1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2015 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>
27 #include <linux/lockdep.h>
29 #include <scsi/scsi.h>
30 #include <scsi/scsi_cmnd.h>
31 #include <scsi/scsi_device.h>
32 #include <scsi/scsi_host.h>
33 #include <scsi/scsi_transport_fc.h>
34 #include <scsi/fc/fc_fs.h>
35 #include <linux/aer.h>
40 #include "lpfc_sli4.h"
42 #include "lpfc_disc.h"
43 #include "lpfc_scsi.h"
45 #include "lpfc_crtn.h"
46 #include "lpfc_logmsg.h"
47 #include "lpfc_compat.h"
48 #include "lpfc_debugfs.h"
49 #include "lpfc_vport.h"
51 /* There are only four IOCB completion types. */
52 typedef enum _lpfc_iocb_type {
60 /* Provide function prototypes local to this module. */
61 static int lpfc_sli_issue_mbox_s4(struct lpfc_hba *, LPFC_MBOXQ_t *,
63 static int lpfc_sli4_read_rev(struct lpfc_hba *, LPFC_MBOXQ_t *,
64 uint8_t *, uint32_t *);
65 static struct lpfc_iocbq *lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *,
67 static void lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *,
69 static int lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *, struct lpfc_queue *,
71 static int lpfc_sli4_post_els_sgl_list(struct lpfc_hba *, struct list_head *,
73 static void lpfc_sli4_hba_handle_eqe(struct lpfc_hba *, struct lpfc_eqe *,
75 static bool lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba);
76 static bool lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba);
79 lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq)
85 * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
86 * @q: The Work Queue to operate on.
87 * @wqe: The work Queue Entry to put on the Work queue.
89 * This routine will copy the contents of @wqe to the next available entry on
90 * the @q. This function will then ring the Work Queue Doorbell to signal the
91 * HBA to start processing the Work Queue Entry. This function returns 0 if
92 * successful. If no entries are available on @q then this function will return
94 * The caller is expected to hold the hbalock when calling this routine.
97 lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe)
99 union lpfc_wqe *temp_wqe;
100 struct lpfc_register doorbell;
104 /* sanity check on queue memory */
107 temp_wqe = q->qe[q->host_index].wqe;
109 /* If the host has not yet processed the next entry then we are done */
110 idx = ((q->host_index + 1) % q->entry_count);
111 if (idx == q->hba_index) {
116 /* set consumption flag every once in a while */
117 if (!((q->host_index + 1) % q->entry_repost))
118 bf_set(wqe_wqec, &wqe->generic.wqe_com, 1);
119 if (q->phba->sli3_options & LPFC_SLI4_PHWQ_ENABLED)
120 bf_set(wqe_wqid, &wqe->generic.wqe_com, q->queue_id);
121 lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size);
123 /* Update the host index before invoking device */
124 host_index = q->host_index;
130 if (q->db_format == LPFC_DB_LIST_FORMAT) {
131 bf_set(lpfc_wq_db_list_fm_num_posted, &doorbell, 1);
132 bf_set(lpfc_wq_db_list_fm_index, &doorbell, host_index);
133 bf_set(lpfc_wq_db_list_fm_id, &doorbell, q->queue_id);
134 } else if (q->db_format == LPFC_DB_RING_FORMAT) {
135 bf_set(lpfc_wq_db_ring_fm_num_posted, &doorbell, 1);
136 bf_set(lpfc_wq_db_ring_fm_id, &doorbell, q->queue_id);
140 writel(doorbell.word0, q->db_regaddr);
146 * lpfc_sli4_wq_release - Updates internal hba index for WQ
147 * @q: The Work Queue to operate on.
148 * @index: The index to advance the hba index to.
150 * This routine will update the HBA index of a queue to reflect consumption of
151 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
152 * an entry the host calls this function to update the queue's internal
153 * pointers. This routine returns the number of entries that were consumed by
157 lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index)
159 uint32_t released = 0;
161 /* sanity check on queue memory */
165 if (q->hba_index == index)
168 q->hba_index = ((q->hba_index + 1) % q->entry_count);
170 } while (q->hba_index != index);
175 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
176 * @q: The Mailbox Queue to operate on.
177 * @wqe: The Mailbox Queue Entry to put on the Work queue.
179 * This routine will copy the contents of @mqe to the next available entry on
180 * the @q. This function will then ring the Work Queue Doorbell to signal the
181 * HBA to start processing the Work Queue Entry. This function returns 0 if
182 * successful. If no entries are available on @q then this function will return
184 * The caller is expected to hold the hbalock when calling this routine.
187 lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
189 struct lpfc_mqe *temp_mqe;
190 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 q->host_index = ((q->host_index + 1) % q->entry_count);
209 bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1);
210 bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id);
211 writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr);
216 * lpfc_sli4_mq_release - Updates internal hba index for MQ
217 * @q: The Mailbox Queue to operate on.
219 * This routine will update the HBA index of a queue to reflect consumption of
220 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
221 * an entry the host calls this function to update the queue's internal
222 * pointers. This routine returns the number of entries that were consumed by
226 lpfc_sli4_mq_release(struct lpfc_queue *q)
228 /* sanity check on queue memory */
232 /* Clear the mailbox pointer for completion */
233 q->phba->mbox = NULL;
234 q->hba_index = ((q->hba_index + 1) % q->entry_count);
239 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
240 * @q: The Event Queue to get the first valid EQE from
242 * This routine will get the first valid Event Queue Entry from @q, update
243 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
244 * the Queue (no more work to do), or the Queue is full of EQEs that have been
245 * processed, but not popped back to the HBA then this routine will return NULL.
247 static struct lpfc_eqe *
248 lpfc_sli4_eq_get(struct lpfc_queue *q)
250 struct lpfc_eqe *eqe;
253 /* sanity check on queue memory */
256 eqe = q->qe[q->hba_index].eqe;
258 /* If the next EQE is not valid then we are done */
259 if (!bf_get_le32(lpfc_eqe_valid, eqe))
261 /* If the host has not yet processed the next entry then we are done */
262 idx = ((q->hba_index + 1) % q->entry_count);
263 if (idx == q->host_index)
269 * insert barrier for instruction interlock : data from the hardware
270 * must have the valid bit checked before it can be copied and acted
271 * upon. Given what was seen in lpfc_sli4_cq_get() of speculative
272 * instructions allowing action on content before valid bit checked,
273 * add barrier here as well. May not be needed as "content" is a
274 * single 32-bit entity here (vs multi word structure for cq's).
281 * lpfc_sli4_eq_clr_intr - Turn off interrupts from this EQ
282 * @q: The Event Queue to disable interrupts
286 lpfc_sli4_eq_clr_intr(struct lpfc_queue *q)
288 struct lpfc_register doorbell;
291 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
292 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
293 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
294 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
295 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
296 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
300 * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
301 * @q: The Event Queue that the host has completed processing for.
302 * @arm: Indicates whether the host wants to arms this CQ.
304 * This routine will mark all Event Queue Entries on @q, from the last
305 * known completed entry to the last entry that was processed, as completed
306 * by clearing the valid bit for each completion queue entry. Then it will
307 * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
308 * The internal host index in the @q will be updated by this routine to indicate
309 * that the host has finished processing the entries. The @arm parameter
310 * indicates that the queue should be rearmed when ringing the doorbell.
312 * This function will return the number of EQEs that were popped.
315 lpfc_sli4_eq_release(struct lpfc_queue *q, bool arm)
317 uint32_t released = 0;
318 struct lpfc_eqe *temp_eqe;
319 struct lpfc_register doorbell;
321 /* sanity check on queue memory */
325 /* while there are valid entries */
326 while (q->hba_index != q->host_index) {
327 temp_eqe = q->qe[q->host_index].eqe;
328 bf_set_le32(lpfc_eqe_valid, temp_eqe, 0);
330 q->host_index = ((q->host_index + 1) % q->entry_count);
332 if (unlikely(released == 0 && !arm))
335 /* ring doorbell for number popped */
338 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
339 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
341 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
342 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
343 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
344 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
345 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
346 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
347 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
348 if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
349 readl(q->phba->sli4_hba.EQCQDBregaddr);
354 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
355 * @q: The Completion Queue to get the first valid CQE from
357 * This routine will get the first valid Completion Queue Entry from @q, update
358 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
359 * the Queue (no more work to do), or the Queue is full of CQEs that have been
360 * processed, but not popped back to the HBA then this routine will return NULL.
362 static struct lpfc_cqe *
363 lpfc_sli4_cq_get(struct lpfc_queue *q)
365 struct lpfc_cqe *cqe;
368 /* sanity check on queue memory */
372 /* If the next CQE is not valid then we are done */
373 if (!bf_get_le32(lpfc_cqe_valid, q->qe[q->hba_index].cqe))
375 /* If the host has not yet processed the next entry then we are done */
376 idx = ((q->hba_index + 1) % q->entry_count);
377 if (idx == q->host_index)
380 cqe = q->qe[q->hba_index].cqe;
384 * insert barrier for instruction interlock : data from the hardware
385 * must have the valid bit checked before it can be copied and acted
386 * upon. Speculative instructions were allowing a bcopy at the start
387 * of lpfc_sli4_fp_handle_wcqe(), which is called immediately
388 * after our return, to copy data before the valid bit check above
389 * was done. As such, some of the copied data was stale. The barrier
390 * ensures the check is before any data is copied.
397 * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ
398 * @q: The Completion Queue that the host has completed processing for.
399 * @arm: Indicates whether the host wants to arms this CQ.
401 * This routine will mark all Completion queue entries on @q, from the last
402 * known completed entry to the last entry that was processed, as completed
403 * by clearing the valid bit for each completion queue entry. Then it will
404 * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
405 * The internal host index in the @q will be updated by this routine to indicate
406 * that the host has finished processing the entries. The @arm parameter
407 * indicates that the queue should be rearmed when ringing the doorbell.
409 * This function will return the number of CQEs that were released.
412 lpfc_sli4_cq_release(struct lpfc_queue *q, bool arm)
414 uint32_t released = 0;
415 struct lpfc_cqe *temp_qe;
416 struct lpfc_register doorbell;
418 /* sanity check on queue memory */
421 /* while there are valid entries */
422 while (q->hba_index != q->host_index) {
423 temp_qe = q->qe[q->host_index].cqe;
424 bf_set_le32(lpfc_cqe_valid, temp_qe, 0);
426 q->host_index = ((q->host_index + 1) % q->entry_count);
428 if (unlikely(released == 0 && !arm))
431 /* ring doorbell for number popped */
434 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
435 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
436 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION);
437 bf_set(lpfc_eqcq_doorbell_cqid_hi, &doorbell,
438 (q->queue_id >> LPFC_CQID_HI_FIELD_SHIFT));
439 bf_set(lpfc_eqcq_doorbell_cqid_lo, &doorbell, q->queue_id);
440 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
445 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
446 * @q: The Header Receive Queue to operate on.
447 * @wqe: The Receive Queue Entry to put on the Receive queue.
449 * This routine will copy the contents of @wqe to the next available entry on
450 * the @q. This function will then ring the Receive Queue Doorbell to signal the
451 * HBA to start processing the Receive Queue Entry. This function returns the
452 * index that the rqe was copied to if successful. If no entries are available
453 * on @q then this function will return -ENOMEM.
454 * The caller is expected to hold the hbalock when calling this routine.
457 lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
458 struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe)
460 struct lpfc_rqe *temp_hrqe;
461 struct lpfc_rqe *temp_drqe;
462 struct lpfc_register doorbell;
465 /* sanity check on queue memory */
466 if (unlikely(!hq) || unlikely(!dq))
468 put_index = hq->host_index;
469 temp_hrqe = hq->qe[hq->host_index].rqe;
470 temp_drqe = dq->qe[dq->host_index].rqe;
472 if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ)
474 if (hq->host_index != dq->host_index)
476 /* If the host has not yet processed the next entry then we are done */
477 if (((hq->host_index + 1) % hq->entry_count) == hq->hba_index)
479 lpfc_sli_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size);
480 lpfc_sli_pcimem_bcopy(drqe, temp_drqe, dq->entry_size);
482 /* Update the host index to point to the next slot */
483 hq->host_index = ((hq->host_index + 1) % hq->entry_count);
484 dq->host_index = ((dq->host_index + 1) % dq->entry_count);
486 /* Ring The Header Receive Queue Doorbell */
487 if (!(hq->host_index % hq->entry_repost)) {
489 if (hq->db_format == LPFC_DB_RING_FORMAT) {
490 bf_set(lpfc_rq_db_ring_fm_num_posted, &doorbell,
492 bf_set(lpfc_rq_db_ring_fm_id, &doorbell, hq->queue_id);
493 } else if (hq->db_format == LPFC_DB_LIST_FORMAT) {
494 bf_set(lpfc_rq_db_list_fm_num_posted, &doorbell,
496 bf_set(lpfc_rq_db_list_fm_index, &doorbell,
498 bf_set(lpfc_rq_db_list_fm_id, &doorbell, hq->queue_id);
502 writel(doorbell.word0, hq->db_regaddr);
508 * lpfc_sli4_rq_release - Updates internal hba index for RQ
509 * @q: The Header Receive Queue to operate on.
511 * This routine will update the HBA index of a queue to reflect consumption of
512 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
513 * consumed an entry the host calls this function to update the queue's
514 * internal pointers. This routine returns the number of entries that were
515 * consumed by the HBA.
518 lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq)
520 /* sanity check on queue memory */
521 if (unlikely(!hq) || unlikely(!dq))
524 if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ))
526 hq->hba_index = ((hq->hba_index + 1) % hq->entry_count);
527 dq->hba_index = ((dq->hba_index + 1) % dq->entry_count);
532 * lpfc_cmd_iocb - Get next command iocb entry in the ring
533 * @phba: Pointer to HBA context object.
534 * @pring: Pointer to driver SLI ring object.
536 * This function returns pointer to next command iocb entry
537 * in the command ring. The caller must hold hbalock to prevent
538 * other threads consume the next command iocb.
539 * SLI-2/SLI-3 provide different sized iocbs.
541 static inline IOCB_t *
542 lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
544 return (IOCB_t *) (((char *) pring->sli.sli3.cmdringaddr) +
545 pring->sli.sli3.cmdidx * phba->iocb_cmd_size);
549 * lpfc_resp_iocb - Get next response iocb entry in the ring
550 * @phba: Pointer to HBA context object.
551 * @pring: Pointer to driver SLI ring object.
553 * This function returns pointer to next response iocb entry
554 * in the response ring. The caller must hold hbalock to make sure
555 * that no other thread consume the next response iocb.
556 * SLI-2/SLI-3 provide different sized iocbs.
558 static inline IOCB_t *
559 lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
561 return (IOCB_t *) (((char *) pring->sli.sli3.rspringaddr) +
562 pring->sli.sli3.rspidx * phba->iocb_rsp_size);
566 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
567 * @phba: Pointer to HBA context object.
569 * This function is called with hbalock held. This function
570 * allocates a new driver iocb object from the iocb pool. If the
571 * allocation is successful, it returns pointer to the newly
572 * allocated iocb object else it returns NULL.
575 __lpfc_sli_get_iocbq(struct lpfc_hba *phba)
577 struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
578 struct lpfc_iocbq * iocbq = NULL;
580 lockdep_assert_held(&phba->hbalock);
582 list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
585 if (phba->iocb_cnt > phba->iocb_max)
586 phba->iocb_max = phba->iocb_cnt;
591 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
592 * @phba: Pointer to HBA context object.
593 * @xritag: XRI value.
595 * This function clears 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.
602 static struct lpfc_sglq *
603 __lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
605 struct lpfc_sglq *sglq;
607 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
608 phba->sli4_hba.lpfc_sglq_active_list[xritag] = NULL;
613 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
614 * @phba: Pointer to HBA context object.
615 * @xritag: XRI value.
617 * This function returns the sglq pointer from the array of acive
618 * sglq's. The xritag that is passed in is used to index into the
619 * array. Before the xritag can be used it needs to be adjusted
620 * by subtracting the xribase.
622 * Returns sglq ponter = success, NULL = Failure.
625 __lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
627 struct lpfc_sglq *sglq;
629 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
634 * lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
635 * @phba: Pointer to HBA context object.
636 * @xritag: xri used in this exchange.
637 * @rrq: The RRQ to be cleared.
641 lpfc_clr_rrq_active(struct lpfc_hba *phba,
643 struct lpfc_node_rrq *rrq)
645 struct lpfc_nodelist *ndlp = NULL;
647 if ((rrq->vport) && NLP_CHK_NODE_ACT(rrq->ndlp))
648 ndlp = lpfc_findnode_did(rrq->vport, rrq->nlp_DID);
650 /* The target DID could have been swapped (cable swap)
651 * we should use the ndlp from the findnode if it is
654 if ((!ndlp) && rrq->ndlp)
660 if (test_and_clear_bit(xritag, ndlp->active_rrqs_xri_bitmap)) {
663 rrq->rrq_stop_time = 0;
666 mempool_free(rrq, phba->rrq_pool);
670 * lpfc_handle_rrq_active - Checks if RRQ has waithed RATOV.
671 * @phba: Pointer to HBA context object.
673 * This function is called with hbalock held. This function
674 * Checks if stop_time (ratov from setting rrq active) has
675 * been reached, if it has and the send_rrq flag is set then
676 * it will call lpfc_send_rrq. If the send_rrq flag is not set
677 * then it will just call the routine to clear the rrq and
678 * free the rrq resource.
679 * The timer is set to the next rrq that is going to expire before
680 * leaving the routine.
684 lpfc_handle_rrq_active(struct lpfc_hba *phba)
686 struct lpfc_node_rrq *rrq;
687 struct lpfc_node_rrq *nextrrq;
688 unsigned long next_time;
689 unsigned long iflags;
692 spin_lock_irqsave(&phba->hbalock, iflags);
693 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
694 next_time = jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
695 list_for_each_entry_safe(rrq, nextrrq,
696 &phba->active_rrq_list, list) {
697 if (time_after(jiffies, rrq->rrq_stop_time))
698 list_move(&rrq->list, &send_rrq);
699 else if (time_before(rrq->rrq_stop_time, next_time))
700 next_time = rrq->rrq_stop_time;
702 spin_unlock_irqrestore(&phba->hbalock, iflags);
703 if ((!list_empty(&phba->active_rrq_list)) &&
704 (!(phba->pport->load_flag & FC_UNLOADING)))
705 mod_timer(&phba->rrq_tmr, next_time);
706 list_for_each_entry_safe(rrq, nextrrq, &send_rrq, list) {
707 list_del(&rrq->list);
709 /* this call will free the rrq */
710 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
711 else if (lpfc_send_rrq(phba, rrq)) {
712 /* if we send the rrq then the completion handler
713 * will clear the bit in the xribitmap.
715 lpfc_clr_rrq_active(phba, rrq->xritag,
722 * lpfc_get_active_rrq - Get the active RRQ for this exchange.
723 * @vport: Pointer to vport context object.
724 * @xri: The xri used in the exchange.
725 * @did: The targets DID for this exchange.
727 * returns NULL = rrq not found in the phba->active_rrq_list.
728 * rrq = rrq for this xri and target.
730 struct lpfc_node_rrq *
731 lpfc_get_active_rrq(struct lpfc_vport *vport, uint16_t xri, uint32_t did)
733 struct lpfc_hba *phba = vport->phba;
734 struct lpfc_node_rrq *rrq;
735 struct lpfc_node_rrq *nextrrq;
736 unsigned long iflags;
738 if (phba->sli_rev != LPFC_SLI_REV4)
740 spin_lock_irqsave(&phba->hbalock, iflags);
741 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) {
742 if (rrq->vport == vport && rrq->xritag == xri &&
743 rrq->nlp_DID == did){
744 list_del(&rrq->list);
745 spin_unlock_irqrestore(&phba->hbalock, iflags);
749 spin_unlock_irqrestore(&phba->hbalock, iflags);
754 * lpfc_cleanup_vports_rrqs - Remove and clear the active RRQ for this vport.
755 * @vport: Pointer to vport context object.
756 * @ndlp: Pointer to the lpfc_node_list structure.
757 * If ndlp is NULL Remove all active RRQs for this vport from the
758 * phba->active_rrq_list and clear the rrq.
759 * If ndlp is not NULL then only remove rrqs for this vport & this ndlp.
762 lpfc_cleanup_vports_rrqs(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
765 struct lpfc_hba *phba = vport->phba;
766 struct lpfc_node_rrq *rrq;
767 struct lpfc_node_rrq *nextrrq;
768 unsigned long iflags;
771 if (phba->sli_rev != LPFC_SLI_REV4)
774 lpfc_sli4_vport_delete_els_xri_aborted(vport);
775 lpfc_sli4_vport_delete_fcp_xri_aborted(vport);
777 spin_lock_irqsave(&phba->hbalock, iflags);
778 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list)
779 if ((rrq->vport == vport) && (!ndlp || rrq->ndlp == ndlp))
780 list_move(&rrq->list, &rrq_list);
781 spin_unlock_irqrestore(&phba->hbalock, iflags);
783 list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
784 list_del(&rrq->list);
785 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
790 * lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
791 * @phba: Pointer to HBA context object.
792 * @ndlp: Targets nodelist pointer for this exchange.
793 * @xritag the xri in the bitmap to test.
795 * This function is called with hbalock held. This function
796 * returns 0 = rrq not active for this xri
797 * 1 = rrq is valid for this xri.
800 lpfc_test_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
803 lockdep_assert_held(&phba->hbalock);
806 if (!ndlp->active_rrqs_xri_bitmap)
808 if (test_bit(xritag, ndlp->active_rrqs_xri_bitmap))
815 * lpfc_set_rrq_active - set RRQ active bit in xri_bitmap.
816 * @phba: Pointer to HBA context object.
817 * @ndlp: nodelist pointer for this target.
818 * @xritag: xri used in this exchange.
819 * @rxid: Remote Exchange ID.
820 * @send_rrq: Flag used to determine if we should send rrq els cmd.
822 * This function takes the hbalock.
823 * The active bit is always set in the active rrq xri_bitmap even
824 * if there is no slot avaiable for the other rrq information.
826 * returns 0 rrq actived for this xri
827 * < 0 No memory or invalid ndlp.
830 lpfc_set_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
831 uint16_t xritag, uint16_t rxid, uint16_t send_rrq)
833 unsigned long iflags;
834 struct lpfc_node_rrq *rrq;
840 if (!phba->cfg_enable_rrq)
843 spin_lock_irqsave(&phba->hbalock, iflags);
844 if (phba->pport->load_flag & FC_UNLOADING) {
845 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
850 * set the active bit even if there is no mem available.
852 if (NLP_CHK_FREE_REQ(ndlp))
855 if (ndlp->vport && (ndlp->vport->load_flag & FC_UNLOADING))
858 if (!ndlp->active_rrqs_xri_bitmap)
861 if (test_and_set_bit(xritag, ndlp->active_rrqs_xri_bitmap))
864 spin_unlock_irqrestore(&phba->hbalock, iflags);
865 rrq = mempool_alloc(phba->rrq_pool, GFP_KERNEL);
867 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
868 "3155 Unable to allocate RRQ xri:0x%x rxid:0x%x"
869 " DID:0x%x Send:%d\n",
870 xritag, rxid, ndlp->nlp_DID, send_rrq);
873 if (phba->cfg_enable_rrq == 1)
874 rrq->send_rrq = send_rrq;
877 rrq->xritag = xritag;
878 rrq->rrq_stop_time = jiffies +
879 msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
881 rrq->nlp_DID = ndlp->nlp_DID;
882 rrq->vport = ndlp->vport;
884 spin_lock_irqsave(&phba->hbalock, iflags);
885 empty = list_empty(&phba->active_rrq_list);
886 list_add_tail(&rrq->list, &phba->active_rrq_list);
887 phba->hba_flag |= HBA_RRQ_ACTIVE;
889 lpfc_worker_wake_up(phba);
890 spin_unlock_irqrestore(&phba->hbalock, iflags);
893 spin_unlock_irqrestore(&phba->hbalock, iflags);
894 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
895 "2921 Can't set rrq active xri:0x%x rxid:0x%x"
896 " DID:0x%x Send:%d\n",
897 xritag, rxid, ndlp->nlp_DID, send_rrq);
902 * __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool
903 * @phba: Pointer to HBA context object.
904 * @piocb: Pointer to the iocbq.
906 * This function is called with the ring lock held. This function
907 * gets a new driver sglq object from the sglq list. If the
908 * list is not empty then it is successful, it returns pointer to the newly
909 * allocated sglq object else it returns NULL.
911 static struct lpfc_sglq *
912 __lpfc_sli_get_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
914 struct list_head *lpfc_sgl_list = &phba->sli4_hba.lpfc_sgl_list;
915 struct lpfc_sglq *sglq = NULL;
916 struct lpfc_sglq *start_sglq = NULL;
917 struct lpfc_scsi_buf *lpfc_cmd;
918 struct lpfc_nodelist *ndlp;
921 lockdep_assert_held(&phba->hbalock);
923 if (piocbq->iocb_flag & LPFC_IO_FCP) {
924 lpfc_cmd = (struct lpfc_scsi_buf *) piocbq->context1;
925 ndlp = lpfc_cmd->rdata->pnode;
926 } else if ((piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) &&
927 !(piocbq->iocb_flag & LPFC_IO_LIBDFC)) {
928 ndlp = piocbq->context_un.ndlp;
929 } else if (piocbq->iocb_flag & LPFC_IO_LIBDFC) {
930 if (piocbq->iocb_flag & LPFC_IO_LOOPBACK)
933 ndlp = piocbq->context_un.ndlp;
935 ndlp = piocbq->context1;
938 list_remove_head(lpfc_sgl_list, sglq, struct lpfc_sglq, list);
943 if (lpfc_test_rrq_active(phba, ndlp, sglq->sli4_lxritag)) {
944 /* This xri has an rrq outstanding for this DID.
945 * put it back in the list and get another xri.
947 list_add_tail(&sglq->list, lpfc_sgl_list);
949 list_remove_head(lpfc_sgl_list, sglq,
950 struct lpfc_sglq, list);
951 if (sglq == start_sglq) {
959 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
960 sglq->state = SGL_ALLOCATED;
966 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
967 * @phba: Pointer to HBA context object.
969 * This function is called with no lock held. This function
970 * allocates a new driver iocb object from the iocb pool. If the
971 * allocation is successful, it returns pointer to the newly
972 * allocated iocb object else it returns NULL.
975 lpfc_sli_get_iocbq(struct lpfc_hba *phba)
977 struct lpfc_iocbq * iocbq = NULL;
978 unsigned long iflags;
980 spin_lock_irqsave(&phba->hbalock, iflags);
981 iocbq = __lpfc_sli_get_iocbq(phba);
982 spin_unlock_irqrestore(&phba->hbalock, iflags);
987 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
988 * @phba: Pointer to HBA context object.
989 * @iocbq: Pointer to driver iocb object.
991 * This function is called with hbalock held to release driver
992 * iocb object to the iocb pool. The iotag in the iocb object
993 * does not change for each use of the iocb object. This function
994 * clears all other fields of the iocb object when it is freed.
995 * The sqlq structure that holds the xritag and phys and virtual
996 * mappings for the scatter gather list is retrieved from the
997 * active array of sglq. The get of the sglq pointer also clears
998 * the entry in the array. If the status of the IO indiactes that
999 * this IO was aborted then the sglq entry it put on the
1000 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
1001 * IO has good status or fails for any other reason then the sglq
1002 * entry is added to the free list (lpfc_sgl_list).
1005 __lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1007 struct lpfc_sglq *sglq;
1008 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1009 unsigned long iflag = 0;
1010 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
1012 lockdep_assert_held(&phba->hbalock);
1014 if (iocbq->sli4_xritag == NO_XRI)
1017 sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_lxritag);
1021 if ((iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) &&
1022 (sglq->state != SGL_XRI_ABORTED)) {
1023 spin_lock_irqsave(&phba->sli4_hba.abts_sgl_list_lock,
1025 list_add(&sglq->list,
1026 &phba->sli4_hba.lpfc_abts_els_sgl_list);
1027 spin_unlock_irqrestore(
1028 &phba->sli4_hba.abts_sgl_list_lock, iflag);
1030 spin_lock_irqsave(&pring->ring_lock, iflag);
1031 sglq->state = SGL_FREED;
1033 list_add_tail(&sglq->list,
1034 &phba->sli4_hba.lpfc_sgl_list);
1035 spin_unlock_irqrestore(&pring->ring_lock, iflag);
1037 /* Check if TXQ queue needs to be serviced */
1038 if (!list_empty(&pring->txq))
1039 lpfc_worker_wake_up(phba);
1045 * Clean all volatile data fields, preserve iotag and node struct.
1047 memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1048 iocbq->sli4_lxritag = NO_XRI;
1049 iocbq->sli4_xritag = NO_XRI;
1050 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1055 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
1056 * @phba: Pointer to HBA context object.
1057 * @iocbq: Pointer to driver iocb object.
1059 * This function is called with hbalock held to release driver
1060 * iocb object to the iocb pool. The iotag in the iocb object
1061 * does not change for each use of the iocb object. This function
1062 * clears all other fields of the iocb object when it is freed.
1065 __lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1067 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1069 lockdep_assert_held(&phba->hbalock);
1072 * Clean all volatile data fields, preserve iotag and node struct.
1074 memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1075 iocbq->sli4_xritag = NO_XRI;
1076 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1080 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
1081 * @phba: Pointer to HBA context object.
1082 * @iocbq: Pointer to driver iocb object.
1084 * This function is called with hbalock held to release driver
1085 * iocb object to the iocb pool. The iotag in the iocb object
1086 * does not change for each use of the iocb object. This function
1087 * clears all other fields of the iocb object when it is freed.
1090 __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1092 lockdep_assert_held(&phba->hbalock);
1094 phba->__lpfc_sli_release_iocbq(phba, iocbq);
1099 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
1100 * @phba: Pointer to HBA context object.
1101 * @iocbq: Pointer to driver iocb object.
1103 * This function is called with no lock held to release the iocb to
1107 lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1109 unsigned long iflags;
1112 * Clean all volatile data fields, preserve iotag and node struct.
1114 spin_lock_irqsave(&phba->hbalock, iflags);
1115 __lpfc_sli_release_iocbq(phba, iocbq);
1116 spin_unlock_irqrestore(&phba->hbalock, iflags);
1120 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
1121 * @phba: Pointer to HBA context object.
1122 * @iocblist: List of IOCBs.
1123 * @ulpstatus: ULP status in IOCB command field.
1124 * @ulpWord4: ULP word-4 in IOCB command field.
1126 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
1127 * on the list by invoking the complete callback function associated with the
1128 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
1132 lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
1133 uint32_t ulpstatus, uint32_t ulpWord4)
1135 struct lpfc_iocbq *piocb;
1137 while (!list_empty(iocblist)) {
1138 list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
1139 if (!piocb->iocb_cmpl)
1140 lpfc_sli_release_iocbq(phba, piocb);
1142 piocb->iocb.ulpStatus = ulpstatus;
1143 piocb->iocb.un.ulpWord[4] = ulpWord4;
1144 (piocb->iocb_cmpl) (phba, piocb, piocb);
1151 * lpfc_sli_iocb_cmd_type - Get the iocb type
1152 * @iocb_cmnd: iocb command code.
1154 * This function is called by ring event handler function to get the iocb type.
1155 * This function translates the iocb command to an iocb command type used to
1156 * decide the final disposition of each completed IOCB.
1157 * The function returns
1158 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
1159 * LPFC_SOL_IOCB if it is a solicited iocb completion
1160 * LPFC_ABORT_IOCB if it is an abort iocb
1161 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
1163 * The caller is not required to hold any lock.
1165 static lpfc_iocb_type
1166 lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
1168 lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
1170 if (iocb_cmnd > CMD_MAX_IOCB_CMD)
1173 switch (iocb_cmnd) {
1174 case CMD_XMIT_SEQUENCE_CR:
1175 case CMD_XMIT_SEQUENCE_CX:
1176 case CMD_XMIT_BCAST_CN:
1177 case CMD_XMIT_BCAST_CX:
1178 case CMD_ELS_REQUEST_CR:
1179 case CMD_ELS_REQUEST_CX:
1180 case CMD_CREATE_XRI_CR:
1181 case CMD_CREATE_XRI_CX:
1182 case CMD_GET_RPI_CN:
1183 case CMD_XMIT_ELS_RSP_CX:
1184 case CMD_GET_RPI_CR:
1185 case CMD_FCP_IWRITE_CR:
1186 case CMD_FCP_IWRITE_CX:
1187 case CMD_FCP_IREAD_CR:
1188 case CMD_FCP_IREAD_CX:
1189 case CMD_FCP_ICMND_CR:
1190 case CMD_FCP_ICMND_CX:
1191 case CMD_FCP_TSEND_CX:
1192 case CMD_FCP_TRSP_CX:
1193 case CMD_FCP_TRECEIVE_CX:
1194 case CMD_FCP_AUTO_TRSP_CX:
1195 case CMD_ADAPTER_MSG:
1196 case CMD_ADAPTER_DUMP:
1197 case CMD_XMIT_SEQUENCE64_CR:
1198 case CMD_XMIT_SEQUENCE64_CX:
1199 case CMD_XMIT_BCAST64_CN:
1200 case CMD_XMIT_BCAST64_CX:
1201 case CMD_ELS_REQUEST64_CR:
1202 case CMD_ELS_REQUEST64_CX:
1203 case CMD_FCP_IWRITE64_CR:
1204 case CMD_FCP_IWRITE64_CX:
1205 case CMD_FCP_IREAD64_CR:
1206 case CMD_FCP_IREAD64_CX:
1207 case CMD_FCP_ICMND64_CR:
1208 case CMD_FCP_ICMND64_CX:
1209 case CMD_FCP_TSEND64_CX:
1210 case CMD_FCP_TRSP64_CX:
1211 case CMD_FCP_TRECEIVE64_CX:
1212 case CMD_GEN_REQUEST64_CR:
1213 case CMD_GEN_REQUEST64_CX:
1214 case CMD_XMIT_ELS_RSP64_CX:
1215 case DSSCMD_IWRITE64_CR:
1216 case DSSCMD_IWRITE64_CX:
1217 case DSSCMD_IREAD64_CR:
1218 case DSSCMD_IREAD64_CX:
1219 type = LPFC_SOL_IOCB;
1221 case CMD_ABORT_XRI_CN:
1222 case CMD_ABORT_XRI_CX:
1223 case CMD_CLOSE_XRI_CN:
1224 case CMD_CLOSE_XRI_CX:
1225 case CMD_XRI_ABORTED_CX:
1226 case CMD_ABORT_MXRI64_CN:
1227 case CMD_XMIT_BLS_RSP64_CX:
1228 type = LPFC_ABORT_IOCB;
1230 case CMD_RCV_SEQUENCE_CX:
1231 case CMD_RCV_ELS_REQ_CX:
1232 case CMD_RCV_SEQUENCE64_CX:
1233 case CMD_RCV_ELS_REQ64_CX:
1234 case CMD_ASYNC_STATUS:
1235 case CMD_IOCB_RCV_SEQ64_CX:
1236 case CMD_IOCB_RCV_ELS64_CX:
1237 case CMD_IOCB_RCV_CONT64_CX:
1238 case CMD_IOCB_RET_XRI64_CX:
1239 type = LPFC_UNSOL_IOCB;
1241 case CMD_IOCB_XMIT_MSEQ64_CR:
1242 case CMD_IOCB_XMIT_MSEQ64_CX:
1243 case CMD_IOCB_RCV_SEQ_LIST64_CX:
1244 case CMD_IOCB_RCV_ELS_LIST64_CX:
1245 case CMD_IOCB_CLOSE_EXTENDED_CN:
1246 case CMD_IOCB_ABORT_EXTENDED_CN:
1247 case CMD_IOCB_RET_HBQE64_CN:
1248 case CMD_IOCB_FCP_IBIDIR64_CR:
1249 case CMD_IOCB_FCP_IBIDIR64_CX:
1250 case CMD_IOCB_FCP_ITASKMGT64_CX:
1251 case CMD_IOCB_LOGENTRY_CN:
1252 case CMD_IOCB_LOGENTRY_ASYNC_CN:
1253 printk("%s - Unhandled SLI-3 Command x%x\n",
1254 __func__, iocb_cmnd);
1255 type = LPFC_UNKNOWN_IOCB;
1258 type = LPFC_UNKNOWN_IOCB;
1266 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
1267 * @phba: Pointer to HBA context object.
1269 * This function is called from SLI initialization code
1270 * to configure every ring of the HBA's SLI interface. The
1271 * caller is not required to hold any lock. This function issues
1272 * a config_ring mailbox command for each ring.
1273 * This function returns zero if successful else returns a negative
1277 lpfc_sli_ring_map(struct lpfc_hba *phba)
1279 struct lpfc_sli *psli = &phba->sli;
1284 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1288 phba->link_state = LPFC_INIT_MBX_CMDS;
1289 for (i = 0; i < psli->num_rings; i++) {
1290 lpfc_config_ring(phba, i, pmb);
1291 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
1292 if (rc != MBX_SUCCESS) {
1293 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1294 "0446 Adapter failed to init (%d), "
1295 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
1297 rc, pmbox->mbxCommand,
1298 pmbox->mbxStatus, i);
1299 phba->link_state = LPFC_HBA_ERROR;
1304 mempool_free(pmb, phba->mbox_mem_pool);
1309 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
1310 * @phba: Pointer to HBA context object.
1311 * @pring: Pointer to driver SLI ring object.
1312 * @piocb: Pointer to the driver iocb object.
1314 * This function is called with hbalock held. The function adds the
1315 * new iocb to txcmplq of the given ring. This function always returns
1316 * 0. If this function is called for ELS ring, this function checks if
1317 * there is a vport associated with the ELS command. This function also
1318 * starts els_tmofunc timer if this is an ELS command.
1321 lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1322 struct lpfc_iocbq *piocb)
1324 lockdep_assert_held(&phba->hbalock);
1326 list_add_tail(&piocb->list, &pring->txcmplq);
1327 piocb->iocb_flag |= LPFC_IO_ON_TXCMPLQ;
1329 if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
1330 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
1331 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN) &&
1332 (!(piocb->vport->load_flag & FC_UNLOADING))) {
1336 mod_timer(&piocb->vport->els_tmofunc,
1338 msecs_to_jiffies(1000 * (phba->fc_ratov << 1)));
1346 * lpfc_sli_ringtx_get - Get first element of the txq
1347 * @phba: Pointer to HBA context object.
1348 * @pring: Pointer to driver SLI ring object.
1350 * This function is called with hbalock held to get next
1351 * iocb in txq of the given ring. If there is any iocb in
1352 * the txq, the function returns first iocb in the list after
1353 * removing the iocb from the list, else it returns NULL.
1356 lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1358 struct lpfc_iocbq *cmd_iocb;
1360 lockdep_assert_held(&phba->hbalock);
1362 list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
1367 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
1368 * @phba: Pointer to HBA context object.
1369 * @pring: Pointer to driver SLI ring object.
1371 * This function is called with hbalock held and the caller must post the
1372 * iocb without releasing the lock. If the caller releases the lock,
1373 * iocb slot returned by the function is not guaranteed to be available.
1374 * The function returns pointer to the next available iocb slot if there
1375 * is available slot in the ring, else it returns NULL.
1376 * If the get index of the ring is ahead of the put index, the function
1377 * will post an error attention event to the worker thread to take the
1378 * HBA to offline state.
1381 lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1383 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
1384 uint32_t max_cmd_idx = pring->sli.sli3.numCiocb;
1386 lockdep_assert_held(&phba->hbalock);
1388 if ((pring->sli.sli3.next_cmdidx == pring->sli.sli3.cmdidx) &&
1389 (++pring->sli.sli3.next_cmdidx >= max_cmd_idx))
1390 pring->sli.sli3.next_cmdidx = 0;
1392 if (unlikely(pring->sli.sli3.local_getidx ==
1393 pring->sli.sli3.next_cmdidx)) {
1395 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
1397 if (unlikely(pring->sli.sli3.local_getidx >= max_cmd_idx)) {
1398 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1399 "0315 Ring %d issue: portCmdGet %d "
1400 "is bigger than cmd ring %d\n",
1402 pring->sli.sli3.local_getidx,
1405 phba->link_state = LPFC_HBA_ERROR;
1407 * All error attention handlers are posted to
1410 phba->work_ha |= HA_ERATT;
1411 phba->work_hs = HS_FFER3;
1413 lpfc_worker_wake_up(phba);
1418 if (pring->sli.sli3.local_getidx == pring->sli.sli3.next_cmdidx)
1422 return lpfc_cmd_iocb(phba, pring);
1426 * lpfc_sli_next_iotag - Get an iotag for the iocb
1427 * @phba: Pointer to HBA context object.
1428 * @iocbq: Pointer to driver iocb object.
1430 * This function gets an iotag for the iocb. If there is no unused iotag and
1431 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
1432 * array and assigns a new iotag.
1433 * The function returns the allocated iotag if successful, else returns zero.
1434 * Zero is not a valid iotag.
1435 * The caller is not required to hold any lock.
1438 lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1440 struct lpfc_iocbq **new_arr;
1441 struct lpfc_iocbq **old_arr;
1443 struct lpfc_sli *psli = &phba->sli;
1446 spin_lock_irq(&phba->hbalock);
1447 iotag = psli->last_iotag;
1448 if(++iotag < psli->iocbq_lookup_len) {
1449 psli->last_iotag = iotag;
1450 psli->iocbq_lookup[iotag] = iocbq;
1451 spin_unlock_irq(&phba->hbalock);
1452 iocbq->iotag = iotag;
1454 } else if (psli->iocbq_lookup_len < (0xffff
1455 - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
1456 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
1457 spin_unlock_irq(&phba->hbalock);
1458 new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *),
1461 spin_lock_irq(&phba->hbalock);
1462 old_arr = psli->iocbq_lookup;
1463 if (new_len <= psli->iocbq_lookup_len) {
1464 /* highly unprobable case */
1466 iotag = psli->last_iotag;
1467 if(++iotag < psli->iocbq_lookup_len) {
1468 psli->last_iotag = iotag;
1469 psli->iocbq_lookup[iotag] = iocbq;
1470 spin_unlock_irq(&phba->hbalock);
1471 iocbq->iotag = iotag;
1474 spin_unlock_irq(&phba->hbalock);
1477 if (psli->iocbq_lookup)
1478 memcpy(new_arr, old_arr,
1479 ((psli->last_iotag + 1) *
1480 sizeof (struct lpfc_iocbq *)));
1481 psli->iocbq_lookup = new_arr;
1482 psli->iocbq_lookup_len = new_len;
1483 psli->last_iotag = iotag;
1484 psli->iocbq_lookup[iotag] = iocbq;
1485 spin_unlock_irq(&phba->hbalock);
1486 iocbq->iotag = iotag;
1491 spin_unlock_irq(&phba->hbalock);
1493 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
1494 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1501 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
1502 * @phba: Pointer to HBA context object.
1503 * @pring: Pointer to driver SLI ring object.
1504 * @iocb: Pointer to iocb slot in the ring.
1505 * @nextiocb: Pointer to driver iocb object which need to be
1506 * posted to firmware.
1508 * This function is called with hbalock held to post a new iocb to
1509 * the firmware. This function copies the new iocb to ring iocb slot and
1510 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1511 * a completion call back for this iocb else the function will free the
1515 lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1516 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
1518 lockdep_assert_held(&phba->hbalock);
1522 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
1525 if (pring->ringno == LPFC_ELS_RING) {
1526 lpfc_debugfs_slow_ring_trc(phba,
1527 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1528 *(((uint32_t *) &nextiocb->iocb) + 4),
1529 *(((uint32_t *) &nextiocb->iocb) + 6),
1530 *(((uint32_t *) &nextiocb->iocb) + 7));
1534 * Issue iocb command to adapter
1536 lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
1538 pring->stats.iocb_cmd++;
1541 * If there is no completion routine to call, we can release the
1542 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1543 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1545 if (nextiocb->iocb_cmpl)
1546 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
1548 __lpfc_sli_release_iocbq(phba, nextiocb);
1551 * Let the HBA know what IOCB slot will be the next one the
1552 * driver will put a command into.
1554 pring->sli.sli3.cmdidx = pring->sli.sli3.next_cmdidx;
1555 writel(pring->sli.sli3.cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
1559 * lpfc_sli_update_full_ring - Update the chip attention register
1560 * @phba: Pointer to HBA context object.
1561 * @pring: Pointer to driver SLI ring object.
1563 * The caller is not required to hold any lock for calling this function.
1564 * This function updates the chip attention bits for the ring to inform firmware
1565 * that there are pending work to be done for this ring and requests an
1566 * interrupt when there is space available in the ring. This function is
1567 * called when the driver is unable to post more iocbs to the ring due
1568 * to unavailability of space in the ring.
1571 lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1573 int ringno = pring->ringno;
1575 pring->flag |= LPFC_CALL_RING_AVAILABLE;
1580 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1581 * The HBA will tell us when an IOCB entry is available.
1583 writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
1584 readl(phba->CAregaddr); /* flush */
1586 pring->stats.iocb_cmd_full++;
1590 * lpfc_sli_update_ring - Update chip attention register
1591 * @phba: Pointer to HBA context object.
1592 * @pring: Pointer to driver SLI ring object.
1594 * This function updates the chip attention register bit for the
1595 * given ring to inform HBA that there is more work to be done
1596 * in this ring. The caller is not required to hold any lock.
1599 lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1601 int ringno = pring->ringno;
1604 * Tell the HBA that there is work to do in this ring.
1606 if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
1608 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
1609 readl(phba->CAregaddr); /* flush */
1614 * lpfc_sli_resume_iocb - Process iocbs in the txq
1615 * @phba: Pointer to HBA context object.
1616 * @pring: Pointer to driver SLI ring object.
1618 * This function is called with hbalock held to post pending iocbs
1619 * in the txq to the firmware. This function is called when driver
1620 * detects space available in the ring.
1623 lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1626 struct lpfc_iocbq *nextiocb;
1628 lockdep_assert_held(&phba->hbalock);
1632 * (a) there is anything on the txq to send
1634 * (c) link attention events can be processed (fcp ring only)
1635 * (d) IOCB processing is not blocked by the outstanding mbox command.
1638 if (lpfc_is_link_up(phba) &&
1639 (!list_empty(&pring->txq)) &&
1640 (pring->ringno != phba->sli.fcp_ring ||
1641 phba->sli.sli_flag & LPFC_PROCESS_LA)) {
1643 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
1644 (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
1645 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
1648 lpfc_sli_update_ring(phba, pring);
1650 lpfc_sli_update_full_ring(phba, pring);
1657 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
1658 * @phba: Pointer to HBA context object.
1659 * @hbqno: HBQ number.
1661 * This function is called with hbalock held to get the next
1662 * available slot for the given HBQ. If there is free slot
1663 * available for the HBQ it will return pointer to the next available
1664 * HBQ entry else it will return NULL.
1666 static struct lpfc_hbq_entry *
1667 lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
1669 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1671 lockdep_assert_held(&phba->hbalock);
1673 if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
1674 ++hbqp->next_hbqPutIdx >= hbqp->entry_count)
1675 hbqp->next_hbqPutIdx = 0;
1677 if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
1678 uint32_t raw_index = phba->hbq_get[hbqno];
1679 uint32_t getidx = le32_to_cpu(raw_index);
1681 hbqp->local_hbqGetIdx = getidx;
1683 if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
1684 lpfc_printf_log(phba, KERN_ERR,
1685 LOG_SLI | LOG_VPORT,
1686 "1802 HBQ %d: local_hbqGetIdx "
1687 "%u is > than hbqp->entry_count %u\n",
1688 hbqno, hbqp->local_hbqGetIdx,
1691 phba->link_state = LPFC_HBA_ERROR;
1695 if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
1699 return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
1704 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
1705 * @phba: Pointer to HBA context object.
1707 * This function is called with no lock held to free all the
1708 * hbq buffers while uninitializing the SLI interface. It also
1709 * frees the HBQ buffers returned by the firmware but not yet
1710 * processed by the upper layers.
1713 lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
1715 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
1716 struct hbq_dmabuf *hbq_buf;
1717 unsigned long flags;
1721 hbq_count = lpfc_sli_hbq_count();
1722 /* Return all memory used by all HBQs */
1723 spin_lock_irqsave(&phba->hbalock, flags);
1724 for (i = 0; i < hbq_count; ++i) {
1725 list_for_each_entry_safe(dmabuf, next_dmabuf,
1726 &phba->hbqs[i].hbq_buffer_list, list) {
1727 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1728 list_del(&hbq_buf->dbuf.list);
1729 (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
1731 phba->hbqs[i].buffer_count = 0;
1733 /* Return all HBQ buffer that are in-fly */
1734 list_for_each_entry_safe(dmabuf, next_dmabuf, &phba->rb_pend_list,
1736 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1737 list_del(&hbq_buf->dbuf.list);
1738 if (hbq_buf->tag == -1) {
1739 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1742 hbqno = hbq_buf->tag >> 16;
1743 if (hbqno >= LPFC_MAX_HBQS)
1744 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1747 (phba->hbqs[hbqno].hbq_free_buffer)(phba,
1752 /* Mark the HBQs not in use */
1753 phba->hbq_in_use = 0;
1754 spin_unlock_irqrestore(&phba->hbalock, flags);
1758 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
1759 * @phba: Pointer to HBA context object.
1760 * @hbqno: HBQ number.
1761 * @hbq_buf: Pointer to HBQ buffer.
1763 * This function is called with the hbalock held to post a
1764 * hbq buffer to the firmware. If the function finds an empty
1765 * slot in the HBQ, it will post the buffer. The function will return
1766 * pointer to the hbq entry if it successfully post the buffer
1767 * else it will return NULL.
1770 lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
1771 struct hbq_dmabuf *hbq_buf)
1773 lockdep_assert_held(&phba->hbalock);
1774 return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
1778 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
1779 * @phba: Pointer to HBA context object.
1780 * @hbqno: HBQ number.
1781 * @hbq_buf: Pointer to HBQ buffer.
1783 * This function is called with the hbalock held to post a hbq buffer to the
1784 * firmware. If the function finds an empty slot in the HBQ, it will post the
1785 * buffer and place it on the hbq_buffer_list. The function will return zero if
1786 * it successfully post the buffer else it will return an error.
1789 lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
1790 struct hbq_dmabuf *hbq_buf)
1792 struct lpfc_hbq_entry *hbqe;
1793 dma_addr_t physaddr = hbq_buf->dbuf.phys;
1795 lockdep_assert_held(&phba->hbalock);
1796 /* Get next HBQ entry slot to use */
1797 hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
1799 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1801 hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
1802 hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
1803 hbqe->bde.tus.f.bdeSize = hbq_buf->size;
1804 hbqe->bde.tus.f.bdeFlags = 0;
1805 hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
1806 hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
1808 hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
1809 writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
1811 readl(phba->hbq_put + hbqno);
1812 list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
1819 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
1820 * @phba: Pointer to HBA context object.
1821 * @hbqno: HBQ number.
1822 * @hbq_buf: Pointer to HBQ buffer.
1824 * This function is called with the hbalock held to post an RQE to the SLI4
1825 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
1826 * the hbq_buffer_list and return zero, otherwise it will return an error.
1829 lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
1830 struct hbq_dmabuf *hbq_buf)
1833 struct lpfc_rqe hrqe;
1834 struct lpfc_rqe drqe;
1836 lockdep_assert_held(&phba->hbalock);
1837 hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
1838 hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
1839 drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
1840 drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
1841 rc = lpfc_sli4_rq_put(phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
1846 list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
1850 /* HBQ for ELS and CT traffic. */
1851 static struct lpfc_hbq_init lpfc_els_hbq = {
1856 .ring_mask = (1 << LPFC_ELS_RING),
1862 /* HBQ for the extra ring if needed */
1863 static struct lpfc_hbq_init lpfc_extra_hbq = {
1868 .ring_mask = (1 << LPFC_EXTRA_RING),
1875 struct lpfc_hbq_init *lpfc_hbq_defs[] = {
1881 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
1882 * @phba: Pointer to HBA context object.
1883 * @hbqno: HBQ number.
1884 * @count: Number of HBQ buffers to be posted.
1886 * This function is called with no lock held to post more hbq buffers to the
1887 * given HBQ. The function returns the number of HBQ buffers successfully
1891 lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
1893 uint32_t i, posted = 0;
1894 unsigned long flags;
1895 struct hbq_dmabuf *hbq_buffer;
1896 LIST_HEAD(hbq_buf_list);
1897 if (!phba->hbqs[hbqno].hbq_alloc_buffer)
1900 if ((phba->hbqs[hbqno].buffer_count + count) >
1901 lpfc_hbq_defs[hbqno]->entry_count)
1902 count = lpfc_hbq_defs[hbqno]->entry_count -
1903 phba->hbqs[hbqno].buffer_count;
1906 /* Allocate HBQ entries */
1907 for (i = 0; i < count; i++) {
1908 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
1911 list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
1913 /* Check whether HBQ is still in use */
1914 spin_lock_irqsave(&phba->hbalock, flags);
1915 if (!phba->hbq_in_use)
1917 while (!list_empty(&hbq_buf_list)) {
1918 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1920 hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
1922 if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
1923 phba->hbqs[hbqno].buffer_count++;
1926 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1928 spin_unlock_irqrestore(&phba->hbalock, flags);
1931 spin_unlock_irqrestore(&phba->hbalock, flags);
1932 while (!list_empty(&hbq_buf_list)) {
1933 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1935 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1941 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
1942 * @phba: Pointer to HBA context object.
1945 * This function posts more buffers to the HBQ. This function
1946 * is called with no lock held. The function returns the number of HBQ entries
1947 * successfully allocated.
1950 lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
1952 if (phba->sli_rev == LPFC_SLI_REV4)
1955 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1956 lpfc_hbq_defs[qno]->add_count);
1960 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
1961 * @phba: Pointer to HBA context object.
1962 * @qno: HBQ queue number.
1964 * This function is called from SLI initialization code path with
1965 * no lock held to post initial HBQ buffers to firmware. The
1966 * function returns the number of HBQ entries successfully allocated.
1969 lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
1971 if (phba->sli_rev == LPFC_SLI_REV4)
1972 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1973 lpfc_hbq_defs[qno]->entry_count);
1975 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1976 lpfc_hbq_defs[qno]->init_count);
1980 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
1981 * @phba: Pointer to HBA context object.
1982 * @hbqno: HBQ number.
1984 * This function removes the first hbq buffer on an hbq list and returns a
1985 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
1987 static struct hbq_dmabuf *
1988 lpfc_sli_hbqbuf_get(struct list_head *rb_list)
1990 struct lpfc_dmabuf *d_buf;
1992 list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
1995 return container_of(d_buf, struct hbq_dmabuf, dbuf);
1999 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
2000 * @phba: Pointer to HBA context object.
2001 * @tag: Tag of the hbq buffer.
2003 * This function is called with hbalock held. This function searches
2004 * for the hbq buffer associated with the given tag in the hbq buffer
2005 * list. If it finds the hbq buffer, it returns the hbq_buffer other wise
2008 static struct hbq_dmabuf *
2009 lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
2011 struct lpfc_dmabuf *d_buf;
2012 struct hbq_dmabuf *hbq_buf;
2015 lockdep_assert_held(&phba->hbalock);
2018 if (hbqno >= LPFC_MAX_HBQS)
2021 spin_lock_irq(&phba->hbalock);
2022 list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
2023 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
2024 if (hbq_buf->tag == tag) {
2025 spin_unlock_irq(&phba->hbalock);
2029 spin_unlock_irq(&phba->hbalock);
2030 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT,
2031 "1803 Bad hbq tag. Data: x%x x%x\n",
2032 tag, phba->hbqs[tag >> 16].buffer_count);
2037 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
2038 * @phba: Pointer to HBA context object.
2039 * @hbq_buffer: Pointer to HBQ buffer.
2041 * This function is called with hbalock. This function gives back
2042 * the hbq buffer to firmware. If the HBQ does not have space to
2043 * post the buffer, it will free the buffer.
2046 lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
2051 hbqno = hbq_buffer->tag >> 16;
2052 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
2053 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
2058 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
2059 * @mbxCommand: mailbox command code.
2061 * This function is called by the mailbox event handler function to verify
2062 * that the completed mailbox command is a legitimate mailbox command. If the
2063 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
2064 * and the mailbox event handler will take the HBA offline.
2067 lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
2071 switch (mbxCommand) {
2075 case MBX_WRITE_VPARMS:
2076 case MBX_RUN_BIU_DIAG:
2079 case MBX_CONFIG_LINK:
2080 case MBX_CONFIG_RING:
2081 case MBX_RESET_RING:
2082 case MBX_READ_CONFIG:
2083 case MBX_READ_RCONFIG:
2084 case MBX_READ_SPARM:
2085 case MBX_READ_STATUS:
2089 case MBX_READ_LNK_STAT:
2091 case MBX_UNREG_LOGIN:
2093 case MBX_DUMP_MEMORY:
2094 case MBX_DUMP_CONTEXT:
2097 case MBX_UPDATE_CFG:
2099 case MBX_DEL_LD_ENTRY:
2100 case MBX_RUN_PROGRAM:
2102 case MBX_SET_VARIABLE:
2103 case MBX_UNREG_D_ID:
2104 case MBX_KILL_BOARD:
2105 case MBX_CONFIG_FARP:
2108 case MBX_RUN_BIU_DIAG64:
2109 case MBX_CONFIG_PORT:
2110 case MBX_READ_SPARM64:
2111 case MBX_READ_RPI64:
2112 case MBX_REG_LOGIN64:
2113 case MBX_READ_TOPOLOGY:
2116 case MBX_LOAD_EXP_ROM:
2117 case MBX_ASYNCEVT_ENABLE:
2121 case MBX_PORT_CAPABILITIES:
2122 case MBX_PORT_IOV_CONTROL:
2123 case MBX_SLI4_CONFIG:
2124 case MBX_SLI4_REQ_FTRS:
2126 case MBX_UNREG_FCFI:
2131 case MBX_RESUME_RPI:
2132 case MBX_READ_EVENT_LOG_STATUS:
2133 case MBX_READ_EVENT_LOG:
2134 case MBX_SECURITY_MGMT:
2136 case MBX_ACCESS_VDATA:
2147 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
2148 * @phba: Pointer to HBA context object.
2149 * @pmboxq: Pointer to mailbox command.
2151 * This is completion handler function for mailbox commands issued from
2152 * lpfc_sli_issue_mbox_wait function. This function is called by the
2153 * mailbox event handler function with no lock held. This function
2154 * will wake up thread waiting on the wait queue pointed by context1
2158 lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
2160 wait_queue_head_t *pdone_q;
2161 unsigned long drvr_flag;
2164 * If pdone_q is empty, the driver thread gave up waiting and
2165 * continued running.
2167 pmboxq->mbox_flag |= LPFC_MBX_WAKE;
2168 spin_lock_irqsave(&phba->hbalock, drvr_flag);
2169 pdone_q = (wait_queue_head_t *) pmboxq->context1;
2171 wake_up_interruptible(pdone_q);
2172 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
2178 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
2179 * @phba: Pointer to HBA context object.
2180 * @pmb: Pointer to mailbox object.
2182 * This function is the default mailbox completion handler. It
2183 * frees the memory resources associated with the completed mailbox
2184 * command. If the completed command is a REG_LOGIN mailbox command,
2185 * this function will issue a UREG_LOGIN to re-claim the RPI.
2188 lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2190 struct lpfc_vport *vport = pmb->vport;
2191 struct lpfc_dmabuf *mp;
2192 struct lpfc_nodelist *ndlp;
2193 struct Scsi_Host *shost;
2197 mp = (struct lpfc_dmabuf *) (pmb->context1);
2200 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2205 * If a REG_LOGIN succeeded after node is destroyed or node
2206 * is in re-discovery driver need to cleanup the RPI.
2208 if (!(phba->pport->load_flag & FC_UNLOADING) &&
2209 pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
2210 !pmb->u.mb.mbxStatus) {
2211 rpi = pmb->u.mb.un.varWords[0];
2212 vpi = pmb->u.mb.un.varRegLogin.vpi;
2213 lpfc_unreg_login(phba, vpi, rpi, pmb);
2214 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2215 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2216 if (rc != MBX_NOT_FINISHED)
2220 if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) &&
2221 !(phba->pport->load_flag & FC_UNLOADING) &&
2222 !pmb->u.mb.mbxStatus) {
2223 shost = lpfc_shost_from_vport(vport);
2224 spin_lock_irq(shost->host_lock);
2225 vport->vpi_state |= LPFC_VPI_REGISTERED;
2226 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
2227 spin_unlock_irq(shost->host_lock);
2230 if (pmb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
2231 ndlp = (struct lpfc_nodelist *)pmb->context2;
2233 pmb->context2 = NULL;
2236 /* Check security permission status on INIT_LINK mailbox command */
2237 if ((pmb->u.mb.mbxCommand == MBX_INIT_LINK) &&
2238 (pmb->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
2239 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2240 "2860 SLI authentication is required "
2241 "for INIT_LINK but has not done yet\n");
2243 if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
2244 lpfc_sli4_mbox_cmd_free(phba, pmb);
2246 mempool_free(pmb, phba->mbox_mem_pool);
2249 * lpfc_sli4_unreg_rpi_cmpl_clr - mailbox completion handler
2250 * @phba: Pointer to HBA context object.
2251 * @pmb: Pointer to mailbox object.
2253 * This function is the unreg rpi mailbox completion handler. It
2254 * frees the memory resources associated with the completed mailbox
2255 * command. An additional refrenece is put on the ndlp to prevent
2256 * lpfc_nlp_release from freeing the rpi bit in the bitmask before
2257 * the unreg mailbox command completes, this routine puts the
2262 lpfc_sli4_unreg_rpi_cmpl_clr(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2264 struct lpfc_vport *vport = pmb->vport;
2265 struct lpfc_nodelist *ndlp;
2267 ndlp = pmb->context1;
2268 if (pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) {
2269 if (phba->sli_rev == LPFC_SLI_REV4 &&
2270 (bf_get(lpfc_sli_intf_if_type,
2271 &phba->sli4_hba.sli_intf) ==
2272 LPFC_SLI_INTF_IF_TYPE_2)) {
2274 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
2275 "0010 UNREG_LOGIN vpi:%x "
2276 "rpi:%x DID:%x map:%x %p\n",
2277 vport->vpi, ndlp->nlp_rpi,
2279 ndlp->nlp_usg_map, ndlp);
2280 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
2286 mempool_free(pmb, phba->mbox_mem_pool);
2290 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
2291 * @phba: Pointer to HBA context object.
2293 * This function is called with no lock held. This function processes all
2294 * the completed mailbox commands and gives it to upper layers. The interrupt
2295 * service routine processes mailbox completion interrupt and adds completed
2296 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
2297 * Worker thread call lpfc_sli_handle_mb_event, which will return the
2298 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
2299 * function returns the mailbox commands to the upper layer by calling the
2300 * completion handler function of each mailbox.
2303 lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
2310 phba->sli.slistat.mbox_event++;
2312 /* Get all completed mailboxe buffers into the cmplq */
2313 spin_lock_irq(&phba->hbalock);
2314 list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
2315 spin_unlock_irq(&phba->hbalock);
2317 /* Get a Mailbox buffer to setup mailbox commands for callback */
2319 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
2325 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
2327 lpfc_debugfs_disc_trc(pmb->vport,
2328 LPFC_DISC_TRC_MBOX_VPORT,
2329 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
2330 (uint32_t)pmbox->mbxCommand,
2331 pmbox->un.varWords[0],
2332 pmbox->un.varWords[1]);
2335 lpfc_debugfs_disc_trc(phba->pport,
2337 "MBOX cmpl: cmd:x%x mb:x%x x%x",
2338 (uint32_t)pmbox->mbxCommand,
2339 pmbox->un.varWords[0],
2340 pmbox->un.varWords[1]);
2345 * It is a fatal error if unknown mbox command completion.
2347 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
2349 /* Unknown mailbox command compl */
2350 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2351 "(%d):0323 Unknown Mailbox command "
2352 "x%x (x%x/x%x) Cmpl\n",
2353 pmb->vport ? pmb->vport->vpi : 0,
2355 lpfc_sli_config_mbox_subsys_get(phba,
2357 lpfc_sli_config_mbox_opcode_get(phba,
2359 phba->link_state = LPFC_HBA_ERROR;
2360 phba->work_hs = HS_FFER3;
2361 lpfc_handle_eratt(phba);
2365 if (pmbox->mbxStatus) {
2366 phba->sli.slistat.mbox_stat_err++;
2367 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
2368 /* Mbox cmd cmpl error - RETRYing */
2369 lpfc_printf_log(phba, KERN_INFO,
2371 "(%d):0305 Mbox cmd cmpl "
2372 "error - RETRYing Data: x%x "
2373 "(x%x/x%x) x%x x%x x%x\n",
2374 pmb->vport ? pmb->vport->vpi : 0,
2376 lpfc_sli_config_mbox_subsys_get(phba,
2378 lpfc_sli_config_mbox_opcode_get(phba,
2381 pmbox->un.varWords[0],
2382 pmb->vport->port_state);
2383 pmbox->mbxStatus = 0;
2384 pmbox->mbxOwner = OWN_HOST;
2385 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2386 if (rc != MBX_NOT_FINISHED)
2391 /* Mailbox cmd <cmd> Cmpl <cmpl> */
2392 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
2393 "(%d):0307 Mailbox cmd x%x (x%x/x%x) Cmpl x%p "
2394 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
2396 pmb->vport ? pmb->vport->vpi : 0,
2398 lpfc_sli_config_mbox_subsys_get(phba, pmb),
2399 lpfc_sli_config_mbox_opcode_get(phba, pmb),
2401 *((uint32_t *) pmbox),
2402 pmbox->un.varWords[0],
2403 pmbox->un.varWords[1],
2404 pmbox->un.varWords[2],
2405 pmbox->un.varWords[3],
2406 pmbox->un.varWords[4],
2407 pmbox->un.varWords[5],
2408 pmbox->un.varWords[6],
2409 pmbox->un.varWords[7],
2410 pmbox->un.varWords[8],
2411 pmbox->un.varWords[9],
2412 pmbox->un.varWords[10]);
2415 pmb->mbox_cmpl(phba,pmb);
2421 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
2422 * @phba: Pointer to HBA context object.
2423 * @pring: Pointer to driver SLI ring object.
2426 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
2427 * is set in the tag the buffer is posted for a particular exchange,
2428 * the function will return the buffer without replacing the buffer.
2429 * If the buffer is for unsolicited ELS or CT traffic, this function
2430 * returns the buffer and also posts another buffer to the firmware.
2432 static struct lpfc_dmabuf *
2433 lpfc_sli_get_buff(struct lpfc_hba *phba,
2434 struct lpfc_sli_ring *pring,
2437 struct hbq_dmabuf *hbq_entry;
2439 if (tag & QUE_BUFTAG_BIT)
2440 return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
2441 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
2444 return &hbq_entry->dbuf;
2448 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
2449 * @phba: Pointer to HBA context object.
2450 * @pring: Pointer to driver SLI ring object.
2451 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
2452 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
2453 * @fch_type: the type for the first frame of the sequence.
2455 * This function is called with no lock held. This function uses the r_ctl and
2456 * type of the received sequence to find the correct callback function to call
2457 * to process the sequence.
2460 lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2461 struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
2466 /* unSolicited Responses */
2467 if (pring->prt[0].profile) {
2468 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
2469 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
2473 /* We must search, based on rctl / type
2474 for the right routine */
2475 for (i = 0; i < pring->num_mask; i++) {
2476 if ((pring->prt[i].rctl == fch_r_ctl) &&
2477 (pring->prt[i].type == fch_type)) {
2478 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
2479 (pring->prt[i].lpfc_sli_rcv_unsol_event)
2480 (phba, pring, saveq);
2488 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
2489 * @phba: Pointer to HBA context object.
2490 * @pring: Pointer to driver SLI ring object.
2491 * @saveq: Pointer to the unsolicited iocb.
2493 * This function is called with no lock held by the ring event handler
2494 * when there is an unsolicited iocb posted to the response ring by the
2495 * firmware. This function gets the buffer associated with the iocbs
2496 * and calls the event handler for the ring. This function handles both
2497 * qring buffers and hbq buffers.
2498 * When the function returns 1 the caller can free the iocb object otherwise
2499 * upper layer functions will free the iocb objects.
2502 lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2503 struct lpfc_iocbq *saveq)
2507 uint32_t Rctl, Type;
2508 struct lpfc_iocbq *iocbq;
2509 struct lpfc_dmabuf *dmzbuf;
2511 irsp = &(saveq->iocb);
2513 if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
2514 if (pring->lpfc_sli_rcv_async_status)
2515 pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
2517 lpfc_printf_log(phba,
2520 "0316 Ring %d handler: unexpected "
2521 "ASYNC_STATUS iocb received evt_code "
2524 irsp->un.asyncstat.evt_code);
2528 if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
2529 (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
2530 if (irsp->ulpBdeCount > 0) {
2531 dmzbuf = lpfc_sli_get_buff(phba, pring,
2532 irsp->un.ulpWord[3]);
2533 lpfc_in_buf_free(phba, dmzbuf);
2536 if (irsp->ulpBdeCount > 1) {
2537 dmzbuf = lpfc_sli_get_buff(phba, pring,
2538 irsp->unsli3.sli3Words[3]);
2539 lpfc_in_buf_free(phba, dmzbuf);
2542 if (irsp->ulpBdeCount > 2) {
2543 dmzbuf = lpfc_sli_get_buff(phba, pring,
2544 irsp->unsli3.sli3Words[7]);
2545 lpfc_in_buf_free(phba, dmzbuf);
2551 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
2552 if (irsp->ulpBdeCount != 0) {
2553 saveq->context2 = lpfc_sli_get_buff(phba, pring,
2554 irsp->un.ulpWord[3]);
2555 if (!saveq->context2)
2556 lpfc_printf_log(phba,
2559 "0341 Ring %d Cannot find buffer for "
2560 "an unsolicited iocb. tag 0x%x\n",
2562 irsp->un.ulpWord[3]);
2564 if (irsp->ulpBdeCount == 2) {
2565 saveq->context3 = lpfc_sli_get_buff(phba, pring,
2566 irsp->unsli3.sli3Words[7]);
2567 if (!saveq->context3)
2568 lpfc_printf_log(phba,
2571 "0342 Ring %d Cannot find buffer for an"
2572 " unsolicited iocb. tag 0x%x\n",
2574 irsp->unsli3.sli3Words[7]);
2576 list_for_each_entry(iocbq, &saveq->list, list) {
2577 irsp = &(iocbq->iocb);
2578 if (irsp->ulpBdeCount != 0) {
2579 iocbq->context2 = lpfc_sli_get_buff(phba, pring,
2580 irsp->un.ulpWord[3]);
2581 if (!iocbq->context2)
2582 lpfc_printf_log(phba,
2585 "0343 Ring %d Cannot find "
2586 "buffer for an unsolicited iocb"
2587 ". tag 0x%x\n", pring->ringno,
2588 irsp->un.ulpWord[3]);
2590 if (irsp->ulpBdeCount == 2) {
2591 iocbq->context3 = lpfc_sli_get_buff(phba, pring,
2592 irsp->unsli3.sli3Words[7]);
2593 if (!iocbq->context3)
2594 lpfc_printf_log(phba,
2597 "0344 Ring %d Cannot find "
2598 "buffer for an unsolicited "
2601 irsp->unsli3.sli3Words[7]);
2605 if (irsp->ulpBdeCount != 0 &&
2606 (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
2607 irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
2610 /* search continue save q for same XRI */
2611 list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
2612 if (iocbq->iocb.unsli3.rcvsli3.ox_id ==
2613 saveq->iocb.unsli3.rcvsli3.ox_id) {
2614 list_add_tail(&saveq->list, &iocbq->list);
2620 list_add_tail(&saveq->clist,
2621 &pring->iocb_continue_saveq);
2622 if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
2623 list_del_init(&iocbq->clist);
2625 irsp = &(saveq->iocb);
2629 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
2630 (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
2631 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
2632 Rctl = FC_RCTL_ELS_REQ;
2635 w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
2636 Rctl = w5p->hcsw.Rctl;
2637 Type = w5p->hcsw.Type;
2639 /* Firmware Workaround */
2640 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
2641 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
2642 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
2643 Rctl = FC_RCTL_ELS_REQ;
2645 w5p->hcsw.Rctl = Rctl;
2646 w5p->hcsw.Type = Type;
2650 if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
2651 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2652 "0313 Ring %d handler: unexpected Rctl x%x "
2653 "Type x%x received\n",
2654 pring->ringno, Rctl, Type);
2660 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
2661 * @phba: Pointer to HBA context object.
2662 * @pring: Pointer to driver SLI ring object.
2663 * @prspiocb: Pointer to response iocb object.
2665 * This function looks up the iocb_lookup table to get the command iocb
2666 * corresponding to the given response iocb using the iotag of the
2667 * response iocb. This function is called with the hbalock held.
2668 * This function returns the command iocb object if it finds the command
2669 * iocb else returns NULL.
2671 static struct lpfc_iocbq *
2672 lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
2673 struct lpfc_sli_ring *pring,
2674 struct lpfc_iocbq *prspiocb)
2676 struct lpfc_iocbq *cmd_iocb = NULL;
2678 lockdep_assert_held(&phba->hbalock);
2680 iotag = prspiocb->iocb.ulpIoTag;
2682 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2683 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2684 list_del_init(&cmd_iocb->list);
2685 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
2686 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
2691 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2692 "0317 iotag x%x is out off "
2693 "range: max iotag x%x wd0 x%x\n",
2694 iotag, phba->sli.last_iotag,
2695 *(((uint32_t *) &prspiocb->iocb) + 7));
2700 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2701 * @phba: Pointer to HBA context object.
2702 * @pring: Pointer to driver SLI ring object.
2705 * This function looks up the iocb_lookup table to get the command iocb
2706 * corresponding to the given iotag. This function is called with the
2708 * This function returns the command iocb object if it finds the command
2709 * iocb else returns NULL.
2711 static struct lpfc_iocbq *
2712 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
2713 struct lpfc_sli_ring *pring, uint16_t iotag)
2715 struct lpfc_iocbq *cmd_iocb;
2717 lockdep_assert_held(&phba->hbalock);
2718 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2719 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2720 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
2721 /* remove from txcmpl queue list */
2722 list_del_init(&cmd_iocb->list);
2723 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
2727 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2728 "0372 iotag x%x is out off range: max iotag (x%x)\n",
2729 iotag, phba->sli.last_iotag);
2734 * lpfc_sli_process_sol_iocb - process solicited iocb completion
2735 * @phba: Pointer to HBA context object.
2736 * @pring: Pointer to driver SLI ring object.
2737 * @saveq: Pointer to the response iocb to be processed.
2739 * This function is called by the ring event handler for non-fcp
2740 * rings when there is a new response iocb in the response ring.
2741 * The caller is not required to hold any locks. This function
2742 * gets the command iocb associated with the response iocb and
2743 * calls the completion handler for the command iocb. If there
2744 * is no completion handler, the function will free the resources
2745 * associated with command iocb. If the response iocb is for
2746 * an already aborted command iocb, the status of the completion
2747 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
2748 * This function always returns 1.
2751 lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2752 struct lpfc_iocbq *saveq)
2754 struct lpfc_iocbq *cmdiocbp;
2756 unsigned long iflag;
2758 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
2759 spin_lock_irqsave(&phba->hbalock, iflag);
2760 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
2761 spin_unlock_irqrestore(&phba->hbalock, iflag);
2764 if (cmdiocbp->iocb_cmpl) {
2766 * If an ELS command failed send an event to mgmt
2769 if (saveq->iocb.ulpStatus &&
2770 (pring->ringno == LPFC_ELS_RING) &&
2771 (cmdiocbp->iocb.ulpCommand ==
2772 CMD_ELS_REQUEST64_CR))
2773 lpfc_send_els_failure_event(phba,
2777 * Post all ELS completions to the worker thread.
2778 * All other are passed to the completion callback.
2780 if (pring->ringno == LPFC_ELS_RING) {
2781 if ((phba->sli_rev < LPFC_SLI_REV4) &&
2782 (cmdiocbp->iocb_flag &
2783 LPFC_DRIVER_ABORTED)) {
2784 spin_lock_irqsave(&phba->hbalock,
2786 cmdiocbp->iocb_flag &=
2787 ~LPFC_DRIVER_ABORTED;
2788 spin_unlock_irqrestore(&phba->hbalock,
2790 saveq->iocb.ulpStatus =
2791 IOSTAT_LOCAL_REJECT;
2792 saveq->iocb.un.ulpWord[4] =
2795 /* Firmware could still be in progress
2796 * of DMAing payload, so don't free data
2797 * buffer till after a hbeat.
2799 spin_lock_irqsave(&phba->hbalock,
2801 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
2802 spin_unlock_irqrestore(&phba->hbalock,
2805 if (phba->sli_rev == LPFC_SLI_REV4) {
2806 if (saveq->iocb_flag &
2807 LPFC_EXCHANGE_BUSY) {
2808 /* Set cmdiocb flag for the
2809 * exchange busy so sgl (xri)
2810 * will not be released until
2811 * the abort xri is received
2815 &phba->hbalock, iflag);
2816 cmdiocbp->iocb_flag |=
2818 spin_unlock_irqrestore(
2819 &phba->hbalock, iflag);
2821 if (cmdiocbp->iocb_flag &
2822 LPFC_DRIVER_ABORTED) {
2824 * Clear LPFC_DRIVER_ABORTED
2825 * bit in case it was driver
2829 &phba->hbalock, iflag);
2830 cmdiocbp->iocb_flag &=
2831 ~LPFC_DRIVER_ABORTED;
2832 spin_unlock_irqrestore(
2833 &phba->hbalock, iflag);
2834 cmdiocbp->iocb.ulpStatus =
2835 IOSTAT_LOCAL_REJECT;
2836 cmdiocbp->iocb.un.ulpWord[4] =
2837 IOERR_ABORT_REQUESTED;
2839 * For SLI4, irsiocb contains
2840 * NO_XRI in sli_xritag, it
2841 * shall not affect releasing
2842 * sgl (xri) process.
2844 saveq->iocb.ulpStatus =
2845 IOSTAT_LOCAL_REJECT;
2846 saveq->iocb.un.ulpWord[4] =
2849 &phba->hbalock, iflag);
2851 LPFC_DELAY_MEM_FREE;
2852 spin_unlock_irqrestore(
2853 &phba->hbalock, iflag);
2857 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
2859 lpfc_sli_release_iocbq(phba, cmdiocbp);
2862 * Unknown initiating command based on the response iotag.
2863 * This could be the case on the ELS ring because of
2866 if (pring->ringno != LPFC_ELS_RING) {
2868 * Ring <ringno> handler: unexpected completion IoTag
2871 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2872 "0322 Ring %d handler: "
2873 "unexpected completion IoTag x%x "
2874 "Data: x%x x%x x%x x%x\n",
2876 saveq->iocb.ulpIoTag,
2877 saveq->iocb.ulpStatus,
2878 saveq->iocb.un.ulpWord[4],
2879 saveq->iocb.ulpCommand,
2880 saveq->iocb.ulpContext);
2888 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
2889 * @phba: Pointer to HBA context object.
2890 * @pring: Pointer to driver SLI ring object.
2892 * This function is called from the iocb ring event handlers when
2893 * put pointer is ahead of the get pointer for a ring. This function signal
2894 * an error attention condition to the worker thread and the worker
2895 * thread will transition the HBA to offline state.
2898 lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
2900 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2902 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
2903 * rsp ring <portRspMax>
2905 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2906 "0312 Ring %d handler: portRspPut %d "
2907 "is bigger than rsp ring %d\n",
2908 pring->ringno, le32_to_cpu(pgp->rspPutInx),
2909 pring->sli.sli3.numRiocb);
2911 phba->link_state = LPFC_HBA_ERROR;
2914 * All error attention handlers are posted to
2917 phba->work_ha |= HA_ERATT;
2918 phba->work_hs = HS_FFER3;
2920 lpfc_worker_wake_up(phba);
2926 * lpfc_poll_eratt - Error attention polling timer timeout handler
2927 * @ptr: Pointer to address of HBA context object.
2929 * This function is invoked by the Error Attention polling timer when the
2930 * timer times out. It will check the SLI Error Attention register for
2931 * possible attention events. If so, it will post an Error Attention event
2932 * and wake up worker thread to process it. Otherwise, it will set up the
2933 * Error Attention polling timer for the next poll.
2935 void lpfc_poll_eratt(unsigned long ptr)
2937 struct lpfc_hba *phba;
2939 uint64_t sli_intr, cnt;
2941 phba = (struct lpfc_hba *)ptr;
2943 /* Here we will also keep track of interrupts per sec of the hba */
2944 sli_intr = phba->sli.slistat.sli_intr;
2946 if (phba->sli.slistat.sli_prev_intr > sli_intr)
2947 cnt = (((uint64_t)(-1) - phba->sli.slistat.sli_prev_intr) +
2950 cnt = (sli_intr - phba->sli.slistat.sli_prev_intr);
2952 /* 64-bit integer division not supporte on 32-bit x86 - use do_div */
2953 do_div(cnt, LPFC_ERATT_POLL_INTERVAL);
2954 phba->sli.slistat.sli_ips = cnt;
2956 phba->sli.slistat.sli_prev_intr = sli_intr;
2958 /* Check chip HA register for error event */
2959 eratt = lpfc_sli_check_eratt(phba);
2962 /* Tell the worker thread there is work to do */
2963 lpfc_worker_wake_up(phba);
2965 /* Restart the timer for next eratt poll */
2966 mod_timer(&phba->eratt_poll,
2968 msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
2974 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
2975 * @phba: Pointer to HBA context object.
2976 * @pring: Pointer to driver SLI ring object.
2977 * @mask: Host attention register mask for this ring.
2979 * This function is called from the interrupt context when there is a ring
2980 * event for the fcp ring. The caller does not hold any lock.
2981 * The function processes each response iocb in the response ring until it
2982 * finds an iocb with LE bit set and chains all the iocbs up to the iocb with
2983 * LE bit set. The function will call the completion handler of the command iocb
2984 * if the response iocb indicates a completion for a command iocb or it is
2985 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
2986 * function if this is an unsolicited iocb.
2987 * This routine presumes LPFC_FCP_RING handling and doesn't bother
2988 * to check it explicitly.
2991 lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
2992 struct lpfc_sli_ring *pring, uint32_t mask)
2994 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2995 IOCB_t *irsp = NULL;
2996 IOCB_t *entry = NULL;
2997 struct lpfc_iocbq *cmdiocbq = NULL;
2998 struct lpfc_iocbq rspiocbq;
3000 uint32_t portRspPut, portRspMax;
3002 lpfc_iocb_type type;
3003 unsigned long iflag;
3004 uint32_t rsp_cmpl = 0;
3006 spin_lock_irqsave(&phba->hbalock, iflag);
3007 pring->stats.iocb_event++;
3010 * The next available response entry should never exceed the maximum
3011 * entries. If it does, treat it as an adapter hardware error.
3013 portRspMax = pring->sli.sli3.numRiocb;
3014 portRspPut = le32_to_cpu(pgp->rspPutInx);
3015 if (unlikely(portRspPut >= portRspMax)) {
3016 lpfc_sli_rsp_pointers_error(phba, pring);
3017 spin_unlock_irqrestore(&phba->hbalock, iflag);
3020 if (phba->fcp_ring_in_use) {
3021 spin_unlock_irqrestore(&phba->hbalock, iflag);
3024 phba->fcp_ring_in_use = 1;
3027 while (pring->sli.sli3.rspidx != portRspPut) {
3029 * Fetch an entry off the ring and copy it into a local data
3030 * structure. The copy involves a byte-swap since the
3031 * network byte order and pci byte orders are different.
3033 entry = lpfc_resp_iocb(phba, pring);
3034 phba->last_completion_time = jiffies;
3036 if (++pring->sli.sli3.rspidx >= portRspMax)
3037 pring->sli.sli3.rspidx = 0;
3039 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
3040 (uint32_t *) &rspiocbq.iocb,
3041 phba->iocb_rsp_size);
3042 INIT_LIST_HEAD(&(rspiocbq.list));
3043 irsp = &rspiocbq.iocb;
3045 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
3046 pring->stats.iocb_rsp++;
3049 if (unlikely(irsp->ulpStatus)) {
3051 * If resource errors reported from HBA, reduce
3052 * queuedepths of the SCSI device.
3054 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3055 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3056 IOERR_NO_RESOURCES)) {
3057 spin_unlock_irqrestore(&phba->hbalock, iflag);
3058 phba->lpfc_rampdown_queue_depth(phba);
3059 spin_lock_irqsave(&phba->hbalock, iflag);
3062 /* Rsp ring <ringno> error: IOCB */
3063 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3064 "0336 Rsp Ring %d error: IOCB Data: "
3065 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
3067 irsp->un.ulpWord[0],
3068 irsp->un.ulpWord[1],
3069 irsp->un.ulpWord[2],
3070 irsp->un.ulpWord[3],
3071 irsp->un.ulpWord[4],
3072 irsp->un.ulpWord[5],
3073 *(uint32_t *)&irsp->un1,
3074 *((uint32_t *)&irsp->un1 + 1));
3078 case LPFC_ABORT_IOCB:
3081 * Idle exchange closed via ABTS from port. No iocb
3082 * resources need to be recovered.
3084 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
3085 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3086 "0333 IOCB cmd 0x%x"
3087 " processed. Skipping"
3093 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
3095 if (unlikely(!cmdiocbq))
3097 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED)
3098 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
3099 if (cmdiocbq->iocb_cmpl) {
3100 spin_unlock_irqrestore(&phba->hbalock, iflag);
3101 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
3103 spin_lock_irqsave(&phba->hbalock, iflag);
3106 case LPFC_UNSOL_IOCB:
3107 spin_unlock_irqrestore(&phba->hbalock, iflag);
3108 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
3109 spin_lock_irqsave(&phba->hbalock, iflag);
3112 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3113 char adaptermsg[LPFC_MAX_ADPTMSG];
3114 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3115 memcpy(&adaptermsg[0], (uint8_t *) irsp,
3117 dev_warn(&((phba->pcidev)->dev),
3119 phba->brd_no, adaptermsg);
3121 /* Unknown IOCB command */
3122 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3123 "0334 Unknown IOCB command "
3124 "Data: x%x, x%x x%x x%x x%x\n",
3125 type, irsp->ulpCommand,
3134 * The response IOCB has been processed. Update the ring
3135 * pointer in SLIM. If the port response put pointer has not
3136 * been updated, sync the pgp->rspPutInx and fetch the new port
3137 * response put pointer.
3139 writel(pring->sli.sli3.rspidx,
3140 &phba->host_gp[pring->ringno].rspGetInx);
3142 if (pring->sli.sli3.rspidx == portRspPut)
3143 portRspPut = le32_to_cpu(pgp->rspPutInx);
3146 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
3147 pring->stats.iocb_rsp_full++;
3148 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3149 writel(status, phba->CAregaddr);
3150 readl(phba->CAregaddr);
3152 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3153 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3154 pring->stats.iocb_cmd_empty++;
3156 /* Force update of the local copy of cmdGetInx */
3157 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3158 lpfc_sli_resume_iocb(phba, pring);
3160 if ((pring->lpfc_sli_cmd_available))
3161 (pring->lpfc_sli_cmd_available) (phba, pring);
3165 phba->fcp_ring_in_use = 0;
3166 spin_unlock_irqrestore(&phba->hbalock, iflag);
3171 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
3172 * @phba: Pointer to HBA context object.
3173 * @pring: Pointer to driver SLI ring object.
3174 * @rspiocbp: Pointer to driver response IOCB object.
3176 * This function is called from the worker thread when there is a slow-path
3177 * response IOCB to process. This function chains all the response iocbs until
3178 * seeing the iocb with the LE bit set. The function will call
3179 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
3180 * completion of a command iocb. The function will call the
3181 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
3182 * The function frees the resources or calls the completion handler if this
3183 * iocb is an abort completion. The function returns NULL when the response
3184 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
3185 * this function shall chain the iocb on to the iocb_continueq and return the
3186 * response iocb passed in.
3188 static struct lpfc_iocbq *
3189 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3190 struct lpfc_iocbq *rspiocbp)
3192 struct lpfc_iocbq *saveq;
3193 struct lpfc_iocbq *cmdiocbp;
3194 struct lpfc_iocbq *next_iocb;
3195 IOCB_t *irsp = NULL;
3196 uint32_t free_saveq;
3197 uint8_t iocb_cmd_type;
3198 lpfc_iocb_type type;
3199 unsigned long iflag;
3202 spin_lock_irqsave(&phba->hbalock, iflag);
3203 /* First add the response iocb to the countinueq list */
3204 list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
3205 pring->iocb_continueq_cnt++;
3207 /* Now, determine whether the list is completed for processing */
3208 irsp = &rspiocbp->iocb;
3211 * By default, the driver expects to free all resources
3212 * associated with this iocb completion.
3215 saveq = list_get_first(&pring->iocb_continueq,
3216 struct lpfc_iocbq, list);
3217 irsp = &(saveq->iocb);
3218 list_del_init(&pring->iocb_continueq);
3219 pring->iocb_continueq_cnt = 0;
3221 pring->stats.iocb_rsp++;
3224 * If resource errors reported from HBA, reduce
3225 * queuedepths of the SCSI device.
3227 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3228 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3229 IOERR_NO_RESOURCES)) {
3230 spin_unlock_irqrestore(&phba->hbalock, iflag);
3231 phba->lpfc_rampdown_queue_depth(phba);
3232 spin_lock_irqsave(&phba->hbalock, iflag);
3235 if (irsp->ulpStatus) {
3236 /* Rsp ring <ringno> error: IOCB */
3237 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3238 "0328 Rsp Ring %d error: "
3243 "x%x x%x x%x x%x\n",
3245 irsp->un.ulpWord[0],
3246 irsp->un.ulpWord[1],
3247 irsp->un.ulpWord[2],
3248 irsp->un.ulpWord[3],
3249 irsp->un.ulpWord[4],
3250 irsp->un.ulpWord[5],
3251 *(((uint32_t *) irsp) + 6),
3252 *(((uint32_t *) irsp) + 7),
3253 *(((uint32_t *) irsp) + 8),
3254 *(((uint32_t *) irsp) + 9),
3255 *(((uint32_t *) irsp) + 10),
3256 *(((uint32_t *) irsp) + 11),
3257 *(((uint32_t *) irsp) + 12),
3258 *(((uint32_t *) irsp) + 13),
3259 *(((uint32_t *) irsp) + 14),
3260 *(((uint32_t *) irsp) + 15));
3264 * Fetch the IOCB command type and call the correct completion
3265 * routine. Solicited and Unsolicited IOCBs on the ELS ring
3266 * get freed back to the lpfc_iocb_list by the discovery
3269 iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
3270 type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
3273 spin_unlock_irqrestore(&phba->hbalock, iflag);
3274 rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
3275 spin_lock_irqsave(&phba->hbalock, iflag);
3278 case LPFC_UNSOL_IOCB:
3279 spin_unlock_irqrestore(&phba->hbalock, iflag);
3280 rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
3281 spin_lock_irqsave(&phba->hbalock, iflag);
3286 case LPFC_ABORT_IOCB:
3288 if (irsp->ulpCommand != CMD_XRI_ABORTED_CX)
3289 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
3292 /* Call the specified completion routine */
3293 if (cmdiocbp->iocb_cmpl) {
3294 spin_unlock_irqrestore(&phba->hbalock,
3296 (cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
3298 spin_lock_irqsave(&phba->hbalock,
3301 __lpfc_sli_release_iocbq(phba,
3306 case LPFC_UNKNOWN_IOCB:
3307 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3308 char adaptermsg[LPFC_MAX_ADPTMSG];
3309 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3310 memcpy(&adaptermsg[0], (uint8_t *)irsp,
3312 dev_warn(&((phba->pcidev)->dev),
3314 phba->brd_no, adaptermsg);
3316 /* Unknown IOCB command */
3317 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3318 "0335 Unknown IOCB "
3319 "command Data: x%x "
3330 list_for_each_entry_safe(rspiocbp, next_iocb,
3331 &saveq->list, list) {
3332 list_del_init(&rspiocbp->list);
3333 __lpfc_sli_release_iocbq(phba, rspiocbp);
3335 __lpfc_sli_release_iocbq(phba, saveq);
3339 spin_unlock_irqrestore(&phba->hbalock, iflag);
3344 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
3345 * @phba: Pointer to HBA context object.
3346 * @pring: Pointer to driver SLI ring object.
3347 * @mask: Host attention register mask for this ring.
3349 * This routine wraps the actual slow_ring event process routine from the
3350 * API jump table function pointer from the lpfc_hba struct.
3353 lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
3354 struct lpfc_sli_ring *pring, uint32_t mask)
3356 phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
3360 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
3361 * @phba: Pointer to HBA context object.
3362 * @pring: Pointer to driver SLI ring object.
3363 * @mask: Host attention register mask for this ring.
3365 * This function is called from the worker thread when there is a ring event
3366 * for non-fcp rings. The caller does not hold any lock. The function will
3367 * remove each response iocb in the response ring and calls the handle
3368 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3371 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
3372 struct lpfc_sli_ring *pring, uint32_t mask)
3374 struct lpfc_pgp *pgp;
3376 IOCB_t *irsp = NULL;
3377 struct lpfc_iocbq *rspiocbp = NULL;
3378 uint32_t portRspPut, portRspMax;
3379 unsigned long iflag;
3382 pgp = &phba->port_gp[pring->ringno];
3383 spin_lock_irqsave(&phba->hbalock, iflag);
3384 pring->stats.iocb_event++;
3387 * The next available response entry should never exceed the maximum
3388 * entries. If it does, treat it as an adapter hardware error.
3390 portRspMax = pring->sli.sli3.numRiocb;
3391 portRspPut = le32_to_cpu(pgp->rspPutInx);
3392 if (portRspPut >= portRspMax) {
3394 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
3395 * rsp ring <portRspMax>
3397 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3398 "0303 Ring %d handler: portRspPut %d "
3399 "is bigger than rsp ring %d\n",
3400 pring->ringno, portRspPut, portRspMax);
3402 phba->link_state = LPFC_HBA_ERROR;
3403 spin_unlock_irqrestore(&phba->hbalock, iflag);
3405 phba->work_hs = HS_FFER3;
3406 lpfc_handle_eratt(phba);
3412 while (pring->sli.sli3.rspidx != portRspPut) {
3414 * Build a completion list and call the appropriate handler.
3415 * The process is to get the next available response iocb, get
3416 * a free iocb from the list, copy the response data into the
3417 * free iocb, insert to the continuation list, and update the
3418 * next response index to slim. This process makes response
3419 * iocb's in the ring available to DMA as fast as possible but
3420 * pays a penalty for a copy operation. Since the iocb is
3421 * only 32 bytes, this penalty is considered small relative to
3422 * the PCI reads for register values and a slim write. When
3423 * the ulpLe field is set, the entire Command has been
3426 entry = lpfc_resp_iocb(phba, pring);
3428 phba->last_completion_time = jiffies;
3429 rspiocbp = __lpfc_sli_get_iocbq(phba);
3430 if (rspiocbp == NULL) {
3431 printk(KERN_ERR "%s: out of buffers! Failing "
3432 "completion.\n", __func__);
3436 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
3437 phba->iocb_rsp_size);
3438 irsp = &rspiocbp->iocb;
3440 if (++pring->sli.sli3.rspidx >= portRspMax)
3441 pring->sli.sli3.rspidx = 0;
3443 if (pring->ringno == LPFC_ELS_RING) {
3444 lpfc_debugfs_slow_ring_trc(phba,
3445 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
3446 *(((uint32_t *) irsp) + 4),
3447 *(((uint32_t *) irsp) + 6),
3448 *(((uint32_t *) irsp) + 7));
3451 writel(pring->sli.sli3.rspidx,
3452 &phba->host_gp[pring->ringno].rspGetInx);
3454 spin_unlock_irqrestore(&phba->hbalock, iflag);
3455 /* Handle the response IOCB */
3456 rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
3457 spin_lock_irqsave(&phba->hbalock, iflag);
3460 * If the port response put pointer has not been updated, sync
3461 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
3462 * response put pointer.
3464 if (pring->sli.sli3.rspidx == portRspPut) {
3465 portRspPut = le32_to_cpu(pgp->rspPutInx);
3467 } /* while (pring->sli.sli3.rspidx != portRspPut) */
3469 if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
3470 /* At least one response entry has been freed */
3471 pring->stats.iocb_rsp_full++;
3472 /* SET RxRE_RSP in Chip Att register */
3473 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3474 writel(status, phba->CAregaddr);
3475 readl(phba->CAregaddr); /* flush */
3477 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3478 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3479 pring->stats.iocb_cmd_empty++;
3481 /* Force update of the local copy of cmdGetInx */
3482 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3483 lpfc_sli_resume_iocb(phba, pring);
3485 if ((pring->lpfc_sli_cmd_available))
3486 (pring->lpfc_sli_cmd_available) (phba, pring);
3490 spin_unlock_irqrestore(&phba->hbalock, iflag);
3495 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
3496 * @phba: Pointer to HBA context object.
3497 * @pring: Pointer to driver SLI ring object.
3498 * @mask: Host attention register mask for this ring.
3500 * This function is called from the worker thread when there is a pending
3501 * ELS response iocb on the driver internal slow-path response iocb worker
3502 * queue. The caller does not hold any lock. The function will remove each
3503 * response iocb from the response worker queue and calls the handle
3504 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3507 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
3508 struct lpfc_sli_ring *pring, uint32_t mask)
3510 struct lpfc_iocbq *irspiocbq;
3511 struct hbq_dmabuf *dmabuf;
3512 struct lpfc_cq_event *cq_event;
3513 unsigned long iflag;
3515 spin_lock_irqsave(&phba->hbalock, iflag);
3516 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
3517 spin_unlock_irqrestore(&phba->hbalock, iflag);
3518 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
3519 /* Get the response iocb from the head of work queue */
3520 spin_lock_irqsave(&phba->hbalock, iflag);
3521 list_remove_head(&phba->sli4_hba.sp_queue_event,
3522 cq_event, struct lpfc_cq_event, list);
3523 spin_unlock_irqrestore(&phba->hbalock, iflag);
3525 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
3526 case CQE_CODE_COMPL_WQE:
3527 irspiocbq = container_of(cq_event, struct lpfc_iocbq,
3529 /* Translate ELS WCQE to response IOCBQ */
3530 irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba,
3533 lpfc_sli_sp_handle_rspiocb(phba, pring,
3536 case CQE_CODE_RECEIVE:
3537 case CQE_CODE_RECEIVE_V1:
3538 dmabuf = container_of(cq_event, struct hbq_dmabuf,
3540 lpfc_sli4_handle_received_buffer(phba, dmabuf);
3549 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
3550 * @phba: Pointer to HBA context object.
3551 * @pring: Pointer to driver SLI ring object.
3553 * This function aborts all iocbs in the given ring and frees all the iocb
3554 * objects in txq. This function issues an abort iocb for all the iocb commands
3555 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3556 * the return of this function. The caller is not required to hold any locks.
3559 lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3561 LIST_HEAD(completions);
3562 struct lpfc_iocbq *iocb, *next_iocb;
3564 if (pring->ringno == LPFC_ELS_RING) {
3565 lpfc_fabric_abort_hba(phba);
3568 /* Error everything on txq and txcmplq
3571 if (phba->sli_rev >= LPFC_SLI_REV4) {
3572 spin_lock_irq(&pring->ring_lock);
3573 list_splice_init(&pring->txq, &completions);
3575 spin_unlock_irq(&pring->ring_lock);
3577 spin_lock_irq(&phba->hbalock);
3578 /* Next issue ABTS for everything on the txcmplq */
3579 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3580 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3581 spin_unlock_irq(&phba->hbalock);
3583 spin_lock_irq(&phba->hbalock);
3584 list_splice_init(&pring->txq, &completions);
3587 /* Next issue ABTS for everything on the txcmplq */
3588 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3589 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3590 spin_unlock_irq(&phba->hbalock);
3593 /* Cancel all the IOCBs from the completions list */
3594 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3599 * lpfc_sli_abort_fcp_rings - Abort all iocbs in all FCP rings
3600 * @phba: Pointer to HBA context object.
3601 * @pring: Pointer to driver SLI ring object.
3603 * This function aborts all iocbs in FCP rings and frees all the iocb
3604 * objects in txq. This function issues an abort iocb for all the iocb commands
3605 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3606 * the return of this function. The caller is not required to hold any locks.
3609 lpfc_sli_abort_fcp_rings(struct lpfc_hba *phba)
3611 struct lpfc_sli *psli = &phba->sli;
3612 struct lpfc_sli_ring *pring;
3615 /* Look on all the FCP Rings for the iotag */
3616 if (phba->sli_rev >= LPFC_SLI_REV4) {
3617 for (i = 0; i < phba->cfg_fcp_io_channel; i++) {
3618 pring = &psli->ring[i + MAX_SLI3_CONFIGURED_RINGS];
3619 lpfc_sli_abort_iocb_ring(phba, pring);
3622 pring = &psli->ring[psli->fcp_ring];
3623 lpfc_sli_abort_iocb_ring(phba, pring);
3629 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
3630 * @phba: Pointer to HBA context object.
3632 * This function flushes all iocbs in the fcp ring and frees all the iocb
3633 * objects in txq and txcmplq. This function will not issue abort iocbs
3634 * for all the iocb commands in txcmplq, they will just be returned with
3635 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3636 * slot has been permanently disabled.
3639 lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba)
3643 struct lpfc_sli *psli = &phba->sli;
3644 struct lpfc_sli_ring *pring;
3647 spin_lock_irq(&phba->hbalock);
3648 /* Indicate the I/O queues are flushed */
3649 phba->hba_flag |= HBA_FCP_IOQ_FLUSH;
3650 spin_unlock_irq(&phba->hbalock);
3652 /* Look on all the FCP Rings for the iotag */
3653 if (phba->sli_rev >= LPFC_SLI_REV4) {
3654 for (i = 0; i < phba->cfg_fcp_io_channel; i++) {
3655 pring = &psli->ring[i + MAX_SLI3_CONFIGURED_RINGS];
3657 spin_lock_irq(&pring->ring_lock);
3658 /* Retrieve everything on txq */
3659 list_splice_init(&pring->txq, &txq);
3660 /* Retrieve everything on the txcmplq */
3661 list_splice_init(&pring->txcmplq, &txcmplq);
3663 pring->txcmplq_cnt = 0;
3664 spin_unlock_irq(&pring->ring_lock);
3667 lpfc_sli_cancel_iocbs(phba, &txq,
3668 IOSTAT_LOCAL_REJECT,
3670 /* Flush the txcmpq */
3671 lpfc_sli_cancel_iocbs(phba, &txcmplq,
3672 IOSTAT_LOCAL_REJECT,
3676 pring = &psli->ring[psli->fcp_ring];
3678 spin_lock_irq(&phba->hbalock);
3679 /* Retrieve everything on txq */
3680 list_splice_init(&pring->txq, &txq);
3681 /* Retrieve everything on the txcmplq */
3682 list_splice_init(&pring->txcmplq, &txcmplq);
3684 pring->txcmplq_cnt = 0;
3685 spin_unlock_irq(&phba->hbalock);
3688 lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
3690 /* Flush the txcmpq */
3691 lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
3697 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
3698 * @phba: Pointer to HBA context object.
3699 * @mask: Bit mask to be checked.
3701 * This function reads the host status register and compares
3702 * with the provided bit mask to check if HBA completed
3703 * the restart. This function will wait in a loop for the
3704 * HBA to complete restart. If the HBA does not restart within
3705 * 15 iterations, the function will reset the HBA again. The
3706 * function returns 1 when HBA fail to restart otherwise returns
3710 lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
3716 /* Read the HBA Host Status Register */
3717 if (lpfc_readl(phba->HSregaddr, &status))
3721 * Check status register every 100ms for 5 retries, then every
3722 * 500ms for 5, then every 2.5 sec for 5, then reset board and
3723 * every 2.5 sec for 4.
3724 * Break our of the loop if errors occurred during init.
3726 while (((status & mask) != mask) &&
3727 !(status & HS_FFERM) &&
3739 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3740 lpfc_sli_brdrestart(phba);
3742 /* Read the HBA Host Status Register */
3743 if (lpfc_readl(phba->HSregaddr, &status)) {
3749 /* Check to see if any errors occurred during init */
3750 if ((status & HS_FFERM) || (i >= 20)) {
3751 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3752 "2751 Adapter failed to restart, "
3753 "status reg x%x, FW Data: A8 x%x AC x%x\n",
3755 readl(phba->MBslimaddr + 0xa8),
3756 readl(phba->MBslimaddr + 0xac));
3757 phba->link_state = LPFC_HBA_ERROR;
3765 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3766 * @phba: Pointer to HBA context object.
3767 * @mask: Bit mask to be checked.
3769 * This function checks the host status register to check if HBA is
3770 * ready. This function will wait in a loop for the HBA to be ready
3771 * If the HBA is not ready , the function will will reset the HBA PCI
3772 * function again. The function returns 1 when HBA fail to be ready
3773 * otherwise returns zero.
3776 lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
3781 /* Read the HBA Host Status Register */
3782 status = lpfc_sli4_post_status_check(phba);
3785 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3786 lpfc_sli_brdrestart(phba);
3787 status = lpfc_sli4_post_status_check(phba);
3790 /* Check to see if any errors occurred during init */
3792 phba->link_state = LPFC_HBA_ERROR;
3795 phba->sli4_hba.intr_enable = 0;
3801 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3802 * @phba: Pointer to HBA context object.
3803 * @mask: Bit mask to be checked.
3805 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3806 * from the API jump table function pointer from the lpfc_hba struct.
3809 lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
3811 return phba->lpfc_sli_brdready(phba, mask);
3814 #define BARRIER_TEST_PATTERN (0xdeadbeef)
3817 * lpfc_reset_barrier - Make HBA ready for HBA reset
3818 * @phba: Pointer to HBA context object.
3820 * This function is called before resetting an HBA. This function is called
3821 * with hbalock held and requests HBA to quiesce DMAs before a reset.
3823 void lpfc_reset_barrier(struct lpfc_hba *phba)
3825 uint32_t __iomem *resp_buf;
3826 uint32_t __iomem *mbox_buf;
3827 volatile uint32_t mbox;
3828 uint32_t hc_copy, ha_copy, resp_data;
3832 lockdep_assert_held(&phba->hbalock);
3834 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
3835 if (hdrtype != 0x80 ||
3836 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
3837 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
3841 * Tell the other part of the chip to suspend temporarily all
3844 resp_buf = phba->MBslimaddr;
3846 /* Disable the error attention */
3847 if (lpfc_readl(phba->HCregaddr, &hc_copy))
3849 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
3850 readl(phba->HCregaddr); /* flush */
3851 phba->link_flag |= LS_IGNORE_ERATT;
3853 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3855 if (ha_copy & HA_ERATT) {
3856 /* Clear Chip error bit */
3857 writel(HA_ERATT, phba->HAregaddr);
3858 phba->pport->stopped = 1;
3862 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
3863 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
3865 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
3866 mbox_buf = phba->MBslimaddr;
3867 writel(mbox, mbox_buf);
3869 for (i = 0; i < 50; i++) {
3870 if (lpfc_readl((resp_buf + 1), &resp_data))
3872 if (resp_data != ~(BARRIER_TEST_PATTERN))
3878 if (lpfc_readl((resp_buf + 1), &resp_data))
3880 if (resp_data != ~(BARRIER_TEST_PATTERN)) {
3881 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
3882 phba->pport->stopped)
3888 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
3890 for (i = 0; i < 500; i++) {
3891 if (lpfc_readl(resp_buf, &resp_data))
3893 if (resp_data != mbox)
3902 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3904 if (!(ha_copy & HA_ERATT))
3910 if (readl(phba->HAregaddr) & HA_ERATT) {
3911 writel(HA_ERATT, phba->HAregaddr);
3912 phba->pport->stopped = 1;
3916 phba->link_flag &= ~LS_IGNORE_ERATT;
3917 writel(hc_copy, phba->HCregaddr);
3918 readl(phba->HCregaddr); /* flush */
3922 * lpfc_sli_brdkill - Issue a kill_board mailbox command
3923 * @phba: Pointer to HBA context object.
3925 * This function issues a kill_board mailbox command and waits for
3926 * the error attention interrupt. This function is called for stopping
3927 * the firmware processing. The caller is not required to hold any
3928 * locks. This function calls lpfc_hba_down_post function to free
3929 * any pending commands after the kill. The function will return 1 when it
3930 * fails to kill the board else will return 0.
3933 lpfc_sli_brdkill(struct lpfc_hba *phba)
3935 struct lpfc_sli *psli;
3945 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3946 "0329 Kill HBA Data: x%x x%x\n",
3947 phba->pport->port_state, psli->sli_flag);
3949 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3953 /* Disable the error attention */
3954 spin_lock_irq(&phba->hbalock);
3955 if (lpfc_readl(phba->HCregaddr, &status)) {
3956 spin_unlock_irq(&phba->hbalock);
3957 mempool_free(pmb, phba->mbox_mem_pool);
3960 status &= ~HC_ERINT_ENA;
3961 writel(status, phba->HCregaddr);
3962 readl(phba->HCregaddr); /* flush */
3963 phba->link_flag |= LS_IGNORE_ERATT;
3964 spin_unlock_irq(&phba->hbalock);
3966 lpfc_kill_board(phba, pmb);
3967 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3968 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3970 if (retval != MBX_SUCCESS) {
3971 if (retval != MBX_BUSY)
3972 mempool_free(pmb, phba->mbox_mem_pool);
3973 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3974 "2752 KILL_BOARD command failed retval %d\n",
3976 spin_lock_irq(&phba->hbalock);
3977 phba->link_flag &= ~LS_IGNORE_ERATT;
3978 spin_unlock_irq(&phba->hbalock);
3982 spin_lock_irq(&phba->hbalock);
3983 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
3984 spin_unlock_irq(&phba->hbalock);
3986 mempool_free(pmb, phba->mbox_mem_pool);
3988 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
3989 * attention every 100ms for 3 seconds. If we don't get ERATT after
3990 * 3 seconds we still set HBA_ERROR state because the status of the
3991 * board is now undefined.
3993 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3995 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
3997 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4001 del_timer_sync(&psli->mbox_tmo);
4002 if (ha_copy & HA_ERATT) {
4003 writel(HA_ERATT, phba->HAregaddr);
4004 phba->pport->stopped = 1;
4006 spin_lock_irq(&phba->hbalock);
4007 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4008 psli->mbox_active = NULL;
4009 phba->link_flag &= ~LS_IGNORE_ERATT;
4010 spin_unlock_irq(&phba->hbalock);
4012 lpfc_hba_down_post(phba);
4013 phba->link_state = LPFC_HBA_ERROR;
4015 return ha_copy & HA_ERATT ? 0 : 1;
4019 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
4020 * @phba: Pointer to HBA context object.
4022 * This function resets the HBA by writing HC_INITFF to the control
4023 * register. After the HBA resets, this function resets all the iocb ring
4024 * indices. This function disables PCI layer parity checking during
4026 * This function returns 0 always.
4027 * The caller is not required to hold any locks.
4030 lpfc_sli_brdreset(struct lpfc_hba *phba)
4032 struct lpfc_sli *psli;
4033 struct lpfc_sli_ring *pring;
4040 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4041 "0325 Reset HBA Data: x%x x%x\n",
4042 phba->pport->port_state, psli->sli_flag);
4044 /* perform board reset */
4045 phba->fc_eventTag = 0;
4046 phba->link_events = 0;
4047 phba->pport->fc_myDID = 0;
4048 phba->pport->fc_prevDID = 0;
4050 /* Turn off parity checking and serr during the physical reset */
4051 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
4052 pci_write_config_word(phba->pcidev, PCI_COMMAND,
4054 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4056 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
4058 /* Now toggle INITFF bit in the Host Control Register */
4059 writel(HC_INITFF, phba->HCregaddr);
4061 readl(phba->HCregaddr); /* flush */
4062 writel(0, phba->HCregaddr);
4063 readl(phba->HCregaddr); /* flush */
4065 /* Restore PCI cmd register */
4066 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
4068 /* Initialize relevant SLI info */
4069 for (i = 0; i < psli->num_rings; i++) {
4070 pring = &psli->ring[i];
4072 pring->sli.sli3.rspidx = 0;
4073 pring->sli.sli3.next_cmdidx = 0;
4074 pring->sli.sli3.local_getidx = 0;
4075 pring->sli.sli3.cmdidx = 0;
4076 pring->missbufcnt = 0;
4079 phba->link_state = LPFC_WARM_START;
4084 * lpfc_sli4_brdreset - Reset a sli-4 HBA
4085 * @phba: Pointer to HBA context object.
4087 * This function resets a SLI4 HBA. This function disables PCI layer parity
4088 * checking during resets the device. The caller is not required to hold
4091 * This function returns 0 always.
4094 lpfc_sli4_brdreset(struct lpfc_hba *phba)
4096 struct lpfc_sli *psli = &phba->sli;
4101 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4102 "0295 Reset HBA Data: x%x x%x x%x\n",
4103 phba->pport->port_state, psli->sli_flag,
4106 /* perform board reset */
4107 phba->fc_eventTag = 0;
4108 phba->link_events = 0;
4109 phba->pport->fc_myDID = 0;
4110 phba->pport->fc_prevDID = 0;
4112 spin_lock_irq(&phba->hbalock);
4113 psli->sli_flag &= ~(LPFC_PROCESS_LA);
4114 phba->fcf.fcf_flag = 0;
4115 spin_unlock_irq(&phba->hbalock);
4117 /* SLI4 INTF 2: if FW dump is being taken skip INIT_PORT */
4118 if (phba->hba_flag & HBA_FW_DUMP_OP) {
4119 phba->hba_flag &= ~HBA_FW_DUMP_OP;
4123 /* Now physically reset the device */
4124 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4125 "0389 Performing PCI function reset!\n");
4127 /* Turn off parity checking and serr during the physical reset */
4128 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
4129 pci_write_config_word(phba->pcidev, PCI_COMMAND, (cfg_value &
4130 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4132 /* Perform FCoE PCI function reset before freeing queue memory */
4133 rc = lpfc_pci_function_reset(phba);
4134 lpfc_sli4_queue_destroy(phba);
4136 /* Restore PCI cmd register */
4137 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
4143 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
4144 * @phba: Pointer to HBA context object.
4146 * This function is called in the SLI initialization code path to
4147 * restart the HBA. The caller is not required to hold any lock.
4148 * This function writes MBX_RESTART mailbox command to the SLIM and
4149 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
4150 * function to free any pending commands. The function enables
4151 * POST only during the first initialization. The function returns zero.
4152 * The function does not guarantee completion of MBX_RESTART mailbox
4153 * command before the return of this function.
4156 lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
4159 struct lpfc_sli *psli;
4160 volatile uint32_t word0;
4161 void __iomem *to_slim;
4162 uint32_t hba_aer_enabled;
4164 spin_lock_irq(&phba->hbalock);
4166 /* Take PCIe device Advanced Error Reporting (AER) state */
4167 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4172 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4173 "0337 Restart HBA Data: x%x x%x\n",
4174 phba->pport->port_state, psli->sli_flag);
4177 mb = (MAILBOX_t *) &word0;
4178 mb->mbxCommand = MBX_RESTART;
4181 lpfc_reset_barrier(phba);
4183 to_slim = phba->MBslimaddr;
4184 writel(*(uint32_t *) mb, to_slim);
4185 readl(to_slim); /* flush */
4187 /* Only skip post after fc_ffinit is completed */
4188 if (phba->pport->port_state)
4189 word0 = 1; /* This is really setting up word1 */
4191 word0 = 0; /* This is really setting up word1 */
4192 to_slim = phba->MBslimaddr + sizeof (uint32_t);
4193 writel(*(uint32_t *) mb, to_slim);
4194 readl(to_slim); /* flush */
4196 lpfc_sli_brdreset(phba);
4197 phba->pport->stopped = 0;
4198 phba->link_state = LPFC_INIT_START;
4200 spin_unlock_irq(&phba->hbalock);
4202 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4203 psli->stats_start = get_seconds();
4205 /* Give the INITFF and Post time to settle. */
4208 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4209 if (hba_aer_enabled)
4210 pci_disable_pcie_error_reporting(phba->pcidev);
4212 lpfc_hba_down_post(phba);
4218 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
4219 * @phba: Pointer to HBA context object.
4221 * This function is called in the SLI initialization code path to restart
4222 * a SLI4 HBA. The caller is not required to hold any lock.
4223 * At the end of the function, it calls lpfc_hba_down_post function to
4224 * free any pending commands.
4227 lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
4229 struct lpfc_sli *psli = &phba->sli;
4230 uint32_t hba_aer_enabled;
4234 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4235 "0296 Restart HBA Data: x%x x%x\n",
4236 phba->pport->port_state, psli->sli_flag);
4238 /* Take PCIe device Advanced Error Reporting (AER) state */
4239 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4241 rc = lpfc_sli4_brdreset(phba);
4243 spin_lock_irq(&phba->hbalock);
4244 phba->pport->stopped = 0;
4245 phba->link_state = LPFC_INIT_START;
4247 spin_unlock_irq(&phba->hbalock);
4249 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4250 psli->stats_start = get_seconds();
4252 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4253 if (hba_aer_enabled)
4254 pci_disable_pcie_error_reporting(phba->pcidev);
4256 lpfc_hba_down_post(phba);
4262 * lpfc_sli_brdrestart - Wrapper func for restarting hba
4263 * @phba: Pointer to HBA context object.
4265 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
4266 * API jump table function pointer from the lpfc_hba struct.
4269 lpfc_sli_brdrestart(struct lpfc_hba *phba)
4271 return phba->lpfc_sli_brdrestart(phba);
4275 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
4276 * @phba: Pointer to HBA context object.
4278 * This function is called after a HBA restart to wait for successful
4279 * restart of the HBA. Successful restart of the HBA is indicated by
4280 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
4281 * iteration, the function will restart the HBA again. The function returns
4282 * zero if HBA successfully restarted else returns negative error code.
4285 lpfc_sli_chipset_init(struct lpfc_hba *phba)
4287 uint32_t status, i = 0;
4289 /* Read the HBA Host Status Register */
4290 if (lpfc_readl(phba->HSregaddr, &status))
4293 /* Check status register to see what current state is */
4295 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
4297 /* Check every 10ms for 10 retries, then every 100ms for 90
4298 * retries, then every 1 sec for 50 retires for a total of
4299 * ~60 seconds before reset the board again and check every
4300 * 1 sec for 50 retries. The up to 60 seconds before the
4301 * board ready is required by the Falcon FIPS zeroization
4302 * complete, and any reset the board in between shall cause
4303 * restart of zeroization, further delay the board ready.
4306 /* Adapter failed to init, timeout, status reg
4308 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4309 "0436 Adapter failed to init, "
4310 "timeout, status reg x%x, "
4311 "FW Data: A8 x%x AC x%x\n", status,
4312 readl(phba->MBslimaddr + 0xa8),
4313 readl(phba->MBslimaddr + 0xac));
4314 phba->link_state = LPFC_HBA_ERROR;
4318 /* Check to see if any errors occurred during init */
4319 if (status & HS_FFERM) {
4320 /* ERROR: During chipset initialization */
4321 /* Adapter failed to init, chipset, status reg
4323 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4324 "0437 Adapter failed to init, "
4325 "chipset, status reg x%x, "
4326 "FW Data: A8 x%x AC x%x\n", status,
4327 readl(phba->MBslimaddr + 0xa8),
4328 readl(phba->MBslimaddr + 0xac));
4329 phba->link_state = LPFC_HBA_ERROR;
4342 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4343 lpfc_sli_brdrestart(phba);
4345 /* Read the HBA Host Status Register */
4346 if (lpfc_readl(phba->HSregaddr, &status))
4350 /* Check to see if any errors occurred during init */
4351 if (status & HS_FFERM) {
4352 /* ERROR: During chipset initialization */
4353 /* Adapter failed to init, chipset, status reg <status> */
4354 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4355 "0438 Adapter failed to init, chipset, "
4357 "FW Data: A8 x%x AC x%x\n", status,
4358 readl(phba->MBslimaddr + 0xa8),
4359 readl(phba->MBslimaddr + 0xac));
4360 phba->link_state = LPFC_HBA_ERROR;
4364 /* Clear all interrupt enable conditions */
4365 writel(0, phba->HCregaddr);
4366 readl(phba->HCregaddr); /* flush */
4368 /* setup host attn register */
4369 writel(0xffffffff, phba->HAregaddr);
4370 readl(phba->HAregaddr); /* flush */
4375 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
4377 * This function calculates and returns the number of HBQs required to be
4381 lpfc_sli_hbq_count(void)
4383 return ARRAY_SIZE(lpfc_hbq_defs);
4387 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
4389 * This function adds the number of hbq entries in every HBQ to get
4390 * the total number of hbq entries required for the HBA and returns
4394 lpfc_sli_hbq_entry_count(void)
4396 int hbq_count = lpfc_sli_hbq_count();
4400 for (i = 0; i < hbq_count; ++i)
4401 count += lpfc_hbq_defs[i]->entry_count;
4406 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
4408 * This function calculates amount of memory required for all hbq entries
4409 * to be configured and returns the total memory required.
4412 lpfc_sli_hbq_size(void)
4414 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
4418 * lpfc_sli_hbq_setup - configure and initialize HBQs
4419 * @phba: Pointer to HBA context object.
4421 * This function is called during the SLI initialization to configure
4422 * all the HBQs and post buffers to the HBQ. The caller is not
4423 * required to hold any locks. This function will return zero if successful
4424 * else it will return negative error code.
4427 lpfc_sli_hbq_setup(struct lpfc_hba *phba)
4429 int hbq_count = lpfc_sli_hbq_count();
4433 uint32_t hbq_entry_index;
4435 /* Get a Mailbox buffer to setup mailbox
4436 * commands for HBA initialization
4438 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4445 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
4446 phba->link_state = LPFC_INIT_MBX_CMDS;
4447 phba->hbq_in_use = 1;
4449 hbq_entry_index = 0;
4450 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
4451 phba->hbqs[hbqno].next_hbqPutIdx = 0;
4452 phba->hbqs[hbqno].hbqPutIdx = 0;
4453 phba->hbqs[hbqno].local_hbqGetIdx = 0;
4454 phba->hbqs[hbqno].entry_count =
4455 lpfc_hbq_defs[hbqno]->entry_count;
4456 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
4457 hbq_entry_index, pmb);
4458 hbq_entry_index += phba->hbqs[hbqno].entry_count;
4460 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
4461 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
4462 mbxStatus <status>, ring <num> */
4464 lpfc_printf_log(phba, KERN_ERR,
4465 LOG_SLI | LOG_VPORT,
4466 "1805 Adapter failed to init. "
4467 "Data: x%x x%x x%x\n",
4469 pmbox->mbxStatus, hbqno);
4471 phba->link_state = LPFC_HBA_ERROR;
4472 mempool_free(pmb, phba->mbox_mem_pool);
4476 phba->hbq_count = hbq_count;
4478 mempool_free(pmb, phba->mbox_mem_pool);
4480 /* Initially populate or replenish the HBQs */
4481 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
4482 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
4487 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
4488 * @phba: Pointer to HBA context object.
4490 * This function is called during the SLI initialization to configure
4491 * all the HBQs and post buffers to the HBQ. The caller is not
4492 * required to hold any locks. This function will return zero if successful
4493 * else it will return negative error code.
4496 lpfc_sli4_rb_setup(struct lpfc_hba *phba)
4498 phba->hbq_in_use = 1;
4499 phba->hbqs[0].entry_count = lpfc_hbq_defs[0]->entry_count;
4500 phba->hbq_count = 1;
4501 /* Initially populate or replenish the HBQs */
4502 lpfc_sli_hbqbuf_init_hbqs(phba, 0);
4507 * lpfc_sli_config_port - Issue config port mailbox command
4508 * @phba: Pointer to HBA context object.
4509 * @sli_mode: sli mode - 2/3
4511 * This function is called by the sli intialization code path
4512 * to issue config_port mailbox command. This function restarts the
4513 * HBA firmware and issues a config_port mailbox command to configure
4514 * the SLI interface in the sli mode specified by sli_mode
4515 * variable. The caller is not required to hold any locks.
4516 * The function returns 0 if successful, else returns negative error
4520 lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
4523 uint32_t resetcount = 0, rc = 0, done = 0;
4525 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4527 phba->link_state = LPFC_HBA_ERROR;
4531 phba->sli_rev = sli_mode;
4532 while (resetcount < 2 && !done) {
4533 spin_lock_irq(&phba->hbalock);
4534 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
4535 spin_unlock_irq(&phba->hbalock);
4536 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4537 lpfc_sli_brdrestart(phba);
4538 rc = lpfc_sli_chipset_init(phba);
4542 spin_lock_irq(&phba->hbalock);
4543 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4544 spin_unlock_irq(&phba->hbalock);
4547 /* Call pre CONFIG_PORT mailbox command initialization. A
4548 * value of 0 means the call was successful. Any other
4549 * nonzero value is a failure, but if ERESTART is returned,
4550 * the driver may reset the HBA and try again.
4552 rc = lpfc_config_port_prep(phba);
4553 if (rc == -ERESTART) {
4554 phba->link_state = LPFC_LINK_UNKNOWN;
4559 phba->link_state = LPFC_INIT_MBX_CMDS;
4560 lpfc_config_port(phba, pmb);
4561 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
4562 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
4563 LPFC_SLI3_HBQ_ENABLED |
4564 LPFC_SLI3_CRP_ENABLED |
4565 LPFC_SLI3_BG_ENABLED |
4566 LPFC_SLI3_DSS_ENABLED);
4567 if (rc != MBX_SUCCESS) {
4568 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4569 "0442 Adapter failed to init, mbxCmd x%x "
4570 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
4571 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
4572 spin_lock_irq(&phba->hbalock);
4573 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
4574 spin_unlock_irq(&phba->hbalock);
4577 /* Allow asynchronous mailbox command to go through */
4578 spin_lock_irq(&phba->hbalock);
4579 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
4580 spin_unlock_irq(&phba->hbalock);
4583 if ((pmb->u.mb.un.varCfgPort.casabt == 1) &&
4584 (pmb->u.mb.un.varCfgPort.gasabt == 0))
4585 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4586 "3110 Port did not grant ASABT\n");
4591 goto do_prep_failed;
4593 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
4594 if (!pmb->u.mb.un.varCfgPort.cMA) {
4596 goto do_prep_failed;
4598 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
4599 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
4600 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
4601 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
4602 phba->max_vpi : phba->max_vports;
4606 phba->fips_level = 0;
4607 phba->fips_spec_rev = 0;
4608 if (pmb->u.mb.un.varCfgPort.gdss) {
4609 phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
4610 phba->fips_level = pmb->u.mb.un.varCfgPort.fips_level;
4611 phba->fips_spec_rev = pmb->u.mb.un.varCfgPort.fips_rev;
4612 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4613 "2850 Security Crypto Active. FIPS x%d "
4615 phba->fips_level, phba->fips_spec_rev);
4617 if (pmb->u.mb.un.varCfgPort.sec_err) {
4618 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4619 "2856 Config Port Security Crypto "
4621 pmb->u.mb.un.varCfgPort.sec_err);
4623 if (pmb->u.mb.un.varCfgPort.gerbm)
4624 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
4625 if (pmb->u.mb.un.varCfgPort.gcrp)
4626 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
4628 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
4629 phba->port_gp = phba->mbox->us.s3_pgp.port;
4631 if (phba->cfg_enable_bg) {
4632 if (pmb->u.mb.un.varCfgPort.gbg)
4633 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
4635 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4636 "0443 Adapter did not grant "
4640 phba->hbq_get = NULL;
4641 phba->port_gp = phba->mbox->us.s2.port;
4645 mempool_free(pmb, phba->mbox_mem_pool);
4651 * lpfc_sli_hba_setup - SLI intialization function
4652 * @phba: Pointer to HBA context object.
4654 * This function is the main SLI intialization function. This function
4655 * is called by the HBA intialization code, HBA reset code and HBA
4656 * error attention handler code. Caller is not required to hold any
4657 * locks. This function issues config_port mailbox command to configure
4658 * the SLI, setup iocb rings and HBQ rings. In the end the function
4659 * calls the config_port_post function to issue init_link mailbox
4660 * command and to start the discovery. The function will return zero
4661 * if successful, else it will return negative error code.
4664 lpfc_sli_hba_setup(struct lpfc_hba *phba)
4670 switch (lpfc_sli_mode) {
4672 if (phba->cfg_enable_npiv) {
4673 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4674 "1824 NPIV enabled: Override lpfc_sli_mode "
4675 "parameter (%d) to auto (0).\n",
4685 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4686 "1819 Unrecognized lpfc_sli_mode "
4687 "parameter: %d.\n", lpfc_sli_mode);
4692 rc = lpfc_sli_config_port(phba, mode);
4694 if (rc && lpfc_sli_mode == 3)
4695 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4696 "1820 Unable to select SLI-3. "
4697 "Not supported by adapter.\n");
4698 if (rc && mode != 2)
4699 rc = lpfc_sli_config_port(phba, 2);
4701 goto lpfc_sli_hba_setup_error;
4703 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4704 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
4705 rc = pci_enable_pcie_error_reporting(phba->pcidev);
4707 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4708 "2709 This device supports "
4709 "Advanced Error Reporting (AER)\n");
4710 spin_lock_irq(&phba->hbalock);
4711 phba->hba_flag |= HBA_AER_ENABLED;
4712 spin_unlock_irq(&phba->hbalock);
4714 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4715 "2708 This device does not support "
4716 "Advanced Error Reporting (AER): %d\n",
4718 phba->cfg_aer_support = 0;
4722 if (phba->sli_rev == 3) {
4723 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
4724 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
4726 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
4727 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
4728 phba->sli3_options = 0;
4731 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4732 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
4733 phba->sli_rev, phba->max_vpi);
4734 rc = lpfc_sli_ring_map(phba);
4737 goto lpfc_sli_hba_setup_error;
4739 /* Initialize VPIs. */
4740 if (phba->sli_rev == LPFC_SLI_REV3) {
4742 * The VPI bitmask and physical ID array are allocated
4743 * and initialized once only - at driver load. A port
4744 * reset doesn't need to reinitialize this memory.
4746 if ((phba->vpi_bmask == NULL) && (phba->vpi_ids == NULL)) {
4747 longs = (phba->max_vpi + BITS_PER_LONG) / BITS_PER_LONG;
4748 phba->vpi_bmask = kzalloc(longs * sizeof(unsigned long),
4750 if (!phba->vpi_bmask) {
4752 goto lpfc_sli_hba_setup_error;
4755 phba->vpi_ids = kzalloc(
4756 (phba->max_vpi+1) * sizeof(uint16_t),
4758 if (!phba->vpi_ids) {
4759 kfree(phba->vpi_bmask);
4761 goto lpfc_sli_hba_setup_error;
4763 for (i = 0; i < phba->max_vpi; i++)
4764 phba->vpi_ids[i] = i;
4769 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
4770 rc = lpfc_sli_hbq_setup(phba);
4772 goto lpfc_sli_hba_setup_error;
4774 spin_lock_irq(&phba->hbalock);
4775 phba->sli.sli_flag |= LPFC_PROCESS_LA;
4776 spin_unlock_irq(&phba->hbalock);
4778 rc = lpfc_config_port_post(phba);
4780 goto lpfc_sli_hba_setup_error;
4784 lpfc_sli_hba_setup_error:
4785 phba->link_state = LPFC_HBA_ERROR;
4786 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4787 "0445 Firmware initialization failed\n");
4792 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
4793 * @phba: Pointer to HBA context object.
4794 * @mboxq: mailbox pointer.
4795 * This function issue a dump mailbox command to read config region
4796 * 23 and parse the records in the region and populate driver
4800 lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba)
4802 LPFC_MBOXQ_t *mboxq;
4803 struct lpfc_dmabuf *mp;
4804 struct lpfc_mqe *mqe;
4805 uint32_t data_length;
4808 /* Program the default value of vlan_id and fc_map */
4809 phba->valid_vlan = 0;
4810 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4811 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4812 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4814 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4818 mqe = &mboxq->u.mqe;
4819 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq)) {
4821 goto out_free_mboxq;
4824 mp = (struct lpfc_dmabuf *) mboxq->context1;
4825 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4827 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4828 "(%d):2571 Mailbox cmd x%x Status x%x "
4829 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4830 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4831 "CQ: x%x x%x x%x x%x\n",
4832 mboxq->vport ? mboxq->vport->vpi : 0,
4833 bf_get(lpfc_mqe_command, mqe),
4834 bf_get(lpfc_mqe_status, mqe),
4835 mqe->un.mb_words[0], mqe->un.mb_words[1],
4836 mqe->un.mb_words[2], mqe->un.mb_words[3],
4837 mqe->un.mb_words[4], mqe->un.mb_words[5],
4838 mqe->un.mb_words[6], mqe->un.mb_words[7],
4839 mqe->un.mb_words[8], mqe->un.mb_words[9],
4840 mqe->un.mb_words[10], mqe->un.mb_words[11],
4841 mqe->un.mb_words[12], mqe->un.mb_words[13],
4842 mqe->un.mb_words[14], mqe->un.mb_words[15],
4843 mqe->un.mb_words[16], mqe->un.mb_words[50],
4845 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
4846 mboxq->mcqe.trailer);
4849 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4852 goto out_free_mboxq;
4854 data_length = mqe->un.mb_words[5];
4855 if (data_length > DMP_RGN23_SIZE) {
4856 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4859 goto out_free_mboxq;
4862 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
4863 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4868 mempool_free(mboxq, phba->mbox_mem_pool);
4873 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
4874 * @phba: pointer to lpfc hba data structure.
4875 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
4876 * @vpd: pointer to the memory to hold resulting port vpd data.
4877 * @vpd_size: On input, the number of bytes allocated to @vpd.
4878 * On output, the number of data bytes in @vpd.
4880 * This routine executes a READ_REV SLI4 mailbox command. In
4881 * addition, this routine gets the port vpd data.
4885 * -ENOMEM - could not allocated memory.
4888 lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
4889 uint8_t *vpd, uint32_t *vpd_size)
4893 struct lpfc_dmabuf *dmabuf;
4894 struct lpfc_mqe *mqe;
4896 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4901 * Get a DMA buffer for the vpd data resulting from the READ_REV
4904 dma_size = *vpd_size;
4905 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, dma_size,
4906 &dmabuf->phys, GFP_KERNEL);
4907 if (!dmabuf->virt) {
4913 * The SLI4 implementation of READ_REV conflicts at word1,
4914 * bits 31:16 and SLI4 adds vpd functionality not present
4915 * in SLI3. This code corrects the conflicts.
4917 lpfc_read_rev(phba, mboxq);
4918 mqe = &mboxq->u.mqe;
4919 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
4920 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
4921 mqe->un.read_rev.word1 &= 0x0000FFFF;
4922 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
4923 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
4925 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4927 dma_free_coherent(&phba->pcidev->dev, dma_size,
4928 dmabuf->virt, dmabuf->phys);
4934 * The available vpd length cannot be bigger than the
4935 * DMA buffer passed to the port. Catch the less than
4936 * case and update the caller's size.
4938 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
4939 *vpd_size = mqe->un.read_rev.avail_vpd_len;
4941 memcpy(vpd, dmabuf->virt, *vpd_size);
4943 dma_free_coherent(&phba->pcidev->dev, dma_size,
4944 dmabuf->virt, dmabuf->phys);
4950 * lpfc_sli4_retrieve_pport_name - Retrieve SLI4 device physical port name
4951 * @phba: pointer to lpfc hba data structure.
4953 * This routine retrieves SLI4 device physical port name this PCI function
4958 * otherwise - failed to retrieve physical port name
4961 lpfc_sli4_retrieve_pport_name(struct lpfc_hba *phba)
4963 LPFC_MBOXQ_t *mboxq;
4964 struct lpfc_mbx_get_cntl_attributes *mbx_cntl_attr;
4965 struct lpfc_controller_attribute *cntl_attr;
4966 struct lpfc_mbx_get_port_name *get_port_name;
4967 void *virtaddr = NULL;
4968 uint32_t alloclen, reqlen;
4969 uint32_t shdr_status, shdr_add_status;
4970 union lpfc_sli4_cfg_shdr *shdr;
4971 char cport_name = 0;
4974 /* We assume nothing at this point */
4975 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
4976 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_NON;
4978 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4981 /* obtain link type and link number via READ_CONFIG */
4982 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
4983 lpfc_sli4_read_config(phba);
4984 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL)
4985 goto retrieve_ppname;
4987 /* obtain link type and link number via COMMON_GET_CNTL_ATTRIBUTES */
4988 reqlen = sizeof(struct lpfc_mbx_get_cntl_attributes);
4989 alloclen = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
4990 LPFC_MBOX_OPCODE_GET_CNTL_ATTRIBUTES, reqlen,
4991 LPFC_SLI4_MBX_NEMBED);
4992 if (alloclen < reqlen) {
4993 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4994 "3084 Allocated DMA memory size (%d) is "
4995 "less than the requested DMA memory size "
4996 "(%d)\n", alloclen, reqlen);
4998 goto out_free_mboxq;
5000 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5001 virtaddr = mboxq->sge_array->addr[0];
5002 mbx_cntl_attr = (struct lpfc_mbx_get_cntl_attributes *)virtaddr;
5003 shdr = &mbx_cntl_attr->cfg_shdr;
5004 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5005 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5006 if (shdr_status || shdr_add_status || rc) {
5007 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5008 "3085 Mailbox x%x (x%x/x%x) failed, "
5009 "rc:x%x, status:x%x, add_status:x%x\n",
5010 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5011 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
5012 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
5013 rc, shdr_status, shdr_add_status);
5015 goto out_free_mboxq;
5017 cntl_attr = &mbx_cntl_attr->cntl_attr;
5018 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
5019 phba->sli4_hba.lnk_info.lnk_tp =
5020 bf_get(lpfc_cntl_attr_lnk_type, cntl_attr);
5021 phba->sli4_hba.lnk_info.lnk_no =
5022 bf_get(lpfc_cntl_attr_lnk_numb, cntl_attr);
5023 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5024 "3086 lnk_type:%d, lnk_numb:%d\n",
5025 phba->sli4_hba.lnk_info.lnk_tp,
5026 phba->sli4_hba.lnk_info.lnk_no);
5029 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5030 LPFC_MBOX_OPCODE_GET_PORT_NAME,
5031 sizeof(struct lpfc_mbx_get_port_name) -
5032 sizeof(struct lpfc_sli4_cfg_mhdr),
5033 LPFC_SLI4_MBX_EMBED);
5034 get_port_name = &mboxq->u.mqe.un.get_port_name;
5035 shdr = (union lpfc_sli4_cfg_shdr *)&get_port_name->header.cfg_shdr;
5036 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_OPCODE_VERSION_1);
5037 bf_set(lpfc_mbx_get_port_name_lnk_type, &get_port_name->u.request,
5038 phba->sli4_hba.lnk_info.lnk_tp);
5039 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5040 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5041 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5042 if (shdr_status || shdr_add_status || rc) {
5043 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5044 "3087 Mailbox x%x (x%x/x%x) failed: "
5045 "rc:x%x, status:x%x, add_status:x%x\n",
5046 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5047 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
5048 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
5049 rc, shdr_status, shdr_add_status);
5051 goto out_free_mboxq;
5053 switch (phba->sli4_hba.lnk_info.lnk_no) {
5054 case LPFC_LINK_NUMBER_0:
5055 cport_name = bf_get(lpfc_mbx_get_port_name_name0,
5056 &get_port_name->u.response);
5057 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5059 case LPFC_LINK_NUMBER_1:
5060 cport_name = bf_get(lpfc_mbx_get_port_name_name1,
5061 &get_port_name->u.response);
5062 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5064 case LPFC_LINK_NUMBER_2:
5065 cport_name = bf_get(lpfc_mbx_get_port_name_name2,
5066 &get_port_name->u.response);
5067 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5069 case LPFC_LINK_NUMBER_3:
5070 cport_name = bf_get(lpfc_mbx_get_port_name_name3,
5071 &get_port_name->u.response);
5072 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5078 if (phba->sli4_hba.pport_name_sta == LPFC_SLI4_PPNAME_GET) {
5079 phba->Port[0] = cport_name;
5080 phba->Port[1] = '\0';
5081 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5082 "3091 SLI get port name: %s\n", phba->Port);
5086 if (rc != MBX_TIMEOUT) {
5087 if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
5088 lpfc_sli4_mbox_cmd_free(phba, mboxq);
5090 mempool_free(mboxq, phba->mbox_mem_pool);
5096 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
5097 * @phba: pointer to lpfc hba data structure.
5099 * This routine is called to explicitly arm the SLI4 device's completion and
5103 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
5107 lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM);
5108 lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM);
5110 if (phba->sli4_hba.fcp_cq) {
5112 lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[fcp_eqidx],
5114 } while (++fcp_eqidx < phba->cfg_fcp_io_channel);
5118 lpfc_sli4_cq_release(phba->sli4_hba.oas_cq, LPFC_QUEUE_REARM);
5120 if (phba->sli4_hba.hba_eq) {
5121 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel;
5123 lpfc_sli4_eq_release(phba->sli4_hba.hba_eq[fcp_eqidx],
5128 lpfc_sli4_eq_release(phba->sli4_hba.fof_eq, LPFC_QUEUE_REARM);
5132 * lpfc_sli4_get_avail_extnt_rsrc - Get available resource extent count.
5133 * @phba: Pointer to HBA context object.
5134 * @type: The resource extent type.
5135 * @extnt_count: buffer to hold port available extent count.
5136 * @extnt_size: buffer to hold element count per extent.
5138 * This function calls the port and retrievs the number of available
5139 * extents and their size for a particular extent type.
5141 * Returns: 0 if successful. Nonzero otherwise.
5144 lpfc_sli4_get_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type,
5145 uint16_t *extnt_count, uint16_t *extnt_size)
5150 struct lpfc_mbx_get_rsrc_extent_info *rsrc_info;
5153 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5157 /* Find out how many extents are available for this resource type */
5158 length = (sizeof(struct lpfc_mbx_get_rsrc_extent_info) -
5159 sizeof(struct lpfc_sli4_cfg_mhdr));
5160 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5161 LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO,
5162 length, LPFC_SLI4_MBX_EMBED);
5164 /* Send an extents count of 0 - the GET doesn't use it. */
5165 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5166 LPFC_SLI4_MBX_EMBED);
5172 if (!phba->sli4_hba.intr_enable)
5173 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5175 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5176 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5183 rsrc_info = &mbox->u.mqe.un.rsrc_extent_info;
5184 if (bf_get(lpfc_mbox_hdr_status,
5185 &rsrc_info->header.cfg_shdr.response)) {
5186 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5187 "2930 Failed to get resource extents "
5188 "Status 0x%x Add'l Status 0x%x\n",
5189 bf_get(lpfc_mbox_hdr_status,
5190 &rsrc_info->header.cfg_shdr.response),
5191 bf_get(lpfc_mbox_hdr_add_status,
5192 &rsrc_info->header.cfg_shdr.response));
5197 *extnt_count = bf_get(lpfc_mbx_get_rsrc_extent_info_cnt,
5199 *extnt_size = bf_get(lpfc_mbx_get_rsrc_extent_info_size,
5202 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5203 "3162 Retrieved extents type-%d from port: count:%d, "
5204 "size:%d\n", type, *extnt_count, *extnt_size);
5207 mempool_free(mbox, phba->mbox_mem_pool);
5212 * lpfc_sli4_chk_avail_extnt_rsrc - Check for available SLI4 resource extents.
5213 * @phba: Pointer to HBA context object.
5214 * @type: The extent type to check.
5216 * This function reads the current available extents from the port and checks
5217 * if the extent count or extent size has changed since the last access.
5218 * Callers use this routine post port reset to understand if there is a
5219 * extent reprovisioning requirement.
5222 * -Error: error indicates problem.
5223 * 1: Extent count or size has changed.
5227 lpfc_sli4_chk_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type)
5229 uint16_t curr_ext_cnt, rsrc_ext_cnt;
5230 uint16_t size_diff, rsrc_ext_size;
5232 struct lpfc_rsrc_blks *rsrc_entry;
5233 struct list_head *rsrc_blk_list = NULL;
5237 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5244 case LPFC_RSC_TYPE_FCOE_RPI:
5245 rsrc_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5247 case LPFC_RSC_TYPE_FCOE_VPI:
5248 rsrc_blk_list = &phba->lpfc_vpi_blk_list;
5250 case LPFC_RSC_TYPE_FCOE_XRI:
5251 rsrc_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5253 case LPFC_RSC_TYPE_FCOE_VFI:
5254 rsrc_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5260 list_for_each_entry(rsrc_entry, rsrc_blk_list, list) {
5262 if (rsrc_entry->rsrc_size != rsrc_ext_size)
5266 if (curr_ext_cnt != rsrc_ext_cnt || size_diff != 0)
5273 * lpfc_sli4_cfg_post_extnts -
5274 * @phba: Pointer to HBA context object.
5275 * @extnt_cnt - number of available extents.
5276 * @type - the extent type (rpi, xri, vfi, vpi).
5277 * @emb - buffer to hold either MBX_EMBED or MBX_NEMBED operation.
5278 * @mbox - pointer to the caller's allocated mailbox structure.
5280 * This function executes the extents allocation request. It also
5281 * takes care of the amount of memory needed to allocate or get the
5282 * allocated extents. It is the caller's responsibility to evaluate
5286 * -Error: Error value describes the condition found.
5290 lpfc_sli4_cfg_post_extnts(struct lpfc_hba *phba, uint16_t extnt_cnt,
5291 uint16_t type, bool *emb, LPFC_MBOXQ_t *mbox)
5296 uint32_t alloc_len, mbox_tmo;
5298 /* Calculate the total requested length of the dma memory */
5299 req_len = extnt_cnt * sizeof(uint16_t);
5302 * Calculate the size of an embedded mailbox. The uint32_t
5303 * accounts for extents-specific word.
5305 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
5309 * Presume the allocation and response will fit into an embedded
5310 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5312 *emb = LPFC_SLI4_MBX_EMBED;
5313 if (req_len > emb_len) {
5314 req_len = extnt_cnt * sizeof(uint16_t) +
5315 sizeof(union lpfc_sli4_cfg_shdr) +
5317 *emb = LPFC_SLI4_MBX_NEMBED;
5320 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5321 LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT,
5323 if (alloc_len < req_len) {
5324 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5325 "2982 Allocated DMA memory size (x%x) is "
5326 "less than the requested DMA memory "
5327 "size (x%x)\n", alloc_len, req_len);
5330 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, extnt_cnt, type, *emb);
5334 if (!phba->sli4_hba.intr_enable)
5335 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5337 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5338 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5347 * lpfc_sli4_alloc_extent - Allocate an SLI4 resource extent.
5348 * @phba: Pointer to HBA context object.
5349 * @type: The resource extent type to allocate.
5351 * This function allocates the number of elements for the specified
5355 lpfc_sli4_alloc_extent(struct lpfc_hba *phba, uint16_t type)
5358 uint16_t rsrc_id_cnt, rsrc_cnt, rsrc_size;
5359 uint16_t rsrc_id, rsrc_start, j, k;
5362 unsigned long longs;
5363 unsigned long *bmask;
5364 struct lpfc_rsrc_blks *rsrc_blks;
5367 struct lpfc_id_range *id_array = NULL;
5368 void *virtaddr = NULL;
5369 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5370 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5371 struct list_head *ext_blk_list;
5373 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5379 if ((rsrc_cnt == 0) || (rsrc_size == 0)) {
5380 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5381 "3009 No available Resource Extents "
5382 "for resource type 0x%x: Count: 0x%x, "
5383 "Size 0x%x\n", type, rsrc_cnt,
5388 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_INIT | LOG_SLI,
5389 "2903 Post resource extents type-0x%x: "
5390 "count:%d, size %d\n", type, rsrc_cnt, rsrc_size);
5392 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5396 rc = lpfc_sli4_cfg_post_extnts(phba, rsrc_cnt, type, &emb, mbox);
5403 * Figure out where the response is located. Then get local pointers
5404 * to the response data. The port does not guarantee to respond to
5405 * all extents counts request so update the local variable with the
5406 * allocated count from the port.
5408 if (emb == LPFC_SLI4_MBX_EMBED) {
5409 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
5410 id_array = &rsrc_ext->u.rsp.id[0];
5411 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
5413 virtaddr = mbox->sge_array->addr[0];
5414 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
5415 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
5416 id_array = &n_rsrc->id;
5419 longs = ((rsrc_cnt * rsrc_size) + BITS_PER_LONG - 1) / BITS_PER_LONG;
5420 rsrc_id_cnt = rsrc_cnt * rsrc_size;
5423 * Based on the resource size and count, correct the base and max
5426 length = sizeof(struct lpfc_rsrc_blks);
5428 case LPFC_RSC_TYPE_FCOE_RPI:
5429 phba->sli4_hba.rpi_bmask = kzalloc(longs *
5430 sizeof(unsigned long),
5432 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5436 phba->sli4_hba.rpi_ids = kzalloc(rsrc_id_cnt *
5439 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5440 kfree(phba->sli4_hba.rpi_bmask);
5446 * The next_rpi was initialized with the maximum available
5447 * count but the port may allocate a smaller number. Catch
5448 * that case and update the next_rpi.
5450 phba->sli4_hba.next_rpi = rsrc_id_cnt;
5452 /* Initialize local ptrs for common extent processing later. */
5453 bmask = phba->sli4_hba.rpi_bmask;
5454 ids = phba->sli4_hba.rpi_ids;
5455 ext_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5457 case LPFC_RSC_TYPE_FCOE_VPI:
5458 phba->vpi_bmask = kzalloc(longs *
5459 sizeof(unsigned long),
5461 if (unlikely(!phba->vpi_bmask)) {
5465 phba->vpi_ids = kzalloc(rsrc_id_cnt *
5468 if (unlikely(!phba->vpi_ids)) {
5469 kfree(phba->vpi_bmask);
5474 /* Initialize local ptrs for common extent processing later. */
5475 bmask = phba->vpi_bmask;
5476 ids = phba->vpi_ids;
5477 ext_blk_list = &phba->lpfc_vpi_blk_list;
5479 case LPFC_RSC_TYPE_FCOE_XRI:
5480 phba->sli4_hba.xri_bmask = kzalloc(longs *
5481 sizeof(unsigned long),
5483 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5487 phba->sli4_hba.max_cfg_param.xri_used = 0;
5488 phba->sli4_hba.xri_ids = kzalloc(rsrc_id_cnt *
5491 if (unlikely(!phba->sli4_hba.xri_ids)) {
5492 kfree(phba->sli4_hba.xri_bmask);
5497 /* Initialize local ptrs for common extent processing later. */
5498 bmask = phba->sli4_hba.xri_bmask;
5499 ids = phba->sli4_hba.xri_ids;
5500 ext_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5502 case LPFC_RSC_TYPE_FCOE_VFI:
5503 phba->sli4_hba.vfi_bmask = kzalloc(longs *
5504 sizeof(unsigned long),
5506 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5510 phba->sli4_hba.vfi_ids = kzalloc(rsrc_id_cnt *
5513 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5514 kfree(phba->sli4_hba.vfi_bmask);
5519 /* Initialize local ptrs for common extent processing later. */
5520 bmask = phba->sli4_hba.vfi_bmask;
5521 ids = phba->sli4_hba.vfi_ids;
5522 ext_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5525 /* Unsupported Opcode. Fail call. */
5529 ext_blk_list = NULL;
5534 * Complete initializing the extent configuration with the
5535 * allocated ids assigned to this function. The bitmask serves
5536 * as an index into the array and manages the available ids. The
5537 * array just stores the ids communicated to the port via the wqes.
5539 for (i = 0, j = 0, k = 0; i < rsrc_cnt; i++) {
5541 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_0,
5544 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_1,
5547 rsrc_blks = kzalloc(length, GFP_KERNEL);
5548 if (unlikely(!rsrc_blks)) {
5554 rsrc_blks->rsrc_start = rsrc_id;
5555 rsrc_blks->rsrc_size = rsrc_size;
5556 list_add_tail(&rsrc_blks->list, ext_blk_list);
5557 rsrc_start = rsrc_id;
5558 if ((type == LPFC_RSC_TYPE_FCOE_XRI) && (j == 0))
5559 phba->sli4_hba.scsi_xri_start = rsrc_start +
5560 lpfc_sli4_get_els_iocb_cnt(phba);
5562 while (rsrc_id < (rsrc_start + rsrc_size)) {
5567 /* Entire word processed. Get next word.*/
5572 lpfc_sli4_mbox_cmd_free(phba, mbox);
5577 * lpfc_sli4_dealloc_extent - Deallocate an SLI4 resource extent.
5578 * @phba: Pointer to HBA context object.
5579 * @type: the extent's type.
5581 * This function deallocates all extents of a particular resource type.
5582 * SLI4 does not allow for deallocating a particular extent range. It
5583 * is the caller's responsibility to release all kernel memory resources.
5586 lpfc_sli4_dealloc_extent(struct lpfc_hba *phba, uint16_t type)
5589 uint32_t length, mbox_tmo = 0;
5591 struct lpfc_mbx_dealloc_rsrc_extents *dealloc_rsrc;
5592 struct lpfc_rsrc_blks *rsrc_blk, *rsrc_blk_next;
5594 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5599 * This function sends an embedded mailbox because it only sends the
5600 * the resource type. All extents of this type are released by the
5603 length = (sizeof(struct lpfc_mbx_dealloc_rsrc_extents) -
5604 sizeof(struct lpfc_sli4_cfg_mhdr));
5605 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5606 LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT,
5607 length, LPFC_SLI4_MBX_EMBED);
5609 /* Send an extents count of 0 - the dealloc doesn't use it. */
5610 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5611 LPFC_SLI4_MBX_EMBED);
5616 if (!phba->sli4_hba.intr_enable)
5617 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5619 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5620 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5627 dealloc_rsrc = &mbox->u.mqe.un.dealloc_rsrc_extents;
5628 if (bf_get(lpfc_mbox_hdr_status,
5629 &dealloc_rsrc->header.cfg_shdr.response)) {
5630 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5631 "2919 Failed to release resource extents "
5632 "for type %d - Status 0x%x Add'l Status 0x%x. "
5633 "Resource memory not released.\n",
5635 bf_get(lpfc_mbox_hdr_status,
5636 &dealloc_rsrc->header.cfg_shdr.response),
5637 bf_get(lpfc_mbox_hdr_add_status,
5638 &dealloc_rsrc->header.cfg_shdr.response));
5643 /* Release kernel memory resources for the specific type. */
5645 case LPFC_RSC_TYPE_FCOE_VPI:
5646 kfree(phba->vpi_bmask);
5647 kfree(phba->vpi_ids);
5648 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5649 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5650 &phba->lpfc_vpi_blk_list, list) {
5651 list_del_init(&rsrc_blk->list);
5654 phba->sli4_hba.max_cfg_param.vpi_used = 0;
5656 case LPFC_RSC_TYPE_FCOE_XRI:
5657 kfree(phba->sli4_hba.xri_bmask);
5658 kfree(phba->sli4_hba.xri_ids);
5659 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5660 &phba->sli4_hba.lpfc_xri_blk_list, list) {
5661 list_del_init(&rsrc_blk->list);
5665 case LPFC_RSC_TYPE_FCOE_VFI:
5666 kfree(phba->sli4_hba.vfi_bmask);
5667 kfree(phba->sli4_hba.vfi_ids);
5668 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5669 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5670 &phba->sli4_hba.lpfc_vfi_blk_list, list) {
5671 list_del_init(&rsrc_blk->list);
5675 case LPFC_RSC_TYPE_FCOE_RPI:
5676 /* RPI bitmask and physical id array are cleaned up earlier. */
5677 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5678 &phba->sli4_hba.lpfc_rpi_blk_list, list) {
5679 list_del_init(&rsrc_blk->list);
5687 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5690 mempool_free(mbox, phba->mbox_mem_pool);
5695 * lpfc_sli4_alloc_resource_identifiers - Allocate all SLI4 resource extents.
5696 * @phba: Pointer to HBA context object.
5698 * This function allocates all SLI4 resource identifiers.
5701 lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba *phba)
5703 int i, rc, error = 0;
5704 uint16_t count, base;
5705 unsigned long longs;
5707 if (!phba->sli4_hba.rpi_hdrs_in_use)
5708 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
5709 if (phba->sli4_hba.extents_in_use) {
5711 * The port supports resource extents. The XRI, VPI, VFI, RPI
5712 * resource extent count must be read and allocated before
5713 * provisioning the resource id arrays.
5715 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
5716 LPFC_IDX_RSRC_RDY) {
5718 * Extent-based resources are set - the driver could
5719 * be in a port reset. Figure out if any corrective
5720 * actions need to be taken.
5722 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5723 LPFC_RSC_TYPE_FCOE_VFI);
5726 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5727 LPFC_RSC_TYPE_FCOE_VPI);
5730 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5731 LPFC_RSC_TYPE_FCOE_XRI);
5734 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5735 LPFC_RSC_TYPE_FCOE_RPI);
5740 * It's possible that the number of resources
5741 * provided to this port instance changed between
5742 * resets. Detect this condition and reallocate
5743 * resources. Otherwise, there is no action.
5746 lpfc_printf_log(phba, KERN_INFO,
5747 LOG_MBOX | LOG_INIT,
5748 "2931 Detected extent resource "
5749 "change. Reallocating all "
5751 rc = lpfc_sli4_dealloc_extent(phba,
5752 LPFC_RSC_TYPE_FCOE_VFI);
5753 rc = lpfc_sli4_dealloc_extent(phba,
5754 LPFC_RSC_TYPE_FCOE_VPI);
5755 rc = lpfc_sli4_dealloc_extent(phba,
5756 LPFC_RSC_TYPE_FCOE_XRI);
5757 rc = lpfc_sli4_dealloc_extent(phba,
5758 LPFC_RSC_TYPE_FCOE_RPI);
5763 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
5767 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
5771 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
5775 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
5778 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
5783 * The port does not support resource extents. The XRI, VPI,
5784 * VFI, RPI resource ids were determined from READ_CONFIG.
5785 * Just allocate the bitmasks and provision the resource id
5786 * arrays. If a port reset is active, the resources don't
5787 * need any action - just exit.
5789 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
5790 LPFC_IDX_RSRC_RDY) {
5791 lpfc_sli4_dealloc_resource_identifiers(phba);
5792 lpfc_sli4_remove_rpis(phba);
5795 count = phba->sli4_hba.max_cfg_param.max_rpi;
5797 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5798 "3279 Invalid provisioning of "
5803 base = phba->sli4_hba.max_cfg_param.rpi_base;
5804 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5805 phba->sli4_hba.rpi_bmask = kzalloc(longs *
5806 sizeof(unsigned long),
5808 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5812 phba->sli4_hba.rpi_ids = kzalloc(count *
5815 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5817 goto free_rpi_bmask;
5820 for (i = 0; i < count; i++)
5821 phba->sli4_hba.rpi_ids[i] = base + i;
5824 count = phba->sli4_hba.max_cfg_param.max_vpi;
5826 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5827 "3280 Invalid provisioning of "
5832 base = phba->sli4_hba.max_cfg_param.vpi_base;
5833 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5834 phba->vpi_bmask = kzalloc(longs *
5835 sizeof(unsigned long),
5837 if (unlikely(!phba->vpi_bmask)) {
5841 phba->vpi_ids = kzalloc(count *
5844 if (unlikely(!phba->vpi_ids)) {
5846 goto free_vpi_bmask;
5849 for (i = 0; i < count; i++)
5850 phba->vpi_ids[i] = base + i;
5853 count = phba->sli4_hba.max_cfg_param.max_xri;
5855 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5856 "3281 Invalid provisioning of "
5861 base = phba->sli4_hba.max_cfg_param.xri_base;
5862 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5863 phba->sli4_hba.xri_bmask = kzalloc(longs *
5864 sizeof(unsigned long),
5866 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5870 phba->sli4_hba.max_cfg_param.xri_used = 0;
5871 phba->sli4_hba.xri_ids = kzalloc(count *
5874 if (unlikely(!phba->sli4_hba.xri_ids)) {
5876 goto free_xri_bmask;
5879 for (i = 0; i < count; i++)
5880 phba->sli4_hba.xri_ids[i] = base + i;
5883 count = phba->sli4_hba.max_cfg_param.max_vfi;
5885 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5886 "3282 Invalid provisioning of "
5891 base = phba->sli4_hba.max_cfg_param.vfi_base;
5892 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5893 phba->sli4_hba.vfi_bmask = kzalloc(longs *
5894 sizeof(unsigned long),
5896 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5900 phba->sli4_hba.vfi_ids = kzalloc(count *
5903 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5905 goto free_vfi_bmask;
5908 for (i = 0; i < count; i++)
5909 phba->sli4_hba.vfi_ids[i] = base + i;
5912 * Mark all resources ready. An HBA reset doesn't need
5913 * to reset the initialization.
5915 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
5921 kfree(phba->sli4_hba.vfi_bmask);
5923 kfree(phba->sli4_hba.xri_ids);
5925 kfree(phba->sli4_hba.xri_bmask);
5927 kfree(phba->vpi_ids);
5929 kfree(phba->vpi_bmask);
5931 kfree(phba->sli4_hba.rpi_ids);
5933 kfree(phba->sli4_hba.rpi_bmask);
5939 * lpfc_sli4_dealloc_resource_identifiers - Deallocate all SLI4 resource extents.
5940 * @phba: Pointer to HBA context object.
5942 * This function allocates the number of elements for the specified
5946 lpfc_sli4_dealloc_resource_identifiers(struct lpfc_hba *phba)
5948 if (phba->sli4_hba.extents_in_use) {
5949 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
5950 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
5951 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
5952 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
5954 kfree(phba->vpi_bmask);
5955 phba->sli4_hba.max_cfg_param.vpi_used = 0;
5956 kfree(phba->vpi_ids);
5957 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5958 kfree(phba->sli4_hba.xri_bmask);
5959 kfree(phba->sli4_hba.xri_ids);
5960 kfree(phba->sli4_hba.vfi_bmask);
5961 kfree(phba->sli4_hba.vfi_ids);
5962 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5963 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5970 * lpfc_sli4_get_allocated_extnts - Get the port's allocated extents.
5971 * @phba: Pointer to HBA context object.
5972 * @type: The resource extent type.
5973 * @extnt_count: buffer to hold port extent count response
5974 * @extnt_size: buffer to hold port extent size response.
5976 * This function calls the port to read the host allocated extents
5977 * for a particular type.
5980 lpfc_sli4_get_allocated_extnts(struct lpfc_hba *phba, uint16_t type,
5981 uint16_t *extnt_cnt, uint16_t *extnt_size)
5985 uint16_t curr_blks = 0;
5986 uint32_t req_len, emb_len;
5987 uint32_t alloc_len, mbox_tmo;
5988 struct list_head *blk_list_head;
5989 struct lpfc_rsrc_blks *rsrc_blk;
5991 void *virtaddr = NULL;
5992 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5993 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5994 union lpfc_sli4_cfg_shdr *shdr;
5997 case LPFC_RSC_TYPE_FCOE_VPI:
5998 blk_list_head = &phba->lpfc_vpi_blk_list;
6000 case LPFC_RSC_TYPE_FCOE_XRI:
6001 blk_list_head = &phba->sli4_hba.lpfc_xri_blk_list;
6003 case LPFC_RSC_TYPE_FCOE_VFI:
6004 blk_list_head = &phba->sli4_hba.lpfc_vfi_blk_list;
6006 case LPFC_RSC_TYPE_FCOE_RPI:
6007 blk_list_head = &phba->sli4_hba.lpfc_rpi_blk_list;
6013 /* Count the number of extents currently allocatd for this type. */
6014 list_for_each_entry(rsrc_blk, blk_list_head, list) {
6015 if (curr_blks == 0) {
6017 * The GET_ALLOCATED mailbox does not return the size,
6018 * just the count. The size should be just the size
6019 * stored in the current allocated block and all sizes
6020 * for an extent type are the same so set the return
6023 *extnt_size = rsrc_blk->rsrc_size;
6029 * Calculate the size of an embedded mailbox. The uint32_t
6030 * accounts for extents-specific word.
6032 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
6036 * Presume the allocation and response will fit into an embedded
6037 * mailbox. If not true, reconfigure to a non-embedded mailbox.
6039 emb = LPFC_SLI4_MBX_EMBED;
6041 if (req_len > emb_len) {
6042 req_len = curr_blks * sizeof(uint16_t) +
6043 sizeof(union lpfc_sli4_cfg_shdr) +
6045 emb = LPFC_SLI4_MBX_NEMBED;
6048 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6051 memset(mbox, 0, sizeof(LPFC_MBOXQ_t));
6053 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6054 LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT,
6056 if (alloc_len < req_len) {
6057 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6058 "2983 Allocated DMA memory size (x%x) is "
6059 "less than the requested DMA memory "
6060 "size (x%x)\n", alloc_len, req_len);
6064 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, curr_blks, type, emb);
6070 if (!phba->sli4_hba.intr_enable)
6071 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
6073 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
6074 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
6083 * Figure out where the response is located. Then get local pointers
6084 * to the response data. The port does not guarantee to respond to
6085 * all extents counts request so update the local variable with the
6086 * allocated count from the port.
6088 if (emb == LPFC_SLI4_MBX_EMBED) {
6089 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
6090 shdr = &rsrc_ext->header.cfg_shdr;
6091 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
6093 virtaddr = mbox->sge_array->addr[0];
6094 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
6095 shdr = &n_rsrc->cfg_shdr;
6096 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
6099 if (bf_get(lpfc_mbox_hdr_status, &shdr->response)) {
6100 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
6101 "2984 Failed to read allocated resources "
6102 "for type %d - Status 0x%x Add'l Status 0x%x.\n",
6104 bf_get(lpfc_mbox_hdr_status, &shdr->response),
6105 bf_get(lpfc_mbox_hdr_add_status, &shdr->response));
6110 lpfc_sli4_mbox_cmd_free(phba, mbox);
6115 * lpfc_sli4_repost_els_sgl_list - Repsot the els buffers sgl pages as block
6116 * @phba: pointer to lpfc hba data structure.
6118 * This routine walks the list of els buffers that have been allocated and
6119 * repost them to the port by using SGL block post. This is needed after a
6120 * pci_function_reset/warm_start or start. It attempts to construct blocks
6121 * of els buffer sgls which contains contiguous xris and uses the non-embedded
6122 * SGL block post mailbox commands to post them to the port. For single els
6123 * buffer sgl with non-contiguous xri, if any, it shall use embedded SGL post
6124 * mailbox command for posting.
6126 * Returns: 0 = success, non-zero failure.
6129 lpfc_sli4_repost_els_sgl_list(struct lpfc_hba *phba)
6131 struct lpfc_sglq *sglq_entry = NULL;
6132 struct lpfc_sglq *sglq_entry_next = NULL;
6133 struct lpfc_sglq *sglq_entry_first = NULL;
6134 int status, total_cnt, post_cnt = 0, num_posted = 0, block_cnt = 0;
6135 int last_xritag = NO_XRI;
6136 struct lpfc_sli_ring *pring;
6137 LIST_HEAD(prep_sgl_list);
6138 LIST_HEAD(blck_sgl_list);
6139 LIST_HEAD(allc_sgl_list);
6140 LIST_HEAD(post_sgl_list);
6141 LIST_HEAD(free_sgl_list);
6143 pring = &phba->sli.ring[LPFC_ELS_RING];
6144 spin_lock_irq(&phba->hbalock);
6145 spin_lock(&pring->ring_lock);
6146 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &allc_sgl_list);
6147 spin_unlock(&pring->ring_lock);
6148 spin_unlock_irq(&phba->hbalock);
6150 total_cnt = phba->sli4_hba.els_xri_cnt;
6151 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
6152 &allc_sgl_list, list) {
6153 list_del_init(&sglq_entry->list);
6155 if ((last_xritag != NO_XRI) &&
6156 (sglq_entry->sli4_xritag != last_xritag + 1)) {
6157 /* a hole in xri block, form a sgl posting block */
6158 list_splice_init(&prep_sgl_list, &blck_sgl_list);
6159 post_cnt = block_cnt - 1;
6160 /* prepare list for next posting block */
6161 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6164 /* prepare list for next posting block */
6165 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6166 /* enough sgls for non-embed sgl mbox command */
6167 if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
6168 list_splice_init(&prep_sgl_list,
6170 post_cnt = block_cnt;
6176 /* keep track of last sgl's xritag */
6177 last_xritag = sglq_entry->sli4_xritag;
6179 /* end of repost sgl list condition for els buffers */
6180 if (num_posted == phba->sli4_hba.els_xri_cnt) {
6181 if (post_cnt == 0) {
6182 list_splice_init(&prep_sgl_list,
6184 post_cnt = block_cnt;
6185 } else if (block_cnt == 1) {
6186 status = lpfc_sli4_post_sgl(phba,
6187 sglq_entry->phys, 0,
6188 sglq_entry->sli4_xritag);
6190 /* successful, put sgl to posted list */
6191 list_add_tail(&sglq_entry->list,
6194 /* Failure, put sgl to free list */
6195 lpfc_printf_log(phba, KERN_WARNING,
6197 "3159 Failed to post els "
6198 "sgl, xritag:x%x\n",
6199 sglq_entry->sli4_xritag);
6200 list_add_tail(&sglq_entry->list,
6207 /* continue until a nembed page worth of sgls */
6211 /* post the els buffer list sgls as a block */
6212 status = lpfc_sli4_post_els_sgl_list(phba, &blck_sgl_list,
6216 /* success, put sgl list to posted sgl list */
6217 list_splice_init(&blck_sgl_list, &post_sgl_list);
6219 /* Failure, put sgl list to free sgl list */
6220 sglq_entry_first = list_first_entry(&blck_sgl_list,
6223 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6224 "3160 Failed to post els sgl-list, "
6226 sglq_entry_first->sli4_xritag,
6227 (sglq_entry_first->sli4_xritag +
6229 list_splice_init(&blck_sgl_list, &free_sgl_list);
6230 total_cnt -= post_cnt;
6233 /* don't reset xirtag due to hole in xri block */
6235 last_xritag = NO_XRI;
6237 /* reset els sgl post count for next round of posting */
6240 /* update the number of XRIs posted for ELS */
6241 phba->sli4_hba.els_xri_cnt = total_cnt;
6243 /* free the els sgls failed to post */
6244 lpfc_free_sgl_list(phba, &free_sgl_list);
6246 /* push els sgls posted to the availble list */
6247 if (!list_empty(&post_sgl_list)) {
6248 spin_lock_irq(&phba->hbalock);
6249 spin_lock(&pring->ring_lock);
6250 list_splice_init(&post_sgl_list,
6251 &phba->sli4_hba.lpfc_sgl_list);
6252 spin_unlock(&pring->ring_lock);
6253 spin_unlock_irq(&phba->hbalock);
6255 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6256 "3161 Failure to post els sgl to port.\n");
6263 * lpfc_sli4_hba_setup - SLI4 device intialization PCI function
6264 * @phba: Pointer to HBA context object.
6266 * This function is the main SLI4 device intialization PCI function. This
6267 * function is called by the HBA intialization code, HBA reset code and
6268 * HBA error attention handler code. Caller is not required to hold any
6272 lpfc_sli4_hba_setup(struct lpfc_hba *phba)
6275 LPFC_MBOXQ_t *mboxq;
6276 struct lpfc_mqe *mqe;
6279 uint32_t ftr_rsp = 0;
6280 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
6281 struct lpfc_vport *vport = phba->pport;
6282 struct lpfc_dmabuf *mp;
6284 /* Perform a PCI function reset to start from clean */
6285 rc = lpfc_pci_function_reset(phba);
6289 /* Check the HBA Host Status Register for readyness */
6290 rc = lpfc_sli4_post_status_check(phba);
6294 spin_lock_irq(&phba->hbalock);
6295 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
6296 spin_unlock_irq(&phba->hbalock);
6300 * Allocate a single mailbox container for initializing the
6303 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6307 /* Issue READ_REV to collect vpd and FW information. */
6308 vpd_size = SLI4_PAGE_SIZE;
6309 vpd = kzalloc(vpd_size, GFP_KERNEL);
6315 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
6321 mqe = &mboxq->u.mqe;
6322 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
6323 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev))
6324 phba->hba_flag |= HBA_FCOE_MODE;
6326 phba->hba_flag &= ~HBA_FCOE_MODE;
6328 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
6330 phba->hba_flag |= HBA_FIP_SUPPORT;
6332 phba->hba_flag &= ~HBA_FIP_SUPPORT;
6334 phba->hba_flag &= ~HBA_FCP_IOQ_FLUSH;
6336 if (phba->sli_rev != LPFC_SLI_REV4) {
6337 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6338 "0376 READ_REV Error. SLI Level %d "
6339 "FCoE enabled %d\n",
6340 phba->sli_rev, phba->hba_flag & HBA_FCOE_MODE);
6347 * Continue initialization with default values even if driver failed
6348 * to read FCoE param config regions, only read parameters if the
6351 if (phba->hba_flag & HBA_FCOE_MODE &&
6352 lpfc_sli4_read_fcoe_params(phba))
6353 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_INIT,
6354 "2570 Failed to read FCoE parameters\n");
6357 * Retrieve sli4 device physical port name, failure of doing it
6358 * is considered as non-fatal.
6360 rc = lpfc_sli4_retrieve_pport_name(phba);
6362 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6363 "3080 Successful retrieving SLI4 device "
6364 "physical port name: %s.\n", phba->Port);
6367 * Evaluate the read rev and vpd data. Populate the driver
6368 * state with the results. If this routine fails, the failure
6369 * is not fatal as the driver will use generic values.
6371 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
6372 if (unlikely(!rc)) {
6373 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6374 "0377 Error %d parsing vpd. "
6375 "Using defaults.\n", rc);
6380 /* Save information as VPD data */
6381 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
6382 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
6383 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
6384 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
6386 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
6388 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
6390 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
6392 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
6393 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
6394 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
6395 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
6396 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
6397 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
6398 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6399 "(%d):0380 READ_REV Status x%x "
6400 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
6401 mboxq->vport ? mboxq->vport->vpi : 0,
6402 bf_get(lpfc_mqe_status, mqe),
6403 phba->vpd.rev.opFwName,
6404 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
6405 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
6407 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */
6408 rc = (phba->sli4_hba.max_cfg_param.max_xri >> 3);
6409 if (phba->pport->cfg_lun_queue_depth > rc) {
6410 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6411 "3362 LUN queue depth changed from %d to %d\n",
6412 phba->pport->cfg_lun_queue_depth, rc);
6413 phba->pport->cfg_lun_queue_depth = rc;
6418 * Discover the port's supported feature set and match it against the
6421 lpfc_request_features(phba, mboxq);
6422 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6429 * The port must support FCP initiator mode as this is the
6430 * only mode running in the host.
6432 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
6433 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6434 "0378 No support for fcpi mode.\n");
6437 if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh, &mqe->un.req_ftrs))
6438 phba->sli3_options |= LPFC_SLI4_PERFH_ENABLED;
6440 phba->sli3_options &= ~LPFC_SLI4_PERFH_ENABLED;
6442 * If the port cannot support the host's requested features
6443 * then turn off the global config parameters to disable the
6444 * feature in the driver. This is not a fatal error.
6446 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
6447 if (phba->cfg_enable_bg) {
6448 if (bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))
6449 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
6454 if (phba->max_vpi && phba->cfg_enable_npiv &&
6455 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6459 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6460 "0379 Feature Mismatch Data: x%08x %08x "
6461 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
6462 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
6463 phba->cfg_enable_npiv, phba->max_vpi);
6464 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
6465 phba->cfg_enable_bg = 0;
6466 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6467 phba->cfg_enable_npiv = 0;
6470 /* These SLI3 features are assumed in SLI4 */
6471 spin_lock_irq(&phba->hbalock);
6472 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
6473 spin_unlock_irq(&phba->hbalock);
6476 * Allocate all resources (xri,rpi,vpi,vfi) now. Subsequent
6477 * calls depends on these resources to complete port setup.
6479 rc = lpfc_sli4_alloc_resource_identifiers(phba);
6481 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6482 "2920 Failed to alloc Resource IDs "
6487 /* Read the port's service parameters. */
6488 rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
6490 phba->link_state = LPFC_HBA_ERROR;
6495 mboxq->vport = vport;
6496 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6497 mp = (struct lpfc_dmabuf *) mboxq->context1;
6498 if (rc == MBX_SUCCESS) {
6499 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
6504 * This memory was allocated by the lpfc_read_sparam routine. Release
6505 * it to the mbuf pool.
6507 lpfc_mbuf_free(phba, mp->virt, mp->phys);
6509 mboxq->context1 = NULL;
6511 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6512 "0382 READ_SPARAM command failed "
6513 "status %d, mbxStatus x%x\n",
6514 rc, bf_get(lpfc_mqe_status, mqe));
6515 phba->link_state = LPFC_HBA_ERROR;
6520 lpfc_update_vport_wwn(vport);
6522 /* Update the fc_host data structures with new wwn. */
6523 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
6524 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
6526 /* update host els and scsi xri-sgl sizes and mappings */
6527 rc = lpfc_sli4_xri_sgl_update(phba);
6529 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6530 "1400 Failed to update xri-sgl size and "
6531 "mapping: %d\n", rc);
6535 /* register the els sgl pool to the port */
6536 rc = lpfc_sli4_repost_els_sgl_list(phba);
6538 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6539 "0582 Error %d during els sgl post "
6545 /* register the allocated scsi sgl pool to the port */
6546 rc = lpfc_sli4_repost_scsi_sgl_list(phba);
6548 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6549 "0383 Error %d during scsi sgl post "
6551 /* Some Scsi buffers were moved to the abort scsi list */
6552 /* A pci function reset will repost them */
6557 /* Post the rpi header region to the device. */
6558 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
6560 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6561 "0393 Error %d during rpi post operation\n",
6566 lpfc_sli4_node_prep(phba);
6568 /* Create all the SLI4 queues */
6569 rc = lpfc_sli4_queue_create(phba);
6571 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6572 "3089 Failed to allocate queues\n");
6574 goto out_stop_timers;
6576 /* Set up all the queues to the device */
6577 rc = lpfc_sli4_queue_setup(phba);
6579 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6580 "0381 Error %d during queue setup.\n ", rc);
6581 goto out_destroy_queue;
6584 /* Arm the CQs and then EQs on device */
6585 lpfc_sli4_arm_cqeq_intr(phba);
6587 /* Indicate device interrupt mode */
6588 phba->sli4_hba.intr_enable = 1;
6590 /* Allow asynchronous mailbox command to go through */
6591 spin_lock_irq(&phba->hbalock);
6592 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
6593 spin_unlock_irq(&phba->hbalock);
6595 /* Post receive buffers to the device */
6596 lpfc_sli4_rb_setup(phba);
6598 /* Reset HBA FCF states after HBA reset */
6599 phba->fcf.fcf_flag = 0;
6600 phba->fcf.current_rec.flag = 0;
6602 /* Start the ELS watchdog timer */
6603 mod_timer(&vport->els_tmofunc,
6604 jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov * 2)));
6606 /* Start heart beat timer */
6607 mod_timer(&phba->hb_tmofunc,
6608 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
6609 phba->hb_outstanding = 0;
6610 phba->last_completion_time = jiffies;
6612 /* Start error attention (ERATT) polling timer */
6613 mod_timer(&phba->eratt_poll,
6614 jiffies + msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
6616 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
6617 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
6618 rc = pci_enable_pcie_error_reporting(phba->pcidev);
6620 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6621 "2829 This device supports "
6622 "Advanced Error Reporting (AER)\n");
6623 spin_lock_irq(&phba->hbalock);
6624 phba->hba_flag |= HBA_AER_ENABLED;
6625 spin_unlock_irq(&phba->hbalock);
6627 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6628 "2830 This device does not support "
6629 "Advanced Error Reporting (AER)\n");
6630 phba->cfg_aer_support = 0;
6635 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
6637 * The FC Port needs to register FCFI (index 0)
6639 lpfc_reg_fcfi(phba, mboxq);
6640 mboxq->vport = phba->pport;
6641 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6642 if (rc != MBX_SUCCESS)
6643 goto out_unset_queue;
6645 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi,
6646 &mboxq->u.mqe.un.reg_fcfi);
6648 /* Check if the port is configured to be disabled */
6649 lpfc_sli_read_link_ste(phba);
6653 * The port is ready, set the host's link state to LINK_DOWN
6654 * in preparation for link interrupts.
6656 spin_lock_irq(&phba->hbalock);
6657 phba->link_state = LPFC_LINK_DOWN;
6658 spin_unlock_irq(&phba->hbalock);
6659 if (!(phba->hba_flag & HBA_FCOE_MODE) &&
6660 (phba->hba_flag & LINK_DISABLED)) {
6661 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
6662 "3103 Adapter Link is disabled.\n");
6663 lpfc_down_link(phba, mboxq);
6664 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6665 if (rc != MBX_SUCCESS) {
6666 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
6667 "3104 Adapter failed to issue "
6668 "DOWN_LINK mbox cmd, rc:x%x\n", rc);
6669 goto out_unset_queue;
6671 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
6672 /* don't perform init_link on SLI4 FC port loopback test */
6673 if (!(phba->link_flag & LS_LOOPBACK_MODE)) {
6674 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
6676 goto out_unset_queue;
6679 mempool_free(mboxq, phba->mbox_mem_pool);
6682 /* Unset all the queues set up in this routine when error out */
6683 lpfc_sli4_queue_unset(phba);
6685 lpfc_sli4_queue_destroy(phba);
6687 lpfc_stop_hba_timers(phba);
6689 mempool_free(mboxq, phba->mbox_mem_pool);
6694 * lpfc_mbox_timeout - Timeout call back function for mbox timer
6695 * @ptr: context object - pointer to hba structure.
6697 * This is the callback function for mailbox timer. The mailbox
6698 * timer is armed when a new mailbox command is issued and the timer
6699 * is deleted when the mailbox complete. The function is called by
6700 * the kernel timer code when a mailbox does not complete within
6701 * expected time. This function wakes up the worker thread to
6702 * process the mailbox timeout and returns. All the processing is
6703 * done by the worker thread function lpfc_mbox_timeout_handler.
6706 lpfc_mbox_timeout(unsigned long ptr)
6708 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
6709 unsigned long iflag;
6710 uint32_t tmo_posted;
6712 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
6713 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
6715 phba->pport->work_port_events |= WORKER_MBOX_TMO;
6716 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
6719 lpfc_worker_wake_up(phba);
6724 * lpfc_sli4_mbox_completions_pending - check to see if any mailbox completions
6726 * @phba: Pointer to HBA context object.
6728 * This function checks if any mailbox completions are present on the mailbox
6732 lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba)
6736 struct lpfc_queue *mcq;
6737 struct lpfc_mcqe *mcqe;
6738 bool pending_completions = false;
6740 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
6743 /* Check for completions on mailbox completion queue */
6745 mcq = phba->sli4_hba.mbx_cq;
6746 idx = mcq->hba_index;
6747 while (bf_get_le32(lpfc_cqe_valid, mcq->qe[idx].cqe)) {
6748 mcqe = (struct lpfc_mcqe *)mcq->qe[idx].cqe;
6749 if (bf_get_le32(lpfc_trailer_completed, mcqe) &&
6750 (!bf_get_le32(lpfc_trailer_async, mcqe))) {
6751 pending_completions = true;
6754 idx = (idx + 1) % mcq->entry_count;
6755 if (mcq->hba_index == idx)
6758 return pending_completions;
6763 * lpfc_sli4_process_missed_mbox_completions - process mbox completions
6765 * @phba: Pointer to HBA context object.
6767 * For sli4, it is possible to miss an interrupt. As such mbox completions
6768 * maybe missed causing erroneous mailbox timeouts to occur. This function
6769 * checks to see if mbox completions are on the mailbox completion queue
6770 * and will process all the completions associated with the eq for the
6771 * mailbox completion queue.
6774 lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba)
6778 struct lpfc_queue *fpeq = NULL;
6779 struct lpfc_eqe *eqe;
6782 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
6785 /* Find the eq associated with the mcq */
6787 if (phba->sli4_hba.hba_eq)
6788 for (eqidx = 0; eqidx < phba->cfg_fcp_io_channel; eqidx++)
6789 if (phba->sli4_hba.hba_eq[eqidx]->queue_id ==
6790 phba->sli4_hba.mbx_cq->assoc_qid) {
6791 fpeq = phba->sli4_hba.hba_eq[eqidx];
6797 /* Turn off interrupts from this EQ */
6799 lpfc_sli4_eq_clr_intr(fpeq);
6801 /* Check to see if a mbox completion is pending */
6803 mbox_pending = lpfc_sli4_mbox_completions_pending(phba);
6806 * If a mbox completion is pending, process all the events on EQ
6807 * associated with the mbox completion queue (this could include
6808 * mailbox commands, async events, els commands, receive queue data
6813 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
6814 lpfc_sli4_hba_handle_eqe(phba, eqe, eqidx);
6815 fpeq->EQ_processed++;
6818 /* Always clear and re-arm the EQ */
6820 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
6822 return mbox_pending;
6827 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
6828 * @phba: Pointer to HBA context object.
6830 * This function is called from worker thread when a mailbox command times out.
6831 * The caller is not required to hold any locks. This function will reset the
6832 * HBA and recover all the pending commands.
6835 lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
6837 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
6838 MAILBOX_t *mb = NULL;
6840 struct lpfc_sli *psli = &phba->sli;
6842 /* If the mailbox completed, process the completion and return */
6843 if (lpfc_sli4_process_missed_mbox_completions(phba))
6848 /* Check the pmbox pointer first. There is a race condition
6849 * between the mbox timeout handler getting executed in the
6850 * worklist and the mailbox actually completing. When this
6851 * race condition occurs, the mbox_active will be NULL.
6853 spin_lock_irq(&phba->hbalock);
6854 if (pmbox == NULL) {
6855 lpfc_printf_log(phba, KERN_WARNING,
6857 "0353 Active Mailbox cleared - mailbox timeout "
6859 spin_unlock_irq(&phba->hbalock);
6863 /* Mbox cmd <mbxCommand> timeout */
6864 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6865 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
6867 phba->pport->port_state,
6869 phba->sli.mbox_active);
6870 spin_unlock_irq(&phba->hbalock);
6872 /* Setting state unknown so lpfc_sli_abort_iocb_ring
6873 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
6874 * it to fail all outstanding SCSI IO.
6876 spin_lock_irq(&phba->pport->work_port_lock);
6877 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
6878 spin_unlock_irq(&phba->pport->work_port_lock);
6879 spin_lock_irq(&phba->hbalock);
6880 phba->link_state = LPFC_LINK_UNKNOWN;
6881 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
6882 spin_unlock_irq(&phba->hbalock);
6884 lpfc_sli_abort_fcp_rings(phba);
6886 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6887 "0345 Resetting board due to mailbox timeout\n");
6889 /* Reset the HBA device */
6890 lpfc_reset_hba(phba);
6894 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
6895 * @phba: Pointer to HBA context object.
6896 * @pmbox: Pointer to mailbox object.
6897 * @flag: Flag indicating how the mailbox need to be processed.
6899 * This function is called by discovery code and HBA management code
6900 * to submit a mailbox command to firmware with SLI-3 interface spec. This
6901 * function gets the hbalock to protect the data structures.
6902 * The mailbox command can be submitted in polling mode, in which case
6903 * this function will wait in a polling loop for the completion of the
6905 * If the mailbox is submitted in no_wait mode (not polling) the
6906 * function will submit the command and returns immediately without waiting
6907 * for the mailbox completion. The no_wait is supported only when HBA
6908 * is in SLI2/SLI3 mode - interrupts are enabled.
6909 * The SLI interface allows only one mailbox pending at a time. If the
6910 * mailbox is issued in polling mode and there is already a mailbox
6911 * pending, then the function will return an error. If the mailbox is issued
6912 * in NO_WAIT mode and there is a mailbox pending already, the function
6913 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
6914 * The sli layer owns the mailbox object until the completion of mailbox
6915 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
6916 * return codes the caller owns the mailbox command after the return of
6920 lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
6924 struct lpfc_sli *psli = &phba->sli;
6925 uint32_t status, evtctr;
6926 uint32_t ha_copy, hc_copy;
6928 unsigned long timeout;
6929 unsigned long drvr_flag = 0;
6930 uint32_t word0, ldata;
6931 void __iomem *to_slim;
6932 int processing_queue = 0;
6934 spin_lock_irqsave(&phba->hbalock, drvr_flag);
6936 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6937 /* processing mbox queue from intr_handler */
6938 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
6939 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6942 processing_queue = 1;
6943 pmbox = lpfc_mbox_get(phba);
6945 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6950 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
6951 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
6953 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6954 lpfc_printf_log(phba, KERN_ERR,
6955 LOG_MBOX | LOG_VPORT,
6956 "1806 Mbox x%x failed. No vport\n",
6957 pmbox->u.mb.mbxCommand);
6959 goto out_not_finished;
6963 /* If the PCI channel is in offline state, do not post mbox. */
6964 if (unlikely(pci_channel_offline(phba->pcidev))) {
6965 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6966 goto out_not_finished;
6969 /* If HBA has a deferred error attention, fail the iocb. */
6970 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
6971 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6972 goto out_not_finished;
6978 status = MBX_SUCCESS;
6980 if (phba->link_state == LPFC_HBA_ERROR) {
6981 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6983 /* Mbox command <mbxCommand> cannot issue */
6984 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6985 "(%d):0311 Mailbox command x%x cannot "
6986 "issue Data: x%x x%x\n",
6987 pmbox->vport ? pmbox->vport->vpi : 0,
6988 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
6989 goto out_not_finished;
6992 if (mbx->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT) {
6993 if (lpfc_readl(phba->HCregaddr, &hc_copy) ||
6994 !(hc_copy & HC_MBINT_ENA)) {
6995 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6996 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6997 "(%d):2528 Mailbox command x%x cannot "
6998 "issue Data: x%x x%x\n",
6999 pmbox->vport ? pmbox->vport->vpi : 0,
7000 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
7001 goto out_not_finished;
7005 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7006 /* Polling for a mbox command when another one is already active
7007 * is not allowed in SLI. Also, the driver must have established
7008 * SLI2 mode to queue and process multiple mbox commands.
7011 if (flag & MBX_POLL) {
7012 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7014 /* Mbox command <mbxCommand> cannot issue */
7015 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7016 "(%d):2529 Mailbox command x%x "
7017 "cannot issue Data: x%x x%x\n",
7018 pmbox->vport ? pmbox->vport->vpi : 0,
7019 pmbox->u.mb.mbxCommand,
7020 psli->sli_flag, flag);
7021 goto out_not_finished;
7024 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
7025 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7026 /* Mbox command <mbxCommand> cannot issue */
7027 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7028 "(%d):2530 Mailbox command x%x "
7029 "cannot issue Data: x%x x%x\n",
7030 pmbox->vport ? pmbox->vport->vpi : 0,
7031 pmbox->u.mb.mbxCommand,
7032 psli->sli_flag, flag);
7033 goto out_not_finished;
7036 /* Another mailbox command is still being processed, queue this
7037 * command to be processed later.
7039 lpfc_mbox_put(phba, pmbox);
7041 /* Mbox cmd issue - BUSY */
7042 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7043 "(%d):0308 Mbox cmd issue - BUSY Data: "
7044 "x%x x%x x%x x%x\n",
7045 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
7046 mbx->mbxCommand, phba->pport->port_state,
7047 psli->sli_flag, flag);
7049 psli->slistat.mbox_busy++;
7050 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7053 lpfc_debugfs_disc_trc(pmbox->vport,
7054 LPFC_DISC_TRC_MBOX_VPORT,
7055 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
7056 (uint32_t)mbx->mbxCommand,
7057 mbx->un.varWords[0], mbx->un.varWords[1]);
7060 lpfc_debugfs_disc_trc(phba->pport,
7062 "MBOX Bsy: cmd:x%x mb:x%x x%x",
7063 (uint32_t)mbx->mbxCommand,
7064 mbx->un.varWords[0], mbx->un.varWords[1]);
7070 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7072 /* If we are not polling, we MUST be in SLI2 mode */
7073 if (flag != MBX_POLL) {
7074 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
7075 (mbx->mbxCommand != MBX_KILL_BOARD)) {
7076 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7077 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7078 /* Mbox command <mbxCommand> cannot issue */
7079 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7080 "(%d):2531 Mailbox command x%x "
7081 "cannot issue Data: x%x x%x\n",
7082 pmbox->vport ? pmbox->vport->vpi : 0,
7083 pmbox->u.mb.mbxCommand,
7084 psli->sli_flag, flag);
7085 goto out_not_finished;
7087 /* timeout active mbox command */
7088 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
7090 mod_timer(&psli->mbox_tmo, jiffies + timeout);
7093 /* Mailbox cmd <cmd> issue */
7094 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7095 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
7097 pmbox->vport ? pmbox->vport->vpi : 0,
7098 mbx->mbxCommand, phba->pport->port_state,
7099 psli->sli_flag, flag);
7101 if (mbx->mbxCommand != MBX_HEARTBEAT) {
7103 lpfc_debugfs_disc_trc(pmbox->vport,
7104 LPFC_DISC_TRC_MBOX_VPORT,
7105 "MBOX Send vport: cmd:x%x mb:x%x x%x",
7106 (uint32_t)mbx->mbxCommand,
7107 mbx->un.varWords[0], mbx->un.varWords[1]);
7110 lpfc_debugfs_disc_trc(phba->pport,
7112 "MBOX Send: cmd:x%x mb:x%x x%x",
7113 (uint32_t)mbx->mbxCommand,
7114 mbx->un.varWords[0], mbx->un.varWords[1]);
7118 psli->slistat.mbox_cmd++;
7119 evtctr = psli->slistat.mbox_event;
7121 /* next set own bit for the adapter and copy over command word */
7122 mbx->mbxOwner = OWN_CHIP;
7124 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7125 /* Populate mbox extension offset word. */
7126 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) {
7127 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
7128 = (uint8_t *)phba->mbox_ext
7129 - (uint8_t *)phba->mbox;
7132 /* Copy the mailbox extension data */
7133 if (pmbox->in_ext_byte_len && pmbox->context2) {
7134 lpfc_sli_pcimem_bcopy(pmbox->context2,
7135 (uint8_t *)phba->mbox_ext,
7136 pmbox->in_ext_byte_len);
7138 /* Copy command data to host SLIM area */
7139 lpfc_sli_pcimem_bcopy(mbx, phba->mbox, MAILBOX_CMD_SIZE);
7141 /* Populate mbox extension offset word. */
7142 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len)
7143 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
7144 = MAILBOX_HBA_EXT_OFFSET;
7146 /* Copy the mailbox extension data */
7147 if (pmbox->in_ext_byte_len && pmbox->context2) {
7148 lpfc_memcpy_to_slim(phba->MBslimaddr +
7149 MAILBOX_HBA_EXT_OFFSET,
7150 pmbox->context2, pmbox->in_ext_byte_len);
7153 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
7154 /* copy command data into host mbox for cmpl */
7155 lpfc_sli_pcimem_bcopy(mbx, phba->mbox, MAILBOX_CMD_SIZE);
7158 /* First copy mbox command data to HBA SLIM, skip past first
7160 to_slim = phba->MBslimaddr + sizeof (uint32_t);
7161 lpfc_memcpy_to_slim(to_slim, &mbx->un.varWords[0],
7162 MAILBOX_CMD_SIZE - sizeof (uint32_t));
7164 /* Next copy over first word, with mbxOwner set */
7165 ldata = *((uint32_t *)mbx);
7166 to_slim = phba->MBslimaddr;
7167 writel(ldata, to_slim);
7168 readl(to_slim); /* flush */
7170 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
7171 /* switch over to host mailbox */
7172 psli->sli_flag |= LPFC_SLI_ACTIVE;
7180 /* Set up reference to mailbox command */
7181 psli->mbox_active = pmbox;
7182 /* Interrupt board to do it */
7183 writel(CA_MBATT, phba->CAregaddr);
7184 readl(phba->CAregaddr); /* flush */
7185 /* Don't wait for it to finish, just return */
7189 /* Set up null reference to mailbox command */
7190 psli->mbox_active = NULL;
7191 /* Interrupt board to do it */
7192 writel(CA_MBATT, phba->CAregaddr);
7193 readl(phba->CAregaddr); /* flush */
7195 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7196 /* First read mbox status word */
7197 word0 = *((uint32_t *)phba->mbox);
7198 word0 = le32_to_cpu(word0);
7200 /* First read mbox status word */
7201 if (lpfc_readl(phba->MBslimaddr, &word0)) {
7202 spin_unlock_irqrestore(&phba->hbalock,
7204 goto out_not_finished;
7208 /* Read the HBA Host Attention Register */
7209 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
7210 spin_unlock_irqrestore(&phba->hbalock,
7212 goto out_not_finished;
7214 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
7217 /* Wait for command to complete */
7218 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
7219 (!(ha_copy & HA_MBATT) &&
7220 (phba->link_state > LPFC_WARM_START))) {
7221 if (time_after(jiffies, timeout)) {
7222 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7223 spin_unlock_irqrestore(&phba->hbalock,
7225 goto out_not_finished;
7228 /* Check if we took a mbox interrupt while we were
7230 if (((word0 & OWN_CHIP) != OWN_CHIP)
7231 && (evtctr != psli->slistat.mbox_event))
7235 spin_unlock_irqrestore(&phba->hbalock,
7238 spin_lock_irqsave(&phba->hbalock, drvr_flag);
7241 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7242 /* First copy command data */
7243 word0 = *((uint32_t *)phba->mbox);
7244 word0 = le32_to_cpu(word0);
7245 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
7248 /* Check real SLIM for any errors */
7249 slimword0 = readl(phba->MBslimaddr);
7250 slimmb = (MAILBOX_t *) & slimword0;
7251 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
7252 && slimmb->mbxStatus) {
7259 /* First copy command data */
7260 word0 = readl(phba->MBslimaddr);
7262 /* Read the HBA Host Attention Register */
7263 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
7264 spin_unlock_irqrestore(&phba->hbalock,
7266 goto out_not_finished;
7270 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7271 /* copy results back to user */
7272 lpfc_sli_pcimem_bcopy(phba->mbox, mbx, MAILBOX_CMD_SIZE);
7273 /* Copy the mailbox extension data */
7274 if (pmbox->out_ext_byte_len && pmbox->context2) {
7275 lpfc_sli_pcimem_bcopy(phba->mbox_ext,
7277 pmbox->out_ext_byte_len);
7280 /* First copy command data */
7281 lpfc_memcpy_from_slim(mbx, phba->MBslimaddr,
7283 /* Copy the mailbox extension data */
7284 if (pmbox->out_ext_byte_len && pmbox->context2) {
7285 lpfc_memcpy_from_slim(pmbox->context2,
7287 MAILBOX_HBA_EXT_OFFSET,
7288 pmbox->out_ext_byte_len);
7292 writel(HA_MBATT, phba->HAregaddr);
7293 readl(phba->HAregaddr); /* flush */
7295 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7296 status = mbx->mbxStatus;
7299 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7303 if (processing_queue) {
7304 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
7305 lpfc_mbox_cmpl_put(phba, pmbox);
7307 return MBX_NOT_FINISHED;
7311 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
7312 * @phba: Pointer to HBA context object.
7314 * The function blocks the posting of SLI4 asynchronous mailbox commands from
7315 * the driver internal pending mailbox queue. It will then try to wait out the
7316 * possible outstanding mailbox command before return.
7319 * 0 - the outstanding mailbox command completed; otherwise, the wait for
7320 * the outstanding mailbox command timed out.
7323 lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
7325 struct lpfc_sli *psli = &phba->sli;
7327 unsigned long timeout = 0;
7329 /* Mark the asynchronous mailbox command posting as blocked */
7330 spin_lock_irq(&phba->hbalock);
7331 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
7332 /* Determine how long we might wait for the active mailbox
7333 * command to be gracefully completed by firmware.
7335 if (phba->sli.mbox_active)
7336 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
7337 phba->sli.mbox_active) *
7339 spin_unlock_irq(&phba->hbalock);
7341 /* Make sure the mailbox is really active */
7343 lpfc_sli4_process_missed_mbox_completions(phba);
7345 /* Wait for the outstnading mailbox command to complete */
7346 while (phba->sli.mbox_active) {
7347 /* Check active mailbox complete status every 2ms */
7349 if (time_after(jiffies, timeout)) {
7350 /* Timeout, marked the outstanding cmd not complete */
7356 /* Can not cleanly block async mailbox command, fails it */
7358 spin_lock_irq(&phba->hbalock);
7359 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7360 spin_unlock_irq(&phba->hbalock);
7366 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
7367 * @phba: Pointer to HBA context object.
7369 * The function unblocks and resume posting of SLI4 asynchronous mailbox
7370 * commands from the driver internal pending mailbox queue. It makes sure
7371 * that there is no outstanding mailbox command before resuming posting
7372 * asynchronous mailbox commands. If, for any reason, there is outstanding
7373 * mailbox command, it will try to wait it out before resuming asynchronous
7374 * mailbox command posting.
7377 lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
7379 struct lpfc_sli *psli = &phba->sli;
7381 spin_lock_irq(&phba->hbalock);
7382 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7383 /* Asynchronous mailbox posting is not blocked, do nothing */
7384 spin_unlock_irq(&phba->hbalock);
7388 /* Outstanding synchronous mailbox command is guaranteed to be done,
7389 * successful or timeout, after timing-out the outstanding mailbox
7390 * command shall always be removed, so just unblock posting async
7391 * mailbox command and resume
7393 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7394 spin_unlock_irq(&phba->hbalock);
7396 /* wake up worker thread to post asynchronlous mailbox command */
7397 lpfc_worker_wake_up(phba);
7401 * lpfc_sli4_wait_bmbx_ready - Wait for bootstrap mailbox register ready
7402 * @phba: Pointer to HBA context object.
7403 * @mboxq: Pointer to mailbox object.
7405 * The function waits for the bootstrap mailbox register ready bit from
7406 * port for twice the regular mailbox command timeout value.
7408 * 0 - no timeout on waiting for bootstrap mailbox register ready.
7409 * MBXERR_ERROR - wait for bootstrap mailbox register timed out.
7412 lpfc_sli4_wait_bmbx_ready(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7415 unsigned long timeout;
7416 struct lpfc_register bmbx_reg;
7418 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mboxq)
7422 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
7423 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
7427 if (time_after(jiffies, timeout))
7428 return MBXERR_ERROR;
7429 } while (!db_ready);
7435 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
7436 * @phba: Pointer to HBA context object.
7437 * @mboxq: Pointer to mailbox object.
7439 * The function posts a mailbox to the port. The mailbox is expected
7440 * to be comletely filled in and ready for the port to operate on it.
7441 * This routine executes a synchronous completion operation on the
7442 * mailbox by polling for its completion.
7444 * The caller must not be holding any locks when calling this routine.
7447 * MBX_SUCCESS - mailbox posted successfully
7448 * Any of the MBX error values.
7451 lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7453 int rc = MBX_SUCCESS;
7454 unsigned long iflag;
7455 uint32_t mcqe_status;
7457 struct lpfc_sli *psli = &phba->sli;
7458 struct lpfc_mqe *mb = &mboxq->u.mqe;
7459 struct lpfc_bmbx_create *mbox_rgn;
7460 struct dma_address *dma_address;
7463 * Only one mailbox can be active to the bootstrap mailbox region
7464 * at a time and there is no queueing provided.
7466 spin_lock_irqsave(&phba->hbalock, iflag);
7467 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7468 spin_unlock_irqrestore(&phba->hbalock, iflag);
7469 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7470 "(%d):2532 Mailbox command x%x (x%x/x%x) "
7471 "cannot issue Data: x%x x%x\n",
7472 mboxq->vport ? mboxq->vport->vpi : 0,
7473 mboxq->u.mb.mbxCommand,
7474 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7475 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7476 psli->sli_flag, MBX_POLL);
7477 return MBXERR_ERROR;
7479 /* The server grabs the token and owns it until release */
7480 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7481 phba->sli.mbox_active = mboxq;
7482 spin_unlock_irqrestore(&phba->hbalock, iflag);
7484 /* wait for bootstrap mbox register for readyness */
7485 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7490 * Initialize the bootstrap memory region to avoid stale data areas
7491 * in the mailbox post. Then copy the caller's mailbox contents to
7492 * the bmbx mailbox region.
7494 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
7495 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
7496 lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
7497 sizeof(struct lpfc_mqe));
7499 /* Post the high mailbox dma address to the port and wait for ready. */
7500 dma_address = &phba->sli4_hba.bmbx.dma_address;
7501 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
7503 /* wait for bootstrap mbox register for hi-address write done */
7504 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7508 /* Post the low mailbox dma address to the port. */
7509 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
7511 /* wait for bootstrap mbox register for low address write done */
7512 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7517 * Read the CQ to ensure the mailbox has completed.
7518 * If so, update the mailbox status so that the upper layers
7519 * can complete the request normally.
7521 lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
7522 sizeof(struct lpfc_mqe));
7523 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
7524 lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
7525 sizeof(struct lpfc_mcqe));
7526 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
7528 * When the CQE status indicates a failure and the mailbox status
7529 * indicates success then copy the CQE status into the mailbox status
7530 * (and prefix it with x4000).
7532 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
7533 if (bf_get(lpfc_mqe_status, mb) == MBX_SUCCESS)
7534 bf_set(lpfc_mqe_status, mb,
7535 (LPFC_MBX_ERROR_RANGE | mcqe_status));
7538 lpfc_sli4_swap_str(phba, mboxq);
7540 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7541 "(%d):0356 Mailbox cmd x%x (x%x/x%x) Status x%x "
7542 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
7543 " x%x x%x CQ: x%x x%x x%x x%x\n",
7544 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
7545 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7546 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7547 bf_get(lpfc_mqe_status, mb),
7548 mb->un.mb_words[0], mb->un.mb_words[1],
7549 mb->un.mb_words[2], mb->un.mb_words[3],
7550 mb->un.mb_words[4], mb->un.mb_words[5],
7551 mb->un.mb_words[6], mb->un.mb_words[7],
7552 mb->un.mb_words[8], mb->un.mb_words[9],
7553 mb->un.mb_words[10], mb->un.mb_words[11],
7554 mb->un.mb_words[12], mboxq->mcqe.word0,
7555 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
7556 mboxq->mcqe.trailer);
7558 /* We are holding the token, no needed for lock when release */
7559 spin_lock_irqsave(&phba->hbalock, iflag);
7560 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7561 phba->sli.mbox_active = NULL;
7562 spin_unlock_irqrestore(&phba->hbalock, iflag);
7567 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
7568 * @phba: Pointer to HBA context object.
7569 * @pmbox: Pointer to mailbox object.
7570 * @flag: Flag indicating how the mailbox need to be processed.
7572 * This function is called by discovery code and HBA management code to submit
7573 * a mailbox command to firmware with SLI-4 interface spec.
7575 * Return codes the caller owns the mailbox command after the return of the
7579 lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
7582 struct lpfc_sli *psli = &phba->sli;
7583 unsigned long iflags;
7586 /* dump from issue mailbox command if setup */
7587 lpfc_idiag_mbxacc_dump_issue_mbox(phba, &mboxq->u.mb);
7589 rc = lpfc_mbox_dev_check(phba);
7591 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7592 "(%d):2544 Mailbox command x%x (x%x/x%x) "
7593 "cannot issue Data: x%x x%x\n",
7594 mboxq->vport ? mboxq->vport->vpi : 0,
7595 mboxq->u.mb.mbxCommand,
7596 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7597 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7598 psli->sli_flag, flag);
7599 goto out_not_finished;
7602 /* Detect polling mode and jump to a handler */
7603 if (!phba->sli4_hba.intr_enable) {
7604 if (flag == MBX_POLL)
7605 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
7608 if (rc != MBX_SUCCESS)
7609 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7610 "(%d):2541 Mailbox command x%x "
7611 "(x%x/x%x) failure: "
7612 "mqe_sta: x%x mcqe_sta: x%x/x%x "
7614 mboxq->vport ? mboxq->vport->vpi : 0,
7615 mboxq->u.mb.mbxCommand,
7616 lpfc_sli_config_mbox_subsys_get(phba,
7618 lpfc_sli_config_mbox_opcode_get(phba,
7620 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
7621 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
7622 bf_get(lpfc_mcqe_ext_status,
7624 psli->sli_flag, flag);
7626 } else if (flag == MBX_POLL) {
7627 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7628 "(%d):2542 Try to issue mailbox command "
7629 "x%x (x%x/x%x) synchronously ahead of async"
7630 "mailbox command queue: x%x x%x\n",
7631 mboxq->vport ? mboxq->vport->vpi : 0,
7632 mboxq->u.mb.mbxCommand,
7633 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7634 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7635 psli->sli_flag, flag);
7636 /* Try to block the asynchronous mailbox posting */
7637 rc = lpfc_sli4_async_mbox_block(phba);
7639 /* Successfully blocked, now issue sync mbox cmd */
7640 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
7641 if (rc != MBX_SUCCESS)
7642 lpfc_printf_log(phba, KERN_WARNING,
7644 "(%d):2597 Sync Mailbox command "
7645 "x%x (x%x/x%x) failure: "
7646 "mqe_sta: x%x mcqe_sta: x%x/x%x "
7648 mboxq->vport ? mboxq->vport->vpi : 0,
7649 mboxq->u.mb.mbxCommand,
7650 lpfc_sli_config_mbox_subsys_get(phba,
7652 lpfc_sli_config_mbox_opcode_get(phba,
7654 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
7655 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
7656 bf_get(lpfc_mcqe_ext_status,
7658 psli->sli_flag, flag);
7659 /* Unblock the async mailbox posting afterward */
7660 lpfc_sli4_async_mbox_unblock(phba);
7665 /* Now, interrupt mode asynchrous mailbox command */
7666 rc = lpfc_mbox_cmd_check(phba, mboxq);
7668 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7669 "(%d):2543 Mailbox command x%x (x%x/x%x) "
7670 "cannot issue Data: x%x x%x\n",
7671 mboxq->vport ? mboxq->vport->vpi : 0,
7672 mboxq->u.mb.mbxCommand,
7673 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7674 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7675 psli->sli_flag, flag);
7676 goto out_not_finished;
7679 /* Put the mailbox command to the driver internal FIFO */
7680 psli->slistat.mbox_busy++;
7681 spin_lock_irqsave(&phba->hbalock, iflags);
7682 lpfc_mbox_put(phba, mboxq);
7683 spin_unlock_irqrestore(&phba->hbalock, iflags);
7684 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7685 "(%d):0354 Mbox cmd issue - Enqueue Data: "
7686 "x%x (x%x/x%x) x%x x%x x%x\n",
7687 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
7688 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
7689 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7690 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7691 phba->pport->port_state,
7692 psli->sli_flag, MBX_NOWAIT);
7693 /* Wake up worker thread to transport mailbox command from head */
7694 lpfc_worker_wake_up(phba);
7699 return MBX_NOT_FINISHED;
7703 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
7704 * @phba: Pointer to HBA context object.
7706 * This function is called by worker thread to send a mailbox command to
7707 * SLI4 HBA firmware.
7711 lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
7713 struct lpfc_sli *psli = &phba->sli;
7714 LPFC_MBOXQ_t *mboxq;
7715 int rc = MBX_SUCCESS;
7716 unsigned long iflags;
7717 struct lpfc_mqe *mqe;
7720 /* Check interrupt mode before post async mailbox command */
7721 if (unlikely(!phba->sli4_hba.intr_enable))
7722 return MBX_NOT_FINISHED;
7724 /* Check for mailbox command service token */
7725 spin_lock_irqsave(&phba->hbalock, iflags);
7726 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7727 spin_unlock_irqrestore(&phba->hbalock, iflags);
7728 return MBX_NOT_FINISHED;
7730 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7731 spin_unlock_irqrestore(&phba->hbalock, iflags);
7732 return MBX_NOT_FINISHED;
7734 if (unlikely(phba->sli.mbox_active)) {
7735 spin_unlock_irqrestore(&phba->hbalock, iflags);
7736 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7737 "0384 There is pending active mailbox cmd\n");
7738 return MBX_NOT_FINISHED;
7740 /* Take the mailbox command service token */
7741 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7743 /* Get the next mailbox command from head of queue */
7744 mboxq = lpfc_mbox_get(phba);
7746 /* If no more mailbox command waiting for post, we're done */
7748 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7749 spin_unlock_irqrestore(&phba->hbalock, iflags);
7752 phba->sli.mbox_active = mboxq;
7753 spin_unlock_irqrestore(&phba->hbalock, iflags);
7755 /* Check device readiness for posting mailbox command */
7756 rc = lpfc_mbox_dev_check(phba);
7758 /* Driver clean routine will clean up pending mailbox */
7759 goto out_not_finished;
7761 /* Prepare the mbox command to be posted */
7762 mqe = &mboxq->u.mqe;
7763 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
7765 /* Start timer for the mbox_tmo and log some mailbox post messages */
7766 mod_timer(&psli->mbox_tmo, (jiffies +
7767 msecs_to_jiffies(1000 * lpfc_mbox_tmo_val(phba, mboxq))));
7769 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7770 "(%d):0355 Mailbox cmd x%x (x%x/x%x) issue Data: "
7772 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
7773 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7774 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7775 phba->pport->port_state, psli->sli_flag);
7777 if (mbx_cmnd != MBX_HEARTBEAT) {
7779 lpfc_debugfs_disc_trc(mboxq->vport,
7780 LPFC_DISC_TRC_MBOX_VPORT,
7781 "MBOX Send vport: cmd:x%x mb:x%x x%x",
7782 mbx_cmnd, mqe->un.mb_words[0],
7783 mqe->un.mb_words[1]);
7785 lpfc_debugfs_disc_trc(phba->pport,
7787 "MBOX Send: cmd:x%x mb:x%x x%x",
7788 mbx_cmnd, mqe->un.mb_words[0],
7789 mqe->un.mb_words[1]);
7792 psli->slistat.mbox_cmd++;
7794 /* Post the mailbox command to the port */
7795 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
7796 if (rc != MBX_SUCCESS) {
7797 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7798 "(%d):2533 Mailbox command x%x (x%x/x%x) "
7799 "cannot issue Data: x%x x%x\n",
7800 mboxq->vport ? mboxq->vport->vpi : 0,
7801 mboxq->u.mb.mbxCommand,
7802 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7803 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7804 psli->sli_flag, MBX_NOWAIT);
7805 goto out_not_finished;
7811 spin_lock_irqsave(&phba->hbalock, iflags);
7812 if (phba->sli.mbox_active) {
7813 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
7814 __lpfc_mbox_cmpl_put(phba, mboxq);
7815 /* Release the token */
7816 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7817 phba->sli.mbox_active = NULL;
7819 spin_unlock_irqrestore(&phba->hbalock, iflags);
7821 return MBX_NOT_FINISHED;
7825 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
7826 * @phba: Pointer to HBA context object.
7827 * @pmbox: Pointer to mailbox object.
7828 * @flag: Flag indicating how the mailbox need to be processed.
7830 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
7831 * the API jump table function pointer from the lpfc_hba struct.
7833 * Return codes the caller owns the mailbox command after the return of the
7837 lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
7839 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
7843 * lpfc_mbox_api_table_setup - Set up mbox api function jump table
7844 * @phba: The hba struct for which this call is being executed.
7845 * @dev_grp: The HBA PCI-Device group number.
7847 * This routine sets up the mbox interface API function jump table in @phba
7849 * Returns: 0 - success, -ENODEV - failure.
7852 lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
7856 case LPFC_PCI_DEV_LP:
7857 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
7858 phba->lpfc_sli_handle_slow_ring_event =
7859 lpfc_sli_handle_slow_ring_event_s3;
7860 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
7861 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
7862 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
7864 case LPFC_PCI_DEV_OC:
7865 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
7866 phba->lpfc_sli_handle_slow_ring_event =
7867 lpfc_sli_handle_slow_ring_event_s4;
7868 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
7869 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
7870 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
7873 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7874 "1420 Invalid HBA PCI-device group: 0x%x\n",
7883 * __lpfc_sli_ringtx_put - Add an iocb to the txq
7884 * @phba: Pointer to HBA context object.
7885 * @pring: Pointer to driver SLI ring object.
7886 * @piocb: Pointer to address of newly added command iocb.
7888 * This function is called with hbalock held to add a command
7889 * iocb to the txq when SLI layer cannot submit the command iocb
7893 __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7894 struct lpfc_iocbq *piocb)
7896 lockdep_assert_held(&phba->hbalock);
7897 /* Insert the caller's iocb in the txq tail for later processing. */
7898 list_add_tail(&piocb->list, &pring->txq);
7902 * lpfc_sli_next_iocb - Get the next iocb in the txq
7903 * @phba: Pointer to HBA context object.
7904 * @pring: Pointer to driver SLI ring object.
7905 * @piocb: Pointer to address of newly added command iocb.
7907 * This function is called with hbalock held before a new
7908 * iocb is submitted to the firmware. This function checks
7909 * txq to flush the iocbs in txq to Firmware before
7910 * submitting new iocbs to the Firmware.
7911 * If there are iocbs in the txq which need to be submitted
7912 * to firmware, lpfc_sli_next_iocb returns the first element
7913 * of the txq after dequeuing it from txq.
7914 * If there is no iocb in the txq then the function will return
7915 * *piocb and *piocb is set to NULL. Caller needs to check
7916 * *piocb to find if there are more commands in the txq.
7918 static struct lpfc_iocbq *
7919 lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7920 struct lpfc_iocbq **piocb)
7922 struct lpfc_iocbq * nextiocb;
7924 lockdep_assert_held(&phba->hbalock);
7926 nextiocb = lpfc_sli_ringtx_get(phba, pring);
7936 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
7937 * @phba: Pointer to HBA context object.
7938 * @ring_number: SLI ring number to issue iocb on.
7939 * @piocb: Pointer to command iocb.
7940 * @flag: Flag indicating if this command can be put into txq.
7942 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
7943 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
7944 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
7945 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
7946 * this function allows only iocbs for posting buffers. This function finds
7947 * next available slot in the command ring and posts the command to the
7948 * available slot and writes the port attention register to request HBA start
7949 * processing new iocb. If there is no slot available in the ring and
7950 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
7951 * the function returns IOCB_BUSY.
7953 * This function is called with hbalock held. The function will return success
7954 * after it successfully submit the iocb to firmware or after adding to the
7958 __lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
7959 struct lpfc_iocbq *piocb, uint32_t flag)
7961 struct lpfc_iocbq *nextiocb;
7963 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
7965 lockdep_assert_held(&phba->hbalock);
7967 if (piocb->iocb_cmpl && (!piocb->vport) &&
7968 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
7969 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
7970 lpfc_printf_log(phba, KERN_ERR,
7971 LOG_SLI | LOG_VPORT,
7972 "1807 IOCB x%x failed. No vport\n",
7973 piocb->iocb.ulpCommand);
7979 /* If the PCI channel is in offline state, do not post iocbs. */
7980 if (unlikely(pci_channel_offline(phba->pcidev)))
7983 /* If HBA has a deferred error attention, fail the iocb. */
7984 if (unlikely(phba->hba_flag & DEFER_ERATT))
7988 * We should never get an IOCB if we are in a < LINK_DOWN state
7990 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
7994 * Check to see if we are blocking IOCB processing because of a
7995 * outstanding event.
7997 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
8000 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
8002 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
8003 * can be issued if the link is not up.
8005 switch (piocb->iocb.ulpCommand) {
8006 case CMD_GEN_REQUEST64_CR:
8007 case CMD_GEN_REQUEST64_CX:
8008 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
8009 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
8010 FC_RCTL_DD_UNSOL_CMD) ||
8011 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
8012 MENLO_TRANSPORT_TYPE))
8016 case CMD_QUE_RING_BUF_CN:
8017 case CMD_QUE_RING_BUF64_CN:
8019 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
8020 * completion, iocb_cmpl MUST be 0.
8022 if (piocb->iocb_cmpl)
8023 piocb->iocb_cmpl = NULL;
8025 case CMD_CREATE_XRI_CR:
8026 case CMD_CLOSE_XRI_CN:
8027 case CMD_CLOSE_XRI_CX:
8034 * For FCP commands, we must be in a state where we can process link
8037 } else if (unlikely(pring->ringno == phba->sli.fcp_ring &&
8038 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
8042 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
8043 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
8044 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
8047 lpfc_sli_update_ring(phba, pring);
8049 lpfc_sli_update_full_ring(phba, pring);
8052 return IOCB_SUCCESS;
8057 pring->stats.iocb_cmd_delay++;
8061 if (!(flag & SLI_IOCB_RET_IOCB)) {
8062 __lpfc_sli_ringtx_put(phba, pring, piocb);
8063 return IOCB_SUCCESS;
8070 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
8071 * @phba: Pointer to HBA context object.
8072 * @piocb: Pointer to command iocb.
8073 * @sglq: Pointer to the scatter gather queue object.
8075 * This routine converts the bpl or bde that is in the IOCB
8076 * to a sgl list for the sli4 hardware. The physical address
8077 * of the bpl/bde is converted back to a virtual address.
8078 * If the IOCB contains a BPL then the list of BDE's is
8079 * converted to sli4_sge's. If the IOCB contains a single
8080 * BDE then it is converted to a single sli_sge.
8081 * The IOCB is still in cpu endianess so the contents of
8082 * the bpl can be used without byte swapping.
8084 * Returns valid XRI = Success, NO_XRI = Failure.
8087 lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
8088 struct lpfc_sglq *sglq)
8090 uint16_t xritag = NO_XRI;
8091 struct ulp_bde64 *bpl = NULL;
8092 struct ulp_bde64 bde;
8093 struct sli4_sge *sgl = NULL;
8094 struct lpfc_dmabuf *dmabuf;
8098 uint32_t offset = 0; /* accumulated offset in the sg request list */
8099 int inbound = 0; /* number of sg reply entries inbound from firmware */
8101 if (!piocbq || !sglq)
8104 sgl = (struct sli4_sge *)sglq->sgl;
8105 icmd = &piocbq->iocb;
8106 if (icmd->ulpCommand == CMD_XMIT_BLS_RSP64_CX)
8107 return sglq->sli4_xritag;
8108 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
8109 numBdes = icmd->un.genreq64.bdl.bdeSize /
8110 sizeof(struct ulp_bde64);
8111 /* The addrHigh and addrLow fields within the IOCB
8112 * have not been byteswapped yet so there is no
8113 * need to swap them back.
8115 if (piocbq->context3)
8116 dmabuf = (struct lpfc_dmabuf *)piocbq->context3;
8120 bpl = (struct ulp_bde64 *)dmabuf->virt;
8124 for (i = 0; i < numBdes; i++) {
8125 /* Should already be byte swapped. */
8126 sgl->addr_hi = bpl->addrHigh;
8127 sgl->addr_lo = bpl->addrLow;
8129 sgl->word2 = le32_to_cpu(sgl->word2);
8130 if ((i+1) == numBdes)
8131 bf_set(lpfc_sli4_sge_last, sgl, 1);
8133 bf_set(lpfc_sli4_sge_last, sgl, 0);
8134 /* swap the size field back to the cpu so we
8135 * can assign it to the sgl.
8137 bde.tus.w = le32_to_cpu(bpl->tus.w);
8138 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
8139 /* The offsets in the sgl need to be accumulated
8140 * separately for the request and reply lists.
8141 * The request is always first, the reply follows.
8143 if (piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) {
8144 /* add up the reply sg entries */
8145 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
8147 /* first inbound? reset the offset */
8150 bf_set(lpfc_sli4_sge_offset, sgl, offset);
8151 bf_set(lpfc_sli4_sge_type, sgl,
8152 LPFC_SGE_TYPE_DATA);
8153 offset += bde.tus.f.bdeSize;
8155 sgl->word2 = cpu_to_le32(sgl->word2);
8159 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
8160 /* The addrHigh and addrLow fields of the BDE have not
8161 * been byteswapped yet so they need to be swapped
8162 * before putting them in the sgl.
8165 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
8167 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
8168 sgl->word2 = le32_to_cpu(sgl->word2);
8169 bf_set(lpfc_sli4_sge_last, sgl, 1);
8170 sgl->word2 = cpu_to_le32(sgl->word2);
8172 cpu_to_le32(icmd->un.genreq64.bdl.bdeSize);
8174 return sglq->sli4_xritag;
8178 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
8179 * @phba: Pointer to HBA context object.
8180 * @piocb: Pointer to command iocb.
8181 * @wqe: Pointer to the work queue entry.
8183 * This routine converts the iocb command to its Work Queue Entry
8184 * equivalent. The wqe pointer should not have any fields set when
8185 * this routine is called because it will memcpy over them.
8186 * This routine does not set the CQ_ID or the WQEC bits in the
8189 * Returns: 0 = Success, IOCB_ERROR = Failure.
8192 lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
8193 union lpfc_wqe *wqe)
8195 uint32_t xmit_len = 0, total_len = 0;
8199 uint8_t command_type = ELS_COMMAND_NON_FIP;
8202 uint16_t abrt_iotag;
8203 struct lpfc_iocbq *abrtiocbq;
8204 struct ulp_bde64 *bpl = NULL;
8205 uint32_t els_id = LPFC_ELS_ID_DEFAULT;
8207 struct ulp_bde64 bde;
8208 struct lpfc_nodelist *ndlp;
8212 fip = phba->hba_flag & HBA_FIP_SUPPORT;
8213 /* The fcp commands will set command type */
8214 if (iocbq->iocb_flag & LPFC_IO_FCP)
8215 command_type = FCP_COMMAND;
8216 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
8217 command_type = ELS_COMMAND_FIP;
8219 command_type = ELS_COMMAND_NON_FIP;
8221 /* Some of the fields are in the right position already */
8222 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
8223 abort_tag = (uint32_t) iocbq->iotag;
8224 xritag = iocbq->sli4_xritag;
8225 wqe->generic.wqe_com.word7 = 0; /* The ct field has moved so reset */
8226 wqe->generic.wqe_com.word10 = 0;
8227 /* words0-2 bpl convert bde */
8228 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
8229 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
8230 sizeof(struct ulp_bde64);
8231 bpl = (struct ulp_bde64 *)
8232 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
8236 /* Should already be byte swapped. */
8237 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
8238 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
8239 /* swap the size field back to the cpu so we
8240 * can assign it to the sgl.
8242 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
8243 xmit_len = wqe->generic.bde.tus.f.bdeSize;
8245 for (i = 0; i < numBdes; i++) {
8246 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
8247 total_len += bde.tus.f.bdeSize;
8250 xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
8252 iocbq->iocb.ulpIoTag = iocbq->iotag;
8253 cmnd = iocbq->iocb.ulpCommand;
8255 switch (iocbq->iocb.ulpCommand) {
8256 case CMD_ELS_REQUEST64_CR:
8257 if (iocbq->iocb_flag & LPFC_IO_LIBDFC)
8258 ndlp = iocbq->context_un.ndlp;
8260 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8261 if (!iocbq->iocb.ulpLe) {
8262 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8263 "2007 Only Limited Edition cmd Format"
8264 " supported 0x%x\n",
8265 iocbq->iocb.ulpCommand);
8269 wqe->els_req.payload_len = xmit_len;
8270 /* Els_reguest64 has a TMO */
8271 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
8272 iocbq->iocb.ulpTimeout);
8273 /* Need a VF for word 4 set the vf bit*/
8274 bf_set(els_req64_vf, &wqe->els_req, 0);
8275 /* And a VFID for word 12 */
8276 bf_set(els_req64_vfid, &wqe->els_req, 0);
8277 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
8278 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8279 iocbq->iocb.ulpContext);
8280 bf_set(wqe_ct, &wqe->els_req.wqe_com, ct);
8281 bf_set(wqe_pu, &wqe->els_req.wqe_com, 0);
8282 /* CCP CCPE PV PRI in word10 were set in the memcpy */
8283 if (command_type == ELS_COMMAND_FIP)
8284 els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
8285 >> LPFC_FIP_ELS_ID_SHIFT);
8286 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
8287 iocbq->context2)->virt);
8288 if_type = bf_get(lpfc_sli_intf_if_type,
8289 &phba->sli4_hba.sli_intf);
8290 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8291 if (pcmd && (*pcmd == ELS_CMD_FLOGI ||
8292 *pcmd == ELS_CMD_SCR ||
8293 *pcmd == ELS_CMD_FDISC ||
8294 *pcmd == ELS_CMD_LOGO ||
8295 *pcmd == ELS_CMD_PLOGI)) {
8296 bf_set(els_req64_sp, &wqe->els_req, 1);
8297 bf_set(els_req64_sid, &wqe->els_req,
8298 iocbq->vport->fc_myDID);
8299 if ((*pcmd == ELS_CMD_FLOGI) &&
8300 !(phba->fc_topology ==
8301 LPFC_TOPOLOGY_LOOP))
8302 bf_set(els_req64_sid, &wqe->els_req, 0);
8303 bf_set(wqe_ct, &wqe->els_req.wqe_com, 1);
8304 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8305 phba->vpi_ids[iocbq->vport->vpi]);
8306 } else if (pcmd && iocbq->context1) {
8307 bf_set(wqe_ct, &wqe->els_req.wqe_com, 0);
8308 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8309 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8312 bf_set(wqe_temp_rpi, &wqe->els_req.wqe_com,
8313 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8314 bf_set(wqe_els_id, &wqe->els_req.wqe_com, els_id);
8315 bf_set(wqe_dbde, &wqe->els_req.wqe_com, 1);
8316 bf_set(wqe_iod, &wqe->els_req.wqe_com, LPFC_WQE_IOD_READ);
8317 bf_set(wqe_qosd, &wqe->els_req.wqe_com, 1);
8318 bf_set(wqe_lenloc, &wqe->els_req.wqe_com, LPFC_WQE_LENLOC_NONE);
8319 bf_set(wqe_ebde_cnt, &wqe->els_req.wqe_com, 0);
8320 wqe->els_req.max_response_payload_len = total_len - xmit_len;
8322 case CMD_XMIT_SEQUENCE64_CX:
8323 bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com,
8324 iocbq->iocb.un.ulpWord[3]);
8325 bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com,
8326 iocbq->iocb.unsli3.rcvsli3.ox_id);
8327 /* The entire sequence is transmitted for this IOCB */
8328 xmit_len = total_len;
8329 cmnd = CMD_XMIT_SEQUENCE64_CR;
8330 if (phba->link_flag & LS_LOOPBACK_MODE)
8331 bf_set(wqe_xo, &wqe->xmit_sequence.wge_ctl, 1);
8332 case CMD_XMIT_SEQUENCE64_CR:
8333 /* word3 iocb=io_tag32 wqe=reserved */
8334 wqe->xmit_sequence.rsvd3 = 0;
8335 /* word4 relative_offset memcpy */
8336 /* word5 r_ctl/df_ctl memcpy */
8337 bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0);
8338 bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1);
8339 bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com,
8340 LPFC_WQE_IOD_WRITE);
8341 bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com,
8342 LPFC_WQE_LENLOC_WORD12);
8343 bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0);
8344 wqe->xmit_sequence.xmit_len = xmit_len;
8345 command_type = OTHER_COMMAND;
8347 case CMD_XMIT_BCAST64_CN:
8348 /* word3 iocb=iotag32 wqe=seq_payload_len */
8349 wqe->xmit_bcast64.seq_payload_len = xmit_len;
8350 /* word4 iocb=rsvd wqe=rsvd */
8351 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
8352 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
8353 bf_set(wqe_ct, &wqe->xmit_bcast64.wqe_com,
8354 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8355 bf_set(wqe_dbde, &wqe->xmit_bcast64.wqe_com, 1);
8356 bf_set(wqe_iod, &wqe->xmit_bcast64.wqe_com, LPFC_WQE_IOD_WRITE);
8357 bf_set(wqe_lenloc, &wqe->xmit_bcast64.wqe_com,
8358 LPFC_WQE_LENLOC_WORD3);
8359 bf_set(wqe_ebde_cnt, &wqe->xmit_bcast64.wqe_com, 0);
8361 case CMD_FCP_IWRITE64_CR:
8362 command_type = FCP_COMMAND_DATA_OUT;
8363 /* word3 iocb=iotag wqe=payload_offset_len */
8364 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8365 bf_set(payload_offset_len, &wqe->fcp_iwrite,
8366 xmit_len + sizeof(struct fcp_rsp));
8367 bf_set(cmd_buff_len, &wqe->fcp_iwrite,
8369 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8370 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8371 bf_set(wqe_erp, &wqe->fcp_iwrite.wqe_com,
8372 iocbq->iocb.ulpFCP2Rcvy);
8373 bf_set(wqe_lnk, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpXS);
8374 /* Always open the exchange */
8375 bf_set(wqe_xc, &wqe->fcp_iwrite.wqe_com, 0);
8376 bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE);
8377 bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com,
8378 LPFC_WQE_LENLOC_WORD4);
8379 bf_set(wqe_ebde_cnt, &wqe->fcp_iwrite.wqe_com, 0);
8380 bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpPU);
8381 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 1);
8382 if (iocbq->iocb_flag & LPFC_IO_OAS) {
8383 bf_set(wqe_oas, &wqe->fcp_iwrite.wqe_com, 1);
8384 if (phba->cfg_XLanePriority) {
8385 bf_set(wqe_ccpe, &wqe->fcp_iwrite.wqe_com, 1);
8386 bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
8387 (phba->cfg_XLanePriority << 1));
8391 case CMD_FCP_IREAD64_CR:
8392 /* word3 iocb=iotag wqe=payload_offset_len */
8393 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8394 bf_set(payload_offset_len, &wqe->fcp_iread,
8395 xmit_len + sizeof(struct fcp_rsp));
8396 bf_set(cmd_buff_len, &wqe->fcp_iread,
8398 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8399 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8400 bf_set(wqe_erp, &wqe->fcp_iread.wqe_com,
8401 iocbq->iocb.ulpFCP2Rcvy);
8402 bf_set(wqe_lnk, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpXS);
8403 /* Always open the exchange */
8404 bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
8405 bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ);
8406 bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com,
8407 LPFC_WQE_LENLOC_WORD4);
8408 bf_set(wqe_ebde_cnt, &wqe->fcp_iread.wqe_com, 0);
8409 bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpPU);
8410 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 1);
8411 if (iocbq->iocb_flag & LPFC_IO_OAS) {
8412 bf_set(wqe_oas, &wqe->fcp_iread.wqe_com, 1);
8413 if (phba->cfg_XLanePriority) {
8414 bf_set(wqe_ccpe, &wqe->fcp_iread.wqe_com, 1);
8415 bf_set(wqe_ccp, &wqe->fcp_iread.wqe_com,
8416 (phba->cfg_XLanePriority << 1));
8420 case CMD_FCP_ICMND64_CR:
8421 /* word3 iocb=iotag wqe=payload_offset_len */
8422 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8423 bf_set(payload_offset_len, &wqe->fcp_icmd,
8424 xmit_len + sizeof(struct fcp_rsp));
8425 bf_set(cmd_buff_len, &wqe->fcp_icmd,
8427 /* word3 iocb=IO_TAG wqe=reserved */
8428 bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0);
8429 /* Always open the exchange */
8430 bf_set(wqe_xc, &wqe->fcp_icmd.wqe_com, 0);
8431 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 1);
8432 bf_set(wqe_iod, &wqe->fcp_icmd.wqe_com, LPFC_WQE_IOD_WRITE);
8433 bf_set(wqe_qosd, &wqe->fcp_icmd.wqe_com, 1);
8434 bf_set(wqe_lenloc, &wqe->fcp_icmd.wqe_com,
8435 LPFC_WQE_LENLOC_NONE);
8436 bf_set(wqe_ebde_cnt, &wqe->fcp_icmd.wqe_com, 0);
8437 bf_set(wqe_erp, &wqe->fcp_icmd.wqe_com,
8438 iocbq->iocb.ulpFCP2Rcvy);
8439 if (iocbq->iocb_flag & LPFC_IO_OAS) {
8440 bf_set(wqe_oas, &wqe->fcp_icmd.wqe_com, 1);
8441 if (phba->cfg_XLanePriority) {
8442 bf_set(wqe_ccpe, &wqe->fcp_icmd.wqe_com, 1);
8443 bf_set(wqe_ccp, &wqe->fcp_icmd.wqe_com,
8444 (phba->cfg_XLanePriority << 1));
8448 case CMD_GEN_REQUEST64_CR:
8449 /* For this command calculate the xmit length of the
8453 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
8454 sizeof(struct ulp_bde64);
8455 for (i = 0; i < numBdes; i++) {
8456 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
8457 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
8459 xmit_len += bde.tus.f.bdeSize;
8461 /* word3 iocb=IO_TAG wqe=request_payload_len */
8462 wqe->gen_req.request_payload_len = xmit_len;
8463 /* word4 iocb=parameter wqe=relative_offset memcpy */
8464 /* word5 [rctl, type, df_ctl, la] copied in memcpy */
8465 /* word6 context tag copied in memcpy */
8466 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
8467 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
8468 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8469 "2015 Invalid CT %x command 0x%x\n",
8470 ct, iocbq->iocb.ulpCommand);
8473 bf_set(wqe_ct, &wqe->gen_req.wqe_com, 0);
8474 bf_set(wqe_tmo, &wqe->gen_req.wqe_com, iocbq->iocb.ulpTimeout);
8475 bf_set(wqe_pu, &wqe->gen_req.wqe_com, iocbq->iocb.ulpPU);
8476 bf_set(wqe_dbde, &wqe->gen_req.wqe_com, 1);
8477 bf_set(wqe_iod, &wqe->gen_req.wqe_com, LPFC_WQE_IOD_READ);
8478 bf_set(wqe_qosd, &wqe->gen_req.wqe_com, 1);
8479 bf_set(wqe_lenloc, &wqe->gen_req.wqe_com, LPFC_WQE_LENLOC_NONE);
8480 bf_set(wqe_ebde_cnt, &wqe->gen_req.wqe_com, 0);
8481 wqe->gen_req.max_response_payload_len = total_len - xmit_len;
8482 command_type = OTHER_COMMAND;
8484 case CMD_XMIT_ELS_RSP64_CX:
8485 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8486 /* words0-2 BDE memcpy */
8487 /* word3 iocb=iotag32 wqe=response_payload_len */
8488 wqe->xmit_els_rsp.response_payload_len = xmit_len;
8490 wqe->xmit_els_rsp.word4 = 0;
8491 /* word5 iocb=rsvd wge=did */
8492 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
8493 iocbq->iocb.un.xseq64.xmit_els_remoteID);
8495 if_type = bf_get(lpfc_sli_intf_if_type,
8496 &phba->sli4_hba.sli_intf);
8497 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8498 if (iocbq->vport->fc_flag & FC_PT2PT) {
8499 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
8500 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
8501 iocbq->vport->fc_myDID);
8502 if (iocbq->vport->fc_myDID == Fabric_DID) {
8504 &wqe->xmit_els_rsp.wqe_dest, 0);
8508 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com,
8509 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8510 bf_set(wqe_pu, &wqe->xmit_els_rsp.wqe_com, iocbq->iocb.ulpPU);
8511 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
8512 iocbq->iocb.unsli3.rcvsli3.ox_id);
8513 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
8514 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
8515 phba->vpi_ids[iocbq->vport->vpi]);
8516 bf_set(wqe_dbde, &wqe->xmit_els_rsp.wqe_com, 1);
8517 bf_set(wqe_iod, &wqe->xmit_els_rsp.wqe_com, LPFC_WQE_IOD_WRITE);
8518 bf_set(wqe_qosd, &wqe->xmit_els_rsp.wqe_com, 1);
8519 bf_set(wqe_lenloc, &wqe->xmit_els_rsp.wqe_com,
8520 LPFC_WQE_LENLOC_WORD3);
8521 bf_set(wqe_ebde_cnt, &wqe->xmit_els_rsp.wqe_com, 0);
8522 bf_set(wqe_rsp_temp_rpi, &wqe->xmit_els_rsp,
8523 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8524 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
8525 iocbq->context2)->virt);
8526 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
8527 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
8528 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
8529 iocbq->vport->fc_myDID);
8530 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com, 1);
8531 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
8532 phba->vpi_ids[phba->pport->vpi]);
8534 command_type = OTHER_COMMAND;
8536 case CMD_CLOSE_XRI_CN:
8537 case CMD_ABORT_XRI_CN:
8538 case CMD_ABORT_XRI_CX:
8539 /* words 0-2 memcpy should be 0 rserved */
8540 /* port will send abts */
8541 abrt_iotag = iocbq->iocb.un.acxri.abortContextTag;
8542 if (abrt_iotag != 0 && abrt_iotag <= phba->sli.last_iotag) {
8543 abrtiocbq = phba->sli.iocbq_lookup[abrt_iotag];
8544 fip = abrtiocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK;
8548 if ((iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN) || fip)
8550 * The link is down, or the command was ELS_FIP
8551 * so the fw does not need to send abts
8554 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
8556 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
8557 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
8558 /* word5 iocb=CONTEXT_TAG|IO_TAG wqe=reserved */
8559 wqe->abort_cmd.rsrvd5 = 0;
8560 bf_set(wqe_ct, &wqe->abort_cmd.wqe_com,
8561 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8562 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
8564 * The abort handler will send us CMD_ABORT_XRI_CN or
8565 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
8567 bf_set(wqe_cmnd, &wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
8568 bf_set(wqe_qosd, &wqe->abort_cmd.wqe_com, 1);
8569 bf_set(wqe_lenloc, &wqe->abort_cmd.wqe_com,
8570 LPFC_WQE_LENLOC_NONE);
8571 cmnd = CMD_ABORT_XRI_CX;
8572 command_type = OTHER_COMMAND;
8575 case CMD_XMIT_BLS_RSP64_CX:
8576 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8577 /* As BLS ABTS RSP WQE is very different from other WQEs,
8578 * we re-construct this WQE here based on information in
8579 * iocbq from scratch.
8581 memset(wqe, 0, sizeof(union lpfc_wqe));
8582 /* OX_ID is invariable to who sent ABTS to CT exchange */
8583 bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
8584 bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_rsp));
8585 if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_rsp) ==
8586 LPFC_ABTS_UNSOL_INT) {
8587 /* ABTS sent by initiator to CT exchange, the
8588 * RX_ID field will be filled with the newly
8589 * allocated responder XRI.
8591 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
8592 iocbq->sli4_xritag);
8594 /* ABTS sent by responder to CT exchange, the
8595 * RX_ID field will be filled with the responder
8598 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
8599 bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_rsp));
8601 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
8602 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
8605 bf_set(wqe_els_did, &wqe->xmit_bls_rsp.wqe_dest,
8607 bf_set(xmit_bls_rsp64_temprpi, &wqe->xmit_bls_rsp,
8608 iocbq->iocb.ulpContext);
8609 bf_set(wqe_ct, &wqe->xmit_bls_rsp.wqe_com, 1);
8610 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
8611 phba->vpi_ids[phba->pport->vpi]);
8612 bf_set(wqe_qosd, &wqe->xmit_bls_rsp.wqe_com, 1);
8613 bf_set(wqe_lenloc, &wqe->xmit_bls_rsp.wqe_com,
8614 LPFC_WQE_LENLOC_NONE);
8615 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
8616 command_type = OTHER_COMMAND;
8617 if (iocbq->iocb.un.xseq64.w5.hcsw.Rctl == FC_RCTL_BA_RJT) {
8618 bf_set(xmit_bls_rsp64_rjt_vspec, &wqe->xmit_bls_rsp,
8619 bf_get(lpfc_vndr_code, &iocbq->iocb.un.bls_rsp));
8620 bf_set(xmit_bls_rsp64_rjt_expc, &wqe->xmit_bls_rsp,
8621 bf_get(lpfc_rsn_expln, &iocbq->iocb.un.bls_rsp));
8622 bf_set(xmit_bls_rsp64_rjt_rsnc, &wqe->xmit_bls_rsp,
8623 bf_get(lpfc_rsn_code, &iocbq->iocb.un.bls_rsp));
8627 case CMD_XRI_ABORTED_CX:
8628 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
8629 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
8630 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
8631 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
8632 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
8634 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8635 "2014 Invalid command 0x%x\n",
8636 iocbq->iocb.ulpCommand);
8641 if (iocbq->iocb_flag & LPFC_IO_DIF_PASS)
8642 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_PASSTHRU);
8643 else if (iocbq->iocb_flag & LPFC_IO_DIF_STRIP)
8644 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_STRIP);
8645 else if (iocbq->iocb_flag & LPFC_IO_DIF_INSERT)
8646 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_INSERT);
8647 iocbq->iocb_flag &= ~(LPFC_IO_DIF_PASS | LPFC_IO_DIF_STRIP |
8648 LPFC_IO_DIF_INSERT);
8649 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
8650 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
8651 wqe->generic.wqe_com.abort_tag = abort_tag;
8652 bf_set(wqe_cmd_type, &wqe->generic.wqe_com, command_type);
8653 bf_set(wqe_cmnd, &wqe->generic.wqe_com, cmnd);
8654 bf_set(wqe_class, &wqe->generic.wqe_com, iocbq->iocb.ulpClass);
8655 bf_set(wqe_cqid, &wqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
8660 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
8661 * @phba: Pointer to HBA context object.
8662 * @ring_number: SLI ring number to issue iocb on.
8663 * @piocb: Pointer to command iocb.
8664 * @flag: Flag indicating if this command can be put into txq.
8666 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
8667 * an iocb command to an HBA with SLI-4 interface spec.
8669 * This function is called with hbalock held. The function will return success
8670 * after it successfully submit the iocb to firmware or after adding to the
8674 __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
8675 struct lpfc_iocbq *piocb, uint32_t flag)
8677 struct lpfc_sglq *sglq;
8679 struct lpfc_queue *wq;
8680 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
8682 lockdep_assert_held(&phba->hbalock);
8684 if (piocb->sli4_xritag == NO_XRI) {
8685 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
8686 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
8689 if (!list_empty(&pring->txq)) {
8690 if (!(flag & SLI_IOCB_RET_IOCB)) {
8691 __lpfc_sli_ringtx_put(phba,
8693 return IOCB_SUCCESS;
8698 sglq = __lpfc_sli_get_sglq(phba, piocb);
8700 if (!(flag & SLI_IOCB_RET_IOCB)) {
8701 __lpfc_sli_ringtx_put(phba,
8704 return IOCB_SUCCESS;
8710 } else if (piocb->iocb_flag & LPFC_IO_FCP) {
8711 /* These IO's already have an XRI and a mapped sgl. */
8715 * This is a continuation of a commandi,(CX) so this
8716 * sglq is on the active list
8718 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_lxritag);
8724 piocb->sli4_lxritag = sglq->sli4_lxritag;
8725 piocb->sli4_xritag = sglq->sli4_xritag;
8726 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocb, sglq))
8730 if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe))
8733 if ((piocb->iocb_flag & LPFC_IO_FCP) ||
8734 (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
8735 if (!phba->cfg_fof || (!(piocb->iocb_flag & LPFC_IO_OAS))) {
8736 wq = phba->sli4_hba.fcp_wq[piocb->fcp_wqidx];
8738 wq = phba->sli4_hba.oas_wq;
8740 if (lpfc_sli4_wq_put(wq, &wqe))
8743 if (unlikely(!phba->sli4_hba.els_wq))
8745 if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
8748 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
8754 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
8756 * This routine wraps the actual lockless version for issusing IOCB function
8757 * pointer from the lpfc_hba struct.
8760 * IOCB_ERROR - Error
8761 * IOCB_SUCCESS - Success
8765 __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
8766 struct lpfc_iocbq *piocb, uint32_t flag)
8768 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
8772 * lpfc_sli_api_table_setup - Set up sli api function jump table
8773 * @phba: The hba struct for which this call is being executed.
8774 * @dev_grp: The HBA PCI-Device group number.
8776 * This routine sets up the SLI interface API function jump table in @phba
8778 * Returns: 0 - success, -ENODEV - failure.
8781 lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
8785 case LPFC_PCI_DEV_LP:
8786 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
8787 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
8789 case LPFC_PCI_DEV_OC:
8790 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
8791 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
8794 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8795 "1419 Invalid HBA PCI-device group: 0x%x\n",
8800 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
8805 * lpfc_sli_calc_ring - Calculates which ring to use
8806 * @phba: Pointer to HBA context object.
8807 * @ring_number: Initial ring
8808 * @piocb: Pointer to command iocb.
8810 * For SLI4, FCP IO can deferred to one fo many WQs, based on
8811 * fcp_wqidx, thus we need to calculate the corresponding ring.
8812 * Since ABORTS must go on the same WQ of the command they are
8813 * aborting, we use command's fcp_wqidx.
8816 lpfc_sli_calc_ring(struct lpfc_hba *phba, uint32_t ring_number,
8817 struct lpfc_iocbq *piocb)
8819 if (phba->sli_rev < LPFC_SLI_REV4)
8822 if (piocb->iocb_flag & (LPFC_IO_FCP | LPFC_USE_FCPWQIDX)) {
8823 if (!(phba->cfg_fof) ||
8824 (!(piocb->iocb_flag & LPFC_IO_FOF))) {
8825 if (unlikely(!phba->sli4_hba.fcp_wq))
8826 return LPFC_HBA_ERROR;
8828 * for abort iocb fcp_wqidx should already
8829 * be setup based on what work queue we used.
8831 if (!(piocb->iocb_flag & LPFC_USE_FCPWQIDX))
8833 lpfc_sli4_scmd_to_wqidx_distr(phba,
8835 ring_number = MAX_SLI3_CONFIGURED_RINGS +
8838 if (unlikely(!phba->sli4_hba.oas_wq))
8839 return LPFC_HBA_ERROR;
8840 piocb->fcp_wqidx = 0;
8841 ring_number = LPFC_FCP_OAS_RING;
8848 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
8849 * @phba: Pointer to HBA context object.
8850 * @pring: Pointer to driver SLI ring object.
8851 * @piocb: Pointer to command iocb.
8852 * @flag: Flag indicating if this command can be put into txq.
8854 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
8855 * function. This function gets the hbalock and calls
8856 * __lpfc_sli_issue_iocb function and will return the error returned
8857 * by __lpfc_sli_issue_iocb function. This wrapper is used by
8858 * functions which do not hold hbalock.
8861 lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
8862 struct lpfc_iocbq *piocb, uint32_t flag)
8864 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
8865 struct lpfc_sli_ring *pring;
8866 struct lpfc_queue *fpeq;
8867 struct lpfc_eqe *eqe;
8868 unsigned long iflags;
8871 if (phba->sli_rev == LPFC_SLI_REV4) {
8872 ring_number = lpfc_sli_calc_ring(phba, ring_number, piocb);
8873 if (unlikely(ring_number == LPFC_HBA_ERROR))
8875 idx = piocb->fcp_wqidx;
8877 pring = &phba->sli.ring[ring_number];
8878 spin_lock_irqsave(&pring->ring_lock, iflags);
8879 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
8880 spin_unlock_irqrestore(&pring->ring_lock, iflags);
8882 if (lpfc_fcp_look_ahead && (piocb->iocb_flag & LPFC_IO_FCP)) {
8883 fcp_eq_hdl = &phba->sli4_hba.fcp_eq_hdl[idx];
8885 if (atomic_dec_and_test(&fcp_eq_hdl->
8888 /* Get associated EQ with this index */
8889 fpeq = phba->sli4_hba.hba_eq[idx];
8891 /* Turn off interrupts from this EQ */
8892 lpfc_sli4_eq_clr_intr(fpeq);
8895 * Process all the events on FCP EQ
8897 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
8898 lpfc_sli4_hba_handle_eqe(phba,
8900 fpeq->EQ_processed++;
8903 /* Always clear and re-arm the EQ */
8904 lpfc_sli4_eq_release(fpeq,
8907 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
8910 /* For now, SLI2/3 will still use hbalock */
8911 spin_lock_irqsave(&phba->hbalock, iflags);
8912 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
8913 spin_unlock_irqrestore(&phba->hbalock, iflags);
8919 * lpfc_extra_ring_setup - Extra ring setup function
8920 * @phba: Pointer to HBA context object.
8922 * This function is called while driver attaches with the
8923 * HBA to setup the extra ring. The extra ring is used
8924 * only when driver needs to support target mode functionality
8925 * or IP over FC functionalities.
8927 * This function is called with no lock held.
8930 lpfc_extra_ring_setup( struct lpfc_hba *phba)
8932 struct lpfc_sli *psli;
8933 struct lpfc_sli_ring *pring;
8937 /* Adjust cmd/rsp ring iocb entries more evenly */
8939 /* Take some away from the FCP ring */
8940 pring = &psli->ring[psli->fcp_ring];
8941 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8942 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8943 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8944 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
8946 /* and give them to the extra ring */
8947 pring = &psli->ring[psli->extra_ring];
8949 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8950 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8951 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8952 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
8954 /* Setup default profile for this ring */
8955 pring->iotag_max = 4096;
8956 pring->num_mask = 1;
8957 pring->prt[0].profile = 0; /* Mask 0 */
8958 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
8959 pring->prt[0].type = phba->cfg_multi_ring_type;
8960 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
8964 /* lpfc_sli_abts_err_handler - handle a failed ABTS request from an SLI3 port.
8965 * @phba: Pointer to HBA context object.
8966 * @iocbq: Pointer to iocb object.
8968 * The async_event handler calls this routine when it receives
8969 * an ASYNC_STATUS_CN event from the port. The port generates
8970 * this event when an Abort Sequence request to an rport fails
8971 * twice in succession. The abort could be originated by the
8972 * driver or by the port. The ABTS could have been for an ELS
8973 * or FCP IO. The port only generates this event when an ABTS
8974 * fails to complete after one retry.
8977 lpfc_sli_abts_err_handler(struct lpfc_hba *phba,
8978 struct lpfc_iocbq *iocbq)
8980 struct lpfc_nodelist *ndlp = NULL;
8981 uint16_t rpi = 0, vpi = 0;
8982 struct lpfc_vport *vport = NULL;
8984 /* The rpi in the ulpContext is vport-sensitive. */
8985 vpi = iocbq->iocb.un.asyncstat.sub_ctxt_tag;
8986 rpi = iocbq->iocb.ulpContext;
8988 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8989 "3092 Port generated ABTS async event "
8990 "on vpi %d rpi %d status 0x%x\n",
8991 vpi, rpi, iocbq->iocb.ulpStatus);
8993 vport = lpfc_find_vport_by_vpid(phba, vpi);
8996 ndlp = lpfc_findnode_rpi(vport, rpi);
8997 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
9000 if (iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT)
9001 lpfc_sli_abts_recover_port(vport, ndlp);
9005 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9006 "3095 Event Context not found, no "
9007 "action on vpi %d rpi %d status 0x%x, reason 0x%x\n",
9008 iocbq->iocb.ulpContext, iocbq->iocb.ulpStatus,
9012 /* lpfc_sli4_abts_err_handler - handle a failed ABTS request from an SLI4 port.
9013 * @phba: pointer to HBA context object.
9014 * @ndlp: nodelist pointer for the impacted rport.
9015 * @axri: pointer to the wcqe containing the failed exchange.
9017 * The driver calls this routine when it receives an ABORT_XRI_FCP CQE from the
9018 * port. The port generates this event when an abort exchange request to an
9019 * rport fails twice in succession with no reply. The abort could be originated
9020 * by the driver or by the port. The ABTS could have been for an ELS or FCP IO.
9023 lpfc_sli4_abts_err_handler(struct lpfc_hba *phba,
9024 struct lpfc_nodelist *ndlp,
9025 struct sli4_wcqe_xri_aborted *axri)
9027 struct lpfc_vport *vport;
9028 uint32_t ext_status = 0;
9030 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
9031 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9032 "3115 Node Context not found, driver "
9033 "ignoring abts err event\n");
9037 vport = ndlp->vport;
9038 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9039 "3116 Port generated FCP XRI ABORT event on "
9040 "vpi %d rpi %d xri x%x status 0x%x parameter x%x\n",
9041 ndlp->vport->vpi, phba->sli4_hba.rpi_ids[ndlp->nlp_rpi],
9042 bf_get(lpfc_wcqe_xa_xri, axri),
9043 bf_get(lpfc_wcqe_xa_status, axri),
9047 * Catch the ABTS protocol failure case. Older OCe FW releases returned
9048 * LOCAL_REJECT and 0 for a failed ABTS exchange and later OCe and
9049 * LPe FW releases returned LOCAL_REJECT and SEQUENCE_TIMEOUT.
9051 ext_status = axri->parameter & IOERR_PARAM_MASK;
9052 if ((bf_get(lpfc_wcqe_xa_status, axri) == IOSTAT_LOCAL_REJECT) &&
9053 ((ext_status == IOERR_SEQUENCE_TIMEOUT) || (ext_status == 0)))
9054 lpfc_sli_abts_recover_port(vport, ndlp);
9058 * lpfc_sli_async_event_handler - ASYNC iocb handler function
9059 * @phba: Pointer to HBA context object.
9060 * @pring: Pointer to driver SLI ring object.
9061 * @iocbq: Pointer to iocb object.
9063 * This function is called by the slow ring event handler
9064 * function when there is an ASYNC event iocb in the ring.
9065 * This function is called with no lock held.
9066 * Currently this function handles only temperature related
9067 * ASYNC events. The function decodes the temperature sensor
9068 * event message and posts events for the management applications.
9071 lpfc_sli_async_event_handler(struct lpfc_hba * phba,
9072 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
9076 struct temp_event temp_event_data;
9077 struct Scsi_Host *shost;
9080 icmd = &iocbq->iocb;
9081 evt_code = icmd->un.asyncstat.evt_code;
9084 case ASYNC_TEMP_WARN:
9085 case ASYNC_TEMP_SAFE:
9086 temp_event_data.data = (uint32_t) icmd->ulpContext;
9087 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
9088 if (evt_code == ASYNC_TEMP_WARN) {
9089 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
9090 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
9091 "0347 Adapter is very hot, please take "
9092 "corrective action. temperature : %d Celsius\n",
9093 (uint32_t) icmd->ulpContext);
9095 temp_event_data.event_code = LPFC_NORMAL_TEMP;
9096 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
9097 "0340 Adapter temperature is OK now. "
9098 "temperature : %d Celsius\n",
9099 (uint32_t) icmd->ulpContext);
9102 /* Send temperature change event to applications */
9103 shost = lpfc_shost_from_vport(phba->pport);
9104 fc_host_post_vendor_event(shost, fc_get_event_number(),
9105 sizeof(temp_event_data), (char *) &temp_event_data,
9108 case ASYNC_STATUS_CN:
9109 lpfc_sli_abts_err_handler(phba, iocbq);
9112 iocb_w = (uint32_t *) icmd;
9113 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9114 "0346 Ring %d handler: unexpected ASYNC_STATUS"
9116 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
9117 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
9118 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
9119 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
9120 pring->ringno, icmd->un.asyncstat.evt_code,
9121 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
9122 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
9123 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
9124 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
9132 * lpfc_sli_setup - SLI ring setup function
9133 * @phba: Pointer to HBA context object.
9135 * lpfc_sli_setup sets up rings of the SLI interface with
9136 * number of iocbs per ring and iotags. This function is
9137 * called while driver attach to the HBA and before the
9138 * interrupts are enabled. So there is no need for locking.
9140 * This function always returns 0.
9143 lpfc_sli_setup(struct lpfc_hba *phba)
9145 int i, totiocbsize = 0;
9146 struct lpfc_sli *psli = &phba->sli;
9147 struct lpfc_sli_ring *pring;
9149 psli->num_rings = MAX_SLI3_CONFIGURED_RINGS;
9150 if (phba->sli_rev == LPFC_SLI_REV4)
9151 psli->num_rings += phba->cfg_fcp_io_channel;
9153 psli->fcp_ring = LPFC_FCP_RING;
9154 psli->next_ring = LPFC_FCP_NEXT_RING;
9155 psli->extra_ring = LPFC_EXTRA_RING;
9157 psli->iocbq_lookup = NULL;
9158 psli->iocbq_lookup_len = 0;
9159 psli->last_iotag = 0;
9161 for (i = 0; i < psli->num_rings; i++) {
9162 pring = &psli->ring[i];
9164 case LPFC_FCP_RING: /* ring 0 - FCP */
9165 /* numCiocb and numRiocb are used in config_port */
9166 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
9167 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
9168 pring->sli.sli3.numCiocb +=
9169 SLI2_IOCB_CMD_R1XTRA_ENTRIES;
9170 pring->sli.sli3.numRiocb +=
9171 SLI2_IOCB_RSP_R1XTRA_ENTRIES;
9172 pring->sli.sli3.numCiocb +=
9173 SLI2_IOCB_CMD_R3XTRA_ENTRIES;
9174 pring->sli.sli3.numRiocb +=
9175 SLI2_IOCB_RSP_R3XTRA_ENTRIES;
9176 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
9177 SLI3_IOCB_CMD_SIZE :
9179 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
9180 SLI3_IOCB_RSP_SIZE :
9182 pring->iotag_ctr = 0;
9184 (phba->cfg_hba_queue_depth * 2);
9185 pring->fast_iotag = pring->iotag_max;
9186 pring->num_mask = 0;
9188 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
9189 /* numCiocb and numRiocb are used in config_port */
9190 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
9191 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
9192 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
9193 SLI3_IOCB_CMD_SIZE :
9195 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
9196 SLI3_IOCB_RSP_SIZE :
9198 pring->iotag_max = phba->cfg_hba_queue_depth;
9199 pring->num_mask = 0;
9201 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
9202 /* numCiocb and numRiocb are used in config_port */
9203 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
9204 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
9205 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
9206 SLI3_IOCB_CMD_SIZE :
9208 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
9209 SLI3_IOCB_RSP_SIZE :
9211 pring->fast_iotag = 0;
9212 pring->iotag_ctr = 0;
9213 pring->iotag_max = 4096;
9214 pring->lpfc_sli_rcv_async_status =
9215 lpfc_sli_async_event_handler;
9216 pring->num_mask = LPFC_MAX_RING_MASK;
9217 pring->prt[0].profile = 0; /* Mask 0 */
9218 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
9219 pring->prt[0].type = FC_TYPE_ELS;
9220 pring->prt[0].lpfc_sli_rcv_unsol_event =
9221 lpfc_els_unsol_event;
9222 pring->prt[1].profile = 0; /* Mask 1 */
9223 pring->prt[1].rctl = FC_RCTL_ELS_REP;
9224 pring->prt[1].type = FC_TYPE_ELS;
9225 pring->prt[1].lpfc_sli_rcv_unsol_event =
9226 lpfc_els_unsol_event;
9227 pring->prt[2].profile = 0; /* Mask 2 */
9228 /* NameServer Inquiry */
9229 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
9231 pring->prt[2].type = FC_TYPE_CT;
9232 pring->prt[2].lpfc_sli_rcv_unsol_event =
9233 lpfc_ct_unsol_event;
9234 pring->prt[3].profile = 0; /* Mask 3 */
9235 /* NameServer response */
9236 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
9238 pring->prt[3].type = FC_TYPE_CT;
9239 pring->prt[3].lpfc_sli_rcv_unsol_event =
9240 lpfc_ct_unsol_event;
9243 totiocbsize += (pring->sli.sli3.numCiocb *
9244 pring->sli.sli3.sizeCiocb) +
9245 (pring->sli.sli3.numRiocb * pring->sli.sli3.sizeRiocb);
9247 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
9248 /* Too many cmd / rsp ring entries in SLI2 SLIM */
9249 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
9250 "SLI2 SLIM Data: x%x x%lx\n",
9251 phba->brd_no, totiocbsize,
9252 (unsigned long) MAX_SLIM_IOCB_SIZE);
9254 if (phba->cfg_multi_ring_support == 2)
9255 lpfc_extra_ring_setup(phba);
9261 * lpfc_sli_queue_setup - Queue initialization function
9262 * @phba: Pointer to HBA context object.
9264 * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each
9265 * ring. This function also initializes ring indices of each ring.
9266 * This function is called during the initialization of the SLI
9267 * interface of an HBA.
9268 * This function is called with no lock held and always returns
9272 lpfc_sli_queue_setup(struct lpfc_hba *phba)
9274 struct lpfc_sli *psli;
9275 struct lpfc_sli_ring *pring;
9279 spin_lock_irq(&phba->hbalock);
9280 INIT_LIST_HEAD(&psli->mboxq);
9281 INIT_LIST_HEAD(&psli->mboxq_cmpl);
9282 /* Initialize list headers for txq and txcmplq as double linked lists */
9283 for (i = 0; i < psli->num_rings; i++) {
9284 pring = &psli->ring[i];
9286 pring->sli.sli3.next_cmdidx = 0;
9287 pring->sli.sli3.local_getidx = 0;
9288 pring->sli.sli3.cmdidx = 0;
9290 INIT_LIST_HEAD(&pring->txq);
9291 INIT_LIST_HEAD(&pring->txcmplq);
9292 INIT_LIST_HEAD(&pring->iocb_continueq);
9293 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
9294 INIT_LIST_HEAD(&pring->postbufq);
9295 spin_lock_init(&pring->ring_lock);
9297 spin_unlock_irq(&phba->hbalock);
9302 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
9303 * @phba: Pointer to HBA context object.
9305 * This routine flushes the mailbox command subsystem. It will unconditionally
9306 * flush all the mailbox commands in the three possible stages in the mailbox
9307 * command sub-system: pending mailbox command queue; the outstanding mailbox
9308 * command; and completed mailbox command queue. It is caller's responsibility
9309 * to make sure that the driver is in the proper state to flush the mailbox
9310 * command sub-system. Namely, the posting of mailbox commands into the
9311 * pending mailbox command queue from the various clients must be stopped;
9312 * either the HBA is in a state that it will never works on the outstanding
9313 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
9314 * mailbox command has been completed.
9317 lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
9319 LIST_HEAD(completions);
9320 struct lpfc_sli *psli = &phba->sli;
9322 unsigned long iflag;
9324 /* Flush all the mailbox commands in the mbox system */
9325 spin_lock_irqsave(&phba->hbalock, iflag);
9326 /* The pending mailbox command queue */
9327 list_splice_init(&phba->sli.mboxq, &completions);
9328 /* The outstanding active mailbox command */
9329 if (psli->mbox_active) {
9330 list_add_tail(&psli->mbox_active->list, &completions);
9331 psli->mbox_active = NULL;
9332 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9334 /* The completed mailbox command queue */
9335 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
9336 spin_unlock_irqrestore(&phba->hbalock, iflag);
9338 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
9339 while (!list_empty(&completions)) {
9340 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
9341 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
9343 pmb->mbox_cmpl(phba, pmb);
9348 * lpfc_sli_host_down - Vport cleanup function
9349 * @vport: Pointer to virtual port object.
9351 * lpfc_sli_host_down is called to clean up the resources
9352 * associated with a vport before destroying virtual
9353 * port data structures.
9354 * This function does following operations:
9355 * - Free discovery resources associated with this virtual
9357 * - Free iocbs associated with this virtual port in
9359 * - Send abort for all iocb commands associated with this
9362 * This function is called with no lock held and always returns 1.
9365 lpfc_sli_host_down(struct lpfc_vport *vport)
9367 LIST_HEAD(completions);
9368 struct lpfc_hba *phba = vport->phba;
9369 struct lpfc_sli *psli = &phba->sli;
9370 struct lpfc_sli_ring *pring;
9371 struct lpfc_iocbq *iocb, *next_iocb;
9373 unsigned long flags = 0;
9374 uint16_t prev_pring_flag;
9376 lpfc_cleanup_discovery_resources(vport);
9378 spin_lock_irqsave(&phba->hbalock, flags);
9379 for (i = 0; i < psli->num_rings; i++) {
9380 pring = &psli->ring[i];
9381 prev_pring_flag = pring->flag;
9382 /* Only slow rings */
9383 if (pring->ringno == LPFC_ELS_RING) {
9384 pring->flag |= LPFC_DEFERRED_RING_EVENT;
9385 /* Set the lpfc data pending flag */
9386 set_bit(LPFC_DATA_READY, &phba->data_flags);
9389 * Error everything on the txq since these iocbs have not been
9390 * given to the FW yet.
9392 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
9393 if (iocb->vport != vport)
9395 list_move_tail(&iocb->list, &completions);
9398 /* Next issue ABTS for everything on the txcmplq */
9399 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq,
9401 if (iocb->vport != vport)
9403 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
9406 pring->flag = prev_pring_flag;
9409 spin_unlock_irqrestore(&phba->hbalock, flags);
9411 /* Cancel all the IOCBs from the completions list */
9412 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9418 * lpfc_sli_hba_down - Resource cleanup function for the HBA
9419 * @phba: Pointer to HBA context object.
9421 * This function cleans up all iocb, buffers, mailbox commands
9422 * while shutting down the HBA. This function is called with no
9423 * lock held and always returns 1.
9424 * This function does the following to cleanup driver resources:
9425 * - Free discovery resources for each virtual port
9426 * - Cleanup any pending fabric iocbs
9427 * - Iterate through the iocb txq and free each entry
9429 * - Free up any buffer posted to the HBA
9430 * - Free mailbox commands in the mailbox queue.
9433 lpfc_sli_hba_down(struct lpfc_hba *phba)
9435 LIST_HEAD(completions);
9436 struct lpfc_sli *psli = &phba->sli;
9437 struct lpfc_sli_ring *pring;
9438 struct lpfc_dmabuf *buf_ptr;
9439 unsigned long flags = 0;
9442 /* Shutdown the mailbox command sub-system */
9443 lpfc_sli_mbox_sys_shutdown(phba, LPFC_MBX_WAIT);
9445 lpfc_hba_down_prep(phba);
9447 lpfc_fabric_abort_hba(phba);
9449 spin_lock_irqsave(&phba->hbalock, flags);
9450 for (i = 0; i < psli->num_rings; i++) {
9451 pring = &psli->ring[i];
9452 /* Only slow rings */
9453 if (pring->ringno == LPFC_ELS_RING) {
9454 pring->flag |= LPFC_DEFERRED_RING_EVENT;
9455 /* Set the lpfc data pending flag */
9456 set_bit(LPFC_DATA_READY, &phba->data_flags);
9460 * Error everything on the txq since these iocbs have not been
9461 * given to the FW yet.
9463 list_splice_init(&pring->txq, &completions);
9465 spin_unlock_irqrestore(&phba->hbalock, flags);
9467 /* Cancel all the IOCBs from the completions list */
9468 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9471 spin_lock_irqsave(&phba->hbalock, flags);
9472 list_splice_init(&phba->elsbuf, &completions);
9473 phba->elsbuf_cnt = 0;
9474 phba->elsbuf_prev_cnt = 0;
9475 spin_unlock_irqrestore(&phba->hbalock, flags);
9477 while (!list_empty(&completions)) {
9478 list_remove_head(&completions, buf_ptr,
9479 struct lpfc_dmabuf, list);
9480 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
9484 /* Return any active mbox cmds */
9485 del_timer_sync(&psli->mbox_tmo);
9487 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
9488 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
9489 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
9495 * lpfc_sli_pcimem_bcopy - SLI memory copy function
9496 * @srcp: Source memory pointer.
9497 * @destp: Destination memory pointer.
9498 * @cnt: Number of words required to be copied.
9500 * This function is used for copying data between driver memory
9501 * and the SLI memory. This function also changes the endianness
9502 * of each word if native endianness is different from SLI
9503 * endianness. This function can be called with or without
9507 lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
9509 uint32_t *src = srcp;
9510 uint32_t *dest = destp;
9514 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
9516 ldata = le32_to_cpu(ldata);
9525 * lpfc_sli_bemem_bcopy - SLI memory copy function
9526 * @srcp: Source memory pointer.
9527 * @destp: Destination memory pointer.
9528 * @cnt: Number of words required to be copied.
9530 * This function is used for copying data between a data structure
9531 * with big endian representation to local endianness.
9532 * This function can be called with or without lock.
9535 lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
9537 uint32_t *src = srcp;
9538 uint32_t *dest = destp;
9542 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
9544 ldata = be32_to_cpu(ldata);
9552 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
9553 * @phba: Pointer to HBA context object.
9554 * @pring: Pointer to driver SLI ring object.
9555 * @mp: Pointer to driver buffer object.
9557 * This function is called with no lock held.
9558 * It always return zero after adding the buffer to the postbufq
9562 lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9563 struct lpfc_dmabuf *mp)
9565 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
9567 spin_lock_irq(&phba->hbalock);
9568 list_add_tail(&mp->list, &pring->postbufq);
9569 pring->postbufq_cnt++;
9570 spin_unlock_irq(&phba->hbalock);
9575 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
9576 * @phba: Pointer to HBA context object.
9578 * When HBQ is enabled, buffers are searched based on tags. This function
9579 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
9580 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
9581 * does not conflict with tags of buffer posted for unsolicited events.
9582 * The function returns the allocated tag. The function is called with
9586 lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
9588 spin_lock_irq(&phba->hbalock);
9589 phba->buffer_tag_count++;
9591 * Always set the QUE_BUFTAG_BIT to distiguish between
9592 * a tag assigned by HBQ.
9594 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
9595 spin_unlock_irq(&phba->hbalock);
9596 return phba->buffer_tag_count;
9600 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
9601 * @phba: Pointer to HBA context object.
9602 * @pring: Pointer to driver SLI ring object.
9605 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
9606 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
9607 * iocb is posted to the response ring with the tag of the buffer.
9608 * This function searches the pring->postbufq list using the tag
9609 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
9610 * iocb. If the buffer is found then lpfc_dmabuf object of the
9611 * buffer is returned to the caller else NULL is returned.
9612 * This function is called with no lock held.
9614 struct lpfc_dmabuf *
9615 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9618 struct lpfc_dmabuf *mp, *next_mp;
9619 struct list_head *slp = &pring->postbufq;
9621 /* Search postbufq, from the beginning, looking for a match on tag */
9622 spin_lock_irq(&phba->hbalock);
9623 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
9624 if (mp->buffer_tag == tag) {
9625 list_del_init(&mp->list);
9626 pring->postbufq_cnt--;
9627 spin_unlock_irq(&phba->hbalock);
9632 spin_unlock_irq(&phba->hbalock);
9633 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9634 "0402 Cannot find virtual addr for buffer tag on "
9635 "ring %d Data x%lx x%p x%p x%x\n",
9636 pring->ringno, (unsigned long) tag,
9637 slp->next, slp->prev, pring->postbufq_cnt);
9643 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
9644 * @phba: Pointer to HBA context object.
9645 * @pring: Pointer to driver SLI ring object.
9646 * @phys: DMA address of the buffer.
9648 * This function searches the buffer list using the dma_address
9649 * of unsolicited event to find the driver's lpfc_dmabuf object
9650 * corresponding to the dma_address. The function returns the
9651 * lpfc_dmabuf object if a buffer is found else it returns NULL.
9652 * This function is called by the ct and els unsolicited event
9653 * handlers to get the buffer associated with the unsolicited
9656 * This function is called with no lock held.
9658 struct lpfc_dmabuf *
9659 lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9662 struct lpfc_dmabuf *mp, *next_mp;
9663 struct list_head *slp = &pring->postbufq;
9665 /* Search postbufq, from the beginning, looking for a match on phys */
9666 spin_lock_irq(&phba->hbalock);
9667 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
9668 if (mp->phys == phys) {
9669 list_del_init(&mp->list);
9670 pring->postbufq_cnt--;
9671 spin_unlock_irq(&phba->hbalock);
9676 spin_unlock_irq(&phba->hbalock);
9677 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9678 "0410 Cannot find virtual addr for mapped buf on "
9679 "ring %d Data x%llx x%p x%p x%x\n",
9680 pring->ringno, (unsigned long long)phys,
9681 slp->next, slp->prev, pring->postbufq_cnt);
9686 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
9687 * @phba: Pointer to HBA context object.
9688 * @cmdiocb: Pointer to driver command iocb object.
9689 * @rspiocb: Pointer to driver response iocb object.
9691 * This function is the completion handler for the abort iocbs for
9692 * ELS commands. This function is called from the ELS ring event
9693 * handler with no lock held. This function frees memory resources
9694 * associated with the abort iocb.
9697 lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9698 struct lpfc_iocbq *rspiocb)
9700 IOCB_t *irsp = &rspiocb->iocb;
9701 uint16_t abort_iotag, abort_context;
9702 struct lpfc_iocbq *abort_iocb = NULL;
9704 if (irsp->ulpStatus) {
9707 * Assume that the port already completed and returned, or
9708 * will return the iocb. Just Log the message.
9710 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
9711 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
9713 spin_lock_irq(&phba->hbalock);
9714 if (phba->sli_rev < LPFC_SLI_REV4) {
9715 if (abort_iotag != 0 &&
9716 abort_iotag <= phba->sli.last_iotag)
9718 phba->sli.iocbq_lookup[abort_iotag];
9720 /* For sli4 the abort_tag is the XRI,
9721 * so the abort routine puts the iotag of the iocb
9722 * being aborted in the context field of the abort
9725 abort_iocb = phba->sli.iocbq_lookup[abort_context];
9727 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI,
9728 "0327 Cannot abort els iocb %p "
9729 "with tag %x context %x, abort status %x, "
9731 abort_iocb, abort_iotag, abort_context,
9732 irsp->ulpStatus, irsp->un.ulpWord[4]);
9734 spin_unlock_irq(&phba->hbalock);
9736 lpfc_sli_release_iocbq(phba, cmdiocb);
9741 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
9742 * @phba: Pointer to HBA context object.
9743 * @cmdiocb: Pointer to driver command iocb object.
9744 * @rspiocb: Pointer to driver response iocb object.
9746 * The function is called from SLI ring event handler with no
9747 * lock held. This function is the completion handler for ELS commands
9748 * which are aborted. The function frees memory resources used for
9749 * the aborted ELS commands.
9752 lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9753 struct lpfc_iocbq *rspiocb)
9755 IOCB_t *irsp = &rspiocb->iocb;
9757 /* ELS cmd tag <ulpIoTag> completes */
9758 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
9759 "0139 Ignoring ELS cmd tag x%x completion Data: "
9761 irsp->ulpIoTag, irsp->ulpStatus,
9762 irsp->un.ulpWord[4], irsp->ulpTimeout);
9763 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
9764 lpfc_ct_free_iocb(phba, cmdiocb);
9766 lpfc_els_free_iocb(phba, cmdiocb);
9771 * lpfc_sli_abort_iotag_issue - Issue abort for a command iocb
9772 * @phba: Pointer to HBA context object.
9773 * @pring: Pointer to driver SLI ring object.
9774 * @cmdiocb: Pointer to driver command iocb object.
9776 * This function issues an abort iocb for the provided command iocb down to
9777 * the port. Other than the case the outstanding command iocb is an abort
9778 * request, this function issues abort out unconditionally. This function is
9779 * called with hbalock held. The function returns 0 when it fails due to
9780 * memory allocation failure or when the command iocb is an abort request.
9783 lpfc_sli_abort_iotag_issue(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9784 struct lpfc_iocbq *cmdiocb)
9786 struct lpfc_vport *vport = cmdiocb->vport;
9787 struct lpfc_iocbq *abtsiocbp;
9788 IOCB_t *icmd = NULL;
9789 IOCB_t *iabt = NULL;
9792 unsigned long iflags;
9794 lockdep_assert_held(&phba->hbalock);
9797 * There are certain command types we don't want to abort. And we
9798 * don't want to abort commands that are already in the process of
9801 icmd = &cmdiocb->iocb;
9802 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
9803 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
9804 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
9807 /* issue ABTS for this IOCB based on iotag */
9808 abtsiocbp = __lpfc_sli_get_iocbq(phba);
9809 if (abtsiocbp == NULL)
9812 /* This signals the response to set the correct status
9813 * before calling the completion handler
9815 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
9817 iabt = &abtsiocbp->iocb;
9818 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
9819 iabt->un.acxri.abortContextTag = icmd->ulpContext;
9820 if (phba->sli_rev == LPFC_SLI_REV4) {
9821 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
9822 iabt->un.acxri.abortContextTag = cmdiocb->iotag;
9825 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
9827 iabt->ulpClass = icmd->ulpClass;
9829 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
9830 abtsiocbp->fcp_wqidx = cmdiocb->fcp_wqidx;
9831 if (cmdiocb->iocb_flag & LPFC_IO_FCP)
9832 abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
9833 if (cmdiocb->iocb_flag & LPFC_IO_FOF)
9834 abtsiocbp->iocb_flag |= LPFC_IO_FOF;
9836 if (phba->link_state >= LPFC_LINK_UP)
9837 iabt->ulpCommand = CMD_ABORT_XRI_CN;
9839 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
9841 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
9843 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
9844 "0339 Abort xri x%x, original iotag x%x, "
9845 "abort cmd iotag x%x\n",
9846 iabt->un.acxri.abortIoTag,
9847 iabt->un.acxri.abortContextTag,
9850 if (phba->sli_rev == LPFC_SLI_REV4) {
9852 lpfc_sli_calc_ring(phba, pring->ringno, abtsiocbp);
9853 if (unlikely(ring_number == LPFC_HBA_ERROR))
9855 pring = &phba->sli.ring[ring_number];
9856 /* Note: both hbalock and ring_lock need to be set here */
9857 spin_lock_irqsave(&pring->ring_lock, iflags);
9858 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
9860 spin_unlock_irqrestore(&pring->ring_lock, iflags);
9862 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
9867 __lpfc_sli_release_iocbq(phba, abtsiocbp);
9870 * Caller to this routine should check for IOCB_ERROR
9871 * and handle it properly. This routine no longer removes
9872 * iocb off txcmplq and call compl in case of IOCB_ERROR.
9878 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
9879 * @phba: Pointer to HBA context object.
9880 * @pring: Pointer to driver SLI ring object.
9881 * @cmdiocb: Pointer to driver command iocb object.
9883 * This function issues an abort iocb for the provided command iocb. In case
9884 * of unloading, the abort iocb will not be issued to commands on the ELS
9885 * ring. Instead, the callback function shall be changed to those commands
9886 * so that nothing happens when them finishes. This function is called with
9887 * hbalock held. The function returns 0 when the command iocb is an abort
9891 lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9892 struct lpfc_iocbq *cmdiocb)
9894 struct lpfc_vport *vport = cmdiocb->vport;
9895 int retval = IOCB_ERROR;
9896 IOCB_t *icmd = NULL;
9898 lockdep_assert_held(&phba->hbalock);
9901 * There are certain command types we don't want to abort. And we
9902 * don't want to abort commands that are already in the process of
9905 icmd = &cmdiocb->iocb;
9906 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
9907 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
9908 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
9912 * If we're unloading, don't abort iocb on the ELS ring, but change
9913 * the callback so that nothing happens when it finishes.
9915 if ((vport->load_flag & FC_UNLOADING) &&
9916 (pring->ringno == LPFC_ELS_RING)) {
9917 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
9918 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
9920 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
9921 goto abort_iotag_exit;
9924 /* Now, we try to issue the abort to the cmdiocb out */
9925 retval = lpfc_sli_abort_iotag_issue(phba, pring, cmdiocb);
9929 * Caller to this routine should check for IOCB_ERROR
9930 * and handle it properly. This routine no longer removes
9931 * iocb off txcmplq and call compl in case of IOCB_ERROR.
9937 * lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
9938 * @phba: pointer to lpfc HBA data structure.
9940 * This routine will abort all pending and outstanding iocbs to an HBA.
9943 lpfc_sli_hba_iocb_abort(struct lpfc_hba *phba)
9945 struct lpfc_sli *psli = &phba->sli;
9946 struct lpfc_sli_ring *pring;
9949 for (i = 0; i < psli->num_rings; i++) {
9950 pring = &psli->ring[i];
9951 lpfc_sli_abort_iocb_ring(phba, pring);
9956 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
9957 * @iocbq: Pointer to driver iocb object.
9958 * @vport: Pointer to driver virtual port object.
9959 * @tgt_id: SCSI ID of the target.
9960 * @lun_id: LUN ID of the scsi device.
9961 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
9963 * This function acts as an iocb filter for functions which abort or count
9964 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
9965 * 0 if the filtering criteria is met for the given iocb and will return
9966 * 1 if the filtering criteria is not met.
9967 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
9968 * given iocb is for the SCSI device specified by vport, tgt_id and
9970 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
9971 * given iocb is for the SCSI target specified by vport and tgt_id
9973 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
9974 * given iocb is for the SCSI host associated with the given vport.
9975 * This function is called with no locks held.
9978 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
9979 uint16_t tgt_id, uint64_t lun_id,
9980 lpfc_ctx_cmd ctx_cmd)
9982 struct lpfc_scsi_buf *lpfc_cmd;
9985 if (!(iocbq->iocb_flag & LPFC_IO_FCP))
9988 if (iocbq->vport != vport)
9991 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
9993 if (lpfc_cmd->pCmd == NULL)
9998 if ((lpfc_cmd->rdata->pnode) &&
9999 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
10000 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
10004 if ((lpfc_cmd->rdata->pnode) &&
10005 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
10008 case LPFC_CTX_HOST:
10012 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
10013 __func__, ctx_cmd);
10021 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
10022 * @vport: Pointer to virtual port.
10023 * @tgt_id: SCSI ID of the target.
10024 * @lun_id: LUN ID of the scsi device.
10025 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
10027 * This function returns number of FCP commands pending for the vport.
10028 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
10029 * commands pending on the vport associated with SCSI device specified
10030 * by tgt_id and lun_id parameters.
10031 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
10032 * commands pending on the vport associated with SCSI target specified
10033 * by tgt_id parameter.
10034 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
10035 * commands pending on the vport.
10036 * This function returns the number of iocbs which satisfy the filter.
10037 * This function is called without any lock held.
10040 lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
10041 lpfc_ctx_cmd ctx_cmd)
10043 struct lpfc_hba *phba = vport->phba;
10044 struct lpfc_iocbq *iocbq;
10047 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
10048 iocbq = phba->sli.iocbq_lookup[i];
10050 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
10059 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
10060 * @phba: Pointer to HBA context object
10061 * @cmdiocb: Pointer to command iocb object.
10062 * @rspiocb: Pointer to response iocb object.
10064 * This function is called when an aborted FCP iocb completes. This
10065 * function is called by the ring event handler with no lock held.
10066 * This function frees the iocb.
10069 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
10070 struct lpfc_iocbq *rspiocb)
10072 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10073 "3096 ABORT_XRI_CN completing on rpi x%x "
10074 "original iotag x%x, abort cmd iotag x%x "
10075 "status 0x%x, reason 0x%x\n",
10076 cmdiocb->iocb.un.acxri.abortContextTag,
10077 cmdiocb->iocb.un.acxri.abortIoTag,
10078 cmdiocb->iotag, rspiocb->iocb.ulpStatus,
10079 rspiocb->iocb.un.ulpWord[4]);
10080 lpfc_sli_release_iocbq(phba, cmdiocb);
10085 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
10086 * @vport: Pointer to virtual port.
10087 * @pring: Pointer to driver SLI ring object.
10088 * @tgt_id: SCSI ID of the target.
10089 * @lun_id: LUN ID of the scsi device.
10090 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
10092 * This function sends an abort command for every SCSI command
10093 * associated with the given virtual port pending on the ring
10094 * filtered by lpfc_sli_validate_fcp_iocb function.
10095 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
10096 * FCP iocbs associated with lun specified by tgt_id and lun_id
10098 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
10099 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
10100 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
10101 * FCP iocbs associated with virtual port.
10102 * This function returns number of iocbs it failed to abort.
10103 * This function is called with no locks held.
10106 lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
10107 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
10109 struct lpfc_hba *phba = vport->phba;
10110 struct lpfc_iocbq *iocbq;
10111 struct lpfc_iocbq *abtsiocb;
10112 IOCB_t *cmd = NULL;
10113 int errcnt = 0, ret_val = 0;
10116 for (i = 1; i <= phba->sli.last_iotag; i++) {
10117 iocbq = phba->sli.iocbq_lookup[i];
10119 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
10124 * If the iocbq is already being aborted, don't take a second
10125 * action, but do count it.
10127 if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
10130 /* issue ABTS for this IOCB based on iotag */
10131 abtsiocb = lpfc_sli_get_iocbq(phba);
10132 if (abtsiocb == NULL) {
10137 /* indicate the IO is being aborted by the driver. */
10138 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
10140 cmd = &iocbq->iocb;
10141 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
10142 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
10143 if (phba->sli_rev == LPFC_SLI_REV4)
10144 abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
10146 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
10147 abtsiocb->iocb.ulpLe = 1;
10148 abtsiocb->iocb.ulpClass = cmd->ulpClass;
10149 abtsiocb->vport = vport;
10151 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
10152 abtsiocb->fcp_wqidx = iocbq->fcp_wqidx;
10153 if (iocbq->iocb_flag & LPFC_IO_FCP)
10154 abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
10155 if (iocbq->iocb_flag & LPFC_IO_FOF)
10156 abtsiocb->iocb_flag |= LPFC_IO_FOF;
10158 if (lpfc_is_link_up(phba))
10159 abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
10161 abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
10163 /* Setup callback routine and issue the command. */
10164 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
10165 ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
10167 if (ret_val == IOCB_ERROR) {
10168 lpfc_sli_release_iocbq(phba, abtsiocb);
10178 * lpfc_sli_abort_taskmgmt - issue abort for all commands on a host/target/LUN
10179 * @vport: Pointer to virtual port.
10180 * @pring: Pointer to driver SLI ring object.
10181 * @tgt_id: SCSI ID of the target.
10182 * @lun_id: LUN ID of the scsi device.
10183 * @taskmgmt_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
10185 * This function sends an abort command for every SCSI command
10186 * associated with the given virtual port pending on the ring
10187 * filtered by lpfc_sli_validate_fcp_iocb function.
10188 * When taskmgmt_cmd == LPFC_CTX_LUN, the function sends abort only to the
10189 * FCP iocbs associated with lun specified by tgt_id and lun_id
10191 * When taskmgmt_cmd == LPFC_CTX_TGT, the function sends abort only to the
10192 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
10193 * When taskmgmt_cmd == LPFC_CTX_HOST, the function sends abort to all
10194 * FCP iocbs associated with virtual port.
10195 * This function returns number of iocbs it aborted .
10196 * This function is called with no locks held right after a taskmgmt
10200 lpfc_sli_abort_taskmgmt(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
10201 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd cmd)
10203 struct lpfc_hba *phba = vport->phba;
10204 struct lpfc_scsi_buf *lpfc_cmd;
10205 struct lpfc_iocbq *abtsiocbq;
10206 struct lpfc_nodelist *ndlp;
10207 struct lpfc_iocbq *iocbq;
10209 int sum, i, ret_val;
10210 unsigned long iflags;
10211 struct lpfc_sli_ring *pring_s4;
10212 uint32_t ring_number;
10214 spin_lock_irq(&phba->hbalock);
10216 /* all I/Os are in process of being flushed */
10217 if (phba->hba_flag & HBA_FCP_IOQ_FLUSH) {
10218 spin_unlock_irq(&phba->hbalock);
10223 for (i = 1; i <= phba->sli.last_iotag; i++) {
10224 iocbq = phba->sli.iocbq_lookup[i];
10226 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
10231 * If the iocbq is already being aborted, don't take a second
10232 * action, but do count it.
10234 if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
10237 /* issue ABTS for this IOCB based on iotag */
10238 abtsiocbq = __lpfc_sli_get_iocbq(phba);
10239 if (abtsiocbq == NULL)
10242 icmd = &iocbq->iocb;
10243 abtsiocbq->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
10244 abtsiocbq->iocb.un.acxri.abortContextTag = icmd->ulpContext;
10245 if (phba->sli_rev == LPFC_SLI_REV4)
10246 abtsiocbq->iocb.un.acxri.abortIoTag =
10247 iocbq->sli4_xritag;
10249 abtsiocbq->iocb.un.acxri.abortIoTag = icmd->ulpIoTag;
10250 abtsiocbq->iocb.ulpLe = 1;
10251 abtsiocbq->iocb.ulpClass = icmd->ulpClass;
10252 abtsiocbq->vport = vport;
10254 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
10255 abtsiocbq->fcp_wqidx = iocbq->fcp_wqidx;
10256 if (iocbq->iocb_flag & LPFC_IO_FCP)
10257 abtsiocbq->iocb_flag |= LPFC_USE_FCPWQIDX;
10258 if (iocbq->iocb_flag & LPFC_IO_FOF)
10259 abtsiocbq->iocb_flag |= LPFC_IO_FOF;
10261 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
10262 ndlp = lpfc_cmd->rdata->pnode;
10264 if (lpfc_is_link_up(phba) &&
10265 (ndlp && ndlp->nlp_state == NLP_STE_MAPPED_NODE))
10266 abtsiocbq->iocb.ulpCommand = CMD_ABORT_XRI_CN;
10268 abtsiocbq->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
10270 /* Setup callback routine and issue the command. */
10271 abtsiocbq->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
10274 * Indicate the IO is being aborted by the driver and set
10275 * the caller's flag into the aborted IO.
10277 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
10279 if (phba->sli_rev == LPFC_SLI_REV4) {
10280 ring_number = MAX_SLI3_CONFIGURED_RINGS +
10282 pring_s4 = &phba->sli.ring[ring_number];
10283 /* Note: both hbalock and ring_lock must be set here */
10284 spin_lock_irqsave(&pring_s4->ring_lock, iflags);
10285 ret_val = __lpfc_sli_issue_iocb(phba, pring_s4->ringno,
10287 spin_unlock_irqrestore(&pring_s4->ring_lock, iflags);
10289 ret_val = __lpfc_sli_issue_iocb(phba, pring->ringno,
10294 if (ret_val == IOCB_ERROR)
10295 __lpfc_sli_release_iocbq(phba, abtsiocbq);
10299 spin_unlock_irq(&phba->hbalock);
10304 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
10305 * @phba: Pointer to HBA context object.
10306 * @cmdiocbq: Pointer to command iocb.
10307 * @rspiocbq: Pointer to response iocb.
10309 * This function is the completion handler for iocbs issued using
10310 * lpfc_sli_issue_iocb_wait function. This function is called by the
10311 * ring event handler function without any lock held. This function
10312 * can be called from both worker thread context and interrupt
10313 * context. This function also can be called from other thread which
10314 * cleans up the SLI layer objects.
10315 * This function copy the contents of the response iocb to the
10316 * response iocb memory object provided by the caller of
10317 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
10318 * sleeps for the iocb completion.
10321 lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
10322 struct lpfc_iocbq *cmdiocbq,
10323 struct lpfc_iocbq *rspiocbq)
10325 wait_queue_head_t *pdone_q;
10326 unsigned long iflags;
10327 struct lpfc_scsi_buf *lpfc_cmd;
10329 spin_lock_irqsave(&phba->hbalock, iflags);
10330 if (cmdiocbq->iocb_flag & LPFC_IO_WAKE_TMO) {
10333 * A time out has occurred for the iocb. If a time out
10334 * completion handler has been supplied, call it. Otherwise,
10335 * just free the iocbq.
10338 spin_unlock_irqrestore(&phba->hbalock, iflags);
10339 cmdiocbq->iocb_cmpl = cmdiocbq->wait_iocb_cmpl;
10340 cmdiocbq->wait_iocb_cmpl = NULL;
10341 if (cmdiocbq->iocb_cmpl)
10342 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, NULL);
10344 lpfc_sli_release_iocbq(phba, cmdiocbq);
10348 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
10349 if (cmdiocbq->context2 && rspiocbq)
10350 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
10351 &rspiocbq->iocb, sizeof(IOCB_t));
10353 /* Set the exchange busy flag for task management commands */
10354 if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) &&
10355 !(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) {
10356 lpfc_cmd = container_of(cmdiocbq, struct lpfc_scsi_buf,
10358 lpfc_cmd->exch_busy = rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY;
10361 pdone_q = cmdiocbq->context_un.wait_queue;
10364 spin_unlock_irqrestore(&phba->hbalock, iflags);
10369 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
10370 * @phba: Pointer to HBA context object..
10371 * @piocbq: Pointer to command iocb.
10372 * @flag: Flag to test.
10374 * This routine grabs the hbalock and then test the iocb_flag to
10375 * see if the passed in flag is set.
10377 * 1 if flag is set.
10378 * 0 if flag is not set.
10381 lpfc_chk_iocb_flg(struct lpfc_hba *phba,
10382 struct lpfc_iocbq *piocbq, uint32_t flag)
10384 unsigned long iflags;
10387 spin_lock_irqsave(&phba->hbalock, iflags);
10388 ret = piocbq->iocb_flag & flag;
10389 spin_unlock_irqrestore(&phba->hbalock, iflags);
10395 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
10396 * @phba: Pointer to HBA context object..
10397 * @pring: Pointer to sli ring.
10398 * @piocb: Pointer to command iocb.
10399 * @prspiocbq: Pointer to response iocb.
10400 * @timeout: Timeout in number of seconds.
10402 * This function issues the iocb to firmware and waits for the
10403 * iocb to complete. The iocb_cmpl field of the shall be used
10404 * to handle iocbs which time out. If the field is NULL, the
10405 * function shall free the iocbq structure. If more clean up is
10406 * needed, the caller is expected to provide a completion function
10407 * that will provide the needed clean up. If the iocb command is
10408 * not completed within timeout seconds, the function will either
10409 * free the iocbq structure (if iocb_cmpl == NULL) or execute the
10410 * completion function set in the iocb_cmpl field and then return
10411 * a status of IOCB_TIMEDOUT. The caller should not free the iocb
10412 * resources if this function returns IOCB_TIMEDOUT.
10413 * The function waits for the iocb completion using an
10414 * non-interruptible wait.
10415 * This function will sleep while waiting for iocb completion.
10416 * So, this function should not be called from any context which
10417 * does not allow sleeping. Due to the same reason, this function
10418 * cannot be called with interrupt disabled.
10419 * This function assumes that the iocb completions occur while
10420 * this function sleep. So, this function cannot be called from
10421 * the thread which process iocb completion for this ring.
10422 * This function clears the iocb_flag of the iocb object before
10423 * issuing the iocb and the iocb completion handler sets this
10424 * flag and wakes this thread when the iocb completes.
10425 * The contents of the response iocb will be copied to prspiocbq
10426 * by the completion handler when the command completes.
10427 * This function returns IOCB_SUCCESS when success.
10428 * This function is called with no lock held.
10431 lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
10432 uint32_t ring_number,
10433 struct lpfc_iocbq *piocb,
10434 struct lpfc_iocbq *prspiocbq,
10437 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
10438 long timeleft, timeout_req = 0;
10439 int retval = IOCB_SUCCESS;
10441 struct lpfc_iocbq *iocb;
10443 int txcmplq_cnt = 0;
10444 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
10445 unsigned long iflags;
10446 bool iocb_completed = true;
10449 * If the caller has provided a response iocbq buffer, then context2
10450 * is NULL or its an error.
10453 if (piocb->context2)
10455 piocb->context2 = prspiocbq;
10458 piocb->wait_iocb_cmpl = piocb->iocb_cmpl;
10459 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
10460 piocb->context_un.wait_queue = &done_q;
10461 piocb->iocb_flag &= ~(LPFC_IO_WAKE | LPFC_IO_WAKE_TMO);
10463 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
10464 if (lpfc_readl(phba->HCregaddr, &creg_val))
10466 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
10467 writel(creg_val, phba->HCregaddr);
10468 readl(phba->HCregaddr); /* flush */
10471 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb,
10472 SLI_IOCB_RET_IOCB);
10473 if (retval == IOCB_SUCCESS) {
10474 timeout_req = msecs_to_jiffies(timeout * 1000);
10475 timeleft = wait_event_timeout(done_q,
10476 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
10478 spin_lock_irqsave(&phba->hbalock, iflags);
10479 if (!(piocb->iocb_flag & LPFC_IO_WAKE)) {
10482 * IOCB timed out. Inform the wake iocb wait
10483 * completion function and set local status
10486 iocb_completed = false;
10487 piocb->iocb_flag |= LPFC_IO_WAKE_TMO;
10489 spin_unlock_irqrestore(&phba->hbalock, iflags);
10490 if (iocb_completed) {
10491 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10492 "0331 IOCB wake signaled\n");
10493 /* Note: we are not indicating if the IOCB has a success
10494 * status or not - that's for the caller to check.
10495 * IOCB_SUCCESS means just that the command was sent and
10496 * completed. Not that it completed successfully.
10498 } else if (timeleft == 0) {
10499 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10500 "0338 IOCB wait timeout error - no "
10501 "wake response Data x%x\n", timeout);
10502 retval = IOCB_TIMEDOUT;
10504 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10505 "0330 IOCB wake NOT set, "
10507 timeout, (timeleft / jiffies));
10508 retval = IOCB_TIMEDOUT;
10510 } else if (retval == IOCB_BUSY) {
10511 if (phba->cfg_log_verbose & LOG_SLI) {
10512 list_for_each_entry(iocb, &pring->txq, list) {
10515 list_for_each_entry(iocb, &pring->txcmplq, list) {
10518 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10519 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
10520 phba->iocb_cnt, txq_cnt, txcmplq_cnt);
10524 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10525 "0332 IOCB wait issue failed, Data x%x\n",
10527 retval = IOCB_ERROR;
10530 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
10531 if (lpfc_readl(phba->HCregaddr, &creg_val))
10533 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
10534 writel(creg_val, phba->HCregaddr);
10535 readl(phba->HCregaddr); /* flush */
10539 piocb->context2 = NULL;
10541 piocb->context_un.wait_queue = NULL;
10542 piocb->iocb_cmpl = NULL;
10547 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
10548 * @phba: Pointer to HBA context object.
10549 * @pmboxq: Pointer to driver mailbox object.
10550 * @timeout: Timeout in number of seconds.
10552 * This function issues the mailbox to firmware and waits for the
10553 * mailbox command to complete. If the mailbox command is not
10554 * completed within timeout seconds, it returns MBX_TIMEOUT.
10555 * The function waits for the mailbox completion using an
10556 * interruptible wait. If the thread is woken up due to a
10557 * signal, MBX_TIMEOUT error is returned to the caller. Caller
10558 * should not free the mailbox resources, if this function returns
10560 * This function will sleep while waiting for mailbox completion.
10561 * So, this function should not be called from any context which
10562 * does not allow sleeping. Due to the same reason, this function
10563 * cannot be called with interrupt disabled.
10564 * This function assumes that the mailbox completion occurs while
10565 * this function sleep. So, this function cannot be called from
10566 * the worker thread which processes mailbox completion.
10567 * This function is called in the context of HBA management
10569 * This function returns MBX_SUCCESS when successful.
10570 * This function is called with no lock held.
10573 lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
10576 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
10577 MAILBOX_t *mb = NULL;
10579 unsigned long flag;
10581 /* The caller might set context1 for extended buffer */
10582 if (pmboxq->context1)
10583 mb = (MAILBOX_t *)pmboxq->context1;
10585 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
10586 /* setup wake call as IOCB callback */
10587 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
10588 /* setup context field to pass wait_queue pointer to wake function */
10589 pmboxq->context1 = &done_q;
10591 /* now issue the command */
10592 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
10593 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
10594 wait_event_interruptible_timeout(done_q,
10595 pmboxq->mbox_flag & LPFC_MBX_WAKE,
10596 msecs_to_jiffies(timeout * 1000));
10598 spin_lock_irqsave(&phba->hbalock, flag);
10599 /* restore the possible extended buffer for free resource */
10600 pmboxq->context1 = (uint8_t *)mb;
10602 * if LPFC_MBX_WAKE flag is set the mailbox is completed
10603 * else do not free the resources.
10605 if (pmboxq->mbox_flag & LPFC_MBX_WAKE) {
10606 retval = MBX_SUCCESS;
10608 retval = MBX_TIMEOUT;
10609 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10611 spin_unlock_irqrestore(&phba->hbalock, flag);
10613 /* restore the possible extended buffer for free resource */
10614 pmboxq->context1 = (uint8_t *)mb;
10621 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
10622 * @phba: Pointer to HBA context.
10624 * This function is called to shutdown the driver's mailbox sub-system.
10625 * It first marks the mailbox sub-system is in a block state to prevent
10626 * the asynchronous mailbox command from issued off the pending mailbox
10627 * command queue. If the mailbox command sub-system shutdown is due to
10628 * HBA error conditions such as EEH or ERATT, this routine shall invoke
10629 * the mailbox sub-system flush routine to forcefully bring down the
10630 * mailbox sub-system. Otherwise, if it is due to normal condition (such
10631 * as with offline or HBA function reset), this routine will wait for the
10632 * outstanding mailbox command to complete before invoking the mailbox
10633 * sub-system flush routine to gracefully bring down mailbox sub-system.
10636 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba, int mbx_action)
10638 struct lpfc_sli *psli = &phba->sli;
10639 unsigned long timeout;
10641 if (mbx_action == LPFC_MBX_NO_WAIT) {
10642 /* delay 100ms for port state */
10644 lpfc_sli_mbox_sys_flush(phba);
10647 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
10649 spin_lock_irq(&phba->hbalock);
10650 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
10652 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
10653 /* Determine how long we might wait for the active mailbox
10654 * command to be gracefully completed by firmware.
10656 if (phba->sli.mbox_active)
10657 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
10658 phba->sli.mbox_active) *
10660 spin_unlock_irq(&phba->hbalock);
10662 while (phba->sli.mbox_active) {
10663 /* Check active mailbox complete status every 2ms */
10665 if (time_after(jiffies, timeout))
10666 /* Timeout, let the mailbox flush routine to
10667 * forcefully release active mailbox command
10672 spin_unlock_irq(&phba->hbalock);
10674 lpfc_sli_mbox_sys_flush(phba);
10678 * lpfc_sli_eratt_read - read sli-3 error attention events
10679 * @phba: Pointer to HBA context.
10681 * This function is called to read the SLI3 device error attention registers
10682 * for possible error attention events. The caller must hold the hostlock
10683 * with spin_lock_irq().
10685 * This function returns 1 when there is Error Attention in the Host Attention
10686 * Register and returns 0 otherwise.
10689 lpfc_sli_eratt_read(struct lpfc_hba *phba)
10693 /* Read chip Host Attention (HA) register */
10694 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10697 if (ha_copy & HA_ERATT) {
10698 /* Read host status register to retrieve error event */
10699 if (lpfc_sli_read_hs(phba))
10702 /* Check if there is a deferred error condition is active */
10703 if ((HS_FFER1 & phba->work_hs) &&
10704 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
10705 HS_FFER6 | HS_FFER7 | HS_FFER8) & phba->work_hs)) {
10706 phba->hba_flag |= DEFER_ERATT;
10707 /* Clear all interrupt enable conditions */
10708 writel(0, phba->HCregaddr);
10709 readl(phba->HCregaddr);
10712 /* Set the driver HA work bitmap */
10713 phba->work_ha |= HA_ERATT;
10714 /* Indicate polling handles this ERATT */
10715 phba->hba_flag |= HBA_ERATT_HANDLED;
10721 /* Set the driver HS work bitmap */
10722 phba->work_hs |= UNPLUG_ERR;
10723 /* Set the driver HA work bitmap */
10724 phba->work_ha |= HA_ERATT;
10725 /* Indicate polling handles this ERATT */
10726 phba->hba_flag |= HBA_ERATT_HANDLED;
10731 * lpfc_sli4_eratt_read - read sli-4 error attention events
10732 * @phba: Pointer to HBA context.
10734 * This function is called to read the SLI4 device error attention registers
10735 * for possible error attention events. The caller must hold the hostlock
10736 * with spin_lock_irq().
10738 * This function returns 1 when there is Error Attention in the Host Attention
10739 * Register and returns 0 otherwise.
10742 lpfc_sli4_eratt_read(struct lpfc_hba *phba)
10744 uint32_t uerr_sta_hi, uerr_sta_lo;
10745 uint32_t if_type, portsmphr;
10746 struct lpfc_register portstat_reg;
10749 * For now, use the SLI4 device internal unrecoverable error
10750 * registers for error attention. This can be changed later.
10752 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10754 case LPFC_SLI_INTF_IF_TYPE_0:
10755 if (lpfc_readl(phba->sli4_hba.u.if_type0.UERRLOregaddr,
10757 lpfc_readl(phba->sli4_hba.u.if_type0.UERRHIregaddr,
10759 phba->work_hs |= UNPLUG_ERR;
10760 phba->work_ha |= HA_ERATT;
10761 phba->hba_flag |= HBA_ERATT_HANDLED;
10764 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
10765 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
10766 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10767 "1423 HBA Unrecoverable error: "
10768 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
10769 "ue_mask_lo_reg=0x%x, "
10770 "ue_mask_hi_reg=0x%x\n",
10771 uerr_sta_lo, uerr_sta_hi,
10772 phba->sli4_hba.ue_mask_lo,
10773 phba->sli4_hba.ue_mask_hi);
10774 phba->work_status[0] = uerr_sta_lo;
10775 phba->work_status[1] = uerr_sta_hi;
10776 phba->work_ha |= HA_ERATT;
10777 phba->hba_flag |= HBA_ERATT_HANDLED;
10781 case LPFC_SLI_INTF_IF_TYPE_2:
10782 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
10783 &portstat_reg.word0) ||
10784 lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
10786 phba->work_hs |= UNPLUG_ERR;
10787 phba->work_ha |= HA_ERATT;
10788 phba->hba_flag |= HBA_ERATT_HANDLED;
10791 if (bf_get(lpfc_sliport_status_err, &portstat_reg)) {
10792 phba->work_status[0] =
10793 readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
10794 phba->work_status[1] =
10795 readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
10796 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10797 "2885 Port Status Event: "
10798 "port status reg 0x%x, "
10799 "port smphr reg 0x%x, "
10800 "error 1=0x%x, error 2=0x%x\n",
10801 portstat_reg.word0,
10803 phba->work_status[0],
10804 phba->work_status[1]);
10805 phba->work_ha |= HA_ERATT;
10806 phba->hba_flag |= HBA_ERATT_HANDLED;
10810 case LPFC_SLI_INTF_IF_TYPE_1:
10812 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10813 "2886 HBA Error Attention on unsupported "
10814 "if type %d.", if_type);
10822 * lpfc_sli_check_eratt - check error attention events
10823 * @phba: Pointer to HBA context.
10825 * This function is called from timer soft interrupt context to check HBA's
10826 * error attention register bit for error attention events.
10828 * This function returns 1 when there is Error Attention in the Host Attention
10829 * Register and returns 0 otherwise.
10832 lpfc_sli_check_eratt(struct lpfc_hba *phba)
10836 /* If somebody is waiting to handle an eratt, don't process it
10837 * here. The brdkill function will do this.
10839 if (phba->link_flag & LS_IGNORE_ERATT)
10842 /* Check if interrupt handler handles this ERATT */
10843 spin_lock_irq(&phba->hbalock);
10844 if (phba->hba_flag & HBA_ERATT_HANDLED) {
10845 /* Interrupt handler has handled ERATT */
10846 spin_unlock_irq(&phba->hbalock);
10851 * If there is deferred error attention, do not check for error
10854 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10855 spin_unlock_irq(&phba->hbalock);
10859 /* If PCI channel is offline, don't process it */
10860 if (unlikely(pci_channel_offline(phba->pcidev))) {
10861 spin_unlock_irq(&phba->hbalock);
10865 switch (phba->sli_rev) {
10866 case LPFC_SLI_REV2:
10867 case LPFC_SLI_REV3:
10868 /* Read chip Host Attention (HA) register */
10869 ha_copy = lpfc_sli_eratt_read(phba);
10871 case LPFC_SLI_REV4:
10872 /* Read device Uncoverable Error (UERR) registers */
10873 ha_copy = lpfc_sli4_eratt_read(phba);
10876 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10877 "0299 Invalid SLI revision (%d)\n",
10882 spin_unlock_irq(&phba->hbalock);
10888 * lpfc_intr_state_check - Check device state for interrupt handling
10889 * @phba: Pointer to HBA context.
10891 * This inline routine checks whether a device or its PCI slot is in a state
10892 * that the interrupt should be handled.
10894 * This function returns 0 if the device or the PCI slot is in a state that
10895 * interrupt should be handled, otherwise -EIO.
10898 lpfc_intr_state_check(struct lpfc_hba *phba)
10900 /* If the pci channel is offline, ignore all the interrupts */
10901 if (unlikely(pci_channel_offline(phba->pcidev)))
10904 /* Update device level interrupt statistics */
10905 phba->sli.slistat.sli_intr++;
10907 /* Ignore all interrupts during initialization. */
10908 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
10915 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
10916 * @irq: Interrupt number.
10917 * @dev_id: The device context pointer.
10919 * This function is directly called from the PCI layer as an interrupt
10920 * service routine when device with SLI-3 interface spec is enabled with
10921 * MSI-X multi-message interrupt mode and there are slow-path events in
10922 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
10923 * interrupt mode, this function is called as part of the device-level
10924 * interrupt handler. When the PCI slot is in error recovery or the HBA
10925 * is undergoing initialization, the interrupt handler will not process
10926 * the interrupt. The link attention and ELS ring attention events are
10927 * handled by the worker thread. The interrupt handler signals the worker
10928 * thread and returns for these events. This function is called without
10929 * any lock held. It gets the hbalock to access and update SLI data
10932 * This function returns IRQ_HANDLED when interrupt is handled else it
10933 * returns IRQ_NONE.
10936 lpfc_sli_sp_intr_handler(int irq, void *dev_id)
10938 struct lpfc_hba *phba;
10939 uint32_t ha_copy, hc_copy;
10940 uint32_t work_ha_copy;
10941 unsigned long status;
10942 unsigned long iflag;
10945 MAILBOX_t *mbox, *pmbox;
10946 struct lpfc_vport *vport;
10947 struct lpfc_nodelist *ndlp;
10948 struct lpfc_dmabuf *mp;
10953 * Get the driver's phba structure from the dev_id and
10954 * assume the HBA is not interrupting.
10956 phba = (struct lpfc_hba *)dev_id;
10958 if (unlikely(!phba))
10962 * Stuff needs to be attented to when this function is invoked as an
10963 * individual interrupt handler in MSI-X multi-message interrupt mode
10965 if (phba->intr_type == MSIX) {
10966 /* Check device state for handling interrupt */
10967 if (lpfc_intr_state_check(phba))
10969 /* Need to read HA REG for slow-path events */
10970 spin_lock_irqsave(&phba->hbalock, iflag);
10971 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10973 /* If somebody is waiting to handle an eratt don't process it
10974 * here. The brdkill function will do this.
10976 if (phba->link_flag & LS_IGNORE_ERATT)
10977 ha_copy &= ~HA_ERATT;
10978 /* Check the need for handling ERATT in interrupt handler */
10979 if (ha_copy & HA_ERATT) {
10980 if (phba->hba_flag & HBA_ERATT_HANDLED)
10981 /* ERATT polling has handled ERATT */
10982 ha_copy &= ~HA_ERATT;
10984 /* Indicate interrupt handler handles ERATT */
10985 phba->hba_flag |= HBA_ERATT_HANDLED;
10989 * If there is deferred error attention, do not check for any
10992 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10993 spin_unlock_irqrestore(&phba->hbalock, iflag);
10997 /* Clear up only attention source related to slow-path */
10998 if (lpfc_readl(phba->HCregaddr, &hc_copy))
11001 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
11002 HC_LAINT_ENA | HC_ERINT_ENA),
11004 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
11006 writel(hc_copy, phba->HCregaddr);
11007 readl(phba->HAregaddr); /* flush */
11008 spin_unlock_irqrestore(&phba->hbalock, iflag);
11010 ha_copy = phba->ha_copy;
11012 work_ha_copy = ha_copy & phba->work_ha_mask;
11014 if (work_ha_copy) {
11015 if (work_ha_copy & HA_LATT) {
11016 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
11018 * Turn off Link Attention interrupts
11019 * until CLEAR_LA done
11021 spin_lock_irqsave(&phba->hbalock, iflag);
11022 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
11023 if (lpfc_readl(phba->HCregaddr, &control))
11025 control &= ~HC_LAINT_ENA;
11026 writel(control, phba->HCregaddr);
11027 readl(phba->HCregaddr); /* flush */
11028 spin_unlock_irqrestore(&phba->hbalock, iflag);
11031 work_ha_copy &= ~HA_LATT;
11034 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
11036 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
11037 * the only slow ring.
11039 status = (work_ha_copy &
11040 (HA_RXMASK << (4*LPFC_ELS_RING)));
11041 status >>= (4*LPFC_ELS_RING);
11042 if (status & HA_RXMASK) {
11043 spin_lock_irqsave(&phba->hbalock, iflag);
11044 if (lpfc_readl(phba->HCregaddr, &control))
11047 lpfc_debugfs_slow_ring_trc(phba,
11048 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
11050 (uint32_t)phba->sli.slistat.sli_intr);
11052 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
11053 lpfc_debugfs_slow_ring_trc(phba,
11054 "ISR Disable ring:"
11055 "pwork:x%x hawork:x%x wait:x%x",
11056 phba->work_ha, work_ha_copy,
11057 (uint32_t)((unsigned long)
11058 &phba->work_waitq));
11061 ~(HC_R0INT_ENA << LPFC_ELS_RING);
11062 writel(control, phba->HCregaddr);
11063 readl(phba->HCregaddr); /* flush */
11066 lpfc_debugfs_slow_ring_trc(phba,
11067 "ISR slow ring: pwork:"
11068 "x%x hawork:x%x wait:x%x",
11069 phba->work_ha, work_ha_copy,
11070 (uint32_t)((unsigned long)
11071 &phba->work_waitq));
11073 spin_unlock_irqrestore(&phba->hbalock, iflag);
11076 spin_lock_irqsave(&phba->hbalock, iflag);
11077 if (work_ha_copy & HA_ERATT) {
11078 if (lpfc_sli_read_hs(phba))
11081 * Check if there is a deferred error condition
11084 if ((HS_FFER1 & phba->work_hs) &&
11085 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
11086 HS_FFER6 | HS_FFER7 | HS_FFER8) &
11088 phba->hba_flag |= DEFER_ERATT;
11089 /* Clear all interrupt enable conditions */
11090 writel(0, phba->HCregaddr);
11091 readl(phba->HCregaddr);
11095 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
11096 pmb = phba->sli.mbox_active;
11097 pmbox = &pmb->u.mb;
11099 vport = pmb->vport;
11101 /* First check out the status word */
11102 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
11103 if (pmbox->mbxOwner != OWN_HOST) {
11104 spin_unlock_irqrestore(&phba->hbalock, iflag);
11106 * Stray Mailbox Interrupt, mbxCommand <cmd>
11107 * mbxStatus <status>
11109 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
11111 "(%d):0304 Stray Mailbox "
11112 "Interrupt mbxCommand x%x "
11114 (vport ? vport->vpi : 0),
11117 /* clear mailbox attention bit */
11118 work_ha_copy &= ~HA_MBATT;
11120 phba->sli.mbox_active = NULL;
11121 spin_unlock_irqrestore(&phba->hbalock, iflag);
11122 phba->last_completion_time = jiffies;
11123 del_timer(&phba->sli.mbox_tmo);
11124 if (pmb->mbox_cmpl) {
11125 lpfc_sli_pcimem_bcopy(mbox, pmbox,
11127 if (pmb->out_ext_byte_len &&
11129 lpfc_sli_pcimem_bcopy(
11132 pmb->out_ext_byte_len);
11134 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
11135 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
11137 lpfc_debugfs_disc_trc(vport,
11138 LPFC_DISC_TRC_MBOX_VPORT,
11139 "MBOX dflt rpi: : "
11140 "status:x%x rpi:x%x",
11141 (uint32_t)pmbox->mbxStatus,
11142 pmbox->un.varWords[0], 0);
11144 if (!pmbox->mbxStatus) {
11145 mp = (struct lpfc_dmabuf *)
11147 ndlp = (struct lpfc_nodelist *)
11150 /* Reg_LOGIN of dflt RPI was
11151 * successful. new lets get
11152 * rid of the RPI using the
11153 * same mbox buffer.
11155 lpfc_unreg_login(phba,
11157 pmbox->un.varWords[0],
11160 lpfc_mbx_cmpl_dflt_rpi;
11161 pmb->context1 = mp;
11162 pmb->context2 = ndlp;
11163 pmb->vport = vport;
11164 rc = lpfc_sli_issue_mbox(phba,
11167 if (rc != MBX_BUSY)
11168 lpfc_printf_log(phba,
11170 LOG_MBOX | LOG_SLI,
11171 "0350 rc should have"
11172 "been MBX_BUSY\n");
11173 if (rc != MBX_NOT_FINISHED)
11174 goto send_current_mbox;
11178 &phba->pport->work_port_lock,
11180 phba->pport->work_port_events &=
11182 spin_unlock_irqrestore(
11183 &phba->pport->work_port_lock,
11185 lpfc_mbox_cmpl_put(phba, pmb);
11188 spin_unlock_irqrestore(&phba->hbalock, iflag);
11190 if ((work_ha_copy & HA_MBATT) &&
11191 (phba->sli.mbox_active == NULL)) {
11193 /* Process next mailbox command if there is one */
11195 rc = lpfc_sli_issue_mbox(phba, NULL,
11197 } while (rc == MBX_NOT_FINISHED);
11198 if (rc != MBX_SUCCESS)
11199 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
11200 LOG_SLI, "0349 rc should be "
11204 spin_lock_irqsave(&phba->hbalock, iflag);
11205 phba->work_ha |= work_ha_copy;
11206 spin_unlock_irqrestore(&phba->hbalock, iflag);
11207 lpfc_worker_wake_up(phba);
11209 return IRQ_HANDLED;
11211 spin_unlock_irqrestore(&phba->hbalock, iflag);
11212 return IRQ_HANDLED;
11214 } /* lpfc_sli_sp_intr_handler */
11217 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
11218 * @irq: Interrupt number.
11219 * @dev_id: The device context pointer.
11221 * This function is directly called from the PCI layer as an interrupt
11222 * service routine when device with SLI-3 interface spec is enabled with
11223 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
11224 * ring event in the HBA. However, when the device is enabled with either
11225 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
11226 * device-level interrupt handler. When the PCI slot is in error recovery
11227 * or the HBA is undergoing initialization, the interrupt handler will not
11228 * process the interrupt. The SCSI FCP fast-path ring event are handled in
11229 * the intrrupt context. This function is called without any lock held.
11230 * It gets the hbalock to access and update SLI data structures.
11232 * This function returns IRQ_HANDLED when interrupt is handled else it
11233 * returns IRQ_NONE.
11236 lpfc_sli_fp_intr_handler(int irq, void *dev_id)
11238 struct lpfc_hba *phba;
11240 unsigned long status;
11241 unsigned long iflag;
11243 /* Get the driver's phba structure from the dev_id and
11244 * assume the HBA is not interrupting.
11246 phba = (struct lpfc_hba *) dev_id;
11248 if (unlikely(!phba))
11252 * Stuff needs to be attented to when this function is invoked as an
11253 * individual interrupt handler in MSI-X multi-message interrupt mode
11255 if (phba->intr_type == MSIX) {
11256 /* Check device state for handling interrupt */
11257 if (lpfc_intr_state_check(phba))
11259 /* Need to read HA REG for FCP ring and other ring events */
11260 if (lpfc_readl(phba->HAregaddr, &ha_copy))
11261 return IRQ_HANDLED;
11262 /* Clear up only attention source related to fast-path */
11263 spin_lock_irqsave(&phba->hbalock, iflag);
11265 * If there is deferred error attention, do not check for
11268 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
11269 spin_unlock_irqrestore(&phba->hbalock, iflag);
11272 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
11274 readl(phba->HAregaddr); /* flush */
11275 spin_unlock_irqrestore(&phba->hbalock, iflag);
11277 ha_copy = phba->ha_copy;
11280 * Process all events on FCP ring. Take the optimized path for FCP IO.
11282 ha_copy &= ~(phba->work_ha_mask);
11284 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
11285 status >>= (4*LPFC_FCP_RING);
11286 if (status & HA_RXMASK)
11287 lpfc_sli_handle_fast_ring_event(phba,
11288 &phba->sli.ring[LPFC_FCP_RING],
11291 if (phba->cfg_multi_ring_support == 2) {
11293 * Process all events on extra ring. Take the optimized path
11294 * for extra ring IO.
11296 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
11297 status >>= (4*LPFC_EXTRA_RING);
11298 if (status & HA_RXMASK) {
11299 lpfc_sli_handle_fast_ring_event(phba,
11300 &phba->sli.ring[LPFC_EXTRA_RING],
11304 return IRQ_HANDLED;
11305 } /* lpfc_sli_fp_intr_handler */
11308 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
11309 * @irq: Interrupt number.
11310 * @dev_id: The device context pointer.
11312 * This function is the HBA device-level interrupt handler to device with
11313 * SLI-3 interface spec, called from the PCI layer when either MSI or
11314 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
11315 * requires driver attention. This function invokes the slow-path interrupt
11316 * attention handling function and fast-path interrupt attention handling
11317 * function in turn to process the relevant HBA attention events. This
11318 * function is called without any lock held. It gets the hbalock to access
11319 * and update SLI data structures.
11321 * This function returns IRQ_HANDLED when interrupt is handled, else it
11322 * returns IRQ_NONE.
11325 lpfc_sli_intr_handler(int irq, void *dev_id)
11327 struct lpfc_hba *phba;
11328 irqreturn_t sp_irq_rc, fp_irq_rc;
11329 unsigned long status1, status2;
11333 * Get the driver's phba structure from the dev_id and
11334 * assume the HBA is not interrupting.
11336 phba = (struct lpfc_hba *) dev_id;
11338 if (unlikely(!phba))
11341 /* Check device state for handling interrupt */
11342 if (lpfc_intr_state_check(phba))
11345 spin_lock(&phba->hbalock);
11346 if (lpfc_readl(phba->HAregaddr, &phba->ha_copy)) {
11347 spin_unlock(&phba->hbalock);
11348 return IRQ_HANDLED;
11351 if (unlikely(!phba->ha_copy)) {
11352 spin_unlock(&phba->hbalock);
11354 } else if (phba->ha_copy & HA_ERATT) {
11355 if (phba->hba_flag & HBA_ERATT_HANDLED)
11356 /* ERATT polling has handled ERATT */
11357 phba->ha_copy &= ~HA_ERATT;
11359 /* Indicate interrupt handler handles ERATT */
11360 phba->hba_flag |= HBA_ERATT_HANDLED;
11364 * If there is deferred error attention, do not check for any interrupt.
11366 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
11367 spin_unlock(&phba->hbalock);
11371 /* Clear attention sources except link and error attentions */
11372 if (lpfc_readl(phba->HCregaddr, &hc_copy)) {
11373 spin_unlock(&phba->hbalock);
11374 return IRQ_HANDLED;
11376 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
11377 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
11379 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
11380 writel(hc_copy, phba->HCregaddr);
11381 readl(phba->HAregaddr); /* flush */
11382 spin_unlock(&phba->hbalock);
11385 * Invokes slow-path host attention interrupt handling as appropriate.
11388 /* status of events with mailbox and link attention */
11389 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
11391 /* status of events with ELS ring */
11392 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
11393 status2 >>= (4*LPFC_ELS_RING);
11395 if (status1 || (status2 & HA_RXMASK))
11396 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
11398 sp_irq_rc = IRQ_NONE;
11401 * Invoke fast-path host attention interrupt handling as appropriate.
11404 /* status of events with FCP ring */
11405 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
11406 status1 >>= (4*LPFC_FCP_RING);
11408 /* status of events with extra ring */
11409 if (phba->cfg_multi_ring_support == 2) {
11410 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
11411 status2 >>= (4*LPFC_EXTRA_RING);
11415 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
11416 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
11418 fp_irq_rc = IRQ_NONE;
11420 /* Return device-level interrupt handling status */
11421 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
11422 } /* lpfc_sli_intr_handler */
11425 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
11426 * @phba: pointer to lpfc hba data structure.
11428 * This routine is invoked by the worker thread to process all the pending
11429 * SLI4 FCP abort XRI events.
11431 void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba)
11433 struct lpfc_cq_event *cq_event;
11435 /* First, declare the fcp xri abort event has been handled */
11436 spin_lock_irq(&phba->hbalock);
11437 phba->hba_flag &= ~FCP_XRI_ABORT_EVENT;
11438 spin_unlock_irq(&phba->hbalock);
11439 /* Now, handle all the fcp xri abort events */
11440 while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) {
11441 /* Get the first event from the head of the event queue */
11442 spin_lock_irq(&phba->hbalock);
11443 list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
11444 cq_event, struct lpfc_cq_event, list);
11445 spin_unlock_irq(&phba->hbalock);
11446 /* Notify aborted XRI for FCP work queue */
11447 lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
11448 /* Free the event processed back to the free pool */
11449 lpfc_sli4_cq_event_release(phba, cq_event);
11454 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
11455 * @phba: pointer to lpfc hba data structure.
11457 * This routine is invoked by the worker thread to process all the pending
11458 * SLI4 els abort xri events.
11460 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
11462 struct lpfc_cq_event *cq_event;
11464 /* First, declare the els xri abort event has been handled */
11465 spin_lock_irq(&phba->hbalock);
11466 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
11467 spin_unlock_irq(&phba->hbalock);
11468 /* Now, handle all the els xri abort events */
11469 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
11470 /* Get the first event from the head of the event queue */
11471 spin_lock_irq(&phba->hbalock);
11472 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
11473 cq_event, struct lpfc_cq_event, list);
11474 spin_unlock_irq(&phba->hbalock);
11475 /* Notify aborted XRI for ELS work queue */
11476 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
11477 /* Free the event processed back to the free pool */
11478 lpfc_sli4_cq_event_release(phba, cq_event);
11483 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
11484 * @phba: pointer to lpfc hba data structure
11485 * @pIocbIn: pointer to the rspiocbq
11486 * @pIocbOut: pointer to the cmdiocbq
11487 * @wcqe: pointer to the complete wcqe
11489 * This routine transfers the fields of a command iocbq to a response iocbq
11490 * by copying all the IOCB fields from command iocbq and transferring the
11491 * completion status information from the complete wcqe.
11494 lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
11495 struct lpfc_iocbq *pIocbIn,
11496 struct lpfc_iocbq *pIocbOut,
11497 struct lpfc_wcqe_complete *wcqe)
11500 unsigned long iflags;
11501 uint32_t status, max_response;
11502 struct lpfc_dmabuf *dmabuf;
11503 struct ulp_bde64 *bpl, bde;
11504 size_t offset = offsetof(struct lpfc_iocbq, iocb);
11506 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
11507 sizeof(struct lpfc_iocbq) - offset);
11508 /* Map WCQE parameters into irspiocb parameters */
11509 status = bf_get(lpfc_wcqe_c_status, wcqe);
11510 pIocbIn->iocb.ulpStatus = (status & LPFC_IOCB_STATUS_MASK);
11511 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
11512 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
11513 pIocbIn->iocb.un.fcpi.fcpi_parm =
11514 pIocbOut->iocb.un.fcpi.fcpi_parm -
11515 wcqe->total_data_placed;
11517 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
11519 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
11520 switch (pIocbOut->iocb.ulpCommand) {
11521 case CMD_ELS_REQUEST64_CR:
11522 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
11523 bpl = (struct ulp_bde64 *)dmabuf->virt;
11524 bde.tus.w = le32_to_cpu(bpl[1].tus.w);
11525 max_response = bde.tus.f.bdeSize;
11527 case CMD_GEN_REQUEST64_CR:
11529 if (!pIocbOut->context3)
11531 numBdes = pIocbOut->iocb.un.genreq64.bdl.bdeSize/
11532 sizeof(struct ulp_bde64);
11533 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
11534 bpl = (struct ulp_bde64 *)dmabuf->virt;
11535 for (i = 0; i < numBdes; i++) {
11536 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
11537 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
11538 max_response += bde.tus.f.bdeSize;
11542 max_response = wcqe->total_data_placed;
11545 if (max_response < wcqe->total_data_placed)
11546 pIocbIn->iocb.un.genreq64.bdl.bdeSize = max_response;
11548 pIocbIn->iocb.un.genreq64.bdl.bdeSize =
11549 wcqe->total_data_placed;
11552 /* Convert BG errors for completion status */
11553 if (status == CQE_STATUS_DI_ERROR) {
11554 pIocbIn->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
11556 if (bf_get(lpfc_wcqe_c_bg_edir, wcqe))
11557 pIocbIn->iocb.un.ulpWord[4] = IOERR_RX_DMA_FAILED;
11559 pIocbIn->iocb.un.ulpWord[4] = IOERR_TX_DMA_FAILED;
11561 pIocbIn->iocb.unsli3.sli3_bg.bgstat = 0;
11562 if (bf_get(lpfc_wcqe_c_bg_ge, wcqe)) /* Guard Check failed */
11563 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11564 BGS_GUARD_ERR_MASK;
11565 if (bf_get(lpfc_wcqe_c_bg_ae, wcqe)) /* App Tag Check failed */
11566 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11567 BGS_APPTAG_ERR_MASK;
11568 if (bf_get(lpfc_wcqe_c_bg_re, wcqe)) /* Ref Tag Check failed */
11569 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11570 BGS_REFTAG_ERR_MASK;
11572 /* Check to see if there was any good data before the error */
11573 if (bf_get(lpfc_wcqe_c_bg_tdpv, wcqe)) {
11574 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11575 BGS_HI_WATER_MARK_PRESENT_MASK;
11576 pIocbIn->iocb.unsli3.sli3_bg.bghm =
11577 wcqe->total_data_placed;
11581 * Set ALL the error bits to indicate we don't know what
11582 * type of error it is.
11584 if (!pIocbIn->iocb.unsli3.sli3_bg.bgstat)
11585 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11586 (BGS_REFTAG_ERR_MASK | BGS_APPTAG_ERR_MASK |
11587 BGS_GUARD_ERR_MASK);
11590 /* Pick up HBA exchange busy condition */
11591 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
11592 spin_lock_irqsave(&phba->hbalock, iflags);
11593 pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY;
11594 spin_unlock_irqrestore(&phba->hbalock, iflags);
11599 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
11600 * @phba: Pointer to HBA context object.
11601 * @wcqe: Pointer to work-queue completion queue entry.
11603 * This routine handles an ELS work-queue completion event and construct
11604 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
11605 * discovery engine to handle.
11607 * Return: Pointer to the receive IOCBQ, NULL otherwise.
11609 static struct lpfc_iocbq *
11610 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
11611 struct lpfc_iocbq *irspiocbq)
11613 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
11614 struct lpfc_iocbq *cmdiocbq;
11615 struct lpfc_wcqe_complete *wcqe;
11616 unsigned long iflags;
11618 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
11619 spin_lock_irqsave(&pring->ring_lock, iflags);
11620 pring->stats.iocb_event++;
11621 /* Look up the ELS command IOCB and create pseudo response IOCB */
11622 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
11623 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11624 spin_unlock_irqrestore(&pring->ring_lock, iflags);
11626 if (unlikely(!cmdiocbq)) {
11627 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11628 "0386 ELS complete with no corresponding "
11629 "cmdiocb: iotag (%d)\n",
11630 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11631 lpfc_sli_release_iocbq(phba, irspiocbq);
11635 /* Fake the irspiocbq and copy necessary response information */
11636 lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe);
11642 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
11643 * @phba: Pointer to HBA context object.
11644 * @cqe: Pointer to mailbox completion queue entry.
11646 * This routine process a mailbox completion queue entry with asynchrous
11649 * Return: true if work posted to worker thread, otherwise false.
11652 lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
11654 struct lpfc_cq_event *cq_event;
11655 unsigned long iflags;
11657 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11658 "0392 Async Event: word0:x%x, word1:x%x, "
11659 "word2:x%x, word3:x%x\n", mcqe->word0,
11660 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
11662 /* Allocate a new internal CQ_EVENT entry */
11663 cq_event = lpfc_sli4_cq_event_alloc(phba);
11665 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11666 "0394 Failed to allocate CQ_EVENT entry\n");
11670 /* Move the CQE into an asynchronous event entry */
11671 memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe));
11672 spin_lock_irqsave(&phba->hbalock, iflags);
11673 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
11674 /* Set the async event flag */
11675 phba->hba_flag |= ASYNC_EVENT;
11676 spin_unlock_irqrestore(&phba->hbalock, iflags);
11682 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
11683 * @phba: Pointer to HBA context object.
11684 * @cqe: Pointer to mailbox completion queue entry.
11686 * This routine process a mailbox completion queue entry with mailbox
11687 * completion event.
11689 * Return: true if work posted to worker thread, otherwise false.
11692 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
11694 uint32_t mcqe_status;
11695 MAILBOX_t *mbox, *pmbox;
11696 struct lpfc_mqe *mqe;
11697 struct lpfc_vport *vport;
11698 struct lpfc_nodelist *ndlp;
11699 struct lpfc_dmabuf *mp;
11700 unsigned long iflags;
11702 bool workposted = false;
11705 /* If not a mailbox complete MCQE, out by checking mailbox consume */
11706 if (!bf_get(lpfc_trailer_completed, mcqe))
11707 goto out_no_mqe_complete;
11709 /* Get the reference to the active mbox command */
11710 spin_lock_irqsave(&phba->hbalock, iflags);
11711 pmb = phba->sli.mbox_active;
11712 if (unlikely(!pmb)) {
11713 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
11714 "1832 No pending MBOX command to handle\n");
11715 spin_unlock_irqrestore(&phba->hbalock, iflags);
11716 goto out_no_mqe_complete;
11718 spin_unlock_irqrestore(&phba->hbalock, iflags);
11720 pmbox = (MAILBOX_t *)&pmb->u.mqe;
11722 vport = pmb->vport;
11724 /* Reset heartbeat timer */
11725 phba->last_completion_time = jiffies;
11726 del_timer(&phba->sli.mbox_tmo);
11728 /* Move mbox data to caller's mailbox region, do endian swapping */
11729 if (pmb->mbox_cmpl && mbox)
11730 lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
11733 * For mcqe errors, conditionally move a modified error code to
11734 * the mbox so that the error will not be missed.
11736 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
11737 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
11738 if (bf_get(lpfc_mqe_status, mqe) == MBX_SUCCESS)
11739 bf_set(lpfc_mqe_status, mqe,
11740 (LPFC_MBX_ERROR_RANGE | mcqe_status));
11742 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
11743 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
11744 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
11745 "MBOX dflt rpi: status:x%x rpi:x%x",
11747 pmbox->un.varWords[0], 0);
11748 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
11749 mp = (struct lpfc_dmabuf *)(pmb->context1);
11750 ndlp = (struct lpfc_nodelist *)pmb->context2;
11751 /* Reg_LOGIN of dflt RPI was successful. Now lets get
11752 * RID of the PPI using the same mbox buffer.
11754 lpfc_unreg_login(phba, vport->vpi,
11755 pmbox->un.varWords[0], pmb);
11756 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
11757 pmb->context1 = mp;
11758 pmb->context2 = ndlp;
11759 pmb->vport = vport;
11760 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
11761 if (rc != MBX_BUSY)
11762 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
11763 LOG_SLI, "0385 rc should "
11764 "have been MBX_BUSY\n");
11765 if (rc != MBX_NOT_FINISHED)
11766 goto send_current_mbox;
11769 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
11770 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
11771 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
11773 /* There is mailbox completion work to do */
11774 spin_lock_irqsave(&phba->hbalock, iflags);
11775 __lpfc_mbox_cmpl_put(phba, pmb);
11776 phba->work_ha |= HA_MBATT;
11777 spin_unlock_irqrestore(&phba->hbalock, iflags);
11781 spin_lock_irqsave(&phba->hbalock, iflags);
11782 /* Release the mailbox command posting token */
11783 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
11784 /* Setting active mailbox pointer need to be in sync to flag clear */
11785 phba->sli.mbox_active = NULL;
11786 spin_unlock_irqrestore(&phba->hbalock, iflags);
11787 /* Wake up worker thread to post the next pending mailbox command */
11788 lpfc_worker_wake_up(phba);
11789 out_no_mqe_complete:
11790 if (bf_get(lpfc_trailer_consumed, mcqe))
11791 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
11796 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
11797 * @phba: Pointer to HBA context object.
11798 * @cqe: Pointer to mailbox completion queue entry.
11800 * This routine process a mailbox completion queue entry, it invokes the
11801 * proper mailbox complete handling or asynchrous event handling routine
11802 * according to the MCQE's async bit.
11804 * Return: true if work posted to worker thread, otherwise false.
11807 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
11809 struct lpfc_mcqe mcqe;
11812 /* Copy the mailbox MCQE and convert endian order as needed */
11813 lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
11815 /* Invoke the proper event handling routine */
11816 if (!bf_get(lpfc_trailer_async, &mcqe))
11817 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
11819 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
11824 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
11825 * @phba: Pointer to HBA context object.
11826 * @cq: Pointer to associated CQ
11827 * @wcqe: Pointer to work-queue completion queue entry.
11829 * This routine handles an ELS work-queue completion event.
11831 * Return: true if work posted to worker thread, otherwise false.
11834 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11835 struct lpfc_wcqe_complete *wcqe)
11837 struct lpfc_iocbq *irspiocbq;
11838 unsigned long iflags;
11839 struct lpfc_sli_ring *pring = cq->pring;
11841 int txcmplq_cnt = 0;
11842 int fcp_txcmplq_cnt = 0;
11844 /* Get an irspiocbq for later ELS response processing use */
11845 irspiocbq = lpfc_sli_get_iocbq(phba);
11847 if (!list_empty(&pring->txq))
11849 if (!list_empty(&pring->txcmplq))
11851 if (!list_empty(&phba->sli.ring[LPFC_FCP_RING].txcmplq))
11853 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11854 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
11855 "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n",
11856 txq_cnt, phba->iocb_cnt,
11862 /* Save off the slow-path queue event for work thread to process */
11863 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
11864 spin_lock_irqsave(&phba->hbalock, iflags);
11865 list_add_tail(&irspiocbq->cq_event.list,
11866 &phba->sli4_hba.sp_queue_event);
11867 phba->hba_flag |= HBA_SP_QUEUE_EVT;
11868 spin_unlock_irqrestore(&phba->hbalock, iflags);
11874 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
11875 * @phba: Pointer to HBA context object.
11876 * @wcqe: Pointer to work-queue completion queue entry.
11878 * This routine handles slow-path WQ entry comsumed event by invoking the
11879 * proper WQ release routine to the slow-path WQ.
11882 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
11883 struct lpfc_wcqe_release *wcqe)
11885 /* sanity check on queue memory */
11886 if (unlikely(!phba->sli4_hba.els_wq))
11888 /* Check for the slow-path ELS work queue */
11889 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
11890 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
11891 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
11893 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11894 "2579 Slow-path wqe consume event carries "
11895 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
11896 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
11897 phba->sli4_hba.els_wq->queue_id);
11901 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
11902 * @phba: Pointer to HBA context object.
11903 * @cq: Pointer to a WQ completion queue.
11904 * @wcqe: Pointer to work-queue completion queue entry.
11906 * This routine handles an XRI abort event.
11908 * Return: true if work posted to worker thread, otherwise false.
11911 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
11912 struct lpfc_queue *cq,
11913 struct sli4_wcqe_xri_aborted *wcqe)
11915 bool workposted = false;
11916 struct lpfc_cq_event *cq_event;
11917 unsigned long iflags;
11919 /* Allocate a new internal CQ_EVENT entry */
11920 cq_event = lpfc_sli4_cq_event_alloc(phba);
11922 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11923 "0602 Failed to allocate CQ_EVENT entry\n");
11927 /* Move the CQE into the proper xri abort event list */
11928 memcpy(&cq_event->cqe, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
11929 switch (cq->subtype) {
11931 spin_lock_irqsave(&phba->hbalock, iflags);
11932 list_add_tail(&cq_event->list,
11933 &phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
11934 /* Set the fcp xri abort event flag */
11935 phba->hba_flag |= FCP_XRI_ABORT_EVENT;
11936 spin_unlock_irqrestore(&phba->hbalock, iflags);
11940 spin_lock_irqsave(&phba->hbalock, iflags);
11941 list_add_tail(&cq_event->list,
11942 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
11943 /* Set the els xri abort event flag */
11944 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
11945 spin_unlock_irqrestore(&phba->hbalock, iflags);
11949 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11950 "0603 Invalid work queue CQE subtype (x%x)\n",
11952 workposted = false;
11959 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
11960 * @phba: Pointer to HBA context object.
11961 * @rcqe: Pointer to receive-queue completion queue entry.
11963 * This routine process a receive-queue completion queue entry.
11965 * Return: true if work posted to worker thread, otherwise false.
11968 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
11970 bool workposted = false;
11971 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
11972 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
11973 struct hbq_dmabuf *dma_buf;
11974 uint32_t status, rq_id;
11975 unsigned long iflags;
11977 /* sanity check on queue memory */
11978 if (unlikely(!hrq) || unlikely(!drq))
11981 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
11982 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
11984 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
11985 if (rq_id != hrq->queue_id)
11988 status = bf_get(lpfc_rcqe_status, rcqe);
11990 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
11991 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11992 "2537 Receive Frame Truncated!!\n");
11993 hrq->RQ_buf_trunc++;
11994 case FC_STATUS_RQ_SUCCESS:
11995 lpfc_sli4_rq_release(hrq, drq);
11996 spin_lock_irqsave(&phba->hbalock, iflags);
11997 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
11999 hrq->RQ_no_buf_found++;
12000 spin_unlock_irqrestore(&phba->hbalock, iflags);
12004 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
12005 /* save off the frame for the word thread to process */
12006 list_add_tail(&dma_buf->cq_event.list,
12007 &phba->sli4_hba.sp_queue_event);
12008 /* Frame received */
12009 phba->hba_flag |= HBA_SP_QUEUE_EVT;
12010 spin_unlock_irqrestore(&phba->hbalock, iflags);
12013 case FC_STATUS_INSUFF_BUF_NEED_BUF:
12014 case FC_STATUS_INSUFF_BUF_FRM_DISC:
12015 hrq->RQ_no_posted_buf++;
12016 /* Post more buffers if possible */
12017 spin_lock_irqsave(&phba->hbalock, iflags);
12018 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
12019 spin_unlock_irqrestore(&phba->hbalock, iflags);
12028 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
12029 * @phba: Pointer to HBA context object.
12030 * @cq: Pointer to the completion queue.
12031 * @wcqe: Pointer to a completion queue entry.
12033 * This routine process a slow-path work-queue or receive queue completion queue
12036 * Return: true if work posted to worker thread, otherwise false.
12039 lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
12040 struct lpfc_cqe *cqe)
12042 struct lpfc_cqe cqevt;
12043 bool workposted = false;
12045 /* Copy the work queue CQE and convert endian order if needed */
12046 lpfc_sli_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
12048 /* Check and process for different type of WCQE and dispatch */
12049 switch (bf_get(lpfc_cqe_code, &cqevt)) {
12050 case CQE_CODE_COMPL_WQE:
12051 /* Process the WQ/RQ complete event */
12052 phba->last_completion_time = jiffies;
12053 workposted = lpfc_sli4_sp_handle_els_wcqe(phba, cq,
12054 (struct lpfc_wcqe_complete *)&cqevt);
12056 case CQE_CODE_RELEASE_WQE:
12057 /* Process the WQ release event */
12058 lpfc_sli4_sp_handle_rel_wcqe(phba,
12059 (struct lpfc_wcqe_release *)&cqevt);
12061 case CQE_CODE_XRI_ABORTED:
12062 /* Process the WQ XRI abort event */
12063 phba->last_completion_time = jiffies;
12064 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
12065 (struct sli4_wcqe_xri_aborted *)&cqevt);
12067 case CQE_CODE_RECEIVE:
12068 case CQE_CODE_RECEIVE_V1:
12069 /* Process the RQ event */
12070 phba->last_completion_time = jiffies;
12071 workposted = lpfc_sli4_sp_handle_rcqe(phba,
12072 (struct lpfc_rcqe *)&cqevt);
12075 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12076 "0388 Not a valid WCQE code: x%x\n",
12077 bf_get(lpfc_cqe_code, &cqevt));
12084 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
12085 * @phba: Pointer to HBA context object.
12086 * @eqe: Pointer to fast-path event queue entry.
12088 * This routine process a event queue entry from the slow-path event queue.
12089 * It will check the MajorCode and MinorCode to determine this is for a
12090 * completion event on a completion queue, if not, an error shall be logged
12091 * and just return. Otherwise, it will get to the corresponding completion
12092 * queue and process all the entries on that completion queue, rearm the
12093 * completion queue, and then return.
12097 lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
12098 struct lpfc_queue *speq)
12100 struct lpfc_queue *cq = NULL, *childq;
12101 struct lpfc_cqe *cqe;
12102 bool workposted = false;
12106 /* Get the reference to the corresponding CQ */
12107 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
12109 list_for_each_entry(childq, &speq->child_list, list) {
12110 if (childq->queue_id == cqid) {
12115 if (unlikely(!cq)) {
12116 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
12117 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12118 "0365 Slow-path CQ identifier "
12119 "(%d) does not exist\n", cqid);
12123 /* Process all the entries to the CQ */
12124 switch (cq->type) {
12126 while ((cqe = lpfc_sli4_cq_get(cq))) {
12127 workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe);
12128 if (!(++ecount % cq->entry_repost))
12129 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
12134 while ((cqe = lpfc_sli4_cq_get(cq))) {
12135 if (cq->subtype == LPFC_FCP)
12136 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq,
12139 workposted |= lpfc_sli4_sp_handle_cqe(phba, cq,
12141 if (!(++ecount % cq->entry_repost))
12142 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
12145 /* Track the max number of CQEs processed in 1 EQ */
12146 if (ecount > cq->CQ_max_cqe)
12147 cq->CQ_max_cqe = ecount;
12150 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12151 "0370 Invalid completion queue type (%d)\n",
12156 /* Catch the no cq entry condition, log an error */
12157 if (unlikely(ecount == 0))
12158 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12159 "0371 No entry from the CQ: identifier "
12160 "(x%x), type (%d)\n", cq->queue_id, cq->type);
12162 /* In any case, flash and re-arm the RCQ */
12163 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
12165 /* wake up worker thread if there are works to be done */
12167 lpfc_worker_wake_up(phba);
12171 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
12172 * @phba: Pointer to HBA context object.
12173 * @cq: Pointer to associated CQ
12174 * @wcqe: Pointer to work-queue completion queue entry.
12176 * This routine process a fast-path work queue completion entry from fast-path
12177 * event queue for FCP command response completion.
12180 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
12181 struct lpfc_wcqe_complete *wcqe)
12183 struct lpfc_sli_ring *pring = cq->pring;
12184 struct lpfc_iocbq *cmdiocbq;
12185 struct lpfc_iocbq irspiocbq;
12186 unsigned long iflags;
12188 /* Check for response status */
12189 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
12190 /* If resource errors reported from HBA, reduce queue
12191 * depth of the SCSI device.
12193 if (((bf_get(lpfc_wcqe_c_status, wcqe) ==
12194 IOSTAT_LOCAL_REJECT)) &&
12195 ((wcqe->parameter & IOERR_PARAM_MASK) ==
12196 IOERR_NO_RESOURCES))
12197 phba->lpfc_rampdown_queue_depth(phba);
12199 /* Log the error status */
12200 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12201 "0373 FCP complete error: status=x%x, "
12202 "hw_status=x%x, total_data_specified=%d, "
12203 "parameter=x%x, word3=x%x\n",
12204 bf_get(lpfc_wcqe_c_status, wcqe),
12205 bf_get(lpfc_wcqe_c_hw_status, wcqe),
12206 wcqe->total_data_placed, wcqe->parameter,
12210 /* Look up the FCP command IOCB and create pseudo response IOCB */
12211 spin_lock_irqsave(&pring->ring_lock, iflags);
12212 pring->stats.iocb_event++;
12213 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
12214 bf_get(lpfc_wcqe_c_request_tag, wcqe));
12215 spin_unlock_irqrestore(&pring->ring_lock, iflags);
12216 if (unlikely(!cmdiocbq)) {
12217 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12218 "0374 FCP complete with no corresponding "
12219 "cmdiocb: iotag (%d)\n",
12220 bf_get(lpfc_wcqe_c_request_tag, wcqe));
12223 if (unlikely(!cmdiocbq->iocb_cmpl)) {
12224 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12225 "0375 FCP cmdiocb not callback function "
12227 bf_get(lpfc_wcqe_c_request_tag, wcqe));
12231 /* Fake the irspiocb and copy necessary response information */
12232 lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
12234 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
12235 spin_lock_irqsave(&phba->hbalock, iflags);
12236 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
12237 spin_unlock_irqrestore(&phba->hbalock, iflags);
12240 /* Pass the cmd_iocb and the rsp state to the upper layer */
12241 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
12245 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
12246 * @phba: Pointer to HBA context object.
12247 * @cq: Pointer to completion queue.
12248 * @wcqe: Pointer to work-queue completion queue entry.
12250 * This routine handles an fast-path WQ entry comsumed event by invoking the
12251 * proper WQ release routine to the slow-path WQ.
12254 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
12255 struct lpfc_wcqe_release *wcqe)
12257 struct lpfc_queue *childwq;
12258 bool wqid_matched = false;
12261 /* Check for fast-path FCP work queue release */
12262 fcp_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
12263 list_for_each_entry(childwq, &cq->child_list, list) {
12264 if (childwq->queue_id == fcp_wqid) {
12265 lpfc_sli4_wq_release(childwq,
12266 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
12267 wqid_matched = true;
12271 /* Report warning log message if no match found */
12272 if (wqid_matched != true)
12273 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12274 "2580 Fast-path wqe consume event carries "
12275 "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid);
12279 * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry
12280 * @cq: Pointer to the completion queue.
12281 * @eqe: Pointer to fast-path completion queue entry.
12283 * This routine process a fast-path work queue completion entry from fast-path
12284 * event queue for FCP command response completion.
12287 lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
12288 struct lpfc_cqe *cqe)
12290 struct lpfc_wcqe_release wcqe;
12291 bool workposted = false;
12293 /* Copy the work queue CQE and convert endian order if needed */
12294 lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
12296 /* Check and process for different type of WCQE and dispatch */
12297 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
12298 case CQE_CODE_COMPL_WQE:
12300 /* Process the WQ complete event */
12301 phba->last_completion_time = jiffies;
12302 lpfc_sli4_fp_handle_fcp_wcqe(phba, cq,
12303 (struct lpfc_wcqe_complete *)&wcqe);
12305 case CQE_CODE_RELEASE_WQE:
12306 cq->CQ_release_wqe++;
12307 /* Process the WQ release event */
12308 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
12309 (struct lpfc_wcqe_release *)&wcqe);
12311 case CQE_CODE_XRI_ABORTED:
12312 cq->CQ_xri_aborted++;
12313 /* Process the WQ XRI abort event */
12314 phba->last_completion_time = jiffies;
12315 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
12316 (struct sli4_wcqe_xri_aborted *)&wcqe);
12319 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12320 "0144 Not a valid WCQE code: x%x\n",
12321 bf_get(lpfc_wcqe_c_code, &wcqe));
12328 * lpfc_sli4_hba_handle_eqe - Process a fast-path event queue entry
12329 * @phba: Pointer to HBA context object.
12330 * @eqe: Pointer to fast-path event queue entry.
12332 * This routine process a event queue entry from the fast-path event queue.
12333 * It will check the MajorCode and MinorCode to determine this is for a
12334 * completion event on a completion queue, if not, an error shall be logged
12335 * and just return. Otherwise, it will get to the corresponding completion
12336 * queue and process all the entries on the completion queue, rearm the
12337 * completion queue, and then return.
12340 lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
12343 struct lpfc_queue *cq;
12344 struct lpfc_cqe *cqe;
12345 bool workposted = false;
12349 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
12350 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12351 "0366 Not a valid completion "
12352 "event: majorcode=x%x, minorcode=x%x\n",
12353 bf_get_le32(lpfc_eqe_major_code, eqe),
12354 bf_get_le32(lpfc_eqe_minor_code, eqe));
12358 /* Get the reference to the corresponding CQ */
12359 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
12361 /* Check if this is a Slow path event */
12362 if (unlikely(cqid != phba->sli4_hba.fcp_cq_map[qidx])) {
12363 lpfc_sli4_sp_handle_eqe(phba, eqe,
12364 phba->sli4_hba.hba_eq[qidx]);
12368 if (unlikely(!phba->sli4_hba.fcp_cq)) {
12369 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12370 "3146 Fast-path completion queues "
12371 "does not exist\n");
12374 cq = phba->sli4_hba.fcp_cq[qidx];
12375 if (unlikely(!cq)) {
12376 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
12377 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12378 "0367 Fast-path completion queue "
12379 "(%d) does not exist\n", qidx);
12383 if (unlikely(cqid != cq->queue_id)) {
12384 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12385 "0368 Miss-matched fast-path completion "
12386 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
12387 cqid, cq->queue_id);
12391 /* Process all the entries to the CQ */
12392 while ((cqe = lpfc_sli4_cq_get(cq))) {
12393 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe);
12394 if (!(++ecount % cq->entry_repost))
12395 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
12398 /* Track the max number of CQEs processed in 1 EQ */
12399 if (ecount > cq->CQ_max_cqe)
12400 cq->CQ_max_cqe = ecount;
12402 /* Catch the no cq entry condition */
12403 if (unlikely(ecount == 0))
12404 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12405 "0369 No entry from fast-path completion "
12406 "queue fcpcqid=%d\n", cq->queue_id);
12408 /* In any case, flash and re-arm the CQ */
12409 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
12411 /* wake up worker thread if there are works to be done */
12413 lpfc_worker_wake_up(phba);
12417 lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
12419 struct lpfc_eqe *eqe;
12421 /* walk all the EQ entries and drop on the floor */
12422 while ((eqe = lpfc_sli4_eq_get(eq)))
12425 /* Clear and re-arm the EQ */
12426 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
12431 * lpfc_sli4_fof_handle_eqe - Process a Flash Optimized Fabric event queue
12433 * @phba: Pointer to HBA context object.
12434 * @eqe: Pointer to fast-path event queue entry.
12436 * This routine process a event queue entry from the Flash Optimized Fabric
12437 * event queue. It will check the MajorCode and MinorCode to determine this
12438 * is for a completion event on a completion queue, if not, an error shall be
12439 * logged and just return. Otherwise, it will get to the corresponding
12440 * completion queue and process all the entries on the completion queue, rearm
12441 * the completion queue, and then return.
12444 lpfc_sli4_fof_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe)
12446 struct lpfc_queue *cq;
12447 struct lpfc_cqe *cqe;
12448 bool workposted = false;
12452 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
12453 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12454 "9147 Not a valid completion "
12455 "event: majorcode=x%x, minorcode=x%x\n",
12456 bf_get_le32(lpfc_eqe_major_code, eqe),
12457 bf_get_le32(lpfc_eqe_minor_code, eqe));
12461 /* Get the reference to the corresponding CQ */
12462 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
12464 /* Next check for OAS */
12465 cq = phba->sli4_hba.oas_cq;
12466 if (unlikely(!cq)) {
12467 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
12468 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12469 "9148 OAS completion queue "
12470 "does not exist\n");
12474 if (unlikely(cqid != cq->queue_id)) {
12475 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12476 "9149 Miss-matched fast-path compl "
12477 "queue id: eqcqid=%d, fcpcqid=%d\n",
12478 cqid, cq->queue_id);
12482 /* Process all the entries to the OAS CQ */
12483 while ((cqe = lpfc_sli4_cq_get(cq))) {
12484 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe);
12485 if (!(++ecount % cq->entry_repost))
12486 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
12489 /* Track the max number of CQEs processed in 1 EQ */
12490 if (ecount > cq->CQ_max_cqe)
12491 cq->CQ_max_cqe = ecount;
12493 /* Catch the no cq entry condition */
12494 if (unlikely(ecount == 0))
12495 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12496 "9153 No entry from fast-path completion "
12497 "queue fcpcqid=%d\n", cq->queue_id);
12499 /* In any case, flash and re-arm the CQ */
12500 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
12502 /* wake up worker thread if there are works to be done */
12504 lpfc_worker_wake_up(phba);
12508 * lpfc_sli4_fof_intr_handler - HBA interrupt handler to SLI-4 device
12509 * @irq: Interrupt number.
12510 * @dev_id: The device context pointer.
12512 * This function is directly called from the PCI layer as an interrupt
12513 * service routine when device with SLI-4 interface spec is enabled with
12514 * MSI-X multi-message interrupt mode and there is a Flash Optimized Fabric
12515 * IOCB ring event in the HBA. However, when the device is enabled with either
12516 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
12517 * device-level interrupt handler. When the PCI slot is in error recovery
12518 * or the HBA is undergoing initialization, the interrupt handler will not
12519 * process the interrupt. The Flash Optimized Fabric ring event are handled in
12520 * the intrrupt context. This function is called without any lock held.
12521 * It gets the hbalock to access and update SLI data structures. Note that,
12522 * the EQ to CQ are one-to-one map such that the EQ index is
12523 * equal to that of CQ index.
12525 * This function returns IRQ_HANDLED when interrupt is handled else it
12526 * returns IRQ_NONE.
12529 lpfc_sli4_fof_intr_handler(int irq, void *dev_id)
12531 struct lpfc_hba *phba;
12532 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
12533 struct lpfc_queue *eq;
12534 struct lpfc_eqe *eqe;
12535 unsigned long iflag;
12538 /* Get the driver's phba structure from the dev_id */
12539 fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id;
12540 phba = fcp_eq_hdl->phba;
12542 if (unlikely(!phba))
12545 /* Get to the EQ struct associated with this vector */
12546 eq = phba->sli4_hba.fof_eq;
12550 /* Check device state for handling interrupt */
12551 if (unlikely(lpfc_intr_state_check(phba))) {
12553 /* Check again for link_state with lock held */
12554 spin_lock_irqsave(&phba->hbalock, iflag);
12555 if (phba->link_state < LPFC_LINK_DOWN)
12556 /* Flush, clear interrupt, and rearm the EQ */
12557 lpfc_sli4_eq_flush(phba, eq);
12558 spin_unlock_irqrestore(&phba->hbalock, iflag);
12563 * Process all the event on FCP fast-path EQ
12565 while ((eqe = lpfc_sli4_eq_get(eq))) {
12566 lpfc_sli4_fof_handle_eqe(phba, eqe);
12567 if (!(++ecount % eq->entry_repost))
12568 lpfc_sli4_eq_release(eq, LPFC_QUEUE_NOARM);
12569 eq->EQ_processed++;
12572 /* Track the max number of EQEs processed in 1 intr */
12573 if (ecount > eq->EQ_max_eqe)
12574 eq->EQ_max_eqe = ecount;
12577 if (unlikely(ecount == 0)) {
12580 if (phba->intr_type == MSIX)
12581 /* MSI-X treated interrupt served as no EQ share INT */
12582 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12583 "9145 MSI-X interrupt with no EQE\n");
12585 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12586 "9146 ISR interrupt with no EQE\n");
12587 /* Non MSI-X treated on interrupt as EQ share INT */
12591 /* Always clear and re-arm the fast-path EQ */
12592 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
12593 return IRQ_HANDLED;
12597 * lpfc_sli4_hba_intr_handler - HBA interrupt handler to SLI-4 device
12598 * @irq: Interrupt number.
12599 * @dev_id: The device context pointer.
12601 * This function is directly called from the PCI layer as an interrupt
12602 * service routine when device with SLI-4 interface spec is enabled with
12603 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
12604 * ring event in the HBA. However, when the device is enabled with either
12605 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
12606 * device-level interrupt handler. When the PCI slot is in error recovery
12607 * or the HBA is undergoing initialization, the interrupt handler will not
12608 * process the interrupt. The SCSI FCP fast-path ring event are handled in
12609 * the intrrupt context. This function is called without any lock held.
12610 * It gets the hbalock to access and update SLI data structures. Note that,
12611 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
12612 * equal to that of FCP CQ index.
12614 * The link attention and ELS ring attention events are handled
12615 * by the worker thread. The interrupt handler signals the worker thread
12616 * and returns for these events. This function is called without any lock
12617 * held. It gets the hbalock to access and update SLI data structures.
12619 * This function returns IRQ_HANDLED when interrupt is handled else it
12620 * returns IRQ_NONE.
12623 lpfc_sli4_hba_intr_handler(int irq, void *dev_id)
12625 struct lpfc_hba *phba;
12626 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
12627 struct lpfc_queue *fpeq;
12628 struct lpfc_eqe *eqe;
12629 unsigned long iflag;
12633 /* Get the driver's phba structure from the dev_id */
12634 fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id;
12635 phba = fcp_eq_hdl->phba;
12636 fcp_eqidx = fcp_eq_hdl->idx;
12638 if (unlikely(!phba))
12640 if (unlikely(!phba->sli4_hba.hba_eq))
12643 /* Get to the EQ struct associated with this vector */
12644 fpeq = phba->sli4_hba.hba_eq[fcp_eqidx];
12645 if (unlikely(!fpeq))
12648 if (lpfc_fcp_look_ahead) {
12649 if (atomic_dec_and_test(&fcp_eq_hdl->fcp_eq_in_use))
12650 lpfc_sli4_eq_clr_intr(fpeq);
12652 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12657 /* Check device state for handling interrupt */
12658 if (unlikely(lpfc_intr_state_check(phba))) {
12659 fpeq->EQ_badstate++;
12660 /* Check again for link_state with lock held */
12661 spin_lock_irqsave(&phba->hbalock, iflag);
12662 if (phba->link_state < LPFC_LINK_DOWN)
12663 /* Flush, clear interrupt, and rearm the EQ */
12664 lpfc_sli4_eq_flush(phba, fpeq);
12665 spin_unlock_irqrestore(&phba->hbalock, iflag);
12666 if (lpfc_fcp_look_ahead)
12667 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12672 * Process all the event on FCP fast-path EQ
12674 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
12678 lpfc_sli4_hba_handle_eqe(phba, eqe, fcp_eqidx);
12679 if (!(++ecount % fpeq->entry_repost))
12680 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM);
12681 fpeq->EQ_processed++;
12684 /* Track the max number of EQEs processed in 1 intr */
12685 if (ecount > fpeq->EQ_max_eqe)
12686 fpeq->EQ_max_eqe = ecount;
12688 /* Always clear and re-arm the fast-path EQ */
12689 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
12691 if (unlikely(ecount == 0)) {
12692 fpeq->EQ_no_entry++;
12694 if (lpfc_fcp_look_ahead) {
12695 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12699 if (phba->intr_type == MSIX)
12700 /* MSI-X treated interrupt served as no EQ share INT */
12701 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12702 "0358 MSI-X interrupt with no EQE\n");
12704 /* Non MSI-X treated on interrupt as EQ share INT */
12708 if (lpfc_fcp_look_ahead)
12709 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12710 return IRQ_HANDLED;
12711 } /* lpfc_sli4_fp_intr_handler */
12714 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
12715 * @irq: Interrupt number.
12716 * @dev_id: The device context pointer.
12718 * This function is the device-level interrupt handler to device with SLI-4
12719 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
12720 * interrupt mode is enabled and there is an event in the HBA which requires
12721 * driver attention. This function invokes the slow-path interrupt attention
12722 * handling function and fast-path interrupt attention handling function in
12723 * turn to process the relevant HBA attention events. This function is called
12724 * without any lock held. It gets the hbalock to access and update SLI data
12727 * This function returns IRQ_HANDLED when interrupt is handled, else it
12728 * returns IRQ_NONE.
12731 lpfc_sli4_intr_handler(int irq, void *dev_id)
12733 struct lpfc_hba *phba;
12734 irqreturn_t hba_irq_rc;
12735 bool hba_handled = false;
12738 /* Get the driver's phba structure from the dev_id */
12739 phba = (struct lpfc_hba *)dev_id;
12741 if (unlikely(!phba))
12745 * Invoke fast-path host attention interrupt handling as appropriate.
12747 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
12748 hba_irq_rc = lpfc_sli4_hba_intr_handler(irq,
12749 &phba->sli4_hba.fcp_eq_hdl[fcp_eqidx]);
12750 if (hba_irq_rc == IRQ_HANDLED)
12751 hba_handled |= true;
12754 if (phba->cfg_fof) {
12755 hba_irq_rc = lpfc_sli4_fof_intr_handler(irq,
12756 &phba->sli4_hba.fcp_eq_hdl[0]);
12757 if (hba_irq_rc == IRQ_HANDLED)
12758 hba_handled |= true;
12761 return (hba_handled == true) ? IRQ_HANDLED : IRQ_NONE;
12762 } /* lpfc_sli4_intr_handler */
12765 * lpfc_sli4_queue_free - free a queue structure and associated memory
12766 * @queue: The queue structure to free.
12768 * This function frees a queue structure and the DMAable memory used for
12769 * the host resident queue. This function must be called after destroying the
12770 * queue on the HBA.
12773 lpfc_sli4_queue_free(struct lpfc_queue *queue)
12775 struct lpfc_dmabuf *dmabuf;
12780 while (!list_empty(&queue->page_list)) {
12781 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
12783 dma_free_coherent(&queue->phba->pcidev->dev, SLI4_PAGE_SIZE,
12784 dmabuf->virt, dmabuf->phys);
12792 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
12793 * @phba: The HBA that this queue is being created on.
12794 * @entry_size: The size of each queue entry for this queue.
12795 * @entry count: The number of entries that this queue will handle.
12797 * This function allocates a queue structure and the DMAable memory used for
12798 * the host resident queue. This function must be called before creating the
12799 * queue on the HBA.
12801 struct lpfc_queue *
12802 lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size,
12803 uint32_t entry_count)
12805 struct lpfc_queue *queue;
12806 struct lpfc_dmabuf *dmabuf;
12807 int x, total_qe_count;
12809 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12811 if (!phba->sli4_hba.pc_sli4_params.supported)
12812 hw_page_size = SLI4_PAGE_SIZE;
12814 queue = kzalloc(sizeof(struct lpfc_queue) +
12815 (sizeof(union sli4_qe) * entry_count), GFP_KERNEL);
12818 queue->page_count = (ALIGN(entry_size * entry_count,
12819 hw_page_size))/hw_page_size;
12820 INIT_LIST_HEAD(&queue->list);
12821 INIT_LIST_HEAD(&queue->page_list);
12822 INIT_LIST_HEAD(&queue->child_list);
12823 for (x = 0, total_qe_count = 0; x < queue->page_count; x++) {
12824 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
12827 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
12828 hw_page_size, &dmabuf->phys,
12830 if (!dmabuf->virt) {
12834 dmabuf->buffer_tag = x;
12835 list_add_tail(&dmabuf->list, &queue->page_list);
12836 /* initialize queue's entry array */
12837 dma_pointer = dmabuf->virt;
12838 for (; total_qe_count < entry_count &&
12839 dma_pointer < (hw_page_size + dmabuf->virt);
12840 total_qe_count++, dma_pointer += entry_size) {
12841 queue->qe[total_qe_count].address = dma_pointer;
12844 queue->entry_size = entry_size;
12845 queue->entry_count = entry_count;
12848 * entry_repost is calculated based on the number of entries in the
12849 * queue. This works out except for RQs. If buffers are NOT initially
12850 * posted for every RQE, entry_repost should be adjusted accordingly.
12852 queue->entry_repost = (entry_count >> 3);
12853 if (queue->entry_repost < LPFC_QUEUE_MIN_REPOST)
12854 queue->entry_repost = LPFC_QUEUE_MIN_REPOST;
12855 queue->phba = phba;
12859 lpfc_sli4_queue_free(queue);
12864 * lpfc_dual_chute_pci_bar_map - Map pci base address register to host memory
12865 * @phba: HBA structure that indicates port to create a queue on.
12866 * @pci_barset: PCI BAR set flag.
12868 * This function shall perform iomap of the specified PCI BAR address to host
12869 * memory address if not already done so and return it. The returned host
12870 * memory address can be NULL.
12872 static void __iomem *
12873 lpfc_dual_chute_pci_bar_map(struct lpfc_hba *phba, uint16_t pci_barset)
12878 switch (pci_barset) {
12879 case WQ_PCI_BAR_0_AND_1:
12880 return phba->pci_bar0_memmap_p;
12881 case WQ_PCI_BAR_2_AND_3:
12882 return phba->pci_bar2_memmap_p;
12883 case WQ_PCI_BAR_4_AND_5:
12884 return phba->pci_bar4_memmap_p;
12892 * lpfc_modify_fcp_eq_delay - Modify Delay Multiplier on FCP EQs
12893 * @phba: HBA structure that indicates port to create a queue on.
12894 * @startq: The starting FCP EQ to modify
12896 * This function sends an MODIFY_EQ_DELAY mailbox command to the HBA.
12898 * The @phba struct is used to send mailbox command to HBA. The @startq
12899 * is used to get the starting FCP EQ to change.
12900 * This function is asynchronous and will wait for the mailbox
12901 * command to finish before continuing.
12903 * On success this function will return a zero. If unable to allocate enough
12904 * memory this function will return -ENOMEM. If the queue create mailbox command
12905 * fails this function will return -ENXIO.
12908 lpfc_modify_fcp_eq_delay(struct lpfc_hba *phba, uint32_t startq)
12910 struct lpfc_mbx_modify_eq_delay *eq_delay;
12911 LPFC_MBOXQ_t *mbox;
12912 struct lpfc_queue *eq;
12913 int cnt, rc, length, status = 0;
12914 uint32_t shdr_status, shdr_add_status;
12917 union lpfc_sli4_cfg_shdr *shdr;
12920 if (startq >= phba->cfg_fcp_io_channel)
12923 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12926 length = (sizeof(struct lpfc_mbx_modify_eq_delay) -
12927 sizeof(struct lpfc_sli4_cfg_mhdr));
12928 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12929 LPFC_MBOX_OPCODE_MODIFY_EQ_DELAY,
12930 length, LPFC_SLI4_MBX_EMBED);
12931 eq_delay = &mbox->u.mqe.un.eq_delay;
12933 /* Calculate delay multiper from maximum interrupt per second */
12934 result = phba->cfg_fcp_imax / phba->cfg_fcp_io_channel;
12935 if (result > LPFC_DMULT_CONST)
12938 dmult = LPFC_DMULT_CONST/result - 1;
12941 for (fcp_eqidx = startq; fcp_eqidx < phba->cfg_fcp_io_channel;
12943 eq = phba->sli4_hba.hba_eq[fcp_eqidx];
12946 eq_delay->u.request.eq[cnt].eq_id = eq->queue_id;
12947 eq_delay->u.request.eq[cnt].phase = 0;
12948 eq_delay->u.request.eq[cnt].delay_multi = dmult;
12950 if (cnt >= LPFC_MAX_EQ_DELAY)
12953 eq_delay->u.request.num_eq = cnt;
12955 mbox->vport = phba->pport;
12956 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12957 mbox->context1 = NULL;
12958 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12959 shdr = (union lpfc_sli4_cfg_shdr *) &eq_delay->header.cfg_shdr;
12960 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12961 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12962 if (shdr_status || shdr_add_status || rc) {
12963 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12964 "2512 MODIFY_EQ_DELAY mailbox failed with "
12965 "status x%x add_status x%x, mbx status x%x\n",
12966 shdr_status, shdr_add_status, rc);
12969 mempool_free(mbox, phba->mbox_mem_pool);
12974 * lpfc_eq_create - Create an Event Queue on the HBA
12975 * @phba: HBA structure that indicates port to create a queue on.
12976 * @eq: The queue structure to use to create the event queue.
12977 * @imax: The maximum interrupt per second limit.
12979 * This function creates an event queue, as detailed in @eq, on a port,
12980 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
12982 * The @phba struct is used to send mailbox command to HBA. The @eq struct
12983 * is used to get the entry count and entry size that are necessary to
12984 * determine the number of pages to allocate and use for this queue. This
12985 * function will send the EQ_CREATE mailbox command to the HBA to setup the
12986 * event queue. This function is asynchronous and will wait for the mailbox
12987 * command to finish before continuing.
12989 * On success this function will return a zero. If unable to allocate enough
12990 * memory this function will return -ENOMEM. If the queue create mailbox command
12991 * fails this function will return -ENXIO.
12994 lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint32_t imax)
12996 struct lpfc_mbx_eq_create *eq_create;
12997 LPFC_MBOXQ_t *mbox;
12998 int rc, length, status = 0;
12999 struct lpfc_dmabuf *dmabuf;
13000 uint32_t shdr_status, shdr_add_status;
13001 union lpfc_sli4_cfg_shdr *shdr;
13003 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
13005 /* sanity check on queue memory */
13008 if (!phba->sli4_hba.pc_sli4_params.supported)
13009 hw_page_size = SLI4_PAGE_SIZE;
13011 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13014 length = (sizeof(struct lpfc_mbx_eq_create) -
13015 sizeof(struct lpfc_sli4_cfg_mhdr));
13016 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13017 LPFC_MBOX_OPCODE_EQ_CREATE,
13018 length, LPFC_SLI4_MBX_EMBED);
13019 eq_create = &mbox->u.mqe.un.eq_create;
13020 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
13022 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
13024 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
13025 /* don't setup delay multiplier using EQ_CREATE */
13027 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
13029 switch (eq->entry_count) {
13031 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13032 "0360 Unsupported EQ count. (%d)\n",
13034 if (eq->entry_count < 256)
13036 /* otherwise default to smallest count (drop through) */
13038 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
13042 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
13046 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
13050 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
13054 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
13058 list_for_each_entry(dmabuf, &eq->page_list, list) {
13059 memset(dmabuf->virt, 0, hw_page_size);
13060 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13061 putPaddrLow(dmabuf->phys);
13062 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13063 putPaddrHigh(dmabuf->phys);
13065 mbox->vport = phba->pport;
13066 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13067 mbox->context1 = NULL;
13068 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13069 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
13070 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13071 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13072 if (shdr_status || shdr_add_status || rc) {
13073 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13074 "2500 EQ_CREATE mailbox failed with "
13075 "status x%x add_status x%x, mbx status x%x\n",
13076 shdr_status, shdr_add_status, rc);
13079 eq->type = LPFC_EQ;
13080 eq->subtype = LPFC_NONE;
13081 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
13082 if (eq->queue_id == 0xFFFF)
13084 eq->host_index = 0;
13087 mempool_free(mbox, phba->mbox_mem_pool);
13092 * lpfc_cq_create - Create a Completion Queue on the HBA
13093 * @phba: HBA structure that indicates port to create a queue on.
13094 * @cq: The queue structure to use to create the completion queue.
13095 * @eq: The event queue to bind this completion queue to.
13097 * This function creates a completion queue, as detailed in @wq, on a port,
13098 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
13100 * The @phba struct is used to send mailbox command to HBA. The @cq struct
13101 * is used to get the entry count and entry size that are necessary to
13102 * determine the number of pages to allocate and use for this queue. The @eq
13103 * is used to indicate which event queue to bind this completion queue to. This
13104 * function will send the CQ_CREATE mailbox command to the HBA to setup the
13105 * completion queue. This function is asynchronous and will wait for the mailbox
13106 * command to finish before continuing.
13108 * On success this function will return a zero. If unable to allocate enough
13109 * memory this function will return -ENOMEM. If the queue create mailbox command
13110 * fails this function will return -ENXIO.
13113 lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
13114 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
13116 struct lpfc_mbx_cq_create *cq_create;
13117 struct lpfc_dmabuf *dmabuf;
13118 LPFC_MBOXQ_t *mbox;
13119 int rc, length, status = 0;
13120 uint32_t shdr_status, shdr_add_status;
13121 union lpfc_sli4_cfg_shdr *shdr;
13122 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
13124 /* sanity check on queue memory */
13127 if (!phba->sli4_hba.pc_sli4_params.supported)
13128 hw_page_size = SLI4_PAGE_SIZE;
13130 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13133 length = (sizeof(struct lpfc_mbx_cq_create) -
13134 sizeof(struct lpfc_sli4_cfg_mhdr));
13135 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13136 LPFC_MBOX_OPCODE_CQ_CREATE,
13137 length, LPFC_SLI4_MBX_EMBED);
13138 cq_create = &mbox->u.mqe.un.cq_create;
13139 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
13140 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
13142 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
13143 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
13144 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13145 phba->sli4_hba.pc_sli4_params.cqv);
13146 if (phba->sli4_hba.pc_sli4_params.cqv == LPFC_Q_CREATE_VERSION_2) {
13147 /* FW only supports 1. Should be PAGE_SIZE/SLI4_PAGE_SIZE */
13148 bf_set(lpfc_mbx_cq_create_page_size, &cq_create->u.request, 1);
13149 bf_set(lpfc_cq_eq_id_2, &cq_create->u.request.context,
13152 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context,
13155 switch (cq->entry_count) {
13157 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13158 "0361 Unsupported CQ count. (%d)\n",
13160 if (cq->entry_count < 256) {
13164 /* otherwise default to smallest count (drop through) */
13166 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
13170 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
13174 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
13178 list_for_each_entry(dmabuf, &cq->page_list, list) {
13179 memset(dmabuf->virt, 0, hw_page_size);
13180 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13181 putPaddrLow(dmabuf->phys);
13182 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13183 putPaddrHigh(dmabuf->phys);
13185 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13187 /* The IOCTL status is embedded in the mailbox subheader. */
13188 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13189 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13190 if (shdr_status || shdr_add_status || rc) {
13191 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13192 "2501 CQ_CREATE mailbox failed with "
13193 "status x%x add_status x%x, mbx status x%x\n",
13194 shdr_status, shdr_add_status, rc);
13198 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
13199 if (cq->queue_id == 0xFFFF) {
13203 /* link the cq onto the parent eq child list */
13204 list_add_tail(&cq->list, &eq->child_list);
13205 /* Set up completion queue's type and subtype */
13207 cq->subtype = subtype;
13208 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
13209 cq->assoc_qid = eq->queue_id;
13210 cq->host_index = 0;
13214 mempool_free(mbox, phba->mbox_mem_pool);
13219 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
13220 * @phba: HBA structure that indicates port to create a queue on.
13221 * @mq: The queue structure to use to create the mailbox queue.
13222 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
13223 * @cq: The completion queue to associate with this cq.
13225 * This function provides failback (fb) functionality when the
13226 * mq_create_ext fails on older FW generations. It's purpose is identical
13227 * to mq_create_ext otherwise.
13229 * This routine cannot fail as all attributes were previously accessed and
13230 * initialized in mq_create_ext.
13233 lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq,
13234 LPFC_MBOXQ_t *mbox, struct lpfc_queue *cq)
13236 struct lpfc_mbx_mq_create *mq_create;
13237 struct lpfc_dmabuf *dmabuf;
13240 length = (sizeof(struct lpfc_mbx_mq_create) -
13241 sizeof(struct lpfc_sli4_cfg_mhdr));
13242 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13243 LPFC_MBOX_OPCODE_MQ_CREATE,
13244 length, LPFC_SLI4_MBX_EMBED);
13245 mq_create = &mbox->u.mqe.un.mq_create;
13246 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
13248 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
13250 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
13251 switch (mq->entry_count) {
13253 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
13254 LPFC_MQ_RING_SIZE_16);
13257 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
13258 LPFC_MQ_RING_SIZE_32);
13261 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
13262 LPFC_MQ_RING_SIZE_64);
13265 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
13266 LPFC_MQ_RING_SIZE_128);
13269 list_for_each_entry(dmabuf, &mq->page_list, list) {
13270 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13271 putPaddrLow(dmabuf->phys);
13272 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13273 putPaddrHigh(dmabuf->phys);
13278 * lpfc_mq_create - Create a mailbox Queue on the HBA
13279 * @phba: HBA structure that indicates port to create a queue on.
13280 * @mq: The queue structure to use to create the mailbox queue.
13281 * @cq: The completion queue to associate with this cq.
13282 * @subtype: The queue's subtype.
13284 * This function creates a mailbox queue, as detailed in @mq, on a port,
13285 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
13287 * The @phba struct is used to send mailbox command to HBA. The @cq struct
13288 * is used to get the entry count and entry size that are necessary to
13289 * determine the number of pages to allocate and use for this queue. This
13290 * function will send the MQ_CREATE mailbox command to the HBA to setup the
13291 * mailbox queue. This function is asynchronous and will wait for the mailbox
13292 * command to finish before continuing.
13294 * On success this function will return a zero. If unable to allocate enough
13295 * memory this function will return -ENOMEM. If the queue create mailbox command
13296 * fails this function will return -ENXIO.
13299 lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
13300 struct lpfc_queue *cq, uint32_t subtype)
13302 struct lpfc_mbx_mq_create *mq_create;
13303 struct lpfc_mbx_mq_create_ext *mq_create_ext;
13304 struct lpfc_dmabuf *dmabuf;
13305 LPFC_MBOXQ_t *mbox;
13306 int rc, length, status = 0;
13307 uint32_t shdr_status, shdr_add_status;
13308 union lpfc_sli4_cfg_shdr *shdr;
13309 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
13311 /* sanity check on queue memory */
13314 if (!phba->sli4_hba.pc_sli4_params.supported)
13315 hw_page_size = SLI4_PAGE_SIZE;
13317 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13320 length = (sizeof(struct lpfc_mbx_mq_create_ext) -
13321 sizeof(struct lpfc_sli4_cfg_mhdr));
13322 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13323 LPFC_MBOX_OPCODE_MQ_CREATE_EXT,
13324 length, LPFC_SLI4_MBX_EMBED);
13326 mq_create_ext = &mbox->u.mqe.un.mq_create_ext;
13327 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr;
13328 bf_set(lpfc_mbx_mq_create_ext_num_pages,
13329 &mq_create_ext->u.request, mq->page_count);
13330 bf_set(lpfc_mbx_mq_create_ext_async_evt_link,
13331 &mq_create_ext->u.request, 1);
13332 bf_set(lpfc_mbx_mq_create_ext_async_evt_fip,
13333 &mq_create_ext->u.request, 1);
13334 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5,
13335 &mq_create_ext->u.request, 1);
13336 bf_set(lpfc_mbx_mq_create_ext_async_evt_fc,
13337 &mq_create_ext->u.request, 1);
13338 bf_set(lpfc_mbx_mq_create_ext_async_evt_sli,
13339 &mq_create_ext->u.request, 1);
13340 bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1);
13341 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13342 phba->sli4_hba.pc_sli4_params.mqv);
13343 if (phba->sli4_hba.pc_sli4_params.mqv == LPFC_Q_CREATE_VERSION_1)
13344 bf_set(lpfc_mbx_mq_create_ext_cq_id, &mq_create_ext->u.request,
13347 bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context,
13349 switch (mq->entry_count) {
13351 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13352 "0362 Unsupported MQ count. (%d)\n",
13354 if (mq->entry_count < 16) {
13358 /* otherwise default to smallest count (drop through) */
13360 bf_set(lpfc_mq_context_ring_size,
13361 &mq_create_ext->u.request.context,
13362 LPFC_MQ_RING_SIZE_16);
13365 bf_set(lpfc_mq_context_ring_size,
13366 &mq_create_ext->u.request.context,
13367 LPFC_MQ_RING_SIZE_32);
13370 bf_set(lpfc_mq_context_ring_size,
13371 &mq_create_ext->u.request.context,
13372 LPFC_MQ_RING_SIZE_64);
13375 bf_set(lpfc_mq_context_ring_size,
13376 &mq_create_ext->u.request.context,
13377 LPFC_MQ_RING_SIZE_128);
13380 list_for_each_entry(dmabuf, &mq->page_list, list) {
13381 memset(dmabuf->virt, 0, hw_page_size);
13382 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_lo =
13383 putPaddrLow(dmabuf->phys);
13384 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_hi =
13385 putPaddrHigh(dmabuf->phys);
13387 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13388 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
13389 &mq_create_ext->u.response);
13390 if (rc != MBX_SUCCESS) {
13391 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13392 "2795 MQ_CREATE_EXT failed with "
13393 "status x%x. Failback to MQ_CREATE.\n",
13395 lpfc_mq_create_fb_init(phba, mq, mbox, cq);
13396 mq_create = &mbox->u.mqe.un.mq_create;
13397 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13398 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
13399 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
13400 &mq_create->u.response);
13403 /* The IOCTL status is embedded in the mailbox subheader. */
13404 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13405 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13406 if (shdr_status || shdr_add_status || rc) {
13407 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13408 "2502 MQ_CREATE mailbox failed with "
13409 "status x%x add_status x%x, mbx status x%x\n",
13410 shdr_status, shdr_add_status, rc);
13414 if (mq->queue_id == 0xFFFF) {
13418 mq->type = LPFC_MQ;
13419 mq->assoc_qid = cq->queue_id;
13420 mq->subtype = subtype;
13421 mq->host_index = 0;
13424 /* link the mq onto the parent cq child list */
13425 list_add_tail(&mq->list, &cq->child_list);
13427 mempool_free(mbox, phba->mbox_mem_pool);
13432 * lpfc_wq_create - Create a Work Queue on the HBA
13433 * @phba: HBA structure that indicates port to create a queue on.
13434 * @wq: The queue structure to use to create the work queue.
13435 * @cq: The completion queue to bind this work queue to.
13436 * @subtype: The subtype of the work queue indicating its functionality.
13438 * This function creates a work queue, as detailed in @wq, on a port, described
13439 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
13441 * The @phba struct is used to send mailbox command to HBA. The @wq struct
13442 * is used to get the entry count and entry size that are necessary to
13443 * determine the number of pages to allocate and use for this queue. The @cq
13444 * is used to indicate which completion queue to bind this work queue to. This
13445 * function will send the WQ_CREATE mailbox command to the HBA to setup the
13446 * work queue. This function is asynchronous and will wait for the mailbox
13447 * command to finish before continuing.
13449 * On success this function will return a zero. If unable to allocate enough
13450 * memory this function will return -ENOMEM. If the queue create mailbox command
13451 * fails this function will return -ENXIO.
13454 lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
13455 struct lpfc_queue *cq, uint32_t subtype)
13457 struct lpfc_mbx_wq_create *wq_create;
13458 struct lpfc_dmabuf *dmabuf;
13459 LPFC_MBOXQ_t *mbox;
13460 int rc, length, status = 0;
13461 uint32_t shdr_status, shdr_add_status;
13462 union lpfc_sli4_cfg_shdr *shdr;
13463 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
13464 struct dma_address *page;
13465 void __iomem *bar_memmap_p;
13466 uint32_t db_offset;
13467 uint16_t pci_barset;
13469 /* sanity check on queue memory */
13472 if (!phba->sli4_hba.pc_sli4_params.supported)
13473 hw_page_size = SLI4_PAGE_SIZE;
13475 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13478 length = (sizeof(struct lpfc_mbx_wq_create) -
13479 sizeof(struct lpfc_sli4_cfg_mhdr));
13480 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13481 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
13482 length, LPFC_SLI4_MBX_EMBED);
13483 wq_create = &mbox->u.mqe.un.wq_create;
13484 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
13485 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
13487 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
13490 /* wqv is the earliest version supported, NOT the latest */
13491 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13492 phba->sli4_hba.pc_sli4_params.wqv);
13494 switch (phba->sli4_hba.pc_sli4_params.wqv) {
13495 case LPFC_Q_CREATE_VERSION_0:
13496 switch (wq->entry_size) {
13499 /* Nothing to do, version 0 ONLY supports 64 byte */
13500 page = wq_create->u.request.page;
13503 if (!(phba->sli4_hba.pc_sli4_params.wqsize &
13504 LPFC_WQ_SZ128_SUPPORT)) {
13508 /* If we get here the HBA MUST also support V1 and
13511 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13512 LPFC_Q_CREATE_VERSION_1);
13514 bf_set(lpfc_mbx_wq_create_wqe_count,
13515 &wq_create->u.request_1, wq->entry_count);
13516 bf_set(lpfc_mbx_wq_create_wqe_size,
13517 &wq_create->u.request_1,
13518 LPFC_WQ_WQE_SIZE_128);
13519 bf_set(lpfc_mbx_wq_create_page_size,
13520 &wq_create->u.request_1,
13521 (PAGE_SIZE/SLI4_PAGE_SIZE));
13522 page = wq_create->u.request_1.page;
13526 case LPFC_Q_CREATE_VERSION_1:
13527 bf_set(lpfc_mbx_wq_create_wqe_count, &wq_create->u.request_1,
13529 switch (wq->entry_size) {
13532 bf_set(lpfc_mbx_wq_create_wqe_size,
13533 &wq_create->u.request_1,
13534 LPFC_WQ_WQE_SIZE_64);
13537 if (!(phba->sli4_hba.pc_sli4_params.wqsize &
13538 LPFC_WQ_SZ128_SUPPORT)) {
13542 bf_set(lpfc_mbx_wq_create_wqe_size,
13543 &wq_create->u.request_1,
13544 LPFC_WQ_WQE_SIZE_128);
13547 bf_set(lpfc_mbx_wq_create_page_size, &wq_create->u.request_1,
13548 (PAGE_SIZE/SLI4_PAGE_SIZE));
13549 page = wq_create->u.request_1.page;
13556 list_for_each_entry(dmabuf, &wq->page_list, list) {
13557 memset(dmabuf->virt, 0, hw_page_size);
13558 page[dmabuf->buffer_tag].addr_lo = putPaddrLow(dmabuf->phys);
13559 page[dmabuf->buffer_tag].addr_hi = putPaddrHigh(dmabuf->phys);
13562 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
13563 bf_set(lpfc_mbx_wq_create_dua, &wq_create->u.request, 1);
13565 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13566 /* The IOCTL status is embedded in the mailbox subheader. */
13567 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13568 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13569 if (shdr_status || shdr_add_status || rc) {
13570 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13571 "2503 WQ_CREATE mailbox failed with "
13572 "status x%x add_status x%x, mbx status x%x\n",
13573 shdr_status, shdr_add_status, rc);
13577 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response);
13578 if (wq->queue_id == 0xFFFF) {
13582 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
13583 wq->db_format = bf_get(lpfc_mbx_wq_create_db_format,
13584 &wq_create->u.response);
13585 if ((wq->db_format != LPFC_DB_LIST_FORMAT) &&
13586 (wq->db_format != LPFC_DB_RING_FORMAT)) {
13587 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13588 "3265 WQ[%d] doorbell format not "
13589 "supported: x%x\n", wq->queue_id,
13594 pci_barset = bf_get(lpfc_mbx_wq_create_bar_set,
13595 &wq_create->u.response);
13596 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
13597 if (!bar_memmap_p) {
13598 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13599 "3263 WQ[%d] failed to memmap pci "
13600 "barset:x%x\n", wq->queue_id,
13605 db_offset = wq_create->u.response.doorbell_offset;
13606 if ((db_offset != LPFC_ULP0_WQ_DOORBELL) &&
13607 (db_offset != LPFC_ULP1_WQ_DOORBELL)) {
13608 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13609 "3252 WQ[%d] doorbell offset not "
13610 "supported: x%x\n", wq->queue_id,
13615 wq->db_regaddr = bar_memmap_p + db_offset;
13616 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13617 "3264 WQ[%d]: barset:x%x, offset:x%x, "
13618 "format:x%x\n", wq->queue_id, pci_barset,
13619 db_offset, wq->db_format);
13621 wq->db_format = LPFC_DB_LIST_FORMAT;
13622 wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
13624 wq->type = LPFC_WQ;
13625 wq->assoc_qid = cq->queue_id;
13626 wq->subtype = subtype;
13627 wq->host_index = 0;
13629 wq->entry_repost = LPFC_RELEASE_NOTIFICATION_INTERVAL;
13631 /* link the wq onto the parent cq child list */
13632 list_add_tail(&wq->list, &cq->child_list);
13634 mempool_free(mbox, phba->mbox_mem_pool);
13639 * lpfc_rq_adjust_repost - Adjust entry_repost for an RQ
13640 * @phba: HBA structure that indicates port to create a queue on.
13641 * @rq: The queue structure to use for the receive queue.
13642 * @qno: The associated HBQ number
13645 * For SLI4 we need to adjust the RQ repost value based on
13646 * the number of buffers that are initially posted to the RQ.
13649 lpfc_rq_adjust_repost(struct lpfc_hba *phba, struct lpfc_queue *rq, int qno)
13653 /* sanity check on queue memory */
13656 cnt = lpfc_hbq_defs[qno]->entry_count;
13658 /* Recalc repost for RQs based on buffers initially posted */
13660 if (cnt < LPFC_QUEUE_MIN_REPOST)
13661 cnt = LPFC_QUEUE_MIN_REPOST;
13663 rq->entry_repost = cnt;
13667 * lpfc_rq_create - Create a Receive Queue on the HBA
13668 * @phba: HBA structure that indicates port to create a queue on.
13669 * @hrq: The queue structure to use to create the header receive queue.
13670 * @drq: The queue structure to use to create the data receive queue.
13671 * @cq: The completion queue to bind this work queue to.
13673 * This function creates a receive buffer queue pair , as detailed in @hrq and
13674 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
13677 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
13678 * struct is used to get the entry count that is necessary to determine the
13679 * number of pages to use for this queue. The @cq is used to indicate which
13680 * completion queue to bind received buffers that are posted to these queues to.
13681 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
13682 * receive queue pair. This function is asynchronous and will wait for the
13683 * mailbox command to finish before continuing.
13685 * On success this function will return a zero. If unable to allocate enough
13686 * memory this function will return -ENOMEM. If the queue create mailbox command
13687 * fails this function will return -ENXIO.
13690 lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
13691 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
13693 struct lpfc_mbx_rq_create *rq_create;
13694 struct lpfc_dmabuf *dmabuf;
13695 LPFC_MBOXQ_t *mbox;
13696 int rc, length, status = 0;
13697 uint32_t shdr_status, shdr_add_status;
13698 union lpfc_sli4_cfg_shdr *shdr;
13699 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
13700 void __iomem *bar_memmap_p;
13701 uint32_t db_offset;
13702 uint16_t pci_barset;
13704 /* sanity check on queue memory */
13705 if (!hrq || !drq || !cq)
13707 if (!phba->sli4_hba.pc_sli4_params.supported)
13708 hw_page_size = SLI4_PAGE_SIZE;
13710 if (hrq->entry_count != drq->entry_count)
13712 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13715 length = (sizeof(struct lpfc_mbx_rq_create) -
13716 sizeof(struct lpfc_sli4_cfg_mhdr));
13717 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13718 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
13719 length, LPFC_SLI4_MBX_EMBED);
13720 rq_create = &mbox->u.mqe.un.rq_create;
13721 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
13722 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13723 phba->sli4_hba.pc_sli4_params.rqv);
13724 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
13725 bf_set(lpfc_rq_context_rqe_count_1,
13726 &rq_create->u.request.context,
13728 rq_create->u.request.context.buffer_size = LPFC_HDR_BUF_SIZE;
13729 bf_set(lpfc_rq_context_rqe_size,
13730 &rq_create->u.request.context,
13732 bf_set(lpfc_rq_context_page_size,
13733 &rq_create->u.request.context,
13734 (PAGE_SIZE/SLI4_PAGE_SIZE));
13736 switch (hrq->entry_count) {
13738 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13739 "2535 Unsupported RQ count. (%d)\n",
13741 if (hrq->entry_count < 512) {
13745 /* otherwise default to smallest count (drop through) */
13747 bf_set(lpfc_rq_context_rqe_count,
13748 &rq_create->u.request.context,
13749 LPFC_RQ_RING_SIZE_512);
13752 bf_set(lpfc_rq_context_rqe_count,
13753 &rq_create->u.request.context,
13754 LPFC_RQ_RING_SIZE_1024);
13757 bf_set(lpfc_rq_context_rqe_count,
13758 &rq_create->u.request.context,
13759 LPFC_RQ_RING_SIZE_2048);
13762 bf_set(lpfc_rq_context_rqe_count,
13763 &rq_create->u.request.context,
13764 LPFC_RQ_RING_SIZE_4096);
13767 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
13768 LPFC_HDR_BUF_SIZE);
13770 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
13772 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
13774 list_for_each_entry(dmabuf, &hrq->page_list, list) {
13775 memset(dmabuf->virt, 0, hw_page_size);
13776 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13777 putPaddrLow(dmabuf->phys);
13778 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13779 putPaddrHigh(dmabuf->phys);
13781 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
13782 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
13784 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13785 /* The IOCTL status is embedded in the mailbox subheader. */
13786 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13787 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13788 if (shdr_status || shdr_add_status || rc) {
13789 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13790 "2504 RQ_CREATE mailbox failed with "
13791 "status x%x add_status x%x, mbx status x%x\n",
13792 shdr_status, shdr_add_status, rc);
13796 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
13797 if (hrq->queue_id == 0xFFFF) {
13802 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
13803 hrq->db_format = bf_get(lpfc_mbx_rq_create_db_format,
13804 &rq_create->u.response);
13805 if ((hrq->db_format != LPFC_DB_LIST_FORMAT) &&
13806 (hrq->db_format != LPFC_DB_RING_FORMAT)) {
13807 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13808 "3262 RQ [%d] doorbell format not "
13809 "supported: x%x\n", hrq->queue_id,
13815 pci_barset = bf_get(lpfc_mbx_rq_create_bar_set,
13816 &rq_create->u.response);
13817 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
13818 if (!bar_memmap_p) {
13819 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13820 "3269 RQ[%d] failed to memmap pci "
13821 "barset:x%x\n", hrq->queue_id,
13827 db_offset = rq_create->u.response.doorbell_offset;
13828 if ((db_offset != LPFC_ULP0_RQ_DOORBELL) &&
13829 (db_offset != LPFC_ULP1_RQ_DOORBELL)) {
13830 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13831 "3270 RQ[%d] doorbell offset not "
13832 "supported: x%x\n", hrq->queue_id,
13837 hrq->db_regaddr = bar_memmap_p + db_offset;
13838 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13839 "3266 RQ[qid:%d]: barset:x%x, offset:x%x, "
13840 "format:x%x\n", hrq->queue_id, pci_barset,
13841 db_offset, hrq->db_format);
13843 hrq->db_format = LPFC_DB_RING_FORMAT;
13844 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
13846 hrq->type = LPFC_HRQ;
13847 hrq->assoc_qid = cq->queue_id;
13848 hrq->subtype = subtype;
13849 hrq->host_index = 0;
13850 hrq->hba_index = 0;
13852 /* now create the data queue */
13853 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13854 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
13855 length, LPFC_SLI4_MBX_EMBED);
13856 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13857 phba->sli4_hba.pc_sli4_params.rqv);
13858 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
13859 bf_set(lpfc_rq_context_rqe_count_1,
13860 &rq_create->u.request.context, hrq->entry_count);
13861 rq_create->u.request.context.buffer_size = LPFC_DATA_BUF_SIZE;
13862 bf_set(lpfc_rq_context_rqe_size, &rq_create->u.request.context,
13864 bf_set(lpfc_rq_context_page_size, &rq_create->u.request.context,
13865 (PAGE_SIZE/SLI4_PAGE_SIZE));
13867 switch (drq->entry_count) {
13869 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13870 "2536 Unsupported RQ count. (%d)\n",
13872 if (drq->entry_count < 512) {
13876 /* otherwise default to smallest count (drop through) */
13878 bf_set(lpfc_rq_context_rqe_count,
13879 &rq_create->u.request.context,
13880 LPFC_RQ_RING_SIZE_512);
13883 bf_set(lpfc_rq_context_rqe_count,
13884 &rq_create->u.request.context,
13885 LPFC_RQ_RING_SIZE_1024);
13888 bf_set(lpfc_rq_context_rqe_count,
13889 &rq_create->u.request.context,
13890 LPFC_RQ_RING_SIZE_2048);
13893 bf_set(lpfc_rq_context_rqe_count,
13894 &rq_create->u.request.context,
13895 LPFC_RQ_RING_SIZE_4096);
13898 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
13899 LPFC_DATA_BUF_SIZE);
13901 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
13903 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
13905 list_for_each_entry(dmabuf, &drq->page_list, list) {
13906 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13907 putPaddrLow(dmabuf->phys);
13908 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13909 putPaddrHigh(dmabuf->phys);
13911 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
13912 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
13913 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13914 /* The IOCTL status is embedded in the mailbox subheader. */
13915 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
13916 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13917 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13918 if (shdr_status || shdr_add_status || rc) {
13922 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
13923 if (drq->queue_id == 0xFFFF) {
13927 drq->type = LPFC_DRQ;
13928 drq->assoc_qid = cq->queue_id;
13929 drq->subtype = subtype;
13930 drq->host_index = 0;
13931 drq->hba_index = 0;
13933 /* link the header and data RQs onto the parent cq child list */
13934 list_add_tail(&hrq->list, &cq->child_list);
13935 list_add_tail(&drq->list, &cq->child_list);
13938 mempool_free(mbox, phba->mbox_mem_pool);
13943 * lpfc_eq_destroy - Destroy an event Queue on the HBA
13944 * @eq: The queue structure associated with the queue to destroy.
13946 * This function destroys a queue, as detailed in @eq by sending an mailbox
13947 * command, specific to the type of queue, to the HBA.
13949 * The @eq struct is used to get the queue ID of the queue to destroy.
13951 * On success this function will return a zero. If the queue destroy mailbox
13952 * command fails this function will return -ENXIO.
13955 lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
13957 LPFC_MBOXQ_t *mbox;
13958 int rc, length, status = 0;
13959 uint32_t shdr_status, shdr_add_status;
13960 union lpfc_sli4_cfg_shdr *shdr;
13962 /* sanity check on queue memory */
13965 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
13968 length = (sizeof(struct lpfc_mbx_eq_destroy) -
13969 sizeof(struct lpfc_sli4_cfg_mhdr));
13970 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13971 LPFC_MBOX_OPCODE_EQ_DESTROY,
13972 length, LPFC_SLI4_MBX_EMBED);
13973 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
13975 mbox->vport = eq->phba->pport;
13976 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13978 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
13979 /* The IOCTL status is embedded in the mailbox subheader. */
13980 shdr = (union lpfc_sli4_cfg_shdr *)
13981 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
13982 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13983 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13984 if (shdr_status || shdr_add_status || rc) {
13985 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13986 "2505 EQ_DESTROY mailbox failed with "
13987 "status x%x add_status x%x, mbx status x%x\n",
13988 shdr_status, shdr_add_status, rc);
13992 /* Remove eq from any list */
13993 list_del_init(&eq->list);
13994 mempool_free(mbox, eq->phba->mbox_mem_pool);
13999 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
14000 * @cq: The queue structure associated with the queue to destroy.
14002 * This function destroys a queue, as detailed in @cq by sending an mailbox
14003 * command, specific to the type of queue, to the HBA.
14005 * The @cq struct is used to get the queue ID of the queue to destroy.
14007 * On success this function will return a zero. If the queue destroy mailbox
14008 * command fails this function will return -ENXIO.
14011 lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
14013 LPFC_MBOXQ_t *mbox;
14014 int rc, length, status = 0;
14015 uint32_t shdr_status, shdr_add_status;
14016 union lpfc_sli4_cfg_shdr *shdr;
14018 /* sanity check on queue memory */
14021 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
14024 length = (sizeof(struct lpfc_mbx_cq_destroy) -
14025 sizeof(struct lpfc_sli4_cfg_mhdr));
14026 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14027 LPFC_MBOX_OPCODE_CQ_DESTROY,
14028 length, LPFC_SLI4_MBX_EMBED);
14029 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
14031 mbox->vport = cq->phba->pport;
14032 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14033 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
14034 /* The IOCTL status is embedded in the mailbox subheader. */
14035 shdr = (union lpfc_sli4_cfg_shdr *)
14036 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
14037 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14038 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14039 if (shdr_status || shdr_add_status || rc) {
14040 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14041 "2506 CQ_DESTROY mailbox failed with "
14042 "status x%x add_status x%x, mbx status x%x\n",
14043 shdr_status, shdr_add_status, rc);
14046 /* Remove cq from any list */
14047 list_del_init(&cq->list);
14048 mempool_free(mbox, cq->phba->mbox_mem_pool);
14053 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
14054 * @qm: The queue structure associated with the queue to destroy.
14056 * This function destroys a queue, as detailed in @mq by sending an mailbox
14057 * command, specific to the type of queue, to the HBA.
14059 * The @mq struct is used to get the queue ID of the queue to destroy.
14061 * On success this function will return a zero. If the queue destroy mailbox
14062 * command fails this function will return -ENXIO.
14065 lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
14067 LPFC_MBOXQ_t *mbox;
14068 int rc, length, status = 0;
14069 uint32_t shdr_status, shdr_add_status;
14070 union lpfc_sli4_cfg_shdr *shdr;
14072 /* sanity check on queue memory */
14075 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
14078 length = (sizeof(struct lpfc_mbx_mq_destroy) -
14079 sizeof(struct lpfc_sli4_cfg_mhdr));
14080 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14081 LPFC_MBOX_OPCODE_MQ_DESTROY,
14082 length, LPFC_SLI4_MBX_EMBED);
14083 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
14085 mbox->vport = mq->phba->pport;
14086 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14087 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
14088 /* The IOCTL status is embedded in the mailbox subheader. */
14089 shdr = (union lpfc_sli4_cfg_shdr *)
14090 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
14091 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14092 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14093 if (shdr_status || shdr_add_status || rc) {
14094 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14095 "2507 MQ_DESTROY mailbox failed with "
14096 "status x%x add_status x%x, mbx status x%x\n",
14097 shdr_status, shdr_add_status, rc);
14100 /* Remove mq from any list */
14101 list_del_init(&mq->list);
14102 mempool_free(mbox, mq->phba->mbox_mem_pool);
14107 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
14108 * @wq: The queue structure associated with the queue to destroy.
14110 * This function destroys a queue, as detailed in @wq by sending an mailbox
14111 * command, specific to the type of queue, to the HBA.
14113 * The @wq struct is used to get the queue ID of the queue to destroy.
14115 * On success this function will return a zero. If the queue destroy mailbox
14116 * command fails this function will return -ENXIO.
14119 lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
14121 LPFC_MBOXQ_t *mbox;
14122 int rc, length, status = 0;
14123 uint32_t shdr_status, shdr_add_status;
14124 union lpfc_sli4_cfg_shdr *shdr;
14126 /* sanity check on queue memory */
14129 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
14132 length = (sizeof(struct lpfc_mbx_wq_destroy) -
14133 sizeof(struct lpfc_sli4_cfg_mhdr));
14134 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14135 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
14136 length, LPFC_SLI4_MBX_EMBED);
14137 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
14139 mbox->vport = wq->phba->pport;
14140 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14141 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
14142 shdr = (union lpfc_sli4_cfg_shdr *)
14143 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
14144 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14145 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14146 if (shdr_status || shdr_add_status || rc) {
14147 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14148 "2508 WQ_DESTROY mailbox failed with "
14149 "status x%x add_status x%x, mbx status x%x\n",
14150 shdr_status, shdr_add_status, rc);
14153 /* Remove wq from any list */
14154 list_del_init(&wq->list);
14155 mempool_free(mbox, wq->phba->mbox_mem_pool);
14160 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
14161 * @rq: The queue structure associated with the queue to destroy.
14163 * This function destroys a queue, as detailed in @rq by sending an mailbox
14164 * command, specific to the type of queue, to the HBA.
14166 * The @rq struct is used to get the queue ID of the queue to destroy.
14168 * On success this function will return a zero. If the queue destroy mailbox
14169 * command fails this function will return -ENXIO.
14172 lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
14173 struct lpfc_queue *drq)
14175 LPFC_MBOXQ_t *mbox;
14176 int rc, length, status = 0;
14177 uint32_t shdr_status, shdr_add_status;
14178 union lpfc_sli4_cfg_shdr *shdr;
14180 /* sanity check on queue memory */
14183 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
14186 length = (sizeof(struct lpfc_mbx_rq_destroy) -
14187 sizeof(struct lpfc_sli4_cfg_mhdr));
14188 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14189 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
14190 length, LPFC_SLI4_MBX_EMBED);
14191 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
14193 mbox->vport = hrq->phba->pport;
14194 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14195 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
14196 /* The IOCTL status is embedded in the mailbox subheader. */
14197 shdr = (union lpfc_sli4_cfg_shdr *)
14198 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
14199 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14200 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14201 if (shdr_status || shdr_add_status || rc) {
14202 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14203 "2509 RQ_DESTROY mailbox failed with "
14204 "status x%x add_status x%x, mbx status x%x\n",
14205 shdr_status, shdr_add_status, rc);
14206 if (rc != MBX_TIMEOUT)
14207 mempool_free(mbox, hrq->phba->mbox_mem_pool);
14210 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
14212 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
14213 shdr = (union lpfc_sli4_cfg_shdr *)
14214 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
14215 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14216 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14217 if (shdr_status || shdr_add_status || rc) {
14218 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14219 "2510 RQ_DESTROY mailbox failed with "
14220 "status x%x add_status x%x, mbx status x%x\n",
14221 shdr_status, shdr_add_status, rc);
14224 list_del_init(&hrq->list);
14225 list_del_init(&drq->list);
14226 mempool_free(mbox, hrq->phba->mbox_mem_pool);
14231 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
14232 * @phba: The virtual port for which this call being executed.
14233 * @pdma_phys_addr0: Physical address of the 1st SGL page.
14234 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
14235 * @xritag: the xritag that ties this io to the SGL pages.
14237 * This routine will post the sgl pages for the IO that has the xritag
14238 * that is in the iocbq structure. The xritag is assigned during iocbq
14239 * creation and persists for as long as the driver is loaded.
14240 * if the caller has fewer than 256 scatter gather segments to map then
14241 * pdma_phys_addr1 should be 0.
14242 * If the caller needs to map more than 256 scatter gather segment then
14243 * pdma_phys_addr1 should be a valid physical address.
14244 * physical address for SGLs must be 64 byte aligned.
14245 * If you are going to map 2 SGL's then the first one must have 256 entries
14246 * the second sgl can have between 1 and 256 entries.
14250 * -ENXIO, -ENOMEM - Failure
14253 lpfc_sli4_post_sgl(struct lpfc_hba *phba,
14254 dma_addr_t pdma_phys_addr0,
14255 dma_addr_t pdma_phys_addr1,
14258 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
14259 LPFC_MBOXQ_t *mbox;
14261 uint32_t shdr_status, shdr_add_status;
14263 union lpfc_sli4_cfg_shdr *shdr;
14265 if (xritag == NO_XRI) {
14266 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14267 "0364 Invalid param:\n");
14271 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14275 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14276 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
14277 sizeof(struct lpfc_mbx_post_sgl_pages) -
14278 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
14280 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
14281 &mbox->u.mqe.un.post_sgl_pages;
14282 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
14283 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
14285 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
14286 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
14287 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
14288 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
14290 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
14291 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
14292 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
14293 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
14294 if (!phba->sli4_hba.intr_enable)
14295 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14297 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
14298 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
14300 /* The IOCTL status is embedded in the mailbox subheader. */
14301 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
14302 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14303 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14304 if (rc != MBX_TIMEOUT)
14305 mempool_free(mbox, phba->mbox_mem_pool);
14306 if (shdr_status || shdr_add_status || rc) {
14307 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14308 "2511 POST_SGL mailbox failed with "
14309 "status x%x add_status x%x, mbx status x%x\n",
14310 shdr_status, shdr_add_status, rc);
14316 * lpfc_sli4_alloc_xri - Get an available rpi in the device's range
14317 * @phba: pointer to lpfc hba data structure.
14319 * This routine is invoked to post rpi header templates to the
14320 * HBA consistent with the SLI-4 interface spec. This routine
14321 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
14322 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
14325 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
14326 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
14329 lpfc_sli4_alloc_xri(struct lpfc_hba *phba)
14334 * Fetch the next logical xri. Because this index is logical,
14335 * the driver starts at 0 each time.
14337 spin_lock_irq(&phba->hbalock);
14338 xri = find_next_zero_bit(phba->sli4_hba.xri_bmask,
14339 phba->sli4_hba.max_cfg_param.max_xri, 0);
14340 if (xri >= phba->sli4_hba.max_cfg_param.max_xri) {
14341 spin_unlock_irq(&phba->hbalock);
14344 set_bit(xri, phba->sli4_hba.xri_bmask);
14345 phba->sli4_hba.max_cfg_param.xri_used++;
14347 spin_unlock_irq(&phba->hbalock);
14352 * lpfc_sli4_free_xri - Release an xri for reuse.
14353 * @phba: pointer to lpfc hba data structure.
14355 * This routine is invoked to release an xri to the pool of
14356 * available rpis maintained by the driver.
14359 __lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
14361 if (test_and_clear_bit(xri, phba->sli4_hba.xri_bmask)) {
14362 phba->sli4_hba.max_cfg_param.xri_used--;
14367 * lpfc_sli4_free_xri - Release an xri for reuse.
14368 * @phba: pointer to lpfc hba data structure.
14370 * This routine is invoked to release an xri to the pool of
14371 * available rpis maintained by the driver.
14374 lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
14376 spin_lock_irq(&phba->hbalock);
14377 __lpfc_sli4_free_xri(phba, xri);
14378 spin_unlock_irq(&phba->hbalock);
14382 * lpfc_sli4_next_xritag - Get an xritag for the io
14383 * @phba: Pointer to HBA context object.
14385 * This function gets an xritag for the iocb. If there is no unused xritag
14386 * it will return 0xffff.
14387 * The function returns the allocated xritag if successful, else returns zero.
14388 * Zero is not a valid xritag.
14389 * The caller is not required to hold any lock.
14392 lpfc_sli4_next_xritag(struct lpfc_hba *phba)
14394 uint16_t xri_index;
14396 xri_index = lpfc_sli4_alloc_xri(phba);
14397 if (xri_index == NO_XRI)
14398 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
14399 "2004 Failed to allocate XRI.last XRITAG is %d"
14400 " Max XRI is %d, Used XRI is %d\n",
14402 phba->sli4_hba.max_cfg_param.max_xri,
14403 phba->sli4_hba.max_cfg_param.xri_used);
14408 * lpfc_sli4_post_els_sgl_list - post a block of ELS sgls to the port.
14409 * @phba: pointer to lpfc hba data structure.
14410 * @post_sgl_list: pointer to els sgl entry list.
14411 * @count: number of els sgl entries on the list.
14413 * This routine is invoked to post a block of driver's sgl pages to the
14414 * HBA using non-embedded mailbox command. No Lock is held. This routine
14415 * is only called when the driver is loading and after all IO has been
14419 lpfc_sli4_post_els_sgl_list(struct lpfc_hba *phba,
14420 struct list_head *post_sgl_list,
14423 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
14424 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
14425 struct sgl_page_pairs *sgl_pg_pairs;
14427 LPFC_MBOXQ_t *mbox;
14428 uint32_t reqlen, alloclen, pg_pairs;
14430 uint16_t xritag_start = 0;
14432 uint32_t shdr_status, shdr_add_status;
14433 union lpfc_sli4_cfg_shdr *shdr;
14435 reqlen = phba->sli4_hba.els_xri_cnt * sizeof(struct sgl_page_pairs) +
14436 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
14437 if (reqlen > SLI4_PAGE_SIZE) {
14438 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
14439 "2559 Block sgl registration required DMA "
14440 "size (%d) great than a page\n", reqlen);
14443 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14447 /* Allocate DMA memory and set up the non-embedded mailbox command */
14448 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14449 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
14450 LPFC_SLI4_MBX_NEMBED);
14452 if (alloclen < reqlen) {
14453 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14454 "0285 Allocated DMA memory size (%d) is "
14455 "less than the requested DMA memory "
14456 "size (%d)\n", alloclen, reqlen);
14457 lpfc_sli4_mbox_cmd_free(phba, mbox);
14460 /* Set up the SGL pages in the non-embedded DMA pages */
14461 viraddr = mbox->sge_array->addr[0];
14462 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
14463 sgl_pg_pairs = &sgl->sgl_pg_pairs;
14466 list_for_each_entry_safe(sglq_entry, sglq_next, post_sgl_list, list) {
14467 /* Set up the sge entry */
14468 sgl_pg_pairs->sgl_pg0_addr_lo =
14469 cpu_to_le32(putPaddrLow(sglq_entry->phys));
14470 sgl_pg_pairs->sgl_pg0_addr_hi =
14471 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
14472 sgl_pg_pairs->sgl_pg1_addr_lo =
14473 cpu_to_le32(putPaddrLow(0));
14474 sgl_pg_pairs->sgl_pg1_addr_hi =
14475 cpu_to_le32(putPaddrHigh(0));
14477 /* Keep the first xritag on the list */
14479 xritag_start = sglq_entry->sli4_xritag;
14484 /* Complete initialization and perform endian conversion. */
14485 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
14486 bf_set(lpfc_post_sgl_pages_xricnt, sgl, phba->sli4_hba.els_xri_cnt);
14487 sgl->word0 = cpu_to_le32(sgl->word0);
14488 if (!phba->sli4_hba.intr_enable)
14489 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14491 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
14492 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
14494 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
14495 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14496 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14497 if (rc != MBX_TIMEOUT)
14498 lpfc_sli4_mbox_cmd_free(phba, mbox);
14499 if (shdr_status || shdr_add_status || rc) {
14500 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14501 "2513 POST_SGL_BLOCK mailbox command failed "
14502 "status x%x add_status x%x mbx status x%x\n",
14503 shdr_status, shdr_add_status, rc);
14510 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
14511 * @phba: pointer to lpfc hba data structure.
14512 * @sblist: pointer to scsi buffer list.
14513 * @count: number of scsi buffers on the list.
14515 * This routine is invoked to post a block of @count scsi sgl pages from a
14516 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
14521 lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba,
14522 struct list_head *sblist,
14525 struct lpfc_scsi_buf *psb;
14526 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
14527 struct sgl_page_pairs *sgl_pg_pairs;
14529 LPFC_MBOXQ_t *mbox;
14530 uint32_t reqlen, alloclen, pg_pairs;
14532 uint16_t xritag_start = 0;
14534 uint32_t shdr_status, shdr_add_status;
14535 dma_addr_t pdma_phys_bpl1;
14536 union lpfc_sli4_cfg_shdr *shdr;
14538 /* Calculate the requested length of the dma memory */
14539 reqlen = count * sizeof(struct sgl_page_pairs) +
14540 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
14541 if (reqlen > SLI4_PAGE_SIZE) {
14542 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
14543 "0217 Block sgl registration required DMA "
14544 "size (%d) great than a page\n", reqlen);
14547 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14549 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14550 "0283 Failed to allocate mbox cmd memory\n");
14554 /* Allocate DMA memory and set up the non-embedded mailbox command */
14555 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14556 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
14557 LPFC_SLI4_MBX_NEMBED);
14559 if (alloclen < reqlen) {
14560 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14561 "2561 Allocated DMA memory size (%d) is "
14562 "less than the requested DMA memory "
14563 "size (%d)\n", alloclen, reqlen);
14564 lpfc_sli4_mbox_cmd_free(phba, mbox);
14568 /* Get the first SGE entry from the non-embedded DMA memory */
14569 viraddr = mbox->sge_array->addr[0];
14571 /* Set up the SGL pages in the non-embedded DMA pages */
14572 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
14573 sgl_pg_pairs = &sgl->sgl_pg_pairs;
14576 list_for_each_entry(psb, sblist, list) {
14577 /* Set up the sge entry */
14578 sgl_pg_pairs->sgl_pg0_addr_lo =
14579 cpu_to_le32(putPaddrLow(psb->dma_phys_bpl));
14580 sgl_pg_pairs->sgl_pg0_addr_hi =
14581 cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl));
14582 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
14583 pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE;
14585 pdma_phys_bpl1 = 0;
14586 sgl_pg_pairs->sgl_pg1_addr_lo =
14587 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
14588 sgl_pg_pairs->sgl_pg1_addr_hi =
14589 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
14590 /* Keep the first xritag on the list */
14592 xritag_start = psb->cur_iocbq.sli4_xritag;
14596 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
14597 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
14598 /* Perform endian conversion if necessary */
14599 sgl->word0 = cpu_to_le32(sgl->word0);
14601 if (!phba->sli4_hba.intr_enable)
14602 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14604 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
14605 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
14607 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
14608 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14609 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14610 if (rc != MBX_TIMEOUT)
14611 lpfc_sli4_mbox_cmd_free(phba, mbox);
14612 if (shdr_status || shdr_add_status || rc) {
14613 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14614 "2564 POST_SGL_BLOCK mailbox command failed "
14615 "status x%x add_status x%x mbx status x%x\n",
14616 shdr_status, shdr_add_status, rc);
14623 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
14624 * @phba: pointer to lpfc_hba struct that the frame was received on
14625 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14627 * This function checks the fields in the @fc_hdr to see if the FC frame is a
14628 * valid type of frame that the LPFC driver will handle. This function will
14629 * return a zero if the frame is a valid frame or a non zero value when the
14630 * frame does not pass the check.
14633 lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
14635 /* make rctl_names static to save stack space */
14636 static char *rctl_names[] = FC_RCTL_NAMES_INIT;
14637 char *type_names[] = FC_TYPE_NAMES_INIT;
14638 struct fc_vft_header *fc_vft_hdr;
14639 uint32_t *header = (uint32_t *) fc_hdr;
14641 switch (fc_hdr->fh_r_ctl) {
14642 case FC_RCTL_DD_UNCAT: /* uncategorized information */
14643 case FC_RCTL_DD_SOL_DATA: /* solicited data */
14644 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
14645 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
14646 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
14647 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
14648 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
14649 case FC_RCTL_DD_CMD_STATUS: /* command status */
14650 case FC_RCTL_ELS_REQ: /* extended link services request */
14651 case FC_RCTL_ELS_REP: /* extended link services reply */
14652 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
14653 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
14654 case FC_RCTL_BA_NOP: /* basic link service NOP */
14655 case FC_RCTL_BA_ABTS: /* basic link service abort */
14656 case FC_RCTL_BA_RMC: /* remove connection */
14657 case FC_RCTL_BA_ACC: /* basic accept */
14658 case FC_RCTL_BA_RJT: /* basic reject */
14659 case FC_RCTL_BA_PRMT:
14660 case FC_RCTL_ACK_1: /* acknowledge_1 */
14661 case FC_RCTL_ACK_0: /* acknowledge_0 */
14662 case FC_RCTL_P_RJT: /* port reject */
14663 case FC_RCTL_F_RJT: /* fabric reject */
14664 case FC_RCTL_P_BSY: /* port busy */
14665 case FC_RCTL_F_BSY: /* fabric busy to data frame */
14666 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
14667 case FC_RCTL_LCR: /* link credit reset */
14668 case FC_RCTL_END: /* end */
14670 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
14671 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
14672 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
14673 return lpfc_fc_frame_check(phba, fc_hdr);
14677 switch (fc_hdr->fh_type) {
14689 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
14690 "2538 Received frame rctl:%s (x%x), type:%s (x%x), "
14691 "frame Data:%08x %08x %08x %08x %08x %08x %08x\n",
14692 rctl_names[fc_hdr->fh_r_ctl], fc_hdr->fh_r_ctl,
14693 type_names[fc_hdr->fh_type], fc_hdr->fh_type,
14694 be32_to_cpu(header[0]), be32_to_cpu(header[1]),
14695 be32_to_cpu(header[2]), be32_to_cpu(header[3]),
14696 be32_to_cpu(header[4]), be32_to_cpu(header[5]),
14697 be32_to_cpu(header[6]));
14700 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
14701 "2539 Dropped frame rctl:%s type:%s\n",
14702 rctl_names[fc_hdr->fh_r_ctl],
14703 type_names[fc_hdr->fh_type]);
14708 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
14709 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14711 * This function processes the FC header to retrieve the VFI from the VF
14712 * header, if one exists. This function will return the VFI if one exists
14713 * or 0 if no VSAN Header exists.
14716 lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
14718 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
14720 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
14722 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
14726 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
14727 * @phba: Pointer to the HBA structure to search for the vport on
14728 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14729 * @fcfi: The FC Fabric ID that the frame came from
14731 * This function searches the @phba for a vport that matches the content of the
14732 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
14733 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
14734 * returns the matching vport pointer or NULL if unable to match frame to a
14737 static struct lpfc_vport *
14738 lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
14741 struct lpfc_vport **vports;
14742 struct lpfc_vport *vport = NULL;
14744 uint32_t did = (fc_hdr->fh_d_id[0] << 16 |
14745 fc_hdr->fh_d_id[1] << 8 |
14746 fc_hdr->fh_d_id[2]);
14748 if (did == Fabric_DID)
14749 return phba->pport;
14750 if ((phba->pport->fc_flag & FC_PT2PT) &&
14751 !(phba->link_state == LPFC_HBA_READY))
14752 return phba->pport;
14754 vports = lpfc_create_vport_work_array(phba);
14755 if (vports != NULL)
14756 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
14757 if (phba->fcf.fcfi == fcfi &&
14758 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
14759 vports[i]->fc_myDID == did) {
14764 lpfc_destroy_vport_work_array(phba, vports);
14769 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
14770 * @vport: The vport to work on.
14772 * This function updates the receive sequence time stamp for this vport. The
14773 * receive sequence time stamp indicates the time that the last frame of the
14774 * the sequence that has been idle for the longest amount of time was received.
14775 * the driver uses this time stamp to indicate if any received sequences have
14779 lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
14781 struct lpfc_dmabuf *h_buf;
14782 struct hbq_dmabuf *dmabuf = NULL;
14784 /* get the oldest sequence on the rcv list */
14785 h_buf = list_get_first(&vport->rcv_buffer_list,
14786 struct lpfc_dmabuf, list);
14789 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14790 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
14794 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
14795 * @vport: The vport that the received sequences were sent to.
14797 * This function cleans up all outstanding received sequences. This is called
14798 * by the driver when a link event or user action invalidates all the received
14802 lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
14804 struct lpfc_dmabuf *h_buf, *hnext;
14805 struct lpfc_dmabuf *d_buf, *dnext;
14806 struct hbq_dmabuf *dmabuf = NULL;
14808 /* start with the oldest sequence on the rcv list */
14809 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
14810 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14811 list_del_init(&dmabuf->hbuf.list);
14812 list_for_each_entry_safe(d_buf, dnext,
14813 &dmabuf->dbuf.list, list) {
14814 list_del_init(&d_buf->list);
14815 lpfc_in_buf_free(vport->phba, d_buf);
14817 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
14822 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
14823 * @vport: The vport that the received sequences were sent to.
14825 * This function determines whether any received sequences have timed out by
14826 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
14827 * indicates that there is at least one timed out sequence this routine will
14828 * go through the received sequences one at a time from most inactive to most
14829 * active to determine which ones need to be cleaned up. Once it has determined
14830 * that a sequence needs to be cleaned up it will simply free up the resources
14831 * without sending an abort.
14834 lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
14836 struct lpfc_dmabuf *h_buf, *hnext;
14837 struct lpfc_dmabuf *d_buf, *dnext;
14838 struct hbq_dmabuf *dmabuf = NULL;
14839 unsigned long timeout;
14840 int abort_count = 0;
14842 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
14843 vport->rcv_buffer_time_stamp);
14844 if (list_empty(&vport->rcv_buffer_list) ||
14845 time_before(jiffies, timeout))
14847 /* start with the oldest sequence on the rcv list */
14848 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
14849 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14850 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
14851 dmabuf->time_stamp);
14852 if (time_before(jiffies, timeout))
14855 list_del_init(&dmabuf->hbuf.list);
14856 list_for_each_entry_safe(d_buf, dnext,
14857 &dmabuf->dbuf.list, list) {
14858 list_del_init(&d_buf->list);
14859 lpfc_in_buf_free(vport->phba, d_buf);
14861 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
14864 lpfc_update_rcv_time_stamp(vport);
14868 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
14869 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
14871 * This function searches through the existing incomplete sequences that have
14872 * been sent to this @vport. If the frame matches one of the incomplete
14873 * sequences then the dbuf in the @dmabuf is added to the list of frames that
14874 * make up that sequence. If no sequence is found that matches this frame then
14875 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
14876 * This function returns a pointer to the first dmabuf in the sequence list that
14877 * the frame was linked to.
14879 static struct hbq_dmabuf *
14880 lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
14882 struct fc_frame_header *new_hdr;
14883 struct fc_frame_header *temp_hdr;
14884 struct lpfc_dmabuf *d_buf;
14885 struct lpfc_dmabuf *h_buf;
14886 struct hbq_dmabuf *seq_dmabuf = NULL;
14887 struct hbq_dmabuf *temp_dmabuf = NULL;
14890 INIT_LIST_HEAD(&dmabuf->dbuf.list);
14891 dmabuf->time_stamp = jiffies;
14892 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14894 /* Use the hdr_buf to find the sequence that this frame belongs to */
14895 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
14896 temp_hdr = (struct fc_frame_header *)h_buf->virt;
14897 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
14898 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
14899 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
14901 /* found a pending sequence that matches this frame */
14902 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14907 * This indicates first frame received for this sequence.
14908 * Queue the buffer on the vport's rcv_buffer_list.
14910 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
14911 lpfc_update_rcv_time_stamp(vport);
14914 temp_hdr = seq_dmabuf->hbuf.virt;
14915 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
14916 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
14917 list_del_init(&seq_dmabuf->hbuf.list);
14918 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
14919 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
14920 lpfc_update_rcv_time_stamp(vport);
14923 /* move this sequence to the tail to indicate a young sequence */
14924 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
14925 seq_dmabuf->time_stamp = jiffies;
14926 lpfc_update_rcv_time_stamp(vport);
14927 if (list_empty(&seq_dmabuf->dbuf.list)) {
14928 temp_hdr = dmabuf->hbuf.virt;
14929 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
14932 /* find the correct place in the sequence to insert this frame */
14933 d_buf = list_entry(seq_dmabuf->dbuf.list.prev, typeof(*d_buf), list);
14935 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14936 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
14938 * If the frame's sequence count is greater than the frame on
14939 * the list then insert the frame right after this frame
14941 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
14942 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
14943 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
14948 if (&d_buf->list == &seq_dmabuf->dbuf.list)
14950 d_buf = list_entry(d_buf->list.prev, typeof(*d_buf), list);
14959 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
14960 * @vport: pointer to a vitural port
14961 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14963 * This function tries to abort from the partially assembed sequence, described
14964 * by the information from basic abbort @dmabuf. It checks to see whether such
14965 * partially assembled sequence held by the driver. If so, it shall free up all
14966 * the frames from the partially assembled sequence.
14969 * true -- if there is matching partially assembled sequence present and all
14970 * the frames freed with the sequence;
14971 * false -- if there is no matching partially assembled sequence present so
14972 * nothing got aborted in the lower layer driver
14975 lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
14976 struct hbq_dmabuf *dmabuf)
14978 struct fc_frame_header *new_hdr;
14979 struct fc_frame_header *temp_hdr;
14980 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
14981 struct hbq_dmabuf *seq_dmabuf = NULL;
14983 /* Use the hdr_buf to find the sequence that matches this frame */
14984 INIT_LIST_HEAD(&dmabuf->dbuf.list);
14985 INIT_LIST_HEAD(&dmabuf->hbuf.list);
14986 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14987 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
14988 temp_hdr = (struct fc_frame_header *)h_buf->virt;
14989 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
14990 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
14991 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
14993 /* found a pending sequence that matches this frame */
14994 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14998 /* Free up all the frames from the partially assembled sequence */
15000 list_for_each_entry_safe(d_buf, n_buf,
15001 &seq_dmabuf->dbuf.list, list) {
15002 list_del_init(&d_buf->list);
15003 lpfc_in_buf_free(vport->phba, d_buf);
15011 * lpfc_sli4_abort_ulp_seq - Abort assembled unsol sequence from ulp
15012 * @vport: pointer to a vitural port
15013 * @dmabuf: pointer to a dmabuf that describes the FC sequence
15015 * This function tries to abort from the assembed sequence from upper level
15016 * protocol, described by the information from basic abbort @dmabuf. It
15017 * checks to see whether such pending context exists at upper level protocol.
15018 * If so, it shall clean up the pending context.
15021 * true -- if there is matching pending context of the sequence cleaned
15023 * false -- if there is no matching pending context of the sequence present
15027 lpfc_sli4_abort_ulp_seq(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
15029 struct lpfc_hba *phba = vport->phba;
15032 /* Accepting abort at ulp with SLI4 only */
15033 if (phba->sli_rev < LPFC_SLI_REV4)
15036 /* Register all caring upper level protocols to attend abort */
15037 handled = lpfc_ct_handle_unsol_abort(phba, dmabuf);
15045 * lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler
15046 * @phba: Pointer to HBA context object.
15047 * @cmd_iocbq: pointer to the command iocbq structure.
15048 * @rsp_iocbq: pointer to the response iocbq structure.
15050 * This function handles the sequence abort response iocb command complete
15051 * event. It properly releases the memory allocated to the sequence abort
15055 lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba *phba,
15056 struct lpfc_iocbq *cmd_iocbq,
15057 struct lpfc_iocbq *rsp_iocbq)
15059 struct lpfc_nodelist *ndlp;
15062 ndlp = (struct lpfc_nodelist *)cmd_iocbq->context1;
15063 lpfc_nlp_put(ndlp);
15064 lpfc_nlp_not_used(ndlp);
15065 lpfc_sli_release_iocbq(phba, cmd_iocbq);
15068 /* Failure means BLS ABORT RSP did not get delivered to remote node*/
15069 if (rsp_iocbq && rsp_iocbq->iocb.ulpStatus)
15070 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15071 "3154 BLS ABORT RSP failed, data: x%x/x%x\n",
15072 rsp_iocbq->iocb.ulpStatus,
15073 rsp_iocbq->iocb.un.ulpWord[4]);
15077 * lpfc_sli4_xri_inrange - check xri is in range of xris owned by driver.
15078 * @phba: Pointer to HBA context object.
15079 * @xri: xri id in transaction.
15081 * This function validates the xri maps to the known range of XRIs allocated an
15082 * used by the driver.
15085 lpfc_sli4_xri_inrange(struct lpfc_hba *phba,
15090 for (i = 0; i < phba->sli4_hba.max_cfg_param.max_xri; i++) {
15091 if (xri == phba->sli4_hba.xri_ids[i])
15098 * lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort
15099 * @phba: Pointer to HBA context object.
15100 * @fc_hdr: pointer to a FC frame header.
15102 * This function sends a basic response to a previous unsol sequence abort
15103 * event after aborting the sequence handling.
15106 lpfc_sli4_seq_abort_rsp(struct lpfc_vport *vport,
15107 struct fc_frame_header *fc_hdr, bool aborted)
15109 struct lpfc_hba *phba = vport->phba;
15110 struct lpfc_iocbq *ctiocb = NULL;
15111 struct lpfc_nodelist *ndlp;
15112 uint16_t oxid, rxid, xri, lxri;
15113 uint32_t sid, fctl;
15117 if (!lpfc_is_link_up(phba))
15120 sid = sli4_sid_from_fc_hdr(fc_hdr);
15121 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
15122 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
15124 ndlp = lpfc_findnode_did(vport, sid);
15126 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
15128 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
15129 "1268 Failed to allocate ndlp for "
15130 "oxid:x%x SID:x%x\n", oxid, sid);
15133 lpfc_nlp_init(vport, ndlp, sid);
15134 /* Put ndlp onto pport node list */
15135 lpfc_enqueue_node(vport, ndlp);
15136 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
15137 /* re-setup ndlp without removing from node list */
15138 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
15140 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
15141 "3275 Failed to active ndlp found "
15142 "for oxid:x%x SID:x%x\n", oxid, sid);
15147 /* Allocate buffer for rsp iocb */
15148 ctiocb = lpfc_sli_get_iocbq(phba);
15152 /* Extract the F_CTL field from FC_HDR */
15153 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
15155 icmd = &ctiocb->iocb;
15156 icmd->un.xseq64.bdl.bdeSize = 0;
15157 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
15158 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
15159 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
15160 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
15162 /* Fill in the rest of iocb fields */
15163 icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
15164 icmd->ulpBdeCount = 0;
15166 icmd->ulpClass = CLASS3;
15167 icmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
15168 ctiocb->context1 = lpfc_nlp_get(ndlp);
15170 ctiocb->iocb_cmpl = NULL;
15171 ctiocb->vport = phba->pport;
15172 ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_rsp_cmpl;
15173 ctiocb->sli4_lxritag = NO_XRI;
15174 ctiocb->sli4_xritag = NO_XRI;
15176 if (fctl & FC_FC_EX_CTX)
15177 /* Exchange responder sent the abort so we
15183 lxri = lpfc_sli4_xri_inrange(phba, xri);
15184 if (lxri != NO_XRI)
15185 lpfc_set_rrq_active(phba, ndlp, lxri,
15186 (xri == oxid) ? rxid : oxid, 0);
15187 /* For BA_ABTS from exchange responder, if the logical xri with
15188 * the oxid maps to the FCP XRI range, the port no longer has
15189 * that exchange context, send a BLS_RJT. Override the IOCB for
15192 if ((fctl & FC_FC_EX_CTX) &&
15193 (lxri > lpfc_sli4_get_els_iocb_cnt(phba))) {
15194 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
15195 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
15196 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
15197 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
15200 /* If BA_ABTS failed to abort a partially assembled receive sequence,
15201 * the driver no longer has that exchange, send a BLS_RJT. Override
15202 * the IOCB for a BA_RJT.
15204 if (aborted == false) {
15205 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
15206 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
15207 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
15208 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
15211 if (fctl & FC_FC_EX_CTX) {
15212 /* ABTS sent by responder to CT exchange, construction
15213 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
15214 * field and RX_ID from ABTS for RX_ID field.
15216 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_RSP);
15218 /* ABTS sent by initiator to CT exchange, construction
15219 * of BA_ACC will need to allocate a new XRI as for the
15222 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_INT);
15224 bf_set(lpfc_abts_rxid, &icmd->un.bls_rsp, rxid);
15225 bf_set(lpfc_abts_oxid, &icmd->un.bls_rsp, oxid);
15227 /* Xmit CT abts response on exchange <xid> */
15228 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
15229 "1200 Send BLS cmd x%x on oxid x%x Data: x%x\n",
15230 icmd->un.xseq64.w5.hcsw.Rctl, oxid, phba->link_state);
15232 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
15233 if (rc == IOCB_ERROR) {
15234 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
15235 "2925 Failed to issue CT ABTS RSP x%x on "
15236 "xri x%x, Data x%x\n",
15237 icmd->un.xseq64.w5.hcsw.Rctl, oxid,
15239 lpfc_nlp_put(ndlp);
15240 ctiocb->context1 = NULL;
15241 lpfc_sli_release_iocbq(phba, ctiocb);
15246 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
15247 * @vport: Pointer to the vport on which this sequence was received
15248 * @dmabuf: pointer to a dmabuf that describes the FC sequence
15250 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
15251 * receive sequence is only partially assembed by the driver, it shall abort
15252 * the partially assembled frames for the sequence. Otherwise, if the
15253 * unsolicited receive sequence has been completely assembled and passed to
15254 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
15255 * unsolicited sequence has been aborted. After that, it will issue a basic
15256 * accept to accept the abort.
15259 lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
15260 struct hbq_dmabuf *dmabuf)
15262 struct lpfc_hba *phba = vport->phba;
15263 struct fc_frame_header fc_hdr;
15267 /* Make a copy of fc_hdr before the dmabuf being released */
15268 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
15269 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
15271 if (fctl & FC_FC_EX_CTX) {
15272 /* ABTS by responder to exchange, no cleanup needed */
15275 /* ABTS by initiator to exchange, need to do cleanup */
15276 aborted = lpfc_sli4_abort_partial_seq(vport, dmabuf);
15277 if (aborted == false)
15278 aborted = lpfc_sli4_abort_ulp_seq(vport, dmabuf);
15280 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15282 /* Respond with BA_ACC or BA_RJT accordingly */
15283 lpfc_sli4_seq_abort_rsp(vport, &fc_hdr, aborted);
15287 * lpfc_seq_complete - Indicates if a sequence is complete
15288 * @dmabuf: pointer to a dmabuf that describes the FC sequence
15290 * This function checks the sequence, starting with the frame described by
15291 * @dmabuf, to see if all the frames associated with this sequence are present.
15292 * the frames associated with this sequence are linked to the @dmabuf using the
15293 * dbuf list. This function looks for two major things. 1) That the first frame
15294 * has a sequence count of zero. 2) There is a frame with last frame of sequence
15295 * set. 3) That there are no holes in the sequence count. The function will
15296 * return 1 when the sequence is complete, otherwise it will return 0.
15299 lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
15301 struct fc_frame_header *hdr;
15302 struct lpfc_dmabuf *d_buf;
15303 struct hbq_dmabuf *seq_dmabuf;
15307 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
15308 /* make sure first fame of sequence has a sequence count of zero */
15309 if (hdr->fh_seq_cnt != seq_count)
15311 fctl = (hdr->fh_f_ctl[0] << 16 |
15312 hdr->fh_f_ctl[1] << 8 |
15314 /* If last frame of sequence we can return success. */
15315 if (fctl & FC_FC_END_SEQ)
15317 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
15318 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
15319 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
15320 /* If there is a hole in the sequence count then fail. */
15321 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
15323 fctl = (hdr->fh_f_ctl[0] << 16 |
15324 hdr->fh_f_ctl[1] << 8 |
15326 /* If last frame of sequence we can return success. */
15327 if (fctl & FC_FC_END_SEQ)
15334 * lpfc_prep_seq - Prep sequence for ULP processing
15335 * @vport: Pointer to the vport on which this sequence was received
15336 * @dmabuf: pointer to a dmabuf that describes the FC sequence
15338 * This function takes a sequence, described by a list of frames, and creates
15339 * a list of iocbq structures to describe the sequence. This iocbq list will be
15340 * used to issue to the generic unsolicited sequence handler. This routine
15341 * returns a pointer to the first iocbq in the list. If the function is unable
15342 * to allocate an iocbq then it throw out the received frames that were not
15343 * able to be described and return a pointer to the first iocbq. If unable to
15344 * allocate any iocbqs (including the first) this function will return NULL.
15346 static struct lpfc_iocbq *
15347 lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
15349 struct hbq_dmabuf *hbq_buf;
15350 struct lpfc_dmabuf *d_buf, *n_buf;
15351 struct lpfc_iocbq *first_iocbq, *iocbq;
15352 struct fc_frame_header *fc_hdr;
15354 uint32_t len, tot_len;
15355 struct ulp_bde64 *pbde;
15357 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
15358 /* remove from receive buffer list */
15359 list_del_init(&seq_dmabuf->hbuf.list);
15360 lpfc_update_rcv_time_stamp(vport);
15361 /* get the Remote Port's SID */
15362 sid = sli4_sid_from_fc_hdr(fc_hdr);
15364 /* Get an iocbq struct to fill in. */
15365 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
15367 /* Initialize the first IOCB. */
15368 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
15369 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
15371 /* Check FC Header to see what TYPE of frame we are rcv'ing */
15372 if (sli4_type_from_fc_hdr(fc_hdr) == FC_TYPE_ELS) {
15373 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_ELS64_CX;
15374 first_iocbq->iocb.un.rcvels.parmRo =
15375 sli4_did_from_fc_hdr(fc_hdr);
15376 first_iocbq->iocb.ulpPU = PARM_NPIV_DID;
15378 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
15379 first_iocbq->iocb.ulpContext = NO_XRI;
15380 first_iocbq->iocb.unsli3.rcvsli3.ox_id =
15381 be16_to_cpu(fc_hdr->fh_ox_id);
15382 /* iocbq is prepped for internal consumption. Physical vpi. */
15383 first_iocbq->iocb.unsli3.rcvsli3.vpi =
15384 vport->phba->vpi_ids[vport->vpi];
15385 /* put the first buffer into the first IOCBq */
15386 tot_len = bf_get(lpfc_rcqe_length,
15387 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
15389 first_iocbq->context2 = &seq_dmabuf->dbuf;
15390 first_iocbq->context3 = NULL;
15391 first_iocbq->iocb.ulpBdeCount = 1;
15392 if (tot_len > LPFC_DATA_BUF_SIZE)
15393 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
15394 LPFC_DATA_BUF_SIZE;
15396 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize = tot_len;
15398 first_iocbq->iocb.un.rcvels.remoteID = sid;
15400 first_iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
15402 iocbq = first_iocbq;
15404 * Each IOCBq can have two Buffers assigned, so go through the list
15405 * of buffers for this sequence and save two buffers in each IOCBq
15407 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
15409 lpfc_in_buf_free(vport->phba, d_buf);
15412 if (!iocbq->context3) {
15413 iocbq->context3 = d_buf;
15414 iocbq->iocb.ulpBdeCount++;
15415 /* We need to get the size out of the right CQE */
15416 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
15417 len = bf_get(lpfc_rcqe_length,
15418 &hbq_buf->cq_event.cqe.rcqe_cmpl);
15419 pbde = (struct ulp_bde64 *)
15420 &iocbq->iocb.unsli3.sli3Words[4];
15421 if (len > LPFC_DATA_BUF_SIZE)
15422 pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
15424 pbde->tus.f.bdeSize = len;
15426 iocbq->iocb.unsli3.rcvsli3.acc_len += len;
15429 iocbq = lpfc_sli_get_iocbq(vport->phba);
15432 first_iocbq->iocb.ulpStatus =
15433 IOSTAT_FCP_RSP_ERROR;
15434 first_iocbq->iocb.un.ulpWord[4] =
15435 IOERR_NO_RESOURCES;
15437 lpfc_in_buf_free(vport->phba, d_buf);
15440 /* We need to get the size out of the right CQE */
15441 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
15442 len = bf_get(lpfc_rcqe_length,
15443 &hbq_buf->cq_event.cqe.rcqe_cmpl);
15444 iocbq->context2 = d_buf;
15445 iocbq->context3 = NULL;
15446 iocbq->iocb.ulpBdeCount = 1;
15447 if (len > LPFC_DATA_BUF_SIZE)
15448 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
15449 LPFC_DATA_BUF_SIZE;
15451 iocbq->iocb.un.cont64[0].tus.f.bdeSize = len;
15454 iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
15456 iocbq->iocb.un.rcvels.remoteID = sid;
15457 list_add_tail(&iocbq->list, &first_iocbq->list);
15460 return first_iocbq;
15464 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
15465 struct hbq_dmabuf *seq_dmabuf)
15467 struct fc_frame_header *fc_hdr;
15468 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
15469 struct lpfc_hba *phba = vport->phba;
15471 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
15472 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
15474 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15475 "2707 Ring %d handler: Failed to allocate "
15476 "iocb Rctl x%x Type x%x received\n",
15478 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
15481 if (!lpfc_complete_unsol_iocb(phba,
15482 &phba->sli.ring[LPFC_ELS_RING],
15483 iocbq, fc_hdr->fh_r_ctl,
15485 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15486 "2540 Ring %d handler: unexpected Rctl "
15487 "x%x Type x%x received\n",
15489 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
15491 /* Free iocb created in lpfc_prep_seq */
15492 list_for_each_entry_safe(curr_iocb, next_iocb,
15493 &iocbq->list, list) {
15494 list_del_init(&curr_iocb->list);
15495 lpfc_sli_release_iocbq(phba, curr_iocb);
15497 lpfc_sli_release_iocbq(phba, iocbq);
15501 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
15502 * @phba: Pointer to HBA context object.
15504 * This function is called with no lock held. This function processes all
15505 * the received buffers and gives it to upper layers when a received buffer
15506 * indicates that it is the final frame in the sequence. The interrupt
15507 * service routine processes received buffers at interrupt contexts and adds
15508 * received dma buffers to the rb_pend_list queue and signals the worker thread.
15509 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
15510 * appropriate receive function when the final frame in a sequence is received.
15513 lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
15514 struct hbq_dmabuf *dmabuf)
15516 struct hbq_dmabuf *seq_dmabuf;
15517 struct fc_frame_header *fc_hdr;
15518 struct lpfc_vport *vport;
15522 /* Process each received buffer */
15523 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
15524 /* check to see if this a valid type of frame */
15525 if (lpfc_fc_frame_check(phba, fc_hdr)) {
15526 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15529 if ((bf_get(lpfc_cqe_code,
15530 &dmabuf->cq_event.cqe.rcqe_cmpl) == CQE_CODE_RECEIVE_V1))
15531 fcfi = bf_get(lpfc_rcqe_fcf_id_v1,
15532 &dmabuf->cq_event.cqe.rcqe_cmpl);
15534 fcfi = bf_get(lpfc_rcqe_fcf_id,
15535 &dmabuf->cq_event.cqe.rcqe_cmpl);
15537 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi);
15539 /* throw out the frame */
15540 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15544 /* d_id this frame is directed to */
15545 did = sli4_did_from_fc_hdr(fc_hdr);
15547 /* vport is registered unless we rcv a FLOGI directed to Fabric_DID */
15548 if (!(vport->vpi_state & LPFC_VPI_REGISTERED) &&
15549 (did != Fabric_DID)) {
15551 * Throw out the frame if we are not pt2pt.
15552 * The pt2pt protocol allows for discovery frames
15553 * to be received without a registered VPI.
15555 if (!(vport->fc_flag & FC_PT2PT) ||
15556 (phba->link_state == LPFC_HBA_READY)) {
15557 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15562 /* Handle the basic abort sequence (BA_ABTS) event */
15563 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
15564 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
15568 /* Link this frame */
15569 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
15571 /* unable to add frame to vport - throw it out */
15572 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15575 /* If not last frame in sequence continue processing frames. */
15576 if (!lpfc_seq_complete(seq_dmabuf))
15579 /* Send the complete sequence to the upper layer protocol */
15580 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
15584 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
15585 * @phba: pointer to lpfc hba data structure.
15587 * This routine is invoked to post rpi header templates to the
15588 * HBA consistent with the SLI-4 interface spec. This routine
15589 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
15590 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
15592 * This routine does not require any locks. It's usage is expected
15593 * to be driver load or reset recovery when the driver is
15598 * -EIO - The mailbox failed to complete successfully.
15599 * When this error occurs, the driver is not guaranteed
15600 * to have any rpi regions posted to the device and
15601 * must either attempt to repost the regions or take a
15605 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
15607 struct lpfc_rpi_hdr *rpi_page;
15611 /* SLI4 ports that support extents do not require RPI headers. */
15612 if (!phba->sli4_hba.rpi_hdrs_in_use)
15614 if (phba->sli4_hba.extents_in_use)
15617 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
15619 * Assign the rpi headers a physical rpi only if the driver
15620 * has not initialized those resources. A port reset only
15621 * needs the headers posted.
15623 if (bf_get(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags) !=
15625 rpi_page->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
15627 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
15628 if (rc != MBX_SUCCESS) {
15629 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15630 "2008 Error %d posting all rpi "
15638 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags,
15639 LPFC_RPI_RSRC_RDY);
15644 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
15645 * @phba: pointer to lpfc hba data structure.
15646 * @rpi_page: pointer to the rpi memory region.
15648 * This routine is invoked to post a single rpi header to the
15649 * HBA consistent with the SLI-4 interface spec. This memory region
15650 * maps up to 64 rpi context regions.
15654 * -ENOMEM - No available memory
15655 * -EIO - The mailbox failed to complete successfully.
15658 lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
15660 LPFC_MBOXQ_t *mboxq;
15661 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
15663 uint32_t shdr_status, shdr_add_status;
15664 union lpfc_sli4_cfg_shdr *shdr;
15666 /* SLI4 ports that support extents do not require RPI headers. */
15667 if (!phba->sli4_hba.rpi_hdrs_in_use)
15669 if (phba->sli4_hba.extents_in_use)
15672 /* The port is notified of the header region via a mailbox command. */
15673 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15675 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15676 "2001 Unable to allocate memory for issuing "
15677 "SLI_CONFIG_SPECIAL mailbox command\n");
15681 /* Post all rpi memory regions to the port. */
15682 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
15683 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
15684 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
15685 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
15686 sizeof(struct lpfc_sli4_cfg_mhdr),
15687 LPFC_SLI4_MBX_EMBED);
15690 /* Post the physical rpi to the port for this rpi header. */
15691 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
15692 rpi_page->start_rpi);
15693 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
15694 hdr_tmpl, rpi_page->page_count);
15696 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
15697 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
15698 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
15699 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
15700 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15701 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15702 if (rc != MBX_TIMEOUT)
15703 mempool_free(mboxq, phba->mbox_mem_pool);
15704 if (shdr_status || shdr_add_status || rc) {
15705 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15706 "2514 POST_RPI_HDR mailbox failed with "
15707 "status x%x add_status x%x, mbx status x%x\n",
15708 shdr_status, shdr_add_status, rc);
15715 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
15716 * @phba: pointer to lpfc hba data structure.
15718 * This routine is invoked to post rpi header templates to the
15719 * HBA consistent with the SLI-4 interface spec. This routine
15720 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
15721 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
15724 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
15725 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
15728 lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
15731 uint16_t max_rpi, rpi_limit;
15732 uint16_t rpi_remaining, lrpi = 0;
15733 struct lpfc_rpi_hdr *rpi_hdr;
15734 unsigned long iflag;
15737 * Fetch the next logical rpi. Because this index is logical,
15738 * the driver starts at 0 each time.
15740 spin_lock_irqsave(&phba->hbalock, iflag);
15741 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
15742 rpi_limit = phba->sli4_hba.next_rpi;
15744 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, 0);
15745 if (rpi >= rpi_limit)
15746 rpi = LPFC_RPI_ALLOC_ERROR;
15748 set_bit(rpi, phba->sli4_hba.rpi_bmask);
15749 phba->sli4_hba.max_cfg_param.rpi_used++;
15750 phba->sli4_hba.rpi_count++;
15752 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
15753 "0001 rpi:%x max:%x lim:%x\n",
15754 (int) rpi, max_rpi, rpi_limit);
15757 * Don't try to allocate more rpi header regions if the device limit
15758 * has been exhausted.
15760 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
15761 (phba->sli4_hba.rpi_count >= max_rpi)) {
15762 spin_unlock_irqrestore(&phba->hbalock, iflag);
15767 * RPI header postings are not required for SLI4 ports capable of
15770 if (!phba->sli4_hba.rpi_hdrs_in_use) {
15771 spin_unlock_irqrestore(&phba->hbalock, iflag);
15776 * If the driver is running low on rpi resources, allocate another
15777 * page now. Note that the next_rpi value is used because
15778 * it represents how many are actually in use whereas max_rpi notes
15779 * how many are supported max by the device.
15781 rpi_remaining = phba->sli4_hba.next_rpi - phba->sli4_hba.rpi_count;
15782 spin_unlock_irqrestore(&phba->hbalock, iflag);
15783 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
15784 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
15786 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15787 "2002 Error Could not grow rpi "
15790 lrpi = rpi_hdr->start_rpi;
15791 rpi_hdr->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
15792 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
15800 * lpfc_sli4_free_rpi - Release an rpi for reuse.
15801 * @phba: pointer to lpfc hba data structure.
15803 * This routine is invoked to release an rpi to the pool of
15804 * available rpis maintained by the driver.
15807 __lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
15809 if (test_and_clear_bit(rpi, phba->sli4_hba.rpi_bmask)) {
15810 phba->sli4_hba.rpi_count--;
15811 phba->sli4_hba.max_cfg_param.rpi_used--;
15816 * lpfc_sli4_free_rpi - Release an rpi for reuse.
15817 * @phba: pointer to lpfc hba data structure.
15819 * This routine is invoked to release an rpi to the pool of
15820 * available rpis maintained by the driver.
15823 lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
15825 spin_lock_irq(&phba->hbalock);
15826 __lpfc_sli4_free_rpi(phba, rpi);
15827 spin_unlock_irq(&phba->hbalock);
15831 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
15832 * @phba: pointer to lpfc hba data structure.
15834 * This routine is invoked to remove the memory region that
15835 * provided rpi via a bitmask.
15838 lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
15840 kfree(phba->sli4_hba.rpi_bmask);
15841 kfree(phba->sli4_hba.rpi_ids);
15842 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
15846 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
15847 * @phba: pointer to lpfc hba data structure.
15849 * This routine is invoked to remove the memory region that
15850 * provided rpi via a bitmask.
15853 lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp,
15854 void (*cmpl)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *arg)
15856 LPFC_MBOXQ_t *mboxq;
15857 struct lpfc_hba *phba = ndlp->phba;
15860 /* The port is notified of the header region via a mailbox command. */
15861 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15865 /* Post all rpi memory regions to the port. */
15866 lpfc_resume_rpi(mboxq, ndlp);
15868 mboxq->mbox_cmpl = cmpl;
15869 mboxq->context1 = arg;
15870 mboxq->context2 = ndlp;
15872 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15873 mboxq->vport = ndlp->vport;
15874 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15875 if (rc == MBX_NOT_FINISHED) {
15876 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15877 "2010 Resume RPI Mailbox failed "
15878 "status %d, mbxStatus x%x\n", rc,
15879 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
15880 mempool_free(mboxq, phba->mbox_mem_pool);
15887 * lpfc_sli4_init_vpi - Initialize a vpi with the port
15888 * @vport: Pointer to the vport for which the vpi is being initialized
15890 * This routine is invoked to activate a vpi with the port.
15894 * -Evalue otherwise
15897 lpfc_sli4_init_vpi(struct lpfc_vport *vport)
15899 LPFC_MBOXQ_t *mboxq;
15901 int retval = MBX_SUCCESS;
15903 struct lpfc_hba *phba = vport->phba;
15904 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15907 lpfc_init_vpi(phba, mboxq, vport->vpi);
15908 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
15909 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
15910 if (rc != MBX_SUCCESS) {
15911 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
15912 "2022 INIT VPI Mailbox failed "
15913 "status %d, mbxStatus x%x\n", rc,
15914 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
15917 if (rc != MBX_TIMEOUT)
15918 mempool_free(mboxq, vport->phba->mbox_mem_pool);
15924 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
15925 * @phba: pointer to lpfc hba data structure.
15926 * @mboxq: Pointer to mailbox object.
15928 * This routine is invoked to manually add a single FCF record. The caller
15929 * must pass a completely initialized FCF_Record. This routine takes
15930 * care of the nonembedded mailbox operations.
15933 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
15936 union lpfc_sli4_cfg_shdr *shdr;
15937 uint32_t shdr_status, shdr_add_status;
15939 virt_addr = mboxq->sge_array->addr[0];
15940 /* The IOCTL status is embedded in the mailbox subheader. */
15941 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
15942 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15943 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15945 if ((shdr_status || shdr_add_status) &&
15946 (shdr_status != STATUS_FCF_IN_USE))
15947 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15948 "2558 ADD_FCF_RECORD mailbox failed with "
15949 "status x%x add_status x%x\n",
15950 shdr_status, shdr_add_status);
15952 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15956 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
15957 * @phba: pointer to lpfc hba data structure.
15958 * @fcf_record: pointer to the initialized fcf record to add.
15960 * This routine is invoked to manually add a single FCF record. The caller
15961 * must pass a completely initialized FCF_Record. This routine takes
15962 * care of the nonembedded mailbox operations.
15965 lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
15968 LPFC_MBOXQ_t *mboxq;
15971 struct lpfc_mbx_sge sge;
15972 uint32_t alloc_len, req_len;
15975 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15977 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15978 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
15982 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
15985 /* Allocate DMA memory and set up the non-embedded mailbox command */
15986 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
15987 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
15988 req_len, LPFC_SLI4_MBX_NEMBED);
15989 if (alloc_len < req_len) {
15990 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15991 "2523 Allocated DMA memory size (x%x) is "
15992 "less than the requested DMA memory "
15993 "size (x%x)\n", alloc_len, req_len);
15994 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15999 * Get the first SGE entry from the non-embedded DMA memory. This
16000 * routine only uses a single SGE.
16002 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
16003 virt_addr = mboxq->sge_array->addr[0];
16005 * Configure the FCF record for FCFI 0. This is the driver's
16006 * hardcoded default and gets used in nonFIP mode.
16008 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
16009 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
16010 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
16013 * Copy the fcf_index and the FCF Record Data. The data starts after
16014 * the FCoE header plus word10. The data copy needs to be endian
16017 bytep += sizeof(uint32_t);
16018 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
16019 mboxq->vport = phba->pport;
16020 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
16021 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
16022 if (rc == MBX_NOT_FINISHED) {
16023 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16024 "2515 ADD_FCF_RECORD mailbox failed with "
16025 "status 0x%x\n", rc);
16026 lpfc_sli4_mbox_cmd_free(phba, mboxq);
16035 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
16036 * @phba: pointer to lpfc hba data structure.
16037 * @fcf_record: pointer to the fcf record to write the default data.
16038 * @fcf_index: FCF table entry index.
16040 * This routine is invoked to build the driver's default FCF record. The
16041 * values used are hardcoded. This routine handles memory initialization.
16045 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
16046 struct fcf_record *fcf_record,
16047 uint16_t fcf_index)
16049 memset(fcf_record, 0, sizeof(struct fcf_record));
16050 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
16051 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
16052 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
16053 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
16054 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
16055 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
16056 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
16057 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
16058 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
16059 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
16060 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
16061 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
16062 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
16063 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
16064 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
16065 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
16066 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
16067 /* Set the VLAN bit map */
16068 if (phba->valid_vlan) {
16069 fcf_record->vlan_bitmap[phba->vlan_id / 8]
16070 = 1 << (phba->vlan_id % 8);
16075 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
16076 * @phba: pointer to lpfc hba data structure.
16077 * @fcf_index: FCF table entry offset.
16079 * This routine is invoked to scan the entire FCF table by reading FCF
16080 * record and processing it one at a time starting from the @fcf_index
16081 * for initial FCF discovery or fast FCF failover rediscovery.
16083 * Return 0 if the mailbox command is submitted successfully, none 0
16087 lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
16090 LPFC_MBOXQ_t *mboxq;
16092 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
16093 phba->fcoe_cvl_eventtag_attn = phba->fcoe_cvl_eventtag;
16094 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16096 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16097 "2000 Failed to allocate mbox for "
16100 goto fail_fcf_scan;
16102 /* Construct the read FCF record mailbox command */
16103 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
16106 goto fail_fcf_scan;
16108 /* Issue the mailbox command asynchronously */
16109 mboxq->vport = phba->pport;
16110 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
16112 spin_lock_irq(&phba->hbalock);
16113 phba->hba_flag |= FCF_TS_INPROG;
16114 spin_unlock_irq(&phba->hbalock);
16116 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
16117 if (rc == MBX_NOT_FINISHED)
16120 /* Reset eligible FCF count for new scan */
16121 if (fcf_index == LPFC_FCOE_FCF_GET_FIRST)
16122 phba->fcf.eligible_fcf_cnt = 0;
16128 lpfc_sli4_mbox_cmd_free(phba, mboxq);
16129 /* FCF scan failed, clear FCF_TS_INPROG flag */
16130 spin_lock_irq(&phba->hbalock);
16131 phba->hba_flag &= ~FCF_TS_INPROG;
16132 spin_unlock_irq(&phba->hbalock);
16138 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
16139 * @phba: pointer to lpfc hba data structure.
16140 * @fcf_index: FCF table entry offset.
16142 * This routine is invoked to read an FCF record indicated by @fcf_index
16143 * and to use it for FLOGI roundrobin FCF failover.
16145 * Return 0 if the mailbox command is submitted successfully, none 0
16149 lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
16152 LPFC_MBOXQ_t *mboxq;
16154 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16156 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
16157 "2763 Failed to allocate mbox for "
16160 goto fail_fcf_read;
16162 /* Construct the read FCF record mailbox command */
16163 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
16166 goto fail_fcf_read;
16168 /* Issue the mailbox command asynchronously */
16169 mboxq->vport = phba->pport;
16170 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
16171 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
16172 if (rc == MBX_NOT_FINISHED)
16178 if (error && mboxq)
16179 lpfc_sli4_mbox_cmd_free(phba, mboxq);
16184 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
16185 * @phba: pointer to lpfc hba data structure.
16186 * @fcf_index: FCF table entry offset.
16188 * This routine is invoked to read an FCF record indicated by @fcf_index to
16189 * determine whether it's eligible for FLOGI roundrobin failover list.
16191 * Return 0 if the mailbox command is submitted successfully, none 0
16195 lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
16198 LPFC_MBOXQ_t *mboxq;
16200 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16202 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
16203 "2758 Failed to allocate mbox for "
16206 goto fail_fcf_read;
16208 /* Construct the read FCF record mailbox command */
16209 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
16212 goto fail_fcf_read;
16214 /* Issue the mailbox command asynchronously */
16215 mboxq->vport = phba->pport;
16216 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
16217 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
16218 if (rc == MBX_NOT_FINISHED)
16224 if (error && mboxq)
16225 lpfc_sli4_mbox_cmd_free(phba, mboxq);
16230 * lpfc_check_next_fcf_pri_level
16231 * phba pointer to the lpfc_hba struct for this port.
16232 * This routine is called from the lpfc_sli4_fcf_rr_next_index_get
16233 * routine when the rr_bmask is empty. The FCF indecies are put into the
16234 * rr_bmask based on their priority level. Starting from the highest priority
16235 * to the lowest. The most likely FCF candidate will be in the highest
16236 * priority group. When this routine is called it searches the fcf_pri list for
16237 * next lowest priority group and repopulates the rr_bmask with only those
16240 * 1=success 0=failure
16243 lpfc_check_next_fcf_pri_level(struct lpfc_hba *phba)
16245 uint16_t next_fcf_pri;
16246 uint16_t last_index;
16247 struct lpfc_fcf_pri *fcf_pri;
16251 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
16252 LPFC_SLI4_FCF_TBL_INDX_MAX);
16253 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
16254 "3060 Last IDX %d\n", last_index);
16256 /* Verify the priority list has 2 or more entries */
16257 spin_lock_irq(&phba->hbalock);
16258 if (list_empty(&phba->fcf.fcf_pri_list) ||
16259 list_is_singular(&phba->fcf.fcf_pri_list)) {
16260 spin_unlock_irq(&phba->hbalock);
16261 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
16262 "3061 Last IDX %d\n", last_index);
16263 return 0; /* Empty rr list */
16265 spin_unlock_irq(&phba->hbalock);
16269 * Clear the rr_bmask and set all of the bits that are at this
16272 memset(phba->fcf.fcf_rr_bmask, 0,
16273 sizeof(*phba->fcf.fcf_rr_bmask));
16274 spin_lock_irq(&phba->hbalock);
16275 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
16276 if (fcf_pri->fcf_rec.flag & LPFC_FCF_FLOGI_FAILED)
16279 * the 1st priority that has not FLOGI failed
16280 * will be the highest.
16283 next_fcf_pri = fcf_pri->fcf_rec.priority;
16284 spin_unlock_irq(&phba->hbalock);
16285 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
16286 rc = lpfc_sli4_fcf_rr_index_set(phba,
16287 fcf_pri->fcf_rec.fcf_index);
16291 spin_lock_irq(&phba->hbalock);
16294 * if next_fcf_pri was not set above and the list is not empty then
16295 * we have failed flogis on all of them. So reset flogi failed
16296 * and start at the beginning.
16298 if (!next_fcf_pri && !list_empty(&phba->fcf.fcf_pri_list)) {
16299 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
16300 fcf_pri->fcf_rec.flag &= ~LPFC_FCF_FLOGI_FAILED;
16302 * the 1st priority that has not FLOGI failed
16303 * will be the highest.
16306 next_fcf_pri = fcf_pri->fcf_rec.priority;
16307 spin_unlock_irq(&phba->hbalock);
16308 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
16309 rc = lpfc_sli4_fcf_rr_index_set(phba,
16310 fcf_pri->fcf_rec.fcf_index);
16314 spin_lock_irq(&phba->hbalock);
16318 spin_unlock_irq(&phba->hbalock);
16323 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
16324 * @phba: pointer to lpfc hba data structure.
16326 * This routine is to get the next eligible FCF record index in a round
16327 * robin fashion. If the next eligible FCF record index equals to the
16328 * initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
16329 * shall be returned, otherwise, the next eligible FCF record's index
16330 * shall be returned.
16333 lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
16335 uint16_t next_fcf_index;
16338 /* Search start from next bit of currently registered FCF index */
16339 next_fcf_index = phba->fcf.current_rec.fcf_indx;
16342 /* Determine the next fcf index to check */
16343 next_fcf_index = (next_fcf_index + 1) % LPFC_SLI4_FCF_TBL_INDX_MAX;
16344 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
16345 LPFC_SLI4_FCF_TBL_INDX_MAX,
16348 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
16349 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
16351 * If we have wrapped then we need to clear the bits that
16352 * have been tested so that we can detect when we should
16353 * change the priority level.
16355 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
16356 LPFC_SLI4_FCF_TBL_INDX_MAX, 0);
16360 /* Check roundrobin failover list empty condition */
16361 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX ||
16362 next_fcf_index == phba->fcf.current_rec.fcf_indx) {
16364 * If next fcf index is not found check if there are lower
16365 * Priority level fcf's in the fcf_priority list.
16366 * Set up the rr_bmask with all of the avaiable fcf bits
16367 * at that level and continue the selection process.
16369 if (lpfc_check_next_fcf_pri_level(phba))
16370 goto initial_priority;
16371 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
16372 "2844 No roundrobin failover FCF available\n");
16373 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX)
16374 return LPFC_FCOE_FCF_NEXT_NONE;
16376 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
16377 "3063 Only FCF available idx %d, flag %x\n",
16379 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag);
16380 return next_fcf_index;
16384 if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX &&
16385 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag &
16386 LPFC_FCF_FLOGI_FAILED) {
16387 if (list_is_singular(&phba->fcf.fcf_pri_list))
16388 return LPFC_FCOE_FCF_NEXT_NONE;
16390 goto next_priority;
16393 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
16394 "2845 Get next roundrobin failover FCF (x%x)\n",
16397 return next_fcf_index;
16401 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
16402 * @phba: pointer to lpfc hba data structure.
16404 * This routine sets the FCF record index in to the eligible bmask for
16405 * roundrobin failover search. It checks to make sure that the index
16406 * does not go beyond the range of the driver allocated bmask dimension
16407 * before setting the bit.
16409 * Returns 0 if the index bit successfully set, otherwise, it returns
16413 lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
16415 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
16416 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
16417 "2610 FCF (x%x) reached driver's book "
16418 "keeping dimension:x%x\n",
16419 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
16422 /* Set the eligible FCF record index bmask */
16423 set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
16425 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
16426 "2790 Set FCF (x%x) to roundrobin FCF failover "
16427 "bmask\n", fcf_index);
16433 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
16434 * @phba: pointer to lpfc hba data structure.
16436 * This routine clears the FCF record index from the eligible bmask for
16437 * roundrobin failover search. It checks to make sure that the index
16438 * does not go beyond the range of the driver allocated bmask dimension
16439 * before clearing the bit.
16442 lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
16444 struct lpfc_fcf_pri *fcf_pri, *fcf_pri_next;
16445 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
16446 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
16447 "2762 FCF (x%x) reached driver's book "
16448 "keeping dimension:x%x\n",
16449 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
16452 /* Clear the eligible FCF record index bmask */
16453 spin_lock_irq(&phba->hbalock);
16454 list_for_each_entry_safe(fcf_pri, fcf_pri_next, &phba->fcf.fcf_pri_list,
16456 if (fcf_pri->fcf_rec.fcf_index == fcf_index) {
16457 list_del_init(&fcf_pri->list);
16461 spin_unlock_irq(&phba->hbalock);
16462 clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
16464 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
16465 "2791 Clear FCF (x%x) from roundrobin failover "
16466 "bmask\n", fcf_index);
16470 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
16471 * @phba: pointer to lpfc hba data structure.
16473 * This routine is the completion routine for the rediscover FCF table mailbox
16474 * command. If the mailbox command returned failure, it will try to stop the
16475 * FCF rediscover wait timer.
16478 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
16480 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
16481 uint32_t shdr_status, shdr_add_status;
16483 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
16485 shdr_status = bf_get(lpfc_mbox_hdr_status,
16486 &redisc_fcf->header.cfg_shdr.response);
16487 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
16488 &redisc_fcf->header.cfg_shdr.response);
16489 if (shdr_status || shdr_add_status) {
16490 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
16491 "2746 Requesting for FCF rediscovery failed "
16492 "status x%x add_status x%x\n",
16493 shdr_status, shdr_add_status);
16494 if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
16495 spin_lock_irq(&phba->hbalock);
16496 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
16497 spin_unlock_irq(&phba->hbalock);
16499 * CVL event triggered FCF rediscover request failed,
16500 * last resort to re-try current registered FCF entry.
16502 lpfc_retry_pport_discovery(phba);
16504 spin_lock_irq(&phba->hbalock);
16505 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
16506 spin_unlock_irq(&phba->hbalock);
16508 * DEAD FCF event triggered FCF rediscover request
16509 * failed, last resort to fail over as a link down
16510 * to FCF registration.
16512 lpfc_sli4_fcf_dead_failthrough(phba);
16515 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
16516 "2775 Start FCF rediscover quiescent timer\n");
16518 * Start FCF rediscovery wait timer for pending FCF
16519 * before rescan FCF record table.
16521 lpfc_fcf_redisc_wait_start_timer(phba);
16524 mempool_free(mbox, phba->mbox_mem_pool);
16528 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
16529 * @phba: pointer to lpfc hba data structure.
16531 * This routine is invoked to request for rediscovery of the entire FCF table
16535 lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
16537 LPFC_MBOXQ_t *mbox;
16538 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
16541 /* Cancel retry delay timers to all vports before FCF rediscover */
16542 lpfc_cancel_all_vport_retry_delay_timer(phba);
16544 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16546 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16547 "2745 Failed to allocate mbox for "
16548 "requesting FCF rediscover.\n");
16552 length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
16553 sizeof(struct lpfc_sli4_cfg_mhdr));
16554 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16555 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
16556 length, LPFC_SLI4_MBX_EMBED);
16558 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
16559 /* Set count to 0 for invalidating the entire FCF database */
16560 bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
16562 /* Issue the mailbox command asynchronously */
16563 mbox->vport = phba->pport;
16564 mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
16565 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
16567 if (rc == MBX_NOT_FINISHED) {
16568 mempool_free(mbox, phba->mbox_mem_pool);
16575 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
16576 * @phba: pointer to lpfc hba data structure.
16578 * This function is the failover routine as a last resort to the FCF DEAD
16579 * event when driver failed to perform fast FCF failover.
16582 lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
16584 uint32_t link_state;
16587 * Last resort as FCF DEAD event failover will treat this as
16588 * a link down, but save the link state because we don't want
16589 * it to be changed to Link Down unless it is already down.
16591 link_state = phba->link_state;
16592 lpfc_linkdown(phba);
16593 phba->link_state = link_state;
16595 /* Unregister FCF if no devices connected to it */
16596 lpfc_unregister_unused_fcf(phba);
16600 * lpfc_sli_get_config_region23 - Get sli3 port region 23 data.
16601 * @phba: pointer to lpfc hba data structure.
16602 * @rgn23_data: pointer to configure region 23 data.
16604 * This function gets SLI3 port configure region 23 data through memory dump
16605 * mailbox command. When it successfully retrieves data, the size of the data
16606 * will be returned, otherwise, 0 will be returned.
16609 lpfc_sli_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
16611 LPFC_MBOXQ_t *pmb = NULL;
16613 uint32_t offset = 0;
16619 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16621 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16622 "2600 failed to allocate mailbox memory\n");
16628 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
16629 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
16631 if (rc != MBX_SUCCESS) {
16632 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
16633 "2601 failed to read config "
16634 "region 23, rc 0x%x Status 0x%x\n",
16635 rc, mb->mbxStatus);
16636 mb->un.varDmp.word_cnt = 0;
16639 * dump mem may return a zero when finished or we got a
16640 * mailbox error, either way we are done.
16642 if (mb->un.varDmp.word_cnt == 0)
16644 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
16645 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
16647 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
16648 rgn23_data + offset,
16649 mb->un.varDmp.word_cnt);
16650 offset += mb->un.varDmp.word_cnt;
16651 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
16653 mempool_free(pmb, phba->mbox_mem_pool);
16658 * lpfc_sli4_get_config_region23 - Get sli4 port region 23 data.
16659 * @phba: pointer to lpfc hba data structure.
16660 * @rgn23_data: pointer to configure region 23 data.
16662 * This function gets SLI4 port configure region 23 data through memory dump
16663 * mailbox command. When it successfully retrieves data, the size of the data
16664 * will be returned, otherwise, 0 will be returned.
16667 lpfc_sli4_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
16669 LPFC_MBOXQ_t *mboxq = NULL;
16670 struct lpfc_dmabuf *mp = NULL;
16671 struct lpfc_mqe *mqe;
16672 uint32_t data_length = 0;
16678 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16680 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16681 "3105 failed to allocate mailbox memory\n");
16685 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq))
16687 mqe = &mboxq->u.mqe;
16688 mp = (struct lpfc_dmabuf *) mboxq->context1;
16689 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
16692 data_length = mqe->un.mb_words[5];
16693 if (data_length == 0)
16695 if (data_length > DMP_RGN23_SIZE) {
16699 lpfc_sli_pcimem_bcopy((char *)mp->virt, rgn23_data, data_length);
16701 mempool_free(mboxq, phba->mbox_mem_pool);
16703 lpfc_mbuf_free(phba, mp->virt, mp->phys);
16706 return data_length;
16710 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
16711 * @phba: pointer to lpfc hba data structure.
16713 * This function read region 23 and parse TLV for port status to
16714 * decide if the user disaled the port. If the TLV indicates the
16715 * port is disabled, the hba_flag is set accordingly.
16718 lpfc_sli_read_link_ste(struct lpfc_hba *phba)
16720 uint8_t *rgn23_data = NULL;
16721 uint32_t if_type, data_size, sub_tlv_len, tlv_offset;
16722 uint32_t offset = 0;
16724 /* Get adapter Region 23 data */
16725 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
16729 if (phba->sli_rev < LPFC_SLI_REV4)
16730 data_size = lpfc_sli_get_config_region23(phba, rgn23_data);
16732 if_type = bf_get(lpfc_sli_intf_if_type,
16733 &phba->sli4_hba.sli_intf);
16734 if (if_type == LPFC_SLI_INTF_IF_TYPE_0)
16736 data_size = lpfc_sli4_get_config_region23(phba, rgn23_data);
16742 /* Check the region signature first */
16743 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
16744 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16745 "2619 Config region 23 has bad signature\n");
16750 /* Check the data structure version */
16751 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
16752 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16753 "2620 Config region 23 has bad version\n");
16758 /* Parse TLV entries in the region */
16759 while (offset < data_size) {
16760 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
16763 * If the TLV is not driver specific TLV or driver id is
16764 * not linux driver id, skip the record.
16766 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
16767 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
16768 (rgn23_data[offset + 3] != 0)) {
16769 offset += rgn23_data[offset + 1] * 4 + 4;
16773 /* Driver found a driver specific TLV in the config region */
16774 sub_tlv_len = rgn23_data[offset + 1] * 4;
16779 * Search for configured port state sub-TLV.
16781 while ((offset < data_size) &&
16782 (tlv_offset < sub_tlv_len)) {
16783 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
16788 if (rgn23_data[offset] != PORT_STE_TYPE) {
16789 offset += rgn23_data[offset + 1] * 4 + 4;
16790 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
16794 /* This HBA contains PORT_STE configured */
16795 if (!rgn23_data[offset + 2])
16796 phba->hba_flag |= LINK_DISABLED;
16808 * lpfc_wr_object - write an object to the firmware
16809 * @phba: HBA structure that indicates port to create a queue on.
16810 * @dmabuf_list: list of dmabufs to write to the port.
16811 * @size: the total byte value of the objects to write to the port.
16812 * @offset: the current offset to be used to start the transfer.
16814 * This routine will create a wr_object mailbox command to send to the port.
16815 * the mailbox command will be constructed using the dma buffers described in
16816 * @dmabuf_list to create a list of BDEs. This routine will fill in as many
16817 * BDEs that the imbedded mailbox can support. The @offset variable will be
16818 * used to indicate the starting offset of the transfer and will also return
16819 * the offset after the write object mailbox has completed. @size is used to
16820 * determine the end of the object and whether the eof bit should be set.
16822 * Return 0 is successful and offset will contain the the new offset to use
16823 * for the next write.
16824 * Return negative value for error cases.
16827 lpfc_wr_object(struct lpfc_hba *phba, struct list_head *dmabuf_list,
16828 uint32_t size, uint32_t *offset)
16830 struct lpfc_mbx_wr_object *wr_object;
16831 LPFC_MBOXQ_t *mbox;
16833 uint32_t shdr_status, shdr_add_status;
16835 union lpfc_sli4_cfg_shdr *shdr;
16836 struct lpfc_dmabuf *dmabuf;
16837 uint32_t written = 0;
16839 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16843 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16844 LPFC_MBOX_OPCODE_WRITE_OBJECT,
16845 sizeof(struct lpfc_mbx_wr_object) -
16846 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
16848 wr_object = (struct lpfc_mbx_wr_object *)&mbox->u.mqe.un.wr_object;
16849 wr_object->u.request.write_offset = *offset;
16850 sprintf((uint8_t *)wr_object->u.request.object_name, "/");
16851 wr_object->u.request.object_name[0] =
16852 cpu_to_le32(wr_object->u.request.object_name[0]);
16853 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 0);
16854 list_for_each_entry(dmabuf, dmabuf_list, list) {
16855 if (i >= LPFC_MBX_WR_CONFIG_MAX_BDE || written >= size)
16857 wr_object->u.request.bde[i].addrLow = putPaddrLow(dmabuf->phys);
16858 wr_object->u.request.bde[i].addrHigh =
16859 putPaddrHigh(dmabuf->phys);
16860 if (written + SLI4_PAGE_SIZE >= size) {
16861 wr_object->u.request.bde[i].tus.f.bdeSize =
16863 written += (size - written);
16864 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 1);
16866 wr_object->u.request.bde[i].tus.f.bdeSize =
16868 written += SLI4_PAGE_SIZE;
16872 wr_object->u.request.bde_count = i;
16873 bf_set(lpfc_wr_object_write_length, &wr_object->u.request, written);
16874 if (!phba->sli4_hba.intr_enable)
16875 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16877 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
16878 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16880 /* The IOCTL status is embedded in the mailbox subheader. */
16881 shdr = (union lpfc_sli4_cfg_shdr *) &wr_object->header.cfg_shdr;
16882 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16883 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16884 if (rc != MBX_TIMEOUT)
16885 mempool_free(mbox, phba->mbox_mem_pool);
16886 if (shdr_status || shdr_add_status || rc) {
16887 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16888 "3025 Write Object mailbox failed with "
16889 "status x%x add_status x%x, mbx status x%x\n",
16890 shdr_status, shdr_add_status, rc);
16893 *offset += wr_object->u.response.actual_write_length;
16898 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
16899 * @vport: pointer to vport data structure.
16901 * This function iterate through the mailboxq and clean up all REG_LOGIN
16902 * and REG_VPI mailbox commands associated with the vport. This function
16903 * is called when driver want to restart discovery of the vport due to
16904 * a Clear Virtual Link event.
16907 lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
16909 struct lpfc_hba *phba = vport->phba;
16910 LPFC_MBOXQ_t *mb, *nextmb;
16911 struct lpfc_dmabuf *mp;
16912 struct lpfc_nodelist *ndlp;
16913 struct lpfc_nodelist *act_mbx_ndlp = NULL;
16914 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
16915 LIST_HEAD(mbox_cmd_list);
16916 uint8_t restart_loop;
16918 /* Clean up internally queued mailbox commands with the vport */
16919 spin_lock_irq(&phba->hbalock);
16920 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
16921 if (mb->vport != vport)
16924 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
16925 (mb->u.mb.mbxCommand != MBX_REG_VPI))
16928 list_del(&mb->list);
16929 list_add_tail(&mb->list, &mbox_cmd_list);
16931 /* Clean up active mailbox command with the vport */
16932 mb = phba->sli.mbox_active;
16933 if (mb && (mb->vport == vport)) {
16934 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
16935 (mb->u.mb.mbxCommand == MBX_REG_VPI))
16936 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16937 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
16938 act_mbx_ndlp = (struct lpfc_nodelist *)mb->context2;
16939 /* Put reference count for delayed processing */
16940 act_mbx_ndlp = lpfc_nlp_get(act_mbx_ndlp);
16941 /* Unregister the RPI when mailbox complete */
16942 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
16945 /* Cleanup any mailbox completions which are not yet processed */
16948 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
16950 * If this mailox is already processed or it is
16951 * for another vport ignore it.
16953 if ((mb->vport != vport) ||
16954 (mb->mbox_flag & LPFC_MBX_IMED_UNREG))
16957 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
16958 (mb->u.mb.mbxCommand != MBX_REG_VPI))
16961 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16962 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
16963 ndlp = (struct lpfc_nodelist *)mb->context2;
16964 /* Unregister the RPI when mailbox complete */
16965 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
16967 spin_unlock_irq(&phba->hbalock);
16968 spin_lock(shost->host_lock);
16969 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
16970 spin_unlock(shost->host_lock);
16971 spin_lock_irq(&phba->hbalock);
16975 } while (restart_loop);
16977 spin_unlock_irq(&phba->hbalock);
16979 /* Release the cleaned-up mailbox commands */
16980 while (!list_empty(&mbox_cmd_list)) {
16981 list_remove_head(&mbox_cmd_list, mb, LPFC_MBOXQ_t, list);
16982 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
16983 mp = (struct lpfc_dmabuf *) (mb->context1);
16985 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
16988 ndlp = (struct lpfc_nodelist *) mb->context2;
16989 mb->context2 = NULL;
16991 spin_lock(shost->host_lock);
16992 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
16993 spin_unlock(shost->host_lock);
16994 lpfc_nlp_put(ndlp);
16997 mempool_free(mb, phba->mbox_mem_pool);
17000 /* Release the ndlp with the cleaned-up active mailbox command */
17001 if (act_mbx_ndlp) {
17002 spin_lock(shost->host_lock);
17003 act_mbx_ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
17004 spin_unlock(shost->host_lock);
17005 lpfc_nlp_put(act_mbx_ndlp);
17010 * lpfc_drain_txq - Drain the txq
17011 * @phba: Pointer to HBA context object.
17013 * This function attempt to submit IOCBs on the txq
17014 * to the adapter. For SLI4 adapters, the txq contains
17015 * ELS IOCBs that have been deferred because the there
17016 * are no SGLs. This congestion can occur with large
17017 * vport counts during node discovery.
17021 lpfc_drain_txq(struct lpfc_hba *phba)
17023 LIST_HEAD(completions);
17024 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
17025 struct lpfc_iocbq *piocbq = NULL;
17026 unsigned long iflags = 0;
17027 char *fail_msg = NULL;
17028 struct lpfc_sglq *sglq;
17029 union lpfc_wqe wqe;
17030 uint32_t txq_cnt = 0;
17032 spin_lock_irqsave(&pring->ring_lock, iflags);
17033 list_for_each_entry(piocbq, &pring->txq, list) {
17037 if (txq_cnt > pring->txq_max)
17038 pring->txq_max = txq_cnt;
17040 spin_unlock_irqrestore(&pring->ring_lock, iflags);
17042 while (!list_empty(&pring->txq)) {
17043 spin_lock_irqsave(&pring->ring_lock, iflags);
17045 piocbq = lpfc_sli_ringtx_get(phba, pring);
17047 spin_unlock_irqrestore(&pring->ring_lock, iflags);
17048 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17049 "2823 txq empty and txq_cnt is %d\n ",
17053 sglq = __lpfc_sli_get_sglq(phba, piocbq);
17055 __lpfc_sli_ringtx_put(phba, pring, piocbq);
17056 spin_unlock_irqrestore(&pring->ring_lock, iflags);
17061 /* The xri and iocb resources secured,
17062 * attempt to issue request
17064 piocbq->sli4_lxritag = sglq->sli4_lxritag;
17065 piocbq->sli4_xritag = sglq->sli4_xritag;
17066 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocbq, sglq))
17067 fail_msg = "to convert bpl to sgl";
17068 else if (lpfc_sli4_iocb2wqe(phba, piocbq, &wqe))
17069 fail_msg = "to convert iocb to wqe";
17070 else if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
17071 fail_msg = " - Wq is full";
17073 lpfc_sli_ringtxcmpl_put(phba, pring, piocbq);
17076 /* Failed means we can't issue and need to cancel */
17077 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17078 "2822 IOCB failed %s iotag 0x%x "
17081 piocbq->iotag, piocbq->sli4_xritag);
17082 list_add_tail(&piocbq->list, &completions);
17084 spin_unlock_irqrestore(&pring->ring_lock, iflags);
17087 /* Cancel all the IOCBs that cannot be issued */
17088 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
17089 IOERR_SLI_ABORTED);