1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2012 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 *,
76 lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq)
82 * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
83 * @q: The Work Queue to operate on.
84 * @wqe: The work Queue Entry to put on the Work queue.
86 * This routine will copy the contents of @wqe to the next available entry on
87 * the @q. This function will then ring the Work Queue Doorbell to signal the
88 * HBA to start processing the Work Queue Entry. This function returns 0 if
89 * successful. If no entries are available on @q then this function will return
91 * The caller is expected to hold the hbalock when calling this routine.
94 lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe)
96 union lpfc_wqe *temp_wqe;
97 struct lpfc_register doorbell;
101 /* sanity check on queue memory */
104 temp_wqe = q->qe[q->host_index].wqe;
106 /* If the host has not yet processed the next entry then we are done */
107 idx = ((q->host_index + 1) % q->entry_count);
108 if (idx == q->hba_index) {
113 /* set consumption flag every once in a while */
114 if (!((q->host_index + 1) % q->entry_repost))
115 bf_set(wqe_wqec, &wqe->generic.wqe_com, 1);
116 if (q->phba->sli3_options & LPFC_SLI4_PHWQ_ENABLED)
117 bf_set(wqe_wqid, &wqe->generic.wqe_com, q->queue_id);
118 lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size);
120 /* Update the host index before invoking device */
121 host_index = q->host_index;
127 if (q->db_format == LPFC_DB_LIST_FORMAT) {
128 bf_set(lpfc_wq_db_list_fm_num_posted, &doorbell, 1);
129 bf_set(lpfc_wq_db_list_fm_index, &doorbell, host_index);
130 bf_set(lpfc_wq_db_list_fm_id, &doorbell, q->queue_id);
131 } else if (q->db_format == LPFC_DB_RING_FORMAT) {
132 bf_set(lpfc_wq_db_ring_fm_num_posted, &doorbell, 1);
133 bf_set(lpfc_wq_db_ring_fm_id, &doorbell, q->queue_id);
137 writel(doorbell.word0, q->db_regaddr);
143 * lpfc_sli4_wq_release - Updates internal hba index for WQ
144 * @q: The Work Queue to operate on.
145 * @index: The index to advance the hba index to.
147 * This routine will update the HBA index of a queue to reflect consumption of
148 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
149 * an entry the host calls this function to update the queue's internal
150 * pointers. This routine returns the number of entries that were consumed by
154 lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index)
156 uint32_t released = 0;
158 /* sanity check on queue memory */
162 if (q->hba_index == index)
165 q->hba_index = ((q->hba_index + 1) % q->entry_count);
167 } while (q->hba_index != index);
172 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
173 * @q: The Mailbox Queue to operate on.
174 * @wqe: The Mailbox Queue Entry to put on the Work queue.
176 * This routine will copy the contents of @mqe to the next available entry on
177 * the @q. This function will then ring the Work Queue Doorbell to signal the
178 * HBA to start processing the Work Queue Entry. This function returns 0 if
179 * successful. If no entries are available on @q then this function will return
181 * The caller is expected to hold the hbalock when calling this routine.
184 lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
186 struct lpfc_mqe *temp_mqe;
187 struct lpfc_register doorbell;
190 /* sanity check on queue memory */
193 temp_mqe = q->qe[q->host_index].mqe;
195 /* If the host has not yet processed the next entry then we are done */
196 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
198 lpfc_sli_pcimem_bcopy(mqe, temp_mqe, q->entry_size);
199 /* Save off the mailbox pointer for completion */
200 q->phba->mbox = (MAILBOX_t *)temp_mqe;
202 /* Update the host index before invoking device */
203 host_index = q->host_index;
204 q->host_index = ((q->host_index + 1) % q->entry_count);
208 bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1);
209 bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id);
210 writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr);
215 * lpfc_sli4_mq_release - Updates internal hba index for MQ
216 * @q: The Mailbox Queue to operate on.
218 * This routine will update the HBA index of a queue to reflect consumption of
219 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
220 * an entry the host calls this function to update the queue's internal
221 * pointers. This routine returns the number of entries that were consumed by
225 lpfc_sli4_mq_release(struct lpfc_queue *q)
227 /* sanity check on queue memory */
231 /* Clear the mailbox pointer for completion */
232 q->phba->mbox = NULL;
233 q->hba_index = ((q->hba_index + 1) % q->entry_count);
238 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
239 * @q: The Event Queue to get the first valid EQE from
241 * This routine will get the first valid Event Queue Entry from @q, update
242 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
243 * the Queue (no more work to do), or the Queue is full of EQEs that have been
244 * processed, but not popped back to the HBA then this routine will return NULL.
246 static struct lpfc_eqe *
247 lpfc_sli4_eq_get(struct lpfc_queue *q)
249 struct lpfc_eqe *eqe;
252 /* sanity check on queue memory */
255 eqe = q->qe[q->hba_index].eqe;
257 /* If the next EQE is not valid then we are done */
258 if (!bf_get_le32(lpfc_eqe_valid, eqe))
260 /* If the host has not yet processed the next entry then we are done */
261 idx = ((q->hba_index + 1) % q->entry_count);
262 if (idx == q->host_index)
270 * lpfc_sli4_eq_clr_intr - Turn off interrupts from this EQ
271 * @q: The Event Queue to disable interrupts
275 lpfc_sli4_eq_clr_intr(struct lpfc_queue *q)
277 struct lpfc_register doorbell;
280 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
281 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
282 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
283 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
284 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
285 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
289 * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
290 * @q: The Event Queue that the host has completed processing for.
291 * @arm: Indicates whether the host wants to arms this CQ.
293 * This routine will mark all Event Queue Entries on @q, from the last
294 * known completed entry to the last entry that was processed, as completed
295 * by clearing the valid bit for each completion queue entry. Then it will
296 * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
297 * The internal host index in the @q will be updated by this routine to indicate
298 * that the host has finished processing the entries. The @arm parameter
299 * indicates that the queue should be rearmed when ringing the doorbell.
301 * This function will return the number of EQEs that were popped.
304 lpfc_sli4_eq_release(struct lpfc_queue *q, bool arm)
306 uint32_t released = 0;
307 struct lpfc_eqe *temp_eqe;
308 struct lpfc_register doorbell;
310 /* sanity check on queue memory */
314 /* while there are valid entries */
315 while (q->hba_index != q->host_index) {
316 temp_eqe = q->qe[q->host_index].eqe;
317 bf_set_le32(lpfc_eqe_valid, temp_eqe, 0);
319 q->host_index = ((q->host_index + 1) % q->entry_count);
321 if (unlikely(released == 0 && !arm))
324 /* ring doorbell for number popped */
327 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
328 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
330 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
331 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
332 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
333 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
334 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
335 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
336 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
337 if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
338 readl(q->phba->sli4_hba.EQCQDBregaddr);
343 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
344 * @q: The Completion Queue to get the first valid CQE from
346 * This routine will get the first valid Completion Queue Entry from @q, update
347 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
348 * the Queue (no more work to do), or the Queue is full of CQEs that have been
349 * processed, but not popped back to the HBA then this routine will return NULL.
351 static struct lpfc_cqe *
352 lpfc_sli4_cq_get(struct lpfc_queue *q)
354 struct lpfc_cqe *cqe;
357 /* sanity check on queue memory */
361 /* If the next CQE is not valid then we are done */
362 if (!bf_get_le32(lpfc_cqe_valid, q->qe[q->hba_index].cqe))
364 /* If the host has not yet processed the next entry then we are done */
365 idx = ((q->hba_index + 1) % q->entry_count);
366 if (idx == q->host_index)
369 cqe = q->qe[q->hba_index].cqe;
375 * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ
376 * @q: The Completion Queue that the host has completed processing for.
377 * @arm: Indicates whether the host wants to arms this CQ.
379 * This routine will mark all Completion queue entries on @q, from the last
380 * known completed entry to the last entry that was processed, as completed
381 * by clearing the valid bit for each completion queue entry. Then it will
382 * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
383 * The internal host index in the @q will be updated by this routine to indicate
384 * that the host has finished processing the entries. The @arm parameter
385 * indicates that the queue should be rearmed when ringing the doorbell.
387 * This function will return the number of CQEs that were released.
390 lpfc_sli4_cq_release(struct lpfc_queue *q, bool arm)
392 uint32_t released = 0;
393 struct lpfc_cqe *temp_qe;
394 struct lpfc_register doorbell;
396 /* sanity check on queue memory */
399 /* while there are valid entries */
400 while (q->hba_index != q->host_index) {
401 temp_qe = q->qe[q->host_index].cqe;
402 bf_set_le32(lpfc_cqe_valid, temp_qe, 0);
404 q->host_index = ((q->host_index + 1) % q->entry_count);
406 if (unlikely(released == 0 && !arm))
409 /* ring doorbell for number popped */
412 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
413 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
414 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION);
415 bf_set(lpfc_eqcq_doorbell_cqid_hi, &doorbell,
416 (q->queue_id >> LPFC_CQID_HI_FIELD_SHIFT));
417 bf_set(lpfc_eqcq_doorbell_cqid_lo, &doorbell, q->queue_id);
418 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
423 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
424 * @q: The Header Receive Queue to operate on.
425 * @wqe: The Receive Queue Entry to put on the Receive queue.
427 * This routine will copy the contents of @wqe to the next available entry on
428 * the @q. This function will then ring the Receive Queue Doorbell to signal the
429 * HBA to start processing the Receive Queue Entry. This function returns the
430 * index that the rqe was copied to if successful. If no entries are available
431 * on @q then this function will return -ENOMEM.
432 * The caller is expected to hold the hbalock when calling this routine.
435 lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
436 struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe)
438 struct lpfc_rqe *temp_hrqe;
439 struct lpfc_rqe *temp_drqe;
440 struct lpfc_register doorbell;
441 int put_index = hq->host_index;
443 /* sanity check on queue memory */
444 if (unlikely(!hq) || unlikely(!dq))
446 temp_hrqe = hq->qe[hq->host_index].rqe;
447 temp_drqe = dq->qe[dq->host_index].rqe;
449 if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ)
451 if (hq->host_index != dq->host_index)
453 /* If the host has not yet processed the next entry then we are done */
454 if (((hq->host_index + 1) % hq->entry_count) == hq->hba_index)
456 lpfc_sli_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size);
457 lpfc_sli_pcimem_bcopy(drqe, temp_drqe, dq->entry_size);
459 /* Update the host index to point to the next slot */
460 hq->host_index = ((hq->host_index + 1) % hq->entry_count);
461 dq->host_index = ((dq->host_index + 1) % dq->entry_count);
463 /* Ring The Header Receive Queue Doorbell */
464 if (!(hq->host_index % hq->entry_repost)) {
466 if (hq->db_format == LPFC_DB_RING_FORMAT) {
467 bf_set(lpfc_rq_db_ring_fm_num_posted, &doorbell,
469 bf_set(lpfc_rq_db_ring_fm_id, &doorbell, hq->queue_id);
470 } else if (hq->db_format == LPFC_DB_LIST_FORMAT) {
471 bf_set(lpfc_rq_db_list_fm_num_posted, &doorbell,
473 bf_set(lpfc_rq_db_list_fm_index, &doorbell,
475 bf_set(lpfc_rq_db_list_fm_id, &doorbell, hq->queue_id);
479 writel(doorbell.word0, hq->db_regaddr);
485 * lpfc_sli4_rq_release - Updates internal hba index for RQ
486 * @q: The Header Receive Queue to operate on.
488 * This routine will update the HBA index of a queue to reflect consumption of
489 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
490 * consumed an entry the host calls this function to update the queue's
491 * internal pointers. This routine returns the number of entries that were
492 * consumed by the HBA.
495 lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq)
497 /* sanity check on queue memory */
498 if (unlikely(!hq) || unlikely(!dq))
501 if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ))
503 hq->hba_index = ((hq->hba_index + 1) % hq->entry_count);
504 dq->hba_index = ((dq->hba_index + 1) % dq->entry_count);
509 * lpfc_cmd_iocb - Get next command iocb entry in the ring
510 * @phba: Pointer to HBA context object.
511 * @pring: Pointer to driver SLI ring object.
513 * This function returns pointer to next command iocb entry
514 * in the command ring. The caller must hold hbalock to prevent
515 * other threads consume the next command iocb.
516 * SLI-2/SLI-3 provide different sized iocbs.
518 static inline IOCB_t *
519 lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
521 return (IOCB_t *) (((char *) pring->sli.sli3.cmdringaddr) +
522 pring->sli.sli3.cmdidx * phba->iocb_cmd_size);
526 * lpfc_resp_iocb - Get next response iocb entry in the ring
527 * @phba: Pointer to HBA context object.
528 * @pring: Pointer to driver SLI ring object.
530 * This function returns pointer to next response iocb entry
531 * in the response ring. The caller must hold hbalock to make sure
532 * that no other thread consume the next response iocb.
533 * SLI-2/SLI-3 provide different sized iocbs.
535 static inline IOCB_t *
536 lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
538 return (IOCB_t *) (((char *) pring->sli.sli3.rspringaddr) +
539 pring->sli.sli3.rspidx * phba->iocb_rsp_size);
543 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
544 * @phba: Pointer to HBA context object.
546 * This function is called with hbalock held. This function
547 * allocates a new driver iocb object from the iocb pool. If the
548 * allocation is successful, it returns pointer to the newly
549 * allocated iocb object else it returns NULL.
552 __lpfc_sli_get_iocbq(struct lpfc_hba *phba)
554 struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
555 struct lpfc_iocbq * iocbq = NULL;
557 list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
560 if (phba->iocb_cnt > phba->iocb_max)
561 phba->iocb_max = phba->iocb_cnt;
566 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
567 * @phba: Pointer to HBA context object.
568 * @xritag: XRI value.
570 * This function clears the sglq pointer from the array of acive
571 * sglq's. The xritag that is passed in is used to index into the
572 * array. Before the xritag can be used it needs to be adjusted
573 * by subtracting the xribase.
575 * Returns sglq ponter = success, NULL = Failure.
577 static struct lpfc_sglq *
578 __lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
580 struct lpfc_sglq *sglq;
582 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
583 phba->sli4_hba.lpfc_sglq_active_list[xritag] = NULL;
588 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
589 * @phba: Pointer to HBA context object.
590 * @xritag: XRI value.
592 * This function returns the sglq pointer from the array of acive
593 * sglq's. The xritag that is passed in is used to index into the
594 * array. Before the xritag can be used it needs to be adjusted
595 * by subtracting the xribase.
597 * Returns sglq ponter = success, NULL = Failure.
600 __lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
602 struct lpfc_sglq *sglq;
604 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
609 * lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
610 * @phba: Pointer to HBA context object.
611 * @xritag: xri used in this exchange.
612 * @rrq: The RRQ to be cleared.
616 lpfc_clr_rrq_active(struct lpfc_hba *phba,
618 struct lpfc_node_rrq *rrq)
620 struct lpfc_nodelist *ndlp = NULL;
622 if ((rrq->vport) && NLP_CHK_NODE_ACT(rrq->ndlp))
623 ndlp = lpfc_findnode_did(rrq->vport, rrq->nlp_DID);
625 /* The target DID could have been swapped (cable swap)
626 * we should use the ndlp from the findnode if it is
629 if ((!ndlp) && rrq->ndlp)
635 if (test_and_clear_bit(xritag, ndlp->active_rrqs.xri_bitmap)) {
638 rrq->rrq_stop_time = 0;
641 mempool_free(rrq, phba->rrq_pool);
645 * lpfc_handle_rrq_active - Checks if RRQ has waithed RATOV.
646 * @phba: Pointer to HBA context object.
648 * This function is called with hbalock held. This function
649 * Checks if stop_time (ratov from setting rrq active) has
650 * been reached, if it has and the send_rrq flag is set then
651 * it will call lpfc_send_rrq. If the send_rrq flag is not set
652 * then it will just call the routine to clear the rrq and
653 * free the rrq resource.
654 * The timer is set to the next rrq that is going to expire before
655 * leaving the routine.
659 lpfc_handle_rrq_active(struct lpfc_hba *phba)
661 struct lpfc_node_rrq *rrq;
662 struct lpfc_node_rrq *nextrrq;
663 unsigned long next_time;
664 unsigned long iflags;
667 spin_lock_irqsave(&phba->hbalock, iflags);
668 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
669 next_time = jiffies + HZ * (phba->fc_ratov + 1);
670 list_for_each_entry_safe(rrq, nextrrq,
671 &phba->active_rrq_list, list) {
672 if (time_after(jiffies, rrq->rrq_stop_time))
673 list_move(&rrq->list, &send_rrq);
674 else if (time_before(rrq->rrq_stop_time, next_time))
675 next_time = rrq->rrq_stop_time;
677 spin_unlock_irqrestore(&phba->hbalock, iflags);
678 if (!list_empty(&phba->active_rrq_list))
679 mod_timer(&phba->rrq_tmr, next_time);
680 list_for_each_entry_safe(rrq, nextrrq, &send_rrq, list) {
681 list_del(&rrq->list);
683 /* this call will free the rrq */
684 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
685 else if (lpfc_send_rrq(phba, rrq)) {
686 /* if we send the rrq then the completion handler
687 * will clear the bit in the xribitmap.
689 lpfc_clr_rrq_active(phba, rrq->xritag,
696 * lpfc_get_active_rrq - Get the active RRQ for this exchange.
697 * @vport: Pointer to vport context object.
698 * @xri: The xri used in the exchange.
699 * @did: The targets DID for this exchange.
701 * returns NULL = rrq not found in the phba->active_rrq_list.
702 * rrq = rrq for this xri and target.
704 struct lpfc_node_rrq *
705 lpfc_get_active_rrq(struct lpfc_vport *vport, uint16_t xri, uint32_t did)
707 struct lpfc_hba *phba = vport->phba;
708 struct lpfc_node_rrq *rrq;
709 struct lpfc_node_rrq *nextrrq;
710 unsigned long iflags;
712 if (phba->sli_rev != LPFC_SLI_REV4)
714 spin_lock_irqsave(&phba->hbalock, iflags);
715 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) {
716 if (rrq->vport == vport && rrq->xritag == xri &&
717 rrq->nlp_DID == did){
718 list_del(&rrq->list);
719 spin_unlock_irqrestore(&phba->hbalock, iflags);
723 spin_unlock_irqrestore(&phba->hbalock, iflags);
728 * lpfc_cleanup_vports_rrqs - Remove and clear the active RRQ for this vport.
729 * @vport: Pointer to vport context object.
730 * @ndlp: Pointer to the lpfc_node_list structure.
731 * If ndlp is NULL Remove all active RRQs for this vport from the
732 * phba->active_rrq_list and clear the rrq.
733 * If ndlp is not NULL then only remove rrqs for this vport & this ndlp.
736 lpfc_cleanup_vports_rrqs(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
739 struct lpfc_hba *phba = vport->phba;
740 struct lpfc_node_rrq *rrq;
741 struct lpfc_node_rrq *nextrrq;
742 unsigned long iflags;
745 if (phba->sli_rev != LPFC_SLI_REV4)
748 lpfc_sli4_vport_delete_els_xri_aborted(vport);
749 lpfc_sli4_vport_delete_fcp_xri_aborted(vport);
751 spin_lock_irqsave(&phba->hbalock, iflags);
752 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list)
753 if ((rrq->vport == vport) && (!ndlp || rrq->ndlp == ndlp))
754 list_move(&rrq->list, &rrq_list);
755 spin_unlock_irqrestore(&phba->hbalock, iflags);
757 list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
758 list_del(&rrq->list);
759 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
764 * lpfc_cleanup_wt_rrqs - Remove all rrq's from the active list.
765 * @phba: Pointer to HBA context object.
767 * Remove all rrqs from the phba->active_rrq_list and free them by
768 * calling __lpfc_clr_active_rrq
772 lpfc_cleanup_wt_rrqs(struct lpfc_hba *phba)
774 struct lpfc_node_rrq *rrq;
775 struct lpfc_node_rrq *nextrrq;
776 unsigned long next_time;
777 unsigned long iflags;
780 if (phba->sli_rev != LPFC_SLI_REV4)
782 spin_lock_irqsave(&phba->hbalock, iflags);
783 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
784 next_time = jiffies + HZ * (phba->fc_ratov * 2);
785 list_splice_init(&phba->active_rrq_list, &rrq_list);
786 spin_unlock_irqrestore(&phba->hbalock, iflags);
788 list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
789 list_del(&rrq->list);
790 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
792 if (!list_empty(&phba->active_rrq_list))
793 mod_timer(&phba->rrq_tmr, next_time);
798 * lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
799 * @phba: Pointer to HBA context object.
800 * @ndlp: Targets nodelist pointer for this exchange.
801 * @xritag the xri in the bitmap to test.
803 * This function is called with hbalock held. This function
804 * returns 0 = rrq not active for this xri
805 * 1 = rrq is valid for this xri.
808 lpfc_test_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
813 if (test_bit(xritag, ndlp->active_rrqs.xri_bitmap))
820 * lpfc_set_rrq_active - set RRQ active bit in xri_bitmap.
821 * @phba: Pointer to HBA context object.
822 * @ndlp: nodelist pointer for this target.
823 * @xritag: xri used in this exchange.
824 * @rxid: Remote Exchange ID.
825 * @send_rrq: Flag used to determine if we should send rrq els cmd.
827 * This function takes the hbalock.
828 * The active bit is always set in the active rrq xri_bitmap even
829 * if there is no slot avaiable for the other rrq information.
831 * returns 0 rrq actived for this xri
832 * < 0 No memory or invalid ndlp.
835 lpfc_set_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
836 uint16_t xritag, uint16_t rxid, uint16_t send_rrq)
838 unsigned long iflags;
839 struct lpfc_node_rrq *rrq;
845 if (!phba->cfg_enable_rrq)
848 spin_lock_irqsave(&phba->hbalock, iflags);
849 if (phba->pport->load_flag & FC_UNLOADING) {
850 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
855 * set the active bit even if there is no mem available.
857 if (NLP_CHK_FREE_REQ(ndlp))
860 if (ndlp->vport && (ndlp->vport->load_flag & FC_UNLOADING))
863 if (test_and_set_bit(xritag, ndlp->active_rrqs.xri_bitmap))
866 spin_unlock_irqrestore(&phba->hbalock, iflags);
867 rrq = mempool_alloc(phba->rrq_pool, GFP_KERNEL);
869 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
870 "3155 Unable to allocate RRQ xri:0x%x rxid:0x%x"
871 " DID:0x%x Send:%d\n",
872 xritag, rxid, ndlp->nlp_DID, send_rrq);
875 rrq->send_rrq = send_rrq;
876 rrq->xritag = xritag;
877 rrq->rrq_stop_time = jiffies + HZ * (phba->fc_ratov + 1);
879 rrq->nlp_DID = ndlp->nlp_DID;
880 rrq->vport = ndlp->vport;
882 rrq->send_rrq = send_rrq;
883 spin_lock_irqsave(&phba->hbalock, iflags);
884 empty = list_empty(&phba->active_rrq_list);
885 list_add_tail(&rrq->list, &phba->active_rrq_list);
886 phba->hba_flag |= HBA_RRQ_ACTIVE;
888 lpfc_worker_wake_up(phba);
889 spin_unlock_irqrestore(&phba->hbalock, iflags);
892 spin_unlock_irqrestore(&phba->hbalock, iflags);
893 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
894 "2921 Can't set rrq active xri:0x%x rxid:0x%x"
895 " DID:0x%x Send:%d\n",
896 xritag, rxid, ndlp->nlp_DID, send_rrq);
901 * __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool
902 * @phba: Pointer to HBA context object.
903 * @piocb: Pointer to the iocbq.
905 * This function is called with hbalock held. This function
906 * gets a new driver sglq object from the sglq list. If the
907 * list is not empty then it is successful, it returns pointer to the newly
908 * allocated sglq object else it returns NULL.
910 static struct lpfc_sglq *
911 __lpfc_sli_get_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
913 struct list_head *lpfc_sgl_list = &phba->sli4_hba.lpfc_sgl_list;
914 struct lpfc_sglq *sglq = NULL;
915 struct lpfc_sglq *start_sglq = NULL;
916 struct lpfc_scsi_buf *lpfc_cmd;
917 struct lpfc_nodelist *ndlp;
920 if (piocbq->iocb_flag & LPFC_IO_FCP) {
921 lpfc_cmd = (struct lpfc_scsi_buf *) piocbq->context1;
922 ndlp = lpfc_cmd->rdata->pnode;
923 } else if ((piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) &&
924 !(piocbq->iocb_flag & LPFC_IO_LIBDFC))
925 ndlp = piocbq->context_un.ndlp;
926 else if ((piocbq->iocb.ulpCommand == CMD_ELS_REQUEST64_CR) &&
927 (piocbq->iocb_flag & LPFC_IO_LIBDFC))
928 ndlp = piocbq->context_un.ndlp;
930 ndlp = piocbq->context1;
932 list_remove_head(lpfc_sgl_list, sglq, struct lpfc_sglq, list);
937 if (lpfc_test_rrq_active(phba, ndlp, sglq->sli4_lxritag)) {
938 /* This xri has an rrq outstanding for this DID.
939 * put it back in the list and get another xri.
941 list_add_tail(&sglq->list, lpfc_sgl_list);
943 list_remove_head(lpfc_sgl_list, sglq,
944 struct lpfc_sglq, list);
945 if (sglq == start_sglq) {
953 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
954 sglq->state = SGL_ALLOCATED;
960 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
961 * @phba: Pointer to HBA context object.
963 * This function is called with no lock held. This function
964 * allocates a new driver iocb object from the iocb pool. If the
965 * allocation is successful, it returns pointer to the newly
966 * allocated iocb object else it returns NULL.
969 lpfc_sli_get_iocbq(struct lpfc_hba *phba)
971 struct lpfc_iocbq * iocbq = NULL;
972 unsigned long iflags;
974 spin_lock_irqsave(&phba->hbalock, iflags);
975 iocbq = __lpfc_sli_get_iocbq(phba);
976 spin_unlock_irqrestore(&phba->hbalock, iflags);
981 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
982 * @phba: Pointer to HBA context object.
983 * @iocbq: Pointer to driver iocb object.
985 * This function is called with hbalock held to release driver
986 * iocb object to the iocb pool. The iotag in the iocb object
987 * does not change for each use of the iocb object. This function
988 * clears all other fields of the iocb object when it is freed.
989 * The sqlq structure that holds the xritag and phys and virtual
990 * mappings for the scatter gather list is retrieved from the
991 * active array of sglq. The get of the sglq pointer also clears
992 * the entry in the array. If the status of the IO indiactes that
993 * this IO was aborted then the sglq entry it put on the
994 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
995 * IO has good status or fails for any other reason then the sglq
996 * entry is added to the free list (lpfc_sgl_list).
999 __lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1001 struct lpfc_sglq *sglq;
1002 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1003 unsigned long iflag = 0;
1004 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
1006 if (iocbq->sli4_xritag == NO_XRI)
1009 sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_lxritag);
1012 if ((iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) &&
1013 (sglq->state != SGL_XRI_ABORTED)) {
1014 spin_lock_irqsave(&phba->sli4_hba.abts_sgl_list_lock,
1016 list_add(&sglq->list,
1017 &phba->sli4_hba.lpfc_abts_els_sgl_list);
1018 spin_unlock_irqrestore(
1019 &phba->sli4_hba.abts_sgl_list_lock, iflag);
1021 sglq->state = SGL_FREED;
1023 list_add_tail(&sglq->list,
1024 &phba->sli4_hba.lpfc_sgl_list);
1026 /* Check if TXQ queue needs to be serviced */
1028 lpfc_worker_wake_up(phba);
1034 * Clean all volatile data fields, preserve iotag and node struct.
1036 memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1037 iocbq->sli4_lxritag = NO_XRI;
1038 iocbq->sli4_xritag = NO_XRI;
1039 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1044 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
1045 * @phba: Pointer to HBA context object.
1046 * @iocbq: Pointer to driver iocb object.
1048 * This function is called with hbalock held to release driver
1049 * iocb object to the iocb pool. The iotag in the iocb object
1050 * does not change for each use of the iocb object. This function
1051 * clears all other fields of the iocb object when it is freed.
1054 __lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1056 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1059 * Clean all volatile data fields, preserve iotag and node struct.
1061 memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1062 iocbq->sli4_xritag = NO_XRI;
1063 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1067 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
1068 * @phba: Pointer to HBA context object.
1069 * @iocbq: Pointer to driver iocb object.
1071 * This function is called with hbalock held to release driver
1072 * iocb object to the iocb pool. The iotag in the iocb object
1073 * does not change for each use of the iocb object. This function
1074 * clears all other fields of the iocb object when it is freed.
1077 __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1079 phba->__lpfc_sli_release_iocbq(phba, iocbq);
1084 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
1085 * @phba: Pointer to HBA context object.
1086 * @iocbq: Pointer to driver iocb object.
1088 * This function is called with no lock held to release the iocb to
1092 lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1094 unsigned long iflags;
1097 * Clean all volatile data fields, preserve iotag and node struct.
1099 spin_lock_irqsave(&phba->hbalock, iflags);
1100 __lpfc_sli_release_iocbq(phba, iocbq);
1101 spin_unlock_irqrestore(&phba->hbalock, iflags);
1105 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
1106 * @phba: Pointer to HBA context object.
1107 * @iocblist: List of IOCBs.
1108 * @ulpstatus: ULP status in IOCB command field.
1109 * @ulpWord4: ULP word-4 in IOCB command field.
1111 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
1112 * on the list by invoking the complete callback function associated with the
1113 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
1117 lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
1118 uint32_t ulpstatus, uint32_t ulpWord4)
1120 struct lpfc_iocbq *piocb;
1122 while (!list_empty(iocblist)) {
1123 list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
1125 if (!piocb->iocb_cmpl)
1126 lpfc_sli_release_iocbq(phba, piocb);
1128 piocb->iocb.ulpStatus = ulpstatus;
1129 piocb->iocb.un.ulpWord[4] = ulpWord4;
1130 (piocb->iocb_cmpl) (phba, piocb, piocb);
1137 * lpfc_sli_iocb_cmd_type - Get the iocb type
1138 * @iocb_cmnd: iocb command code.
1140 * This function is called by ring event handler function to get the iocb type.
1141 * This function translates the iocb command to an iocb command type used to
1142 * decide the final disposition of each completed IOCB.
1143 * The function returns
1144 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
1145 * LPFC_SOL_IOCB if it is a solicited iocb completion
1146 * LPFC_ABORT_IOCB if it is an abort iocb
1147 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
1149 * The caller is not required to hold any lock.
1151 static lpfc_iocb_type
1152 lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
1154 lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
1156 if (iocb_cmnd > CMD_MAX_IOCB_CMD)
1159 switch (iocb_cmnd) {
1160 case CMD_XMIT_SEQUENCE_CR:
1161 case CMD_XMIT_SEQUENCE_CX:
1162 case CMD_XMIT_BCAST_CN:
1163 case CMD_XMIT_BCAST_CX:
1164 case CMD_ELS_REQUEST_CR:
1165 case CMD_ELS_REQUEST_CX:
1166 case CMD_CREATE_XRI_CR:
1167 case CMD_CREATE_XRI_CX:
1168 case CMD_GET_RPI_CN:
1169 case CMD_XMIT_ELS_RSP_CX:
1170 case CMD_GET_RPI_CR:
1171 case CMD_FCP_IWRITE_CR:
1172 case CMD_FCP_IWRITE_CX:
1173 case CMD_FCP_IREAD_CR:
1174 case CMD_FCP_IREAD_CX:
1175 case CMD_FCP_ICMND_CR:
1176 case CMD_FCP_ICMND_CX:
1177 case CMD_FCP_TSEND_CX:
1178 case CMD_FCP_TRSP_CX:
1179 case CMD_FCP_TRECEIVE_CX:
1180 case CMD_FCP_AUTO_TRSP_CX:
1181 case CMD_ADAPTER_MSG:
1182 case CMD_ADAPTER_DUMP:
1183 case CMD_XMIT_SEQUENCE64_CR:
1184 case CMD_XMIT_SEQUENCE64_CX:
1185 case CMD_XMIT_BCAST64_CN:
1186 case CMD_XMIT_BCAST64_CX:
1187 case CMD_ELS_REQUEST64_CR:
1188 case CMD_ELS_REQUEST64_CX:
1189 case CMD_FCP_IWRITE64_CR:
1190 case CMD_FCP_IWRITE64_CX:
1191 case CMD_FCP_IREAD64_CR:
1192 case CMD_FCP_IREAD64_CX:
1193 case CMD_FCP_ICMND64_CR:
1194 case CMD_FCP_ICMND64_CX:
1195 case CMD_FCP_TSEND64_CX:
1196 case CMD_FCP_TRSP64_CX:
1197 case CMD_FCP_TRECEIVE64_CX:
1198 case CMD_GEN_REQUEST64_CR:
1199 case CMD_GEN_REQUEST64_CX:
1200 case CMD_XMIT_ELS_RSP64_CX:
1201 case DSSCMD_IWRITE64_CR:
1202 case DSSCMD_IWRITE64_CX:
1203 case DSSCMD_IREAD64_CR:
1204 case DSSCMD_IREAD64_CX:
1205 type = LPFC_SOL_IOCB;
1207 case CMD_ABORT_XRI_CN:
1208 case CMD_ABORT_XRI_CX:
1209 case CMD_CLOSE_XRI_CN:
1210 case CMD_CLOSE_XRI_CX:
1211 case CMD_XRI_ABORTED_CX:
1212 case CMD_ABORT_MXRI64_CN:
1213 case CMD_XMIT_BLS_RSP64_CX:
1214 type = LPFC_ABORT_IOCB;
1216 case CMD_RCV_SEQUENCE_CX:
1217 case CMD_RCV_ELS_REQ_CX:
1218 case CMD_RCV_SEQUENCE64_CX:
1219 case CMD_RCV_ELS_REQ64_CX:
1220 case CMD_ASYNC_STATUS:
1221 case CMD_IOCB_RCV_SEQ64_CX:
1222 case CMD_IOCB_RCV_ELS64_CX:
1223 case CMD_IOCB_RCV_CONT64_CX:
1224 case CMD_IOCB_RET_XRI64_CX:
1225 type = LPFC_UNSOL_IOCB;
1227 case CMD_IOCB_XMIT_MSEQ64_CR:
1228 case CMD_IOCB_XMIT_MSEQ64_CX:
1229 case CMD_IOCB_RCV_SEQ_LIST64_CX:
1230 case CMD_IOCB_RCV_ELS_LIST64_CX:
1231 case CMD_IOCB_CLOSE_EXTENDED_CN:
1232 case CMD_IOCB_ABORT_EXTENDED_CN:
1233 case CMD_IOCB_RET_HBQE64_CN:
1234 case CMD_IOCB_FCP_IBIDIR64_CR:
1235 case CMD_IOCB_FCP_IBIDIR64_CX:
1236 case CMD_IOCB_FCP_ITASKMGT64_CX:
1237 case CMD_IOCB_LOGENTRY_CN:
1238 case CMD_IOCB_LOGENTRY_ASYNC_CN:
1239 printk("%s - Unhandled SLI-3 Command x%x\n",
1240 __func__, iocb_cmnd);
1241 type = LPFC_UNKNOWN_IOCB;
1244 type = LPFC_UNKNOWN_IOCB;
1252 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
1253 * @phba: Pointer to HBA context object.
1255 * This function is called from SLI initialization code
1256 * to configure every ring of the HBA's SLI interface. The
1257 * caller is not required to hold any lock. This function issues
1258 * a config_ring mailbox command for each ring.
1259 * This function returns zero if successful else returns a negative
1263 lpfc_sli_ring_map(struct lpfc_hba *phba)
1265 struct lpfc_sli *psli = &phba->sli;
1270 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1274 phba->link_state = LPFC_INIT_MBX_CMDS;
1275 for (i = 0; i < psli->num_rings; i++) {
1276 lpfc_config_ring(phba, i, pmb);
1277 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
1278 if (rc != MBX_SUCCESS) {
1279 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1280 "0446 Adapter failed to init (%d), "
1281 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
1283 rc, pmbox->mbxCommand,
1284 pmbox->mbxStatus, i);
1285 phba->link_state = LPFC_HBA_ERROR;
1290 mempool_free(pmb, phba->mbox_mem_pool);
1295 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
1296 * @phba: Pointer to HBA context object.
1297 * @pring: Pointer to driver SLI ring object.
1298 * @piocb: Pointer to the driver iocb object.
1300 * This function is called with hbalock held. The function adds the
1301 * new iocb to txcmplq of the given ring. This function always returns
1302 * 0. If this function is called for ELS ring, this function checks if
1303 * there is a vport associated with the ELS command. This function also
1304 * starts els_tmofunc timer if this is an ELS command.
1307 lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1308 struct lpfc_iocbq *piocb)
1310 list_add_tail(&piocb->list, &pring->txcmplq);
1311 piocb->iocb_flag |= LPFC_IO_ON_TXCMPLQ;
1312 pring->txcmplq_cnt++;
1313 if (pring->txcmplq_cnt > pring->txcmplq_max)
1314 pring->txcmplq_max = pring->txcmplq_cnt;
1316 if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
1317 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
1318 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
1322 mod_timer(&piocb->vport->els_tmofunc,
1323 jiffies + HZ * (phba->fc_ratov << 1));
1331 * lpfc_sli_ringtx_get - Get first element of the txq
1332 * @phba: Pointer to HBA context object.
1333 * @pring: Pointer to driver SLI ring object.
1335 * This function is called with hbalock held to get next
1336 * iocb in txq of the given ring. If there is any iocb in
1337 * the txq, the function returns first iocb in the list after
1338 * removing the iocb from the list, else it returns NULL.
1341 lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1343 struct lpfc_iocbq *cmd_iocb;
1345 list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
1346 if (cmd_iocb != NULL)
1352 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
1353 * @phba: Pointer to HBA context object.
1354 * @pring: Pointer to driver SLI ring object.
1356 * This function is called with hbalock held and the caller must post the
1357 * iocb without releasing the lock. If the caller releases the lock,
1358 * iocb slot returned by the function is not guaranteed to be available.
1359 * The function returns pointer to the next available iocb slot if there
1360 * is available slot in the ring, else it returns NULL.
1361 * If the get index of the ring is ahead of the put index, the function
1362 * will post an error attention event to the worker thread to take the
1363 * HBA to offline state.
1366 lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1368 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
1369 uint32_t max_cmd_idx = pring->sli.sli3.numCiocb;
1370 if ((pring->sli.sli3.next_cmdidx == pring->sli.sli3.cmdidx) &&
1371 (++pring->sli.sli3.next_cmdidx >= max_cmd_idx))
1372 pring->sli.sli3.next_cmdidx = 0;
1374 if (unlikely(pring->sli.sli3.local_getidx ==
1375 pring->sli.sli3.next_cmdidx)) {
1377 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
1379 if (unlikely(pring->sli.sli3.local_getidx >= max_cmd_idx)) {
1380 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1381 "0315 Ring %d issue: portCmdGet %d "
1382 "is bigger than cmd ring %d\n",
1384 pring->sli.sli3.local_getidx,
1387 phba->link_state = LPFC_HBA_ERROR;
1389 * All error attention handlers are posted to
1392 phba->work_ha |= HA_ERATT;
1393 phba->work_hs = HS_FFER3;
1395 lpfc_worker_wake_up(phba);
1400 if (pring->sli.sli3.local_getidx == pring->sli.sli3.next_cmdidx)
1404 return lpfc_cmd_iocb(phba, pring);
1408 * lpfc_sli_next_iotag - Get an iotag for the iocb
1409 * @phba: Pointer to HBA context object.
1410 * @iocbq: Pointer to driver iocb object.
1412 * This function gets an iotag for the iocb. If there is no unused iotag and
1413 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
1414 * array and assigns a new iotag.
1415 * The function returns the allocated iotag if successful, else returns zero.
1416 * Zero is not a valid iotag.
1417 * The caller is not required to hold any lock.
1420 lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1422 struct lpfc_iocbq **new_arr;
1423 struct lpfc_iocbq **old_arr;
1425 struct lpfc_sli *psli = &phba->sli;
1428 spin_lock_irq(&phba->hbalock);
1429 iotag = psli->last_iotag;
1430 if(++iotag < psli->iocbq_lookup_len) {
1431 psli->last_iotag = iotag;
1432 psli->iocbq_lookup[iotag] = iocbq;
1433 spin_unlock_irq(&phba->hbalock);
1434 iocbq->iotag = iotag;
1436 } else if (psli->iocbq_lookup_len < (0xffff
1437 - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
1438 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
1439 spin_unlock_irq(&phba->hbalock);
1440 new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *),
1443 spin_lock_irq(&phba->hbalock);
1444 old_arr = psli->iocbq_lookup;
1445 if (new_len <= psli->iocbq_lookup_len) {
1446 /* highly unprobable case */
1448 iotag = psli->last_iotag;
1449 if(++iotag < psli->iocbq_lookup_len) {
1450 psli->last_iotag = iotag;
1451 psli->iocbq_lookup[iotag] = iocbq;
1452 spin_unlock_irq(&phba->hbalock);
1453 iocbq->iotag = iotag;
1456 spin_unlock_irq(&phba->hbalock);
1459 if (psli->iocbq_lookup)
1460 memcpy(new_arr, old_arr,
1461 ((psli->last_iotag + 1) *
1462 sizeof (struct lpfc_iocbq *)));
1463 psli->iocbq_lookup = new_arr;
1464 psli->iocbq_lookup_len = new_len;
1465 psli->last_iotag = iotag;
1466 psli->iocbq_lookup[iotag] = iocbq;
1467 spin_unlock_irq(&phba->hbalock);
1468 iocbq->iotag = iotag;
1473 spin_unlock_irq(&phba->hbalock);
1475 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
1476 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1483 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
1484 * @phba: Pointer to HBA context object.
1485 * @pring: Pointer to driver SLI ring object.
1486 * @iocb: Pointer to iocb slot in the ring.
1487 * @nextiocb: Pointer to driver iocb object which need to be
1488 * posted to firmware.
1490 * This function is called with hbalock held to post a new iocb to
1491 * the firmware. This function copies the new iocb to ring iocb slot and
1492 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1493 * a completion call back for this iocb else the function will free the
1497 lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1498 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
1503 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
1506 if (pring->ringno == LPFC_ELS_RING) {
1507 lpfc_debugfs_slow_ring_trc(phba,
1508 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1509 *(((uint32_t *) &nextiocb->iocb) + 4),
1510 *(((uint32_t *) &nextiocb->iocb) + 6),
1511 *(((uint32_t *) &nextiocb->iocb) + 7));
1515 * Issue iocb command to adapter
1517 lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
1519 pring->stats.iocb_cmd++;
1522 * If there is no completion routine to call, we can release the
1523 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1524 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1526 if (nextiocb->iocb_cmpl)
1527 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
1529 __lpfc_sli_release_iocbq(phba, nextiocb);
1532 * Let the HBA know what IOCB slot will be the next one the
1533 * driver will put a command into.
1535 pring->sli.sli3.cmdidx = pring->sli.sli3.next_cmdidx;
1536 writel(pring->sli.sli3.cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
1540 * lpfc_sli_update_full_ring - Update the chip attention register
1541 * @phba: Pointer to HBA context object.
1542 * @pring: Pointer to driver SLI ring object.
1544 * The caller is not required to hold any lock for calling this function.
1545 * This function updates the chip attention bits for the ring to inform firmware
1546 * that there are pending work to be done for this ring and requests an
1547 * interrupt when there is space available in the ring. This function is
1548 * called when the driver is unable to post more iocbs to the ring due
1549 * to unavailability of space in the ring.
1552 lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1554 int ringno = pring->ringno;
1556 pring->flag |= LPFC_CALL_RING_AVAILABLE;
1561 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1562 * The HBA will tell us when an IOCB entry is available.
1564 writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
1565 readl(phba->CAregaddr); /* flush */
1567 pring->stats.iocb_cmd_full++;
1571 * lpfc_sli_update_ring - Update chip attention register
1572 * @phba: Pointer to HBA context object.
1573 * @pring: Pointer to driver SLI ring object.
1575 * This function updates the chip attention register bit for the
1576 * given ring to inform HBA that there is more work to be done
1577 * in this ring. The caller is not required to hold any lock.
1580 lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1582 int ringno = pring->ringno;
1585 * Tell the HBA that there is work to do in this ring.
1587 if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
1589 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
1590 readl(phba->CAregaddr); /* flush */
1595 * lpfc_sli_resume_iocb - Process iocbs in the txq
1596 * @phba: Pointer to HBA context object.
1597 * @pring: Pointer to driver SLI ring object.
1599 * This function is called with hbalock held to post pending iocbs
1600 * in the txq to the firmware. This function is called when driver
1601 * detects space available in the ring.
1604 lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1607 struct lpfc_iocbq *nextiocb;
1611 * (a) there is anything on the txq to send
1613 * (c) link attention events can be processed (fcp ring only)
1614 * (d) IOCB processing is not blocked by the outstanding mbox command.
1616 if (pring->txq_cnt &&
1617 lpfc_is_link_up(phba) &&
1618 (pring->ringno != phba->sli.fcp_ring ||
1619 phba->sli.sli_flag & LPFC_PROCESS_LA)) {
1621 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
1622 (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
1623 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
1626 lpfc_sli_update_ring(phba, pring);
1628 lpfc_sli_update_full_ring(phba, pring);
1635 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
1636 * @phba: Pointer to HBA context object.
1637 * @hbqno: HBQ number.
1639 * This function is called with hbalock held to get the next
1640 * available slot for the given HBQ. If there is free slot
1641 * available for the HBQ it will return pointer to the next available
1642 * HBQ entry else it will return NULL.
1644 static struct lpfc_hbq_entry *
1645 lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
1647 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1649 if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
1650 ++hbqp->next_hbqPutIdx >= hbqp->entry_count)
1651 hbqp->next_hbqPutIdx = 0;
1653 if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
1654 uint32_t raw_index = phba->hbq_get[hbqno];
1655 uint32_t getidx = le32_to_cpu(raw_index);
1657 hbqp->local_hbqGetIdx = getidx;
1659 if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
1660 lpfc_printf_log(phba, KERN_ERR,
1661 LOG_SLI | LOG_VPORT,
1662 "1802 HBQ %d: local_hbqGetIdx "
1663 "%u is > than hbqp->entry_count %u\n",
1664 hbqno, hbqp->local_hbqGetIdx,
1667 phba->link_state = LPFC_HBA_ERROR;
1671 if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
1675 return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
1680 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
1681 * @phba: Pointer to HBA context object.
1683 * This function is called with no lock held to free all the
1684 * hbq buffers while uninitializing the SLI interface. It also
1685 * frees the HBQ buffers returned by the firmware but not yet
1686 * processed by the upper layers.
1689 lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
1691 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
1692 struct hbq_dmabuf *hbq_buf;
1693 unsigned long flags;
1697 hbq_count = lpfc_sli_hbq_count();
1698 /* Return all memory used by all HBQs */
1699 spin_lock_irqsave(&phba->hbalock, flags);
1700 for (i = 0; i < hbq_count; ++i) {
1701 list_for_each_entry_safe(dmabuf, next_dmabuf,
1702 &phba->hbqs[i].hbq_buffer_list, list) {
1703 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1704 list_del(&hbq_buf->dbuf.list);
1705 (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
1707 phba->hbqs[i].buffer_count = 0;
1709 /* Return all HBQ buffer that are in-fly */
1710 list_for_each_entry_safe(dmabuf, next_dmabuf, &phba->rb_pend_list,
1712 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1713 list_del(&hbq_buf->dbuf.list);
1714 if (hbq_buf->tag == -1) {
1715 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1718 hbqno = hbq_buf->tag >> 16;
1719 if (hbqno >= LPFC_MAX_HBQS)
1720 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1723 (phba->hbqs[hbqno].hbq_free_buffer)(phba,
1728 /* Mark the HBQs not in use */
1729 phba->hbq_in_use = 0;
1730 spin_unlock_irqrestore(&phba->hbalock, flags);
1734 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
1735 * @phba: Pointer to HBA context object.
1736 * @hbqno: HBQ number.
1737 * @hbq_buf: Pointer to HBQ buffer.
1739 * This function is called with the hbalock held to post a
1740 * hbq buffer to the firmware. If the function finds an empty
1741 * slot in the HBQ, it will post the buffer. The function will return
1742 * pointer to the hbq entry if it successfully post the buffer
1743 * else it will return NULL.
1746 lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
1747 struct hbq_dmabuf *hbq_buf)
1749 return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
1753 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
1754 * @phba: Pointer to HBA context object.
1755 * @hbqno: HBQ number.
1756 * @hbq_buf: Pointer to HBQ buffer.
1758 * This function is called with the hbalock held to post a hbq buffer to the
1759 * firmware. If the function finds an empty slot in the HBQ, it will post the
1760 * buffer and place it on the hbq_buffer_list. The function will return zero if
1761 * it successfully post the buffer else it will return an error.
1764 lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
1765 struct hbq_dmabuf *hbq_buf)
1767 struct lpfc_hbq_entry *hbqe;
1768 dma_addr_t physaddr = hbq_buf->dbuf.phys;
1770 /* Get next HBQ entry slot to use */
1771 hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
1773 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1775 hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
1776 hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
1777 hbqe->bde.tus.f.bdeSize = hbq_buf->size;
1778 hbqe->bde.tus.f.bdeFlags = 0;
1779 hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
1780 hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
1782 hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
1783 writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
1785 readl(phba->hbq_put + hbqno);
1786 list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
1793 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
1794 * @phba: Pointer to HBA context object.
1795 * @hbqno: HBQ number.
1796 * @hbq_buf: Pointer to HBQ buffer.
1798 * This function is called with the hbalock held to post an RQE to the SLI4
1799 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
1800 * the hbq_buffer_list and return zero, otherwise it will return an error.
1803 lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
1804 struct hbq_dmabuf *hbq_buf)
1807 struct lpfc_rqe hrqe;
1808 struct lpfc_rqe drqe;
1810 hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
1811 hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
1812 drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
1813 drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
1814 rc = lpfc_sli4_rq_put(phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
1819 list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
1823 /* HBQ for ELS and CT traffic. */
1824 static struct lpfc_hbq_init lpfc_els_hbq = {
1829 .ring_mask = (1 << LPFC_ELS_RING),
1835 /* HBQ for the extra ring if needed */
1836 static struct lpfc_hbq_init lpfc_extra_hbq = {
1841 .ring_mask = (1 << LPFC_EXTRA_RING),
1848 struct lpfc_hbq_init *lpfc_hbq_defs[] = {
1854 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
1855 * @phba: Pointer to HBA context object.
1856 * @hbqno: HBQ number.
1857 * @count: Number of HBQ buffers to be posted.
1859 * This function is called with no lock held to post more hbq buffers to the
1860 * given HBQ. The function returns the number of HBQ buffers successfully
1864 lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
1866 uint32_t i, posted = 0;
1867 unsigned long flags;
1868 struct hbq_dmabuf *hbq_buffer;
1869 LIST_HEAD(hbq_buf_list);
1870 if (!phba->hbqs[hbqno].hbq_alloc_buffer)
1873 if ((phba->hbqs[hbqno].buffer_count + count) >
1874 lpfc_hbq_defs[hbqno]->entry_count)
1875 count = lpfc_hbq_defs[hbqno]->entry_count -
1876 phba->hbqs[hbqno].buffer_count;
1879 /* Allocate HBQ entries */
1880 for (i = 0; i < count; i++) {
1881 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
1884 list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
1886 /* Check whether HBQ is still in use */
1887 spin_lock_irqsave(&phba->hbalock, flags);
1888 if (!phba->hbq_in_use)
1890 while (!list_empty(&hbq_buf_list)) {
1891 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1893 hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
1895 if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
1896 phba->hbqs[hbqno].buffer_count++;
1899 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1901 spin_unlock_irqrestore(&phba->hbalock, flags);
1904 spin_unlock_irqrestore(&phba->hbalock, flags);
1905 while (!list_empty(&hbq_buf_list)) {
1906 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1908 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1914 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
1915 * @phba: Pointer to HBA context object.
1918 * This function posts more buffers to the HBQ. This function
1919 * is called with no lock held. The function returns the number of HBQ entries
1920 * successfully allocated.
1923 lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
1925 if (phba->sli_rev == LPFC_SLI_REV4)
1928 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1929 lpfc_hbq_defs[qno]->add_count);
1933 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
1934 * @phba: Pointer to HBA context object.
1935 * @qno: HBQ queue number.
1937 * This function is called from SLI initialization code path with
1938 * no lock held to post initial HBQ buffers to firmware. The
1939 * function returns the number of HBQ entries successfully allocated.
1942 lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
1944 if (phba->sli_rev == LPFC_SLI_REV4)
1945 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1946 lpfc_hbq_defs[qno]->entry_count);
1948 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1949 lpfc_hbq_defs[qno]->init_count);
1953 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
1954 * @phba: Pointer to HBA context object.
1955 * @hbqno: HBQ number.
1957 * This function removes the first hbq buffer on an hbq list and returns a
1958 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
1960 static struct hbq_dmabuf *
1961 lpfc_sli_hbqbuf_get(struct list_head *rb_list)
1963 struct lpfc_dmabuf *d_buf;
1965 list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
1968 return container_of(d_buf, struct hbq_dmabuf, dbuf);
1972 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
1973 * @phba: Pointer to HBA context object.
1974 * @tag: Tag of the hbq buffer.
1976 * This function is called with hbalock held. This function searches
1977 * for the hbq buffer associated with the given tag in the hbq buffer
1978 * list. If it finds the hbq buffer, it returns the hbq_buffer other wise
1981 static struct hbq_dmabuf *
1982 lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
1984 struct lpfc_dmabuf *d_buf;
1985 struct hbq_dmabuf *hbq_buf;
1989 if (hbqno >= LPFC_MAX_HBQS)
1992 spin_lock_irq(&phba->hbalock);
1993 list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
1994 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
1995 if (hbq_buf->tag == tag) {
1996 spin_unlock_irq(&phba->hbalock);
2000 spin_unlock_irq(&phba->hbalock);
2001 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT,
2002 "1803 Bad hbq tag. Data: x%x x%x\n",
2003 tag, phba->hbqs[tag >> 16].buffer_count);
2008 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
2009 * @phba: Pointer to HBA context object.
2010 * @hbq_buffer: Pointer to HBQ buffer.
2012 * This function is called with hbalock. This function gives back
2013 * the hbq buffer to firmware. If the HBQ does not have space to
2014 * post the buffer, it will free the buffer.
2017 lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
2022 hbqno = hbq_buffer->tag >> 16;
2023 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
2024 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
2029 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
2030 * @mbxCommand: mailbox command code.
2032 * This function is called by the mailbox event handler function to verify
2033 * that the completed mailbox command is a legitimate mailbox command. If the
2034 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
2035 * and the mailbox event handler will take the HBA offline.
2038 lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
2042 switch (mbxCommand) {
2046 case MBX_WRITE_VPARMS:
2047 case MBX_RUN_BIU_DIAG:
2050 case MBX_CONFIG_LINK:
2051 case MBX_CONFIG_RING:
2052 case MBX_RESET_RING:
2053 case MBX_READ_CONFIG:
2054 case MBX_READ_RCONFIG:
2055 case MBX_READ_SPARM:
2056 case MBX_READ_STATUS:
2060 case MBX_READ_LNK_STAT:
2062 case MBX_UNREG_LOGIN:
2064 case MBX_DUMP_MEMORY:
2065 case MBX_DUMP_CONTEXT:
2068 case MBX_UPDATE_CFG:
2070 case MBX_DEL_LD_ENTRY:
2071 case MBX_RUN_PROGRAM:
2073 case MBX_SET_VARIABLE:
2074 case MBX_UNREG_D_ID:
2075 case MBX_KILL_BOARD:
2076 case MBX_CONFIG_FARP:
2079 case MBX_RUN_BIU_DIAG64:
2080 case MBX_CONFIG_PORT:
2081 case MBX_READ_SPARM64:
2082 case MBX_READ_RPI64:
2083 case MBX_REG_LOGIN64:
2084 case MBX_READ_TOPOLOGY:
2087 case MBX_LOAD_EXP_ROM:
2088 case MBX_ASYNCEVT_ENABLE:
2092 case MBX_PORT_CAPABILITIES:
2093 case MBX_PORT_IOV_CONTROL:
2094 case MBX_SLI4_CONFIG:
2095 case MBX_SLI4_REQ_FTRS:
2097 case MBX_UNREG_FCFI:
2102 case MBX_RESUME_RPI:
2103 case MBX_READ_EVENT_LOG_STATUS:
2104 case MBX_READ_EVENT_LOG:
2105 case MBX_SECURITY_MGMT:
2107 case MBX_ACCESS_VDATA:
2118 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
2119 * @phba: Pointer to HBA context object.
2120 * @pmboxq: Pointer to mailbox command.
2122 * This is completion handler function for mailbox commands issued from
2123 * lpfc_sli_issue_mbox_wait function. This function is called by the
2124 * mailbox event handler function with no lock held. This function
2125 * will wake up thread waiting on the wait queue pointed by context1
2129 lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
2131 wait_queue_head_t *pdone_q;
2132 unsigned long drvr_flag;
2135 * If pdone_q is empty, the driver thread gave up waiting and
2136 * continued running.
2138 pmboxq->mbox_flag |= LPFC_MBX_WAKE;
2139 spin_lock_irqsave(&phba->hbalock, drvr_flag);
2140 pdone_q = (wait_queue_head_t *) pmboxq->context1;
2142 wake_up_interruptible(pdone_q);
2143 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
2149 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
2150 * @phba: Pointer to HBA context object.
2151 * @pmb: Pointer to mailbox object.
2153 * This function is the default mailbox completion handler. It
2154 * frees the memory resources associated with the completed mailbox
2155 * command. If the completed command is a REG_LOGIN mailbox command,
2156 * this function will issue a UREG_LOGIN to re-claim the RPI.
2159 lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2161 struct lpfc_vport *vport = pmb->vport;
2162 struct lpfc_dmabuf *mp;
2163 struct lpfc_nodelist *ndlp;
2164 struct Scsi_Host *shost;
2168 mp = (struct lpfc_dmabuf *) (pmb->context1);
2171 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2176 * If a REG_LOGIN succeeded after node is destroyed or node
2177 * is in re-discovery driver need to cleanup the RPI.
2179 if (!(phba->pport->load_flag & FC_UNLOADING) &&
2180 pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
2181 !pmb->u.mb.mbxStatus) {
2182 rpi = pmb->u.mb.un.varWords[0];
2183 vpi = pmb->u.mb.un.varRegLogin.vpi;
2184 lpfc_unreg_login(phba, vpi, rpi, pmb);
2185 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2186 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2187 if (rc != MBX_NOT_FINISHED)
2191 if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) &&
2192 !(phba->pport->load_flag & FC_UNLOADING) &&
2193 !pmb->u.mb.mbxStatus) {
2194 shost = lpfc_shost_from_vport(vport);
2195 spin_lock_irq(shost->host_lock);
2196 vport->vpi_state |= LPFC_VPI_REGISTERED;
2197 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
2198 spin_unlock_irq(shost->host_lock);
2201 if (pmb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
2202 ndlp = (struct lpfc_nodelist *)pmb->context2;
2204 pmb->context2 = NULL;
2207 /* Check security permission status on INIT_LINK mailbox command */
2208 if ((pmb->u.mb.mbxCommand == MBX_INIT_LINK) &&
2209 (pmb->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
2210 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2211 "2860 SLI authentication is required "
2212 "for INIT_LINK but has not done yet\n");
2214 if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
2215 lpfc_sli4_mbox_cmd_free(phba, pmb);
2217 mempool_free(pmb, phba->mbox_mem_pool);
2221 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
2222 * @phba: Pointer to HBA context object.
2224 * This function is called with no lock held. This function processes all
2225 * the completed mailbox commands and gives it to upper layers. The interrupt
2226 * service routine processes mailbox completion interrupt and adds completed
2227 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
2228 * Worker thread call lpfc_sli_handle_mb_event, which will return the
2229 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
2230 * function returns the mailbox commands to the upper layer by calling the
2231 * completion handler function of each mailbox.
2234 lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
2241 phba->sli.slistat.mbox_event++;
2243 /* Get all completed mailboxe buffers into the cmplq */
2244 spin_lock_irq(&phba->hbalock);
2245 list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
2246 spin_unlock_irq(&phba->hbalock);
2248 /* Get a Mailbox buffer to setup mailbox commands for callback */
2250 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
2256 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
2258 lpfc_debugfs_disc_trc(pmb->vport,
2259 LPFC_DISC_TRC_MBOX_VPORT,
2260 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
2261 (uint32_t)pmbox->mbxCommand,
2262 pmbox->un.varWords[0],
2263 pmbox->un.varWords[1]);
2266 lpfc_debugfs_disc_trc(phba->pport,
2268 "MBOX cmpl: cmd:x%x mb:x%x x%x",
2269 (uint32_t)pmbox->mbxCommand,
2270 pmbox->un.varWords[0],
2271 pmbox->un.varWords[1]);
2276 * It is a fatal error if unknown mbox command completion.
2278 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
2280 /* Unknown mailbox command compl */
2281 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2282 "(%d):0323 Unknown Mailbox command "
2283 "x%x (x%x/x%x) Cmpl\n",
2284 pmb->vport ? pmb->vport->vpi : 0,
2286 lpfc_sli_config_mbox_subsys_get(phba,
2288 lpfc_sli_config_mbox_opcode_get(phba,
2290 phba->link_state = LPFC_HBA_ERROR;
2291 phba->work_hs = HS_FFER3;
2292 lpfc_handle_eratt(phba);
2296 if (pmbox->mbxStatus) {
2297 phba->sli.slistat.mbox_stat_err++;
2298 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
2299 /* Mbox cmd cmpl error - RETRYing */
2300 lpfc_printf_log(phba, KERN_INFO,
2302 "(%d):0305 Mbox cmd cmpl "
2303 "error - RETRYing Data: x%x "
2304 "(x%x/x%x) x%x x%x x%x\n",
2305 pmb->vport ? pmb->vport->vpi : 0,
2307 lpfc_sli_config_mbox_subsys_get(phba,
2309 lpfc_sli_config_mbox_opcode_get(phba,
2312 pmbox->un.varWords[0],
2313 pmb->vport->port_state);
2314 pmbox->mbxStatus = 0;
2315 pmbox->mbxOwner = OWN_HOST;
2316 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2317 if (rc != MBX_NOT_FINISHED)
2322 /* Mailbox cmd <cmd> Cmpl <cmpl> */
2323 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
2324 "(%d):0307 Mailbox cmd x%x (x%x/x%x) Cmpl x%p "
2325 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n",
2326 pmb->vport ? pmb->vport->vpi : 0,
2328 lpfc_sli_config_mbox_subsys_get(phba, pmb),
2329 lpfc_sli_config_mbox_opcode_get(phba, pmb),
2331 *((uint32_t *) pmbox),
2332 pmbox->un.varWords[0],
2333 pmbox->un.varWords[1],
2334 pmbox->un.varWords[2],
2335 pmbox->un.varWords[3],
2336 pmbox->un.varWords[4],
2337 pmbox->un.varWords[5],
2338 pmbox->un.varWords[6],
2339 pmbox->un.varWords[7]);
2342 pmb->mbox_cmpl(phba,pmb);
2348 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
2349 * @phba: Pointer to HBA context object.
2350 * @pring: Pointer to driver SLI ring object.
2353 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
2354 * is set in the tag the buffer is posted for a particular exchange,
2355 * the function will return the buffer without replacing the buffer.
2356 * If the buffer is for unsolicited ELS or CT traffic, this function
2357 * returns the buffer and also posts another buffer to the firmware.
2359 static struct lpfc_dmabuf *
2360 lpfc_sli_get_buff(struct lpfc_hba *phba,
2361 struct lpfc_sli_ring *pring,
2364 struct hbq_dmabuf *hbq_entry;
2366 if (tag & QUE_BUFTAG_BIT)
2367 return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
2368 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
2371 return &hbq_entry->dbuf;
2375 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
2376 * @phba: Pointer to HBA context object.
2377 * @pring: Pointer to driver SLI ring object.
2378 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
2379 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
2380 * @fch_type: the type for the first frame of the sequence.
2382 * This function is called with no lock held. This function uses the r_ctl and
2383 * type of the received sequence to find the correct callback function to call
2384 * to process the sequence.
2387 lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2388 struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
2393 /* unSolicited Responses */
2394 if (pring->prt[0].profile) {
2395 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
2396 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
2400 /* We must search, based on rctl / type
2401 for the right routine */
2402 for (i = 0; i < pring->num_mask; i++) {
2403 if ((pring->prt[i].rctl == fch_r_ctl) &&
2404 (pring->prt[i].type == fch_type)) {
2405 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
2406 (pring->prt[i].lpfc_sli_rcv_unsol_event)
2407 (phba, pring, saveq);
2415 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
2416 * @phba: Pointer to HBA context object.
2417 * @pring: Pointer to driver SLI ring object.
2418 * @saveq: Pointer to the unsolicited iocb.
2420 * This function is called with no lock held by the ring event handler
2421 * when there is an unsolicited iocb posted to the response ring by the
2422 * firmware. This function gets the buffer associated with the iocbs
2423 * and calls the event handler for the ring. This function handles both
2424 * qring buffers and hbq buffers.
2425 * When the function returns 1 the caller can free the iocb object otherwise
2426 * upper layer functions will free the iocb objects.
2429 lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2430 struct lpfc_iocbq *saveq)
2434 uint32_t Rctl, Type;
2436 struct lpfc_iocbq *iocbq;
2437 struct lpfc_dmabuf *dmzbuf;
2440 irsp = &(saveq->iocb);
2442 if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
2443 if (pring->lpfc_sli_rcv_async_status)
2444 pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
2446 lpfc_printf_log(phba,
2449 "0316 Ring %d handler: unexpected "
2450 "ASYNC_STATUS iocb received evt_code "
2453 irsp->un.asyncstat.evt_code);
2457 if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
2458 (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
2459 if (irsp->ulpBdeCount > 0) {
2460 dmzbuf = lpfc_sli_get_buff(phba, pring,
2461 irsp->un.ulpWord[3]);
2462 lpfc_in_buf_free(phba, dmzbuf);
2465 if (irsp->ulpBdeCount > 1) {
2466 dmzbuf = lpfc_sli_get_buff(phba, pring,
2467 irsp->unsli3.sli3Words[3]);
2468 lpfc_in_buf_free(phba, dmzbuf);
2471 if (irsp->ulpBdeCount > 2) {
2472 dmzbuf = lpfc_sli_get_buff(phba, pring,
2473 irsp->unsli3.sli3Words[7]);
2474 lpfc_in_buf_free(phba, dmzbuf);
2480 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
2481 if (irsp->ulpBdeCount != 0) {
2482 saveq->context2 = lpfc_sli_get_buff(phba, pring,
2483 irsp->un.ulpWord[3]);
2484 if (!saveq->context2)
2485 lpfc_printf_log(phba,
2488 "0341 Ring %d Cannot find buffer for "
2489 "an unsolicited iocb. tag 0x%x\n",
2491 irsp->un.ulpWord[3]);
2493 if (irsp->ulpBdeCount == 2) {
2494 saveq->context3 = lpfc_sli_get_buff(phba, pring,
2495 irsp->unsli3.sli3Words[7]);
2496 if (!saveq->context3)
2497 lpfc_printf_log(phba,
2500 "0342 Ring %d Cannot find buffer for an"
2501 " unsolicited iocb. tag 0x%x\n",
2503 irsp->unsli3.sli3Words[7]);
2505 list_for_each_entry(iocbq, &saveq->list, list) {
2506 irsp = &(iocbq->iocb);
2507 if (irsp->ulpBdeCount != 0) {
2508 iocbq->context2 = lpfc_sli_get_buff(phba, pring,
2509 irsp->un.ulpWord[3]);
2510 if (!iocbq->context2)
2511 lpfc_printf_log(phba,
2514 "0343 Ring %d Cannot find "
2515 "buffer for an unsolicited iocb"
2516 ". tag 0x%x\n", pring->ringno,
2517 irsp->un.ulpWord[3]);
2519 if (irsp->ulpBdeCount == 2) {
2520 iocbq->context3 = lpfc_sli_get_buff(phba, pring,
2521 irsp->unsli3.sli3Words[7]);
2522 if (!iocbq->context3)
2523 lpfc_printf_log(phba,
2526 "0344 Ring %d Cannot find "
2527 "buffer for an unsolicited "
2530 irsp->unsli3.sli3Words[7]);
2534 if (irsp->ulpBdeCount != 0 &&
2535 (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
2536 irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
2539 /* search continue save q for same XRI */
2540 list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
2541 if (iocbq->iocb.unsli3.rcvsli3.ox_id ==
2542 saveq->iocb.unsli3.rcvsli3.ox_id) {
2543 list_add_tail(&saveq->list, &iocbq->list);
2549 list_add_tail(&saveq->clist,
2550 &pring->iocb_continue_saveq);
2551 if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
2552 list_del_init(&iocbq->clist);
2554 irsp = &(saveq->iocb);
2558 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
2559 (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
2560 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
2561 Rctl = FC_RCTL_ELS_REQ;
2564 w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
2565 Rctl = w5p->hcsw.Rctl;
2566 Type = w5p->hcsw.Type;
2568 /* Firmware Workaround */
2569 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
2570 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
2571 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
2572 Rctl = FC_RCTL_ELS_REQ;
2574 w5p->hcsw.Rctl = Rctl;
2575 w5p->hcsw.Type = Type;
2579 if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
2580 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2581 "0313 Ring %d handler: unexpected Rctl x%x "
2582 "Type x%x received\n",
2583 pring->ringno, Rctl, Type);
2589 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
2590 * @phba: Pointer to HBA context object.
2591 * @pring: Pointer to driver SLI ring object.
2592 * @prspiocb: Pointer to response iocb object.
2594 * This function looks up the iocb_lookup table to get the command iocb
2595 * corresponding to the given response iocb using the iotag of the
2596 * response iocb. This function is called with the hbalock held.
2597 * This function returns the command iocb object if it finds the command
2598 * iocb else returns NULL.
2600 static struct lpfc_iocbq *
2601 lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
2602 struct lpfc_sli_ring *pring,
2603 struct lpfc_iocbq *prspiocb)
2605 struct lpfc_iocbq *cmd_iocb = NULL;
2608 iotag = prspiocb->iocb.ulpIoTag;
2610 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2611 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2612 list_del_init(&cmd_iocb->list);
2613 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
2614 pring->txcmplq_cnt--;
2615 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
2620 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2621 "0317 iotag x%x is out off "
2622 "range: max iotag x%x wd0 x%x\n",
2623 iotag, phba->sli.last_iotag,
2624 *(((uint32_t *) &prspiocb->iocb) + 7));
2629 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2630 * @phba: Pointer to HBA context object.
2631 * @pring: Pointer to driver SLI ring object.
2634 * This function looks up the iocb_lookup table to get the command iocb
2635 * corresponding to the given iotag. This function is called with the
2637 * This function returns the command iocb object if it finds the command
2638 * iocb else returns NULL.
2640 static struct lpfc_iocbq *
2641 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
2642 struct lpfc_sli_ring *pring, uint16_t iotag)
2644 struct lpfc_iocbq *cmd_iocb;
2646 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2647 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2648 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
2649 /* remove from txcmpl queue list */
2650 list_del_init(&cmd_iocb->list);
2651 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
2652 pring->txcmplq_cnt--;
2656 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2657 "0372 iotag x%x is out off range: max iotag (x%x)\n",
2658 iotag, phba->sli.last_iotag);
2663 * lpfc_sli_process_sol_iocb - process solicited iocb completion
2664 * @phba: Pointer to HBA context object.
2665 * @pring: Pointer to driver SLI ring object.
2666 * @saveq: Pointer to the response iocb to be processed.
2668 * This function is called by the ring event handler for non-fcp
2669 * rings when there is a new response iocb in the response ring.
2670 * The caller is not required to hold any locks. This function
2671 * gets the command iocb associated with the response iocb and
2672 * calls the completion handler for the command iocb. If there
2673 * is no completion handler, the function will free the resources
2674 * associated with command iocb. If the response iocb is for
2675 * an already aborted command iocb, the status of the completion
2676 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
2677 * This function always returns 1.
2680 lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2681 struct lpfc_iocbq *saveq)
2683 struct lpfc_iocbq *cmdiocbp;
2685 unsigned long iflag;
2687 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
2688 spin_lock_irqsave(&phba->hbalock, iflag);
2689 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
2690 spin_unlock_irqrestore(&phba->hbalock, iflag);
2693 if (cmdiocbp->iocb_cmpl) {
2695 * If an ELS command failed send an event to mgmt
2698 if (saveq->iocb.ulpStatus &&
2699 (pring->ringno == LPFC_ELS_RING) &&
2700 (cmdiocbp->iocb.ulpCommand ==
2701 CMD_ELS_REQUEST64_CR))
2702 lpfc_send_els_failure_event(phba,
2706 * Post all ELS completions to the worker thread.
2707 * All other are passed to the completion callback.
2709 if (pring->ringno == LPFC_ELS_RING) {
2710 if ((phba->sli_rev < LPFC_SLI_REV4) &&
2711 (cmdiocbp->iocb_flag &
2712 LPFC_DRIVER_ABORTED)) {
2713 spin_lock_irqsave(&phba->hbalock,
2715 cmdiocbp->iocb_flag &=
2716 ~LPFC_DRIVER_ABORTED;
2717 spin_unlock_irqrestore(&phba->hbalock,
2719 saveq->iocb.ulpStatus =
2720 IOSTAT_LOCAL_REJECT;
2721 saveq->iocb.un.ulpWord[4] =
2724 /* Firmware could still be in progress
2725 * of DMAing payload, so don't free data
2726 * buffer till after a hbeat.
2728 spin_lock_irqsave(&phba->hbalock,
2730 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
2731 spin_unlock_irqrestore(&phba->hbalock,
2734 if (phba->sli_rev == LPFC_SLI_REV4) {
2735 if (saveq->iocb_flag &
2736 LPFC_EXCHANGE_BUSY) {
2737 /* Set cmdiocb flag for the
2738 * exchange busy so sgl (xri)
2739 * will not be released until
2740 * the abort xri is received
2744 &phba->hbalock, iflag);
2745 cmdiocbp->iocb_flag |=
2747 spin_unlock_irqrestore(
2748 &phba->hbalock, iflag);
2750 if (cmdiocbp->iocb_flag &
2751 LPFC_DRIVER_ABORTED) {
2753 * Clear LPFC_DRIVER_ABORTED
2754 * bit in case it was driver
2758 &phba->hbalock, iflag);
2759 cmdiocbp->iocb_flag &=
2760 ~LPFC_DRIVER_ABORTED;
2761 spin_unlock_irqrestore(
2762 &phba->hbalock, iflag);
2763 cmdiocbp->iocb.ulpStatus =
2764 IOSTAT_LOCAL_REJECT;
2765 cmdiocbp->iocb.un.ulpWord[4] =
2766 IOERR_ABORT_REQUESTED;
2768 * For SLI4, irsiocb contains
2769 * NO_XRI in sli_xritag, it
2770 * shall not affect releasing
2771 * sgl (xri) process.
2773 saveq->iocb.ulpStatus =
2774 IOSTAT_LOCAL_REJECT;
2775 saveq->iocb.un.ulpWord[4] =
2778 &phba->hbalock, iflag);
2780 LPFC_DELAY_MEM_FREE;
2781 spin_unlock_irqrestore(
2782 &phba->hbalock, iflag);
2786 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
2788 lpfc_sli_release_iocbq(phba, cmdiocbp);
2791 * Unknown initiating command based on the response iotag.
2792 * This could be the case on the ELS ring because of
2795 if (pring->ringno != LPFC_ELS_RING) {
2797 * Ring <ringno> handler: unexpected completion IoTag
2800 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2801 "0322 Ring %d handler: "
2802 "unexpected completion IoTag x%x "
2803 "Data: x%x x%x x%x x%x\n",
2805 saveq->iocb.ulpIoTag,
2806 saveq->iocb.ulpStatus,
2807 saveq->iocb.un.ulpWord[4],
2808 saveq->iocb.ulpCommand,
2809 saveq->iocb.ulpContext);
2817 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
2818 * @phba: Pointer to HBA context object.
2819 * @pring: Pointer to driver SLI ring object.
2821 * This function is called from the iocb ring event handlers when
2822 * put pointer is ahead of the get pointer for a ring. This function signal
2823 * an error attention condition to the worker thread and the worker
2824 * thread will transition the HBA to offline state.
2827 lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
2829 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2831 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
2832 * rsp ring <portRspMax>
2834 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2835 "0312 Ring %d handler: portRspPut %d "
2836 "is bigger than rsp ring %d\n",
2837 pring->ringno, le32_to_cpu(pgp->rspPutInx),
2838 pring->sli.sli3.numRiocb);
2840 phba->link_state = LPFC_HBA_ERROR;
2843 * All error attention handlers are posted to
2846 phba->work_ha |= HA_ERATT;
2847 phba->work_hs = HS_FFER3;
2849 lpfc_worker_wake_up(phba);
2855 * lpfc_poll_eratt - Error attention polling timer timeout handler
2856 * @ptr: Pointer to address of HBA context object.
2858 * This function is invoked by the Error Attention polling timer when the
2859 * timer times out. It will check the SLI Error Attention register for
2860 * possible attention events. If so, it will post an Error Attention event
2861 * and wake up worker thread to process it. Otherwise, it will set up the
2862 * Error Attention polling timer for the next poll.
2864 void lpfc_poll_eratt(unsigned long ptr)
2866 struct lpfc_hba *phba;
2867 uint32_t eratt = 0, rem;
2868 uint64_t sli_intr, cnt;
2870 phba = (struct lpfc_hba *)ptr;
2872 /* Here we will also keep track of interrupts per sec of the hba */
2873 sli_intr = phba->sli.slistat.sli_intr;
2875 if (phba->sli.slistat.sli_prev_intr > sli_intr)
2876 cnt = (((uint64_t)(-1) - phba->sli.slistat.sli_prev_intr) +
2879 cnt = (sli_intr - phba->sli.slistat.sli_prev_intr);
2881 /* 64-bit integer division not supporte on 32-bit x86 - use do_div */
2882 rem = do_div(cnt, LPFC_ERATT_POLL_INTERVAL);
2883 phba->sli.slistat.sli_ips = cnt;
2885 phba->sli.slistat.sli_prev_intr = sli_intr;
2887 /* Check chip HA register for error event */
2888 eratt = lpfc_sli_check_eratt(phba);
2891 /* Tell the worker thread there is work to do */
2892 lpfc_worker_wake_up(phba);
2894 /* Restart the timer for next eratt poll */
2895 mod_timer(&phba->eratt_poll, jiffies +
2896 HZ * LPFC_ERATT_POLL_INTERVAL);
2902 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
2903 * @phba: Pointer to HBA context object.
2904 * @pring: Pointer to driver SLI ring object.
2905 * @mask: Host attention register mask for this ring.
2907 * This function is called from the interrupt context when there is a ring
2908 * event for the fcp ring. The caller does not hold any lock.
2909 * The function processes each response iocb in the response ring until it
2910 * finds an iocb with LE bit set and chains all the iocbs up to the iocb with
2911 * LE bit set. The function will call the completion handler of the command iocb
2912 * if the response iocb indicates a completion for a command iocb or it is
2913 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
2914 * function if this is an unsolicited iocb.
2915 * This routine presumes LPFC_FCP_RING handling and doesn't bother
2916 * to check it explicitly.
2919 lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
2920 struct lpfc_sli_ring *pring, uint32_t mask)
2922 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2923 IOCB_t *irsp = NULL;
2924 IOCB_t *entry = NULL;
2925 struct lpfc_iocbq *cmdiocbq = NULL;
2926 struct lpfc_iocbq rspiocbq;
2928 uint32_t portRspPut, portRspMax;
2930 lpfc_iocb_type type;
2931 unsigned long iflag;
2932 uint32_t rsp_cmpl = 0;
2934 spin_lock_irqsave(&phba->hbalock, iflag);
2935 pring->stats.iocb_event++;
2938 * The next available response entry should never exceed the maximum
2939 * entries. If it does, treat it as an adapter hardware error.
2941 portRspMax = pring->sli.sli3.numRiocb;
2942 portRspPut = le32_to_cpu(pgp->rspPutInx);
2943 if (unlikely(portRspPut >= portRspMax)) {
2944 lpfc_sli_rsp_pointers_error(phba, pring);
2945 spin_unlock_irqrestore(&phba->hbalock, iflag);
2948 if (phba->fcp_ring_in_use) {
2949 spin_unlock_irqrestore(&phba->hbalock, iflag);
2952 phba->fcp_ring_in_use = 1;
2955 while (pring->sli.sli3.rspidx != portRspPut) {
2957 * Fetch an entry off the ring and copy it into a local data
2958 * structure. The copy involves a byte-swap since the
2959 * network byte order and pci byte orders are different.
2961 entry = lpfc_resp_iocb(phba, pring);
2962 phba->last_completion_time = jiffies;
2964 if (++pring->sli.sli3.rspidx >= portRspMax)
2965 pring->sli.sli3.rspidx = 0;
2967 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
2968 (uint32_t *) &rspiocbq.iocb,
2969 phba->iocb_rsp_size);
2970 INIT_LIST_HEAD(&(rspiocbq.list));
2971 irsp = &rspiocbq.iocb;
2973 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
2974 pring->stats.iocb_rsp++;
2977 if (unlikely(irsp->ulpStatus)) {
2979 * If resource errors reported from HBA, reduce
2980 * queuedepths of the SCSI device.
2982 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
2983 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
2984 IOERR_NO_RESOURCES)) {
2985 spin_unlock_irqrestore(&phba->hbalock, iflag);
2986 phba->lpfc_rampdown_queue_depth(phba);
2987 spin_lock_irqsave(&phba->hbalock, iflag);
2990 /* Rsp ring <ringno> error: IOCB */
2991 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2992 "0336 Rsp Ring %d error: IOCB Data: "
2993 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
2995 irsp->un.ulpWord[0],
2996 irsp->un.ulpWord[1],
2997 irsp->un.ulpWord[2],
2998 irsp->un.ulpWord[3],
2999 irsp->un.ulpWord[4],
3000 irsp->un.ulpWord[5],
3001 *(uint32_t *)&irsp->un1,
3002 *((uint32_t *)&irsp->un1 + 1));
3006 case LPFC_ABORT_IOCB:
3009 * Idle exchange closed via ABTS from port. No iocb
3010 * resources need to be recovered.
3012 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
3013 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3014 "0333 IOCB cmd 0x%x"
3015 " processed. Skipping"
3021 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
3023 if (unlikely(!cmdiocbq))
3025 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED)
3026 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
3027 if (cmdiocbq->iocb_cmpl) {
3028 spin_unlock_irqrestore(&phba->hbalock, iflag);
3029 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
3031 spin_lock_irqsave(&phba->hbalock, iflag);
3034 case LPFC_UNSOL_IOCB:
3035 spin_unlock_irqrestore(&phba->hbalock, iflag);
3036 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
3037 spin_lock_irqsave(&phba->hbalock, iflag);
3040 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3041 char adaptermsg[LPFC_MAX_ADPTMSG];
3042 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3043 memcpy(&adaptermsg[0], (uint8_t *) irsp,
3045 dev_warn(&((phba->pcidev)->dev),
3047 phba->brd_no, adaptermsg);
3049 /* Unknown IOCB command */
3050 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3051 "0334 Unknown IOCB command "
3052 "Data: x%x, x%x x%x x%x x%x\n",
3053 type, irsp->ulpCommand,
3062 * The response IOCB has been processed. Update the ring
3063 * pointer in SLIM. If the port response put pointer has not
3064 * been updated, sync the pgp->rspPutInx and fetch the new port
3065 * response put pointer.
3067 writel(pring->sli.sli3.rspidx,
3068 &phba->host_gp[pring->ringno].rspGetInx);
3070 if (pring->sli.sli3.rspidx == portRspPut)
3071 portRspPut = le32_to_cpu(pgp->rspPutInx);
3074 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
3075 pring->stats.iocb_rsp_full++;
3076 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3077 writel(status, phba->CAregaddr);
3078 readl(phba->CAregaddr);
3080 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3081 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3082 pring->stats.iocb_cmd_empty++;
3084 /* Force update of the local copy of cmdGetInx */
3085 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3086 lpfc_sli_resume_iocb(phba, pring);
3088 if ((pring->lpfc_sli_cmd_available))
3089 (pring->lpfc_sli_cmd_available) (phba, pring);
3093 phba->fcp_ring_in_use = 0;
3094 spin_unlock_irqrestore(&phba->hbalock, iflag);
3099 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
3100 * @phba: Pointer to HBA context object.
3101 * @pring: Pointer to driver SLI ring object.
3102 * @rspiocbp: Pointer to driver response IOCB object.
3104 * This function is called from the worker thread when there is a slow-path
3105 * response IOCB to process. This function chains all the response iocbs until
3106 * seeing the iocb with the LE bit set. The function will call
3107 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
3108 * completion of a command iocb. The function will call the
3109 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
3110 * The function frees the resources or calls the completion handler if this
3111 * iocb is an abort completion. The function returns NULL when the response
3112 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
3113 * this function shall chain the iocb on to the iocb_continueq and return the
3114 * response iocb passed in.
3116 static struct lpfc_iocbq *
3117 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3118 struct lpfc_iocbq *rspiocbp)
3120 struct lpfc_iocbq *saveq;
3121 struct lpfc_iocbq *cmdiocbp;
3122 struct lpfc_iocbq *next_iocb;
3123 IOCB_t *irsp = NULL;
3124 uint32_t free_saveq;
3125 uint8_t iocb_cmd_type;
3126 lpfc_iocb_type type;
3127 unsigned long iflag;
3130 spin_lock_irqsave(&phba->hbalock, iflag);
3131 /* First add the response iocb to the countinueq list */
3132 list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
3133 pring->iocb_continueq_cnt++;
3135 /* Now, determine whether the list is completed for processing */
3136 irsp = &rspiocbp->iocb;
3139 * By default, the driver expects to free all resources
3140 * associated with this iocb completion.
3143 saveq = list_get_first(&pring->iocb_continueq,
3144 struct lpfc_iocbq, list);
3145 irsp = &(saveq->iocb);
3146 list_del_init(&pring->iocb_continueq);
3147 pring->iocb_continueq_cnt = 0;
3149 pring->stats.iocb_rsp++;
3152 * If resource errors reported from HBA, reduce
3153 * queuedepths of the SCSI device.
3155 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3156 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3157 IOERR_NO_RESOURCES)) {
3158 spin_unlock_irqrestore(&phba->hbalock, iflag);
3159 phba->lpfc_rampdown_queue_depth(phba);
3160 spin_lock_irqsave(&phba->hbalock, iflag);
3163 if (irsp->ulpStatus) {
3164 /* Rsp ring <ringno> error: IOCB */
3165 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3166 "0328 Rsp Ring %d error: "
3171 "x%x x%x x%x x%x\n",
3173 irsp->un.ulpWord[0],
3174 irsp->un.ulpWord[1],
3175 irsp->un.ulpWord[2],
3176 irsp->un.ulpWord[3],
3177 irsp->un.ulpWord[4],
3178 irsp->un.ulpWord[5],
3179 *(((uint32_t *) irsp) + 6),
3180 *(((uint32_t *) irsp) + 7),
3181 *(((uint32_t *) irsp) + 8),
3182 *(((uint32_t *) irsp) + 9),
3183 *(((uint32_t *) irsp) + 10),
3184 *(((uint32_t *) irsp) + 11),
3185 *(((uint32_t *) irsp) + 12),
3186 *(((uint32_t *) irsp) + 13),
3187 *(((uint32_t *) irsp) + 14),
3188 *(((uint32_t *) irsp) + 15));
3192 * Fetch the IOCB command type and call the correct completion
3193 * routine. Solicited and Unsolicited IOCBs on the ELS ring
3194 * get freed back to the lpfc_iocb_list by the discovery
3197 iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
3198 type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
3201 spin_unlock_irqrestore(&phba->hbalock, iflag);
3202 rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
3203 spin_lock_irqsave(&phba->hbalock, iflag);
3206 case LPFC_UNSOL_IOCB:
3207 spin_unlock_irqrestore(&phba->hbalock, iflag);
3208 rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
3209 spin_lock_irqsave(&phba->hbalock, iflag);
3214 case LPFC_ABORT_IOCB:
3216 if (irsp->ulpCommand != CMD_XRI_ABORTED_CX)
3217 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
3220 /* Call the specified completion routine */
3221 if (cmdiocbp->iocb_cmpl) {
3222 spin_unlock_irqrestore(&phba->hbalock,
3224 (cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
3226 spin_lock_irqsave(&phba->hbalock,
3229 __lpfc_sli_release_iocbq(phba,
3234 case LPFC_UNKNOWN_IOCB:
3235 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3236 char adaptermsg[LPFC_MAX_ADPTMSG];
3237 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3238 memcpy(&adaptermsg[0], (uint8_t *)irsp,
3240 dev_warn(&((phba->pcidev)->dev),
3242 phba->brd_no, adaptermsg);
3244 /* Unknown IOCB command */
3245 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3246 "0335 Unknown IOCB "
3247 "command Data: x%x "
3258 list_for_each_entry_safe(rspiocbp, next_iocb,
3259 &saveq->list, list) {
3260 list_del(&rspiocbp->list);
3261 __lpfc_sli_release_iocbq(phba, rspiocbp);
3263 __lpfc_sli_release_iocbq(phba, saveq);
3267 spin_unlock_irqrestore(&phba->hbalock, iflag);
3272 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
3273 * @phba: Pointer to HBA context object.
3274 * @pring: Pointer to driver SLI ring object.
3275 * @mask: Host attention register mask for this ring.
3277 * This routine wraps the actual slow_ring event process routine from the
3278 * API jump table function pointer from the lpfc_hba struct.
3281 lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
3282 struct lpfc_sli_ring *pring, uint32_t mask)
3284 phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
3288 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
3289 * @phba: Pointer to HBA context object.
3290 * @pring: Pointer to driver SLI ring object.
3291 * @mask: Host attention register mask for this ring.
3293 * This function is called from the worker thread when there is a ring event
3294 * for non-fcp rings. The caller does not hold any lock. The function will
3295 * remove each response iocb in the response ring and calls the handle
3296 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3299 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
3300 struct lpfc_sli_ring *pring, uint32_t mask)
3302 struct lpfc_pgp *pgp;
3304 IOCB_t *irsp = NULL;
3305 struct lpfc_iocbq *rspiocbp = NULL;
3306 uint32_t portRspPut, portRspMax;
3307 unsigned long iflag;
3310 pgp = &phba->port_gp[pring->ringno];
3311 spin_lock_irqsave(&phba->hbalock, iflag);
3312 pring->stats.iocb_event++;
3315 * The next available response entry should never exceed the maximum
3316 * entries. If it does, treat it as an adapter hardware error.
3318 portRspMax = pring->sli.sli3.numRiocb;
3319 portRspPut = le32_to_cpu(pgp->rspPutInx);
3320 if (portRspPut >= portRspMax) {
3322 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
3323 * rsp ring <portRspMax>
3325 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3326 "0303 Ring %d handler: portRspPut %d "
3327 "is bigger than rsp ring %d\n",
3328 pring->ringno, portRspPut, portRspMax);
3330 phba->link_state = LPFC_HBA_ERROR;
3331 spin_unlock_irqrestore(&phba->hbalock, iflag);
3333 phba->work_hs = HS_FFER3;
3334 lpfc_handle_eratt(phba);
3340 while (pring->sli.sli3.rspidx != portRspPut) {
3342 * Build a completion list and call the appropriate handler.
3343 * The process is to get the next available response iocb, get
3344 * a free iocb from the list, copy the response data into the
3345 * free iocb, insert to the continuation list, and update the
3346 * next response index to slim. This process makes response
3347 * iocb's in the ring available to DMA as fast as possible but
3348 * pays a penalty for a copy operation. Since the iocb is
3349 * only 32 bytes, this penalty is considered small relative to
3350 * the PCI reads for register values and a slim write. When
3351 * the ulpLe field is set, the entire Command has been
3354 entry = lpfc_resp_iocb(phba, pring);
3356 phba->last_completion_time = jiffies;
3357 rspiocbp = __lpfc_sli_get_iocbq(phba);
3358 if (rspiocbp == NULL) {
3359 printk(KERN_ERR "%s: out of buffers! Failing "
3360 "completion.\n", __func__);
3364 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
3365 phba->iocb_rsp_size);
3366 irsp = &rspiocbp->iocb;
3368 if (++pring->sli.sli3.rspidx >= portRspMax)
3369 pring->sli.sli3.rspidx = 0;
3371 if (pring->ringno == LPFC_ELS_RING) {
3372 lpfc_debugfs_slow_ring_trc(phba,
3373 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
3374 *(((uint32_t *) irsp) + 4),
3375 *(((uint32_t *) irsp) + 6),
3376 *(((uint32_t *) irsp) + 7));
3379 writel(pring->sli.sli3.rspidx,
3380 &phba->host_gp[pring->ringno].rspGetInx);
3382 spin_unlock_irqrestore(&phba->hbalock, iflag);
3383 /* Handle the response IOCB */
3384 rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
3385 spin_lock_irqsave(&phba->hbalock, iflag);
3388 * If the port response put pointer has not been updated, sync
3389 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
3390 * response put pointer.
3392 if (pring->sli.sli3.rspidx == portRspPut) {
3393 portRspPut = le32_to_cpu(pgp->rspPutInx);
3395 } /* while (pring->sli.sli3.rspidx != portRspPut) */
3397 if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
3398 /* At least one response entry has been freed */
3399 pring->stats.iocb_rsp_full++;
3400 /* SET RxRE_RSP in Chip Att register */
3401 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3402 writel(status, phba->CAregaddr);
3403 readl(phba->CAregaddr); /* flush */
3405 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3406 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3407 pring->stats.iocb_cmd_empty++;
3409 /* Force update of the local copy of cmdGetInx */
3410 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3411 lpfc_sli_resume_iocb(phba, pring);
3413 if ((pring->lpfc_sli_cmd_available))
3414 (pring->lpfc_sli_cmd_available) (phba, pring);
3418 spin_unlock_irqrestore(&phba->hbalock, iflag);
3423 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
3424 * @phba: Pointer to HBA context object.
3425 * @pring: Pointer to driver SLI ring object.
3426 * @mask: Host attention register mask for this ring.
3428 * This function is called from the worker thread when there is a pending
3429 * ELS response iocb on the driver internal slow-path response iocb worker
3430 * queue. The caller does not hold any lock. The function will remove each
3431 * response iocb from the response worker queue and calls the handle
3432 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3435 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
3436 struct lpfc_sli_ring *pring, uint32_t mask)
3438 struct lpfc_iocbq *irspiocbq;
3439 struct hbq_dmabuf *dmabuf;
3440 struct lpfc_cq_event *cq_event;
3441 unsigned long iflag;
3443 spin_lock_irqsave(&phba->hbalock, iflag);
3444 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
3445 spin_unlock_irqrestore(&phba->hbalock, iflag);
3446 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
3447 /* Get the response iocb from the head of work queue */
3448 spin_lock_irqsave(&phba->hbalock, iflag);
3449 list_remove_head(&phba->sli4_hba.sp_queue_event,
3450 cq_event, struct lpfc_cq_event, list);
3451 spin_unlock_irqrestore(&phba->hbalock, iflag);
3453 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
3454 case CQE_CODE_COMPL_WQE:
3455 irspiocbq = container_of(cq_event, struct lpfc_iocbq,
3457 /* Translate ELS WCQE to response IOCBQ */
3458 irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba,
3461 lpfc_sli_sp_handle_rspiocb(phba, pring,
3464 case CQE_CODE_RECEIVE:
3465 case CQE_CODE_RECEIVE_V1:
3466 dmabuf = container_of(cq_event, struct hbq_dmabuf,
3468 lpfc_sli4_handle_received_buffer(phba, dmabuf);
3477 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
3478 * @phba: Pointer to HBA context object.
3479 * @pring: Pointer to driver SLI ring object.
3481 * This function aborts all iocbs in the given ring and frees all the iocb
3482 * objects in txq. This function issues an abort iocb for all the iocb commands
3483 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3484 * the return of this function. The caller is not required to hold any locks.
3487 lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3489 LIST_HEAD(completions);
3490 struct lpfc_iocbq *iocb, *next_iocb;
3492 if (pring->ringno == LPFC_ELS_RING) {
3493 lpfc_fabric_abort_hba(phba);
3496 /* Error everything on txq and txcmplq
3499 spin_lock_irq(&phba->hbalock);
3500 list_splice_init(&pring->txq, &completions);
3503 /* Next issue ABTS for everything on the txcmplq */
3504 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3505 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3507 spin_unlock_irq(&phba->hbalock);
3509 /* Cancel all the IOCBs from the completions list */
3510 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3515 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
3516 * @phba: Pointer to HBA context object.
3518 * This function flushes all iocbs in the fcp ring and frees all the iocb
3519 * objects in txq and txcmplq. This function will not issue abort iocbs
3520 * for all the iocb commands in txcmplq, they will just be returned with
3521 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3522 * slot has been permanently disabled.
3525 lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba)
3529 struct lpfc_sli *psli = &phba->sli;
3530 struct lpfc_sli_ring *pring;
3532 /* Currently, only one fcp ring */
3533 pring = &psli->ring[psli->fcp_ring];
3535 spin_lock_irq(&phba->hbalock);
3536 /* Retrieve everything on txq */
3537 list_splice_init(&pring->txq, &txq);
3540 /* Retrieve everything on the txcmplq */
3541 list_splice_init(&pring->txcmplq, &txcmplq);
3542 pring->txcmplq_cnt = 0;
3544 /* Indicate the I/O queues are flushed */
3545 phba->hba_flag |= HBA_FCP_IOQ_FLUSH;
3546 spin_unlock_irq(&phba->hbalock);
3549 lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
3552 /* Flush the txcmpq */
3553 lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
3558 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
3559 * @phba: Pointer to HBA context object.
3560 * @mask: Bit mask to be checked.
3562 * This function reads the host status register and compares
3563 * with the provided bit mask to check if HBA completed
3564 * the restart. This function will wait in a loop for the
3565 * HBA to complete restart. If the HBA does not restart within
3566 * 15 iterations, the function will reset the HBA again. The
3567 * function returns 1 when HBA fail to restart otherwise returns
3571 lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
3577 /* Read the HBA Host Status Register */
3578 if (lpfc_readl(phba->HSregaddr, &status))
3582 * Check status register every 100ms for 5 retries, then every
3583 * 500ms for 5, then every 2.5 sec for 5, then reset board and
3584 * every 2.5 sec for 4.
3585 * Break our of the loop if errors occurred during init.
3587 while (((status & mask) != mask) &&
3588 !(status & HS_FFERM) &&
3600 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3601 lpfc_sli_brdrestart(phba);
3603 /* Read the HBA Host Status Register */
3604 if (lpfc_readl(phba->HSregaddr, &status)) {
3610 /* Check to see if any errors occurred during init */
3611 if ((status & HS_FFERM) || (i >= 20)) {
3612 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3613 "2751 Adapter failed to restart, "
3614 "status reg x%x, FW Data: A8 x%x AC x%x\n",
3616 readl(phba->MBslimaddr + 0xa8),
3617 readl(phba->MBslimaddr + 0xac));
3618 phba->link_state = LPFC_HBA_ERROR;
3626 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3627 * @phba: Pointer to HBA context object.
3628 * @mask: Bit mask to be checked.
3630 * This function checks the host status register to check if HBA is
3631 * ready. This function will wait in a loop for the HBA to be ready
3632 * If the HBA is not ready , the function will will reset the HBA PCI
3633 * function again. The function returns 1 when HBA fail to be ready
3634 * otherwise returns zero.
3637 lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
3642 /* Read the HBA Host Status Register */
3643 status = lpfc_sli4_post_status_check(phba);
3646 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3647 lpfc_sli_brdrestart(phba);
3648 status = lpfc_sli4_post_status_check(phba);
3651 /* Check to see if any errors occurred during init */
3653 phba->link_state = LPFC_HBA_ERROR;
3656 phba->sli4_hba.intr_enable = 0;
3662 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3663 * @phba: Pointer to HBA context object.
3664 * @mask: Bit mask to be checked.
3666 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3667 * from the API jump table function pointer from the lpfc_hba struct.
3670 lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
3672 return phba->lpfc_sli_brdready(phba, mask);
3675 #define BARRIER_TEST_PATTERN (0xdeadbeef)
3678 * lpfc_reset_barrier - Make HBA ready for HBA reset
3679 * @phba: Pointer to HBA context object.
3681 * This function is called before resetting an HBA. This function is called
3682 * with hbalock held and requests HBA to quiesce DMAs before a reset.
3684 void lpfc_reset_barrier(struct lpfc_hba *phba)
3686 uint32_t __iomem *resp_buf;
3687 uint32_t __iomem *mbox_buf;
3688 volatile uint32_t mbox;
3689 uint32_t hc_copy, ha_copy, resp_data;
3693 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
3694 if (hdrtype != 0x80 ||
3695 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
3696 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
3700 * Tell the other part of the chip to suspend temporarily all
3703 resp_buf = phba->MBslimaddr;
3705 /* Disable the error attention */
3706 if (lpfc_readl(phba->HCregaddr, &hc_copy))
3708 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
3709 readl(phba->HCregaddr); /* flush */
3710 phba->link_flag |= LS_IGNORE_ERATT;
3712 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3714 if (ha_copy & HA_ERATT) {
3715 /* Clear Chip error bit */
3716 writel(HA_ERATT, phba->HAregaddr);
3717 phba->pport->stopped = 1;
3721 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
3722 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
3724 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
3725 mbox_buf = phba->MBslimaddr;
3726 writel(mbox, mbox_buf);
3728 for (i = 0; i < 50; i++) {
3729 if (lpfc_readl((resp_buf + 1), &resp_data))
3731 if (resp_data != ~(BARRIER_TEST_PATTERN))
3737 if (lpfc_readl((resp_buf + 1), &resp_data))
3739 if (resp_data != ~(BARRIER_TEST_PATTERN)) {
3740 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
3741 phba->pport->stopped)
3747 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
3749 for (i = 0; i < 500; i++) {
3750 if (lpfc_readl(resp_buf, &resp_data))
3752 if (resp_data != mbox)
3761 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3763 if (!(ha_copy & HA_ERATT))
3769 if (readl(phba->HAregaddr) & HA_ERATT) {
3770 writel(HA_ERATT, phba->HAregaddr);
3771 phba->pport->stopped = 1;
3775 phba->link_flag &= ~LS_IGNORE_ERATT;
3776 writel(hc_copy, phba->HCregaddr);
3777 readl(phba->HCregaddr); /* flush */
3781 * lpfc_sli_brdkill - Issue a kill_board mailbox command
3782 * @phba: Pointer to HBA context object.
3784 * This function issues a kill_board mailbox command and waits for
3785 * the error attention interrupt. This function is called for stopping
3786 * the firmware processing. The caller is not required to hold any
3787 * locks. This function calls lpfc_hba_down_post function to free
3788 * any pending commands after the kill. The function will return 1 when it
3789 * fails to kill the board else will return 0.
3792 lpfc_sli_brdkill(struct lpfc_hba *phba)
3794 struct lpfc_sli *psli;
3804 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3805 "0329 Kill HBA Data: x%x x%x\n",
3806 phba->pport->port_state, psli->sli_flag);
3808 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3812 /* Disable the error attention */
3813 spin_lock_irq(&phba->hbalock);
3814 if (lpfc_readl(phba->HCregaddr, &status)) {
3815 spin_unlock_irq(&phba->hbalock);
3816 mempool_free(pmb, phba->mbox_mem_pool);
3819 status &= ~HC_ERINT_ENA;
3820 writel(status, phba->HCregaddr);
3821 readl(phba->HCregaddr); /* flush */
3822 phba->link_flag |= LS_IGNORE_ERATT;
3823 spin_unlock_irq(&phba->hbalock);
3825 lpfc_kill_board(phba, pmb);
3826 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3827 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3829 if (retval != MBX_SUCCESS) {
3830 if (retval != MBX_BUSY)
3831 mempool_free(pmb, phba->mbox_mem_pool);
3832 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3833 "2752 KILL_BOARD command failed retval %d\n",
3835 spin_lock_irq(&phba->hbalock);
3836 phba->link_flag &= ~LS_IGNORE_ERATT;
3837 spin_unlock_irq(&phba->hbalock);
3841 spin_lock_irq(&phba->hbalock);
3842 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
3843 spin_unlock_irq(&phba->hbalock);
3845 mempool_free(pmb, phba->mbox_mem_pool);
3847 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
3848 * attention every 100ms for 3 seconds. If we don't get ERATT after
3849 * 3 seconds we still set HBA_ERROR state because the status of the
3850 * board is now undefined.
3852 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3854 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
3856 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3860 del_timer_sync(&psli->mbox_tmo);
3861 if (ha_copy & HA_ERATT) {
3862 writel(HA_ERATT, phba->HAregaddr);
3863 phba->pport->stopped = 1;
3865 spin_lock_irq(&phba->hbalock);
3866 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
3867 psli->mbox_active = NULL;
3868 phba->link_flag &= ~LS_IGNORE_ERATT;
3869 spin_unlock_irq(&phba->hbalock);
3871 lpfc_hba_down_post(phba);
3872 phba->link_state = LPFC_HBA_ERROR;
3874 return ha_copy & HA_ERATT ? 0 : 1;
3878 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
3879 * @phba: Pointer to HBA context object.
3881 * This function resets the HBA by writing HC_INITFF to the control
3882 * register. After the HBA resets, this function resets all the iocb ring
3883 * indices. This function disables PCI layer parity checking during
3885 * This function returns 0 always.
3886 * The caller is not required to hold any locks.
3889 lpfc_sli_brdreset(struct lpfc_hba *phba)
3891 struct lpfc_sli *psli;
3892 struct lpfc_sli_ring *pring;
3899 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3900 "0325 Reset HBA Data: x%x x%x\n",
3901 phba->pport->port_state, psli->sli_flag);
3903 /* perform board reset */
3904 phba->fc_eventTag = 0;
3905 phba->link_events = 0;
3906 phba->pport->fc_myDID = 0;
3907 phba->pport->fc_prevDID = 0;
3909 /* Turn off parity checking and serr during the physical reset */
3910 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
3911 pci_write_config_word(phba->pcidev, PCI_COMMAND,
3913 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
3915 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
3917 /* Now toggle INITFF bit in the Host Control Register */
3918 writel(HC_INITFF, phba->HCregaddr);
3920 readl(phba->HCregaddr); /* flush */
3921 writel(0, phba->HCregaddr);
3922 readl(phba->HCregaddr); /* flush */
3924 /* Restore PCI cmd register */
3925 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
3927 /* Initialize relevant SLI info */
3928 for (i = 0; i < psli->num_rings; i++) {
3929 pring = &psli->ring[i];
3931 pring->sli.sli3.rspidx = 0;
3932 pring->sli.sli3.next_cmdidx = 0;
3933 pring->sli.sli3.local_getidx = 0;
3934 pring->sli.sli3.cmdidx = 0;
3935 pring->missbufcnt = 0;
3938 phba->link_state = LPFC_WARM_START;
3943 * lpfc_sli4_brdreset - Reset a sli-4 HBA
3944 * @phba: Pointer to HBA context object.
3946 * This function resets a SLI4 HBA. This function disables PCI layer parity
3947 * checking during resets the device. The caller is not required to hold
3950 * This function returns 0 always.
3953 lpfc_sli4_brdreset(struct lpfc_hba *phba)
3955 struct lpfc_sli *psli = &phba->sli;
3960 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3961 "0295 Reset HBA Data: x%x x%x\n",
3962 phba->pport->port_state, psli->sli_flag);
3964 /* perform board reset */
3965 phba->fc_eventTag = 0;
3966 phba->link_events = 0;
3967 phba->pport->fc_myDID = 0;
3968 phba->pport->fc_prevDID = 0;
3970 spin_lock_irq(&phba->hbalock);
3971 psli->sli_flag &= ~(LPFC_PROCESS_LA);
3972 phba->fcf.fcf_flag = 0;
3973 spin_unlock_irq(&phba->hbalock);
3975 /* Now physically reset the device */
3976 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3977 "0389 Performing PCI function reset!\n");
3979 /* Turn off parity checking and serr during the physical reset */
3980 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
3981 pci_write_config_word(phba->pcidev, PCI_COMMAND, (cfg_value &
3982 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
3984 /* Perform FCoE PCI function reset before freeing queue memory */
3985 rc = lpfc_pci_function_reset(phba);
3986 lpfc_sli4_queue_destroy(phba);
3988 /* Restore PCI cmd register */
3989 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
3995 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
3996 * @phba: Pointer to HBA context object.
3998 * This function is called in the SLI initialization code path to
3999 * restart the HBA. The caller is not required to hold any lock.
4000 * This function writes MBX_RESTART mailbox command to the SLIM and
4001 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
4002 * function to free any pending commands. The function enables
4003 * POST only during the first initialization. The function returns zero.
4004 * The function does not guarantee completion of MBX_RESTART mailbox
4005 * command before the return of this function.
4008 lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
4011 struct lpfc_sli *psli;
4012 volatile uint32_t word0;
4013 void __iomem *to_slim;
4014 uint32_t hba_aer_enabled;
4016 spin_lock_irq(&phba->hbalock);
4018 /* Take PCIe device Advanced Error Reporting (AER) state */
4019 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4024 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4025 "0337 Restart HBA Data: x%x x%x\n",
4026 phba->pport->port_state, psli->sli_flag);
4029 mb = (MAILBOX_t *) &word0;
4030 mb->mbxCommand = MBX_RESTART;
4033 lpfc_reset_barrier(phba);
4035 to_slim = phba->MBslimaddr;
4036 writel(*(uint32_t *) mb, to_slim);
4037 readl(to_slim); /* flush */
4039 /* Only skip post after fc_ffinit is completed */
4040 if (phba->pport->port_state)
4041 word0 = 1; /* This is really setting up word1 */
4043 word0 = 0; /* This is really setting up word1 */
4044 to_slim = phba->MBslimaddr + sizeof (uint32_t);
4045 writel(*(uint32_t *) mb, to_slim);
4046 readl(to_slim); /* flush */
4048 lpfc_sli_brdreset(phba);
4049 phba->pport->stopped = 0;
4050 phba->link_state = LPFC_INIT_START;
4052 spin_unlock_irq(&phba->hbalock);
4054 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4055 psli->stats_start = get_seconds();
4057 /* Give the INITFF and Post time to settle. */
4060 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4061 if (hba_aer_enabled)
4062 pci_disable_pcie_error_reporting(phba->pcidev);
4064 lpfc_hba_down_post(phba);
4070 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
4071 * @phba: Pointer to HBA context object.
4073 * This function is called in the SLI initialization code path to restart
4074 * a SLI4 HBA. The caller is not required to hold any lock.
4075 * At the end of the function, it calls lpfc_hba_down_post function to
4076 * free any pending commands.
4079 lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
4081 struct lpfc_sli *psli = &phba->sli;
4082 uint32_t hba_aer_enabled;
4086 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4087 "0296 Restart HBA Data: x%x x%x\n",
4088 phba->pport->port_state, psli->sli_flag);
4090 /* Take PCIe device Advanced Error Reporting (AER) state */
4091 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4093 rc = lpfc_sli4_brdreset(phba);
4095 spin_lock_irq(&phba->hbalock);
4096 phba->pport->stopped = 0;
4097 phba->link_state = LPFC_INIT_START;
4099 spin_unlock_irq(&phba->hbalock);
4101 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4102 psli->stats_start = get_seconds();
4104 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4105 if (hba_aer_enabled)
4106 pci_disable_pcie_error_reporting(phba->pcidev);
4108 lpfc_hba_down_post(phba);
4114 * lpfc_sli_brdrestart - Wrapper func for restarting hba
4115 * @phba: Pointer to HBA context object.
4117 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
4118 * API jump table function pointer from the lpfc_hba struct.
4121 lpfc_sli_brdrestart(struct lpfc_hba *phba)
4123 return phba->lpfc_sli_brdrestart(phba);
4127 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
4128 * @phba: Pointer to HBA context object.
4130 * This function is called after a HBA restart to wait for successful
4131 * restart of the HBA. Successful restart of the HBA is indicated by
4132 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
4133 * iteration, the function will restart the HBA again. The function returns
4134 * zero if HBA successfully restarted else returns negative error code.
4137 lpfc_sli_chipset_init(struct lpfc_hba *phba)
4139 uint32_t status, i = 0;
4141 /* Read the HBA Host Status Register */
4142 if (lpfc_readl(phba->HSregaddr, &status))
4145 /* Check status register to see what current state is */
4147 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
4149 /* Check every 10ms for 10 retries, then every 100ms for 90
4150 * retries, then every 1 sec for 50 retires for a total of
4151 * ~60 seconds before reset the board again and check every
4152 * 1 sec for 50 retries. The up to 60 seconds before the
4153 * board ready is required by the Falcon FIPS zeroization
4154 * complete, and any reset the board in between shall cause
4155 * restart of zeroization, further delay the board ready.
4158 /* Adapter failed to init, timeout, status reg
4160 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4161 "0436 Adapter failed to init, "
4162 "timeout, status reg x%x, "
4163 "FW Data: A8 x%x AC x%x\n", status,
4164 readl(phba->MBslimaddr + 0xa8),
4165 readl(phba->MBslimaddr + 0xac));
4166 phba->link_state = LPFC_HBA_ERROR;
4170 /* Check to see if any errors occurred during init */
4171 if (status & HS_FFERM) {
4172 /* ERROR: During chipset initialization */
4173 /* Adapter failed to init, chipset, status reg
4175 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4176 "0437 Adapter failed to init, "
4177 "chipset, status reg x%x, "
4178 "FW Data: A8 x%x AC x%x\n", status,
4179 readl(phba->MBslimaddr + 0xa8),
4180 readl(phba->MBslimaddr + 0xac));
4181 phba->link_state = LPFC_HBA_ERROR;
4194 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4195 lpfc_sli_brdrestart(phba);
4197 /* Read the HBA Host Status Register */
4198 if (lpfc_readl(phba->HSregaddr, &status))
4202 /* Check to see if any errors occurred during init */
4203 if (status & HS_FFERM) {
4204 /* ERROR: During chipset initialization */
4205 /* Adapter failed to init, chipset, status reg <status> */
4206 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4207 "0438 Adapter failed to init, chipset, "
4209 "FW Data: A8 x%x AC x%x\n", status,
4210 readl(phba->MBslimaddr + 0xa8),
4211 readl(phba->MBslimaddr + 0xac));
4212 phba->link_state = LPFC_HBA_ERROR;
4216 /* Clear all interrupt enable conditions */
4217 writel(0, phba->HCregaddr);
4218 readl(phba->HCregaddr); /* flush */
4220 /* setup host attn register */
4221 writel(0xffffffff, phba->HAregaddr);
4222 readl(phba->HAregaddr); /* flush */
4227 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
4229 * This function calculates and returns the number of HBQs required to be
4233 lpfc_sli_hbq_count(void)
4235 return ARRAY_SIZE(lpfc_hbq_defs);
4239 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
4241 * This function adds the number of hbq entries in every HBQ to get
4242 * the total number of hbq entries required for the HBA and returns
4246 lpfc_sli_hbq_entry_count(void)
4248 int hbq_count = lpfc_sli_hbq_count();
4252 for (i = 0; i < hbq_count; ++i)
4253 count += lpfc_hbq_defs[i]->entry_count;
4258 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
4260 * This function calculates amount of memory required for all hbq entries
4261 * to be configured and returns the total memory required.
4264 lpfc_sli_hbq_size(void)
4266 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
4270 * lpfc_sli_hbq_setup - configure and initialize HBQs
4271 * @phba: Pointer to HBA context object.
4273 * This function is called during the SLI initialization to configure
4274 * all the HBQs and post buffers to the HBQ. The caller is not
4275 * required to hold any locks. This function will return zero if successful
4276 * else it will return negative error code.
4279 lpfc_sli_hbq_setup(struct lpfc_hba *phba)
4281 int hbq_count = lpfc_sli_hbq_count();
4285 uint32_t hbq_entry_index;
4287 /* Get a Mailbox buffer to setup mailbox
4288 * commands for HBA initialization
4290 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4297 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
4298 phba->link_state = LPFC_INIT_MBX_CMDS;
4299 phba->hbq_in_use = 1;
4301 hbq_entry_index = 0;
4302 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
4303 phba->hbqs[hbqno].next_hbqPutIdx = 0;
4304 phba->hbqs[hbqno].hbqPutIdx = 0;
4305 phba->hbqs[hbqno].local_hbqGetIdx = 0;
4306 phba->hbqs[hbqno].entry_count =
4307 lpfc_hbq_defs[hbqno]->entry_count;
4308 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
4309 hbq_entry_index, pmb);
4310 hbq_entry_index += phba->hbqs[hbqno].entry_count;
4312 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
4313 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
4314 mbxStatus <status>, ring <num> */
4316 lpfc_printf_log(phba, KERN_ERR,
4317 LOG_SLI | LOG_VPORT,
4318 "1805 Adapter failed to init. "
4319 "Data: x%x x%x x%x\n",
4321 pmbox->mbxStatus, hbqno);
4323 phba->link_state = LPFC_HBA_ERROR;
4324 mempool_free(pmb, phba->mbox_mem_pool);
4328 phba->hbq_count = hbq_count;
4330 mempool_free(pmb, phba->mbox_mem_pool);
4332 /* Initially populate or replenish the HBQs */
4333 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
4334 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
4339 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
4340 * @phba: Pointer to HBA context object.
4342 * This function is called during the SLI initialization to configure
4343 * all the HBQs and post buffers to the HBQ. The caller is not
4344 * required to hold any locks. This function will return zero if successful
4345 * else it will return negative error code.
4348 lpfc_sli4_rb_setup(struct lpfc_hba *phba)
4350 phba->hbq_in_use = 1;
4351 phba->hbqs[0].entry_count = lpfc_hbq_defs[0]->entry_count;
4352 phba->hbq_count = 1;
4353 /* Initially populate or replenish the HBQs */
4354 lpfc_sli_hbqbuf_init_hbqs(phba, 0);
4359 * lpfc_sli_config_port - Issue config port mailbox command
4360 * @phba: Pointer to HBA context object.
4361 * @sli_mode: sli mode - 2/3
4363 * This function is called by the sli intialization code path
4364 * to issue config_port mailbox command. This function restarts the
4365 * HBA firmware and issues a config_port mailbox command to configure
4366 * the SLI interface in the sli mode specified by sli_mode
4367 * variable. The caller is not required to hold any locks.
4368 * The function returns 0 if successful, else returns negative error
4372 lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
4375 uint32_t resetcount = 0, rc = 0, done = 0;
4377 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4379 phba->link_state = LPFC_HBA_ERROR;
4383 phba->sli_rev = sli_mode;
4384 while (resetcount < 2 && !done) {
4385 spin_lock_irq(&phba->hbalock);
4386 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
4387 spin_unlock_irq(&phba->hbalock);
4388 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4389 lpfc_sli_brdrestart(phba);
4390 rc = lpfc_sli_chipset_init(phba);
4394 spin_lock_irq(&phba->hbalock);
4395 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4396 spin_unlock_irq(&phba->hbalock);
4399 /* Call pre CONFIG_PORT mailbox command initialization. A
4400 * value of 0 means the call was successful. Any other
4401 * nonzero value is a failure, but if ERESTART is returned,
4402 * the driver may reset the HBA and try again.
4404 rc = lpfc_config_port_prep(phba);
4405 if (rc == -ERESTART) {
4406 phba->link_state = LPFC_LINK_UNKNOWN;
4411 phba->link_state = LPFC_INIT_MBX_CMDS;
4412 lpfc_config_port(phba, pmb);
4413 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
4414 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
4415 LPFC_SLI3_HBQ_ENABLED |
4416 LPFC_SLI3_CRP_ENABLED |
4417 LPFC_SLI3_BG_ENABLED |
4418 LPFC_SLI3_DSS_ENABLED);
4419 if (rc != MBX_SUCCESS) {
4420 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4421 "0442 Adapter failed to init, mbxCmd x%x "
4422 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
4423 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
4424 spin_lock_irq(&phba->hbalock);
4425 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
4426 spin_unlock_irq(&phba->hbalock);
4429 /* Allow asynchronous mailbox command to go through */
4430 spin_lock_irq(&phba->hbalock);
4431 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
4432 spin_unlock_irq(&phba->hbalock);
4435 if ((pmb->u.mb.un.varCfgPort.casabt == 1) &&
4436 (pmb->u.mb.un.varCfgPort.gasabt == 0))
4437 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4438 "3110 Port did not grant ASABT\n");
4443 goto do_prep_failed;
4445 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
4446 if (!pmb->u.mb.un.varCfgPort.cMA) {
4448 goto do_prep_failed;
4450 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
4451 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
4452 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
4453 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
4454 phba->max_vpi : phba->max_vports;
4458 phba->fips_level = 0;
4459 phba->fips_spec_rev = 0;
4460 if (pmb->u.mb.un.varCfgPort.gdss) {
4461 phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
4462 phba->fips_level = pmb->u.mb.un.varCfgPort.fips_level;
4463 phba->fips_spec_rev = pmb->u.mb.un.varCfgPort.fips_rev;
4464 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4465 "2850 Security Crypto Active. FIPS x%d "
4467 phba->fips_level, phba->fips_spec_rev);
4469 if (pmb->u.mb.un.varCfgPort.sec_err) {
4470 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4471 "2856 Config Port Security Crypto "
4473 pmb->u.mb.un.varCfgPort.sec_err);
4475 if (pmb->u.mb.un.varCfgPort.gerbm)
4476 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
4477 if (pmb->u.mb.un.varCfgPort.gcrp)
4478 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
4480 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
4481 phba->port_gp = phba->mbox->us.s3_pgp.port;
4483 if (phba->cfg_enable_bg) {
4484 if (pmb->u.mb.un.varCfgPort.gbg)
4485 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
4487 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4488 "0443 Adapter did not grant "
4492 phba->hbq_get = NULL;
4493 phba->port_gp = phba->mbox->us.s2.port;
4497 mempool_free(pmb, phba->mbox_mem_pool);
4503 * lpfc_sli_hba_setup - SLI intialization function
4504 * @phba: Pointer to HBA context object.
4506 * This function is the main SLI intialization function. This function
4507 * is called by the HBA intialization code, HBA reset code and HBA
4508 * error attention handler code. Caller is not required to hold any
4509 * locks. This function issues config_port mailbox command to configure
4510 * the SLI, setup iocb rings and HBQ rings. In the end the function
4511 * calls the config_port_post function to issue init_link mailbox
4512 * command and to start the discovery. The function will return zero
4513 * if successful, else it will return negative error code.
4516 lpfc_sli_hba_setup(struct lpfc_hba *phba)
4522 switch (lpfc_sli_mode) {
4524 if (phba->cfg_enable_npiv) {
4525 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4526 "1824 NPIV enabled: Override lpfc_sli_mode "
4527 "parameter (%d) to auto (0).\n",
4537 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4538 "1819 Unrecognized lpfc_sli_mode "
4539 "parameter: %d.\n", lpfc_sli_mode);
4544 rc = lpfc_sli_config_port(phba, mode);
4546 if (rc && lpfc_sli_mode == 3)
4547 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4548 "1820 Unable to select SLI-3. "
4549 "Not supported by adapter.\n");
4550 if (rc && mode != 2)
4551 rc = lpfc_sli_config_port(phba, 2);
4553 goto lpfc_sli_hba_setup_error;
4555 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4556 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
4557 rc = pci_enable_pcie_error_reporting(phba->pcidev);
4559 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4560 "2709 This device supports "
4561 "Advanced Error Reporting (AER)\n");
4562 spin_lock_irq(&phba->hbalock);
4563 phba->hba_flag |= HBA_AER_ENABLED;
4564 spin_unlock_irq(&phba->hbalock);
4566 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4567 "2708 This device does not support "
4568 "Advanced Error Reporting (AER)\n");
4569 phba->cfg_aer_support = 0;
4573 if (phba->sli_rev == 3) {
4574 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
4575 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
4577 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
4578 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
4579 phba->sli3_options = 0;
4582 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4583 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
4584 phba->sli_rev, phba->max_vpi);
4585 rc = lpfc_sli_ring_map(phba);
4588 goto lpfc_sli_hba_setup_error;
4590 /* Initialize VPIs. */
4591 if (phba->sli_rev == LPFC_SLI_REV3) {
4593 * The VPI bitmask and physical ID array are allocated
4594 * and initialized once only - at driver load. A port
4595 * reset doesn't need to reinitialize this memory.
4597 if ((phba->vpi_bmask == NULL) && (phba->vpi_ids == NULL)) {
4598 longs = (phba->max_vpi + BITS_PER_LONG) / BITS_PER_LONG;
4599 phba->vpi_bmask = kzalloc(longs * sizeof(unsigned long),
4601 if (!phba->vpi_bmask) {
4603 goto lpfc_sli_hba_setup_error;
4606 phba->vpi_ids = kzalloc(
4607 (phba->max_vpi+1) * sizeof(uint16_t),
4609 if (!phba->vpi_ids) {
4610 kfree(phba->vpi_bmask);
4612 goto lpfc_sli_hba_setup_error;
4614 for (i = 0; i < phba->max_vpi; i++)
4615 phba->vpi_ids[i] = i;
4620 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
4621 rc = lpfc_sli_hbq_setup(phba);
4623 goto lpfc_sli_hba_setup_error;
4625 spin_lock_irq(&phba->hbalock);
4626 phba->sli.sli_flag |= LPFC_PROCESS_LA;
4627 spin_unlock_irq(&phba->hbalock);
4629 rc = lpfc_config_port_post(phba);
4631 goto lpfc_sli_hba_setup_error;
4635 lpfc_sli_hba_setup_error:
4636 phba->link_state = LPFC_HBA_ERROR;
4637 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4638 "0445 Firmware initialization failed\n");
4643 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
4644 * @phba: Pointer to HBA context object.
4645 * @mboxq: mailbox pointer.
4646 * This function issue a dump mailbox command to read config region
4647 * 23 and parse the records in the region and populate driver
4651 lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba)
4653 LPFC_MBOXQ_t *mboxq;
4654 struct lpfc_dmabuf *mp;
4655 struct lpfc_mqe *mqe;
4656 uint32_t data_length;
4659 /* Program the default value of vlan_id and fc_map */
4660 phba->valid_vlan = 0;
4661 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4662 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4663 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4665 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4669 mqe = &mboxq->u.mqe;
4670 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq)) {
4672 goto out_free_mboxq;
4675 mp = (struct lpfc_dmabuf *) mboxq->context1;
4676 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4678 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4679 "(%d):2571 Mailbox cmd x%x Status x%x "
4680 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4681 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4682 "CQ: x%x x%x x%x x%x\n",
4683 mboxq->vport ? mboxq->vport->vpi : 0,
4684 bf_get(lpfc_mqe_command, mqe),
4685 bf_get(lpfc_mqe_status, mqe),
4686 mqe->un.mb_words[0], mqe->un.mb_words[1],
4687 mqe->un.mb_words[2], mqe->un.mb_words[3],
4688 mqe->un.mb_words[4], mqe->un.mb_words[5],
4689 mqe->un.mb_words[6], mqe->un.mb_words[7],
4690 mqe->un.mb_words[8], mqe->un.mb_words[9],
4691 mqe->un.mb_words[10], mqe->un.mb_words[11],
4692 mqe->un.mb_words[12], mqe->un.mb_words[13],
4693 mqe->un.mb_words[14], mqe->un.mb_words[15],
4694 mqe->un.mb_words[16], mqe->un.mb_words[50],
4696 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
4697 mboxq->mcqe.trailer);
4700 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4703 goto out_free_mboxq;
4705 data_length = mqe->un.mb_words[5];
4706 if (data_length > DMP_RGN23_SIZE) {
4707 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4710 goto out_free_mboxq;
4713 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
4714 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4719 mempool_free(mboxq, phba->mbox_mem_pool);
4724 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
4725 * @phba: pointer to lpfc hba data structure.
4726 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
4727 * @vpd: pointer to the memory to hold resulting port vpd data.
4728 * @vpd_size: On input, the number of bytes allocated to @vpd.
4729 * On output, the number of data bytes in @vpd.
4731 * This routine executes a READ_REV SLI4 mailbox command. In
4732 * addition, this routine gets the port vpd data.
4736 * -ENOMEM - could not allocated memory.
4739 lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
4740 uint8_t *vpd, uint32_t *vpd_size)
4744 struct lpfc_dmabuf *dmabuf;
4745 struct lpfc_mqe *mqe;
4747 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4752 * Get a DMA buffer for the vpd data resulting from the READ_REV
4755 dma_size = *vpd_size;
4756 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4760 if (!dmabuf->virt) {
4764 memset(dmabuf->virt, 0, dma_size);
4767 * The SLI4 implementation of READ_REV conflicts at word1,
4768 * bits 31:16 and SLI4 adds vpd functionality not present
4769 * in SLI3. This code corrects the conflicts.
4771 lpfc_read_rev(phba, mboxq);
4772 mqe = &mboxq->u.mqe;
4773 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
4774 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
4775 mqe->un.read_rev.word1 &= 0x0000FFFF;
4776 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
4777 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
4779 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4781 dma_free_coherent(&phba->pcidev->dev, dma_size,
4782 dmabuf->virt, dmabuf->phys);
4788 * The available vpd length cannot be bigger than the
4789 * DMA buffer passed to the port. Catch the less than
4790 * case and update the caller's size.
4792 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
4793 *vpd_size = mqe->un.read_rev.avail_vpd_len;
4795 memcpy(vpd, dmabuf->virt, *vpd_size);
4797 dma_free_coherent(&phba->pcidev->dev, dma_size,
4798 dmabuf->virt, dmabuf->phys);
4804 * lpfc_sli4_retrieve_pport_name - Retrieve SLI4 device physical port name
4805 * @phba: pointer to lpfc hba data structure.
4807 * This routine retrieves SLI4 device physical port name this PCI function
4812 * otherwise - failed to retrieve physical port name
4815 lpfc_sli4_retrieve_pport_name(struct lpfc_hba *phba)
4817 LPFC_MBOXQ_t *mboxq;
4818 struct lpfc_mbx_get_cntl_attributes *mbx_cntl_attr;
4819 struct lpfc_controller_attribute *cntl_attr;
4820 struct lpfc_mbx_get_port_name *get_port_name;
4821 void *virtaddr = NULL;
4822 uint32_t alloclen, reqlen;
4823 uint32_t shdr_status, shdr_add_status;
4824 union lpfc_sli4_cfg_shdr *shdr;
4825 char cport_name = 0;
4828 /* We assume nothing at this point */
4829 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
4830 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_NON;
4832 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4835 /* obtain link type and link number via READ_CONFIG */
4836 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
4837 lpfc_sli4_read_config(phba);
4838 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL)
4839 goto retrieve_ppname;
4841 /* obtain link type and link number via COMMON_GET_CNTL_ATTRIBUTES */
4842 reqlen = sizeof(struct lpfc_mbx_get_cntl_attributes);
4843 alloclen = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
4844 LPFC_MBOX_OPCODE_GET_CNTL_ATTRIBUTES, reqlen,
4845 LPFC_SLI4_MBX_NEMBED);
4846 if (alloclen < reqlen) {
4847 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4848 "3084 Allocated DMA memory size (%d) is "
4849 "less than the requested DMA memory size "
4850 "(%d)\n", alloclen, reqlen);
4852 goto out_free_mboxq;
4854 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4855 virtaddr = mboxq->sge_array->addr[0];
4856 mbx_cntl_attr = (struct lpfc_mbx_get_cntl_attributes *)virtaddr;
4857 shdr = &mbx_cntl_attr->cfg_shdr;
4858 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
4859 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
4860 if (shdr_status || shdr_add_status || rc) {
4861 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4862 "3085 Mailbox x%x (x%x/x%x) failed, "
4863 "rc:x%x, status:x%x, add_status:x%x\n",
4864 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4865 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
4866 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
4867 rc, shdr_status, shdr_add_status);
4869 goto out_free_mboxq;
4871 cntl_attr = &mbx_cntl_attr->cntl_attr;
4872 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
4873 phba->sli4_hba.lnk_info.lnk_tp =
4874 bf_get(lpfc_cntl_attr_lnk_type, cntl_attr);
4875 phba->sli4_hba.lnk_info.lnk_no =
4876 bf_get(lpfc_cntl_attr_lnk_numb, cntl_attr);
4877 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4878 "3086 lnk_type:%d, lnk_numb:%d\n",
4879 phba->sli4_hba.lnk_info.lnk_tp,
4880 phba->sli4_hba.lnk_info.lnk_no);
4883 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
4884 LPFC_MBOX_OPCODE_GET_PORT_NAME,
4885 sizeof(struct lpfc_mbx_get_port_name) -
4886 sizeof(struct lpfc_sli4_cfg_mhdr),
4887 LPFC_SLI4_MBX_EMBED);
4888 get_port_name = &mboxq->u.mqe.un.get_port_name;
4889 shdr = (union lpfc_sli4_cfg_shdr *)&get_port_name->header.cfg_shdr;
4890 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_OPCODE_VERSION_1);
4891 bf_set(lpfc_mbx_get_port_name_lnk_type, &get_port_name->u.request,
4892 phba->sli4_hba.lnk_info.lnk_tp);
4893 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4894 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
4895 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
4896 if (shdr_status || shdr_add_status || rc) {
4897 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4898 "3087 Mailbox x%x (x%x/x%x) failed: "
4899 "rc:x%x, status:x%x, add_status:x%x\n",
4900 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4901 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
4902 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
4903 rc, shdr_status, shdr_add_status);
4905 goto out_free_mboxq;
4907 switch (phba->sli4_hba.lnk_info.lnk_no) {
4908 case LPFC_LINK_NUMBER_0:
4909 cport_name = bf_get(lpfc_mbx_get_port_name_name0,
4910 &get_port_name->u.response);
4911 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4913 case LPFC_LINK_NUMBER_1:
4914 cport_name = bf_get(lpfc_mbx_get_port_name_name1,
4915 &get_port_name->u.response);
4916 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4918 case LPFC_LINK_NUMBER_2:
4919 cport_name = bf_get(lpfc_mbx_get_port_name_name2,
4920 &get_port_name->u.response);
4921 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4923 case LPFC_LINK_NUMBER_3:
4924 cport_name = bf_get(lpfc_mbx_get_port_name_name3,
4925 &get_port_name->u.response);
4926 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4932 if (phba->sli4_hba.pport_name_sta == LPFC_SLI4_PPNAME_GET) {
4933 phba->Port[0] = cport_name;
4934 phba->Port[1] = '\0';
4935 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4936 "3091 SLI get port name: %s\n", phba->Port);
4940 if (rc != MBX_TIMEOUT) {
4941 if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
4942 lpfc_sli4_mbox_cmd_free(phba, mboxq);
4944 mempool_free(mboxq, phba->mbox_mem_pool);
4950 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
4951 * @phba: pointer to lpfc hba data structure.
4953 * This routine is called to explicitly arm the SLI4 device's completion and
4957 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
4961 lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM);
4962 lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM);
4964 if (phba->sli4_hba.fcp_cq) {
4966 lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[fcp_eqidx],
4968 } while (++fcp_eqidx < phba->cfg_fcp_io_channel);
4970 if (phba->sli4_hba.hba_eq) {
4971 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel;
4973 lpfc_sli4_eq_release(phba->sli4_hba.hba_eq[fcp_eqidx],
4979 * lpfc_sli4_get_avail_extnt_rsrc - Get available resource extent count.
4980 * @phba: Pointer to HBA context object.
4981 * @type: The resource extent type.
4982 * @extnt_count: buffer to hold port available extent count.
4983 * @extnt_size: buffer to hold element count per extent.
4985 * This function calls the port and retrievs the number of available
4986 * extents and their size for a particular extent type.
4988 * Returns: 0 if successful. Nonzero otherwise.
4991 lpfc_sli4_get_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type,
4992 uint16_t *extnt_count, uint16_t *extnt_size)
4997 struct lpfc_mbx_get_rsrc_extent_info *rsrc_info;
5000 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5004 /* Find out how many extents are available for this resource type */
5005 length = (sizeof(struct lpfc_mbx_get_rsrc_extent_info) -
5006 sizeof(struct lpfc_sli4_cfg_mhdr));
5007 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5008 LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO,
5009 length, LPFC_SLI4_MBX_EMBED);
5011 /* Send an extents count of 0 - the GET doesn't use it. */
5012 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5013 LPFC_SLI4_MBX_EMBED);
5019 if (!phba->sli4_hba.intr_enable)
5020 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5022 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5023 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5030 rsrc_info = &mbox->u.mqe.un.rsrc_extent_info;
5031 if (bf_get(lpfc_mbox_hdr_status,
5032 &rsrc_info->header.cfg_shdr.response)) {
5033 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5034 "2930 Failed to get resource extents "
5035 "Status 0x%x Add'l Status 0x%x\n",
5036 bf_get(lpfc_mbox_hdr_status,
5037 &rsrc_info->header.cfg_shdr.response),
5038 bf_get(lpfc_mbox_hdr_add_status,
5039 &rsrc_info->header.cfg_shdr.response));
5044 *extnt_count = bf_get(lpfc_mbx_get_rsrc_extent_info_cnt,
5046 *extnt_size = bf_get(lpfc_mbx_get_rsrc_extent_info_size,
5049 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5050 "3162 Retrieved extents type-%d from port: count:%d, "
5051 "size:%d\n", type, *extnt_count, *extnt_size);
5054 mempool_free(mbox, phba->mbox_mem_pool);
5059 * lpfc_sli4_chk_avail_extnt_rsrc - Check for available SLI4 resource extents.
5060 * @phba: Pointer to HBA context object.
5061 * @type: The extent type to check.
5063 * This function reads the current available extents from the port and checks
5064 * if the extent count or extent size has changed since the last access.
5065 * Callers use this routine post port reset to understand if there is a
5066 * extent reprovisioning requirement.
5069 * -Error: error indicates problem.
5070 * 1: Extent count or size has changed.
5074 lpfc_sli4_chk_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type)
5076 uint16_t curr_ext_cnt, rsrc_ext_cnt;
5077 uint16_t size_diff, rsrc_ext_size;
5079 struct lpfc_rsrc_blks *rsrc_entry;
5080 struct list_head *rsrc_blk_list = NULL;
5084 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5091 case LPFC_RSC_TYPE_FCOE_RPI:
5092 rsrc_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5094 case LPFC_RSC_TYPE_FCOE_VPI:
5095 rsrc_blk_list = &phba->lpfc_vpi_blk_list;
5097 case LPFC_RSC_TYPE_FCOE_XRI:
5098 rsrc_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5100 case LPFC_RSC_TYPE_FCOE_VFI:
5101 rsrc_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5107 list_for_each_entry(rsrc_entry, rsrc_blk_list, list) {
5109 if (rsrc_entry->rsrc_size != rsrc_ext_size)
5113 if (curr_ext_cnt != rsrc_ext_cnt || size_diff != 0)
5120 * lpfc_sli4_cfg_post_extnts -
5121 * @phba: Pointer to HBA context object.
5122 * @extnt_cnt - number of available extents.
5123 * @type - the extent type (rpi, xri, vfi, vpi).
5124 * @emb - buffer to hold either MBX_EMBED or MBX_NEMBED operation.
5125 * @mbox - pointer to the caller's allocated mailbox structure.
5127 * This function executes the extents allocation request. It also
5128 * takes care of the amount of memory needed to allocate or get the
5129 * allocated extents. It is the caller's responsibility to evaluate
5133 * -Error: Error value describes the condition found.
5137 lpfc_sli4_cfg_post_extnts(struct lpfc_hba *phba, uint16_t extnt_cnt,
5138 uint16_t type, bool *emb, LPFC_MBOXQ_t *mbox)
5143 uint32_t alloc_len, mbox_tmo;
5145 /* Calculate the total requested length of the dma memory */
5146 req_len = extnt_cnt * sizeof(uint16_t);
5149 * Calculate the size of an embedded mailbox. The uint32_t
5150 * accounts for extents-specific word.
5152 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
5156 * Presume the allocation and response will fit into an embedded
5157 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5159 *emb = LPFC_SLI4_MBX_EMBED;
5160 if (req_len > emb_len) {
5161 req_len = extnt_cnt * sizeof(uint16_t) +
5162 sizeof(union lpfc_sli4_cfg_shdr) +
5164 *emb = LPFC_SLI4_MBX_NEMBED;
5167 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5168 LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT,
5170 if (alloc_len < req_len) {
5171 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5172 "2982 Allocated DMA memory size (x%x) is "
5173 "less than the requested DMA memory "
5174 "size (x%x)\n", alloc_len, req_len);
5177 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, extnt_cnt, type, *emb);
5181 if (!phba->sli4_hba.intr_enable)
5182 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5184 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5185 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5194 * lpfc_sli4_alloc_extent - Allocate an SLI4 resource extent.
5195 * @phba: Pointer to HBA context object.
5196 * @type: The resource extent type to allocate.
5198 * This function allocates the number of elements for the specified
5202 lpfc_sli4_alloc_extent(struct lpfc_hba *phba, uint16_t type)
5205 uint16_t rsrc_id_cnt, rsrc_cnt, rsrc_size;
5206 uint16_t rsrc_id, rsrc_start, j, k;
5209 unsigned long longs;
5210 unsigned long *bmask;
5211 struct lpfc_rsrc_blks *rsrc_blks;
5214 struct lpfc_id_range *id_array = NULL;
5215 void *virtaddr = NULL;
5216 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5217 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5218 struct list_head *ext_blk_list;
5220 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5226 if ((rsrc_cnt == 0) || (rsrc_size == 0)) {
5227 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5228 "3009 No available Resource Extents "
5229 "for resource type 0x%x: Count: 0x%x, "
5230 "Size 0x%x\n", type, rsrc_cnt,
5235 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_INIT | LOG_SLI,
5236 "2903 Post resource extents type-0x%x: "
5237 "count:%d, size %d\n", type, rsrc_cnt, rsrc_size);
5239 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5243 rc = lpfc_sli4_cfg_post_extnts(phba, rsrc_cnt, type, &emb, mbox);
5250 * Figure out where the response is located. Then get local pointers
5251 * to the response data. The port does not guarantee to respond to
5252 * all extents counts request so update the local variable with the
5253 * allocated count from the port.
5255 if (emb == LPFC_SLI4_MBX_EMBED) {
5256 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
5257 id_array = &rsrc_ext->u.rsp.id[0];
5258 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
5260 virtaddr = mbox->sge_array->addr[0];
5261 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
5262 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
5263 id_array = &n_rsrc->id;
5266 longs = ((rsrc_cnt * rsrc_size) + BITS_PER_LONG - 1) / BITS_PER_LONG;
5267 rsrc_id_cnt = rsrc_cnt * rsrc_size;
5270 * Based on the resource size and count, correct the base and max
5273 length = sizeof(struct lpfc_rsrc_blks);
5275 case LPFC_RSC_TYPE_FCOE_RPI:
5276 phba->sli4_hba.rpi_bmask = kzalloc(longs *
5277 sizeof(unsigned long),
5279 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5283 phba->sli4_hba.rpi_ids = kzalloc(rsrc_id_cnt *
5286 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5287 kfree(phba->sli4_hba.rpi_bmask);
5293 * The next_rpi was initialized with the maximum available
5294 * count but the port may allocate a smaller number. Catch
5295 * that case and update the next_rpi.
5297 phba->sli4_hba.next_rpi = rsrc_id_cnt;
5299 /* Initialize local ptrs for common extent processing later. */
5300 bmask = phba->sli4_hba.rpi_bmask;
5301 ids = phba->sli4_hba.rpi_ids;
5302 ext_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5304 case LPFC_RSC_TYPE_FCOE_VPI:
5305 phba->vpi_bmask = kzalloc(longs *
5306 sizeof(unsigned long),
5308 if (unlikely(!phba->vpi_bmask)) {
5312 phba->vpi_ids = kzalloc(rsrc_id_cnt *
5315 if (unlikely(!phba->vpi_ids)) {
5316 kfree(phba->vpi_bmask);
5321 /* Initialize local ptrs for common extent processing later. */
5322 bmask = phba->vpi_bmask;
5323 ids = phba->vpi_ids;
5324 ext_blk_list = &phba->lpfc_vpi_blk_list;
5326 case LPFC_RSC_TYPE_FCOE_XRI:
5327 phba->sli4_hba.xri_bmask = kzalloc(longs *
5328 sizeof(unsigned long),
5330 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5334 phba->sli4_hba.max_cfg_param.xri_used = 0;
5335 phba->sli4_hba.xri_ids = kzalloc(rsrc_id_cnt *
5338 if (unlikely(!phba->sli4_hba.xri_ids)) {
5339 kfree(phba->sli4_hba.xri_bmask);
5344 /* Initialize local ptrs for common extent processing later. */
5345 bmask = phba->sli4_hba.xri_bmask;
5346 ids = phba->sli4_hba.xri_ids;
5347 ext_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5349 case LPFC_RSC_TYPE_FCOE_VFI:
5350 phba->sli4_hba.vfi_bmask = kzalloc(longs *
5351 sizeof(unsigned long),
5353 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5357 phba->sli4_hba.vfi_ids = kzalloc(rsrc_id_cnt *
5360 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5361 kfree(phba->sli4_hba.vfi_bmask);
5366 /* Initialize local ptrs for common extent processing later. */
5367 bmask = phba->sli4_hba.vfi_bmask;
5368 ids = phba->sli4_hba.vfi_ids;
5369 ext_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5372 /* Unsupported Opcode. Fail call. */
5376 ext_blk_list = NULL;
5381 * Complete initializing the extent configuration with the
5382 * allocated ids assigned to this function. The bitmask serves
5383 * as an index into the array and manages the available ids. The
5384 * array just stores the ids communicated to the port via the wqes.
5386 for (i = 0, j = 0, k = 0; i < rsrc_cnt; i++) {
5388 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_0,
5391 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_1,
5394 rsrc_blks = kzalloc(length, GFP_KERNEL);
5395 if (unlikely(!rsrc_blks)) {
5401 rsrc_blks->rsrc_start = rsrc_id;
5402 rsrc_blks->rsrc_size = rsrc_size;
5403 list_add_tail(&rsrc_blks->list, ext_blk_list);
5404 rsrc_start = rsrc_id;
5405 if ((type == LPFC_RSC_TYPE_FCOE_XRI) && (j == 0))
5406 phba->sli4_hba.scsi_xri_start = rsrc_start +
5407 lpfc_sli4_get_els_iocb_cnt(phba);
5409 while (rsrc_id < (rsrc_start + rsrc_size)) {
5414 /* Entire word processed. Get next word.*/
5419 lpfc_sli4_mbox_cmd_free(phba, mbox);
5424 * lpfc_sli4_dealloc_extent - Deallocate an SLI4 resource extent.
5425 * @phba: Pointer to HBA context object.
5426 * @type: the extent's type.
5428 * This function deallocates all extents of a particular resource type.
5429 * SLI4 does not allow for deallocating a particular extent range. It
5430 * is the caller's responsibility to release all kernel memory resources.
5433 lpfc_sli4_dealloc_extent(struct lpfc_hba *phba, uint16_t type)
5436 uint32_t length, mbox_tmo = 0;
5438 struct lpfc_mbx_dealloc_rsrc_extents *dealloc_rsrc;
5439 struct lpfc_rsrc_blks *rsrc_blk, *rsrc_blk_next;
5441 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5446 * This function sends an embedded mailbox because it only sends the
5447 * the resource type. All extents of this type are released by the
5450 length = (sizeof(struct lpfc_mbx_dealloc_rsrc_extents) -
5451 sizeof(struct lpfc_sli4_cfg_mhdr));
5452 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5453 LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT,
5454 length, LPFC_SLI4_MBX_EMBED);
5456 /* Send an extents count of 0 - the dealloc doesn't use it. */
5457 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5458 LPFC_SLI4_MBX_EMBED);
5463 if (!phba->sli4_hba.intr_enable)
5464 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5466 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5467 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5474 dealloc_rsrc = &mbox->u.mqe.un.dealloc_rsrc_extents;
5475 if (bf_get(lpfc_mbox_hdr_status,
5476 &dealloc_rsrc->header.cfg_shdr.response)) {
5477 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5478 "2919 Failed to release resource extents "
5479 "for type %d - Status 0x%x Add'l Status 0x%x. "
5480 "Resource memory not released.\n",
5482 bf_get(lpfc_mbox_hdr_status,
5483 &dealloc_rsrc->header.cfg_shdr.response),
5484 bf_get(lpfc_mbox_hdr_add_status,
5485 &dealloc_rsrc->header.cfg_shdr.response));
5490 /* Release kernel memory resources for the specific type. */
5492 case LPFC_RSC_TYPE_FCOE_VPI:
5493 kfree(phba->vpi_bmask);
5494 kfree(phba->vpi_ids);
5495 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5496 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5497 &phba->lpfc_vpi_blk_list, list) {
5498 list_del_init(&rsrc_blk->list);
5502 case LPFC_RSC_TYPE_FCOE_XRI:
5503 kfree(phba->sli4_hba.xri_bmask);
5504 kfree(phba->sli4_hba.xri_ids);
5505 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5506 &phba->sli4_hba.lpfc_xri_blk_list, list) {
5507 list_del_init(&rsrc_blk->list);
5511 case LPFC_RSC_TYPE_FCOE_VFI:
5512 kfree(phba->sli4_hba.vfi_bmask);
5513 kfree(phba->sli4_hba.vfi_ids);
5514 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5515 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5516 &phba->sli4_hba.lpfc_vfi_blk_list, list) {
5517 list_del_init(&rsrc_blk->list);
5521 case LPFC_RSC_TYPE_FCOE_RPI:
5522 /* RPI bitmask and physical id array are cleaned up earlier. */
5523 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5524 &phba->sli4_hba.lpfc_rpi_blk_list, list) {
5525 list_del_init(&rsrc_blk->list);
5533 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5536 mempool_free(mbox, phba->mbox_mem_pool);
5541 * lpfc_sli4_alloc_resource_identifiers - Allocate all SLI4 resource extents.
5542 * @phba: Pointer to HBA context object.
5544 * This function allocates all SLI4 resource identifiers.
5547 lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba *phba)
5549 int i, rc, error = 0;
5550 uint16_t count, base;
5551 unsigned long longs;
5553 if (!phba->sli4_hba.rpi_hdrs_in_use)
5554 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
5555 if (phba->sli4_hba.extents_in_use) {
5557 * The port supports resource extents. The XRI, VPI, VFI, RPI
5558 * resource extent count must be read and allocated before
5559 * provisioning the resource id arrays.
5561 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
5562 LPFC_IDX_RSRC_RDY) {
5564 * Extent-based resources are set - the driver could
5565 * be in a port reset. Figure out if any corrective
5566 * actions need to be taken.
5568 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5569 LPFC_RSC_TYPE_FCOE_VFI);
5572 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5573 LPFC_RSC_TYPE_FCOE_VPI);
5576 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5577 LPFC_RSC_TYPE_FCOE_XRI);
5580 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5581 LPFC_RSC_TYPE_FCOE_RPI);
5586 * It's possible that the number of resources
5587 * provided to this port instance changed between
5588 * resets. Detect this condition and reallocate
5589 * resources. Otherwise, there is no action.
5592 lpfc_printf_log(phba, KERN_INFO,
5593 LOG_MBOX | LOG_INIT,
5594 "2931 Detected extent resource "
5595 "change. Reallocating all "
5597 rc = lpfc_sli4_dealloc_extent(phba,
5598 LPFC_RSC_TYPE_FCOE_VFI);
5599 rc = lpfc_sli4_dealloc_extent(phba,
5600 LPFC_RSC_TYPE_FCOE_VPI);
5601 rc = lpfc_sli4_dealloc_extent(phba,
5602 LPFC_RSC_TYPE_FCOE_XRI);
5603 rc = lpfc_sli4_dealloc_extent(phba,
5604 LPFC_RSC_TYPE_FCOE_RPI);
5609 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
5613 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
5617 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
5621 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
5624 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
5629 * The port does not support resource extents. The XRI, VPI,
5630 * VFI, RPI resource ids were determined from READ_CONFIG.
5631 * Just allocate the bitmasks and provision the resource id
5632 * arrays. If a port reset is active, the resources don't
5633 * need any action - just exit.
5635 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
5636 LPFC_IDX_RSRC_RDY) {
5637 lpfc_sli4_dealloc_resource_identifiers(phba);
5638 lpfc_sli4_remove_rpis(phba);
5641 count = phba->sli4_hba.max_cfg_param.max_rpi;
5643 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5644 "3279 Invalid provisioning of "
5649 base = phba->sli4_hba.max_cfg_param.rpi_base;
5650 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5651 phba->sli4_hba.rpi_bmask = kzalloc(longs *
5652 sizeof(unsigned long),
5654 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5658 phba->sli4_hba.rpi_ids = kzalloc(count *
5661 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5663 goto free_rpi_bmask;
5666 for (i = 0; i < count; i++)
5667 phba->sli4_hba.rpi_ids[i] = base + i;
5670 count = phba->sli4_hba.max_cfg_param.max_vpi;
5672 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5673 "3280 Invalid provisioning of "
5678 base = phba->sli4_hba.max_cfg_param.vpi_base;
5679 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5680 phba->vpi_bmask = kzalloc(longs *
5681 sizeof(unsigned long),
5683 if (unlikely(!phba->vpi_bmask)) {
5687 phba->vpi_ids = kzalloc(count *
5690 if (unlikely(!phba->vpi_ids)) {
5692 goto free_vpi_bmask;
5695 for (i = 0; i < count; i++)
5696 phba->vpi_ids[i] = base + i;
5699 count = phba->sli4_hba.max_cfg_param.max_xri;
5701 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5702 "3281 Invalid provisioning of "
5707 base = phba->sli4_hba.max_cfg_param.xri_base;
5708 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5709 phba->sli4_hba.xri_bmask = kzalloc(longs *
5710 sizeof(unsigned long),
5712 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5716 phba->sli4_hba.max_cfg_param.xri_used = 0;
5717 phba->sli4_hba.xri_ids = kzalloc(count *
5720 if (unlikely(!phba->sli4_hba.xri_ids)) {
5722 goto free_xri_bmask;
5725 for (i = 0; i < count; i++)
5726 phba->sli4_hba.xri_ids[i] = base + i;
5729 count = phba->sli4_hba.max_cfg_param.max_vfi;
5731 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5732 "3282 Invalid provisioning of "
5737 base = phba->sli4_hba.max_cfg_param.vfi_base;
5738 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5739 phba->sli4_hba.vfi_bmask = kzalloc(longs *
5740 sizeof(unsigned long),
5742 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5746 phba->sli4_hba.vfi_ids = kzalloc(count *
5749 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5751 goto free_vfi_bmask;
5754 for (i = 0; i < count; i++)
5755 phba->sli4_hba.vfi_ids[i] = base + i;
5758 * Mark all resources ready. An HBA reset doesn't need
5759 * to reset the initialization.
5761 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
5767 kfree(phba->sli4_hba.vfi_bmask);
5769 kfree(phba->sli4_hba.xri_ids);
5771 kfree(phba->sli4_hba.xri_bmask);
5773 kfree(phba->vpi_ids);
5775 kfree(phba->vpi_bmask);
5777 kfree(phba->sli4_hba.rpi_ids);
5779 kfree(phba->sli4_hba.rpi_bmask);
5785 * lpfc_sli4_dealloc_resource_identifiers - Deallocate all SLI4 resource extents.
5786 * @phba: Pointer to HBA context object.
5788 * This function allocates the number of elements for the specified
5792 lpfc_sli4_dealloc_resource_identifiers(struct lpfc_hba *phba)
5794 if (phba->sli4_hba.extents_in_use) {
5795 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
5796 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
5797 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
5798 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
5800 kfree(phba->vpi_bmask);
5801 kfree(phba->vpi_ids);
5802 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5803 kfree(phba->sli4_hba.xri_bmask);
5804 kfree(phba->sli4_hba.xri_ids);
5805 kfree(phba->sli4_hba.vfi_bmask);
5806 kfree(phba->sli4_hba.vfi_ids);
5807 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5808 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5815 * lpfc_sli4_get_allocated_extnts - Get the port's allocated extents.
5816 * @phba: Pointer to HBA context object.
5817 * @type: The resource extent type.
5818 * @extnt_count: buffer to hold port extent count response
5819 * @extnt_size: buffer to hold port extent size response.
5821 * This function calls the port to read the host allocated extents
5822 * for a particular type.
5825 lpfc_sli4_get_allocated_extnts(struct lpfc_hba *phba, uint16_t type,
5826 uint16_t *extnt_cnt, uint16_t *extnt_size)
5830 uint16_t curr_blks = 0;
5831 uint32_t req_len, emb_len;
5832 uint32_t alloc_len, mbox_tmo;
5833 struct list_head *blk_list_head;
5834 struct lpfc_rsrc_blks *rsrc_blk;
5836 void *virtaddr = NULL;
5837 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5838 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5839 union lpfc_sli4_cfg_shdr *shdr;
5842 case LPFC_RSC_TYPE_FCOE_VPI:
5843 blk_list_head = &phba->lpfc_vpi_blk_list;
5845 case LPFC_RSC_TYPE_FCOE_XRI:
5846 blk_list_head = &phba->sli4_hba.lpfc_xri_blk_list;
5848 case LPFC_RSC_TYPE_FCOE_VFI:
5849 blk_list_head = &phba->sli4_hba.lpfc_vfi_blk_list;
5851 case LPFC_RSC_TYPE_FCOE_RPI:
5852 blk_list_head = &phba->sli4_hba.lpfc_rpi_blk_list;
5858 /* Count the number of extents currently allocatd for this type. */
5859 list_for_each_entry(rsrc_blk, blk_list_head, list) {
5860 if (curr_blks == 0) {
5862 * The GET_ALLOCATED mailbox does not return the size,
5863 * just the count. The size should be just the size
5864 * stored in the current allocated block and all sizes
5865 * for an extent type are the same so set the return
5868 *extnt_size = rsrc_blk->rsrc_size;
5873 /* Calculate the total requested length of the dma memory. */
5874 req_len = curr_blks * sizeof(uint16_t);
5877 * Calculate the size of an embedded mailbox. The uint32_t
5878 * accounts for extents-specific word.
5880 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
5884 * Presume the allocation and response will fit into an embedded
5885 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5887 emb = LPFC_SLI4_MBX_EMBED;
5889 if (req_len > emb_len) {
5890 req_len = curr_blks * sizeof(uint16_t) +
5891 sizeof(union lpfc_sli4_cfg_shdr) +
5893 emb = LPFC_SLI4_MBX_NEMBED;
5896 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5899 memset(mbox, 0, sizeof(LPFC_MBOXQ_t));
5901 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5902 LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT,
5904 if (alloc_len < req_len) {
5905 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5906 "2983 Allocated DMA memory size (x%x) is "
5907 "less than the requested DMA memory "
5908 "size (x%x)\n", alloc_len, req_len);
5912 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, curr_blks, type, emb);
5918 if (!phba->sli4_hba.intr_enable)
5919 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5921 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5922 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5931 * Figure out where the response is located. Then get local pointers
5932 * to the response data. The port does not guarantee to respond to
5933 * all extents counts request so update the local variable with the
5934 * allocated count from the port.
5936 if (emb == LPFC_SLI4_MBX_EMBED) {
5937 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
5938 shdr = &rsrc_ext->header.cfg_shdr;
5939 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
5941 virtaddr = mbox->sge_array->addr[0];
5942 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
5943 shdr = &n_rsrc->cfg_shdr;
5944 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
5947 if (bf_get(lpfc_mbox_hdr_status, &shdr->response)) {
5948 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5949 "2984 Failed to read allocated resources "
5950 "for type %d - Status 0x%x Add'l Status 0x%x.\n",
5952 bf_get(lpfc_mbox_hdr_status, &shdr->response),
5953 bf_get(lpfc_mbox_hdr_add_status, &shdr->response));
5958 lpfc_sli4_mbox_cmd_free(phba, mbox);
5963 * lpfc_sli4_repost_els_sgl_list - Repsot the els buffers sgl pages as block
5964 * @phba: pointer to lpfc hba data structure.
5966 * This routine walks the list of els buffers that have been allocated and
5967 * repost them to the port by using SGL block post. This is needed after a
5968 * pci_function_reset/warm_start or start. It attempts to construct blocks
5969 * of els buffer sgls which contains contiguous xris and uses the non-embedded
5970 * SGL block post mailbox commands to post them to the port. For single els
5971 * buffer sgl with non-contiguous xri, if any, it shall use embedded SGL post
5972 * mailbox command for posting.
5974 * Returns: 0 = success, non-zero failure.
5977 lpfc_sli4_repost_els_sgl_list(struct lpfc_hba *phba)
5979 struct lpfc_sglq *sglq_entry = NULL;
5980 struct lpfc_sglq *sglq_entry_next = NULL;
5981 struct lpfc_sglq *sglq_entry_first = NULL;
5982 int status, post_cnt = 0, num_posted = 0, block_cnt = 0;
5983 int last_xritag = NO_XRI;
5984 LIST_HEAD(prep_sgl_list);
5985 LIST_HEAD(blck_sgl_list);
5986 LIST_HEAD(allc_sgl_list);
5987 LIST_HEAD(post_sgl_list);
5988 LIST_HEAD(free_sgl_list);
5990 spin_lock(&phba->hbalock);
5991 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &allc_sgl_list);
5992 spin_unlock(&phba->hbalock);
5994 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
5995 &allc_sgl_list, list) {
5996 list_del_init(&sglq_entry->list);
5998 if ((last_xritag != NO_XRI) &&
5999 (sglq_entry->sli4_xritag != last_xritag + 1)) {
6000 /* a hole in xri block, form a sgl posting block */
6001 list_splice_init(&prep_sgl_list, &blck_sgl_list);
6002 post_cnt = block_cnt - 1;
6003 /* prepare list for next posting block */
6004 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6007 /* prepare list for next posting block */
6008 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6009 /* enough sgls for non-embed sgl mbox command */
6010 if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
6011 list_splice_init(&prep_sgl_list,
6013 post_cnt = block_cnt;
6019 /* keep track of last sgl's xritag */
6020 last_xritag = sglq_entry->sli4_xritag;
6022 /* end of repost sgl list condition for els buffers */
6023 if (num_posted == phba->sli4_hba.els_xri_cnt) {
6024 if (post_cnt == 0) {
6025 list_splice_init(&prep_sgl_list,
6027 post_cnt = block_cnt;
6028 } else if (block_cnt == 1) {
6029 status = lpfc_sli4_post_sgl(phba,
6030 sglq_entry->phys, 0,
6031 sglq_entry->sli4_xritag);
6033 /* successful, put sgl to posted list */
6034 list_add_tail(&sglq_entry->list,
6037 /* Failure, put sgl to free list */
6038 lpfc_printf_log(phba, KERN_WARNING,
6040 "3159 Failed to post els "
6041 "sgl, xritag:x%x\n",
6042 sglq_entry->sli4_xritag);
6043 list_add_tail(&sglq_entry->list,
6045 spin_lock_irq(&phba->hbalock);
6046 phba->sli4_hba.els_xri_cnt--;
6047 spin_unlock_irq(&phba->hbalock);
6052 /* continue until a nembed page worth of sgls */
6056 /* post the els buffer list sgls as a block */
6057 status = lpfc_sli4_post_els_sgl_list(phba, &blck_sgl_list,
6061 /* success, put sgl list to posted sgl list */
6062 list_splice_init(&blck_sgl_list, &post_sgl_list);
6064 /* Failure, put sgl list to free sgl list */
6065 sglq_entry_first = list_first_entry(&blck_sgl_list,
6068 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6069 "3160 Failed to post els sgl-list, "
6071 sglq_entry_first->sli4_xritag,
6072 (sglq_entry_first->sli4_xritag +
6074 list_splice_init(&blck_sgl_list, &free_sgl_list);
6075 spin_lock_irq(&phba->hbalock);
6076 phba->sli4_hba.els_xri_cnt -= post_cnt;
6077 spin_unlock_irq(&phba->hbalock);
6080 /* don't reset xirtag due to hole in xri block */
6082 last_xritag = NO_XRI;
6084 /* reset els sgl post count for next round of posting */
6088 /* free the els sgls failed to post */
6089 lpfc_free_sgl_list(phba, &free_sgl_list);
6091 /* push els sgls posted to the availble list */
6092 if (!list_empty(&post_sgl_list)) {
6093 spin_lock(&phba->hbalock);
6094 list_splice_init(&post_sgl_list,
6095 &phba->sli4_hba.lpfc_sgl_list);
6096 spin_unlock(&phba->hbalock);
6098 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6099 "3161 Failure to post els sgl to port.\n");
6106 * lpfc_sli4_hba_setup - SLI4 device intialization PCI function
6107 * @phba: Pointer to HBA context object.
6109 * This function is the main SLI4 device intialization PCI function. This
6110 * function is called by the HBA intialization code, HBA reset code and
6111 * HBA error attention handler code. Caller is not required to hold any
6115 lpfc_sli4_hba_setup(struct lpfc_hba *phba)
6118 LPFC_MBOXQ_t *mboxq;
6119 struct lpfc_mqe *mqe;
6122 uint32_t ftr_rsp = 0;
6123 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
6124 struct lpfc_vport *vport = phba->pport;
6125 struct lpfc_dmabuf *mp;
6127 /* Perform a PCI function reset to start from clean */
6128 rc = lpfc_pci_function_reset(phba);
6132 /* Check the HBA Host Status Register for readyness */
6133 rc = lpfc_sli4_post_status_check(phba);
6137 spin_lock_irq(&phba->hbalock);
6138 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
6139 spin_unlock_irq(&phba->hbalock);
6143 * Allocate a single mailbox container for initializing the
6146 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6150 /* Issue READ_REV to collect vpd and FW information. */
6151 vpd_size = SLI4_PAGE_SIZE;
6152 vpd = kzalloc(vpd_size, GFP_KERNEL);
6158 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
6163 mqe = &mboxq->u.mqe;
6164 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
6165 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev))
6166 phba->hba_flag |= HBA_FCOE_MODE;
6168 phba->hba_flag &= ~HBA_FCOE_MODE;
6170 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
6172 phba->hba_flag |= HBA_FIP_SUPPORT;
6174 phba->hba_flag &= ~HBA_FIP_SUPPORT;
6176 phba->hba_flag &= ~HBA_FCP_IOQ_FLUSH;
6178 if (phba->sli_rev != LPFC_SLI_REV4) {
6179 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6180 "0376 READ_REV Error. SLI Level %d "
6181 "FCoE enabled %d\n",
6182 phba->sli_rev, phba->hba_flag & HBA_FCOE_MODE);
6189 * Continue initialization with default values even if driver failed
6190 * to read FCoE param config regions, only read parameters if the
6193 if (phba->hba_flag & HBA_FCOE_MODE &&
6194 lpfc_sli4_read_fcoe_params(phba))
6195 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_INIT,
6196 "2570 Failed to read FCoE parameters\n");
6199 * Retrieve sli4 device physical port name, failure of doing it
6200 * is considered as non-fatal.
6202 rc = lpfc_sli4_retrieve_pport_name(phba);
6204 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6205 "3080 Successful retrieving SLI4 device "
6206 "physical port name: %s.\n", phba->Port);
6209 * Evaluate the read rev and vpd data. Populate the driver
6210 * state with the results. If this routine fails, the failure
6211 * is not fatal as the driver will use generic values.
6213 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
6214 if (unlikely(!rc)) {
6215 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6216 "0377 Error %d parsing vpd. "
6217 "Using defaults.\n", rc);
6222 /* Save information as VPD data */
6223 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
6224 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
6225 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
6226 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
6228 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
6230 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
6232 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
6234 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
6235 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
6236 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
6237 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
6238 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
6239 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
6240 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6241 "(%d):0380 READ_REV Status x%x "
6242 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
6243 mboxq->vport ? mboxq->vport->vpi : 0,
6244 bf_get(lpfc_mqe_status, mqe),
6245 phba->vpd.rev.opFwName,
6246 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
6247 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
6250 * Discover the port's supported feature set and match it against the
6253 lpfc_request_features(phba, mboxq);
6254 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6261 * The port must support FCP initiator mode as this is the
6262 * only mode running in the host.
6264 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
6265 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6266 "0378 No support for fcpi mode.\n");
6269 if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh, &mqe->un.req_ftrs))
6270 phba->sli3_options |= LPFC_SLI4_PERFH_ENABLED;
6272 phba->sli3_options &= ~LPFC_SLI4_PERFH_ENABLED;
6274 * If the port cannot support the host's requested features
6275 * then turn off the global config parameters to disable the
6276 * feature in the driver. This is not a fatal error.
6278 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
6279 if (phba->cfg_enable_bg) {
6280 if (bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))
6281 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
6286 if (phba->max_vpi && phba->cfg_enable_npiv &&
6287 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6291 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6292 "0379 Feature Mismatch Data: x%08x %08x "
6293 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
6294 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
6295 phba->cfg_enable_npiv, phba->max_vpi);
6296 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
6297 phba->cfg_enable_bg = 0;
6298 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6299 phba->cfg_enable_npiv = 0;
6302 /* These SLI3 features are assumed in SLI4 */
6303 spin_lock_irq(&phba->hbalock);
6304 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
6305 spin_unlock_irq(&phba->hbalock);
6308 * Allocate all resources (xri,rpi,vpi,vfi) now. Subsequent
6309 * calls depends on these resources to complete port setup.
6311 rc = lpfc_sli4_alloc_resource_identifiers(phba);
6313 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6314 "2920 Failed to alloc Resource IDs "
6319 /* Read the port's service parameters. */
6320 rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
6322 phba->link_state = LPFC_HBA_ERROR;
6327 mboxq->vport = vport;
6328 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6329 mp = (struct lpfc_dmabuf *) mboxq->context1;
6330 if (rc == MBX_SUCCESS) {
6331 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
6336 * This memory was allocated by the lpfc_read_sparam routine. Release
6337 * it to the mbuf pool.
6339 lpfc_mbuf_free(phba, mp->virt, mp->phys);
6341 mboxq->context1 = NULL;
6343 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6344 "0382 READ_SPARAM command failed "
6345 "status %d, mbxStatus x%x\n",
6346 rc, bf_get(lpfc_mqe_status, mqe));
6347 phba->link_state = LPFC_HBA_ERROR;
6352 lpfc_update_vport_wwn(vport);
6354 /* Update the fc_host data structures with new wwn. */
6355 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
6356 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
6358 /* update host els and scsi xri-sgl sizes and mappings */
6359 rc = lpfc_sli4_xri_sgl_update(phba);
6361 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6362 "1400 Failed to update xri-sgl size and "
6363 "mapping: %d\n", rc);
6367 /* register the els sgl pool to the port */
6368 rc = lpfc_sli4_repost_els_sgl_list(phba);
6370 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6371 "0582 Error %d during els sgl post "
6377 /* register the allocated scsi sgl pool to the port */
6378 rc = lpfc_sli4_repost_scsi_sgl_list(phba);
6380 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6381 "0383 Error %d during scsi sgl post "
6383 /* Some Scsi buffers were moved to the abort scsi list */
6384 /* A pci function reset will repost them */
6389 /* Post the rpi header region to the device. */
6390 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
6392 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6393 "0393 Error %d during rpi post operation\n",
6398 lpfc_sli4_node_prep(phba);
6400 /* Create all the SLI4 queues */
6401 rc = lpfc_sli4_queue_create(phba);
6403 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6404 "3089 Failed to allocate queues\n");
6406 goto out_stop_timers;
6408 /* Set up all the queues to the device */
6409 rc = lpfc_sli4_queue_setup(phba);
6411 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6412 "0381 Error %d during queue setup.\n ", rc);
6413 goto out_destroy_queue;
6416 /* Arm the CQs and then EQs on device */
6417 lpfc_sli4_arm_cqeq_intr(phba);
6419 /* Indicate device interrupt mode */
6420 phba->sli4_hba.intr_enable = 1;
6422 /* Allow asynchronous mailbox command to go through */
6423 spin_lock_irq(&phba->hbalock);
6424 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
6425 spin_unlock_irq(&phba->hbalock);
6427 /* Post receive buffers to the device */
6428 lpfc_sli4_rb_setup(phba);
6430 /* Reset HBA FCF states after HBA reset */
6431 phba->fcf.fcf_flag = 0;
6432 phba->fcf.current_rec.flag = 0;
6434 /* Start the ELS watchdog timer */
6435 mod_timer(&vport->els_tmofunc,
6436 jiffies + HZ * (phba->fc_ratov * 2));
6438 /* Start heart beat timer */
6439 mod_timer(&phba->hb_tmofunc,
6440 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
6441 phba->hb_outstanding = 0;
6442 phba->last_completion_time = jiffies;
6444 /* Start error attention (ERATT) polling timer */
6445 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
6447 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
6448 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
6449 rc = pci_enable_pcie_error_reporting(phba->pcidev);
6451 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6452 "2829 This device supports "
6453 "Advanced Error Reporting (AER)\n");
6454 spin_lock_irq(&phba->hbalock);
6455 phba->hba_flag |= HBA_AER_ENABLED;
6456 spin_unlock_irq(&phba->hbalock);
6458 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6459 "2830 This device does not support "
6460 "Advanced Error Reporting (AER)\n");
6461 phba->cfg_aer_support = 0;
6466 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
6468 * The FC Port needs to register FCFI (index 0)
6470 lpfc_reg_fcfi(phba, mboxq);
6471 mboxq->vport = phba->pport;
6472 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6473 if (rc != MBX_SUCCESS)
6474 goto out_unset_queue;
6476 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi,
6477 &mboxq->u.mqe.un.reg_fcfi);
6479 /* Check if the port is configured to be disabled */
6480 lpfc_sli_read_link_ste(phba);
6484 * The port is ready, set the host's link state to LINK_DOWN
6485 * in preparation for link interrupts.
6487 spin_lock_irq(&phba->hbalock);
6488 phba->link_state = LPFC_LINK_DOWN;
6489 spin_unlock_irq(&phba->hbalock);
6490 if (!(phba->hba_flag & HBA_FCOE_MODE) &&
6491 (phba->hba_flag & LINK_DISABLED)) {
6492 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
6493 "3103 Adapter Link is disabled.\n");
6494 lpfc_down_link(phba, mboxq);
6495 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6496 if (rc != MBX_SUCCESS) {
6497 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
6498 "3104 Adapter failed to issue "
6499 "DOWN_LINK mbox cmd, rc:x%x\n", rc);
6500 goto out_unset_queue;
6502 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
6503 /* don't perform init_link on SLI4 FC port loopback test */
6504 if (!(phba->link_flag & LS_LOOPBACK_MODE)) {
6505 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
6507 goto out_unset_queue;
6510 mempool_free(mboxq, phba->mbox_mem_pool);
6513 /* Unset all the queues set up in this routine when error out */
6514 lpfc_sli4_queue_unset(phba);
6516 lpfc_sli4_queue_destroy(phba);
6518 lpfc_stop_hba_timers(phba);
6520 mempool_free(mboxq, phba->mbox_mem_pool);
6525 * lpfc_mbox_timeout - Timeout call back function for mbox timer
6526 * @ptr: context object - pointer to hba structure.
6528 * This is the callback function for mailbox timer. The mailbox
6529 * timer is armed when a new mailbox command is issued and the timer
6530 * is deleted when the mailbox complete. The function is called by
6531 * the kernel timer code when a mailbox does not complete within
6532 * expected time. This function wakes up the worker thread to
6533 * process the mailbox timeout and returns. All the processing is
6534 * done by the worker thread function lpfc_mbox_timeout_handler.
6537 lpfc_mbox_timeout(unsigned long ptr)
6539 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
6540 unsigned long iflag;
6541 uint32_t tmo_posted;
6543 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
6544 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
6546 phba->pport->work_port_events |= WORKER_MBOX_TMO;
6547 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
6550 lpfc_worker_wake_up(phba);
6556 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
6557 * @phba: Pointer to HBA context object.
6559 * This function is called from worker thread when a mailbox command times out.
6560 * The caller is not required to hold any locks. This function will reset the
6561 * HBA and recover all the pending commands.
6564 lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
6566 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
6567 MAILBOX_t *mb = &pmbox->u.mb;
6568 struct lpfc_sli *psli = &phba->sli;
6569 struct lpfc_sli_ring *pring;
6571 /* Check the pmbox pointer first. There is a race condition
6572 * between the mbox timeout handler getting executed in the
6573 * worklist and the mailbox actually completing. When this
6574 * race condition occurs, the mbox_active will be NULL.
6576 spin_lock_irq(&phba->hbalock);
6577 if (pmbox == NULL) {
6578 lpfc_printf_log(phba, KERN_WARNING,
6580 "0353 Active Mailbox cleared - mailbox timeout "
6582 spin_unlock_irq(&phba->hbalock);
6586 /* Mbox cmd <mbxCommand> timeout */
6587 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6588 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
6590 phba->pport->port_state,
6592 phba->sli.mbox_active);
6593 spin_unlock_irq(&phba->hbalock);
6595 /* Setting state unknown so lpfc_sli_abort_iocb_ring
6596 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
6597 * it to fail all outstanding SCSI IO.
6599 spin_lock_irq(&phba->pport->work_port_lock);
6600 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
6601 spin_unlock_irq(&phba->pport->work_port_lock);
6602 spin_lock_irq(&phba->hbalock);
6603 phba->link_state = LPFC_LINK_UNKNOWN;
6604 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
6605 spin_unlock_irq(&phba->hbalock);
6607 pring = &psli->ring[psli->fcp_ring];
6608 lpfc_sli_abort_iocb_ring(phba, pring);
6610 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6611 "0345 Resetting board due to mailbox timeout\n");
6613 /* Reset the HBA device */
6614 lpfc_reset_hba(phba);
6618 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
6619 * @phba: Pointer to HBA context object.
6620 * @pmbox: Pointer to mailbox object.
6621 * @flag: Flag indicating how the mailbox need to be processed.
6623 * This function is called by discovery code and HBA management code
6624 * to submit a mailbox command to firmware with SLI-3 interface spec. This
6625 * function gets the hbalock to protect the data structures.
6626 * The mailbox command can be submitted in polling mode, in which case
6627 * this function will wait in a polling loop for the completion of the
6629 * If the mailbox is submitted in no_wait mode (not polling) the
6630 * function will submit the command and returns immediately without waiting
6631 * for the mailbox completion. The no_wait is supported only when HBA
6632 * is in SLI2/SLI3 mode - interrupts are enabled.
6633 * The SLI interface allows only one mailbox pending at a time. If the
6634 * mailbox is issued in polling mode and there is already a mailbox
6635 * pending, then the function will return an error. If the mailbox is issued
6636 * in NO_WAIT mode and there is a mailbox pending already, the function
6637 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
6638 * The sli layer owns the mailbox object until the completion of mailbox
6639 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
6640 * return codes the caller owns the mailbox command after the return of
6644 lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
6648 struct lpfc_sli *psli = &phba->sli;
6649 uint32_t status, evtctr;
6650 uint32_t ha_copy, hc_copy;
6652 unsigned long timeout;
6653 unsigned long drvr_flag = 0;
6654 uint32_t word0, ldata;
6655 void __iomem *to_slim;
6656 int processing_queue = 0;
6658 spin_lock_irqsave(&phba->hbalock, drvr_flag);
6660 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6661 /* processing mbox queue from intr_handler */
6662 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
6663 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6666 processing_queue = 1;
6667 pmbox = lpfc_mbox_get(phba);
6669 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6674 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
6675 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
6677 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6678 lpfc_printf_log(phba, KERN_ERR,
6679 LOG_MBOX | LOG_VPORT,
6680 "1806 Mbox x%x failed. No vport\n",
6681 pmbox->u.mb.mbxCommand);
6683 goto out_not_finished;
6687 /* If the PCI channel is in offline state, do not post mbox. */
6688 if (unlikely(pci_channel_offline(phba->pcidev))) {
6689 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6690 goto out_not_finished;
6693 /* If HBA has a deferred error attention, fail the iocb. */
6694 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
6695 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6696 goto out_not_finished;
6702 status = MBX_SUCCESS;
6704 if (phba->link_state == LPFC_HBA_ERROR) {
6705 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6707 /* Mbox command <mbxCommand> cannot issue */
6708 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6709 "(%d):0311 Mailbox command x%x cannot "
6710 "issue Data: x%x x%x\n",
6711 pmbox->vport ? pmbox->vport->vpi : 0,
6712 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
6713 goto out_not_finished;
6716 if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT) {
6717 if (lpfc_readl(phba->HCregaddr, &hc_copy) ||
6718 !(hc_copy & HC_MBINT_ENA)) {
6719 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6720 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6721 "(%d):2528 Mailbox command x%x cannot "
6722 "issue Data: x%x x%x\n",
6723 pmbox->vport ? pmbox->vport->vpi : 0,
6724 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
6725 goto out_not_finished;
6729 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
6730 /* Polling for a mbox command when another one is already active
6731 * is not allowed in SLI. Also, the driver must have established
6732 * SLI2 mode to queue and process multiple mbox commands.
6735 if (flag & MBX_POLL) {
6736 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6738 /* Mbox command <mbxCommand> cannot issue */
6739 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6740 "(%d):2529 Mailbox command x%x "
6741 "cannot issue Data: x%x x%x\n",
6742 pmbox->vport ? pmbox->vport->vpi : 0,
6743 pmbox->u.mb.mbxCommand,
6744 psli->sli_flag, flag);
6745 goto out_not_finished;
6748 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
6749 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6750 /* Mbox command <mbxCommand> cannot issue */
6751 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6752 "(%d):2530 Mailbox command x%x "
6753 "cannot issue Data: x%x x%x\n",
6754 pmbox->vport ? pmbox->vport->vpi : 0,
6755 pmbox->u.mb.mbxCommand,
6756 psli->sli_flag, flag);
6757 goto out_not_finished;
6760 /* Another mailbox command is still being processed, queue this
6761 * command to be processed later.
6763 lpfc_mbox_put(phba, pmbox);
6765 /* Mbox cmd issue - BUSY */
6766 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6767 "(%d):0308 Mbox cmd issue - BUSY Data: "
6768 "x%x x%x x%x x%x\n",
6769 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
6770 mb->mbxCommand, phba->pport->port_state,
6771 psli->sli_flag, flag);
6773 psli->slistat.mbox_busy++;
6774 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6777 lpfc_debugfs_disc_trc(pmbox->vport,
6778 LPFC_DISC_TRC_MBOX_VPORT,
6779 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
6780 (uint32_t)mb->mbxCommand,
6781 mb->un.varWords[0], mb->un.varWords[1]);
6784 lpfc_debugfs_disc_trc(phba->pport,
6786 "MBOX Bsy: cmd:x%x mb:x%x x%x",
6787 (uint32_t)mb->mbxCommand,
6788 mb->un.varWords[0], mb->un.varWords[1]);
6794 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
6796 /* If we are not polling, we MUST be in SLI2 mode */
6797 if (flag != MBX_POLL) {
6798 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
6799 (mb->mbxCommand != MBX_KILL_BOARD)) {
6800 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6801 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6802 /* Mbox command <mbxCommand> cannot issue */
6803 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6804 "(%d):2531 Mailbox command x%x "
6805 "cannot issue Data: x%x x%x\n",
6806 pmbox->vport ? pmbox->vport->vpi : 0,
6807 pmbox->u.mb.mbxCommand,
6808 psli->sli_flag, flag);
6809 goto out_not_finished;
6811 /* timeout active mbox command */
6812 mod_timer(&psli->mbox_tmo, (jiffies +
6813 (HZ * lpfc_mbox_tmo_val(phba, pmbox))));
6816 /* Mailbox cmd <cmd> issue */
6817 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6818 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
6820 pmbox->vport ? pmbox->vport->vpi : 0,
6821 mb->mbxCommand, phba->pport->port_state,
6822 psli->sli_flag, flag);
6824 if (mb->mbxCommand != MBX_HEARTBEAT) {
6826 lpfc_debugfs_disc_trc(pmbox->vport,
6827 LPFC_DISC_TRC_MBOX_VPORT,
6828 "MBOX Send vport: cmd:x%x mb:x%x x%x",
6829 (uint32_t)mb->mbxCommand,
6830 mb->un.varWords[0], mb->un.varWords[1]);
6833 lpfc_debugfs_disc_trc(phba->pport,
6835 "MBOX Send: cmd:x%x mb:x%x x%x",
6836 (uint32_t)mb->mbxCommand,
6837 mb->un.varWords[0], mb->un.varWords[1]);
6841 psli->slistat.mbox_cmd++;
6842 evtctr = psli->slistat.mbox_event;
6844 /* next set own bit for the adapter and copy over command word */
6845 mb->mbxOwner = OWN_CHIP;
6847 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
6848 /* Populate mbox extension offset word. */
6849 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) {
6850 *(((uint32_t *)mb) + pmbox->mbox_offset_word)
6851 = (uint8_t *)phba->mbox_ext
6852 - (uint8_t *)phba->mbox;
6855 /* Copy the mailbox extension data */
6856 if (pmbox->in_ext_byte_len && pmbox->context2) {
6857 lpfc_sli_pcimem_bcopy(pmbox->context2,
6858 (uint8_t *)phba->mbox_ext,
6859 pmbox->in_ext_byte_len);
6861 /* Copy command data to host SLIM area */
6862 lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE);
6864 /* Populate mbox extension offset word. */
6865 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len)
6866 *(((uint32_t *)mb) + pmbox->mbox_offset_word)
6867 = MAILBOX_HBA_EXT_OFFSET;
6869 /* Copy the mailbox extension data */
6870 if (pmbox->in_ext_byte_len && pmbox->context2) {
6871 lpfc_memcpy_to_slim(phba->MBslimaddr +
6872 MAILBOX_HBA_EXT_OFFSET,
6873 pmbox->context2, pmbox->in_ext_byte_len);
6876 if (mb->mbxCommand == MBX_CONFIG_PORT) {
6877 /* copy command data into host mbox for cmpl */
6878 lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE);
6881 /* First copy mbox command data to HBA SLIM, skip past first
6883 to_slim = phba->MBslimaddr + sizeof (uint32_t);
6884 lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0],
6885 MAILBOX_CMD_SIZE - sizeof (uint32_t));
6887 /* Next copy over first word, with mbxOwner set */
6888 ldata = *((uint32_t *)mb);
6889 to_slim = phba->MBslimaddr;
6890 writel(ldata, to_slim);
6891 readl(to_slim); /* flush */
6893 if (mb->mbxCommand == MBX_CONFIG_PORT) {
6894 /* switch over to host mailbox */
6895 psli->sli_flag |= LPFC_SLI_ACTIVE;
6903 /* Set up reference to mailbox command */
6904 psli->mbox_active = pmbox;
6905 /* Interrupt board to do it */
6906 writel(CA_MBATT, phba->CAregaddr);
6907 readl(phba->CAregaddr); /* flush */
6908 /* Don't wait for it to finish, just return */
6912 /* Set up null reference to mailbox command */
6913 psli->mbox_active = NULL;
6914 /* Interrupt board to do it */
6915 writel(CA_MBATT, phba->CAregaddr);
6916 readl(phba->CAregaddr); /* flush */
6918 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
6919 /* First read mbox status word */
6920 word0 = *((uint32_t *)phba->mbox);
6921 word0 = le32_to_cpu(word0);
6923 /* First read mbox status word */
6924 if (lpfc_readl(phba->MBslimaddr, &word0)) {
6925 spin_unlock_irqrestore(&phba->hbalock,
6927 goto out_not_finished;
6931 /* Read the HBA Host Attention Register */
6932 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
6933 spin_unlock_irqrestore(&phba->hbalock,
6935 goto out_not_finished;
6937 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
6940 /* Wait for command to complete */
6941 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
6942 (!(ha_copy & HA_MBATT) &&
6943 (phba->link_state > LPFC_WARM_START))) {
6944 if (time_after(jiffies, timeout)) {
6945 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6946 spin_unlock_irqrestore(&phba->hbalock,
6948 goto out_not_finished;
6951 /* Check if we took a mbox interrupt while we were
6953 if (((word0 & OWN_CHIP) != OWN_CHIP)
6954 && (evtctr != psli->slistat.mbox_event))
6958 spin_unlock_irqrestore(&phba->hbalock,
6961 spin_lock_irqsave(&phba->hbalock, drvr_flag);
6964 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
6965 /* First copy command data */
6966 word0 = *((uint32_t *)phba->mbox);
6967 word0 = le32_to_cpu(word0);
6968 if (mb->mbxCommand == MBX_CONFIG_PORT) {
6971 /* Check real SLIM for any errors */
6972 slimword0 = readl(phba->MBslimaddr);
6973 slimmb = (MAILBOX_t *) & slimword0;
6974 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
6975 && slimmb->mbxStatus) {
6982 /* First copy command data */
6983 word0 = readl(phba->MBslimaddr);
6985 /* Read the HBA Host Attention Register */
6986 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
6987 spin_unlock_irqrestore(&phba->hbalock,
6989 goto out_not_finished;
6993 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
6994 /* copy results back to user */
6995 lpfc_sli_pcimem_bcopy(phba->mbox, mb, MAILBOX_CMD_SIZE);
6996 /* Copy the mailbox extension data */
6997 if (pmbox->out_ext_byte_len && pmbox->context2) {
6998 lpfc_sli_pcimem_bcopy(phba->mbox_ext,
7000 pmbox->out_ext_byte_len);
7003 /* First copy command data */
7004 lpfc_memcpy_from_slim(mb, phba->MBslimaddr,
7006 /* Copy the mailbox extension data */
7007 if (pmbox->out_ext_byte_len && pmbox->context2) {
7008 lpfc_memcpy_from_slim(pmbox->context2,
7010 MAILBOX_HBA_EXT_OFFSET,
7011 pmbox->out_ext_byte_len);
7015 writel(HA_MBATT, phba->HAregaddr);
7016 readl(phba->HAregaddr); /* flush */
7018 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7019 status = mb->mbxStatus;
7022 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7026 if (processing_queue) {
7027 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
7028 lpfc_mbox_cmpl_put(phba, pmbox);
7030 return MBX_NOT_FINISHED;
7034 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
7035 * @phba: Pointer to HBA context object.
7037 * The function blocks the posting of SLI4 asynchronous mailbox commands from
7038 * the driver internal pending mailbox queue. It will then try to wait out the
7039 * possible outstanding mailbox command before return.
7042 * 0 - the outstanding mailbox command completed; otherwise, the wait for
7043 * the outstanding mailbox command timed out.
7046 lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
7048 struct lpfc_sli *psli = &phba->sli;
7050 unsigned long timeout = 0;
7052 /* Mark the asynchronous mailbox command posting as blocked */
7053 spin_lock_irq(&phba->hbalock);
7054 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
7055 /* Determine how long we might wait for the active mailbox
7056 * command to be gracefully completed by firmware.
7058 if (phba->sli.mbox_active)
7059 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
7060 phba->sli.mbox_active) *
7062 spin_unlock_irq(&phba->hbalock);
7064 /* Wait for the outstnading mailbox command to complete */
7065 while (phba->sli.mbox_active) {
7066 /* Check active mailbox complete status every 2ms */
7068 if (time_after(jiffies, timeout)) {
7069 /* Timeout, marked the outstanding cmd not complete */
7075 /* Can not cleanly block async mailbox command, fails it */
7077 spin_lock_irq(&phba->hbalock);
7078 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7079 spin_unlock_irq(&phba->hbalock);
7085 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
7086 * @phba: Pointer to HBA context object.
7088 * The function unblocks and resume posting of SLI4 asynchronous mailbox
7089 * commands from the driver internal pending mailbox queue. It makes sure
7090 * that there is no outstanding mailbox command before resuming posting
7091 * asynchronous mailbox commands. If, for any reason, there is outstanding
7092 * mailbox command, it will try to wait it out before resuming asynchronous
7093 * mailbox command posting.
7096 lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
7098 struct lpfc_sli *psli = &phba->sli;
7100 spin_lock_irq(&phba->hbalock);
7101 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7102 /* Asynchronous mailbox posting is not blocked, do nothing */
7103 spin_unlock_irq(&phba->hbalock);
7107 /* Outstanding synchronous mailbox command is guaranteed to be done,
7108 * successful or timeout, after timing-out the outstanding mailbox
7109 * command shall always be removed, so just unblock posting async
7110 * mailbox command and resume
7112 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7113 spin_unlock_irq(&phba->hbalock);
7115 /* wake up worker thread to post asynchronlous mailbox command */
7116 lpfc_worker_wake_up(phba);
7120 * lpfc_sli4_wait_bmbx_ready - Wait for bootstrap mailbox register ready
7121 * @phba: Pointer to HBA context object.
7122 * @mboxq: Pointer to mailbox object.
7124 * The function waits for the bootstrap mailbox register ready bit from
7125 * port for twice the regular mailbox command timeout value.
7127 * 0 - no timeout on waiting for bootstrap mailbox register ready.
7128 * MBXERR_ERROR - wait for bootstrap mailbox register timed out.
7131 lpfc_sli4_wait_bmbx_ready(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7134 unsigned long timeout;
7135 struct lpfc_register bmbx_reg;
7137 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mboxq)
7141 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
7142 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
7146 if (time_after(jiffies, timeout))
7147 return MBXERR_ERROR;
7148 } while (!db_ready);
7154 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
7155 * @phba: Pointer to HBA context object.
7156 * @mboxq: Pointer to mailbox object.
7158 * The function posts a mailbox to the port. The mailbox is expected
7159 * to be comletely filled in and ready for the port to operate on it.
7160 * This routine executes a synchronous completion operation on the
7161 * mailbox by polling for its completion.
7163 * The caller must not be holding any locks when calling this routine.
7166 * MBX_SUCCESS - mailbox posted successfully
7167 * Any of the MBX error values.
7170 lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7172 int rc = MBX_SUCCESS;
7173 unsigned long iflag;
7174 uint32_t mcqe_status;
7176 struct lpfc_sli *psli = &phba->sli;
7177 struct lpfc_mqe *mb = &mboxq->u.mqe;
7178 struct lpfc_bmbx_create *mbox_rgn;
7179 struct dma_address *dma_address;
7182 * Only one mailbox can be active to the bootstrap mailbox region
7183 * at a time and there is no queueing provided.
7185 spin_lock_irqsave(&phba->hbalock, iflag);
7186 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7187 spin_unlock_irqrestore(&phba->hbalock, iflag);
7188 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7189 "(%d):2532 Mailbox command x%x (x%x/x%x) "
7190 "cannot issue Data: x%x x%x\n",
7191 mboxq->vport ? mboxq->vport->vpi : 0,
7192 mboxq->u.mb.mbxCommand,
7193 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7194 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7195 psli->sli_flag, MBX_POLL);
7196 return MBXERR_ERROR;
7198 /* The server grabs the token and owns it until release */
7199 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7200 phba->sli.mbox_active = mboxq;
7201 spin_unlock_irqrestore(&phba->hbalock, iflag);
7203 /* wait for bootstrap mbox register for readyness */
7204 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7209 * Initialize the bootstrap memory region to avoid stale data areas
7210 * in the mailbox post. Then copy the caller's mailbox contents to
7211 * the bmbx mailbox region.
7213 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
7214 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
7215 lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
7216 sizeof(struct lpfc_mqe));
7218 /* Post the high mailbox dma address to the port and wait for ready. */
7219 dma_address = &phba->sli4_hba.bmbx.dma_address;
7220 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
7222 /* wait for bootstrap mbox register for hi-address write done */
7223 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7227 /* Post the low mailbox dma address to the port. */
7228 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
7230 /* wait for bootstrap mbox register for low address write done */
7231 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7236 * Read the CQ to ensure the mailbox has completed.
7237 * If so, update the mailbox status so that the upper layers
7238 * can complete the request normally.
7240 lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
7241 sizeof(struct lpfc_mqe));
7242 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
7243 lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
7244 sizeof(struct lpfc_mcqe));
7245 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
7247 * When the CQE status indicates a failure and the mailbox status
7248 * indicates success then copy the CQE status into the mailbox status
7249 * (and prefix it with x4000).
7251 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
7252 if (bf_get(lpfc_mqe_status, mb) == MBX_SUCCESS)
7253 bf_set(lpfc_mqe_status, mb,
7254 (LPFC_MBX_ERROR_RANGE | mcqe_status));
7257 lpfc_sli4_swap_str(phba, mboxq);
7259 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7260 "(%d):0356 Mailbox cmd x%x (x%x/x%x) Status x%x "
7261 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
7262 " x%x x%x CQ: x%x x%x x%x x%x\n",
7263 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
7264 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7265 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7266 bf_get(lpfc_mqe_status, mb),
7267 mb->un.mb_words[0], mb->un.mb_words[1],
7268 mb->un.mb_words[2], mb->un.mb_words[3],
7269 mb->un.mb_words[4], mb->un.mb_words[5],
7270 mb->un.mb_words[6], mb->un.mb_words[7],
7271 mb->un.mb_words[8], mb->un.mb_words[9],
7272 mb->un.mb_words[10], mb->un.mb_words[11],
7273 mb->un.mb_words[12], mboxq->mcqe.word0,
7274 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
7275 mboxq->mcqe.trailer);
7277 /* We are holding the token, no needed for lock when release */
7278 spin_lock_irqsave(&phba->hbalock, iflag);
7279 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7280 phba->sli.mbox_active = NULL;
7281 spin_unlock_irqrestore(&phba->hbalock, iflag);
7286 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
7287 * @phba: Pointer to HBA context object.
7288 * @pmbox: Pointer to mailbox object.
7289 * @flag: Flag indicating how the mailbox need to be processed.
7291 * This function is called by discovery code and HBA management code to submit
7292 * a mailbox command to firmware with SLI-4 interface spec.
7294 * Return codes the caller owns the mailbox command after the return of the
7298 lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
7301 struct lpfc_sli *psli = &phba->sli;
7302 unsigned long iflags;
7305 /* dump from issue mailbox command if setup */
7306 lpfc_idiag_mbxacc_dump_issue_mbox(phba, &mboxq->u.mb);
7308 rc = lpfc_mbox_dev_check(phba);
7310 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7311 "(%d):2544 Mailbox command x%x (x%x/x%x) "
7312 "cannot issue Data: x%x x%x\n",
7313 mboxq->vport ? mboxq->vport->vpi : 0,
7314 mboxq->u.mb.mbxCommand,
7315 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7316 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7317 psli->sli_flag, flag);
7318 goto out_not_finished;
7321 /* Detect polling mode and jump to a handler */
7322 if (!phba->sli4_hba.intr_enable) {
7323 if (flag == MBX_POLL)
7324 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
7327 if (rc != MBX_SUCCESS)
7328 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7329 "(%d):2541 Mailbox command x%x "
7330 "(x%x/x%x) failure: "
7331 "mqe_sta: x%x mcqe_sta: x%x/x%x "
7333 mboxq->vport ? mboxq->vport->vpi : 0,
7334 mboxq->u.mb.mbxCommand,
7335 lpfc_sli_config_mbox_subsys_get(phba,
7337 lpfc_sli_config_mbox_opcode_get(phba,
7339 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
7340 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
7341 bf_get(lpfc_mcqe_ext_status,
7343 psli->sli_flag, flag);
7345 } else if (flag == MBX_POLL) {
7346 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7347 "(%d):2542 Try to issue mailbox command "
7348 "x%x (x%x/x%x) synchronously ahead of async"
7349 "mailbox command queue: x%x x%x\n",
7350 mboxq->vport ? mboxq->vport->vpi : 0,
7351 mboxq->u.mb.mbxCommand,
7352 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7353 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7354 psli->sli_flag, flag);
7355 /* Try to block the asynchronous mailbox posting */
7356 rc = lpfc_sli4_async_mbox_block(phba);
7358 /* Successfully blocked, now issue sync mbox cmd */
7359 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
7360 if (rc != MBX_SUCCESS)
7361 lpfc_printf_log(phba, KERN_WARNING,
7363 "(%d):2597 Sync Mailbox command "
7364 "x%x (x%x/x%x) failure: "
7365 "mqe_sta: x%x mcqe_sta: x%x/x%x "
7367 mboxq->vport ? mboxq->vport->vpi : 0,
7368 mboxq->u.mb.mbxCommand,
7369 lpfc_sli_config_mbox_subsys_get(phba,
7371 lpfc_sli_config_mbox_opcode_get(phba,
7373 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
7374 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
7375 bf_get(lpfc_mcqe_ext_status,
7377 psli->sli_flag, flag);
7378 /* Unblock the async mailbox posting afterward */
7379 lpfc_sli4_async_mbox_unblock(phba);
7384 /* Now, interrupt mode asynchrous mailbox command */
7385 rc = lpfc_mbox_cmd_check(phba, mboxq);
7387 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7388 "(%d):2543 Mailbox command x%x (x%x/x%x) "
7389 "cannot issue Data: x%x x%x\n",
7390 mboxq->vport ? mboxq->vport->vpi : 0,
7391 mboxq->u.mb.mbxCommand,
7392 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7393 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7394 psli->sli_flag, flag);
7395 goto out_not_finished;
7398 /* Put the mailbox command to the driver internal FIFO */
7399 psli->slistat.mbox_busy++;
7400 spin_lock_irqsave(&phba->hbalock, iflags);
7401 lpfc_mbox_put(phba, mboxq);
7402 spin_unlock_irqrestore(&phba->hbalock, iflags);
7403 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7404 "(%d):0354 Mbox cmd issue - Enqueue Data: "
7405 "x%x (x%x/x%x) x%x x%x x%x\n",
7406 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
7407 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
7408 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7409 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7410 phba->pport->port_state,
7411 psli->sli_flag, MBX_NOWAIT);
7412 /* Wake up worker thread to transport mailbox command from head */
7413 lpfc_worker_wake_up(phba);
7418 return MBX_NOT_FINISHED;
7422 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
7423 * @phba: Pointer to HBA context object.
7425 * This function is called by worker thread to send a mailbox command to
7426 * SLI4 HBA firmware.
7430 lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
7432 struct lpfc_sli *psli = &phba->sli;
7433 LPFC_MBOXQ_t *mboxq;
7434 int rc = MBX_SUCCESS;
7435 unsigned long iflags;
7436 struct lpfc_mqe *mqe;
7439 /* Check interrupt mode before post async mailbox command */
7440 if (unlikely(!phba->sli4_hba.intr_enable))
7441 return MBX_NOT_FINISHED;
7443 /* Check for mailbox command service token */
7444 spin_lock_irqsave(&phba->hbalock, iflags);
7445 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7446 spin_unlock_irqrestore(&phba->hbalock, iflags);
7447 return MBX_NOT_FINISHED;
7449 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7450 spin_unlock_irqrestore(&phba->hbalock, iflags);
7451 return MBX_NOT_FINISHED;
7453 if (unlikely(phba->sli.mbox_active)) {
7454 spin_unlock_irqrestore(&phba->hbalock, iflags);
7455 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7456 "0384 There is pending active mailbox cmd\n");
7457 return MBX_NOT_FINISHED;
7459 /* Take the mailbox command service token */
7460 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7462 /* Get the next mailbox command from head of queue */
7463 mboxq = lpfc_mbox_get(phba);
7465 /* If no more mailbox command waiting for post, we're done */
7467 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7468 spin_unlock_irqrestore(&phba->hbalock, iflags);
7471 phba->sli.mbox_active = mboxq;
7472 spin_unlock_irqrestore(&phba->hbalock, iflags);
7474 /* Check device readiness for posting mailbox command */
7475 rc = lpfc_mbox_dev_check(phba);
7477 /* Driver clean routine will clean up pending mailbox */
7478 goto out_not_finished;
7480 /* Prepare the mbox command to be posted */
7481 mqe = &mboxq->u.mqe;
7482 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
7484 /* Start timer for the mbox_tmo and log some mailbox post messages */
7485 mod_timer(&psli->mbox_tmo, (jiffies +
7486 (HZ * lpfc_mbox_tmo_val(phba, mboxq))));
7488 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7489 "(%d):0355 Mailbox cmd x%x (x%x/x%x) issue Data: "
7491 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
7492 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7493 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7494 phba->pport->port_state, psli->sli_flag);
7496 if (mbx_cmnd != MBX_HEARTBEAT) {
7498 lpfc_debugfs_disc_trc(mboxq->vport,
7499 LPFC_DISC_TRC_MBOX_VPORT,
7500 "MBOX Send vport: cmd:x%x mb:x%x x%x",
7501 mbx_cmnd, mqe->un.mb_words[0],
7502 mqe->un.mb_words[1]);
7504 lpfc_debugfs_disc_trc(phba->pport,
7506 "MBOX Send: cmd:x%x mb:x%x x%x",
7507 mbx_cmnd, mqe->un.mb_words[0],
7508 mqe->un.mb_words[1]);
7511 psli->slistat.mbox_cmd++;
7513 /* Post the mailbox command to the port */
7514 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
7515 if (rc != MBX_SUCCESS) {
7516 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7517 "(%d):2533 Mailbox command x%x (x%x/x%x) "
7518 "cannot issue Data: x%x x%x\n",
7519 mboxq->vport ? mboxq->vport->vpi : 0,
7520 mboxq->u.mb.mbxCommand,
7521 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7522 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7523 psli->sli_flag, MBX_NOWAIT);
7524 goto out_not_finished;
7530 spin_lock_irqsave(&phba->hbalock, iflags);
7531 if (phba->sli.mbox_active) {
7532 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
7533 __lpfc_mbox_cmpl_put(phba, mboxq);
7534 /* Release the token */
7535 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7536 phba->sli.mbox_active = NULL;
7538 spin_unlock_irqrestore(&phba->hbalock, iflags);
7540 return MBX_NOT_FINISHED;
7544 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
7545 * @phba: Pointer to HBA context object.
7546 * @pmbox: Pointer to mailbox object.
7547 * @flag: Flag indicating how the mailbox need to be processed.
7549 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
7550 * the API jump table function pointer from the lpfc_hba struct.
7552 * Return codes the caller owns the mailbox command after the return of the
7556 lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
7558 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
7562 * lpfc_mbox_api_table_setup - Set up mbox api function jump table
7563 * @phba: The hba struct for which this call is being executed.
7564 * @dev_grp: The HBA PCI-Device group number.
7566 * This routine sets up the mbox interface API function jump table in @phba
7568 * Returns: 0 - success, -ENODEV - failure.
7571 lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
7575 case LPFC_PCI_DEV_LP:
7576 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
7577 phba->lpfc_sli_handle_slow_ring_event =
7578 lpfc_sli_handle_slow_ring_event_s3;
7579 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
7580 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
7581 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
7583 case LPFC_PCI_DEV_OC:
7584 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
7585 phba->lpfc_sli_handle_slow_ring_event =
7586 lpfc_sli_handle_slow_ring_event_s4;
7587 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
7588 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
7589 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
7592 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7593 "1420 Invalid HBA PCI-device group: 0x%x\n",
7602 * __lpfc_sli_ringtx_put - Add an iocb to the txq
7603 * @phba: Pointer to HBA context object.
7604 * @pring: Pointer to driver SLI ring object.
7605 * @piocb: Pointer to address of newly added command iocb.
7607 * This function is called with hbalock held to add a command
7608 * iocb to the txq when SLI layer cannot submit the command iocb
7612 __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7613 struct lpfc_iocbq *piocb)
7615 /* Insert the caller's iocb in the txq tail for later processing. */
7616 list_add_tail(&piocb->list, &pring->txq);
7621 * lpfc_sli_next_iocb - Get the next iocb in the txq
7622 * @phba: Pointer to HBA context object.
7623 * @pring: Pointer to driver SLI ring object.
7624 * @piocb: Pointer to address of newly added command iocb.
7626 * This function is called with hbalock held before a new
7627 * iocb is submitted to the firmware. This function checks
7628 * txq to flush the iocbs in txq to Firmware before
7629 * submitting new iocbs to the Firmware.
7630 * If there are iocbs in the txq which need to be submitted
7631 * to firmware, lpfc_sli_next_iocb returns the first element
7632 * of the txq after dequeuing it from txq.
7633 * If there is no iocb in the txq then the function will return
7634 * *piocb and *piocb is set to NULL. Caller needs to check
7635 * *piocb to find if there are more commands in the txq.
7637 static struct lpfc_iocbq *
7638 lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7639 struct lpfc_iocbq **piocb)
7641 struct lpfc_iocbq * nextiocb;
7643 nextiocb = lpfc_sli_ringtx_get(phba, pring);
7653 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
7654 * @phba: Pointer to HBA context object.
7655 * @ring_number: SLI ring number to issue iocb on.
7656 * @piocb: Pointer to command iocb.
7657 * @flag: Flag indicating if this command can be put into txq.
7659 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
7660 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
7661 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
7662 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
7663 * this function allows only iocbs for posting buffers. This function finds
7664 * next available slot in the command ring and posts the command to the
7665 * available slot and writes the port attention register to request HBA start
7666 * processing new iocb. If there is no slot available in the ring and
7667 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
7668 * the function returns IOCB_BUSY.
7670 * This function is called with hbalock held. The function will return success
7671 * after it successfully submit the iocb to firmware or after adding to the
7675 __lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
7676 struct lpfc_iocbq *piocb, uint32_t flag)
7678 struct lpfc_iocbq *nextiocb;
7680 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
7682 if (piocb->iocb_cmpl && (!piocb->vport) &&
7683 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
7684 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
7685 lpfc_printf_log(phba, KERN_ERR,
7686 LOG_SLI | LOG_VPORT,
7687 "1807 IOCB x%x failed. No vport\n",
7688 piocb->iocb.ulpCommand);
7694 /* If the PCI channel is in offline state, do not post iocbs. */
7695 if (unlikely(pci_channel_offline(phba->pcidev)))
7698 /* If HBA has a deferred error attention, fail the iocb. */
7699 if (unlikely(phba->hba_flag & DEFER_ERATT))
7703 * We should never get an IOCB if we are in a < LINK_DOWN state
7705 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
7709 * Check to see if we are blocking IOCB processing because of a
7710 * outstanding event.
7712 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
7715 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
7717 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
7718 * can be issued if the link is not up.
7720 switch (piocb->iocb.ulpCommand) {
7721 case CMD_GEN_REQUEST64_CR:
7722 case CMD_GEN_REQUEST64_CX:
7723 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
7724 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
7725 FC_RCTL_DD_UNSOL_CMD) ||
7726 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
7727 MENLO_TRANSPORT_TYPE))
7731 case CMD_QUE_RING_BUF_CN:
7732 case CMD_QUE_RING_BUF64_CN:
7734 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
7735 * completion, iocb_cmpl MUST be 0.
7737 if (piocb->iocb_cmpl)
7738 piocb->iocb_cmpl = NULL;
7740 case CMD_CREATE_XRI_CR:
7741 case CMD_CLOSE_XRI_CN:
7742 case CMD_CLOSE_XRI_CX:
7749 * For FCP commands, we must be in a state where we can process link
7752 } else if (unlikely(pring->ringno == phba->sli.fcp_ring &&
7753 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
7757 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
7758 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
7759 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
7762 lpfc_sli_update_ring(phba, pring);
7764 lpfc_sli_update_full_ring(phba, pring);
7767 return IOCB_SUCCESS;
7772 pring->stats.iocb_cmd_delay++;
7776 if (!(flag & SLI_IOCB_RET_IOCB)) {
7777 __lpfc_sli_ringtx_put(phba, pring, piocb);
7778 return IOCB_SUCCESS;
7785 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
7786 * @phba: Pointer to HBA context object.
7787 * @piocb: Pointer to command iocb.
7788 * @sglq: Pointer to the scatter gather queue object.
7790 * This routine converts the bpl or bde that is in the IOCB
7791 * to a sgl list for the sli4 hardware. The physical address
7792 * of the bpl/bde is converted back to a virtual address.
7793 * If the IOCB contains a BPL then the list of BDE's is
7794 * converted to sli4_sge's. If the IOCB contains a single
7795 * BDE then it is converted to a single sli_sge.
7796 * The IOCB is still in cpu endianess so the contents of
7797 * the bpl can be used without byte swapping.
7799 * Returns valid XRI = Success, NO_XRI = Failure.
7802 lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
7803 struct lpfc_sglq *sglq)
7805 uint16_t xritag = NO_XRI;
7806 struct ulp_bde64 *bpl = NULL;
7807 struct ulp_bde64 bde;
7808 struct sli4_sge *sgl = NULL;
7809 struct lpfc_dmabuf *dmabuf;
7813 uint32_t offset = 0; /* accumulated offset in the sg request list */
7814 int inbound = 0; /* number of sg reply entries inbound from firmware */
7816 if (!piocbq || !sglq)
7819 sgl = (struct sli4_sge *)sglq->sgl;
7820 icmd = &piocbq->iocb;
7821 if (icmd->ulpCommand == CMD_XMIT_BLS_RSP64_CX)
7822 return sglq->sli4_xritag;
7823 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
7824 numBdes = icmd->un.genreq64.bdl.bdeSize /
7825 sizeof(struct ulp_bde64);
7826 /* The addrHigh and addrLow fields within the IOCB
7827 * have not been byteswapped yet so there is no
7828 * need to swap them back.
7830 if (piocbq->context3)
7831 dmabuf = (struct lpfc_dmabuf *)piocbq->context3;
7835 bpl = (struct ulp_bde64 *)dmabuf->virt;
7839 for (i = 0; i < numBdes; i++) {
7840 /* Should already be byte swapped. */
7841 sgl->addr_hi = bpl->addrHigh;
7842 sgl->addr_lo = bpl->addrLow;
7844 sgl->word2 = le32_to_cpu(sgl->word2);
7845 if ((i+1) == numBdes)
7846 bf_set(lpfc_sli4_sge_last, sgl, 1);
7848 bf_set(lpfc_sli4_sge_last, sgl, 0);
7849 /* swap the size field back to the cpu so we
7850 * can assign it to the sgl.
7852 bde.tus.w = le32_to_cpu(bpl->tus.w);
7853 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
7854 /* The offsets in the sgl need to be accumulated
7855 * separately for the request and reply lists.
7856 * The request is always first, the reply follows.
7858 if (piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) {
7859 /* add up the reply sg entries */
7860 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
7862 /* first inbound? reset the offset */
7865 bf_set(lpfc_sli4_sge_offset, sgl, offset);
7866 bf_set(lpfc_sli4_sge_type, sgl,
7867 LPFC_SGE_TYPE_DATA);
7868 offset += bde.tus.f.bdeSize;
7870 sgl->word2 = cpu_to_le32(sgl->word2);
7874 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
7875 /* The addrHigh and addrLow fields of the BDE have not
7876 * been byteswapped yet so they need to be swapped
7877 * before putting them in the sgl.
7880 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
7882 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
7883 sgl->word2 = le32_to_cpu(sgl->word2);
7884 bf_set(lpfc_sli4_sge_last, sgl, 1);
7885 sgl->word2 = cpu_to_le32(sgl->word2);
7887 cpu_to_le32(icmd->un.genreq64.bdl.bdeSize);
7889 return sglq->sli4_xritag;
7893 * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution
7894 * @phba: Pointer to HBA context object.
7896 * This routine performs a roundrobin SCSI command to SLI4 FCP WQ index
7897 * distribution. This is called by __lpfc_sli_issue_iocb_s4() with the hbalock
7900 * Return: index into SLI4 fast-path FCP queue index.
7902 static inline uint32_t
7903 lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba)
7907 if (phba->cfg_fcp_io_sched == LPFC_FCP_SCHED_BY_CPU)
7908 i = smp_processor_id();
7910 i = atomic_add_return(1, &phba->fcp_qidx);
7912 i = (i % phba->cfg_fcp_io_channel);
7917 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
7918 * @phba: Pointer to HBA context object.
7919 * @piocb: Pointer to command iocb.
7920 * @wqe: Pointer to the work queue entry.
7922 * This routine converts the iocb command to its Work Queue Entry
7923 * equivalent. The wqe pointer should not have any fields set when
7924 * this routine is called because it will memcpy over them.
7925 * This routine does not set the CQ_ID or the WQEC bits in the
7928 * Returns: 0 = Success, IOCB_ERROR = Failure.
7931 lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
7932 union lpfc_wqe *wqe)
7934 uint32_t xmit_len = 0, total_len = 0;
7938 uint8_t command_type = ELS_COMMAND_NON_FIP;
7941 uint16_t abrt_iotag;
7942 struct lpfc_iocbq *abrtiocbq;
7943 struct ulp_bde64 *bpl = NULL;
7944 uint32_t els_id = LPFC_ELS_ID_DEFAULT;
7946 struct ulp_bde64 bde;
7947 struct lpfc_nodelist *ndlp;
7951 fip = phba->hba_flag & HBA_FIP_SUPPORT;
7952 /* The fcp commands will set command type */
7953 if (iocbq->iocb_flag & LPFC_IO_FCP)
7954 command_type = FCP_COMMAND;
7955 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
7956 command_type = ELS_COMMAND_FIP;
7958 command_type = ELS_COMMAND_NON_FIP;
7960 /* Some of the fields are in the right position already */
7961 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
7962 abort_tag = (uint32_t) iocbq->iotag;
7963 xritag = iocbq->sli4_xritag;
7964 wqe->generic.wqe_com.word7 = 0; /* The ct field has moved so reset */
7965 /* words0-2 bpl convert bde */
7966 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
7967 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
7968 sizeof(struct ulp_bde64);
7969 bpl = (struct ulp_bde64 *)
7970 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
7974 /* Should already be byte swapped. */
7975 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
7976 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
7977 /* swap the size field back to the cpu so we
7978 * can assign it to the sgl.
7980 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
7981 xmit_len = wqe->generic.bde.tus.f.bdeSize;
7983 for (i = 0; i < numBdes; i++) {
7984 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
7985 total_len += bde.tus.f.bdeSize;
7988 xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
7990 iocbq->iocb.ulpIoTag = iocbq->iotag;
7991 cmnd = iocbq->iocb.ulpCommand;
7993 switch (iocbq->iocb.ulpCommand) {
7994 case CMD_ELS_REQUEST64_CR:
7995 if (iocbq->iocb_flag & LPFC_IO_LIBDFC)
7996 ndlp = iocbq->context_un.ndlp;
7998 ndlp = (struct lpfc_nodelist *)iocbq->context1;
7999 if (!iocbq->iocb.ulpLe) {
8000 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8001 "2007 Only Limited Edition cmd Format"
8002 " supported 0x%x\n",
8003 iocbq->iocb.ulpCommand);
8007 wqe->els_req.payload_len = xmit_len;
8008 /* Els_reguest64 has a TMO */
8009 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
8010 iocbq->iocb.ulpTimeout);
8011 /* Need a VF for word 4 set the vf bit*/
8012 bf_set(els_req64_vf, &wqe->els_req, 0);
8013 /* And a VFID for word 12 */
8014 bf_set(els_req64_vfid, &wqe->els_req, 0);
8015 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
8016 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8017 iocbq->iocb.ulpContext);
8018 bf_set(wqe_ct, &wqe->els_req.wqe_com, ct);
8019 bf_set(wqe_pu, &wqe->els_req.wqe_com, 0);
8020 /* CCP CCPE PV PRI in word10 were set in the memcpy */
8021 if (command_type == ELS_COMMAND_FIP)
8022 els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
8023 >> LPFC_FIP_ELS_ID_SHIFT);
8024 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
8025 iocbq->context2)->virt);
8026 if_type = bf_get(lpfc_sli_intf_if_type,
8027 &phba->sli4_hba.sli_intf);
8028 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8029 if (pcmd && (*pcmd == ELS_CMD_FLOGI ||
8030 *pcmd == ELS_CMD_SCR ||
8031 *pcmd == ELS_CMD_FDISC ||
8032 *pcmd == ELS_CMD_LOGO ||
8033 *pcmd == ELS_CMD_PLOGI)) {
8034 bf_set(els_req64_sp, &wqe->els_req, 1);
8035 bf_set(els_req64_sid, &wqe->els_req,
8036 iocbq->vport->fc_myDID);
8037 if ((*pcmd == ELS_CMD_FLOGI) &&
8038 !(phba->fc_topology ==
8039 LPFC_TOPOLOGY_LOOP))
8040 bf_set(els_req64_sid, &wqe->els_req, 0);
8041 bf_set(wqe_ct, &wqe->els_req.wqe_com, 1);
8042 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8043 phba->vpi_ids[iocbq->vport->vpi]);
8044 } else if (pcmd && iocbq->context1) {
8045 bf_set(wqe_ct, &wqe->els_req.wqe_com, 0);
8046 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8047 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8050 bf_set(wqe_temp_rpi, &wqe->els_req.wqe_com,
8051 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8052 bf_set(wqe_els_id, &wqe->els_req.wqe_com, els_id);
8053 bf_set(wqe_dbde, &wqe->els_req.wqe_com, 1);
8054 bf_set(wqe_iod, &wqe->els_req.wqe_com, LPFC_WQE_IOD_READ);
8055 bf_set(wqe_qosd, &wqe->els_req.wqe_com, 1);
8056 bf_set(wqe_lenloc, &wqe->els_req.wqe_com, LPFC_WQE_LENLOC_NONE);
8057 bf_set(wqe_ebde_cnt, &wqe->els_req.wqe_com, 0);
8059 case CMD_XMIT_SEQUENCE64_CX:
8060 bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com,
8061 iocbq->iocb.un.ulpWord[3]);
8062 bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com,
8063 iocbq->iocb.unsli3.rcvsli3.ox_id);
8064 /* The entire sequence is transmitted for this IOCB */
8065 xmit_len = total_len;
8066 cmnd = CMD_XMIT_SEQUENCE64_CR;
8067 if (phba->link_flag & LS_LOOPBACK_MODE)
8068 bf_set(wqe_xo, &wqe->xmit_sequence.wge_ctl, 1);
8069 case CMD_XMIT_SEQUENCE64_CR:
8070 /* word3 iocb=io_tag32 wqe=reserved */
8071 wqe->xmit_sequence.rsvd3 = 0;
8072 /* word4 relative_offset memcpy */
8073 /* word5 r_ctl/df_ctl memcpy */
8074 bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0);
8075 bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1);
8076 bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com,
8077 LPFC_WQE_IOD_WRITE);
8078 bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com,
8079 LPFC_WQE_LENLOC_WORD12);
8080 bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0);
8081 wqe->xmit_sequence.xmit_len = xmit_len;
8082 command_type = OTHER_COMMAND;
8084 case CMD_XMIT_BCAST64_CN:
8085 /* word3 iocb=iotag32 wqe=seq_payload_len */
8086 wqe->xmit_bcast64.seq_payload_len = xmit_len;
8087 /* word4 iocb=rsvd wqe=rsvd */
8088 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
8089 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
8090 bf_set(wqe_ct, &wqe->xmit_bcast64.wqe_com,
8091 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8092 bf_set(wqe_dbde, &wqe->xmit_bcast64.wqe_com, 1);
8093 bf_set(wqe_iod, &wqe->xmit_bcast64.wqe_com, LPFC_WQE_IOD_WRITE);
8094 bf_set(wqe_lenloc, &wqe->xmit_bcast64.wqe_com,
8095 LPFC_WQE_LENLOC_WORD3);
8096 bf_set(wqe_ebde_cnt, &wqe->xmit_bcast64.wqe_com, 0);
8098 case CMD_FCP_IWRITE64_CR:
8099 command_type = FCP_COMMAND_DATA_OUT;
8100 /* word3 iocb=iotag wqe=payload_offset_len */
8101 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8102 wqe->fcp_iwrite.payload_offset_len =
8103 xmit_len + sizeof(struct fcp_rsp);
8104 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8105 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8106 bf_set(wqe_erp, &wqe->fcp_iwrite.wqe_com,
8107 iocbq->iocb.ulpFCP2Rcvy);
8108 bf_set(wqe_lnk, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpXS);
8109 /* Always open the exchange */
8110 bf_set(wqe_xc, &wqe->fcp_iwrite.wqe_com, 0);
8111 bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE);
8112 bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com,
8113 LPFC_WQE_LENLOC_WORD4);
8114 bf_set(wqe_ebde_cnt, &wqe->fcp_iwrite.wqe_com, 0);
8115 bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpPU);
8116 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 1);
8118 case CMD_FCP_IREAD64_CR:
8119 /* word3 iocb=iotag wqe=payload_offset_len */
8120 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8121 wqe->fcp_iread.payload_offset_len =
8122 xmit_len + sizeof(struct fcp_rsp);
8123 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8124 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8125 bf_set(wqe_erp, &wqe->fcp_iread.wqe_com,
8126 iocbq->iocb.ulpFCP2Rcvy);
8127 bf_set(wqe_lnk, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpXS);
8128 /* Always open the exchange */
8129 bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
8130 bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ);
8131 bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com,
8132 LPFC_WQE_LENLOC_WORD4);
8133 bf_set(wqe_ebde_cnt, &wqe->fcp_iread.wqe_com, 0);
8134 bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpPU);
8135 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 1);
8137 case CMD_FCP_ICMND64_CR:
8138 /* word3 iocb=IO_TAG wqe=reserved */
8139 wqe->fcp_icmd.rsrvd3 = 0;
8140 bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0);
8141 /* Always open the exchange */
8142 bf_set(wqe_xc, &wqe->fcp_icmd.wqe_com, 0);
8143 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 1);
8144 bf_set(wqe_iod, &wqe->fcp_icmd.wqe_com, LPFC_WQE_IOD_WRITE);
8145 bf_set(wqe_qosd, &wqe->fcp_icmd.wqe_com, 1);
8146 bf_set(wqe_lenloc, &wqe->fcp_icmd.wqe_com,
8147 LPFC_WQE_LENLOC_NONE);
8148 bf_set(wqe_ebde_cnt, &wqe->fcp_icmd.wqe_com, 0);
8149 bf_set(wqe_erp, &wqe->fcp_icmd.wqe_com,
8150 iocbq->iocb.ulpFCP2Rcvy);
8152 case CMD_GEN_REQUEST64_CR:
8153 /* For this command calculate the xmit length of the
8157 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
8158 sizeof(struct ulp_bde64);
8159 for (i = 0; i < numBdes; i++) {
8160 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
8161 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
8163 xmit_len += bde.tus.f.bdeSize;
8165 /* word3 iocb=IO_TAG wqe=request_payload_len */
8166 wqe->gen_req.request_payload_len = xmit_len;
8167 /* word4 iocb=parameter wqe=relative_offset memcpy */
8168 /* word5 [rctl, type, df_ctl, la] copied in memcpy */
8169 /* word6 context tag copied in memcpy */
8170 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
8171 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
8172 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8173 "2015 Invalid CT %x command 0x%x\n",
8174 ct, iocbq->iocb.ulpCommand);
8177 bf_set(wqe_ct, &wqe->gen_req.wqe_com, 0);
8178 bf_set(wqe_tmo, &wqe->gen_req.wqe_com, iocbq->iocb.ulpTimeout);
8179 bf_set(wqe_pu, &wqe->gen_req.wqe_com, iocbq->iocb.ulpPU);
8180 bf_set(wqe_dbde, &wqe->gen_req.wqe_com, 1);
8181 bf_set(wqe_iod, &wqe->gen_req.wqe_com, LPFC_WQE_IOD_READ);
8182 bf_set(wqe_qosd, &wqe->gen_req.wqe_com, 1);
8183 bf_set(wqe_lenloc, &wqe->gen_req.wqe_com, LPFC_WQE_LENLOC_NONE);
8184 bf_set(wqe_ebde_cnt, &wqe->gen_req.wqe_com, 0);
8185 command_type = OTHER_COMMAND;
8187 case CMD_XMIT_ELS_RSP64_CX:
8188 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8189 /* words0-2 BDE memcpy */
8190 /* word3 iocb=iotag32 wqe=response_payload_len */
8191 wqe->xmit_els_rsp.response_payload_len = xmit_len;
8193 wqe->xmit_els_rsp.word4 = 0;
8194 /* word5 iocb=rsvd wge=did */
8195 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
8196 iocbq->iocb.un.xseq64.xmit_els_remoteID);
8198 if_type = bf_get(lpfc_sli_intf_if_type,
8199 &phba->sli4_hba.sli_intf);
8200 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8201 if (iocbq->vport->fc_flag & FC_PT2PT) {
8202 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
8203 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
8204 iocbq->vport->fc_myDID);
8205 if (iocbq->vport->fc_myDID == Fabric_DID) {
8207 &wqe->xmit_els_rsp.wqe_dest, 0);
8211 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com,
8212 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8213 bf_set(wqe_pu, &wqe->xmit_els_rsp.wqe_com, iocbq->iocb.ulpPU);
8214 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
8215 iocbq->iocb.unsli3.rcvsli3.ox_id);
8216 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
8217 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
8218 phba->vpi_ids[iocbq->vport->vpi]);
8219 bf_set(wqe_dbde, &wqe->xmit_els_rsp.wqe_com, 1);
8220 bf_set(wqe_iod, &wqe->xmit_els_rsp.wqe_com, LPFC_WQE_IOD_WRITE);
8221 bf_set(wqe_qosd, &wqe->xmit_els_rsp.wqe_com, 1);
8222 bf_set(wqe_lenloc, &wqe->xmit_els_rsp.wqe_com,
8223 LPFC_WQE_LENLOC_WORD3);
8224 bf_set(wqe_ebde_cnt, &wqe->xmit_els_rsp.wqe_com, 0);
8225 bf_set(wqe_rsp_temp_rpi, &wqe->xmit_els_rsp,
8226 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8227 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
8228 iocbq->context2)->virt);
8229 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
8230 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
8231 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
8232 iocbq->vport->fc_myDID);
8233 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com, 1);
8234 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
8235 phba->vpi_ids[phba->pport->vpi]);
8237 command_type = OTHER_COMMAND;
8239 case CMD_CLOSE_XRI_CN:
8240 case CMD_ABORT_XRI_CN:
8241 case CMD_ABORT_XRI_CX:
8242 /* words 0-2 memcpy should be 0 rserved */
8243 /* port will send abts */
8244 abrt_iotag = iocbq->iocb.un.acxri.abortContextTag;
8245 if (abrt_iotag != 0 && abrt_iotag <= phba->sli.last_iotag) {
8246 abrtiocbq = phba->sli.iocbq_lookup[abrt_iotag];
8247 fip = abrtiocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK;
8251 if ((iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN) || fip)
8253 * The link is down, or the command was ELS_FIP
8254 * so the fw does not need to send abts
8257 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
8259 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
8260 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
8261 /* word5 iocb=CONTEXT_TAG|IO_TAG wqe=reserved */
8262 wqe->abort_cmd.rsrvd5 = 0;
8263 bf_set(wqe_ct, &wqe->abort_cmd.wqe_com,
8264 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8265 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
8267 * The abort handler will send us CMD_ABORT_XRI_CN or
8268 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
8270 bf_set(wqe_cmnd, &wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
8271 bf_set(wqe_qosd, &wqe->abort_cmd.wqe_com, 1);
8272 bf_set(wqe_lenloc, &wqe->abort_cmd.wqe_com,
8273 LPFC_WQE_LENLOC_NONE);
8274 cmnd = CMD_ABORT_XRI_CX;
8275 command_type = OTHER_COMMAND;
8278 case CMD_XMIT_BLS_RSP64_CX:
8279 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8280 /* As BLS ABTS RSP WQE is very different from other WQEs,
8281 * we re-construct this WQE here based on information in
8282 * iocbq from scratch.
8284 memset(wqe, 0, sizeof(union lpfc_wqe));
8285 /* OX_ID is invariable to who sent ABTS to CT exchange */
8286 bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
8287 bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_rsp));
8288 if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_rsp) ==
8289 LPFC_ABTS_UNSOL_INT) {
8290 /* ABTS sent by initiator to CT exchange, the
8291 * RX_ID field will be filled with the newly
8292 * allocated responder XRI.
8294 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
8295 iocbq->sli4_xritag);
8297 /* ABTS sent by responder to CT exchange, the
8298 * RX_ID field will be filled with the responder
8301 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
8302 bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_rsp));
8304 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
8305 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
8308 bf_set(wqe_els_did, &wqe->xmit_bls_rsp.wqe_dest,
8310 bf_set(xmit_bls_rsp64_temprpi, &wqe->xmit_bls_rsp,
8311 iocbq->iocb.ulpContext);
8312 bf_set(wqe_ct, &wqe->xmit_bls_rsp.wqe_com, 1);
8313 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
8314 phba->vpi_ids[phba->pport->vpi]);
8315 bf_set(wqe_qosd, &wqe->xmit_bls_rsp.wqe_com, 1);
8316 bf_set(wqe_lenloc, &wqe->xmit_bls_rsp.wqe_com,
8317 LPFC_WQE_LENLOC_NONE);
8318 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
8319 command_type = OTHER_COMMAND;
8320 if (iocbq->iocb.un.xseq64.w5.hcsw.Rctl == FC_RCTL_BA_RJT) {
8321 bf_set(xmit_bls_rsp64_rjt_vspec, &wqe->xmit_bls_rsp,
8322 bf_get(lpfc_vndr_code, &iocbq->iocb.un.bls_rsp));
8323 bf_set(xmit_bls_rsp64_rjt_expc, &wqe->xmit_bls_rsp,
8324 bf_get(lpfc_rsn_expln, &iocbq->iocb.un.bls_rsp));
8325 bf_set(xmit_bls_rsp64_rjt_rsnc, &wqe->xmit_bls_rsp,
8326 bf_get(lpfc_rsn_code, &iocbq->iocb.un.bls_rsp));
8330 case CMD_XRI_ABORTED_CX:
8331 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
8332 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
8333 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
8334 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
8335 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
8337 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8338 "2014 Invalid command 0x%x\n",
8339 iocbq->iocb.ulpCommand);
8344 if (iocbq->iocb_flag & LPFC_IO_DIF_PASS)
8345 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_PASSTHRU);
8346 else if (iocbq->iocb_flag & LPFC_IO_DIF_STRIP)
8347 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_STRIP);
8348 else if (iocbq->iocb_flag & LPFC_IO_DIF_INSERT)
8349 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_INSERT);
8350 iocbq->iocb_flag &= ~(LPFC_IO_DIF_PASS | LPFC_IO_DIF_STRIP |
8351 LPFC_IO_DIF_INSERT);
8352 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
8353 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
8354 wqe->generic.wqe_com.abort_tag = abort_tag;
8355 bf_set(wqe_cmd_type, &wqe->generic.wqe_com, command_type);
8356 bf_set(wqe_cmnd, &wqe->generic.wqe_com, cmnd);
8357 bf_set(wqe_class, &wqe->generic.wqe_com, iocbq->iocb.ulpClass);
8358 bf_set(wqe_cqid, &wqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
8363 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
8364 * @phba: Pointer to HBA context object.
8365 * @ring_number: SLI ring number to issue iocb on.
8366 * @piocb: Pointer to command iocb.
8367 * @flag: Flag indicating if this command can be put into txq.
8369 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
8370 * an iocb command to an HBA with SLI-4 interface spec.
8372 * This function is called with hbalock held. The function will return success
8373 * after it successfully submit the iocb to firmware or after adding to the
8377 __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
8378 struct lpfc_iocbq *piocb, uint32_t flag)
8380 struct lpfc_sglq *sglq;
8382 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
8384 if (piocb->sli4_xritag == NO_XRI) {
8385 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
8386 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
8389 if (pring->txq_cnt) {
8390 if (!(flag & SLI_IOCB_RET_IOCB)) {
8391 __lpfc_sli_ringtx_put(phba,
8393 return IOCB_SUCCESS;
8398 sglq = __lpfc_sli_get_sglq(phba, piocb);
8400 if (!(flag & SLI_IOCB_RET_IOCB)) {
8401 __lpfc_sli_ringtx_put(phba,
8404 return IOCB_SUCCESS;
8410 } else if (piocb->iocb_flag & LPFC_IO_FCP) {
8411 /* These IO's already have an XRI and a mapped sgl. */
8415 * This is a continuation of a commandi,(CX) so this
8416 * sglq is on the active list
8418 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_lxritag);
8424 piocb->sli4_lxritag = sglq->sli4_lxritag;
8425 piocb->sli4_xritag = sglq->sli4_xritag;
8426 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocb, sglq))
8430 if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe))
8433 if ((piocb->iocb_flag & LPFC_IO_FCP) ||
8434 (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
8435 if (lpfc_sli4_wq_put(phba->sli4_hba.fcp_wq[piocb->fcp_wqidx],
8439 if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
8442 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
8448 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
8450 * This routine wraps the actual lockless version for issusing IOCB function
8451 * pointer from the lpfc_hba struct.
8454 * IOCB_ERROR - Error
8455 * IOCB_SUCCESS - Success
8459 __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
8460 struct lpfc_iocbq *piocb, uint32_t flag)
8462 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
8466 * lpfc_sli_api_table_setup - Set up sli api function jump table
8467 * @phba: The hba struct for which this call is being executed.
8468 * @dev_grp: The HBA PCI-Device group number.
8470 * This routine sets up the SLI interface API function jump table in @phba
8472 * Returns: 0 - success, -ENODEV - failure.
8475 lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
8479 case LPFC_PCI_DEV_LP:
8480 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
8481 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
8483 case LPFC_PCI_DEV_OC:
8484 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
8485 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
8488 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8489 "1419 Invalid HBA PCI-device group: 0x%x\n",
8494 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
8499 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
8500 * @phba: Pointer to HBA context object.
8501 * @pring: Pointer to driver SLI ring object.
8502 * @piocb: Pointer to command iocb.
8503 * @flag: Flag indicating if this command can be put into txq.
8505 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
8506 * function. This function gets the hbalock and calls
8507 * __lpfc_sli_issue_iocb function and will return the error returned
8508 * by __lpfc_sli_issue_iocb function. This wrapper is used by
8509 * functions which do not hold hbalock.
8512 lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
8513 struct lpfc_iocbq *piocb, uint32_t flag)
8515 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
8516 struct lpfc_sli_ring *pring;
8517 struct lpfc_queue *fpeq;
8518 struct lpfc_eqe *eqe;
8519 unsigned long iflags;
8522 if (phba->sli_rev == LPFC_SLI_REV4) {
8523 if (piocb->iocb_flag & LPFC_IO_FCP) {
8524 if (unlikely(!phba->sli4_hba.fcp_wq))
8526 idx = lpfc_sli4_scmd_to_wqidx_distr(phba);
8527 piocb->fcp_wqidx = idx;
8528 ring_number = MAX_SLI3_CONFIGURED_RINGS + idx;
8530 pring = &phba->sli.ring[ring_number];
8531 spin_lock_irqsave(&pring->ring_lock, iflags);
8532 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb,
8534 spin_unlock_irqrestore(&pring->ring_lock, iflags);
8536 if (lpfc_fcp_look_ahead) {
8537 fcp_eq_hdl = &phba->sli4_hba.fcp_eq_hdl[idx];
8539 if (atomic_dec_and_test(&fcp_eq_hdl->
8542 /* Get associated EQ with this index */
8543 fpeq = phba->sli4_hba.hba_eq[idx];
8545 /* Turn off interrupts from this EQ */
8546 lpfc_sli4_eq_clr_intr(fpeq);
8549 * Process all the events on FCP EQ
8551 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
8552 lpfc_sli4_hba_handle_eqe(phba,
8554 fpeq->EQ_processed++;
8557 /* Always clear and re-arm the EQ */
8558 lpfc_sli4_eq_release(fpeq,
8561 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
8564 pring = &phba->sli.ring[ring_number];
8565 spin_lock_irqsave(&pring->ring_lock, iflags);
8566 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb,
8568 spin_unlock_irqrestore(&pring->ring_lock, iflags);
8572 /* For now, SLI2/3 will still use hbalock */
8573 spin_lock_irqsave(&phba->hbalock, iflags);
8574 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
8575 spin_unlock_irqrestore(&phba->hbalock, iflags);
8581 * lpfc_extra_ring_setup - Extra ring setup function
8582 * @phba: Pointer to HBA context object.
8584 * This function is called while driver attaches with the
8585 * HBA to setup the extra ring. The extra ring is used
8586 * only when driver needs to support target mode functionality
8587 * or IP over FC functionalities.
8589 * This function is called with no lock held.
8592 lpfc_extra_ring_setup( struct lpfc_hba *phba)
8594 struct lpfc_sli *psli;
8595 struct lpfc_sli_ring *pring;
8599 /* Adjust cmd/rsp ring iocb entries more evenly */
8601 /* Take some away from the FCP ring */
8602 pring = &psli->ring[psli->fcp_ring];
8603 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8604 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8605 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8606 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
8608 /* and give them to the extra ring */
8609 pring = &psli->ring[psli->extra_ring];
8611 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8612 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8613 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8614 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
8616 /* Setup default profile for this ring */
8617 pring->iotag_max = 4096;
8618 pring->num_mask = 1;
8619 pring->prt[0].profile = 0; /* Mask 0 */
8620 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
8621 pring->prt[0].type = phba->cfg_multi_ring_type;
8622 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
8626 /* lpfc_sli_abts_err_handler - handle a failed ABTS request from an SLI3 port.
8627 * @phba: Pointer to HBA context object.
8628 * @iocbq: Pointer to iocb object.
8630 * The async_event handler calls this routine when it receives
8631 * an ASYNC_STATUS_CN event from the port. The port generates
8632 * this event when an Abort Sequence request to an rport fails
8633 * twice in succession. The abort could be originated by the
8634 * driver or by the port. The ABTS could have been for an ELS
8635 * or FCP IO. The port only generates this event when an ABTS
8636 * fails to complete after one retry.
8639 lpfc_sli_abts_err_handler(struct lpfc_hba *phba,
8640 struct lpfc_iocbq *iocbq)
8642 struct lpfc_nodelist *ndlp = NULL;
8643 uint16_t rpi = 0, vpi = 0;
8644 struct lpfc_vport *vport = NULL;
8646 /* The rpi in the ulpContext is vport-sensitive. */
8647 vpi = iocbq->iocb.un.asyncstat.sub_ctxt_tag;
8648 rpi = iocbq->iocb.ulpContext;
8650 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8651 "3092 Port generated ABTS async event "
8652 "on vpi %d rpi %d status 0x%x\n",
8653 vpi, rpi, iocbq->iocb.ulpStatus);
8655 vport = lpfc_find_vport_by_vpid(phba, vpi);
8658 ndlp = lpfc_findnode_rpi(vport, rpi);
8659 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
8662 if (iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT)
8663 lpfc_sli_abts_recover_port(vport, ndlp);
8667 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8668 "3095 Event Context not found, no "
8669 "action on vpi %d rpi %d status 0x%x, reason 0x%x\n",
8670 iocbq->iocb.ulpContext, iocbq->iocb.ulpStatus,
8674 /* lpfc_sli4_abts_err_handler - handle a failed ABTS request from an SLI4 port.
8675 * @phba: pointer to HBA context object.
8676 * @ndlp: nodelist pointer for the impacted rport.
8677 * @axri: pointer to the wcqe containing the failed exchange.
8679 * The driver calls this routine when it receives an ABORT_XRI_FCP CQE from the
8680 * port. The port generates this event when an abort exchange request to an
8681 * rport fails twice in succession with no reply. The abort could be originated
8682 * by the driver or by the port. The ABTS could have been for an ELS or FCP IO.
8685 lpfc_sli4_abts_err_handler(struct lpfc_hba *phba,
8686 struct lpfc_nodelist *ndlp,
8687 struct sli4_wcqe_xri_aborted *axri)
8689 struct lpfc_vport *vport;
8690 uint32_t ext_status = 0;
8692 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
8693 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8694 "3115 Node Context not found, driver "
8695 "ignoring abts err event\n");
8699 vport = ndlp->vport;
8700 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8701 "3116 Port generated FCP XRI ABORT event on "
8702 "vpi %d rpi %d xri x%x status 0x%x parameter x%x\n",
8703 ndlp->vport->vpi, ndlp->nlp_rpi,
8704 bf_get(lpfc_wcqe_xa_xri, axri),
8705 bf_get(lpfc_wcqe_xa_status, axri),
8709 * Catch the ABTS protocol failure case. Older OCe FW releases returned
8710 * LOCAL_REJECT and 0 for a failed ABTS exchange and later OCe and
8711 * LPe FW releases returned LOCAL_REJECT and SEQUENCE_TIMEOUT.
8713 ext_status = axri->parameter & IOERR_PARAM_MASK;
8714 if ((bf_get(lpfc_wcqe_xa_status, axri) == IOSTAT_LOCAL_REJECT) &&
8715 ((ext_status == IOERR_SEQUENCE_TIMEOUT) || (ext_status == 0)))
8716 lpfc_sli_abts_recover_port(vport, ndlp);
8720 * lpfc_sli_async_event_handler - ASYNC iocb handler function
8721 * @phba: Pointer to HBA context object.
8722 * @pring: Pointer to driver SLI ring object.
8723 * @iocbq: Pointer to iocb object.
8725 * This function is called by the slow ring event handler
8726 * function when there is an ASYNC event iocb in the ring.
8727 * This function is called with no lock held.
8728 * Currently this function handles only temperature related
8729 * ASYNC events. The function decodes the temperature sensor
8730 * event message and posts events for the management applications.
8733 lpfc_sli_async_event_handler(struct lpfc_hba * phba,
8734 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
8738 struct temp_event temp_event_data;
8739 struct Scsi_Host *shost;
8742 icmd = &iocbq->iocb;
8743 evt_code = icmd->un.asyncstat.evt_code;
8746 case ASYNC_TEMP_WARN:
8747 case ASYNC_TEMP_SAFE:
8748 temp_event_data.data = (uint32_t) icmd->ulpContext;
8749 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
8750 if (evt_code == ASYNC_TEMP_WARN) {
8751 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
8752 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
8753 "0347 Adapter is very hot, please take "
8754 "corrective action. temperature : %d Celsius\n",
8755 (uint32_t) icmd->ulpContext);
8757 temp_event_data.event_code = LPFC_NORMAL_TEMP;
8758 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
8759 "0340 Adapter temperature is OK now. "
8760 "temperature : %d Celsius\n",
8761 (uint32_t) icmd->ulpContext);
8764 /* Send temperature change event to applications */
8765 shost = lpfc_shost_from_vport(phba->pport);
8766 fc_host_post_vendor_event(shost, fc_get_event_number(),
8767 sizeof(temp_event_data), (char *) &temp_event_data,
8770 case ASYNC_STATUS_CN:
8771 lpfc_sli_abts_err_handler(phba, iocbq);
8774 iocb_w = (uint32_t *) icmd;
8775 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8776 "0346 Ring %d handler: unexpected ASYNC_STATUS"
8778 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
8779 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
8780 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
8781 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
8782 pring->ringno, icmd->un.asyncstat.evt_code,
8783 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
8784 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
8785 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
8786 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
8794 * lpfc_sli_setup - SLI ring setup function
8795 * @phba: Pointer to HBA context object.
8797 * lpfc_sli_setup sets up rings of the SLI interface with
8798 * number of iocbs per ring and iotags. This function is
8799 * called while driver attach to the HBA and before the
8800 * interrupts are enabled. So there is no need for locking.
8802 * This function always returns 0.
8805 lpfc_sli_setup(struct lpfc_hba *phba)
8807 int i, totiocbsize = 0;
8808 struct lpfc_sli *psli = &phba->sli;
8809 struct lpfc_sli_ring *pring;
8811 psli->num_rings = MAX_SLI3_CONFIGURED_RINGS;
8812 if (phba->sli_rev == LPFC_SLI_REV4)
8813 psli->num_rings += phba->cfg_fcp_io_channel;
8815 psli->fcp_ring = LPFC_FCP_RING;
8816 psli->next_ring = LPFC_FCP_NEXT_RING;
8817 psli->extra_ring = LPFC_EXTRA_RING;
8819 psli->iocbq_lookup = NULL;
8820 psli->iocbq_lookup_len = 0;
8821 psli->last_iotag = 0;
8823 for (i = 0; i < psli->num_rings; i++) {
8824 pring = &psli->ring[i];
8826 case LPFC_FCP_RING: /* ring 0 - FCP */
8827 /* numCiocb and numRiocb are used in config_port */
8828 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
8829 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
8830 pring->sli.sli3.numCiocb +=
8831 SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8832 pring->sli.sli3.numRiocb +=
8833 SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8834 pring->sli.sli3.numCiocb +=
8835 SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8836 pring->sli.sli3.numRiocb +=
8837 SLI2_IOCB_RSP_R3XTRA_ENTRIES;
8838 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
8839 SLI3_IOCB_CMD_SIZE :
8841 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
8842 SLI3_IOCB_RSP_SIZE :
8844 pring->iotag_ctr = 0;
8846 (phba->cfg_hba_queue_depth * 2);
8847 pring->fast_iotag = pring->iotag_max;
8848 pring->num_mask = 0;
8850 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
8851 /* numCiocb and numRiocb are used in config_port */
8852 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
8853 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
8854 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
8855 SLI3_IOCB_CMD_SIZE :
8857 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
8858 SLI3_IOCB_RSP_SIZE :
8860 pring->iotag_max = phba->cfg_hba_queue_depth;
8861 pring->num_mask = 0;
8863 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
8864 /* numCiocb and numRiocb are used in config_port */
8865 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
8866 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
8867 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
8868 SLI3_IOCB_CMD_SIZE :
8870 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
8871 SLI3_IOCB_RSP_SIZE :
8873 pring->fast_iotag = 0;
8874 pring->iotag_ctr = 0;
8875 pring->iotag_max = 4096;
8876 pring->lpfc_sli_rcv_async_status =
8877 lpfc_sli_async_event_handler;
8878 pring->num_mask = LPFC_MAX_RING_MASK;
8879 pring->prt[0].profile = 0; /* Mask 0 */
8880 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
8881 pring->prt[0].type = FC_TYPE_ELS;
8882 pring->prt[0].lpfc_sli_rcv_unsol_event =
8883 lpfc_els_unsol_event;
8884 pring->prt[1].profile = 0; /* Mask 1 */
8885 pring->prt[1].rctl = FC_RCTL_ELS_REP;
8886 pring->prt[1].type = FC_TYPE_ELS;
8887 pring->prt[1].lpfc_sli_rcv_unsol_event =
8888 lpfc_els_unsol_event;
8889 pring->prt[2].profile = 0; /* Mask 2 */
8890 /* NameServer Inquiry */
8891 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
8893 pring->prt[2].type = FC_TYPE_CT;
8894 pring->prt[2].lpfc_sli_rcv_unsol_event =
8895 lpfc_ct_unsol_event;
8896 pring->prt[3].profile = 0; /* Mask 3 */
8897 /* NameServer response */
8898 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
8900 pring->prt[3].type = FC_TYPE_CT;
8901 pring->prt[3].lpfc_sli_rcv_unsol_event =
8902 lpfc_ct_unsol_event;
8905 totiocbsize += (pring->sli.sli3.numCiocb *
8906 pring->sli.sli3.sizeCiocb) +
8907 (pring->sli.sli3.numRiocb * pring->sli.sli3.sizeRiocb);
8909 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
8910 /* Too many cmd / rsp ring entries in SLI2 SLIM */
8911 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
8912 "SLI2 SLIM Data: x%x x%lx\n",
8913 phba->brd_no, totiocbsize,
8914 (unsigned long) MAX_SLIM_IOCB_SIZE);
8916 if (phba->cfg_multi_ring_support == 2)
8917 lpfc_extra_ring_setup(phba);
8923 * lpfc_sli_queue_setup - Queue initialization function
8924 * @phba: Pointer to HBA context object.
8926 * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each
8927 * ring. This function also initializes ring indices of each ring.
8928 * This function is called during the initialization of the SLI
8929 * interface of an HBA.
8930 * This function is called with no lock held and always returns
8934 lpfc_sli_queue_setup(struct lpfc_hba *phba)
8936 struct lpfc_sli *psli;
8937 struct lpfc_sli_ring *pring;
8941 spin_lock_irq(&phba->hbalock);
8942 INIT_LIST_HEAD(&psli->mboxq);
8943 INIT_LIST_HEAD(&psli->mboxq_cmpl);
8944 /* Initialize list headers for txq and txcmplq as double linked lists */
8945 for (i = 0; i < psli->num_rings; i++) {
8946 pring = &psli->ring[i];
8948 pring->sli.sli3.next_cmdidx = 0;
8949 pring->sli.sli3.local_getidx = 0;
8950 pring->sli.sli3.cmdidx = 0;
8951 INIT_LIST_HEAD(&pring->txq);
8952 INIT_LIST_HEAD(&pring->txcmplq);
8953 INIT_LIST_HEAD(&pring->iocb_continueq);
8954 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
8955 INIT_LIST_HEAD(&pring->postbufq);
8956 spin_lock_init(&pring->ring_lock);
8958 spin_unlock_irq(&phba->hbalock);
8963 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
8964 * @phba: Pointer to HBA context object.
8966 * This routine flushes the mailbox command subsystem. It will unconditionally
8967 * flush all the mailbox commands in the three possible stages in the mailbox
8968 * command sub-system: pending mailbox command queue; the outstanding mailbox
8969 * command; and completed mailbox command queue. It is caller's responsibility
8970 * to make sure that the driver is in the proper state to flush the mailbox
8971 * command sub-system. Namely, the posting of mailbox commands into the
8972 * pending mailbox command queue from the various clients must be stopped;
8973 * either the HBA is in a state that it will never works on the outstanding
8974 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
8975 * mailbox command has been completed.
8978 lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
8980 LIST_HEAD(completions);
8981 struct lpfc_sli *psli = &phba->sli;
8983 unsigned long iflag;
8985 /* Flush all the mailbox commands in the mbox system */
8986 spin_lock_irqsave(&phba->hbalock, iflag);
8987 /* The pending mailbox command queue */
8988 list_splice_init(&phba->sli.mboxq, &completions);
8989 /* The outstanding active mailbox command */
8990 if (psli->mbox_active) {
8991 list_add_tail(&psli->mbox_active->list, &completions);
8992 psli->mbox_active = NULL;
8993 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8995 /* The completed mailbox command queue */
8996 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
8997 spin_unlock_irqrestore(&phba->hbalock, iflag);
8999 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
9000 while (!list_empty(&completions)) {
9001 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
9002 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
9004 pmb->mbox_cmpl(phba, pmb);
9009 * lpfc_sli_host_down - Vport cleanup function
9010 * @vport: Pointer to virtual port object.
9012 * lpfc_sli_host_down is called to clean up the resources
9013 * associated with a vport before destroying virtual
9014 * port data structures.
9015 * This function does following operations:
9016 * - Free discovery resources associated with this virtual
9018 * - Free iocbs associated with this virtual port in
9020 * - Send abort for all iocb commands associated with this
9023 * This function is called with no lock held and always returns 1.
9026 lpfc_sli_host_down(struct lpfc_vport *vport)
9028 LIST_HEAD(completions);
9029 struct lpfc_hba *phba = vport->phba;
9030 struct lpfc_sli *psli = &phba->sli;
9031 struct lpfc_sli_ring *pring;
9032 struct lpfc_iocbq *iocb, *next_iocb;
9034 unsigned long flags = 0;
9035 uint16_t prev_pring_flag;
9037 lpfc_cleanup_discovery_resources(vport);
9039 spin_lock_irqsave(&phba->hbalock, flags);
9040 for (i = 0; i < psli->num_rings; i++) {
9041 pring = &psli->ring[i];
9042 prev_pring_flag = pring->flag;
9043 /* Only slow rings */
9044 if (pring->ringno == LPFC_ELS_RING) {
9045 pring->flag |= LPFC_DEFERRED_RING_EVENT;
9046 /* Set the lpfc data pending flag */
9047 set_bit(LPFC_DATA_READY, &phba->data_flags);
9050 * Error everything on the txq since these iocbs have not been
9051 * given to the FW yet.
9053 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
9054 if (iocb->vport != vport)
9056 list_move_tail(&iocb->list, &completions);
9060 /* Next issue ABTS for everything on the txcmplq */
9061 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq,
9063 if (iocb->vport != vport)
9065 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
9068 pring->flag = prev_pring_flag;
9071 spin_unlock_irqrestore(&phba->hbalock, flags);
9073 /* Cancel all the IOCBs from the completions list */
9074 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9080 * lpfc_sli_hba_down - Resource cleanup function for the HBA
9081 * @phba: Pointer to HBA context object.
9083 * This function cleans up all iocb, buffers, mailbox commands
9084 * while shutting down the HBA. This function is called with no
9085 * lock held and always returns 1.
9086 * This function does the following to cleanup driver resources:
9087 * - Free discovery resources for each virtual port
9088 * - Cleanup any pending fabric iocbs
9089 * - Iterate through the iocb txq and free each entry
9091 * - Free up any buffer posted to the HBA
9092 * - Free mailbox commands in the mailbox queue.
9095 lpfc_sli_hba_down(struct lpfc_hba *phba)
9097 LIST_HEAD(completions);
9098 struct lpfc_sli *psli = &phba->sli;
9099 struct lpfc_sli_ring *pring;
9100 struct lpfc_dmabuf *buf_ptr;
9101 unsigned long flags = 0;
9104 /* Shutdown the mailbox command sub-system */
9105 lpfc_sli_mbox_sys_shutdown(phba, LPFC_MBX_WAIT);
9107 lpfc_hba_down_prep(phba);
9109 lpfc_fabric_abort_hba(phba);
9111 spin_lock_irqsave(&phba->hbalock, flags);
9112 for (i = 0; i < psli->num_rings; i++) {
9113 pring = &psli->ring[i];
9114 /* Only slow rings */
9115 if (pring->ringno == LPFC_ELS_RING) {
9116 pring->flag |= LPFC_DEFERRED_RING_EVENT;
9117 /* Set the lpfc data pending flag */
9118 set_bit(LPFC_DATA_READY, &phba->data_flags);
9122 * Error everything on the txq since these iocbs have not been
9123 * given to the FW yet.
9125 list_splice_init(&pring->txq, &completions);
9129 spin_unlock_irqrestore(&phba->hbalock, flags);
9131 /* Cancel all the IOCBs from the completions list */
9132 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9135 spin_lock_irqsave(&phba->hbalock, flags);
9136 list_splice_init(&phba->elsbuf, &completions);
9137 phba->elsbuf_cnt = 0;
9138 phba->elsbuf_prev_cnt = 0;
9139 spin_unlock_irqrestore(&phba->hbalock, flags);
9141 while (!list_empty(&completions)) {
9142 list_remove_head(&completions, buf_ptr,
9143 struct lpfc_dmabuf, list);
9144 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
9148 /* Return any active mbox cmds */
9149 del_timer_sync(&psli->mbox_tmo);
9151 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
9152 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
9153 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
9159 * lpfc_sli_pcimem_bcopy - SLI memory copy function
9160 * @srcp: Source memory pointer.
9161 * @destp: Destination memory pointer.
9162 * @cnt: Number of words required to be copied.
9164 * This function is used for copying data between driver memory
9165 * and the SLI memory. This function also changes the endianness
9166 * of each word if native endianness is different from SLI
9167 * endianness. This function can be called with or without
9171 lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
9173 uint32_t *src = srcp;
9174 uint32_t *dest = destp;
9178 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
9180 ldata = le32_to_cpu(ldata);
9189 * lpfc_sli_bemem_bcopy - SLI memory copy function
9190 * @srcp: Source memory pointer.
9191 * @destp: Destination memory pointer.
9192 * @cnt: Number of words required to be copied.
9194 * This function is used for copying data between a data structure
9195 * with big endian representation to local endianness.
9196 * This function can be called with or without lock.
9199 lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
9201 uint32_t *src = srcp;
9202 uint32_t *dest = destp;
9206 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
9208 ldata = be32_to_cpu(ldata);
9216 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
9217 * @phba: Pointer to HBA context object.
9218 * @pring: Pointer to driver SLI ring object.
9219 * @mp: Pointer to driver buffer object.
9221 * This function is called with no lock held.
9222 * It always return zero after adding the buffer to the postbufq
9226 lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9227 struct lpfc_dmabuf *mp)
9229 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
9231 spin_lock_irq(&phba->hbalock);
9232 list_add_tail(&mp->list, &pring->postbufq);
9233 pring->postbufq_cnt++;
9234 spin_unlock_irq(&phba->hbalock);
9239 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
9240 * @phba: Pointer to HBA context object.
9242 * When HBQ is enabled, buffers are searched based on tags. This function
9243 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
9244 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
9245 * does not conflict with tags of buffer posted for unsolicited events.
9246 * The function returns the allocated tag. The function is called with
9250 lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
9252 spin_lock_irq(&phba->hbalock);
9253 phba->buffer_tag_count++;
9255 * Always set the QUE_BUFTAG_BIT to distiguish between
9256 * a tag assigned by HBQ.
9258 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
9259 spin_unlock_irq(&phba->hbalock);
9260 return phba->buffer_tag_count;
9264 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
9265 * @phba: Pointer to HBA context object.
9266 * @pring: Pointer to driver SLI ring object.
9269 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
9270 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
9271 * iocb is posted to the response ring with the tag of the buffer.
9272 * This function searches the pring->postbufq list using the tag
9273 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
9274 * iocb. If the buffer is found then lpfc_dmabuf object of the
9275 * buffer is returned to the caller else NULL is returned.
9276 * This function is called with no lock held.
9278 struct lpfc_dmabuf *
9279 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9282 struct lpfc_dmabuf *mp, *next_mp;
9283 struct list_head *slp = &pring->postbufq;
9285 /* Search postbufq, from the beginning, looking for a match on tag */
9286 spin_lock_irq(&phba->hbalock);
9287 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
9288 if (mp->buffer_tag == tag) {
9289 list_del_init(&mp->list);
9290 pring->postbufq_cnt--;
9291 spin_unlock_irq(&phba->hbalock);
9296 spin_unlock_irq(&phba->hbalock);
9297 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9298 "0402 Cannot find virtual addr for buffer tag on "
9299 "ring %d Data x%lx x%p x%p x%x\n",
9300 pring->ringno, (unsigned long) tag,
9301 slp->next, slp->prev, pring->postbufq_cnt);
9307 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
9308 * @phba: Pointer to HBA context object.
9309 * @pring: Pointer to driver SLI ring object.
9310 * @phys: DMA address of the buffer.
9312 * This function searches the buffer list using the dma_address
9313 * of unsolicited event to find the driver's lpfc_dmabuf object
9314 * corresponding to the dma_address. The function returns the
9315 * lpfc_dmabuf object if a buffer is found else it returns NULL.
9316 * This function is called by the ct and els unsolicited event
9317 * handlers to get the buffer associated with the unsolicited
9320 * This function is called with no lock held.
9322 struct lpfc_dmabuf *
9323 lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9326 struct lpfc_dmabuf *mp, *next_mp;
9327 struct list_head *slp = &pring->postbufq;
9329 /* Search postbufq, from the beginning, looking for a match on phys */
9330 spin_lock_irq(&phba->hbalock);
9331 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
9332 if (mp->phys == phys) {
9333 list_del_init(&mp->list);
9334 pring->postbufq_cnt--;
9335 spin_unlock_irq(&phba->hbalock);
9340 spin_unlock_irq(&phba->hbalock);
9341 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9342 "0410 Cannot find virtual addr for mapped buf on "
9343 "ring %d Data x%llx x%p x%p x%x\n",
9344 pring->ringno, (unsigned long long)phys,
9345 slp->next, slp->prev, pring->postbufq_cnt);
9350 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
9351 * @phba: Pointer to HBA context object.
9352 * @cmdiocb: Pointer to driver command iocb object.
9353 * @rspiocb: Pointer to driver response iocb object.
9355 * This function is the completion handler for the abort iocbs for
9356 * ELS commands. This function is called from the ELS ring event
9357 * handler with no lock held. This function frees memory resources
9358 * associated with the abort iocb.
9361 lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9362 struct lpfc_iocbq *rspiocb)
9364 IOCB_t *irsp = &rspiocb->iocb;
9365 uint16_t abort_iotag, abort_context;
9366 struct lpfc_iocbq *abort_iocb = NULL;
9368 if (irsp->ulpStatus) {
9371 * Assume that the port already completed and returned, or
9372 * will return the iocb. Just Log the message.
9374 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
9375 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
9377 spin_lock_irq(&phba->hbalock);
9378 if (phba->sli_rev < LPFC_SLI_REV4) {
9379 if (abort_iotag != 0 &&
9380 abort_iotag <= phba->sli.last_iotag)
9382 phba->sli.iocbq_lookup[abort_iotag];
9384 /* For sli4 the abort_tag is the XRI,
9385 * so the abort routine puts the iotag of the iocb
9386 * being aborted in the context field of the abort
9389 abort_iocb = phba->sli.iocbq_lookup[abort_context];
9391 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI,
9392 "0327 Cannot abort els iocb %p "
9393 "with tag %x context %x, abort status %x, "
9395 abort_iocb, abort_iotag, abort_context,
9396 irsp->ulpStatus, irsp->un.ulpWord[4]);
9398 spin_unlock_irq(&phba->hbalock);
9400 lpfc_sli_release_iocbq(phba, cmdiocb);
9405 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
9406 * @phba: Pointer to HBA context object.
9407 * @cmdiocb: Pointer to driver command iocb object.
9408 * @rspiocb: Pointer to driver response iocb object.
9410 * The function is called from SLI ring event handler with no
9411 * lock held. This function is the completion handler for ELS commands
9412 * which are aborted. The function frees memory resources used for
9413 * the aborted ELS commands.
9416 lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9417 struct lpfc_iocbq *rspiocb)
9419 IOCB_t *irsp = &rspiocb->iocb;
9421 /* ELS cmd tag <ulpIoTag> completes */
9422 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
9423 "0139 Ignoring ELS cmd tag x%x completion Data: "
9425 irsp->ulpIoTag, irsp->ulpStatus,
9426 irsp->un.ulpWord[4], irsp->ulpTimeout);
9427 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
9428 lpfc_ct_free_iocb(phba, cmdiocb);
9430 lpfc_els_free_iocb(phba, cmdiocb);
9435 * lpfc_sli_abort_iotag_issue - Issue abort for a command iocb
9436 * @phba: Pointer to HBA context object.
9437 * @pring: Pointer to driver SLI ring object.
9438 * @cmdiocb: Pointer to driver command iocb object.
9440 * This function issues an abort iocb for the provided command iocb down to
9441 * the port. Other than the case the outstanding command iocb is an abort
9442 * request, this function issues abort out unconditionally. This function is
9443 * called with hbalock held. The function returns 0 when it fails due to
9444 * memory allocation failure or when the command iocb is an abort request.
9447 lpfc_sli_abort_iotag_issue(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9448 struct lpfc_iocbq *cmdiocb)
9450 struct lpfc_vport *vport = cmdiocb->vport;
9451 struct lpfc_iocbq *abtsiocbp;
9452 IOCB_t *icmd = NULL;
9453 IOCB_t *iabt = NULL;
9455 unsigned long iflags;
9458 * There are certain command types we don't want to abort. And we
9459 * don't want to abort commands that are already in the process of
9462 icmd = &cmdiocb->iocb;
9463 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
9464 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
9465 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
9468 /* issue ABTS for this IOCB based on iotag */
9469 abtsiocbp = __lpfc_sli_get_iocbq(phba);
9470 if (abtsiocbp == NULL)
9473 /* This signals the response to set the correct status
9474 * before calling the completion handler
9476 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
9478 iabt = &abtsiocbp->iocb;
9479 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
9480 iabt->un.acxri.abortContextTag = icmd->ulpContext;
9481 if (phba->sli_rev == LPFC_SLI_REV4) {
9482 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
9483 iabt->un.acxri.abortContextTag = cmdiocb->iotag;
9486 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
9488 iabt->ulpClass = icmd->ulpClass;
9490 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
9491 abtsiocbp->fcp_wqidx = cmdiocb->fcp_wqidx;
9492 if (cmdiocb->iocb_flag & LPFC_IO_FCP)
9493 abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
9495 if (phba->link_state >= LPFC_LINK_UP)
9496 iabt->ulpCommand = CMD_ABORT_XRI_CN;
9498 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
9500 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
9502 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
9503 "0339 Abort xri x%x, original iotag x%x, "
9504 "abort cmd iotag x%x\n",
9505 iabt->un.acxri.abortIoTag,
9506 iabt->un.acxri.abortContextTag,
9509 if (phba->sli_rev == LPFC_SLI_REV4) {
9510 /* Note: both hbalock and ring_lock need to be set here */
9511 spin_lock_irqsave(&pring->ring_lock, iflags);
9512 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
9514 spin_unlock_irqrestore(&pring->ring_lock, iflags);
9516 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
9521 __lpfc_sli_release_iocbq(phba, abtsiocbp);
9524 * Caller to this routine should check for IOCB_ERROR
9525 * and handle it properly. This routine no longer removes
9526 * iocb off txcmplq and call compl in case of IOCB_ERROR.
9532 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
9533 * @phba: Pointer to HBA context object.
9534 * @pring: Pointer to driver SLI ring object.
9535 * @cmdiocb: Pointer to driver command iocb object.
9537 * This function issues an abort iocb for the provided command iocb. In case
9538 * of unloading, the abort iocb will not be issued to commands on the ELS
9539 * ring. Instead, the callback function shall be changed to those commands
9540 * so that nothing happens when them finishes. This function is called with
9541 * hbalock held. The function returns 0 when the command iocb is an abort
9545 lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9546 struct lpfc_iocbq *cmdiocb)
9548 struct lpfc_vport *vport = cmdiocb->vport;
9549 int retval = IOCB_ERROR;
9550 IOCB_t *icmd = NULL;
9553 * There are certain command types we don't want to abort. And we
9554 * don't want to abort commands that are already in the process of
9557 icmd = &cmdiocb->iocb;
9558 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
9559 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
9560 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
9564 * If we're unloading, don't abort iocb on the ELS ring, but change
9565 * the callback so that nothing happens when it finishes.
9567 if ((vport->load_flag & FC_UNLOADING) &&
9568 (pring->ringno == LPFC_ELS_RING)) {
9569 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
9570 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
9572 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
9573 goto abort_iotag_exit;
9576 /* Now, we try to issue the abort to the cmdiocb out */
9577 retval = lpfc_sli_abort_iotag_issue(phba, pring, cmdiocb);
9581 * Caller to this routine should check for IOCB_ERROR
9582 * and handle it properly. This routine no longer removes
9583 * iocb off txcmplq and call compl in case of IOCB_ERROR.
9589 * lpfc_sli_iocb_ring_abort - Unconditionally abort all iocbs on an iocb ring
9590 * @phba: Pointer to HBA context object.
9591 * @pring: Pointer to driver SLI ring object.
9593 * This function aborts all iocbs in the given ring and frees all the iocb
9594 * objects in txq. This function issues abort iocbs unconditionally for all
9595 * the iocb commands in txcmplq. The iocbs in the txcmplq is not guaranteed
9596 * to complete before the return of this function. The caller is not required
9597 * to hold any locks.
9600 lpfc_sli_iocb_ring_abort(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
9602 LIST_HEAD(completions);
9603 struct lpfc_iocbq *iocb, *next_iocb;
9605 if (pring->ringno == LPFC_ELS_RING)
9606 lpfc_fabric_abort_hba(phba);
9608 spin_lock_irq(&phba->hbalock);
9610 /* Take off all the iocbs on txq for cancelling */
9611 list_splice_init(&pring->txq, &completions);
9614 /* Next issue ABTS for everything on the txcmplq */
9615 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
9616 lpfc_sli_abort_iotag_issue(phba, pring, iocb);
9618 spin_unlock_irq(&phba->hbalock);
9620 /* Cancel all the IOCBs from the completions list */
9621 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9626 * lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
9627 * @phba: pointer to lpfc HBA data structure.
9629 * This routine will abort all pending and outstanding iocbs to an HBA.
9632 lpfc_sli_hba_iocb_abort(struct lpfc_hba *phba)
9634 struct lpfc_sli *psli = &phba->sli;
9635 struct lpfc_sli_ring *pring;
9638 for (i = 0; i < psli->num_rings; i++) {
9639 pring = &psli->ring[i];
9640 lpfc_sli_iocb_ring_abort(phba, pring);
9645 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
9646 * @iocbq: Pointer to driver iocb object.
9647 * @vport: Pointer to driver virtual port object.
9648 * @tgt_id: SCSI ID of the target.
9649 * @lun_id: LUN ID of the scsi device.
9650 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
9652 * This function acts as an iocb filter for functions which abort or count
9653 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
9654 * 0 if the filtering criteria is met for the given iocb and will return
9655 * 1 if the filtering criteria is not met.
9656 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
9657 * given iocb is for the SCSI device specified by vport, tgt_id and
9659 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
9660 * given iocb is for the SCSI target specified by vport and tgt_id
9662 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
9663 * given iocb is for the SCSI host associated with the given vport.
9664 * This function is called with no locks held.
9667 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
9668 uint16_t tgt_id, uint64_t lun_id,
9669 lpfc_ctx_cmd ctx_cmd)
9671 struct lpfc_scsi_buf *lpfc_cmd;
9674 if (!(iocbq->iocb_flag & LPFC_IO_FCP))
9677 if (iocbq->vport != vport)
9680 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
9682 if (lpfc_cmd->pCmd == NULL)
9687 if ((lpfc_cmd->rdata->pnode) &&
9688 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
9689 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
9693 if ((lpfc_cmd->rdata->pnode) &&
9694 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
9701 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
9710 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
9711 * @vport: Pointer to virtual port.
9712 * @tgt_id: SCSI ID of the target.
9713 * @lun_id: LUN ID of the scsi device.
9714 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
9716 * This function returns number of FCP commands pending for the vport.
9717 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
9718 * commands pending on the vport associated with SCSI device specified
9719 * by tgt_id and lun_id parameters.
9720 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
9721 * commands pending on the vport associated with SCSI target specified
9722 * by tgt_id parameter.
9723 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
9724 * commands pending on the vport.
9725 * This function returns the number of iocbs which satisfy the filter.
9726 * This function is called without any lock held.
9729 lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
9730 lpfc_ctx_cmd ctx_cmd)
9732 struct lpfc_hba *phba = vport->phba;
9733 struct lpfc_iocbq *iocbq;
9736 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
9737 iocbq = phba->sli.iocbq_lookup[i];
9739 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
9748 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
9749 * @phba: Pointer to HBA context object
9750 * @cmdiocb: Pointer to command iocb object.
9751 * @rspiocb: Pointer to response iocb object.
9753 * This function is called when an aborted FCP iocb completes. This
9754 * function is called by the ring event handler with no lock held.
9755 * This function frees the iocb.
9758 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9759 struct lpfc_iocbq *rspiocb)
9761 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9762 "3096 ABORT_XRI_CN completing on xri x%x "
9763 "original iotag x%x, abort cmd iotag x%x "
9764 "status 0x%x, reason 0x%x\n",
9765 cmdiocb->iocb.un.acxri.abortContextTag,
9766 cmdiocb->iocb.un.acxri.abortIoTag,
9767 cmdiocb->iotag, rspiocb->iocb.ulpStatus,
9768 rspiocb->iocb.un.ulpWord[4]);
9769 lpfc_sli_release_iocbq(phba, cmdiocb);
9774 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
9775 * @vport: Pointer to virtual port.
9776 * @pring: Pointer to driver SLI ring object.
9777 * @tgt_id: SCSI ID of the target.
9778 * @lun_id: LUN ID of the scsi device.
9779 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
9781 * This function sends an abort command for every SCSI command
9782 * associated with the given virtual port pending on the ring
9783 * filtered by lpfc_sli_validate_fcp_iocb function.
9784 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
9785 * FCP iocbs associated with lun specified by tgt_id and lun_id
9787 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
9788 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
9789 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
9790 * FCP iocbs associated with virtual port.
9791 * This function returns number of iocbs it failed to abort.
9792 * This function is called with no locks held.
9795 lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
9796 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
9798 struct lpfc_hba *phba = vport->phba;
9799 struct lpfc_iocbq *iocbq;
9800 struct lpfc_iocbq *abtsiocb;
9802 int errcnt = 0, ret_val = 0;
9805 for (i = 1; i <= phba->sli.last_iotag; i++) {
9806 iocbq = phba->sli.iocbq_lookup[i];
9808 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
9812 /* issue ABTS for this IOCB based on iotag */
9813 abtsiocb = lpfc_sli_get_iocbq(phba);
9814 if (abtsiocb == NULL) {
9820 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
9821 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
9822 if (phba->sli_rev == LPFC_SLI_REV4)
9823 abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
9825 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
9826 abtsiocb->iocb.ulpLe = 1;
9827 abtsiocb->iocb.ulpClass = cmd->ulpClass;
9828 abtsiocb->vport = phba->pport;
9830 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
9831 abtsiocb->fcp_wqidx = iocbq->fcp_wqidx;
9832 if (iocbq->iocb_flag & LPFC_IO_FCP)
9833 abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
9835 if (lpfc_is_link_up(phba))
9836 abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
9838 abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
9840 /* Setup callback routine and issue the command. */
9841 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
9842 ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
9844 if (ret_val == IOCB_ERROR) {
9845 lpfc_sli_release_iocbq(phba, abtsiocb);
9855 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
9856 * @phba: Pointer to HBA context object.
9857 * @cmdiocbq: Pointer to command iocb.
9858 * @rspiocbq: Pointer to response iocb.
9860 * This function is the completion handler for iocbs issued using
9861 * lpfc_sli_issue_iocb_wait function. This function is called by the
9862 * ring event handler function without any lock held. This function
9863 * can be called from both worker thread context and interrupt
9864 * context. This function also can be called from other thread which
9865 * cleans up the SLI layer objects.
9866 * This function copy the contents of the response iocb to the
9867 * response iocb memory object provided by the caller of
9868 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
9869 * sleeps for the iocb completion.
9872 lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
9873 struct lpfc_iocbq *cmdiocbq,
9874 struct lpfc_iocbq *rspiocbq)
9876 wait_queue_head_t *pdone_q;
9877 unsigned long iflags;
9878 struct lpfc_scsi_buf *lpfc_cmd;
9880 spin_lock_irqsave(&phba->hbalock, iflags);
9881 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
9882 if (cmdiocbq->context2 && rspiocbq)
9883 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
9884 &rspiocbq->iocb, sizeof(IOCB_t));
9886 /* Set the exchange busy flag for task management commands */
9887 if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) &&
9888 !(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) {
9889 lpfc_cmd = container_of(cmdiocbq, struct lpfc_scsi_buf,
9891 lpfc_cmd->exch_busy = rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY;
9894 pdone_q = cmdiocbq->context_un.wait_queue;
9897 spin_unlock_irqrestore(&phba->hbalock, iflags);
9902 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
9903 * @phba: Pointer to HBA context object..
9904 * @piocbq: Pointer to command iocb.
9905 * @flag: Flag to test.
9907 * This routine grabs the hbalock and then test the iocb_flag to
9908 * see if the passed in flag is set.
9911 * 0 if flag is not set.
9914 lpfc_chk_iocb_flg(struct lpfc_hba *phba,
9915 struct lpfc_iocbq *piocbq, uint32_t flag)
9917 unsigned long iflags;
9920 spin_lock_irqsave(&phba->hbalock, iflags);
9921 ret = piocbq->iocb_flag & flag;
9922 spin_unlock_irqrestore(&phba->hbalock, iflags);
9928 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
9929 * @phba: Pointer to HBA context object..
9930 * @pring: Pointer to sli ring.
9931 * @piocb: Pointer to command iocb.
9932 * @prspiocbq: Pointer to response iocb.
9933 * @timeout: Timeout in number of seconds.
9935 * This function issues the iocb to firmware and waits for the
9936 * iocb to complete. If the iocb command is not
9937 * completed within timeout seconds, it returns IOCB_TIMEDOUT.
9938 * Caller should not free the iocb resources if this function
9939 * returns IOCB_TIMEDOUT.
9940 * The function waits for the iocb completion using an
9941 * non-interruptible wait.
9942 * This function will sleep while waiting for iocb completion.
9943 * So, this function should not be called from any context which
9944 * does not allow sleeping. Due to the same reason, this function
9945 * cannot be called with interrupt disabled.
9946 * This function assumes that the iocb completions occur while
9947 * this function sleep. So, this function cannot be called from
9948 * the thread which process iocb completion for this ring.
9949 * This function clears the iocb_flag of the iocb object before
9950 * issuing the iocb and the iocb completion handler sets this
9951 * flag and wakes this thread when the iocb completes.
9952 * The contents of the response iocb will be copied to prspiocbq
9953 * by the completion handler when the command completes.
9954 * This function returns IOCB_SUCCESS when success.
9955 * This function is called with no lock held.
9958 lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
9959 uint32_t ring_number,
9960 struct lpfc_iocbq *piocb,
9961 struct lpfc_iocbq *prspiocbq,
9964 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
9965 long timeleft, timeout_req = 0;
9966 int retval = IOCB_SUCCESS;
9968 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
9970 * If the caller has provided a response iocbq buffer, then context2
9971 * is NULL or its an error.
9974 if (piocb->context2)
9976 piocb->context2 = prspiocbq;
9979 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
9980 piocb->context_un.wait_queue = &done_q;
9981 piocb->iocb_flag &= ~LPFC_IO_WAKE;
9983 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
9984 if (lpfc_readl(phba->HCregaddr, &creg_val))
9986 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
9987 writel(creg_val, phba->HCregaddr);
9988 readl(phba->HCregaddr); /* flush */
9991 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb,
9993 if (retval == IOCB_SUCCESS) {
9994 timeout_req = timeout * HZ;
9995 timeleft = wait_event_timeout(done_q,
9996 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
9999 if (piocb->iocb_flag & LPFC_IO_WAKE) {
10000 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10001 "0331 IOCB wake signaled\n");
10002 } else if (timeleft == 0) {
10003 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10004 "0338 IOCB wait timeout error - no "
10005 "wake response Data x%x\n", timeout);
10006 retval = IOCB_TIMEDOUT;
10008 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10009 "0330 IOCB wake NOT set, "
10011 timeout, (timeleft / jiffies));
10012 retval = IOCB_TIMEDOUT;
10014 } else if (retval == IOCB_BUSY) {
10015 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10016 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
10017 phba->iocb_cnt, pring->txq_cnt, pring->txcmplq_cnt);
10020 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10021 "0332 IOCB wait issue failed, Data x%x\n",
10023 retval = IOCB_ERROR;
10026 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
10027 if (lpfc_readl(phba->HCregaddr, &creg_val))
10029 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
10030 writel(creg_val, phba->HCregaddr);
10031 readl(phba->HCregaddr); /* flush */
10035 piocb->context2 = NULL;
10037 piocb->context_un.wait_queue = NULL;
10038 piocb->iocb_cmpl = NULL;
10043 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
10044 * @phba: Pointer to HBA context object.
10045 * @pmboxq: Pointer to driver mailbox object.
10046 * @timeout: Timeout in number of seconds.
10048 * This function issues the mailbox to firmware and waits for the
10049 * mailbox command to complete. If the mailbox command is not
10050 * completed within timeout seconds, it returns MBX_TIMEOUT.
10051 * The function waits for the mailbox completion using an
10052 * interruptible wait. If the thread is woken up due to a
10053 * signal, MBX_TIMEOUT error is returned to the caller. Caller
10054 * should not free the mailbox resources, if this function returns
10056 * This function will sleep while waiting for mailbox completion.
10057 * So, this function should not be called from any context which
10058 * does not allow sleeping. Due to the same reason, this function
10059 * cannot be called with interrupt disabled.
10060 * This function assumes that the mailbox completion occurs while
10061 * this function sleep. So, this function cannot be called from
10062 * the worker thread which processes mailbox completion.
10063 * This function is called in the context of HBA management
10065 * This function returns MBX_SUCCESS when successful.
10066 * This function is called with no lock held.
10069 lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
10072 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
10074 unsigned long flag;
10076 /* The caller must leave context1 empty. */
10077 if (pmboxq->context1)
10078 return MBX_NOT_FINISHED;
10080 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
10081 /* setup wake call as IOCB callback */
10082 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
10083 /* setup context field to pass wait_queue pointer to wake function */
10084 pmboxq->context1 = &done_q;
10086 /* now issue the command */
10087 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
10088 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
10089 wait_event_interruptible_timeout(done_q,
10090 pmboxq->mbox_flag & LPFC_MBX_WAKE,
10093 spin_lock_irqsave(&phba->hbalock, flag);
10094 pmboxq->context1 = NULL;
10096 * if LPFC_MBX_WAKE flag is set the mailbox is completed
10097 * else do not free the resources.
10099 if (pmboxq->mbox_flag & LPFC_MBX_WAKE) {
10100 retval = MBX_SUCCESS;
10101 lpfc_sli4_swap_str(phba, pmboxq);
10103 retval = MBX_TIMEOUT;
10104 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10106 spin_unlock_irqrestore(&phba->hbalock, flag);
10113 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
10114 * @phba: Pointer to HBA context.
10116 * This function is called to shutdown the driver's mailbox sub-system.
10117 * It first marks the mailbox sub-system is in a block state to prevent
10118 * the asynchronous mailbox command from issued off the pending mailbox
10119 * command queue. If the mailbox command sub-system shutdown is due to
10120 * HBA error conditions such as EEH or ERATT, this routine shall invoke
10121 * the mailbox sub-system flush routine to forcefully bring down the
10122 * mailbox sub-system. Otherwise, if it is due to normal condition (such
10123 * as with offline or HBA function reset), this routine will wait for the
10124 * outstanding mailbox command to complete before invoking the mailbox
10125 * sub-system flush routine to gracefully bring down mailbox sub-system.
10128 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba, int mbx_action)
10130 struct lpfc_sli *psli = &phba->sli;
10131 unsigned long timeout;
10133 if (mbx_action == LPFC_MBX_NO_WAIT) {
10134 /* delay 100ms for port state */
10136 lpfc_sli_mbox_sys_flush(phba);
10139 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
10141 spin_lock_irq(&phba->hbalock);
10142 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
10144 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
10145 /* Determine how long we might wait for the active mailbox
10146 * command to be gracefully completed by firmware.
10148 if (phba->sli.mbox_active)
10149 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
10150 phba->sli.mbox_active) *
10152 spin_unlock_irq(&phba->hbalock);
10154 while (phba->sli.mbox_active) {
10155 /* Check active mailbox complete status every 2ms */
10157 if (time_after(jiffies, timeout))
10158 /* Timeout, let the mailbox flush routine to
10159 * forcefully release active mailbox command
10164 spin_unlock_irq(&phba->hbalock);
10166 lpfc_sli_mbox_sys_flush(phba);
10170 * lpfc_sli_eratt_read - read sli-3 error attention events
10171 * @phba: Pointer to HBA context.
10173 * This function is called to read the SLI3 device error attention registers
10174 * for possible error attention events. The caller must hold the hostlock
10175 * with spin_lock_irq().
10177 * This function returns 1 when there is Error Attention in the Host Attention
10178 * Register and returns 0 otherwise.
10181 lpfc_sli_eratt_read(struct lpfc_hba *phba)
10185 /* Read chip Host Attention (HA) register */
10186 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10189 if (ha_copy & HA_ERATT) {
10190 /* Read host status register to retrieve error event */
10191 if (lpfc_sli_read_hs(phba))
10194 /* Check if there is a deferred error condition is active */
10195 if ((HS_FFER1 & phba->work_hs) &&
10196 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
10197 HS_FFER6 | HS_FFER7 | HS_FFER8) & phba->work_hs)) {
10198 phba->hba_flag |= DEFER_ERATT;
10199 /* Clear all interrupt enable conditions */
10200 writel(0, phba->HCregaddr);
10201 readl(phba->HCregaddr);
10204 /* Set the driver HA work bitmap */
10205 phba->work_ha |= HA_ERATT;
10206 /* Indicate polling handles this ERATT */
10207 phba->hba_flag |= HBA_ERATT_HANDLED;
10213 /* Set the driver HS work bitmap */
10214 phba->work_hs |= UNPLUG_ERR;
10215 /* Set the driver HA work bitmap */
10216 phba->work_ha |= HA_ERATT;
10217 /* Indicate polling handles this ERATT */
10218 phba->hba_flag |= HBA_ERATT_HANDLED;
10223 * lpfc_sli4_eratt_read - read sli-4 error attention events
10224 * @phba: Pointer to HBA context.
10226 * This function is called to read the SLI4 device error attention registers
10227 * for possible error attention events. The caller must hold the hostlock
10228 * with spin_lock_irq().
10230 * This function returns 1 when there is Error Attention in the Host Attention
10231 * Register and returns 0 otherwise.
10234 lpfc_sli4_eratt_read(struct lpfc_hba *phba)
10236 uint32_t uerr_sta_hi, uerr_sta_lo;
10237 uint32_t if_type, portsmphr;
10238 struct lpfc_register portstat_reg;
10241 * For now, use the SLI4 device internal unrecoverable error
10242 * registers for error attention. This can be changed later.
10244 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10246 case LPFC_SLI_INTF_IF_TYPE_0:
10247 if (lpfc_readl(phba->sli4_hba.u.if_type0.UERRLOregaddr,
10249 lpfc_readl(phba->sli4_hba.u.if_type0.UERRHIregaddr,
10251 phba->work_hs |= UNPLUG_ERR;
10252 phba->work_ha |= HA_ERATT;
10253 phba->hba_flag |= HBA_ERATT_HANDLED;
10256 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
10257 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
10258 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10259 "1423 HBA Unrecoverable error: "
10260 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
10261 "ue_mask_lo_reg=0x%x, "
10262 "ue_mask_hi_reg=0x%x\n",
10263 uerr_sta_lo, uerr_sta_hi,
10264 phba->sli4_hba.ue_mask_lo,
10265 phba->sli4_hba.ue_mask_hi);
10266 phba->work_status[0] = uerr_sta_lo;
10267 phba->work_status[1] = uerr_sta_hi;
10268 phba->work_ha |= HA_ERATT;
10269 phba->hba_flag |= HBA_ERATT_HANDLED;
10273 case LPFC_SLI_INTF_IF_TYPE_2:
10274 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
10275 &portstat_reg.word0) ||
10276 lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
10278 phba->work_hs |= UNPLUG_ERR;
10279 phba->work_ha |= HA_ERATT;
10280 phba->hba_flag |= HBA_ERATT_HANDLED;
10283 if (bf_get(lpfc_sliport_status_err, &portstat_reg)) {
10284 phba->work_status[0] =
10285 readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
10286 phba->work_status[1] =
10287 readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
10288 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10289 "2885 Port Status Event: "
10290 "port status reg 0x%x, "
10291 "port smphr reg 0x%x, "
10292 "error 1=0x%x, error 2=0x%x\n",
10293 portstat_reg.word0,
10295 phba->work_status[0],
10296 phba->work_status[1]);
10297 phba->work_ha |= HA_ERATT;
10298 phba->hba_flag |= HBA_ERATT_HANDLED;
10302 case LPFC_SLI_INTF_IF_TYPE_1:
10304 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10305 "2886 HBA Error Attention on unsupported "
10306 "if type %d.", if_type);
10314 * lpfc_sli_check_eratt - check error attention events
10315 * @phba: Pointer to HBA context.
10317 * This function is called from timer soft interrupt context to check HBA's
10318 * error attention register bit for error attention events.
10320 * This function returns 1 when there is Error Attention in the Host Attention
10321 * Register and returns 0 otherwise.
10324 lpfc_sli_check_eratt(struct lpfc_hba *phba)
10328 /* If somebody is waiting to handle an eratt, don't process it
10329 * here. The brdkill function will do this.
10331 if (phba->link_flag & LS_IGNORE_ERATT)
10334 /* Check if interrupt handler handles this ERATT */
10335 spin_lock_irq(&phba->hbalock);
10336 if (phba->hba_flag & HBA_ERATT_HANDLED) {
10337 /* Interrupt handler has handled ERATT */
10338 spin_unlock_irq(&phba->hbalock);
10343 * If there is deferred error attention, do not check for error
10346 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10347 spin_unlock_irq(&phba->hbalock);
10351 /* If PCI channel is offline, don't process it */
10352 if (unlikely(pci_channel_offline(phba->pcidev))) {
10353 spin_unlock_irq(&phba->hbalock);
10357 switch (phba->sli_rev) {
10358 case LPFC_SLI_REV2:
10359 case LPFC_SLI_REV3:
10360 /* Read chip Host Attention (HA) register */
10361 ha_copy = lpfc_sli_eratt_read(phba);
10363 case LPFC_SLI_REV4:
10364 /* Read device Uncoverable Error (UERR) registers */
10365 ha_copy = lpfc_sli4_eratt_read(phba);
10368 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10369 "0299 Invalid SLI revision (%d)\n",
10374 spin_unlock_irq(&phba->hbalock);
10380 * lpfc_intr_state_check - Check device state for interrupt handling
10381 * @phba: Pointer to HBA context.
10383 * This inline routine checks whether a device or its PCI slot is in a state
10384 * that the interrupt should be handled.
10386 * This function returns 0 if the device or the PCI slot is in a state that
10387 * interrupt should be handled, otherwise -EIO.
10390 lpfc_intr_state_check(struct lpfc_hba *phba)
10392 /* If the pci channel is offline, ignore all the interrupts */
10393 if (unlikely(pci_channel_offline(phba->pcidev)))
10396 /* Update device level interrupt statistics */
10397 phba->sli.slistat.sli_intr++;
10399 /* Ignore all interrupts during initialization. */
10400 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
10407 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
10408 * @irq: Interrupt number.
10409 * @dev_id: The device context pointer.
10411 * This function is directly called from the PCI layer as an interrupt
10412 * service routine when device with SLI-3 interface spec is enabled with
10413 * MSI-X multi-message interrupt mode and there are slow-path events in
10414 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
10415 * interrupt mode, this function is called as part of the device-level
10416 * interrupt handler. When the PCI slot is in error recovery or the HBA
10417 * is undergoing initialization, the interrupt handler will not process
10418 * the interrupt. The link attention and ELS ring attention events are
10419 * handled by the worker thread. The interrupt handler signals the worker
10420 * thread and returns for these events. This function is called without
10421 * any lock held. It gets the hbalock to access and update SLI data
10424 * This function returns IRQ_HANDLED when interrupt is handled else it
10425 * returns IRQ_NONE.
10428 lpfc_sli_sp_intr_handler(int irq, void *dev_id)
10430 struct lpfc_hba *phba;
10431 uint32_t ha_copy, hc_copy;
10432 uint32_t work_ha_copy;
10433 unsigned long status;
10434 unsigned long iflag;
10437 MAILBOX_t *mbox, *pmbox;
10438 struct lpfc_vport *vport;
10439 struct lpfc_nodelist *ndlp;
10440 struct lpfc_dmabuf *mp;
10445 * Get the driver's phba structure from the dev_id and
10446 * assume the HBA is not interrupting.
10448 phba = (struct lpfc_hba *)dev_id;
10450 if (unlikely(!phba))
10454 * Stuff needs to be attented to when this function is invoked as an
10455 * individual interrupt handler in MSI-X multi-message interrupt mode
10457 if (phba->intr_type == MSIX) {
10458 /* Check device state for handling interrupt */
10459 if (lpfc_intr_state_check(phba))
10461 /* Need to read HA REG for slow-path events */
10462 spin_lock_irqsave(&phba->hbalock, iflag);
10463 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10465 /* If somebody is waiting to handle an eratt don't process it
10466 * here. The brdkill function will do this.
10468 if (phba->link_flag & LS_IGNORE_ERATT)
10469 ha_copy &= ~HA_ERATT;
10470 /* Check the need for handling ERATT in interrupt handler */
10471 if (ha_copy & HA_ERATT) {
10472 if (phba->hba_flag & HBA_ERATT_HANDLED)
10473 /* ERATT polling has handled ERATT */
10474 ha_copy &= ~HA_ERATT;
10476 /* Indicate interrupt handler handles ERATT */
10477 phba->hba_flag |= HBA_ERATT_HANDLED;
10481 * If there is deferred error attention, do not check for any
10484 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10485 spin_unlock_irqrestore(&phba->hbalock, iflag);
10489 /* Clear up only attention source related to slow-path */
10490 if (lpfc_readl(phba->HCregaddr, &hc_copy))
10493 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
10494 HC_LAINT_ENA | HC_ERINT_ENA),
10496 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
10498 writel(hc_copy, phba->HCregaddr);
10499 readl(phba->HAregaddr); /* flush */
10500 spin_unlock_irqrestore(&phba->hbalock, iflag);
10502 ha_copy = phba->ha_copy;
10504 work_ha_copy = ha_copy & phba->work_ha_mask;
10506 if (work_ha_copy) {
10507 if (work_ha_copy & HA_LATT) {
10508 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
10510 * Turn off Link Attention interrupts
10511 * until CLEAR_LA done
10513 spin_lock_irqsave(&phba->hbalock, iflag);
10514 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
10515 if (lpfc_readl(phba->HCregaddr, &control))
10517 control &= ~HC_LAINT_ENA;
10518 writel(control, phba->HCregaddr);
10519 readl(phba->HCregaddr); /* flush */
10520 spin_unlock_irqrestore(&phba->hbalock, iflag);
10523 work_ha_copy &= ~HA_LATT;
10526 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
10528 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
10529 * the only slow ring.
10531 status = (work_ha_copy &
10532 (HA_RXMASK << (4*LPFC_ELS_RING)));
10533 status >>= (4*LPFC_ELS_RING);
10534 if (status & HA_RXMASK) {
10535 spin_lock_irqsave(&phba->hbalock, iflag);
10536 if (lpfc_readl(phba->HCregaddr, &control))
10539 lpfc_debugfs_slow_ring_trc(phba,
10540 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
10542 (uint32_t)phba->sli.slistat.sli_intr);
10544 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
10545 lpfc_debugfs_slow_ring_trc(phba,
10546 "ISR Disable ring:"
10547 "pwork:x%x hawork:x%x wait:x%x",
10548 phba->work_ha, work_ha_copy,
10549 (uint32_t)((unsigned long)
10550 &phba->work_waitq));
10553 ~(HC_R0INT_ENA << LPFC_ELS_RING);
10554 writel(control, phba->HCregaddr);
10555 readl(phba->HCregaddr); /* flush */
10558 lpfc_debugfs_slow_ring_trc(phba,
10559 "ISR slow ring: pwork:"
10560 "x%x hawork:x%x wait:x%x",
10561 phba->work_ha, work_ha_copy,
10562 (uint32_t)((unsigned long)
10563 &phba->work_waitq));
10565 spin_unlock_irqrestore(&phba->hbalock, iflag);
10568 spin_lock_irqsave(&phba->hbalock, iflag);
10569 if (work_ha_copy & HA_ERATT) {
10570 if (lpfc_sli_read_hs(phba))
10573 * Check if there is a deferred error condition
10576 if ((HS_FFER1 & phba->work_hs) &&
10577 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
10578 HS_FFER6 | HS_FFER7 | HS_FFER8) &
10580 phba->hba_flag |= DEFER_ERATT;
10581 /* Clear all interrupt enable conditions */
10582 writel(0, phba->HCregaddr);
10583 readl(phba->HCregaddr);
10587 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
10588 pmb = phba->sli.mbox_active;
10589 pmbox = &pmb->u.mb;
10591 vport = pmb->vport;
10593 /* First check out the status word */
10594 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
10595 if (pmbox->mbxOwner != OWN_HOST) {
10596 spin_unlock_irqrestore(&phba->hbalock, iflag);
10598 * Stray Mailbox Interrupt, mbxCommand <cmd>
10599 * mbxStatus <status>
10601 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
10603 "(%d):0304 Stray Mailbox "
10604 "Interrupt mbxCommand x%x "
10606 (vport ? vport->vpi : 0),
10609 /* clear mailbox attention bit */
10610 work_ha_copy &= ~HA_MBATT;
10612 phba->sli.mbox_active = NULL;
10613 spin_unlock_irqrestore(&phba->hbalock, iflag);
10614 phba->last_completion_time = jiffies;
10615 del_timer(&phba->sli.mbox_tmo);
10616 if (pmb->mbox_cmpl) {
10617 lpfc_sli_pcimem_bcopy(mbox, pmbox,
10619 if (pmb->out_ext_byte_len &&
10621 lpfc_sli_pcimem_bcopy(
10624 pmb->out_ext_byte_len);
10626 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
10627 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
10629 lpfc_debugfs_disc_trc(vport,
10630 LPFC_DISC_TRC_MBOX_VPORT,
10631 "MBOX dflt rpi: : "
10632 "status:x%x rpi:x%x",
10633 (uint32_t)pmbox->mbxStatus,
10634 pmbox->un.varWords[0], 0);
10636 if (!pmbox->mbxStatus) {
10637 mp = (struct lpfc_dmabuf *)
10639 ndlp = (struct lpfc_nodelist *)
10642 /* Reg_LOGIN of dflt RPI was
10643 * successful. new lets get
10644 * rid of the RPI using the
10645 * same mbox buffer.
10647 lpfc_unreg_login(phba,
10649 pmbox->un.varWords[0],
10652 lpfc_mbx_cmpl_dflt_rpi;
10653 pmb->context1 = mp;
10654 pmb->context2 = ndlp;
10655 pmb->vport = vport;
10656 rc = lpfc_sli_issue_mbox(phba,
10659 if (rc != MBX_BUSY)
10660 lpfc_printf_log(phba,
10662 LOG_MBOX | LOG_SLI,
10663 "0350 rc should have"
10664 "been MBX_BUSY\n");
10665 if (rc != MBX_NOT_FINISHED)
10666 goto send_current_mbox;
10670 &phba->pport->work_port_lock,
10672 phba->pport->work_port_events &=
10674 spin_unlock_irqrestore(
10675 &phba->pport->work_port_lock,
10677 lpfc_mbox_cmpl_put(phba, pmb);
10680 spin_unlock_irqrestore(&phba->hbalock, iflag);
10682 if ((work_ha_copy & HA_MBATT) &&
10683 (phba->sli.mbox_active == NULL)) {
10685 /* Process next mailbox command if there is one */
10687 rc = lpfc_sli_issue_mbox(phba, NULL,
10689 } while (rc == MBX_NOT_FINISHED);
10690 if (rc != MBX_SUCCESS)
10691 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
10692 LOG_SLI, "0349 rc should be "
10696 spin_lock_irqsave(&phba->hbalock, iflag);
10697 phba->work_ha |= work_ha_copy;
10698 spin_unlock_irqrestore(&phba->hbalock, iflag);
10699 lpfc_worker_wake_up(phba);
10701 return IRQ_HANDLED;
10703 spin_unlock_irqrestore(&phba->hbalock, iflag);
10704 return IRQ_HANDLED;
10706 } /* lpfc_sli_sp_intr_handler */
10709 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
10710 * @irq: Interrupt number.
10711 * @dev_id: The device context pointer.
10713 * This function is directly called from the PCI layer as an interrupt
10714 * service routine when device with SLI-3 interface spec is enabled with
10715 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
10716 * ring event in the HBA. However, when the device is enabled with either
10717 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
10718 * device-level interrupt handler. When the PCI slot is in error recovery
10719 * or the HBA is undergoing initialization, the interrupt handler will not
10720 * process the interrupt. The SCSI FCP fast-path ring event are handled in
10721 * the intrrupt context. This function is called without any lock held.
10722 * It gets the hbalock to access and update SLI data structures.
10724 * This function returns IRQ_HANDLED when interrupt is handled else it
10725 * returns IRQ_NONE.
10728 lpfc_sli_fp_intr_handler(int irq, void *dev_id)
10730 struct lpfc_hba *phba;
10732 unsigned long status;
10733 unsigned long iflag;
10735 /* Get the driver's phba structure from the dev_id and
10736 * assume the HBA is not interrupting.
10738 phba = (struct lpfc_hba *) dev_id;
10740 if (unlikely(!phba))
10744 * Stuff needs to be attented to when this function is invoked as an
10745 * individual interrupt handler in MSI-X multi-message interrupt mode
10747 if (phba->intr_type == MSIX) {
10748 /* Check device state for handling interrupt */
10749 if (lpfc_intr_state_check(phba))
10751 /* Need to read HA REG for FCP ring and other ring events */
10752 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10753 return IRQ_HANDLED;
10754 /* Clear up only attention source related to fast-path */
10755 spin_lock_irqsave(&phba->hbalock, iflag);
10757 * If there is deferred error attention, do not check for
10760 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10761 spin_unlock_irqrestore(&phba->hbalock, iflag);
10764 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
10766 readl(phba->HAregaddr); /* flush */
10767 spin_unlock_irqrestore(&phba->hbalock, iflag);
10769 ha_copy = phba->ha_copy;
10772 * Process all events on FCP ring. Take the optimized path for FCP IO.
10774 ha_copy &= ~(phba->work_ha_mask);
10776 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
10777 status >>= (4*LPFC_FCP_RING);
10778 if (status & HA_RXMASK)
10779 lpfc_sli_handle_fast_ring_event(phba,
10780 &phba->sli.ring[LPFC_FCP_RING],
10783 if (phba->cfg_multi_ring_support == 2) {
10785 * Process all events on extra ring. Take the optimized path
10786 * for extra ring IO.
10788 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
10789 status >>= (4*LPFC_EXTRA_RING);
10790 if (status & HA_RXMASK) {
10791 lpfc_sli_handle_fast_ring_event(phba,
10792 &phba->sli.ring[LPFC_EXTRA_RING],
10796 return IRQ_HANDLED;
10797 } /* lpfc_sli_fp_intr_handler */
10800 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
10801 * @irq: Interrupt number.
10802 * @dev_id: The device context pointer.
10804 * This function is the HBA device-level interrupt handler to device with
10805 * SLI-3 interface spec, called from the PCI layer when either MSI or
10806 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
10807 * requires driver attention. This function invokes the slow-path interrupt
10808 * attention handling function and fast-path interrupt attention handling
10809 * function in turn to process the relevant HBA attention events. This
10810 * function is called without any lock held. It gets the hbalock to access
10811 * and update SLI data structures.
10813 * This function returns IRQ_HANDLED when interrupt is handled, else it
10814 * returns IRQ_NONE.
10817 lpfc_sli_intr_handler(int irq, void *dev_id)
10819 struct lpfc_hba *phba;
10820 irqreturn_t sp_irq_rc, fp_irq_rc;
10821 unsigned long status1, status2;
10825 * Get the driver's phba structure from the dev_id and
10826 * assume the HBA is not interrupting.
10828 phba = (struct lpfc_hba *) dev_id;
10830 if (unlikely(!phba))
10833 /* Check device state for handling interrupt */
10834 if (lpfc_intr_state_check(phba))
10837 spin_lock(&phba->hbalock);
10838 if (lpfc_readl(phba->HAregaddr, &phba->ha_copy)) {
10839 spin_unlock(&phba->hbalock);
10840 return IRQ_HANDLED;
10843 if (unlikely(!phba->ha_copy)) {
10844 spin_unlock(&phba->hbalock);
10846 } else if (phba->ha_copy & HA_ERATT) {
10847 if (phba->hba_flag & HBA_ERATT_HANDLED)
10848 /* ERATT polling has handled ERATT */
10849 phba->ha_copy &= ~HA_ERATT;
10851 /* Indicate interrupt handler handles ERATT */
10852 phba->hba_flag |= HBA_ERATT_HANDLED;
10856 * If there is deferred error attention, do not check for any interrupt.
10858 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10859 spin_unlock(&phba->hbalock);
10863 /* Clear attention sources except link and error attentions */
10864 if (lpfc_readl(phba->HCregaddr, &hc_copy)) {
10865 spin_unlock(&phba->hbalock);
10866 return IRQ_HANDLED;
10868 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
10869 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
10871 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
10872 writel(hc_copy, phba->HCregaddr);
10873 readl(phba->HAregaddr); /* flush */
10874 spin_unlock(&phba->hbalock);
10877 * Invokes slow-path host attention interrupt handling as appropriate.
10880 /* status of events with mailbox and link attention */
10881 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
10883 /* status of events with ELS ring */
10884 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
10885 status2 >>= (4*LPFC_ELS_RING);
10887 if (status1 || (status2 & HA_RXMASK))
10888 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
10890 sp_irq_rc = IRQ_NONE;
10893 * Invoke fast-path host attention interrupt handling as appropriate.
10896 /* status of events with FCP ring */
10897 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
10898 status1 >>= (4*LPFC_FCP_RING);
10900 /* status of events with extra ring */
10901 if (phba->cfg_multi_ring_support == 2) {
10902 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
10903 status2 >>= (4*LPFC_EXTRA_RING);
10907 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
10908 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
10910 fp_irq_rc = IRQ_NONE;
10912 /* Return device-level interrupt handling status */
10913 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
10914 } /* lpfc_sli_intr_handler */
10917 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
10918 * @phba: pointer to lpfc hba data structure.
10920 * This routine is invoked by the worker thread to process all the pending
10921 * SLI4 FCP abort XRI events.
10923 void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba)
10925 struct lpfc_cq_event *cq_event;
10927 /* First, declare the fcp xri abort event has been handled */
10928 spin_lock_irq(&phba->hbalock);
10929 phba->hba_flag &= ~FCP_XRI_ABORT_EVENT;
10930 spin_unlock_irq(&phba->hbalock);
10931 /* Now, handle all the fcp xri abort events */
10932 while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) {
10933 /* Get the first event from the head of the event queue */
10934 spin_lock_irq(&phba->hbalock);
10935 list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
10936 cq_event, struct lpfc_cq_event, list);
10937 spin_unlock_irq(&phba->hbalock);
10938 /* Notify aborted XRI for FCP work queue */
10939 lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
10940 /* Free the event processed back to the free pool */
10941 lpfc_sli4_cq_event_release(phba, cq_event);
10946 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
10947 * @phba: pointer to lpfc hba data structure.
10949 * This routine is invoked by the worker thread to process all the pending
10950 * SLI4 els abort xri events.
10952 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
10954 struct lpfc_cq_event *cq_event;
10956 /* First, declare the els xri abort event has been handled */
10957 spin_lock_irq(&phba->hbalock);
10958 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
10959 spin_unlock_irq(&phba->hbalock);
10960 /* Now, handle all the els xri abort events */
10961 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
10962 /* Get the first event from the head of the event queue */
10963 spin_lock_irq(&phba->hbalock);
10964 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
10965 cq_event, struct lpfc_cq_event, list);
10966 spin_unlock_irq(&phba->hbalock);
10967 /* Notify aborted XRI for ELS work queue */
10968 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
10969 /* Free the event processed back to the free pool */
10970 lpfc_sli4_cq_event_release(phba, cq_event);
10975 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
10976 * @phba: pointer to lpfc hba data structure
10977 * @pIocbIn: pointer to the rspiocbq
10978 * @pIocbOut: pointer to the cmdiocbq
10979 * @wcqe: pointer to the complete wcqe
10981 * This routine transfers the fields of a command iocbq to a response iocbq
10982 * by copying all the IOCB fields from command iocbq and transferring the
10983 * completion status information from the complete wcqe.
10986 lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
10987 struct lpfc_iocbq *pIocbIn,
10988 struct lpfc_iocbq *pIocbOut,
10989 struct lpfc_wcqe_complete *wcqe)
10991 unsigned long iflags;
10993 size_t offset = offsetof(struct lpfc_iocbq, iocb);
10995 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
10996 sizeof(struct lpfc_iocbq) - offset);
10997 /* Map WCQE parameters into irspiocb parameters */
10998 status = bf_get(lpfc_wcqe_c_status, wcqe);
10999 pIocbIn->iocb.ulpStatus = (status & LPFC_IOCB_STATUS_MASK);
11000 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
11001 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
11002 pIocbIn->iocb.un.fcpi.fcpi_parm =
11003 pIocbOut->iocb.un.fcpi.fcpi_parm -
11004 wcqe->total_data_placed;
11006 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
11008 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
11009 pIocbIn->iocb.un.genreq64.bdl.bdeSize = wcqe->total_data_placed;
11012 /* Convert BG errors for completion status */
11013 if (status == CQE_STATUS_DI_ERROR) {
11014 pIocbIn->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
11016 if (bf_get(lpfc_wcqe_c_bg_edir, wcqe))
11017 pIocbIn->iocb.un.ulpWord[4] = IOERR_RX_DMA_FAILED;
11019 pIocbIn->iocb.un.ulpWord[4] = IOERR_TX_DMA_FAILED;
11021 pIocbIn->iocb.unsli3.sli3_bg.bgstat = 0;
11022 if (bf_get(lpfc_wcqe_c_bg_ge, wcqe)) /* Guard Check failed */
11023 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11024 BGS_GUARD_ERR_MASK;
11025 if (bf_get(lpfc_wcqe_c_bg_ae, wcqe)) /* App Tag Check failed */
11026 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11027 BGS_APPTAG_ERR_MASK;
11028 if (bf_get(lpfc_wcqe_c_bg_re, wcqe)) /* Ref Tag Check failed */
11029 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11030 BGS_REFTAG_ERR_MASK;
11032 /* Check to see if there was any good data before the error */
11033 if (bf_get(lpfc_wcqe_c_bg_tdpv, wcqe)) {
11034 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11035 BGS_HI_WATER_MARK_PRESENT_MASK;
11036 pIocbIn->iocb.unsli3.sli3_bg.bghm =
11037 wcqe->total_data_placed;
11041 * Set ALL the error bits to indicate we don't know what
11042 * type of error it is.
11044 if (!pIocbIn->iocb.unsli3.sli3_bg.bgstat)
11045 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11046 (BGS_REFTAG_ERR_MASK | BGS_APPTAG_ERR_MASK |
11047 BGS_GUARD_ERR_MASK);
11050 /* Pick up HBA exchange busy condition */
11051 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
11052 spin_lock_irqsave(&phba->hbalock, iflags);
11053 pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY;
11054 spin_unlock_irqrestore(&phba->hbalock, iflags);
11059 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
11060 * @phba: Pointer to HBA context object.
11061 * @wcqe: Pointer to work-queue completion queue entry.
11063 * This routine handles an ELS work-queue completion event and construct
11064 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
11065 * discovery engine to handle.
11067 * Return: Pointer to the receive IOCBQ, NULL otherwise.
11069 static struct lpfc_iocbq *
11070 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
11071 struct lpfc_iocbq *irspiocbq)
11073 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
11074 struct lpfc_iocbq *cmdiocbq;
11075 struct lpfc_wcqe_complete *wcqe;
11076 unsigned long iflags;
11078 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
11079 spin_lock_irqsave(&pring->ring_lock, iflags);
11080 pring->stats.iocb_event++;
11081 /* Look up the ELS command IOCB and create pseudo response IOCB */
11082 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
11083 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11084 spin_unlock_irqrestore(&pring->ring_lock, iflags);
11086 if (unlikely(!cmdiocbq)) {
11087 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11088 "0386 ELS complete with no corresponding "
11089 "cmdiocb: iotag (%d)\n",
11090 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11091 lpfc_sli_release_iocbq(phba, irspiocbq);
11095 /* Fake the irspiocbq and copy necessary response information */
11096 lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe);
11102 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
11103 * @phba: Pointer to HBA context object.
11104 * @cqe: Pointer to mailbox completion queue entry.
11106 * This routine process a mailbox completion queue entry with asynchrous
11109 * Return: true if work posted to worker thread, otherwise false.
11112 lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
11114 struct lpfc_cq_event *cq_event;
11115 unsigned long iflags;
11117 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11118 "0392 Async Event: word0:x%x, word1:x%x, "
11119 "word2:x%x, word3:x%x\n", mcqe->word0,
11120 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
11122 /* Allocate a new internal CQ_EVENT entry */
11123 cq_event = lpfc_sli4_cq_event_alloc(phba);
11125 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11126 "0394 Failed to allocate CQ_EVENT entry\n");
11130 /* Move the CQE into an asynchronous event entry */
11131 memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe));
11132 spin_lock_irqsave(&phba->hbalock, iflags);
11133 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
11134 /* Set the async event flag */
11135 phba->hba_flag |= ASYNC_EVENT;
11136 spin_unlock_irqrestore(&phba->hbalock, iflags);
11142 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
11143 * @phba: Pointer to HBA context object.
11144 * @cqe: Pointer to mailbox completion queue entry.
11146 * This routine process a mailbox completion queue entry with mailbox
11147 * completion event.
11149 * Return: true if work posted to worker thread, otherwise false.
11152 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
11154 uint32_t mcqe_status;
11155 MAILBOX_t *mbox, *pmbox;
11156 struct lpfc_mqe *mqe;
11157 struct lpfc_vport *vport;
11158 struct lpfc_nodelist *ndlp;
11159 struct lpfc_dmabuf *mp;
11160 unsigned long iflags;
11162 bool workposted = false;
11165 /* If not a mailbox complete MCQE, out by checking mailbox consume */
11166 if (!bf_get(lpfc_trailer_completed, mcqe))
11167 goto out_no_mqe_complete;
11169 /* Get the reference to the active mbox command */
11170 spin_lock_irqsave(&phba->hbalock, iflags);
11171 pmb = phba->sli.mbox_active;
11172 if (unlikely(!pmb)) {
11173 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
11174 "1832 No pending MBOX command to handle\n");
11175 spin_unlock_irqrestore(&phba->hbalock, iflags);
11176 goto out_no_mqe_complete;
11178 spin_unlock_irqrestore(&phba->hbalock, iflags);
11180 pmbox = (MAILBOX_t *)&pmb->u.mqe;
11182 vport = pmb->vport;
11184 /* Reset heartbeat timer */
11185 phba->last_completion_time = jiffies;
11186 del_timer(&phba->sli.mbox_tmo);
11188 /* Move mbox data to caller's mailbox region, do endian swapping */
11189 if (pmb->mbox_cmpl && mbox)
11190 lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
11193 * For mcqe errors, conditionally move a modified error code to
11194 * the mbox so that the error will not be missed.
11196 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
11197 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
11198 if (bf_get(lpfc_mqe_status, mqe) == MBX_SUCCESS)
11199 bf_set(lpfc_mqe_status, mqe,
11200 (LPFC_MBX_ERROR_RANGE | mcqe_status));
11202 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
11203 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
11204 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
11205 "MBOX dflt rpi: status:x%x rpi:x%x",
11207 pmbox->un.varWords[0], 0);
11208 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
11209 mp = (struct lpfc_dmabuf *)(pmb->context1);
11210 ndlp = (struct lpfc_nodelist *)pmb->context2;
11211 /* Reg_LOGIN of dflt RPI was successful. Now lets get
11212 * RID of the PPI using the same mbox buffer.
11214 lpfc_unreg_login(phba, vport->vpi,
11215 pmbox->un.varWords[0], pmb);
11216 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
11217 pmb->context1 = mp;
11218 pmb->context2 = ndlp;
11219 pmb->vport = vport;
11220 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
11221 if (rc != MBX_BUSY)
11222 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
11223 LOG_SLI, "0385 rc should "
11224 "have been MBX_BUSY\n");
11225 if (rc != MBX_NOT_FINISHED)
11226 goto send_current_mbox;
11229 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
11230 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
11231 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
11233 /* There is mailbox completion work to do */
11234 spin_lock_irqsave(&phba->hbalock, iflags);
11235 __lpfc_mbox_cmpl_put(phba, pmb);
11236 phba->work_ha |= HA_MBATT;
11237 spin_unlock_irqrestore(&phba->hbalock, iflags);
11241 spin_lock_irqsave(&phba->hbalock, iflags);
11242 /* Release the mailbox command posting token */
11243 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
11244 /* Setting active mailbox pointer need to be in sync to flag clear */
11245 phba->sli.mbox_active = NULL;
11246 spin_unlock_irqrestore(&phba->hbalock, iflags);
11247 /* Wake up worker thread to post the next pending mailbox command */
11248 lpfc_worker_wake_up(phba);
11249 out_no_mqe_complete:
11250 if (bf_get(lpfc_trailer_consumed, mcqe))
11251 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
11256 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
11257 * @phba: Pointer to HBA context object.
11258 * @cqe: Pointer to mailbox completion queue entry.
11260 * This routine process a mailbox completion queue entry, it invokes the
11261 * proper mailbox complete handling or asynchrous event handling routine
11262 * according to the MCQE's async bit.
11264 * Return: true if work posted to worker thread, otherwise false.
11267 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
11269 struct lpfc_mcqe mcqe;
11272 /* Copy the mailbox MCQE and convert endian order as needed */
11273 lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
11275 /* Invoke the proper event handling routine */
11276 if (!bf_get(lpfc_trailer_async, &mcqe))
11277 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
11279 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
11284 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
11285 * @phba: Pointer to HBA context object.
11286 * @cq: Pointer to associated CQ
11287 * @wcqe: Pointer to work-queue completion queue entry.
11289 * This routine handles an ELS work-queue completion event.
11291 * Return: true if work posted to worker thread, otherwise false.
11294 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11295 struct lpfc_wcqe_complete *wcqe)
11297 struct lpfc_iocbq *irspiocbq;
11298 unsigned long iflags;
11299 struct lpfc_sli_ring *pring = cq->pring;
11301 /* Get an irspiocbq for later ELS response processing use */
11302 irspiocbq = lpfc_sli_get_iocbq(phba);
11304 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11305 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
11306 "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n",
11307 pring->txq_cnt, phba->iocb_cnt,
11308 phba->sli.ring[LPFC_FCP_RING].txcmplq_cnt,
11309 phba->sli.ring[LPFC_ELS_RING].txcmplq_cnt);
11313 /* Save off the slow-path queue event for work thread to process */
11314 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
11315 spin_lock_irqsave(&phba->hbalock, iflags);
11316 list_add_tail(&irspiocbq->cq_event.list,
11317 &phba->sli4_hba.sp_queue_event);
11318 phba->hba_flag |= HBA_SP_QUEUE_EVT;
11319 spin_unlock_irqrestore(&phba->hbalock, iflags);
11325 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
11326 * @phba: Pointer to HBA context object.
11327 * @wcqe: Pointer to work-queue completion queue entry.
11329 * This routine handles slow-path WQ entry comsumed event by invoking the
11330 * proper WQ release routine to the slow-path WQ.
11333 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
11334 struct lpfc_wcqe_release *wcqe)
11336 /* sanity check on queue memory */
11337 if (unlikely(!phba->sli4_hba.els_wq))
11339 /* Check for the slow-path ELS work queue */
11340 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
11341 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
11342 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
11344 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11345 "2579 Slow-path wqe consume event carries "
11346 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
11347 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
11348 phba->sli4_hba.els_wq->queue_id);
11352 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
11353 * @phba: Pointer to HBA context object.
11354 * @cq: Pointer to a WQ completion queue.
11355 * @wcqe: Pointer to work-queue completion queue entry.
11357 * This routine handles an XRI abort event.
11359 * Return: true if work posted to worker thread, otherwise false.
11362 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
11363 struct lpfc_queue *cq,
11364 struct sli4_wcqe_xri_aborted *wcqe)
11366 bool workposted = false;
11367 struct lpfc_cq_event *cq_event;
11368 unsigned long iflags;
11370 /* Allocate a new internal CQ_EVENT entry */
11371 cq_event = lpfc_sli4_cq_event_alloc(phba);
11373 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11374 "0602 Failed to allocate CQ_EVENT entry\n");
11378 /* Move the CQE into the proper xri abort event list */
11379 memcpy(&cq_event->cqe, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
11380 switch (cq->subtype) {
11382 spin_lock_irqsave(&phba->hbalock, iflags);
11383 list_add_tail(&cq_event->list,
11384 &phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
11385 /* Set the fcp xri abort event flag */
11386 phba->hba_flag |= FCP_XRI_ABORT_EVENT;
11387 spin_unlock_irqrestore(&phba->hbalock, iflags);
11391 spin_lock_irqsave(&phba->hbalock, iflags);
11392 list_add_tail(&cq_event->list,
11393 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
11394 /* Set the els xri abort event flag */
11395 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
11396 spin_unlock_irqrestore(&phba->hbalock, iflags);
11400 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11401 "0603 Invalid work queue CQE subtype (x%x)\n",
11403 workposted = false;
11410 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
11411 * @phba: Pointer to HBA context object.
11412 * @rcqe: Pointer to receive-queue completion queue entry.
11414 * This routine process a receive-queue completion queue entry.
11416 * Return: true if work posted to worker thread, otherwise false.
11419 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
11421 bool workposted = false;
11422 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
11423 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
11424 struct hbq_dmabuf *dma_buf;
11425 uint32_t status, rq_id;
11426 unsigned long iflags;
11428 /* sanity check on queue memory */
11429 if (unlikely(!hrq) || unlikely(!drq))
11432 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
11433 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
11435 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
11436 if (rq_id != hrq->queue_id)
11439 status = bf_get(lpfc_rcqe_status, rcqe);
11441 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
11442 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11443 "2537 Receive Frame Truncated!!\n");
11444 hrq->RQ_buf_trunc++;
11445 case FC_STATUS_RQ_SUCCESS:
11446 lpfc_sli4_rq_release(hrq, drq);
11447 spin_lock_irqsave(&phba->hbalock, iflags);
11448 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
11450 hrq->RQ_no_buf_found++;
11451 spin_unlock_irqrestore(&phba->hbalock, iflags);
11455 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
11456 /* save off the frame for the word thread to process */
11457 list_add_tail(&dma_buf->cq_event.list,
11458 &phba->sli4_hba.sp_queue_event);
11459 /* Frame received */
11460 phba->hba_flag |= HBA_SP_QUEUE_EVT;
11461 spin_unlock_irqrestore(&phba->hbalock, iflags);
11464 case FC_STATUS_INSUFF_BUF_NEED_BUF:
11465 case FC_STATUS_INSUFF_BUF_FRM_DISC:
11466 hrq->RQ_no_posted_buf++;
11467 /* Post more buffers if possible */
11468 spin_lock_irqsave(&phba->hbalock, iflags);
11469 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
11470 spin_unlock_irqrestore(&phba->hbalock, iflags);
11479 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
11480 * @phba: Pointer to HBA context object.
11481 * @cq: Pointer to the completion queue.
11482 * @wcqe: Pointer to a completion queue entry.
11484 * This routine process a slow-path work-queue or receive queue completion queue
11487 * Return: true if work posted to worker thread, otherwise false.
11490 lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11491 struct lpfc_cqe *cqe)
11493 struct lpfc_cqe cqevt;
11494 bool workposted = false;
11496 /* Copy the work queue CQE and convert endian order if needed */
11497 lpfc_sli_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
11499 /* Check and process for different type of WCQE and dispatch */
11500 switch (bf_get(lpfc_cqe_code, &cqevt)) {
11501 case CQE_CODE_COMPL_WQE:
11502 /* Process the WQ/RQ complete event */
11503 phba->last_completion_time = jiffies;
11504 workposted = lpfc_sli4_sp_handle_els_wcqe(phba, cq,
11505 (struct lpfc_wcqe_complete *)&cqevt);
11507 case CQE_CODE_RELEASE_WQE:
11508 /* Process the WQ release event */
11509 lpfc_sli4_sp_handle_rel_wcqe(phba,
11510 (struct lpfc_wcqe_release *)&cqevt);
11512 case CQE_CODE_XRI_ABORTED:
11513 /* Process the WQ XRI abort event */
11514 phba->last_completion_time = jiffies;
11515 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
11516 (struct sli4_wcqe_xri_aborted *)&cqevt);
11518 case CQE_CODE_RECEIVE:
11519 case CQE_CODE_RECEIVE_V1:
11520 /* Process the RQ event */
11521 phba->last_completion_time = jiffies;
11522 workposted = lpfc_sli4_sp_handle_rcqe(phba,
11523 (struct lpfc_rcqe *)&cqevt);
11526 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11527 "0388 Not a valid WCQE code: x%x\n",
11528 bf_get(lpfc_cqe_code, &cqevt));
11535 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
11536 * @phba: Pointer to HBA context object.
11537 * @eqe: Pointer to fast-path event queue entry.
11539 * This routine process a event queue entry from the slow-path event queue.
11540 * It will check the MajorCode and MinorCode to determine this is for a
11541 * completion event on a completion queue, if not, an error shall be logged
11542 * and just return. Otherwise, it will get to the corresponding completion
11543 * queue and process all the entries on that completion queue, rearm the
11544 * completion queue, and then return.
11548 lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
11549 struct lpfc_queue *speq)
11551 struct lpfc_queue *cq = NULL, *childq;
11552 struct lpfc_cqe *cqe;
11553 bool workposted = false;
11557 /* Get the reference to the corresponding CQ */
11558 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
11560 list_for_each_entry(childq, &speq->child_list, list) {
11561 if (childq->queue_id == cqid) {
11566 if (unlikely(!cq)) {
11567 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
11568 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11569 "0365 Slow-path CQ identifier "
11570 "(%d) does not exist\n", cqid);
11574 /* Process all the entries to the CQ */
11575 switch (cq->type) {
11577 while ((cqe = lpfc_sli4_cq_get(cq))) {
11578 workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe);
11579 if (!(++ecount % cq->entry_repost))
11580 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
11585 while ((cqe = lpfc_sli4_cq_get(cq))) {
11586 if (cq->subtype == LPFC_FCP)
11587 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq,
11590 workposted |= lpfc_sli4_sp_handle_cqe(phba, cq,
11592 if (!(++ecount % cq->entry_repost))
11593 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
11596 /* Track the max number of CQEs processed in 1 EQ */
11597 if (ecount > cq->CQ_max_cqe)
11598 cq->CQ_max_cqe = ecount;
11601 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11602 "0370 Invalid completion queue type (%d)\n",
11607 /* Catch the no cq entry condition, log an error */
11608 if (unlikely(ecount == 0))
11609 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11610 "0371 No entry from the CQ: identifier "
11611 "(x%x), type (%d)\n", cq->queue_id, cq->type);
11613 /* In any case, flash and re-arm the RCQ */
11614 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
11616 /* wake up worker thread if there are works to be done */
11618 lpfc_worker_wake_up(phba);
11622 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
11623 * @phba: Pointer to HBA context object.
11624 * @cq: Pointer to associated CQ
11625 * @wcqe: Pointer to work-queue completion queue entry.
11627 * This routine process a fast-path work queue completion entry from fast-path
11628 * event queue for FCP command response completion.
11631 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11632 struct lpfc_wcqe_complete *wcqe)
11634 struct lpfc_sli_ring *pring = cq->pring;
11635 struct lpfc_iocbq *cmdiocbq;
11636 struct lpfc_iocbq irspiocbq;
11637 unsigned long iflags;
11639 /* Check for response status */
11640 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
11641 /* If resource errors reported from HBA, reduce queue
11642 * depth of the SCSI device.
11644 if (((bf_get(lpfc_wcqe_c_status, wcqe) ==
11645 IOSTAT_LOCAL_REJECT)) &&
11646 ((wcqe->parameter & IOERR_PARAM_MASK) ==
11647 IOERR_NO_RESOURCES))
11648 phba->lpfc_rampdown_queue_depth(phba);
11650 /* Log the error status */
11651 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11652 "0373 FCP complete error: status=x%x, "
11653 "hw_status=x%x, total_data_specified=%d, "
11654 "parameter=x%x, word3=x%x\n",
11655 bf_get(lpfc_wcqe_c_status, wcqe),
11656 bf_get(lpfc_wcqe_c_hw_status, wcqe),
11657 wcqe->total_data_placed, wcqe->parameter,
11661 /* Look up the FCP command IOCB and create pseudo response IOCB */
11662 spin_lock_irqsave(&pring->ring_lock, iflags);
11663 pring->stats.iocb_event++;
11664 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
11665 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11666 spin_unlock_irqrestore(&pring->ring_lock, iflags);
11667 if (unlikely(!cmdiocbq)) {
11668 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11669 "0374 FCP complete with no corresponding "
11670 "cmdiocb: iotag (%d)\n",
11671 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11674 if (unlikely(!cmdiocbq->iocb_cmpl)) {
11675 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11676 "0375 FCP cmdiocb not callback function "
11678 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11682 /* Fake the irspiocb and copy necessary response information */
11683 lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
11685 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
11686 spin_lock_irqsave(&phba->hbalock, iflags);
11687 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
11688 spin_unlock_irqrestore(&phba->hbalock, iflags);
11691 /* Pass the cmd_iocb and the rsp state to the upper layer */
11692 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
11696 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
11697 * @phba: Pointer to HBA context object.
11698 * @cq: Pointer to completion queue.
11699 * @wcqe: Pointer to work-queue completion queue entry.
11701 * This routine handles an fast-path WQ entry comsumed event by invoking the
11702 * proper WQ release routine to the slow-path WQ.
11705 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11706 struct lpfc_wcqe_release *wcqe)
11708 struct lpfc_queue *childwq;
11709 bool wqid_matched = false;
11712 /* Check for fast-path FCP work queue release */
11713 fcp_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
11714 list_for_each_entry(childwq, &cq->child_list, list) {
11715 if (childwq->queue_id == fcp_wqid) {
11716 lpfc_sli4_wq_release(childwq,
11717 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
11718 wqid_matched = true;
11722 /* Report warning log message if no match found */
11723 if (wqid_matched != true)
11724 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11725 "2580 Fast-path wqe consume event carries "
11726 "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid);
11730 * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry
11731 * @cq: Pointer to the completion queue.
11732 * @eqe: Pointer to fast-path completion queue entry.
11734 * This routine process a fast-path work queue completion entry from fast-path
11735 * event queue for FCP command response completion.
11738 lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11739 struct lpfc_cqe *cqe)
11741 struct lpfc_wcqe_release wcqe;
11742 bool workposted = false;
11744 /* Copy the work queue CQE and convert endian order if needed */
11745 lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
11747 /* Check and process for different type of WCQE and dispatch */
11748 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
11749 case CQE_CODE_COMPL_WQE:
11751 /* Process the WQ complete event */
11752 phba->last_completion_time = jiffies;
11753 lpfc_sli4_fp_handle_fcp_wcqe(phba, cq,
11754 (struct lpfc_wcqe_complete *)&wcqe);
11756 case CQE_CODE_RELEASE_WQE:
11757 cq->CQ_release_wqe++;
11758 /* Process the WQ release event */
11759 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
11760 (struct lpfc_wcqe_release *)&wcqe);
11762 case CQE_CODE_XRI_ABORTED:
11763 cq->CQ_xri_aborted++;
11764 /* Process the WQ XRI abort event */
11765 phba->last_completion_time = jiffies;
11766 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
11767 (struct sli4_wcqe_xri_aborted *)&wcqe);
11770 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11771 "0144 Not a valid WCQE code: x%x\n",
11772 bf_get(lpfc_wcqe_c_code, &wcqe));
11779 * lpfc_sli4_hba_handle_eqe - Process a fast-path event queue entry
11780 * @phba: Pointer to HBA context object.
11781 * @eqe: Pointer to fast-path event queue entry.
11783 * This routine process a event queue entry from the fast-path event queue.
11784 * It will check the MajorCode and MinorCode to determine this is for a
11785 * completion event on a completion queue, if not, an error shall be logged
11786 * and just return. Otherwise, it will get to the corresponding completion
11787 * queue and process all the entries on the completion queue, rearm the
11788 * completion queue, and then return.
11791 lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
11794 struct lpfc_queue *cq;
11795 struct lpfc_cqe *cqe;
11796 bool workposted = false;
11800 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
11801 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11802 "0366 Not a valid completion "
11803 "event: majorcode=x%x, minorcode=x%x\n",
11804 bf_get_le32(lpfc_eqe_major_code, eqe),
11805 bf_get_le32(lpfc_eqe_minor_code, eqe));
11809 /* Get the reference to the corresponding CQ */
11810 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
11812 /* Check if this is a Slow path event */
11813 if (unlikely(cqid != phba->sli4_hba.fcp_cq_map[qidx])) {
11814 lpfc_sli4_sp_handle_eqe(phba, eqe,
11815 phba->sli4_hba.hba_eq[qidx]);
11819 if (unlikely(!phba->sli4_hba.fcp_cq)) {
11820 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11821 "3146 Fast-path completion queues "
11822 "does not exist\n");
11825 cq = phba->sli4_hba.fcp_cq[qidx];
11826 if (unlikely(!cq)) {
11827 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
11828 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11829 "0367 Fast-path completion queue "
11830 "(%d) does not exist\n", qidx);
11834 if (unlikely(cqid != cq->queue_id)) {
11835 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11836 "0368 Miss-matched fast-path completion "
11837 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
11838 cqid, cq->queue_id);
11842 /* Process all the entries to the CQ */
11843 while ((cqe = lpfc_sli4_cq_get(cq))) {
11844 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe);
11845 if (!(++ecount % cq->entry_repost))
11846 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
11849 /* Track the max number of CQEs processed in 1 EQ */
11850 if (ecount > cq->CQ_max_cqe)
11851 cq->CQ_max_cqe = ecount;
11853 /* Catch the no cq entry condition */
11854 if (unlikely(ecount == 0))
11855 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11856 "0369 No entry from fast-path completion "
11857 "queue fcpcqid=%d\n", cq->queue_id);
11859 /* In any case, flash and re-arm the CQ */
11860 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
11862 /* wake up worker thread if there are works to be done */
11864 lpfc_worker_wake_up(phba);
11868 lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
11870 struct lpfc_eqe *eqe;
11872 /* walk all the EQ entries and drop on the floor */
11873 while ((eqe = lpfc_sli4_eq_get(eq)))
11876 /* Clear and re-arm the EQ */
11877 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
11881 * lpfc_sli4_hba_intr_handler - HBA interrupt handler to SLI-4 device
11882 * @irq: Interrupt number.
11883 * @dev_id: The device context pointer.
11885 * This function is directly called from the PCI layer as an interrupt
11886 * service routine when device with SLI-4 interface spec is enabled with
11887 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
11888 * ring event in the HBA. However, when the device is enabled with either
11889 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
11890 * device-level interrupt handler. When the PCI slot is in error recovery
11891 * or the HBA is undergoing initialization, the interrupt handler will not
11892 * process the interrupt. The SCSI FCP fast-path ring event are handled in
11893 * the intrrupt context. This function is called without any lock held.
11894 * It gets the hbalock to access and update SLI data structures. Note that,
11895 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
11896 * equal to that of FCP CQ index.
11898 * The link attention and ELS ring attention events are handled
11899 * by the worker thread. The interrupt handler signals the worker thread
11900 * and returns for these events. This function is called without any lock
11901 * held. It gets the hbalock to access and update SLI data structures.
11903 * This function returns IRQ_HANDLED when interrupt is handled else it
11904 * returns IRQ_NONE.
11907 lpfc_sli4_hba_intr_handler(int irq, void *dev_id)
11909 struct lpfc_hba *phba;
11910 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
11911 struct lpfc_queue *fpeq;
11912 struct lpfc_eqe *eqe;
11913 unsigned long iflag;
11917 /* Get the driver's phba structure from the dev_id */
11918 fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id;
11919 phba = fcp_eq_hdl->phba;
11920 fcp_eqidx = fcp_eq_hdl->idx;
11922 if (unlikely(!phba))
11924 if (unlikely(!phba->sli4_hba.hba_eq))
11927 /* Get to the EQ struct associated with this vector */
11928 fpeq = phba->sli4_hba.hba_eq[fcp_eqidx];
11929 if (unlikely(!fpeq))
11932 if (lpfc_fcp_look_ahead) {
11933 if (atomic_dec_and_test(&fcp_eq_hdl->fcp_eq_in_use))
11934 lpfc_sli4_eq_clr_intr(fpeq);
11936 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
11941 /* Check device state for handling interrupt */
11942 if (unlikely(lpfc_intr_state_check(phba))) {
11943 fpeq->EQ_badstate++;
11944 /* Check again for link_state with lock held */
11945 spin_lock_irqsave(&phba->hbalock, iflag);
11946 if (phba->link_state < LPFC_LINK_DOWN)
11947 /* Flush, clear interrupt, and rearm the EQ */
11948 lpfc_sli4_eq_flush(phba, fpeq);
11949 spin_unlock_irqrestore(&phba->hbalock, iflag);
11950 if (lpfc_fcp_look_ahead)
11951 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
11956 * Process all the event on FCP fast-path EQ
11958 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
11959 lpfc_sli4_hba_handle_eqe(phba, eqe, fcp_eqidx);
11960 if (!(++ecount % fpeq->entry_repost))
11961 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM);
11962 fpeq->EQ_processed++;
11965 /* Track the max number of EQEs processed in 1 intr */
11966 if (ecount > fpeq->EQ_max_eqe)
11967 fpeq->EQ_max_eqe = ecount;
11969 /* Always clear and re-arm the fast-path EQ */
11970 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
11972 if (unlikely(ecount == 0)) {
11973 fpeq->EQ_no_entry++;
11975 if (lpfc_fcp_look_ahead) {
11976 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
11980 if (phba->intr_type == MSIX)
11981 /* MSI-X treated interrupt served as no EQ share INT */
11982 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11983 "0358 MSI-X interrupt with no EQE\n");
11985 /* Non MSI-X treated on interrupt as EQ share INT */
11989 if (lpfc_fcp_look_ahead)
11990 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
11991 return IRQ_HANDLED;
11992 } /* lpfc_sli4_fp_intr_handler */
11995 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
11996 * @irq: Interrupt number.
11997 * @dev_id: The device context pointer.
11999 * This function is the device-level interrupt handler to device with SLI-4
12000 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
12001 * interrupt mode is enabled and there is an event in the HBA which requires
12002 * driver attention. This function invokes the slow-path interrupt attention
12003 * handling function and fast-path interrupt attention handling function in
12004 * turn to process the relevant HBA attention events. This function is called
12005 * without any lock held. It gets the hbalock to access and update SLI data
12008 * This function returns IRQ_HANDLED when interrupt is handled, else it
12009 * returns IRQ_NONE.
12012 lpfc_sli4_intr_handler(int irq, void *dev_id)
12014 struct lpfc_hba *phba;
12015 irqreturn_t hba_irq_rc;
12016 bool hba_handled = false;
12019 /* Get the driver's phba structure from the dev_id */
12020 phba = (struct lpfc_hba *)dev_id;
12022 if (unlikely(!phba))
12026 * Invoke fast-path host attention interrupt handling as appropriate.
12028 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
12029 hba_irq_rc = lpfc_sli4_hba_intr_handler(irq,
12030 &phba->sli4_hba.fcp_eq_hdl[fcp_eqidx]);
12031 if (hba_irq_rc == IRQ_HANDLED)
12032 hba_handled |= true;
12035 return (hba_handled == true) ? IRQ_HANDLED : IRQ_NONE;
12036 } /* lpfc_sli4_intr_handler */
12039 * lpfc_sli4_queue_free - free a queue structure and associated memory
12040 * @queue: The queue structure to free.
12042 * This function frees a queue structure and the DMAable memory used for
12043 * the host resident queue. This function must be called after destroying the
12044 * queue on the HBA.
12047 lpfc_sli4_queue_free(struct lpfc_queue *queue)
12049 struct lpfc_dmabuf *dmabuf;
12054 while (!list_empty(&queue->page_list)) {
12055 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
12057 dma_free_coherent(&queue->phba->pcidev->dev, SLI4_PAGE_SIZE,
12058 dmabuf->virt, dmabuf->phys);
12066 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
12067 * @phba: The HBA that this queue is being created on.
12068 * @entry_size: The size of each queue entry for this queue.
12069 * @entry count: The number of entries that this queue will handle.
12071 * This function allocates a queue structure and the DMAable memory used for
12072 * the host resident queue. This function must be called before creating the
12073 * queue on the HBA.
12075 struct lpfc_queue *
12076 lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size,
12077 uint32_t entry_count)
12079 struct lpfc_queue *queue;
12080 struct lpfc_dmabuf *dmabuf;
12081 int x, total_qe_count;
12083 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12085 if (!phba->sli4_hba.pc_sli4_params.supported)
12086 hw_page_size = SLI4_PAGE_SIZE;
12088 queue = kzalloc(sizeof(struct lpfc_queue) +
12089 (sizeof(union sli4_qe) * entry_count), GFP_KERNEL);
12092 queue->page_count = (ALIGN(entry_size * entry_count,
12093 hw_page_size))/hw_page_size;
12094 INIT_LIST_HEAD(&queue->list);
12095 INIT_LIST_HEAD(&queue->page_list);
12096 INIT_LIST_HEAD(&queue->child_list);
12097 for (x = 0, total_qe_count = 0; x < queue->page_count; x++) {
12098 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
12101 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
12102 hw_page_size, &dmabuf->phys,
12104 if (!dmabuf->virt) {
12108 memset(dmabuf->virt, 0, hw_page_size);
12109 dmabuf->buffer_tag = x;
12110 list_add_tail(&dmabuf->list, &queue->page_list);
12111 /* initialize queue's entry array */
12112 dma_pointer = dmabuf->virt;
12113 for (; total_qe_count < entry_count &&
12114 dma_pointer < (hw_page_size + dmabuf->virt);
12115 total_qe_count++, dma_pointer += entry_size) {
12116 queue->qe[total_qe_count].address = dma_pointer;
12119 queue->entry_size = entry_size;
12120 queue->entry_count = entry_count;
12123 * entry_repost is calculated based on the number of entries in the
12124 * queue. This works out except for RQs. If buffers are NOT initially
12125 * posted for every RQE, entry_repost should be adjusted accordingly.
12127 queue->entry_repost = (entry_count >> 3);
12128 if (queue->entry_repost < LPFC_QUEUE_MIN_REPOST)
12129 queue->entry_repost = LPFC_QUEUE_MIN_REPOST;
12130 queue->phba = phba;
12134 lpfc_sli4_queue_free(queue);
12139 * lpfc_dual_chute_pci_bar_map - Map pci base address register to host memory
12140 * @phba: HBA structure that indicates port to create a queue on.
12141 * @pci_barset: PCI BAR set flag.
12143 * This function shall perform iomap of the specified PCI BAR address to host
12144 * memory address if not already done so and return it. The returned host
12145 * memory address can be NULL.
12147 static void __iomem *
12148 lpfc_dual_chute_pci_bar_map(struct lpfc_hba *phba, uint16_t pci_barset)
12150 struct pci_dev *pdev;
12151 unsigned long bar_map, bar_map_len;
12156 pdev = phba->pcidev;
12158 switch (pci_barset) {
12159 case WQ_PCI_BAR_0_AND_1:
12160 if (!phba->pci_bar0_memmap_p) {
12161 bar_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
12162 bar_map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
12163 phba->pci_bar0_memmap_p = ioremap(bar_map, bar_map_len);
12165 return phba->pci_bar0_memmap_p;
12166 case WQ_PCI_BAR_2_AND_3:
12167 if (!phba->pci_bar2_memmap_p) {
12168 bar_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
12169 bar_map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
12170 phba->pci_bar2_memmap_p = ioremap(bar_map, bar_map_len);
12172 return phba->pci_bar2_memmap_p;
12173 case WQ_PCI_BAR_4_AND_5:
12174 if (!phba->pci_bar4_memmap_p) {
12175 bar_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
12176 bar_map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
12177 phba->pci_bar4_memmap_p = ioremap(bar_map, bar_map_len);
12179 return phba->pci_bar4_memmap_p;
12187 * lpfc_modify_fcp_eq_delay - Modify Delay Multiplier on FCP EQs
12188 * @phba: HBA structure that indicates port to create a queue on.
12189 * @startq: The starting FCP EQ to modify
12191 * This function sends an MODIFY_EQ_DELAY mailbox command to the HBA.
12193 * The @phba struct is used to send mailbox command to HBA. The @startq
12194 * is used to get the starting FCP EQ to change.
12195 * This function is asynchronous and will wait for the mailbox
12196 * command to finish before continuing.
12198 * On success this function will return a zero. If unable to allocate enough
12199 * memory this function will return -ENOMEM. If the queue create mailbox command
12200 * fails this function will return -ENXIO.
12203 lpfc_modify_fcp_eq_delay(struct lpfc_hba *phba, uint16_t startq)
12205 struct lpfc_mbx_modify_eq_delay *eq_delay;
12206 LPFC_MBOXQ_t *mbox;
12207 struct lpfc_queue *eq;
12208 int cnt, rc, length, status = 0;
12209 uint32_t shdr_status, shdr_add_status;
12212 union lpfc_sli4_cfg_shdr *shdr;
12215 if (startq >= phba->cfg_fcp_io_channel)
12218 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12221 length = (sizeof(struct lpfc_mbx_modify_eq_delay) -
12222 sizeof(struct lpfc_sli4_cfg_mhdr));
12223 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12224 LPFC_MBOX_OPCODE_MODIFY_EQ_DELAY,
12225 length, LPFC_SLI4_MBX_EMBED);
12226 eq_delay = &mbox->u.mqe.un.eq_delay;
12228 /* Calculate delay multiper from maximum interrupt per second */
12229 result = phba->cfg_fcp_imax / phba->cfg_fcp_io_channel;
12230 if (result > LPFC_DMULT_CONST)
12233 dmult = LPFC_DMULT_CONST/result - 1;
12236 for (fcp_eqidx = startq; fcp_eqidx < phba->cfg_fcp_io_channel;
12238 eq = phba->sli4_hba.hba_eq[fcp_eqidx];
12241 eq_delay->u.request.eq[cnt].eq_id = eq->queue_id;
12242 eq_delay->u.request.eq[cnt].phase = 0;
12243 eq_delay->u.request.eq[cnt].delay_multi = dmult;
12245 if (cnt >= LPFC_MAX_EQ_DELAY)
12248 eq_delay->u.request.num_eq = cnt;
12250 mbox->vport = phba->pport;
12251 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12252 mbox->context1 = NULL;
12253 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12254 shdr = (union lpfc_sli4_cfg_shdr *) &eq_delay->header.cfg_shdr;
12255 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12256 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12257 if (shdr_status || shdr_add_status || rc) {
12258 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12259 "2512 MODIFY_EQ_DELAY mailbox failed with "
12260 "status x%x add_status x%x, mbx status x%x\n",
12261 shdr_status, shdr_add_status, rc);
12264 mempool_free(mbox, phba->mbox_mem_pool);
12269 * lpfc_eq_create - Create an Event Queue on the HBA
12270 * @phba: HBA structure that indicates port to create a queue on.
12271 * @eq: The queue structure to use to create the event queue.
12272 * @imax: The maximum interrupt per second limit.
12274 * This function creates an event queue, as detailed in @eq, on a port,
12275 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
12277 * The @phba struct is used to send mailbox command to HBA. The @eq struct
12278 * is used to get the entry count and entry size that are necessary to
12279 * determine the number of pages to allocate and use for this queue. This
12280 * function will send the EQ_CREATE mailbox command to the HBA to setup the
12281 * event queue. This function is asynchronous and will wait for the mailbox
12282 * command to finish before continuing.
12284 * On success this function will return a zero. If unable to allocate enough
12285 * memory this function will return -ENOMEM. If the queue create mailbox command
12286 * fails this function will return -ENXIO.
12289 lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint32_t imax)
12291 struct lpfc_mbx_eq_create *eq_create;
12292 LPFC_MBOXQ_t *mbox;
12293 int rc, length, status = 0;
12294 struct lpfc_dmabuf *dmabuf;
12295 uint32_t shdr_status, shdr_add_status;
12296 union lpfc_sli4_cfg_shdr *shdr;
12298 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12300 /* sanity check on queue memory */
12303 if (!phba->sli4_hba.pc_sli4_params.supported)
12304 hw_page_size = SLI4_PAGE_SIZE;
12306 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12309 length = (sizeof(struct lpfc_mbx_eq_create) -
12310 sizeof(struct lpfc_sli4_cfg_mhdr));
12311 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12312 LPFC_MBOX_OPCODE_EQ_CREATE,
12313 length, LPFC_SLI4_MBX_EMBED);
12314 eq_create = &mbox->u.mqe.un.eq_create;
12315 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
12317 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
12319 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
12320 /* Calculate delay multiper from maximum interrupt per second */
12321 if (imax > LPFC_DMULT_CONST)
12324 dmult = LPFC_DMULT_CONST/imax - 1;
12325 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
12327 switch (eq->entry_count) {
12329 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12330 "0360 Unsupported EQ count. (%d)\n",
12332 if (eq->entry_count < 256)
12334 /* otherwise default to smallest count (drop through) */
12336 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12340 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12344 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12348 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12352 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12356 list_for_each_entry(dmabuf, &eq->page_list, list) {
12357 memset(dmabuf->virt, 0, hw_page_size);
12358 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
12359 putPaddrLow(dmabuf->phys);
12360 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
12361 putPaddrHigh(dmabuf->phys);
12363 mbox->vport = phba->pport;
12364 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12365 mbox->context1 = NULL;
12366 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12367 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
12368 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12369 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12370 if (shdr_status || shdr_add_status || rc) {
12371 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12372 "2500 EQ_CREATE mailbox failed with "
12373 "status x%x add_status x%x, mbx status x%x\n",
12374 shdr_status, shdr_add_status, rc);
12377 eq->type = LPFC_EQ;
12378 eq->subtype = LPFC_NONE;
12379 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
12380 if (eq->queue_id == 0xFFFF)
12382 eq->host_index = 0;
12385 mempool_free(mbox, phba->mbox_mem_pool);
12390 * lpfc_cq_create - Create a Completion Queue on the HBA
12391 * @phba: HBA structure that indicates port to create a queue on.
12392 * @cq: The queue structure to use to create the completion queue.
12393 * @eq: The event queue to bind this completion queue to.
12395 * This function creates a completion queue, as detailed in @wq, on a port,
12396 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
12398 * The @phba struct is used to send mailbox command to HBA. The @cq struct
12399 * is used to get the entry count and entry size that are necessary to
12400 * determine the number of pages to allocate and use for this queue. The @eq
12401 * is used to indicate which event queue to bind this completion queue to. This
12402 * function will send the CQ_CREATE mailbox command to the HBA to setup the
12403 * completion queue. This function is asynchronous and will wait for the mailbox
12404 * command to finish before continuing.
12406 * On success this function will return a zero. If unable to allocate enough
12407 * memory this function will return -ENOMEM. If the queue create mailbox command
12408 * fails this function will return -ENXIO.
12411 lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
12412 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
12414 struct lpfc_mbx_cq_create *cq_create;
12415 struct lpfc_dmabuf *dmabuf;
12416 LPFC_MBOXQ_t *mbox;
12417 int rc, length, status = 0;
12418 uint32_t shdr_status, shdr_add_status;
12419 union lpfc_sli4_cfg_shdr *shdr;
12420 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12422 /* sanity check on queue memory */
12425 if (!phba->sli4_hba.pc_sli4_params.supported)
12426 hw_page_size = SLI4_PAGE_SIZE;
12428 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12431 length = (sizeof(struct lpfc_mbx_cq_create) -
12432 sizeof(struct lpfc_sli4_cfg_mhdr));
12433 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12434 LPFC_MBOX_OPCODE_CQ_CREATE,
12435 length, LPFC_SLI4_MBX_EMBED);
12436 cq_create = &mbox->u.mqe.un.cq_create;
12437 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
12438 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
12440 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
12441 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
12442 bf_set(lpfc_mbox_hdr_version, &shdr->request,
12443 phba->sli4_hba.pc_sli4_params.cqv);
12444 if (phba->sli4_hba.pc_sli4_params.cqv == LPFC_Q_CREATE_VERSION_2) {
12445 /* FW only supports 1. Should be PAGE_SIZE/SLI4_PAGE_SIZE */
12446 bf_set(lpfc_mbx_cq_create_page_size, &cq_create->u.request, 1);
12447 bf_set(lpfc_cq_eq_id_2, &cq_create->u.request.context,
12450 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context,
12453 switch (cq->entry_count) {
12455 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12456 "0361 Unsupported CQ count. (%d)\n",
12458 if (cq->entry_count < 256) {
12462 /* otherwise default to smallest count (drop through) */
12464 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
12468 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
12472 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
12476 list_for_each_entry(dmabuf, &cq->page_list, list) {
12477 memset(dmabuf->virt, 0, hw_page_size);
12478 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
12479 putPaddrLow(dmabuf->phys);
12480 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
12481 putPaddrHigh(dmabuf->phys);
12483 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12485 /* The IOCTL status is embedded in the mailbox subheader. */
12486 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12487 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12488 if (shdr_status || shdr_add_status || rc) {
12489 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12490 "2501 CQ_CREATE mailbox failed with "
12491 "status x%x add_status x%x, mbx status x%x\n",
12492 shdr_status, shdr_add_status, rc);
12496 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
12497 if (cq->queue_id == 0xFFFF) {
12501 /* link the cq onto the parent eq child list */
12502 list_add_tail(&cq->list, &eq->child_list);
12503 /* Set up completion queue's type and subtype */
12505 cq->subtype = subtype;
12506 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
12507 cq->assoc_qid = eq->queue_id;
12508 cq->host_index = 0;
12512 mempool_free(mbox, phba->mbox_mem_pool);
12517 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
12518 * @phba: HBA structure that indicates port to create a queue on.
12519 * @mq: The queue structure to use to create the mailbox queue.
12520 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
12521 * @cq: The completion queue to associate with this cq.
12523 * This function provides failback (fb) functionality when the
12524 * mq_create_ext fails on older FW generations. It's purpose is identical
12525 * to mq_create_ext otherwise.
12527 * This routine cannot fail as all attributes were previously accessed and
12528 * initialized in mq_create_ext.
12531 lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq,
12532 LPFC_MBOXQ_t *mbox, struct lpfc_queue *cq)
12534 struct lpfc_mbx_mq_create *mq_create;
12535 struct lpfc_dmabuf *dmabuf;
12538 length = (sizeof(struct lpfc_mbx_mq_create) -
12539 sizeof(struct lpfc_sli4_cfg_mhdr));
12540 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12541 LPFC_MBOX_OPCODE_MQ_CREATE,
12542 length, LPFC_SLI4_MBX_EMBED);
12543 mq_create = &mbox->u.mqe.un.mq_create;
12544 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
12546 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
12548 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
12549 switch (mq->entry_count) {
12551 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
12552 LPFC_MQ_RING_SIZE_16);
12555 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
12556 LPFC_MQ_RING_SIZE_32);
12559 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
12560 LPFC_MQ_RING_SIZE_64);
12563 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
12564 LPFC_MQ_RING_SIZE_128);
12567 list_for_each_entry(dmabuf, &mq->page_list, list) {
12568 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
12569 putPaddrLow(dmabuf->phys);
12570 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
12571 putPaddrHigh(dmabuf->phys);
12576 * lpfc_mq_create - Create a mailbox Queue on the HBA
12577 * @phba: HBA structure that indicates port to create a queue on.
12578 * @mq: The queue structure to use to create the mailbox queue.
12579 * @cq: The completion queue to associate with this cq.
12580 * @subtype: The queue's subtype.
12582 * This function creates a mailbox queue, as detailed in @mq, on a port,
12583 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
12585 * The @phba struct is used to send mailbox command to HBA. The @cq struct
12586 * is used to get the entry count and entry size that are necessary to
12587 * determine the number of pages to allocate and use for this queue. This
12588 * function will send the MQ_CREATE mailbox command to the HBA to setup the
12589 * mailbox queue. This function is asynchronous and will wait for the mailbox
12590 * command to finish before continuing.
12592 * On success this function will return a zero. If unable to allocate enough
12593 * memory this function will return -ENOMEM. If the queue create mailbox command
12594 * fails this function will return -ENXIO.
12597 lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
12598 struct lpfc_queue *cq, uint32_t subtype)
12600 struct lpfc_mbx_mq_create *mq_create;
12601 struct lpfc_mbx_mq_create_ext *mq_create_ext;
12602 struct lpfc_dmabuf *dmabuf;
12603 LPFC_MBOXQ_t *mbox;
12604 int rc, length, status = 0;
12605 uint32_t shdr_status, shdr_add_status;
12606 union lpfc_sli4_cfg_shdr *shdr;
12607 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12609 /* sanity check on queue memory */
12612 if (!phba->sli4_hba.pc_sli4_params.supported)
12613 hw_page_size = SLI4_PAGE_SIZE;
12615 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12618 length = (sizeof(struct lpfc_mbx_mq_create_ext) -
12619 sizeof(struct lpfc_sli4_cfg_mhdr));
12620 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12621 LPFC_MBOX_OPCODE_MQ_CREATE_EXT,
12622 length, LPFC_SLI4_MBX_EMBED);
12624 mq_create_ext = &mbox->u.mqe.un.mq_create_ext;
12625 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr;
12626 bf_set(lpfc_mbx_mq_create_ext_num_pages,
12627 &mq_create_ext->u.request, mq->page_count);
12628 bf_set(lpfc_mbx_mq_create_ext_async_evt_link,
12629 &mq_create_ext->u.request, 1);
12630 bf_set(lpfc_mbx_mq_create_ext_async_evt_fip,
12631 &mq_create_ext->u.request, 1);
12632 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5,
12633 &mq_create_ext->u.request, 1);
12634 bf_set(lpfc_mbx_mq_create_ext_async_evt_fc,
12635 &mq_create_ext->u.request, 1);
12636 bf_set(lpfc_mbx_mq_create_ext_async_evt_sli,
12637 &mq_create_ext->u.request, 1);
12638 bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1);
12639 bf_set(lpfc_mbox_hdr_version, &shdr->request,
12640 phba->sli4_hba.pc_sli4_params.mqv);
12641 if (phba->sli4_hba.pc_sli4_params.mqv == LPFC_Q_CREATE_VERSION_1)
12642 bf_set(lpfc_mbx_mq_create_ext_cq_id, &mq_create_ext->u.request,
12645 bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context,
12647 switch (mq->entry_count) {
12649 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12650 "0362 Unsupported MQ count. (%d)\n",
12652 if (mq->entry_count < 16) {
12656 /* otherwise default to smallest count (drop through) */
12658 bf_set(lpfc_mq_context_ring_size,
12659 &mq_create_ext->u.request.context,
12660 LPFC_MQ_RING_SIZE_16);
12663 bf_set(lpfc_mq_context_ring_size,
12664 &mq_create_ext->u.request.context,
12665 LPFC_MQ_RING_SIZE_32);
12668 bf_set(lpfc_mq_context_ring_size,
12669 &mq_create_ext->u.request.context,
12670 LPFC_MQ_RING_SIZE_64);
12673 bf_set(lpfc_mq_context_ring_size,
12674 &mq_create_ext->u.request.context,
12675 LPFC_MQ_RING_SIZE_128);
12678 list_for_each_entry(dmabuf, &mq->page_list, list) {
12679 memset(dmabuf->virt, 0, hw_page_size);
12680 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_lo =
12681 putPaddrLow(dmabuf->phys);
12682 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_hi =
12683 putPaddrHigh(dmabuf->phys);
12685 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12686 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
12687 &mq_create_ext->u.response);
12688 if (rc != MBX_SUCCESS) {
12689 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12690 "2795 MQ_CREATE_EXT failed with "
12691 "status x%x. Failback to MQ_CREATE.\n",
12693 lpfc_mq_create_fb_init(phba, mq, mbox, cq);
12694 mq_create = &mbox->u.mqe.un.mq_create;
12695 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12696 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
12697 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
12698 &mq_create->u.response);
12701 /* The IOCTL status is embedded in the mailbox subheader. */
12702 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12703 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12704 if (shdr_status || shdr_add_status || rc) {
12705 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12706 "2502 MQ_CREATE mailbox failed with "
12707 "status x%x add_status x%x, mbx status x%x\n",
12708 shdr_status, shdr_add_status, rc);
12712 if (mq->queue_id == 0xFFFF) {
12716 mq->type = LPFC_MQ;
12717 mq->assoc_qid = cq->queue_id;
12718 mq->subtype = subtype;
12719 mq->host_index = 0;
12722 /* link the mq onto the parent cq child list */
12723 list_add_tail(&mq->list, &cq->child_list);
12725 mempool_free(mbox, phba->mbox_mem_pool);
12730 * lpfc_wq_create - Create a Work Queue on the HBA
12731 * @phba: HBA structure that indicates port to create a queue on.
12732 * @wq: The queue structure to use to create the work queue.
12733 * @cq: The completion queue to bind this work queue to.
12734 * @subtype: The subtype of the work queue indicating its functionality.
12736 * This function creates a work queue, as detailed in @wq, on a port, described
12737 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
12739 * The @phba struct is used to send mailbox command to HBA. The @wq struct
12740 * is used to get the entry count and entry size that are necessary to
12741 * determine the number of pages to allocate and use for this queue. The @cq
12742 * is used to indicate which completion queue to bind this work queue to. This
12743 * function will send the WQ_CREATE mailbox command to the HBA to setup the
12744 * work queue. This function is asynchronous and will wait for the mailbox
12745 * command to finish before continuing.
12747 * On success this function will return a zero. If unable to allocate enough
12748 * memory this function will return -ENOMEM. If the queue create mailbox command
12749 * fails this function will return -ENXIO.
12752 lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
12753 struct lpfc_queue *cq, uint32_t subtype)
12755 struct lpfc_mbx_wq_create *wq_create;
12756 struct lpfc_dmabuf *dmabuf;
12757 LPFC_MBOXQ_t *mbox;
12758 int rc, length, status = 0;
12759 uint32_t shdr_status, shdr_add_status;
12760 union lpfc_sli4_cfg_shdr *shdr;
12761 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12762 struct dma_address *page;
12763 void __iomem *bar_memmap_p;
12764 uint32_t db_offset;
12765 uint16_t pci_barset;
12767 /* sanity check on queue memory */
12770 if (!phba->sli4_hba.pc_sli4_params.supported)
12771 hw_page_size = SLI4_PAGE_SIZE;
12773 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12776 length = (sizeof(struct lpfc_mbx_wq_create) -
12777 sizeof(struct lpfc_sli4_cfg_mhdr));
12778 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
12779 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
12780 length, LPFC_SLI4_MBX_EMBED);
12781 wq_create = &mbox->u.mqe.un.wq_create;
12782 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
12783 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
12785 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
12787 bf_set(lpfc_mbox_hdr_version, &shdr->request,
12788 phba->sli4_hba.pc_sli4_params.wqv);
12790 if (phba->sli4_hba.pc_sli4_params.wqv == LPFC_Q_CREATE_VERSION_1) {
12791 bf_set(lpfc_mbx_wq_create_wqe_count, &wq_create->u.request_1,
12793 switch (wq->entry_size) {
12796 bf_set(lpfc_mbx_wq_create_wqe_size,
12797 &wq_create->u.request_1,
12798 LPFC_WQ_WQE_SIZE_64);
12801 bf_set(lpfc_mbx_wq_create_wqe_size,
12802 &wq_create->u.request_1,
12803 LPFC_WQ_WQE_SIZE_128);
12806 bf_set(lpfc_mbx_wq_create_page_size, &wq_create->u.request_1,
12807 (PAGE_SIZE/SLI4_PAGE_SIZE));
12808 page = wq_create->u.request_1.page;
12810 page = wq_create->u.request.page;
12812 list_for_each_entry(dmabuf, &wq->page_list, list) {
12813 memset(dmabuf->virt, 0, hw_page_size);
12814 page[dmabuf->buffer_tag].addr_lo = putPaddrLow(dmabuf->phys);
12815 page[dmabuf->buffer_tag].addr_hi = putPaddrHigh(dmabuf->phys);
12818 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
12819 bf_set(lpfc_mbx_wq_create_dua, &wq_create->u.request, 1);
12821 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12822 /* The IOCTL status is embedded in the mailbox subheader. */
12823 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12824 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12825 if (shdr_status || shdr_add_status || rc) {
12826 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12827 "2503 WQ_CREATE mailbox failed with "
12828 "status x%x add_status x%x, mbx status x%x\n",
12829 shdr_status, shdr_add_status, rc);
12833 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response);
12834 if (wq->queue_id == 0xFFFF) {
12838 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
12839 wq->db_format = bf_get(lpfc_mbx_wq_create_db_format,
12840 &wq_create->u.response);
12841 if ((wq->db_format != LPFC_DB_LIST_FORMAT) &&
12842 (wq->db_format != LPFC_DB_RING_FORMAT)) {
12843 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12844 "3265 WQ[%d] doorbell format not "
12845 "supported: x%x\n", wq->queue_id,
12850 pci_barset = bf_get(lpfc_mbx_wq_create_bar_set,
12851 &wq_create->u.response);
12852 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
12853 if (!bar_memmap_p) {
12854 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12855 "3263 WQ[%d] failed to memmap pci "
12856 "barset:x%x\n", wq->queue_id,
12861 db_offset = wq_create->u.response.doorbell_offset;
12862 if ((db_offset != LPFC_ULP0_WQ_DOORBELL) &&
12863 (db_offset != LPFC_ULP1_WQ_DOORBELL)) {
12864 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12865 "3252 WQ[%d] doorbell offset not "
12866 "supported: x%x\n", wq->queue_id,
12871 wq->db_regaddr = bar_memmap_p + db_offset;
12872 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12873 "3264 WQ[%d]: barset:x%x, offset:x%x\n",
12874 wq->queue_id, pci_barset, db_offset);
12876 wq->db_format = LPFC_DB_LIST_FORMAT;
12877 wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
12879 wq->type = LPFC_WQ;
12880 wq->assoc_qid = cq->queue_id;
12881 wq->subtype = subtype;
12882 wq->host_index = 0;
12884 wq->entry_repost = LPFC_RELEASE_NOTIFICATION_INTERVAL;
12886 /* link the wq onto the parent cq child list */
12887 list_add_tail(&wq->list, &cq->child_list);
12889 mempool_free(mbox, phba->mbox_mem_pool);
12894 * lpfc_rq_adjust_repost - Adjust entry_repost for an RQ
12895 * @phba: HBA structure that indicates port to create a queue on.
12896 * @rq: The queue structure to use for the receive queue.
12897 * @qno: The associated HBQ number
12900 * For SLI4 we need to adjust the RQ repost value based on
12901 * the number of buffers that are initially posted to the RQ.
12904 lpfc_rq_adjust_repost(struct lpfc_hba *phba, struct lpfc_queue *rq, int qno)
12908 /* sanity check on queue memory */
12911 cnt = lpfc_hbq_defs[qno]->entry_count;
12913 /* Recalc repost for RQs based on buffers initially posted */
12915 if (cnt < LPFC_QUEUE_MIN_REPOST)
12916 cnt = LPFC_QUEUE_MIN_REPOST;
12918 rq->entry_repost = cnt;
12922 * lpfc_rq_create - Create a Receive Queue on the HBA
12923 * @phba: HBA structure that indicates port to create a queue on.
12924 * @hrq: The queue structure to use to create the header receive queue.
12925 * @drq: The queue structure to use to create the data receive queue.
12926 * @cq: The completion queue to bind this work queue to.
12928 * This function creates a receive buffer queue pair , as detailed in @hrq and
12929 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
12932 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
12933 * struct is used to get the entry count that is necessary to determine the
12934 * number of pages to use for this queue. The @cq is used to indicate which
12935 * completion queue to bind received buffers that are posted to these queues to.
12936 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
12937 * receive queue pair. This function is asynchronous and will wait for the
12938 * mailbox command to finish before continuing.
12940 * On success this function will return a zero. If unable to allocate enough
12941 * memory this function will return -ENOMEM. If the queue create mailbox command
12942 * fails this function will return -ENXIO.
12945 lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
12946 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
12948 struct lpfc_mbx_rq_create *rq_create;
12949 struct lpfc_dmabuf *dmabuf;
12950 LPFC_MBOXQ_t *mbox;
12951 int rc, length, status = 0;
12952 uint32_t shdr_status, shdr_add_status;
12953 union lpfc_sli4_cfg_shdr *shdr;
12954 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12955 void __iomem *bar_memmap_p;
12956 uint32_t db_offset;
12957 uint16_t pci_barset;
12959 /* sanity check on queue memory */
12960 if (!hrq || !drq || !cq)
12962 if (!phba->sli4_hba.pc_sli4_params.supported)
12963 hw_page_size = SLI4_PAGE_SIZE;
12965 if (hrq->entry_count != drq->entry_count)
12967 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12970 length = (sizeof(struct lpfc_mbx_rq_create) -
12971 sizeof(struct lpfc_sli4_cfg_mhdr));
12972 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
12973 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
12974 length, LPFC_SLI4_MBX_EMBED);
12975 rq_create = &mbox->u.mqe.un.rq_create;
12976 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
12977 bf_set(lpfc_mbox_hdr_version, &shdr->request,
12978 phba->sli4_hba.pc_sli4_params.rqv);
12979 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
12980 bf_set(lpfc_rq_context_rqe_count_1,
12981 &rq_create->u.request.context,
12983 rq_create->u.request.context.buffer_size = LPFC_HDR_BUF_SIZE;
12984 bf_set(lpfc_rq_context_rqe_size,
12985 &rq_create->u.request.context,
12987 bf_set(lpfc_rq_context_page_size,
12988 &rq_create->u.request.context,
12989 (PAGE_SIZE/SLI4_PAGE_SIZE));
12991 switch (hrq->entry_count) {
12993 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12994 "2535 Unsupported RQ count. (%d)\n",
12996 if (hrq->entry_count < 512) {
13000 /* otherwise default to smallest count (drop through) */
13002 bf_set(lpfc_rq_context_rqe_count,
13003 &rq_create->u.request.context,
13004 LPFC_RQ_RING_SIZE_512);
13007 bf_set(lpfc_rq_context_rqe_count,
13008 &rq_create->u.request.context,
13009 LPFC_RQ_RING_SIZE_1024);
13012 bf_set(lpfc_rq_context_rqe_count,
13013 &rq_create->u.request.context,
13014 LPFC_RQ_RING_SIZE_2048);
13017 bf_set(lpfc_rq_context_rqe_count,
13018 &rq_create->u.request.context,
13019 LPFC_RQ_RING_SIZE_4096);
13022 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
13023 LPFC_HDR_BUF_SIZE);
13025 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
13027 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
13029 list_for_each_entry(dmabuf, &hrq->page_list, list) {
13030 memset(dmabuf->virt, 0, hw_page_size);
13031 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13032 putPaddrLow(dmabuf->phys);
13033 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13034 putPaddrHigh(dmabuf->phys);
13036 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
13037 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
13039 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13040 /* The IOCTL status is embedded in the mailbox subheader. */
13041 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13042 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13043 if (shdr_status || shdr_add_status || rc) {
13044 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13045 "2504 RQ_CREATE mailbox failed with "
13046 "status x%x add_status x%x, mbx status x%x\n",
13047 shdr_status, shdr_add_status, rc);
13051 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
13052 if (hrq->queue_id == 0xFFFF) {
13057 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
13058 hrq->db_format = bf_get(lpfc_mbx_rq_create_db_format,
13059 &rq_create->u.response);
13060 if ((hrq->db_format != LPFC_DB_LIST_FORMAT) &&
13061 (hrq->db_format != LPFC_DB_RING_FORMAT)) {
13062 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13063 "3262 RQ [%d] doorbell format not "
13064 "supported: x%x\n", hrq->queue_id,
13070 pci_barset = bf_get(lpfc_mbx_rq_create_bar_set,
13071 &rq_create->u.response);
13072 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
13073 if (!bar_memmap_p) {
13074 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13075 "3269 RQ[%d] failed to memmap pci "
13076 "barset:x%x\n", hrq->queue_id,
13082 db_offset = rq_create->u.response.doorbell_offset;
13083 if ((db_offset != LPFC_ULP0_RQ_DOORBELL) &&
13084 (db_offset != LPFC_ULP1_RQ_DOORBELL)) {
13085 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13086 "3270 RQ[%d] doorbell offset not "
13087 "supported: x%x\n", hrq->queue_id,
13092 hrq->db_regaddr = bar_memmap_p + db_offset;
13093 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13094 "3266 RQ[qid:%d]: barset:x%x, offset:x%x\n",
13095 hrq->queue_id, pci_barset, db_offset);
13097 hrq->db_format = LPFC_DB_RING_FORMAT;
13098 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
13100 hrq->type = LPFC_HRQ;
13101 hrq->assoc_qid = cq->queue_id;
13102 hrq->subtype = subtype;
13103 hrq->host_index = 0;
13104 hrq->hba_index = 0;
13106 /* now create the data queue */
13107 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13108 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
13109 length, LPFC_SLI4_MBX_EMBED);
13110 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13111 phba->sli4_hba.pc_sli4_params.rqv);
13112 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
13113 bf_set(lpfc_rq_context_rqe_count_1,
13114 &rq_create->u.request.context, hrq->entry_count);
13115 rq_create->u.request.context.buffer_size = LPFC_DATA_BUF_SIZE;
13116 bf_set(lpfc_rq_context_rqe_size, &rq_create->u.request.context,
13118 bf_set(lpfc_rq_context_page_size, &rq_create->u.request.context,
13119 (PAGE_SIZE/SLI4_PAGE_SIZE));
13121 switch (drq->entry_count) {
13123 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13124 "2536 Unsupported RQ count. (%d)\n",
13126 if (drq->entry_count < 512) {
13130 /* otherwise default to smallest count (drop through) */
13132 bf_set(lpfc_rq_context_rqe_count,
13133 &rq_create->u.request.context,
13134 LPFC_RQ_RING_SIZE_512);
13137 bf_set(lpfc_rq_context_rqe_count,
13138 &rq_create->u.request.context,
13139 LPFC_RQ_RING_SIZE_1024);
13142 bf_set(lpfc_rq_context_rqe_count,
13143 &rq_create->u.request.context,
13144 LPFC_RQ_RING_SIZE_2048);
13147 bf_set(lpfc_rq_context_rqe_count,
13148 &rq_create->u.request.context,
13149 LPFC_RQ_RING_SIZE_4096);
13152 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
13153 LPFC_DATA_BUF_SIZE);
13155 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
13157 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
13159 list_for_each_entry(dmabuf, &drq->page_list, list) {
13160 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13161 putPaddrLow(dmabuf->phys);
13162 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13163 putPaddrHigh(dmabuf->phys);
13165 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
13166 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
13167 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13168 /* The IOCTL status is embedded in the mailbox subheader. */
13169 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
13170 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13171 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13172 if (shdr_status || shdr_add_status || rc) {
13176 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
13177 if (drq->queue_id == 0xFFFF) {
13181 drq->type = LPFC_DRQ;
13182 drq->assoc_qid = cq->queue_id;
13183 drq->subtype = subtype;
13184 drq->host_index = 0;
13185 drq->hba_index = 0;
13187 /* link the header and data RQs onto the parent cq child list */
13188 list_add_tail(&hrq->list, &cq->child_list);
13189 list_add_tail(&drq->list, &cq->child_list);
13192 mempool_free(mbox, phba->mbox_mem_pool);
13197 * lpfc_eq_destroy - Destroy an event Queue on the HBA
13198 * @eq: The queue structure associated with the queue to destroy.
13200 * This function destroys a queue, as detailed in @eq by sending an mailbox
13201 * command, specific to the type of queue, to the HBA.
13203 * The @eq struct is used to get the queue ID of the queue to destroy.
13205 * On success this function will return a zero. If the queue destroy mailbox
13206 * command fails this function will return -ENXIO.
13209 lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
13211 LPFC_MBOXQ_t *mbox;
13212 int rc, length, status = 0;
13213 uint32_t shdr_status, shdr_add_status;
13214 union lpfc_sli4_cfg_shdr *shdr;
13216 /* sanity check on queue memory */
13219 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
13222 length = (sizeof(struct lpfc_mbx_eq_destroy) -
13223 sizeof(struct lpfc_sli4_cfg_mhdr));
13224 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13225 LPFC_MBOX_OPCODE_EQ_DESTROY,
13226 length, LPFC_SLI4_MBX_EMBED);
13227 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
13229 mbox->vport = eq->phba->pport;
13230 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13232 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
13233 /* The IOCTL status is embedded in the mailbox subheader. */
13234 shdr = (union lpfc_sli4_cfg_shdr *)
13235 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
13236 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13237 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13238 if (shdr_status || shdr_add_status || rc) {
13239 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13240 "2505 EQ_DESTROY mailbox failed with "
13241 "status x%x add_status x%x, mbx status x%x\n",
13242 shdr_status, shdr_add_status, rc);
13246 /* Remove eq from any list */
13247 list_del_init(&eq->list);
13248 mempool_free(mbox, eq->phba->mbox_mem_pool);
13253 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
13254 * @cq: The queue structure associated with the queue to destroy.
13256 * This function destroys a queue, as detailed in @cq by sending an mailbox
13257 * command, specific to the type of queue, to the HBA.
13259 * The @cq struct is used to get the queue ID of the queue to destroy.
13261 * On success this function will return a zero. If the queue destroy mailbox
13262 * command fails this function will return -ENXIO.
13265 lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
13267 LPFC_MBOXQ_t *mbox;
13268 int rc, length, status = 0;
13269 uint32_t shdr_status, shdr_add_status;
13270 union lpfc_sli4_cfg_shdr *shdr;
13272 /* sanity check on queue memory */
13275 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
13278 length = (sizeof(struct lpfc_mbx_cq_destroy) -
13279 sizeof(struct lpfc_sli4_cfg_mhdr));
13280 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13281 LPFC_MBOX_OPCODE_CQ_DESTROY,
13282 length, LPFC_SLI4_MBX_EMBED);
13283 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
13285 mbox->vport = cq->phba->pport;
13286 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13287 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
13288 /* The IOCTL status is embedded in the mailbox subheader. */
13289 shdr = (union lpfc_sli4_cfg_shdr *)
13290 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
13291 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13292 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13293 if (shdr_status || shdr_add_status || rc) {
13294 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13295 "2506 CQ_DESTROY mailbox failed with "
13296 "status x%x add_status x%x, mbx status x%x\n",
13297 shdr_status, shdr_add_status, rc);
13300 /* Remove cq from any list */
13301 list_del_init(&cq->list);
13302 mempool_free(mbox, cq->phba->mbox_mem_pool);
13307 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
13308 * @qm: The queue structure associated with the queue to destroy.
13310 * This function destroys a queue, as detailed in @mq by sending an mailbox
13311 * command, specific to the type of queue, to the HBA.
13313 * The @mq struct is used to get the queue ID of the queue to destroy.
13315 * On success this function will return a zero. If the queue destroy mailbox
13316 * command fails this function will return -ENXIO.
13319 lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
13321 LPFC_MBOXQ_t *mbox;
13322 int rc, length, status = 0;
13323 uint32_t shdr_status, shdr_add_status;
13324 union lpfc_sli4_cfg_shdr *shdr;
13326 /* sanity check on queue memory */
13329 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
13332 length = (sizeof(struct lpfc_mbx_mq_destroy) -
13333 sizeof(struct lpfc_sli4_cfg_mhdr));
13334 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13335 LPFC_MBOX_OPCODE_MQ_DESTROY,
13336 length, LPFC_SLI4_MBX_EMBED);
13337 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
13339 mbox->vport = mq->phba->pport;
13340 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13341 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
13342 /* The IOCTL status is embedded in the mailbox subheader. */
13343 shdr = (union lpfc_sli4_cfg_shdr *)
13344 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
13345 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13346 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13347 if (shdr_status || shdr_add_status || rc) {
13348 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13349 "2507 MQ_DESTROY mailbox failed with "
13350 "status x%x add_status x%x, mbx status x%x\n",
13351 shdr_status, shdr_add_status, rc);
13354 /* Remove mq from any list */
13355 list_del_init(&mq->list);
13356 mempool_free(mbox, mq->phba->mbox_mem_pool);
13361 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
13362 * @wq: The queue structure associated with the queue to destroy.
13364 * This function destroys a queue, as detailed in @wq by sending an mailbox
13365 * command, specific to the type of queue, to the HBA.
13367 * The @wq struct is used to get the queue ID of the queue to destroy.
13369 * On success this function will return a zero. If the queue destroy mailbox
13370 * command fails this function will return -ENXIO.
13373 lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
13375 LPFC_MBOXQ_t *mbox;
13376 int rc, length, status = 0;
13377 uint32_t shdr_status, shdr_add_status;
13378 union lpfc_sli4_cfg_shdr *shdr;
13380 /* sanity check on queue memory */
13383 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
13386 length = (sizeof(struct lpfc_mbx_wq_destroy) -
13387 sizeof(struct lpfc_sli4_cfg_mhdr));
13388 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13389 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
13390 length, LPFC_SLI4_MBX_EMBED);
13391 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
13393 mbox->vport = wq->phba->pport;
13394 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13395 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
13396 shdr = (union lpfc_sli4_cfg_shdr *)
13397 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
13398 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13399 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13400 if (shdr_status || shdr_add_status || rc) {
13401 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13402 "2508 WQ_DESTROY mailbox failed with "
13403 "status x%x add_status x%x, mbx status x%x\n",
13404 shdr_status, shdr_add_status, rc);
13407 /* Remove wq from any list */
13408 list_del_init(&wq->list);
13409 mempool_free(mbox, wq->phba->mbox_mem_pool);
13414 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
13415 * @rq: The queue structure associated with the queue to destroy.
13417 * This function destroys a queue, as detailed in @rq by sending an mailbox
13418 * command, specific to the type of queue, to the HBA.
13420 * The @rq struct is used to get the queue ID of the queue to destroy.
13422 * On success this function will return a zero. If the queue destroy mailbox
13423 * command fails this function will return -ENXIO.
13426 lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
13427 struct lpfc_queue *drq)
13429 LPFC_MBOXQ_t *mbox;
13430 int rc, length, status = 0;
13431 uint32_t shdr_status, shdr_add_status;
13432 union lpfc_sli4_cfg_shdr *shdr;
13434 /* sanity check on queue memory */
13437 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
13440 length = (sizeof(struct lpfc_mbx_rq_destroy) -
13441 sizeof(struct lpfc_sli4_cfg_mhdr));
13442 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13443 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
13444 length, LPFC_SLI4_MBX_EMBED);
13445 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
13447 mbox->vport = hrq->phba->pport;
13448 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13449 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
13450 /* The IOCTL status is embedded in the mailbox subheader. */
13451 shdr = (union lpfc_sli4_cfg_shdr *)
13452 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
13453 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13454 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13455 if (shdr_status || shdr_add_status || rc) {
13456 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13457 "2509 RQ_DESTROY mailbox failed with "
13458 "status x%x add_status x%x, mbx status x%x\n",
13459 shdr_status, shdr_add_status, rc);
13460 if (rc != MBX_TIMEOUT)
13461 mempool_free(mbox, hrq->phba->mbox_mem_pool);
13464 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
13466 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
13467 shdr = (union lpfc_sli4_cfg_shdr *)
13468 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
13469 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13470 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13471 if (shdr_status || shdr_add_status || rc) {
13472 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13473 "2510 RQ_DESTROY mailbox failed with "
13474 "status x%x add_status x%x, mbx status x%x\n",
13475 shdr_status, shdr_add_status, rc);
13478 list_del_init(&hrq->list);
13479 list_del_init(&drq->list);
13480 mempool_free(mbox, hrq->phba->mbox_mem_pool);
13485 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
13486 * @phba: The virtual port for which this call being executed.
13487 * @pdma_phys_addr0: Physical address of the 1st SGL page.
13488 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
13489 * @xritag: the xritag that ties this io to the SGL pages.
13491 * This routine will post the sgl pages for the IO that has the xritag
13492 * that is in the iocbq structure. The xritag is assigned during iocbq
13493 * creation and persists for as long as the driver is loaded.
13494 * if the caller has fewer than 256 scatter gather segments to map then
13495 * pdma_phys_addr1 should be 0.
13496 * If the caller needs to map more than 256 scatter gather segment then
13497 * pdma_phys_addr1 should be a valid physical address.
13498 * physical address for SGLs must be 64 byte aligned.
13499 * If you are going to map 2 SGL's then the first one must have 256 entries
13500 * the second sgl can have between 1 and 256 entries.
13504 * -ENXIO, -ENOMEM - Failure
13507 lpfc_sli4_post_sgl(struct lpfc_hba *phba,
13508 dma_addr_t pdma_phys_addr0,
13509 dma_addr_t pdma_phys_addr1,
13512 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
13513 LPFC_MBOXQ_t *mbox;
13515 uint32_t shdr_status, shdr_add_status;
13517 union lpfc_sli4_cfg_shdr *shdr;
13519 if (xritag == NO_XRI) {
13520 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13521 "0364 Invalid param:\n");
13525 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13529 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13530 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
13531 sizeof(struct lpfc_mbx_post_sgl_pages) -
13532 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
13534 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
13535 &mbox->u.mqe.un.post_sgl_pages;
13536 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
13537 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
13539 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
13540 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
13541 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
13542 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
13544 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
13545 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
13546 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
13547 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
13548 if (!phba->sli4_hba.intr_enable)
13549 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13551 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
13552 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
13554 /* The IOCTL status is embedded in the mailbox subheader. */
13555 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
13556 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13557 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13558 if (rc != MBX_TIMEOUT)
13559 mempool_free(mbox, phba->mbox_mem_pool);
13560 if (shdr_status || shdr_add_status || rc) {
13561 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13562 "2511 POST_SGL mailbox failed with "
13563 "status x%x add_status x%x, mbx status x%x\n",
13564 shdr_status, shdr_add_status, rc);
13571 * lpfc_sli4_alloc_xri - Get an available rpi in the device's range
13572 * @phba: pointer to lpfc hba data structure.
13574 * This routine is invoked to post rpi header templates to the
13575 * HBA consistent with the SLI-4 interface spec. This routine
13576 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
13577 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
13580 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
13581 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
13584 lpfc_sli4_alloc_xri(struct lpfc_hba *phba)
13589 * Fetch the next logical xri. Because this index is logical,
13590 * the driver starts at 0 each time.
13592 spin_lock_irq(&phba->hbalock);
13593 xri = find_next_zero_bit(phba->sli4_hba.xri_bmask,
13594 phba->sli4_hba.max_cfg_param.max_xri, 0);
13595 if (xri >= phba->sli4_hba.max_cfg_param.max_xri) {
13596 spin_unlock_irq(&phba->hbalock);
13599 set_bit(xri, phba->sli4_hba.xri_bmask);
13600 phba->sli4_hba.max_cfg_param.xri_used++;
13602 spin_unlock_irq(&phba->hbalock);
13607 * lpfc_sli4_free_xri - Release an xri for reuse.
13608 * @phba: pointer to lpfc hba data structure.
13610 * This routine is invoked to release an xri to the pool of
13611 * available rpis maintained by the driver.
13614 __lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
13616 if (test_and_clear_bit(xri, phba->sli4_hba.xri_bmask)) {
13617 phba->sli4_hba.max_cfg_param.xri_used--;
13622 * lpfc_sli4_free_xri - Release an xri for reuse.
13623 * @phba: pointer to lpfc hba data structure.
13625 * This routine is invoked to release an xri to the pool of
13626 * available rpis maintained by the driver.
13629 lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
13631 spin_lock_irq(&phba->hbalock);
13632 __lpfc_sli4_free_xri(phba, xri);
13633 spin_unlock_irq(&phba->hbalock);
13637 * lpfc_sli4_next_xritag - Get an xritag for the io
13638 * @phba: Pointer to HBA context object.
13640 * This function gets an xritag for the iocb. If there is no unused xritag
13641 * it will return 0xffff.
13642 * The function returns the allocated xritag if successful, else returns zero.
13643 * Zero is not a valid xritag.
13644 * The caller is not required to hold any lock.
13647 lpfc_sli4_next_xritag(struct lpfc_hba *phba)
13649 uint16_t xri_index;
13651 xri_index = lpfc_sli4_alloc_xri(phba);
13652 if (xri_index == NO_XRI)
13653 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13654 "2004 Failed to allocate XRI.last XRITAG is %d"
13655 " Max XRI is %d, Used XRI is %d\n",
13657 phba->sli4_hba.max_cfg_param.max_xri,
13658 phba->sli4_hba.max_cfg_param.xri_used);
13663 * lpfc_sli4_post_els_sgl_list - post a block of ELS sgls to the port.
13664 * @phba: pointer to lpfc hba data structure.
13665 * @post_sgl_list: pointer to els sgl entry list.
13666 * @count: number of els sgl entries on the list.
13668 * This routine is invoked to post a block of driver's sgl pages to the
13669 * HBA using non-embedded mailbox command. No Lock is held. This routine
13670 * is only called when the driver is loading and after all IO has been
13674 lpfc_sli4_post_els_sgl_list(struct lpfc_hba *phba,
13675 struct list_head *post_sgl_list,
13678 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
13679 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
13680 struct sgl_page_pairs *sgl_pg_pairs;
13682 LPFC_MBOXQ_t *mbox;
13683 uint32_t reqlen, alloclen, pg_pairs;
13685 uint16_t xritag_start = 0;
13687 uint32_t shdr_status, shdr_add_status;
13688 union lpfc_sli4_cfg_shdr *shdr;
13690 reqlen = phba->sli4_hba.els_xri_cnt * sizeof(struct sgl_page_pairs) +
13691 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
13692 if (reqlen > SLI4_PAGE_SIZE) {
13693 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13694 "2559 Block sgl registration required DMA "
13695 "size (%d) great than a page\n", reqlen);
13698 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13702 /* Allocate DMA memory and set up the non-embedded mailbox command */
13703 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13704 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
13705 LPFC_SLI4_MBX_NEMBED);
13707 if (alloclen < reqlen) {
13708 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13709 "0285 Allocated DMA memory size (%d) is "
13710 "less than the requested DMA memory "
13711 "size (%d)\n", alloclen, reqlen);
13712 lpfc_sli4_mbox_cmd_free(phba, mbox);
13715 /* Set up the SGL pages in the non-embedded DMA pages */
13716 viraddr = mbox->sge_array->addr[0];
13717 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
13718 sgl_pg_pairs = &sgl->sgl_pg_pairs;
13721 list_for_each_entry_safe(sglq_entry, sglq_next, post_sgl_list, list) {
13722 /* Set up the sge entry */
13723 sgl_pg_pairs->sgl_pg0_addr_lo =
13724 cpu_to_le32(putPaddrLow(sglq_entry->phys));
13725 sgl_pg_pairs->sgl_pg0_addr_hi =
13726 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
13727 sgl_pg_pairs->sgl_pg1_addr_lo =
13728 cpu_to_le32(putPaddrLow(0));
13729 sgl_pg_pairs->sgl_pg1_addr_hi =
13730 cpu_to_le32(putPaddrHigh(0));
13732 /* Keep the first xritag on the list */
13734 xritag_start = sglq_entry->sli4_xritag;
13739 /* Complete initialization and perform endian conversion. */
13740 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
13741 bf_set(lpfc_post_sgl_pages_xricnt, sgl, phba->sli4_hba.els_xri_cnt);
13742 sgl->word0 = cpu_to_le32(sgl->word0);
13743 if (!phba->sli4_hba.intr_enable)
13744 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13746 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
13747 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
13749 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
13750 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13751 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13752 if (rc != MBX_TIMEOUT)
13753 lpfc_sli4_mbox_cmd_free(phba, mbox);
13754 if (shdr_status || shdr_add_status || rc) {
13755 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13756 "2513 POST_SGL_BLOCK mailbox command failed "
13757 "status x%x add_status x%x mbx status x%x\n",
13758 shdr_status, shdr_add_status, rc);
13765 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
13766 * @phba: pointer to lpfc hba data structure.
13767 * @sblist: pointer to scsi buffer list.
13768 * @count: number of scsi buffers on the list.
13770 * This routine is invoked to post a block of @count scsi sgl pages from a
13771 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
13776 lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba,
13777 struct list_head *sblist,
13780 struct lpfc_scsi_buf *psb;
13781 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
13782 struct sgl_page_pairs *sgl_pg_pairs;
13784 LPFC_MBOXQ_t *mbox;
13785 uint32_t reqlen, alloclen, pg_pairs;
13787 uint16_t xritag_start = 0;
13789 uint32_t shdr_status, shdr_add_status;
13790 dma_addr_t pdma_phys_bpl1;
13791 union lpfc_sli4_cfg_shdr *shdr;
13793 /* Calculate the requested length of the dma memory */
13794 reqlen = count * sizeof(struct sgl_page_pairs) +
13795 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
13796 if (reqlen > SLI4_PAGE_SIZE) {
13797 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13798 "0217 Block sgl registration required DMA "
13799 "size (%d) great than a page\n", reqlen);
13802 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13804 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13805 "0283 Failed to allocate mbox cmd memory\n");
13809 /* Allocate DMA memory and set up the non-embedded mailbox command */
13810 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13811 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
13812 LPFC_SLI4_MBX_NEMBED);
13814 if (alloclen < reqlen) {
13815 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13816 "2561 Allocated DMA memory size (%d) is "
13817 "less than the requested DMA memory "
13818 "size (%d)\n", alloclen, reqlen);
13819 lpfc_sli4_mbox_cmd_free(phba, mbox);
13823 /* Get the first SGE entry from the non-embedded DMA memory */
13824 viraddr = mbox->sge_array->addr[0];
13826 /* Set up the SGL pages in the non-embedded DMA pages */
13827 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
13828 sgl_pg_pairs = &sgl->sgl_pg_pairs;
13831 list_for_each_entry(psb, sblist, list) {
13832 /* Set up the sge entry */
13833 sgl_pg_pairs->sgl_pg0_addr_lo =
13834 cpu_to_le32(putPaddrLow(psb->dma_phys_bpl));
13835 sgl_pg_pairs->sgl_pg0_addr_hi =
13836 cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl));
13837 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
13838 pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE;
13840 pdma_phys_bpl1 = 0;
13841 sgl_pg_pairs->sgl_pg1_addr_lo =
13842 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
13843 sgl_pg_pairs->sgl_pg1_addr_hi =
13844 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
13845 /* Keep the first xritag on the list */
13847 xritag_start = psb->cur_iocbq.sli4_xritag;
13851 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
13852 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
13853 /* Perform endian conversion if necessary */
13854 sgl->word0 = cpu_to_le32(sgl->word0);
13856 if (!phba->sli4_hba.intr_enable)
13857 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13859 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
13860 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
13862 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
13863 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13864 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13865 if (rc != MBX_TIMEOUT)
13866 lpfc_sli4_mbox_cmd_free(phba, mbox);
13867 if (shdr_status || shdr_add_status || rc) {
13868 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13869 "2564 POST_SGL_BLOCK mailbox command failed "
13870 "status x%x add_status x%x mbx status x%x\n",
13871 shdr_status, shdr_add_status, rc);
13878 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
13879 * @phba: pointer to lpfc_hba struct that the frame was received on
13880 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
13882 * This function checks the fields in the @fc_hdr to see if the FC frame is a
13883 * valid type of frame that the LPFC driver will handle. This function will
13884 * return a zero if the frame is a valid frame or a non zero value when the
13885 * frame does not pass the check.
13888 lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
13890 /* make rctl_names static to save stack space */
13891 static char *rctl_names[] = FC_RCTL_NAMES_INIT;
13892 char *type_names[] = FC_TYPE_NAMES_INIT;
13893 struct fc_vft_header *fc_vft_hdr;
13894 uint32_t *header = (uint32_t *) fc_hdr;
13896 switch (fc_hdr->fh_r_ctl) {
13897 case FC_RCTL_DD_UNCAT: /* uncategorized information */
13898 case FC_RCTL_DD_SOL_DATA: /* solicited data */
13899 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
13900 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
13901 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
13902 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
13903 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
13904 case FC_RCTL_DD_CMD_STATUS: /* command status */
13905 case FC_RCTL_ELS_REQ: /* extended link services request */
13906 case FC_RCTL_ELS_REP: /* extended link services reply */
13907 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
13908 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
13909 case FC_RCTL_BA_NOP: /* basic link service NOP */
13910 case FC_RCTL_BA_ABTS: /* basic link service abort */
13911 case FC_RCTL_BA_RMC: /* remove connection */
13912 case FC_RCTL_BA_ACC: /* basic accept */
13913 case FC_RCTL_BA_RJT: /* basic reject */
13914 case FC_RCTL_BA_PRMT:
13915 case FC_RCTL_ACK_1: /* acknowledge_1 */
13916 case FC_RCTL_ACK_0: /* acknowledge_0 */
13917 case FC_RCTL_P_RJT: /* port reject */
13918 case FC_RCTL_F_RJT: /* fabric reject */
13919 case FC_RCTL_P_BSY: /* port busy */
13920 case FC_RCTL_F_BSY: /* fabric busy to data frame */
13921 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
13922 case FC_RCTL_LCR: /* link credit reset */
13923 case FC_RCTL_END: /* end */
13925 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
13926 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
13927 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
13928 return lpfc_fc_frame_check(phba, fc_hdr);
13932 switch (fc_hdr->fh_type) {
13944 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
13945 "2538 Received frame rctl:%s type:%s "
13946 "Frame Data:%08x %08x %08x %08x %08x %08x\n",
13947 rctl_names[fc_hdr->fh_r_ctl],
13948 type_names[fc_hdr->fh_type],
13949 be32_to_cpu(header[0]), be32_to_cpu(header[1]),
13950 be32_to_cpu(header[2]), be32_to_cpu(header[3]),
13951 be32_to_cpu(header[4]), be32_to_cpu(header[5]));
13954 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
13955 "2539 Dropped frame rctl:%s type:%s\n",
13956 rctl_names[fc_hdr->fh_r_ctl],
13957 type_names[fc_hdr->fh_type]);
13962 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
13963 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
13965 * This function processes the FC header to retrieve the VFI from the VF
13966 * header, if one exists. This function will return the VFI if one exists
13967 * or 0 if no VSAN Header exists.
13970 lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
13972 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
13974 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
13976 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
13980 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
13981 * @phba: Pointer to the HBA structure to search for the vport on
13982 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
13983 * @fcfi: The FC Fabric ID that the frame came from
13985 * This function searches the @phba for a vport that matches the content of the
13986 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
13987 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
13988 * returns the matching vport pointer or NULL if unable to match frame to a
13991 static struct lpfc_vport *
13992 lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
13995 struct lpfc_vport **vports;
13996 struct lpfc_vport *vport = NULL;
13998 uint32_t did = (fc_hdr->fh_d_id[0] << 16 |
13999 fc_hdr->fh_d_id[1] << 8 |
14000 fc_hdr->fh_d_id[2]);
14002 if (did == Fabric_DID)
14003 return phba->pport;
14004 if ((phba->pport->fc_flag & FC_PT2PT) &&
14005 !(phba->link_state == LPFC_HBA_READY))
14006 return phba->pport;
14008 vports = lpfc_create_vport_work_array(phba);
14009 if (vports != NULL)
14010 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
14011 if (phba->fcf.fcfi == fcfi &&
14012 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
14013 vports[i]->fc_myDID == did) {
14018 lpfc_destroy_vport_work_array(phba, vports);
14023 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
14024 * @vport: The vport to work on.
14026 * This function updates the receive sequence time stamp for this vport. The
14027 * receive sequence time stamp indicates the time that the last frame of the
14028 * the sequence that has been idle for the longest amount of time was received.
14029 * the driver uses this time stamp to indicate if any received sequences have
14033 lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
14035 struct lpfc_dmabuf *h_buf;
14036 struct hbq_dmabuf *dmabuf = NULL;
14038 /* get the oldest sequence on the rcv list */
14039 h_buf = list_get_first(&vport->rcv_buffer_list,
14040 struct lpfc_dmabuf, list);
14043 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14044 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
14048 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
14049 * @vport: The vport that the received sequences were sent to.
14051 * This function cleans up all outstanding received sequences. This is called
14052 * by the driver when a link event or user action invalidates all the received
14056 lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
14058 struct lpfc_dmabuf *h_buf, *hnext;
14059 struct lpfc_dmabuf *d_buf, *dnext;
14060 struct hbq_dmabuf *dmabuf = NULL;
14062 /* start with the oldest sequence on the rcv list */
14063 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
14064 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14065 list_del_init(&dmabuf->hbuf.list);
14066 list_for_each_entry_safe(d_buf, dnext,
14067 &dmabuf->dbuf.list, list) {
14068 list_del_init(&d_buf->list);
14069 lpfc_in_buf_free(vport->phba, d_buf);
14071 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
14076 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
14077 * @vport: The vport that the received sequences were sent to.
14079 * This function determines whether any received sequences have timed out by
14080 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
14081 * indicates that there is at least one timed out sequence this routine will
14082 * go through the received sequences one at a time from most inactive to most
14083 * active to determine which ones need to be cleaned up. Once it has determined
14084 * that a sequence needs to be cleaned up it will simply free up the resources
14085 * without sending an abort.
14088 lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
14090 struct lpfc_dmabuf *h_buf, *hnext;
14091 struct lpfc_dmabuf *d_buf, *dnext;
14092 struct hbq_dmabuf *dmabuf = NULL;
14093 unsigned long timeout;
14094 int abort_count = 0;
14096 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
14097 vport->rcv_buffer_time_stamp);
14098 if (list_empty(&vport->rcv_buffer_list) ||
14099 time_before(jiffies, timeout))
14101 /* start with the oldest sequence on the rcv list */
14102 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
14103 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14104 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
14105 dmabuf->time_stamp);
14106 if (time_before(jiffies, timeout))
14109 list_del_init(&dmabuf->hbuf.list);
14110 list_for_each_entry_safe(d_buf, dnext,
14111 &dmabuf->dbuf.list, list) {
14112 list_del_init(&d_buf->list);
14113 lpfc_in_buf_free(vport->phba, d_buf);
14115 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
14118 lpfc_update_rcv_time_stamp(vport);
14122 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
14123 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
14125 * This function searches through the existing incomplete sequences that have
14126 * been sent to this @vport. If the frame matches one of the incomplete
14127 * sequences then the dbuf in the @dmabuf is added to the list of frames that
14128 * make up that sequence. If no sequence is found that matches this frame then
14129 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
14130 * This function returns a pointer to the first dmabuf in the sequence list that
14131 * the frame was linked to.
14133 static struct hbq_dmabuf *
14134 lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
14136 struct fc_frame_header *new_hdr;
14137 struct fc_frame_header *temp_hdr;
14138 struct lpfc_dmabuf *d_buf;
14139 struct lpfc_dmabuf *h_buf;
14140 struct hbq_dmabuf *seq_dmabuf = NULL;
14141 struct hbq_dmabuf *temp_dmabuf = NULL;
14143 INIT_LIST_HEAD(&dmabuf->dbuf.list);
14144 dmabuf->time_stamp = jiffies;
14145 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14146 /* Use the hdr_buf to find the sequence that this frame belongs to */
14147 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
14148 temp_hdr = (struct fc_frame_header *)h_buf->virt;
14149 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
14150 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
14151 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
14153 /* found a pending sequence that matches this frame */
14154 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14159 * This indicates first frame received for this sequence.
14160 * Queue the buffer on the vport's rcv_buffer_list.
14162 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
14163 lpfc_update_rcv_time_stamp(vport);
14166 temp_hdr = seq_dmabuf->hbuf.virt;
14167 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
14168 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
14169 list_del_init(&seq_dmabuf->hbuf.list);
14170 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
14171 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
14172 lpfc_update_rcv_time_stamp(vport);
14175 /* move this sequence to the tail to indicate a young sequence */
14176 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
14177 seq_dmabuf->time_stamp = jiffies;
14178 lpfc_update_rcv_time_stamp(vport);
14179 if (list_empty(&seq_dmabuf->dbuf.list)) {
14180 temp_hdr = dmabuf->hbuf.virt;
14181 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
14184 /* find the correct place in the sequence to insert this frame */
14185 list_for_each_entry_reverse(d_buf, &seq_dmabuf->dbuf.list, list) {
14186 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14187 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
14189 * If the frame's sequence count is greater than the frame on
14190 * the list then insert the frame right after this frame
14192 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
14193 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
14194 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
14202 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
14203 * @vport: pointer to a vitural port
14204 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14206 * This function tries to abort from the partially assembed sequence, described
14207 * by the information from basic abbort @dmabuf. It checks to see whether such
14208 * partially assembled sequence held by the driver. If so, it shall free up all
14209 * the frames from the partially assembled sequence.
14212 * true -- if there is matching partially assembled sequence present and all
14213 * the frames freed with the sequence;
14214 * false -- if there is no matching partially assembled sequence present so
14215 * nothing got aborted in the lower layer driver
14218 lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
14219 struct hbq_dmabuf *dmabuf)
14221 struct fc_frame_header *new_hdr;
14222 struct fc_frame_header *temp_hdr;
14223 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
14224 struct hbq_dmabuf *seq_dmabuf = NULL;
14226 /* Use the hdr_buf to find the sequence that matches this frame */
14227 INIT_LIST_HEAD(&dmabuf->dbuf.list);
14228 INIT_LIST_HEAD(&dmabuf->hbuf.list);
14229 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14230 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
14231 temp_hdr = (struct fc_frame_header *)h_buf->virt;
14232 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
14233 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
14234 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
14236 /* found a pending sequence that matches this frame */
14237 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14241 /* Free up all the frames from the partially assembled sequence */
14243 list_for_each_entry_safe(d_buf, n_buf,
14244 &seq_dmabuf->dbuf.list, list) {
14245 list_del_init(&d_buf->list);
14246 lpfc_in_buf_free(vport->phba, d_buf);
14254 * lpfc_sli4_abort_ulp_seq - Abort assembled unsol sequence from ulp
14255 * @vport: pointer to a vitural port
14256 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14258 * This function tries to abort from the assembed sequence from upper level
14259 * protocol, described by the information from basic abbort @dmabuf. It
14260 * checks to see whether such pending context exists at upper level protocol.
14261 * If so, it shall clean up the pending context.
14264 * true -- if there is matching pending context of the sequence cleaned
14266 * false -- if there is no matching pending context of the sequence present
14270 lpfc_sli4_abort_ulp_seq(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
14272 struct lpfc_hba *phba = vport->phba;
14275 /* Accepting abort at ulp with SLI4 only */
14276 if (phba->sli_rev < LPFC_SLI_REV4)
14279 /* Register all caring upper level protocols to attend abort */
14280 handled = lpfc_ct_handle_unsol_abort(phba, dmabuf);
14288 * lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler
14289 * @phba: Pointer to HBA context object.
14290 * @cmd_iocbq: pointer to the command iocbq structure.
14291 * @rsp_iocbq: pointer to the response iocbq structure.
14293 * This function handles the sequence abort response iocb command complete
14294 * event. It properly releases the memory allocated to the sequence abort
14298 lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba *phba,
14299 struct lpfc_iocbq *cmd_iocbq,
14300 struct lpfc_iocbq *rsp_iocbq)
14302 struct lpfc_nodelist *ndlp;
14305 ndlp = (struct lpfc_nodelist *)cmd_iocbq->context1;
14306 lpfc_nlp_put(ndlp);
14307 lpfc_nlp_not_used(ndlp);
14308 lpfc_sli_release_iocbq(phba, cmd_iocbq);
14311 /* Failure means BLS ABORT RSP did not get delivered to remote node*/
14312 if (rsp_iocbq && rsp_iocbq->iocb.ulpStatus)
14313 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14314 "3154 BLS ABORT RSP failed, data: x%x/x%x\n",
14315 rsp_iocbq->iocb.ulpStatus,
14316 rsp_iocbq->iocb.un.ulpWord[4]);
14320 * lpfc_sli4_xri_inrange - check xri is in range of xris owned by driver.
14321 * @phba: Pointer to HBA context object.
14322 * @xri: xri id in transaction.
14324 * This function validates the xri maps to the known range of XRIs allocated an
14325 * used by the driver.
14328 lpfc_sli4_xri_inrange(struct lpfc_hba *phba,
14333 for (i = 0; i < phba->sli4_hba.max_cfg_param.max_xri; i++) {
14334 if (xri == phba->sli4_hba.xri_ids[i])
14341 * lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort
14342 * @phba: Pointer to HBA context object.
14343 * @fc_hdr: pointer to a FC frame header.
14345 * This function sends a basic response to a previous unsol sequence abort
14346 * event after aborting the sequence handling.
14349 lpfc_sli4_seq_abort_rsp(struct lpfc_vport *vport,
14350 struct fc_frame_header *fc_hdr, bool aborted)
14352 struct lpfc_hba *phba = vport->phba;
14353 struct lpfc_iocbq *ctiocb = NULL;
14354 struct lpfc_nodelist *ndlp;
14355 uint16_t oxid, rxid, xri, lxri;
14356 uint32_t sid, fctl;
14360 if (!lpfc_is_link_up(phba))
14363 sid = sli4_sid_from_fc_hdr(fc_hdr);
14364 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
14365 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
14367 ndlp = lpfc_findnode_did(vport, sid);
14369 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
14371 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
14372 "1268 Failed to allocate ndlp for "
14373 "oxid:x%x SID:x%x\n", oxid, sid);
14376 lpfc_nlp_init(vport, ndlp, sid);
14377 /* Put ndlp onto pport node list */
14378 lpfc_enqueue_node(vport, ndlp);
14379 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
14380 /* re-setup ndlp without removing from node list */
14381 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
14383 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
14384 "3275 Failed to active ndlp found "
14385 "for oxid:x%x SID:x%x\n", oxid, sid);
14390 /* Allocate buffer for rsp iocb */
14391 ctiocb = lpfc_sli_get_iocbq(phba);
14395 /* Extract the F_CTL field from FC_HDR */
14396 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
14398 icmd = &ctiocb->iocb;
14399 icmd->un.xseq64.bdl.bdeSize = 0;
14400 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
14401 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
14402 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
14403 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
14405 /* Fill in the rest of iocb fields */
14406 icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
14407 icmd->ulpBdeCount = 0;
14409 icmd->ulpClass = CLASS3;
14410 icmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
14411 ctiocb->context1 = lpfc_nlp_get(ndlp);
14413 ctiocb->iocb_cmpl = NULL;
14414 ctiocb->vport = phba->pport;
14415 ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_rsp_cmpl;
14416 ctiocb->sli4_lxritag = NO_XRI;
14417 ctiocb->sli4_xritag = NO_XRI;
14419 if (fctl & FC_FC_EX_CTX)
14420 /* Exchange responder sent the abort so we
14426 lxri = lpfc_sli4_xri_inrange(phba, xri);
14427 if (lxri != NO_XRI)
14428 lpfc_set_rrq_active(phba, ndlp, lxri,
14429 (xri == oxid) ? rxid : oxid, 0);
14430 /* For BA_ABTS from exchange responder, if the logical xri with
14431 * the oxid maps to the FCP XRI range, the port no longer has
14432 * that exchange context, send a BLS_RJT. Override the IOCB for
14435 if ((fctl & FC_FC_EX_CTX) &&
14436 (lxri > lpfc_sli4_get_els_iocb_cnt(phba))) {
14437 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
14438 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
14439 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
14440 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
14443 /* If BA_ABTS failed to abort a partially assembled receive sequence,
14444 * the driver no longer has that exchange, send a BLS_RJT. Override
14445 * the IOCB for a BA_RJT.
14447 if (aborted == false) {
14448 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
14449 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
14450 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
14451 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
14454 if (fctl & FC_FC_EX_CTX) {
14455 /* ABTS sent by responder to CT exchange, construction
14456 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
14457 * field and RX_ID from ABTS for RX_ID field.
14459 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_RSP);
14461 /* ABTS sent by initiator to CT exchange, construction
14462 * of BA_ACC will need to allocate a new XRI as for the
14465 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_INT);
14467 bf_set(lpfc_abts_rxid, &icmd->un.bls_rsp, rxid);
14468 bf_set(lpfc_abts_oxid, &icmd->un.bls_rsp, oxid);
14470 /* Xmit CT abts response on exchange <xid> */
14471 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
14472 "1200 Send BLS cmd x%x on oxid x%x Data: x%x\n",
14473 icmd->un.xseq64.w5.hcsw.Rctl, oxid, phba->link_state);
14475 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
14476 if (rc == IOCB_ERROR) {
14477 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
14478 "2925 Failed to issue CT ABTS RSP x%x on "
14479 "xri x%x, Data x%x\n",
14480 icmd->un.xseq64.w5.hcsw.Rctl, oxid,
14482 lpfc_nlp_put(ndlp);
14483 ctiocb->context1 = NULL;
14484 lpfc_sli_release_iocbq(phba, ctiocb);
14489 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
14490 * @vport: Pointer to the vport on which this sequence was received
14491 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14493 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
14494 * receive sequence is only partially assembed by the driver, it shall abort
14495 * the partially assembled frames for the sequence. Otherwise, if the
14496 * unsolicited receive sequence has been completely assembled and passed to
14497 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
14498 * unsolicited sequence has been aborted. After that, it will issue a basic
14499 * accept to accept the abort.
14502 lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
14503 struct hbq_dmabuf *dmabuf)
14505 struct lpfc_hba *phba = vport->phba;
14506 struct fc_frame_header fc_hdr;
14510 /* Make a copy of fc_hdr before the dmabuf being released */
14511 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
14512 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
14514 if (fctl & FC_FC_EX_CTX) {
14515 /* ABTS by responder to exchange, no cleanup needed */
14518 /* ABTS by initiator to exchange, need to do cleanup */
14519 aborted = lpfc_sli4_abort_partial_seq(vport, dmabuf);
14520 if (aborted == false)
14521 aborted = lpfc_sli4_abort_ulp_seq(vport, dmabuf);
14523 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14525 /* Respond with BA_ACC or BA_RJT accordingly */
14526 lpfc_sli4_seq_abort_rsp(vport, &fc_hdr, aborted);
14530 * lpfc_seq_complete - Indicates if a sequence is complete
14531 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14533 * This function checks the sequence, starting with the frame described by
14534 * @dmabuf, to see if all the frames associated with this sequence are present.
14535 * the frames associated with this sequence are linked to the @dmabuf using the
14536 * dbuf list. This function looks for two major things. 1) That the first frame
14537 * has a sequence count of zero. 2) There is a frame with last frame of sequence
14538 * set. 3) That there are no holes in the sequence count. The function will
14539 * return 1 when the sequence is complete, otherwise it will return 0.
14542 lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
14544 struct fc_frame_header *hdr;
14545 struct lpfc_dmabuf *d_buf;
14546 struct hbq_dmabuf *seq_dmabuf;
14550 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14551 /* make sure first fame of sequence has a sequence count of zero */
14552 if (hdr->fh_seq_cnt != seq_count)
14554 fctl = (hdr->fh_f_ctl[0] << 16 |
14555 hdr->fh_f_ctl[1] << 8 |
14557 /* If last frame of sequence we can return success. */
14558 if (fctl & FC_FC_END_SEQ)
14560 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
14561 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14562 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
14563 /* If there is a hole in the sequence count then fail. */
14564 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
14566 fctl = (hdr->fh_f_ctl[0] << 16 |
14567 hdr->fh_f_ctl[1] << 8 |
14569 /* If last frame of sequence we can return success. */
14570 if (fctl & FC_FC_END_SEQ)
14577 * lpfc_prep_seq - Prep sequence for ULP processing
14578 * @vport: Pointer to the vport on which this sequence was received
14579 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14581 * This function takes a sequence, described by a list of frames, and creates
14582 * a list of iocbq structures to describe the sequence. This iocbq list will be
14583 * used to issue to the generic unsolicited sequence handler. This routine
14584 * returns a pointer to the first iocbq in the list. If the function is unable
14585 * to allocate an iocbq then it throw out the received frames that were not
14586 * able to be described and return a pointer to the first iocbq. If unable to
14587 * allocate any iocbqs (including the first) this function will return NULL.
14589 static struct lpfc_iocbq *
14590 lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
14592 struct hbq_dmabuf *hbq_buf;
14593 struct lpfc_dmabuf *d_buf, *n_buf;
14594 struct lpfc_iocbq *first_iocbq, *iocbq;
14595 struct fc_frame_header *fc_hdr;
14597 uint32_t len, tot_len;
14598 struct ulp_bde64 *pbde;
14600 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
14601 /* remove from receive buffer list */
14602 list_del_init(&seq_dmabuf->hbuf.list);
14603 lpfc_update_rcv_time_stamp(vport);
14604 /* get the Remote Port's SID */
14605 sid = sli4_sid_from_fc_hdr(fc_hdr);
14607 /* Get an iocbq struct to fill in. */
14608 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
14610 /* Initialize the first IOCB. */
14611 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
14612 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
14614 /* Check FC Header to see what TYPE of frame we are rcv'ing */
14615 if (sli4_type_from_fc_hdr(fc_hdr) == FC_TYPE_ELS) {
14616 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_ELS64_CX;
14617 first_iocbq->iocb.un.rcvels.parmRo =
14618 sli4_did_from_fc_hdr(fc_hdr);
14619 first_iocbq->iocb.ulpPU = PARM_NPIV_DID;
14621 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
14622 first_iocbq->iocb.ulpContext = NO_XRI;
14623 first_iocbq->iocb.unsli3.rcvsli3.ox_id =
14624 be16_to_cpu(fc_hdr->fh_ox_id);
14625 /* iocbq is prepped for internal consumption. Physical vpi. */
14626 first_iocbq->iocb.unsli3.rcvsli3.vpi =
14627 vport->phba->vpi_ids[vport->vpi];
14628 /* put the first buffer into the first IOCBq */
14629 first_iocbq->context2 = &seq_dmabuf->dbuf;
14630 first_iocbq->context3 = NULL;
14631 first_iocbq->iocb.ulpBdeCount = 1;
14632 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
14633 LPFC_DATA_BUF_SIZE;
14634 first_iocbq->iocb.un.rcvels.remoteID = sid;
14635 tot_len = bf_get(lpfc_rcqe_length,
14636 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
14637 first_iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
14639 iocbq = first_iocbq;
14641 * Each IOCBq can have two Buffers assigned, so go through the list
14642 * of buffers for this sequence and save two buffers in each IOCBq
14644 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
14646 lpfc_in_buf_free(vport->phba, d_buf);
14649 if (!iocbq->context3) {
14650 iocbq->context3 = d_buf;
14651 iocbq->iocb.ulpBdeCount++;
14652 pbde = (struct ulp_bde64 *)
14653 &iocbq->iocb.unsli3.sli3Words[4];
14654 pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
14656 /* We need to get the size out of the right CQE */
14657 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14658 len = bf_get(lpfc_rcqe_length,
14659 &hbq_buf->cq_event.cqe.rcqe_cmpl);
14660 iocbq->iocb.unsli3.rcvsli3.acc_len += len;
14663 iocbq = lpfc_sli_get_iocbq(vport->phba);
14666 first_iocbq->iocb.ulpStatus =
14667 IOSTAT_FCP_RSP_ERROR;
14668 first_iocbq->iocb.un.ulpWord[4] =
14669 IOERR_NO_RESOURCES;
14671 lpfc_in_buf_free(vport->phba, d_buf);
14674 iocbq->context2 = d_buf;
14675 iocbq->context3 = NULL;
14676 iocbq->iocb.ulpBdeCount = 1;
14677 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
14678 LPFC_DATA_BUF_SIZE;
14680 /* We need to get the size out of the right CQE */
14681 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14682 len = bf_get(lpfc_rcqe_length,
14683 &hbq_buf->cq_event.cqe.rcqe_cmpl);
14685 iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
14687 iocbq->iocb.un.rcvels.remoteID = sid;
14688 list_add_tail(&iocbq->list, &first_iocbq->list);
14691 return first_iocbq;
14695 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
14696 struct hbq_dmabuf *seq_dmabuf)
14698 struct fc_frame_header *fc_hdr;
14699 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
14700 struct lpfc_hba *phba = vport->phba;
14702 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
14703 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
14705 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14706 "2707 Ring %d handler: Failed to allocate "
14707 "iocb Rctl x%x Type x%x received\n",
14709 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
14712 if (!lpfc_complete_unsol_iocb(phba,
14713 &phba->sli.ring[LPFC_ELS_RING],
14714 iocbq, fc_hdr->fh_r_ctl,
14716 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14717 "2540 Ring %d handler: unexpected Rctl "
14718 "x%x Type x%x received\n",
14720 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
14722 /* Free iocb created in lpfc_prep_seq */
14723 list_for_each_entry_safe(curr_iocb, next_iocb,
14724 &iocbq->list, list) {
14725 list_del_init(&curr_iocb->list);
14726 lpfc_sli_release_iocbq(phba, curr_iocb);
14728 lpfc_sli_release_iocbq(phba, iocbq);
14732 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
14733 * @phba: Pointer to HBA context object.
14735 * This function is called with no lock held. This function processes all
14736 * the received buffers and gives it to upper layers when a received buffer
14737 * indicates that it is the final frame in the sequence. The interrupt
14738 * service routine processes received buffers at interrupt contexts and adds
14739 * received dma buffers to the rb_pend_list queue and signals the worker thread.
14740 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
14741 * appropriate receive function when the final frame in a sequence is received.
14744 lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
14745 struct hbq_dmabuf *dmabuf)
14747 struct hbq_dmabuf *seq_dmabuf;
14748 struct fc_frame_header *fc_hdr;
14749 struct lpfc_vport *vport;
14753 /* Process each received buffer */
14754 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14755 /* check to see if this a valid type of frame */
14756 if (lpfc_fc_frame_check(phba, fc_hdr)) {
14757 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14760 if ((bf_get(lpfc_cqe_code,
14761 &dmabuf->cq_event.cqe.rcqe_cmpl) == CQE_CODE_RECEIVE_V1))
14762 fcfi = bf_get(lpfc_rcqe_fcf_id_v1,
14763 &dmabuf->cq_event.cqe.rcqe_cmpl);
14765 fcfi = bf_get(lpfc_rcqe_fcf_id,
14766 &dmabuf->cq_event.cqe.rcqe_cmpl);
14768 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi);
14770 /* throw out the frame */
14771 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14775 /* d_id this frame is directed to */
14776 did = sli4_did_from_fc_hdr(fc_hdr);
14778 /* vport is registered unless we rcv a FLOGI directed to Fabric_DID */
14779 if (!(vport->vpi_state & LPFC_VPI_REGISTERED) &&
14780 (did != Fabric_DID)) {
14782 * Throw out the frame if we are not pt2pt.
14783 * The pt2pt protocol allows for discovery frames
14784 * to be received without a registered VPI.
14786 if (!(vport->fc_flag & FC_PT2PT) ||
14787 (phba->link_state == LPFC_HBA_READY)) {
14788 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14793 /* Handle the basic abort sequence (BA_ABTS) event */
14794 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
14795 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
14799 /* Link this frame */
14800 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
14802 /* unable to add frame to vport - throw it out */
14803 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14806 /* If not last frame in sequence continue processing frames. */
14807 if (!lpfc_seq_complete(seq_dmabuf))
14810 /* Send the complete sequence to the upper layer protocol */
14811 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
14815 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
14816 * @phba: pointer to lpfc hba data structure.
14818 * This routine is invoked to post rpi header templates to the
14819 * HBA consistent with the SLI-4 interface spec. This routine
14820 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
14821 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
14823 * This routine does not require any locks. It's usage is expected
14824 * to be driver load or reset recovery when the driver is
14829 * -EIO - The mailbox failed to complete successfully.
14830 * When this error occurs, the driver is not guaranteed
14831 * to have any rpi regions posted to the device and
14832 * must either attempt to repost the regions or take a
14836 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
14838 struct lpfc_rpi_hdr *rpi_page;
14842 /* SLI4 ports that support extents do not require RPI headers. */
14843 if (!phba->sli4_hba.rpi_hdrs_in_use)
14845 if (phba->sli4_hba.extents_in_use)
14848 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
14850 * Assign the rpi headers a physical rpi only if the driver
14851 * has not initialized those resources. A port reset only
14852 * needs the headers posted.
14854 if (bf_get(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags) !=
14856 rpi_page->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
14858 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
14859 if (rc != MBX_SUCCESS) {
14860 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14861 "2008 Error %d posting all rpi "
14869 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags,
14870 LPFC_RPI_RSRC_RDY);
14875 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
14876 * @phba: pointer to lpfc hba data structure.
14877 * @rpi_page: pointer to the rpi memory region.
14879 * This routine is invoked to post a single rpi header to the
14880 * HBA consistent with the SLI-4 interface spec. This memory region
14881 * maps up to 64 rpi context regions.
14885 * -ENOMEM - No available memory
14886 * -EIO - The mailbox failed to complete successfully.
14889 lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
14891 LPFC_MBOXQ_t *mboxq;
14892 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
14894 uint32_t shdr_status, shdr_add_status;
14895 union lpfc_sli4_cfg_shdr *shdr;
14897 /* SLI4 ports that support extents do not require RPI headers. */
14898 if (!phba->sli4_hba.rpi_hdrs_in_use)
14900 if (phba->sli4_hba.extents_in_use)
14903 /* The port is notified of the header region via a mailbox command. */
14904 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14906 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14907 "2001 Unable to allocate memory for issuing "
14908 "SLI_CONFIG_SPECIAL mailbox command\n");
14912 /* Post all rpi memory regions to the port. */
14913 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
14914 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
14915 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
14916 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
14917 sizeof(struct lpfc_sli4_cfg_mhdr),
14918 LPFC_SLI4_MBX_EMBED);
14921 /* Post the physical rpi to the port for this rpi header. */
14922 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
14923 rpi_page->start_rpi);
14924 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
14925 hdr_tmpl, rpi_page->page_count);
14927 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
14928 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
14929 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
14930 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
14931 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14932 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14933 if (rc != MBX_TIMEOUT)
14934 mempool_free(mboxq, phba->mbox_mem_pool);
14935 if (shdr_status || shdr_add_status || rc) {
14936 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14937 "2514 POST_RPI_HDR mailbox failed with "
14938 "status x%x add_status x%x, mbx status x%x\n",
14939 shdr_status, shdr_add_status, rc);
14946 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
14947 * @phba: pointer to lpfc hba data structure.
14949 * This routine is invoked to post rpi header templates to the
14950 * HBA consistent with the SLI-4 interface spec. This routine
14951 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
14952 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
14955 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
14956 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
14959 lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
14962 uint16_t max_rpi, rpi_limit;
14963 uint16_t rpi_remaining, lrpi = 0;
14964 struct lpfc_rpi_hdr *rpi_hdr;
14966 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
14967 rpi_limit = phba->sli4_hba.next_rpi;
14970 * Fetch the next logical rpi. Because this index is logical,
14971 * the driver starts at 0 each time.
14973 spin_lock_irq(&phba->hbalock);
14974 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, 0);
14975 if (rpi >= rpi_limit)
14976 rpi = LPFC_RPI_ALLOC_ERROR;
14978 set_bit(rpi, phba->sli4_hba.rpi_bmask);
14979 phba->sli4_hba.max_cfg_param.rpi_used++;
14980 phba->sli4_hba.rpi_count++;
14984 * Don't try to allocate more rpi header regions if the device limit
14985 * has been exhausted.
14987 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
14988 (phba->sli4_hba.rpi_count >= max_rpi)) {
14989 spin_unlock_irq(&phba->hbalock);
14994 * RPI header postings are not required for SLI4 ports capable of
14997 if (!phba->sli4_hba.rpi_hdrs_in_use) {
14998 spin_unlock_irq(&phba->hbalock);
15003 * If the driver is running low on rpi resources, allocate another
15004 * page now. Note that the next_rpi value is used because
15005 * it represents how many are actually in use whereas max_rpi notes
15006 * how many are supported max by the device.
15008 rpi_remaining = phba->sli4_hba.next_rpi - phba->sli4_hba.rpi_count;
15009 spin_unlock_irq(&phba->hbalock);
15010 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
15011 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
15013 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15014 "2002 Error Could not grow rpi "
15017 lrpi = rpi_hdr->start_rpi;
15018 rpi_hdr->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
15019 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
15027 * lpfc_sli4_free_rpi - Release an rpi for reuse.
15028 * @phba: pointer to lpfc hba data structure.
15030 * This routine is invoked to release an rpi to the pool of
15031 * available rpis maintained by the driver.
15034 __lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
15036 if (test_and_clear_bit(rpi, phba->sli4_hba.rpi_bmask)) {
15037 phba->sli4_hba.rpi_count--;
15038 phba->sli4_hba.max_cfg_param.rpi_used--;
15043 * lpfc_sli4_free_rpi - Release an rpi for reuse.
15044 * @phba: pointer to lpfc hba data structure.
15046 * This routine is invoked to release an rpi to the pool of
15047 * available rpis maintained by the driver.
15050 lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
15052 spin_lock_irq(&phba->hbalock);
15053 __lpfc_sli4_free_rpi(phba, rpi);
15054 spin_unlock_irq(&phba->hbalock);
15058 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
15059 * @phba: pointer to lpfc hba data structure.
15061 * This routine is invoked to remove the memory region that
15062 * provided rpi via a bitmask.
15065 lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
15067 kfree(phba->sli4_hba.rpi_bmask);
15068 kfree(phba->sli4_hba.rpi_ids);
15069 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
15073 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
15074 * @phba: pointer to lpfc hba data structure.
15076 * This routine is invoked to remove the memory region that
15077 * provided rpi via a bitmask.
15080 lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp,
15081 void (*cmpl)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *arg)
15083 LPFC_MBOXQ_t *mboxq;
15084 struct lpfc_hba *phba = ndlp->phba;
15087 /* The port is notified of the header region via a mailbox command. */
15088 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15092 /* Post all rpi memory regions to the port. */
15093 lpfc_resume_rpi(mboxq, ndlp);
15095 mboxq->mbox_cmpl = cmpl;
15096 mboxq->context1 = arg;
15097 mboxq->context2 = ndlp;
15099 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15100 mboxq->vport = ndlp->vport;
15101 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15102 if (rc == MBX_NOT_FINISHED) {
15103 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15104 "2010 Resume RPI Mailbox failed "
15105 "status %d, mbxStatus x%x\n", rc,
15106 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
15107 mempool_free(mboxq, phba->mbox_mem_pool);
15114 * lpfc_sli4_init_vpi - Initialize a vpi with the port
15115 * @vport: Pointer to the vport for which the vpi is being initialized
15117 * This routine is invoked to activate a vpi with the port.
15121 * -Evalue otherwise
15124 lpfc_sli4_init_vpi(struct lpfc_vport *vport)
15126 LPFC_MBOXQ_t *mboxq;
15128 int retval = MBX_SUCCESS;
15130 struct lpfc_hba *phba = vport->phba;
15131 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15134 lpfc_init_vpi(phba, mboxq, vport->vpi);
15135 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
15136 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
15137 if (rc != MBX_SUCCESS) {
15138 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
15139 "2022 INIT VPI Mailbox failed "
15140 "status %d, mbxStatus x%x\n", rc,
15141 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
15144 if (rc != MBX_TIMEOUT)
15145 mempool_free(mboxq, vport->phba->mbox_mem_pool);
15151 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
15152 * @phba: pointer to lpfc hba data structure.
15153 * @mboxq: Pointer to mailbox object.
15155 * This routine is invoked to manually add a single FCF record. The caller
15156 * must pass a completely initialized FCF_Record. This routine takes
15157 * care of the nonembedded mailbox operations.
15160 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
15163 union lpfc_sli4_cfg_shdr *shdr;
15164 uint32_t shdr_status, shdr_add_status;
15166 virt_addr = mboxq->sge_array->addr[0];
15167 /* The IOCTL status is embedded in the mailbox subheader. */
15168 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
15169 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15170 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15172 if ((shdr_status || shdr_add_status) &&
15173 (shdr_status != STATUS_FCF_IN_USE))
15174 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15175 "2558 ADD_FCF_RECORD mailbox failed with "
15176 "status x%x add_status x%x\n",
15177 shdr_status, shdr_add_status);
15179 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15183 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
15184 * @phba: pointer to lpfc hba data structure.
15185 * @fcf_record: pointer to the initialized fcf record to add.
15187 * This routine is invoked to manually add a single FCF record. The caller
15188 * must pass a completely initialized FCF_Record. This routine takes
15189 * care of the nonembedded mailbox operations.
15192 lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
15195 LPFC_MBOXQ_t *mboxq;
15198 dma_addr_t phys_addr;
15199 struct lpfc_mbx_sge sge;
15200 uint32_t alloc_len, req_len;
15203 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15205 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15206 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
15210 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
15213 /* Allocate DMA memory and set up the non-embedded mailbox command */
15214 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
15215 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
15216 req_len, LPFC_SLI4_MBX_NEMBED);
15217 if (alloc_len < req_len) {
15218 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15219 "2523 Allocated DMA memory size (x%x) is "
15220 "less than the requested DMA memory "
15221 "size (x%x)\n", alloc_len, req_len);
15222 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15227 * Get the first SGE entry from the non-embedded DMA memory. This
15228 * routine only uses a single SGE.
15230 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
15231 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
15232 virt_addr = mboxq->sge_array->addr[0];
15234 * Configure the FCF record for FCFI 0. This is the driver's
15235 * hardcoded default and gets used in nonFIP mode.
15237 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
15238 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
15239 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
15242 * Copy the fcf_index and the FCF Record Data. The data starts after
15243 * the FCoE header plus word10. The data copy needs to be endian
15246 bytep += sizeof(uint32_t);
15247 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
15248 mboxq->vport = phba->pport;
15249 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
15250 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15251 if (rc == MBX_NOT_FINISHED) {
15252 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15253 "2515 ADD_FCF_RECORD mailbox failed with "
15254 "status 0x%x\n", rc);
15255 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15264 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
15265 * @phba: pointer to lpfc hba data structure.
15266 * @fcf_record: pointer to the fcf record to write the default data.
15267 * @fcf_index: FCF table entry index.
15269 * This routine is invoked to build the driver's default FCF record. The
15270 * values used are hardcoded. This routine handles memory initialization.
15274 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
15275 struct fcf_record *fcf_record,
15276 uint16_t fcf_index)
15278 memset(fcf_record, 0, sizeof(struct fcf_record));
15279 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
15280 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
15281 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
15282 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
15283 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
15284 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
15285 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
15286 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
15287 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
15288 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
15289 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
15290 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
15291 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
15292 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
15293 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
15294 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
15295 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
15296 /* Set the VLAN bit map */
15297 if (phba->valid_vlan) {
15298 fcf_record->vlan_bitmap[phba->vlan_id / 8]
15299 = 1 << (phba->vlan_id % 8);
15304 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
15305 * @phba: pointer to lpfc hba data structure.
15306 * @fcf_index: FCF table entry offset.
15308 * This routine is invoked to scan the entire FCF table by reading FCF
15309 * record and processing it one at a time starting from the @fcf_index
15310 * for initial FCF discovery or fast FCF failover rediscovery.
15312 * Return 0 if the mailbox command is submitted successfully, none 0
15316 lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
15319 LPFC_MBOXQ_t *mboxq;
15321 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
15322 phba->fcoe_cvl_eventtag_attn = phba->fcoe_cvl_eventtag;
15323 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15325 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15326 "2000 Failed to allocate mbox for "
15329 goto fail_fcf_scan;
15331 /* Construct the read FCF record mailbox command */
15332 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
15335 goto fail_fcf_scan;
15337 /* Issue the mailbox command asynchronously */
15338 mboxq->vport = phba->pport;
15339 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
15341 spin_lock_irq(&phba->hbalock);
15342 phba->hba_flag |= FCF_TS_INPROG;
15343 spin_unlock_irq(&phba->hbalock);
15345 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15346 if (rc == MBX_NOT_FINISHED)
15349 /* Reset eligible FCF count for new scan */
15350 if (fcf_index == LPFC_FCOE_FCF_GET_FIRST)
15351 phba->fcf.eligible_fcf_cnt = 0;
15357 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15358 /* FCF scan failed, clear FCF_TS_INPROG flag */
15359 spin_lock_irq(&phba->hbalock);
15360 phba->hba_flag &= ~FCF_TS_INPROG;
15361 spin_unlock_irq(&phba->hbalock);
15367 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
15368 * @phba: pointer to lpfc hba data structure.
15369 * @fcf_index: FCF table entry offset.
15371 * This routine is invoked to read an FCF record indicated by @fcf_index
15372 * and to use it for FLOGI roundrobin FCF failover.
15374 * Return 0 if the mailbox command is submitted successfully, none 0
15378 lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
15381 LPFC_MBOXQ_t *mboxq;
15383 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15385 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
15386 "2763 Failed to allocate mbox for "
15389 goto fail_fcf_read;
15391 /* Construct the read FCF record mailbox command */
15392 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
15395 goto fail_fcf_read;
15397 /* Issue the mailbox command asynchronously */
15398 mboxq->vport = phba->pport;
15399 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
15400 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15401 if (rc == MBX_NOT_FINISHED)
15407 if (error && mboxq)
15408 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15413 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
15414 * @phba: pointer to lpfc hba data structure.
15415 * @fcf_index: FCF table entry offset.
15417 * This routine is invoked to read an FCF record indicated by @fcf_index to
15418 * determine whether it's eligible for FLOGI roundrobin failover list.
15420 * Return 0 if the mailbox command is submitted successfully, none 0
15424 lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
15427 LPFC_MBOXQ_t *mboxq;
15429 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15431 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
15432 "2758 Failed to allocate mbox for "
15435 goto fail_fcf_read;
15437 /* Construct the read FCF record mailbox command */
15438 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
15441 goto fail_fcf_read;
15443 /* Issue the mailbox command asynchronously */
15444 mboxq->vport = phba->pport;
15445 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
15446 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15447 if (rc == MBX_NOT_FINISHED)
15453 if (error && mboxq)
15454 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15459 * lpfc_check_next_fcf_pri
15460 * phba pointer to the lpfc_hba struct for this port.
15461 * This routine is called from the lpfc_sli4_fcf_rr_next_index_get
15462 * routine when the rr_bmask is empty. The FCF indecies are put into the
15463 * rr_bmask based on their priority level. Starting from the highest priority
15464 * to the lowest. The most likely FCF candidate will be in the highest
15465 * priority group. When this routine is called it searches the fcf_pri list for
15466 * next lowest priority group and repopulates the rr_bmask with only those
15469 * 1=success 0=failure
15472 lpfc_check_next_fcf_pri_level(struct lpfc_hba *phba)
15474 uint16_t next_fcf_pri;
15475 uint16_t last_index;
15476 struct lpfc_fcf_pri *fcf_pri;
15480 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
15481 LPFC_SLI4_FCF_TBL_INDX_MAX);
15482 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15483 "3060 Last IDX %d\n", last_index);
15484 if (list_empty(&phba->fcf.fcf_pri_list)) {
15485 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
15486 "3061 Last IDX %d\n", last_index);
15487 return 0; /* Empty rr list */
15491 * Clear the rr_bmask and set all of the bits that are at this
15494 memset(phba->fcf.fcf_rr_bmask, 0,
15495 sizeof(*phba->fcf.fcf_rr_bmask));
15496 spin_lock_irq(&phba->hbalock);
15497 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
15498 if (fcf_pri->fcf_rec.flag & LPFC_FCF_FLOGI_FAILED)
15501 * the 1st priority that has not FLOGI failed
15502 * will be the highest.
15505 next_fcf_pri = fcf_pri->fcf_rec.priority;
15506 spin_unlock_irq(&phba->hbalock);
15507 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
15508 rc = lpfc_sli4_fcf_rr_index_set(phba,
15509 fcf_pri->fcf_rec.fcf_index);
15513 spin_lock_irq(&phba->hbalock);
15516 * if next_fcf_pri was not set above and the list is not empty then
15517 * we have failed flogis on all of them. So reset flogi failed
15518 * and start at the beginning.
15520 if (!next_fcf_pri && !list_empty(&phba->fcf.fcf_pri_list)) {
15521 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
15522 fcf_pri->fcf_rec.flag &= ~LPFC_FCF_FLOGI_FAILED;
15524 * the 1st priority that has not FLOGI failed
15525 * will be the highest.
15528 next_fcf_pri = fcf_pri->fcf_rec.priority;
15529 spin_unlock_irq(&phba->hbalock);
15530 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
15531 rc = lpfc_sli4_fcf_rr_index_set(phba,
15532 fcf_pri->fcf_rec.fcf_index);
15536 spin_lock_irq(&phba->hbalock);
15540 spin_unlock_irq(&phba->hbalock);
15545 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
15546 * @phba: pointer to lpfc hba data structure.
15548 * This routine is to get the next eligible FCF record index in a round
15549 * robin fashion. If the next eligible FCF record index equals to the
15550 * initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
15551 * shall be returned, otherwise, the next eligible FCF record's index
15552 * shall be returned.
15555 lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
15557 uint16_t next_fcf_index;
15560 /* Search start from next bit of currently registered FCF index */
15561 next_fcf_index = phba->fcf.current_rec.fcf_indx;
15564 /* Determine the next fcf index to check */
15565 next_fcf_index = (next_fcf_index + 1) % LPFC_SLI4_FCF_TBL_INDX_MAX;
15566 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
15567 LPFC_SLI4_FCF_TBL_INDX_MAX,
15570 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
15571 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
15573 * If we have wrapped then we need to clear the bits that
15574 * have been tested so that we can detect when we should
15575 * change the priority level.
15577 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
15578 LPFC_SLI4_FCF_TBL_INDX_MAX, 0);
15582 /* Check roundrobin failover list empty condition */
15583 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX ||
15584 next_fcf_index == phba->fcf.current_rec.fcf_indx) {
15586 * If next fcf index is not found check if there are lower
15587 * Priority level fcf's in the fcf_priority list.
15588 * Set up the rr_bmask with all of the avaiable fcf bits
15589 * at that level and continue the selection process.
15591 if (lpfc_check_next_fcf_pri_level(phba))
15592 goto initial_priority;
15593 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
15594 "2844 No roundrobin failover FCF available\n");
15595 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX)
15596 return LPFC_FCOE_FCF_NEXT_NONE;
15598 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
15599 "3063 Only FCF available idx %d, flag %x\n",
15601 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag);
15602 return next_fcf_index;
15606 if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX &&
15607 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag &
15608 LPFC_FCF_FLOGI_FAILED)
15609 goto next_priority;
15611 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15612 "2845 Get next roundrobin failover FCF (x%x)\n",
15615 return next_fcf_index;
15619 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
15620 * @phba: pointer to lpfc hba data structure.
15622 * This routine sets the FCF record index in to the eligible bmask for
15623 * roundrobin failover search. It checks to make sure that the index
15624 * does not go beyond the range of the driver allocated bmask dimension
15625 * before setting the bit.
15627 * Returns 0 if the index bit successfully set, otherwise, it returns
15631 lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
15633 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
15634 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
15635 "2610 FCF (x%x) reached driver's book "
15636 "keeping dimension:x%x\n",
15637 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
15640 /* Set the eligible FCF record index bmask */
15641 set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
15643 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15644 "2790 Set FCF (x%x) to roundrobin FCF failover "
15645 "bmask\n", fcf_index);
15651 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
15652 * @phba: pointer to lpfc hba data structure.
15654 * This routine clears the FCF record index from the eligible bmask for
15655 * roundrobin failover search. It checks to make sure that the index
15656 * does not go beyond the range of the driver allocated bmask dimension
15657 * before clearing the bit.
15660 lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
15662 struct lpfc_fcf_pri *fcf_pri;
15663 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
15664 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
15665 "2762 FCF (x%x) reached driver's book "
15666 "keeping dimension:x%x\n",
15667 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
15670 /* Clear the eligible FCF record index bmask */
15671 spin_lock_irq(&phba->hbalock);
15672 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
15673 if (fcf_pri->fcf_rec.fcf_index == fcf_index) {
15674 list_del_init(&fcf_pri->list);
15678 spin_unlock_irq(&phba->hbalock);
15679 clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
15681 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15682 "2791 Clear FCF (x%x) from roundrobin failover "
15683 "bmask\n", fcf_index);
15687 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
15688 * @phba: pointer to lpfc hba data structure.
15690 * This routine is the completion routine for the rediscover FCF table mailbox
15691 * command. If the mailbox command returned failure, it will try to stop the
15692 * FCF rediscover wait timer.
15695 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
15697 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
15698 uint32_t shdr_status, shdr_add_status;
15700 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
15702 shdr_status = bf_get(lpfc_mbox_hdr_status,
15703 &redisc_fcf->header.cfg_shdr.response);
15704 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
15705 &redisc_fcf->header.cfg_shdr.response);
15706 if (shdr_status || shdr_add_status) {
15707 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
15708 "2746 Requesting for FCF rediscovery failed "
15709 "status x%x add_status x%x\n",
15710 shdr_status, shdr_add_status);
15711 if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
15712 spin_lock_irq(&phba->hbalock);
15713 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
15714 spin_unlock_irq(&phba->hbalock);
15716 * CVL event triggered FCF rediscover request failed,
15717 * last resort to re-try current registered FCF entry.
15719 lpfc_retry_pport_discovery(phba);
15721 spin_lock_irq(&phba->hbalock);
15722 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
15723 spin_unlock_irq(&phba->hbalock);
15725 * DEAD FCF event triggered FCF rediscover request
15726 * failed, last resort to fail over as a link down
15727 * to FCF registration.
15729 lpfc_sli4_fcf_dead_failthrough(phba);
15732 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15733 "2775 Start FCF rediscover quiescent timer\n");
15735 * Start FCF rediscovery wait timer for pending FCF
15736 * before rescan FCF record table.
15738 lpfc_fcf_redisc_wait_start_timer(phba);
15741 mempool_free(mbox, phba->mbox_mem_pool);
15745 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
15746 * @phba: pointer to lpfc hba data structure.
15748 * This routine is invoked to request for rediscovery of the entire FCF table
15752 lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
15754 LPFC_MBOXQ_t *mbox;
15755 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
15758 /* Cancel retry delay timers to all vports before FCF rediscover */
15759 lpfc_cancel_all_vport_retry_delay_timer(phba);
15761 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15763 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15764 "2745 Failed to allocate mbox for "
15765 "requesting FCF rediscover.\n");
15769 length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
15770 sizeof(struct lpfc_sli4_cfg_mhdr));
15771 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15772 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
15773 length, LPFC_SLI4_MBX_EMBED);
15775 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
15776 /* Set count to 0 for invalidating the entire FCF database */
15777 bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
15779 /* Issue the mailbox command asynchronously */
15780 mbox->vport = phba->pport;
15781 mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
15782 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
15784 if (rc == MBX_NOT_FINISHED) {
15785 mempool_free(mbox, phba->mbox_mem_pool);
15792 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
15793 * @phba: pointer to lpfc hba data structure.
15795 * This function is the failover routine as a last resort to the FCF DEAD
15796 * event when driver failed to perform fast FCF failover.
15799 lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
15801 uint32_t link_state;
15804 * Last resort as FCF DEAD event failover will treat this as
15805 * a link down, but save the link state because we don't want
15806 * it to be changed to Link Down unless it is already down.
15808 link_state = phba->link_state;
15809 lpfc_linkdown(phba);
15810 phba->link_state = link_state;
15812 /* Unregister FCF if no devices connected to it */
15813 lpfc_unregister_unused_fcf(phba);
15817 * lpfc_sli_get_config_region23 - Get sli3 port region 23 data.
15818 * @phba: pointer to lpfc hba data structure.
15819 * @rgn23_data: pointer to configure region 23 data.
15821 * This function gets SLI3 port configure region 23 data through memory dump
15822 * mailbox command. When it successfully retrieves data, the size of the data
15823 * will be returned, otherwise, 0 will be returned.
15826 lpfc_sli_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
15828 LPFC_MBOXQ_t *pmb = NULL;
15830 uint32_t offset = 0;
15836 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15838 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15839 "2600 failed to allocate mailbox memory\n");
15845 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
15846 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
15848 if (rc != MBX_SUCCESS) {
15849 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15850 "2601 failed to read config "
15851 "region 23, rc 0x%x Status 0x%x\n",
15852 rc, mb->mbxStatus);
15853 mb->un.varDmp.word_cnt = 0;
15856 * dump mem may return a zero when finished or we got a
15857 * mailbox error, either way we are done.
15859 if (mb->un.varDmp.word_cnt == 0)
15861 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
15862 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
15864 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
15865 rgn23_data + offset,
15866 mb->un.varDmp.word_cnt);
15867 offset += mb->un.varDmp.word_cnt;
15868 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
15870 mempool_free(pmb, phba->mbox_mem_pool);
15875 * lpfc_sli4_get_config_region23 - Get sli4 port region 23 data.
15876 * @phba: pointer to lpfc hba data structure.
15877 * @rgn23_data: pointer to configure region 23 data.
15879 * This function gets SLI4 port configure region 23 data through memory dump
15880 * mailbox command. When it successfully retrieves data, the size of the data
15881 * will be returned, otherwise, 0 will be returned.
15884 lpfc_sli4_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
15886 LPFC_MBOXQ_t *mboxq = NULL;
15887 struct lpfc_dmabuf *mp = NULL;
15888 struct lpfc_mqe *mqe;
15889 uint32_t data_length = 0;
15895 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15897 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15898 "3105 failed to allocate mailbox memory\n");
15902 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq))
15904 mqe = &mboxq->u.mqe;
15905 mp = (struct lpfc_dmabuf *) mboxq->context1;
15906 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
15909 data_length = mqe->un.mb_words[5];
15910 if (data_length == 0)
15912 if (data_length > DMP_RGN23_SIZE) {
15916 lpfc_sli_pcimem_bcopy((char *)mp->virt, rgn23_data, data_length);
15918 mempool_free(mboxq, phba->mbox_mem_pool);
15920 lpfc_mbuf_free(phba, mp->virt, mp->phys);
15923 return data_length;
15927 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
15928 * @phba: pointer to lpfc hba data structure.
15930 * This function read region 23 and parse TLV for port status to
15931 * decide if the user disaled the port. If the TLV indicates the
15932 * port is disabled, the hba_flag is set accordingly.
15935 lpfc_sli_read_link_ste(struct lpfc_hba *phba)
15937 uint8_t *rgn23_data = NULL;
15938 uint32_t if_type, data_size, sub_tlv_len, tlv_offset;
15939 uint32_t offset = 0;
15941 /* Get adapter Region 23 data */
15942 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
15946 if (phba->sli_rev < LPFC_SLI_REV4)
15947 data_size = lpfc_sli_get_config_region23(phba, rgn23_data);
15949 if_type = bf_get(lpfc_sli_intf_if_type,
15950 &phba->sli4_hba.sli_intf);
15951 if (if_type == LPFC_SLI_INTF_IF_TYPE_0)
15953 data_size = lpfc_sli4_get_config_region23(phba, rgn23_data);
15959 /* Check the region signature first */
15960 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
15961 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15962 "2619 Config region 23 has bad signature\n");
15967 /* Check the data structure version */
15968 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
15969 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15970 "2620 Config region 23 has bad version\n");
15975 /* Parse TLV entries in the region */
15976 while (offset < data_size) {
15977 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
15980 * If the TLV is not driver specific TLV or driver id is
15981 * not linux driver id, skip the record.
15983 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
15984 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
15985 (rgn23_data[offset + 3] != 0)) {
15986 offset += rgn23_data[offset + 1] * 4 + 4;
15990 /* Driver found a driver specific TLV in the config region */
15991 sub_tlv_len = rgn23_data[offset + 1] * 4;
15996 * Search for configured port state sub-TLV.
15998 while ((offset < data_size) &&
15999 (tlv_offset < sub_tlv_len)) {
16000 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
16005 if (rgn23_data[offset] != PORT_STE_TYPE) {
16006 offset += rgn23_data[offset + 1] * 4 + 4;
16007 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
16011 /* This HBA contains PORT_STE configured */
16012 if (!rgn23_data[offset + 2])
16013 phba->hba_flag |= LINK_DISABLED;
16025 * lpfc_wr_object - write an object to the firmware
16026 * @phba: HBA structure that indicates port to create a queue on.
16027 * @dmabuf_list: list of dmabufs to write to the port.
16028 * @size: the total byte value of the objects to write to the port.
16029 * @offset: the current offset to be used to start the transfer.
16031 * This routine will create a wr_object mailbox command to send to the port.
16032 * the mailbox command will be constructed using the dma buffers described in
16033 * @dmabuf_list to create a list of BDEs. This routine will fill in as many
16034 * BDEs that the imbedded mailbox can support. The @offset variable will be
16035 * used to indicate the starting offset of the transfer and will also return
16036 * the offset after the write object mailbox has completed. @size is used to
16037 * determine the end of the object and whether the eof bit should be set.
16039 * Return 0 is successful and offset will contain the the new offset to use
16040 * for the next write.
16041 * Return negative value for error cases.
16044 lpfc_wr_object(struct lpfc_hba *phba, struct list_head *dmabuf_list,
16045 uint32_t size, uint32_t *offset)
16047 struct lpfc_mbx_wr_object *wr_object;
16048 LPFC_MBOXQ_t *mbox;
16050 uint32_t shdr_status, shdr_add_status;
16052 union lpfc_sli4_cfg_shdr *shdr;
16053 struct lpfc_dmabuf *dmabuf;
16054 uint32_t written = 0;
16056 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16060 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16061 LPFC_MBOX_OPCODE_WRITE_OBJECT,
16062 sizeof(struct lpfc_mbx_wr_object) -
16063 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
16065 wr_object = (struct lpfc_mbx_wr_object *)&mbox->u.mqe.un.wr_object;
16066 wr_object->u.request.write_offset = *offset;
16067 sprintf((uint8_t *)wr_object->u.request.object_name, "/");
16068 wr_object->u.request.object_name[0] =
16069 cpu_to_le32(wr_object->u.request.object_name[0]);
16070 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 0);
16071 list_for_each_entry(dmabuf, dmabuf_list, list) {
16072 if (i >= LPFC_MBX_WR_CONFIG_MAX_BDE || written >= size)
16074 wr_object->u.request.bde[i].addrLow = putPaddrLow(dmabuf->phys);
16075 wr_object->u.request.bde[i].addrHigh =
16076 putPaddrHigh(dmabuf->phys);
16077 if (written + SLI4_PAGE_SIZE >= size) {
16078 wr_object->u.request.bde[i].tus.f.bdeSize =
16080 written += (size - written);
16081 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 1);
16083 wr_object->u.request.bde[i].tus.f.bdeSize =
16085 written += SLI4_PAGE_SIZE;
16089 wr_object->u.request.bde_count = i;
16090 bf_set(lpfc_wr_object_write_length, &wr_object->u.request, written);
16091 if (!phba->sli4_hba.intr_enable)
16092 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16094 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
16095 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16097 /* The IOCTL status is embedded in the mailbox subheader. */
16098 shdr = (union lpfc_sli4_cfg_shdr *) &wr_object->header.cfg_shdr;
16099 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16100 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16101 if (rc != MBX_TIMEOUT)
16102 mempool_free(mbox, phba->mbox_mem_pool);
16103 if (shdr_status || shdr_add_status || rc) {
16104 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16105 "3025 Write Object mailbox failed with "
16106 "status x%x add_status x%x, mbx status x%x\n",
16107 shdr_status, shdr_add_status, rc);
16110 *offset += wr_object->u.response.actual_write_length;
16115 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
16116 * @vport: pointer to vport data structure.
16118 * This function iterate through the mailboxq and clean up all REG_LOGIN
16119 * and REG_VPI mailbox commands associated with the vport. This function
16120 * is called when driver want to restart discovery of the vport due to
16121 * a Clear Virtual Link event.
16124 lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
16126 struct lpfc_hba *phba = vport->phba;
16127 LPFC_MBOXQ_t *mb, *nextmb;
16128 struct lpfc_dmabuf *mp;
16129 struct lpfc_nodelist *ndlp;
16130 struct lpfc_nodelist *act_mbx_ndlp = NULL;
16131 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
16132 LIST_HEAD(mbox_cmd_list);
16133 uint8_t restart_loop;
16135 /* Clean up internally queued mailbox commands with the vport */
16136 spin_lock_irq(&phba->hbalock);
16137 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
16138 if (mb->vport != vport)
16141 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
16142 (mb->u.mb.mbxCommand != MBX_REG_VPI))
16145 list_del(&mb->list);
16146 list_add_tail(&mb->list, &mbox_cmd_list);
16148 /* Clean up active mailbox command with the vport */
16149 mb = phba->sli.mbox_active;
16150 if (mb && (mb->vport == vport)) {
16151 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
16152 (mb->u.mb.mbxCommand == MBX_REG_VPI))
16153 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16154 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
16155 act_mbx_ndlp = (struct lpfc_nodelist *)mb->context2;
16156 /* Put reference count for delayed processing */
16157 act_mbx_ndlp = lpfc_nlp_get(act_mbx_ndlp);
16158 /* Unregister the RPI when mailbox complete */
16159 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
16162 /* Cleanup any mailbox completions which are not yet processed */
16165 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
16167 * If this mailox is already processed or it is
16168 * for another vport ignore it.
16170 if ((mb->vport != vport) ||
16171 (mb->mbox_flag & LPFC_MBX_IMED_UNREG))
16174 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
16175 (mb->u.mb.mbxCommand != MBX_REG_VPI))
16178 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16179 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
16180 ndlp = (struct lpfc_nodelist *)mb->context2;
16181 /* Unregister the RPI when mailbox complete */
16182 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
16184 spin_unlock_irq(&phba->hbalock);
16185 spin_lock(shost->host_lock);
16186 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
16187 spin_unlock(shost->host_lock);
16188 spin_lock_irq(&phba->hbalock);
16192 } while (restart_loop);
16194 spin_unlock_irq(&phba->hbalock);
16196 /* Release the cleaned-up mailbox commands */
16197 while (!list_empty(&mbox_cmd_list)) {
16198 list_remove_head(&mbox_cmd_list, mb, LPFC_MBOXQ_t, list);
16199 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
16200 mp = (struct lpfc_dmabuf *) (mb->context1);
16202 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
16205 ndlp = (struct lpfc_nodelist *) mb->context2;
16206 mb->context2 = NULL;
16208 spin_lock(shost->host_lock);
16209 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
16210 spin_unlock(shost->host_lock);
16211 lpfc_nlp_put(ndlp);
16214 mempool_free(mb, phba->mbox_mem_pool);
16217 /* Release the ndlp with the cleaned-up active mailbox command */
16218 if (act_mbx_ndlp) {
16219 spin_lock(shost->host_lock);
16220 act_mbx_ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
16221 spin_unlock(shost->host_lock);
16222 lpfc_nlp_put(act_mbx_ndlp);
16227 * lpfc_drain_txq - Drain the txq
16228 * @phba: Pointer to HBA context object.
16230 * This function attempt to submit IOCBs on the txq
16231 * to the adapter. For SLI4 adapters, the txq contains
16232 * ELS IOCBs that have been deferred because the there
16233 * are no SGLs. This congestion can occur with large
16234 * vport counts during node discovery.
16238 lpfc_drain_txq(struct lpfc_hba *phba)
16240 LIST_HEAD(completions);
16241 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
16242 struct lpfc_iocbq *piocbq = 0;
16243 unsigned long iflags = 0;
16244 char *fail_msg = NULL;
16245 struct lpfc_sglq *sglq;
16246 union lpfc_wqe wqe;
16248 spin_lock_irqsave(&phba->hbalock, iflags);
16249 if (pring->txq_cnt > pring->txq_max)
16250 pring->txq_max = pring->txq_cnt;
16252 spin_unlock_irqrestore(&phba->hbalock, iflags);
16254 while (pring->txq_cnt) {
16255 spin_lock_irqsave(&phba->hbalock, iflags);
16257 piocbq = lpfc_sli_ringtx_get(phba, pring);
16259 spin_unlock_irqrestore(&phba->hbalock, iflags);
16260 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16261 "2823 txq empty and txq_cnt is %d\n ",
16265 sglq = __lpfc_sli_get_sglq(phba, piocbq);
16267 __lpfc_sli_ringtx_put(phba, pring, piocbq);
16268 spin_unlock_irqrestore(&phba->hbalock, iflags);
16272 /* The xri and iocb resources secured,
16273 * attempt to issue request
16275 piocbq->sli4_lxritag = sglq->sli4_lxritag;
16276 piocbq->sli4_xritag = sglq->sli4_xritag;
16277 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocbq, sglq))
16278 fail_msg = "to convert bpl to sgl";
16279 else if (lpfc_sli4_iocb2wqe(phba, piocbq, &wqe))
16280 fail_msg = "to convert iocb to wqe";
16281 else if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
16282 fail_msg = " - Wq is full";
16284 lpfc_sli_ringtxcmpl_put(phba, pring, piocbq);
16287 /* Failed means we can't issue and need to cancel */
16288 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16289 "2822 IOCB failed %s iotag 0x%x "
16292 piocbq->iotag, piocbq->sli4_xritag);
16293 list_add_tail(&piocbq->list, &completions);
16295 spin_unlock_irqrestore(&phba->hbalock, iflags);
16298 /* Cancel all the IOCBs that cannot be issued */
16299 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
16300 IOERR_SLI_ABORTED);
16302 return pring->txq_cnt;