1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2014 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
22 #include <linux/blkdev.h>
23 #include <linux/pci.h>
24 #include <linux/interrupt.h>
25 #include <linux/delay.h>
26 #include <linux/slab.h>
28 #include <scsi/scsi.h>
29 #include <scsi/scsi_cmnd.h>
30 #include <scsi/scsi_device.h>
31 #include <scsi/scsi_host.h>
32 #include <scsi/scsi_transport_fc.h>
33 #include <scsi/fc/fc_fs.h>
34 #include <linux/aer.h>
39 #include "lpfc_sli4.h"
41 #include "lpfc_disc.h"
42 #include "lpfc_scsi.h"
44 #include "lpfc_crtn.h"
45 #include "lpfc_logmsg.h"
46 #include "lpfc_compat.h"
47 #include "lpfc_debugfs.h"
48 #include "lpfc_vport.h"
50 /* There are only four IOCB completion types. */
51 typedef enum _lpfc_iocb_type {
59 /* Provide function prototypes local to this module. */
60 static int lpfc_sli_issue_mbox_s4(struct lpfc_hba *, LPFC_MBOXQ_t *,
62 static int lpfc_sli4_read_rev(struct lpfc_hba *, LPFC_MBOXQ_t *,
63 uint8_t *, uint32_t *);
64 static struct lpfc_iocbq *lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *,
66 static void lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *,
68 static int lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *, struct lpfc_queue *,
70 static int lpfc_sli4_post_els_sgl_list(struct lpfc_hba *, struct list_head *,
72 static void lpfc_sli4_hba_handle_eqe(struct lpfc_hba *, struct lpfc_eqe *,
74 static bool lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba);
75 static bool lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba);
78 lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq)
84 * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
85 * @q: The Work Queue to operate on.
86 * @wqe: The work Queue Entry to put on the Work queue.
88 * This routine will copy the contents of @wqe to the next available entry on
89 * the @q. This function will then ring the Work Queue Doorbell to signal the
90 * HBA to start processing the Work Queue Entry. This function returns 0 if
91 * successful. If no entries are available on @q then this function will return
93 * The caller is expected to hold the hbalock when calling this routine.
96 lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe)
98 union lpfc_wqe *temp_wqe;
99 struct lpfc_register doorbell;
103 /* sanity check on queue memory */
106 temp_wqe = q->qe[q->host_index].wqe;
108 /* If the host has not yet processed the next entry then we are done */
109 idx = ((q->host_index + 1) % q->entry_count);
110 if (idx == q->hba_index) {
115 /* set consumption flag every once in a while */
116 if (!((q->host_index + 1) % q->entry_repost))
117 bf_set(wqe_wqec, &wqe->generic.wqe_com, 1);
118 if (q->phba->sli3_options & LPFC_SLI4_PHWQ_ENABLED)
119 bf_set(wqe_wqid, &wqe->generic.wqe_com, q->queue_id);
120 lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size);
122 /* Update the host index before invoking device */
123 host_index = q->host_index;
129 if (q->db_format == LPFC_DB_LIST_FORMAT) {
130 bf_set(lpfc_wq_db_list_fm_num_posted, &doorbell, 1);
131 bf_set(lpfc_wq_db_list_fm_index, &doorbell, host_index);
132 bf_set(lpfc_wq_db_list_fm_id, &doorbell, q->queue_id);
133 } else if (q->db_format == LPFC_DB_RING_FORMAT) {
134 bf_set(lpfc_wq_db_ring_fm_num_posted, &doorbell, 1);
135 bf_set(lpfc_wq_db_ring_fm_id, &doorbell, q->queue_id);
139 writel(doorbell.word0, q->db_regaddr);
145 * lpfc_sli4_wq_release - Updates internal hba index for WQ
146 * @q: The Work Queue to operate on.
147 * @index: The index to advance the hba index to.
149 * This routine will update the HBA index of a queue to reflect consumption of
150 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
151 * an entry the host calls this function to update the queue's internal
152 * pointers. This routine returns the number of entries that were consumed by
156 lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index)
158 uint32_t released = 0;
160 /* sanity check on queue memory */
164 if (q->hba_index == index)
167 q->hba_index = ((q->hba_index + 1) % q->entry_count);
169 } while (q->hba_index != index);
174 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
175 * @q: The Mailbox Queue to operate on.
176 * @wqe: The Mailbox Queue Entry to put on the Work queue.
178 * This routine will copy the contents of @mqe to the next available entry on
179 * the @q. This function will then ring the Work Queue Doorbell to signal the
180 * HBA to start processing the Work Queue Entry. This function returns 0 if
181 * successful. If no entries are available on @q then this function will return
183 * The caller is expected to hold the hbalock when calling this routine.
186 lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
188 struct lpfc_mqe *temp_mqe;
189 struct lpfc_register doorbell;
192 /* sanity check on queue memory */
195 temp_mqe = q->qe[q->host_index].mqe;
197 /* If the host has not yet processed the next entry then we are done */
198 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
200 lpfc_sli_pcimem_bcopy(mqe, temp_mqe, q->entry_size);
201 /* Save off the mailbox pointer for completion */
202 q->phba->mbox = (MAILBOX_t *)temp_mqe;
204 /* Update the host index before invoking device */
205 host_index = q->host_index;
206 q->host_index = ((q->host_index + 1) % q->entry_count);
210 bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1);
211 bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id);
212 writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr);
217 * lpfc_sli4_mq_release - Updates internal hba index for MQ
218 * @q: The Mailbox Queue to operate on.
220 * This routine will update the HBA index of a queue to reflect consumption of
221 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
222 * an entry the host calls this function to update the queue's internal
223 * pointers. This routine returns the number of entries that were consumed by
227 lpfc_sli4_mq_release(struct lpfc_queue *q)
229 /* sanity check on queue memory */
233 /* Clear the mailbox pointer for completion */
234 q->phba->mbox = NULL;
235 q->hba_index = ((q->hba_index + 1) % q->entry_count);
240 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
241 * @q: The Event Queue to get the first valid EQE from
243 * This routine will get the first valid Event Queue Entry from @q, update
244 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
245 * the Queue (no more work to do), or the Queue is full of EQEs that have been
246 * processed, but not popped back to the HBA then this routine will return NULL.
248 static struct lpfc_eqe *
249 lpfc_sli4_eq_get(struct lpfc_queue *q)
251 struct lpfc_eqe *eqe;
254 /* sanity check on queue memory */
257 eqe = q->qe[q->hba_index].eqe;
259 /* If the next EQE is not valid then we are done */
260 if (!bf_get_le32(lpfc_eqe_valid, eqe))
262 /* If the host has not yet processed the next entry then we are done */
263 idx = ((q->hba_index + 1) % q->entry_count);
264 if (idx == q->host_index)
270 * insert barrier for instruction interlock : data from the hardware
271 * must have the valid bit checked before it can be copied and acted
272 * upon. Given what was seen in lpfc_sli4_cq_get() of speculative
273 * instructions allowing action on content before valid bit checked,
274 * add barrier here as well. May not be needed as "content" is a
275 * single 32-bit entity here (vs multi word structure for cq's).
282 * lpfc_sli4_eq_clr_intr - Turn off interrupts from this EQ
283 * @q: The Event Queue to disable interrupts
287 lpfc_sli4_eq_clr_intr(struct lpfc_queue *q)
289 struct lpfc_register doorbell;
292 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
293 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
294 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
295 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
296 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
297 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
301 * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
302 * @q: The Event Queue that the host has completed processing for.
303 * @arm: Indicates whether the host wants to arms this CQ.
305 * This routine will mark all Event Queue Entries on @q, from the last
306 * known completed entry to the last entry that was processed, as completed
307 * by clearing the valid bit for each completion queue entry. Then it will
308 * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
309 * The internal host index in the @q will be updated by this routine to indicate
310 * that the host has finished processing the entries. The @arm parameter
311 * indicates that the queue should be rearmed when ringing the doorbell.
313 * This function will return the number of EQEs that were popped.
316 lpfc_sli4_eq_release(struct lpfc_queue *q, bool arm)
318 uint32_t released = 0;
319 struct lpfc_eqe *temp_eqe;
320 struct lpfc_register doorbell;
322 /* sanity check on queue memory */
326 /* while there are valid entries */
327 while (q->hba_index != q->host_index) {
328 temp_eqe = q->qe[q->host_index].eqe;
329 bf_set_le32(lpfc_eqe_valid, temp_eqe, 0);
331 q->host_index = ((q->host_index + 1) % q->entry_count);
333 if (unlikely(released == 0 && !arm))
336 /* ring doorbell for number popped */
339 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
340 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
342 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
343 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
344 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
345 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
346 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
347 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
348 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
349 if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
350 readl(q->phba->sli4_hba.EQCQDBregaddr);
355 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
356 * @q: The Completion Queue to get the first valid CQE from
358 * This routine will get the first valid Completion Queue Entry from @q, update
359 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
360 * the Queue (no more work to do), or the Queue is full of CQEs that have been
361 * processed, but not popped back to the HBA then this routine will return NULL.
363 static struct lpfc_cqe *
364 lpfc_sli4_cq_get(struct lpfc_queue *q)
366 struct lpfc_cqe *cqe;
369 /* sanity check on queue memory */
373 /* If the next CQE is not valid then we are done */
374 if (!bf_get_le32(lpfc_cqe_valid, q->qe[q->hba_index].cqe))
376 /* If the host has not yet processed the next entry then we are done */
377 idx = ((q->hba_index + 1) % q->entry_count);
378 if (idx == q->host_index)
381 cqe = q->qe[q->hba_index].cqe;
385 * insert barrier for instruction interlock : data from the hardware
386 * must have the valid bit checked before it can be copied and acted
387 * upon. Speculative instructions were allowing a bcopy at the start
388 * of lpfc_sli4_fp_handle_wcqe(), which is called immediately
389 * after our return, to copy data before the valid bit check above
390 * was done. As such, some of the copied data was stale. The barrier
391 * ensures the check is before any data is copied.
398 * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ
399 * @q: The Completion Queue that the host has completed processing for.
400 * @arm: Indicates whether the host wants to arms this CQ.
402 * This routine will mark all Completion queue entries on @q, from the last
403 * known completed entry to the last entry that was processed, as completed
404 * by clearing the valid bit for each completion queue entry. Then it will
405 * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
406 * The internal host index in the @q will be updated by this routine to indicate
407 * that the host has finished processing the entries. The @arm parameter
408 * indicates that the queue should be rearmed when ringing the doorbell.
410 * This function will return the number of CQEs that were released.
413 lpfc_sli4_cq_release(struct lpfc_queue *q, bool arm)
415 uint32_t released = 0;
416 struct lpfc_cqe *temp_qe;
417 struct lpfc_register doorbell;
419 /* sanity check on queue memory */
422 /* while there are valid entries */
423 while (q->hba_index != q->host_index) {
424 temp_qe = q->qe[q->host_index].cqe;
425 bf_set_le32(lpfc_cqe_valid, temp_qe, 0);
427 q->host_index = ((q->host_index + 1) % q->entry_count);
429 if (unlikely(released == 0 && !arm))
432 /* ring doorbell for number popped */
435 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
436 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
437 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION);
438 bf_set(lpfc_eqcq_doorbell_cqid_hi, &doorbell,
439 (q->queue_id >> LPFC_CQID_HI_FIELD_SHIFT));
440 bf_set(lpfc_eqcq_doorbell_cqid_lo, &doorbell, q->queue_id);
441 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
446 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
447 * @q: The Header Receive Queue to operate on.
448 * @wqe: The Receive Queue Entry to put on the Receive queue.
450 * This routine will copy the contents of @wqe to the next available entry on
451 * the @q. This function will then ring the Receive Queue Doorbell to signal the
452 * HBA to start processing the Receive Queue Entry. This function returns the
453 * index that the rqe was copied to if successful. If no entries are available
454 * on @q then this function will return -ENOMEM.
455 * The caller is expected to hold the hbalock when calling this routine.
458 lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
459 struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe)
461 struct lpfc_rqe *temp_hrqe;
462 struct lpfc_rqe *temp_drqe;
463 struct lpfc_register doorbell;
466 /* sanity check on queue memory */
467 if (unlikely(!hq) || unlikely(!dq))
469 put_index = hq->host_index;
470 temp_hrqe = hq->qe[hq->host_index].rqe;
471 temp_drqe = dq->qe[dq->host_index].rqe;
473 if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ)
475 if (hq->host_index != dq->host_index)
477 /* If the host has not yet processed the next entry then we are done */
478 if (((hq->host_index + 1) % hq->entry_count) == hq->hba_index)
480 lpfc_sli_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size);
481 lpfc_sli_pcimem_bcopy(drqe, temp_drqe, dq->entry_size);
483 /* Update the host index to point to the next slot */
484 hq->host_index = ((hq->host_index + 1) % hq->entry_count);
485 dq->host_index = ((dq->host_index + 1) % dq->entry_count);
487 /* Ring The Header Receive Queue Doorbell */
488 if (!(hq->host_index % hq->entry_repost)) {
490 if (hq->db_format == LPFC_DB_RING_FORMAT) {
491 bf_set(lpfc_rq_db_ring_fm_num_posted, &doorbell,
493 bf_set(lpfc_rq_db_ring_fm_id, &doorbell, hq->queue_id);
494 } else if (hq->db_format == LPFC_DB_LIST_FORMAT) {
495 bf_set(lpfc_rq_db_list_fm_num_posted, &doorbell,
497 bf_set(lpfc_rq_db_list_fm_index, &doorbell,
499 bf_set(lpfc_rq_db_list_fm_id, &doorbell, hq->queue_id);
503 writel(doorbell.word0, hq->db_regaddr);
509 * lpfc_sli4_rq_release - Updates internal hba index for RQ
510 * @q: The Header Receive Queue to operate on.
512 * This routine will update the HBA index of a queue to reflect consumption of
513 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
514 * consumed an entry the host calls this function to update the queue's
515 * internal pointers. This routine returns the number of entries that were
516 * consumed by the HBA.
519 lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq)
521 /* sanity check on queue memory */
522 if (unlikely(!hq) || unlikely(!dq))
525 if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ))
527 hq->hba_index = ((hq->hba_index + 1) % hq->entry_count);
528 dq->hba_index = ((dq->hba_index + 1) % dq->entry_count);
533 * lpfc_cmd_iocb - Get next command iocb entry in the ring
534 * @phba: Pointer to HBA context object.
535 * @pring: Pointer to driver SLI ring object.
537 * This function returns pointer to next command iocb entry
538 * in the command ring. The caller must hold hbalock to prevent
539 * other threads consume the next command iocb.
540 * SLI-2/SLI-3 provide different sized iocbs.
542 static inline IOCB_t *
543 lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
545 return (IOCB_t *) (((char *) pring->sli.sli3.cmdringaddr) +
546 pring->sli.sli3.cmdidx * phba->iocb_cmd_size);
550 * lpfc_resp_iocb - Get next response iocb entry in the ring
551 * @phba: Pointer to HBA context object.
552 * @pring: Pointer to driver SLI ring object.
554 * This function returns pointer to next response iocb entry
555 * in the response ring. The caller must hold hbalock to make sure
556 * that no other thread consume the next response iocb.
557 * SLI-2/SLI-3 provide different sized iocbs.
559 static inline IOCB_t *
560 lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
562 return (IOCB_t *) (((char *) pring->sli.sli3.rspringaddr) +
563 pring->sli.sli3.rspidx * phba->iocb_rsp_size);
567 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
568 * @phba: Pointer to HBA context object.
570 * This function is called with hbalock held. This function
571 * allocates a new driver iocb object from the iocb pool. If the
572 * allocation is successful, it returns pointer to the newly
573 * allocated iocb object else it returns NULL.
576 __lpfc_sli_get_iocbq(struct lpfc_hba *phba)
578 struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
579 struct lpfc_iocbq * iocbq = NULL;
581 list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
584 if (phba->iocb_cnt > phba->iocb_max)
585 phba->iocb_max = phba->iocb_cnt;
590 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
591 * @phba: Pointer to HBA context object.
592 * @xritag: XRI value.
594 * This function clears the sglq pointer from the array of acive
595 * sglq's. The xritag that is passed in is used to index into the
596 * array. Before the xritag can be used it needs to be adjusted
597 * by subtracting the xribase.
599 * Returns sglq ponter = success, NULL = Failure.
601 static struct lpfc_sglq *
602 __lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
604 struct lpfc_sglq *sglq;
606 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
607 phba->sli4_hba.lpfc_sglq_active_list[xritag] = NULL;
612 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
613 * @phba: Pointer to HBA context object.
614 * @xritag: XRI value.
616 * This function returns the sglq pointer from the array of acive
617 * sglq's. The xritag that is passed in is used to index into the
618 * array. Before the xritag can be used it needs to be adjusted
619 * by subtracting the xribase.
621 * Returns sglq ponter = success, NULL = Failure.
624 __lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
626 struct lpfc_sglq *sglq;
628 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
633 * lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
634 * @phba: Pointer to HBA context object.
635 * @xritag: xri used in this exchange.
636 * @rrq: The RRQ to be cleared.
640 lpfc_clr_rrq_active(struct lpfc_hba *phba,
642 struct lpfc_node_rrq *rrq)
644 struct lpfc_nodelist *ndlp = NULL;
646 if ((rrq->vport) && NLP_CHK_NODE_ACT(rrq->ndlp))
647 ndlp = lpfc_findnode_did(rrq->vport, rrq->nlp_DID);
649 /* The target DID could have been swapped (cable swap)
650 * we should use the ndlp from the findnode if it is
653 if ((!ndlp) && rrq->ndlp)
659 if (test_and_clear_bit(xritag, ndlp->active_rrqs_xri_bitmap)) {
662 rrq->rrq_stop_time = 0;
665 mempool_free(rrq, phba->rrq_pool);
669 * lpfc_handle_rrq_active - Checks if RRQ has waithed RATOV.
670 * @phba: Pointer to HBA context object.
672 * This function is called with hbalock held. This function
673 * Checks if stop_time (ratov from setting rrq active) has
674 * been reached, if it has and the send_rrq flag is set then
675 * it will call lpfc_send_rrq. If the send_rrq flag is not set
676 * then it will just call the routine to clear the rrq and
677 * free the rrq resource.
678 * The timer is set to the next rrq that is going to expire before
679 * leaving the routine.
683 lpfc_handle_rrq_active(struct lpfc_hba *phba)
685 struct lpfc_node_rrq *rrq;
686 struct lpfc_node_rrq *nextrrq;
687 unsigned long next_time;
688 unsigned long iflags;
691 spin_lock_irqsave(&phba->hbalock, iflags);
692 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
693 next_time = jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
694 list_for_each_entry_safe(rrq, nextrrq,
695 &phba->active_rrq_list, list) {
696 if (time_after(jiffies, rrq->rrq_stop_time))
697 list_move(&rrq->list, &send_rrq);
698 else if (time_before(rrq->rrq_stop_time, next_time))
699 next_time = rrq->rrq_stop_time;
701 spin_unlock_irqrestore(&phba->hbalock, iflags);
702 if ((!list_empty(&phba->active_rrq_list)) &&
703 (!(phba->pport->load_flag & FC_UNLOADING)))
704 mod_timer(&phba->rrq_tmr, next_time);
705 list_for_each_entry_safe(rrq, nextrrq, &send_rrq, list) {
706 list_del(&rrq->list);
708 /* this call will free the rrq */
709 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
710 else if (lpfc_send_rrq(phba, rrq)) {
711 /* if we send the rrq then the completion handler
712 * will clear the bit in the xribitmap.
714 lpfc_clr_rrq_active(phba, rrq->xritag,
721 * lpfc_get_active_rrq - Get the active RRQ for this exchange.
722 * @vport: Pointer to vport context object.
723 * @xri: The xri used in the exchange.
724 * @did: The targets DID for this exchange.
726 * returns NULL = rrq not found in the phba->active_rrq_list.
727 * rrq = rrq for this xri and target.
729 struct lpfc_node_rrq *
730 lpfc_get_active_rrq(struct lpfc_vport *vport, uint16_t xri, uint32_t did)
732 struct lpfc_hba *phba = vport->phba;
733 struct lpfc_node_rrq *rrq;
734 struct lpfc_node_rrq *nextrrq;
735 unsigned long iflags;
737 if (phba->sli_rev != LPFC_SLI_REV4)
739 spin_lock_irqsave(&phba->hbalock, iflags);
740 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) {
741 if (rrq->vport == vport && rrq->xritag == xri &&
742 rrq->nlp_DID == did){
743 list_del(&rrq->list);
744 spin_unlock_irqrestore(&phba->hbalock, iflags);
748 spin_unlock_irqrestore(&phba->hbalock, iflags);
753 * lpfc_cleanup_vports_rrqs - Remove and clear the active RRQ for this vport.
754 * @vport: Pointer to vport context object.
755 * @ndlp: Pointer to the lpfc_node_list structure.
756 * If ndlp is NULL Remove all active RRQs for this vport from the
757 * phba->active_rrq_list and clear the rrq.
758 * If ndlp is not NULL then only remove rrqs for this vport & this ndlp.
761 lpfc_cleanup_vports_rrqs(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
764 struct lpfc_hba *phba = vport->phba;
765 struct lpfc_node_rrq *rrq;
766 struct lpfc_node_rrq *nextrrq;
767 unsigned long iflags;
770 if (phba->sli_rev != LPFC_SLI_REV4)
773 lpfc_sli4_vport_delete_els_xri_aborted(vport);
774 lpfc_sli4_vport_delete_fcp_xri_aborted(vport);
776 spin_lock_irqsave(&phba->hbalock, iflags);
777 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list)
778 if ((rrq->vport == vport) && (!ndlp || rrq->ndlp == ndlp))
779 list_move(&rrq->list, &rrq_list);
780 spin_unlock_irqrestore(&phba->hbalock, iflags);
782 list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
783 list_del(&rrq->list);
784 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
789 * lpfc_cleanup_wt_rrqs - Remove all rrq's from the active list.
790 * @phba: Pointer to HBA context object.
792 * Remove all rrqs from the phba->active_rrq_list and free them by
793 * calling __lpfc_clr_active_rrq
797 lpfc_cleanup_wt_rrqs(struct lpfc_hba *phba)
799 struct lpfc_node_rrq *rrq;
800 struct lpfc_node_rrq *nextrrq;
801 unsigned long next_time;
802 unsigned long iflags;
805 if (phba->sli_rev != LPFC_SLI_REV4)
807 spin_lock_irqsave(&phba->hbalock, iflags);
808 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
809 next_time = jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov * 2));
810 list_splice_init(&phba->active_rrq_list, &rrq_list);
811 spin_unlock_irqrestore(&phba->hbalock, iflags);
813 list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
814 list_del(&rrq->list);
815 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
817 if ((!list_empty(&phba->active_rrq_list)) &&
818 (!(phba->pport->load_flag & FC_UNLOADING)))
820 mod_timer(&phba->rrq_tmr, next_time);
825 * lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
826 * @phba: Pointer to HBA context object.
827 * @ndlp: Targets nodelist pointer for this exchange.
828 * @xritag the xri in the bitmap to test.
830 * This function is called with hbalock held. This function
831 * returns 0 = rrq not active for this xri
832 * 1 = rrq is valid for this xri.
835 lpfc_test_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
840 if (!ndlp->active_rrqs_xri_bitmap)
842 if (test_bit(xritag, ndlp->active_rrqs_xri_bitmap))
849 * lpfc_set_rrq_active - set RRQ active bit in xri_bitmap.
850 * @phba: Pointer to HBA context object.
851 * @ndlp: nodelist pointer for this target.
852 * @xritag: xri used in this exchange.
853 * @rxid: Remote Exchange ID.
854 * @send_rrq: Flag used to determine if we should send rrq els cmd.
856 * This function takes the hbalock.
857 * The active bit is always set in the active rrq xri_bitmap even
858 * if there is no slot avaiable for the other rrq information.
860 * returns 0 rrq actived for this xri
861 * < 0 No memory or invalid ndlp.
864 lpfc_set_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
865 uint16_t xritag, uint16_t rxid, uint16_t send_rrq)
867 unsigned long iflags;
868 struct lpfc_node_rrq *rrq;
874 if (!phba->cfg_enable_rrq)
877 spin_lock_irqsave(&phba->hbalock, iflags);
878 if (phba->pport->load_flag & FC_UNLOADING) {
879 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
884 * set the active bit even if there is no mem available.
886 if (NLP_CHK_FREE_REQ(ndlp))
889 if (ndlp->vport && (ndlp->vport->load_flag & FC_UNLOADING))
892 if (!ndlp->active_rrqs_xri_bitmap)
895 if (test_and_set_bit(xritag, ndlp->active_rrqs_xri_bitmap))
898 spin_unlock_irqrestore(&phba->hbalock, iflags);
899 rrq = mempool_alloc(phba->rrq_pool, GFP_KERNEL);
901 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
902 "3155 Unable to allocate RRQ xri:0x%x rxid:0x%x"
903 " DID:0x%x Send:%d\n",
904 xritag, rxid, ndlp->nlp_DID, send_rrq);
907 if (phba->cfg_enable_rrq == 1)
908 rrq->send_rrq = send_rrq;
911 rrq->xritag = xritag;
912 rrq->rrq_stop_time = jiffies +
913 msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
915 rrq->nlp_DID = ndlp->nlp_DID;
916 rrq->vport = ndlp->vport;
918 spin_lock_irqsave(&phba->hbalock, iflags);
919 empty = list_empty(&phba->active_rrq_list);
920 list_add_tail(&rrq->list, &phba->active_rrq_list);
921 phba->hba_flag |= HBA_RRQ_ACTIVE;
923 lpfc_worker_wake_up(phba);
924 spin_unlock_irqrestore(&phba->hbalock, iflags);
927 spin_unlock_irqrestore(&phba->hbalock, iflags);
928 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
929 "2921 Can't set rrq active xri:0x%x rxid:0x%x"
930 " DID:0x%x Send:%d\n",
931 xritag, rxid, ndlp->nlp_DID, send_rrq);
936 * __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool
937 * @phba: Pointer to HBA context object.
938 * @piocb: Pointer to the iocbq.
940 * This function is called with hbalock held. This function
941 * gets a new driver sglq object from the sglq list. If the
942 * list is not empty then it is successful, it returns pointer to the newly
943 * allocated sglq object else it returns NULL.
945 static struct lpfc_sglq *
946 __lpfc_sli_get_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
948 struct list_head *lpfc_sgl_list = &phba->sli4_hba.lpfc_sgl_list;
949 struct lpfc_sglq *sglq = NULL;
950 struct lpfc_sglq *start_sglq = NULL;
951 struct lpfc_scsi_buf *lpfc_cmd;
952 struct lpfc_nodelist *ndlp;
955 if (piocbq->iocb_flag & LPFC_IO_FCP) {
956 lpfc_cmd = (struct lpfc_scsi_buf *) piocbq->context1;
957 ndlp = lpfc_cmd->rdata->pnode;
958 } else if ((piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) &&
959 !(piocbq->iocb_flag & LPFC_IO_LIBDFC))
960 ndlp = piocbq->context_un.ndlp;
961 else if (piocbq->iocb_flag & LPFC_IO_LIBDFC)
962 ndlp = piocbq->context_un.ndlp;
964 ndlp = piocbq->context1;
966 list_remove_head(lpfc_sgl_list, sglq, struct lpfc_sglq, list);
971 if (lpfc_test_rrq_active(phba, ndlp, sglq->sli4_lxritag)) {
972 /* This xri has an rrq outstanding for this DID.
973 * put it back in the list and get another xri.
975 list_add_tail(&sglq->list, lpfc_sgl_list);
977 list_remove_head(lpfc_sgl_list, sglq,
978 struct lpfc_sglq, list);
979 if (sglq == start_sglq) {
987 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
988 sglq->state = SGL_ALLOCATED;
994 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
995 * @phba: Pointer to HBA context object.
997 * This function is called with no lock held. This function
998 * allocates a new driver iocb object from the iocb pool. If the
999 * allocation is successful, it returns pointer to the newly
1000 * allocated iocb object else it returns NULL.
1003 lpfc_sli_get_iocbq(struct lpfc_hba *phba)
1005 struct lpfc_iocbq * iocbq = NULL;
1006 unsigned long iflags;
1008 spin_lock_irqsave(&phba->hbalock, iflags);
1009 iocbq = __lpfc_sli_get_iocbq(phba);
1010 spin_unlock_irqrestore(&phba->hbalock, iflags);
1015 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
1016 * @phba: Pointer to HBA context object.
1017 * @iocbq: Pointer to driver iocb object.
1019 * This function is called with hbalock held to release driver
1020 * iocb object to the iocb pool. The iotag in the iocb object
1021 * does not change for each use of the iocb object. This function
1022 * clears all other fields of the iocb object when it is freed.
1023 * The sqlq structure that holds the xritag and phys and virtual
1024 * mappings for the scatter gather list is retrieved from the
1025 * active array of sglq. The get of the sglq pointer also clears
1026 * the entry in the array. If the status of the IO indiactes that
1027 * this IO was aborted then the sglq entry it put on the
1028 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
1029 * IO has good status or fails for any other reason then the sglq
1030 * entry is added to the free list (lpfc_sgl_list).
1033 __lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1035 struct lpfc_sglq *sglq;
1036 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1037 unsigned long iflag = 0;
1038 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
1040 if (iocbq->sli4_xritag == NO_XRI)
1043 sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_lxritag);
1047 if ((iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) &&
1048 (sglq->state != SGL_XRI_ABORTED)) {
1049 spin_lock_irqsave(&phba->sli4_hba.abts_sgl_list_lock,
1051 list_add(&sglq->list,
1052 &phba->sli4_hba.lpfc_abts_els_sgl_list);
1053 spin_unlock_irqrestore(
1054 &phba->sli4_hba.abts_sgl_list_lock, iflag);
1056 sglq->state = SGL_FREED;
1058 list_add_tail(&sglq->list,
1059 &phba->sli4_hba.lpfc_sgl_list);
1061 /* Check if TXQ queue needs to be serviced */
1062 if (!list_empty(&pring->txq))
1063 lpfc_worker_wake_up(phba);
1069 * Clean all volatile data fields, preserve iotag and node struct.
1071 memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1072 iocbq->sli4_lxritag = NO_XRI;
1073 iocbq->sli4_xritag = NO_XRI;
1074 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1079 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
1080 * @phba: Pointer to HBA context object.
1081 * @iocbq: Pointer to driver iocb object.
1083 * This function is called with hbalock held to release driver
1084 * iocb object to the iocb pool. The iotag in the iocb object
1085 * does not change for each use of the iocb object. This function
1086 * clears all other fields of the iocb object when it is freed.
1089 __lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1091 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1095 * Clean all volatile data fields, preserve iotag and node struct.
1097 memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1098 iocbq->sli4_xritag = NO_XRI;
1099 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1103 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
1104 * @phba: Pointer to HBA context object.
1105 * @iocbq: Pointer to driver iocb object.
1107 * This function is called with hbalock held to release driver
1108 * iocb object to the iocb pool. The iotag in the iocb object
1109 * does not change for each use of the iocb object. This function
1110 * clears all other fields of the iocb object when it is freed.
1113 __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1115 phba->__lpfc_sli_release_iocbq(phba, iocbq);
1120 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
1121 * @phba: Pointer to HBA context object.
1122 * @iocbq: Pointer to driver iocb object.
1124 * This function is called with no lock held to release the iocb to
1128 lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1130 unsigned long iflags;
1133 * Clean all volatile data fields, preserve iotag and node struct.
1135 spin_lock_irqsave(&phba->hbalock, iflags);
1136 __lpfc_sli_release_iocbq(phba, iocbq);
1137 spin_unlock_irqrestore(&phba->hbalock, iflags);
1141 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
1142 * @phba: Pointer to HBA context object.
1143 * @iocblist: List of IOCBs.
1144 * @ulpstatus: ULP status in IOCB command field.
1145 * @ulpWord4: ULP word-4 in IOCB command field.
1147 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
1148 * on the list by invoking the complete callback function associated with the
1149 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
1153 lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
1154 uint32_t ulpstatus, uint32_t ulpWord4)
1156 struct lpfc_iocbq *piocb;
1158 while (!list_empty(iocblist)) {
1159 list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
1160 if (!piocb->iocb_cmpl)
1161 lpfc_sli_release_iocbq(phba, piocb);
1163 piocb->iocb.ulpStatus = ulpstatus;
1164 piocb->iocb.un.ulpWord[4] = ulpWord4;
1165 (piocb->iocb_cmpl) (phba, piocb, piocb);
1172 * lpfc_sli_iocb_cmd_type - Get the iocb type
1173 * @iocb_cmnd: iocb command code.
1175 * This function is called by ring event handler function to get the iocb type.
1176 * This function translates the iocb command to an iocb command type used to
1177 * decide the final disposition of each completed IOCB.
1178 * The function returns
1179 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
1180 * LPFC_SOL_IOCB if it is a solicited iocb completion
1181 * LPFC_ABORT_IOCB if it is an abort iocb
1182 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
1184 * The caller is not required to hold any lock.
1186 static lpfc_iocb_type
1187 lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
1189 lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
1191 if (iocb_cmnd > CMD_MAX_IOCB_CMD)
1194 switch (iocb_cmnd) {
1195 case CMD_XMIT_SEQUENCE_CR:
1196 case CMD_XMIT_SEQUENCE_CX:
1197 case CMD_XMIT_BCAST_CN:
1198 case CMD_XMIT_BCAST_CX:
1199 case CMD_ELS_REQUEST_CR:
1200 case CMD_ELS_REQUEST_CX:
1201 case CMD_CREATE_XRI_CR:
1202 case CMD_CREATE_XRI_CX:
1203 case CMD_GET_RPI_CN:
1204 case CMD_XMIT_ELS_RSP_CX:
1205 case CMD_GET_RPI_CR:
1206 case CMD_FCP_IWRITE_CR:
1207 case CMD_FCP_IWRITE_CX:
1208 case CMD_FCP_IREAD_CR:
1209 case CMD_FCP_IREAD_CX:
1210 case CMD_FCP_ICMND_CR:
1211 case CMD_FCP_ICMND_CX:
1212 case CMD_FCP_TSEND_CX:
1213 case CMD_FCP_TRSP_CX:
1214 case CMD_FCP_TRECEIVE_CX:
1215 case CMD_FCP_AUTO_TRSP_CX:
1216 case CMD_ADAPTER_MSG:
1217 case CMD_ADAPTER_DUMP:
1218 case CMD_XMIT_SEQUENCE64_CR:
1219 case CMD_XMIT_SEQUENCE64_CX:
1220 case CMD_XMIT_BCAST64_CN:
1221 case CMD_XMIT_BCAST64_CX:
1222 case CMD_ELS_REQUEST64_CR:
1223 case CMD_ELS_REQUEST64_CX:
1224 case CMD_FCP_IWRITE64_CR:
1225 case CMD_FCP_IWRITE64_CX:
1226 case CMD_FCP_IREAD64_CR:
1227 case CMD_FCP_IREAD64_CX:
1228 case CMD_FCP_ICMND64_CR:
1229 case CMD_FCP_ICMND64_CX:
1230 case CMD_FCP_TSEND64_CX:
1231 case CMD_FCP_TRSP64_CX:
1232 case CMD_FCP_TRECEIVE64_CX:
1233 case CMD_GEN_REQUEST64_CR:
1234 case CMD_GEN_REQUEST64_CX:
1235 case CMD_XMIT_ELS_RSP64_CX:
1236 case DSSCMD_IWRITE64_CR:
1237 case DSSCMD_IWRITE64_CX:
1238 case DSSCMD_IREAD64_CR:
1239 case DSSCMD_IREAD64_CX:
1240 type = LPFC_SOL_IOCB;
1242 case CMD_ABORT_XRI_CN:
1243 case CMD_ABORT_XRI_CX:
1244 case CMD_CLOSE_XRI_CN:
1245 case CMD_CLOSE_XRI_CX:
1246 case CMD_XRI_ABORTED_CX:
1247 case CMD_ABORT_MXRI64_CN:
1248 case CMD_XMIT_BLS_RSP64_CX:
1249 type = LPFC_ABORT_IOCB;
1251 case CMD_RCV_SEQUENCE_CX:
1252 case CMD_RCV_ELS_REQ_CX:
1253 case CMD_RCV_SEQUENCE64_CX:
1254 case CMD_RCV_ELS_REQ64_CX:
1255 case CMD_ASYNC_STATUS:
1256 case CMD_IOCB_RCV_SEQ64_CX:
1257 case CMD_IOCB_RCV_ELS64_CX:
1258 case CMD_IOCB_RCV_CONT64_CX:
1259 case CMD_IOCB_RET_XRI64_CX:
1260 type = LPFC_UNSOL_IOCB;
1262 case CMD_IOCB_XMIT_MSEQ64_CR:
1263 case CMD_IOCB_XMIT_MSEQ64_CX:
1264 case CMD_IOCB_RCV_SEQ_LIST64_CX:
1265 case CMD_IOCB_RCV_ELS_LIST64_CX:
1266 case CMD_IOCB_CLOSE_EXTENDED_CN:
1267 case CMD_IOCB_ABORT_EXTENDED_CN:
1268 case CMD_IOCB_RET_HBQE64_CN:
1269 case CMD_IOCB_FCP_IBIDIR64_CR:
1270 case CMD_IOCB_FCP_IBIDIR64_CX:
1271 case CMD_IOCB_FCP_ITASKMGT64_CX:
1272 case CMD_IOCB_LOGENTRY_CN:
1273 case CMD_IOCB_LOGENTRY_ASYNC_CN:
1274 printk("%s - Unhandled SLI-3 Command x%x\n",
1275 __func__, iocb_cmnd);
1276 type = LPFC_UNKNOWN_IOCB;
1279 type = LPFC_UNKNOWN_IOCB;
1287 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
1288 * @phba: Pointer to HBA context object.
1290 * This function is called from SLI initialization code
1291 * to configure every ring of the HBA's SLI interface. The
1292 * caller is not required to hold any lock. This function issues
1293 * a config_ring mailbox command for each ring.
1294 * This function returns zero if successful else returns a negative
1298 lpfc_sli_ring_map(struct lpfc_hba *phba)
1300 struct lpfc_sli *psli = &phba->sli;
1305 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1309 phba->link_state = LPFC_INIT_MBX_CMDS;
1310 for (i = 0; i < psli->num_rings; i++) {
1311 lpfc_config_ring(phba, i, pmb);
1312 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
1313 if (rc != MBX_SUCCESS) {
1314 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1315 "0446 Adapter failed to init (%d), "
1316 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
1318 rc, pmbox->mbxCommand,
1319 pmbox->mbxStatus, i);
1320 phba->link_state = LPFC_HBA_ERROR;
1325 mempool_free(pmb, phba->mbox_mem_pool);
1330 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
1331 * @phba: Pointer to HBA context object.
1332 * @pring: Pointer to driver SLI ring object.
1333 * @piocb: Pointer to the driver iocb object.
1335 * This function is called with hbalock held. The function adds the
1336 * new iocb to txcmplq of the given ring. This function always returns
1337 * 0. If this function is called for ELS ring, this function checks if
1338 * there is a vport associated with the ELS command. This function also
1339 * starts els_tmofunc timer if this is an ELS command.
1342 lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1343 struct lpfc_iocbq *piocb)
1345 list_add_tail(&piocb->list, &pring->txcmplq);
1346 piocb->iocb_flag |= LPFC_IO_ON_TXCMPLQ;
1348 if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
1349 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
1350 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN) &&
1351 (!(piocb->vport->load_flag & FC_UNLOADING))) {
1355 mod_timer(&piocb->vport->els_tmofunc,
1357 msecs_to_jiffies(1000 * (phba->fc_ratov << 1)));
1365 * lpfc_sli_ringtx_get - Get first element of the txq
1366 * @phba: Pointer to HBA context object.
1367 * @pring: Pointer to driver SLI ring object.
1369 * This function is called with hbalock held to get next
1370 * iocb in txq of the given ring. If there is any iocb in
1371 * the txq, the function returns first iocb in the list after
1372 * removing the iocb from the list, else it returns NULL.
1375 lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1377 struct lpfc_iocbq *cmd_iocb;
1379 list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
1384 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
1385 * @phba: Pointer to HBA context object.
1386 * @pring: Pointer to driver SLI ring object.
1388 * This function is called with hbalock held and the caller must post the
1389 * iocb without releasing the lock. If the caller releases the lock,
1390 * iocb slot returned by the function is not guaranteed to be available.
1391 * The function returns pointer to the next available iocb slot if there
1392 * is available slot in the ring, else it returns NULL.
1393 * If the get index of the ring is ahead of the put index, the function
1394 * will post an error attention event to the worker thread to take the
1395 * HBA to offline state.
1398 lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1400 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
1401 uint32_t max_cmd_idx = pring->sli.sli3.numCiocb;
1402 if ((pring->sli.sli3.next_cmdidx == pring->sli.sli3.cmdidx) &&
1403 (++pring->sli.sli3.next_cmdidx >= max_cmd_idx))
1404 pring->sli.sli3.next_cmdidx = 0;
1406 if (unlikely(pring->sli.sli3.local_getidx ==
1407 pring->sli.sli3.next_cmdidx)) {
1409 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
1411 if (unlikely(pring->sli.sli3.local_getidx >= max_cmd_idx)) {
1412 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1413 "0315 Ring %d issue: portCmdGet %d "
1414 "is bigger than cmd ring %d\n",
1416 pring->sli.sli3.local_getidx,
1419 phba->link_state = LPFC_HBA_ERROR;
1421 * All error attention handlers are posted to
1424 phba->work_ha |= HA_ERATT;
1425 phba->work_hs = HS_FFER3;
1427 lpfc_worker_wake_up(phba);
1432 if (pring->sli.sli3.local_getidx == pring->sli.sli3.next_cmdidx)
1436 return lpfc_cmd_iocb(phba, pring);
1440 * lpfc_sli_next_iotag - Get an iotag for the iocb
1441 * @phba: Pointer to HBA context object.
1442 * @iocbq: Pointer to driver iocb object.
1444 * This function gets an iotag for the iocb. If there is no unused iotag and
1445 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
1446 * array and assigns a new iotag.
1447 * The function returns the allocated iotag if successful, else returns zero.
1448 * Zero is not a valid iotag.
1449 * The caller is not required to hold any lock.
1452 lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1454 struct lpfc_iocbq **new_arr;
1455 struct lpfc_iocbq **old_arr;
1457 struct lpfc_sli *psli = &phba->sli;
1460 spin_lock_irq(&phba->hbalock);
1461 iotag = psli->last_iotag;
1462 if(++iotag < psli->iocbq_lookup_len) {
1463 psli->last_iotag = iotag;
1464 psli->iocbq_lookup[iotag] = iocbq;
1465 spin_unlock_irq(&phba->hbalock);
1466 iocbq->iotag = iotag;
1468 } else if (psli->iocbq_lookup_len < (0xffff
1469 - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
1470 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
1471 spin_unlock_irq(&phba->hbalock);
1472 new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *),
1475 spin_lock_irq(&phba->hbalock);
1476 old_arr = psli->iocbq_lookup;
1477 if (new_len <= psli->iocbq_lookup_len) {
1478 /* highly unprobable case */
1480 iotag = psli->last_iotag;
1481 if(++iotag < psli->iocbq_lookup_len) {
1482 psli->last_iotag = iotag;
1483 psli->iocbq_lookup[iotag] = iocbq;
1484 spin_unlock_irq(&phba->hbalock);
1485 iocbq->iotag = iotag;
1488 spin_unlock_irq(&phba->hbalock);
1491 if (psli->iocbq_lookup)
1492 memcpy(new_arr, old_arr,
1493 ((psli->last_iotag + 1) *
1494 sizeof (struct lpfc_iocbq *)));
1495 psli->iocbq_lookup = new_arr;
1496 psli->iocbq_lookup_len = new_len;
1497 psli->last_iotag = iotag;
1498 psli->iocbq_lookup[iotag] = iocbq;
1499 spin_unlock_irq(&phba->hbalock);
1500 iocbq->iotag = iotag;
1505 spin_unlock_irq(&phba->hbalock);
1507 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
1508 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1515 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
1516 * @phba: Pointer to HBA context object.
1517 * @pring: Pointer to driver SLI ring object.
1518 * @iocb: Pointer to iocb slot in the ring.
1519 * @nextiocb: Pointer to driver iocb object which need to be
1520 * posted to firmware.
1522 * This function is called with hbalock held to post a new iocb to
1523 * the firmware. This function copies the new iocb to ring iocb slot and
1524 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1525 * a completion call back for this iocb else the function will free the
1529 lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1530 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
1535 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
1538 if (pring->ringno == LPFC_ELS_RING) {
1539 lpfc_debugfs_slow_ring_trc(phba,
1540 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1541 *(((uint32_t *) &nextiocb->iocb) + 4),
1542 *(((uint32_t *) &nextiocb->iocb) + 6),
1543 *(((uint32_t *) &nextiocb->iocb) + 7));
1547 * Issue iocb command to adapter
1549 lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
1551 pring->stats.iocb_cmd++;
1554 * If there is no completion routine to call, we can release the
1555 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1556 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1558 if (nextiocb->iocb_cmpl)
1559 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
1561 __lpfc_sli_release_iocbq(phba, nextiocb);
1564 * Let the HBA know what IOCB slot will be the next one the
1565 * driver will put a command into.
1567 pring->sli.sli3.cmdidx = pring->sli.sli3.next_cmdidx;
1568 writel(pring->sli.sli3.cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
1572 * lpfc_sli_update_full_ring - Update the chip attention register
1573 * @phba: Pointer to HBA context object.
1574 * @pring: Pointer to driver SLI ring object.
1576 * The caller is not required to hold any lock for calling this function.
1577 * This function updates the chip attention bits for the ring to inform firmware
1578 * that there are pending work to be done for this ring and requests an
1579 * interrupt when there is space available in the ring. This function is
1580 * called when the driver is unable to post more iocbs to the ring due
1581 * to unavailability of space in the ring.
1584 lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1586 int ringno = pring->ringno;
1588 pring->flag |= LPFC_CALL_RING_AVAILABLE;
1593 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1594 * The HBA will tell us when an IOCB entry is available.
1596 writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
1597 readl(phba->CAregaddr); /* flush */
1599 pring->stats.iocb_cmd_full++;
1603 * lpfc_sli_update_ring - Update chip attention register
1604 * @phba: Pointer to HBA context object.
1605 * @pring: Pointer to driver SLI ring object.
1607 * This function updates the chip attention register bit for the
1608 * given ring to inform HBA that there is more work to be done
1609 * in this ring. The caller is not required to hold any lock.
1612 lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1614 int ringno = pring->ringno;
1617 * Tell the HBA that there is work to do in this ring.
1619 if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
1621 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
1622 readl(phba->CAregaddr); /* flush */
1627 * lpfc_sli_resume_iocb - Process iocbs in the txq
1628 * @phba: Pointer to HBA context object.
1629 * @pring: Pointer to driver SLI ring object.
1631 * This function is called with hbalock held to post pending iocbs
1632 * in the txq to the firmware. This function is called when driver
1633 * detects space available in the ring.
1636 lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1639 struct lpfc_iocbq *nextiocb;
1643 * (a) there is anything on the txq to send
1645 * (c) link attention events can be processed (fcp ring only)
1646 * (d) IOCB processing is not blocked by the outstanding mbox command.
1649 if (lpfc_is_link_up(phba) &&
1650 (!list_empty(&pring->txq)) &&
1651 (pring->ringno != phba->sli.fcp_ring ||
1652 phba->sli.sli_flag & LPFC_PROCESS_LA)) {
1654 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
1655 (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
1656 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
1659 lpfc_sli_update_ring(phba, pring);
1661 lpfc_sli_update_full_ring(phba, pring);
1668 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
1669 * @phba: Pointer to HBA context object.
1670 * @hbqno: HBQ number.
1672 * This function is called with hbalock held to get the next
1673 * available slot for the given HBQ. If there is free slot
1674 * available for the HBQ it will return pointer to the next available
1675 * HBQ entry else it will return NULL.
1677 static struct lpfc_hbq_entry *
1678 lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
1680 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1682 if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
1683 ++hbqp->next_hbqPutIdx >= hbqp->entry_count)
1684 hbqp->next_hbqPutIdx = 0;
1686 if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
1687 uint32_t raw_index = phba->hbq_get[hbqno];
1688 uint32_t getidx = le32_to_cpu(raw_index);
1690 hbqp->local_hbqGetIdx = getidx;
1692 if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
1693 lpfc_printf_log(phba, KERN_ERR,
1694 LOG_SLI | LOG_VPORT,
1695 "1802 HBQ %d: local_hbqGetIdx "
1696 "%u is > than hbqp->entry_count %u\n",
1697 hbqno, hbqp->local_hbqGetIdx,
1700 phba->link_state = LPFC_HBA_ERROR;
1704 if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
1708 return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
1713 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
1714 * @phba: Pointer to HBA context object.
1716 * This function is called with no lock held to free all the
1717 * hbq buffers while uninitializing the SLI interface. It also
1718 * frees the HBQ buffers returned by the firmware but not yet
1719 * processed by the upper layers.
1722 lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
1724 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
1725 struct hbq_dmabuf *hbq_buf;
1726 unsigned long flags;
1730 hbq_count = lpfc_sli_hbq_count();
1731 /* Return all memory used by all HBQs */
1732 spin_lock_irqsave(&phba->hbalock, flags);
1733 for (i = 0; i < hbq_count; ++i) {
1734 list_for_each_entry_safe(dmabuf, next_dmabuf,
1735 &phba->hbqs[i].hbq_buffer_list, list) {
1736 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1737 list_del(&hbq_buf->dbuf.list);
1738 (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
1740 phba->hbqs[i].buffer_count = 0;
1742 /* Return all HBQ buffer that are in-fly */
1743 list_for_each_entry_safe(dmabuf, next_dmabuf, &phba->rb_pend_list,
1745 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1746 list_del(&hbq_buf->dbuf.list);
1747 if (hbq_buf->tag == -1) {
1748 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1751 hbqno = hbq_buf->tag >> 16;
1752 if (hbqno >= LPFC_MAX_HBQS)
1753 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1756 (phba->hbqs[hbqno].hbq_free_buffer)(phba,
1761 /* Mark the HBQs not in use */
1762 phba->hbq_in_use = 0;
1763 spin_unlock_irqrestore(&phba->hbalock, flags);
1767 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
1768 * @phba: Pointer to HBA context object.
1769 * @hbqno: HBQ number.
1770 * @hbq_buf: Pointer to HBQ buffer.
1772 * This function is called with the hbalock held to post a
1773 * hbq buffer to the firmware. If the function finds an empty
1774 * slot in the HBQ, it will post the buffer. The function will return
1775 * pointer to the hbq entry if it successfully post the buffer
1776 * else it will return NULL.
1779 lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
1780 struct hbq_dmabuf *hbq_buf)
1782 return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
1786 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
1787 * @phba: Pointer to HBA context object.
1788 * @hbqno: HBQ number.
1789 * @hbq_buf: Pointer to HBQ buffer.
1791 * This function is called with the hbalock held to post a hbq buffer to the
1792 * firmware. If the function finds an empty slot in the HBQ, it will post the
1793 * buffer and place it on the hbq_buffer_list. The function will return zero if
1794 * it successfully post the buffer else it will return an error.
1797 lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
1798 struct hbq_dmabuf *hbq_buf)
1800 struct lpfc_hbq_entry *hbqe;
1801 dma_addr_t physaddr = hbq_buf->dbuf.phys;
1803 /* Get next HBQ entry slot to use */
1804 hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
1806 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1808 hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
1809 hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
1810 hbqe->bde.tus.f.bdeSize = hbq_buf->size;
1811 hbqe->bde.tus.f.bdeFlags = 0;
1812 hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
1813 hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
1815 hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
1816 writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
1818 readl(phba->hbq_put + hbqno);
1819 list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
1826 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
1827 * @phba: Pointer to HBA context object.
1828 * @hbqno: HBQ number.
1829 * @hbq_buf: Pointer to HBQ buffer.
1831 * This function is called with the hbalock held to post an RQE to the SLI4
1832 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
1833 * the hbq_buffer_list and return zero, otherwise it will return an error.
1836 lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
1837 struct hbq_dmabuf *hbq_buf)
1840 struct lpfc_rqe hrqe;
1841 struct lpfc_rqe drqe;
1843 hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
1844 hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
1845 drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
1846 drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
1847 rc = lpfc_sli4_rq_put(phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
1852 list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
1856 /* HBQ for ELS and CT traffic. */
1857 static struct lpfc_hbq_init lpfc_els_hbq = {
1862 .ring_mask = (1 << LPFC_ELS_RING),
1868 /* HBQ for the extra ring if needed */
1869 static struct lpfc_hbq_init lpfc_extra_hbq = {
1874 .ring_mask = (1 << LPFC_EXTRA_RING),
1881 struct lpfc_hbq_init *lpfc_hbq_defs[] = {
1887 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
1888 * @phba: Pointer to HBA context object.
1889 * @hbqno: HBQ number.
1890 * @count: Number of HBQ buffers to be posted.
1892 * This function is called with no lock held to post more hbq buffers to the
1893 * given HBQ. The function returns the number of HBQ buffers successfully
1897 lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
1899 uint32_t i, posted = 0;
1900 unsigned long flags;
1901 struct hbq_dmabuf *hbq_buffer;
1902 LIST_HEAD(hbq_buf_list);
1903 if (!phba->hbqs[hbqno].hbq_alloc_buffer)
1906 if ((phba->hbqs[hbqno].buffer_count + count) >
1907 lpfc_hbq_defs[hbqno]->entry_count)
1908 count = lpfc_hbq_defs[hbqno]->entry_count -
1909 phba->hbqs[hbqno].buffer_count;
1912 /* Allocate HBQ entries */
1913 for (i = 0; i < count; i++) {
1914 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
1917 list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
1919 /* Check whether HBQ is still in use */
1920 spin_lock_irqsave(&phba->hbalock, flags);
1921 if (!phba->hbq_in_use)
1923 while (!list_empty(&hbq_buf_list)) {
1924 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1926 hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
1928 if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
1929 phba->hbqs[hbqno].buffer_count++;
1932 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1934 spin_unlock_irqrestore(&phba->hbalock, flags);
1937 spin_unlock_irqrestore(&phba->hbalock, flags);
1938 while (!list_empty(&hbq_buf_list)) {
1939 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1941 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1947 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
1948 * @phba: Pointer to HBA context object.
1951 * This function posts more buffers to the HBQ. This function
1952 * is called with no lock held. The function returns the number of HBQ entries
1953 * successfully allocated.
1956 lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
1958 if (phba->sli_rev == LPFC_SLI_REV4)
1961 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1962 lpfc_hbq_defs[qno]->add_count);
1966 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
1967 * @phba: Pointer to HBA context object.
1968 * @qno: HBQ queue number.
1970 * This function is called from SLI initialization code path with
1971 * no lock held to post initial HBQ buffers to firmware. The
1972 * function returns the number of HBQ entries successfully allocated.
1975 lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
1977 if (phba->sli_rev == LPFC_SLI_REV4)
1978 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1979 lpfc_hbq_defs[qno]->entry_count);
1981 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1982 lpfc_hbq_defs[qno]->init_count);
1986 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
1987 * @phba: Pointer to HBA context object.
1988 * @hbqno: HBQ number.
1990 * This function removes the first hbq buffer on an hbq list and returns a
1991 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
1993 static struct hbq_dmabuf *
1994 lpfc_sli_hbqbuf_get(struct list_head *rb_list)
1996 struct lpfc_dmabuf *d_buf;
1998 list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
2001 return container_of(d_buf, struct hbq_dmabuf, dbuf);
2005 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
2006 * @phba: Pointer to HBA context object.
2007 * @tag: Tag of the hbq buffer.
2009 * This function is called with hbalock held. This function searches
2010 * for the hbq buffer associated with the given tag in the hbq buffer
2011 * list. If it finds the hbq buffer, it returns the hbq_buffer other wise
2014 static struct hbq_dmabuf *
2015 lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
2017 struct lpfc_dmabuf *d_buf;
2018 struct hbq_dmabuf *hbq_buf;
2022 if (hbqno >= LPFC_MAX_HBQS)
2025 spin_lock_irq(&phba->hbalock);
2026 list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
2027 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
2028 if (hbq_buf->tag == tag) {
2029 spin_unlock_irq(&phba->hbalock);
2033 spin_unlock_irq(&phba->hbalock);
2034 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT,
2035 "1803 Bad hbq tag. Data: x%x x%x\n",
2036 tag, phba->hbqs[tag >> 16].buffer_count);
2041 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
2042 * @phba: Pointer to HBA context object.
2043 * @hbq_buffer: Pointer to HBQ buffer.
2045 * This function is called with hbalock. This function gives back
2046 * the hbq buffer to firmware. If the HBQ does not have space to
2047 * post the buffer, it will free the buffer.
2050 lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
2055 hbqno = hbq_buffer->tag >> 16;
2056 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
2057 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
2062 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
2063 * @mbxCommand: mailbox command code.
2065 * This function is called by the mailbox event handler function to verify
2066 * that the completed mailbox command is a legitimate mailbox command. If the
2067 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
2068 * and the mailbox event handler will take the HBA offline.
2071 lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
2075 switch (mbxCommand) {
2079 case MBX_WRITE_VPARMS:
2080 case MBX_RUN_BIU_DIAG:
2083 case MBX_CONFIG_LINK:
2084 case MBX_CONFIG_RING:
2085 case MBX_RESET_RING:
2086 case MBX_READ_CONFIG:
2087 case MBX_READ_RCONFIG:
2088 case MBX_READ_SPARM:
2089 case MBX_READ_STATUS:
2093 case MBX_READ_LNK_STAT:
2095 case MBX_UNREG_LOGIN:
2097 case MBX_DUMP_MEMORY:
2098 case MBX_DUMP_CONTEXT:
2101 case MBX_UPDATE_CFG:
2103 case MBX_DEL_LD_ENTRY:
2104 case MBX_RUN_PROGRAM:
2106 case MBX_SET_VARIABLE:
2107 case MBX_UNREG_D_ID:
2108 case MBX_KILL_BOARD:
2109 case MBX_CONFIG_FARP:
2112 case MBX_RUN_BIU_DIAG64:
2113 case MBX_CONFIG_PORT:
2114 case MBX_READ_SPARM64:
2115 case MBX_READ_RPI64:
2116 case MBX_REG_LOGIN64:
2117 case MBX_READ_TOPOLOGY:
2120 case MBX_LOAD_EXP_ROM:
2121 case MBX_ASYNCEVT_ENABLE:
2125 case MBX_PORT_CAPABILITIES:
2126 case MBX_PORT_IOV_CONTROL:
2127 case MBX_SLI4_CONFIG:
2128 case MBX_SLI4_REQ_FTRS:
2130 case MBX_UNREG_FCFI:
2135 case MBX_RESUME_RPI:
2136 case MBX_READ_EVENT_LOG_STATUS:
2137 case MBX_READ_EVENT_LOG:
2138 case MBX_SECURITY_MGMT:
2140 case MBX_ACCESS_VDATA:
2151 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
2152 * @phba: Pointer to HBA context object.
2153 * @pmboxq: Pointer to mailbox command.
2155 * This is completion handler function for mailbox commands issued from
2156 * lpfc_sli_issue_mbox_wait function. This function is called by the
2157 * mailbox event handler function with no lock held. This function
2158 * will wake up thread waiting on the wait queue pointed by context1
2162 lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
2164 wait_queue_head_t *pdone_q;
2165 unsigned long drvr_flag;
2168 * If pdone_q is empty, the driver thread gave up waiting and
2169 * continued running.
2171 pmboxq->mbox_flag |= LPFC_MBX_WAKE;
2172 spin_lock_irqsave(&phba->hbalock, drvr_flag);
2173 pdone_q = (wait_queue_head_t *) pmboxq->context1;
2175 wake_up_interruptible(pdone_q);
2176 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
2182 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
2183 * @phba: Pointer to HBA context object.
2184 * @pmb: Pointer to mailbox object.
2186 * This function is the default mailbox completion handler. It
2187 * frees the memory resources associated with the completed mailbox
2188 * command. If the completed command is a REG_LOGIN mailbox command,
2189 * this function will issue a UREG_LOGIN to re-claim the RPI.
2192 lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2194 struct lpfc_vport *vport = pmb->vport;
2195 struct lpfc_dmabuf *mp;
2196 struct lpfc_nodelist *ndlp;
2197 struct Scsi_Host *shost;
2201 mp = (struct lpfc_dmabuf *) (pmb->context1);
2204 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2209 * If a REG_LOGIN succeeded after node is destroyed or node
2210 * is in re-discovery driver need to cleanup the RPI.
2212 if (!(phba->pport->load_flag & FC_UNLOADING) &&
2213 pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
2214 !pmb->u.mb.mbxStatus) {
2215 rpi = pmb->u.mb.un.varWords[0];
2216 vpi = pmb->u.mb.un.varRegLogin.vpi;
2217 lpfc_unreg_login(phba, vpi, rpi, pmb);
2218 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2219 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2220 if (rc != MBX_NOT_FINISHED)
2224 if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) &&
2225 !(phba->pport->load_flag & FC_UNLOADING) &&
2226 !pmb->u.mb.mbxStatus) {
2227 shost = lpfc_shost_from_vport(vport);
2228 spin_lock_irq(shost->host_lock);
2229 vport->vpi_state |= LPFC_VPI_REGISTERED;
2230 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
2231 spin_unlock_irq(shost->host_lock);
2234 if (pmb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
2235 ndlp = (struct lpfc_nodelist *)pmb->context2;
2237 pmb->context2 = NULL;
2240 /* Check security permission status on INIT_LINK mailbox command */
2241 if ((pmb->u.mb.mbxCommand == MBX_INIT_LINK) &&
2242 (pmb->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
2243 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2244 "2860 SLI authentication is required "
2245 "for INIT_LINK but has not done yet\n");
2247 if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
2248 lpfc_sli4_mbox_cmd_free(phba, pmb);
2250 mempool_free(pmb, phba->mbox_mem_pool);
2254 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
2255 * @phba: Pointer to HBA context object.
2257 * This function is called with no lock held. This function processes all
2258 * the completed mailbox commands and gives it to upper layers. The interrupt
2259 * service routine processes mailbox completion interrupt and adds completed
2260 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
2261 * Worker thread call lpfc_sli_handle_mb_event, which will return the
2262 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
2263 * function returns the mailbox commands to the upper layer by calling the
2264 * completion handler function of each mailbox.
2267 lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
2274 phba->sli.slistat.mbox_event++;
2276 /* Get all completed mailboxe buffers into the cmplq */
2277 spin_lock_irq(&phba->hbalock);
2278 list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
2279 spin_unlock_irq(&phba->hbalock);
2281 /* Get a Mailbox buffer to setup mailbox commands for callback */
2283 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
2289 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
2291 lpfc_debugfs_disc_trc(pmb->vport,
2292 LPFC_DISC_TRC_MBOX_VPORT,
2293 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
2294 (uint32_t)pmbox->mbxCommand,
2295 pmbox->un.varWords[0],
2296 pmbox->un.varWords[1]);
2299 lpfc_debugfs_disc_trc(phba->pport,
2301 "MBOX cmpl: cmd:x%x mb:x%x x%x",
2302 (uint32_t)pmbox->mbxCommand,
2303 pmbox->un.varWords[0],
2304 pmbox->un.varWords[1]);
2309 * It is a fatal error if unknown mbox command completion.
2311 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
2313 /* Unknown mailbox command compl */
2314 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2315 "(%d):0323 Unknown Mailbox command "
2316 "x%x (x%x/x%x) Cmpl\n",
2317 pmb->vport ? pmb->vport->vpi : 0,
2319 lpfc_sli_config_mbox_subsys_get(phba,
2321 lpfc_sli_config_mbox_opcode_get(phba,
2323 phba->link_state = LPFC_HBA_ERROR;
2324 phba->work_hs = HS_FFER3;
2325 lpfc_handle_eratt(phba);
2329 if (pmbox->mbxStatus) {
2330 phba->sli.slistat.mbox_stat_err++;
2331 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
2332 /* Mbox cmd cmpl error - RETRYing */
2333 lpfc_printf_log(phba, KERN_INFO,
2335 "(%d):0305 Mbox cmd cmpl "
2336 "error - RETRYing Data: x%x "
2337 "(x%x/x%x) x%x x%x x%x\n",
2338 pmb->vport ? pmb->vport->vpi : 0,
2340 lpfc_sli_config_mbox_subsys_get(phba,
2342 lpfc_sli_config_mbox_opcode_get(phba,
2345 pmbox->un.varWords[0],
2346 pmb->vport->port_state);
2347 pmbox->mbxStatus = 0;
2348 pmbox->mbxOwner = OWN_HOST;
2349 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2350 if (rc != MBX_NOT_FINISHED)
2355 /* Mailbox cmd <cmd> Cmpl <cmpl> */
2356 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
2357 "(%d):0307 Mailbox cmd x%x (x%x/x%x) Cmpl x%p "
2358 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
2360 pmb->vport ? pmb->vport->vpi : 0,
2362 lpfc_sli_config_mbox_subsys_get(phba, pmb),
2363 lpfc_sli_config_mbox_opcode_get(phba, pmb),
2365 *((uint32_t *) pmbox),
2366 pmbox->un.varWords[0],
2367 pmbox->un.varWords[1],
2368 pmbox->un.varWords[2],
2369 pmbox->un.varWords[3],
2370 pmbox->un.varWords[4],
2371 pmbox->un.varWords[5],
2372 pmbox->un.varWords[6],
2373 pmbox->un.varWords[7],
2374 pmbox->un.varWords[8],
2375 pmbox->un.varWords[9],
2376 pmbox->un.varWords[10]);
2379 pmb->mbox_cmpl(phba,pmb);
2385 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
2386 * @phba: Pointer to HBA context object.
2387 * @pring: Pointer to driver SLI ring object.
2390 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
2391 * is set in the tag the buffer is posted for a particular exchange,
2392 * the function will return the buffer without replacing the buffer.
2393 * If the buffer is for unsolicited ELS or CT traffic, this function
2394 * returns the buffer and also posts another buffer to the firmware.
2396 static struct lpfc_dmabuf *
2397 lpfc_sli_get_buff(struct lpfc_hba *phba,
2398 struct lpfc_sli_ring *pring,
2401 struct hbq_dmabuf *hbq_entry;
2403 if (tag & QUE_BUFTAG_BIT)
2404 return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
2405 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
2408 return &hbq_entry->dbuf;
2412 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
2413 * @phba: Pointer to HBA context object.
2414 * @pring: Pointer to driver SLI ring object.
2415 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
2416 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
2417 * @fch_type: the type for the first frame of the sequence.
2419 * This function is called with no lock held. This function uses the r_ctl and
2420 * type of the received sequence to find the correct callback function to call
2421 * to process the sequence.
2424 lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2425 struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
2430 /* unSolicited Responses */
2431 if (pring->prt[0].profile) {
2432 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
2433 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
2437 /* We must search, based on rctl / type
2438 for the right routine */
2439 for (i = 0; i < pring->num_mask; i++) {
2440 if ((pring->prt[i].rctl == fch_r_ctl) &&
2441 (pring->prt[i].type == fch_type)) {
2442 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
2443 (pring->prt[i].lpfc_sli_rcv_unsol_event)
2444 (phba, pring, saveq);
2452 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
2453 * @phba: Pointer to HBA context object.
2454 * @pring: Pointer to driver SLI ring object.
2455 * @saveq: Pointer to the unsolicited iocb.
2457 * This function is called with no lock held by the ring event handler
2458 * when there is an unsolicited iocb posted to the response ring by the
2459 * firmware. This function gets the buffer associated with the iocbs
2460 * and calls the event handler for the ring. This function handles both
2461 * qring buffers and hbq buffers.
2462 * When the function returns 1 the caller can free the iocb object otherwise
2463 * upper layer functions will free the iocb objects.
2466 lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2467 struct lpfc_iocbq *saveq)
2471 uint32_t Rctl, Type;
2473 struct lpfc_iocbq *iocbq;
2474 struct lpfc_dmabuf *dmzbuf;
2477 irsp = &(saveq->iocb);
2479 if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
2480 if (pring->lpfc_sli_rcv_async_status)
2481 pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
2483 lpfc_printf_log(phba,
2486 "0316 Ring %d handler: unexpected "
2487 "ASYNC_STATUS iocb received evt_code "
2490 irsp->un.asyncstat.evt_code);
2494 if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
2495 (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
2496 if (irsp->ulpBdeCount > 0) {
2497 dmzbuf = lpfc_sli_get_buff(phba, pring,
2498 irsp->un.ulpWord[3]);
2499 lpfc_in_buf_free(phba, dmzbuf);
2502 if (irsp->ulpBdeCount > 1) {
2503 dmzbuf = lpfc_sli_get_buff(phba, pring,
2504 irsp->unsli3.sli3Words[3]);
2505 lpfc_in_buf_free(phba, dmzbuf);
2508 if (irsp->ulpBdeCount > 2) {
2509 dmzbuf = lpfc_sli_get_buff(phba, pring,
2510 irsp->unsli3.sli3Words[7]);
2511 lpfc_in_buf_free(phba, dmzbuf);
2517 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
2518 if (irsp->ulpBdeCount != 0) {
2519 saveq->context2 = lpfc_sli_get_buff(phba, pring,
2520 irsp->un.ulpWord[3]);
2521 if (!saveq->context2)
2522 lpfc_printf_log(phba,
2525 "0341 Ring %d Cannot find buffer for "
2526 "an unsolicited iocb. tag 0x%x\n",
2528 irsp->un.ulpWord[3]);
2530 if (irsp->ulpBdeCount == 2) {
2531 saveq->context3 = lpfc_sli_get_buff(phba, pring,
2532 irsp->unsli3.sli3Words[7]);
2533 if (!saveq->context3)
2534 lpfc_printf_log(phba,
2537 "0342 Ring %d Cannot find buffer for an"
2538 " unsolicited iocb. tag 0x%x\n",
2540 irsp->unsli3.sli3Words[7]);
2542 list_for_each_entry(iocbq, &saveq->list, list) {
2543 irsp = &(iocbq->iocb);
2544 if (irsp->ulpBdeCount != 0) {
2545 iocbq->context2 = lpfc_sli_get_buff(phba, pring,
2546 irsp->un.ulpWord[3]);
2547 if (!iocbq->context2)
2548 lpfc_printf_log(phba,
2551 "0343 Ring %d Cannot find "
2552 "buffer for an unsolicited iocb"
2553 ". tag 0x%x\n", pring->ringno,
2554 irsp->un.ulpWord[3]);
2556 if (irsp->ulpBdeCount == 2) {
2557 iocbq->context3 = lpfc_sli_get_buff(phba, pring,
2558 irsp->unsli3.sli3Words[7]);
2559 if (!iocbq->context3)
2560 lpfc_printf_log(phba,
2563 "0344 Ring %d Cannot find "
2564 "buffer for an unsolicited "
2567 irsp->unsli3.sli3Words[7]);
2571 if (irsp->ulpBdeCount != 0 &&
2572 (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
2573 irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
2576 /* search continue save q for same XRI */
2577 list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
2578 if (iocbq->iocb.unsli3.rcvsli3.ox_id ==
2579 saveq->iocb.unsli3.rcvsli3.ox_id) {
2580 list_add_tail(&saveq->list, &iocbq->list);
2586 list_add_tail(&saveq->clist,
2587 &pring->iocb_continue_saveq);
2588 if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
2589 list_del_init(&iocbq->clist);
2591 irsp = &(saveq->iocb);
2595 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
2596 (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
2597 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
2598 Rctl = FC_RCTL_ELS_REQ;
2601 w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
2602 Rctl = w5p->hcsw.Rctl;
2603 Type = w5p->hcsw.Type;
2605 /* Firmware Workaround */
2606 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
2607 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
2608 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
2609 Rctl = FC_RCTL_ELS_REQ;
2611 w5p->hcsw.Rctl = Rctl;
2612 w5p->hcsw.Type = Type;
2616 if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
2617 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2618 "0313 Ring %d handler: unexpected Rctl x%x "
2619 "Type x%x received\n",
2620 pring->ringno, Rctl, Type);
2626 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
2627 * @phba: Pointer to HBA context object.
2628 * @pring: Pointer to driver SLI ring object.
2629 * @prspiocb: Pointer to response iocb object.
2631 * This function looks up the iocb_lookup table to get the command iocb
2632 * corresponding to the given response iocb using the iotag of the
2633 * response iocb. This function is called with the hbalock held.
2634 * This function returns the command iocb object if it finds the command
2635 * iocb else returns NULL.
2637 static struct lpfc_iocbq *
2638 lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
2639 struct lpfc_sli_ring *pring,
2640 struct lpfc_iocbq *prspiocb)
2642 struct lpfc_iocbq *cmd_iocb = NULL;
2645 iotag = prspiocb->iocb.ulpIoTag;
2647 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2648 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2649 list_del_init(&cmd_iocb->list);
2650 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
2651 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
2656 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2657 "0317 iotag x%x is out off "
2658 "range: max iotag x%x wd0 x%x\n",
2659 iotag, phba->sli.last_iotag,
2660 *(((uint32_t *) &prspiocb->iocb) + 7));
2665 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2666 * @phba: Pointer to HBA context object.
2667 * @pring: Pointer to driver SLI ring object.
2670 * This function looks up the iocb_lookup table to get the command iocb
2671 * corresponding to the given iotag. This function is called with the
2673 * This function returns the command iocb object if it finds the command
2674 * iocb else returns NULL.
2676 static struct lpfc_iocbq *
2677 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
2678 struct lpfc_sli_ring *pring, uint16_t iotag)
2680 struct lpfc_iocbq *cmd_iocb;
2682 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2683 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2684 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
2685 /* remove from txcmpl queue list */
2686 list_del_init(&cmd_iocb->list);
2687 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
2691 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2692 "0372 iotag x%x is out off range: max iotag (x%x)\n",
2693 iotag, phba->sli.last_iotag);
2698 * lpfc_sli_process_sol_iocb - process solicited iocb completion
2699 * @phba: Pointer to HBA context object.
2700 * @pring: Pointer to driver SLI ring object.
2701 * @saveq: Pointer to the response iocb to be processed.
2703 * This function is called by the ring event handler for non-fcp
2704 * rings when there is a new response iocb in the response ring.
2705 * The caller is not required to hold any locks. This function
2706 * gets the command iocb associated with the response iocb and
2707 * calls the completion handler for the command iocb. If there
2708 * is no completion handler, the function will free the resources
2709 * associated with command iocb. If the response iocb is for
2710 * an already aborted command iocb, the status of the completion
2711 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
2712 * This function always returns 1.
2715 lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2716 struct lpfc_iocbq *saveq)
2718 struct lpfc_iocbq *cmdiocbp;
2720 unsigned long iflag;
2722 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
2723 spin_lock_irqsave(&phba->hbalock, iflag);
2724 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
2725 spin_unlock_irqrestore(&phba->hbalock, iflag);
2728 if (cmdiocbp->iocb_cmpl) {
2730 * If an ELS command failed send an event to mgmt
2733 if (saveq->iocb.ulpStatus &&
2734 (pring->ringno == LPFC_ELS_RING) &&
2735 (cmdiocbp->iocb.ulpCommand ==
2736 CMD_ELS_REQUEST64_CR))
2737 lpfc_send_els_failure_event(phba,
2741 * Post all ELS completions to the worker thread.
2742 * All other are passed to the completion callback.
2744 if (pring->ringno == LPFC_ELS_RING) {
2745 if ((phba->sli_rev < LPFC_SLI_REV4) &&
2746 (cmdiocbp->iocb_flag &
2747 LPFC_DRIVER_ABORTED)) {
2748 spin_lock_irqsave(&phba->hbalock,
2750 cmdiocbp->iocb_flag &=
2751 ~LPFC_DRIVER_ABORTED;
2752 spin_unlock_irqrestore(&phba->hbalock,
2754 saveq->iocb.ulpStatus =
2755 IOSTAT_LOCAL_REJECT;
2756 saveq->iocb.un.ulpWord[4] =
2759 /* Firmware could still be in progress
2760 * of DMAing payload, so don't free data
2761 * buffer till after a hbeat.
2763 spin_lock_irqsave(&phba->hbalock,
2765 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
2766 spin_unlock_irqrestore(&phba->hbalock,
2769 if (phba->sli_rev == LPFC_SLI_REV4) {
2770 if (saveq->iocb_flag &
2771 LPFC_EXCHANGE_BUSY) {
2772 /* Set cmdiocb flag for the
2773 * exchange busy so sgl (xri)
2774 * will not be released until
2775 * the abort xri is received
2779 &phba->hbalock, iflag);
2780 cmdiocbp->iocb_flag |=
2782 spin_unlock_irqrestore(
2783 &phba->hbalock, iflag);
2785 if (cmdiocbp->iocb_flag &
2786 LPFC_DRIVER_ABORTED) {
2788 * Clear LPFC_DRIVER_ABORTED
2789 * bit in case it was driver
2793 &phba->hbalock, iflag);
2794 cmdiocbp->iocb_flag &=
2795 ~LPFC_DRIVER_ABORTED;
2796 spin_unlock_irqrestore(
2797 &phba->hbalock, iflag);
2798 cmdiocbp->iocb.ulpStatus =
2799 IOSTAT_LOCAL_REJECT;
2800 cmdiocbp->iocb.un.ulpWord[4] =
2801 IOERR_ABORT_REQUESTED;
2803 * For SLI4, irsiocb contains
2804 * NO_XRI in sli_xritag, it
2805 * shall not affect releasing
2806 * sgl (xri) process.
2808 saveq->iocb.ulpStatus =
2809 IOSTAT_LOCAL_REJECT;
2810 saveq->iocb.un.ulpWord[4] =
2813 &phba->hbalock, iflag);
2815 LPFC_DELAY_MEM_FREE;
2816 spin_unlock_irqrestore(
2817 &phba->hbalock, iflag);
2821 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
2823 lpfc_sli_release_iocbq(phba, cmdiocbp);
2826 * Unknown initiating command based on the response iotag.
2827 * This could be the case on the ELS ring because of
2830 if (pring->ringno != LPFC_ELS_RING) {
2832 * Ring <ringno> handler: unexpected completion IoTag
2835 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2836 "0322 Ring %d handler: "
2837 "unexpected completion IoTag x%x "
2838 "Data: x%x x%x x%x x%x\n",
2840 saveq->iocb.ulpIoTag,
2841 saveq->iocb.ulpStatus,
2842 saveq->iocb.un.ulpWord[4],
2843 saveq->iocb.ulpCommand,
2844 saveq->iocb.ulpContext);
2852 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
2853 * @phba: Pointer to HBA context object.
2854 * @pring: Pointer to driver SLI ring object.
2856 * This function is called from the iocb ring event handlers when
2857 * put pointer is ahead of the get pointer for a ring. This function signal
2858 * an error attention condition to the worker thread and the worker
2859 * thread will transition the HBA to offline state.
2862 lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
2864 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2866 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
2867 * rsp ring <portRspMax>
2869 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2870 "0312 Ring %d handler: portRspPut %d "
2871 "is bigger than rsp ring %d\n",
2872 pring->ringno, le32_to_cpu(pgp->rspPutInx),
2873 pring->sli.sli3.numRiocb);
2875 phba->link_state = LPFC_HBA_ERROR;
2878 * All error attention handlers are posted to
2881 phba->work_ha |= HA_ERATT;
2882 phba->work_hs = HS_FFER3;
2884 lpfc_worker_wake_up(phba);
2890 * lpfc_poll_eratt - Error attention polling timer timeout handler
2891 * @ptr: Pointer to address of HBA context object.
2893 * This function is invoked by the Error Attention polling timer when the
2894 * timer times out. It will check the SLI Error Attention register for
2895 * possible attention events. If so, it will post an Error Attention event
2896 * and wake up worker thread to process it. Otherwise, it will set up the
2897 * Error Attention polling timer for the next poll.
2899 void lpfc_poll_eratt(unsigned long ptr)
2901 struct lpfc_hba *phba;
2902 uint32_t eratt = 0, rem;
2903 uint64_t sli_intr, cnt;
2905 phba = (struct lpfc_hba *)ptr;
2907 /* Here we will also keep track of interrupts per sec of the hba */
2908 sli_intr = phba->sli.slistat.sli_intr;
2910 if (phba->sli.slistat.sli_prev_intr > sli_intr)
2911 cnt = (((uint64_t)(-1) - phba->sli.slistat.sli_prev_intr) +
2914 cnt = (sli_intr - phba->sli.slistat.sli_prev_intr);
2916 /* 64-bit integer division not supporte on 32-bit x86 - use do_div */
2917 rem = do_div(cnt, LPFC_ERATT_POLL_INTERVAL);
2918 phba->sli.slistat.sli_ips = cnt;
2920 phba->sli.slistat.sli_prev_intr = sli_intr;
2922 /* Check chip HA register for error event */
2923 eratt = lpfc_sli_check_eratt(phba);
2926 /* Tell the worker thread there is work to do */
2927 lpfc_worker_wake_up(phba);
2929 /* Restart the timer for next eratt poll */
2930 mod_timer(&phba->eratt_poll,
2932 msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
2938 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
2939 * @phba: Pointer to HBA context object.
2940 * @pring: Pointer to driver SLI ring object.
2941 * @mask: Host attention register mask for this ring.
2943 * This function is called from the interrupt context when there is a ring
2944 * event for the fcp ring. The caller does not hold any lock.
2945 * The function processes each response iocb in the response ring until it
2946 * finds an iocb with LE bit set and chains all the iocbs up to the iocb with
2947 * LE bit set. The function will call the completion handler of the command iocb
2948 * if the response iocb indicates a completion for a command iocb or it is
2949 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
2950 * function if this is an unsolicited iocb.
2951 * This routine presumes LPFC_FCP_RING handling and doesn't bother
2952 * to check it explicitly.
2955 lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
2956 struct lpfc_sli_ring *pring, uint32_t mask)
2958 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2959 IOCB_t *irsp = NULL;
2960 IOCB_t *entry = NULL;
2961 struct lpfc_iocbq *cmdiocbq = NULL;
2962 struct lpfc_iocbq rspiocbq;
2964 uint32_t portRspPut, portRspMax;
2966 lpfc_iocb_type type;
2967 unsigned long iflag;
2968 uint32_t rsp_cmpl = 0;
2970 spin_lock_irqsave(&phba->hbalock, iflag);
2971 pring->stats.iocb_event++;
2974 * The next available response entry should never exceed the maximum
2975 * entries. If it does, treat it as an adapter hardware error.
2977 portRspMax = pring->sli.sli3.numRiocb;
2978 portRspPut = le32_to_cpu(pgp->rspPutInx);
2979 if (unlikely(portRspPut >= portRspMax)) {
2980 lpfc_sli_rsp_pointers_error(phba, pring);
2981 spin_unlock_irqrestore(&phba->hbalock, iflag);
2984 if (phba->fcp_ring_in_use) {
2985 spin_unlock_irqrestore(&phba->hbalock, iflag);
2988 phba->fcp_ring_in_use = 1;
2991 while (pring->sli.sli3.rspidx != portRspPut) {
2993 * Fetch an entry off the ring and copy it into a local data
2994 * structure. The copy involves a byte-swap since the
2995 * network byte order and pci byte orders are different.
2997 entry = lpfc_resp_iocb(phba, pring);
2998 phba->last_completion_time = jiffies;
3000 if (++pring->sli.sli3.rspidx >= portRspMax)
3001 pring->sli.sli3.rspidx = 0;
3003 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
3004 (uint32_t *) &rspiocbq.iocb,
3005 phba->iocb_rsp_size);
3006 INIT_LIST_HEAD(&(rspiocbq.list));
3007 irsp = &rspiocbq.iocb;
3009 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
3010 pring->stats.iocb_rsp++;
3013 if (unlikely(irsp->ulpStatus)) {
3015 * If resource errors reported from HBA, reduce
3016 * queuedepths of the SCSI device.
3018 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3019 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3020 IOERR_NO_RESOURCES)) {
3021 spin_unlock_irqrestore(&phba->hbalock, iflag);
3022 phba->lpfc_rampdown_queue_depth(phba);
3023 spin_lock_irqsave(&phba->hbalock, iflag);
3026 /* Rsp ring <ringno> error: IOCB */
3027 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3028 "0336 Rsp Ring %d error: IOCB Data: "
3029 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
3031 irsp->un.ulpWord[0],
3032 irsp->un.ulpWord[1],
3033 irsp->un.ulpWord[2],
3034 irsp->un.ulpWord[3],
3035 irsp->un.ulpWord[4],
3036 irsp->un.ulpWord[5],
3037 *(uint32_t *)&irsp->un1,
3038 *((uint32_t *)&irsp->un1 + 1));
3042 case LPFC_ABORT_IOCB:
3045 * Idle exchange closed via ABTS from port. No iocb
3046 * resources need to be recovered.
3048 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
3049 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3050 "0333 IOCB cmd 0x%x"
3051 " processed. Skipping"
3057 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
3059 if (unlikely(!cmdiocbq))
3061 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED)
3062 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
3063 if (cmdiocbq->iocb_cmpl) {
3064 spin_unlock_irqrestore(&phba->hbalock, iflag);
3065 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
3067 spin_lock_irqsave(&phba->hbalock, iflag);
3070 case LPFC_UNSOL_IOCB:
3071 spin_unlock_irqrestore(&phba->hbalock, iflag);
3072 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
3073 spin_lock_irqsave(&phba->hbalock, iflag);
3076 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3077 char adaptermsg[LPFC_MAX_ADPTMSG];
3078 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3079 memcpy(&adaptermsg[0], (uint8_t *) irsp,
3081 dev_warn(&((phba->pcidev)->dev),
3083 phba->brd_no, adaptermsg);
3085 /* Unknown IOCB command */
3086 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3087 "0334 Unknown IOCB command "
3088 "Data: x%x, x%x x%x x%x x%x\n",
3089 type, irsp->ulpCommand,
3098 * The response IOCB has been processed. Update the ring
3099 * pointer in SLIM. If the port response put pointer has not
3100 * been updated, sync the pgp->rspPutInx and fetch the new port
3101 * response put pointer.
3103 writel(pring->sli.sli3.rspidx,
3104 &phba->host_gp[pring->ringno].rspGetInx);
3106 if (pring->sli.sli3.rspidx == portRspPut)
3107 portRspPut = le32_to_cpu(pgp->rspPutInx);
3110 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
3111 pring->stats.iocb_rsp_full++;
3112 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3113 writel(status, phba->CAregaddr);
3114 readl(phba->CAregaddr);
3116 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3117 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3118 pring->stats.iocb_cmd_empty++;
3120 /* Force update of the local copy of cmdGetInx */
3121 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3122 lpfc_sli_resume_iocb(phba, pring);
3124 if ((pring->lpfc_sli_cmd_available))
3125 (pring->lpfc_sli_cmd_available) (phba, pring);
3129 phba->fcp_ring_in_use = 0;
3130 spin_unlock_irqrestore(&phba->hbalock, iflag);
3135 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
3136 * @phba: Pointer to HBA context object.
3137 * @pring: Pointer to driver SLI ring object.
3138 * @rspiocbp: Pointer to driver response IOCB object.
3140 * This function is called from the worker thread when there is a slow-path
3141 * response IOCB to process. This function chains all the response iocbs until
3142 * seeing the iocb with the LE bit set. The function will call
3143 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
3144 * completion of a command iocb. The function will call the
3145 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
3146 * The function frees the resources or calls the completion handler if this
3147 * iocb is an abort completion. The function returns NULL when the response
3148 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
3149 * this function shall chain the iocb on to the iocb_continueq and return the
3150 * response iocb passed in.
3152 static struct lpfc_iocbq *
3153 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3154 struct lpfc_iocbq *rspiocbp)
3156 struct lpfc_iocbq *saveq;
3157 struct lpfc_iocbq *cmdiocbp;
3158 struct lpfc_iocbq *next_iocb;
3159 IOCB_t *irsp = NULL;
3160 uint32_t free_saveq;
3161 uint8_t iocb_cmd_type;
3162 lpfc_iocb_type type;
3163 unsigned long iflag;
3166 spin_lock_irqsave(&phba->hbalock, iflag);
3167 /* First add the response iocb to the countinueq list */
3168 list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
3169 pring->iocb_continueq_cnt++;
3171 /* Now, determine whether the list is completed for processing */
3172 irsp = &rspiocbp->iocb;
3175 * By default, the driver expects to free all resources
3176 * associated with this iocb completion.
3179 saveq = list_get_first(&pring->iocb_continueq,
3180 struct lpfc_iocbq, list);
3181 irsp = &(saveq->iocb);
3182 list_del_init(&pring->iocb_continueq);
3183 pring->iocb_continueq_cnt = 0;
3185 pring->stats.iocb_rsp++;
3188 * If resource errors reported from HBA, reduce
3189 * queuedepths of the SCSI device.
3191 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3192 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3193 IOERR_NO_RESOURCES)) {
3194 spin_unlock_irqrestore(&phba->hbalock, iflag);
3195 phba->lpfc_rampdown_queue_depth(phba);
3196 spin_lock_irqsave(&phba->hbalock, iflag);
3199 if (irsp->ulpStatus) {
3200 /* Rsp ring <ringno> error: IOCB */
3201 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3202 "0328 Rsp Ring %d error: "
3207 "x%x x%x x%x x%x\n",
3209 irsp->un.ulpWord[0],
3210 irsp->un.ulpWord[1],
3211 irsp->un.ulpWord[2],
3212 irsp->un.ulpWord[3],
3213 irsp->un.ulpWord[4],
3214 irsp->un.ulpWord[5],
3215 *(((uint32_t *) irsp) + 6),
3216 *(((uint32_t *) irsp) + 7),
3217 *(((uint32_t *) irsp) + 8),
3218 *(((uint32_t *) irsp) + 9),
3219 *(((uint32_t *) irsp) + 10),
3220 *(((uint32_t *) irsp) + 11),
3221 *(((uint32_t *) irsp) + 12),
3222 *(((uint32_t *) irsp) + 13),
3223 *(((uint32_t *) irsp) + 14),
3224 *(((uint32_t *) irsp) + 15));
3228 * Fetch the IOCB command type and call the correct completion
3229 * routine. Solicited and Unsolicited IOCBs on the ELS ring
3230 * get freed back to the lpfc_iocb_list by the discovery
3233 iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
3234 type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
3237 spin_unlock_irqrestore(&phba->hbalock, iflag);
3238 rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
3239 spin_lock_irqsave(&phba->hbalock, iflag);
3242 case LPFC_UNSOL_IOCB:
3243 spin_unlock_irqrestore(&phba->hbalock, iflag);
3244 rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
3245 spin_lock_irqsave(&phba->hbalock, iflag);
3250 case LPFC_ABORT_IOCB:
3252 if (irsp->ulpCommand != CMD_XRI_ABORTED_CX)
3253 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
3256 /* Call the specified completion routine */
3257 if (cmdiocbp->iocb_cmpl) {
3258 spin_unlock_irqrestore(&phba->hbalock,
3260 (cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
3262 spin_lock_irqsave(&phba->hbalock,
3265 __lpfc_sli_release_iocbq(phba,
3270 case LPFC_UNKNOWN_IOCB:
3271 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3272 char adaptermsg[LPFC_MAX_ADPTMSG];
3273 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3274 memcpy(&adaptermsg[0], (uint8_t *)irsp,
3276 dev_warn(&((phba->pcidev)->dev),
3278 phba->brd_no, adaptermsg);
3280 /* Unknown IOCB command */
3281 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3282 "0335 Unknown IOCB "
3283 "command Data: x%x "
3294 list_for_each_entry_safe(rspiocbp, next_iocb,
3295 &saveq->list, list) {
3296 list_del_init(&rspiocbp->list);
3297 __lpfc_sli_release_iocbq(phba, rspiocbp);
3299 __lpfc_sli_release_iocbq(phba, saveq);
3303 spin_unlock_irqrestore(&phba->hbalock, iflag);
3308 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
3309 * @phba: Pointer to HBA context object.
3310 * @pring: Pointer to driver SLI ring object.
3311 * @mask: Host attention register mask for this ring.
3313 * This routine wraps the actual slow_ring event process routine from the
3314 * API jump table function pointer from the lpfc_hba struct.
3317 lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
3318 struct lpfc_sli_ring *pring, uint32_t mask)
3320 phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
3324 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
3325 * @phba: Pointer to HBA context object.
3326 * @pring: Pointer to driver SLI ring object.
3327 * @mask: Host attention register mask for this ring.
3329 * This function is called from the worker thread when there is a ring event
3330 * for non-fcp rings. The caller does not hold any lock. The function will
3331 * remove each response iocb in the response ring and calls the handle
3332 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3335 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
3336 struct lpfc_sli_ring *pring, uint32_t mask)
3338 struct lpfc_pgp *pgp;
3340 IOCB_t *irsp = NULL;
3341 struct lpfc_iocbq *rspiocbp = NULL;
3342 uint32_t portRspPut, portRspMax;
3343 unsigned long iflag;
3346 pgp = &phba->port_gp[pring->ringno];
3347 spin_lock_irqsave(&phba->hbalock, iflag);
3348 pring->stats.iocb_event++;
3351 * The next available response entry should never exceed the maximum
3352 * entries. If it does, treat it as an adapter hardware error.
3354 portRspMax = pring->sli.sli3.numRiocb;
3355 portRspPut = le32_to_cpu(pgp->rspPutInx);
3356 if (portRspPut >= portRspMax) {
3358 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
3359 * rsp ring <portRspMax>
3361 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3362 "0303 Ring %d handler: portRspPut %d "
3363 "is bigger than rsp ring %d\n",
3364 pring->ringno, portRspPut, portRspMax);
3366 phba->link_state = LPFC_HBA_ERROR;
3367 spin_unlock_irqrestore(&phba->hbalock, iflag);
3369 phba->work_hs = HS_FFER3;
3370 lpfc_handle_eratt(phba);
3376 while (pring->sli.sli3.rspidx != portRspPut) {
3378 * Build a completion list and call the appropriate handler.
3379 * The process is to get the next available response iocb, get
3380 * a free iocb from the list, copy the response data into the
3381 * free iocb, insert to the continuation list, and update the
3382 * next response index to slim. This process makes response
3383 * iocb's in the ring available to DMA as fast as possible but
3384 * pays a penalty for a copy operation. Since the iocb is
3385 * only 32 bytes, this penalty is considered small relative to
3386 * the PCI reads for register values and a slim write. When
3387 * the ulpLe field is set, the entire Command has been
3390 entry = lpfc_resp_iocb(phba, pring);
3392 phba->last_completion_time = jiffies;
3393 rspiocbp = __lpfc_sli_get_iocbq(phba);
3394 if (rspiocbp == NULL) {
3395 printk(KERN_ERR "%s: out of buffers! Failing "
3396 "completion.\n", __func__);
3400 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
3401 phba->iocb_rsp_size);
3402 irsp = &rspiocbp->iocb;
3404 if (++pring->sli.sli3.rspidx >= portRspMax)
3405 pring->sli.sli3.rspidx = 0;
3407 if (pring->ringno == LPFC_ELS_RING) {
3408 lpfc_debugfs_slow_ring_trc(phba,
3409 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
3410 *(((uint32_t *) irsp) + 4),
3411 *(((uint32_t *) irsp) + 6),
3412 *(((uint32_t *) irsp) + 7));
3415 writel(pring->sli.sli3.rspidx,
3416 &phba->host_gp[pring->ringno].rspGetInx);
3418 spin_unlock_irqrestore(&phba->hbalock, iflag);
3419 /* Handle the response IOCB */
3420 rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
3421 spin_lock_irqsave(&phba->hbalock, iflag);
3424 * If the port response put pointer has not been updated, sync
3425 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
3426 * response put pointer.
3428 if (pring->sli.sli3.rspidx == portRspPut) {
3429 portRspPut = le32_to_cpu(pgp->rspPutInx);
3431 } /* while (pring->sli.sli3.rspidx != portRspPut) */
3433 if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
3434 /* At least one response entry has been freed */
3435 pring->stats.iocb_rsp_full++;
3436 /* SET RxRE_RSP in Chip Att register */
3437 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3438 writel(status, phba->CAregaddr);
3439 readl(phba->CAregaddr); /* flush */
3441 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3442 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3443 pring->stats.iocb_cmd_empty++;
3445 /* Force update of the local copy of cmdGetInx */
3446 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3447 lpfc_sli_resume_iocb(phba, pring);
3449 if ((pring->lpfc_sli_cmd_available))
3450 (pring->lpfc_sli_cmd_available) (phba, pring);
3454 spin_unlock_irqrestore(&phba->hbalock, iflag);
3459 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
3460 * @phba: Pointer to HBA context object.
3461 * @pring: Pointer to driver SLI ring object.
3462 * @mask: Host attention register mask for this ring.
3464 * This function is called from the worker thread when there is a pending
3465 * ELS response iocb on the driver internal slow-path response iocb worker
3466 * queue. The caller does not hold any lock. The function will remove each
3467 * response iocb from the response worker queue and calls the handle
3468 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3471 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
3472 struct lpfc_sli_ring *pring, uint32_t mask)
3474 struct lpfc_iocbq *irspiocbq;
3475 struct hbq_dmabuf *dmabuf;
3476 struct lpfc_cq_event *cq_event;
3477 unsigned long iflag;
3479 spin_lock_irqsave(&phba->hbalock, iflag);
3480 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
3481 spin_unlock_irqrestore(&phba->hbalock, iflag);
3482 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
3483 /* Get the response iocb from the head of work queue */
3484 spin_lock_irqsave(&phba->hbalock, iflag);
3485 list_remove_head(&phba->sli4_hba.sp_queue_event,
3486 cq_event, struct lpfc_cq_event, list);
3487 spin_unlock_irqrestore(&phba->hbalock, iflag);
3489 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
3490 case CQE_CODE_COMPL_WQE:
3491 irspiocbq = container_of(cq_event, struct lpfc_iocbq,
3493 /* Translate ELS WCQE to response IOCBQ */
3494 irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba,
3497 lpfc_sli_sp_handle_rspiocb(phba, pring,
3500 case CQE_CODE_RECEIVE:
3501 case CQE_CODE_RECEIVE_V1:
3502 dmabuf = container_of(cq_event, struct hbq_dmabuf,
3504 lpfc_sli4_handle_received_buffer(phba, dmabuf);
3513 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
3514 * @phba: Pointer to HBA context object.
3515 * @pring: Pointer to driver SLI ring object.
3517 * This function aborts all iocbs in the given ring and frees all the iocb
3518 * objects in txq. This function issues an abort iocb for all the iocb commands
3519 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3520 * the return of this function. The caller is not required to hold any locks.
3523 lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3525 LIST_HEAD(completions);
3526 struct lpfc_iocbq *iocb, *next_iocb;
3528 if (pring->ringno == LPFC_ELS_RING) {
3529 lpfc_fabric_abort_hba(phba);
3532 /* Error everything on txq and txcmplq
3535 if (phba->sli_rev >= LPFC_SLI_REV4) {
3536 spin_lock_irq(&pring->ring_lock);
3537 list_splice_init(&pring->txq, &completions);
3539 spin_unlock_irq(&pring->ring_lock);
3541 spin_lock_irq(&phba->hbalock);
3542 /* Next issue ABTS for everything on the txcmplq */
3543 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3544 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3545 spin_unlock_irq(&phba->hbalock);
3547 spin_lock_irq(&phba->hbalock);
3548 list_splice_init(&pring->txq, &completions);
3551 /* Next issue ABTS for everything on the txcmplq */
3552 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3553 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3554 spin_unlock_irq(&phba->hbalock);
3557 /* Cancel all the IOCBs from the completions list */
3558 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3563 * lpfc_sli_abort_fcp_rings - Abort all iocbs in all FCP rings
3564 * @phba: Pointer to HBA context object.
3565 * @pring: Pointer to driver SLI ring object.
3567 * This function aborts all iocbs in FCP rings and frees all the iocb
3568 * objects in txq. This function issues an abort iocb for all the iocb commands
3569 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3570 * the return of this function. The caller is not required to hold any locks.
3573 lpfc_sli_abort_fcp_rings(struct lpfc_hba *phba)
3575 struct lpfc_sli *psli = &phba->sli;
3576 struct lpfc_sli_ring *pring;
3579 /* Look on all the FCP Rings for the iotag */
3580 if (phba->sli_rev >= LPFC_SLI_REV4) {
3581 for (i = 0; i < phba->cfg_fcp_io_channel; i++) {
3582 pring = &psli->ring[i + MAX_SLI3_CONFIGURED_RINGS];
3583 lpfc_sli_abort_iocb_ring(phba, pring);
3586 pring = &psli->ring[psli->fcp_ring];
3587 lpfc_sli_abort_iocb_ring(phba, pring);
3593 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
3594 * @phba: Pointer to HBA context object.
3596 * This function flushes all iocbs in the fcp ring and frees all the iocb
3597 * objects in txq and txcmplq. This function will not issue abort iocbs
3598 * for all the iocb commands in txcmplq, they will just be returned with
3599 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3600 * slot has been permanently disabled.
3603 lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba)
3607 struct lpfc_sli *psli = &phba->sli;
3608 struct lpfc_sli_ring *pring;
3611 spin_lock_irq(&phba->hbalock);
3612 /* Indicate the I/O queues are flushed */
3613 phba->hba_flag |= HBA_FCP_IOQ_FLUSH;
3614 spin_unlock_irq(&phba->hbalock);
3616 /* Look on all the FCP Rings for the iotag */
3617 if (phba->sli_rev >= LPFC_SLI_REV4) {
3618 for (i = 0; i < phba->cfg_fcp_io_channel; i++) {
3619 pring = &psli->ring[i + MAX_SLI3_CONFIGURED_RINGS];
3621 spin_lock_irq(&pring->ring_lock);
3622 /* Retrieve everything on txq */
3623 list_splice_init(&pring->txq, &txq);
3624 /* Retrieve everything on the txcmplq */
3625 list_splice_init(&pring->txcmplq, &txcmplq);
3627 pring->txcmplq_cnt = 0;
3628 spin_unlock_irq(&pring->ring_lock);
3631 lpfc_sli_cancel_iocbs(phba, &txq,
3632 IOSTAT_LOCAL_REJECT,
3634 /* Flush the txcmpq */
3635 lpfc_sli_cancel_iocbs(phba, &txcmplq,
3636 IOSTAT_LOCAL_REJECT,
3640 pring = &psli->ring[psli->fcp_ring];
3642 spin_lock_irq(&phba->hbalock);
3643 /* Retrieve everything on txq */
3644 list_splice_init(&pring->txq, &txq);
3645 /* Retrieve everything on the txcmplq */
3646 list_splice_init(&pring->txcmplq, &txcmplq);
3648 pring->txcmplq_cnt = 0;
3649 spin_unlock_irq(&phba->hbalock);
3652 lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
3654 /* Flush the txcmpq */
3655 lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
3661 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
3662 * @phba: Pointer to HBA context object.
3663 * @mask: Bit mask to be checked.
3665 * This function reads the host status register and compares
3666 * with the provided bit mask to check if HBA completed
3667 * the restart. This function will wait in a loop for the
3668 * HBA to complete restart. If the HBA does not restart within
3669 * 15 iterations, the function will reset the HBA again. The
3670 * function returns 1 when HBA fail to restart otherwise returns
3674 lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
3680 /* Read the HBA Host Status Register */
3681 if (lpfc_readl(phba->HSregaddr, &status))
3685 * Check status register every 100ms for 5 retries, then every
3686 * 500ms for 5, then every 2.5 sec for 5, then reset board and
3687 * every 2.5 sec for 4.
3688 * Break our of the loop if errors occurred during init.
3690 while (((status & mask) != mask) &&
3691 !(status & HS_FFERM) &&
3703 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3704 lpfc_sli_brdrestart(phba);
3706 /* Read the HBA Host Status Register */
3707 if (lpfc_readl(phba->HSregaddr, &status)) {
3713 /* Check to see if any errors occurred during init */
3714 if ((status & HS_FFERM) || (i >= 20)) {
3715 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3716 "2751 Adapter failed to restart, "
3717 "status reg x%x, FW Data: A8 x%x AC x%x\n",
3719 readl(phba->MBslimaddr + 0xa8),
3720 readl(phba->MBslimaddr + 0xac));
3721 phba->link_state = LPFC_HBA_ERROR;
3729 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3730 * @phba: Pointer to HBA context object.
3731 * @mask: Bit mask to be checked.
3733 * This function checks the host status register to check if HBA is
3734 * ready. This function will wait in a loop for the HBA to be ready
3735 * If the HBA is not ready , the function will will reset the HBA PCI
3736 * function again. The function returns 1 when HBA fail to be ready
3737 * otherwise returns zero.
3740 lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
3745 /* Read the HBA Host Status Register */
3746 status = lpfc_sli4_post_status_check(phba);
3749 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3750 lpfc_sli_brdrestart(phba);
3751 status = lpfc_sli4_post_status_check(phba);
3754 /* Check to see if any errors occurred during init */
3756 phba->link_state = LPFC_HBA_ERROR;
3759 phba->sli4_hba.intr_enable = 0;
3765 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3766 * @phba: Pointer to HBA context object.
3767 * @mask: Bit mask to be checked.
3769 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3770 * from the API jump table function pointer from the lpfc_hba struct.
3773 lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
3775 return phba->lpfc_sli_brdready(phba, mask);
3778 #define BARRIER_TEST_PATTERN (0xdeadbeef)
3781 * lpfc_reset_barrier - Make HBA ready for HBA reset
3782 * @phba: Pointer to HBA context object.
3784 * This function is called before resetting an HBA. This function is called
3785 * with hbalock held and requests HBA to quiesce DMAs before a reset.
3787 void lpfc_reset_barrier(struct lpfc_hba *phba)
3789 uint32_t __iomem *resp_buf;
3790 uint32_t __iomem *mbox_buf;
3791 volatile uint32_t mbox;
3792 uint32_t hc_copy, ha_copy, resp_data;
3796 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
3797 if (hdrtype != 0x80 ||
3798 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
3799 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
3803 * Tell the other part of the chip to suspend temporarily all
3806 resp_buf = phba->MBslimaddr;
3808 /* Disable the error attention */
3809 if (lpfc_readl(phba->HCregaddr, &hc_copy))
3811 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
3812 readl(phba->HCregaddr); /* flush */
3813 phba->link_flag |= LS_IGNORE_ERATT;
3815 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3817 if (ha_copy & HA_ERATT) {
3818 /* Clear Chip error bit */
3819 writel(HA_ERATT, phba->HAregaddr);
3820 phba->pport->stopped = 1;
3824 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
3825 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
3827 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
3828 mbox_buf = phba->MBslimaddr;
3829 writel(mbox, mbox_buf);
3831 for (i = 0; i < 50; i++) {
3832 if (lpfc_readl((resp_buf + 1), &resp_data))
3834 if (resp_data != ~(BARRIER_TEST_PATTERN))
3840 if (lpfc_readl((resp_buf + 1), &resp_data))
3842 if (resp_data != ~(BARRIER_TEST_PATTERN)) {
3843 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
3844 phba->pport->stopped)
3850 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
3852 for (i = 0; i < 500; i++) {
3853 if (lpfc_readl(resp_buf, &resp_data))
3855 if (resp_data != mbox)
3864 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3866 if (!(ha_copy & HA_ERATT))
3872 if (readl(phba->HAregaddr) & HA_ERATT) {
3873 writel(HA_ERATT, phba->HAregaddr);
3874 phba->pport->stopped = 1;
3878 phba->link_flag &= ~LS_IGNORE_ERATT;
3879 writel(hc_copy, phba->HCregaddr);
3880 readl(phba->HCregaddr); /* flush */
3884 * lpfc_sli_brdkill - Issue a kill_board mailbox command
3885 * @phba: Pointer to HBA context object.
3887 * This function issues a kill_board mailbox command and waits for
3888 * the error attention interrupt. This function is called for stopping
3889 * the firmware processing. The caller is not required to hold any
3890 * locks. This function calls lpfc_hba_down_post function to free
3891 * any pending commands after the kill. The function will return 1 when it
3892 * fails to kill the board else will return 0.
3895 lpfc_sli_brdkill(struct lpfc_hba *phba)
3897 struct lpfc_sli *psli;
3907 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3908 "0329 Kill HBA Data: x%x x%x\n",
3909 phba->pport->port_state, psli->sli_flag);
3911 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3915 /* Disable the error attention */
3916 spin_lock_irq(&phba->hbalock);
3917 if (lpfc_readl(phba->HCregaddr, &status)) {
3918 spin_unlock_irq(&phba->hbalock);
3919 mempool_free(pmb, phba->mbox_mem_pool);
3922 status &= ~HC_ERINT_ENA;
3923 writel(status, phba->HCregaddr);
3924 readl(phba->HCregaddr); /* flush */
3925 phba->link_flag |= LS_IGNORE_ERATT;
3926 spin_unlock_irq(&phba->hbalock);
3928 lpfc_kill_board(phba, pmb);
3929 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3930 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3932 if (retval != MBX_SUCCESS) {
3933 if (retval != MBX_BUSY)
3934 mempool_free(pmb, phba->mbox_mem_pool);
3935 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3936 "2752 KILL_BOARD command failed retval %d\n",
3938 spin_lock_irq(&phba->hbalock);
3939 phba->link_flag &= ~LS_IGNORE_ERATT;
3940 spin_unlock_irq(&phba->hbalock);
3944 spin_lock_irq(&phba->hbalock);
3945 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
3946 spin_unlock_irq(&phba->hbalock);
3948 mempool_free(pmb, phba->mbox_mem_pool);
3950 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
3951 * attention every 100ms for 3 seconds. If we don't get ERATT after
3952 * 3 seconds we still set HBA_ERROR state because the status of the
3953 * board is now undefined.
3955 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3957 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
3959 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3963 del_timer_sync(&psli->mbox_tmo);
3964 if (ha_copy & HA_ERATT) {
3965 writel(HA_ERATT, phba->HAregaddr);
3966 phba->pport->stopped = 1;
3968 spin_lock_irq(&phba->hbalock);
3969 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
3970 psli->mbox_active = NULL;
3971 phba->link_flag &= ~LS_IGNORE_ERATT;
3972 spin_unlock_irq(&phba->hbalock);
3974 lpfc_hba_down_post(phba);
3975 phba->link_state = LPFC_HBA_ERROR;
3977 return ha_copy & HA_ERATT ? 0 : 1;
3981 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
3982 * @phba: Pointer to HBA context object.
3984 * This function resets the HBA by writing HC_INITFF to the control
3985 * register. After the HBA resets, this function resets all the iocb ring
3986 * indices. This function disables PCI layer parity checking during
3988 * This function returns 0 always.
3989 * The caller is not required to hold any locks.
3992 lpfc_sli_brdreset(struct lpfc_hba *phba)
3994 struct lpfc_sli *psli;
3995 struct lpfc_sli_ring *pring;
4002 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4003 "0325 Reset HBA Data: x%x x%x\n",
4004 phba->pport->port_state, psli->sli_flag);
4006 /* perform board reset */
4007 phba->fc_eventTag = 0;
4008 phba->link_events = 0;
4009 phba->pport->fc_myDID = 0;
4010 phba->pport->fc_prevDID = 0;
4012 /* Turn off parity checking and serr during the physical reset */
4013 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
4014 pci_write_config_word(phba->pcidev, PCI_COMMAND,
4016 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4018 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
4020 /* Now toggle INITFF bit in the Host Control Register */
4021 writel(HC_INITFF, phba->HCregaddr);
4023 readl(phba->HCregaddr); /* flush */
4024 writel(0, phba->HCregaddr);
4025 readl(phba->HCregaddr); /* flush */
4027 /* Restore PCI cmd register */
4028 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
4030 /* Initialize relevant SLI info */
4031 for (i = 0; i < psli->num_rings; i++) {
4032 pring = &psli->ring[i];
4034 pring->sli.sli3.rspidx = 0;
4035 pring->sli.sli3.next_cmdidx = 0;
4036 pring->sli.sli3.local_getidx = 0;
4037 pring->sli.sli3.cmdidx = 0;
4038 pring->missbufcnt = 0;
4041 phba->link_state = LPFC_WARM_START;
4046 * lpfc_sli4_brdreset - Reset a sli-4 HBA
4047 * @phba: Pointer to HBA context object.
4049 * This function resets a SLI4 HBA. This function disables PCI layer parity
4050 * checking during resets the device. The caller is not required to hold
4053 * This function returns 0 always.
4056 lpfc_sli4_brdreset(struct lpfc_hba *phba)
4058 struct lpfc_sli *psli = &phba->sli;
4063 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4064 "0295 Reset HBA Data: x%x x%x x%x\n",
4065 phba->pport->port_state, psli->sli_flag,
4068 /* perform board reset */
4069 phba->fc_eventTag = 0;
4070 phba->link_events = 0;
4071 phba->pport->fc_myDID = 0;
4072 phba->pport->fc_prevDID = 0;
4074 spin_lock_irq(&phba->hbalock);
4075 psli->sli_flag &= ~(LPFC_PROCESS_LA);
4076 phba->fcf.fcf_flag = 0;
4077 spin_unlock_irq(&phba->hbalock);
4079 /* SLI4 INTF 2: if FW dump is being taken skip INIT_PORT */
4080 if (phba->hba_flag & HBA_FW_DUMP_OP) {
4081 phba->hba_flag &= ~HBA_FW_DUMP_OP;
4085 /* Now physically reset the device */
4086 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4087 "0389 Performing PCI function reset!\n");
4089 /* Turn off parity checking and serr during the physical reset */
4090 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
4091 pci_write_config_word(phba->pcidev, PCI_COMMAND, (cfg_value &
4092 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4094 /* Perform FCoE PCI function reset before freeing queue memory */
4095 rc = lpfc_pci_function_reset(phba);
4096 lpfc_sli4_queue_destroy(phba);
4098 /* Restore PCI cmd register */
4099 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
4105 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
4106 * @phba: Pointer to HBA context object.
4108 * This function is called in the SLI initialization code path to
4109 * restart the HBA. The caller is not required to hold any lock.
4110 * This function writes MBX_RESTART mailbox command to the SLIM and
4111 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
4112 * function to free any pending commands. The function enables
4113 * POST only during the first initialization. The function returns zero.
4114 * The function does not guarantee completion of MBX_RESTART mailbox
4115 * command before the return of this function.
4118 lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
4121 struct lpfc_sli *psli;
4122 volatile uint32_t word0;
4123 void __iomem *to_slim;
4124 uint32_t hba_aer_enabled;
4126 spin_lock_irq(&phba->hbalock);
4128 /* Take PCIe device Advanced Error Reporting (AER) state */
4129 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4134 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4135 "0337 Restart HBA Data: x%x x%x\n",
4136 phba->pport->port_state, psli->sli_flag);
4139 mb = (MAILBOX_t *) &word0;
4140 mb->mbxCommand = MBX_RESTART;
4143 lpfc_reset_barrier(phba);
4145 to_slim = phba->MBslimaddr;
4146 writel(*(uint32_t *) mb, to_slim);
4147 readl(to_slim); /* flush */
4149 /* Only skip post after fc_ffinit is completed */
4150 if (phba->pport->port_state)
4151 word0 = 1; /* This is really setting up word1 */
4153 word0 = 0; /* This is really setting up word1 */
4154 to_slim = phba->MBslimaddr + sizeof (uint32_t);
4155 writel(*(uint32_t *) mb, to_slim);
4156 readl(to_slim); /* flush */
4158 lpfc_sli_brdreset(phba);
4159 phba->pport->stopped = 0;
4160 phba->link_state = LPFC_INIT_START;
4162 spin_unlock_irq(&phba->hbalock);
4164 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4165 psli->stats_start = get_seconds();
4167 /* Give the INITFF and Post time to settle. */
4170 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4171 if (hba_aer_enabled)
4172 pci_disable_pcie_error_reporting(phba->pcidev);
4174 lpfc_hba_down_post(phba);
4180 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
4181 * @phba: Pointer to HBA context object.
4183 * This function is called in the SLI initialization code path to restart
4184 * a SLI4 HBA. The caller is not required to hold any lock.
4185 * At the end of the function, it calls lpfc_hba_down_post function to
4186 * free any pending commands.
4189 lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
4191 struct lpfc_sli *psli = &phba->sli;
4192 uint32_t hba_aer_enabled;
4196 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4197 "0296 Restart HBA Data: x%x x%x\n",
4198 phba->pport->port_state, psli->sli_flag);
4200 /* Take PCIe device Advanced Error Reporting (AER) state */
4201 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4203 rc = lpfc_sli4_brdreset(phba);
4205 spin_lock_irq(&phba->hbalock);
4206 phba->pport->stopped = 0;
4207 phba->link_state = LPFC_INIT_START;
4209 spin_unlock_irq(&phba->hbalock);
4211 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4212 psli->stats_start = get_seconds();
4214 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4215 if (hba_aer_enabled)
4216 pci_disable_pcie_error_reporting(phba->pcidev);
4218 lpfc_hba_down_post(phba);
4224 * lpfc_sli_brdrestart - Wrapper func for restarting hba
4225 * @phba: Pointer to HBA context object.
4227 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
4228 * API jump table function pointer from the lpfc_hba struct.
4231 lpfc_sli_brdrestart(struct lpfc_hba *phba)
4233 return phba->lpfc_sli_brdrestart(phba);
4237 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
4238 * @phba: Pointer to HBA context object.
4240 * This function is called after a HBA restart to wait for successful
4241 * restart of the HBA. Successful restart of the HBA is indicated by
4242 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
4243 * iteration, the function will restart the HBA again. The function returns
4244 * zero if HBA successfully restarted else returns negative error code.
4247 lpfc_sli_chipset_init(struct lpfc_hba *phba)
4249 uint32_t status, i = 0;
4251 /* Read the HBA Host Status Register */
4252 if (lpfc_readl(phba->HSregaddr, &status))
4255 /* Check status register to see what current state is */
4257 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
4259 /* Check every 10ms for 10 retries, then every 100ms for 90
4260 * retries, then every 1 sec for 50 retires for a total of
4261 * ~60 seconds before reset the board again and check every
4262 * 1 sec for 50 retries. The up to 60 seconds before the
4263 * board ready is required by the Falcon FIPS zeroization
4264 * complete, and any reset the board in between shall cause
4265 * restart of zeroization, further delay the board ready.
4268 /* Adapter failed to init, timeout, status reg
4270 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4271 "0436 Adapter failed to init, "
4272 "timeout, status reg x%x, "
4273 "FW Data: A8 x%x AC x%x\n", status,
4274 readl(phba->MBslimaddr + 0xa8),
4275 readl(phba->MBslimaddr + 0xac));
4276 phba->link_state = LPFC_HBA_ERROR;
4280 /* Check to see if any errors occurred during init */
4281 if (status & HS_FFERM) {
4282 /* ERROR: During chipset initialization */
4283 /* Adapter failed to init, chipset, status reg
4285 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4286 "0437 Adapter failed to init, "
4287 "chipset, status reg x%x, "
4288 "FW Data: A8 x%x AC x%x\n", status,
4289 readl(phba->MBslimaddr + 0xa8),
4290 readl(phba->MBslimaddr + 0xac));
4291 phba->link_state = LPFC_HBA_ERROR;
4304 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4305 lpfc_sli_brdrestart(phba);
4307 /* Read the HBA Host Status Register */
4308 if (lpfc_readl(phba->HSregaddr, &status))
4312 /* Check to see if any errors occurred during init */
4313 if (status & HS_FFERM) {
4314 /* ERROR: During chipset initialization */
4315 /* Adapter failed to init, chipset, status reg <status> */
4316 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4317 "0438 Adapter failed to init, chipset, "
4319 "FW Data: A8 x%x AC x%x\n", status,
4320 readl(phba->MBslimaddr + 0xa8),
4321 readl(phba->MBslimaddr + 0xac));
4322 phba->link_state = LPFC_HBA_ERROR;
4326 /* Clear all interrupt enable conditions */
4327 writel(0, phba->HCregaddr);
4328 readl(phba->HCregaddr); /* flush */
4330 /* setup host attn register */
4331 writel(0xffffffff, phba->HAregaddr);
4332 readl(phba->HAregaddr); /* flush */
4337 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
4339 * This function calculates and returns the number of HBQs required to be
4343 lpfc_sli_hbq_count(void)
4345 return ARRAY_SIZE(lpfc_hbq_defs);
4349 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
4351 * This function adds the number of hbq entries in every HBQ to get
4352 * the total number of hbq entries required for the HBA and returns
4356 lpfc_sli_hbq_entry_count(void)
4358 int hbq_count = lpfc_sli_hbq_count();
4362 for (i = 0; i < hbq_count; ++i)
4363 count += lpfc_hbq_defs[i]->entry_count;
4368 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
4370 * This function calculates amount of memory required for all hbq entries
4371 * to be configured and returns the total memory required.
4374 lpfc_sli_hbq_size(void)
4376 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
4380 * lpfc_sli_hbq_setup - configure and initialize HBQs
4381 * @phba: Pointer to HBA context object.
4383 * This function is called during the SLI initialization to configure
4384 * all the HBQs and post buffers to the HBQ. The caller is not
4385 * required to hold any locks. This function will return zero if successful
4386 * else it will return negative error code.
4389 lpfc_sli_hbq_setup(struct lpfc_hba *phba)
4391 int hbq_count = lpfc_sli_hbq_count();
4395 uint32_t hbq_entry_index;
4397 /* Get a Mailbox buffer to setup mailbox
4398 * commands for HBA initialization
4400 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4407 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
4408 phba->link_state = LPFC_INIT_MBX_CMDS;
4409 phba->hbq_in_use = 1;
4411 hbq_entry_index = 0;
4412 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
4413 phba->hbqs[hbqno].next_hbqPutIdx = 0;
4414 phba->hbqs[hbqno].hbqPutIdx = 0;
4415 phba->hbqs[hbqno].local_hbqGetIdx = 0;
4416 phba->hbqs[hbqno].entry_count =
4417 lpfc_hbq_defs[hbqno]->entry_count;
4418 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
4419 hbq_entry_index, pmb);
4420 hbq_entry_index += phba->hbqs[hbqno].entry_count;
4422 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
4423 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
4424 mbxStatus <status>, ring <num> */
4426 lpfc_printf_log(phba, KERN_ERR,
4427 LOG_SLI | LOG_VPORT,
4428 "1805 Adapter failed to init. "
4429 "Data: x%x x%x x%x\n",
4431 pmbox->mbxStatus, hbqno);
4433 phba->link_state = LPFC_HBA_ERROR;
4434 mempool_free(pmb, phba->mbox_mem_pool);
4438 phba->hbq_count = hbq_count;
4440 mempool_free(pmb, phba->mbox_mem_pool);
4442 /* Initially populate or replenish the HBQs */
4443 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
4444 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
4449 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
4450 * @phba: Pointer to HBA context object.
4452 * This function is called during the SLI initialization to configure
4453 * all the HBQs and post buffers to the HBQ. The caller is not
4454 * required to hold any locks. This function will return zero if successful
4455 * else it will return negative error code.
4458 lpfc_sli4_rb_setup(struct lpfc_hba *phba)
4460 phba->hbq_in_use = 1;
4461 phba->hbqs[0].entry_count = lpfc_hbq_defs[0]->entry_count;
4462 phba->hbq_count = 1;
4463 /* Initially populate or replenish the HBQs */
4464 lpfc_sli_hbqbuf_init_hbqs(phba, 0);
4469 * lpfc_sli_config_port - Issue config port mailbox command
4470 * @phba: Pointer to HBA context object.
4471 * @sli_mode: sli mode - 2/3
4473 * This function is called by the sli intialization code path
4474 * to issue config_port mailbox command. This function restarts the
4475 * HBA firmware and issues a config_port mailbox command to configure
4476 * the SLI interface in the sli mode specified by sli_mode
4477 * variable. The caller is not required to hold any locks.
4478 * The function returns 0 if successful, else returns negative error
4482 lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
4485 uint32_t resetcount = 0, rc = 0, done = 0;
4487 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4489 phba->link_state = LPFC_HBA_ERROR;
4493 phba->sli_rev = sli_mode;
4494 while (resetcount < 2 && !done) {
4495 spin_lock_irq(&phba->hbalock);
4496 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
4497 spin_unlock_irq(&phba->hbalock);
4498 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4499 lpfc_sli_brdrestart(phba);
4500 rc = lpfc_sli_chipset_init(phba);
4504 spin_lock_irq(&phba->hbalock);
4505 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4506 spin_unlock_irq(&phba->hbalock);
4509 /* Call pre CONFIG_PORT mailbox command initialization. A
4510 * value of 0 means the call was successful. Any other
4511 * nonzero value is a failure, but if ERESTART is returned,
4512 * the driver may reset the HBA and try again.
4514 rc = lpfc_config_port_prep(phba);
4515 if (rc == -ERESTART) {
4516 phba->link_state = LPFC_LINK_UNKNOWN;
4521 phba->link_state = LPFC_INIT_MBX_CMDS;
4522 lpfc_config_port(phba, pmb);
4523 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
4524 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
4525 LPFC_SLI3_HBQ_ENABLED |
4526 LPFC_SLI3_CRP_ENABLED |
4527 LPFC_SLI3_BG_ENABLED |
4528 LPFC_SLI3_DSS_ENABLED);
4529 if (rc != MBX_SUCCESS) {
4530 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4531 "0442 Adapter failed to init, mbxCmd x%x "
4532 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
4533 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
4534 spin_lock_irq(&phba->hbalock);
4535 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
4536 spin_unlock_irq(&phba->hbalock);
4539 /* Allow asynchronous mailbox command to go through */
4540 spin_lock_irq(&phba->hbalock);
4541 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
4542 spin_unlock_irq(&phba->hbalock);
4545 if ((pmb->u.mb.un.varCfgPort.casabt == 1) &&
4546 (pmb->u.mb.un.varCfgPort.gasabt == 0))
4547 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4548 "3110 Port did not grant ASABT\n");
4553 goto do_prep_failed;
4555 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
4556 if (!pmb->u.mb.un.varCfgPort.cMA) {
4558 goto do_prep_failed;
4560 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
4561 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
4562 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
4563 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
4564 phba->max_vpi : phba->max_vports;
4568 phba->fips_level = 0;
4569 phba->fips_spec_rev = 0;
4570 if (pmb->u.mb.un.varCfgPort.gdss) {
4571 phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
4572 phba->fips_level = pmb->u.mb.un.varCfgPort.fips_level;
4573 phba->fips_spec_rev = pmb->u.mb.un.varCfgPort.fips_rev;
4574 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4575 "2850 Security Crypto Active. FIPS x%d "
4577 phba->fips_level, phba->fips_spec_rev);
4579 if (pmb->u.mb.un.varCfgPort.sec_err) {
4580 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4581 "2856 Config Port Security Crypto "
4583 pmb->u.mb.un.varCfgPort.sec_err);
4585 if (pmb->u.mb.un.varCfgPort.gerbm)
4586 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
4587 if (pmb->u.mb.un.varCfgPort.gcrp)
4588 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
4590 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
4591 phba->port_gp = phba->mbox->us.s3_pgp.port;
4593 if (phba->cfg_enable_bg) {
4594 if (pmb->u.mb.un.varCfgPort.gbg)
4595 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
4597 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4598 "0443 Adapter did not grant "
4602 phba->hbq_get = NULL;
4603 phba->port_gp = phba->mbox->us.s2.port;
4607 mempool_free(pmb, phba->mbox_mem_pool);
4613 * lpfc_sli_hba_setup - SLI intialization function
4614 * @phba: Pointer to HBA context object.
4616 * This function is the main SLI intialization function. This function
4617 * is called by the HBA intialization code, HBA reset code and HBA
4618 * error attention handler code. Caller is not required to hold any
4619 * locks. This function issues config_port mailbox command to configure
4620 * the SLI, setup iocb rings and HBQ rings. In the end the function
4621 * calls the config_port_post function to issue init_link mailbox
4622 * command and to start the discovery. The function will return zero
4623 * if successful, else it will return negative error code.
4626 lpfc_sli_hba_setup(struct lpfc_hba *phba)
4632 switch (lpfc_sli_mode) {
4634 if (phba->cfg_enable_npiv) {
4635 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4636 "1824 NPIV enabled: Override lpfc_sli_mode "
4637 "parameter (%d) to auto (0).\n",
4647 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4648 "1819 Unrecognized lpfc_sli_mode "
4649 "parameter: %d.\n", lpfc_sli_mode);
4654 rc = lpfc_sli_config_port(phba, mode);
4656 if (rc && lpfc_sli_mode == 3)
4657 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4658 "1820 Unable to select SLI-3. "
4659 "Not supported by adapter.\n");
4660 if (rc && mode != 2)
4661 rc = lpfc_sli_config_port(phba, 2);
4663 goto lpfc_sli_hba_setup_error;
4665 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4666 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
4667 rc = pci_enable_pcie_error_reporting(phba->pcidev);
4669 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4670 "2709 This device supports "
4671 "Advanced Error Reporting (AER)\n");
4672 spin_lock_irq(&phba->hbalock);
4673 phba->hba_flag |= HBA_AER_ENABLED;
4674 spin_unlock_irq(&phba->hbalock);
4676 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4677 "2708 This device does not support "
4678 "Advanced Error Reporting (AER): %d\n",
4680 phba->cfg_aer_support = 0;
4684 if (phba->sli_rev == 3) {
4685 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
4686 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
4688 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
4689 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
4690 phba->sli3_options = 0;
4693 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4694 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
4695 phba->sli_rev, phba->max_vpi);
4696 rc = lpfc_sli_ring_map(phba);
4699 goto lpfc_sli_hba_setup_error;
4701 /* Initialize VPIs. */
4702 if (phba->sli_rev == LPFC_SLI_REV3) {
4704 * The VPI bitmask and physical ID array are allocated
4705 * and initialized once only - at driver load. A port
4706 * reset doesn't need to reinitialize this memory.
4708 if ((phba->vpi_bmask == NULL) && (phba->vpi_ids == NULL)) {
4709 longs = (phba->max_vpi + BITS_PER_LONG) / BITS_PER_LONG;
4710 phba->vpi_bmask = kzalloc(longs * sizeof(unsigned long),
4712 if (!phba->vpi_bmask) {
4714 goto lpfc_sli_hba_setup_error;
4717 phba->vpi_ids = kzalloc(
4718 (phba->max_vpi+1) * sizeof(uint16_t),
4720 if (!phba->vpi_ids) {
4721 kfree(phba->vpi_bmask);
4723 goto lpfc_sli_hba_setup_error;
4725 for (i = 0; i < phba->max_vpi; i++)
4726 phba->vpi_ids[i] = i;
4731 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
4732 rc = lpfc_sli_hbq_setup(phba);
4734 goto lpfc_sli_hba_setup_error;
4736 spin_lock_irq(&phba->hbalock);
4737 phba->sli.sli_flag |= LPFC_PROCESS_LA;
4738 spin_unlock_irq(&phba->hbalock);
4740 rc = lpfc_config_port_post(phba);
4742 goto lpfc_sli_hba_setup_error;
4746 lpfc_sli_hba_setup_error:
4747 phba->link_state = LPFC_HBA_ERROR;
4748 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4749 "0445 Firmware initialization failed\n");
4754 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
4755 * @phba: Pointer to HBA context object.
4756 * @mboxq: mailbox pointer.
4757 * This function issue a dump mailbox command to read config region
4758 * 23 and parse the records in the region and populate driver
4762 lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba)
4764 LPFC_MBOXQ_t *mboxq;
4765 struct lpfc_dmabuf *mp;
4766 struct lpfc_mqe *mqe;
4767 uint32_t data_length;
4770 /* Program the default value of vlan_id and fc_map */
4771 phba->valid_vlan = 0;
4772 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4773 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4774 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4776 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4780 mqe = &mboxq->u.mqe;
4781 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq)) {
4783 goto out_free_mboxq;
4786 mp = (struct lpfc_dmabuf *) mboxq->context1;
4787 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4789 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4790 "(%d):2571 Mailbox cmd x%x Status x%x "
4791 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4792 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4793 "CQ: x%x x%x x%x x%x\n",
4794 mboxq->vport ? mboxq->vport->vpi : 0,
4795 bf_get(lpfc_mqe_command, mqe),
4796 bf_get(lpfc_mqe_status, mqe),
4797 mqe->un.mb_words[0], mqe->un.mb_words[1],
4798 mqe->un.mb_words[2], mqe->un.mb_words[3],
4799 mqe->un.mb_words[4], mqe->un.mb_words[5],
4800 mqe->un.mb_words[6], mqe->un.mb_words[7],
4801 mqe->un.mb_words[8], mqe->un.mb_words[9],
4802 mqe->un.mb_words[10], mqe->un.mb_words[11],
4803 mqe->un.mb_words[12], mqe->un.mb_words[13],
4804 mqe->un.mb_words[14], mqe->un.mb_words[15],
4805 mqe->un.mb_words[16], mqe->un.mb_words[50],
4807 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
4808 mboxq->mcqe.trailer);
4811 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4814 goto out_free_mboxq;
4816 data_length = mqe->un.mb_words[5];
4817 if (data_length > DMP_RGN23_SIZE) {
4818 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4821 goto out_free_mboxq;
4824 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
4825 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4830 mempool_free(mboxq, phba->mbox_mem_pool);
4835 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
4836 * @phba: pointer to lpfc hba data structure.
4837 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
4838 * @vpd: pointer to the memory to hold resulting port vpd data.
4839 * @vpd_size: On input, the number of bytes allocated to @vpd.
4840 * On output, the number of data bytes in @vpd.
4842 * This routine executes a READ_REV SLI4 mailbox command. In
4843 * addition, this routine gets the port vpd data.
4847 * -ENOMEM - could not allocated memory.
4850 lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
4851 uint8_t *vpd, uint32_t *vpd_size)
4855 struct lpfc_dmabuf *dmabuf;
4856 struct lpfc_mqe *mqe;
4858 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4863 * Get a DMA buffer for the vpd data resulting from the READ_REV
4866 dma_size = *vpd_size;
4867 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4871 if (!dmabuf->virt) {
4875 memset(dmabuf->virt, 0, dma_size);
4878 * The SLI4 implementation of READ_REV conflicts at word1,
4879 * bits 31:16 and SLI4 adds vpd functionality not present
4880 * in SLI3. This code corrects the conflicts.
4882 lpfc_read_rev(phba, mboxq);
4883 mqe = &mboxq->u.mqe;
4884 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
4885 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
4886 mqe->un.read_rev.word1 &= 0x0000FFFF;
4887 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
4888 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
4890 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4892 dma_free_coherent(&phba->pcidev->dev, dma_size,
4893 dmabuf->virt, dmabuf->phys);
4899 * The available vpd length cannot be bigger than the
4900 * DMA buffer passed to the port. Catch the less than
4901 * case and update the caller's size.
4903 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
4904 *vpd_size = mqe->un.read_rev.avail_vpd_len;
4906 memcpy(vpd, dmabuf->virt, *vpd_size);
4908 dma_free_coherent(&phba->pcidev->dev, dma_size,
4909 dmabuf->virt, dmabuf->phys);
4915 * lpfc_sli4_retrieve_pport_name - Retrieve SLI4 device physical port name
4916 * @phba: pointer to lpfc hba data structure.
4918 * This routine retrieves SLI4 device physical port name this PCI function
4923 * otherwise - failed to retrieve physical port name
4926 lpfc_sli4_retrieve_pport_name(struct lpfc_hba *phba)
4928 LPFC_MBOXQ_t *mboxq;
4929 struct lpfc_mbx_get_cntl_attributes *mbx_cntl_attr;
4930 struct lpfc_controller_attribute *cntl_attr;
4931 struct lpfc_mbx_get_port_name *get_port_name;
4932 void *virtaddr = NULL;
4933 uint32_t alloclen, reqlen;
4934 uint32_t shdr_status, shdr_add_status;
4935 union lpfc_sli4_cfg_shdr *shdr;
4936 char cport_name = 0;
4939 /* We assume nothing at this point */
4940 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
4941 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_NON;
4943 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4946 /* obtain link type and link number via READ_CONFIG */
4947 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
4948 lpfc_sli4_read_config(phba);
4949 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL)
4950 goto retrieve_ppname;
4952 /* obtain link type and link number via COMMON_GET_CNTL_ATTRIBUTES */
4953 reqlen = sizeof(struct lpfc_mbx_get_cntl_attributes);
4954 alloclen = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
4955 LPFC_MBOX_OPCODE_GET_CNTL_ATTRIBUTES, reqlen,
4956 LPFC_SLI4_MBX_NEMBED);
4957 if (alloclen < reqlen) {
4958 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4959 "3084 Allocated DMA memory size (%d) is "
4960 "less than the requested DMA memory size "
4961 "(%d)\n", alloclen, reqlen);
4963 goto out_free_mboxq;
4965 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4966 virtaddr = mboxq->sge_array->addr[0];
4967 mbx_cntl_attr = (struct lpfc_mbx_get_cntl_attributes *)virtaddr;
4968 shdr = &mbx_cntl_attr->cfg_shdr;
4969 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
4970 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
4971 if (shdr_status || shdr_add_status || rc) {
4972 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4973 "3085 Mailbox x%x (x%x/x%x) failed, "
4974 "rc:x%x, status:x%x, add_status:x%x\n",
4975 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4976 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
4977 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
4978 rc, shdr_status, shdr_add_status);
4980 goto out_free_mboxq;
4982 cntl_attr = &mbx_cntl_attr->cntl_attr;
4983 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
4984 phba->sli4_hba.lnk_info.lnk_tp =
4985 bf_get(lpfc_cntl_attr_lnk_type, cntl_attr);
4986 phba->sli4_hba.lnk_info.lnk_no =
4987 bf_get(lpfc_cntl_attr_lnk_numb, cntl_attr);
4988 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4989 "3086 lnk_type:%d, lnk_numb:%d\n",
4990 phba->sli4_hba.lnk_info.lnk_tp,
4991 phba->sli4_hba.lnk_info.lnk_no);
4994 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
4995 LPFC_MBOX_OPCODE_GET_PORT_NAME,
4996 sizeof(struct lpfc_mbx_get_port_name) -
4997 sizeof(struct lpfc_sli4_cfg_mhdr),
4998 LPFC_SLI4_MBX_EMBED);
4999 get_port_name = &mboxq->u.mqe.un.get_port_name;
5000 shdr = (union lpfc_sli4_cfg_shdr *)&get_port_name->header.cfg_shdr;
5001 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_OPCODE_VERSION_1);
5002 bf_set(lpfc_mbx_get_port_name_lnk_type, &get_port_name->u.request,
5003 phba->sli4_hba.lnk_info.lnk_tp);
5004 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5005 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5006 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5007 if (shdr_status || shdr_add_status || rc) {
5008 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5009 "3087 Mailbox x%x (x%x/x%x) failed: "
5010 "rc:x%x, status:x%x, add_status:x%x\n",
5011 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5012 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
5013 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
5014 rc, shdr_status, shdr_add_status);
5016 goto out_free_mboxq;
5018 switch (phba->sli4_hba.lnk_info.lnk_no) {
5019 case LPFC_LINK_NUMBER_0:
5020 cport_name = bf_get(lpfc_mbx_get_port_name_name0,
5021 &get_port_name->u.response);
5022 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5024 case LPFC_LINK_NUMBER_1:
5025 cport_name = bf_get(lpfc_mbx_get_port_name_name1,
5026 &get_port_name->u.response);
5027 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5029 case LPFC_LINK_NUMBER_2:
5030 cport_name = bf_get(lpfc_mbx_get_port_name_name2,
5031 &get_port_name->u.response);
5032 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5034 case LPFC_LINK_NUMBER_3:
5035 cport_name = bf_get(lpfc_mbx_get_port_name_name3,
5036 &get_port_name->u.response);
5037 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5043 if (phba->sli4_hba.pport_name_sta == LPFC_SLI4_PPNAME_GET) {
5044 phba->Port[0] = cport_name;
5045 phba->Port[1] = '\0';
5046 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5047 "3091 SLI get port name: %s\n", phba->Port);
5051 if (rc != MBX_TIMEOUT) {
5052 if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
5053 lpfc_sli4_mbox_cmd_free(phba, mboxq);
5055 mempool_free(mboxq, phba->mbox_mem_pool);
5061 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
5062 * @phba: pointer to lpfc hba data structure.
5064 * This routine is called to explicitly arm the SLI4 device's completion and
5068 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
5072 lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM);
5073 lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM);
5075 if (phba->sli4_hba.fcp_cq) {
5077 lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[fcp_eqidx],
5079 } while (++fcp_eqidx < phba->cfg_fcp_io_channel);
5083 lpfc_sli4_cq_release(phba->sli4_hba.oas_cq, LPFC_QUEUE_REARM);
5085 if (phba->sli4_hba.hba_eq) {
5086 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel;
5088 lpfc_sli4_eq_release(phba->sli4_hba.hba_eq[fcp_eqidx],
5093 lpfc_sli4_eq_release(phba->sli4_hba.fof_eq, LPFC_QUEUE_REARM);
5097 * lpfc_sli4_get_avail_extnt_rsrc - Get available resource extent count.
5098 * @phba: Pointer to HBA context object.
5099 * @type: The resource extent type.
5100 * @extnt_count: buffer to hold port available extent count.
5101 * @extnt_size: buffer to hold element count per extent.
5103 * This function calls the port and retrievs the number of available
5104 * extents and their size for a particular extent type.
5106 * Returns: 0 if successful. Nonzero otherwise.
5109 lpfc_sli4_get_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type,
5110 uint16_t *extnt_count, uint16_t *extnt_size)
5115 struct lpfc_mbx_get_rsrc_extent_info *rsrc_info;
5118 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5122 /* Find out how many extents are available for this resource type */
5123 length = (sizeof(struct lpfc_mbx_get_rsrc_extent_info) -
5124 sizeof(struct lpfc_sli4_cfg_mhdr));
5125 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5126 LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO,
5127 length, LPFC_SLI4_MBX_EMBED);
5129 /* Send an extents count of 0 - the GET doesn't use it. */
5130 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5131 LPFC_SLI4_MBX_EMBED);
5137 if (!phba->sli4_hba.intr_enable)
5138 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5140 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5141 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5148 rsrc_info = &mbox->u.mqe.un.rsrc_extent_info;
5149 if (bf_get(lpfc_mbox_hdr_status,
5150 &rsrc_info->header.cfg_shdr.response)) {
5151 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5152 "2930 Failed to get resource extents "
5153 "Status 0x%x Add'l Status 0x%x\n",
5154 bf_get(lpfc_mbox_hdr_status,
5155 &rsrc_info->header.cfg_shdr.response),
5156 bf_get(lpfc_mbox_hdr_add_status,
5157 &rsrc_info->header.cfg_shdr.response));
5162 *extnt_count = bf_get(lpfc_mbx_get_rsrc_extent_info_cnt,
5164 *extnt_size = bf_get(lpfc_mbx_get_rsrc_extent_info_size,
5167 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5168 "3162 Retrieved extents type-%d from port: count:%d, "
5169 "size:%d\n", type, *extnt_count, *extnt_size);
5172 mempool_free(mbox, phba->mbox_mem_pool);
5177 * lpfc_sli4_chk_avail_extnt_rsrc - Check for available SLI4 resource extents.
5178 * @phba: Pointer to HBA context object.
5179 * @type: The extent type to check.
5181 * This function reads the current available extents from the port and checks
5182 * if the extent count or extent size has changed since the last access.
5183 * Callers use this routine post port reset to understand if there is a
5184 * extent reprovisioning requirement.
5187 * -Error: error indicates problem.
5188 * 1: Extent count or size has changed.
5192 lpfc_sli4_chk_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type)
5194 uint16_t curr_ext_cnt, rsrc_ext_cnt;
5195 uint16_t size_diff, rsrc_ext_size;
5197 struct lpfc_rsrc_blks *rsrc_entry;
5198 struct list_head *rsrc_blk_list = NULL;
5202 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5209 case LPFC_RSC_TYPE_FCOE_RPI:
5210 rsrc_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5212 case LPFC_RSC_TYPE_FCOE_VPI:
5213 rsrc_blk_list = &phba->lpfc_vpi_blk_list;
5215 case LPFC_RSC_TYPE_FCOE_XRI:
5216 rsrc_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5218 case LPFC_RSC_TYPE_FCOE_VFI:
5219 rsrc_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5225 list_for_each_entry(rsrc_entry, rsrc_blk_list, list) {
5227 if (rsrc_entry->rsrc_size != rsrc_ext_size)
5231 if (curr_ext_cnt != rsrc_ext_cnt || size_diff != 0)
5238 * lpfc_sli4_cfg_post_extnts -
5239 * @phba: Pointer to HBA context object.
5240 * @extnt_cnt - number of available extents.
5241 * @type - the extent type (rpi, xri, vfi, vpi).
5242 * @emb - buffer to hold either MBX_EMBED or MBX_NEMBED operation.
5243 * @mbox - pointer to the caller's allocated mailbox structure.
5245 * This function executes the extents allocation request. It also
5246 * takes care of the amount of memory needed to allocate or get the
5247 * allocated extents. It is the caller's responsibility to evaluate
5251 * -Error: Error value describes the condition found.
5255 lpfc_sli4_cfg_post_extnts(struct lpfc_hba *phba, uint16_t extnt_cnt,
5256 uint16_t type, bool *emb, LPFC_MBOXQ_t *mbox)
5261 uint32_t alloc_len, mbox_tmo;
5263 /* Calculate the total requested length of the dma memory */
5264 req_len = extnt_cnt * sizeof(uint16_t);
5267 * Calculate the size of an embedded mailbox. The uint32_t
5268 * accounts for extents-specific word.
5270 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
5274 * Presume the allocation and response will fit into an embedded
5275 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5277 *emb = LPFC_SLI4_MBX_EMBED;
5278 if (req_len > emb_len) {
5279 req_len = extnt_cnt * sizeof(uint16_t) +
5280 sizeof(union lpfc_sli4_cfg_shdr) +
5282 *emb = LPFC_SLI4_MBX_NEMBED;
5285 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5286 LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT,
5288 if (alloc_len < req_len) {
5289 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5290 "2982 Allocated DMA memory size (x%x) is "
5291 "less than the requested DMA memory "
5292 "size (x%x)\n", alloc_len, req_len);
5295 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, extnt_cnt, type, *emb);
5299 if (!phba->sli4_hba.intr_enable)
5300 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5302 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5303 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5312 * lpfc_sli4_alloc_extent - Allocate an SLI4 resource extent.
5313 * @phba: Pointer to HBA context object.
5314 * @type: The resource extent type to allocate.
5316 * This function allocates the number of elements for the specified
5320 lpfc_sli4_alloc_extent(struct lpfc_hba *phba, uint16_t type)
5323 uint16_t rsrc_id_cnt, rsrc_cnt, rsrc_size;
5324 uint16_t rsrc_id, rsrc_start, j, k;
5327 unsigned long longs;
5328 unsigned long *bmask;
5329 struct lpfc_rsrc_blks *rsrc_blks;
5332 struct lpfc_id_range *id_array = NULL;
5333 void *virtaddr = NULL;
5334 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5335 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5336 struct list_head *ext_blk_list;
5338 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5344 if ((rsrc_cnt == 0) || (rsrc_size == 0)) {
5345 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5346 "3009 No available Resource Extents "
5347 "for resource type 0x%x: Count: 0x%x, "
5348 "Size 0x%x\n", type, rsrc_cnt,
5353 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_INIT | LOG_SLI,
5354 "2903 Post resource extents type-0x%x: "
5355 "count:%d, size %d\n", type, rsrc_cnt, rsrc_size);
5357 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5361 rc = lpfc_sli4_cfg_post_extnts(phba, rsrc_cnt, type, &emb, mbox);
5368 * Figure out where the response is located. Then get local pointers
5369 * to the response data. The port does not guarantee to respond to
5370 * all extents counts request so update the local variable with the
5371 * allocated count from the port.
5373 if (emb == LPFC_SLI4_MBX_EMBED) {
5374 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
5375 id_array = &rsrc_ext->u.rsp.id[0];
5376 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
5378 virtaddr = mbox->sge_array->addr[0];
5379 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
5380 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
5381 id_array = &n_rsrc->id;
5384 longs = ((rsrc_cnt * rsrc_size) + BITS_PER_LONG - 1) / BITS_PER_LONG;
5385 rsrc_id_cnt = rsrc_cnt * rsrc_size;
5388 * Based on the resource size and count, correct the base and max
5391 length = sizeof(struct lpfc_rsrc_blks);
5393 case LPFC_RSC_TYPE_FCOE_RPI:
5394 phba->sli4_hba.rpi_bmask = kzalloc(longs *
5395 sizeof(unsigned long),
5397 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5401 phba->sli4_hba.rpi_ids = kzalloc(rsrc_id_cnt *
5404 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5405 kfree(phba->sli4_hba.rpi_bmask);
5411 * The next_rpi was initialized with the maximum available
5412 * count but the port may allocate a smaller number. Catch
5413 * that case and update the next_rpi.
5415 phba->sli4_hba.next_rpi = rsrc_id_cnt;
5417 /* Initialize local ptrs for common extent processing later. */
5418 bmask = phba->sli4_hba.rpi_bmask;
5419 ids = phba->sli4_hba.rpi_ids;
5420 ext_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5422 case LPFC_RSC_TYPE_FCOE_VPI:
5423 phba->vpi_bmask = kzalloc(longs *
5424 sizeof(unsigned long),
5426 if (unlikely(!phba->vpi_bmask)) {
5430 phba->vpi_ids = kzalloc(rsrc_id_cnt *
5433 if (unlikely(!phba->vpi_ids)) {
5434 kfree(phba->vpi_bmask);
5439 /* Initialize local ptrs for common extent processing later. */
5440 bmask = phba->vpi_bmask;
5441 ids = phba->vpi_ids;
5442 ext_blk_list = &phba->lpfc_vpi_blk_list;
5444 case LPFC_RSC_TYPE_FCOE_XRI:
5445 phba->sli4_hba.xri_bmask = kzalloc(longs *
5446 sizeof(unsigned long),
5448 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5452 phba->sli4_hba.max_cfg_param.xri_used = 0;
5453 phba->sli4_hba.xri_ids = kzalloc(rsrc_id_cnt *
5456 if (unlikely(!phba->sli4_hba.xri_ids)) {
5457 kfree(phba->sli4_hba.xri_bmask);
5462 /* Initialize local ptrs for common extent processing later. */
5463 bmask = phba->sli4_hba.xri_bmask;
5464 ids = phba->sli4_hba.xri_ids;
5465 ext_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5467 case LPFC_RSC_TYPE_FCOE_VFI:
5468 phba->sli4_hba.vfi_bmask = kzalloc(longs *
5469 sizeof(unsigned long),
5471 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5475 phba->sli4_hba.vfi_ids = kzalloc(rsrc_id_cnt *
5478 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5479 kfree(phba->sli4_hba.vfi_bmask);
5484 /* Initialize local ptrs for common extent processing later. */
5485 bmask = phba->sli4_hba.vfi_bmask;
5486 ids = phba->sli4_hba.vfi_ids;
5487 ext_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5490 /* Unsupported Opcode. Fail call. */
5494 ext_blk_list = NULL;
5499 * Complete initializing the extent configuration with the
5500 * allocated ids assigned to this function. The bitmask serves
5501 * as an index into the array and manages the available ids. The
5502 * array just stores the ids communicated to the port via the wqes.
5504 for (i = 0, j = 0, k = 0; i < rsrc_cnt; i++) {
5506 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_0,
5509 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_1,
5512 rsrc_blks = kzalloc(length, GFP_KERNEL);
5513 if (unlikely(!rsrc_blks)) {
5519 rsrc_blks->rsrc_start = rsrc_id;
5520 rsrc_blks->rsrc_size = rsrc_size;
5521 list_add_tail(&rsrc_blks->list, ext_blk_list);
5522 rsrc_start = rsrc_id;
5523 if ((type == LPFC_RSC_TYPE_FCOE_XRI) && (j == 0))
5524 phba->sli4_hba.scsi_xri_start = rsrc_start +
5525 lpfc_sli4_get_els_iocb_cnt(phba);
5527 while (rsrc_id < (rsrc_start + rsrc_size)) {
5532 /* Entire word processed. Get next word.*/
5537 lpfc_sli4_mbox_cmd_free(phba, mbox);
5542 * lpfc_sli4_dealloc_extent - Deallocate an SLI4 resource extent.
5543 * @phba: Pointer to HBA context object.
5544 * @type: the extent's type.
5546 * This function deallocates all extents of a particular resource type.
5547 * SLI4 does not allow for deallocating a particular extent range. It
5548 * is the caller's responsibility to release all kernel memory resources.
5551 lpfc_sli4_dealloc_extent(struct lpfc_hba *phba, uint16_t type)
5554 uint32_t length, mbox_tmo = 0;
5556 struct lpfc_mbx_dealloc_rsrc_extents *dealloc_rsrc;
5557 struct lpfc_rsrc_blks *rsrc_blk, *rsrc_blk_next;
5559 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5564 * This function sends an embedded mailbox because it only sends the
5565 * the resource type. All extents of this type are released by the
5568 length = (sizeof(struct lpfc_mbx_dealloc_rsrc_extents) -
5569 sizeof(struct lpfc_sli4_cfg_mhdr));
5570 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5571 LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT,
5572 length, LPFC_SLI4_MBX_EMBED);
5574 /* Send an extents count of 0 - the dealloc doesn't use it. */
5575 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5576 LPFC_SLI4_MBX_EMBED);
5581 if (!phba->sli4_hba.intr_enable)
5582 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5584 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5585 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5592 dealloc_rsrc = &mbox->u.mqe.un.dealloc_rsrc_extents;
5593 if (bf_get(lpfc_mbox_hdr_status,
5594 &dealloc_rsrc->header.cfg_shdr.response)) {
5595 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5596 "2919 Failed to release resource extents "
5597 "for type %d - Status 0x%x Add'l Status 0x%x. "
5598 "Resource memory not released.\n",
5600 bf_get(lpfc_mbox_hdr_status,
5601 &dealloc_rsrc->header.cfg_shdr.response),
5602 bf_get(lpfc_mbox_hdr_add_status,
5603 &dealloc_rsrc->header.cfg_shdr.response));
5608 /* Release kernel memory resources for the specific type. */
5610 case LPFC_RSC_TYPE_FCOE_VPI:
5611 kfree(phba->vpi_bmask);
5612 kfree(phba->vpi_ids);
5613 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5614 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5615 &phba->lpfc_vpi_blk_list, list) {
5616 list_del_init(&rsrc_blk->list);
5619 phba->sli4_hba.max_cfg_param.vpi_used = 0;
5621 case LPFC_RSC_TYPE_FCOE_XRI:
5622 kfree(phba->sli4_hba.xri_bmask);
5623 kfree(phba->sli4_hba.xri_ids);
5624 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5625 &phba->sli4_hba.lpfc_xri_blk_list, list) {
5626 list_del_init(&rsrc_blk->list);
5630 case LPFC_RSC_TYPE_FCOE_VFI:
5631 kfree(phba->sli4_hba.vfi_bmask);
5632 kfree(phba->sli4_hba.vfi_ids);
5633 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5634 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5635 &phba->sli4_hba.lpfc_vfi_blk_list, list) {
5636 list_del_init(&rsrc_blk->list);
5640 case LPFC_RSC_TYPE_FCOE_RPI:
5641 /* RPI bitmask and physical id array are cleaned up earlier. */
5642 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5643 &phba->sli4_hba.lpfc_rpi_blk_list, list) {
5644 list_del_init(&rsrc_blk->list);
5652 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5655 mempool_free(mbox, phba->mbox_mem_pool);
5660 * lpfc_sli4_alloc_resource_identifiers - Allocate all SLI4 resource extents.
5661 * @phba: Pointer to HBA context object.
5663 * This function allocates all SLI4 resource identifiers.
5666 lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba *phba)
5668 int i, rc, error = 0;
5669 uint16_t count, base;
5670 unsigned long longs;
5672 if (!phba->sli4_hba.rpi_hdrs_in_use)
5673 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
5674 if (phba->sli4_hba.extents_in_use) {
5676 * The port supports resource extents. The XRI, VPI, VFI, RPI
5677 * resource extent count must be read and allocated before
5678 * provisioning the resource id arrays.
5680 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
5681 LPFC_IDX_RSRC_RDY) {
5683 * Extent-based resources are set - the driver could
5684 * be in a port reset. Figure out if any corrective
5685 * actions need to be taken.
5687 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5688 LPFC_RSC_TYPE_FCOE_VFI);
5691 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5692 LPFC_RSC_TYPE_FCOE_VPI);
5695 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5696 LPFC_RSC_TYPE_FCOE_XRI);
5699 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5700 LPFC_RSC_TYPE_FCOE_RPI);
5705 * It's possible that the number of resources
5706 * provided to this port instance changed between
5707 * resets. Detect this condition and reallocate
5708 * resources. Otherwise, there is no action.
5711 lpfc_printf_log(phba, KERN_INFO,
5712 LOG_MBOX | LOG_INIT,
5713 "2931 Detected extent resource "
5714 "change. Reallocating all "
5716 rc = lpfc_sli4_dealloc_extent(phba,
5717 LPFC_RSC_TYPE_FCOE_VFI);
5718 rc = lpfc_sli4_dealloc_extent(phba,
5719 LPFC_RSC_TYPE_FCOE_VPI);
5720 rc = lpfc_sli4_dealloc_extent(phba,
5721 LPFC_RSC_TYPE_FCOE_XRI);
5722 rc = lpfc_sli4_dealloc_extent(phba,
5723 LPFC_RSC_TYPE_FCOE_RPI);
5728 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
5732 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
5736 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
5740 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
5743 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
5748 * The port does not support resource extents. The XRI, VPI,
5749 * VFI, RPI resource ids were determined from READ_CONFIG.
5750 * Just allocate the bitmasks and provision the resource id
5751 * arrays. If a port reset is active, the resources don't
5752 * need any action - just exit.
5754 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
5755 LPFC_IDX_RSRC_RDY) {
5756 lpfc_sli4_dealloc_resource_identifiers(phba);
5757 lpfc_sli4_remove_rpis(phba);
5760 count = phba->sli4_hba.max_cfg_param.max_rpi;
5762 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5763 "3279 Invalid provisioning of "
5768 base = phba->sli4_hba.max_cfg_param.rpi_base;
5769 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5770 phba->sli4_hba.rpi_bmask = kzalloc(longs *
5771 sizeof(unsigned long),
5773 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5777 phba->sli4_hba.rpi_ids = kzalloc(count *
5780 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5782 goto free_rpi_bmask;
5785 for (i = 0; i < count; i++)
5786 phba->sli4_hba.rpi_ids[i] = base + i;
5789 count = phba->sli4_hba.max_cfg_param.max_vpi;
5791 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5792 "3280 Invalid provisioning of "
5797 base = phba->sli4_hba.max_cfg_param.vpi_base;
5798 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5799 phba->vpi_bmask = kzalloc(longs *
5800 sizeof(unsigned long),
5802 if (unlikely(!phba->vpi_bmask)) {
5806 phba->vpi_ids = kzalloc(count *
5809 if (unlikely(!phba->vpi_ids)) {
5811 goto free_vpi_bmask;
5814 for (i = 0; i < count; i++)
5815 phba->vpi_ids[i] = base + i;
5818 count = phba->sli4_hba.max_cfg_param.max_xri;
5820 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5821 "3281 Invalid provisioning of "
5826 base = phba->sli4_hba.max_cfg_param.xri_base;
5827 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5828 phba->sli4_hba.xri_bmask = kzalloc(longs *
5829 sizeof(unsigned long),
5831 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5835 phba->sli4_hba.max_cfg_param.xri_used = 0;
5836 phba->sli4_hba.xri_ids = kzalloc(count *
5839 if (unlikely(!phba->sli4_hba.xri_ids)) {
5841 goto free_xri_bmask;
5844 for (i = 0; i < count; i++)
5845 phba->sli4_hba.xri_ids[i] = base + i;
5848 count = phba->sli4_hba.max_cfg_param.max_vfi;
5850 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5851 "3282 Invalid provisioning of "
5856 base = phba->sli4_hba.max_cfg_param.vfi_base;
5857 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5858 phba->sli4_hba.vfi_bmask = kzalloc(longs *
5859 sizeof(unsigned long),
5861 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5865 phba->sli4_hba.vfi_ids = kzalloc(count *
5868 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5870 goto free_vfi_bmask;
5873 for (i = 0; i < count; i++)
5874 phba->sli4_hba.vfi_ids[i] = base + i;
5877 * Mark all resources ready. An HBA reset doesn't need
5878 * to reset the initialization.
5880 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
5886 kfree(phba->sli4_hba.vfi_bmask);
5888 kfree(phba->sli4_hba.xri_ids);
5890 kfree(phba->sli4_hba.xri_bmask);
5892 kfree(phba->vpi_ids);
5894 kfree(phba->vpi_bmask);
5896 kfree(phba->sli4_hba.rpi_ids);
5898 kfree(phba->sli4_hba.rpi_bmask);
5904 * lpfc_sli4_dealloc_resource_identifiers - Deallocate all SLI4 resource extents.
5905 * @phba: Pointer to HBA context object.
5907 * This function allocates the number of elements for the specified
5911 lpfc_sli4_dealloc_resource_identifiers(struct lpfc_hba *phba)
5913 if (phba->sli4_hba.extents_in_use) {
5914 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
5915 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
5916 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
5917 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
5919 kfree(phba->vpi_bmask);
5920 phba->sli4_hba.max_cfg_param.vpi_used = 0;
5921 kfree(phba->vpi_ids);
5922 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5923 kfree(phba->sli4_hba.xri_bmask);
5924 kfree(phba->sli4_hba.xri_ids);
5925 kfree(phba->sli4_hba.vfi_bmask);
5926 kfree(phba->sli4_hba.vfi_ids);
5927 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5928 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5935 * lpfc_sli4_get_allocated_extnts - Get the port's allocated extents.
5936 * @phba: Pointer to HBA context object.
5937 * @type: The resource extent type.
5938 * @extnt_count: buffer to hold port extent count response
5939 * @extnt_size: buffer to hold port extent size response.
5941 * This function calls the port to read the host allocated extents
5942 * for a particular type.
5945 lpfc_sli4_get_allocated_extnts(struct lpfc_hba *phba, uint16_t type,
5946 uint16_t *extnt_cnt, uint16_t *extnt_size)
5950 uint16_t curr_blks = 0;
5951 uint32_t req_len, emb_len;
5952 uint32_t alloc_len, mbox_tmo;
5953 struct list_head *blk_list_head;
5954 struct lpfc_rsrc_blks *rsrc_blk;
5956 void *virtaddr = NULL;
5957 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5958 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5959 union lpfc_sli4_cfg_shdr *shdr;
5962 case LPFC_RSC_TYPE_FCOE_VPI:
5963 blk_list_head = &phba->lpfc_vpi_blk_list;
5965 case LPFC_RSC_TYPE_FCOE_XRI:
5966 blk_list_head = &phba->sli4_hba.lpfc_xri_blk_list;
5968 case LPFC_RSC_TYPE_FCOE_VFI:
5969 blk_list_head = &phba->sli4_hba.lpfc_vfi_blk_list;
5971 case LPFC_RSC_TYPE_FCOE_RPI:
5972 blk_list_head = &phba->sli4_hba.lpfc_rpi_blk_list;
5978 /* Count the number of extents currently allocatd for this type. */
5979 list_for_each_entry(rsrc_blk, blk_list_head, list) {
5980 if (curr_blks == 0) {
5982 * The GET_ALLOCATED mailbox does not return the size,
5983 * just the count. The size should be just the size
5984 * stored in the current allocated block and all sizes
5985 * for an extent type are the same so set the return
5988 *extnt_size = rsrc_blk->rsrc_size;
5993 /* Calculate the total requested length of the dma memory. */
5994 req_len = curr_blks * sizeof(uint16_t);
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 LIST_HEAD(prep_sgl_list);
6105 LIST_HEAD(blck_sgl_list);
6106 LIST_HEAD(allc_sgl_list);
6107 LIST_HEAD(post_sgl_list);
6108 LIST_HEAD(free_sgl_list);
6110 spin_lock_irq(&phba->hbalock);
6111 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &allc_sgl_list);
6112 spin_unlock_irq(&phba->hbalock);
6114 total_cnt = phba->sli4_hba.els_xri_cnt;
6115 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
6116 &allc_sgl_list, list) {
6117 list_del_init(&sglq_entry->list);
6119 if ((last_xritag != NO_XRI) &&
6120 (sglq_entry->sli4_xritag != last_xritag + 1)) {
6121 /* a hole in xri block, form a sgl posting block */
6122 list_splice_init(&prep_sgl_list, &blck_sgl_list);
6123 post_cnt = block_cnt - 1;
6124 /* prepare list for next posting block */
6125 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6128 /* prepare list for next posting block */
6129 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6130 /* enough sgls for non-embed sgl mbox command */
6131 if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
6132 list_splice_init(&prep_sgl_list,
6134 post_cnt = block_cnt;
6140 /* keep track of last sgl's xritag */
6141 last_xritag = sglq_entry->sli4_xritag;
6143 /* end of repost sgl list condition for els buffers */
6144 if (num_posted == phba->sli4_hba.els_xri_cnt) {
6145 if (post_cnt == 0) {
6146 list_splice_init(&prep_sgl_list,
6148 post_cnt = block_cnt;
6149 } else if (block_cnt == 1) {
6150 status = lpfc_sli4_post_sgl(phba,
6151 sglq_entry->phys, 0,
6152 sglq_entry->sli4_xritag);
6154 /* successful, put sgl to posted list */
6155 list_add_tail(&sglq_entry->list,
6158 /* Failure, put sgl to free list */
6159 lpfc_printf_log(phba, KERN_WARNING,
6161 "3159 Failed to post els "
6162 "sgl, xritag:x%x\n",
6163 sglq_entry->sli4_xritag);
6164 list_add_tail(&sglq_entry->list,
6171 /* continue until a nembed page worth of sgls */
6175 /* post the els buffer list sgls as a block */
6176 status = lpfc_sli4_post_els_sgl_list(phba, &blck_sgl_list,
6180 /* success, put sgl list to posted sgl list */
6181 list_splice_init(&blck_sgl_list, &post_sgl_list);
6183 /* Failure, put sgl list to free sgl list */
6184 sglq_entry_first = list_first_entry(&blck_sgl_list,
6187 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6188 "3160 Failed to post els sgl-list, "
6190 sglq_entry_first->sli4_xritag,
6191 (sglq_entry_first->sli4_xritag +
6193 list_splice_init(&blck_sgl_list, &free_sgl_list);
6194 total_cnt -= post_cnt;
6197 /* don't reset xirtag due to hole in xri block */
6199 last_xritag = NO_XRI;
6201 /* reset els sgl post count for next round of posting */
6204 /* update the number of XRIs posted for ELS */
6205 phba->sli4_hba.els_xri_cnt = total_cnt;
6207 /* free the els sgls failed to post */
6208 lpfc_free_sgl_list(phba, &free_sgl_list);
6210 /* push els sgls posted to the availble list */
6211 if (!list_empty(&post_sgl_list)) {
6212 spin_lock_irq(&phba->hbalock);
6213 list_splice_init(&post_sgl_list,
6214 &phba->sli4_hba.lpfc_sgl_list);
6215 spin_unlock_irq(&phba->hbalock);
6217 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6218 "3161 Failure to post els sgl to port.\n");
6225 * lpfc_sli4_hba_setup - SLI4 device intialization PCI function
6226 * @phba: Pointer to HBA context object.
6228 * This function is the main SLI4 device intialization PCI function. This
6229 * function is called by the HBA intialization code, HBA reset code and
6230 * HBA error attention handler code. Caller is not required to hold any
6234 lpfc_sli4_hba_setup(struct lpfc_hba *phba)
6237 LPFC_MBOXQ_t *mboxq;
6238 struct lpfc_mqe *mqe;
6241 uint32_t ftr_rsp = 0;
6242 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
6243 struct lpfc_vport *vport = phba->pport;
6244 struct lpfc_dmabuf *mp;
6246 /* Perform a PCI function reset to start from clean */
6247 rc = lpfc_pci_function_reset(phba);
6251 /* Check the HBA Host Status Register for readyness */
6252 rc = lpfc_sli4_post_status_check(phba);
6256 spin_lock_irq(&phba->hbalock);
6257 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
6258 spin_unlock_irq(&phba->hbalock);
6262 * Allocate a single mailbox container for initializing the
6265 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6269 /* Issue READ_REV to collect vpd and FW information. */
6270 vpd_size = SLI4_PAGE_SIZE;
6271 vpd = kzalloc(vpd_size, GFP_KERNEL);
6277 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
6283 mqe = &mboxq->u.mqe;
6284 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
6285 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev))
6286 phba->hba_flag |= HBA_FCOE_MODE;
6288 phba->hba_flag &= ~HBA_FCOE_MODE;
6290 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
6292 phba->hba_flag |= HBA_FIP_SUPPORT;
6294 phba->hba_flag &= ~HBA_FIP_SUPPORT;
6296 phba->hba_flag &= ~HBA_FCP_IOQ_FLUSH;
6298 if (phba->sli_rev != LPFC_SLI_REV4) {
6299 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6300 "0376 READ_REV Error. SLI Level %d "
6301 "FCoE enabled %d\n",
6302 phba->sli_rev, phba->hba_flag & HBA_FCOE_MODE);
6309 * Continue initialization with default values even if driver failed
6310 * to read FCoE param config regions, only read parameters if the
6313 if (phba->hba_flag & HBA_FCOE_MODE &&
6314 lpfc_sli4_read_fcoe_params(phba))
6315 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_INIT,
6316 "2570 Failed to read FCoE parameters\n");
6319 * Retrieve sli4 device physical port name, failure of doing it
6320 * is considered as non-fatal.
6322 rc = lpfc_sli4_retrieve_pport_name(phba);
6324 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6325 "3080 Successful retrieving SLI4 device "
6326 "physical port name: %s.\n", phba->Port);
6329 * Evaluate the read rev and vpd data. Populate the driver
6330 * state with the results. If this routine fails, the failure
6331 * is not fatal as the driver will use generic values.
6333 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
6334 if (unlikely(!rc)) {
6335 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6336 "0377 Error %d parsing vpd. "
6337 "Using defaults.\n", rc);
6342 /* Save information as VPD data */
6343 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
6344 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
6345 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
6346 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
6348 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
6350 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
6352 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
6354 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
6355 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
6356 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
6357 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
6358 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
6359 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
6360 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6361 "(%d):0380 READ_REV Status x%x "
6362 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
6363 mboxq->vport ? mboxq->vport->vpi : 0,
6364 bf_get(lpfc_mqe_status, mqe),
6365 phba->vpd.rev.opFwName,
6366 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
6367 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
6369 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */
6370 rc = (phba->sli4_hba.max_cfg_param.max_xri >> 3);
6371 if (phba->pport->cfg_lun_queue_depth > rc) {
6372 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6373 "3362 LUN queue depth changed from %d to %d\n",
6374 phba->pport->cfg_lun_queue_depth, rc);
6375 phba->pport->cfg_lun_queue_depth = rc;
6380 * Discover the port's supported feature set and match it against the
6383 lpfc_request_features(phba, mboxq);
6384 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6391 * The port must support FCP initiator mode as this is the
6392 * only mode running in the host.
6394 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
6395 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6396 "0378 No support for fcpi mode.\n");
6399 if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh, &mqe->un.req_ftrs))
6400 phba->sli3_options |= LPFC_SLI4_PERFH_ENABLED;
6402 phba->sli3_options &= ~LPFC_SLI4_PERFH_ENABLED;
6404 * If the port cannot support the host's requested features
6405 * then turn off the global config parameters to disable the
6406 * feature in the driver. This is not a fatal error.
6408 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
6409 if (phba->cfg_enable_bg) {
6410 if (bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))
6411 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
6416 if (phba->max_vpi && phba->cfg_enable_npiv &&
6417 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6421 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6422 "0379 Feature Mismatch Data: x%08x %08x "
6423 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
6424 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
6425 phba->cfg_enable_npiv, phba->max_vpi);
6426 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
6427 phba->cfg_enable_bg = 0;
6428 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6429 phba->cfg_enable_npiv = 0;
6432 /* These SLI3 features are assumed in SLI4 */
6433 spin_lock_irq(&phba->hbalock);
6434 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
6435 spin_unlock_irq(&phba->hbalock);
6438 * Allocate all resources (xri,rpi,vpi,vfi) now. Subsequent
6439 * calls depends on these resources to complete port setup.
6441 rc = lpfc_sli4_alloc_resource_identifiers(phba);
6443 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6444 "2920 Failed to alloc Resource IDs "
6449 /* Read the port's service parameters. */
6450 rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
6452 phba->link_state = LPFC_HBA_ERROR;
6457 mboxq->vport = vport;
6458 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6459 mp = (struct lpfc_dmabuf *) mboxq->context1;
6460 if (rc == MBX_SUCCESS) {
6461 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
6466 * This memory was allocated by the lpfc_read_sparam routine. Release
6467 * it to the mbuf pool.
6469 lpfc_mbuf_free(phba, mp->virt, mp->phys);
6471 mboxq->context1 = NULL;
6473 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6474 "0382 READ_SPARAM command failed "
6475 "status %d, mbxStatus x%x\n",
6476 rc, bf_get(lpfc_mqe_status, mqe));
6477 phba->link_state = LPFC_HBA_ERROR;
6482 lpfc_update_vport_wwn(vport);
6484 /* Update the fc_host data structures with new wwn. */
6485 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
6486 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
6488 /* update host els and scsi xri-sgl sizes and mappings */
6489 rc = lpfc_sli4_xri_sgl_update(phba);
6491 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6492 "1400 Failed to update xri-sgl size and "
6493 "mapping: %d\n", rc);
6497 /* register the els sgl pool to the port */
6498 rc = lpfc_sli4_repost_els_sgl_list(phba);
6500 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6501 "0582 Error %d during els sgl post "
6507 /* register the allocated scsi sgl pool to the port */
6508 rc = lpfc_sli4_repost_scsi_sgl_list(phba);
6510 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6511 "0383 Error %d during scsi sgl post "
6513 /* Some Scsi buffers were moved to the abort scsi list */
6514 /* A pci function reset will repost them */
6519 /* Post the rpi header region to the device. */
6520 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
6522 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6523 "0393 Error %d during rpi post operation\n",
6528 lpfc_sli4_node_prep(phba);
6530 /* Create all the SLI4 queues */
6531 rc = lpfc_sli4_queue_create(phba);
6533 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6534 "3089 Failed to allocate queues\n");
6536 goto out_stop_timers;
6538 /* Set up all the queues to the device */
6539 rc = lpfc_sli4_queue_setup(phba);
6541 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6542 "0381 Error %d during queue setup.\n ", rc);
6543 goto out_destroy_queue;
6546 /* Arm the CQs and then EQs on device */
6547 lpfc_sli4_arm_cqeq_intr(phba);
6549 /* Indicate device interrupt mode */
6550 phba->sli4_hba.intr_enable = 1;
6552 /* Allow asynchronous mailbox command to go through */
6553 spin_lock_irq(&phba->hbalock);
6554 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
6555 spin_unlock_irq(&phba->hbalock);
6557 /* Post receive buffers to the device */
6558 lpfc_sli4_rb_setup(phba);
6560 /* Reset HBA FCF states after HBA reset */
6561 phba->fcf.fcf_flag = 0;
6562 phba->fcf.current_rec.flag = 0;
6564 /* Start the ELS watchdog timer */
6565 mod_timer(&vport->els_tmofunc,
6566 jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov * 2)));
6568 /* Start heart beat timer */
6569 mod_timer(&phba->hb_tmofunc,
6570 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
6571 phba->hb_outstanding = 0;
6572 phba->last_completion_time = jiffies;
6574 /* Start error attention (ERATT) polling timer */
6575 mod_timer(&phba->eratt_poll,
6576 jiffies + msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
6578 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
6579 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
6580 rc = pci_enable_pcie_error_reporting(phba->pcidev);
6582 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6583 "2829 This device supports "
6584 "Advanced Error Reporting (AER)\n");
6585 spin_lock_irq(&phba->hbalock);
6586 phba->hba_flag |= HBA_AER_ENABLED;
6587 spin_unlock_irq(&phba->hbalock);
6589 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6590 "2830 This device does not support "
6591 "Advanced Error Reporting (AER)\n");
6592 phba->cfg_aer_support = 0;
6597 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
6599 * The FC Port needs to register FCFI (index 0)
6601 lpfc_reg_fcfi(phba, mboxq);
6602 mboxq->vport = phba->pport;
6603 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6604 if (rc != MBX_SUCCESS)
6605 goto out_unset_queue;
6607 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi,
6608 &mboxq->u.mqe.un.reg_fcfi);
6610 /* Check if the port is configured to be disabled */
6611 lpfc_sli_read_link_ste(phba);
6615 * The port is ready, set the host's link state to LINK_DOWN
6616 * in preparation for link interrupts.
6618 spin_lock_irq(&phba->hbalock);
6619 phba->link_state = LPFC_LINK_DOWN;
6620 spin_unlock_irq(&phba->hbalock);
6621 if (!(phba->hba_flag & HBA_FCOE_MODE) &&
6622 (phba->hba_flag & LINK_DISABLED)) {
6623 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
6624 "3103 Adapter Link is disabled.\n");
6625 lpfc_down_link(phba, mboxq);
6626 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6627 if (rc != MBX_SUCCESS) {
6628 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
6629 "3104 Adapter failed to issue "
6630 "DOWN_LINK mbox cmd, rc:x%x\n", rc);
6631 goto out_unset_queue;
6633 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
6634 /* don't perform init_link on SLI4 FC port loopback test */
6635 if (!(phba->link_flag & LS_LOOPBACK_MODE)) {
6636 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
6638 goto out_unset_queue;
6641 mempool_free(mboxq, phba->mbox_mem_pool);
6644 /* Unset all the queues set up in this routine when error out */
6645 lpfc_sli4_queue_unset(phba);
6647 lpfc_sli4_queue_destroy(phba);
6649 lpfc_stop_hba_timers(phba);
6651 mempool_free(mboxq, phba->mbox_mem_pool);
6656 * lpfc_mbox_timeout - Timeout call back function for mbox timer
6657 * @ptr: context object - pointer to hba structure.
6659 * This is the callback function for mailbox timer. The mailbox
6660 * timer is armed when a new mailbox command is issued and the timer
6661 * is deleted when the mailbox complete. The function is called by
6662 * the kernel timer code when a mailbox does not complete within
6663 * expected time. This function wakes up the worker thread to
6664 * process the mailbox timeout and returns. All the processing is
6665 * done by the worker thread function lpfc_mbox_timeout_handler.
6668 lpfc_mbox_timeout(unsigned long ptr)
6670 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
6671 unsigned long iflag;
6672 uint32_t tmo_posted;
6674 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
6675 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
6677 phba->pport->work_port_events |= WORKER_MBOX_TMO;
6678 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
6681 lpfc_worker_wake_up(phba);
6686 * lpfc_sli4_mbox_completions_pending - check to see if any mailbox completions
6688 * @phba: Pointer to HBA context object.
6690 * This function checks if any mailbox completions are present on the mailbox
6694 lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba)
6698 struct lpfc_queue *mcq;
6699 struct lpfc_mcqe *mcqe;
6700 bool pending_completions = false;
6702 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
6705 /* Check for completions on mailbox completion queue */
6707 mcq = phba->sli4_hba.mbx_cq;
6708 idx = mcq->hba_index;
6709 while (bf_get_le32(lpfc_cqe_valid, mcq->qe[idx].cqe)) {
6710 mcqe = (struct lpfc_mcqe *)mcq->qe[idx].cqe;
6711 if (bf_get_le32(lpfc_trailer_completed, mcqe) &&
6712 (!bf_get_le32(lpfc_trailer_async, mcqe))) {
6713 pending_completions = true;
6716 idx = (idx + 1) % mcq->entry_count;
6717 if (mcq->hba_index == idx)
6720 return pending_completions;
6725 * lpfc_sli4_process_missed_mbox_completions - process mbox completions
6727 * @phba: Pointer to HBA context object.
6729 * For sli4, it is possible to miss an interrupt. As such mbox completions
6730 * maybe missed causing erroneous mailbox timeouts to occur. This function
6731 * checks to see if mbox completions are on the mailbox completion queue
6732 * and will process all the completions associated with the eq for the
6733 * mailbox completion queue.
6736 lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba)
6740 struct lpfc_queue *fpeq = NULL;
6741 struct lpfc_eqe *eqe;
6744 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
6747 /* Find the eq associated with the mcq */
6749 if (phba->sli4_hba.hba_eq)
6750 for (eqidx = 0; eqidx < phba->cfg_fcp_io_channel; eqidx++)
6751 if (phba->sli4_hba.hba_eq[eqidx]->queue_id ==
6752 phba->sli4_hba.mbx_cq->assoc_qid) {
6753 fpeq = phba->sli4_hba.hba_eq[eqidx];
6759 /* Turn off interrupts from this EQ */
6761 lpfc_sli4_eq_clr_intr(fpeq);
6763 /* Check to see if a mbox completion is pending */
6765 mbox_pending = lpfc_sli4_mbox_completions_pending(phba);
6768 * If a mbox completion is pending, process all the events on EQ
6769 * associated with the mbox completion queue (this could include
6770 * mailbox commands, async events, els commands, receive queue data
6775 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
6776 lpfc_sli4_hba_handle_eqe(phba, eqe, eqidx);
6777 fpeq->EQ_processed++;
6780 /* Always clear and re-arm the EQ */
6782 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
6784 return mbox_pending;
6789 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
6790 * @phba: Pointer to HBA context object.
6792 * This function is called from worker thread when a mailbox command times out.
6793 * The caller is not required to hold any locks. This function will reset the
6794 * HBA and recover all the pending commands.
6797 lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
6799 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
6800 MAILBOX_t *mb = &pmbox->u.mb;
6801 struct lpfc_sli *psli = &phba->sli;
6803 /* If the mailbox completed, process the completion and return */
6804 if (lpfc_sli4_process_missed_mbox_completions(phba))
6807 /* Check the pmbox pointer first. There is a race condition
6808 * between the mbox timeout handler getting executed in the
6809 * worklist and the mailbox actually completing. When this
6810 * race condition occurs, the mbox_active will be NULL.
6812 spin_lock_irq(&phba->hbalock);
6813 if (pmbox == NULL) {
6814 lpfc_printf_log(phba, KERN_WARNING,
6816 "0353 Active Mailbox cleared - mailbox timeout "
6818 spin_unlock_irq(&phba->hbalock);
6822 /* Mbox cmd <mbxCommand> timeout */
6823 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6824 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
6826 phba->pport->port_state,
6828 phba->sli.mbox_active);
6829 spin_unlock_irq(&phba->hbalock);
6831 /* Setting state unknown so lpfc_sli_abort_iocb_ring
6832 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
6833 * it to fail all outstanding SCSI IO.
6835 spin_lock_irq(&phba->pport->work_port_lock);
6836 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
6837 spin_unlock_irq(&phba->pport->work_port_lock);
6838 spin_lock_irq(&phba->hbalock);
6839 phba->link_state = LPFC_LINK_UNKNOWN;
6840 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
6841 spin_unlock_irq(&phba->hbalock);
6843 lpfc_sli_abort_fcp_rings(phba);
6845 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6846 "0345 Resetting board due to mailbox timeout\n");
6848 /* Reset the HBA device */
6849 lpfc_reset_hba(phba);
6853 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
6854 * @phba: Pointer to HBA context object.
6855 * @pmbox: Pointer to mailbox object.
6856 * @flag: Flag indicating how the mailbox need to be processed.
6858 * This function is called by discovery code and HBA management code
6859 * to submit a mailbox command to firmware with SLI-3 interface spec. This
6860 * function gets the hbalock to protect the data structures.
6861 * The mailbox command can be submitted in polling mode, in which case
6862 * this function will wait in a polling loop for the completion of the
6864 * If the mailbox is submitted in no_wait mode (not polling) the
6865 * function will submit the command and returns immediately without waiting
6866 * for the mailbox completion. The no_wait is supported only when HBA
6867 * is in SLI2/SLI3 mode - interrupts are enabled.
6868 * The SLI interface allows only one mailbox pending at a time. If the
6869 * mailbox is issued in polling mode and there is already a mailbox
6870 * pending, then the function will return an error. If the mailbox is issued
6871 * in NO_WAIT mode and there is a mailbox pending already, the function
6872 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
6873 * The sli layer owns the mailbox object until the completion of mailbox
6874 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
6875 * return codes the caller owns the mailbox command after the return of
6879 lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
6883 struct lpfc_sli *psli = &phba->sli;
6884 uint32_t status, evtctr;
6885 uint32_t ha_copy, hc_copy;
6887 unsigned long timeout;
6888 unsigned long drvr_flag = 0;
6889 uint32_t word0, ldata;
6890 void __iomem *to_slim;
6891 int processing_queue = 0;
6893 spin_lock_irqsave(&phba->hbalock, drvr_flag);
6895 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6896 /* processing mbox queue from intr_handler */
6897 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
6898 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6901 processing_queue = 1;
6902 pmbox = lpfc_mbox_get(phba);
6904 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6909 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
6910 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
6912 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6913 lpfc_printf_log(phba, KERN_ERR,
6914 LOG_MBOX | LOG_VPORT,
6915 "1806 Mbox x%x failed. No vport\n",
6916 pmbox->u.mb.mbxCommand);
6918 goto out_not_finished;
6922 /* If the PCI channel is in offline state, do not post mbox. */
6923 if (unlikely(pci_channel_offline(phba->pcidev))) {
6924 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6925 goto out_not_finished;
6928 /* If HBA has a deferred error attention, fail the iocb. */
6929 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
6930 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6931 goto out_not_finished;
6937 status = MBX_SUCCESS;
6939 if (phba->link_state == LPFC_HBA_ERROR) {
6940 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6942 /* Mbox command <mbxCommand> cannot issue */
6943 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6944 "(%d):0311 Mailbox command x%x cannot "
6945 "issue Data: x%x x%x\n",
6946 pmbox->vport ? pmbox->vport->vpi : 0,
6947 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
6948 goto out_not_finished;
6951 if (mbx->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT) {
6952 if (lpfc_readl(phba->HCregaddr, &hc_copy) ||
6953 !(hc_copy & HC_MBINT_ENA)) {
6954 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6955 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6956 "(%d):2528 Mailbox command x%x cannot "
6957 "issue Data: x%x x%x\n",
6958 pmbox->vport ? pmbox->vport->vpi : 0,
6959 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
6960 goto out_not_finished;
6964 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
6965 /* Polling for a mbox command when another one is already active
6966 * is not allowed in SLI. Also, the driver must have established
6967 * SLI2 mode to queue and process multiple mbox commands.
6970 if (flag & MBX_POLL) {
6971 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6973 /* Mbox command <mbxCommand> cannot issue */
6974 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6975 "(%d):2529 Mailbox command x%x "
6976 "cannot issue Data: x%x x%x\n",
6977 pmbox->vport ? pmbox->vport->vpi : 0,
6978 pmbox->u.mb.mbxCommand,
6979 psli->sli_flag, flag);
6980 goto out_not_finished;
6983 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
6984 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6985 /* Mbox command <mbxCommand> cannot issue */
6986 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6987 "(%d):2530 Mailbox command x%x "
6988 "cannot issue Data: x%x x%x\n",
6989 pmbox->vport ? pmbox->vport->vpi : 0,
6990 pmbox->u.mb.mbxCommand,
6991 psli->sli_flag, flag);
6992 goto out_not_finished;
6995 /* Another mailbox command is still being processed, queue this
6996 * command to be processed later.
6998 lpfc_mbox_put(phba, pmbox);
7000 /* Mbox cmd issue - BUSY */
7001 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7002 "(%d):0308 Mbox cmd issue - BUSY Data: "
7003 "x%x x%x x%x x%x\n",
7004 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
7005 mbx->mbxCommand, phba->pport->port_state,
7006 psli->sli_flag, flag);
7008 psli->slistat.mbox_busy++;
7009 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7012 lpfc_debugfs_disc_trc(pmbox->vport,
7013 LPFC_DISC_TRC_MBOX_VPORT,
7014 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
7015 (uint32_t)mbx->mbxCommand,
7016 mbx->un.varWords[0], mbx->un.varWords[1]);
7019 lpfc_debugfs_disc_trc(phba->pport,
7021 "MBOX Bsy: cmd:x%x mb:x%x x%x",
7022 (uint32_t)mbx->mbxCommand,
7023 mbx->un.varWords[0], mbx->un.varWords[1]);
7029 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7031 /* If we are not polling, we MUST be in SLI2 mode */
7032 if (flag != MBX_POLL) {
7033 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
7034 (mbx->mbxCommand != MBX_KILL_BOARD)) {
7035 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7036 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7037 /* Mbox command <mbxCommand> cannot issue */
7038 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7039 "(%d):2531 Mailbox command x%x "
7040 "cannot issue Data: x%x x%x\n",
7041 pmbox->vport ? pmbox->vport->vpi : 0,
7042 pmbox->u.mb.mbxCommand,
7043 psli->sli_flag, flag);
7044 goto out_not_finished;
7046 /* timeout active mbox command */
7047 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
7049 mod_timer(&psli->mbox_tmo, jiffies + timeout);
7052 /* Mailbox cmd <cmd> issue */
7053 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7054 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
7056 pmbox->vport ? pmbox->vport->vpi : 0,
7057 mbx->mbxCommand, phba->pport->port_state,
7058 psli->sli_flag, flag);
7060 if (mbx->mbxCommand != MBX_HEARTBEAT) {
7062 lpfc_debugfs_disc_trc(pmbox->vport,
7063 LPFC_DISC_TRC_MBOX_VPORT,
7064 "MBOX Send vport: cmd:x%x mb:x%x x%x",
7065 (uint32_t)mbx->mbxCommand,
7066 mbx->un.varWords[0], mbx->un.varWords[1]);
7069 lpfc_debugfs_disc_trc(phba->pport,
7071 "MBOX Send: cmd:x%x mb:x%x x%x",
7072 (uint32_t)mbx->mbxCommand,
7073 mbx->un.varWords[0], mbx->un.varWords[1]);
7077 psli->slistat.mbox_cmd++;
7078 evtctr = psli->slistat.mbox_event;
7080 /* next set own bit for the adapter and copy over command word */
7081 mbx->mbxOwner = OWN_CHIP;
7083 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7084 /* Populate mbox extension offset word. */
7085 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) {
7086 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
7087 = (uint8_t *)phba->mbox_ext
7088 - (uint8_t *)phba->mbox;
7091 /* Copy the mailbox extension data */
7092 if (pmbox->in_ext_byte_len && pmbox->context2) {
7093 lpfc_sli_pcimem_bcopy(pmbox->context2,
7094 (uint8_t *)phba->mbox_ext,
7095 pmbox->in_ext_byte_len);
7097 /* Copy command data to host SLIM area */
7098 lpfc_sli_pcimem_bcopy(mbx, phba->mbox, MAILBOX_CMD_SIZE);
7100 /* Populate mbox extension offset word. */
7101 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len)
7102 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
7103 = MAILBOX_HBA_EXT_OFFSET;
7105 /* Copy the mailbox extension data */
7106 if (pmbox->in_ext_byte_len && pmbox->context2) {
7107 lpfc_memcpy_to_slim(phba->MBslimaddr +
7108 MAILBOX_HBA_EXT_OFFSET,
7109 pmbox->context2, pmbox->in_ext_byte_len);
7112 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
7113 /* copy command data into host mbox for cmpl */
7114 lpfc_sli_pcimem_bcopy(mbx, phba->mbox, MAILBOX_CMD_SIZE);
7117 /* First copy mbox command data to HBA SLIM, skip past first
7119 to_slim = phba->MBslimaddr + sizeof (uint32_t);
7120 lpfc_memcpy_to_slim(to_slim, &mbx->un.varWords[0],
7121 MAILBOX_CMD_SIZE - sizeof (uint32_t));
7123 /* Next copy over first word, with mbxOwner set */
7124 ldata = *((uint32_t *)mbx);
7125 to_slim = phba->MBslimaddr;
7126 writel(ldata, to_slim);
7127 readl(to_slim); /* flush */
7129 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
7130 /* switch over to host mailbox */
7131 psli->sli_flag |= LPFC_SLI_ACTIVE;
7139 /* Set up reference to mailbox command */
7140 psli->mbox_active = pmbox;
7141 /* Interrupt board to do it */
7142 writel(CA_MBATT, phba->CAregaddr);
7143 readl(phba->CAregaddr); /* flush */
7144 /* Don't wait for it to finish, just return */
7148 /* Set up null reference to mailbox command */
7149 psli->mbox_active = NULL;
7150 /* Interrupt board to do it */
7151 writel(CA_MBATT, phba->CAregaddr);
7152 readl(phba->CAregaddr); /* flush */
7154 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7155 /* First read mbox status word */
7156 word0 = *((uint32_t *)phba->mbox);
7157 word0 = le32_to_cpu(word0);
7159 /* First read mbox status word */
7160 if (lpfc_readl(phba->MBslimaddr, &word0)) {
7161 spin_unlock_irqrestore(&phba->hbalock,
7163 goto out_not_finished;
7167 /* Read the HBA Host Attention Register */
7168 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
7169 spin_unlock_irqrestore(&phba->hbalock,
7171 goto out_not_finished;
7173 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
7176 /* Wait for command to complete */
7177 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
7178 (!(ha_copy & HA_MBATT) &&
7179 (phba->link_state > LPFC_WARM_START))) {
7180 if (time_after(jiffies, timeout)) {
7181 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7182 spin_unlock_irqrestore(&phba->hbalock,
7184 goto out_not_finished;
7187 /* Check if we took a mbox interrupt while we were
7189 if (((word0 & OWN_CHIP) != OWN_CHIP)
7190 && (evtctr != psli->slistat.mbox_event))
7194 spin_unlock_irqrestore(&phba->hbalock,
7197 spin_lock_irqsave(&phba->hbalock, drvr_flag);
7200 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7201 /* First copy command data */
7202 word0 = *((uint32_t *)phba->mbox);
7203 word0 = le32_to_cpu(word0);
7204 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
7207 /* Check real SLIM for any errors */
7208 slimword0 = readl(phba->MBslimaddr);
7209 slimmb = (MAILBOX_t *) & slimword0;
7210 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
7211 && slimmb->mbxStatus) {
7218 /* First copy command data */
7219 word0 = readl(phba->MBslimaddr);
7221 /* Read the HBA Host Attention Register */
7222 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
7223 spin_unlock_irqrestore(&phba->hbalock,
7225 goto out_not_finished;
7229 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7230 /* copy results back to user */
7231 lpfc_sli_pcimem_bcopy(phba->mbox, mbx, MAILBOX_CMD_SIZE);
7232 /* Copy the mailbox extension data */
7233 if (pmbox->out_ext_byte_len && pmbox->context2) {
7234 lpfc_sli_pcimem_bcopy(phba->mbox_ext,
7236 pmbox->out_ext_byte_len);
7239 /* First copy command data */
7240 lpfc_memcpy_from_slim(mbx, phba->MBslimaddr,
7242 /* Copy the mailbox extension data */
7243 if (pmbox->out_ext_byte_len && pmbox->context2) {
7244 lpfc_memcpy_from_slim(pmbox->context2,
7246 MAILBOX_HBA_EXT_OFFSET,
7247 pmbox->out_ext_byte_len);
7251 writel(HA_MBATT, phba->HAregaddr);
7252 readl(phba->HAregaddr); /* flush */
7254 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7255 status = mbx->mbxStatus;
7258 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7262 if (processing_queue) {
7263 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
7264 lpfc_mbox_cmpl_put(phba, pmbox);
7266 return MBX_NOT_FINISHED;
7270 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
7271 * @phba: Pointer to HBA context object.
7273 * The function blocks the posting of SLI4 asynchronous mailbox commands from
7274 * the driver internal pending mailbox queue. It will then try to wait out the
7275 * possible outstanding mailbox command before return.
7278 * 0 - the outstanding mailbox command completed; otherwise, the wait for
7279 * the outstanding mailbox command timed out.
7282 lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
7284 struct lpfc_sli *psli = &phba->sli;
7286 unsigned long timeout = 0;
7288 /* Mark the asynchronous mailbox command posting as blocked */
7289 spin_lock_irq(&phba->hbalock);
7290 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
7291 /* Determine how long we might wait for the active mailbox
7292 * command to be gracefully completed by firmware.
7294 if (phba->sli.mbox_active)
7295 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
7296 phba->sli.mbox_active) *
7298 spin_unlock_irq(&phba->hbalock);
7300 /* Make sure the mailbox is really active */
7302 lpfc_sli4_process_missed_mbox_completions(phba);
7304 /* Wait for the outstnading mailbox command to complete */
7305 while (phba->sli.mbox_active) {
7306 /* Check active mailbox complete status every 2ms */
7308 if (time_after(jiffies, timeout)) {
7309 /* Timeout, marked the outstanding cmd not complete */
7315 /* Can not cleanly block async mailbox command, fails it */
7317 spin_lock_irq(&phba->hbalock);
7318 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7319 spin_unlock_irq(&phba->hbalock);
7325 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
7326 * @phba: Pointer to HBA context object.
7328 * The function unblocks and resume posting of SLI4 asynchronous mailbox
7329 * commands from the driver internal pending mailbox queue. It makes sure
7330 * that there is no outstanding mailbox command before resuming posting
7331 * asynchronous mailbox commands. If, for any reason, there is outstanding
7332 * mailbox command, it will try to wait it out before resuming asynchronous
7333 * mailbox command posting.
7336 lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
7338 struct lpfc_sli *psli = &phba->sli;
7340 spin_lock_irq(&phba->hbalock);
7341 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7342 /* Asynchronous mailbox posting is not blocked, do nothing */
7343 spin_unlock_irq(&phba->hbalock);
7347 /* Outstanding synchronous mailbox command is guaranteed to be done,
7348 * successful or timeout, after timing-out the outstanding mailbox
7349 * command shall always be removed, so just unblock posting async
7350 * mailbox command and resume
7352 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7353 spin_unlock_irq(&phba->hbalock);
7355 /* wake up worker thread to post asynchronlous mailbox command */
7356 lpfc_worker_wake_up(phba);
7360 * lpfc_sli4_wait_bmbx_ready - Wait for bootstrap mailbox register ready
7361 * @phba: Pointer to HBA context object.
7362 * @mboxq: Pointer to mailbox object.
7364 * The function waits for the bootstrap mailbox register ready bit from
7365 * port for twice the regular mailbox command timeout value.
7367 * 0 - no timeout on waiting for bootstrap mailbox register ready.
7368 * MBXERR_ERROR - wait for bootstrap mailbox register timed out.
7371 lpfc_sli4_wait_bmbx_ready(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7374 unsigned long timeout;
7375 struct lpfc_register bmbx_reg;
7377 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mboxq)
7381 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
7382 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
7386 if (time_after(jiffies, timeout))
7387 return MBXERR_ERROR;
7388 } while (!db_ready);
7394 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
7395 * @phba: Pointer to HBA context object.
7396 * @mboxq: Pointer to mailbox object.
7398 * The function posts a mailbox to the port. The mailbox is expected
7399 * to be comletely filled in and ready for the port to operate on it.
7400 * This routine executes a synchronous completion operation on the
7401 * mailbox by polling for its completion.
7403 * The caller must not be holding any locks when calling this routine.
7406 * MBX_SUCCESS - mailbox posted successfully
7407 * Any of the MBX error values.
7410 lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7412 int rc = MBX_SUCCESS;
7413 unsigned long iflag;
7414 uint32_t mcqe_status;
7416 struct lpfc_sli *psli = &phba->sli;
7417 struct lpfc_mqe *mb = &mboxq->u.mqe;
7418 struct lpfc_bmbx_create *mbox_rgn;
7419 struct dma_address *dma_address;
7422 * Only one mailbox can be active to the bootstrap mailbox region
7423 * at a time and there is no queueing provided.
7425 spin_lock_irqsave(&phba->hbalock, iflag);
7426 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7427 spin_unlock_irqrestore(&phba->hbalock, iflag);
7428 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7429 "(%d):2532 Mailbox command x%x (x%x/x%x) "
7430 "cannot issue Data: x%x x%x\n",
7431 mboxq->vport ? mboxq->vport->vpi : 0,
7432 mboxq->u.mb.mbxCommand,
7433 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7434 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7435 psli->sli_flag, MBX_POLL);
7436 return MBXERR_ERROR;
7438 /* The server grabs the token and owns it until release */
7439 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7440 phba->sli.mbox_active = mboxq;
7441 spin_unlock_irqrestore(&phba->hbalock, iflag);
7443 /* wait for bootstrap mbox register for readyness */
7444 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7449 * Initialize the bootstrap memory region to avoid stale data areas
7450 * in the mailbox post. Then copy the caller's mailbox contents to
7451 * the bmbx mailbox region.
7453 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
7454 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
7455 lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
7456 sizeof(struct lpfc_mqe));
7458 /* Post the high mailbox dma address to the port and wait for ready. */
7459 dma_address = &phba->sli4_hba.bmbx.dma_address;
7460 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
7462 /* wait for bootstrap mbox register for hi-address write done */
7463 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7467 /* Post the low mailbox dma address to the port. */
7468 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
7470 /* wait for bootstrap mbox register for low address write done */
7471 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7476 * Read the CQ to ensure the mailbox has completed.
7477 * If so, update the mailbox status so that the upper layers
7478 * can complete the request normally.
7480 lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
7481 sizeof(struct lpfc_mqe));
7482 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
7483 lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
7484 sizeof(struct lpfc_mcqe));
7485 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
7487 * When the CQE status indicates a failure and the mailbox status
7488 * indicates success then copy the CQE status into the mailbox status
7489 * (and prefix it with x4000).
7491 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
7492 if (bf_get(lpfc_mqe_status, mb) == MBX_SUCCESS)
7493 bf_set(lpfc_mqe_status, mb,
7494 (LPFC_MBX_ERROR_RANGE | mcqe_status));
7497 lpfc_sli4_swap_str(phba, mboxq);
7499 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7500 "(%d):0356 Mailbox cmd x%x (x%x/x%x) Status x%x "
7501 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
7502 " x%x x%x CQ: x%x x%x x%x x%x\n",
7503 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
7504 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7505 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7506 bf_get(lpfc_mqe_status, mb),
7507 mb->un.mb_words[0], mb->un.mb_words[1],
7508 mb->un.mb_words[2], mb->un.mb_words[3],
7509 mb->un.mb_words[4], mb->un.mb_words[5],
7510 mb->un.mb_words[6], mb->un.mb_words[7],
7511 mb->un.mb_words[8], mb->un.mb_words[9],
7512 mb->un.mb_words[10], mb->un.mb_words[11],
7513 mb->un.mb_words[12], mboxq->mcqe.word0,
7514 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
7515 mboxq->mcqe.trailer);
7517 /* We are holding the token, no needed for lock when release */
7518 spin_lock_irqsave(&phba->hbalock, iflag);
7519 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7520 phba->sli.mbox_active = NULL;
7521 spin_unlock_irqrestore(&phba->hbalock, iflag);
7526 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
7527 * @phba: Pointer to HBA context object.
7528 * @pmbox: Pointer to mailbox object.
7529 * @flag: Flag indicating how the mailbox need to be processed.
7531 * This function is called by discovery code and HBA management code to submit
7532 * a mailbox command to firmware with SLI-4 interface spec.
7534 * Return codes the caller owns the mailbox command after the return of the
7538 lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
7541 struct lpfc_sli *psli = &phba->sli;
7542 unsigned long iflags;
7545 /* dump from issue mailbox command if setup */
7546 lpfc_idiag_mbxacc_dump_issue_mbox(phba, &mboxq->u.mb);
7548 rc = lpfc_mbox_dev_check(phba);
7550 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7551 "(%d):2544 Mailbox command x%x (x%x/x%x) "
7552 "cannot issue Data: x%x x%x\n",
7553 mboxq->vport ? mboxq->vport->vpi : 0,
7554 mboxq->u.mb.mbxCommand,
7555 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7556 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7557 psli->sli_flag, flag);
7558 goto out_not_finished;
7561 /* Detect polling mode and jump to a handler */
7562 if (!phba->sli4_hba.intr_enable) {
7563 if (flag == MBX_POLL)
7564 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
7567 if (rc != MBX_SUCCESS)
7568 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7569 "(%d):2541 Mailbox command x%x "
7570 "(x%x/x%x) failure: "
7571 "mqe_sta: x%x mcqe_sta: x%x/x%x "
7573 mboxq->vport ? mboxq->vport->vpi : 0,
7574 mboxq->u.mb.mbxCommand,
7575 lpfc_sli_config_mbox_subsys_get(phba,
7577 lpfc_sli_config_mbox_opcode_get(phba,
7579 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
7580 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
7581 bf_get(lpfc_mcqe_ext_status,
7583 psli->sli_flag, flag);
7585 } else if (flag == MBX_POLL) {
7586 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7587 "(%d):2542 Try to issue mailbox command "
7588 "x%x (x%x/x%x) synchronously ahead of async"
7589 "mailbox command queue: x%x x%x\n",
7590 mboxq->vport ? mboxq->vport->vpi : 0,
7591 mboxq->u.mb.mbxCommand,
7592 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7593 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7594 psli->sli_flag, flag);
7595 /* Try to block the asynchronous mailbox posting */
7596 rc = lpfc_sli4_async_mbox_block(phba);
7598 /* Successfully blocked, now issue sync mbox cmd */
7599 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
7600 if (rc != MBX_SUCCESS)
7601 lpfc_printf_log(phba, KERN_WARNING,
7603 "(%d):2597 Sync Mailbox command "
7604 "x%x (x%x/x%x) failure: "
7605 "mqe_sta: x%x mcqe_sta: x%x/x%x "
7607 mboxq->vport ? mboxq->vport->vpi : 0,
7608 mboxq->u.mb.mbxCommand,
7609 lpfc_sli_config_mbox_subsys_get(phba,
7611 lpfc_sli_config_mbox_opcode_get(phba,
7613 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
7614 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
7615 bf_get(lpfc_mcqe_ext_status,
7617 psli->sli_flag, flag);
7618 /* Unblock the async mailbox posting afterward */
7619 lpfc_sli4_async_mbox_unblock(phba);
7624 /* Now, interrupt mode asynchrous mailbox command */
7625 rc = lpfc_mbox_cmd_check(phba, mboxq);
7627 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7628 "(%d):2543 Mailbox command x%x (x%x/x%x) "
7629 "cannot issue Data: x%x x%x\n",
7630 mboxq->vport ? mboxq->vport->vpi : 0,
7631 mboxq->u.mb.mbxCommand,
7632 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7633 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7634 psli->sli_flag, flag);
7635 goto out_not_finished;
7638 /* Put the mailbox command to the driver internal FIFO */
7639 psli->slistat.mbox_busy++;
7640 spin_lock_irqsave(&phba->hbalock, iflags);
7641 lpfc_mbox_put(phba, mboxq);
7642 spin_unlock_irqrestore(&phba->hbalock, iflags);
7643 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7644 "(%d):0354 Mbox cmd issue - Enqueue Data: "
7645 "x%x (x%x/x%x) x%x x%x x%x\n",
7646 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
7647 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
7648 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7649 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7650 phba->pport->port_state,
7651 psli->sli_flag, MBX_NOWAIT);
7652 /* Wake up worker thread to transport mailbox command from head */
7653 lpfc_worker_wake_up(phba);
7658 return MBX_NOT_FINISHED;
7662 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
7663 * @phba: Pointer to HBA context object.
7665 * This function is called by worker thread to send a mailbox command to
7666 * SLI4 HBA firmware.
7670 lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
7672 struct lpfc_sli *psli = &phba->sli;
7673 LPFC_MBOXQ_t *mboxq;
7674 int rc = MBX_SUCCESS;
7675 unsigned long iflags;
7676 struct lpfc_mqe *mqe;
7679 /* Check interrupt mode before post async mailbox command */
7680 if (unlikely(!phba->sli4_hba.intr_enable))
7681 return MBX_NOT_FINISHED;
7683 /* Check for mailbox command service token */
7684 spin_lock_irqsave(&phba->hbalock, iflags);
7685 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7686 spin_unlock_irqrestore(&phba->hbalock, iflags);
7687 return MBX_NOT_FINISHED;
7689 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7690 spin_unlock_irqrestore(&phba->hbalock, iflags);
7691 return MBX_NOT_FINISHED;
7693 if (unlikely(phba->sli.mbox_active)) {
7694 spin_unlock_irqrestore(&phba->hbalock, iflags);
7695 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7696 "0384 There is pending active mailbox cmd\n");
7697 return MBX_NOT_FINISHED;
7699 /* Take the mailbox command service token */
7700 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7702 /* Get the next mailbox command from head of queue */
7703 mboxq = lpfc_mbox_get(phba);
7705 /* If no more mailbox command waiting for post, we're done */
7707 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7708 spin_unlock_irqrestore(&phba->hbalock, iflags);
7711 phba->sli.mbox_active = mboxq;
7712 spin_unlock_irqrestore(&phba->hbalock, iflags);
7714 /* Check device readiness for posting mailbox command */
7715 rc = lpfc_mbox_dev_check(phba);
7717 /* Driver clean routine will clean up pending mailbox */
7718 goto out_not_finished;
7720 /* Prepare the mbox command to be posted */
7721 mqe = &mboxq->u.mqe;
7722 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
7724 /* Start timer for the mbox_tmo and log some mailbox post messages */
7725 mod_timer(&psli->mbox_tmo, (jiffies +
7726 msecs_to_jiffies(1000 * lpfc_mbox_tmo_val(phba, mboxq))));
7728 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7729 "(%d):0355 Mailbox cmd x%x (x%x/x%x) issue Data: "
7731 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
7732 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7733 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7734 phba->pport->port_state, psli->sli_flag);
7736 if (mbx_cmnd != MBX_HEARTBEAT) {
7738 lpfc_debugfs_disc_trc(mboxq->vport,
7739 LPFC_DISC_TRC_MBOX_VPORT,
7740 "MBOX Send vport: cmd:x%x mb:x%x x%x",
7741 mbx_cmnd, mqe->un.mb_words[0],
7742 mqe->un.mb_words[1]);
7744 lpfc_debugfs_disc_trc(phba->pport,
7746 "MBOX Send: cmd:x%x mb:x%x x%x",
7747 mbx_cmnd, mqe->un.mb_words[0],
7748 mqe->un.mb_words[1]);
7751 psli->slistat.mbox_cmd++;
7753 /* Post the mailbox command to the port */
7754 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
7755 if (rc != MBX_SUCCESS) {
7756 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7757 "(%d):2533 Mailbox command x%x (x%x/x%x) "
7758 "cannot issue Data: x%x x%x\n",
7759 mboxq->vport ? mboxq->vport->vpi : 0,
7760 mboxq->u.mb.mbxCommand,
7761 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7762 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7763 psli->sli_flag, MBX_NOWAIT);
7764 goto out_not_finished;
7770 spin_lock_irqsave(&phba->hbalock, iflags);
7771 if (phba->sli.mbox_active) {
7772 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
7773 __lpfc_mbox_cmpl_put(phba, mboxq);
7774 /* Release the token */
7775 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7776 phba->sli.mbox_active = NULL;
7778 spin_unlock_irqrestore(&phba->hbalock, iflags);
7780 return MBX_NOT_FINISHED;
7784 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
7785 * @phba: Pointer to HBA context object.
7786 * @pmbox: Pointer to mailbox object.
7787 * @flag: Flag indicating how the mailbox need to be processed.
7789 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
7790 * the API jump table function pointer from the lpfc_hba struct.
7792 * Return codes the caller owns the mailbox command after the return of the
7796 lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
7798 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
7802 * lpfc_mbox_api_table_setup - Set up mbox api function jump table
7803 * @phba: The hba struct for which this call is being executed.
7804 * @dev_grp: The HBA PCI-Device group number.
7806 * This routine sets up the mbox interface API function jump table in @phba
7808 * Returns: 0 - success, -ENODEV - failure.
7811 lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
7815 case LPFC_PCI_DEV_LP:
7816 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
7817 phba->lpfc_sli_handle_slow_ring_event =
7818 lpfc_sli_handle_slow_ring_event_s3;
7819 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
7820 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
7821 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
7823 case LPFC_PCI_DEV_OC:
7824 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
7825 phba->lpfc_sli_handle_slow_ring_event =
7826 lpfc_sli_handle_slow_ring_event_s4;
7827 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
7828 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
7829 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
7832 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7833 "1420 Invalid HBA PCI-device group: 0x%x\n",
7842 * __lpfc_sli_ringtx_put - Add an iocb to the txq
7843 * @phba: Pointer to HBA context object.
7844 * @pring: Pointer to driver SLI ring object.
7845 * @piocb: Pointer to address of newly added command iocb.
7847 * This function is called with hbalock held to add a command
7848 * iocb to the txq when SLI layer cannot submit the command iocb
7852 __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7853 struct lpfc_iocbq *piocb)
7855 /* Insert the caller's iocb in the txq tail for later processing. */
7856 list_add_tail(&piocb->list, &pring->txq);
7860 * lpfc_sli_next_iocb - Get the next iocb in the txq
7861 * @phba: Pointer to HBA context object.
7862 * @pring: Pointer to driver SLI ring object.
7863 * @piocb: Pointer to address of newly added command iocb.
7865 * This function is called with hbalock held before a new
7866 * iocb is submitted to the firmware. This function checks
7867 * txq to flush the iocbs in txq to Firmware before
7868 * submitting new iocbs to the Firmware.
7869 * If there are iocbs in the txq which need to be submitted
7870 * to firmware, lpfc_sli_next_iocb returns the first element
7871 * of the txq after dequeuing it from txq.
7872 * If there is no iocb in the txq then the function will return
7873 * *piocb and *piocb is set to NULL. Caller needs to check
7874 * *piocb to find if there are more commands in the txq.
7876 static struct lpfc_iocbq *
7877 lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7878 struct lpfc_iocbq **piocb)
7880 struct lpfc_iocbq * nextiocb;
7882 nextiocb = lpfc_sli_ringtx_get(phba, pring);
7892 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
7893 * @phba: Pointer to HBA context object.
7894 * @ring_number: SLI ring number to issue iocb on.
7895 * @piocb: Pointer to command iocb.
7896 * @flag: Flag indicating if this command can be put into txq.
7898 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
7899 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
7900 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
7901 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
7902 * this function allows only iocbs for posting buffers. This function finds
7903 * next available slot in the command ring and posts the command to the
7904 * available slot and writes the port attention register to request HBA start
7905 * processing new iocb. If there is no slot available in the ring and
7906 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
7907 * the function returns IOCB_BUSY.
7909 * This function is called with hbalock held. The function will return success
7910 * after it successfully submit the iocb to firmware or after adding to the
7914 __lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
7915 struct lpfc_iocbq *piocb, uint32_t flag)
7917 struct lpfc_iocbq *nextiocb;
7919 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
7921 if (piocb->iocb_cmpl && (!piocb->vport) &&
7922 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
7923 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
7924 lpfc_printf_log(phba, KERN_ERR,
7925 LOG_SLI | LOG_VPORT,
7926 "1807 IOCB x%x failed. No vport\n",
7927 piocb->iocb.ulpCommand);
7933 /* If the PCI channel is in offline state, do not post iocbs. */
7934 if (unlikely(pci_channel_offline(phba->pcidev)))
7937 /* If HBA has a deferred error attention, fail the iocb. */
7938 if (unlikely(phba->hba_flag & DEFER_ERATT))
7942 * We should never get an IOCB if we are in a < LINK_DOWN state
7944 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
7948 * Check to see if we are blocking IOCB processing because of a
7949 * outstanding event.
7951 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
7954 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
7956 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
7957 * can be issued if the link is not up.
7959 switch (piocb->iocb.ulpCommand) {
7960 case CMD_GEN_REQUEST64_CR:
7961 case CMD_GEN_REQUEST64_CX:
7962 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
7963 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
7964 FC_RCTL_DD_UNSOL_CMD) ||
7965 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
7966 MENLO_TRANSPORT_TYPE))
7970 case CMD_QUE_RING_BUF_CN:
7971 case CMD_QUE_RING_BUF64_CN:
7973 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
7974 * completion, iocb_cmpl MUST be 0.
7976 if (piocb->iocb_cmpl)
7977 piocb->iocb_cmpl = NULL;
7979 case CMD_CREATE_XRI_CR:
7980 case CMD_CLOSE_XRI_CN:
7981 case CMD_CLOSE_XRI_CX:
7988 * For FCP commands, we must be in a state where we can process link
7991 } else if (unlikely(pring->ringno == phba->sli.fcp_ring &&
7992 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
7996 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
7997 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
7998 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
8001 lpfc_sli_update_ring(phba, pring);
8003 lpfc_sli_update_full_ring(phba, pring);
8006 return IOCB_SUCCESS;
8011 pring->stats.iocb_cmd_delay++;
8015 if (!(flag & SLI_IOCB_RET_IOCB)) {
8016 __lpfc_sli_ringtx_put(phba, pring, piocb);
8017 return IOCB_SUCCESS;
8024 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
8025 * @phba: Pointer to HBA context object.
8026 * @piocb: Pointer to command iocb.
8027 * @sglq: Pointer to the scatter gather queue object.
8029 * This routine converts the bpl or bde that is in the IOCB
8030 * to a sgl list for the sli4 hardware. The physical address
8031 * of the bpl/bde is converted back to a virtual address.
8032 * If the IOCB contains a BPL then the list of BDE's is
8033 * converted to sli4_sge's. If the IOCB contains a single
8034 * BDE then it is converted to a single sli_sge.
8035 * The IOCB is still in cpu endianess so the contents of
8036 * the bpl can be used without byte swapping.
8038 * Returns valid XRI = Success, NO_XRI = Failure.
8041 lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
8042 struct lpfc_sglq *sglq)
8044 uint16_t xritag = NO_XRI;
8045 struct ulp_bde64 *bpl = NULL;
8046 struct ulp_bde64 bde;
8047 struct sli4_sge *sgl = NULL;
8048 struct lpfc_dmabuf *dmabuf;
8052 uint32_t offset = 0; /* accumulated offset in the sg request list */
8053 int inbound = 0; /* number of sg reply entries inbound from firmware */
8055 if (!piocbq || !sglq)
8058 sgl = (struct sli4_sge *)sglq->sgl;
8059 icmd = &piocbq->iocb;
8060 if (icmd->ulpCommand == CMD_XMIT_BLS_RSP64_CX)
8061 return sglq->sli4_xritag;
8062 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
8063 numBdes = icmd->un.genreq64.bdl.bdeSize /
8064 sizeof(struct ulp_bde64);
8065 /* The addrHigh and addrLow fields within the IOCB
8066 * have not been byteswapped yet so there is no
8067 * need to swap them back.
8069 if (piocbq->context3)
8070 dmabuf = (struct lpfc_dmabuf *)piocbq->context3;
8074 bpl = (struct ulp_bde64 *)dmabuf->virt;
8078 for (i = 0; i < numBdes; i++) {
8079 /* Should already be byte swapped. */
8080 sgl->addr_hi = bpl->addrHigh;
8081 sgl->addr_lo = bpl->addrLow;
8083 sgl->word2 = le32_to_cpu(sgl->word2);
8084 if ((i+1) == numBdes)
8085 bf_set(lpfc_sli4_sge_last, sgl, 1);
8087 bf_set(lpfc_sli4_sge_last, sgl, 0);
8088 /* swap the size field back to the cpu so we
8089 * can assign it to the sgl.
8091 bde.tus.w = le32_to_cpu(bpl->tus.w);
8092 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
8093 /* The offsets in the sgl need to be accumulated
8094 * separately for the request and reply lists.
8095 * The request is always first, the reply follows.
8097 if (piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) {
8098 /* add up the reply sg entries */
8099 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
8101 /* first inbound? reset the offset */
8104 bf_set(lpfc_sli4_sge_offset, sgl, offset);
8105 bf_set(lpfc_sli4_sge_type, sgl,
8106 LPFC_SGE_TYPE_DATA);
8107 offset += bde.tus.f.bdeSize;
8109 sgl->word2 = cpu_to_le32(sgl->word2);
8113 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
8114 /* The addrHigh and addrLow fields of the BDE have not
8115 * been byteswapped yet so they need to be swapped
8116 * before putting them in the sgl.
8119 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
8121 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
8122 sgl->word2 = le32_to_cpu(sgl->word2);
8123 bf_set(lpfc_sli4_sge_last, sgl, 1);
8124 sgl->word2 = cpu_to_le32(sgl->word2);
8126 cpu_to_le32(icmd->un.genreq64.bdl.bdeSize);
8128 return sglq->sli4_xritag;
8132 * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution
8133 * @phba: Pointer to HBA context object.
8135 * This routine performs a roundrobin SCSI command to SLI4 FCP WQ index
8136 * distribution. This is called by __lpfc_sli_issue_iocb_s4() with the hbalock
8139 * Return: index into SLI4 fast-path FCP queue index.
8141 static inline uint32_t
8142 lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba)
8144 struct lpfc_vector_map_info *cpup;
8147 if (phba->cfg_fcp_io_sched == LPFC_FCP_SCHED_BY_CPU
8148 && phba->cfg_fcp_io_channel > 1) {
8149 cpu = smp_processor_id();
8150 if (cpu < phba->sli4_hba.num_present_cpu) {
8151 cpup = phba->sli4_hba.cpu_map;
8153 return cpup->channel_id;
8157 chann = atomic_add_return(1, &phba->fcp_qidx);
8158 chann = (chann % phba->cfg_fcp_io_channel);
8163 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
8164 * @phba: Pointer to HBA context object.
8165 * @piocb: Pointer to command iocb.
8166 * @wqe: Pointer to the work queue entry.
8168 * This routine converts the iocb command to its Work Queue Entry
8169 * equivalent. The wqe pointer should not have any fields set when
8170 * this routine is called because it will memcpy over them.
8171 * This routine does not set the CQ_ID or the WQEC bits in the
8174 * Returns: 0 = Success, IOCB_ERROR = Failure.
8177 lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
8178 union lpfc_wqe *wqe)
8180 uint32_t xmit_len = 0, total_len = 0;
8184 uint8_t command_type = ELS_COMMAND_NON_FIP;
8187 uint16_t abrt_iotag;
8188 struct lpfc_iocbq *abrtiocbq;
8189 struct ulp_bde64 *bpl = NULL;
8190 uint32_t els_id = LPFC_ELS_ID_DEFAULT;
8192 struct ulp_bde64 bde;
8193 struct lpfc_nodelist *ndlp;
8197 fip = phba->hba_flag & HBA_FIP_SUPPORT;
8198 /* The fcp commands will set command type */
8199 if (iocbq->iocb_flag & LPFC_IO_FCP)
8200 command_type = FCP_COMMAND;
8201 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
8202 command_type = ELS_COMMAND_FIP;
8204 command_type = ELS_COMMAND_NON_FIP;
8206 /* Some of the fields are in the right position already */
8207 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
8208 abort_tag = (uint32_t) iocbq->iotag;
8209 xritag = iocbq->sli4_xritag;
8210 wqe->generic.wqe_com.word7 = 0; /* The ct field has moved so reset */
8211 wqe->generic.wqe_com.word10 = 0;
8212 /* words0-2 bpl convert bde */
8213 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
8214 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
8215 sizeof(struct ulp_bde64);
8216 bpl = (struct ulp_bde64 *)
8217 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
8221 /* Should already be byte swapped. */
8222 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
8223 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
8224 /* swap the size field back to the cpu so we
8225 * can assign it to the sgl.
8227 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
8228 xmit_len = wqe->generic.bde.tus.f.bdeSize;
8230 for (i = 0; i < numBdes; i++) {
8231 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
8232 total_len += bde.tus.f.bdeSize;
8235 xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
8237 iocbq->iocb.ulpIoTag = iocbq->iotag;
8238 cmnd = iocbq->iocb.ulpCommand;
8240 switch (iocbq->iocb.ulpCommand) {
8241 case CMD_ELS_REQUEST64_CR:
8242 if (iocbq->iocb_flag & LPFC_IO_LIBDFC)
8243 ndlp = iocbq->context_un.ndlp;
8245 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8246 if (!iocbq->iocb.ulpLe) {
8247 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8248 "2007 Only Limited Edition cmd Format"
8249 " supported 0x%x\n",
8250 iocbq->iocb.ulpCommand);
8254 wqe->els_req.payload_len = xmit_len;
8255 /* Els_reguest64 has a TMO */
8256 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
8257 iocbq->iocb.ulpTimeout);
8258 /* Need a VF for word 4 set the vf bit*/
8259 bf_set(els_req64_vf, &wqe->els_req, 0);
8260 /* And a VFID for word 12 */
8261 bf_set(els_req64_vfid, &wqe->els_req, 0);
8262 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
8263 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8264 iocbq->iocb.ulpContext);
8265 bf_set(wqe_ct, &wqe->els_req.wqe_com, ct);
8266 bf_set(wqe_pu, &wqe->els_req.wqe_com, 0);
8267 /* CCP CCPE PV PRI in word10 were set in the memcpy */
8268 if (command_type == ELS_COMMAND_FIP)
8269 els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
8270 >> LPFC_FIP_ELS_ID_SHIFT);
8271 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
8272 iocbq->context2)->virt);
8273 if_type = bf_get(lpfc_sli_intf_if_type,
8274 &phba->sli4_hba.sli_intf);
8275 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8276 if (pcmd && (*pcmd == ELS_CMD_FLOGI ||
8277 *pcmd == ELS_CMD_SCR ||
8278 *pcmd == ELS_CMD_FDISC ||
8279 *pcmd == ELS_CMD_LOGO ||
8280 *pcmd == ELS_CMD_PLOGI)) {
8281 bf_set(els_req64_sp, &wqe->els_req, 1);
8282 bf_set(els_req64_sid, &wqe->els_req,
8283 iocbq->vport->fc_myDID);
8284 if ((*pcmd == ELS_CMD_FLOGI) &&
8285 !(phba->fc_topology ==
8286 LPFC_TOPOLOGY_LOOP))
8287 bf_set(els_req64_sid, &wqe->els_req, 0);
8288 bf_set(wqe_ct, &wqe->els_req.wqe_com, 1);
8289 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8290 phba->vpi_ids[iocbq->vport->vpi]);
8291 } else if (pcmd && iocbq->context1) {
8292 bf_set(wqe_ct, &wqe->els_req.wqe_com, 0);
8293 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8294 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8297 bf_set(wqe_temp_rpi, &wqe->els_req.wqe_com,
8298 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8299 bf_set(wqe_els_id, &wqe->els_req.wqe_com, els_id);
8300 bf_set(wqe_dbde, &wqe->els_req.wqe_com, 1);
8301 bf_set(wqe_iod, &wqe->els_req.wqe_com, LPFC_WQE_IOD_READ);
8302 bf_set(wqe_qosd, &wqe->els_req.wqe_com, 1);
8303 bf_set(wqe_lenloc, &wqe->els_req.wqe_com, LPFC_WQE_LENLOC_NONE);
8304 bf_set(wqe_ebde_cnt, &wqe->els_req.wqe_com, 0);
8305 wqe->els_req.max_response_payload_len = total_len - xmit_len;
8307 case CMD_XMIT_SEQUENCE64_CX:
8308 bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com,
8309 iocbq->iocb.un.ulpWord[3]);
8310 bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com,
8311 iocbq->iocb.unsli3.rcvsli3.ox_id);
8312 /* The entire sequence is transmitted for this IOCB */
8313 xmit_len = total_len;
8314 cmnd = CMD_XMIT_SEQUENCE64_CR;
8315 if (phba->link_flag & LS_LOOPBACK_MODE)
8316 bf_set(wqe_xo, &wqe->xmit_sequence.wge_ctl, 1);
8317 case CMD_XMIT_SEQUENCE64_CR:
8318 /* word3 iocb=io_tag32 wqe=reserved */
8319 wqe->xmit_sequence.rsvd3 = 0;
8320 /* word4 relative_offset memcpy */
8321 /* word5 r_ctl/df_ctl memcpy */
8322 bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0);
8323 bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1);
8324 bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com,
8325 LPFC_WQE_IOD_WRITE);
8326 bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com,
8327 LPFC_WQE_LENLOC_WORD12);
8328 bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0);
8329 wqe->xmit_sequence.xmit_len = xmit_len;
8330 command_type = OTHER_COMMAND;
8332 case CMD_XMIT_BCAST64_CN:
8333 /* word3 iocb=iotag32 wqe=seq_payload_len */
8334 wqe->xmit_bcast64.seq_payload_len = xmit_len;
8335 /* word4 iocb=rsvd wqe=rsvd */
8336 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
8337 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
8338 bf_set(wqe_ct, &wqe->xmit_bcast64.wqe_com,
8339 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8340 bf_set(wqe_dbde, &wqe->xmit_bcast64.wqe_com, 1);
8341 bf_set(wqe_iod, &wqe->xmit_bcast64.wqe_com, LPFC_WQE_IOD_WRITE);
8342 bf_set(wqe_lenloc, &wqe->xmit_bcast64.wqe_com,
8343 LPFC_WQE_LENLOC_WORD3);
8344 bf_set(wqe_ebde_cnt, &wqe->xmit_bcast64.wqe_com, 0);
8346 case CMD_FCP_IWRITE64_CR:
8347 command_type = FCP_COMMAND_DATA_OUT;
8348 /* word3 iocb=iotag wqe=payload_offset_len */
8349 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8350 bf_set(payload_offset_len, &wqe->fcp_iwrite,
8351 xmit_len + sizeof(struct fcp_rsp));
8352 bf_set(cmd_buff_len, &wqe->fcp_iwrite,
8354 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8355 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8356 bf_set(wqe_erp, &wqe->fcp_iwrite.wqe_com,
8357 iocbq->iocb.ulpFCP2Rcvy);
8358 bf_set(wqe_lnk, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpXS);
8359 /* Always open the exchange */
8360 bf_set(wqe_xc, &wqe->fcp_iwrite.wqe_com, 0);
8361 bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE);
8362 bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com,
8363 LPFC_WQE_LENLOC_WORD4);
8364 bf_set(wqe_ebde_cnt, &wqe->fcp_iwrite.wqe_com, 0);
8365 bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpPU);
8366 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 1);
8367 if (iocbq->iocb_flag & LPFC_IO_OAS) {
8368 bf_set(wqe_oas, &wqe->fcp_iwrite.wqe_com, 1);
8369 if (phba->cfg_XLanePriority) {
8370 bf_set(wqe_ccpe, &wqe->fcp_iwrite.wqe_com, 1);
8371 bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
8372 (phba->cfg_XLanePriority << 1));
8376 case CMD_FCP_IREAD64_CR:
8377 /* word3 iocb=iotag wqe=payload_offset_len */
8378 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8379 bf_set(payload_offset_len, &wqe->fcp_iread,
8380 xmit_len + sizeof(struct fcp_rsp));
8381 bf_set(cmd_buff_len, &wqe->fcp_iread,
8383 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8384 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8385 bf_set(wqe_erp, &wqe->fcp_iread.wqe_com,
8386 iocbq->iocb.ulpFCP2Rcvy);
8387 bf_set(wqe_lnk, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpXS);
8388 /* Always open the exchange */
8389 bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
8390 bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ);
8391 bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com,
8392 LPFC_WQE_LENLOC_WORD4);
8393 bf_set(wqe_ebde_cnt, &wqe->fcp_iread.wqe_com, 0);
8394 bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpPU);
8395 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 1);
8396 if (iocbq->iocb_flag & LPFC_IO_OAS) {
8397 bf_set(wqe_oas, &wqe->fcp_iread.wqe_com, 1);
8398 if (phba->cfg_XLanePriority) {
8399 bf_set(wqe_ccpe, &wqe->fcp_iread.wqe_com, 1);
8400 bf_set(wqe_ccp, &wqe->fcp_iread.wqe_com,
8401 (phba->cfg_XLanePriority << 1));
8405 case CMD_FCP_ICMND64_CR:
8406 /* word3 iocb=iotag wqe=payload_offset_len */
8407 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8408 bf_set(payload_offset_len, &wqe->fcp_icmd,
8409 xmit_len + sizeof(struct fcp_rsp));
8410 bf_set(cmd_buff_len, &wqe->fcp_icmd,
8412 /* word3 iocb=IO_TAG wqe=reserved */
8413 bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0);
8414 /* Always open the exchange */
8415 bf_set(wqe_xc, &wqe->fcp_icmd.wqe_com, 0);
8416 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 1);
8417 bf_set(wqe_iod, &wqe->fcp_icmd.wqe_com, LPFC_WQE_IOD_WRITE);
8418 bf_set(wqe_qosd, &wqe->fcp_icmd.wqe_com, 1);
8419 bf_set(wqe_lenloc, &wqe->fcp_icmd.wqe_com,
8420 LPFC_WQE_LENLOC_NONE);
8421 bf_set(wqe_ebde_cnt, &wqe->fcp_icmd.wqe_com, 0);
8422 bf_set(wqe_erp, &wqe->fcp_icmd.wqe_com,
8423 iocbq->iocb.ulpFCP2Rcvy);
8424 if (iocbq->iocb_flag & LPFC_IO_OAS) {
8425 bf_set(wqe_oas, &wqe->fcp_icmd.wqe_com, 1);
8426 if (phba->cfg_XLanePriority) {
8427 bf_set(wqe_ccpe, &wqe->fcp_icmd.wqe_com, 1);
8428 bf_set(wqe_ccp, &wqe->fcp_icmd.wqe_com,
8429 (phba->cfg_XLanePriority << 1));
8433 case CMD_GEN_REQUEST64_CR:
8434 /* For this command calculate the xmit length of the
8438 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
8439 sizeof(struct ulp_bde64);
8440 for (i = 0; i < numBdes; i++) {
8441 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
8442 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
8444 xmit_len += bde.tus.f.bdeSize;
8446 /* word3 iocb=IO_TAG wqe=request_payload_len */
8447 wqe->gen_req.request_payload_len = xmit_len;
8448 /* word4 iocb=parameter wqe=relative_offset memcpy */
8449 /* word5 [rctl, type, df_ctl, la] copied in memcpy */
8450 /* word6 context tag copied in memcpy */
8451 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
8452 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
8453 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8454 "2015 Invalid CT %x command 0x%x\n",
8455 ct, iocbq->iocb.ulpCommand);
8458 bf_set(wqe_ct, &wqe->gen_req.wqe_com, 0);
8459 bf_set(wqe_tmo, &wqe->gen_req.wqe_com, iocbq->iocb.ulpTimeout);
8460 bf_set(wqe_pu, &wqe->gen_req.wqe_com, iocbq->iocb.ulpPU);
8461 bf_set(wqe_dbde, &wqe->gen_req.wqe_com, 1);
8462 bf_set(wqe_iod, &wqe->gen_req.wqe_com, LPFC_WQE_IOD_READ);
8463 bf_set(wqe_qosd, &wqe->gen_req.wqe_com, 1);
8464 bf_set(wqe_lenloc, &wqe->gen_req.wqe_com, LPFC_WQE_LENLOC_NONE);
8465 bf_set(wqe_ebde_cnt, &wqe->gen_req.wqe_com, 0);
8466 wqe->gen_req.max_response_payload_len = total_len - xmit_len;
8467 command_type = OTHER_COMMAND;
8469 case CMD_XMIT_ELS_RSP64_CX:
8470 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8471 /* words0-2 BDE memcpy */
8472 /* word3 iocb=iotag32 wqe=response_payload_len */
8473 wqe->xmit_els_rsp.response_payload_len = xmit_len;
8475 wqe->xmit_els_rsp.word4 = 0;
8476 /* word5 iocb=rsvd wge=did */
8477 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
8478 iocbq->iocb.un.xseq64.xmit_els_remoteID);
8480 if_type = bf_get(lpfc_sli_intf_if_type,
8481 &phba->sli4_hba.sli_intf);
8482 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8483 if (iocbq->vport->fc_flag & FC_PT2PT) {
8484 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
8485 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
8486 iocbq->vport->fc_myDID);
8487 if (iocbq->vport->fc_myDID == Fabric_DID) {
8489 &wqe->xmit_els_rsp.wqe_dest, 0);
8493 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com,
8494 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8495 bf_set(wqe_pu, &wqe->xmit_els_rsp.wqe_com, iocbq->iocb.ulpPU);
8496 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
8497 iocbq->iocb.unsli3.rcvsli3.ox_id);
8498 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
8499 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
8500 phba->vpi_ids[iocbq->vport->vpi]);
8501 bf_set(wqe_dbde, &wqe->xmit_els_rsp.wqe_com, 1);
8502 bf_set(wqe_iod, &wqe->xmit_els_rsp.wqe_com, LPFC_WQE_IOD_WRITE);
8503 bf_set(wqe_qosd, &wqe->xmit_els_rsp.wqe_com, 1);
8504 bf_set(wqe_lenloc, &wqe->xmit_els_rsp.wqe_com,
8505 LPFC_WQE_LENLOC_WORD3);
8506 bf_set(wqe_ebde_cnt, &wqe->xmit_els_rsp.wqe_com, 0);
8507 bf_set(wqe_rsp_temp_rpi, &wqe->xmit_els_rsp,
8508 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8509 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
8510 iocbq->context2)->virt);
8511 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
8512 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
8513 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
8514 iocbq->vport->fc_myDID);
8515 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com, 1);
8516 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
8517 phba->vpi_ids[phba->pport->vpi]);
8519 command_type = OTHER_COMMAND;
8521 case CMD_CLOSE_XRI_CN:
8522 case CMD_ABORT_XRI_CN:
8523 case CMD_ABORT_XRI_CX:
8524 /* words 0-2 memcpy should be 0 rserved */
8525 /* port will send abts */
8526 abrt_iotag = iocbq->iocb.un.acxri.abortContextTag;
8527 if (abrt_iotag != 0 && abrt_iotag <= phba->sli.last_iotag) {
8528 abrtiocbq = phba->sli.iocbq_lookup[abrt_iotag];
8529 fip = abrtiocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK;
8533 if ((iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN) || fip)
8535 * The link is down, or the command was ELS_FIP
8536 * so the fw does not need to send abts
8539 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
8541 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
8542 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
8543 /* word5 iocb=CONTEXT_TAG|IO_TAG wqe=reserved */
8544 wqe->abort_cmd.rsrvd5 = 0;
8545 bf_set(wqe_ct, &wqe->abort_cmd.wqe_com,
8546 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8547 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
8549 * The abort handler will send us CMD_ABORT_XRI_CN or
8550 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
8552 bf_set(wqe_cmnd, &wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
8553 bf_set(wqe_qosd, &wqe->abort_cmd.wqe_com, 1);
8554 bf_set(wqe_lenloc, &wqe->abort_cmd.wqe_com,
8555 LPFC_WQE_LENLOC_NONE);
8556 cmnd = CMD_ABORT_XRI_CX;
8557 command_type = OTHER_COMMAND;
8560 case CMD_XMIT_BLS_RSP64_CX:
8561 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8562 /* As BLS ABTS RSP WQE is very different from other WQEs,
8563 * we re-construct this WQE here based on information in
8564 * iocbq from scratch.
8566 memset(wqe, 0, sizeof(union lpfc_wqe));
8567 /* OX_ID is invariable to who sent ABTS to CT exchange */
8568 bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
8569 bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_rsp));
8570 if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_rsp) ==
8571 LPFC_ABTS_UNSOL_INT) {
8572 /* ABTS sent by initiator to CT exchange, the
8573 * RX_ID field will be filled with the newly
8574 * allocated responder XRI.
8576 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
8577 iocbq->sli4_xritag);
8579 /* ABTS sent by responder to CT exchange, the
8580 * RX_ID field will be filled with the responder
8583 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
8584 bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_rsp));
8586 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
8587 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
8590 bf_set(wqe_els_did, &wqe->xmit_bls_rsp.wqe_dest,
8592 bf_set(xmit_bls_rsp64_temprpi, &wqe->xmit_bls_rsp,
8593 iocbq->iocb.ulpContext);
8594 bf_set(wqe_ct, &wqe->xmit_bls_rsp.wqe_com, 1);
8595 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
8596 phba->vpi_ids[phba->pport->vpi]);
8597 bf_set(wqe_qosd, &wqe->xmit_bls_rsp.wqe_com, 1);
8598 bf_set(wqe_lenloc, &wqe->xmit_bls_rsp.wqe_com,
8599 LPFC_WQE_LENLOC_NONE);
8600 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
8601 command_type = OTHER_COMMAND;
8602 if (iocbq->iocb.un.xseq64.w5.hcsw.Rctl == FC_RCTL_BA_RJT) {
8603 bf_set(xmit_bls_rsp64_rjt_vspec, &wqe->xmit_bls_rsp,
8604 bf_get(lpfc_vndr_code, &iocbq->iocb.un.bls_rsp));
8605 bf_set(xmit_bls_rsp64_rjt_expc, &wqe->xmit_bls_rsp,
8606 bf_get(lpfc_rsn_expln, &iocbq->iocb.un.bls_rsp));
8607 bf_set(xmit_bls_rsp64_rjt_rsnc, &wqe->xmit_bls_rsp,
8608 bf_get(lpfc_rsn_code, &iocbq->iocb.un.bls_rsp));
8612 case CMD_XRI_ABORTED_CX:
8613 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
8614 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
8615 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
8616 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
8617 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
8619 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8620 "2014 Invalid command 0x%x\n",
8621 iocbq->iocb.ulpCommand);
8626 if (iocbq->iocb_flag & LPFC_IO_DIF_PASS)
8627 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_PASSTHRU);
8628 else if (iocbq->iocb_flag & LPFC_IO_DIF_STRIP)
8629 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_STRIP);
8630 else if (iocbq->iocb_flag & LPFC_IO_DIF_INSERT)
8631 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_INSERT);
8632 iocbq->iocb_flag &= ~(LPFC_IO_DIF_PASS | LPFC_IO_DIF_STRIP |
8633 LPFC_IO_DIF_INSERT);
8634 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
8635 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
8636 wqe->generic.wqe_com.abort_tag = abort_tag;
8637 bf_set(wqe_cmd_type, &wqe->generic.wqe_com, command_type);
8638 bf_set(wqe_cmnd, &wqe->generic.wqe_com, cmnd);
8639 bf_set(wqe_class, &wqe->generic.wqe_com, iocbq->iocb.ulpClass);
8640 bf_set(wqe_cqid, &wqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
8645 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
8646 * @phba: Pointer to HBA context object.
8647 * @ring_number: SLI ring number to issue iocb on.
8648 * @piocb: Pointer to command iocb.
8649 * @flag: Flag indicating if this command can be put into txq.
8651 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
8652 * an iocb command to an HBA with SLI-4 interface spec.
8654 * This function is called with hbalock held. The function will return success
8655 * after it successfully submit the iocb to firmware or after adding to the
8659 __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
8660 struct lpfc_iocbq *piocb, uint32_t flag)
8662 struct lpfc_sglq *sglq;
8664 struct lpfc_queue *wq;
8665 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
8667 if (piocb->sli4_xritag == NO_XRI) {
8668 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
8669 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
8672 if (!list_empty(&pring->txq)) {
8673 if (!(flag & SLI_IOCB_RET_IOCB)) {
8674 __lpfc_sli_ringtx_put(phba,
8676 return IOCB_SUCCESS;
8681 sglq = __lpfc_sli_get_sglq(phba, piocb);
8683 if (!(flag & SLI_IOCB_RET_IOCB)) {
8684 __lpfc_sli_ringtx_put(phba,
8687 return IOCB_SUCCESS;
8693 } else if (piocb->iocb_flag & LPFC_IO_FCP) {
8694 /* These IO's already have an XRI and a mapped sgl. */
8698 * This is a continuation of a commandi,(CX) so this
8699 * sglq is on the active list
8701 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_lxritag);
8707 piocb->sli4_lxritag = sglq->sli4_lxritag;
8708 piocb->sli4_xritag = sglq->sli4_xritag;
8709 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocb, sglq))
8713 if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe))
8716 if ((piocb->iocb_flag & LPFC_IO_FCP) ||
8717 (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
8718 if (!phba->cfg_fof || (!(piocb->iocb_flag & LPFC_IO_OAS))) {
8719 wq = phba->sli4_hba.fcp_wq[piocb->fcp_wqidx];
8721 wq = phba->sli4_hba.oas_wq;
8723 if (lpfc_sli4_wq_put(wq, &wqe))
8726 if (unlikely(!phba->sli4_hba.els_wq))
8728 if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
8731 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
8737 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
8739 * This routine wraps the actual lockless version for issusing IOCB function
8740 * pointer from the lpfc_hba struct.
8743 * IOCB_ERROR - Error
8744 * IOCB_SUCCESS - Success
8748 __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
8749 struct lpfc_iocbq *piocb, uint32_t flag)
8751 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
8755 * lpfc_sli_api_table_setup - Set up sli api function jump table
8756 * @phba: The hba struct for which this call is being executed.
8757 * @dev_grp: The HBA PCI-Device group number.
8759 * This routine sets up the SLI interface API function jump table in @phba
8761 * Returns: 0 - success, -ENODEV - failure.
8764 lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
8768 case LPFC_PCI_DEV_LP:
8769 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
8770 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
8772 case LPFC_PCI_DEV_OC:
8773 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
8774 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
8777 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8778 "1419 Invalid HBA PCI-device group: 0x%x\n",
8783 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
8788 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
8789 * @phba: Pointer to HBA context object.
8790 * @pring: Pointer to driver SLI ring object.
8791 * @piocb: Pointer to command iocb.
8792 * @flag: Flag indicating if this command can be put into txq.
8794 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
8795 * function. This function gets the hbalock and calls
8796 * __lpfc_sli_issue_iocb function and will return the error returned
8797 * by __lpfc_sli_issue_iocb function. This wrapper is used by
8798 * functions which do not hold hbalock.
8801 lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
8802 struct lpfc_iocbq *piocb, uint32_t flag)
8804 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
8805 struct lpfc_sli_ring *pring;
8806 struct lpfc_queue *fpeq;
8807 struct lpfc_eqe *eqe;
8808 unsigned long iflags;
8811 if (phba->sli_rev == LPFC_SLI_REV4) {
8812 if (piocb->iocb_flag & LPFC_IO_FCP) {
8813 if (!phba->cfg_fof || (!(piocb->iocb_flag &
8815 if (unlikely(!phba->sli4_hba.fcp_wq))
8817 idx = lpfc_sli4_scmd_to_wqidx_distr(phba);
8818 piocb->fcp_wqidx = idx;
8819 ring_number = MAX_SLI3_CONFIGURED_RINGS + idx;
8821 if (unlikely(!phba->sli4_hba.oas_wq))
8824 piocb->fcp_wqidx = 0;
8825 ring_number = LPFC_FCP_OAS_RING;
8827 pring = &phba->sli.ring[ring_number];
8828 spin_lock_irqsave(&pring->ring_lock, iflags);
8829 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb,
8831 spin_unlock_irqrestore(&pring->ring_lock, iflags);
8833 if (lpfc_fcp_look_ahead) {
8834 fcp_eq_hdl = &phba->sli4_hba.fcp_eq_hdl[idx];
8836 if (atomic_dec_and_test(&fcp_eq_hdl->
8839 /* Get associated EQ with this index */
8840 fpeq = phba->sli4_hba.hba_eq[idx];
8842 /* Turn off interrupts from this EQ */
8843 lpfc_sli4_eq_clr_intr(fpeq);
8846 * Process all the events on FCP EQ
8848 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
8849 lpfc_sli4_hba_handle_eqe(phba,
8851 fpeq->EQ_processed++;
8854 /* Always clear and re-arm the EQ */
8855 lpfc_sli4_eq_release(fpeq,
8858 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
8861 pring = &phba->sli.ring[ring_number];
8862 spin_lock_irqsave(&pring->ring_lock, iflags);
8863 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb,
8865 spin_unlock_irqrestore(&pring->ring_lock, iflags);
8869 /* For now, SLI2/3 will still use hbalock */
8870 spin_lock_irqsave(&phba->hbalock, iflags);
8871 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
8872 spin_unlock_irqrestore(&phba->hbalock, iflags);
8878 * lpfc_extra_ring_setup - Extra ring setup function
8879 * @phba: Pointer to HBA context object.
8881 * This function is called while driver attaches with the
8882 * HBA to setup the extra ring. The extra ring is used
8883 * only when driver needs to support target mode functionality
8884 * or IP over FC functionalities.
8886 * This function is called with no lock held.
8889 lpfc_extra_ring_setup( struct lpfc_hba *phba)
8891 struct lpfc_sli *psli;
8892 struct lpfc_sli_ring *pring;
8896 /* Adjust cmd/rsp ring iocb entries more evenly */
8898 /* Take some away from the FCP ring */
8899 pring = &psli->ring[psli->fcp_ring];
8900 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8901 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8902 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8903 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
8905 /* and give them to the extra ring */
8906 pring = &psli->ring[psli->extra_ring];
8908 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8909 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8910 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8911 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
8913 /* Setup default profile for this ring */
8914 pring->iotag_max = 4096;
8915 pring->num_mask = 1;
8916 pring->prt[0].profile = 0; /* Mask 0 */
8917 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
8918 pring->prt[0].type = phba->cfg_multi_ring_type;
8919 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
8923 /* lpfc_sli_abts_err_handler - handle a failed ABTS request from an SLI3 port.
8924 * @phba: Pointer to HBA context object.
8925 * @iocbq: Pointer to iocb object.
8927 * The async_event handler calls this routine when it receives
8928 * an ASYNC_STATUS_CN event from the port. The port generates
8929 * this event when an Abort Sequence request to an rport fails
8930 * twice in succession. The abort could be originated by the
8931 * driver or by the port. The ABTS could have been for an ELS
8932 * or FCP IO. The port only generates this event when an ABTS
8933 * fails to complete after one retry.
8936 lpfc_sli_abts_err_handler(struct lpfc_hba *phba,
8937 struct lpfc_iocbq *iocbq)
8939 struct lpfc_nodelist *ndlp = NULL;
8940 uint16_t rpi = 0, vpi = 0;
8941 struct lpfc_vport *vport = NULL;
8943 /* The rpi in the ulpContext is vport-sensitive. */
8944 vpi = iocbq->iocb.un.asyncstat.sub_ctxt_tag;
8945 rpi = iocbq->iocb.ulpContext;
8947 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8948 "3092 Port generated ABTS async event "
8949 "on vpi %d rpi %d status 0x%x\n",
8950 vpi, rpi, iocbq->iocb.ulpStatus);
8952 vport = lpfc_find_vport_by_vpid(phba, vpi);
8955 ndlp = lpfc_findnode_rpi(vport, rpi);
8956 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
8959 if (iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT)
8960 lpfc_sli_abts_recover_port(vport, ndlp);
8964 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8965 "3095 Event Context not found, no "
8966 "action on vpi %d rpi %d status 0x%x, reason 0x%x\n",
8967 iocbq->iocb.ulpContext, iocbq->iocb.ulpStatus,
8971 /* lpfc_sli4_abts_err_handler - handle a failed ABTS request from an SLI4 port.
8972 * @phba: pointer to HBA context object.
8973 * @ndlp: nodelist pointer for the impacted rport.
8974 * @axri: pointer to the wcqe containing the failed exchange.
8976 * The driver calls this routine when it receives an ABORT_XRI_FCP CQE from the
8977 * port. The port generates this event when an abort exchange request to an
8978 * rport fails twice in succession with no reply. The abort could be originated
8979 * by the driver or by the port. The ABTS could have been for an ELS or FCP IO.
8982 lpfc_sli4_abts_err_handler(struct lpfc_hba *phba,
8983 struct lpfc_nodelist *ndlp,
8984 struct sli4_wcqe_xri_aborted *axri)
8986 struct lpfc_vport *vport;
8987 uint32_t ext_status = 0;
8989 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
8990 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8991 "3115 Node Context not found, driver "
8992 "ignoring abts err event\n");
8996 vport = ndlp->vport;
8997 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8998 "3116 Port generated FCP XRI ABORT event on "
8999 "vpi %d rpi %d xri x%x status 0x%x parameter x%x\n",
9000 ndlp->vport->vpi, phba->sli4_hba.rpi_ids[ndlp->nlp_rpi],
9001 bf_get(lpfc_wcqe_xa_xri, axri),
9002 bf_get(lpfc_wcqe_xa_status, axri),
9006 * Catch the ABTS protocol failure case. Older OCe FW releases returned
9007 * LOCAL_REJECT and 0 for a failed ABTS exchange and later OCe and
9008 * LPe FW releases returned LOCAL_REJECT and SEQUENCE_TIMEOUT.
9010 ext_status = axri->parameter & IOERR_PARAM_MASK;
9011 if ((bf_get(lpfc_wcqe_xa_status, axri) == IOSTAT_LOCAL_REJECT) &&
9012 ((ext_status == IOERR_SEQUENCE_TIMEOUT) || (ext_status == 0)))
9013 lpfc_sli_abts_recover_port(vport, ndlp);
9017 * lpfc_sli_async_event_handler - ASYNC iocb handler function
9018 * @phba: Pointer to HBA context object.
9019 * @pring: Pointer to driver SLI ring object.
9020 * @iocbq: Pointer to iocb object.
9022 * This function is called by the slow ring event handler
9023 * function when there is an ASYNC event iocb in the ring.
9024 * This function is called with no lock held.
9025 * Currently this function handles only temperature related
9026 * ASYNC events. The function decodes the temperature sensor
9027 * event message and posts events for the management applications.
9030 lpfc_sli_async_event_handler(struct lpfc_hba * phba,
9031 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
9035 struct temp_event temp_event_data;
9036 struct Scsi_Host *shost;
9039 icmd = &iocbq->iocb;
9040 evt_code = icmd->un.asyncstat.evt_code;
9043 case ASYNC_TEMP_WARN:
9044 case ASYNC_TEMP_SAFE:
9045 temp_event_data.data = (uint32_t) icmd->ulpContext;
9046 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
9047 if (evt_code == ASYNC_TEMP_WARN) {
9048 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
9049 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
9050 "0347 Adapter is very hot, please take "
9051 "corrective action. temperature : %d Celsius\n",
9052 (uint32_t) icmd->ulpContext);
9054 temp_event_data.event_code = LPFC_NORMAL_TEMP;
9055 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
9056 "0340 Adapter temperature is OK now. "
9057 "temperature : %d Celsius\n",
9058 (uint32_t) icmd->ulpContext);
9061 /* Send temperature change event to applications */
9062 shost = lpfc_shost_from_vport(phba->pport);
9063 fc_host_post_vendor_event(shost, fc_get_event_number(),
9064 sizeof(temp_event_data), (char *) &temp_event_data,
9067 case ASYNC_STATUS_CN:
9068 lpfc_sli_abts_err_handler(phba, iocbq);
9071 iocb_w = (uint32_t *) icmd;
9072 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9073 "0346 Ring %d handler: unexpected ASYNC_STATUS"
9075 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
9076 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
9077 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
9078 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
9079 pring->ringno, icmd->un.asyncstat.evt_code,
9080 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
9081 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
9082 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
9083 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
9091 * lpfc_sli_setup - SLI ring setup function
9092 * @phba: Pointer to HBA context object.
9094 * lpfc_sli_setup sets up rings of the SLI interface with
9095 * number of iocbs per ring and iotags. This function is
9096 * called while driver attach to the HBA and before the
9097 * interrupts are enabled. So there is no need for locking.
9099 * This function always returns 0.
9102 lpfc_sli_setup(struct lpfc_hba *phba)
9104 int i, totiocbsize = 0;
9105 struct lpfc_sli *psli = &phba->sli;
9106 struct lpfc_sli_ring *pring;
9108 psli->num_rings = MAX_SLI3_CONFIGURED_RINGS;
9109 if (phba->sli_rev == LPFC_SLI_REV4)
9110 psli->num_rings += phba->cfg_fcp_io_channel;
9112 psli->fcp_ring = LPFC_FCP_RING;
9113 psli->next_ring = LPFC_FCP_NEXT_RING;
9114 psli->extra_ring = LPFC_EXTRA_RING;
9116 psli->iocbq_lookup = NULL;
9117 psli->iocbq_lookup_len = 0;
9118 psli->last_iotag = 0;
9120 for (i = 0; i < psli->num_rings; i++) {
9121 pring = &psli->ring[i];
9123 case LPFC_FCP_RING: /* ring 0 - FCP */
9124 /* numCiocb and numRiocb are used in config_port */
9125 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
9126 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
9127 pring->sli.sli3.numCiocb +=
9128 SLI2_IOCB_CMD_R1XTRA_ENTRIES;
9129 pring->sli.sli3.numRiocb +=
9130 SLI2_IOCB_RSP_R1XTRA_ENTRIES;
9131 pring->sli.sli3.numCiocb +=
9132 SLI2_IOCB_CMD_R3XTRA_ENTRIES;
9133 pring->sli.sli3.numRiocb +=
9134 SLI2_IOCB_RSP_R3XTRA_ENTRIES;
9135 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
9136 SLI3_IOCB_CMD_SIZE :
9138 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
9139 SLI3_IOCB_RSP_SIZE :
9141 pring->iotag_ctr = 0;
9143 (phba->cfg_hba_queue_depth * 2);
9144 pring->fast_iotag = pring->iotag_max;
9145 pring->num_mask = 0;
9147 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
9148 /* numCiocb and numRiocb are used in config_port */
9149 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
9150 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
9151 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
9152 SLI3_IOCB_CMD_SIZE :
9154 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
9155 SLI3_IOCB_RSP_SIZE :
9157 pring->iotag_max = phba->cfg_hba_queue_depth;
9158 pring->num_mask = 0;
9160 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
9161 /* numCiocb and numRiocb are used in config_port */
9162 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
9163 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
9164 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
9165 SLI3_IOCB_CMD_SIZE :
9167 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
9168 SLI3_IOCB_RSP_SIZE :
9170 pring->fast_iotag = 0;
9171 pring->iotag_ctr = 0;
9172 pring->iotag_max = 4096;
9173 pring->lpfc_sli_rcv_async_status =
9174 lpfc_sli_async_event_handler;
9175 pring->num_mask = LPFC_MAX_RING_MASK;
9176 pring->prt[0].profile = 0; /* Mask 0 */
9177 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
9178 pring->prt[0].type = FC_TYPE_ELS;
9179 pring->prt[0].lpfc_sli_rcv_unsol_event =
9180 lpfc_els_unsol_event;
9181 pring->prt[1].profile = 0; /* Mask 1 */
9182 pring->prt[1].rctl = FC_RCTL_ELS_REP;
9183 pring->prt[1].type = FC_TYPE_ELS;
9184 pring->prt[1].lpfc_sli_rcv_unsol_event =
9185 lpfc_els_unsol_event;
9186 pring->prt[2].profile = 0; /* Mask 2 */
9187 /* NameServer Inquiry */
9188 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
9190 pring->prt[2].type = FC_TYPE_CT;
9191 pring->prt[2].lpfc_sli_rcv_unsol_event =
9192 lpfc_ct_unsol_event;
9193 pring->prt[3].profile = 0; /* Mask 3 */
9194 /* NameServer response */
9195 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
9197 pring->prt[3].type = FC_TYPE_CT;
9198 pring->prt[3].lpfc_sli_rcv_unsol_event =
9199 lpfc_ct_unsol_event;
9202 totiocbsize += (pring->sli.sli3.numCiocb *
9203 pring->sli.sli3.sizeCiocb) +
9204 (pring->sli.sli3.numRiocb * pring->sli.sli3.sizeRiocb);
9206 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
9207 /* Too many cmd / rsp ring entries in SLI2 SLIM */
9208 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
9209 "SLI2 SLIM Data: x%x x%lx\n",
9210 phba->brd_no, totiocbsize,
9211 (unsigned long) MAX_SLIM_IOCB_SIZE);
9213 if (phba->cfg_multi_ring_support == 2)
9214 lpfc_extra_ring_setup(phba);
9220 * lpfc_sli_queue_setup - Queue initialization function
9221 * @phba: Pointer to HBA context object.
9223 * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each
9224 * ring. This function also initializes ring indices of each ring.
9225 * This function is called during the initialization of the SLI
9226 * interface of an HBA.
9227 * This function is called with no lock held and always returns
9231 lpfc_sli_queue_setup(struct lpfc_hba *phba)
9233 struct lpfc_sli *psli;
9234 struct lpfc_sli_ring *pring;
9238 spin_lock_irq(&phba->hbalock);
9239 INIT_LIST_HEAD(&psli->mboxq);
9240 INIT_LIST_HEAD(&psli->mboxq_cmpl);
9241 /* Initialize list headers for txq and txcmplq as double linked lists */
9242 for (i = 0; i < psli->num_rings; i++) {
9243 pring = &psli->ring[i];
9245 pring->sli.sli3.next_cmdidx = 0;
9246 pring->sli.sli3.local_getidx = 0;
9247 pring->sli.sli3.cmdidx = 0;
9249 INIT_LIST_HEAD(&pring->txq);
9250 INIT_LIST_HEAD(&pring->txcmplq);
9251 INIT_LIST_HEAD(&pring->iocb_continueq);
9252 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
9253 INIT_LIST_HEAD(&pring->postbufq);
9254 spin_lock_init(&pring->ring_lock);
9256 spin_unlock_irq(&phba->hbalock);
9261 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
9262 * @phba: Pointer to HBA context object.
9264 * This routine flushes the mailbox command subsystem. It will unconditionally
9265 * flush all the mailbox commands in the three possible stages in the mailbox
9266 * command sub-system: pending mailbox command queue; the outstanding mailbox
9267 * command; and completed mailbox command queue. It is caller's responsibility
9268 * to make sure that the driver is in the proper state to flush the mailbox
9269 * command sub-system. Namely, the posting of mailbox commands into the
9270 * pending mailbox command queue from the various clients must be stopped;
9271 * either the HBA is in a state that it will never works on the outstanding
9272 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
9273 * mailbox command has been completed.
9276 lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
9278 LIST_HEAD(completions);
9279 struct lpfc_sli *psli = &phba->sli;
9281 unsigned long iflag;
9283 /* Flush all the mailbox commands in the mbox system */
9284 spin_lock_irqsave(&phba->hbalock, iflag);
9285 /* The pending mailbox command queue */
9286 list_splice_init(&phba->sli.mboxq, &completions);
9287 /* The outstanding active mailbox command */
9288 if (psli->mbox_active) {
9289 list_add_tail(&psli->mbox_active->list, &completions);
9290 psli->mbox_active = NULL;
9291 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9293 /* The completed mailbox command queue */
9294 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
9295 spin_unlock_irqrestore(&phba->hbalock, iflag);
9297 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
9298 while (!list_empty(&completions)) {
9299 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
9300 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
9302 pmb->mbox_cmpl(phba, pmb);
9307 * lpfc_sli_host_down - Vport cleanup function
9308 * @vport: Pointer to virtual port object.
9310 * lpfc_sli_host_down is called to clean up the resources
9311 * associated with a vport before destroying virtual
9312 * port data structures.
9313 * This function does following operations:
9314 * - Free discovery resources associated with this virtual
9316 * - Free iocbs associated with this virtual port in
9318 * - Send abort for all iocb commands associated with this
9321 * This function is called with no lock held and always returns 1.
9324 lpfc_sli_host_down(struct lpfc_vport *vport)
9326 LIST_HEAD(completions);
9327 struct lpfc_hba *phba = vport->phba;
9328 struct lpfc_sli *psli = &phba->sli;
9329 struct lpfc_sli_ring *pring;
9330 struct lpfc_iocbq *iocb, *next_iocb;
9332 unsigned long flags = 0;
9333 uint16_t prev_pring_flag;
9335 lpfc_cleanup_discovery_resources(vport);
9337 spin_lock_irqsave(&phba->hbalock, flags);
9338 for (i = 0; i < psli->num_rings; i++) {
9339 pring = &psli->ring[i];
9340 prev_pring_flag = pring->flag;
9341 /* Only slow rings */
9342 if (pring->ringno == LPFC_ELS_RING) {
9343 pring->flag |= LPFC_DEFERRED_RING_EVENT;
9344 /* Set the lpfc data pending flag */
9345 set_bit(LPFC_DATA_READY, &phba->data_flags);
9348 * Error everything on the txq since these iocbs have not been
9349 * given to the FW yet.
9351 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
9352 if (iocb->vport != vport)
9354 list_move_tail(&iocb->list, &completions);
9357 /* Next issue ABTS for everything on the txcmplq */
9358 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq,
9360 if (iocb->vport != vport)
9362 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
9365 pring->flag = prev_pring_flag;
9368 spin_unlock_irqrestore(&phba->hbalock, flags);
9370 /* Cancel all the IOCBs from the completions list */
9371 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9377 * lpfc_sli_hba_down - Resource cleanup function for the HBA
9378 * @phba: Pointer to HBA context object.
9380 * This function cleans up all iocb, buffers, mailbox commands
9381 * while shutting down the HBA. This function is called with no
9382 * lock held and always returns 1.
9383 * This function does the following to cleanup driver resources:
9384 * - Free discovery resources for each virtual port
9385 * - Cleanup any pending fabric iocbs
9386 * - Iterate through the iocb txq and free each entry
9388 * - Free up any buffer posted to the HBA
9389 * - Free mailbox commands in the mailbox queue.
9392 lpfc_sli_hba_down(struct lpfc_hba *phba)
9394 LIST_HEAD(completions);
9395 struct lpfc_sli *psli = &phba->sli;
9396 struct lpfc_sli_ring *pring;
9397 struct lpfc_dmabuf *buf_ptr;
9398 unsigned long flags = 0;
9401 /* Shutdown the mailbox command sub-system */
9402 lpfc_sli_mbox_sys_shutdown(phba, LPFC_MBX_WAIT);
9404 lpfc_hba_down_prep(phba);
9406 lpfc_fabric_abort_hba(phba);
9408 spin_lock_irqsave(&phba->hbalock, flags);
9409 for (i = 0; i < psli->num_rings; i++) {
9410 pring = &psli->ring[i];
9411 /* Only slow rings */
9412 if (pring->ringno == LPFC_ELS_RING) {
9413 pring->flag |= LPFC_DEFERRED_RING_EVENT;
9414 /* Set the lpfc data pending flag */
9415 set_bit(LPFC_DATA_READY, &phba->data_flags);
9419 * Error everything on the txq since these iocbs have not been
9420 * given to the FW yet.
9422 list_splice_init(&pring->txq, &completions);
9424 spin_unlock_irqrestore(&phba->hbalock, flags);
9426 /* Cancel all the IOCBs from the completions list */
9427 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9430 spin_lock_irqsave(&phba->hbalock, flags);
9431 list_splice_init(&phba->elsbuf, &completions);
9432 phba->elsbuf_cnt = 0;
9433 phba->elsbuf_prev_cnt = 0;
9434 spin_unlock_irqrestore(&phba->hbalock, flags);
9436 while (!list_empty(&completions)) {
9437 list_remove_head(&completions, buf_ptr,
9438 struct lpfc_dmabuf, list);
9439 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
9443 /* Return any active mbox cmds */
9444 del_timer_sync(&psli->mbox_tmo);
9446 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
9447 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
9448 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
9454 * lpfc_sli_pcimem_bcopy - SLI memory copy function
9455 * @srcp: Source memory pointer.
9456 * @destp: Destination memory pointer.
9457 * @cnt: Number of words required to be copied.
9459 * This function is used for copying data between driver memory
9460 * and the SLI memory. This function also changes the endianness
9461 * of each word if native endianness is different from SLI
9462 * endianness. This function can be called with or without
9466 lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
9468 uint32_t *src = srcp;
9469 uint32_t *dest = destp;
9473 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
9475 ldata = le32_to_cpu(ldata);
9484 * lpfc_sli_bemem_bcopy - SLI memory copy function
9485 * @srcp: Source memory pointer.
9486 * @destp: Destination memory pointer.
9487 * @cnt: Number of words required to be copied.
9489 * This function is used for copying data between a data structure
9490 * with big endian representation to local endianness.
9491 * This function can be called with or without lock.
9494 lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
9496 uint32_t *src = srcp;
9497 uint32_t *dest = destp;
9501 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
9503 ldata = be32_to_cpu(ldata);
9511 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
9512 * @phba: Pointer to HBA context object.
9513 * @pring: Pointer to driver SLI ring object.
9514 * @mp: Pointer to driver buffer object.
9516 * This function is called with no lock held.
9517 * It always return zero after adding the buffer to the postbufq
9521 lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9522 struct lpfc_dmabuf *mp)
9524 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
9526 spin_lock_irq(&phba->hbalock);
9527 list_add_tail(&mp->list, &pring->postbufq);
9528 pring->postbufq_cnt++;
9529 spin_unlock_irq(&phba->hbalock);
9534 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
9535 * @phba: Pointer to HBA context object.
9537 * When HBQ is enabled, buffers are searched based on tags. This function
9538 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
9539 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
9540 * does not conflict with tags of buffer posted for unsolicited events.
9541 * The function returns the allocated tag. The function is called with
9545 lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
9547 spin_lock_irq(&phba->hbalock);
9548 phba->buffer_tag_count++;
9550 * Always set the QUE_BUFTAG_BIT to distiguish between
9551 * a tag assigned by HBQ.
9553 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
9554 spin_unlock_irq(&phba->hbalock);
9555 return phba->buffer_tag_count;
9559 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
9560 * @phba: Pointer to HBA context object.
9561 * @pring: Pointer to driver SLI ring object.
9564 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
9565 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
9566 * iocb is posted to the response ring with the tag of the buffer.
9567 * This function searches the pring->postbufq list using the tag
9568 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
9569 * iocb. If the buffer is found then lpfc_dmabuf object of the
9570 * buffer is returned to the caller else NULL is returned.
9571 * This function is called with no lock held.
9573 struct lpfc_dmabuf *
9574 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9577 struct lpfc_dmabuf *mp, *next_mp;
9578 struct list_head *slp = &pring->postbufq;
9580 /* Search postbufq, from the beginning, looking for a match on tag */
9581 spin_lock_irq(&phba->hbalock);
9582 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
9583 if (mp->buffer_tag == tag) {
9584 list_del_init(&mp->list);
9585 pring->postbufq_cnt--;
9586 spin_unlock_irq(&phba->hbalock);
9591 spin_unlock_irq(&phba->hbalock);
9592 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9593 "0402 Cannot find virtual addr for buffer tag on "
9594 "ring %d Data x%lx x%p x%p x%x\n",
9595 pring->ringno, (unsigned long) tag,
9596 slp->next, slp->prev, pring->postbufq_cnt);
9602 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
9603 * @phba: Pointer to HBA context object.
9604 * @pring: Pointer to driver SLI ring object.
9605 * @phys: DMA address of the buffer.
9607 * This function searches the buffer list using the dma_address
9608 * of unsolicited event to find the driver's lpfc_dmabuf object
9609 * corresponding to the dma_address. The function returns the
9610 * lpfc_dmabuf object if a buffer is found else it returns NULL.
9611 * This function is called by the ct and els unsolicited event
9612 * handlers to get the buffer associated with the unsolicited
9615 * This function is called with no lock held.
9617 struct lpfc_dmabuf *
9618 lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9621 struct lpfc_dmabuf *mp, *next_mp;
9622 struct list_head *slp = &pring->postbufq;
9624 /* Search postbufq, from the beginning, looking for a match on phys */
9625 spin_lock_irq(&phba->hbalock);
9626 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
9627 if (mp->phys == phys) {
9628 list_del_init(&mp->list);
9629 pring->postbufq_cnt--;
9630 spin_unlock_irq(&phba->hbalock);
9635 spin_unlock_irq(&phba->hbalock);
9636 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9637 "0410 Cannot find virtual addr for mapped buf on "
9638 "ring %d Data x%llx x%p x%p x%x\n",
9639 pring->ringno, (unsigned long long)phys,
9640 slp->next, slp->prev, pring->postbufq_cnt);
9645 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
9646 * @phba: Pointer to HBA context object.
9647 * @cmdiocb: Pointer to driver command iocb object.
9648 * @rspiocb: Pointer to driver response iocb object.
9650 * This function is the completion handler for the abort iocbs for
9651 * ELS commands. This function is called from the ELS ring event
9652 * handler with no lock held. This function frees memory resources
9653 * associated with the abort iocb.
9656 lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9657 struct lpfc_iocbq *rspiocb)
9659 IOCB_t *irsp = &rspiocb->iocb;
9660 uint16_t abort_iotag, abort_context;
9661 struct lpfc_iocbq *abort_iocb = NULL;
9663 if (irsp->ulpStatus) {
9666 * Assume that the port already completed and returned, or
9667 * will return the iocb. Just Log the message.
9669 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
9670 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
9672 spin_lock_irq(&phba->hbalock);
9673 if (phba->sli_rev < LPFC_SLI_REV4) {
9674 if (abort_iotag != 0 &&
9675 abort_iotag <= phba->sli.last_iotag)
9677 phba->sli.iocbq_lookup[abort_iotag];
9679 /* For sli4 the abort_tag is the XRI,
9680 * so the abort routine puts the iotag of the iocb
9681 * being aborted in the context field of the abort
9684 abort_iocb = phba->sli.iocbq_lookup[abort_context];
9686 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI,
9687 "0327 Cannot abort els iocb %p "
9688 "with tag %x context %x, abort status %x, "
9690 abort_iocb, abort_iotag, abort_context,
9691 irsp->ulpStatus, irsp->un.ulpWord[4]);
9693 spin_unlock_irq(&phba->hbalock);
9695 lpfc_sli_release_iocbq(phba, cmdiocb);
9700 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
9701 * @phba: Pointer to HBA context object.
9702 * @cmdiocb: Pointer to driver command iocb object.
9703 * @rspiocb: Pointer to driver response iocb object.
9705 * The function is called from SLI ring event handler with no
9706 * lock held. This function is the completion handler for ELS commands
9707 * which are aborted. The function frees memory resources used for
9708 * the aborted ELS commands.
9711 lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9712 struct lpfc_iocbq *rspiocb)
9714 IOCB_t *irsp = &rspiocb->iocb;
9716 /* ELS cmd tag <ulpIoTag> completes */
9717 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
9718 "0139 Ignoring ELS cmd tag x%x completion Data: "
9720 irsp->ulpIoTag, irsp->ulpStatus,
9721 irsp->un.ulpWord[4], irsp->ulpTimeout);
9722 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
9723 lpfc_ct_free_iocb(phba, cmdiocb);
9725 lpfc_els_free_iocb(phba, cmdiocb);
9730 * lpfc_sli_abort_iotag_issue - Issue abort for a command iocb
9731 * @phba: Pointer to HBA context object.
9732 * @pring: Pointer to driver SLI ring object.
9733 * @cmdiocb: Pointer to driver command iocb object.
9735 * This function issues an abort iocb for the provided command iocb down to
9736 * the port. Other than the case the outstanding command iocb is an abort
9737 * request, this function issues abort out unconditionally. This function is
9738 * called with hbalock held. The function returns 0 when it fails due to
9739 * memory allocation failure or when the command iocb is an abort request.
9742 lpfc_sli_abort_iotag_issue(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9743 struct lpfc_iocbq *cmdiocb)
9745 struct lpfc_vport *vport = cmdiocb->vport;
9746 struct lpfc_iocbq *abtsiocbp;
9747 IOCB_t *icmd = NULL;
9748 IOCB_t *iabt = NULL;
9750 unsigned long iflags;
9753 * There are certain command types we don't want to abort. And we
9754 * don't want to abort commands that are already in the process of
9757 icmd = &cmdiocb->iocb;
9758 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
9759 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
9760 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
9763 /* issue ABTS for this IOCB based on iotag */
9764 abtsiocbp = __lpfc_sli_get_iocbq(phba);
9765 if (abtsiocbp == NULL)
9768 /* This signals the response to set the correct status
9769 * before calling the completion handler
9771 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
9773 iabt = &abtsiocbp->iocb;
9774 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
9775 iabt->un.acxri.abortContextTag = icmd->ulpContext;
9776 if (phba->sli_rev == LPFC_SLI_REV4) {
9777 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
9778 iabt->un.acxri.abortContextTag = cmdiocb->iotag;
9781 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
9783 iabt->ulpClass = icmd->ulpClass;
9785 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
9786 abtsiocbp->fcp_wqidx = cmdiocb->fcp_wqidx;
9787 if (cmdiocb->iocb_flag & LPFC_IO_FCP)
9788 abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
9790 if (phba->link_state >= LPFC_LINK_UP)
9791 iabt->ulpCommand = CMD_ABORT_XRI_CN;
9793 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
9795 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
9797 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
9798 "0339 Abort xri x%x, original iotag x%x, "
9799 "abort cmd iotag x%x\n",
9800 iabt->un.acxri.abortIoTag,
9801 iabt->un.acxri.abortContextTag,
9804 if (phba->sli_rev == LPFC_SLI_REV4) {
9805 /* Note: both hbalock and ring_lock need to be set here */
9806 spin_lock_irqsave(&pring->ring_lock, iflags);
9807 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
9809 spin_unlock_irqrestore(&pring->ring_lock, iflags);
9811 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
9816 __lpfc_sli_release_iocbq(phba, abtsiocbp);
9819 * Caller to this routine should check for IOCB_ERROR
9820 * and handle it properly. This routine no longer removes
9821 * iocb off txcmplq and call compl in case of IOCB_ERROR.
9827 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
9828 * @phba: Pointer to HBA context object.
9829 * @pring: Pointer to driver SLI ring object.
9830 * @cmdiocb: Pointer to driver command iocb object.
9832 * This function issues an abort iocb for the provided command iocb. In case
9833 * of unloading, the abort iocb will not be issued to commands on the ELS
9834 * ring. Instead, the callback function shall be changed to those commands
9835 * so that nothing happens when them finishes. This function is called with
9836 * hbalock held. The function returns 0 when the command iocb is an abort
9840 lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9841 struct lpfc_iocbq *cmdiocb)
9843 struct lpfc_vport *vport = cmdiocb->vport;
9844 int retval = IOCB_ERROR;
9845 IOCB_t *icmd = NULL;
9848 * There are certain command types we don't want to abort. And we
9849 * don't want to abort commands that are already in the process of
9852 icmd = &cmdiocb->iocb;
9853 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
9854 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
9855 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
9859 * If we're unloading, don't abort iocb on the ELS ring, but change
9860 * the callback so that nothing happens when it finishes.
9862 if ((vport->load_flag & FC_UNLOADING) &&
9863 (pring->ringno == LPFC_ELS_RING)) {
9864 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
9865 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
9867 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
9868 goto abort_iotag_exit;
9871 /* Now, we try to issue the abort to the cmdiocb out */
9872 retval = lpfc_sli_abort_iotag_issue(phba, pring, cmdiocb);
9876 * Caller to this routine should check for IOCB_ERROR
9877 * and handle it properly. This routine no longer removes
9878 * iocb off txcmplq and call compl in case of IOCB_ERROR.
9884 * lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
9885 * @phba: pointer to lpfc HBA data structure.
9887 * This routine will abort all pending and outstanding iocbs to an HBA.
9890 lpfc_sli_hba_iocb_abort(struct lpfc_hba *phba)
9892 struct lpfc_sli *psli = &phba->sli;
9893 struct lpfc_sli_ring *pring;
9896 for (i = 0; i < psli->num_rings; i++) {
9897 pring = &psli->ring[i];
9898 lpfc_sli_abort_iocb_ring(phba, pring);
9903 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
9904 * @iocbq: Pointer to driver iocb object.
9905 * @vport: Pointer to driver virtual port object.
9906 * @tgt_id: SCSI ID of the target.
9907 * @lun_id: LUN ID of the scsi device.
9908 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
9910 * This function acts as an iocb filter for functions which abort or count
9911 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
9912 * 0 if the filtering criteria is met for the given iocb and will return
9913 * 1 if the filtering criteria is not met.
9914 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
9915 * given iocb is for the SCSI device specified by vport, tgt_id and
9917 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
9918 * given iocb is for the SCSI target specified by vport and tgt_id
9920 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
9921 * given iocb is for the SCSI host associated with the given vport.
9922 * This function is called with no locks held.
9925 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
9926 uint16_t tgt_id, uint64_t lun_id,
9927 lpfc_ctx_cmd ctx_cmd)
9929 struct lpfc_scsi_buf *lpfc_cmd;
9932 if (!(iocbq->iocb_flag & LPFC_IO_FCP))
9935 if (iocbq->vport != vport)
9938 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
9940 if (lpfc_cmd->pCmd == NULL)
9945 if ((lpfc_cmd->rdata->pnode) &&
9946 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
9947 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
9951 if ((lpfc_cmd->rdata->pnode) &&
9952 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
9959 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
9968 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
9969 * @vport: Pointer to virtual port.
9970 * @tgt_id: SCSI ID of the target.
9971 * @lun_id: LUN ID of the scsi device.
9972 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
9974 * This function returns number of FCP commands pending for the vport.
9975 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
9976 * commands pending on the vport associated with SCSI device specified
9977 * by tgt_id and lun_id parameters.
9978 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
9979 * commands pending on the vport associated with SCSI target specified
9980 * by tgt_id parameter.
9981 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
9982 * commands pending on the vport.
9983 * This function returns the number of iocbs which satisfy the filter.
9984 * This function is called without any lock held.
9987 lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
9988 lpfc_ctx_cmd ctx_cmd)
9990 struct lpfc_hba *phba = vport->phba;
9991 struct lpfc_iocbq *iocbq;
9994 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
9995 iocbq = phba->sli.iocbq_lookup[i];
9997 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
10006 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
10007 * @phba: Pointer to HBA context object
10008 * @cmdiocb: Pointer to command iocb object.
10009 * @rspiocb: Pointer to response iocb object.
10011 * This function is called when an aborted FCP iocb completes. This
10012 * function is called by the ring event handler with no lock held.
10013 * This function frees the iocb.
10016 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
10017 struct lpfc_iocbq *rspiocb)
10019 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10020 "3096 ABORT_XRI_CN completing on rpi x%x "
10021 "original iotag x%x, abort cmd iotag x%x "
10022 "status 0x%x, reason 0x%x\n",
10023 cmdiocb->iocb.un.acxri.abortContextTag,
10024 cmdiocb->iocb.un.acxri.abortIoTag,
10025 cmdiocb->iotag, rspiocb->iocb.ulpStatus,
10026 rspiocb->iocb.un.ulpWord[4]);
10027 lpfc_sli_release_iocbq(phba, cmdiocb);
10032 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
10033 * @vport: Pointer to virtual port.
10034 * @pring: Pointer to driver SLI ring object.
10035 * @tgt_id: SCSI ID of the target.
10036 * @lun_id: LUN ID of the scsi device.
10037 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
10039 * This function sends an abort command for every SCSI command
10040 * associated with the given virtual port pending on the ring
10041 * filtered by lpfc_sli_validate_fcp_iocb function.
10042 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
10043 * FCP iocbs associated with lun specified by tgt_id and lun_id
10045 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
10046 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
10047 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
10048 * FCP iocbs associated with virtual port.
10049 * This function returns number of iocbs it failed to abort.
10050 * This function is called with no locks held.
10053 lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
10054 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
10056 struct lpfc_hba *phba = vport->phba;
10057 struct lpfc_iocbq *iocbq;
10058 struct lpfc_iocbq *abtsiocb;
10059 IOCB_t *cmd = NULL;
10060 int errcnt = 0, ret_val = 0;
10063 for (i = 1; i <= phba->sli.last_iotag; i++) {
10064 iocbq = phba->sli.iocbq_lookup[i];
10066 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
10071 * If the iocbq is already being aborted, don't take a second
10072 * action, but do count it.
10074 if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
10077 /* issue ABTS for this IOCB based on iotag */
10078 abtsiocb = lpfc_sli_get_iocbq(phba);
10079 if (abtsiocb == NULL) {
10084 /* indicate the IO is being aborted by the driver. */
10085 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
10087 cmd = &iocbq->iocb;
10088 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
10089 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
10090 if (phba->sli_rev == LPFC_SLI_REV4)
10091 abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
10093 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
10094 abtsiocb->iocb.ulpLe = 1;
10095 abtsiocb->iocb.ulpClass = cmd->ulpClass;
10096 abtsiocb->vport = vport;
10098 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
10099 abtsiocb->fcp_wqidx = iocbq->fcp_wqidx;
10100 if (iocbq->iocb_flag & LPFC_IO_FCP)
10101 abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
10103 if (lpfc_is_link_up(phba))
10104 abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
10106 abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
10108 /* Setup callback routine and issue the command. */
10109 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
10110 ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
10112 if (ret_val == IOCB_ERROR) {
10113 lpfc_sli_release_iocbq(phba, abtsiocb);
10123 * lpfc_sli_abort_taskmgmt - issue abort for all commands on a host/target/LUN
10124 * @vport: Pointer to virtual port.
10125 * @pring: Pointer to driver SLI ring object.
10126 * @tgt_id: SCSI ID of the target.
10127 * @lun_id: LUN ID of the scsi device.
10128 * @taskmgmt_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
10130 * This function sends an abort command for every SCSI command
10131 * associated with the given virtual port pending on the ring
10132 * filtered by lpfc_sli_validate_fcp_iocb function.
10133 * When taskmgmt_cmd == LPFC_CTX_LUN, the function sends abort only to the
10134 * FCP iocbs associated with lun specified by tgt_id and lun_id
10136 * When taskmgmt_cmd == LPFC_CTX_TGT, the function sends abort only to the
10137 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
10138 * When taskmgmt_cmd == LPFC_CTX_HOST, the function sends abort to all
10139 * FCP iocbs associated with virtual port.
10140 * This function returns number of iocbs it aborted .
10141 * This function is called with no locks held right after a taskmgmt
10145 lpfc_sli_abort_taskmgmt(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
10146 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd cmd)
10148 struct lpfc_hba *phba = vport->phba;
10149 struct lpfc_iocbq *abtsiocbq;
10150 struct lpfc_iocbq *iocbq;
10152 int sum, i, ret_val;
10153 unsigned long iflags;
10154 struct lpfc_sli_ring *pring_s4;
10155 uint32_t ring_number;
10157 spin_lock_irq(&phba->hbalock);
10159 /* all I/Os are in process of being flushed */
10160 if (phba->hba_flag & HBA_FCP_IOQ_FLUSH) {
10161 spin_unlock_irq(&phba->hbalock);
10166 for (i = 1; i <= phba->sli.last_iotag; i++) {
10167 iocbq = phba->sli.iocbq_lookup[i];
10169 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
10174 * If the iocbq is already being aborted, don't take a second
10175 * action, but do count it.
10177 if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
10180 /* issue ABTS for this IOCB based on iotag */
10181 abtsiocbq = __lpfc_sli_get_iocbq(phba);
10182 if (abtsiocbq == NULL)
10185 icmd = &iocbq->iocb;
10186 abtsiocbq->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
10187 abtsiocbq->iocb.un.acxri.abortContextTag = icmd->ulpContext;
10188 if (phba->sli_rev == LPFC_SLI_REV4)
10189 abtsiocbq->iocb.un.acxri.abortIoTag =
10190 iocbq->sli4_xritag;
10192 abtsiocbq->iocb.un.acxri.abortIoTag = icmd->ulpIoTag;
10193 abtsiocbq->iocb.ulpLe = 1;
10194 abtsiocbq->iocb.ulpClass = icmd->ulpClass;
10195 abtsiocbq->vport = vport;
10197 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
10198 abtsiocbq->fcp_wqidx = iocbq->fcp_wqidx;
10199 if (iocbq->iocb_flag & LPFC_IO_FCP)
10200 abtsiocbq->iocb_flag |= LPFC_USE_FCPWQIDX;
10202 if (lpfc_is_link_up(phba))
10203 abtsiocbq->iocb.ulpCommand = CMD_ABORT_XRI_CN;
10205 abtsiocbq->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
10207 /* Setup callback routine and issue the command. */
10208 abtsiocbq->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
10211 * Indicate the IO is being aborted by the driver and set
10212 * the caller's flag into the aborted IO.
10214 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
10216 if (phba->sli_rev == LPFC_SLI_REV4) {
10217 ring_number = MAX_SLI3_CONFIGURED_RINGS +
10219 pring_s4 = &phba->sli.ring[ring_number];
10220 /* Note: both hbalock and ring_lock must be set here */
10221 spin_lock_irqsave(&pring_s4->ring_lock, iflags);
10222 ret_val = __lpfc_sli_issue_iocb(phba, pring_s4->ringno,
10224 spin_unlock_irqrestore(&pring_s4->ring_lock, iflags);
10226 ret_val = __lpfc_sli_issue_iocb(phba, pring->ringno,
10231 if (ret_val == IOCB_ERROR)
10232 __lpfc_sli_release_iocbq(phba, abtsiocbq);
10236 spin_unlock_irq(&phba->hbalock);
10241 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
10242 * @phba: Pointer to HBA context object.
10243 * @cmdiocbq: Pointer to command iocb.
10244 * @rspiocbq: Pointer to response iocb.
10246 * This function is the completion handler for iocbs issued using
10247 * lpfc_sli_issue_iocb_wait function. This function is called by the
10248 * ring event handler function without any lock held. This function
10249 * can be called from both worker thread context and interrupt
10250 * context. This function also can be called from other thread which
10251 * cleans up the SLI layer objects.
10252 * This function copy the contents of the response iocb to the
10253 * response iocb memory object provided by the caller of
10254 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
10255 * sleeps for the iocb completion.
10258 lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
10259 struct lpfc_iocbq *cmdiocbq,
10260 struct lpfc_iocbq *rspiocbq)
10262 wait_queue_head_t *pdone_q;
10263 unsigned long iflags;
10264 struct lpfc_scsi_buf *lpfc_cmd;
10266 spin_lock_irqsave(&phba->hbalock, iflags);
10267 if (cmdiocbq->iocb_flag & LPFC_IO_WAKE_TMO) {
10270 * A time out has occurred for the iocb. If a time out
10271 * completion handler has been supplied, call it. Otherwise,
10272 * just free the iocbq.
10275 spin_unlock_irqrestore(&phba->hbalock, iflags);
10276 cmdiocbq->iocb_cmpl = cmdiocbq->wait_iocb_cmpl;
10277 cmdiocbq->wait_iocb_cmpl = NULL;
10278 if (cmdiocbq->iocb_cmpl)
10279 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, NULL);
10281 lpfc_sli_release_iocbq(phba, cmdiocbq);
10285 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
10286 if (cmdiocbq->context2 && rspiocbq)
10287 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
10288 &rspiocbq->iocb, sizeof(IOCB_t));
10290 /* Set the exchange busy flag for task management commands */
10291 if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) &&
10292 !(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) {
10293 lpfc_cmd = container_of(cmdiocbq, struct lpfc_scsi_buf,
10295 lpfc_cmd->exch_busy = rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY;
10298 pdone_q = cmdiocbq->context_un.wait_queue;
10301 spin_unlock_irqrestore(&phba->hbalock, iflags);
10306 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
10307 * @phba: Pointer to HBA context object..
10308 * @piocbq: Pointer to command iocb.
10309 * @flag: Flag to test.
10311 * This routine grabs the hbalock and then test the iocb_flag to
10312 * see if the passed in flag is set.
10314 * 1 if flag is set.
10315 * 0 if flag is not set.
10318 lpfc_chk_iocb_flg(struct lpfc_hba *phba,
10319 struct lpfc_iocbq *piocbq, uint32_t flag)
10321 unsigned long iflags;
10324 spin_lock_irqsave(&phba->hbalock, iflags);
10325 ret = piocbq->iocb_flag & flag;
10326 spin_unlock_irqrestore(&phba->hbalock, iflags);
10332 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
10333 * @phba: Pointer to HBA context object..
10334 * @pring: Pointer to sli ring.
10335 * @piocb: Pointer to command iocb.
10336 * @prspiocbq: Pointer to response iocb.
10337 * @timeout: Timeout in number of seconds.
10339 * This function issues the iocb to firmware and waits for the
10340 * iocb to complete. The iocb_cmpl field of the shall be used
10341 * to handle iocbs which time out. If the field is NULL, the
10342 * function shall free the iocbq structure. If more clean up is
10343 * needed, the caller is expected to provide a completion function
10344 * that will provide the needed clean up. If the iocb command is
10345 * not completed within timeout seconds, the function will either
10346 * free the iocbq structure (if iocb_cmpl == NULL) or execute the
10347 * completion function set in the iocb_cmpl field and then return
10348 * a status of IOCB_TIMEDOUT. The caller should not free the iocb
10349 * resources if this function returns IOCB_TIMEDOUT.
10350 * The function waits for the iocb completion using an
10351 * non-interruptible wait.
10352 * This function will sleep while waiting for iocb completion.
10353 * So, this function should not be called from any context which
10354 * does not allow sleeping. Due to the same reason, this function
10355 * cannot be called with interrupt disabled.
10356 * This function assumes that the iocb completions occur while
10357 * this function sleep. So, this function cannot be called from
10358 * the thread which process iocb completion for this ring.
10359 * This function clears the iocb_flag of the iocb object before
10360 * issuing the iocb and the iocb completion handler sets this
10361 * flag and wakes this thread when the iocb completes.
10362 * The contents of the response iocb will be copied to prspiocbq
10363 * by the completion handler when the command completes.
10364 * This function returns IOCB_SUCCESS when success.
10365 * This function is called with no lock held.
10368 lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
10369 uint32_t ring_number,
10370 struct lpfc_iocbq *piocb,
10371 struct lpfc_iocbq *prspiocbq,
10374 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
10375 long timeleft, timeout_req = 0;
10376 int retval = IOCB_SUCCESS;
10378 struct lpfc_iocbq *iocb;
10380 int txcmplq_cnt = 0;
10381 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
10382 unsigned long iflags;
10383 bool iocb_completed = true;
10386 * If the caller has provided a response iocbq buffer, then context2
10387 * is NULL or its an error.
10390 if (piocb->context2)
10392 piocb->context2 = prspiocbq;
10395 piocb->wait_iocb_cmpl = piocb->iocb_cmpl;
10396 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
10397 piocb->context_un.wait_queue = &done_q;
10398 piocb->iocb_flag &= ~(LPFC_IO_WAKE | LPFC_IO_WAKE_TMO);
10400 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
10401 if (lpfc_readl(phba->HCregaddr, &creg_val))
10403 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
10404 writel(creg_val, phba->HCregaddr);
10405 readl(phba->HCregaddr); /* flush */
10408 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb,
10409 SLI_IOCB_RET_IOCB);
10410 if (retval == IOCB_SUCCESS) {
10411 timeout_req = msecs_to_jiffies(timeout * 1000);
10412 timeleft = wait_event_timeout(done_q,
10413 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
10415 spin_lock_irqsave(&phba->hbalock, iflags);
10416 if (!(piocb->iocb_flag & LPFC_IO_WAKE)) {
10419 * IOCB timed out. Inform the wake iocb wait
10420 * completion function and set local status
10423 iocb_completed = false;
10424 piocb->iocb_flag |= LPFC_IO_WAKE_TMO;
10426 spin_unlock_irqrestore(&phba->hbalock, iflags);
10427 if (iocb_completed) {
10428 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10429 "0331 IOCB wake signaled\n");
10430 /* Note: we are not indicating if the IOCB has a success
10431 * status or not - that's for the caller to check.
10432 * IOCB_SUCCESS means just that the command was sent and
10433 * completed. Not that it completed successfully.
10435 } else if (timeleft == 0) {
10436 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10437 "0338 IOCB wait timeout error - no "
10438 "wake response Data x%x\n", timeout);
10439 retval = IOCB_TIMEDOUT;
10441 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10442 "0330 IOCB wake NOT set, "
10444 timeout, (timeleft / jiffies));
10445 retval = IOCB_TIMEDOUT;
10447 } else if (retval == IOCB_BUSY) {
10448 if (phba->cfg_log_verbose & LOG_SLI) {
10449 list_for_each_entry(iocb, &pring->txq, list) {
10452 list_for_each_entry(iocb, &pring->txcmplq, list) {
10455 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10456 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
10457 phba->iocb_cnt, txq_cnt, txcmplq_cnt);
10461 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10462 "0332 IOCB wait issue failed, Data x%x\n",
10464 retval = IOCB_ERROR;
10467 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
10468 if (lpfc_readl(phba->HCregaddr, &creg_val))
10470 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
10471 writel(creg_val, phba->HCregaddr);
10472 readl(phba->HCregaddr); /* flush */
10476 piocb->context2 = NULL;
10478 piocb->context_un.wait_queue = NULL;
10479 piocb->iocb_cmpl = NULL;
10484 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
10485 * @phba: Pointer to HBA context object.
10486 * @pmboxq: Pointer to driver mailbox object.
10487 * @timeout: Timeout in number of seconds.
10489 * This function issues the mailbox to firmware and waits for the
10490 * mailbox command to complete. If the mailbox command is not
10491 * completed within timeout seconds, it returns MBX_TIMEOUT.
10492 * The function waits for the mailbox completion using an
10493 * interruptible wait. If the thread is woken up due to a
10494 * signal, MBX_TIMEOUT error is returned to the caller. Caller
10495 * should not free the mailbox resources, if this function returns
10497 * This function will sleep while waiting for mailbox completion.
10498 * So, this function should not be called from any context which
10499 * does not allow sleeping. Due to the same reason, this function
10500 * cannot be called with interrupt disabled.
10501 * This function assumes that the mailbox completion occurs while
10502 * this function sleep. So, this function cannot be called from
10503 * the worker thread which processes mailbox completion.
10504 * This function is called in the context of HBA management
10506 * This function returns MBX_SUCCESS when successful.
10507 * This function is called with no lock held.
10510 lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
10513 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
10514 MAILBOX_t *mb = NULL;
10516 unsigned long flag;
10518 /* The caller might set context1 for extended buffer */
10519 if (pmboxq->context1)
10520 mb = (MAILBOX_t *)pmboxq->context1;
10522 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
10523 /* setup wake call as IOCB callback */
10524 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
10525 /* setup context field to pass wait_queue pointer to wake function */
10526 pmboxq->context1 = &done_q;
10528 /* now issue the command */
10529 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
10530 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
10531 wait_event_interruptible_timeout(done_q,
10532 pmboxq->mbox_flag & LPFC_MBX_WAKE,
10533 msecs_to_jiffies(timeout * 1000));
10535 spin_lock_irqsave(&phba->hbalock, flag);
10536 /* restore the possible extended buffer for free resource */
10537 pmboxq->context1 = (uint8_t *)mb;
10539 * if LPFC_MBX_WAKE flag is set the mailbox is completed
10540 * else do not free the resources.
10542 if (pmboxq->mbox_flag & LPFC_MBX_WAKE) {
10543 retval = MBX_SUCCESS;
10545 retval = MBX_TIMEOUT;
10546 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10548 spin_unlock_irqrestore(&phba->hbalock, flag);
10550 /* restore the possible extended buffer for free resource */
10551 pmboxq->context1 = (uint8_t *)mb;
10558 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
10559 * @phba: Pointer to HBA context.
10561 * This function is called to shutdown the driver's mailbox sub-system.
10562 * It first marks the mailbox sub-system is in a block state to prevent
10563 * the asynchronous mailbox command from issued off the pending mailbox
10564 * command queue. If the mailbox command sub-system shutdown is due to
10565 * HBA error conditions such as EEH or ERATT, this routine shall invoke
10566 * the mailbox sub-system flush routine to forcefully bring down the
10567 * mailbox sub-system. Otherwise, if it is due to normal condition (such
10568 * as with offline or HBA function reset), this routine will wait for the
10569 * outstanding mailbox command to complete before invoking the mailbox
10570 * sub-system flush routine to gracefully bring down mailbox sub-system.
10573 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba, int mbx_action)
10575 struct lpfc_sli *psli = &phba->sli;
10576 unsigned long timeout;
10578 if (mbx_action == LPFC_MBX_NO_WAIT) {
10579 /* delay 100ms for port state */
10581 lpfc_sli_mbox_sys_flush(phba);
10584 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
10586 spin_lock_irq(&phba->hbalock);
10587 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
10589 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
10590 /* Determine how long we might wait for the active mailbox
10591 * command to be gracefully completed by firmware.
10593 if (phba->sli.mbox_active)
10594 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
10595 phba->sli.mbox_active) *
10597 spin_unlock_irq(&phba->hbalock);
10599 while (phba->sli.mbox_active) {
10600 /* Check active mailbox complete status every 2ms */
10602 if (time_after(jiffies, timeout))
10603 /* Timeout, let the mailbox flush routine to
10604 * forcefully release active mailbox command
10609 spin_unlock_irq(&phba->hbalock);
10611 lpfc_sli_mbox_sys_flush(phba);
10615 * lpfc_sli_eratt_read - read sli-3 error attention events
10616 * @phba: Pointer to HBA context.
10618 * This function is called to read the SLI3 device error attention registers
10619 * for possible error attention events. The caller must hold the hostlock
10620 * with spin_lock_irq().
10622 * This function returns 1 when there is Error Attention in the Host Attention
10623 * Register and returns 0 otherwise.
10626 lpfc_sli_eratt_read(struct lpfc_hba *phba)
10630 /* Read chip Host Attention (HA) register */
10631 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10634 if (ha_copy & HA_ERATT) {
10635 /* Read host status register to retrieve error event */
10636 if (lpfc_sli_read_hs(phba))
10639 /* Check if there is a deferred error condition is active */
10640 if ((HS_FFER1 & phba->work_hs) &&
10641 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
10642 HS_FFER6 | HS_FFER7 | HS_FFER8) & phba->work_hs)) {
10643 phba->hba_flag |= DEFER_ERATT;
10644 /* Clear all interrupt enable conditions */
10645 writel(0, phba->HCregaddr);
10646 readl(phba->HCregaddr);
10649 /* Set the driver HA work bitmap */
10650 phba->work_ha |= HA_ERATT;
10651 /* Indicate polling handles this ERATT */
10652 phba->hba_flag |= HBA_ERATT_HANDLED;
10658 /* Set the driver HS work bitmap */
10659 phba->work_hs |= UNPLUG_ERR;
10660 /* Set the driver HA work bitmap */
10661 phba->work_ha |= HA_ERATT;
10662 /* Indicate polling handles this ERATT */
10663 phba->hba_flag |= HBA_ERATT_HANDLED;
10668 * lpfc_sli4_eratt_read - read sli-4 error attention events
10669 * @phba: Pointer to HBA context.
10671 * This function is called to read the SLI4 device error attention registers
10672 * for possible error attention events. The caller must hold the hostlock
10673 * with spin_lock_irq().
10675 * This function returns 1 when there is Error Attention in the Host Attention
10676 * Register and returns 0 otherwise.
10679 lpfc_sli4_eratt_read(struct lpfc_hba *phba)
10681 uint32_t uerr_sta_hi, uerr_sta_lo;
10682 uint32_t if_type, portsmphr;
10683 struct lpfc_register portstat_reg;
10686 * For now, use the SLI4 device internal unrecoverable error
10687 * registers for error attention. This can be changed later.
10689 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10691 case LPFC_SLI_INTF_IF_TYPE_0:
10692 if (lpfc_readl(phba->sli4_hba.u.if_type0.UERRLOregaddr,
10694 lpfc_readl(phba->sli4_hba.u.if_type0.UERRHIregaddr,
10696 phba->work_hs |= UNPLUG_ERR;
10697 phba->work_ha |= HA_ERATT;
10698 phba->hba_flag |= HBA_ERATT_HANDLED;
10701 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
10702 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
10703 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10704 "1423 HBA Unrecoverable error: "
10705 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
10706 "ue_mask_lo_reg=0x%x, "
10707 "ue_mask_hi_reg=0x%x\n",
10708 uerr_sta_lo, uerr_sta_hi,
10709 phba->sli4_hba.ue_mask_lo,
10710 phba->sli4_hba.ue_mask_hi);
10711 phba->work_status[0] = uerr_sta_lo;
10712 phba->work_status[1] = uerr_sta_hi;
10713 phba->work_ha |= HA_ERATT;
10714 phba->hba_flag |= HBA_ERATT_HANDLED;
10718 case LPFC_SLI_INTF_IF_TYPE_2:
10719 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
10720 &portstat_reg.word0) ||
10721 lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
10723 phba->work_hs |= UNPLUG_ERR;
10724 phba->work_ha |= HA_ERATT;
10725 phba->hba_flag |= HBA_ERATT_HANDLED;
10728 if (bf_get(lpfc_sliport_status_err, &portstat_reg)) {
10729 phba->work_status[0] =
10730 readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
10731 phba->work_status[1] =
10732 readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
10733 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10734 "2885 Port Status Event: "
10735 "port status reg 0x%x, "
10736 "port smphr reg 0x%x, "
10737 "error 1=0x%x, error 2=0x%x\n",
10738 portstat_reg.word0,
10740 phba->work_status[0],
10741 phba->work_status[1]);
10742 phba->work_ha |= HA_ERATT;
10743 phba->hba_flag |= HBA_ERATT_HANDLED;
10747 case LPFC_SLI_INTF_IF_TYPE_1:
10749 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10750 "2886 HBA Error Attention on unsupported "
10751 "if type %d.", if_type);
10759 * lpfc_sli_check_eratt - check error attention events
10760 * @phba: Pointer to HBA context.
10762 * This function is called from timer soft interrupt context to check HBA's
10763 * error attention register bit for error attention events.
10765 * This function returns 1 when there is Error Attention in the Host Attention
10766 * Register and returns 0 otherwise.
10769 lpfc_sli_check_eratt(struct lpfc_hba *phba)
10773 /* If somebody is waiting to handle an eratt, don't process it
10774 * here. The brdkill function will do this.
10776 if (phba->link_flag & LS_IGNORE_ERATT)
10779 /* Check if interrupt handler handles this ERATT */
10780 spin_lock_irq(&phba->hbalock);
10781 if (phba->hba_flag & HBA_ERATT_HANDLED) {
10782 /* Interrupt handler has handled ERATT */
10783 spin_unlock_irq(&phba->hbalock);
10788 * If there is deferred error attention, do not check for error
10791 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10792 spin_unlock_irq(&phba->hbalock);
10796 /* If PCI channel is offline, don't process it */
10797 if (unlikely(pci_channel_offline(phba->pcidev))) {
10798 spin_unlock_irq(&phba->hbalock);
10802 switch (phba->sli_rev) {
10803 case LPFC_SLI_REV2:
10804 case LPFC_SLI_REV3:
10805 /* Read chip Host Attention (HA) register */
10806 ha_copy = lpfc_sli_eratt_read(phba);
10808 case LPFC_SLI_REV4:
10809 /* Read device Uncoverable Error (UERR) registers */
10810 ha_copy = lpfc_sli4_eratt_read(phba);
10813 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10814 "0299 Invalid SLI revision (%d)\n",
10819 spin_unlock_irq(&phba->hbalock);
10825 * lpfc_intr_state_check - Check device state for interrupt handling
10826 * @phba: Pointer to HBA context.
10828 * This inline routine checks whether a device or its PCI slot is in a state
10829 * that the interrupt should be handled.
10831 * This function returns 0 if the device or the PCI slot is in a state that
10832 * interrupt should be handled, otherwise -EIO.
10835 lpfc_intr_state_check(struct lpfc_hba *phba)
10837 /* If the pci channel is offline, ignore all the interrupts */
10838 if (unlikely(pci_channel_offline(phba->pcidev)))
10841 /* Update device level interrupt statistics */
10842 phba->sli.slistat.sli_intr++;
10844 /* Ignore all interrupts during initialization. */
10845 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
10852 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
10853 * @irq: Interrupt number.
10854 * @dev_id: The device context pointer.
10856 * This function is directly called from the PCI layer as an interrupt
10857 * service routine when device with SLI-3 interface spec is enabled with
10858 * MSI-X multi-message interrupt mode and there are slow-path events in
10859 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
10860 * interrupt mode, this function is called as part of the device-level
10861 * interrupt handler. When the PCI slot is in error recovery or the HBA
10862 * is undergoing initialization, the interrupt handler will not process
10863 * the interrupt. The link attention and ELS ring attention events are
10864 * handled by the worker thread. The interrupt handler signals the worker
10865 * thread and returns for these events. This function is called without
10866 * any lock held. It gets the hbalock to access and update SLI data
10869 * This function returns IRQ_HANDLED when interrupt is handled else it
10870 * returns IRQ_NONE.
10873 lpfc_sli_sp_intr_handler(int irq, void *dev_id)
10875 struct lpfc_hba *phba;
10876 uint32_t ha_copy, hc_copy;
10877 uint32_t work_ha_copy;
10878 unsigned long status;
10879 unsigned long iflag;
10882 MAILBOX_t *mbox, *pmbox;
10883 struct lpfc_vport *vport;
10884 struct lpfc_nodelist *ndlp;
10885 struct lpfc_dmabuf *mp;
10890 * Get the driver's phba structure from the dev_id and
10891 * assume the HBA is not interrupting.
10893 phba = (struct lpfc_hba *)dev_id;
10895 if (unlikely(!phba))
10899 * Stuff needs to be attented to when this function is invoked as an
10900 * individual interrupt handler in MSI-X multi-message interrupt mode
10902 if (phba->intr_type == MSIX) {
10903 /* Check device state for handling interrupt */
10904 if (lpfc_intr_state_check(phba))
10906 /* Need to read HA REG for slow-path events */
10907 spin_lock_irqsave(&phba->hbalock, iflag);
10908 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10910 /* If somebody is waiting to handle an eratt don't process it
10911 * here. The brdkill function will do this.
10913 if (phba->link_flag & LS_IGNORE_ERATT)
10914 ha_copy &= ~HA_ERATT;
10915 /* Check the need for handling ERATT in interrupt handler */
10916 if (ha_copy & HA_ERATT) {
10917 if (phba->hba_flag & HBA_ERATT_HANDLED)
10918 /* ERATT polling has handled ERATT */
10919 ha_copy &= ~HA_ERATT;
10921 /* Indicate interrupt handler handles ERATT */
10922 phba->hba_flag |= HBA_ERATT_HANDLED;
10926 * If there is deferred error attention, do not check for any
10929 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10930 spin_unlock_irqrestore(&phba->hbalock, iflag);
10934 /* Clear up only attention source related to slow-path */
10935 if (lpfc_readl(phba->HCregaddr, &hc_copy))
10938 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
10939 HC_LAINT_ENA | HC_ERINT_ENA),
10941 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
10943 writel(hc_copy, phba->HCregaddr);
10944 readl(phba->HAregaddr); /* flush */
10945 spin_unlock_irqrestore(&phba->hbalock, iflag);
10947 ha_copy = phba->ha_copy;
10949 work_ha_copy = ha_copy & phba->work_ha_mask;
10951 if (work_ha_copy) {
10952 if (work_ha_copy & HA_LATT) {
10953 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
10955 * Turn off Link Attention interrupts
10956 * until CLEAR_LA done
10958 spin_lock_irqsave(&phba->hbalock, iflag);
10959 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
10960 if (lpfc_readl(phba->HCregaddr, &control))
10962 control &= ~HC_LAINT_ENA;
10963 writel(control, phba->HCregaddr);
10964 readl(phba->HCregaddr); /* flush */
10965 spin_unlock_irqrestore(&phba->hbalock, iflag);
10968 work_ha_copy &= ~HA_LATT;
10971 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
10973 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
10974 * the only slow ring.
10976 status = (work_ha_copy &
10977 (HA_RXMASK << (4*LPFC_ELS_RING)));
10978 status >>= (4*LPFC_ELS_RING);
10979 if (status & HA_RXMASK) {
10980 spin_lock_irqsave(&phba->hbalock, iflag);
10981 if (lpfc_readl(phba->HCregaddr, &control))
10984 lpfc_debugfs_slow_ring_trc(phba,
10985 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
10987 (uint32_t)phba->sli.slistat.sli_intr);
10989 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
10990 lpfc_debugfs_slow_ring_trc(phba,
10991 "ISR Disable ring:"
10992 "pwork:x%x hawork:x%x wait:x%x",
10993 phba->work_ha, work_ha_copy,
10994 (uint32_t)((unsigned long)
10995 &phba->work_waitq));
10998 ~(HC_R0INT_ENA << LPFC_ELS_RING);
10999 writel(control, phba->HCregaddr);
11000 readl(phba->HCregaddr); /* flush */
11003 lpfc_debugfs_slow_ring_trc(phba,
11004 "ISR slow ring: pwork:"
11005 "x%x hawork:x%x wait:x%x",
11006 phba->work_ha, work_ha_copy,
11007 (uint32_t)((unsigned long)
11008 &phba->work_waitq));
11010 spin_unlock_irqrestore(&phba->hbalock, iflag);
11013 spin_lock_irqsave(&phba->hbalock, iflag);
11014 if (work_ha_copy & HA_ERATT) {
11015 if (lpfc_sli_read_hs(phba))
11018 * Check if there is a deferred error condition
11021 if ((HS_FFER1 & phba->work_hs) &&
11022 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
11023 HS_FFER6 | HS_FFER7 | HS_FFER8) &
11025 phba->hba_flag |= DEFER_ERATT;
11026 /* Clear all interrupt enable conditions */
11027 writel(0, phba->HCregaddr);
11028 readl(phba->HCregaddr);
11032 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
11033 pmb = phba->sli.mbox_active;
11034 pmbox = &pmb->u.mb;
11036 vport = pmb->vport;
11038 /* First check out the status word */
11039 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
11040 if (pmbox->mbxOwner != OWN_HOST) {
11041 spin_unlock_irqrestore(&phba->hbalock, iflag);
11043 * Stray Mailbox Interrupt, mbxCommand <cmd>
11044 * mbxStatus <status>
11046 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
11048 "(%d):0304 Stray Mailbox "
11049 "Interrupt mbxCommand x%x "
11051 (vport ? vport->vpi : 0),
11054 /* clear mailbox attention bit */
11055 work_ha_copy &= ~HA_MBATT;
11057 phba->sli.mbox_active = NULL;
11058 spin_unlock_irqrestore(&phba->hbalock, iflag);
11059 phba->last_completion_time = jiffies;
11060 del_timer(&phba->sli.mbox_tmo);
11061 if (pmb->mbox_cmpl) {
11062 lpfc_sli_pcimem_bcopy(mbox, pmbox,
11064 if (pmb->out_ext_byte_len &&
11066 lpfc_sli_pcimem_bcopy(
11069 pmb->out_ext_byte_len);
11071 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
11072 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
11074 lpfc_debugfs_disc_trc(vport,
11075 LPFC_DISC_TRC_MBOX_VPORT,
11076 "MBOX dflt rpi: : "
11077 "status:x%x rpi:x%x",
11078 (uint32_t)pmbox->mbxStatus,
11079 pmbox->un.varWords[0], 0);
11081 if (!pmbox->mbxStatus) {
11082 mp = (struct lpfc_dmabuf *)
11084 ndlp = (struct lpfc_nodelist *)
11087 /* Reg_LOGIN of dflt RPI was
11088 * successful. new lets get
11089 * rid of the RPI using the
11090 * same mbox buffer.
11092 lpfc_unreg_login(phba,
11094 pmbox->un.varWords[0],
11097 lpfc_mbx_cmpl_dflt_rpi;
11098 pmb->context1 = mp;
11099 pmb->context2 = ndlp;
11100 pmb->vport = vport;
11101 rc = lpfc_sli_issue_mbox(phba,
11104 if (rc != MBX_BUSY)
11105 lpfc_printf_log(phba,
11107 LOG_MBOX | LOG_SLI,
11108 "0350 rc should have"
11109 "been MBX_BUSY\n");
11110 if (rc != MBX_NOT_FINISHED)
11111 goto send_current_mbox;
11115 &phba->pport->work_port_lock,
11117 phba->pport->work_port_events &=
11119 spin_unlock_irqrestore(
11120 &phba->pport->work_port_lock,
11122 lpfc_mbox_cmpl_put(phba, pmb);
11125 spin_unlock_irqrestore(&phba->hbalock, iflag);
11127 if ((work_ha_copy & HA_MBATT) &&
11128 (phba->sli.mbox_active == NULL)) {
11130 /* Process next mailbox command if there is one */
11132 rc = lpfc_sli_issue_mbox(phba, NULL,
11134 } while (rc == MBX_NOT_FINISHED);
11135 if (rc != MBX_SUCCESS)
11136 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
11137 LOG_SLI, "0349 rc should be "
11141 spin_lock_irqsave(&phba->hbalock, iflag);
11142 phba->work_ha |= work_ha_copy;
11143 spin_unlock_irqrestore(&phba->hbalock, iflag);
11144 lpfc_worker_wake_up(phba);
11146 return IRQ_HANDLED;
11148 spin_unlock_irqrestore(&phba->hbalock, iflag);
11149 return IRQ_HANDLED;
11151 } /* lpfc_sli_sp_intr_handler */
11154 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
11155 * @irq: Interrupt number.
11156 * @dev_id: The device context pointer.
11158 * This function is directly called from the PCI layer as an interrupt
11159 * service routine when device with SLI-3 interface spec is enabled with
11160 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
11161 * ring event in the HBA. However, when the device is enabled with either
11162 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
11163 * device-level interrupt handler. When the PCI slot is in error recovery
11164 * or the HBA is undergoing initialization, the interrupt handler will not
11165 * process the interrupt. The SCSI FCP fast-path ring event are handled in
11166 * the intrrupt context. This function is called without any lock held.
11167 * It gets the hbalock to access and update SLI data structures.
11169 * This function returns IRQ_HANDLED when interrupt is handled else it
11170 * returns IRQ_NONE.
11173 lpfc_sli_fp_intr_handler(int irq, void *dev_id)
11175 struct lpfc_hba *phba;
11177 unsigned long status;
11178 unsigned long iflag;
11180 /* Get the driver's phba structure from the dev_id and
11181 * assume the HBA is not interrupting.
11183 phba = (struct lpfc_hba *) dev_id;
11185 if (unlikely(!phba))
11189 * Stuff needs to be attented to when this function is invoked as an
11190 * individual interrupt handler in MSI-X multi-message interrupt mode
11192 if (phba->intr_type == MSIX) {
11193 /* Check device state for handling interrupt */
11194 if (lpfc_intr_state_check(phba))
11196 /* Need to read HA REG for FCP ring and other ring events */
11197 if (lpfc_readl(phba->HAregaddr, &ha_copy))
11198 return IRQ_HANDLED;
11199 /* Clear up only attention source related to fast-path */
11200 spin_lock_irqsave(&phba->hbalock, iflag);
11202 * If there is deferred error attention, do not check for
11205 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
11206 spin_unlock_irqrestore(&phba->hbalock, iflag);
11209 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
11211 readl(phba->HAregaddr); /* flush */
11212 spin_unlock_irqrestore(&phba->hbalock, iflag);
11214 ha_copy = phba->ha_copy;
11217 * Process all events on FCP ring. Take the optimized path for FCP IO.
11219 ha_copy &= ~(phba->work_ha_mask);
11221 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
11222 status >>= (4*LPFC_FCP_RING);
11223 if (status & HA_RXMASK)
11224 lpfc_sli_handle_fast_ring_event(phba,
11225 &phba->sli.ring[LPFC_FCP_RING],
11228 if (phba->cfg_multi_ring_support == 2) {
11230 * Process all events on extra ring. Take the optimized path
11231 * for extra ring IO.
11233 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
11234 status >>= (4*LPFC_EXTRA_RING);
11235 if (status & HA_RXMASK) {
11236 lpfc_sli_handle_fast_ring_event(phba,
11237 &phba->sli.ring[LPFC_EXTRA_RING],
11241 return IRQ_HANDLED;
11242 } /* lpfc_sli_fp_intr_handler */
11245 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
11246 * @irq: Interrupt number.
11247 * @dev_id: The device context pointer.
11249 * This function is the HBA device-level interrupt handler to device with
11250 * SLI-3 interface spec, called from the PCI layer when either MSI or
11251 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
11252 * requires driver attention. This function invokes the slow-path interrupt
11253 * attention handling function and fast-path interrupt attention handling
11254 * function in turn to process the relevant HBA attention events. This
11255 * function is called without any lock held. It gets the hbalock to access
11256 * and update SLI data structures.
11258 * This function returns IRQ_HANDLED when interrupt is handled, else it
11259 * returns IRQ_NONE.
11262 lpfc_sli_intr_handler(int irq, void *dev_id)
11264 struct lpfc_hba *phba;
11265 irqreturn_t sp_irq_rc, fp_irq_rc;
11266 unsigned long status1, status2;
11270 * Get the driver's phba structure from the dev_id and
11271 * assume the HBA is not interrupting.
11273 phba = (struct lpfc_hba *) dev_id;
11275 if (unlikely(!phba))
11278 /* Check device state for handling interrupt */
11279 if (lpfc_intr_state_check(phba))
11282 spin_lock(&phba->hbalock);
11283 if (lpfc_readl(phba->HAregaddr, &phba->ha_copy)) {
11284 spin_unlock(&phba->hbalock);
11285 return IRQ_HANDLED;
11288 if (unlikely(!phba->ha_copy)) {
11289 spin_unlock(&phba->hbalock);
11291 } else if (phba->ha_copy & HA_ERATT) {
11292 if (phba->hba_flag & HBA_ERATT_HANDLED)
11293 /* ERATT polling has handled ERATT */
11294 phba->ha_copy &= ~HA_ERATT;
11296 /* Indicate interrupt handler handles ERATT */
11297 phba->hba_flag |= HBA_ERATT_HANDLED;
11301 * If there is deferred error attention, do not check for any interrupt.
11303 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
11304 spin_unlock(&phba->hbalock);
11308 /* Clear attention sources except link and error attentions */
11309 if (lpfc_readl(phba->HCregaddr, &hc_copy)) {
11310 spin_unlock(&phba->hbalock);
11311 return IRQ_HANDLED;
11313 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
11314 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
11316 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
11317 writel(hc_copy, phba->HCregaddr);
11318 readl(phba->HAregaddr); /* flush */
11319 spin_unlock(&phba->hbalock);
11322 * Invokes slow-path host attention interrupt handling as appropriate.
11325 /* status of events with mailbox and link attention */
11326 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
11328 /* status of events with ELS ring */
11329 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
11330 status2 >>= (4*LPFC_ELS_RING);
11332 if (status1 || (status2 & HA_RXMASK))
11333 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
11335 sp_irq_rc = IRQ_NONE;
11338 * Invoke fast-path host attention interrupt handling as appropriate.
11341 /* status of events with FCP ring */
11342 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
11343 status1 >>= (4*LPFC_FCP_RING);
11345 /* status of events with extra ring */
11346 if (phba->cfg_multi_ring_support == 2) {
11347 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
11348 status2 >>= (4*LPFC_EXTRA_RING);
11352 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
11353 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
11355 fp_irq_rc = IRQ_NONE;
11357 /* Return device-level interrupt handling status */
11358 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
11359 } /* lpfc_sli_intr_handler */
11362 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
11363 * @phba: pointer to lpfc hba data structure.
11365 * This routine is invoked by the worker thread to process all the pending
11366 * SLI4 FCP abort XRI events.
11368 void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba)
11370 struct lpfc_cq_event *cq_event;
11372 /* First, declare the fcp xri abort event has been handled */
11373 spin_lock_irq(&phba->hbalock);
11374 phba->hba_flag &= ~FCP_XRI_ABORT_EVENT;
11375 spin_unlock_irq(&phba->hbalock);
11376 /* Now, handle all the fcp xri abort events */
11377 while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) {
11378 /* Get the first event from the head of the event queue */
11379 spin_lock_irq(&phba->hbalock);
11380 list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
11381 cq_event, struct lpfc_cq_event, list);
11382 spin_unlock_irq(&phba->hbalock);
11383 /* Notify aborted XRI for FCP work queue */
11384 lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
11385 /* Free the event processed back to the free pool */
11386 lpfc_sli4_cq_event_release(phba, cq_event);
11391 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
11392 * @phba: pointer to lpfc hba data structure.
11394 * This routine is invoked by the worker thread to process all the pending
11395 * SLI4 els abort xri events.
11397 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
11399 struct lpfc_cq_event *cq_event;
11401 /* First, declare the els xri abort event has been handled */
11402 spin_lock_irq(&phba->hbalock);
11403 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
11404 spin_unlock_irq(&phba->hbalock);
11405 /* Now, handle all the els xri abort events */
11406 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
11407 /* Get the first event from the head of the event queue */
11408 spin_lock_irq(&phba->hbalock);
11409 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
11410 cq_event, struct lpfc_cq_event, list);
11411 spin_unlock_irq(&phba->hbalock);
11412 /* Notify aborted XRI for ELS work queue */
11413 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
11414 /* Free the event processed back to the free pool */
11415 lpfc_sli4_cq_event_release(phba, cq_event);
11420 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
11421 * @phba: pointer to lpfc hba data structure
11422 * @pIocbIn: pointer to the rspiocbq
11423 * @pIocbOut: pointer to the cmdiocbq
11424 * @wcqe: pointer to the complete wcqe
11426 * This routine transfers the fields of a command iocbq to a response iocbq
11427 * by copying all the IOCB fields from command iocbq and transferring the
11428 * completion status information from the complete wcqe.
11431 lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
11432 struct lpfc_iocbq *pIocbIn,
11433 struct lpfc_iocbq *pIocbOut,
11434 struct lpfc_wcqe_complete *wcqe)
11437 unsigned long iflags;
11438 uint32_t status, max_response;
11439 struct lpfc_dmabuf *dmabuf;
11440 struct ulp_bde64 *bpl, bde;
11441 size_t offset = offsetof(struct lpfc_iocbq, iocb);
11443 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
11444 sizeof(struct lpfc_iocbq) - offset);
11445 /* Map WCQE parameters into irspiocb parameters */
11446 status = bf_get(lpfc_wcqe_c_status, wcqe);
11447 pIocbIn->iocb.ulpStatus = (status & LPFC_IOCB_STATUS_MASK);
11448 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
11449 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
11450 pIocbIn->iocb.un.fcpi.fcpi_parm =
11451 pIocbOut->iocb.un.fcpi.fcpi_parm -
11452 wcqe->total_data_placed;
11454 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
11456 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
11457 switch (pIocbOut->iocb.ulpCommand) {
11458 case CMD_ELS_REQUEST64_CR:
11459 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
11460 bpl = (struct ulp_bde64 *)dmabuf->virt;
11461 bde.tus.w = le32_to_cpu(bpl[1].tus.w);
11462 max_response = bde.tus.f.bdeSize;
11464 case CMD_GEN_REQUEST64_CR:
11466 if (!pIocbOut->context3)
11468 numBdes = pIocbOut->iocb.un.genreq64.bdl.bdeSize/
11469 sizeof(struct ulp_bde64);
11470 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
11471 bpl = (struct ulp_bde64 *)dmabuf->virt;
11472 for (i = 0; i < numBdes; i++) {
11473 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
11474 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
11475 max_response += bde.tus.f.bdeSize;
11479 max_response = wcqe->total_data_placed;
11482 if (max_response < wcqe->total_data_placed)
11483 pIocbIn->iocb.un.genreq64.bdl.bdeSize = max_response;
11485 pIocbIn->iocb.un.genreq64.bdl.bdeSize =
11486 wcqe->total_data_placed;
11489 /* Convert BG errors for completion status */
11490 if (status == CQE_STATUS_DI_ERROR) {
11491 pIocbIn->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
11493 if (bf_get(lpfc_wcqe_c_bg_edir, wcqe))
11494 pIocbIn->iocb.un.ulpWord[4] = IOERR_RX_DMA_FAILED;
11496 pIocbIn->iocb.un.ulpWord[4] = IOERR_TX_DMA_FAILED;
11498 pIocbIn->iocb.unsli3.sli3_bg.bgstat = 0;
11499 if (bf_get(lpfc_wcqe_c_bg_ge, wcqe)) /* Guard Check failed */
11500 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11501 BGS_GUARD_ERR_MASK;
11502 if (bf_get(lpfc_wcqe_c_bg_ae, wcqe)) /* App Tag Check failed */
11503 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11504 BGS_APPTAG_ERR_MASK;
11505 if (bf_get(lpfc_wcqe_c_bg_re, wcqe)) /* Ref Tag Check failed */
11506 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11507 BGS_REFTAG_ERR_MASK;
11509 /* Check to see if there was any good data before the error */
11510 if (bf_get(lpfc_wcqe_c_bg_tdpv, wcqe)) {
11511 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11512 BGS_HI_WATER_MARK_PRESENT_MASK;
11513 pIocbIn->iocb.unsli3.sli3_bg.bghm =
11514 wcqe->total_data_placed;
11518 * Set ALL the error bits to indicate we don't know what
11519 * type of error it is.
11521 if (!pIocbIn->iocb.unsli3.sli3_bg.bgstat)
11522 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11523 (BGS_REFTAG_ERR_MASK | BGS_APPTAG_ERR_MASK |
11524 BGS_GUARD_ERR_MASK);
11527 /* Pick up HBA exchange busy condition */
11528 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
11529 spin_lock_irqsave(&phba->hbalock, iflags);
11530 pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY;
11531 spin_unlock_irqrestore(&phba->hbalock, iflags);
11536 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
11537 * @phba: Pointer to HBA context object.
11538 * @wcqe: Pointer to work-queue completion queue entry.
11540 * This routine handles an ELS work-queue completion event and construct
11541 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
11542 * discovery engine to handle.
11544 * Return: Pointer to the receive IOCBQ, NULL otherwise.
11546 static struct lpfc_iocbq *
11547 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
11548 struct lpfc_iocbq *irspiocbq)
11550 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
11551 struct lpfc_iocbq *cmdiocbq;
11552 struct lpfc_wcqe_complete *wcqe;
11553 unsigned long iflags;
11555 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
11556 spin_lock_irqsave(&pring->ring_lock, iflags);
11557 pring->stats.iocb_event++;
11558 /* Look up the ELS command IOCB and create pseudo response IOCB */
11559 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
11560 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11561 spin_unlock_irqrestore(&pring->ring_lock, iflags);
11563 if (unlikely(!cmdiocbq)) {
11564 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11565 "0386 ELS complete with no corresponding "
11566 "cmdiocb: iotag (%d)\n",
11567 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11568 lpfc_sli_release_iocbq(phba, irspiocbq);
11572 /* Fake the irspiocbq and copy necessary response information */
11573 lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe);
11579 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
11580 * @phba: Pointer to HBA context object.
11581 * @cqe: Pointer to mailbox completion queue entry.
11583 * This routine process a mailbox completion queue entry with asynchrous
11586 * Return: true if work posted to worker thread, otherwise false.
11589 lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
11591 struct lpfc_cq_event *cq_event;
11592 unsigned long iflags;
11594 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11595 "0392 Async Event: word0:x%x, word1:x%x, "
11596 "word2:x%x, word3:x%x\n", mcqe->word0,
11597 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
11599 /* Allocate a new internal CQ_EVENT entry */
11600 cq_event = lpfc_sli4_cq_event_alloc(phba);
11602 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11603 "0394 Failed to allocate CQ_EVENT entry\n");
11607 /* Move the CQE into an asynchronous event entry */
11608 memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe));
11609 spin_lock_irqsave(&phba->hbalock, iflags);
11610 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
11611 /* Set the async event flag */
11612 phba->hba_flag |= ASYNC_EVENT;
11613 spin_unlock_irqrestore(&phba->hbalock, iflags);
11619 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
11620 * @phba: Pointer to HBA context object.
11621 * @cqe: Pointer to mailbox completion queue entry.
11623 * This routine process a mailbox completion queue entry with mailbox
11624 * completion event.
11626 * Return: true if work posted to worker thread, otherwise false.
11629 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
11631 uint32_t mcqe_status;
11632 MAILBOX_t *mbox, *pmbox;
11633 struct lpfc_mqe *mqe;
11634 struct lpfc_vport *vport;
11635 struct lpfc_nodelist *ndlp;
11636 struct lpfc_dmabuf *mp;
11637 unsigned long iflags;
11639 bool workposted = false;
11642 /* If not a mailbox complete MCQE, out by checking mailbox consume */
11643 if (!bf_get(lpfc_trailer_completed, mcqe))
11644 goto out_no_mqe_complete;
11646 /* Get the reference to the active mbox command */
11647 spin_lock_irqsave(&phba->hbalock, iflags);
11648 pmb = phba->sli.mbox_active;
11649 if (unlikely(!pmb)) {
11650 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
11651 "1832 No pending MBOX command to handle\n");
11652 spin_unlock_irqrestore(&phba->hbalock, iflags);
11653 goto out_no_mqe_complete;
11655 spin_unlock_irqrestore(&phba->hbalock, iflags);
11657 pmbox = (MAILBOX_t *)&pmb->u.mqe;
11659 vport = pmb->vport;
11661 /* Reset heartbeat timer */
11662 phba->last_completion_time = jiffies;
11663 del_timer(&phba->sli.mbox_tmo);
11665 /* Move mbox data to caller's mailbox region, do endian swapping */
11666 if (pmb->mbox_cmpl && mbox)
11667 lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
11670 * For mcqe errors, conditionally move a modified error code to
11671 * the mbox so that the error will not be missed.
11673 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
11674 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
11675 if (bf_get(lpfc_mqe_status, mqe) == MBX_SUCCESS)
11676 bf_set(lpfc_mqe_status, mqe,
11677 (LPFC_MBX_ERROR_RANGE | mcqe_status));
11679 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
11680 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
11681 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
11682 "MBOX dflt rpi: status:x%x rpi:x%x",
11684 pmbox->un.varWords[0], 0);
11685 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
11686 mp = (struct lpfc_dmabuf *)(pmb->context1);
11687 ndlp = (struct lpfc_nodelist *)pmb->context2;
11688 /* Reg_LOGIN of dflt RPI was successful. Now lets get
11689 * RID of the PPI using the same mbox buffer.
11691 lpfc_unreg_login(phba, vport->vpi,
11692 pmbox->un.varWords[0], pmb);
11693 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
11694 pmb->context1 = mp;
11695 pmb->context2 = ndlp;
11696 pmb->vport = vport;
11697 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
11698 if (rc != MBX_BUSY)
11699 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
11700 LOG_SLI, "0385 rc should "
11701 "have been MBX_BUSY\n");
11702 if (rc != MBX_NOT_FINISHED)
11703 goto send_current_mbox;
11706 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
11707 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
11708 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
11710 /* There is mailbox completion work to do */
11711 spin_lock_irqsave(&phba->hbalock, iflags);
11712 __lpfc_mbox_cmpl_put(phba, pmb);
11713 phba->work_ha |= HA_MBATT;
11714 spin_unlock_irqrestore(&phba->hbalock, iflags);
11718 spin_lock_irqsave(&phba->hbalock, iflags);
11719 /* Release the mailbox command posting token */
11720 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
11721 /* Setting active mailbox pointer need to be in sync to flag clear */
11722 phba->sli.mbox_active = NULL;
11723 spin_unlock_irqrestore(&phba->hbalock, iflags);
11724 /* Wake up worker thread to post the next pending mailbox command */
11725 lpfc_worker_wake_up(phba);
11726 out_no_mqe_complete:
11727 if (bf_get(lpfc_trailer_consumed, mcqe))
11728 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
11733 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
11734 * @phba: Pointer to HBA context object.
11735 * @cqe: Pointer to mailbox completion queue entry.
11737 * This routine process a mailbox completion queue entry, it invokes the
11738 * proper mailbox complete handling or asynchrous event handling routine
11739 * according to the MCQE's async bit.
11741 * Return: true if work posted to worker thread, otherwise false.
11744 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
11746 struct lpfc_mcqe mcqe;
11749 /* Copy the mailbox MCQE and convert endian order as needed */
11750 lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
11752 /* Invoke the proper event handling routine */
11753 if (!bf_get(lpfc_trailer_async, &mcqe))
11754 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
11756 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
11761 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
11762 * @phba: Pointer to HBA context object.
11763 * @cq: Pointer to associated CQ
11764 * @wcqe: Pointer to work-queue completion queue entry.
11766 * This routine handles an ELS work-queue completion event.
11768 * Return: true if work posted to worker thread, otherwise false.
11771 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11772 struct lpfc_wcqe_complete *wcqe)
11774 struct lpfc_iocbq *irspiocbq;
11775 unsigned long iflags;
11776 struct lpfc_sli_ring *pring = cq->pring;
11778 int txcmplq_cnt = 0;
11779 int fcp_txcmplq_cnt = 0;
11781 /* Get an irspiocbq for later ELS response processing use */
11782 irspiocbq = lpfc_sli_get_iocbq(phba);
11784 if (!list_empty(&pring->txq))
11786 if (!list_empty(&pring->txcmplq))
11788 if (!list_empty(&phba->sli.ring[LPFC_FCP_RING].txcmplq))
11790 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11791 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
11792 "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n",
11793 txq_cnt, phba->iocb_cnt,
11799 /* Save off the slow-path queue event for work thread to process */
11800 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
11801 spin_lock_irqsave(&phba->hbalock, iflags);
11802 list_add_tail(&irspiocbq->cq_event.list,
11803 &phba->sli4_hba.sp_queue_event);
11804 phba->hba_flag |= HBA_SP_QUEUE_EVT;
11805 spin_unlock_irqrestore(&phba->hbalock, iflags);
11811 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
11812 * @phba: Pointer to HBA context object.
11813 * @wcqe: Pointer to work-queue completion queue entry.
11815 * This routine handles slow-path WQ entry comsumed event by invoking the
11816 * proper WQ release routine to the slow-path WQ.
11819 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
11820 struct lpfc_wcqe_release *wcqe)
11822 /* sanity check on queue memory */
11823 if (unlikely(!phba->sli4_hba.els_wq))
11825 /* Check for the slow-path ELS work queue */
11826 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
11827 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
11828 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
11830 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11831 "2579 Slow-path wqe consume event carries "
11832 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
11833 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
11834 phba->sli4_hba.els_wq->queue_id);
11838 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
11839 * @phba: Pointer to HBA context object.
11840 * @cq: Pointer to a WQ completion queue.
11841 * @wcqe: Pointer to work-queue completion queue entry.
11843 * This routine handles an XRI abort event.
11845 * Return: true if work posted to worker thread, otherwise false.
11848 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
11849 struct lpfc_queue *cq,
11850 struct sli4_wcqe_xri_aborted *wcqe)
11852 bool workposted = false;
11853 struct lpfc_cq_event *cq_event;
11854 unsigned long iflags;
11856 /* Allocate a new internal CQ_EVENT entry */
11857 cq_event = lpfc_sli4_cq_event_alloc(phba);
11859 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11860 "0602 Failed to allocate CQ_EVENT entry\n");
11864 /* Move the CQE into the proper xri abort event list */
11865 memcpy(&cq_event->cqe, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
11866 switch (cq->subtype) {
11868 spin_lock_irqsave(&phba->hbalock, iflags);
11869 list_add_tail(&cq_event->list,
11870 &phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
11871 /* Set the fcp xri abort event flag */
11872 phba->hba_flag |= FCP_XRI_ABORT_EVENT;
11873 spin_unlock_irqrestore(&phba->hbalock, iflags);
11877 spin_lock_irqsave(&phba->hbalock, iflags);
11878 list_add_tail(&cq_event->list,
11879 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
11880 /* Set the els xri abort event flag */
11881 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
11882 spin_unlock_irqrestore(&phba->hbalock, iflags);
11886 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11887 "0603 Invalid work queue CQE subtype (x%x)\n",
11889 workposted = false;
11896 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
11897 * @phba: Pointer to HBA context object.
11898 * @rcqe: Pointer to receive-queue completion queue entry.
11900 * This routine process a receive-queue completion queue entry.
11902 * Return: true if work posted to worker thread, otherwise false.
11905 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
11907 bool workposted = false;
11908 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
11909 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
11910 struct hbq_dmabuf *dma_buf;
11911 uint32_t status, rq_id;
11912 unsigned long iflags;
11914 /* sanity check on queue memory */
11915 if (unlikely(!hrq) || unlikely(!drq))
11918 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
11919 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
11921 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
11922 if (rq_id != hrq->queue_id)
11925 status = bf_get(lpfc_rcqe_status, rcqe);
11927 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
11928 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11929 "2537 Receive Frame Truncated!!\n");
11930 hrq->RQ_buf_trunc++;
11931 case FC_STATUS_RQ_SUCCESS:
11932 lpfc_sli4_rq_release(hrq, drq);
11933 spin_lock_irqsave(&phba->hbalock, iflags);
11934 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
11936 hrq->RQ_no_buf_found++;
11937 spin_unlock_irqrestore(&phba->hbalock, iflags);
11941 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
11942 /* save off the frame for the word thread to process */
11943 list_add_tail(&dma_buf->cq_event.list,
11944 &phba->sli4_hba.sp_queue_event);
11945 /* Frame received */
11946 phba->hba_flag |= HBA_SP_QUEUE_EVT;
11947 spin_unlock_irqrestore(&phba->hbalock, iflags);
11950 case FC_STATUS_INSUFF_BUF_NEED_BUF:
11951 case FC_STATUS_INSUFF_BUF_FRM_DISC:
11952 hrq->RQ_no_posted_buf++;
11953 /* Post more buffers if possible */
11954 spin_lock_irqsave(&phba->hbalock, iflags);
11955 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
11956 spin_unlock_irqrestore(&phba->hbalock, iflags);
11965 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
11966 * @phba: Pointer to HBA context object.
11967 * @cq: Pointer to the completion queue.
11968 * @wcqe: Pointer to a completion queue entry.
11970 * This routine process a slow-path work-queue or receive queue completion queue
11973 * Return: true if work posted to worker thread, otherwise false.
11976 lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11977 struct lpfc_cqe *cqe)
11979 struct lpfc_cqe cqevt;
11980 bool workposted = false;
11982 /* Copy the work queue CQE and convert endian order if needed */
11983 lpfc_sli_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
11985 /* Check and process for different type of WCQE and dispatch */
11986 switch (bf_get(lpfc_cqe_code, &cqevt)) {
11987 case CQE_CODE_COMPL_WQE:
11988 /* Process the WQ/RQ complete event */
11989 phba->last_completion_time = jiffies;
11990 workposted = lpfc_sli4_sp_handle_els_wcqe(phba, cq,
11991 (struct lpfc_wcqe_complete *)&cqevt);
11993 case CQE_CODE_RELEASE_WQE:
11994 /* Process the WQ release event */
11995 lpfc_sli4_sp_handle_rel_wcqe(phba,
11996 (struct lpfc_wcqe_release *)&cqevt);
11998 case CQE_CODE_XRI_ABORTED:
11999 /* Process the WQ XRI abort event */
12000 phba->last_completion_time = jiffies;
12001 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
12002 (struct sli4_wcqe_xri_aborted *)&cqevt);
12004 case CQE_CODE_RECEIVE:
12005 case CQE_CODE_RECEIVE_V1:
12006 /* Process the RQ event */
12007 phba->last_completion_time = jiffies;
12008 workposted = lpfc_sli4_sp_handle_rcqe(phba,
12009 (struct lpfc_rcqe *)&cqevt);
12012 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12013 "0388 Not a valid WCQE code: x%x\n",
12014 bf_get(lpfc_cqe_code, &cqevt));
12021 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
12022 * @phba: Pointer to HBA context object.
12023 * @eqe: Pointer to fast-path event queue entry.
12025 * This routine process a event queue entry from the slow-path event queue.
12026 * It will check the MajorCode and MinorCode to determine this is for a
12027 * completion event on a completion queue, if not, an error shall be logged
12028 * and just return. Otherwise, it will get to the corresponding completion
12029 * queue and process all the entries on that completion queue, rearm the
12030 * completion queue, and then return.
12034 lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
12035 struct lpfc_queue *speq)
12037 struct lpfc_queue *cq = NULL, *childq;
12038 struct lpfc_cqe *cqe;
12039 bool workposted = false;
12043 /* Get the reference to the corresponding CQ */
12044 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
12046 list_for_each_entry(childq, &speq->child_list, list) {
12047 if (childq->queue_id == cqid) {
12052 if (unlikely(!cq)) {
12053 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
12054 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12055 "0365 Slow-path CQ identifier "
12056 "(%d) does not exist\n", cqid);
12060 /* Process all the entries to the CQ */
12061 switch (cq->type) {
12063 while ((cqe = lpfc_sli4_cq_get(cq))) {
12064 workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe);
12065 if (!(++ecount % cq->entry_repost))
12066 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
12071 while ((cqe = lpfc_sli4_cq_get(cq))) {
12072 if (cq->subtype == LPFC_FCP)
12073 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq,
12076 workposted |= lpfc_sli4_sp_handle_cqe(phba, cq,
12078 if (!(++ecount % cq->entry_repost))
12079 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
12082 /* Track the max number of CQEs processed in 1 EQ */
12083 if (ecount > cq->CQ_max_cqe)
12084 cq->CQ_max_cqe = ecount;
12087 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12088 "0370 Invalid completion queue type (%d)\n",
12093 /* Catch the no cq entry condition, log an error */
12094 if (unlikely(ecount == 0))
12095 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12096 "0371 No entry from the CQ: identifier "
12097 "(x%x), type (%d)\n", cq->queue_id, cq->type);
12099 /* In any case, flash and re-arm the RCQ */
12100 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
12102 /* wake up worker thread if there are works to be done */
12104 lpfc_worker_wake_up(phba);
12108 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
12109 * @phba: Pointer to HBA context object.
12110 * @cq: Pointer to associated CQ
12111 * @wcqe: Pointer to work-queue completion queue entry.
12113 * This routine process a fast-path work queue completion entry from fast-path
12114 * event queue for FCP command response completion.
12117 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
12118 struct lpfc_wcqe_complete *wcqe)
12120 struct lpfc_sli_ring *pring = cq->pring;
12121 struct lpfc_iocbq *cmdiocbq;
12122 struct lpfc_iocbq irspiocbq;
12123 unsigned long iflags;
12125 /* Check for response status */
12126 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
12127 /* If resource errors reported from HBA, reduce queue
12128 * depth of the SCSI device.
12130 if (((bf_get(lpfc_wcqe_c_status, wcqe) ==
12131 IOSTAT_LOCAL_REJECT)) &&
12132 ((wcqe->parameter & IOERR_PARAM_MASK) ==
12133 IOERR_NO_RESOURCES))
12134 phba->lpfc_rampdown_queue_depth(phba);
12136 /* Log the error status */
12137 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12138 "0373 FCP complete error: status=x%x, "
12139 "hw_status=x%x, total_data_specified=%d, "
12140 "parameter=x%x, word3=x%x\n",
12141 bf_get(lpfc_wcqe_c_status, wcqe),
12142 bf_get(lpfc_wcqe_c_hw_status, wcqe),
12143 wcqe->total_data_placed, wcqe->parameter,
12147 /* Look up the FCP command IOCB and create pseudo response IOCB */
12148 spin_lock_irqsave(&pring->ring_lock, iflags);
12149 pring->stats.iocb_event++;
12150 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
12151 bf_get(lpfc_wcqe_c_request_tag, wcqe));
12152 spin_unlock_irqrestore(&pring->ring_lock, iflags);
12153 if (unlikely(!cmdiocbq)) {
12154 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12155 "0374 FCP complete with no corresponding "
12156 "cmdiocb: iotag (%d)\n",
12157 bf_get(lpfc_wcqe_c_request_tag, wcqe));
12160 if (unlikely(!cmdiocbq->iocb_cmpl)) {
12161 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12162 "0375 FCP cmdiocb not callback function "
12164 bf_get(lpfc_wcqe_c_request_tag, wcqe));
12168 /* Fake the irspiocb and copy necessary response information */
12169 lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
12171 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
12172 spin_lock_irqsave(&phba->hbalock, iflags);
12173 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
12174 spin_unlock_irqrestore(&phba->hbalock, iflags);
12177 /* Pass the cmd_iocb and the rsp state to the upper layer */
12178 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
12182 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
12183 * @phba: Pointer to HBA context object.
12184 * @cq: Pointer to completion queue.
12185 * @wcqe: Pointer to work-queue completion queue entry.
12187 * This routine handles an fast-path WQ entry comsumed event by invoking the
12188 * proper WQ release routine to the slow-path WQ.
12191 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
12192 struct lpfc_wcqe_release *wcqe)
12194 struct lpfc_queue *childwq;
12195 bool wqid_matched = false;
12198 /* Check for fast-path FCP work queue release */
12199 fcp_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
12200 list_for_each_entry(childwq, &cq->child_list, list) {
12201 if (childwq->queue_id == fcp_wqid) {
12202 lpfc_sli4_wq_release(childwq,
12203 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
12204 wqid_matched = true;
12208 /* Report warning log message if no match found */
12209 if (wqid_matched != true)
12210 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12211 "2580 Fast-path wqe consume event carries "
12212 "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid);
12216 * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry
12217 * @cq: Pointer to the completion queue.
12218 * @eqe: Pointer to fast-path completion queue entry.
12220 * This routine process a fast-path work queue completion entry from fast-path
12221 * event queue for FCP command response completion.
12224 lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
12225 struct lpfc_cqe *cqe)
12227 struct lpfc_wcqe_release wcqe;
12228 bool workposted = false;
12230 /* Copy the work queue CQE and convert endian order if needed */
12231 lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
12233 /* Check and process for different type of WCQE and dispatch */
12234 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
12235 case CQE_CODE_COMPL_WQE:
12237 /* Process the WQ complete event */
12238 phba->last_completion_time = jiffies;
12239 lpfc_sli4_fp_handle_fcp_wcqe(phba, cq,
12240 (struct lpfc_wcqe_complete *)&wcqe);
12242 case CQE_CODE_RELEASE_WQE:
12243 cq->CQ_release_wqe++;
12244 /* Process the WQ release event */
12245 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
12246 (struct lpfc_wcqe_release *)&wcqe);
12248 case CQE_CODE_XRI_ABORTED:
12249 cq->CQ_xri_aborted++;
12250 /* Process the WQ XRI abort event */
12251 phba->last_completion_time = jiffies;
12252 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
12253 (struct sli4_wcqe_xri_aborted *)&wcqe);
12256 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12257 "0144 Not a valid WCQE code: x%x\n",
12258 bf_get(lpfc_wcqe_c_code, &wcqe));
12265 * lpfc_sli4_hba_handle_eqe - Process a fast-path event queue entry
12266 * @phba: Pointer to HBA context object.
12267 * @eqe: Pointer to fast-path event queue entry.
12269 * This routine process a event queue entry from the fast-path event queue.
12270 * It will check the MajorCode and MinorCode to determine this is for a
12271 * completion event on a completion queue, if not, an error shall be logged
12272 * and just return. Otherwise, it will get to the corresponding completion
12273 * queue and process all the entries on the completion queue, rearm the
12274 * completion queue, and then return.
12277 lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
12280 struct lpfc_queue *cq;
12281 struct lpfc_cqe *cqe;
12282 bool workposted = false;
12286 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
12287 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12288 "0366 Not a valid completion "
12289 "event: majorcode=x%x, minorcode=x%x\n",
12290 bf_get_le32(lpfc_eqe_major_code, eqe),
12291 bf_get_le32(lpfc_eqe_minor_code, eqe));
12295 /* Get the reference to the corresponding CQ */
12296 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
12298 /* Check if this is a Slow path event */
12299 if (unlikely(cqid != phba->sli4_hba.fcp_cq_map[qidx])) {
12300 lpfc_sli4_sp_handle_eqe(phba, eqe,
12301 phba->sli4_hba.hba_eq[qidx]);
12305 if (unlikely(!phba->sli4_hba.fcp_cq)) {
12306 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12307 "3146 Fast-path completion queues "
12308 "does not exist\n");
12311 cq = phba->sli4_hba.fcp_cq[qidx];
12312 if (unlikely(!cq)) {
12313 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
12314 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12315 "0367 Fast-path completion queue "
12316 "(%d) does not exist\n", qidx);
12320 if (unlikely(cqid != cq->queue_id)) {
12321 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12322 "0368 Miss-matched fast-path completion "
12323 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
12324 cqid, cq->queue_id);
12328 /* Process all the entries to the CQ */
12329 while ((cqe = lpfc_sli4_cq_get(cq))) {
12330 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe);
12331 if (!(++ecount % cq->entry_repost))
12332 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
12335 /* Track the max number of CQEs processed in 1 EQ */
12336 if (ecount > cq->CQ_max_cqe)
12337 cq->CQ_max_cqe = ecount;
12339 /* Catch the no cq entry condition */
12340 if (unlikely(ecount == 0))
12341 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12342 "0369 No entry from fast-path completion "
12343 "queue fcpcqid=%d\n", cq->queue_id);
12345 /* In any case, flash and re-arm the CQ */
12346 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
12348 /* wake up worker thread if there are works to be done */
12350 lpfc_worker_wake_up(phba);
12354 lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
12356 struct lpfc_eqe *eqe;
12358 /* walk all the EQ entries and drop on the floor */
12359 while ((eqe = lpfc_sli4_eq_get(eq)))
12362 /* Clear and re-arm the EQ */
12363 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
12368 * lpfc_sli4_fof_handle_eqe - Process a Flash Optimized Fabric event queue
12370 * @phba: Pointer to HBA context object.
12371 * @eqe: Pointer to fast-path event queue entry.
12373 * This routine process a event queue entry from the Flash Optimized Fabric
12374 * event queue. It will check the MajorCode and MinorCode to determine this
12375 * is for a completion event on a completion queue, if not, an error shall be
12376 * logged and just return. Otherwise, it will get to the corresponding
12377 * completion queue and process all the entries on the completion queue, rearm
12378 * the completion queue, and then return.
12381 lpfc_sli4_fof_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe)
12383 struct lpfc_queue *cq;
12384 struct lpfc_cqe *cqe;
12385 bool workposted = false;
12389 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
12390 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12391 "9147 Not a valid completion "
12392 "event: majorcode=x%x, minorcode=x%x\n",
12393 bf_get_le32(lpfc_eqe_major_code, eqe),
12394 bf_get_le32(lpfc_eqe_minor_code, eqe));
12398 /* Get the reference to the corresponding CQ */
12399 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
12401 /* Next check for OAS */
12402 cq = phba->sli4_hba.oas_cq;
12403 if (unlikely(!cq)) {
12404 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
12405 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12406 "9148 OAS completion queue "
12407 "does not exist\n");
12411 if (unlikely(cqid != cq->queue_id)) {
12412 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12413 "9149 Miss-matched fast-path compl "
12414 "queue id: eqcqid=%d, fcpcqid=%d\n",
12415 cqid, cq->queue_id);
12419 /* Process all the entries to the OAS CQ */
12420 while ((cqe = lpfc_sli4_cq_get(cq))) {
12421 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe);
12422 if (!(++ecount % cq->entry_repost))
12423 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
12426 /* Track the max number of CQEs processed in 1 EQ */
12427 if (ecount > cq->CQ_max_cqe)
12428 cq->CQ_max_cqe = ecount;
12430 /* Catch the no cq entry condition */
12431 if (unlikely(ecount == 0))
12432 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12433 "9153 No entry from fast-path completion "
12434 "queue fcpcqid=%d\n", cq->queue_id);
12436 /* In any case, flash and re-arm the CQ */
12437 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
12439 /* wake up worker thread if there are works to be done */
12441 lpfc_worker_wake_up(phba);
12445 * lpfc_sli4_fof_intr_handler - HBA interrupt handler to SLI-4 device
12446 * @irq: Interrupt number.
12447 * @dev_id: The device context pointer.
12449 * This function is directly called from the PCI layer as an interrupt
12450 * service routine when device with SLI-4 interface spec is enabled with
12451 * MSI-X multi-message interrupt mode and there is a Flash Optimized Fabric
12452 * IOCB ring event in the HBA. However, when the device is enabled with either
12453 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
12454 * device-level interrupt handler. When the PCI slot is in error recovery
12455 * or the HBA is undergoing initialization, the interrupt handler will not
12456 * process the interrupt. The Flash Optimized Fabric ring event are handled in
12457 * the intrrupt context. This function is called without any lock held.
12458 * It gets the hbalock to access and update SLI data structures. Note that,
12459 * the EQ to CQ are one-to-one map such that the EQ index is
12460 * equal to that of CQ index.
12462 * This function returns IRQ_HANDLED when interrupt is handled else it
12463 * returns IRQ_NONE.
12466 lpfc_sli4_fof_intr_handler(int irq, void *dev_id)
12468 struct lpfc_hba *phba;
12469 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
12470 struct lpfc_queue *eq;
12471 struct lpfc_eqe *eqe;
12472 unsigned long iflag;
12476 /* Get the driver's phba structure from the dev_id */
12477 fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id;
12478 phba = fcp_eq_hdl->phba;
12479 eqidx = fcp_eq_hdl->idx;
12481 if (unlikely(!phba))
12484 /* Get to the EQ struct associated with this vector */
12485 eq = phba->sli4_hba.fof_eq;
12489 /* Check device state for handling interrupt */
12490 if (unlikely(lpfc_intr_state_check(phba))) {
12492 /* Check again for link_state with lock held */
12493 spin_lock_irqsave(&phba->hbalock, iflag);
12494 if (phba->link_state < LPFC_LINK_DOWN)
12495 /* Flush, clear interrupt, and rearm the EQ */
12496 lpfc_sli4_eq_flush(phba, eq);
12497 spin_unlock_irqrestore(&phba->hbalock, iflag);
12502 * Process all the event on FCP fast-path EQ
12504 while ((eqe = lpfc_sli4_eq_get(eq))) {
12505 lpfc_sli4_fof_handle_eqe(phba, eqe);
12506 if (!(++ecount % eq->entry_repost))
12507 lpfc_sli4_eq_release(eq, LPFC_QUEUE_NOARM);
12508 eq->EQ_processed++;
12511 /* Track the max number of EQEs processed in 1 intr */
12512 if (ecount > eq->EQ_max_eqe)
12513 eq->EQ_max_eqe = ecount;
12516 if (unlikely(ecount == 0)) {
12519 if (phba->intr_type == MSIX)
12520 /* MSI-X treated interrupt served as no EQ share INT */
12521 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12522 "9145 MSI-X interrupt with no EQE\n");
12524 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12525 "9146 ISR interrupt with no EQE\n");
12526 /* Non MSI-X treated on interrupt as EQ share INT */
12530 /* Always clear and re-arm the fast-path EQ */
12531 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
12532 return IRQ_HANDLED;
12536 * lpfc_sli4_hba_intr_handler - HBA interrupt handler to SLI-4 device
12537 * @irq: Interrupt number.
12538 * @dev_id: The device context pointer.
12540 * This function is directly called from the PCI layer as an interrupt
12541 * service routine when device with SLI-4 interface spec is enabled with
12542 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
12543 * ring event in the HBA. However, when the device is enabled with either
12544 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
12545 * device-level interrupt handler. When the PCI slot is in error recovery
12546 * or the HBA is undergoing initialization, the interrupt handler will not
12547 * process the interrupt. The SCSI FCP fast-path ring event are handled in
12548 * the intrrupt context. This function is called without any lock held.
12549 * It gets the hbalock to access and update SLI data structures. Note that,
12550 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
12551 * equal to that of FCP CQ index.
12553 * The link attention and ELS ring attention events are handled
12554 * by the worker thread. The interrupt handler signals the worker thread
12555 * and returns for these events. This function is called without any lock
12556 * held. It gets the hbalock to access and update SLI data structures.
12558 * This function returns IRQ_HANDLED when interrupt is handled else it
12559 * returns IRQ_NONE.
12562 lpfc_sli4_hba_intr_handler(int irq, void *dev_id)
12564 struct lpfc_hba *phba;
12565 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
12566 struct lpfc_queue *fpeq;
12567 struct lpfc_eqe *eqe;
12568 unsigned long iflag;
12572 /* Get the driver's phba structure from the dev_id */
12573 fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id;
12574 phba = fcp_eq_hdl->phba;
12575 fcp_eqidx = fcp_eq_hdl->idx;
12577 if (unlikely(!phba))
12579 if (unlikely(!phba->sli4_hba.hba_eq))
12582 /* Get to the EQ struct associated with this vector */
12583 fpeq = phba->sli4_hba.hba_eq[fcp_eqidx];
12584 if (unlikely(!fpeq))
12587 if (lpfc_fcp_look_ahead) {
12588 if (atomic_dec_and_test(&fcp_eq_hdl->fcp_eq_in_use))
12589 lpfc_sli4_eq_clr_intr(fpeq);
12591 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12596 /* Check device state for handling interrupt */
12597 if (unlikely(lpfc_intr_state_check(phba))) {
12598 fpeq->EQ_badstate++;
12599 /* Check again for link_state with lock held */
12600 spin_lock_irqsave(&phba->hbalock, iflag);
12601 if (phba->link_state < LPFC_LINK_DOWN)
12602 /* Flush, clear interrupt, and rearm the EQ */
12603 lpfc_sli4_eq_flush(phba, fpeq);
12604 spin_unlock_irqrestore(&phba->hbalock, iflag);
12605 if (lpfc_fcp_look_ahead)
12606 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12611 * Process all the event on FCP fast-path EQ
12613 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
12614 lpfc_sli4_hba_handle_eqe(phba, eqe, fcp_eqidx);
12615 if (!(++ecount % fpeq->entry_repost))
12616 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM);
12617 fpeq->EQ_processed++;
12620 /* Track the max number of EQEs processed in 1 intr */
12621 if (ecount > fpeq->EQ_max_eqe)
12622 fpeq->EQ_max_eqe = ecount;
12624 /* Always clear and re-arm the fast-path EQ */
12625 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
12627 if (unlikely(ecount == 0)) {
12628 fpeq->EQ_no_entry++;
12630 if (lpfc_fcp_look_ahead) {
12631 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12635 if (phba->intr_type == MSIX)
12636 /* MSI-X treated interrupt served as no EQ share INT */
12637 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12638 "0358 MSI-X interrupt with no EQE\n");
12640 /* Non MSI-X treated on interrupt as EQ share INT */
12644 if (lpfc_fcp_look_ahead)
12645 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12646 return IRQ_HANDLED;
12647 } /* lpfc_sli4_fp_intr_handler */
12650 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
12651 * @irq: Interrupt number.
12652 * @dev_id: The device context pointer.
12654 * This function is the device-level interrupt handler to device with SLI-4
12655 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
12656 * interrupt mode is enabled and there is an event in the HBA which requires
12657 * driver attention. This function invokes the slow-path interrupt attention
12658 * handling function and fast-path interrupt attention handling function in
12659 * turn to process the relevant HBA attention events. This function is called
12660 * without any lock held. It gets the hbalock to access and update SLI data
12663 * This function returns IRQ_HANDLED when interrupt is handled, else it
12664 * returns IRQ_NONE.
12667 lpfc_sli4_intr_handler(int irq, void *dev_id)
12669 struct lpfc_hba *phba;
12670 irqreturn_t hba_irq_rc;
12671 bool hba_handled = false;
12674 /* Get the driver's phba structure from the dev_id */
12675 phba = (struct lpfc_hba *)dev_id;
12677 if (unlikely(!phba))
12681 * Invoke fast-path host attention interrupt handling as appropriate.
12683 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
12684 hba_irq_rc = lpfc_sli4_hba_intr_handler(irq,
12685 &phba->sli4_hba.fcp_eq_hdl[fcp_eqidx]);
12686 if (hba_irq_rc == IRQ_HANDLED)
12687 hba_handled |= true;
12690 if (phba->cfg_fof) {
12691 hba_irq_rc = lpfc_sli4_fof_intr_handler(irq,
12692 &phba->sli4_hba.fcp_eq_hdl[0]);
12693 if (hba_irq_rc == IRQ_HANDLED)
12694 hba_handled |= true;
12697 return (hba_handled == true) ? IRQ_HANDLED : IRQ_NONE;
12698 } /* lpfc_sli4_intr_handler */
12701 * lpfc_sli4_queue_free - free a queue structure and associated memory
12702 * @queue: The queue structure to free.
12704 * This function frees a queue structure and the DMAable memory used for
12705 * the host resident queue. This function must be called after destroying the
12706 * queue on the HBA.
12709 lpfc_sli4_queue_free(struct lpfc_queue *queue)
12711 struct lpfc_dmabuf *dmabuf;
12716 while (!list_empty(&queue->page_list)) {
12717 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
12719 dma_free_coherent(&queue->phba->pcidev->dev, SLI4_PAGE_SIZE,
12720 dmabuf->virt, dmabuf->phys);
12728 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
12729 * @phba: The HBA that this queue is being created on.
12730 * @entry_size: The size of each queue entry for this queue.
12731 * @entry count: The number of entries that this queue will handle.
12733 * This function allocates a queue structure and the DMAable memory used for
12734 * the host resident queue. This function must be called before creating the
12735 * queue on the HBA.
12737 struct lpfc_queue *
12738 lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size,
12739 uint32_t entry_count)
12741 struct lpfc_queue *queue;
12742 struct lpfc_dmabuf *dmabuf;
12743 int x, total_qe_count;
12745 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12747 if (!phba->sli4_hba.pc_sli4_params.supported)
12748 hw_page_size = SLI4_PAGE_SIZE;
12750 queue = kzalloc(sizeof(struct lpfc_queue) +
12751 (sizeof(union sli4_qe) * entry_count), GFP_KERNEL);
12754 queue->page_count = (ALIGN(entry_size * entry_count,
12755 hw_page_size))/hw_page_size;
12756 INIT_LIST_HEAD(&queue->list);
12757 INIT_LIST_HEAD(&queue->page_list);
12758 INIT_LIST_HEAD(&queue->child_list);
12759 for (x = 0, total_qe_count = 0; x < queue->page_count; x++) {
12760 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
12763 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
12764 hw_page_size, &dmabuf->phys,
12766 if (!dmabuf->virt) {
12770 memset(dmabuf->virt, 0, hw_page_size);
12771 dmabuf->buffer_tag = x;
12772 list_add_tail(&dmabuf->list, &queue->page_list);
12773 /* initialize queue's entry array */
12774 dma_pointer = dmabuf->virt;
12775 for (; total_qe_count < entry_count &&
12776 dma_pointer < (hw_page_size + dmabuf->virt);
12777 total_qe_count++, dma_pointer += entry_size) {
12778 queue->qe[total_qe_count].address = dma_pointer;
12781 queue->entry_size = entry_size;
12782 queue->entry_count = entry_count;
12785 * entry_repost is calculated based on the number of entries in the
12786 * queue. This works out except for RQs. If buffers are NOT initially
12787 * posted for every RQE, entry_repost should be adjusted accordingly.
12789 queue->entry_repost = (entry_count >> 3);
12790 if (queue->entry_repost < LPFC_QUEUE_MIN_REPOST)
12791 queue->entry_repost = LPFC_QUEUE_MIN_REPOST;
12792 queue->phba = phba;
12796 lpfc_sli4_queue_free(queue);
12801 * lpfc_dual_chute_pci_bar_map - Map pci base address register to host memory
12802 * @phba: HBA structure that indicates port to create a queue on.
12803 * @pci_barset: PCI BAR set flag.
12805 * This function shall perform iomap of the specified PCI BAR address to host
12806 * memory address if not already done so and return it. The returned host
12807 * memory address can be NULL.
12809 static void __iomem *
12810 lpfc_dual_chute_pci_bar_map(struct lpfc_hba *phba, uint16_t pci_barset)
12812 struct pci_dev *pdev;
12817 pdev = phba->pcidev;
12819 switch (pci_barset) {
12820 case WQ_PCI_BAR_0_AND_1:
12821 return phba->pci_bar0_memmap_p;
12822 case WQ_PCI_BAR_2_AND_3:
12823 return phba->pci_bar2_memmap_p;
12824 case WQ_PCI_BAR_4_AND_5:
12825 return phba->pci_bar4_memmap_p;
12833 * lpfc_modify_fcp_eq_delay - Modify Delay Multiplier on FCP EQs
12834 * @phba: HBA structure that indicates port to create a queue on.
12835 * @startq: The starting FCP EQ to modify
12837 * This function sends an MODIFY_EQ_DELAY mailbox command to the HBA.
12839 * The @phba struct is used to send mailbox command to HBA. The @startq
12840 * is used to get the starting FCP EQ to change.
12841 * This function is asynchronous and will wait for the mailbox
12842 * command to finish before continuing.
12844 * On success this function will return a zero. If unable to allocate enough
12845 * memory this function will return -ENOMEM. If the queue create mailbox command
12846 * fails this function will return -ENXIO.
12849 lpfc_modify_fcp_eq_delay(struct lpfc_hba *phba, uint16_t startq)
12851 struct lpfc_mbx_modify_eq_delay *eq_delay;
12852 LPFC_MBOXQ_t *mbox;
12853 struct lpfc_queue *eq;
12854 int cnt, rc, length, status = 0;
12855 uint32_t shdr_status, shdr_add_status;
12858 union lpfc_sli4_cfg_shdr *shdr;
12861 if (startq >= phba->cfg_fcp_io_channel)
12864 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12867 length = (sizeof(struct lpfc_mbx_modify_eq_delay) -
12868 sizeof(struct lpfc_sli4_cfg_mhdr));
12869 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12870 LPFC_MBOX_OPCODE_MODIFY_EQ_DELAY,
12871 length, LPFC_SLI4_MBX_EMBED);
12872 eq_delay = &mbox->u.mqe.un.eq_delay;
12874 /* Calculate delay multiper from maximum interrupt per second */
12875 result = phba->cfg_fcp_imax / phba->cfg_fcp_io_channel;
12876 if (result > LPFC_DMULT_CONST)
12879 dmult = LPFC_DMULT_CONST/result - 1;
12882 for (fcp_eqidx = startq; fcp_eqidx < phba->cfg_fcp_io_channel;
12884 eq = phba->sli4_hba.hba_eq[fcp_eqidx];
12887 eq_delay->u.request.eq[cnt].eq_id = eq->queue_id;
12888 eq_delay->u.request.eq[cnt].phase = 0;
12889 eq_delay->u.request.eq[cnt].delay_multi = dmult;
12891 if (cnt >= LPFC_MAX_EQ_DELAY)
12894 eq_delay->u.request.num_eq = cnt;
12896 mbox->vport = phba->pport;
12897 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12898 mbox->context1 = NULL;
12899 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12900 shdr = (union lpfc_sli4_cfg_shdr *) &eq_delay->header.cfg_shdr;
12901 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12902 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12903 if (shdr_status || shdr_add_status || rc) {
12904 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12905 "2512 MODIFY_EQ_DELAY mailbox failed with "
12906 "status x%x add_status x%x, mbx status x%x\n",
12907 shdr_status, shdr_add_status, rc);
12910 mempool_free(mbox, phba->mbox_mem_pool);
12915 * lpfc_eq_create - Create an Event Queue on the HBA
12916 * @phba: HBA structure that indicates port to create a queue on.
12917 * @eq: The queue structure to use to create the event queue.
12918 * @imax: The maximum interrupt per second limit.
12920 * This function creates an event queue, as detailed in @eq, on a port,
12921 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
12923 * The @phba struct is used to send mailbox command to HBA. The @eq struct
12924 * is used to get the entry count and entry size that are necessary to
12925 * determine the number of pages to allocate and use for this queue. This
12926 * function will send the EQ_CREATE mailbox command to the HBA to setup the
12927 * event queue. This function is asynchronous and will wait for the mailbox
12928 * command to finish before continuing.
12930 * On success this function will return a zero. If unable to allocate enough
12931 * memory this function will return -ENOMEM. If the queue create mailbox command
12932 * fails this function will return -ENXIO.
12935 lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint32_t imax)
12937 struct lpfc_mbx_eq_create *eq_create;
12938 LPFC_MBOXQ_t *mbox;
12939 int rc, length, status = 0;
12940 struct lpfc_dmabuf *dmabuf;
12941 uint32_t shdr_status, shdr_add_status;
12942 union lpfc_sli4_cfg_shdr *shdr;
12944 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12946 /* sanity check on queue memory */
12949 if (!phba->sli4_hba.pc_sli4_params.supported)
12950 hw_page_size = SLI4_PAGE_SIZE;
12952 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12955 length = (sizeof(struct lpfc_mbx_eq_create) -
12956 sizeof(struct lpfc_sli4_cfg_mhdr));
12957 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12958 LPFC_MBOX_OPCODE_EQ_CREATE,
12959 length, LPFC_SLI4_MBX_EMBED);
12960 eq_create = &mbox->u.mqe.un.eq_create;
12961 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
12963 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
12965 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
12966 /* Calculate delay multiper from maximum interrupt per second */
12967 if (imax > LPFC_DMULT_CONST)
12970 dmult = LPFC_DMULT_CONST/imax - 1;
12971 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
12973 switch (eq->entry_count) {
12975 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12976 "0360 Unsupported EQ count. (%d)\n",
12978 if (eq->entry_count < 256)
12980 /* otherwise default to smallest count (drop through) */
12982 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12986 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12990 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12994 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12998 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
13002 list_for_each_entry(dmabuf, &eq->page_list, list) {
13003 memset(dmabuf->virt, 0, hw_page_size);
13004 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13005 putPaddrLow(dmabuf->phys);
13006 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13007 putPaddrHigh(dmabuf->phys);
13009 mbox->vport = phba->pport;
13010 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13011 mbox->context1 = NULL;
13012 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13013 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
13014 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13015 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13016 if (shdr_status || shdr_add_status || rc) {
13017 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13018 "2500 EQ_CREATE mailbox failed with "
13019 "status x%x add_status x%x, mbx status x%x\n",
13020 shdr_status, shdr_add_status, rc);
13023 eq->type = LPFC_EQ;
13024 eq->subtype = LPFC_NONE;
13025 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
13026 if (eq->queue_id == 0xFFFF)
13028 eq->host_index = 0;
13031 mempool_free(mbox, phba->mbox_mem_pool);
13036 * lpfc_cq_create - Create a Completion Queue on the HBA
13037 * @phba: HBA structure that indicates port to create a queue on.
13038 * @cq: The queue structure to use to create the completion queue.
13039 * @eq: The event queue to bind this completion queue to.
13041 * This function creates a completion queue, as detailed in @wq, on a port,
13042 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
13044 * The @phba struct is used to send mailbox command to HBA. The @cq struct
13045 * is used to get the entry count and entry size that are necessary to
13046 * determine the number of pages to allocate and use for this queue. The @eq
13047 * is used to indicate which event queue to bind this completion queue to. This
13048 * function will send the CQ_CREATE mailbox command to the HBA to setup the
13049 * completion queue. This function is asynchronous and will wait for the mailbox
13050 * command to finish before continuing.
13052 * On success this function will return a zero. If unable to allocate enough
13053 * memory this function will return -ENOMEM. If the queue create mailbox command
13054 * fails this function will return -ENXIO.
13057 lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
13058 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
13060 struct lpfc_mbx_cq_create *cq_create;
13061 struct lpfc_dmabuf *dmabuf;
13062 LPFC_MBOXQ_t *mbox;
13063 int rc, length, status = 0;
13064 uint32_t shdr_status, shdr_add_status;
13065 union lpfc_sli4_cfg_shdr *shdr;
13066 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
13068 /* sanity check on queue memory */
13071 if (!phba->sli4_hba.pc_sli4_params.supported)
13072 hw_page_size = SLI4_PAGE_SIZE;
13074 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13077 length = (sizeof(struct lpfc_mbx_cq_create) -
13078 sizeof(struct lpfc_sli4_cfg_mhdr));
13079 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13080 LPFC_MBOX_OPCODE_CQ_CREATE,
13081 length, LPFC_SLI4_MBX_EMBED);
13082 cq_create = &mbox->u.mqe.un.cq_create;
13083 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
13084 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
13086 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
13087 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
13088 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13089 phba->sli4_hba.pc_sli4_params.cqv);
13090 if (phba->sli4_hba.pc_sli4_params.cqv == LPFC_Q_CREATE_VERSION_2) {
13091 /* FW only supports 1. Should be PAGE_SIZE/SLI4_PAGE_SIZE */
13092 bf_set(lpfc_mbx_cq_create_page_size, &cq_create->u.request, 1);
13093 bf_set(lpfc_cq_eq_id_2, &cq_create->u.request.context,
13096 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context,
13099 switch (cq->entry_count) {
13101 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13102 "0361 Unsupported CQ count. (%d)\n",
13104 if (cq->entry_count < 256) {
13108 /* otherwise default to smallest count (drop through) */
13110 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
13114 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
13118 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
13122 list_for_each_entry(dmabuf, &cq->page_list, list) {
13123 memset(dmabuf->virt, 0, hw_page_size);
13124 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13125 putPaddrLow(dmabuf->phys);
13126 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13127 putPaddrHigh(dmabuf->phys);
13129 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13131 /* The IOCTL status is embedded in the mailbox subheader. */
13132 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13133 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13134 if (shdr_status || shdr_add_status || rc) {
13135 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13136 "2501 CQ_CREATE mailbox failed with "
13137 "status x%x add_status x%x, mbx status x%x\n",
13138 shdr_status, shdr_add_status, rc);
13142 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
13143 if (cq->queue_id == 0xFFFF) {
13147 /* link the cq onto the parent eq child list */
13148 list_add_tail(&cq->list, &eq->child_list);
13149 /* Set up completion queue's type and subtype */
13151 cq->subtype = subtype;
13152 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
13153 cq->assoc_qid = eq->queue_id;
13154 cq->host_index = 0;
13158 mempool_free(mbox, phba->mbox_mem_pool);
13163 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
13164 * @phba: HBA structure that indicates port to create a queue on.
13165 * @mq: The queue structure to use to create the mailbox queue.
13166 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
13167 * @cq: The completion queue to associate with this cq.
13169 * This function provides failback (fb) functionality when the
13170 * mq_create_ext fails on older FW generations. It's purpose is identical
13171 * to mq_create_ext otherwise.
13173 * This routine cannot fail as all attributes were previously accessed and
13174 * initialized in mq_create_ext.
13177 lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq,
13178 LPFC_MBOXQ_t *mbox, struct lpfc_queue *cq)
13180 struct lpfc_mbx_mq_create *mq_create;
13181 struct lpfc_dmabuf *dmabuf;
13184 length = (sizeof(struct lpfc_mbx_mq_create) -
13185 sizeof(struct lpfc_sli4_cfg_mhdr));
13186 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13187 LPFC_MBOX_OPCODE_MQ_CREATE,
13188 length, LPFC_SLI4_MBX_EMBED);
13189 mq_create = &mbox->u.mqe.un.mq_create;
13190 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
13192 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
13194 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
13195 switch (mq->entry_count) {
13197 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
13198 LPFC_MQ_RING_SIZE_16);
13201 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
13202 LPFC_MQ_RING_SIZE_32);
13205 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
13206 LPFC_MQ_RING_SIZE_64);
13209 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
13210 LPFC_MQ_RING_SIZE_128);
13213 list_for_each_entry(dmabuf, &mq->page_list, list) {
13214 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13215 putPaddrLow(dmabuf->phys);
13216 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13217 putPaddrHigh(dmabuf->phys);
13222 * lpfc_mq_create - Create a mailbox Queue on the HBA
13223 * @phba: HBA structure that indicates port to create a queue on.
13224 * @mq: The queue structure to use to create the mailbox queue.
13225 * @cq: The completion queue to associate with this cq.
13226 * @subtype: The queue's subtype.
13228 * This function creates a mailbox queue, as detailed in @mq, on a port,
13229 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
13231 * The @phba struct is used to send mailbox command to HBA. The @cq struct
13232 * is used to get the entry count and entry size that are necessary to
13233 * determine the number of pages to allocate and use for this queue. This
13234 * function will send the MQ_CREATE mailbox command to the HBA to setup the
13235 * mailbox queue. This function is asynchronous and will wait for the mailbox
13236 * command to finish before continuing.
13238 * On success this function will return a zero. If unable to allocate enough
13239 * memory this function will return -ENOMEM. If the queue create mailbox command
13240 * fails this function will return -ENXIO.
13243 lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
13244 struct lpfc_queue *cq, uint32_t subtype)
13246 struct lpfc_mbx_mq_create *mq_create;
13247 struct lpfc_mbx_mq_create_ext *mq_create_ext;
13248 struct lpfc_dmabuf *dmabuf;
13249 LPFC_MBOXQ_t *mbox;
13250 int rc, length, status = 0;
13251 uint32_t shdr_status, shdr_add_status;
13252 union lpfc_sli4_cfg_shdr *shdr;
13253 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
13255 /* sanity check on queue memory */
13258 if (!phba->sli4_hba.pc_sli4_params.supported)
13259 hw_page_size = SLI4_PAGE_SIZE;
13261 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13264 length = (sizeof(struct lpfc_mbx_mq_create_ext) -
13265 sizeof(struct lpfc_sli4_cfg_mhdr));
13266 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13267 LPFC_MBOX_OPCODE_MQ_CREATE_EXT,
13268 length, LPFC_SLI4_MBX_EMBED);
13270 mq_create_ext = &mbox->u.mqe.un.mq_create_ext;
13271 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr;
13272 bf_set(lpfc_mbx_mq_create_ext_num_pages,
13273 &mq_create_ext->u.request, mq->page_count);
13274 bf_set(lpfc_mbx_mq_create_ext_async_evt_link,
13275 &mq_create_ext->u.request, 1);
13276 bf_set(lpfc_mbx_mq_create_ext_async_evt_fip,
13277 &mq_create_ext->u.request, 1);
13278 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5,
13279 &mq_create_ext->u.request, 1);
13280 bf_set(lpfc_mbx_mq_create_ext_async_evt_fc,
13281 &mq_create_ext->u.request, 1);
13282 bf_set(lpfc_mbx_mq_create_ext_async_evt_sli,
13283 &mq_create_ext->u.request, 1);
13284 bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1);
13285 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13286 phba->sli4_hba.pc_sli4_params.mqv);
13287 if (phba->sli4_hba.pc_sli4_params.mqv == LPFC_Q_CREATE_VERSION_1)
13288 bf_set(lpfc_mbx_mq_create_ext_cq_id, &mq_create_ext->u.request,
13291 bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context,
13293 switch (mq->entry_count) {
13295 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13296 "0362 Unsupported MQ count. (%d)\n",
13298 if (mq->entry_count < 16) {
13302 /* otherwise default to smallest count (drop through) */
13304 bf_set(lpfc_mq_context_ring_size,
13305 &mq_create_ext->u.request.context,
13306 LPFC_MQ_RING_SIZE_16);
13309 bf_set(lpfc_mq_context_ring_size,
13310 &mq_create_ext->u.request.context,
13311 LPFC_MQ_RING_SIZE_32);
13314 bf_set(lpfc_mq_context_ring_size,
13315 &mq_create_ext->u.request.context,
13316 LPFC_MQ_RING_SIZE_64);
13319 bf_set(lpfc_mq_context_ring_size,
13320 &mq_create_ext->u.request.context,
13321 LPFC_MQ_RING_SIZE_128);
13324 list_for_each_entry(dmabuf, &mq->page_list, list) {
13325 memset(dmabuf->virt, 0, hw_page_size);
13326 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_lo =
13327 putPaddrLow(dmabuf->phys);
13328 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_hi =
13329 putPaddrHigh(dmabuf->phys);
13331 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13332 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
13333 &mq_create_ext->u.response);
13334 if (rc != MBX_SUCCESS) {
13335 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13336 "2795 MQ_CREATE_EXT failed with "
13337 "status x%x. Failback to MQ_CREATE.\n",
13339 lpfc_mq_create_fb_init(phba, mq, mbox, cq);
13340 mq_create = &mbox->u.mqe.un.mq_create;
13341 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13342 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
13343 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
13344 &mq_create->u.response);
13347 /* The IOCTL status is embedded in the mailbox subheader. */
13348 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13349 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13350 if (shdr_status || shdr_add_status || rc) {
13351 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13352 "2502 MQ_CREATE mailbox failed with "
13353 "status x%x add_status x%x, mbx status x%x\n",
13354 shdr_status, shdr_add_status, rc);
13358 if (mq->queue_id == 0xFFFF) {
13362 mq->type = LPFC_MQ;
13363 mq->assoc_qid = cq->queue_id;
13364 mq->subtype = subtype;
13365 mq->host_index = 0;
13368 /* link the mq onto the parent cq child list */
13369 list_add_tail(&mq->list, &cq->child_list);
13371 mempool_free(mbox, phba->mbox_mem_pool);
13376 * lpfc_wq_create - Create a Work Queue on the HBA
13377 * @phba: HBA structure that indicates port to create a queue on.
13378 * @wq: The queue structure to use to create the work queue.
13379 * @cq: The completion queue to bind this work queue to.
13380 * @subtype: The subtype of the work queue indicating its functionality.
13382 * This function creates a work queue, as detailed in @wq, on a port, described
13383 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
13385 * The @phba struct is used to send mailbox command to HBA. The @wq struct
13386 * is used to get the entry count and entry size that are necessary to
13387 * determine the number of pages to allocate and use for this queue. The @cq
13388 * is used to indicate which completion queue to bind this work queue to. This
13389 * function will send the WQ_CREATE mailbox command to the HBA to setup the
13390 * work queue. This function is asynchronous and will wait for the mailbox
13391 * command to finish before continuing.
13393 * On success this function will return a zero. If unable to allocate enough
13394 * memory this function will return -ENOMEM. If the queue create mailbox command
13395 * fails this function will return -ENXIO.
13398 lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
13399 struct lpfc_queue *cq, uint32_t subtype)
13401 struct lpfc_mbx_wq_create *wq_create;
13402 struct lpfc_dmabuf *dmabuf;
13403 LPFC_MBOXQ_t *mbox;
13404 int rc, length, status = 0;
13405 uint32_t shdr_status, shdr_add_status;
13406 union lpfc_sli4_cfg_shdr *shdr;
13407 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
13408 struct dma_address *page;
13409 void __iomem *bar_memmap_p;
13410 uint32_t db_offset;
13411 uint16_t pci_barset;
13413 /* sanity check on queue memory */
13416 if (!phba->sli4_hba.pc_sli4_params.supported)
13417 hw_page_size = SLI4_PAGE_SIZE;
13419 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13422 length = (sizeof(struct lpfc_mbx_wq_create) -
13423 sizeof(struct lpfc_sli4_cfg_mhdr));
13424 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13425 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
13426 length, LPFC_SLI4_MBX_EMBED);
13427 wq_create = &mbox->u.mqe.un.wq_create;
13428 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
13429 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
13431 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
13434 /* wqv is the earliest version supported, NOT the latest */
13435 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13436 phba->sli4_hba.pc_sli4_params.wqv);
13438 switch (phba->sli4_hba.pc_sli4_params.wqv) {
13439 case LPFC_Q_CREATE_VERSION_0:
13440 switch (wq->entry_size) {
13443 /* Nothing to do, version 0 ONLY supports 64 byte */
13444 page = wq_create->u.request.page;
13447 if (!(phba->sli4_hba.pc_sli4_params.wqsize &
13448 LPFC_WQ_SZ128_SUPPORT)) {
13452 /* If we get here the HBA MUST also support V1 and
13455 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13456 LPFC_Q_CREATE_VERSION_1);
13458 bf_set(lpfc_mbx_wq_create_wqe_count,
13459 &wq_create->u.request_1, wq->entry_count);
13460 bf_set(lpfc_mbx_wq_create_wqe_size,
13461 &wq_create->u.request_1,
13462 LPFC_WQ_WQE_SIZE_128);
13463 bf_set(lpfc_mbx_wq_create_page_size,
13464 &wq_create->u.request_1,
13465 (PAGE_SIZE/SLI4_PAGE_SIZE));
13466 page = wq_create->u.request_1.page;
13470 case LPFC_Q_CREATE_VERSION_1:
13471 bf_set(lpfc_mbx_wq_create_wqe_count, &wq_create->u.request_1,
13473 switch (wq->entry_size) {
13476 bf_set(lpfc_mbx_wq_create_wqe_size,
13477 &wq_create->u.request_1,
13478 LPFC_WQ_WQE_SIZE_64);
13481 if (!(phba->sli4_hba.pc_sli4_params.wqsize &
13482 LPFC_WQ_SZ128_SUPPORT)) {
13486 bf_set(lpfc_mbx_wq_create_wqe_size,
13487 &wq_create->u.request_1,
13488 LPFC_WQ_WQE_SIZE_128);
13491 bf_set(lpfc_mbx_wq_create_page_size, &wq_create->u.request_1,
13492 (PAGE_SIZE/SLI4_PAGE_SIZE));
13493 page = wq_create->u.request_1.page;
13500 list_for_each_entry(dmabuf, &wq->page_list, list) {
13501 memset(dmabuf->virt, 0, hw_page_size);
13502 page[dmabuf->buffer_tag].addr_lo = putPaddrLow(dmabuf->phys);
13503 page[dmabuf->buffer_tag].addr_hi = putPaddrHigh(dmabuf->phys);
13506 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
13507 bf_set(lpfc_mbx_wq_create_dua, &wq_create->u.request, 1);
13509 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13510 /* The IOCTL status is embedded in the mailbox subheader. */
13511 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13512 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13513 if (shdr_status || shdr_add_status || rc) {
13514 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13515 "2503 WQ_CREATE mailbox failed with "
13516 "status x%x add_status x%x, mbx status x%x\n",
13517 shdr_status, shdr_add_status, rc);
13521 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response);
13522 if (wq->queue_id == 0xFFFF) {
13526 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
13527 wq->db_format = bf_get(lpfc_mbx_wq_create_db_format,
13528 &wq_create->u.response);
13529 if ((wq->db_format != LPFC_DB_LIST_FORMAT) &&
13530 (wq->db_format != LPFC_DB_RING_FORMAT)) {
13531 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13532 "3265 WQ[%d] doorbell format not "
13533 "supported: x%x\n", wq->queue_id,
13538 pci_barset = bf_get(lpfc_mbx_wq_create_bar_set,
13539 &wq_create->u.response);
13540 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
13541 if (!bar_memmap_p) {
13542 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13543 "3263 WQ[%d] failed to memmap pci "
13544 "barset:x%x\n", wq->queue_id,
13549 db_offset = wq_create->u.response.doorbell_offset;
13550 if ((db_offset != LPFC_ULP0_WQ_DOORBELL) &&
13551 (db_offset != LPFC_ULP1_WQ_DOORBELL)) {
13552 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13553 "3252 WQ[%d] doorbell offset not "
13554 "supported: x%x\n", wq->queue_id,
13559 wq->db_regaddr = bar_memmap_p + db_offset;
13560 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13561 "3264 WQ[%d]: barset:x%x, offset:x%x, "
13562 "format:x%x\n", wq->queue_id, pci_barset,
13563 db_offset, wq->db_format);
13565 wq->db_format = LPFC_DB_LIST_FORMAT;
13566 wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
13568 wq->type = LPFC_WQ;
13569 wq->assoc_qid = cq->queue_id;
13570 wq->subtype = subtype;
13571 wq->host_index = 0;
13573 wq->entry_repost = LPFC_RELEASE_NOTIFICATION_INTERVAL;
13575 /* link the wq onto the parent cq child list */
13576 list_add_tail(&wq->list, &cq->child_list);
13578 mempool_free(mbox, phba->mbox_mem_pool);
13583 * lpfc_rq_adjust_repost - Adjust entry_repost for an RQ
13584 * @phba: HBA structure that indicates port to create a queue on.
13585 * @rq: The queue structure to use for the receive queue.
13586 * @qno: The associated HBQ number
13589 * For SLI4 we need to adjust the RQ repost value based on
13590 * the number of buffers that are initially posted to the RQ.
13593 lpfc_rq_adjust_repost(struct lpfc_hba *phba, struct lpfc_queue *rq, int qno)
13597 /* sanity check on queue memory */
13600 cnt = lpfc_hbq_defs[qno]->entry_count;
13602 /* Recalc repost for RQs based on buffers initially posted */
13604 if (cnt < LPFC_QUEUE_MIN_REPOST)
13605 cnt = LPFC_QUEUE_MIN_REPOST;
13607 rq->entry_repost = cnt;
13611 * lpfc_rq_create - Create a Receive Queue on the HBA
13612 * @phba: HBA structure that indicates port to create a queue on.
13613 * @hrq: The queue structure to use to create the header receive queue.
13614 * @drq: The queue structure to use to create the data receive queue.
13615 * @cq: The completion queue to bind this work queue to.
13617 * This function creates a receive buffer queue pair , as detailed in @hrq and
13618 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
13621 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
13622 * struct is used to get the entry count that is necessary to determine the
13623 * number of pages to use for this queue. The @cq is used to indicate which
13624 * completion queue to bind received buffers that are posted to these queues to.
13625 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
13626 * receive queue pair. This function is asynchronous and will wait for the
13627 * mailbox command to finish before continuing.
13629 * On success this function will return a zero. If unable to allocate enough
13630 * memory this function will return -ENOMEM. If the queue create mailbox command
13631 * fails this function will return -ENXIO.
13634 lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
13635 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
13637 struct lpfc_mbx_rq_create *rq_create;
13638 struct lpfc_dmabuf *dmabuf;
13639 LPFC_MBOXQ_t *mbox;
13640 int rc, length, status = 0;
13641 uint32_t shdr_status, shdr_add_status;
13642 union lpfc_sli4_cfg_shdr *shdr;
13643 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
13644 void __iomem *bar_memmap_p;
13645 uint32_t db_offset;
13646 uint16_t pci_barset;
13648 /* sanity check on queue memory */
13649 if (!hrq || !drq || !cq)
13651 if (!phba->sli4_hba.pc_sli4_params.supported)
13652 hw_page_size = SLI4_PAGE_SIZE;
13654 if (hrq->entry_count != drq->entry_count)
13656 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13659 length = (sizeof(struct lpfc_mbx_rq_create) -
13660 sizeof(struct lpfc_sli4_cfg_mhdr));
13661 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13662 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
13663 length, LPFC_SLI4_MBX_EMBED);
13664 rq_create = &mbox->u.mqe.un.rq_create;
13665 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
13666 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13667 phba->sli4_hba.pc_sli4_params.rqv);
13668 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
13669 bf_set(lpfc_rq_context_rqe_count_1,
13670 &rq_create->u.request.context,
13672 rq_create->u.request.context.buffer_size = LPFC_HDR_BUF_SIZE;
13673 bf_set(lpfc_rq_context_rqe_size,
13674 &rq_create->u.request.context,
13676 bf_set(lpfc_rq_context_page_size,
13677 &rq_create->u.request.context,
13678 (PAGE_SIZE/SLI4_PAGE_SIZE));
13680 switch (hrq->entry_count) {
13682 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13683 "2535 Unsupported RQ count. (%d)\n",
13685 if (hrq->entry_count < 512) {
13689 /* otherwise default to smallest count (drop through) */
13691 bf_set(lpfc_rq_context_rqe_count,
13692 &rq_create->u.request.context,
13693 LPFC_RQ_RING_SIZE_512);
13696 bf_set(lpfc_rq_context_rqe_count,
13697 &rq_create->u.request.context,
13698 LPFC_RQ_RING_SIZE_1024);
13701 bf_set(lpfc_rq_context_rqe_count,
13702 &rq_create->u.request.context,
13703 LPFC_RQ_RING_SIZE_2048);
13706 bf_set(lpfc_rq_context_rqe_count,
13707 &rq_create->u.request.context,
13708 LPFC_RQ_RING_SIZE_4096);
13711 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
13712 LPFC_HDR_BUF_SIZE);
13714 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
13716 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
13718 list_for_each_entry(dmabuf, &hrq->page_list, list) {
13719 memset(dmabuf->virt, 0, hw_page_size);
13720 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13721 putPaddrLow(dmabuf->phys);
13722 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13723 putPaddrHigh(dmabuf->phys);
13725 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
13726 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
13728 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13729 /* The IOCTL status is embedded in the mailbox subheader. */
13730 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13731 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13732 if (shdr_status || shdr_add_status || rc) {
13733 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13734 "2504 RQ_CREATE mailbox failed with "
13735 "status x%x add_status x%x, mbx status x%x\n",
13736 shdr_status, shdr_add_status, rc);
13740 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
13741 if (hrq->queue_id == 0xFFFF) {
13746 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
13747 hrq->db_format = bf_get(lpfc_mbx_rq_create_db_format,
13748 &rq_create->u.response);
13749 if ((hrq->db_format != LPFC_DB_LIST_FORMAT) &&
13750 (hrq->db_format != LPFC_DB_RING_FORMAT)) {
13751 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13752 "3262 RQ [%d] doorbell format not "
13753 "supported: x%x\n", hrq->queue_id,
13759 pci_barset = bf_get(lpfc_mbx_rq_create_bar_set,
13760 &rq_create->u.response);
13761 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
13762 if (!bar_memmap_p) {
13763 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13764 "3269 RQ[%d] failed to memmap pci "
13765 "barset:x%x\n", hrq->queue_id,
13771 db_offset = rq_create->u.response.doorbell_offset;
13772 if ((db_offset != LPFC_ULP0_RQ_DOORBELL) &&
13773 (db_offset != LPFC_ULP1_RQ_DOORBELL)) {
13774 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13775 "3270 RQ[%d] doorbell offset not "
13776 "supported: x%x\n", hrq->queue_id,
13781 hrq->db_regaddr = bar_memmap_p + db_offset;
13782 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13783 "3266 RQ[qid:%d]: barset:x%x, offset:x%x, "
13784 "format:x%x\n", hrq->queue_id, pci_barset,
13785 db_offset, hrq->db_format);
13787 hrq->db_format = LPFC_DB_RING_FORMAT;
13788 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
13790 hrq->type = LPFC_HRQ;
13791 hrq->assoc_qid = cq->queue_id;
13792 hrq->subtype = subtype;
13793 hrq->host_index = 0;
13794 hrq->hba_index = 0;
13796 /* now create the data queue */
13797 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13798 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
13799 length, LPFC_SLI4_MBX_EMBED);
13800 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13801 phba->sli4_hba.pc_sli4_params.rqv);
13802 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
13803 bf_set(lpfc_rq_context_rqe_count_1,
13804 &rq_create->u.request.context, hrq->entry_count);
13805 rq_create->u.request.context.buffer_size = LPFC_DATA_BUF_SIZE;
13806 bf_set(lpfc_rq_context_rqe_size, &rq_create->u.request.context,
13808 bf_set(lpfc_rq_context_page_size, &rq_create->u.request.context,
13809 (PAGE_SIZE/SLI4_PAGE_SIZE));
13811 switch (drq->entry_count) {
13813 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13814 "2536 Unsupported RQ count. (%d)\n",
13816 if (drq->entry_count < 512) {
13820 /* otherwise default to smallest count (drop through) */
13822 bf_set(lpfc_rq_context_rqe_count,
13823 &rq_create->u.request.context,
13824 LPFC_RQ_RING_SIZE_512);
13827 bf_set(lpfc_rq_context_rqe_count,
13828 &rq_create->u.request.context,
13829 LPFC_RQ_RING_SIZE_1024);
13832 bf_set(lpfc_rq_context_rqe_count,
13833 &rq_create->u.request.context,
13834 LPFC_RQ_RING_SIZE_2048);
13837 bf_set(lpfc_rq_context_rqe_count,
13838 &rq_create->u.request.context,
13839 LPFC_RQ_RING_SIZE_4096);
13842 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
13843 LPFC_DATA_BUF_SIZE);
13845 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
13847 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
13849 list_for_each_entry(dmabuf, &drq->page_list, list) {
13850 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13851 putPaddrLow(dmabuf->phys);
13852 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13853 putPaddrHigh(dmabuf->phys);
13855 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
13856 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
13857 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13858 /* The IOCTL status is embedded in the mailbox subheader. */
13859 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
13860 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13861 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13862 if (shdr_status || shdr_add_status || rc) {
13866 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
13867 if (drq->queue_id == 0xFFFF) {
13871 drq->type = LPFC_DRQ;
13872 drq->assoc_qid = cq->queue_id;
13873 drq->subtype = subtype;
13874 drq->host_index = 0;
13875 drq->hba_index = 0;
13877 /* link the header and data RQs onto the parent cq child list */
13878 list_add_tail(&hrq->list, &cq->child_list);
13879 list_add_tail(&drq->list, &cq->child_list);
13882 mempool_free(mbox, phba->mbox_mem_pool);
13887 * lpfc_eq_destroy - Destroy an event Queue on the HBA
13888 * @eq: The queue structure associated with the queue to destroy.
13890 * This function destroys a queue, as detailed in @eq by sending an mailbox
13891 * command, specific to the type of queue, to the HBA.
13893 * The @eq struct is used to get the queue ID of the queue to destroy.
13895 * On success this function will return a zero. If the queue destroy mailbox
13896 * command fails this function will return -ENXIO.
13899 lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
13901 LPFC_MBOXQ_t *mbox;
13902 int rc, length, status = 0;
13903 uint32_t shdr_status, shdr_add_status;
13904 union lpfc_sli4_cfg_shdr *shdr;
13906 /* sanity check on queue memory */
13909 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
13912 length = (sizeof(struct lpfc_mbx_eq_destroy) -
13913 sizeof(struct lpfc_sli4_cfg_mhdr));
13914 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13915 LPFC_MBOX_OPCODE_EQ_DESTROY,
13916 length, LPFC_SLI4_MBX_EMBED);
13917 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
13919 mbox->vport = eq->phba->pport;
13920 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13922 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
13923 /* The IOCTL status is embedded in the mailbox subheader. */
13924 shdr = (union lpfc_sli4_cfg_shdr *)
13925 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
13926 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13927 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13928 if (shdr_status || shdr_add_status || rc) {
13929 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13930 "2505 EQ_DESTROY mailbox failed with "
13931 "status x%x add_status x%x, mbx status x%x\n",
13932 shdr_status, shdr_add_status, rc);
13936 /* Remove eq from any list */
13937 list_del_init(&eq->list);
13938 mempool_free(mbox, eq->phba->mbox_mem_pool);
13943 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
13944 * @cq: The queue structure associated with the queue to destroy.
13946 * This function destroys a queue, as detailed in @cq by sending an mailbox
13947 * command, specific to the type of queue, to the HBA.
13949 * The @cq struct is used to get the queue ID of the queue to destroy.
13951 * On success this function will return a zero. If the queue destroy mailbox
13952 * command fails this function will return -ENXIO.
13955 lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
13957 LPFC_MBOXQ_t *mbox;
13958 int rc, length, status = 0;
13959 uint32_t shdr_status, shdr_add_status;
13960 union lpfc_sli4_cfg_shdr *shdr;
13962 /* sanity check on queue memory */
13965 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
13968 length = (sizeof(struct lpfc_mbx_cq_destroy) -
13969 sizeof(struct lpfc_sli4_cfg_mhdr));
13970 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13971 LPFC_MBOX_OPCODE_CQ_DESTROY,
13972 length, LPFC_SLI4_MBX_EMBED);
13973 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
13975 mbox->vport = cq->phba->pport;
13976 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13977 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
13978 /* The IOCTL status is embedded in the mailbox subheader. */
13979 shdr = (union lpfc_sli4_cfg_shdr *)
13980 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
13981 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13982 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13983 if (shdr_status || shdr_add_status || rc) {
13984 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13985 "2506 CQ_DESTROY mailbox failed with "
13986 "status x%x add_status x%x, mbx status x%x\n",
13987 shdr_status, shdr_add_status, rc);
13990 /* Remove cq from any list */
13991 list_del_init(&cq->list);
13992 mempool_free(mbox, cq->phba->mbox_mem_pool);
13997 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
13998 * @qm: The queue structure associated with the queue to destroy.
14000 * This function destroys a queue, as detailed in @mq by sending an mailbox
14001 * command, specific to the type of queue, to the HBA.
14003 * The @mq struct is used to get the queue ID of the queue to destroy.
14005 * On success this function will return a zero. If the queue destroy mailbox
14006 * command fails this function will return -ENXIO.
14009 lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
14011 LPFC_MBOXQ_t *mbox;
14012 int rc, length, status = 0;
14013 uint32_t shdr_status, shdr_add_status;
14014 union lpfc_sli4_cfg_shdr *shdr;
14016 /* sanity check on queue memory */
14019 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
14022 length = (sizeof(struct lpfc_mbx_mq_destroy) -
14023 sizeof(struct lpfc_sli4_cfg_mhdr));
14024 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14025 LPFC_MBOX_OPCODE_MQ_DESTROY,
14026 length, LPFC_SLI4_MBX_EMBED);
14027 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
14029 mbox->vport = mq->phba->pport;
14030 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14031 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
14032 /* The IOCTL status is embedded in the mailbox subheader. */
14033 shdr = (union lpfc_sli4_cfg_shdr *)
14034 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
14035 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14036 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14037 if (shdr_status || shdr_add_status || rc) {
14038 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14039 "2507 MQ_DESTROY mailbox failed with "
14040 "status x%x add_status x%x, mbx status x%x\n",
14041 shdr_status, shdr_add_status, rc);
14044 /* Remove mq from any list */
14045 list_del_init(&mq->list);
14046 mempool_free(mbox, mq->phba->mbox_mem_pool);
14051 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
14052 * @wq: The queue structure associated with the queue to destroy.
14054 * This function destroys a queue, as detailed in @wq by sending an mailbox
14055 * command, specific to the type of queue, to the HBA.
14057 * The @wq struct is used to get the queue ID of the queue to destroy.
14059 * On success this function will return a zero. If the queue destroy mailbox
14060 * command fails this function will return -ENXIO.
14063 lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
14065 LPFC_MBOXQ_t *mbox;
14066 int rc, length, status = 0;
14067 uint32_t shdr_status, shdr_add_status;
14068 union lpfc_sli4_cfg_shdr *shdr;
14070 /* sanity check on queue memory */
14073 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
14076 length = (sizeof(struct lpfc_mbx_wq_destroy) -
14077 sizeof(struct lpfc_sli4_cfg_mhdr));
14078 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14079 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
14080 length, LPFC_SLI4_MBX_EMBED);
14081 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
14083 mbox->vport = wq->phba->pport;
14084 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14085 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
14086 shdr = (union lpfc_sli4_cfg_shdr *)
14087 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
14088 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14089 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14090 if (shdr_status || shdr_add_status || rc) {
14091 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14092 "2508 WQ_DESTROY mailbox failed with "
14093 "status x%x add_status x%x, mbx status x%x\n",
14094 shdr_status, shdr_add_status, rc);
14097 /* Remove wq from any list */
14098 list_del_init(&wq->list);
14099 mempool_free(mbox, wq->phba->mbox_mem_pool);
14104 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
14105 * @rq: The queue structure associated with the queue to destroy.
14107 * This function destroys a queue, as detailed in @rq by sending an mailbox
14108 * command, specific to the type of queue, to the HBA.
14110 * The @rq struct is used to get the queue ID of the queue to destroy.
14112 * On success this function will return a zero. If the queue destroy mailbox
14113 * command fails this function will return -ENXIO.
14116 lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
14117 struct lpfc_queue *drq)
14119 LPFC_MBOXQ_t *mbox;
14120 int rc, length, status = 0;
14121 uint32_t shdr_status, shdr_add_status;
14122 union lpfc_sli4_cfg_shdr *shdr;
14124 /* sanity check on queue memory */
14127 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
14130 length = (sizeof(struct lpfc_mbx_rq_destroy) -
14131 sizeof(struct lpfc_sli4_cfg_mhdr));
14132 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14133 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
14134 length, LPFC_SLI4_MBX_EMBED);
14135 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
14137 mbox->vport = hrq->phba->pport;
14138 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14139 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
14140 /* The IOCTL status is embedded in the mailbox subheader. */
14141 shdr = (union lpfc_sli4_cfg_shdr *)
14142 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
14143 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14144 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14145 if (shdr_status || shdr_add_status || rc) {
14146 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14147 "2509 RQ_DESTROY mailbox failed with "
14148 "status x%x add_status x%x, mbx status x%x\n",
14149 shdr_status, shdr_add_status, rc);
14150 if (rc != MBX_TIMEOUT)
14151 mempool_free(mbox, hrq->phba->mbox_mem_pool);
14154 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
14156 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
14157 shdr = (union lpfc_sli4_cfg_shdr *)
14158 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
14159 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14160 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14161 if (shdr_status || shdr_add_status || rc) {
14162 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14163 "2510 RQ_DESTROY mailbox failed with "
14164 "status x%x add_status x%x, mbx status x%x\n",
14165 shdr_status, shdr_add_status, rc);
14168 list_del_init(&hrq->list);
14169 list_del_init(&drq->list);
14170 mempool_free(mbox, hrq->phba->mbox_mem_pool);
14175 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
14176 * @phba: The virtual port for which this call being executed.
14177 * @pdma_phys_addr0: Physical address of the 1st SGL page.
14178 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
14179 * @xritag: the xritag that ties this io to the SGL pages.
14181 * This routine will post the sgl pages for the IO that has the xritag
14182 * that is in the iocbq structure. The xritag is assigned during iocbq
14183 * creation and persists for as long as the driver is loaded.
14184 * if the caller has fewer than 256 scatter gather segments to map then
14185 * pdma_phys_addr1 should be 0.
14186 * If the caller needs to map more than 256 scatter gather segment then
14187 * pdma_phys_addr1 should be a valid physical address.
14188 * physical address for SGLs must be 64 byte aligned.
14189 * If you are going to map 2 SGL's then the first one must have 256 entries
14190 * the second sgl can have between 1 and 256 entries.
14194 * -ENXIO, -ENOMEM - Failure
14197 lpfc_sli4_post_sgl(struct lpfc_hba *phba,
14198 dma_addr_t pdma_phys_addr0,
14199 dma_addr_t pdma_phys_addr1,
14202 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
14203 LPFC_MBOXQ_t *mbox;
14205 uint32_t shdr_status, shdr_add_status;
14207 union lpfc_sli4_cfg_shdr *shdr;
14209 if (xritag == NO_XRI) {
14210 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14211 "0364 Invalid param:\n");
14215 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14219 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14220 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
14221 sizeof(struct lpfc_mbx_post_sgl_pages) -
14222 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
14224 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
14225 &mbox->u.mqe.un.post_sgl_pages;
14226 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
14227 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
14229 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
14230 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
14231 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
14232 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
14234 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
14235 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
14236 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
14237 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
14238 if (!phba->sli4_hba.intr_enable)
14239 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14241 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
14242 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
14244 /* The IOCTL status is embedded in the mailbox subheader. */
14245 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
14246 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14247 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14248 if (rc != MBX_TIMEOUT)
14249 mempool_free(mbox, phba->mbox_mem_pool);
14250 if (shdr_status || shdr_add_status || rc) {
14251 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14252 "2511 POST_SGL mailbox failed with "
14253 "status x%x add_status x%x, mbx status x%x\n",
14254 shdr_status, shdr_add_status, rc);
14261 * lpfc_sli4_alloc_xri - Get an available rpi in the device's range
14262 * @phba: pointer to lpfc hba data structure.
14264 * This routine is invoked to post rpi header templates to the
14265 * HBA consistent with the SLI-4 interface spec. This routine
14266 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
14267 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
14270 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
14271 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
14274 lpfc_sli4_alloc_xri(struct lpfc_hba *phba)
14279 * Fetch the next logical xri. Because this index is logical,
14280 * the driver starts at 0 each time.
14282 spin_lock_irq(&phba->hbalock);
14283 xri = find_next_zero_bit(phba->sli4_hba.xri_bmask,
14284 phba->sli4_hba.max_cfg_param.max_xri, 0);
14285 if (xri >= phba->sli4_hba.max_cfg_param.max_xri) {
14286 spin_unlock_irq(&phba->hbalock);
14289 set_bit(xri, phba->sli4_hba.xri_bmask);
14290 phba->sli4_hba.max_cfg_param.xri_used++;
14292 spin_unlock_irq(&phba->hbalock);
14297 * lpfc_sli4_free_xri - Release an xri for reuse.
14298 * @phba: pointer to lpfc hba data structure.
14300 * This routine is invoked to release an xri to the pool of
14301 * available rpis maintained by the driver.
14304 __lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
14306 if (test_and_clear_bit(xri, phba->sli4_hba.xri_bmask)) {
14307 phba->sli4_hba.max_cfg_param.xri_used--;
14312 * lpfc_sli4_free_xri - Release an xri for reuse.
14313 * @phba: pointer to lpfc hba data structure.
14315 * This routine is invoked to release an xri to the pool of
14316 * available rpis maintained by the driver.
14319 lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
14321 spin_lock_irq(&phba->hbalock);
14322 __lpfc_sli4_free_xri(phba, xri);
14323 spin_unlock_irq(&phba->hbalock);
14327 * lpfc_sli4_next_xritag - Get an xritag for the io
14328 * @phba: Pointer to HBA context object.
14330 * This function gets an xritag for the iocb. If there is no unused xritag
14331 * it will return 0xffff.
14332 * The function returns the allocated xritag if successful, else returns zero.
14333 * Zero is not a valid xritag.
14334 * The caller is not required to hold any lock.
14337 lpfc_sli4_next_xritag(struct lpfc_hba *phba)
14339 uint16_t xri_index;
14341 xri_index = lpfc_sli4_alloc_xri(phba);
14342 if (xri_index == NO_XRI)
14343 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
14344 "2004 Failed to allocate XRI.last XRITAG is %d"
14345 " Max XRI is %d, Used XRI is %d\n",
14347 phba->sli4_hba.max_cfg_param.max_xri,
14348 phba->sli4_hba.max_cfg_param.xri_used);
14353 * lpfc_sli4_post_els_sgl_list - post a block of ELS sgls to the port.
14354 * @phba: pointer to lpfc hba data structure.
14355 * @post_sgl_list: pointer to els sgl entry list.
14356 * @count: number of els sgl entries on the list.
14358 * This routine is invoked to post a block of driver's sgl pages to the
14359 * HBA using non-embedded mailbox command. No Lock is held. This routine
14360 * is only called when the driver is loading and after all IO has been
14364 lpfc_sli4_post_els_sgl_list(struct lpfc_hba *phba,
14365 struct list_head *post_sgl_list,
14368 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
14369 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
14370 struct sgl_page_pairs *sgl_pg_pairs;
14372 LPFC_MBOXQ_t *mbox;
14373 uint32_t reqlen, alloclen, pg_pairs;
14375 uint16_t xritag_start = 0;
14377 uint32_t shdr_status, shdr_add_status;
14378 union lpfc_sli4_cfg_shdr *shdr;
14380 reqlen = phba->sli4_hba.els_xri_cnt * sizeof(struct sgl_page_pairs) +
14381 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
14382 if (reqlen > SLI4_PAGE_SIZE) {
14383 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
14384 "2559 Block sgl registration required DMA "
14385 "size (%d) great than a page\n", reqlen);
14388 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14392 /* Allocate DMA memory and set up the non-embedded mailbox command */
14393 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14394 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
14395 LPFC_SLI4_MBX_NEMBED);
14397 if (alloclen < reqlen) {
14398 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14399 "0285 Allocated DMA memory size (%d) is "
14400 "less than the requested DMA memory "
14401 "size (%d)\n", alloclen, reqlen);
14402 lpfc_sli4_mbox_cmd_free(phba, mbox);
14405 /* Set up the SGL pages in the non-embedded DMA pages */
14406 viraddr = mbox->sge_array->addr[0];
14407 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
14408 sgl_pg_pairs = &sgl->sgl_pg_pairs;
14411 list_for_each_entry_safe(sglq_entry, sglq_next, post_sgl_list, list) {
14412 /* Set up the sge entry */
14413 sgl_pg_pairs->sgl_pg0_addr_lo =
14414 cpu_to_le32(putPaddrLow(sglq_entry->phys));
14415 sgl_pg_pairs->sgl_pg0_addr_hi =
14416 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
14417 sgl_pg_pairs->sgl_pg1_addr_lo =
14418 cpu_to_le32(putPaddrLow(0));
14419 sgl_pg_pairs->sgl_pg1_addr_hi =
14420 cpu_to_le32(putPaddrHigh(0));
14422 /* Keep the first xritag on the list */
14424 xritag_start = sglq_entry->sli4_xritag;
14429 /* Complete initialization and perform endian conversion. */
14430 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
14431 bf_set(lpfc_post_sgl_pages_xricnt, sgl, phba->sli4_hba.els_xri_cnt);
14432 sgl->word0 = cpu_to_le32(sgl->word0);
14433 if (!phba->sli4_hba.intr_enable)
14434 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14436 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
14437 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
14439 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
14440 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14441 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14442 if (rc != MBX_TIMEOUT)
14443 lpfc_sli4_mbox_cmd_free(phba, mbox);
14444 if (shdr_status || shdr_add_status || rc) {
14445 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14446 "2513 POST_SGL_BLOCK mailbox command failed "
14447 "status x%x add_status x%x mbx status x%x\n",
14448 shdr_status, shdr_add_status, rc);
14455 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
14456 * @phba: pointer to lpfc hba data structure.
14457 * @sblist: pointer to scsi buffer list.
14458 * @count: number of scsi buffers on the list.
14460 * This routine is invoked to post a block of @count scsi sgl pages from a
14461 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
14466 lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba,
14467 struct list_head *sblist,
14470 struct lpfc_scsi_buf *psb;
14471 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
14472 struct sgl_page_pairs *sgl_pg_pairs;
14474 LPFC_MBOXQ_t *mbox;
14475 uint32_t reqlen, alloclen, pg_pairs;
14477 uint16_t xritag_start = 0;
14479 uint32_t shdr_status, shdr_add_status;
14480 dma_addr_t pdma_phys_bpl1;
14481 union lpfc_sli4_cfg_shdr *shdr;
14483 /* Calculate the requested length of the dma memory */
14484 reqlen = count * sizeof(struct sgl_page_pairs) +
14485 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
14486 if (reqlen > SLI4_PAGE_SIZE) {
14487 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
14488 "0217 Block sgl registration required DMA "
14489 "size (%d) great than a page\n", reqlen);
14492 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14494 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14495 "0283 Failed to allocate mbox cmd memory\n");
14499 /* Allocate DMA memory and set up the non-embedded mailbox command */
14500 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14501 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
14502 LPFC_SLI4_MBX_NEMBED);
14504 if (alloclen < reqlen) {
14505 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14506 "2561 Allocated DMA memory size (%d) is "
14507 "less than the requested DMA memory "
14508 "size (%d)\n", alloclen, reqlen);
14509 lpfc_sli4_mbox_cmd_free(phba, mbox);
14513 /* Get the first SGE entry from the non-embedded DMA memory */
14514 viraddr = mbox->sge_array->addr[0];
14516 /* Set up the SGL pages in the non-embedded DMA pages */
14517 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
14518 sgl_pg_pairs = &sgl->sgl_pg_pairs;
14521 list_for_each_entry(psb, sblist, list) {
14522 /* Set up the sge entry */
14523 sgl_pg_pairs->sgl_pg0_addr_lo =
14524 cpu_to_le32(putPaddrLow(psb->dma_phys_bpl));
14525 sgl_pg_pairs->sgl_pg0_addr_hi =
14526 cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl));
14527 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
14528 pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE;
14530 pdma_phys_bpl1 = 0;
14531 sgl_pg_pairs->sgl_pg1_addr_lo =
14532 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
14533 sgl_pg_pairs->sgl_pg1_addr_hi =
14534 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
14535 /* Keep the first xritag on the list */
14537 xritag_start = psb->cur_iocbq.sli4_xritag;
14541 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
14542 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
14543 /* Perform endian conversion if necessary */
14544 sgl->word0 = cpu_to_le32(sgl->word0);
14546 if (!phba->sli4_hba.intr_enable)
14547 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14549 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
14550 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
14552 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
14553 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14554 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14555 if (rc != MBX_TIMEOUT)
14556 lpfc_sli4_mbox_cmd_free(phba, mbox);
14557 if (shdr_status || shdr_add_status || rc) {
14558 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14559 "2564 POST_SGL_BLOCK mailbox command failed "
14560 "status x%x add_status x%x mbx status x%x\n",
14561 shdr_status, shdr_add_status, rc);
14568 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
14569 * @phba: pointer to lpfc_hba struct that the frame was received on
14570 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14572 * This function checks the fields in the @fc_hdr to see if the FC frame is a
14573 * valid type of frame that the LPFC driver will handle. This function will
14574 * return a zero if the frame is a valid frame or a non zero value when the
14575 * frame does not pass the check.
14578 lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
14580 /* make rctl_names static to save stack space */
14581 static char *rctl_names[] = FC_RCTL_NAMES_INIT;
14582 char *type_names[] = FC_TYPE_NAMES_INIT;
14583 struct fc_vft_header *fc_vft_hdr;
14584 uint32_t *header = (uint32_t *) fc_hdr;
14586 switch (fc_hdr->fh_r_ctl) {
14587 case FC_RCTL_DD_UNCAT: /* uncategorized information */
14588 case FC_RCTL_DD_SOL_DATA: /* solicited data */
14589 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
14590 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
14591 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
14592 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
14593 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
14594 case FC_RCTL_DD_CMD_STATUS: /* command status */
14595 case FC_RCTL_ELS_REQ: /* extended link services request */
14596 case FC_RCTL_ELS_REP: /* extended link services reply */
14597 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
14598 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
14599 case FC_RCTL_BA_NOP: /* basic link service NOP */
14600 case FC_RCTL_BA_ABTS: /* basic link service abort */
14601 case FC_RCTL_BA_RMC: /* remove connection */
14602 case FC_RCTL_BA_ACC: /* basic accept */
14603 case FC_RCTL_BA_RJT: /* basic reject */
14604 case FC_RCTL_BA_PRMT:
14605 case FC_RCTL_ACK_1: /* acknowledge_1 */
14606 case FC_RCTL_ACK_0: /* acknowledge_0 */
14607 case FC_RCTL_P_RJT: /* port reject */
14608 case FC_RCTL_F_RJT: /* fabric reject */
14609 case FC_RCTL_P_BSY: /* port busy */
14610 case FC_RCTL_F_BSY: /* fabric busy to data frame */
14611 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
14612 case FC_RCTL_LCR: /* link credit reset */
14613 case FC_RCTL_END: /* end */
14615 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
14616 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
14617 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
14618 return lpfc_fc_frame_check(phba, fc_hdr);
14622 switch (fc_hdr->fh_type) {
14634 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
14635 "2538 Received frame rctl:%s (x%x), type:%s (x%x), "
14636 "frame Data:%08x %08x %08x %08x %08x %08x %08x\n",
14637 rctl_names[fc_hdr->fh_r_ctl], fc_hdr->fh_r_ctl,
14638 type_names[fc_hdr->fh_type], fc_hdr->fh_type,
14639 be32_to_cpu(header[0]), be32_to_cpu(header[1]),
14640 be32_to_cpu(header[2]), be32_to_cpu(header[3]),
14641 be32_to_cpu(header[4]), be32_to_cpu(header[5]),
14642 be32_to_cpu(header[6]));
14645 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
14646 "2539 Dropped frame rctl:%s type:%s\n",
14647 rctl_names[fc_hdr->fh_r_ctl],
14648 type_names[fc_hdr->fh_type]);
14653 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
14654 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14656 * This function processes the FC header to retrieve the VFI from the VF
14657 * header, if one exists. This function will return the VFI if one exists
14658 * or 0 if no VSAN Header exists.
14661 lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
14663 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
14665 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
14667 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
14671 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
14672 * @phba: Pointer to the HBA structure to search for the vport on
14673 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14674 * @fcfi: The FC Fabric ID that the frame came from
14676 * This function searches the @phba for a vport that matches the content of the
14677 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
14678 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
14679 * returns the matching vport pointer or NULL if unable to match frame to a
14682 static struct lpfc_vport *
14683 lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
14686 struct lpfc_vport **vports;
14687 struct lpfc_vport *vport = NULL;
14689 uint32_t did = (fc_hdr->fh_d_id[0] << 16 |
14690 fc_hdr->fh_d_id[1] << 8 |
14691 fc_hdr->fh_d_id[2]);
14693 if (did == Fabric_DID)
14694 return phba->pport;
14695 if ((phba->pport->fc_flag & FC_PT2PT) &&
14696 !(phba->link_state == LPFC_HBA_READY))
14697 return phba->pport;
14699 vports = lpfc_create_vport_work_array(phba);
14700 if (vports != NULL)
14701 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
14702 if (phba->fcf.fcfi == fcfi &&
14703 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
14704 vports[i]->fc_myDID == did) {
14709 lpfc_destroy_vport_work_array(phba, vports);
14714 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
14715 * @vport: The vport to work on.
14717 * This function updates the receive sequence time stamp for this vport. The
14718 * receive sequence time stamp indicates the time that the last frame of the
14719 * the sequence that has been idle for the longest amount of time was received.
14720 * the driver uses this time stamp to indicate if any received sequences have
14724 lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
14726 struct lpfc_dmabuf *h_buf;
14727 struct hbq_dmabuf *dmabuf = NULL;
14729 /* get the oldest sequence on the rcv list */
14730 h_buf = list_get_first(&vport->rcv_buffer_list,
14731 struct lpfc_dmabuf, list);
14734 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14735 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
14739 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
14740 * @vport: The vport that the received sequences were sent to.
14742 * This function cleans up all outstanding received sequences. This is called
14743 * by the driver when a link event or user action invalidates all the received
14747 lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
14749 struct lpfc_dmabuf *h_buf, *hnext;
14750 struct lpfc_dmabuf *d_buf, *dnext;
14751 struct hbq_dmabuf *dmabuf = NULL;
14753 /* start with the oldest sequence on the rcv list */
14754 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
14755 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14756 list_del_init(&dmabuf->hbuf.list);
14757 list_for_each_entry_safe(d_buf, dnext,
14758 &dmabuf->dbuf.list, list) {
14759 list_del_init(&d_buf->list);
14760 lpfc_in_buf_free(vport->phba, d_buf);
14762 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
14767 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
14768 * @vport: The vport that the received sequences were sent to.
14770 * This function determines whether any received sequences have timed out by
14771 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
14772 * indicates that there is at least one timed out sequence this routine will
14773 * go through the received sequences one at a time from most inactive to most
14774 * active to determine which ones need to be cleaned up. Once it has determined
14775 * that a sequence needs to be cleaned up it will simply free up the resources
14776 * without sending an abort.
14779 lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
14781 struct lpfc_dmabuf *h_buf, *hnext;
14782 struct lpfc_dmabuf *d_buf, *dnext;
14783 struct hbq_dmabuf *dmabuf = NULL;
14784 unsigned long timeout;
14785 int abort_count = 0;
14787 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
14788 vport->rcv_buffer_time_stamp);
14789 if (list_empty(&vport->rcv_buffer_list) ||
14790 time_before(jiffies, timeout))
14792 /* start with the oldest sequence on the rcv list */
14793 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
14794 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14795 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
14796 dmabuf->time_stamp);
14797 if (time_before(jiffies, timeout))
14800 list_del_init(&dmabuf->hbuf.list);
14801 list_for_each_entry_safe(d_buf, dnext,
14802 &dmabuf->dbuf.list, list) {
14803 list_del_init(&d_buf->list);
14804 lpfc_in_buf_free(vport->phba, d_buf);
14806 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
14809 lpfc_update_rcv_time_stamp(vport);
14813 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
14814 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
14816 * This function searches through the existing incomplete sequences that have
14817 * been sent to this @vport. If the frame matches one of the incomplete
14818 * sequences then the dbuf in the @dmabuf is added to the list of frames that
14819 * make up that sequence. If no sequence is found that matches this frame then
14820 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
14821 * This function returns a pointer to the first dmabuf in the sequence list that
14822 * the frame was linked to.
14824 static struct hbq_dmabuf *
14825 lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
14827 struct fc_frame_header *new_hdr;
14828 struct fc_frame_header *temp_hdr;
14829 struct lpfc_dmabuf *d_buf;
14830 struct lpfc_dmabuf *h_buf;
14831 struct hbq_dmabuf *seq_dmabuf = NULL;
14832 struct hbq_dmabuf *temp_dmabuf = NULL;
14834 INIT_LIST_HEAD(&dmabuf->dbuf.list);
14835 dmabuf->time_stamp = jiffies;
14836 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14837 /* Use the hdr_buf to find the sequence that this frame belongs to */
14838 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
14839 temp_hdr = (struct fc_frame_header *)h_buf->virt;
14840 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
14841 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
14842 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
14844 /* found a pending sequence that matches this frame */
14845 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14850 * This indicates first frame received for this sequence.
14851 * Queue the buffer on the vport's rcv_buffer_list.
14853 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
14854 lpfc_update_rcv_time_stamp(vport);
14857 temp_hdr = seq_dmabuf->hbuf.virt;
14858 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
14859 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
14860 list_del_init(&seq_dmabuf->hbuf.list);
14861 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
14862 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
14863 lpfc_update_rcv_time_stamp(vport);
14866 /* move this sequence to the tail to indicate a young sequence */
14867 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
14868 seq_dmabuf->time_stamp = jiffies;
14869 lpfc_update_rcv_time_stamp(vport);
14870 if (list_empty(&seq_dmabuf->dbuf.list)) {
14871 temp_hdr = dmabuf->hbuf.virt;
14872 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
14875 /* find the correct place in the sequence to insert this frame */
14876 list_for_each_entry_reverse(d_buf, &seq_dmabuf->dbuf.list, list) {
14877 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14878 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
14880 * If the frame's sequence count is greater than the frame on
14881 * the list then insert the frame right after this frame
14883 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
14884 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
14885 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
14893 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
14894 * @vport: pointer to a vitural port
14895 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14897 * This function tries to abort from the partially assembed sequence, described
14898 * by the information from basic abbort @dmabuf. It checks to see whether such
14899 * partially assembled sequence held by the driver. If so, it shall free up all
14900 * the frames from the partially assembled sequence.
14903 * true -- if there is matching partially assembled sequence present and all
14904 * the frames freed with the sequence;
14905 * false -- if there is no matching partially assembled sequence present so
14906 * nothing got aborted in the lower layer driver
14909 lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
14910 struct hbq_dmabuf *dmabuf)
14912 struct fc_frame_header *new_hdr;
14913 struct fc_frame_header *temp_hdr;
14914 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
14915 struct hbq_dmabuf *seq_dmabuf = NULL;
14917 /* Use the hdr_buf to find the sequence that matches this frame */
14918 INIT_LIST_HEAD(&dmabuf->dbuf.list);
14919 INIT_LIST_HEAD(&dmabuf->hbuf.list);
14920 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14921 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
14922 temp_hdr = (struct fc_frame_header *)h_buf->virt;
14923 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
14924 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
14925 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
14927 /* found a pending sequence that matches this frame */
14928 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14932 /* Free up all the frames from the partially assembled sequence */
14934 list_for_each_entry_safe(d_buf, n_buf,
14935 &seq_dmabuf->dbuf.list, list) {
14936 list_del_init(&d_buf->list);
14937 lpfc_in_buf_free(vport->phba, d_buf);
14945 * lpfc_sli4_abort_ulp_seq - Abort assembled unsol sequence from ulp
14946 * @vport: pointer to a vitural port
14947 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14949 * This function tries to abort from the assembed sequence from upper level
14950 * protocol, described by the information from basic abbort @dmabuf. It
14951 * checks to see whether such pending context exists at upper level protocol.
14952 * If so, it shall clean up the pending context.
14955 * true -- if there is matching pending context of the sequence cleaned
14957 * false -- if there is no matching pending context of the sequence present
14961 lpfc_sli4_abort_ulp_seq(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
14963 struct lpfc_hba *phba = vport->phba;
14966 /* Accepting abort at ulp with SLI4 only */
14967 if (phba->sli_rev < LPFC_SLI_REV4)
14970 /* Register all caring upper level protocols to attend abort */
14971 handled = lpfc_ct_handle_unsol_abort(phba, dmabuf);
14979 * lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler
14980 * @phba: Pointer to HBA context object.
14981 * @cmd_iocbq: pointer to the command iocbq structure.
14982 * @rsp_iocbq: pointer to the response iocbq structure.
14984 * This function handles the sequence abort response iocb command complete
14985 * event. It properly releases the memory allocated to the sequence abort
14989 lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba *phba,
14990 struct lpfc_iocbq *cmd_iocbq,
14991 struct lpfc_iocbq *rsp_iocbq)
14993 struct lpfc_nodelist *ndlp;
14996 ndlp = (struct lpfc_nodelist *)cmd_iocbq->context1;
14997 lpfc_nlp_put(ndlp);
14998 lpfc_nlp_not_used(ndlp);
14999 lpfc_sli_release_iocbq(phba, cmd_iocbq);
15002 /* Failure means BLS ABORT RSP did not get delivered to remote node*/
15003 if (rsp_iocbq && rsp_iocbq->iocb.ulpStatus)
15004 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15005 "3154 BLS ABORT RSP failed, data: x%x/x%x\n",
15006 rsp_iocbq->iocb.ulpStatus,
15007 rsp_iocbq->iocb.un.ulpWord[4]);
15011 * lpfc_sli4_xri_inrange - check xri is in range of xris owned by driver.
15012 * @phba: Pointer to HBA context object.
15013 * @xri: xri id in transaction.
15015 * This function validates the xri maps to the known range of XRIs allocated an
15016 * used by the driver.
15019 lpfc_sli4_xri_inrange(struct lpfc_hba *phba,
15024 for (i = 0; i < phba->sli4_hba.max_cfg_param.max_xri; i++) {
15025 if (xri == phba->sli4_hba.xri_ids[i])
15032 * lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort
15033 * @phba: Pointer to HBA context object.
15034 * @fc_hdr: pointer to a FC frame header.
15036 * This function sends a basic response to a previous unsol sequence abort
15037 * event after aborting the sequence handling.
15040 lpfc_sli4_seq_abort_rsp(struct lpfc_vport *vport,
15041 struct fc_frame_header *fc_hdr, bool aborted)
15043 struct lpfc_hba *phba = vport->phba;
15044 struct lpfc_iocbq *ctiocb = NULL;
15045 struct lpfc_nodelist *ndlp;
15046 uint16_t oxid, rxid, xri, lxri;
15047 uint32_t sid, fctl;
15051 if (!lpfc_is_link_up(phba))
15054 sid = sli4_sid_from_fc_hdr(fc_hdr);
15055 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
15056 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
15058 ndlp = lpfc_findnode_did(vport, sid);
15060 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
15062 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
15063 "1268 Failed to allocate ndlp for "
15064 "oxid:x%x SID:x%x\n", oxid, sid);
15067 lpfc_nlp_init(vport, ndlp, sid);
15068 /* Put ndlp onto pport node list */
15069 lpfc_enqueue_node(vport, ndlp);
15070 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
15071 /* re-setup ndlp without removing from node list */
15072 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
15074 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
15075 "3275 Failed to active ndlp found "
15076 "for oxid:x%x SID:x%x\n", oxid, sid);
15081 /* Allocate buffer for rsp iocb */
15082 ctiocb = lpfc_sli_get_iocbq(phba);
15086 /* Extract the F_CTL field from FC_HDR */
15087 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
15089 icmd = &ctiocb->iocb;
15090 icmd->un.xseq64.bdl.bdeSize = 0;
15091 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
15092 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
15093 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
15094 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
15096 /* Fill in the rest of iocb fields */
15097 icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
15098 icmd->ulpBdeCount = 0;
15100 icmd->ulpClass = CLASS3;
15101 icmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
15102 ctiocb->context1 = lpfc_nlp_get(ndlp);
15104 ctiocb->iocb_cmpl = NULL;
15105 ctiocb->vport = phba->pport;
15106 ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_rsp_cmpl;
15107 ctiocb->sli4_lxritag = NO_XRI;
15108 ctiocb->sli4_xritag = NO_XRI;
15110 if (fctl & FC_FC_EX_CTX)
15111 /* Exchange responder sent the abort so we
15117 lxri = lpfc_sli4_xri_inrange(phba, xri);
15118 if (lxri != NO_XRI)
15119 lpfc_set_rrq_active(phba, ndlp, lxri,
15120 (xri == oxid) ? rxid : oxid, 0);
15121 /* For BA_ABTS from exchange responder, if the logical xri with
15122 * the oxid maps to the FCP XRI range, the port no longer has
15123 * that exchange context, send a BLS_RJT. Override the IOCB for
15126 if ((fctl & FC_FC_EX_CTX) &&
15127 (lxri > lpfc_sli4_get_els_iocb_cnt(phba))) {
15128 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
15129 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
15130 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
15131 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
15134 /* If BA_ABTS failed to abort a partially assembled receive sequence,
15135 * the driver no longer has that exchange, send a BLS_RJT. Override
15136 * the IOCB for a BA_RJT.
15138 if (aborted == false) {
15139 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
15140 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
15141 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
15142 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
15145 if (fctl & FC_FC_EX_CTX) {
15146 /* ABTS sent by responder to CT exchange, construction
15147 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
15148 * field and RX_ID from ABTS for RX_ID field.
15150 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_RSP);
15152 /* ABTS sent by initiator to CT exchange, construction
15153 * of BA_ACC will need to allocate a new XRI as for the
15156 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_INT);
15158 bf_set(lpfc_abts_rxid, &icmd->un.bls_rsp, rxid);
15159 bf_set(lpfc_abts_oxid, &icmd->un.bls_rsp, oxid);
15161 /* Xmit CT abts response on exchange <xid> */
15162 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
15163 "1200 Send BLS cmd x%x on oxid x%x Data: x%x\n",
15164 icmd->un.xseq64.w5.hcsw.Rctl, oxid, phba->link_state);
15166 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
15167 if (rc == IOCB_ERROR) {
15168 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
15169 "2925 Failed to issue CT ABTS RSP x%x on "
15170 "xri x%x, Data x%x\n",
15171 icmd->un.xseq64.w5.hcsw.Rctl, oxid,
15173 lpfc_nlp_put(ndlp);
15174 ctiocb->context1 = NULL;
15175 lpfc_sli_release_iocbq(phba, ctiocb);
15180 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
15181 * @vport: Pointer to the vport on which this sequence was received
15182 * @dmabuf: pointer to a dmabuf that describes the FC sequence
15184 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
15185 * receive sequence is only partially assembed by the driver, it shall abort
15186 * the partially assembled frames for the sequence. Otherwise, if the
15187 * unsolicited receive sequence has been completely assembled and passed to
15188 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
15189 * unsolicited sequence has been aborted. After that, it will issue a basic
15190 * accept to accept the abort.
15193 lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
15194 struct hbq_dmabuf *dmabuf)
15196 struct lpfc_hba *phba = vport->phba;
15197 struct fc_frame_header fc_hdr;
15201 /* Make a copy of fc_hdr before the dmabuf being released */
15202 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
15203 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
15205 if (fctl & FC_FC_EX_CTX) {
15206 /* ABTS by responder to exchange, no cleanup needed */
15209 /* ABTS by initiator to exchange, need to do cleanup */
15210 aborted = lpfc_sli4_abort_partial_seq(vport, dmabuf);
15211 if (aborted == false)
15212 aborted = lpfc_sli4_abort_ulp_seq(vport, dmabuf);
15214 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15216 /* Respond with BA_ACC or BA_RJT accordingly */
15217 lpfc_sli4_seq_abort_rsp(vport, &fc_hdr, aborted);
15221 * lpfc_seq_complete - Indicates if a sequence is complete
15222 * @dmabuf: pointer to a dmabuf that describes the FC sequence
15224 * This function checks the sequence, starting with the frame described by
15225 * @dmabuf, to see if all the frames associated with this sequence are present.
15226 * the frames associated with this sequence are linked to the @dmabuf using the
15227 * dbuf list. This function looks for two major things. 1) That the first frame
15228 * has a sequence count of zero. 2) There is a frame with last frame of sequence
15229 * set. 3) That there are no holes in the sequence count. The function will
15230 * return 1 when the sequence is complete, otherwise it will return 0.
15233 lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
15235 struct fc_frame_header *hdr;
15236 struct lpfc_dmabuf *d_buf;
15237 struct hbq_dmabuf *seq_dmabuf;
15241 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
15242 /* make sure first fame of sequence has a sequence count of zero */
15243 if (hdr->fh_seq_cnt != seq_count)
15245 fctl = (hdr->fh_f_ctl[0] << 16 |
15246 hdr->fh_f_ctl[1] << 8 |
15248 /* If last frame of sequence we can return success. */
15249 if (fctl & FC_FC_END_SEQ)
15251 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
15252 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
15253 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
15254 /* If there is a hole in the sequence count then fail. */
15255 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
15257 fctl = (hdr->fh_f_ctl[0] << 16 |
15258 hdr->fh_f_ctl[1] << 8 |
15260 /* If last frame of sequence we can return success. */
15261 if (fctl & FC_FC_END_SEQ)
15268 * lpfc_prep_seq - Prep sequence for ULP processing
15269 * @vport: Pointer to the vport on which this sequence was received
15270 * @dmabuf: pointer to a dmabuf that describes the FC sequence
15272 * This function takes a sequence, described by a list of frames, and creates
15273 * a list of iocbq structures to describe the sequence. This iocbq list will be
15274 * used to issue to the generic unsolicited sequence handler. This routine
15275 * returns a pointer to the first iocbq in the list. If the function is unable
15276 * to allocate an iocbq then it throw out the received frames that were not
15277 * able to be described and return a pointer to the first iocbq. If unable to
15278 * allocate any iocbqs (including the first) this function will return NULL.
15280 static struct lpfc_iocbq *
15281 lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
15283 struct hbq_dmabuf *hbq_buf;
15284 struct lpfc_dmabuf *d_buf, *n_buf;
15285 struct lpfc_iocbq *first_iocbq, *iocbq;
15286 struct fc_frame_header *fc_hdr;
15288 uint32_t len, tot_len;
15289 struct ulp_bde64 *pbde;
15291 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
15292 /* remove from receive buffer list */
15293 list_del_init(&seq_dmabuf->hbuf.list);
15294 lpfc_update_rcv_time_stamp(vport);
15295 /* get the Remote Port's SID */
15296 sid = sli4_sid_from_fc_hdr(fc_hdr);
15298 /* Get an iocbq struct to fill in. */
15299 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
15301 /* Initialize the first IOCB. */
15302 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
15303 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
15305 /* Check FC Header to see what TYPE of frame we are rcv'ing */
15306 if (sli4_type_from_fc_hdr(fc_hdr) == FC_TYPE_ELS) {
15307 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_ELS64_CX;
15308 first_iocbq->iocb.un.rcvels.parmRo =
15309 sli4_did_from_fc_hdr(fc_hdr);
15310 first_iocbq->iocb.ulpPU = PARM_NPIV_DID;
15312 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
15313 first_iocbq->iocb.ulpContext = NO_XRI;
15314 first_iocbq->iocb.unsli3.rcvsli3.ox_id =
15315 be16_to_cpu(fc_hdr->fh_ox_id);
15316 /* iocbq is prepped for internal consumption. Physical vpi. */
15317 first_iocbq->iocb.unsli3.rcvsli3.vpi =
15318 vport->phba->vpi_ids[vport->vpi];
15319 /* put the first buffer into the first IOCBq */
15320 tot_len = bf_get(lpfc_rcqe_length,
15321 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
15323 first_iocbq->context2 = &seq_dmabuf->dbuf;
15324 first_iocbq->context3 = NULL;
15325 first_iocbq->iocb.ulpBdeCount = 1;
15326 if (tot_len > LPFC_DATA_BUF_SIZE)
15327 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
15328 LPFC_DATA_BUF_SIZE;
15330 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize = tot_len;
15332 first_iocbq->iocb.un.rcvels.remoteID = sid;
15334 first_iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
15336 iocbq = first_iocbq;
15338 * Each IOCBq can have two Buffers assigned, so go through the list
15339 * of buffers for this sequence and save two buffers in each IOCBq
15341 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
15343 lpfc_in_buf_free(vport->phba, d_buf);
15346 if (!iocbq->context3) {
15347 iocbq->context3 = d_buf;
15348 iocbq->iocb.ulpBdeCount++;
15349 /* We need to get the size out of the right CQE */
15350 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
15351 len = bf_get(lpfc_rcqe_length,
15352 &hbq_buf->cq_event.cqe.rcqe_cmpl);
15353 pbde = (struct ulp_bde64 *)
15354 &iocbq->iocb.unsli3.sli3Words[4];
15355 if (len > LPFC_DATA_BUF_SIZE)
15356 pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
15358 pbde->tus.f.bdeSize = len;
15360 iocbq->iocb.unsli3.rcvsli3.acc_len += len;
15363 iocbq = lpfc_sli_get_iocbq(vport->phba);
15366 first_iocbq->iocb.ulpStatus =
15367 IOSTAT_FCP_RSP_ERROR;
15368 first_iocbq->iocb.un.ulpWord[4] =
15369 IOERR_NO_RESOURCES;
15371 lpfc_in_buf_free(vport->phba, d_buf);
15374 /* We need to get the size out of the right CQE */
15375 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
15376 len = bf_get(lpfc_rcqe_length,
15377 &hbq_buf->cq_event.cqe.rcqe_cmpl);
15378 iocbq->context2 = d_buf;
15379 iocbq->context3 = NULL;
15380 iocbq->iocb.ulpBdeCount = 1;
15381 if (len > LPFC_DATA_BUF_SIZE)
15382 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
15383 LPFC_DATA_BUF_SIZE;
15385 iocbq->iocb.un.cont64[0].tus.f.bdeSize = len;
15388 iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
15390 iocbq->iocb.un.rcvels.remoteID = sid;
15391 list_add_tail(&iocbq->list, &first_iocbq->list);
15394 return first_iocbq;
15398 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
15399 struct hbq_dmabuf *seq_dmabuf)
15401 struct fc_frame_header *fc_hdr;
15402 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
15403 struct lpfc_hba *phba = vport->phba;
15405 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
15406 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
15408 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15409 "2707 Ring %d handler: Failed to allocate "
15410 "iocb Rctl x%x Type x%x received\n",
15412 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
15415 if (!lpfc_complete_unsol_iocb(phba,
15416 &phba->sli.ring[LPFC_ELS_RING],
15417 iocbq, fc_hdr->fh_r_ctl,
15419 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15420 "2540 Ring %d handler: unexpected Rctl "
15421 "x%x Type x%x received\n",
15423 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
15425 /* Free iocb created in lpfc_prep_seq */
15426 list_for_each_entry_safe(curr_iocb, next_iocb,
15427 &iocbq->list, list) {
15428 list_del_init(&curr_iocb->list);
15429 lpfc_sli_release_iocbq(phba, curr_iocb);
15431 lpfc_sli_release_iocbq(phba, iocbq);
15435 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
15436 * @phba: Pointer to HBA context object.
15438 * This function is called with no lock held. This function processes all
15439 * the received buffers and gives it to upper layers when a received buffer
15440 * indicates that it is the final frame in the sequence. The interrupt
15441 * service routine processes received buffers at interrupt contexts and adds
15442 * received dma buffers to the rb_pend_list queue and signals the worker thread.
15443 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
15444 * appropriate receive function when the final frame in a sequence is received.
15447 lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
15448 struct hbq_dmabuf *dmabuf)
15450 struct hbq_dmabuf *seq_dmabuf;
15451 struct fc_frame_header *fc_hdr;
15452 struct lpfc_vport *vport;
15456 /* Process each received buffer */
15457 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
15458 /* check to see if this a valid type of frame */
15459 if (lpfc_fc_frame_check(phba, fc_hdr)) {
15460 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15463 if ((bf_get(lpfc_cqe_code,
15464 &dmabuf->cq_event.cqe.rcqe_cmpl) == CQE_CODE_RECEIVE_V1))
15465 fcfi = bf_get(lpfc_rcqe_fcf_id_v1,
15466 &dmabuf->cq_event.cqe.rcqe_cmpl);
15468 fcfi = bf_get(lpfc_rcqe_fcf_id,
15469 &dmabuf->cq_event.cqe.rcqe_cmpl);
15471 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi);
15473 /* throw out the frame */
15474 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15478 /* d_id this frame is directed to */
15479 did = sli4_did_from_fc_hdr(fc_hdr);
15481 /* vport is registered unless we rcv a FLOGI directed to Fabric_DID */
15482 if (!(vport->vpi_state & LPFC_VPI_REGISTERED) &&
15483 (did != Fabric_DID)) {
15485 * Throw out the frame if we are not pt2pt.
15486 * The pt2pt protocol allows for discovery frames
15487 * to be received without a registered VPI.
15489 if (!(vport->fc_flag & FC_PT2PT) ||
15490 (phba->link_state == LPFC_HBA_READY)) {
15491 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15496 /* Handle the basic abort sequence (BA_ABTS) event */
15497 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
15498 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
15502 /* Link this frame */
15503 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
15505 /* unable to add frame to vport - throw it out */
15506 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15509 /* If not last frame in sequence continue processing frames. */
15510 if (!lpfc_seq_complete(seq_dmabuf))
15513 /* Send the complete sequence to the upper layer protocol */
15514 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
15518 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
15519 * @phba: pointer to lpfc hba data structure.
15521 * This routine is invoked to post rpi header templates to the
15522 * HBA consistent with the SLI-4 interface spec. This routine
15523 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
15524 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
15526 * This routine does not require any locks. It's usage is expected
15527 * to be driver load or reset recovery when the driver is
15532 * -EIO - The mailbox failed to complete successfully.
15533 * When this error occurs, the driver is not guaranteed
15534 * to have any rpi regions posted to the device and
15535 * must either attempt to repost the regions or take a
15539 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
15541 struct lpfc_rpi_hdr *rpi_page;
15545 /* SLI4 ports that support extents do not require RPI headers. */
15546 if (!phba->sli4_hba.rpi_hdrs_in_use)
15548 if (phba->sli4_hba.extents_in_use)
15551 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
15553 * Assign the rpi headers a physical rpi only if the driver
15554 * has not initialized those resources. A port reset only
15555 * needs the headers posted.
15557 if (bf_get(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags) !=
15559 rpi_page->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
15561 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
15562 if (rc != MBX_SUCCESS) {
15563 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15564 "2008 Error %d posting all rpi "
15572 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags,
15573 LPFC_RPI_RSRC_RDY);
15578 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
15579 * @phba: pointer to lpfc hba data structure.
15580 * @rpi_page: pointer to the rpi memory region.
15582 * This routine is invoked to post a single rpi header to the
15583 * HBA consistent with the SLI-4 interface spec. This memory region
15584 * maps up to 64 rpi context regions.
15588 * -ENOMEM - No available memory
15589 * -EIO - The mailbox failed to complete successfully.
15592 lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
15594 LPFC_MBOXQ_t *mboxq;
15595 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
15597 uint32_t shdr_status, shdr_add_status;
15598 union lpfc_sli4_cfg_shdr *shdr;
15600 /* SLI4 ports that support extents do not require RPI headers. */
15601 if (!phba->sli4_hba.rpi_hdrs_in_use)
15603 if (phba->sli4_hba.extents_in_use)
15606 /* The port is notified of the header region via a mailbox command. */
15607 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15609 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15610 "2001 Unable to allocate memory for issuing "
15611 "SLI_CONFIG_SPECIAL mailbox command\n");
15615 /* Post all rpi memory regions to the port. */
15616 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
15617 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
15618 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
15619 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
15620 sizeof(struct lpfc_sli4_cfg_mhdr),
15621 LPFC_SLI4_MBX_EMBED);
15624 /* Post the physical rpi to the port for this rpi header. */
15625 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
15626 rpi_page->start_rpi);
15627 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
15628 hdr_tmpl, rpi_page->page_count);
15630 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
15631 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
15632 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
15633 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
15634 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15635 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15636 if (rc != MBX_TIMEOUT)
15637 mempool_free(mboxq, phba->mbox_mem_pool);
15638 if (shdr_status || shdr_add_status || rc) {
15639 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15640 "2514 POST_RPI_HDR mailbox failed with "
15641 "status x%x add_status x%x, mbx status x%x\n",
15642 shdr_status, shdr_add_status, rc);
15649 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
15650 * @phba: pointer to lpfc hba data structure.
15652 * This routine is invoked to post rpi header templates to the
15653 * HBA consistent with the SLI-4 interface spec. This routine
15654 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
15655 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
15658 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
15659 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
15662 lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
15665 uint16_t max_rpi, rpi_limit;
15666 uint16_t rpi_remaining, lrpi = 0;
15667 struct lpfc_rpi_hdr *rpi_hdr;
15668 unsigned long iflag;
15670 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
15671 rpi_limit = phba->sli4_hba.next_rpi;
15674 * Fetch the next logical rpi. Because this index is logical,
15675 * the driver starts at 0 each time.
15677 spin_lock_irqsave(&phba->hbalock, iflag);
15678 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, 0);
15679 if (rpi >= rpi_limit)
15680 rpi = LPFC_RPI_ALLOC_ERROR;
15682 set_bit(rpi, phba->sli4_hba.rpi_bmask);
15683 phba->sli4_hba.max_cfg_param.rpi_used++;
15684 phba->sli4_hba.rpi_count++;
15688 * Don't try to allocate more rpi header regions if the device limit
15689 * has been exhausted.
15691 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
15692 (phba->sli4_hba.rpi_count >= max_rpi)) {
15693 spin_unlock_irqrestore(&phba->hbalock, iflag);
15698 * RPI header postings are not required for SLI4 ports capable of
15701 if (!phba->sli4_hba.rpi_hdrs_in_use) {
15702 spin_unlock_irqrestore(&phba->hbalock, iflag);
15707 * If the driver is running low on rpi resources, allocate another
15708 * page now. Note that the next_rpi value is used because
15709 * it represents how many are actually in use whereas max_rpi notes
15710 * how many are supported max by the device.
15712 rpi_remaining = phba->sli4_hba.next_rpi - phba->sli4_hba.rpi_count;
15713 spin_unlock_irqrestore(&phba->hbalock, iflag);
15714 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
15715 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
15717 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15718 "2002 Error Could not grow rpi "
15721 lrpi = rpi_hdr->start_rpi;
15722 rpi_hdr->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
15723 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
15731 * lpfc_sli4_free_rpi - Release an rpi for reuse.
15732 * @phba: pointer to lpfc hba data structure.
15734 * This routine is invoked to release an rpi to the pool of
15735 * available rpis maintained by the driver.
15738 __lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
15740 if (test_and_clear_bit(rpi, phba->sli4_hba.rpi_bmask)) {
15741 phba->sli4_hba.rpi_count--;
15742 phba->sli4_hba.max_cfg_param.rpi_used--;
15747 * lpfc_sli4_free_rpi - Release an rpi for reuse.
15748 * @phba: pointer to lpfc hba data structure.
15750 * This routine is invoked to release an rpi to the pool of
15751 * available rpis maintained by the driver.
15754 lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
15756 spin_lock_irq(&phba->hbalock);
15757 __lpfc_sli4_free_rpi(phba, rpi);
15758 spin_unlock_irq(&phba->hbalock);
15762 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
15763 * @phba: pointer to lpfc hba data structure.
15765 * This routine is invoked to remove the memory region that
15766 * provided rpi via a bitmask.
15769 lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
15771 kfree(phba->sli4_hba.rpi_bmask);
15772 kfree(phba->sli4_hba.rpi_ids);
15773 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
15777 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
15778 * @phba: pointer to lpfc hba data structure.
15780 * This routine is invoked to remove the memory region that
15781 * provided rpi via a bitmask.
15784 lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp,
15785 void (*cmpl)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *arg)
15787 LPFC_MBOXQ_t *mboxq;
15788 struct lpfc_hba *phba = ndlp->phba;
15791 /* The port is notified of the header region via a mailbox command. */
15792 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15796 /* Post all rpi memory regions to the port. */
15797 lpfc_resume_rpi(mboxq, ndlp);
15799 mboxq->mbox_cmpl = cmpl;
15800 mboxq->context1 = arg;
15801 mboxq->context2 = ndlp;
15803 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15804 mboxq->vport = ndlp->vport;
15805 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15806 if (rc == MBX_NOT_FINISHED) {
15807 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15808 "2010 Resume RPI Mailbox failed "
15809 "status %d, mbxStatus x%x\n", rc,
15810 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
15811 mempool_free(mboxq, phba->mbox_mem_pool);
15818 * lpfc_sli4_init_vpi - Initialize a vpi with the port
15819 * @vport: Pointer to the vport for which the vpi is being initialized
15821 * This routine is invoked to activate a vpi with the port.
15825 * -Evalue otherwise
15828 lpfc_sli4_init_vpi(struct lpfc_vport *vport)
15830 LPFC_MBOXQ_t *mboxq;
15832 int retval = MBX_SUCCESS;
15834 struct lpfc_hba *phba = vport->phba;
15835 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15838 lpfc_init_vpi(phba, mboxq, vport->vpi);
15839 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
15840 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
15841 if (rc != MBX_SUCCESS) {
15842 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
15843 "2022 INIT VPI Mailbox failed "
15844 "status %d, mbxStatus x%x\n", rc,
15845 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
15848 if (rc != MBX_TIMEOUT)
15849 mempool_free(mboxq, vport->phba->mbox_mem_pool);
15855 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
15856 * @phba: pointer to lpfc hba data structure.
15857 * @mboxq: Pointer to mailbox object.
15859 * This routine is invoked to manually add a single FCF record. The caller
15860 * must pass a completely initialized FCF_Record. This routine takes
15861 * care of the nonembedded mailbox operations.
15864 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
15867 union lpfc_sli4_cfg_shdr *shdr;
15868 uint32_t shdr_status, shdr_add_status;
15870 virt_addr = mboxq->sge_array->addr[0];
15871 /* The IOCTL status is embedded in the mailbox subheader. */
15872 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
15873 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15874 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15876 if ((shdr_status || shdr_add_status) &&
15877 (shdr_status != STATUS_FCF_IN_USE))
15878 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15879 "2558 ADD_FCF_RECORD mailbox failed with "
15880 "status x%x add_status x%x\n",
15881 shdr_status, shdr_add_status);
15883 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15887 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
15888 * @phba: pointer to lpfc hba data structure.
15889 * @fcf_record: pointer to the initialized fcf record to add.
15891 * This routine is invoked to manually add a single FCF record. The caller
15892 * must pass a completely initialized FCF_Record. This routine takes
15893 * care of the nonembedded mailbox operations.
15896 lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
15899 LPFC_MBOXQ_t *mboxq;
15902 dma_addr_t phys_addr;
15903 struct lpfc_mbx_sge sge;
15904 uint32_t alloc_len, req_len;
15907 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15909 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15910 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
15914 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
15917 /* Allocate DMA memory and set up the non-embedded mailbox command */
15918 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
15919 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
15920 req_len, LPFC_SLI4_MBX_NEMBED);
15921 if (alloc_len < req_len) {
15922 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15923 "2523 Allocated DMA memory size (x%x) is "
15924 "less than the requested DMA memory "
15925 "size (x%x)\n", alloc_len, req_len);
15926 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15931 * Get the first SGE entry from the non-embedded DMA memory. This
15932 * routine only uses a single SGE.
15934 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
15935 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
15936 virt_addr = mboxq->sge_array->addr[0];
15938 * Configure the FCF record for FCFI 0. This is the driver's
15939 * hardcoded default and gets used in nonFIP mode.
15941 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
15942 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
15943 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
15946 * Copy the fcf_index and the FCF Record Data. The data starts after
15947 * the FCoE header plus word10. The data copy needs to be endian
15950 bytep += sizeof(uint32_t);
15951 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
15952 mboxq->vport = phba->pport;
15953 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
15954 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15955 if (rc == MBX_NOT_FINISHED) {
15956 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15957 "2515 ADD_FCF_RECORD mailbox failed with "
15958 "status 0x%x\n", rc);
15959 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15968 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
15969 * @phba: pointer to lpfc hba data structure.
15970 * @fcf_record: pointer to the fcf record to write the default data.
15971 * @fcf_index: FCF table entry index.
15973 * This routine is invoked to build the driver's default FCF record. The
15974 * values used are hardcoded. This routine handles memory initialization.
15978 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
15979 struct fcf_record *fcf_record,
15980 uint16_t fcf_index)
15982 memset(fcf_record, 0, sizeof(struct fcf_record));
15983 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
15984 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
15985 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
15986 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
15987 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
15988 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
15989 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
15990 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
15991 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
15992 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
15993 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
15994 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
15995 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
15996 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
15997 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
15998 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
15999 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
16000 /* Set the VLAN bit map */
16001 if (phba->valid_vlan) {
16002 fcf_record->vlan_bitmap[phba->vlan_id / 8]
16003 = 1 << (phba->vlan_id % 8);
16008 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
16009 * @phba: pointer to lpfc hba data structure.
16010 * @fcf_index: FCF table entry offset.
16012 * This routine is invoked to scan the entire FCF table by reading FCF
16013 * record and processing it one at a time starting from the @fcf_index
16014 * for initial FCF discovery or fast FCF failover rediscovery.
16016 * Return 0 if the mailbox command is submitted successfully, none 0
16020 lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
16023 LPFC_MBOXQ_t *mboxq;
16025 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
16026 phba->fcoe_cvl_eventtag_attn = phba->fcoe_cvl_eventtag;
16027 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16029 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16030 "2000 Failed to allocate mbox for "
16033 goto fail_fcf_scan;
16035 /* Construct the read FCF record mailbox command */
16036 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
16039 goto fail_fcf_scan;
16041 /* Issue the mailbox command asynchronously */
16042 mboxq->vport = phba->pport;
16043 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
16045 spin_lock_irq(&phba->hbalock);
16046 phba->hba_flag |= FCF_TS_INPROG;
16047 spin_unlock_irq(&phba->hbalock);
16049 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
16050 if (rc == MBX_NOT_FINISHED)
16053 /* Reset eligible FCF count for new scan */
16054 if (fcf_index == LPFC_FCOE_FCF_GET_FIRST)
16055 phba->fcf.eligible_fcf_cnt = 0;
16061 lpfc_sli4_mbox_cmd_free(phba, mboxq);
16062 /* FCF scan failed, clear FCF_TS_INPROG flag */
16063 spin_lock_irq(&phba->hbalock);
16064 phba->hba_flag &= ~FCF_TS_INPROG;
16065 spin_unlock_irq(&phba->hbalock);
16071 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
16072 * @phba: pointer to lpfc hba data structure.
16073 * @fcf_index: FCF table entry offset.
16075 * This routine is invoked to read an FCF record indicated by @fcf_index
16076 * and to use it for FLOGI roundrobin FCF failover.
16078 * Return 0 if the mailbox command is submitted successfully, none 0
16082 lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
16085 LPFC_MBOXQ_t *mboxq;
16087 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16089 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
16090 "2763 Failed to allocate mbox for "
16093 goto fail_fcf_read;
16095 /* Construct the read FCF record mailbox command */
16096 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
16099 goto fail_fcf_read;
16101 /* Issue the mailbox command asynchronously */
16102 mboxq->vport = phba->pport;
16103 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
16104 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
16105 if (rc == MBX_NOT_FINISHED)
16111 if (error && mboxq)
16112 lpfc_sli4_mbox_cmd_free(phba, mboxq);
16117 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
16118 * @phba: pointer to lpfc hba data structure.
16119 * @fcf_index: FCF table entry offset.
16121 * This routine is invoked to read an FCF record indicated by @fcf_index to
16122 * determine whether it's eligible for FLOGI roundrobin failover list.
16124 * Return 0 if the mailbox command is submitted successfully, none 0
16128 lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
16131 LPFC_MBOXQ_t *mboxq;
16133 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16135 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
16136 "2758 Failed to allocate mbox for "
16139 goto fail_fcf_read;
16141 /* Construct the read FCF record mailbox command */
16142 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
16145 goto fail_fcf_read;
16147 /* Issue the mailbox command asynchronously */
16148 mboxq->vport = phba->pport;
16149 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
16150 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
16151 if (rc == MBX_NOT_FINISHED)
16157 if (error && mboxq)
16158 lpfc_sli4_mbox_cmd_free(phba, mboxq);
16163 * lpfc_check_next_fcf_pri
16164 * phba pointer to the lpfc_hba struct for this port.
16165 * This routine is called from the lpfc_sli4_fcf_rr_next_index_get
16166 * routine when the rr_bmask is empty. The FCF indecies are put into the
16167 * rr_bmask based on their priority level. Starting from the highest priority
16168 * to the lowest. The most likely FCF candidate will be in the highest
16169 * priority group. When this routine is called it searches the fcf_pri list for
16170 * next lowest priority group and repopulates the rr_bmask with only those
16173 * 1=success 0=failure
16176 lpfc_check_next_fcf_pri_level(struct lpfc_hba *phba)
16178 uint16_t next_fcf_pri;
16179 uint16_t last_index;
16180 struct lpfc_fcf_pri *fcf_pri;
16184 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
16185 LPFC_SLI4_FCF_TBL_INDX_MAX);
16186 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
16187 "3060 Last IDX %d\n", last_index);
16189 /* Verify the priority list has 2 or more entries */
16190 spin_lock_irq(&phba->hbalock);
16191 if (list_empty(&phba->fcf.fcf_pri_list) ||
16192 list_is_singular(&phba->fcf.fcf_pri_list)) {
16193 spin_unlock_irq(&phba->hbalock);
16194 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
16195 "3061 Last IDX %d\n", last_index);
16196 return 0; /* Empty rr list */
16198 spin_unlock_irq(&phba->hbalock);
16202 * Clear the rr_bmask and set all of the bits that are at this
16205 memset(phba->fcf.fcf_rr_bmask, 0,
16206 sizeof(*phba->fcf.fcf_rr_bmask));
16207 spin_lock_irq(&phba->hbalock);
16208 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
16209 if (fcf_pri->fcf_rec.flag & LPFC_FCF_FLOGI_FAILED)
16212 * the 1st priority that has not FLOGI failed
16213 * will be the highest.
16216 next_fcf_pri = fcf_pri->fcf_rec.priority;
16217 spin_unlock_irq(&phba->hbalock);
16218 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
16219 rc = lpfc_sli4_fcf_rr_index_set(phba,
16220 fcf_pri->fcf_rec.fcf_index);
16224 spin_lock_irq(&phba->hbalock);
16227 * if next_fcf_pri was not set above and the list is not empty then
16228 * we have failed flogis on all of them. So reset flogi failed
16229 * and start at the beginning.
16231 if (!next_fcf_pri && !list_empty(&phba->fcf.fcf_pri_list)) {
16232 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
16233 fcf_pri->fcf_rec.flag &= ~LPFC_FCF_FLOGI_FAILED;
16235 * the 1st priority that has not FLOGI failed
16236 * will be the highest.
16239 next_fcf_pri = fcf_pri->fcf_rec.priority;
16240 spin_unlock_irq(&phba->hbalock);
16241 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
16242 rc = lpfc_sli4_fcf_rr_index_set(phba,
16243 fcf_pri->fcf_rec.fcf_index);
16247 spin_lock_irq(&phba->hbalock);
16251 spin_unlock_irq(&phba->hbalock);
16256 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
16257 * @phba: pointer to lpfc hba data structure.
16259 * This routine is to get the next eligible FCF record index in a round
16260 * robin fashion. If the next eligible FCF record index equals to the
16261 * initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
16262 * shall be returned, otherwise, the next eligible FCF record's index
16263 * shall be returned.
16266 lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
16268 uint16_t next_fcf_index;
16271 /* Search start from next bit of currently registered FCF index */
16272 next_fcf_index = phba->fcf.current_rec.fcf_indx;
16275 /* Determine the next fcf index to check */
16276 next_fcf_index = (next_fcf_index + 1) % LPFC_SLI4_FCF_TBL_INDX_MAX;
16277 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
16278 LPFC_SLI4_FCF_TBL_INDX_MAX,
16281 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
16282 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
16284 * If we have wrapped then we need to clear the bits that
16285 * have been tested so that we can detect when we should
16286 * change the priority level.
16288 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
16289 LPFC_SLI4_FCF_TBL_INDX_MAX, 0);
16293 /* Check roundrobin failover list empty condition */
16294 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX ||
16295 next_fcf_index == phba->fcf.current_rec.fcf_indx) {
16297 * If next fcf index is not found check if there are lower
16298 * Priority level fcf's in the fcf_priority list.
16299 * Set up the rr_bmask with all of the avaiable fcf bits
16300 * at that level and continue the selection process.
16302 if (lpfc_check_next_fcf_pri_level(phba))
16303 goto initial_priority;
16304 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
16305 "2844 No roundrobin failover FCF available\n");
16306 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX)
16307 return LPFC_FCOE_FCF_NEXT_NONE;
16309 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
16310 "3063 Only FCF available idx %d, flag %x\n",
16312 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag);
16313 return next_fcf_index;
16317 if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX &&
16318 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag &
16319 LPFC_FCF_FLOGI_FAILED)
16320 goto next_priority;
16322 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
16323 "2845 Get next roundrobin failover FCF (x%x)\n",
16326 return next_fcf_index;
16330 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
16331 * @phba: pointer to lpfc hba data structure.
16333 * This routine sets the FCF record index in to the eligible bmask for
16334 * roundrobin failover search. It checks to make sure that the index
16335 * does not go beyond the range of the driver allocated bmask dimension
16336 * before setting the bit.
16338 * Returns 0 if the index bit successfully set, otherwise, it returns
16342 lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
16344 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
16345 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
16346 "2610 FCF (x%x) reached driver's book "
16347 "keeping dimension:x%x\n",
16348 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
16351 /* Set the eligible FCF record index bmask */
16352 set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
16354 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
16355 "2790 Set FCF (x%x) to roundrobin FCF failover "
16356 "bmask\n", fcf_index);
16362 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
16363 * @phba: pointer to lpfc hba data structure.
16365 * This routine clears the FCF record index from the eligible bmask for
16366 * roundrobin failover search. It checks to make sure that the index
16367 * does not go beyond the range of the driver allocated bmask dimension
16368 * before clearing the bit.
16371 lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
16373 struct lpfc_fcf_pri *fcf_pri, *fcf_pri_next;
16374 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
16375 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
16376 "2762 FCF (x%x) reached driver's book "
16377 "keeping dimension:x%x\n",
16378 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
16381 /* Clear the eligible FCF record index bmask */
16382 spin_lock_irq(&phba->hbalock);
16383 list_for_each_entry_safe(fcf_pri, fcf_pri_next, &phba->fcf.fcf_pri_list,
16385 if (fcf_pri->fcf_rec.fcf_index == fcf_index) {
16386 list_del_init(&fcf_pri->list);
16390 spin_unlock_irq(&phba->hbalock);
16391 clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
16393 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
16394 "2791 Clear FCF (x%x) from roundrobin failover "
16395 "bmask\n", fcf_index);
16399 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
16400 * @phba: pointer to lpfc hba data structure.
16402 * This routine is the completion routine for the rediscover FCF table mailbox
16403 * command. If the mailbox command returned failure, it will try to stop the
16404 * FCF rediscover wait timer.
16407 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
16409 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
16410 uint32_t shdr_status, shdr_add_status;
16412 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
16414 shdr_status = bf_get(lpfc_mbox_hdr_status,
16415 &redisc_fcf->header.cfg_shdr.response);
16416 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
16417 &redisc_fcf->header.cfg_shdr.response);
16418 if (shdr_status || shdr_add_status) {
16419 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
16420 "2746 Requesting for FCF rediscovery failed "
16421 "status x%x add_status x%x\n",
16422 shdr_status, shdr_add_status);
16423 if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
16424 spin_lock_irq(&phba->hbalock);
16425 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
16426 spin_unlock_irq(&phba->hbalock);
16428 * CVL event triggered FCF rediscover request failed,
16429 * last resort to re-try current registered FCF entry.
16431 lpfc_retry_pport_discovery(phba);
16433 spin_lock_irq(&phba->hbalock);
16434 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
16435 spin_unlock_irq(&phba->hbalock);
16437 * DEAD FCF event triggered FCF rediscover request
16438 * failed, last resort to fail over as a link down
16439 * to FCF registration.
16441 lpfc_sli4_fcf_dead_failthrough(phba);
16444 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
16445 "2775 Start FCF rediscover quiescent timer\n");
16447 * Start FCF rediscovery wait timer for pending FCF
16448 * before rescan FCF record table.
16450 lpfc_fcf_redisc_wait_start_timer(phba);
16453 mempool_free(mbox, phba->mbox_mem_pool);
16457 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
16458 * @phba: pointer to lpfc hba data structure.
16460 * This routine is invoked to request for rediscovery of the entire FCF table
16464 lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
16466 LPFC_MBOXQ_t *mbox;
16467 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
16470 /* Cancel retry delay timers to all vports before FCF rediscover */
16471 lpfc_cancel_all_vport_retry_delay_timer(phba);
16473 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16475 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16476 "2745 Failed to allocate mbox for "
16477 "requesting FCF rediscover.\n");
16481 length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
16482 sizeof(struct lpfc_sli4_cfg_mhdr));
16483 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16484 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
16485 length, LPFC_SLI4_MBX_EMBED);
16487 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
16488 /* Set count to 0 for invalidating the entire FCF database */
16489 bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
16491 /* Issue the mailbox command asynchronously */
16492 mbox->vport = phba->pport;
16493 mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
16494 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
16496 if (rc == MBX_NOT_FINISHED) {
16497 mempool_free(mbox, phba->mbox_mem_pool);
16504 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
16505 * @phba: pointer to lpfc hba data structure.
16507 * This function is the failover routine as a last resort to the FCF DEAD
16508 * event when driver failed to perform fast FCF failover.
16511 lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
16513 uint32_t link_state;
16516 * Last resort as FCF DEAD event failover will treat this as
16517 * a link down, but save the link state because we don't want
16518 * it to be changed to Link Down unless it is already down.
16520 link_state = phba->link_state;
16521 lpfc_linkdown(phba);
16522 phba->link_state = link_state;
16524 /* Unregister FCF if no devices connected to it */
16525 lpfc_unregister_unused_fcf(phba);
16529 * lpfc_sli_get_config_region23 - Get sli3 port region 23 data.
16530 * @phba: pointer to lpfc hba data structure.
16531 * @rgn23_data: pointer to configure region 23 data.
16533 * This function gets SLI3 port configure region 23 data through memory dump
16534 * mailbox command. When it successfully retrieves data, the size of the data
16535 * will be returned, otherwise, 0 will be returned.
16538 lpfc_sli_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
16540 LPFC_MBOXQ_t *pmb = NULL;
16542 uint32_t offset = 0;
16548 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16550 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16551 "2600 failed to allocate mailbox memory\n");
16557 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
16558 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
16560 if (rc != MBX_SUCCESS) {
16561 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
16562 "2601 failed to read config "
16563 "region 23, rc 0x%x Status 0x%x\n",
16564 rc, mb->mbxStatus);
16565 mb->un.varDmp.word_cnt = 0;
16568 * dump mem may return a zero when finished or we got a
16569 * mailbox error, either way we are done.
16571 if (mb->un.varDmp.word_cnt == 0)
16573 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
16574 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
16576 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
16577 rgn23_data + offset,
16578 mb->un.varDmp.word_cnt);
16579 offset += mb->un.varDmp.word_cnt;
16580 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
16582 mempool_free(pmb, phba->mbox_mem_pool);
16587 * lpfc_sli4_get_config_region23 - Get sli4 port region 23 data.
16588 * @phba: pointer to lpfc hba data structure.
16589 * @rgn23_data: pointer to configure region 23 data.
16591 * This function gets SLI4 port configure region 23 data through memory dump
16592 * mailbox command. When it successfully retrieves data, the size of the data
16593 * will be returned, otherwise, 0 will be returned.
16596 lpfc_sli4_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
16598 LPFC_MBOXQ_t *mboxq = NULL;
16599 struct lpfc_dmabuf *mp = NULL;
16600 struct lpfc_mqe *mqe;
16601 uint32_t data_length = 0;
16607 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16609 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16610 "3105 failed to allocate mailbox memory\n");
16614 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq))
16616 mqe = &mboxq->u.mqe;
16617 mp = (struct lpfc_dmabuf *) mboxq->context1;
16618 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
16621 data_length = mqe->un.mb_words[5];
16622 if (data_length == 0)
16624 if (data_length > DMP_RGN23_SIZE) {
16628 lpfc_sli_pcimem_bcopy((char *)mp->virt, rgn23_data, data_length);
16630 mempool_free(mboxq, phba->mbox_mem_pool);
16632 lpfc_mbuf_free(phba, mp->virt, mp->phys);
16635 return data_length;
16639 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
16640 * @phba: pointer to lpfc hba data structure.
16642 * This function read region 23 and parse TLV for port status to
16643 * decide if the user disaled the port. If the TLV indicates the
16644 * port is disabled, the hba_flag is set accordingly.
16647 lpfc_sli_read_link_ste(struct lpfc_hba *phba)
16649 uint8_t *rgn23_data = NULL;
16650 uint32_t if_type, data_size, sub_tlv_len, tlv_offset;
16651 uint32_t offset = 0;
16653 /* Get adapter Region 23 data */
16654 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
16658 if (phba->sli_rev < LPFC_SLI_REV4)
16659 data_size = lpfc_sli_get_config_region23(phba, rgn23_data);
16661 if_type = bf_get(lpfc_sli_intf_if_type,
16662 &phba->sli4_hba.sli_intf);
16663 if (if_type == LPFC_SLI_INTF_IF_TYPE_0)
16665 data_size = lpfc_sli4_get_config_region23(phba, rgn23_data);
16671 /* Check the region signature first */
16672 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
16673 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16674 "2619 Config region 23 has bad signature\n");
16679 /* Check the data structure version */
16680 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
16681 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16682 "2620 Config region 23 has bad version\n");
16687 /* Parse TLV entries in the region */
16688 while (offset < data_size) {
16689 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
16692 * If the TLV is not driver specific TLV or driver id is
16693 * not linux driver id, skip the record.
16695 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
16696 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
16697 (rgn23_data[offset + 3] != 0)) {
16698 offset += rgn23_data[offset + 1] * 4 + 4;
16702 /* Driver found a driver specific TLV in the config region */
16703 sub_tlv_len = rgn23_data[offset + 1] * 4;
16708 * Search for configured port state sub-TLV.
16710 while ((offset < data_size) &&
16711 (tlv_offset < sub_tlv_len)) {
16712 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
16717 if (rgn23_data[offset] != PORT_STE_TYPE) {
16718 offset += rgn23_data[offset + 1] * 4 + 4;
16719 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
16723 /* This HBA contains PORT_STE configured */
16724 if (!rgn23_data[offset + 2])
16725 phba->hba_flag |= LINK_DISABLED;
16737 * lpfc_wr_object - write an object to the firmware
16738 * @phba: HBA structure that indicates port to create a queue on.
16739 * @dmabuf_list: list of dmabufs to write to the port.
16740 * @size: the total byte value of the objects to write to the port.
16741 * @offset: the current offset to be used to start the transfer.
16743 * This routine will create a wr_object mailbox command to send to the port.
16744 * the mailbox command will be constructed using the dma buffers described in
16745 * @dmabuf_list to create a list of BDEs. This routine will fill in as many
16746 * BDEs that the imbedded mailbox can support. The @offset variable will be
16747 * used to indicate the starting offset of the transfer and will also return
16748 * the offset after the write object mailbox has completed. @size is used to
16749 * determine the end of the object and whether the eof bit should be set.
16751 * Return 0 is successful and offset will contain the the new offset to use
16752 * for the next write.
16753 * Return negative value for error cases.
16756 lpfc_wr_object(struct lpfc_hba *phba, struct list_head *dmabuf_list,
16757 uint32_t size, uint32_t *offset)
16759 struct lpfc_mbx_wr_object *wr_object;
16760 LPFC_MBOXQ_t *mbox;
16762 uint32_t shdr_status, shdr_add_status;
16764 union lpfc_sli4_cfg_shdr *shdr;
16765 struct lpfc_dmabuf *dmabuf;
16766 uint32_t written = 0;
16768 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16772 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16773 LPFC_MBOX_OPCODE_WRITE_OBJECT,
16774 sizeof(struct lpfc_mbx_wr_object) -
16775 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
16777 wr_object = (struct lpfc_mbx_wr_object *)&mbox->u.mqe.un.wr_object;
16778 wr_object->u.request.write_offset = *offset;
16779 sprintf((uint8_t *)wr_object->u.request.object_name, "/");
16780 wr_object->u.request.object_name[0] =
16781 cpu_to_le32(wr_object->u.request.object_name[0]);
16782 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 0);
16783 list_for_each_entry(dmabuf, dmabuf_list, list) {
16784 if (i >= LPFC_MBX_WR_CONFIG_MAX_BDE || written >= size)
16786 wr_object->u.request.bde[i].addrLow = putPaddrLow(dmabuf->phys);
16787 wr_object->u.request.bde[i].addrHigh =
16788 putPaddrHigh(dmabuf->phys);
16789 if (written + SLI4_PAGE_SIZE >= size) {
16790 wr_object->u.request.bde[i].tus.f.bdeSize =
16792 written += (size - written);
16793 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 1);
16795 wr_object->u.request.bde[i].tus.f.bdeSize =
16797 written += SLI4_PAGE_SIZE;
16801 wr_object->u.request.bde_count = i;
16802 bf_set(lpfc_wr_object_write_length, &wr_object->u.request, written);
16803 if (!phba->sli4_hba.intr_enable)
16804 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16806 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
16807 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16809 /* The IOCTL status is embedded in the mailbox subheader. */
16810 shdr = (union lpfc_sli4_cfg_shdr *) &wr_object->header.cfg_shdr;
16811 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16812 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16813 if (rc != MBX_TIMEOUT)
16814 mempool_free(mbox, phba->mbox_mem_pool);
16815 if (shdr_status || shdr_add_status || rc) {
16816 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16817 "3025 Write Object mailbox failed with "
16818 "status x%x add_status x%x, mbx status x%x\n",
16819 shdr_status, shdr_add_status, rc);
16822 *offset += wr_object->u.response.actual_write_length;
16827 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
16828 * @vport: pointer to vport data structure.
16830 * This function iterate through the mailboxq and clean up all REG_LOGIN
16831 * and REG_VPI mailbox commands associated with the vport. This function
16832 * is called when driver want to restart discovery of the vport due to
16833 * a Clear Virtual Link event.
16836 lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
16838 struct lpfc_hba *phba = vport->phba;
16839 LPFC_MBOXQ_t *mb, *nextmb;
16840 struct lpfc_dmabuf *mp;
16841 struct lpfc_nodelist *ndlp;
16842 struct lpfc_nodelist *act_mbx_ndlp = NULL;
16843 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
16844 LIST_HEAD(mbox_cmd_list);
16845 uint8_t restart_loop;
16847 /* Clean up internally queued mailbox commands with the vport */
16848 spin_lock_irq(&phba->hbalock);
16849 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
16850 if (mb->vport != vport)
16853 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
16854 (mb->u.mb.mbxCommand != MBX_REG_VPI))
16857 list_del(&mb->list);
16858 list_add_tail(&mb->list, &mbox_cmd_list);
16860 /* Clean up active mailbox command with the vport */
16861 mb = phba->sli.mbox_active;
16862 if (mb && (mb->vport == vport)) {
16863 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
16864 (mb->u.mb.mbxCommand == MBX_REG_VPI))
16865 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16866 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
16867 act_mbx_ndlp = (struct lpfc_nodelist *)mb->context2;
16868 /* Put reference count for delayed processing */
16869 act_mbx_ndlp = lpfc_nlp_get(act_mbx_ndlp);
16870 /* Unregister the RPI when mailbox complete */
16871 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
16874 /* Cleanup any mailbox completions which are not yet processed */
16877 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
16879 * If this mailox is already processed or it is
16880 * for another vport ignore it.
16882 if ((mb->vport != vport) ||
16883 (mb->mbox_flag & LPFC_MBX_IMED_UNREG))
16886 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
16887 (mb->u.mb.mbxCommand != MBX_REG_VPI))
16890 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16891 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
16892 ndlp = (struct lpfc_nodelist *)mb->context2;
16893 /* Unregister the RPI when mailbox complete */
16894 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
16896 spin_unlock_irq(&phba->hbalock);
16897 spin_lock(shost->host_lock);
16898 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
16899 spin_unlock(shost->host_lock);
16900 spin_lock_irq(&phba->hbalock);
16904 } while (restart_loop);
16906 spin_unlock_irq(&phba->hbalock);
16908 /* Release the cleaned-up mailbox commands */
16909 while (!list_empty(&mbox_cmd_list)) {
16910 list_remove_head(&mbox_cmd_list, mb, LPFC_MBOXQ_t, list);
16911 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
16912 mp = (struct lpfc_dmabuf *) (mb->context1);
16914 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
16917 ndlp = (struct lpfc_nodelist *) mb->context2;
16918 mb->context2 = NULL;
16920 spin_lock(shost->host_lock);
16921 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
16922 spin_unlock(shost->host_lock);
16923 lpfc_nlp_put(ndlp);
16926 mempool_free(mb, phba->mbox_mem_pool);
16929 /* Release the ndlp with the cleaned-up active mailbox command */
16930 if (act_mbx_ndlp) {
16931 spin_lock(shost->host_lock);
16932 act_mbx_ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
16933 spin_unlock(shost->host_lock);
16934 lpfc_nlp_put(act_mbx_ndlp);
16939 * lpfc_drain_txq - Drain the txq
16940 * @phba: Pointer to HBA context object.
16942 * This function attempt to submit IOCBs on the txq
16943 * to the adapter. For SLI4 adapters, the txq contains
16944 * ELS IOCBs that have been deferred because the there
16945 * are no SGLs. This congestion can occur with large
16946 * vport counts during node discovery.
16950 lpfc_drain_txq(struct lpfc_hba *phba)
16952 LIST_HEAD(completions);
16953 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
16954 struct lpfc_iocbq *piocbq = NULL;
16955 unsigned long iflags = 0;
16956 char *fail_msg = NULL;
16957 struct lpfc_sglq *sglq;
16958 union lpfc_wqe wqe;
16961 spin_lock_irqsave(&pring->ring_lock, iflags);
16962 list_for_each_entry(piocbq, &pring->txq, list) {
16966 if (txq_cnt > pring->txq_max)
16967 pring->txq_max = txq_cnt;
16969 spin_unlock_irqrestore(&pring->ring_lock, iflags);
16971 while (!list_empty(&pring->txq)) {
16972 spin_lock_irqsave(&pring->ring_lock, iflags);
16974 piocbq = lpfc_sli_ringtx_get(phba, pring);
16976 spin_unlock_irqrestore(&pring->ring_lock, iflags);
16977 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16978 "2823 txq empty and txq_cnt is %d\n ",
16982 sglq = __lpfc_sli_get_sglq(phba, piocbq);
16984 __lpfc_sli_ringtx_put(phba, pring, piocbq);
16985 spin_unlock_irqrestore(&pring->ring_lock, iflags);
16990 /* The xri and iocb resources secured,
16991 * attempt to issue request
16993 piocbq->sli4_lxritag = sglq->sli4_lxritag;
16994 piocbq->sli4_xritag = sglq->sli4_xritag;
16995 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocbq, sglq))
16996 fail_msg = "to convert bpl to sgl";
16997 else if (lpfc_sli4_iocb2wqe(phba, piocbq, &wqe))
16998 fail_msg = "to convert iocb to wqe";
16999 else if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
17000 fail_msg = " - Wq is full";
17002 lpfc_sli_ringtxcmpl_put(phba, pring, piocbq);
17005 /* Failed means we can't issue and need to cancel */
17006 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17007 "2822 IOCB failed %s iotag 0x%x "
17010 piocbq->iotag, piocbq->sli4_xritag);
17011 list_add_tail(&piocbq->list, &completions);
17013 spin_unlock_irqrestore(&pring->ring_lock, iflags);
17016 /* Cancel all the IOCBs that cannot be issued */
17017 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
17018 IOERR_SLI_ABORTED);