1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2014 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
22 #include <linux/blkdev.h>
23 #include <linux/pci.h>
24 #include <linux/interrupt.h>
25 #include <linux/delay.h>
26 #include <linux/slab.h>
28 #include <scsi/scsi.h>
29 #include <scsi/scsi_cmnd.h>
30 #include <scsi/scsi_device.h>
31 #include <scsi/scsi_host.h>
32 #include <scsi/scsi_transport_fc.h>
33 #include <scsi/fc/fc_fs.h>
34 #include <linux/aer.h>
39 #include "lpfc_sli4.h"
41 #include "lpfc_disc.h"
42 #include "lpfc_scsi.h"
44 #include "lpfc_crtn.h"
45 #include "lpfc_logmsg.h"
46 #include "lpfc_compat.h"
47 #include "lpfc_debugfs.h"
48 #include "lpfc_vport.h"
50 /* There are only four IOCB completion types. */
51 typedef enum _lpfc_iocb_type {
59 /* Provide function prototypes local to this module. */
60 static int lpfc_sli_issue_mbox_s4(struct lpfc_hba *, LPFC_MBOXQ_t *,
62 static int lpfc_sli4_read_rev(struct lpfc_hba *, LPFC_MBOXQ_t *,
63 uint8_t *, uint32_t *);
64 static struct lpfc_iocbq *lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *,
66 static void lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *,
68 static int lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *, struct lpfc_queue *,
70 static int lpfc_sli4_post_els_sgl_list(struct lpfc_hba *, struct list_head *,
72 static void lpfc_sli4_hba_handle_eqe(struct lpfc_hba *, struct lpfc_eqe *,
74 static bool lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba);
75 static bool lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba);
78 lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq)
84 * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
85 * @q: The Work Queue to operate on.
86 * @wqe: The work Queue Entry to put on the Work queue.
88 * This routine will copy the contents of @wqe to the next available entry on
89 * the @q. This function will then ring the Work Queue Doorbell to signal the
90 * HBA to start processing the Work Queue Entry. This function returns 0 if
91 * successful. If no entries are available on @q then this function will return
93 * The caller is expected to hold the hbalock when calling this routine.
96 lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe)
98 union lpfc_wqe *temp_wqe;
99 struct lpfc_register doorbell;
103 /* sanity check on queue memory */
106 temp_wqe = q->qe[q->host_index].wqe;
108 /* If the host has not yet processed the next entry then we are done */
109 idx = ((q->host_index + 1) % q->entry_count);
110 if (idx == q->hba_index) {
115 /* set consumption flag every once in a while */
116 if (!((q->host_index + 1) % q->entry_repost))
117 bf_set(wqe_wqec, &wqe->generic.wqe_com, 1);
118 if (q->phba->sli3_options & LPFC_SLI4_PHWQ_ENABLED)
119 bf_set(wqe_wqid, &wqe->generic.wqe_com, q->queue_id);
120 lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size);
122 /* Update the host index before invoking device */
123 host_index = q->host_index;
129 if (q->db_format == LPFC_DB_LIST_FORMAT) {
130 bf_set(lpfc_wq_db_list_fm_num_posted, &doorbell, 1);
131 bf_set(lpfc_wq_db_list_fm_index, &doorbell, host_index);
132 bf_set(lpfc_wq_db_list_fm_id, &doorbell, q->queue_id);
133 } else if (q->db_format == LPFC_DB_RING_FORMAT) {
134 bf_set(lpfc_wq_db_ring_fm_num_posted, &doorbell, 1);
135 bf_set(lpfc_wq_db_ring_fm_id, &doorbell, q->queue_id);
139 writel(doorbell.word0, q->db_regaddr);
145 * lpfc_sli4_wq_release - Updates internal hba index for WQ
146 * @q: The Work Queue to operate on.
147 * @index: The index to advance the hba index to.
149 * This routine will update the HBA index of a queue to reflect consumption of
150 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
151 * an entry the host calls this function to update the queue's internal
152 * pointers. This routine returns the number of entries that were consumed by
156 lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index)
158 uint32_t released = 0;
160 /* sanity check on queue memory */
164 if (q->hba_index == index)
167 q->hba_index = ((q->hba_index + 1) % q->entry_count);
169 } while (q->hba_index != index);
174 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
175 * @q: The Mailbox Queue to operate on.
176 * @wqe: The Mailbox Queue Entry to put on the Work queue.
178 * This routine will copy the contents of @mqe to the next available entry on
179 * the @q. This function will then ring the Work Queue Doorbell to signal the
180 * HBA to start processing the Work Queue Entry. This function returns 0 if
181 * successful. If no entries are available on @q then this function will return
183 * The caller is expected to hold the hbalock when calling this routine.
186 lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
188 struct lpfc_mqe *temp_mqe;
189 struct lpfc_register doorbell;
191 /* sanity check on queue memory */
194 temp_mqe = q->qe[q->host_index].mqe;
196 /* If the host has not yet processed the next entry then we are done */
197 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
199 lpfc_sli_pcimem_bcopy(mqe, temp_mqe, q->entry_size);
200 /* Save off the mailbox pointer for completion */
201 q->phba->mbox = (MAILBOX_t *)temp_mqe;
203 /* Update the host index before invoking device */
204 q->host_index = ((q->host_index + 1) % q->entry_count);
208 bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1);
209 bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id);
210 writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr);
215 * lpfc_sli4_mq_release - Updates internal hba index for MQ
216 * @q: The Mailbox Queue to operate on.
218 * This routine will update the HBA index of a queue to reflect consumption of
219 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
220 * an entry the host calls this function to update the queue's internal
221 * pointers. This routine returns the number of entries that were consumed by
225 lpfc_sli4_mq_release(struct lpfc_queue *q)
227 /* sanity check on queue memory */
231 /* Clear the mailbox pointer for completion */
232 q->phba->mbox = NULL;
233 q->hba_index = ((q->hba_index + 1) % q->entry_count);
238 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
239 * @q: The Event Queue to get the first valid EQE from
241 * This routine will get the first valid Event Queue Entry from @q, update
242 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
243 * the Queue (no more work to do), or the Queue is full of EQEs that have been
244 * processed, but not popped back to the HBA then this routine will return NULL.
246 static struct lpfc_eqe *
247 lpfc_sli4_eq_get(struct lpfc_queue *q)
249 struct lpfc_eqe *eqe;
252 /* sanity check on queue memory */
255 eqe = q->qe[q->hba_index].eqe;
257 /* If the next EQE is not valid then we are done */
258 if (!bf_get_le32(lpfc_eqe_valid, eqe))
260 /* If the host has not yet processed the next entry then we are done */
261 idx = ((q->hba_index + 1) % q->entry_count);
262 if (idx == q->host_index)
268 * insert barrier for instruction interlock : data from the hardware
269 * must have the valid bit checked before it can be copied and acted
270 * upon. Given what was seen in lpfc_sli4_cq_get() of speculative
271 * instructions allowing action on content before valid bit checked,
272 * add barrier here as well. May not be needed as "content" is a
273 * single 32-bit entity here (vs multi word structure for cq's).
280 * lpfc_sli4_eq_clr_intr - Turn off interrupts from this EQ
281 * @q: The Event Queue to disable interrupts
285 lpfc_sli4_eq_clr_intr(struct lpfc_queue *q)
287 struct lpfc_register doorbell;
290 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
291 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
292 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
293 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
294 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
295 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
299 * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
300 * @q: The Event Queue that the host has completed processing for.
301 * @arm: Indicates whether the host wants to arms this CQ.
303 * This routine will mark all Event Queue Entries on @q, from the last
304 * known completed entry to the last entry that was processed, as completed
305 * by clearing the valid bit for each completion queue entry. Then it will
306 * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
307 * The internal host index in the @q will be updated by this routine to indicate
308 * that the host has finished processing the entries. The @arm parameter
309 * indicates that the queue should be rearmed when ringing the doorbell.
311 * This function will return the number of EQEs that were popped.
314 lpfc_sli4_eq_release(struct lpfc_queue *q, bool arm)
316 uint32_t released = 0;
317 struct lpfc_eqe *temp_eqe;
318 struct lpfc_register doorbell;
320 /* sanity check on queue memory */
324 /* while there are valid entries */
325 while (q->hba_index != q->host_index) {
326 temp_eqe = q->qe[q->host_index].eqe;
327 bf_set_le32(lpfc_eqe_valid, temp_eqe, 0);
329 q->host_index = ((q->host_index + 1) % q->entry_count);
331 if (unlikely(released == 0 && !arm))
334 /* ring doorbell for number popped */
337 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
338 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
340 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
341 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
342 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
343 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
344 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
345 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
346 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
347 if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
348 readl(q->phba->sli4_hba.EQCQDBregaddr);
353 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
354 * @q: The Completion Queue to get the first valid CQE from
356 * This routine will get the first valid Completion Queue Entry from @q, update
357 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
358 * the Queue (no more work to do), or the Queue is full of CQEs that have been
359 * processed, but not popped back to the HBA then this routine will return NULL.
361 static struct lpfc_cqe *
362 lpfc_sli4_cq_get(struct lpfc_queue *q)
364 struct lpfc_cqe *cqe;
367 /* sanity check on queue memory */
371 /* If the next CQE is not valid then we are done */
372 if (!bf_get_le32(lpfc_cqe_valid, q->qe[q->hba_index].cqe))
374 /* If the host has not yet processed the next entry then we are done */
375 idx = ((q->hba_index + 1) % q->entry_count);
376 if (idx == q->host_index)
379 cqe = q->qe[q->hba_index].cqe;
383 * insert barrier for instruction interlock : data from the hardware
384 * must have the valid bit checked before it can be copied and acted
385 * upon. Speculative instructions were allowing a bcopy at the start
386 * of lpfc_sli4_fp_handle_wcqe(), which is called immediately
387 * after our return, to copy data before the valid bit check above
388 * was done. As such, some of the copied data was stale. The barrier
389 * ensures the check is before any data is copied.
396 * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ
397 * @q: The Completion Queue that the host has completed processing for.
398 * @arm: Indicates whether the host wants to arms this CQ.
400 * This routine will mark all Completion queue entries on @q, from the last
401 * known completed entry to the last entry that was processed, as completed
402 * by clearing the valid bit for each completion queue entry. Then it will
403 * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
404 * The internal host index in the @q will be updated by this routine to indicate
405 * that the host has finished processing the entries. The @arm parameter
406 * indicates that the queue should be rearmed when ringing the doorbell.
408 * This function will return the number of CQEs that were released.
411 lpfc_sli4_cq_release(struct lpfc_queue *q, bool arm)
413 uint32_t released = 0;
414 struct lpfc_cqe *temp_qe;
415 struct lpfc_register doorbell;
417 /* sanity check on queue memory */
420 /* while there are valid entries */
421 while (q->hba_index != q->host_index) {
422 temp_qe = q->qe[q->host_index].cqe;
423 bf_set_le32(lpfc_cqe_valid, temp_qe, 0);
425 q->host_index = ((q->host_index + 1) % q->entry_count);
427 if (unlikely(released == 0 && !arm))
430 /* ring doorbell for number popped */
433 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
434 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
435 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION);
436 bf_set(lpfc_eqcq_doorbell_cqid_hi, &doorbell,
437 (q->queue_id >> LPFC_CQID_HI_FIELD_SHIFT));
438 bf_set(lpfc_eqcq_doorbell_cqid_lo, &doorbell, q->queue_id);
439 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
444 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
445 * @q: The Header Receive Queue to operate on.
446 * @wqe: The Receive Queue Entry to put on the Receive queue.
448 * This routine will copy the contents of @wqe to the next available entry on
449 * the @q. This function will then ring the Receive Queue Doorbell to signal the
450 * HBA to start processing the Receive Queue Entry. This function returns the
451 * index that the rqe was copied to if successful. If no entries are available
452 * on @q then this function will return -ENOMEM.
453 * The caller is expected to hold the hbalock when calling this routine.
456 lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
457 struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe)
459 struct lpfc_rqe *temp_hrqe;
460 struct lpfc_rqe *temp_drqe;
461 struct lpfc_register doorbell;
464 /* sanity check on queue memory */
465 if (unlikely(!hq) || unlikely(!dq))
467 put_index = hq->host_index;
468 temp_hrqe = hq->qe[hq->host_index].rqe;
469 temp_drqe = dq->qe[dq->host_index].rqe;
471 if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ)
473 if (hq->host_index != dq->host_index)
475 /* If the host has not yet processed the next entry then we are done */
476 if (((hq->host_index + 1) % hq->entry_count) == hq->hba_index)
478 lpfc_sli_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size);
479 lpfc_sli_pcimem_bcopy(drqe, temp_drqe, dq->entry_size);
481 /* Update the host index to point to the next slot */
482 hq->host_index = ((hq->host_index + 1) % hq->entry_count);
483 dq->host_index = ((dq->host_index + 1) % dq->entry_count);
485 /* Ring The Header Receive Queue Doorbell */
486 if (!(hq->host_index % hq->entry_repost)) {
488 if (hq->db_format == LPFC_DB_RING_FORMAT) {
489 bf_set(lpfc_rq_db_ring_fm_num_posted, &doorbell,
491 bf_set(lpfc_rq_db_ring_fm_id, &doorbell, hq->queue_id);
492 } else if (hq->db_format == LPFC_DB_LIST_FORMAT) {
493 bf_set(lpfc_rq_db_list_fm_num_posted, &doorbell,
495 bf_set(lpfc_rq_db_list_fm_index, &doorbell,
497 bf_set(lpfc_rq_db_list_fm_id, &doorbell, hq->queue_id);
501 writel(doorbell.word0, hq->db_regaddr);
507 * lpfc_sli4_rq_release - Updates internal hba index for RQ
508 * @q: The Header Receive Queue to operate on.
510 * This routine will update the HBA index of a queue to reflect consumption of
511 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
512 * consumed an entry the host calls this function to update the queue's
513 * internal pointers. This routine returns the number of entries that were
514 * consumed by the HBA.
517 lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq)
519 /* sanity check on queue memory */
520 if (unlikely(!hq) || unlikely(!dq))
523 if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ))
525 hq->hba_index = ((hq->hba_index + 1) % hq->entry_count);
526 dq->hba_index = ((dq->hba_index + 1) % dq->entry_count);
531 * lpfc_cmd_iocb - Get next command iocb entry in the ring
532 * @phba: Pointer to HBA context object.
533 * @pring: Pointer to driver SLI ring object.
535 * This function returns pointer to next command iocb entry
536 * in the command ring. The caller must hold hbalock to prevent
537 * other threads consume the next command iocb.
538 * SLI-2/SLI-3 provide different sized iocbs.
540 static inline IOCB_t *
541 lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
543 return (IOCB_t *) (((char *) pring->sli.sli3.cmdringaddr) +
544 pring->sli.sli3.cmdidx * phba->iocb_cmd_size);
548 * lpfc_resp_iocb - Get next response iocb entry in the ring
549 * @phba: Pointer to HBA context object.
550 * @pring: Pointer to driver SLI ring object.
552 * This function returns pointer to next response iocb entry
553 * in the response ring. The caller must hold hbalock to make sure
554 * that no other thread consume the next response iocb.
555 * SLI-2/SLI-3 provide different sized iocbs.
557 static inline IOCB_t *
558 lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
560 return (IOCB_t *) (((char *) pring->sli.sli3.rspringaddr) +
561 pring->sli.sli3.rspidx * phba->iocb_rsp_size);
565 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
566 * @phba: Pointer to HBA context object.
568 * This function is called with hbalock held. This function
569 * allocates a new driver iocb object from the iocb pool. If the
570 * allocation is successful, it returns pointer to the newly
571 * allocated iocb object else it returns NULL.
574 __lpfc_sli_get_iocbq(struct lpfc_hba *phba)
576 struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
577 struct lpfc_iocbq * iocbq = NULL;
579 list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
582 if (phba->iocb_cnt > phba->iocb_max)
583 phba->iocb_max = phba->iocb_cnt;
588 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
589 * @phba: Pointer to HBA context object.
590 * @xritag: XRI value.
592 * This function clears the sglq pointer from the array of acive
593 * sglq's. The xritag that is passed in is used to index into the
594 * array. Before the xritag can be used it needs to be adjusted
595 * by subtracting the xribase.
597 * Returns sglq ponter = success, NULL = Failure.
599 static struct lpfc_sglq *
600 __lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
602 struct lpfc_sglq *sglq;
604 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
605 phba->sli4_hba.lpfc_sglq_active_list[xritag] = NULL;
610 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
611 * @phba: Pointer to HBA context object.
612 * @xritag: XRI value.
614 * This function returns the sglq pointer from the array of acive
615 * sglq's. The xritag that is passed in is used to index into the
616 * array. Before the xritag can be used it needs to be adjusted
617 * by subtracting the xribase.
619 * Returns sglq ponter = success, NULL = Failure.
622 __lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
624 struct lpfc_sglq *sglq;
626 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
631 * lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
632 * @phba: Pointer to HBA context object.
633 * @xritag: xri used in this exchange.
634 * @rrq: The RRQ to be cleared.
638 lpfc_clr_rrq_active(struct lpfc_hba *phba,
640 struct lpfc_node_rrq *rrq)
642 struct lpfc_nodelist *ndlp = NULL;
644 if ((rrq->vport) && NLP_CHK_NODE_ACT(rrq->ndlp))
645 ndlp = lpfc_findnode_did(rrq->vport, rrq->nlp_DID);
647 /* The target DID could have been swapped (cable swap)
648 * we should use the ndlp from the findnode if it is
651 if ((!ndlp) && rrq->ndlp)
657 if (test_and_clear_bit(xritag, ndlp->active_rrqs_xri_bitmap)) {
660 rrq->rrq_stop_time = 0;
663 mempool_free(rrq, phba->rrq_pool);
667 * lpfc_handle_rrq_active - Checks if RRQ has waithed RATOV.
668 * @phba: Pointer to HBA context object.
670 * This function is called with hbalock held. This function
671 * Checks if stop_time (ratov from setting rrq active) has
672 * been reached, if it has and the send_rrq flag is set then
673 * it will call lpfc_send_rrq. If the send_rrq flag is not set
674 * then it will just call the routine to clear the rrq and
675 * free the rrq resource.
676 * The timer is set to the next rrq that is going to expire before
677 * leaving the routine.
681 lpfc_handle_rrq_active(struct lpfc_hba *phba)
683 struct lpfc_node_rrq *rrq;
684 struct lpfc_node_rrq *nextrrq;
685 unsigned long next_time;
686 unsigned long iflags;
689 spin_lock_irqsave(&phba->hbalock, iflags);
690 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
691 next_time = jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
692 list_for_each_entry_safe(rrq, nextrrq,
693 &phba->active_rrq_list, list) {
694 if (time_after(jiffies, rrq->rrq_stop_time))
695 list_move(&rrq->list, &send_rrq);
696 else if (time_before(rrq->rrq_stop_time, next_time))
697 next_time = rrq->rrq_stop_time;
699 spin_unlock_irqrestore(&phba->hbalock, iflags);
700 if ((!list_empty(&phba->active_rrq_list)) &&
701 (!(phba->pport->load_flag & FC_UNLOADING)))
702 mod_timer(&phba->rrq_tmr, next_time);
703 list_for_each_entry_safe(rrq, nextrrq, &send_rrq, list) {
704 list_del(&rrq->list);
706 /* this call will free the rrq */
707 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
708 else if (lpfc_send_rrq(phba, rrq)) {
709 /* if we send the rrq then the completion handler
710 * will clear the bit in the xribitmap.
712 lpfc_clr_rrq_active(phba, rrq->xritag,
719 * lpfc_get_active_rrq - Get the active RRQ for this exchange.
720 * @vport: Pointer to vport context object.
721 * @xri: The xri used in the exchange.
722 * @did: The targets DID for this exchange.
724 * returns NULL = rrq not found in the phba->active_rrq_list.
725 * rrq = rrq for this xri and target.
727 struct lpfc_node_rrq *
728 lpfc_get_active_rrq(struct lpfc_vport *vport, uint16_t xri, uint32_t did)
730 struct lpfc_hba *phba = vport->phba;
731 struct lpfc_node_rrq *rrq;
732 struct lpfc_node_rrq *nextrrq;
733 unsigned long iflags;
735 if (phba->sli_rev != LPFC_SLI_REV4)
737 spin_lock_irqsave(&phba->hbalock, iflags);
738 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) {
739 if (rrq->vport == vport && rrq->xritag == xri &&
740 rrq->nlp_DID == did){
741 list_del(&rrq->list);
742 spin_unlock_irqrestore(&phba->hbalock, iflags);
746 spin_unlock_irqrestore(&phba->hbalock, iflags);
751 * lpfc_cleanup_vports_rrqs - Remove and clear the active RRQ for this vport.
752 * @vport: Pointer to vport context object.
753 * @ndlp: Pointer to the lpfc_node_list structure.
754 * If ndlp is NULL Remove all active RRQs for this vport from the
755 * phba->active_rrq_list and clear the rrq.
756 * If ndlp is not NULL then only remove rrqs for this vport & this ndlp.
759 lpfc_cleanup_vports_rrqs(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
762 struct lpfc_hba *phba = vport->phba;
763 struct lpfc_node_rrq *rrq;
764 struct lpfc_node_rrq *nextrrq;
765 unsigned long iflags;
768 if (phba->sli_rev != LPFC_SLI_REV4)
771 lpfc_sli4_vport_delete_els_xri_aborted(vport);
772 lpfc_sli4_vport_delete_fcp_xri_aborted(vport);
774 spin_lock_irqsave(&phba->hbalock, iflags);
775 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list)
776 if ((rrq->vport == vport) && (!ndlp || rrq->ndlp == ndlp))
777 list_move(&rrq->list, &rrq_list);
778 spin_unlock_irqrestore(&phba->hbalock, iflags);
780 list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
781 list_del(&rrq->list);
782 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
787 * lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
788 * @phba: Pointer to HBA context object.
789 * @ndlp: Targets nodelist pointer for this exchange.
790 * @xritag the xri in the bitmap to test.
792 * This function is called with hbalock held. This function
793 * returns 0 = rrq not active for this xri
794 * 1 = rrq is valid for this xri.
797 lpfc_test_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
802 if (!ndlp->active_rrqs_xri_bitmap)
804 if (test_bit(xritag, ndlp->active_rrqs_xri_bitmap))
811 * lpfc_set_rrq_active - set RRQ active bit in xri_bitmap.
812 * @phba: Pointer to HBA context object.
813 * @ndlp: nodelist pointer for this target.
814 * @xritag: xri used in this exchange.
815 * @rxid: Remote Exchange ID.
816 * @send_rrq: Flag used to determine if we should send rrq els cmd.
818 * This function takes the hbalock.
819 * The active bit is always set in the active rrq xri_bitmap even
820 * if there is no slot avaiable for the other rrq information.
822 * returns 0 rrq actived for this xri
823 * < 0 No memory or invalid ndlp.
826 lpfc_set_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
827 uint16_t xritag, uint16_t rxid, uint16_t send_rrq)
829 unsigned long iflags;
830 struct lpfc_node_rrq *rrq;
836 if (!phba->cfg_enable_rrq)
839 spin_lock_irqsave(&phba->hbalock, iflags);
840 if (phba->pport->load_flag & FC_UNLOADING) {
841 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
846 * set the active bit even if there is no mem available.
848 if (NLP_CHK_FREE_REQ(ndlp))
851 if (ndlp->vport && (ndlp->vport->load_flag & FC_UNLOADING))
854 if (!ndlp->active_rrqs_xri_bitmap)
857 if (test_and_set_bit(xritag, ndlp->active_rrqs_xri_bitmap))
860 spin_unlock_irqrestore(&phba->hbalock, iflags);
861 rrq = mempool_alloc(phba->rrq_pool, GFP_KERNEL);
863 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
864 "3155 Unable to allocate RRQ xri:0x%x rxid:0x%x"
865 " DID:0x%x Send:%d\n",
866 xritag, rxid, ndlp->nlp_DID, send_rrq);
869 if (phba->cfg_enable_rrq == 1)
870 rrq->send_rrq = send_rrq;
873 rrq->xritag = xritag;
874 rrq->rrq_stop_time = jiffies +
875 msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
877 rrq->nlp_DID = ndlp->nlp_DID;
878 rrq->vport = ndlp->vport;
880 spin_lock_irqsave(&phba->hbalock, iflags);
881 empty = list_empty(&phba->active_rrq_list);
882 list_add_tail(&rrq->list, &phba->active_rrq_list);
883 phba->hba_flag |= HBA_RRQ_ACTIVE;
885 lpfc_worker_wake_up(phba);
886 spin_unlock_irqrestore(&phba->hbalock, iflags);
889 spin_unlock_irqrestore(&phba->hbalock, iflags);
890 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
891 "2921 Can't set rrq active xri:0x%x rxid:0x%x"
892 " DID:0x%x Send:%d\n",
893 xritag, rxid, ndlp->nlp_DID, send_rrq);
898 * __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool
899 * @phba: Pointer to HBA context object.
900 * @piocb: Pointer to the iocbq.
902 * This function is called with the ring lock held. This function
903 * gets a new driver sglq object from the sglq list. If the
904 * list is not empty then it is successful, it returns pointer to the newly
905 * allocated sglq object else it returns NULL.
907 static struct lpfc_sglq *
908 __lpfc_sli_get_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
910 struct list_head *lpfc_sgl_list = &phba->sli4_hba.lpfc_sgl_list;
911 struct lpfc_sglq *sglq = NULL;
912 struct lpfc_sglq *start_sglq = NULL;
913 struct lpfc_scsi_buf *lpfc_cmd;
914 struct lpfc_nodelist *ndlp;
917 if (piocbq->iocb_flag & LPFC_IO_FCP) {
918 lpfc_cmd = (struct lpfc_scsi_buf *) piocbq->context1;
919 ndlp = lpfc_cmd->rdata->pnode;
920 } else if ((piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) &&
921 !(piocbq->iocb_flag & LPFC_IO_LIBDFC))
922 ndlp = piocbq->context_un.ndlp;
923 else if (piocbq->iocb_flag & LPFC_IO_LIBDFC)
924 ndlp = piocbq->context_un.ndlp;
926 ndlp = piocbq->context1;
928 list_remove_head(lpfc_sgl_list, sglq, struct lpfc_sglq, list);
933 if (lpfc_test_rrq_active(phba, ndlp, sglq->sli4_lxritag)) {
934 /* This xri has an rrq outstanding for this DID.
935 * put it back in the list and get another xri.
937 list_add_tail(&sglq->list, lpfc_sgl_list);
939 list_remove_head(lpfc_sgl_list, sglq,
940 struct lpfc_sglq, list);
941 if (sglq == start_sglq) {
949 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
950 sglq->state = SGL_ALLOCATED;
956 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
957 * @phba: Pointer to HBA context object.
959 * This function is called with no lock held. This function
960 * allocates a new driver iocb object from the iocb pool. If the
961 * allocation is successful, it returns pointer to the newly
962 * allocated iocb object else it returns NULL.
965 lpfc_sli_get_iocbq(struct lpfc_hba *phba)
967 struct lpfc_iocbq * iocbq = NULL;
968 unsigned long iflags;
970 spin_lock_irqsave(&phba->hbalock, iflags);
971 iocbq = __lpfc_sli_get_iocbq(phba);
972 spin_unlock_irqrestore(&phba->hbalock, iflags);
977 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
978 * @phba: Pointer to HBA context object.
979 * @iocbq: Pointer to driver iocb object.
981 * This function is called with hbalock held to release driver
982 * iocb object to the iocb pool. The iotag in the iocb object
983 * does not change for each use of the iocb object. This function
984 * clears all other fields of the iocb object when it is freed.
985 * The sqlq structure that holds the xritag and phys and virtual
986 * mappings for the scatter gather list is retrieved from the
987 * active array of sglq. The get of the sglq pointer also clears
988 * the entry in the array. If the status of the IO indiactes that
989 * this IO was aborted then the sglq entry it put on the
990 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
991 * IO has good status or fails for any other reason then the sglq
992 * entry is added to the free list (lpfc_sgl_list).
995 __lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
997 struct lpfc_sglq *sglq;
998 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
999 unsigned long iflag = 0;
1000 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
1002 if (iocbq->sli4_xritag == NO_XRI)
1005 sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_lxritag);
1009 if ((iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) &&
1010 (sglq->state != SGL_XRI_ABORTED)) {
1011 spin_lock_irqsave(&phba->sli4_hba.abts_sgl_list_lock,
1013 list_add(&sglq->list,
1014 &phba->sli4_hba.lpfc_abts_els_sgl_list);
1015 spin_unlock_irqrestore(
1016 &phba->sli4_hba.abts_sgl_list_lock, iflag);
1018 spin_lock_irqsave(&pring->ring_lock, iflag);
1019 sglq->state = SGL_FREED;
1021 list_add_tail(&sglq->list,
1022 &phba->sli4_hba.lpfc_sgl_list);
1023 spin_unlock_irqrestore(&pring->ring_lock, iflag);
1025 /* Check if TXQ queue needs to be serviced */
1026 if (!list_empty(&pring->txq))
1027 lpfc_worker_wake_up(phba);
1033 * Clean all volatile data fields, preserve iotag and node struct.
1035 memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1036 iocbq->sli4_lxritag = NO_XRI;
1037 iocbq->sli4_xritag = NO_XRI;
1038 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1043 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
1044 * @phba: Pointer to HBA context object.
1045 * @iocbq: Pointer to driver iocb object.
1047 * This function is called with hbalock held to release driver
1048 * iocb object to the iocb pool. The iotag in the iocb object
1049 * does not change for each use of the iocb object. This function
1050 * clears all other fields of the iocb object when it is freed.
1053 __lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1055 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1059 * Clean all volatile data fields, preserve iotag and node struct.
1061 memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1062 iocbq->sli4_xritag = NO_XRI;
1063 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1067 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
1068 * @phba: Pointer to HBA context object.
1069 * @iocbq: Pointer to driver iocb object.
1071 * This function is called with hbalock held to release driver
1072 * iocb object to the iocb pool. The iotag in the iocb object
1073 * does not change for each use of the iocb object. This function
1074 * clears all other fields of the iocb object when it is freed.
1077 __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1079 phba->__lpfc_sli_release_iocbq(phba, iocbq);
1084 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
1085 * @phba: Pointer to HBA context object.
1086 * @iocbq: Pointer to driver iocb object.
1088 * This function is called with no lock held to release the iocb to
1092 lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1094 unsigned long iflags;
1097 * Clean all volatile data fields, preserve iotag and node struct.
1099 spin_lock_irqsave(&phba->hbalock, iflags);
1100 __lpfc_sli_release_iocbq(phba, iocbq);
1101 spin_unlock_irqrestore(&phba->hbalock, iflags);
1105 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
1106 * @phba: Pointer to HBA context object.
1107 * @iocblist: List of IOCBs.
1108 * @ulpstatus: ULP status in IOCB command field.
1109 * @ulpWord4: ULP word-4 in IOCB command field.
1111 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
1112 * on the list by invoking the complete callback function associated with the
1113 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
1117 lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
1118 uint32_t ulpstatus, uint32_t ulpWord4)
1120 struct lpfc_iocbq *piocb;
1122 while (!list_empty(iocblist)) {
1123 list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
1124 if (!piocb->iocb_cmpl)
1125 lpfc_sli_release_iocbq(phba, piocb);
1127 piocb->iocb.ulpStatus = ulpstatus;
1128 piocb->iocb.un.ulpWord[4] = ulpWord4;
1129 (piocb->iocb_cmpl) (phba, piocb, piocb);
1136 * lpfc_sli_iocb_cmd_type - Get the iocb type
1137 * @iocb_cmnd: iocb command code.
1139 * This function is called by ring event handler function to get the iocb type.
1140 * This function translates the iocb command to an iocb command type used to
1141 * decide the final disposition of each completed IOCB.
1142 * The function returns
1143 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
1144 * LPFC_SOL_IOCB if it is a solicited iocb completion
1145 * LPFC_ABORT_IOCB if it is an abort iocb
1146 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
1148 * The caller is not required to hold any lock.
1150 static lpfc_iocb_type
1151 lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
1153 lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
1155 if (iocb_cmnd > CMD_MAX_IOCB_CMD)
1158 switch (iocb_cmnd) {
1159 case CMD_XMIT_SEQUENCE_CR:
1160 case CMD_XMIT_SEQUENCE_CX:
1161 case CMD_XMIT_BCAST_CN:
1162 case CMD_XMIT_BCAST_CX:
1163 case CMD_ELS_REQUEST_CR:
1164 case CMD_ELS_REQUEST_CX:
1165 case CMD_CREATE_XRI_CR:
1166 case CMD_CREATE_XRI_CX:
1167 case CMD_GET_RPI_CN:
1168 case CMD_XMIT_ELS_RSP_CX:
1169 case CMD_GET_RPI_CR:
1170 case CMD_FCP_IWRITE_CR:
1171 case CMD_FCP_IWRITE_CX:
1172 case CMD_FCP_IREAD_CR:
1173 case CMD_FCP_IREAD_CX:
1174 case CMD_FCP_ICMND_CR:
1175 case CMD_FCP_ICMND_CX:
1176 case CMD_FCP_TSEND_CX:
1177 case CMD_FCP_TRSP_CX:
1178 case CMD_FCP_TRECEIVE_CX:
1179 case CMD_FCP_AUTO_TRSP_CX:
1180 case CMD_ADAPTER_MSG:
1181 case CMD_ADAPTER_DUMP:
1182 case CMD_XMIT_SEQUENCE64_CR:
1183 case CMD_XMIT_SEQUENCE64_CX:
1184 case CMD_XMIT_BCAST64_CN:
1185 case CMD_XMIT_BCAST64_CX:
1186 case CMD_ELS_REQUEST64_CR:
1187 case CMD_ELS_REQUEST64_CX:
1188 case CMD_FCP_IWRITE64_CR:
1189 case CMD_FCP_IWRITE64_CX:
1190 case CMD_FCP_IREAD64_CR:
1191 case CMD_FCP_IREAD64_CX:
1192 case CMD_FCP_ICMND64_CR:
1193 case CMD_FCP_ICMND64_CX:
1194 case CMD_FCP_TSEND64_CX:
1195 case CMD_FCP_TRSP64_CX:
1196 case CMD_FCP_TRECEIVE64_CX:
1197 case CMD_GEN_REQUEST64_CR:
1198 case CMD_GEN_REQUEST64_CX:
1199 case CMD_XMIT_ELS_RSP64_CX:
1200 case DSSCMD_IWRITE64_CR:
1201 case DSSCMD_IWRITE64_CX:
1202 case DSSCMD_IREAD64_CR:
1203 case DSSCMD_IREAD64_CX:
1204 type = LPFC_SOL_IOCB;
1206 case CMD_ABORT_XRI_CN:
1207 case CMD_ABORT_XRI_CX:
1208 case CMD_CLOSE_XRI_CN:
1209 case CMD_CLOSE_XRI_CX:
1210 case CMD_XRI_ABORTED_CX:
1211 case CMD_ABORT_MXRI64_CN:
1212 case CMD_XMIT_BLS_RSP64_CX:
1213 type = LPFC_ABORT_IOCB;
1215 case CMD_RCV_SEQUENCE_CX:
1216 case CMD_RCV_ELS_REQ_CX:
1217 case CMD_RCV_SEQUENCE64_CX:
1218 case CMD_RCV_ELS_REQ64_CX:
1219 case CMD_ASYNC_STATUS:
1220 case CMD_IOCB_RCV_SEQ64_CX:
1221 case CMD_IOCB_RCV_ELS64_CX:
1222 case CMD_IOCB_RCV_CONT64_CX:
1223 case CMD_IOCB_RET_XRI64_CX:
1224 type = LPFC_UNSOL_IOCB;
1226 case CMD_IOCB_XMIT_MSEQ64_CR:
1227 case CMD_IOCB_XMIT_MSEQ64_CX:
1228 case CMD_IOCB_RCV_SEQ_LIST64_CX:
1229 case CMD_IOCB_RCV_ELS_LIST64_CX:
1230 case CMD_IOCB_CLOSE_EXTENDED_CN:
1231 case CMD_IOCB_ABORT_EXTENDED_CN:
1232 case CMD_IOCB_RET_HBQE64_CN:
1233 case CMD_IOCB_FCP_IBIDIR64_CR:
1234 case CMD_IOCB_FCP_IBIDIR64_CX:
1235 case CMD_IOCB_FCP_ITASKMGT64_CX:
1236 case CMD_IOCB_LOGENTRY_CN:
1237 case CMD_IOCB_LOGENTRY_ASYNC_CN:
1238 printk("%s - Unhandled SLI-3 Command x%x\n",
1239 __func__, iocb_cmnd);
1240 type = LPFC_UNKNOWN_IOCB;
1243 type = LPFC_UNKNOWN_IOCB;
1251 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
1252 * @phba: Pointer to HBA context object.
1254 * This function is called from SLI initialization code
1255 * to configure every ring of the HBA's SLI interface. The
1256 * caller is not required to hold any lock. This function issues
1257 * a config_ring mailbox command for each ring.
1258 * This function returns zero if successful else returns a negative
1262 lpfc_sli_ring_map(struct lpfc_hba *phba)
1264 struct lpfc_sli *psli = &phba->sli;
1269 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1273 phba->link_state = LPFC_INIT_MBX_CMDS;
1274 for (i = 0; i < psli->num_rings; i++) {
1275 lpfc_config_ring(phba, i, pmb);
1276 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
1277 if (rc != MBX_SUCCESS) {
1278 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1279 "0446 Adapter failed to init (%d), "
1280 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
1282 rc, pmbox->mbxCommand,
1283 pmbox->mbxStatus, i);
1284 phba->link_state = LPFC_HBA_ERROR;
1289 mempool_free(pmb, phba->mbox_mem_pool);
1294 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
1295 * @phba: Pointer to HBA context object.
1296 * @pring: Pointer to driver SLI ring object.
1297 * @piocb: Pointer to the driver iocb object.
1299 * This function is called with hbalock held. The function adds the
1300 * new iocb to txcmplq of the given ring. This function always returns
1301 * 0. If this function is called for ELS ring, this function checks if
1302 * there is a vport associated with the ELS command. This function also
1303 * starts els_tmofunc timer if this is an ELS command.
1306 lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1307 struct lpfc_iocbq *piocb)
1309 list_add_tail(&piocb->list, &pring->txcmplq);
1310 piocb->iocb_flag |= LPFC_IO_ON_TXCMPLQ;
1312 if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
1313 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
1314 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN) &&
1315 (!(piocb->vport->load_flag & FC_UNLOADING))) {
1319 mod_timer(&piocb->vport->els_tmofunc,
1321 msecs_to_jiffies(1000 * (phba->fc_ratov << 1)));
1329 * lpfc_sli_ringtx_get - Get first element of the txq
1330 * @phba: Pointer to HBA context object.
1331 * @pring: Pointer to driver SLI ring object.
1333 * This function is called with hbalock held to get next
1334 * iocb in txq of the given ring. If there is any iocb in
1335 * the txq, the function returns first iocb in the list after
1336 * removing the iocb from the list, else it returns NULL.
1339 lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1341 struct lpfc_iocbq *cmd_iocb;
1343 list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
1348 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
1349 * @phba: Pointer to HBA context object.
1350 * @pring: Pointer to driver SLI ring object.
1352 * This function is called with hbalock held and the caller must post the
1353 * iocb without releasing the lock. If the caller releases the lock,
1354 * iocb slot returned by the function is not guaranteed to be available.
1355 * The function returns pointer to the next available iocb slot if there
1356 * is available slot in the ring, else it returns NULL.
1357 * If the get index of the ring is ahead of the put index, the function
1358 * will post an error attention event to the worker thread to take the
1359 * HBA to offline state.
1362 lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1364 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
1365 uint32_t max_cmd_idx = pring->sli.sli3.numCiocb;
1366 if ((pring->sli.sli3.next_cmdidx == pring->sli.sli3.cmdidx) &&
1367 (++pring->sli.sli3.next_cmdidx >= max_cmd_idx))
1368 pring->sli.sli3.next_cmdidx = 0;
1370 if (unlikely(pring->sli.sli3.local_getidx ==
1371 pring->sli.sli3.next_cmdidx)) {
1373 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
1375 if (unlikely(pring->sli.sli3.local_getidx >= max_cmd_idx)) {
1376 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1377 "0315 Ring %d issue: portCmdGet %d "
1378 "is bigger than cmd ring %d\n",
1380 pring->sli.sli3.local_getidx,
1383 phba->link_state = LPFC_HBA_ERROR;
1385 * All error attention handlers are posted to
1388 phba->work_ha |= HA_ERATT;
1389 phba->work_hs = HS_FFER3;
1391 lpfc_worker_wake_up(phba);
1396 if (pring->sli.sli3.local_getidx == pring->sli.sli3.next_cmdidx)
1400 return lpfc_cmd_iocb(phba, pring);
1404 * lpfc_sli_next_iotag - Get an iotag for the iocb
1405 * @phba: Pointer to HBA context object.
1406 * @iocbq: Pointer to driver iocb object.
1408 * This function gets an iotag for the iocb. If there is no unused iotag and
1409 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
1410 * array and assigns a new iotag.
1411 * The function returns the allocated iotag if successful, else returns zero.
1412 * Zero is not a valid iotag.
1413 * The caller is not required to hold any lock.
1416 lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1418 struct lpfc_iocbq **new_arr;
1419 struct lpfc_iocbq **old_arr;
1421 struct lpfc_sli *psli = &phba->sli;
1424 spin_lock_irq(&phba->hbalock);
1425 iotag = psli->last_iotag;
1426 if(++iotag < psli->iocbq_lookup_len) {
1427 psli->last_iotag = iotag;
1428 psli->iocbq_lookup[iotag] = iocbq;
1429 spin_unlock_irq(&phba->hbalock);
1430 iocbq->iotag = iotag;
1432 } else if (psli->iocbq_lookup_len < (0xffff
1433 - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
1434 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
1435 spin_unlock_irq(&phba->hbalock);
1436 new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *),
1439 spin_lock_irq(&phba->hbalock);
1440 old_arr = psli->iocbq_lookup;
1441 if (new_len <= psli->iocbq_lookup_len) {
1442 /* highly unprobable case */
1444 iotag = psli->last_iotag;
1445 if(++iotag < psli->iocbq_lookup_len) {
1446 psli->last_iotag = iotag;
1447 psli->iocbq_lookup[iotag] = iocbq;
1448 spin_unlock_irq(&phba->hbalock);
1449 iocbq->iotag = iotag;
1452 spin_unlock_irq(&phba->hbalock);
1455 if (psli->iocbq_lookup)
1456 memcpy(new_arr, old_arr,
1457 ((psli->last_iotag + 1) *
1458 sizeof (struct lpfc_iocbq *)));
1459 psli->iocbq_lookup = new_arr;
1460 psli->iocbq_lookup_len = new_len;
1461 psli->last_iotag = iotag;
1462 psli->iocbq_lookup[iotag] = iocbq;
1463 spin_unlock_irq(&phba->hbalock);
1464 iocbq->iotag = iotag;
1469 spin_unlock_irq(&phba->hbalock);
1471 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
1472 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1479 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
1480 * @phba: Pointer to HBA context object.
1481 * @pring: Pointer to driver SLI ring object.
1482 * @iocb: Pointer to iocb slot in the ring.
1483 * @nextiocb: Pointer to driver iocb object which need to be
1484 * posted to firmware.
1486 * This function is called with hbalock held to post a new iocb to
1487 * the firmware. This function copies the new iocb to ring iocb slot and
1488 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1489 * a completion call back for this iocb else the function will free the
1493 lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1494 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
1499 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
1502 if (pring->ringno == LPFC_ELS_RING) {
1503 lpfc_debugfs_slow_ring_trc(phba,
1504 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1505 *(((uint32_t *) &nextiocb->iocb) + 4),
1506 *(((uint32_t *) &nextiocb->iocb) + 6),
1507 *(((uint32_t *) &nextiocb->iocb) + 7));
1511 * Issue iocb command to adapter
1513 lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
1515 pring->stats.iocb_cmd++;
1518 * If there is no completion routine to call, we can release the
1519 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1520 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1522 if (nextiocb->iocb_cmpl)
1523 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
1525 __lpfc_sli_release_iocbq(phba, nextiocb);
1528 * Let the HBA know what IOCB slot will be the next one the
1529 * driver will put a command into.
1531 pring->sli.sli3.cmdidx = pring->sli.sli3.next_cmdidx;
1532 writel(pring->sli.sli3.cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
1536 * lpfc_sli_update_full_ring - Update the chip attention register
1537 * @phba: Pointer to HBA context object.
1538 * @pring: Pointer to driver SLI ring object.
1540 * The caller is not required to hold any lock for calling this function.
1541 * This function updates the chip attention bits for the ring to inform firmware
1542 * that there are pending work to be done for this ring and requests an
1543 * interrupt when there is space available in the ring. This function is
1544 * called when the driver is unable to post more iocbs to the ring due
1545 * to unavailability of space in the ring.
1548 lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1550 int ringno = pring->ringno;
1552 pring->flag |= LPFC_CALL_RING_AVAILABLE;
1557 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1558 * The HBA will tell us when an IOCB entry is available.
1560 writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
1561 readl(phba->CAregaddr); /* flush */
1563 pring->stats.iocb_cmd_full++;
1567 * lpfc_sli_update_ring - Update chip attention register
1568 * @phba: Pointer to HBA context object.
1569 * @pring: Pointer to driver SLI ring object.
1571 * This function updates the chip attention register bit for the
1572 * given ring to inform HBA that there is more work to be done
1573 * in this ring. The caller is not required to hold any lock.
1576 lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1578 int ringno = pring->ringno;
1581 * Tell the HBA that there is work to do in this ring.
1583 if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
1585 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
1586 readl(phba->CAregaddr); /* flush */
1591 * lpfc_sli_resume_iocb - Process iocbs in the txq
1592 * @phba: Pointer to HBA context object.
1593 * @pring: Pointer to driver SLI ring object.
1595 * This function is called with hbalock held to post pending iocbs
1596 * in the txq to the firmware. This function is called when driver
1597 * detects space available in the ring.
1600 lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1603 struct lpfc_iocbq *nextiocb;
1607 * (a) there is anything on the txq to send
1609 * (c) link attention events can be processed (fcp ring only)
1610 * (d) IOCB processing is not blocked by the outstanding mbox command.
1613 if (lpfc_is_link_up(phba) &&
1614 (!list_empty(&pring->txq)) &&
1615 (pring->ringno != phba->sli.fcp_ring ||
1616 phba->sli.sli_flag & LPFC_PROCESS_LA)) {
1618 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
1619 (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
1620 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
1623 lpfc_sli_update_ring(phba, pring);
1625 lpfc_sli_update_full_ring(phba, pring);
1632 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
1633 * @phba: Pointer to HBA context object.
1634 * @hbqno: HBQ number.
1636 * This function is called with hbalock held to get the next
1637 * available slot for the given HBQ. If there is free slot
1638 * available for the HBQ it will return pointer to the next available
1639 * HBQ entry else it will return NULL.
1641 static struct lpfc_hbq_entry *
1642 lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
1644 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1646 if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
1647 ++hbqp->next_hbqPutIdx >= hbqp->entry_count)
1648 hbqp->next_hbqPutIdx = 0;
1650 if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
1651 uint32_t raw_index = phba->hbq_get[hbqno];
1652 uint32_t getidx = le32_to_cpu(raw_index);
1654 hbqp->local_hbqGetIdx = getidx;
1656 if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
1657 lpfc_printf_log(phba, KERN_ERR,
1658 LOG_SLI | LOG_VPORT,
1659 "1802 HBQ %d: local_hbqGetIdx "
1660 "%u is > than hbqp->entry_count %u\n",
1661 hbqno, hbqp->local_hbqGetIdx,
1664 phba->link_state = LPFC_HBA_ERROR;
1668 if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
1672 return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
1677 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
1678 * @phba: Pointer to HBA context object.
1680 * This function is called with no lock held to free all the
1681 * hbq buffers while uninitializing the SLI interface. It also
1682 * frees the HBQ buffers returned by the firmware but not yet
1683 * processed by the upper layers.
1686 lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
1688 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
1689 struct hbq_dmabuf *hbq_buf;
1690 unsigned long flags;
1694 hbq_count = lpfc_sli_hbq_count();
1695 /* Return all memory used by all HBQs */
1696 spin_lock_irqsave(&phba->hbalock, flags);
1697 for (i = 0; i < hbq_count; ++i) {
1698 list_for_each_entry_safe(dmabuf, next_dmabuf,
1699 &phba->hbqs[i].hbq_buffer_list, list) {
1700 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1701 list_del(&hbq_buf->dbuf.list);
1702 (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
1704 phba->hbqs[i].buffer_count = 0;
1706 /* Return all HBQ buffer that are in-fly */
1707 list_for_each_entry_safe(dmabuf, next_dmabuf, &phba->rb_pend_list,
1709 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1710 list_del(&hbq_buf->dbuf.list);
1711 if (hbq_buf->tag == -1) {
1712 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1715 hbqno = hbq_buf->tag >> 16;
1716 if (hbqno >= LPFC_MAX_HBQS)
1717 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1720 (phba->hbqs[hbqno].hbq_free_buffer)(phba,
1725 /* Mark the HBQs not in use */
1726 phba->hbq_in_use = 0;
1727 spin_unlock_irqrestore(&phba->hbalock, flags);
1731 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
1732 * @phba: Pointer to HBA context object.
1733 * @hbqno: HBQ number.
1734 * @hbq_buf: Pointer to HBQ buffer.
1736 * This function is called with the hbalock held to post a
1737 * hbq buffer to the firmware. If the function finds an empty
1738 * slot in the HBQ, it will post the buffer. The function will return
1739 * pointer to the hbq entry if it successfully post the buffer
1740 * else it will return NULL.
1743 lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
1744 struct hbq_dmabuf *hbq_buf)
1746 return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
1750 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
1751 * @phba: Pointer to HBA context object.
1752 * @hbqno: HBQ number.
1753 * @hbq_buf: Pointer to HBQ buffer.
1755 * This function is called with the hbalock held to post a hbq buffer to the
1756 * firmware. If the function finds an empty slot in the HBQ, it will post the
1757 * buffer and place it on the hbq_buffer_list. The function will return zero if
1758 * it successfully post the buffer else it will return an error.
1761 lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
1762 struct hbq_dmabuf *hbq_buf)
1764 struct lpfc_hbq_entry *hbqe;
1765 dma_addr_t physaddr = hbq_buf->dbuf.phys;
1767 /* Get next HBQ entry slot to use */
1768 hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
1770 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1772 hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
1773 hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
1774 hbqe->bde.tus.f.bdeSize = hbq_buf->size;
1775 hbqe->bde.tus.f.bdeFlags = 0;
1776 hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
1777 hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
1779 hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
1780 writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
1782 readl(phba->hbq_put + hbqno);
1783 list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
1790 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
1791 * @phba: Pointer to HBA context object.
1792 * @hbqno: HBQ number.
1793 * @hbq_buf: Pointer to HBQ buffer.
1795 * This function is called with the hbalock held to post an RQE to the SLI4
1796 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
1797 * the hbq_buffer_list and return zero, otherwise it will return an error.
1800 lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
1801 struct hbq_dmabuf *hbq_buf)
1804 struct lpfc_rqe hrqe;
1805 struct lpfc_rqe drqe;
1807 hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
1808 hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
1809 drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
1810 drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
1811 rc = lpfc_sli4_rq_put(phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
1816 list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
1820 /* HBQ for ELS and CT traffic. */
1821 static struct lpfc_hbq_init lpfc_els_hbq = {
1826 .ring_mask = (1 << LPFC_ELS_RING),
1832 /* HBQ for the extra ring if needed */
1833 static struct lpfc_hbq_init lpfc_extra_hbq = {
1838 .ring_mask = (1 << LPFC_EXTRA_RING),
1845 struct lpfc_hbq_init *lpfc_hbq_defs[] = {
1851 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
1852 * @phba: Pointer to HBA context object.
1853 * @hbqno: HBQ number.
1854 * @count: Number of HBQ buffers to be posted.
1856 * This function is called with no lock held to post more hbq buffers to the
1857 * given HBQ. The function returns the number of HBQ buffers successfully
1861 lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
1863 uint32_t i, posted = 0;
1864 unsigned long flags;
1865 struct hbq_dmabuf *hbq_buffer;
1866 LIST_HEAD(hbq_buf_list);
1867 if (!phba->hbqs[hbqno].hbq_alloc_buffer)
1870 if ((phba->hbqs[hbqno].buffer_count + count) >
1871 lpfc_hbq_defs[hbqno]->entry_count)
1872 count = lpfc_hbq_defs[hbqno]->entry_count -
1873 phba->hbqs[hbqno].buffer_count;
1876 /* Allocate HBQ entries */
1877 for (i = 0; i < count; i++) {
1878 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
1881 list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
1883 /* Check whether HBQ is still in use */
1884 spin_lock_irqsave(&phba->hbalock, flags);
1885 if (!phba->hbq_in_use)
1887 while (!list_empty(&hbq_buf_list)) {
1888 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1890 hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
1892 if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
1893 phba->hbqs[hbqno].buffer_count++;
1896 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1898 spin_unlock_irqrestore(&phba->hbalock, flags);
1901 spin_unlock_irqrestore(&phba->hbalock, flags);
1902 while (!list_empty(&hbq_buf_list)) {
1903 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1905 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1911 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
1912 * @phba: Pointer to HBA context object.
1915 * This function posts more buffers to the HBQ. This function
1916 * is called with no lock held. The function returns the number of HBQ entries
1917 * successfully allocated.
1920 lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
1922 if (phba->sli_rev == LPFC_SLI_REV4)
1925 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1926 lpfc_hbq_defs[qno]->add_count);
1930 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
1931 * @phba: Pointer to HBA context object.
1932 * @qno: HBQ queue number.
1934 * This function is called from SLI initialization code path with
1935 * no lock held to post initial HBQ buffers to firmware. The
1936 * function returns the number of HBQ entries successfully allocated.
1939 lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
1941 if (phba->sli_rev == LPFC_SLI_REV4)
1942 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1943 lpfc_hbq_defs[qno]->entry_count);
1945 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1946 lpfc_hbq_defs[qno]->init_count);
1950 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
1951 * @phba: Pointer to HBA context object.
1952 * @hbqno: HBQ number.
1954 * This function removes the first hbq buffer on an hbq list and returns a
1955 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
1957 static struct hbq_dmabuf *
1958 lpfc_sli_hbqbuf_get(struct list_head *rb_list)
1960 struct lpfc_dmabuf *d_buf;
1962 list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
1965 return container_of(d_buf, struct hbq_dmabuf, dbuf);
1969 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
1970 * @phba: Pointer to HBA context object.
1971 * @tag: Tag of the hbq buffer.
1973 * This function is called with hbalock held. This function searches
1974 * for the hbq buffer associated with the given tag in the hbq buffer
1975 * list. If it finds the hbq buffer, it returns the hbq_buffer other wise
1978 static struct hbq_dmabuf *
1979 lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
1981 struct lpfc_dmabuf *d_buf;
1982 struct hbq_dmabuf *hbq_buf;
1986 if (hbqno >= LPFC_MAX_HBQS)
1989 spin_lock_irq(&phba->hbalock);
1990 list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
1991 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
1992 if (hbq_buf->tag == tag) {
1993 spin_unlock_irq(&phba->hbalock);
1997 spin_unlock_irq(&phba->hbalock);
1998 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT,
1999 "1803 Bad hbq tag. Data: x%x x%x\n",
2000 tag, phba->hbqs[tag >> 16].buffer_count);
2005 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
2006 * @phba: Pointer to HBA context object.
2007 * @hbq_buffer: Pointer to HBQ buffer.
2009 * This function is called with hbalock. This function gives back
2010 * the hbq buffer to firmware. If the HBQ does not have space to
2011 * post the buffer, it will free the buffer.
2014 lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
2019 hbqno = hbq_buffer->tag >> 16;
2020 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
2021 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
2026 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
2027 * @mbxCommand: mailbox command code.
2029 * This function is called by the mailbox event handler function to verify
2030 * that the completed mailbox command is a legitimate mailbox command. If the
2031 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
2032 * and the mailbox event handler will take the HBA offline.
2035 lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
2039 switch (mbxCommand) {
2043 case MBX_WRITE_VPARMS:
2044 case MBX_RUN_BIU_DIAG:
2047 case MBX_CONFIG_LINK:
2048 case MBX_CONFIG_RING:
2049 case MBX_RESET_RING:
2050 case MBX_READ_CONFIG:
2051 case MBX_READ_RCONFIG:
2052 case MBX_READ_SPARM:
2053 case MBX_READ_STATUS:
2057 case MBX_READ_LNK_STAT:
2059 case MBX_UNREG_LOGIN:
2061 case MBX_DUMP_MEMORY:
2062 case MBX_DUMP_CONTEXT:
2065 case MBX_UPDATE_CFG:
2067 case MBX_DEL_LD_ENTRY:
2068 case MBX_RUN_PROGRAM:
2070 case MBX_SET_VARIABLE:
2071 case MBX_UNREG_D_ID:
2072 case MBX_KILL_BOARD:
2073 case MBX_CONFIG_FARP:
2076 case MBX_RUN_BIU_DIAG64:
2077 case MBX_CONFIG_PORT:
2078 case MBX_READ_SPARM64:
2079 case MBX_READ_RPI64:
2080 case MBX_REG_LOGIN64:
2081 case MBX_READ_TOPOLOGY:
2084 case MBX_LOAD_EXP_ROM:
2085 case MBX_ASYNCEVT_ENABLE:
2089 case MBX_PORT_CAPABILITIES:
2090 case MBX_PORT_IOV_CONTROL:
2091 case MBX_SLI4_CONFIG:
2092 case MBX_SLI4_REQ_FTRS:
2094 case MBX_UNREG_FCFI:
2099 case MBX_RESUME_RPI:
2100 case MBX_READ_EVENT_LOG_STATUS:
2101 case MBX_READ_EVENT_LOG:
2102 case MBX_SECURITY_MGMT:
2104 case MBX_ACCESS_VDATA:
2115 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
2116 * @phba: Pointer to HBA context object.
2117 * @pmboxq: Pointer to mailbox command.
2119 * This is completion handler function for mailbox commands issued from
2120 * lpfc_sli_issue_mbox_wait function. This function is called by the
2121 * mailbox event handler function with no lock held. This function
2122 * will wake up thread waiting on the wait queue pointed by context1
2126 lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
2128 wait_queue_head_t *pdone_q;
2129 unsigned long drvr_flag;
2132 * If pdone_q is empty, the driver thread gave up waiting and
2133 * continued running.
2135 pmboxq->mbox_flag |= LPFC_MBX_WAKE;
2136 spin_lock_irqsave(&phba->hbalock, drvr_flag);
2137 pdone_q = (wait_queue_head_t *) pmboxq->context1;
2139 wake_up_interruptible(pdone_q);
2140 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
2146 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
2147 * @phba: Pointer to HBA context object.
2148 * @pmb: Pointer to mailbox object.
2150 * This function is the default mailbox completion handler. It
2151 * frees the memory resources associated with the completed mailbox
2152 * command. If the completed command is a REG_LOGIN mailbox command,
2153 * this function will issue a UREG_LOGIN to re-claim the RPI.
2156 lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2158 struct lpfc_vport *vport = pmb->vport;
2159 struct lpfc_dmabuf *mp;
2160 struct lpfc_nodelist *ndlp;
2161 struct Scsi_Host *shost;
2165 mp = (struct lpfc_dmabuf *) (pmb->context1);
2168 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2173 * If a REG_LOGIN succeeded after node is destroyed or node
2174 * is in re-discovery driver need to cleanup the RPI.
2176 if (!(phba->pport->load_flag & FC_UNLOADING) &&
2177 pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
2178 !pmb->u.mb.mbxStatus) {
2179 rpi = pmb->u.mb.un.varWords[0];
2180 vpi = pmb->u.mb.un.varRegLogin.vpi;
2181 lpfc_unreg_login(phba, vpi, rpi, pmb);
2182 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2183 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2184 if (rc != MBX_NOT_FINISHED)
2188 if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) &&
2189 !(phba->pport->load_flag & FC_UNLOADING) &&
2190 !pmb->u.mb.mbxStatus) {
2191 shost = lpfc_shost_from_vport(vport);
2192 spin_lock_irq(shost->host_lock);
2193 vport->vpi_state |= LPFC_VPI_REGISTERED;
2194 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
2195 spin_unlock_irq(shost->host_lock);
2198 if (pmb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
2199 ndlp = (struct lpfc_nodelist *)pmb->context2;
2201 pmb->context2 = NULL;
2204 /* Check security permission status on INIT_LINK mailbox command */
2205 if ((pmb->u.mb.mbxCommand == MBX_INIT_LINK) &&
2206 (pmb->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
2207 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2208 "2860 SLI authentication is required "
2209 "for INIT_LINK but has not done yet\n");
2211 if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
2212 lpfc_sli4_mbox_cmd_free(phba, pmb);
2214 mempool_free(pmb, phba->mbox_mem_pool);
2218 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
2219 * @phba: Pointer to HBA context object.
2221 * This function is called with no lock held. This function processes all
2222 * the completed mailbox commands and gives it to upper layers. The interrupt
2223 * service routine processes mailbox completion interrupt and adds completed
2224 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
2225 * Worker thread call lpfc_sli_handle_mb_event, which will return the
2226 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
2227 * function returns the mailbox commands to the upper layer by calling the
2228 * completion handler function of each mailbox.
2231 lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
2238 phba->sli.slistat.mbox_event++;
2240 /* Get all completed mailboxe buffers into the cmplq */
2241 spin_lock_irq(&phba->hbalock);
2242 list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
2243 spin_unlock_irq(&phba->hbalock);
2245 /* Get a Mailbox buffer to setup mailbox commands for callback */
2247 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
2253 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
2255 lpfc_debugfs_disc_trc(pmb->vport,
2256 LPFC_DISC_TRC_MBOX_VPORT,
2257 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
2258 (uint32_t)pmbox->mbxCommand,
2259 pmbox->un.varWords[0],
2260 pmbox->un.varWords[1]);
2263 lpfc_debugfs_disc_trc(phba->pport,
2265 "MBOX cmpl: cmd:x%x mb:x%x x%x",
2266 (uint32_t)pmbox->mbxCommand,
2267 pmbox->un.varWords[0],
2268 pmbox->un.varWords[1]);
2273 * It is a fatal error if unknown mbox command completion.
2275 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
2277 /* Unknown mailbox command compl */
2278 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2279 "(%d):0323 Unknown Mailbox command "
2280 "x%x (x%x/x%x) Cmpl\n",
2281 pmb->vport ? pmb->vport->vpi : 0,
2283 lpfc_sli_config_mbox_subsys_get(phba,
2285 lpfc_sli_config_mbox_opcode_get(phba,
2287 phba->link_state = LPFC_HBA_ERROR;
2288 phba->work_hs = HS_FFER3;
2289 lpfc_handle_eratt(phba);
2293 if (pmbox->mbxStatus) {
2294 phba->sli.slistat.mbox_stat_err++;
2295 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
2296 /* Mbox cmd cmpl error - RETRYing */
2297 lpfc_printf_log(phba, KERN_INFO,
2299 "(%d):0305 Mbox cmd cmpl "
2300 "error - RETRYing Data: x%x "
2301 "(x%x/x%x) x%x x%x x%x\n",
2302 pmb->vport ? pmb->vport->vpi : 0,
2304 lpfc_sli_config_mbox_subsys_get(phba,
2306 lpfc_sli_config_mbox_opcode_get(phba,
2309 pmbox->un.varWords[0],
2310 pmb->vport->port_state);
2311 pmbox->mbxStatus = 0;
2312 pmbox->mbxOwner = OWN_HOST;
2313 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2314 if (rc != MBX_NOT_FINISHED)
2319 /* Mailbox cmd <cmd> Cmpl <cmpl> */
2320 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
2321 "(%d):0307 Mailbox cmd x%x (x%x/x%x) Cmpl x%p "
2322 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
2324 pmb->vport ? pmb->vport->vpi : 0,
2326 lpfc_sli_config_mbox_subsys_get(phba, pmb),
2327 lpfc_sli_config_mbox_opcode_get(phba, pmb),
2329 *((uint32_t *) pmbox),
2330 pmbox->un.varWords[0],
2331 pmbox->un.varWords[1],
2332 pmbox->un.varWords[2],
2333 pmbox->un.varWords[3],
2334 pmbox->un.varWords[4],
2335 pmbox->un.varWords[5],
2336 pmbox->un.varWords[6],
2337 pmbox->un.varWords[7],
2338 pmbox->un.varWords[8],
2339 pmbox->un.varWords[9],
2340 pmbox->un.varWords[10]);
2343 pmb->mbox_cmpl(phba,pmb);
2349 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
2350 * @phba: Pointer to HBA context object.
2351 * @pring: Pointer to driver SLI ring object.
2354 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
2355 * is set in the tag the buffer is posted for a particular exchange,
2356 * the function will return the buffer without replacing the buffer.
2357 * If the buffer is for unsolicited ELS or CT traffic, this function
2358 * returns the buffer and also posts another buffer to the firmware.
2360 static struct lpfc_dmabuf *
2361 lpfc_sli_get_buff(struct lpfc_hba *phba,
2362 struct lpfc_sli_ring *pring,
2365 struct hbq_dmabuf *hbq_entry;
2367 if (tag & QUE_BUFTAG_BIT)
2368 return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
2369 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
2372 return &hbq_entry->dbuf;
2376 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
2377 * @phba: Pointer to HBA context object.
2378 * @pring: Pointer to driver SLI ring object.
2379 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
2380 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
2381 * @fch_type: the type for the first frame of the sequence.
2383 * This function is called with no lock held. This function uses the r_ctl and
2384 * type of the received sequence to find the correct callback function to call
2385 * to process the sequence.
2388 lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2389 struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
2394 /* unSolicited Responses */
2395 if (pring->prt[0].profile) {
2396 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
2397 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
2401 /* We must search, based on rctl / type
2402 for the right routine */
2403 for (i = 0; i < pring->num_mask; i++) {
2404 if ((pring->prt[i].rctl == fch_r_ctl) &&
2405 (pring->prt[i].type == fch_type)) {
2406 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
2407 (pring->prt[i].lpfc_sli_rcv_unsol_event)
2408 (phba, pring, saveq);
2416 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
2417 * @phba: Pointer to HBA context object.
2418 * @pring: Pointer to driver SLI ring object.
2419 * @saveq: Pointer to the unsolicited iocb.
2421 * This function is called with no lock held by the ring event handler
2422 * when there is an unsolicited iocb posted to the response ring by the
2423 * firmware. This function gets the buffer associated with the iocbs
2424 * and calls the event handler for the ring. This function handles both
2425 * qring buffers and hbq buffers.
2426 * When the function returns 1 the caller can free the iocb object otherwise
2427 * upper layer functions will free the iocb objects.
2430 lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2431 struct lpfc_iocbq *saveq)
2435 uint32_t Rctl, Type;
2436 struct lpfc_iocbq *iocbq;
2437 struct lpfc_dmabuf *dmzbuf;
2439 irsp = &(saveq->iocb);
2441 if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
2442 if (pring->lpfc_sli_rcv_async_status)
2443 pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
2445 lpfc_printf_log(phba,
2448 "0316 Ring %d handler: unexpected "
2449 "ASYNC_STATUS iocb received evt_code "
2452 irsp->un.asyncstat.evt_code);
2456 if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
2457 (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
2458 if (irsp->ulpBdeCount > 0) {
2459 dmzbuf = lpfc_sli_get_buff(phba, pring,
2460 irsp->un.ulpWord[3]);
2461 lpfc_in_buf_free(phba, dmzbuf);
2464 if (irsp->ulpBdeCount > 1) {
2465 dmzbuf = lpfc_sli_get_buff(phba, pring,
2466 irsp->unsli3.sli3Words[3]);
2467 lpfc_in_buf_free(phba, dmzbuf);
2470 if (irsp->ulpBdeCount > 2) {
2471 dmzbuf = lpfc_sli_get_buff(phba, pring,
2472 irsp->unsli3.sli3Words[7]);
2473 lpfc_in_buf_free(phba, dmzbuf);
2479 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
2480 if (irsp->ulpBdeCount != 0) {
2481 saveq->context2 = lpfc_sli_get_buff(phba, pring,
2482 irsp->un.ulpWord[3]);
2483 if (!saveq->context2)
2484 lpfc_printf_log(phba,
2487 "0341 Ring %d Cannot find buffer for "
2488 "an unsolicited iocb. tag 0x%x\n",
2490 irsp->un.ulpWord[3]);
2492 if (irsp->ulpBdeCount == 2) {
2493 saveq->context3 = lpfc_sli_get_buff(phba, pring,
2494 irsp->unsli3.sli3Words[7]);
2495 if (!saveq->context3)
2496 lpfc_printf_log(phba,
2499 "0342 Ring %d Cannot find buffer for an"
2500 " unsolicited iocb. tag 0x%x\n",
2502 irsp->unsli3.sli3Words[7]);
2504 list_for_each_entry(iocbq, &saveq->list, list) {
2505 irsp = &(iocbq->iocb);
2506 if (irsp->ulpBdeCount != 0) {
2507 iocbq->context2 = lpfc_sli_get_buff(phba, pring,
2508 irsp->un.ulpWord[3]);
2509 if (!iocbq->context2)
2510 lpfc_printf_log(phba,
2513 "0343 Ring %d Cannot find "
2514 "buffer for an unsolicited iocb"
2515 ". tag 0x%x\n", pring->ringno,
2516 irsp->un.ulpWord[3]);
2518 if (irsp->ulpBdeCount == 2) {
2519 iocbq->context3 = lpfc_sli_get_buff(phba, pring,
2520 irsp->unsli3.sli3Words[7]);
2521 if (!iocbq->context3)
2522 lpfc_printf_log(phba,
2525 "0344 Ring %d Cannot find "
2526 "buffer for an unsolicited "
2529 irsp->unsli3.sli3Words[7]);
2533 if (irsp->ulpBdeCount != 0 &&
2534 (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
2535 irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
2538 /* search continue save q for same XRI */
2539 list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
2540 if (iocbq->iocb.unsli3.rcvsli3.ox_id ==
2541 saveq->iocb.unsli3.rcvsli3.ox_id) {
2542 list_add_tail(&saveq->list, &iocbq->list);
2548 list_add_tail(&saveq->clist,
2549 &pring->iocb_continue_saveq);
2550 if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
2551 list_del_init(&iocbq->clist);
2553 irsp = &(saveq->iocb);
2557 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
2558 (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
2559 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
2560 Rctl = FC_RCTL_ELS_REQ;
2563 w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
2564 Rctl = w5p->hcsw.Rctl;
2565 Type = w5p->hcsw.Type;
2567 /* Firmware Workaround */
2568 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
2569 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
2570 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
2571 Rctl = FC_RCTL_ELS_REQ;
2573 w5p->hcsw.Rctl = Rctl;
2574 w5p->hcsw.Type = Type;
2578 if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
2579 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2580 "0313 Ring %d handler: unexpected Rctl x%x "
2581 "Type x%x received\n",
2582 pring->ringno, Rctl, Type);
2588 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
2589 * @phba: Pointer to HBA context object.
2590 * @pring: Pointer to driver SLI ring object.
2591 * @prspiocb: Pointer to response iocb object.
2593 * This function looks up the iocb_lookup table to get the command iocb
2594 * corresponding to the given response iocb using the iotag of the
2595 * response iocb. This function is called with the hbalock held.
2596 * This function returns the command iocb object if it finds the command
2597 * iocb else returns NULL.
2599 static struct lpfc_iocbq *
2600 lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
2601 struct lpfc_sli_ring *pring,
2602 struct lpfc_iocbq *prspiocb)
2604 struct lpfc_iocbq *cmd_iocb = NULL;
2607 iotag = prspiocb->iocb.ulpIoTag;
2609 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2610 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2611 list_del_init(&cmd_iocb->list);
2612 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
2613 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
2618 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2619 "0317 iotag x%x is out off "
2620 "range: max iotag x%x wd0 x%x\n",
2621 iotag, phba->sli.last_iotag,
2622 *(((uint32_t *) &prspiocb->iocb) + 7));
2627 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2628 * @phba: Pointer to HBA context object.
2629 * @pring: Pointer to driver SLI ring object.
2632 * This function looks up the iocb_lookup table to get the command iocb
2633 * corresponding to the given iotag. This function is called with the
2635 * This function returns the command iocb object if it finds the command
2636 * iocb else returns NULL.
2638 static struct lpfc_iocbq *
2639 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
2640 struct lpfc_sli_ring *pring, uint16_t iotag)
2642 struct lpfc_iocbq *cmd_iocb;
2644 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2645 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2646 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
2647 /* remove from txcmpl queue list */
2648 list_del_init(&cmd_iocb->list);
2649 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
2653 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2654 "0372 iotag x%x is out off range: max iotag (x%x)\n",
2655 iotag, phba->sli.last_iotag);
2660 * lpfc_sli_process_sol_iocb - process solicited iocb completion
2661 * @phba: Pointer to HBA context object.
2662 * @pring: Pointer to driver SLI ring object.
2663 * @saveq: Pointer to the response iocb to be processed.
2665 * This function is called by the ring event handler for non-fcp
2666 * rings when there is a new response iocb in the response ring.
2667 * The caller is not required to hold any locks. This function
2668 * gets the command iocb associated with the response iocb and
2669 * calls the completion handler for the command iocb. If there
2670 * is no completion handler, the function will free the resources
2671 * associated with command iocb. If the response iocb is for
2672 * an already aborted command iocb, the status of the completion
2673 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
2674 * This function always returns 1.
2677 lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2678 struct lpfc_iocbq *saveq)
2680 struct lpfc_iocbq *cmdiocbp;
2682 unsigned long iflag;
2684 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
2685 spin_lock_irqsave(&phba->hbalock, iflag);
2686 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
2687 spin_unlock_irqrestore(&phba->hbalock, iflag);
2690 if (cmdiocbp->iocb_cmpl) {
2692 * If an ELS command failed send an event to mgmt
2695 if (saveq->iocb.ulpStatus &&
2696 (pring->ringno == LPFC_ELS_RING) &&
2697 (cmdiocbp->iocb.ulpCommand ==
2698 CMD_ELS_REQUEST64_CR))
2699 lpfc_send_els_failure_event(phba,
2703 * Post all ELS completions to the worker thread.
2704 * All other are passed to the completion callback.
2706 if (pring->ringno == LPFC_ELS_RING) {
2707 if ((phba->sli_rev < LPFC_SLI_REV4) &&
2708 (cmdiocbp->iocb_flag &
2709 LPFC_DRIVER_ABORTED)) {
2710 spin_lock_irqsave(&phba->hbalock,
2712 cmdiocbp->iocb_flag &=
2713 ~LPFC_DRIVER_ABORTED;
2714 spin_unlock_irqrestore(&phba->hbalock,
2716 saveq->iocb.ulpStatus =
2717 IOSTAT_LOCAL_REJECT;
2718 saveq->iocb.un.ulpWord[4] =
2721 /* Firmware could still be in progress
2722 * of DMAing payload, so don't free data
2723 * buffer till after a hbeat.
2725 spin_lock_irqsave(&phba->hbalock,
2727 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
2728 spin_unlock_irqrestore(&phba->hbalock,
2731 if (phba->sli_rev == LPFC_SLI_REV4) {
2732 if (saveq->iocb_flag &
2733 LPFC_EXCHANGE_BUSY) {
2734 /* Set cmdiocb flag for the
2735 * exchange busy so sgl (xri)
2736 * will not be released until
2737 * the abort xri is received
2741 &phba->hbalock, iflag);
2742 cmdiocbp->iocb_flag |=
2744 spin_unlock_irqrestore(
2745 &phba->hbalock, iflag);
2747 if (cmdiocbp->iocb_flag &
2748 LPFC_DRIVER_ABORTED) {
2750 * Clear LPFC_DRIVER_ABORTED
2751 * bit in case it was driver
2755 &phba->hbalock, iflag);
2756 cmdiocbp->iocb_flag &=
2757 ~LPFC_DRIVER_ABORTED;
2758 spin_unlock_irqrestore(
2759 &phba->hbalock, iflag);
2760 cmdiocbp->iocb.ulpStatus =
2761 IOSTAT_LOCAL_REJECT;
2762 cmdiocbp->iocb.un.ulpWord[4] =
2763 IOERR_ABORT_REQUESTED;
2765 * For SLI4, irsiocb contains
2766 * NO_XRI in sli_xritag, it
2767 * shall not affect releasing
2768 * sgl (xri) process.
2770 saveq->iocb.ulpStatus =
2771 IOSTAT_LOCAL_REJECT;
2772 saveq->iocb.un.ulpWord[4] =
2775 &phba->hbalock, iflag);
2777 LPFC_DELAY_MEM_FREE;
2778 spin_unlock_irqrestore(
2779 &phba->hbalock, iflag);
2783 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
2785 lpfc_sli_release_iocbq(phba, cmdiocbp);
2788 * Unknown initiating command based on the response iotag.
2789 * This could be the case on the ELS ring because of
2792 if (pring->ringno != LPFC_ELS_RING) {
2794 * Ring <ringno> handler: unexpected completion IoTag
2797 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2798 "0322 Ring %d handler: "
2799 "unexpected completion IoTag x%x "
2800 "Data: x%x x%x x%x x%x\n",
2802 saveq->iocb.ulpIoTag,
2803 saveq->iocb.ulpStatus,
2804 saveq->iocb.un.ulpWord[4],
2805 saveq->iocb.ulpCommand,
2806 saveq->iocb.ulpContext);
2814 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
2815 * @phba: Pointer to HBA context object.
2816 * @pring: Pointer to driver SLI ring object.
2818 * This function is called from the iocb ring event handlers when
2819 * put pointer is ahead of the get pointer for a ring. This function signal
2820 * an error attention condition to the worker thread and the worker
2821 * thread will transition the HBA to offline state.
2824 lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
2826 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2828 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
2829 * rsp ring <portRspMax>
2831 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2832 "0312 Ring %d handler: portRspPut %d "
2833 "is bigger than rsp ring %d\n",
2834 pring->ringno, le32_to_cpu(pgp->rspPutInx),
2835 pring->sli.sli3.numRiocb);
2837 phba->link_state = LPFC_HBA_ERROR;
2840 * All error attention handlers are posted to
2843 phba->work_ha |= HA_ERATT;
2844 phba->work_hs = HS_FFER3;
2846 lpfc_worker_wake_up(phba);
2852 * lpfc_poll_eratt - Error attention polling timer timeout handler
2853 * @ptr: Pointer to address of HBA context object.
2855 * This function is invoked by the Error Attention polling timer when the
2856 * timer times out. It will check the SLI Error Attention register for
2857 * possible attention events. If so, it will post an Error Attention event
2858 * and wake up worker thread to process it. Otherwise, it will set up the
2859 * Error Attention polling timer for the next poll.
2861 void lpfc_poll_eratt(unsigned long ptr)
2863 struct lpfc_hba *phba;
2865 uint64_t sli_intr, cnt;
2867 phba = (struct lpfc_hba *)ptr;
2869 /* Here we will also keep track of interrupts per sec of the hba */
2870 sli_intr = phba->sli.slistat.sli_intr;
2872 if (phba->sli.slistat.sli_prev_intr > sli_intr)
2873 cnt = (((uint64_t)(-1) - phba->sli.slistat.sli_prev_intr) +
2876 cnt = (sli_intr - phba->sli.slistat.sli_prev_intr);
2878 /* 64-bit integer division not supporte on 32-bit x86 - use do_div */
2879 do_div(cnt, LPFC_ERATT_POLL_INTERVAL);
2880 phba->sli.slistat.sli_ips = cnt;
2882 phba->sli.slistat.sli_prev_intr = sli_intr;
2884 /* Check chip HA register for error event */
2885 eratt = lpfc_sli_check_eratt(phba);
2888 /* Tell the worker thread there is work to do */
2889 lpfc_worker_wake_up(phba);
2891 /* Restart the timer for next eratt poll */
2892 mod_timer(&phba->eratt_poll,
2894 msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
2900 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
2901 * @phba: Pointer to HBA context object.
2902 * @pring: Pointer to driver SLI ring object.
2903 * @mask: Host attention register mask for this ring.
2905 * This function is called from the interrupt context when there is a ring
2906 * event for the fcp ring. The caller does not hold any lock.
2907 * The function processes each response iocb in the response ring until it
2908 * finds an iocb with LE bit set and chains all the iocbs up to the iocb with
2909 * LE bit set. The function will call the completion handler of the command iocb
2910 * if the response iocb indicates a completion for a command iocb or it is
2911 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
2912 * function if this is an unsolicited iocb.
2913 * This routine presumes LPFC_FCP_RING handling and doesn't bother
2914 * to check it explicitly.
2917 lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
2918 struct lpfc_sli_ring *pring, uint32_t mask)
2920 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2921 IOCB_t *irsp = NULL;
2922 IOCB_t *entry = NULL;
2923 struct lpfc_iocbq *cmdiocbq = NULL;
2924 struct lpfc_iocbq rspiocbq;
2926 uint32_t portRspPut, portRspMax;
2928 lpfc_iocb_type type;
2929 unsigned long iflag;
2930 uint32_t rsp_cmpl = 0;
2932 spin_lock_irqsave(&phba->hbalock, iflag);
2933 pring->stats.iocb_event++;
2936 * The next available response entry should never exceed the maximum
2937 * entries. If it does, treat it as an adapter hardware error.
2939 portRspMax = pring->sli.sli3.numRiocb;
2940 portRspPut = le32_to_cpu(pgp->rspPutInx);
2941 if (unlikely(portRspPut >= portRspMax)) {
2942 lpfc_sli_rsp_pointers_error(phba, pring);
2943 spin_unlock_irqrestore(&phba->hbalock, iflag);
2946 if (phba->fcp_ring_in_use) {
2947 spin_unlock_irqrestore(&phba->hbalock, iflag);
2950 phba->fcp_ring_in_use = 1;
2953 while (pring->sli.sli3.rspidx != portRspPut) {
2955 * Fetch an entry off the ring and copy it into a local data
2956 * structure. The copy involves a byte-swap since the
2957 * network byte order and pci byte orders are different.
2959 entry = lpfc_resp_iocb(phba, pring);
2960 phba->last_completion_time = jiffies;
2962 if (++pring->sli.sli3.rspidx >= portRspMax)
2963 pring->sli.sli3.rspidx = 0;
2965 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
2966 (uint32_t *) &rspiocbq.iocb,
2967 phba->iocb_rsp_size);
2968 INIT_LIST_HEAD(&(rspiocbq.list));
2969 irsp = &rspiocbq.iocb;
2971 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
2972 pring->stats.iocb_rsp++;
2975 if (unlikely(irsp->ulpStatus)) {
2977 * If resource errors reported from HBA, reduce
2978 * queuedepths of the SCSI device.
2980 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
2981 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
2982 IOERR_NO_RESOURCES)) {
2983 spin_unlock_irqrestore(&phba->hbalock, iflag);
2984 phba->lpfc_rampdown_queue_depth(phba);
2985 spin_lock_irqsave(&phba->hbalock, iflag);
2988 /* Rsp ring <ringno> error: IOCB */
2989 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2990 "0336 Rsp Ring %d error: IOCB Data: "
2991 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
2993 irsp->un.ulpWord[0],
2994 irsp->un.ulpWord[1],
2995 irsp->un.ulpWord[2],
2996 irsp->un.ulpWord[3],
2997 irsp->un.ulpWord[4],
2998 irsp->un.ulpWord[5],
2999 *(uint32_t *)&irsp->un1,
3000 *((uint32_t *)&irsp->un1 + 1));
3004 case LPFC_ABORT_IOCB:
3007 * Idle exchange closed via ABTS from port. No iocb
3008 * resources need to be recovered.
3010 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
3011 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3012 "0333 IOCB cmd 0x%x"
3013 " processed. Skipping"
3019 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
3021 if (unlikely(!cmdiocbq))
3023 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED)
3024 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
3025 if (cmdiocbq->iocb_cmpl) {
3026 spin_unlock_irqrestore(&phba->hbalock, iflag);
3027 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
3029 spin_lock_irqsave(&phba->hbalock, iflag);
3032 case LPFC_UNSOL_IOCB:
3033 spin_unlock_irqrestore(&phba->hbalock, iflag);
3034 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
3035 spin_lock_irqsave(&phba->hbalock, iflag);
3038 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3039 char adaptermsg[LPFC_MAX_ADPTMSG];
3040 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3041 memcpy(&adaptermsg[0], (uint8_t *) irsp,
3043 dev_warn(&((phba->pcidev)->dev),
3045 phba->brd_no, adaptermsg);
3047 /* Unknown IOCB command */
3048 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3049 "0334 Unknown IOCB command "
3050 "Data: x%x, x%x x%x x%x x%x\n",
3051 type, irsp->ulpCommand,
3060 * The response IOCB has been processed. Update the ring
3061 * pointer in SLIM. If the port response put pointer has not
3062 * been updated, sync the pgp->rspPutInx and fetch the new port
3063 * response put pointer.
3065 writel(pring->sli.sli3.rspidx,
3066 &phba->host_gp[pring->ringno].rspGetInx);
3068 if (pring->sli.sli3.rspidx == portRspPut)
3069 portRspPut = le32_to_cpu(pgp->rspPutInx);
3072 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
3073 pring->stats.iocb_rsp_full++;
3074 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3075 writel(status, phba->CAregaddr);
3076 readl(phba->CAregaddr);
3078 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3079 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3080 pring->stats.iocb_cmd_empty++;
3082 /* Force update of the local copy of cmdGetInx */
3083 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3084 lpfc_sli_resume_iocb(phba, pring);
3086 if ((pring->lpfc_sli_cmd_available))
3087 (pring->lpfc_sli_cmd_available) (phba, pring);
3091 phba->fcp_ring_in_use = 0;
3092 spin_unlock_irqrestore(&phba->hbalock, iflag);
3097 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
3098 * @phba: Pointer to HBA context object.
3099 * @pring: Pointer to driver SLI ring object.
3100 * @rspiocbp: Pointer to driver response IOCB object.
3102 * This function is called from the worker thread when there is a slow-path
3103 * response IOCB to process. This function chains all the response iocbs until
3104 * seeing the iocb with the LE bit set. The function will call
3105 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
3106 * completion of a command iocb. The function will call the
3107 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
3108 * The function frees the resources or calls the completion handler if this
3109 * iocb is an abort completion. The function returns NULL when the response
3110 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
3111 * this function shall chain the iocb on to the iocb_continueq and return the
3112 * response iocb passed in.
3114 static struct lpfc_iocbq *
3115 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3116 struct lpfc_iocbq *rspiocbp)
3118 struct lpfc_iocbq *saveq;
3119 struct lpfc_iocbq *cmdiocbp;
3120 struct lpfc_iocbq *next_iocb;
3121 IOCB_t *irsp = NULL;
3122 uint32_t free_saveq;
3123 uint8_t iocb_cmd_type;
3124 lpfc_iocb_type type;
3125 unsigned long iflag;
3128 spin_lock_irqsave(&phba->hbalock, iflag);
3129 /* First add the response iocb to the countinueq list */
3130 list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
3131 pring->iocb_continueq_cnt++;
3133 /* Now, determine whether the list is completed for processing */
3134 irsp = &rspiocbp->iocb;
3137 * By default, the driver expects to free all resources
3138 * associated with this iocb completion.
3141 saveq = list_get_first(&pring->iocb_continueq,
3142 struct lpfc_iocbq, list);
3143 irsp = &(saveq->iocb);
3144 list_del_init(&pring->iocb_continueq);
3145 pring->iocb_continueq_cnt = 0;
3147 pring->stats.iocb_rsp++;
3150 * If resource errors reported from HBA, reduce
3151 * queuedepths of the SCSI device.
3153 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3154 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3155 IOERR_NO_RESOURCES)) {
3156 spin_unlock_irqrestore(&phba->hbalock, iflag);
3157 phba->lpfc_rampdown_queue_depth(phba);
3158 spin_lock_irqsave(&phba->hbalock, iflag);
3161 if (irsp->ulpStatus) {
3162 /* Rsp ring <ringno> error: IOCB */
3163 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3164 "0328 Rsp Ring %d error: "
3169 "x%x x%x x%x x%x\n",
3171 irsp->un.ulpWord[0],
3172 irsp->un.ulpWord[1],
3173 irsp->un.ulpWord[2],
3174 irsp->un.ulpWord[3],
3175 irsp->un.ulpWord[4],
3176 irsp->un.ulpWord[5],
3177 *(((uint32_t *) irsp) + 6),
3178 *(((uint32_t *) irsp) + 7),
3179 *(((uint32_t *) irsp) + 8),
3180 *(((uint32_t *) irsp) + 9),
3181 *(((uint32_t *) irsp) + 10),
3182 *(((uint32_t *) irsp) + 11),
3183 *(((uint32_t *) irsp) + 12),
3184 *(((uint32_t *) irsp) + 13),
3185 *(((uint32_t *) irsp) + 14),
3186 *(((uint32_t *) irsp) + 15));
3190 * Fetch the IOCB command type and call the correct completion
3191 * routine. Solicited and Unsolicited IOCBs on the ELS ring
3192 * get freed back to the lpfc_iocb_list by the discovery
3195 iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
3196 type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
3199 spin_unlock_irqrestore(&phba->hbalock, iflag);
3200 rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
3201 spin_lock_irqsave(&phba->hbalock, iflag);
3204 case LPFC_UNSOL_IOCB:
3205 spin_unlock_irqrestore(&phba->hbalock, iflag);
3206 rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
3207 spin_lock_irqsave(&phba->hbalock, iflag);
3212 case LPFC_ABORT_IOCB:
3214 if (irsp->ulpCommand != CMD_XRI_ABORTED_CX)
3215 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
3218 /* Call the specified completion routine */
3219 if (cmdiocbp->iocb_cmpl) {
3220 spin_unlock_irqrestore(&phba->hbalock,
3222 (cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
3224 spin_lock_irqsave(&phba->hbalock,
3227 __lpfc_sli_release_iocbq(phba,
3232 case LPFC_UNKNOWN_IOCB:
3233 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3234 char adaptermsg[LPFC_MAX_ADPTMSG];
3235 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3236 memcpy(&adaptermsg[0], (uint8_t *)irsp,
3238 dev_warn(&((phba->pcidev)->dev),
3240 phba->brd_no, adaptermsg);
3242 /* Unknown IOCB command */
3243 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3244 "0335 Unknown IOCB "
3245 "command Data: x%x "
3256 list_for_each_entry_safe(rspiocbp, next_iocb,
3257 &saveq->list, list) {
3258 list_del_init(&rspiocbp->list);
3259 __lpfc_sli_release_iocbq(phba, rspiocbp);
3261 __lpfc_sli_release_iocbq(phba, saveq);
3265 spin_unlock_irqrestore(&phba->hbalock, iflag);
3270 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
3271 * @phba: Pointer to HBA context object.
3272 * @pring: Pointer to driver SLI ring object.
3273 * @mask: Host attention register mask for this ring.
3275 * This routine wraps the actual slow_ring event process routine from the
3276 * API jump table function pointer from the lpfc_hba struct.
3279 lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
3280 struct lpfc_sli_ring *pring, uint32_t mask)
3282 phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
3286 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
3287 * @phba: Pointer to HBA context object.
3288 * @pring: Pointer to driver SLI ring object.
3289 * @mask: Host attention register mask for this ring.
3291 * This function is called from the worker thread when there is a ring event
3292 * for non-fcp rings. The caller does not hold any lock. The function will
3293 * remove each response iocb in the response ring and calls the handle
3294 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3297 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
3298 struct lpfc_sli_ring *pring, uint32_t mask)
3300 struct lpfc_pgp *pgp;
3302 IOCB_t *irsp = NULL;
3303 struct lpfc_iocbq *rspiocbp = NULL;
3304 uint32_t portRspPut, portRspMax;
3305 unsigned long iflag;
3308 pgp = &phba->port_gp[pring->ringno];
3309 spin_lock_irqsave(&phba->hbalock, iflag);
3310 pring->stats.iocb_event++;
3313 * The next available response entry should never exceed the maximum
3314 * entries. If it does, treat it as an adapter hardware error.
3316 portRspMax = pring->sli.sli3.numRiocb;
3317 portRspPut = le32_to_cpu(pgp->rspPutInx);
3318 if (portRspPut >= portRspMax) {
3320 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
3321 * rsp ring <portRspMax>
3323 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3324 "0303 Ring %d handler: portRspPut %d "
3325 "is bigger than rsp ring %d\n",
3326 pring->ringno, portRspPut, portRspMax);
3328 phba->link_state = LPFC_HBA_ERROR;
3329 spin_unlock_irqrestore(&phba->hbalock, iflag);
3331 phba->work_hs = HS_FFER3;
3332 lpfc_handle_eratt(phba);
3338 while (pring->sli.sli3.rspidx != portRspPut) {
3340 * Build a completion list and call the appropriate handler.
3341 * The process is to get the next available response iocb, get
3342 * a free iocb from the list, copy the response data into the
3343 * free iocb, insert to the continuation list, and update the
3344 * next response index to slim. This process makes response
3345 * iocb's in the ring available to DMA as fast as possible but
3346 * pays a penalty for a copy operation. Since the iocb is
3347 * only 32 bytes, this penalty is considered small relative to
3348 * the PCI reads for register values and a slim write. When
3349 * the ulpLe field is set, the entire Command has been
3352 entry = lpfc_resp_iocb(phba, pring);
3354 phba->last_completion_time = jiffies;
3355 rspiocbp = __lpfc_sli_get_iocbq(phba);
3356 if (rspiocbp == NULL) {
3357 printk(KERN_ERR "%s: out of buffers! Failing "
3358 "completion.\n", __func__);
3362 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
3363 phba->iocb_rsp_size);
3364 irsp = &rspiocbp->iocb;
3366 if (++pring->sli.sli3.rspidx >= portRspMax)
3367 pring->sli.sli3.rspidx = 0;
3369 if (pring->ringno == LPFC_ELS_RING) {
3370 lpfc_debugfs_slow_ring_trc(phba,
3371 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
3372 *(((uint32_t *) irsp) + 4),
3373 *(((uint32_t *) irsp) + 6),
3374 *(((uint32_t *) irsp) + 7));
3377 writel(pring->sli.sli3.rspidx,
3378 &phba->host_gp[pring->ringno].rspGetInx);
3380 spin_unlock_irqrestore(&phba->hbalock, iflag);
3381 /* Handle the response IOCB */
3382 rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
3383 spin_lock_irqsave(&phba->hbalock, iflag);
3386 * If the port response put pointer has not been updated, sync
3387 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
3388 * response put pointer.
3390 if (pring->sli.sli3.rspidx == portRspPut) {
3391 portRspPut = le32_to_cpu(pgp->rspPutInx);
3393 } /* while (pring->sli.sli3.rspidx != portRspPut) */
3395 if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
3396 /* At least one response entry has been freed */
3397 pring->stats.iocb_rsp_full++;
3398 /* SET RxRE_RSP in Chip Att register */
3399 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3400 writel(status, phba->CAregaddr);
3401 readl(phba->CAregaddr); /* flush */
3403 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3404 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3405 pring->stats.iocb_cmd_empty++;
3407 /* Force update of the local copy of cmdGetInx */
3408 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3409 lpfc_sli_resume_iocb(phba, pring);
3411 if ((pring->lpfc_sli_cmd_available))
3412 (pring->lpfc_sli_cmd_available) (phba, pring);
3416 spin_unlock_irqrestore(&phba->hbalock, iflag);
3421 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
3422 * @phba: Pointer to HBA context object.
3423 * @pring: Pointer to driver SLI ring object.
3424 * @mask: Host attention register mask for this ring.
3426 * This function is called from the worker thread when there is a pending
3427 * ELS response iocb on the driver internal slow-path response iocb worker
3428 * queue. The caller does not hold any lock. The function will remove each
3429 * response iocb from the response worker queue and calls the handle
3430 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3433 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
3434 struct lpfc_sli_ring *pring, uint32_t mask)
3436 struct lpfc_iocbq *irspiocbq;
3437 struct hbq_dmabuf *dmabuf;
3438 struct lpfc_cq_event *cq_event;
3439 unsigned long iflag;
3441 spin_lock_irqsave(&phba->hbalock, iflag);
3442 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
3443 spin_unlock_irqrestore(&phba->hbalock, iflag);
3444 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
3445 /* Get the response iocb from the head of work queue */
3446 spin_lock_irqsave(&phba->hbalock, iflag);
3447 list_remove_head(&phba->sli4_hba.sp_queue_event,
3448 cq_event, struct lpfc_cq_event, list);
3449 spin_unlock_irqrestore(&phba->hbalock, iflag);
3451 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
3452 case CQE_CODE_COMPL_WQE:
3453 irspiocbq = container_of(cq_event, struct lpfc_iocbq,
3455 /* Translate ELS WCQE to response IOCBQ */
3456 irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba,
3459 lpfc_sli_sp_handle_rspiocb(phba, pring,
3462 case CQE_CODE_RECEIVE:
3463 case CQE_CODE_RECEIVE_V1:
3464 dmabuf = container_of(cq_event, struct hbq_dmabuf,
3466 lpfc_sli4_handle_received_buffer(phba, dmabuf);
3475 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
3476 * @phba: Pointer to HBA context object.
3477 * @pring: Pointer to driver SLI ring object.
3479 * This function aborts all iocbs in the given ring and frees all the iocb
3480 * objects in txq. This function issues an abort iocb for all the iocb commands
3481 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3482 * the return of this function. The caller is not required to hold any locks.
3485 lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3487 LIST_HEAD(completions);
3488 struct lpfc_iocbq *iocb, *next_iocb;
3490 if (pring->ringno == LPFC_ELS_RING) {
3491 lpfc_fabric_abort_hba(phba);
3494 /* Error everything on txq and txcmplq
3497 if (phba->sli_rev >= LPFC_SLI_REV4) {
3498 spin_lock_irq(&pring->ring_lock);
3499 list_splice_init(&pring->txq, &completions);
3501 spin_unlock_irq(&pring->ring_lock);
3503 spin_lock_irq(&phba->hbalock);
3504 /* Next issue ABTS for everything on the txcmplq */
3505 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3506 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3507 spin_unlock_irq(&phba->hbalock);
3509 spin_lock_irq(&phba->hbalock);
3510 list_splice_init(&pring->txq, &completions);
3513 /* Next issue ABTS for everything on the txcmplq */
3514 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3515 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3516 spin_unlock_irq(&phba->hbalock);
3519 /* Cancel all the IOCBs from the completions list */
3520 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3525 * lpfc_sli_abort_fcp_rings - Abort all iocbs in all FCP rings
3526 * @phba: Pointer to HBA context object.
3527 * @pring: Pointer to driver SLI ring object.
3529 * This function aborts all iocbs in FCP rings and frees all the iocb
3530 * objects in txq. This function issues an abort iocb for all the iocb commands
3531 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3532 * the return of this function. The caller is not required to hold any locks.
3535 lpfc_sli_abort_fcp_rings(struct lpfc_hba *phba)
3537 struct lpfc_sli *psli = &phba->sli;
3538 struct lpfc_sli_ring *pring;
3541 /* Look on all the FCP Rings for the iotag */
3542 if (phba->sli_rev >= LPFC_SLI_REV4) {
3543 for (i = 0; i < phba->cfg_fcp_io_channel; i++) {
3544 pring = &psli->ring[i + MAX_SLI3_CONFIGURED_RINGS];
3545 lpfc_sli_abort_iocb_ring(phba, pring);
3548 pring = &psli->ring[psli->fcp_ring];
3549 lpfc_sli_abort_iocb_ring(phba, pring);
3555 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
3556 * @phba: Pointer to HBA context object.
3558 * This function flushes all iocbs in the fcp ring and frees all the iocb
3559 * objects in txq and txcmplq. This function will not issue abort iocbs
3560 * for all the iocb commands in txcmplq, they will just be returned with
3561 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3562 * slot has been permanently disabled.
3565 lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba)
3569 struct lpfc_sli *psli = &phba->sli;
3570 struct lpfc_sli_ring *pring;
3573 spin_lock_irq(&phba->hbalock);
3574 /* Indicate the I/O queues are flushed */
3575 phba->hba_flag |= HBA_FCP_IOQ_FLUSH;
3576 spin_unlock_irq(&phba->hbalock);
3578 /* Look on all the FCP Rings for the iotag */
3579 if (phba->sli_rev >= LPFC_SLI_REV4) {
3580 for (i = 0; i < phba->cfg_fcp_io_channel; i++) {
3581 pring = &psli->ring[i + MAX_SLI3_CONFIGURED_RINGS];
3583 spin_lock_irq(&pring->ring_lock);
3584 /* Retrieve everything on txq */
3585 list_splice_init(&pring->txq, &txq);
3586 /* Retrieve everything on the txcmplq */
3587 list_splice_init(&pring->txcmplq, &txcmplq);
3589 pring->txcmplq_cnt = 0;
3590 spin_unlock_irq(&pring->ring_lock);
3593 lpfc_sli_cancel_iocbs(phba, &txq,
3594 IOSTAT_LOCAL_REJECT,
3596 /* Flush the txcmpq */
3597 lpfc_sli_cancel_iocbs(phba, &txcmplq,
3598 IOSTAT_LOCAL_REJECT,
3602 pring = &psli->ring[psli->fcp_ring];
3604 spin_lock_irq(&phba->hbalock);
3605 /* Retrieve everything on txq */
3606 list_splice_init(&pring->txq, &txq);
3607 /* Retrieve everything on the txcmplq */
3608 list_splice_init(&pring->txcmplq, &txcmplq);
3610 pring->txcmplq_cnt = 0;
3611 spin_unlock_irq(&phba->hbalock);
3614 lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
3616 /* Flush the txcmpq */
3617 lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
3623 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
3624 * @phba: Pointer to HBA context object.
3625 * @mask: Bit mask to be checked.
3627 * This function reads the host status register and compares
3628 * with the provided bit mask to check if HBA completed
3629 * the restart. This function will wait in a loop for the
3630 * HBA to complete restart. If the HBA does not restart within
3631 * 15 iterations, the function will reset the HBA again. The
3632 * function returns 1 when HBA fail to restart otherwise returns
3636 lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
3642 /* Read the HBA Host Status Register */
3643 if (lpfc_readl(phba->HSregaddr, &status))
3647 * Check status register every 100ms for 5 retries, then every
3648 * 500ms for 5, then every 2.5 sec for 5, then reset board and
3649 * every 2.5 sec for 4.
3650 * Break our of the loop if errors occurred during init.
3652 while (((status & mask) != mask) &&
3653 !(status & HS_FFERM) &&
3665 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3666 lpfc_sli_brdrestart(phba);
3668 /* Read the HBA Host Status Register */
3669 if (lpfc_readl(phba->HSregaddr, &status)) {
3675 /* Check to see if any errors occurred during init */
3676 if ((status & HS_FFERM) || (i >= 20)) {
3677 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3678 "2751 Adapter failed to restart, "
3679 "status reg x%x, FW Data: A8 x%x AC x%x\n",
3681 readl(phba->MBslimaddr + 0xa8),
3682 readl(phba->MBslimaddr + 0xac));
3683 phba->link_state = LPFC_HBA_ERROR;
3691 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3692 * @phba: Pointer to HBA context object.
3693 * @mask: Bit mask to be checked.
3695 * This function checks the host status register to check if HBA is
3696 * ready. This function will wait in a loop for the HBA to be ready
3697 * If the HBA is not ready , the function will will reset the HBA PCI
3698 * function again. The function returns 1 when HBA fail to be ready
3699 * otherwise returns zero.
3702 lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
3707 /* Read the HBA Host Status Register */
3708 status = lpfc_sli4_post_status_check(phba);
3711 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3712 lpfc_sli_brdrestart(phba);
3713 status = lpfc_sli4_post_status_check(phba);
3716 /* Check to see if any errors occurred during init */
3718 phba->link_state = LPFC_HBA_ERROR;
3721 phba->sli4_hba.intr_enable = 0;
3727 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3728 * @phba: Pointer to HBA context object.
3729 * @mask: Bit mask to be checked.
3731 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3732 * from the API jump table function pointer from the lpfc_hba struct.
3735 lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
3737 return phba->lpfc_sli_brdready(phba, mask);
3740 #define BARRIER_TEST_PATTERN (0xdeadbeef)
3743 * lpfc_reset_barrier - Make HBA ready for HBA reset
3744 * @phba: Pointer to HBA context object.
3746 * This function is called before resetting an HBA. This function is called
3747 * with hbalock held and requests HBA to quiesce DMAs before a reset.
3749 void lpfc_reset_barrier(struct lpfc_hba *phba)
3751 uint32_t __iomem *resp_buf;
3752 uint32_t __iomem *mbox_buf;
3753 volatile uint32_t mbox;
3754 uint32_t hc_copy, ha_copy, resp_data;
3758 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
3759 if (hdrtype != 0x80 ||
3760 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
3761 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
3765 * Tell the other part of the chip to suspend temporarily all
3768 resp_buf = phba->MBslimaddr;
3770 /* Disable the error attention */
3771 if (lpfc_readl(phba->HCregaddr, &hc_copy))
3773 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
3774 readl(phba->HCregaddr); /* flush */
3775 phba->link_flag |= LS_IGNORE_ERATT;
3777 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3779 if (ha_copy & HA_ERATT) {
3780 /* Clear Chip error bit */
3781 writel(HA_ERATT, phba->HAregaddr);
3782 phba->pport->stopped = 1;
3786 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
3787 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
3789 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
3790 mbox_buf = phba->MBslimaddr;
3791 writel(mbox, mbox_buf);
3793 for (i = 0; i < 50; i++) {
3794 if (lpfc_readl((resp_buf + 1), &resp_data))
3796 if (resp_data != ~(BARRIER_TEST_PATTERN))
3802 if (lpfc_readl((resp_buf + 1), &resp_data))
3804 if (resp_data != ~(BARRIER_TEST_PATTERN)) {
3805 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
3806 phba->pport->stopped)
3812 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
3814 for (i = 0; i < 500; i++) {
3815 if (lpfc_readl(resp_buf, &resp_data))
3817 if (resp_data != mbox)
3826 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3828 if (!(ha_copy & HA_ERATT))
3834 if (readl(phba->HAregaddr) & HA_ERATT) {
3835 writel(HA_ERATT, phba->HAregaddr);
3836 phba->pport->stopped = 1;
3840 phba->link_flag &= ~LS_IGNORE_ERATT;
3841 writel(hc_copy, phba->HCregaddr);
3842 readl(phba->HCregaddr); /* flush */
3846 * lpfc_sli_brdkill - Issue a kill_board mailbox command
3847 * @phba: Pointer to HBA context object.
3849 * This function issues a kill_board mailbox command and waits for
3850 * the error attention interrupt. This function is called for stopping
3851 * the firmware processing. The caller is not required to hold any
3852 * locks. This function calls lpfc_hba_down_post function to free
3853 * any pending commands after the kill. The function will return 1 when it
3854 * fails to kill the board else will return 0.
3857 lpfc_sli_brdkill(struct lpfc_hba *phba)
3859 struct lpfc_sli *psli;
3869 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3870 "0329 Kill HBA Data: x%x x%x\n",
3871 phba->pport->port_state, psli->sli_flag);
3873 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3877 /* Disable the error attention */
3878 spin_lock_irq(&phba->hbalock);
3879 if (lpfc_readl(phba->HCregaddr, &status)) {
3880 spin_unlock_irq(&phba->hbalock);
3881 mempool_free(pmb, phba->mbox_mem_pool);
3884 status &= ~HC_ERINT_ENA;
3885 writel(status, phba->HCregaddr);
3886 readl(phba->HCregaddr); /* flush */
3887 phba->link_flag |= LS_IGNORE_ERATT;
3888 spin_unlock_irq(&phba->hbalock);
3890 lpfc_kill_board(phba, pmb);
3891 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3892 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3894 if (retval != MBX_SUCCESS) {
3895 if (retval != MBX_BUSY)
3896 mempool_free(pmb, phba->mbox_mem_pool);
3897 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3898 "2752 KILL_BOARD command failed retval %d\n",
3900 spin_lock_irq(&phba->hbalock);
3901 phba->link_flag &= ~LS_IGNORE_ERATT;
3902 spin_unlock_irq(&phba->hbalock);
3906 spin_lock_irq(&phba->hbalock);
3907 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
3908 spin_unlock_irq(&phba->hbalock);
3910 mempool_free(pmb, phba->mbox_mem_pool);
3912 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
3913 * attention every 100ms for 3 seconds. If we don't get ERATT after
3914 * 3 seconds we still set HBA_ERROR state because the status of the
3915 * board is now undefined.
3917 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3919 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
3921 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3925 del_timer_sync(&psli->mbox_tmo);
3926 if (ha_copy & HA_ERATT) {
3927 writel(HA_ERATT, phba->HAregaddr);
3928 phba->pport->stopped = 1;
3930 spin_lock_irq(&phba->hbalock);
3931 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
3932 psli->mbox_active = NULL;
3933 phba->link_flag &= ~LS_IGNORE_ERATT;
3934 spin_unlock_irq(&phba->hbalock);
3936 lpfc_hba_down_post(phba);
3937 phba->link_state = LPFC_HBA_ERROR;
3939 return ha_copy & HA_ERATT ? 0 : 1;
3943 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
3944 * @phba: Pointer to HBA context object.
3946 * This function resets the HBA by writing HC_INITFF to the control
3947 * register. After the HBA resets, this function resets all the iocb ring
3948 * indices. This function disables PCI layer parity checking during
3950 * This function returns 0 always.
3951 * The caller is not required to hold any locks.
3954 lpfc_sli_brdreset(struct lpfc_hba *phba)
3956 struct lpfc_sli *psli;
3957 struct lpfc_sli_ring *pring;
3964 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3965 "0325 Reset HBA Data: x%x x%x\n",
3966 phba->pport->port_state, psli->sli_flag);
3968 /* perform board reset */
3969 phba->fc_eventTag = 0;
3970 phba->link_events = 0;
3971 phba->pport->fc_myDID = 0;
3972 phba->pport->fc_prevDID = 0;
3974 /* Turn off parity checking and serr during the physical reset */
3975 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
3976 pci_write_config_word(phba->pcidev, PCI_COMMAND,
3978 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
3980 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
3982 /* Now toggle INITFF bit in the Host Control Register */
3983 writel(HC_INITFF, phba->HCregaddr);
3985 readl(phba->HCregaddr); /* flush */
3986 writel(0, phba->HCregaddr);
3987 readl(phba->HCregaddr); /* flush */
3989 /* Restore PCI cmd register */
3990 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
3992 /* Initialize relevant SLI info */
3993 for (i = 0; i < psli->num_rings; i++) {
3994 pring = &psli->ring[i];
3996 pring->sli.sli3.rspidx = 0;
3997 pring->sli.sli3.next_cmdidx = 0;
3998 pring->sli.sli3.local_getidx = 0;
3999 pring->sli.sli3.cmdidx = 0;
4000 pring->missbufcnt = 0;
4003 phba->link_state = LPFC_WARM_START;
4008 * lpfc_sli4_brdreset - Reset a sli-4 HBA
4009 * @phba: Pointer to HBA context object.
4011 * This function resets a SLI4 HBA. This function disables PCI layer parity
4012 * checking during resets the device. The caller is not required to hold
4015 * This function returns 0 always.
4018 lpfc_sli4_brdreset(struct lpfc_hba *phba)
4020 struct lpfc_sli *psli = &phba->sli;
4025 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4026 "0295 Reset HBA Data: x%x x%x x%x\n",
4027 phba->pport->port_state, psli->sli_flag,
4030 /* perform board reset */
4031 phba->fc_eventTag = 0;
4032 phba->link_events = 0;
4033 phba->pport->fc_myDID = 0;
4034 phba->pport->fc_prevDID = 0;
4036 spin_lock_irq(&phba->hbalock);
4037 psli->sli_flag &= ~(LPFC_PROCESS_LA);
4038 phba->fcf.fcf_flag = 0;
4039 spin_unlock_irq(&phba->hbalock);
4041 /* SLI4 INTF 2: if FW dump is being taken skip INIT_PORT */
4042 if (phba->hba_flag & HBA_FW_DUMP_OP) {
4043 phba->hba_flag &= ~HBA_FW_DUMP_OP;
4047 /* Now physically reset the device */
4048 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4049 "0389 Performing PCI function reset!\n");
4051 /* Turn off parity checking and serr during the physical reset */
4052 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
4053 pci_write_config_word(phba->pcidev, PCI_COMMAND, (cfg_value &
4054 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4056 /* Perform FCoE PCI function reset before freeing queue memory */
4057 rc = lpfc_pci_function_reset(phba);
4058 lpfc_sli4_queue_destroy(phba);
4060 /* Restore PCI cmd register */
4061 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
4067 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
4068 * @phba: Pointer to HBA context object.
4070 * This function is called in the SLI initialization code path to
4071 * restart the HBA. The caller is not required to hold any lock.
4072 * This function writes MBX_RESTART mailbox command to the SLIM and
4073 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
4074 * function to free any pending commands. The function enables
4075 * POST only during the first initialization. The function returns zero.
4076 * The function does not guarantee completion of MBX_RESTART mailbox
4077 * command before the return of this function.
4080 lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
4083 struct lpfc_sli *psli;
4084 volatile uint32_t word0;
4085 void __iomem *to_slim;
4086 uint32_t hba_aer_enabled;
4088 spin_lock_irq(&phba->hbalock);
4090 /* Take PCIe device Advanced Error Reporting (AER) state */
4091 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4096 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4097 "0337 Restart HBA Data: x%x x%x\n",
4098 phba->pport->port_state, psli->sli_flag);
4101 mb = (MAILBOX_t *) &word0;
4102 mb->mbxCommand = MBX_RESTART;
4105 lpfc_reset_barrier(phba);
4107 to_slim = phba->MBslimaddr;
4108 writel(*(uint32_t *) mb, to_slim);
4109 readl(to_slim); /* flush */
4111 /* Only skip post after fc_ffinit is completed */
4112 if (phba->pport->port_state)
4113 word0 = 1; /* This is really setting up word1 */
4115 word0 = 0; /* This is really setting up word1 */
4116 to_slim = phba->MBslimaddr + sizeof (uint32_t);
4117 writel(*(uint32_t *) mb, to_slim);
4118 readl(to_slim); /* flush */
4120 lpfc_sli_brdreset(phba);
4121 phba->pport->stopped = 0;
4122 phba->link_state = LPFC_INIT_START;
4124 spin_unlock_irq(&phba->hbalock);
4126 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4127 psli->stats_start = get_seconds();
4129 /* Give the INITFF and Post time to settle. */
4132 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4133 if (hba_aer_enabled)
4134 pci_disable_pcie_error_reporting(phba->pcidev);
4136 lpfc_hba_down_post(phba);
4142 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
4143 * @phba: Pointer to HBA context object.
4145 * This function is called in the SLI initialization code path to restart
4146 * a SLI4 HBA. The caller is not required to hold any lock.
4147 * At the end of the function, it calls lpfc_hba_down_post function to
4148 * free any pending commands.
4151 lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
4153 struct lpfc_sli *psli = &phba->sli;
4154 uint32_t hba_aer_enabled;
4158 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4159 "0296 Restart HBA Data: x%x x%x\n",
4160 phba->pport->port_state, psli->sli_flag);
4162 /* Take PCIe device Advanced Error Reporting (AER) state */
4163 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4165 rc = lpfc_sli4_brdreset(phba);
4167 spin_lock_irq(&phba->hbalock);
4168 phba->pport->stopped = 0;
4169 phba->link_state = LPFC_INIT_START;
4171 spin_unlock_irq(&phba->hbalock);
4173 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4174 psli->stats_start = get_seconds();
4176 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4177 if (hba_aer_enabled)
4178 pci_disable_pcie_error_reporting(phba->pcidev);
4180 lpfc_hba_down_post(phba);
4186 * lpfc_sli_brdrestart - Wrapper func for restarting hba
4187 * @phba: Pointer to HBA context object.
4189 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
4190 * API jump table function pointer from the lpfc_hba struct.
4193 lpfc_sli_brdrestart(struct lpfc_hba *phba)
4195 return phba->lpfc_sli_brdrestart(phba);
4199 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
4200 * @phba: Pointer to HBA context object.
4202 * This function is called after a HBA restart to wait for successful
4203 * restart of the HBA. Successful restart of the HBA is indicated by
4204 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
4205 * iteration, the function will restart the HBA again. The function returns
4206 * zero if HBA successfully restarted else returns negative error code.
4209 lpfc_sli_chipset_init(struct lpfc_hba *phba)
4211 uint32_t status, i = 0;
4213 /* Read the HBA Host Status Register */
4214 if (lpfc_readl(phba->HSregaddr, &status))
4217 /* Check status register to see what current state is */
4219 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
4221 /* Check every 10ms for 10 retries, then every 100ms for 90
4222 * retries, then every 1 sec for 50 retires for a total of
4223 * ~60 seconds before reset the board again and check every
4224 * 1 sec for 50 retries. The up to 60 seconds before the
4225 * board ready is required by the Falcon FIPS zeroization
4226 * complete, and any reset the board in between shall cause
4227 * restart of zeroization, further delay the board ready.
4230 /* Adapter failed to init, timeout, status reg
4232 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4233 "0436 Adapter failed to init, "
4234 "timeout, status reg x%x, "
4235 "FW Data: A8 x%x AC x%x\n", status,
4236 readl(phba->MBslimaddr + 0xa8),
4237 readl(phba->MBslimaddr + 0xac));
4238 phba->link_state = LPFC_HBA_ERROR;
4242 /* Check to see if any errors occurred during init */
4243 if (status & HS_FFERM) {
4244 /* ERROR: During chipset initialization */
4245 /* Adapter failed to init, chipset, status reg
4247 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4248 "0437 Adapter failed to init, "
4249 "chipset, status reg x%x, "
4250 "FW Data: A8 x%x AC x%x\n", status,
4251 readl(phba->MBslimaddr + 0xa8),
4252 readl(phba->MBslimaddr + 0xac));
4253 phba->link_state = LPFC_HBA_ERROR;
4266 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4267 lpfc_sli_brdrestart(phba);
4269 /* Read the HBA Host Status Register */
4270 if (lpfc_readl(phba->HSregaddr, &status))
4274 /* Check to see if any errors occurred during init */
4275 if (status & HS_FFERM) {
4276 /* ERROR: During chipset initialization */
4277 /* Adapter failed to init, chipset, status reg <status> */
4278 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4279 "0438 Adapter failed to init, chipset, "
4281 "FW Data: A8 x%x AC x%x\n", status,
4282 readl(phba->MBslimaddr + 0xa8),
4283 readl(phba->MBslimaddr + 0xac));
4284 phba->link_state = LPFC_HBA_ERROR;
4288 /* Clear all interrupt enable conditions */
4289 writel(0, phba->HCregaddr);
4290 readl(phba->HCregaddr); /* flush */
4292 /* setup host attn register */
4293 writel(0xffffffff, phba->HAregaddr);
4294 readl(phba->HAregaddr); /* flush */
4299 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
4301 * This function calculates and returns the number of HBQs required to be
4305 lpfc_sli_hbq_count(void)
4307 return ARRAY_SIZE(lpfc_hbq_defs);
4311 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
4313 * This function adds the number of hbq entries in every HBQ to get
4314 * the total number of hbq entries required for the HBA and returns
4318 lpfc_sli_hbq_entry_count(void)
4320 int hbq_count = lpfc_sli_hbq_count();
4324 for (i = 0; i < hbq_count; ++i)
4325 count += lpfc_hbq_defs[i]->entry_count;
4330 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
4332 * This function calculates amount of memory required for all hbq entries
4333 * to be configured and returns the total memory required.
4336 lpfc_sli_hbq_size(void)
4338 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
4342 * lpfc_sli_hbq_setup - configure and initialize HBQs
4343 * @phba: Pointer to HBA context object.
4345 * This function is called during the SLI initialization to configure
4346 * all the HBQs and post buffers to the HBQ. The caller is not
4347 * required to hold any locks. This function will return zero if successful
4348 * else it will return negative error code.
4351 lpfc_sli_hbq_setup(struct lpfc_hba *phba)
4353 int hbq_count = lpfc_sli_hbq_count();
4357 uint32_t hbq_entry_index;
4359 /* Get a Mailbox buffer to setup mailbox
4360 * commands for HBA initialization
4362 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4369 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
4370 phba->link_state = LPFC_INIT_MBX_CMDS;
4371 phba->hbq_in_use = 1;
4373 hbq_entry_index = 0;
4374 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
4375 phba->hbqs[hbqno].next_hbqPutIdx = 0;
4376 phba->hbqs[hbqno].hbqPutIdx = 0;
4377 phba->hbqs[hbqno].local_hbqGetIdx = 0;
4378 phba->hbqs[hbqno].entry_count =
4379 lpfc_hbq_defs[hbqno]->entry_count;
4380 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
4381 hbq_entry_index, pmb);
4382 hbq_entry_index += phba->hbqs[hbqno].entry_count;
4384 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
4385 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
4386 mbxStatus <status>, ring <num> */
4388 lpfc_printf_log(phba, KERN_ERR,
4389 LOG_SLI | LOG_VPORT,
4390 "1805 Adapter failed to init. "
4391 "Data: x%x x%x x%x\n",
4393 pmbox->mbxStatus, hbqno);
4395 phba->link_state = LPFC_HBA_ERROR;
4396 mempool_free(pmb, phba->mbox_mem_pool);
4400 phba->hbq_count = hbq_count;
4402 mempool_free(pmb, phba->mbox_mem_pool);
4404 /* Initially populate or replenish the HBQs */
4405 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
4406 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
4411 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
4412 * @phba: Pointer to HBA context object.
4414 * This function is called during the SLI initialization to configure
4415 * all the HBQs and post buffers to the HBQ. The caller is not
4416 * required to hold any locks. This function will return zero if successful
4417 * else it will return negative error code.
4420 lpfc_sli4_rb_setup(struct lpfc_hba *phba)
4422 phba->hbq_in_use = 1;
4423 phba->hbqs[0].entry_count = lpfc_hbq_defs[0]->entry_count;
4424 phba->hbq_count = 1;
4425 /* Initially populate or replenish the HBQs */
4426 lpfc_sli_hbqbuf_init_hbqs(phba, 0);
4431 * lpfc_sli_config_port - Issue config port mailbox command
4432 * @phba: Pointer to HBA context object.
4433 * @sli_mode: sli mode - 2/3
4435 * This function is called by the sli intialization code path
4436 * to issue config_port mailbox command. This function restarts the
4437 * HBA firmware and issues a config_port mailbox command to configure
4438 * the SLI interface in the sli mode specified by sli_mode
4439 * variable. The caller is not required to hold any locks.
4440 * The function returns 0 if successful, else returns negative error
4444 lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
4447 uint32_t resetcount = 0, rc = 0, done = 0;
4449 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4451 phba->link_state = LPFC_HBA_ERROR;
4455 phba->sli_rev = sli_mode;
4456 while (resetcount < 2 && !done) {
4457 spin_lock_irq(&phba->hbalock);
4458 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
4459 spin_unlock_irq(&phba->hbalock);
4460 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4461 lpfc_sli_brdrestart(phba);
4462 rc = lpfc_sli_chipset_init(phba);
4466 spin_lock_irq(&phba->hbalock);
4467 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4468 spin_unlock_irq(&phba->hbalock);
4471 /* Call pre CONFIG_PORT mailbox command initialization. A
4472 * value of 0 means the call was successful. Any other
4473 * nonzero value is a failure, but if ERESTART is returned,
4474 * the driver may reset the HBA and try again.
4476 rc = lpfc_config_port_prep(phba);
4477 if (rc == -ERESTART) {
4478 phba->link_state = LPFC_LINK_UNKNOWN;
4483 phba->link_state = LPFC_INIT_MBX_CMDS;
4484 lpfc_config_port(phba, pmb);
4485 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
4486 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
4487 LPFC_SLI3_HBQ_ENABLED |
4488 LPFC_SLI3_CRP_ENABLED |
4489 LPFC_SLI3_BG_ENABLED |
4490 LPFC_SLI3_DSS_ENABLED);
4491 if (rc != MBX_SUCCESS) {
4492 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4493 "0442 Adapter failed to init, mbxCmd x%x "
4494 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
4495 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
4496 spin_lock_irq(&phba->hbalock);
4497 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
4498 spin_unlock_irq(&phba->hbalock);
4501 /* Allow asynchronous mailbox command to go through */
4502 spin_lock_irq(&phba->hbalock);
4503 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
4504 spin_unlock_irq(&phba->hbalock);
4507 if ((pmb->u.mb.un.varCfgPort.casabt == 1) &&
4508 (pmb->u.mb.un.varCfgPort.gasabt == 0))
4509 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4510 "3110 Port did not grant ASABT\n");
4515 goto do_prep_failed;
4517 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
4518 if (!pmb->u.mb.un.varCfgPort.cMA) {
4520 goto do_prep_failed;
4522 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
4523 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
4524 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
4525 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
4526 phba->max_vpi : phba->max_vports;
4530 phba->fips_level = 0;
4531 phba->fips_spec_rev = 0;
4532 if (pmb->u.mb.un.varCfgPort.gdss) {
4533 phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
4534 phba->fips_level = pmb->u.mb.un.varCfgPort.fips_level;
4535 phba->fips_spec_rev = pmb->u.mb.un.varCfgPort.fips_rev;
4536 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4537 "2850 Security Crypto Active. FIPS x%d "
4539 phba->fips_level, phba->fips_spec_rev);
4541 if (pmb->u.mb.un.varCfgPort.sec_err) {
4542 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4543 "2856 Config Port Security Crypto "
4545 pmb->u.mb.un.varCfgPort.sec_err);
4547 if (pmb->u.mb.un.varCfgPort.gerbm)
4548 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
4549 if (pmb->u.mb.un.varCfgPort.gcrp)
4550 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
4552 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
4553 phba->port_gp = phba->mbox->us.s3_pgp.port;
4555 if (phba->cfg_enable_bg) {
4556 if (pmb->u.mb.un.varCfgPort.gbg)
4557 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
4559 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4560 "0443 Adapter did not grant "
4564 phba->hbq_get = NULL;
4565 phba->port_gp = phba->mbox->us.s2.port;
4569 mempool_free(pmb, phba->mbox_mem_pool);
4575 * lpfc_sli_hba_setup - SLI intialization function
4576 * @phba: Pointer to HBA context object.
4578 * This function is the main SLI intialization function. This function
4579 * is called by the HBA intialization code, HBA reset code and HBA
4580 * error attention handler code. Caller is not required to hold any
4581 * locks. This function issues config_port mailbox command to configure
4582 * the SLI, setup iocb rings and HBQ rings. In the end the function
4583 * calls the config_port_post function to issue init_link mailbox
4584 * command and to start the discovery. The function will return zero
4585 * if successful, else it will return negative error code.
4588 lpfc_sli_hba_setup(struct lpfc_hba *phba)
4594 switch (lpfc_sli_mode) {
4596 if (phba->cfg_enable_npiv) {
4597 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4598 "1824 NPIV enabled: Override lpfc_sli_mode "
4599 "parameter (%d) to auto (0).\n",
4609 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4610 "1819 Unrecognized lpfc_sli_mode "
4611 "parameter: %d.\n", lpfc_sli_mode);
4616 rc = lpfc_sli_config_port(phba, mode);
4618 if (rc && lpfc_sli_mode == 3)
4619 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4620 "1820 Unable to select SLI-3. "
4621 "Not supported by adapter.\n");
4622 if (rc && mode != 2)
4623 rc = lpfc_sli_config_port(phba, 2);
4625 goto lpfc_sli_hba_setup_error;
4627 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4628 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
4629 rc = pci_enable_pcie_error_reporting(phba->pcidev);
4631 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4632 "2709 This device supports "
4633 "Advanced Error Reporting (AER)\n");
4634 spin_lock_irq(&phba->hbalock);
4635 phba->hba_flag |= HBA_AER_ENABLED;
4636 spin_unlock_irq(&phba->hbalock);
4638 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4639 "2708 This device does not support "
4640 "Advanced Error Reporting (AER): %d\n",
4642 phba->cfg_aer_support = 0;
4646 if (phba->sli_rev == 3) {
4647 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
4648 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
4650 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
4651 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
4652 phba->sli3_options = 0;
4655 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4656 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
4657 phba->sli_rev, phba->max_vpi);
4658 rc = lpfc_sli_ring_map(phba);
4661 goto lpfc_sli_hba_setup_error;
4663 /* Initialize VPIs. */
4664 if (phba->sli_rev == LPFC_SLI_REV3) {
4666 * The VPI bitmask and physical ID array are allocated
4667 * and initialized once only - at driver load. A port
4668 * reset doesn't need to reinitialize this memory.
4670 if ((phba->vpi_bmask == NULL) && (phba->vpi_ids == NULL)) {
4671 longs = (phba->max_vpi + BITS_PER_LONG) / BITS_PER_LONG;
4672 phba->vpi_bmask = kzalloc(longs * sizeof(unsigned long),
4674 if (!phba->vpi_bmask) {
4676 goto lpfc_sli_hba_setup_error;
4679 phba->vpi_ids = kzalloc(
4680 (phba->max_vpi+1) * sizeof(uint16_t),
4682 if (!phba->vpi_ids) {
4683 kfree(phba->vpi_bmask);
4685 goto lpfc_sli_hba_setup_error;
4687 for (i = 0; i < phba->max_vpi; i++)
4688 phba->vpi_ids[i] = i;
4693 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
4694 rc = lpfc_sli_hbq_setup(phba);
4696 goto lpfc_sli_hba_setup_error;
4698 spin_lock_irq(&phba->hbalock);
4699 phba->sli.sli_flag |= LPFC_PROCESS_LA;
4700 spin_unlock_irq(&phba->hbalock);
4702 rc = lpfc_config_port_post(phba);
4704 goto lpfc_sli_hba_setup_error;
4708 lpfc_sli_hba_setup_error:
4709 phba->link_state = LPFC_HBA_ERROR;
4710 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4711 "0445 Firmware initialization failed\n");
4716 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
4717 * @phba: Pointer to HBA context object.
4718 * @mboxq: mailbox pointer.
4719 * This function issue a dump mailbox command to read config region
4720 * 23 and parse the records in the region and populate driver
4724 lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba)
4726 LPFC_MBOXQ_t *mboxq;
4727 struct lpfc_dmabuf *mp;
4728 struct lpfc_mqe *mqe;
4729 uint32_t data_length;
4732 /* Program the default value of vlan_id and fc_map */
4733 phba->valid_vlan = 0;
4734 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4735 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4736 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4738 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4742 mqe = &mboxq->u.mqe;
4743 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq)) {
4745 goto out_free_mboxq;
4748 mp = (struct lpfc_dmabuf *) mboxq->context1;
4749 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4751 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4752 "(%d):2571 Mailbox cmd x%x Status x%x "
4753 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4754 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4755 "CQ: x%x x%x x%x x%x\n",
4756 mboxq->vport ? mboxq->vport->vpi : 0,
4757 bf_get(lpfc_mqe_command, mqe),
4758 bf_get(lpfc_mqe_status, mqe),
4759 mqe->un.mb_words[0], mqe->un.mb_words[1],
4760 mqe->un.mb_words[2], mqe->un.mb_words[3],
4761 mqe->un.mb_words[4], mqe->un.mb_words[5],
4762 mqe->un.mb_words[6], mqe->un.mb_words[7],
4763 mqe->un.mb_words[8], mqe->un.mb_words[9],
4764 mqe->un.mb_words[10], mqe->un.mb_words[11],
4765 mqe->un.mb_words[12], mqe->un.mb_words[13],
4766 mqe->un.mb_words[14], mqe->un.mb_words[15],
4767 mqe->un.mb_words[16], mqe->un.mb_words[50],
4769 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
4770 mboxq->mcqe.trailer);
4773 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4776 goto out_free_mboxq;
4778 data_length = mqe->un.mb_words[5];
4779 if (data_length > DMP_RGN23_SIZE) {
4780 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4783 goto out_free_mboxq;
4786 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
4787 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4792 mempool_free(mboxq, phba->mbox_mem_pool);
4797 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
4798 * @phba: pointer to lpfc hba data structure.
4799 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
4800 * @vpd: pointer to the memory to hold resulting port vpd data.
4801 * @vpd_size: On input, the number of bytes allocated to @vpd.
4802 * On output, the number of data bytes in @vpd.
4804 * This routine executes a READ_REV SLI4 mailbox command. In
4805 * addition, this routine gets the port vpd data.
4809 * -ENOMEM - could not allocated memory.
4812 lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
4813 uint8_t *vpd, uint32_t *vpd_size)
4817 struct lpfc_dmabuf *dmabuf;
4818 struct lpfc_mqe *mqe;
4820 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4825 * Get a DMA buffer for the vpd data resulting from the READ_REV
4828 dma_size = *vpd_size;
4829 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, dma_size,
4830 &dmabuf->phys, GFP_KERNEL);
4831 if (!dmabuf->virt) {
4837 * The SLI4 implementation of READ_REV conflicts at word1,
4838 * bits 31:16 and SLI4 adds vpd functionality not present
4839 * in SLI3. This code corrects the conflicts.
4841 lpfc_read_rev(phba, mboxq);
4842 mqe = &mboxq->u.mqe;
4843 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
4844 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
4845 mqe->un.read_rev.word1 &= 0x0000FFFF;
4846 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
4847 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
4849 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4851 dma_free_coherent(&phba->pcidev->dev, dma_size,
4852 dmabuf->virt, dmabuf->phys);
4858 * The available vpd length cannot be bigger than the
4859 * DMA buffer passed to the port. Catch the less than
4860 * case and update the caller's size.
4862 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
4863 *vpd_size = mqe->un.read_rev.avail_vpd_len;
4865 memcpy(vpd, dmabuf->virt, *vpd_size);
4867 dma_free_coherent(&phba->pcidev->dev, dma_size,
4868 dmabuf->virt, dmabuf->phys);
4874 * lpfc_sli4_retrieve_pport_name - Retrieve SLI4 device physical port name
4875 * @phba: pointer to lpfc hba data structure.
4877 * This routine retrieves SLI4 device physical port name this PCI function
4882 * otherwise - failed to retrieve physical port name
4885 lpfc_sli4_retrieve_pport_name(struct lpfc_hba *phba)
4887 LPFC_MBOXQ_t *mboxq;
4888 struct lpfc_mbx_get_cntl_attributes *mbx_cntl_attr;
4889 struct lpfc_controller_attribute *cntl_attr;
4890 struct lpfc_mbx_get_port_name *get_port_name;
4891 void *virtaddr = NULL;
4892 uint32_t alloclen, reqlen;
4893 uint32_t shdr_status, shdr_add_status;
4894 union lpfc_sli4_cfg_shdr *shdr;
4895 char cport_name = 0;
4898 /* We assume nothing at this point */
4899 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
4900 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_NON;
4902 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4905 /* obtain link type and link number via READ_CONFIG */
4906 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
4907 lpfc_sli4_read_config(phba);
4908 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL)
4909 goto retrieve_ppname;
4911 /* obtain link type and link number via COMMON_GET_CNTL_ATTRIBUTES */
4912 reqlen = sizeof(struct lpfc_mbx_get_cntl_attributes);
4913 alloclen = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
4914 LPFC_MBOX_OPCODE_GET_CNTL_ATTRIBUTES, reqlen,
4915 LPFC_SLI4_MBX_NEMBED);
4916 if (alloclen < reqlen) {
4917 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4918 "3084 Allocated DMA memory size (%d) is "
4919 "less than the requested DMA memory size "
4920 "(%d)\n", alloclen, reqlen);
4922 goto out_free_mboxq;
4924 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4925 virtaddr = mboxq->sge_array->addr[0];
4926 mbx_cntl_attr = (struct lpfc_mbx_get_cntl_attributes *)virtaddr;
4927 shdr = &mbx_cntl_attr->cfg_shdr;
4928 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
4929 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
4930 if (shdr_status || shdr_add_status || rc) {
4931 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4932 "3085 Mailbox x%x (x%x/x%x) failed, "
4933 "rc:x%x, status:x%x, add_status:x%x\n",
4934 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4935 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
4936 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
4937 rc, shdr_status, shdr_add_status);
4939 goto out_free_mboxq;
4941 cntl_attr = &mbx_cntl_attr->cntl_attr;
4942 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
4943 phba->sli4_hba.lnk_info.lnk_tp =
4944 bf_get(lpfc_cntl_attr_lnk_type, cntl_attr);
4945 phba->sli4_hba.lnk_info.lnk_no =
4946 bf_get(lpfc_cntl_attr_lnk_numb, cntl_attr);
4947 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4948 "3086 lnk_type:%d, lnk_numb:%d\n",
4949 phba->sli4_hba.lnk_info.lnk_tp,
4950 phba->sli4_hba.lnk_info.lnk_no);
4953 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
4954 LPFC_MBOX_OPCODE_GET_PORT_NAME,
4955 sizeof(struct lpfc_mbx_get_port_name) -
4956 sizeof(struct lpfc_sli4_cfg_mhdr),
4957 LPFC_SLI4_MBX_EMBED);
4958 get_port_name = &mboxq->u.mqe.un.get_port_name;
4959 shdr = (union lpfc_sli4_cfg_shdr *)&get_port_name->header.cfg_shdr;
4960 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_OPCODE_VERSION_1);
4961 bf_set(lpfc_mbx_get_port_name_lnk_type, &get_port_name->u.request,
4962 phba->sli4_hba.lnk_info.lnk_tp);
4963 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4964 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
4965 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
4966 if (shdr_status || shdr_add_status || rc) {
4967 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4968 "3087 Mailbox x%x (x%x/x%x) failed: "
4969 "rc:x%x, status:x%x, add_status:x%x\n",
4970 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4971 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
4972 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
4973 rc, shdr_status, shdr_add_status);
4975 goto out_free_mboxq;
4977 switch (phba->sli4_hba.lnk_info.lnk_no) {
4978 case LPFC_LINK_NUMBER_0:
4979 cport_name = bf_get(lpfc_mbx_get_port_name_name0,
4980 &get_port_name->u.response);
4981 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4983 case LPFC_LINK_NUMBER_1:
4984 cport_name = bf_get(lpfc_mbx_get_port_name_name1,
4985 &get_port_name->u.response);
4986 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4988 case LPFC_LINK_NUMBER_2:
4989 cport_name = bf_get(lpfc_mbx_get_port_name_name2,
4990 &get_port_name->u.response);
4991 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4993 case LPFC_LINK_NUMBER_3:
4994 cport_name = bf_get(lpfc_mbx_get_port_name_name3,
4995 &get_port_name->u.response);
4996 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5002 if (phba->sli4_hba.pport_name_sta == LPFC_SLI4_PPNAME_GET) {
5003 phba->Port[0] = cport_name;
5004 phba->Port[1] = '\0';
5005 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5006 "3091 SLI get port name: %s\n", phba->Port);
5010 if (rc != MBX_TIMEOUT) {
5011 if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
5012 lpfc_sli4_mbox_cmd_free(phba, mboxq);
5014 mempool_free(mboxq, phba->mbox_mem_pool);
5020 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
5021 * @phba: pointer to lpfc hba data structure.
5023 * This routine is called to explicitly arm the SLI4 device's completion and
5027 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
5031 lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM);
5032 lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM);
5034 if (phba->sli4_hba.fcp_cq) {
5036 lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[fcp_eqidx],
5038 } while (++fcp_eqidx < phba->cfg_fcp_io_channel);
5042 lpfc_sli4_cq_release(phba->sli4_hba.oas_cq, LPFC_QUEUE_REARM);
5044 if (phba->sli4_hba.hba_eq) {
5045 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel;
5047 lpfc_sli4_eq_release(phba->sli4_hba.hba_eq[fcp_eqidx],
5052 lpfc_sli4_eq_release(phba->sli4_hba.fof_eq, LPFC_QUEUE_REARM);
5056 * lpfc_sli4_get_avail_extnt_rsrc - Get available resource extent count.
5057 * @phba: Pointer to HBA context object.
5058 * @type: The resource extent type.
5059 * @extnt_count: buffer to hold port available extent count.
5060 * @extnt_size: buffer to hold element count per extent.
5062 * This function calls the port and retrievs the number of available
5063 * extents and their size for a particular extent type.
5065 * Returns: 0 if successful. Nonzero otherwise.
5068 lpfc_sli4_get_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type,
5069 uint16_t *extnt_count, uint16_t *extnt_size)
5074 struct lpfc_mbx_get_rsrc_extent_info *rsrc_info;
5077 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5081 /* Find out how many extents are available for this resource type */
5082 length = (sizeof(struct lpfc_mbx_get_rsrc_extent_info) -
5083 sizeof(struct lpfc_sli4_cfg_mhdr));
5084 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5085 LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO,
5086 length, LPFC_SLI4_MBX_EMBED);
5088 /* Send an extents count of 0 - the GET doesn't use it. */
5089 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5090 LPFC_SLI4_MBX_EMBED);
5096 if (!phba->sli4_hba.intr_enable)
5097 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5099 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5100 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5107 rsrc_info = &mbox->u.mqe.un.rsrc_extent_info;
5108 if (bf_get(lpfc_mbox_hdr_status,
5109 &rsrc_info->header.cfg_shdr.response)) {
5110 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5111 "2930 Failed to get resource extents "
5112 "Status 0x%x Add'l Status 0x%x\n",
5113 bf_get(lpfc_mbox_hdr_status,
5114 &rsrc_info->header.cfg_shdr.response),
5115 bf_get(lpfc_mbox_hdr_add_status,
5116 &rsrc_info->header.cfg_shdr.response));
5121 *extnt_count = bf_get(lpfc_mbx_get_rsrc_extent_info_cnt,
5123 *extnt_size = bf_get(lpfc_mbx_get_rsrc_extent_info_size,
5126 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5127 "3162 Retrieved extents type-%d from port: count:%d, "
5128 "size:%d\n", type, *extnt_count, *extnt_size);
5131 mempool_free(mbox, phba->mbox_mem_pool);
5136 * lpfc_sli4_chk_avail_extnt_rsrc - Check for available SLI4 resource extents.
5137 * @phba: Pointer to HBA context object.
5138 * @type: The extent type to check.
5140 * This function reads the current available extents from the port and checks
5141 * if the extent count or extent size has changed since the last access.
5142 * Callers use this routine post port reset to understand if there is a
5143 * extent reprovisioning requirement.
5146 * -Error: error indicates problem.
5147 * 1: Extent count or size has changed.
5151 lpfc_sli4_chk_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type)
5153 uint16_t curr_ext_cnt, rsrc_ext_cnt;
5154 uint16_t size_diff, rsrc_ext_size;
5156 struct lpfc_rsrc_blks *rsrc_entry;
5157 struct list_head *rsrc_blk_list = NULL;
5161 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5168 case LPFC_RSC_TYPE_FCOE_RPI:
5169 rsrc_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5171 case LPFC_RSC_TYPE_FCOE_VPI:
5172 rsrc_blk_list = &phba->lpfc_vpi_blk_list;
5174 case LPFC_RSC_TYPE_FCOE_XRI:
5175 rsrc_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5177 case LPFC_RSC_TYPE_FCOE_VFI:
5178 rsrc_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5184 list_for_each_entry(rsrc_entry, rsrc_blk_list, list) {
5186 if (rsrc_entry->rsrc_size != rsrc_ext_size)
5190 if (curr_ext_cnt != rsrc_ext_cnt || size_diff != 0)
5197 * lpfc_sli4_cfg_post_extnts -
5198 * @phba: Pointer to HBA context object.
5199 * @extnt_cnt - number of available extents.
5200 * @type - the extent type (rpi, xri, vfi, vpi).
5201 * @emb - buffer to hold either MBX_EMBED or MBX_NEMBED operation.
5202 * @mbox - pointer to the caller's allocated mailbox structure.
5204 * This function executes the extents allocation request. It also
5205 * takes care of the amount of memory needed to allocate or get the
5206 * allocated extents. It is the caller's responsibility to evaluate
5210 * -Error: Error value describes the condition found.
5214 lpfc_sli4_cfg_post_extnts(struct lpfc_hba *phba, uint16_t extnt_cnt,
5215 uint16_t type, bool *emb, LPFC_MBOXQ_t *mbox)
5220 uint32_t alloc_len, mbox_tmo;
5222 /* Calculate the total requested length of the dma memory */
5223 req_len = extnt_cnt * sizeof(uint16_t);
5226 * Calculate the size of an embedded mailbox. The uint32_t
5227 * accounts for extents-specific word.
5229 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
5233 * Presume the allocation and response will fit into an embedded
5234 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5236 *emb = LPFC_SLI4_MBX_EMBED;
5237 if (req_len > emb_len) {
5238 req_len = extnt_cnt * sizeof(uint16_t) +
5239 sizeof(union lpfc_sli4_cfg_shdr) +
5241 *emb = LPFC_SLI4_MBX_NEMBED;
5244 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5245 LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT,
5247 if (alloc_len < req_len) {
5248 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5249 "2982 Allocated DMA memory size (x%x) is "
5250 "less than the requested DMA memory "
5251 "size (x%x)\n", alloc_len, req_len);
5254 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, extnt_cnt, type, *emb);
5258 if (!phba->sli4_hba.intr_enable)
5259 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5261 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5262 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5271 * lpfc_sli4_alloc_extent - Allocate an SLI4 resource extent.
5272 * @phba: Pointer to HBA context object.
5273 * @type: The resource extent type to allocate.
5275 * This function allocates the number of elements for the specified
5279 lpfc_sli4_alloc_extent(struct lpfc_hba *phba, uint16_t type)
5282 uint16_t rsrc_id_cnt, rsrc_cnt, rsrc_size;
5283 uint16_t rsrc_id, rsrc_start, j, k;
5286 unsigned long longs;
5287 unsigned long *bmask;
5288 struct lpfc_rsrc_blks *rsrc_blks;
5291 struct lpfc_id_range *id_array = NULL;
5292 void *virtaddr = NULL;
5293 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5294 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5295 struct list_head *ext_blk_list;
5297 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5303 if ((rsrc_cnt == 0) || (rsrc_size == 0)) {
5304 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5305 "3009 No available Resource Extents "
5306 "for resource type 0x%x: Count: 0x%x, "
5307 "Size 0x%x\n", type, rsrc_cnt,
5312 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_INIT | LOG_SLI,
5313 "2903 Post resource extents type-0x%x: "
5314 "count:%d, size %d\n", type, rsrc_cnt, rsrc_size);
5316 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5320 rc = lpfc_sli4_cfg_post_extnts(phba, rsrc_cnt, type, &emb, mbox);
5327 * Figure out where the response is located. Then get local pointers
5328 * to the response data. The port does not guarantee to respond to
5329 * all extents counts request so update the local variable with the
5330 * allocated count from the port.
5332 if (emb == LPFC_SLI4_MBX_EMBED) {
5333 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
5334 id_array = &rsrc_ext->u.rsp.id[0];
5335 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
5337 virtaddr = mbox->sge_array->addr[0];
5338 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
5339 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
5340 id_array = &n_rsrc->id;
5343 longs = ((rsrc_cnt * rsrc_size) + BITS_PER_LONG - 1) / BITS_PER_LONG;
5344 rsrc_id_cnt = rsrc_cnt * rsrc_size;
5347 * Based on the resource size and count, correct the base and max
5350 length = sizeof(struct lpfc_rsrc_blks);
5352 case LPFC_RSC_TYPE_FCOE_RPI:
5353 phba->sli4_hba.rpi_bmask = kzalloc(longs *
5354 sizeof(unsigned long),
5356 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5360 phba->sli4_hba.rpi_ids = kzalloc(rsrc_id_cnt *
5363 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5364 kfree(phba->sli4_hba.rpi_bmask);
5370 * The next_rpi was initialized with the maximum available
5371 * count but the port may allocate a smaller number. Catch
5372 * that case and update the next_rpi.
5374 phba->sli4_hba.next_rpi = rsrc_id_cnt;
5376 /* Initialize local ptrs for common extent processing later. */
5377 bmask = phba->sli4_hba.rpi_bmask;
5378 ids = phba->sli4_hba.rpi_ids;
5379 ext_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5381 case LPFC_RSC_TYPE_FCOE_VPI:
5382 phba->vpi_bmask = kzalloc(longs *
5383 sizeof(unsigned long),
5385 if (unlikely(!phba->vpi_bmask)) {
5389 phba->vpi_ids = kzalloc(rsrc_id_cnt *
5392 if (unlikely(!phba->vpi_ids)) {
5393 kfree(phba->vpi_bmask);
5398 /* Initialize local ptrs for common extent processing later. */
5399 bmask = phba->vpi_bmask;
5400 ids = phba->vpi_ids;
5401 ext_blk_list = &phba->lpfc_vpi_blk_list;
5403 case LPFC_RSC_TYPE_FCOE_XRI:
5404 phba->sli4_hba.xri_bmask = kzalloc(longs *
5405 sizeof(unsigned long),
5407 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5411 phba->sli4_hba.max_cfg_param.xri_used = 0;
5412 phba->sli4_hba.xri_ids = kzalloc(rsrc_id_cnt *
5415 if (unlikely(!phba->sli4_hba.xri_ids)) {
5416 kfree(phba->sli4_hba.xri_bmask);
5421 /* Initialize local ptrs for common extent processing later. */
5422 bmask = phba->sli4_hba.xri_bmask;
5423 ids = phba->sli4_hba.xri_ids;
5424 ext_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5426 case LPFC_RSC_TYPE_FCOE_VFI:
5427 phba->sli4_hba.vfi_bmask = kzalloc(longs *
5428 sizeof(unsigned long),
5430 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5434 phba->sli4_hba.vfi_ids = kzalloc(rsrc_id_cnt *
5437 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5438 kfree(phba->sli4_hba.vfi_bmask);
5443 /* Initialize local ptrs for common extent processing later. */
5444 bmask = phba->sli4_hba.vfi_bmask;
5445 ids = phba->sli4_hba.vfi_ids;
5446 ext_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5449 /* Unsupported Opcode. Fail call. */
5453 ext_blk_list = NULL;
5458 * Complete initializing the extent configuration with the
5459 * allocated ids assigned to this function. The bitmask serves
5460 * as an index into the array and manages the available ids. The
5461 * array just stores the ids communicated to the port via the wqes.
5463 for (i = 0, j = 0, k = 0; i < rsrc_cnt; i++) {
5465 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_0,
5468 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_1,
5471 rsrc_blks = kzalloc(length, GFP_KERNEL);
5472 if (unlikely(!rsrc_blks)) {
5478 rsrc_blks->rsrc_start = rsrc_id;
5479 rsrc_blks->rsrc_size = rsrc_size;
5480 list_add_tail(&rsrc_blks->list, ext_blk_list);
5481 rsrc_start = rsrc_id;
5482 if ((type == LPFC_RSC_TYPE_FCOE_XRI) && (j == 0))
5483 phba->sli4_hba.scsi_xri_start = rsrc_start +
5484 lpfc_sli4_get_els_iocb_cnt(phba);
5486 while (rsrc_id < (rsrc_start + rsrc_size)) {
5491 /* Entire word processed. Get next word.*/
5496 lpfc_sli4_mbox_cmd_free(phba, mbox);
5501 * lpfc_sli4_dealloc_extent - Deallocate an SLI4 resource extent.
5502 * @phba: Pointer to HBA context object.
5503 * @type: the extent's type.
5505 * This function deallocates all extents of a particular resource type.
5506 * SLI4 does not allow for deallocating a particular extent range. It
5507 * is the caller's responsibility to release all kernel memory resources.
5510 lpfc_sli4_dealloc_extent(struct lpfc_hba *phba, uint16_t type)
5513 uint32_t length, mbox_tmo = 0;
5515 struct lpfc_mbx_dealloc_rsrc_extents *dealloc_rsrc;
5516 struct lpfc_rsrc_blks *rsrc_blk, *rsrc_blk_next;
5518 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5523 * This function sends an embedded mailbox because it only sends the
5524 * the resource type. All extents of this type are released by the
5527 length = (sizeof(struct lpfc_mbx_dealloc_rsrc_extents) -
5528 sizeof(struct lpfc_sli4_cfg_mhdr));
5529 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5530 LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT,
5531 length, LPFC_SLI4_MBX_EMBED);
5533 /* Send an extents count of 0 - the dealloc doesn't use it. */
5534 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5535 LPFC_SLI4_MBX_EMBED);
5540 if (!phba->sli4_hba.intr_enable)
5541 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5543 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5544 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5551 dealloc_rsrc = &mbox->u.mqe.un.dealloc_rsrc_extents;
5552 if (bf_get(lpfc_mbox_hdr_status,
5553 &dealloc_rsrc->header.cfg_shdr.response)) {
5554 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5555 "2919 Failed to release resource extents "
5556 "for type %d - Status 0x%x Add'l Status 0x%x. "
5557 "Resource memory not released.\n",
5559 bf_get(lpfc_mbox_hdr_status,
5560 &dealloc_rsrc->header.cfg_shdr.response),
5561 bf_get(lpfc_mbox_hdr_add_status,
5562 &dealloc_rsrc->header.cfg_shdr.response));
5567 /* Release kernel memory resources for the specific type. */
5569 case LPFC_RSC_TYPE_FCOE_VPI:
5570 kfree(phba->vpi_bmask);
5571 kfree(phba->vpi_ids);
5572 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5573 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5574 &phba->lpfc_vpi_blk_list, list) {
5575 list_del_init(&rsrc_blk->list);
5578 phba->sli4_hba.max_cfg_param.vpi_used = 0;
5580 case LPFC_RSC_TYPE_FCOE_XRI:
5581 kfree(phba->sli4_hba.xri_bmask);
5582 kfree(phba->sli4_hba.xri_ids);
5583 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5584 &phba->sli4_hba.lpfc_xri_blk_list, list) {
5585 list_del_init(&rsrc_blk->list);
5589 case LPFC_RSC_TYPE_FCOE_VFI:
5590 kfree(phba->sli4_hba.vfi_bmask);
5591 kfree(phba->sli4_hba.vfi_ids);
5592 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5593 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5594 &phba->sli4_hba.lpfc_vfi_blk_list, list) {
5595 list_del_init(&rsrc_blk->list);
5599 case LPFC_RSC_TYPE_FCOE_RPI:
5600 /* RPI bitmask and physical id array are cleaned up earlier. */
5601 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5602 &phba->sli4_hba.lpfc_rpi_blk_list, list) {
5603 list_del_init(&rsrc_blk->list);
5611 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5614 mempool_free(mbox, phba->mbox_mem_pool);
5619 * lpfc_sli4_alloc_resource_identifiers - Allocate all SLI4 resource extents.
5620 * @phba: Pointer to HBA context object.
5622 * This function allocates all SLI4 resource identifiers.
5625 lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba *phba)
5627 int i, rc, error = 0;
5628 uint16_t count, base;
5629 unsigned long longs;
5631 if (!phba->sli4_hba.rpi_hdrs_in_use)
5632 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
5633 if (phba->sli4_hba.extents_in_use) {
5635 * The port supports resource extents. The XRI, VPI, VFI, RPI
5636 * resource extent count must be read and allocated before
5637 * provisioning the resource id arrays.
5639 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
5640 LPFC_IDX_RSRC_RDY) {
5642 * Extent-based resources are set - the driver could
5643 * be in a port reset. Figure out if any corrective
5644 * actions need to be taken.
5646 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5647 LPFC_RSC_TYPE_FCOE_VFI);
5650 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5651 LPFC_RSC_TYPE_FCOE_VPI);
5654 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5655 LPFC_RSC_TYPE_FCOE_XRI);
5658 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5659 LPFC_RSC_TYPE_FCOE_RPI);
5664 * It's possible that the number of resources
5665 * provided to this port instance changed between
5666 * resets. Detect this condition and reallocate
5667 * resources. Otherwise, there is no action.
5670 lpfc_printf_log(phba, KERN_INFO,
5671 LOG_MBOX | LOG_INIT,
5672 "2931 Detected extent resource "
5673 "change. Reallocating all "
5675 rc = lpfc_sli4_dealloc_extent(phba,
5676 LPFC_RSC_TYPE_FCOE_VFI);
5677 rc = lpfc_sli4_dealloc_extent(phba,
5678 LPFC_RSC_TYPE_FCOE_VPI);
5679 rc = lpfc_sli4_dealloc_extent(phba,
5680 LPFC_RSC_TYPE_FCOE_XRI);
5681 rc = lpfc_sli4_dealloc_extent(phba,
5682 LPFC_RSC_TYPE_FCOE_RPI);
5687 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
5691 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
5695 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
5699 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
5702 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
5707 * The port does not support resource extents. The XRI, VPI,
5708 * VFI, RPI resource ids were determined from READ_CONFIG.
5709 * Just allocate the bitmasks and provision the resource id
5710 * arrays. If a port reset is active, the resources don't
5711 * need any action - just exit.
5713 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
5714 LPFC_IDX_RSRC_RDY) {
5715 lpfc_sli4_dealloc_resource_identifiers(phba);
5716 lpfc_sli4_remove_rpis(phba);
5719 count = phba->sli4_hba.max_cfg_param.max_rpi;
5721 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5722 "3279 Invalid provisioning of "
5727 base = phba->sli4_hba.max_cfg_param.rpi_base;
5728 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5729 phba->sli4_hba.rpi_bmask = kzalloc(longs *
5730 sizeof(unsigned long),
5732 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5736 phba->sli4_hba.rpi_ids = kzalloc(count *
5739 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5741 goto free_rpi_bmask;
5744 for (i = 0; i < count; i++)
5745 phba->sli4_hba.rpi_ids[i] = base + i;
5748 count = phba->sli4_hba.max_cfg_param.max_vpi;
5750 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5751 "3280 Invalid provisioning of "
5756 base = phba->sli4_hba.max_cfg_param.vpi_base;
5757 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5758 phba->vpi_bmask = kzalloc(longs *
5759 sizeof(unsigned long),
5761 if (unlikely(!phba->vpi_bmask)) {
5765 phba->vpi_ids = kzalloc(count *
5768 if (unlikely(!phba->vpi_ids)) {
5770 goto free_vpi_bmask;
5773 for (i = 0; i < count; i++)
5774 phba->vpi_ids[i] = base + i;
5777 count = phba->sli4_hba.max_cfg_param.max_xri;
5779 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5780 "3281 Invalid provisioning of "
5785 base = phba->sli4_hba.max_cfg_param.xri_base;
5786 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5787 phba->sli4_hba.xri_bmask = kzalloc(longs *
5788 sizeof(unsigned long),
5790 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5794 phba->sli4_hba.max_cfg_param.xri_used = 0;
5795 phba->sli4_hba.xri_ids = kzalloc(count *
5798 if (unlikely(!phba->sli4_hba.xri_ids)) {
5800 goto free_xri_bmask;
5803 for (i = 0; i < count; i++)
5804 phba->sli4_hba.xri_ids[i] = base + i;
5807 count = phba->sli4_hba.max_cfg_param.max_vfi;
5809 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5810 "3282 Invalid provisioning of "
5815 base = phba->sli4_hba.max_cfg_param.vfi_base;
5816 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5817 phba->sli4_hba.vfi_bmask = kzalloc(longs *
5818 sizeof(unsigned long),
5820 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5824 phba->sli4_hba.vfi_ids = kzalloc(count *
5827 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5829 goto free_vfi_bmask;
5832 for (i = 0; i < count; i++)
5833 phba->sli4_hba.vfi_ids[i] = base + i;
5836 * Mark all resources ready. An HBA reset doesn't need
5837 * to reset the initialization.
5839 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
5845 kfree(phba->sli4_hba.vfi_bmask);
5847 kfree(phba->sli4_hba.xri_ids);
5849 kfree(phba->sli4_hba.xri_bmask);
5851 kfree(phba->vpi_ids);
5853 kfree(phba->vpi_bmask);
5855 kfree(phba->sli4_hba.rpi_ids);
5857 kfree(phba->sli4_hba.rpi_bmask);
5863 * lpfc_sli4_dealloc_resource_identifiers - Deallocate all SLI4 resource extents.
5864 * @phba: Pointer to HBA context object.
5866 * This function allocates the number of elements for the specified
5870 lpfc_sli4_dealloc_resource_identifiers(struct lpfc_hba *phba)
5872 if (phba->sli4_hba.extents_in_use) {
5873 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
5874 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
5875 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
5876 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
5878 kfree(phba->vpi_bmask);
5879 phba->sli4_hba.max_cfg_param.vpi_used = 0;
5880 kfree(phba->vpi_ids);
5881 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5882 kfree(phba->sli4_hba.xri_bmask);
5883 kfree(phba->sli4_hba.xri_ids);
5884 kfree(phba->sli4_hba.vfi_bmask);
5885 kfree(phba->sli4_hba.vfi_ids);
5886 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5887 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5894 * lpfc_sli4_get_allocated_extnts - Get the port's allocated extents.
5895 * @phba: Pointer to HBA context object.
5896 * @type: The resource extent type.
5897 * @extnt_count: buffer to hold port extent count response
5898 * @extnt_size: buffer to hold port extent size response.
5900 * This function calls the port to read the host allocated extents
5901 * for a particular type.
5904 lpfc_sli4_get_allocated_extnts(struct lpfc_hba *phba, uint16_t type,
5905 uint16_t *extnt_cnt, uint16_t *extnt_size)
5909 uint16_t curr_blks = 0;
5910 uint32_t req_len, emb_len;
5911 uint32_t alloc_len, mbox_tmo;
5912 struct list_head *blk_list_head;
5913 struct lpfc_rsrc_blks *rsrc_blk;
5915 void *virtaddr = NULL;
5916 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5917 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5918 union lpfc_sli4_cfg_shdr *shdr;
5921 case LPFC_RSC_TYPE_FCOE_VPI:
5922 blk_list_head = &phba->lpfc_vpi_blk_list;
5924 case LPFC_RSC_TYPE_FCOE_XRI:
5925 blk_list_head = &phba->sli4_hba.lpfc_xri_blk_list;
5927 case LPFC_RSC_TYPE_FCOE_VFI:
5928 blk_list_head = &phba->sli4_hba.lpfc_vfi_blk_list;
5930 case LPFC_RSC_TYPE_FCOE_RPI:
5931 blk_list_head = &phba->sli4_hba.lpfc_rpi_blk_list;
5937 /* Count the number of extents currently allocatd for this type. */
5938 list_for_each_entry(rsrc_blk, blk_list_head, list) {
5939 if (curr_blks == 0) {
5941 * The GET_ALLOCATED mailbox does not return the size,
5942 * just the count. The size should be just the size
5943 * stored in the current allocated block and all sizes
5944 * for an extent type are the same so set the return
5947 *extnt_size = rsrc_blk->rsrc_size;
5953 * Calculate the size of an embedded mailbox. The uint32_t
5954 * accounts for extents-specific word.
5956 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
5960 * Presume the allocation and response will fit into an embedded
5961 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5963 emb = LPFC_SLI4_MBX_EMBED;
5965 if (req_len > emb_len) {
5966 req_len = curr_blks * sizeof(uint16_t) +
5967 sizeof(union lpfc_sli4_cfg_shdr) +
5969 emb = LPFC_SLI4_MBX_NEMBED;
5972 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5975 memset(mbox, 0, sizeof(LPFC_MBOXQ_t));
5977 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5978 LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT,
5980 if (alloc_len < req_len) {
5981 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5982 "2983 Allocated DMA memory size (x%x) is "
5983 "less than the requested DMA memory "
5984 "size (x%x)\n", alloc_len, req_len);
5988 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, curr_blks, type, emb);
5994 if (!phba->sli4_hba.intr_enable)
5995 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5997 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5998 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
6007 * Figure out where the response is located. Then get local pointers
6008 * to the response data. The port does not guarantee to respond to
6009 * all extents counts request so update the local variable with the
6010 * allocated count from the port.
6012 if (emb == LPFC_SLI4_MBX_EMBED) {
6013 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
6014 shdr = &rsrc_ext->header.cfg_shdr;
6015 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
6017 virtaddr = mbox->sge_array->addr[0];
6018 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
6019 shdr = &n_rsrc->cfg_shdr;
6020 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
6023 if (bf_get(lpfc_mbox_hdr_status, &shdr->response)) {
6024 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
6025 "2984 Failed to read allocated resources "
6026 "for type %d - Status 0x%x Add'l Status 0x%x.\n",
6028 bf_get(lpfc_mbox_hdr_status, &shdr->response),
6029 bf_get(lpfc_mbox_hdr_add_status, &shdr->response));
6034 lpfc_sli4_mbox_cmd_free(phba, mbox);
6039 * lpfc_sli4_repost_els_sgl_list - Repsot the els buffers sgl pages as block
6040 * @phba: pointer to lpfc hba data structure.
6042 * This routine walks the list of els buffers that have been allocated and
6043 * repost them to the port by using SGL block post. This is needed after a
6044 * pci_function_reset/warm_start or start. It attempts to construct blocks
6045 * of els buffer sgls which contains contiguous xris and uses the non-embedded
6046 * SGL block post mailbox commands to post them to the port. For single els
6047 * buffer sgl with non-contiguous xri, if any, it shall use embedded SGL post
6048 * mailbox command for posting.
6050 * Returns: 0 = success, non-zero failure.
6053 lpfc_sli4_repost_els_sgl_list(struct lpfc_hba *phba)
6055 struct lpfc_sglq *sglq_entry = NULL;
6056 struct lpfc_sglq *sglq_entry_next = NULL;
6057 struct lpfc_sglq *sglq_entry_first = NULL;
6058 int status, total_cnt, post_cnt = 0, num_posted = 0, block_cnt = 0;
6059 int last_xritag = NO_XRI;
6060 struct lpfc_sli_ring *pring;
6061 LIST_HEAD(prep_sgl_list);
6062 LIST_HEAD(blck_sgl_list);
6063 LIST_HEAD(allc_sgl_list);
6064 LIST_HEAD(post_sgl_list);
6065 LIST_HEAD(free_sgl_list);
6067 pring = &phba->sli.ring[LPFC_ELS_RING];
6068 spin_lock_irq(&phba->hbalock);
6069 spin_lock(&pring->ring_lock);
6070 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &allc_sgl_list);
6071 spin_unlock(&pring->ring_lock);
6072 spin_unlock_irq(&phba->hbalock);
6074 total_cnt = phba->sli4_hba.els_xri_cnt;
6075 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
6076 &allc_sgl_list, list) {
6077 list_del_init(&sglq_entry->list);
6079 if ((last_xritag != NO_XRI) &&
6080 (sglq_entry->sli4_xritag != last_xritag + 1)) {
6081 /* a hole in xri block, form a sgl posting block */
6082 list_splice_init(&prep_sgl_list, &blck_sgl_list);
6083 post_cnt = block_cnt - 1;
6084 /* prepare list for next posting block */
6085 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6088 /* prepare list for next posting block */
6089 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6090 /* enough sgls for non-embed sgl mbox command */
6091 if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
6092 list_splice_init(&prep_sgl_list,
6094 post_cnt = block_cnt;
6100 /* keep track of last sgl's xritag */
6101 last_xritag = sglq_entry->sli4_xritag;
6103 /* end of repost sgl list condition for els buffers */
6104 if (num_posted == phba->sli4_hba.els_xri_cnt) {
6105 if (post_cnt == 0) {
6106 list_splice_init(&prep_sgl_list,
6108 post_cnt = block_cnt;
6109 } else if (block_cnt == 1) {
6110 status = lpfc_sli4_post_sgl(phba,
6111 sglq_entry->phys, 0,
6112 sglq_entry->sli4_xritag);
6114 /* successful, put sgl to posted list */
6115 list_add_tail(&sglq_entry->list,
6118 /* Failure, put sgl to free list */
6119 lpfc_printf_log(phba, KERN_WARNING,
6121 "3159 Failed to post els "
6122 "sgl, xritag:x%x\n",
6123 sglq_entry->sli4_xritag);
6124 list_add_tail(&sglq_entry->list,
6131 /* continue until a nembed page worth of sgls */
6135 /* post the els buffer list sgls as a block */
6136 status = lpfc_sli4_post_els_sgl_list(phba, &blck_sgl_list,
6140 /* success, put sgl list to posted sgl list */
6141 list_splice_init(&blck_sgl_list, &post_sgl_list);
6143 /* Failure, put sgl list to free sgl list */
6144 sglq_entry_first = list_first_entry(&blck_sgl_list,
6147 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6148 "3160 Failed to post els sgl-list, "
6150 sglq_entry_first->sli4_xritag,
6151 (sglq_entry_first->sli4_xritag +
6153 list_splice_init(&blck_sgl_list, &free_sgl_list);
6154 total_cnt -= post_cnt;
6157 /* don't reset xirtag due to hole in xri block */
6159 last_xritag = NO_XRI;
6161 /* reset els sgl post count for next round of posting */
6164 /* update the number of XRIs posted for ELS */
6165 phba->sli4_hba.els_xri_cnt = total_cnt;
6167 /* free the els sgls failed to post */
6168 lpfc_free_sgl_list(phba, &free_sgl_list);
6170 /* push els sgls posted to the availble list */
6171 if (!list_empty(&post_sgl_list)) {
6172 spin_lock_irq(&phba->hbalock);
6173 spin_lock(&pring->ring_lock);
6174 list_splice_init(&post_sgl_list,
6175 &phba->sli4_hba.lpfc_sgl_list);
6176 spin_unlock(&pring->ring_lock);
6177 spin_unlock_irq(&phba->hbalock);
6179 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6180 "3161 Failure to post els sgl to port.\n");
6187 * lpfc_sli4_hba_setup - SLI4 device intialization PCI function
6188 * @phba: Pointer to HBA context object.
6190 * This function is the main SLI4 device intialization PCI function. This
6191 * function is called by the HBA intialization code, HBA reset code and
6192 * HBA error attention handler code. Caller is not required to hold any
6196 lpfc_sli4_hba_setup(struct lpfc_hba *phba)
6199 LPFC_MBOXQ_t *mboxq;
6200 struct lpfc_mqe *mqe;
6203 uint32_t ftr_rsp = 0;
6204 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
6205 struct lpfc_vport *vport = phba->pport;
6206 struct lpfc_dmabuf *mp;
6208 /* Perform a PCI function reset to start from clean */
6209 rc = lpfc_pci_function_reset(phba);
6213 /* Check the HBA Host Status Register for readyness */
6214 rc = lpfc_sli4_post_status_check(phba);
6218 spin_lock_irq(&phba->hbalock);
6219 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
6220 spin_unlock_irq(&phba->hbalock);
6224 * Allocate a single mailbox container for initializing the
6227 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6231 /* Issue READ_REV to collect vpd and FW information. */
6232 vpd_size = SLI4_PAGE_SIZE;
6233 vpd = kzalloc(vpd_size, GFP_KERNEL);
6239 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
6245 mqe = &mboxq->u.mqe;
6246 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
6247 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev))
6248 phba->hba_flag |= HBA_FCOE_MODE;
6250 phba->hba_flag &= ~HBA_FCOE_MODE;
6252 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
6254 phba->hba_flag |= HBA_FIP_SUPPORT;
6256 phba->hba_flag &= ~HBA_FIP_SUPPORT;
6258 phba->hba_flag &= ~HBA_FCP_IOQ_FLUSH;
6260 if (phba->sli_rev != LPFC_SLI_REV4) {
6261 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6262 "0376 READ_REV Error. SLI Level %d "
6263 "FCoE enabled %d\n",
6264 phba->sli_rev, phba->hba_flag & HBA_FCOE_MODE);
6271 * Continue initialization with default values even if driver failed
6272 * to read FCoE param config regions, only read parameters if the
6275 if (phba->hba_flag & HBA_FCOE_MODE &&
6276 lpfc_sli4_read_fcoe_params(phba))
6277 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_INIT,
6278 "2570 Failed to read FCoE parameters\n");
6281 * Retrieve sli4 device physical port name, failure of doing it
6282 * is considered as non-fatal.
6284 rc = lpfc_sli4_retrieve_pport_name(phba);
6286 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6287 "3080 Successful retrieving SLI4 device "
6288 "physical port name: %s.\n", phba->Port);
6291 * Evaluate the read rev and vpd data. Populate the driver
6292 * state with the results. If this routine fails, the failure
6293 * is not fatal as the driver will use generic values.
6295 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
6296 if (unlikely(!rc)) {
6297 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6298 "0377 Error %d parsing vpd. "
6299 "Using defaults.\n", rc);
6304 /* Save information as VPD data */
6305 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
6306 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
6307 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
6308 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
6310 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
6312 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
6314 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
6316 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
6317 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
6318 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
6319 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
6320 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
6321 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
6322 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6323 "(%d):0380 READ_REV Status x%x "
6324 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
6325 mboxq->vport ? mboxq->vport->vpi : 0,
6326 bf_get(lpfc_mqe_status, mqe),
6327 phba->vpd.rev.opFwName,
6328 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
6329 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
6331 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */
6332 rc = (phba->sli4_hba.max_cfg_param.max_xri >> 3);
6333 if (phba->pport->cfg_lun_queue_depth > rc) {
6334 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6335 "3362 LUN queue depth changed from %d to %d\n",
6336 phba->pport->cfg_lun_queue_depth, rc);
6337 phba->pport->cfg_lun_queue_depth = rc;
6342 * Discover the port's supported feature set and match it against the
6345 lpfc_request_features(phba, mboxq);
6346 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6353 * The port must support FCP initiator mode as this is the
6354 * only mode running in the host.
6356 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
6357 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6358 "0378 No support for fcpi mode.\n");
6361 if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh, &mqe->un.req_ftrs))
6362 phba->sli3_options |= LPFC_SLI4_PERFH_ENABLED;
6364 phba->sli3_options &= ~LPFC_SLI4_PERFH_ENABLED;
6366 * If the port cannot support the host's requested features
6367 * then turn off the global config parameters to disable the
6368 * feature in the driver. This is not a fatal error.
6370 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
6371 if (phba->cfg_enable_bg) {
6372 if (bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))
6373 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
6378 if (phba->max_vpi && phba->cfg_enable_npiv &&
6379 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6383 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6384 "0379 Feature Mismatch Data: x%08x %08x "
6385 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
6386 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
6387 phba->cfg_enable_npiv, phba->max_vpi);
6388 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
6389 phba->cfg_enable_bg = 0;
6390 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6391 phba->cfg_enable_npiv = 0;
6394 /* These SLI3 features are assumed in SLI4 */
6395 spin_lock_irq(&phba->hbalock);
6396 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
6397 spin_unlock_irq(&phba->hbalock);
6400 * Allocate all resources (xri,rpi,vpi,vfi) now. Subsequent
6401 * calls depends on these resources to complete port setup.
6403 rc = lpfc_sli4_alloc_resource_identifiers(phba);
6405 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6406 "2920 Failed to alloc Resource IDs "
6411 /* Read the port's service parameters. */
6412 rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
6414 phba->link_state = LPFC_HBA_ERROR;
6419 mboxq->vport = vport;
6420 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6421 mp = (struct lpfc_dmabuf *) mboxq->context1;
6422 if (rc == MBX_SUCCESS) {
6423 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
6428 * This memory was allocated by the lpfc_read_sparam routine. Release
6429 * it to the mbuf pool.
6431 lpfc_mbuf_free(phba, mp->virt, mp->phys);
6433 mboxq->context1 = NULL;
6435 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6436 "0382 READ_SPARAM command failed "
6437 "status %d, mbxStatus x%x\n",
6438 rc, bf_get(lpfc_mqe_status, mqe));
6439 phba->link_state = LPFC_HBA_ERROR;
6444 lpfc_update_vport_wwn(vport);
6446 /* Update the fc_host data structures with new wwn. */
6447 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
6448 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
6450 /* update host els and scsi xri-sgl sizes and mappings */
6451 rc = lpfc_sli4_xri_sgl_update(phba);
6453 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6454 "1400 Failed to update xri-sgl size and "
6455 "mapping: %d\n", rc);
6459 /* register the els sgl pool to the port */
6460 rc = lpfc_sli4_repost_els_sgl_list(phba);
6462 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6463 "0582 Error %d during els sgl post "
6469 /* register the allocated scsi sgl pool to the port */
6470 rc = lpfc_sli4_repost_scsi_sgl_list(phba);
6472 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6473 "0383 Error %d during scsi sgl post "
6475 /* Some Scsi buffers were moved to the abort scsi list */
6476 /* A pci function reset will repost them */
6481 /* Post the rpi header region to the device. */
6482 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
6484 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6485 "0393 Error %d during rpi post operation\n",
6490 lpfc_sli4_node_prep(phba);
6492 /* Create all the SLI4 queues */
6493 rc = lpfc_sli4_queue_create(phba);
6495 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6496 "3089 Failed to allocate queues\n");
6498 goto out_stop_timers;
6500 /* Set up all the queues to the device */
6501 rc = lpfc_sli4_queue_setup(phba);
6503 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6504 "0381 Error %d during queue setup.\n ", rc);
6505 goto out_destroy_queue;
6508 /* Arm the CQs and then EQs on device */
6509 lpfc_sli4_arm_cqeq_intr(phba);
6511 /* Indicate device interrupt mode */
6512 phba->sli4_hba.intr_enable = 1;
6514 /* Allow asynchronous mailbox command to go through */
6515 spin_lock_irq(&phba->hbalock);
6516 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
6517 spin_unlock_irq(&phba->hbalock);
6519 /* Post receive buffers to the device */
6520 lpfc_sli4_rb_setup(phba);
6522 /* Reset HBA FCF states after HBA reset */
6523 phba->fcf.fcf_flag = 0;
6524 phba->fcf.current_rec.flag = 0;
6526 /* Start the ELS watchdog timer */
6527 mod_timer(&vport->els_tmofunc,
6528 jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov * 2)));
6530 /* Start heart beat timer */
6531 mod_timer(&phba->hb_tmofunc,
6532 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
6533 phba->hb_outstanding = 0;
6534 phba->last_completion_time = jiffies;
6536 /* Start error attention (ERATT) polling timer */
6537 mod_timer(&phba->eratt_poll,
6538 jiffies + msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
6540 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
6541 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
6542 rc = pci_enable_pcie_error_reporting(phba->pcidev);
6544 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6545 "2829 This device supports "
6546 "Advanced Error Reporting (AER)\n");
6547 spin_lock_irq(&phba->hbalock);
6548 phba->hba_flag |= HBA_AER_ENABLED;
6549 spin_unlock_irq(&phba->hbalock);
6551 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6552 "2830 This device does not support "
6553 "Advanced Error Reporting (AER)\n");
6554 phba->cfg_aer_support = 0;
6559 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
6561 * The FC Port needs to register FCFI (index 0)
6563 lpfc_reg_fcfi(phba, mboxq);
6564 mboxq->vport = phba->pport;
6565 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6566 if (rc != MBX_SUCCESS)
6567 goto out_unset_queue;
6569 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi,
6570 &mboxq->u.mqe.un.reg_fcfi);
6572 /* Check if the port is configured to be disabled */
6573 lpfc_sli_read_link_ste(phba);
6577 * The port is ready, set the host's link state to LINK_DOWN
6578 * in preparation for link interrupts.
6580 spin_lock_irq(&phba->hbalock);
6581 phba->link_state = LPFC_LINK_DOWN;
6582 spin_unlock_irq(&phba->hbalock);
6583 if (!(phba->hba_flag & HBA_FCOE_MODE) &&
6584 (phba->hba_flag & LINK_DISABLED)) {
6585 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
6586 "3103 Adapter Link is disabled.\n");
6587 lpfc_down_link(phba, mboxq);
6588 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6589 if (rc != MBX_SUCCESS) {
6590 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
6591 "3104 Adapter failed to issue "
6592 "DOWN_LINK mbox cmd, rc:x%x\n", rc);
6593 goto out_unset_queue;
6595 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
6596 /* don't perform init_link on SLI4 FC port loopback test */
6597 if (!(phba->link_flag & LS_LOOPBACK_MODE)) {
6598 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
6600 goto out_unset_queue;
6603 mempool_free(mboxq, phba->mbox_mem_pool);
6606 /* Unset all the queues set up in this routine when error out */
6607 lpfc_sli4_queue_unset(phba);
6609 lpfc_sli4_queue_destroy(phba);
6611 lpfc_stop_hba_timers(phba);
6613 mempool_free(mboxq, phba->mbox_mem_pool);
6618 * lpfc_mbox_timeout - Timeout call back function for mbox timer
6619 * @ptr: context object - pointer to hba structure.
6621 * This is the callback function for mailbox timer. The mailbox
6622 * timer is armed when a new mailbox command is issued and the timer
6623 * is deleted when the mailbox complete. The function is called by
6624 * the kernel timer code when a mailbox does not complete within
6625 * expected time. This function wakes up the worker thread to
6626 * process the mailbox timeout and returns. All the processing is
6627 * done by the worker thread function lpfc_mbox_timeout_handler.
6630 lpfc_mbox_timeout(unsigned long ptr)
6632 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
6633 unsigned long iflag;
6634 uint32_t tmo_posted;
6636 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
6637 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
6639 phba->pport->work_port_events |= WORKER_MBOX_TMO;
6640 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
6643 lpfc_worker_wake_up(phba);
6648 * lpfc_sli4_mbox_completions_pending - check to see if any mailbox completions
6650 * @phba: Pointer to HBA context object.
6652 * This function checks if any mailbox completions are present on the mailbox
6656 lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba)
6660 struct lpfc_queue *mcq;
6661 struct lpfc_mcqe *mcqe;
6662 bool pending_completions = false;
6664 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
6667 /* Check for completions on mailbox completion queue */
6669 mcq = phba->sli4_hba.mbx_cq;
6670 idx = mcq->hba_index;
6671 while (bf_get_le32(lpfc_cqe_valid, mcq->qe[idx].cqe)) {
6672 mcqe = (struct lpfc_mcqe *)mcq->qe[idx].cqe;
6673 if (bf_get_le32(lpfc_trailer_completed, mcqe) &&
6674 (!bf_get_le32(lpfc_trailer_async, mcqe))) {
6675 pending_completions = true;
6678 idx = (idx + 1) % mcq->entry_count;
6679 if (mcq->hba_index == idx)
6682 return pending_completions;
6687 * lpfc_sli4_process_missed_mbox_completions - process mbox completions
6689 * @phba: Pointer to HBA context object.
6691 * For sli4, it is possible to miss an interrupt. As such mbox completions
6692 * maybe missed causing erroneous mailbox timeouts to occur. This function
6693 * checks to see if mbox completions are on the mailbox completion queue
6694 * and will process all the completions associated with the eq for the
6695 * mailbox completion queue.
6698 lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba)
6702 struct lpfc_queue *fpeq = NULL;
6703 struct lpfc_eqe *eqe;
6706 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
6709 /* Find the eq associated with the mcq */
6711 if (phba->sli4_hba.hba_eq)
6712 for (eqidx = 0; eqidx < phba->cfg_fcp_io_channel; eqidx++)
6713 if (phba->sli4_hba.hba_eq[eqidx]->queue_id ==
6714 phba->sli4_hba.mbx_cq->assoc_qid) {
6715 fpeq = phba->sli4_hba.hba_eq[eqidx];
6721 /* Turn off interrupts from this EQ */
6723 lpfc_sli4_eq_clr_intr(fpeq);
6725 /* Check to see if a mbox completion is pending */
6727 mbox_pending = lpfc_sli4_mbox_completions_pending(phba);
6730 * If a mbox completion is pending, process all the events on EQ
6731 * associated with the mbox completion queue (this could include
6732 * mailbox commands, async events, els commands, receive queue data
6737 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
6738 lpfc_sli4_hba_handle_eqe(phba, eqe, eqidx);
6739 fpeq->EQ_processed++;
6742 /* Always clear and re-arm the EQ */
6744 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
6746 return mbox_pending;
6751 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
6752 * @phba: Pointer to HBA context object.
6754 * This function is called from worker thread when a mailbox command times out.
6755 * The caller is not required to hold any locks. This function will reset the
6756 * HBA and recover all the pending commands.
6759 lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
6761 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
6762 MAILBOX_t *mb = NULL;
6764 struct lpfc_sli *psli = &phba->sli;
6766 /* If the mailbox completed, process the completion and return */
6767 if (lpfc_sli4_process_missed_mbox_completions(phba))
6772 /* Check the pmbox pointer first. There is a race condition
6773 * between the mbox timeout handler getting executed in the
6774 * worklist and the mailbox actually completing. When this
6775 * race condition occurs, the mbox_active will be NULL.
6777 spin_lock_irq(&phba->hbalock);
6778 if (pmbox == NULL) {
6779 lpfc_printf_log(phba, KERN_WARNING,
6781 "0353 Active Mailbox cleared - mailbox timeout "
6783 spin_unlock_irq(&phba->hbalock);
6787 /* Mbox cmd <mbxCommand> timeout */
6788 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6789 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
6791 phba->pport->port_state,
6793 phba->sli.mbox_active);
6794 spin_unlock_irq(&phba->hbalock);
6796 /* Setting state unknown so lpfc_sli_abort_iocb_ring
6797 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
6798 * it to fail all outstanding SCSI IO.
6800 spin_lock_irq(&phba->pport->work_port_lock);
6801 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
6802 spin_unlock_irq(&phba->pport->work_port_lock);
6803 spin_lock_irq(&phba->hbalock);
6804 phba->link_state = LPFC_LINK_UNKNOWN;
6805 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
6806 spin_unlock_irq(&phba->hbalock);
6808 lpfc_sli_abort_fcp_rings(phba);
6810 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6811 "0345 Resetting board due to mailbox timeout\n");
6813 /* Reset the HBA device */
6814 lpfc_reset_hba(phba);
6818 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
6819 * @phba: Pointer to HBA context object.
6820 * @pmbox: Pointer to mailbox object.
6821 * @flag: Flag indicating how the mailbox need to be processed.
6823 * This function is called by discovery code and HBA management code
6824 * to submit a mailbox command to firmware with SLI-3 interface spec. This
6825 * function gets the hbalock to protect the data structures.
6826 * The mailbox command can be submitted in polling mode, in which case
6827 * this function will wait in a polling loop for the completion of the
6829 * If the mailbox is submitted in no_wait mode (not polling) the
6830 * function will submit the command and returns immediately without waiting
6831 * for the mailbox completion. The no_wait is supported only when HBA
6832 * is in SLI2/SLI3 mode - interrupts are enabled.
6833 * The SLI interface allows only one mailbox pending at a time. If the
6834 * mailbox is issued in polling mode and there is already a mailbox
6835 * pending, then the function will return an error. If the mailbox is issued
6836 * in NO_WAIT mode and there is a mailbox pending already, the function
6837 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
6838 * The sli layer owns the mailbox object until the completion of mailbox
6839 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
6840 * return codes the caller owns the mailbox command after the return of
6844 lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
6848 struct lpfc_sli *psli = &phba->sli;
6849 uint32_t status, evtctr;
6850 uint32_t ha_copy, hc_copy;
6852 unsigned long timeout;
6853 unsigned long drvr_flag = 0;
6854 uint32_t word0, ldata;
6855 void __iomem *to_slim;
6856 int processing_queue = 0;
6858 spin_lock_irqsave(&phba->hbalock, drvr_flag);
6860 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6861 /* processing mbox queue from intr_handler */
6862 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
6863 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6866 processing_queue = 1;
6867 pmbox = lpfc_mbox_get(phba);
6869 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6874 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
6875 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
6877 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6878 lpfc_printf_log(phba, KERN_ERR,
6879 LOG_MBOX | LOG_VPORT,
6880 "1806 Mbox x%x failed. No vport\n",
6881 pmbox->u.mb.mbxCommand);
6883 goto out_not_finished;
6887 /* If the PCI channel is in offline state, do not post mbox. */
6888 if (unlikely(pci_channel_offline(phba->pcidev))) {
6889 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6890 goto out_not_finished;
6893 /* If HBA has a deferred error attention, fail the iocb. */
6894 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
6895 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6896 goto out_not_finished;
6902 status = MBX_SUCCESS;
6904 if (phba->link_state == LPFC_HBA_ERROR) {
6905 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6907 /* Mbox command <mbxCommand> cannot issue */
6908 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6909 "(%d):0311 Mailbox command x%x cannot "
6910 "issue Data: x%x x%x\n",
6911 pmbox->vport ? pmbox->vport->vpi : 0,
6912 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
6913 goto out_not_finished;
6916 if (mbx->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT) {
6917 if (lpfc_readl(phba->HCregaddr, &hc_copy) ||
6918 !(hc_copy & HC_MBINT_ENA)) {
6919 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6920 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6921 "(%d):2528 Mailbox command x%x cannot "
6922 "issue Data: x%x x%x\n",
6923 pmbox->vport ? pmbox->vport->vpi : 0,
6924 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
6925 goto out_not_finished;
6929 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
6930 /* Polling for a mbox command when another one is already active
6931 * is not allowed in SLI. Also, the driver must have established
6932 * SLI2 mode to queue and process multiple mbox commands.
6935 if (flag & MBX_POLL) {
6936 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6938 /* Mbox command <mbxCommand> cannot issue */
6939 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6940 "(%d):2529 Mailbox command x%x "
6941 "cannot issue Data: x%x x%x\n",
6942 pmbox->vport ? pmbox->vport->vpi : 0,
6943 pmbox->u.mb.mbxCommand,
6944 psli->sli_flag, flag);
6945 goto out_not_finished;
6948 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
6949 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6950 /* Mbox command <mbxCommand> cannot issue */
6951 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6952 "(%d):2530 Mailbox command x%x "
6953 "cannot issue Data: x%x x%x\n",
6954 pmbox->vport ? pmbox->vport->vpi : 0,
6955 pmbox->u.mb.mbxCommand,
6956 psli->sli_flag, flag);
6957 goto out_not_finished;
6960 /* Another mailbox command is still being processed, queue this
6961 * command to be processed later.
6963 lpfc_mbox_put(phba, pmbox);
6965 /* Mbox cmd issue - BUSY */
6966 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6967 "(%d):0308 Mbox cmd issue - BUSY Data: "
6968 "x%x x%x x%x x%x\n",
6969 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
6970 mbx->mbxCommand, phba->pport->port_state,
6971 psli->sli_flag, flag);
6973 psli->slistat.mbox_busy++;
6974 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6977 lpfc_debugfs_disc_trc(pmbox->vport,
6978 LPFC_DISC_TRC_MBOX_VPORT,
6979 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
6980 (uint32_t)mbx->mbxCommand,
6981 mbx->un.varWords[0], mbx->un.varWords[1]);
6984 lpfc_debugfs_disc_trc(phba->pport,
6986 "MBOX Bsy: cmd:x%x mb:x%x x%x",
6987 (uint32_t)mbx->mbxCommand,
6988 mbx->un.varWords[0], mbx->un.varWords[1]);
6994 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
6996 /* If we are not polling, we MUST be in SLI2 mode */
6997 if (flag != MBX_POLL) {
6998 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
6999 (mbx->mbxCommand != MBX_KILL_BOARD)) {
7000 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7001 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7002 /* Mbox command <mbxCommand> cannot issue */
7003 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7004 "(%d):2531 Mailbox command x%x "
7005 "cannot issue Data: x%x x%x\n",
7006 pmbox->vport ? pmbox->vport->vpi : 0,
7007 pmbox->u.mb.mbxCommand,
7008 psli->sli_flag, flag);
7009 goto out_not_finished;
7011 /* timeout active mbox command */
7012 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
7014 mod_timer(&psli->mbox_tmo, jiffies + timeout);
7017 /* Mailbox cmd <cmd> issue */
7018 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7019 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
7021 pmbox->vport ? pmbox->vport->vpi : 0,
7022 mbx->mbxCommand, phba->pport->port_state,
7023 psli->sli_flag, flag);
7025 if (mbx->mbxCommand != MBX_HEARTBEAT) {
7027 lpfc_debugfs_disc_trc(pmbox->vport,
7028 LPFC_DISC_TRC_MBOX_VPORT,
7029 "MBOX Send vport: cmd:x%x mb:x%x x%x",
7030 (uint32_t)mbx->mbxCommand,
7031 mbx->un.varWords[0], mbx->un.varWords[1]);
7034 lpfc_debugfs_disc_trc(phba->pport,
7036 "MBOX Send: cmd:x%x mb:x%x x%x",
7037 (uint32_t)mbx->mbxCommand,
7038 mbx->un.varWords[0], mbx->un.varWords[1]);
7042 psli->slistat.mbox_cmd++;
7043 evtctr = psli->slistat.mbox_event;
7045 /* next set own bit for the adapter and copy over command word */
7046 mbx->mbxOwner = OWN_CHIP;
7048 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7049 /* Populate mbox extension offset word. */
7050 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) {
7051 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
7052 = (uint8_t *)phba->mbox_ext
7053 - (uint8_t *)phba->mbox;
7056 /* Copy the mailbox extension data */
7057 if (pmbox->in_ext_byte_len && pmbox->context2) {
7058 lpfc_sli_pcimem_bcopy(pmbox->context2,
7059 (uint8_t *)phba->mbox_ext,
7060 pmbox->in_ext_byte_len);
7062 /* Copy command data to host SLIM area */
7063 lpfc_sli_pcimem_bcopy(mbx, phba->mbox, MAILBOX_CMD_SIZE);
7065 /* Populate mbox extension offset word. */
7066 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len)
7067 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
7068 = MAILBOX_HBA_EXT_OFFSET;
7070 /* Copy the mailbox extension data */
7071 if (pmbox->in_ext_byte_len && pmbox->context2) {
7072 lpfc_memcpy_to_slim(phba->MBslimaddr +
7073 MAILBOX_HBA_EXT_OFFSET,
7074 pmbox->context2, pmbox->in_ext_byte_len);
7077 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
7078 /* copy command data into host mbox for cmpl */
7079 lpfc_sli_pcimem_bcopy(mbx, phba->mbox, MAILBOX_CMD_SIZE);
7082 /* First copy mbox command data to HBA SLIM, skip past first
7084 to_slim = phba->MBslimaddr + sizeof (uint32_t);
7085 lpfc_memcpy_to_slim(to_slim, &mbx->un.varWords[0],
7086 MAILBOX_CMD_SIZE - sizeof (uint32_t));
7088 /* Next copy over first word, with mbxOwner set */
7089 ldata = *((uint32_t *)mbx);
7090 to_slim = phba->MBslimaddr;
7091 writel(ldata, to_slim);
7092 readl(to_slim); /* flush */
7094 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
7095 /* switch over to host mailbox */
7096 psli->sli_flag |= LPFC_SLI_ACTIVE;
7104 /* Set up reference to mailbox command */
7105 psli->mbox_active = pmbox;
7106 /* Interrupt board to do it */
7107 writel(CA_MBATT, phba->CAregaddr);
7108 readl(phba->CAregaddr); /* flush */
7109 /* Don't wait for it to finish, just return */
7113 /* Set up null reference to mailbox command */
7114 psli->mbox_active = NULL;
7115 /* Interrupt board to do it */
7116 writel(CA_MBATT, phba->CAregaddr);
7117 readl(phba->CAregaddr); /* flush */
7119 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7120 /* First read mbox status word */
7121 word0 = *((uint32_t *)phba->mbox);
7122 word0 = le32_to_cpu(word0);
7124 /* First read mbox status word */
7125 if (lpfc_readl(phba->MBslimaddr, &word0)) {
7126 spin_unlock_irqrestore(&phba->hbalock,
7128 goto out_not_finished;
7132 /* Read the HBA Host Attention Register */
7133 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
7134 spin_unlock_irqrestore(&phba->hbalock,
7136 goto out_not_finished;
7138 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
7141 /* Wait for command to complete */
7142 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
7143 (!(ha_copy & HA_MBATT) &&
7144 (phba->link_state > LPFC_WARM_START))) {
7145 if (time_after(jiffies, timeout)) {
7146 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7147 spin_unlock_irqrestore(&phba->hbalock,
7149 goto out_not_finished;
7152 /* Check if we took a mbox interrupt while we were
7154 if (((word0 & OWN_CHIP) != OWN_CHIP)
7155 && (evtctr != psli->slistat.mbox_event))
7159 spin_unlock_irqrestore(&phba->hbalock,
7162 spin_lock_irqsave(&phba->hbalock, drvr_flag);
7165 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7166 /* First copy command data */
7167 word0 = *((uint32_t *)phba->mbox);
7168 word0 = le32_to_cpu(word0);
7169 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
7172 /* Check real SLIM for any errors */
7173 slimword0 = readl(phba->MBslimaddr);
7174 slimmb = (MAILBOX_t *) & slimword0;
7175 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
7176 && slimmb->mbxStatus) {
7183 /* First copy command data */
7184 word0 = readl(phba->MBslimaddr);
7186 /* Read the HBA Host Attention Register */
7187 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
7188 spin_unlock_irqrestore(&phba->hbalock,
7190 goto out_not_finished;
7194 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7195 /* copy results back to user */
7196 lpfc_sli_pcimem_bcopy(phba->mbox, mbx, MAILBOX_CMD_SIZE);
7197 /* Copy the mailbox extension data */
7198 if (pmbox->out_ext_byte_len && pmbox->context2) {
7199 lpfc_sli_pcimem_bcopy(phba->mbox_ext,
7201 pmbox->out_ext_byte_len);
7204 /* First copy command data */
7205 lpfc_memcpy_from_slim(mbx, phba->MBslimaddr,
7207 /* Copy the mailbox extension data */
7208 if (pmbox->out_ext_byte_len && pmbox->context2) {
7209 lpfc_memcpy_from_slim(pmbox->context2,
7211 MAILBOX_HBA_EXT_OFFSET,
7212 pmbox->out_ext_byte_len);
7216 writel(HA_MBATT, phba->HAregaddr);
7217 readl(phba->HAregaddr); /* flush */
7219 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7220 status = mbx->mbxStatus;
7223 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7227 if (processing_queue) {
7228 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
7229 lpfc_mbox_cmpl_put(phba, pmbox);
7231 return MBX_NOT_FINISHED;
7235 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
7236 * @phba: Pointer to HBA context object.
7238 * The function blocks the posting of SLI4 asynchronous mailbox commands from
7239 * the driver internal pending mailbox queue. It will then try to wait out the
7240 * possible outstanding mailbox command before return.
7243 * 0 - the outstanding mailbox command completed; otherwise, the wait for
7244 * the outstanding mailbox command timed out.
7247 lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
7249 struct lpfc_sli *psli = &phba->sli;
7251 unsigned long timeout = 0;
7253 /* Mark the asynchronous mailbox command posting as blocked */
7254 spin_lock_irq(&phba->hbalock);
7255 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
7256 /* Determine how long we might wait for the active mailbox
7257 * command to be gracefully completed by firmware.
7259 if (phba->sli.mbox_active)
7260 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
7261 phba->sli.mbox_active) *
7263 spin_unlock_irq(&phba->hbalock);
7265 /* Make sure the mailbox is really active */
7267 lpfc_sli4_process_missed_mbox_completions(phba);
7269 /* Wait for the outstnading mailbox command to complete */
7270 while (phba->sli.mbox_active) {
7271 /* Check active mailbox complete status every 2ms */
7273 if (time_after(jiffies, timeout)) {
7274 /* Timeout, marked the outstanding cmd not complete */
7280 /* Can not cleanly block async mailbox command, fails it */
7282 spin_lock_irq(&phba->hbalock);
7283 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7284 spin_unlock_irq(&phba->hbalock);
7290 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
7291 * @phba: Pointer to HBA context object.
7293 * The function unblocks and resume posting of SLI4 asynchronous mailbox
7294 * commands from the driver internal pending mailbox queue. It makes sure
7295 * that there is no outstanding mailbox command before resuming posting
7296 * asynchronous mailbox commands. If, for any reason, there is outstanding
7297 * mailbox command, it will try to wait it out before resuming asynchronous
7298 * mailbox command posting.
7301 lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
7303 struct lpfc_sli *psli = &phba->sli;
7305 spin_lock_irq(&phba->hbalock);
7306 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7307 /* Asynchronous mailbox posting is not blocked, do nothing */
7308 spin_unlock_irq(&phba->hbalock);
7312 /* Outstanding synchronous mailbox command is guaranteed to be done,
7313 * successful or timeout, after timing-out the outstanding mailbox
7314 * command shall always be removed, so just unblock posting async
7315 * mailbox command and resume
7317 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7318 spin_unlock_irq(&phba->hbalock);
7320 /* wake up worker thread to post asynchronlous mailbox command */
7321 lpfc_worker_wake_up(phba);
7325 * lpfc_sli4_wait_bmbx_ready - Wait for bootstrap mailbox register ready
7326 * @phba: Pointer to HBA context object.
7327 * @mboxq: Pointer to mailbox object.
7329 * The function waits for the bootstrap mailbox register ready bit from
7330 * port for twice the regular mailbox command timeout value.
7332 * 0 - no timeout on waiting for bootstrap mailbox register ready.
7333 * MBXERR_ERROR - wait for bootstrap mailbox register timed out.
7336 lpfc_sli4_wait_bmbx_ready(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7339 unsigned long timeout;
7340 struct lpfc_register bmbx_reg;
7342 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mboxq)
7346 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
7347 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
7351 if (time_after(jiffies, timeout))
7352 return MBXERR_ERROR;
7353 } while (!db_ready);
7359 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
7360 * @phba: Pointer to HBA context object.
7361 * @mboxq: Pointer to mailbox object.
7363 * The function posts a mailbox to the port. The mailbox is expected
7364 * to be comletely filled in and ready for the port to operate on it.
7365 * This routine executes a synchronous completion operation on the
7366 * mailbox by polling for its completion.
7368 * The caller must not be holding any locks when calling this routine.
7371 * MBX_SUCCESS - mailbox posted successfully
7372 * Any of the MBX error values.
7375 lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7377 int rc = MBX_SUCCESS;
7378 unsigned long iflag;
7379 uint32_t mcqe_status;
7381 struct lpfc_sli *psli = &phba->sli;
7382 struct lpfc_mqe *mb = &mboxq->u.mqe;
7383 struct lpfc_bmbx_create *mbox_rgn;
7384 struct dma_address *dma_address;
7387 * Only one mailbox can be active to the bootstrap mailbox region
7388 * at a time and there is no queueing provided.
7390 spin_lock_irqsave(&phba->hbalock, iflag);
7391 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7392 spin_unlock_irqrestore(&phba->hbalock, iflag);
7393 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7394 "(%d):2532 Mailbox command x%x (x%x/x%x) "
7395 "cannot issue Data: x%x x%x\n",
7396 mboxq->vport ? mboxq->vport->vpi : 0,
7397 mboxq->u.mb.mbxCommand,
7398 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7399 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7400 psli->sli_flag, MBX_POLL);
7401 return MBXERR_ERROR;
7403 /* The server grabs the token and owns it until release */
7404 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7405 phba->sli.mbox_active = mboxq;
7406 spin_unlock_irqrestore(&phba->hbalock, iflag);
7408 /* wait for bootstrap mbox register for readyness */
7409 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7414 * Initialize the bootstrap memory region to avoid stale data areas
7415 * in the mailbox post. Then copy the caller's mailbox contents to
7416 * the bmbx mailbox region.
7418 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
7419 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
7420 lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
7421 sizeof(struct lpfc_mqe));
7423 /* Post the high mailbox dma address to the port and wait for ready. */
7424 dma_address = &phba->sli4_hba.bmbx.dma_address;
7425 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
7427 /* wait for bootstrap mbox register for hi-address write done */
7428 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7432 /* Post the low mailbox dma address to the port. */
7433 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
7435 /* wait for bootstrap mbox register for low address write done */
7436 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7441 * Read the CQ to ensure the mailbox has completed.
7442 * If so, update the mailbox status so that the upper layers
7443 * can complete the request normally.
7445 lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
7446 sizeof(struct lpfc_mqe));
7447 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
7448 lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
7449 sizeof(struct lpfc_mcqe));
7450 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
7452 * When the CQE status indicates a failure and the mailbox status
7453 * indicates success then copy the CQE status into the mailbox status
7454 * (and prefix it with x4000).
7456 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
7457 if (bf_get(lpfc_mqe_status, mb) == MBX_SUCCESS)
7458 bf_set(lpfc_mqe_status, mb,
7459 (LPFC_MBX_ERROR_RANGE | mcqe_status));
7462 lpfc_sli4_swap_str(phba, mboxq);
7464 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7465 "(%d):0356 Mailbox cmd x%x (x%x/x%x) Status x%x "
7466 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
7467 " x%x x%x CQ: x%x x%x x%x x%x\n",
7468 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
7469 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7470 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7471 bf_get(lpfc_mqe_status, mb),
7472 mb->un.mb_words[0], mb->un.mb_words[1],
7473 mb->un.mb_words[2], mb->un.mb_words[3],
7474 mb->un.mb_words[4], mb->un.mb_words[5],
7475 mb->un.mb_words[6], mb->un.mb_words[7],
7476 mb->un.mb_words[8], mb->un.mb_words[9],
7477 mb->un.mb_words[10], mb->un.mb_words[11],
7478 mb->un.mb_words[12], mboxq->mcqe.word0,
7479 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
7480 mboxq->mcqe.trailer);
7482 /* We are holding the token, no needed for lock when release */
7483 spin_lock_irqsave(&phba->hbalock, iflag);
7484 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7485 phba->sli.mbox_active = NULL;
7486 spin_unlock_irqrestore(&phba->hbalock, iflag);
7491 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
7492 * @phba: Pointer to HBA context object.
7493 * @pmbox: Pointer to mailbox object.
7494 * @flag: Flag indicating how the mailbox need to be processed.
7496 * This function is called by discovery code and HBA management code to submit
7497 * a mailbox command to firmware with SLI-4 interface spec.
7499 * Return codes the caller owns the mailbox command after the return of the
7503 lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
7506 struct lpfc_sli *psli = &phba->sli;
7507 unsigned long iflags;
7510 /* dump from issue mailbox command if setup */
7511 lpfc_idiag_mbxacc_dump_issue_mbox(phba, &mboxq->u.mb);
7513 rc = lpfc_mbox_dev_check(phba);
7515 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7516 "(%d):2544 Mailbox command x%x (x%x/x%x) "
7517 "cannot issue Data: x%x x%x\n",
7518 mboxq->vport ? mboxq->vport->vpi : 0,
7519 mboxq->u.mb.mbxCommand,
7520 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7521 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7522 psli->sli_flag, flag);
7523 goto out_not_finished;
7526 /* Detect polling mode and jump to a handler */
7527 if (!phba->sli4_hba.intr_enable) {
7528 if (flag == MBX_POLL)
7529 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
7532 if (rc != MBX_SUCCESS)
7533 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7534 "(%d):2541 Mailbox command x%x "
7535 "(x%x/x%x) failure: "
7536 "mqe_sta: x%x mcqe_sta: x%x/x%x "
7538 mboxq->vport ? mboxq->vport->vpi : 0,
7539 mboxq->u.mb.mbxCommand,
7540 lpfc_sli_config_mbox_subsys_get(phba,
7542 lpfc_sli_config_mbox_opcode_get(phba,
7544 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
7545 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
7546 bf_get(lpfc_mcqe_ext_status,
7548 psli->sli_flag, flag);
7550 } else if (flag == MBX_POLL) {
7551 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7552 "(%d):2542 Try to issue mailbox command "
7553 "x%x (x%x/x%x) synchronously ahead of async"
7554 "mailbox command queue: x%x x%x\n",
7555 mboxq->vport ? mboxq->vport->vpi : 0,
7556 mboxq->u.mb.mbxCommand,
7557 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7558 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7559 psli->sli_flag, flag);
7560 /* Try to block the asynchronous mailbox posting */
7561 rc = lpfc_sli4_async_mbox_block(phba);
7563 /* Successfully blocked, now issue sync mbox cmd */
7564 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
7565 if (rc != MBX_SUCCESS)
7566 lpfc_printf_log(phba, KERN_WARNING,
7568 "(%d):2597 Sync Mailbox command "
7569 "x%x (x%x/x%x) failure: "
7570 "mqe_sta: x%x mcqe_sta: x%x/x%x "
7572 mboxq->vport ? mboxq->vport->vpi : 0,
7573 mboxq->u.mb.mbxCommand,
7574 lpfc_sli_config_mbox_subsys_get(phba,
7576 lpfc_sli_config_mbox_opcode_get(phba,
7578 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
7579 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
7580 bf_get(lpfc_mcqe_ext_status,
7582 psli->sli_flag, flag);
7583 /* Unblock the async mailbox posting afterward */
7584 lpfc_sli4_async_mbox_unblock(phba);
7589 /* Now, interrupt mode asynchrous mailbox command */
7590 rc = lpfc_mbox_cmd_check(phba, mboxq);
7592 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7593 "(%d):2543 Mailbox command x%x (x%x/x%x) "
7594 "cannot issue Data: x%x x%x\n",
7595 mboxq->vport ? mboxq->vport->vpi : 0,
7596 mboxq->u.mb.mbxCommand,
7597 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7598 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7599 psli->sli_flag, flag);
7600 goto out_not_finished;
7603 /* Put the mailbox command to the driver internal FIFO */
7604 psli->slistat.mbox_busy++;
7605 spin_lock_irqsave(&phba->hbalock, iflags);
7606 lpfc_mbox_put(phba, mboxq);
7607 spin_unlock_irqrestore(&phba->hbalock, iflags);
7608 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7609 "(%d):0354 Mbox cmd issue - Enqueue Data: "
7610 "x%x (x%x/x%x) x%x x%x x%x\n",
7611 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
7612 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
7613 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7614 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7615 phba->pport->port_state,
7616 psli->sli_flag, MBX_NOWAIT);
7617 /* Wake up worker thread to transport mailbox command from head */
7618 lpfc_worker_wake_up(phba);
7623 return MBX_NOT_FINISHED;
7627 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
7628 * @phba: Pointer to HBA context object.
7630 * This function is called by worker thread to send a mailbox command to
7631 * SLI4 HBA firmware.
7635 lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
7637 struct lpfc_sli *psli = &phba->sli;
7638 LPFC_MBOXQ_t *mboxq;
7639 int rc = MBX_SUCCESS;
7640 unsigned long iflags;
7641 struct lpfc_mqe *mqe;
7644 /* Check interrupt mode before post async mailbox command */
7645 if (unlikely(!phba->sli4_hba.intr_enable))
7646 return MBX_NOT_FINISHED;
7648 /* Check for mailbox command service token */
7649 spin_lock_irqsave(&phba->hbalock, iflags);
7650 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7651 spin_unlock_irqrestore(&phba->hbalock, iflags);
7652 return MBX_NOT_FINISHED;
7654 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7655 spin_unlock_irqrestore(&phba->hbalock, iflags);
7656 return MBX_NOT_FINISHED;
7658 if (unlikely(phba->sli.mbox_active)) {
7659 spin_unlock_irqrestore(&phba->hbalock, iflags);
7660 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7661 "0384 There is pending active mailbox cmd\n");
7662 return MBX_NOT_FINISHED;
7664 /* Take the mailbox command service token */
7665 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7667 /* Get the next mailbox command from head of queue */
7668 mboxq = lpfc_mbox_get(phba);
7670 /* If no more mailbox command waiting for post, we're done */
7672 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7673 spin_unlock_irqrestore(&phba->hbalock, iflags);
7676 phba->sli.mbox_active = mboxq;
7677 spin_unlock_irqrestore(&phba->hbalock, iflags);
7679 /* Check device readiness for posting mailbox command */
7680 rc = lpfc_mbox_dev_check(phba);
7682 /* Driver clean routine will clean up pending mailbox */
7683 goto out_not_finished;
7685 /* Prepare the mbox command to be posted */
7686 mqe = &mboxq->u.mqe;
7687 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
7689 /* Start timer for the mbox_tmo and log some mailbox post messages */
7690 mod_timer(&psli->mbox_tmo, (jiffies +
7691 msecs_to_jiffies(1000 * lpfc_mbox_tmo_val(phba, mboxq))));
7693 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7694 "(%d):0355 Mailbox cmd x%x (x%x/x%x) issue Data: "
7696 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
7697 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7698 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7699 phba->pport->port_state, psli->sli_flag);
7701 if (mbx_cmnd != MBX_HEARTBEAT) {
7703 lpfc_debugfs_disc_trc(mboxq->vport,
7704 LPFC_DISC_TRC_MBOX_VPORT,
7705 "MBOX Send vport: cmd:x%x mb:x%x x%x",
7706 mbx_cmnd, mqe->un.mb_words[0],
7707 mqe->un.mb_words[1]);
7709 lpfc_debugfs_disc_trc(phba->pport,
7711 "MBOX Send: cmd:x%x mb:x%x x%x",
7712 mbx_cmnd, mqe->un.mb_words[0],
7713 mqe->un.mb_words[1]);
7716 psli->slistat.mbox_cmd++;
7718 /* Post the mailbox command to the port */
7719 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
7720 if (rc != MBX_SUCCESS) {
7721 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7722 "(%d):2533 Mailbox command x%x (x%x/x%x) "
7723 "cannot issue Data: x%x x%x\n",
7724 mboxq->vport ? mboxq->vport->vpi : 0,
7725 mboxq->u.mb.mbxCommand,
7726 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7727 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7728 psli->sli_flag, MBX_NOWAIT);
7729 goto out_not_finished;
7735 spin_lock_irqsave(&phba->hbalock, iflags);
7736 if (phba->sli.mbox_active) {
7737 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
7738 __lpfc_mbox_cmpl_put(phba, mboxq);
7739 /* Release the token */
7740 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7741 phba->sli.mbox_active = NULL;
7743 spin_unlock_irqrestore(&phba->hbalock, iflags);
7745 return MBX_NOT_FINISHED;
7749 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
7750 * @phba: Pointer to HBA context object.
7751 * @pmbox: Pointer to mailbox object.
7752 * @flag: Flag indicating how the mailbox need to be processed.
7754 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
7755 * the API jump table function pointer from the lpfc_hba struct.
7757 * Return codes the caller owns the mailbox command after the return of the
7761 lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
7763 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
7767 * lpfc_mbox_api_table_setup - Set up mbox api function jump table
7768 * @phba: The hba struct for which this call is being executed.
7769 * @dev_grp: The HBA PCI-Device group number.
7771 * This routine sets up the mbox interface API function jump table in @phba
7773 * Returns: 0 - success, -ENODEV - failure.
7776 lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
7780 case LPFC_PCI_DEV_LP:
7781 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
7782 phba->lpfc_sli_handle_slow_ring_event =
7783 lpfc_sli_handle_slow_ring_event_s3;
7784 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
7785 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
7786 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
7788 case LPFC_PCI_DEV_OC:
7789 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
7790 phba->lpfc_sli_handle_slow_ring_event =
7791 lpfc_sli_handle_slow_ring_event_s4;
7792 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
7793 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
7794 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
7797 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7798 "1420 Invalid HBA PCI-device group: 0x%x\n",
7807 * __lpfc_sli_ringtx_put - Add an iocb to the txq
7808 * @phba: Pointer to HBA context object.
7809 * @pring: Pointer to driver SLI ring object.
7810 * @piocb: Pointer to address of newly added command iocb.
7812 * This function is called with hbalock held to add a command
7813 * iocb to the txq when SLI layer cannot submit the command iocb
7817 __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7818 struct lpfc_iocbq *piocb)
7820 /* Insert the caller's iocb in the txq tail for later processing. */
7821 list_add_tail(&piocb->list, &pring->txq);
7825 * lpfc_sli_next_iocb - Get the next iocb in the txq
7826 * @phba: Pointer to HBA context object.
7827 * @pring: Pointer to driver SLI ring object.
7828 * @piocb: Pointer to address of newly added command iocb.
7830 * This function is called with hbalock held before a new
7831 * iocb is submitted to the firmware. This function checks
7832 * txq to flush the iocbs in txq to Firmware before
7833 * submitting new iocbs to the Firmware.
7834 * If there are iocbs in the txq which need to be submitted
7835 * to firmware, lpfc_sli_next_iocb returns the first element
7836 * of the txq after dequeuing it from txq.
7837 * If there is no iocb in the txq then the function will return
7838 * *piocb and *piocb is set to NULL. Caller needs to check
7839 * *piocb to find if there are more commands in the txq.
7841 static struct lpfc_iocbq *
7842 lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7843 struct lpfc_iocbq **piocb)
7845 struct lpfc_iocbq * nextiocb;
7847 nextiocb = lpfc_sli_ringtx_get(phba, pring);
7857 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
7858 * @phba: Pointer to HBA context object.
7859 * @ring_number: SLI ring number to issue iocb on.
7860 * @piocb: Pointer to command iocb.
7861 * @flag: Flag indicating if this command can be put into txq.
7863 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
7864 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
7865 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
7866 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
7867 * this function allows only iocbs for posting buffers. This function finds
7868 * next available slot in the command ring and posts the command to the
7869 * available slot and writes the port attention register to request HBA start
7870 * processing new iocb. If there is no slot available in the ring and
7871 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
7872 * the function returns IOCB_BUSY.
7874 * This function is called with hbalock held. The function will return success
7875 * after it successfully submit the iocb to firmware or after adding to the
7879 __lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
7880 struct lpfc_iocbq *piocb, uint32_t flag)
7882 struct lpfc_iocbq *nextiocb;
7884 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
7886 if (piocb->iocb_cmpl && (!piocb->vport) &&
7887 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
7888 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
7889 lpfc_printf_log(phba, KERN_ERR,
7890 LOG_SLI | LOG_VPORT,
7891 "1807 IOCB x%x failed. No vport\n",
7892 piocb->iocb.ulpCommand);
7898 /* If the PCI channel is in offline state, do not post iocbs. */
7899 if (unlikely(pci_channel_offline(phba->pcidev)))
7902 /* If HBA has a deferred error attention, fail the iocb. */
7903 if (unlikely(phba->hba_flag & DEFER_ERATT))
7907 * We should never get an IOCB if we are in a < LINK_DOWN state
7909 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
7913 * Check to see if we are blocking IOCB processing because of a
7914 * outstanding event.
7916 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
7919 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
7921 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
7922 * can be issued if the link is not up.
7924 switch (piocb->iocb.ulpCommand) {
7925 case CMD_GEN_REQUEST64_CR:
7926 case CMD_GEN_REQUEST64_CX:
7927 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
7928 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
7929 FC_RCTL_DD_UNSOL_CMD) ||
7930 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
7931 MENLO_TRANSPORT_TYPE))
7935 case CMD_QUE_RING_BUF_CN:
7936 case CMD_QUE_RING_BUF64_CN:
7938 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
7939 * completion, iocb_cmpl MUST be 0.
7941 if (piocb->iocb_cmpl)
7942 piocb->iocb_cmpl = NULL;
7944 case CMD_CREATE_XRI_CR:
7945 case CMD_CLOSE_XRI_CN:
7946 case CMD_CLOSE_XRI_CX:
7953 * For FCP commands, we must be in a state where we can process link
7956 } else if (unlikely(pring->ringno == phba->sli.fcp_ring &&
7957 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
7961 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
7962 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
7963 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
7966 lpfc_sli_update_ring(phba, pring);
7968 lpfc_sli_update_full_ring(phba, pring);
7971 return IOCB_SUCCESS;
7976 pring->stats.iocb_cmd_delay++;
7980 if (!(flag & SLI_IOCB_RET_IOCB)) {
7981 __lpfc_sli_ringtx_put(phba, pring, piocb);
7982 return IOCB_SUCCESS;
7989 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
7990 * @phba: Pointer to HBA context object.
7991 * @piocb: Pointer to command iocb.
7992 * @sglq: Pointer to the scatter gather queue object.
7994 * This routine converts the bpl or bde that is in the IOCB
7995 * to a sgl list for the sli4 hardware. The physical address
7996 * of the bpl/bde is converted back to a virtual address.
7997 * If the IOCB contains a BPL then the list of BDE's is
7998 * converted to sli4_sge's. If the IOCB contains a single
7999 * BDE then it is converted to a single sli_sge.
8000 * The IOCB is still in cpu endianess so the contents of
8001 * the bpl can be used without byte swapping.
8003 * Returns valid XRI = Success, NO_XRI = Failure.
8006 lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
8007 struct lpfc_sglq *sglq)
8009 uint16_t xritag = NO_XRI;
8010 struct ulp_bde64 *bpl = NULL;
8011 struct ulp_bde64 bde;
8012 struct sli4_sge *sgl = NULL;
8013 struct lpfc_dmabuf *dmabuf;
8017 uint32_t offset = 0; /* accumulated offset in the sg request list */
8018 int inbound = 0; /* number of sg reply entries inbound from firmware */
8020 if (!piocbq || !sglq)
8023 sgl = (struct sli4_sge *)sglq->sgl;
8024 icmd = &piocbq->iocb;
8025 if (icmd->ulpCommand == CMD_XMIT_BLS_RSP64_CX)
8026 return sglq->sli4_xritag;
8027 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
8028 numBdes = icmd->un.genreq64.bdl.bdeSize /
8029 sizeof(struct ulp_bde64);
8030 /* The addrHigh and addrLow fields within the IOCB
8031 * have not been byteswapped yet so there is no
8032 * need to swap them back.
8034 if (piocbq->context3)
8035 dmabuf = (struct lpfc_dmabuf *)piocbq->context3;
8039 bpl = (struct ulp_bde64 *)dmabuf->virt;
8043 for (i = 0; i < numBdes; i++) {
8044 /* Should already be byte swapped. */
8045 sgl->addr_hi = bpl->addrHigh;
8046 sgl->addr_lo = bpl->addrLow;
8048 sgl->word2 = le32_to_cpu(sgl->word2);
8049 if ((i+1) == numBdes)
8050 bf_set(lpfc_sli4_sge_last, sgl, 1);
8052 bf_set(lpfc_sli4_sge_last, sgl, 0);
8053 /* swap the size field back to the cpu so we
8054 * can assign it to the sgl.
8056 bde.tus.w = le32_to_cpu(bpl->tus.w);
8057 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
8058 /* The offsets in the sgl need to be accumulated
8059 * separately for the request and reply lists.
8060 * The request is always first, the reply follows.
8062 if (piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) {
8063 /* add up the reply sg entries */
8064 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
8066 /* first inbound? reset the offset */
8069 bf_set(lpfc_sli4_sge_offset, sgl, offset);
8070 bf_set(lpfc_sli4_sge_type, sgl,
8071 LPFC_SGE_TYPE_DATA);
8072 offset += bde.tus.f.bdeSize;
8074 sgl->word2 = cpu_to_le32(sgl->word2);
8078 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
8079 /* The addrHigh and addrLow fields of the BDE have not
8080 * been byteswapped yet so they need to be swapped
8081 * before putting them in the sgl.
8084 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
8086 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
8087 sgl->word2 = le32_to_cpu(sgl->word2);
8088 bf_set(lpfc_sli4_sge_last, sgl, 1);
8089 sgl->word2 = cpu_to_le32(sgl->word2);
8091 cpu_to_le32(icmd->un.genreq64.bdl.bdeSize);
8093 return sglq->sli4_xritag;
8097 * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution
8098 * @phba: Pointer to HBA context object.
8100 * This routine performs a roundrobin SCSI command to SLI4 FCP WQ index
8101 * distribution. This is called by __lpfc_sli_issue_iocb_s4() with the hbalock
8104 * Return: index into SLI4 fast-path FCP queue index.
8107 lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba)
8109 struct lpfc_vector_map_info *cpup;
8112 if (phba->cfg_fcp_io_sched == LPFC_FCP_SCHED_BY_CPU
8113 && phba->cfg_fcp_io_channel > 1) {
8114 cpu = smp_processor_id();
8115 if (cpu < phba->sli4_hba.num_present_cpu) {
8116 cpup = phba->sli4_hba.cpu_map;
8118 return cpup->channel_id;
8121 chann = atomic_add_return(1, &phba->fcp_qidx);
8122 chann = (chann % phba->cfg_fcp_io_channel);
8127 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
8128 * @phba: Pointer to HBA context object.
8129 * @piocb: Pointer to command iocb.
8130 * @wqe: Pointer to the work queue entry.
8132 * This routine converts the iocb command to its Work Queue Entry
8133 * equivalent. The wqe pointer should not have any fields set when
8134 * this routine is called because it will memcpy over them.
8135 * This routine does not set the CQ_ID or the WQEC bits in the
8138 * Returns: 0 = Success, IOCB_ERROR = Failure.
8141 lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
8142 union lpfc_wqe *wqe)
8144 uint32_t xmit_len = 0, total_len = 0;
8148 uint8_t command_type = ELS_COMMAND_NON_FIP;
8151 uint16_t abrt_iotag;
8152 struct lpfc_iocbq *abrtiocbq;
8153 struct ulp_bde64 *bpl = NULL;
8154 uint32_t els_id = LPFC_ELS_ID_DEFAULT;
8156 struct ulp_bde64 bde;
8157 struct lpfc_nodelist *ndlp;
8161 fip = phba->hba_flag & HBA_FIP_SUPPORT;
8162 /* The fcp commands will set command type */
8163 if (iocbq->iocb_flag & LPFC_IO_FCP)
8164 command_type = FCP_COMMAND;
8165 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
8166 command_type = ELS_COMMAND_FIP;
8168 command_type = ELS_COMMAND_NON_FIP;
8170 /* Some of the fields are in the right position already */
8171 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
8172 abort_tag = (uint32_t) iocbq->iotag;
8173 xritag = iocbq->sli4_xritag;
8174 wqe->generic.wqe_com.word7 = 0; /* The ct field has moved so reset */
8175 wqe->generic.wqe_com.word10 = 0;
8176 /* words0-2 bpl convert bde */
8177 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
8178 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
8179 sizeof(struct ulp_bde64);
8180 bpl = (struct ulp_bde64 *)
8181 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
8185 /* Should already be byte swapped. */
8186 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
8187 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
8188 /* swap the size field back to the cpu so we
8189 * can assign it to the sgl.
8191 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
8192 xmit_len = wqe->generic.bde.tus.f.bdeSize;
8194 for (i = 0; i < numBdes; i++) {
8195 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
8196 total_len += bde.tus.f.bdeSize;
8199 xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
8201 iocbq->iocb.ulpIoTag = iocbq->iotag;
8202 cmnd = iocbq->iocb.ulpCommand;
8204 switch (iocbq->iocb.ulpCommand) {
8205 case CMD_ELS_REQUEST64_CR:
8206 if (iocbq->iocb_flag & LPFC_IO_LIBDFC)
8207 ndlp = iocbq->context_un.ndlp;
8209 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8210 if (!iocbq->iocb.ulpLe) {
8211 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8212 "2007 Only Limited Edition cmd Format"
8213 " supported 0x%x\n",
8214 iocbq->iocb.ulpCommand);
8218 wqe->els_req.payload_len = xmit_len;
8219 /* Els_reguest64 has a TMO */
8220 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
8221 iocbq->iocb.ulpTimeout);
8222 /* Need a VF for word 4 set the vf bit*/
8223 bf_set(els_req64_vf, &wqe->els_req, 0);
8224 /* And a VFID for word 12 */
8225 bf_set(els_req64_vfid, &wqe->els_req, 0);
8226 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
8227 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8228 iocbq->iocb.ulpContext);
8229 bf_set(wqe_ct, &wqe->els_req.wqe_com, ct);
8230 bf_set(wqe_pu, &wqe->els_req.wqe_com, 0);
8231 /* CCP CCPE PV PRI in word10 were set in the memcpy */
8232 if (command_type == ELS_COMMAND_FIP)
8233 els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
8234 >> LPFC_FIP_ELS_ID_SHIFT);
8235 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
8236 iocbq->context2)->virt);
8237 if_type = bf_get(lpfc_sli_intf_if_type,
8238 &phba->sli4_hba.sli_intf);
8239 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8240 if (pcmd && (*pcmd == ELS_CMD_FLOGI ||
8241 *pcmd == ELS_CMD_SCR ||
8242 *pcmd == ELS_CMD_FDISC ||
8243 *pcmd == ELS_CMD_LOGO ||
8244 *pcmd == ELS_CMD_PLOGI)) {
8245 bf_set(els_req64_sp, &wqe->els_req, 1);
8246 bf_set(els_req64_sid, &wqe->els_req,
8247 iocbq->vport->fc_myDID);
8248 if ((*pcmd == ELS_CMD_FLOGI) &&
8249 !(phba->fc_topology ==
8250 LPFC_TOPOLOGY_LOOP))
8251 bf_set(els_req64_sid, &wqe->els_req, 0);
8252 bf_set(wqe_ct, &wqe->els_req.wqe_com, 1);
8253 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8254 phba->vpi_ids[iocbq->vport->vpi]);
8255 } else if (pcmd && iocbq->context1) {
8256 bf_set(wqe_ct, &wqe->els_req.wqe_com, 0);
8257 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8258 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8261 bf_set(wqe_temp_rpi, &wqe->els_req.wqe_com,
8262 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8263 bf_set(wqe_els_id, &wqe->els_req.wqe_com, els_id);
8264 bf_set(wqe_dbde, &wqe->els_req.wqe_com, 1);
8265 bf_set(wqe_iod, &wqe->els_req.wqe_com, LPFC_WQE_IOD_READ);
8266 bf_set(wqe_qosd, &wqe->els_req.wqe_com, 1);
8267 bf_set(wqe_lenloc, &wqe->els_req.wqe_com, LPFC_WQE_LENLOC_NONE);
8268 bf_set(wqe_ebde_cnt, &wqe->els_req.wqe_com, 0);
8269 wqe->els_req.max_response_payload_len = total_len - xmit_len;
8271 case CMD_XMIT_SEQUENCE64_CX:
8272 bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com,
8273 iocbq->iocb.un.ulpWord[3]);
8274 bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com,
8275 iocbq->iocb.unsli3.rcvsli3.ox_id);
8276 /* The entire sequence is transmitted for this IOCB */
8277 xmit_len = total_len;
8278 cmnd = CMD_XMIT_SEQUENCE64_CR;
8279 if (phba->link_flag & LS_LOOPBACK_MODE)
8280 bf_set(wqe_xo, &wqe->xmit_sequence.wge_ctl, 1);
8281 case CMD_XMIT_SEQUENCE64_CR:
8282 /* word3 iocb=io_tag32 wqe=reserved */
8283 wqe->xmit_sequence.rsvd3 = 0;
8284 /* word4 relative_offset memcpy */
8285 /* word5 r_ctl/df_ctl memcpy */
8286 bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0);
8287 bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1);
8288 bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com,
8289 LPFC_WQE_IOD_WRITE);
8290 bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com,
8291 LPFC_WQE_LENLOC_WORD12);
8292 bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0);
8293 wqe->xmit_sequence.xmit_len = xmit_len;
8294 command_type = OTHER_COMMAND;
8296 case CMD_XMIT_BCAST64_CN:
8297 /* word3 iocb=iotag32 wqe=seq_payload_len */
8298 wqe->xmit_bcast64.seq_payload_len = xmit_len;
8299 /* word4 iocb=rsvd wqe=rsvd */
8300 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
8301 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
8302 bf_set(wqe_ct, &wqe->xmit_bcast64.wqe_com,
8303 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8304 bf_set(wqe_dbde, &wqe->xmit_bcast64.wqe_com, 1);
8305 bf_set(wqe_iod, &wqe->xmit_bcast64.wqe_com, LPFC_WQE_IOD_WRITE);
8306 bf_set(wqe_lenloc, &wqe->xmit_bcast64.wqe_com,
8307 LPFC_WQE_LENLOC_WORD3);
8308 bf_set(wqe_ebde_cnt, &wqe->xmit_bcast64.wqe_com, 0);
8310 case CMD_FCP_IWRITE64_CR:
8311 command_type = FCP_COMMAND_DATA_OUT;
8312 /* word3 iocb=iotag wqe=payload_offset_len */
8313 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8314 bf_set(payload_offset_len, &wqe->fcp_iwrite,
8315 xmit_len + sizeof(struct fcp_rsp));
8316 bf_set(cmd_buff_len, &wqe->fcp_iwrite,
8318 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8319 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8320 bf_set(wqe_erp, &wqe->fcp_iwrite.wqe_com,
8321 iocbq->iocb.ulpFCP2Rcvy);
8322 bf_set(wqe_lnk, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpXS);
8323 /* Always open the exchange */
8324 bf_set(wqe_xc, &wqe->fcp_iwrite.wqe_com, 0);
8325 bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE);
8326 bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com,
8327 LPFC_WQE_LENLOC_WORD4);
8328 bf_set(wqe_ebde_cnt, &wqe->fcp_iwrite.wqe_com, 0);
8329 bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpPU);
8330 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 1);
8331 if (iocbq->iocb_flag & LPFC_IO_OAS) {
8332 bf_set(wqe_oas, &wqe->fcp_iwrite.wqe_com, 1);
8333 if (phba->cfg_XLanePriority) {
8334 bf_set(wqe_ccpe, &wqe->fcp_iwrite.wqe_com, 1);
8335 bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
8336 (phba->cfg_XLanePriority << 1));
8340 case CMD_FCP_IREAD64_CR:
8341 /* word3 iocb=iotag wqe=payload_offset_len */
8342 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8343 bf_set(payload_offset_len, &wqe->fcp_iread,
8344 xmit_len + sizeof(struct fcp_rsp));
8345 bf_set(cmd_buff_len, &wqe->fcp_iread,
8347 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8348 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8349 bf_set(wqe_erp, &wqe->fcp_iread.wqe_com,
8350 iocbq->iocb.ulpFCP2Rcvy);
8351 bf_set(wqe_lnk, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpXS);
8352 /* Always open the exchange */
8353 bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
8354 bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ);
8355 bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com,
8356 LPFC_WQE_LENLOC_WORD4);
8357 bf_set(wqe_ebde_cnt, &wqe->fcp_iread.wqe_com, 0);
8358 bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpPU);
8359 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 1);
8360 if (iocbq->iocb_flag & LPFC_IO_OAS) {
8361 bf_set(wqe_oas, &wqe->fcp_iread.wqe_com, 1);
8362 if (phba->cfg_XLanePriority) {
8363 bf_set(wqe_ccpe, &wqe->fcp_iread.wqe_com, 1);
8364 bf_set(wqe_ccp, &wqe->fcp_iread.wqe_com,
8365 (phba->cfg_XLanePriority << 1));
8369 case CMD_FCP_ICMND64_CR:
8370 /* word3 iocb=iotag wqe=payload_offset_len */
8371 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8372 bf_set(payload_offset_len, &wqe->fcp_icmd,
8373 xmit_len + sizeof(struct fcp_rsp));
8374 bf_set(cmd_buff_len, &wqe->fcp_icmd,
8376 /* word3 iocb=IO_TAG wqe=reserved */
8377 bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0);
8378 /* Always open the exchange */
8379 bf_set(wqe_xc, &wqe->fcp_icmd.wqe_com, 0);
8380 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 1);
8381 bf_set(wqe_iod, &wqe->fcp_icmd.wqe_com, LPFC_WQE_IOD_WRITE);
8382 bf_set(wqe_qosd, &wqe->fcp_icmd.wqe_com, 1);
8383 bf_set(wqe_lenloc, &wqe->fcp_icmd.wqe_com,
8384 LPFC_WQE_LENLOC_NONE);
8385 bf_set(wqe_ebde_cnt, &wqe->fcp_icmd.wqe_com, 0);
8386 bf_set(wqe_erp, &wqe->fcp_icmd.wqe_com,
8387 iocbq->iocb.ulpFCP2Rcvy);
8388 if (iocbq->iocb_flag & LPFC_IO_OAS) {
8389 bf_set(wqe_oas, &wqe->fcp_icmd.wqe_com, 1);
8390 if (phba->cfg_XLanePriority) {
8391 bf_set(wqe_ccpe, &wqe->fcp_icmd.wqe_com, 1);
8392 bf_set(wqe_ccp, &wqe->fcp_icmd.wqe_com,
8393 (phba->cfg_XLanePriority << 1));
8397 case CMD_GEN_REQUEST64_CR:
8398 /* For this command calculate the xmit length of the
8402 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
8403 sizeof(struct ulp_bde64);
8404 for (i = 0; i < numBdes; i++) {
8405 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
8406 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
8408 xmit_len += bde.tus.f.bdeSize;
8410 /* word3 iocb=IO_TAG wqe=request_payload_len */
8411 wqe->gen_req.request_payload_len = xmit_len;
8412 /* word4 iocb=parameter wqe=relative_offset memcpy */
8413 /* word5 [rctl, type, df_ctl, la] copied in memcpy */
8414 /* word6 context tag copied in memcpy */
8415 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
8416 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
8417 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8418 "2015 Invalid CT %x command 0x%x\n",
8419 ct, iocbq->iocb.ulpCommand);
8422 bf_set(wqe_ct, &wqe->gen_req.wqe_com, 0);
8423 bf_set(wqe_tmo, &wqe->gen_req.wqe_com, iocbq->iocb.ulpTimeout);
8424 bf_set(wqe_pu, &wqe->gen_req.wqe_com, iocbq->iocb.ulpPU);
8425 bf_set(wqe_dbde, &wqe->gen_req.wqe_com, 1);
8426 bf_set(wqe_iod, &wqe->gen_req.wqe_com, LPFC_WQE_IOD_READ);
8427 bf_set(wqe_qosd, &wqe->gen_req.wqe_com, 1);
8428 bf_set(wqe_lenloc, &wqe->gen_req.wqe_com, LPFC_WQE_LENLOC_NONE);
8429 bf_set(wqe_ebde_cnt, &wqe->gen_req.wqe_com, 0);
8430 wqe->gen_req.max_response_payload_len = total_len - xmit_len;
8431 command_type = OTHER_COMMAND;
8433 case CMD_XMIT_ELS_RSP64_CX:
8434 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8435 /* words0-2 BDE memcpy */
8436 /* word3 iocb=iotag32 wqe=response_payload_len */
8437 wqe->xmit_els_rsp.response_payload_len = xmit_len;
8439 wqe->xmit_els_rsp.word4 = 0;
8440 /* word5 iocb=rsvd wge=did */
8441 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
8442 iocbq->iocb.un.xseq64.xmit_els_remoteID);
8444 if_type = bf_get(lpfc_sli_intf_if_type,
8445 &phba->sli4_hba.sli_intf);
8446 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8447 if (iocbq->vport->fc_flag & FC_PT2PT) {
8448 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
8449 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
8450 iocbq->vport->fc_myDID);
8451 if (iocbq->vport->fc_myDID == Fabric_DID) {
8453 &wqe->xmit_els_rsp.wqe_dest, 0);
8457 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com,
8458 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8459 bf_set(wqe_pu, &wqe->xmit_els_rsp.wqe_com, iocbq->iocb.ulpPU);
8460 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
8461 iocbq->iocb.unsli3.rcvsli3.ox_id);
8462 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
8463 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
8464 phba->vpi_ids[iocbq->vport->vpi]);
8465 bf_set(wqe_dbde, &wqe->xmit_els_rsp.wqe_com, 1);
8466 bf_set(wqe_iod, &wqe->xmit_els_rsp.wqe_com, LPFC_WQE_IOD_WRITE);
8467 bf_set(wqe_qosd, &wqe->xmit_els_rsp.wqe_com, 1);
8468 bf_set(wqe_lenloc, &wqe->xmit_els_rsp.wqe_com,
8469 LPFC_WQE_LENLOC_WORD3);
8470 bf_set(wqe_ebde_cnt, &wqe->xmit_els_rsp.wqe_com, 0);
8471 bf_set(wqe_rsp_temp_rpi, &wqe->xmit_els_rsp,
8472 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8473 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
8474 iocbq->context2)->virt);
8475 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
8476 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
8477 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
8478 iocbq->vport->fc_myDID);
8479 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com, 1);
8480 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
8481 phba->vpi_ids[phba->pport->vpi]);
8483 command_type = OTHER_COMMAND;
8485 case CMD_CLOSE_XRI_CN:
8486 case CMD_ABORT_XRI_CN:
8487 case CMD_ABORT_XRI_CX:
8488 /* words 0-2 memcpy should be 0 rserved */
8489 /* port will send abts */
8490 abrt_iotag = iocbq->iocb.un.acxri.abortContextTag;
8491 if (abrt_iotag != 0 && abrt_iotag <= phba->sli.last_iotag) {
8492 abrtiocbq = phba->sli.iocbq_lookup[abrt_iotag];
8493 fip = abrtiocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK;
8497 if ((iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN) || fip)
8499 * The link is down, or the command was ELS_FIP
8500 * so the fw does not need to send abts
8503 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
8505 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
8506 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
8507 /* word5 iocb=CONTEXT_TAG|IO_TAG wqe=reserved */
8508 wqe->abort_cmd.rsrvd5 = 0;
8509 bf_set(wqe_ct, &wqe->abort_cmd.wqe_com,
8510 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8511 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
8513 * The abort handler will send us CMD_ABORT_XRI_CN or
8514 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
8516 bf_set(wqe_cmnd, &wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
8517 bf_set(wqe_qosd, &wqe->abort_cmd.wqe_com, 1);
8518 bf_set(wqe_lenloc, &wqe->abort_cmd.wqe_com,
8519 LPFC_WQE_LENLOC_NONE);
8520 cmnd = CMD_ABORT_XRI_CX;
8521 command_type = OTHER_COMMAND;
8524 case CMD_XMIT_BLS_RSP64_CX:
8525 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8526 /* As BLS ABTS RSP WQE is very different from other WQEs,
8527 * we re-construct this WQE here based on information in
8528 * iocbq from scratch.
8530 memset(wqe, 0, sizeof(union lpfc_wqe));
8531 /* OX_ID is invariable to who sent ABTS to CT exchange */
8532 bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
8533 bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_rsp));
8534 if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_rsp) ==
8535 LPFC_ABTS_UNSOL_INT) {
8536 /* ABTS sent by initiator to CT exchange, the
8537 * RX_ID field will be filled with the newly
8538 * allocated responder XRI.
8540 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
8541 iocbq->sli4_xritag);
8543 /* ABTS sent by responder to CT exchange, the
8544 * RX_ID field will be filled with the responder
8547 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
8548 bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_rsp));
8550 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
8551 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
8554 bf_set(wqe_els_did, &wqe->xmit_bls_rsp.wqe_dest,
8556 bf_set(xmit_bls_rsp64_temprpi, &wqe->xmit_bls_rsp,
8557 iocbq->iocb.ulpContext);
8558 bf_set(wqe_ct, &wqe->xmit_bls_rsp.wqe_com, 1);
8559 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
8560 phba->vpi_ids[phba->pport->vpi]);
8561 bf_set(wqe_qosd, &wqe->xmit_bls_rsp.wqe_com, 1);
8562 bf_set(wqe_lenloc, &wqe->xmit_bls_rsp.wqe_com,
8563 LPFC_WQE_LENLOC_NONE);
8564 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
8565 command_type = OTHER_COMMAND;
8566 if (iocbq->iocb.un.xseq64.w5.hcsw.Rctl == FC_RCTL_BA_RJT) {
8567 bf_set(xmit_bls_rsp64_rjt_vspec, &wqe->xmit_bls_rsp,
8568 bf_get(lpfc_vndr_code, &iocbq->iocb.un.bls_rsp));
8569 bf_set(xmit_bls_rsp64_rjt_expc, &wqe->xmit_bls_rsp,
8570 bf_get(lpfc_rsn_expln, &iocbq->iocb.un.bls_rsp));
8571 bf_set(xmit_bls_rsp64_rjt_rsnc, &wqe->xmit_bls_rsp,
8572 bf_get(lpfc_rsn_code, &iocbq->iocb.un.bls_rsp));
8576 case CMD_XRI_ABORTED_CX:
8577 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
8578 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
8579 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
8580 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
8581 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
8583 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8584 "2014 Invalid command 0x%x\n",
8585 iocbq->iocb.ulpCommand);
8590 if (iocbq->iocb_flag & LPFC_IO_DIF_PASS)
8591 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_PASSTHRU);
8592 else if (iocbq->iocb_flag & LPFC_IO_DIF_STRIP)
8593 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_STRIP);
8594 else if (iocbq->iocb_flag & LPFC_IO_DIF_INSERT)
8595 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_INSERT);
8596 iocbq->iocb_flag &= ~(LPFC_IO_DIF_PASS | LPFC_IO_DIF_STRIP |
8597 LPFC_IO_DIF_INSERT);
8598 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
8599 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
8600 wqe->generic.wqe_com.abort_tag = abort_tag;
8601 bf_set(wqe_cmd_type, &wqe->generic.wqe_com, command_type);
8602 bf_set(wqe_cmnd, &wqe->generic.wqe_com, cmnd);
8603 bf_set(wqe_class, &wqe->generic.wqe_com, iocbq->iocb.ulpClass);
8604 bf_set(wqe_cqid, &wqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
8609 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
8610 * @phba: Pointer to HBA context object.
8611 * @ring_number: SLI ring number to issue iocb on.
8612 * @piocb: Pointer to command iocb.
8613 * @flag: Flag indicating if this command can be put into txq.
8615 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
8616 * an iocb command to an HBA with SLI-4 interface spec.
8618 * This function is called with hbalock held. The function will return success
8619 * after it successfully submit the iocb to firmware or after adding to the
8623 __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
8624 struct lpfc_iocbq *piocb, uint32_t flag)
8626 struct lpfc_sglq *sglq;
8628 struct lpfc_queue *wq;
8629 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
8631 if (piocb->sli4_xritag == NO_XRI) {
8632 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
8633 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
8636 if (!list_empty(&pring->txq)) {
8637 if (!(flag & SLI_IOCB_RET_IOCB)) {
8638 __lpfc_sli_ringtx_put(phba,
8640 return IOCB_SUCCESS;
8645 sglq = __lpfc_sli_get_sglq(phba, piocb);
8647 if (!(flag & SLI_IOCB_RET_IOCB)) {
8648 __lpfc_sli_ringtx_put(phba,
8651 return IOCB_SUCCESS;
8657 } else if (piocb->iocb_flag & LPFC_IO_FCP) {
8658 /* These IO's already have an XRI and a mapped sgl. */
8662 * This is a continuation of a commandi,(CX) so this
8663 * sglq is on the active list
8665 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_lxritag);
8671 piocb->sli4_lxritag = sglq->sli4_lxritag;
8672 piocb->sli4_xritag = sglq->sli4_xritag;
8673 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocb, sglq))
8677 if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe))
8680 if ((piocb->iocb_flag & LPFC_IO_FCP) ||
8681 (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
8682 if (!phba->cfg_fof || (!(piocb->iocb_flag & LPFC_IO_OAS))) {
8683 wq = phba->sli4_hba.fcp_wq[piocb->fcp_wqidx];
8685 wq = phba->sli4_hba.oas_wq;
8687 if (lpfc_sli4_wq_put(wq, &wqe))
8690 if (unlikely(!phba->sli4_hba.els_wq))
8692 if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
8695 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
8701 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
8703 * This routine wraps the actual lockless version for issusing IOCB function
8704 * pointer from the lpfc_hba struct.
8707 * IOCB_ERROR - Error
8708 * IOCB_SUCCESS - Success
8712 __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
8713 struct lpfc_iocbq *piocb, uint32_t flag)
8715 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
8719 * lpfc_sli_api_table_setup - Set up sli api function jump table
8720 * @phba: The hba struct for which this call is being executed.
8721 * @dev_grp: The HBA PCI-Device group number.
8723 * This routine sets up the SLI interface API function jump table in @phba
8725 * Returns: 0 - success, -ENODEV - failure.
8728 lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
8732 case LPFC_PCI_DEV_LP:
8733 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
8734 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
8736 case LPFC_PCI_DEV_OC:
8737 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
8738 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
8741 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8742 "1419 Invalid HBA PCI-device group: 0x%x\n",
8747 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
8752 lpfc_sli_calc_ring(struct lpfc_hba *phba, uint32_t ring_number,
8753 struct lpfc_iocbq *piocb)
8757 if (phba->sli_rev == LPFC_SLI_REV4) {
8758 if (piocb->iocb_flag & (LPFC_IO_FCP | LPFC_USE_FCPWQIDX)) {
8760 * fcp_wqidx should already be setup based on what
8761 * completion queue we want to use.
8763 if (!(phba->cfg_fof) ||
8764 (!(piocb->iocb_flag & LPFC_IO_FOF))) {
8765 if (unlikely(!phba->sli4_hba.fcp_wq))
8766 return LPFC_HBA_ERROR;
8767 idx = lpfc_sli4_scmd_to_wqidx_distr(phba);
8768 piocb->fcp_wqidx = idx;
8769 ring_number = MAX_SLI3_CONFIGURED_RINGS + idx;
8771 if (unlikely(!phba->sli4_hba.oas_wq))
8772 return LPFC_HBA_ERROR;
8774 piocb->fcp_wqidx = idx;
8775 ring_number = LPFC_FCP_OAS_RING;
8783 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
8784 * @phba: Pointer to HBA context object.
8785 * @pring: Pointer to driver SLI ring object.
8786 * @piocb: Pointer to command iocb.
8787 * @flag: Flag indicating if this command can be put into txq.
8789 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
8790 * function. This function gets the hbalock and calls
8791 * __lpfc_sli_issue_iocb function and will return the error returned
8792 * by __lpfc_sli_issue_iocb function. This wrapper is used by
8793 * functions which do not hold hbalock.
8796 lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
8797 struct lpfc_iocbq *piocb, uint32_t flag)
8799 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
8800 struct lpfc_sli_ring *pring;
8801 struct lpfc_queue *fpeq;
8802 struct lpfc_eqe *eqe;
8803 unsigned long iflags;
8806 if (phba->sli_rev == LPFC_SLI_REV4) {
8807 ring_number = lpfc_sli_calc_ring(phba, ring_number, piocb);
8808 if (unlikely(ring_number == LPFC_HBA_ERROR))
8810 idx = piocb->fcp_wqidx;
8812 pring = &phba->sli.ring[ring_number];
8813 spin_lock_irqsave(&pring->ring_lock, iflags);
8814 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
8815 spin_unlock_irqrestore(&pring->ring_lock, iflags);
8817 if (lpfc_fcp_look_ahead && (piocb->iocb_flag & LPFC_IO_FCP)) {
8818 fcp_eq_hdl = &phba->sli4_hba.fcp_eq_hdl[idx];
8820 if (atomic_dec_and_test(&fcp_eq_hdl->
8823 /* Get associated EQ with this index */
8824 fpeq = phba->sli4_hba.hba_eq[idx];
8826 /* Turn off interrupts from this EQ */
8827 lpfc_sli4_eq_clr_intr(fpeq);
8830 * Process all the events on FCP EQ
8832 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
8833 lpfc_sli4_hba_handle_eqe(phba,
8835 fpeq->EQ_processed++;
8838 /* Always clear and re-arm the EQ */
8839 lpfc_sli4_eq_release(fpeq,
8842 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
8845 /* For now, SLI2/3 will still use hbalock */
8846 spin_lock_irqsave(&phba->hbalock, iflags);
8847 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
8848 spin_unlock_irqrestore(&phba->hbalock, iflags);
8854 * lpfc_extra_ring_setup - Extra ring setup function
8855 * @phba: Pointer to HBA context object.
8857 * This function is called while driver attaches with the
8858 * HBA to setup the extra ring. The extra ring is used
8859 * only when driver needs to support target mode functionality
8860 * or IP over FC functionalities.
8862 * This function is called with no lock held.
8865 lpfc_extra_ring_setup( struct lpfc_hba *phba)
8867 struct lpfc_sli *psli;
8868 struct lpfc_sli_ring *pring;
8872 /* Adjust cmd/rsp ring iocb entries more evenly */
8874 /* Take some away from the FCP ring */
8875 pring = &psli->ring[psli->fcp_ring];
8876 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8877 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8878 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8879 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
8881 /* and give them to the extra ring */
8882 pring = &psli->ring[psli->extra_ring];
8884 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8885 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8886 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8887 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
8889 /* Setup default profile for this ring */
8890 pring->iotag_max = 4096;
8891 pring->num_mask = 1;
8892 pring->prt[0].profile = 0; /* Mask 0 */
8893 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
8894 pring->prt[0].type = phba->cfg_multi_ring_type;
8895 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
8899 /* lpfc_sli_abts_err_handler - handle a failed ABTS request from an SLI3 port.
8900 * @phba: Pointer to HBA context object.
8901 * @iocbq: Pointer to iocb object.
8903 * The async_event handler calls this routine when it receives
8904 * an ASYNC_STATUS_CN event from the port. The port generates
8905 * this event when an Abort Sequence request to an rport fails
8906 * twice in succession. The abort could be originated by the
8907 * driver or by the port. The ABTS could have been for an ELS
8908 * or FCP IO. The port only generates this event when an ABTS
8909 * fails to complete after one retry.
8912 lpfc_sli_abts_err_handler(struct lpfc_hba *phba,
8913 struct lpfc_iocbq *iocbq)
8915 struct lpfc_nodelist *ndlp = NULL;
8916 uint16_t rpi = 0, vpi = 0;
8917 struct lpfc_vport *vport = NULL;
8919 /* The rpi in the ulpContext is vport-sensitive. */
8920 vpi = iocbq->iocb.un.asyncstat.sub_ctxt_tag;
8921 rpi = iocbq->iocb.ulpContext;
8923 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8924 "3092 Port generated ABTS async event "
8925 "on vpi %d rpi %d status 0x%x\n",
8926 vpi, rpi, iocbq->iocb.ulpStatus);
8928 vport = lpfc_find_vport_by_vpid(phba, vpi);
8931 ndlp = lpfc_findnode_rpi(vport, rpi);
8932 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
8935 if (iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT)
8936 lpfc_sli_abts_recover_port(vport, ndlp);
8940 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8941 "3095 Event Context not found, no "
8942 "action on vpi %d rpi %d status 0x%x, reason 0x%x\n",
8943 iocbq->iocb.ulpContext, iocbq->iocb.ulpStatus,
8947 /* lpfc_sli4_abts_err_handler - handle a failed ABTS request from an SLI4 port.
8948 * @phba: pointer to HBA context object.
8949 * @ndlp: nodelist pointer for the impacted rport.
8950 * @axri: pointer to the wcqe containing the failed exchange.
8952 * The driver calls this routine when it receives an ABORT_XRI_FCP CQE from the
8953 * port. The port generates this event when an abort exchange request to an
8954 * rport fails twice in succession with no reply. The abort could be originated
8955 * by the driver or by the port. The ABTS could have been for an ELS or FCP IO.
8958 lpfc_sli4_abts_err_handler(struct lpfc_hba *phba,
8959 struct lpfc_nodelist *ndlp,
8960 struct sli4_wcqe_xri_aborted *axri)
8962 struct lpfc_vport *vport;
8963 uint32_t ext_status = 0;
8965 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
8966 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8967 "3115 Node Context not found, driver "
8968 "ignoring abts err event\n");
8972 vport = ndlp->vport;
8973 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8974 "3116 Port generated FCP XRI ABORT event on "
8975 "vpi %d rpi %d xri x%x status 0x%x parameter x%x\n",
8976 ndlp->vport->vpi, phba->sli4_hba.rpi_ids[ndlp->nlp_rpi],
8977 bf_get(lpfc_wcqe_xa_xri, axri),
8978 bf_get(lpfc_wcqe_xa_status, axri),
8982 * Catch the ABTS protocol failure case. Older OCe FW releases returned
8983 * LOCAL_REJECT and 0 for a failed ABTS exchange and later OCe and
8984 * LPe FW releases returned LOCAL_REJECT and SEQUENCE_TIMEOUT.
8986 ext_status = axri->parameter & IOERR_PARAM_MASK;
8987 if ((bf_get(lpfc_wcqe_xa_status, axri) == IOSTAT_LOCAL_REJECT) &&
8988 ((ext_status == IOERR_SEQUENCE_TIMEOUT) || (ext_status == 0)))
8989 lpfc_sli_abts_recover_port(vport, ndlp);
8993 * lpfc_sli_async_event_handler - ASYNC iocb handler function
8994 * @phba: Pointer to HBA context object.
8995 * @pring: Pointer to driver SLI ring object.
8996 * @iocbq: Pointer to iocb object.
8998 * This function is called by the slow ring event handler
8999 * function when there is an ASYNC event iocb in the ring.
9000 * This function is called with no lock held.
9001 * Currently this function handles only temperature related
9002 * ASYNC events. The function decodes the temperature sensor
9003 * event message and posts events for the management applications.
9006 lpfc_sli_async_event_handler(struct lpfc_hba * phba,
9007 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
9011 struct temp_event temp_event_data;
9012 struct Scsi_Host *shost;
9015 icmd = &iocbq->iocb;
9016 evt_code = icmd->un.asyncstat.evt_code;
9019 case ASYNC_TEMP_WARN:
9020 case ASYNC_TEMP_SAFE:
9021 temp_event_data.data = (uint32_t) icmd->ulpContext;
9022 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
9023 if (evt_code == ASYNC_TEMP_WARN) {
9024 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
9025 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
9026 "0347 Adapter is very hot, please take "
9027 "corrective action. temperature : %d Celsius\n",
9028 (uint32_t) icmd->ulpContext);
9030 temp_event_data.event_code = LPFC_NORMAL_TEMP;
9031 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
9032 "0340 Adapter temperature is OK now. "
9033 "temperature : %d Celsius\n",
9034 (uint32_t) icmd->ulpContext);
9037 /* Send temperature change event to applications */
9038 shost = lpfc_shost_from_vport(phba->pport);
9039 fc_host_post_vendor_event(shost, fc_get_event_number(),
9040 sizeof(temp_event_data), (char *) &temp_event_data,
9043 case ASYNC_STATUS_CN:
9044 lpfc_sli_abts_err_handler(phba, iocbq);
9047 iocb_w = (uint32_t *) icmd;
9048 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9049 "0346 Ring %d handler: unexpected ASYNC_STATUS"
9051 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
9052 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
9053 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
9054 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
9055 pring->ringno, icmd->un.asyncstat.evt_code,
9056 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
9057 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
9058 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
9059 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
9067 * lpfc_sli_setup - SLI ring setup function
9068 * @phba: Pointer to HBA context object.
9070 * lpfc_sli_setup sets up rings of the SLI interface with
9071 * number of iocbs per ring and iotags. This function is
9072 * called while driver attach to the HBA and before the
9073 * interrupts are enabled. So there is no need for locking.
9075 * This function always returns 0.
9078 lpfc_sli_setup(struct lpfc_hba *phba)
9080 int i, totiocbsize = 0;
9081 struct lpfc_sli *psli = &phba->sli;
9082 struct lpfc_sli_ring *pring;
9084 psli->num_rings = MAX_SLI3_CONFIGURED_RINGS;
9085 if (phba->sli_rev == LPFC_SLI_REV4)
9086 psli->num_rings += phba->cfg_fcp_io_channel;
9088 psli->fcp_ring = LPFC_FCP_RING;
9089 psli->next_ring = LPFC_FCP_NEXT_RING;
9090 psli->extra_ring = LPFC_EXTRA_RING;
9092 psli->iocbq_lookup = NULL;
9093 psli->iocbq_lookup_len = 0;
9094 psli->last_iotag = 0;
9096 for (i = 0; i < psli->num_rings; i++) {
9097 pring = &psli->ring[i];
9099 case LPFC_FCP_RING: /* ring 0 - FCP */
9100 /* numCiocb and numRiocb are used in config_port */
9101 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
9102 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
9103 pring->sli.sli3.numCiocb +=
9104 SLI2_IOCB_CMD_R1XTRA_ENTRIES;
9105 pring->sli.sli3.numRiocb +=
9106 SLI2_IOCB_RSP_R1XTRA_ENTRIES;
9107 pring->sli.sli3.numCiocb +=
9108 SLI2_IOCB_CMD_R3XTRA_ENTRIES;
9109 pring->sli.sli3.numRiocb +=
9110 SLI2_IOCB_RSP_R3XTRA_ENTRIES;
9111 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
9112 SLI3_IOCB_CMD_SIZE :
9114 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
9115 SLI3_IOCB_RSP_SIZE :
9117 pring->iotag_ctr = 0;
9119 (phba->cfg_hba_queue_depth * 2);
9120 pring->fast_iotag = pring->iotag_max;
9121 pring->num_mask = 0;
9123 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
9124 /* numCiocb and numRiocb are used in config_port */
9125 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
9126 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
9127 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
9128 SLI3_IOCB_CMD_SIZE :
9130 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
9131 SLI3_IOCB_RSP_SIZE :
9133 pring->iotag_max = phba->cfg_hba_queue_depth;
9134 pring->num_mask = 0;
9136 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
9137 /* numCiocb and numRiocb are used in config_port */
9138 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
9139 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
9140 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
9141 SLI3_IOCB_CMD_SIZE :
9143 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
9144 SLI3_IOCB_RSP_SIZE :
9146 pring->fast_iotag = 0;
9147 pring->iotag_ctr = 0;
9148 pring->iotag_max = 4096;
9149 pring->lpfc_sli_rcv_async_status =
9150 lpfc_sli_async_event_handler;
9151 pring->num_mask = LPFC_MAX_RING_MASK;
9152 pring->prt[0].profile = 0; /* Mask 0 */
9153 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
9154 pring->prt[0].type = FC_TYPE_ELS;
9155 pring->prt[0].lpfc_sli_rcv_unsol_event =
9156 lpfc_els_unsol_event;
9157 pring->prt[1].profile = 0; /* Mask 1 */
9158 pring->prt[1].rctl = FC_RCTL_ELS_REP;
9159 pring->prt[1].type = FC_TYPE_ELS;
9160 pring->prt[1].lpfc_sli_rcv_unsol_event =
9161 lpfc_els_unsol_event;
9162 pring->prt[2].profile = 0; /* Mask 2 */
9163 /* NameServer Inquiry */
9164 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
9166 pring->prt[2].type = FC_TYPE_CT;
9167 pring->prt[2].lpfc_sli_rcv_unsol_event =
9168 lpfc_ct_unsol_event;
9169 pring->prt[3].profile = 0; /* Mask 3 */
9170 /* NameServer response */
9171 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
9173 pring->prt[3].type = FC_TYPE_CT;
9174 pring->prt[3].lpfc_sli_rcv_unsol_event =
9175 lpfc_ct_unsol_event;
9178 totiocbsize += (pring->sli.sli3.numCiocb *
9179 pring->sli.sli3.sizeCiocb) +
9180 (pring->sli.sli3.numRiocb * pring->sli.sli3.sizeRiocb);
9182 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
9183 /* Too many cmd / rsp ring entries in SLI2 SLIM */
9184 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
9185 "SLI2 SLIM Data: x%x x%lx\n",
9186 phba->brd_no, totiocbsize,
9187 (unsigned long) MAX_SLIM_IOCB_SIZE);
9189 if (phba->cfg_multi_ring_support == 2)
9190 lpfc_extra_ring_setup(phba);
9196 * lpfc_sli_queue_setup - Queue initialization function
9197 * @phba: Pointer to HBA context object.
9199 * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each
9200 * ring. This function also initializes ring indices of each ring.
9201 * This function is called during the initialization of the SLI
9202 * interface of an HBA.
9203 * This function is called with no lock held and always returns
9207 lpfc_sli_queue_setup(struct lpfc_hba *phba)
9209 struct lpfc_sli *psli;
9210 struct lpfc_sli_ring *pring;
9214 spin_lock_irq(&phba->hbalock);
9215 INIT_LIST_HEAD(&psli->mboxq);
9216 INIT_LIST_HEAD(&psli->mboxq_cmpl);
9217 /* Initialize list headers for txq and txcmplq as double linked lists */
9218 for (i = 0; i < psli->num_rings; i++) {
9219 pring = &psli->ring[i];
9221 pring->sli.sli3.next_cmdidx = 0;
9222 pring->sli.sli3.local_getidx = 0;
9223 pring->sli.sli3.cmdidx = 0;
9225 INIT_LIST_HEAD(&pring->txq);
9226 INIT_LIST_HEAD(&pring->txcmplq);
9227 INIT_LIST_HEAD(&pring->iocb_continueq);
9228 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
9229 INIT_LIST_HEAD(&pring->postbufq);
9230 spin_lock_init(&pring->ring_lock);
9232 spin_unlock_irq(&phba->hbalock);
9237 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
9238 * @phba: Pointer to HBA context object.
9240 * This routine flushes the mailbox command subsystem. It will unconditionally
9241 * flush all the mailbox commands in the three possible stages in the mailbox
9242 * command sub-system: pending mailbox command queue; the outstanding mailbox
9243 * command; and completed mailbox command queue. It is caller's responsibility
9244 * to make sure that the driver is in the proper state to flush the mailbox
9245 * command sub-system. Namely, the posting of mailbox commands into the
9246 * pending mailbox command queue from the various clients must be stopped;
9247 * either the HBA is in a state that it will never works on the outstanding
9248 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
9249 * mailbox command has been completed.
9252 lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
9254 LIST_HEAD(completions);
9255 struct lpfc_sli *psli = &phba->sli;
9257 unsigned long iflag;
9259 /* Flush all the mailbox commands in the mbox system */
9260 spin_lock_irqsave(&phba->hbalock, iflag);
9261 /* The pending mailbox command queue */
9262 list_splice_init(&phba->sli.mboxq, &completions);
9263 /* The outstanding active mailbox command */
9264 if (psli->mbox_active) {
9265 list_add_tail(&psli->mbox_active->list, &completions);
9266 psli->mbox_active = NULL;
9267 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9269 /* The completed mailbox command queue */
9270 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
9271 spin_unlock_irqrestore(&phba->hbalock, iflag);
9273 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
9274 while (!list_empty(&completions)) {
9275 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
9276 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
9278 pmb->mbox_cmpl(phba, pmb);
9283 * lpfc_sli_host_down - Vport cleanup function
9284 * @vport: Pointer to virtual port object.
9286 * lpfc_sli_host_down is called to clean up the resources
9287 * associated with a vport before destroying virtual
9288 * port data structures.
9289 * This function does following operations:
9290 * - Free discovery resources associated with this virtual
9292 * - Free iocbs associated with this virtual port in
9294 * - Send abort for all iocb commands associated with this
9297 * This function is called with no lock held and always returns 1.
9300 lpfc_sli_host_down(struct lpfc_vport *vport)
9302 LIST_HEAD(completions);
9303 struct lpfc_hba *phba = vport->phba;
9304 struct lpfc_sli *psli = &phba->sli;
9305 struct lpfc_sli_ring *pring;
9306 struct lpfc_iocbq *iocb, *next_iocb;
9308 unsigned long flags = 0;
9309 uint16_t prev_pring_flag;
9311 lpfc_cleanup_discovery_resources(vport);
9313 spin_lock_irqsave(&phba->hbalock, flags);
9314 for (i = 0; i < psli->num_rings; i++) {
9315 pring = &psli->ring[i];
9316 prev_pring_flag = pring->flag;
9317 /* Only slow rings */
9318 if (pring->ringno == LPFC_ELS_RING) {
9319 pring->flag |= LPFC_DEFERRED_RING_EVENT;
9320 /* Set the lpfc data pending flag */
9321 set_bit(LPFC_DATA_READY, &phba->data_flags);
9324 * Error everything on the txq since these iocbs have not been
9325 * given to the FW yet.
9327 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
9328 if (iocb->vport != vport)
9330 list_move_tail(&iocb->list, &completions);
9333 /* Next issue ABTS for everything on the txcmplq */
9334 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq,
9336 if (iocb->vport != vport)
9338 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
9341 pring->flag = prev_pring_flag;
9344 spin_unlock_irqrestore(&phba->hbalock, flags);
9346 /* Cancel all the IOCBs from the completions list */
9347 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9353 * lpfc_sli_hba_down - Resource cleanup function for the HBA
9354 * @phba: Pointer to HBA context object.
9356 * This function cleans up all iocb, buffers, mailbox commands
9357 * while shutting down the HBA. This function is called with no
9358 * lock held and always returns 1.
9359 * This function does the following to cleanup driver resources:
9360 * - Free discovery resources for each virtual port
9361 * - Cleanup any pending fabric iocbs
9362 * - Iterate through the iocb txq and free each entry
9364 * - Free up any buffer posted to the HBA
9365 * - Free mailbox commands in the mailbox queue.
9368 lpfc_sli_hba_down(struct lpfc_hba *phba)
9370 LIST_HEAD(completions);
9371 struct lpfc_sli *psli = &phba->sli;
9372 struct lpfc_sli_ring *pring;
9373 struct lpfc_dmabuf *buf_ptr;
9374 unsigned long flags = 0;
9377 /* Shutdown the mailbox command sub-system */
9378 lpfc_sli_mbox_sys_shutdown(phba, LPFC_MBX_WAIT);
9380 lpfc_hba_down_prep(phba);
9382 lpfc_fabric_abort_hba(phba);
9384 spin_lock_irqsave(&phba->hbalock, flags);
9385 for (i = 0; i < psli->num_rings; i++) {
9386 pring = &psli->ring[i];
9387 /* Only slow rings */
9388 if (pring->ringno == LPFC_ELS_RING) {
9389 pring->flag |= LPFC_DEFERRED_RING_EVENT;
9390 /* Set the lpfc data pending flag */
9391 set_bit(LPFC_DATA_READY, &phba->data_flags);
9395 * Error everything on the txq since these iocbs have not been
9396 * given to the FW yet.
9398 list_splice_init(&pring->txq, &completions);
9400 spin_unlock_irqrestore(&phba->hbalock, flags);
9402 /* Cancel all the IOCBs from the completions list */
9403 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9406 spin_lock_irqsave(&phba->hbalock, flags);
9407 list_splice_init(&phba->elsbuf, &completions);
9408 phba->elsbuf_cnt = 0;
9409 phba->elsbuf_prev_cnt = 0;
9410 spin_unlock_irqrestore(&phba->hbalock, flags);
9412 while (!list_empty(&completions)) {
9413 list_remove_head(&completions, buf_ptr,
9414 struct lpfc_dmabuf, list);
9415 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
9419 /* Return any active mbox cmds */
9420 del_timer_sync(&psli->mbox_tmo);
9422 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
9423 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
9424 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
9430 * lpfc_sli_pcimem_bcopy - SLI memory copy function
9431 * @srcp: Source memory pointer.
9432 * @destp: Destination memory pointer.
9433 * @cnt: Number of words required to be copied.
9435 * This function is used for copying data between driver memory
9436 * and the SLI memory. This function also changes the endianness
9437 * of each word if native endianness is different from SLI
9438 * endianness. This function can be called with or without
9442 lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
9444 uint32_t *src = srcp;
9445 uint32_t *dest = destp;
9449 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
9451 ldata = le32_to_cpu(ldata);
9460 * lpfc_sli_bemem_bcopy - SLI memory copy function
9461 * @srcp: Source memory pointer.
9462 * @destp: Destination memory pointer.
9463 * @cnt: Number of words required to be copied.
9465 * This function is used for copying data between a data structure
9466 * with big endian representation to local endianness.
9467 * This function can be called with or without lock.
9470 lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
9472 uint32_t *src = srcp;
9473 uint32_t *dest = destp;
9477 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
9479 ldata = be32_to_cpu(ldata);
9487 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
9488 * @phba: Pointer to HBA context object.
9489 * @pring: Pointer to driver SLI ring object.
9490 * @mp: Pointer to driver buffer object.
9492 * This function is called with no lock held.
9493 * It always return zero after adding the buffer to the postbufq
9497 lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9498 struct lpfc_dmabuf *mp)
9500 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
9502 spin_lock_irq(&phba->hbalock);
9503 list_add_tail(&mp->list, &pring->postbufq);
9504 pring->postbufq_cnt++;
9505 spin_unlock_irq(&phba->hbalock);
9510 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
9511 * @phba: Pointer to HBA context object.
9513 * When HBQ is enabled, buffers are searched based on tags. This function
9514 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
9515 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
9516 * does not conflict with tags of buffer posted for unsolicited events.
9517 * The function returns the allocated tag. The function is called with
9521 lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
9523 spin_lock_irq(&phba->hbalock);
9524 phba->buffer_tag_count++;
9526 * Always set the QUE_BUFTAG_BIT to distiguish between
9527 * a tag assigned by HBQ.
9529 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
9530 spin_unlock_irq(&phba->hbalock);
9531 return phba->buffer_tag_count;
9535 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
9536 * @phba: Pointer to HBA context object.
9537 * @pring: Pointer to driver SLI ring object.
9540 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
9541 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
9542 * iocb is posted to the response ring with the tag of the buffer.
9543 * This function searches the pring->postbufq list using the tag
9544 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
9545 * iocb. If the buffer is found then lpfc_dmabuf object of the
9546 * buffer is returned to the caller else NULL is returned.
9547 * This function is called with no lock held.
9549 struct lpfc_dmabuf *
9550 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9553 struct lpfc_dmabuf *mp, *next_mp;
9554 struct list_head *slp = &pring->postbufq;
9556 /* Search postbufq, from the beginning, looking for a match on tag */
9557 spin_lock_irq(&phba->hbalock);
9558 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
9559 if (mp->buffer_tag == tag) {
9560 list_del_init(&mp->list);
9561 pring->postbufq_cnt--;
9562 spin_unlock_irq(&phba->hbalock);
9567 spin_unlock_irq(&phba->hbalock);
9568 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9569 "0402 Cannot find virtual addr for buffer tag on "
9570 "ring %d Data x%lx x%p x%p x%x\n",
9571 pring->ringno, (unsigned long) tag,
9572 slp->next, slp->prev, pring->postbufq_cnt);
9578 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
9579 * @phba: Pointer to HBA context object.
9580 * @pring: Pointer to driver SLI ring object.
9581 * @phys: DMA address of the buffer.
9583 * This function searches the buffer list using the dma_address
9584 * of unsolicited event to find the driver's lpfc_dmabuf object
9585 * corresponding to the dma_address. The function returns the
9586 * lpfc_dmabuf object if a buffer is found else it returns NULL.
9587 * This function is called by the ct and els unsolicited event
9588 * handlers to get the buffer associated with the unsolicited
9591 * This function is called with no lock held.
9593 struct lpfc_dmabuf *
9594 lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9597 struct lpfc_dmabuf *mp, *next_mp;
9598 struct list_head *slp = &pring->postbufq;
9600 /* Search postbufq, from the beginning, looking for a match on phys */
9601 spin_lock_irq(&phba->hbalock);
9602 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
9603 if (mp->phys == phys) {
9604 list_del_init(&mp->list);
9605 pring->postbufq_cnt--;
9606 spin_unlock_irq(&phba->hbalock);
9611 spin_unlock_irq(&phba->hbalock);
9612 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9613 "0410 Cannot find virtual addr for mapped buf on "
9614 "ring %d Data x%llx x%p x%p x%x\n",
9615 pring->ringno, (unsigned long long)phys,
9616 slp->next, slp->prev, pring->postbufq_cnt);
9621 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
9622 * @phba: Pointer to HBA context object.
9623 * @cmdiocb: Pointer to driver command iocb object.
9624 * @rspiocb: Pointer to driver response iocb object.
9626 * This function is the completion handler for the abort iocbs for
9627 * ELS commands. This function is called from the ELS ring event
9628 * handler with no lock held. This function frees memory resources
9629 * associated with the abort iocb.
9632 lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9633 struct lpfc_iocbq *rspiocb)
9635 IOCB_t *irsp = &rspiocb->iocb;
9636 uint16_t abort_iotag, abort_context;
9637 struct lpfc_iocbq *abort_iocb = NULL;
9639 if (irsp->ulpStatus) {
9642 * Assume that the port already completed and returned, or
9643 * will return the iocb. Just Log the message.
9645 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
9646 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
9648 spin_lock_irq(&phba->hbalock);
9649 if (phba->sli_rev < LPFC_SLI_REV4) {
9650 if (abort_iotag != 0 &&
9651 abort_iotag <= phba->sli.last_iotag)
9653 phba->sli.iocbq_lookup[abort_iotag];
9655 /* For sli4 the abort_tag is the XRI,
9656 * so the abort routine puts the iotag of the iocb
9657 * being aborted in the context field of the abort
9660 abort_iocb = phba->sli.iocbq_lookup[abort_context];
9662 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI,
9663 "0327 Cannot abort els iocb %p "
9664 "with tag %x context %x, abort status %x, "
9666 abort_iocb, abort_iotag, abort_context,
9667 irsp->ulpStatus, irsp->un.ulpWord[4]);
9669 spin_unlock_irq(&phba->hbalock);
9671 lpfc_sli_release_iocbq(phba, cmdiocb);
9676 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
9677 * @phba: Pointer to HBA context object.
9678 * @cmdiocb: Pointer to driver command iocb object.
9679 * @rspiocb: Pointer to driver response iocb object.
9681 * The function is called from SLI ring event handler with no
9682 * lock held. This function is the completion handler for ELS commands
9683 * which are aborted. The function frees memory resources used for
9684 * the aborted ELS commands.
9687 lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9688 struct lpfc_iocbq *rspiocb)
9690 IOCB_t *irsp = &rspiocb->iocb;
9692 /* ELS cmd tag <ulpIoTag> completes */
9693 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
9694 "0139 Ignoring ELS cmd tag x%x completion Data: "
9696 irsp->ulpIoTag, irsp->ulpStatus,
9697 irsp->un.ulpWord[4], irsp->ulpTimeout);
9698 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
9699 lpfc_ct_free_iocb(phba, cmdiocb);
9701 lpfc_els_free_iocb(phba, cmdiocb);
9706 * lpfc_sli_abort_iotag_issue - Issue abort for a command iocb
9707 * @phba: Pointer to HBA context object.
9708 * @pring: Pointer to driver SLI ring object.
9709 * @cmdiocb: Pointer to driver command iocb object.
9711 * This function issues an abort iocb for the provided command iocb down to
9712 * the port. Other than the case the outstanding command iocb is an abort
9713 * request, this function issues abort out unconditionally. This function is
9714 * called with hbalock held. The function returns 0 when it fails due to
9715 * memory allocation failure or when the command iocb is an abort request.
9718 lpfc_sli_abort_iotag_issue(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9719 struct lpfc_iocbq *cmdiocb)
9721 struct lpfc_vport *vport = cmdiocb->vport;
9722 struct lpfc_iocbq *abtsiocbp;
9723 IOCB_t *icmd = NULL;
9724 IOCB_t *iabt = NULL;
9727 unsigned long iflags;
9730 * There are certain command types we don't want to abort. And we
9731 * don't want to abort commands that are already in the process of
9734 icmd = &cmdiocb->iocb;
9735 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
9736 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
9737 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
9740 /* issue ABTS for this IOCB based on iotag */
9741 abtsiocbp = __lpfc_sli_get_iocbq(phba);
9742 if (abtsiocbp == NULL)
9745 /* This signals the response to set the correct status
9746 * before calling the completion handler
9748 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
9750 iabt = &abtsiocbp->iocb;
9751 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
9752 iabt->un.acxri.abortContextTag = icmd->ulpContext;
9753 if (phba->sli_rev == LPFC_SLI_REV4) {
9754 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
9755 iabt->un.acxri.abortContextTag = cmdiocb->iotag;
9758 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
9760 iabt->ulpClass = icmd->ulpClass;
9762 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
9763 abtsiocbp->fcp_wqidx = cmdiocb->fcp_wqidx;
9764 if (cmdiocb->iocb_flag & LPFC_IO_FCP)
9765 abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
9766 if (cmdiocb->iocb_flag & LPFC_IO_FOF)
9767 abtsiocbp->iocb_flag |= LPFC_IO_FOF;
9769 if (phba->link_state >= LPFC_LINK_UP)
9770 iabt->ulpCommand = CMD_ABORT_XRI_CN;
9772 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
9774 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
9776 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
9777 "0339 Abort xri x%x, original iotag x%x, "
9778 "abort cmd iotag x%x\n",
9779 iabt->un.acxri.abortIoTag,
9780 iabt->un.acxri.abortContextTag,
9783 if (phba->sli_rev == LPFC_SLI_REV4) {
9785 lpfc_sli_calc_ring(phba, pring->ringno, abtsiocbp);
9786 if (unlikely(ring_number == LPFC_HBA_ERROR))
9788 pring = &phba->sli.ring[ring_number];
9789 /* Note: both hbalock and ring_lock need to be set here */
9790 spin_lock_irqsave(&pring->ring_lock, iflags);
9791 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
9793 spin_unlock_irqrestore(&pring->ring_lock, iflags);
9795 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
9800 __lpfc_sli_release_iocbq(phba, abtsiocbp);
9803 * Caller to this routine should check for IOCB_ERROR
9804 * and handle it properly. This routine no longer removes
9805 * iocb off txcmplq and call compl in case of IOCB_ERROR.
9811 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
9812 * @phba: Pointer to HBA context object.
9813 * @pring: Pointer to driver SLI ring object.
9814 * @cmdiocb: Pointer to driver command iocb object.
9816 * This function issues an abort iocb for the provided command iocb. In case
9817 * of unloading, the abort iocb will not be issued to commands on the ELS
9818 * ring. Instead, the callback function shall be changed to those commands
9819 * so that nothing happens when them finishes. This function is called with
9820 * hbalock held. The function returns 0 when the command iocb is an abort
9824 lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9825 struct lpfc_iocbq *cmdiocb)
9827 struct lpfc_vport *vport = cmdiocb->vport;
9828 int retval = IOCB_ERROR;
9829 IOCB_t *icmd = NULL;
9832 * There are certain command types we don't want to abort. And we
9833 * don't want to abort commands that are already in the process of
9836 icmd = &cmdiocb->iocb;
9837 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
9838 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
9839 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
9843 * If we're unloading, don't abort iocb on the ELS ring, but change
9844 * the callback so that nothing happens when it finishes.
9846 if ((vport->load_flag & FC_UNLOADING) &&
9847 (pring->ringno == LPFC_ELS_RING)) {
9848 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
9849 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
9851 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
9852 goto abort_iotag_exit;
9855 /* Now, we try to issue the abort to the cmdiocb out */
9856 retval = lpfc_sli_abort_iotag_issue(phba, pring, cmdiocb);
9860 * Caller to this routine should check for IOCB_ERROR
9861 * and handle it properly. This routine no longer removes
9862 * iocb off txcmplq and call compl in case of IOCB_ERROR.
9868 * lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
9869 * @phba: pointer to lpfc HBA data structure.
9871 * This routine will abort all pending and outstanding iocbs to an HBA.
9874 lpfc_sli_hba_iocb_abort(struct lpfc_hba *phba)
9876 struct lpfc_sli *psli = &phba->sli;
9877 struct lpfc_sli_ring *pring;
9880 for (i = 0; i < psli->num_rings; i++) {
9881 pring = &psli->ring[i];
9882 lpfc_sli_abort_iocb_ring(phba, pring);
9887 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
9888 * @iocbq: Pointer to driver iocb object.
9889 * @vport: Pointer to driver virtual port object.
9890 * @tgt_id: SCSI ID of the target.
9891 * @lun_id: LUN ID of the scsi device.
9892 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
9894 * This function acts as an iocb filter for functions which abort or count
9895 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
9896 * 0 if the filtering criteria is met for the given iocb and will return
9897 * 1 if the filtering criteria is not met.
9898 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
9899 * given iocb is for the SCSI device specified by vport, tgt_id and
9901 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
9902 * given iocb is for the SCSI target specified by vport and tgt_id
9904 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
9905 * given iocb is for the SCSI host associated with the given vport.
9906 * This function is called with no locks held.
9909 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
9910 uint16_t tgt_id, uint64_t lun_id,
9911 lpfc_ctx_cmd ctx_cmd)
9913 struct lpfc_scsi_buf *lpfc_cmd;
9916 if (!(iocbq->iocb_flag & LPFC_IO_FCP))
9919 if (iocbq->vport != vport)
9922 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
9924 if (lpfc_cmd->pCmd == NULL)
9929 if ((lpfc_cmd->rdata->pnode) &&
9930 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
9931 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
9935 if ((lpfc_cmd->rdata->pnode) &&
9936 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
9943 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
9952 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
9953 * @vport: Pointer to virtual port.
9954 * @tgt_id: SCSI ID of the target.
9955 * @lun_id: LUN ID of the scsi device.
9956 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
9958 * This function returns number of FCP commands pending for the vport.
9959 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
9960 * commands pending on the vport associated with SCSI device specified
9961 * by tgt_id and lun_id parameters.
9962 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
9963 * commands pending on the vport associated with SCSI target specified
9964 * by tgt_id parameter.
9965 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
9966 * commands pending on the vport.
9967 * This function returns the number of iocbs which satisfy the filter.
9968 * This function is called without any lock held.
9971 lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
9972 lpfc_ctx_cmd ctx_cmd)
9974 struct lpfc_hba *phba = vport->phba;
9975 struct lpfc_iocbq *iocbq;
9978 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
9979 iocbq = phba->sli.iocbq_lookup[i];
9981 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
9990 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
9991 * @phba: Pointer to HBA context object
9992 * @cmdiocb: Pointer to command iocb object.
9993 * @rspiocb: Pointer to response iocb object.
9995 * This function is called when an aborted FCP iocb completes. This
9996 * function is called by the ring event handler with no lock held.
9997 * This function frees the iocb.
10000 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
10001 struct lpfc_iocbq *rspiocb)
10003 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10004 "3096 ABORT_XRI_CN completing on rpi x%x "
10005 "original iotag x%x, abort cmd iotag x%x "
10006 "status 0x%x, reason 0x%x\n",
10007 cmdiocb->iocb.un.acxri.abortContextTag,
10008 cmdiocb->iocb.un.acxri.abortIoTag,
10009 cmdiocb->iotag, rspiocb->iocb.ulpStatus,
10010 rspiocb->iocb.un.ulpWord[4]);
10011 lpfc_sli_release_iocbq(phba, cmdiocb);
10016 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
10017 * @vport: Pointer to virtual port.
10018 * @pring: Pointer to driver SLI ring object.
10019 * @tgt_id: SCSI ID of the target.
10020 * @lun_id: LUN ID of the scsi device.
10021 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
10023 * This function sends an abort command for every SCSI command
10024 * associated with the given virtual port pending on the ring
10025 * filtered by lpfc_sli_validate_fcp_iocb function.
10026 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
10027 * FCP iocbs associated with lun specified by tgt_id and lun_id
10029 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
10030 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
10031 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
10032 * FCP iocbs associated with virtual port.
10033 * This function returns number of iocbs it failed to abort.
10034 * This function is called with no locks held.
10037 lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
10038 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
10040 struct lpfc_hba *phba = vport->phba;
10041 struct lpfc_iocbq *iocbq;
10042 struct lpfc_iocbq *abtsiocb;
10043 IOCB_t *cmd = NULL;
10044 int errcnt = 0, ret_val = 0;
10047 for (i = 1; 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,
10055 * If the iocbq is already being aborted, don't take a second
10056 * action, but do count it.
10058 if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
10061 /* issue ABTS for this IOCB based on iotag */
10062 abtsiocb = lpfc_sli_get_iocbq(phba);
10063 if (abtsiocb == NULL) {
10068 /* indicate the IO is being aborted by the driver. */
10069 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
10071 cmd = &iocbq->iocb;
10072 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
10073 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
10074 if (phba->sli_rev == LPFC_SLI_REV4)
10075 abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
10077 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
10078 abtsiocb->iocb.ulpLe = 1;
10079 abtsiocb->iocb.ulpClass = cmd->ulpClass;
10080 abtsiocb->vport = vport;
10082 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
10083 abtsiocb->fcp_wqidx = iocbq->fcp_wqidx;
10084 if (iocbq->iocb_flag & LPFC_IO_FCP)
10085 abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
10086 if (iocbq->iocb_flag & LPFC_IO_FOF)
10087 abtsiocb->iocb_flag |= LPFC_IO_FOF;
10089 if (lpfc_is_link_up(phba))
10090 abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
10092 abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
10094 /* Setup callback routine and issue the command. */
10095 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
10096 ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
10098 if (ret_val == IOCB_ERROR) {
10099 lpfc_sli_release_iocbq(phba, abtsiocb);
10109 * lpfc_sli_abort_taskmgmt - issue abort for all commands on a host/target/LUN
10110 * @vport: Pointer to virtual port.
10111 * @pring: Pointer to driver SLI ring object.
10112 * @tgt_id: SCSI ID of the target.
10113 * @lun_id: LUN ID of the scsi device.
10114 * @taskmgmt_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
10116 * This function sends an abort command for every SCSI command
10117 * associated with the given virtual port pending on the ring
10118 * filtered by lpfc_sli_validate_fcp_iocb function.
10119 * When taskmgmt_cmd == LPFC_CTX_LUN, the function sends abort only to the
10120 * FCP iocbs associated with lun specified by tgt_id and lun_id
10122 * When taskmgmt_cmd == LPFC_CTX_TGT, the function sends abort only to the
10123 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
10124 * When taskmgmt_cmd == LPFC_CTX_HOST, the function sends abort to all
10125 * FCP iocbs associated with virtual port.
10126 * This function returns number of iocbs it aborted .
10127 * This function is called with no locks held right after a taskmgmt
10131 lpfc_sli_abort_taskmgmt(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
10132 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd cmd)
10134 struct lpfc_hba *phba = vport->phba;
10135 struct lpfc_scsi_buf *lpfc_cmd;
10136 struct lpfc_iocbq *abtsiocbq;
10137 struct lpfc_nodelist *ndlp;
10138 struct lpfc_iocbq *iocbq;
10140 int sum, i, ret_val;
10141 unsigned long iflags;
10142 struct lpfc_sli_ring *pring_s4;
10143 uint32_t ring_number;
10145 spin_lock_irq(&phba->hbalock);
10147 /* all I/Os are in process of being flushed */
10148 if (phba->hba_flag & HBA_FCP_IOQ_FLUSH) {
10149 spin_unlock_irq(&phba->hbalock);
10154 for (i = 1; i <= phba->sli.last_iotag; i++) {
10155 iocbq = phba->sli.iocbq_lookup[i];
10157 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
10162 * If the iocbq is already being aborted, don't take a second
10163 * action, but do count it.
10165 if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
10168 /* issue ABTS for this IOCB based on iotag */
10169 abtsiocbq = __lpfc_sli_get_iocbq(phba);
10170 if (abtsiocbq == NULL)
10173 icmd = &iocbq->iocb;
10174 abtsiocbq->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
10175 abtsiocbq->iocb.un.acxri.abortContextTag = icmd->ulpContext;
10176 if (phba->sli_rev == LPFC_SLI_REV4)
10177 abtsiocbq->iocb.un.acxri.abortIoTag =
10178 iocbq->sli4_xritag;
10180 abtsiocbq->iocb.un.acxri.abortIoTag = icmd->ulpIoTag;
10181 abtsiocbq->iocb.ulpLe = 1;
10182 abtsiocbq->iocb.ulpClass = icmd->ulpClass;
10183 abtsiocbq->vport = vport;
10185 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
10186 abtsiocbq->fcp_wqidx = iocbq->fcp_wqidx;
10187 if (iocbq->iocb_flag & LPFC_IO_FCP)
10188 abtsiocbq->iocb_flag |= LPFC_USE_FCPWQIDX;
10189 if (iocbq->iocb_flag & LPFC_IO_FOF)
10190 abtsiocbq->iocb_flag |= LPFC_IO_FOF;
10192 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
10193 ndlp = lpfc_cmd->rdata->pnode;
10195 if (lpfc_is_link_up(phba) &&
10196 (ndlp && ndlp->nlp_state == NLP_STE_MAPPED_NODE))
10197 abtsiocbq->iocb.ulpCommand = CMD_ABORT_XRI_CN;
10199 abtsiocbq->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
10201 /* Setup callback routine and issue the command. */
10202 abtsiocbq->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
10205 * Indicate the IO is being aborted by the driver and set
10206 * the caller's flag into the aborted IO.
10208 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
10210 if (phba->sli_rev == LPFC_SLI_REV4) {
10211 ring_number = MAX_SLI3_CONFIGURED_RINGS +
10213 pring_s4 = &phba->sli.ring[ring_number];
10214 /* Note: both hbalock and ring_lock must be set here */
10215 spin_lock_irqsave(&pring_s4->ring_lock, iflags);
10216 ret_val = __lpfc_sli_issue_iocb(phba, pring_s4->ringno,
10218 spin_unlock_irqrestore(&pring_s4->ring_lock, iflags);
10220 ret_val = __lpfc_sli_issue_iocb(phba, pring->ringno,
10225 if (ret_val == IOCB_ERROR)
10226 __lpfc_sli_release_iocbq(phba, abtsiocbq);
10230 spin_unlock_irq(&phba->hbalock);
10235 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
10236 * @phba: Pointer to HBA context object.
10237 * @cmdiocbq: Pointer to command iocb.
10238 * @rspiocbq: Pointer to response iocb.
10240 * This function is the completion handler for iocbs issued using
10241 * lpfc_sli_issue_iocb_wait function. This function is called by the
10242 * ring event handler function without any lock held. This function
10243 * can be called from both worker thread context and interrupt
10244 * context. This function also can be called from other thread which
10245 * cleans up the SLI layer objects.
10246 * This function copy the contents of the response iocb to the
10247 * response iocb memory object provided by the caller of
10248 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
10249 * sleeps for the iocb completion.
10252 lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
10253 struct lpfc_iocbq *cmdiocbq,
10254 struct lpfc_iocbq *rspiocbq)
10256 wait_queue_head_t *pdone_q;
10257 unsigned long iflags;
10258 struct lpfc_scsi_buf *lpfc_cmd;
10260 spin_lock_irqsave(&phba->hbalock, iflags);
10261 if (cmdiocbq->iocb_flag & LPFC_IO_WAKE_TMO) {
10264 * A time out has occurred for the iocb. If a time out
10265 * completion handler has been supplied, call it. Otherwise,
10266 * just free the iocbq.
10269 spin_unlock_irqrestore(&phba->hbalock, iflags);
10270 cmdiocbq->iocb_cmpl = cmdiocbq->wait_iocb_cmpl;
10271 cmdiocbq->wait_iocb_cmpl = NULL;
10272 if (cmdiocbq->iocb_cmpl)
10273 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, NULL);
10275 lpfc_sli_release_iocbq(phba, cmdiocbq);
10279 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
10280 if (cmdiocbq->context2 && rspiocbq)
10281 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
10282 &rspiocbq->iocb, sizeof(IOCB_t));
10284 /* Set the exchange busy flag for task management commands */
10285 if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) &&
10286 !(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) {
10287 lpfc_cmd = container_of(cmdiocbq, struct lpfc_scsi_buf,
10289 lpfc_cmd->exch_busy = rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY;
10292 pdone_q = cmdiocbq->context_un.wait_queue;
10295 spin_unlock_irqrestore(&phba->hbalock, iflags);
10300 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
10301 * @phba: Pointer to HBA context object..
10302 * @piocbq: Pointer to command iocb.
10303 * @flag: Flag to test.
10305 * This routine grabs the hbalock and then test the iocb_flag to
10306 * see if the passed in flag is set.
10308 * 1 if flag is set.
10309 * 0 if flag is not set.
10312 lpfc_chk_iocb_flg(struct lpfc_hba *phba,
10313 struct lpfc_iocbq *piocbq, uint32_t flag)
10315 unsigned long iflags;
10318 spin_lock_irqsave(&phba->hbalock, iflags);
10319 ret = piocbq->iocb_flag & flag;
10320 spin_unlock_irqrestore(&phba->hbalock, iflags);
10326 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
10327 * @phba: Pointer to HBA context object..
10328 * @pring: Pointer to sli ring.
10329 * @piocb: Pointer to command iocb.
10330 * @prspiocbq: Pointer to response iocb.
10331 * @timeout: Timeout in number of seconds.
10333 * This function issues the iocb to firmware and waits for the
10334 * iocb to complete. The iocb_cmpl field of the shall be used
10335 * to handle iocbs which time out. If the field is NULL, the
10336 * function shall free the iocbq structure. If more clean up is
10337 * needed, the caller is expected to provide a completion function
10338 * that will provide the needed clean up. If the iocb command is
10339 * not completed within timeout seconds, the function will either
10340 * free the iocbq structure (if iocb_cmpl == NULL) or execute the
10341 * completion function set in the iocb_cmpl field and then return
10342 * a status of IOCB_TIMEDOUT. The caller should not free the iocb
10343 * resources if this function returns IOCB_TIMEDOUT.
10344 * The function waits for the iocb completion using an
10345 * non-interruptible wait.
10346 * This function will sleep while waiting for iocb completion.
10347 * So, this function should not be called from any context which
10348 * does not allow sleeping. Due to the same reason, this function
10349 * cannot be called with interrupt disabled.
10350 * This function assumes that the iocb completions occur while
10351 * this function sleep. So, this function cannot be called from
10352 * the thread which process iocb completion for this ring.
10353 * This function clears the iocb_flag of the iocb object before
10354 * issuing the iocb and the iocb completion handler sets this
10355 * flag and wakes this thread when the iocb completes.
10356 * The contents of the response iocb will be copied to prspiocbq
10357 * by the completion handler when the command completes.
10358 * This function returns IOCB_SUCCESS when success.
10359 * This function is called with no lock held.
10362 lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
10363 uint32_t ring_number,
10364 struct lpfc_iocbq *piocb,
10365 struct lpfc_iocbq *prspiocbq,
10368 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
10369 long timeleft, timeout_req = 0;
10370 int retval = IOCB_SUCCESS;
10372 struct lpfc_iocbq *iocb;
10374 int txcmplq_cnt = 0;
10375 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
10376 unsigned long iflags;
10377 bool iocb_completed = true;
10380 * If the caller has provided a response iocbq buffer, then context2
10381 * is NULL or its an error.
10384 if (piocb->context2)
10386 piocb->context2 = prspiocbq;
10389 piocb->wait_iocb_cmpl = piocb->iocb_cmpl;
10390 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
10391 piocb->context_un.wait_queue = &done_q;
10392 piocb->iocb_flag &= ~(LPFC_IO_WAKE | LPFC_IO_WAKE_TMO);
10394 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
10395 if (lpfc_readl(phba->HCregaddr, &creg_val))
10397 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
10398 writel(creg_val, phba->HCregaddr);
10399 readl(phba->HCregaddr); /* flush */
10402 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb,
10403 SLI_IOCB_RET_IOCB);
10404 if (retval == IOCB_SUCCESS) {
10405 timeout_req = msecs_to_jiffies(timeout * 1000);
10406 timeleft = wait_event_timeout(done_q,
10407 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
10409 spin_lock_irqsave(&phba->hbalock, iflags);
10410 if (!(piocb->iocb_flag & LPFC_IO_WAKE)) {
10413 * IOCB timed out. Inform the wake iocb wait
10414 * completion function and set local status
10417 iocb_completed = false;
10418 piocb->iocb_flag |= LPFC_IO_WAKE_TMO;
10420 spin_unlock_irqrestore(&phba->hbalock, iflags);
10421 if (iocb_completed) {
10422 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10423 "0331 IOCB wake signaled\n");
10424 /* Note: we are not indicating if the IOCB has a success
10425 * status or not - that's for the caller to check.
10426 * IOCB_SUCCESS means just that the command was sent and
10427 * completed. Not that it completed successfully.
10429 } else if (timeleft == 0) {
10430 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10431 "0338 IOCB wait timeout error - no "
10432 "wake response Data x%x\n", timeout);
10433 retval = IOCB_TIMEDOUT;
10435 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10436 "0330 IOCB wake NOT set, "
10438 timeout, (timeleft / jiffies));
10439 retval = IOCB_TIMEDOUT;
10441 } else if (retval == IOCB_BUSY) {
10442 if (phba->cfg_log_verbose & LOG_SLI) {
10443 list_for_each_entry(iocb, &pring->txq, list) {
10446 list_for_each_entry(iocb, &pring->txcmplq, list) {
10449 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10450 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
10451 phba->iocb_cnt, txq_cnt, txcmplq_cnt);
10455 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10456 "0332 IOCB wait issue failed, Data x%x\n",
10458 retval = IOCB_ERROR;
10461 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
10462 if (lpfc_readl(phba->HCregaddr, &creg_val))
10464 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
10465 writel(creg_val, phba->HCregaddr);
10466 readl(phba->HCregaddr); /* flush */
10470 piocb->context2 = NULL;
10472 piocb->context_un.wait_queue = NULL;
10473 piocb->iocb_cmpl = NULL;
10478 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
10479 * @phba: Pointer to HBA context object.
10480 * @pmboxq: Pointer to driver mailbox object.
10481 * @timeout: Timeout in number of seconds.
10483 * This function issues the mailbox to firmware and waits for the
10484 * mailbox command to complete. If the mailbox command is not
10485 * completed within timeout seconds, it returns MBX_TIMEOUT.
10486 * The function waits for the mailbox completion using an
10487 * interruptible wait. If the thread is woken up due to a
10488 * signal, MBX_TIMEOUT error is returned to the caller. Caller
10489 * should not free the mailbox resources, if this function returns
10491 * This function will sleep while waiting for mailbox completion.
10492 * So, this function should not be called from any context which
10493 * does not allow sleeping. Due to the same reason, this function
10494 * cannot be called with interrupt disabled.
10495 * This function assumes that the mailbox completion occurs while
10496 * this function sleep. So, this function cannot be called from
10497 * the worker thread which processes mailbox completion.
10498 * This function is called in the context of HBA management
10500 * This function returns MBX_SUCCESS when successful.
10501 * This function is called with no lock held.
10504 lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
10507 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
10508 MAILBOX_t *mb = NULL;
10510 unsigned long flag;
10512 /* The caller might set context1 for extended buffer */
10513 if (pmboxq->context1)
10514 mb = (MAILBOX_t *)pmboxq->context1;
10516 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
10517 /* setup wake call as IOCB callback */
10518 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
10519 /* setup context field to pass wait_queue pointer to wake function */
10520 pmboxq->context1 = &done_q;
10522 /* now issue the command */
10523 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
10524 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
10525 wait_event_interruptible_timeout(done_q,
10526 pmboxq->mbox_flag & LPFC_MBX_WAKE,
10527 msecs_to_jiffies(timeout * 1000));
10529 spin_lock_irqsave(&phba->hbalock, flag);
10530 /* restore the possible extended buffer for free resource */
10531 pmboxq->context1 = (uint8_t *)mb;
10533 * if LPFC_MBX_WAKE flag is set the mailbox is completed
10534 * else do not free the resources.
10536 if (pmboxq->mbox_flag & LPFC_MBX_WAKE) {
10537 retval = MBX_SUCCESS;
10539 retval = MBX_TIMEOUT;
10540 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10542 spin_unlock_irqrestore(&phba->hbalock, flag);
10544 /* restore the possible extended buffer for free resource */
10545 pmboxq->context1 = (uint8_t *)mb;
10552 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
10553 * @phba: Pointer to HBA context.
10555 * This function is called to shutdown the driver's mailbox sub-system.
10556 * It first marks the mailbox sub-system is in a block state to prevent
10557 * the asynchronous mailbox command from issued off the pending mailbox
10558 * command queue. If the mailbox command sub-system shutdown is due to
10559 * HBA error conditions such as EEH or ERATT, this routine shall invoke
10560 * the mailbox sub-system flush routine to forcefully bring down the
10561 * mailbox sub-system. Otherwise, if it is due to normal condition (such
10562 * as with offline or HBA function reset), this routine will wait for the
10563 * outstanding mailbox command to complete before invoking the mailbox
10564 * sub-system flush routine to gracefully bring down mailbox sub-system.
10567 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba, int mbx_action)
10569 struct lpfc_sli *psli = &phba->sli;
10570 unsigned long timeout;
10572 if (mbx_action == LPFC_MBX_NO_WAIT) {
10573 /* delay 100ms for port state */
10575 lpfc_sli_mbox_sys_flush(phba);
10578 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
10580 spin_lock_irq(&phba->hbalock);
10581 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
10583 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
10584 /* Determine how long we might wait for the active mailbox
10585 * command to be gracefully completed by firmware.
10587 if (phba->sli.mbox_active)
10588 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
10589 phba->sli.mbox_active) *
10591 spin_unlock_irq(&phba->hbalock);
10593 while (phba->sli.mbox_active) {
10594 /* Check active mailbox complete status every 2ms */
10596 if (time_after(jiffies, timeout))
10597 /* Timeout, let the mailbox flush routine to
10598 * forcefully release active mailbox command
10603 spin_unlock_irq(&phba->hbalock);
10605 lpfc_sli_mbox_sys_flush(phba);
10609 * lpfc_sli_eratt_read - read sli-3 error attention events
10610 * @phba: Pointer to HBA context.
10612 * This function is called to read the SLI3 device error attention registers
10613 * for possible error attention events. The caller must hold the hostlock
10614 * with spin_lock_irq().
10616 * This function returns 1 when there is Error Attention in the Host Attention
10617 * Register and returns 0 otherwise.
10620 lpfc_sli_eratt_read(struct lpfc_hba *phba)
10624 /* Read chip Host Attention (HA) register */
10625 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10628 if (ha_copy & HA_ERATT) {
10629 /* Read host status register to retrieve error event */
10630 if (lpfc_sli_read_hs(phba))
10633 /* Check if there is a deferred error condition is active */
10634 if ((HS_FFER1 & phba->work_hs) &&
10635 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
10636 HS_FFER6 | HS_FFER7 | HS_FFER8) & phba->work_hs)) {
10637 phba->hba_flag |= DEFER_ERATT;
10638 /* Clear all interrupt enable conditions */
10639 writel(0, phba->HCregaddr);
10640 readl(phba->HCregaddr);
10643 /* Set the driver HA work bitmap */
10644 phba->work_ha |= HA_ERATT;
10645 /* Indicate polling handles this ERATT */
10646 phba->hba_flag |= HBA_ERATT_HANDLED;
10652 /* Set the driver HS work bitmap */
10653 phba->work_hs |= UNPLUG_ERR;
10654 /* Set the driver HA work bitmap */
10655 phba->work_ha |= HA_ERATT;
10656 /* Indicate polling handles this ERATT */
10657 phba->hba_flag |= HBA_ERATT_HANDLED;
10662 * lpfc_sli4_eratt_read - read sli-4 error attention events
10663 * @phba: Pointer to HBA context.
10665 * This function is called to read the SLI4 device error attention registers
10666 * for possible error attention events. The caller must hold the hostlock
10667 * with spin_lock_irq().
10669 * This function returns 1 when there is Error Attention in the Host Attention
10670 * Register and returns 0 otherwise.
10673 lpfc_sli4_eratt_read(struct lpfc_hba *phba)
10675 uint32_t uerr_sta_hi, uerr_sta_lo;
10676 uint32_t if_type, portsmphr;
10677 struct lpfc_register portstat_reg;
10680 * For now, use the SLI4 device internal unrecoverable error
10681 * registers for error attention. This can be changed later.
10683 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10685 case LPFC_SLI_INTF_IF_TYPE_0:
10686 if (lpfc_readl(phba->sli4_hba.u.if_type0.UERRLOregaddr,
10688 lpfc_readl(phba->sli4_hba.u.if_type0.UERRHIregaddr,
10690 phba->work_hs |= UNPLUG_ERR;
10691 phba->work_ha |= HA_ERATT;
10692 phba->hba_flag |= HBA_ERATT_HANDLED;
10695 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
10696 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
10697 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10698 "1423 HBA Unrecoverable error: "
10699 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
10700 "ue_mask_lo_reg=0x%x, "
10701 "ue_mask_hi_reg=0x%x\n",
10702 uerr_sta_lo, uerr_sta_hi,
10703 phba->sli4_hba.ue_mask_lo,
10704 phba->sli4_hba.ue_mask_hi);
10705 phba->work_status[0] = uerr_sta_lo;
10706 phba->work_status[1] = uerr_sta_hi;
10707 phba->work_ha |= HA_ERATT;
10708 phba->hba_flag |= HBA_ERATT_HANDLED;
10712 case LPFC_SLI_INTF_IF_TYPE_2:
10713 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
10714 &portstat_reg.word0) ||
10715 lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
10717 phba->work_hs |= UNPLUG_ERR;
10718 phba->work_ha |= HA_ERATT;
10719 phba->hba_flag |= HBA_ERATT_HANDLED;
10722 if (bf_get(lpfc_sliport_status_err, &portstat_reg)) {
10723 phba->work_status[0] =
10724 readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
10725 phba->work_status[1] =
10726 readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
10727 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10728 "2885 Port Status Event: "
10729 "port status reg 0x%x, "
10730 "port smphr reg 0x%x, "
10731 "error 1=0x%x, error 2=0x%x\n",
10732 portstat_reg.word0,
10734 phba->work_status[0],
10735 phba->work_status[1]);
10736 phba->work_ha |= HA_ERATT;
10737 phba->hba_flag |= HBA_ERATT_HANDLED;
10741 case LPFC_SLI_INTF_IF_TYPE_1:
10743 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10744 "2886 HBA Error Attention on unsupported "
10745 "if type %d.", if_type);
10753 * lpfc_sli_check_eratt - check error attention events
10754 * @phba: Pointer to HBA context.
10756 * This function is called from timer soft interrupt context to check HBA's
10757 * error attention register bit for error attention events.
10759 * This function returns 1 when there is Error Attention in the Host Attention
10760 * Register and returns 0 otherwise.
10763 lpfc_sli_check_eratt(struct lpfc_hba *phba)
10767 /* If somebody is waiting to handle an eratt, don't process it
10768 * here. The brdkill function will do this.
10770 if (phba->link_flag & LS_IGNORE_ERATT)
10773 /* Check if interrupt handler handles this ERATT */
10774 spin_lock_irq(&phba->hbalock);
10775 if (phba->hba_flag & HBA_ERATT_HANDLED) {
10776 /* Interrupt handler has handled ERATT */
10777 spin_unlock_irq(&phba->hbalock);
10782 * If there is deferred error attention, do not check for error
10785 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10786 spin_unlock_irq(&phba->hbalock);
10790 /* If PCI channel is offline, don't process it */
10791 if (unlikely(pci_channel_offline(phba->pcidev))) {
10792 spin_unlock_irq(&phba->hbalock);
10796 switch (phba->sli_rev) {
10797 case LPFC_SLI_REV2:
10798 case LPFC_SLI_REV3:
10799 /* Read chip Host Attention (HA) register */
10800 ha_copy = lpfc_sli_eratt_read(phba);
10802 case LPFC_SLI_REV4:
10803 /* Read device Uncoverable Error (UERR) registers */
10804 ha_copy = lpfc_sli4_eratt_read(phba);
10807 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10808 "0299 Invalid SLI revision (%d)\n",
10813 spin_unlock_irq(&phba->hbalock);
10819 * lpfc_intr_state_check - Check device state for interrupt handling
10820 * @phba: Pointer to HBA context.
10822 * This inline routine checks whether a device or its PCI slot is in a state
10823 * that the interrupt should be handled.
10825 * This function returns 0 if the device or the PCI slot is in a state that
10826 * interrupt should be handled, otherwise -EIO.
10829 lpfc_intr_state_check(struct lpfc_hba *phba)
10831 /* If the pci channel is offline, ignore all the interrupts */
10832 if (unlikely(pci_channel_offline(phba->pcidev)))
10835 /* Update device level interrupt statistics */
10836 phba->sli.slistat.sli_intr++;
10838 /* Ignore all interrupts during initialization. */
10839 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
10846 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
10847 * @irq: Interrupt number.
10848 * @dev_id: The device context pointer.
10850 * This function is directly called from the PCI layer as an interrupt
10851 * service routine when device with SLI-3 interface spec is enabled with
10852 * MSI-X multi-message interrupt mode and there are slow-path events in
10853 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
10854 * interrupt mode, this function is called as part of the device-level
10855 * interrupt handler. When the PCI slot is in error recovery or the HBA
10856 * is undergoing initialization, the interrupt handler will not process
10857 * the interrupt. The link attention and ELS ring attention events are
10858 * handled by the worker thread. The interrupt handler signals the worker
10859 * thread and returns for these events. This function is called without
10860 * any lock held. It gets the hbalock to access and update SLI data
10863 * This function returns IRQ_HANDLED when interrupt is handled else it
10864 * returns IRQ_NONE.
10867 lpfc_sli_sp_intr_handler(int irq, void *dev_id)
10869 struct lpfc_hba *phba;
10870 uint32_t ha_copy, hc_copy;
10871 uint32_t work_ha_copy;
10872 unsigned long status;
10873 unsigned long iflag;
10876 MAILBOX_t *mbox, *pmbox;
10877 struct lpfc_vport *vport;
10878 struct lpfc_nodelist *ndlp;
10879 struct lpfc_dmabuf *mp;
10884 * Get the driver's phba structure from the dev_id and
10885 * assume the HBA is not interrupting.
10887 phba = (struct lpfc_hba *)dev_id;
10889 if (unlikely(!phba))
10893 * Stuff needs to be attented to when this function is invoked as an
10894 * individual interrupt handler in MSI-X multi-message interrupt mode
10896 if (phba->intr_type == MSIX) {
10897 /* Check device state for handling interrupt */
10898 if (lpfc_intr_state_check(phba))
10900 /* Need to read HA REG for slow-path events */
10901 spin_lock_irqsave(&phba->hbalock, iflag);
10902 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10904 /* If somebody is waiting to handle an eratt don't process it
10905 * here. The brdkill function will do this.
10907 if (phba->link_flag & LS_IGNORE_ERATT)
10908 ha_copy &= ~HA_ERATT;
10909 /* Check the need for handling ERATT in interrupt handler */
10910 if (ha_copy & HA_ERATT) {
10911 if (phba->hba_flag & HBA_ERATT_HANDLED)
10912 /* ERATT polling has handled ERATT */
10913 ha_copy &= ~HA_ERATT;
10915 /* Indicate interrupt handler handles ERATT */
10916 phba->hba_flag |= HBA_ERATT_HANDLED;
10920 * If there is deferred error attention, do not check for any
10923 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10924 spin_unlock_irqrestore(&phba->hbalock, iflag);
10928 /* Clear up only attention source related to slow-path */
10929 if (lpfc_readl(phba->HCregaddr, &hc_copy))
10932 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
10933 HC_LAINT_ENA | HC_ERINT_ENA),
10935 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
10937 writel(hc_copy, phba->HCregaddr);
10938 readl(phba->HAregaddr); /* flush */
10939 spin_unlock_irqrestore(&phba->hbalock, iflag);
10941 ha_copy = phba->ha_copy;
10943 work_ha_copy = ha_copy & phba->work_ha_mask;
10945 if (work_ha_copy) {
10946 if (work_ha_copy & HA_LATT) {
10947 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
10949 * Turn off Link Attention interrupts
10950 * until CLEAR_LA done
10952 spin_lock_irqsave(&phba->hbalock, iflag);
10953 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
10954 if (lpfc_readl(phba->HCregaddr, &control))
10956 control &= ~HC_LAINT_ENA;
10957 writel(control, phba->HCregaddr);
10958 readl(phba->HCregaddr); /* flush */
10959 spin_unlock_irqrestore(&phba->hbalock, iflag);
10962 work_ha_copy &= ~HA_LATT;
10965 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
10967 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
10968 * the only slow ring.
10970 status = (work_ha_copy &
10971 (HA_RXMASK << (4*LPFC_ELS_RING)));
10972 status >>= (4*LPFC_ELS_RING);
10973 if (status & HA_RXMASK) {
10974 spin_lock_irqsave(&phba->hbalock, iflag);
10975 if (lpfc_readl(phba->HCregaddr, &control))
10978 lpfc_debugfs_slow_ring_trc(phba,
10979 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
10981 (uint32_t)phba->sli.slistat.sli_intr);
10983 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
10984 lpfc_debugfs_slow_ring_trc(phba,
10985 "ISR Disable ring:"
10986 "pwork:x%x hawork:x%x wait:x%x",
10987 phba->work_ha, work_ha_copy,
10988 (uint32_t)((unsigned long)
10989 &phba->work_waitq));
10992 ~(HC_R0INT_ENA << LPFC_ELS_RING);
10993 writel(control, phba->HCregaddr);
10994 readl(phba->HCregaddr); /* flush */
10997 lpfc_debugfs_slow_ring_trc(phba,
10998 "ISR slow ring: pwork:"
10999 "x%x hawork:x%x wait:x%x",
11000 phba->work_ha, work_ha_copy,
11001 (uint32_t)((unsigned long)
11002 &phba->work_waitq));
11004 spin_unlock_irqrestore(&phba->hbalock, iflag);
11007 spin_lock_irqsave(&phba->hbalock, iflag);
11008 if (work_ha_copy & HA_ERATT) {
11009 if (lpfc_sli_read_hs(phba))
11012 * Check if there is a deferred error condition
11015 if ((HS_FFER1 & phba->work_hs) &&
11016 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
11017 HS_FFER6 | HS_FFER7 | HS_FFER8) &
11019 phba->hba_flag |= DEFER_ERATT;
11020 /* Clear all interrupt enable conditions */
11021 writel(0, phba->HCregaddr);
11022 readl(phba->HCregaddr);
11026 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
11027 pmb = phba->sli.mbox_active;
11028 pmbox = &pmb->u.mb;
11030 vport = pmb->vport;
11032 /* First check out the status word */
11033 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
11034 if (pmbox->mbxOwner != OWN_HOST) {
11035 spin_unlock_irqrestore(&phba->hbalock, iflag);
11037 * Stray Mailbox Interrupt, mbxCommand <cmd>
11038 * mbxStatus <status>
11040 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
11042 "(%d):0304 Stray Mailbox "
11043 "Interrupt mbxCommand x%x "
11045 (vport ? vport->vpi : 0),
11048 /* clear mailbox attention bit */
11049 work_ha_copy &= ~HA_MBATT;
11051 phba->sli.mbox_active = NULL;
11052 spin_unlock_irqrestore(&phba->hbalock, iflag);
11053 phba->last_completion_time = jiffies;
11054 del_timer(&phba->sli.mbox_tmo);
11055 if (pmb->mbox_cmpl) {
11056 lpfc_sli_pcimem_bcopy(mbox, pmbox,
11058 if (pmb->out_ext_byte_len &&
11060 lpfc_sli_pcimem_bcopy(
11063 pmb->out_ext_byte_len);
11065 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
11066 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
11068 lpfc_debugfs_disc_trc(vport,
11069 LPFC_DISC_TRC_MBOX_VPORT,
11070 "MBOX dflt rpi: : "
11071 "status:x%x rpi:x%x",
11072 (uint32_t)pmbox->mbxStatus,
11073 pmbox->un.varWords[0], 0);
11075 if (!pmbox->mbxStatus) {
11076 mp = (struct lpfc_dmabuf *)
11078 ndlp = (struct lpfc_nodelist *)
11081 /* Reg_LOGIN of dflt RPI was
11082 * successful. new lets get
11083 * rid of the RPI using the
11084 * same mbox buffer.
11086 lpfc_unreg_login(phba,
11088 pmbox->un.varWords[0],
11091 lpfc_mbx_cmpl_dflt_rpi;
11092 pmb->context1 = mp;
11093 pmb->context2 = ndlp;
11094 pmb->vport = vport;
11095 rc = lpfc_sli_issue_mbox(phba,
11098 if (rc != MBX_BUSY)
11099 lpfc_printf_log(phba,
11101 LOG_MBOX | LOG_SLI,
11102 "0350 rc should have"
11103 "been MBX_BUSY\n");
11104 if (rc != MBX_NOT_FINISHED)
11105 goto send_current_mbox;
11109 &phba->pport->work_port_lock,
11111 phba->pport->work_port_events &=
11113 spin_unlock_irqrestore(
11114 &phba->pport->work_port_lock,
11116 lpfc_mbox_cmpl_put(phba, pmb);
11119 spin_unlock_irqrestore(&phba->hbalock, iflag);
11121 if ((work_ha_copy & HA_MBATT) &&
11122 (phba->sli.mbox_active == NULL)) {
11124 /* Process next mailbox command if there is one */
11126 rc = lpfc_sli_issue_mbox(phba, NULL,
11128 } while (rc == MBX_NOT_FINISHED);
11129 if (rc != MBX_SUCCESS)
11130 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
11131 LOG_SLI, "0349 rc should be "
11135 spin_lock_irqsave(&phba->hbalock, iflag);
11136 phba->work_ha |= work_ha_copy;
11137 spin_unlock_irqrestore(&phba->hbalock, iflag);
11138 lpfc_worker_wake_up(phba);
11140 return IRQ_HANDLED;
11142 spin_unlock_irqrestore(&phba->hbalock, iflag);
11143 return IRQ_HANDLED;
11145 } /* lpfc_sli_sp_intr_handler */
11148 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
11149 * @irq: Interrupt number.
11150 * @dev_id: The device context pointer.
11152 * This function is directly called from the PCI layer as an interrupt
11153 * service routine when device with SLI-3 interface spec is enabled with
11154 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
11155 * ring event in the HBA. However, when the device is enabled with either
11156 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
11157 * device-level interrupt handler. When the PCI slot is in error recovery
11158 * or the HBA is undergoing initialization, the interrupt handler will not
11159 * process the interrupt. The SCSI FCP fast-path ring event are handled in
11160 * the intrrupt context. This function is called without any lock held.
11161 * It gets the hbalock to access and update SLI data structures.
11163 * This function returns IRQ_HANDLED when interrupt is handled else it
11164 * returns IRQ_NONE.
11167 lpfc_sli_fp_intr_handler(int irq, void *dev_id)
11169 struct lpfc_hba *phba;
11171 unsigned long status;
11172 unsigned long iflag;
11174 /* Get the driver's phba structure from the dev_id and
11175 * assume the HBA is not interrupting.
11177 phba = (struct lpfc_hba *) dev_id;
11179 if (unlikely(!phba))
11183 * Stuff needs to be attented to when this function is invoked as an
11184 * individual interrupt handler in MSI-X multi-message interrupt mode
11186 if (phba->intr_type == MSIX) {
11187 /* Check device state for handling interrupt */
11188 if (lpfc_intr_state_check(phba))
11190 /* Need to read HA REG for FCP ring and other ring events */
11191 if (lpfc_readl(phba->HAregaddr, &ha_copy))
11192 return IRQ_HANDLED;
11193 /* Clear up only attention source related to fast-path */
11194 spin_lock_irqsave(&phba->hbalock, iflag);
11196 * If there is deferred error attention, do not check for
11199 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
11200 spin_unlock_irqrestore(&phba->hbalock, iflag);
11203 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
11205 readl(phba->HAregaddr); /* flush */
11206 spin_unlock_irqrestore(&phba->hbalock, iflag);
11208 ha_copy = phba->ha_copy;
11211 * Process all events on FCP ring. Take the optimized path for FCP IO.
11213 ha_copy &= ~(phba->work_ha_mask);
11215 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
11216 status >>= (4*LPFC_FCP_RING);
11217 if (status & HA_RXMASK)
11218 lpfc_sli_handle_fast_ring_event(phba,
11219 &phba->sli.ring[LPFC_FCP_RING],
11222 if (phba->cfg_multi_ring_support == 2) {
11224 * Process all events on extra ring. Take the optimized path
11225 * for extra ring IO.
11227 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
11228 status >>= (4*LPFC_EXTRA_RING);
11229 if (status & HA_RXMASK) {
11230 lpfc_sli_handle_fast_ring_event(phba,
11231 &phba->sli.ring[LPFC_EXTRA_RING],
11235 return IRQ_HANDLED;
11236 } /* lpfc_sli_fp_intr_handler */
11239 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
11240 * @irq: Interrupt number.
11241 * @dev_id: The device context pointer.
11243 * This function is the HBA device-level interrupt handler to device with
11244 * SLI-3 interface spec, called from the PCI layer when either MSI or
11245 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
11246 * requires driver attention. This function invokes the slow-path interrupt
11247 * attention handling function and fast-path interrupt attention handling
11248 * function in turn to process the relevant HBA attention events. This
11249 * function is called without any lock held. It gets the hbalock to access
11250 * and update SLI data structures.
11252 * This function returns IRQ_HANDLED when interrupt is handled, else it
11253 * returns IRQ_NONE.
11256 lpfc_sli_intr_handler(int irq, void *dev_id)
11258 struct lpfc_hba *phba;
11259 irqreturn_t sp_irq_rc, fp_irq_rc;
11260 unsigned long status1, status2;
11264 * Get the driver's phba structure from the dev_id and
11265 * assume the HBA is not interrupting.
11267 phba = (struct lpfc_hba *) dev_id;
11269 if (unlikely(!phba))
11272 /* Check device state for handling interrupt */
11273 if (lpfc_intr_state_check(phba))
11276 spin_lock(&phba->hbalock);
11277 if (lpfc_readl(phba->HAregaddr, &phba->ha_copy)) {
11278 spin_unlock(&phba->hbalock);
11279 return IRQ_HANDLED;
11282 if (unlikely(!phba->ha_copy)) {
11283 spin_unlock(&phba->hbalock);
11285 } else if (phba->ha_copy & HA_ERATT) {
11286 if (phba->hba_flag & HBA_ERATT_HANDLED)
11287 /* ERATT polling has handled ERATT */
11288 phba->ha_copy &= ~HA_ERATT;
11290 /* Indicate interrupt handler handles ERATT */
11291 phba->hba_flag |= HBA_ERATT_HANDLED;
11295 * If there is deferred error attention, do not check for any interrupt.
11297 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
11298 spin_unlock(&phba->hbalock);
11302 /* Clear attention sources except link and error attentions */
11303 if (lpfc_readl(phba->HCregaddr, &hc_copy)) {
11304 spin_unlock(&phba->hbalock);
11305 return IRQ_HANDLED;
11307 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
11308 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
11310 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
11311 writel(hc_copy, phba->HCregaddr);
11312 readl(phba->HAregaddr); /* flush */
11313 spin_unlock(&phba->hbalock);
11316 * Invokes slow-path host attention interrupt handling as appropriate.
11319 /* status of events with mailbox and link attention */
11320 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
11322 /* status of events with ELS ring */
11323 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
11324 status2 >>= (4*LPFC_ELS_RING);
11326 if (status1 || (status2 & HA_RXMASK))
11327 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
11329 sp_irq_rc = IRQ_NONE;
11332 * Invoke fast-path host attention interrupt handling as appropriate.
11335 /* status of events with FCP ring */
11336 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
11337 status1 >>= (4*LPFC_FCP_RING);
11339 /* status of events with extra ring */
11340 if (phba->cfg_multi_ring_support == 2) {
11341 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
11342 status2 >>= (4*LPFC_EXTRA_RING);
11346 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
11347 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
11349 fp_irq_rc = IRQ_NONE;
11351 /* Return device-level interrupt handling status */
11352 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
11353 } /* lpfc_sli_intr_handler */
11356 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
11357 * @phba: pointer to lpfc hba data structure.
11359 * This routine is invoked by the worker thread to process all the pending
11360 * SLI4 FCP abort XRI events.
11362 void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba)
11364 struct lpfc_cq_event *cq_event;
11366 /* First, declare the fcp xri abort event has been handled */
11367 spin_lock_irq(&phba->hbalock);
11368 phba->hba_flag &= ~FCP_XRI_ABORT_EVENT;
11369 spin_unlock_irq(&phba->hbalock);
11370 /* Now, handle all the fcp xri abort events */
11371 while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) {
11372 /* Get the first event from the head of the event queue */
11373 spin_lock_irq(&phba->hbalock);
11374 list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
11375 cq_event, struct lpfc_cq_event, list);
11376 spin_unlock_irq(&phba->hbalock);
11377 /* Notify aborted XRI for FCP work queue */
11378 lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
11379 /* Free the event processed back to the free pool */
11380 lpfc_sli4_cq_event_release(phba, cq_event);
11385 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
11386 * @phba: pointer to lpfc hba data structure.
11388 * This routine is invoked by the worker thread to process all the pending
11389 * SLI4 els abort xri events.
11391 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
11393 struct lpfc_cq_event *cq_event;
11395 /* First, declare the els xri abort event has been handled */
11396 spin_lock_irq(&phba->hbalock);
11397 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
11398 spin_unlock_irq(&phba->hbalock);
11399 /* Now, handle all the els xri abort events */
11400 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
11401 /* Get the first event from the head of the event queue */
11402 spin_lock_irq(&phba->hbalock);
11403 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
11404 cq_event, struct lpfc_cq_event, list);
11405 spin_unlock_irq(&phba->hbalock);
11406 /* Notify aborted XRI for ELS work queue */
11407 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
11408 /* Free the event processed back to the free pool */
11409 lpfc_sli4_cq_event_release(phba, cq_event);
11414 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
11415 * @phba: pointer to lpfc hba data structure
11416 * @pIocbIn: pointer to the rspiocbq
11417 * @pIocbOut: pointer to the cmdiocbq
11418 * @wcqe: pointer to the complete wcqe
11420 * This routine transfers the fields of a command iocbq to a response iocbq
11421 * by copying all the IOCB fields from command iocbq and transferring the
11422 * completion status information from the complete wcqe.
11425 lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
11426 struct lpfc_iocbq *pIocbIn,
11427 struct lpfc_iocbq *pIocbOut,
11428 struct lpfc_wcqe_complete *wcqe)
11431 unsigned long iflags;
11432 uint32_t status, max_response;
11433 struct lpfc_dmabuf *dmabuf;
11434 struct ulp_bde64 *bpl, bde;
11435 size_t offset = offsetof(struct lpfc_iocbq, iocb);
11437 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
11438 sizeof(struct lpfc_iocbq) - offset);
11439 /* Map WCQE parameters into irspiocb parameters */
11440 status = bf_get(lpfc_wcqe_c_status, wcqe);
11441 pIocbIn->iocb.ulpStatus = (status & LPFC_IOCB_STATUS_MASK);
11442 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
11443 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
11444 pIocbIn->iocb.un.fcpi.fcpi_parm =
11445 pIocbOut->iocb.un.fcpi.fcpi_parm -
11446 wcqe->total_data_placed;
11448 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
11450 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
11451 switch (pIocbOut->iocb.ulpCommand) {
11452 case CMD_ELS_REQUEST64_CR:
11453 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
11454 bpl = (struct ulp_bde64 *)dmabuf->virt;
11455 bde.tus.w = le32_to_cpu(bpl[1].tus.w);
11456 max_response = bde.tus.f.bdeSize;
11458 case CMD_GEN_REQUEST64_CR:
11460 if (!pIocbOut->context3)
11462 numBdes = pIocbOut->iocb.un.genreq64.bdl.bdeSize/
11463 sizeof(struct ulp_bde64);
11464 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
11465 bpl = (struct ulp_bde64 *)dmabuf->virt;
11466 for (i = 0; i < numBdes; i++) {
11467 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
11468 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
11469 max_response += bde.tus.f.bdeSize;
11473 max_response = wcqe->total_data_placed;
11476 if (max_response < wcqe->total_data_placed)
11477 pIocbIn->iocb.un.genreq64.bdl.bdeSize = max_response;
11479 pIocbIn->iocb.un.genreq64.bdl.bdeSize =
11480 wcqe->total_data_placed;
11483 /* Convert BG errors for completion status */
11484 if (status == CQE_STATUS_DI_ERROR) {
11485 pIocbIn->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
11487 if (bf_get(lpfc_wcqe_c_bg_edir, wcqe))
11488 pIocbIn->iocb.un.ulpWord[4] = IOERR_RX_DMA_FAILED;
11490 pIocbIn->iocb.un.ulpWord[4] = IOERR_TX_DMA_FAILED;
11492 pIocbIn->iocb.unsli3.sli3_bg.bgstat = 0;
11493 if (bf_get(lpfc_wcqe_c_bg_ge, wcqe)) /* Guard Check failed */
11494 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11495 BGS_GUARD_ERR_MASK;
11496 if (bf_get(lpfc_wcqe_c_bg_ae, wcqe)) /* App Tag Check failed */
11497 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11498 BGS_APPTAG_ERR_MASK;
11499 if (bf_get(lpfc_wcqe_c_bg_re, wcqe)) /* Ref Tag Check failed */
11500 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11501 BGS_REFTAG_ERR_MASK;
11503 /* Check to see if there was any good data before the error */
11504 if (bf_get(lpfc_wcqe_c_bg_tdpv, wcqe)) {
11505 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11506 BGS_HI_WATER_MARK_PRESENT_MASK;
11507 pIocbIn->iocb.unsli3.sli3_bg.bghm =
11508 wcqe->total_data_placed;
11512 * Set ALL the error bits to indicate we don't know what
11513 * type of error it is.
11515 if (!pIocbIn->iocb.unsli3.sli3_bg.bgstat)
11516 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11517 (BGS_REFTAG_ERR_MASK | BGS_APPTAG_ERR_MASK |
11518 BGS_GUARD_ERR_MASK);
11521 /* Pick up HBA exchange busy condition */
11522 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
11523 spin_lock_irqsave(&phba->hbalock, iflags);
11524 pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY;
11525 spin_unlock_irqrestore(&phba->hbalock, iflags);
11530 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
11531 * @phba: Pointer to HBA context object.
11532 * @wcqe: Pointer to work-queue completion queue entry.
11534 * This routine handles an ELS work-queue completion event and construct
11535 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
11536 * discovery engine to handle.
11538 * Return: Pointer to the receive IOCBQ, NULL otherwise.
11540 static struct lpfc_iocbq *
11541 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
11542 struct lpfc_iocbq *irspiocbq)
11544 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
11545 struct lpfc_iocbq *cmdiocbq;
11546 struct lpfc_wcqe_complete *wcqe;
11547 unsigned long iflags;
11549 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
11550 spin_lock_irqsave(&pring->ring_lock, iflags);
11551 pring->stats.iocb_event++;
11552 /* Look up the ELS command IOCB and create pseudo response IOCB */
11553 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
11554 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11555 spin_unlock_irqrestore(&pring->ring_lock, iflags);
11557 if (unlikely(!cmdiocbq)) {
11558 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11559 "0386 ELS complete with no corresponding "
11560 "cmdiocb: iotag (%d)\n",
11561 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11562 lpfc_sli_release_iocbq(phba, irspiocbq);
11566 /* Fake the irspiocbq and copy necessary response information */
11567 lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe);
11573 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
11574 * @phba: Pointer to HBA context object.
11575 * @cqe: Pointer to mailbox completion queue entry.
11577 * This routine process a mailbox completion queue entry with asynchrous
11580 * Return: true if work posted to worker thread, otherwise false.
11583 lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
11585 struct lpfc_cq_event *cq_event;
11586 unsigned long iflags;
11588 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11589 "0392 Async Event: word0:x%x, word1:x%x, "
11590 "word2:x%x, word3:x%x\n", mcqe->word0,
11591 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
11593 /* Allocate a new internal CQ_EVENT entry */
11594 cq_event = lpfc_sli4_cq_event_alloc(phba);
11596 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11597 "0394 Failed to allocate CQ_EVENT entry\n");
11601 /* Move the CQE into an asynchronous event entry */
11602 memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe));
11603 spin_lock_irqsave(&phba->hbalock, iflags);
11604 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
11605 /* Set the async event flag */
11606 phba->hba_flag |= ASYNC_EVENT;
11607 spin_unlock_irqrestore(&phba->hbalock, iflags);
11613 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
11614 * @phba: Pointer to HBA context object.
11615 * @cqe: Pointer to mailbox completion queue entry.
11617 * This routine process a mailbox completion queue entry with mailbox
11618 * completion event.
11620 * Return: true if work posted to worker thread, otherwise false.
11623 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
11625 uint32_t mcqe_status;
11626 MAILBOX_t *mbox, *pmbox;
11627 struct lpfc_mqe *mqe;
11628 struct lpfc_vport *vport;
11629 struct lpfc_nodelist *ndlp;
11630 struct lpfc_dmabuf *mp;
11631 unsigned long iflags;
11633 bool workposted = false;
11636 /* If not a mailbox complete MCQE, out by checking mailbox consume */
11637 if (!bf_get(lpfc_trailer_completed, mcqe))
11638 goto out_no_mqe_complete;
11640 /* Get the reference to the active mbox command */
11641 spin_lock_irqsave(&phba->hbalock, iflags);
11642 pmb = phba->sli.mbox_active;
11643 if (unlikely(!pmb)) {
11644 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
11645 "1832 No pending MBOX command to handle\n");
11646 spin_unlock_irqrestore(&phba->hbalock, iflags);
11647 goto out_no_mqe_complete;
11649 spin_unlock_irqrestore(&phba->hbalock, iflags);
11651 pmbox = (MAILBOX_t *)&pmb->u.mqe;
11653 vport = pmb->vport;
11655 /* Reset heartbeat timer */
11656 phba->last_completion_time = jiffies;
11657 del_timer(&phba->sli.mbox_tmo);
11659 /* Move mbox data to caller's mailbox region, do endian swapping */
11660 if (pmb->mbox_cmpl && mbox)
11661 lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
11664 * For mcqe errors, conditionally move a modified error code to
11665 * the mbox so that the error will not be missed.
11667 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
11668 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
11669 if (bf_get(lpfc_mqe_status, mqe) == MBX_SUCCESS)
11670 bf_set(lpfc_mqe_status, mqe,
11671 (LPFC_MBX_ERROR_RANGE | mcqe_status));
11673 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
11674 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
11675 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
11676 "MBOX dflt rpi: status:x%x rpi:x%x",
11678 pmbox->un.varWords[0], 0);
11679 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
11680 mp = (struct lpfc_dmabuf *)(pmb->context1);
11681 ndlp = (struct lpfc_nodelist *)pmb->context2;
11682 /* Reg_LOGIN of dflt RPI was successful. Now lets get
11683 * RID of the PPI using the same mbox buffer.
11685 lpfc_unreg_login(phba, vport->vpi,
11686 pmbox->un.varWords[0], pmb);
11687 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
11688 pmb->context1 = mp;
11689 pmb->context2 = ndlp;
11690 pmb->vport = vport;
11691 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
11692 if (rc != MBX_BUSY)
11693 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
11694 LOG_SLI, "0385 rc should "
11695 "have been MBX_BUSY\n");
11696 if (rc != MBX_NOT_FINISHED)
11697 goto send_current_mbox;
11700 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
11701 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
11702 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
11704 /* There is mailbox completion work to do */
11705 spin_lock_irqsave(&phba->hbalock, iflags);
11706 __lpfc_mbox_cmpl_put(phba, pmb);
11707 phba->work_ha |= HA_MBATT;
11708 spin_unlock_irqrestore(&phba->hbalock, iflags);
11712 spin_lock_irqsave(&phba->hbalock, iflags);
11713 /* Release the mailbox command posting token */
11714 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
11715 /* Setting active mailbox pointer need to be in sync to flag clear */
11716 phba->sli.mbox_active = NULL;
11717 spin_unlock_irqrestore(&phba->hbalock, iflags);
11718 /* Wake up worker thread to post the next pending mailbox command */
11719 lpfc_worker_wake_up(phba);
11720 out_no_mqe_complete:
11721 if (bf_get(lpfc_trailer_consumed, mcqe))
11722 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
11727 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
11728 * @phba: Pointer to HBA context object.
11729 * @cqe: Pointer to mailbox completion queue entry.
11731 * This routine process a mailbox completion queue entry, it invokes the
11732 * proper mailbox complete handling or asynchrous event handling routine
11733 * according to the MCQE's async bit.
11735 * Return: true if work posted to worker thread, otherwise false.
11738 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
11740 struct lpfc_mcqe mcqe;
11743 /* Copy the mailbox MCQE and convert endian order as needed */
11744 lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
11746 /* Invoke the proper event handling routine */
11747 if (!bf_get(lpfc_trailer_async, &mcqe))
11748 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
11750 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
11755 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
11756 * @phba: Pointer to HBA context object.
11757 * @cq: Pointer to associated CQ
11758 * @wcqe: Pointer to work-queue completion queue entry.
11760 * This routine handles an ELS work-queue completion event.
11762 * Return: true if work posted to worker thread, otherwise false.
11765 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11766 struct lpfc_wcqe_complete *wcqe)
11768 struct lpfc_iocbq *irspiocbq;
11769 unsigned long iflags;
11770 struct lpfc_sli_ring *pring = cq->pring;
11772 int txcmplq_cnt = 0;
11773 int fcp_txcmplq_cnt = 0;
11775 /* Get an irspiocbq for later ELS response processing use */
11776 irspiocbq = lpfc_sli_get_iocbq(phba);
11778 if (!list_empty(&pring->txq))
11780 if (!list_empty(&pring->txcmplq))
11782 if (!list_empty(&phba->sli.ring[LPFC_FCP_RING].txcmplq))
11784 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11785 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
11786 "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n",
11787 txq_cnt, phba->iocb_cnt,
11793 /* Save off the slow-path queue event for work thread to process */
11794 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
11795 spin_lock_irqsave(&phba->hbalock, iflags);
11796 list_add_tail(&irspiocbq->cq_event.list,
11797 &phba->sli4_hba.sp_queue_event);
11798 phba->hba_flag |= HBA_SP_QUEUE_EVT;
11799 spin_unlock_irqrestore(&phba->hbalock, iflags);
11805 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
11806 * @phba: Pointer to HBA context object.
11807 * @wcqe: Pointer to work-queue completion queue entry.
11809 * This routine handles slow-path WQ entry comsumed event by invoking the
11810 * proper WQ release routine to the slow-path WQ.
11813 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
11814 struct lpfc_wcqe_release *wcqe)
11816 /* sanity check on queue memory */
11817 if (unlikely(!phba->sli4_hba.els_wq))
11819 /* Check for the slow-path ELS work queue */
11820 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
11821 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
11822 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
11824 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11825 "2579 Slow-path wqe consume event carries "
11826 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
11827 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
11828 phba->sli4_hba.els_wq->queue_id);
11832 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
11833 * @phba: Pointer to HBA context object.
11834 * @cq: Pointer to a WQ completion queue.
11835 * @wcqe: Pointer to work-queue completion queue entry.
11837 * This routine handles an XRI abort event.
11839 * Return: true if work posted to worker thread, otherwise false.
11842 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
11843 struct lpfc_queue *cq,
11844 struct sli4_wcqe_xri_aborted *wcqe)
11846 bool workposted = false;
11847 struct lpfc_cq_event *cq_event;
11848 unsigned long iflags;
11850 /* Allocate a new internal CQ_EVENT entry */
11851 cq_event = lpfc_sli4_cq_event_alloc(phba);
11853 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11854 "0602 Failed to allocate CQ_EVENT entry\n");
11858 /* Move the CQE into the proper xri abort event list */
11859 memcpy(&cq_event->cqe, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
11860 switch (cq->subtype) {
11862 spin_lock_irqsave(&phba->hbalock, iflags);
11863 list_add_tail(&cq_event->list,
11864 &phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
11865 /* Set the fcp xri abort event flag */
11866 phba->hba_flag |= FCP_XRI_ABORT_EVENT;
11867 spin_unlock_irqrestore(&phba->hbalock, iflags);
11871 spin_lock_irqsave(&phba->hbalock, iflags);
11872 list_add_tail(&cq_event->list,
11873 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
11874 /* Set the els xri abort event flag */
11875 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
11876 spin_unlock_irqrestore(&phba->hbalock, iflags);
11880 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11881 "0603 Invalid work queue CQE subtype (x%x)\n",
11883 workposted = false;
11890 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
11891 * @phba: Pointer to HBA context object.
11892 * @rcqe: Pointer to receive-queue completion queue entry.
11894 * This routine process a receive-queue completion queue entry.
11896 * Return: true if work posted to worker thread, otherwise false.
11899 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
11901 bool workposted = false;
11902 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
11903 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
11904 struct hbq_dmabuf *dma_buf;
11905 uint32_t status, rq_id;
11906 unsigned long iflags;
11908 /* sanity check on queue memory */
11909 if (unlikely(!hrq) || unlikely(!drq))
11912 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
11913 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
11915 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
11916 if (rq_id != hrq->queue_id)
11919 status = bf_get(lpfc_rcqe_status, rcqe);
11921 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
11922 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11923 "2537 Receive Frame Truncated!!\n");
11924 hrq->RQ_buf_trunc++;
11925 case FC_STATUS_RQ_SUCCESS:
11926 lpfc_sli4_rq_release(hrq, drq);
11927 spin_lock_irqsave(&phba->hbalock, iflags);
11928 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
11930 hrq->RQ_no_buf_found++;
11931 spin_unlock_irqrestore(&phba->hbalock, iflags);
11935 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
11936 /* save off the frame for the word thread to process */
11937 list_add_tail(&dma_buf->cq_event.list,
11938 &phba->sli4_hba.sp_queue_event);
11939 /* Frame received */
11940 phba->hba_flag |= HBA_SP_QUEUE_EVT;
11941 spin_unlock_irqrestore(&phba->hbalock, iflags);
11944 case FC_STATUS_INSUFF_BUF_NEED_BUF:
11945 case FC_STATUS_INSUFF_BUF_FRM_DISC:
11946 hrq->RQ_no_posted_buf++;
11947 /* Post more buffers if possible */
11948 spin_lock_irqsave(&phba->hbalock, iflags);
11949 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
11950 spin_unlock_irqrestore(&phba->hbalock, iflags);
11959 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
11960 * @phba: Pointer to HBA context object.
11961 * @cq: Pointer to the completion queue.
11962 * @wcqe: Pointer to a completion queue entry.
11964 * This routine process a slow-path work-queue or receive queue completion queue
11967 * Return: true if work posted to worker thread, otherwise false.
11970 lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11971 struct lpfc_cqe *cqe)
11973 struct lpfc_cqe cqevt;
11974 bool workposted = false;
11976 /* Copy the work queue CQE and convert endian order if needed */
11977 lpfc_sli_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
11979 /* Check and process for different type of WCQE and dispatch */
11980 switch (bf_get(lpfc_cqe_code, &cqevt)) {
11981 case CQE_CODE_COMPL_WQE:
11982 /* Process the WQ/RQ complete event */
11983 phba->last_completion_time = jiffies;
11984 workposted = lpfc_sli4_sp_handle_els_wcqe(phba, cq,
11985 (struct lpfc_wcqe_complete *)&cqevt);
11987 case CQE_CODE_RELEASE_WQE:
11988 /* Process the WQ release event */
11989 lpfc_sli4_sp_handle_rel_wcqe(phba,
11990 (struct lpfc_wcqe_release *)&cqevt);
11992 case CQE_CODE_XRI_ABORTED:
11993 /* Process the WQ XRI abort event */
11994 phba->last_completion_time = jiffies;
11995 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
11996 (struct sli4_wcqe_xri_aborted *)&cqevt);
11998 case CQE_CODE_RECEIVE:
11999 case CQE_CODE_RECEIVE_V1:
12000 /* Process the RQ event */
12001 phba->last_completion_time = jiffies;
12002 workposted = lpfc_sli4_sp_handle_rcqe(phba,
12003 (struct lpfc_rcqe *)&cqevt);
12006 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12007 "0388 Not a valid WCQE code: x%x\n",
12008 bf_get(lpfc_cqe_code, &cqevt));
12015 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
12016 * @phba: Pointer to HBA context object.
12017 * @eqe: Pointer to fast-path event queue entry.
12019 * This routine process a event queue entry from the slow-path event queue.
12020 * It will check the MajorCode and MinorCode to determine this is for a
12021 * completion event on a completion queue, if not, an error shall be logged
12022 * and just return. Otherwise, it will get to the corresponding completion
12023 * queue and process all the entries on that completion queue, rearm the
12024 * completion queue, and then return.
12028 lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
12029 struct lpfc_queue *speq)
12031 struct lpfc_queue *cq = NULL, *childq;
12032 struct lpfc_cqe *cqe;
12033 bool workposted = false;
12037 /* Get the reference to the corresponding CQ */
12038 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
12040 list_for_each_entry(childq, &speq->child_list, list) {
12041 if (childq->queue_id == cqid) {
12046 if (unlikely(!cq)) {
12047 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
12048 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12049 "0365 Slow-path CQ identifier "
12050 "(%d) does not exist\n", cqid);
12054 /* Process all the entries to the CQ */
12055 switch (cq->type) {
12057 while ((cqe = lpfc_sli4_cq_get(cq))) {
12058 workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe);
12059 if (!(++ecount % cq->entry_repost))
12060 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
12065 while ((cqe = lpfc_sli4_cq_get(cq))) {
12066 if (cq->subtype == LPFC_FCP)
12067 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq,
12070 workposted |= lpfc_sli4_sp_handle_cqe(phba, cq,
12072 if (!(++ecount % cq->entry_repost))
12073 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
12076 /* Track the max number of CQEs processed in 1 EQ */
12077 if (ecount > cq->CQ_max_cqe)
12078 cq->CQ_max_cqe = ecount;
12081 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12082 "0370 Invalid completion queue type (%d)\n",
12087 /* Catch the no cq entry condition, log an error */
12088 if (unlikely(ecount == 0))
12089 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12090 "0371 No entry from the CQ: identifier "
12091 "(x%x), type (%d)\n", cq->queue_id, cq->type);
12093 /* In any case, flash and re-arm the RCQ */
12094 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
12096 /* wake up worker thread if there are works to be done */
12098 lpfc_worker_wake_up(phba);
12102 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
12103 * @phba: Pointer to HBA context object.
12104 * @cq: Pointer to associated CQ
12105 * @wcqe: Pointer to work-queue completion queue entry.
12107 * This routine process a fast-path work queue completion entry from fast-path
12108 * event queue for FCP command response completion.
12111 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
12112 struct lpfc_wcqe_complete *wcqe)
12114 struct lpfc_sli_ring *pring = cq->pring;
12115 struct lpfc_iocbq *cmdiocbq;
12116 struct lpfc_iocbq irspiocbq;
12117 unsigned long iflags;
12119 /* Check for response status */
12120 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
12121 /* If resource errors reported from HBA, reduce queue
12122 * depth of the SCSI device.
12124 if (((bf_get(lpfc_wcqe_c_status, wcqe) ==
12125 IOSTAT_LOCAL_REJECT)) &&
12126 ((wcqe->parameter & IOERR_PARAM_MASK) ==
12127 IOERR_NO_RESOURCES))
12128 phba->lpfc_rampdown_queue_depth(phba);
12130 /* Log the error status */
12131 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12132 "0373 FCP complete error: status=x%x, "
12133 "hw_status=x%x, total_data_specified=%d, "
12134 "parameter=x%x, word3=x%x\n",
12135 bf_get(lpfc_wcqe_c_status, wcqe),
12136 bf_get(lpfc_wcqe_c_hw_status, wcqe),
12137 wcqe->total_data_placed, wcqe->parameter,
12141 /* Look up the FCP command IOCB and create pseudo response IOCB */
12142 spin_lock_irqsave(&pring->ring_lock, iflags);
12143 pring->stats.iocb_event++;
12144 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
12145 bf_get(lpfc_wcqe_c_request_tag, wcqe));
12146 spin_unlock_irqrestore(&pring->ring_lock, iflags);
12147 if (unlikely(!cmdiocbq)) {
12148 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12149 "0374 FCP complete with no corresponding "
12150 "cmdiocb: iotag (%d)\n",
12151 bf_get(lpfc_wcqe_c_request_tag, wcqe));
12154 if (unlikely(!cmdiocbq->iocb_cmpl)) {
12155 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12156 "0375 FCP cmdiocb not callback function "
12158 bf_get(lpfc_wcqe_c_request_tag, wcqe));
12162 /* Fake the irspiocb and copy necessary response information */
12163 lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
12165 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
12166 spin_lock_irqsave(&phba->hbalock, iflags);
12167 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
12168 spin_unlock_irqrestore(&phba->hbalock, iflags);
12171 /* Pass the cmd_iocb and the rsp state to the upper layer */
12172 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
12176 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
12177 * @phba: Pointer to HBA context object.
12178 * @cq: Pointer to completion queue.
12179 * @wcqe: Pointer to work-queue completion queue entry.
12181 * This routine handles an fast-path WQ entry comsumed event by invoking the
12182 * proper WQ release routine to the slow-path WQ.
12185 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
12186 struct lpfc_wcqe_release *wcqe)
12188 struct lpfc_queue *childwq;
12189 bool wqid_matched = false;
12192 /* Check for fast-path FCP work queue release */
12193 fcp_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
12194 list_for_each_entry(childwq, &cq->child_list, list) {
12195 if (childwq->queue_id == fcp_wqid) {
12196 lpfc_sli4_wq_release(childwq,
12197 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
12198 wqid_matched = true;
12202 /* Report warning log message if no match found */
12203 if (wqid_matched != true)
12204 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12205 "2580 Fast-path wqe consume event carries "
12206 "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid);
12210 * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry
12211 * @cq: Pointer to the completion queue.
12212 * @eqe: Pointer to fast-path completion queue entry.
12214 * This routine process a fast-path work queue completion entry from fast-path
12215 * event queue for FCP command response completion.
12218 lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
12219 struct lpfc_cqe *cqe)
12221 struct lpfc_wcqe_release wcqe;
12222 bool workposted = false;
12224 /* Copy the work queue CQE and convert endian order if needed */
12225 lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
12227 /* Check and process for different type of WCQE and dispatch */
12228 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
12229 case CQE_CODE_COMPL_WQE:
12231 /* Process the WQ complete event */
12232 phba->last_completion_time = jiffies;
12233 lpfc_sli4_fp_handle_fcp_wcqe(phba, cq,
12234 (struct lpfc_wcqe_complete *)&wcqe);
12236 case CQE_CODE_RELEASE_WQE:
12237 cq->CQ_release_wqe++;
12238 /* Process the WQ release event */
12239 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
12240 (struct lpfc_wcqe_release *)&wcqe);
12242 case CQE_CODE_XRI_ABORTED:
12243 cq->CQ_xri_aborted++;
12244 /* Process the WQ XRI abort event */
12245 phba->last_completion_time = jiffies;
12246 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
12247 (struct sli4_wcqe_xri_aborted *)&wcqe);
12250 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12251 "0144 Not a valid WCQE code: x%x\n",
12252 bf_get(lpfc_wcqe_c_code, &wcqe));
12259 * lpfc_sli4_hba_handle_eqe - Process a fast-path event queue entry
12260 * @phba: Pointer to HBA context object.
12261 * @eqe: Pointer to fast-path event queue entry.
12263 * This routine process a event queue entry from the fast-path event queue.
12264 * It will check the MajorCode and MinorCode to determine this is for a
12265 * completion event on a completion queue, if not, an error shall be logged
12266 * and just return. Otherwise, it will get to the corresponding completion
12267 * queue and process all the entries on the completion queue, rearm the
12268 * completion queue, and then return.
12271 lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
12274 struct lpfc_queue *cq;
12275 struct lpfc_cqe *cqe;
12276 bool workposted = false;
12280 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
12281 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12282 "0366 Not a valid completion "
12283 "event: majorcode=x%x, minorcode=x%x\n",
12284 bf_get_le32(lpfc_eqe_major_code, eqe),
12285 bf_get_le32(lpfc_eqe_minor_code, eqe));
12289 /* Get the reference to the corresponding CQ */
12290 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
12292 /* Check if this is a Slow path event */
12293 if (unlikely(cqid != phba->sli4_hba.fcp_cq_map[qidx])) {
12294 lpfc_sli4_sp_handle_eqe(phba, eqe,
12295 phba->sli4_hba.hba_eq[qidx]);
12299 if (unlikely(!phba->sli4_hba.fcp_cq)) {
12300 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12301 "3146 Fast-path completion queues "
12302 "does not exist\n");
12305 cq = phba->sli4_hba.fcp_cq[qidx];
12306 if (unlikely(!cq)) {
12307 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
12308 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12309 "0367 Fast-path completion queue "
12310 "(%d) does not exist\n", qidx);
12314 if (unlikely(cqid != cq->queue_id)) {
12315 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12316 "0368 Miss-matched fast-path completion "
12317 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
12318 cqid, cq->queue_id);
12322 /* Process all the entries to the CQ */
12323 while ((cqe = lpfc_sli4_cq_get(cq))) {
12324 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe);
12325 if (!(++ecount % cq->entry_repost))
12326 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
12329 /* Track the max number of CQEs processed in 1 EQ */
12330 if (ecount > cq->CQ_max_cqe)
12331 cq->CQ_max_cqe = ecount;
12333 /* Catch the no cq entry condition */
12334 if (unlikely(ecount == 0))
12335 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12336 "0369 No entry from fast-path completion "
12337 "queue fcpcqid=%d\n", cq->queue_id);
12339 /* In any case, flash and re-arm the CQ */
12340 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
12342 /* wake up worker thread if there are works to be done */
12344 lpfc_worker_wake_up(phba);
12348 lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
12350 struct lpfc_eqe *eqe;
12352 /* walk all the EQ entries and drop on the floor */
12353 while ((eqe = lpfc_sli4_eq_get(eq)))
12356 /* Clear and re-arm the EQ */
12357 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
12362 * lpfc_sli4_fof_handle_eqe - Process a Flash Optimized Fabric event queue
12364 * @phba: Pointer to HBA context object.
12365 * @eqe: Pointer to fast-path event queue entry.
12367 * This routine process a event queue entry from the Flash Optimized Fabric
12368 * event queue. It will check the MajorCode and MinorCode to determine this
12369 * is for a completion event on a completion queue, if not, an error shall be
12370 * logged and just return. Otherwise, it will get to the corresponding
12371 * completion queue and process all the entries on the completion queue, rearm
12372 * the completion queue, and then return.
12375 lpfc_sli4_fof_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe)
12377 struct lpfc_queue *cq;
12378 struct lpfc_cqe *cqe;
12379 bool workposted = false;
12383 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
12384 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12385 "9147 Not a valid completion "
12386 "event: majorcode=x%x, minorcode=x%x\n",
12387 bf_get_le32(lpfc_eqe_major_code, eqe),
12388 bf_get_le32(lpfc_eqe_minor_code, eqe));
12392 /* Get the reference to the corresponding CQ */
12393 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
12395 /* Next check for OAS */
12396 cq = phba->sli4_hba.oas_cq;
12397 if (unlikely(!cq)) {
12398 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
12399 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12400 "9148 OAS completion queue "
12401 "does not exist\n");
12405 if (unlikely(cqid != cq->queue_id)) {
12406 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12407 "9149 Miss-matched fast-path compl "
12408 "queue id: eqcqid=%d, fcpcqid=%d\n",
12409 cqid, cq->queue_id);
12413 /* Process all the entries to the OAS CQ */
12414 while ((cqe = lpfc_sli4_cq_get(cq))) {
12415 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe);
12416 if (!(++ecount % cq->entry_repost))
12417 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
12420 /* Track the max number of CQEs processed in 1 EQ */
12421 if (ecount > cq->CQ_max_cqe)
12422 cq->CQ_max_cqe = ecount;
12424 /* Catch the no cq entry condition */
12425 if (unlikely(ecount == 0))
12426 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12427 "9153 No entry from fast-path completion "
12428 "queue fcpcqid=%d\n", cq->queue_id);
12430 /* In any case, flash and re-arm the CQ */
12431 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
12433 /* wake up worker thread if there are works to be done */
12435 lpfc_worker_wake_up(phba);
12439 * lpfc_sli4_fof_intr_handler - HBA interrupt handler to SLI-4 device
12440 * @irq: Interrupt number.
12441 * @dev_id: The device context pointer.
12443 * This function is directly called from the PCI layer as an interrupt
12444 * service routine when device with SLI-4 interface spec is enabled with
12445 * MSI-X multi-message interrupt mode and there is a Flash Optimized Fabric
12446 * IOCB ring event in the HBA. However, when the device is enabled with either
12447 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
12448 * device-level interrupt handler. When the PCI slot is in error recovery
12449 * or the HBA is undergoing initialization, the interrupt handler will not
12450 * process the interrupt. The Flash Optimized Fabric ring event are handled in
12451 * the intrrupt context. This function is called without any lock held.
12452 * It gets the hbalock to access and update SLI data structures. Note that,
12453 * the EQ to CQ are one-to-one map such that the EQ index is
12454 * equal to that of CQ index.
12456 * This function returns IRQ_HANDLED when interrupt is handled else it
12457 * returns IRQ_NONE.
12460 lpfc_sli4_fof_intr_handler(int irq, void *dev_id)
12462 struct lpfc_hba *phba;
12463 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
12464 struct lpfc_queue *eq;
12465 struct lpfc_eqe *eqe;
12466 unsigned long iflag;
12470 /* Get the driver's phba structure from the dev_id */
12471 fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id;
12472 phba = fcp_eq_hdl->phba;
12473 eqidx = fcp_eq_hdl->idx;
12475 if (unlikely(!phba))
12478 /* Get to the EQ struct associated with this vector */
12479 eq = phba->sli4_hba.fof_eq;
12483 /* Check device state for handling interrupt */
12484 if (unlikely(lpfc_intr_state_check(phba))) {
12486 /* Check again for link_state with lock held */
12487 spin_lock_irqsave(&phba->hbalock, iflag);
12488 if (phba->link_state < LPFC_LINK_DOWN)
12489 /* Flush, clear interrupt, and rearm the EQ */
12490 lpfc_sli4_eq_flush(phba, eq);
12491 spin_unlock_irqrestore(&phba->hbalock, iflag);
12496 * Process all the event on FCP fast-path EQ
12498 while ((eqe = lpfc_sli4_eq_get(eq))) {
12499 lpfc_sli4_fof_handle_eqe(phba, eqe);
12500 if (!(++ecount % eq->entry_repost))
12501 lpfc_sli4_eq_release(eq, LPFC_QUEUE_NOARM);
12502 eq->EQ_processed++;
12505 /* Track the max number of EQEs processed in 1 intr */
12506 if (ecount > eq->EQ_max_eqe)
12507 eq->EQ_max_eqe = ecount;
12510 if (unlikely(ecount == 0)) {
12513 if (phba->intr_type == MSIX)
12514 /* MSI-X treated interrupt served as no EQ share INT */
12515 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12516 "9145 MSI-X interrupt with no EQE\n");
12518 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12519 "9146 ISR interrupt with no EQE\n");
12520 /* Non MSI-X treated on interrupt as EQ share INT */
12524 /* Always clear and re-arm the fast-path EQ */
12525 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
12526 return IRQ_HANDLED;
12530 * lpfc_sli4_hba_intr_handler - HBA interrupt handler to SLI-4 device
12531 * @irq: Interrupt number.
12532 * @dev_id: The device context pointer.
12534 * This function is directly called from the PCI layer as an interrupt
12535 * service routine when device with SLI-4 interface spec is enabled with
12536 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
12537 * ring event in the HBA. However, when the device is enabled with either
12538 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
12539 * device-level interrupt handler. When the PCI slot is in error recovery
12540 * or the HBA is undergoing initialization, the interrupt handler will not
12541 * process the interrupt. The SCSI FCP fast-path ring event are handled in
12542 * the intrrupt context. This function is called without any lock held.
12543 * It gets the hbalock to access and update SLI data structures. Note that,
12544 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
12545 * equal to that of FCP CQ index.
12547 * The link attention and ELS ring attention events are handled
12548 * by the worker thread. The interrupt handler signals the worker thread
12549 * and returns for these events. This function is called without any lock
12550 * held. It gets the hbalock to access and update SLI data structures.
12552 * This function returns IRQ_HANDLED when interrupt is handled else it
12553 * returns IRQ_NONE.
12556 lpfc_sli4_hba_intr_handler(int irq, void *dev_id)
12558 struct lpfc_hba *phba;
12559 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
12560 struct lpfc_queue *fpeq;
12561 struct lpfc_eqe *eqe;
12562 unsigned long iflag;
12566 /* Get the driver's phba structure from the dev_id */
12567 fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id;
12568 phba = fcp_eq_hdl->phba;
12569 fcp_eqidx = fcp_eq_hdl->idx;
12571 if (unlikely(!phba))
12573 if (unlikely(!phba->sli4_hba.hba_eq))
12576 /* Get to the EQ struct associated with this vector */
12577 fpeq = phba->sli4_hba.hba_eq[fcp_eqidx];
12578 if (unlikely(!fpeq))
12581 if (lpfc_fcp_look_ahead) {
12582 if (atomic_dec_and_test(&fcp_eq_hdl->fcp_eq_in_use))
12583 lpfc_sli4_eq_clr_intr(fpeq);
12585 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12590 /* Check device state for handling interrupt */
12591 if (unlikely(lpfc_intr_state_check(phba))) {
12592 fpeq->EQ_badstate++;
12593 /* Check again for link_state with lock held */
12594 spin_lock_irqsave(&phba->hbalock, iflag);
12595 if (phba->link_state < LPFC_LINK_DOWN)
12596 /* Flush, clear interrupt, and rearm the EQ */
12597 lpfc_sli4_eq_flush(phba, fpeq);
12598 spin_unlock_irqrestore(&phba->hbalock, iflag);
12599 if (lpfc_fcp_look_ahead)
12600 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12605 * Process all the event on FCP fast-path EQ
12607 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
12611 lpfc_sli4_hba_handle_eqe(phba, eqe, fcp_eqidx);
12612 if (!(++ecount % fpeq->entry_repost))
12613 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM);
12614 fpeq->EQ_processed++;
12617 /* Track the max number of EQEs processed in 1 intr */
12618 if (ecount > fpeq->EQ_max_eqe)
12619 fpeq->EQ_max_eqe = ecount;
12621 /* Always clear and re-arm the fast-path EQ */
12622 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
12624 if (unlikely(ecount == 0)) {
12625 fpeq->EQ_no_entry++;
12627 if (lpfc_fcp_look_ahead) {
12628 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12632 if (phba->intr_type == MSIX)
12633 /* MSI-X treated interrupt served as no EQ share INT */
12634 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12635 "0358 MSI-X interrupt with no EQE\n");
12637 /* Non MSI-X treated on interrupt as EQ share INT */
12641 if (lpfc_fcp_look_ahead)
12642 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12643 return IRQ_HANDLED;
12644 } /* lpfc_sli4_fp_intr_handler */
12647 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
12648 * @irq: Interrupt number.
12649 * @dev_id: The device context pointer.
12651 * This function is the device-level interrupt handler to device with SLI-4
12652 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
12653 * interrupt mode is enabled and there is an event in the HBA which requires
12654 * driver attention. This function invokes the slow-path interrupt attention
12655 * handling function and fast-path interrupt attention handling function in
12656 * turn to process the relevant HBA attention events. This function is called
12657 * without any lock held. It gets the hbalock to access and update SLI data
12660 * This function returns IRQ_HANDLED when interrupt is handled, else it
12661 * returns IRQ_NONE.
12664 lpfc_sli4_intr_handler(int irq, void *dev_id)
12666 struct lpfc_hba *phba;
12667 irqreturn_t hba_irq_rc;
12668 bool hba_handled = false;
12671 /* Get the driver's phba structure from the dev_id */
12672 phba = (struct lpfc_hba *)dev_id;
12674 if (unlikely(!phba))
12678 * Invoke fast-path host attention interrupt handling as appropriate.
12680 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
12681 hba_irq_rc = lpfc_sli4_hba_intr_handler(irq,
12682 &phba->sli4_hba.fcp_eq_hdl[fcp_eqidx]);
12683 if (hba_irq_rc == IRQ_HANDLED)
12684 hba_handled |= true;
12687 if (phba->cfg_fof) {
12688 hba_irq_rc = lpfc_sli4_fof_intr_handler(irq,
12689 &phba->sli4_hba.fcp_eq_hdl[0]);
12690 if (hba_irq_rc == IRQ_HANDLED)
12691 hba_handled |= true;
12694 return (hba_handled == true) ? IRQ_HANDLED : IRQ_NONE;
12695 } /* lpfc_sli4_intr_handler */
12698 * lpfc_sli4_queue_free - free a queue structure and associated memory
12699 * @queue: The queue structure to free.
12701 * This function frees a queue structure and the DMAable memory used for
12702 * the host resident queue. This function must be called after destroying the
12703 * queue on the HBA.
12706 lpfc_sli4_queue_free(struct lpfc_queue *queue)
12708 struct lpfc_dmabuf *dmabuf;
12713 while (!list_empty(&queue->page_list)) {
12714 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
12716 dma_free_coherent(&queue->phba->pcidev->dev, SLI4_PAGE_SIZE,
12717 dmabuf->virt, dmabuf->phys);
12725 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
12726 * @phba: The HBA that this queue is being created on.
12727 * @entry_size: The size of each queue entry for this queue.
12728 * @entry count: The number of entries that this queue will handle.
12730 * This function allocates a queue structure and the DMAable memory used for
12731 * the host resident queue. This function must be called before creating the
12732 * queue on the HBA.
12734 struct lpfc_queue *
12735 lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size,
12736 uint32_t entry_count)
12738 struct lpfc_queue *queue;
12739 struct lpfc_dmabuf *dmabuf;
12740 int x, total_qe_count;
12742 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12744 if (!phba->sli4_hba.pc_sli4_params.supported)
12745 hw_page_size = SLI4_PAGE_SIZE;
12747 queue = kzalloc(sizeof(struct lpfc_queue) +
12748 (sizeof(union sli4_qe) * entry_count), GFP_KERNEL);
12751 queue->page_count = (ALIGN(entry_size * entry_count,
12752 hw_page_size))/hw_page_size;
12753 INIT_LIST_HEAD(&queue->list);
12754 INIT_LIST_HEAD(&queue->page_list);
12755 INIT_LIST_HEAD(&queue->child_list);
12756 for (x = 0, total_qe_count = 0; x < queue->page_count; x++) {
12757 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
12760 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
12761 hw_page_size, &dmabuf->phys,
12763 if (!dmabuf->virt) {
12767 dmabuf->buffer_tag = x;
12768 list_add_tail(&dmabuf->list, &queue->page_list);
12769 /* initialize queue's entry array */
12770 dma_pointer = dmabuf->virt;
12771 for (; total_qe_count < entry_count &&
12772 dma_pointer < (hw_page_size + dmabuf->virt);
12773 total_qe_count++, dma_pointer += entry_size) {
12774 queue->qe[total_qe_count].address = dma_pointer;
12777 queue->entry_size = entry_size;
12778 queue->entry_count = entry_count;
12781 * entry_repost is calculated based on the number of entries in the
12782 * queue. This works out except for RQs. If buffers are NOT initially
12783 * posted for every RQE, entry_repost should be adjusted accordingly.
12785 queue->entry_repost = (entry_count >> 3);
12786 if (queue->entry_repost < LPFC_QUEUE_MIN_REPOST)
12787 queue->entry_repost = LPFC_QUEUE_MIN_REPOST;
12788 queue->phba = phba;
12792 lpfc_sli4_queue_free(queue);
12797 * lpfc_dual_chute_pci_bar_map - Map pci base address register to host memory
12798 * @phba: HBA structure that indicates port to create a queue on.
12799 * @pci_barset: PCI BAR set flag.
12801 * This function shall perform iomap of the specified PCI BAR address to host
12802 * memory address if not already done so and return it. The returned host
12803 * memory address can be NULL.
12805 static void __iomem *
12806 lpfc_dual_chute_pci_bar_map(struct lpfc_hba *phba, uint16_t pci_barset)
12808 struct pci_dev *pdev;
12813 pdev = phba->pcidev;
12815 switch (pci_barset) {
12816 case WQ_PCI_BAR_0_AND_1:
12817 return phba->pci_bar0_memmap_p;
12818 case WQ_PCI_BAR_2_AND_3:
12819 return phba->pci_bar2_memmap_p;
12820 case WQ_PCI_BAR_4_AND_5:
12821 return phba->pci_bar4_memmap_p;
12829 * lpfc_modify_fcp_eq_delay - Modify Delay Multiplier on FCP EQs
12830 * @phba: HBA structure that indicates port to create a queue on.
12831 * @startq: The starting FCP EQ to modify
12833 * This function sends an MODIFY_EQ_DELAY mailbox command to the HBA.
12835 * The @phba struct is used to send mailbox command to HBA. The @startq
12836 * is used to get the starting FCP EQ to change.
12837 * This function is asynchronous and will wait for the mailbox
12838 * command to finish before continuing.
12840 * On success this function will return a zero. If unable to allocate enough
12841 * memory this function will return -ENOMEM. If the queue create mailbox command
12842 * fails this function will return -ENXIO.
12845 lpfc_modify_fcp_eq_delay(struct lpfc_hba *phba, uint16_t startq)
12847 struct lpfc_mbx_modify_eq_delay *eq_delay;
12848 LPFC_MBOXQ_t *mbox;
12849 struct lpfc_queue *eq;
12850 int cnt, rc, length, status = 0;
12851 uint32_t shdr_status, shdr_add_status;
12854 union lpfc_sli4_cfg_shdr *shdr;
12857 if (startq >= phba->cfg_fcp_io_channel)
12860 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12863 length = (sizeof(struct lpfc_mbx_modify_eq_delay) -
12864 sizeof(struct lpfc_sli4_cfg_mhdr));
12865 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12866 LPFC_MBOX_OPCODE_MODIFY_EQ_DELAY,
12867 length, LPFC_SLI4_MBX_EMBED);
12868 eq_delay = &mbox->u.mqe.un.eq_delay;
12870 /* Calculate delay multiper from maximum interrupt per second */
12871 result = phba->cfg_fcp_imax / phba->cfg_fcp_io_channel;
12872 if (result > LPFC_DMULT_CONST)
12875 dmult = LPFC_DMULT_CONST/result - 1;
12878 for (fcp_eqidx = startq; fcp_eqidx < phba->cfg_fcp_io_channel;
12880 eq = phba->sli4_hba.hba_eq[fcp_eqidx];
12883 eq_delay->u.request.eq[cnt].eq_id = eq->queue_id;
12884 eq_delay->u.request.eq[cnt].phase = 0;
12885 eq_delay->u.request.eq[cnt].delay_multi = dmult;
12887 if (cnt >= LPFC_MAX_EQ_DELAY)
12890 eq_delay->u.request.num_eq = cnt;
12892 mbox->vport = phba->pport;
12893 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12894 mbox->context1 = NULL;
12895 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12896 shdr = (union lpfc_sli4_cfg_shdr *) &eq_delay->header.cfg_shdr;
12897 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12898 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12899 if (shdr_status || shdr_add_status || rc) {
12900 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12901 "2512 MODIFY_EQ_DELAY mailbox failed with "
12902 "status x%x add_status x%x, mbx status x%x\n",
12903 shdr_status, shdr_add_status, rc);
12906 mempool_free(mbox, phba->mbox_mem_pool);
12911 * lpfc_eq_create - Create an Event Queue on the HBA
12912 * @phba: HBA structure that indicates port to create a queue on.
12913 * @eq: The queue structure to use to create the event queue.
12914 * @imax: The maximum interrupt per second limit.
12916 * This function creates an event queue, as detailed in @eq, on a port,
12917 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
12919 * The @phba struct is used to send mailbox command to HBA. The @eq struct
12920 * is used to get the entry count and entry size that are necessary to
12921 * determine the number of pages to allocate and use for this queue. This
12922 * function will send the EQ_CREATE mailbox command to the HBA to setup the
12923 * event queue. This function is asynchronous and will wait for the mailbox
12924 * command to finish before continuing.
12926 * On success this function will return a zero. If unable to allocate enough
12927 * memory this function will return -ENOMEM. If the queue create mailbox command
12928 * fails this function will return -ENXIO.
12931 lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint32_t imax)
12933 struct lpfc_mbx_eq_create *eq_create;
12934 LPFC_MBOXQ_t *mbox;
12935 int rc, length, status = 0;
12936 struct lpfc_dmabuf *dmabuf;
12937 uint32_t shdr_status, shdr_add_status;
12938 union lpfc_sli4_cfg_shdr *shdr;
12940 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12942 /* sanity check on queue memory */
12945 if (!phba->sli4_hba.pc_sli4_params.supported)
12946 hw_page_size = SLI4_PAGE_SIZE;
12948 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12951 length = (sizeof(struct lpfc_mbx_eq_create) -
12952 sizeof(struct lpfc_sli4_cfg_mhdr));
12953 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12954 LPFC_MBOX_OPCODE_EQ_CREATE,
12955 length, LPFC_SLI4_MBX_EMBED);
12956 eq_create = &mbox->u.mqe.un.eq_create;
12957 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
12959 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
12961 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
12962 /* Calculate delay multiper from maximum interrupt per second */
12963 if (imax > LPFC_DMULT_CONST)
12966 dmult = LPFC_DMULT_CONST/imax - 1;
12967 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
12969 switch (eq->entry_count) {
12971 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12972 "0360 Unsupported EQ count. (%d)\n",
12974 if (eq->entry_count < 256)
12976 /* otherwise default to smallest count (drop through) */
12978 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12982 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12986 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12990 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12994 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12998 list_for_each_entry(dmabuf, &eq->page_list, list) {
12999 memset(dmabuf->virt, 0, hw_page_size);
13000 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13001 putPaddrLow(dmabuf->phys);
13002 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13003 putPaddrHigh(dmabuf->phys);
13005 mbox->vport = phba->pport;
13006 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13007 mbox->context1 = NULL;
13008 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13009 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
13010 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13011 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13012 if (shdr_status || shdr_add_status || rc) {
13013 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13014 "2500 EQ_CREATE mailbox failed with "
13015 "status x%x add_status x%x, mbx status x%x\n",
13016 shdr_status, shdr_add_status, rc);
13019 eq->type = LPFC_EQ;
13020 eq->subtype = LPFC_NONE;
13021 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
13022 if (eq->queue_id == 0xFFFF)
13024 eq->host_index = 0;
13027 mempool_free(mbox, phba->mbox_mem_pool);
13032 * lpfc_cq_create - Create a Completion Queue on the HBA
13033 * @phba: HBA structure that indicates port to create a queue on.
13034 * @cq: The queue structure to use to create the completion queue.
13035 * @eq: The event queue to bind this completion queue to.
13037 * This function creates a completion queue, as detailed in @wq, on a port,
13038 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
13040 * The @phba struct is used to send mailbox command to HBA. The @cq struct
13041 * is used to get the entry count and entry size that are necessary to
13042 * determine the number of pages to allocate and use for this queue. The @eq
13043 * is used to indicate which event queue to bind this completion queue to. This
13044 * function will send the CQ_CREATE mailbox command to the HBA to setup the
13045 * completion queue. This function is asynchronous and will wait for the mailbox
13046 * command to finish before continuing.
13048 * On success this function will return a zero. If unable to allocate enough
13049 * memory this function will return -ENOMEM. If the queue create mailbox command
13050 * fails this function will return -ENXIO.
13053 lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
13054 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
13056 struct lpfc_mbx_cq_create *cq_create;
13057 struct lpfc_dmabuf *dmabuf;
13058 LPFC_MBOXQ_t *mbox;
13059 int rc, length, status = 0;
13060 uint32_t shdr_status, shdr_add_status;
13061 union lpfc_sli4_cfg_shdr *shdr;
13062 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
13064 /* sanity check on queue memory */
13067 if (!phba->sli4_hba.pc_sli4_params.supported)
13068 hw_page_size = SLI4_PAGE_SIZE;
13070 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13073 length = (sizeof(struct lpfc_mbx_cq_create) -
13074 sizeof(struct lpfc_sli4_cfg_mhdr));
13075 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13076 LPFC_MBOX_OPCODE_CQ_CREATE,
13077 length, LPFC_SLI4_MBX_EMBED);
13078 cq_create = &mbox->u.mqe.un.cq_create;
13079 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
13080 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
13082 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
13083 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
13084 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13085 phba->sli4_hba.pc_sli4_params.cqv);
13086 if (phba->sli4_hba.pc_sli4_params.cqv == LPFC_Q_CREATE_VERSION_2) {
13087 /* FW only supports 1. Should be PAGE_SIZE/SLI4_PAGE_SIZE */
13088 bf_set(lpfc_mbx_cq_create_page_size, &cq_create->u.request, 1);
13089 bf_set(lpfc_cq_eq_id_2, &cq_create->u.request.context,
13092 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context,
13095 switch (cq->entry_count) {
13097 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13098 "0361 Unsupported CQ count. (%d)\n",
13100 if (cq->entry_count < 256) {
13104 /* otherwise default to smallest count (drop through) */
13106 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
13110 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
13114 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
13118 list_for_each_entry(dmabuf, &cq->page_list, list) {
13119 memset(dmabuf->virt, 0, hw_page_size);
13120 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13121 putPaddrLow(dmabuf->phys);
13122 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13123 putPaddrHigh(dmabuf->phys);
13125 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13127 /* The IOCTL status is embedded in the mailbox subheader. */
13128 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13129 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13130 if (shdr_status || shdr_add_status || rc) {
13131 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13132 "2501 CQ_CREATE mailbox failed with "
13133 "status x%x add_status x%x, mbx status x%x\n",
13134 shdr_status, shdr_add_status, rc);
13138 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
13139 if (cq->queue_id == 0xFFFF) {
13143 /* link the cq onto the parent eq child list */
13144 list_add_tail(&cq->list, &eq->child_list);
13145 /* Set up completion queue's type and subtype */
13147 cq->subtype = subtype;
13148 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
13149 cq->assoc_qid = eq->queue_id;
13150 cq->host_index = 0;
13154 mempool_free(mbox, phba->mbox_mem_pool);
13159 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
13160 * @phba: HBA structure that indicates port to create a queue on.
13161 * @mq: The queue structure to use to create the mailbox queue.
13162 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
13163 * @cq: The completion queue to associate with this cq.
13165 * This function provides failback (fb) functionality when the
13166 * mq_create_ext fails on older FW generations. It's purpose is identical
13167 * to mq_create_ext otherwise.
13169 * This routine cannot fail as all attributes were previously accessed and
13170 * initialized in mq_create_ext.
13173 lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq,
13174 LPFC_MBOXQ_t *mbox, struct lpfc_queue *cq)
13176 struct lpfc_mbx_mq_create *mq_create;
13177 struct lpfc_dmabuf *dmabuf;
13180 length = (sizeof(struct lpfc_mbx_mq_create) -
13181 sizeof(struct lpfc_sli4_cfg_mhdr));
13182 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13183 LPFC_MBOX_OPCODE_MQ_CREATE,
13184 length, LPFC_SLI4_MBX_EMBED);
13185 mq_create = &mbox->u.mqe.un.mq_create;
13186 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
13188 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
13190 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
13191 switch (mq->entry_count) {
13193 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
13194 LPFC_MQ_RING_SIZE_16);
13197 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
13198 LPFC_MQ_RING_SIZE_32);
13201 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
13202 LPFC_MQ_RING_SIZE_64);
13205 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
13206 LPFC_MQ_RING_SIZE_128);
13209 list_for_each_entry(dmabuf, &mq->page_list, list) {
13210 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13211 putPaddrLow(dmabuf->phys);
13212 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13213 putPaddrHigh(dmabuf->phys);
13218 * lpfc_mq_create - Create a mailbox Queue on the HBA
13219 * @phba: HBA structure that indicates port to create a queue on.
13220 * @mq: The queue structure to use to create the mailbox queue.
13221 * @cq: The completion queue to associate with this cq.
13222 * @subtype: The queue's subtype.
13224 * This function creates a mailbox queue, as detailed in @mq, on a port,
13225 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
13227 * The @phba struct is used to send mailbox command to HBA. The @cq struct
13228 * is used to get the entry count and entry size that are necessary to
13229 * determine the number of pages to allocate and use for this queue. This
13230 * function will send the MQ_CREATE mailbox command to the HBA to setup the
13231 * mailbox queue. This function is asynchronous and will wait for the mailbox
13232 * command to finish before continuing.
13234 * On success this function will return a zero. If unable to allocate enough
13235 * memory this function will return -ENOMEM. If the queue create mailbox command
13236 * fails this function will return -ENXIO.
13239 lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
13240 struct lpfc_queue *cq, uint32_t subtype)
13242 struct lpfc_mbx_mq_create *mq_create;
13243 struct lpfc_mbx_mq_create_ext *mq_create_ext;
13244 struct lpfc_dmabuf *dmabuf;
13245 LPFC_MBOXQ_t *mbox;
13246 int rc, length, status = 0;
13247 uint32_t shdr_status, shdr_add_status;
13248 union lpfc_sli4_cfg_shdr *shdr;
13249 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
13251 /* sanity check on queue memory */
13254 if (!phba->sli4_hba.pc_sli4_params.supported)
13255 hw_page_size = SLI4_PAGE_SIZE;
13257 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13260 length = (sizeof(struct lpfc_mbx_mq_create_ext) -
13261 sizeof(struct lpfc_sli4_cfg_mhdr));
13262 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13263 LPFC_MBOX_OPCODE_MQ_CREATE_EXT,
13264 length, LPFC_SLI4_MBX_EMBED);
13266 mq_create_ext = &mbox->u.mqe.un.mq_create_ext;
13267 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr;
13268 bf_set(lpfc_mbx_mq_create_ext_num_pages,
13269 &mq_create_ext->u.request, mq->page_count);
13270 bf_set(lpfc_mbx_mq_create_ext_async_evt_link,
13271 &mq_create_ext->u.request, 1);
13272 bf_set(lpfc_mbx_mq_create_ext_async_evt_fip,
13273 &mq_create_ext->u.request, 1);
13274 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5,
13275 &mq_create_ext->u.request, 1);
13276 bf_set(lpfc_mbx_mq_create_ext_async_evt_fc,
13277 &mq_create_ext->u.request, 1);
13278 bf_set(lpfc_mbx_mq_create_ext_async_evt_sli,
13279 &mq_create_ext->u.request, 1);
13280 bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1);
13281 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13282 phba->sli4_hba.pc_sli4_params.mqv);
13283 if (phba->sli4_hba.pc_sli4_params.mqv == LPFC_Q_CREATE_VERSION_1)
13284 bf_set(lpfc_mbx_mq_create_ext_cq_id, &mq_create_ext->u.request,
13287 bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context,
13289 switch (mq->entry_count) {
13291 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13292 "0362 Unsupported MQ count. (%d)\n",
13294 if (mq->entry_count < 16) {
13298 /* otherwise default to smallest count (drop through) */
13300 bf_set(lpfc_mq_context_ring_size,
13301 &mq_create_ext->u.request.context,
13302 LPFC_MQ_RING_SIZE_16);
13305 bf_set(lpfc_mq_context_ring_size,
13306 &mq_create_ext->u.request.context,
13307 LPFC_MQ_RING_SIZE_32);
13310 bf_set(lpfc_mq_context_ring_size,
13311 &mq_create_ext->u.request.context,
13312 LPFC_MQ_RING_SIZE_64);
13315 bf_set(lpfc_mq_context_ring_size,
13316 &mq_create_ext->u.request.context,
13317 LPFC_MQ_RING_SIZE_128);
13320 list_for_each_entry(dmabuf, &mq->page_list, list) {
13321 memset(dmabuf->virt, 0, hw_page_size);
13322 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_lo =
13323 putPaddrLow(dmabuf->phys);
13324 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_hi =
13325 putPaddrHigh(dmabuf->phys);
13327 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13328 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
13329 &mq_create_ext->u.response);
13330 if (rc != MBX_SUCCESS) {
13331 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13332 "2795 MQ_CREATE_EXT failed with "
13333 "status x%x. Failback to MQ_CREATE.\n",
13335 lpfc_mq_create_fb_init(phba, mq, mbox, cq);
13336 mq_create = &mbox->u.mqe.un.mq_create;
13337 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13338 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
13339 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
13340 &mq_create->u.response);
13343 /* The IOCTL status is embedded in the mailbox subheader. */
13344 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13345 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13346 if (shdr_status || shdr_add_status || rc) {
13347 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13348 "2502 MQ_CREATE mailbox failed with "
13349 "status x%x add_status x%x, mbx status x%x\n",
13350 shdr_status, shdr_add_status, rc);
13354 if (mq->queue_id == 0xFFFF) {
13358 mq->type = LPFC_MQ;
13359 mq->assoc_qid = cq->queue_id;
13360 mq->subtype = subtype;
13361 mq->host_index = 0;
13364 /* link the mq onto the parent cq child list */
13365 list_add_tail(&mq->list, &cq->child_list);
13367 mempool_free(mbox, phba->mbox_mem_pool);
13372 * lpfc_wq_create - Create a Work Queue on the HBA
13373 * @phba: HBA structure that indicates port to create a queue on.
13374 * @wq: The queue structure to use to create the work queue.
13375 * @cq: The completion queue to bind this work queue to.
13376 * @subtype: The subtype of the work queue indicating its functionality.
13378 * This function creates a work queue, as detailed in @wq, on a port, described
13379 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
13381 * The @phba struct is used to send mailbox command to HBA. The @wq struct
13382 * is used to get the entry count and entry size that are necessary to
13383 * determine the number of pages to allocate and use for this queue. The @cq
13384 * is used to indicate which completion queue to bind this work queue to. This
13385 * function will send the WQ_CREATE mailbox command to the HBA to setup the
13386 * work queue. This function is asynchronous and will wait for the mailbox
13387 * command to finish before continuing.
13389 * On success this function will return a zero. If unable to allocate enough
13390 * memory this function will return -ENOMEM. If the queue create mailbox command
13391 * fails this function will return -ENXIO.
13394 lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
13395 struct lpfc_queue *cq, uint32_t subtype)
13397 struct lpfc_mbx_wq_create *wq_create;
13398 struct lpfc_dmabuf *dmabuf;
13399 LPFC_MBOXQ_t *mbox;
13400 int rc, length, status = 0;
13401 uint32_t shdr_status, shdr_add_status;
13402 union lpfc_sli4_cfg_shdr *shdr;
13403 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
13404 struct dma_address *page;
13405 void __iomem *bar_memmap_p;
13406 uint32_t db_offset;
13407 uint16_t pci_barset;
13409 /* sanity check on queue memory */
13412 if (!phba->sli4_hba.pc_sli4_params.supported)
13413 hw_page_size = SLI4_PAGE_SIZE;
13415 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13418 length = (sizeof(struct lpfc_mbx_wq_create) -
13419 sizeof(struct lpfc_sli4_cfg_mhdr));
13420 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13421 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
13422 length, LPFC_SLI4_MBX_EMBED);
13423 wq_create = &mbox->u.mqe.un.wq_create;
13424 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
13425 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
13427 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
13430 /* wqv is the earliest version supported, NOT the latest */
13431 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13432 phba->sli4_hba.pc_sli4_params.wqv);
13434 switch (phba->sli4_hba.pc_sli4_params.wqv) {
13435 case LPFC_Q_CREATE_VERSION_0:
13436 switch (wq->entry_size) {
13439 /* Nothing to do, version 0 ONLY supports 64 byte */
13440 page = wq_create->u.request.page;
13443 if (!(phba->sli4_hba.pc_sli4_params.wqsize &
13444 LPFC_WQ_SZ128_SUPPORT)) {
13448 /* If we get here the HBA MUST also support V1 and
13451 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13452 LPFC_Q_CREATE_VERSION_1);
13454 bf_set(lpfc_mbx_wq_create_wqe_count,
13455 &wq_create->u.request_1, wq->entry_count);
13456 bf_set(lpfc_mbx_wq_create_wqe_size,
13457 &wq_create->u.request_1,
13458 LPFC_WQ_WQE_SIZE_128);
13459 bf_set(lpfc_mbx_wq_create_page_size,
13460 &wq_create->u.request_1,
13461 (PAGE_SIZE/SLI4_PAGE_SIZE));
13462 page = wq_create->u.request_1.page;
13466 case LPFC_Q_CREATE_VERSION_1:
13467 bf_set(lpfc_mbx_wq_create_wqe_count, &wq_create->u.request_1,
13469 switch (wq->entry_size) {
13472 bf_set(lpfc_mbx_wq_create_wqe_size,
13473 &wq_create->u.request_1,
13474 LPFC_WQ_WQE_SIZE_64);
13477 if (!(phba->sli4_hba.pc_sli4_params.wqsize &
13478 LPFC_WQ_SZ128_SUPPORT)) {
13482 bf_set(lpfc_mbx_wq_create_wqe_size,
13483 &wq_create->u.request_1,
13484 LPFC_WQ_WQE_SIZE_128);
13487 bf_set(lpfc_mbx_wq_create_page_size, &wq_create->u.request_1,
13488 (PAGE_SIZE/SLI4_PAGE_SIZE));
13489 page = wq_create->u.request_1.page;
13496 list_for_each_entry(dmabuf, &wq->page_list, list) {
13497 memset(dmabuf->virt, 0, hw_page_size);
13498 page[dmabuf->buffer_tag].addr_lo = putPaddrLow(dmabuf->phys);
13499 page[dmabuf->buffer_tag].addr_hi = putPaddrHigh(dmabuf->phys);
13502 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
13503 bf_set(lpfc_mbx_wq_create_dua, &wq_create->u.request, 1);
13505 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13506 /* The IOCTL status is embedded in the mailbox subheader. */
13507 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13508 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13509 if (shdr_status || shdr_add_status || rc) {
13510 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13511 "2503 WQ_CREATE mailbox failed with "
13512 "status x%x add_status x%x, mbx status x%x\n",
13513 shdr_status, shdr_add_status, rc);
13517 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response);
13518 if (wq->queue_id == 0xFFFF) {
13522 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
13523 wq->db_format = bf_get(lpfc_mbx_wq_create_db_format,
13524 &wq_create->u.response);
13525 if ((wq->db_format != LPFC_DB_LIST_FORMAT) &&
13526 (wq->db_format != LPFC_DB_RING_FORMAT)) {
13527 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13528 "3265 WQ[%d] doorbell format not "
13529 "supported: x%x\n", wq->queue_id,
13534 pci_barset = bf_get(lpfc_mbx_wq_create_bar_set,
13535 &wq_create->u.response);
13536 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
13537 if (!bar_memmap_p) {
13538 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13539 "3263 WQ[%d] failed to memmap pci "
13540 "barset:x%x\n", wq->queue_id,
13545 db_offset = wq_create->u.response.doorbell_offset;
13546 if ((db_offset != LPFC_ULP0_WQ_DOORBELL) &&
13547 (db_offset != LPFC_ULP1_WQ_DOORBELL)) {
13548 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13549 "3252 WQ[%d] doorbell offset not "
13550 "supported: x%x\n", wq->queue_id,
13555 wq->db_regaddr = bar_memmap_p + db_offset;
13556 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13557 "3264 WQ[%d]: barset:x%x, offset:x%x, "
13558 "format:x%x\n", wq->queue_id, pci_barset,
13559 db_offset, wq->db_format);
13561 wq->db_format = LPFC_DB_LIST_FORMAT;
13562 wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
13564 wq->type = LPFC_WQ;
13565 wq->assoc_qid = cq->queue_id;
13566 wq->subtype = subtype;
13567 wq->host_index = 0;
13569 wq->entry_repost = LPFC_RELEASE_NOTIFICATION_INTERVAL;
13571 /* link the wq onto the parent cq child list */
13572 list_add_tail(&wq->list, &cq->child_list);
13574 mempool_free(mbox, phba->mbox_mem_pool);
13579 * lpfc_rq_adjust_repost - Adjust entry_repost for an RQ
13580 * @phba: HBA structure that indicates port to create a queue on.
13581 * @rq: The queue structure to use for the receive queue.
13582 * @qno: The associated HBQ number
13585 * For SLI4 we need to adjust the RQ repost value based on
13586 * the number of buffers that are initially posted to the RQ.
13589 lpfc_rq_adjust_repost(struct lpfc_hba *phba, struct lpfc_queue *rq, int qno)
13593 /* sanity check on queue memory */
13596 cnt = lpfc_hbq_defs[qno]->entry_count;
13598 /* Recalc repost for RQs based on buffers initially posted */
13600 if (cnt < LPFC_QUEUE_MIN_REPOST)
13601 cnt = LPFC_QUEUE_MIN_REPOST;
13603 rq->entry_repost = cnt;
13607 * lpfc_rq_create - Create a Receive Queue on the HBA
13608 * @phba: HBA structure that indicates port to create a queue on.
13609 * @hrq: The queue structure to use to create the header receive queue.
13610 * @drq: The queue structure to use to create the data receive queue.
13611 * @cq: The completion queue to bind this work queue to.
13613 * This function creates a receive buffer queue pair , as detailed in @hrq and
13614 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
13617 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
13618 * struct is used to get the entry count that is necessary to determine the
13619 * number of pages to use for this queue. The @cq is used to indicate which
13620 * completion queue to bind received buffers that are posted to these queues to.
13621 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
13622 * receive queue pair. This function is asynchronous and will wait for the
13623 * mailbox command to finish before continuing.
13625 * On success this function will return a zero. If unable to allocate enough
13626 * memory this function will return -ENOMEM. If the queue create mailbox command
13627 * fails this function will return -ENXIO.
13630 lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
13631 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
13633 struct lpfc_mbx_rq_create *rq_create;
13634 struct lpfc_dmabuf *dmabuf;
13635 LPFC_MBOXQ_t *mbox;
13636 int rc, length, status = 0;
13637 uint32_t shdr_status, shdr_add_status;
13638 union lpfc_sli4_cfg_shdr *shdr;
13639 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
13640 void __iomem *bar_memmap_p;
13641 uint32_t db_offset;
13642 uint16_t pci_barset;
13644 /* sanity check on queue memory */
13645 if (!hrq || !drq || !cq)
13647 if (!phba->sli4_hba.pc_sli4_params.supported)
13648 hw_page_size = SLI4_PAGE_SIZE;
13650 if (hrq->entry_count != drq->entry_count)
13652 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13655 length = (sizeof(struct lpfc_mbx_rq_create) -
13656 sizeof(struct lpfc_sli4_cfg_mhdr));
13657 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13658 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
13659 length, LPFC_SLI4_MBX_EMBED);
13660 rq_create = &mbox->u.mqe.un.rq_create;
13661 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
13662 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13663 phba->sli4_hba.pc_sli4_params.rqv);
13664 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
13665 bf_set(lpfc_rq_context_rqe_count_1,
13666 &rq_create->u.request.context,
13668 rq_create->u.request.context.buffer_size = LPFC_HDR_BUF_SIZE;
13669 bf_set(lpfc_rq_context_rqe_size,
13670 &rq_create->u.request.context,
13672 bf_set(lpfc_rq_context_page_size,
13673 &rq_create->u.request.context,
13674 (PAGE_SIZE/SLI4_PAGE_SIZE));
13676 switch (hrq->entry_count) {
13678 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13679 "2535 Unsupported RQ count. (%d)\n",
13681 if (hrq->entry_count < 512) {
13685 /* otherwise default to smallest count (drop through) */
13687 bf_set(lpfc_rq_context_rqe_count,
13688 &rq_create->u.request.context,
13689 LPFC_RQ_RING_SIZE_512);
13692 bf_set(lpfc_rq_context_rqe_count,
13693 &rq_create->u.request.context,
13694 LPFC_RQ_RING_SIZE_1024);
13697 bf_set(lpfc_rq_context_rqe_count,
13698 &rq_create->u.request.context,
13699 LPFC_RQ_RING_SIZE_2048);
13702 bf_set(lpfc_rq_context_rqe_count,
13703 &rq_create->u.request.context,
13704 LPFC_RQ_RING_SIZE_4096);
13707 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
13708 LPFC_HDR_BUF_SIZE);
13710 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
13712 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
13714 list_for_each_entry(dmabuf, &hrq->page_list, list) {
13715 memset(dmabuf->virt, 0, hw_page_size);
13716 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13717 putPaddrLow(dmabuf->phys);
13718 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13719 putPaddrHigh(dmabuf->phys);
13721 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
13722 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
13724 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13725 /* The IOCTL status is embedded in the mailbox subheader. */
13726 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13727 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13728 if (shdr_status || shdr_add_status || rc) {
13729 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13730 "2504 RQ_CREATE mailbox failed with "
13731 "status x%x add_status x%x, mbx status x%x\n",
13732 shdr_status, shdr_add_status, rc);
13736 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
13737 if (hrq->queue_id == 0xFFFF) {
13742 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
13743 hrq->db_format = bf_get(lpfc_mbx_rq_create_db_format,
13744 &rq_create->u.response);
13745 if ((hrq->db_format != LPFC_DB_LIST_FORMAT) &&
13746 (hrq->db_format != LPFC_DB_RING_FORMAT)) {
13747 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13748 "3262 RQ [%d] doorbell format not "
13749 "supported: x%x\n", hrq->queue_id,
13755 pci_barset = bf_get(lpfc_mbx_rq_create_bar_set,
13756 &rq_create->u.response);
13757 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
13758 if (!bar_memmap_p) {
13759 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13760 "3269 RQ[%d] failed to memmap pci "
13761 "barset:x%x\n", hrq->queue_id,
13767 db_offset = rq_create->u.response.doorbell_offset;
13768 if ((db_offset != LPFC_ULP0_RQ_DOORBELL) &&
13769 (db_offset != LPFC_ULP1_RQ_DOORBELL)) {
13770 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13771 "3270 RQ[%d] doorbell offset not "
13772 "supported: x%x\n", hrq->queue_id,
13777 hrq->db_regaddr = bar_memmap_p + db_offset;
13778 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13779 "3266 RQ[qid:%d]: barset:x%x, offset:x%x, "
13780 "format:x%x\n", hrq->queue_id, pci_barset,
13781 db_offset, hrq->db_format);
13783 hrq->db_format = LPFC_DB_RING_FORMAT;
13784 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
13786 hrq->type = LPFC_HRQ;
13787 hrq->assoc_qid = cq->queue_id;
13788 hrq->subtype = subtype;
13789 hrq->host_index = 0;
13790 hrq->hba_index = 0;
13792 /* now create the data queue */
13793 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13794 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
13795 length, LPFC_SLI4_MBX_EMBED);
13796 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13797 phba->sli4_hba.pc_sli4_params.rqv);
13798 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
13799 bf_set(lpfc_rq_context_rqe_count_1,
13800 &rq_create->u.request.context, hrq->entry_count);
13801 rq_create->u.request.context.buffer_size = LPFC_DATA_BUF_SIZE;
13802 bf_set(lpfc_rq_context_rqe_size, &rq_create->u.request.context,
13804 bf_set(lpfc_rq_context_page_size, &rq_create->u.request.context,
13805 (PAGE_SIZE/SLI4_PAGE_SIZE));
13807 switch (drq->entry_count) {
13809 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13810 "2536 Unsupported RQ count. (%d)\n",
13812 if (drq->entry_count < 512) {
13816 /* otherwise default to smallest count (drop through) */
13818 bf_set(lpfc_rq_context_rqe_count,
13819 &rq_create->u.request.context,
13820 LPFC_RQ_RING_SIZE_512);
13823 bf_set(lpfc_rq_context_rqe_count,
13824 &rq_create->u.request.context,
13825 LPFC_RQ_RING_SIZE_1024);
13828 bf_set(lpfc_rq_context_rqe_count,
13829 &rq_create->u.request.context,
13830 LPFC_RQ_RING_SIZE_2048);
13833 bf_set(lpfc_rq_context_rqe_count,
13834 &rq_create->u.request.context,
13835 LPFC_RQ_RING_SIZE_4096);
13838 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
13839 LPFC_DATA_BUF_SIZE);
13841 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
13843 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
13845 list_for_each_entry(dmabuf, &drq->page_list, list) {
13846 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13847 putPaddrLow(dmabuf->phys);
13848 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13849 putPaddrHigh(dmabuf->phys);
13851 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
13852 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
13853 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13854 /* The IOCTL status is embedded in the mailbox subheader. */
13855 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
13856 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13857 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13858 if (shdr_status || shdr_add_status || rc) {
13862 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
13863 if (drq->queue_id == 0xFFFF) {
13867 drq->type = LPFC_DRQ;
13868 drq->assoc_qid = cq->queue_id;
13869 drq->subtype = subtype;
13870 drq->host_index = 0;
13871 drq->hba_index = 0;
13873 /* link the header and data RQs onto the parent cq child list */
13874 list_add_tail(&hrq->list, &cq->child_list);
13875 list_add_tail(&drq->list, &cq->child_list);
13878 mempool_free(mbox, phba->mbox_mem_pool);
13883 * lpfc_eq_destroy - Destroy an event Queue on the HBA
13884 * @eq: The queue structure associated with the queue to destroy.
13886 * This function destroys a queue, as detailed in @eq by sending an mailbox
13887 * command, specific to the type of queue, to the HBA.
13889 * The @eq struct is used to get the queue ID of the queue to destroy.
13891 * On success this function will return a zero. If the queue destroy mailbox
13892 * command fails this function will return -ENXIO.
13895 lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
13897 LPFC_MBOXQ_t *mbox;
13898 int rc, length, status = 0;
13899 uint32_t shdr_status, shdr_add_status;
13900 union lpfc_sli4_cfg_shdr *shdr;
13902 /* sanity check on queue memory */
13905 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
13908 length = (sizeof(struct lpfc_mbx_eq_destroy) -
13909 sizeof(struct lpfc_sli4_cfg_mhdr));
13910 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13911 LPFC_MBOX_OPCODE_EQ_DESTROY,
13912 length, LPFC_SLI4_MBX_EMBED);
13913 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
13915 mbox->vport = eq->phba->pport;
13916 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13918 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
13919 /* The IOCTL status is embedded in the mailbox subheader. */
13920 shdr = (union lpfc_sli4_cfg_shdr *)
13921 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
13922 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13923 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13924 if (shdr_status || shdr_add_status || rc) {
13925 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13926 "2505 EQ_DESTROY mailbox failed with "
13927 "status x%x add_status x%x, mbx status x%x\n",
13928 shdr_status, shdr_add_status, rc);
13932 /* Remove eq from any list */
13933 list_del_init(&eq->list);
13934 mempool_free(mbox, eq->phba->mbox_mem_pool);
13939 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
13940 * @cq: The queue structure associated with the queue to destroy.
13942 * This function destroys a queue, as detailed in @cq by sending an mailbox
13943 * command, specific to the type of queue, to the HBA.
13945 * The @cq struct is used to get the queue ID of the queue to destroy.
13947 * On success this function will return a zero. If the queue destroy mailbox
13948 * command fails this function will return -ENXIO.
13951 lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
13953 LPFC_MBOXQ_t *mbox;
13954 int rc, length, status = 0;
13955 uint32_t shdr_status, shdr_add_status;
13956 union lpfc_sli4_cfg_shdr *shdr;
13958 /* sanity check on queue memory */
13961 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
13964 length = (sizeof(struct lpfc_mbx_cq_destroy) -
13965 sizeof(struct lpfc_sli4_cfg_mhdr));
13966 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13967 LPFC_MBOX_OPCODE_CQ_DESTROY,
13968 length, LPFC_SLI4_MBX_EMBED);
13969 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
13971 mbox->vport = cq->phba->pport;
13972 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13973 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
13974 /* The IOCTL status is embedded in the mailbox subheader. */
13975 shdr = (union lpfc_sli4_cfg_shdr *)
13976 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
13977 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13978 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13979 if (shdr_status || shdr_add_status || rc) {
13980 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13981 "2506 CQ_DESTROY mailbox failed with "
13982 "status x%x add_status x%x, mbx status x%x\n",
13983 shdr_status, shdr_add_status, rc);
13986 /* Remove cq from any list */
13987 list_del_init(&cq->list);
13988 mempool_free(mbox, cq->phba->mbox_mem_pool);
13993 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
13994 * @qm: The queue structure associated with the queue to destroy.
13996 * This function destroys a queue, as detailed in @mq by sending an mailbox
13997 * command, specific to the type of queue, to the HBA.
13999 * The @mq struct is used to get the queue ID of the queue to destroy.
14001 * On success this function will return a zero. If the queue destroy mailbox
14002 * command fails this function will return -ENXIO.
14005 lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
14007 LPFC_MBOXQ_t *mbox;
14008 int rc, length, status = 0;
14009 uint32_t shdr_status, shdr_add_status;
14010 union lpfc_sli4_cfg_shdr *shdr;
14012 /* sanity check on queue memory */
14015 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
14018 length = (sizeof(struct lpfc_mbx_mq_destroy) -
14019 sizeof(struct lpfc_sli4_cfg_mhdr));
14020 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14021 LPFC_MBOX_OPCODE_MQ_DESTROY,
14022 length, LPFC_SLI4_MBX_EMBED);
14023 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
14025 mbox->vport = mq->phba->pport;
14026 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14027 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
14028 /* The IOCTL status is embedded in the mailbox subheader. */
14029 shdr = (union lpfc_sli4_cfg_shdr *)
14030 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
14031 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14032 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14033 if (shdr_status || shdr_add_status || rc) {
14034 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14035 "2507 MQ_DESTROY mailbox failed with "
14036 "status x%x add_status x%x, mbx status x%x\n",
14037 shdr_status, shdr_add_status, rc);
14040 /* Remove mq from any list */
14041 list_del_init(&mq->list);
14042 mempool_free(mbox, mq->phba->mbox_mem_pool);
14047 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
14048 * @wq: The queue structure associated with the queue to destroy.
14050 * This function destroys a queue, as detailed in @wq by sending an mailbox
14051 * command, specific to the type of queue, to the HBA.
14053 * The @wq struct is used to get the queue ID of the queue to destroy.
14055 * On success this function will return a zero. If the queue destroy mailbox
14056 * command fails this function will return -ENXIO.
14059 lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
14061 LPFC_MBOXQ_t *mbox;
14062 int rc, length, status = 0;
14063 uint32_t shdr_status, shdr_add_status;
14064 union lpfc_sli4_cfg_shdr *shdr;
14066 /* sanity check on queue memory */
14069 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
14072 length = (sizeof(struct lpfc_mbx_wq_destroy) -
14073 sizeof(struct lpfc_sli4_cfg_mhdr));
14074 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14075 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
14076 length, LPFC_SLI4_MBX_EMBED);
14077 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
14079 mbox->vport = wq->phba->pport;
14080 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14081 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
14082 shdr = (union lpfc_sli4_cfg_shdr *)
14083 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
14084 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14085 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14086 if (shdr_status || shdr_add_status || rc) {
14087 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14088 "2508 WQ_DESTROY mailbox failed with "
14089 "status x%x add_status x%x, mbx status x%x\n",
14090 shdr_status, shdr_add_status, rc);
14093 /* Remove wq from any list */
14094 list_del_init(&wq->list);
14095 mempool_free(mbox, wq->phba->mbox_mem_pool);
14100 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
14101 * @rq: The queue structure associated with the queue to destroy.
14103 * This function destroys a queue, as detailed in @rq by sending an mailbox
14104 * command, specific to the type of queue, to the HBA.
14106 * The @rq struct is used to get the queue ID of the queue to destroy.
14108 * On success this function will return a zero. If the queue destroy mailbox
14109 * command fails this function will return -ENXIO.
14112 lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
14113 struct lpfc_queue *drq)
14115 LPFC_MBOXQ_t *mbox;
14116 int rc, length, status = 0;
14117 uint32_t shdr_status, shdr_add_status;
14118 union lpfc_sli4_cfg_shdr *shdr;
14120 /* sanity check on queue memory */
14123 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
14126 length = (sizeof(struct lpfc_mbx_rq_destroy) -
14127 sizeof(struct lpfc_sli4_cfg_mhdr));
14128 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14129 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
14130 length, LPFC_SLI4_MBX_EMBED);
14131 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
14133 mbox->vport = hrq->phba->pport;
14134 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14135 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
14136 /* The IOCTL status is embedded in the mailbox subheader. */
14137 shdr = (union lpfc_sli4_cfg_shdr *)
14138 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
14139 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14140 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14141 if (shdr_status || shdr_add_status || rc) {
14142 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14143 "2509 RQ_DESTROY mailbox failed with "
14144 "status x%x add_status x%x, mbx status x%x\n",
14145 shdr_status, shdr_add_status, rc);
14146 if (rc != MBX_TIMEOUT)
14147 mempool_free(mbox, hrq->phba->mbox_mem_pool);
14150 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
14152 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
14153 shdr = (union lpfc_sli4_cfg_shdr *)
14154 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
14155 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14156 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14157 if (shdr_status || shdr_add_status || rc) {
14158 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14159 "2510 RQ_DESTROY mailbox failed with "
14160 "status x%x add_status x%x, mbx status x%x\n",
14161 shdr_status, shdr_add_status, rc);
14164 list_del_init(&hrq->list);
14165 list_del_init(&drq->list);
14166 mempool_free(mbox, hrq->phba->mbox_mem_pool);
14171 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
14172 * @phba: The virtual port for which this call being executed.
14173 * @pdma_phys_addr0: Physical address of the 1st SGL page.
14174 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
14175 * @xritag: the xritag that ties this io to the SGL pages.
14177 * This routine will post the sgl pages for the IO that has the xritag
14178 * that is in the iocbq structure. The xritag is assigned during iocbq
14179 * creation and persists for as long as the driver is loaded.
14180 * if the caller has fewer than 256 scatter gather segments to map then
14181 * pdma_phys_addr1 should be 0.
14182 * If the caller needs to map more than 256 scatter gather segment then
14183 * pdma_phys_addr1 should be a valid physical address.
14184 * physical address for SGLs must be 64 byte aligned.
14185 * If you are going to map 2 SGL's then the first one must have 256 entries
14186 * the second sgl can have between 1 and 256 entries.
14190 * -ENXIO, -ENOMEM - Failure
14193 lpfc_sli4_post_sgl(struct lpfc_hba *phba,
14194 dma_addr_t pdma_phys_addr0,
14195 dma_addr_t pdma_phys_addr1,
14198 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
14199 LPFC_MBOXQ_t *mbox;
14201 uint32_t shdr_status, shdr_add_status;
14203 union lpfc_sli4_cfg_shdr *shdr;
14205 if (xritag == NO_XRI) {
14206 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14207 "0364 Invalid param:\n");
14211 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14215 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14216 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
14217 sizeof(struct lpfc_mbx_post_sgl_pages) -
14218 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
14220 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
14221 &mbox->u.mqe.un.post_sgl_pages;
14222 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
14223 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
14225 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
14226 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
14227 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
14228 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
14230 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
14231 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
14232 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
14233 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
14234 if (!phba->sli4_hba.intr_enable)
14235 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14237 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
14238 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
14240 /* The IOCTL status is embedded in the mailbox subheader. */
14241 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
14242 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14243 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14244 if (rc != MBX_TIMEOUT)
14245 mempool_free(mbox, phba->mbox_mem_pool);
14246 if (shdr_status || shdr_add_status || rc) {
14247 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14248 "2511 POST_SGL mailbox failed with "
14249 "status x%x add_status x%x, mbx status x%x\n",
14250 shdr_status, shdr_add_status, rc);
14256 * lpfc_sli4_alloc_xri - Get an available rpi in the device's range
14257 * @phba: pointer to lpfc hba data structure.
14259 * This routine is invoked to post rpi header templates to the
14260 * HBA consistent with the SLI-4 interface spec. This routine
14261 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
14262 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
14265 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
14266 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
14269 lpfc_sli4_alloc_xri(struct lpfc_hba *phba)
14274 * Fetch the next logical xri. Because this index is logical,
14275 * the driver starts at 0 each time.
14277 spin_lock_irq(&phba->hbalock);
14278 xri = find_next_zero_bit(phba->sli4_hba.xri_bmask,
14279 phba->sli4_hba.max_cfg_param.max_xri, 0);
14280 if (xri >= phba->sli4_hba.max_cfg_param.max_xri) {
14281 spin_unlock_irq(&phba->hbalock);
14284 set_bit(xri, phba->sli4_hba.xri_bmask);
14285 phba->sli4_hba.max_cfg_param.xri_used++;
14287 spin_unlock_irq(&phba->hbalock);
14292 * lpfc_sli4_free_xri - Release an xri for reuse.
14293 * @phba: pointer to lpfc hba data structure.
14295 * This routine is invoked to release an xri to the pool of
14296 * available rpis maintained by the driver.
14299 __lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
14301 if (test_and_clear_bit(xri, phba->sli4_hba.xri_bmask)) {
14302 phba->sli4_hba.max_cfg_param.xri_used--;
14307 * lpfc_sli4_free_xri - Release an xri for reuse.
14308 * @phba: pointer to lpfc hba data structure.
14310 * This routine is invoked to release an xri to the pool of
14311 * available rpis maintained by the driver.
14314 lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
14316 spin_lock_irq(&phba->hbalock);
14317 __lpfc_sli4_free_xri(phba, xri);
14318 spin_unlock_irq(&phba->hbalock);
14322 * lpfc_sli4_next_xritag - Get an xritag for the io
14323 * @phba: Pointer to HBA context object.
14325 * This function gets an xritag for the iocb. If there is no unused xritag
14326 * it will return 0xffff.
14327 * The function returns the allocated xritag if successful, else returns zero.
14328 * Zero is not a valid xritag.
14329 * The caller is not required to hold any lock.
14332 lpfc_sli4_next_xritag(struct lpfc_hba *phba)
14334 uint16_t xri_index;
14336 xri_index = lpfc_sli4_alloc_xri(phba);
14337 if (xri_index == NO_XRI)
14338 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
14339 "2004 Failed to allocate XRI.last XRITAG is %d"
14340 " Max XRI is %d, Used XRI is %d\n",
14342 phba->sli4_hba.max_cfg_param.max_xri,
14343 phba->sli4_hba.max_cfg_param.xri_used);
14348 * lpfc_sli4_post_els_sgl_list - post a block of ELS sgls to the port.
14349 * @phba: pointer to lpfc hba data structure.
14350 * @post_sgl_list: pointer to els sgl entry list.
14351 * @count: number of els sgl entries on the list.
14353 * This routine is invoked to post a block of driver's sgl pages to the
14354 * HBA using non-embedded mailbox command. No Lock is held. This routine
14355 * is only called when the driver is loading and after all IO has been
14359 lpfc_sli4_post_els_sgl_list(struct lpfc_hba *phba,
14360 struct list_head *post_sgl_list,
14363 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
14364 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
14365 struct sgl_page_pairs *sgl_pg_pairs;
14367 LPFC_MBOXQ_t *mbox;
14368 uint32_t reqlen, alloclen, pg_pairs;
14370 uint16_t xritag_start = 0;
14372 uint32_t shdr_status, shdr_add_status;
14373 union lpfc_sli4_cfg_shdr *shdr;
14375 reqlen = phba->sli4_hba.els_xri_cnt * sizeof(struct sgl_page_pairs) +
14376 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
14377 if (reqlen > SLI4_PAGE_SIZE) {
14378 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
14379 "2559 Block sgl registration required DMA "
14380 "size (%d) great than a page\n", reqlen);
14383 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14387 /* Allocate DMA memory and set up the non-embedded mailbox command */
14388 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14389 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
14390 LPFC_SLI4_MBX_NEMBED);
14392 if (alloclen < reqlen) {
14393 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14394 "0285 Allocated DMA memory size (%d) is "
14395 "less than the requested DMA memory "
14396 "size (%d)\n", alloclen, reqlen);
14397 lpfc_sli4_mbox_cmd_free(phba, mbox);
14400 /* Set up the SGL pages in the non-embedded DMA pages */
14401 viraddr = mbox->sge_array->addr[0];
14402 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
14403 sgl_pg_pairs = &sgl->sgl_pg_pairs;
14406 list_for_each_entry_safe(sglq_entry, sglq_next, post_sgl_list, list) {
14407 /* Set up the sge entry */
14408 sgl_pg_pairs->sgl_pg0_addr_lo =
14409 cpu_to_le32(putPaddrLow(sglq_entry->phys));
14410 sgl_pg_pairs->sgl_pg0_addr_hi =
14411 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
14412 sgl_pg_pairs->sgl_pg1_addr_lo =
14413 cpu_to_le32(putPaddrLow(0));
14414 sgl_pg_pairs->sgl_pg1_addr_hi =
14415 cpu_to_le32(putPaddrHigh(0));
14417 /* Keep the first xritag on the list */
14419 xritag_start = sglq_entry->sli4_xritag;
14424 /* Complete initialization and perform endian conversion. */
14425 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
14426 bf_set(lpfc_post_sgl_pages_xricnt, sgl, phba->sli4_hba.els_xri_cnt);
14427 sgl->word0 = cpu_to_le32(sgl->word0);
14428 if (!phba->sli4_hba.intr_enable)
14429 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14431 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
14432 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
14434 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
14435 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14436 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14437 if (rc != MBX_TIMEOUT)
14438 lpfc_sli4_mbox_cmd_free(phba, mbox);
14439 if (shdr_status || shdr_add_status || rc) {
14440 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14441 "2513 POST_SGL_BLOCK mailbox command failed "
14442 "status x%x add_status x%x mbx status x%x\n",
14443 shdr_status, shdr_add_status, rc);
14450 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
14451 * @phba: pointer to lpfc hba data structure.
14452 * @sblist: pointer to scsi buffer list.
14453 * @count: number of scsi buffers on the list.
14455 * This routine is invoked to post a block of @count scsi sgl pages from a
14456 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
14461 lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba,
14462 struct list_head *sblist,
14465 struct lpfc_scsi_buf *psb;
14466 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
14467 struct sgl_page_pairs *sgl_pg_pairs;
14469 LPFC_MBOXQ_t *mbox;
14470 uint32_t reqlen, alloclen, pg_pairs;
14472 uint16_t xritag_start = 0;
14474 uint32_t shdr_status, shdr_add_status;
14475 dma_addr_t pdma_phys_bpl1;
14476 union lpfc_sli4_cfg_shdr *shdr;
14478 /* Calculate the requested length of the dma memory */
14479 reqlen = count * sizeof(struct sgl_page_pairs) +
14480 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
14481 if (reqlen > SLI4_PAGE_SIZE) {
14482 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
14483 "0217 Block sgl registration required DMA "
14484 "size (%d) great than a page\n", reqlen);
14487 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14489 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14490 "0283 Failed to allocate mbox cmd memory\n");
14494 /* Allocate DMA memory and set up the non-embedded mailbox command */
14495 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14496 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
14497 LPFC_SLI4_MBX_NEMBED);
14499 if (alloclen < reqlen) {
14500 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14501 "2561 Allocated DMA memory size (%d) is "
14502 "less than the requested DMA memory "
14503 "size (%d)\n", alloclen, reqlen);
14504 lpfc_sli4_mbox_cmd_free(phba, mbox);
14508 /* Get the first SGE entry from the non-embedded DMA memory */
14509 viraddr = mbox->sge_array->addr[0];
14511 /* Set up the SGL pages in the non-embedded DMA pages */
14512 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
14513 sgl_pg_pairs = &sgl->sgl_pg_pairs;
14516 list_for_each_entry(psb, sblist, list) {
14517 /* Set up the sge entry */
14518 sgl_pg_pairs->sgl_pg0_addr_lo =
14519 cpu_to_le32(putPaddrLow(psb->dma_phys_bpl));
14520 sgl_pg_pairs->sgl_pg0_addr_hi =
14521 cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl));
14522 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
14523 pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE;
14525 pdma_phys_bpl1 = 0;
14526 sgl_pg_pairs->sgl_pg1_addr_lo =
14527 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
14528 sgl_pg_pairs->sgl_pg1_addr_hi =
14529 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
14530 /* Keep the first xritag on the list */
14532 xritag_start = psb->cur_iocbq.sli4_xritag;
14536 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
14537 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
14538 /* Perform endian conversion if necessary */
14539 sgl->word0 = cpu_to_le32(sgl->word0);
14541 if (!phba->sli4_hba.intr_enable)
14542 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14544 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
14545 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
14547 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
14548 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14549 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14550 if (rc != MBX_TIMEOUT)
14551 lpfc_sli4_mbox_cmd_free(phba, mbox);
14552 if (shdr_status || shdr_add_status || rc) {
14553 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14554 "2564 POST_SGL_BLOCK mailbox command failed "
14555 "status x%x add_status x%x mbx status x%x\n",
14556 shdr_status, shdr_add_status, rc);
14563 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
14564 * @phba: pointer to lpfc_hba struct that the frame was received on
14565 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14567 * This function checks the fields in the @fc_hdr to see if the FC frame is a
14568 * valid type of frame that the LPFC driver will handle. This function will
14569 * return a zero if the frame is a valid frame or a non zero value when the
14570 * frame does not pass the check.
14573 lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
14575 /* make rctl_names static to save stack space */
14576 static char *rctl_names[] = FC_RCTL_NAMES_INIT;
14577 char *type_names[] = FC_TYPE_NAMES_INIT;
14578 struct fc_vft_header *fc_vft_hdr;
14579 uint32_t *header = (uint32_t *) fc_hdr;
14581 switch (fc_hdr->fh_r_ctl) {
14582 case FC_RCTL_DD_UNCAT: /* uncategorized information */
14583 case FC_RCTL_DD_SOL_DATA: /* solicited data */
14584 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
14585 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
14586 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
14587 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
14588 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
14589 case FC_RCTL_DD_CMD_STATUS: /* command status */
14590 case FC_RCTL_ELS_REQ: /* extended link services request */
14591 case FC_RCTL_ELS_REP: /* extended link services reply */
14592 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
14593 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
14594 case FC_RCTL_BA_NOP: /* basic link service NOP */
14595 case FC_RCTL_BA_ABTS: /* basic link service abort */
14596 case FC_RCTL_BA_RMC: /* remove connection */
14597 case FC_RCTL_BA_ACC: /* basic accept */
14598 case FC_RCTL_BA_RJT: /* basic reject */
14599 case FC_RCTL_BA_PRMT:
14600 case FC_RCTL_ACK_1: /* acknowledge_1 */
14601 case FC_RCTL_ACK_0: /* acknowledge_0 */
14602 case FC_RCTL_P_RJT: /* port reject */
14603 case FC_RCTL_F_RJT: /* fabric reject */
14604 case FC_RCTL_P_BSY: /* port busy */
14605 case FC_RCTL_F_BSY: /* fabric busy to data frame */
14606 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
14607 case FC_RCTL_LCR: /* link credit reset */
14608 case FC_RCTL_END: /* end */
14610 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
14611 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
14612 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
14613 return lpfc_fc_frame_check(phba, fc_hdr);
14617 switch (fc_hdr->fh_type) {
14629 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
14630 "2538 Received frame rctl:%s (x%x), type:%s (x%x), "
14631 "frame Data:%08x %08x %08x %08x %08x %08x %08x\n",
14632 rctl_names[fc_hdr->fh_r_ctl], fc_hdr->fh_r_ctl,
14633 type_names[fc_hdr->fh_type], fc_hdr->fh_type,
14634 be32_to_cpu(header[0]), be32_to_cpu(header[1]),
14635 be32_to_cpu(header[2]), be32_to_cpu(header[3]),
14636 be32_to_cpu(header[4]), be32_to_cpu(header[5]),
14637 be32_to_cpu(header[6]));
14640 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
14641 "2539 Dropped frame rctl:%s type:%s\n",
14642 rctl_names[fc_hdr->fh_r_ctl],
14643 type_names[fc_hdr->fh_type]);
14648 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
14649 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14651 * This function processes the FC header to retrieve the VFI from the VF
14652 * header, if one exists. This function will return the VFI if one exists
14653 * or 0 if no VSAN Header exists.
14656 lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
14658 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
14660 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
14662 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
14666 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
14667 * @phba: Pointer to the HBA structure to search for the vport on
14668 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14669 * @fcfi: The FC Fabric ID that the frame came from
14671 * This function searches the @phba for a vport that matches the content of the
14672 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
14673 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
14674 * returns the matching vport pointer or NULL if unable to match frame to a
14677 static struct lpfc_vport *
14678 lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
14681 struct lpfc_vport **vports;
14682 struct lpfc_vport *vport = NULL;
14684 uint32_t did = (fc_hdr->fh_d_id[0] << 16 |
14685 fc_hdr->fh_d_id[1] << 8 |
14686 fc_hdr->fh_d_id[2]);
14688 if (did == Fabric_DID)
14689 return phba->pport;
14690 if ((phba->pport->fc_flag & FC_PT2PT) &&
14691 !(phba->link_state == LPFC_HBA_READY))
14692 return phba->pport;
14694 vports = lpfc_create_vport_work_array(phba);
14695 if (vports != NULL)
14696 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
14697 if (phba->fcf.fcfi == fcfi &&
14698 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
14699 vports[i]->fc_myDID == did) {
14704 lpfc_destroy_vport_work_array(phba, vports);
14709 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
14710 * @vport: The vport to work on.
14712 * This function updates the receive sequence time stamp for this vport. The
14713 * receive sequence time stamp indicates the time that the last frame of the
14714 * the sequence that has been idle for the longest amount of time was received.
14715 * the driver uses this time stamp to indicate if any received sequences have
14719 lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
14721 struct lpfc_dmabuf *h_buf;
14722 struct hbq_dmabuf *dmabuf = NULL;
14724 /* get the oldest sequence on the rcv list */
14725 h_buf = list_get_first(&vport->rcv_buffer_list,
14726 struct lpfc_dmabuf, list);
14729 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14730 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
14734 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
14735 * @vport: The vport that the received sequences were sent to.
14737 * This function cleans up all outstanding received sequences. This is called
14738 * by the driver when a link event or user action invalidates all the received
14742 lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
14744 struct lpfc_dmabuf *h_buf, *hnext;
14745 struct lpfc_dmabuf *d_buf, *dnext;
14746 struct hbq_dmabuf *dmabuf = NULL;
14748 /* start with the oldest sequence on the rcv list */
14749 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
14750 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14751 list_del_init(&dmabuf->hbuf.list);
14752 list_for_each_entry_safe(d_buf, dnext,
14753 &dmabuf->dbuf.list, list) {
14754 list_del_init(&d_buf->list);
14755 lpfc_in_buf_free(vport->phba, d_buf);
14757 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
14762 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
14763 * @vport: The vport that the received sequences were sent to.
14765 * This function determines whether any received sequences have timed out by
14766 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
14767 * indicates that there is at least one timed out sequence this routine will
14768 * go through the received sequences one at a time from most inactive to most
14769 * active to determine which ones need to be cleaned up. Once it has determined
14770 * that a sequence needs to be cleaned up it will simply free up the resources
14771 * without sending an abort.
14774 lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
14776 struct lpfc_dmabuf *h_buf, *hnext;
14777 struct lpfc_dmabuf *d_buf, *dnext;
14778 struct hbq_dmabuf *dmabuf = NULL;
14779 unsigned long timeout;
14780 int abort_count = 0;
14782 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
14783 vport->rcv_buffer_time_stamp);
14784 if (list_empty(&vport->rcv_buffer_list) ||
14785 time_before(jiffies, timeout))
14787 /* start with the oldest sequence on the rcv list */
14788 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
14789 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14790 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
14791 dmabuf->time_stamp);
14792 if (time_before(jiffies, timeout))
14795 list_del_init(&dmabuf->hbuf.list);
14796 list_for_each_entry_safe(d_buf, dnext,
14797 &dmabuf->dbuf.list, list) {
14798 list_del_init(&d_buf->list);
14799 lpfc_in_buf_free(vport->phba, d_buf);
14801 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
14804 lpfc_update_rcv_time_stamp(vport);
14808 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
14809 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
14811 * This function searches through the existing incomplete sequences that have
14812 * been sent to this @vport. If the frame matches one of the incomplete
14813 * sequences then the dbuf in the @dmabuf is added to the list of frames that
14814 * make up that sequence. If no sequence is found that matches this frame then
14815 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
14816 * This function returns a pointer to the first dmabuf in the sequence list that
14817 * the frame was linked to.
14819 static struct hbq_dmabuf *
14820 lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
14822 struct fc_frame_header *new_hdr;
14823 struct fc_frame_header *temp_hdr;
14824 struct lpfc_dmabuf *d_buf;
14825 struct lpfc_dmabuf *h_buf;
14826 struct hbq_dmabuf *seq_dmabuf = NULL;
14827 struct hbq_dmabuf *temp_dmabuf = NULL;
14829 INIT_LIST_HEAD(&dmabuf->dbuf.list);
14830 dmabuf->time_stamp = jiffies;
14831 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14832 /* Use the hdr_buf to find the sequence that this frame belongs to */
14833 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
14834 temp_hdr = (struct fc_frame_header *)h_buf->virt;
14835 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
14836 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
14837 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
14839 /* found a pending sequence that matches this frame */
14840 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14845 * This indicates first frame received for this sequence.
14846 * Queue the buffer on the vport's rcv_buffer_list.
14848 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
14849 lpfc_update_rcv_time_stamp(vport);
14852 temp_hdr = seq_dmabuf->hbuf.virt;
14853 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
14854 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
14855 list_del_init(&seq_dmabuf->hbuf.list);
14856 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
14857 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
14858 lpfc_update_rcv_time_stamp(vport);
14861 /* move this sequence to the tail to indicate a young sequence */
14862 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
14863 seq_dmabuf->time_stamp = jiffies;
14864 lpfc_update_rcv_time_stamp(vport);
14865 if (list_empty(&seq_dmabuf->dbuf.list)) {
14866 temp_hdr = dmabuf->hbuf.virt;
14867 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
14870 /* find the correct place in the sequence to insert this frame */
14871 list_for_each_entry_reverse(d_buf, &seq_dmabuf->dbuf.list, list) {
14872 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14873 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
14875 * If the frame's sequence count is greater than the frame on
14876 * the list then insert the frame right after this frame
14878 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
14879 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
14880 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
14888 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
14889 * @vport: pointer to a vitural port
14890 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14892 * This function tries to abort from the partially assembed sequence, described
14893 * by the information from basic abbort @dmabuf. It checks to see whether such
14894 * partially assembled sequence held by the driver. If so, it shall free up all
14895 * the frames from the partially assembled sequence.
14898 * true -- if there is matching partially assembled sequence present and all
14899 * the frames freed with the sequence;
14900 * false -- if there is no matching partially assembled sequence present so
14901 * nothing got aborted in the lower layer driver
14904 lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
14905 struct hbq_dmabuf *dmabuf)
14907 struct fc_frame_header *new_hdr;
14908 struct fc_frame_header *temp_hdr;
14909 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
14910 struct hbq_dmabuf *seq_dmabuf = NULL;
14912 /* Use the hdr_buf to find the sequence that matches this frame */
14913 INIT_LIST_HEAD(&dmabuf->dbuf.list);
14914 INIT_LIST_HEAD(&dmabuf->hbuf.list);
14915 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14916 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
14917 temp_hdr = (struct fc_frame_header *)h_buf->virt;
14918 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
14919 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
14920 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
14922 /* found a pending sequence that matches this frame */
14923 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14927 /* Free up all the frames from the partially assembled sequence */
14929 list_for_each_entry_safe(d_buf, n_buf,
14930 &seq_dmabuf->dbuf.list, list) {
14931 list_del_init(&d_buf->list);
14932 lpfc_in_buf_free(vport->phba, d_buf);
14940 * lpfc_sli4_abort_ulp_seq - Abort assembled unsol sequence from ulp
14941 * @vport: pointer to a vitural port
14942 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14944 * This function tries to abort from the assembed sequence from upper level
14945 * protocol, described by the information from basic abbort @dmabuf. It
14946 * checks to see whether such pending context exists at upper level protocol.
14947 * If so, it shall clean up the pending context.
14950 * true -- if there is matching pending context of the sequence cleaned
14952 * false -- if there is no matching pending context of the sequence present
14956 lpfc_sli4_abort_ulp_seq(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
14958 struct lpfc_hba *phba = vport->phba;
14961 /* Accepting abort at ulp with SLI4 only */
14962 if (phba->sli_rev < LPFC_SLI_REV4)
14965 /* Register all caring upper level protocols to attend abort */
14966 handled = lpfc_ct_handle_unsol_abort(phba, dmabuf);
14974 * lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler
14975 * @phba: Pointer to HBA context object.
14976 * @cmd_iocbq: pointer to the command iocbq structure.
14977 * @rsp_iocbq: pointer to the response iocbq structure.
14979 * This function handles the sequence abort response iocb command complete
14980 * event. It properly releases the memory allocated to the sequence abort
14984 lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba *phba,
14985 struct lpfc_iocbq *cmd_iocbq,
14986 struct lpfc_iocbq *rsp_iocbq)
14988 struct lpfc_nodelist *ndlp;
14991 ndlp = (struct lpfc_nodelist *)cmd_iocbq->context1;
14992 lpfc_nlp_put(ndlp);
14993 lpfc_nlp_not_used(ndlp);
14994 lpfc_sli_release_iocbq(phba, cmd_iocbq);
14997 /* Failure means BLS ABORT RSP did not get delivered to remote node*/
14998 if (rsp_iocbq && rsp_iocbq->iocb.ulpStatus)
14999 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15000 "3154 BLS ABORT RSP failed, data: x%x/x%x\n",
15001 rsp_iocbq->iocb.ulpStatus,
15002 rsp_iocbq->iocb.un.ulpWord[4]);
15006 * lpfc_sli4_xri_inrange - check xri is in range of xris owned by driver.
15007 * @phba: Pointer to HBA context object.
15008 * @xri: xri id in transaction.
15010 * This function validates the xri maps to the known range of XRIs allocated an
15011 * used by the driver.
15014 lpfc_sli4_xri_inrange(struct lpfc_hba *phba,
15019 for (i = 0; i < phba->sli4_hba.max_cfg_param.max_xri; i++) {
15020 if (xri == phba->sli4_hba.xri_ids[i])
15027 * lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort
15028 * @phba: Pointer to HBA context object.
15029 * @fc_hdr: pointer to a FC frame header.
15031 * This function sends a basic response to a previous unsol sequence abort
15032 * event after aborting the sequence handling.
15035 lpfc_sli4_seq_abort_rsp(struct lpfc_vport *vport,
15036 struct fc_frame_header *fc_hdr, bool aborted)
15038 struct lpfc_hba *phba = vport->phba;
15039 struct lpfc_iocbq *ctiocb = NULL;
15040 struct lpfc_nodelist *ndlp;
15041 uint16_t oxid, rxid, xri, lxri;
15042 uint32_t sid, fctl;
15046 if (!lpfc_is_link_up(phba))
15049 sid = sli4_sid_from_fc_hdr(fc_hdr);
15050 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
15051 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
15053 ndlp = lpfc_findnode_did(vport, sid);
15055 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
15057 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
15058 "1268 Failed to allocate ndlp for "
15059 "oxid:x%x SID:x%x\n", oxid, sid);
15062 lpfc_nlp_init(vport, ndlp, sid);
15063 /* Put ndlp onto pport node list */
15064 lpfc_enqueue_node(vport, ndlp);
15065 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
15066 /* re-setup ndlp without removing from node list */
15067 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
15069 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
15070 "3275 Failed to active ndlp found "
15071 "for oxid:x%x SID:x%x\n", oxid, sid);
15076 /* Allocate buffer for rsp iocb */
15077 ctiocb = lpfc_sli_get_iocbq(phba);
15081 /* Extract the F_CTL field from FC_HDR */
15082 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
15084 icmd = &ctiocb->iocb;
15085 icmd->un.xseq64.bdl.bdeSize = 0;
15086 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
15087 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
15088 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
15089 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
15091 /* Fill in the rest of iocb fields */
15092 icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
15093 icmd->ulpBdeCount = 0;
15095 icmd->ulpClass = CLASS3;
15096 icmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
15097 ctiocb->context1 = lpfc_nlp_get(ndlp);
15099 ctiocb->iocb_cmpl = NULL;
15100 ctiocb->vport = phba->pport;
15101 ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_rsp_cmpl;
15102 ctiocb->sli4_lxritag = NO_XRI;
15103 ctiocb->sli4_xritag = NO_XRI;
15105 if (fctl & FC_FC_EX_CTX)
15106 /* Exchange responder sent the abort so we
15112 lxri = lpfc_sli4_xri_inrange(phba, xri);
15113 if (lxri != NO_XRI)
15114 lpfc_set_rrq_active(phba, ndlp, lxri,
15115 (xri == oxid) ? rxid : oxid, 0);
15116 /* For BA_ABTS from exchange responder, if the logical xri with
15117 * the oxid maps to the FCP XRI range, the port no longer has
15118 * that exchange context, send a BLS_RJT. Override the IOCB for
15121 if ((fctl & FC_FC_EX_CTX) &&
15122 (lxri > lpfc_sli4_get_els_iocb_cnt(phba))) {
15123 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
15124 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
15125 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
15126 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
15129 /* If BA_ABTS failed to abort a partially assembled receive sequence,
15130 * the driver no longer has that exchange, send a BLS_RJT. Override
15131 * the IOCB for a BA_RJT.
15133 if (aborted == false) {
15134 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
15135 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
15136 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
15137 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
15140 if (fctl & FC_FC_EX_CTX) {
15141 /* ABTS sent by responder to CT exchange, construction
15142 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
15143 * field and RX_ID from ABTS for RX_ID field.
15145 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_RSP);
15147 /* ABTS sent by initiator to CT exchange, construction
15148 * of BA_ACC will need to allocate a new XRI as for the
15151 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_INT);
15153 bf_set(lpfc_abts_rxid, &icmd->un.bls_rsp, rxid);
15154 bf_set(lpfc_abts_oxid, &icmd->un.bls_rsp, oxid);
15156 /* Xmit CT abts response on exchange <xid> */
15157 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
15158 "1200 Send BLS cmd x%x on oxid x%x Data: x%x\n",
15159 icmd->un.xseq64.w5.hcsw.Rctl, oxid, phba->link_state);
15161 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
15162 if (rc == IOCB_ERROR) {
15163 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
15164 "2925 Failed to issue CT ABTS RSP x%x on "
15165 "xri x%x, Data x%x\n",
15166 icmd->un.xseq64.w5.hcsw.Rctl, oxid,
15168 lpfc_nlp_put(ndlp);
15169 ctiocb->context1 = NULL;
15170 lpfc_sli_release_iocbq(phba, ctiocb);
15175 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
15176 * @vport: Pointer to the vport on which this sequence was received
15177 * @dmabuf: pointer to a dmabuf that describes the FC sequence
15179 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
15180 * receive sequence is only partially assembed by the driver, it shall abort
15181 * the partially assembled frames for the sequence. Otherwise, if the
15182 * unsolicited receive sequence has been completely assembled and passed to
15183 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
15184 * unsolicited sequence has been aborted. After that, it will issue a basic
15185 * accept to accept the abort.
15188 lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
15189 struct hbq_dmabuf *dmabuf)
15191 struct lpfc_hba *phba = vport->phba;
15192 struct fc_frame_header fc_hdr;
15196 /* Make a copy of fc_hdr before the dmabuf being released */
15197 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
15198 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
15200 if (fctl & FC_FC_EX_CTX) {
15201 /* ABTS by responder to exchange, no cleanup needed */
15204 /* ABTS by initiator to exchange, need to do cleanup */
15205 aborted = lpfc_sli4_abort_partial_seq(vport, dmabuf);
15206 if (aborted == false)
15207 aborted = lpfc_sli4_abort_ulp_seq(vport, dmabuf);
15209 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15211 /* Respond with BA_ACC or BA_RJT accordingly */
15212 lpfc_sli4_seq_abort_rsp(vport, &fc_hdr, aborted);
15216 * lpfc_seq_complete - Indicates if a sequence is complete
15217 * @dmabuf: pointer to a dmabuf that describes the FC sequence
15219 * This function checks the sequence, starting with the frame described by
15220 * @dmabuf, to see if all the frames associated with this sequence are present.
15221 * the frames associated with this sequence are linked to the @dmabuf using the
15222 * dbuf list. This function looks for two major things. 1) That the first frame
15223 * has a sequence count of zero. 2) There is a frame with last frame of sequence
15224 * set. 3) That there are no holes in the sequence count. The function will
15225 * return 1 when the sequence is complete, otherwise it will return 0.
15228 lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
15230 struct fc_frame_header *hdr;
15231 struct lpfc_dmabuf *d_buf;
15232 struct hbq_dmabuf *seq_dmabuf;
15236 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
15237 /* make sure first fame of sequence has a sequence count of zero */
15238 if (hdr->fh_seq_cnt != seq_count)
15240 fctl = (hdr->fh_f_ctl[0] << 16 |
15241 hdr->fh_f_ctl[1] << 8 |
15243 /* If last frame of sequence we can return success. */
15244 if (fctl & FC_FC_END_SEQ)
15246 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
15247 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
15248 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
15249 /* If there is a hole in the sequence count then fail. */
15250 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
15252 fctl = (hdr->fh_f_ctl[0] << 16 |
15253 hdr->fh_f_ctl[1] << 8 |
15255 /* If last frame of sequence we can return success. */
15256 if (fctl & FC_FC_END_SEQ)
15263 * lpfc_prep_seq - Prep sequence for ULP processing
15264 * @vport: Pointer to the vport on which this sequence was received
15265 * @dmabuf: pointer to a dmabuf that describes the FC sequence
15267 * This function takes a sequence, described by a list of frames, and creates
15268 * a list of iocbq structures to describe the sequence. This iocbq list will be
15269 * used to issue to the generic unsolicited sequence handler. This routine
15270 * returns a pointer to the first iocbq in the list. If the function is unable
15271 * to allocate an iocbq then it throw out the received frames that were not
15272 * able to be described and return a pointer to the first iocbq. If unable to
15273 * allocate any iocbqs (including the first) this function will return NULL.
15275 static struct lpfc_iocbq *
15276 lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
15278 struct hbq_dmabuf *hbq_buf;
15279 struct lpfc_dmabuf *d_buf, *n_buf;
15280 struct lpfc_iocbq *first_iocbq, *iocbq;
15281 struct fc_frame_header *fc_hdr;
15283 uint32_t len, tot_len;
15284 struct ulp_bde64 *pbde;
15286 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
15287 /* remove from receive buffer list */
15288 list_del_init(&seq_dmabuf->hbuf.list);
15289 lpfc_update_rcv_time_stamp(vport);
15290 /* get the Remote Port's SID */
15291 sid = sli4_sid_from_fc_hdr(fc_hdr);
15293 /* Get an iocbq struct to fill in. */
15294 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
15296 /* Initialize the first IOCB. */
15297 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
15298 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
15300 /* Check FC Header to see what TYPE of frame we are rcv'ing */
15301 if (sli4_type_from_fc_hdr(fc_hdr) == FC_TYPE_ELS) {
15302 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_ELS64_CX;
15303 first_iocbq->iocb.un.rcvels.parmRo =
15304 sli4_did_from_fc_hdr(fc_hdr);
15305 first_iocbq->iocb.ulpPU = PARM_NPIV_DID;
15307 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
15308 first_iocbq->iocb.ulpContext = NO_XRI;
15309 first_iocbq->iocb.unsli3.rcvsli3.ox_id =
15310 be16_to_cpu(fc_hdr->fh_ox_id);
15311 /* iocbq is prepped for internal consumption. Physical vpi. */
15312 first_iocbq->iocb.unsli3.rcvsli3.vpi =
15313 vport->phba->vpi_ids[vport->vpi];
15314 /* put the first buffer into the first IOCBq */
15315 tot_len = bf_get(lpfc_rcqe_length,
15316 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
15318 first_iocbq->context2 = &seq_dmabuf->dbuf;
15319 first_iocbq->context3 = NULL;
15320 first_iocbq->iocb.ulpBdeCount = 1;
15321 if (tot_len > LPFC_DATA_BUF_SIZE)
15322 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
15323 LPFC_DATA_BUF_SIZE;
15325 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize = tot_len;
15327 first_iocbq->iocb.un.rcvels.remoteID = sid;
15329 first_iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
15331 iocbq = first_iocbq;
15333 * Each IOCBq can have two Buffers assigned, so go through the list
15334 * of buffers for this sequence and save two buffers in each IOCBq
15336 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
15338 lpfc_in_buf_free(vport->phba, d_buf);
15341 if (!iocbq->context3) {
15342 iocbq->context3 = d_buf;
15343 iocbq->iocb.ulpBdeCount++;
15344 /* We need to get the size out of the right CQE */
15345 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
15346 len = bf_get(lpfc_rcqe_length,
15347 &hbq_buf->cq_event.cqe.rcqe_cmpl);
15348 pbde = (struct ulp_bde64 *)
15349 &iocbq->iocb.unsli3.sli3Words[4];
15350 if (len > LPFC_DATA_BUF_SIZE)
15351 pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
15353 pbde->tus.f.bdeSize = len;
15355 iocbq->iocb.unsli3.rcvsli3.acc_len += len;
15358 iocbq = lpfc_sli_get_iocbq(vport->phba);
15361 first_iocbq->iocb.ulpStatus =
15362 IOSTAT_FCP_RSP_ERROR;
15363 first_iocbq->iocb.un.ulpWord[4] =
15364 IOERR_NO_RESOURCES;
15366 lpfc_in_buf_free(vport->phba, d_buf);
15369 /* We need to get the size out of the right CQE */
15370 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
15371 len = bf_get(lpfc_rcqe_length,
15372 &hbq_buf->cq_event.cqe.rcqe_cmpl);
15373 iocbq->context2 = d_buf;
15374 iocbq->context3 = NULL;
15375 iocbq->iocb.ulpBdeCount = 1;
15376 if (len > LPFC_DATA_BUF_SIZE)
15377 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
15378 LPFC_DATA_BUF_SIZE;
15380 iocbq->iocb.un.cont64[0].tus.f.bdeSize = len;
15383 iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
15385 iocbq->iocb.un.rcvels.remoteID = sid;
15386 list_add_tail(&iocbq->list, &first_iocbq->list);
15389 return first_iocbq;
15393 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
15394 struct hbq_dmabuf *seq_dmabuf)
15396 struct fc_frame_header *fc_hdr;
15397 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
15398 struct lpfc_hba *phba = vport->phba;
15400 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
15401 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
15403 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15404 "2707 Ring %d handler: Failed to allocate "
15405 "iocb Rctl x%x Type x%x received\n",
15407 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
15410 if (!lpfc_complete_unsol_iocb(phba,
15411 &phba->sli.ring[LPFC_ELS_RING],
15412 iocbq, fc_hdr->fh_r_ctl,
15414 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15415 "2540 Ring %d handler: unexpected Rctl "
15416 "x%x Type x%x received\n",
15418 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
15420 /* Free iocb created in lpfc_prep_seq */
15421 list_for_each_entry_safe(curr_iocb, next_iocb,
15422 &iocbq->list, list) {
15423 list_del_init(&curr_iocb->list);
15424 lpfc_sli_release_iocbq(phba, curr_iocb);
15426 lpfc_sli_release_iocbq(phba, iocbq);
15430 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
15431 * @phba: Pointer to HBA context object.
15433 * This function is called with no lock held. This function processes all
15434 * the received buffers and gives it to upper layers when a received buffer
15435 * indicates that it is the final frame in the sequence. The interrupt
15436 * service routine processes received buffers at interrupt contexts and adds
15437 * received dma buffers to the rb_pend_list queue and signals the worker thread.
15438 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
15439 * appropriate receive function when the final frame in a sequence is received.
15442 lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
15443 struct hbq_dmabuf *dmabuf)
15445 struct hbq_dmabuf *seq_dmabuf;
15446 struct fc_frame_header *fc_hdr;
15447 struct lpfc_vport *vport;
15451 /* Process each received buffer */
15452 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
15453 /* check to see if this a valid type of frame */
15454 if (lpfc_fc_frame_check(phba, fc_hdr)) {
15455 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15458 if ((bf_get(lpfc_cqe_code,
15459 &dmabuf->cq_event.cqe.rcqe_cmpl) == CQE_CODE_RECEIVE_V1))
15460 fcfi = bf_get(lpfc_rcqe_fcf_id_v1,
15461 &dmabuf->cq_event.cqe.rcqe_cmpl);
15463 fcfi = bf_get(lpfc_rcqe_fcf_id,
15464 &dmabuf->cq_event.cqe.rcqe_cmpl);
15466 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi);
15468 /* throw out the frame */
15469 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15473 /* d_id this frame is directed to */
15474 did = sli4_did_from_fc_hdr(fc_hdr);
15476 /* vport is registered unless we rcv a FLOGI directed to Fabric_DID */
15477 if (!(vport->vpi_state & LPFC_VPI_REGISTERED) &&
15478 (did != Fabric_DID)) {
15480 * Throw out the frame if we are not pt2pt.
15481 * The pt2pt protocol allows for discovery frames
15482 * to be received without a registered VPI.
15484 if (!(vport->fc_flag & FC_PT2PT) ||
15485 (phba->link_state == LPFC_HBA_READY)) {
15486 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15491 /* Handle the basic abort sequence (BA_ABTS) event */
15492 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
15493 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
15497 /* Link this frame */
15498 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
15500 /* unable to add frame to vport - throw it out */
15501 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15504 /* If not last frame in sequence continue processing frames. */
15505 if (!lpfc_seq_complete(seq_dmabuf))
15508 /* Send the complete sequence to the upper layer protocol */
15509 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
15513 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
15514 * @phba: pointer to lpfc hba data structure.
15516 * This routine is invoked to post rpi header templates to the
15517 * HBA consistent with the SLI-4 interface spec. This routine
15518 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
15519 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
15521 * This routine does not require any locks. It's usage is expected
15522 * to be driver load or reset recovery when the driver is
15527 * -EIO - The mailbox failed to complete successfully.
15528 * When this error occurs, the driver is not guaranteed
15529 * to have any rpi regions posted to the device and
15530 * must either attempt to repost the regions or take a
15534 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
15536 struct lpfc_rpi_hdr *rpi_page;
15540 /* SLI4 ports that support extents do not require RPI headers. */
15541 if (!phba->sli4_hba.rpi_hdrs_in_use)
15543 if (phba->sli4_hba.extents_in_use)
15546 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
15548 * Assign the rpi headers a physical rpi only if the driver
15549 * has not initialized those resources. A port reset only
15550 * needs the headers posted.
15552 if (bf_get(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags) !=
15554 rpi_page->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
15556 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
15557 if (rc != MBX_SUCCESS) {
15558 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15559 "2008 Error %d posting all rpi "
15567 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags,
15568 LPFC_RPI_RSRC_RDY);
15573 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
15574 * @phba: pointer to lpfc hba data structure.
15575 * @rpi_page: pointer to the rpi memory region.
15577 * This routine is invoked to post a single rpi header to the
15578 * HBA consistent with the SLI-4 interface spec. This memory region
15579 * maps up to 64 rpi context regions.
15583 * -ENOMEM - No available memory
15584 * -EIO - The mailbox failed to complete successfully.
15587 lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
15589 LPFC_MBOXQ_t *mboxq;
15590 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
15592 uint32_t shdr_status, shdr_add_status;
15593 union lpfc_sli4_cfg_shdr *shdr;
15595 /* SLI4 ports that support extents do not require RPI headers. */
15596 if (!phba->sli4_hba.rpi_hdrs_in_use)
15598 if (phba->sli4_hba.extents_in_use)
15601 /* The port is notified of the header region via a mailbox command. */
15602 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15604 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15605 "2001 Unable to allocate memory for issuing "
15606 "SLI_CONFIG_SPECIAL mailbox command\n");
15610 /* Post all rpi memory regions to the port. */
15611 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
15612 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
15613 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
15614 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
15615 sizeof(struct lpfc_sli4_cfg_mhdr),
15616 LPFC_SLI4_MBX_EMBED);
15619 /* Post the physical rpi to the port for this rpi header. */
15620 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
15621 rpi_page->start_rpi);
15622 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
15623 hdr_tmpl, rpi_page->page_count);
15625 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
15626 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
15627 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
15628 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
15629 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15630 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15631 if (rc != MBX_TIMEOUT)
15632 mempool_free(mboxq, phba->mbox_mem_pool);
15633 if (shdr_status || shdr_add_status || rc) {
15634 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15635 "2514 POST_RPI_HDR mailbox failed with "
15636 "status x%x add_status x%x, mbx status x%x\n",
15637 shdr_status, shdr_add_status, rc);
15644 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
15645 * @phba: pointer to lpfc hba data structure.
15647 * This routine is invoked to post rpi header templates to the
15648 * HBA consistent with the SLI-4 interface spec. This routine
15649 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
15650 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
15653 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
15654 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
15657 lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
15660 uint16_t max_rpi, rpi_limit;
15661 uint16_t rpi_remaining, lrpi = 0;
15662 struct lpfc_rpi_hdr *rpi_hdr;
15663 unsigned long iflag;
15665 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
15666 rpi_limit = phba->sli4_hba.next_rpi;
15669 * Fetch the next logical rpi. Because this index is logical,
15670 * the driver starts at 0 each time.
15672 spin_lock_irqsave(&phba->hbalock, iflag);
15673 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, 0);
15674 if (rpi >= rpi_limit)
15675 rpi = LPFC_RPI_ALLOC_ERROR;
15677 set_bit(rpi, phba->sli4_hba.rpi_bmask);
15678 phba->sli4_hba.max_cfg_param.rpi_used++;
15679 phba->sli4_hba.rpi_count++;
15683 * Don't try to allocate more rpi header regions if the device limit
15684 * has been exhausted.
15686 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
15687 (phba->sli4_hba.rpi_count >= max_rpi)) {
15688 spin_unlock_irqrestore(&phba->hbalock, iflag);
15693 * RPI header postings are not required for SLI4 ports capable of
15696 if (!phba->sli4_hba.rpi_hdrs_in_use) {
15697 spin_unlock_irqrestore(&phba->hbalock, iflag);
15702 * If the driver is running low on rpi resources, allocate another
15703 * page now. Note that the next_rpi value is used because
15704 * it represents how many are actually in use whereas max_rpi notes
15705 * how many are supported max by the device.
15707 rpi_remaining = phba->sli4_hba.next_rpi - phba->sli4_hba.rpi_count;
15708 spin_unlock_irqrestore(&phba->hbalock, iflag);
15709 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
15710 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
15712 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15713 "2002 Error Could not grow rpi "
15716 lrpi = rpi_hdr->start_rpi;
15717 rpi_hdr->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
15718 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
15726 * lpfc_sli4_free_rpi - Release an rpi for reuse.
15727 * @phba: pointer to lpfc hba data structure.
15729 * This routine is invoked to release an rpi to the pool of
15730 * available rpis maintained by the driver.
15733 __lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
15735 if (test_and_clear_bit(rpi, phba->sli4_hba.rpi_bmask)) {
15736 phba->sli4_hba.rpi_count--;
15737 phba->sli4_hba.max_cfg_param.rpi_used--;
15742 * lpfc_sli4_free_rpi - Release an rpi for reuse.
15743 * @phba: pointer to lpfc hba data structure.
15745 * This routine is invoked to release an rpi to the pool of
15746 * available rpis maintained by the driver.
15749 lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
15751 spin_lock_irq(&phba->hbalock);
15752 __lpfc_sli4_free_rpi(phba, rpi);
15753 spin_unlock_irq(&phba->hbalock);
15757 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
15758 * @phba: pointer to lpfc hba data structure.
15760 * This routine is invoked to remove the memory region that
15761 * provided rpi via a bitmask.
15764 lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
15766 kfree(phba->sli4_hba.rpi_bmask);
15767 kfree(phba->sli4_hba.rpi_ids);
15768 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
15772 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
15773 * @phba: pointer to lpfc hba data structure.
15775 * This routine is invoked to remove the memory region that
15776 * provided rpi via a bitmask.
15779 lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp,
15780 void (*cmpl)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *arg)
15782 LPFC_MBOXQ_t *mboxq;
15783 struct lpfc_hba *phba = ndlp->phba;
15786 /* The port is notified of the header region via a mailbox command. */
15787 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15791 /* Post all rpi memory regions to the port. */
15792 lpfc_resume_rpi(mboxq, ndlp);
15794 mboxq->mbox_cmpl = cmpl;
15795 mboxq->context1 = arg;
15796 mboxq->context2 = ndlp;
15798 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15799 mboxq->vport = ndlp->vport;
15800 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15801 if (rc == MBX_NOT_FINISHED) {
15802 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15803 "2010 Resume RPI Mailbox failed "
15804 "status %d, mbxStatus x%x\n", rc,
15805 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
15806 mempool_free(mboxq, phba->mbox_mem_pool);
15813 * lpfc_sli4_init_vpi - Initialize a vpi with the port
15814 * @vport: Pointer to the vport for which the vpi is being initialized
15816 * This routine is invoked to activate a vpi with the port.
15820 * -Evalue otherwise
15823 lpfc_sli4_init_vpi(struct lpfc_vport *vport)
15825 LPFC_MBOXQ_t *mboxq;
15827 int retval = MBX_SUCCESS;
15829 struct lpfc_hba *phba = vport->phba;
15830 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15833 lpfc_init_vpi(phba, mboxq, vport->vpi);
15834 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
15835 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
15836 if (rc != MBX_SUCCESS) {
15837 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
15838 "2022 INIT VPI Mailbox failed "
15839 "status %d, mbxStatus x%x\n", rc,
15840 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
15843 if (rc != MBX_TIMEOUT)
15844 mempool_free(mboxq, vport->phba->mbox_mem_pool);
15850 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
15851 * @phba: pointer to lpfc hba data structure.
15852 * @mboxq: Pointer to mailbox object.
15854 * This routine is invoked to manually add a single FCF record. The caller
15855 * must pass a completely initialized FCF_Record. This routine takes
15856 * care of the nonembedded mailbox operations.
15859 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
15862 union lpfc_sli4_cfg_shdr *shdr;
15863 uint32_t shdr_status, shdr_add_status;
15865 virt_addr = mboxq->sge_array->addr[0];
15866 /* The IOCTL status is embedded in the mailbox subheader. */
15867 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
15868 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15869 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15871 if ((shdr_status || shdr_add_status) &&
15872 (shdr_status != STATUS_FCF_IN_USE))
15873 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15874 "2558 ADD_FCF_RECORD mailbox failed with "
15875 "status x%x add_status x%x\n",
15876 shdr_status, shdr_add_status);
15878 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15882 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
15883 * @phba: pointer to lpfc hba data structure.
15884 * @fcf_record: pointer to the initialized fcf record to add.
15886 * This routine is invoked to manually add a single FCF record. The caller
15887 * must pass a completely initialized FCF_Record. This routine takes
15888 * care of the nonembedded mailbox operations.
15891 lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
15894 LPFC_MBOXQ_t *mboxq;
15897 dma_addr_t phys_addr;
15898 struct lpfc_mbx_sge sge;
15899 uint32_t alloc_len, req_len;
15902 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15904 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15905 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
15909 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
15912 /* Allocate DMA memory and set up the non-embedded mailbox command */
15913 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
15914 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
15915 req_len, LPFC_SLI4_MBX_NEMBED);
15916 if (alloc_len < req_len) {
15917 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15918 "2523 Allocated DMA memory size (x%x) is "
15919 "less than the requested DMA memory "
15920 "size (x%x)\n", alloc_len, req_len);
15921 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15926 * Get the first SGE entry from the non-embedded DMA memory. This
15927 * routine only uses a single SGE.
15929 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
15930 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
15931 virt_addr = mboxq->sge_array->addr[0];
15933 * Configure the FCF record for FCFI 0. This is the driver's
15934 * hardcoded default and gets used in nonFIP mode.
15936 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
15937 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
15938 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
15941 * Copy the fcf_index and the FCF Record Data. The data starts after
15942 * the FCoE header plus word10. The data copy needs to be endian
15945 bytep += sizeof(uint32_t);
15946 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
15947 mboxq->vport = phba->pport;
15948 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
15949 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15950 if (rc == MBX_NOT_FINISHED) {
15951 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15952 "2515 ADD_FCF_RECORD mailbox failed with "
15953 "status 0x%x\n", rc);
15954 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15963 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
15964 * @phba: pointer to lpfc hba data structure.
15965 * @fcf_record: pointer to the fcf record to write the default data.
15966 * @fcf_index: FCF table entry index.
15968 * This routine is invoked to build the driver's default FCF record. The
15969 * values used are hardcoded. This routine handles memory initialization.
15973 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
15974 struct fcf_record *fcf_record,
15975 uint16_t fcf_index)
15977 memset(fcf_record, 0, sizeof(struct fcf_record));
15978 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
15979 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
15980 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
15981 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
15982 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
15983 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
15984 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
15985 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
15986 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
15987 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
15988 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
15989 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
15990 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
15991 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
15992 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
15993 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
15994 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
15995 /* Set the VLAN bit map */
15996 if (phba->valid_vlan) {
15997 fcf_record->vlan_bitmap[phba->vlan_id / 8]
15998 = 1 << (phba->vlan_id % 8);
16003 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
16004 * @phba: pointer to lpfc hba data structure.
16005 * @fcf_index: FCF table entry offset.
16007 * This routine is invoked to scan the entire FCF table by reading FCF
16008 * record and processing it one at a time starting from the @fcf_index
16009 * for initial FCF discovery or fast FCF failover rediscovery.
16011 * Return 0 if the mailbox command is submitted successfully, none 0
16015 lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
16018 LPFC_MBOXQ_t *mboxq;
16020 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
16021 phba->fcoe_cvl_eventtag_attn = phba->fcoe_cvl_eventtag;
16022 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16024 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16025 "2000 Failed to allocate mbox for "
16028 goto fail_fcf_scan;
16030 /* Construct the read FCF record mailbox command */
16031 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
16034 goto fail_fcf_scan;
16036 /* Issue the mailbox command asynchronously */
16037 mboxq->vport = phba->pport;
16038 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
16040 spin_lock_irq(&phba->hbalock);
16041 phba->hba_flag |= FCF_TS_INPROG;
16042 spin_unlock_irq(&phba->hbalock);
16044 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
16045 if (rc == MBX_NOT_FINISHED)
16048 /* Reset eligible FCF count for new scan */
16049 if (fcf_index == LPFC_FCOE_FCF_GET_FIRST)
16050 phba->fcf.eligible_fcf_cnt = 0;
16056 lpfc_sli4_mbox_cmd_free(phba, mboxq);
16057 /* FCF scan failed, clear FCF_TS_INPROG flag */
16058 spin_lock_irq(&phba->hbalock);
16059 phba->hba_flag &= ~FCF_TS_INPROG;
16060 spin_unlock_irq(&phba->hbalock);
16066 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
16067 * @phba: pointer to lpfc hba data structure.
16068 * @fcf_index: FCF table entry offset.
16070 * This routine is invoked to read an FCF record indicated by @fcf_index
16071 * and to use it for FLOGI roundrobin FCF failover.
16073 * Return 0 if the mailbox command is submitted successfully, none 0
16077 lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
16080 LPFC_MBOXQ_t *mboxq;
16082 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16084 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
16085 "2763 Failed to allocate mbox for "
16088 goto fail_fcf_read;
16090 /* Construct the read FCF record mailbox command */
16091 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
16094 goto fail_fcf_read;
16096 /* Issue the mailbox command asynchronously */
16097 mboxq->vport = phba->pport;
16098 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
16099 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
16100 if (rc == MBX_NOT_FINISHED)
16106 if (error && mboxq)
16107 lpfc_sli4_mbox_cmd_free(phba, mboxq);
16112 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
16113 * @phba: pointer to lpfc hba data structure.
16114 * @fcf_index: FCF table entry offset.
16116 * This routine is invoked to read an FCF record indicated by @fcf_index to
16117 * determine whether it's eligible for FLOGI roundrobin failover list.
16119 * Return 0 if the mailbox command is submitted successfully, none 0
16123 lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
16126 LPFC_MBOXQ_t *mboxq;
16128 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16130 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
16131 "2758 Failed to allocate mbox for "
16134 goto fail_fcf_read;
16136 /* Construct the read FCF record mailbox command */
16137 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
16140 goto fail_fcf_read;
16142 /* Issue the mailbox command asynchronously */
16143 mboxq->vport = phba->pport;
16144 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
16145 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
16146 if (rc == MBX_NOT_FINISHED)
16152 if (error && mboxq)
16153 lpfc_sli4_mbox_cmd_free(phba, mboxq);
16158 * lpfc_check_next_fcf_pri
16159 * phba pointer to the lpfc_hba struct for this port.
16160 * This routine is called from the lpfc_sli4_fcf_rr_next_index_get
16161 * routine when the rr_bmask is empty. The FCF indecies are put into the
16162 * rr_bmask based on their priority level. Starting from the highest priority
16163 * to the lowest. The most likely FCF candidate will be in the highest
16164 * priority group. When this routine is called it searches the fcf_pri list for
16165 * next lowest priority group and repopulates the rr_bmask with only those
16168 * 1=success 0=failure
16171 lpfc_check_next_fcf_pri_level(struct lpfc_hba *phba)
16173 uint16_t next_fcf_pri;
16174 uint16_t last_index;
16175 struct lpfc_fcf_pri *fcf_pri;
16179 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
16180 LPFC_SLI4_FCF_TBL_INDX_MAX);
16181 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
16182 "3060 Last IDX %d\n", last_index);
16184 /* Verify the priority list has 2 or more entries */
16185 spin_lock_irq(&phba->hbalock);
16186 if (list_empty(&phba->fcf.fcf_pri_list) ||
16187 list_is_singular(&phba->fcf.fcf_pri_list)) {
16188 spin_unlock_irq(&phba->hbalock);
16189 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
16190 "3061 Last IDX %d\n", last_index);
16191 return 0; /* Empty rr list */
16193 spin_unlock_irq(&phba->hbalock);
16197 * Clear the rr_bmask and set all of the bits that are at this
16200 memset(phba->fcf.fcf_rr_bmask, 0,
16201 sizeof(*phba->fcf.fcf_rr_bmask));
16202 spin_lock_irq(&phba->hbalock);
16203 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
16204 if (fcf_pri->fcf_rec.flag & LPFC_FCF_FLOGI_FAILED)
16207 * the 1st priority that has not FLOGI failed
16208 * will be the highest.
16211 next_fcf_pri = fcf_pri->fcf_rec.priority;
16212 spin_unlock_irq(&phba->hbalock);
16213 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
16214 rc = lpfc_sli4_fcf_rr_index_set(phba,
16215 fcf_pri->fcf_rec.fcf_index);
16219 spin_lock_irq(&phba->hbalock);
16222 * if next_fcf_pri was not set above and the list is not empty then
16223 * we have failed flogis on all of them. So reset flogi failed
16224 * and start at the beginning.
16226 if (!next_fcf_pri && !list_empty(&phba->fcf.fcf_pri_list)) {
16227 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
16228 fcf_pri->fcf_rec.flag &= ~LPFC_FCF_FLOGI_FAILED;
16230 * the 1st priority that has not FLOGI failed
16231 * will be the highest.
16234 next_fcf_pri = fcf_pri->fcf_rec.priority;
16235 spin_unlock_irq(&phba->hbalock);
16236 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
16237 rc = lpfc_sli4_fcf_rr_index_set(phba,
16238 fcf_pri->fcf_rec.fcf_index);
16242 spin_lock_irq(&phba->hbalock);
16246 spin_unlock_irq(&phba->hbalock);
16251 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
16252 * @phba: pointer to lpfc hba data structure.
16254 * This routine is to get the next eligible FCF record index in a round
16255 * robin fashion. If the next eligible FCF record index equals to the
16256 * initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
16257 * shall be returned, otherwise, the next eligible FCF record's index
16258 * shall be returned.
16261 lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
16263 uint16_t next_fcf_index;
16266 /* Search start from next bit of currently registered FCF index */
16267 next_fcf_index = phba->fcf.current_rec.fcf_indx;
16270 /* Determine the next fcf index to check */
16271 next_fcf_index = (next_fcf_index + 1) % LPFC_SLI4_FCF_TBL_INDX_MAX;
16272 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
16273 LPFC_SLI4_FCF_TBL_INDX_MAX,
16276 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
16277 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
16279 * If we have wrapped then we need to clear the bits that
16280 * have been tested so that we can detect when we should
16281 * change the priority level.
16283 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
16284 LPFC_SLI4_FCF_TBL_INDX_MAX, 0);
16288 /* Check roundrobin failover list empty condition */
16289 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX ||
16290 next_fcf_index == phba->fcf.current_rec.fcf_indx) {
16292 * If next fcf index is not found check if there are lower
16293 * Priority level fcf's in the fcf_priority list.
16294 * Set up the rr_bmask with all of the avaiable fcf bits
16295 * at that level and continue the selection process.
16297 if (lpfc_check_next_fcf_pri_level(phba))
16298 goto initial_priority;
16299 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
16300 "2844 No roundrobin failover FCF available\n");
16301 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX)
16302 return LPFC_FCOE_FCF_NEXT_NONE;
16304 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
16305 "3063 Only FCF available idx %d, flag %x\n",
16307 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag);
16308 return next_fcf_index;
16312 if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX &&
16313 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag &
16314 LPFC_FCF_FLOGI_FAILED)
16315 goto next_priority;
16317 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
16318 "2845 Get next roundrobin failover FCF (x%x)\n",
16321 return next_fcf_index;
16325 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
16326 * @phba: pointer to lpfc hba data structure.
16328 * This routine sets the FCF record index in to the eligible bmask for
16329 * roundrobin failover search. It checks to make sure that the index
16330 * does not go beyond the range of the driver allocated bmask dimension
16331 * before setting the bit.
16333 * Returns 0 if the index bit successfully set, otherwise, it returns
16337 lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
16339 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
16340 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
16341 "2610 FCF (x%x) reached driver's book "
16342 "keeping dimension:x%x\n",
16343 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
16346 /* Set the eligible FCF record index bmask */
16347 set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
16349 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
16350 "2790 Set FCF (x%x) to roundrobin FCF failover "
16351 "bmask\n", fcf_index);
16357 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
16358 * @phba: pointer to lpfc hba data structure.
16360 * This routine clears the FCF record index from the eligible bmask for
16361 * roundrobin failover search. It checks to make sure that the index
16362 * does not go beyond the range of the driver allocated bmask dimension
16363 * before clearing the bit.
16366 lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
16368 struct lpfc_fcf_pri *fcf_pri, *fcf_pri_next;
16369 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
16370 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
16371 "2762 FCF (x%x) reached driver's book "
16372 "keeping dimension:x%x\n",
16373 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
16376 /* Clear the eligible FCF record index bmask */
16377 spin_lock_irq(&phba->hbalock);
16378 list_for_each_entry_safe(fcf_pri, fcf_pri_next, &phba->fcf.fcf_pri_list,
16380 if (fcf_pri->fcf_rec.fcf_index == fcf_index) {
16381 list_del_init(&fcf_pri->list);
16385 spin_unlock_irq(&phba->hbalock);
16386 clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
16388 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
16389 "2791 Clear FCF (x%x) from roundrobin failover "
16390 "bmask\n", fcf_index);
16394 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
16395 * @phba: pointer to lpfc hba data structure.
16397 * This routine is the completion routine for the rediscover FCF table mailbox
16398 * command. If the mailbox command returned failure, it will try to stop the
16399 * FCF rediscover wait timer.
16402 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
16404 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
16405 uint32_t shdr_status, shdr_add_status;
16407 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
16409 shdr_status = bf_get(lpfc_mbox_hdr_status,
16410 &redisc_fcf->header.cfg_shdr.response);
16411 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
16412 &redisc_fcf->header.cfg_shdr.response);
16413 if (shdr_status || shdr_add_status) {
16414 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
16415 "2746 Requesting for FCF rediscovery failed "
16416 "status x%x add_status x%x\n",
16417 shdr_status, shdr_add_status);
16418 if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
16419 spin_lock_irq(&phba->hbalock);
16420 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
16421 spin_unlock_irq(&phba->hbalock);
16423 * CVL event triggered FCF rediscover request failed,
16424 * last resort to re-try current registered FCF entry.
16426 lpfc_retry_pport_discovery(phba);
16428 spin_lock_irq(&phba->hbalock);
16429 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
16430 spin_unlock_irq(&phba->hbalock);
16432 * DEAD FCF event triggered FCF rediscover request
16433 * failed, last resort to fail over as a link down
16434 * to FCF registration.
16436 lpfc_sli4_fcf_dead_failthrough(phba);
16439 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
16440 "2775 Start FCF rediscover quiescent timer\n");
16442 * Start FCF rediscovery wait timer for pending FCF
16443 * before rescan FCF record table.
16445 lpfc_fcf_redisc_wait_start_timer(phba);
16448 mempool_free(mbox, phba->mbox_mem_pool);
16452 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
16453 * @phba: pointer to lpfc hba data structure.
16455 * This routine is invoked to request for rediscovery of the entire FCF table
16459 lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
16461 LPFC_MBOXQ_t *mbox;
16462 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
16465 /* Cancel retry delay timers to all vports before FCF rediscover */
16466 lpfc_cancel_all_vport_retry_delay_timer(phba);
16468 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16470 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16471 "2745 Failed to allocate mbox for "
16472 "requesting FCF rediscover.\n");
16476 length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
16477 sizeof(struct lpfc_sli4_cfg_mhdr));
16478 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16479 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
16480 length, LPFC_SLI4_MBX_EMBED);
16482 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
16483 /* Set count to 0 for invalidating the entire FCF database */
16484 bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
16486 /* Issue the mailbox command asynchronously */
16487 mbox->vport = phba->pport;
16488 mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
16489 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
16491 if (rc == MBX_NOT_FINISHED) {
16492 mempool_free(mbox, phba->mbox_mem_pool);
16499 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
16500 * @phba: pointer to lpfc hba data structure.
16502 * This function is the failover routine as a last resort to the FCF DEAD
16503 * event when driver failed to perform fast FCF failover.
16506 lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
16508 uint32_t link_state;
16511 * Last resort as FCF DEAD event failover will treat this as
16512 * a link down, but save the link state because we don't want
16513 * it to be changed to Link Down unless it is already down.
16515 link_state = phba->link_state;
16516 lpfc_linkdown(phba);
16517 phba->link_state = link_state;
16519 /* Unregister FCF if no devices connected to it */
16520 lpfc_unregister_unused_fcf(phba);
16524 * lpfc_sli_get_config_region23 - Get sli3 port region 23 data.
16525 * @phba: pointer to lpfc hba data structure.
16526 * @rgn23_data: pointer to configure region 23 data.
16528 * This function gets SLI3 port configure region 23 data through memory dump
16529 * mailbox command. When it successfully retrieves data, the size of the data
16530 * will be returned, otherwise, 0 will be returned.
16533 lpfc_sli_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
16535 LPFC_MBOXQ_t *pmb = NULL;
16537 uint32_t offset = 0;
16543 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16545 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16546 "2600 failed to allocate mailbox memory\n");
16552 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
16553 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
16555 if (rc != MBX_SUCCESS) {
16556 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
16557 "2601 failed to read config "
16558 "region 23, rc 0x%x Status 0x%x\n",
16559 rc, mb->mbxStatus);
16560 mb->un.varDmp.word_cnt = 0;
16563 * dump mem may return a zero when finished or we got a
16564 * mailbox error, either way we are done.
16566 if (mb->un.varDmp.word_cnt == 0)
16568 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
16569 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
16571 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
16572 rgn23_data + offset,
16573 mb->un.varDmp.word_cnt);
16574 offset += mb->un.varDmp.word_cnt;
16575 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
16577 mempool_free(pmb, phba->mbox_mem_pool);
16582 * lpfc_sli4_get_config_region23 - Get sli4 port region 23 data.
16583 * @phba: pointer to lpfc hba data structure.
16584 * @rgn23_data: pointer to configure region 23 data.
16586 * This function gets SLI4 port configure region 23 data through memory dump
16587 * mailbox command. When it successfully retrieves data, the size of the data
16588 * will be returned, otherwise, 0 will be returned.
16591 lpfc_sli4_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
16593 LPFC_MBOXQ_t *mboxq = NULL;
16594 struct lpfc_dmabuf *mp = NULL;
16595 struct lpfc_mqe *mqe;
16596 uint32_t data_length = 0;
16602 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16604 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16605 "3105 failed to allocate mailbox memory\n");
16609 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq))
16611 mqe = &mboxq->u.mqe;
16612 mp = (struct lpfc_dmabuf *) mboxq->context1;
16613 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
16616 data_length = mqe->un.mb_words[5];
16617 if (data_length == 0)
16619 if (data_length > DMP_RGN23_SIZE) {
16623 lpfc_sli_pcimem_bcopy((char *)mp->virt, rgn23_data, data_length);
16625 mempool_free(mboxq, phba->mbox_mem_pool);
16627 lpfc_mbuf_free(phba, mp->virt, mp->phys);
16630 return data_length;
16634 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
16635 * @phba: pointer to lpfc hba data structure.
16637 * This function read region 23 and parse TLV for port status to
16638 * decide if the user disaled the port. If the TLV indicates the
16639 * port is disabled, the hba_flag is set accordingly.
16642 lpfc_sli_read_link_ste(struct lpfc_hba *phba)
16644 uint8_t *rgn23_data = NULL;
16645 uint32_t if_type, data_size, sub_tlv_len, tlv_offset;
16646 uint32_t offset = 0;
16648 /* Get adapter Region 23 data */
16649 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
16653 if (phba->sli_rev < LPFC_SLI_REV4)
16654 data_size = lpfc_sli_get_config_region23(phba, rgn23_data);
16656 if_type = bf_get(lpfc_sli_intf_if_type,
16657 &phba->sli4_hba.sli_intf);
16658 if (if_type == LPFC_SLI_INTF_IF_TYPE_0)
16660 data_size = lpfc_sli4_get_config_region23(phba, rgn23_data);
16666 /* Check the region signature first */
16667 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
16668 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16669 "2619 Config region 23 has bad signature\n");
16674 /* Check the data structure version */
16675 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
16676 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16677 "2620 Config region 23 has bad version\n");
16682 /* Parse TLV entries in the region */
16683 while (offset < data_size) {
16684 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
16687 * If the TLV is not driver specific TLV or driver id is
16688 * not linux driver id, skip the record.
16690 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
16691 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
16692 (rgn23_data[offset + 3] != 0)) {
16693 offset += rgn23_data[offset + 1] * 4 + 4;
16697 /* Driver found a driver specific TLV in the config region */
16698 sub_tlv_len = rgn23_data[offset + 1] * 4;
16703 * Search for configured port state sub-TLV.
16705 while ((offset < data_size) &&
16706 (tlv_offset < sub_tlv_len)) {
16707 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
16712 if (rgn23_data[offset] != PORT_STE_TYPE) {
16713 offset += rgn23_data[offset + 1] * 4 + 4;
16714 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
16718 /* This HBA contains PORT_STE configured */
16719 if (!rgn23_data[offset + 2])
16720 phba->hba_flag |= LINK_DISABLED;
16732 * lpfc_wr_object - write an object to the firmware
16733 * @phba: HBA structure that indicates port to create a queue on.
16734 * @dmabuf_list: list of dmabufs to write to the port.
16735 * @size: the total byte value of the objects to write to the port.
16736 * @offset: the current offset to be used to start the transfer.
16738 * This routine will create a wr_object mailbox command to send to the port.
16739 * the mailbox command will be constructed using the dma buffers described in
16740 * @dmabuf_list to create a list of BDEs. This routine will fill in as many
16741 * BDEs that the imbedded mailbox can support. The @offset variable will be
16742 * used to indicate the starting offset of the transfer and will also return
16743 * the offset after the write object mailbox has completed. @size is used to
16744 * determine the end of the object and whether the eof bit should be set.
16746 * Return 0 is successful and offset will contain the the new offset to use
16747 * for the next write.
16748 * Return negative value for error cases.
16751 lpfc_wr_object(struct lpfc_hba *phba, struct list_head *dmabuf_list,
16752 uint32_t size, uint32_t *offset)
16754 struct lpfc_mbx_wr_object *wr_object;
16755 LPFC_MBOXQ_t *mbox;
16757 uint32_t shdr_status, shdr_add_status;
16759 union lpfc_sli4_cfg_shdr *shdr;
16760 struct lpfc_dmabuf *dmabuf;
16761 uint32_t written = 0;
16763 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16767 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16768 LPFC_MBOX_OPCODE_WRITE_OBJECT,
16769 sizeof(struct lpfc_mbx_wr_object) -
16770 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
16772 wr_object = (struct lpfc_mbx_wr_object *)&mbox->u.mqe.un.wr_object;
16773 wr_object->u.request.write_offset = *offset;
16774 sprintf((uint8_t *)wr_object->u.request.object_name, "/");
16775 wr_object->u.request.object_name[0] =
16776 cpu_to_le32(wr_object->u.request.object_name[0]);
16777 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 0);
16778 list_for_each_entry(dmabuf, dmabuf_list, list) {
16779 if (i >= LPFC_MBX_WR_CONFIG_MAX_BDE || written >= size)
16781 wr_object->u.request.bde[i].addrLow = putPaddrLow(dmabuf->phys);
16782 wr_object->u.request.bde[i].addrHigh =
16783 putPaddrHigh(dmabuf->phys);
16784 if (written + SLI4_PAGE_SIZE >= size) {
16785 wr_object->u.request.bde[i].tus.f.bdeSize =
16787 written += (size - written);
16788 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 1);
16790 wr_object->u.request.bde[i].tus.f.bdeSize =
16792 written += SLI4_PAGE_SIZE;
16796 wr_object->u.request.bde_count = i;
16797 bf_set(lpfc_wr_object_write_length, &wr_object->u.request, written);
16798 if (!phba->sli4_hba.intr_enable)
16799 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16801 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
16802 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16804 /* The IOCTL status is embedded in the mailbox subheader. */
16805 shdr = (union lpfc_sli4_cfg_shdr *) &wr_object->header.cfg_shdr;
16806 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16807 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16808 if (rc != MBX_TIMEOUT)
16809 mempool_free(mbox, phba->mbox_mem_pool);
16810 if (shdr_status || shdr_add_status || rc) {
16811 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16812 "3025 Write Object mailbox failed with "
16813 "status x%x add_status x%x, mbx status x%x\n",
16814 shdr_status, shdr_add_status, rc);
16817 *offset += wr_object->u.response.actual_write_length;
16822 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
16823 * @vport: pointer to vport data structure.
16825 * This function iterate through the mailboxq and clean up all REG_LOGIN
16826 * and REG_VPI mailbox commands associated with the vport. This function
16827 * is called when driver want to restart discovery of the vport due to
16828 * a Clear Virtual Link event.
16831 lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
16833 struct lpfc_hba *phba = vport->phba;
16834 LPFC_MBOXQ_t *mb, *nextmb;
16835 struct lpfc_dmabuf *mp;
16836 struct lpfc_nodelist *ndlp;
16837 struct lpfc_nodelist *act_mbx_ndlp = NULL;
16838 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
16839 LIST_HEAD(mbox_cmd_list);
16840 uint8_t restart_loop;
16842 /* Clean up internally queued mailbox commands with the vport */
16843 spin_lock_irq(&phba->hbalock);
16844 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
16845 if (mb->vport != vport)
16848 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
16849 (mb->u.mb.mbxCommand != MBX_REG_VPI))
16852 list_del(&mb->list);
16853 list_add_tail(&mb->list, &mbox_cmd_list);
16855 /* Clean up active mailbox command with the vport */
16856 mb = phba->sli.mbox_active;
16857 if (mb && (mb->vport == vport)) {
16858 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
16859 (mb->u.mb.mbxCommand == MBX_REG_VPI))
16860 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16861 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
16862 act_mbx_ndlp = (struct lpfc_nodelist *)mb->context2;
16863 /* Put reference count for delayed processing */
16864 act_mbx_ndlp = lpfc_nlp_get(act_mbx_ndlp);
16865 /* Unregister the RPI when mailbox complete */
16866 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
16869 /* Cleanup any mailbox completions which are not yet processed */
16872 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
16874 * If this mailox is already processed or it is
16875 * for another vport ignore it.
16877 if ((mb->vport != vport) ||
16878 (mb->mbox_flag & LPFC_MBX_IMED_UNREG))
16881 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
16882 (mb->u.mb.mbxCommand != MBX_REG_VPI))
16885 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16886 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
16887 ndlp = (struct lpfc_nodelist *)mb->context2;
16888 /* Unregister the RPI when mailbox complete */
16889 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
16891 spin_unlock_irq(&phba->hbalock);
16892 spin_lock(shost->host_lock);
16893 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
16894 spin_unlock(shost->host_lock);
16895 spin_lock_irq(&phba->hbalock);
16899 } while (restart_loop);
16901 spin_unlock_irq(&phba->hbalock);
16903 /* Release the cleaned-up mailbox commands */
16904 while (!list_empty(&mbox_cmd_list)) {
16905 list_remove_head(&mbox_cmd_list, mb, LPFC_MBOXQ_t, list);
16906 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
16907 mp = (struct lpfc_dmabuf *) (mb->context1);
16909 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
16912 ndlp = (struct lpfc_nodelist *) mb->context2;
16913 mb->context2 = NULL;
16915 spin_lock(shost->host_lock);
16916 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
16917 spin_unlock(shost->host_lock);
16918 lpfc_nlp_put(ndlp);
16921 mempool_free(mb, phba->mbox_mem_pool);
16924 /* Release the ndlp with the cleaned-up active mailbox command */
16925 if (act_mbx_ndlp) {
16926 spin_lock(shost->host_lock);
16927 act_mbx_ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
16928 spin_unlock(shost->host_lock);
16929 lpfc_nlp_put(act_mbx_ndlp);
16934 * lpfc_drain_txq - Drain the txq
16935 * @phba: Pointer to HBA context object.
16937 * This function attempt to submit IOCBs on the txq
16938 * to the adapter. For SLI4 adapters, the txq contains
16939 * ELS IOCBs that have been deferred because the there
16940 * are no SGLs. This congestion can occur with large
16941 * vport counts during node discovery.
16945 lpfc_drain_txq(struct lpfc_hba *phba)
16947 LIST_HEAD(completions);
16948 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
16949 struct lpfc_iocbq *piocbq = NULL;
16950 unsigned long iflags = 0;
16951 char *fail_msg = NULL;
16952 struct lpfc_sglq *sglq;
16953 union lpfc_wqe wqe;
16954 uint32_t txq_cnt = 0;
16956 spin_lock_irqsave(&pring->ring_lock, iflags);
16957 list_for_each_entry(piocbq, &pring->txq, list) {
16961 if (txq_cnt > pring->txq_max)
16962 pring->txq_max = txq_cnt;
16964 spin_unlock_irqrestore(&pring->ring_lock, iflags);
16966 while (!list_empty(&pring->txq)) {
16967 spin_lock_irqsave(&pring->ring_lock, iflags);
16969 piocbq = lpfc_sli_ringtx_get(phba, pring);
16971 spin_unlock_irqrestore(&pring->ring_lock, iflags);
16972 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16973 "2823 txq empty and txq_cnt is %d\n ",
16977 sglq = __lpfc_sli_get_sglq(phba, piocbq);
16979 __lpfc_sli_ringtx_put(phba, pring, piocbq);
16980 spin_unlock_irqrestore(&pring->ring_lock, iflags);
16985 /* The xri and iocb resources secured,
16986 * attempt to issue request
16988 piocbq->sli4_lxritag = sglq->sli4_lxritag;
16989 piocbq->sli4_xritag = sglq->sli4_xritag;
16990 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocbq, sglq))
16991 fail_msg = "to convert bpl to sgl";
16992 else if (lpfc_sli4_iocb2wqe(phba, piocbq, &wqe))
16993 fail_msg = "to convert iocb to wqe";
16994 else if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
16995 fail_msg = " - Wq is full";
16997 lpfc_sli_ringtxcmpl_put(phba, pring, piocbq);
17000 /* Failed means we can't issue and need to cancel */
17001 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17002 "2822 IOCB failed %s iotag 0x%x "
17005 piocbq->iotag, piocbq->sli4_xritag);
17006 list_add_tail(&piocbq->list, &completions);
17008 spin_unlock_irqrestore(&pring->ring_lock, iflags);
17011 /* Cancel all the IOCBs that cannot be issued */
17012 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
17013 IOERR_SLI_ABORTED);