7224 lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
7226 struct lpfc_sli *psli = &phba->sli;
7228 spin_lock_irq(&phba->hbalock);
7229 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7230 /* Asynchronous mailbox posting is not blocked, do nothing */
7231 spin_unlock_irq(&phba->hbalock);
7235 /* Outstanding synchronous mailbox command is guaranteed to be done,
7236 * successful or timeout, after timing-out the outstanding mailbox
7237 * command shall always be removed, so just unblock posting async
7238 * mailbox command and resume
7240 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7241 spin_unlock_irq(&phba->hbalock);
7243 /* wake up worker thread to post asynchronlous mailbox command */
7244 lpfc_worker_wake_up(phba);
7248 * lpfc_sli4_wait_bmbx_ready - Wait for bootstrap mailbox register ready
7249 * @phba: Pointer to HBA context object.
7250 * @mboxq: Pointer to mailbox object.
7252 * The function waits for the bootstrap mailbox register ready bit from
7253 * port for twice the regular mailbox command timeout value.
7255 * 0 - no timeout on waiting for bootstrap mailbox register ready.
7256 * MBXERR_ERROR - wait for bootstrap mailbox register timed out.
7259 lpfc_sli4_wait_bmbx_ready(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7262 unsigned long timeout;
7263 struct lpfc_register bmbx_reg;
7265 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mboxq)
7269 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
7270 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
7274 if (time_after(jiffies, timeout))
7275 return MBXERR_ERROR;
7276 } while (!db_ready);
7282 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
7283 * @phba: Pointer to HBA context object.
7284 * @mboxq: Pointer to mailbox object.
7286 * The function posts a mailbox to the port. The mailbox is expected
7287 * to be comletely filled in and ready for the port to operate on it.
7288 * This routine executes a synchronous completion operation on the
7289 * mailbox by polling for its completion.
7291 * The caller must not be holding any locks when calling this routine.
7294 * MBX_SUCCESS - mailbox posted successfully
7295 * Any of the MBX error values.
7298 lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7300 int rc = MBX_SUCCESS;
7301 unsigned long iflag;
7302 uint32_t mcqe_status;
7304 struct lpfc_sli *psli = &phba->sli;
7305 struct lpfc_mqe *mb = &mboxq->u.mqe;
7306 struct lpfc_bmbx_create *mbox_rgn;
7307 struct dma_address *dma_address;
7310 * Only one mailbox can be active to the bootstrap mailbox region
7311 * at a time and there is no queueing provided.
7313 spin_lock_irqsave(&phba->hbalock, iflag);
7314 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7315 spin_unlock_irqrestore(&phba->hbalock, iflag);
7316 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7317 "(%d):2532 Mailbox command x%x (x%x/x%x) "
7318 "cannot issue Data: x%x x%x\n",
7319 mboxq->vport ? mboxq->vport->vpi : 0,
7320 mboxq->u.mb.mbxCommand,
7321 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7322 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7323 psli->sli_flag, MBX_POLL);
7324 return MBXERR_ERROR;
7326 /* The server grabs the token and owns it until release */
7327 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7328 phba->sli.mbox_active = mboxq;
7329 spin_unlock_irqrestore(&phba->hbalock, iflag);
7331 /* wait for bootstrap mbox register for readyness */
7332 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7337 * Initialize the bootstrap memory region to avoid stale data areas
7338 * in the mailbox post. Then copy the caller's mailbox contents to
7339 * the bmbx mailbox region.
7341 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
7342 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
7343 lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
7344 sizeof(struct lpfc_mqe));
7346 /* Post the high mailbox dma address to the port and wait for ready. */
7347 dma_address = &phba->sli4_hba.bmbx.dma_address;
7348 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
7350 /* wait for bootstrap mbox register for hi-address write done */
7351 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7355 /* Post the low mailbox dma address to the port. */
7356 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
7358 /* wait for bootstrap mbox register for low address write done */
7359 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7364 * Read the CQ to ensure the mailbox has completed.
7365 * If so, update the mailbox status so that the upper layers
7366 * can complete the request normally.
7368 lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
7369 sizeof(struct lpfc_mqe));
7370 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
7371 lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
7372 sizeof(struct lpfc_mcqe));
7373 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
7375 * When the CQE status indicates a failure and the mailbox status
7376 * indicates success then copy the CQE status into the mailbox status
7377 * (and prefix it with x4000).
7379 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
7380 if (bf_get(lpfc_mqe_status, mb) == MBX_SUCCESS)
7381 bf_set(lpfc_mqe_status, mb,
7382 (LPFC_MBX_ERROR_RANGE | mcqe_status));
7385 lpfc_sli4_swap_str(phba, mboxq);
7387 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7388 "(%d):0356 Mailbox cmd x%x (x%x/x%x) Status x%x "
7389 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
7390 " x%x x%x CQ: x%x x%x x%x x%x\n",
7391 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
7392 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7393 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7394 bf_get(lpfc_mqe_status, mb),
7395 mb->un.mb_words[0], mb->un.mb_words[1],
7396 mb->un.mb_words[2], mb->un.mb_words[3],
7397 mb->un.mb_words[4], mb->un.mb_words[5],
7398 mb->un.mb_words[6], mb->un.mb_words[7],
7399 mb->un.mb_words[8], mb->un.mb_words[9],
7400 mb->un.mb_words[10], mb->un.mb_words[11],
7401 mb->un.mb_words[12], mboxq->mcqe.word0,
7402 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
7403 mboxq->mcqe.trailer);
7405 /* We are holding the token, no needed for lock when release */
7406 spin_lock_irqsave(&phba->hbalock, iflag);
7407 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7408 phba->sli.mbox_active = NULL;
7409 spin_unlock_irqrestore(&phba->hbalock, iflag);
7414 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
7415 * @phba: Pointer to HBA context object.
7416 * @pmbox: Pointer to mailbox object.
7417 * @flag: Flag indicating how the mailbox need to be processed.
7419 * This function is called by discovery code and HBA management code to submit
7420 * a mailbox command to firmware with SLI-4 interface spec.
7422 * Return codes the caller owns the mailbox command after the return of the
7426 lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
7429 struct lpfc_sli *psli = &phba->sli;
7430 unsigned long iflags;
7433 /* dump from issue mailbox command if setup */
7434 lpfc_idiag_mbxacc_dump_issue_mbox(phba, &mboxq->u.mb);
7436 rc = lpfc_mbox_dev_check(phba);
7438 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7439 "(%d):2544 Mailbox command x%x (x%x/x%x) "
7440 "cannot issue Data: x%x x%x\n",
7441 mboxq->vport ? mboxq->vport->vpi : 0,
7442 mboxq->u.mb.mbxCommand,
7443 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7444 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7445 psli->sli_flag, flag);
7446 goto out_not_finished;
7449 /* Detect polling mode and jump to a handler */
7450 if (!phba->sli4_hba.intr_enable) {
7451 if (flag == MBX_POLL)
7452 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
7455 if (rc != MBX_SUCCESS)
7456 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7457 "(%d):2541 Mailbox command x%x "
7458 "(x%x/x%x) failure: "
7459 "mqe_sta: x%x mcqe_sta: x%x/x%x "
7461 mboxq->vport ? mboxq->vport->vpi : 0,
7462 mboxq->u.mb.mbxCommand,
7463 lpfc_sli_config_mbox_subsys_get(phba,
7465 lpfc_sli_config_mbox_opcode_get(phba,
7467 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
7468 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
7469 bf_get(lpfc_mcqe_ext_status,
7471 psli->sli_flag, flag);
7473 } else if (flag == MBX_POLL) {
7474 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7475 "(%d):2542 Try to issue mailbox command "
7476 "x%x (x%x/x%x) synchronously ahead of async"
7477 "mailbox command queue: x%x x%x\n",
7478 mboxq->vport ? mboxq->vport->vpi : 0,
7479 mboxq->u.mb.mbxCommand,
7480 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7481 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7482 psli->sli_flag, flag);
7483 /* Try to block the asynchronous mailbox posting */
7484 rc = lpfc_sli4_async_mbox_block(phba);
7486 /* Successfully blocked, now issue sync mbox cmd */
7487 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
7488 if (rc != MBX_SUCCESS)
7489 lpfc_printf_log(phba, KERN_WARNING,
7491 "(%d):2597 Sync Mailbox command "
7492 "x%x (x%x/x%x) failure: "
7493 "mqe_sta: x%x mcqe_sta: x%x/x%x "
7495 mboxq->vport ? mboxq->vport->vpi : 0,
7496 mboxq->u.mb.mbxCommand,
7497 lpfc_sli_config_mbox_subsys_get(phba,
7499 lpfc_sli_config_mbox_opcode_get(phba,
7501 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
7502 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
7503 bf_get(lpfc_mcqe_ext_status,
7505 psli->sli_flag, flag);
7506 /* Unblock the async mailbox posting afterward */
7507 lpfc_sli4_async_mbox_unblock(phba);
7512 /* Now, interrupt mode asynchrous mailbox command */
7513 rc = lpfc_mbox_cmd_check(phba, mboxq);
7515 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7516 "(%d):2543 Mailbox command x%x (x%x/x%x) "
7517 "cannot issue Data: x%x x%x\n",
7518 mboxq->vport ? mboxq->vport->vpi : 0,
7519 mboxq->u.mb.mbxCommand,
7520 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7521 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7522 psli->sli_flag, flag);
7523 goto out_not_finished;
7526 /* Put the mailbox command to the driver internal FIFO */
7527 psli->slistat.mbox_busy++;
7528 spin_lock_irqsave(&phba->hbalock, iflags);
7529 lpfc_mbox_put(phba, mboxq);
7530 spin_unlock_irqrestore(&phba->hbalock, iflags);
7531 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7532 "(%d):0354 Mbox cmd issue - Enqueue Data: "
7533 "x%x (x%x/x%x) x%x x%x x%x\n",
7534 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
7535 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
7536 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7537 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7538 phba->pport->port_state,
7539 psli->sli_flag, MBX_NOWAIT);
7540 /* Wake up worker thread to transport mailbox command from head */
7541 lpfc_worker_wake_up(phba);
7546 return MBX_NOT_FINISHED;
7550 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
7551 * @phba: Pointer to HBA context object.
7553 * This function is called by worker thread to send a mailbox command to
7554 * SLI4 HBA firmware.
7558 lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
7560 struct lpfc_sli *psli = &phba->sli;
7561 LPFC_MBOXQ_t *mboxq;
7562 int rc = MBX_SUCCESS;
7563 unsigned long iflags;
7564 struct lpfc_mqe *mqe;
7567 /* Check interrupt mode before post async mailbox command */
7568 if (unlikely(!phba->sli4_hba.intr_enable))
7569 return MBX_NOT_FINISHED;
7571 /* Check for mailbox command service token */
7572 spin_lock_irqsave(&phba->hbalock, iflags);
7573 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7574 spin_unlock_irqrestore(&phba->hbalock, iflags);
7575 return MBX_NOT_FINISHED;
7577 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7578 spin_unlock_irqrestore(&phba->hbalock, iflags);
7579 return MBX_NOT_FINISHED;
7581 if (unlikely(phba->sli.mbox_active)) {
7582 spin_unlock_irqrestore(&phba->hbalock, iflags);
7583 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7584 "0384 There is pending active mailbox cmd\n");
7585 return MBX_NOT_FINISHED;
7587 /* Take the mailbox command service token */
7588 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7590 /* Get the next mailbox command from head of queue */
7591 mboxq = lpfc_mbox_get(phba);
7593 /* If no more mailbox command waiting for post, we're done */
7595 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7596 spin_unlock_irqrestore(&phba->hbalock, iflags);
7599 phba->sli.mbox_active = mboxq;
7600 spin_unlock_irqrestore(&phba->hbalock, iflags);
7602 /* Check device readiness for posting mailbox command */
7603 rc = lpfc_mbox_dev_check(phba);
7605 /* Driver clean routine will clean up pending mailbox */
7606 goto out_not_finished;
7608 /* Prepare the mbox command to be posted */
7609 mqe = &mboxq->u.mqe;
7610 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
7612 /* Start timer for the mbox_tmo and log some mailbox post messages */
7613 mod_timer(&psli->mbox_tmo, (jiffies +
7614 msecs_to_jiffies(1000 * lpfc_mbox_tmo_val(phba, mboxq))));
7616 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7617 "(%d):0355 Mailbox cmd x%x (x%x/x%x) issue Data: "
7619 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
7620 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7621 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7622 phba->pport->port_state, psli->sli_flag);
7624 if (mbx_cmnd != MBX_HEARTBEAT) {
7626 lpfc_debugfs_disc_trc(mboxq->vport,
7627 LPFC_DISC_TRC_MBOX_VPORT,
7628 "MBOX Send vport: cmd:x%x mb:x%x x%x",
7629 mbx_cmnd, mqe->un.mb_words[0],
7630 mqe->un.mb_words[1]);
7632 lpfc_debugfs_disc_trc(phba->pport,
7634 "MBOX Send: cmd:x%x mb:x%x x%x",
7635 mbx_cmnd, mqe->un.mb_words[0],
7636 mqe->un.mb_words[1]);
7639 psli->slistat.mbox_cmd++;
7641 /* Post the mailbox command to the port */
7642 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
7643 if (rc != MBX_SUCCESS) {
7644 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7645 "(%d):2533 Mailbox command x%x (x%x/x%x) "
7646 "cannot issue Data: x%x x%x\n",
7647 mboxq->vport ? mboxq->vport->vpi : 0,
7648 mboxq->u.mb.mbxCommand,
7649 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7650 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7651 psli->sli_flag, MBX_NOWAIT);
7652 goto out_not_finished;
7658 spin_lock_irqsave(&phba->hbalock, iflags);
7659 if (phba->sli.mbox_active) {
7660 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
7661 __lpfc_mbox_cmpl_put(phba, mboxq);
7662 /* Release the token */
7663 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7664 phba->sli.mbox_active = NULL;
7666 spin_unlock_irqrestore(&phba->hbalock, iflags);
7668 return MBX_NOT_FINISHED;
7672 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
7673 * @phba: Pointer to HBA context object.
7674 * @pmbox: Pointer to mailbox object.
7675 * @flag: Flag indicating how the mailbox need to be processed.
7677 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
7678 * the API jump table function pointer from the lpfc_hba struct.
7680 * Return codes the caller owns the mailbox command after the return of the
7684 lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
7686 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
7690 * lpfc_mbox_api_table_setup - Set up mbox api function jump table
7691 * @phba: The hba struct for which this call is being executed.
7692 * @dev_grp: The HBA PCI-Device group number.
7694 * This routine sets up the mbox interface API function jump table in @phba
7696 * Returns: 0 - success, -ENODEV - failure.
7699 lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
7703 case LPFC_PCI_DEV_LP:
7704 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
7705 phba->lpfc_sli_handle_slow_ring_event =
7706 lpfc_sli_handle_slow_ring_event_s3;
7707 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
7708 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
7709 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
7711 case LPFC_PCI_DEV_OC:
7712 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
7713 phba->lpfc_sli_handle_slow_ring_event =
7714 lpfc_sli_handle_slow_ring_event_s4;
7715 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
7716 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
7717 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
7720 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7721 "1420 Invalid HBA PCI-device group: 0x%x\n",
7730 * __lpfc_sli_ringtx_put - Add an iocb to the txq
7731 * @phba: Pointer to HBA context object.
7732 * @pring: Pointer to driver SLI ring object.
7733 * @piocb: Pointer to address of newly added command iocb.
7735 * This function is called with hbalock held to add a command
7736 * iocb to the txq when SLI layer cannot submit the command iocb
7740 __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7741 struct lpfc_iocbq *piocb)
7743 /* Insert the caller's iocb in the txq tail for later processing. */
7744 list_add_tail(&piocb->list, &pring->txq);
7748 * lpfc_sli_next_iocb - Get the next iocb in the txq
7749 * @phba: Pointer to HBA context object.
7750 * @pring: Pointer to driver SLI ring object.
7751 * @piocb: Pointer to address of newly added command iocb.
7753 * This function is called with hbalock held before a new
7754 * iocb is submitted to the firmware. This function checks
7755 * txq to flush the iocbs in txq to Firmware before
7756 * submitting new iocbs to the Firmware.
7757 * If there are iocbs in the txq which need to be submitted
7758 * to firmware, lpfc_sli_next_iocb returns the first element
7759 * of the txq after dequeuing it from txq.
7760 * If there is no iocb in the txq then the function will return
7761 * *piocb and *piocb is set to NULL. Caller needs to check
7762 * *piocb to find if there are more commands in the txq.
7764 static struct lpfc_iocbq *
7765 lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7766 struct lpfc_iocbq **piocb)
7768 struct lpfc_iocbq * nextiocb;
7770 nextiocb = lpfc_sli_ringtx_get(phba, pring);
7780 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
7781 * @phba: Pointer to HBA context object.
7782 * @ring_number: SLI ring number to issue iocb on.
7783 * @piocb: Pointer to command iocb.
7784 * @flag: Flag indicating if this command can be put into txq.
7786 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
7787 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
7788 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
7789 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
7790 * this function allows only iocbs for posting buffers. This function finds
7791 * next available slot in the command ring and posts the command to the
7792 * available slot and writes the port attention register to request HBA start
7793 * processing new iocb. If there is no slot available in the ring and
7794 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
7795 * the function returns IOCB_BUSY.
7797 * This function is called with hbalock held. The function will return success
7798 * after it successfully submit the iocb to firmware or after adding to the
7802 __lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
7803 struct lpfc_iocbq *piocb, uint32_t flag)
7805 struct lpfc_iocbq *nextiocb;
7807 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
7809 if (piocb->iocb_cmpl && (!piocb->vport) &&
7810 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
7811 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
7812 lpfc_printf_log(phba, KERN_ERR,
7813 LOG_SLI | LOG_VPORT,
7814 "1807 IOCB x%x failed. No vport\n",
7815 piocb->iocb.ulpCommand);
7821 /* If the PCI channel is in offline state, do not post iocbs. */
7822 if (unlikely(pci_channel_offline(phba->pcidev)))
7825 /* If HBA has a deferred error attention, fail the iocb. */
7826 if (unlikely(phba->hba_flag & DEFER_ERATT))
7830 * We should never get an IOCB if we are in a < LINK_DOWN state
7832 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
7836 * Check to see if we are blocking IOCB processing because of a
7837 * outstanding event.
7839 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
7842 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
7844 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
7845 * can be issued if the link is not up.
7847 switch (piocb->iocb.ulpCommand) {
7848 case CMD_GEN_REQUEST64_CR:
7849 case CMD_GEN_REQUEST64_CX:
7850 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
7851 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
7852 FC_RCTL_DD_UNSOL_CMD) ||
7853 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
7854 MENLO_TRANSPORT_TYPE))
7858 case CMD_QUE_RING_BUF_CN:
7859 case CMD_QUE_RING_BUF64_CN:
7861 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
7862 * completion, iocb_cmpl MUST be 0.
7864 if (piocb->iocb_cmpl)
7865 piocb->iocb_cmpl = NULL;
7867 case CMD_CREATE_XRI_CR:
7868 case CMD_CLOSE_XRI_CN:
7869 case CMD_CLOSE_XRI_CX:
7876 * For FCP commands, we must be in a state where we can process link
7879 } else if (unlikely(pring->ringno == phba->sli.fcp_ring &&
7880 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
7884 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
7885 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
7886 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
7889 lpfc_sli_update_ring(phba, pring);
7891 lpfc_sli_update_full_ring(phba, pring);
7894 return IOCB_SUCCESS;
7899 pring->stats.iocb_cmd_delay++;
7903 if (!(flag & SLI_IOCB_RET_IOCB)) {
7904 __lpfc_sli_ringtx_put(phba, pring, piocb);
7905 return IOCB_SUCCESS;
7912 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
7913 * @phba: Pointer to HBA context object.
7914 * @piocb: Pointer to command iocb.
7915 * @sglq: Pointer to the scatter gather queue object.
7917 * This routine converts the bpl or bde that is in the IOCB
7918 * to a sgl list for the sli4 hardware. The physical address
7919 * of the bpl/bde is converted back to a virtual address.
7920 * If the IOCB contains a BPL then the list of BDE's is
7921 * converted to sli4_sge's. If the IOCB contains a single
7922 * BDE then it is converted to a single sli_sge.
7923 * The IOCB is still in cpu endianess so the contents of
7924 * the bpl can be used without byte swapping.
7926 * Returns valid XRI = Success, NO_XRI = Failure.
7929 lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
7930 struct lpfc_sglq *sglq)
7932 uint16_t xritag = NO_XRI;
7933 struct ulp_bde64 *bpl = NULL;
7934 struct ulp_bde64 bde;
7935 struct sli4_sge *sgl = NULL;
7936 struct lpfc_dmabuf *dmabuf;
7940 uint32_t offset = 0; /* accumulated offset in the sg request list */
7941 int inbound = 0; /* number of sg reply entries inbound from firmware */
7943 if (!piocbq || !sglq)
7946 sgl = (struct sli4_sge *)sglq->sgl;
7947 icmd = &piocbq->iocb;
7948 if (icmd->ulpCommand == CMD_XMIT_BLS_RSP64_CX)
7949 return sglq->sli4_xritag;
7950 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
7951 numBdes = icmd->un.genreq64.bdl.bdeSize /
7952 sizeof(struct ulp_bde64);
7953 /* The addrHigh and addrLow fields within the IOCB
7954 * have not been byteswapped yet so there is no
7955 * need to swap them back.
7957 if (piocbq->context3)
7958 dmabuf = (struct lpfc_dmabuf *)piocbq->context3;
7962 bpl = (struct ulp_bde64 *)dmabuf->virt;
7966 for (i = 0; i < numBdes; i++) {
7967 /* Should already be byte swapped. */
7968 sgl->addr_hi = bpl->addrHigh;
7969 sgl->addr_lo = bpl->addrLow;
7971 sgl->word2 = le32_to_cpu(sgl->word2);
7972 if ((i+1) == numBdes)
7973 bf_set(lpfc_sli4_sge_last, sgl, 1);
7975 bf_set(lpfc_sli4_sge_last, sgl, 0);
7976 /* swap the size field back to the cpu so we
7977 * can assign it to the sgl.
7979 bde.tus.w = le32_to_cpu(bpl->tus.w);
7980 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
7981 /* The offsets in the sgl need to be accumulated
7982 * separately for the request and reply lists.
7983 * The request is always first, the reply follows.
7985 if (piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) {
7986 /* add up the reply sg entries */
7987 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
7989 /* first inbound? reset the offset */
7992 bf_set(lpfc_sli4_sge_offset, sgl, offset);
7993 bf_set(lpfc_sli4_sge_type, sgl,
7994 LPFC_SGE_TYPE_DATA);
7995 offset += bde.tus.f.bdeSize;
7997 sgl->word2 = cpu_to_le32(sgl->word2);
8001 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
8002 /* The addrHigh and addrLow fields of the BDE have not
8003 * been byteswapped yet so they need to be swapped
8004 * before putting them in the sgl.
8007 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
8009 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
8010 sgl->word2 = le32_to_cpu(sgl->word2);
8011 bf_set(lpfc_sli4_sge_last, sgl, 1);
8012 sgl->word2 = cpu_to_le32(sgl->word2);
8014 cpu_to_le32(icmd->un.genreq64.bdl.bdeSize);
8016 return sglq->sli4_xritag;
8020 * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution
8021 * @phba: Pointer to HBA context object.
8023 * This routine performs a roundrobin SCSI command to SLI4 FCP WQ index
8024 * distribution. This is called by __lpfc_sli_issue_iocb_s4() with the hbalock
8027 * Return: index into SLI4 fast-path FCP queue index.
8029 static inline uint32_t
8030 lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba)
8032 struct lpfc_vector_map_info *cpup;
8035 if (phba->cfg_fcp_io_sched == LPFC_FCP_SCHED_BY_CPU
8036 && phba->cfg_fcp_io_channel > 1) {
8037 cpu = smp_processor_id();
8038 if (cpu < phba->sli4_hba.num_present_cpu) {
8039 cpup = phba->sli4_hba.cpu_map;
8041 return cpup->channel_id;
8045 chann = atomic_add_return(1, &phba->fcp_qidx);
8046 chann = (chann % phba->cfg_fcp_io_channel);
8051 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
8052 * @phba: Pointer to HBA context object.
8053 * @piocb: Pointer to command iocb.
8054 * @wqe: Pointer to the work queue entry.
8056 * This routine converts the iocb command to its Work Queue Entry
8057 * equivalent. The wqe pointer should not have any fields set when
8058 * this routine is called because it will memcpy over them.
8059 * This routine does not set the CQ_ID or the WQEC bits in the
8062 * Returns: 0 = Success, IOCB_ERROR = Failure.
8065 lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
8066 union lpfc_wqe *wqe)
8068 uint32_t xmit_len = 0, total_len = 0;
8072 uint8_t command_type = ELS_COMMAND_NON_FIP;
8075 uint16_t abrt_iotag;
8076 struct lpfc_iocbq *abrtiocbq;
8077 struct ulp_bde64 *bpl = NULL;
8078 uint32_t els_id = LPFC_ELS_ID_DEFAULT;
8080 struct ulp_bde64 bde;
8081 struct lpfc_nodelist *ndlp;
8085 fip = phba->hba_flag & HBA_FIP_SUPPORT;
8086 /* The fcp commands will set command type */
8087 if (iocbq->iocb_flag & LPFC_IO_FCP)
8088 command_type = FCP_COMMAND;
8089 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
8090 command_type = ELS_COMMAND_FIP;
8092 command_type = ELS_COMMAND_NON_FIP;
8094 /* Some of the fields are in the right position already */
8095 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
8096 abort_tag = (uint32_t) iocbq->iotag;
8097 xritag = iocbq->sli4_xritag;
8098 wqe->generic.wqe_com.word7 = 0; /* The ct field has moved so reset */
8099 /* words0-2 bpl convert bde */
8100 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
8101 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
8102 sizeof(struct ulp_bde64);
8103 bpl = (struct ulp_bde64 *)
8104 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
8108 /* Should already be byte swapped. */
8109 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
8110 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
8111 /* swap the size field back to the cpu so we
8112 * can assign it to the sgl.
8114 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
8115 xmit_len = wqe->generic.bde.tus.f.bdeSize;
8117 for (i = 0; i < numBdes; i++) {
8118 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
8119 total_len += bde.tus.f.bdeSize;
8122 xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
8124 iocbq->iocb.ulpIoTag = iocbq->iotag;
8125 cmnd = iocbq->iocb.ulpCommand;
8127 switch (iocbq->iocb.ulpCommand) {
8128 case CMD_ELS_REQUEST64_CR:
8129 if (iocbq->iocb_flag & LPFC_IO_LIBDFC)
8130 ndlp = iocbq->context_un.ndlp;
8132 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8133 if (!iocbq->iocb.ulpLe) {
8134 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8135 "2007 Only Limited Edition cmd Format"
8136 " supported 0x%x\n",
8137 iocbq->iocb.ulpCommand);
8141 wqe->els_req.payload_len = xmit_len;
8142 /* Els_reguest64 has a TMO */
8143 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
8144 iocbq->iocb.ulpTimeout);
8145 /* Need a VF for word 4 set the vf bit*/
8146 bf_set(els_req64_vf, &wqe->els_req, 0);
8147 /* And a VFID for word 12 */
8148 bf_set(els_req64_vfid, &wqe->els_req, 0);
8149 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
8150 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8151 iocbq->iocb.ulpContext);
8152 bf_set(wqe_ct, &wqe->els_req.wqe_com, ct);
8153 bf_set(wqe_pu, &wqe->els_req.wqe_com, 0);
8154 /* CCP CCPE PV PRI in word10 were set in the memcpy */
8155 if (command_type == ELS_COMMAND_FIP)
8156 els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
8157 >> LPFC_FIP_ELS_ID_SHIFT);
8158 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
8159 iocbq->context2)->virt);
8160 if_type = bf_get(lpfc_sli_intf_if_type,
8161 &phba->sli4_hba.sli_intf);
8162 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8163 if (pcmd && (*pcmd == ELS_CMD_FLOGI ||
8164 *pcmd == ELS_CMD_SCR ||
8165 *pcmd == ELS_CMD_FDISC ||
8166 *pcmd == ELS_CMD_LOGO ||
8167 *pcmd == ELS_CMD_PLOGI)) {
8168 bf_set(els_req64_sp, &wqe->els_req, 1);
8169 bf_set(els_req64_sid, &wqe->els_req,
8170 iocbq->vport->fc_myDID);
8171 if ((*pcmd == ELS_CMD_FLOGI) &&
8172 !(phba->fc_topology ==
8173 LPFC_TOPOLOGY_LOOP))
8174 bf_set(els_req64_sid, &wqe->els_req, 0);
8175 bf_set(wqe_ct, &wqe->els_req.wqe_com, 1);
8176 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8177 phba->vpi_ids[iocbq->vport->vpi]);
8178 } else if (pcmd && iocbq->context1) {
8179 bf_set(wqe_ct, &wqe->els_req.wqe_com, 0);
8180 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8181 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8184 bf_set(wqe_temp_rpi, &wqe->els_req.wqe_com,
8185 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8186 bf_set(wqe_els_id, &wqe->els_req.wqe_com, els_id);
8187 bf_set(wqe_dbde, &wqe->els_req.wqe_com, 1);
8188 bf_set(wqe_iod, &wqe->els_req.wqe_com, LPFC_WQE_IOD_READ);
8189 bf_set(wqe_qosd, &wqe->els_req.wqe_com, 1);
8190 bf_set(wqe_lenloc, &wqe->els_req.wqe_com, LPFC_WQE_LENLOC_NONE);
8191 bf_set(wqe_ebde_cnt, &wqe->els_req.wqe_com, 0);
8192 wqe->els_req.max_response_payload_len = total_len - xmit_len;
8194 case CMD_XMIT_SEQUENCE64_CX:
8195 bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com,
8196 iocbq->iocb.un.ulpWord[3]);
8197 bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com,
8198 iocbq->iocb.unsli3.rcvsli3.ox_id);
8199 /* The entire sequence is transmitted for this IOCB */
8200 xmit_len = total_len;
8201 cmnd = CMD_XMIT_SEQUENCE64_CR;
8202 if (phba->link_flag & LS_LOOPBACK_MODE)
8203 bf_set(wqe_xo, &wqe->xmit_sequence.wge_ctl, 1);
8204 case CMD_XMIT_SEQUENCE64_CR:
8205 /* word3 iocb=io_tag32 wqe=reserved */
8206 wqe->xmit_sequence.rsvd3 = 0;
8207 /* word4 relative_offset memcpy */
8208 /* word5 r_ctl/df_ctl memcpy */
8209 bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0);
8210 bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1);
8211 bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com,
8212 LPFC_WQE_IOD_WRITE);
8213 bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com,
8214 LPFC_WQE_LENLOC_WORD12);
8215 bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0);
8216 wqe->xmit_sequence.xmit_len = xmit_len;
8217 command_type = OTHER_COMMAND;
8219 case CMD_XMIT_BCAST64_CN:
8220 /* word3 iocb=iotag32 wqe=seq_payload_len */
8221 wqe->xmit_bcast64.seq_payload_len = xmit_len;
8222 /* word4 iocb=rsvd wqe=rsvd */
8223 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
8224 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
8225 bf_set(wqe_ct, &wqe->xmit_bcast64.wqe_com,
8226 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8227 bf_set(wqe_dbde, &wqe->xmit_bcast64.wqe_com, 1);
8228 bf_set(wqe_iod, &wqe->xmit_bcast64.wqe_com, LPFC_WQE_IOD_WRITE);
8229 bf_set(wqe_lenloc, &wqe->xmit_bcast64.wqe_com,
8230 LPFC_WQE_LENLOC_WORD3);
8231 bf_set(wqe_ebde_cnt, &wqe->xmit_bcast64.wqe_com, 0);
8233 case CMD_FCP_IWRITE64_CR:
8234 command_type = FCP_COMMAND_DATA_OUT;
8235 /* word3 iocb=iotag wqe=payload_offset_len */
8236 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8237 bf_set(payload_offset_len, &wqe->fcp_iwrite,
8238 xmit_len + sizeof(struct fcp_rsp));
8239 bf_set(cmd_buff_len, &wqe->fcp_iwrite,
8241 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8242 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8243 bf_set(wqe_erp, &wqe->fcp_iwrite.wqe_com,
8244 iocbq->iocb.ulpFCP2Rcvy);
8245 bf_set(wqe_lnk, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpXS);
8246 /* Always open the exchange */
8247 bf_set(wqe_xc, &wqe->fcp_iwrite.wqe_com, 0);
8248 bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE);
8249 bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com,
8250 LPFC_WQE_LENLOC_WORD4);
8251 bf_set(wqe_ebde_cnt, &wqe->fcp_iwrite.wqe_com, 0);
8252 bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpPU);
8253 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 1);
8255 case CMD_FCP_IREAD64_CR:
8256 /* word3 iocb=iotag wqe=payload_offset_len */
8257 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8258 bf_set(payload_offset_len, &wqe->fcp_iread,
8259 xmit_len + sizeof(struct fcp_rsp));
8260 bf_set(cmd_buff_len, &wqe->fcp_iread,
8262 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8263 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8264 bf_set(wqe_erp, &wqe->fcp_iread.wqe_com,
8265 iocbq->iocb.ulpFCP2Rcvy);
8266 bf_set(wqe_lnk, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpXS);
8267 /* Always open the exchange */
8268 bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
8269 bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ);
8270 bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com,
8271 LPFC_WQE_LENLOC_WORD4);
8272 bf_set(wqe_ebde_cnt, &wqe->fcp_iread.wqe_com, 0);
8273 bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpPU);
8274 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 1);
8276 case CMD_FCP_ICMND64_CR:
8277 /* word3 iocb=iotag wqe=payload_offset_len */
8278 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8279 bf_set(payload_offset_len, &wqe->fcp_icmd,
8280 xmit_len + sizeof(struct fcp_rsp));
8281 bf_set(cmd_buff_len, &wqe->fcp_icmd,
8283 /* word3 iocb=IO_TAG wqe=reserved */
8284 bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0);
8285 /* Always open the exchange */
8286 bf_set(wqe_xc, &wqe->fcp_icmd.wqe_com, 0);
8287 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 1);
8288 bf_set(wqe_iod, &wqe->fcp_icmd.wqe_com, LPFC_WQE_IOD_WRITE);
8289 bf_set(wqe_qosd, &wqe->fcp_icmd.wqe_com, 1);
8290 bf_set(wqe_lenloc, &wqe->fcp_icmd.wqe_com,
8291 LPFC_WQE_LENLOC_NONE);
8292 bf_set(wqe_ebde_cnt, &wqe->fcp_icmd.wqe_com, 0);
8293 bf_set(wqe_erp, &wqe->fcp_icmd.wqe_com,
8294 iocbq->iocb.ulpFCP2Rcvy);
8296 case CMD_GEN_REQUEST64_CR:
8297 /* For this command calculate the xmit length of the
8301 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
8302 sizeof(struct ulp_bde64);
8303 for (i = 0; i < numBdes; i++) {
8304 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
8305 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
8307 xmit_len += bde.tus.f.bdeSize;
8309 /* word3 iocb=IO_TAG wqe=request_payload_len */
8310 wqe->gen_req.request_payload_len = xmit_len;
8311 /* word4 iocb=parameter wqe=relative_offset memcpy */
8312 /* word5 [rctl, type, df_ctl, la] copied in memcpy */
8313 /* word6 context tag copied in memcpy */
8314 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
8315 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
8316 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8317 "2015 Invalid CT %x command 0x%x\n",
8318 ct, iocbq->iocb.ulpCommand);
8321 bf_set(wqe_ct, &wqe->gen_req.wqe_com, 0);
8322 bf_set(wqe_tmo, &wqe->gen_req.wqe_com, iocbq->iocb.ulpTimeout);
8323 bf_set(wqe_pu, &wqe->gen_req.wqe_com, iocbq->iocb.ulpPU);
8324 bf_set(wqe_dbde, &wqe->gen_req.wqe_com, 1);
8325 bf_set(wqe_iod, &wqe->gen_req.wqe_com, LPFC_WQE_IOD_READ);
8326 bf_set(wqe_qosd, &wqe->gen_req.wqe_com, 1);
8327 bf_set(wqe_lenloc, &wqe->gen_req.wqe_com, LPFC_WQE_LENLOC_NONE);
8328 bf_set(wqe_ebde_cnt, &wqe->gen_req.wqe_com, 0);
8329 wqe->gen_req.max_response_payload_len = total_len - xmit_len;
8330 command_type = OTHER_COMMAND;
8332 case CMD_XMIT_ELS_RSP64_CX:
8333 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8334 /* words0-2 BDE memcpy */
8335 /* word3 iocb=iotag32 wqe=response_payload_len */
8336 wqe->xmit_els_rsp.response_payload_len = xmit_len;
8338 wqe->xmit_els_rsp.word4 = 0;
8339 /* word5 iocb=rsvd wge=did */
8340 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
8341 iocbq->iocb.un.xseq64.xmit_els_remoteID);
8343 if_type = bf_get(lpfc_sli_intf_if_type,
8344 &phba->sli4_hba.sli_intf);
8345 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8346 if (iocbq->vport->fc_flag & FC_PT2PT) {
8347 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
8348 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
8349 iocbq->vport->fc_myDID);
8350 if (iocbq->vport->fc_myDID == Fabric_DID) {
8352 &wqe->xmit_els_rsp.wqe_dest, 0);
8356 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com,
8357 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8358 bf_set(wqe_pu, &wqe->xmit_els_rsp.wqe_com, iocbq->iocb.ulpPU);
8359 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
8360 iocbq->iocb.unsli3.rcvsli3.ox_id);
8361 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
8362 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
8363 phba->vpi_ids[iocbq->vport->vpi]);
8364 bf_set(wqe_dbde, &wqe->xmit_els_rsp.wqe_com, 1);
8365 bf_set(wqe_iod, &wqe->xmit_els_rsp.wqe_com, LPFC_WQE_IOD_WRITE);
8366 bf_set(wqe_qosd, &wqe->xmit_els_rsp.wqe_com, 1);
8367 bf_set(wqe_lenloc, &wqe->xmit_els_rsp.wqe_com,
8368 LPFC_WQE_LENLOC_WORD3);
8369 bf_set(wqe_ebde_cnt, &wqe->xmit_els_rsp.wqe_com, 0);
8370 bf_set(wqe_rsp_temp_rpi, &wqe->xmit_els_rsp,
8371 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8372 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
8373 iocbq->context2)->virt);
8374 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
8375 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
8376 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
8377 iocbq->vport->fc_myDID);
8378 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com, 1);
8379 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
8380 phba->vpi_ids[phba->pport->vpi]);
8382 command_type = OTHER_COMMAND;
8384 case CMD_CLOSE_XRI_CN:
8385 case CMD_ABORT_XRI_CN:
8386 case CMD_ABORT_XRI_CX:
8387 /* words 0-2 memcpy should be 0 rserved */
8388 /* port will send abts */
8389 abrt_iotag = iocbq->iocb.un.acxri.abortContextTag;
8390 if (abrt_iotag != 0 && abrt_iotag <= phba->sli.last_iotag) {
8391 abrtiocbq = phba->sli.iocbq_lookup[abrt_iotag];
8392 fip = abrtiocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK;
8396 if ((iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN) || fip)
8398 * The link is down, or the command was ELS_FIP
8399 * so the fw does not need to send abts
8402 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
8404 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
8405 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
8406 /* word5 iocb=CONTEXT_TAG|IO_TAG wqe=reserved */
8407 wqe->abort_cmd.rsrvd5 = 0;
8408 bf_set(wqe_ct, &wqe->abort_cmd.wqe_com,
8409 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8410 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
8412 * The abort handler will send us CMD_ABORT_XRI_CN or
8413 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
8415 bf_set(wqe_cmnd, &wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
8416 bf_set(wqe_qosd, &wqe->abort_cmd.wqe_com, 1);
8417 bf_set(wqe_lenloc, &wqe->abort_cmd.wqe_com,
8418 LPFC_WQE_LENLOC_NONE);
8419 cmnd = CMD_ABORT_XRI_CX;
8420 command_type = OTHER_COMMAND;
8423 case CMD_XMIT_BLS_RSP64_CX:
8424 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8425 /* As BLS ABTS RSP WQE is very different from other WQEs,
8426 * we re-construct this WQE here based on information in
8427 * iocbq from scratch.
8429 memset(wqe, 0, sizeof(union lpfc_wqe));
8430 /* OX_ID is invariable to who sent ABTS to CT exchange */
8431 bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
8432 bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_rsp));
8433 if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_rsp) ==
8434 LPFC_ABTS_UNSOL_INT) {
8435 /* ABTS sent by initiator to CT exchange, the
8436 * RX_ID field will be filled with the newly
8437 * allocated responder XRI.
8439 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
8440 iocbq->sli4_xritag);
8442 /* ABTS sent by responder to CT exchange, the
8443 * RX_ID field will be filled with the responder
8446 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
8447 bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_rsp));
8449 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
8450 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
8453 bf_set(wqe_els_did, &wqe->xmit_bls_rsp.wqe_dest,
8455 bf_set(xmit_bls_rsp64_temprpi, &wqe->xmit_bls_rsp,
8456 iocbq->iocb.ulpContext);
8457 bf_set(wqe_ct, &wqe->xmit_bls_rsp.wqe_com, 1);
8458 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
8459 phba->vpi_ids[phba->pport->vpi]);
8460 bf_set(wqe_qosd, &wqe->xmit_bls_rsp.wqe_com, 1);
8461 bf_set(wqe_lenloc, &wqe->xmit_bls_rsp.wqe_com,
8462 LPFC_WQE_LENLOC_NONE);
8463 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
8464 command_type = OTHER_COMMAND;
8465 if (iocbq->iocb.un.xseq64.w5.hcsw.Rctl == FC_RCTL_BA_RJT) {
8466 bf_set(xmit_bls_rsp64_rjt_vspec, &wqe->xmit_bls_rsp,
8467 bf_get(lpfc_vndr_code, &iocbq->iocb.un.bls_rsp));
8468 bf_set(xmit_bls_rsp64_rjt_expc, &wqe->xmit_bls_rsp,
8469 bf_get(lpfc_rsn_expln, &iocbq->iocb.un.bls_rsp));
8470 bf_set(xmit_bls_rsp64_rjt_rsnc, &wqe->xmit_bls_rsp,
8471 bf_get(lpfc_rsn_code, &iocbq->iocb.un.bls_rsp));
8475 case CMD_XRI_ABORTED_CX:
8476 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
8477 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
8478 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
8479 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
8480 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
8482 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8483 "2014 Invalid command 0x%x\n",
8484 iocbq->iocb.ulpCommand);
8489 if (iocbq->iocb_flag & LPFC_IO_DIF_PASS)
8490 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_PASSTHRU);
8491 else if (iocbq->iocb_flag & LPFC_IO_DIF_STRIP)
8492 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_STRIP);
8493 else if (iocbq->iocb_flag & LPFC_IO_DIF_INSERT)
8494 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_INSERT);
8495 iocbq->iocb_flag &= ~(LPFC_IO_DIF_PASS | LPFC_IO_DIF_STRIP |
8496 LPFC_IO_DIF_INSERT);
8497 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
8498 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
8499 wqe->generic.wqe_com.abort_tag = abort_tag;
8500 bf_set(wqe_cmd_type, &wqe->generic.wqe_com, command_type);
8501 bf_set(wqe_cmnd, &wqe->generic.wqe_com, cmnd);
8502 bf_set(wqe_class, &wqe->generic.wqe_com, iocbq->iocb.ulpClass);
8503 bf_set(wqe_cqid, &wqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
8508 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
8509 * @phba: Pointer to HBA context object.
8510 * @ring_number: SLI ring number to issue iocb on.
8511 * @piocb: Pointer to command iocb.
8512 * @flag: Flag indicating if this command can be put into txq.
8514 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
8515 * an iocb command to an HBA with SLI-4 interface spec.
8517 * This function is called with hbalock held. The function will return success
8518 * after it successfully submit the iocb to firmware or after adding to the
8522 __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
8523 struct lpfc_iocbq *piocb, uint32_t flag)
8525 struct lpfc_sglq *sglq;
8527 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
8529 if (piocb->sli4_xritag == NO_XRI) {
8530 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
8531 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
8534 if (!list_empty(&pring->txq)) {
8535 if (!(flag & SLI_IOCB_RET_IOCB)) {
8536 __lpfc_sli_ringtx_put(phba,
8538 return IOCB_SUCCESS;
8543 sglq = __lpfc_sli_get_sglq(phba, piocb);
8545 if (!(flag & SLI_IOCB_RET_IOCB)) {
8546 __lpfc_sli_ringtx_put(phba,
8549 return IOCB_SUCCESS;
8555 } else if (piocb->iocb_flag & LPFC_IO_FCP) {
8556 /* These IO's already have an XRI and a mapped sgl. */
8560 * This is a continuation of a commandi,(CX) so this
8561 * sglq is on the active list
8563 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_lxritag);
8569 piocb->sli4_lxritag = sglq->sli4_lxritag;
8570 piocb->sli4_xritag = sglq->sli4_xritag;
8571 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocb, sglq))
8575 if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe))
8578 if ((piocb->iocb_flag & LPFC_IO_FCP) ||
8579 (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
8580 if (unlikely(!phba->sli4_hba.fcp_wq))
8582 if (lpfc_sli4_wq_put(phba->sli4_hba.fcp_wq[piocb->fcp_wqidx],
8586 if (unlikely(!phba->sli4_hba.els_wq))
8588 if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
8591 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
8597 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
8599 * This routine wraps the actual lockless version for issusing IOCB function
8600 * pointer from the lpfc_hba struct.
8603 * IOCB_ERROR - Error
8604 * IOCB_SUCCESS - Success
8608 __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
8609 struct lpfc_iocbq *piocb, uint32_t flag)
8611 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
8615 * lpfc_sli_api_table_setup - Set up sli api function jump table
8616 * @phba: The hba struct for which this call is being executed.
8617 * @dev_grp: The HBA PCI-Device group number.
8619 * This routine sets up the SLI interface API function jump table in @phba
8621 * Returns: 0 - success, -ENODEV - failure.
8624 lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
8628 case LPFC_PCI_DEV_LP:
8629 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
8630 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
8632 case LPFC_PCI_DEV_OC:
8633 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
8634 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
8637 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8638 "1419 Invalid HBA PCI-device group: 0x%x\n",
8643 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
8648 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
8649 * @phba: Pointer to HBA context object.
8650 * @pring: Pointer to driver SLI ring object.
8651 * @piocb: Pointer to command iocb.
8652 * @flag: Flag indicating if this command can be put into txq.
8654 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
8655 * function. This function gets the hbalock and calls
8656 * __lpfc_sli_issue_iocb function and will return the error returned
8657 * by __lpfc_sli_issue_iocb function. This wrapper is used by
8658 * functions which do not hold hbalock.
8661 lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
8662 struct lpfc_iocbq *piocb, uint32_t flag)
8664 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
8665 struct lpfc_sli_ring *pring;
8666 struct lpfc_queue *fpeq;
8667 struct lpfc_eqe *eqe;
8668 unsigned long iflags;
8671 if (phba->sli_rev == LPFC_SLI_REV4) {
8672 if (piocb->iocb_flag & LPFC_IO_FCP) {
8673 if (unlikely(!phba->sli4_hba.fcp_wq))
8675 idx = lpfc_sli4_scmd_to_wqidx_distr(phba);
8676 piocb->fcp_wqidx = idx;
8677 ring_number = MAX_SLI3_CONFIGURED_RINGS + idx;
8679 pring = &phba->sli.ring[ring_number];
8680 spin_lock_irqsave(&pring->ring_lock, iflags);
8681 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb,
8683 spin_unlock_irqrestore(&pring->ring_lock, iflags);
8685 if (lpfc_fcp_look_ahead) {
8686 fcp_eq_hdl = &phba->sli4_hba.fcp_eq_hdl[idx];
8688 if (atomic_dec_and_test(&fcp_eq_hdl->
8691 /* Get associated EQ with this index */
8692 fpeq = phba->sli4_hba.hba_eq[idx];
8694 /* Turn off interrupts from this EQ */
8695 lpfc_sli4_eq_clr_intr(fpeq);
8698 * Process all the events on FCP EQ
8700 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
8701 lpfc_sli4_hba_handle_eqe(phba,
8703 fpeq->EQ_processed++;
8706 /* Always clear and re-arm the EQ */
8707 lpfc_sli4_eq_release(fpeq,
8710 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
8713 pring = &phba->sli.ring[ring_number];
8714 spin_lock_irqsave(&pring->ring_lock, iflags);
8715 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb,
8717 spin_unlock_irqrestore(&pring->ring_lock, iflags);
8721 /* For now, SLI2/3 will still use hbalock */
8722 spin_lock_irqsave(&phba->hbalock, iflags);
8723 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
8724 spin_unlock_irqrestore(&phba->hbalock, iflags);
8730 * lpfc_extra_ring_setup - Extra ring setup function
8731 * @phba: Pointer to HBA context object.
8733 * This function is called while driver attaches with the
8734 * HBA to setup the extra ring. The extra ring is used
8735 * only when driver needs to support target mode functionality
8736 * or IP over FC functionalities.
8738 * This function is called with no lock held.
8741 lpfc_extra_ring_setup( struct lpfc_hba *phba)
8743 struct lpfc_sli *psli;
8744 struct lpfc_sli_ring *pring;
8748 /* Adjust cmd/rsp ring iocb entries more evenly */
8750 /* Take some away from the FCP ring */
8751 pring = &psli->ring[psli->fcp_ring];
8752 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8753 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8754 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8755 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
8757 /* and give them to the extra ring */
8758 pring = &psli->ring[psli->extra_ring];
8760 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8761 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8762 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8763 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
8765 /* Setup default profile for this ring */
8766 pring->iotag_max = 4096;
8767 pring->num_mask = 1;
8768 pring->prt[0].profile = 0; /* Mask 0 */
8769 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
8770 pring->prt[0].type = phba->cfg_multi_ring_type;
8771 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
8775 /* lpfc_sli_abts_err_handler - handle a failed ABTS request from an SLI3 port.
8776 * @phba: Pointer to HBA context object.
8777 * @iocbq: Pointer to iocb object.
8779 * The async_event handler calls this routine when it receives
8780 * an ASYNC_STATUS_CN event from the port. The port generates
8781 * this event when an Abort Sequence request to an rport fails
8782 * twice in succession. The abort could be originated by the
8783 * driver or by the port. The ABTS could have been for an ELS
8784 * or FCP IO. The port only generates this event when an ABTS
8785 * fails to complete after one retry.
8788 lpfc_sli_abts_err_handler(struct lpfc_hba *phba,
8789 struct lpfc_iocbq *iocbq)
8791 struct lpfc_nodelist *ndlp = NULL;
8792 uint16_t rpi = 0, vpi = 0;
8793 struct lpfc_vport *vport = NULL;
8795 /* The rpi in the ulpContext is vport-sensitive. */
8796 vpi = iocbq->iocb.un.asyncstat.sub_ctxt_tag;
8797 rpi = iocbq->iocb.ulpContext;
8799 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8800 "3092 Port generated ABTS async event "
8801 "on vpi %d rpi %d status 0x%x\n",
8802 vpi, rpi, iocbq->iocb.ulpStatus);
8804 vport = lpfc_find_vport_by_vpid(phba, vpi);
8807 ndlp = lpfc_findnode_rpi(vport, rpi);
8808 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
8811 if (iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT)
8812 lpfc_sli_abts_recover_port(vport, ndlp);
8816 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8817 "3095 Event Context not found, no "
8818 "action on vpi %d rpi %d status 0x%x, reason 0x%x\n",
8819 iocbq->iocb.ulpContext, iocbq->iocb.ulpStatus,
8823 /* lpfc_sli4_abts_err_handler - handle a failed ABTS request from an SLI4 port.
8824 * @phba: pointer to HBA context object.
8825 * @ndlp: nodelist pointer for the impacted rport.
8826 * @axri: pointer to the wcqe containing the failed exchange.
8828 * The driver calls this routine when it receives an ABORT_XRI_FCP CQE from the
8829 * port. The port generates this event when an abort exchange request to an
8830 * rport fails twice in succession with no reply. The abort could be originated
8831 * by the driver or by the port. The ABTS could have been for an ELS or FCP IO.
8834 lpfc_sli4_abts_err_handler(struct lpfc_hba *phba,
8835 struct lpfc_nodelist *ndlp,
8836 struct sli4_wcqe_xri_aborted *axri)
8838 struct lpfc_vport *vport;
8839 uint32_t ext_status = 0;
8841 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
8842 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8843 "3115 Node Context not found, driver "
8844 "ignoring abts err event\n");
8848 vport = ndlp->vport;
8849 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8850 "3116 Port generated FCP XRI ABORT event on "
8851 "vpi %d rpi %d xri x%x status 0x%x parameter x%x\n",
8852 ndlp->vport->vpi, phba->sli4_hba.rpi_ids[ndlp->nlp_rpi],
8853 bf_get(lpfc_wcqe_xa_xri, axri),
8854 bf_get(lpfc_wcqe_xa_status, axri),
8858 * Catch the ABTS protocol failure case. Older OCe FW releases returned
8859 * LOCAL_REJECT and 0 for a failed ABTS exchange and later OCe and
8860 * LPe FW releases returned LOCAL_REJECT and SEQUENCE_TIMEOUT.
8862 ext_status = axri->parameter & IOERR_PARAM_MASK;
8863 if ((bf_get(lpfc_wcqe_xa_status, axri) == IOSTAT_LOCAL_REJECT) &&
8864 ((ext_status == IOERR_SEQUENCE_TIMEOUT) || (ext_status == 0)))
8865 lpfc_sli_abts_recover_port(vport, ndlp);
8869 * lpfc_sli_async_event_handler - ASYNC iocb handler function
8870 * @phba: Pointer to HBA context object.
8871 * @pring: Pointer to driver SLI ring object.
8872 * @iocbq: Pointer to iocb object.
8874 * This function is called by the slow ring event handler
8875 * function when there is an ASYNC event iocb in the ring.
8876 * This function is called with no lock held.
8877 * Currently this function handles only temperature related
8878 * ASYNC events. The function decodes the temperature sensor
8879 * event message and posts events for the management applications.
8882 lpfc_sli_async_event_handler(struct lpfc_hba * phba,
8883 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
8887 struct temp_event temp_event_data;
8888 struct Scsi_Host *shost;
8891 icmd = &iocbq->iocb;
8892 evt_code = icmd->un.asyncstat.evt_code;
8895 case ASYNC_TEMP_WARN:
8896 case ASYNC_TEMP_SAFE:
8897 temp_event_data.data = (uint32_t) icmd->ulpContext;
8898 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
8899 if (evt_code == ASYNC_TEMP_WARN) {
8900 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
8901 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
8902 "0347 Adapter is very hot, please take "
8903 "corrective action. temperature : %d Celsius\n",
8904 (uint32_t) icmd->ulpContext);
8906 temp_event_data.event_code = LPFC_NORMAL_TEMP;
8907 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
8908 "0340 Adapter temperature is OK now. "
8909 "temperature : %d Celsius\n",
8910 (uint32_t) icmd->ulpContext);
8913 /* Send temperature change event to applications */
8914 shost = lpfc_shost_from_vport(phba->pport);
8915 fc_host_post_vendor_event(shost, fc_get_event_number(),
8916 sizeof(temp_event_data), (char *) &temp_event_data,
8919 case ASYNC_STATUS_CN:
8920 lpfc_sli_abts_err_handler(phba, iocbq);
8923 iocb_w = (uint32_t *) icmd;
8924 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8925 "0346 Ring %d handler: unexpected ASYNC_STATUS"
8927 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
8928 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
8929 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
8930 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
8931 pring->ringno, icmd->un.asyncstat.evt_code,
8932 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
8933 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
8934 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
8935 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
8943 * lpfc_sli_setup - SLI ring setup function
8944 * @phba: Pointer to HBA context object.
8946 * lpfc_sli_setup sets up rings of the SLI interface with
8947 * number of iocbs per ring and iotags. This function is
8948 * called while driver attach to the HBA and before the
8949 * interrupts are enabled. So there is no need for locking.
8951 * This function always returns 0.
8954 lpfc_sli_setup(struct lpfc_hba *phba)
8956 int i, totiocbsize = 0;
8957 struct lpfc_sli *psli = &phba->sli;
8958 struct lpfc_sli_ring *pring;
8960 psli->num_rings = MAX_SLI3_CONFIGURED_RINGS;
8961 if (phba->sli_rev == LPFC_SLI_REV4)
8962 psli->num_rings += phba->cfg_fcp_io_channel;
8964 psli->fcp_ring = LPFC_FCP_RING;
8965 psli->next_ring = LPFC_FCP_NEXT_RING;
8966 psli->extra_ring = LPFC_EXTRA_RING;
8968 psli->iocbq_lookup = NULL;
8969 psli->iocbq_lookup_len = 0;
8970 psli->last_iotag = 0;
8972 for (i = 0; i < psli->num_rings; i++) {
8973 pring = &psli->ring[i];
8975 case LPFC_FCP_RING: /* ring 0 - FCP */
8976 /* numCiocb and numRiocb are used in config_port */
8977 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
8978 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
8979 pring->sli.sli3.numCiocb +=
8980 SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8981 pring->sli.sli3.numRiocb +=
8982 SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8983 pring->sli.sli3.numCiocb +=
8984 SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8985 pring->sli.sli3.numRiocb +=
8986 SLI2_IOCB_RSP_R3XTRA_ENTRIES;
8987 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
8988 SLI3_IOCB_CMD_SIZE :
8990 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
8991 SLI3_IOCB_RSP_SIZE :
8993 pring->iotag_ctr = 0;
8995 (phba->cfg_hba_queue_depth * 2);
8996 pring->fast_iotag = pring->iotag_max;
8997 pring->num_mask = 0;
8999 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
9000 /* numCiocb and numRiocb are used in config_port */
9001 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
9002 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
9003 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
9004 SLI3_IOCB_CMD_SIZE :
9006 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
9007 SLI3_IOCB_RSP_SIZE :
9009 pring->iotag_max = phba->cfg_hba_queue_depth;
9010 pring->num_mask = 0;
9012 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
9013 /* numCiocb and numRiocb are used in config_port */
9014 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
9015 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
9016 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
9017 SLI3_IOCB_CMD_SIZE :
9019 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
9020 SLI3_IOCB_RSP_SIZE :
9022 pring->fast_iotag = 0;
9023 pring->iotag_ctr = 0;
9024 pring->iotag_max = 4096;
9025 pring->lpfc_sli_rcv_async_status =
9026 lpfc_sli_async_event_handler;
9027 pring->num_mask = LPFC_MAX_RING_MASK;
9028 pring->prt[0].profile = 0; /* Mask 0 */
9029 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
9030 pring->prt[0].type = FC_TYPE_ELS;
9031 pring->prt[0].lpfc_sli_rcv_unsol_event =
9032 lpfc_els_unsol_event;
9033 pring->prt[1].profile = 0; /* Mask 1 */
9034 pring->prt[1].rctl = FC_RCTL_ELS_REP;
9035 pring->prt[1].type = FC_TYPE_ELS;
9036 pring->prt[1].lpfc_sli_rcv_unsol_event =
9037 lpfc_els_unsol_event;
9038 pring->prt[2].profile = 0; /* Mask 2 */
9039 /* NameServer Inquiry */
9040 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
9042 pring->prt[2].type = FC_TYPE_CT;
9043 pring->prt[2].lpfc_sli_rcv_unsol_event =
9044 lpfc_ct_unsol_event;
9045 pring->prt[3].profile = 0; /* Mask 3 */
9046 /* NameServer response */
9047 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
9049 pring->prt[3].type = FC_TYPE_CT;
9050 pring->prt[3].lpfc_sli_rcv_unsol_event =
9051 lpfc_ct_unsol_event;
9054 totiocbsize += (pring->sli.sli3.numCiocb *
9055 pring->sli.sli3.sizeCiocb) +
9056 (pring->sli.sli3.numRiocb * pring->sli.sli3.sizeRiocb);
9058 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
9059 /* Too many cmd / rsp ring entries in SLI2 SLIM */
9060 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
9061 "SLI2 SLIM Data: x%x x%lx\n",
9062 phba->brd_no, totiocbsize,
9063 (unsigned long) MAX_SLIM_IOCB_SIZE);
9065 if (phba->cfg_multi_ring_support == 2)
9066 lpfc_extra_ring_setup(phba);
9072 * lpfc_sli_queue_setup - Queue initialization function
9073 * @phba: Pointer to HBA context object.
9075 * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each
9076 * ring. This function also initializes ring indices of each ring.
9077 * This function is called during the initialization of the SLI
9078 * interface of an HBA.
9079 * This function is called with no lock held and always returns
9083 lpfc_sli_queue_setup(struct lpfc_hba *phba)
9085 struct lpfc_sli *psli;
9086 struct lpfc_sli_ring *pring;
9090 spin_lock_irq(&phba->hbalock);
9091 INIT_LIST_HEAD(&psli->mboxq);
9092 INIT_LIST_HEAD(&psli->mboxq_cmpl);
9093 /* Initialize list headers for txq and txcmplq as double linked lists */
9094 for (i = 0; i < psli->num_rings; i++) {
9095 pring = &psli->ring[i];
9097 pring->sli.sli3.next_cmdidx = 0;
9098 pring->sli.sli3.local_getidx = 0;
9099 pring->sli.sli3.cmdidx = 0;
9100 INIT_LIST_HEAD(&pring->txq);
9101 INIT_LIST_HEAD(&pring->txcmplq);
9102 INIT_LIST_HEAD(&pring->iocb_continueq);
9103 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
9104 INIT_LIST_HEAD(&pring->postbufq);
9105 spin_lock_init(&pring->ring_lock);
9107 spin_unlock_irq(&phba->hbalock);
9112 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
9113 * @phba: Pointer to HBA context object.
9115 * This routine flushes the mailbox command subsystem. It will unconditionally
9116 * flush all the mailbox commands in the three possible stages in the mailbox
9117 * command sub-system: pending mailbox command queue; the outstanding mailbox
9118 * command; and completed mailbox command queue. It is caller's responsibility
9119 * to make sure that the driver is in the proper state to flush the mailbox
9120 * command sub-system. Namely, the posting of mailbox commands into the
9121 * pending mailbox command queue from the various clients must be stopped;
9122 * either the HBA is in a state that it will never works on the outstanding
9123 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
9124 * mailbox command has been completed.
9127 lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
9129 LIST_HEAD(completions);
9130 struct lpfc_sli *psli = &phba->sli;
9132 unsigned long iflag;
9134 /* Flush all the mailbox commands in the mbox system */
9135 spin_lock_irqsave(&phba->hbalock, iflag);
9136 /* The pending mailbox command queue */
9137 list_splice_init(&phba->sli.mboxq, &completions);
9138 /* The outstanding active mailbox command */
9139 if (psli->mbox_active) {
9140 list_add_tail(&psli->mbox_active->list, &completions);
9141 psli->mbox_active = NULL;
9142 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9144 /* The completed mailbox command queue */
9145 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
9146 spin_unlock_irqrestore(&phba->hbalock, iflag);
9148 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
9149 while (!list_empty(&completions)) {
9150 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
9151 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
9153 pmb->mbox_cmpl(phba, pmb);
9158 * lpfc_sli_host_down - Vport cleanup function
9159 * @vport: Pointer to virtual port object.
9161 * lpfc_sli_host_down is called to clean up the resources
9162 * associated with a vport before destroying virtual
9163 * port data structures.
9164 * This function does following operations:
9165 * - Free discovery resources associated with this virtual
9167 * - Free iocbs associated with this virtual port in
9169 * - Send abort for all iocb commands associated with this
9172 * This function is called with no lock held and always returns 1.
9175 lpfc_sli_host_down(struct lpfc_vport *vport)
9177 LIST_HEAD(completions);
9178 struct lpfc_hba *phba = vport->phba;
9179 struct lpfc_sli *psli = &phba->sli;
9180 struct lpfc_sli_ring *pring;
9181 struct lpfc_iocbq *iocb, *next_iocb;
9183 unsigned long flags = 0;
9184 uint16_t prev_pring_flag;
9186 lpfc_cleanup_discovery_resources(vport);
9188 spin_lock_irqsave(&phba->hbalock, flags);
9189 for (i = 0; i < psli->num_rings; i++) {
9190 pring = &psli->ring[i];
9191 prev_pring_flag = pring->flag;
9192 /* Only slow rings */
9193 if (pring->ringno == LPFC_ELS_RING) {
9194 pring->flag |= LPFC_DEFERRED_RING_EVENT;
9195 /* Set the lpfc data pending flag */
9196 set_bit(LPFC_DATA_READY, &phba->data_flags);
9199 * Error everything on the txq since these iocbs have not been
9200 * given to the FW yet.
9202 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
9203 if (iocb->vport != vport)
9205 list_move_tail(&iocb->list, &completions);
9208 /* Next issue ABTS for everything on the txcmplq */
9209 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq,
9211 if (iocb->vport != vport)
9213 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
9216 pring->flag = prev_pring_flag;
9219 spin_unlock_irqrestore(&phba->hbalock, flags);
9221 /* Cancel all the IOCBs from the completions list */
9222 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9228 * lpfc_sli_hba_down - Resource cleanup function for the HBA
9229 * @phba: Pointer to HBA context object.
9231 * This function cleans up all iocb, buffers, mailbox commands
9232 * while shutting down the HBA. This function is called with no
9233 * lock held and always returns 1.
9234 * This function does the following to cleanup driver resources:
9235 * - Free discovery resources for each virtual port
9236 * - Cleanup any pending fabric iocbs
9237 * - Iterate through the iocb txq and free each entry
9239 * - Free up any buffer posted to the HBA
9240 * - Free mailbox commands in the mailbox queue.
9243 lpfc_sli_hba_down(struct lpfc_hba *phba)
9245 LIST_HEAD(completions);
9246 struct lpfc_sli *psli = &phba->sli;
9247 struct lpfc_sli_ring *pring;
9248 struct lpfc_dmabuf *buf_ptr;
9249 unsigned long flags = 0;
9252 /* Shutdown the mailbox command sub-system */
9253 lpfc_sli_mbox_sys_shutdown(phba, LPFC_MBX_WAIT);
9255 lpfc_hba_down_prep(phba);
9257 lpfc_fabric_abort_hba(phba);
9259 spin_lock_irqsave(&phba->hbalock, flags);
9260 for (i = 0; i < psli->num_rings; i++) {
9261 pring = &psli->ring[i];
9262 /* Only slow rings */
9263 if (pring->ringno == LPFC_ELS_RING) {
9264 pring->flag |= LPFC_DEFERRED_RING_EVENT;
9265 /* Set the lpfc data pending flag */
9266 set_bit(LPFC_DATA_READY, &phba->data_flags);
9270 * Error everything on the txq since these iocbs have not been
9271 * given to the FW yet.
9273 list_splice_init(&pring->txq, &completions);
9275 spin_unlock_irqrestore(&phba->hbalock, flags);
9277 /* Cancel all the IOCBs from the completions list */
9278 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9281 spin_lock_irqsave(&phba->hbalock, flags);
9282 list_splice_init(&phba->elsbuf, &completions);
9283 phba->elsbuf_cnt = 0;
9284 phba->elsbuf_prev_cnt = 0;
9285 spin_unlock_irqrestore(&phba->hbalock, flags);
9287 while (!list_empty(&completions)) {
9288 list_remove_head(&completions, buf_ptr,
9289 struct lpfc_dmabuf, list);
9290 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
9294 /* Return any active mbox cmds */
9295 del_timer_sync(&psli->mbox_tmo);
9297 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
9298 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
9299 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
9305 * lpfc_sli_pcimem_bcopy - SLI memory copy function
9306 * @srcp: Source memory pointer.
9307 * @destp: Destination memory pointer.
9308 * @cnt: Number of words required to be copied.
9310 * This function is used for copying data between driver memory
9311 * and the SLI memory. This function also changes the endianness
9312 * of each word if native endianness is different from SLI
9313 * endianness. This function can be called with or without
9317 lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
9319 uint32_t *src = srcp;
9320 uint32_t *dest = destp;
9324 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
9326 ldata = le32_to_cpu(ldata);
9335 * lpfc_sli_bemem_bcopy - SLI memory copy function
9336 * @srcp: Source memory pointer.
9337 * @destp: Destination memory pointer.
9338 * @cnt: Number of words required to be copied.
9340 * This function is used for copying data between a data structure
9341 * with big endian representation to local endianness.
9342 * This function can be called with or without lock.
9345 lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
9347 uint32_t *src = srcp;
9348 uint32_t *dest = destp;
9352 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
9354 ldata = be32_to_cpu(ldata);
9362 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
9363 * @phba: Pointer to HBA context object.
9364 * @pring: Pointer to driver SLI ring object.
9365 * @mp: Pointer to driver buffer object.
9367 * This function is called with no lock held.
9368 * It always return zero after adding the buffer to the postbufq
9372 lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9373 struct lpfc_dmabuf *mp)
9375 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
9377 spin_lock_irq(&phba->hbalock);
9378 list_add_tail(&mp->list, &pring->postbufq);
9379 pring->postbufq_cnt++;
9380 spin_unlock_irq(&phba->hbalock);
9385 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
9386 * @phba: Pointer to HBA context object.
9388 * When HBQ is enabled, buffers are searched based on tags. This function
9389 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
9390 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
9391 * does not conflict with tags of buffer posted for unsolicited events.
9392 * The function returns the allocated tag. The function is called with
9396 lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
9398 spin_lock_irq(&phba->hbalock);
9399 phba->buffer_tag_count++;
9401 * Always set the QUE_BUFTAG_BIT to distiguish between
9402 * a tag assigned by HBQ.
9404 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
9405 spin_unlock_irq(&phba->hbalock);
9406 return phba->buffer_tag_count;
9410 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
9411 * @phba: Pointer to HBA context object.
9412 * @pring: Pointer to driver SLI ring object.
9415 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
9416 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
9417 * iocb is posted to the response ring with the tag of the buffer.
9418 * This function searches the pring->postbufq list using the tag
9419 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
9420 * iocb. If the buffer is found then lpfc_dmabuf object of the
9421 * buffer is returned to the caller else NULL is returned.
9422 * This function is called with no lock held.
9424 struct lpfc_dmabuf *
9425 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9428 struct lpfc_dmabuf *mp, *next_mp;
9429 struct list_head *slp = &pring->postbufq;
9431 /* Search postbufq, from the beginning, looking for a match on tag */
9432 spin_lock_irq(&phba->hbalock);
9433 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
9434 if (mp->buffer_tag == tag) {
9435 list_del_init(&mp->list);
9436 pring->postbufq_cnt--;
9437 spin_unlock_irq(&phba->hbalock);
9442 spin_unlock_irq(&phba->hbalock);
9443 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9444 "0402 Cannot find virtual addr for buffer tag on "
9445 "ring %d Data x%lx x%p x%p x%x\n",
9446 pring->ringno, (unsigned long) tag,
9447 slp->next, slp->prev, pring->postbufq_cnt);
9453 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
9454 * @phba: Pointer to HBA context object.
9455 * @pring: Pointer to driver SLI ring object.
9456 * @phys: DMA address of the buffer.
9458 * This function searches the buffer list using the dma_address
9459 * of unsolicited event to find the driver's lpfc_dmabuf object
9460 * corresponding to the dma_address. The function returns the
9461 * lpfc_dmabuf object if a buffer is found else it returns NULL.
9462 * This function is called by the ct and els unsolicited event
9463 * handlers to get the buffer associated with the unsolicited
9466 * This function is called with no lock held.
9468 struct lpfc_dmabuf *
9469 lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9472 struct lpfc_dmabuf *mp, *next_mp;
9473 struct list_head *slp = &pring->postbufq;
9475 /* Search postbufq, from the beginning, looking for a match on phys */
9476 spin_lock_irq(&phba->hbalock);
9477 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
9478 if (mp->phys == phys) {
9479 list_del_init(&mp->list);
9480 pring->postbufq_cnt--;
9481 spin_unlock_irq(&phba->hbalock);
9486 spin_unlock_irq(&phba->hbalock);
9487 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9488 "0410 Cannot find virtual addr for mapped buf on "
9489 "ring %d Data x%llx x%p x%p x%x\n",
9490 pring->ringno, (unsigned long long)phys,
9491 slp->next, slp->prev, pring->postbufq_cnt);
9496 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
9497 * @phba: Pointer to HBA context object.
9498 * @cmdiocb: Pointer to driver command iocb object.
9499 * @rspiocb: Pointer to driver response iocb object.
9501 * This function is the completion handler for the abort iocbs for
9502 * ELS commands. This function is called from the ELS ring event
9503 * handler with no lock held. This function frees memory resources
9504 * associated with the abort iocb.
9507 lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9508 struct lpfc_iocbq *rspiocb)
9510 IOCB_t *irsp = &rspiocb->iocb;
9511 uint16_t abort_iotag, abort_context;
9512 struct lpfc_iocbq *abort_iocb = NULL;
9514 if (irsp->ulpStatus) {
9517 * Assume that the port already completed and returned, or
9518 * will return the iocb. Just Log the message.
9520 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
9521 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
9523 spin_lock_irq(&phba->hbalock);
9524 if (phba->sli_rev < LPFC_SLI_REV4) {
9525 if (abort_iotag != 0 &&
9526 abort_iotag <= phba->sli.last_iotag)
9528 phba->sli.iocbq_lookup[abort_iotag];
9530 /* For sli4 the abort_tag is the XRI,
9531 * so the abort routine puts the iotag of the iocb
9532 * being aborted in the context field of the abort
9535 abort_iocb = phba->sli.iocbq_lookup[abort_context];
9537 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI,
9538 "0327 Cannot abort els iocb %p "
9539 "with tag %x context %x, abort status %x, "
9541 abort_iocb, abort_iotag, abort_context,
9542 irsp->ulpStatus, irsp->un.ulpWord[4]);
9544 spin_unlock_irq(&phba->hbalock);
9546 lpfc_sli_release_iocbq(phba, cmdiocb);
9551 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
9552 * @phba: Pointer to HBA context object.
9553 * @cmdiocb: Pointer to driver command iocb object.
9554 * @rspiocb: Pointer to driver response iocb object.
9556 * The function is called from SLI ring event handler with no
9557 * lock held. This function is the completion handler for ELS commands
9558 * which are aborted. The function frees memory resources used for
9559 * the aborted ELS commands.
9562 lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9563 struct lpfc_iocbq *rspiocb)
9565 IOCB_t *irsp = &rspiocb->iocb;
9567 /* ELS cmd tag <ulpIoTag> completes */
9568 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
9569 "0139 Ignoring ELS cmd tag x%x completion Data: "
9571 irsp->ulpIoTag, irsp->ulpStatus,
9572 irsp->un.ulpWord[4], irsp->ulpTimeout);
9573 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
9574 lpfc_ct_free_iocb(phba, cmdiocb);
9576 lpfc_els_free_iocb(phba, cmdiocb);
9581 * lpfc_sli_abort_iotag_issue - Issue abort for a command iocb
9582 * @phba: Pointer to HBA context object.
9583 * @pring: Pointer to driver SLI ring object.
9584 * @cmdiocb: Pointer to driver command iocb object.
9586 * This function issues an abort iocb for the provided command iocb down to
9587 * the port. Other than the case the outstanding command iocb is an abort
9588 * request, this function issues abort out unconditionally. This function is
9589 * called with hbalock held. The function returns 0 when it fails due to
9590 * memory allocation failure or when the command iocb is an abort request.
9593 lpfc_sli_abort_iotag_issue(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9594 struct lpfc_iocbq *cmdiocb)
9596 struct lpfc_vport *vport = cmdiocb->vport;
9597 struct lpfc_iocbq *abtsiocbp;
9598 IOCB_t *icmd = NULL;
9599 IOCB_t *iabt = NULL;
9601 unsigned long iflags;
9604 * There are certain command types we don't want to abort. And we
9605 * don't want to abort commands that are already in the process of
9608 icmd = &cmdiocb->iocb;
9609 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
9610 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
9611 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
9614 /* issue ABTS for this IOCB based on iotag */
9615 abtsiocbp = __lpfc_sli_get_iocbq(phba);
9616 if (abtsiocbp == NULL)
9619 /* This signals the response to set the correct status
9620 * before calling the completion handler
9622 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
9624 iabt = &abtsiocbp->iocb;
9625 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
9626 iabt->un.acxri.abortContextTag = icmd->ulpContext;
9627 if (phba->sli_rev == LPFC_SLI_REV4) {
9628 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
9629 iabt->un.acxri.abortContextTag = cmdiocb->iotag;
9632 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
9634 iabt->ulpClass = icmd->ulpClass;
9636 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
9637 abtsiocbp->fcp_wqidx = cmdiocb->fcp_wqidx;
9638 if (cmdiocb->iocb_flag & LPFC_IO_FCP)
9639 abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
9641 if (phba->link_state >= LPFC_LINK_UP)
9642 iabt->ulpCommand = CMD_ABORT_XRI_CN;
9644 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
9646 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
9648 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
9649 "0339 Abort xri x%x, original iotag x%x, "
9650 "abort cmd iotag x%x\n",
9651 iabt->un.acxri.abortIoTag,
9652 iabt->un.acxri.abortContextTag,
9655 if (phba->sli_rev == LPFC_SLI_REV4) {
9656 /* Note: both hbalock and ring_lock need to be set here */
9657 spin_lock_irqsave(&pring->ring_lock, iflags);
9658 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
9660 spin_unlock_irqrestore(&pring->ring_lock, iflags);
9662 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
9667 __lpfc_sli_release_iocbq(phba, abtsiocbp);
9670 * Caller to this routine should check for IOCB_ERROR
9671 * and handle it properly. This routine no longer removes
9672 * iocb off txcmplq and call compl in case of IOCB_ERROR.
9678 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
9679 * @phba: Pointer to HBA context object.
9680 * @pring: Pointer to driver SLI ring object.
9681 * @cmdiocb: Pointer to driver command iocb object.
9683 * This function issues an abort iocb for the provided command iocb. In case
9684 * of unloading, the abort iocb will not be issued to commands on the ELS
9685 * ring. Instead, the callback function shall be changed to those commands
9686 * so that nothing happens when them finishes. This function is called with
9687 * hbalock held. The function returns 0 when the command iocb is an abort
9691 lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9692 struct lpfc_iocbq *cmdiocb)
9694 struct lpfc_vport *vport = cmdiocb->vport;
9695 int retval = IOCB_ERROR;
9696 IOCB_t *icmd = NULL;
9699 * There are certain command types we don't want to abort. And we
9700 * don't want to abort commands that are already in the process of
9703 icmd = &cmdiocb->iocb;
9704 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
9705 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
9706 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
9710 * If we're unloading, don't abort iocb on the ELS ring, but change
9711 * the callback so that nothing happens when it finishes.
9713 if ((vport->load_flag & FC_UNLOADING) &&
9714 (pring->ringno == LPFC_ELS_RING)) {
9715 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
9716 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
9718 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
9719 goto abort_iotag_exit;
9722 /* Now, we try to issue the abort to the cmdiocb out */
9723 retval = lpfc_sli_abort_iotag_issue(phba, pring, cmdiocb);
9727 * Caller to this routine should check for IOCB_ERROR
9728 * and handle it properly. This routine no longer removes
9729 * iocb off txcmplq and call compl in case of IOCB_ERROR.
9735 * lpfc_sli_iocb_ring_abort - Unconditionally abort all iocbs on an iocb ring
9736 * @phba: Pointer to HBA context object.
9737 * @pring: Pointer to driver SLI ring object.
9739 * This function aborts all iocbs in the given ring and frees all the iocb
9740 * objects in txq. This function issues abort iocbs unconditionally for all
9741 * the iocb commands in txcmplq. The iocbs in the txcmplq is not guaranteed
9742 * to complete before the return of this function. The caller is not required
9743 * to hold any locks.
9746 lpfc_sli_iocb_ring_abort(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
9748 LIST_HEAD(completions);
9749 struct lpfc_iocbq *iocb, *next_iocb;
9751 if (pring->ringno == LPFC_ELS_RING)
9752 lpfc_fabric_abort_hba(phba);
9754 spin_lock_irq(&phba->hbalock);
9756 /* Take off all the iocbs on txq for cancelling */
9757 list_splice_init(&pring->txq, &completions);
9760 /* Next issue ABTS for everything on the txcmplq */
9761 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
9762 lpfc_sli_abort_iotag_issue(phba, pring, iocb);
9764 spin_unlock_irq(&phba->hbalock);
9766 /* Cancel all the IOCBs from the completions list */
9767 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9772 * lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
9773 * @phba: pointer to lpfc HBA data structure.
9775 * This routine will abort all pending and outstanding iocbs to an HBA.
9778 lpfc_sli_hba_iocb_abort(struct lpfc_hba *phba)
9780 struct lpfc_sli *psli = &phba->sli;
9781 struct lpfc_sli_ring *pring;
9784 for (i = 0; i < psli->num_rings; i++) {
9785 pring = &psli->ring[i];
9786 lpfc_sli_iocb_ring_abort(phba, pring);
9791 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
9792 * @iocbq: Pointer to driver iocb object.
9793 * @vport: Pointer to driver virtual port object.
9794 * @tgt_id: SCSI ID of the target.
9795 * @lun_id: LUN ID of the scsi device.
9796 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
9798 * This function acts as an iocb filter for functions which abort or count
9799 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
9800 * 0 if the filtering criteria is met for the given iocb and will return
9801 * 1 if the filtering criteria is not met.
9802 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
9803 * given iocb is for the SCSI device specified by vport, tgt_id and
9805 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
9806 * given iocb is for the SCSI target specified by vport and tgt_id
9808 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
9809 * given iocb is for the SCSI host associated with the given vport.
9810 * This function is called with no locks held.
9813 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
9814 uint16_t tgt_id, uint64_t lun_id,
9815 lpfc_ctx_cmd ctx_cmd)
9817 struct lpfc_scsi_buf *lpfc_cmd;
9820 if (!(iocbq->iocb_flag & LPFC_IO_FCP))
9823 if (iocbq->vport != vport)
9826 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
9828 if (lpfc_cmd->pCmd == NULL)
9833 if ((lpfc_cmd->rdata->pnode) &&
9834 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
9835 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
9839 if ((lpfc_cmd->rdata->pnode) &&
9840 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
9847 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
9856 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
9857 * @vport: Pointer to virtual port.
9858 * @tgt_id: SCSI ID of the target.
9859 * @lun_id: LUN ID of the scsi device.
9860 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
9862 * This function returns number of FCP commands pending for the vport.
9863 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
9864 * commands pending on the vport associated with SCSI device specified
9865 * by tgt_id and lun_id parameters.
9866 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
9867 * commands pending on the vport associated with SCSI target specified
9868 * by tgt_id parameter.
9869 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
9870 * commands pending on the vport.
9871 * This function returns the number of iocbs which satisfy the filter.
9872 * This function is called without any lock held.
9875 lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
9876 lpfc_ctx_cmd ctx_cmd)
9878 struct lpfc_hba *phba = vport->phba;
9879 struct lpfc_iocbq *iocbq;
9882 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
9883 iocbq = phba->sli.iocbq_lookup[i];
9885 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
9894 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
9895 * @phba: Pointer to HBA context object
9896 * @cmdiocb: Pointer to command iocb object.
9897 * @rspiocb: Pointer to response iocb object.
9899 * This function is called when an aborted FCP iocb completes. This
9900 * function is called by the ring event handler with no lock held.
9901 * This function frees the iocb.
9904 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9905 struct lpfc_iocbq *rspiocb)
9907 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9908 "3096 ABORT_XRI_CN completing on rpi x%x "
9909 "original iotag x%x, abort cmd iotag x%x "
9910 "status 0x%x, reason 0x%x\n",
9911 cmdiocb->iocb.un.acxri.abortContextTag,
9912 cmdiocb->iocb.un.acxri.abortIoTag,
9913 cmdiocb->iotag, rspiocb->iocb.ulpStatus,
9914 rspiocb->iocb.un.ulpWord[4]);
9915 lpfc_sli_release_iocbq(phba, cmdiocb);
9920 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
9921 * @vport: Pointer to virtual port.
9922 * @pring: Pointer to driver SLI ring object.
9923 * @tgt_id: SCSI ID of the target.
9924 * @lun_id: LUN ID of the scsi device.
9925 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
9927 * This function sends an abort command for every SCSI command
9928 * associated with the given virtual port pending on the ring
9929 * filtered by lpfc_sli_validate_fcp_iocb function.
9930 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
9931 * FCP iocbs associated with lun specified by tgt_id and lun_id
9933 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
9934 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
9935 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
9936 * FCP iocbs associated with virtual port.
9937 * This function returns number of iocbs it failed to abort.
9938 * This function is called with no locks held.
9941 lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
9942 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
9944 struct lpfc_hba *phba = vport->phba;
9945 struct lpfc_iocbq *iocbq;
9946 struct lpfc_iocbq *abtsiocb;
9948 int errcnt = 0, ret_val = 0;
9951 for (i = 1; i <= phba->sli.last_iotag; i++) {
9952 iocbq = phba->sli.iocbq_lookup[i];
9954 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
9959 * If the iocbq is already being aborted, don't take a second
9960 * action, but do count it.
9962 if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
9965 /* issue ABTS for this IOCB based on iotag */
9966 abtsiocb = lpfc_sli_get_iocbq(phba);
9967 if (abtsiocb == NULL) {
9972 /* indicate the IO is being aborted by the driver. */
9973 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
9976 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
9977 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
9978 if (phba->sli_rev == LPFC_SLI_REV4)
9979 abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
9981 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
9982 abtsiocb->iocb.ulpLe = 1;
9983 abtsiocb->iocb.ulpClass = cmd->ulpClass;
9984 abtsiocb->vport = vport;
9986 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
9987 abtsiocb->fcp_wqidx = iocbq->fcp_wqidx;
9988 if (iocbq->iocb_flag & LPFC_IO_FCP)
9989 abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
9991 if (lpfc_is_link_up(phba))
9992 abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
9994 abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
9996 /* Setup callback routine and issue the command. */
9997 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
9998 ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
10000 if (ret_val == IOCB_ERROR) {
10001 lpfc_sli_release_iocbq(phba, abtsiocb);
10011 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
10012 * @phba: Pointer to HBA context object.
10013 * @cmdiocbq: Pointer to command iocb.
10014 * @rspiocbq: Pointer to response iocb.
10016 * This function is the completion handler for iocbs issued using
10017 * lpfc_sli_issue_iocb_wait function. This function is called by the
10018 * ring event handler function without any lock held. This function
10019 * can be called from both worker thread context and interrupt
10020 * context. This function also can be called from other thread which
10021 * cleans up the SLI layer objects.
10022 * This function copy the contents of the response iocb to the
10023 * response iocb memory object provided by the caller of
10024 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
10025 * sleeps for the iocb completion.
10028 lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
10029 struct lpfc_iocbq *cmdiocbq,
10030 struct lpfc_iocbq *rspiocbq)
10032 wait_queue_head_t *pdone_q;
10033 unsigned long iflags;
10034 struct lpfc_scsi_buf *lpfc_cmd;
10036 spin_lock_irqsave(&phba->hbalock, iflags);
10037 if (cmdiocbq->iocb_flag & LPFC_IO_WAKE_TMO) {
10040 * A time out has occurred for the iocb. If a time out
10041 * completion handler has been supplied, call it. Otherwise,
10042 * just free the iocbq.
10045 spin_unlock_irqrestore(&phba->hbalock, iflags);
10046 cmdiocbq->iocb_cmpl = cmdiocbq->wait_iocb_cmpl;
10047 cmdiocbq->wait_iocb_cmpl = NULL;
10048 if (cmdiocbq->iocb_cmpl)
10049 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, NULL);
10051 lpfc_sli_release_iocbq(phba, cmdiocbq);
10055 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
10056 if (cmdiocbq->context2 && rspiocbq)
10057 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
10058 &rspiocbq->iocb, sizeof(IOCB_t));
10060 /* Set the exchange busy flag for task management commands */
10061 if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) &&
10062 !(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) {
10063 lpfc_cmd = container_of(cmdiocbq, struct lpfc_scsi_buf,
10065 lpfc_cmd->exch_busy = rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY;
10068 pdone_q = cmdiocbq->context_un.wait_queue;
10071 spin_unlock_irqrestore(&phba->hbalock, iflags);
10076 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
10077 * @phba: Pointer to HBA context object..
10078 * @piocbq: Pointer to command iocb.
10079 * @flag: Flag to test.
10081 * This routine grabs the hbalock and then test the iocb_flag to
10082 * see if the passed in flag is set.
10084 * 1 if flag is set.
10085 * 0 if flag is not set.
10088 lpfc_chk_iocb_flg(struct lpfc_hba *phba,
10089 struct lpfc_iocbq *piocbq, uint32_t flag)
10091 unsigned long iflags;
10094 spin_lock_irqsave(&phba->hbalock, iflags);
10095 ret = piocbq->iocb_flag & flag;
10096 spin_unlock_irqrestore(&phba->hbalock, iflags);
10102 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
10103 * @phba: Pointer to HBA context object..
10104 * @pring: Pointer to sli ring.
10105 * @piocb: Pointer to command iocb.
10106 * @prspiocbq: Pointer to response iocb.
10107 * @timeout: Timeout in number of seconds.
10109 * This function issues the iocb to firmware and waits for the
10110 * iocb to complete. The iocb_cmpl field of the shall be used
10111 * to handle iocbs which time out. If the field is NULL, the
10112 * function shall free the iocbq structure. If more clean up is
10113 * needed, the caller is expected to provide a completion function
10114 * that will provide the needed clean up. If the iocb command is
10115 * not completed within timeout seconds, the function will either
10116 * free the iocbq structure (if iocb_cmpl == NULL) or execute the
10117 * completion function set in the iocb_cmpl field and then return
10118 * a status of IOCB_TIMEDOUT. The caller should not free the iocb
10119 * resources if this function returns IOCB_TIMEDOUT.
10120 * The function waits for the iocb completion using an
10121 * non-interruptible wait.
10122 * This function will sleep while waiting for iocb completion.
10123 * So, this function should not be called from any context which
10124 * does not allow sleeping. Due to the same reason, this function
10125 * cannot be called with interrupt disabled.
10126 * This function assumes that the iocb completions occur while
10127 * this function sleep. So, this function cannot be called from
10128 * the thread which process iocb completion for this ring.
10129 * This function clears the iocb_flag of the iocb object before
10130 * issuing the iocb and the iocb completion handler sets this
10131 * flag and wakes this thread when the iocb completes.
10132 * The contents of the response iocb will be copied to prspiocbq
10133 * by the completion handler when the command completes.
10134 * This function returns IOCB_SUCCESS when success.
10135 * This function is called with no lock held.
10138 lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
10139 uint32_t ring_number,
10140 struct lpfc_iocbq *piocb,
10141 struct lpfc_iocbq *prspiocbq,
10144 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
10145 long timeleft, timeout_req = 0;
10146 int retval = IOCB_SUCCESS;
10148 struct lpfc_iocbq *iocb;
10150 int txcmplq_cnt = 0;
10151 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
10152 unsigned long iflags;
10153 bool iocb_completed = true;
10156 * If the caller has provided a response iocbq buffer, then context2
10157 * is NULL or its an error.
10160 if (piocb->context2)
10162 piocb->context2 = prspiocbq;
10165 piocb->wait_iocb_cmpl = piocb->iocb_cmpl;
10166 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
10167 piocb->context_un.wait_queue = &done_q;
10168 piocb->iocb_flag &= ~(LPFC_IO_WAKE | LPFC_IO_WAKE_TMO);
10170 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
10171 if (lpfc_readl(phba->HCregaddr, &creg_val))
10173 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
10174 writel(creg_val, phba->HCregaddr);
10175 readl(phba->HCregaddr); /* flush */
10178 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb,
10179 SLI_IOCB_RET_IOCB);
10180 if (retval == IOCB_SUCCESS) {
10181 timeout_req = msecs_to_jiffies(timeout * 1000);
10182 timeleft = wait_event_timeout(done_q,
10183 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
10185 spin_lock_irqsave(&phba->hbalock, iflags);
10186 if (!(piocb->iocb_flag & LPFC_IO_WAKE)) {
10189 * IOCB timed out. Inform the wake iocb wait
10190 * completion function and set local status
10193 iocb_completed = false;
10194 piocb->iocb_flag |= LPFC_IO_WAKE_TMO;
10196 spin_unlock_irqrestore(&phba->hbalock, iflags);
10197 if (iocb_completed) {
10198 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10199 "0331 IOCB wake signaled\n");
10200 /* Note: we are not indicating if the IOCB has a success
10201 * status or not - that's for the caller to check.
10202 * IOCB_SUCCESS means just that the command was sent and
10203 * completed. Not that it completed successfully.
10205 } else if (timeleft == 0) {
10206 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10207 "0338 IOCB wait timeout error - no "
10208 "wake response Data x%x\n", timeout);
10209 retval = IOCB_TIMEDOUT;
10211 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10212 "0330 IOCB wake NOT set, "
10214 timeout, (timeleft / jiffies));
10215 retval = IOCB_TIMEDOUT;
10217 } else if (retval == IOCB_BUSY) {
10218 if (phba->cfg_log_verbose & LOG_SLI) {
10219 list_for_each_entry(iocb, &pring->txq, list) {
10222 list_for_each_entry(iocb, &pring->txcmplq, list) {
10225 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10226 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
10227 phba->iocb_cnt, txq_cnt, txcmplq_cnt);
10231 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10232 "0332 IOCB wait issue failed, Data x%x\n",
10234 retval = IOCB_ERROR;
10237 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
10238 if (lpfc_readl(phba->HCregaddr, &creg_val))
10240 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
10241 writel(creg_val, phba->HCregaddr);
10242 readl(phba->HCregaddr); /* flush */
10246 piocb->context2 = NULL;
10248 piocb->context_un.wait_queue = NULL;
10249 piocb->iocb_cmpl = NULL;
10254 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
10255 * @phba: Pointer to HBA context object.
10256 * @pmboxq: Pointer to driver mailbox object.
10257 * @timeout: Timeout in number of seconds.
10259 * This function issues the mailbox to firmware and waits for the
10260 * mailbox command to complete. If the mailbox command is not
10261 * completed within timeout seconds, it returns MBX_TIMEOUT.
10262 * The function waits for the mailbox completion using an
10263 * interruptible wait. If the thread is woken up due to a
10264 * signal, MBX_TIMEOUT error is returned to the caller. Caller
10265 * should not free the mailbox resources, if this function returns
10267 * This function will sleep while waiting for mailbox completion.
10268 * So, this function should not be called from any context which
10269 * does not allow sleeping. Due to the same reason, this function
10270 * cannot be called with interrupt disabled.
10271 * This function assumes that the mailbox completion occurs while
10272 * this function sleep. So, this function cannot be called from
10273 * the worker thread which processes mailbox completion.
10274 * This function is called in the context of HBA management
10276 * This function returns MBX_SUCCESS when successful.
10277 * This function is called with no lock held.
10280 lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
10283 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
10284 MAILBOX_t *mb = NULL;
10286 unsigned long flag;
10288 /* The caller might set context1 for extended buffer */
10289 if (pmboxq->context1)
10290 mb = (MAILBOX_t *)pmboxq->context1;
10292 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
10293 /* setup wake call as IOCB callback */
10294 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
10295 /* setup context field to pass wait_queue pointer to wake function */
10296 pmboxq->context1 = &done_q;
10298 /* now issue the command */
10299 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
10300 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
10301 wait_event_interruptible_timeout(done_q,
10302 pmboxq->mbox_flag & LPFC_MBX_WAKE,
10303 msecs_to_jiffies(timeout * 1000));
10305 spin_lock_irqsave(&phba->hbalock, flag);
10306 /* restore the possible extended buffer for free resource */
10307 pmboxq->context1 = (uint8_t *)mb;
10309 * if LPFC_MBX_WAKE flag is set the mailbox is completed
10310 * else do not free the resources.
10312 if (pmboxq->mbox_flag & LPFC_MBX_WAKE) {
10313 retval = MBX_SUCCESS;
10315 retval = MBX_TIMEOUT;
10316 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10318 spin_unlock_irqrestore(&phba->hbalock, flag);
10320 /* restore the possible extended buffer for free resource */
10321 pmboxq->context1 = (uint8_t *)mb;
10328 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
10329 * @phba: Pointer to HBA context.
10331 * This function is called to shutdown the driver's mailbox sub-system.
10332 * It first marks the mailbox sub-system is in a block state to prevent
10333 * the asynchronous mailbox command from issued off the pending mailbox
10334 * command queue. If the mailbox command sub-system shutdown is due to
10335 * HBA error conditions such as EEH or ERATT, this routine shall invoke
10336 * the mailbox sub-system flush routine to forcefully bring down the
10337 * mailbox sub-system. Otherwise, if it is due to normal condition (such
10338 * as with offline or HBA function reset), this routine will wait for the
10339 * outstanding mailbox command to complete before invoking the mailbox
10340 * sub-system flush routine to gracefully bring down mailbox sub-system.
10343 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba, int mbx_action)
10345 struct lpfc_sli *psli = &phba->sli;
10346 unsigned long timeout;
10348 if (mbx_action == LPFC_MBX_NO_WAIT) {
10349 /* delay 100ms for port state */
10351 lpfc_sli_mbox_sys_flush(phba);
10354 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
10356 spin_lock_irq(&phba->hbalock);
10357 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
10359 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
10360 /* Determine how long we might wait for the active mailbox
10361 * command to be gracefully completed by firmware.
10363 if (phba->sli.mbox_active)
10364 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
10365 phba->sli.mbox_active) *
10367 spin_unlock_irq(&phba->hbalock);
10369 while (phba->sli.mbox_active) {
10370 /* Check active mailbox complete status every 2ms */
10372 if (time_after(jiffies, timeout))
10373 /* Timeout, let the mailbox flush routine to
10374 * forcefully release active mailbox command
10379 spin_unlock_irq(&phba->hbalock);
10381 lpfc_sli_mbox_sys_flush(phba);
10385 * lpfc_sli_eratt_read - read sli-3 error attention events
10386 * @phba: Pointer to HBA context.
10388 * This function is called to read the SLI3 device error attention registers
10389 * for possible error attention events. The caller must hold the hostlock
10390 * with spin_lock_irq().
10392 * This function returns 1 when there is Error Attention in the Host Attention
10393 * Register and returns 0 otherwise.
10396 lpfc_sli_eratt_read(struct lpfc_hba *phba)
10400 /* Read chip Host Attention (HA) register */
10401 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10404 if (ha_copy & HA_ERATT) {
10405 /* Read host status register to retrieve error event */
10406 if (lpfc_sli_read_hs(phba))
10409 /* Check if there is a deferred error condition is active */
10410 if ((HS_FFER1 & phba->work_hs) &&
10411 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
10412 HS_FFER6 | HS_FFER7 | HS_FFER8) & phba->work_hs)) {
10413 phba->hba_flag |= DEFER_ERATT;
10414 /* Clear all interrupt enable conditions */
10415 writel(0, phba->HCregaddr);
10416 readl(phba->HCregaddr);
10419 /* Set the driver HA work bitmap */
10420 phba->work_ha |= HA_ERATT;
10421 /* Indicate polling handles this ERATT */
10422 phba->hba_flag |= HBA_ERATT_HANDLED;
10428 /* Set the driver HS work bitmap */
10429 phba->work_hs |= UNPLUG_ERR;
10430 /* Set the driver HA work bitmap */
10431 phba->work_ha |= HA_ERATT;
10432 /* Indicate polling handles this ERATT */
10433 phba->hba_flag |= HBA_ERATT_HANDLED;
10438 * lpfc_sli4_eratt_read - read sli-4 error attention events
10439 * @phba: Pointer to HBA context.
10441 * This function is called to read the SLI4 device error attention registers
10442 * for possible error attention events. The caller must hold the hostlock
10443 * with spin_lock_irq().
10445 * This function returns 1 when there is Error Attention in the Host Attention
10446 * Register and returns 0 otherwise.
10449 lpfc_sli4_eratt_read(struct lpfc_hba *phba)
10451 uint32_t uerr_sta_hi, uerr_sta_lo;
10452 uint32_t if_type, portsmphr;
10453 struct lpfc_register portstat_reg;
10456 * For now, use the SLI4 device internal unrecoverable error
10457 * registers for error attention. This can be changed later.
10459 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10461 case LPFC_SLI_INTF_IF_TYPE_0:
10462 if (lpfc_readl(phba->sli4_hba.u.if_type0.UERRLOregaddr,
10464 lpfc_readl(phba->sli4_hba.u.if_type0.UERRHIregaddr,
10466 phba->work_hs |= UNPLUG_ERR;
10467 phba->work_ha |= HA_ERATT;
10468 phba->hba_flag |= HBA_ERATT_HANDLED;
10471 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
10472 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
10473 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10474 "1423 HBA Unrecoverable error: "
10475 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
10476 "ue_mask_lo_reg=0x%x, "
10477 "ue_mask_hi_reg=0x%x\n",
10478 uerr_sta_lo, uerr_sta_hi,
10479 phba->sli4_hba.ue_mask_lo,
10480 phba->sli4_hba.ue_mask_hi);
10481 phba->work_status[0] = uerr_sta_lo;
10482 phba->work_status[1] = uerr_sta_hi;
10483 phba->work_ha |= HA_ERATT;
10484 phba->hba_flag |= HBA_ERATT_HANDLED;
10488 case LPFC_SLI_INTF_IF_TYPE_2:
10489 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
10490 &portstat_reg.word0) ||
10491 lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
10493 phba->work_hs |= UNPLUG_ERR;
10494 phba->work_ha |= HA_ERATT;
10495 phba->hba_flag |= HBA_ERATT_HANDLED;
10498 if (bf_get(lpfc_sliport_status_err, &portstat_reg)) {
10499 phba->work_status[0] =
10500 readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
10501 phba->work_status[1] =
10502 readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
10503 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10504 "2885 Port Status Event: "
10505 "port status reg 0x%x, "
10506 "port smphr reg 0x%x, "
10507 "error 1=0x%x, error 2=0x%x\n",
10508 portstat_reg.word0,
10510 phba->work_status[0],
10511 phba->work_status[1]);
10512 phba->work_ha |= HA_ERATT;
10513 phba->hba_flag |= HBA_ERATT_HANDLED;
10517 case LPFC_SLI_INTF_IF_TYPE_1:
10519 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10520 "2886 HBA Error Attention on unsupported "
10521 "if type %d.", if_type);
10529 * lpfc_sli_check_eratt - check error attention events
10530 * @phba: Pointer to HBA context.
10532 * This function is called from timer soft interrupt context to check HBA's
10533 * error attention register bit for error attention events.
10535 * This function returns 1 when there is Error Attention in the Host Attention
10536 * Register and returns 0 otherwise.
10539 lpfc_sli_check_eratt(struct lpfc_hba *phba)
10543 /* If somebody is waiting to handle an eratt, don't process it
10544 * here. The brdkill function will do this.
10546 if (phba->link_flag & LS_IGNORE_ERATT)
10549 /* Check if interrupt handler handles this ERATT */
10550 spin_lock_irq(&phba->hbalock);
10551 if (phba->hba_flag & HBA_ERATT_HANDLED) {
10552 /* Interrupt handler has handled ERATT */
10553 spin_unlock_irq(&phba->hbalock);
10558 * If there is deferred error attention, do not check for error
10561 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10562 spin_unlock_irq(&phba->hbalock);
10566 /* If PCI channel is offline, don't process it */
10567 if (unlikely(pci_channel_offline(phba->pcidev))) {
10568 spin_unlock_irq(&phba->hbalock);
10572 switch (phba->sli_rev) {
10573 case LPFC_SLI_REV2:
10574 case LPFC_SLI_REV3:
10575 /* Read chip Host Attention (HA) register */
10576 ha_copy = lpfc_sli_eratt_read(phba);
10578 case LPFC_SLI_REV4:
10579 /* Read device Uncoverable Error (UERR) registers */
10580 ha_copy = lpfc_sli4_eratt_read(phba);
10583 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10584 "0299 Invalid SLI revision (%d)\n",
10589 spin_unlock_irq(&phba->hbalock);
10595 * lpfc_intr_state_check - Check device state for interrupt handling
10596 * @phba: Pointer to HBA context.
10598 * This inline routine checks whether a device or its PCI slot is in a state
10599 * that the interrupt should be handled.
10601 * This function returns 0 if the device or the PCI slot is in a state that
10602 * interrupt should be handled, otherwise -EIO.
10605 lpfc_intr_state_check(struct lpfc_hba *phba)
10607 /* If the pci channel is offline, ignore all the interrupts */
10608 if (unlikely(pci_channel_offline(phba->pcidev)))
10611 /* Update device level interrupt statistics */
10612 phba->sli.slistat.sli_intr++;
10614 /* Ignore all interrupts during initialization. */
10615 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
10622 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
10623 * @irq: Interrupt number.
10624 * @dev_id: The device context pointer.
10626 * This function is directly called from the PCI layer as an interrupt
10627 * service routine when device with SLI-3 interface spec is enabled with
10628 * MSI-X multi-message interrupt mode and there are slow-path events in
10629 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
10630 * interrupt mode, this function is called as part of the device-level
10631 * interrupt handler. When the PCI slot is in error recovery or the HBA
10632 * is undergoing initialization, the interrupt handler will not process
10633 * the interrupt. The link attention and ELS ring attention events are
10634 * handled by the worker thread. The interrupt handler signals the worker
10635 * thread and returns for these events. This function is called without
10636 * any lock held. It gets the hbalock to access and update SLI data
10639 * This function returns IRQ_HANDLED when interrupt is handled else it
10640 * returns IRQ_NONE.
10643 lpfc_sli_sp_intr_handler(int irq, void *dev_id)
10645 struct lpfc_hba *phba;
10646 uint32_t ha_copy, hc_copy;
10647 uint32_t work_ha_copy;
10648 unsigned long status;
10649 unsigned long iflag;
10652 MAILBOX_t *mbox, *pmbox;
10653 struct lpfc_vport *vport;
10654 struct lpfc_nodelist *ndlp;
10655 struct lpfc_dmabuf *mp;
10660 * Get the driver's phba structure from the dev_id and
10661 * assume the HBA is not interrupting.
10663 phba = (struct lpfc_hba *)dev_id;
10665 if (unlikely(!phba))
10669 * Stuff needs to be attented to when this function is invoked as an
10670 * individual interrupt handler in MSI-X multi-message interrupt mode
10672 if (phba->intr_type == MSIX) {
10673 /* Check device state for handling interrupt */
10674 if (lpfc_intr_state_check(phba))
10676 /* Need to read HA REG for slow-path events */
10677 spin_lock_irqsave(&phba->hbalock, iflag);
10678 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10680 /* If somebody is waiting to handle an eratt don't process it
10681 * here. The brdkill function will do this.
10683 if (phba->link_flag & LS_IGNORE_ERATT)
10684 ha_copy &= ~HA_ERATT;
10685 /* Check the need for handling ERATT in interrupt handler */
10686 if (ha_copy & HA_ERATT) {
10687 if (phba->hba_flag & HBA_ERATT_HANDLED)
10688 /* ERATT polling has handled ERATT */
10689 ha_copy &= ~HA_ERATT;
10691 /* Indicate interrupt handler handles ERATT */
10692 phba->hba_flag |= HBA_ERATT_HANDLED;
10696 * If there is deferred error attention, do not check for any
10699 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10700 spin_unlock_irqrestore(&phba->hbalock, iflag);
10704 /* Clear up only attention source related to slow-path */
10705 if (lpfc_readl(phba->HCregaddr, &hc_copy))
10708 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
10709 HC_LAINT_ENA | HC_ERINT_ENA),
10711 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
10713 writel(hc_copy, phba->HCregaddr);
10714 readl(phba->HAregaddr); /* flush */
10715 spin_unlock_irqrestore(&phba->hbalock, iflag);
10717 ha_copy = phba->ha_copy;
10719 work_ha_copy = ha_copy & phba->work_ha_mask;
10721 if (work_ha_copy) {
10722 if (work_ha_copy & HA_LATT) {
10723 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
10725 * Turn off Link Attention interrupts
10726 * until CLEAR_LA done
10728 spin_lock_irqsave(&phba->hbalock, iflag);
10729 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
10730 if (lpfc_readl(phba->HCregaddr, &control))
10732 control &= ~HC_LAINT_ENA;
10733 writel(control, phba->HCregaddr);
10734 readl(phba->HCregaddr); /* flush */
10735 spin_unlock_irqrestore(&phba->hbalock, iflag);
10738 work_ha_copy &= ~HA_LATT;
10741 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
10743 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
10744 * the only slow ring.
10746 status = (work_ha_copy &
10747 (HA_RXMASK << (4*LPFC_ELS_RING)));
10748 status >>= (4*LPFC_ELS_RING);
10749 if (status & HA_RXMASK) {
10750 spin_lock_irqsave(&phba->hbalock, iflag);
10751 if (lpfc_readl(phba->HCregaddr, &control))
10754 lpfc_debugfs_slow_ring_trc(phba,
10755 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
10757 (uint32_t)phba->sli.slistat.sli_intr);
10759 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
10760 lpfc_debugfs_slow_ring_trc(phba,
10761 "ISR Disable ring:"
10762 "pwork:x%x hawork:x%x wait:x%x",
10763 phba->work_ha, work_ha_copy,
10764 (uint32_t)((unsigned long)
10765 &phba->work_waitq));
10768 ~(HC_R0INT_ENA << LPFC_ELS_RING);
10769 writel(control, phba->HCregaddr);
10770 readl(phba->HCregaddr); /* flush */
10773 lpfc_debugfs_slow_ring_trc(phba,
10774 "ISR slow ring: pwork:"
10775 "x%x hawork:x%x wait:x%x",
10776 phba->work_ha, work_ha_copy,
10777 (uint32_t)((unsigned long)
10778 &phba->work_waitq));
10780 spin_unlock_irqrestore(&phba->hbalock, iflag);
10783 spin_lock_irqsave(&phba->hbalock, iflag);
10784 if (work_ha_copy & HA_ERATT) {
10785 if (lpfc_sli_read_hs(phba))
10788 * Check if there is a deferred error condition
10791 if ((HS_FFER1 & phba->work_hs) &&
10792 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
10793 HS_FFER6 | HS_FFER7 | HS_FFER8) &
10795 phba->hba_flag |= DEFER_ERATT;
10796 /* Clear all interrupt enable conditions */
10797 writel(0, phba->HCregaddr);
10798 readl(phba->HCregaddr);
10802 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
10803 pmb = phba->sli.mbox_active;
10804 pmbox = &pmb->u.mb;
10806 vport = pmb->vport;
10808 /* First check out the status word */
10809 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
10810 if (pmbox->mbxOwner != OWN_HOST) {
10811 spin_unlock_irqrestore(&phba->hbalock, iflag);
10813 * Stray Mailbox Interrupt, mbxCommand <cmd>
10814 * mbxStatus <status>
10816 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
10818 "(%d):0304 Stray Mailbox "
10819 "Interrupt mbxCommand x%x "
10821 (vport ? vport->vpi : 0),
10824 /* clear mailbox attention bit */
10825 work_ha_copy &= ~HA_MBATT;
10827 phba->sli.mbox_active = NULL;
10828 spin_unlock_irqrestore(&phba->hbalock, iflag);
10829 phba->last_completion_time = jiffies;
10830 del_timer(&phba->sli.mbox_tmo);
10831 if (pmb->mbox_cmpl) {
10832 lpfc_sli_pcimem_bcopy(mbox, pmbox,
10834 if (pmb->out_ext_byte_len &&
10836 lpfc_sli_pcimem_bcopy(
10839 pmb->out_ext_byte_len);
10841 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
10842 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
10844 lpfc_debugfs_disc_trc(vport,
10845 LPFC_DISC_TRC_MBOX_VPORT,
10846 "MBOX dflt rpi: : "
10847 "status:x%x rpi:x%x",
10848 (uint32_t)pmbox->mbxStatus,
10849 pmbox->un.varWords[0], 0);
10851 if (!pmbox->mbxStatus) {
10852 mp = (struct lpfc_dmabuf *)
10854 ndlp = (struct lpfc_nodelist *)
10857 /* Reg_LOGIN of dflt RPI was
10858 * successful. new lets get
10859 * rid of the RPI using the
10860 * same mbox buffer.
10862 lpfc_unreg_login(phba,
10864 pmbox->un.varWords[0],
10867 lpfc_mbx_cmpl_dflt_rpi;
10868 pmb->context1 = mp;
10869 pmb->context2 = ndlp;
10870 pmb->vport = vport;
10871 rc = lpfc_sli_issue_mbox(phba,
10874 if (rc != MBX_BUSY)
10875 lpfc_printf_log(phba,
10877 LOG_MBOX | LOG_SLI,
10878 "0350 rc should have"
10879 "been MBX_BUSY\n");
10880 if (rc != MBX_NOT_FINISHED)
10881 goto send_current_mbox;
10885 &phba->pport->work_port_lock,
10887 phba->pport->work_port_events &=
10889 spin_unlock_irqrestore(
10890 &phba->pport->work_port_lock,
10892 lpfc_mbox_cmpl_put(phba, pmb);
10895 spin_unlock_irqrestore(&phba->hbalock, iflag);
10897 if ((work_ha_copy & HA_MBATT) &&
10898 (phba->sli.mbox_active == NULL)) {
10900 /* Process next mailbox command if there is one */
10902 rc = lpfc_sli_issue_mbox(phba, NULL,
10904 } while (rc == MBX_NOT_FINISHED);
10905 if (rc != MBX_SUCCESS)
10906 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
10907 LOG_SLI, "0349 rc should be "
10911 spin_lock_irqsave(&phba->hbalock, iflag);
10912 phba->work_ha |= work_ha_copy;
10913 spin_unlock_irqrestore(&phba->hbalock, iflag);
10914 lpfc_worker_wake_up(phba);
10916 return IRQ_HANDLED;
10918 spin_unlock_irqrestore(&phba->hbalock, iflag);
10919 return IRQ_HANDLED;
10921 } /* lpfc_sli_sp_intr_handler */
10924 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
10925 * @irq: Interrupt number.
10926 * @dev_id: The device context pointer.
10928 * This function is directly called from the PCI layer as an interrupt
10929 * service routine when device with SLI-3 interface spec is enabled with
10930 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
10931 * ring event in the HBA. However, when the device is enabled with either
10932 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
10933 * device-level interrupt handler. When the PCI slot is in error recovery
10934 * or the HBA is undergoing initialization, the interrupt handler will not
10935 * process the interrupt. The SCSI FCP fast-path ring event are handled in
10936 * the intrrupt context. This function is called without any lock held.
10937 * It gets the hbalock to access and update SLI data structures.
10939 * This function returns IRQ_HANDLED when interrupt is handled else it
10940 * returns IRQ_NONE.
10943 lpfc_sli_fp_intr_handler(int irq, void *dev_id)
10945 struct lpfc_hba *phba;
10947 unsigned long status;
10948 unsigned long iflag;
10950 /* Get the driver's phba structure from the dev_id and
10951 * assume the HBA is not interrupting.
10953 phba = (struct lpfc_hba *) dev_id;
10955 if (unlikely(!phba))
10959 * Stuff needs to be attented to when this function is invoked as an
10960 * individual interrupt handler in MSI-X multi-message interrupt mode
10962 if (phba->intr_type == MSIX) {
10963 /* Check device state for handling interrupt */
10964 if (lpfc_intr_state_check(phba))
10966 /* Need to read HA REG for FCP ring and other ring events */
10967 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10968 return IRQ_HANDLED;
10969 /* Clear up only attention source related to fast-path */
10970 spin_lock_irqsave(&phba->hbalock, iflag);
10972 * If there is deferred error attention, do not check for
10975 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10976 spin_unlock_irqrestore(&phba->hbalock, iflag);
10979 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
10981 readl(phba->HAregaddr); /* flush */
10982 spin_unlock_irqrestore(&phba->hbalock, iflag);
10984 ha_copy = phba->ha_copy;
10987 * Process all events on FCP ring. Take the optimized path for FCP IO.
10989 ha_copy &= ~(phba->work_ha_mask);
10991 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
10992 status >>= (4*LPFC_FCP_RING);
10993 if (status & HA_RXMASK)
10994 lpfc_sli_handle_fast_ring_event(phba,
10995 &phba->sli.ring[LPFC_FCP_RING],
10998 if (phba->cfg_multi_ring_support == 2) {
11000 * Process all events on extra ring. Take the optimized path
11001 * for extra ring IO.
11003 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
11004 status >>= (4*LPFC_EXTRA_RING);
11005 if (status & HA_RXMASK) {
11006 lpfc_sli_handle_fast_ring_event(phba,
11007 &phba->sli.ring[LPFC_EXTRA_RING],
11011 return IRQ_HANDLED;
11012 } /* lpfc_sli_fp_intr_handler */
11015 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
11016 * @irq: Interrupt number.
11017 * @dev_id: The device context pointer.
11019 * This function is the HBA device-level interrupt handler to device with
11020 * SLI-3 interface spec, called from the PCI layer when either MSI or
11021 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
11022 * requires driver attention. This function invokes the slow-path interrupt
11023 * attention handling function and fast-path interrupt attention handling
11024 * function in turn to process the relevant HBA attention events. This
11025 * function is called without any lock held. It gets the hbalock to access
11026 * and update SLI data structures.
11028 * This function returns IRQ_HANDLED when interrupt is handled, else it
11029 * returns IRQ_NONE.
11032 lpfc_sli_intr_handler(int irq, void *dev_id)
11034 struct lpfc_hba *phba;
11035 irqreturn_t sp_irq_rc, fp_irq_rc;
11036 unsigned long status1, status2;
11040 * Get the driver's phba structure from the dev_id and
11041 * assume the HBA is not interrupting.
11043 phba = (struct lpfc_hba *) dev_id;
11045 if (unlikely(!phba))
11048 /* Check device state for handling interrupt */
11049 if (lpfc_intr_state_check(phba))
11052 spin_lock(&phba->hbalock);
11053 if (lpfc_readl(phba->HAregaddr, &phba->ha_copy)) {
11054 spin_unlock(&phba->hbalock);
11055 return IRQ_HANDLED;
11058 if (unlikely(!phba->ha_copy)) {
11059 spin_unlock(&phba->hbalock);
11061 } else if (phba->ha_copy & HA_ERATT) {
11062 if (phba->hba_flag & HBA_ERATT_HANDLED)
11063 /* ERATT polling has handled ERATT */
11064 phba->ha_copy &= ~HA_ERATT;
11066 /* Indicate interrupt handler handles ERATT */
11067 phba->hba_flag |= HBA_ERATT_HANDLED;
11071 * If there is deferred error attention, do not check for any interrupt.
11073 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
11074 spin_unlock(&phba->hbalock);
11078 /* Clear attention sources except link and error attentions */
11079 if (lpfc_readl(phba->HCregaddr, &hc_copy)) {
11080 spin_unlock(&phba->hbalock);
11081 return IRQ_HANDLED;
11083 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
11084 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
11086 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
11087 writel(hc_copy, phba->HCregaddr);
11088 readl(phba->HAregaddr); /* flush */
11089 spin_unlock(&phba->hbalock);
11092 * Invokes slow-path host attention interrupt handling as appropriate.
11095 /* status of events with mailbox and link attention */
11096 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
11098 /* status of events with ELS ring */
11099 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
11100 status2 >>= (4*LPFC_ELS_RING);
11102 if (status1 || (status2 & HA_RXMASK))
11103 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
11105 sp_irq_rc = IRQ_NONE;
11108 * Invoke fast-path host attention interrupt handling as appropriate.
11111 /* status of events with FCP ring */
11112 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
11113 status1 >>= (4*LPFC_FCP_RING);
11115 /* status of events with extra ring */
11116 if (phba->cfg_multi_ring_support == 2) {
11117 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
11118 status2 >>= (4*LPFC_EXTRA_RING);
11122 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
11123 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
11125 fp_irq_rc = IRQ_NONE;
11127 /* Return device-level interrupt handling status */
11128 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
11129 } /* lpfc_sli_intr_handler */
11132 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
11133 * @phba: pointer to lpfc hba data structure.
11135 * This routine is invoked by the worker thread to process all the pending
11136 * SLI4 FCP abort XRI events.
11138 void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba)
11140 struct lpfc_cq_event *cq_event;
11142 /* First, declare the fcp xri abort event has been handled */
11143 spin_lock_irq(&phba->hbalock);
11144 phba->hba_flag &= ~FCP_XRI_ABORT_EVENT;
11145 spin_unlock_irq(&phba->hbalock);
11146 /* Now, handle all the fcp xri abort events */
11147 while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) {
11148 /* Get the first event from the head of the event queue */
11149 spin_lock_irq(&phba->hbalock);
11150 list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
11151 cq_event, struct lpfc_cq_event, list);
11152 spin_unlock_irq(&phba->hbalock);
11153 /* Notify aborted XRI for FCP work queue */
11154 lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
11155 /* Free the event processed back to the free pool */
11156 lpfc_sli4_cq_event_release(phba, cq_event);
11161 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
11162 * @phba: pointer to lpfc hba data structure.
11164 * This routine is invoked by the worker thread to process all the pending
11165 * SLI4 els abort xri events.
11167 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
11169 struct lpfc_cq_event *cq_event;
11171 /* First, declare the els xri abort event has been handled */
11172 spin_lock_irq(&phba->hbalock);
11173 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
11174 spin_unlock_irq(&phba->hbalock);
11175 /* Now, handle all the els xri abort events */
11176 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
11177 /* Get the first event from the head of the event queue */
11178 spin_lock_irq(&phba->hbalock);
11179 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
11180 cq_event, struct lpfc_cq_event, list);
11181 spin_unlock_irq(&phba->hbalock);
11182 /* Notify aborted XRI for ELS work queue */
11183 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
11184 /* Free the event processed back to the free pool */
11185 lpfc_sli4_cq_event_release(phba, cq_event);
11190 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
11191 * @phba: pointer to lpfc hba data structure
11192 * @pIocbIn: pointer to the rspiocbq
11193 * @pIocbOut: pointer to the cmdiocbq
11194 * @wcqe: pointer to the complete wcqe
11196 * This routine transfers the fields of a command iocbq to a response iocbq
11197 * by copying all the IOCB fields from command iocbq and transferring the
11198 * completion status information from the complete wcqe.
11201 lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
11202 struct lpfc_iocbq *pIocbIn,
11203 struct lpfc_iocbq *pIocbOut,
11204 struct lpfc_wcqe_complete *wcqe)
11207 unsigned long iflags;
11208 uint32_t status, max_response;
11209 struct lpfc_dmabuf *dmabuf;
11210 struct ulp_bde64 *bpl, bde;
11211 size_t offset = offsetof(struct lpfc_iocbq, iocb);
11213 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
11214 sizeof(struct lpfc_iocbq) - offset);
11215 /* Map WCQE parameters into irspiocb parameters */
11216 status = bf_get(lpfc_wcqe_c_status, wcqe);
11217 pIocbIn->iocb.ulpStatus = (status & LPFC_IOCB_STATUS_MASK);
11218 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
11219 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
11220 pIocbIn->iocb.un.fcpi.fcpi_parm =
11221 pIocbOut->iocb.un.fcpi.fcpi_parm -
11222 wcqe->total_data_placed;
11224 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
11226 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
11227 switch (pIocbOut->iocb.ulpCommand) {
11228 case CMD_ELS_REQUEST64_CR:
11229 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
11230 bpl = (struct ulp_bde64 *)dmabuf->virt;
11231 bde.tus.w = le32_to_cpu(bpl[1].tus.w);
11232 max_response = bde.tus.f.bdeSize;
11234 case CMD_GEN_REQUEST64_CR:
11236 if (!pIocbOut->context3)
11238 numBdes = pIocbOut->iocb.un.genreq64.bdl.bdeSize/
11239 sizeof(struct ulp_bde64);
11240 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
11241 bpl = (struct ulp_bde64 *)dmabuf->virt;
11242 for (i = 0; i < numBdes; i++) {
11243 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
11244 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
11245 max_response += bde.tus.f.bdeSize;
11249 max_response = wcqe->total_data_placed;
11252 if (max_response < wcqe->total_data_placed)
11253 pIocbIn->iocb.un.genreq64.bdl.bdeSize = max_response;
11255 pIocbIn->iocb.un.genreq64.bdl.bdeSize =
11256 wcqe->total_data_placed;
11259 /* Convert BG errors for completion status */
11260 if (status == CQE_STATUS_DI_ERROR) {
11261 pIocbIn->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
11263 if (bf_get(lpfc_wcqe_c_bg_edir, wcqe))
11264 pIocbIn->iocb.un.ulpWord[4] = IOERR_RX_DMA_FAILED;
11266 pIocbIn->iocb.un.ulpWord[4] = IOERR_TX_DMA_FAILED;
11268 pIocbIn->iocb.unsli3.sli3_bg.bgstat = 0;
11269 if (bf_get(lpfc_wcqe_c_bg_ge, wcqe)) /* Guard Check failed */
11270 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11271 BGS_GUARD_ERR_MASK;
11272 if (bf_get(lpfc_wcqe_c_bg_ae, wcqe)) /* App Tag Check failed */
11273 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11274 BGS_APPTAG_ERR_MASK;
11275 if (bf_get(lpfc_wcqe_c_bg_re, wcqe)) /* Ref Tag Check failed */
11276 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11277 BGS_REFTAG_ERR_MASK;
11279 /* Check to see if there was any good data before the error */
11280 if (bf_get(lpfc_wcqe_c_bg_tdpv, wcqe)) {
11281 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11282 BGS_HI_WATER_MARK_PRESENT_MASK;
11283 pIocbIn->iocb.unsli3.sli3_bg.bghm =
11284 wcqe->total_data_placed;
11288 * Set ALL the error bits to indicate we don't know what
11289 * type of error it is.
11291 if (!pIocbIn->iocb.unsli3.sli3_bg.bgstat)
11292 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11293 (BGS_REFTAG_ERR_MASK | BGS_APPTAG_ERR_MASK |
11294 BGS_GUARD_ERR_MASK);
11297 /* Pick up HBA exchange busy condition */
11298 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
11299 spin_lock_irqsave(&phba->hbalock, iflags);
11300 pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY;
11301 spin_unlock_irqrestore(&phba->hbalock, iflags);
11306 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
11307 * @phba: Pointer to HBA context object.
11308 * @wcqe: Pointer to work-queue completion queue entry.
11310 * This routine handles an ELS work-queue completion event and construct
11311 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
11312 * discovery engine to handle.
11314 * Return: Pointer to the receive IOCBQ, NULL otherwise.
11316 static struct lpfc_iocbq *
11317 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
11318 struct lpfc_iocbq *irspiocbq)
11320 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
11321 struct lpfc_iocbq *cmdiocbq;
11322 struct lpfc_wcqe_complete *wcqe;
11323 unsigned long iflags;
11325 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
11326 spin_lock_irqsave(&pring->ring_lock, iflags);
11327 pring->stats.iocb_event++;
11328 /* Look up the ELS command IOCB and create pseudo response IOCB */
11329 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
11330 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11331 spin_unlock_irqrestore(&pring->ring_lock, iflags);
11333 if (unlikely(!cmdiocbq)) {
11334 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11335 "0386 ELS complete with no corresponding "
11336 "cmdiocb: iotag (%d)\n",
11337 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11338 lpfc_sli_release_iocbq(phba, irspiocbq);
11342 /* Fake the irspiocbq and copy necessary response information */
11343 lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe);
11349 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
11350 * @phba: Pointer to HBA context object.
11351 * @cqe: Pointer to mailbox completion queue entry.
11353 * This routine process a mailbox completion queue entry with asynchrous
11356 * Return: true if work posted to worker thread, otherwise false.
11359 lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
11361 struct lpfc_cq_event *cq_event;
11362 unsigned long iflags;
11364 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11365 "0392 Async Event: word0:x%x, word1:x%x, "
11366 "word2:x%x, word3:x%x\n", mcqe->word0,
11367 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
11369 /* Allocate a new internal CQ_EVENT entry */
11370 cq_event = lpfc_sli4_cq_event_alloc(phba);
11372 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11373 "0394 Failed to allocate CQ_EVENT entry\n");
11377 /* Move the CQE into an asynchronous event entry */
11378 memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe));
11379 spin_lock_irqsave(&phba->hbalock, iflags);
11380 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
11381 /* Set the async event flag */
11382 phba->hba_flag |= ASYNC_EVENT;
11383 spin_unlock_irqrestore(&phba->hbalock, iflags);
11389 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
11390 * @phba: Pointer to HBA context object.
11391 * @cqe: Pointer to mailbox completion queue entry.
11393 * This routine process a mailbox completion queue entry with mailbox
11394 * completion event.
11396 * Return: true if work posted to worker thread, otherwise false.
11399 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
11401 uint32_t mcqe_status;
11402 MAILBOX_t *mbox, *pmbox;
11403 struct lpfc_mqe *mqe;
11404 struct lpfc_vport *vport;
11405 struct lpfc_nodelist *ndlp;
11406 struct lpfc_dmabuf *mp;
11407 unsigned long iflags;
11409 bool workposted = false;
11412 /* If not a mailbox complete MCQE, out by checking mailbox consume */
11413 if (!bf_get(lpfc_trailer_completed, mcqe))
11414 goto out_no_mqe_complete;
11416 /* Get the reference to the active mbox command */
11417 spin_lock_irqsave(&phba->hbalock, iflags);
11418 pmb = phba->sli.mbox_active;
11419 if (unlikely(!pmb)) {
11420 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
11421 "1832 No pending MBOX command to handle\n");
11422 spin_unlock_irqrestore(&phba->hbalock, iflags);
11423 goto out_no_mqe_complete;
11425 spin_unlock_irqrestore(&phba->hbalock, iflags);
11427 pmbox = (MAILBOX_t *)&pmb->u.mqe;
11429 vport = pmb->vport;
11431 /* Reset heartbeat timer */
11432 phba->last_completion_time = jiffies;
11433 del_timer(&phba->sli.mbox_tmo);
11435 /* Move mbox data to caller's mailbox region, do endian swapping */
11436 if (pmb->mbox_cmpl && mbox)
11437 lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
11440 * For mcqe errors, conditionally move a modified error code to
11441 * the mbox so that the error will not be missed.
11443 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
11444 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
11445 if (bf_get(lpfc_mqe_status, mqe) == MBX_SUCCESS)
11446 bf_set(lpfc_mqe_status, mqe,
11447 (LPFC_MBX_ERROR_RANGE | mcqe_status));
11449 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
11450 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
11451 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
11452 "MBOX dflt rpi: status:x%x rpi:x%x",
11454 pmbox->un.varWords[0], 0);
11455 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
11456 mp = (struct lpfc_dmabuf *)(pmb->context1);
11457 ndlp = (struct lpfc_nodelist *)pmb->context2;
11458 /* Reg_LOGIN of dflt RPI was successful. Now lets get
11459 * RID of the PPI using the same mbox buffer.
11461 lpfc_unreg_login(phba, vport->vpi,
11462 pmbox->un.varWords[0], pmb);
11463 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
11464 pmb->context1 = mp;
11465 pmb->context2 = ndlp;
11466 pmb->vport = vport;
11467 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
11468 if (rc != MBX_BUSY)
11469 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
11470 LOG_SLI, "0385 rc should "
11471 "have been MBX_BUSY\n");
11472 if (rc != MBX_NOT_FINISHED)
11473 goto send_current_mbox;
11476 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
11477 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
11478 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
11480 /* There is mailbox completion work to do */
11481 spin_lock_irqsave(&phba->hbalock, iflags);
11482 __lpfc_mbox_cmpl_put(phba, pmb);
11483 phba->work_ha |= HA_MBATT;
11484 spin_unlock_irqrestore(&phba->hbalock, iflags);
11488 spin_lock_irqsave(&phba->hbalock, iflags);
11489 /* Release the mailbox command posting token */
11490 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
11491 /* Setting active mailbox pointer need to be in sync to flag clear */
11492 phba->sli.mbox_active = NULL;
11493 spin_unlock_irqrestore(&phba->hbalock, iflags);
11494 /* Wake up worker thread to post the next pending mailbox command */
11495 lpfc_worker_wake_up(phba);
11496 out_no_mqe_complete:
11497 if (bf_get(lpfc_trailer_consumed, mcqe))
11498 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
11503 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
11504 * @phba: Pointer to HBA context object.
11505 * @cqe: Pointer to mailbox completion queue entry.
11507 * This routine process a mailbox completion queue entry, it invokes the
11508 * proper mailbox complete handling or asynchrous event handling routine
11509 * according to the MCQE's async bit.
11511 * Return: true if work posted to worker thread, otherwise false.
11514 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
11516 struct lpfc_mcqe mcqe;
11519 /* Copy the mailbox MCQE and convert endian order as needed */
11520 lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
11522 /* Invoke the proper event handling routine */
11523 if (!bf_get(lpfc_trailer_async, &mcqe))
11524 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
11526 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
11531 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
11532 * @phba: Pointer to HBA context object.
11533 * @cq: Pointer to associated CQ
11534 * @wcqe: Pointer to work-queue completion queue entry.
11536 * This routine handles an ELS work-queue completion event.
11538 * Return: true if work posted to worker thread, otherwise false.
11541 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11542 struct lpfc_wcqe_complete *wcqe)
11544 struct lpfc_iocbq *irspiocbq;
11545 unsigned long iflags;
11546 struct lpfc_sli_ring *pring = cq->pring;
11548 int txcmplq_cnt = 0;
11549 int fcp_txcmplq_cnt = 0;
11551 /* Get an irspiocbq for later ELS response processing use */
11552 irspiocbq = lpfc_sli_get_iocbq(phba);
11554 if (!list_empty(&pring->txq))
11556 if (!list_empty(&pring->txcmplq))
11558 if (!list_empty(&phba->sli.ring[LPFC_FCP_RING].txcmplq))
11560 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11561 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
11562 "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n",
11563 txq_cnt, phba->iocb_cnt,
11569 /* Save off the slow-path queue event for work thread to process */
11570 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
11571 spin_lock_irqsave(&phba->hbalock, iflags);
11572 list_add_tail(&irspiocbq->cq_event.list,
11573 &phba->sli4_hba.sp_queue_event);
11574 phba->hba_flag |= HBA_SP_QUEUE_EVT;
11575 spin_unlock_irqrestore(&phba->hbalock, iflags);
11581 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
11582 * @phba: Pointer to HBA context object.
11583 * @wcqe: Pointer to work-queue completion queue entry.
11585 * This routine handles slow-path WQ entry comsumed event by invoking the
11586 * proper WQ release routine to the slow-path WQ.
11589 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
11590 struct lpfc_wcqe_release *wcqe)
11592 /* sanity check on queue memory */
11593 if (unlikely(!phba->sli4_hba.els_wq))
11595 /* Check for the slow-path ELS work queue */
11596 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
11597 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
11598 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
11600 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11601 "2579 Slow-path wqe consume event carries "
11602 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
11603 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
11604 phba->sli4_hba.els_wq->queue_id);
11608 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
11609 * @phba: Pointer to HBA context object.
11610 * @cq: Pointer to a WQ completion queue.
11611 * @wcqe: Pointer to work-queue completion queue entry.
11613 * This routine handles an XRI abort event.
11615 * Return: true if work posted to worker thread, otherwise false.
11618 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
11619 struct lpfc_queue *cq,
11620 struct sli4_wcqe_xri_aborted *wcqe)
11622 bool workposted = false;
11623 struct lpfc_cq_event *cq_event;
11624 unsigned long iflags;
11626 /* Allocate a new internal CQ_EVENT entry */
11627 cq_event = lpfc_sli4_cq_event_alloc(phba);
11629 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11630 "0602 Failed to allocate CQ_EVENT entry\n");
11634 /* Move the CQE into the proper xri abort event list */
11635 memcpy(&cq_event->cqe, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
11636 switch (cq->subtype) {
11638 spin_lock_irqsave(&phba->hbalock, iflags);
11639 list_add_tail(&cq_event->list,
11640 &phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
11641 /* Set the fcp xri abort event flag */
11642 phba->hba_flag |= FCP_XRI_ABORT_EVENT;
11643 spin_unlock_irqrestore(&phba->hbalock, iflags);
11647 spin_lock_irqsave(&phba->hbalock, iflags);
11648 list_add_tail(&cq_event->list,
11649 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
11650 /* Set the els xri abort event flag */
11651 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
11652 spin_unlock_irqrestore(&phba->hbalock, iflags);
11656 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11657 "0603 Invalid work queue CQE subtype (x%x)\n",
11659 workposted = false;
11666 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
11667 * @phba: Pointer to HBA context object.
11668 * @rcqe: Pointer to receive-queue completion queue entry.
11670 * This routine process a receive-queue completion queue entry.
11672 * Return: true if work posted to worker thread, otherwise false.
11675 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
11677 bool workposted = false;
11678 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
11679 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
11680 struct hbq_dmabuf *dma_buf;
11681 uint32_t status, rq_id;
11682 unsigned long iflags;
11684 /* sanity check on queue memory */
11685 if (unlikely(!hrq) || unlikely(!drq))
11688 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
11689 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
11691 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
11692 if (rq_id != hrq->queue_id)
11695 status = bf_get(lpfc_rcqe_status, rcqe);
11697 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
11698 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11699 "2537 Receive Frame Truncated!!\n");
11700 hrq->RQ_buf_trunc++;
11701 case FC_STATUS_RQ_SUCCESS:
11702 lpfc_sli4_rq_release(hrq, drq);
11703 spin_lock_irqsave(&phba->hbalock, iflags);
11704 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
11706 hrq->RQ_no_buf_found++;
11707 spin_unlock_irqrestore(&phba->hbalock, iflags);
11711 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
11712 /* save off the frame for the word thread to process */
11713 list_add_tail(&dma_buf->cq_event.list,
11714 &phba->sli4_hba.sp_queue_event);
11715 /* Frame received */
11716 phba->hba_flag |= HBA_SP_QUEUE_EVT;
11717 spin_unlock_irqrestore(&phba->hbalock, iflags);
11720 case FC_STATUS_INSUFF_BUF_NEED_BUF:
11721 case FC_STATUS_INSUFF_BUF_FRM_DISC:
11722 hrq->RQ_no_posted_buf++;
11723 /* Post more buffers if possible */
11724 spin_lock_irqsave(&phba->hbalock, iflags);
11725 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
11726 spin_unlock_irqrestore(&phba->hbalock, iflags);
11735 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
11736 * @phba: Pointer to HBA context object.
11737 * @cq: Pointer to the completion queue.
11738 * @wcqe: Pointer to a completion queue entry.
11740 * This routine process a slow-path work-queue or receive queue completion queue
11743 * Return: true if work posted to worker thread, otherwise false.
11746 lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11747 struct lpfc_cqe *cqe)
11749 struct lpfc_cqe cqevt;
11750 bool workposted = false;
11752 /* Copy the work queue CQE and convert endian order if needed */
11753 lpfc_sli_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
11755 /* Check and process for different type of WCQE and dispatch */
11756 switch (bf_get(lpfc_cqe_code, &cqevt)) {
11757 case CQE_CODE_COMPL_WQE:
11758 /* Process the WQ/RQ complete event */
11759 phba->last_completion_time = jiffies;
11760 workposted = lpfc_sli4_sp_handle_els_wcqe(phba, cq,
11761 (struct lpfc_wcqe_complete *)&cqevt);
11763 case CQE_CODE_RELEASE_WQE:
11764 /* Process the WQ release event */
11765 lpfc_sli4_sp_handle_rel_wcqe(phba,
11766 (struct lpfc_wcqe_release *)&cqevt);
11768 case CQE_CODE_XRI_ABORTED:
11769 /* Process the WQ XRI abort event */
11770 phba->last_completion_time = jiffies;
11771 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
11772 (struct sli4_wcqe_xri_aborted *)&cqevt);
11774 case CQE_CODE_RECEIVE:
11775 case CQE_CODE_RECEIVE_V1:
11776 /* Process the RQ event */
11777 phba->last_completion_time = jiffies;
11778 workposted = lpfc_sli4_sp_handle_rcqe(phba,
11779 (struct lpfc_rcqe *)&cqevt);
11782 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11783 "0388 Not a valid WCQE code: x%x\n",
11784 bf_get(lpfc_cqe_code, &cqevt));
11791 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
11792 * @phba: Pointer to HBA context object.
11793 * @eqe: Pointer to fast-path event queue entry.
11795 * This routine process a event queue entry from the slow-path event queue.
11796 * It will check the MajorCode and MinorCode to determine this is for a
11797 * completion event on a completion queue, if not, an error shall be logged
11798 * and just return. Otherwise, it will get to the corresponding completion
11799 * queue and process all the entries on that completion queue, rearm the
11800 * completion queue, and then return.
11804 lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
11805 struct lpfc_queue *speq)
11807 struct lpfc_queue *cq = NULL, *childq;
11808 struct lpfc_cqe *cqe;
11809 bool workposted = false;
11813 /* Get the reference to the corresponding CQ */
11814 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
11816 list_for_each_entry(childq, &speq->child_list, list) {
11817 if (childq->queue_id == cqid) {
11822 if (unlikely(!cq)) {
11823 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
11824 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11825 "0365 Slow-path CQ identifier "
11826 "(%d) does not exist\n", cqid);
11830 /* Process all the entries to the CQ */
11831 switch (cq->type) {
11833 while ((cqe = lpfc_sli4_cq_get(cq))) {
11834 workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe);
11835 if (!(++ecount % cq->entry_repost))
11836 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
11841 while ((cqe = lpfc_sli4_cq_get(cq))) {
11842 if (cq->subtype == LPFC_FCP)
11843 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq,
11846 workposted |= lpfc_sli4_sp_handle_cqe(phba, cq,
11848 if (!(++ecount % cq->entry_repost))
11849 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
11852 /* Track the max number of CQEs processed in 1 EQ */
11853 if (ecount > cq->CQ_max_cqe)
11854 cq->CQ_max_cqe = ecount;
11857 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11858 "0370 Invalid completion queue type (%d)\n",
11863 /* Catch the no cq entry condition, log an error */
11864 if (unlikely(ecount == 0))
11865 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11866 "0371 No entry from the CQ: identifier "
11867 "(x%x), type (%d)\n", cq->queue_id, cq->type);
11869 /* In any case, flash and re-arm the RCQ */
11870 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
11872 /* wake up worker thread if there are works to be done */
11874 lpfc_worker_wake_up(phba);
11878 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
11879 * @phba: Pointer to HBA context object.
11880 * @cq: Pointer to associated CQ
11881 * @wcqe: Pointer to work-queue completion queue entry.
11883 * This routine process a fast-path work queue completion entry from fast-path
11884 * event queue for FCP command response completion.
11887 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11888 struct lpfc_wcqe_complete *wcqe)
11890 struct lpfc_sli_ring *pring = cq->pring;
11891 struct lpfc_iocbq *cmdiocbq;
11892 struct lpfc_iocbq irspiocbq;
11893 unsigned long iflags;
11895 /* Check for response status */
11896 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
11897 /* If resource errors reported from HBA, reduce queue
11898 * depth of the SCSI device.
11900 if (((bf_get(lpfc_wcqe_c_status, wcqe) ==
11901 IOSTAT_LOCAL_REJECT)) &&
11902 ((wcqe->parameter & IOERR_PARAM_MASK) ==
11903 IOERR_NO_RESOURCES))
11904 phba->lpfc_rampdown_queue_depth(phba);
11906 /* Log the error status */
11907 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11908 "0373 FCP complete error: status=x%x, "
11909 "hw_status=x%x, total_data_specified=%d, "
11910 "parameter=x%x, word3=x%x\n",
11911 bf_get(lpfc_wcqe_c_status, wcqe),
11912 bf_get(lpfc_wcqe_c_hw_status, wcqe),
11913 wcqe->total_data_placed, wcqe->parameter,
11917 /* Look up the FCP command IOCB and create pseudo response IOCB */
11918 spin_lock_irqsave(&pring->ring_lock, iflags);
11919 pring->stats.iocb_event++;
11920 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
11921 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11922 spin_unlock_irqrestore(&pring->ring_lock, iflags);
11923 if (unlikely(!cmdiocbq)) {
11924 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11925 "0374 FCP complete with no corresponding "
11926 "cmdiocb: iotag (%d)\n",
11927 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11930 if (unlikely(!cmdiocbq->iocb_cmpl)) {
11931 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11932 "0375 FCP cmdiocb not callback function "
11934 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11938 /* Fake the irspiocb and copy necessary response information */
11939 lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
11941 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
11942 spin_lock_irqsave(&phba->hbalock, iflags);
11943 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
11944 spin_unlock_irqrestore(&phba->hbalock, iflags);
11947 /* Pass the cmd_iocb and the rsp state to the upper layer */
11948 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
11952 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
11953 * @phba: Pointer to HBA context object.
11954 * @cq: Pointer to completion queue.
11955 * @wcqe: Pointer to work-queue completion queue entry.
11957 * This routine handles an fast-path WQ entry comsumed event by invoking the
11958 * proper WQ release routine to the slow-path WQ.
11961 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11962 struct lpfc_wcqe_release *wcqe)
11964 struct lpfc_queue *childwq;
11965 bool wqid_matched = false;
11968 /* Check for fast-path FCP work queue release */
11969 fcp_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
11970 list_for_each_entry(childwq, &cq->child_list, list) {
11971 if (childwq->queue_id == fcp_wqid) {
11972 lpfc_sli4_wq_release(childwq,
11973 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
11974 wqid_matched = true;
11978 /* Report warning log message if no match found */
11979 if (wqid_matched != true)
11980 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11981 "2580 Fast-path wqe consume event carries "
11982 "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid);
11986 * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry
11987 * @cq: Pointer to the completion queue.
11988 * @eqe: Pointer to fast-path completion queue entry.
11990 * This routine process a fast-path work queue completion entry from fast-path
11991 * event queue for FCP command response completion.
11994 lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11995 struct lpfc_cqe *cqe)
11997 struct lpfc_wcqe_release wcqe;
11998 bool workposted = false;
12000 /* Copy the work queue CQE and convert endian order if needed */
12001 lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
12003 /* Check and process for different type of WCQE and dispatch */
12004 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
12005 case CQE_CODE_COMPL_WQE:
12007 /* Process the WQ complete event */
12008 phba->last_completion_time = jiffies;
12009 lpfc_sli4_fp_handle_fcp_wcqe(phba, cq,
12010 (struct lpfc_wcqe_complete *)&wcqe);
12012 case CQE_CODE_RELEASE_WQE:
12013 cq->CQ_release_wqe++;
12014 /* Process the WQ release event */
12015 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
12016 (struct lpfc_wcqe_release *)&wcqe);
12018 case CQE_CODE_XRI_ABORTED:
12019 cq->CQ_xri_aborted++;
12020 /* Process the WQ XRI abort event */
12021 phba->last_completion_time = jiffies;
12022 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
12023 (struct sli4_wcqe_xri_aborted *)&wcqe);
12026 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12027 "0144 Not a valid WCQE code: x%x\n",
12028 bf_get(lpfc_wcqe_c_code, &wcqe));
12035 * lpfc_sli4_hba_handle_eqe - Process a fast-path event queue entry
12036 * @phba: Pointer to HBA context object.
12037 * @eqe: Pointer to fast-path event queue entry.
12039 * This routine process a event queue entry from the fast-path event queue.
12040 * It will check the MajorCode and MinorCode to determine this is for a
12041 * completion event on a completion queue, if not, an error shall be logged
12042 * and just return. Otherwise, it will get to the corresponding completion
12043 * queue and process all the entries on the completion queue, rearm the
12044 * completion queue, and then return.
12047 lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
12050 struct lpfc_queue *cq;
12051 struct lpfc_cqe *cqe;
12052 bool workposted = false;
12056 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
12057 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12058 "0366 Not a valid completion "
12059 "event: majorcode=x%x, minorcode=x%x\n",
12060 bf_get_le32(lpfc_eqe_major_code, eqe),
12061 bf_get_le32(lpfc_eqe_minor_code, eqe));
12065 /* Get the reference to the corresponding CQ */
12066 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
12068 /* Check if this is a Slow path event */
12069 if (unlikely(cqid != phba->sli4_hba.fcp_cq_map[qidx])) {
12070 lpfc_sli4_sp_handle_eqe(phba, eqe,
12071 phba->sli4_hba.hba_eq[qidx]);
12075 if (unlikely(!phba->sli4_hba.fcp_cq)) {
12076 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12077 "3146 Fast-path completion queues "
12078 "does not exist\n");
12081 cq = phba->sli4_hba.fcp_cq[qidx];
12082 if (unlikely(!cq)) {
12083 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
12084 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12085 "0367 Fast-path completion queue "
12086 "(%d) does not exist\n", qidx);
12090 if (unlikely(cqid != cq->queue_id)) {
12091 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12092 "0368 Miss-matched fast-path completion "
12093 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
12094 cqid, cq->queue_id);
12098 /* Process all the entries to the CQ */
12099 while ((cqe = lpfc_sli4_cq_get(cq))) {
12100 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe);
12101 if (!(++ecount % cq->entry_repost))
12102 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
12105 /* Track the max number of CQEs processed in 1 EQ */
12106 if (ecount > cq->CQ_max_cqe)
12107 cq->CQ_max_cqe = ecount;
12109 /* Catch the no cq entry condition */
12110 if (unlikely(ecount == 0))
12111 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12112 "0369 No entry from fast-path completion "
12113 "queue fcpcqid=%d\n", cq->queue_id);
12115 /* In any case, flash and re-arm the CQ */
12116 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
12118 /* wake up worker thread if there are works to be done */
12120 lpfc_worker_wake_up(phba);
12124 lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
12126 struct lpfc_eqe *eqe;
12128 /* walk all the EQ entries and drop on the floor */
12129 while ((eqe = lpfc_sli4_eq_get(eq)))
12132 /* Clear and re-arm the EQ */
12133 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
12137 * lpfc_sli4_hba_intr_handler - HBA interrupt handler to SLI-4 device
12138 * @irq: Interrupt number.
12139 * @dev_id: The device context pointer.
12141 * This function is directly called from the PCI layer as an interrupt
12142 * service routine when device with SLI-4 interface spec is enabled with
12143 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
12144 * ring event in the HBA. However, when the device is enabled with either
12145 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
12146 * device-level interrupt handler. When the PCI slot is in error recovery
12147 * or the HBA is undergoing initialization, the interrupt handler will not
12148 * process the interrupt. The SCSI FCP fast-path ring event are handled in
12149 * the intrrupt context. This function is called without any lock held.
12150 * It gets the hbalock to access and update SLI data structures. Note that,
12151 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
12152 * equal to that of FCP CQ index.
12154 * The link attention and ELS ring attention events are handled
12155 * by the worker thread. The interrupt handler signals the worker thread
12156 * and returns for these events. This function is called without any lock
12157 * held. It gets the hbalock to access and update SLI data structures.
12159 * This function returns IRQ_HANDLED when interrupt is handled else it
12160 * returns IRQ_NONE.
12163 lpfc_sli4_hba_intr_handler(int irq, void *dev_id)
12165 struct lpfc_hba *phba;
12166 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
12167 struct lpfc_queue *fpeq;
12168 struct lpfc_eqe *eqe;
12169 unsigned long iflag;
12173 /* Get the driver's phba structure from the dev_id */
12174 fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id;
12175 phba = fcp_eq_hdl->phba;
12176 fcp_eqidx = fcp_eq_hdl->idx;
12178 if (unlikely(!phba))
12180 if (unlikely(!phba->sli4_hba.hba_eq))
12183 /* Get to the EQ struct associated with this vector */
12184 fpeq = phba->sli4_hba.hba_eq[fcp_eqidx];
12185 if (unlikely(!fpeq))
12188 if (lpfc_fcp_look_ahead) {
12189 if (atomic_dec_and_test(&fcp_eq_hdl->fcp_eq_in_use))
12190 lpfc_sli4_eq_clr_intr(fpeq);
12192 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12197 /* Check device state for handling interrupt */
12198 if (unlikely(lpfc_intr_state_check(phba))) {
12199 fpeq->EQ_badstate++;
12200 /* Check again for link_state with lock held */
12201 spin_lock_irqsave(&phba->hbalock, iflag);
12202 if (phba->link_state < LPFC_LINK_DOWN)
12203 /* Flush, clear interrupt, and rearm the EQ */
12204 lpfc_sli4_eq_flush(phba, fpeq);
12205 spin_unlock_irqrestore(&phba->hbalock, iflag);
12206 if (lpfc_fcp_look_ahead)
12207 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12212 * Process all the event on FCP fast-path EQ
12214 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
12215 lpfc_sli4_hba_handle_eqe(phba, eqe, fcp_eqidx);
12216 if (!(++ecount % fpeq->entry_repost))
12217 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM);
12218 fpeq->EQ_processed++;
12221 /* Track the max number of EQEs processed in 1 intr */
12222 if (ecount > fpeq->EQ_max_eqe)
12223 fpeq->EQ_max_eqe = ecount;
12225 /* Always clear and re-arm the fast-path EQ */
12226 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
12228 if (unlikely(ecount == 0)) {
12229 fpeq->EQ_no_entry++;
12231 if (lpfc_fcp_look_ahead) {
12232 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12236 if (phba->intr_type == MSIX)
12237 /* MSI-X treated interrupt served as no EQ share INT */
12238 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12239 "0358 MSI-X interrupt with no EQE\n");
12241 /* Non MSI-X treated on interrupt as EQ share INT */
12245 if (lpfc_fcp_look_ahead)
12246 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12247 return IRQ_HANDLED;
12248 } /* lpfc_sli4_fp_intr_handler */
12251 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
12252 * @irq: Interrupt number.
12253 * @dev_id: The device context pointer.
12255 * This function is the device-level interrupt handler to device with SLI-4
12256 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
12257 * interrupt mode is enabled and there is an event in the HBA which requires
12258 * driver attention. This function invokes the slow-path interrupt attention
12259 * handling function and fast-path interrupt attention handling function in
12260 * turn to process the relevant HBA attention events. This function is called
12261 * without any lock held. It gets the hbalock to access and update SLI data
12264 * This function returns IRQ_HANDLED when interrupt is handled, else it
12265 * returns IRQ_NONE.
12268 lpfc_sli4_intr_handler(int irq, void *dev_id)
12270 struct lpfc_hba *phba;
12271 irqreturn_t hba_irq_rc;
12272 bool hba_handled = false;
12275 /* Get the driver's phba structure from the dev_id */
12276 phba = (struct lpfc_hba *)dev_id;
12278 if (unlikely(!phba))
12282 * Invoke fast-path host attention interrupt handling as appropriate.
12284 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
12285 hba_irq_rc = lpfc_sli4_hba_intr_handler(irq,
12286 &phba->sli4_hba.fcp_eq_hdl[fcp_eqidx]);
12287 if (hba_irq_rc == IRQ_HANDLED)
12288 hba_handled |= true;
12291 return (hba_handled == true) ? IRQ_HANDLED : IRQ_NONE;
12292 } /* lpfc_sli4_intr_handler */
12295 * lpfc_sli4_queue_free - free a queue structure and associated memory
12296 * @queue: The queue structure to free.
12298 * This function frees a queue structure and the DMAable memory used for
12299 * the host resident queue. This function must be called after destroying the
12300 * queue on the HBA.
12303 lpfc_sli4_queue_free(struct lpfc_queue *queue)
12305 struct lpfc_dmabuf *dmabuf;
12310 while (!list_empty(&queue->page_list)) {
12311 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
12313 dma_free_coherent(&queue->phba->pcidev->dev, SLI4_PAGE_SIZE,
12314 dmabuf->virt, dmabuf->phys);
12322 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
12323 * @phba: The HBA that this queue is being created on.
12324 * @entry_size: The size of each queue entry for this queue.
12325 * @entry count: The number of entries that this queue will handle.
12327 * This function allocates a queue structure and the DMAable memory used for
12328 * the host resident queue. This function must be called before creating the
12329 * queue on the HBA.
12331 struct lpfc_queue *
12332 lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size,
12333 uint32_t entry_count)
12335 struct lpfc_queue *queue;
12336 struct lpfc_dmabuf *dmabuf;
12337 int x, total_qe_count;
12339 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12341 if (!phba->sli4_hba.pc_sli4_params.supported)
12342 hw_page_size = SLI4_PAGE_SIZE;
12344 queue = kzalloc(sizeof(struct lpfc_queue) +
12345 (sizeof(union sli4_qe) * entry_count), GFP_KERNEL);
12348 queue->page_count = (ALIGN(entry_size * entry_count,
12349 hw_page_size))/hw_page_size;
12350 INIT_LIST_HEAD(&queue->list);
12351 INIT_LIST_HEAD(&queue->page_list);
12352 INIT_LIST_HEAD(&queue->child_list);
12353 for (x = 0, total_qe_count = 0; x < queue->page_count; x++) {
12354 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
12357 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
12358 hw_page_size, &dmabuf->phys,
12360 if (!dmabuf->virt) {
12364 memset(dmabuf->virt, 0, hw_page_size);
12365 dmabuf->buffer_tag = x;
12366 list_add_tail(&dmabuf->list, &queue->page_list);
12367 /* initialize queue's entry array */
12368 dma_pointer = dmabuf->virt;
12369 for (; total_qe_count < entry_count &&
12370 dma_pointer < (hw_page_size + dmabuf->virt);
12371 total_qe_count++, dma_pointer += entry_size) {
12372 queue->qe[total_qe_count].address = dma_pointer;
12375 queue->entry_size = entry_size;
12376 queue->entry_count = entry_count;
12379 * entry_repost is calculated based on the number of entries in the
12380 * queue. This works out except for RQs. If buffers are NOT initially
12381 * posted for every RQE, entry_repost should be adjusted accordingly.
12383 queue->entry_repost = (entry_count >> 3);
12384 if (queue->entry_repost < LPFC_QUEUE_MIN_REPOST)
12385 queue->entry_repost = LPFC_QUEUE_MIN_REPOST;
12386 queue->phba = phba;
12390 lpfc_sli4_queue_free(queue);
12395 * lpfc_dual_chute_pci_bar_map - Map pci base address register to host memory
12396 * @phba: HBA structure that indicates port to create a queue on.
12397 * @pci_barset: PCI BAR set flag.
12399 * This function shall perform iomap of the specified PCI BAR address to host
12400 * memory address if not already done so and return it. The returned host
12401 * memory address can be NULL.
12403 static void __iomem *
12404 lpfc_dual_chute_pci_bar_map(struct lpfc_hba *phba, uint16_t pci_barset)
12406 struct pci_dev *pdev;
12411 pdev = phba->pcidev;
12413 switch (pci_barset) {
12414 case WQ_PCI_BAR_0_AND_1:
12415 return phba->pci_bar0_memmap_p;
12416 case WQ_PCI_BAR_2_AND_3:
12417 return phba->pci_bar2_memmap_p;
12418 case WQ_PCI_BAR_4_AND_5:
12419 return phba->pci_bar4_memmap_p;
12427 * lpfc_modify_fcp_eq_delay - Modify Delay Multiplier on FCP EQs
12428 * @phba: HBA structure that indicates port to create a queue on.
12429 * @startq: The starting FCP EQ to modify
12431 * This function sends an MODIFY_EQ_DELAY mailbox command to the HBA.
12433 * The @phba struct is used to send mailbox command to HBA. The @startq
12434 * is used to get the starting FCP EQ to change.
12435 * This function is asynchronous and will wait for the mailbox
12436 * command to finish before continuing.
12438 * On success this function will return a zero. If unable to allocate enough
12439 * memory this function will return -ENOMEM. If the queue create mailbox command
12440 * fails this function will return -ENXIO.
12443 lpfc_modify_fcp_eq_delay(struct lpfc_hba *phba, uint16_t startq)
12445 struct lpfc_mbx_modify_eq_delay *eq_delay;
12446 LPFC_MBOXQ_t *mbox;
12447 struct lpfc_queue *eq;
12448 int cnt, rc, length, status = 0;
12449 uint32_t shdr_status, shdr_add_status;
12452 union lpfc_sli4_cfg_shdr *shdr;
12455 if (startq >= phba->cfg_fcp_io_channel)
12458 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12461 length = (sizeof(struct lpfc_mbx_modify_eq_delay) -
12462 sizeof(struct lpfc_sli4_cfg_mhdr));
12463 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12464 LPFC_MBOX_OPCODE_MODIFY_EQ_DELAY,
12465 length, LPFC_SLI4_MBX_EMBED);
12466 eq_delay = &mbox->u.mqe.un.eq_delay;
12468 /* Calculate delay multiper from maximum interrupt per second */
12469 result = phba->cfg_fcp_imax / phba->cfg_fcp_io_channel;
12470 if (result > LPFC_DMULT_CONST)
12473 dmult = LPFC_DMULT_CONST/result - 1;
12476 for (fcp_eqidx = startq; fcp_eqidx < phba->cfg_fcp_io_channel;
12478 eq = phba->sli4_hba.hba_eq[fcp_eqidx];
12481 eq_delay->u.request.eq[cnt].eq_id = eq->queue_id;
12482 eq_delay->u.request.eq[cnt].phase = 0;
12483 eq_delay->u.request.eq[cnt].delay_multi = dmult;
12485 if (cnt >= LPFC_MAX_EQ_DELAY)
12488 eq_delay->u.request.num_eq = cnt;
12490 mbox->vport = phba->pport;
12491 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12492 mbox->context1 = NULL;
12493 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12494 shdr = (union lpfc_sli4_cfg_shdr *) &eq_delay->header.cfg_shdr;
12495 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12496 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12497 if (shdr_status || shdr_add_status || rc) {
12498 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12499 "2512 MODIFY_EQ_DELAY mailbox failed with "
12500 "status x%x add_status x%x, mbx status x%x\n",
12501 shdr_status, shdr_add_status, rc);
12504 mempool_free(mbox, phba->mbox_mem_pool);
12509 * lpfc_eq_create - Create an Event Queue on the HBA
12510 * @phba: HBA structure that indicates port to create a queue on.
12511 * @eq: The queue structure to use to create the event queue.
12512 * @imax: The maximum interrupt per second limit.
12514 * This function creates an event queue, as detailed in @eq, on a port,
12515 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
12517 * The @phba struct is used to send mailbox command to HBA. The @eq struct
12518 * is used to get the entry count and entry size that are necessary to
12519 * determine the number of pages to allocate and use for this queue. This
12520 * function will send the EQ_CREATE mailbox command to the HBA to setup the
12521 * event queue. This function is asynchronous and will wait for the mailbox
12522 * command to finish before continuing.
12524 * On success this function will return a zero. If unable to allocate enough
12525 * memory this function will return -ENOMEM. If the queue create mailbox command
12526 * fails this function will return -ENXIO.
12529 lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint32_t imax)
12531 struct lpfc_mbx_eq_create *eq_create;
12532 LPFC_MBOXQ_t *mbox;
12533 int rc, length, status = 0;
12534 struct lpfc_dmabuf *dmabuf;
12535 uint32_t shdr_status, shdr_add_status;
12536 union lpfc_sli4_cfg_shdr *shdr;
12538 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12540 /* sanity check on queue memory */
12543 if (!phba->sli4_hba.pc_sli4_params.supported)
12544 hw_page_size = SLI4_PAGE_SIZE;
12546 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12549 length = (sizeof(struct lpfc_mbx_eq_create) -
12550 sizeof(struct lpfc_sli4_cfg_mhdr));
12551 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12552 LPFC_MBOX_OPCODE_EQ_CREATE,
12553 length, LPFC_SLI4_MBX_EMBED);
12554 eq_create = &mbox->u.mqe.un.eq_create;
12555 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
12557 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
12559 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
12560 /* Calculate delay multiper from maximum interrupt per second */
12561 if (imax > LPFC_DMULT_CONST)
12564 dmult = LPFC_DMULT_CONST/imax - 1;
12565 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
12567 switch (eq->entry_count) {
12569 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12570 "0360 Unsupported EQ count. (%d)\n",
12572 if (eq->entry_count < 256)
12574 /* otherwise default to smallest count (drop through) */
12576 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12580 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12584 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12588 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12592 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12596 list_for_each_entry(dmabuf, &eq->page_list, list) {
12597 memset(dmabuf->virt, 0, hw_page_size);
12598 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
12599 putPaddrLow(dmabuf->phys);
12600 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
12601 putPaddrHigh(dmabuf->phys);
12603 mbox->vport = phba->pport;
12604 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12605 mbox->context1 = NULL;
12606 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12607 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
12608 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12609 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12610 if (shdr_status || shdr_add_status || rc) {
12611 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12612 "2500 EQ_CREATE mailbox failed with "
12613 "status x%x add_status x%x, mbx status x%x\n",
12614 shdr_status, shdr_add_status, rc);
12617 eq->type = LPFC_EQ;
12618 eq->subtype = LPFC_NONE;
12619 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
12620 if (eq->queue_id == 0xFFFF)
12622 eq->host_index = 0;
12625 mempool_free(mbox, phba->mbox_mem_pool);
12630 * lpfc_cq_create - Create a Completion Queue on the HBA
12631 * @phba: HBA structure that indicates port to create a queue on.
12632 * @cq: The queue structure to use to create the completion queue.
12633 * @eq: The event queue to bind this completion queue to.
12635 * This function creates a completion queue, as detailed in @wq, on a port,
12636 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
12638 * The @phba struct is used to send mailbox command to HBA. The @cq struct
12639 * is used to get the entry count and entry size that are necessary to
12640 * determine the number of pages to allocate and use for this queue. The @eq
12641 * is used to indicate which event queue to bind this completion queue to. This
12642 * function will send the CQ_CREATE mailbox command to the HBA to setup the
12643 * completion queue. This function is asynchronous and will wait for the mailbox
12644 * command to finish before continuing.
12646 * On success this function will return a zero. If unable to allocate enough
12647 * memory this function will return -ENOMEM. If the queue create mailbox command
12648 * fails this function will return -ENXIO.
12651 lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
12652 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
12654 struct lpfc_mbx_cq_create *cq_create;
12655 struct lpfc_dmabuf *dmabuf;
12656 LPFC_MBOXQ_t *mbox;
12657 int rc, length, status = 0;
12658 uint32_t shdr_status, shdr_add_status;
12659 union lpfc_sli4_cfg_shdr *shdr;
12660 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12662 /* sanity check on queue memory */
12665 if (!phba->sli4_hba.pc_sli4_params.supported)
12666 hw_page_size = SLI4_PAGE_SIZE;
12668 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12671 length = (sizeof(struct lpfc_mbx_cq_create) -
12672 sizeof(struct lpfc_sli4_cfg_mhdr));
12673 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12674 LPFC_MBOX_OPCODE_CQ_CREATE,
12675 length, LPFC_SLI4_MBX_EMBED);
12676 cq_create = &mbox->u.mqe.un.cq_create;
12677 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
12678 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
12680 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
12681 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
12682 bf_set(lpfc_mbox_hdr_version, &shdr->request,
12683 phba->sli4_hba.pc_sli4_params.cqv);
12684 if (phba->sli4_hba.pc_sli4_params.cqv == LPFC_Q_CREATE_VERSION_2) {
12685 /* FW only supports 1. Should be PAGE_SIZE/SLI4_PAGE_SIZE */
12686 bf_set(lpfc_mbx_cq_create_page_size, &cq_create->u.request, 1);
12687 bf_set(lpfc_cq_eq_id_2, &cq_create->u.request.context,
12690 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context,
12693 switch (cq->entry_count) {
12695 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12696 "0361 Unsupported CQ count. (%d)\n",
12698 if (cq->entry_count < 256) {
12702 /* otherwise default to smallest count (drop through) */
12704 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
12708 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
12712 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
12716 list_for_each_entry(dmabuf, &cq->page_list, list) {
12717 memset(dmabuf->virt, 0, hw_page_size);
12718 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
12719 putPaddrLow(dmabuf->phys);
12720 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
12721 putPaddrHigh(dmabuf->phys);
12723 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12725 /* The IOCTL status is embedded in the mailbox subheader. */
12726 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12727 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12728 if (shdr_status || shdr_add_status || rc) {
12729 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12730 "2501 CQ_CREATE mailbox failed with "
12731 "status x%x add_status x%x, mbx status x%x\n",
12732 shdr_status, shdr_add_status, rc);
12736 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
12737 if (cq->queue_id == 0xFFFF) {
12741 /* link the cq onto the parent eq child list */
12742 list_add_tail(&cq->list, &eq->child_list);
12743 /* Set up completion queue's type and subtype */
12745 cq->subtype = subtype;
12746 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
12747 cq->assoc_qid = eq->queue_id;
12748 cq->host_index = 0;
12752 mempool_free(mbox, phba->mbox_mem_pool);
12757 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
12758 * @phba: HBA structure that indicates port to create a queue on.
12759 * @mq: The queue structure to use to create the mailbox queue.
12760 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
12761 * @cq: The completion queue to associate with this cq.
12763 * This function provides failback (fb) functionality when the
12764 * mq_create_ext fails on older FW generations. It's purpose is identical
12765 * to mq_create_ext otherwise.
12767 * This routine cannot fail as all attributes were previously accessed and
12768 * initialized in mq_create_ext.
12771 lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq,
12772 LPFC_MBOXQ_t *mbox, struct lpfc_queue *cq)
12774 struct lpfc_mbx_mq_create *mq_create;
12775 struct lpfc_dmabuf *dmabuf;
12778 length = (sizeof(struct lpfc_mbx_mq_create) -
12779 sizeof(struct lpfc_sli4_cfg_mhdr));
12780 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12781 LPFC_MBOX_OPCODE_MQ_CREATE,
12782 length, LPFC_SLI4_MBX_EMBED);
12783 mq_create = &mbox->u.mqe.un.mq_create;
12784 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
12786 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
12788 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
12789 switch (mq->entry_count) {
12791 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
12792 LPFC_MQ_RING_SIZE_16);
12795 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
12796 LPFC_MQ_RING_SIZE_32);
12799 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
12800 LPFC_MQ_RING_SIZE_64);
12803 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
12804 LPFC_MQ_RING_SIZE_128);
12807 list_for_each_entry(dmabuf, &mq->page_list, list) {
12808 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
12809 putPaddrLow(dmabuf->phys);
12810 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
12811 putPaddrHigh(dmabuf->phys);
12816 * lpfc_mq_create - Create a mailbox Queue on the HBA
12817 * @phba: HBA structure that indicates port to create a queue on.
12818 * @mq: The queue structure to use to create the mailbox queue.
12819 * @cq: The completion queue to associate with this cq.
12820 * @subtype: The queue's subtype.
12822 * This function creates a mailbox queue, as detailed in @mq, on a port,
12823 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
12825 * The @phba struct is used to send mailbox command to HBA. The @cq struct
12826 * is used to get the entry count and entry size that are necessary to
12827 * determine the number of pages to allocate and use for this queue. This
12828 * function will send the MQ_CREATE mailbox command to the HBA to setup the
12829 * mailbox queue. This function is asynchronous and will wait for the mailbox
12830 * command to finish before continuing.
12832 * On success this function will return a zero. If unable to allocate enough
12833 * memory this function will return -ENOMEM. If the queue create mailbox command
12834 * fails this function will return -ENXIO.
12837 lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
12838 struct lpfc_queue *cq, uint32_t subtype)
12840 struct lpfc_mbx_mq_create *mq_create;
12841 struct lpfc_mbx_mq_create_ext *mq_create_ext;
12842 struct lpfc_dmabuf *dmabuf;
12843 LPFC_MBOXQ_t *mbox;
12844 int rc, length, status = 0;
12845 uint32_t shdr_status, shdr_add_status;
12846 union lpfc_sli4_cfg_shdr *shdr;
12847 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12849 /* sanity check on queue memory */
12852 if (!phba->sli4_hba.pc_sli4_params.supported)
12853 hw_page_size = SLI4_PAGE_SIZE;
12855 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12858 length = (sizeof(struct lpfc_mbx_mq_create_ext) -
12859 sizeof(struct lpfc_sli4_cfg_mhdr));
12860 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12861 LPFC_MBOX_OPCODE_MQ_CREATE_EXT,
12862 length, LPFC_SLI4_MBX_EMBED);
12864 mq_create_ext = &mbox->u.mqe.un.mq_create_ext;
12865 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr;
12866 bf_set(lpfc_mbx_mq_create_ext_num_pages,
12867 &mq_create_ext->u.request, mq->page_count);
12868 bf_set(lpfc_mbx_mq_create_ext_async_evt_link,
12869 &mq_create_ext->u.request, 1);
12870 bf_set(lpfc_mbx_mq_create_ext_async_evt_fip,
12871 &mq_create_ext->u.request, 1);
12872 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5,
12873 &mq_create_ext->u.request, 1);
12874 bf_set(lpfc_mbx_mq_create_ext_async_evt_fc,
12875 &mq_create_ext->u.request, 1);
12876 bf_set(lpfc_mbx_mq_create_ext_async_evt_sli,
12877 &mq_create_ext->u.request, 1);
12878 bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1);
12879 bf_set(lpfc_mbox_hdr_version, &shdr->request,
12880 phba->sli4_hba.pc_sli4_params.mqv);
12881 if (phba->sli4_hba.pc_sli4_params.mqv == LPFC_Q_CREATE_VERSION_1)
12882 bf_set(lpfc_mbx_mq_create_ext_cq_id, &mq_create_ext->u.request,
12885 bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context,
12887 switch (mq->entry_count) {
12889 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12890 "0362 Unsupported MQ count. (%d)\n",
12892 if (mq->entry_count < 16) {
12896 /* otherwise default to smallest count (drop through) */
12898 bf_set(lpfc_mq_context_ring_size,
12899 &mq_create_ext->u.request.context,
12900 LPFC_MQ_RING_SIZE_16);
12903 bf_set(lpfc_mq_context_ring_size,
12904 &mq_create_ext->u.request.context,
12905 LPFC_MQ_RING_SIZE_32);
12908 bf_set(lpfc_mq_context_ring_size,
12909 &mq_create_ext->u.request.context,
12910 LPFC_MQ_RING_SIZE_64);
12913 bf_set(lpfc_mq_context_ring_size,
12914 &mq_create_ext->u.request.context,
12915 LPFC_MQ_RING_SIZE_128);
12918 list_for_each_entry(dmabuf, &mq->page_list, list) {
12919 memset(dmabuf->virt, 0, hw_page_size);
12920 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_lo =
12921 putPaddrLow(dmabuf->phys);
12922 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_hi =
12923 putPaddrHigh(dmabuf->phys);
12925 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12926 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
12927 &mq_create_ext->u.response);
12928 if (rc != MBX_SUCCESS) {
12929 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12930 "2795 MQ_CREATE_EXT failed with "
12931 "status x%x. Failback to MQ_CREATE.\n",
12933 lpfc_mq_create_fb_init(phba, mq, mbox, cq);
12934 mq_create = &mbox->u.mqe.un.mq_create;
12935 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12936 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
12937 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
12938 &mq_create->u.response);
12941 /* The IOCTL status is embedded in the mailbox subheader. */
12942 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12943 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12944 if (shdr_status || shdr_add_status || rc) {
12945 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12946 "2502 MQ_CREATE mailbox failed with "
12947 "status x%x add_status x%x, mbx status x%x\n",
12948 shdr_status, shdr_add_status, rc);
12952 if (mq->queue_id == 0xFFFF) {
12956 mq->type = LPFC_MQ;
12957 mq->assoc_qid = cq->queue_id;
12958 mq->subtype = subtype;
12959 mq->host_index = 0;
12962 /* link the mq onto the parent cq child list */
12963 list_add_tail(&mq->list, &cq->child_list);
12965 mempool_free(mbox, phba->mbox_mem_pool);
12970 * lpfc_wq_create - Create a Work Queue on the HBA
12971 * @phba: HBA structure that indicates port to create a queue on.
12972 * @wq: The queue structure to use to create the work queue.
12973 * @cq: The completion queue to bind this work queue to.
12974 * @subtype: The subtype of the work queue indicating its functionality.
12976 * This function creates a work queue, as detailed in @wq, on a port, described
12977 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
12979 * The @phba struct is used to send mailbox command to HBA. The @wq struct
12980 * is used to get the entry count and entry size that are necessary to
12981 * determine the number of pages to allocate and use for this queue. The @cq
12982 * is used to indicate which completion queue to bind this work queue to. This
12983 * function will send the WQ_CREATE mailbox command to the HBA to setup the
12984 * work queue. This function is asynchronous and will wait for the mailbox
12985 * command to finish before continuing.
12987 * On success this function will return a zero. If unable to allocate enough
12988 * memory this function will return -ENOMEM. If the queue create mailbox command
12989 * fails this function will return -ENXIO.
12992 lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
12993 struct lpfc_queue *cq, uint32_t subtype)
12995 struct lpfc_mbx_wq_create *wq_create;
12996 struct lpfc_dmabuf *dmabuf;
12997 LPFC_MBOXQ_t *mbox;
12998 int rc, length, status = 0;
12999 uint32_t shdr_status, shdr_add_status;
13000 union lpfc_sli4_cfg_shdr *shdr;
13001 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
13002 struct dma_address *page;
13003 void __iomem *bar_memmap_p;
13004 uint32_t db_offset;
13005 uint16_t pci_barset;
13007 /* sanity check on queue memory */
13010 if (!phba->sli4_hba.pc_sli4_params.supported)
13011 hw_page_size = SLI4_PAGE_SIZE;
13013 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13016 length = (sizeof(struct lpfc_mbx_wq_create) -
13017 sizeof(struct lpfc_sli4_cfg_mhdr));
13018 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13019 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
13020 length, LPFC_SLI4_MBX_EMBED);
13021 wq_create = &mbox->u.mqe.un.wq_create;
13022 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
13023 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
13025 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
13028 /* wqv is the earliest version supported, NOT the latest */
13029 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13030 phba->sli4_hba.pc_sli4_params.wqv);
13032 switch (phba->sli4_hba.pc_sli4_params.wqv) {
13033 case LPFC_Q_CREATE_VERSION_0:
13034 switch (wq->entry_size) {
13037 /* Nothing to do, version 0 ONLY supports 64 byte */
13038 page = wq_create->u.request.page;
13041 if (!(phba->sli4_hba.pc_sli4_params.wqsize &
13042 LPFC_WQ_SZ128_SUPPORT)) {
13046 /* If we get here the HBA MUST also support V1 and
13049 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13050 LPFC_Q_CREATE_VERSION_1);
13052 bf_set(lpfc_mbx_wq_create_wqe_count,
13053 &wq_create->u.request_1, wq->entry_count);
13054 bf_set(lpfc_mbx_wq_create_wqe_size,
13055 &wq_create->u.request_1,
13056 LPFC_WQ_WQE_SIZE_128);
13057 bf_set(lpfc_mbx_wq_create_page_size,
13058 &wq_create->u.request_1,
13059 (PAGE_SIZE/SLI4_PAGE_SIZE));
13060 page = wq_create->u.request_1.page;
13064 case LPFC_Q_CREATE_VERSION_1:
13065 bf_set(lpfc_mbx_wq_create_wqe_count, &wq_create->u.request_1,
13067 switch (wq->entry_size) {
13070 bf_set(lpfc_mbx_wq_create_wqe_size,
13071 &wq_create->u.request_1,
13072 LPFC_WQ_WQE_SIZE_64);
13075 if (!(phba->sli4_hba.pc_sli4_params.wqsize &
13076 LPFC_WQ_SZ128_SUPPORT)) {
13080 bf_set(lpfc_mbx_wq_create_wqe_size,
13081 &wq_create->u.request_1,
13082 LPFC_WQ_WQE_SIZE_128);
13085 bf_set(lpfc_mbx_wq_create_page_size, &wq_create->u.request_1,
13086 (PAGE_SIZE/SLI4_PAGE_SIZE));
13087 page = wq_create->u.request_1.page;
13094 list_for_each_entry(dmabuf, &wq->page_list, list) {
13095 memset(dmabuf->virt, 0, hw_page_size);
13096 page[dmabuf->buffer_tag].addr_lo = putPaddrLow(dmabuf->phys);
13097 page[dmabuf->buffer_tag].addr_hi = putPaddrHigh(dmabuf->phys);
13100 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
13101 bf_set(lpfc_mbx_wq_create_dua, &wq_create->u.request, 1);
13103 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13104 /* The IOCTL status is embedded in the mailbox subheader. */
13105 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13106 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13107 if (shdr_status || shdr_add_status || rc) {
13108 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13109 "2503 WQ_CREATE mailbox failed with "
13110 "status x%x add_status x%x, mbx status x%x\n",
13111 shdr_status, shdr_add_status, rc);
13115 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response);
13116 if (wq->queue_id == 0xFFFF) {
13120 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
13121 wq->db_format = bf_get(lpfc_mbx_wq_create_db_format,
13122 &wq_create->u.response);
13123 if ((wq->db_format != LPFC_DB_LIST_FORMAT) &&
13124 (wq->db_format != LPFC_DB_RING_FORMAT)) {
13125 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13126 "3265 WQ[%d] doorbell format not "
13127 "supported: x%x\n", wq->queue_id,
13132 pci_barset = bf_get(lpfc_mbx_wq_create_bar_set,
13133 &wq_create->u.response);
13134 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
13135 if (!bar_memmap_p) {
13136 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13137 "3263 WQ[%d] failed to memmap pci "
13138 "barset:x%x\n", wq->queue_id,
13143 db_offset = wq_create->u.response.doorbell_offset;
13144 if ((db_offset != LPFC_ULP0_WQ_DOORBELL) &&
13145 (db_offset != LPFC_ULP1_WQ_DOORBELL)) {
13146 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13147 "3252 WQ[%d] doorbell offset not "
13148 "supported: x%x\n", wq->queue_id,
13153 wq->db_regaddr = bar_memmap_p + db_offset;
13154 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13155 "3264 WQ[%d]: barset:x%x, offset:x%x, "
13156 "format:x%x\n", wq->queue_id, pci_barset,
13157 db_offset, wq->db_format);
13159 wq->db_format = LPFC_DB_LIST_FORMAT;
13160 wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
13162 wq->type = LPFC_WQ;
13163 wq->assoc_qid = cq->queue_id;
13164 wq->subtype = subtype;
13165 wq->host_index = 0;
13167 wq->entry_repost = LPFC_RELEASE_NOTIFICATION_INTERVAL;
13169 /* link the wq onto the parent cq child list */
13170 list_add_tail(&wq->list, &cq->child_list);
13172 mempool_free(mbox, phba->mbox_mem_pool);
13177 * lpfc_rq_adjust_repost - Adjust entry_repost for an RQ
13178 * @phba: HBA structure that indicates port to create a queue on.
13179 * @rq: The queue structure to use for the receive queue.
13180 * @qno: The associated HBQ number
13183 * For SLI4 we need to adjust the RQ repost value based on
13184 * the number of buffers that are initially posted to the RQ.
13187 lpfc_rq_adjust_repost(struct lpfc_hba *phba, struct lpfc_queue *rq, int qno)
13191 /* sanity check on queue memory */
13194 cnt = lpfc_hbq_defs[qno]->entry_count;
13196 /* Recalc repost for RQs based on buffers initially posted */
13198 if (cnt < LPFC_QUEUE_MIN_REPOST)
13199 cnt = LPFC_QUEUE_MIN_REPOST;
13201 rq->entry_repost = cnt;
13205 * lpfc_rq_create - Create a Receive Queue on the HBA
13206 * @phba: HBA structure that indicates port to create a queue on.
13207 * @hrq: The queue structure to use to create the header receive queue.
13208 * @drq: The queue structure to use to create the data receive queue.
13209 * @cq: The completion queue to bind this work queue to.
13211 * This function creates a receive buffer queue pair , as detailed in @hrq and
13212 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
13215 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
13216 * struct is used to get the entry count that is necessary to determine the
13217 * number of pages to use for this queue. The @cq is used to indicate which
13218 * completion queue to bind received buffers that are posted to these queues to.
13219 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
13220 * receive queue pair. This function is asynchronous and will wait for the
13221 * mailbox command to finish before continuing.
13223 * On success this function will return a zero. If unable to allocate enough
13224 * memory this function will return -ENOMEM. If the queue create mailbox command
13225 * fails this function will return -ENXIO.
13228 lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
13229 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
13231 struct lpfc_mbx_rq_create *rq_create;
13232 struct lpfc_dmabuf *dmabuf;
13233 LPFC_MBOXQ_t *mbox;
13234 int rc, length, status = 0;
13235 uint32_t shdr_status, shdr_add_status;
13236 union lpfc_sli4_cfg_shdr *shdr;
13237 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
13238 void __iomem *bar_memmap_p;
13239 uint32_t db_offset;
13240 uint16_t pci_barset;
13242 /* sanity check on queue memory */
13243 if (!hrq || !drq || !cq)
13245 if (!phba->sli4_hba.pc_sli4_params.supported)
13246 hw_page_size = SLI4_PAGE_SIZE;
13248 if (hrq->entry_count != drq->entry_count)
13250 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13253 length = (sizeof(struct lpfc_mbx_rq_create) -
13254 sizeof(struct lpfc_sli4_cfg_mhdr));
13255 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13256 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
13257 length, LPFC_SLI4_MBX_EMBED);
13258 rq_create = &mbox->u.mqe.un.rq_create;
13259 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
13260 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13261 phba->sli4_hba.pc_sli4_params.rqv);
13262 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
13263 bf_set(lpfc_rq_context_rqe_count_1,
13264 &rq_create->u.request.context,
13266 rq_create->u.request.context.buffer_size = LPFC_HDR_BUF_SIZE;
13267 bf_set(lpfc_rq_context_rqe_size,
13268 &rq_create->u.request.context,
13270 bf_set(lpfc_rq_context_page_size,
13271 &rq_create->u.request.context,
13272 (PAGE_SIZE/SLI4_PAGE_SIZE));
13274 switch (hrq->entry_count) {
13276 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13277 "2535 Unsupported RQ count. (%d)\n",
13279 if (hrq->entry_count < 512) {
13283 /* otherwise default to smallest count (drop through) */
13285 bf_set(lpfc_rq_context_rqe_count,
13286 &rq_create->u.request.context,
13287 LPFC_RQ_RING_SIZE_512);
13290 bf_set(lpfc_rq_context_rqe_count,
13291 &rq_create->u.request.context,
13292 LPFC_RQ_RING_SIZE_1024);
13295 bf_set(lpfc_rq_context_rqe_count,
13296 &rq_create->u.request.context,
13297 LPFC_RQ_RING_SIZE_2048);
13300 bf_set(lpfc_rq_context_rqe_count,
13301 &rq_create->u.request.context,
13302 LPFC_RQ_RING_SIZE_4096);
13305 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
13306 LPFC_HDR_BUF_SIZE);
13308 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
13310 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
13312 list_for_each_entry(dmabuf, &hrq->page_list, list) {
13313 memset(dmabuf->virt, 0, hw_page_size);
13314 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13315 putPaddrLow(dmabuf->phys);
13316 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13317 putPaddrHigh(dmabuf->phys);
13319 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
13320 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
13322 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13323 /* The IOCTL status is embedded in the mailbox subheader. */
13324 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13325 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13326 if (shdr_status || shdr_add_status || rc) {
13327 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13328 "2504 RQ_CREATE mailbox failed with "
13329 "status x%x add_status x%x, mbx status x%x\n",
13330 shdr_status, shdr_add_status, rc);
13334 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
13335 if (hrq->queue_id == 0xFFFF) {
13340 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
13341 hrq->db_format = bf_get(lpfc_mbx_rq_create_db_format,
13342 &rq_create->u.response);
13343 if ((hrq->db_format != LPFC_DB_LIST_FORMAT) &&
13344 (hrq->db_format != LPFC_DB_RING_FORMAT)) {
13345 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13346 "3262 RQ [%d] doorbell format not "
13347 "supported: x%x\n", hrq->queue_id,
13353 pci_barset = bf_get(lpfc_mbx_rq_create_bar_set,
13354 &rq_create->u.response);
13355 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
13356 if (!bar_memmap_p) {
13357 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13358 "3269 RQ[%d] failed to memmap pci "
13359 "barset:x%x\n", hrq->queue_id,
13365 db_offset = rq_create->u.response.doorbell_offset;
13366 if ((db_offset != LPFC_ULP0_RQ_DOORBELL) &&
13367 (db_offset != LPFC_ULP1_RQ_DOORBELL)) {
13368 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13369 "3270 RQ[%d] doorbell offset not "
13370 "supported: x%x\n", hrq->queue_id,
13375 hrq->db_regaddr = bar_memmap_p + db_offset;
13376 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13377 "3266 RQ[qid:%d]: barset:x%x, offset:x%x, "
13378 "format:x%x\n", hrq->queue_id, pci_barset,
13379 db_offset, hrq->db_format);
13381 hrq->db_format = LPFC_DB_RING_FORMAT;
13382 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
13384 hrq->type = LPFC_HRQ;
13385 hrq->assoc_qid = cq->queue_id;
13386 hrq->subtype = subtype;
13387 hrq->host_index = 0;
13388 hrq->hba_index = 0;
13390 /* now create the data queue */
13391 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13392 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
13393 length, LPFC_SLI4_MBX_EMBED);
13394 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13395 phba->sli4_hba.pc_sli4_params.rqv);
13396 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
13397 bf_set(lpfc_rq_context_rqe_count_1,
13398 &rq_create->u.request.context, hrq->entry_count);
13399 rq_create->u.request.context.buffer_size = LPFC_DATA_BUF_SIZE;
13400 bf_set(lpfc_rq_context_rqe_size, &rq_create->u.request.context,
13402 bf_set(lpfc_rq_context_page_size, &rq_create->u.request.context,
13403 (PAGE_SIZE/SLI4_PAGE_SIZE));
13405 switch (drq->entry_count) {
13407 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13408 "2536 Unsupported RQ count. (%d)\n",
13410 if (drq->entry_count < 512) {
13414 /* otherwise default to smallest count (drop through) */
13416 bf_set(lpfc_rq_context_rqe_count,
13417 &rq_create->u.request.context,
13418 LPFC_RQ_RING_SIZE_512);
13421 bf_set(lpfc_rq_context_rqe_count,
13422 &rq_create->u.request.context,
13423 LPFC_RQ_RING_SIZE_1024);
13426 bf_set(lpfc_rq_context_rqe_count,
13427 &rq_create->u.request.context,
13428 LPFC_RQ_RING_SIZE_2048);
13431 bf_set(lpfc_rq_context_rqe_count,
13432 &rq_create->u.request.context,
13433 LPFC_RQ_RING_SIZE_4096);
13436 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
13437 LPFC_DATA_BUF_SIZE);
13439 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
13441 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
13443 list_for_each_entry(dmabuf, &drq->page_list, list) {
13444 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13445 putPaddrLow(dmabuf->phys);
13446 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13447 putPaddrHigh(dmabuf->phys);
13449 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
13450 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
13451 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13452 /* The IOCTL status is embedded in the mailbox subheader. */
13453 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
13454 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13455 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13456 if (shdr_status || shdr_add_status || rc) {
13460 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
13461 if (drq->queue_id == 0xFFFF) {
13465 drq->type = LPFC_DRQ;
13466 drq->assoc_qid = cq->queue_id;
13467 drq->subtype = subtype;
13468 drq->host_index = 0;
13469 drq->hba_index = 0;
13471 /* link the header and data RQs onto the parent cq child list */
13472 list_add_tail(&hrq->list, &cq->child_list);
13473 list_add_tail(&drq->list, &cq->child_list);
13476 mempool_free(mbox, phba->mbox_mem_pool);
13481 * lpfc_eq_destroy - Destroy an event Queue on the HBA
13482 * @eq: The queue structure associated with the queue to destroy.
13484 * This function destroys a queue, as detailed in @eq by sending an mailbox
13485 * command, specific to the type of queue, to the HBA.
13487 * The @eq struct is used to get the queue ID of the queue to destroy.
13489 * On success this function will return a zero. If the queue destroy mailbox
13490 * command fails this function will return -ENXIO.
13493 lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
13495 LPFC_MBOXQ_t *mbox;
13496 int rc, length, status = 0;
13497 uint32_t shdr_status, shdr_add_status;
13498 union lpfc_sli4_cfg_shdr *shdr;
13500 /* sanity check on queue memory */
13503 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
13506 length = (sizeof(struct lpfc_mbx_eq_destroy) -
13507 sizeof(struct lpfc_sli4_cfg_mhdr));
13508 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13509 LPFC_MBOX_OPCODE_EQ_DESTROY,
13510 length, LPFC_SLI4_MBX_EMBED);
13511 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
13513 mbox->vport = eq->phba->pport;
13514 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13516 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
13517 /* The IOCTL status is embedded in the mailbox subheader. */
13518 shdr = (union lpfc_sli4_cfg_shdr *)
13519 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
13520 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13521 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13522 if (shdr_status || shdr_add_status || rc) {
13523 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13524 "2505 EQ_DESTROY mailbox failed with "
13525 "status x%x add_status x%x, mbx status x%x\n",
13526 shdr_status, shdr_add_status, rc);
13530 /* Remove eq from any list */
13531 list_del_init(&eq->list);
13532 mempool_free(mbox, eq->phba->mbox_mem_pool);
13537 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
13538 * @cq: The queue structure associated with the queue to destroy.
13540 * This function destroys a queue, as detailed in @cq by sending an mailbox
13541 * command, specific to the type of queue, to the HBA.
13543 * The @cq struct is used to get the queue ID of the queue to destroy.
13545 * On success this function will return a zero. If the queue destroy mailbox
13546 * command fails this function will return -ENXIO.
13549 lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
13551 LPFC_MBOXQ_t *mbox;
13552 int rc, length, status = 0;
13553 uint32_t shdr_status, shdr_add_status;
13554 union lpfc_sli4_cfg_shdr *shdr;
13556 /* sanity check on queue memory */
13559 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
13562 length = (sizeof(struct lpfc_mbx_cq_destroy) -
13563 sizeof(struct lpfc_sli4_cfg_mhdr));
13564 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13565 LPFC_MBOX_OPCODE_CQ_DESTROY,
13566 length, LPFC_SLI4_MBX_EMBED);
13567 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
13569 mbox->vport = cq->phba->pport;
13570 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13571 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
13572 /* The IOCTL status is embedded in the mailbox subheader. */
13573 shdr = (union lpfc_sli4_cfg_shdr *)
13574 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
13575 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13576 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13577 if (shdr_status || shdr_add_status || rc) {
13578 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13579 "2506 CQ_DESTROY mailbox failed with "
13580 "status x%x add_status x%x, mbx status x%x\n",
13581 shdr_status, shdr_add_status, rc);
13584 /* Remove cq from any list */
13585 list_del_init(&cq->list);
13586 mempool_free(mbox, cq->phba->mbox_mem_pool);
13591 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
13592 * @qm: The queue structure associated with the queue to destroy.
13594 * This function destroys a queue, as detailed in @mq by sending an mailbox
13595 * command, specific to the type of queue, to the HBA.
13597 * The @mq struct is used to get the queue ID of the queue to destroy.
13599 * On success this function will return a zero. If the queue destroy mailbox
13600 * command fails this function will return -ENXIO.
13603 lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
13605 LPFC_MBOXQ_t *mbox;
13606 int rc, length, status = 0;
13607 uint32_t shdr_status, shdr_add_status;
13608 union lpfc_sli4_cfg_shdr *shdr;
13610 /* sanity check on queue memory */
13613 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
13616 length = (sizeof(struct lpfc_mbx_mq_destroy) -
13617 sizeof(struct lpfc_sli4_cfg_mhdr));
13618 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13619 LPFC_MBOX_OPCODE_MQ_DESTROY,
13620 length, LPFC_SLI4_MBX_EMBED);
13621 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
13623 mbox->vport = mq->phba->pport;
13624 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13625 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
13626 /* The IOCTL status is embedded in the mailbox subheader. */
13627 shdr = (union lpfc_sli4_cfg_shdr *)
13628 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
13629 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13630 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13631 if (shdr_status || shdr_add_status || rc) {
13632 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13633 "2507 MQ_DESTROY mailbox failed with "
13634 "status x%x add_status x%x, mbx status x%x\n",
13635 shdr_status, shdr_add_status, rc);
13638 /* Remove mq from any list */
13639 list_del_init(&mq->list);
13640 mempool_free(mbox, mq->phba->mbox_mem_pool);
13645 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
13646 * @wq: The queue structure associated with the queue to destroy.
13648 * This function destroys a queue, as detailed in @wq by sending an mailbox
13649 * command, specific to the type of queue, to the HBA.
13651 * The @wq struct is used to get the queue ID of the queue to destroy.
13653 * On success this function will return a zero. If the queue destroy mailbox
13654 * command fails this function will return -ENXIO.
13657 lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
13659 LPFC_MBOXQ_t *mbox;
13660 int rc, length, status = 0;
13661 uint32_t shdr_status, shdr_add_status;
13662 union lpfc_sli4_cfg_shdr *shdr;
13664 /* sanity check on queue memory */
13667 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
13670 length = (sizeof(struct lpfc_mbx_wq_destroy) -
13671 sizeof(struct lpfc_sli4_cfg_mhdr));
13672 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13673 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
13674 length, LPFC_SLI4_MBX_EMBED);
13675 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
13677 mbox->vport = wq->phba->pport;
13678 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13679 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
13680 shdr = (union lpfc_sli4_cfg_shdr *)
13681 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
13682 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13683 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13684 if (shdr_status || shdr_add_status || rc) {
13685 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13686 "2508 WQ_DESTROY mailbox failed with "
13687 "status x%x add_status x%x, mbx status x%x\n",
13688 shdr_status, shdr_add_status, rc);
13691 /* Remove wq from any list */
13692 list_del_init(&wq->list);
13693 mempool_free(mbox, wq->phba->mbox_mem_pool);
13698 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
13699 * @rq: The queue structure associated with the queue to destroy.
13701 * This function destroys a queue, as detailed in @rq by sending an mailbox
13702 * command, specific to the type of queue, to the HBA.
13704 * The @rq struct is used to get the queue ID of the queue to destroy.
13706 * On success this function will return a zero. If the queue destroy mailbox
13707 * command fails this function will return -ENXIO.
13710 lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
13711 struct lpfc_queue *drq)
13713 LPFC_MBOXQ_t *mbox;
13714 int rc, length, status = 0;
13715 uint32_t shdr_status, shdr_add_status;
13716 union lpfc_sli4_cfg_shdr *shdr;
13718 /* sanity check on queue memory */
13721 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
13724 length = (sizeof(struct lpfc_mbx_rq_destroy) -
13725 sizeof(struct lpfc_sli4_cfg_mhdr));
13726 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13727 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
13728 length, LPFC_SLI4_MBX_EMBED);
13729 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
13731 mbox->vport = hrq->phba->pport;
13732 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13733 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
13734 /* The IOCTL status is embedded in the mailbox subheader. */
13735 shdr = (union lpfc_sli4_cfg_shdr *)
13736 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
13737 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13738 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13739 if (shdr_status || shdr_add_status || rc) {
13740 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13741 "2509 RQ_DESTROY mailbox failed with "
13742 "status x%x add_status x%x, mbx status x%x\n",
13743 shdr_status, shdr_add_status, rc);
13744 if (rc != MBX_TIMEOUT)
13745 mempool_free(mbox, hrq->phba->mbox_mem_pool);
13748 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
13750 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
13751 shdr = (union lpfc_sli4_cfg_shdr *)
13752 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
13753 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13754 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13755 if (shdr_status || shdr_add_status || rc) {
13756 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13757 "2510 RQ_DESTROY mailbox failed with "
13758 "status x%x add_status x%x, mbx status x%x\n",
13759 shdr_status, shdr_add_status, rc);
13762 list_del_init(&hrq->list);
13763 list_del_init(&drq->list);
13764 mempool_free(mbox, hrq->phba->mbox_mem_pool);
13769 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
13770 * @phba: The virtual port for which this call being executed.
13771 * @pdma_phys_addr0: Physical address of the 1st SGL page.
13772 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
13773 * @xritag: the xritag that ties this io to the SGL pages.
13775 * This routine will post the sgl pages for the IO that has the xritag
13776 * that is in the iocbq structure. The xritag is assigned during iocbq
13777 * creation and persists for as long as the driver is loaded.
13778 * if the caller has fewer than 256 scatter gather segments to map then
13779 * pdma_phys_addr1 should be 0.
13780 * If the caller needs to map more than 256 scatter gather segment then
13781 * pdma_phys_addr1 should be a valid physical address.
13782 * physical address for SGLs must be 64 byte aligned.
13783 * If you are going to map 2 SGL's then the first one must have 256 entries
13784 * the second sgl can have between 1 and 256 entries.
13788 * -ENXIO, -ENOMEM - Failure
13791 lpfc_sli4_post_sgl(struct lpfc_hba *phba,
13792 dma_addr_t pdma_phys_addr0,
13793 dma_addr_t pdma_phys_addr1,
13796 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
13797 LPFC_MBOXQ_t *mbox;
13799 uint32_t shdr_status, shdr_add_status;
13801 union lpfc_sli4_cfg_shdr *shdr;
13803 if (xritag == NO_XRI) {
13804 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13805 "0364 Invalid param:\n");
13809 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13813 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13814 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
13815 sizeof(struct lpfc_mbx_post_sgl_pages) -
13816 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
13818 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
13819 &mbox->u.mqe.un.post_sgl_pages;
13820 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
13821 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
13823 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
13824 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
13825 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
13826 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
13828 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
13829 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
13830 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
13831 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
13832 if (!phba->sli4_hba.intr_enable)
13833 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13835 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
13836 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
13838 /* The IOCTL status is embedded in the mailbox subheader. */
13839 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
13840 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13841 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13842 if (rc != MBX_TIMEOUT)
13843 mempool_free(mbox, phba->mbox_mem_pool);
13844 if (shdr_status || shdr_add_status || rc) {
13845 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13846 "2511 POST_SGL mailbox failed with "
13847 "status x%x add_status x%x, mbx status x%x\n",
13848 shdr_status, shdr_add_status, rc);
13855 * lpfc_sli4_alloc_xri - Get an available rpi in the device's range
13856 * @phba: pointer to lpfc hba data structure.
13858 * This routine is invoked to post rpi header templates to the
13859 * HBA consistent with the SLI-4 interface spec. This routine
13860 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
13861 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
13864 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
13865 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
13868 lpfc_sli4_alloc_xri(struct lpfc_hba *phba)
13873 * Fetch the next logical xri. Because this index is logical,
13874 * the driver starts at 0 each time.
13876 spin_lock_irq(&phba->hbalock);
13877 xri = find_next_zero_bit(phba->sli4_hba.xri_bmask,
13878 phba->sli4_hba.max_cfg_param.max_xri, 0);
13879 if (xri >= phba->sli4_hba.max_cfg_param.max_xri) {
13880 spin_unlock_irq(&phba->hbalock);
13883 set_bit(xri, phba->sli4_hba.xri_bmask);
13884 phba->sli4_hba.max_cfg_param.xri_used++;
13886 spin_unlock_irq(&phba->hbalock);
13891 * lpfc_sli4_free_xri - Release an xri for reuse.
13892 * @phba: pointer to lpfc hba data structure.
13894 * This routine is invoked to release an xri to the pool of
13895 * available rpis maintained by the driver.
13898 __lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
13900 if (test_and_clear_bit(xri, phba->sli4_hba.xri_bmask)) {
13901 phba->sli4_hba.max_cfg_param.xri_used--;
13906 * lpfc_sli4_free_xri - Release an xri for reuse.
13907 * @phba: pointer to lpfc hba data structure.
13909 * This routine is invoked to release an xri to the pool of
13910 * available rpis maintained by the driver.
13913 lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
13915 spin_lock_irq(&phba->hbalock);
13916 __lpfc_sli4_free_xri(phba, xri);
13917 spin_unlock_irq(&phba->hbalock);
13921 * lpfc_sli4_next_xritag - Get an xritag for the io
13922 * @phba: Pointer to HBA context object.
13924 * This function gets an xritag for the iocb. If there is no unused xritag
13925 * it will return 0xffff.
13926 * The function returns the allocated xritag if successful, else returns zero.
13927 * Zero is not a valid xritag.
13928 * The caller is not required to hold any lock.
13931 lpfc_sli4_next_xritag(struct lpfc_hba *phba)
13933 uint16_t xri_index;
13935 xri_index = lpfc_sli4_alloc_xri(phba);
13936 if (xri_index == NO_XRI)
13937 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13938 "2004 Failed to allocate XRI.last XRITAG is %d"
13939 " Max XRI is %d, Used XRI is %d\n",
13941 phba->sli4_hba.max_cfg_param.max_xri,
13942 phba->sli4_hba.max_cfg_param.xri_used);
13947 * lpfc_sli4_post_els_sgl_list - post a block of ELS sgls to the port.
13948 * @phba: pointer to lpfc hba data structure.
13949 * @post_sgl_list: pointer to els sgl entry list.
13950 * @count: number of els sgl entries on the list.
13952 * This routine is invoked to post a block of driver's sgl pages to the
13953 * HBA using non-embedded mailbox command. No Lock is held. This routine
13954 * is only called when the driver is loading and after all IO has been
13958 lpfc_sli4_post_els_sgl_list(struct lpfc_hba *phba,
13959 struct list_head *post_sgl_list,
13962 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
13963 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
13964 struct sgl_page_pairs *sgl_pg_pairs;
13966 LPFC_MBOXQ_t *mbox;
13967 uint32_t reqlen, alloclen, pg_pairs;
13969 uint16_t xritag_start = 0;
13971 uint32_t shdr_status, shdr_add_status;
13972 union lpfc_sli4_cfg_shdr *shdr;
13974 reqlen = phba->sli4_hba.els_xri_cnt * sizeof(struct sgl_page_pairs) +
13975 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
13976 if (reqlen > SLI4_PAGE_SIZE) {
13977 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13978 "2559 Block sgl registration required DMA "
13979 "size (%d) great than a page\n", reqlen);
13982 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13986 /* Allocate DMA memory and set up the non-embedded mailbox command */
13987 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13988 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
13989 LPFC_SLI4_MBX_NEMBED);
13991 if (alloclen < reqlen) {
13992 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13993 "0285 Allocated DMA memory size (%d) is "
13994 "less than the requested DMA memory "
13995 "size (%d)\n", alloclen, reqlen);
13996 lpfc_sli4_mbox_cmd_free(phba, mbox);
13999 /* Set up the SGL pages in the non-embedded DMA pages */
14000 viraddr = mbox->sge_array->addr[0];
14001 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
14002 sgl_pg_pairs = &sgl->sgl_pg_pairs;
14005 list_for_each_entry_safe(sglq_entry, sglq_next, post_sgl_list, list) {
14006 /* Set up the sge entry */
14007 sgl_pg_pairs->sgl_pg0_addr_lo =
14008 cpu_to_le32(putPaddrLow(sglq_entry->phys));
14009 sgl_pg_pairs->sgl_pg0_addr_hi =
14010 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
14011 sgl_pg_pairs->sgl_pg1_addr_lo =
14012 cpu_to_le32(putPaddrLow(0));
14013 sgl_pg_pairs->sgl_pg1_addr_hi =
14014 cpu_to_le32(putPaddrHigh(0));
14016 /* Keep the first xritag on the list */
14018 xritag_start = sglq_entry->sli4_xritag;
14023 /* Complete initialization and perform endian conversion. */
14024 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
14025 bf_set(lpfc_post_sgl_pages_xricnt, sgl, phba->sli4_hba.els_xri_cnt);
14026 sgl->word0 = cpu_to_le32(sgl->word0);
14027 if (!phba->sli4_hba.intr_enable)
14028 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14030 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
14031 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
14033 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
14034 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14035 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14036 if (rc != MBX_TIMEOUT)
14037 lpfc_sli4_mbox_cmd_free(phba, mbox);
14038 if (shdr_status || shdr_add_status || rc) {
14039 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14040 "2513 POST_SGL_BLOCK mailbox command failed "
14041 "status x%x add_status x%x mbx status x%x\n",
14042 shdr_status, shdr_add_status, rc);
14049 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
14050 * @phba: pointer to lpfc hba data structure.
14051 * @sblist: pointer to scsi buffer list.
14052 * @count: number of scsi buffers on the list.
14054 * This routine is invoked to post a block of @count scsi sgl pages from a
14055 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
14060 lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba,
14061 struct list_head *sblist,
14064 struct lpfc_scsi_buf *psb;
14065 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
14066 struct sgl_page_pairs *sgl_pg_pairs;
14068 LPFC_MBOXQ_t *mbox;
14069 uint32_t reqlen, alloclen, pg_pairs;
14071 uint16_t xritag_start = 0;
14073 uint32_t shdr_status, shdr_add_status;
14074 dma_addr_t pdma_phys_bpl1;
14075 union lpfc_sli4_cfg_shdr *shdr;
14077 /* Calculate the requested length of the dma memory */
14078 reqlen = count * sizeof(struct sgl_page_pairs) +
14079 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
14080 if (reqlen > SLI4_PAGE_SIZE) {
14081 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
14082 "0217 Block sgl registration required DMA "
14083 "size (%d) great than a page\n", reqlen);
14086 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14088 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14089 "0283 Failed to allocate mbox cmd memory\n");
14093 /* Allocate DMA memory and set up the non-embedded mailbox command */
14094 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14095 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
14096 LPFC_SLI4_MBX_NEMBED);
14098 if (alloclen < reqlen) {
14099 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14100 "2561 Allocated DMA memory size (%d) is "
14101 "less than the requested DMA memory "
14102 "size (%d)\n", alloclen, reqlen);
14103 lpfc_sli4_mbox_cmd_free(phba, mbox);
14107 /* Get the first SGE entry from the non-embedded DMA memory */
14108 viraddr = mbox->sge_array->addr[0];
14110 /* Set up the SGL pages in the non-embedded DMA pages */
14111 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
14112 sgl_pg_pairs = &sgl->sgl_pg_pairs;
14115 list_for_each_entry(psb, sblist, list) {
14116 /* Set up the sge entry */
14117 sgl_pg_pairs->sgl_pg0_addr_lo =
14118 cpu_to_le32(putPaddrLow(psb->dma_phys_bpl));
14119 sgl_pg_pairs->sgl_pg0_addr_hi =
14120 cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl));
14121 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
14122 pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE;
14124 pdma_phys_bpl1 = 0;
14125 sgl_pg_pairs->sgl_pg1_addr_lo =
14126 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
14127 sgl_pg_pairs->sgl_pg1_addr_hi =
14128 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
14129 /* Keep the first xritag on the list */
14131 xritag_start = psb->cur_iocbq.sli4_xritag;
14135 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
14136 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
14137 /* Perform endian conversion if necessary */
14138 sgl->word0 = cpu_to_le32(sgl->word0);
14140 if (!phba->sli4_hba.intr_enable)
14141 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14143 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
14144 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
14146 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
14147 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14148 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14149 if (rc != MBX_TIMEOUT)
14150 lpfc_sli4_mbox_cmd_free(phba, mbox);
14151 if (shdr_status || shdr_add_status || rc) {
14152 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14153 "2564 POST_SGL_BLOCK mailbox command failed "
14154 "status x%x add_status x%x mbx status x%x\n",
14155 shdr_status, shdr_add_status, rc);
14162 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
14163 * @phba: pointer to lpfc_hba struct that the frame was received on
14164 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14166 * This function checks the fields in the @fc_hdr to see if the FC frame is a
14167 * valid type of frame that the LPFC driver will handle. This function will
14168 * return a zero if the frame is a valid frame or a non zero value when the
14169 * frame does not pass the check.
14172 lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
14174 /* make rctl_names static to save stack space */
14175 static char *rctl_names[] = FC_RCTL_NAMES_INIT;
14176 char *type_names[] = FC_TYPE_NAMES_INIT;
14177 struct fc_vft_header *fc_vft_hdr;
14178 uint32_t *header = (uint32_t *) fc_hdr;
14180 switch (fc_hdr->fh_r_ctl) {
14181 case FC_RCTL_DD_UNCAT: /* uncategorized information */
14182 case FC_RCTL_DD_SOL_DATA: /* solicited data */
14183 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
14184 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
14185 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
14186 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
14187 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
14188 case FC_RCTL_DD_CMD_STATUS: /* command status */
14189 case FC_RCTL_ELS_REQ: /* extended link services request */
14190 case FC_RCTL_ELS_REP: /* extended link services reply */
14191 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
14192 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
14193 case FC_RCTL_BA_NOP: /* basic link service NOP */
14194 case FC_RCTL_BA_ABTS: /* basic link service abort */
14195 case FC_RCTL_BA_RMC: /* remove connection */
14196 case FC_RCTL_BA_ACC: /* basic accept */
14197 case FC_RCTL_BA_RJT: /* basic reject */
14198 case FC_RCTL_BA_PRMT:
14199 case FC_RCTL_ACK_1: /* acknowledge_1 */
14200 case FC_RCTL_ACK_0: /* acknowledge_0 */
14201 case FC_RCTL_P_RJT: /* port reject */
14202 case FC_RCTL_F_RJT: /* fabric reject */
14203 case FC_RCTL_P_BSY: /* port busy */
14204 case FC_RCTL_F_BSY: /* fabric busy to data frame */
14205 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
14206 case FC_RCTL_LCR: /* link credit reset */
14207 case FC_RCTL_END: /* end */
14209 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
14210 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
14211 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
14212 return lpfc_fc_frame_check(phba, fc_hdr);
14216 switch (fc_hdr->fh_type) {
14228 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
14229 "2538 Received frame rctl:%s (x%x), type:%s (x%x), "
14230 "frame Data:%08x %08x %08x %08x %08x %08x %08x\n",
14231 rctl_names[fc_hdr->fh_r_ctl], fc_hdr->fh_r_ctl,
14232 type_names[fc_hdr->fh_type], fc_hdr->fh_type,
14233 be32_to_cpu(header[0]), be32_to_cpu(header[1]),
14234 be32_to_cpu(header[2]), be32_to_cpu(header[3]),
14235 be32_to_cpu(header[4]), be32_to_cpu(header[5]),
14236 be32_to_cpu(header[6]));
14239 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
14240 "2539 Dropped frame rctl:%s type:%s\n",
14241 rctl_names[fc_hdr->fh_r_ctl],
14242 type_names[fc_hdr->fh_type]);
14247 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
14248 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14250 * This function processes the FC header to retrieve the VFI from the VF
14251 * header, if one exists. This function will return the VFI if one exists
14252 * or 0 if no VSAN Header exists.
14255 lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
14257 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
14259 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
14261 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
14265 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
14266 * @phba: Pointer to the HBA structure to search for the vport on
14267 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14268 * @fcfi: The FC Fabric ID that the frame came from
14270 * This function searches the @phba for a vport that matches the content of the
14271 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
14272 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
14273 * returns the matching vport pointer or NULL if unable to match frame to a
14276 static struct lpfc_vport *
14277 lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
14280 struct lpfc_vport **vports;
14281 struct lpfc_vport *vport = NULL;
14283 uint32_t did = (fc_hdr->fh_d_id[0] << 16 |
14284 fc_hdr->fh_d_id[1] << 8 |
14285 fc_hdr->fh_d_id[2]);
14287 if (did == Fabric_DID)
14288 return phba->pport;
14289 if ((phba->pport->fc_flag & FC_PT2PT) &&
14290 !(phba->link_state == LPFC_HBA_READY))
14291 return phba->pport;
14293 vports = lpfc_create_vport_work_array(phba);
14294 if (vports != NULL)
14295 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
14296 if (phba->fcf.fcfi == fcfi &&
14297 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
14298 vports[i]->fc_myDID == did) {
14303 lpfc_destroy_vport_work_array(phba, vports);
14308 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
14309 * @vport: The vport to work on.
14311 * This function updates the receive sequence time stamp for this vport. The
14312 * receive sequence time stamp indicates the time that the last frame of the
14313 * the sequence that has been idle for the longest amount of time was received.
14314 * the driver uses this time stamp to indicate if any received sequences have
14318 lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
14320 struct lpfc_dmabuf *h_buf;
14321 struct hbq_dmabuf *dmabuf = NULL;
14323 /* get the oldest sequence on the rcv list */
14324 h_buf = list_get_first(&vport->rcv_buffer_list,
14325 struct lpfc_dmabuf, list);
14328 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14329 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
14333 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
14334 * @vport: The vport that the received sequences were sent to.
14336 * This function cleans up all outstanding received sequences. This is called
14337 * by the driver when a link event or user action invalidates all the received
14341 lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
14343 struct lpfc_dmabuf *h_buf, *hnext;
14344 struct lpfc_dmabuf *d_buf, *dnext;
14345 struct hbq_dmabuf *dmabuf = NULL;
14347 /* start with the oldest sequence on the rcv list */
14348 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
14349 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14350 list_del_init(&dmabuf->hbuf.list);
14351 list_for_each_entry_safe(d_buf, dnext,
14352 &dmabuf->dbuf.list, list) {
14353 list_del_init(&d_buf->list);
14354 lpfc_in_buf_free(vport->phba, d_buf);
14356 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
14361 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
14362 * @vport: The vport that the received sequences were sent to.
14364 * This function determines whether any received sequences have timed out by
14365 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
14366 * indicates that there is at least one timed out sequence this routine will
14367 * go through the received sequences one at a time from most inactive to most
14368 * active to determine which ones need to be cleaned up. Once it has determined
14369 * that a sequence needs to be cleaned up it will simply free up the resources
14370 * without sending an abort.
14373 lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
14375 struct lpfc_dmabuf *h_buf, *hnext;
14376 struct lpfc_dmabuf *d_buf, *dnext;
14377 struct hbq_dmabuf *dmabuf = NULL;
14378 unsigned long timeout;
14379 int abort_count = 0;
14381 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
14382 vport->rcv_buffer_time_stamp);
14383 if (list_empty(&vport->rcv_buffer_list) ||
14384 time_before(jiffies, timeout))
14386 /* start with the oldest sequence on the rcv list */
14387 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
14388 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14389 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
14390 dmabuf->time_stamp);
14391 if (time_before(jiffies, timeout))
14394 list_del_init(&dmabuf->hbuf.list);
14395 list_for_each_entry_safe(d_buf, dnext,
14396 &dmabuf->dbuf.list, list) {
14397 list_del_init(&d_buf->list);
14398 lpfc_in_buf_free(vport->phba, d_buf);
14400 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
14403 lpfc_update_rcv_time_stamp(vport);
14407 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
14408 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
14410 * This function searches through the existing incomplete sequences that have
14411 * been sent to this @vport. If the frame matches one of the incomplete
14412 * sequences then the dbuf in the @dmabuf is added to the list of frames that
14413 * make up that sequence. If no sequence is found that matches this frame then
14414 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
14415 * This function returns a pointer to the first dmabuf in the sequence list that
14416 * the frame was linked to.
14418 static struct hbq_dmabuf *
14419 lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
14421 struct fc_frame_header *new_hdr;
14422 struct fc_frame_header *temp_hdr;
14423 struct lpfc_dmabuf *d_buf;
14424 struct lpfc_dmabuf *h_buf;
14425 struct hbq_dmabuf *seq_dmabuf = NULL;
14426 struct hbq_dmabuf *temp_dmabuf = NULL;
14428 INIT_LIST_HEAD(&dmabuf->dbuf.list);
14429 dmabuf->time_stamp = jiffies;
14430 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14431 /* Use the hdr_buf to find the sequence that this frame belongs to */
14432 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
14433 temp_hdr = (struct fc_frame_header *)h_buf->virt;
14434 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
14435 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
14436 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
14438 /* found a pending sequence that matches this frame */
14439 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14444 * This indicates first frame received for this sequence.
14445 * Queue the buffer on the vport's rcv_buffer_list.
14447 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
14448 lpfc_update_rcv_time_stamp(vport);
14451 temp_hdr = seq_dmabuf->hbuf.virt;
14452 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
14453 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
14454 list_del_init(&seq_dmabuf->hbuf.list);
14455 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
14456 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
14457 lpfc_update_rcv_time_stamp(vport);
14460 /* move this sequence to the tail to indicate a young sequence */
14461 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
14462 seq_dmabuf->time_stamp = jiffies;
14463 lpfc_update_rcv_time_stamp(vport);
14464 if (list_empty(&seq_dmabuf->dbuf.list)) {
14465 temp_hdr = dmabuf->hbuf.virt;
14466 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
14469 /* find the correct place in the sequence to insert this frame */
14470 list_for_each_entry_reverse(d_buf, &seq_dmabuf->dbuf.list, list) {
14471 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14472 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
14474 * If the frame's sequence count is greater than the frame on
14475 * the list then insert the frame right after this frame
14477 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
14478 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
14479 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
14487 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
14488 * @vport: pointer to a vitural port
14489 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14491 * This function tries to abort from the partially assembed sequence, described
14492 * by the information from basic abbort @dmabuf. It checks to see whether such
14493 * partially assembled sequence held by the driver. If so, it shall free up all
14494 * the frames from the partially assembled sequence.
14497 * true -- if there is matching partially assembled sequence present and all
14498 * the frames freed with the sequence;
14499 * false -- if there is no matching partially assembled sequence present so
14500 * nothing got aborted in the lower layer driver
14503 lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
14504 struct hbq_dmabuf *dmabuf)
14506 struct fc_frame_header *new_hdr;
14507 struct fc_frame_header *temp_hdr;
14508 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
14509 struct hbq_dmabuf *seq_dmabuf = NULL;
14511 /* Use the hdr_buf to find the sequence that matches this frame */
14512 INIT_LIST_HEAD(&dmabuf->dbuf.list);
14513 INIT_LIST_HEAD(&dmabuf->hbuf.list);
14514 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14515 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
14516 temp_hdr = (struct fc_frame_header *)h_buf->virt;
14517 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
14518 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
14519 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
14521 /* found a pending sequence that matches this frame */
14522 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14526 /* Free up all the frames from the partially assembled sequence */
14528 list_for_each_entry_safe(d_buf, n_buf,
14529 &seq_dmabuf->dbuf.list, list) {
14530 list_del_init(&d_buf->list);
14531 lpfc_in_buf_free(vport->phba, d_buf);
14539 * lpfc_sli4_abort_ulp_seq - Abort assembled unsol sequence from ulp
14540 * @vport: pointer to a vitural port
14541 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14543 * This function tries to abort from the assembed sequence from upper level
14544 * protocol, described by the information from basic abbort @dmabuf. It
14545 * checks to see whether such pending context exists at upper level protocol.
14546 * If so, it shall clean up the pending context.
14549 * true -- if there is matching pending context of the sequence cleaned
14551 * false -- if there is no matching pending context of the sequence present
14555 lpfc_sli4_abort_ulp_seq(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
14557 struct lpfc_hba *phba = vport->phba;
14560 /* Accepting abort at ulp with SLI4 only */
14561 if (phba->sli_rev < LPFC_SLI_REV4)
14564 /* Register all caring upper level protocols to attend abort */
14565 handled = lpfc_ct_handle_unsol_abort(phba, dmabuf);
14573 * lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler
14574 * @phba: Pointer to HBA context object.
14575 * @cmd_iocbq: pointer to the command iocbq structure.
14576 * @rsp_iocbq: pointer to the response iocbq structure.
14578 * This function handles the sequence abort response iocb command complete
14579 * event. It properly releases the memory allocated to the sequence abort
14583 lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba *phba,
14584 struct lpfc_iocbq *cmd_iocbq,
14585 struct lpfc_iocbq *rsp_iocbq)
14587 struct lpfc_nodelist *ndlp;
14590 ndlp = (struct lpfc_nodelist *)cmd_iocbq->context1;
14591 lpfc_nlp_put(ndlp);
14592 lpfc_nlp_not_used(ndlp);
14593 lpfc_sli_release_iocbq(phba, cmd_iocbq);
14596 /* Failure means BLS ABORT RSP did not get delivered to remote node*/
14597 if (rsp_iocbq && rsp_iocbq->iocb.ulpStatus)
14598 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14599 "3154 BLS ABORT RSP failed, data: x%x/x%x\n",
14600 rsp_iocbq->iocb.ulpStatus,
14601 rsp_iocbq->iocb.un.ulpWord[4]);
14605 * lpfc_sli4_xri_inrange - check xri is in range of xris owned by driver.
14606 * @phba: Pointer to HBA context object.
14607 * @xri: xri id in transaction.
14609 * This function validates the xri maps to the known range of XRIs allocated an
14610 * used by the driver.
14613 lpfc_sli4_xri_inrange(struct lpfc_hba *phba,
14618 for (i = 0; i < phba->sli4_hba.max_cfg_param.max_xri; i++) {
14619 if (xri == phba->sli4_hba.xri_ids[i])
14626 * lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort
14627 * @phba: Pointer to HBA context object.
14628 * @fc_hdr: pointer to a FC frame header.
14630 * This function sends a basic response to a previous unsol sequence abort
14631 * event after aborting the sequence handling.
14634 lpfc_sli4_seq_abort_rsp(struct lpfc_vport *vport,
14635 struct fc_frame_header *fc_hdr, bool aborted)
14637 struct lpfc_hba *phba = vport->phba;
14638 struct lpfc_iocbq *ctiocb = NULL;
14639 struct lpfc_nodelist *ndlp;
14640 uint16_t oxid, rxid, xri, lxri;
14641 uint32_t sid, fctl;
14645 if (!lpfc_is_link_up(phba))
14648 sid = sli4_sid_from_fc_hdr(fc_hdr);
14649 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
14650 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
14652 ndlp = lpfc_findnode_did(vport, sid);
14654 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
14656 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
14657 "1268 Failed to allocate ndlp for "
14658 "oxid:x%x SID:x%x\n", oxid, sid);
14661 lpfc_nlp_init(vport, ndlp, sid);
14662 /* Put ndlp onto pport node list */
14663 lpfc_enqueue_node(vport, ndlp);
14664 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
14665 /* re-setup ndlp without removing from node list */
14666 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
14668 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
14669 "3275 Failed to active ndlp found "
14670 "for oxid:x%x SID:x%x\n", oxid, sid);
14675 /* Allocate buffer for rsp iocb */
14676 ctiocb = lpfc_sli_get_iocbq(phba);
14680 /* Extract the F_CTL field from FC_HDR */
14681 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
14683 icmd = &ctiocb->iocb;
14684 icmd->un.xseq64.bdl.bdeSize = 0;
14685 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
14686 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
14687 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
14688 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
14690 /* Fill in the rest of iocb fields */
14691 icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
14692 icmd->ulpBdeCount = 0;
14694 icmd->ulpClass = CLASS3;
14695 icmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
14696 ctiocb->context1 = lpfc_nlp_get(ndlp);
14698 ctiocb->iocb_cmpl = NULL;
14699 ctiocb->vport = phba->pport;
14700 ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_rsp_cmpl;
14701 ctiocb->sli4_lxritag = NO_XRI;
14702 ctiocb->sli4_xritag = NO_XRI;
14704 if (fctl & FC_FC_EX_CTX)
14705 /* Exchange responder sent the abort so we
14711 lxri = lpfc_sli4_xri_inrange(phba, xri);
14712 if (lxri != NO_XRI)
14713 lpfc_set_rrq_active(phba, ndlp, lxri,
14714 (xri == oxid) ? rxid : oxid, 0);
14715 /* For BA_ABTS from exchange responder, if the logical xri with
14716 * the oxid maps to the FCP XRI range, the port no longer has
14717 * that exchange context, send a BLS_RJT. Override the IOCB for
14720 if ((fctl & FC_FC_EX_CTX) &&
14721 (lxri > lpfc_sli4_get_els_iocb_cnt(phba))) {
14722 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
14723 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
14724 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
14725 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
14728 /* If BA_ABTS failed to abort a partially assembled receive sequence,
14729 * the driver no longer has that exchange, send a BLS_RJT. Override
14730 * the IOCB for a BA_RJT.
14732 if (aborted == false) {
14733 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
14734 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
14735 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
14736 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
14739 if (fctl & FC_FC_EX_CTX) {
14740 /* ABTS sent by responder to CT exchange, construction
14741 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
14742 * field and RX_ID from ABTS for RX_ID field.
14744 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_RSP);
14746 /* ABTS sent by initiator to CT exchange, construction
14747 * of BA_ACC will need to allocate a new XRI as for the
14750 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_INT);
14752 bf_set(lpfc_abts_rxid, &icmd->un.bls_rsp, rxid);
14753 bf_set(lpfc_abts_oxid, &icmd->un.bls_rsp, oxid);
14755 /* Xmit CT abts response on exchange <xid> */
14756 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
14757 "1200 Send BLS cmd x%x on oxid x%x Data: x%x\n",
14758 icmd->un.xseq64.w5.hcsw.Rctl, oxid, phba->link_state);
14760 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
14761 if (rc == IOCB_ERROR) {
14762 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
14763 "2925 Failed to issue CT ABTS RSP x%x on "
14764 "xri x%x, Data x%x\n",
14765 icmd->un.xseq64.w5.hcsw.Rctl, oxid,
14767 lpfc_nlp_put(ndlp);
14768 ctiocb->context1 = NULL;
14769 lpfc_sli_release_iocbq(phba, ctiocb);
14774 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
14775 * @vport: Pointer to the vport on which this sequence was received
14776 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14778 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
14779 * receive sequence is only partially assembed by the driver, it shall abort
14780 * the partially assembled frames for the sequence. Otherwise, if the
14781 * unsolicited receive sequence has been completely assembled and passed to
14782 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
14783 * unsolicited sequence has been aborted. After that, it will issue a basic
14784 * accept to accept the abort.
14787 lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
14788 struct hbq_dmabuf *dmabuf)
14790 struct lpfc_hba *phba = vport->phba;
14791 struct fc_frame_header fc_hdr;
14795 /* Make a copy of fc_hdr before the dmabuf being released */
14796 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
14797 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
14799 if (fctl & FC_FC_EX_CTX) {
14800 /* ABTS by responder to exchange, no cleanup needed */
14803 /* ABTS by initiator to exchange, need to do cleanup */
14804 aborted = lpfc_sli4_abort_partial_seq(vport, dmabuf);
14805 if (aborted == false)
14806 aborted = lpfc_sli4_abort_ulp_seq(vport, dmabuf);
14808 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14810 /* Respond with BA_ACC or BA_RJT accordingly */
14811 lpfc_sli4_seq_abort_rsp(vport, &fc_hdr, aborted);
14815 * lpfc_seq_complete - Indicates if a sequence is complete
14816 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14818 * This function checks the sequence, starting with the frame described by
14819 * @dmabuf, to see if all the frames associated with this sequence are present.
14820 * the frames associated with this sequence are linked to the @dmabuf using the
14821 * dbuf list. This function looks for two major things. 1) That the first frame
14822 * has a sequence count of zero. 2) There is a frame with last frame of sequence
14823 * set. 3) That there are no holes in the sequence count. The function will
14824 * return 1 when the sequence is complete, otherwise it will return 0.
14827 lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
14829 struct fc_frame_header *hdr;
14830 struct lpfc_dmabuf *d_buf;
14831 struct hbq_dmabuf *seq_dmabuf;
14835 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14836 /* make sure first fame of sequence has a sequence count of zero */
14837 if (hdr->fh_seq_cnt != seq_count)
14839 fctl = (hdr->fh_f_ctl[0] << 16 |
14840 hdr->fh_f_ctl[1] << 8 |
14842 /* If last frame of sequence we can return success. */
14843 if (fctl & FC_FC_END_SEQ)
14845 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
14846 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14847 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
14848 /* If there is a hole in the sequence count then fail. */
14849 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
14851 fctl = (hdr->fh_f_ctl[0] << 16 |
14852 hdr->fh_f_ctl[1] << 8 |
14854 /* If last frame of sequence we can return success. */
14855 if (fctl & FC_FC_END_SEQ)
14862 * lpfc_prep_seq - Prep sequence for ULP processing
14863 * @vport: Pointer to the vport on which this sequence was received
14864 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14866 * This function takes a sequence, described by a list of frames, and creates
14867 * a list of iocbq structures to describe the sequence. This iocbq list will be
14868 * used to issue to the generic unsolicited sequence handler. This routine
14869 * returns a pointer to the first iocbq in the list. If the function is unable
14870 * to allocate an iocbq then it throw out the received frames that were not
14871 * able to be described and return a pointer to the first iocbq. If unable to
14872 * allocate any iocbqs (including the first) this function will return NULL.
14874 static struct lpfc_iocbq *
14875 lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
14877 struct hbq_dmabuf *hbq_buf;
14878 struct lpfc_dmabuf *d_buf, *n_buf;
14879 struct lpfc_iocbq *first_iocbq, *iocbq;
14880 struct fc_frame_header *fc_hdr;
14882 uint32_t len, tot_len;
14883 struct ulp_bde64 *pbde;
14885 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
14886 /* remove from receive buffer list */
14887 list_del_init(&seq_dmabuf->hbuf.list);
14888 lpfc_update_rcv_time_stamp(vport);
14889 /* get the Remote Port's SID */
14890 sid = sli4_sid_from_fc_hdr(fc_hdr);
14892 /* Get an iocbq struct to fill in. */
14893 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
14895 /* Initialize the first IOCB. */
14896 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
14897 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
14899 /* Check FC Header to see what TYPE of frame we are rcv'ing */
14900 if (sli4_type_from_fc_hdr(fc_hdr) == FC_TYPE_ELS) {
14901 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_ELS64_CX;
14902 first_iocbq->iocb.un.rcvels.parmRo =
14903 sli4_did_from_fc_hdr(fc_hdr);
14904 first_iocbq->iocb.ulpPU = PARM_NPIV_DID;
14906 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
14907 first_iocbq->iocb.ulpContext = NO_XRI;
14908 first_iocbq->iocb.unsli3.rcvsli3.ox_id =
14909 be16_to_cpu(fc_hdr->fh_ox_id);
14910 /* iocbq is prepped for internal consumption. Physical vpi. */
14911 first_iocbq->iocb.unsli3.rcvsli3.vpi =
14912 vport->phba->vpi_ids[vport->vpi];
14913 /* put the first buffer into the first IOCBq */
14914 tot_len = bf_get(lpfc_rcqe_length,
14915 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
14917 first_iocbq->context2 = &seq_dmabuf->dbuf;
14918 first_iocbq->context3 = NULL;
14919 first_iocbq->iocb.ulpBdeCount = 1;
14920 if (tot_len > LPFC_DATA_BUF_SIZE)
14921 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
14922 LPFC_DATA_BUF_SIZE;
14924 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize = tot_len;
14926 first_iocbq->iocb.un.rcvels.remoteID = sid;
14928 first_iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
14930 iocbq = first_iocbq;
14932 * Each IOCBq can have two Buffers assigned, so go through the list
14933 * of buffers for this sequence and save two buffers in each IOCBq
14935 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
14937 lpfc_in_buf_free(vport->phba, d_buf);
14940 if (!iocbq->context3) {
14941 iocbq->context3 = d_buf;
14942 iocbq->iocb.ulpBdeCount++;
14943 /* We need to get the size out of the right CQE */
14944 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14945 len = bf_get(lpfc_rcqe_length,
14946 &hbq_buf->cq_event.cqe.rcqe_cmpl);
14947 pbde = (struct ulp_bde64 *)
14948 &iocbq->iocb.unsli3.sli3Words[4];
14949 if (len > LPFC_DATA_BUF_SIZE)
14950 pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
14952 pbde->tus.f.bdeSize = len;
14954 iocbq->iocb.unsli3.rcvsli3.acc_len += len;
14957 iocbq = lpfc_sli_get_iocbq(vport->phba);
14960 first_iocbq->iocb.ulpStatus =
14961 IOSTAT_FCP_RSP_ERROR;
14962 first_iocbq->iocb.un.ulpWord[4] =
14963 IOERR_NO_RESOURCES;
14965 lpfc_in_buf_free(vport->phba, d_buf);
14968 /* We need to get the size out of the right CQE */
14969 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14970 len = bf_get(lpfc_rcqe_length,
14971 &hbq_buf->cq_event.cqe.rcqe_cmpl);
14972 iocbq->context2 = d_buf;
14973 iocbq->context3 = NULL;
14974 iocbq->iocb.ulpBdeCount = 1;
14975 if (len > LPFC_DATA_BUF_SIZE)
14976 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
14977 LPFC_DATA_BUF_SIZE;
14979 iocbq->iocb.un.cont64[0].tus.f.bdeSize = len;
14982 iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
14984 iocbq->iocb.un.rcvels.remoteID = sid;
14985 list_add_tail(&iocbq->list, &first_iocbq->list);
14988 return first_iocbq;
14992 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
14993 struct hbq_dmabuf *seq_dmabuf)
14995 struct fc_frame_header *fc_hdr;
14996 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
14997 struct lpfc_hba *phba = vport->phba;
14999 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
15000 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
15002 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15003 "2707 Ring %d handler: Failed to allocate "
15004 "iocb Rctl x%x Type x%x received\n",
15006 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
15009 if (!lpfc_complete_unsol_iocb(phba,
15010 &phba->sli.ring[LPFC_ELS_RING],
15011 iocbq, fc_hdr->fh_r_ctl,
15013 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15014 "2540 Ring %d handler: unexpected Rctl "
15015 "x%x Type x%x received\n",
15017 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
15019 /* Free iocb created in lpfc_prep_seq */
15020 list_for_each_entry_safe(curr_iocb, next_iocb,
15021 &iocbq->list, list) {
15022 list_del_init(&curr_iocb->list);
15023 lpfc_sli_release_iocbq(phba, curr_iocb);
15025 lpfc_sli_release_iocbq(phba, iocbq);
15029 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
15030 * @phba: Pointer to HBA context object.
15032 * This function is called with no lock held. This function processes all
15033 * the received buffers and gives it to upper layers when a received buffer
15034 * indicates that it is the final frame in the sequence. The interrupt
15035 * service routine processes received buffers at interrupt contexts and adds
15036 * received dma buffers to the rb_pend_list queue and signals the worker thread.
15037 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
15038 * appropriate receive function when the final frame in a sequence is received.
15041 lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
15042 struct hbq_dmabuf *dmabuf)
15044 struct hbq_dmabuf *seq_dmabuf;
15045 struct fc_frame_header *fc_hdr;
15046 struct lpfc_vport *vport;
15050 /* Process each received buffer */
15051 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
15052 /* check to see if this a valid type of frame */
15053 if (lpfc_fc_frame_check(phba, fc_hdr)) {
15054 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15057 if ((bf_get(lpfc_cqe_code,
15058 &dmabuf->cq_event.cqe.rcqe_cmpl) == CQE_CODE_RECEIVE_V1))
15059 fcfi = bf_get(lpfc_rcqe_fcf_id_v1,
15060 &dmabuf->cq_event.cqe.rcqe_cmpl);
15062 fcfi = bf_get(lpfc_rcqe_fcf_id,
15063 &dmabuf->cq_event.cqe.rcqe_cmpl);
15065 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi);
15067 /* throw out the frame */
15068 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15072 /* d_id this frame is directed to */
15073 did = sli4_did_from_fc_hdr(fc_hdr);
15075 /* vport is registered unless we rcv a FLOGI directed to Fabric_DID */
15076 if (!(vport->vpi_state & LPFC_VPI_REGISTERED) &&
15077 (did != Fabric_DID)) {
15079 * Throw out the frame if we are not pt2pt.
15080 * The pt2pt protocol allows for discovery frames
15081 * to be received without a registered VPI.
15083 if (!(vport->fc_flag & FC_PT2PT) ||
15084 (phba->link_state == LPFC_HBA_READY)) {
15085 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15090 /* Handle the basic abort sequence (BA_ABTS) event */
15091 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
15092 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
15096 /* Link this frame */
15097 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
15099 /* unable to add frame to vport - throw it out */
15100 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15103 /* If not last frame in sequence continue processing frames. */
15104 if (!lpfc_seq_complete(seq_dmabuf))
15107 /* Send the complete sequence to the upper layer protocol */
15108 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
15112 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
15113 * @phba: pointer to lpfc hba data structure.
15115 * This routine is invoked to post rpi header templates to the
15116 * HBA consistent with the SLI-4 interface spec. This routine
15117 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
15118 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
15120 * This routine does not require any locks. It's usage is expected
15121 * to be driver load or reset recovery when the driver is
15126 * -EIO - The mailbox failed to complete successfully.
15127 * When this error occurs, the driver is not guaranteed
15128 * to have any rpi regions posted to the device and
15129 * must either attempt to repost the regions or take a
15133 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
15135 struct lpfc_rpi_hdr *rpi_page;
15139 /* SLI4 ports that support extents do not require RPI headers. */
15140 if (!phba->sli4_hba.rpi_hdrs_in_use)
15142 if (phba->sli4_hba.extents_in_use)
15145 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
15147 * Assign the rpi headers a physical rpi only if the driver
15148 * has not initialized those resources. A port reset only
15149 * needs the headers posted.
15151 if (bf_get(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags) !=
15153 rpi_page->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
15155 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
15156 if (rc != MBX_SUCCESS) {
15157 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15158 "2008 Error %d posting all rpi "
15166 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags,
15167 LPFC_RPI_RSRC_RDY);
15172 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
15173 * @phba: pointer to lpfc hba data structure.
15174 * @rpi_page: pointer to the rpi memory region.
15176 * This routine is invoked to post a single rpi header to the
15177 * HBA consistent with the SLI-4 interface spec. This memory region
15178 * maps up to 64 rpi context regions.
15182 * -ENOMEM - No available memory
15183 * -EIO - The mailbox failed to complete successfully.
15186 lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
15188 LPFC_MBOXQ_t *mboxq;
15189 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
15191 uint32_t shdr_status, shdr_add_status;
15192 union lpfc_sli4_cfg_shdr *shdr;
15194 /* SLI4 ports that support extents do not require RPI headers. */
15195 if (!phba->sli4_hba.rpi_hdrs_in_use)
15197 if (phba->sli4_hba.extents_in_use)
15200 /* The port is notified of the header region via a mailbox command. */
15201 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15203 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15204 "2001 Unable to allocate memory for issuing "
15205 "SLI_CONFIG_SPECIAL mailbox command\n");
15209 /* Post all rpi memory regions to the port. */
15210 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
15211 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
15212 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
15213 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
15214 sizeof(struct lpfc_sli4_cfg_mhdr),
15215 LPFC_SLI4_MBX_EMBED);
15218 /* Post the physical rpi to the port for this rpi header. */
15219 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
15220 rpi_page->start_rpi);
15221 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
15222 hdr_tmpl, rpi_page->page_count);
15224 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
15225 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
15226 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
15227 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
15228 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15229 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15230 if (rc != MBX_TIMEOUT)
15231 mempool_free(mboxq, phba->mbox_mem_pool);
15232 if (shdr_status || shdr_add_status || rc) {
15233 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15234 "2514 POST_RPI_HDR mailbox failed with "
15235 "status x%x add_status x%x, mbx status x%x\n",
15236 shdr_status, shdr_add_status, rc);
15243 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
15244 * @phba: pointer to lpfc hba data structure.
15246 * This routine is invoked to post rpi header templates to the
15247 * HBA consistent with the SLI-4 interface spec. This routine
15248 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
15249 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
15252 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
15253 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
15256 lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
15259 uint16_t max_rpi, rpi_limit;
15260 uint16_t rpi_remaining, lrpi = 0;
15261 struct lpfc_rpi_hdr *rpi_hdr;
15262 unsigned long iflag;
15264 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
15265 rpi_limit = phba->sli4_hba.next_rpi;
15268 * Fetch the next logical rpi. Because this index is logical,
15269 * the driver starts at 0 each time.
15271 spin_lock_irqsave(&phba->hbalock, iflag);
15272 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, 0);
15273 if (rpi >= rpi_limit)
15274 rpi = LPFC_RPI_ALLOC_ERROR;
15276 set_bit(rpi, phba->sli4_hba.rpi_bmask);
15277 phba->sli4_hba.max_cfg_param.rpi_used++;
15278 phba->sli4_hba.rpi_count++;
15282 * Don't try to allocate more rpi header regions if the device limit
15283 * has been exhausted.
15285 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
15286 (phba->sli4_hba.rpi_count >= max_rpi)) {
15287 spin_unlock_irqrestore(&phba->hbalock, iflag);
15292 * RPI header postings are not required for SLI4 ports capable of
15295 if (!phba->sli4_hba.rpi_hdrs_in_use) {
15296 spin_unlock_irqrestore(&phba->hbalock, iflag);
15301 * If the driver is running low on rpi resources, allocate another
15302 * page now. Note that the next_rpi value is used because
15303 * it represents how many are actually in use whereas max_rpi notes
15304 * how many are supported max by the device.
15306 rpi_remaining = phba->sli4_hba.next_rpi - phba->sli4_hba.rpi_count;
15307 spin_unlock_irqrestore(&phba->hbalock, iflag);
15308 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
15309 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
15311 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15312 "2002 Error Could not grow rpi "
15315 lrpi = rpi_hdr->start_rpi;
15316 rpi_hdr->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
15317 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
15325 * lpfc_sli4_free_rpi - Release an rpi for reuse.
15326 * @phba: pointer to lpfc hba data structure.
15328 * This routine is invoked to release an rpi to the pool of
15329 * available rpis maintained by the driver.
15332 __lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
15334 if (test_and_clear_bit(rpi, phba->sli4_hba.rpi_bmask)) {
15335 phba->sli4_hba.rpi_count--;
15336 phba->sli4_hba.max_cfg_param.rpi_used--;
15341 * lpfc_sli4_free_rpi - Release an rpi for reuse.
15342 * @phba: pointer to lpfc hba data structure.
15344 * This routine is invoked to release an rpi to the pool of
15345 * available rpis maintained by the driver.
15348 lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
15350 spin_lock_irq(&phba->hbalock);
15351 __lpfc_sli4_free_rpi(phba, rpi);
15352 spin_unlock_irq(&phba->hbalock);
15356 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
15357 * @phba: pointer to lpfc hba data structure.
15359 * This routine is invoked to remove the memory region that
15360 * provided rpi via a bitmask.
15363 lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
15365 kfree(phba->sli4_hba.rpi_bmask);
15366 kfree(phba->sli4_hba.rpi_ids);
15367 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
15371 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
15372 * @phba: pointer to lpfc hba data structure.
15374 * This routine is invoked to remove the memory region that
15375 * provided rpi via a bitmask.
15378 lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp,
15379 void (*cmpl)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *arg)
15381 LPFC_MBOXQ_t *mboxq;
15382 struct lpfc_hba *phba = ndlp->phba;
15385 /* The port is notified of the header region via a mailbox command. */
15386 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15390 /* Post all rpi memory regions to the port. */
15391 lpfc_resume_rpi(mboxq, ndlp);
15393 mboxq->mbox_cmpl = cmpl;
15394 mboxq->context1 = arg;
15395 mboxq->context2 = ndlp;
15397 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15398 mboxq->vport = ndlp->vport;
15399 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15400 if (rc == MBX_NOT_FINISHED) {
15401 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15402 "2010 Resume RPI Mailbox failed "
15403 "status %d, mbxStatus x%x\n", rc,
15404 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
15405 mempool_free(mboxq, phba->mbox_mem_pool);
15412 * lpfc_sli4_init_vpi - Initialize a vpi with the port
15413 * @vport: Pointer to the vport for which the vpi is being initialized
15415 * This routine is invoked to activate a vpi with the port.
15419 * -Evalue otherwise
15422 lpfc_sli4_init_vpi(struct lpfc_vport *vport)
15424 LPFC_MBOXQ_t *mboxq;
15426 int retval = MBX_SUCCESS;
15428 struct lpfc_hba *phba = vport->phba;
15429 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15432 lpfc_init_vpi(phba, mboxq, vport->vpi);
15433 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
15434 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
15435 if (rc != MBX_SUCCESS) {
15436 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
15437 "2022 INIT VPI Mailbox failed "
15438 "status %d, mbxStatus x%x\n", rc,
15439 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
15442 if (rc != MBX_TIMEOUT)
15443 mempool_free(mboxq, vport->phba->mbox_mem_pool);
15449 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
15450 * @phba: pointer to lpfc hba data structure.
15451 * @mboxq: Pointer to mailbox object.
15453 * This routine is invoked to manually add a single FCF record. The caller
15454 * must pass a completely initialized FCF_Record. This routine takes
15455 * care of the nonembedded mailbox operations.
15458 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
15461 union lpfc_sli4_cfg_shdr *shdr;
15462 uint32_t shdr_status, shdr_add_status;
15464 virt_addr = mboxq->sge_array->addr[0];
15465 /* The IOCTL status is embedded in the mailbox subheader. */
15466 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
15467 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15468 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15470 if ((shdr_status || shdr_add_status) &&
15471 (shdr_status != STATUS_FCF_IN_USE))
15472 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15473 "2558 ADD_FCF_RECORD mailbox failed with "
15474 "status x%x add_status x%x\n",
15475 shdr_status, shdr_add_status);
15477 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15481 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
15482 * @phba: pointer to lpfc hba data structure.
15483 * @fcf_record: pointer to the initialized fcf record to add.
15485 * This routine is invoked to manually add a single FCF record. The caller
15486 * must pass a completely initialized FCF_Record. This routine takes
15487 * care of the nonembedded mailbox operations.
15490 lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
15493 LPFC_MBOXQ_t *mboxq;
15496 dma_addr_t phys_addr;
15497 struct lpfc_mbx_sge sge;
15498 uint32_t alloc_len, req_len;
15501 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15503 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15504 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
15508 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
15511 /* Allocate DMA memory and set up the non-embedded mailbox command */
15512 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
15513 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
15514 req_len, LPFC_SLI4_MBX_NEMBED);
15515 if (alloc_len < req_len) {
15516 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15517 "2523 Allocated DMA memory size (x%x) is "
15518 "less than the requested DMA memory "
15519 "size (x%x)\n", alloc_len, req_len);
15520 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15525 * Get the first SGE entry from the non-embedded DMA memory. This
15526 * routine only uses a single SGE.
15528 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
15529 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
15530 virt_addr = mboxq->sge_array->addr[0];
15532 * Configure the FCF record for FCFI 0. This is the driver's
15533 * hardcoded default and gets used in nonFIP mode.
15535 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
15536 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
15537 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
15540 * Copy the fcf_index and the FCF Record Data. The data starts after
15541 * the FCoE header plus word10. The data copy needs to be endian
15544 bytep += sizeof(uint32_t);
15545 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
15546 mboxq->vport = phba->pport;
15547 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
15548 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15549 if (rc == MBX_NOT_FINISHED) {
15550 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15551 "2515 ADD_FCF_RECORD mailbox failed with "
15552 "status 0x%x\n", rc);
15553 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15562 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
15563 * @phba: pointer to lpfc hba data structure.
15564 * @fcf_record: pointer to the fcf record to write the default data.
15565 * @fcf_index: FCF table entry index.
15567 * This routine is invoked to build the driver's default FCF record. The
15568 * values used are hardcoded. This routine handles memory initialization.
15572 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
15573 struct fcf_record *fcf_record,
15574 uint16_t fcf_index)
15576 memset(fcf_record, 0, sizeof(struct fcf_record));
15577 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
15578 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
15579 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
15580 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
15581 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
15582 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
15583 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
15584 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
15585 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
15586 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
15587 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
15588 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
15589 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
15590 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
15591 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
15592 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
15593 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
15594 /* Set the VLAN bit map */
15595 if (phba->valid_vlan) {
15596 fcf_record->vlan_bitmap[phba->vlan_id / 8]
15597 = 1 << (phba->vlan_id % 8);
15602 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
15603 * @phba: pointer to lpfc hba data structure.
15604 * @fcf_index: FCF table entry offset.
15606 * This routine is invoked to scan the entire FCF table by reading FCF
15607 * record and processing it one at a time starting from the @fcf_index
15608 * for initial FCF discovery or fast FCF failover rediscovery.
15610 * Return 0 if the mailbox command is submitted successfully, none 0
15614 lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
15617 LPFC_MBOXQ_t *mboxq;
15619 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
15620 phba->fcoe_cvl_eventtag_attn = phba->fcoe_cvl_eventtag;
15621 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15623 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15624 "2000 Failed to allocate mbox for "
15627 goto fail_fcf_scan;
15629 /* Construct the read FCF record mailbox command */
15630 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
15633 goto fail_fcf_scan;
15635 /* Issue the mailbox command asynchronously */
15636 mboxq->vport = phba->pport;
15637 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
15639 spin_lock_irq(&phba->hbalock);
15640 phba->hba_flag |= FCF_TS_INPROG;
15641 spin_unlock_irq(&phba->hbalock);
15643 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15644 if (rc == MBX_NOT_FINISHED)
15647 /* Reset eligible FCF count for new scan */
15648 if (fcf_index == LPFC_FCOE_FCF_GET_FIRST)
15649 phba->fcf.eligible_fcf_cnt = 0;
15655 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15656 /* FCF scan failed, clear FCF_TS_INPROG flag */
15657 spin_lock_irq(&phba->hbalock);
15658 phba->hba_flag &= ~FCF_TS_INPROG;
15659 spin_unlock_irq(&phba->hbalock);
15665 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
15666 * @phba: pointer to lpfc hba data structure.
15667 * @fcf_index: FCF table entry offset.
15669 * This routine is invoked to read an FCF record indicated by @fcf_index
15670 * and to use it for FLOGI roundrobin FCF failover.
15672 * Return 0 if the mailbox command is submitted successfully, none 0
15676 lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
15679 LPFC_MBOXQ_t *mboxq;
15681 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15683 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
15684 "2763 Failed to allocate mbox for "
15687 goto fail_fcf_read;
15689 /* Construct the read FCF record mailbox command */
15690 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
15693 goto fail_fcf_read;
15695 /* Issue the mailbox command asynchronously */
15696 mboxq->vport = phba->pport;
15697 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
15698 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15699 if (rc == MBX_NOT_FINISHED)
15705 if (error && mboxq)
15706 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15711 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
15712 * @phba: pointer to lpfc hba data structure.
15713 * @fcf_index: FCF table entry offset.
15715 * This routine is invoked to read an FCF record indicated by @fcf_index to
15716 * determine whether it's eligible for FLOGI roundrobin failover list.
15718 * Return 0 if the mailbox command is submitted successfully, none 0
15722 lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
15725 LPFC_MBOXQ_t *mboxq;
15727 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15729 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
15730 "2758 Failed to allocate mbox for "
15733 goto fail_fcf_read;
15735 /* Construct the read FCF record mailbox command */
15736 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
15739 goto fail_fcf_read;
15741 /* Issue the mailbox command asynchronously */
15742 mboxq->vport = phba->pport;
15743 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
15744 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15745 if (rc == MBX_NOT_FINISHED)
15751 if (error && mboxq)
15752 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15757 * lpfc_check_next_fcf_pri
15758 * phba pointer to the lpfc_hba struct for this port.
15759 * This routine is called from the lpfc_sli4_fcf_rr_next_index_get
15760 * routine when the rr_bmask is empty. The FCF indecies are put into the
15761 * rr_bmask based on their priority level. Starting from the highest priority
15762 * to the lowest. The most likely FCF candidate will be in the highest
15763 * priority group. When this routine is called it searches the fcf_pri list for
15764 * next lowest priority group and repopulates the rr_bmask with only those
15767 * 1=success 0=failure
15770 lpfc_check_next_fcf_pri_level(struct lpfc_hba *phba)
15772 uint16_t next_fcf_pri;
15773 uint16_t last_index;
15774 struct lpfc_fcf_pri *fcf_pri;
15778 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
15779 LPFC_SLI4_FCF_TBL_INDX_MAX);
15780 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15781 "3060 Last IDX %d\n", last_index);
15783 /* Verify the priority list has 2 or more entries */
15784 spin_lock_irq(&phba->hbalock);
15785 if (list_empty(&phba->fcf.fcf_pri_list) ||
15786 list_is_singular(&phba->fcf.fcf_pri_list)) {
15787 spin_unlock_irq(&phba->hbalock);
15788 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
15789 "3061 Last IDX %d\n", last_index);
15790 return 0; /* Empty rr list */
15792 spin_unlock_irq(&phba->hbalock);
15796 * Clear the rr_bmask and set all of the bits that are at this
15799 memset(phba->fcf.fcf_rr_bmask, 0,
15800 sizeof(*phba->fcf.fcf_rr_bmask));
15801 spin_lock_irq(&phba->hbalock);
15802 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
15803 if (fcf_pri->fcf_rec.flag & LPFC_FCF_FLOGI_FAILED)
15806 * the 1st priority that has not FLOGI failed
15807 * will be the highest.
15810 next_fcf_pri = fcf_pri->fcf_rec.priority;
15811 spin_unlock_irq(&phba->hbalock);
15812 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
15813 rc = lpfc_sli4_fcf_rr_index_set(phba,
15814 fcf_pri->fcf_rec.fcf_index);
15818 spin_lock_irq(&phba->hbalock);
15821 * if next_fcf_pri was not set above and the list is not empty then
15822 * we have failed flogis on all of them. So reset flogi failed
15823 * and start at the beginning.
15825 if (!next_fcf_pri && !list_empty(&phba->fcf.fcf_pri_list)) {
15826 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
15827 fcf_pri->fcf_rec.flag &= ~LPFC_FCF_FLOGI_FAILED;
15829 * the 1st priority that has not FLOGI failed
15830 * will be the highest.
15833 next_fcf_pri = fcf_pri->fcf_rec.priority;
15834 spin_unlock_irq(&phba->hbalock);
15835 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
15836 rc = lpfc_sli4_fcf_rr_index_set(phba,
15837 fcf_pri->fcf_rec.fcf_index);
15841 spin_lock_irq(&phba->hbalock);
15845 spin_unlock_irq(&phba->hbalock);
15850 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
15851 * @phba: pointer to lpfc hba data structure.
15853 * This routine is to get the next eligible FCF record index in a round
15854 * robin fashion. If the next eligible FCF record index equals to the
15855 * initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
15856 * shall be returned, otherwise, the next eligible FCF record's index
15857 * shall be returned.
15860 lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
15862 uint16_t next_fcf_index;
15865 /* Search start from next bit of currently registered FCF index */
15866 next_fcf_index = phba->fcf.current_rec.fcf_indx;
15869 /* Determine the next fcf index to check */
15870 next_fcf_index = (next_fcf_index + 1) % LPFC_SLI4_FCF_TBL_INDX_MAX;
15871 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
15872 LPFC_SLI4_FCF_TBL_INDX_MAX,
15875 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
15876 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
15878 * If we have wrapped then we need to clear the bits that
15879 * have been tested so that we can detect when we should
15880 * change the priority level.
15882 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
15883 LPFC_SLI4_FCF_TBL_INDX_MAX, 0);
15887 /* Check roundrobin failover list empty condition */
15888 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX ||
15889 next_fcf_index == phba->fcf.current_rec.fcf_indx) {
15891 * If next fcf index is not found check if there are lower
15892 * Priority level fcf's in the fcf_priority list.
15893 * Set up the rr_bmask with all of the avaiable fcf bits
15894 * at that level and continue the selection process.
15896 if (lpfc_check_next_fcf_pri_level(phba))
15897 goto initial_priority;
15898 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
15899 "2844 No roundrobin failover FCF available\n");
15900 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX)
15901 return LPFC_FCOE_FCF_NEXT_NONE;
15903 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
15904 "3063 Only FCF available idx %d, flag %x\n",
15906 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag);
15907 return next_fcf_index;
15911 if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX &&
15912 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag &
15913 LPFC_FCF_FLOGI_FAILED)
15914 goto next_priority;
15916 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15917 "2845 Get next roundrobin failover FCF (x%x)\n",
15920 return next_fcf_index;
15924 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
15925 * @phba: pointer to lpfc hba data structure.
15927 * This routine sets the FCF record index in to the eligible bmask for
15928 * roundrobin failover search. It checks to make sure that the index
15929 * does not go beyond the range of the driver allocated bmask dimension
15930 * before setting the bit.
15932 * Returns 0 if the index bit successfully set, otherwise, it returns
15936 lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
15938 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
15939 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
15940 "2610 FCF (x%x) reached driver's book "
15941 "keeping dimension:x%x\n",
15942 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
15945 /* Set the eligible FCF record index bmask */
15946 set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
15948 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15949 "2790 Set FCF (x%x) to roundrobin FCF failover "
15950 "bmask\n", fcf_index);
15956 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
15957 * @phba: pointer to lpfc hba data structure.
15959 * This routine clears the FCF record index from the eligible bmask for
15960 * roundrobin failover search. It checks to make sure that the index
15961 * does not go beyond the range of the driver allocated bmask dimension
15962 * before clearing the bit.
15965 lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
15967 struct lpfc_fcf_pri *fcf_pri, *fcf_pri_next;
15968 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
15969 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
15970 "2762 FCF (x%x) reached driver's book "
15971 "keeping dimension:x%x\n",
15972 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
15975 /* Clear the eligible FCF record index bmask */
15976 spin_lock_irq(&phba->hbalock);
15977 list_for_each_entry_safe(fcf_pri, fcf_pri_next, &phba->fcf.fcf_pri_list,
15979 if (fcf_pri->fcf_rec.fcf_index == fcf_index) {
15980 list_del_init(&fcf_pri->list);
15984 spin_unlock_irq(&phba->hbalock);
15985 clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
15987 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15988 "2791 Clear FCF (x%x) from roundrobin failover "
15989 "bmask\n", fcf_index);
15993 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
15994 * @phba: pointer to lpfc hba data structure.
15996 * This routine is the completion routine for the rediscover FCF table mailbox
15997 * command. If the mailbox command returned failure, it will try to stop the
15998 * FCF rediscover wait timer.
16001 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
16003 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
16004 uint32_t shdr_status, shdr_add_status;
16006 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
16008 shdr_status = bf_get(lpfc_mbox_hdr_status,
16009 &redisc_fcf->header.cfg_shdr.response);
16010 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
16011 &redisc_fcf->header.cfg_shdr.response);
16012 if (shdr_status || shdr_add_status) {
16013 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
16014 "2746 Requesting for FCF rediscovery failed "
16015 "status x%x add_status x%x\n",
16016 shdr_status, shdr_add_status);
16017 if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
16018 spin_lock_irq(&phba->hbalock);
16019 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
16020 spin_unlock_irq(&phba->hbalock);
16022 * CVL event triggered FCF rediscover request failed,
16023 * last resort to re-try current registered FCF entry.
16025 lpfc_retry_pport_discovery(phba);
16027 spin_lock_irq(&phba->hbalock);
16028 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
16029 spin_unlock_irq(&phba->hbalock);
16031 * DEAD FCF event triggered FCF rediscover request
16032 * failed, last resort to fail over as a link down
16033 * to FCF registration.
16035 lpfc_sli4_fcf_dead_failthrough(phba);
16038 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
16039 "2775 Start FCF rediscover quiescent timer\n");
16041 * Start FCF rediscovery wait timer for pending FCF
16042 * before rescan FCF record table.
16044 lpfc_fcf_redisc_wait_start_timer(phba);
16047 mempool_free(mbox, phba->mbox_mem_pool);
16051 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
16052 * @phba: pointer to lpfc hba data structure.
16054 * This routine is invoked to request for rediscovery of the entire FCF table
16058 lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
16060 LPFC_MBOXQ_t *mbox;
16061 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
16064 /* Cancel retry delay timers to all vports before FCF rediscover */
16065 lpfc_cancel_all_vport_retry_delay_timer(phba);
16067 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16069 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16070 "2745 Failed to allocate mbox for "
16071 "requesting FCF rediscover.\n");
16075 length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
16076 sizeof(struct lpfc_sli4_cfg_mhdr));
16077 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16078 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
16079 length, LPFC_SLI4_MBX_EMBED);
16081 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
16082 /* Set count to 0 for invalidating the entire FCF database */
16083 bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
16085 /* Issue the mailbox command asynchronously */
16086 mbox->vport = phba->pport;
16087 mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
16088 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
16090 if (rc == MBX_NOT_FINISHED) {
16091 mempool_free(mbox, phba->mbox_mem_pool);
16098 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
16099 * @phba: pointer to lpfc hba data structure.
16101 * This function is the failover routine as a last resort to the FCF DEAD
16102 * event when driver failed to perform fast FCF failover.
16105 lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
16107 uint32_t link_state;
16110 * Last resort as FCF DEAD event failover will treat this as
16111 * a link down, but save the link state because we don't want
16112 * it to be changed to Link Down unless it is already down.
16114 link_state = phba->link_state;
16115 lpfc_linkdown(phba);
16116 phba->link_state = link_state;
16118 /* Unregister FCF if no devices connected to it */
16119 lpfc_unregister_unused_fcf(phba);
16123 * lpfc_sli_get_config_region23 - Get sli3 port region 23 data.
16124 * @phba: pointer to lpfc hba data structure.
16125 * @rgn23_data: pointer to configure region 23 data.
16127 * This function gets SLI3 port configure region 23 data through memory dump
16128 * mailbox command. When it successfully retrieves data, the size of the data
16129 * will be returned, otherwise, 0 will be returned.
16132 lpfc_sli_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
16134 LPFC_MBOXQ_t *pmb = NULL;
16136 uint32_t offset = 0;
16142 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16144 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16145 "2600 failed to allocate mailbox memory\n");
16151 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
16152 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
16154 if (rc != MBX_SUCCESS) {
16155 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
16156 "2601 failed to read config "
16157 "region 23, rc 0x%x Status 0x%x\n",
16158 rc, mb->mbxStatus);
16159 mb->un.varDmp.word_cnt = 0;
16162 * dump mem may return a zero when finished or we got a
16163 * mailbox error, either way we are done.
16165 if (mb->un.varDmp.word_cnt == 0)
16167 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
16168 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
16170 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
16171 rgn23_data + offset,
16172 mb->un.varDmp.word_cnt);
16173 offset += mb->un.varDmp.word_cnt;
16174 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
16176 mempool_free(pmb, phba->mbox_mem_pool);
16181 * lpfc_sli4_get_config_region23 - Get sli4 port region 23 data.
16182 * @phba: pointer to lpfc hba data structure.
16183 * @rgn23_data: pointer to configure region 23 data.
16185 * This function gets SLI4 port configure region 23 data through memory dump
16186 * mailbox command. When it successfully retrieves data, the size of the data
16187 * will be returned, otherwise, 0 will be returned.
16190 lpfc_sli4_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
16192 LPFC_MBOXQ_t *mboxq = NULL;
16193 struct lpfc_dmabuf *mp = NULL;
16194 struct lpfc_mqe *mqe;
16195 uint32_t data_length = 0;
16201 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16203 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16204 "3105 failed to allocate mailbox memory\n");
16208 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq))
16210 mqe = &mboxq->u.mqe;
16211 mp = (struct lpfc_dmabuf *) mboxq->context1;
16212 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
16215 data_length = mqe->un.mb_words[5];
16216 if (data_length == 0)
16218 if (data_length > DMP_RGN23_SIZE) {
16222 lpfc_sli_pcimem_bcopy((char *)mp->virt, rgn23_data, data_length);
16224 mempool_free(mboxq, phba->mbox_mem_pool);
16226 lpfc_mbuf_free(phba, mp->virt, mp->phys);
16229 return data_length;
16233 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
16234 * @phba: pointer to lpfc hba data structure.
16236 * This function read region 23 and parse TLV for port status to
16237 * decide if the user disaled the port. If the TLV indicates the
16238 * port is disabled, the hba_flag is set accordingly.
16241 lpfc_sli_read_link_ste(struct lpfc_hba *phba)
16243 uint8_t *rgn23_data = NULL;
16244 uint32_t if_type, data_size, sub_tlv_len, tlv_offset;
16245 uint32_t offset = 0;
16247 /* Get adapter Region 23 data */
16248 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
16252 if (phba->sli_rev < LPFC_SLI_REV4)
16253 data_size = lpfc_sli_get_config_region23(phba, rgn23_data);
16255 if_type = bf_get(lpfc_sli_intf_if_type,
16256 &phba->sli4_hba.sli_intf);
16257 if (if_type == LPFC_SLI_INTF_IF_TYPE_0)
16259 data_size = lpfc_sli4_get_config_region23(phba, rgn23_data);
16265 /* Check the region signature first */
16266 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
16267 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16268 "2619 Config region 23 has bad signature\n");
16273 /* Check the data structure version */
16274 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
16275 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16276 "2620 Config region 23 has bad version\n");
16281 /* Parse TLV entries in the region */
16282 while (offset < data_size) {
16283 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
16286 * If the TLV is not driver specific TLV or driver id is
16287 * not linux driver id, skip the record.
16289 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
16290 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
16291 (rgn23_data[offset + 3] != 0)) {
16292 offset += rgn23_data[offset + 1] * 4 + 4;
16296 /* Driver found a driver specific TLV in the config region */
16297 sub_tlv_len = rgn23_data[offset + 1] * 4;
16302 * Search for configured port state sub-TLV.
16304 while ((offset < data_size) &&
16305 (tlv_offset < sub_tlv_len)) {
16306 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
16311 if (rgn23_data[offset] != PORT_STE_TYPE) {
16312 offset += rgn23_data[offset + 1] * 4 + 4;
16313 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
16317 /* This HBA contains PORT_STE configured */
16318 if (!rgn23_data[offset + 2])
16319 phba->hba_flag |= LINK_DISABLED;
16331 * lpfc_wr_object - write an object to the firmware
16332 * @phba: HBA structure that indicates port to create a queue on.
16333 * @dmabuf_list: list of dmabufs to write to the port.
16334 * @size: the total byte value of the objects to write to the port.
16335 * @offset: the current offset to be used to start the transfer.
16337 * This routine will create a wr_object mailbox command to send to the port.
16338 * the mailbox command will be constructed using the dma buffers described in
16339 * @dmabuf_list to create a list of BDEs. This routine will fill in as many
16340 * BDEs that the imbedded mailbox can support. The @offset variable will be
16341 * used to indicate the starting offset of the transfer and will also return
16342 * the offset after the write object mailbox has completed. @size is used to
16343 * determine the end of the object and whether the eof bit should be set.
16345 * Return 0 is successful and offset will contain the the new offset to use
16346 * for the next write.
16347 * Return negative value for error cases.
16350 lpfc_wr_object(struct lpfc_hba *phba, struct list_head *dmabuf_list,
16351 uint32_t size, uint32_t *offset)
16353 struct lpfc_mbx_wr_object *wr_object;
16354 LPFC_MBOXQ_t *mbox;
16356 uint32_t shdr_status, shdr_add_status;
16358 union lpfc_sli4_cfg_shdr *shdr;
16359 struct lpfc_dmabuf *dmabuf;
16360 uint32_t written = 0;
16362 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16366 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16367 LPFC_MBOX_OPCODE_WRITE_OBJECT,
16368 sizeof(struct lpfc_mbx_wr_object) -
16369 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
16371 wr_object = (struct lpfc_mbx_wr_object *)&mbox->u.mqe.un.wr_object;
16372 wr_object->u.request.write_offset = *offset;
16373 sprintf((uint8_t *)wr_object->u.request.object_name, "/");
16374 wr_object->u.request.object_name[0] =
16375 cpu_to_le32(wr_object->u.request.object_name[0]);
16376 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 0);
16377 list_for_each_entry(dmabuf, dmabuf_list, list) {
16378 if (i >= LPFC_MBX_WR_CONFIG_MAX_BDE || written >= size)
16380 wr_object->u.request.bde[i].addrLow = putPaddrLow(dmabuf->phys);
16381 wr_object->u.request.bde[i].addrHigh =
16382 putPaddrHigh(dmabuf->phys);
16383 if (written + SLI4_PAGE_SIZE >= size) {
16384 wr_object->u.request.bde[i].tus.f.bdeSize =
16386 written += (size - written);
16387 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 1);
16389 wr_object->u.request.bde[i].tus.f.bdeSize =
16391 written += SLI4_PAGE_SIZE;
16395 wr_object->u.request.bde_count = i;
16396 bf_set(lpfc_wr_object_write_length, &wr_object->u.request, written);
16397 if (!phba->sli4_hba.intr_enable)
16398 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16400 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
16401 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16403 /* The IOCTL status is embedded in the mailbox subheader. */
16404 shdr = (union lpfc_sli4_cfg_shdr *) &wr_object->header.cfg_shdr;
16405 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16406 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16407 if (rc != MBX_TIMEOUT)
16408 mempool_free(mbox, phba->mbox_mem_pool);
16409 if (shdr_status || shdr_add_status || rc) {
16410 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16411 "3025 Write Object mailbox failed with "
16412 "status x%x add_status x%x, mbx status x%x\n",
16413 shdr_status, shdr_add_status, rc);
16416 *offset += wr_object->u.response.actual_write_length;
16421 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
16422 * @vport: pointer to vport data structure.
16424 * This function iterate through the mailboxq and clean up all REG_LOGIN
16425 * and REG_VPI mailbox commands associated with the vport. This function
16426 * is called when driver want to restart discovery of the vport due to
16427 * a Clear Virtual Link event.
16430 lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
16432 struct lpfc_hba *phba = vport->phba;
16433 LPFC_MBOXQ_t *mb, *nextmb;
16434 struct lpfc_dmabuf *mp;
16435 struct lpfc_nodelist *ndlp;
16436 struct lpfc_nodelist *act_mbx_ndlp = NULL;
16437 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
16438 LIST_HEAD(mbox_cmd_list);
16439 uint8_t restart_loop;
16441 /* Clean up internally queued mailbox commands with the vport */
16442 spin_lock_irq(&phba->hbalock);
16443 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
16444 if (mb->vport != vport)
16447 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
16448 (mb->u.mb.mbxCommand != MBX_REG_VPI))
16451 list_del(&mb->list);
16452 list_add_tail(&mb->list, &mbox_cmd_list);
16454 /* Clean up active mailbox command with the vport */
16455 mb = phba->sli.mbox_active;
16456 if (mb && (mb->vport == vport)) {
16457 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
16458 (mb->u.mb.mbxCommand == MBX_REG_VPI))
16459 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16460 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
16461 act_mbx_ndlp = (struct lpfc_nodelist *)mb->context2;
16462 /* Put reference count for delayed processing */
16463 act_mbx_ndlp = lpfc_nlp_get(act_mbx_ndlp);
16464 /* Unregister the RPI when mailbox complete */
16465 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
16468 /* Cleanup any mailbox completions which are not yet processed */
16471 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
16473 * If this mailox is already processed or it is
16474 * for another vport ignore it.
16476 if ((mb->vport != vport) ||
16477 (mb->mbox_flag & LPFC_MBX_IMED_UNREG))
16480 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
16481 (mb->u.mb.mbxCommand != MBX_REG_VPI))
16484 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16485 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
16486 ndlp = (struct lpfc_nodelist *)mb->context2;
16487 /* Unregister the RPI when mailbox complete */
16488 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
16490 spin_unlock_irq(&phba->hbalock);
16491 spin_lock(shost->host_lock);
16492 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
16493 spin_unlock(shost->host_lock);
16494 spin_lock_irq(&phba->hbalock);
16498 } while (restart_loop);
16500 spin_unlock_irq(&phba->hbalock);
16502 /* Release the cleaned-up mailbox commands */
16503 while (!list_empty(&mbox_cmd_list)) {
16504 list_remove_head(&mbox_cmd_list, mb, LPFC_MBOXQ_t, list);
16505 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
16506 mp = (struct lpfc_dmabuf *) (mb->context1);
16508 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
16511 ndlp = (struct lpfc_nodelist *) mb->context2;
16512 mb->context2 = NULL;
16514 spin_lock(shost->host_lock);
16515 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
16516 spin_unlock(shost->host_lock);
16517 lpfc_nlp_put(ndlp);
16520 mempool_free(mb, phba->mbox_mem_pool);
16523 /* Release the ndlp with the cleaned-up active mailbox command */
16524 if (act_mbx_ndlp) {
16525 spin_lock(shost->host_lock);
16526 act_mbx_ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
16527 spin_unlock(shost->host_lock);
16528 lpfc_nlp_put(act_mbx_ndlp);
16533 * lpfc_drain_txq - Drain the txq
16534 * @phba: Pointer to HBA context object.
16536 * This function attempt to submit IOCBs on the txq
16537 * to the adapter. For SLI4 adapters, the txq contains
16538 * ELS IOCBs that have been deferred because the there
16539 * are no SGLs. This congestion can occur with large
16540 * vport counts during node discovery.
16544 lpfc_drain_txq(struct lpfc_hba *phba)
16546 LIST_HEAD(completions);
16547 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
16548 struct lpfc_iocbq *piocbq = 0;
16549 unsigned long iflags = 0;
16550 char *fail_msg = NULL;
16551 struct lpfc_sglq *sglq;
16552 union lpfc_wqe wqe;
16555 spin_lock_irqsave(&pring->ring_lock, iflags);
16556 list_for_each_entry(piocbq, &pring->txq, list) {
16560 if (txq_cnt > pring->txq_max)
16561 pring->txq_max = txq_cnt;
16563 spin_unlock_irqrestore(&pring->ring_lock, iflags);
16565 while (!list_empty(&pring->txq)) {
16566 spin_lock_irqsave(&pring->ring_lock, iflags);
16568 piocbq = lpfc_sli_ringtx_get(phba, pring);
16570 spin_unlock_irqrestore(&pring->ring_lock, iflags);
16571 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16572 "2823 txq empty and txq_cnt is %d\n ",
16576 sglq = __lpfc_sli_get_sglq(phba, piocbq);
16578 __lpfc_sli_ringtx_put(phba, pring, piocbq);
16579 spin_unlock_irqrestore(&pring->ring_lock, iflags);
16584 /* The xri and iocb resources secured,
16585 * attempt to issue request
16587 piocbq->sli4_lxritag = sglq->sli4_lxritag;
16588 piocbq->sli4_xritag = sglq->sli4_xritag;
16589 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocbq, sglq))
16590 fail_msg = "to convert bpl to sgl";
16591 else if (lpfc_sli4_iocb2wqe(phba, piocbq, &wqe))
16592 fail_msg = "to convert iocb to wqe";
16593 else if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
16594 fail_msg = " - Wq is full";
16596 lpfc_sli_ringtxcmpl_put(phba, pring, piocbq);
16599 /* Failed means we can't issue and need to cancel */
16600 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16601 "2822 IOCB failed %s iotag 0x%x "
16604 piocbq->iotag, piocbq->sli4_xritag);
16605 list_add_tail(&piocbq->list, &completions);
16607 spin_unlock_irqrestore(&pring->ring_lock, iflags);
16610 /* Cancel all the IOCBs that cannot be issued */
16611 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
16612 IOERR_SLI_ABORTED);