1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2015 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
22 #include <linux/blkdev.h>
23 #include <linux/pci.h>
24 #include <linux/interrupt.h>
25 #include <linux/delay.h>
26 #include <linux/slab.h>
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 if (piocbq->iocb_flag & LPFC_IO_LOOPBACK)
927 ndlp = piocbq->context_un.ndlp;
929 ndlp = piocbq->context1;
932 list_remove_head(lpfc_sgl_list, sglq, struct lpfc_sglq, list);
937 if (lpfc_test_rrq_active(phba, ndlp, sglq->sli4_lxritag)) {
938 /* This xri has an rrq outstanding for this DID.
939 * put it back in the list and get another xri.
941 list_add_tail(&sglq->list, lpfc_sgl_list);
943 list_remove_head(lpfc_sgl_list, sglq,
944 struct lpfc_sglq, list);
945 if (sglq == start_sglq) {
953 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
954 sglq->state = SGL_ALLOCATED;
960 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
961 * @phba: Pointer to HBA context object.
963 * This function is called with no lock held. This function
964 * allocates a new driver iocb object from the iocb pool. If the
965 * allocation is successful, it returns pointer to the newly
966 * allocated iocb object else it returns NULL.
969 lpfc_sli_get_iocbq(struct lpfc_hba *phba)
971 struct lpfc_iocbq * iocbq = NULL;
972 unsigned long iflags;
974 spin_lock_irqsave(&phba->hbalock, iflags);
975 iocbq = __lpfc_sli_get_iocbq(phba);
976 spin_unlock_irqrestore(&phba->hbalock, iflags);
981 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
982 * @phba: Pointer to HBA context object.
983 * @iocbq: Pointer to driver iocb object.
985 * This function is called with hbalock held to release driver
986 * iocb object to the iocb pool. The iotag in the iocb object
987 * does not change for each use of the iocb object. This function
988 * clears all other fields of the iocb object when it is freed.
989 * The sqlq structure that holds the xritag and phys and virtual
990 * mappings for the scatter gather list is retrieved from the
991 * active array of sglq. The get of the sglq pointer also clears
992 * the entry in the array. If the status of the IO indiactes that
993 * this IO was aborted then the sglq entry it put on the
994 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
995 * IO has good status or fails for any other reason then the sglq
996 * entry is added to the free list (lpfc_sgl_list).
999 __lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1001 struct lpfc_sglq *sglq;
1002 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1003 unsigned long iflag = 0;
1004 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
1006 if (iocbq->sli4_xritag == NO_XRI)
1009 sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_lxritag);
1013 if ((iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) &&
1014 (sglq->state != SGL_XRI_ABORTED)) {
1015 spin_lock_irqsave(&phba->sli4_hba.abts_sgl_list_lock,
1017 list_add(&sglq->list,
1018 &phba->sli4_hba.lpfc_abts_els_sgl_list);
1019 spin_unlock_irqrestore(
1020 &phba->sli4_hba.abts_sgl_list_lock, iflag);
1022 spin_lock_irqsave(&pring->ring_lock, iflag);
1023 sglq->state = SGL_FREED;
1025 list_add_tail(&sglq->list,
1026 &phba->sli4_hba.lpfc_sgl_list);
1027 spin_unlock_irqrestore(&pring->ring_lock, iflag);
1029 /* Check if TXQ queue needs to be serviced */
1030 if (!list_empty(&pring->txq))
1031 lpfc_worker_wake_up(phba);
1037 * Clean all volatile data fields, preserve iotag and node struct.
1039 memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1040 iocbq->sli4_lxritag = NO_XRI;
1041 iocbq->sli4_xritag = NO_XRI;
1042 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1047 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
1048 * @phba: Pointer to HBA context object.
1049 * @iocbq: Pointer to driver iocb object.
1051 * This function is called with hbalock held to release driver
1052 * iocb object to the iocb pool. The iotag in the iocb object
1053 * does not change for each use of the iocb object. This function
1054 * clears all other fields of the iocb object when it is freed.
1057 __lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1059 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1063 * Clean all volatile data fields, preserve iotag and node struct.
1065 memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1066 iocbq->sli4_xritag = NO_XRI;
1067 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1071 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
1072 * @phba: Pointer to HBA context object.
1073 * @iocbq: Pointer to driver iocb object.
1075 * This function is called with hbalock held to release driver
1076 * iocb object to the iocb pool. The iotag in the iocb object
1077 * does not change for each use of the iocb object. This function
1078 * clears all other fields of the iocb object when it is freed.
1081 __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1083 phba->__lpfc_sli_release_iocbq(phba, iocbq);
1088 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
1089 * @phba: Pointer to HBA context object.
1090 * @iocbq: Pointer to driver iocb object.
1092 * This function is called with no lock held to release the iocb to
1096 lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1098 unsigned long iflags;
1101 * Clean all volatile data fields, preserve iotag and node struct.
1103 spin_lock_irqsave(&phba->hbalock, iflags);
1104 __lpfc_sli_release_iocbq(phba, iocbq);
1105 spin_unlock_irqrestore(&phba->hbalock, iflags);
1109 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
1110 * @phba: Pointer to HBA context object.
1111 * @iocblist: List of IOCBs.
1112 * @ulpstatus: ULP status in IOCB command field.
1113 * @ulpWord4: ULP word-4 in IOCB command field.
1115 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
1116 * on the list by invoking the complete callback function associated with the
1117 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
1121 lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
1122 uint32_t ulpstatus, uint32_t ulpWord4)
1124 struct lpfc_iocbq *piocb;
1126 while (!list_empty(iocblist)) {
1127 list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
1128 if (!piocb->iocb_cmpl)
1129 lpfc_sli_release_iocbq(phba, piocb);
1131 piocb->iocb.ulpStatus = ulpstatus;
1132 piocb->iocb.un.ulpWord[4] = ulpWord4;
1133 (piocb->iocb_cmpl) (phba, piocb, piocb);
1140 * lpfc_sli_iocb_cmd_type - Get the iocb type
1141 * @iocb_cmnd: iocb command code.
1143 * This function is called by ring event handler function to get the iocb type.
1144 * This function translates the iocb command to an iocb command type used to
1145 * decide the final disposition of each completed IOCB.
1146 * The function returns
1147 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
1148 * LPFC_SOL_IOCB if it is a solicited iocb completion
1149 * LPFC_ABORT_IOCB if it is an abort iocb
1150 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
1152 * The caller is not required to hold any lock.
1154 static lpfc_iocb_type
1155 lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
1157 lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
1159 if (iocb_cmnd > CMD_MAX_IOCB_CMD)
1162 switch (iocb_cmnd) {
1163 case CMD_XMIT_SEQUENCE_CR:
1164 case CMD_XMIT_SEQUENCE_CX:
1165 case CMD_XMIT_BCAST_CN:
1166 case CMD_XMIT_BCAST_CX:
1167 case CMD_ELS_REQUEST_CR:
1168 case CMD_ELS_REQUEST_CX:
1169 case CMD_CREATE_XRI_CR:
1170 case CMD_CREATE_XRI_CX:
1171 case CMD_GET_RPI_CN:
1172 case CMD_XMIT_ELS_RSP_CX:
1173 case CMD_GET_RPI_CR:
1174 case CMD_FCP_IWRITE_CR:
1175 case CMD_FCP_IWRITE_CX:
1176 case CMD_FCP_IREAD_CR:
1177 case CMD_FCP_IREAD_CX:
1178 case CMD_FCP_ICMND_CR:
1179 case CMD_FCP_ICMND_CX:
1180 case CMD_FCP_TSEND_CX:
1181 case CMD_FCP_TRSP_CX:
1182 case CMD_FCP_TRECEIVE_CX:
1183 case CMD_FCP_AUTO_TRSP_CX:
1184 case CMD_ADAPTER_MSG:
1185 case CMD_ADAPTER_DUMP:
1186 case CMD_XMIT_SEQUENCE64_CR:
1187 case CMD_XMIT_SEQUENCE64_CX:
1188 case CMD_XMIT_BCAST64_CN:
1189 case CMD_XMIT_BCAST64_CX:
1190 case CMD_ELS_REQUEST64_CR:
1191 case CMD_ELS_REQUEST64_CX:
1192 case CMD_FCP_IWRITE64_CR:
1193 case CMD_FCP_IWRITE64_CX:
1194 case CMD_FCP_IREAD64_CR:
1195 case CMD_FCP_IREAD64_CX:
1196 case CMD_FCP_ICMND64_CR:
1197 case CMD_FCP_ICMND64_CX:
1198 case CMD_FCP_TSEND64_CX:
1199 case CMD_FCP_TRSP64_CX:
1200 case CMD_FCP_TRECEIVE64_CX:
1201 case CMD_GEN_REQUEST64_CR:
1202 case CMD_GEN_REQUEST64_CX:
1203 case CMD_XMIT_ELS_RSP64_CX:
1204 case DSSCMD_IWRITE64_CR:
1205 case DSSCMD_IWRITE64_CX:
1206 case DSSCMD_IREAD64_CR:
1207 case DSSCMD_IREAD64_CX:
1208 type = LPFC_SOL_IOCB;
1210 case CMD_ABORT_XRI_CN:
1211 case CMD_ABORT_XRI_CX:
1212 case CMD_CLOSE_XRI_CN:
1213 case CMD_CLOSE_XRI_CX:
1214 case CMD_XRI_ABORTED_CX:
1215 case CMD_ABORT_MXRI64_CN:
1216 case CMD_XMIT_BLS_RSP64_CX:
1217 type = LPFC_ABORT_IOCB;
1219 case CMD_RCV_SEQUENCE_CX:
1220 case CMD_RCV_ELS_REQ_CX:
1221 case CMD_RCV_SEQUENCE64_CX:
1222 case CMD_RCV_ELS_REQ64_CX:
1223 case CMD_ASYNC_STATUS:
1224 case CMD_IOCB_RCV_SEQ64_CX:
1225 case CMD_IOCB_RCV_ELS64_CX:
1226 case CMD_IOCB_RCV_CONT64_CX:
1227 case CMD_IOCB_RET_XRI64_CX:
1228 type = LPFC_UNSOL_IOCB;
1230 case CMD_IOCB_XMIT_MSEQ64_CR:
1231 case CMD_IOCB_XMIT_MSEQ64_CX:
1232 case CMD_IOCB_RCV_SEQ_LIST64_CX:
1233 case CMD_IOCB_RCV_ELS_LIST64_CX:
1234 case CMD_IOCB_CLOSE_EXTENDED_CN:
1235 case CMD_IOCB_ABORT_EXTENDED_CN:
1236 case CMD_IOCB_RET_HBQE64_CN:
1237 case CMD_IOCB_FCP_IBIDIR64_CR:
1238 case CMD_IOCB_FCP_IBIDIR64_CX:
1239 case CMD_IOCB_FCP_ITASKMGT64_CX:
1240 case CMD_IOCB_LOGENTRY_CN:
1241 case CMD_IOCB_LOGENTRY_ASYNC_CN:
1242 printk("%s - Unhandled SLI-3 Command x%x\n",
1243 __func__, iocb_cmnd);
1244 type = LPFC_UNKNOWN_IOCB;
1247 type = LPFC_UNKNOWN_IOCB;
1255 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
1256 * @phba: Pointer to HBA context object.
1258 * This function is called from SLI initialization code
1259 * to configure every ring of the HBA's SLI interface. The
1260 * caller is not required to hold any lock. This function issues
1261 * a config_ring mailbox command for each ring.
1262 * This function returns zero if successful else returns a negative
1266 lpfc_sli_ring_map(struct lpfc_hba *phba)
1268 struct lpfc_sli *psli = &phba->sli;
1273 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1277 phba->link_state = LPFC_INIT_MBX_CMDS;
1278 for (i = 0; i < psli->num_rings; i++) {
1279 lpfc_config_ring(phba, i, pmb);
1280 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
1281 if (rc != MBX_SUCCESS) {
1282 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1283 "0446 Adapter failed to init (%d), "
1284 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
1286 rc, pmbox->mbxCommand,
1287 pmbox->mbxStatus, i);
1288 phba->link_state = LPFC_HBA_ERROR;
1293 mempool_free(pmb, phba->mbox_mem_pool);
1298 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
1299 * @phba: Pointer to HBA context object.
1300 * @pring: Pointer to driver SLI ring object.
1301 * @piocb: Pointer to the driver iocb object.
1303 * This function is called with hbalock held. The function adds the
1304 * new iocb to txcmplq of the given ring. This function always returns
1305 * 0. If this function is called for ELS ring, this function checks if
1306 * there is a vport associated with the ELS command. This function also
1307 * starts els_tmofunc timer if this is an ELS command.
1310 lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1311 struct lpfc_iocbq *piocb)
1313 list_add_tail(&piocb->list, &pring->txcmplq);
1314 piocb->iocb_flag |= LPFC_IO_ON_TXCMPLQ;
1316 if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
1317 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
1318 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN) &&
1319 (!(piocb->vport->load_flag & FC_UNLOADING))) {
1323 mod_timer(&piocb->vport->els_tmofunc,
1325 msecs_to_jiffies(1000 * (phba->fc_ratov << 1)));
1333 * lpfc_sli_ringtx_get - Get first element of the txq
1334 * @phba: Pointer to HBA context object.
1335 * @pring: Pointer to driver SLI ring object.
1337 * This function is called with hbalock held to get next
1338 * iocb in txq of the given ring. If there is any iocb in
1339 * the txq, the function returns first iocb in the list after
1340 * removing the iocb from the list, else it returns NULL.
1343 lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1345 struct lpfc_iocbq *cmd_iocb;
1347 list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
1352 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
1353 * @phba: Pointer to HBA context object.
1354 * @pring: Pointer to driver SLI ring object.
1356 * This function is called with hbalock held and the caller must post the
1357 * iocb without releasing the lock. If the caller releases the lock,
1358 * iocb slot returned by the function is not guaranteed to be available.
1359 * The function returns pointer to the next available iocb slot if there
1360 * is available slot in the ring, else it returns NULL.
1361 * If the get index of the ring is ahead of the put index, the function
1362 * will post an error attention event to the worker thread to take the
1363 * HBA to offline state.
1366 lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1368 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
1369 uint32_t max_cmd_idx = pring->sli.sli3.numCiocb;
1370 if ((pring->sli.sli3.next_cmdidx == pring->sli.sli3.cmdidx) &&
1371 (++pring->sli.sli3.next_cmdidx >= max_cmd_idx))
1372 pring->sli.sli3.next_cmdidx = 0;
1374 if (unlikely(pring->sli.sli3.local_getidx ==
1375 pring->sli.sli3.next_cmdidx)) {
1377 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
1379 if (unlikely(pring->sli.sli3.local_getidx >= max_cmd_idx)) {
1380 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1381 "0315 Ring %d issue: portCmdGet %d "
1382 "is bigger than cmd ring %d\n",
1384 pring->sli.sli3.local_getidx,
1387 phba->link_state = LPFC_HBA_ERROR;
1389 * All error attention handlers are posted to
1392 phba->work_ha |= HA_ERATT;
1393 phba->work_hs = HS_FFER3;
1395 lpfc_worker_wake_up(phba);
1400 if (pring->sli.sli3.local_getidx == pring->sli.sli3.next_cmdidx)
1404 return lpfc_cmd_iocb(phba, pring);
1408 * lpfc_sli_next_iotag - Get an iotag for the iocb
1409 * @phba: Pointer to HBA context object.
1410 * @iocbq: Pointer to driver iocb object.
1412 * This function gets an iotag for the iocb. If there is no unused iotag and
1413 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
1414 * array and assigns a new iotag.
1415 * The function returns the allocated iotag if successful, else returns zero.
1416 * Zero is not a valid iotag.
1417 * The caller is not required to hold any lock.
1420 lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1422 struct lpfc_iocbq **new_arr;
1423 struct lpfc_iocbq **old_arr;
1425 struct lpfc_sli *psli = &phba->sli;
1428 spin_lock_irq(&phba->hbalock);
1429 iotag = psli->last_iotag;
1430 if(++iotag < psli->iocbq_lookup_len) {
1431 psli->last_iotag = iotag;
1432 psli->iocbq_lookup[iotag] = iocbq;
1433 spin_unlock_irq(&phba->hbalock);
1434 iocbq->iotag = iotag;
1436 } else if (psli->iocbq_lookup_len < (0xffff
1437 - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
1438 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
1439 spin_unlock_irq(&phba->hbalock);
1440 new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *),
1443 spin_lock_irq(&phba->hbalock);
1444 old_arr = psli->iocbq_lookup;
1445 if (new_len <= psli->iocbq_lookup_len) {
1446 /* highly unprobable case */
1448 iotag = psli->last_iotag;
1449 if(++iotag < psli->iocbq_lookup_len) {
1450 psli->last_iotag = iotag;
1451 psli->iocbq_lookup[iotag] = iocbq;
1452 spin_unlock_irq(&phba->hbalock);
1453 iocbq->iotag = iotag;
1456 spin_unlock_irq(&phba->hbalock);
1459 if (psli->iocbq_lookup)
1460 memcpy(new_arr, old_arr,
1461 ((psli->last_iotag + 1) *
1462 sizeof (struct lpfc_iocbq *)));
1463 psli->iocbq_lookup = new_arr;
1464 psli->iocbq_lookup_len = new_len;
1465 psli->last_iotag = iotag;
1466 psli->iocbq_lookup[iotag] = iocbq;
1467 spin_unlock_irq(&phba->hbalock);
1468 iocbq->iotag = iotag;
1473 spin_unlock_irq(&phba->hbalock);
1475 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
1476 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1483 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
1484 * @phba: Pointer to HBA context object.
1485 * @pring: Pointer to driver SLI ring object.
1486 * @iocb: Pointer to iocb slot in the ring.
1487 * @nextiocb: Pointer to driver iocb object which need to be
1488 * posted to firmware.
1490 * This function is called with hbalock held to post a new iocb to
1491 * the firmware. This function copies the new iocb to ring iocb slot and
1492 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1493 * a completion call back for this iocb else the function will free the
1497 lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1498 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
1503 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
1506 if (pring->ringno == LPFC_ELS_RING) {
1507 lpfc_debugfs_slow_ring_trc(phba,
1508 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1509 *(((uint32_t *) &nextiocb->iocb) + 4),
1510 *(((uint32_t *) &nextiocb->iocb) + 6),
1511 *(((uint32_t *) &nextiocb->iocb) + 7));
1515 * Issue iocb command to adapter
1517 lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
1519 pring->stats.iocb_cmd++;
1522 * If there is no completion routine to call, we can release the
1523 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1524 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1526 if (nextiocb->iocb_cmpl)
1527 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
1529 __lpfc_sli_release_iocbq(phba, nextiocb);
1532 * Let the HBA know what IOCB slot will be the next one the
1533 * driver will put a command into.
1535 pring->sli.sli3.cmdidx = pring->sli.sli3.next_cmdidx;
1536 writel(pring->sli.sli3.cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
1540 * lpfc_sli_update_full_ring - Update the chip attention register
1541 * @phba: Pointer to HBA context object.
1542 * @pring: Pointer to driver SLI ring object.
1544 * The caller is not required to hold any lock for calling this function.
1545 * This function updates the chip attention bits for the ring to inform firmware
1546 * that there are pending work to be done for this ring and requests an
1547 * interrupt when there is space available in the ring. This function is
1548 * called when the driver is unable to post more iocbs to the ring due
1549 * to unavailability of space in the ring.
1552 lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1554 int ringno = pring->ringno;
1556 pring->flag |= LPFC_CALL_RING_AVAILABLE;
1561 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1562 * The HBA will tell us when an IOCB entry is available.
1564 writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
1565 readl(phba->CAregaddr); /* flush */
1567 pring->stats.iocb_cmd_full++;
1571 * lpfc_sli_update_ring - Update chip attention register
1572 * @phba: Pointer to HBA context object.
1573 * @pring: Pointer to driver SLI ring object.
1575 * This function updates the chip attention register bit for the
1576 * given ring to inform HBA that there is more work to be done
1577 * in this ring. The caller is not required to hold any lock.
1580 lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1582 int ringno = pring->ringno;
1585 * Tell the HBA that there is work to do in this ring.
1587 if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
1589 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
1590 readl(phba->CAregaddr); /* flush */
1595 * lpfc_sli_resume_iocb - Process iocbs in the txq
1596 * @phba: Pointer to HBA context object.
1597 * @pring: Pointer to driver SLI ring object.
1599 * This function is called with hbalock held to post pending iocbs
1600 * in the txq to the firmware. This function is called when driver
1601 * detects space available in the ring.
1604 lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1607 struct lpfc_iocbq *nextiocb;
1611 * (a) there is anything on the txq to send
1613 * (c) link attention events can be processed (fcp ring only)
1614 * (d) IOCB processing is not blocked by the outstanding mbox command.
1617 if (lpfc_is_link_up(phba) &&
1618 (!list_empty(&pring->txq)) &&
1619 (pring->ringno != phba->sli.fcp_ring ||
1620 phba->sli.sli_flag & LPFC_PROCESS_LA)) {
1622 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
1623 (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
1624 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
1627 lpfc_sli_update_ring(phba, pring);
1629 lpfc_sli_update_full_ring(phba, pring);
1636 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
1637 * @phba: Pointer to HBA context object.
1638 * @hbqno: HBQ number.
1640 * This function is called with hbalock held to get the next
1641 * available slot for the given HBQ. If there is free slot
1642 * available for the HBQ it will return pointer to the next available
1643 * HBQ entry else it will return NULL.
1645 static struct lpfc_hbq_entry *
1646 lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
1648 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1650 if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
1651 ++hbqp->next_hbqPutIdx >= hbqp->entry_count)
1652 hbqp->next_hbqPutIdx = 0;
1654 if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
1655 uint32_t raw_index = phba->hbq_get[hbqno];
1656 uint32_t getidx = le32_to_cpu(raw_index);
1658 hbqp->local_hbqGetIdx = getidx;
1660 if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
1661 lpfc_printf_log(phba, KERN_ERR,
1662 LOG_SLI | LOG_VPORT,
1663 "1802 HBQ %d: local_hbqGetIdx "
1664 "%u is > than hbqp->entry_count %u\n",
1665 hbqno, hbqp->local_hbqGetIdx,
1668 phba->link_state = LPFC_HBA_ERROR;
1672 if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
1676 return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
1681 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
1682 * @phba: Pointer to HBA context object.
1684 * This function is called with no lock held to free all the
1685 * hbq buffers while uninitializing the SLI interface. It also
1686 * frees the HBQ buffers returned by the firmware but not yet
1687 * processed by the upper layers.
1690 lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
1692 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
1693 struct hbq_dmabuf *hbq_buf;
1694 unsigned long flags;
1698 hbq_count = lpfc_sli_hbq_count();
1699 /* Return all memory used by all HBQs */
1700 spin_lock_irqsave(&phba->hbalock, flags);
1701 for (i = 0; i < hbq_count; ++i) {
1702 list_for_each_entry_safe(dmabuf, next_dmabuf,
1703 &phba->hbqs[i].hbq_buffer_list, list) {
1704 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1705 list_del(&hbq_buf->dbuf.list);
1706 (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
1708 phba->hbqs[i].buffer_count = 0;
1710 /* Return all HBQ buffer that are in-fly */
1711 list_for_each_entry_safe(dmabuf, next_dmabuf, &phba->rb_pend_list,
1713 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1714 list_del(&hbq_buf->dbuf.list);
1715 if (hbq_buf->tag == -1) {
1716 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1719 hbqno = hbq_buf->tag >> 16;
1720 if (hbqno >= LPFC_MAX_HBQS)
1721 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1724 (phba->hbqs[hbqno].hbq_free_buffer)(phba,
1729 /* Mark the HBQs not in use */
1730 phba->hbq_in_use = 0;
1731 spin_unlock_irqrestore(&phba->hbalock, flags);
1735 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
1736 * @phba: Pointer to HBA context object.
1737 * @hbqno: HBQ number.
1738 * @hbq_buf: Pointer to HBQ buffer.
1740 * This function is called with the hbalock held to post a
1741 * hbq buffer to the firmware. If the function finds an empty
1742 * slot in the HBQ, it will post the buffer. The function will return
1743 * pointer to the hbq entry if it successfully post the buffer
1744 * else it will return NULL.
1747 lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
1748 struct hbq_dmabuf *hbq_buf)
1750 return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
1754 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
1755 * @phba: Pointer to HBA context object.
1756 * @hbqno: HBQ number.
1757 * @hbq_buf: Pointer to HBQ buffer.
1759 * This function is called with the hbalock held to post a hbq buffer to the
1760 * firmware. If the function finds an empty slot in the HBQ, it will post the
1761 * buffer and place it on the hbq_buffer_list. The function will return zero if
1762 * it successfully post the buffer else it will return an error.
1765 lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
1766 struct hbq_dmabuf *hbq_buf)
1768 struct lpfc_hbq_entry *hbqe;
1769 dma_addr_t physaddr = hbq_buf->dbuf.phys;
1771 /* Get next HBQ entry slot to use */
1772 hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
1774 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1776 hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
1777 hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
1778 hbqe->bde.tus.f.bdeSize = hbq_buf->size;
1779 hbqe->bde.tus.f.bdeFlags = 0;
1780 hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
1781 hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
1783 hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
1784 writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
1786 readl(phba->hbq_put + hbqno);
1787 list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
1794 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
1795 * @phba: Pointer to HBA context object.
1796 * @hbqno: HBQ number.
1797 * @hbq_buf: Pointer to HBQ buffer.
1799 * This function is called with the hbalock held to post an RQE to the SLI4
1800 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
1801 * the hbq_buffer_list and return zero, otherwise it will return an error.
1804 lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
1805 struct hbq_dmabuf *hbq_buf)
1808 struct lpfc_rqe hrqe;
1809 struct lpfc_rqe drqe;
1811 hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
1812 hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
1813 drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
1814 drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
1815 rc = lpfc_sli4_rq_put(phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
1820 list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
1824 /* HBQ for ELS and CT traffic. */
1825 static struct lpfc_hbq_init lpfc_els_hbq = {
1830 .ring_mask = (1 << LPFC_ELS_RING),
1836 /* HBQ for the extra ring if needed */
1837 static struct lpfc_hbq_init lpfc_extra_hbq = {
1842 .ring_mask = (1 << LPFC_EXTRA_RING),
1849 struct lpfc_hbq_init *lpfc_hbq_defs[] = {
1855 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
1856 * @phba: Pointer to HBA context object.
1857 * @hbqno: HBQ number.
1858 * @count: Number of HBQ buffers to be posted.
1860 * This function is called with no lock held to post more hbq buffers to the
1861 * given HBQ. The function returns the number of HBQ buffers successfully
1865 lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
1867 uint32_t i, posted = 0;
1868 unsigned long flags;
1869 struct hbq_dmabuf *hbq_buffer;
1870 LIST_HEAD(hbq_buf_list);
1871 if (!phba->hbqs[hbqno].hbq_alloc_buffer)
1874 if ((phba->hbqs[hbqno].buffer_count + count) >
1875 lpfc_hbq_defs[hbqno]->entry_count)
1876 count = lpfc_hbq_defs[hbqno]->entry_count -
1877 phba->hbqs[hbqno].buffer_count;
1880 /* Allocate HBQ entries */
1881 for (i = 0; i < count; i++) {
1882 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
1885 list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
1887 /* Check whether HBQ is still in use */
1888 spin_lock_irqsave(&phba->hbalock, flags);
1889 if (!phba->hbq_in_use)
1891 while (!list_empty(&hbq_buf_list)) {
1892 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1894 hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
1896 if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
1897 phba->hbqs[hbqno].buffer_count++;
1900 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1902 spin_unlock_irqrestore(&phba->hbalock, flags);
1905 spin_unlock_irqrestore(&phba->hbalock, flags);
1906 while (!list_empty(&hbq_buf_list)) {
1907 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1909 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1915 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
1916 * @phba: Pointer to HBA context object.
1919 * This function posts more buffers to the HBQ. This function
1920 * is called with no lock held. The function returns the number of HBQ entries
1921 * successfully allocated.
1924 lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
1926 if (phba->sli_rev == LPFC_SLI_REV4)
1929 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1930 lpfc_hbq_defs[qno]->add_count);
1934 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
1935 * @phba: Pointer to HBA context object.
1936 * @qno: HBQ queue number.
1938 * This function is called from SLI initialization code path with
1939 * no lock held to post initial HBQ buffers to firmware. The
1940 * function returns the number of HBQ entries successfully allocated.
1943 lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
1945 if (phba->sli_rev == LPFC_SLI_REV4)
1946 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1947 lpfc_hbq_defs[qno]->entry_count);
1949 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1950 lpfc_hbq_defs[qno]->init_count);
1954 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
1955 * @phba: Pointer to HBA context object.
1956 * @hbqno: HBQ number.
1958 * This function removes the first hbq buffer on an hbq list and returns a
1959 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
1961 static struct hbq_dmabuf *
1962 lpfc_sli_hbqbuf_get(struct list_head *rb_list)
1964 struct lpfc_dmabuf *d_buf;
1966 list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
1969 return container_of(d_buf, struct hbq_dmabuf, dbuf);
1973 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
1974 * @phba: Pointer to HBA context object.
1975 * @tag: Tag of the hbq buffer.
1977 * This function is called with hbalock held. This function searches
1978 * for the hbq buffer associated with the given tag in the hbq buffer
1979 * list. If it finds the hbq buffer, it returns the hbq_buffer other wise
1982 static struct hbq_dmabuf *
1983 lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
1985 struct lpfc_dmabuf *d_buf;
1986 struct hbq_dmabuf *hbq_buf;
1990 if (hbqno >= LPFC_MAX_HBQS)
1993 spin_lock_irq(&phba->hbalock);
1994 list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
1995 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
1996 if (hbq_buf->tag == tag) {
1997 spin_unlock_irq(&phba->hbalock);
2001 spin_unlock_irq(&phba->hbalock);
2002 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT,
2003 "1803 Bad hbq tag. Data: x%x x%x\n",
2004 tag, phba->hbqs[tag >> 16].buffer_count);
2009 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
2010 * @phba: Pointer to HBA context object.
2011 * @hbq_buffer: Pointer to HBQ buffer.
2013 * This function is called with hbalock. This function gives back
2014 * the hbq buffer to firmware. If the HBQ does not have space to
2015 * post the buffer, it will free the buffer.
2018 lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
2023 hbqno = hbq_buffer->tag >> 16;
2024 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
2025 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
2030 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
2031 * @mbxCommand: mailbox command code.
2033 * This function is called by the mailbox event handler function to verify
2034 * that the completed mailbox command is a legitimate mailbox command. If the
2035 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
2036 * and the mailbox event handler will take the HBA offline.
2039 lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
2043 switch (mbxCommand) {
2047 case MBX_WRITE_VPARMS:
2048 case MBX_RUN_BIU_DIAG:
2051 case MBX_CONFIG_LINK:
2052 case MBX_CONFIG_RING:
2053 case MBX_RESET_RING:
2054 case MBX_READ_CONFIG:
2055 case MBX_READ_RCONFIG:
2056 case MBX_READ_SPARM:
2057 case MBX_READ_STATUS:
2061 case MBX_READ_LNK_STAT:
2063 case MBX_UNREG_LOGIN:
2065 case MBX_DUMP_MEMORY:
2066 case MBX_DUMP_CONTEXT:
2069 case MBX_UPDATE_CFG:
2071 case MBX_DEL_LD_ENTRY:
2072 case MBX_RUN_PROGRAM:
2074 case MBX_SET_VARIABLE:
2075 case MBX_UNREG_D_ID:
2076 case MBX_KILL_BOARD:
2077 case MBX_CONFIG_FARP:
2080 case MBX_RUN_BIU_DIAG64:
2081 case MBX_CONFIG_PORT:
2082 case MBX_READ_SPARM64:
2083 case MBX_READ_RPI64:
2084 case MBX_REG_LOGIN64:
2085 case MBX_READ_TOPOLOGY:
2088 case MBX_LOAD_EXP_ROM:
2089 case MBX_ASYNCEVT_ENABLE:
2093 case MBX_PORT_CAPABILITIES:
2094 case MBX_PORT_IOV_CONTROL:
2095 case MBX_SLI4_CONFIG:
2096 case MBX_SLI4_REQ_FTRS:
2098 case MBX_UNREG_FCFI:
2103 case MBX_RESUME_RPI:
2104 case MBX_READ_EVENT_LOG_STATUS:
2105 case MBX_READ_EVENT_LOG:
2106 case MBX_SECURITY_MGMT:
2108 case MBX_ACCESS_VDATA:
2119 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
2120 * @phba: Pointer to HBA context object.
2121 * @pmboxq: Pointer to mailbox command.
2123 * This is completion handler function for mailbox commands issued from
2124 * lpfc_sli_issue_mbox_wait function. This function is called by the
2125 * mailbox event handler function with no lock held. This function
2126 * will wake up thread waiting on the wait queue pointed by context1
2130 lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
2132 wait_queue_head_t *pdone_q;
2133 unsigned long drvr_flag;
2136 * If pdone_q is empty, the driver thread gave up waiting and
2137 * continued running.
2139 pmboxq->mbox_flag |= LPFC_MBX_WAKE;
2140 spin_lock_irqsave(&phba->hbalock, drvr_flag);
2141 pdone_q = (wait_queue_head_t *) pmboxq->context1;
2143 wake_up_interruptible(pdone_q);
2144 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
2150 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
2151 * @phba: Pointer to HBA context object.
2152 * @pmb: Pointer to mailbox object.
2154 * This function is the default mailbox completion handler. It
2155 * frees the memory resources associated with the completed mailbox
2156 * command. If the completed command is a REG_LOGIN mailbox command,
2157 * this function will issue a UREG_LOGIN to re-claim the RPI.
2160 lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2162 struct lpfc_vport *vport = pmb->vport;
2163 struct lpfc_dmabuf *mp;
2164 struct lpfc_nodelist *ndlp;
2165 struct Scsi_Host *shost;
2169 mp = (struct lpfc_dmabuf *) (pmb->context1);
2172 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2177 * If a REG_LOGIN succeeded after node is destroyed or node
2178 * is in re-discovery driver need to cleanup the RPI.
2180 if (!(phba->pport->load_flag & FC_UNLOADING) &&
2181 pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
2182 !pmb->u.mb.mbxStatus) {
2183 rpi = pmb->u.mb.un.varWords[0];
2184 vpi = pmb->u.mb.un.varRegLogin.vpi;
2185 lpfc_unreg_login(phba, vpi, rpi, pmb);
2186 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2187 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2188 if (rc != MBX_NOT_FINISHED)
2192 if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) &&
2193 !(phba->pport->load_flag & FC_UNLOADING) &&
2194 !pmb->u.mb.mbxStatus) {
2195 shost = lpfc_shost_from_vport(vport);
2196 spin_lock_irq(shost->host_lock);
2197 vport->vpi_state |= LPFC_VPI_REGISTERED;
2198 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
2199 spin_unlock_irq(shost->host_lock);
2202 if (pmb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
2203 ndlp = (struct lpfc_nodelist *)pmb->context2;
2205 pmb->context2 = NULL;
2208 /* Check security permission status on INIT_LINK mailbox command */
2209 if ((pmb->u.mb.mbxCommand == MBX_INIT_LINK) &&
2210 (pmb->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
2211 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2212 "2860 SLI authentication is required "
2213 "for INIT_LINK but has not done yet\n");
2215 if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
2216 lpfc_sli4_mbox_cmd_free(phba, pmb);
2218 mempool_free(pmb, phba->mbox_mem_pool);
2221 * lpfc_sli4_unreg_rpi_cmpl_clr - mailbox completion handler
2222 * @phba: Pointer to HBA context object.
2223 * @pmb: Pointer to mailbox object.
2225 * This function is the unreg rpi mailbox completion handler. It
2226 * frees the memory resources associated with the completed mailbox
2227 * command. An additional refrenece is put on the ndlp to prevent
2228 * lpfc_nlp_release from freeing the rpi bit in the bitmask before
2229 * the unreg mailbox command completes, this routine puts the
2234 lpfc_sli4_unreg_rpi_cmpl_clr(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2236 struct lpfc_vport *vport = pmb->vport;
2237 struct lpfc_nodelist *ndlp;
2239 ndlp = pmb->context1;
2240 if (pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) {
2241 if (phba->sli_rev == LPFC_SLI_REV4 &&
2242 (bf_get(lpfc_sli_intf_if_type,
2243 &phba->sli4_hba.sli_intf) ==
2244 LPFC_SLI_INTF_IF_TYPE_2)) {
2246 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
2247 "0010 UNREG_LOGIN vpi:%x "
2248 "rpi:%x DID:%x map:%x %p\n",
2249 vport->vpi, ndlp->nlp_rpi,
2251 ndlp->nlp_usg_map, ndlp);
2258 mempool_free(pmb, phba->mbox_mem_pool);
2262 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
2263 * @phba: Pointer to HBA context object.
2265 * This function is called with no lock held. This function processes all
2266 * the completed mailbox commands and gives it to upper layers. The interrupt
2267 * service routine processes mailbox completion interrupt and adds completed
2268 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
2269 * Worker thread call lpfc_sli_handle_mb_event, which will return the
2270 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
2271 * function returns the mailbox commands to the upper layer by calling the
2272 * completion handler function of each mailbox.
2275 lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
2282 phba->sli.slistat.mbox_event++;
2284 /* Get all completed mailboxe buffers into the cmplq */
2285 spin_lock_irq(&phba->hbalock);
2286 list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
2287 spin_unlock_irq(&phba->hbalock);
2289 /* Get a Mailbox buffer to setup mailbox commands for callback */
2291 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
2297 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
2299 lpfc_debugfs_disc_trc(pmb->vport,
2300 LPFC_DISC_TRC_MBOX_VPORT,
2301 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
2302 (uint32_t)pmbox->mbxCommand,
2303 pmbox->un.varWords[0],
2304 pmbox->un.varWords[1]);
2307 lpfc_debugfs_disc_trc(phba->pport,
2309 "MBOX cmpl: cmd:x%x mb:x%x x%x",
2310 (uint32_t)pmbox->mbxCommand,
2311 pmbox->un.varWords[0],
2312 pmbox->un.varWords[1]);
2317 * It is a fatal error if unknown mbox command completion.
2319 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
2321 /* Unknown mailbox command compl */
2322 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2323 "(%d):0323 Unknown Mailbox command "
2324 "x%x (x%x/x%x) Cmpl\n",
2325 pmb->vport ? pmb->vport->vpi : 0,
2327 lpfc_sli_config_mbox_subsys_get(phba,
2329 lpfc_sli_config_mbox_opcode_get(phba,
2331 phba->link_state = LPFC_HBA_ERROR;
2332 phba->work_hs = HS_FFER3;
2333 lpfc_handle_eratt(phba);
2337 if (pmbox->mbxStatus) {
2338 phba->sli.slistat.mbox_stat_err++;
2339 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
2340 /* Mbox cmd cmpl error - RETRYing */
2341 lpfc_printf_log(phba, KERN_INFO,
2343 "(%d):0305 Mbox cmd cmpl "
2344 "error - RETRYing Data: x%x "
2345 "(x%x/x%x) x%x x%x x%x\n",
2346 pmb->vport ? pmb->vport->vpi : 0,
2348 lpfc_sli_config_mbox_subsys_get(phba,
2350 lpfc_sli_config_mbox_opcode_get(phba,
2353 pmbox->un.varWords[0],
2354 pmb->vport->port_state);
2355 pmbox->mbxStatus = 0;
2356 pmbox->mbxOwner = OWN_HOST;
2357 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2358 if (rc != MBX_NOT_FINISHED)
2363 /* Mailbox cmd <cmd> Cmpl <cmpl> */
2364 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
2365 "(%d):0307 Mailbox cmd x%x (x%x/x%x) Cmpl x%p "
2366 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
2368 pmb->vport ? pmb->vport->vpi : 0,
2370 lpfc_sli_config_mbox_subsys_get(phba, pmb),
2371 lpfc_sli_config_mbox_opcode_get(phba, pmb),
2373 *((uint32_t *) pmbox),
2374 pmbox->un.varWords[0],
2375 pmbox->un.varWords[1],
2376 pmbox->un.varWords[2],
2377 pmbox->un.varWords[3],
2378 pmbox->un.varWords[4],
2379 pmbox->un.varWords[5],
2380 pmbox->un.varWords[6],
2381 pmbox->un.varWords[7],
2382 pmbox->un.varWords[8],
2383 pmbox->un.varWords[9],
2384 pmbox->un.varWords[10]);
2387 pmb->mbox_cmpl(phba,pmb);
2393 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
2394 * @phba: Pointer to HBA context object.
2395 * @pring: Pointer to driver SLI ring object.
2398 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
2399 * is set in the tag the buffer is posted for a particular exchange,
2400 * the function will return the buffer without replacing the buffer.
2401 * If the buffer is for unsolicited ELS or CT traffic, this function
2402 * returns the buffer and also posts another buffer to the firmware.
2404 static struct lpfc_dmabuf *
2405 lpfc_sli_get_buff(struct lpfc_hba *phba,
2406 struct lpfc_sli_ring *pring,
2409 struct hbq_dmabuf *hbq_entry;
2411 if (tag & QUE_BUFTAG_BIT)
2412 return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
2413 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
2416 return &hbq_entry->dbuf;
2420 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
2421 * @phba: Pointer to HBA context object.
2422 * @pring: Pointer to driver SLI ring object.
2423 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
2424 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
2425 * @fch_type: the type for the first frame of the sequence.
2427 * This function is called with no lock held. This function uses the r_ctl and
2428 * type of the received sequence to find the correct callback function to call
2429 * to process the sequence.
2432 lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2433 struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
2438 /* unSolicited Responses */
2439 if (pring->prt[0].profile) {
2440 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
2441 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
2445 /* We must search, based on rctl / type
2446 for the right routine */
2447 for (i = 0; i < pring->num_mask; i++) {
2448 if ((pring->prt[i].rctl == fch_r_ctl) &&
2449 (pring->prt[i].type == fch_type)) {
2450 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
2451 (pring->prt[i].lpfc_sli_rcv_unsol_event)
2452 (phba, pring, saveq);
2460 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
2461 * @phba: Pointer to HBA context object.
2462 * @pring: Pointer to driver SLI ring object.
2463 * @saveq: Pointer to the unsolicited iocb.
2465 * This function is called with no lock held by the ring event handler
2466 * when there is an unsolicited iocb posted to the response ring by the
2467 * firmware. This function gets the buffer associated with the iocbs
2468 * and calls the event handler for the ring. This function handles both
2469 * qring buffers and hbq buffers.
2470 * When the function returns 1 the caller can free the iocb object otherwise
2471 * upper layer functions will free the iocb objects.
2474 lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2475 struct lpfc_iocbq *saveq)
2479 uint32_t Rctl, Type;
2480 struct lpfc_iocbq *iocbq;
2481 struct lpfc_dmabuf *dmzbuf;
2483 irsp = &(saveq->iocb);
2485 if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
2486 if (pring->lpfc_sli_rcv_async_status)
2487 pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
2489 lpfc_printf_log(phba,
2492 "0316 Ring %d handler: unexpected "
2493 "ASYNC_STATUS iocb received evt_code "
2496 irsp->un.asyncstat.evt_code);
2500 if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
2501 (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
2502 if (irsp->ulpBdeCount > 0) {
2503 dmzbuf = lpfc_sli_get_buff(phba, pring,
2504 irsp->un.ulpWord[3]);
2505 lpfc_in_buf_free(phba, dmzbuf);
2508 if (irsp->ulpBdeCount > 1) {
2509 dmzbuf = lpfc_sli_get_buff(phba, pring,
2510 irsp->unsli3.sli3Words[3]);
2511 lpfc_in_buf_free(phba, dmzbuf);
2514 if (irsp->ulpBdeCount > 2) {
2515 dmzbuf = lpfc_sli_get_buff(phba, pring,
2516 irsp->unsli3.sli3Words[7]);
2517 lpfc_in_buf_free(phba, dmzbuf);
2523 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
2524 if (irsp->ulpBdeCount != 0) {
2525 saveq->context2 = lpfc_sli_get_buff(phba, pring,
2526 irsp->un.ulpWord[3]);
2527 if (!saveq->context2)
2528 lpfc_printf_log(phba,
2531 "0341 Ring %d Cannot find buffer for "
2532 "an unsolicited iocb. tag 0x%x\n",
2534 irsp->un.ulpWord[3]);
2536 if (irsp->ulpBdeCount == 2) {
2537 saveq->context3 = lpfc_sli_get_buff(phba, pring,
2538 irsp->unsli3.sli3Words[7]);
2539 if (!saveq->context3)
2540 lpfc_printf_log(phba,
2543 "0342 Ring %d Cannot find buffer for an"
2544 " unsolicited iocb. tag 0x%x\n",
2546 irsp->unsli3.sli3Words[7]);
2548 list_for_each_entry(iocbq, &saveq->list, list) {
2549 irsp = &(iocbq->iocb);
2550 if (irsp->ulpBdeCount != 0) {
2551 iocbq->context2 = lpfc_sli_get_buff(phba, pring,
2552 irsp->un.ulpWord[3]);
2553 if (!iocbq->context2)
2554 lpfc_printf_log(phba,
2557 "0343 Ring %d Cannot find "
2558 "buffer for an unsolicited iocb"
2559 ". tag 0x%x\n", pring->ringno,
2560 irsp->un.ulpWord[3]);
2562 if (irsp->ulpBdeCount == 2) {
2563 iocbq->context3 = lpfc_sli_get_buff(phba, pring,
2564 irsp->unsli3.sli3Words[7]);
2565 if (!iocbq->context3)
2566 lpfc_printf_log(phba,
2569 "0344 Ring %d Cannot find "
2570 "buffer for an unsolicited "
2573 irsp->unsli3.sli3Words[7]);
2577 if (irsp->ulpBdeCount != 0 &&
2578 (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
2579 irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
2582 /* search continue save q for same XRI */
2583 list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
2584 if (iocbq->iocb.unsli3.rcvsli3.ox_id ==
2585 saveq->iocb.unsli3.rcvsli3.ox_id) {
2586 list_add_tail(&saveq->list, &iocbq->list);
2592 list_add_tail(&saveq->clist,
2593 &pring->iocb_continue_saveq);
2594 if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
2595 list_del_init(&iocbq->clist);
2597 irsp = &(saveq->iocb);
2601 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
2602 (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
2603 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
2604 Rctl = FC_RCTL_ELS_REQ;
2607 w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
2608 Rctl = w5p->hcsw.Rctl;
2609 Type = w5p->hcsw.Type;
2611 /* Firmware Workaround */
2612 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
2613 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
2614 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
2615 Rctl = FC_RCTL_ELS_REQ;
2617 w5p->hcsw.Rctl = Rctl;
2618 w5p->hcsw.Type = Type;
2622 if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
2623 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2624 "0313 Ring %d handler: unexpected Rctl x%x "
2625 "Type x%x received\n",
2626 pring->ringno, Rctl, Type);
2632 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
2633 * @phba: Pointer to HBA context object.
2634 * @pring: Pointer to driver SLI ring object.
2635 * @prspiocb: Pointer to response iocb object.
2637 * This function looks up the iocb_lookup table to get the command iocb
2638 * corresponding to the given response iocb using the iotag of the
2639 * response iocb. This function is called with the hbalock held.
2640 * This function returns the command iocb object if it finds the command
2641 * iocb else returns NULL.
2643 static struct lpfc_iocbq *
2644 lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
2645 struct lpfc_sli_ring *pring,
2646 struct lpfc_iocbq *prspiocb)
2648 struct lpfc_iocbq *cmd_iocb = NULL;
2651 iotag = prspiocb->iocb.ulpIoTag;
2653 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2654 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2655 list_del_init(&cmd_iocb->list);
2656 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
2657 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
2662 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2663 "0317 iotag x%x is out off "
2664 "range: max iotag x%x wd0 x%x\n",
2665 iotag, phba->sli.last_iotag,
2666 *(((uint32_t *) &prspiocb->iocb) + 7));
2671 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2672 * @phba: Pointer to HBA context object.
2673 * @pring: Pointer to driver SLI ring object.
2676 * This function looks up the iocb_lookup table to get the command iocb
2677 * corresponding to the given iotag. This function is called with the
2679 * This function returns the command iocb object if it finds the command
2680 * iocb else returns NULL.
2682 static struct lpfc_iocbq *
2683 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
2684 struct lpfc_sli_ring *pring, uint16_t iotag)
2686 struct lpfc_iocbq *cmd_iocb;
2688 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2689 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2690 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
2691 /* remove from txcmpl queue list */
2692 list_del_init(&cmd_iocb->list);
2693 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
2697 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2698 "0372 iotag x%x is out off range: max iotag (x%x)\n",
2699 iotag, phba->sli.last_iotag);
2704 * lpfc_sli_process_sol_iocb - process solicited iocb completion
2705 * @phba: Pointer to HBA context object.
2706 * @pring: Pointer to driver SLI ring object.
2707 * @saveq: Pointer to the response iocb to be processed.
2709 * This function is called by the ring event handler for non-fcp
2710 * rings when there is a new response iocb in the response ring.
2711 * The caller is not required to hold any locks. This function
2712 * gets the command iocb associated with the response iocb and
2713 * calls the completion handler for the command iocb. If there
2714 * is no completion handler, the function will free the resources
2715 * associated with command iocb. If the response iocb is for
2716 * an already aborted command iocb, the status of the completion
2717 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
2718 * This function always returns 1.
2721 lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2722 struct lpfc_iocbq *saveq)
2724 struct lpfc_iocbq *cmdiocbp;
2726 unsigned long iflag;
2728 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
2729 spin_lock_irqsave(&phba->hbalock, iflag);
2730 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
2731 spin_unlock_irqrestore(&phba->hbalock, iflag);
2734 if (cmdiocbp->iocb_cmpl) {
2736 * If an ELS command failed send an event to mgmt
2739 if (saveq->iocb.ulpStatus &&
2740 (pring->ringno == LPFC_ELS_RING) &&
2741 (cmdiocbp->iocb.ulpCommand ==
2742 CMD_ELS_REQUEST64_CR))
2743 lpfc_send_els_failure_event(phba,
2747 * Post all ELS completions to the worker thread.
2748 * All other are passed to the completion callback.
2750 if (pring->ringno == LPFC_ELS_RING) {
2751 if ((phba->sli_rev < LPFC_SLI_REV4) &&
2752 (cmdiocbp->iocb_flag &
2753 LPFC_DRIVER_ABORTED)) {
2754 spin_lock_irqsave(&phba->hbalock,
2756 cmdiocbp->iocb_flag &=
2757 ~LPFC_DRIVER_ABORTED;
2758 spin_unlock_irqrestore(&phba->hbalock,
2760 saveq->iocb.ulpStatus =
2761 IOSTAT_LOCAL_REJECT;
2762 saveq->iocb.un.ulpWord[4] =
2765 /* Firmware could still be in progress
2766 * of DMAing payload, so don't free data
2767 * buffer till after a hbeat.
2769 spin_lock_irqsave(&phba->hbalock,
2771 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
2772 spin_unlock_irqrestore(&phba->hbalock,
2775 if (phba->sli_rev == LPFC_SLI_REV4) {
2776 if (saveq->iocb_flag &
2777 LPFC_EXCHANGE_BUSY) {
2778 /* Set cmdiocb flag for the
2779 * exchange busy so sgl (xri)
2780 * will not be released until
2781 * the abort xri is received
2785 &phba->hbalock, iflag);
2786 cmdiocbp->iocb_flag |=
2788 spin_unlock_irqrestore(
2789 &phba->hbalock, iflag);
2791 if (cmdiocbp->iocb_flag &
2792 LPFC_DRIVER_ABORTED) {
2794 * Clear LPFC_DRIVER_ABORTED
2795 * bit in case it was driver
2799 &phba->hbalock, iflag);
2800 cmdiocbp->iocb_flag &=
2801 ~LPFC_DRIVER_ABORTED;
2802 spin_unlock_irqrestore(
2803 &phba->hbalock, iflag);
2804 cmdiocbp->iocb.ulpStatus =
2805 IOSTAT_LOCAL_REJECT;
2806 cmdiocbp->iocb.un.ulpWord[4] =
2807 IOERR_ABORT_REQUESTED;
2809 * For SLI4, irsiocb contains
2810 * NO_XRI in sli_xritag, it
2811 * shall not affect releasing
2812 * sgl (xri) process.
2814 saveq->iocb.ulpStatus =
2815 IOSTAT_LOCAL_REJECT;
2816 saveq->iocb.un.ulpWord[4] =
2819 &phba->hbalock, iflag);
2821 LPFC_DELAY_MEM_FREE;
2822 spin_unlock_irqrestore(
2823 &phba->hbalock, iflag);
2827 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
2829 lpfc_sli_release_iocbq(phba, cmdiocbp);
2832 * Unknown initiating command based on the response iotag.
2833 * This could be the case on the ELS ring because of
2836 if (pring->ringno != LPFC_ELS_RING) {
2838 * Ring <ringno> handler: unexpected completion IoTag
2841 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2842 "0322 Ring %d handler: "
2843 "unexpected completion IoTag x%x "
2844 "Data: x%x x%x x%x x%x\n",
2846 saveq->iocb.ulpIoTag,
2847 saveq->iocb.ulpStatus,
2848 saveq->iocb.un.ulpWord[4],
2849 saveq->iocb.ulpCommand,
2850 saveq->iocb.ulpContext);
2858 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
2859 * @phba: Pointer to HBA context object.
2860 * @pring: Pointer to driver SLI ring object.
2862 * This function is called from the iocb ring event handlers when
2863 * put pointer is ahead of the get pointer for a ring. This function signal
2864 * an error attention condition to the worker thread and the worker
2865 * thread will transition the HBA to offline state.
2868 lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
2870 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2872 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
2873 * rsp ring <portRspMax>
2875 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2876 "0312 Ring %d handler: portRspPut %d "
2877 "is bigger than rsp ring %d\n",
2878 pring->ringno, le32_to_cpu(pgp->rspPutInx),
2879 pring->sli.sli3.numRiocb);
2881 phba->link_state = LPFC_HBA_ERROR;
2884 * All error attention handlers are posted to
2887 phba->work_ha |= HA_ERATT;
2888 phba->work_hs = HS_FFER3;
2890 lpfc_worker_wake_up(phba);
2896 * lpfc_poll_eratt - Error attention polling timer timeout handler
2897 * @ptr: Pointer to address of HBA context object.
2899 * This function is invoked by the Error Attention polling timer when the
2900 * timer times out. It will check the SLI Error Attention register for
2901 * possible attention events. If so, it will post an Error Attention event
2902 * and wake up worker thread to process it. Otherwise, it will set up the
2903 * Error Attention polling timer for the next poll.
2905 void lpfc_poll_eratt(unsigned long ptr)
2907 struct lpfc_hba *phba;
2909 uint64_t sli_intr, cnt;
2911 phba = (struct lpfc_hba *)ptr;
2913 /* Here we will also keep track of interrupts per sec of the hba */
2914 sli_intr = phba->sli.slistat.sli_intr;
2916 if (phba->sli.slistat.sli_prev_intr > sli_intr)
2917 cnt = (((uint64_t)(-1) - phba->sli.slistat.sli_prev_intr) +
2920 cnt = (sli_intr - phba->sli.slistat.sli_prev_intr);
2922 /* 64-bit integer division not supporte on 32-bit x86 - use do_div */
2923 do_div(cnt, LPFC_ERATT_POLL_INTERVAL);
2924 phba->sli.slistat.sli_ips = cnt;
2926 phba->sli.slistat.sli_prev_intr = sli_intr;
2928 /* Check chip HA register for error event */
2929 eratt = lpfc_sli_check_eratt(phba);
2932 /* Tell the worker thread there is work to do */
2933 lpfc_worker_wake_up(phba);
2935 /* Restart the timer for next eratt poll */
2936 mod_timer(&phba->eratt_poll,
2938 msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
2944 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
2945 * @phba: Pointer to HBA context object.
2946 * @pring: Pointer to driver SLI ring object.
2947 * @mask: Host attention register mask for this ring.
2949 * This function is called from the interrupt context when there is a ring
2950 * event for the fcp ring. The caller does not hold any lock.
2951 * The function processes each response iocb in the response ring until it
2952 * finds an iocb with LE bit set and chains all the iocbs up to the iocb with
2953 * LE bit set. The function will call the completion handler of the command iocb
2954 * if the response iocb indicates a completion for a command iocb or it is
2955 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
2956 * function if this is an unsolicited iocb.
2957 * This routine presumes LPFC_FCP_RING handling and doesn't bother
2958 * to check it explicitly.
2961 lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
2962 struct lpfc_sli_ring *pring, uint32_t mask)
2964 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2965 IOCB_t *irsp = NULL;
2966 IOCB_t *entry = NULL;
2967 struct lpfc_iocbq *cmdiocbq = NULL;
2968 struct lpfc_iocbq rspiocbq;
2970 uint32_t portRspPut, portRspMax;
2972 lpfc_iocb_type type;
2973 unsigned long iflag;
2974 uint32_t rsp_cmpl = 0;
2976 spin_lock_irqsave(&phba->hbalock, iflag);
2977 pring->stats.iocb_event++;
2980 * The next available response entry should never exceed the maximum
2981 * entries. If it does, treat it as an adapter hardware error.
2983 portRspMax = pring->sli.sli3.numRiocb;
2984 portRspPut = le32_to_cpu(pgp->rspPutInx);
2985 if (unlikely(portRspPut >= portRspMax)) {
2986 lpfc_sli_rsp_pointers_error(phba, pring);
2987 spin_unlock_irqrestore(&phba->hbalock, iflag);
2990 if (phba->fcp_ring_in_use) {
2991 spin_unlock_irqrestore(&phba->hbalock, iflag);
2994 phba->fcp_ring_in_use = 1;
2997 while (pring->sli.sli3.rspidx != portRspPut) {
2999 * Fetch an entry off the ring and copy it into a local data
3000 * structure. The copy involves a byte-swap since the
3001 * network byte order and pci byte orders are different.
3003 entry = lpfc_resp_iocb(phba, pring);
3004 phba->last_completion_time = jiffies;
3006 if (++pring->sli.sli3.rspidx >= portRspMax)
3007 pring->sli.sli3.rspidx = 0;
3009 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
3010 (uint32_t *) &rspiocbq.iocb,
3011 phba->iocb_rsp_size);
3012 INIT_LIST_HEAD(&(rspiocbq.list));
3013 irsp = &rspiocbq.iocb;
3015 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
3016 pring->stats.iocb_rsp++;
3019 if (unlikely(irsp->ulpStatus)) {
3021 * If resource errors reported from HBA, reduce
3022 * queuedepths of the SCSI device.
3024 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3025 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3026 IOERR_NO_RESOURCES)) {
3027 spin_unlock_irqrestore(&phba->hbalock, iflag);
3028 phba->lpfc_rampdown_queue_depth(phba);
3029 spin_lock_irqsave(&phba->hbalock, iflag);
3032 /* Rsp ring <ringno> error: IOCB */
3033 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3034 "0336 Rsp Ring %d error: IOCB Data: "
3035 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
3037 irsp->un.ulpWord[0],
3038 irsp->un.ulpWord[1],
3039 irsp->un.ulpWord[2],
3040 irsp->un.ulpWord[3],
3041 irsp->un.ulpWord[4],
3042 irsp->un.ulpWord[5],
3043 *(uint32_t *)&irsp->un1,
3044 *((uint32_t *)&irsp->un1 + 1));
3048 case LPFC_ABORT_IOCB:
3051 * Idle exchange closed via ABTS from port. No iocb
3052 * resources need to be recovered.
3054 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
3055 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3056 "0333 IOCB cmd 0x%x"
3057 " processed. Skipping"
3063 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
3065 if (unlikely(!cmdiocbq))
3067 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED)
3068 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
3069 if (cmdiocbq->iocb_cmpl) {
3070 spin_unlock_irqrestore(&phba->hbalock, iflag);
3071 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
3073 spin_lock_irqsave(&phba->hbalock, iflag);
3076 case LPFC_UNSOL_IOCB:
3077 spin_unlock_irqrestore(&phba->hbalock, iflag);
3078 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
3079 spin_lock_irqsave(&phba->hbalock, iflag);
3082 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3083 char adaptermsg[LPFC_MAX_ADPTMSG];
3084 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3085 memcpy(&adaptermsg[0], (uint8_t *) irsp,
3087 dev_warn(&((phba->pcidev)->dev),
3089 phba->brd_no, adaptermsg);
3091 /* Unknown IOCB command */
3092 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3093 "0334 Unknown IOCB command "
3094 "Data: x%x, x%x x%x x%x x%x\n",
3095 type, irsp->ulpCommand,
3104 * The response IOCB has been processed. Update the ring
3105 * pointer in SLIM. If the port response put pointer has not
3106 * been updated, sync the pgp->rspPutInx and fetch the new port
3107 * response put pointer.
3109 writel(pring->sli.sli3.rspidx,
3110 &phba->host_gp[pring->ringno].rspGetInx);
3112 if (pring->sli.sli3.rspidx == portRspPut)
3113 portRspPut = le32_to_cpu(pgp->rspPutInx);
3116 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
3117 pring->stats.iocb_rsp_full++;
3118 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3119 writel(status, phba->CAregaddr);
3120 readl(phba->CAregaddr);
3122 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3123 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3124 pring->stats.iocb_cmd_empty++;
3126 /* Force update of the local copy of cmdGetInx */
3127 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3128 lpfc_sli_resume_iocb(phba, pring);
3130 if ((pring->lpfc_sli_cmd_available))
3131 (pring->lpfc_sli_cmd_available) (phba, pring);
3135 phba->fcp_ring_in_use = 0;
3136 spin_unlock_irqrestore(&phba->hbalock, iflag);
3141 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
3142 * @phba: Pointer to HBA context object.
3143 * @pring: Pointer to driver SLI ring object.
3144 * @rspiocbp: Pointer to driver response IOCB object.
3146 * This function is called from the worker thread when there is a slow-path
3147 * response IOCB to process. This function chains all the response iocbs until
3148 * seeing the iocb with the LE bit set. The function will call
3149 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
3150 * completion of a command iocb. The function will call the
3151 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
3152 * The function frees the resources or calls the completion handler if this
3153 * iocb is an abort completion. The function returns NULL when the response
3154 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
3155 * this function shall chain the iocb on to the iocb_continueq and return the
3156 * response iocb passed in.
3158 static struct lpfc_iocbq *
3159 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3160 struct lpfc_iocbq *rspiocbp)
3162 struct lpfc_iocbq *saveq;
3163 struct lpfc_iocbq *cmdiocbp;
3164 struct lpfc_iocbq *next_iocb;
3165 IOCB_t *irsp = NULL;
3166 uint32_t free_saveq;
3167 uint8_t iocb_cmd_type;
3168 lpfc_iocb_type type;
3169 unsigned long iflag;
3172 spin_lock_irqsave(&phba->hbalock, iflag);
3173 /* First add the response iocb to the countinueq list */
3174 list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
3175 pring->iocb_continueq_cnt++;
3177 /* Now, determine whether the list is completed for processing */
3178 irsp = &rspiocbp->iocb;
3181 * By default, the driver expects to free all resources
3182 * associated with this iocb completion.
3185 saveq = list_get_first(&pring->iocb_continueq,
3186 struct lpfc_iocbq, list);
3187 irsp = &(saveq->iocb);
3188 list_del_init(&pring->iocb_continueq);
3189 pring->iocb_continueq_cnt = 0;
3191 pring->stats.iocb_rsp++;
3194 * If resource errors reported from HBA, reduce
3195 * queuedepths of the SCSI device.
3197 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3198 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3199 IOERR_NO_RESOURCES)) {
3200 spin_unlock_irqrestore(&phba->hbalock, iflag);
3201 phba->lpfc_rampdown_queue_depth(phba);
3202 spin_lock_irqsave(&phba->hbalock, iflag);
3205 if (irsp->ulpStatus) {
3206 /* Rsp ring <ringno> error: IOCB */
3207 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3208 "0328 Rsp Ring %d error: "
3213 "x%x x%x x%x x%x\n",
3215 irsp->un.ulpWord[0],
3216 irsp->un.ulpWord[1],
3217 irsp->un.ulpWord[2],
3218 irsp->un.ulpWord[3],
3219 irsp->un.ulpWord[4],
3220 irsp->un.ulpWord[5],
3221 *(((uint32_t *) irsp) + 6),
3222 *(((uint32_t *) irsp) + 7),
3223 *(((uint32_t *) irsp) + 8),
3224 *(((uint32_t *) irsp) + 9),
3225 *(((uint32_t *) irsp) + 10),
3226 *(((uint32_t *) irsp) + 11),
3227 *(((uint32_t *) irsp) + 12),
3228 *(((uint32_t *) irsp) + 13),
3229 *(((uint32_t *) irsp) + 14),
3230 *(((uint32_t *) irsp) + 15));
3234 * Fetch the IOCB command type and call the correct completion
3235 * routine. Solicited and Unsolicited IOCBs on the ELS ring
3236 * get freed back to the lpfc_iocb_list by the discovery
3239 iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
3240 type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
3243 spin_unlock_irqrestore(&phba->hbalock, iflag);
3244 rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
3245 spin_lock_irqsave(&phba->hbalock, iflag);
3248 case LPFC_UNSOL_IOCB:
3249 spin_unlock_irqrestore(&phba->hbalock, iflag);
3250 rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
3251 spin_lock_irqsave(&phba->hbalock, iflag);
3256 case LPFC_ABORT_IOCB:
3258 if (irsp->ulpCommand != CMD_XRI_ABORTED_CX)
3259 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
3262 /* Call the specified completion routine */
3263 if (cmdiocbp->iocb_cmpl) {
3264 spin_unlock_irqrestore(&phba->hbalock,
3266 (cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
3268 spin_lock_irqsave(&phba->hbalock,
3271 __lpfc_sli_release_iocbq(phba,
3276 case LPFC_UNKNOWN_IOCB:
3277 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3278 char adaptermsg[LPFC_MAX_ADPTMSG];
3279 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3280 memcpy(&adaptermsg[0], (uint8_t *)irsp,
3282 dev_warn(&((phba->pcidev)->dev),
3284 phba->brd_no, adaptermsg);
3286 /* Unknown IOCB command */
3287 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3288 "0335 Unknown IOCB "
3289 "command Data: x%x "
3300 list_for_each_entry_safe(rspiocbp, next_iocb,
3301 &saveq->list, list) {
3302 list_del_init(&rspiocbp->list);
3303 __lpfc_sli_release_iocbq(phba, rspiocbp);
3305 __lpfc_sli_release_iocbq(phba, saveq);
3309 spin_unlock_irqrestore(&phba->hbalock, iflag);
3314 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
3315 * @phba: Pointer to HBA context object.
3316 * @pring: Pointer to driver SLI ring object.
3317 * @mask: Host attention register mask for this ring.
3319 * This routine wraps the actual slow_ring event process routine from the
3320 * API jump table function pointer from the lpfc_hba struct.
3323 lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
3324 struct lpfc_sli_ring *pring, uint32_t mask)
3326 phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
3330 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
3331 * @phba: Pointer to HBA context object.
3332 * @pring: Pointer to driver SLI ring object.
3333 * @mask: Host attention register mask for this ring.
3335 * This function is called from the worker thread when there is a ring event
3336 * for non-fcp rings. The caller does not hold any lock. The function will
3337 * remove each response iocb in the response ring and calls the handle
3338 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3341 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
3342 struct lpfc_sli_ring *pring, uint32_t mask)
3344 struct lpfc_pgp *pgp;
3346 IOCB_t *irsp = NULL;
3347 struct lpfc_iocbq *rspiocbp = NULL;
3348 uint32_t portRspPut, portRspMax;
3349 unsigned long iflag;
3352 pgp = &phba->port_gp[pring->ringno];
3353 spin_lock_irqsave(&phba->hbalock, iflag);
3354 pring->stats.iocb_event++;
3357 * The next available response entry should never exceed the maximum
3358 * entries. If it does, treat it as an adapter hardware error.
3360 portRspMax = pring->sli.sli3.numRiocb;
3361 portRspPut = le32_to_cpu(pgp->rspPutInx);
3362 if (portRspPut >= portRspMax) {
3364 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
3365 * rsp ring <portRspMax>
3367 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3368 "0303 Ring %d handler: portRspPut %d "
3369 "is bigger than rsp ring %d\n",
3370 pring->ringno, portRspPut, portRspMax);
3372 phba->link_state = LPFC_HBA_ERROR;
3373 spin_unlock_irqrestore(&phba->hbalock, iflag);
3375 phba->work_hs = HS_FFER3;
3376 lpfc_handle_eratt(phba);
3382 while (pring->sli.sli3.rspidx != portRspPut) {
3384 * Build a completion list and call the appropriate handler.
3385 * The process is to get the next available response iocb, get
3386 * a free iocb from the list, copy the response data into the
3387 * free iocb, insert to the continuation list, and update the
3388 * next response index to slim. This process makes response
3389 * iocb's in the ring available to DMA as fast as possible but
3390 * pays a penalty for a copy operation. Since the iocb is
3391 * only 32 bytes, this penalty is considered small relative to
3392 * the PCI reads for register values and a slim write. When
3393 * the ulpLe field is set, the entire Command has been
3396 entry = lpfc_resp_iocb(phba, pring);
3398 phba->last_completion_time = jiffies;
3399 rspiocbp = __lpfc_sli_get_iocbq(phba);
3400 if (rspiocbp == NULL) {
3401 printk(KERN_ERR "%s: out of buffers! Failing "
3402 "completion.\n", __func__);
3406 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
3407 phba->iocb_rsp_size);
3408 irsp = &rspiocbp->iocb;
3410 if (++pring->sli.sli3.rspidx >= portRspMax)
3411 pring->sli.sli3.rspidx = 0;
3413 if (pring->ringno == LPFC_ELS_RING) {
3414 lpfc_debugfs_slow_ring_trc(phba,
3415 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
3416 *(((uint32_t *) irsp) + 4),
3417 *(((uint32_t *) irsp) + 6),
3418 *(((uint32_t *) irsp) + 7));
3421 writel(pring->sli.sli3.rspidx,
3422 &phba->host_gp[pring->ringno].rspGetInx);
3424 spin_unlock_irqrestore(&phba->hbalock, iflag);
3425 /* Handle the response IOCB */
3426 rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
3427 spin_lock_irqsave(&phba->hbalock, iflag);
3430 * If the port response put pointer has not been updated, sync
3431 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
3432 * response put pointer.
3434 if (pring->sli.sli3.rspidx == portRspPut) {
3435 portRspPut = le32_to_cpu(pgp->rspPutInx);
3437 } /* while (pring->sli.sli3.rspidx != portRspPut) */
3439 if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
3440 /* At least one response entry has been freed */
3441 pring->stats.iocb_rsp_full++;
3442 /* SET RxRE_RSP in Chip Att register */
3443 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3444 writel(status, phba->CAregaddr);
3445 readl(phba->CAregaddr); /* flush */
3447 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3448 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3449 pring->stats.iocb_cmd_empty++;
3451 /* Force update of the local copy of cmdGetInx */
3452 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3453 lpfc_sli_resume_iocb(phba, pring);
3455 if ((pring->lpfc_sli_cmd_available))
3456 (pring->lpfc_sli_cmd_available) (phba, pring);
3460 spin_unlock_irqrestore(&phba->hbalock, iflag);
3465 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
3466 * @phba: Pointer to HBA context object.
3467 * @pring: Pointer to driver SLI ring object.
3468 * @mask: Host attention register mask for this ring.
3470 * This function is called from the worker thread when there is a pending
3471 * ELS response iocb on the driver internal slow-path response iocb worker
3472 * queue. The caller does not hold any lock. The function will remove each
3473 * response iocb from the response worker queue and calls the handle
3474 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3477 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
3478 struct lpfc_sli_ring *pring, uint32_t mask)
3480 struct lpfc_iocbq *irspiocbq;
3481 struct hbq_dmabuf *dmabuf;
3482 struct lpfc_cq_event *cq_event;
3483 unsigned long iflag;
3485 spin_lock_irqsave(&phba->hbalock, iflag);
3486 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
3487 spin_unlock_irqrestore(&phba->hbalock, iflag);
3488 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
3489 /* Get the response iocb from the head of work queue */
3490 spin_lock_irqsave(&phba->hbalock, iflag);
3491 list_remove_head(&phba->sli4_hba.sp_queue_event,
3492 cq_event, struct lpfc_cq_event, list);
3493 spin_unlock_irqrestore(&phba->hbalock, iflag);
3495 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
3496 case CQE_CODE_COMPL_WQE:
3497 irspiocbq = container_of(cq_event, struct lpfc_iocbq,
3499 /* Translate ELS WCQE to response IOCBQ */
3500 irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba,
3503 lpfc_sli_sp_handle_rspiocb(phba, pring,
3506 case CQE_CODE_RECEIVE:
3507 case CQE_CODE_RECEIVE_V1:
3508 dmabuf = container_of(cq_event, struct hbq_dmabuf,
3510 lpfc_sli4_handle_received_buffer(phba, dmabuf);
3519 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
3520 * @phba: Pointer to HBA context object.
3521 * @pring: Pointer to driver SLI ring object.
3523 * This function aborts all iocbs in the given ring and frees all the iocb
3524 * objects in txq. This function issues an abort iocb for all the iocb commands
3525 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3526 * the return of this function. The caller is not required to hold any locks.
3529 lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3531 LIST_HEAD(completions);
3532 struct lpfc_iocbq *iocb, *next_iocb;
3534 if (pring->ringno == LPFC_ELS_RING) {
3535 lpfc_fabric_abort_hba(phba);
3538 /* Error everything on txq and txcmplq
3541 if (phba->sli_rev >= LPFC_SLI_REV4) {
3542 spin_lock_irq(&pring->ring_lock);
3543 list_splice_init(&pring->txq, &completions);
3545 spin_unlock_irq(&pring->ring_lock);
3547 spin_lock_irq(&phba->hbalock);
3548 /* Next issue ABTS for everything on the txcmplq */
3549 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3550 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3551 spin_unlock_irq(&phba->hbalock);
3553 spin_lock_irq(&phba->hbalock);
3554 list_splice_init(&pring->txq, &completions);
3557 /* Next issue ABTS for everything on the txcmplq */
3558 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3559 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3560 spin_unlock_irq(&phba->hbalock);
3563 /* Cancel all the IOCBs from the completions list */
3564 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3569 * lpfc_sli_abort_fcp_rings - Abort all iocbs in all FCP rings
3570 * @phba: Pointer to HBA context object.
3571 * @pring: Pointer to driver SLI ring object.
3573 * This function aborts all iocbs in FCP rings and frees all the iocb
3574 * objects in txq. This function issues an abort iocb for all the iocb commands
3575 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3576 * the return of this function. The caller is not required to hold any locks.
3579 lpfc_sli_abort_fcp_rings(struct lpfc_hba *phba)
3581 struct lpfc_sli *psli = &phba->sli;
3582 struct lpfc_sli_ring *pring;
3585 /* Look on all the FCP Rings for the iotag */
3586 if (phba->sli_rev >= LPFC_SLI_REV4) {
3587 for (i = 0; i < phba->cfg_fcp_io_channel; i++) {
3588 pring = &psli->ring[i + MAX_SLI3_CONFIGURED_RINGS];
3589 lpfc_sli_abort_iocb_ring(phba, pring);
3592 pring = &psli->ring[psli->fcp_ring];
3593 lpfc_sli_abort_iocb_ring(phba, pring);
3599 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
3600 * @phba: Pointer to HBA context object.
3602 * This function flushes all iocbs in the fcp ring and frees all the iocb
3603 * objects in txq and txcmplq. This function will not issue abort iocbs
3604 * for all the iocb commands in txcmplq, they will just be returned with
3605 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3606 * slot has been permanently disabled.
3609 lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba)
3613 struct lpfc_sli *psli = &phba->sli;
3614 struct lpfc_sli_ring *pring;
3617 spin_lock_irq(&phba->hbalock);
3618 /* Indicate the I/O queues are flushed */
3619 phba->hba_flag |= HBA_FCP_IOQ_FLUSH;
3620 spin_unlock_irq(&phba->hbalock);
3622 /* Look on all the FCP Rings for the iotag */
3623 if (phba->sli_rev >= LPFC_SLI_REV4) {
3624 for (i = 0; i < phba->cfg_fcp_io_channel; i++) {
3625 pring = &psli->ring[i + MAX_SLI3_CONFIGURED_RINGS];
3627 spin_lock_irq(&pring->ring_lock);
3628 /* Retrieve everything on txq */
3629 list_splice_init(&pring->txq, &txq);
3630 /* Retrieve everything on the txcmplq */
3631 list_splice_init(&pring->txcmplq, &txcmplq);
3633 pring->txcmplq_cnt = 0;
3634 spin_unlock_irq(&pring->ring_lock);
3637 lpfc_sli_cancel_iocbs(phba, &txq,
3638 IOSTAT_LOCAL_REJECT,
3640 /* Flush the txcmpq */
3641 lpfc_sli_cancel_iocbs(phba, &txcmplq,
3642 IOSTAT_LOCAL_REJECT,
3646 pring = &psli->ring[psli->fcp_ring];
3648 spin_lock_irq(&phba->hbalock);
3649 /* Retrieve everything on txq */
3650 list_splice_init(&pring->txq, &txq);
3651 /* Retrieve everything on the txcmplq */
3652 list_splice_init(&pring->txcmplq, &txcmplq);
3654 pring->txcmplq_cnt = 0;
3655 spin_unlock_irq(&phba->hbalock);
3658 lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
3660 /* Flush the txcmpq */
3661 lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
3667 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
3668 * @phba: Pointer to HBA context object.
3669 * @mask: Bit mask to be checked.
3671 * This function reads the host status register and compares
3672 * with the provided bit mask to check if HBA completed
3673 * the restart. This function will wait in a loop for the
3674 * HBA to complete restart. If the HBA does not restart within
3675 * 15 iterations, the function will reset the HBA again. The
3676 * function returns 1 when HBA fail to restart otherwise returns
3680 lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
3686 /* Read the HBA Host Status Register */
3687 if (lpfc_readl(phba->HSregaddr, &status))
3691 * Check status register every 100ms for 5 retries, then every
3692 * 500ms for 5, then every 2.5 sec for 5, then reset board and
3693 * every 2.5 sec for 4.
3694 * Break our of the loop if errors occurred during init.
3696 while (((status & mask) != mask) &&
3697 !(status & HS_FFERM) &&
3709 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3710 lpfc_sli_brdrestart(phba);
3712 /* Read the HBA Host Status Register */
3713 if (lpfc_readl(phba->HSregaddr, &status)) {
3719 /* Check to see if any errors occurred during init */
3720 if ((status & HS_FFERM) || (i >= 20)) {
3721 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3722 "2751 Adapter failed to restart, "
3723 "status reg x%x, FW Data: A8 x%x AC x%x\n",
3725 readl(phba->MBslimaddr + 0xa8),
3726 readl(phba->MBslimaddr + 0xac));
3727 phba->link_state = LPFC_HBA_ERROR;
3735 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3736 * @phba: Pointer to HBA context object.
3737 * @mask: Bit mask to be checked.
3739 * This function checks the host status register to check if HBA is
3740 * ready. This function will wait in a loop for the HBA to be ready
3741 * If the HBA is not ready , the function will will reset the HBA PCI
3742 * function again. The function returns 1 when HBA fail to be ready
3743 * otherwise returns zero.
3746 lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
3751 /* Read the HBA Host Status Register */
3752 status = lpfc_sli4_post_status_check(phba);
3755 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3756 lpfc_sli_brdrestart(phba);
3757 status = lpfc_sli4_post_status_check(phba);
3760 /* Check to see if any errors occurred during init */
3762 phba->link_state = LPFC_HBA_ERROR;
3765 phba->sli4_hba.intr_enable = 0;
3771 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3772 * @phba: Pointer to HBA context object.
3773 * @mask: Bit mask to be checked.
3775 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3776 * from the API jump table function pointer from the lpfc_hba struct.
3779 lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
3781 return phba->lpfc_sli_brdready(phba, mask);
3784 #define BARRIER_TEST_PATTERN (0xdeadbeef)
3787 * lpfc_reset_barrier - Make HBA ready for HBA reset
3788 * @phba: Pointer to HBA context object.
3790 * This function is called before resetting an HBA. This function is called
3791 * with hbalock held and requests HBA to quiesce DMAs before a reset.
3793 void lpfc_reset_barrier(struct lpfc_hba *phba)
3795 uint32_t __iomem *resp_buf;
3796 uint32_t __iomem *mbox_buf;
3797 volatile uint32_t mbox;
3798 uint32_t hc_copy, ha_copy, resp_data;
3802 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
3803 if (hdrtype != 0x80 ||
3804 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
3805 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
3809 * Tell the other part of the chip to suspend temporarily all
3812 resp_buf = phba->MBslimaddr;
3814 /* Disable the error attention */
3815 if (lpfc_readl(phba->HCregaddr, &hc_copy))
3817 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
3818 readl(phba->HCregaddr); /* flush */
3819 phba->link_flag |= LS_IGNORE_ERATT;
3821 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3823 if (ha_copy & HA_ERATT) {
3824 /* Clear Chip error bit */
3825 writel(HA_ERATT, phba->HAregaddr);
3826 phba->pport->stopped = 1;
3830 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
3831 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
3833 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
3834 mbox_buf = phba->MBslimaddr;
3835 writel(mbox, mbox_buf);
3837 for (i = 0; i < 50; i++) {
3838 if (lpfc_readl((resp_buf + 1), &resp_data))
3840 if (resp_data != ~(BARRIER_TEST_PATTERN))
3846 if (lpfc_readl((resp_buf + 1), &resp_data))
3848 if (resp_data != ~(BARRIER_TEST_PATTERN)) {
3849 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
3850 phba->pport->stopped)
3856 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
3858 for (i = 0; i < 500; i++) {
3859 if (lpfc_readl(resp_buf, &resp_data))
3861 if (resp_data != mbox)
3870 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3872 if (!(ha_copy & HA_ERATT))
3878 if (readl(phba->HAregaddr) & HA_ERATT) {
3879 writel(HA_ERATT, phba->HAregaddr);
3880 phba->pport->stopped = 1;
3884 phba->link_flag &= ~LS_IGNORE_ERATT;
3885 writel(hc_copy, phba->HCregaddr);
3886 readl(phba->HCregaddr); /* flush */
3890 * lpfc_sli_brdkill - Issue a kill_board mailbox command
3891 * @phba: Pointer to HBA context object.
3893 * This function issues a kill_board mailbox command and waits for
3894 * the error attention interrupt. This function is called for stopping
3895 * the firmware processing. The caller is not required to hold any
3896 * locks. This function calls lpfc_hba_down_post function to free
3897 * any pending commands after the kill. The function will return 1 when it
3898 * fails to kill the board else will return 0.
3901 lpfc_sli_brdkill(struct lpfc_hba *phba)
3903 struct lpfc_sli *psli;
3913 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3914 "0329 Kill HBA Data: x%x x%x\n",
3915 phba->pport->port_state, psli->sli_flag);
3917 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3921 /* Disable the error attention */
3922 spin_lock_irq(&phba->hbalock);
3923 if (lpfc_readl(phba->HCregaddr, &status)) {
3924 spin_unlock_irq(&phba->hbalock);
3925 mempool_free(pmb, phba->mbox_mem_pool);
3928 status &= ~HC_ERINT_ENA;
3929 writel(status, phba->HCregaddr);
3930 readl(phba->HCregaddr); /* flush */
3931 phba->link_flag |= LS_IGNORE_ERATT;
3932 spin_unlock_irq(&phba->hbalock);
3934 lpfc_kill_board(phba, pmb);
3935 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3936 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3938 if (retval != MBX_SUCCESS) {
3939 if (retval != MBX_BUSY)
3940 mempool_free(pmb, phba->mbox_mem_pool);
3941 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3942 "2752 KILL_BOARD command failed retval %d\n",
3944 spin_lock_irq(&phba->hbalock);
3945 phba->link_flag &= ~LS_IGNORE_ERATT;
3946 spin_unlock_irq(&phba->hbalock);
3950 spin_lock_irq(&phba->hbalock);
3951 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
3952 spin_unlock_irq(&phba->hbalock);
3954 mempool_free(pmb, phba->mbox_mem_pool);
3956 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
3957 * attention every 100ms for 3 seconds. If we don't get ERATT after
3958 * 3 seconds we still set HBA_ERROR state because the status of the
3959 * board is now undefined.
3961 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3963 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
3965 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3969 del_timer_sync(&psli->mbox_tmo);
3970 if (ha_copy & HA_ERATT) {
3971 writel(HA_ERATT, phba->HAregaddr);
3972 phba->pport->stopped = 1;
3974 spin_lock_irq(&phba->hbalock);
3975 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
3976 psli->mbox_active = NULL;
3977 phba->link_flag &= ~LS_IGNORE_ERATT;
3978 spin_unlock_irq(&phba->hbalock);
3980 lpfc_hba_down_post(phba);
3981 phba->link_state = LPFC_HBA_ERROR;
3983 return ha_copy & HA_ERATT ? 0 : 1;
3987 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
3988 * @phba: Pointer to HBA context object.
3990 * This function resets the HBA by writing HC_INITFF to the control
3991 * register. After the HBA resets, this function resets all the iocb ring
3992 * indices. This function disables PCI layer parity checking during
3994 * This function returns 0 always.
3995 * The caller is not required to hold any locks.
3998 lpfc_sli_brdreset(struct lpfc_hba *phba)
4000 struct lpfc_sli *psli;
4001 struct lpfc_sli_ring *pring;
4008 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4009 "0325 Reset HBA Data: x%x x%x\n",
4010 phba->pport->port_state, psli->sli_flag);
4012 /* perform board reset */
4013 phba->fc_eventTag = 0;
4014 phba->link_events = 0;
4015 phba->pport->fc_myDID = 0;
4016 phba->pport->fc_prevDID = 0;
4018 /* Turn off parity checking and serr during the physical reset */
4019 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
4020 pci_write_config_word(phba->pcidev, PCI_COMMAND,
4022 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4024 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
4026 /* Now toggle INITFF bit in the Host Control Register */
4027 writel(HC_INITFF, phba->HCregaddr);
4029 readl(phba->HCregaddr); /* flush */
4030 writel(0, phba->HCregaddr);
4031 readl(phba->HCregaddr); /* flush */
4033 /* Restore PCI cmd register */
4034 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
4036 /* Initialize relevant SLI info */
4037 for (i = 0; i < psli->num_rings; i++) {
4038 pring = &psli->ring[i];
4040 pring->sli.sli3.rspidx = 0;
4041 pring->sli.sli3.next_cmdidx = 0;
4042 pring->sli.sli3.local_getidx = 0;
4043 pring->sli.sli3.cmdidx = 0;
4044 pring->missbufcnt = 0;
4047 phba->link_state = LPFC_WARM_START;
4052 * lpfc_sli4_brdreset - Reset a sli-4 HBA
4053 * @phba: Pointer to HBA context object.
4055 * This function resets a SLI4 HBA. This function disables PCI layer parity
4056 * checking during resets the device. The caller is not required to hold
4059 * This function returns 0 always.
4062 lpfc_sli4_brdreset(struct lpfc_hba *phba)
4064 struct lpfc_sli *psli = &phba->sli;
4069 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4070 "0295 Reset HBA Data: x%x x%x x%x\n",
4071 phba->pport->port_state, psli->sli_flag,
4074 /* perform board reset */
4075 phba->fc_eventTag = 0;
4076 phba->link_events = 0;
4077 phba->pport->fc_myDID = 0;
4078 phba->pport->fc_prevDID = 0;
4080 spin_lock_irq(&phba->hbalock);
4081 psli->sli_flag &= ~(LPFC_PROCESS_LA);
4082 phba->fcf.fcf_flag = 0;
4083 spin_unlock_irq(&phba->hbalock);
4085 /* SLI4 INTF 2: if FW dump is being taken skip INIT_PORT */
4086 if (phba->hba_flag & HBA_FW_DUMP_OP) {
4087 phba->hba_flag &= ~HBA_FW_DUMP_OP;
4091 /* Now physically reset the device */
4092 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4093 "0389 Performing PCI function reset!\n");
4095 /* Turn off parity checking and serr during the physical reset */
4096 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
4097 pci_write_config_word(phba->pcidev, PCI_COMMAND, (cfg_value &
4098 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4100 /* Perform FCoE PCI function reset before freeing queue memory */
4101 rc = lpfc_pci_function_reset(phba);
4102 lpfc_sli4_queue_destroy(phba);
4104 /* Restore PCI cmd register */
4105 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
4111 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
4112 * @phba: Pointer to HBA context object.
4114 * This function is called in the SLI initialization code path to
4115 * restart the HBA. The caller is not required to hold any lock.
4116 * This function writes MBX_RESTART mailbox command to the SLIM and
4117 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
4118 * function to free any pending commands. The function enables
4119 * POST only during the first initialization. The function returns zero.
4120 * The function does not guarantee completion of MBX_RESTART mailbox
4121 * command before the return of this function.
4124 lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
4127 struct lpfc_sli *psli;
4128 volatile uint32_t word0;
4129 void __iomem *to_slim;
4130 uint32_t hba_aer_enabled;
4132 spin_lock_irq(&phba->hbalock);
4134 /* Take PCIe device Advanced Error Reporting (AER) state */
4135 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4140 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4141 "0337 Restart HBA Data: x%x x%x\n",
4142 phba->pport->port_state, psli->sli_flag);
4145 mb = (MAILBOX_t *) &word0;
4146 mb->mbxCommand = MBX_RESTART;
4149 lpfc_reset_barrier(phba);
4151 to_slim = phba->MBslimaddr;
4152 writel(*(uint32_t *) mb, to_slim);
4153 readl(to_slim); /* flush */
4155 /* Only skip post after fc_ffinit is completed */
4156 if (phba->pport->port_state)
4157 word0 = 1; /* This is really setting up word1 */
4159 word0 = 0; /* This is really setting up word1 */
4160 to_slim = phba->MBslimaddr + sizeof (uint32_t);
4161 writel(*(uint32_t *) mb, to_slim);
4162 readl(to_slim); /* flush */
4164 lpfc_sli_brdreset(phba);
4165 phba->pport->stopped = 0;
4166 phba->link_state = LPFC_INIT_START;
4168 spin_unlock_irq(&phba->hbalock);
4170 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4171 psli->stats_start = get_seconds();
4173 /* Give the INITFF and Post time to settle. */
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_s4 - Restart the sli-4 hba
4187 * @phba: Pointer to HBA context object.
4189 * This function is called in the SLI initialization code path to restart
4190 * a SLI4 HBA. The caller is not required to hold any lock.
4191 * At the end of the function, it calls lpfc_hba_down_post function to
4192 * free any pending commands.
4195 lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
4197 struct lpfc_sli *psli = &phba->sli;
4198 uint32_t hba_aer_enabled;
4202 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4203 "0296 Restart HBA Data: x%x x%x\n",
4204 phba->pport->port_state, psli->sli_flag);
4206 /* Take PCIe device Advanced Error Reporting (AER) state */
4207 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4209 rc = lpfc_sli4_brdreset(phba);
4211 spin_lock_irq(&phba->hbalock);
4212 phba->pport->stopped = 0;
4213 phba->link_state = LPFC_INIT_START;
4215 spin_unlock_irq(&phba->hbalock);
4217 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4218 psli->stats_start = get_seconds();
4220 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4221 if (hba_aer_enabled)
4222 pci_disable_pcie_error_reporting(phba->pcidev);
4224 lpfc_hba_down_post(phba);
4230 * lpfc_sli_brdrestart - Wrapper func for restarting hba
4231 * @phba: Pointer to HBA context object.
4233 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
4234 * API jump table function pointer from the lpfc_hba struct.
4237 lpfc_sli_brdrestart(struct lpfc_hba *phba)
4239 return phba->lpfc_sli_brdrestart(phba);
4243 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
4244 * @phba: Pointer to HBA context object.
4246 * This function is called after a HBA restart to wait for successful
4247 * restart of the HBA. Successful restart of the HBA is indicated by
4248 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
4249 * iteration, the function will restart the HBA again. The function returns
4250 * zero if HBA successfully restarted else returns negative error code.
4253 lpfc_sli_chipset_init(struct lpfc_hba *phba)
4255 uint32_t status, i = 0;
4257 /* Read the HBA Host Status Register */
4258 if (lpfc_readl(phba->HSregaddr, &status))
4261 /* Check status register to see what current state is */
4263 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
4265 /* Check every 10ms for 10 retries, then every 100ms for 90
4266 * retries, then every 1 sec for 50 retires for a total of
4267 * ~60 seconds before reset the board again and check every
4268 * 1 sec for 50 retries. The up to 60 seconds before the
4269 * board ready is required by the Falcon FIPS zeroization
4270 * complete, and any reset the board in between shall cause
4271 * restart of zeroization, further delay the board ready.
4274 /* Adapter failed to init, timeout, status reg
4276 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4277 "0436 Adapter failed to init, "
4278 "timeout, status reg x%x, "
4279 "FW Data: A8 x%x AC x%x\n", status,
4280 readl(phba->MBslimaddr + 0xa8),
4281 readl(phba->MBslimaddr + 0xac));
4282 phba->link_state = LPFC_HBA_ERROR;
4286 /* Check to see if any errors occurred during init */
4287 if (status & HS_FFERM) {
4288 /* ERROR: During chipset initialization */
4289 /* Adapter failed to init, chipset, status reg
4291 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4292 "0437 Adapter failed to init, "
4293 "chipset, status reg x%x, "
4294 "FW Data: A8 x%x AC x%x\n", status,
4295 readl(phba->MBslimaddr + 0xa8),
4296 readl(phba->MBslimaddr + 0xac));
4297 phba->link_state = LPFC_HBA_ERROR;
4310 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4311 lpfc_sli_brdrestart(phba);
4313 /* Read the HBA Host Status Register */
4314 if (lpfc_readl(phba->HSregaddr, &status))
4318 /* Check to see if any errors occurred during init */
4319 if (status & HS_FFERM) {
4320 /* ERROR: During chipset initialization */
4321 /* Adapter failed to init, chipset, status reg <status> */
4322 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4323 "0438 Adapter failed to init, chipset, "
4325 "FW Data: A8 x%x AC x%x\n", status,
4326 readl(phba->MBslimaddr + 0xa8),
4327 readl(phba->MBslimaddr + 0xac));
4328 phba->link_state = LPFC_HBA_ERROR;
4332 /* Clear all interrupt enable conditions */
4333 writel(0, phba->HCregaddr);
4334 readl(phba->HCregaddr); /* flush */
4336 /* setup host attn register */
4337 writel(0xffffffff, phba->HAregaddr);
4338 readl(phba->HAregaddr); /* flush */
4343 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
4345 * This function calculates and returns the number of HBQs required to be
4349 lpfc_sli_hbq_count(void)
4351 return ARRAY_SIZE(lpfc_hbq_defs);
4355 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
4357 * This function adds the number of hbq entries in every HBQ to get
4358 * the total number of hbq entries required for the HBA and returns
4362 lpfc_sli_hbq_entry_count(void)
4364 int hbq_count = lpfc_sli_hbq_count();
4368 for (i = 0; i < hbq_count; ++i)
4369 count += lpfc_hbq_defs[i]->entry_count;
4374 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
4376 * This function calculates amount of memory required for all hbq entries
4377 * to be configured and returns the total memory required.
4380 lpfc_sli_hbq_size(void)
4382 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
4386 * lpfc_sli_hbq_setup - configure and initialize HBQs
4387 * @phba: Pointer to HBA context object.
4389 * This function is called during the SLI initialization to configure
4390 * all the HBQs and post buffers to the HBQ. The caller is not
4391 * required to hold any locks. This function will return zero if successful
4392 * else it will return negative error code.
4395 lpfc_sli_hbq_setup(struct lpfc_hba *phba)
4397 int hbq_count = lpfc_sli_hbq_count();
4401 uint32_t hbq_entry_index;
4403 /* Get a Mailbox buffer to setup mailbox
4404 * commands for HBA initialization
4406 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4413 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
4414 phba->link_state = LPFC_INIT_MBX_CMDS;
4415 phba->hbq_in_use = 1;
4417 hbq_entry_index = 0;
4418 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
4419 phba->hbqs[hbqno].next_hbqPutIdx = 0;
4420 phba->hbqs[hbqno].hbqPutIdx = 0;
4421 phba->hbqs[hbqno].local_hbqGetIdx = 0;
4422 phba->hbqs[hbqno].entry_count =
4423 lpfc_hbq_defs[hbqno]->entry_count;
4424 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
4425 hbq_entry_index, pmb);
4426 hbq_entry_index += phba->hbqs[hbqno].entry_count;
4428 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
4429 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
4430 mbxStatus <status>, ring <num> */
4432 lpfc_printf_log(phba, KERN_ERR,
4433 LOG_SLI | LOG_VPORT,
4434 "1805 Adapter failed to init. "
4435 "Data: x%x x%x x%x\n",
4437 pmbox->mbxStatus, hbqno);
4439 phba->link_state = LPFC_HBA_ERROR;
4440 mempool_free(pmb, phba->mbox_mem_pool);
4444 phba->hbq_count = hbq_count;
4446 mempool_free(pmb, phba->mbox_mem_pool);
4448 /* Initially populate or replenish the HBQs */
4449 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
4450 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
4455 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
4456 * @phba: Pointer to HBA context object.
4458 * This function is called during the SLI initialization to configure
4459 * all the HBQs and post buffers to the HBQ. The caller is not
4460 * required to hold any locks. This function will return zero if successful
4461 * else it will return negative error code.
4464 lpfc_sli4_rb_setup(struct lpfc_hba *phba)
4466 phba->hbq_in_use = 1;
4467 phba->hbqs[0].entry_count = lpfc_hbq_defs[0]->entry_count;
4468 phba->hbq_count = 1;
4469 /* Initially populate or replenish the HBQs */
4470 lpfc_sli_hbqbuf_init_hbqs(phba, 0);
4475 * lpfc_sli_config_port - Issue config port mailbox command
4476 * @phba: Pointer to HBA context object.
4477 * @sli_mode: sli mode - 2/3
4479 * This function is called by the sli intialization code path
4480 * to issue config_port mailbox command. This function restarts the
4481 * HBA firmware and issues a config_port mailbox command to configure
4482 * the SLI interface in the sli mode specified by sli_mode
4483 * variable. The caller is not required to hold any locks.
4484 * The function returns 0 if successful, else returns negative error
4488 lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
4491 uint32_t resetcount = 0, rc = 0, done = 0;
4493 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4495 phba->link_state = LPFC_HBA_ERROR;
4499 phba->sli_rev = sli_mode;
4500 while (resetcount < 2 && !done) {
4501 spin_lock_irq(&phba->hbalock);
4502 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
4503 spin_unlock_irq(&phba->hbalock);
4504 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4505 lpfc_sli_brdrestart(phba);
4506 rc = lpfc_sli_chipset_init(phba);
4510 spin_lock_irq(&phba->hbalock);
4511 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4512 spin_unlock_irq(&phba->hbalock);
4515 /* Call pre CONFIG_PORT mailbox command initialization. A
4516 * value of 0 means the call was successful. Any other
4517 * nonzero value is a failure, but if ERESTART is returned,
4518 * the driver may reset the HBA and try again.
4520 rc = lpfc_config_port_prep(phba);
4521 if (rc == -ERESTART) {
4522 phba->link_state = LPFC_LINK_UNKNOWN;
4527 phba->link_state = LPFC_INIT_MBX_CMDS;
4528 lpfc_config_port(phba, pmb);
4529 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
4530 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
4531 LPFC_SLI3_HBQ_ENABLED |
4532 LPFC_SLI3_CRP_ENABLED |
4533 LPFC_SLI3_BG_ENABLED |
4534 LPFC_SLI3_DSS_ENABLED);
4535 if (rc != MBX_SUCCESS) {
4536 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4537 "0442 Adapter failed to init, mbxCmd x%x "
4538 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
4539 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
4540 spin_lock_irq(&phba->hbalock);
4541 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
4542 spin_unlock_irq(&phba->hbalock);
4545 /* Allow asynchronous mailbox command to go through */
4546 spin_lock_irq(&phba->hbalock);
4547 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
4548 spin_unlock_irq(&phba->hbalock);
4551 if ((pmb->u.mb.un.varCfgPort.casabt == 1) &&
4552 (pmb->u.mb.un.varCfgPort.gasabt == 0))
4553 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4554 "3110 Port did not grant ASABT\n");
4559 goto do_prep_failed;
4561 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
4562 if (!pmb->u.mb.un.varCfgPort.cMA) {
4564 goto do_prep_failed;
4566 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
4567 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
4568 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
4569 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
4570 phba->max_vpi : phba->max_vports;
4574 phba->fips_level = 0;
4575 phba->fips_spec_rev = 0;
4576 if (pmb->u.mb.un.varCfgPort.gdss) {
4577 phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
4578 phba->fips_level = pmb->u.mb.un.varCfgPort.fips_level;
4579 phba->fips_spec_rev = pmb->u.mb.un.varCfgPort.fips_rev;
4580 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4581 "2850 Security Crypto Active. FIPS x%d "
4583 phba->fips_level, phba->fips_spec_rev);
4585 if (pmb->u.mb.un.varCfgPort.sec_err) {
4586 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4587 "2856 Config Port Security Crypto "
4589 pmb->u.mb.un.varCfgPort.sec_err);
4591 if (pmb->u.mb.un.varCfgPort.gerbm)
4592 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
4593 if (pmb->u.mb.un.varCfgPort.gcrp)
4594 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
4596 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
4597 phba->port_gp = phba->mbox->us.s3_pgp.port;
4599 if (phba->cfg_enable_bg) {
4600 if (pmb->u.mb.un.varCfgPort.gbg)
4601 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
4603 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4604 "0443 Adapter did not grant "
4608 phba->hbq_get = NULL;
4609 phba->port_gp = phba->mbox->us.s2.port;
4613 mempool_free(pmb, phba->mbox_mem_pool);
4619 * lpfc_sli_hba_setup - SLI intialization function
4620 * @phba: Pointer to HBA context object.
4622 * This function is the main SLI intialization function. This function
4623 * is called by the HBA intialization code, HBA reset code and HBA
4624 * error attention handler code. Caller is not required to hold any
4625 * locks. This function issues config_port mailbox command to configure
4626 * the SLI, setup iocb rings and HBQ rings. In the end the function
4627 * calls the config_port_post function to issue init_link mailbox
4628 * command and to start the discovery. The function will return zero
4629 * if successful, else it will return negative error code.
4632 lpfc_sli_hba_setup(struct lpfc_hba *phba)
4638 switch (lpfc_sli_mode) {
4640 if (phba->cfg_enable_npiv) {
4641 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4642 "1824 NPIV enabled: Override lpfc_sli_mode "
4643 "parameter (%d) to auto (0).\n",
4653 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4654 "1819 Unrecognized lpfc_sli_mode "
4655 "parameter: %d.\n", lpfc_sli_mode);
4660 rc = lpfc_sli_config_port(phba, mode);
4662 if (rc && lpfc_sli_mode == 3)
4663 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4664 "1820 Unable to select SLI-3. "
4665 "Not supported by adapter.\n");
4666 if (rc && mode != 2)
4667 rc = lpfc_sli_config_port(phba, 2);
4669 goto lpfc_sli_hba_setup_error;
4671 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4672 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
4673 rc = pci_enable_pcie_error_reporting(phba->pcidev);
4675 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4676 "2709 This device supports "
4677 "Advanced Error Reporting (AER)\n");
4678 spin_lock_irq(&phba->hbalock);
4679 phba->hba_flag |= HBA_AER_ENABLED;
4680 spin_unlock_irq(&phba->hbalock);
4682 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4683 "2708 This device does not support "
4684 "Advanced Error Reporting (AER): %d\n",
4686 phba->cfg_aer_support = 0;
4690 if (phba->sli_rev == 3) {
4691 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
4692 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
4694 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
4695 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
4696 phba->sli3_options = 0;
4699 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4700 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
4701 phba->sli_rev, phba->max_vpi);
4702 rc = lpfc_sli_ring_map(phba);
4705 goto lpfc_sli_hba_setup_error;
4707 /* Initialize VPIs. */
4708 if (phba->sli_rev == LPFC_SLI_REV3) {
4710 * The VPI bitmask and physical ID array are allocated
4711 * and initialized once only - at driver load. A port
4712 * reset doesn't need to reinitialize this memory.
4714 if ((phba->vpi_bmask == NULL) && (phba->vpi_ids == NULL)) {
4715 longs = (phba->max_vpi + BITS_PER_LONG) / BITS_PER_LONG;
4716 phba->vpi_bmask = kzalloc(longs * sizeof(unsigned long),
4718 if (!phba->vpi_bmask) {
4720 goto lpfc_sli_hba_setup_error;
4723 phba->vpi_ids = kzalloc(
4724 (phba->max_vpi+1) * sizeof(uint16_t),
4726 if (!phba->vpi_ids) {
4727 kfree(phba->vpi_bmask);
4729 goto lpfc_sli_hba_setup_error;
4731 for (i = 0; i < phba->max_vpi; i++)
4732 phba->vpi_ids[i] = i;
4737 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
4738 rc = lpfc_sli_hbq_setup(phba);
4740 goto lpfc_sli_hba_setup_error;
4742 spin_lock_irq(&phba->hbalock);
4743 phba->sli.sli_flag |= LPFC_PROCESS_LA;
4744 spin_unlock_irq(&phba->hbalock);
4746 rc = lpfc_config_port_post(phba);
4748 goto lpfc_sli_hba_setup_error;
4752 lpfc_sli_hba_setup_error:
4753 phba->link_state = LPFC_HBA_ERROR;
4754 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4755 "0445 Firmware initialization failed\n");
4760 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
4761 * @phba: Pointer to HBA context object.
4762 * @mboxq: mailbox pointer.
4763 * This function issue a dump mailbox command to read config region
4764 * 23 and parse the records in the region and populate driver
4768 lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba)
4770 LPFC_MBOXQ_t *mboxq;
4771 struct lpfc_dmabuf *mp;
4772 struct lpfc_mqe *mqe;
4773 uint32_t data_length;
4776 /* Program the default value of vlan_id and fc_map */
4777 phba->valid_vlan = 0;
4778 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4779 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4780 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4782 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4786 mqe = &mboxq->u.mqe;
4787 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq)) {
4789 goto out_free_mboxq;
4792 mp = (struct lpfc_dmabuf *) mboxq->context1;
4793 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4795 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4796 "(%d):2571 Mailbox cmd x%x Status x%x "
4797 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4798 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4799 "CQ: x%x x%x x%x x%x\n",
4800 mboxq->vport ? mboxq->vport->vpi : 0,
4801 bf_get(lpfc_mqe_command, mqe),
4802 bf_get(lpfc_mqe_status, mqe),
4803 mqe->un.mb_words[0], mqe->un.mb_words[1],
4804 mqe->un.mb_words[2], mqe->un.mb_words[3],
4805 mqe->un.mb_words[4], mqe->un.mb_words[5],
4806 mqe->un.mb_words[6], mqe->un.mb_words[7],
4807 mqe->un.mb_words[8], mqe->un.mb_words[9],
4808 mqe->un.mb_words[10], mqe->un.mb_words[11],
4809 mqe->un.mb_words[12], mqe->un.mb_words[13],
4810 mqe->un.mb_words[14], mqe->un.mb_words[15],
4811 mqe->un.mb_words[16], mqe->un.mb_words[50],
4813 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
4814 mboxq->mcqe.trailer);
4817 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4820 goto out_free_mboxq;
4822 data_length = mqe->un.mb_words[5];
4823 if (data_length > DMP_RGN23_SIZE) {
4824 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4827 goto out_free_mboxq;
4830 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
4831 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4836 mempool_free(mboxq, phba->mbox_mem_pool);
4841 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
4842 * @phba: pointer to lpfc hba data structure.
4843 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
4844 * @vpd: pointer to the memory to hold resulting port vpd data.
4845 * @vpd_size: On input, the number of bytes allocated to @vpd.
4846 * On output, the number of data bytes in @vpd.
4848 * This routine executes a READ_REV SLI4 mailbox command. In
4849 * addition, this routine gets the port vpd data.
4853 * -ENOMEM - could not allocated memory.
4856 lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
4857 uint8_t *vpd, uint32_t *vpd_size)
4861 struct lpfc_dmabuf *dmabuf;
4862 struct lpfc_mqe *mqe;
4864 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4869 * Get a DMA buffer for the vpd data resulting from the READ_REV
4872 dma_size = *vpd_size;
4873 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, dma_size,
4874 &dmabuf->phys, GFP_KERNEL);
4875 if (!dmabuf->virt) {
4881 * The SLI4 implementation of READ_REV conflicts at word1,
4882 * bits 31:16 and SLI4 adds vpd functionality not present
4883 * in SLI3. This code corrects the conflicts.
4885 lpfc_read_rev(phba, mboxq);
4886 mqe = &mboxq->u.mqe;
4887 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
4888 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
4889 mqe->un.read_rev.word1 &= 0x0000FFFF;
4890 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
4891 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
4893 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4895 dma_free_coherent(&phba->pcidev->dev, dma_size,
4896 dmabuf->virt, dmabuf->phys);
4902 * The available vpd length cannot be bigger than the
4903 * DMA buffer passed to the port. Catch the less than
4904 * case and update the caller's size.
4906 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
4907 *vpd_size = mqe->un.read_rev.avail_vpd_len;
4909 memcpy(vpd, dmabuf->virt, *vpd_size);
4911 dma_free_coherent(&phba->pcidev->dev, dma_size,
4912 dmabuf->virt, dmabuf->phys);
4918 * lpfc_sli4_retrieve_pport_name - Retrieve SLI4 device physical port name
4919 * @phba: pointer to lpfc hba data structure.
4921 * This routine retrieves SLI4 device physical port name this PCI function
4926 * otherwise - failed to retrieve physical port name
4929 lpfc_sli4_retrieve_pport_name(struct lpfc_hba *phba)
4931 LPFC_MBOXQ_t *mboxq;
4932 struct lpfc_mbx_get_cntl_attributes *mbx_cntl_attr;
4933 struct lpfc_controller_attribute *cntl_attr;
4934 struct lpfc_mbx_get_port_name *get_port_name;
4935 void *virtaddr = NULL;
4936 uint32_t alloclen, reqlen;
4937 uint32_t shdr_status, shdr_add_status;
4938 union lpfc_sli4_cfg_shdr *shdr;
4939 char cport_name = 0;
4942 /* We assume nothing at this point */
4943 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
4944 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_NON;
4946 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4949 /* obtain link type and link number via READ_CONFIG */
4950 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
4951 lpfc_sli4_read_config(phba);
4952 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL)
4953 goto retrieve_ppname;
4955 /* obtain link type and link number via COMMON_GET_CNTL_ATTRIBUTES */
4956 reqlen = sizeof(struct lpfc_mbx_get_cntl_attributes);
4957 alloclen = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
4958 LPFC_MBOX_OPCODE_GET_CNTL_ATTRIBUTES, reqlen,
4959 LPFC_SLI4_MBX_NEMBED);
4960 if (alloclen < reqlen) {
4961 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4962 "3084 Allocated DMA memory size (%d) is "
4963 "less than the requested DMA memory size "
4964 "(%d)\n", alloclen, reqlen);
4966 goto out_free_mboxq;
4968 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4969 virtaddr = mboxq->sge_array->addr[0];
4970 mbx_cntl_attr = (struct lpfc_mbx_get_cntl_attributes *)virtaddr;
4971 shdr = &mbx_cntl_attr->cfg_shdr;
4972 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
4973 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
4974 if (shdr_status || shdr_add_status || rc) {
4975 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4976 "3085 Mailbox x%x (x%x/x%x) failed, "
4977 "rc:x%x, status:x%x, add_status:x%x\n",
4978 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4979 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
4980 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
4981 rc, shdr_status, shdr_add_status);
4983 goto out_free_mboxq;
4985 cntl_attr = &mbx_cntl_attr->cntl_attr;
4986 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
4987 phba->sli4_hba.lnk_info.lnk_tp =
4988 bf_get(lpfc_cntl_attr_lnk_type, cntl_attr);
4989 phba->sli4_hba.lnk_info.lnk_no =
4990 bf_get(lpfc_cntl_attr_lnk_numb, cntl_attr);
4991 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4992 "3086 lnk_type:%d, lnk_numb:%d\n",
4993 phba->sli4_hba.lnk_info.lnk_tp,
4994 phba->sli4_hba.lnk_info.lnk_no);
4997 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
4998 LPFC_MBOX_OPCODE_GET_PORT_NAME,
4999 sizeof(struct lpfc_mbx_get_port_name) -
5000 sizeof(struct lpfc_sli4_cfg_mhdr),
5001 LPFC_SLI4_MBX_EMBED);
5002 get_port_name = &mboxq->u.mqe.un.get_port_name;
5003 shdr = (union lpfc_sli4_cfg_shdr *)&get_port_name->header.cfg_shdr;
5004 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_OPCODE_VERSION_1);
5005 bf_set(lpfc_mbx_get_port_name_lnk_type, &get_port_name->u.request,
5006 phba->sli4_hba.lnk_info.lnk_tp);
5007 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5008 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5009 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5010 if (shdr_status || shdr_add_status || rc) {
5011 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5012 "3087 Mailbox x%x (x%x/x%x) failed: "
5013 "rc:x%x, status:x%x, add_status:x%x\n",
5014 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5015 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
5016 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
5017 rc, shdr_status, shdr_add_status);
5019 goto out_free_mboxq;
5021 switch (phba->sli4_hba.lnk_info.lnk_no) {
5022 case LPFC_LINK_NUMBER_0:
5023 cport_name = bf_get(lpfc_mbx_get_port_name_name0,
5024 &get_port_name->u.response);
5025 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5027 case LPFC_LINK_NUMBER_1:
5028 cport_name = bf_get(lpfc_mbx_get_port_name_name1,
5029 &get_port_name->u.response);
5030 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5032 case LPFC_LINK_NUMBER_2:
5033 cport_name = bf_get(lpfc_mbx_get_port_name_name2,
5034 &get_port_name->u.response);
5035 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5037 case LPFC_LINK_NUMBER_3:
5038 cport_name = bf_get(lpfc_mbx_get_port_name_name3,
5039 &get_port_name->u.response);
5040 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5046 if (phba->sli4_hba.pport_name_sta == LPFC_SLI4_PPNAME_GET) {
5047 phba->Port[0] = cport_name;
5048 phba->Port[1] = '\0';
5049 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5050 "3091 SLI get port name: %s\n", phba->Port);
5054 if (rc != MBX_TIMEOUT) {
5055 if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
5056 lpfc_sli4_mbox_cmd_free(phba, mboxq);
5058 mempool_free(mboxq, phba->mbox_mem_pool);
5064 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
5065 * @phba: pointer to lpfc hba data structure.
5067 * This routine is called to explicitly arm the SLI4 device's completion and
5071 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
5075 lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM);
5076 lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM);
5078 if (phba->sli4_hba.fcp_cq) {
5080 lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[fcp_eqidx],
5082 } while (++fcp_eqidx < phba->cfg_fcp_io_channel);
5086 lpfc_sli4_cq_release(phba->sli4_hba.oas_cq, LPFC_QUEUE_REARM);
5088 if (phba->sli4_hba.hba_eq) {
5089 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel;
5091 lpfc_sli4_eq_release(phba->sli4_hba.hba_eq[fcp_eqidx],
5096 lpfc_sli4_eq_release(phba->sli4_hba.fof_eq, LPFC_QUEUE_REARM);
5100 * lpfc_sli4_get_avail_extnt_rsrc - Get available resource extent count.
5101 * @phba: Pointer to HBA context object.
5102 * @type: The resource extent type.
5103 * @extnt_count: buffer to hold port available extent count.
5104 * @extnt_size: buffer to hold element count per extent.
5106 * This function calls the port and retrievs the number of available
5107 * extents and their size for a particular extent type.
5109 * Returns: 0 if successful. Nonzero otherwise.
5112 lpfc_sli4_get_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type,
5113 uint16_t *extnt_count, uint16_t *extnt_size)
5118 struct lpfc_mbx_get_rsrc_extent_info *rsrc_info;
5121 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5125 /* Find out how many extents are available for this resource type */
5126 length = (sizeof(struct lpfc_mbx_get_rsrc_extent_info) -
5127 sizeof(struct lpfc_sli4_cfg_mhdr));
5128 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5129 LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO,
5130 length, LPFC_SLI4_MBX_EMBED);
5132 /* Send an extents count of 0 - the GET doesn't use it. */
5133 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5134 LPFC_SLI4_MBX_EMBED);
5140 if (!phba->sli4_hba.intr_enable)
5141 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5143 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5144 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5151 rsrc_info = &mbox->u.mqe.un.rsrc_extent_info;
5152 if (bf_get(lpfc_mbox_hdr_status,
5153 &rsrc_info->header.cfg_shdr.response)) {
5154 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5155 "2930 Failed to get resource extents "
5156 "Status 0x%x Add'l Status 0x%x\n",
5157 bf_get(lpfc_mbox_hdr_status,
5158 &rsrc_info->header.cfg_shdr.response),
5159 bf_get(lpfc_mbox_hdr_add_status,
5160 &rsrc_info->header.cfg_shdr.response));
5165 *extnt_count = bf_get(lpfc_mbx_get_rsrc_extent_info_cnt,
5167 *extnt_size = bf_get(lpfc_mbx_get_rsrc_extent_info_size,
5170 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5171 "3162 Retrieved extents type-%d from port: count:%d, "
5172 "size:%d\n", type, *extnt_count, *extnt_size);
5175 mempool_free(mbox, phba->mbox_mem_pool);
5180 * lpfc_sli4_chk_avail_extnt_rsrc - Check for available SLI4 resource extents.
5181 * @phba: Pointer to HBA context object.
5182 * @type: The extent type to check.
5184 * This function reads the current available extents from the port and checks
5185 * if the extent count or extent size has changed since the last access.
5186 * Callers use this routine post port reset to understand if there is a
5187 * extent reprovisioning requirement.
5190 * -Error: error indicates problem.
5191 * 1: Extent count or size has changed.
5195 lpfc_sli4_chk_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type)
5197 uint16_t curr_ext_cnt, rsrc_ext_cnt;
5198 uint16_t size_diff, rsrc_ext_size;
5200 struct lpfc_rsrc_blks *rsrc_entry;
5201 struct list_head *rsrc_blk_list = NULL;
5205 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5212 case LPFC_RSC_TYPE_FCOE_RPI:
5213 rsrc_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5215 case LPFC_RSC_TYPE_FCOE_VPI:
5216 rsrc_blk_list = &phba->lpfc_vpi_blk_list;
5218 case LPFC_RSC_TYPE_FCOE_XRI:
5219 rsrc_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5221 case LPFC_RSC_TYPE_FCOE_VFI:
5222 rsrc_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5228 list_for_each_entry(rsrc_entry, rsrc_blk_list, list) {
5230 if (rsrc_entry->rsrc_size != rsrc_ext_size)
5234 if (curr_ext_cnt != rsrc_ext_cnt || size_diff != 0)
5241 * lpfc_sli4_cfg_post_extnts -
5242 * @phba: Pointer to HBA context object.
5243 * @extnt_cnt - number of available extents.
5244 * @type - the extent type (rpi, xri, vfi, vpi).
5245 * @emb - buffer to hold either MBX_EMBED or MBX_NEMBED operation.
5246 * @mbox - pointer to the caller's allocated mailbox structure.
5248 * This function executes the extents allocation request. It also
5249 * takes care of the amount of memory needed to allocate or get the
5250 * allocated extents. It is the caller's responsibility to evaluate
5254 * -Error: Error value describes the condition found.
5258 lpfc_sli4_cfg_post_extnts(struct lpfc_hba *phba, uint16_t extnt_cnt,
5259 uint16_t type, bool *emb, LPFC_MBOXQ_t *mbox)
5264 uint32_t alloc_len, mbox_tmo;
5266 /* Calculate the total requested length of the dma memory */
5267 req_len = extnt_cnt * sizeof(uint16_t);
5270 * Calculate the size of an embedded mailbox. The uint32_t
5271 * accounts for extents-specific word.
5273 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
5277 * Presume the allocation and response will fit into an embedded
5278 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5280 *emb = LPFC_SLI4_MBX_EMBED;
5281 if (req_len > emb_len) {
5282 req_len = extnt_cnt * sizeof(uint16_t) +
5283 sizeof(union lpfc_sli4_cfg_shdr) +
5285 *emb = LPFC_SLI4_MBX_NEMBED;
5288 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5289 LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT,
5291 if (alloc_len < req_len) {
5292 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5293 "2982 Allocated DMA memory size (x%x) is "
5294 "less than the requested DMA memory "
5295 "size (x%x)\n", alloc_len, req_len);
5298 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, extnt_cnt, type, *emb);
5302 if (!phba->sli4_hba.intr_enable)
5303 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5305 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5306 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5315 * lpfc_sli4_alloc_extent - Allocate an SLI4 resource extent.
5316 * @phba: Pointer to HBA context object.
5317 * @type: The resource extent type to allocate.
5319 * This function allocates the number of elements for the specified
5323 lpfc_sli4_alloc_extent(struct lpfc_hba *phba, uint16_t type)
5326 uint16_t rsrc_id_cnt, rsrc_cnt, rsrc_size;
5327 uint16_t rsrc_id, rsrc_start, j, k;
5330 unsigned long longs;
5331 unsigned long *bmask;
5332 struct lpfc_rsrc_blks *rsrc_blks;
5335 struct lpfc_id_range *id_array = NULL;
5336 void *virtaddr = NULL;
5337 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5338 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5339 struct list_head *ext_blk_list;
5341 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5347 if ((rsrc_cnt == 0) || (rsrc_size == 0)) {
5348 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5349 "3009 No available Resource Extents "
5350 "for resource type 0x%x: Count: 0x%x, "
5351 "Size 0x%x\n", type, rsrc_cnt,
5356 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_INIT | LOG_SLI,
5357 "2903 Post resource extents type-0x%x: "
5358 "count:%d, size %d\n", type, rsrc_cnt, rsrc_size);
5360 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5364 rc = lpfc_sli4_cfg_post_extnts(phba, rsrc_cnt, type, &emb, mbox);
5371 * Figure out where the response is located. Then get local pointers
5372 * to the response data. The port does not guarantee to respond to
5373 * all extents counts request so update the local variable with the
5374 * allocated count from the port.
5376 if (emb == LPFC_SLI4_MBX_EMBED) {
5377 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
5378 id_array = &rsrc_ext->u.rsp.id[0];
5379 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
5381 virtaddr = mbox->sge_array->addr[0];
5382 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
5383 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
5384 id_array = &n_rsrc->id;
5387 longs = ((rsrc_cnt * rsrc_size) + BITS_PER_LONG - 1) / BITS_PER_LONG;
5388 rsrc_id_cnt = rsrc_cnt * rsrc_size;
5391 * Based on the resource size and count, correct the base and max
5394 length = sizeof(struct lpfc_rsrc_blks);
5396 case LPFC_RSC_TYPE_FCOE_RPI:
5397 phba->sli4_hba.rpi_bmask = kzalloc(longs *
5398 sizeof(unsigned long),
5400 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5404 phba->sli4_hba.rpi_ids = kzalloc(rsrc_id_cnt *
5407 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5408 kfree(phba->sli4_hba.rpi_bmask);
5414 * The next_rpi was initialized with the maximum available
5415 * count but the port may allocate a smaller number. Catch
5416 * that case and update the next_rpi.
5418 phba->sli4_hba.next_rpi = rsrc_id_cnt;
5420 /* Initialize local ptrs for common extent processing later. */
5421 bmask = phba->sli4_hba.rpi_bmask;
5422 ids = phba->sli4_hba.rpi_ids;
5423 ext_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5425 case LPFC_RSC_TYPE_FCOE_VPI:
5426 phba->vpi_bmask = kzalloc(longs *
5427 sizeof(unsigned long),
5429 if (unlikely(!phba->vpi_bmask)) {
5433 phba->vpi_ids = kzalloc(rsrc_id_cnt *
5436 if (unlikely(!phba->vpi_ids)) {
5437 kfree(phba->vpi_bmask);
5442 /* Initialize local ptrs for common extent processing later. */
5443 bmask = phba->vpi_bmask;
5444 ids = phba->vpi_ids;
5445 ext_blk_list = &phba->lpfc_vpi_blk_list;
5447 case LPFC_RSC_TYPE_FCOE_XRI:
5448 phba->sli4_hba.xri_bmask = kzalloc(longs *
5449 sizeof(unsigned long),
5451 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5455 phba->sli4_hba.max_cfg_param.xri_used = 0;
5456 phba->sli4_hba.xri_ids = kzalloc(rsrc_id_cnt *
5459 if (unlikely(!phba->sli4_hba.xri_ids)) {
5460 kfree(phba->sli4_hba.xri_bmask);
5465 /* Initialize local ptrs for common extent processing later. */
5466 bmask = phba->sli4_hba.xri_bmask;
5467 ids = phba->sli4_hba.xri_ids;
5468 ext_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5470 case LPFC_RSC_TYPE_FCOE_VFI:
5471 phba->sli4_hba.vfi_bmask = kzalloc(longs *
5472 sizeof(unsigned long),
5474 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5478 phba->sli4_hba.vfi_ids = kzalloc(rsrc_id_cnt *
5481 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5482 kfree(phba->sli4_hba.vfi_bmask);
5487 /* Initialize local ptrs for common extent processing later. */
5488 bmask = phba->sli4_hba.vfi_bmask;
5489 ids = phba->sli4_hba.vfi_ids;
5490 ext_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5493 /* Unsupported Opcode. Fail call. */
5497 ext_blk_list = NULL;
5502 * Complete initializing the extent configuration with the
5503 * allocated ids assigned to this function. The bitmask serves
5504 * as an index into the array and manages the available ids. The
5505 * array just stores the ids communicated to the port via the wqes.
5507 for (i = 0, j = 0, k = 0; i < rsrc_cnt; i++) {
5509 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_0,
5512 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_1,
5515 rsrc_blks = kzalloc(length, GFP_KERNEL);
5516 if (unlikely(!rsrc_blks)) {
5522 rsrc_blks->rsrc_start = rsrc_id;
5523 rsrc_blks->rsrc_size = rsrc_size;
5524 list_add_tail(&rsrc_blks->list, ext_blk_list);
5525 rsrc_start = rsrc_id;
5526 if ((type == LPFC_RSC_TYPE_FCOE_XRI) && (j == 0))
5527 phba->sli4_hba.scsi_xri_start = rsrc_start +
5528 lpfc_sli4_get_els_iocb_cnt(phba);
5530 while (rsrc_id < (rsrc_start + rsrc_size)) {
5535 /* Entire word processed. Get next word.*/
5540 lpfc_sli4_mbox_cmd_free(phba, mbox);
5545 * lpfc_sli4_dealloc_extent - Deallocate an SLI4 resource extent.
5546 * @phba: Pointer to HBA context object.
5547 * @type: the extent's type.
5549 * This function deallocates all extents of a particular resource type.
5550 * SLI4 does not allow for deallocating a particular extent range. It
5551 * is the caller's responsibility to release all kernel memory resources.
5554 lpfc_sli4_dealloc_extent(struct lpfc_hba *phba, uint16_t type)
5557 uint32_t length, mbox_tmo = 0;
5559 struct lpfc_mbx_dealloc_rsrc_extents *dealloc_rsrc;
5560 struct lpfc_rsrc_blks *rsrc_blk, *rsrc_blk_next;
5562 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5567 * This function sends an embedded mailbox because it only sends the
5568 * the resource type. All extents of this type are released by the
5571 length = (sizeof(struct lpfc_mbx_dealloc_rsrc_extents) -
5572 sizeof(struct lpfc_sli4_cfg_mhdr));
5573 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5574 LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT,
5575 length, LPFC_SLI4_MBX_EMBED);
5577 /* Send an extents count of 0 - the dealloc doesn't use it. */
5578 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5579 LPFC_SLI4_MBX_EMBED);
5584 if (!phba->sli4_hba.intr_enable)
5585 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5587 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5588 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5595 dealloc_rsrc = &mbox->u.mqe.un.dealloc_rsrc_extents;
5596 if (bf_get(lpfc_mbox_hdr_status,
5597 &dealloc_rsrc->header.cfg_shdr.response)) {
5598 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5599 "2919 Failed to release resource extents "
5600 "for type %d - Status 0x%x Add'l Status 0x%x. "
5601 "Resource memory not released.\n",
5603 bf_get(lpfc_mbox_hdr_status,
5604 &dealloc_rsrc->header.cfg_shdr.response),
5605 bf_get(lpfc_mbox_hdr_add_status,
5606 &dealloc_rsrc->header.cfg_shdr.response));
5611 /* Release kernel memory resources for the specific type. */
5613 case LPFC_RSC_TYPE_FCOE_VPI:
5614 kfree(phba->vpi_bmask);
5615 kfree(phba->vpi_ids);
5616 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5617 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5618 &phba->lpfc_vpi_blk_list, list) {
5619 list_del_init(&rsrc_blk->list);
5622 phba->sli4_hba.max_cfg_param.vpi_used = 0;
5624 case LPFC_RSC_TYPE_FCOE_XRI:
5625 kfree(phba->sli4_hba.xri_bmask);
5626 kfree(phba->sli4_hba.xri_ids);
5627 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5628 &phba->sli4_hba.lpfc_xri_blk_list, list) {
5629 list_del_init(&rsrc_blk->list);
5633 case LPFC_RSC_TYPE_FCOE_VFI:
5634 kfree(phba->sli4_hba.vfi_bmask);
5635 kfree(phba->sli4_hba.vfi_ids);
5636 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5637 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5638 &phba->sli4_hba.lpfc_vfi_blk_list, list) {
5639 list_del_init(&rsrc_blk->list);
5643 case LPFC_RSC_TYPE_FCOE_RPI:
5644 /* RPI bitmask and physical id array are cleaned up earlier. */
5645 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5646 &phba->sli4_hba.lpfc_rpi_blk_list, list) {
5647 list_del_init(&rsrc_blk->list);
5655 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5658 mempool_free(mbox, phba->mbox_mem_pool);
5663 * lpfc_sli4_alloc_resource_identifiers - Allocate all SLI4 resource extents.
5664 * @phba: Pointer to HBA context object.
5666 * This function allocates all SLI4 resource identifiers.
5669 lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba *phba)
5671 int i, rc, error = 0;
5672 uint16_t count, base;
5673 unsigned long longs;
5675 if (!phba->sli4_hba.rpi_hdrs_in_use)
5676 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
5677 if (phba->sli4_hba.extents_in_use) {
5679 * The port supports resource extents. The XRI, VPI, VFI, RPI
5680 * resource extent count must be read and allocated before
5681 * provisioning the resource id arrays.
5683 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
5684 LPFC_IDX_RSRC_RDY) {
5686 * Extent-based resources are set - the driver could
5687 * be in a port reset. Figure out if any corrective
5688 * actions need to be taken.
5690 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5691 LPFC_RSC_TYPE_FCOE_VFI);
5694 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5695 LPFC_RSC_TYPE_FCOE_VPI);
5698 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5699 LPFC_RSC_TYPE_FCOE_XRI);
5702 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5703 LPFC_RSC_TYPE_FCOE_RPI);
5708 * It's possible that the number of resources
5709 * provided to this port instance changed between
5710 * resets. Detect this condition and reallocate
5711 * resources. Otherwise, there is no action.
5714 lpfc_printf_log(phba, KERN_INFO,
5715 LOG_MBOX | LOG_INIT,
5716 "2931 Detected extent resource "
5717 "change. Reallocating all "
5719 rc = lpfc_sli4_dealloc_extent(phba,
5720 LPFC_RSC_TYPE_FCOE_VFI);
5721 rc = lpfc_sli4_dealloc_extent(phba,
5722 LPFC_RSC_TYPE_FCOE_VPI);
5723 rc = lpfc_sli4_dealloc_extent(phba,
5724 LPFC_RSC_TYPE_FCOE_XRI);
5725 rc = lpfc_sli4_dealloc_extent(phba,
5726 LPFC_RSC_TYPE_FCOE_RPI);
5731 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
5735 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
5739 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
5743 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
5746 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
5751 * The port does not support resource extents. The XRI, VPI,
5752 * VFI, RPI resource ids were determined from READ_CONFIG.
5753 * Just allocate the bitmasks and provision the resource id
5754 * arrays. If a port reset is active, the resources don't
5755 * need any action - just exit.
5757 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
5758 LPFC_IDX_RSRC_RDY) {
5759 lpfc_sli4_dealloc_resource_identifiers(phba);
5760 lpfc_sli4_remove_rpis(phba);
5763 count = phba->sli4_hba.max_cfg_param.max_rpi;
5765 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5766 "3279 Invalid provisioning of "
5771 base = phba->sli4_hba.max_cfg_param.rpi_base;
5772 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5773 phba->sli4_hba.rpi_bmask = kzalloc(longs *
5774 sizeof(unsigned long),
5776 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5780 phba->sli4_hba.rpi_ids = kzalloc(count *
5783 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5785 goto free_rpi_bmask;
5788 for (i = 0; i < count; i++)
5789 phba->sli4_hba.rpi_ids[i] = base + i;
5792 count = phba->sli4_hba.max_cfg_param.max_vpi;
5794 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5795 "3280 Invalid provisioning of "
5800 base = phba->sli4_hba.max_cfg_param.vpi_base;
5801 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5802 phba->vpi_bmask = kzalloc(longs *
5803 sizeof(unsigned long),
5805 if (unlikely(!phba->vpi_bmask)) {
5809 phba->vpi_ids = kzalloc(count *
5812 if (unlikely(!phba->vpi_ids)) {
5814 goto free_vpi_bmask;
5817 for (i = 0; i < count; i++)
5818 phba->vpi_ids[i] = base + i;
5821 count = phba->sli4_hba.max_cfg_param.max_xri;
5823 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5824 "3281 Invalid provisioning of "
5829 base = phba->sli4_hba.max_cfg_param.xri_base;
5830 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5831 phba->sli4_hba.xri_bmask = kzalloc(longs *
5832 sizeof(unsigned long),
5834 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5838 phba->sli4_hba.max_cfg_param.xri_used = 0;
5839 phba->sli4_hba.xri_ids = kzalloc(count *
5842 if (unlikely(!phba->sli4_hba.xri_ids)) {
5844 goto free_xri_bmask;
5847 for (i = 0; i < count; i++)
5848 phba->sli4_hba.xri_ids[i] = base + i;
5851 count = phba->sli4_hba.max_cfg_param.max_vfi;
5853 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5854 "3282 Invalid provisioning of "
5859 base = phba->sli4_hba.max_cfg_param.vfi_base;
5860 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5861 phba->sli4_hba.vfi_bmask = kzalloc(longs *
5862 sizeof(unsigned long),
5864 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5868 phba->sli4_hba.vfi_ids = kzalloc(count *
5871 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5873 goto free_vfi_bmask;
5876 for (i = 0; i < count; i++)
5877 phba->sli4_hba.vfi_ids[i] = base + i;
5880 * Mark all resources ready. An HBA reset doesn't need
5881 * to reset the initialization.
5883 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
5889 kfree(phba->sli4_hba.vfi_bmask);
5891 kfree(phba->sli4_hba.xri_ids);
5893 kfree(phba->sli4_hba.xri_bmask);
5895 kfree(phba->vpi_ids);
5897 kfree(phba->vpi_bmask);
5899 kfree(phba->sli4_hba.rpi_ids);
5901 kfree(phba->sli4_hba.rpi_bmask);
5907 * lpfc_sli4_dealloc_resource_identifiers - Deallocate all SLI4 resource extents.
5908 * @phba: Pointer to HBA context object.
5910 * This function allocates the number of elements for the specified
5914 lpfc_sli4_dealloc_resource_identifiers(struct lpfc_hba *phba)
5916 if (phba->sli4_hba.extents_in_use) {
5917 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
5918 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
5919 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
5920 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
5922 kfree(phba->vpi_bmask);
5923 phba->sli4_hba.max_cfg_param.vpi_used = 0;
5924 kfree(phba->vpi_ids);
5925 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5926 kfree(phba->sli4_hba.xri_bmask);
5927 kfree(phba->sli4_hba.xri_ids);
5928 kfree(phba->sli4_hba.vfi_bmask);
5929 kfree(phba->sli4_hba.vfi_ids);
5930 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5931 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5938 * lpfc_sli4_get_allocated_extnts - Get the port's allocated extents.
5939 * @phba: Pointer to HBA context object.
5940 * @type: The resource extent type.
5941 * @extnt_count: buffer to hold port extent count response
5942 * @extnt_size: buffer to hold port extent size response.
5944 * This function calls the port to read the host allocated extents
5945 * for a particular type.
5948 lpfc_sli4_get_allocated_extnts(struct lpfc_hba *phba, uint16_t type,
5949 uint16_t *extnt_cnt, uint16_t *extnt_size)
5953 uint16_t curr_blks = 0;
5954 uint32_t req_len, emb_len;
5955 uint32_t alloc_len, mbox_tmo;
5956 struct list_head *blk_list_head;
5957 struct lpfc_rsrc_blks *rsrc_blk;
5959 void *virtaddr = NULL;
5960 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5961 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5962 union lpfc_sli4_cfg_shdr *shdr;
5965 case LPFC_RSC_TYPE_FCOE_VPI:
5966 blk_list_head = &phba->lpfc_vpi_blk_list;
5968 case LPFC_RSC_TYPE_FCOE_XRI:
5969 blk_list_head = &phba->sli4_hba.lpfc_xri_blk_list;
5971 case LPFC_RSC_TYPE_FCOE_VFI:
5972 blk_list_head = &phba->sli4_hba.lpfc_vfi_blk_list;
5974 case LPFC_RSC_TYPE_FCOE_RPI:
5975 blk_list_head = &phba->sli4_hba.lpfc_rpi_blk_list;
5981 /* Count the number of extents currently allocatd for this type. */
5982 list_for_each_entry(rsrc_blk, blk_list_head, list) {
5983 if (curr_blks == 0) {
5985 * The GET_ALLOCATED mailbox does not return the size,
5986 * just the count. The size should be just the size
5987 * stored in the current allocated block and all sizes
5988 * for an extent type are the same so set the return
5991 *extnt_size = rsrc_blk->rsrc_size;
5997 * Calculate the size of an embedded mailbox. The uint32_t
5998 * accounts for extents-specific word.
6000 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
6004 * Presume the allocation and response will fit into an embedded
6005 * mailbox. If not true, reconfigure to a non-embedded mailbox.
6007 emb = LPFC_SLI4_MBX_EMBED;
6009 if (req_len > emb_len) {
6010 req_len = curr_blks * sizeof(uint16_t) +
6011 sizeof(union lpfc_sli4_cfg_shdr) +
6013 emb = LPFC_SLI4_MBX_NEMBED;
6016 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6019 memset(mbox, 0, sizeof(LPFC_MBOXQ_t));
6021 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6022 LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT,
6024 if (alloc_len < req_len) {
6025 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6026 "2983 Allocated DMA memory size (x%x) is "
6027 "less than the requested DMA memory "
6028 "size (x%x)\n", alloc_len, req_len);
6032 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, curr_blks, type, emb);
6038 if (!phba->sli4_hba.intr_enable)
6039 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
6041 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
6042 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
6051 * Figure out where the response is located. Then get local pointers
6052 * to the response data. The port does not guarantee to respond to
6053 * all extents counts request so update the local variable with the
6054 * allocated count from the port.
6056 if (emb == LPFC_SLI4_MBX_EMBED) {
6057 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
6058 shdr = &rsrc_ext->header.cfg_shdr;
6059 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
6061 virtaddr = mbox->sge_array->addr[0];
6062 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
6063 shdr = &n_rsrc->cfg_shdr;
6064 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
6067 if (bf_get(lpfc_mbox_hdr_status, &shdr->response)) {
6068 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
6069 "2984 Failed to read allocated resources "
6070 "for type %d - Status 0x%x Add'l Status 0x%x.\n",
6072 bf_get(lpfc_mbox_hdr_status, &shdr->response),
6073 bf_get(lpfc_mbox_hdr_add_status, &shdr->response));
6078 lpfc_sli4_mbox_cmd_free(phba, mbox);
6083 * lpfc_sli4_repost_els_sgl_list - Repsot the els buffers sgl pages as block
6084 * @phba: pointer to lpfc hba data structure.
6086 * This routine walks the list of els buffers that have been allocated and
6087 * repost them to the port by using SGL block post. This is needed after a
6088 * pci_function_reset/warm_start or start. It attempts to construct blocks
6089 * of els buffer sgls which contains contiguous xris and uses the non-embedded
6090 * SGL block post mailbox commands to post them to the port. For single els
6091 * buffer sgl with non-contiguous xri, if any, it shall use embedded SGL post
6092 * mailbox command for posting.
6094 * Returns: 0 = success, non-zero failure.
6097 lpfc_sli4_repost_els_sgl_list(struct lpfc_hba *phba)
6099 struct lpfc_sglq *sglq_entry = NULL;
6100 struct lpfc_sglq *sglq_entry_next = NULL;
6101 struct lpfc_sglq *sglq_entry_first = NULL;
6102 int status, total_cnt, post_cnt = 0, num_posted = 0, block_cnt = 0;
6103 int last_xritag = NO_XRI;
6104 struct lpfc_sli_ring *pring;
6105 LIST_HEAD(prep_sgl_list);
6106 LIST_HEAD(blck_sgl_list);
6107 LIST_HEAD(allc_sgl_list);
6108 LIST_HEAD(post_sgl_list);
6109 LIST_HEAD(free_sgl_list);
6111 pring = &phba->sli.ring[LPFC_ELS_RING];
6112 spin_lock_irq(&phba->hbalock);
6113 spin_lock(&pring->ring_lock);
6114 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &allc_sgl_list);
6115 spin_unlock(&pring->ring_lock);
6116 spin_unlock_irq(&phba->hbalock);
6118 total_cnt = phba->sli4_hba.els_xri_cnt;
6119 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
6120 &allc_sgl_list, list) {
6121 list_del_init(&sglq_entry->list);
6123 if ((last_xritag != NO_XRI) &&
6124 (sglq_entry->sli4_xritag != last_xritag + 1)) {
6125 /* a hole in xri block, form a sgl posting block */
6126 list_splice_init(&prep_sgl_list, &blck_sgl_list);
6127 post_cnt = block_cnt - 1;
6128 /* prepare list for next posting block */
6129 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6132 /* prepare list for next posting block */
6133 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6134 /* enough sgls for non-embed sgl mbox command */
6135 if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
6136 list_splice_init(&prep_sgl_list,
6138 post_cnt = block_cnt;
6144 /* keep track of last sgl's xritag */
6145 last_xritag = sglq_entry->sli4_xritag;
6147 /* end of repost sgl list condition for els buffers */
6148 if (num_posted == phba->sli4_hba.els_xri_cnt) {
6149 if (post_cnt == 0) {
6150 list_splice_init(&prep_sgl_list,
6152 post_cnt = block_cnt;
6153 } else if (block_cnt == 1) {
6154 status = lpfc_sli4_post_sgl(phba,
6155 sglq_entry->phys, 0,
6156 sglq_entry->sli4_xritag);
6158 /* successful, put sgl to posted list */
6159 list_add_tail(&sglq_entry->list,
6162 /* Failure, put sgl to free list */
6163 lpfc_printf_log(phba, KERN_WARNING,
6165 "3159 Failed to post els "
6166 "sgl, xritag:x%x\n",
6167 sglq_entry->sli4_xritag);
6168 list_add_tail(&sglq_entry->list,
6175 /* continue until a nembed page worth of sgls */
6179 /* post the els buffer list sgls as a block */
6180 status = lpfc_sli4_post_els_sgl_list(phba, &blck_sgl_list,
6184 /* success, put sgl list to posted sgl list */
6185 list_splice_init(&blck_sgl_list, &post_sgl_list);
6187 /* Failure, put sgl list to free sgl list */
6188 sglq_entry_first = list_first_entry(&blck_sgl_list,
6191 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6192 "3160 Failed to post els sgl-list, "
6194 sglq_entry_first->sli4_xritag,
6195 (sglq_entry_first->sli4_xritag +
6197 list_splice_init(&blck_sgl_list, &free_sgl_list);
6198 total_cnt -= post_cnt;
6201 /* don't reset xirtag due to hole in xri block */
6203 last_xritag = NO_XRI;
6205 /* reset els sgl post count for next round of posting */
6208 /* update the number of XRIs posted for ELS */
6209 phba->sli4_hba.els_xri_cnt = total_cnt;
6211 /* free the els sgls failed to post */
6212 lpfc_free_sgl_list(phba, &free_sgl_list);
6214 /* push els sgls posted to the availble list */
6215 if (!list_empty(&post_sgl_list)) {
6216 spin_lock_irq(&phba->hbalock);
6217 spin_lock(&pring->ring_lock);
6218 list_splice_init(&post_sgl_list,
6219 &phba->sli4_hba.lpfc_sgl_list);
6220 spin_unlock(&pring->ring_lock);
6221 spin_unlock_irq(&phba->hbalock);
6223 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6224 "3161 Failure to post els sgl to port.\n");
6231 * lpfc_sli4_hba_setup - SLI4 device intialization PCI function
6232 * @phba: Pointer to HBA context object.
6234 * This function is the main SLI4 device intialization PCI function. This
6235 * function is called by the HBA intialization code, HBA reset code and
6236 * HBA error attention handler code. Caller is not required to hold any
6240 lpfc_sli4_hba_setup(struct lpfc_hba *phba)
6243 LPFC_MBOXQ_t *mboxq;
6244 struct lpfc_mqe *mqe;
6247 uint32_t ftr_rsp = 0;
6248 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
6249 struct lpfc_vport *vport = phba->pport;
6250 struct lpfc_dmabuf *mp;
6252 /* Perform a PCI function reset to start from clean */
6253 rc = lpfc_pci_function_reset(phba);
6257 /* Check the HBA Host Status Register for readyness */
6258 rc = lpfc_sli4_post_status_check(phba);
6262 spin_lock_irq(&phba->hbalock);
6263 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
6264 spin_unlock_irq(&phba->hbalock);
6268 * Allocate a single mailbox container for initializing the
6271 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6275 /* Issue READ_REV to collect vpd and FW information. */
6276 vpd_size = SLI4_PAGE_SIZE;
6277 vpd = kzalloc(vpd_size, GFP_KERNEL);
6283 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
6289 mqe = &mboxq->u.mqe;
6290 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
6291 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev))
6292 phba->hba_flag |= HBA_FCOE_MODE;
6294 phba->hba_flag &= ~HBA_FCOE_MODE;
6296 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
6298 phba->hba_flag |= HBA_FIP_SUPPORT;
6300 phba->hba_flag &= ~HBA_FIP_SUPPORT;
6302 phba->hba_flag &= ~HBA_FCP_IOQ_FLUSH;
6304 if (phba->sli_rev != LPFC_SLI_REV4) {
6305 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6306 "0376 READ_REV Error. SLI Level %d "
6307 "FCoE enabled %d\n",
6308 phba->sli_rev, phba->hba_flag & HBA_FCOE_MODE);
6315 * Continue initialization with default values even if driver failed
6316 * to read FCoE param config regions, only read parameters if the
6319 if (phba->hba_flag & HBA_FCOE_MODE &&
6320 lpfc_sli4_read_fcoe_params(phba))
6321 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_INIT,
6322 "2570 Failed to read FCoE parameters\n");
6325 * Retrieve sli4 device physical port name, failure of doing it
6326 * is considered as non-fatal.
6328 rc = lpfc_sli4_retrieve_pport_name(phba);
6330 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6331 "3080 Successful retrieving SLI4 device "
6332 "physical port name: %s.\n", phba->Port);
6335 * Evaluate the read rev and vpd data. Populate the driver
6336 * state with the results. If this routine fails, the failure
6337 * is not fatal as the driver will use generic values.
6339 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
6340 if (unlikely(!rc)) {
6341 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6342 "0377 Error %d parsing vpd. "
6343 "Using defaults.\n", rc);
6348 /* Save information as VPD data */
6349 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
6350 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
6351 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
6352 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
6354 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
6356 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
6358 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
6360 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
6361 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
6362 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
6363 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
6364 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
6365 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
6366 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6367 "(%d):0380 READ_REV Status x%x "
6368 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
6369 mboxq->vport ? mboxq->vport->vpi : 0,
6370 bf_get(lpfc_mqe_status, mqe),
6371 phba->vpd.rev.opFwName,
6372 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
6373 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
6375 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */
6376 rc = (phba->sli4_hba.max_cfg_param.max_xri >> 3);
6377 if (phba->pport->cfg_lun_queue_depth > rc) {
6378 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6379 "3362 LUN queue depth changed from %d to %d\n",
6380 phba->pport->cfg_lun_queue_depth, rc);
6381 phba->pport->cfg_lun_queue_depth = rc;
6386 * Discover the port's supported feature set and match it against the
6389 lpfc_request_features(phba, mboxq);
6390 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6397 * The port must support FCP initiator mode as this is the
6398 * only mode running in the host.
6400 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
6401 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6402 "0378 No support for fcpi mode.\n");
6405 if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh, &mqe->un.req_ftrs))
6406 phba->sli3_options |= LPFC_SLI4_PERFH_ENABLED;
6408 phba->sli3_options &= ~LPFC_SLI4_PERFH_ENABLED;
6410 * If the port cannot support the host's requested features
6411 * then turn off the global config parameters to disable the
6412 * feature in the driver. This is not a fatal error.
6414 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
6415 if (phba->cfg_enable_bg) {
6416 if (bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))
6417 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
6422 if (phba->max_vpi && phba->cfg_enable_npiv &&
6423 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6427 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6428 "0379 Feature Mismatch Data: x%08x %08x "
6429 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
6430 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
6431 phba->cfg_enable_npiv, phba->max_vpi);
6432 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
6433 phba->cfg_enable_bg = 0;
6434 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6435 phba->cfg_enable_npiv = 0;
6438 /* These SLI3 features are assumed in SLI4 */
6439 spin_lock_irq(&phba->hbalock);
6440 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
6441 spin_unlock_irq(&phba->hbalock);
6444 * Allocate all resources (xri,rpi,vpi,vfi) now. Subsequent
6445 * calls depends on these resources to complete port setup.
6447 rc = lpfc_sli4_alloc_resource_identifiers(phba);
6449 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6450 "2920 Failed to alloc Resource IDs "
6455 /* Read the port's service parameters. */
6456 rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
6458 phba->link_state = LPFC_HBA_ERROR;
6463 mboxq->vport = vport;
6464 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6465 mp = (struct lpfc_dmabuf *) mboxq->context1;
6466 if (rc == MBX_SUCCESS) {
6467 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
6472 * This memory was allocated by the lpfc_read_sparam routine. Release
6473 * it to the mbuf pool.
6475 lpfc_mbuf_free(phba, mp->virt, mp->phys);
6477 mboxq->context1 = NULL;
6479 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6480 "0382 READ_SPARAM command failed "
6481 "status %d, mbxStatus x%x\n",
6482 rc, bf_get(lpfc_mqe_status, mqe));
6483 phba->link_state = LPFC_HBA_ERROR;
6488 lpfc_update_vport_wwn(vport);
6490 /* Update the fc_host data structures with new wwn. */
6491 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
6492 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
6494 /* update host els and scsi xri-sgl sizes and mappings */
6495 rc = lpfc_sli4_xri_sgl_update(phba);
6497 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6498 "1400 Failed to update xri-sgl size and "
6499 "mapping: %d\n", rc);
6503 /* register the els sgl pool to the port */
6504 rc = lpfc_sli4_repost_els_sgl_list(phba);
6506 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6507 "0582 Error %d during els sgl post "
6513 /* register the allocated scsi sgl pool to the port */
6514 rc = lpfc_sli4_repost_scsi_sgl_list(phba);
6516 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6517 "0383 Error %d during scsi sgl post "
6519 /* Some Scsi buffers were moved to the abort scsi list */
6520 /* A pci function reset will repost them */
6525 /* Post the rpi header region to the device. */
6526 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
6528 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6529 "0393 Error %d during rpi post operation\n",
6534 lpfc_sli4_node_prep(phba);
6536 /* Create all the SLI4 queues */
6537 rc = lpfc_sli4_queue_create(phba);
6539 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6540 "3089 Failed to allocate queues\n");
6542 goto out_stop_timers;
6544 /* Set up all the queues to the device */
6545 rc = lpfc_sli4_queue_setup(phba);
6547 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6548 "0381 Error %d during queue setup.\n ", rc);
6549 goto out_destroy_queue;
6552 /* Arm the CQs and then EQs on device */
6553 lpfc_sli4_arm_cqeq_intr(phba);
6555 /* Indicate device interrupt mode */
6556 phba->sli4_hba.intr_enable = 1;
6558 /* Allow asynchronous mailbox command to go through */
6559 spin_lock_irq(&phba->hbalock);
6560 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
6561 spin_unlock_irq(&phba->hbalock);
6563 /* Post receive buffers to the device */
6564 lpfc_sli4_rb_setup(phba);
6566 /* Reset HBA FCF states after HBA reset */
6567 phba->fcf.fcf_flag = 0;
6568 phba->fcf.current_rec.flag = 0;
6570 /* Start the ELS watchdog timer */
6571 mod_timer(&vport->els_tmofunc,
6572 jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov * 2)));
6574 /* Start heart beat timer */
6575 mod_timer(&phba->hb_tmofunc,
6576 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
6577 phba->hb_outstanding = 0;
6578 phba->last_completion_time = jiffies;
6580 /* Start error attention (ERATT) polling timer */
6581 mod_timer(&phba->eratt_poll,
6582 jiffies + msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
6584 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
6585 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
6586 rc = pci_enable_pcie_error_reporting(phba->pcidev);
6588 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6589 "2829 This device supports "
6590 "Advanced Error Reporting (AER)\n");
6591 spin_lock_irq(&phba->hbalock);
6592 phba->hba_flag |= HBA_AER_ENABLED;
6593 spin_unlock_irq(&phba->hbalock);
6595 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6596 "2830 This device does not support "
6597 "Advanced Error Reporting (AER)\n");
6598 phba->cfg_aer_support = 0;
6603 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
6605 * The FC Port needs to register FCFI (index 0)
6607 lpfc_reg_fcfi(phba, mboxq);
6608 mboxq->vport = phba->pport;
6609 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6610 if (rc != MBX_SUCCESS)
6611 goto out_unset_queue;
6613 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi,
6614 &mboxq->u.mqe.un.reg_fcfi);
6616 /* Check if the port is configured to be disabled */
6617 lpfc_sli_read_link_ste(phba);
6621 * The port is ready, set the host's link state to LINK_DOWN
6622 * in preparation for link interrupts.
6624 spin_lock_irq(&phba->hbalock);
6625 phba->link_state = LPFC_LINK_DOWN;
6626 spin_unlock_irq(&phba->hbalock);
6627 if (!(phba->hba_flag & HBA_FCOE_MODE) &&
6628 (phba->hba_flag & LINK_DISABLED)) {
6629 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
6630 "3103 Adapter Link is disabled.\n");
6631 lpfc_down_link(phba, mboxq);
6632 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6633 if (rc != MBX_SUCCESS) {
6634 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
6635 "3104 Adapter failed to issue "
6636 "DOWN_LINK mbox cmd, rc:x%x\n", rc);
6637 goto out_unset_queue;
6639 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
6640 /* don't perform init_link on SLI4 FC port loopback test */
6641 if (!(phba->link_flag & LS_LOOPBACK_MODE)) {
6642 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
6644 goto out_unset_queue;
6647 mempool_free(mboxq, phba->mbox_mem_pool);
6650 /* Unset all the queues set up in this routine when error out */
6651 lpfc_sli4_queue_unset(phba);
6653 lpfc_sli4_queue_destroy(phba);
6655 lpfc_stop_hba_timers(phba);
6657 mempool_free(mboxq, phba->mbox_mem_pool);
6662 * lpfc_mbox_timeout - Timeout call back function for mbox timer
6663 * @ptr: context object - pointer to hba structure.
6665 * This is the callback function for mailbox timer. The mailbox
6666 * timer is armed when a new mailbox command is issued and the timer
6667 * is deleted when the mailbox complete. The function is called by
6668 * the kernel timer code when a mailbox does not complete within
6669 * expected time. This function wakes up the worker thread to
6670 * process the mailbox timeout and returns. All the processing is
6671 * done by the worker thread function lpfc_mbox_timeout_handler.
6674 lpfc_mbox_timeout(unsigned long ptr)
6676 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
6677 unsigned long iflag;
6678 uint32_t tmo_posted;
6680 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
6681 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
6683 phba->pport->work_port_events |= WORKER_MBOX_TMO;
6684 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
6687 lpfc_worker_wake_up(phba);
6692 * lpfc_sli4_mbox_completions_pending - check to see if any mailbox completions
6694 * @phba: Pointer to HBA context object.
6696 * This function checks if any mailbox completions are present on the mailbox
6700 lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba)
6704 struct lpfc_queue *mcq;
6705 struct lpfc_mcqe *mcqe;
6706 bool pending_completions = false;
6708 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
6711 /* Check for completions on mailbox completion queue */
6713 mcq = phba->sli4_hba.mbx_cq;
6714 idx = mcq->hba_index;
6715 while (bf_get_le32(lpfc_cqe_valid, mcq->qe[idx].cqe)) {
6716 mcqe = (struct lpfc_mcqe *)mcq->qe[idx].cqe;
6717 if (bf_get_le32(lpfc_trailer_completed, mcqe) &&
6718 (!bf_get_le32(lpfc_trailer_async, mcqe))) {
6719 pending_completions = true;
6722 idx = (idx + 1) % mcq->entry_count;
6723 if (mcq->hba_index == idx)
6726 return pending_completions;
6731 * lpfc_sli4_process_missed_mbox_completions - process mbox completions
6733 * @phba: Pointer to HBA context object.
6735 * For sli4, it is possible to miss an interrupt. As such mbox completions
6736 * maybe missed causing erroneous mailbox timeouts to occur. This function
6737 * checks to see if mbox completions are on the mailbox completion queue
6738 * and will process all the completions associated with the eq for the
6739 * mailbox completion queue.
6742 lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba)
6746 struct lpfc_queue *fpeq = NULL;
6747 struct lpfc_eqe *eqe;
6750 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
6753 /* Find the eq associated with the mcq */
6755 if (phba->sli4_hba.hba_eq)
6756 for (eqidx = 0; eqidx < phba->cfg_fcp_io_channel; eqidx++)
6757 if (phba->sli4_hba.hba_eq[eqidx]->queue_id ==
6758 phba->sli4_hba.mbx_cq->assoc_qid) {
6759 fpeq = phba->sli4_hba.hba_eq[eqidx];
6765 /* Turn off interrupts from this EQ */
6767 lpfc_sli4_eq_clr_intr(fpeq);
6769 /* Check to see if a mbox completion is pending */
6771 mbox_pending = lpfc_sli4_mbox_completions_pending(phba);
6774 * If a mbox completion is pending, process all the events on EQ
6775 * associated with the mbox completion queue (this could include
6776 * mailbox commands, async events, els commands, receive queue data
6781 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
6782 lpfc_sli4_hba_handle_eqe(phba, eqe, eqidx);
6783 fpeq->EQ_processed++;
6786 /* Always clear and re-arm the EQ */
6788 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
6790 return mbox_pending;
6795 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
6796 * @phba: Pointer to HBA context object.
6798 * This function is called from worker thread when a mailbox command times out.
6799 * The caller is not required to hold any locks. This function will reset the
6800 * HBA and recover all the pending commands.
6803 lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
6805 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
6806 MAILBOX_t *mb = NULL;
6808 struct lpfc_sli *psli = &phba->sli;
6810 /* If the mailbox completed, process the completion and return */
6811 if (lpfc_sli4_process_missed_mbox_completions(phba))
6816 /* Check the pmbox pointer first. There is a race condition
6817 * between the mbox timeout handler getting executed in the
6818 * worklist and the mailbox actually completing. When this
6819 * race condition occurs, the mbox_active will be NULL.
6821 spin_lock_irq(&phba->hbalock);
6822 if (pmbox == NULL) {
6823 lpfc_printf_log(phba, KERN_WARNING,
6825 "0353 Active Mailbox cleared - mailbox timeout "
6827 spin_unlock_irq(&phba->hbalock);
6831 /* Mbox cmd <mbxCommand> timeout */
6832 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6833 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
6835 phba->pport->port_state,
6837 phba->sli.mbox_active);
6838 spin_unlock_irq(&phba->hbalock);
6840 /* Setting state unknown so lpfc_sli_abort_iocb_ring
6841 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
6842 * it to fail all outstanding SCSI IO.
6844 spin_lock_irq(&phba->pport->work_port_lock);
6845 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
6846 spin_unlock_irq(&phba->pport->work_port_lock);
6847 spin_lock_irq(&phba->hbalock);
6848 phba->link_state = LPFC_LINK_UNKNOWN;
6849 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
6850 spin_unlock_irq(&phba->hbalock);
6852 lpfc_sli_abort_fcp_rings(phba);
6854 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6855 "0345 Resetting board due to mailbox timeout\n");
6857 /* Reset the HBA device */
6858 lpfc_reset_hba(phba);
6862 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
6863 * @phba: Pointer to HBA context object.
6864 * @pmbox: Pointer to mailbox object.
6865 * @flag: Flag indicating how the mailbox need to be processed.
6867 * This function is called by discovery code and HBA management code
6868 * to submit a mailbox command to firmware with SLI-3 interface spec. This
6869 * function gets the hbalock to protect the data structures.
6870 * The mailbox command can be submitted in polling mode, in which case
6871 * this function will wait in a polling loop for the completion of the
6873 * If the mailbox is submitted in no_wait mode (not polling) the
6874 * function will submit the command and returns immediately without waiting
6875 * for the mailbox completion. The no_wait is supported only when HBA
6876 * is in SLI2/SLI3 mode - interrupts are enabled.
6877 * The SLI interface allows only one mailbox pending at a time. If the
6878 * mailbox is issued in polling mode and there is already a mailbox
6879 * pending, then the function will return an error. If the mailbox is issued
6880 * in NO_WAIT mode and there is a mailbox pending already, the function
6881 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
6882 * The sli layer owns the mailbox object until the completion of mailbox
6883 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
6884 * return codes the caller owns the mailbox command after the return of
6888 lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
6892 struct lpfc_sli *psli = &phba->sli;
6893 uint32_t status, evtctr;
6894 uint32_t ha_copy, hc_copy;
6896 unsigned long timeout;
6897 unsigned long drvr_flag = 0;
6898 uint32_t word0, ldata;
6899 void __iomem *to_slim;
6900 int processing_queue = 0;
6902 spin_lock_irqsave(&phba->hbalock, drvr_flag);
6904 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6905 /* processing mbox queue from intr_handler */
6906 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
6907 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6910 processing_queue = 1;
6911 pmbox = lpfc_mbox_get(phba);
6913 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6918 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
6919 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
6921 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6922 lpfc_printf_log(phba, KERN_ERR,
6923 LOG_MBOX | LOG_VPORT,
6924 "1806 Mbox x%x failed. No vport\n",
6925 pmbox->u.mb.mbxCommand);
6927 goto out_not_finished;
6931 /* If the PCI channel is in offline state, do not post mbox. */
6932 if (unlikely(pci_channel_offline(phba->pcidev))) {
6933 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6934 goto out_not_finished;
6937 /* If HBA has a deferred error attention, fail the iocb. */
6938 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
6939 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6940 goto out_not_finished;
6946 status = MBX_SUCCESS;
6948 if (phba->link_state == LPFC_HBA_ERROR) {
6949 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6951 /* Mbox command <mbxCommand> cannot issue */
6952 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6953 "(%d):0311 Mailbox command x%x cannot "
6954 "issue Data: x%x x%x\n",
6955 pmbox->vport ? pmbox->vport->vpi : 0,
6956 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
6957 goto out_not_finished;
6960 if (mbx->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT) {
6961 if (lpfc_readl(phba->HCregaddr, &hc_copy) ||
6962 !(hc_copy & HC_MBINT_ENA)) {
6963 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6964 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6965 "(%d):2528 Mailbox command x%x cannot "
6966 "issue Data: x%x x%x\n",
6967 pmbox->vport ? pmbox->vport->vpi : 0,
6968 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
6969 goto out_not_finished;
6973 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
6974 /* Polling for a mbox command when another one is already active
6975 * is not allowed in SLI. Also, the driver must have established
6976 * SLI2 mode to queue and process multiple mbox commands.
6979 if (flag & MBX_POLL) {
6980 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6982 /* Mbox command <mbxCommand> cannot issue */
6983 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6984 "(%d):2529 Mailbox command x%x "
6985 "cannot issue Data: x%x x%x\n",
6986 pmbox->vport ? pmbox->vport->vpi : 0,
6987 pmbox->u.mb.mbxCommand,
6988 psli->sli_flag, flag);
6989 goto out_not_finished;
6992 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
6993 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6994 /* Mbox command <mbxCommand> cannot issue */
6995 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6996 "(%d):2530 Mailbox command x%x "
6997 "cannot issue Data: x%x x%x\n",
6998 pmbox->vport ? pmbox->vport->vpi : 0,
6999 pmbox->u.mb.mbxCommand,
7000 psli->sli_flag, flag);
7001 goto out_not_finished;
7004 /* Another mailbox command is still being processed, queue this
7005 * command to be processed later.
7007 lpfc_mbox_put(phba, pmbox);
7009 /* Mbox cmd issue - BUSY */
7010 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7011 "(%d):0308 Mbox cmd issue - BUSY Data: "
7012 "x%x x%x x%x x%x\n",
7013 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
7014 mbx->mbxCommand, phba->pport->port_state,
7015 psli->sli_flag, flag);
7017 psli->slistat.mbox_busy++;
7018 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7021 lpfc_debugfs_disc_trc(pmbox->vport,
7022 LPFC_DISC_TRC_MBOX_VPORT,
7023 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
7024 (uint32_t)mbx->mbxCommand,
7025 mbx->un.varWords[0], mbx->un.varWords[1]);
7028 lpfc_debugfs_disc_trc(phba->pport,
7030 "MBOX Bsy: cmd:x%x mb:x%x x%x",
7031 (uint32_t)mbx->mbxCommand,
7032 mbx->un.varWords[0], mbx->un.varWords[1]);
7038 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7040 /* If we are not polling, we MUST be in SLI2 mode */
7041 if (flag != MBX_POLL) {
7042 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
7043 (mbx->mbxCommand != MBX_KILL_BOARD)) {
7044 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7045 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7046 /* Mbox command <mbxCommand> cannot issue */
7047 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7048 "(%d):2531 Mailbox command x%x "
7049 "cannot issue Data: x%x x%x\n",
7050 pmbox->vport ? pmbox->vport->vpi : 0,
7051 pmbox->u.mb.mbxCommand,
7052 psli->sli_flag, flag);
7053 goto out_not_finished;
7055 /* timeout active mbox command */
7056 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
7058 mod_timer(&psli->mbox_tmo, jiffies + timeout);
7061 /* Mailbox cmd <cmd> issue */
7062 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7063 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
7065 pmbox->vport ? pmbox->vport->vpi : 0,
7066 mbx->mbxCommand, phba->pport->port_state,
7067 psli->sli_flag, flag);
7069 if (mbx->mbxCommand != MBX_HEARTBEAT) {
7071 lpfc_debugfs_disc_trc(pmbox->vport,
7072 LPFC_DISC_TRC_MBOX_VPORT,
7073 "MBOX Send vport: cmd:x%x mb:x%x x%x",
7074 (uint32_t)mbx->mbxCommand,
7075 mbx->un.varWords[0], mbx->un.varWords[1]);
7078 lpfc_debugfs_disc_trc(phba->pport,
7080 "MBOX Send: cmd:x%x mb:x%x x%x",
7081 (uint32_t)mbx->mbxCommand,
7082 mbx->un.varWords[0], mbx->un.varWords[1]);
7086 psli->slistat.mbox_cmd++;
7087 evtctr = psli->slistat.mbox_event;
7089 /* next set own bit for the adapter and copy over command word */
7090 mbx->mbxOwner = OWN_CHIP;
7092 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7093 /* Populate mbox extension offset word. */
7094 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) {
7095 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
7096 = (uint8_t *)phba->mbox_ext
7097 - (uint8_t *)phba->mbox;
7100 /* Copy the mailbox extension data */
7101 if (pmbox->in_ext_byte_len && pmbox->context2) {
7102 lpfc_sli_pcimem_bcopy(pmbox->context2,
7103 (uint8_t *)phba->mbox_ext,
7104 pmbox->in_ext_byte_len);
7106 /* Copy command data to host SLIM area */
7107 lpfc_sli_pcimem_bcopy(mbx, phba->mbox, MAILBOX_CMD_SIZE);
7109 /* Populate mbox extension offset word. */
7110 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len)
7111 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
7112 = MAILBOX_HBA_EXT_OFFSET;
7114 /* Copy the mailbox extension data */
7115 if (pmbox->in_ext_byte_len && pmbox->context2) {
7116 lpfc_memcpy_to_slim(phba->MBslimaddr +
7117 MAILBOX_HBA_EXT_OFFSET,
7118 pmbox->context2, pmbox->in_ext_byte_len);
7121 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
7122 /* copy command data into host mbox for cmpl */
7123 lpfc_sli_pcimem_bcopy(mbx, phba->mbox, MAILBOX_CMD_SIZE);
7126 /* First copy mbox command data to HBA SLIM, skip past first
7128 to_slim = phba->MBslimaddr + sizeof (uint32_t);
7129 lpfc_memcpy_to_slim(to_slim, &mbx->un.varWords[0],
7130 MAILBOX_CMD_SIZE - sizeof (uint32_t));
7132 /* Next copy over first word, with mbxOwner set */
7133 ldata = *((uint32_t *)mbx);
7134 to_slim = phba->MBslimaddr;
7135 writel(ldata, to_slim);
7136 readl(to_slim); /* flush */
7138 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
7139 /* switch over to host mailbox */
7140 psli->sli_flag |= LPFC_SLI_ACTIVE;
7148 /* Set up reference to mailbox command */
7149 psli->mbox_active = pmbox;
7150 /* Interrupt board to do it */
7151 writel(CA_MBATT, phba->CAregaddr);
7152 readl(phba->CAregaddr); /* flush */
7153 /* Don't wait for it to finish, just return */
7157 /* Set up null reference to mailbox command */
7158 psli->mbox_active = NULL;
7159 /* Interrupt board to do it */
7160 writel(CA_MBATT, phba->CAregaddr);
7161 readl(phba->CAregaddr); /* flush */
7163 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7164 /* First read mbox status word */
7165 word0 = *((uint32_t *)phba->mbox);
7166 word0 = le32_to_cpu(word0);
7168 /* First read mbox status word */
7169 if (lpfc_readl(phba->MBslimaddr, &word0)) {
7170 spin_unlock_irqrestore(&phba->hbalock,
7172 goto out_not_finished;
7176 /* Read the HBA Host Attention Register */
7177 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
7178 spin_unlock_irqrestore(&phba->hbalock,
7180 goto out_not_finished;
7182 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
7185 /* Wait for command to complete */
7186 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
7187 (!(ha_copy & HA_MBATT) &&
7188 (phba->link_state > LPFC_WARM_START))) {
7189 if (time_after(jiffies, timeout)) {
7190 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7191 spin_unlock_irqrestore(&phba->hbalock,
7193 goto out_not_finished;
7196 /* Check if we took a mbox interrupt while we were
7198 if (((word0 & OWN_CHIP) != OWN_CHIP)
7199 && (evtctr != psli->slistat.mbox_event))
7203 spin_unlock_irqrestore(&phba->hbalock,
7206 spin_lock_irqsave(&phba->hbalock, drvr_flag);
7209 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7210 /* First copy command data */
7211 word0 = *((uint32_t *)phba->mbox);
7212 word0 = le32_to_cpu(word0);
7213 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
7216 /* Check real SLIM for any errors */
7217 slimword0 = readl(phba->MBslimaddr);
7218 slimmb = (MAILBOX_t *) & slimword0;
7219 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
7220 && slimmb->mbxStatus) {
7227 /* First copy command data */
7228 word0 = readl(phba->MBslimaddr);
7230 /* Read the HBA Host Attention Register */
7231 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
7232 spin_unlock_irqrestore(&phba->hbalock,
7234 goto out_not_finished;
7238 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7239 /* copy results back to user */
7240 lpfc_sli_pcimem_bcopy(phba->mbox, mbx, MAILBOX_CMD_SIZE);
7241 /* Copy the mailbox extension data */
7242 if (pmbox->out_ext_byte_len && pmbox->context2) {
7243 lpfc_sli_pcimem_bcopy(phba->mbox_ext,
7245 pmbox->out_ext_byte_len);
7248 /* First copy command data */
7249 lpfc_memcpy_from_slim(mbx, phba->MBslimaddr,
7251 /* Copy the mailbox extension data */
7252 if (pmbox->out_ext_byte_len && pmbox->context2) {
7253 lpfc_memcpy_from_slim(pmbox->context2,
7255 MAILBOX_HBA_EXT_OFFSET,
7256 pmbox->out_ext_byte_len);
7260 writel(HA_MBATT, phba->HAregaddr);
7261 readl(phba->HAregaddr); /* flush */
7263 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7264 status = mbx->mbxStatus;
7267 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7271 if (processing_queue) {
7272 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
7273 lpfc_mbox_cmpl_put(phba, pmbox);
7275 return MBX_NOT_FINISHED;
7279 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
7280 * @phba: Pointer to HBA context object.
7282 * The function blocks the posting of SLI4 asynchronous mailbox commands from
7283 * the driver internal pending mailbox queue. It will then try to wait out the
7284 * possible outstanding mailbox command before return.
7287 * 0 - the outstanding mailbox command completed; otherwise, the wait for
7288 * the outstanding mailbox command timed out.
7291 lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
7293 struct lpfc_sli *psli = &phba->sli;
7295 unsigned long timeout = 0;
7297 /* Mark the asynchronous mailbox command posting as blocked */
7298 spin_lock_irq(&phba->hbalock);
7299 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
7300 /* Determine how long we might wait for the active mailbox
7301 * command to be gracefully completed by firmware.
7303 if (phba->sli.mbox_active)
7304 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
7305 phba->sli.mbox_active) *
7307 spin_unlock_irq(&phba->hbalock);
7309 /* Make sure the mailbox is really active */
7311 lpfc_sli4_process_missed_mbox_completions(phba);
7313 /* Wait for the outstnading mailbox command to complete */
7314 while (phba->sli.mbox_active) {
7315 /* Check active mailbox complete status every 2ms */
7317 if (time_after(jiffies, timeout)) {
7318 /* Timeout, marked the outstanding cmd not complete */
7324 /* Can not cleanly block async mailbox command, fails it */
7326 spin_lock_irq(&phba->hbalock);
7327 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7328 spin_unlock_irq(&phba->hbalock);
7334 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
7335 * @phba: Pointer to HBA context object.
7337 * The function unblocks and resume posting of SLI4 asynchronous mailbox
7338 * commands from the driver internal pending mailbox queue. It makes sure
7339 * that there is no outstanding mailbox command before resuming posting
7340 * asynchronous mailbox commands. If, for any reason, there is outstanding
7341 * mailbox command, it will try to wait it out before resuming asynchronous
7342 * mailbox command posting.
7345 lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
7347 struct lpfc_sli *psli = &phba->sli;
7349 spin_lock_irq(&phba->hbalock);
7350 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7351 /* Asynchronous mailbox posting is not blocked, do nothing */
7352 spin_unlock_irq(&phba->hbalock);
7356 /* Outstanding synchronous mailbox command is guaranteed to be done,
7357 * successful or timeout, after timing-out the outstanding mailbox
7358 * command shall always be removed, so just unblock posting async
7359 * mailbox command and resume
7361 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7362 spin_unlock_irq(&phba->hbalock);
7364 /* wake up worker thread to post asynchronlous mailbox command */
7365 lpfc_worker_wake_up(phba);
7369 * lpfc_sli4_wait_bmbx_ready - Wait for bootstrap mailbox register ready
7370 * @phba: Pointer to HBA context object.
7371 * @mboxq: Pointer to mailbox object.
7373 * The function waits for the bootstrap mailbox register ready bit from
7374 * port for twice the regular mailbox command timeout value.
7376 * 0 - no timeout on waiting for bootstrap mailbox register ready.
7377 * MBXERR_ERROR - wait for bootstrap mailbox register timed out.
7380 lpfc_sli4_wait_bmbx_ready(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7383 unsigned long timeout;
7384 struct lpfc_register bmbx_reg;
7386 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mboxq)
7390 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
7391 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
7395 if (time_after(jiffies, timeout))
7396 return MBXERR_ERROR;
7397 } while (!db_ready);
7403 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
7404 * @phba: Pointer to HBA context object.
7405 * @mboxq: Pointer to mailbox object.
7407 * The function posts a mailbox to the port. The mailbox is expected
7408 * to be comletely filled in and ready for the port to operate on it.
7409 * This routine executes a synchronous completion operation on the
7410 * mailbox by polling for its completion.
7412 * The caller must not be holding any locks when calling this routine.
7415 * MBX_SUCCESS - mailbox posted successfully
7416 * Any of the MBX error values.
7419 lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7421 int rc = MBX_SUCCESS;
7422 unsigned long iflag;
7423 uint32_t mcqe_status;
7425 struct lpfc_sli *psli = &phba->sli;
7426 struct lpfc_mqe *mb = &mboxq->u.mqe;
7427 struct lpfc_bmbx_create *mbox_rgn;
7428 struct dma_address *dma_address;
7431 * Only one mailbox can be active to the bootstrap mailbox region
7432 * at a time and there is no queueing provided.
7434 spin_lock_irqsave(&phba->hbalock, iflag);
7435 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7436 spin_unlock_irqrestore(&phba->hbalock, iflag);
7437 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7438 "(%d):2532 Mailbox command x%x (x%x/x%x) "
7439 "cannot issue Data: x%x x%x\n",
7440 mboxq->vport ? mboxq->vport->vpi : 0,
7441 mboxq->u.mb.mbxCommand,
7442 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7443 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7444 psli->sli_flag, MBX_POLL);
7445 return MBXERR_ERROR;
7447 /* The server grabs the token and owns it until release */
7448 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7449 phba->sli.mbox_active = mboxq;
7450 spin_unlock_irqrestore(&phba->hbalock, iflag);
7452 /* wait for bootstrap mbox register for readyness */
7453 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7458 * Initialize the bootstrap memory region to avoid stale data areas
7459 * in the mailbox post. Then copy the caller's mailbox contents to
7460 * the bmbx mailbox region.
7462 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
7463 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
7464 lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
7465 sizeof(struct lpfc_mqe));
7467 /* Post the high mailbox dma address to the port and wait for ready. */
7468 dma_address = &phba->sli4_hba.bmbx.dma_address;
7469 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
7471 /* wait for bootstrap mbox register for hi-address write done */
7472 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7476 /* Post the low mailbox dma address to the port. */
7477 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
7479 /* wait for bootstrap mbox register for low address write done */
7480 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7485 * Read the CQ to ensure the mailbox has completed.
7486 * If so, update the mailbox status so that the upper layers
7487 * can complete the request normally.
7489 lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
7490 sizeof(struct lpfc_mqe));
7491 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
7492 lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
7493 sizeof(struct lpfc_mcqe));
7494 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
7496 * When the CQE status indicates a failure and the mailbox status
7497 * indicates success then copy the CQE status into the mailbox status
7498 * (and prefix it with x4000).
7500 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
7501 if (bf_get(lpfc_mqe_status, mb) == MBX_SUCCESS)
7502 bf_set(lpfc_mqe_status, mb,
7503 (LPFC_MBX_ERROR_RANGE | mcqe_status));
7506 lpfc_sli4_swap_str(phba, mboxq);
7508 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7509 "(%d):0356 Mailbox cmd x%x (x%x/x%x) Status x%x "
7510 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
7511 " x%x x%x CQ: x%x x%x x%x x%x\n",
7512 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
7513 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7514 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7515 bf_get(lpfc_mqe_status, mb),
7516 mb->un.mb_words[0], mb->un.mb_words[1],
7517 mb->un.mb_words[2], mb->un.mb_words[3],
7518 mb->un.mb_words[4], mb->un.mb_words[5],
7519 mb->un.mb_words[6], mb->un.mb_words[7],
7520 mb->un.mb_words[8], mb->un.mb_words[9],
7521 mb->un.mb_words[10], mb->un.mb_words[11],
7522 mb->un.mb_words[12], mboxq->mcqe.word0,
7523 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
7524 mboxq->mcqe.trailer);
7526 /* We are holding the token, no needed for lock when release */
7527 spin_lock_irqsave(&phba->hbalock, iflag);
7528 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7529 phba->sli.mbox_active = NULL;
7530 spin_unlock_irqrestore(&phba->hbalock, iflag);
7535 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
7536 * @phba: Pointer to HBA context object.
7537 * @pmbox: Pointer to mailbox object.
7538 * @flag: Flag indicating how the mailbox need to be processed.
7540 * This function is called by discovery code and HBA management code to submit
7541 * a mailbox command to firmware with SLI-4 interface spec.
7543 * Return codes the caller owns the mailbox command after the return of the
7547 lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
7550 struct lpfc_sli *psli = &phba->sli;
7551 unsigned long iflags;
7554 /* dump from issue mailbox command if setup */
7555 lpfc_idiag_mbxacc_dump_issue_mbox(phba, &mboxq->u.mb);
7557 rc = lpfc_mbox_dev_check(phba);
7559 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7560 "(%d):2544 Mailbox command x%x (x%x/x%x) "
7561 "cannot issue Data: x%x x%x\n",
7562 mboxq->vport ? mboxq->vport->vpi : 0,
7563 mboxq->u.mb.mbxCommand,
7564 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7565 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7566 psli->sli_flag, flag);
7567 goto out_not_finished;
7570 /* Detect polling mode and jump to a handler */
7571 if (!phba->sli4_hba.intr_enable) {
7572 if (flag == MBX_POLL)
7573 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
7576 if (rc != MBX_SUCCESS)
7577 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7578 "(%d):2541 Mailbox command x%x "
7579 "(x%x/x%x) failure: "
7580 "mqe_sta: x%x mcqe_sta: x%x/x%x "
7582 mboxq->vport ? mboxq->vport->vpi : 0,
7583 mboxq->u.mb.mbxCommand,
7584 lpfc_sli_config_mbox_subsys_get(phba,
7586 lpfc_sli_config_mbox_opcode_get(phba,
7588 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
7589 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
7590 bf_get(lpfc_mcqe_ext_status,
7592 psli->sli_flag, flag);
7594 } else if (flag == MBX_POLL) {
7595 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7596 "(%d):2542 Try to issue mailbox command "
7597 "x%x (x%x/x%x) synchronously ahead of async"
7598 "mailbox command queue: x%x x%x\n",
7599 mboxq->vport ? mboxq->vport->vpi : 0,
7600 mboxq->u.mb.mbxCommand,
7601 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7602 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7603 psli->sli_flag, flag);
7604 /* Try to block the asynchronous mailbox posting */
7605 rc = lpfc_sli4_async_mbox_block(phba);
7607 /* Successfully blocked, now issue sync mbox cmd */
7608 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
7609 if (rc != MBX_SUCCESS)
7610 lpfc_printf_log(phba, KERN_WARNING,
7612 "(%d):2597 Sync Mailbox command "
7613 "x%x (x%x/x%x) failure: "
7614 "mqe_sta: x%x mcqe_sta: x%x/x%x "
7616 mboxq->vport ? mboxq->vport->vpi : 0,
7617 mboxq->u.mb.mbxCommand,
7618 lpfc_sli_config_mbox_subsys_get(phba,
7620 lpfc_sli_config_mbox_opcode_get(phba,
7622 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
7623 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
7624 bf_get(lpfc_mcqe_ext_status,
7626 psli->sli_flag, flag);
7627 /* Unblock the async mailbox posting afterward */
7628 lpfc_sli4_async_mbox_unblock(phba);
7633 /* Now, interrupt mode asynchrous mailbox command */
7634 rc = lpfc_mbox_cmd_check(phba, mboxq);
7636 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7637 "(%d):2543 Mailbox command x%x (x%x/x%x) "
7638 "cannot issue Data: x%x x%x\n",
7639 mboxq->vport ? mboxq->vport->vpi : 0,
7640 mboxq->u.mb.mbxCommand,
7641 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7642 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7643 psli->sli_flag, flag);
7644 goto out_not_finished;
7647 /* Put the mailbox command to the driver internal FIFO */
7648 psli->slistat.mbox_busy++;
7649 spin_lock_irqsave(&phba->hbalock, iflags);
7650 lpfc_mbox_put(phba, mboxq);
7651 spin_unlock_irqrestore(&phba->hbalock, iflags);
7652 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7653 "(%d):0354 Mbox cmd issue - Enqueue Data: "
7654 "x%x (x%x/x%x) x%x x%x x%x\n",
7655 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
7656 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
7657 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7658 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7659 phba->pport->port_state,
7660 psli->sli_flag, MBX_NOWAIT);
7661 /* Wake up worker thread to transport mailbox command from head */
7662 lpfc_worker_wake_up(phba);
7667 return MBX_NOT_FINISHED;
7671 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
7672 * @phba: Pointer to HBA context object.
7674 * This function is called by worker thread to send a mailbox command to
7675 * SLI4 HBA firmware.
7679 lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
7681 struct lpfc_sli *psli = &phba->sli;
7682 LPFC_MBOXQ_t *mboxq;
7683 int rc = MBX_SUCCESS;
7684 unsigned long iflags;
7685 struct lpfc_mqe *mqe;
7688 /* Check interrupt mode before post async mailbox command */
7689 if (unlikely(!phba->sli4_hba.intr_enable))
7690 return MBX_NOT_FINISHED;
7692 /* Check for mailbox command service token */
7693 spin_lock_irqsave(&phba->hbalock, iflags);
7694 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7695 spin_unlock_irqrestore(&phba->hbalock, iflags);
7696 return MBX_NOT_FINISHED;
7698 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7699 spin_unlock_irqrestore(&phba->hbalock, iflags);
7700 return MBX_NOT_FINISHED;
7702 if (unlikely(phba->sli.mbox_active)) {
7703 spin_unlock_irqrestore(&phba->hbalock, iflags);
7704 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7705 "0384 There is pending active mailbox cmd\n");
7706 return MBX_NOT_FINISHED;
7708 /* Take the mailbox command service token */
7709 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7711 /* Get the next mailbox command from head of queue */
7712 mboxq = lpfc_mbox_get(phba);
7714 /* If no more mailbox command waiting for post, we're done */
7716 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7717 spin_unlock_irqrestore(&phba->hbalock, iflags);
7720 phba->sli.mbox_active = mboxq;
7721 spin_unlock_irqrestore(&phba->hbalock, iflags);
7723 /* Check device readiness for posting mailbox command */
7724 rc = lpfc_mbox_dev_check(phba);
7726 /* Driver clean routine will clean up pending mailbox */
7727 goto out_not_finished;
7729 /* Prepare the mbox command to be posted */
7730 mqe = &mboxq->u.mqe;
7731 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
7733 /* Start timer for the mbox_tmo and log some mailbox post messages */
7734 mod_timer(&psli->mbox_tmo, (jiffies +
7735 msecs_to_jiffies(1000 * lpfc_mbox_tmo_val(phba, mboxq))));
7737 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7738 "(%d):0355 Mailbox cmd x%x (x%x/x%x) issue Data: "
7740 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
7741 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7742 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7743 phba->pport->port_state, psli->sli_flag);
7745 if (mbx_cmnd != MBX_HEARTBEAT) {
7747 lpfc_debugfs_disc_trc(mboxq->vport,
7748 LPFC_DISC_TRC_MBOX_VPORT,
7749 "MBOX Send vport: cmd:x%x mb:x%x x%x",
7750 mbx_cmnd, mqe->un.mb_words[0],
7751 mqe->un.mb_words[1]);
7753 lpfc_debugfs_disc_trc(phba->pport,
7755 "MBOX Send: cmd:x%x mb:x%x x%x",
7756 mbx_cmnd, mqe->un.mb_words[0],
7757 mqe->un.mb_words[1]);
7760 psli->slistat.mbox_cmd++;
7762 /* Post the mailbox command to the port */
7763 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
7764 if (rc != MBX_SUCCESS) {
7765 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7766 "(%d):2533 Mailbox command x%x (x%x/x%x) "
7767 "cannot issue Data: x%x x%x\n",
7768 mboxq->vport ? mboxq->vport->vpi : 0,
7769 mboxq->u.mb.mbxCommand,
7770 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7771 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7772 psli->sli_flag, MBX_NOWAIT);
7773 goto out_not_finished;
7779 spin_lock_irqsave(&phba->hbalock, iflags);
7780 if (phba->sli.mbox_active) {
7781 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
7782 __lpfc_mbox_cmpl_put(phba, mboxq);
7783 /* Release the token */
7784 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7785 phba->sli.mbox_active = NULL;
7787 spin_unlock_irqrestore(&phba->hbalock, iflags);
7789 return MBX_NOT_FINISHED;
7793 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
7794 * @phba: Pointer to HBA context object.
7795 * @pmbox: Pointer to mailbox object.
7796 * @flag: Flag indicating how the mailbox need to be processed.
7798 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
7799 * the API jump table function pointer from the lpfc_hba struct.
7801 * Return codes the caller owns the mailbox command after the return of the
7805 lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
7807 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
7811 * lpfc_mbox_api_table_setup - Set up mbox api function jump table
7812 * @phba: The hba struct for which this call is being executed.
7813 * @dev_grp: The HBA PCI-Device group number.
7815 * This routine sets up the mbox interface API function jump table in @phba
7817 * Returns: 0 - success, -ENODEV - failure.
7820 lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
7824 case LPFC_PCI_DEV_LP:
7825 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
7826 phba->lpfc_sli_handle_slow_ring_event =
7827 lpfc_sli_handle_slow_ring_event_s3;
7828 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
7829 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
7830 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
7832 case LPFC_PCI_DEV_OC:
7833 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
7834 phba->lpfc_sli_handle_slow_ring_event =
7835 lpfc_sli_handle_slow_ring_event_s4;
7836 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
7837 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
7838 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
7841 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7842 "1420 Invalid HBA PCI-device group: 0x%x\n",
7851 * __lpfc_sli_ringtx_put - Add an iocb to the txq
7852 * @phba: Pointer to HBA context object.
7853 * @pring: Pointer to driver SLI ring object.
7854 * @piocb: Pointer to address of newly added command iocb.
7856 * This function is called with hbalock held to add a command
7857 * iocb to the txq when SLI layer cannot submit the command iocb
7861 __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7862 struct lpfc_iocbq *piocb)
7864 /* Insert the caller's iocb in the txq tail for later processing. */
7865 list_add_tail(&piocb->list, &pring->txq);
7869 * lpfc_sli_next_iocb - Get the next iocb in the txq
7870 * @phba: Pointer to HBA context object.
7871 * @pring: Pointer to driver SLI ring object.
7872 * @piocb: Pointer to address of newly added command iocb.
7874 * This function is called with hbalock held before a new
7875 * iocb is submitted to the firmware. This function checks
7876 * txq to flush the iocbs in txq to Firmware before
7877 * submitting new iocbs to the Firmware.
7878 * If there are iocbs in the txq which need to be submitted
7879 * to firmware, lpfc_sli_next_iocb returns the first element
7880 * of the txq after dequeuing it from txq.
7881 * If there is no iocb in the txq then the function will return
7882 * *piocb and *piocb is set to NULL. Caller needs to check
7883 * *piocb to find if there are more commands in the txq.
7885 static struct lpfc_iocbq *
7886 lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7887 struct lpfc_iocbq **piocb)
7889 struct lpfc_iocbq * nextiocb;
7891 nextiocb = lpfc_sli_ringtx_get(phba, pring);
7901 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
7902 * @phba: Pointer to HBA context object.
7903 * @ring_number: SLI ring number to issue iocb on.
7904 * @piocb: Pointer to command iocb.
7905 * @flag: Flag indicating if this command can be put into txq.
7907 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
7908 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
7909 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
7910 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
7911 * this function allows only iocbs for posting buffers. This function finds
7912 * next available slot in the command ring and posts the command to the
7913 * available slot and writes the port attention register to request HBA start
7914 * processing new iocb. If there is no slot available in the ring and
7915 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
7916 * the function returns IOCB_BUSY.
7918 * This function is called with hbalock held. The function will return success
7919 * after it successfully submit the iocb to firmware or after adding to the
7923 __lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
7924 struct lpfc_iocbq *piocb, uint32_t flag)
7926 struct lpfc_iocbq *nextiocb;
7928 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
7930 if (piocb->iocb_cmpl && (!piocb->vport) &&
7931 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
7932 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
7933 lpfc_printf_log(phba, KERN_ERR,
7934 LOG_SLI | LOG_VPORT,
7935 "1807 IOCB x%x failed. No vport\n",
7936 piocb->iocb.ulpCommand);
7942 /* If the PCI channel is in offline state, do not post iocbs. */
7943 if (unlikely(pci_channel_offline(phba->pcidev)))
7946 /* If HBA has a deferred error attention, fail the iocb. */
7947 if (unlikely(phba->hba_flag & DEFER_ERATT))
7951 * We should never get an IOCB if we are in a < LINK_DOWN state
7953 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
7957 * Check to see if we are blocking IOCB processing because of a
7958 * outstanding event.
7960 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
7963 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
7965 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
7966 * can be issued if the link is not up.
7968 switch (piocb->iocb.ulpCommand) {
7969 case CMD_GEN_REQUEST64_CR:
7970 case CMD_GEN_REQUEST64_CX:
7971 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
7972 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
7973 FC_RCTL_DD_UNSOL_CMD) ||
7974 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
7975 MENLO_TRANSPORT_TYPE))
7979 case CMD_QUE_RING_BUF_CN:
7980 case CMD_QUE_RING_BUF64_CN:
7982 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
7983 * completion, iocb_cmpl MUST be 0.
7985 if (piocb->iocb_cmpl)
7986 piocb->iocb_cmpl = NULL;
7988 case CMD_CREATE_XRI_CR:
7989 case CMD_CLOSE_XRI_CN:
7990 case CMD_CLOSE_XRI_CX:
7997 * For FCP commands, we must be in a state where we can process link
8000 } else if (unlikely(pring->ringno == phba->sli.fcp_ring &&
8001 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
8005 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
8006 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
8007 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
8010 lpfc_sli_update_ring(phba, pring);
8012 lpfc_sli_update_full_ring(phba, pring);
8015 return IOCB_SUCCESS;
8020 pring->stats.iocb_cmd_delay++;
8024 if (!(flag & SLI_IOCB_RET_IOCB)) {
8025 __lpfc_sli_ringtx_put(phba, pring, piocb);
8026 return IOCB_SUCCESS;
8033 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
8034 * @phba: Pointer to HBA context object.
8035 * @piocb: Pointer to command iocb.
8036 * @sglq: Pointer to the scatter gather queue object.
8038 * This routine converts the bpl or bde that is in the IOCB
8039 * to a sgl list for the sli4 hardware. The physical address
8040 * of the bpl/bde is converted back to a virtual address.
8041 * If the IOCB contains a BPL then the list of BDE's is
8042 * converted to sli4_sge's. If the IOCB contains a single
8043 * BDE then it is converted to a single sli_sge.
8044 * The IOCB is still in cpu endianess so the contents of
8045 * the bpl can be used without byte swapping.
8047 * Returns valid XRI = Success, NO_XRI = Failure.
8050 lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
8051 struct lpfc_sglq *sglq)
8053 uint16_t xritag = NO_XRI;
8054 struct ulp_bde64 *bpl = NULL;
8055 struct ulp_bde64 bde;
8056 struct sli4_sge *sgl = NULL;
8057 struct lpfc_dmabuf *dmabuf;
8061 uint32_t offset = 0; /* accumulated offset in the sg request list */
8062 int inbound = 0; /* number of sg reply entries inbound from firmware */
8064 if (!piocbq || !sglq)
8067 sgl = (struct sli4_sge *)sglq->sgl;
8068 icmd = &piocbq->iocb;
8069 if (icmd->ulpCommand == CMD_XMIT_BLS_RSP64_CX)
8070 return sglq->sli4_xritag;
8071 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
8072 numBdes = icmd->un.genreq64.bdl.bdeSize /
8073 sizeof(struct ulp_bde64);
8074 /* The addrHigh and addrLow fields within the IOCB
8075 * have not been byteswapped yet so there is no
8076 * need to swap them back.
8078 if (piocbq->context3)
8079 dmabuf = (struct lpfc_dmabuf *)piocbq->context3;
8083 bpl = (struct ulp_bde64 *)dmabuf->virt;
8087 for (i = 0; i < numBdes; i++) {
8088 /* Should already be byte swapped. */
8089 sgl->addr_hi = bpl->addrHigh;
8090 sgl->addr_lo = bpl->addrLow;
8092 sgl->word2 = le32_to_cpu(sgl->word2);
8093 if ((i+1) == numBdes)
8094 bf_set(lpfc_sli4_sge_last, sgl, 1);
8096 bf_set(lpfc_sli4_sge_last, sgl, 0);
8097 /* swap the size field back to the cpu so we
8098 * can assign it to the sgl.
8100 bde.tus.w = le32_to_cpu(bpl->tus.w);
8101 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
8102 /* The offsets in the sgl need to be accumulated
8103 * separately for the request and reply lists.
8104 * The request is always first, the reply follows.
8106 if (piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) {
8107 /* add up the reply sg entries */
8108 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
8110 /* first inbound? reset the offset */
8113 bf_set(lpfc_sli4_sge_offset, sgl, offset);
8114 bf_set(lpfc_sli4_sge_type, sgl,
8115 LPFC_SGE_TYPE_DATA);
8116 offset += bde.tus.f.bdeSize;
8118 sgl->word2 = cpu_to_le32(sgl->word2);
8122 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
8123 /* The addrHigh and addrLow fields of the BDE have not
8124 * been byteswapped yet so they need to be swapped
8125 * before putting them in the sgl.
8128 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
8130 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
8131 sgl->word2 = le32_to_cpu(sgl->word2);
8132 bf_set(lpfc_sli4_sge_last, sgl, 1);
8133 sgl->word2 = cpu_to_le32(sgl->word2);
8135 cpu_to_le32(icmd->un.genreq64.bdl.bdeSize);
8137 return sglq->sli4_xritag;
8141 * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution
8142 * @phba: Pointer to HBA context object.
8144 * This routine performs a roundrobin SCSI command to SLI4 FCP WQ index
8145 * distribution. This is called by __lpfc_sli_issue_iocb_s4() with the hbalock
8148 * Return: index into SLI4 fast-path FCP queue index.
8151 lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba)
8153 struct lpfc_vector_map_info *cpup;
8156 if (phba->cfg_fcp_io_sched == LPFC_FCP_SCHED_BY_CPU
8157 && phba->cfg_fcp_io_channel > 1) {
8158 cpu = smp_processor_id();
8159 if (cpu < phba->sli4_hba.num_present_cpu) {
8160 cpup = phba->sli4_hba.cpu_map;
8162 return cpup->channel_id;
8165 chann = atomic_add_return(1, &phba->fcp_qidx);
8166 chann = (chann % phba->cfg_fcp_io_channel);
8171 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
8172 * @phba: Pointer to HBA context object.
8173 * @piocb: Pointer to command iocb.
8174 * @wqe: Pointer to the work queue entry.
8176 * This routine converts the iocb command to its Work Queue Entry
8177 * equivalent. The wqe pointer should not have any fields set when
8178 * this routine is called because it will memcpy over them.
8179 * This routine does not set the CQ_ID or the WQEC bits in the
8182 * Returns: 0 = Success, IOCB_ERROR = Failure.
8185 lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
8186 union lpfc_wqe *wqe)
8188 uint32_t xmit_len = 0, total_len = 0;
8192 uint8_t command_type = ELS_COMMAND_NON_FIP;
8195 uint16_t abrt_iotag;
8196 struct lpfc_iocbq *abrtiocbq;
8197 struct ulp_bde64 *bpl = NULL;
8198 uint32_t els_id = LPFC_ELS_ID_DEFAULT;
8200 struct ulp_bde64 bde;
8201 struct lpfc_nodelist *ndlp;
8205 fip = phba->hba_flag & HBA_FIP_SUPPORT;
8206 /* The fcp commands will set command type */
8207 if (iocbq->iocb_flag & LPFC_IO_FCP)
8208 command_type = FCP_COMMAND;
8209 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
8210 command_type = ELS_COMMAND_FIP;
8212 command_type = ELS_COMMAND_NON_FIP;
8214 /* Some of the fields are in the right position already */
8215 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
8216 abort_tag = (uint32_t) iocbq->iotag;
8217 xritag = iocbq->sli4_xritag;
8218 wqe->generic.wqe_com.word7 = 0; /* The ct field has moved so reset */
8219 wqe->generic.wqe_com.word10 = 0;
8220 /* words0-2 bpl convert bde */
8221 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
8222 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
8223 sizeof(struct ulp_bde64);
8224 bpl = (struct ulp_bde64 *)
8225 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
8229 /* Should already be byte swapped. */
8230 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
8231 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
8232 /* swap the size field back to the cpu so we
8233 * can assign it to the sgl.
8235 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
8236 xmit_len = wqe->generic.bde.tus.f.bdeSize;
8238 for (i = 0; i < numBdes; i++) {
8239 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
8240 total_len += bde.tus.f.bdeSize;
8243 xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
8245 iocbq->iocb.ulpIoTag = iocbq->iotag;
8246 cmnd = iocbq->iocb.ulpCommand;
8248 switch (iocbq->iocb.ulpCommand) {
8249 case CMD_ELS_REQUEST64_CR:
8250 if (iocbq->iocb_flag & LPFC_IO_LIBDFC)
8251 ndlp = iocbq->context_un.ndlp;
8253 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8254 if (!iocbq->iocb.ulpLe) {
8255 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8256 "2007 Only Limited Edition cmd Format"
8257 " supported 0x%x\n",
8258 iocbq->iocb.ulpCommand);
8262 wqe->els_req.payload_len = xmit_len;
8263 /* Els_reguest64 has a TMO */
8264 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
8265 iocbq->iocb.ulpTimeout);
8266 /* Need a VF for word 4 set the vf bit*/
8267 bf_set(els_req64_vf, &wqe->els_req, 0);
8268 /* And a VFID for word 12 */
8269 bf_set(els_req64_vfid, &wqe->els_req, 0);
8270 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
8271 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8272 iocbq->iocb.ulpContext);
8273 bf_set(wqe_ct, &wqe->els_req.wqe_com, ct);
8274 bf_set(wqe_pu, &wqe->els_req.wqe_com, 0);
8275 /* CCP CCPE PV PRI in word10 were set in the memcpy */
8276 if (command_type == ELS_COMMAND_FIP)
8277 els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
8278 >> LPFC_FIP_ELS_ID_SHIFT);
8279 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
8280 iocbq->context2)->virt);
8281 if_type = bf_get(lpfc_sli_intf_if_type,
8282 &phba->sli4_hba.sli_intf);
8283 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8284 if (pcmd && (*pcmd == ELS_CMD_FLOGI ||
8285 *pcmd == ELS_CMD_SCR ||
8286 *pcmd == ELS_CMD_FDISC ||
8287 *pcmd == ELS_CMD_LOGO ||
8288 *pcmd == ELS_CMD_PLOGI)) {
8289 bf_set(els_req64_sp, &wqe->els_req, 1);
8290 bf_set(els_req64_sid, &wqe->els_req,
8291 iocbq->vport->fc_myDID);
8292 if ((*pcmd == ELS_CMD_FLOGI) &&
8293 !(phba->fc_topology ==
8294 LPFC_TOPOLOGY_LOOP))
8295 bf_set(els_req64_sid, &wqe->els_req, 0);
8296 bf_set(wqe_ct, &wqe->els_req.wqe_com, 1);
8297 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8298 phba->vpi_ids[iocbq->vport->vpi]);
8299 } else if (pcmd && iocbq->context1) {
8300 bf_set(wqe_ct, &wqe->els_req.wqe_com, 0);
8301 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8302 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8305 bf_set(wqe_temp_rpi, &wqe->els_req.wqe_com,
8306 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8307 bf_set(wqe_els_id, &wqe->els_req.wqe_com, els_id);
8308 bf_set(wqe_dbde, &wqe->els_req.wqe_com, 1);
8309 bf_set(wqe_iod, &wqe->els_req.wqe_com, LPFC_WQE_IOD_READ);
8310 bf_set(wqe_qosd, &wqe->els_req.wqe_com, 1);
8311 bf_set(wqe_lenloc, &wqe->els_req.wqe_com, LPFC_WQE_LENLOC_NONE);
8312 bf_set(wqe_ebde_cnt, &wqe->els_req.wqe_com, 0);
8313 wqe->els_req.max_response_payload_len = total_len - xmit_len;
8315 case CMD_XMIT_SEQUENCE64_CX:
8316 bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com,
8317 iocbq->iocb.un.ulpWord[3]);
8318 bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com,
8319 iocbq->iocb.unsli3.rcvsli3.ox_id);
8320 /* The entire sequence is transmitted for this IOCB */
8321 xmit_len = total_len;
8322 cmnd = CMD_XMIT_SEQUENCE64_CR;
8323 if (phba->link_flag & LS_LOOPBACK_MODE)
8324 bf_set(wqe_xo, &wqe->xmit_sequence.wge_ctl, 1);
8325 case CMD_XMIT_SEQUENCE64_CR:
8326 /* word3 iocb=io_tag32 wqe=reserved */
8327 wqe->xmit_sequence.rsvd3 = 0;
8328 /* word4 relative_offset memcpy */
8329 /* word5 r_ctl/df_ctl memcpy */
8330 bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0);
8331 bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1);
8332 bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com,
8333 LPFC_WQE_IOD_WRITE);
8334 bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com,
8335 LPFC_WQE_LENLOC_WORD12);
8336 bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0);
8337 wqe->xmit_sequence.xmit_len = xmit_len;
8338 command_type = OTHER_COMMAND;
8340 case CMD_XMIT_BCAST64_CN:
8341 /* word3 iocb=iotag32 wqe=seq_payload_len */
8342 wqe->xmit_bcast64.seq_payload_len = xmit_len;
8343 /* word4 iocb=rsvd wqe=rsvd */
8344 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
8345 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
8346 bf_set(wqe_ct, &wqe->xmit_bcast64.wqe_com,
8347 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8348 bf_set(wqe_dbde, &wqe->xmit_bcast64.wqe_com, 1);
8349 bf_set(wqe_iod, &wqe->xmit_bcast64.wqe_com, LPFC_WQE_IOD_WRITE);
8350 bf_set(wqe_lenloc, &wqe->xmit_bcast64.wqe_com,
8351 LPFC_WQE_LENLOC_WORD3);
8352 bf_set(wqe_ebde_cnt, &wqe->xmit_bcast64.wqe_com, 0);
8354 case CMD_FCP_IWRITE64_CR:
8355 command_type = FCP_COMMAND_DATA_OUT;
8356 /* word3 iocb=iotag wqe=payload_offset_len */
8357 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8358 bf_set(payload_offset_len, &wqe->fcp_iwrite,
8359 xmit_len + sizeof(struct fcp_rsp));
8360 bf_set(cmd_buff_len, &wqe->fcp_iwrite,
8362 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8363 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8364 bf_set(wqe_erp, &wqe->fcp_iwrite.wqe_com,
8365 iocbq->iocb.ulpFCP2Rcvy);
8366 bf_set(wqe_lnk, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpXS);
8367 /* Always open the exchange */
8368 bf_set(wqe_xc, &wqe->fcp_iwrite.wqe_com, 0);
8369 bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE);
8370 bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com,
8371 LPFC_WQE_LENLOC_WORD4);
8372 bf_set(wqe_ebde_cnt, &wqe->fcp_iwrite.wqe_com, 0);
8373 bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpPU);
8374 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 1);
8375 if (iocbq->iocb_flag & LPFC_IO_OAS) {
8376 bf_set(wqe_oas, &wqe->fcp_iwrite.wqe_com, 1);
8377 if (phba->cfg_XLanePriority) {
8378 bf_set(wqe_ccpe, &wqe->fcp_iwrite.wqe_com, 1);
8379 bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
8380 (phba->cfg_XLanePriority << 1));
8384 case CMD_FCP_IREAD64_CR:
8385 /* word3 iocb=iotag wqe=payload_offset_len */
8386 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8387 bf_set(payload_offset_len, &wqe->fcp_iread,
8388 xmit_len + sizeof(struct fcp_rsp));
8389 bf_set(cmd_buff_len, &wqe->fcp_iread,
8391 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8392 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8393 bf_set(wqe_erp, &wqe->fcp_iread.wqe_com,
8394 iocbq->iocb.ulpFCP2Rcvy);
8395 bf_set(wqe_lnk, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpXS);
8396 /* Always open the exchange */
8397 bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
8398 bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ);
8399 bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com,
8400 LPFC_WQE_LENLOC_WORD4);
8401 bf_set(wqe_ebde_cnt, &wqe->fcp_iread.wqe_com, 0);
8402 bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpPU);
8403 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 1);
8404 if (iocbq->iocb_flag & LPFC_IO_OAS) {
8405 bf_set(wqe_oas, &wqe->fcp_iread.wqe_com, 1);
8406 if (phba->cfg_XLanePriority) {
8407 bf_set(wqe_ccpe, &wqe->fcp_iread.wqe_com, 1);
8408 bf_set(wqe_ccp, &wqe->fcp_iread.wqe_com,
8409 (phba->cfg_XLanePriority << 1));
8413 case CMD_FCP_ICMND64_CR:
8414 /* word3 iocb=iotag wqe=payload_offset_len */
8415 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8416 bf_set(payload_offset_len, &wqe->fcp_icmd,
8417 xmit_len + sizeof(struct fcp_rsp));
8418 bf_set(cmd_buff_len, &wqe->fcp_icmd,
8420 /* word3 iocb=IO_TAG wqe=reserved */
8421 bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0);
8422 /* Always open the exchange */
8423 bf_set(wqe_xc, &wqe->fcp_icmd.wqe_com, 0);
8424 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 1);
8425 bf_set(wqe_iod, &wqe->fcp_icmd.wqe_com, LPFC_WQE_IOD_WRITE);
8426 bf_set(wqe_qosd, &wqe->fcp_icmd.wqe_com, 1);
8427 bf_set(wqe_lenloc, &wqe->fcp_icmd.wqe_com,
8428 LPFC_WQE_LENLOC_NONE);
8429 bf_set(wqe_ebde_cnt, &wqe->fcp_icmd.wqe_com, 0);
8430 bf_set(wqe_erp, &wqe->fcp_icmd.wqe_com,
8431 iocbq->iocb.ulpFCP2Rcvy);
8432 if (iocbq->iocb_flag & LPFC_IO_OAS) {
8433 bf_set(wqe_oas, &wqe->fcp_icmd.wqe_com, 1);
8434 if (phba->cfg_XLanePriority) {
8435 bf_set(wqe_ccpe, &wqe->fcp_icmd.wqe_com, 1);
8436 bf_set(wqe_ccp, &wqe->fcp_icmd.wqe_com,
8437 (phba->cfg_XLanePriority << 1));
8441 case CMD_GEN_REQUEST64_CR:
8442 /* For this command calculate the xmit length of the
8446 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
8447 sizeof(struct ulp_bde64);
8448 for (i = 0; i < numBdes; i++) {
8449 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
8450 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
8452 xmit_len += bde.tus.f.bdeSize;
8454 /* word3 iocb=IO_TAG wqe=request_payload_len */
8455 wqe->gen_req.request_payload_len = xmit_len;
8456 /* word4 iocb=parameter wqe=relative_offset memcpy */
8457 /* word5 [rctl, type, df_ctl, la] copied in memcpy */
8458 /* word6 context tag copied in memcpy */
8459 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
8460 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
8461 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8462 "2015 Invalid CT %x command 0x%x\n",
8463 ct, iocbq->iocb.ulpCommand);
8466 bf_set(wqe_ct, &wqe->gen_req.wqe_com, 0);
8467 bf_set(wqe_tmo, &wqe->gen_req.wqe_com, iocbq->iocb.ulpTimeout);
8468 bf_set(wqe_pu, &wqe->gen_req.wqe_com, iocbq->iocb.ulpPU);
8469 bf_set(wqe_dbde, &wqe->gen_req.wqe_com, 1);
8470 bf_set(wqe_iod, &wqe->gen_req.wqe_com, LPFC_WQE_IOD_READ);
8471 bf_set(wqe_qosd, &wqe->gen_req.wqe_com, 1);
8472 bf_set(wqe_lenloc, &wqe->gen_req.wqe_com, LPFC_WQE_LENLOC_NONE);
8473 bf_set(wqe_ebde_cnt, &wqe->gen_req.wqe_com, 0);
8474 wqe->gen_req.max_response_payload_len = total_len - xmit_len;
8475 command_type = OTHER_COMMAND;
8477 case CMD_XMIT_ELS_RSP64_CX:
8478 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8479 /* words0-2 BDE memcpy */
8480 /* word3 iocb=iotag32 wqe=response_payload_len */
8481 wqe->xmit_els_rsp.response_payload_len = xmit_len;
8483 wqe->xmit_els_rsp.word4 = 0;
8484 /* word5 iocb=rsvd wge=did */
8485 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
8486 iocbq->iocb.un.xseq64.xmit_els_remoteID);
8488 if_type = bf_get(lpfc_sli_intf_if_type,
8489 &phba->sli4_hba.sli_intf);
8490 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8491 if (iocbq->vport->fc_flag & FC_PT2PT) {
8492 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
8493 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
8494 iocbq->vport->fc_myDID);
8495 if (iocbq->vport->fc_myDID == Fabric_DID) {
8497 &wqe->xmit_els_rsp.wqe_dest, 0);
8501 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com,
8502 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8503 bf_set(wqe_pu, &wqe->xmit_els_rsp.wqe_com, iocbq->iocb.ulpPU);
8504 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
8505 iocbq->iocb.unsli3.rcvsli3.ox_id);
8506 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
8507 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
8508 phba->vpi_ids[iocbq->vport->vpi]);
8509 bf_set(wqe_dbde, &wqe->xmit_els_rsp.wqe_com, 1);
8510 bf_set(wqe_iod, &wqe->xmit_els_rsp.wqe_com, LPFC_WQE_IOD_WRITE);
8511 bf_set(wqe_qosd, &wqe->xmit_els_rsp.wqe_com, 1);
8512 bf_set(wqe_lenloc, &wqe->xmit_els_rsp.wqe_com,
8513 LPFC_WQE_LENLOC_WORD3);
8514 bf_set(wqe_ebde_cnt, &wqe->xmit_els_rsp.wqe_com, 0);
8515 bf_set(wqe_rsp_temp_rpi, &wqe->xmit_els_rsp,
8516 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8517 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
8518 iocbq->context2)->virt);
8519 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
8520 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
8521 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
8522 iocbq->vport->fc_myDID);
8523 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com, 1);
8524 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
8525 phba->vpi_ids[phba->pport->vpi]);
8527 command_type = OTHER_COMMAND;
8529 case CMD_CLOSE_XRI_CN:
8530 case CMD_ABORT_XRI_CN:
8531 case CMD_ABORT_XRI_CX:
8532 /* words 0-2 memcpy should be 0 rserved */
8533 /* port will send abts */
8534 abrt_iotag = iocbq->iocb.un.acxri.abortContextTag;
8535 if (abrt_iotag != 0 && abrt_iotag <= phba->sli.last_iotag) {
8536 abrtiocbq = phba->sli.iocbq_lookup[abrt_iotag];
8537 fip = abrtiocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK;
8541 if ((iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN) || fip)
8543 * The link is down, or the command was ELS_FIP
8544 * so the fw does not need to send abts
8547 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
8549 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
8550 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
8551 /* word5 iocb=CONTEXT_TAG|IO_TAG wqe=reserved */
8552 wqe->abort_cmd.rsrvd5 = 0;
8553 bf_set(wqe_ct, &wqe->abort_cmd.wqe_com,
8554 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8555 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
8557 * The abort handler will send us CMD_ABORT_XRI_CN or
8558 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
8560 bf_set(wqe_cmnd, &wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
8561 bf_set(wqe_qosd, &wqe->abort_cmd.wqe_com, 1);
8562 bf_set(wqe_lenloc, &wqe->abort_cmd.wqe_com,
8563 LPFC_WQE_LENLOC_NONE);
8564 cmnd = CMD_ABORT_XRI_CX;
8565 command_type = OTHER_COMMAND;
8568 case CMD_XMIT_BLS_RSP64_CX:
8569 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8570 /* As BLS ABTS RSP WQE is very different from other WQEs,
8571 * we re-construct this WQE here based on information in
8572 * iocbq from scratch.
8574 memset(wqe, 0, sizeof(union lpfc_wqe));
8575 /* OX_ID is invariable to who sent ABTS to CT exchange */
8576 bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
8577 bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_rsp));
8578 if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_rsp) ==
8579 LPFC_ABTS_UNSOL_INT) {
8580 /* ABTS sent by initiator to CT exchange, the
8581 * RX_ID field will be filled with the newly
8582 * allocated responder XRI.
8584 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
8585 iocbq->sli4_xritag);
8587 /* ABTS sent by responder to CT exchange, the
8588 * RX_ID field will be filled with the responder
8591 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
8592 bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_rsp));
8594 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
8595 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
8598 bf_set(wqe_els_did, &wqe->xmit_bls_rsp.wqe_dest,
8600 bf_set(xmit_bls_rsp64_temprpi, &wqe->xmit_bls_rsp,
8601 iocbq->iocb.ulpContext);
8602 bf_set(wqe_ct, &wqe->xmit_bls_rsp.wqe_com, 1);
8603 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
8604 phba->vpi_ids[phba->pport->vpi]);
8605 bf_set(wqe_qosd, &wqe->xmit_bls_rsp.wqe_com, 1);
8606 bf_set(wqe_lenloc, &wqe->xmit_bls_rsp.wqe_com,
8607 LPFC_WQE_LENLOC_NONE);
8608 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
8609 command_type = OTHER_COMMAND;
8610 if (iocbq->iocb.un.xseq64.w5.hcsw.Rctl == FC_RCTL_BA_RJT) {
8611 bf_set(xmit_bls_rsp64_rjt_vspec, &wqe->xmit_bls_rsp,
8612 bf_get(lpfc_vndr_code, &iocbq->iocb.un.bls_rsp));
8613 bf_set(xmit_bls_rsp64_rjt_expc, &wqe->xmit_bls_rsp,
8614 bf_get(lpfc_rsn_expln, &iocbq->iocb.un.bls_rsp));
8615 bf_set(xmit_bls_rsp64_rjt_rsnc, &wqe->xmit_bls_rsp,
8616 bf_get(lpfc_rsn_code, &iocbq->iocb.un.bls_rsp));
8620 case CMD_XRI_ABORTED_CX:
8621 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
8622 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
8623 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
8624 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
8625 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
8627 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8628 "2014 Invalid command 0x%x\n",
8629 iocbq->iocb.ulpCommand);
8634 if (iocbq->iocb_flag & LPFC_IO_DIF_PASS)
8635 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_PASSTHRU);
8636 else if (iocbq->iocb_flag & LPFC_IO_DIF_STRIP)
8637 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_STRIP);
8638 else if (iocbq->iocb_flag & LPFC_IO_DIF_INSERT)
8639 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_INSERT);
8640 iocbq->iocb_flag &= ~(LPFC_IO_DIF_PASS | LPFC_IO_DIF_STRIP |
8641 LPFC_IO_DIF_INSERT);
8642 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
8643 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
8644 wqe->generic.wqe_com.abort_tag = abort_tag;
8645 bf_set(wqe_cmd_type, &wqe->generic.wqe_com, command_type);
8646 bf_set(wqe_cmnd, &wqe->generic.wqe_com, cmnd);
8647 bf_set(wqe_class, &wqe->generic.wqe_com, iocbq->iocb.ulpClass);
8648 bf_set(wqe_cqid, &wqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
8653 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
8654 * @phba: Pointer to HBA context object.
8655 * @ring_number: SLI ring number to issue iocb on.
8656 * @piocb: Pointer to command iocb.
8657 * @flag: Flag indicating if this command can be put into txq.
8659 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
8660 * an iocb command to an HBA with SLI-4 interface spec.
8662 * This function is called with hbalock held. The function will return success
8663 * after it successfully submit the iocb to firmware or after adding to the
8667 __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
8668 struct lpfc_iocbq *piocb, uint32_t flag)
8670 struct lpfc_sglq *sglq;
8672 struct lpfc_queue *wq;
8673 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
8675 if (piocb->sli4_xritag == NO_XRI) {
8676 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
8677 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
8680 if (!list_empty(&pring->txq)) {
8681 if (!(flag & SLI_IOCB_RET_IOCB)) {
8682 __lpfc_sli_ringtx_put(phba,
8684 return IOCB_SUCCESS;
8689 sglq = __lpfc_sli_get_sglq(phba, piocb);
8691 if (!(flag & SLI_IOCB_RET_IOCB)) {
8692 __lpfc_sli_ringtx_put(phba,
8695 return IOCB_SUCCESS;
8701 } else if (piocb->iocb_flag & LPFC_IO_FCP) {
8702 /* These IO's already have an XRI and a mapped sgl. */
8706 * This is a continuation of a commandi,(CX) so this
8707 * sglq is on the active list
8709 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_lxritag);
8715 piocb->sli4_lxritag = sglq->sli4_lxritag;
8716 piocb->sli4_xritag = sglq->sli4_xritag;
8717 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocb, sglq))
8721 if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe))
8724 if ((piocb->iocb_flag & LPFC_IO_FCP) ||
8725 (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
8726 if (!phba->cfg_fof || (!(piocb->iocb_flag & LPFC_IO_OAS))) {
8727 wq = phba->sli4_hba.fcp_wq[piocb->fcp_wqidx];
8729 wq = phba->sli4_hba.oas_wq;
8731 if (lpfc_sli4_wq_put(wq, &wqe))
8734 if (unlikely(!phba->sli4_hba.els_wq))
8736 if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
8739 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
8745 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
8747 * This routine wraps the actual lockless version for issusing IOCB function
8748 * pointer from the lpfc_hba struct.
8751 * IOCB_ERROR - Error
8752 * IOCB_SUCCESS - Success
8756 __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
8757 struct lpfc_iocbq *piocb, uint32_t flag)
8759 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
8763 * lpfc_sli_api_table_setup - Set up sli api function jump table
8764 * @phba: The hba struct for which this call is being executed.
8765 * @dev_grp: The HBA PCI-Device group number.
8767 * This routine sets up the SLI interface API function jump table in @phba
8769 * Returns: 0 - success, -ENODEV - failure.
8772 lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
8776 case LPFC_PCI_DEV_LP:
8777 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
8778 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
8780 case LPFC_PCI_DEV_OC:
8781 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
8782 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
8785 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8786 "1419 Invalid HBA PCI-device group: 0x%x\n",
8791 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
8796 lpfc_sli_calc_ring(struct lpfc_hba *phba, uint32_t ring_number,
8797 struct lpfc_iocbq *piocb)
8801 if (phba->sli_rev == LPFC_SLI_REV4) {
8802 if (piocb->iocb_flag & (LPFC_IO_FCP | LPFC_USE_FCPWQIDX)) {
8804 * fcp_wqidx should already be setup based on what
8805 * completion queue we want to use.
8807 if (!(phba->cfg_fof) ||
8808 (!(piocb->iocb_flag & LPFC_IO_FOF))) {
8809 if (unlikely(!phba->sli4_hba.fcp_wq))
8810 return LPFC_HBA_ERROR;
8811 idx = lpfc_sli4_scmd_to_wqidx_distr(phba);
8812 piocb->fcp_wqidx = idx;
8813 ring_number = MAX_SLI3_CONFIGURED_RINGS + idx;
8815 if (unlikely(!phba->sli4_hba.oas_wq))
8816 return LPFC_HBA_ERROR;
8818 piocb->fcp_wqidx = idx;
8819 ring_number = LPFC_FCP_OAS_RING;
8827 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
8828 * @phba: Pointer to HBA context object.
8829 * @pring: Pointer to driver SLI ring object.
8830 * @piocb: Pointer to command iocb.
8831 * @flag: Flag indicating if this command can be put into txq.
8833 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
8834 * function. This function gets the hbalock and calls
8835 * __lpfc_sli_issue_iocb function and will return the error returned
8836 * by __lpfc_sli_issue_iocb function. This wrapper is used by
8837 * functions which do not hold hbalock.
8840 lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
8841 struct lpfc_iocbq *piocb, uint32_t flag)
8843 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
8844 struct lpfc_sli_ring *pring;
8845 struct lpfc_queue *fpeq;
8846 struct lpfc_eqe *eqe;
8847 unsigned long iflags;
8850 if (phba->sli_rev == LPFC_SLI_REV4) {
8851 ring_number = lpfc_sli_calc_ring(phba, ring_number, piocb);
8852 if (unlikely(ring_number == LPFC_HBA_ERROR))
8854 idx = piocb->fcp_wqidx;
8856 pring = &phba->sli.ring[ring_number];
8857 spin_lock_irqsave(&pring->ring_lock, iflags);
8858 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
8859 spin_unlock_irqrestore(&pring->ring_lock, iflags);
8861 if (lpfc_fcp_look_ahead && (piocb->iocb_flag & LPFC_IO_FCP)) {
8862 fcp_eq_hdl = &phba->sli4_hba.fcp_eq_hdl[idx];
8864 if (atomic_dec_and_test(&fcp_eq_hdl->
8867 /* Get associated EQ with this index */
8868 fpeq = phba->sli4_hba.hba_eq[idx];
8870 /* Turn off interrupts from this EQ */
8871 lpfc_sli4_eq_clr_intr(fpeq);
8874 * Process all the events on FCP EQ
8876 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
8877 lpfc_sli4_hba_handle_eqe(phba,
8879 fpeq->EQ_processed++;
8882 /* Always clear and re-arm the EQ */
8883 lpfc_sli4_eq_release(fpeq,
8886 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
8889 /* For now, SLI2/3 will still use hbalock */
8890 spin_lock_irqsave(&phba->hbalock, iflags);
8891 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
8892 spin_unlock_irqrestore(&phba->hbalock, iflags);
8898 * lpfc_extra_ring_setup - Extra ring setup function
8899 * @phba: Pointer to HBA context object.
8901 * This function is called while driver attaches with the
8902 * HBA to setup the extra ring. The extra ring is used
8903 * only when driver needs to support target mode functionality
8904 * or IP over FC functionalities.
8906 * This function is called with no lock held.
8909 lpfc_extra_ring_setup( struct lpfc_hba *phba)
8911 struct lpfc_sli *psli;
8912 struct lpfc_sli_ring *pring;
8916 /* Adjust cmd/rsp ring iocb entries more evenly */
8918 /* Take some away from the FCP ring */
8919 pring = &psli->ring[psli->fcp_ring];
8920 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8921 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8922 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8923 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
8925 /* and give them to the extra ring */
8926 pring = &psli->ring[psli->extra_ring];
8928 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8929 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8930 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8931 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
8933 /* Setup default profile for this ring */
8934 pring->iotag_max = 4096;
8935 pring->num_mask = 1;
8936 pring->prt[0].profile = 0; /* Mask 0 */
8937 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
8938 pring->prt[0].type = phba->cfg_multi_ring_type;
8939 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
8943 /* lpfc_sli_abts_err_handler - handle a failed ABTS request from an SLI3 port.
8944 * @phba: Pointer to HBA context object.
8945 * @iocbq: Pointer to iocb object.
8947 * The async_event handler calls this routine when it receives
8948 * an ASYNC_STATUS_CN event from the port. The port generates
8949 * this event when an Abort Sequence request to an rport fails
8950 * twice in succession. The abort could be originated by the
8951 * driver or by the port. The ABTS could have been for an ELS
8952 * or FCP IO. The port only generates this event when an ABTS
8953 * fails to complete after one retry.
8956 lpfc_sli_abts_err_handler(struct lpfc_hba *phba,
8957 struct lpfc_iocbq *iocbq)
8959 struct lpfc_nodelist *ndlp = NULL;
8960 uint16_t rpi = 0, vpi = 0;
8961 struct lpfc_vport *vport = NULL;
8963 /* The rpi in the ulpContext is vport-sensitive. */
8964 vpi = iocbq->iocb.un.asyncstat.sub_ctxt_tag;
8965 rpi = iocbq->iocb.ulpContext;
8967 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8968 "3092 Port generated ABTS async event "
8969 "on vpi %d rpi %d status 0x%x\n",
8970 vpi, rpi, iocbq->iocb.ulpStatus);
8972 vport = lpfc_find_vport_by_vpid(phba, vpi);
8975 ndlp = lpfc_findnode_rpi(vport, rpi);
8976 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
8979 if (iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT)
8980 lpfc_sli_abts_recover_port(vport, ndlp);
8984 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8985 "3095 Event Context not found, no "
8986 "action on vpi %d rpi %d status 0x%x, reason 0x%x\n",
8987 iocbq->iocb.ulpContext, iocbq->iocb.ulpStatus,
8991 /* lpfc_sli4_abts_err_handler - handle a failed ABTS request from an SLI4 port.
8992 * @phba: pointer to HBA context object.
8993 * @ndlp: nodelist pointer for the impacted rport.
8994 * @axri: pointer to the wcqe containing the failed exchange.
8996 * The driver calls this routine when it receives an ABORT_XRI_FCP CQE from the
8997 * port. The port generates this event when an abort exchange request to an
8998 * rport fails twice in succession with no reply. The abort could be originated
8999 * by the driver or by the port. The ABTS could have been for an ELS or FCP IO.
9002 lpfc_sli4_abts_err_handler(struct lpfc_hba *phba,
9003 struct lpfc_nodelist *ndlp,
9004 struct sli4_wcqe_xri_aborted *axri)
9006 struct lpfc_vport *vport;
9007 uint32_t ext_status = 0;
9009 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
9010 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9011 "3115 Node Context not found, driver "
9012 "ignoring abts err event\n");
9016 vport = ndlp->vport;
9017 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9018 "3116 Port generated FCP XRI ABORT event on "
9019 "vpi %d rpi %d xri x%x status 0x%x parameter x%x\n",
9020 ndlp->vport->vpi, phba->sli4_hba.rpi_ids[ndlp->nlp_rpi],
9021 bf_get(lpfc_wcqe_xa_xri, axri),
9022 bf_get(lpfc_wcqe_xa_status, axri),
9026 * Catch the ABTS protocol failure case. Older OCe FW releases returned
9027 * LOCAL_REJECT and 0 for a failed ABTS exchange and later OCe and
9028 * LPe FW releases returned LOCAL_REJECT and SEQUENCE_TIMEOUT.
9030 ext_status = axri->parameter & IOERR_PARAM_MASK;
9031 if ((bf_get(lpfc_wcqe_xa_status, axri) == IOSTAT_LOCAL_REJECT) &&
9032 ((ext_status == IOERR_SEQUENCE_TIMEOUT) || (ext_status == 0)))
9033 lpfc_sli_abts_recover_port(vport, ndlp);
9037 * lpfc_sli_async_event_handler - ASYNC iocb handler function
9038 * @phba: Pointer to HBA context object.
9039 * @pring: Pointer to driver SLI ring object.
9040 * @iocbq: Pointer to iocb object.
9042 * This function is called by the slow ring event handler
9043 * function when there is an ASYNC event iocb in the ring.
9044 * This function is called with no lock held.
9045 * Currently this function handles only temperature related
9046 * ASYNC events. The function decodes the temperature sensor
9047 * event message and posts events for the management applications.
9050 lpfc_sli_async_event_handler(struct lpfc_hba * phba,
9051 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
9055 struct temp_event temp_event_data;
9056 struct Scsi_Host *shost;
9059 icmd = &iocbq->iocb;
9060 evt_code = icmd->un.asyncstat.evt_code;
9063 case ASYNC_TEMP_WARN:
9064 case ASYNC_TEMP_SAFE:
9065 temp_event_data.data = (uint32_t) icmd->ulpContext;
9066 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
9067 if (evt_code == ASYNC_TEMP_WARN) {
9068 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
9069 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
9070 "0347 Adapter is very hot, please take "
9071 "corrective action. temperature : %d Celsius\n",
9072 (uint32_t) icmd->ulpContext);
9074 temp_event_data.event_code = LPFC_NORMAL_TEMP;
9075 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
9076 "0340 Adapter temperature is OK now. "
9077 "temperature : %d Celsius\n",
9078 (uint32_t) icmd->ulpContext);
9081 /* Send temperature change event to applications */
9082 shost = lpfc_shost_from_vport(phba->pport);
9083 fc_host_post_vendor_event(shost, fc_get_event_number(),
9084 sizeof(temp_event_data), (char *) &temp_event_data,
9087 case ASYNC_STATUS_CN:
9088 lpfc_sli_abts_err_handler(phba, iocbq);
9091 iocb_w = (uint32_t *) icmd;
9092 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9093 "0346 Ring %d handler: unexpected ASYNC_STATUS"
9095 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
9096 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
9097 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
9098 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
9099 pring->ringno, icmd->un.asyncstat.evt_code,
9100 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
9101 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
9102 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
9103 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
9111 * lpfc_sli_setup - SLI ring setup function
9112 * @phba: Pointer to HBA context object.
9114 * lpfc_sli_setup sets up rings of the SLI interface with
9115 * number of iocbs per ring and iotags. This function is
9116 * called while driver attach to the HBA and before the
9117 * interrupts are enabled. So there is no need for locking.
9119 * This function always returns 0.
9122 lpfc_sli_setup(struct lpfc_hba *phba)
9124 int i, totiocbsize = 0;
9125 struct lpfc_sli *psli = &phba->sli;
9126 struct lpfc_sli_ring *pring;
9128 psli->num_rings = MAX_SLI3_CONFIGURED_RINGS;
9129 if (phba->sli_rev == LPFC_SLI_REV4)
9130 psli->num_rings += phba->cfg_fcp_io_channel;
9132 psli->fcp_ring = LPFC_FCP_RING;
9133 psli->next_ring = LPFC_FCP_NEXT_RING;
9134 psli->extra_ring = LPFC_EXTRA_RING;
9136 psli->iocbq_lookup = NULL;
9137 psli->iocbq_lookup_len = 0;
9138 psli->last_iotag = 0;
9140 for (i = 0; i < psli->num_rings; i++) {
9141 pring = &psli->ring[i];
9143 case LPFC_FCP_RING: /* ring 0 - FCP */
9144 /* numCiocb and numRiocb are used in config_port */
9145 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
9146 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
9147 pring->sli.sli3.numCiocb +=
9148 SLI2_IOCB_CMD_R1XTRA_ENTRIES;
9149 pring->sli.sli3.numRiocb +=
9150 SLI2_IOCB_RSP_R1XTRA_ENTRIES;
9151 pring->sli.sli3.numCiocb +=
9152 SLI2_IOCB_CMD_R3XTRA_ENTRIES;
9153 pring->sli.sli3.numRiocb +=
9154 SLI2_IOCB_RSP_R3XTRA_ENTRIES;
9155 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
9156 SLI3_IOCB_CMD_SIZE :
9158 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
9159 SLI3_IOCB_RSP_SIZE :
9161 pring->iotag_ctr = 0;
9163 (phba->cfg_hba_queue_depth * 2);
9164 pring->fast_iotag = pring->iotag_max;
9165 pring->num_mask = 0;
9167 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
9168 /* numCiocb and numRiocb are used in config_port */
9169 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
9170 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
9171 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
9172 SLI3_IOCB_CMD_SIZE :
9174 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
9175 SLI3_IOCB_RSP_SIZE :
9177 pring->iotag_max = phba->cfg_hba_queue_depth;
9178 pring->num_mask = 0;
9180 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
9181 /* numCiocb and numRiocb are used in config_port */
9182 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
9183 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
9184 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
9185 SLI3_IOCB_CMD_SIZE :
9187 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
9188 SLI3_IOCB_RSP_SIZE :
9190 pring->fast_iotag = 0;
9191 pring->iotag_ctr = 0;
9192 pring->iotag_max = 4096;
9193 pring->lpfc_sli_rcv_async_status =
9194 lpfc_sli_async_event_handler;
9195 pring->num_mask = LPFC_MAX_RING_MASK;
9196 pring->prt[0].profile = 0; /* Mask 0 */
9197 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
9198 pring->prt[0].type = FC_TYPE_ELS;
9199 pring->prt[0].lpfc_sli_rcv_unsol_event =
9200 lpfc_els_unsol_event;
9201 pring->prt[1].profile = 0; /* Mask 1 */
9202 pring->prt[1].rctl = FC_RCTL_ELS_REP;
9203 pring->prt[1].type = FC_TYPE_ELS;
9204 pring->prt[1].lpfc_sli_rcv_unsol_event =
9205 lpfc_els_unsol_event;
9206 pring->prt[2].profile = 0; /* Mask 2 */
9207 /* NameServer Inquiry */
9208 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
9210 pring->prt[2].type = FC_TYPE_CT;
9211 pring->prt[2].lpfc_sli_rcv_unsol_event =
9212 lpfc_ct_unsol_event;
9213 pring->prt[3].profile = 0; /* Mask 3 */
9214 /* NameServer response */
9215 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
9217 pring->prt[3].type = FC_TYPE_CT;
9218 pring->prt[3].lpfc_sli_rcv_unsol_event =
9219 lpfc_ct_unsol_event;
9222 totiocbsize += (pring->sli.sli3.numCiocb *
9223 pring->sli.sli3.sizeCiocb) +
9224 (pring->sli.sli3.numRiocb * pring->sli.sli3.sizeRiocb);
9226 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
9227 /* Too many cmd / rsp ring entries in SLI2 SLIM */
9228 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
9229 "SLI2 SLIM Data: x%x x%lx\n",
9230 phba->brd_no, totiocbsize,
9231 (unsigned long) MAX_SLIM_IOCB_SIZE);
9233 if (phba->cfg_multi_ring_support == 2)
9234 lpfc_extra_ring_setup(phba);
9240 * lpfc_sli_queue_setup - Queue initialization function
9241 * @phba: Pointer to HBA context object.
9243 * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each
9244 * ring. This function also initializes ring indices of each ring.
9245 * This function is called during the initialization of the SLI
9246 * interface of an HBA.
9247 * This function is called with no lock held and always returns
9251 lpfc_sli_queue_setup(struct lpfc_hba *phba)
9253 struct lpfc_sli *psli;
9254 struct lpfc_sli_ring *pring;
9258 spin_lock_irq(&phba->hbalock);
9259 INIT_LIST_HEAD(&psli->mboxq);
9260 INIT_LIST_HEAD(&psli->mboxq_cmpl);
9261 /* Initialize list headers for txq and txcmplq as double linked lists */
9262 for (i = 0; i < psli->num_rings; i++) {
9263 pring = &psli->ring[i];
9265 pring->sli.sli3.next_cmdidx = 0;
9266 pring->sli.sli3.local_getidx = 0;
9267 pring->sli.sli3.cmdidx = 0;
9269 INIT_LIST_HEAD(&pring->txq);
9270 INIT_LIST_HEAD(&pring->txcmplq);
9271 INIT_LIST_HEAD(&pring->iocb_continueq);
9272 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
9273 INIT_LIST_HEAD(&pring->postbufq);
9274 spin_lock_init(&pring->ring_lock);
9276 spin_unlock_irq(&phba->hbalock);
9281 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
9282 * @phba: Pointer to HBA context object.
9284 * This routine flushes the mailbox command subsystem. It will unconditionally
9285 * flush all the mailbox commands in the three possible stages in the mailbox
9286 * command sub-system: pending mailbox command queue; the outstanding mailbox
9287 * command; and completed mailbox command queue. It is caller's responsibility
9288 * to make sure that the driver is in the proper state to flush the mailbox
9289 * command sub-system. Namely, the posting of mailbox commands into the
9290 * pending mailbox command queue from the various clients must be stopped;
9291 * either the HBA is in a state that it will never works on the outstanding
9292 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
9293 * mailbox command has been completed.
9296 lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
9298 LIST_HEAD(completions);
9299 struct lpfc_sli *psli = &phba->sli;
9301 unsigned long iflag;
9303 /* Flush all the mailbox commands in the mbox system */
9304 spin_lock_irqsave(&phba->hbalock, iflag);
9305 /* The pending mailbox command queue */
9306 list_splice_init(&phba->sli.mboxq, &completions);
9307 /* The outstanding active mailbox command */
9308 if (psli->mbox_active) {
9309 list_add_tail(&psli->mbox_active->list, &completions);
9310 psli->mbox_active = NULL;
9311 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9313 /* The completed mailbox command queue */
9314 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
9315 spin_unlock_irqrestore(&phba->hbalock, iflag);
9317 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
9318 while (!list_empty(&completions)) {
9319 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
9320 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
9322 pmb->mbox_cmpl(phba, pmb);
9327 * lpfc_sli_host_down - Vport cleanup function
9328 * @vport: Pointer to virtual port object.
9330 * lpfc_sli_host_down is called to clean up the resources
9331 * associated with a vport before destroying virtual
9332 * port data structures.
9333 * This function does following operations:
9334 * - Free discovery resources associated with this virtual
9336 * - Free iocbs associated with this virtual port in
9338 * - Send abort for all iocb commands associated with this
9341 * This function is called with no lock held and always returns 1.
9344 lpfc_sli_host_down(struct lpfc_vport *vport)
9346 LIST_HEAD(completions);
9347 struct lpfc_hba *phba = vport->phba;
9348 struct lpfc_sli *psli = &phba->sli;
9349 struct lpfc_sli_ring *pring;
9350 struct lpfc_iocbq *iocb, *next_iocb;
9352 unsigned long flags = 0;
9353 uint16_t prev_pring_flag;
9355 lpfc_cleanup_discovery_resources(vport);
9357 spin_lock_irqsave(&phba->hbalock, flags);
9358 for (i = 0; i < psli->num_rings; i++) {
9359 pring = &psli->ring[i];
9360 prev_pring_flag = pring->flag;
9361 /* Only slow rings */
9362 if (pring->ringno == LPFC_ELS_RING) {
9363 pring->flag |= LPFC_DEFERRED_RING_EVENT;
9364 /* Set the lpfc data pending flag */
9365 set_bit(LPFC_DATA_READY, &phba->data_flags);
9368 * Error everything on the txq since these iocbs have not been
9369 * given to the FW yet.
9371 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
9372 if (iocb->vport != vport)
9374 list_move_tail(&iocb->list, &completions);
9377 /* Next issue ABTS for everything on the txcmplq */
9378 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq,
9380 if (iocb->vport != vport)
9382 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
9385 pring->flag = prev_pring_flag;
9388 spin_unlock_irqrestore(&phba->hbalock, flags);
9390 /* Cancel all the IOCBs from the completions list */
9391 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9397 * lpfc_sli_hba_down - Resource cleanup function for the HBA
9398 * @phba: Pointer to HBA context object.
9400 * This function cleans up all iocb, buffers, mailbox commands
9401 * while shutting down the HBA. This function is called with no
9402 * lock held and always returns 1.
9403 * This function does the following to cleanup driver resources:
9404 * - Free discovery resources for each virtual port
9405 * - Cleanup any pending fabric iocbs
9406 * - Iterate through the iocb txq and free each entry
9408 * - Free up any buffer posted to the HBA
9409 * - Free mailbox commands in the mailbox queue.
9412 lpfc_sli_hba_down(struct lpfc_hba *phba)
9414 LIST_HEAD(completions);
9415 struct lpfc_sli *psli = &phba->sli;
9416 struct lpfc_sli_ring *pring;
9417 struct lpfc_dmabuf *buf_ptr;
9418 unsigned long flags = 0;
9421 /* Shutdown the mailbox command sub-system */
9422 lpfc_sli_mbox_sys_shutdown(phba, LPFC_MBX_WAIT);
9424 lpfc_hba_down_prep(phba);
9426 lpfc_fabric_abort_hba(phba);
9428 spin_lock_irqsave(&phba->hbalock, flags);
9429 for (i = 0; i < psli->num_rings; i++) {
9430 pring = &psli->ring[i];
9431 /* Only slow rings */
9432 if (pring->ringno == LPFC_ELS_RING) {
9433 pring->flag |= LPFC_DEFERRED_RING_EVENT;
9434 /* Set the lpfc data pending flag */
9435 set_bit(LPFC_DATA_READY, &phba->data_flags);
9439 * Error everything on the txq since these iocbs have not been
9440 * given to the FW yet.
9442 list_splice_init(&pring->txq, &completions);
9444 spin_unlock_irqrestore(&phba->hbalock, flags);
9446 /* Cancel all the IOCBs from the completions list */
9447 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9450 spin_lock_irqsave(&phba->hbalock, flags);
9451 list_splice_init(&phba->elsbuf, &completions);
9452 phba->elsbuf_cnt = 0;
9453 phba->elsbuf_prev_cnt = 0;
9454 spin_unlock_irqrestore(&phba->hbalock, flags);
9456 while (!list_empty(&completions)) {
9457 list_remove_head(&completions, buf_ptr,
9458 struct lpfc_dmabuf, list);
9459 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
9463 /* Return any active mbox cmds */
9464 del_timer_sync(&psli->mbox_tmo);
9466 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
9467 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
9468 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
9474 * lpfc_sli_pcimem_bcopy - SLI memory copy function
9475 * @srcp: Source memory pointer.
9476 * @destp: Destination memory pointer.
9477 * @cnt: Number of words required to be copied.
9479 * This function is used for copying data between driver memory
9480 * and the SLI memory. This function also changes the endianness
9481 * of each word if native endianness is different from SLI
9482 * endianness. This function can be called with or without
9486 lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
9488 uint32_t *src = srcp;
9489 uint32_t *dest = destp;
9493 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
9495 ldata = le32_to_cpu(ldata);
9504 * lpfc_sli_bemem_bcopy - SLI memory copy function
9505 * @srcp: Source memory pointer.
9506 * @destp: Destination memory pointer.
9507 * @cnt: Number of words required to be copied.
9509 * This function is used for copying data between a data structure
9510 * with big endian representation to local endianness.
9511 * This function can be called with or without lock.
9514 lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
9516 uint32_t *src = srcp;
9517 uint32_t *dest = destp;
9521 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
9523 ldata = be32_to_cpu(ldata);
9531 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
9532 * @phba: Pointer to HBA context object.
9533 * @pring: Pointer to driver SLI ring object.
9534 * @mp: Pointer to driver buffer object.
9536 * This function is called with no lock held.
9537 * It always return zero after adding the buffer to the postbufq
9541 lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9542 struct lpfc_dmabuf *mp)
9544 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
9546 spin_lock_irq(&phba->hbalock);
9547 list_add_tail(&mp->list, &pring->postbufq);
9548 pring->postbufq_cnt++;
9549 spin_unlock_irq(&phba->hbalock);
9554 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
9555 * @phba: Pointer to HBA context object.
9557 * When HBQ is enabled, buffers are searched based on tags. This function
9558 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
9559 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
9560 * does not conflict with tags of buffer posted for unsolicited events.
9561 * The function returns the allocated tag. The function is called with
9565 lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
9567 spin_lock_irq(&phba->hbalock);
9568 phba->buffer_tag_count++;
9570 * Always set the QUE_BUFTAG_BIT to distiguish between
9571 * a tag assigned by HBQ.
9573 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
9574 spin_unlock_irq(&phba->hbalock);
9575 return phba->buffer_tag_count;
9579 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
9580 * @phba: Pointer to HBA context object.
9581 * @pring: Pointer to driver SLI ring object.
9584 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
9585 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
9586 * iocb is posted to the response ring with the tag of the buffer.
9587 * This function searches the pring->postbufq list using the tag
9588 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
9589 * iocb. If the buffer is found then lpfc_dmabuf object of the
9590 * buffer is returned to the caller else NULL is returned.
9591 * This function is called with no lock held.
9593 struct lpfc_dmabuf *
9594 lpfc_sli_ring_taggedbuf_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 tag */
9601 spin_lock_irq(&phba->hbalock);
9602 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
9603 if (mp->buffer_tag == tag) {
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 "0402 Cannot find virtual addr for buffer tag on "
9614 "ring %d Data x%lx x%p x%p x%x\n",
9615 pring->ringno, (unsigned long) tag,
9616 slp->next, slp->prev, pring->postbufq_cnt);
9622 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
9623 * @phba: Pointer to HBA context object.
9624 * @pring: Pointer to driver SLI ring object.
9625 * @phys: DMA address of the buffer.
9627 * This function searches the buffer list using the dma_address
9628 * of unsolicited event to find the driver's lpfc_dmabuf object
9629 * corresponding to the dma_address. The function returns the
9630 * lpfc_dmabuf object if a buffer is found else it returns NULL.
9631 * This function is called by the ct and els unsolicited event
9632 * handlers to get the buffer associated with the unsolicited
9635 * This function is called with no lock held.
9637 struct lpfc_dmabuf *
9638 lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9641 struct lpfc_dmabuf *mp, *next_mp;
9642 struct list_head *slp = &pring->postbufq;
9644 /* Search postbufq, from the beginning, looking for a match on phys */
9645 spin_lock_irq(&phba->hbalock);
9646 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
9647 if (mp->phys == phys) {
9648 list_del_init(&mp->list);
9649 pring->postbufq_cnt--;
9650 spin_unlock_irq(&phba->hbalock);
9655 spin_unlock_irq(&phba->hbalock);
9656 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9657 "0410 Cannot find virtual addr for mapped buf on "
9658 "ring %d Data x%llx x%p x%p x%x\n",
9659 pring->ringno, (unsigned long long)phys,
9660 slp->next, slp->prev, pring->postbufq_cnt);
9665 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
9666 * @phba: Pointer to HBA context object.
9667 * @cmdiocb: Pointer to driver command iocb object.
9668 * @rspiocb: Pointer to driver response iocb object.
9670 * This function is the completion handler for the abort iocbs for
9671 * ELS commands. This function is called from the ELS ring event
9672 * handler with no lock held. This function frees memory resources
9673 * associated with the abort iocb.
9676 lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9677 struct lpfc_iocbq *rspiocb)
9679 IOCB_t *irsp = &rspiocb->iocb;
9680 uint16_t abort_iotag, abort_context;
9681 struct lpfc_iocbq *abort_iocb = NULL;
9683 if (irsp->ulpStatus) {
9686 * Assume that the port already completed and returned, or
9687 * will return the iocb. Just Log the message.
9689 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
9690 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
9692 spin_lock_irq(&phba->hbalock);
9693 if (phba->sli_rev < LPFC_SLI_REV4) {
9694 if (abort_iotag != 0 &&
9695 abort_iotag <= phba->sli.last_iotag)
9697 phba->sli.iocbq_lookup[abort_iotag];
9699 /* For sli4 the abort_tag is the XRI,
9700 * so the abort routine puts the iotag of the iocb
9701 * being aborted in the context field of the abort
9704 abort_iocb = phba->sli.iocbq_lookup[abort_context];
9706 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI,
9707 "0327 Cannot abort els iocb %p "
9708 "with tag %x context %x, abort status %x, "
9710 abort_iocb, abort_iotag, abort_context,
9711 irsp->ulpStatus, irsp->un.ulpWord[4]);
9713 spin_unlock_irq(&phba->hbalock);
9715 lpfc_sli_release_iocbq(phba, cmdiocb);
9720 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
9721 * @phba: Pointer to HBA context object.
9722 * @cmdiocb: Pointer to driver command iocb object.
9723 * @rspiocb: Pointer to driver response iocb object.
9725 * The function is called from SLI ring event handler with no
9726 * lock held. This function is the completion handler for ELS commands
9727 * which are aborted. The function frees memory resources used for
9728 * the aborted ELS commands.
9731 lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9732 struct lpfc_iocbq *rspiocb)
9734 IOCB_t *irsp = &rspiocb->iocb;
9736 /* ELS cmd tag <ulpIoTag> completes */
9737 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
9738 "0139 Ignoring ELS cmd tag x%x completion Data: "
9740 irsp->ulpIoTag, irsp->ulpStatus,
9741 irsp->un.ulpWord[4], irsp->ulpTimeout);
9742 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
9743 lpfc_ct_free_iocb(phba, cmdiocb);
9745 lpfc_els_free_iocb(phba, cmdiocb);
9750 * lpfc_sli_abort_iotag_issue - Issue abort for a command iocb
9751 * @phba: Pointer to HBA context object.
9752 * @pring: Pointer to driver SLI ring object.
9753 * @cmdiocb: Pointer to driver command iocb object.
9755 * This function issues an abort iocb for the provided command iocb down to
9756 * the port. Other than the case the outstanding command iocb is an abort
9757 * request, this function issues abort out unconditionally. This function is
9758 * called with hbalock held. The function returns 0 when it fails due to
9759 * memory allocation failure or when the command iocb is an abort request.
9762 lpfc_sli_abort_iotag_issue(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9763 struct lpfc_iocbq *cmdiocb)
9765 struct lpfc_vport *vport = cmdiocb->vport;
9766 struct lpfc_iocbq *abtsiocbp;
9767 IOCB_t *icmd = NULL;
9768 IOCB_t *iabt = NULL;
9771 unsigned long iflags;
9774 * There are certain command types we don't want to abort. And we
9775 * don't want to abort commands that are already in the process of
9778 icmd = &cmdiocb->iocb;
9779 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
9780 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
9781 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
9784 /* issue ABTS for this IOCB based on iotag */
9785 abtsiocbp = __lpfc_sli_get_iocbq(phba);
9786 if (abtsiocbp == NULL)
9789 /* This signals the response to set the correct status
9790 * before calling the completion handler
9792 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
9794 iabt = &abtsiocbp->iocb;
9795 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
9796 iabt->un.acxri.abortContextTag = icmd->ulpContext;
9797 if (phba->sli_rev == LPFC_SLI_REV4) {
9798 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
9799 iabt->un.acxri.abortContextTag = cmdiocb->iotag;
9802 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
9804 iabt->ulpClass = icmd->ulpClass;
9806 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
9807 abtsiocbp->fcp_wqidx = cmdiocb->fcp_wqidx;
9808 if (cmdiocb->iocb_flag & LPFC_IO_FCP)
9809 abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
9810 if (cmdiocb->iocb_flag & LPFC_IO_FOF)
9811 abtsiocbp->iocb_flag |= LPFC_IO_FOF;
9813 if (phba->link_state >= LPFC_LINK_UP)
9814 iabt->ulpCommand = CMD_ABORT_XRI_CN;
9816 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
9818 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
9820 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
9821 "0339 Abort xri x%x, original iotag x%x, "
9822 "abort cmd iotag x%x\n",
9823 iabt->un.acxri.abortIoTag,
9824 iabt->un.acxri.abortContextTag,
9827 if (phba->sli_rev == LPFC_SLI_REV4) {
9829 lpfc_sli_calc_ring(phba, pring->ringno, abtsiocbp);
9830 if (unlikely(ring_number == LPFC_HBA_ERROR))
9832 pring = &phba->sli.ring[ring_number];
9833 /* Note: both hbalock and ring_lock need to be set here */
9834 spin_lock_irqsave(&pring->ring_lock, iflags);
9835 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
9837 spin_unlock_irqrestore(&pring->ring_lock, iflags);
9839 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
9844 __lpfc_sli_release_iocbq(phba, abtsiocbp);
9847 * Caller to this routine should check for IOCB_ERROR
9848 * and handle it properly. This routine no longer removes
9849 * iocb off txcmplq and call compl in case of IOCB_ERROR.
9855 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
9856 * @phba: Pointer to HBA context object.
9857 * @pring: Pointer to driver SLI ring object.
9858 * @cmdiocb: Pointer to driver command iocb object.
9860 * This function issues an abort iocb for the provided command iocb. In case
9861 * of unloading, the abort iocb will not be issued to commands on the ELS
9862 * ring. Instead, the callback function shall be changed to those commands
9863 * so that nothing happens when them finishes. This function is called with
9864 * hbalock held. The function returns 0 when the command iocb is an abort
9868 lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9869 struct lpfc_iocbq *cmdiocb)
9871 struct lpfc_vport *vport = cmdiocb->vport;
9872 int retval = IOCB_ERROR;
9873 IOCB_t *icmd = NULL;
9876 * There are certain command types we don't want to abort. And we
9877 * don't want to abort commands that are already in the process of
9880 icmd = &cmdiocb->iocb;
9881 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
9882 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
9883 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
9887 * If we're unloading, don't abort iocb on the ELS ring, but change
9888 * the callback so that nothing happens when it finishes.
9890 if ((vport->load_flag & FC_UNLOADING) &&
9891 (pring->ringno == LPFC_ELS_RING)) {
9892 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
9893 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
9895 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
9896 goto abort_iotag_exit;
9899 /* Now, we try to issue the abort to the cmdiocb out */
9900 retval = lpfc_sli_abort_iotag_issue(phba, pring, cmdiocb);
9904 * Caller to this routine should check for IOCB_ERROR
9905 * and handle it properly. This routine no longer removes
9906 * iocb off txcmplq and call compl in case of IOCB_ERROR.
9912 * lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
9913 * @phba: pointer to lpfc HBA data structure.
9915 * This routine will abort all pending and outstanding iocbs to an HBA.
9918 lpfc_sli_hba_iocb_abort(struct lpfc_hba *phba)
9920 struct lpfc_sli *psli = &phba->sli;
9921 struct lpfc_sli_ring *pring;
9924 for (i = 0; i < psli->num_rings; i++) {
9925 pring = &psli->ring[i];
9926 lpfc_sli_abort_iocb_ring(phba, pring);
9931 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
9932 * @iocbq: Pointer to driver iocb object.
9933 * @vport: Pointer to driver virtual port object.
9934 * @tgt_id: SCSI ID of the target.
9935 * @lun_id: LUN ID of the scsi device.
9936 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
9938 * This function acts as an iocb filter for functions which abort or count
9939 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
9940 * 0 if the filtering criteria is met for the given iocb and will return
9941 * 1 if the filtering criteria is not met.
9942 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
9943 * given iocb is for the SCSI device specified by vport, tgt_id and
9945 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
9946 * given iocb is for the SCSI target specified by vport and tgt_id
9948 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
9949 * given iocb is for the SCSI host associated with the given vport.
9950 * This function is called with no locks held.
9953 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
9954 uint16_t tgt_id, uint64_t lun_id,
9955 lpfc_ctx_cmd ctx_cmd)
9957 struct lpfc_scsi_buf *lpfc_cmd;
9960 if (!(iocbq->iocb_flag & LPFC_IO_FCP))
9963 if (iocbq->vport != vport)
9966 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
9968 if (lpfc_cmd->pCmd == NULL)
9973 if ((lpfc_cmd->rdata->pnode) &&
9974 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
9975 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
9979 if ((lpfc_cmd->rdata->pnode) &&
9980 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
9987 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
9996 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
9997 * @vport: Pointer to virtual port.
9998 * @tgt_id: SCSI ID of the target.
9999 * @lun_id: LUN ID of the scsi device.
10000 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
10002 * This function returns number of FCP commands pending for the vport.
10003 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
10004 * commands pending on the vport associated with SCSI device specified
10005 * by tgt_id and lun_id parameters.
10006 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
10007 * commands pending on the vport associated with SCSI target specified
10008 * by tgt_id parameter.
10009 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
10010 * commands pending on the vport.
10011 * This function returns the number of iocbs which satisfy the filter.
10012 * This function is called without any lock held.
10015 lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
10016 lpfc_ctx_cmd ctx_cmd)
10018 struct lpfc_hba *phba = vport->phba;
10019 struct lpfc_iocbq *iocbq;
10022 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
10023 iocbq = phba->sli.iocbq_lookup[i];
10025 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
10034 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
10035 * @phba: Pointer to HBA context object
10036 * @cmdiocb: Pointer to command iocb object.
10037 * @rspiocb: Pointer to response iocb object.
10039 * This function is called when an aborted FCP iocb completes. This
10040 * function is called by the ring event handler with no lock held.
10041 * This function frees the iocb.
10044 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
10045 struct lpfc_iocbq *rspiocb)
10047 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10048 "3096 ABORT_XRI_CN completing on rpi x%x "
10049 "original iotag x%x, abort cmd iotag x%x "
10050 "status 0x%x, reason 0x%x\n",
10051 cmdiocb->iocb.un.acxri.abortContextTag,
10052 cmdiocb->iocb.un.acxri.abortIoTag,
10053 cmdiocb->iotag, rspiocb->iocb.ulpStatus,
10054 rspiocb->iocb.un.ulpWord[4]);
10055 lpfc_sli_release_iocbq(phba, cmdiocb);
10060 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
10061 * @vport: Pointer to virtual port.
10062 * @pring: Pointer to driver SLI ring object.
10063 * @tgt_id: SCSI ID of the target.
10064 * @lun_id: LUN ID of the scsi device.
10065 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
10067 * This function sends an abort command for every SCSI command
10068 * associated with the given virtual port pending on the ring
10069 * filtered by lpfc_sli_validate_fcp_iocb function.
10070 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
10071 * FCP iocbs associated with lun specified by tgt_id and lun_id
10073 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
10074 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
10075 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
10076 * FCP iocbs associated with virtual port.
10077 * This function returns number of iocbs it failed to abort.
10078 * This function is called with no locks held.
10081 lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
10082 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
10084 struct lpfc_hba *phba = vport->phba;
10085 struct lpfc_iocbq *iocbq;
10086 struct lpfc_iocbq *abtsiocb;
10087 IOCB_t *cmd = NULL;
10088 int errcnt = 0, ret_val = 0;
10091 for (i = 1; i <= phba->sli.last_iotag; i++) {
10092 iocbq = phba->sli.iocbq_lookup[i];
10094 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
10099 * If the iocbq is already being aborted, don't take a second
10100 * action, but do count it.
10102 if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
10105 /* issue ABTS for this IOCB based on iotag */
10106 abtsiocb = lpfc_sli_get_iocbq(phba);
10107 if (abtsiocb == NULL) {
10112 /* indicate the IO is being aborted by the driver. */
10113 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
10115 cmd = &iocbq->iocb;
10116 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
10117 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
10118 if (phba->sli_rev == LPFC_SLI_REV4)
10119 abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
10121 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
10122 abtsiocb->iocb.ulpLe = 1;
10123 abtsiocb->iocb.ulpClass = cmd->ulpClass;
10124 abtsiocb->vport = vport;
10126 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
10127 abtsiocb->fcp_wqidx = iocbq->fcp_wqidx;
10128 if (iocbq->iocb_flag & LPFC_IO_FCP)
10129 abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
10130 if (iocbq->iocb_flag & LPFC_IO_FOF)
10131 abtsiocb->iocb_flag |= LPFC_IO_FOF;
10133 if (lpfc_is_link_up(phba))
10134 abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
10136 abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
10138 /* Setup callback routine and issue the command. */
10139 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
10140 ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
10142 if (ret_val == IOCB_ERROR) {
10143 lpfc_sli_release_iocbq(phba, abtsiocb);
10153 * lpfc_sli_abort_taskmgmt - issue abort for all commands on a host/target/LUN
10154 * @vport: Pointer to virtual port.
10155 * @pring: Pointer to driver SLI ring object.
10156 * @tgt_id: SCSI ID of the target.
10157 * @lun_id: LUN ID of the scsi device.
10158 * @taskmgmt_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
10160 * This function sends an abort command for every SCSI command
10161 * associated with the given virtual port pending on the ring
10162 * filtered by lpfc_sli_validate_fcp_iocb function.
10163 * When taskmgmt_cmd == LPFC_CTX_LUN, the function sends abort only to the
10164 * FCP iocbs associated with lun specified by tgt_id and lun_id
10166 * When taskmgmt_cmd == LPFC_CTX_TGT, the function sends abort only to the
10167 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
10168 * When taskmgmt_cmd == LPFC_CTX_HOST, the function sends abort to all
10169 * FCP iocbs associated with virtual port.
10170 * This function returns number of iocbs it aborted .
10171 * This function is called with no locks held right after a taskmgmt
10175 lpfc_sli_abort_taskmgmt(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
10176 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd cmd)
10178 struct lpfc_hba *phba = vport->phba;
10179 struct lpfc_scsi_buf *lpfc_cmd;
10180 struct lpfc_iocbq *abtsiocbq;
10181 struct lpfc_nodelist *ndlp;
10182 struct lpfc_iocbq *iocbq;
10184 int sum, i, ret_val;
10185 unsigned long iflags;
10186 struct lpfc_sli_ring *pring_s4;
10187 uint32_t ring_number;
10189 spin_lock_irq(&phba->hbalock);
10191 /* all I/Os are in process of being flushed */
10192 if (phba->hba_flag & HBA_FCP_IOQ_FLUSH) {
10193 spin_unlock_irq(&phba->hbalock);
10198 for (i = 1; i <= phba->sli.last_iotag; i++) {
10199 iocbq = phba->sli.iocbq_lookup[i];
10201 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
10206 * If the iocbq is already being aborted, don't take a second
10207 * action, but do count it.
10209 if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
10212 /* issue ABTS for this IOCB based on iotag */
10213 abtsiocbq = __lpfc_sli_get_iocbq(phba);
10214 if (abtsiocbq == NULL)
10217 icmd = &iocbq->iocb;
10218 abtsiocbq->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
10219 abtsiocbq->iocb.un.acxri.abortContextTag = icmd->ulpContext;
10220 if (phba->sli_rev == LPFC_SLI_REV4)
10221 abtsiocbq->iocb.un.acxri.abortIoTag =
10222 iocbq->sli4_xritag;
10224 abtsiocbq->iocb.un.acxri.abortIoTag = icmd->ulpIoTag;
10225 abtsiocbq->iocb.ulpLe = 1;
10226 abtsiocbq->iocb.ulpClass = icmd->ulpClass;
10227 abtsiocbq->vport = vport;
10229 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
10230 abtsiocbq->fcp_wqidx = iocbq->fcp_wqidx;
10231 if (iocbq->iocb_flag & LPFC_IO_FCP)
10232 abtsiocbq->iocb_flag |= LPFC_USE_FCPWQIDX;
10233 if (iocbq->iocb_flag & LPFC_IO_FOF)
10234 abtsiocbq->iocb_flag |= LPFC_IO_FOF;
10236 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
10237 ndlp = lpfc_cmd->rdata->pnode;
10239 if (lpfc_is_link_up(phba) &&
10240 (ndlp && ndlp->nlp_state == NLP_STE_MAPPED_NODE))
10241 abtsiocbq->iocb.ulpCommand = CMD_ABORT_XRI_CN;
10243 abtsiocbq->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
10245 /* Setup callback routine and issue the command. */
10246 abtsiocbq->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
10249 * Indicate the IO is being aborted by the driver and set
10250 * the caller's flag into the aborted IO.
10252 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
10254 if (phba->sli_rev == LPFC_SLI_REV4) {
10255 ring_number = MAX_SLI3_CONFIGURED_RINGS +
10257 pring_s4 = &phba->sli.ring[ring_number];
10258 /* Note: both hbalock and ring_lock must be set here */
10259 spin_lock_irqsave(&pring_s4->ring_lock, iflags);
10260 ret_val = __lpfc_sli_issue_iocb(phba, pring_s4->ringno,
10262 spin_unlock_irqrestore(&pring_s4->ring_lock, iflags);
10264 ret_val = __lpfc_sli_issue_iocb(phba, pring->ringno,
10269 if (ret_val == IOCB_ERROR)
10270 __lpfc_sli_release_iocbq(phba, abtsiocbq);
10274 spin_unlock_irq(&phba->hbalock);
10279 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
10280 * @phba: Pointer to HBA context object.
10281 * @cmdiocbq: Pointer to command iocb.
10282 * @rspiocbq: Pointer to response iocb.
10284 * This function is the completion handler for iocbs issued using
10285 * lpfc_sli_issue_iocb_wait function. This function is called by the
10286 * ring event handler function without any lock held. This function
10287 * can be called from both worker thread context and interrupt
10288 * context. This function also can be called from other thread which
10289 * cleans up the SLI layer objects.
10290 * This function copy the contents of the response iocb to the
10291 * response iocb memory object provided by the caller of
10292 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
10293 * sleeps for the iocb completion.
10296 lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
10297 struct lpfc_iocbq *cmdiocbq,
10298 struct lpfc_iocbq *rspiocbq)
10300 wait_queue_head_t *pdone_q;
10301 unsigned long iflags;
10302 struct lpfc_scsi_buf *lpfc_cmd;
10304 spin_lock_irqsave(&phba->hbalock, iflags);
10305 if (cmdiocbq->iocb_flag & LPFC_IO_WAKE_TMO) {
10308 * A time out has occurred for the iocb. If a time out
10309 * completion handler has been supplied, call it. Otherwise,
10310 * just free the iocbq.
10313 spin_unlock_irqrestore(&phba->hbalock, iflags);
10314 cmdiocbq->iocb_cmpl = cmdiocbq->wait_iocb_cmpl;
10315 cmdiocbq->wait_iocb_cmpl = NULL;
10316 if (cmdiocbq->iocb_cmpl)
10317 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, NULL);
10319 lpfc_sli_release_iocbq(phba, cmdiocbq);
10323 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
10324 if (cmdiocbq->context2 && rspiocbq)
10325 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
10326 &rspiocbq->iocb, sizeof(IOCB_t));
10328 /* Set the exchange busy flag for task management commands */
10329 if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) &&
10330 !(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) {
10331 lpfc_cmd = container_of(cmdiocbq, struct lpfc_scsi_buf,
10333 lpfc_cmd->exch_busy = rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY;
10336 pdone_q = cmdiocbq->context_un.wait_queue;
10339 spin_unlock_irqrestore(&phba->hbalock, iflags);
10344 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
10345 * @phba: Pointer to HBA context object..
10346 * @piocbq: Pointer to command iocb.
10347 * @flag: Flag to test.
10349 * This routine grabs the hbalock and then test the iocb_flag to
10350 * see if the passed in flag is set.
10352 * 1 if flag is set.
10353 * 0 if flag is not set.
10356 lpfc_chk_iocb_flg(struct lpfc_hba *phba,
10357 struct lpfc_iocbq *piocbq, uint32_t flag)
10359 unsigned long iflags;
10362 spin_lock_irqsave(&phba->hbalock, iflags);
10363 ret = piocbq->iocb_flag & flag;
10364 spin_unlock_irqrestore(&phba->hbalock, iflags);
10370 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
10371 * @phba: Pointer to HBA context object..
10372 * @pring: Pointer to sli ring.
10373 * @piocb: Pointer to command iocb.
10374 * @prspiocbq: Pointer to response iocb.
10375 * @timeout: Timeout in number of seconds.
10377 * This function issues the iocb to firmware and waits for the
10378 * iocb to complete. The iocb_cmpl field of the shall be used
10379 * to handle iocbs which time out. If the field is NULL, the
10380 * function shall free the iocbq structure. If more clean up is
10381 * needed, the caller is expected to provide a completion function
10382 * that will provide the needed clean up. If the iocb command is
10383 * not completed within timeout seconds, the function will either
10384 * free the iocbq structure (if iocb_cmpl == NULL) or execute the
10385 * completion function set in the iocb_cmpl field and then return
10386 * a status of IOCB_TIMEDOUT. The caller should not free the iocb
10387 * resources if this function returns IOCB_TIMEDOUT.
10388 * The function waits for the iocb completion using an
10389 * non-interruptible wait.
10390 * This function will sleep while waiting for iocb completion.
10391 * So, this function should not be called from any context which
10392 * does not allow sleeping. Due to the same reason, this function
10393 * cannot be called with interrupt disabled.
10394 * This function assumes that the iocb completions occur while
10395 * this function sleep. So, this function cannot be called from
10396 * the thread which process iocb completion for this ring.
10397 * This function clears the iocb_flag of the iocb object before
10398 * issuing the iocb and the iocb completion handler sets this
10399 * flag and wakes this thread when the iocb completes.
10400 * The contents of the response iocb will be copied to prspiocbq
10401 * by the completion handler when the command completes.
10402 * This function returns IOCB_SUCCESS when success.
10403 * This function is called with no lock held.
10406 lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
10407 uint32_t ring_number,
10408 struct lpfc_iocbq *piocb,
10409 struct lpfc_iocbq *prspiocbq,
10412 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
10413 long timeleft, timeout_req = 0;
10414 int retval = IOCB_SUCCESS;
10416 struct lpfc_iocbq *iocb;
10418 int txcmplq_cnt = 0;
10419 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
10420 unsigned long iflags;
10421 bool iocb_completed = true;
10424 * If the caller has provided a response iocbq buffer, then context2
10425 * is NULL or its an error.
10428 if (piocb->context2)
10430 piocb->context2 = prspiocbq;
10433 piocb->wait_iocb_cmpl = piocb->iocb_cmpl;
10434 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
10435 piocb->context_un.wait_queue = &done_q;
10436 piocb->iocb_flag &= ~(LPFC_IO_WAKE | LPFC_IO_WAKE_TMO);
10438 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
10439 if (lpfc_readl(phba->HCregaddr, &creg_val))
10441 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
10442 writel(creg_val, phba->HCregaddr);
10443 readl(phba->HCregaddr); /* flush */
10446 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb,
10447 SLI_IOCB_RET_IOCB);
10448 if (retval == IOCB_SUCCESS) {
10449 timeout_req = msecs_to_jiffies(timeout * 1000);
10450 timeleft = wait_event_timeout(done_q,
10451 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
10453 spin_lock_irqsave(&phba->hbalock, iflags);
10454 if (!(piocb->iocb_flag & LPFC_IO_WAKE)) {
10457 * IOCB timed out. Inform the wake iocb wait
10458 * completion function and set local status
10461 iocb_completed = false;
10462 piocb->iocb_flag |= LPFC_IO_WAKE_TMO;
10464 spin_unlock_irqrestore(&phba->hbalock, iflags);
10465 if (iocb_completed) {
10466 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10467 "0331 IOCB wake signaled\n");
10468 /* Note: we are not indicating if the IOCB has a success
10469 * status or not - that's for the caller to check.
10470 * IOCB_SUCCESS means just that the command was sent and
10471 * completed. Not that it completed successfully.
10473 } else if (timeleft == 0) {
10474 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10475 "0338 IOCB wait timeout error - no "
10476 "wake response Data x%x\n", timeout);
10477 retval = IOCB_TIMEDOUT;
10479 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10480 "0330 IOCB wake NOT set, "
10482 timeout, (timeleft / jiffies));
10483 retval = IOCB_TIMEDOUT;
10485 } else if (retval == IOCB_BUSY) {
10486 if (phba->cfg_log_verbose & LOG_SLI) {
10487 list_for_each_entry(iocb, &pring->txq, list) {
10490 list_for_each_entry(iocb, &pring->txcmplq, list) {
10493 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10494 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
10495 phba->iocb_cnt, txq_cnt, txcmplq_cnt);
10499 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10500 "0332 IOCB wait issue failed, Data x%x\n",
10502 retval = IOCB_ERROR;
10505 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
10506 if (lpfc_readl(phba->HCregaddr, &creg_val))
10508 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
10509 writel(creg_val, phba->HCregaddr);
10510 readl(phba->HCregaddr); /* flush */
10514 piocb->context2 = NULL;
10516 piocb->context_un.wait_queue = NULL;
10517 piocb->iocb_cmpl = NULL;
10522 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
10523 * @phba: Pointer to HBA context object.
10524 * @pmboxq: Pointer to driver mailbox object.
10525 * @timeout: Timeout in number of seconds.
10527 * This function issues the mailbox to firmware and waits for the
10528 * mailbox command to complete. If the mailbox command is not
10529 * completed within timeout seconds, it returns MBX_TIMEOUT.
10530 * The function waits for the mailbox completion using an
10531 * interruptible wait. If the thread is woken up due to a
10532 * signal, MBX_TIMEOUT error is returned to the caller. Caller
10533 * should not free the mailbox resources, if this function returns
10535 * This function will sleep while waiting for mailbox completion.
10536 * So, this function should not be called from any context which
10537 * does not allow sleeping. Due to the same reason, this function
10538 * cannot be called with interrupt disabled.
10539 * This function assumes that the mailbox completion occurs while
10540 * this function sleep. So, this function cannot be called from
10541 * the worker thread which processes mailbox completion.
10542 * This function is called in the context of HBA management
10544 * This function returns MBX_SUCCESS when successful.
10545 * This function is called with no lock held.
10548 lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
10551 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
10552 MAILBOX_t *mb = NULL;
10554 unsigned long flag;
10556 /* The caller might set context1 for extended buffer */
10557 if (pmboxq->context1)
10558 mb = (MAILBOX_t *)pmboxq->context1;
10560 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
10561 /* setup wake call as IOCB callback */
10562 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
10563 /* setup context field to pass wait_queue pointer to wake function */
10564 pmboxq->context1 = &done_q;
10566 /* now issue the command */
10567 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
10568 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
10569 wait_event_interruptible_timeout(done_q,
10570 pmboxq->mbox_flag & LPFC_MBX_WAKE,
10571 msecs_to_jiffies(timeout * 1000));
10573 spin_lock_irqsave(&phba->hbalock, flag);
10574 /* restore the possible extended buffer for free resource */
10575 pmboxq->context1 = (uint8_t *)mb;
10577 * if LPFC_MBX_WAKE flag is set the mailbox is completed
10578 * else do not free the resources.
10580 if (pmboxq->mbox_flag & LPFC_MBX_WAKE) {
10581 retval = MBX_SUCCESS;
10583 retval = MBX_TIMEOUT;
10584 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10586 spin_unlock_irqrestore(&phba->hbalock, flag);
10588 /* restore the possible extended buffer for free resource */
10589 pmboxq->context1 = (uint8_t *)mb;
10596 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
10597 * @phba: Pointer to HBA context.
10599 * This function is called to shutdown the driver's mailbox sub-system.
10600 * It first marks the mailbox sub-system is in a block state to prevent
10601 * the asynchronous mailbox command from issued off the pending mailbox
10602 * command queue. If the mailbox command sub-system shutdown is due to
10603 * HBA error conditions such as EEH or ERATT, this routine shall invoke
10604 * the mailbox sub-system flush routine to forcefully bring down the
10605 * mailbox sub-system. Otherwise, if it is due to normal condition (such
10606 * as with offline or HBA function reset), this routine will wait for the
10607 * outstanding mailbox command to complete before invoking the mailbox
10608 * sub-system flush routine to gracefully bring down mailbox sub-system.
10611 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba, int mbx_action)
10613 struct lpfc_sli *psli = &phba->sli;
10614 unsigned long timeout;
10616 if (mbx_action == LPFC_MBX_NO_WAIT) {
10617 /* delay 100ms for port state */
10619 lpfc_sli_mbox_sys_flush(phba);
10622 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
10624 spin_lock_irq(&phba->hbalock);
10625 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
10627 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
10628 /* Determine how long we might wait for the active mailbox
10629 * command to be gracefully completed by firmware.
10631 if (phba->sli.mbox_active)
10632 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
10633 phba->sli.mbox_active) *
10635 spin_unlock_irq(&phba->hbalock);
10637 while (phba->sli.mbox_active) {
10638 /* Check active mailbox complete status every 2ms */
10640 if (time_after(jiffies, timeout))
10641 /* Timeout, let the mailbox flush routine to
10642 * forcefully release active mailbox command
10647 spin_unlock_irq(&phba->hbalock);
10649 lpfc_sli_mbox_sys_flush(phba);
10653 * lpfc_sli_eratt_read - read sli-3 error attention events
10654 * @phba: Pointer to HBA context.
10656 * This function is called to read the SLI3 device error attention registers
10657 * for possible error attention events. The caller must hold the hostlock
10658 * with spin_lock_irq().
10660 * This function returns 1 when there is Error Attention in the Host Attention
10661 * Register and returns 0 otherwise.
10664 lpfc_sli_eratt_read(struct lpfc_hba *phba)
10668 /* Read chip Host Attention (HA) register */
10669 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10672 if (ha_copy & HA_ERATT) {
10673 /* Read host status register to retrieve error event */
10674 if (lpfc_sli_read_hs(phba))
10677 /* Check if there is a deferred error condition is active */
10678 if ((HS_FFER1 & phba->work_hs) &&
10679 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
10680 HS_FFER6 | HS_FFER7 | HS_FFER8) & phba->work_hs)) {
10681 phba->hba_flag |= DEFER_ERATT;
10682 /* Clear all interrupt enable conditions */
10683 writel(0, phba->HCregaddr);
10684 readl(phba->HCregaddr);
10687 /* Set the driver HA work bitmap */
10688 phba->work_ha |= HA_ERATT;
10689 /* Indicate polling handles this ERATT */
10690 phba->hba_flag |= HBA_ERATT_HANDLED;
10696 /* Set the driver HS work bitmap */
10697 phba->work_hs |= UNPLUG_ERR;
10698 /* Set the driver HA work bitmap */
10699 phba->work_ha |= HA_ERATT;
10700 /* Indicate polling handles this ERATT */
10701 phba->hba_flag |= HBA_ERATT_HANDLED;
10706 * lpfc_sli4_eratt_read - read sli-4 error attention events
10707 * @phba: Pointer to HBA context.
10709 * This function is called to read the SLI4 device error attention registers
10710 * for possible error attention events. The caller must hold the hostlock
10711 * with spin_lock_irq().
10713 * This function returns 1 when there is Error Attention in the Host Attention
10714 * Register and returns 0 otherwise.
10717 lpfc_sli4_eratt_read(struct lpfc_hba *phba)
10719 uint32_t uerr_sta_hi, uerr_sta_lo;
10720 uint32_t if_type, portsmphr;
10721 struct lpfc_register portstat_reg;
10724 * For now, use the SLI4 device internal unrecoverable error
10725 * registers for error attention. This can be changed later.
10727 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10729 case LPFC_SLI_INTF_IF_TYPE_0:
10730 if (lpfc_readl(phba->sli4_hba.u.if_type0.UERRLOregaddr,
10732 lpfc_readl(phba->sli4_hba.u.if_type0.UERRHIregaddr,
10734 phba->work_hs |= UNPLUG_ERR;
10735 phba->work_ha |= HA_ERATT;
10736 phba->hba_flag |= HBA_ERATT_HANDLED;
10739 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
10740 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
10741 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10742 "1423 HBA Unrecoverable error: "
10743 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
10744 "ue_mask_lo_reg=0x%x, "
10745 "ue_mask_hi_reg=0x%x\n",
10746 uerr_sta_lo, uerr_sta_hi,
10747 phba->sli4_hba.ue_mask_lo,
10748 phba->sli4_hba.ue_mask_hi);
10749 phba->work_status[0] = uerr_sta_lo;
10750 phba->work_status[1] = uerr_sta_hi;
10751 phba->work_ha |= HA_ERATT;
10752 phba->hba_flag |= HBA_ERATT_HANDLED;
10756 case LPFC_SLI_INTF_IF_TYPE_2:
10757 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
10758 &portstat_reg.word0) ||
10759 lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
10761 phba->work_hs |= UNPLUG_ERR;
10762 phba->work_ha |= HA_ERATT;
10763 phba->hba_flag |= HBA_ERATT_HANDLED;
10766 if (bf_get(lpfc_sliport_status_err, &portstat_reg)) {
10767 phba->work_status[0] =
10768 readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
10769 phba->work_status[1] =
10770 readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
10771 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10772 "2885 Port Status Event: "
10773 "port status reg 0x%x, "
10774 "port smphr reg 0x%x, "
10775 "error 1=0x%x, error 2=0x%x\n",
10776 portstat_reg.word0,
10778 phba->work_status[0],
10779 phba->work_status[1]);
10780 phba->work_ha |= HA_ERATT;
10781 phba->hba_flag |= HBA_ERATT_HANDLED;
10785 case LPFC_SLI_INTF_IF_TYPE_1:
10787 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10788 "2886 HBA Error Attention on unsupported "
10789 "if type %d.", if_type);
10797 * lpfc_sli_check_eratt - check error attention events
10798 * @phba: Pointer to HBA context.
10800 * This function is called from timer soft interrupt context to check HBA's
10801 * error attention register bit for error attention events.
10803 * This function returns 1 when there is Error Attention in the Host Attention
10804 * Register and returns 0 otherwise.
10807 lpfc_sli_check_eratt(struct lpfc_hba *phba)
10811 /* If somebody is waiting to handle an eratt, don't process it
10812 * here. The brdkill function will do this.
10814 if (phba->link_flag & LS_IGNORE_ERATT)
10817 /* Check if interrupt handler handles this ERATT */
10818 spin_lock_irq(&phba->hbalock);
10819 if (phba->hba_flag & HBA_ERATT_HANDLED) {
10820 /* Interrupt handler has handled ERATT */
10821 spin_unlock_irq(&phba->hbalock);
10826 * If there is deferred error attention, do not check for error
10829 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10830 spin_unlock_irq(&phba->hbalock);
10834 /* If PCI channel is offline, don't process it */
10835 if (unlikely(pci_channel_offline(phba->pcidev))) {
10836 spin_unlock_irq(&phba->hbalock);
10840 switch (phba->sli_rev) {
10841 case LPFC_SLI_REV2:
10842 case LPFC_SLI_REV3:
10843 /* Read chip Host Attention (HA) register */
10844 ha_copy = lpfc_sli_eratt_read(phba);
10846 case LPFC_SLI_REV4:
10847 /* Read device Uncoverable Error (UERR) registers */
10848 ha_copy = lpfc_sli4_eratt_read(phba);
10851 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10852 "0299 Invalid SLI revision (%d)\n",
10857 spin_unlock_irq(&phba->hbalock);
10863 * lpfc_intr_state_check - Check device state for interrupt handling
10864 * @phba: Pointer to HBA context.
10866 * This inline routine checks whether a device or its PCI slot is in a state
10867 * that the interrupt should be handled.
10869 * This function returns 0 if the device or the PCI slot is in a state that
10870 * interrupt should be handled, otherwise -EIO.
10873 lpfc_intr_state_check(struct lpfc_hba *phba)
10875 /* If the pci channel is offline, ignore all the interrupts */
10876 if (unlikely(pci_channel_offline(phba->pcidev)))
10879 /* Update device level interrupt statistics */
10880 phba->sli.slistat.sli_intr++;
10882 /* Ignore all interrupts during initialization. */
10883 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
10890 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
10891 * @irq: Interrupt number.
10892 * @dev_id: The device context pointer.
10894 * This function is directly called from the PCI layer as an interrupt
10895 * service routine when device with SLI-3 interface spec is enabled with
10896 * MSI-X multi-message interrupt mode and there are slow-path events in
10897 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
10898 * interrupt mode, this function is called as part of the device-level
10899 * interrupt handler. When the PCI slot is in error recovery or the HBA
10900 * is undergoing initialization, the interrupt handler will not process
10901 * the interrupt. The link attention and ELS ring attention events are
10902 * handled by the worker thread. The interrupt handler signals the worker
10903 * thread and returns for these events. This function is called without
10904 * any lock held. It gets the hbalock to access and update SLI data
10907 * This function returns IRQ_HANDLED when interrupt is handled else it
10908 * returns IRQ_NONE.
10911 lpfc_sli_sp_intr_handler(int irq, void *dev_id)
10913 struct lpfc_hba *phba;
10914 uint32_t ha_copy, hc_copy;
10915 uint32_t work_ha_copy;
10916 unsigned long status;
10917 unsigned long iflag;
10920 MAILBOX_t *mbox, *pmbox;
10921 struct lpfc_vport *vport;
10922 struct lpfc_nodelist *ndlp;
10923 struct lpfc_dmabuf *mp;
10928 * Get the driver's phba structure from the dev_id and
10929 * assume the HBA is not interrupting.
10931 phba = (struct lpfc_hba *)dev_id;
10933 if (unlikely(!phba))
10937 * Stuff needs to be attented to when this function is invoked as an
10938 * individual interrupt handler in MSI-X multi-message interrupt mode
10940 if (phba->intr_type == MSIX) {
10941 /* Check device state for handling interrupt */
10942 if (lpfc_intr_state_check(phba))
10944 /* Need to read HA REG for slow-path events */
10945 spin_lock_irqsave(&phba->hbalock, iflag);
10946 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10948 /* If somebody is waiting to handle an eratt don't process it
10949 * here. The brdkill function will do this.
10951 if (phba->link_flag & LS_IGNORE_ERATT)
10952 ha_copy &= ~HA_ERATT;
10953 /* Check the need for handling ERATT in interrupt handler */
10954 if (ha_copy & HA_ERATT) {
10955 if (phba->hba_flag & HBA_ERATT_HANDLED)
10956 /* ERATT polling has handled ERATT */
10957 ha_copy &= ~HA_ERATT;
10959 /* Indicate interrupt handler handles ERATT */
10960 phba->hba_flag |= HBA_ERATT_HANDLED;
10964 * If there is deferred error attention, do not check for any
10967 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10968 spin_unlock_irqrestore(&phba->hbalock, iflag);
10972 /* Clear up only attention source related to slow-path */
10973 if (lpfc_readl(phba->HCregaddr, &hc_copy))
10976 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
10977 HC_LAINT_ENA | HC_ERINT_ENA),
10979 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
10981 writel(hc_copy, phba->HCregaddr);
10982 readl(phba->HAregaddr); /* flush */
10983 spin_unlock_irqrestore(&phba->hbalock, iflag);
10985 ha_copy = phba->ha_copy;
10987 work_ha_copy = ha_copy & phba->work_ha_mask;
10989 if (work_ha_copy) {
10990 if (work_ha_copy & HA_LATT) {
10991 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
10993 * Turn off Link Attention interrupts
10994 * until CLEAR_LA done
10996 spin_lock_irqsave(&phba->hbalock, iflag);
10997 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
10998 if (lpfc_readl(phba->HCregaddr, &control))
11000 control &= ~HC_LAINT_ENA;
11001 writel(control, phba->HCregaddr);
11002 readl(phba->HCregaddr); /* flush */
11003 spin_unlock_irqrestore(&phba->hbalock, iflag);
11006 work_ha_copy &= ~HA_LATT;
11009 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
11011 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
11012 * the only slow ring.
11014 status = (work_ha_copy &
11015 (HA_RXMASK << (4*LPFC_ELS_RING)));
11016 status >>= (4*LPFC_ELS_RING);
11017 if (status & HA_RXMASK) {
11018 spin_lock_irqsave(&phba->hbalock, iflag);
11019 if (lpfc_readl(phba->HCregaddr, &control))
11022 lpfc_debugfs_slow_ring_trc(phba,
11023 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
11025 (uint32_t)phba->sli.slistat.sli_intr);
11027 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
11028 lpfc_debugfs_slow_ring_trc(phba,
11029 "ISR Disable ring:"
11030 "pwork:x%x hawork:x%x wait:x%x",
11031 phba->work_ha, work_ha_copy,
11032 (uint32_t)((unsigned long)
11033 &phba->work_waitq));
11036 ~(HC_R0INT_ENA << LPFC_ELS_RING);
11037 writel(control, phba->HCregaddr);
11038 readl(phba->HCregaddr); /* flush */
11041 lpfc_debugfs_slow_ring_trc(phba,
11042 "ISR slow ring: pwork:"
11043 "x%x hawork:x%x wait:x%x",
11044 phba->work_ha, work_ha_copy,
11045 (uint32_t)((unsigned long)
11046 &phba->work_waitq));
11048 spin_unlock_irqrestore(&phba->hbalock, iflag);
11051 spin_lock_irqsave(&phba->hbalock, iflag);
11052 if (work_ha_copy & HA_ERATT) {
11053 if (lpfc_sli_read_hs(phba))
11056 * Check if there is a deferred error condition
11059 if ((HS_FFER1 & phba->work_hs) &&
11060 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
11061 HS_FFER6 | HS_FFER7 | HS_FFER8) &
11063 phba->hba_flag |= DEFER_ERATT;
11064 /* Clear all interrupt enable conditions */
11065 writel(0, phba->HCregaddr);
11066 readl(phba->HCregaddr);
11070 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
11071 pmb = phba->sli.mbox_active;
11072 pmbox = &pmb->u.mb;
11074 vport = pmb->vport;
11076 /* First check out the status word */
11077 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
11078 if (pmbox->mbxOwner != OWN_HOST) {
11079 spin_unlock_irqrestore(&phba->hbalock, iflag);
11081 * Stray Mailbox Interrupt, mbxCommand <cmd>
11082 * mbxStatus <status>
11084 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
11086 "(%d):0304 Stray Mailbox "
11087 "Interrupt mbxCommand x%x "
11089 (vport ? vport->vpi : 0),
11092 /* clear mailbox attention bit */
11093 work_ha_copy &= ~HA_MBATT;
11095 phba->sli.mbox_active = NULL;
11096 spin_unlock_irqrestore(&phba->hbalock, iflag);
11097 phba->last_completion_time = jiffies;
11098 del_timer(&phba->sli.mbox_tmo);
11099 if (pmb->mbox_cmpl) {
11100 lpfc_sli_pcimem_bcopy(mbox, pmbox,
11102 if (pmb->out_ext_byte_len &&
11104 lpfc_sli_pcimem_bcopy(
11107 pmb->out_ext_byte_len);
11109 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
11110 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
11112 lpfc_debugfs_disc_trc(vport,
11113 LPFC_DISC_TRC_MBOX_VPORT,
11114 "MBOX dflt rpi: : "
11115 "status:x%x rpi:x%x",
11116 (uint32_t)pmbox->mbxStatus,
11117 pmbox->un.varWords[0], 0);
11119 if (!pmbox->mbxStatus) {
11120 mp = (struct lpfc_dmabuf *)
11122 ndlp = (struct lpfc_nodelist *)
11125 /* Reg_LOGIN of dflt RPI was
11126 * successful. new lets get
11127 * rid of the RPI using the
11128 * same mbox buffer.
11130 lpfc_unreg_login(phba,
11132 pmbox->un.varWords[0],
11135 lpfc_mbx_cmpl_dflt_rpi;
11136 pmb->context1 = mp;
11137 pmb->context2 = ndlp;
11138 pmb->vport = vport;
11139 rc = lpfc_sli_issue_mbox(phba,
11142 if (rc != MBX_BUSY)
11143 lpfc_printf_log(phba,
11145 LOG_MBOX | LOG_SLI,
11146 "0350 rc should have"
11147 "been MBX_BUSY\n");
11148 if (rc != MBX_NOT_FINISHED)
11149 goto send_current_mbox;
11153 &phba->pport->work_port_lock,
11155 phba->pport->work_port_events &=
11157 spin_unlock_irqrestore(
11158 &phba->pport->work_port_lock,
11160 lpfc_mbox_cmpl_put(phba, pmb);
11163 spin_unlock_irqrestore(&phba->hbalock, iflag);
11165 if ((work_ha_copy & HA_MBATT) &&
11166 (phba->sli.mbox_active == NULL)) {
11168 /* Process next mailbox command if there is one */
11170 rc = lpfc_sli_issue_mbox(phba, NULL,
11172 } while (rc == MBX_NOT_FINISHED);
11173 if (rc != MBX_SUCCESS)
11174 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
11175 LOG_SLI, "0349 rc should be "
11179 spin_lock_irqsave(&phba->hbalock, iflag);
11180 phba->work_ha |= work_ha_copy;
11181 spin_unlock_irqrestore(&phba->hbalock, iflag);
11182 lpfc_worker_wake_up(phba);
11184 return IRQ_HANDLED;
11186 spin_unlock_irqrestore(&phba->hbalock, iflag);
11187 return IRQ_HANDLED;
11189 } /* lpfc_sli_sp_intr_handler */
11192 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
11193 * @irq: Interrupt number.
11194 * @dev_id: The device context pointer.
11196 * This function is directly called from the PCI layer as an interrupt
11197 * service routine when device with SLI-3 interface spec is enabled with
11198 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
11199 * ring event in the HBA. However, when the device is enabled with either
11200 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
11201 * device-level interrupt handler. When the PCI slot is in error recovery
11202 * or the HBA is undergoing initialization, the interrupt handler will not
11203 * process the interrupt. The SCSI FCP fast-path ring event are handled in
11204 * the intrrupt context. This function is called without any lock held.
11205 * It gets the hbalock to access and update SLI data structures.
11207 * This function returns IRQ_HANDLED when interrupt is handled else it
11208 * returns IRQ_NONE.
11211 lpfc_sli_fp_intr_handler(int irq, void *dev_id)
11213 struct lpfc_hba *phba;
11215 unsigned long status;
11216 unsigned long iflag;
11218 /* Get the driver's phba structure from the dev_id and
11219 * assume the HBA is not interrupting.
11221 phba = (struct lpfc_hba *) dev_id;
11223 if (unlikely(!phba))
11227 * Stuff needs to be attented to when this function is invoked as an
11228 * individual interrupt handler in MSI-X multi-message interrupt mode
11230 if (phba->intr_type == MSIX) {
11231 /* Check device state for handling interrupt */
11232 if (lpfc_intr_state_check(phba))
11234 /* Need to read HA REG for FCP ring and other ring events */
11235 if (lpfc_readl(phba->HAregaddr, &ha_copy))
11236 return IRQ_HANDLED;
11237 /* Clear up only attention source related to fast-path */
11238 spin_lock_irqsave(&phba->hbalock, iflag);
11240 * If there is deferred error attention, do not check for
11243 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
11244 spin_unlock_irqrestore(&phba->hbalock, iflag);
11247 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
11249 readl(phba->HAregaddr); /* flush */
11250 spin_unlock_irqrestore(&phba->hbalock, iflag);
11252 ha_copy = phba->ha_copy;
11255 * Process all events on FCP ring. Take the optimized path for FCP IO.
11257 ha_copy &= ~(phba->work_ha_mask);
11259 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
11260 status >>= (4*LPFC_FCP_RING);
11261 if (status & HA_RXMASK)
11262 lpfc_sli_handle_fast_ring_event(phba,
11263 &phba->sli.ring[LPFC_FCP_RING],
11266 if (phba->cfg_multi_ring_support == 2) {
11268 * Process all events on extra ring. Take the optimized path
11269 * for extra ring IO.
11271 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
11272 status >>= (4*LPFC_EXTRA_RING);
11273 if (status & HA_RXMASK) {
11274 lpfc_sli_handle_fast_ring_event(phba,
11275 &phba->sli.ring[LPFC_EXTRA_RING],
11279 return IRQ_HANDLED;
11280 } /* lpfc_sli_fp_intr_handler */
11283 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
11284 * @irq: Interrupt number.
11285 * @dev_id: The device context pointer.
11287 * This function is the HBA device-level interrupt handler to device with
11288 * SLI-3 interface spec, called from the PCI layer when either MSI or
11289 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
11290 * requires driver attention. This function invokes the slow-path interrupt
11291 * attention handling function and fast-path interrupt attention handling
11292 * function in turn to process the relevant HBA attention events. This
11293 * function is called without any lock held. It gets the hbalock to access
11294 * and update SLI data structures.
11296 * This function returns IRQ_HANDLED when interrupt is handled, else it
11297 * returns IRQ_NONE.
11300 lpfc_sli_intr_handler(int irq, void *dev_id)
11302 struct lpfc_hba *phba;
11303 irqreturn_t sp_irq_rc, fp_irq_rc;
11304 unsigned long status1, status2;
11308 * Get the driver's phba structure from the dev_id and
11309 * assume the HBA is not interrupting.
11311 phba = (struct lpfc_hba *) dev_id;
11313 if (unlikely(!phba))
11316 /* Check device state for handling interrupt */
11317 if (lpfc_intr_state_check(phba))
11320 spin_lock(&phba->hbalock);
11321 if (lpfc_readl(phba->HAregaddr, &phba->ha_copy)) {
11322 spin_unlock(&phba->hbalock);
11323 return IRQ_HANDLED;
11326 if (unlikely(!phba->ha_copy)) {
11327 spin_unlock(&phba->hbalock);
11329 } else if (phba->ha_copy & HA_ERATT) {
11330 if (phba->hba_flag & HBA_ERATT_HANDLED)
11331 /* ERATT polling has handled ERATT */
11332 phba->ha_copy &= ~HA_ERATT;
11334 /* Indicate interrupt handler handles ERATT */
11335 phba->hba_flag |= HBA_ERATT_HANDLED;
11339 * If there is deferred error attention, do not check for any interrupt.
11341 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
11342 spin_unlock(&phba->hbalock);
11346 /* Clear attention sources except link and error attentions */
11347 if (lpfc_readl(phba->HCregaddr, &hc_copy)) {
11348 spin_unlock(&phba->hbalock);
11349 return IRQ_HANDLED;
11351 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
11352 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
11354 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
11355 writel(hc_copy, phba->HCregaddr);
11356 readl(phba->HAregaddr); /* flush */
11357 spin_unlock(&phba->hbalock);
11360 * Invokes slow-path host attention interrupt handling as appropriate.
11363 /* status of events with mailbox and link attention */
11364 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
11366 /* status of events with ELS ring */
11367 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
11368 status2 >>= (4*LPFC_ELS_RING);
11370 if (status1 || (status2 & HA_RXMASK))
11371 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
11373 sp_irq_rc = IRQ_NONE;
11376 * Invoke fast-path host attention interrupt handling as appropriate.
11379 /* status of events with FCP ring */
11380 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
11381 status1 >>= (4*LPFC_FCP_RING);
11383 /* status of events with extra ring */
11384 if (phba->cfg_multi_ring_support == 2) {
11385 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
11386 status2 >>= (4*LPFC_EXTRA_RING);
11390 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
11391 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
11393 fp_irq_rc = IRQ_NONE;
11395 /* Return device-level interrupt handling status */
11396 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
11397 } /* lpfc_sli_intr_handler */
11400 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
11401 * @phba: pointer to lpfc hba data structure.
11403 * This routine is invoked by the worker thread to process all the pending
11404 * SLI4 FCP abort XRI events.
11406 void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba)
11408 struct lpfc_cq_event *cq_event;
11410 /* First, declare the fcp xri abort event has been handled */
11411 spin_lock_irq(&phba->hbalock);
11412 phba->hba_flag &= ~FCP_XRI_ABORT_EVENT;
11413 spin_unlock_irq(&phba->hbalock);
11414 /* Now, handle all the fcp xri abort events */
11415 while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) {
11416 /* Get the first event from the head of the event queue */
11417 spin_lock_irq(&phba->hbalock);
11418 list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
11419 cq_event, struct lpfc_cq_event, list);
11420 spin_unlock_irq(&phba->hbalock);
11421 /* Notify aborted XRI for FCP work queue */
11422 lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
11423 /* Free the event processed back to the free pool */
11424 lpfc_sli4_cq_event_release(phba, cq_event);
11429 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
11430 * @phba: pointer to lpfc hba data structure.
11432 * This routine is invoked by the worker thread to process all the pending
11433 * SLI4 els abort xri events.
11435 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
11437 struct lpfc_cq_event *cq_event;
11439 /* First, declare the els xri abort event has been handled */
11440 spin_lock_irq(&phba->hbalock);
11441 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
11442 spin_unlock_irq(&phba->hbalock);
11443 /* Now, handle all the els xri abort events */
11444 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
11445 /* Get the first event from the head of the event queue */
11446 spin_lock_irq(&phba->hbalock);
11447 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
11448 cq_event, struct lpfc_cq_event, list);
11449 spin_unlock_irq(&phba->hbalock);
11450 /* Notify aborted XRI for ELS work queue */
11451 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
11452 /* Free the event processed back to the free pool */
11453 lpfc_sli4_cq_event_release(phba, cq_event);
11458 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
11459 * @phba: pointer to lpfc hba data structure
11460 * @pIocbIn: pointer to the rspiocbq
11461 * @pIocbOut: pointer to the cmdiocbq
11462 * @wcqe: pointer to the complete wcqe
11464 * This routine transfers the fields of a command iocbq to a response iocbq
11465 * by copying all the IOCB fields from command iocbq and transferring the
11466 * completion status information from the complete wcqe.
11469 lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
11470 struct lpfc_iocbq *pIocbIn,
11471 struct lpfc_iocbq *pIocbOut,
11472 struct lpfc_wcqe_complete *wcqe)
11475 unsigned long iflags;
11476 uint32_t status, max_response;
11477 struct lpfc_dmabuf *dmabuf;
11478 struct ulp_bde64 *bpl, bde;
11479 size_t offset = offsetof(struct lpfc_iocbq, iocb);
11481 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
11482 sizeof(struct lpfc_iocbq) - offset);
11483 /* Map WCQE parameters into irspiocb parameters */
11484 status = bf_get(lpfc_wcqe_c_status, wcqe);
11485 pIocbIn->iocb.ulpStatus = (status & LPFC_IOCB_STATUS_MASK);
11486 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
11487 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
11488 pIocbIn->iocb.un.fcpi.fcpi_parm =
11489 pIocbOut->iocb.un.fcpi.fcpi_parm -
11490 wcqe->total_data_placed;
11492 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
11494 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
11495 switch (pIocbOut->iocb.ulpCommand) {
11496 case CMD_ELS_REQUEST64_CR:
11497 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
11498 bpl = (struct ulp_bde64 *)dmabuf->virt;
11499 bde.tus.w = le32_to_cpu(bpl[1].tus.w);
11500 max_response = bde.tus.f.bdeSize;
11502 case CMD_GEN_REQUEST64_CR:
11504 if (!pIocbOut->context3)
11506 numBdes = pIocbOut->iocb.un.genreq64.bdl.bdeSize/
11507 sizeof(struct ulp_bde64);
11508 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
11509 bpl = (struct ulp_bde64 *)dmabuf->virt;
11510 for (i = 0; i < numBdes; i++) {
11511 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
11512 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
11513 max_response += bde.tus.f.bdeSize;
11517 max_response = wcqe->total_data_placed;
11520 if (max_response < wcqe->total_data_placed)
11521 pIocbIn->iocb.un.genreq64.bdl.bdeSize = max_response;
11523 pIocbIn->iocb.un.genreq64.bdl.bdeSize =
11524 wcqe->total_data_placed;
11527 /* Convert BG errors for completion status */
11528 if (status == CQE_STATUS_DI_ERROR) {
11529 pIocbIn->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
11531 if (bf_get(lpfc_wcqe_c_bg_edir, wcqe))
11532 pIocbIn->iocb.un.ulpWord[4] = IOERR_RX_DMA_FAILED;
11534 pIocbIn->iocb.un.ulpWord[4] = IOERR_TX_DMA_FAILED;
11536 pIocbIn->iocb.unsli3.sli3_bg.bgstat = 0;
11537 if (bf_get(lpfc_wcqe_c_bg_ge, wcqe)) /* Guard Check failed */
11538 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11539 BGS_GUARD_ERR_MASK;
11540 if (bf_get(lpfc_wcqe_c_bg_ae, wcqe)) /* App Tag Check failed */
11541 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11542 BGS_APPTAG_ERR_MASK;
11543 if (bf_get(lpfc_wcqe_c_bg_re, wcqe)) /* Ref Tag Check failed */
11544 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11545 BGS_REFTAG_ERR_MASK;
11547 /* Check to see if there was any good data before the error */
11548 if (bf_get(lpfc_wcqe_c_bg_tdpv, wcqe)) {
11549 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11550 BGS_HI_WATER_MARK_PRESENT_MASK;
11551 pIocbIn->iocb.unsli3.sli3_bg.bghm =
11552 wcqe->total_data_placed;
11556 * Set ALL the error bits to indicate we don't know what
11557 * type of error it is.
11559 if (!pIocbIn->iocb.unsli3.sli3_bg.bgstat)
11560 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11561 (BGS_REFTAG_ERR_MASK | BGS_APPTAG_ERR_MASK |
11562 BGS_GUARD_ERR_MASK);
11565 /* Pick up HBA exchange busy condition */
11566 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
11567 spin_lock_irqsave(&phba->hbalock, iflags);
11568 pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY;
11569 spin_unlock_irqrestore(&phba->hbalock, iflags);
11574 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
11575 * @phba: Pointer to HBA context object.
11576 * @wcqe: Pointer to work-queue completion queue entry.
11578 * This routine handles an ELS work-queue completion event and construct
11579 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
11580 * discovery engine to handle.
11582 * Return: Pointer to the receive IOCBQ, NULL otherwise.
11584 static struct lpfc_iocbq *
11585 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
11586 struct lpfc_iocbq *irspiocbq)
11588 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
11589 struct lpfc_iocbq *cmdiocbq;
11590 struct lpfc_wcqe_complete *wcqe;
11591 unsigned long iflags;
11593 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
11594 spin_lock_irqsave(&pring->ring_lock, iflags);
11595 pring->stats.iocb_event++;
11596 /* Look up the ELS command IOCB and create pseudo response IOCB */
11597 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
11598 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11599 spin_unlock_irqrestore(&pring->ring_lock, iflags);
11601 if (unlikely(!cmdiocbq)) {
11602 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11603 "0386 ELS complete with no corresponding "
11604 "cmdiocb: iotag (%d)\n",
11605 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11606 lpfc_sli_release_iocbq(phba, irspiocbq);
11610 /* Fake the irspiocbq and copy necessary response information */
11611 lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe);
11617 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
11618 * @phba: Pointer to HBA context object.
11619 * @cqe: Pointer to mailbox completion queue entry.
11621 * This routine process a mailbox completion queue entry with asynchrous
11624 * Return: true if work posted to worker thread, otherwise false.
11627 lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
11629 struct lpfc_cq_event *cq_event;
11630 unsigned long iflags;
11632 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11633 "0392 Async Event: word0:x%x, word1:x%x, "
11634 "word2:x%x, word3:x%x\n", mcqe->word0,
11635 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
11637 /* Allocate a new internal CQ_EVENT entry */
11638 cq_event = lpfc_sli4_cq_event_alloc(phba);
11640 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11641 "0394 Failed to allocate CQ_EVENT entry\n");
11645 /* Move the CQE into an asynchronous event entry */
11646 memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe));
11647 spin_lock_irqsave(&phba->hbalock, iflags);
11648 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
11649 /* Set the async event flag */
11650 phba->hba_flag |= ASYNC_EVENT;
11651 spin_unlock_irqrestore(&phba->hbalock, iflags);
11657 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
11658 * @phba: Pointer to HBA context object.
11659 * @cqe: Pointer to mailbox completion queue entry.
11661 * This routine process a mailbox completion queue entry with mailbox
11662 * completion event.
11664 * Return: true if work posted to worker thread, otherwise false.
11667 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
11669 uint32_t mcqe_status;
11670 MAILBOX_t *mbox, *pmbox;
11671 struct lpfc_mqe *mqe;
11672 struct lpfc_vport *vport;
11673 struct lpfc_nodelist *ndlp;
11674 struct lpfc_dmabuf *mp;
11675 unsigned long iflags;
11677 bool workposted = false;
11680 /* If not a mailbox complete MCQE, out by checking mailbox consume */
11681 if (!bf_get(lpfc_trailer_completed, mcqe))
11682 goto out_no_mqe_complete;
11684 /* Get the reference to the active mbox command */
11685 spin_lock_irqsave(&phba->hbalock, iflags);
11686 pmb = phba->sli.mbox_active;
11687 if (unlikely(!pmb)) {
11688 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
11689 "1832 No pending MBOX command to handle\n");
11690 spin_unlock_irqrestore(&phba->hbalock, iflags);
11691 goto out_no_mqe_complete;
11693 spin_unlock_irqrestore(&phba->hbalock, iflags);
11695 pmbox = (MAILBOX_t *)&pmb->u.mqe;
11697 vport = pmb->vport;
11699 /* Reset heartbeat timer */
11700 phba->last_completion_time = jiffies;
11701 del_timer(&phba->sli.mbox_tmo);
11703 /* Move mbox data to caller's mailbox region, do endian swapping */
11704 if (pmb->mbox_cmpl && mbox)
11705 lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
11708 * For mcqe errors, conditionally move a modified error code to
11709 * the mbox so that the error will not be missed.
11711 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
11712 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
11713 if (bf_get(lpfc_mqe_status, mqe) == MBX_SUCCESS)
11714 bf_set(lpfc_mqe_status, mqe,
11715 (LPFC_MBX_ERROR_RANGE | mcqe_status));
11717 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
11718 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
11719 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
11720 "MBOX dflt rpi: status:x%x rpi:x%x",
11722 pmbox->un.varWords[0], 0);
11723 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
11724 mp = (struct lpfc_dmabuf *)(pmb->context1);
11725 ndlp = (struct lpfc_nodelist *)pmb->context2;
11726 /* Reg_LOGIN of dflt RPI was successful. Now lets get
11727 * RID of the PPI using the same mbox buffer.
11729 lpfc_unreg_login(phba, vport->vpi,
11730 pmbox->un.varWords[0], pmb);
11731 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
11732 pmb->context1 = mp;
11733 pmb->context2 = ndlp;
11734 pmb->vport = vport;
11735 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
11736 if (rc != MBX_BUSY)
11737 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
11738 LOG_SLI, "0385 rc should "
11739 "have been MBX_BUSY\n");
11740 if (rc != MBX_NOT_FINISHED)
11741 goto send_current_mbox;
11744 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
11745 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
11746 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
11748 /* There is mailbox completion work to do */
11749 spin_lock_irqsave(&phba->hbalock, iflags);
11750 __lpfc_mbox_cmpl_put(phba, pmb);
11751 phba->work_ha |= HA_MBATT;
11752 spin_unlock_irqrestore(&phba->hbalock, iflags);
11756 spin_lock_irqsave(&phba->hbalock, iflags);
11757 /* Release the mailbox command posting token */
11758 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
11759 /* Setting active mailbox pointer need to be in sync to flag clear */
11760 phba->sli.mbox_active = NULL;
11761 spin_unlock_irqrestore(&phba->hbalock, iflags);
11762 /* Wake up worker thread to post the next pending mailbox command */
11763 lpfc_worker_wake_up(phba);
11764 out_no_mqe_complete:
11765 if (bf_get(lpfc_trailer_consumed, mcqe))
11766 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
11771 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
11772 * @phba: Pointer to HBA context object.
11773 * @cqe: Pointer to mailbox completion queue entry.
11775 * This routine process a mailbox completion queue entry, it invokes the
11776 * proper mailbox complete handling or asynchrous event handling routine
11777 * according to the MCQE's async bit.
11779 * Return: true if work posted to worker thread, otherwise false.
11782 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
11784 struct lpfc_mcqe mcqe;
11787 /* Copy the mailbox MCQE and convert endian order as needed */
11788 lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
11790 /* Invoke the proper event handling routine */
11791 if (!bf_get(lpfc_trailer_async, &mcqe))
11792 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
11794 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
11799 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
11800 * @phba: Pointer to HBA context object.
11801 * @cq: Pointer to associated CQ
11802 * @wcqe: Pointer to work-queue completion queue entry.
11804 * This routine handles an ELS work-queue completion event.
11806 * Return: true if work posted to worker thread, otherwise false.
11809 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11810 struct lpfc_wcqe_complete *wcqe)
11812 struct lpfc_iocbq *irspiocbq;
11813 unsigned long iflags;
11814 struct lpfc_sli_ring *pring = cq->pring;
11816 int txcmplq_cnt = 0;
11817 int fcp_txcmplq_cnt = 0;
11819 /* Get an irspiocbq for later ELS response processing use */
11820 irspiocbq = lpfc_sli_get_iocbq(phba);
11822 if (!list_empty(&pring->txq))
11824 if (!list_empty(&pring->txcmplq))
11826 if (!list_empty(&phba->sli.ring[LPFC_FCP_RING].txcmplq))
11828 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11829 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
11830 "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n",
11831 txq_cnt, phba->iocb_cnt,
11837 /* Save off the slow-path queue event for work thread to process */
11838 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
11839 spin_lock_irqsave(&phba->hbalock, iflags);
11840 list_add_tail(&irspiocbq->cq_event.list,
11841 &phba->sli4_hba.sp_queue_event);
11842 phba->hba_flag |= HBA_SP_QUEUE_EVT;
11843 spin_unlock_irqrestore(&phba->hbalock, iflags);
11849 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
11850 * @phba: Pointer to HBA context object.
11851 * @wcqe: Pointer to work-queue completion queue entry.
11853 * This routine handles slow-path WQ entry comsumed event by invoking the
11854 * proper WQ release routine to the slow-path WQ.
11857 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
11858 struct lpfc_wcqe_release *wcqe)
11860 /* sanity check on queue memory */
11861 if (unlikely(!phba->sli4_hba.els_wq))
11863 /* Check for the slow-path ELS work queue */
11864 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
11865 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
11866 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
11868 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11869 "2579 Slow-path wqe consume event carries "
11870 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
11871 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
11872 phba->sli4_hba.els_wq->queue_id);
11876 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
11877 * @phba: Pointer to HBA context object.
11878 * @cq: Pointer to a WQ completion queue.
11879 * @wcqe: Pointer to work-queue completion queue entry.
11881 * This routine handles an XRI abort event.
11883 * Return: true if work posted to worker thread, otherwise false.
11886 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
11887 struct lpfc_queue *cq,
11888 struct sli4_wcqe_xri_aborted *wcqe)
11890 bool workposted = false;
11891 struct lpfc_cq_event *cq_event;
11892 unsigned long iflags;
11894 /* Allocate a new internal CQ_EVENT entry */
11895 cq_event = lpfc_sli4_cq_event_alloc(phba);
11897 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11898 "0602 Failed to allocate CQ_EVENT entry\n");
11902 /* Move the CQE into the proper xri abort event list */
11903 memcpy(&cq_event->cqe, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
11904 switch (cq->subtype) {
11906 spin_lock_irqsave(&phba->hbalock, iflags);
11907 list_add_tail(&cq_event->list,
11908 &phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
11909 /* Set the fcp xri abort event flag */
11910 phba->hba_flag |= FCP_XRI_ABORT_EVENT;
11911 spin_unlock_irqrestore(&phba->hbalock, iflags);
11915 spin_lock_irqsave(&phba->hbalock, iflags);
11916 list_add_tail(&cq_event->list,
11917 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
11918 /* Set the els xri abort event flag */
11919 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
11920 spin_unlock_irqrestore(&phba->hbalock, iflags);
11924 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11925 "0603 Invalid work queue CQE subtype (x%x)\n",
11927 workposted = false;
11934 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
11935 * @phba: Pointer to HBA context object.
11936 * @rcqe: Pointer to receive-queue completion queue entry.
11938 * This routine process a receive-queue completion queue entry.
11940 * Return: true if work posted to worker thread, otherwise false.
11943 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
11945 bool workposted = false;
11946 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
11947 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
11948 struct hbq_dmabuf *dma_buf;
11949 uint32_t status, rq_id;
11950 unsigned long iflags;
11952 /* sanity check on queue memory */
11953 if (unlikely(!hrq) || unlikely(!drq))
11956 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
11957 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
11959 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
11960 if (rq_id != hrq->queue_id)
11963 status = bf_get(lpfc_rcqe_status, rcqe);
11965 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
11966 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11967 "2537 Receive Frame Truncated!!\n");
11968 hrq->RQ_buf_trunc++;
11969 case FC_STATUS_RQ_SUCCESS:
11970 lpfc_sli4_rq_release(hrq, drq);
11971 spin_lock_irqsave(&phba->hbalock, iflags);
11972 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
11974 hrq->RQ_no_buf_found++;
11975 spin_unlock_irqrestore(&phba->hbalock, iflags);
11979 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
11980 /* save off the frame for the word thread to process */
11981 list_add_tail(&dma_buf->cq_event.list,
11982 &phba->sli4_hba.sp_queue_event);
11983 /* Frame received */
11984 phba->hba_flag |= HBA_SP_QUEUE_EVT;
11985 spin_unlock_irqrestore(&phba->hbalock, iflags);
11988 case FC_STATUS_INSUFF_BUF_NEED_BUF:
11989 case FC_STATUS_INSUFF_BUF_FRM_DISC:
11990 hrq->RQ_no_posted_buf++;
11991 /* Post more buffers if possible */
11992 spin_lock_irqsave(&phba->hbalock, iflags);
11993 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
11994 spin_unlock_irqrestore(&phba->hbalock, iflags);
12003 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
12004 * @phba: Pointer to HBA context object.
12005 * @cq: Pointer to the completion queue.
12006 * @wcqe: Pointer to a completion queue entry.
12008 * This routine process a slow-path work-queue or receive queue completion queue
12011 * Return: true if work posted to worker thread, otherwise false.
12014 lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
12015 struct lpfc_cqe *cqe)
12017 struct lpfc_cqe cqevt;
12018 bool workposted = false;
12020 /* Copy the work queue CQE and convert endian order if needed */
12021 lpfc_sli_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
12023 /* Check and process for different type of WCQE and dispatch */
12024 switch (bf_get(lpfc_cqe_code, &cqevt)) {
12025 case CQE_CODE_COMPL_WQE:
12026 /* Process the WQ/RQ complete event */
12027 phba->last_completion_time = jiffies;
12028 workposted = lpfc_sli4_sp_handle_els_wcqe(phba, cq,
12029 (struct lpfc_wcqe_complete *)&cqevt);
12031 case CQE_CODE_RELEASE_WQE:
12032 /* Process the WQ release event */
12033 lpfc_sli4_sp_handle_rel_wcqe(phba,
12034 (struct lpfc_wcqe_release *)&cqevt);
12036 case CQE_CODE_XRI_ABORTED:
12037 /* Process the WQ XRI abort event */
12038 phba->last_completion_time = jiffies;
12039 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
12040 (struct sli4_wcqe_xri_aborted *)&cqevt);
12042 case CQE_CODE_RECEIVE:
12043 case CQE_CODE_RECEIVE_V1:
12044 /* Process the RQ event */
12045 phba->last_completion_time = jiffies;
12046 workposted = lpfc_sli4_sp_handle_rcqe(phba,
12047 (struct lpfc_rcqe *)&cqevt);
12050 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12051 "0388 Not a valid WCQE code: x%x\n",
12052 bf_get(lpfc_cqe_code, &cqevt));
12059 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
12060 * @phba: Pointer to HBA context object.
12061 * @eqe: Pointer to fast-path event queue entry.
12063 * This routine process a event queue entry from the slow-path event queue.
12064 * It will check the MajorCode and MinorCode to determine this is for a
12065 * completion event on a completion queue, if not, an error shall be logged
12066 * and just return. Otherwise, it will get to the corresponding completion
12067 * queue and process all the entries on that completion queue, rearm the
12068 * completion queue, and then return.
12072 lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
12073 struct lpfc_queue *speq)
12075 struct lpfc_queue *cq = NULL, *childq;
12076 struct lpfc_cqe *cqe;
12077 bool workposted = false;
12081 /* Get the reference to the corresponding CQ */
12082 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
12084 list_for_each_entry(childq, &speq->child_list, list) {
12085 if (childq->queue_id == cqid) {
12090 if (unlikely(!cq)) {
12091 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
12092 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12093 "0365 Slow-path CQ identifier "
12094 "(%d) does not exist\n", cqid);
12098 /* Process all the entries to the CQ */
12099 switch (cq->type) {
12101 while ((cqe = lpfc_sli4_cq_get(cq))) {
12102 workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe);
12103 if (!(++ecount % cq->entry_repost))
12104 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
12109 while ((cqe = lpfc_sli4_cq_get(cq))) {
12110 if (cq->subtype == LPFC_FCP)
12111 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq,
12114 workposted |= lpfc_sli4_sp_handle_cqe(phba, cq,
12116 if (!(++ecount % cq->entry_repost))
12117 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
12120 /* Track the max number of CQEs processed in 1 EQ */
12121 if (ecount > cq->CQ_max_cqe)
12122 cq->CQ_max_cqe = ecount;
12125 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12126 "0370 Invalid completion queue type (%d)\n",
12131 /* Catch the no cq entry condition, log an error */
12132 if (unlikely(ecount == 0))
12133 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12134 "0371 No entry from the CQ: identifier "
12135 "(x%x), type (%d)\n", cq->queue_id, cq->type);
12137 /* In any case, flash and re-arm the RCQ */
12138 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
12140 /* wake up worker thread if there are works to be done */
12142 lpfc_worker_wake_up(phba);
12146 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
12147 * @phba: Pointer to HBA context object.
12148 * @cq: Pointer to associated CQ
12149 * @wcqe: Pointer to work-queue completion queue entry.
12151 * This routine process a fast-path work queue completion entry from fast-path
12152 * event queue for FCP command response completion.
12155 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
12156 struct lpfc_wcqe_complete *wcqe)
12158 struct lpfc_sli_ring *pring = cq->pring;
12159 struct lpfc_iocbq *cmdiocbq;
12160 struct lpfc_iocbq irspiocbq;
12161 unsigned long iflags;
12163 /* Check for response status */
12164 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
12165 /* If resource errors reported from HBA, reduce queue
12166 * depth of the SCSI device.
12168 if (((bf_get(lpfc_wcqe_c_status, wcqe) ==
12169 IOSTAT_LOCAL_REJECT)) &&
12170 ((wcqe->parameter & IOERR_PARAM_MASK) ==
12171 IOERR_NO_RESOURCES))
12172 phba->lpfc_rampdown_queue_depth(phba);
12174 /* Log the error status */
12175 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12176 "0373 FCP complete error: status=x%x, "
12177 "hw_status=x%x, total_data_specified=%d, "
12178 "parameter=x%x, word3=x%x\n",
12179 bf_get(lpfc_wcqe_c_status, wcqe),
12180 bf_get(lpfc_wcqe_c_hw_status, wcqe),
12181 wcqe->total_data_placed, wcqe->parameter,
12185 /* Look up the FCP command IOCB and create pseudo response IOCB */
12186 spin_lock_irqsave(&pring->ring_lock, iflags);
12187 pring->stats.iocb_event++;
12188 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
12189 bf_get(lpfc_wcqe_c_request_tag, wcqe));
12190 spin_unlock_irqrestore(&pring->ring_lock, iflags);
12191 if (unlikely(!cmdiocbq)) {
12192 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12193 "0374 FCP complete with no corresponding "
12194 "cmdiocb: iotag (%d)\n",
12195 bf_get(lpfc_wcqe_c_request_tag, wcqe));
12198 if (unlikely(!cmdiocbq->iocb_cmpl)) {
12199 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12200 "0375 FCP cmdiocb not callback function "
12202 bf_get(lpfc_wcqe_c_request_tag, wcqe));
12206 /* Fake the irspiocb and copy necessary response information */
12207 lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
12209 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
12210 spin_lock_irqsave(&phba->hbalock, iflags);
12211 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
12212 spin_unlock_irqrestore(&phba->hbalock, iflags);
12215 /* Pass the cmd_iocb and the rsp state to the upper layer */
12216 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
12220 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
12221 * @phba: Pointer to HBA context object.
12222 * @cq: Pointer to completion queue.
12223 * @wcqe: Pointer to work-queue completion queue entry.
12225 * This routine handles an fast-path WQ entry comsumed event by invoking the
12226 * proper WQ release routine to the slow-path WQ.
12229 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
12230 struct lpfc_wcqe_release *wcqe)
12232 struct lpfc_queue *childwq;
12233 bool wqid_matched = false;
12236 /* Check for fast-path FCP work queue release */
12237 fcp_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
12238 list_for_each_entry(childwq, &cq->child_list, list) {
12239 if (childwq->queue_id == fcp_wqid) {
12240 lpfc_sli4_wq_release(childwq,
12241 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
12242 wqid_matched = true;
12246 /* Report warning log message if no match found */
12247 if (wqid_matched != true)
12248 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12249 "2580 Fast-path wqe consume event carries "
12250 "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid);
12254 * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry
12255 * @cq: Pointer to the completion queue.
12256 * @eqe: Pointer to fast-path completion queue entry.
12258 * This routine process a fast-path work queue completion entry from fast-path
12259 * event queue for FCP command response completion.
12262 lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
12263 struct lpfc_cqe *cqe)
12265 struct lpfc_wcqe_release wcqe;
12266 bool workposted = false;
12268 /* Copy the work queue CQE and convert endian order if needed */
12269 lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
12271 /* Check and process for different type of WCQE and dispatch */
12272 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
12273 case CQE_CODE_COMPL_WQE:
12275 /* Process the WQ complete event */
12276 phba->last_completion_time = jiffies;
12277 lpfc_sli4_fp_handle_fcp_wcqe(phba, cq,
12278 (struct lpfc_wcqe_complete *)&wcqe);
12280 case CQE_CODE_RELEASE_WQE:
12281 cq->CQ_release_wqe++;
12282 /* Process the WQ release event */
12283 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
12284 (struct lpfc_wcqe_release *)&wcqe);
12286 case CQE_CODE_XRI_ABORTED:
12287 cq->CQ_xri_aborted++;
12288 /* Process the WQ XRI abort event */
12289 phba->last_completion_time = jiffies;
12290 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
12291 (struct sli4_wcqe_xri_aborted *)&wcqe);
12294 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12295 "0144 Not a valid WCQE code: x%x\n",
12296 bf_get(lpfc_wcqe_c_code, &wcqe));
12303 * lpfc_sli4_hba_handle_eqe - Process a fast-path event queue entry
12304 * @phba: Pointer to HBA context object.
12305 * @eqe: Pointer to fast-path event queue entry.
12307 * This routine process a event queue entry from the fast-path event queue.
12308 * It will check the MajorCode and MinorCode to determine this is for a
12309 * completion event on a completion queue, if not, an error shall be logged
12310 * and just return. Otherwise, it will get to the corresponding completion
12311 * queue and process all the entries on the completion queue, rearm the
12312 * completion queue, and then return.
12315 lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
12318 struct lpfc_queue *cq;
12319 struct lpfc_cqe *cqe;
12320 bool workposted = false;
12324 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
12325 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12326 "0366 Not a valid completion "
12327 "event: majorcode=x%x, minorcode=x%x\n",
12328 bf_get_le32(lpfc_eqe_major_code, eqe),
12329 bf_get_le32(lpfc_eqe_minor_code, eqe));
12333 /* Get the reference to the corresponding CQ */
12334 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
12336 /* Check if this is a Slow path event */
12337 if (unlikely(cqid != phba->sli4_hba.fcp_cq_map[qidx])) {
12338 lpfc_sli4_sp_handle_eqe(phba, eqe,
12339 phba->sli4_hba.hba_eq[qidx]);
12343 if (unlikely(!phba->sli4_hba.fcp_cq)) {
12344 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12345 "3146 Fast-path completion queues "
12346 "does not exist\n");
12349 cq = phba->sli4_hba.fcp_cq[qidx];
12350 if (unlikely(!cq)) {
12351 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
12352 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12353 "0367 Fast-path completion queue "
12354 "(%d) does not exist\n", qidx);
12358 if (unlikely(cqid != cq->queue_id)) {
12359 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12360 "0368 Miss-matched fast-path completion "
12361 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
12362 cqid, cq->queue_id);
12366 /* Process all the entries to the CQ */
12367 while ((cqe = lpfc_sli4_cq_get(cq))) {
12368 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe);
12369 if (!(++ecount % cq->entry_repost))
12370 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
12373 /* Track the max number of CQEs processed in 1 EQ */
12374 if (ecount > cq->CQ_max_cqe)
12375 cq->CQ_max_cqe = ecount;
12377 /* Catch the no cq entry condition */
12378 if (unlikely(ecount == 0))
12379 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12380 "0369 No entry from fast-path completion "
12381 "queue fcpcqid=%d\n", cq->queue_id);
12383 /* In any case, flash and re-arm the CQ */
12384 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
12386 /* wake up worker thread if there are works to be done */
12388 lpfc_worker_wake_up(phba);
12392 lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
12394 struct lpfc_eqe *eqe;
12396 /* walk all the EQ entries and drop on the floor */
12397 while ((eqe = lpfc_sli4_eq_get(eq)))
12400 /* Clear and re-arm the EQ */
12401 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
12406 * lpfc_sli4_fof_handle_eqe - Process a Flash Optimized Fabric event queue
12408 * @phba: Pointer to HBA context object.
12409 * @eqe: Pointer to fast-path event queue entry.
12411 * This routine process a event queue entry from the Flash Optimized Fabric
12412 * event queue. It will check the MajorCode and MinorCode to determine this
12413 * is for a completion event on a completion queue, if not, an error shall be
12414 * logged and just return. Otherwise, it will get to the corresponding
12415 * completion queue and process all the entries on the completion queue, rearm
12416 * the completion queue, and then return.
12419 lpfc_sli4_fof_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe)
12421 struct lpfc_queue *cq;
12422 struct lpfc_cqe *cqe;
12423 bool workposted = false;
12427 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
12428 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12429 "9147 Not a valid completion "
12430 "event: majorcode=x%x, minorcode=x%x\n",
12431 bf_get_le32(lpfc_eqe_major_code, eqe),
12432 bf_get_le32(lpfc_eqe_minor_code, eqe));
12436 /* Get the reference to the corresponding CQ */
12437 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
12439 /* Next check for OAS */
12440 cq = phba->sli4_hba.oas_cq;
12441 if (unlikely(!cq)) {
12442 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
12443 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12444 "9148 OAS completion queue "
12445 "does not exist\n");
12449 if (unlikely(cqid != cq->queue_id)) {
12450 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12451 "9149 Miss-matched fast-path compl "
12452 "queue id: eqcqid=%d, fcpcqid=%d\n",
12453 cqid, cq->queue_id);
12457 /* Process all the entries to the OAS CQ */
12458 while ((cqe = lpfc_sli4_cq_get(cq))) {
12459 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe);
12460 if (!(++ecount % cq->entry_repost))
12461 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
12464 /* Track the max number of CQEs processed in 1 EQ */
12465 if (ecount > cq->CQ_max_cqe)
12466 cq->CQ_max_cqe = ecount;
12468 /* Catch the no cq entry condition */
12469 if (unlikely(ecount == 0))
12470 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12471 "9153 No entry from fast-path completion "
12472 "queue fcpcqid=%d\n", cq->queue_id);
12474 /* In any case, flash and re-arm the CQ */
12475 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
12477 /* wake up worker thread if there are works to be done */
12479 lpfc_worker_wake_up(phba);
12483 * lpfc_sli4_fof_intr_handler - HBA interrupt handler to SLI-4 device
12484 * @irq: Interrupt number.
12485 * @dev_id: The device context pointer.
12487 * This function is directly called from the PCI layer as an interrupt
12488 * service routine when device with SLI-4 interface spec is enabled with
12489 * MSI-X multi-message interrupt mode and there is a Flash Optimized Fabric
12490 * IOCB ring event in the HBA. However, when the device is enabled with either
12491 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
12492 * device-level interrupt handler. When the PCI slot is in error recovery
12493 * or the HBA is undergoing initialization, the interrupt handler will not
12494 * process the interrupt. The Flash Optimized Fabric ring event are handled in
12495 * the intrrupt context. This function is called without any lock held.
12496 * It gets the hbalock to access and update SLI data structures. Note that,
12497 * the EQ to CQ are one-to-one map such that the EQ index is
12498 * equal to that of CQ index.
12500 * This function returns IRQ_HANDLED when interrupt is handled else it
12501 * returns IRQ_NONE.
12504 lpfc_sli4_fof_intr_handler(int irq, void *dev_id)
12506 struct lpfc_hba *phba;
12507 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
12508 struct lpfc_queue *eq;
12509 struct lpfc_eqe *eqe;
12510 unsigned long iflag;
12514 /* Get the driver's phba structure from the dev_id */
12515 fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id;
12516 phba = fcp_eq_hdl->phba;
12517 eqidx = fcp_eq_hdl->idx;
12519 if (unlikely(!phba))
12522 /* Get to the EQ struct associated with this vector */
12523 eq = phba->sli4_hba.fof_eq;
12527 /* Check device state for handling interrupt */
12528 if (unlikely(lpfc_intr_state_check(phba))) {
12530 /* Check again for link_state with lock held */
12531 spin_lock_irqsave(&phba->hbalock, iflag);
12532 if (phba->link_state < LPFC_LINK_DOWN)
12533 /* Flush, clear interrupt, and rearm the EQ */
12534 lpfc_sli4_eq_flush(phba, eq);
12535 spin_unlock_irqrestore(&phba->hbalock, iflag);
12540 * Process all the event on FCP fast-path EQ
12542 while ((eqe = lpfc_sli4_eq_get(eq))) {
12543 lpfc_sli4_fof_handle_eqe(phba, eqe);
12544 if (!(++ecount % eq->entry_repost))
12545 lpfc_sli4_eq_release(eq, LPFC_QUEUE_NOARM);
12546 eq->EQ_processed++;
12549 /* Track the max number of EQEs processed in 1 intr */
12550 if (ecount > eq->EQ_max_eqe)
12551 eq->EQ_max_eqe = ecount;
12554 if (unlikely(ecount == 0)) {
12557 if (phba->intr_type == MSIX)
12558 /* MSI-X treated interrupt served as no EQ share INT */
12559 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12560 "9145 MSI-X interrupt with no EQE\n");
12562 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12563 "9146 ISR interrupt with no EQE\n");
12564 /* Non MSI-X treated on interrupt as EQ share INT */
12568 /* Always clear and re-arm the fast-path EQ */
12569 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
12570 return IRQ_HANDLED;
12574 * lpfc_sli4_hba_intr_handler - HBA interrupt handler to SLI-4 device
12575 * @irq: Interrupt number.
12576 * @dev_id: The device context pointer.
12578 * This function is directly called from the PCI layer as an interrupt
12579 * service routine when device with SLI-4 interface spec is enabled with
12580 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
12581 * ring event in the HBA. However, when the device is enabled with either
12582 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
12583 * device-level interrupt handler. When the PCI slot is in error recovery
12584 * or the HBA is undergoing initialization, the interrupt handler will not
12585 * process the interrupt. The SCSI FCP fast-path ring event are handled in
12586 * the intrrupt context. This function is called without any lock held.
12587 * It gets the hbalock to access and update SLI data structures. Note that,
12588 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
12589 * equal to that of FCP CQ index.
12591 * The link attention and ELS ring attention events are handled
12592 * by the worker thread. The interrupt handler signals the worker thread
12593 * and returns for these events. This function is called without any lock
12594 * held. It gets the hbalock to access and update SLI data structures.
12596 * This function returns IRQ_HANDLED when interrupt is handled else it
12597 * returns IRQ_NONE.
12600 lpfc_sli4_hba_intr_handler(int irq, void *dev_id)
12602 struct lpfc_hba *phba;
12603 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
12604 struct lpfc_queue *fpeq;
12605 struct lpfc_eqe *eqe;
12606 unsigned long iflag;
12610 /* Get the driver's phba structure from the dev_id */
12611 fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id;
12612 phba = fcp_eq_hdl->phba;
12613 fcp_eqidx = fcp_eq_hdl->idx;
12615 if (unlikely(!phba))
12617 if (unlikely(!phba->sli4_hba.hba_eq))
12620 /* Get to the EQ struct associated with this vector */
12621 fpeq = phba->sli4_hba.hba_eq[fcp_eqidx];
12622 if (unlikely(!fpeq))
12625 if (lpfc_fcp_look_ahead) {
12626 if (atomic_dec_and_test(&fcp_eq_hdl->fcp_eq_in_use))
12627 lpfc_sli4_eq_clr_intr(fpeq);
12629 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12634 /* Check device state for handling interrupt */
12635 if (unlikely(lpfc_intr_state_check(phba))) {
12636 fpeq->EQ_badstate++;
12637 /* Check again for link_state with lock held */
12638 spin_lock_irqsave(&phba->hbalock, iflag);
12639 if (phba->link_state < LPFC_LINK_DOWN)
12640 /* Flush, clear interrupt, and rearm the EQ */
12641 lpfc_sli4_eq_flush(phba, fpeq);
12642 spin_unlock_irqrestore(&phba->hbalock, iflag);
12643 if (lpfc_fcp_look_ahead)
12644 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12649 * Process all the event on FCP fast-path EQ
12651 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
12655 lpfc_sli4_hba_handle_eqe(phba, eqe, fcp_eqidx);
12656 if (!(++ecount % fpeq->entry_repost))
12657 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM);
12658 fpeq->EQ_processed++;
12661 /* Track the max number of EQEs processed in 1 intr */
12662 if (ecount > fpeq->EQ_max_eqe)
12663 fpeq->EQ_max_eqe = ecount;
12665 /* Always clear and re-arm the fast-path EQ */
12666 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
12668 if (unlikely(ecount == 0)) {
12669 fpeq->EQ_no_entry++;
12671 if (lpfc_fcp_look_ahead) {
12672 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12676 if (phba->intr_type == MSIX)
12677 /* MSI-X treated interrupt served as no EQ share INT */
12678 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12679 "0358 MSI-X interrupt with no EQE\n");
12681 /* Non MSI-X treated on interrupt as EQ share INT */
12685 if (lpfc_fcp_look_ahead)
12686 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12687 return IRQ_HANDLED;
12688 } /* lpfc_sli4_fp_intr_handler */
12691 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
12692 * @irq: Interrupt number.
12693 * @dev_id: The device context pointer.
12695 * This function is the device-level interrupt handler to device with SLI-4
12696 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
12697 * interrupt mode is enabled and there is an event in the HBA which requires
12698 * driver attention. This function invokes the slow-path interrupt attention
12699 * handling function and fast-path interrupt attention handling function in
12700 * turn to process the relevant HBA attention events. This function is called
12701 * without any lock held. It gets the hbalock to access and update SLI data
12704 * This function returns IRQ_HANDLED when interrupt is handled, else it
12705 * returns IRQ_NONE.
12708 lpfc_sli4_intr_handler(int irq, void *dev_id)
12710 struct lpfc_hba *phba;
12711 irqreturn_t hba_irq_rc;
12712 bool hba_handled = false;
12715 /* Get the driver's phba structure from the dev_id */
12716 phba = (struct lpfc_hba *)dev_id;
12718 if (unlikely(!phba))
12722 * Invoke fast-path host attention interrupt handling as appropriate.
12724 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
12725 hba_irq_rc = lpfc_sli4_hba_intr_handler(irq,
12726 &phba->sli4_hba.fcp_eq_hdl[fcp_eqidx]);
12727 if (hba_irq_rc == IRQ_HANDLED)
12728 hba_handled |= true;
12731 if (phba->cfg_fof) {
12732 hba_irq_rc = lpfc_sli4_fof_intr_handler(irq,
12733 &phba->sli4_hba.fcp_eq_hdl[0]);
12734 if (hba_irq_rc == IRQ_HANDLED)
12735 hba_handled |= true;
12738 return (hba_handled == true) ? IRQ_HANDLED : IRQ_NONE;
12739 } /* lpfc_sli4_intr_handler */
12742 * lpfc_sli4_queue_free - free a queue structure and associated memory
12743 * @queue: The queue structure to free.
12745 * This function frees a queue structure and the DMAable memory used for
12746 * the host resident queue. This function must be called after destroying the
12747 * queue on the HBA.
12750 lpfc_sli4_queue_free(struct lpfc_queue *queue)
12752 struct lpfc_dmabuf *dmabuf;
12757 while (!list_empty(&queue->page_list)) {
12758 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
12760 dma_free_coherent(&queue->phba->pcidev->dev, SLI4_PAGE_SIZE,
12761 dmabuf->virt, dmabuf->phys);
12769 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
12770 * @phba: The HBA that this queue is being created on.
12771 * @entry_size: The size of each queue entry for this queue.
12772 * @entry count: The number of entries that this queue will handle.
12774 * This function allocates a queue structure and the DMAable memory used for
12775 * the host resident queue. This function must be called before creating the
12776 * queue on the HBA.
12778 struct lpfc_queue *
12779 lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size,
12780 uint32_t entry_count)
12782 struct lpfc_queue *queue;
12783 struct lpfc_dmabuf *dmabuf;
12784 int x, total_qe_count;
12786 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12788 if (!phba->sli4_hba.pc_sli4_params.supported)
12789 hw_page_size = SLI4_PAGE_SIZE;
12791 queue = kzalloc(sizeof(struct lpfc_queue) +
12792 (sizeof(union sli4_qe) * entry_count), GFP_KERNEL);
12795 queue->page_count = (ALIGN(entry_size * entry_count,
12796 hw_page_size))/hw_page_size;
12797 INIT_LIST_HEAD(&queue->list);
12798 INIT_LIST_HEAD(&queue->page_list);
12799 INIT_LIST_HEAD(&queue->child_list);
12800 for (x = 0, total_qe_count = 0; x < queue->page_count; x++) {
12801 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
12804 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
12805 hw_page_size, &dmabuf->phys,
12807 if (!dmabuf->virt) {
12811 dmabuf->buffer_tag = x;
12812 list_add_tail(&dmabuf->list, &queue->page_list);
12813 /* initialize queue's entry array */
12814 dma_pointer = dmabuf->virt;
12815 for (; total_qe_count < entry_count &&
12816 dma_pointer < (hw_page_size + dmabuf->virt);
12817 total_qe_count++, dma_pointer += entry_size) {
12818 queue->qe[total_qe_count].address = dma_pointer;
12821 queue->entry_size = entry_size;
12822 queue->entry_count = entry_count;
12825 * entry_repost is calculated based on the number of entries in the
12826 * queue. This works out except for RQs. If buffers are NOT initially
12827 * posted for every RQE, entry_repost should be adjusted accordingly.
12829 queue->entry_repost = (entry_count >> 3);
12830 if (queue->entry_repost < LPFC_QUEUE_MIN_REPOST)
12831 queue->entry_repost = LPFC_QUEUE_MIN_REPOST;
12832 queue->phba = phba;
12836 lpfc_sli4_queue_free(queue);
12841 * lpfc_dual_chute_pci_bar_map - Map pci base address register to host memory
12842 * @phba: HBA structure that indicates port to create a queue on.
12843 * @pci_barset: PCI BAR set flag.
12845 * This function shall perform iomap of the specified PCI BAR address to host
12846 * memory address if not already done so and return it. The returned host
12847 * memory address can be NULL.
12849 static void __iomem *
12850 lpfc_dual_chute_pci_bar_map(struct lpfc_hba *phba, uint16_t pci_barset)
12852 struct pci_dev *pdev;
12857 pdev = phba->pcidev;
12859 switch (pci_barset) {
12860 case WQ_PCI_BAR_0_AND_1:
12861 return phba->pci_bar0_memmap_p;
12862 case WQ_PCI_BAR_2_AND_3:
12863 return phba->pci_bar2_memmap_p;
12864 case WQ_PCI_BAR_4_AND_5:
12865 return phba->pci_bar4_memmap_p;
12873 * lpfc_modify_fcp_eq_delay - Modify Delay Multiplier on FCP EQs
12874 * @phba: HBA structure that indicates port to create a queue on.
12875 * @startq: The starting FCP EQ to modify
12877 * This function sends an MODIFY_EQ_DELAY mailbox command to the HBA.
12879 * The @phba struct is used to send mailbox command to HBA. The @startq
12880 * is used to get the starting FCP EQ to change.
12881 * This function is asynchronous and will wait for the mailbox
12882 * command to finish before continuing.
12884 * On success this function will return a zero. If unable to allocate enough
12885 * memory this function will return -ENOMEM. If the queue create mailbox command
12886 * fails this function will return -ENXIO.
12889 lpfc_modify_fcp_eq_delay(struct lpfc_hba *phba, uint32_t startq)
12891 struct lpfc_mbx_modify_eq_delay *eq_delay;
12892 LPFC_MBOXQ_t *mbox;
12893 struct lpfc_queue *eq;
12894 int cnt, rc, length, status = 0;
12895 uint32_t shdr_status, shdr_add_status;
12898 union lpfc_sli4_cfg_shdr *shdr;
12901 if (startq >= phba->cfg_fcp_io_channel)
12904 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12907 length = (sizeof(struct lpfc_mbx_modify_eq_delay) -
12908 sizeof(struct lpfc_sli4_cfg_mhdr));
12909 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12910 LPFC_MBOX_OPCODE_MODIFY_EQ_DELAY,
12911 length, LPFC_SLI4_MBX_EMBED);
12912 eq_delay = &mbox->u.mqe.un.eq_delay;
12914 /* Calculate delay multiper from maximum interrupt per second */
12915 result = phba->cfg_fcp_imax / phba->cfg_fcp_io_channel;
12916 if (result > LPFC_DMULT_CONST)
12919 dmult = LPFC_DMULT_CONST/result - 1;
12922 for (fcp_eqidx = startq; fcp_eqidx < phba->cfg_fcp_io_channel;
12924 eq = phba->sli4_hba.hba_eq[fcp_eqidx];
12927 eq_delay->u.request.eq[cnt].eq_id = eq->queue_id;
12928 eq_delay->u.request.eq[cnt].phase = 0;
12929 eq_delay->u.request.eq[cnt].delay_multi = dmult;
12931 if (cnt >= LPFC_MAX_EQ_DELAY)
12934 eq_delay->u.request.num_eq = cnt;
12936 mbox->vport = phba->pport;
12937 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12938 mbox->context1 = NULL;
12939 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12940 shdr = (union lpfc_sli4_cfg_shdr *) &eq_delay->header.cfg_shdr;
12941 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12942 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12943 if (shdr_status || shdr_add_status || rc) {
12944 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12945 "2512 MODIFY_EQ_DELAY mailbox failed with "
12946 "status x%x add_status x%x, mbx status x%x\n",
12947 shdr_status, shdr_add_status, rc);
12950 mempool_free(mbox, phba->mbox_mem_pool);
12955 * lpfc_eq_create - Create an Event Queue on the HBA
12956 * @phba: HBA structure that indicates port to create a queue on.
12957 * @eq: The queue structure to use to create the event queue.
12958 * @imax: The maximum interrupt per second limit.
12960 * This function creates an event queue, as detailed in @eq, on a port,
12961 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
12963 * The @phba struct is used to send mailbox command to HBA. The @eq struct
12964 * is used to get the entry count and entry size that are necessary to
12965 * determine the number of pages to allocate and use for this queue. This
12966 * function will send the EQ_CREATE mailbox command to the HBA to setup the
12967 * event queue. This function is asynchronous and will wait for the mailbox
12968 * command to finish before continuing.
12970 * On success this function will return a zero. If unable to allocate enough
12971 * memory this function will return -ENOMEM. If the queue create mailbox command
12972 * fails this function will return -ENXIO.
12975 lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint32_t imax)
12977 struct lpfc_mbx_eq_create *eq_create;
12978 LPFC_MBOXQ_t *mbox;
12979 int rc, length, status = 0;
12980 struct lpfc_dmabuf *dmabuf;
12981 uint32_t shdr_status, shdr_add_status;
12982 union lpfc_sli4_cfg_shdr *shdr;
12984 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12986 /* sanity check on queue memory */
12989 if (!phba->sli4_hba.pc_sli4_params.supported)
12990 hw_page_size = SLI4_PAGE_SIZE;
12992 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12995 length = (sizeof(struct lpfc_mbx_eq_create) -
12996 sizeof(struct lpfc_sli4_cfg_mhdr));
12997 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12998 LPFC_MBOX_OPCODE_EQ_CREATE,
12999 length, LPFC_SLI4_MBX_EMBED);
13000 eq_create = &mbox->u.mqe.un.eq_create;
13001 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
13003 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
13005 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
13006 /* don't setup delay multiplier using EQ_CREATE */
13008 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
13010 switch (eq->entry_count) {
13012 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13013 "0360 Unsupported EQ count. (%d)\n",
13015 if (eq->entry_count < 256)
13017 /* otherwise default to smallest count (drop through) */
13019 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
13023 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
13027 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
13031 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
13035 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
13039 list_for_each_entry(dmabuf, &eq->page_list, list) {
13040 memset(dmabuf->virt, 0, hw_page_size);
13041 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13042 putPaddrLow(dmabuf->phys);
13043 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13044 putPaddrHigh(dmabuf->phys);
13046 mbox->vport = phba->pport;
13047 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13048 mbox->context1 = NULL;
13049 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13050 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
13051 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13052 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13053 if (shdr_status || shdr_add_status || rc) {
13054 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13055 "2500 EQ_CREATE mailbox failed with "
13056 "status x%x add_status x%x, mbx status x%x\n",
13057 shdr_status, shdr_add_status, rc);
13060 eq->type = LPFC_EQ;
13061 eq->subtype = LPFC_NONE;
13062 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
13063 if (eq->queue_id == 0xFFFF)
13065 eq->host_index = 0;
13068 mempool_free(mbox, phba->mbox_mem_pool);
13073 * lpfc_cq_create - Create a Completion Queue on the HBA
13074 * @phba: HBA structure that indicates port to create a queue on.
13075 * @cq: The queue structure to use to create the completion queue.
13076 * @eq: The event queue to bind this completion queue to.
13078 * This function creates a completion queue, as detailed in @wq, on a port,
13079 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
13081 * The @phba struct is used to send mailbox command to HBA. The @cq struct
13082 * is used to get the entry count and entry size that are necessary to
13083 * determine the number of pages to allocate and use for this queue. The @eq
13084 * is used to indicate which event queue to bind this completion queue to. This
13085 * function will send the CQ_CREATE mailbox command to the HBA to setup the
13086 * completion queue. This function is asynchronous and will wait for the mailbox
13087 * command to finish before continuing.
13089 * On success this function will return a zero. If unable to allocate enough
13090 * memory this function will return -ENOMEM. If the queue create mailbox command
13091 * fails this function will return -ENXIO.
13094 lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
13095 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
13097 struct lpfc_mbx_cq_create *cq_create;
13098 struct lpfc_dmabuf *dmabuf;
13099 LPFC_MBOXQ_t *mbox;
13100 int rc, length, status = 0;
13101 uint32_t shdr_status, shdr_add_status;
13102 union lpfc_sli4_cfg_shdr *shdr;
13103 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
13105 /* sanity check on queue memory */
13108 if (!phba->sli4_hba.pc_sli4_params.supported)
13109 hw_page_size = SLI4_PAGE_SIZE;
13111 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13114 length = (sizeof(struct lpfc_mbx_cq_create) -
13115 sizeof(struct lpfc_sli4_cfg_mhdr));
13116 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13117 LPFC_MBOX_OPCODE_CQ_CREATE,
13118 length, LPFC_SLI4_MBX_EMBED);
13119 cq_create = &mbox->u.mqe.un.cq_create;
13120 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
13121 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
13123 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
13124 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
13125 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13126 phba->sli4_hba.pc_sli4_params.cqv);
13127 if (phba->sli4_hba.pc_sli4_params.cqv == LPFC_Q_CREATE_VERSION_2) {
13128 /* FW only supports 1. Should be PAGE_SIZE/SLI4_PAGE_SIZE */
13129 bf_set(lpfc_mbx_cq_create_page_size, &cq_create->u.request, 1);
13130 bf_set(lpfc_cq_eq_id_2, &cq_create->u.request.context,
13133 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context,
13136 switch (cq->entry_count) {
13138 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13139 "0361 Unsupported CQ count. (%d)\n",
13141 if (cq->entry_count < 256) {
13145 /* otherwise default to smallest count (drop through) */
13147 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
13151 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
13155 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
13159 list_for_each_entry(dmabuf, &cq->page_list, list) {
13160 memset(dmabuf->virt, 0, hw_page_size);
13161 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13162 putPaddrLow(dmabuf->phys);
13163 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13164 putPaddrHigh(dmabuf->phys);
13166 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13168 /* The IOCTL status is embedded in the mailbox subheader. */
13169 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13170 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13171 if (shdr_status || shdr_add_status || rc) {
13172 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13173 "2501 CQ_CREATE mailbox failed with "
13174 "status x%x add_status x%x, mbx status x%x\n",
13175 shdr_status, shdr_add_status, rc);
13179 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
13180 if (cq->queue_id == 0xFFFF) {
13184 /* link the cq onto the parent eq child list */
13185 list_add_tail(&cq->list, &eq->child_list);
13186 /* Set up completion queue's type and subtype */
13188 cq->subtype = subtype;
13189 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
13190 cq->assoc_qid = eq->queue_id;
13191 cq->host_index = 0;
13195 mempool_free(mbox, phba->mbox_mem_pool);
13200 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
13201 * @phba: HBA structure that indicates port to create a queue on.
13202 * @mq: The queue structure to use to create the mailbox queue.
13203 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
13204 * @cq: The completion queue to associate with this cq.
13206 * This function provides failback (fb) functionality when the
13207 * mq_create_ext fails on older FW generations. It's purpose is identical
13208 * to mq_create_ext otherwise.
13210 * This routine cannot fail as all attributes were previously accessed and
13211 * initialized in mq_create_ext.
13214 lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq,
13215 LPFC_MBOXQ_t *mbox, struct lpfc_queue *cq)
13217 struct lpfc_mbx_mq_create *mq_create;
13218 struct lpfc_dmabuf *dmabuf;
13221 length = (sizeof(struct lpfc_mbx_mq_create) -
13222 sizeof(struct lpfc_sli4_cfg_mhdr));
13223 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13224 LPFC_MBOX_OPCODE_MQ_CREATE,
13225 length, LPFC_SLI4_MBX_EMBED);
13226 mq_create = &mbox->u.mqe.un.mq_create;
13227 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
13229 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
13231 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
13232 switch (mq->entry_count) {
13234 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
13235 LPFC_MQ_RING_SIZE_16);
13238 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
13239 LPFC_MQ_RING_SIZE_32);
13242 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
13243 LPFC_MQ_RING_SIZE_64);
13246 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
13247 LPFC_MQ_RING_SIZE_128);
13250 list_for_each_entry(dmabuf, &mq->page_list, list) {
13251 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13252 putPaddrLow(dmabuf->phys);
13253 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13254 putPaddrHigh(dmabuf->phys);
13259 * lpfc_mq_create - Create a mailbox Queue on the HBA
13260 * @phba: HBA structure that indicates port to create a queue on.
13261 * @mq: The queue structure to use to create the mailbox queue.
13262 * @cq: The completion queue to associate with this cq.
13263 * @subtype: The queue's subtype.
13265 * This function creates a mailbox queue, as detailed in @mq, on a port,
13266 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
13268 * The @phba struct is used to send mailbox command to HBA. The @cq struct
13269 * is used to get the entry count and entry size that are necessary to
13270 * determine the number of pages to allocate and use for this queue. This
13271 * function will send the MQ_CREATE mailbox command to the HBA to setup the
13272 * mailbox queue. This function is asynchronous and will wait for the mailbox
13273 * command to finish before continuing.
13275 * On success this function will return a zero. If unable to allocate enough
13276 * memory this function will return -ENOMEM. If the queue create mailbox command
13277 * fails this function will return -ENXIO.
13280 lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
13281 struct lpfc_queue *cq, uint32_t subtype)
13283 struct lpfc_mbx_mq_create *mq_create;
13284 struct lpfc_mbx_mq_create_ext *mq_create_ext;
13285 struct lpfc_dmabuf *dmabuf;
13286 LPFC_MBOXQ_t *mbox;
13287 int rc, length, status = 0;
13288 uint32_t shdr_status, shdr_add_status;
13289 union lpfc_sli4_cfg_shdr *shdr;
13290 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
13292 /* sanity check on queue memory */
13295 if (!phba->sli4_hba.pc_sli4_params.supported)
13296 hw_page_size = SLI4_PAGE_SIZE;
13298 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13301 length = (sizeof(struct lpfc_mbx_mq_create_ext) -
13302 sizeof(struct lpfc_sli4_cfg_mhdr));
13303 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13304 LPFC_MBOX_OPCODE_MQ_CREATE_EXT,
13305 length, LPFC_SLI4_MBX_EMBED);
13307 mq_create_ext = &mbox->u.mqe.un.mq_create_ext;
13308 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr;
13309 bf_set(lpfc_mbx_mq_create_ext_num_pages,
13310 &mq_create_ext->u.request, mq->page_count);
13311 bf_set(lpfc_mbx_mq_create_ext_async_evt_link,
13312 &mq_create_ext->u.request, 1);
13313 bf_set(lpfc_mbx_mq_create_ext_async_evt_fip,
13314 &mq_create_ext->u.request, 1);
13315 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5,
13316 &mq_create_ext->u.request, 1);
13317 bf_set(lpfc_mbx_mq_create_ext_async_evt_fc,
13318 &mq_create_ext->u.request, 1);
13319 bf_set(lpfc_mbx_mq_create_ext_async_evt_sli,
13320 &mq_create_ext->u.request, 1);
13321 bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1);
13322 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13323 phba->sli4_hba.pc_sli4_params.mqv);
13324 if (phba->sli4_hba.pc_sli4_params.mqv == LPFC_Q_CREATE_VERSION_1)
13325 bf_set(lpfc_mbx_mq_create_ext_cq_id, &mq_create_ext->u.request,
13328 bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context,
13330 switch (mq->entry_count) {
13332 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13333 "0362 Unsupported MQ count. (%d)\n",
13335 if (mq->entry_count < 16) {
13339 /* otherwise default to smallest count (drop through) */
13341 bf_set(lpfc_mq_context_ring_size,
13342 &mq_create_ext->u.request.context,
13343 LPFC_MQ_RING_SIZE_16);
13346 bf_set(lpfc_mq_context_ring_size,
13347 &mq_create_ext->u.request.context,
13348 LPFC_MQ_RING_SIZE_32);
13351 bf_set(lpfc_mq_context_ring_size,
13352 &mq_create_ext->u.request.context,
13353 LPFC_MQ_RING_SIZE_64);
13356 bf_set(lpfc_mq_context_ring_size,
13357 &mq_create_ext->u.request.context,
13358 LPFC_MQ_RING_SIZE_128);
13361 list_for_each_entry(dmabuf, &mq->page_list, list) {
13362 memset(dmabuf->virt, 0, hw_page_size);
13363 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_lo =
13364 putPaddrLow(dmabuf->phys);
13365 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_hi =
13366 putPaddrHigh(dmabuf->phys);
13368 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13369 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
13370 &mq_create_ext->u.response);
13371 if (rc != MBX_SUCCESS) {
13372 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13373 "2795 MQ_CREATE_EXT failed with "
13374 "status x%x. Failback to MQ_CREATE.\n",
13376 lpfc_mq_create_fb_init(phba, mq, mbox, cq);
13377 mq_create = &mbox->u.mqe.un.mq_create;
13378 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13379 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
13380 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
13381 &mq_create->u.response);
13384 /* The IOCTL status is embedded in the mailbox subheader. */
13385 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13386 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13387 if (shdr_status || shdr_add_status || rc) {
13388 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13389 "2502 MQ_CREATE mailbox failed with "
13390 "status x%x add_status x%x, mbx status x%x\n",
13391 shdr_status, shdr_add_status, rc);
13395 if (mq->queue_id == 0xFFFF) {
13399 mq->type = LPFC_MQ;
13400 mq->assoc_qid = cq->queue_id;
13401 mq->subtype = subtype;
13402 mq->host_index = 0;
13405 /* link the mq onto the parent cq child list */
13406 list_add_tail(&mq->list, &cq->child_list);
13408 mempool_free(mbox, phba->mbox_mem_pool);
13413 * lpfc_wq_create - Create a Work Queue on the HBA
13414 * @phba: HBA structure that indicates port to create a queue on.
13415 * @wq: The queue structure to use to create the work queue.
13416 * @cq: The completion queue to bind this work queue to.
13417 * @subtype: The subtype of the work queue indicating its functionality.
13419 * This function creates a work queue, as detailed in @wq, on a port, described
13420 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
13422 * The @phba struct is used to send mailbox command to HBA. The @wq struct
13423 * is used to get the entry count and entry size that are necessary to
13424 * determine the number of pages to allocate and use for this queue. The @cq
13425 * is used to indicate which completion queue to bind this work queue to. This
13426 * function will send the WQ_CREATE mailbox command to the HBA to setup the
13427 * work queue. This function is asynchronous and will wait for the mailbox
13428 * command to finish before continuing.
13430 * On success this function will return a zero. If unable to allocate enough
13431 * memory this function will return -ENOMEM. If the queue create mailbox command
13432 * fails this function will return -ENXIO.
13435 lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
13436 struct lpfc_queue *cq, uint32_t subtype)
13438 struct lpfc_mbx_wq_create *wq_create;
13439 struct lpfc_dmabuf *dmabuf;
13440 LPFC_MBOXQ_t *mbox;
13441 int rc, length, status = 0;
13442 uint32_t shdr_status, shdr_add_status;
13443 union lpfc_sli4_cfg_shdr *shdr;
13444 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
13445 struct dma_address *page;
13446 void __iomem *bar_memmap_p;
13447 uint32_t db_offset;
13448 uint16_t pci_barset;
13450 /* sanity check on queue memory */
13453 if (!phba->sli4_hba.pc_sli4_params.supported)
13454 hw_page_size = SLI4_PAGE_SIZE;
13456 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13459 length = (sizeof(struct lpfc_mbx_wq_create) -
13460 sizeof(struct lpfc_sli4_cfg_mhdr));
13461 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13462 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
13463 length, LPFC_SLI4_MBX_EMBED);
13464 wq_create = &mbox->u.mqe.un.wq_create;
13465 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
13466 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
13468 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
13471 /* wqv is the earliest version supported, NOT the latest */
13472 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13473 phba->sli4_hba.pc_sli4_params.wqv);
13475 switch (phba->sli4_hba.pc_sli4_params.wqv) {
13476 case LPFC_Q_CREATE_VERSION_0:
13477 switch (wq->entry_size) {
13480 /* Nothing to do, version 0 ONLY supports 64 byte */
13481 page = wq_create->u.request.page;
13484 if (!(phba->sli4_hba.pc_sli4_params.wqsize &
13485 LPFC_WQ_SZ128_SUPPORT)) {
13489 /* If we get here the HBA MUST also support V1 and
13492 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13493 LPFC_Q_CREATE_VERSION_1);
13495 bf_set(lpfc_mbx_wq_create_wqe_count,
13496 &wq_create->u.request_1, wq->entry_count);
13497 bf_set(lpfc_mbx_wq_create_wqe_size,
13498 &wq_create->u.request_1,
13499 LPFC_WQ_WQE_SIZE_128);
13500 bf_set(lpfc_mbx_wq_create_page_size,
13501 &wq_create->u.request_1,
13502 (PAGE_SIZE/SLI4_PAGE_SIZE));
13503 page = wq_create->u.request_1.page;
13507 case LPFC_Q_CREATE_VERSION_1:
13508 bf_set(lpfc_mbx_wq_create_wqe_count, &wq_create->u.request_1,
13510 switch (wq->entry_size) {
13513 bf_set(lpfc_mbx_wq_create_wqe_size,
13514 &wq_create->u.request_1,
13515 LPFC_WQ_WQE_SIZE_64);
13518 if (!(phba->sli4_hba.pc_sli4_params.wqsize &
13519 LPFC_WQ_SZ128_SUPPORT)) {
13523 bf_set(lpfc_mbx_wq_create_wqe_size,
13524 &wq_create->u.request_1,
13525 LPFC_WQ_WQE_SIZE_128);
13528 bf_set(lpfc_mbx_wq_create_page_size, &wq_create->u.request_1,
13529 (PAGE_SIZE/SLI4_PAGE_SIZE));
13530 page = wq_create->u.request_1.page;
13537 list_for_each_entry(dmabuf, &wq->page_list, list) {
13538 memset(dmabuf->virt, 0, hw_page_size);
13539 page[dmabuf->buffer_tag].addr_lo = putPaddrLow(dmabuf->phys);
13540 page[dmabuf->buffer_tag].addr_hi = putPaddrHigh(dmabuf->phys);
13543 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
13544 bf_set(lpfc_mbx_wq_create_dua, &wq_create->u.request, 1);
13546 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13547 /* The IOCTL status is embedded in the mailbox subheader. */
13548 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13549 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13550 if (shdr_status || shdr_add_status || rc) {
13551 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13552 "2503 WQ_CREATE mailbox failed with "
13553 "status x%x add_status x%x, mbx status x%x\n",
13554 shdr_status, shdr_add_status, rc);
13558 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response);
13559 if (wq->queue_id == 0xFFFF) {
13563 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
13564 wq->db_format = bf_get(lpfc_mbx_wq_create_db_format,
13565 &wq_create->u.response);
13566 if ((wq->db_format != LPFC_DB_LIST_FORMAT) &&
13567 (wq->db_format != LPFC_DB_RING_FORMAT)) {
13568 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13569 "3265 WQ[%d] doorbell format not "
13570 "supported: x%x\n", wq->queue_id,
13575 pci_barset = bf_get(lpfc_mbx_wq_create_bar_set,
13576 &wq_create->u.response);
13577 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
13578 if (!bar_memmap_p) {
13579 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13580 "3263 WQ[%d] failed to memmap pci "
13581 "barset:x%x\n", wq->queue_id,
13586 db_offset = wq_create->u.response.doorbell_offset;
13587 if ((db_offset != LPFC_ULP0_WQ_DOORBELL) &&
13588 (db_offset != LPFC_ULP1_WQ_DOORBELL)) {
13589 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13590 "3252 WQ[%d] doorbell offset not "
13591 "supported: x%x\n", wq->queue_id,
13596 wq->db_regaddr = bar_memmap_p + db_offset;
13597 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13598 "3264 WQ[%d]: barset:x%x, offset:x%x, "
13599 "format:x%x\n", wq->queue_id, pci_barset,
13600 db_offset, wq->db_format);
13602 wq->db_format = LPFC_DB_LIST_FORMAT;
13603 wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
13605 wq->type = LPFC_WQ;
13606 wq->assoc_qid = cq->queue_id;
13607 wq->subtype = subtype;
13608 wq->host_index = 0;
13610 wq->entry_repost = LPFC_RELEASE_NOTIFICATION_INTERVAL;
13612 /* link the wq onto the parent cq child list */
13613 list_add_tail(&wq->list, &cq->child_list);
13615 mempool_free(mbox, phba->mbox_mem_pool);
13620 * lpfc_rq_adjust_repost - Adjust entry_repost for an RQ
13621 * @phba: HBA structure that indicates port to create a queue on.
13622 * @rq: The queue structure to use for the receive queue.
13623 * @qno: The associated HBQ number
13626 * For SLI4 we need to adjust the RQ repost value based on
13627 * the number of buffers that are initially posted to the RQ.
13630 lpfc_rq_adjust_repost(struct lpfc_hba *phba, struct lpfc_queue *rq, int qno)
13634 /* sanity check on queue memory */
13637 cnt = lpfc_hbq_defs[qno]->entry_count;
13639 /* Recalc repost for RQs based on buffers initially posted */
13641 if (cnt < LPFC_QUEUE_MIN_REPOST)
13642 cnt = LPFC_QUEUE_MIN_REPOST;
13644 rq->entry_repost = cnt;
13648 * lpfc_rq_create - Create a Receive Queue on the HBA
13649 * @phba: HBA structure that indicates port to create a queue on.
13650 * @hrq: The queue structure to use to create the header receive queue.
13651 * @drq: The queue structure to use to create the data receive queue.
13652 * @cq: The completion queue to bind this work queue to.
13654 * This function creates a receive buffer queue pair , as detailed in @hrq and
13655 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
13658 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
13659 * struct is used to get the entry count that is necessary to determine the
13660 * number of pages to use for this queue. The @cq is used to indicate which
13661 * completion queue to bind received buffers that are posted to these queues to.
13662 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
13663 * receive queue pair. This function is asynchronous and will wait for the
13664 * mailbox command to finish before continuing.
13666 * On success this function will return a zero. If unable to allocate enough
13667 * memory this function will return -ENOMEM. If the queue create mailbox command
13668 * fails this function will return -ENXIO.
13671 lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
13672 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
13674 struct lpfc_mbx_rq_create *rq_create;
13675 struct lpfc_dmabuf *dmabuf;
13676 LPFC_MBOXQ_t *mbox;
13677 int rc, length, status = 0;
13678 uint32_t shdr_status, shdr_add_status;
13679 union lpfc_sli4_cfg_shdr *shdr;
13680 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
13681 void __iomem *bar_memmap_p;
13682 uint32_t db_offset;
13683 uint16_t pci_barset;
13685 /* sanity check on queue memory */
13686 if (!hrq || !drq || !cq)
13688 if (!phba->sli4_hba.pc_sli4_params.supported)
13689 hw_page_size = SLI4_PAGE_SIZE;
13691 if (hrq->entry_count != drq->entry_count)
13693 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13696 length = (sizeof(struct lpfc_mbx_rq_create) -
13697 sizeof(struct lpfc_sli4_cfg_mhdr));
13698 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13699 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
13700 length, LPFC_SLI4_MBX_EMBED);
13701 rq_create = &mbox->u.mqe.un.rq_create;
13702 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
13703 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13704 phba->sli4_hba.pc_sli4_params.rqv);
13705 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
13706 bf_set(lpfc_rq_context_rqe_count_1,
13707 &rq_create->u.request.context,
13709 rq_create->u.request.context.buffer_size = LPFC_HDR_BUF_SIZE;
13710 bf_set(lpfc_rq_context_rqe_size,
13711 &rq_create->u.request.context,
13713 bf_set(lpfc_rq_context_page_size,
13714 &rq_create->u.request.context,
13715 (PAGE_SIZE/SLI4_PAGE_SIZE));
13717 switch (hrq->entry_count) {
13719 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13720 "2535 Unsupported RQ count. (%d)\n",
13722 if (hrq->entry_count < 512) {
13726 /* otherwise default to smallest count (drop through) */
13728 bf_set(lpfc_rq_context_rqe_count,
13729 &rq_create->u.request.context,
13730 LPFC_RQ_RING_SIZE_512);
13733 bf_set(lpfc_rq_context_rqe_count,
13734 &rq_create->u.request.context,
13735 LPFC_RQ_RING_SIZE_1024);
13738 bf_set(lpfc_rq_context_rqe_count,
13739 &rq_create->u.request.context,
13740 LPFC_RQ_RING_SIZE_2048);
13743 bf_set(lpfc_rq_context_rqe_count,
13744 &rq_create->u.request.context,
13745 LPFC_RQ_RING_SIZE_4096);
13748 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
13749 LPFC_HDR_BUF_SIZE);
13751 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
13753 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
13755 list_for_each_entry(dmabuf, &hrq->page_list, list) {
13756 memset(dmabuf->virt, 0, hw_page_size);
13757 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13758 putPaddrLow(dmabuf->phys);
13759 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13760 putPaddrHigh(dmabuf->phys);
13762 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
13763 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
13765 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13766 /* The IOCTL status is embedded in the mailbox subheader. */
13767 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13768 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13769 if (shdr_status || shdr_add_status || rc) {
13770 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13771 "2504 RQ_CREATE mailbox failed with "
13772 "status x%x add_status x%x, mbx status x%x\n",
13773 shdr_status, shdr_add_status, rc);
13777 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
13778 if (hrq->queue_id == 0xFFFF) {
13783 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
13784 hrq->db_format = bf_get(lpfc_mbx_rq_create_db_format,
13785 &rq_create->u.response);
13786 if ((hrq->db_format != LPFC_DB_LIST_FORMAT) &&
13787 (hrq->db_format != LPFC_DB_RING_FORMAT)) {
13788 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13789 "3262 RQ [%d] doorbell format not "
13790 "supported: x%x\n", hrq->queue_id,
13796 pci_barset = bf_get(lpfc_mbx_rq_create_bar_set,
13797 &rq_create->u.response);
13798 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
13799 if (!bar_memmap_p) {
13800 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13801 "3269 RQ[%d] failed to memmap pci "
13802 "barset:x%x\n", hrq->queue_id,
13808 db_offset = rq_create->u.response.doorbell_offset;
13809 if ((db_offset != LPFC_ULP0_RQ_DOORBELL) &&
13810 (db_offset != LPFC_ULP1_RQ_DOORBELL)) {
13811 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13812 "3270 RQ[%d] doorbell offset not "
13813 "supported: x%x\n", hrq->queue_id,
13818 hrq->db_regaddr = bar_memmap_p + db_offset;
13819 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13820 "3266 RQ[qid:%d]: barset:x%x, offset:x%x, "
13821 "format:x%x\n", hrq->queue_id, pci_barset,
13822 db_offset, hrq->db_format);
13824 hrq->db_format = LPFC_DB_RING_FORMAT;
13825 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
13827 hrq->type = LPFC_HRQ;
13828 hrq->assoc_qid = cq->queue_id;
13829 hrq->subtype = subtype;
13830 hrq->host_index = 0;
13831 hrq->hba_index = 0;
13833 /* now create the data queue */
13834 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13835 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
13836 length, LPFC_SLI4_MBX_EMBED);
13837 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13838 phba->sli4_hba.pc_sli4_params.rqv);
13839 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
13840 bf_set(lpfc_rq_context_rqe_count_1,
13841 &rq_create->u.request.context, hrq->entry_count);
13842 rq_create->u.request.context.buffer_size = LPFC_DATA_BUF_SIZE;
13843 bf_set(lpfc_rq_context_rqe_size, &rq_create->u.request.context,
13845 bf_set(lpfc_rq_context_page_size, &rq_create->u.request.context,
13846 (PAGE_SIZE/SLI4_PAGE_SIZE));
13848 switch (drq->entry_count) {
13850 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13851 "2536 Unsupported RQ count. (%d)\n",
13853 if (drq->entry_count < 512) {
13857 /* otherwise default to smallest count (drop through) */
13859 bf_set(lpfc_rq_context_rqe_count,
13860 &rq_create->u.request.context,
13861 LPFC_RQ_RING_SIZE_512);
13864 bf_set(lpfc_rq_context_rqe_count,
13865 &rq_create->u.request.context,
13866 LPFC_RQ_RING_SIZE_1024);
13869 bf_set(lpfc_rq_context_rqe_count,
13870 &rq_create->u.request.context,
13871 LPFC_RQ_RING_SIZE_2048);
13874 bf_set(lpfc_rq_context_rqe_count,
13875 &rq_create->u.request.context,
13876 LPFC_RQ_RING_SIZE_4096);
13879 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
13880 LPFC_DATA_BUF_SIZE);
13882 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
13884 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
13886 list_for_each_entry(dmabuf, &drq->page_list, list) {
13887 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13888 putPaddrLow(dmabuf->phys);
13889 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13890 putPaddrHigh(dmabuf->phys);
13892 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
13893 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
13894 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13895 /* The IOCTL status is embedded in the mailbox subheader. */
13896 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
13897 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13898 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13899 if (shdr_status || shdr_add_status || rc) {
13903 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
13904 if (drq->queue_id == 0xFFFF) {
13908 drq->type = LPFC_DRQ;
13909 drq->assoc_qid = cq->queue_id;
13910 drq->subtype = subtype;
13911 drq->host_index = 0;
13912 drq->hba_index = 0;
13914 /* link the header and data RQs onto the parent cq child list */
13915 list_add_tail(&hrq->list, &cq->child_list);
13916 list_add_tail(&drq->list, &cq->child_list);
13919 mempool_free(mbox, phba->mbox_mem_pool);
13924 * lpfc_eq_destroy - Destroy an event Queue on the HBA
13925 * @eq: The queue structure associated with the queue to destroy.
13927 * This function destroys a queue, as detailed in @eq by sending an mailbox
13928 * command, specific to the type of queue, to the HBA.
13930 * The @eq struct is used to get the queue ID of the queue to destroy.
13932 * On success this function will return a zero. If the queue destroy mailbox
13933 * command fails this function will return -ENXIO.
13936 lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
13938 LPFC_MBOXQ_t *mbox;
13939 int rc, length, status = 0;
13940 uint32_t shdr_status, shdr_add_status;
13941 union lpfc_sli4_cfg_shdr *shdr;
13943 /* sanity check on queue memory */
13946 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
13949 length = (sizeof(struct lpfc_mbx_eq_destroy) -
13950 sizeof(struct lpfc_sli4_cfg_mhdr));
13951 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13952 LPFC_MBOX_OPCODE_EQ_DESTROY,
13953 length, LPFC_SLI4_MBX_EMBED);
13954 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
13956 mbox->vport = eq->phba->pport;
13957 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13959 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
13960 /* The IOCTL status is embedded in the mailbox subheader. */
13961 shdr = (union lpfc_sli4_cfg_shdr *)
13962 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
13963 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13964 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13965 if (shdr_status || shdr_add_status || rc) {
13966 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13967 "2505 EQ_DESTROY mailbox failed with "
13968 "status x%x add_status x%x, mbx status x%x\n",
13969 shdr_status, shdr_add_status, rc);
13973 /* Remove eq from any list */
13974 list_del_init(&eq->list);
13975 mempool_free(mbox, eq->phba->mbox_mem_pool);
13980 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
13981 * @cq: The queue structure associated with the queue to destroy.
13983 * This function destroys a queue, as detailed in @cq by sending an mailbox
13984 * command, specific to the type of queue, to the HBA.
13986 * The @cq struct is used to get the queue ID of the queue to destroy.
13988 * On success this function will return a zero. If the queue destroy mailbox
13989 * command fails this function will return -ENXIO.
13992 lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
13994 LPFC_MBOXQ_t *mbox;
13995 int rc, length, status = 0;
13996 uint32_t shdr_status, shdr_add_status;
13997 union lpfc_sli4_cfg_shdr *shdr;
13999 /* sanity check on queue memory */
14002 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
14005 length = (sizeof(struct lpfc_mbx_cq_destroy) -
14006 sizeof(struct lpfc_sli4_cfg_mhdr));
14007 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14008 LPFC_MBOX_OPCODE_CQ_DESTROY,
14009 length, LPFC_SLI4_MBX_EMBED);
14010 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
14012 mbox->vport = cq->phba->pport;
14013 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14014 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
14015 /* The IOCTL status is embedded in the mailbox subheader. */
14016 shdr = (union lpfc_sli4_cfg_shdr *)
14017 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
14018 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14019 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14020 if (shdr_status || shdr_add_status || rc) {
14021 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14022 "2506 CQ_DESTROY mailbox failed with "
14023 "status x%x add_status x%x, mbx status x%x\n",
14024 shdr_status, shdr_add_status, rc);
14027 /* Remove cq from any list */
14028 list_del_init(&cq->list);
14029 mempool_free(mbox, cq->phba->mbox_mem_pool);
14034 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
14035 * @qm: The queue structure associated with the queue to destroy.
14037 * This function destroys a queue, as detailed in @mq by sending an mailbox
14038 * command, specific to the type of queue, to the HBA.
14040 * The @mq struct is used to get the queue ID of the queue to destroy.
14042 * On success this function will return a zero. If the queue destroy mailbox
14043 * command fails this function will return -ENXIO.
14046 lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
14048 LPFC_MBOXQ_t *mbox;
14049 int rc, length, status = 0;
14050 uint32_t shdr_status, shdr_add_status;
14051 union lpfc_sli4_cfg_shdr *shdr;
14053 /* sanity check on queue memory */
14056 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
14059 length = (sizeof(struct lpfc_mbx_mq_destroy) -
14060 sizeof(struct lpfc_sli4_cfg_mhdr));
14061 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14062 LPFC_MBOX_OPCODE_MQ_DESTROY,
14063 length, LPFC_SLI4_MBX_EMBED);
14064 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
14066 mbox->vport = mq->phba->pport;
14067 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14068 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
14069 /* The IOCTL status is embedded in the mailbox subheader. */
14070 shdr = (union lpfc_sli4_cfg_shdr *)
14071 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
14072 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14073 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14074 if (shdr_status || shdr_add_status || rc) {
14075 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14076 "2507 MQ_DESTROY mailbox failed with "
14077 "status x%x add_status x%x, mbx status x%x\n",
14078 shdr_status, shdr_add_status, rc);
14081 /* Remove mq from any list */
14082 list_del_init(&mq->list);
14083 mempool_free(mbox, mq->phba->mbox_mem_pool);
14088 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
14089 * @wq: The queue structure associated with the queue to destroy.
14091 * This function destroys a queue, as detailed in @wq by sending an mailbox
14092 * command, specific to the type of queue, to the HBA.
14094 * The @wq struct is used to get the queue ID of the queue to destroy.
14096 * On success this function will return a zero. If the queue destroy mailbox
14097 * command fails this function will return -ENXIO.
14100 lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
14102 LPFC_MBOXQ_t *mbox;
14103 int rc, length, status = 0;
14104 uint32_t shdr_status, shdr_add_status;
14105 union lpfc_sli4_cfg_shdr *shdr;
14107 /* sanity check on queue memory */
14110 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
14113 length = (sizeof(struct lpfc_mbx_wq_destroy) -
14114 sizeof(struct lpfc_sli4_cfg_mhdr));
14115 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14116 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
14117 length, LPFC_SLI4_MBX_EMBED);
14118 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
14120 mbox->vport = wq->phba->pport;
14121 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14122 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
14123 shdr = (union lpfc_sli4_cfg_shdr *)
14124 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
14125 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14126 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14127 if (shdr_status || shdr_add_status || rc) {
14128 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14129 "2508 WQ_DESTROY mailbox failed with "
14130 "status x%x add_status x%x, mbx status x%x\n",
14131 shdr_status, shdr_add_status, rc);
14134 /* Remove wq from any list */
14135 list_del_init(&wq->list);
14136 mempool_free(mbox, wq->phba->mbox_mem_pool);
14141 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
14142 * @rq: The queue structure associated with the queue to destroy.
14144 * This function destroys a queue, as detailed in @rq by sending an mailbox
14145 * command, specific to the type of queue, to the HBA.
14147 * The @rq struct is used to get the queue ID of the queue to destroy.
14149 * On success this function will return a zero. If the queue destroy mailbox
14150 * command fails this function will return -ENXIO.
14153 lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
14154 struct lpfc_queue *drq)
14156 LPFC_MBOXQ_t *mbox;
14157 int rc, length, status = 0;
14158 uint32_t shdr_status, shdr_add_status;
14159 union lpfc_sli4_cfg_shdr *shdr;
14161 /* sanity check on queue memory */
14164 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
14167 length = (sizeof(struct lpfc_mbx_rq_destroy) -
14168 sizeof(struct lpfc_sli4_cfg_mhdr));
14169 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14170 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
14171 length, LPFC_SLI4_MBX_EMBED);
14172 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
14174 mbox->vport = hrq->phba->pport;
14175 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14176 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
14177 /* The IOCTL status is embedded in the mailbox subheader. */
14178 shdr = (union lpfc_sli4_cfg_shdr *)
14179 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
14180 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14181 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14182 if (shdr_status || shdr_add_status || rc) {
14183 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14184 "2509 RQ_DESTROY mailbox failed with "
14185 "status x%x add_status x%x, mbx status x%x\n",
14186 shdr_status, shdr_add_status, rc);
14187 if (rc != MBX_TIMEOUT)
14188 mempool_free(mbox, hrq->phba->mbox_mem_pool);
14191 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
14193 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
14194 shdr = (union lpfc_sli4_cfg_shdr *)
14195 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
14196 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14197 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14198 if (shdr_status || shdr_add_status || rc) {
14199 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14200 "2510 RQ_DESTROY mailbox failed with "
14201 "status x%x add_status x%x, mbx status x%x\n",
14202 shdr_status, shdr_add_status, rc);
14205 list_del_init(&hrq->list);
14206 list_del_init(&drq->list);
14207 mempool_free(mbox, hrq->phba->mbox_mem_pool);
14212 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
14213 * @phba: The virtual port for which this call being executed.
14214 * @pdma_phys_addr0: Physical address of the 1st SGL page.
14215 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
14216 * @xritag: the xritag that ties this io to the SGL pages.
14218 * This routine will post the sgl pages for the IO that has the xritag
14219 * that is in the iocbq structure. The xritag is assigned during iocbq
14220 * creation and persists for as long as the driver is loaded.
14221 * if the caller has fewer than 256 scatter gather segments to map then
14222 * pdma_phys_addr1 should be 0.
14223 * If the caller needs to map more than 256 scatter gather segment then
14224 * pdma_phys_addr1 should be a valid physical address.
14225 * physical address for SGLs must be 64 byte aligned.
14226 * If you are going to map 2 SGL's then the first one must have 256 entries
14227 * the second sgl can have between 1 and 256 entries.
14231 * -ENXIO, -ENOMEM - Failure
14234 lpfc_sli4_post_sgl(struct lpfc_hba *phba,
14235 dma_addr_t pdma_phys_addr0,
14236 dma_addr_t pdma_phys_addr1,
14239 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
14240 LPFC_MBOXQ_t *mbox;
14242 uint32_t shdr_status, shdr_add_status;
14244 union lpfc_sli4_cfg_shdr *shdr;
14246 if (xritag == NO_XRI) {
14247 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14248 "0364 Invalid param:\n");
14252 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14256 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14257 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
14258 sizeof(struct lpfc_mbx_post_sgl_pages) -
14259 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
14261 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
14262 &mbox->u.mqe.un.post_sgl_pages;
14263 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
14264 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
14266 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
14267 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
14268 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
14269 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
14271 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
14272 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
14273 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
14274 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
14275 if (!phba->sli4_hba.intr_enable)
14276 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14278 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
14279 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
14281 /* The IOCTL status is embedded in the mailbox subheader. */
14282 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
14283 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14284 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14285 if (rc != MBX_TIMEOUT)
14286 mempool_free(mbox, phba->mbox_mem_pool);
14287 if (shdr_status || shdr_add_status || rc) {
14288 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14289 "2511 POST_SGL mailbox failed with "
14290 "status x%x add_status x%x, mbx status x%x\n",
14291 shdr_status, shdr_add_status, rc);
14297 * lpfc_sli4_alloc_xri - Get an available rpi in the device's range
14298 * @phba: pointer to lpfc hba data structure.
14300 * This routine is invoked to post rpi header templates to the
14301 * HBA consistent with the SLI-4 interface spec. This routine
14302 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
14303 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
14306 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
14307 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
14310 lpfc_sli4_alloc_xri(struct lpfc_hba *phba)
14315 * Fetch the next logical xri. Because this index is logical,
14316 * the driver starts at 0 each time.
14318 spin_lock_irq(&phba->hbalock);
14319 xri = find_next_zero_bit(phba->sli4_hba.xri_bmask,
14320 phba->sli4_hba.max_cfg_param.max_xri, 0);
14321 if (xri >= phba->sli4_hba.max_cfg_param.max_xri) {
14322 spin_unlock_irq(&phba->hbalock);
14325 set_bit(xri, phba->sli4_hba.xri_bmask);
14326 phba->sli4_hba.max_cfg_param.xri_used++;
14328 spin_unlock_irq(&phba->hbalock);
14333 * lpfc_sli4_free_xri - Release an xri for reuse.
14334 * @phba: pointer to lpfc hba data structure.
14336 * This routine is invoked to release an xri to the pool of
14337 * available rpis maintained by the driver.
14340 __lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
14342 if (test_and_clear_bit(xri, phba->sli4_hba.xri_bmask)) {
14343 phba->sli4_hba.max_cfg_param.xri_used--;
14348 * lpfc_sli4_free_xri - Release an xri for reuse.
14349 * @phba: pointer to lpfc hba data structure.
14351 * This routine is invoked to release an xri to the pool of
14352 * available rpis maintained by the driver.
14355 lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
14357 spin_lock_irq(&phba->hbalock);
14358 __lpfc_sli4_free_xri(phba, xri);
14359 spin_unlock_irq(&phba->hbalock);
14363 * lpfc_sli4_next_xritag - Get an xritag for the io
14364 * @phba: Pointer to HBA context object.
14366 * This function gets an xritag for the iocb. If there is no unused xritag
14367 * it will return 0xffff.
14368 * The function returns the allocated xritag if successful, else returns zero.
14369 * Zero is not a valid xritag.
14370 * The caller is not required to hold any lock.
14373 lpfc_sli4_next_xritag(struct lpfc_hba *phba)
14375 uint16_t xri_index;
14377 xri_index = lpfc_sli4_alloc_xri(phba);
14378 if (xri_index == NO_XRI)
14379 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
14380 "2004 Failed to allocate XRI.last XRITAG is %d"
14381 " Max XRI is %d, Used XRI is %d\n",
14383 phba->sli4_hba.max_cfg_param.max_xri,
14384 phba->sli4_hba.max_cfg_param.xri_used);
14389 * lpfc_sli4_post_els_sgl_list - post a block of ELS sgls to the port.
14390 * @phba: pointer to lpfc hba data structure.
14391 * @post_sgl_list: pointer to els sgl entry list.
14392 * @count: number of els sgl entries on the list.
14394 * This routine is invoked to post a block of driver's sgl pages to the
14395 * HBA using non-embedded mailbox command. No Lock is held. This routine
14396 * is only called when the driver is loading and after all IO has been
14400 lpfc_sli4_post_els_sgl_list(struct lpfc_hba *phba,
14401 struct list_head *post_sgl_list,
14404 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
14405 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
14406 struct sgl_page_pairs *sgl_pg_pairs;
14408 LPFC_MBOXQ_t *mbox;
14409 uint32_t reqlen, alloclen, pg_pairs;
14411 uint16_t xritag_start = 0;
14413 uint32_t shdr_status, shdr_add_status;
14414 union lpfc_sli4_cfg_shdr *shdr;
14416 reqlen = phba->sli4_hba.els_xri_cnt * sizeof(struct sgl_page_pairs) +
14417 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
14418 if (reqlen > SLI4_PAGE_SIZE) {
14419 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
14420 "2559 Block sgl registration required DMA "
14421 "size (%d) great than a page\n", reqlen);
14424 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14428 /* Allocate DMA memory and set up the non-embedded mailbox command */
14429 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14430 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
14431 LPFC_SLI4_MBX_NEMBED);
14433 if (alloclen < reqlen) {
14434 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14435 "0285 Allocated DMA memory size (%d) is "
14436 "less than the requested DMA memory "
14437 "size (%d)\n", alloclen, reqlen);
14438 lpfc_sli4_mbox_cmd_free(phba, mbox);
14441 /* Set up the SGL pages in the non-embedded DMA pages */
14442 viraddr = mbox->sge_array->addr[0];
14443 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
14444 sgl_pg_pairs = &sgl->sgl_pg_pairs;
14447 list_for_each_entry_safe(sglq_entry, sglq_next, post_sgl_list, list) {
14448 /* Set up the sge entry */
14449 sgl_pg_pairs->sgl_pg0_addr_lo =
14450 cpu_to_le32(putPaddrLow(sglq_entry->phys));
14451 sgl_pg_pairs->sgl_pg0_addr_hi =
14452 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
14453 sgl_pg_pairs->sgl_pg1_addr_lo =
14454 cpu_to_le32(putPaddrLow(0));
14455 sgl_pg_pairs->sgl_pg1_addr_hi =
14456 cpu_to_le32(putPaddrHigh(0));
14458 /* Keep the first xritag on the list */
14460 xritag_start = sglq_entry->sli4_xritag;
14465 /* Complete initialization and perform endian conversion. */
14466 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
14467 bf_set(lpfc_post_sgl_pages_xricnt, sgl, phba->sli4_hba.els_xri_cnt);
14468 sgl->word0 = cpu_to_le32(sgl->word0);
14469 if (!phba->sli4_hba.intr_enable)
14470 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14472 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
14473 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
14475 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
14476 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14477 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14478 if (rc != MBX_TIMEOUT)
14479 lpfc_sli4_mbox_cmd_free(phba, mbox);
14480 if (shdr_status || shdr_add_status || rc) {
14481 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14482 "2513 POST_SGL_BLOCK mailbox command failed "
14483 "status x%x add_status x%x mbx status x%x\n",
14484 shdr_status, shdr_add_status, rc);
14491 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
14492 * @phba: pointer to lpfc hba data structure.
14493 * @sblist: pointer to scsi buffer list.
14494 * @count: number of scsi buffers on the list.
14496 * This routine is invoked to post a block of @count scsi sgl pages from a
14497 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
14502 lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba,
14503 struct list_head *sblist,
14506 struct lpfc_scsi_buf *psb;
14507 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
14508 struct sgl_page_pairs *sgl_pg_pairs;
14510 LPFC_MBOXQ_t *mbox;
14511 uint32_t reqlen, alloclen, pg_pairs;
14513 uint16_t xritag_start = 0;
14515 uint32_t shdr_status, shdr_add_status;
14516 dma_addr_t pdma_phys_bpl1;
14517 union lpfc_sli4_cfg_shdr *shdr;
14519 /* Calculate the requested length of the dma memory */
14520 reqlen = count * sizeof(struct sgl_page_pairs) +
14521 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
14522 if (reqlen > SLI4_PAGE_SIZE) {
14523 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
14524 "0217 Block sgl registration required DMA "
14525 "size (%d) great than a page\n", reqlen);
14528 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14530 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14531 "0283 Failed to allocate mbox cmd memory\n");
14535 /* Allocate DMA memory and set up the non-embedded mailbox command */
14536 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14537 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
14538 LPFC_SLI4_MBX_NEMBED);
14540 if (alloclen < reqlen) {
14541 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14542 "2561 Allocated DMA memory size (%d) is "
14543 "less than the requested DMA memory "
14544 "size (%d)\n", alloclen, reqlen);
14545 lpfc_sli4_mbox_cmd_free(phba, mbox);
14549 /* Get the first SGE entry from the non-embedded DMA memory */
14550 viraddr = mbox->sge_array->addr[0];
14552 /* Set up the SGL pages in the non-embedded DMA pages */
14553 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
14554 sgl_pg_pairs = &sgl->sgl_pg_pairs;
14557 list_for_each_entry(psb, sblist, list) {
14558 /* Set up the sge entry */
14559 sgl_pg_pairs->sgl_pg0_addr_lo =
14560 cpu_to_le32(putPaddrLow(psb->dma_phys_bpl));
14561 sgl_pg_pairs->sgl_pg0_addr_hi =
14562 cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl));
14563 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
14564 pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE;
14566 pdma_phys_bpl1 = 0;
14567 sgl_pg_pairs->sgl_pg1_addr_lo =
14568 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
14569 sgl_pg_pairs->sgl_pg1_addr_hi =
14570 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
14571 /* Keep the first xritag on the list */
14573 xritag_start = psb->cur_iocbq.sli4_xritag;
14577 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
14578 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
14579 /* Perform endian conversion if necessary */
14580 sgl->word0 = cpu_to_le32(sgl->word0);
14582 if (!phba->sli4_hba.intr_enable)
14583 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14585 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
14586 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
14588 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
14589 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14590 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14591 if (rc != MBX_TIMEOUT)
14592 lpfc_sli4_mbox_cmd_free(phba, mbox);
14593 if (shdr_status || shdr_add_status || rc) {
14594 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14595 "2564 POST_SGL_BLOCK mailbox command failed "
14596 "status x%x add_status x%x mbx status x%x\n",
14597 shdr_status, shdr_add_status, rc);
14604 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
14605 * @phba: pointer to lpfc_hba struct that the frame was received on
14606 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14608 * This function checks the fields in the @fc_hdr to see if the FC frame is a
14609 * valid type of frame that the LPFC driver will handle. This function will
14610 * return a zero if the frame is a valid frame or a non zero value when the
14611 * frame does not pass the check.
14614 lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
14616 /* make rctl_names static to save stack space */
14617 static char *rctl_names[] = FC_RCTL_NAMES_INIT;
14618 char *type_names[] = FC_TYPE_NAMES_INIT;
14619 struct fc_vft_header *fc_vft_hdr;
14620 uint32_t *header = (uint32_t *) fc_hdr;
14622 switch (fc_hdr->fh_r_ctl) {
14623 case FC_RCTL_DD_UNCAT: /* uncategorized information */
14624 case FC_RCTL_DD_SOL_DATA: /* solicited data */
14625 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
14626 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
14627 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
14628 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
14629 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
14630 case FC_RCTL_DD_CMD_STATUS: /* command status */
14631 case FC_RCTL_ELS_REQ: /* extended link services request */
14632 case FC_RCTL_ELS_REP: /* extended link services reply */
14633 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
14634 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
14635 case FC_RCTL_BA_NOP: /* basic link service NOP */
14636 case FC_RCTL_BA_ABTS: /* basic link service abort */
14637 case FC_RCTL_BA_RMC: /* remove connection */
14638 case FC_RCTL_BA_ACC: /* basic accept */
14639 case FC_RCTL_BA_RJT: /* basic reject */
14640 case FC_RCTL_BA_PRMT:
14641 case FC_RCTL_ACK_1: /* acknowledge_1 */
14642 case FC_RCTL_ACK_0: /* acknowledge_0 */
14643 case FC_RCTL_P_RJT: /* port reject */
14644 case FC_RCTL_F_RJT: /* fabric reject */
14645 case FC_RCTL_P_BSY: /* port busy */
14646 case FC_RCTL_F_BSY: /* fabric busy to data frame */
14647 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
14648 case FC_RCTL_LCR: /* link credit reset */
14649 case FC_RCTL_END: /* end */
14651 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
14652 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
14653 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
14654 return lpfc_fc_frame_check(phba, fc_hdr);
14658 switch (fc_hdr->fh_type) {
14670 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
14671 "2538 Received frame rctl:%s (x%x), type:%s (x%x), "
14672 "frame Data:%08x %08x %08x %08x %08x %08x %08x\n",
14673 rctl_names[fc_hdr->fh_r_ctl], fc_hdr->fh_r_ctl,
14674 type_names[fc_hdr->fh_type], fc_hdr->fh_type,
14675 be32_to_cpu(header[0]), be32_to_cpu(header[1]),
14676 be32_to_cpu(header[2]), be32_to_cpu(header[3]),
14677 be32_to_cpu(header[4]), be32_to_cpu(header[5]),
14678 be32_to_cpu(header[6]));
14681 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
14682 "2539 Dropped frame rctl:%s type:%s\n",
14683 rctl_names[fc_hdr->fh_r_ctl],
14684 type_names[fc_hdr->fh_type]);
14689 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
14690 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14692 * This function processes the FC header to retrieve the VFI from the VF
14693 * header, if one exists. This function will return the VFI if one exists
14694 * or 0 if no VSAN Header exists.
14697 lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
14699 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
14701 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
14703 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
14707 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
14708 * @phba: Pointer to the HBA structure to search for the vport on
14709 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14710 * @fcfi: The FC Fabric ID that the frame came from
14712 * This function searches the @phba for a vport that matches the content of the
14713 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
14714 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
14715 * returns the matching vport pointer or NULL if unable to match frame to a
14718 static struct lpfc_vport *
14719 lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
14722 struct lpfc_vport **vports;
14723 struct lpfc_vport *vport = NULL;
14725 uint32_t did = (fc_hdr->fh_d_id[0] << 16 |
14726 fc_hdr->fh_d_id[1] << 8 |
14727 fc_hdr->fh_d_id[2]);
14729 if (did == Fabric_DID)
14730 return phba->pport;
14731 if ((phba->pport->fc_flag & FC_PT2PT) &&
14732 !(phba->link_state == LPFC_HBA_READY))
14733 return phba->pport;
14735 vports = lpfc_create_vport_work_array(phba);
14736 if (vports != NULL)
14737 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
14738 if (phba->fcf.fcfi == fcfi &&
14739 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
14740 vports[i]->fc_myDID == did) {
14745 lpfc_destroy_vport_work_array(phba, vports);
14750 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
14751 * @vport: The vport to work on.
14753 * This function updates the receive sequence time stamp for this vport. The
14754 * receive sequence time stamp indicates the time that the last frame of the
14755 * the sequence that has been idle for the longest amount of time was received.
14756 * the driver uses this time stamp to indicate if any received sequences have
14760 lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
14762 struct lpfc_dmabuf *h_buf;
14763 struct hbq_dmabuf *dmabuf = NULL;
14765 /* get the oldest sequence on the rcv list */
14766 h_buf = list_get_first(&vport->rcv_buffer_list,
14767 struct lpfc_dmabuf, list);
14770 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14771 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
14775 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
14776 * @vport: The vport that the received sequences were sent to.
14778 * This function cleans up all outstanding received sequences. This is called
14779 * by the driver when a link event or user action invalidates all the received
14783 lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
14785 struct lpfc_dmabuf *h_buf, *hnext;
14786 struct lpfc_dmabuf *d_buf, *dnext;
14787 struct hbq_dmabuf *dmabuf = NULL;
14789 /* start with the oldest sequence on the rcv list */
14790 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
14791 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14792 list_del_init(&dmabuf->hbuf.list);
14793 list_for_each_entry_safe(d_buf, dnext,
14794 &dmabuf->dbuf.list, list) {
14795 list_del_init(&d_buf->list);
14796 lpfc_in_buf_free(vport->phba, d_buf);
14798 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
14803 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
14804 * @vport: The vport that the received sequences were sent to.
14806 * This function determines whether any received sequences have timed out by
14807 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
14808 * indicates that there is at least one timed out sequence this routine will
14809 * go through the received sequences one at a time from most inactive to most
14810 * active to determine which ones need to be cleaned up. Once it has determined
14811 * that a sequence needs to be cleaned up it will simply free up the resources
14812 * without sending an abort.
14815 lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
14817 struct lpfc_dmabuf *h_buf, *hnext;
14818 struct lpfc_dmabuf *d_buf, *dnext;
14819 struct hbq_dmabuf *dmabuf = NULL;
14820 unsigned long timeout;
14821 int abort_count = 0;
14823 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
14824 vport->rcv_buffer_time_stamp);
14825 if (list_empty(&vport->rcv_buffer_list) ||
14826 time_before(jiffies, timeout))
14828 /* start with the oldest sequence on the rcv list */
14829 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
14830 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14831 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
14832 dmabuf->time_stamp);
14833 if (time_before(jiffies, timeout))
14836 list_del_init(&dmabuf->hbuf.list);
14837 list_for_each_entry_safe(d_buf, dnext,
14838 &dmabuf->dbuf.list, list) {
14839 list_del_init(&d_buf->list);
14840 lpfc_in_buf_free(vport->phba, d_buf);
14842 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
14845 lpfc_update_rcv_time_stamp(vport);
14849 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
14850 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
14852 * This function searches through the existing incomplete sequences that have
14853 * been sent to this @vport. If the frame matches one of the incomplete
14854 * sequences then the dbuf in the @dmabuf is added to the list of frames that
14855 * make up that sequence. If no sequence is found that matches this frame then
14856 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
14857 * This function returns a pointer to the first dmabuf in the sequence list that
14858 * the frame was linked to.
14860 static struct hbq_dmabuf *
14861 lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
14863 struct fc_frame_header *new_hdr;
14864 struct fc_frame_header *temp_hdr;
14865 struct lpfc_dmabuf *d_buf;
14866 struct lpfc_dmabuf *h_buf;
14867 struct hbq_dmabuf *seq_dmabuf = NULL;
14868 struct hbq_dmabuf *temp_dmabuf = NULL;
14870 INIT_LIST_HEAD(&dmabuf->dbuf.list);
14871 dmabuf->time_stamp = jiffies;
14872 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14873 /* Use the hdr_buf to find the sequence that this frame belongs to */
14874 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
14875 temp_hdr = (struct fc_frame_header *)h_buf->virt;
14876 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
14877 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
14878 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
14880 /* found a pending sequence that matches this frame */
14881 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14886 * This indicates first frame received for this sequence.
14887 * Queue the buffer on the vport's rcv_buffer_list.
14889 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
14890 lpfc_update_rcv_time_stamp(vport);
14893 temp_hdr = seq_dmabuf->hbuf.virt;
14894 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
14895 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
14896 list_del_init(&seq_dmabuf->hbuf.list);
14897 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
14898 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
14899 lpfc_update_rcv_time_stamp(vport);
14902 /* move this sequence to the tail to indicate a young sequence */
14903 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
14904 seq_dmabuf->time_stamp = jiffies;
14905 lpfc_update_rcv_time_stamp(vport);
14906 if (list_empty(&seq_dmabuf->dbuf.list)) {
14907 temp_hdr = dmabuf->hbuf.virt;
14908 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
14911 /* find the correct place in the sequence to insert this frame */
14912 list_for_each_entry_reverse(d_buf, &seq_dmabuf->dbuf.list, list) {
14913 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14914 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
14916 * If the frame's sequence count is greater than the frame on
14917 * the list then insert the frame right after this frame
14919 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
14920 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
14921 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
14929 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
14930 * @vport: pointer to a vitural port
14931 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14933 * This function tries to abort from the partially assembed sequence, described
14934 * by the information from basic abbort @dmabuf. It checks to see whether such
14935 * partially assembled sequence held by the driver. If so, it shall free up all
14936 * the frames from the partially assembled sequence.
14939 * true -- if there is matching partially assembled sequence present and all
14940 * the frames freed with the sequence;
14941 * false -- if there is no matching partially assembled sequence present so
14942 * nothing got aborted in the lower layer driver
14945 lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
14946 struct hbq_dmabuf *dmabuf)
14948 struct fc_frame_header *new_hdr;
14949 struct fc_frame_header *temp_hdr;
14950 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
14951 struct hbq_dmabuf *seq_dmabuf = NULL;
14953 /* Use the hdr_buf to find the sequence that matches this frame */
14954 INIT_LIST_HEAD(&dmabuf->dbuf.list);
14955 INIT_LIST_HEAD(&dmabuf->hbuf.list);
14956 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14957 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
14958 temp_hdr = (struct fc_frame_header *)h_buf->virt;
14959 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
14960 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
14961 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
14963 /* found a pending sequence that matches this frame */
14964 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14968 /* Free up all the frames from the partially assembled sequence */
14970 list_for_each_entry_safe(d_buf, n_buf,
14971 &seq_dmabuf->dbuf.list, list) {
14972 list_del_init(&d_buf->list);
14973 lpfc_in_buf_free(vport->phba, d_buf);
14981 * lpfc_sli4_abort_ulp_seq - Abort assembled unsol sequence from ulp
14982 * @vport: pointer to a vitural port
14983 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14985 * This function tries to abort from the assembed sequence from upper level
14986 * protocol, described by the information from basic abbort @dmabuf. It
14987 * checks to see whether such pending context exists at upper level protocol.
14988 * If so, it shall clean up the pending context.
14991 * true -- if there is matching pending context of the sequence cleaned
14993 * false -- if there is no matching pending context of the sequence present
14997 lpfc_sli4_abort_ulp_seq(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
14999 struct lpfc_hba *phba = vport->phba;
15002 /* Accepting abort at ulp with SLI4 only */
15003 if (phba->sli_rev < LPFC_SLI_REV4)
15006 /* Register all caring upper level protocols to attend abort */
15007 handled = lpfc_ct_handle_unsol_abort(phba, dmabuf);
15015 * lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler
15016 * @phba: Pointer to HBA context object.
15017 * @cmd_iocbq: pointer to the command iocbq structure.
15018 * @rsp_iocbq: pointer to the response iocbq structure.
15020 * This function handles the sequence abort response iocb command complete
15021 * event. It properly releases the memory allocated to the sequence abort
15025 lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba *phba,
15026 struct lpfc_iocbq *cmd_iocbq,
15027 struct lpfc_iocbq *rsp_iocbq)
15029 struct lpfc_nodelist *ndlp;
15032 ndlp = (struct lpfc_nodelist *)cmd_iocbq->context1;
15033 lpfc_nlp_put(ndlp);
15034 lpfc_nlp_not_used(ndlp);
15035 lpfc_sli_release_iocbq(phba, cmd_iocbq);
15038 /* Failure means BLS ABORT RSP did not get delivered to remote node*/
15039 if (rsp_iocbq && rsp_iocbq->iocb.ulpStatus)
15040 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15041 "3154 BLS ABORT RSP failed, data: x%x/x%x\n",
15042 rsp_iocbq->iocb.ulpStatus,
15043 rsp_iocbq->iocb.un.ulpWord[4]);
15047 * lpfc_sli4_xri_inrange - check xri is in range of xris owned by driver.
15048 * @phba: Pointer to HBA context object.
15049 * @xri: xri id in transaction.
15051 * This function validates the xri maps to the known range of XRIs allocated an
15052 * used by the driver.
15055 lpfc_sli4_xri_inrange(struct lpfc_hba *phba,
15060 for (i = 0; i < phba->sli4_hba.max_cfg_param.max_xri; i++) {
15061 if (xri == phba->sli4_hba.xri_ids[i])
15068 * lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort
15069 * @phba: Pointer to HBA context object.
15070 * @fc_hdr: pointer to a FC frame header.
15072 * This function sends a basic response to a previous unsol sequence abort
15073 * event after aborting the sequence handling.
15076 lpfc_sli4_seq_abort_rsp(struct lpfc_vport *vport,
15077 struct fc_frame_header *fc_hdr, bool aborted)
15079 struct lpfc_hba *phba = vport->phba;
15080 struct lpfc_iocbq *ctiocb = NULL;
15081 struct lpfc_nodelist *ndlp;
15082 uint16_t oxid, rxid, xri, lxri;
15083 uint32_t sid, fctl;
15087 if (!lpfc_is_link_up(phba))
15090 sid = sli4_sid_from_fc_hdr(fc_hdr);
15091 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
15092 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
15094 ndlp = lpfc_findnode_did(vport, sid);
15096 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
15098 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
15099 "1268 Failed to allocate ndlp for "
15100 "oxid:x%x SID:x%x\n", oxid, sid);
15103 lpfc_nlp_init(vport, ndlp, sid);
15104 /* Put ndlp onto pport node list */
15105 lpfc_enqueue_node(vport, ndlp);
15106 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
15107 /* re-setup ndlp without removing from node list */
15108 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
15110 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
15111 "3275 Failed to active ndlp found "
15112 "for oxid:x%x SID:x%x\n", oxid, sid);
15117 /* Allocate buffer for rsp iocb */
15118 ctiocb = lpfc_sli_get_iocbq(phba);
15122 /* Extract the F_CTL field from FC_HDR */
15123 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
15125 icmd = &ctiocb->iocb;
15126 icmd->un.xseq64.bdl.bdeSize = 0;
15127 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
15128 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
15129 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
15130 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
15132 /* Fill in the rest of iocb fields */
15133 icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
15134 icmd->ulpBdeCount = 0;
15136 icmd->ulpClass = CLASS3;
15137 icmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
15138 ctiocb->context1 = lpfc_nlp_get(ndlp);
15140 ctiocb->iocb_cmpl = NULL;
15141 ctiocb->vport = phba->pport;
15142 ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_rsp_cmpl;
15143 ctiocb->sli4_lxritag = NO_XRI;
15144 ctiocb->sli4_xritag = NO_XRI;
15146 if (fctl & FC_FC_EX_CTX)
15147 /* Exchange responder sent the abort so we
15153 lxri = lpfc_sli4_xri_inrange(phba, xri);
15154 if (lxri != NO_XRI)
15155 lpfc_set_rrq_active(phba, ndlp, lxri,
15156 (xri == oxid) ? rxid : oxid, 0);
15157 /* For BA_ABTS from exchange responder, if the logical xri with
15158 * the oxid maps to the FCP XRI range, the port no longer has
15159 * that exchange context, send a BLS_RJT. Override the IOCB for
15162 if ((fctl & FC_FC_EX_CTX) &&
15163 (lxri > lpfc_sli4_get_els_iocb_cnt(phba))) {
15164 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
15165 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
15166 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
15167 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
15170 /* If BA_ABTS failed to abort a partially assembled receive sequence,
15171 * the driver no longer has that exchange, send a BLS_RJT. Override
15172 * the IOCB for a BA_RJT.
15174 if (aborted == false) {
15175 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
15176 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
15177 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
15178 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
15181 if (fctl & FC_FC_EX_CTX) {
15182 /* ABTS sent by responder to CT exchange, construction
15183 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
15184 * field and RX_ID from ABTS for RX_ID field.
15186 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_RSP);
15188 /* ABTS sent by initiator to CT exchange, construction
15189 * of BA_ACC will need to allocate a new XRI as for the
15192 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_INT);
15194 bf_set(lpfc_abts_rxid, &icmd->un.bls_rsp, rxid);
15195 bf_set(lpfc_abts_oxid, &icmd->un.bls_rsp, oxid);
15197 /* Xmit CT abts response on exchange <xid> */
15198 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
15199 "1200 Send BLS cmd x%x on oxid x%x Data: x%x\n",
15200 icmd->un.xseq64.w5.hcsw.Rctl, oxid, phba->link_state);
15202 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
15203 if (rc == IOCB_ERROR) {
15204 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
15205 "2925 Failed to issue CT ABTS RSP x%x on "
15206 "xri x%x, Data x%x\n",
15207 icmd->un.xseq64.w5.hcsw.Rctl, oxid,
15209 lpfc_nlp_put(ndlp);
15210 ctiocb->context1 = NULL;
15211 lpfc_sli_release_iocbq(phba, ctiocb);
15216 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
15217 * @vport: Pointer to the vport on which this sequence was received
15218 * @dmabuf: pointer to a dmabuf that describes the FC sequence
15220 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
15221 * receive sequence is only partially assembed by the driver, it shall abort
15222 * the partially assembled frames for the sequence. Otherwise, if the
15223 * unsolicited receive sequence has been completely assembled and passed to
15224 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
15225 * unsolicited sequence has been aborted. After that, it will issue a basic
15226 * accept to accept the abort.
15229 lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
15230 struct hbq_dmabuf *dmabuf)
15232 struct lpfc_hba *phba = vport->phba;
15233 struct fc_frame_header fc_hdr;
15237 /* Make a copy of fc_hdr before the dmabuf being released */
15238 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
15239 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
15241 if (fctl & FC_FC_EX_CTX) {
15242 /* ABTS by responder to exchange, no cleanup needed */
15245 /* ABTS by initiator to exchange, need to do cleanup */
15246 aborted = lpfc_sli4_abort_partial_seq(vport, dmabuf);
15247 if (aborted == false)
15248 aborted = lpfc_sli4_abort_ulp_seq(vport, dmabuf);
15250 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15252 /* Respond with BA_ACC or BA_RJT accordingly */
15253 lpfc_sli4_seq_abort_rsp(vport, &fc_hdr, aborted);
15257 * lpfc_seq_complete - Indicates if a sequence is complete
15258 * @dmabuf: pointer to a dmabuf that describes the FC sequence
15260 * This function checks the sequence, starting with the frame described by
15261 * @dmabuf, to see if all the frames associated with this sequence are present.
15262 * the frames associated with this sequence are linked to the @dmabuf using the
15263 * dbuf list. This function looks for two major things. 1) That the first frame
15264 * has a sequence count of zero. 2) There is a frame with last frame of sequence
15265 * set. 3) That there are no holes in the sequence count. The function will
15266 * return 1 when the sequence is complete, otherwise it will return 0.
15269 lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
15271 struct fc_frame_header *hdr;
15272 struct lpfc_dmabuf *d_buf;
15273 struct hbq_dmabuf *seq_dmabuf;
15277 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
15278 /* make sure first fame of sequence has a sequence count of zero */
15279 if (hdr->fh_seq_cnt != seq_count)
15281 fctl = (hdr->fh_f_ctl[0] << 16 |
15282 hdr->fh_f_ctl[1] << 8 |
15284 /* If last frame of sequence we can return success. */
15285 if (fctl & FC_FC_END_SEQ)
15287 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
15288 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
15289 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
15290 /* If there is a hole in the sequence count then fail. */
15291 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
15293 fctl = (hdr->fh_f_ctl[0] << 16 |
15294 hdr->fh_f_ctl[1] << 8 |
15296 /* If last frame of sequence we can return success. */
15297 if (fctl & FC_FC_END_SEQ)
15304 * lpfc_prep_seq - Prep sequence for ULP processing
15305 * @vport: Pointer to the vport on which this sequence was received
15306 * @dmabuf: pointer to a dmabuf that describes the FC sequence
15308 * This function takes a sequence, described by a list of frames, and creates
15309 * a list of iocbq structures to describe the sequence. This iocbq list will be
15310 * used to issue to the generic unsolicited sequence handler. This routine
15311 * returns a pointer to the first iocbq in the list. If the function is unable
15312 * to allocate an iocbq then it throw out the received frames that were not
15313 * able to be described and return a pointer to the first iocbq. If unable to
15314 * allocate any iocbqs (including the first) this function will return NULL.
15316 static struct lpfc_iocbq *
15317 lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
15319 struct hbq_dmabuf *hbq_buf;
15320 struct lpfc_dmabuf *d_buf, *n_buf;
15321 struct lpfc_iocbq *first_iocbq, *iocbq;
15322 struct fc_frame_header *fc_hdr;
15324 uint32_t len, tot_len;
15325 struct ulp_bde64 *pbde;
15327 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
15328 /* remove from receive buffer list */
15329 list_del_init(&seq_dmabuf->hbuf.list);
15330 lpfc_update_rcv_time_stamp(vport);
15331 /* get the Remote Port's SID */
15332 sid = sli4_sid_from_fc_hdr(fc_hdr);
15334 /* Get an iocbq struct to fill in. */
15335 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
15337 /* Initialize the first IOCB. */
15338 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
15339 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
15341 /* Check FC Header to see what TYPE of frame we are rcv'ing */
15342 if (sli4_type_from_fc_hdr(fc_hdr) == FC_TYPE_ELS) {
15343 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_ELS64_CX;
15344 first_iocbq->iocb.un.rcvels.parmRo =
15345 sli4_did_from_fc_hdr(fc_hdr);
15346 first_iocbq->iocb.ulpPU = PARM_NPIV_DID;
15348 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
15349 first_iocbq->iocb.ulpContext = NO_XRI;
15350 first_iocbq->iocb.unsli3.rcvsli3.ox_id =
15351 be16_to_cpu(fc_hdr->fh_ox_id);
15352 /* iocbq is prepped for internal consumption. Physical vpi. */
15353 first_iocbq->iocb.unsli3.rcvsli3.vpi =
15354 vport->phba->vpi_ids[vport->vpi];
15355 /* put the first buffer into the first IOCBq */
15356 tot_len = bf_get(lpfc_rcqe_length,
15357 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
15359 first_iocbq->context2 = &seq_dmabuf->dbuf;
15360 first_iocbq->context3 = NULL;
15361 first_iocbq->iocb.ulpBdeCount = 1;
15362 if (tot_len > LPFC_DATA_BUF_SIZE)
15363 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
15364 LPFC_DATA_BUF_SIZE;
15366 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize = tot_len;
15368 first_iocbq->iocb.un.rcvels.remoteID = sid;
15370 first_iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
15372 iocbq = first_iocbq;
15374 * Each IOCBq can have two Buffers assigned, so go through the list
15375 * of buffers for this sequence and save two buffers in each IOCBq
15377 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
15379 lpfc_in_buf_free(vport->phba, d_buf);
15382 if (!iocbq->context3) {
15383 iocbq->context3 = d_buf;
15384 iocbq->iocb.ulpBdeCount++;
15385 /* We need to get the size out of the right CQE */
15386 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
15387 len = bf_get(lpfc_rcqe_length,
15388 &hbq_buf->cq_event.cqe.rcqe_cmpl);
15389 pbde = (struct ulp_bde64 *)
15390 &iocbq->iocb.unsli3.sli3Words[4];
15391 if (len > LPFC_DATA_BUF_SIZE)
15392 pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
15394 pbde->tus.f.bdeSize = len;
15396 iocbq->iocb.unsli3.rcvsli3.acc_len += len;
15399 iocbq = lpfc_sli_get_iocbq(vport->phba);
15402 first_iocbq->iocb.ulpStatus =
15403 IOSTAT_FCP_RSP_ERROR;
15404 first_iocbq->iocb.un.ulpWord[4] =
15405 IOERR_NO_RESOURCES;
15407 lpfc_in_buf_free(vport->phba, d_buf);
15410 /* We need to get the size out of the right CQE */
15411 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
15412 len = bf_get(lpfc_rcqe_length,
15413 &hbq_buf->cq_event.cqe.rcqe_cmpl);
15414 iocbq->context2 = d_buf;
15415 iocbq->context3 = NULL;
15416 iocbq->iocb.ulpBdeCount = 1;
15417 if (len > LPFC_DATA_BUF_SIZE)
15418 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
15419 LPFC_DATA_BUF_SIZE;
15421 iocbq->iocb.un.cont64[0].tus.f.bdeSize = len;
15424 iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
15426 iocbq->iocb.un.rcvels.remoteID = sid;
15427 list_add_tail(&iocbq->list, &first_iocbq->list);
15430 return first_iocbq;
15434 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
15435 struct hbq_dmabuf *seq_dmabuf)
15437 struct fc_frame_header *fc_hdr;
15438 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
15439 struct lpfc_hba *phba = vport->phba;
15441 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
15442 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
15444 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15445 "2707 Ring %d handler: Failed to allocate "
15446 "iocb Rctl x%x Type x%x received\n",
15448 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
15451 if (!lpfc_complete_unsol_iocb(phba,
15452 &phba->sli.ring[LPFC_ELS_RING],
15453 iocbq, fc_hdr->fh_r_ctl,
15455 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15456 "2540 Ring %d handler: unexpected Rctl "
15457 "x%x Type x%x received\n",
15459 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
15461 /* Free iocb created in lpfc_prep_seq */
15462 list_for_each_entry_safe(curr_iocb, next_iocb,
15463 &iocbq->list, list) {
15464 list_del_init(&curr_iocb->list);
15465 lpfc_sli_release_iocbq(phba, curr_iocb);
15467 lpfc_sli_release_iocbq(phba, iocbq);
15471 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
15472 * @phba: Pointer to HBA context object.
15474 * This function is called with no lock held. This function processes all
15475 * the received buffers and gives it to upper layers when a received buffer
15476 * indicates that it is the final frame in the sequence. The interrupt
15477 * service routine processes received buffers at interrupt contexts and adds
15478 * received dma buffers to the rb_pend_list queue and signals the worker thread.
15479 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
15480 * appropriate receive function when the final frame in a sequence is received.
15483 lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
15484 struct hbq_dmabuf *dmabuf)
15486 struct hbq_dmabuf *seq_dmabuf;
15487 struct fc_frame_header *fc_hdr;
15488 struct lpfc_vport *vport;
15492 /* Process each received buffer */
15493 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
15494 /* check to see if this a valid type of frame */
15495 if (lpfc_fc_frame_check(phba, fc_hdr)) {
15496 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15499 if ((bf_get(lpfc_cqe_code,
15500 &dmabuf->cq_event.cqe.rcqe_cmpl) == CQE_CODE_RECEIVE_V1))
15501 fcfi = bf_get(lpfc_rcqe_fcf_id_v1,
15502 &dmabuf->cq_event.cqe.rcqe_cmpl);
15504 fcfi = bf_get(lpfc_rcqe_fcf_id,
15505 &dmabuf->cq_event.cqe.rcqe_cmpl);
15507 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi);
15509 /* throw out the frame */
15510 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15514 /* d_id this frame is directed to */
15515 did = sli4_did_from_fc_hdr(fc_hdr);
15517 /* vport is registered unless we rcv a FLOGI directed to Fabric_DID */
15518 if (!(vport->vpi_state & LPFC_VPI_REGISTERED) &&
15519 (did != Fabric_DID)) {
15521 * Throw out the frame if we are not pt2pt.
15522 * The pt2pt protocol allows for discovery frames
15523 * to be received without a registered VPI.
15525 if (!(vport->fc_flag & FC_PT2PT) ||
15526 (phba->link_state == LPFC_HBA_READY)) {
15527 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15532 /* Handle the basic abort sequence (BA_ABTS) event */
15533 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
15534 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
15538 /* Link this frame */
15539 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
15541 /* unable to add frame to vport - throw it out */
15542 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15545 /* If not last frame in sequence continue processing frames. */
15546 if (!lpfc_seq_complete(seq_dmabuf))
15549 /* Send the complete sequence to the upper layer protocol */
15550 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
15554 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
15555 * @phba: pointer to lpfc hba data structure.
15557 * This routine is invoked to post rpi header templates to the
15558 * HBA consistent with the SLI-4 interface spec. This routine
15559 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
15560 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
15562 * This routine does not require any locks. It's usage is expected
15563 * to be driver load or reset recovery when the driver is
15568 * -EIO - The mailbox failed to complete successfully.
15569 * When this error occurs, the driver is not guaranteed
15570 * to have any rpi regions posted to the device and
15571 * must either attempt to repost the regions or take a
15575 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
15577 struct lpfc_rpi_hdr *rpi_page;
15581 /* SLI4 ports that support extents do not require RPI headers. */
15582 if (!phba->sli4_hba.rpi_hdrs_in_use)
15584 if (phba->sli4_hba.extents_in_use)
15587 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
15589 * Assign the rpi headers a physical rpi only if the driver
15590 * has not initialized those resources. A port reset only
15591 * needs the headers posted.
15593 if (bf_get(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags) !=
15595 rpi_page->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
15597 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
15598 if (rc != MBX_SUCCESS) {
15599 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15600 "2008 Error %d posting all rpi "
15608 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags,
15609 LPFC_RPI_RSRC_RDY);
15614 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
15615 * @phba: pointer to lpfc hba data structure.
15616 * @rpi_page: pointer to the rpi memory region.
15618 * This routine is invoked to post a single rpi header to the
15619 * HBA consistent with the SLI-4 interface spec. This memory region
15620 * maps up to 64 rpi context regions.
15624 * -ENOMEM - No available memory
15625 * -EIO - The mailbox failed to complete successfully.
15628 lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
15630 LPFC_MBOXQ_t *mboxq;
15631 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
15633 uint32_t shdr_status, shdr_add_status;
15634 union lpfc_sli4_cfg_shdr *shdr;
15636 /* SLI4 ports that support extents do not require RPI headers. */
15637 if (!phba->sli4_hba.rpi_hdrs_in_use)
15639 if (phba->sli4_hba.extents_in_use)
15642 /* The port is notified of the header region via a mailbox command. */
15643 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15645 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15646 "2001 Unable to allocate memory for issuing "
15647 "SLI_CONFIG_SPECIAL mailbox command\n");
15651 /* Post all rpi memory regions to the port. */
15652 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
15653 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
15654 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
15655 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
15656 sizeof(struct lpfc_sli4_cfg_mhdr),
15657 LPFC_SLI4_MBX_EMBED);
15660 /* Post the physical rpi to the port for this rpi header. */
15661 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
15662 rpi_page->start_rpi);
15663 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
15664 hdr_tmpl, rpi_page->page_count);
15666 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
15667 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
15668 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
15669 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
15670 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15671 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15672 if (rc != MBX_TIMEOUT)
15673 mempool_free(mboxq, phba->mbox_mem_pool);
15674 if (shdr_status || shdr_add_status || rc) {
15675 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15676 "2514 POST_RPI_HDR mailbox failed with "
15677 "status x%x add_status x%x, mbx status x%x\n",
15678 shdr_status, shdr_add_status, rc);
15685 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
15686 * @phba: pointer to lpfc hba data structure.
15688 * This routine is invoked to post rpi header templates to the
15689 * HBA consistent with the SLI-4 interface spec. This routine
15690 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
15691 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
15694 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
15695 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
15698 lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
15701 uint16_t max_rpi, rpi_limit;
15702 uint16_t rpi_remaining, lrpi = 0;
15703 struct lpfc_rpi_hdr *rpi_hdr;
15704 unsigned long iflag;
15707 * Fetch the next logical rpi. Because this index is logical,
15708 * the driver starts at 0 each time.
15710 spin_lock_irqsave(&phba->hbalock, iflag);
15711 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
15712 rpi_limit = phba->sli4_hba.next_rpi;
15714 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, 0);
15715 if (rpi >= rpi_limit)
15716 rpi = LPFC_RPI_ALLOC_ERROR;
15718 set_bit(rpi, phba->sli4_hba.rpi_bmask);
15719 phba->sli4_hba.max_cfg_param.rpi_used++;
15720 phba->sli4_hba.rpi_count++;
15722 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
15723 "0001 rpi:%x max:%x lim:%x\n",
15724 (int) rpi, max_rpi, rpi_limit);
15727 * Don't try to allocate more rpi header regions if the device limit
15728 * has been exhausted.
15730 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
15731 (phba->sli4_hba.rpi_count >= max_rpi)) {
15732 spin_unlock_irqrestore(&phba->hbalock, iflag);
15737 * RPI header postings are not required for SLI4 ports capable of
15740 if (!phba->sli4_hba.rpi_hdrs_in_use) {
15741 spin_unlock_irqrestore(&phba->hbalock, iflag);
15746 * If the driver is running low on rpi resources, allocate another
15747 * page now. Note that the next_rpi value is used because
15748 * it represents how many are actually in use whereas max_rpi notes
15749 * how many are supported max by the device.
15751 rpi_remaining = phba->sli4_hba.next_rpi - phba->sli4_hba.rpi_count;
15752 spin_unlock_irqrestore(&phba->hbalock, iflag);
15753 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
15754 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
15756 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15757 "2002 Error Could not grow rpi "
15760 lrpi = rpi_hdr->start_rpi;
15761 rpi_hdr->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
15762 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
15770 * lpfc_sli4_free_rpi - Release an rpi for reuse.
15771 * @phba: pointer to lpfc hba data structure.
15773 * This routine is invoked to release an rpi to the pool of
15774 * available rpis maintained by the driver.
15777 __lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
15779 if (test_and_clear_bit(rpi, phba->sli4_hba.rpi_bmask)) {
15780 phba->sli4_hba.rpi_count--;
15781 phba->sli4_hba.max_cfg_param.rpi_used--;
15786 * lpfc_sli4_free_rpi - Release an rpi for reuse.
15787 * @phba: pointer to lpfc hba data structure.
15789 * This routine is invoked to release an rpi to the pool of
15790 * available rpis maintained by the driver.
15793 lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
15795 spin_lock_irq(&phba->hbalock);
15796 __lpfc_sli4_free_rpi(phba, rpi);
15797 spin_unlock_irq(&phba->hbalock);
15801 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
15802 * @phba: pointer to lpfc hba data structure.
15804 * This routine is invoked to remove the memory region that
15805 * provided rpi via a bitmask.
15808 lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
15810 kfree(phba->sli4_hba.rpi_bmask);
15811 kfree(phba->sli4_hba.rpi_ids);
15812 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
15816 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
15817 * @phba: pointer to lpfc hba data structure.
15819 * This routine is invoked to remove the memory region that
15820 * provided rpi via a bitmask.
15823 lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp,
15824 void (*cmpl)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *arg)
15826 LPFC_MBOXQ_t *mboxq;
15827 struct lpfc_hba *phba = ndlp->phba;
15830 /* The port is notified of the header region via a mailbox command. */
15831 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15835 /* Post all rpi memory regions to the port. */
15836 lpfc_resume_rpi(mboxq, ndlp);
15838 mboxq->mbox_cmpl = cmpl;
15839 mboxq->context1 = arg;
15840 mboxq->context2 = ndlp;
15842 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15843 mboxq->vport = ndlp->vport;
15844 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15845 if (rc == MBX_NOT_FINISHED) {
15846 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15847 "2010 Resume RPI Mailbox failed "
15848 "status %d, mbxStatus x%x\n", rc,
15849 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
15850 mempool_free(mboxq, phba->mbox_mem_pool);
15857 * lpfc_sli4_init_vpi - Initialize a vpi with the port
15858 * @vport: Pointer to the vport for which the vpi is being initialized
15860 * This routine is invoked to activate a vpi with the port.
15864 * -Evalue otherwise
15867 lpfc_sli4_init_vpi(struct lpfc_vport *vport)
15869 LPFC_MBOXQ_t *mboxq;
15871 int retval = MBX_SUCCESS;
15873 struct lpfc_hba *phba = vport->phba;
15874 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15877 lpfc_init_vpi(phba, mboxq, vport->vpi);
15878 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
15879 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
15880 if (rc != MBX_SUCCESS) {
15881 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
15882 "2022 INIT VPI Mailbox failed "
15883 "status %d, mbxStatus x%x\n", rc,
15884 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
15887 if (rc != MBX_TIMEOUT)
15888 mempool_free(mboxq, vport->phba->mbox_mem_pool);
15894 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
15895 * @phba: pointer to lpfc hba data structure.
15896 * @mboxq: Pointer to mailbox object.
15898 * This routine is invoked to manually add a single FCF record. The caller
15899 * must pass a completely initialized FCF_Record. This routine takes
15900 * care of the nonembedded mailbox operations.
15903 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
15906 union lpfc_sli4_cfg_shdr *shdr;
15907 uint32_t shdr_status, shdr_add_status;
15909 virt_addr = mboxq->sge_array->addr[0];
15910 /* The IOCTL status is embedded in the mailbox subheader. */
15911 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
15912 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15913 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15915 if ((shdr_status || shdr_add_status) &&
15916 (shdr_status != STATUS_FCF_IN_USE))
15917 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15918 "2558 ADD_FCF_RECORD mailbox failed with "
15919 "status x%x add_status x%x\n",
15920 shdr_status, shdr_add_status);
15922 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15926 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
15927 * @phba: pointer to lpfc hba data structure.
15928 * @fcf_record: pointer to the initialized fcf record to add.
15930 * This routine is invoked to manually add a single FCF record. The caller
15931 * must pass a completely initialized FCF_Record. This routine takes
15932 * care of the nonembedded mailbox operations.
15935 lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
15938 LPFC_MBOXQ_t *mboxq;
15941 dma_addr_t phys_addr;
15942 struct lpfc_mbx_sge sge;
15943 uint32_t alloc_len, req_len;
15946 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15948 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15949 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
15953 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
15956 /* Allocate DMA memory and set up the non-embedded mailbox command */
15957 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
15958 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
15959 req_len, LPFC_SLI4_MBX_NEMBED);
15960 if (alloc_len < req_len) {
15961 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15962 "2523 Allocated DMA memory size (x%x) is "
15963 "less than the requested DMA memory "
15964 "size (x%x)\n", alloc_len, req_len);
15965 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15970 * Get the first SGE entry from the non-embedded DMA memory. This
15971 * routine only uses a single SGE.
15973 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
15974 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
15975 virt_addr = mboxq->sge_array->addr[0];
15977 * Configure the FCF record for FCFI 0. This is the driver's
15978 * hardcoded default and gets used in nonFIP mode.
15980 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
15981 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
15982 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
15985 * Copy the fcf_index and the FCF Record Data. The data starts after
15986 * the FCoE header plus word10. The data copy needs to be endian
15989 bytep += sizeof(uint32_t);
15990 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
15991 mboxq->vport = phba->pport;
15992 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
15993 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15994 if (rc == MBX_NOT_FINISHED) {
15995 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15996 "2515 ADD_FCF_RECORD mailbox failed with "
15997 "status 0x%x\n", rc);
15998 lpfc_sli4_mbox_cmd_free(phba, mboxq);
16007 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
16008 * @phba: pointer to lpfc hba data structure.
16009 * @fcf_record: pointer to the fcf record to write the default data.
16010 * @fcf_index: FCF table entry index.
16012 * This routine is invoked to build the driver's default FCF record. The
16013 * values used are hardcoded. This routine handles memory initialization.
16017 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
16018 struct fcf_record *fcf_record,
16019 uint16_t fcf_index)
16021 memset(fcf_record, 0, sizeof(struct fcf_record));
16022 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
16023 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
16024 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
16025 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
16026 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
16027 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
16028 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
16029 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
16030 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
16031 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
16032 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
16033 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
16034 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
16035 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
16036 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
16037 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
16038 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
16039 /* Set the VLAN bit map */
16040 if (phba->valid_vlan) {
16041 fcf_record->vlan_bitmap[phba->vlan_id / 8]
16042 = 1 << (phba->vlan_id % 8);
16047 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
16048 * @phba: pointer to lpfc hba data structure.
16049 * @fcf_index: FCF table entry offset.
16051 * This routine is invoked to scan the entire FCF table by reading FCF
16052 * record and processing it one at a time starting from the @fcf_index
16053 * for initial FCF discovery or fast FCF failover rediscovery.
16055 * Return 0 if the mailbox command is submitted successfully, none 0
16059 lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
16062 LPFC_MBOXQ_t *mboxq;
16064 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
16065 phba->fcoe_cvl_eventtag_attn = phba->fcoe_cvl_eventtag;
16066 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16068 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16069 "2000 Failed to allocate mbox for "
16072 goto fail_fcf_scan;
16074 /* Construct the read FCF record mailbox command */
16075 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
16078 goto fail_fcf_scan;
16080 /* Issue the mailbox command asynchronously */
16081 mboxq->vport = phba->pport;
16082 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
16084 spin_lock_irq(&phba->hbalock);
16085 phba->hba_flag |= FCF_TS_INPROG;
16086 spin_unlock_irq(&phba->hbalock);
16088 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
16089 if (rc == MBX_NOT_FINISHED)
16092 /* Reset eligible FCF count for new scan */
16093 if (fcf_index == LPFC_FCOE_FCF_GET_FIRST)
16094 phba->fcf.eligible_fcf_cnt = 0;
16100 lpfc_sli4_mbox_cmd_free(phba, mboxq);
16101 /* FCF scan failed, clear FCF_TS_INPROG flag */
16102 spin_lock_irq(&phba->hbalock);
16103 phba->hba_flag &= ~FCF_TS_INPROG;
16104 spin_unlock_irq(&phba->hbalock);
16110 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
16111 * @phba: pointer to lpfc hba data structure.
16112 * @fcf_index: FCF table entry offset.
16114 * This routine is invoked to read an FCF record indicated by @fcf_index
16115 * and to use it for FLOGI roundrobin FCF failover.
16117 * Return 0 if the mailbox command is submitted successfully, none 0
16121 lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
16124 LPFC_MBOXQ_t *mboxq;
16126 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16128 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
16129 "2763 Failed to allocate mbox for "
16132 goto fail_fcf_read;
16134 /* Construct the read FCF record mailbox command */
16135 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
16138 goto fail_fcf_read;
16140 /* Issue the mailbox command asynchronously */
16141 mboxq->vport = phba->pport;
16142 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
16143 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
16144 if (rc == MBX_NOT_FINISHED)
16150 if (error && mboxq)
16151 lpfc_sli4_mbox_cmd_free(phba, mboxq);
16156 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
16157 * @phba: pointer to lpfc hba data structure.
16158 * @fcf_index: FCF table entry offset.
16160 * This routine is invoked to read an FCF record indicated by @fcf_index to
16161 * determine whether it's eligible for FLOGI roundrobin failover list.
16163 * Return 0 if the mailbox command is submitted successfully, none 0
16167 lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
16170 LPFC_MBOXQ_t *mboxq;
16172 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16174 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
16175 "2758 Failed to allocate mbox for "
16178 goto fail_fcf_read;
16180 /* Construct the read FCF record mailbox command */
16181 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
16184 goto fail_fcf_read;
16186 /* Issue the mailbox command asynchronously */
16187 mboxq->vport = phba->pport;
16188 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
16189 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
16190 if (rc == MBX_NOT_FINISHED)
16196 if (error && mboxq)
16197 lpfc_sli4_mbox_cmd_free(phba, mboxq);
16202 * lpfc_check_next_fcf_pri
16203 * phba pointer to the lpfc_hba struct for this port.
16204 * This routine is called from the lpfc_sli4_fcf_rr_next_index_get
16205 * routine when the rr_bmask is empty. The FCF indecies are put into the
16206 * rr_bmask based on their priority level. Starting from the highest priority
16207 * to the lowest. The most likely FCF candidate will be in the highest
16208 * priority group. When this routine is called it searches the fcf_pri list for
16209 * next lowest priority group and repopulates the rr_bmask with only those
16212 * 1=success 0=failure
16215 lpfc_check_next_fcf_pri_level(struct lpfc_hba *phba)
16217 uint16_t next_fcf_pri;
16218 uint16_t last_index;
16219 struct lpfc_fcf_pri *fcf_pri;
16223 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
16224 LPFC_SLI4_FCF_TBL_INDX_MAX);
16225 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
16226 "3060 Last IDX %d\n", last_index);
16228 /* Verify the priority list has 2 or more entries */
16229 spin_lock_irq(&phba->hbalock);
16230 if (list_empty(&phba->fcf.fcf_pri_list) ||
16231 list_is_singular(&phba->fcf.fcf_pri_list)) {
16232 spin_unlock_irq(&phba->hbalock);
16233 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
16234 "3061 Last IDX %d\n", last_index);
16235 return 0; /* Empty rr list */
16237 spin_unlock_irq(&phba->hbalock);
16241 * Clear the rr_bmask and set all of the bits that are at this
16244 memset(phba->fcf.fcf_rr_bmask, 0,
16245 sizeof(*phba->fcf.fcf_rr_bmask));
16246 spin_lock_irq(&phba->hbalock);
16247 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
16248 if (fcf_pri->fcf_rec.flag & LPFC_FCF_FLOGI_FAILED)
16251 * the 1st priority that has not FLOGI failed
16252 * will be the highest.
16255 next_fcf_pri = fcf_pri->fcf_rec.priority;
16256 spin_unlock_irq(&phba->hbalock);
16257 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
16258 rc = lpfc_sli4_fcf_rr_index_set(phba,
16259 fcf_pri->fcf_rec.fcf_index);
16263 spin_lock_irq(&phba->hbalock);
16266 * if next_fcf_pri was not set above and the list is not empty then
16267 * we have failed flogis on all of them. So reset flogi failed
16268 * and start at the beginning.
16270 if (!next_fcf_pri && !list_empty(&phba->fcf.fcf_pri_list)) {
16271 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
16272 fcf_pri->fcf_rec.flag &= ~LPFC_FCF_FLOGI_FAILED;
16274 * the 1st priority that has not FLOGI failed
16275 * will be the highest.
16278 next_fcf_pri = fcf_pri->fcf_rec.priority;
16279 spin_unlock_irq(&phba->hbalock);
16280 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
16281 rc = lpfc_sli4_fcf_rr_index_set(phba,
16282 fcf_pri->fcf_rec.fcf_index);
16286 spin_lock_irq(&phba->hbalock);
16290 spin_unlock_irq(&phba->hbalock);
16295 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
16296 * @phba: pointer to lpfc hba data structure.
16298 * This routine is to get the next eligible FCF record index in a round
16299 * robin fashion. If the next eligible FCF record index equals to the
16300 * initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
16301 * shall be returned, otherwise, the next eligible FCF record's index
16302 * shall be returned.
16305 lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
16307 uint16_t next_fcf_index;
16310 /* Search start from next bit of currently registered FCF index */
16311 next_fcf_index = phba->fcf.current_rec.fcf_indx;
16314 /* Determine the next fcf index to check */
16315 next_fcf_index = (next_fcf_index + 1) % LPFC_SLI4_FCF_TBL_INDX_MAX;
16316 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
16317 LPFC_SLI4_FCF_TBL_INDX_MAX,
16320 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
16321 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
16323 * If we have wrapped then we need to clear the bits that
16324 * have been tested so that we can detect when we should
16325 * change the priority level.
16327 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
16328 LPFC_SLI4_FCF_TBL_INDX_MAX, 0);
16332 /* Check roundrobin failover list empty condition */
16333 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX ||
16334 next_fcf_index == phba->fcf.current_rec.fcf_indx) {
16336 * If next fcf index is not found check if there are lower
16337 * Priority level fcf's in the fcf_priority list.
16338 * Set up the rr_bmask with all of the avaiable fcf bits
16339 * at that level and continue the selection process.
16341 if (lpfc_check_next_fcf_pri_level(phba))
16342 goto initial_priority;
16343 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
16344 "2844 No roundrobin failover FCF available\n");
16345 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX)
16346 return LPFC_FCOE_FCF_NEXT_NONE;
16348 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
16349 "3063 Only FCF available idx %d, flag %x\n",
16351 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag);
16352 return next_fcf_index;
16356 if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX &&
16357 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag &
16358 LPFC_FCF_FLOGI_FAILED)
16359 goto next_priority;
16361 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
16362 "2845 Get next roundrobin failover FCF (x%x)\n",
16365 return next_fcf_index;
16369 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
16370 * @phba: pointer to lpfc hba data structure.
16372 * This routine sets the FCF record index in to the eligible bmask for
16373 * roundrobin failover search. It checks to make sure that the index
16374 * does not go beyond the range of the driver allocated bmask dimension
16375 * before setting the bit.
16377 * Returns 0 if the index bit successfully set, otherwise, it returns
16381 lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
16383 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
16384 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
16385 "2610 FCF (x%x) reached driver's book "
16386 "keeping dimension:x%x\n",
16387 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
16390 /* Set the eligible FCF record index bmask */
16391 set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
16393 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
16394 "2790 Set FCF (x%x) to roundrobin FCF failover "
16395 "bmask\n", fcf_index);
16401 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
16402 * @phba: pointer to lpfc hba data structure.
16404 * This routine clears the FCF record index from the eligible bmask for
16405 * roundrobin failover search. It checks to make sure that the index
16406 * does not go beyond the range of the driver allocated bmask dimension
16407 * before clearing the bit.
16410 lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
16412 struct lpfc_fcf_pri *fcf_pri, *fcf_pri_next;
16413 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
16414 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
16415 "2762 FCF (x%x) reached driver's book "
16416 "keeping dimension:x%x\n",
16417 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
16420 /* Clear the eligible FCF record index bmask */
16421 spin_lock_irq(&phba->hbalock);
16422 list_for_each_entry_safe(fcf_pri, fcf_pri_next, &phba->fcf.fcf_pri_list,
16424 if (fcf_pri->fcf_rec.fcf_index == fcf_index) {
16425 list_del_init(&fcf_pri->list);
16429 spin_unlock_irq(&phba->hbalock);
16430 clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
16432 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
16433 "2791 Clear FCF (x%x) from roundrobin failover "
16434 "bmask\n", fcf_index);
16438 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
16439 * @phba: pointer to lpfc hba data structure.
16441 * This routine is the completion routine for the rediscover FCF table mailbox
16442 * command. If the mailbox command returned failure, it will try to stop the
16443 * FCF rediscover wait timer.
16446 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
16448 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
16449 uint32_t shdr_status, shdr_add_status;
16451 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
16453 shdr_status = bf_get(lpfc_mbox_hdr_status,
16454 &redisc_fcf->header.cfg_shdr.response);
16455 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
16456 &redisc_fcf->header.cfg_shdr.response);
16457 if (shdr_status || shdr_add_status) {
16458 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
16459 "2746 Requesting for FCF rediscovery failed "
16460 "status x%x add_status x%x\n",
16461 shdr_status, shdr_add_status);
16462 if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
16463 spin_lock_irq(&phba->hbalock);
16464 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
16465 spin_unlock_irq(&phba->hbalock);
16467 * CVL event triggered FCF rediscover request failed,
16468 * last resort to re-try current registered FCF entry.
16470 lpfc_retry_pport_discovery(phba);
16472 spin_lock_irq(&phba->hbalock);
16473 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
16474 spin_unlock_irq(&phba->hbalock);
16476 * DEAD FCF event triggered FCF rediscover request
16477 * failed, last resort to fail over as a link down
16478 * to FCF registration.
16480 lpfc_sli4_fcf_dead_failthrough(phba);
16483 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
16484 "2775 Start FCF rediscover quiescent timer\n");
16486 * Start FCF rediscovery wait timer for pending FCF
16487 * before rescan FCF record table.
16489 lpfc_fcf_redisc_wait_start_timer(phba);
16492 mempool_free(mbox, phba->mbox_mem_pool);
16496 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
16497 * @phba: pointer to lpfc hba data structure.
16499 * This routine is invoked to request for rediscovery of the entire FCF table
16503 lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
16505 LPFC_MBOXQ_t *mbox;
16506 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
16509 /* Cancel retry delay timers to all vports before FCF rediscover */
16510 lpfc_cancel_all_vport_retry_delay_timer(phba);
16512 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16514 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16515 "2745 Failed to allocate mbox for "
16516 "requesting FCF rediscover.\n");
16520 length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
16521 sizeof(struct lpfc_sli4_cfg_mhdr));
16522 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16523 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
16524 length, LPFC_SLI4_MBX_EMBED);
16526 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
16527 /* Set count to 0 for invalidating the entire FCF database */
16528 bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
16530 /* Issue the mailbox command asynchronously */
16531 mbox->vport = phba->pport;
16532 mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
16533 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
16535 if (rc == MBX_NOT_FINISHED) {
16536 mempool_free(mbox, phba->mbox_mem_pool);
16543 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
16544 * @phba: pointer to lpfc hba data structure.
16546 * This function is the failover routine as a last resort to the FCF DEAD
16547 * event when driver failed to perform fast FCF failover.
16550 lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
16552 uint32_t link_state;
16555 * Last resort as FCF DEAD event failover will treat this as
16556 * a link down, but save the link state because we don't want
16557 * it to be changed to Link Down unless it is already down.
16559 link_state = phba->link_state;
16560 lpfc_linkdown(phba);
16561 phba->link_state = link_state;
16563 /* Unregister FCF if no devices connected to it */
16564 lpfc_unregister_unused_fcf(phba);
16568 * lpfc_sli_get_config_region23 - Get sli3 port region 23 data.
16569 * @phba: pointer to lpfc hba data structure.
16570 * @rgn23_data: pointer to configure region 23 data.
16572 * This function gets SLI3 port configure region 23 data through memory dump
16573 * mailbox command. When it successfully retrieves data, the size of the data
16574 * will be returned, otherwise, 0 will be returned.
16577 lpfc_sli_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
16579 LPFC_MBOXQ_t *pmb = NULL;
16581 uint32_t offset = 0;
16587 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16589 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16590 "2600 failed to allocate mailbox memory\n");
16596 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
16597 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
16599 if (rc != MBX_SUCCESS) {
16600 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
16601 "2601 failed to read config "
16602 "region 23, rc 0x%x Status 0x%x\n",
16603 rc, mb->mbxStatus);
16604 mb->un.varDmp.word_cnt = 0;
16607 * dump mem may return a zero when finished or we got a
16608 * mailbox error, either way we are done.
16610 if (mb->un.varDmp.word_cnt == 0)
16612 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
16613 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
16615 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
16616 rgn23_data + offset,
16617 mb->un.varDmp.word_cnt);
16618 offset += mb->un.varDmp.word_cnt;
16619 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
16621 mempool_free(pmb, phba->mbox_mem_pool);
16626 * lpfc_sli4_get_config_region23 - Get sli4 port region 23 data.
16627 * @phba: pointer to lpfc hba data structure.
16628 * @rgn23_data: pointer to configure region 23 data.
16630 * This function gets SLI4 port configure region 23 data through memory dump
16631 * mailbox command. When it successfully retrieves data, the size of the data
16632 * will be returned, otherwise, 0 will be returned.
16635 lpfc_sli4_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
16637 LPFC_MBOXQ_t *mboxq = NULL;
16638 struct lpfc_dmabuf *mp = NULL;
16639 struct lpfc_mqe *mqe;
16640 uint32_t data_length = 0;
16646 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16648 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16649 "3105 failed to allocate mailbox memory\n");
16653 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq))
16655 mqe = &mboxq->u.mqe;
16656 mp = (struct lpfc_dmabuf *) mboxq->context1;
16657 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
16660 data_length = mqe->un.mb_words[5];
16661 if (data_length == 0)
16663 if (data_length > DMP_RGN23_SIZE) {
16667 lpfc_sli_pcimem_bcopy((char *)mp->virt, rgn23_data, data_length);
16669 mempool_free(mboxq, phba->mbox_mem_pool);
16671 lpfc_mbuf_free(phba, mp->virt, mp->phys);
16674 return data_length;
16678 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
16679 * @phba: pointer to lpfc hba data structure.
16681 * This function read region 23 and parse TLV for port status to
16682 * decide if the user disaled the port. If the TLV indicates the
16683 * port is disabled, the hba_flag is set accordingly.
16686 lpfc_sli_read_link_ste(struct lpfc_hba *phba)
16688 uint8_t *rgn23_data = NULL;
16689 uint32_t if_type, data_size, sub_tlv_len, tlv_offset;
16690 uint32_t offset = 0;
16692 /* Get adapter Region 23 data */
16693 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
16697 if (phba->sli_rev < LPFC_SLI_REV4)
16698 data_size = lpfc_sli_get_config_region23(phba, rgn23_data);
16700 if_type = bf_get(lpfc_sli_intf_if_type,
16701 &phba->sli4_hba.sli_intf);
16702 if (if_type == LPFC_SLI_INTF_IF_TYPE_0)
16704 data_size = lpfc_sli4_get_config_region23(phba, rgn23_data);
16710 /* Check the region signature first */
16711 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
16712 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16713 "2619 Config region 23 has bad signature\n");
16718 /* Check the data structure version */
16719 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
16720 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16721 "2620 Config region 23 has bad version\n");
16726 /* Parse TLV entries in the region */
16727 while (offset < data_size) {
16728 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
16731 * If the TLV is not driver specific TLV or driver id is
16732 * not linux driver id, skip the record.
16734 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
16735 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
16736 (rgn23_data[offset + 3] != 0)) {
16737 offset += rgn23_data[offset + 1] * 4 + 4;
16741 /* Driver found a driver specific TLV in the config region */
16742 sub_tlv_len = rgn23_data[offset + 1] * 4;
16747 * Search for configured port state sub-TLV.
16749 while ((offset < data_size) &&
16750 (tlv_offset < sub_tlv_len)) {
16751 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
16756 if (rgn23_data[offset] != PORT_STE_TYPE) {
16757 offset += rgn23_data[offset + 1] * 4 + 4;
16758 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
16762 /* This HBA contains PORT_STE configured */
16763 if (!rgn23_data[offset + 2])
16764 phba->hba_flag |= LINK_DISABLED;
16776 * lpfc_wr_object - write an object to the firmware
16777 * @phba: HBA structure that indicates port to create a queue on.
16778 * @dmabuf_list: list of dmabufs to write to the port.
16779 * @size: the total byte value of the objects to write to the port.
16780 * @offset: the current offset to be used to start the transfer.
16782 * This routine will create a wr_object mailbox command to send to the port.
16783 * the mailbox command will be constructed using the dma buffers described in
16784 * @dmabuf_list to create a list of BDEs. This routine will fill in as many
16785 * BDEs that the imbedded mailbox can support. The @offset variable will be
16786 * used to indicate the starting offset of the transfer and will also return
16787 * the offset after the write object mailbox has completed. @size is used to
16788 * determine the end of the object and whether the eof bit should be set.
16790 * Return 0 is successful and offset will contain the the new offset to use
16791 * for the next write.
16792 * Return negative value for error cases.
16795 lpfc_wr_object(struct lpfc_hba *phba, struct list_head *dmabuf_list,
16796 uint32_t size, uint32_t *offset)
16798 struct lpfc_mbx_wr_object *wr_object;
16799 LPFC_MBOXQ_t *mbox;
16801 uint32_t shdr_status, shdr_add_status;
16803 union lpfc_sli4_cfg_shdr *shdr;
16804 struct lpfc_dmabuf *dmabuf;
16805 uint32_t written = 0;
16807 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16811 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16812 LPFC_MBOX_OPCODE_WRITE_OBJECT,
16813 sizeof(struct lpfc_mbx_wr_object) -
16814 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
16816 wr_object = (struct lpfc_mbx_wr_object *)&mbox->u.mqe.un.wr_object;
16817 wr_object->u.request.write_offset = *offset;
16818 sprintf((uint8_t *)wr_object->u.request.object_name, "/");
16819 wr_object->u.request.object_name[0] =
16820 cpu_to_le32(wr_object->u.request.object_name[0]);
16821 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 0);
16822 list_for_each_entry(dmabuf, dmabuf_list, list) {
16823 if (i >= LPFC_MBX_WR_CONFIG_MAX_BDE || written >= size)
16825 wr_object->u.request.bde[i].addrLow = putPaddrLow(dmabuf->phys);
16826 wr_object->u.request.bde[i].addrHigh =
16827 putPaddrHigh(dmabuf->phys);
16828 if (written + SLI4_PAGE_SIZE >= size) {
16829 wr_object->u.request.bde[i].tus.f.bdeSize =
16831 written += (size - written);
16832 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 1);
16834 wr_object->u.request.bde[i].tus.f.bdeSize =
16836 written += SLI4_PAGE_SIZE;
16840 wr_object->u.request.bde_count = i;
16841 bf_set(lpfc_wr_object_write_length, &wr_object->u.request, written);
16842 if (!phba->sli4_hba.intr_enable)
16843 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16845 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
16846 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16848 /* The IOCTL status is embedded in the mailbox subheader. */
16849 shdr = (union lpfc_sli4_cfg_shdr *) &wr_object->header.cfg_shdr;
16850 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16851 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16852 if (rc != MBX_TIMEOUT)
16853 mempool_free(mbox, phba->mbox_mem_pool);
16854 if (shdr_status || shdr_add_status || rc) {
16855 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16856 "3025 Write Object mailbox failed with "
16857 "status x%x add_status x%x, mbx status x%x\n",
16858 shdr_status, shdr_add_status, rc);
16861 *offset += wr_object->u.response.actual_write_length;
16866 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
16867 * @vport: pointer to vport data structure.
16869 * This function iterate through the mailboxq and clean up all REG_LOGIN
16870 * and REG_VPI mailbox commands associated with the vport. This function
16871 * is called when driver want to restart discovery of the vport due to
16872 * a Clear Virtual Link event.
16875 lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
16877 struct lpfc_hba *phba = vport->phba;
16878 LPFC_MBOXQ_t *mb, *nextmb;
16879 struct lpfc_dmabuf *mp;
16880 struct lpfc_nodelist *ndlp;
16881 struct lpfc_nodelist *act_mbx_ndlp = NULL;
16882 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
16883 LIST_HEAD(mbox_cmd_list);
16884 uint8_t restart_loop;
16886 /* Clean up internally queued mailbox commands with the vport */
16887 spin_lock_irq(&phba->hbalock);
16888 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
16889 if (mb->vport != vport)
16892 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
16893 (mb->u.mb.mbxCommand != MBX_REG_VPI))
16896 list_del(&mb->list);
16897 list_add_tail(&mb->list, &mbox_cmd_list);
16899 /* Clean up active mailbox command with the vport */
16900 mb = phba->sli.mbox_active;
16901 if (mb && (mb->vport == vport)) {
16902 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
16903 (mb->u.mb.mbxCommand == MBX_REG_VPI))
16904 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16905 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
16906 act_mbx_ndlp = (struct lpfc_nodelist *)mb->context2;
16907 /* Put reference count for delayed processing */
16908 act_mbx_ndlp = lpfc_nlp_get(act_mbx_ndlp);
16909 /* Unregister the RPI when mailbox complete */
16910 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
16913 /* Cleanup any mailbox completions which are not yet processed */
16916 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
16918 * If this mailox is already processed or it is
16919 * for another vport ignore it.
16921 if ((mb->vport != vport) ||
16922 (mb->mbox_flag & LPFC_MBX_IMED_UNREG))
16925 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
16926 (mb->u.mb.mbxCommand != MBX_REG_VPI))
16929 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16930 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
16931 ndlp = (struct lpfc_nodelist *)mb->context2;
16932 /* Unregister the RPI when mailbox complete */
16933 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
16935 spin_unlock_irq(&phba->hbalock);
16936 spin_lock(shost->host_lock);
16937 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
16938 spin_unlock(shost->host_lock);
16939 spin_lock_irq(&phba->hbalock);
16943 } while (restart_loop);
16945 spin_unlock_irq(&phba->hbalock);
16947 /* Release the cleaned-up mailbox commands */
16948 while (!list_empty(&mbox_cmd_list)) {
16949 list_remove_head(&mbox_cmd_list, mb, LPFC_MBOXQ_t, list);
16950 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
16951 mp = (struct lpfc_dmabuf *) (mb->context1);
16953 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
16956 ndlp = (struct lpfc_nodelist *) mb->context2;
16957 mb->context2 = NULL;
16959 spin_lock(shost->host_lock);
16960 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
16961 spin_unlock(shost->host_lock);
16962 lpfc_nlp_put(ndlp);
16965 mempool_free(mb, phba->mbox_mem_pool);
16968 /* Release the ndlp with the cleaned-up active mailbox command */
16969 if (act_mbx_ndlp) {
16970 spin_lock(shost->host_lock);
16971 act_mbx_ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
16972 spin_unlock(shost->host_lock);
16973 lpfc_nlp_put(act_mbx_ndlp);
16978 * lpfc_drain_txq - Drain the txq
16979 * @phba: Pointer to HBA context object.
16981 * This function attempt to submit IOCBs on the txq
16982 * to the adapter. For SLI4 adapters, the txq contains
16983 * ELS IOCBs that have been deferred because the there
16984 * are no SGLs. This congestion can occur with large
16985 * vport counts during node discovery.
16989 lpfc_drain_txq(struct lpfc_hba *phba)
16991 LIST_HEAD(completions);
16992 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
16993 struct lpfc_iocbq *piocbq = NULL;
16994 unsigned long iflags = 0;
16995 char *fail_msg = NULL;
16996 struct lpfc_sglq *sglq;
16997 union lpfc_wqe wqe;
16998 uint32_t txq_cnt = 0;
17000 spin_lock_irqsave(&pring->ring_lock, iflags);
17001 list_for_each_entry(piocbq, &pring->txq, list) {
17005 if (txq_cnt > pring->txq_max)
17006 pring->txq_max = txq_cnt;
17008 spin_unlock_irqrestore(&pring->ring_lock, iflags);
17010 while (!list_empty(&pring->txq)) {
17011 spin_lock_irqsave(&pring->ring_lock, iflags);
17013 piocbq = lpfc_sli_ringtx_get(phba, pring);
17015 spin_unlock_irqrestore(&pring->ring_lock, iflags);
17016 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17017 "2823 txq empty and txq_cnt is %d\n ",
17021 sglq = __lpfc_sli_get_sglq(phba, piocbq);
17023 __lpfc_sli_ringtx_put(phba, pring, piocbq);
17024 spin_unlock_irqrestore(&pring->ring_lock, iflags);
17029 /* The xri and iocb resources secured,
17030 * attempt to issue request
17032 piocbq->sli4_lxritag = sglq->sli4_lxritag;
17033 piocbq->sli4_xritag = sglq->sli4_xritag;
17034 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocbq, sglq))
17035 fail_msg = "to convert bpl to sgl";
17036 else if (lpfc_sli4_iocb2wqe(phba, piocbq, &wqe))
17037 fail_msg = "to convert iocb to wqe";
17038 else if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
17039 fail_msg = " - Wq is full";
17041 lpfc_sli_ringtxcmpl_put(phba, pring, piocbq);
17044 /* Failed means we can't issue and need to cancel */
17045 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17046 "2822 IOCB failed %s iotag 0x%x "
17049 piocbq->iotag, piocbq->sli4_xritag);
17050 list_add_tail(&piocbq->list, &completions);
17052 spin_unlock_irqrestore(&pring->ring_lock, iflags);
17055 /* Cancel all the IOCBs that cannot be issued */
17056 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
17057 IOERR_SLI_ABORTED);