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 *,
74 lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq)
80 * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
81 * @q: The Work Queue to operate on.
82 * @wqe: The work Queue Entry to put on the Work queue.
84 * This routine will copy the contents of @wqe to the next available entry on
85 * the @q. This function will then ring the Work Queue Doorbell to signal the
86 * HBA to start processing the Work Queue Entry. This function returns 0 if
87 * successful. If no entries are available on @q then this function will return
89 * The caller is expected to hold the hbalock when calling this routine.
92 lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe)
94 union lpfc_wqe *temp_wqe;
95 struct lpfc_register doorbell;
98 /* sanity check on queue memory */
101 temp_wqe = q->qe[q->host_index].wqe;
103 /* If the host has not yet processed the next entry then we are done */
104 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
106 /* set consumption flag every once in a while */
107 if (!((q->host_index + 1) % q->entry_repost))
108 bf_set(wqe_wqec, &wqe->generic.wqe_com, 1);
109 if (q->phba->sli3_options & LPFC_SLI4_PHWQ_ENABLED)
110 bf_set(wqe_wqid, &wqe->generic.wqe_com, q->queue_id);
111 lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size);
113 /* Update the host index before invoking device */
114 host_index = q->host_index;
115 q->host_index = ((q->host_index + 1) % q->entry_count);
119 bf_set(lpfc_wq_doorbell_num_posted, &doorbell, 1);
120 bf_set(lpfc_wq_doorbell_index, &doorbell, host_index);
121 bf_set(lpfc_wq_doorbell_id, &doorbell, q->queue_id);
122 writel(doorbell.word0, q->phba->sli4_hba.WQDBregaddr);
123 readl(q->phba->sli4_hba.WQDBregaddr); /* Flush */
129 * lpfc_sli4_wq_release - Updates internal hba index for WQ
130 * @q: The Work Queue to operate on.
131 * @index: The index to advance the hba index to.
133 * This routine will update the HBA index of a queue to reflect consumption of
134 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
135 * an entry the host calls this function to update the queue's internal
136 * pointers. This routine returns the number of entries that were consumed by
140 lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index)
142 uint32_t released = 0;
144 /* sanity check on queue memory */
148 if (q->hba_index == index)
151 q->hba_index = ((q->hba_index + 1) % q->entry_count);
153 } while (q->hba_index != index);
158 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
159 * @q: The Mailbox Queue to operate on.
160 * @wqe: The Mailbox Queue Entry to put on the Work queue.
162 * This routine will copy the contents of @mqe to the next available entry on
163 * the @q. This function will then ring the Work Queue Doorbell to signal the
164 * HBA to start processing the Work Queue Entry. This function returns 0 if
165 * successful. If no entries are available on @q then this function will return
167 * The caller is expected to hold the hbalock when calling this routine.
170 lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
172 struct lpfc_mqe *temp_mqe;
173 struct lpfc_register doorbell;
176 /* sanity check on queue memory */
179 temp_mqe = q->qe[q->host_index].mqe;
181 /* If the host has not yet processed the next entry then we are done */
182 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
184 lpfc_sli_pcimem_bcopy(mqe, temp_mqe, q->entry_size);
185 /* Save off the mailbox pointer for completion */
186 q->phba->mbox = (MAILBOX_t *)temp_mqe;
188 /* Update the host index before invoking device */
189 host_index = q->host_index;
190 q->host_index = ((q->host_index + 1) % q->entry_count);
194 bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1);
195 bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id);
196 writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr);
197 readl(q->phba->sli4_hba.MQDBregaddr); /* Flush */
202 * lpfc_sli4_mq_release - Updates internal hba index for MQ
203 * @q: The Mailbox Queue to operate on.
205 * This routine will update the HBA index of a queue to reflect consumption of
206 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
207 * an entry the host calls this function to update the queue's internal
208 * pointers. This routine returns the number of entries that were consumed by
212 lpfc_sli4_mq_release(struct lpfc_queue *q)
214 /* sanity check on queue memory */
218 /* Clear the mailbox pointer for completion */
219 q->phba->mbox = NULL;
220 q->hba_index = ((q->hba_index + 1) % q->entry_count);
225 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
226 * @q: The Event Queue to get the first valid EQE from
228 * This routine will get the first valid Event Queue Entry from @q, update
229 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
230 * the Queue (no more work to do), or the Queue is full of EQEs that have been
231 * processed, but not popped back to the HBA then this routine will return NULL.
233 static struct lpfc_eqe *
234 lpfc_sli4_eq_get(struct lpfc_queue *q)
236 struct lpfc_eqe *eqe;
238 /* sanity check on queue memory */
241 eqe = q->qe[q->hba_index].eqe;
243 /* If the next EQE is not valid then we are done */
244 if (!bf_get_le32(lpfc_eqe_valid, eqe))
246 /* If the host has not yet processed the next entry then we are done */
247 if (((q->hba_index + 1) % q->entry_count) == q->host_index)
250 q->hba_index = ((q->hba_index + 1) % q->entry_count);
255 * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
256 * @q: The Event Queue that the host has completed processing for.
257 * @arm: Indicates whether the host wants to arms this CQ.
259 * This routine will mark all Event Queue Entries on @q, from the last
260 * known completed entry to the last entry that was processed, as completed
261 * by clearing the valid bit for each completion queue entry. Then it will
262 * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
263 * The internal host index in the @q will be updated by this routine to indicate
264 * that the host has finished processing the entries. The @arm parameter
265 * indicates that the queue should be rearmed when ringing the doorbell.
267 * This function will return the number of EQEs that were popped.
270 lpfc_sli4_eq_release(struct lpfc_queue *q, bool arm)
272 uint32_t released = 0;
273 struct lpfc_eqe *temp_eqe;
274 struct lpfc_register doorbell;
276 /* sanity check on queue memory */
280 /* while there are valid entries */
281 while (q->hba_index != q->host_index) {
282 temp_eqe = q->qe[q->host_index].eqe;
283 bf_set_le32(lpfc_eqe_valid, temp_eqe, 0);
285 q->host_index = ((q->host_index + 1) % q->entry_count);
287 if (unlikely(released == 0 && !arm))
290 /* ring doorbell for number popped */
293 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
294 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
296 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
297 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
298 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
299 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
300 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
301 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
302 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
303 if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
304 readl(q->phba->sli4_hba.EQCQDBregaddr);
309 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
310 * @q: The Completion Queue to get the first valid CQE from
312 * This routine will get the first valid Completion Queue Entry from @q, update
313 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
314 * the Queue (no more work to do), or the Queue is full of CQEs that have been
315 * processed, but not popped back to the HBA then this routine will return NULL.
317 static struct lpfc_cqe *
318 lpfc_sli4_cq_get(struct lpfc_queue *q)
320 struct lpfc_cqe *cqe;
322 /* sanity check on queue memory */
326 /* If the next CQE is not valid then we are done */
327 if (!bf_get_le32(lpfc_cqe_valid, q->qe[q->hba_index].cqe))
329 /* If the host has not yet processed the next entry then we are done */
330 if (((q->hba_index + 1) % q->entry_count) == q->host_index)
333 cqe = q->qe[q->hba_index].cqe;
334 q->hba_index = ((q->hba_index + 1) % q->entry_count);
339 * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ
340 * @q: The Completion Queue that the host has completed processing for.
341 * @arm: Indicates whether the host wants to arms this CQ.
343 * This routine will mark all Completion queue entries on @q, from the last
344 * known completed entry to the last entry that was processed, as completed
345 * by clearing the valid bit for each completion queue entry. Then it will
346 * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
347 * The internal host index in the @q will be updated by this routine to indicate
348 * that the host has finished processing the entries. The @arm parameter
349 * indicates that the queue should be rearmed when ringing the doorbell.
351 * This function will return the number of CQEs that were released.
354 lpfc_sli4_cq_release(struct lpfc_queue *q, bool arm)
356 uint32_t released = 0;
357 struct lpfc_cqe *temp_qe;
358 struct lpfc_register doorbell;
360 /* sanity check on queue memory */
363 /* while there are valid entries */
364 while (q->hba_index != q->host_index) {
365 temp_qe = q->qe[q->host_index].cqe;
366 bf_set_le32(lpfc_cqe_valid, temp_qe, 0);
368 q->host_index = ((q->host_index + 1) % q->entry_count);
370 if (unlikely(released == 0 && !arm))
373 /* ring doorbell for number popped */
376 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
377 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
378 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION);
379 bf_set(lpfc_eqcq_doorbell_cqid_hi, &doorbell,
380 (q->queue_id >> LPFC_CQID_HI_FIELD_SHIFT));
381 bf_set(lpfc_eqcq_doorbell_cqid_lo, &doorbell, q->queue_id);
382 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
387 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
388 * @q: The Header Receive Queue to operate on.
389 * @wqe: The Receive Queue Entry to put on the Receive queue.
391 * This routine will copy the contents of @wqe to the next available entry on
392 * the @q. This function will then ring the Receive Queue Doorbell to signal the
393 * HBA to start processing the Receive Queue Entry. This function returns the
394 * index that the rqe was copied to if successful. If no entries are available
395 * on @q then this function will return -ENOMEM.
396 * The caller is expected to hold the hbalock when calling this routine.
399 lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
400 struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe)
402 struct lpfc_rqe *temp_hrqe;
403 struct lpfc_rqe *temp_drqe;
404 struct lpfc_register doorbell;
405 int put_index = hq->host_index;
407 /* sanity check on queue memory */
408 if (unlikely(!hq) || unlikely(!dq))
410 temp_hrqe = hq->qe[hq->host_index].rqe;
411 temp_drqe = dq->qe[dq->host_index].rqe;
413 if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ)
415 if (hq->host_index != dq->host_index)
417 /* If the host has not yet processed the next entry then we are done */
418 if (((hq->host_index + 1) % hq->entry_count) == hq->hba_index)
420 lpfc_sli_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size);
421 lpfc_sli_pcimem_bcopy(drqe, temp_drqe, dq->entry_size);
423 /* Update the host index to point to the next slot */
424 hq->host_index = ((hq->host_index + 1) % hq->entry_count);
425 dq->host_index = ((dq->host_index + 1) % dq->entry_count);
427 /* Ring The Header Receive Queue Doorbell */
428 if (!(hq->host_index % hq->entry_repost)) {
430 bf_set(lpfc_rq_doorbell_num_posted, &doorbell,
432 bf_set(lpfc_rq_doorbell_id, &doorbell, hq->queue_id);
433 writel(doorbell.word0, hq->phba->sli4_hba.RQDBregaddr);
439 * lpfc_sli4_rq_release - Updates internal hba index for RQ
440 * @q: The Header Receive Queue to operate on.
442 * This routine will update the HBA index of a queue to reflect consumption of
443 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
444 * consumed an entry the host calls this function to update the queue's
445 * internal pointers. This routine returns the number of entries that were
446 * consumed by the HBA.
449 lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq)
451 /* sanity check on queue memory */
452 if (unlikely(!hq) || unlikely(!dq))
455 if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ))
457 hq->hba_index = ((hq->hba_index + 1) % hq->entry_count);
458 dq->hba_index = ((dq->hba_index + 1) % dq->entry_count);
463 * lpfc_cmd_iocb - Get next command iocb entry in the ring
464 * @phba: Pointer to HBA context object.
465 * @pring: Pointer to driver SLI ring object.
467 * This function returns pointer to next command iocb entry
468 * in the command ring. The caller must hold hbalock to prevent
469 * other threads consume the next command iocb.
470 * SLI-2/SLI-3 provide different sized iocbs.
472 static inline IOCB_t *
473 lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
475 return (IOCB_t *) (((char *) pring->cmdringaddr) +
476 pring->cmdidx * phba->iocb_cmd_size);
480 * lpfc_resp_iocb - Get next response iocb entry in the ring
481 * @phba: Pointer to HBA context object.
482 * @pring: Pointer to driver SLI ring object.
484 * This function returns pointer to next response iocb entry
485 * in the response ring. The caller must hold hbalock to make sure
486 * that no other thread consume the next response iocb.
487 * SLI-2/SLI-3 provide different sized iocbs.
489 static inline IOCB_t *
490 lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
492 return (IOCB_t *) (((char *) pring->rspringaddr) +
493 pring->rspidx * phba->iocb_rsp_size);
497 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
498 * @phba: Pointer to HBA context object.
500 * This function is called with hbalock held. This function
501 * allocates a new driver iocb object from the iocb pool. If the
502 * allocation is successful, it returns pointer to the newly
503 * allocated iocb object else it returns NULL.
506 __lpfc_sli_get_iocbq(struct lpfc_hba *phba)
508 struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
509 struct lpfc_iocbq * iocbq = NULL;
511 list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
514 if (phba->iocb_cnt > phba->iocb_max)
515 phba->iocb_max = phba->iocb_cnt;
520 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
521 * @phba: Pointer to HBA context object.
522 * @xritag: XRI value.
524 * This function clears the sglq pointer from the array of acive
525 * sglq's. The xritag that is passed in is used to index into the
526 * array. Before the xritag can be used it needs to be adjusted
527 * by subtracting the xribase.
529 * Returns sglq ponter = success, NULL = Failure.
531 static struct lpfc_sglq *
532 __lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
534 struct lpfc_sglq *sglq;
536 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
537 phba->sli4_hba.lpfc_sglq_active_list[xritag] = NULL;
542 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
543 * @phba: Pointer to HBA context object.
544 * @xritag: XRI value.
546 * This function returns the sglq pointer from the array of acive
547 * sglq's. The xritag that is passed in is used to index into the
548 * array. Before the xritag can be used it needs to be adjusted
549 * by subtracting the xribase.
551 * Returns sglq ponter = success, NULL = Failure.
554 __lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
556 struct lpfc_sglq *sglq;
558 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
563 * lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
564 * @phba: Pointer to HBA context object.
565 * @xritag: xri used in this exchange.
566 * @rrq: The RRQ to be cleared.
570 lpfc_clr_rrq_active(struct lpfc_hba *phba,
572 struct lpfc_node_rrq *rrq)
574 struct lpfc_nodelist *ndlp = NULL;
576 if ((rrq->vport) && NLP_CHK_NODE_ACT(rrq->ndlp))
577 ndlp = lpfc_findnode_did(rrq->vport, rrq->nlp_DID);
579 /* The target DID could have been swapped (cable swap)
580 * we should use the ndlp from the findnode if it is
583 if ((!ndlp) && rrq->ndlp)
589 if (test_and_clear_bit(xritag, ndlp->active_rrqs.xri_bitmap)) {
592 rrq->rrq_stop_time = 0;
595 mempool_free(rrq, phba->rrq_pool);
599 * lpfc_handle_rrq_active - Checks if RRQ has waithed RATOV.
600 * @phba: Pointer to HBA context object.
602 * This function is called with hbalock held. This function
603 * Checks if stop_time (ratov from setting rrq active) has
604 * been reached, if it has and the send_rrq flag is set then
605 * it will call lpfc_send_rrq. If the send_rrq flag is not set
606 * then it will just call the routine to clear the rrq and
607 * free the rrq resource.
608 * The timer is set to the next rrq that is going to expire before
609 * leaving the routine.
613 lpfc_handle_rrq_active(struct lpfc_hba *phba)
615 struct lpfc_node_rrq *rrq;
616 struct lpfc_node_rrq *nextrrq;
617 unsigned long next_time;
618 unsigned long iflags;
621 spin_lock_irqsave(&phba->hbalock, iflags);
622 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
623 next_time = jiffies + HZ * (phba->fc_ratov + 1);
624 list_for_each_entry_safe(rrq, nextrrq,
625 &phba->active_rrq_list, list) {
626 if (time_after(jiffies, rrq->rrq_stop_time))
627 list_move(&rrq->list, &send_rrq);
628 else if (time_before(rrq->rrq_stop_time, next_time))
629 next_time = rrq->rrq_stop_time;
631 spin_unlock_irqrestore(&phba->hbalock, iflags);
632 if (!list_empty(&phba->active_rrq_list))
633 mod_timer(&phba->rrq_tmr, next_time);
634 list_for_each_entry_safe(rrq, nextrrq, &send_rrq, list) {
635 list_del(&rrq->list);
637 /* this call will free the rrq */
638 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
639 else if (lpfc_send_rrq(phba, rrq)) {
640 /* if we send the rrq then the completion handler
641 * will clear the bit in the xribitmap.
643 lpfc_clr_rrq_active(phba, rrq->xritag,
650 * lpfc_get_active_rrq - Get the active RRQ for this exchange.
651 * @vport: Pointer to vport context object.
652 * @xri: The xri used in the exchange.
653 * @did: The targets DID for this exchange.
655 * returns NULL = rrq not found in the phba->active_rrq_list.
656 * rrq = rrq for this xri and target.
658 struct lpfc_node_rrq *
659 lpfc_get_active_rrq(struct lpfc_vport *vport, uint16_t xri, uint32_t did)
661 struct lpfc_hba *phba = vport->phba;
662 struct lpfc_node_rrq *rrq;
663 struct lpfc_node_rrq *nextrrq;
664 unsigned long iflags;
666 if (phba->sli_rev != LPFC_SLI_REV4)
668 spin_lock_irqsave(&phba->hbalock, iflags);
669 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) {
670 if (rrq->vport == vport && rrq->xritag == xri &&
671 rrq->nlp_DID == did){
672 list_del(&rrq->list);
673 spin_unlock_irqrestore(&phba->hbalock, iflags);
677 spin_unlock_irqrestore(&phba->hbalock, iflags);
682 * lpfc_cleanup_vports_rrqs - Remove and clear the active RRQ for this vport.
683 * @vport: Pointer to vport context object.
684 * @ndlp: Pointer to the lpfc_node_list structure.
685 * If ndlp is NULL Remove all active RRQs for this vport from the
686 * phba->active_rrq_list and clear the rrq.
687 * If ndlp is not NULL then only remove rrqs for this vport & this ndlp.
690 lpfc_cleanup_vports_rrqs(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
693 struct lpfc_hba *phba = vport->phba;
694 struct lpfc_node_rrq *rrq;
695 struct lpfc_node_rrq *nextrrq;
696 unsigned long iflags;
699 if (phba->sli_rev != LPFC_SLI_REV4)
702 lpfc_sli4_vport_delete_els_xri_aborted(vport);
703 lpfc_sli4_vport_delete_fcp_xri_aborted(vport);
705 spin_lock_irqsave(&phba->hbalock, iflags);
706 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list)
707 if ((rrq->vport == vport) && (!ndlp || rrq->ndlp == ndlp))
708 list_move(&rrq->list, &rrq_list);
709 spin_unlock_irqrestore(&phba->hbalock, iflags);
711 list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
712 list_del(&rrq->list);
713 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
718 * lpfc_cleanup_wt_rrqs - Remove all rrq's from the active list.
719 * @phba: Pointer to HBA context object.
721 * Remove all rrqs from the phba->active_rrq_list and free them by
722 * calling __lpfc_clr_active_rrq
726 lpfc_cleanup_wt_rrqs(struct lpfc_hba *phba)
728 struct lpfc_node_rrq *rrq;
729 struct lpfc_node_rrq *nextrrq;
730 unsigned long next_time;
731 unsigned long iflags;
734 if (phba->sli_rev != LPFC_SLI_REV4)
736 spin_lock_irqsave(&phba->hbalock, iflags);
737 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
738 next_time = jiffies + HZ * (phba->fc_ratov * 2);
739 list_splice_init(&phba->active_rrq_list, &rrq_list);
740 spin_unlock_irqrestore(&phba->hbalock, iflags);
742 list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
743 list_del(&rrq->list);
744 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
746 if (!list_empty(&phba->active_rrq_list))
747 mod_timer(&phba->rrq_tmr, next_time);
752 * lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
753 * @phba: Pointer to HBA context object.
754 * @ndlp: Targets nodelist pointer for this exchange.
755 * @xritag the xri in the bitmap to test.
757 * This function is called with hbalock held. This function
758 * returns 0 = rrq not active for this xri
759 * 1 = rrq is valid for this xri.
762 lpfc_test_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
767 if (test_bit(xritag, ndlp->active_rrqs.xri_bitmap))
774 * lpfc_set_rrq_active - set RRQ active bit in xri_bitmap.
775 * @phba: Pointer to HBA context object.
776 * @ndlp: nodelist pointer for this target.
777 * @xritag: xri used in this exchange.
778 * @rxid: Remote Exchange ID.
779 * @send_rrq: Flag used to determine if we should send rrq els cmd.
781 * This function takes the hbalock.
782 * The active bit is always set in the active rrq xri_bitmap even
783 * if there is no slot avaiable for the other rrq information.
785 * returns 0 rrq actived for this xri
786 * < 0 No memory or invalid ndlp.
789 lpfc_set_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
790 uint16_t xritag, uint16_t rxid, uint16_t send_rrq)
792 unsigned long iflags;
793 struct lpfc_node_rrq *rrq;
799 if (!phba->cfg_enable_rrq)
802 spin_lock_irqsave(&phba->hbalock, iflags);
803 if (phba->pport->load_flag & FC_UNLOADING) {
804 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
809 * set the active bit even if there is no mem available.
811 if (NLP_CHK_FREE_REQ(ndlp))
814 if (ndlp->vport && (ndlp->vport->load_flag & FC_UNLOADING))
817 if (test_and_set_bit(xritag, ndlp->active_rrqs.xri_bitmap))
820 spin_unlock_irqrestore(&phba->hbalock, iflags);
821 rrq = mempool_alloc(phba->rrq_pool, GFP_KERNEL);
823 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
824 "3155 Unable to allocate RRQ xri:0x%x rxid:0x%x"
825 " DID:0x%x Send:%d\n",
826 xritag, rxid, ndlp->nlp_DID, send_rrq);
829 rrq->send_rrq = send_rrq;
830 rrq->xritag = xritag;
831 rrq->rrq_stop_time = jiffies + HZ * (phba->fc_ratov + 1);
833 rrq->nlp_DID = ndlp->nlp_DID;
834 rrq->vport = ndlp->vport;
836 rrq->send_rrq = send_rrq;
837 spin_lock_irqsave(&phba->hbalock, iflags);
838 empty = list_empty(&phba->active_rrq_list);
839 list_add_tail(&rrq->list, &phba->active_rrq_list);
840 phba->hba_flag |= HBA_RRQ_ACTIVE;
842 lpfc_worker_wake_up(phba);
843 spin_unlock_irqrestore(&phba->hbalock, iflags);
846 spin_unlock_irqrestore(&phba->hbalock, iflags);
847 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
848 "2921 Can't set rrq active xri:0x%x rxid:0x%x"
849 " DID:0x%x Send:%d\n",
850 xritag, rxid, ndlp->nlp_DID, send_rrq);
855 * __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool
856 * @phba: Pointer to HBA context object.
857 * @piocb: Pointer to the iocbq.
859 * This function is called with hbalock held. This function
860 * gets a new driver sglq object from the sglq list. If the
861 * list is not empty then it is successful, it returns pointer to the newly
862 * allocated sglq object else it returns NULL.
864 static struct lpfc_sglq *
865 __lpfc_sli_get_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
867 struct list_head *lpfc_sgl_list = &phba->sli4_hba.lpfc_sgl_list;
868 struct lpfc_sglq *sglq = NULL;
869 struct lpfc_sglq *start_sglq = NULL;
870 struct lpfc_scsi_buf *lpfc_cmd;
871 struct lpfc_nodelist *ndlp;
874 if (piocbq->iocb_flag & LPFC_IO_FCP) {
875 lpfc_cmd = (struct lpfc_scsi_buf *) piocbq->context1;
876 ndlp = lpfc_cmd->rdata->pnode;
877 } else if ((piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) &&
878 !(piocbq->iocb_flag & LPFC_IO_LIBDFC))
879 ndlp = piocbq->context_un.ndlp;
881 ndlp = piocbq->context1;
883 list_remove_head(lpfc_sgl_list, sglq, struct lpfc_sglq, list);
888 if (lpfc_test_rrq_active(phba, ndlp, sglq->sli4_xritag)) {
889 /* This xri has an rrq outstanding for this DID.
890 * put it back in the list and get another xri.
892 list_add_tail(&sglq->list, lpfc_sgl_list);
894 list_remove_head(lpfc_sgl_list, sglq,
895 struct lpfc_sglq, list);
896 if (sglq == start_sglq) {
904 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
905 sglq->state = SGL_ALLOCATED;
911 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
912 * @phba: Pointer to HBA context object.
914 * This function is called with no lock held. This function
915 * allocates a new driver iocb object from the iocb pool. If the
916 * allocation is successful, it returns pointer to the newly
917 * allocated iocb object else it returns NULL.
920 lpfc_sli_get_iocbq(struct lpfc_hba *phba)
922 struct lpfc_iocbq * iocbq = NULL;
923 unsigned long iflags;
925 spin_lock_irqsave(&phba->hbalock, iflags);
926 iocbq = __lpfc_sli_get_iocbq(phba);
927 spin_unlock_irqrestore(&phba->hbalock, iflags);
932 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
933 * @phba: Pointer to HBA context object.
934 * @iocbq: Pointer to driver iocb object.
936 * This function is called with hbalock held to release driver
937 * iocb object to the iocb pool. The iotag in the iocb object
938 * does not change for each use of the iocb object. This function
939 * clears all other fields of the iocb object when it is freed.
940 * The sqlq structure that holds the xritag and phys and virtual
941 * mappings for the scatter gather list is retrieved from the
942 * active array of sglq. The get of the sglq pointer also clears
943 * the entry in the array. If the status of the IO indiactes that
944 * this IO was aborted then the sglq entry it put on the
945 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
946 * IO has good status or fails for any other reason then the sglq
947 * entry is added to the free list (lpfc_sgl_list).
950 __lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
952 struct lpfc_sglq *sglq;
953 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
954 unsigned long iflag = 0;
955 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
957 if (iocbq->sli4_xritag == NO_XRI)
960 sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_lxritag);
963 if ((iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) &&
964 (sglq->state != SGL_XRI_ABORTED)) {
965 spin_lock_irqsave(&phba->sli4_hba.abts_sgl_list_lock,
967 list_add(&sglq->list,
968 &phba->sli4_hba.lpfc_abts_els_sgl_list);
969 spin_unlock_irqrestore(
970 &phba->sli4_hba.abts_sgl_list_lock, iflag);
972 sglq->state = SGL_FREED;
974 list_add_tail(&sglq->list,
975 &phba->sli4_hba.lpfc_sgl_list);
977 /* Check if TXQ queue needs to be serviced */
979 lpfc_worker_wake_up(phba);
985 * Clean all volatile data fields, preserve iotag and node struct.
987 memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
988 iocbq->sli4_lxritag = NO_XRI;
989 iocbq->sli4_xritag = NO_XRI;
990 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
995 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
996 * @phba: Pointer to HBA context object.
997 * @iocbq: Pointer to driver iocb object.
999 * This function is called with hbalock held to release driver
1000 * iocb object to the iocb pool. The iotag in the iocb object
1001 * does not change for each use of the iocb object. This function
1002 * clears all other fields of the iocb object when it is freed.
1005 __lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1007 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1010 * Clean all volatile data fields, preserve iotag and node struct.
1012 memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1013 iocbq->sli4_xritag = NO_XRI;
1014 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1018 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
1019 * @phba: Pointer to HBA context object.
1020 * @iocbq: Pointer to driver iocb object.
1022 * This function is called with hbalock held to release driver
1023 * iocb object to the iocb pool. The iotag in the iocb object
1024 * does not change for each use of the iocb object. This function
1025 * clears all other fields of the iocb object when it is freed.
1028 __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1030 phba->__lpfc_sli_release_iocbq(phba, iocbq);
1035 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
1036 * @phba: Pointer to HBA context object.
1037 * @iocbq: Pointer to driver iocb object.
1039 * This function is called with no lock held to release the iocb to
1043 lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1045 unsigned long iflags;
1048 * Clean all volatile data fields, preserve iotag and node struct.
1050 spin_lock_irqsave(&phba->hbalock, iflags);
1051 __lpfc_sli_release_iocbq(phba, iocbq);
1052 spin_unlock_irqrestore(&phba->hbalock, iflags);
1056 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
1057 * @phba: Pointer to HBA context object.
1058 * @iocblist: List of IOCBs.
1059 * @ulpstatus: ULP status in IOCB command field.
1060 * @ulpWord4: ULP word-4 in IOCB command field.
1062 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
1063 * on the list by invoking the complete callback function associated with the
1064 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
1068 lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
1069 uint32_t ulpstatus, uint32_t ulpWord4)
1071 struct lpfc_iocbq *piocb;
1073 while (!list_empty(iocblist)) {
1074 list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
1076 if (!piocb->iocb_cmpl)
1077 lpfc_sli_release_iocbq(phba, piocb);
1079 piocb->iocb.ulpStatus = ulpstatus;
1080 piocb->iocb.un.ulpWord[4] = ulpWord4;
1081 (piocb->iocb_cmpl) (phba, piocb, piocb);
1088 * lpfc_sli_iocb_cmd_type - Get the iocb type
1089 * @iocb_cmnd: iocb command code.
1091 * This function is called by ring event handler function to get the iocb type.
1092 * This function translates the iocb command to an iocb command type used to
1093 * decide the final disposition of each completed IOCB.
1094 * The function returns
1095 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
1096 * LPFC_SOL_IOCB if it is a solicited iocb completion
1097 * LPFC_ABORT_IOCB if it is an abort iocb
1098 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
1100 * The caller is not required to hold any lock.
1102 static lpfc_iocb_type
1103 lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
1105 lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
1107 if (iocb_cmnd > CMD_MAX_IOCB_CMD)
1110 switch (iocb_cmnd) {
1111 case CMD_XMIT_SEQUENCE_CR:
1112 case CMD_XMIT_SEQUENCE_CX:
1113 case CMD_XMIT_BCAST_CN:
1114 case CMD_XMIT_BCAST_CX:
1115 case CMD_ELS_REQUEST_CR:
1116 case CMD_ELS_REQUEST_CX:
1117 case CMD_CREATE_XRI_CR:
1118 case CMD_CREATE_XRI_CX:
1119 case CMD_GET_RPI_CN:
1120 case CMD_XMIT_ELS_RSP_CX:
1121 case CMD_GET_RPI_CR:
1122 case CMD_FCP_IWRITE_CR:
1123 case CMD_FCP_IWRITE_CX:
1124 case CMD_FCP_IREAD_CR:
1125 case CMD_FCP_IREAD_CX:
1126 case CMD_FCP_ICMND_CR:
1127 case CMD_FCP_ICMND_CX:
1128 case CMD_FCP_TSEND_CX:
1129 case CMD_FCP_TRSP_CX:
1130 case CMD_FCP_TRECEIVE_CX:
1131 case CMD_FCP_AUTO_TRSP_CX:
1132 case CMD_ADAPTER_MSG:
1133 case CMD_ADAPTER_DUMP:
1134 case CMD_XMIT_SEQUENCE64_CR:
1135 case CMD_XMIT_SEQUENCE64_CX:
1136 case CMD_XMIT_BCAST64_CN:
1137 case CMD_XMIT_BCAST64_CX:
1138 case CMD_ELS_REQUEST64_CR:
1139 case CMD_ELS_REQUEST64_CX:
1140 case CMD_FCP_IWRITE64_CR:
1141 case CMD_FCP_IWRITE64_CX:
1142 case CMD_FCP_IREAD64_CR:
1143 case CMD_FCP_IREAD64_CX:
1144 case CMD_FCP_ICMND64_CR:
1145 case CMD_FCP_ICMND64_CX:
1146 case CMD_FCP_TSEND64_CX:
1147 case CMD_FCP_TRSP64_CX:
1148 case CMD_FCP_TRECEIVE64_CX:
1149 case CMD_GEN_REQUEST64_CR:
1150 case CMD_GEN_REQUEST64_CX:
1151 case CMD_XMIT_ELS_RSP64_CX:
1152 case DSSCMD_IWRITE64_CR:
1153 case DSSCMD_IWRITE64_CX:
1154 case DSSCMD_IREAD64_CR:
1155 case DSSCMD_IREAD64_CX:
1156 type = LPFC_SOL_IOCB;
1158 case CMD_ABORT_XRI_CN:
1159 case CMD_ABORT_XRI_CX:
1160 case CMD_CLOSE_XRI_CN:
1161 case CMD_CLOSE_XRI_CX:
1162 case CMD_XRI_ABORTED_CX:
1163 case CMD_ABORT_MXRI64_CN:
1164 case CMD_XMIT_BLS_RSP64_CX:
1165 type = LPFC_ABORT_IOCB;
1167 case CMD_RCV_SEQUENCE_CX:
1168 case CMD_RCV_ELS_REQ_CX:
1169 case CMD_RCV_SEQUENCE64_CX:
1170 case CMD_RCV_ELS_REQ64_CX:
1171 case CMD_ASYNC_STATUS:
1172 case CMD_IOCB_RCV_SEQ64_CX:
1173 case CMD_IOCB_RCV_ELS64_CX:
1174 case CMD_IOCB_RCV_CONT64_CX:
1175 case CMD_IOCB_RET_XRI64_CX:
1176 type = LPFC_UNSOL_IOCB;
1178 case CMD_IOCB_XMIT_MSEQ64_CR:
1179 case CMD_IOCB_XMIT_MSEQ64_CX:
1180 case CMD_IOCB_RCV_SEQ_LIST64_CX:
1181 case CMD_IOCB_RCV_ELS_LIST64_CX:
1182 case CMD_IOCB_CLOSE_EXTENDED_CN:
1183 case CMD_IOCB_ABORT_EXTENDED_CN:
1184 case CMD_IOCB_RET_HBQE64_CN:
1185 case CMD_IOCB_FCP_IBIDIR64_CR:
1186 case CMD_IOCB_FCP_IBIDIR64_CX:
1187 case CMD_IOCB_FCP_ITASKMGT64_CX:
1188 case CMD_IOCB_LOGENTRY_CN:
1189 case CMD_IOCB_LOGENTRY_ASYNC_CN:
1190 printk("%s - Unhandled SLI-3 Command x%x\n",
1191 __func__, iocb_cmnd);
1192 type = LPFC_UNKNOWN_IOCB;
1195 type = LPFC_UNKNOWN_IOCB;
1203 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
1204 * @phba: Pointer to HBA context object.
1206 * This function is called from SLI initialization code
1207 * to configure every ring of the HBA's SLI interface. The
1208 * caller is not required to hold any lock. This function issues
1209 * a config_ring mailbox command for each ring.
1210 * This function returns zero if successful else returns a negative
1214 lpfc_sli_ring_map(struct lpfc_hba *phba)
1216 struct lpfc_sli *psli = &phba->sli;
1221 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1225 phba->link_state = LPFC_INIT_MBX_CMDS;
1226 for (i = 0; i < psli->num_rings; i++) {
1227 lpfc_config_ring(phba, i, pmb);
1228 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
1229 if (rc != MBX_SUCCESS) {
1230 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1231 "0446 Adapter failed to init (%d), "
1232 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
1234 rc, pmbox->mbxCommand,
1235 pmbox->mbxStatus, i);
1236 phba->link_state = LPFC_HBA_ERROR;
1241 mempool_free(pmb, phba->mbox_mem_pool);
1246 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
1247 * @phba: Pointer to HBA context object.
1248 * @pring: Pointer to driver SLI ring object.
1249 * @piocb: Pointer to the driver iocb object.
1251 * This function is called with hbalock held. The function adds the
1252 * new iocb to txcmplq of the given ring. This function always returns
1253 * 0. If this function is called for ELS ring, this function checks if
1254 * there is a vport associated with the ELS command. This function also
1255 * starts els_tmofunc timer if this is an ELS command.
1258 lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1259 struct lpfc_iocbq *piocb)
1261 list_add_tail(&piocb->list, &pring->txcmplq);
1262 piocb->iocb_flag |= LPFC_IO_ON_TXCMPLQ;
1263 pring->txcmplq_cnt++;
1264 if (pring->txcmplq_cnt > pring->txcmplq_max)
1265 pring->txcmplq_max = pring->txcmplq_cnt;
1267 if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
1268 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
1269 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
1273 mod_timer(&piocb->vport->els_tmofunc,
1274 jiffies + HZ * (phba->fc_ratov << 1));
1282 * lpfc_sli_ringtx_get - Get first element of the txq
1283 * @phba: Pointer to HBA context object.
1284 * @pring: Pointer to driver SLI ring object.
1286 * This function is called with hbalock held to get next
1287 * iocb in txq of the given ring. If there is any iocb in
1288 * the txq, the function returns first iocb in the list after
1289 * removing the iocb from the list, else it returns NULL.
1292 lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1294 struct lpfc_iocbq *cmd_iocb;
1296 list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
1297 if (cmd_iocb != NULL)
1303 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
1304 * @phba: Pointer to HBA context object.
1305 * @pring: Pointer to driver SLI ring object.
1307 * This function is called with hbalock held and the caller must post the
1308 * iocb without releasing the lock. If the caller releases the lock,
1309 * iocb slot returned by the function is not guaranteed to be available.
1310 * The function returns pointer to the next available iocb slot if there
1311 * is available slot in the ring, else it returns NULL.
1312 * If the get index of the ring is ahead of the put index, the function
1313 * will post an error attention event to the worker thread to take the
1314 * HBA to offline state.
1317 lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1319 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
1320 uint32_t max_cmd_idx = pring->numCiocb;
1321 if ((pring->next_cmdidx == pring->cmdidx) &&
1322 (++pring->next_cmdidx >= max_cmd_idx))
1323 pring->next_cmdidx = 0;
1325 if (unlikely(pring->local_getidx == pring->next_cmdidx)) {
1327 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
1329 if (unlikely(pring->local_getidx >= max_cmd_idx)) {
1330 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1331 "0315 Ring %d issue: portCmdGet %d "
1332 "is bigger than cmd ring %d\n",
1334 pring->local_getidx, max_cmd_idx);
1336 phba->link_state = LPFC_HBA_ERROR;
1338 * All error attention handlers are posted to
1341 phba->work_ha |= HA_ERATT;
1342 phba->work_hs = HS_FFER3;
1344 lpfc_worker_wake_up(phba);
1349 if (pring->local_getidx == pring->next_cmdidx)
1353 return lpfc_cmd_iocb(phba, pring);
1357 * lpfc_sli_next_iotag - Get an iotag for the iocb
1358 * @phba: Pointer to HBA context object.
1359 * @iocbq: Pointer to driver iocb object.
1361 * This function gets an iotag for the iocb. If there is no unused iotag and
1362 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
1363 * array and assigns a new iotag.
1364 * The function returns the allocated iotag if successful, else returns zero.
1365 * Zero is not a valid iotag.
1366 * The caller is not required to hold any lock.
1369 lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1371 struct lpfc_iocbq **new_arr;
1372 struct lpfc_iocbq **old_arr;
1374 struct lpfc_sli *psli = &phba->sli;
1377 spin_lock_irq(&phba->hbalock);
1378 iotag = psli->last_iotag;
1379 if(++iotag < psli->iocbq_lookup_len) {
1380 psli->last_iotag = iotag;
1381 psli->iocbq_lookup[iotag] = iocbq;
1382 spin_unlock_irq(&phba->hbalock);
1383 iocbq->iotag = iotag;
1385 } else if (psli->iocbq_lookup_len < (0xffff
1386 - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
1387 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
1388 spin_unlock_irq(&phba->hbalock);
1389 new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *),
1392 spin_lock_irq(&phba->hbalock);
1393 old_arr = psli->iocbq_lookup;
1394 if (new_len <= psli->iocbq_lookup_len) {
1395 /* highly unprobable case */
1397 iotag = psli->last_iotag;
1398 if(++iotag < psli->iocbq_lookup_len) {
1399 psli->last_iotag = iotag;
1400 psli->iocbq_lookup[iotag] = iocbq;
1401 spin_unlock_irq(&phba->hbalock);
1402 iocbq->iotag = iotag;
1405 spin_unlock_irq(&phba->hbalock);
1408 if (psli->iocbq_lookup)
1409 memcpy(new_arr, old_arr,
1410 ((psli->last_iotag + 1) *
1411 sizeof (struct lpfc_iocbq *)));
1412 psli->iocbq_lookup = new_arr;
1413 psli->iocbq_lookup_len = new_len;
1414 psli->last_iotag = iotag;
1415 psli->iocbq_lookup[iotag] = iocbq;
1416 spin_unlock_irq(&phba->hbalock);
1417 iocbq->iotag = iotag;
1422 spin_unlock_irq(&phba->hbalock);
1424 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
1425 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1432 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
1433 * @phba: Pointer to HBA context object.
1434 * @pring: Pointer to driver SLI ring object.
1435 * @iocb: Pointer to iocb slot in the ring.
1436 * @nextiocb: Pointer to driver iocb object which need to be
1437 * posted to firmware.
1439 * This function is called with hbalock held to post a new iocb to
1440 * the firmware. This function copies the new iocb to ring iocb slot and
1441 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1442 * a completion call back for this iocb else the function will free the
1446 lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1447 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
1452 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
1455 if (pring->ringno == LPFC_ELS_RING) {
1456 lpfc_debugfs_slow_ring_trc(phba,
1457 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1458 *(((uint32_t *) &nextiocb->iocb) + 4),
1459 *(((uint32_t *) &nextiocb->iocb) + 6),
1460 *(((uint32_t *) &nextiocb->iocb) + 7));
1464 * Issue iocb command to adapter
1466 lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
1468 pring->stats.iocb_cmd++;
1471 * If there is no completion routine to call, we can release the
1472 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1473 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1475 if (nextiocb->iocb_cmpl)
1476 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
1478 __lpfc_sli_release_iocbq(phba, nextiocb);
1481 * Let the HBA know what IOCB slot will be the next one the
1482 * driver will put a command into.
1484 pring->cmdidx = pring->next_cmdidx;
1485 writel(pring->cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
1489 * lpfc_sli_update_full_ring - Update the chip attention register
1490 * @phba: Pointer to HBA context object.
1491 * @pring: Pointer to driver SLI ring object.
1493 * The caller is not required to hold any lock for calling this function.
1494 * This function updates the chip attention bits for the ring to inform firmware
1495 * that there are pending work to be done for this ring and requests an
1496 * interrupt when there is space available in the ring. This function is
1497 * called when the driver is unable to post more iocbs to the ring due
1498 * to unavailability of space in the ring.
1501 lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1503 int ringno = pring->ringno;
1505 pring->flag |= LPFC_CALL_RING_AVAILABLE;
1510 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1511 * The HBA will tell us when an IOCB entry is available.
1513 writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
1514 readl(phba->CAregaddr); /* flush */
1516 pring->stats.iocb_cmd_full++;
1520 * lpfc_sli_update_ring - Update chip attention register
1521 * @phba: Pointer to HBA context object.
1522 * @pring: Pointer to driver SLI ring object.
1524 * This function updates the chip attention register bit for the
1525 * given ring to inform HBA that there is more work to be done
1526 * in this ring. The caller is not required to hold any lock.
1529 lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1531 int ringno = pring->ringno;
1534 * Tell the HBA that there is work to do in this ring.
1536 if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
1538 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
1539 readl(phba->CAregaddr); /* flush */
1544 * lpfc_sli_resume_iocb - Process iocbs in the txq
1545 * @phba: Pointer to HBA context object.
1546 * @pring: Pointer to driver SLI ring object.
1548 * This function is called with hbalock held to post pending iocbs
1549 * in the txq to the firmware. This function is called when driver
1550 * detects space available in the ring.
1553 lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1556 struct lpfc_iocbq *nextiocb;
1560 * (a) there is anything on the txq to send
1562 * (c) link attention events can be processed (fcp ring only)
1563 * (d) IOCB processing is not blocked by the outstanding mbox command.
1565 if (pring->txq_cnt &&
1566 lpfc_is_link_up(phba) &&
1567 (pring->ringno != phba->sli.fcp_ring ||
1568 phba->sli.sli_flag & LPFC_PROCESS_LA)) {
1570 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
1571 (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
1572 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
1575 lpfc_sli_update_ring(phba, pring);
1577 lpfc_sli_update_full_ring(phba, pring);
1584 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
1585 * @phba: Pointer to HBA context object.
1586 * @hbqno: HBQ number.
1588 * This function is called with hbalock held to get the next
1589 * available slot for the given HBQ. If there is free slot
1590 * available for the HBQ it will return pointer to the next available
1591 * HBQ entry else it will return NULL.
1593 static struct lpfc_hbq_entry *
1594 lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
1596 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1598 if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
1599 ++hbqp->next_hbqPutIdx >= hbqp->entry_count)
1600 hbqp->next_hbqPutIdx = 0;
1602 if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
1603 uint32_t raw_index = phba->hbq_get[hbqno];
1604 uint32_t getidx = le32_to_cpu(raw_index);
1606 hbqp->local_hbqGetIdx = getidx;
1608 if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
1609 lpfc_printf_log(phba, KERN_ERR,
1610 LOG_SLI | LOG_VPORT,
1611 "1802 HBQ %d: local_hbqGetIdx "
1612 "%u is > than hbqp->entry_count %u\n",
1613 hbqno, hbqp->local_hbqGetIdx,
1616 phba->link_state = LPFC_HBA_ERROR;
1620 if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
1624 return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
1629 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
1630 * @phba: Pointer to HBA context object.
1632 * This function is called with no lock held to free all the
1633 * hbq buffers while uninitializing the SLI interface. It also
1634 * frees the HBQ buffers returned by the firmware but not yet
1635 * processed by the upper layers.
1638 lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
1640 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
1641 struct hbq_dmabuf *hbq_buf;
1642 unsigned long flags;
1646 hbq_count = lpfc_sli_hbq_count();
1647 /* Return all memory used by all HBQs */
1648 spin_lock_irqsave(&phba->hbalock, flags);
1649 for (i = 0; i < hbq_count; ++i) {
1650 list_for_each_entry_safe(dmabuf, next_dmabuf,
1651 &phba->hbqs[i].hbq_buffer_list, list) {
1652 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1653 list_del(&hbq_buf->dbuf.list);
1654 (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
1656 phba->hbqs[i].buffer_count = 0;
1658 /* Return all HBQ buffer that are in-fly */
1659 list_for_each_entry_safe(dmabuf, next_dmabuf, &phba->rb_pend_list,
1661 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1662 list_del(&hbq_buf->dbuf.list);
1663 if (hbq_buf->tag == -1) {
1664 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1667 hbqno = hbq_buf->tag >> 16;
1668 if (hbqno >= LPFC_MAX_HBQS)
1669 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1672 (phba->hbqs[hbqno].hbq_free_buffer)(phba,
1677 /* Mark the HBQs not in use */
1678 phba->hbq_in_use = 0;
1679 spin_unlock_irqrestore(&phba->hbalock, flags);
1683 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
1684 * @phba: Pointer to HBA context object.
1685 * @hbqno: HBQ number.
1686 * @hbq_buf: Pointer to HBQ buffer.
1688 * This function is called with the hbalock held to post a
1689 * hbq buffer to the firmware. If the function finds an empty
1690 * slot in the HBQ, it will post the buffer. The function will return
1691 * pointer to the hbq entry if it successfully post the buffer
1692 * else it will return NULL.
1695 lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
1696 struct hbq_dmabuf *hbq_buf)
1698 return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
1702 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
1703 * @phba: Pointer to HBA context object.
1704 * @hbqno: HBQ number.
1705 * @hbq_buf: Pointer to HBQ buffer.
1707 * This function is called with the hbalock held to post a hbq buffer to the
1708 * firmware. If the function finds an empty slot in the HBQ, it will post the
1709 * buffer and place it on the hbq_buffer_list. The function will return zero if
1710 * it successfully post the buffer else it will return an error.
1713 lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
1714 struct hbq_dmabuf *hbq_buf)
1716 struct lpfc_hbq_entry *hbqe;
1717 dma_addr_t physaddr = hbq_buf->dbuf.phys;
1719 /* Get next HBQ entry slot to use */
1720 hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
1722 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1724 hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
1725 hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
1726 hbqe->bde.tus.f.bdeSize = hbq_buf->size;
1727 hbqe->bde.tus.f.bdeFlags = 0;
1728 hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
1729 hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
1731 hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
1732 writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
1734 readl(phba->hbq_put + hbqno);
1735 list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
1742 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
1743 * @phba: Pointer to HBA context object.
1744 * @hbqno: HBQ number.
1745 * @hbq_buf: Pointer to HBQ buffer.
1747 * This function is called with the hbalock held to post an RQE to the SLI4
1748 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
1749 * the hbq_buffer_list and return zero, otherwise it will return an error.
1752 lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
1753 struct hbq_dmabuf *hbq_buf)
1756 struct lpfc_rqe hrqe;
1757 struct lpfc_rqe drqe;
1759 hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
1760 hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
1761 drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
1762 drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
1763 rc = lpfc_sli4_rq_put(phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
1768 list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
1772 /* HBQ for ELS and CT traffic. */
1773 static struct lpfc_hbq_init lpfc_els_hbq = {
1778 .ring_mask = (1 << LPFC_ELS_RING),
1784 /* HBQ for the extra ring if needed */
1785 static struct lpfc_hbq_init lpfc_extra_hbq = {
1790 .ring_mask = (1 << LPFC_EXTRA_RING),
1797 struct lpfc_hbq_init *lpfc_hbq_defs[] = {
1803 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
1804 * @phba: Pointer to HBA context object.
1805 * @hbqno: HBQ number.
1806 * @count: Number of HBQ buffers to be posted.
1808 * This function is called with no lock held to post more hbq buffers to the
1809 * given HBQ. The function returns the number of HBQ buffers successfully
1813 lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
1815 uint32_t i, posted = 0;
1816 unsigned long flags;
1817 struct hbq_dmabuf *hbq_buffer;
1818 LIST_HEAD(hbq_buf_list);
1819 if (!phba->hbqs[hbqno].hbq_alloc_buffer)
1822 if ((phba->hbqs[hbqno].buffer_count + count) >
1823 lpfc_hbq_defs[hbqno]->entry_count)
1824 count = lpfc_hbq_defs[hbqno]->entry_count -
1825 phba->hbqs[hbqno].buffer_count;
1828 /* Allocate HBQ entries */
1829 for (i = 0; i < count; i++) {
1830 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
1833 list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
1835 /* Check whether HBQ is still in use */
1836 spin_lock_irqsave(&phba->hbalock, flags);
1837 if (!phba->hbq_in_use)
1839 while (!list_empty(&hbq_buf_list)) {
1840 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1842 hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
1844 if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
1845 phba->hbqs[hbqno].buffer_count++;
1848 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1850 spin_unlock_irqrestore(&phba->hbalock, flags);
1853 spin_unlock_irqrestore(&phba->hbalock, flags);
1854 while (!list_empty(&hbq_buf_list)) {
1855 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1857 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1863 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
1864 * @phba: Pointer to HBA context object.
1867 * This function posts more buffers to the HBQ. This function
1868 * is called with no lock held. The function returns the number of HBQ entries
1869 * successfully allocated.
1872 lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
1874 if (phba->sli_rev == LPFC_SLI_REV4)
1877 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1878 lpfc_hbq_defs[qno]->add_count);
1882 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
1883 * @phba: Pointer to HBA context object.
1884 * @qno: HBQ queue number.
1886 * This function is called from SLI initialization code path with
1887 * no lock held to post initial HBQ buffers to firmware. The
1888 * function returns the number of HBQ entries successfully allocated.
1891 lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
1893 if (phba->sli_rev == LPFC_SLI_REV4)
1894 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1895 lpfc_hbq_defs[qno]->entry_count);
1897 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1898 lpfc_hbq_defs[qno]->init_count);
1902 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
1903 * @phba: Pointer to HBA context object.
1904 * @hbqno: HBQ number.
1906 * This function removes the first hbq buffer on an hbq list and returns a
1907 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
1909 static struct hbq_dmabuf *
1910 lpfc_sli_hbqbuf_get(struct list_head *rb_list)
1912 struct lpfc_dmabuf *d_buf;
1914 list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
1917 return container_of(d_buf, struct hbq_dmabuf, dbuf);
1921 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
1922 * @phba: Pointer to HBA context object.
1923 * @tag: Tag of the hbq buffer.
1925 * This function is called with hbalock held. This function searches
1926 * for the hbq buffer associated with the given tag in the hbq buffer
1927 * list. If it finds the hbq buffer, it returns the hbq_buffer other wise
1930 static struct hbq_dmabuf *
1931 lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
1933 struct lpfc_dmabuf *d_buf;
1934 struct hbq_dmabuf *hbq_buf;
1938 if (hbqno >= LPFC_MAX_HBQS)
1941 spin_lock_irq(&phba->hbalock);
1942 list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
1943 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
1944 if (hbq_buf->tag == tag) {
1945 spin_unlock_irq(&phba->hbalock);
1949 spin_unlock_irq(&phba->hbalock);
1950 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT,
1951 "1803 Bad hbq tag. Data: x%x x%x\n",
1952 tag, phba->hbqs[tag >> 16].buffer_count);
1957 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
1958 * @phba: Pointer to HBA context object.
1959 * @hbq_buffer: Pointer to HBQ buffer.
1961 * This function is called with hbalock. This function gives back
1962 * the hbq buffer to firmware. If the HBQ does not have space to
1963 * post the buffer, it will free the buffer.
1966 lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
1971 hbqno = hbq_buffer->tag >> 16;
1972 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
1973 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1978 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
1979 * @mbxCommand: mailbox command code.
1981 * This function is called by the mailbox event handler function to verify
1982 * that the completed mailbox command is a legitimate mailbox command. If the
1983 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
1984 * and the mailbox event handler will take the HBA offline.
1987 lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
1991 switch (mbxCommand) {
1995 case MBX_WRITE_VPARMS:
1996 case MBX_RUN_BIU_DIAG:
1999 case MBX_CONFIG_LINK:
2000 case MBX_CONFIG_RING:
2001 case MBX_RESET_RING:
2002 case MBX_READ_CONFIG:
2003 case MBX_READ_RCONFIG:
2004 case MBX_READ_SPARM:
2005 case MBX_READ_STATUS:
2009 case MBX_READ_LNK_STAT:
2011 case MBX_UNREG_LOGIN:
2013 case MBX_DUMP_MEMORY:
2014 case MBX_DUMP_CONTEXT:
2017 case MBX_UPDATE_CFG:
2019 case MBX_DEL_LD_ENTRY:
2020 case MBX_RUN_PROGRAM:
2022 case MBX_SET_VARIABLE:
2023 case MBX_UNREG_D_ID:
2024 case MBX_KILL_BOARD:
2025 case MBX_CONFIG_FARP:
2028 case MBX_RUN_BIU_DIAG64:
2029 case MBX_CONFIG_PORT:
2030 case MBX_READ_SPARM64:
2031 case MBX_READ_RPI64:
2032 case MBX_REG_LOGIN64:
2033 case MBX_READ_TOPOLOGY:
2036 case MBX_LOAD_EXP_ROM:
2037 case MBX_ASYNCEVT_ENABLE:
2041 case MBX_PORT_CAPABILITIES:
2042 case MBX_PORT_IOV_CONTROL:
2043 case MBX_SLI4_CONFIG:
2044 case MBX_SLI4_REQ_FTRS:
2046 case MBX_UNREG_FCFI:
2051 case MBX_RESUME_RPI:
2052 case MBX_READ_EVENT_LOG_STATUS:
2053 case MBX_READ_EVENT_LOG:
2054 case MBX_SECURITY_MGMT:
2066 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
2067 * @phba: Pointer to HBA context object.
2068 * @pmboxq: Pointer to mailbox command.
2070 * This is completion handler function for mailbox commands issued from
2071 * lpfc_sli_issue_mbox_wait function. This function is called by the
2072 * mailbox event handler function with no lock held. This function
2073 * will wake up thread waiting on the wait queue pointed by context1
2077 lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
2079 wait_queue_head_t *pdone_q;
2080 unsigned long drvr_flag;
2083 * If pdone_q is empty, the driver thread gave up waiting and
2084 * continued running.
2086 pmboxq->mbox_flag |= LPFC_MBX_WAKE;
2087 spin_lock_irqsave(&phba->hbalock, drvr_flag);
2088 pdone_q = (wait_queue_head_t *) pmboxq->context1;
2090 wake_up_interruptible(pdone_q);
2091 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
2097 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
2098 * @phba: Pointer to HBA context object.
2099 * @pmb: Pointer to mailbox object.
2101 * This function is the default mailbox completion handler. It
2102 * frees the memory resources associated with the completed mailbox
2103 * command. If the completed command is a REG_LOGIN mailbox command,
2104 * this function will issue a UREG_LOGIN to re-claim the RPI.
2107 lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2109 struct lpfc_vport *vport = pmb->vport;
2110 struct lpfc_dmabuf *mp;
2111 struct lpfc_nodelist *ndlp;
2112 struct Scsi_Host *shost;
2116 mp = (struct lpfc_dmabuf *) (pmb->context1);
2119 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2124 * If a REG_LOGIN succeeded after node is destroyed or node
2125 * is in re-discovery driver need to cleanup the RPI.
2127 if (!(phba->pport->load_flag & FC_UNLOADING) &&
2128 pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
2129 !pmb->u.mb.mbxStatus) {
2130 rpi = pmb->u.mb.un.varWords[0];
2131 vpi = pmb->u.mb.un.varRegLogin.vpi;
2132 lpfc_unreg_login(phba, vpi, rpi, pmb);
2133 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2134 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2135 if (rc != MBX_NOT_FINISHED)
2139 if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) &&
2140 !(phba->pport->load_flag & FC_UNLOADING) &&
2141 !pmb->u.mb.mbxStatus) {
2142 shost = lpfc_shost_from_vport(vport);
2143 spin_lock_irq(shost->host_lock);
2144 vport->vpi_state |= LPFC_VPI_REGISTERED;
2145 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
2146 spin_unlock_irq(shost->host_lock);
2149 if (pmb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
2150 ndlp = (struct lpfc_nodelist *)pmb->context2;
2152 pmb->context2 = NULL;
2155 /* Check security permission status on INIT_LINK mailbox command */
2156 if ((pmb->u.mb.mbxCommand == MBX_INIT_LINK) &&
2157 (pmb->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
2158 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2159 "2860 SLI authentication is required "
2160 "for INIT_LINK but has not done yet\n");
2162 if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
2163 lpfc_sli4_mbox_cmd_free(phba, pmb);
2165 mempool_free(pmb, phba->mbox_mem_pool);
2169 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
2170 * @phba: Pointer to HBA context object.
2172 * This function is called with no lock held. This function processes all
2173 * the completed mailbox commands and gives it to upper layers. The interrupt
2174 * service routine processes mailbox completion interrupt and adds completed
2175 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
2176 * Worker thread call lpfc_sli_handle_mb_event, which will return the
2177 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
2178 * function returns the mailbox commands to the upper layer by calling the
2179 * completion handler function of each mailbox.
2182 lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
2189 phba->sli.slistat.mbox_event++;
2191 /* Get all completed mailboxe buffers into the cmplq */
2192 spin_lock_irq(&phba->hbalock);
2193 list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
2194 spin_unlock_irq(&phba->hbalock);
2196 /* Get a Mailbox buffer to setup mailbox commands for callback */
2198 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
2204 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
2206 lpfc_debugfs_disc_trc(pmb->vport,
2207 LPFC_DISC_TRC_MBOX_VPORT,
2208 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
2209 (uint32_t)pmbox->mbxCommand,
2210 pmbox->un.varWords[0],
2211 pmbox->un.varWords[1]);
2214 lpfc_debugfs_disc_trc(phba->pport,
2216 "MBOX cmpl: cmd:x%x mb:x%x x%x",
2217 (uint32_t)pmbox->mbxCommand,
2218 pmbox->un.varWords[0],
2219 pmbox->un.varWords[1]);
2224 * It is a fatal error if unknown mbox command completion.
2226 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
2228 /* Unknown mailbox command compl */
2229 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2230 "(%d):0323 Unknown Mailbox command "
2231 "x%x (x%x/x%x) Cmpl\n",
2232 pmb->vport ? pmb->vport->vpi : 0,
2234 lpfc_sli_config_mbox_subsys_get(phba,
2236 lpfc_sli_config_mbox_opcode_get(phba,
2238 phba->link_state = LPFC_HBA_ERROR;
2239 phba->work_hs = HS_FFER3;
2240 lpfc_handle_eratt(phba);
2244 if (pmbox->mbxStatus) {
2245 phba->sli.slistat.mbox_stat_err++;
2246 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
2247 /* Mbox cmd cmpl error - RETRYing */
2248 lpfc_printf_log(phba, KERN_INFO,
2250 "(%d):0305 Mbox cmd cmpl "
2251 "error - RETRYing Data: x%x "
2252 "(x%x/x%x) x%x x%x x%x\n",
2253 pmb->vport ? pmb->vport->vpi : 0,
2255 lpfc_sli_config_mbox_subsys_get(phba,
2257 lpfc_sli_config_mbox_opcode_get(phba,
2260 pmbox->un.varWords[0],
2261 pmb->vport->port_state);
2262 pmbox->mbxStatus = 0;
2263 pmbox->mbxOwner = OWN_HOST;
2264 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2265 if (rc != MBX_NOT_FINISHED)
2270 /* Mailbox cmd <cmd> Cmpl <cmpl> */
2271 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
2272 "(%d):0307 Mailbox cmd x%x (x%x/x%x) Cmpl x%p "
2273 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n",
2274 pmb->vport ? pmb->vport->vpi : 0,
2276 lpfc_sli_config_mbox_subsys_get(phba, pmb),
2277 lpfc_sli_config_mbox_opcode_get(phba, pmb),
2279 *((uint32_t *) pmbox),
2280 pmbox->un.varWords[0],
2281 pmbox->un.varWords[1],
2282 pmbox->un.varWords[2],
2283 pmbox->un.varWords[3],
2284 pmbox->un.varWords[4],
2285 pmbox->un.varWords[5],
2286 pmbox->un.varWords[6],
2287 pmbox->un.varWords[7]);
2290 pmb->mbox_cmpl(phba,pmb);
2296 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
2297 * @phba: Pointer to HBA context object.
2298 * @pring: Pointer to driver SLI ring object.
2301 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
2302 * is set in the tag the buffer is posted for a particular exchange,
2303 * the function will return the buffer without replacing the buffer.
2304 * If the buffer is for unsolicited ELS or CT traffic, this function
2305 * returns the buffer and also posts another buffer to the firmware.
2307 static struct lpfc_dmabuf *
2308 lpfc_sli_get_buff(struct lpfc_hba *phba,
2309 struct lpfc_sli_ring *pring,
2312 struct hbq_dmabuf *hbq_entry;
2314 if (tag & QUE_BUFTAG_BIT)
2315 return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
2316 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
2319 return &hbq_entry->dbuf;
2323 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
2324 * @phba: Pointer to HBA context object.
2325 * @pring: Pointer to driver SLI ring object.
2326 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
2327 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
2328 * @fch_type: the type for the first frame of the sequence.
2330 * This function is called with no lock held. This function uses the r_ctl and
2331 * type of the received sequence to find the correct callback function to call
2332 * to process the sequence.
2335 lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2336 struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
2341 /* unSolicited Responses */
2342 if (pring->prt[0].profile) {
2343 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
2344 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
2348 /* We must search, based on rctl / type
2349 for the right routine */
2350 for (i = 0; i < pring->num_mask; i++) {
2351 if ((pring->prt[i].rctl == fch_r_ctl) &&
2352 (pring->prt[i].type == fch_type)) {
2353 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
2354 (pring->prt[i].lpfc_sli_rcv_unsol_event)
2355 (phba, pring, saveq);
2363 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
2364 * @phba: Pointer to HBA context object.
2365 * @pring: Pointer to driver SLI ring object.
2366 * @saveq: Pointer to the unsolicited iocb.
2368 * This function is called with no lock held by the ring event handler
2369 * when there is an unsolicited iocb posted to the response ring by the
2370 * firmware. This function gets the buffer associated with the iocbs
2371 * and calls the event handler for the ring. This function handles both
2372 * qring buffers and hbq buffers.
2373 * When the function returns 1 the caller can free the iocb object otherwise
2374 * upper layer functions will free the iocb objects.
2377 lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2378 struct lpfc_iocbq *saveq)
2382 uint32_t Rctl, Type;
2384 struct lpfc_iocbq *iocbq;
2385 struct lpfc_dmabuf *dmzbuf;
2388 irsp = &(saveq->iocb);
2390 if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
2391 if (pring->lpfc_sli_rcv_async_status)
2392 pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
2394 lpfc_printf_log(phba,
2397 "0316 Ring %d handler: unexpected "
2398 "ASYNC_STATUS iocb received evt_code "
2401 irsp->un.asyncstat.evt_code);
2405 if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
2406 (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
2407 if (irsp->ulpBdeCount > 0) {
2408 dmzbuf = lpfc_sli_get_buff(phba, pring,
2409 irsp->un.ulpWord[3]);
2410 lpfc_in_buf_free(phba, dmzbuf);
2413 if (irsp->ulpBdeCount > 1) {
2414 dmzbuf = lpfc_sli_get_buff(phba, pring,
2415 irsp->unsli3.sli3Words[3]);
2416 lpfc_in_buf_free(phba, dmzbuf);
2419 if (irsp->ulpBdeCount > 2) {
2420 dmzbuf = lpfc_sli_get_buff(phba, pring,
2421 irsp->unsli3.sli3Words[7]);
2422 lpfc_in_buf_free(phba, dmzbuf);
2428 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
2429 if (irsp->ulpBdeCount != 0) {
2430 saveq->context2 = lpfc_sli_get_buff(phba, pring,
2431 irsp->un.ulpWord[3]);
2432 if (!saveq->context2)
2433 lpfc_printf_log(phba,
2436 "0341 Ring %d Cannot find buffer for "
2437 "an unsolicited iocb. tag 0x%x\n",
2439 irsp->un.ulpWord[3]);
2441 if (irsp->ulpBdeCount == 2) {
2442 saveq->context3 = lpfc_sli_get_buff(phba, pring,
2443 irsp->unsli3.sli3Words[7]);
2444 if (!saveq->context3)
2445 lpfc_printf_log(phba,
2448 "0342 Ring %d Cannot find buffer for an"
2449 " unsolicited iocb. tag 0x%x\n",
2451 irsp->unsli3.sli3Words[7]);
2453 list_for_each_entry(iocbq, &saveq->list, list) {
2454 irsp = &(iocbq->iocb);
2455 if (irsp->ulpBdeCount != 0) {
2456 iocbq->context2 = lpfc_sli_get_buff(phba, pring,
2457 irsp->un.ulpWord[3]);
2458 if (!iocbq->context2)
2459 lpfc_printf_log(phba,
2462 "0343 Ring %d Cannot find "
2463 "buffer for an unsolicited iocb"
2464 ". tag 0x%x\n", pring->ringno,
2465 irsp->un.ulpWord[3]);
2467 if (irsp->ulpBdeCount == 2) {
2468 iocbq->context3 = lpfc_sli_get_buff(phba, pring,
2469 irsp->unsli3.sli3Words[7]);
2470 if (!iocbq->context3)
2471 lpfc_printf_log(phba,
2474 "0344 Ring %d Cannot find "
2475 "buffer for an unsolicited "
2478 irsp->unsli3.sli3Words[7]);
2482 if (irsp->ulpBdeCount != 0 &&
2483 (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
2484 irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
2487 /* search continue save q for same XRI */
2488 list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
2489 if (iocbq->iocb.unsli3.rcvsli3.ox_id ==
2490 saveq->iocb.unsli3.rcvsli3.ox_id) {
2491 list_add_tail(&saveq->list, &iocbq->list);
2497 list_add_tail(&saveq->clist,
2498 &pring->iocb_continue_saveq);
2499 if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
2500 list_del_init(&iocbq->clist);
2502 irsp = &(saveq->iocb);
2506 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
2507 (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
2508 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
2509 Rctl = FC_RCTL_ELS_REQ;
2512 w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
2513 Rctl = w5p->hcsw.Rctl;
2514 Type = w5p->hcsw.Type;
2516 /* Firmware Workaround */
2517 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
2518 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
2519 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
2520 Rctl = FC_RCTL_ELS_REQ;
2522 w5p->hcsw.Rctl = Rctl;
2523 w5p->hcsw.Type = Type;
2527 if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
2528 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2529 "0313 Ring %d handler: unexpected Rctl x%x "
2530 "Type x%x received\n",
2531 pring->ringno, Rctl, Type);
2537 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
2538 * @phba: Pointer to HBA context object.
2539 * @pring: Pointer to driver SLI ring object.
2540 * @prspiocb: Pointer to response iocb object.
2542 * This function looks up the iocb_lookup table to get the command iocb
2543 * corresponding to the given response iocb using the iotag of the
2544 * response iocb. This function is called with the hbalock held.
2545 * This function returns the command iocb object if it finds the command
2546 * iocb else returns NULL.
2548 static struct lpfc_iocbq *
2549 lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
2550 struct lpfc_sli_ring *pring,
2551 struct lpfc_iocbq *prspiocb)
2553 struct lpfc_iocbq *cmd_iocb = NULL;
2556 iotag = prspiocb->iocb.ulpIoTag;
2558 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2559 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2560 list_del_init(&cmd_iocb->list);
2561 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
2562 pring->txcmplq_cnt--;
2563 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
2568 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2569 "0317 iotag x%x is out off "
2570 "range: max iotag x%x wd0 x%x\n",
2571 iotag, phba->sli.last_iotag,
2572 *(((uint32_t *) &prspiocb->iocb) + 7));
2577 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2578 * @phba: Pointer to HBA context object.
2579 * @pring: Pointer to driver SLI ring object.
2582 * This function looks up the iocb_lookup table to get the command iocb
2583 * corresponding to the given iotag. This function is called with the
2585 * This function returns the command iocb object if it finds the command
2586 * iocb else returns NULL.
2588 static struct lpfc_iocbq *
2589 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
2590 struct lpfc_sli_ring *pring, uint16_t iotag)
2592 struct lpfc_iocbq *cmd_iocb;
2594 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2595 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2596 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
2597 /* remove from txcmpl queue list */
2598 list_del_init(&cmd_iocb->list);
2599 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
2600 pring->txcmplq_cnt--;
2604 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2605 "0372 iotag x%x is out off range: max iotag (x%x)\n",
2606 iotag, phba->sli.last_iotag);
2611 * lpfc_sli_process_sol_iocb - process solicited iocb completion
2612 * @phba: Pointer to HBA context object.
2613 * @pring: Pointer to driver SLI ring object.
2614 * @saveq: Pointer to the response iocb to be processed.
2616 * This function is called by the ring event handler for non-fcp
2617 * rings when there is a new response iocb in the response ring.
2618 * The caller is not required to hold any locks. This function
2619 * gets the command iocb associated with the response iocb and
2620 * calls the completion handler for the command iocb. If there
2621 * is no completion handler, the function will free the resources
2622 * associated with command iocb. If the response iocb is for
2623 * an already aborted command iocb, the status of the completion
2624 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
2625 * This function always returns 1.
2628 lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2629 struct lpfc_iocbq *saveq)
2631 struct lpfc_iocbq *cmdiocbp;
2633 unsigned long iflag;
2635 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
2636 spin_lock_irqsave(&phba->hbalock, iflag);
2637 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
2638 spin_unlock_irqrestore(&phba->hbalock, iflag);
2641 if (cmdiocbp->iocb_cmpl) {
2643 * If an ELS command failed send an event to mgmt
2646 if (saveq->iocb.ulpStatus &&
2647 (pring->ringno == LPFC_ELS_RING) &&
2648 (cmdiocbp->iocb.ulpCommand ==
2649 CMD_ELS_REQUEST64_CR))
2650 lpfc_send_els_failure_event(phba,
2654 * Post all ELS completions to the worker thread.
2655 * All other are passed to the completion callback.
2657 if (pring->ringno == LPFC_ELS_RING) {
2658 if ((phba->sli_rev < LPFC_SLI_REV4) &&
2659 (cmdiocbp->iocb_flag &
2660 LPFC_DRIVER_ABORTED)) {
2661 spin_lock_irqsave(&phba->hbalock,
2663 cmdiocbp->iocb_flag &=
2664 ~LPFC_DRIVER_ABORTED;
2665 spin_unlock_irqrestore(&phba->hbalock,
2667 saveq->iocb.ulpStatus =
2668 IOSTAT_LOCAL_REJECT;
2669 saveq->iocb.un.ulpWord[4] =
2672 /* Firmware could still be in progress
2673 * of DMAing payload, so don't free data
2674 * buffer till after a hbeat.
2676 spin_lock_irqsave(&phba->hbalock,
2678 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
2679 spin_unlock_irqrestore(&phba->hbalock,
2682 if (phba->sli_rev == LPFC_SLI_REV4) {
2683 if (saveq->iocb_flag &
2684 LPFC_EXCHANGE_BUSY) {
2685 /* Set cmdiocb flag for the
2686 * exchange busy so sgl (xri)
2687 * will not be released until
2688 * the abort xri is received
2692 &phba->hbalock, iflag);
2693 cmdiocbp->iocb_flag |=
2695 spin_unlock_irqrestore(
2696 &phba->hbalock, iflag);
2698 if (cmdiocbp->iocb_flag &
2699 LPFC_DRIVER_ABORTED) {
2701 * Clear LPFC_DRIVER_ABORTED
2702 * bit in case it was driver
2706 &phba->hbalock, iflag);
2707 cmdiocbp->iocb_flag &=
2708 ~LPFC_DRIVER_ABORTED;
2709 spin_unlock_irqrestore(
2710 &phba->hbalock, iflag);
2711 cmdiocbp->iocb.ulpStatus =
2712 IOSTAT_LOCAL_REJECT;
2713 cmdiocbp->iocb.un.ulpWord[4] =
2714 IOERR_ABORT_REQUESTED;
2716 * For SLI4, irsiocb contains
2717 * NO_XRI in sli_xritag, it
2718 * shall not affect releasing
2719 * sgl (xri) process.
2721 saveq->iocb.ulpStatus =
2722 IOSTAT_LOCAL_REJECT;
2723 saveq->iocb.un.ulpWord[4] =
2726 &phba->hbalock, iflag);
2728 LPFC_DELAY_MEM_FREE;
2729 spin_unlock_irqrestore(
2730 &phba->hbalock, iflag);
2734 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
2736 lpfc_sli_release_iocbq(phba, cmdiocbp);
2739 * Unknown initiating command based on the response iotag.
2740 * This could be the case on the ELS ring because of
2743 if (pring->ringno != LPFC_ELS_RING) {
2745 * Ring <ringno> handler: unexpected completion IoTag
2748 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2749 "0322 Ring %d handler: "
2750 "unexpected completion IoTag x%x "
2751 "Data: x%x x%x x%x x%x\n",
2753 saveq->iocb.ulpIoTag,
2754 saveq->iocb.ulpStatus,
2755 saveq->iocb.un.ulpWord[4],
2756 saveq->iocb.ulpCommand,
2757 saveq->iocb.ulpContext);
2765 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
2766 * @phba: Pointer to HBA context object.
2767 * @pring: Pointer to driver SLI ring object.
2769 * This function is called from the iocb ring event handlers when
2770 * put pointer is ahead of the get pointer for a ring. This function signal
2771 * an error attention condition to the worker thread and the worker
2772 * thread will transition the HBA to offline state.
2775 lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
2777 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2779 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
2780 * rsp ring <portRspMax>
2782 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2783 "0312 Ring %d handler: portRspPut %d "
2784 "is bigger than rsp ring %d\n",
2785 pring->ringno, le32_to_cpu(pgp->rspPutInx),
2788 phba->link_state = LPFC_HBA_ERROR;
2791 * All error attention handlers are posted to
2794 phba->work_ha |= HA_ERATT;
2795 phba->work_hs = HS_FFER3;
2797 lpfc_worker_wake_up(phba);
2803 * lpfc_poll_eratt - Error attention polling timer timeout handler
2804 * @ptr: Pointer to address of HBA context object.
2806 * This function is invoked by the Error Attention polling timer when the
2807 * timer times out. It will check the SLI Error Attention register for
2808 * possible attention events. If so, it will post an Error Attention event
2809 * and wake up worker thread to process it. Otherwise, it will set up the
2810 * Error Attention polling timer for the next poll.
2812 void lpfc_poll_eratt(unsigned long ptr)
2814 struct lpfc_hba *phba;
2817 phba = (struct lpfc_hba *)ptr;
2819 /* Check chip HA register for error event */
2820 eratt = lpfc_sli_check_eratt(phba);
2823 /* Tell the worker thread there is work to do */
2824 lpfc_worker_wake_up(phba);
2826 /* Restart the timer for next eratt poll */
2827 mod_timer(&phba->eratt_poll, jiffies +
2828 HZ * LPFC_ERATT_POLL_INTERVAL);
2834 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
2835 * @phba: Pointer to HBA context object.
2836 * @pring: Pointer to driver SLI ring object.
2837 * @mask: Host attention register mask for this ring.
2839 * This function is called from the interrupt context when there is a ring
2840 * event for the fcp ring. The caller does not hold any lock.
2841 * The function processes each response iocb in the response ring until it
2842 * finds an iocb with LE bit set and chains all the iocbs up to the iocb with
2843 * LE bit set. The function will call the completion handler of the command iocb
2844 * if the response iocb indicates a completion for a command iocb or it is
2845 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
2846 * function if this is an unsolicited iocb.
2847 * This routine presumes LPFC_FCP_RING handling and doesn't bother
2848 * to check it explicitly.
2851 lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
2852 struct lpfc_sli_ring *pring, uint32_t mask)
2854 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2855 IOCB_t *irsp = NULL;
2856 IOCB_t *entry = NULL;
2857 struct lpfc_iocbq *cmdiocbq = NULL;
2858 struct lpfc_iocbq rspiocbq;
2860 uint32_t portRspPut, portRspMax;
2862 lpfc_iocb_type type;
2863 unsigned long iflag;
2864 uint32_t rsp_cmpl = 0;
2866 spin_lock_irqsave(&phba->hbalock, iflag);
2867 pring->stats.iocb_event++;
2870 * The next available response entry should never exceed the maximum
2871 * entries. If it does, treat it as an adapter hardware error.
2873 portRspMax = pring->numRiocb;
2874 portRspPut = le32_to_cpu(pgp->rspPutInx);
2875 if (unlikely(portRspPut >= portRspMax)) {
2876 lpfc_sli_rsp_pointers_error(phba, pring);
2877 spin_unlock_irqrestore(&phba->hbalock, iflag);
2880 if (phba->fcp_ring_in_use) {
2881 spin_unlock_irqrestore(&phba->hbalock, iflag);
2884 phba->fcp_ring_in_use = 1;
2887 while (pring->rspidx != portRspPut) {
2889 * Fetch an entry off the ring and copy it into a local data
2890 * structure. The copy involves a byte-swap since the
2891 * network byte order and pci byte orders are different.
2893 entry = lpfc_resp_iocb(phba, pring);
2894 phba->last_completion_time = jiffies;
2896 if (++pring->rspidx >= portRspMax)
2899 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
2900 (uint32_t *) &rspiocbq.iocb,
2901 phba->iocb_rsp_size);
2902 INIT_LIST_HEAD(&(rspiocbq.list));
2903 irsp = &rspiocbq.iocb;
2905 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
2906 pring->stats.iocb_rsp++;
2909 if (unlikely(irsp->ulpStatus)) {
2911 * If resource errors reported from HBA, reduce
2912 * queuedepths of the SCSI device.
2914 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
2915 (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) {
2916 spin_unlock_irqrestore(&phba->hbalock, iflag);
2917 phba->lpfc_rampdown_queue_depth(phba);
2918 spin_lock_irqsave(&phba->hbalock, iflag);
2921 /* Rsp ring <ringno> error: IOCB */
2922 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2923 "0336 Rsp Ring %d error: IOCB Data: "
2924 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
2926 irsp->un.ulpWord[0],
2927 irsp->un.ulpWord[1],
2928 irsp->un.ulpWord[2],
2929 irsp->un.ulpWord[3],
2930 irsp->un.ulpWord[4],
2931 irsp->un.ulpWord[5],
2932 *(uint32_t *)&irsp->un1,
2933 *((uint32_t *)&irsp->un1 + 1));
2937 case LPFC_ABORT_IOCB:
2940 * Idle exchange closed via ABTS from port. No iocb
2941 * resources need to be recovered.
2943 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
2944 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2945 "0333 IOCB cmd 0x%x"
2946 " processed. Skipping"
2952 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
2954 if (unlikely(!cmdiocbq))
2956 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED)
2957 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
2958 if (cmdiocbq->iocb_cmpl) {
2959 spin_unlock_irqrestore(&phba->hbalock, iflag);
2960 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
2962 spin_lock_irqsave(&phba->hbalock, iflag);
2965 case LPFC_UNSOL_IOCB:
2966 spin_unlock_irqrestore(&phba->hbalock, iflag);
2967 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
2968 spin_lock_irqsave(&phba->hbalock, iflag);
2971 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
2972 char adaptermsg[LPFC_MAX_ADPTMSG];
2973 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
2974 memcpy(&adaptermsg[0], (uint8_t *) irsp,
2976 dev_warn(&((phba->pcidev)->dev),
2978 phba->brd_no, adaptermsg);
2980 /* Unknown IOCB command */
2981 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2982 "0334 Unknown IOCB command "
2983 "Data: x%x, x%x x%x x%x x%x\n",
2984 type, irsp->ulpCommand,
2993 * The response IOCB has been processed. Update the ring
2994 * pointer in SLIM. If the port response put pointer has not
2995 * been updated, sync the pgp->rspPutInx and fetch the new port
2996 * response put pointer.
2998 writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx);
3000 if (pring->rspidx == portRspPut)
3001 portRspPut = le32_to_cpu(pgp->rspPutInx);
3004 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
3005 pring->stats.iocb_rsp_full++;
3006 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3007 writel(status, phba->CAregaddr);
3008 readl(phba->CAregaddr);
3010 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3011 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3012 pring->stats.iocb_cmd_empty++;
3014 /* Force update of the local copy of cmdGetInx */
3015 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
3016 lpfc_sli_resume_iocb(phba, pring);
3018 if ((pring->lpfc_sli_cmd_available))
3019 (pring->lpfc_sli_cmd_available) (phba, pring);
3023 phba->fcp_ring_in_use = 0;
3024 spin_unlock_irqrestore(&phba->hbalock, iflag);
3029 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
3030 * @phba: Pointer to HBA context object.
3031 * @pring: Pointer to driver SLI ring object.
3032 * @rspiocbp: Pointer to driver response IOCB object.
3034 * This function is called from the worker thread when there is a slow-path
3035 * response IOCB to process. This function chains all the response iocbs until
3036 * seeing the iocb with the LE bit set. The function will call
3037 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
3038 * completion of a command iocb. The function will call the
3039 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
3040 * The function frees the resources or calls the completion handler if this
3041 * iocb is an abort completion. The function returns NULL when the response
3042 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
3043 * this function shall chain the iocb on to the iocb_continueq and return the
3044 * response iocb passed in.
3046 static struct lpfc_iocbq *
3047 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3048 struct lpfc_iocbq *rspiocbp)
3050 struct lpfc_iocbq *saveq;
3051 struct lpfc_iocbq *cmdiocbp;
3052 struct lpfc_iocbq *next_iocb;
3053 IOCB_t *irsp = NULL;
3054 uint32_t free_saveq;
3055 uint8_t iocb_cmd_type;
3056 lpfc_iocb_type type;
3057 unsigned long iflag;
3060 spin_lock_irqsave(&phba->hbalock, iflag);
3061 /* First add the response iocb to the countinueq list */
3062 list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
3063 pring->iocb_continueq_cnt++;
3065 /* Now, determine whether the list is completed for processing */
3066 irsp = &rspiocbp->iocb;
3069 * By default, the driver expects to free all resources
3070 * associated with this iocb completion.
3073 saveq = list_get_first(&pring->iocb_continueq,
3074 struct lpfc_iocbq, list);
3075 irsp = &(saveq->iocb);
3076 list_del_init(&pring->iocb_continueq);
3077 pring->iocb_continueq_cnt = 0;
3079 pring->stats.iocb_rsp++;
3082 * If resource errors reported from HBA, reduce
3083 * queuedepths of the SCSI device.
3085 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3086 (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) {
3087 spin_unlock_irqrestore(&phba->hbalock, iflag);
3088 phba->lpfc_rampdown_queue_depth(phba);
3089 spin_lock_irqsave(&phba->hbalock, iflag);
3092 if (irsp->ulpStatus) {
3093 /* Rsp ring <ringno> error: IOCB */
3094 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3095 "0328 Rsp Ring %d error: "
3100 "x%x x%x x%x x%x\n",
3102 irsp->un.ulpWord[0],
3103 irsp->un.ulpWord[1],
3104 irsp->un.ulpWord[2],
3105 irsp->un.ulpWord[3],
3106 irsp->un.ulpWord[4],
3107 irsp->un.ulpWord[5],
3108 *(((uint32_t *) irsp) + 6),
3109 *(((uint32_t *) irsp) + 7),
3110 *(((uint32_t *) irsp) + 8),
3111 *(((uint32_t *) irsp) + 9),
3112 *(((uint32_t *) irsp) + 10),
3113 *(((uint32_t *) irsp) + 11),
3114 *(((uint32_t *) irsp) + 12),
3115 *(((uint32_t *) irsp) + 13),
3116 *(((uint32_t *) irsp) + 14),
3117 *(((uint32_t *) irsp) + 15));
3121 * Fetch the IOCB command type and call the correct completion
3122 * routine. Solicited and Unsolicited IOCBs on the ELS ring
3123 * get freed back to the lpfc_iocb_list by the discovery
3126 iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
3127 type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
3130 spin_unlock_irqrestore(&phba->hbalock, iflag);
3131 rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
3132 spin_lock_irqsave(&phba->hbalock, iflag);
3135 case LPFC_UNSOL_IOCB:
3136 spin_unlock_irqrestore(&phba->hbalock, iflag);
3137 rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
3138 spin_lock_irqsave(&phba->hbalock, iflag);
3143 case LPFC_ABORT_IOCB:
3145 if (irsp->ulpCommand != CMD_XRI_ABORTED_CX)
3146 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
3149 /* Call the specified completion routine */
3150 if (cmdiocbp->iocb_cmpl) {
3151 spin_unlock_irqrestore(&phba->hbalock,
3153 (cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
3155 spin_lock_irqsave(&phba->hbalock,
3158 __lpfc_sli_release_iocbq(phba,
3163 case LPFC_UNKNOWN_IOCB:
3164 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3165 char adaptermsg[LPFC_MAX_ADPTMSG];
3166 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3167 memcpy(&adaptermsg[0], (uint8_t *)irsp,
3169 dev_warn(&((phba->pcidev)->dev),
3171 phba->brd_no, adaptermsg);
3173 /* Unknown IOCB command */
3174 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3175 "0335 Unknown IOCB "
3176 "command Data: x%x "
3187 list_for_each_entry_safe(rspiocbp, next_iocb,
3188 &saveq->list, list) {
3189 list_del(&rspiocbp->list);
3190 __lpfc_sli_release_iocbq(phba, rspiocbp);
3192 __lpfc_sli_release_iocbq(phba, saveq);
3196 spin_unlock_irqrestore(&phba->hbalock, iflag);
3201 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
3202 * @phba: Pointer to HBA context object.
3203 * @pring: Pointer to driver SLI ring object.
3204 * @mask: Host attention register mask for this ring.
3206 * This routine wraps the actual slow_ring event process routine from the
3207 * API jump table function pointer from the lpfc_hba struct.
3210 lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
3211 struct lpfc_sli_ring *pring, uint32_t mask)
3213 phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
3217 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
3218 * @phba: Pointer to HBA context object.
3219 * @pring: Pointer to driver SLI ring object.
3220 * @mask: Host attention register mask for this ring.
3222 * This function is called from the worker thread when there is a ring event
3223 * for non-fcp rings. The caller does not hold any lock. The function will
3224 * remove each response iocb in the response ring and calls the handle
3225 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3228 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
3229 struct lpfc_sli_ring *pring, uint32_t mask)
3231 struct lpfc_pgp *pgp;
3233 IOCB_t *irsp = NULL;
3234 struct lpfc_iocbq *rspiocbp = NULL;
3235 uint32_t portRspPut, portRspMax;
3236 unsigned long iflag;
3239 pgp = &phba->port_gp[pring->ringno];
3240 spin_lock_irqsave(&phba->hbalock, iflag);
3241 pring->stats.iocb_event++;
3244 * The next available response entry should never exceed the maximum
3245 * entries. If it does, treat it as an adapter hardware error.
3247 portRspMax = pring->numRiocb;
3248 portRspPut = le32_to_cpu(pgp->rspPutInx);
3249 if (portRspPut >= portRspMax) {
3251 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
3252 * rsp ring <portRspMax>
3254 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3255 "0303 Ring %d handler: portRspPut %d "
3256 "is bigger than rsp ring %d\n",
3257 pring->ringno, portRspPut, portRspMax);
3259 phba->link_state = LPFC_HBA_ERROR;
3260 spin_unlock_irqrestore(&phba->hbalock, iflag);
3262 phba->work_hs = HS_FFER3;
3263 lpfc_handle_eratt(phba);
3269 while (pring->rspidx != portRspPut) {
3271 * Build a completion list and call the appropriate handler.
3272 * The process is to get the next available response iocb, get
3273 * a free iocb from the list, copy the response data into the
3274 * free iocb, insert to the continuation list, and update the
3275 * next response index to slim. This process makes response
3276 * iocb's in the ring available to DMA as fast as possible but
3277 * pays a penalty for a copy operation. Since the iocb is
3278 * only 32 bytes, this penalty is considered small relative to
3279 * the PCI reads for register values and a slim write. When
3280 * the ulpLe field is set, the entire Command has been
3283 entry = lpfc_resp_iocb(phba, pring);
3285 phba->last_completion_time = jiffies;
3286 rspiocbp = __lpfc_sli_get_iocbq(phba);
3287 if (rspiocbp == NULL) {
3288 printk(KERN_ERR "%s: out of buffers! Failing "
3289 "completion.\n", __func__);
3293 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
3294 phba->iocb_rsp_size);
3295 irsp = &rspiocbp->iocb;
3297 if (++pring->rspidx >= portRspMax)
3300 if (pring->ringno == LPFC_ELS_RING) {
3301 lpfc_debugfs_slow_ring_trc(phba,
3302 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
3303 *(((uint32_t *) irsp) + 4),
3304 *(((uint32_t *) irsp) + 6),
3305 *(((uint32_t *) irsp) + 7));
3308 writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx);
3310 spin_unlock_irqrestore(&phba->hbalock, iflag);
3311 /* Handle the response IOCB */
3312 rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
3313 spin_lock_irqsave(&phba->hbalock, iflag);
3316 * If the port response put pointer has not been updated, sync
3317 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
3318 * response put pointer.
3320 if (pring->rspidx == portRspPut) {
3321 portRspPut = le32_to_cpu(pgp->rspPutInx);
3323 } /* while (pring->rspidx != portRspPut) */
3325 if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
3326 /* At least one response entry has been freed */
3327 pring->stats.iocb_rsp_full++;
3328 /* SET RxRE_RSP in Chip Att register */
3329 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3330 writel(status, phba->CAregaddr);
3331 readl(phba->CAregaddr); /* flush */
3333 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3334 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3335 pring->stats.iocb_cmd_empty++;
3337 /* Force update of the local copy of cmdGetInx */
3338 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
3339 lpfc_sli_resume_iocb(phba, pring);
3341 if ((pring->lpfc_sli_cmd_available))
3342 (pring->lpfc_sli_cmd_available) (phba, pring);
3346 spin_unlock_irqrestore(&phba->hbalock, iflag);
3351 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
3352 * @phba: Pointer to HBA context object.
3353 * @pring: Pointer to driver SLI ring object.
3354 * @mask: Host attention register mask for this ring.
3356 * This function is called from the worker thread when there is a pending
3357 * ELS response iocb on the driver internal slow-path response iocb worker
3358 * queue. The caller does not hold any lock. The function will remove each
3359 * response iocb from the response worker queue and calls the handle
3360 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3363 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
3364 struct lpfc_sli_ring *pring, uint32_t mask)
3366 struct lpfc_iocbq *irspiocbq;
3367 struct hbq_dmabuf *dmabuf;
3368 struct lpfc_cq_event *cq_event;
3369 unsigned long iflag;
3371 spin_lock_irqsave(&phba->hbalock, iflag);
3372 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
3373 spin_unlock_irqrestore(&phba->hbalock, iflag);
3374 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
3375 /* Get the response iocb from the head of work queue */
3376 spin_lock_irqsave(&phba->hbalock, iflag);
3377 list_remove_head(&phba->sli4_hba.sp_queue_event,
3378 cq_event, struct lpfc_cq_event, list);
3379 spin_unlock_irqrestore(&phba->hbalock, iflag);
3381 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
3382 case CQE_CODE_COMPL_WQE:
3383 irspiocbq = container_of(cq_event, struct lpfc_iocbq,
3385 /* Translate ELS WCQE to response IOCBQ */
3386 irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba,
3389 lpfc_sli_sp_handle_rspiocb(phba, pring,
3392 case CQE_CODE_RECEIVE:
3393 case CQE_CODE_RECEIVE_V1:
3394 dmabuf = container_of(cq_event, struct hbq_dmabuf,
3396 lpfc_sli4_handle_received_buffer(phba, dmabuf);
3405 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
3406 * @phba: Pointer to HBA context object.
3407 * @pring: Pointer to driver SLI ring object.
3409 * This function aborts all iocbs in the given ring and frees all the iocb
3410 * objects in txq. This function issues an abort iocb for all the iocb commands
3411 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3412 * the return of this function. The caller is not required to hold any locks.
3415 lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3417 LIST_HEAD(completions);
3418 struct lpfc_iocbq *iocb, *next_iocb;
3420 if (pring->ringno == LPFC_ELS_RING) {
3421 lpfc_fabric_abort_hba(phba);
3424 /* Error everything on txq and txcmplq
3427 spin_lock_irq(&phba->hbalock);
3428 list_splice_init(&pring->txq, &completions);
3431 /* Next issue ABTS for everything on the txcmplq */
3432 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3433 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3435 spin_unlock_irq(&phba->hbalock);
3437 /* Cancel all the IOCBs from the completions list */
3438 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3443 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
3444 * @phba: Pointer to HBA context object.
3446 * This function flushes all iocbs in the fcp ring and frees all the iocb
3447 * objects in txq and txcmplq. This function will not issue abort iocbs
3448 * for all the iocb commands in txcmplq, they will just be returned with
3449 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3450 * slot has been permanently disabled.
3453 lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba)
3457 struct lpfc_sli *psli = &phba->sli;
3458 struct lpfc_sli_ring *pring;
3460 /* Currently, only one fcp ring */
3461 pring = &psli->ring[psli->fcp_ring];
3463 spin_lock_irq(&phba->hbalock);
3464 /* Retrieve everything on txq */
3465 list_splice_init(&pring->txq, &txq);
3468 /* Retrieve everything on the txcmplq */
3469 list_splice_init(&pring->txcmplq, &txcmplq);
3470 pring->txcmplq_cnt = 0;
3472 /* Indicate the I/O queues are flushed */
3473 phba->hba_flag |= HBA_FCP_IOQ_FLUSH;
3474 spin_unlock_irq(&phba->hbalock);
3477 lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
3480 /* Flush the txcmpq */
3481 lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
3486 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
3487 * @phba: Pointer to HBA context object.
3488 * @mask: Bit mask to be checked.
3490 * This function reads the host status register and compares
3491 * with the provided bit mask to check if HBA completed
3492 * the restart. This function will wait in a loop for the
3493 * HBA to complete restart. If the HBA does not restart within
3494 * 15 iterations, the function will reset the HBA again. The
3495 * function returns 1 when HBA fail to restart otherwise returns
3499 lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
3505 /* Read the HBA Host Status Register */
3506 if (lpfc_readl(phba->HSregaddr, &status))
3510 * Check status register every 100ms for 5 retries, then every
3511 * 500ms for 5, then every 2.5 sec for 5, then reset board and
3512 * every 2.5 sec for 4.
3513 * Break our of the loop if errors occurred during init.
3515 while (((status & mask) != mask) &&
3516 !(status & HS_FFERM) &&
3528 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3529 lpfc_sli_brdrestart(phba);
3531 /* Read the HBA Host Status Register */
3532 if (lpfc_readl(phba->HSregaddr, &status)) {
3538 /* Check to see if any errors occurred during init */
3539 if ((status & HS_FFERM) || (i >= 20)) {
3540 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3541 "2751 Adapter failed to restart, "
3542 "status reg x%x, FW Data: A8 x%x AC x%x\n",
3544 readl(phba->MBslimaddr + 0xa8),
3545 readl(phba->MBslimaddr + 0xac));
3546 phba->link_state = LPFC_HBA_ERROR;
3554 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3555 * @phba: Pointer to HBA context object.
3556 * @mask: Bit mask to be checked.
3558 * This function checks the host status register to check if HBA is
3559 * ready. This function will wait in a loop for the HBA to be ready
3560 * If the HBA is not ready , the function will will reset the HBA PCI
3561 * function again. The function returns 1 when HBA fail to be ready
3562 * otherwise returns zero.
3565 lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
3570 /* Read the HBA Host Status Register */
3571 status = lpfc_sli4_post_status_check(phba);
3574 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3575 lpfc_sli_brdrestart(phba);
3576 status = lpfc_sli4_post_status_check(phba);
3579 /* Check to see if any errors occurred during init */
3581 phba->link_state = LPFC_HBA_ERROR;
3584 phba->sli4_hba.intr_enable = 0;
3590 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3591 * @phba: Pointer to HBA context object.
3592 * @mask: Bit mask to be checked.
3594 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3595 * from the API jump table function pointer from the lpfc_hba struct.
3598 lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
3600 return phba->lpfc_sli_brdready(phba, mask);
3603 #define BARRIER_TEST_PATTERN (0xdeadbeef)
3606 * lpfc_reset_barrier - Make HBA ready for HBA reset
3607 * @phba: Pointer to HBA context object.
3609 * This function is called before resetting an HBA. This function is called
3610 * with hbalock held and requests HBA to quiesce DMAs before a reset.
3612 void lpfc_reset_barrier(struct lpfc_hba *phba)
3614 uint32_t __iomem *resp_buf;
3615 uint32_t __iomem *mbox_buf;
3616 volatile uint32_t mbox;
3617 uint32_t hc_copy, ha_copy, resp_data;
3621 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
3622 if (hdrtype != 0x80 ||
3623 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
3624 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
3628 * Tell the other part of the chip to suspend temporarily all
3631 resp_buf = phba->MBslimaddr;
3633 /* Disable the error attention */
3634 if (lpfc_readl(phba->HCregaddr, &hc_copy))
3636 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
3637 readl(phba->HCregaddr); /* flush */
3638 phba->link_flag |= LS_IGNORE_ERATT;
3640 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3642 if (ha_copy & HA_ERATT) {
3643 /* Clear Chip error bit */
3644 writel(HA_ERATT, phba->HAregaddr);
3645 phba->pport->stopped = 1;
3649 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
3650 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
3652 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
3653 mbox_buf = phba->MBslimaddr;
3654 writel(mbox, mbox_buf);
3656 for (i = 0; i < 50; i++) {
3657 if (lpfc_readl((resp_buf + 1), &resp_data))
3659 if (resp_data != ~(BARRIER_TEST_PATTERN))
3665 if (lpfc_readl((resp_buf + 1), &resp_data))
3667 if (resp_data != ~(BARRIER_TEST_PATTERN)) {
3668 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
3669 phba->pport->stopped)
3675 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
3677 for (i = 0; i < 500; i++) {
3678 if (lpfc_readl(resp_buf, &resp_data))
3680 if (resp_data != mbox)
3689 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3691 if (!(ha_copy & HA_ERATT))
3697 if (readl(phba->HAregaddr) & HA_ERATT) {
3698 writel(HA_ERATT, phba->HAregaddr);
3699 phba->pport->stopped = 1;
3703 phba->link_flag &= ~LS_IGNORE_ERATT;
3704 writel(hc_copy, phba->HCregaddr);
3705 readl(phba->HCregaddr); /* flush */
3709 * lpfc_sli_brdkill - Issue a kill_board mailbox command
3710 * @phba: Pointer to HBA context object.
3712 * This function issues a kill_board mailbox command and waits for
3713 * the error attention interrupt. This function is called for stopping
3714 * the firmware processing. The caller is not required to hold any
3715 * locks. This function calls lpfc_hba_down_post function to free
3716 * any pending commands after the kill. The function will return 1 when it
3717 * fails to kill the board else will return 0.
3720 lpfc_sli_brdkill(struct lpfc_hba *phba)
3722 struct lpfc_sli *psli;
3732 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3733 "0329 Kill HBA Data: x%x x%x\n",
3734 phba->pport->port_state, psli->sli_flag);
3736 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3740 /* Disable the error attention */
3741 spin_lock_irq(&phba->hbalock);
3742 if (lpfc_readl(phba->HCregaddr, &status)) {
3743 spin_unlock_irq(&phba->hbalock);
3744 mempool_free(pmb, phba->mbox_mem_pool);
3747 status &= ~HC_ERINT_ENA;
3748 writel(status, phba->HCregaddr);
3749 readl(phba->HCregaddr); /* flush */
3750 phba->link_flag |= LS_IGNORE_ERATT;
3751 spin_unlock_irq(&phba->hbalock);
3753 lpfc_kill_board(phba, pmb);
3754 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3755 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3757 if (retval != MBX_SUCCESS) {
3758 if (retval != MBX_BUSY)
3759 mempool_free(pmb, phba->mbox_mem_pool);
3760 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3761 "2752 KILL_BOARD command failed retval %d\n",
3763 spin_lock_irq(&phba->hbalock);
3764 phba->link_flag &= ~LS_IGNORE_ERATT;
3765 spin_unlock_irq(&phba->hbalock);
3769 spin_lock_irq(&phba->hbalock);
3770 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
3771 spin_unlock_irq(&phba->hbalock);
3773 mempool_free(pmb, phba->mbox_mem_pool);
3775 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
3776 * attention every 100ms for 3 seconds. If we don't get ERATT after
3777 * 3 seconds we still set HBA_ERROR state because the status of the
3778 * board is now undefined.
3780 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3782 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
3784 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3788 del_timer_sync(&psli->mbox_tmo);
3789 if (ha_copy & HA_ERATT) {
3790 writel(HA_ERATT, phba->HAregaddr);
3791 phba->pport->stopped = 1;
3793 spin_lock_irq(&phba->hbalock);
3794 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
3795 psli->mbox_active = NULL;
3796 phba->link_flag &= ~LS_IGNORE_ERATT;
3797 spin_unlock_irq(&phba->hbalock);
3799 lpfc_hba_down_post(phba);
3800 phba->link_state = LPFC_HBA_ERROR;
3802 return ha_copy & HA_ERATT ? 0 : 1;
3806 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
3807 * @phba: Pointer to HBA context object.
3809 * This function resets the HBA by writing HC_INITFF to the control
3810 * register. After the HBA resets, this function resets all the iocb ring
3811 * indices. This function disables PCI layer parity checking during
3813 * This function returns 0 always.
3814 * The caller is not required to hold any locks.
3817 lpfc_sli_brdreset(struct lpfc_hba *phba)
3819 struct lpfc_sli *psli;
3820 struct lpfc_sli_ring *pring;
3827 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3828 "0325 Reset HBA Data: x%x x%x\n",
3829 phba->pport->port_state, psli->sli_flag);
3831 /* perform board reset */
3832 phba->fc_eventTag = 0;
3833 phba->link_events = 0;
3834 phba->pport->fc_myDID = 0;
3835 phba->pport->fc_prevDID = 0;
3837 /* Turn off parity checking and serr during the physical reset */
3838 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
3839 pci_write_config_word(phba->pcidev, PCI_COMMAND,
3841 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
3843 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
3845 /* Now toggle INITFF bit in the Host Control Register */
3846 writel(HC_INITFF, phba->HCregaddr);
3848 readl(phba->HCregaddr); /* flush */
3849 writel(0, phba->HCregaddr);
3850 readl(phba->HCregaddr); /* flush */
3852 /* Restore PCI cmd register */
3853 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
3855 /* Initialize relevant SLI info */
3856 for (i = 0; i < psli->num_rings; i++) {
3857 pring = &psli->ring[i];
3860 pring->next_cmdidx = 0;
3861 pring->local_getidx = 0;
3863 pring->missbufcnt = 0;
3866 phba->link_state = LPFC_WARM_START;
3871 * lpfc_sli4_brdreset - Reset a sli-4 HBA
3872 * @phba: Pointer to HBA context object.
3874 * This function resets a SLI4 HBA. This function disables PCI layer parity
3875 * checking during resets the device. The caller is not required to hold
3878 * This function returns 0 always.
3881 lpfc_sli4_brdreset(struct lpfc_hba *phba)
3883 struct lpfc_sli *psli = &phba->sli;
3887 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3888 "0295 Reset HBA Data: x%x x%x\n",
3889 phba->pport->port_state, psli->sli_flag);
3891 /* perform board reset */
3892 phba->fc_eventTag = 0;
3893 phba->link_events = 0;
3894 phba->pport->fc_myDID = 0;
3895 phba->pport->fc_prevDID = 0;
3897 spin_lock_irq(&phba->hbalock);
3898 psli->sli_flag &= ~(LPFC_PROCESS_LA);
3899 phba->fcf.fcf_flag = 0;
3900 spin_unlock_irq(&phba->hbalock);
3902 /* Now physically reset the device */
3903 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3904 "0389 Performing PCI function reset!\n");
3906 /* Turn off parity checking and serr during the physical reset */
3907 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
3908 pci_write_config_word(phba->pcidev, PCI_COMMAND, (cfg_value &
3909 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
3911 /* Perform FCoE PCI function reset */
3912 lpfc_sli4_queue_destroy(phba);
3913 lpfc_pci_function_reset(phba);
3915 /* Restore PCI cmd register */
3916 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
3922 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
3923 * @phba: Pointer to HBA context object.
3925 * This function is called in the SLI initialization code path to
3926 * restart the HBA. The caller is not required to hold any lock.
3927 * This function writes MBX_RESTART mailbox command to the SLIM and
3928 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
3929 * function to free any pending commands. The function enables
3930 * POST only during the first initialization. The function returns zero.
3931 * The function does not guarantee completion of MBX_RESTART mailbox
3932 * command before the return of this function.
3935 lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
3938 struct lpfc_sli *psli;
3939 volatile uint32_t word0;
3940 void __iomem *to_slim;
3941 uint32_t hba_aer_enabled;
3943 spin_lock_irq(&phba->hbalock);
3945 /* Take PCIe device Advanced Error Reporting (AER) state */
3946 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
3951 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3952 "0337 Restart HBA Data: x%x x%x\n",
3953 phba->pport->port_state, psli->sli_flag);
3956 mb = (MAILBOX_t *) &word0;
3957 mb->mbxCommand = MBX_RESTART;
3960 lpfc_reset_barrier(phba);
3962 to_slim = phba->MBslimaddr;
3963 writel(*(uint32_t *) mb, to_slim);
3964 readl(to_slim); /* flush */
3966 /* Only skip post after fc_ffinit is completed */
3967 if (phba->pport->port_state)
3968 word0 = 1; /* This is really setting up word1 */
3970 word0 = 0; /* This is really setting up word1 */
3971 to_slim = phba->MBslimaddr + sizeof (uint32_t);
3972 writel(*(uint32_t *) mb, to_slim);
3973 readl(to_slim); /* flush */
3975 lpfc_sli_brdreset(phba);
3976 phba->pport->stopped = 0;
3977 phba->link_state = LPFC_INIT_START;
3979 spin_unlock_irq(&phba->hbalock);
3981 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
3982 psli->stats_start = get_seconds();
3984 /* Give the INITFF and Post time to settle. */
3987 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
3988 if (hba_aer_enabled)
3989 pci_disable_pcie_error_reporting(phba->pcidev);
3991 lpfc_hba_down_post(phba);
3997 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
3998 * @phba: Pointer to HBA context object.
4000 * This function is called in the SLI initialization code path to restart
4001 * a SLI4 HBA. The caller is not required to hold any lock.
4002 * At the end of the function, it calls lpfc_hba_down_post function to
4003 * free any pending commands.
4006 lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
4008 struct lpfc_sli *psli = &phba->sli;
4009 uint32_t hba_aer_enabled;
4012 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4013 "0296 Restart HBA Data: x%x x%x\n",
4014 phba->pport->port_state, psli->sli_flag);
4016 /* Take PCIe device Advanced Error Reporting (AER) state */
4017 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4019 lpfc_sli4_brdreset(phba);
4021 spin_lock_irq(&phba->hbalock);
4022 phba->pport->stopped = 0;
4023 phba->link_state = LPFC_INIT_START;
4025 spin_unlock_irq(&phba->hbalock);
4027 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4028 psli->stats_start = get_seconds();
4030 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4031 if (hba_aer_enabled)
4032 pci_disable_pcie_error_reporting(phba->pcidev);
4034 lpfc_hba_down_post(phba);
4040 * lpfc_sli_brdrestart - Wrapper func for restarting hba
4041 * @phba: Pointer to HBA context object.
4043 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
4044 * API jump table function pointer from the lpfc_hba struct.
4047 lpfc_sli_brdrestart(struct lpfc_hba *phba)
4049 return phba->lpfc_sli_brdrestart(phba);
4053 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
4054 * @phba: Pointer to HBA context object.
4056 * This function is called after a HBA restart to wait for successful
4057 * restart of the HBA. Successful restart of the HBA is indicated by
4058 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
4059 * iteration, the function will restart the HBA again. The function returns
4060 * zero if HBA successfully restarted else returns negative error code.
4063 lpfc_sli_chipset_init(struct lpfc_hba *phba)
4065 uint32_t status, i = 0;
4067 /* Read the HBA Host Status Register */
4068 if (lpfc_readl(phba->HSregaddr, &status))
4071 /* Check status register to see what current state is */
4073 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
4075 /* Check every 10ms for 10 retries, then every 100ms for 90
4076 * retries, then every 1 sec for 50 retires for a total of
4077 * ~60 seconds before reset the board again and check every
4078 * 1 sec for 50 retries. The up to 60 seconds before the
4079 * board ready is required by the Falcon FIPS zeroization
4080 * complete, and any reset the board in between shall cause
4081 * restart of zeroization, further delay the board ready.
4084 /* Adapter failed to init, timeout, status reg
4086 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4087 "0436 Adapter failed to init, "
4088 "timeout, status reg x%x, "
4089 "FW Data: A8 x%x AC x%x\n", status,
4090 readl(phba->MBslimaddr + 0xa8),
4091 readl(phba->MBslimaddr + 0xac));
4092 phba->link_state = LPFC_HBA_ERROR;
4096 /* Check to see if any errors occurred during init */
4097 if (status & HS_FFERM) {
4098 /* ERROR: During chipset initialization */
4099 /* Adapter failed to init, chipset, status reg
4101 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4102 "0437 Adapter failed to init, "
4103 "chipset, status reg x%x, "
4104 "FW Data: A8 x%x AC x%x\n", status,
4105 readl(phba->MBslimaddr + 0xa8),
4106 readl(phba->MBslimaddr + 0xac));
4107 phba->link_state = LPFC_HBA_ERROR;
4120 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4121 lpfc_sli_brdrestart(phba);
4123 /* Read the HBA Host Status Register */
4124 if (lpfc_readl(phba->HSregaddr, &status))
4128 /* Check to see if any errors occurred during init */
4129 if (status & HS_FFERM) {
4130 /* ERROR: During chipset initialization */
4131 /* Adapter failed to init, chipset, status reg <status> */
4132 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4133 "0438 Adapter failed to init, chipset, "
4135 "FW Data: A8 x%x AC x%x\n", status,
4136 readl(phba->MBslimaddr + 0xa8),
4137 readl(phba->MBslimaddr + 0xac));
4138 phba->link_state = LPFC_HBA_ERROR;
4142 /* Clear all interrupt enable conditions */
4143 writel(0, phba->HCregaddr);
4144 readl(phba->HCregaddr); /* flush */
4146 /* setup host attn register */
4147 writel(0xffffffff, phba->HAregaddr);
4148 readl(phba->HAregaddr); /* flush */
4153 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
4155 * This function calculates and returns the number of HBQs required to be
4159 lpfc_sli_hbq_count(void)
4161 return ARRAY_SIZE(lpfc_hbq_defs);
4165 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
4167 * This function adds the number of hbq entries in every HBQ to get
4168 * the total number of hbq entries required for the HBA and returns
4172 lpfc_sli_hbq_entry_count(void)
4174 int hbq_count = lpfc_sli_hbq_count();
4178 for (i = 0; i < hbq_count; ++i)
4179 count += lpfc_hbq_defs[i]->entry_count;
4184 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
4186 * This function calculates amount of memory required for all hbq entries
4187 * to be configured and returns the total memory required.
4190 lpfc_sli_hbq_size(void)
4192 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
4196 * lpfc_sli_hbq_setup - configure and initialize HBQs
4197 * @phba: Pointer to HBA context object.
4199 * This function is called during the SLI initialization to configure
4200 * all the HBQs and post buffers to the HBQ. The caller is not
4201 * required to hold any locks. This function will return zero if successful
4202 * else it will return negative error code.
4205 lpfc_sli_hbq_setup(struct lpfc_hba *phba)
4207 int hbq_count = lpfc_sli_hbq_count();
4211 uint32_t hbq_entry_index;
4213 /* Get a Mailbox buffer to setup mailbox
4214 * commands for HBA initialization
4216 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4223 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
4224 phba->link_state = LPFC_INIT_MBX_CMDS;
4225 phba->hbq_in_use = 1;
4227 hbq_entry_index = 0;
4228 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
4229 phba->hbqs[hbqno].next_hbqPutIdx = 0;
4230 phba->hbqs[hbqno].hbqPutIdx = 0;
4231 phba->hbqs[hbqno].local_hbqGetIdx = 0;
4232 phba->hbqs[hbqno].entry_count =
4233 lpfc_hbq_defs[hbqno]->entry_count;
4234 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
4235 hbq_entry_index, pmb);
4236 hbq_entry_index += phba->hbqs[hbqno].entry_count;
4238 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
4239 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
4240 mbxStatus <status>, ring <num> */
4242 lpfc_printf_log(phba, KERN_ERR,
4243 LOG_SLI | LOG_VPORT,
4244 "1805 Adapter failed to init. "
4245 "Data: x%x x%x x%x\n",
4247 pmbox->mbxStatus, hbqno);
4249 phba->link_state = LPFC_HBA_ERROR;
4250 mempool_free(pmb, phba->mbox_mem_pool);
4254 phba->hbq_count = hbq_count;
4256 mempool_free(pmb, phba->mbox_mem_pool);
4258 /* Initially populate or replenish the HBQs */
4259 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
4260 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
4265 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
4266 * @phba: Pointer to HBA context object.
4268 * This function is called during the SLI initialization to configure
4269 * all the HBQs and post buffers to the HBQ. The caller is not
4270 * required to hold any locks. This function will return zero if successful
4271 * else it will return negative error code.
4274 lpfc_sli4_rb_setup(struct lpfc_hba *phba)
4276 phba->hbq_in_use = 1;
4277 phba->hbqs[0].entry_count = lpfc_hbq_defs[0]->entry_count;
4278 phba->hbq_count = 1;
4279 /* Initially populate or replenish the HBQs */
4280 lpfc_sli_hbqbuf_init_hbqs(phba, 0);
4285 * lpfc_sli_config_port - Issue config port mailbox command
4286 * @phba: Pointer to HBA context object.
4287 * @sli_mode: sli mode - 2/3
4289 * This function is called by the sli intialization code path
4290 * to issue config_port mailbox command. This function restarts the
4291 * HBA firmware and issues a config_port mailbox command to configure
4292 * the SLI interface in the sli mode specified by sli_mode
4293 * variable. The caller is not required to hold any locks.
4294 * The function returns 0 if successful, else returns negative error
4298 lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
4301 uint32_t resetcount = 0, rc = 0, done = 0;
4303 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4305 phba->link_state = LPFC_HBA_ERROR;
4309 phba->sli_rev = sli_mode;
4310 while (resetcount < 2 && !done) {
4311 spin_lock_irq(&phba->hbalock);
4312 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
4313 spin_unlock_irq(&phba->hbalock);
4314 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4315 lpfc_sli_brdrestart(phba);
4316 rc = lpfc_sli_chipset_init(phba);
4320 spin_lock_irq(&phba->hbalock);
4321 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4322 spin_unlock_irq(&phba->hbalock);
4325 /* Call pre CONFIG_PORT mailbox command initialization. A
4326 * value of 0 means the call was successful. Any other
4327 * nonzero value is a failure, but if ERESTART is returned,
4328 * the driver may reset the HBA and try again.
4330 rc = lpfc_config_port_prep(phba);
4331 if (rc == -ERESTART) {
4332 phba->link_state = LPFC_LINK_UNKNOWN;
4337 phba->link_state = LPFC_INIT_MBX_CMDS;
4338 lpfc_config_port(phba, pmb);
4339 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
4340 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
4341 LPFC_SLI3_HBQ_ENABLED |
4342 LPFC_SLI3_CRP_ENABLED |
4343 LPFC_SLI3_BG_ENABLED |
4344 LPFC_SLI3_DSS_ENABLED);
4345 if (rc != MBX_SUCCESS) {
4346 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4347 "0442 Adapter failed to init, mbxCmd x%x "
4348 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
4349 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
4350 spin_lock_irq(&phba->hbalock);
4351 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
4352 spin_unlock_irq(&phba->hbalock);
4355 /* Allow asynchronous mailbox command to go through */
4356 spin_lock_irq(&phba->hbalock);
4357 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
4358 spin_unlock_irq(&phba->hbalock);
4361 if ((pmb->u.mb.un.varCfgPort.casabt == 1) &&
4362 (pmb->u.mb.un.varCfgPort.gasabt == 0))
4363 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4364 "3110 Port did not grant ASABT\n");
4369 goto do_prep_failed;
4371 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
4372 if (!pmb->u.mb.un.varCfgPort.cMA) {
4374 goto do_prep_failed;
4376 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
4377 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
4378 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
4379 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
4380 phba->max_vpi : phba->max_vports;
4384 phba->fips_level = 0;
4385 phba->fips_spec_rev = 0;
4386 if (pmb->u.mb.un.varCfgPort.gdss) {
4387 phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
4388 phba->fips_level = pmb->u.mb.un.varCfgPort.fips_level;
4389 phba->fips_spec_rev = pmb->u.mb.un.varCfgPort.fips_rev;
4390 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4391 "2850 Security Crypto Active. FIPS x%d "
4393 phba->fips_level, phba->fips_spec_rev);
4395 if (pmb->u.mb.un.varCfgPort.sec_err) {
4396 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4397 "2856 Config Port Security Crypto "
4399 pmb->u.mb.un.varCfgPort.sec_err);
4401 if (pmb->u.mb.un.varCfgPort.gerbm)
4402 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
4403 if (pmb->u.mb.un.varCfgPort.gcrp)
4404 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
4406 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
4407 phba->port_gp = phba->mbox->us.s3_pgp.port;
4409 if (phba->cfg_enable_bg) {
4410 if (pmb->u.mb.un.varCfgPort.gbg)
4411 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
4413 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4414 "0443 Adapter did not grant "
4418 phba->hbq_get = NULL;
4419 phba->port_gp = phba->mbox->us.s2.port;
4423 mempool_free(pmb, phba->mbox_mem_pool);
4429 * lpfc_sli_hba_setup - SLI intialization function
4430 * @phba: Pointer to HBA context object.
4432 * This function is the main SLI intialization function. This function
4433 * is called by the HBA intialization code, HBA reset code and HBA
4434 * error attention handler code. Caller is not required to hold any
4435 * locks. This function issues config_port mailbox command to configure
4436 * the SLI, setup iocb rings and HBQ rings. In the end the function
4437 * calls the config_port_post function to issue init_link mailbox
4438 * command and to start the discovery. The function will return zero
4439 * if successful, else it will return negative error code.
4442 lpfc_sli_hba_setup(struct lpfc_hba *phba)
4448 switch (lpfc_sli_mode) {
4450 if (phba->cfg_enable_npiv) {
4451 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4452 "1824 NPIV enabled: Override lpfc_sli_mode "
4453 "parameter (%d) to auto (0).\n",
4463 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4464 "1819 Unrecognized lpfc_sli_mode "
4465 "parameter: %d.\n", lpfc_sli_mode);
4470 rc = lpfc_sli_config_port(phba, mode);
4472 if (rc && lpfc_sli_mode == 3)
4473 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4474 "1820 Unable to select SLI-3. "
4475 "Not supported by adapter.\n");
4476 if (rc && mode != 2)
4477 rc = lpfc_sli_config_port(phba, 2);
4479 goto lpfc_sli_hba_setup_error;
4481 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4482 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
4483 rc = pci_enable_pcie_error_reporting(phba->pcidev);
4485 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4486 "2709 This device supports "
4487 "Advanced Error Reporting (AER)\n");
4488 spin_lock_irq(&phba->hbalock);
4489 phba->hba_flag |= HBA_AER_ENABLED;
4490 spin_unlock_irq(&phba->hbalock);
4492 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4493 "2708 This device does not support "
4494 "Advanced Error Reporting (AER)\n");
4495 phba->cfg_aer_support = 0;
4499 if (phba->sli_rev == 3) {
4500 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
4501 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
4503 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
4504 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
4505 phba->sli3_options = 0;
4508 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4509 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
4510 phba->sli_rev, phba->max_vpi);
4511 rc = lpfc_sli_ring_map(phba);
4514 goto lpfc_sli_hba_setup_error;
4516 /* Initialize VPIs. */
4517 if (phba->sli_rev == LPFC_SLI_REV3) {
4519 * The VPI bitmask and physical ID array are allocated
4520 * and initialized once only - at driver load. A port
4521 * reset doesn't need to reinitialize this memory.
4523 if ((phba->vpi_bmask == NULL) && (phba->vpi_ids == NULL)) {
4524 longs = (phba->max_vpi + BITS_PER_LONG) / BITS_PER_LONG;
4525 phba->vpi_bmask = kzalloc(longs * sizeof(unsigned long),
4527 if (!phba->vpi_bmask) {
4529 goto lpfc_sli_hba_setup_error;
4532 phba->vpi_ids = kzalloc(
4533 (phba->max_vpi+1) * sizeof(uint16_t),
4535 if (!phba->vpi_ids) {
4536 kfree(phba->vpi_bmask);
4538 goto lpfc_sli_hba_setup_error;
4540 for (i = 0; i < phba->max_vpi; i++)
4541 phba->vpi_ids[i] = i;
4546 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
4547 rc = lpfc_sli_hbq_setup(phba);
4549 goto lpfc_sli_hba_setup_error;
4551 spin_lock_irq(&phba->hbalock);
4552 phba->sli.sli_flag |= LPFC_PROCESS_LA;
4553 spin_unlock_irq(&phba->hbalock);
4555 rc = lpfc_config_port_post(phba);
4557 goto lpfc_sli_hba_setup_error;
4561 lpfc_sli_hba_setup_error:
4562 phba->link_state = LPFC_HBA_ERROR;
4563 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4564 "0445 Firmware initialization failed\n");
4569 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
4570 * @phba: Pointer to HBA context object.
4571 * @mboxq: mailbox pointer.
4572 * This function issue a dump mailbox command to read config region
4573 * 23 and parse the records in the region and populate driver
4577 lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba)
4579 LPFC_MBOXQ_t *mboxq;
4580 struct lpfc_dmabuf *mp;
4581 struct lpfc_mqe *mqe;
4582 uint32_t data_length;
4585 /* Program the default value of vlan_id and fc_map */
4586 phba->valid_vlan = 0;
4587 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4588 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4589 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4591 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4595 mqe = &mboxq->u.mqe;
4596 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq)) {
4598 goto out_free_mboxq;
4601 mp = (struct lpfc_dmabuf *) mboxq->context1;
4602 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4604 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4605 "(%d):2571 Mailbox cmd x%x Status x%x "
4606 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4607 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4608 "CQ: x%x x%x x%x x%x\n",
4609 mboxq->vport ? mboxq->vport->vpi : 0,
4610 bf_get(lpfc_mqe_command, mqe),
4611 bf_get(lpfc_mqe_status, mqe),
4612 mqe->un.mb_words[0], mqe->un.mb_words[1],
4613 mqe->un.mb_words[2], mqe->un.mb_words[3],
4614 mqe->un.mb_words[4], mqe->un.mb_words[5],
4615 mqe->un.mb_words[6], mqe->un.mb_words[7],
4616 mqe->un.mb_words[8], mqe->un.mb_words[9],
4617 mqe->un.mb_words[10], mqe->un.mb_words[11],
4618 mqe->un.mb_words[12], mqe->un.mb_words[13],
4619 mqe->un.mb_words[14], mqe->un.mb_words[15],
4620 mqe->un.mb_words[16], mqe->un.mb_words[50],
4622 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
4623 mboxq->mcqe.trailer);
4626 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4629 goto out_free_mboxq;
4631 data_length = mqe->un.mb_words[5];
4632 if (data_length > DMP_RGN23_SIZE) {
4633 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4636 goto out_free_mboxq;
4639 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
4640 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4645 mempool_free(mboxq, phba->mbox_mem_pool);
4650 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
4651 * @phba: pointer to lpfc hba data structure.
4652 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
4653 * @vpd: pointer to the memory to hold resulting port vpd data.
4654 * @vpd_size: On input, the number of bytes allocated to @vpd.
4655 * On output, the number of data bytes in @vpd.
4657 * This routine executes a READ_REV SLI4 mailbox command. In
4658 * addition, this routine gets the port vpd data.
4662 * -ENOMEM - could not allocated memory.
4665 lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
4666 uint8_t *vpd, uint32_t *vpd_size)
4670 struct lpfc_dmabuf *dmabuf;
4671 struct lpfc_mqe *mqe;
4673 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4678 * Get a DMA buffer for the vpd data resulting from the READ_REV
4681 dma_size = *vpd_size;
4682 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4686 if (!dmabuf->virt) {
4690 memset(dmabuf->virt, 0, dma_size);
4693 * The SLI4 implementation of READ_REV conflicts at word1,
4694 * bits 31:16 and SLI4 adds vpd functionality not present
4695 * in SLI3. This code corrects the conflicts.
4697 lpfc_read_rev(phba, mboxq);
4698 mqe = &mboxq->u.mqe;
4699 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
4700 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
4701 mqe->un.read_rev.word1 &= 0x0000FFFF;
4702 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
4703 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
4705 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4707 dma_free_coherent(&phba->pcidev->dev, dma_size,
4708 dmabuf->virt, dmabuf->phys);
4714 * The available vpd length cannot be bigger than the
4715 * DMA buffer passed to the port. Catch the less than
4716 * case and update the caller's size.
4718 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
4719 *vpd_size = mqe->un.read_rev.avail_vpd_len;
4721 memcpy(vpd, dmabuf->virt, *vpd_size);
4723 dma_free_coherent(&phba->pcidev->dev, dma_size,
4724 dmabuf->virt, dmabuf->phys);
4730 * lpfc_sli4_retrieve_pport_name - Retrieve SLI4 device physical port name
4731 * @phba: pointer to lpfc hba data structure.
4733 * This routine retrieves SLI4 device physical port name this PCI function
4738 * otherwise - failed to retrieve physical port name
4741 lpfc_sli4_retrieve_pport_name(struct lpfc_hba *phba)
4743 LPFC_MBOXQ_t *mboxq;
4744 struct lpfc_mbx_get_cntl_attributes *mbx_cntl_attr;
4745 struct lpfc_controller_attribute *cntl_attr;
4746 struct lpfc_mbx_get_port_name *get_port_name;
4747 void *virtaddr = NULL;
4748 uint32_t alloclen, reqlen;
4749 uint32_t shdr_status, shdr_add_status;
4750 union lpfc_sli4_cfg_shdr *shdr;
4751 char cport_name = 0;
4754 /* We assume nothing at this point */
4755 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
4756 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_NON;
4758 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4761 /* obtain link type and link number via READ_CONFIG */
4762 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
4763 lpfc_sli4_read_config(phba);
4764 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL)
4765 goto retrieve_ppname;
4767 /* obtain link type and link number via COMMON_GET_CNTL_ATTRIBUTES */
4768 reqlen = sizeof(struct lpfc_mbx_get_cntl_attributes);
4769 alloclen = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
4770 LPFC_MBOX_OPCODE_GET_CNTL_ATTRIBUTES, reqlen,
4771 LPFC_SLI4_MBX_NEMBED);
4772 if (alloclen < reqlen) {
4773 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4774 "3084 Allocated DMA memory size (%d) is "
4775 "less than the requested DMA memory size "
4776 "(%d)\n", alloclen, reqlen);
4778 goto out_free_mboxq;
4780 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4781 virtaddr = mboxq->sge_array->addr[0];
4782 mbx_cntl_attr = (struct lpfc_mbx_get_cntl_attributes *)virtaddr;
4783 shdr = &mbx_cntl_attr->cfg_shdr;
4784 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
4785 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
4786 if (shdr_status || shdr_add_status || rc) {
4787 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4788 "3085 Mailbox x%x (x%x/x%x) failed, "
4789 "rc:x%x, status:x%x, add_status:x%x\n",
4790 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4791 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
4792 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
4793 rc, shdr_status, shdr_add_status);
4795 goto out_free_mboxq;
4797 cntl_attr = &mbx_cntl_attr->cntl_attr;
4798 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
4799 phba->sli4_hba.lnk_info.lnk_tp =
4800 bf_get(lpfc_cntl_attr_lnk_type, cntl_attr);
4801 phba->sli4_hba.lnk_info.lnk_no =
4802 bf_get(lpfc_cntl_attr_lnk_numb, cntl_attr);
4803 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4804 "3086 lnk_type:%d, lnk_numb:%d\n",
4805 phba->sli4_hba.lnk_info.lnk_tp,
4806 phba->sli4_hba.lnk_info.lnk_no);
4809 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
4810 LPFC_MBOX_OPCODE_GET_PORT_NAME,
4811 sizeof(struct lpfc_mbx_get_port_name) -
4812 sizeof(struct lpfc_sli4_cfg_mhdr),
4813 LPFC_SLI4_MBX_EMBED);
4814 get_port_name = &mboxq->u.mqe.un.get_port_name;
4815 shdr = (union lpfc_sli4_cfg_shdr *)&get_port_name->header.cfg_shdr;
4816 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_OPCODE_VERSION_1);
4817 bf_set(lpfc_mbx_get_port_name_lnk_type, &get_port_name->u.request,
4818 phba->sli4_hba.lnk_info.lnk_tp);
4819 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4820 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
4821 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
4822 if (shdr_status || shdr_add_status || rc) {
4823 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4824 "3087 Mailbox x%x (x%x/x%x) failed: "
4825 "rc:x%x, status:x%x, add_status:x%x\n",
4826 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4827 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
4828 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
4829 rc, shdr_status, shdr_add_status);
4831 goto out_free_mboxq;
4833 switch (phba->sli4_hba.lnk_info.lnk_no) {
4834 case LPFC_LINK_NUMBER_0:
4835 cport_name = bf_get(lpfc_mbx_get_port_name_name0,
4836 &get_port_name->u.response);
4837 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4839 case LPFC_LINK_NUMBER_1:
4840 cport_name = bf_get(lpfc_mbx_get_port_name_name1,
4841 &get_port_name->u.response);
4842 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4844 case LPFC_LINK_NUMBER_2:
4845 cport_name = bf_get(lpfc_mbx_get_port_name_name2,
4846 &get_port_name->u.response);
4847 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4849 case LPFC_LINK_NUMBER_3:
4850 cport_name = bf_get(lpfc_mbx_get_port_name_name3,
4851 &get_port_name->u.response);
4852 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4858 if (phba->sli4_hba.pport_name_sta == LPFC_SLI4_PPNAME_GET) {
4859 phba->Port[0] = cport_name;
4860 phba->Port[1] = '\0';
4861 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4862 "3091 SLI get port name: %s\n", phba->Port);
4866 if (rc != MBX_TIMEOUT) {
4867 if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
4868 lpfc_sli4_mbox_cmd_free(phba, mboxq);
4870 mempool_free(mboxq, phba->mbox_mem_pool);
4876 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
4877 * @phba: pointer to lpfc hba data structure.
4879 * This routine is called to explicitly arm the SLI4 device's completion and
4883 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
4887 lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM);
4888 lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM);
4890 if (phba->sli4_hba.fcp_cq) {
4892 lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[fcp_eqidx],
4894 while (++fcp_eqidx < phba->cfg_fcp_eq_count);
4896 lpfc_sli4_eq_release(phba->sli4_hba.sp_eq, LPFC_QUEUE_REARM);
4897 if (phba->sli4_hba.fp_eq) {
4898 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count;
4900 lpfc_sli4_eq_release(phba->sli4_hba.fp_eq[fcp_eqidx],
4906 * lpfc_sli4_get_avail_extnt_rsrc - Get available resource extent count.
4907 * @phba: Pointer to HBA context object.
4908 * @type: The resource extent type.
4909 * @extnt_count: buffer to hold port available extent count.
4910 * @extnt_size: buffer to hold element count per extent.
4912 * This function calls the port and retrievs the number of available
4913 * extents and their size for a particular extent type.
4915 * Returns: 0 if successful. Nonzero otherwise.
4918 lpfc_sli4_get_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type,
4919 uint16_t *extnt_count, uint16_t *extnt_size)
4924 struct lpfc_mbx_get_rsrc_extent_info *rsrc_info;
4927 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4931 /* Find out how many extents are available for this resource type */
4932 length = (sizeof(struct lpfc_mbx_get_rsrc_extent_info) -
4933 sizeof(struct lpfc_sli4_cfg_mhdr));
4934 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
4935 LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO,
4936 length, LPFC_SLI4_MBX_EMBED);
4938 /* Send an extents count of 0 - the GET doesn't use it. */
4939 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
4940 LPFC_SLI4_MBX_EMBED);
4946 if (!phba->sli4_hba.intr_enable)
4947 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
4949 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
4950 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
4957 rsrc_info = &mbox->u.mqe.un.rsrc_extent_info;
4958 if (bf_get(lpfc_mbox_hdr_status,
4959 &rsrc_info->header.cfg_shdr.response)) {
4960 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
4961 "2930 Failed to get resource extents "
4962 "Status 0x%x Add'l Status 0x%x\n",
4963 bf_get(lpfc_mbox_hdr_status,
4964 &rsrc_info->header.cfg_shdr.response),
4965 bf_get(lpfc_mbox_hdr_add_status,
4966 &rsrc_info->header.cfg_shdr.response));
4971 *extnt_count = bf_get(lpfc_mbx_get_rsrc_extent_info_cnt,
4973 *extnt_size = bf_get(lpfc_mbx_get_rsrc_extent_info_size,
4976 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4977 "3162 Retrieved extents type-%d from port: count:%d, "
4978 "size:%d\n", type, *extnt_count, *extnt_size);
4981 mempool_free(mbox, phba->mbox_mem_pool);
4986 * lpfc_sli4_chk_avail_extnt_rsrc - Check for available SLI4 resource extents.
4987 * @phba: Pointer to HBA context object.
4988 * @type: The extent type to check.
4990 * This function reads the current available extents from the port and checks
4991 * if the extent count or extent size has changed since the last access.
4992 * Callers use this routine post port reset to understand if there is a
4993 * extent reprovisioning requirement.
4996 * -Error: error indicates problem.
4997 * 1: Extent count or size has changed.
5001 lpfc_sli4_chk_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type)
5003 uint16_t curr_ext_cnt, rsrc_ext_cnt;
5004 uint16_t size_diff, rsrc_ext_size;
5006 struct lpfc_rsrc_blks *rsrc_entry;
5007 struct list_head *rsrc_blk_list = NULL;
5011 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5018 case LPFC_RSC_TYPE_FCOE_RPI:
5019 rsrc_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5021 case LPFC_RSC_TYPE_FCOE_VPI:
5022 rsrc_blk_list = &phba->lpfc_vpi_blk_list;
5024 case LPFC_RSC_TYPE_FCOE_XRI:
5025 rsrc_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5027 case LPFC_RSC_TYPE_FCOE_VFI:
5028 rsrc_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5034 list_for_each_entry(rsrc_entry, rsrc_blk_list, list) {
5036 if (rsrc_entry->rsrc_size != rsrc_ext_size)
5040 if (curr_ext_cnt != rsrc_ext_cnt || size_diff != 0)
5047 * lpfc_sli4_cfg_post_extnts -
5048 * @phba: Pointer to HBA context object.
5049 * @extnt_cnt - number of available extents.
5050 * @type - the extent type (rpi, xri, vfi, vpi).
5051 * @emb - buffer to hold either MBX_EMBED or MBX_NEMBED operation.
5052 * @mbox - pointer to the caller's allocated mailbox structure.
5054 * This function executes the extents allocation request. It also
5055 * takes care of the amount of memory needed to allocate or get the
5056 * allocated extents. It is the caller's responsibility to evaluate
5060 * -Error: Error value describes the condition found.
5064 lpfc_sli4_cfg_post_extnts(struct lpfc_hba *phba, uint16_t extnt_cnt,
5065 uint16_t type, bool *emb, LPFC_MBOXQ_t *mbox)
5070 uint32_t alloc_len, mbox_tmo;
5072 /* Calculate the total requested length of the dma memory */
5073 req_len = extnt_cnt * sizeof(uint16_t);
5076 * Calculate the size of an embedded mailbox. The uint32_t
5077 * accounts for extents-specific word.
5079 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
5083 * Presume the allocation and response will fit into an embedded
5084 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5086 *emb = LPFC_SLI4_MBX_EMBED;
5087 if (req_len > emb_len) {
5088 req_len = extnt_cnt * sizeof(uint16_t) +
5089 sizeof(union lpfc_sli4_cfg_shdr) +
5091 *emb = LPFC_SLI4_MBX_NEMBED;
5094 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5095 LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT,
5097 if (alloc_len < req_len) {
5098 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5099 "2982 Allocated DMA memory size (x%x) is "
5100 "less than the requested DMA memory "
5101 "size (x%x)\n", alloc_len, req_len);
5104 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, extnt_cnt, type, *emb);
5108 if (!phba->sli4_hba.intr_enable)
5109 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5111 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5112 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5121 * lpfc_sli4_alloc_extent - Allocate an SLI4 resource extent.
5122 * @phba: Pointer to HBA context object.
5123 * @type: The resource extent type to allocate.
5125 * This function allocates the number of elements for the specified
5129 lpfc_sli4_alloc_extent(struct lpfc_hba *phba, uint16_t type)
5132 uint16_t rsrc_id_cnt, rsrc_cnt, rsrc_size;
5133 uint16_t rsrc_id, rsrc_start, j, k;
5136 unsigned long longs;
5137 unsigned long *bmask;
5138 struct lpfc_rsrc_blks *rsrc_blks;
5141 struct lpfc_id_range *id_array = NULL;
5142 void *virtaddr = NULL;
5143 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5144 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5145 struct list_head *ext_blk_list;
5147 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5153 if ((rsrc_cnt == 0) || (rsrc_size == 0)) {
5154 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5155 "3009 No available Resource Extents "
5156 "for resource type 0x%x: Count: 0x%x, "
5157 "Size 0x%x\n", type, rsrc_cnt,
5162 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_INIT | LOG_SLI,
5163 "2903 Post resource extents type-0x%x: "
5164 "count:%d, size %d\n", type, rsrc_cnt, rsrc_size);
5166 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5170 rc = lpfc_sli4_cfg_post_extnts(phba, rsrc_cnt, type, &emb, mbox);
5177 * Figure out where the response is located. Then get local pointers
5178 * to the response data. The port does not guarantee to respond to
5179 * all extents counts request so update the local variable with the
5180 * allocated count from the port.
5182 if (emb == LPFC_SLI4_MBX_EMBED) {
5183 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
5184 id_array = &rsrc_ext->u.rsp.id[0];
5185 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
5187 virtaddr = mbox->sge_array->addr[0];
5188 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
5189 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
5190 id_array = &n_rsrc->id;
5193 longs = ((rsrc_cnt * rsrc_size) + BITS_PER_LONG - 1) / BITS_PER_LONG;
5194 rsrc_id_cnt = rsrc_cnt * rsrc_size;
5197 * Based on the resource size and count, correct the base and max
5200 length = sizeof(struct lpfc_rsrc_blks);
5202 case LPFC_RSC_TYPE_FCOE_RPI:
5203 phba->sli4_hba.rpi_bmask = kzalloc(longs *
5204 sizeof(unsigned long),
5206 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5210 phba->sli4_hba.rpi_ids = kzalloc(rsrc_id_cnt *
5213 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5214 kfree(phba->sli4_hba.rpi_bmask);
5220 * The next_rpi was initialized with the maximum available
5221 * count but the port may allocate a smaller number. Catch
5222 * that case and update the next_rpi.
5224 phba->sli4_hba.next_rpi = rsrc_id_cnt;
5226 /* Initialize local ptrs for common extent processing later. */
5227 bmask = phba->sli4_hba.rpi_bmask;
5228 ids = phba->sli4_hba.rpi_ids;
5229 ext_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5231 case LPFC_RSC_TYPE_FCOE_VPI:
5232 phba->vpi_bmask = kzalloc(longs *
5233 sizeof(unsigned long),
5235 if (unlikely(!phba->vpi_bmask)) {
5239 phba->vpi_ids = kzalloc(rsrc_id_cnt *
5242 if (unlikely(!phba->vpi_ids)) {
5243 kfree(phba->vpi_bmask);
5248 /* Initialize local ptrs for common extent processing later. */
5249 bmask = phba->vpi_bmask;
5250 ids = phba->vpi_ids;
5251 ext_blk_list = &phba->lpfc_vpi_blk_list;
5253 case LPFC_RSC_TYPE_FCOE_XRI:
5254 phba->sli4_hba.xri_bmask = kzalloc(longs *
5255 sizeof(unsigned long),
5257 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5261 phba->sli4_hba.max_cfg_param.xri_used = 0;
5262 phba->sli4_hba.xri_ids = kzalloc(rsrc_id_cnt *
5265 if (unlikely(!phba->sli4_hba.xri_ids)) {
5266 kfree(phba->sli4_hba.xri_bmask);
5271 /* Initialize local ptrs for common extent processing later. */
5272 bmask = phba->sli4_hba.xri_bmask;
5273 ids = phba->sli4_hba.xri_ids;
5274 ext_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5276 case LPFC_RSC_TYPE_FCOE_VFI:
5277 phba->sli4_hba.vfi_bmask = kzalloc(longs *
5278 sizeof(unsigned long),
5280 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5284 phba->sli4_hba.vfi_ids = kzalloc(rsrc_id_cnt *
5287 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5288 kfree(phba->sli4_hba.vfi_bmask);
5293 /* Initialize local ptrs for common extent processing later. */
5294 bmask = phba->sli4_hba.vfi_bmask;
5295 ids = phba->sli4_hba.vfi_ids;
5296 ext_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5299 /* Unsupported Opcode. Fail call. */
5303 ext_blk_list = NULL;
5308 * Complete initializing the extent configuration with the
5309 * allocated ids assigned to this function. The bitmask serves
5310 * as an index into the array and manages the available ids. The
5311 * array just stores the ids communicated to the port via the wqes.
5313 for (i = 0, j = 0, k = 0; i < rsrc_cnt; i++) {
5315 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_0,
5318 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_1,
5321 rsrc_blks = kzalloc(length, GFP_KERNEL);
5322 if (unlikely(!rsrc_blks)) {
5328 rsrc_blks->rsrc_start = rsrc_id;
5329 rsrc_blks->rsrc_size = rsrc_size;
5330 list_add_tail(&rsrc_blks->list, ext_blk_list);
5331 rsrc_start = rsrc_id;
5332 if ((type == LPFC_RSC_TYPE_FCOE_XRI) && (j == 0))
5333 phba->sli4_hba.scsi_xri_start = rsrc_start +
5334 lpfc_sli4_get_els_iocb_cnt(phba);
5336 while (rsrc_id < (rsrc_start + rsrc_size)) {
5341 /* Entire word processed. Get next word.*/
5346 lpfc_sli4_mbox_cmd_free(phba, mbox);
5351 * lpfc_sli4_dealloc_extent - Deallocate an SLI4 resource extent.
5352 * @phba: Pointer to HBA context object.
5353 * @type: the extent's type.
5355 * This function deallocates all extents of a particular resource type.
5356 * SLI4 does not allow for deallocating a particular extent range. It
5357 * is the caller's responsibility to release all kernel memory resources.
5360 lpfc_sli4_dealloc_extent(struct lpfc_hba *phba, uint16_t type)
5363 uint32_t length, mbox_tmo = 0;
5365 struct lpfc_mbx_dealloc_rsrc_extents *dealloc_rsrc;
5366 struct lpfc_rsrc_blks *rsrc_blk, *rsrc_blk_next;
5368 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5373 * This function sends an embedded mailbox because it only sends the
5374 * the resource type. All extents of this type are released by the
5377 length = (sizeof(struct lpfc_mbx_dealloc_rsrc_extents) -
5378 sizeof(struct lpfc_sli4_cfg_mhdr));
5379 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5380 LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT,
5381 length, LPFC_SLI4_MBX_EMBED);
5383 /* Send an extents count of 0 - the dealloc doesn't use it. */
5384 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5385 LPFC_SLI4_MBX_EMBED);
5390 if (!phba->sli4_hba.intr_enable)
5391 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5393 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5394 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5401 dealloc_rsrc = &mbox->u.mqe.un.dealloc_rsrc_extents;
5402 if (bf_get(lpfc_mbox_hdr_status,
5403 &dealloc_rsrc->header.cfg_shdr.response)) {
5404 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5405 "2919 Failed to release resource extents "
5406 "for type %d - Status 0x%x Add'l Status 0x%x. "
5407 "Resource memory not released.\n",
5409 bf_get(lpfc_mbox_hdr_status,
5410 &dealloc_rsrc->header.cfg_shdr.response),
5411 bf_get(lpfc_mbox_hdr_add_status,
5412 &dealloc_rsrc->header.cfg_shdr.response));
5417 /* Release kernel memory resources for the specific type. */
5419 case LPFC_RSC_TYPE_FCOE_VPI:
5420 kfree(phba->vpi_bmask);
5421 kfree(phba->vpi_ids);
5422 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5423 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5424 &phba->lpfc_vpi_blk_list, list) {
5425 list_del_init(&rsrc_blk->list);
5429 case LPFC_RSC_TYPE_FCOE_XRI:
5430 kfree(phba->sli4_hba.xri_bmask);
5431 kfree(phba->sli4_hba.xri_ids);
5432 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5433 &phba->sli4_hba.lpfc_xri_blk_list, list) {
5434 list_del_init(&rsrc_blk->list);
5438 case LPFC_RSC_TYPE_FCOE_VFI:
5439 kfree(phba->sli4_hba.vfi_bmask);
5440 kfree(phba->sli4_hba.vfi_ids);
5441 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5442 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5443 &phba->sli4_hba.lpfc_vfi_blk_list, list) {
5444 list_del_init(&rsrc_blk->list);
5448 case LPFC_RSC_TYPE_FCOE_RPI:
5449 /* RPI bitmask and physical id array are cleaned up earlier. */
5450 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5451 &phba->sli4_hba.lpfc_rpi_blk_list, list) {
5452 list_del_init(&rsrc_blk->list);
5460 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5463 mempool_free(mbox, phba->mbox_mem_pool);
5468 * lpfc_sli4_alloc_resource_identifiers - Allocate all SLI4 resource extents.
5469 * @phba: Pointer to HBA context object.
5471 * This function allocates all SLI4 resource identifiers.
5474 lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba *phba)
5476 int i, rc, error = 0;
5477 uint16_t count, base;
5478 unsigned long longs;
5480 if (!phba->sli4_hba.rpi_hdrs_in_use)
5481 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
5482 if (phba->sli4_hba.extents_in_use) {
5484 * The port supports resource extents. The XRI, VPI, VFI, RPI
5485 * resource extent count must be read and allocated before
5486 * provisioning the resource id arrays.
5488 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
5489 LPFC_IDX_RSRC_RDY) {
5491 * Extent-based resources are set - the driver could
5492 * be in a port reset. Figure out if any corrective
5493 * actions need to be taken.
5495 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5496 LPFC_RSC_TYPE_FCOE_VFI);
5499 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5500 LPFC_RSC_TYPE_FCOE_VPI);
5503 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5504 LPFC_RSC_TYPE_FCOE_XRI);
5507 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5508 LPFC_RSC_TYPE_FCOE_RPI);
5513 * It's possible that the number of resources
5514 * provided to this port instance changed between
5515 * resets. Detect this condition and reallocate
5516 * resources. Otherwise, there is no action.
5519 lpfc_printf_log(phba, KERN_INFO,
5520 LOG_MBOX | LOG_INIT,
5521 "2931 Detected extent resource "
5522 "change. Reallocating all "
5524 rc = lpfc_sli4_dealloc_extent(phba,
5525 LPFC_RSC_TYPE_FCOE_VFI);
5526 rc = lpfc_sli4_dealloc_extent(phba,
5527 LPFC_RSC_TYPE_FCOE_VPI);
5528 rc = lpfc_sli4_dealloc_extent(phba,
5529 LPFC_RSC_TYPE_FCOE_XRI);
5530 rc = lpfc_sli4_dealloc_extent(phba,
5531 LPFC_RSC_TYPE_FCOE_RPI);
5536 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
5540 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
5544 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
5548 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
5551 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
5556 * The port does not support resource extents. The XRI, VPI,
5557 * VFI, RPI resource ids were determined from READ_CONFIG.
5558 * Just allocate the bitmasks and provision the resource id
5559 * arrays. If a port reset is active, the resources don't
5560 * need any action - just exit.
5562 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
5563 LPFC_IDX_RSRC_RDY) {
5564 lpfc_sli4_dealloc_resource_identifiers(phba);
5565 lpfc_sli4_remove_rpis(phba);
5568 count = phba->sli4_hba.max_cfg_param.max_rpi;
5569 base = phba->sli4_hba.max_cfg_param.rpi_base;
5570 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5571 phba->sli4_hba.rpi_bmask = kzalloc(longs *
5572 sizeof(unsigned long),
5574 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5578 phba->sli4_hba.rpi_ids = kzalloc(count *
5581 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5583 goto free_rpi_bmask;
5586 for (i = 0; i < count; i++)
5587 phba->sli4_hba.rpi_ids[i] = base + i;
5590 count = phba->sli4_hba.max_cfg_param.max_vpi;
5591 base = phba->sli4_hba.max_cfg_param.vpi_base;
5592 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5593 phba->vpi_bmask = kzalloc(longs *
5594 sizeof(unsigned long),
5596 if (unlikely(!phba->vpi_bmask)) {
5600 phba->vpi_ids = kzalloc(count *
5603 if (unlikely(!phba->vpi_ids)) {
5605 goto free_vpi_bmask;
5608 for (i = 0; i < count; i++)
5609 phba->vpi_ids[i] = base + i;
5612 count = phba->sli4_hba.max_cfg_param.max_xri;
5613 base = phba->sli4_hba.max_cfg_param.xri_base;
5614 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5615 phba->sli4_hba.xri_bmask = kzalloc(longs *
5616 sizeof(unsigned long),
5618 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5622 phba->sli4_hba.max_cfg_param.xri_used = 0;
5623 phba->sli4_hba.xri_ids = kzalloc(count *
5626 if (unlikely(!phba->sli4_hba.xri_ids)) {
5628 goto free_xri_bmask;
5631 for (i = 0; i < count; i++)
5632 phba->sli4_hba.xri_ids[i] = base + i;
5635 count = phba->sli4_hba.max_cfg_param.max_vfi;
5636 base = phba->sli4_hba.max_cfg_param.vfi_base;
5637 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5638 phba->sli4_hba.vfi_bmask = kzalloc(longs *
5639 sizeof(unsigned long),
5641 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5645 phba->sli4_hba.vfi_ids = kzalloc(count *
5648 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5650 goto free_vfi_bmask;
5653 for (i = 0; i < count; i++)
5654 phba->sli4_hba.vfi_ids[i] = base + i;
5657 * Mark all resources ready. An HBA reset doesn't need
5658 * to reset the initialization.
5660 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
5666 kfree(phba->sli4_hba.vfi_bmask);
5668 kfree(phba->sli4_hba.xri_ids);
5670 kfree(phba->sli4_hba.xri_bmask);
5672 kfree(phba->vpi_ids);
5674 kfree(phba->vpi_bmask);
5676 kfree(phba->sli4_hba.rpi_ids);
5678 kfree(phba->sli4_hba.rpi_bmask);
5684 * lpfc_sli4_dealloc_resource_identifiers - Deallocate all SLI4 resource extents.
5685 * @phba: Pointer to HBA context object.
5687 * This function allocates the number of elements for the specified
5691 lpfc_sli4_dealloc_resource_identifiers(struct lpfc_hba *phba)
5693 if (phba->sli4_hba.extents_in_use) {
5694 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
5695 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
5696 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
5697 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
5699 kfree(phba->vpi_bmask);
5700 kfree(phba->vpi_ids);
5701 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5702 kfree(phba->sli4_hba.xri_bmask);
5703 kfree(phba->sli4_hba.xri_ids);
5704 kfree(phba->sli4_hba.vfi_bmask);
5705 kfree(phba->sli4_hba.vfi_ids);
5706 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5707 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5714 * lpfc_sli4_get_allocated_extnts - Get the port's allocated extents.
5715 * @phba: Pointer to HBA context object.
5716 * @type: The resource extent type.
5717 * @extnt_count: buffer to hold port extent count response
5718 * @extnt_size: buffer to hold port extent size response.
5720 * This function calls the port to read the host allocated extents
5721 * for a particular type.
5724 lpfc_sli4_get_allocated_extnts(struct lpfc_hba *phba, uint16_t type,
5725 uint16_t *extnt_cnt, uint16_t *extnt_size)
5729 uint16_t curr_blks = 0;
5730 uint32_t req_len, emb_len;
5731 uint32_t alloc_len, mbox_tmo;
5732 struct list_head *blk_list_head;
5733 struct lpfc_rsrc_blks *rsrc_blk;
5735 void *virtaddr = NULL;
5736 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5737 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5738 union lpfc_sli4_cfg_shdr *shdr;
5741 case LPFC_RSC_TYPE_FCOE_VPI:
5742 blk_list_head = &phba->lpfc_vpi_blk_list;
5744 case LPFC_RSC_TYPE_FCOE_XRI:
5745 blk_list_head = &phba->sli4_hba.lpfc_xri_blk_list;
5747 case LPFC_RSC_TYPE_FCOE_VFI:
5748 blk_list_head = &phba->sli4_hba.lpfc_vfi_blk_list;
5750 case LPFC_RSC_TYPE_FCOE_RPI:
5751 blk_list_head = &phba->sli4_hba.lpfc_rpi_blk_list;
5757 /* Count the number of extents currently allocatd for this type. */
5758 list_for_each_entry(rsrc_blk, blk_list_head, list) {
5759 if (curr_blks == 0) {
5761 * The GET_ALLOCATED mailbox does not return the size,
5762 * just the count. The size should be just the size
5763 * stored in the current allocated block and all sizes
5764 * for an extent type are the same so set the return
5767 *extnt_size = rsrc_blk->rsrc_size;
5772 /* Calculate the total requested length of the dma memory. */
5773 req_len = curr_blks * sizeof(uint16_t);
5776 * Calculate the size of an embedded mailbox. The uint32_t
5777 * accounts for extents-specific word.
5779 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
5783 * Presume the allocation and response will fit into an embedded
5784 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5786 emb = LPFC_SLI4_MBX_EMBED;
5788 if (req_len > emb_len) {
5789 req_len = curr_blks * sizeof(uint16_t) +
5790 sizeof(union lpfc_sli4_cfg_shdr) +
5792 emb = LPFC_SLI4_MBX_NEMBED;
5795 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5798 memset(mbox, 0, sizeof(LPFC_MBOXQ_t));
5800 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5801 LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT,
5803 if (alloc_len < req_len) {
5804 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5805 "2983 Allocated DMA memory size (x%x) is "
5806 "less than the requested DMA memory "
5807 "size (x%x)\n", alloc_len, req_len);
5811 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, curr_blks, type, emb);
5817 if (!phba->sli4_hba.intr_enable)
5818 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5820 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5821 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5830 * Figure out where the response is located. Then get local pointers
5831 * to the response data. The port does not guarantee to respond to
5832 * all extents counts request so update the local variable with the
5833 * allocated count from the port.
5835 if (emb == LPFC_SLI4_MBX_EMBED) {
5836 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
5837 shdr = &rsrc_ext->header.cfg_shdr;
5838 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
5840 virtaddr = mbox->sge_array->addr[0];
5841 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
5842 shdr = &n_rsrc->cfg_shdr;
5843 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
5846 if (bf_get(lpfc_mbox_hdr_status, &shdr->response)) {
5847 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5848 "2984 Failed to read allocated resources "
5849 "for type %d - Status 0x%x Add'l Status 0x%x.\n",
5851 bf_get(lpfc_mbox_hdr_status, &shdr->response),
5852 bf_get(lpfc_mbox_hdr_add_status, &shdr->response));
5857 lpfc_sli4_mbox_cmd_free(phba, mbox);
5862 * lpfc_sli4_repost_els_sgl_list - Repsot the els buffers sgl pages as block
5863 * @phba: pointer to lpfc hba data structure.
5865 * This routine walks the list of els buffers that have been allocated and
5866 * repost them to the port by using SGL block post. This is needed after a
5867 * pci_function_reset/warm_start or start. It attempts to construct blocks
5868 * of els buffer sgls which contains contiguous xris and uses the non-embedded
5869 * SGL block post mailbox commands to post them to the port. For single els
5870 * buffer sgl with non-contiguous xri, if any, it shall use embedded SGL post
5871 * mailbox command for posting.
5873 * Returns: 0 = success, non-zero failure.
5876 lpfc_sli4_repost_els_sgl_list(struct lpfc_hba *phba)
5878 struct lpfc_sglq *sglq_entry = NULL;
5879 struct lpfc_sglq *sglq_entry_next = NULL;
5880 struct lpfc_sglq *sglq_entry_first = NULL;
5881 int status, post_cnt = 0, num_posted = 0, block_cnt = 0;
5882 int last_xritag = NO_XRI;
5883 LIST_HEAD(prep_sgl_list);
5884 LIST_HEAD(blck_sgl_list);
5885 LIST_HEAD(allc_sgl_list);
5886 LIST_HEAD(post_sgl_list);
5887 LIST_HEAD(free_sgl_list);
5889 spin_lock(&phba->hbalock);
5890 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &allc_sgl_list);
5891 spin_unlock(&phba->hbalock);
5893 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
5894 &allc_sgl_list, list) {
5895 list_del_init(&sglq_entry->list);
5897 if ((last_xritag != NO_XRI) &&
5898 (sglq_entry->sli4_xritag != last_xritag + 1)) {
5899 /* a hole in xri block, form a sgl posting block */
5900 list_splice_init(&prep_sgl_list, &blck_sgl_list);
5901 post_cnt = block_cnt - 1;
5902 /* prepare list for next posting block */
5903 list_add_tail(&sglq_entry->list, &prep_sgl_list);
5906 /* prepare list for next posting block */
5907 list_add_tail(&sglq_entry->list, &prep_sgl_list);
5908 /* enough sgls for non-embed sgl mbox command */
5909 if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
5910 list_splice_init(&prep_sgl_list,
5912 post_cnt = block_cnt;
5918 /* keep track of last sgl's xritag */
5919 last_xritag = sglq_entry->sli4_xritag;
5921 /* end of repost sgl list condition for els buffers */
5922 if (num_posted == phba->sli4_hba.els_xri_cnt) {
5923 if (post_cnt == 0) {
5924 list_splice_init(&prep_sgl_list,
5926 post_cnt = block_cnt;
5927 } else if (block_cnt == 1) {
5928 status = lpfc_sli4_post_sgl(phba,
5929 sglq_entry->phys, 0,
5930 sglq_entry->sli4_xritag);
5932 /* successful, put sgl to posted list */
5933 list_add_tail(&sglq_entry->list,
5936 /* Failure, put sgl to free list */
5937 lpfc_printf_log(phba, KERN_WARNING,
5939 "3159 Failed to post els "
5940 "sgl, xritag:x%x\n",
5941 sglq_entry->sli4_xritag);
5942 list_add_tail(&sglq_entry->list,
5944 spin_lock_irq(&phba->hbalock);
5945 phba->sli4_hba.els_xri_cnt--;
5946 spin_unlock_irq(&phba->hbalock);
5951 /* continue until a nembed page worth of sgls */
5955 /* post the els buffer list sgls as a block */
5956 status = lpfc_sli4_post_els_sgl_list(phba, &blck_sgl_list,
5960 /* success, put sgl list to posted sgl list */
5961 list_splice_init(&blck_sgl_list, &post_sgl_list);
5963 /* Failure, put sgl list to free sgl list */
5964 sglq_entry_first = list_first_entry(&blck_sgl_list,
5967 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5968 "3160 Failed to post els sgl-list, "
5970 sglq_entry_first->sli4_xritag,
5971 (sglq_entry_first->sli4_xritag +
5973 list_splice_init(&blck_sgl_list, &free_sgl_list);
5974 spin_lock_irq(&phba->hbalock);
5975 phba->sli4_hba.els_xri_cnt -= post_cnt;
5976 spin_unlock_irq(&phba->hbalock);
5979 /* don't reset xirtag due to hole in xri block */
5981 last_xritag = NO_XRI;
5983 /* reset els sgl post count for next round of posting */
5987 /* free the els sgls failed to post */
5988 lpfc_free_sgl_list(phba, &free_sgl_list);
5990 /* push els sgls posted to the availble list */
5991 if (!list_empty(&post_sgl_list)) {
5992 spin_lock(&phba->hbalock);
5993 list_splice_init(&post_sgl_list,
5994 &phba->sli4_hba.lpfc_sgl_list);
5995 spin_unlock(&phba->hbalock);
5997 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5998 "3161 Failure to post els sgl to port.\n");
6005 * lpfc_sli4_hba_setup - SLI4 device intialization PCI function
6006 * @phba: Pointer to HBA context object.
6008 * This function is the main SLI4 device intialization PCI function. This
6009 * function is called by the HBA intialization code, HBA reset code and
6010 * HBA error attention handler code. Caller is not required to hold any
6014 lpfc_sli4_hba_setup(struct lpfc_hba *phba)
6017 LPFC_MBOXQ_t *mboxq;
6018 struct lpfc_mqe *mqe;
6021 uint32_t ftr_rsp = 0;
6022 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
6023 struct lpfc_vport *vport = phba->pport;
6024 struct lpfc_dmabuf *mp;
6026 /* Perform a PCI function reset to start from clean */
6027 rc = lpfc_pci_function_reset(phba);
6031 /* Check the HBA Host Status Register for readyness */
6032 rc = lpfc_sli4_post_status_check(phba);
6036 spin_lock_irq(&phba->hbalock);
6037 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
6038 spin_unlock_irq(&phba->hbalock);
6042 * Allocate a single mailbox container for initializing the
6045 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6049 /* Issue READ_REV to collect vpd and FW information. */
6050 vpd_size = SLI4_PAGE_SIZE;
6051 vpd = kzalloc(vpd_size, GFP_KERNEL);
6057 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
6062 mqe = &mboxq->u.mqe;
6063 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
6064 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev))
6065 phba->hba_flag |= HBA_FCOE_MODE;
6067 phba->hba_flag &= ~HBA_FCOE_MODE;
6069 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
6071 phba->hba_flag |= HBA_FIP_SUPPORT;
6073 phba->hba_flag &= ~HBA_FIP_SUPPORT;
6075 phba->hba_flag &= ~HBA_FCP_IOQ_FLUSH;
6077 if (phba->sli_rev != LPFC_SLI_REV4) {
6078 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6079 "0376 READ_REV Error. SLI Level %d "
6080 "FCoE enabled %d\n",
6081 phba->sli_rev, phba->hba_flag & HBA_FCOE_MODE);
6088 * Continue initialization with default values even if driver failed
6089 * to read FCoE param config regions, only read parameters if the
6092 if (phba->hba_flag & HBA_FCOE_MODE &&
6093 lpfc_sli4_read_fcoe_params(phba))
6094 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_INIT,
6095 "2570 Failed to read FCoE parameters\n");
6098 * Retrieve sli4 device physical port name, failure of doing it
6099 * is considered as non-fatal.
6101 rc = lpfc_sli4_retrieve_pport_name(phba);
6103 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6104 "3080 Successful retrieving SLI4 device "
6105 "physical port name: %s.\n", phba->Port);
6108 * Evaluate the read rev and vpd data. Populate the driver
6109 * state with the results. If this routine fails, the failure
6110 * is not fatal as the driver will use generic values.
6112 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
6113 if (unlikely(!rc)) {
6114 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6115 "0377 Error %d parsing vpd. "
6116 "Using defaults.\n", rc);
6121 /* Save information as VPD data */
6122 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
6123 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
6124 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
6125 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
6127 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
6129 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
6131 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
6133 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
6134 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
6135 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
6136 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
6137 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
6138 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
6139 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6140 "(%d):0380 READ_REV Status x%x "
6141 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
6142 mboxq->vport ? mboxq->vport->vpi : 0,
6143 bf_get(lpfc_mqe_status, mqe),
6144 phba->vpd.rev.opFwName,
6145 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
6146 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
6149 * Discover the port's supported feature set and match it against the
6152 lpfc_request_features(phba, mboxq);
6153 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6160 * The port must support FCP initiator mode as this is the
6161 * only mode running in the host.
6163 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
6164 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6165 "0378 No support for fcpi mode.\n");
6168 if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh, &mqe->un.req_ftrs))
6169 phba->sli3_options |= LPFC_SLI4_PERFH_ENABLED;
6171 phba->sli3_options &= ~LPFC_SLI4_PERFH_ENABLED;
6173 * If the port cannot support the host's requested features
6174 * then turn off the global config parameters to disable the
6175 * feature in the driver. This is not a fatal error.
6177 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
6178 if (phba->cfg_enable_bg) {
6179 if (bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))
6180 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
6185 if (phba->max_vpi && phba->cfg_enable_npiv &&
6186 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6190 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6191 "0379 Feature Mismatch Data: x%08x %08x "
6192 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
6193 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
6194 phba->cfg_enable_npiv, phba->max_vpi);
6195 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
6196 phba->cfg_enable_bg = 0;
6197 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6198 phba->cfg_enable_npiv = 0;
6201 /* These SLI3 features are assumed in SLI4 */
6202 spin_lock_irq(&phba->hbalock);
6203 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
6204 spin_unlock_irq(&phba->hbalock);
6207 * Allocate all resources (xri,rpi,vpi,vfi) now. Subsequent
6208 * calls depends on these resources to complete port setup.
6210 rc = lpfc_sli4_alloc_resource_identifiers(phba);
6212 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6213 "2920 Failed to alloc Resource IDs "
6218 /* Read the port's service parameters. */
6219 rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
6221 phba->link_state = LPFC_HBA_ERROR;
6226 mboxq->vport = vport;
6227 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6228 mp = (struct lpfc_dmabuf *) mboxq->context1;
6229 if (rc == MBX_SUCCESS) {
6230 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
6235 * This memory was allocated by the lpfc_read_sparam routine. Release
6236 * it to the mbuf pool.
6238 lpfc_mbuf_free(phba, mp->virt, mp->phys);
6240 mboxq->context1 = NULL;
6242 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6243 "0382 READ_SPARAM command failed "
6244 "status %d, mbxStatus x%x\n",
6245 rc, bf_get(lpfc_mqe_status, mqe));
6246 phba->link_state = LPFC_HBA_ERROR;
6251 lpfc_update_vport_wwn(vport);
6253 /* Update the fc_host data structures with new wwn. */
6254 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
6255 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
6257 /* update host els and scsi xri-sgl sizes and mappings */
6258 rc = lpfc_sli4_xri_sgl_update(phba);
6260 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6261 "1400 Failed to update xri-sgl size and "
6262 "mapping: %d\n", rc);
6266 /* register the els sgl pool to the port */
6267 rc = lpfc_sli4_repost_els_sgl_list(phba);
6269 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6270 "0582 Error %d during els sgl post "
6276 /* register the allocated scsi sgl pool to the port */
6277 rc = lpfc_sli4_repost_scsi_sgl_list(phba);
6279 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6280 "0383 Error %d during scsi sgl post "
6282 /* Some Scsi buffers were moved to the abort scsi list */
6283 /* A pci function reset will repost them */
6288 /* Post the rpi header region to the device. */
6289 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
6291 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6292 "0393 Error %d during rpi post operation\n",
6297 lpfc_sli4_node_prep(phba);
6299 /* Create all the SLI4 queues */
6300 rc = lpfc_sli4_queue_create(phba);
6302 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6303 "3089 Failed to allocate queues\n");
6305 goto out_stop_timers;
6307 /* Set up all the queues to the device */
6308 rc = lpfc_sli4_queue_setup(phba);
6310 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6311 "0381 Error %d during queue setup.\n ", rc);
6312 goto out_destroy_queue;
6315 /* Arm the CQs and then EQs on device */
6316 lpfc_sli4_arm_cqeq_intr(phba);
6318 /* Indicate device interrupt mode */
6319 phba->sli4_hba.intr_enable = 1;
6321 /* Allow asynchronous mailbox command to go through */
6322 spin_lock_irq(&phba->hbalock);
6323 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
6324 spin_unlock_irq(&phba->hbalock);
6326 /* Post receive buffers to the device */
6327 lpfc_sli4_rb_setup(phba);
6329 /* Reset HBA FCF states after HBA reset */
6330 phba->fcf.fcf_flag = 0;
6331 phba->fcf.current_rec.flag = 0;
6333 /* Start the ELS watchdog timer */
6334 mod_timer(&vport->els_tmofunc,
6335 jiffies + HZ * (phba->fc_ratov * 2));
6337 /* Start heart beat timer */
6338 mod_timer(&phba->hb_tmofunc,
6339 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
6340 phba->hb_outstanding = 0;
6341 phba->last_completion_time = jiffies;
6343 /* Start error attention (ERATT) polling timer */
6344 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
6346 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
6347 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
6348 rc = pci_enable_pcie_error_reporting(phba->pcidev);
6350 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6351 "2829 This device supports "
6352 "Advanced Error Reporting (AER)\n");
6353 spin_lock_irq(&phba->hbalock);
6354 phba->hba_flag |= HBA_AER_ENABLED;
6355 spin_unlock_irq(&phba->hbalock);
6357 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6358 "2830 This device does not support "
6359 "Advanced Error Reporting (AER)\n");
6360 phba->cfg_aer_support = 0;
6365 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
6367 * The FC Port needs to register FCFI (index 0)
6369 lpfc_reg_fcfi(phba, mboxq);
6370 mboxq->vport = phba->pport;
6371 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6372 if (rc != MBX_SUCCESS)
6373 goto out_unset_queue;
6375 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi,
6376 &mboxq->u.mqe.un.reg_fcfi);
6378 /* Check if the port is configured to be disabled */
6379 lpfc_sli_read_link_ste(phba);
6383 * The port is ready, set the host's link state to LINK_DOWN
6384 * in preparation for link interrupts.
6386 spin_lock_irq(&phba->hbalock);
6387 phba->link_state = LPFC_LINK_DOWN;
6388 spin_unlock_irq(&phba->hbalock);
6389 if (!(phba->hba_flag & HBA_FCOE_MODE) &&
6390 (phba->hba_flag & LINK_DISABLED)) {
6391 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
6392 "3103 Adapter Link is disabled.\n");
6393 lpfc_down_link(phba, mboxq);
6394 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6395 if (rc != MBX_SUCCESS) {
6396 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
6397 "3104 Adapter failed to issue "
6398 "DOWN_LINK mbox cmd, rc:x%x\n", rc);
6399 goto out_unset_queue;
6401 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
6402 /* don't perform init_link on SLI4 FC port loopback test */
6403 if (!(phba->link_flag & LS_LOOPBACK_MODE)) {
6404 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
6406 goto out_unset_queue;
6409 mempool_free(mboxq, phba->mbox_mem_pool);
6412 /* Unset all the queues set up in this routine when error out */
6413 lpfc_sli4_queue_unset(phba);
6415 lpfc_sli4_queue_destroy(phba);
6417 lpfc_stop_hba_timers(phba);
6419 mempool_free(mboxq, phba->mbox_mem_pool);
6424 * lpfc_mbox_timeout - Timeout call back function for mbox timer
6425 * @ptr: context object - pointer to hba structure.
6427 * This is the callback function for mailbox timer. The mailbox
6428 * timer is armed when a new mailbox command is issued and the timer
6429 * is deleted when the mailbox complete. The function is called by
6430 * the kernel timer code when a mailbox does not complete within
6431 * expected time. This function wakes up the worker thread to
6432 * process the mailbox timeout and returns. All the processing is
6433 * done by the worker thread function lpfc_mbox_timeout_handler.
6436 lpfc_mbox_timeout(unsigned long ptr)
6438 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
6439 unsigned long iflag;
6440 uint32_t tmo_posted;
6442 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
6443 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
6445 phba->pport->work_port_events |= WORKER_MBOX_TMO;
6446 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
6449 lpfc_worker_wake_up(phba);
6455 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
6456 * @phba: Pointer to HBA context object.
6458 * This function is called from worker thread when a mailbox command times out.
6459 * The caller is not required to hold any locks. This function will reset the
6460 * HBA and recover all the pending commands.
6463 lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
6465 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
6466 MAILBOX_t *mb = &pmbox->u.mb;
6467 struct lpfc_sli *psli = &phba->sli;
6468 struct lpfc_sli_ring *pring;
6470 /* Check the pmbox pointer first. There is a race condition
6471 * between the mbox timeout handler getting executed in the
6472 * worklist and the mailbox actually completing. When this
6473 * race condition occurs, the mbox_active will be NULL.
6475 spin_lock_irq(&phba->hbalock);
6476 if (pmbox == NULL) {
6477 lpfc_printf_log(phba, KERN_WARNING,
6479 "0353 Active Mailbox cleared - mailbox timeout "
6481 spin_unlock_irq(&phba->hbalock);
6485 /* Mbox cmd <mbxCommand> timeout */
6486 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6487 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
6489 phba->pport->port_state,
6491 phba->sli.mbox_active);
6492 spin_unlock_irq(&phba->hbalock);
6494 /* Setting state unknown so lpfc_sli_abort_iocb_ring
6495 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
6496 * it to fail all outstanding SCSI IO.
6498 spin_lock_irq(&phba->pport->work_port_lock);
6499 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
6500 spin_unlock_irq(&phba->pport->work_port_lock);
6501 spin_lock_irq(&phba->hbalock);
6502 phba->link_state = LPFC_LINK_UNKNOWN;
6503 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
6504 spin_unlock_irq(&phba->hbalock);
6506 pring = &psli->ring[psli->fcp_ring];
6507 lpfc_sli_abort_iocb_ring(phba, pring);
6509 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6510 "0345 Resetting board due to mailbox timeout\n");
6512 /* Reset the HBA device */
6513 lpfc_reset_hba(phba);
6517 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
6518 * @phba: Pointer to HBA context object.
6519 * @pmbox: Pointer to mailbox object.
6520 * @flag: Flag indicating how the mailbox need to be processed.
6522 * This function is called by discovery code and HBA management code
6523 * to submit a mailbox command to firmware with SLI-3 interface spec. This
6524 * function gets the hbalock to protect the data structures.
6525 * The mailbox command can be submitted in polling mode, in which case
6526 * this function will wait in a polling loop for the completion of the
6528 * If the mailbox is submitted in no_wait mode (not polling) the
6529 * function will submit the command and returns immediately without waiting
6530 * for the mailbox completion. The no_wait is supported only when HBA
6531 * is in SLI2/SLI3 mode - interrupts are enabled.
6532 * The SLI interface allows only one mailbox pending at a time. If the
6533 * mailbox is issued in polling mode and there is already a mailbox
6534 * pending, then the function will return an error. If the mailbox is issued
6535 * in NO_WAIT mode and there is a mailbox pending already, the function
6536 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
6537 * The sli layer owns the mailbox object until the completion of mailbox
6538 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
6539 * return codes the caller owns the mailbox command after the return of
6543 lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
6547 struct lpfc_sli *psli = &phba->sli;
6548 uint32_t status, evtctr;
6549 uint32_t ha_copy, hc_copy;
6551 unsigned long timeout;
6552 unsigned long drvr_flag = 0;
6553 uint32_t word0, ldata;
6554 void __iomem *to_slim;
6555 int processing_queue = 0;
6557 spin_lock_irqsave(&phba->hbalock, drvr_flag);
6559 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6560 /* processing mbox queue from intr_handler */
6561 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
6562 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6565 processing_queue = 1;
6566 pmbox = lpfc_mbox_get(phba);
6568 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6573 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
6574 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
6576 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6577 lpfc_printf_log(phba, KERN_ERR,
6578 LOG_MBOX | LOG_VPORT,
6579 "1806 Mbox x%x failed. No vport\n",
6580 pmbox->u.mb.mbxCommand);
6582 goto out_not_finished;
6586 /* If the PCI channel is in offline state, do not post mbox. */
6587 if (unlikely(pci_channel_offline(phba->pcidev))) {
6588 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6589 goto out_not_finished;
6592 /* If HBA has a deferred error attention, fail the iocb. */
6593 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
6594 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6595 goto out_not_finished;
6601 status = MBX_SUCCESS;
6603 if (phba->link_state == LPFC_HBA_ERROR) {
6604 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6606 /* Mbox command <mbxCommand> cannot issue */
6607 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6608 "(%d):0311 Mailbox command x%x cannot "
6609 "issue Data: x%x x%x\n",
6610 pmbox->vport ? pmbox->vport->vpi : 0,
6611 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
6612 goto out_not_finished;
6615 if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT) {
6616 if (lpfc_readl(phba->HCregaddr, &hc_copy) ||
6617 !(hc_copy & HC_MBINT_ENA)) {
6618 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6619 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6620 "(%d):2528 Mailbox command x%x cannot "
6621 "issue Data: x%x x%x\n",
6622 pmbox->vport ? pmbox->vport->vpi : 0,
6623 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
6624 goto out_not_finished;
6628 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
6629 /* Polling for a mbox command when another one is already active
6630 * is not allowed in SLI. Also, the driver must have established
6631 * SLI2 mode to queue and process multiple mbox commands.
6634 if (flag & MBX_POLL) {
6635 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6637 /* Mbox command <mbxCommand> cannot issue */
6638 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6639 "(%d):2529 Mailbox command x%x "
6640 "cannot issue Data: x%x x%x\n",
6641 pmbox->vport ? pmbox->vport->vpi : 0,
6642 pmbox->u.mb.mbxCommand,
6643 psli->sli_flag, flag);
6644 goto out_not_finished;
6647 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
6648 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6649 /* Mbox command <mbxCommand> cannot issue */
6650 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6651 "(%d):2530 Mailbox command x%x "
6652 "cannot issue Data: x%x x%x\n",
6653 pmbox->vport ? pmbox->vport->vpi : 0,
6654 pmbox->u.mb.mbxCommand,
6655 psli->sli_flag, flag);
6656 goto out_not_finished;
6659 /* Another mailbox command is still being processed, queue this
6660 * command to be processed later.
6662 lpfc_mbox_put(phba, pmbox);
6664 /* Mbox cmd issue - BUSY */
6665 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6666 "(%d):0308 Mbox cmd issue - BUSY Data: "
6667 "x%x x%x x%x x%x\n",
6668 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
6669 mb->mbxCommand, phba->pport->port_state,
6670 psli->sli_flag, flag);
6672 psli->slistat.mbox_busy++;
6673 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6676 lpfc_debugfs_disc_trc(pmbox->vport,
6677 LPFC_DISC_TRC_MBOX_VPORT,
6678 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
6679 (uint32_t)mb->mbxCommand,
6680 mb->un.varWords[0], mb->un.varWords[1]);
6683 lpfc_debugfs_disc_trc(phba->pport,
6685 "MBOX Bsy: cmd:x%x mb:x%x x%x",
6686 (uint32_t)mb->mbxCommand,
6687 mb->un.varWords[0], mb->un.varWords[1]);
6693 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
6695 /* If we are not polling, we MUST be in SLI2 mode */
6696 if (flag != MBX_POLL) {
6697 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
6698 (mb->mbxCommand != MBX_KILL_BOARD)) {
6699 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6700 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6701 /* Mbox command <mbxCommand> cannot issue */
6702 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6703 "(%d):2531 Mailbox command x%x "
6704 "cannot issue Data: x%x x%x\n",
6705 pmbox->vport ? pmbox->vport->vpi : 0,
6706 pmbox->u.mb.mbxCommand,
6707 psli->sli_flag, flag);
6708 goto out_not_finished;
6710 /* timeout active mbox command */
6711 mod_timer(&psli->mbox_tmo, (jiffies +
6712 (HZ * lpfc_mbox_tmo_val(phba, pmbox))));
6715 /* Mailbox cmd <cmd> issue */
6716 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6717 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
6719 pmbox->vport ? pmbox->vport->vpi : 0,
6720 mb->mbxCommand, phba->pport->port_state,
6721 psli->sli_flag, flag);
6723 if (mb->mbxCommand != MBX_HEARTBEAT) {
6725 lpfc_debugfs_disc_trc(pmbox->vport,
6726 LPFC_DISC_TRC_MBOX_VPORT,
6727 "MBOX Send vport: cmd:x%x mb:x%x x%x",
6728 (uint32_t)mb->mbxCommand,
6729 mb->un.varWords[0], mb->un.varWords[1]);
6732 lpfc_debugfs_disc_trc(phba->pport,
6734 "MBOX Send: cmd:x%x mb:x%x x%x",
6735 (uint32_t)mb->mbxCommand,
6736 mb->un.varWords[0], mb->un.varWords[1]);
6740 psli->slistat.mbox_cmd++;
6741 evtctr = psli->slistat.mbox_event;
6743 /* next set own bit for the adapter and copy over command word */
6744 mb->mbxOwner = OWN_CHIP;
6746 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
6747 /* Populate mbox extension offset word. */
6748 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) {
6749 *(((uint32_t *)mb) + pmbox->mbox_offset_word)
6750 = (uint8_t *)phba->mbox_ext
6751 - (uint8_t *)phba->mbox;
6754 /* Copy the mailbox extension data */
6755 if (pmbox->in_ext_byte_len && pmbox->context2) {
6756 lpfc_sli_pcimem_bcopy(pmbox->context2,
6757 (uint8_t *)phba->mbox_ext,
6758 pmbox->in_ext_byte_len);
6760 /* Copy command data to host SLIM area */
6761 lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE);
6763 /* Populate mbox extension offset word. */
6764 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len)
6765 *(((uint32_t *)mb) + pmbox->mbox_offset_word)
6766 = MAILBOX_HBA_EXT_OFFSET;
6768 /* Copy the mailbox extension data */
6769 if (pmbox->in_ext_byte_len && pmbox->context2) {
6770 lpfc_memcpy_to_slim(phba->MBslimaddr +
6771 MAILBOX_HBA_EXT_OFFSET,
6772 pmbox->context2, pmbox->in_ext_byte_len);
6775 if (mb->mbxCommand == MBX_CONFIG_PORT) {
6776 /* copy command data into host mbox for cmpl */
6777 lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE);
6780 /* First copy mbox command data to HBA SLIM, skip past first
6782 to_slim = phba->MBslimaddr + sizeof (uint32_t);
6783 lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0],
6784 MAILBOX_CMD_SIZE - sizeof (uint32_t));
6786 /* Next copy over first word, with mbxOwner set */
6787 ldata = *((uint32_t *)mb);
6788 to_slim = phba->MBslimaddr;
6789 writel(ldata, to_slim);
6790 readl(to_slim); /* flush */
6792 if (mb->mbxCommand == MBX_CONFIG_PORT) {
6793 /* switch over to host mailbox */
6794 psli->sli_flag |= LPFC_SLI_ACTIVE;
6802 /* Set up reference to mailbox command */
6803 psli->mbox_active = pmbox;
6804 /* Interrupt board to do it */
6805 writel(CA_MBATT, phba->CAregaddr);
6806 readl(phba->CAregaddr); /* flush */
6807 /* Don't wait for it to finish, just return */
6811 /* Set up null reference to mailbox command */
6812 psli->mbox_active = NULL;
6813 /* Interrupt board to do it */
6814 writel(CA_MBATT, phba->CAregaddr);
6815 readl(phba->CAregaddr); /* flush */
6817 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
6818 /* First read mbox status word */
6819 word0 = *((uint32_t *)phba->mbox);
6820 word0 = le32_to_cpu(word0);
6822 /* First read mbox status word */
6823 if (lpfc_readl(phba->MBslimaddr, &word0)) {
6824 spin_unlock_irqrestore(&phba->hbalock,
6826 goto out_not_finished;
6830 /* Read the HBA Host Attention Register */
6831 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
6832 spin_unlock_irqrestore(&phba->hbalock,
6834 goto out_not_finished;
6836 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
6839 /* Wait for command to complete */
6840 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
6841 (!(ha_copy & HA_MBATT) &&
6842 (phba->link_state > LPFC_WARM_START))) {
6843 if (time_after(jiffies, timeout)) {
6844 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6845 spin_unlock_irqrestore(&phba->hbalock,
6847 goto out_not_finished;
6850 /* Check if we took a mbox interrupt while we were
6852 if (((word0 & OWN_CHIP) != OWN_CHIP)
6853 && (evtctr != psli->slistat.mbox_event))
6857 spin_unlock_irqrestore(&phba->hbalock,
6860 spin_lock_irqsave(&phba->hbalock, drvr_flag);
6863 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
6864 /* First copy command data */
6865 word0 = *((uint32_t *)phba->mbox);
6866 word0 = le32_to_cpu(word0);
6867 if (mb->mbxCommand == MBX_CONFIG_PORT) {
6870 /* Check real SLIM for any errors */
6871 slimword0 = readl(phba->MBslimaddr);
6872 slimmb = (MAILBOX_t *) & slimword0;
6873 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
6874 && slimmb->mbxStatus) {
6881 /* First copy command data */
6882 word0 = readl(phba->MBslimaddr);
6884 /* Read the HBA Host Attention Register */
6885 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
6886 spin_unlock_irqrestore(&phba->hbalock,
6888 goto out_not_finished;
6892 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
6893 /* copy results back to user */
6894 lpfc_sli_pcimem_bcopy(phba->mbox, mb, MAILBOX_CMD_SIZE);
6895 /* Copy the mailbox extension data */
6896 if (pmbox->out_ext_byte_len && pmbox->context2) {
6897 lpfc_sli_pcimem_bcopy(phba->mbox_ext,
6899 pmbox->out_ext_byte_len);
6902 /* First copy command data */
6903 lpfc_memcpy_from_slim(mb, phba->MBslimaddr,
6905 /* Copy the mailbox extension data */
6906 if (pmbox->out_ext_byte_len && pmbox->context2) {
6907 lpfc_memcpy_from_slim(pmbox->context2,
6909 MAILBOX_HBA_EXT_OFFSET,
6910 pmbox->out_ext_byte_len);
6914 writel(HA_MBATT, phba->HAregaddr);
6915 readl(phba->HAregaddr); /* flush */
6917 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6918 status = mb->mbxStatus;
6921 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6925 if (processing_queue) {
6926 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
6927 lpfc_mbox_cmpl_put(phba, pmbox);
6929 return MBX_NOT_FINISHED;
6933 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
6934 * @phba: Pointer to HBA context object.
6936 * The function blocks the posting of SLI4 asynchronous mailbox commands from
6937 * the driver internal pending mailbox queue. It will then try to wait out the
6938 * possible outstanding mailbox command before return.
6941 * 0 - the outstanding mailbox command completed; otherwise, the wait for
6942 * the outstanding mailbox command timed out.
6945 lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
6947 struct lpfc_sli *psli = &phba->sli;
6949 unsigned long timeout = 0;
6951 /* Mark the asynchronous mailbox command posting as blocked */
6952 spin_lock_irq(&phba->hbalock);
6953 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
6954 /* Determine how long we might wait for the active mailbox
6955 * command to be gracefully completed by firmware.
6957 if (phba->sli.mbox_active)
6958 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
6959 phba->sli.mbox_active) *
6961 spin_unlock_irq(&phba->hbalock);
6963 /* Wait for the outstnading mailbox command to complete */
6964 while (phba->sli.mbox_active) {
6965 /* Check active mailbox complete status every 2ms */
6967 if (time_after(jiffies, timeout)) {
6968 /* Timeout, marked the outstanding cmd not complete */
6974 /* Can not cleanly block async mailbox command, fails it */
6976 spin_lock_irq(&phba->hbalock);
6977 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
6978 spin_unlock_irq(&phba->hbalock);
6984 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
6985 * @phba: Pointer to HBA context object.
6987 * The function unblocks and resume posting of SLI4 asynchronous mailbox
6988 * commands from the driver internal pending mailbox queue. It makes sure
6989 * that there is no outstanding mailbox command before resuming posting
6990 * asynchronous mailbox commands. If, for any reason, there is outstanding
6991 * mailbox command, it will try to wait it out before resuming asynchronous
6992 * mailbox command posting.
6995 lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
6997 struct lpfc_sli *psli = &phba->sli;
6999 spin_lock_irq(&phba->hbalock);
7000 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7001 /* Asynchronous mailbox posting is not blocked, do nothing */
7002 spin_unlock_irq(&phba->hbalock);
7006 /* Outstanding synchronous mailbox command is guaranteed to be done,
7007 * successful or timeout, after timing-out the outstanding mailbox
7008 * command shall always be removed, so just unblock posting async
7009 * mailbox command and resume
7011 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7012 spin_unlock_irq(&phba->hbalock);
7014 /* wake up worker thread to post asynchronlous mailbox command */
7015 lpfc_worker_wake_up(phba);
7019 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
7020 * @phba: Pointer to HBA context object.
7021 * @mboxq: Pointer to mailbox object.
7023 * The function posts a mailbox to the port. The mailbox is expected
7024 * to be comletely filled in and ready for the port to operate on it.
7025 * This routine executes a synchronous completion operation on the
7026 * mailbox by polling for its completion.
7028 * The caller must not be holding any locks when calling this routine.
7031 * MBX_SUCCESS - mailbox posted successfully
7032 * Any of the MBX error values.
7035 lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7037 int rc = MBX_SUCCESS;
7038 unsigned long iflag;
7040 uint32_t mcqe_status;
7042 unsigned long timeout;
7043 struct lpfc_sli *psli = &phba->sli;
7044 struct lpfc_mqe *mb = &mboxq->u.mqe;
7045 struct lpfc_bmbx_create *mbox_rgn;
7046 struct dma_address *dma_address;
7047 struct lpfc_register bmbx_reg;
7050 * Only one mailbox can be active to the bootstrap mailbox region
7051 * at a time and there is no queueing provided.
7053 spin_lock_irqsave(&phba->hbalock, iflag);
7054 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7055 spin_unlock_irqrestore(&phba->hbalock, iflag);
7056 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7057 "(%d):2532 Mailbox command x%x (x%x/x%x) "
7058 "cannot issue Data: x%x x%x\n",
7059 mboxq->vport ? mboxq->vport->vpi : 0,
7060 mboxq->u.mb.mbxCommand,
7061 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7062 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7063 psli->sli_flag, MBX_POLL);
7064 return MBXERR_ERROR;
7066 /* The server grabs the token and owns it until release */
7067 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7068 phba->sli.mbox_active = mboxq;
7069 spin_unlock_irqrestore(&phba->hbalock, iflag);
7072 * Initialize the bootstrap memory region to avoid stale data areas
7073 * in the mailbox post. Then copy the caller's mailbox contents to
7074 * the bmbx mailbox region.
7076 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
7077 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
7078 lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
7079 sizeof(struct lpfc_mqe));
7081 /* Post the high mailbox dma address to the port and wait for ready. */
7082 dma_address = &phba->sli4_hba.bmbx.dma_address;
7083 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
7085 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mboxq)
7088 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
7089 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
7093 if (time_after(jiffies, timeout)) {
7097 } while (!db_ready);
7099 /* Post the low mailbox dma address to the port. */
7100 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
7101 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mboxq)
7104 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
7105 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
7109 if (time_after(jiffies, timeout)) {
7113 } while (!db_ready);
7116 * Read the CQ to ensure the mailbox has completed.
7117 * If so, update the mailbox status so that the upper layers
7118 * can complete the request normally.
7120 lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
7121 sizeof(struct lpfc_mqe));
7122 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
7123 lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
7124 sizeof(struct lpfc_mcqe));
7125 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
7127 * When the CQE status indicates a failure and the mailbox status
7128 * indicates success then copy the CQE status into the mailbox status
7129 * (and prefix it with x4000).
7131 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
7132 if (bf_get(lpfc_mqe_status, mb) == MBX_SUCCESS)
7133 bf_set(lpfc_mqe_status, mb,
7134 (LPFC_MBX_ERROR_RANGE | mcqe_status));
7137 lpfc_sli4_swap_str(phba, mboxq);
7139 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7140 "(%d):0356 Mailbox cmd x%x (x%x/x%x) Status x%x "
7141 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
7142 " x%x x%x CQ: x%x x%x x%x x%x\n",
7143 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
7144 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7145 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7146 bf_get(lpfc_mqe_status, mb),
7147 mb->un.mb_words[0], mb->un.mb_words[1],
7148 mb->un.mb_words[2], mb->un.mb_words[3],
7149 mb->un.mb_words[4], mb->un.mb_words[5],
7150 mb->un.mb_words[6], mb->un.mb_words[7],
7151 mb->un.mb_words[8], mb->un.mb_words[9],
7152 mb->un.mb_words[10], mb->un.mb_words[11],
7153 mb->un.mb_words[12], mboxq->mcqe.word0,
7154 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
7155 mboxq->mcqe.trailer);
7157 /* We are holding the token, no needed for lock when release */
7158 spin_lock_irqsave(&phba->hbalock, iflag);
7159 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7160 phba->sli.mbox_active = NULL;
7161 spin_unlock_irqrestore(&phba->hbalock, iflag);
7166 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
7167 * @phba: Pointer to HBA context object.
7168 * @pmbox: Pointer to mailbox object.
7169 * @flag: Flag indicating how the mailbox need to be processed.
7171 * This function is called by discovery code and HBA management code to submit
7172 * a mailbox command to firmware with SLI-4 interface spec.
7174 * Return codes the caller owns the mailbox command after the return of the
7178 lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
7181 struct lpfc_sli *psli = &phba->sli;
7182 unsigned long iflags;
7185 /* dump from issue mailbox command if setup */
7186 lpfc_idiag_mbxacc_dump_issue_mbox(phba, &mboxq->u.mb);
7188 rc = lpfc_mbox_dev_check(phba);
7190 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7191 "(%d):2544 Mailbox command x%x (x%x/x%x) "
7192 "cannot issue Data: x%x x%x\n",
7193 mboxq->vport ? mboxq->vport->vpi : 0,
7194 mboxq->u.mb.mbxCommand,
7195 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7196 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7197 psli->sli_flag, flag);
7198 goto out_not_finished;
7201 /* Detect polling mode and jump to a handler */
7202 if (!phba->sli4_hba.intr_enable) {
7203 if (flag == MBX_POLL)
7204 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
7207 if (rc != MBX_SUCCESS)
7208 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7209 "(%d):2541 Mailbox command x%x "
7210 "(x%x/x%x) cannot issue Data: "
7212 mboxq->vport ? mboxq->vport->vpi : 0,
7213 mboxq->u.mb.mbxCommand,
7214 lpfc_sli_config_mbox_subsys_get(phba,
7216 lpfc_sli_config_mbox_opcode_get(phba,
7218 psli->sli_flag, flag);
7220 } else if (flag == MBX_POLL) {
7221 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7222 "(%d):2542 Try to issue mailbox command "
7223 "x%x (x%x/x%x) synchronously ahead of async"
7224 "mailbox command queue: x%x x%x\n",
7225 mboxq->vport ? mboxq->vport->vpi : 0,
7226 mboxq->u.mb.mbxCommand,
7227 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7228 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7229 psli->sli_flag, flag);
7230 /* Try to block the asynchronous mailbox posting */
7231 rc = lpfc_sli4_async_mbox_block(phba);
7233 /* Successfully blocked, now issue sync mbox cmd */
7234 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
7235 if (rc != MBX_SUCCESS)
7236 lpfc_printf_log(phba, KERN_ERR,
7238 "(%d):2597 Mailbox command "
7239 "x%x (x%x/x%x) cannot issue "
7242 mboxq->vport->vpi : 0,
7243 mboxq->u.mb.mbxCommand,
7244 lpfc_sli_config_mbox_subsys_get(phba,
7246 lpfc_sli_config_mbox_opcode_get(phba,
7248 psli->sli_flag, flag);
7249 /* Unblock the async mailbox posting afterward */
7250 lpfc_sli4_async_mbox_unblock(phba);
7255 /* Now, interrupt mode asynchrous mailbox command */
7256 rc = lpfc_mbox_cmd_check(phba, mboxq);
7258 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7259 "(%d):2543 Mailbox command x%x (x%x/x%x) "
7260 "cannot issue Data: x%x x%x\n",
7261 mboxq->vport ? mboxq->vport->vpi : 0,
7262 mboxq->u.mb.mbxCommand,
7263 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7264 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7265 psli->sli_flag, flag);
7266 goto out_not_finished;
7269 /* Put the mailbox command to the driver internal FIFO */
7270 psli->slistat.mbox_busy++;
7271 spin_lock_irqsave(&phba->hbalock, iflags);
7272 lpfc_mbox_put(phba, mboxq);
7273 spin_unlock_irqrestore(&phba->hbalock, iflags);
7274 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7275 "(%d):0354 Mbox cmd issue - Enqueue Data: "
7276 "x%x (x%x/x%x) x%x x%x x%x\n",
7277 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
7278 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
7279 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7280 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7281 phba->pport->port_state,
7282 psli->sli_flag, MBX_NOWAIT);
7283 /* Wake up worker thread to transport mailbox command from head */
7284 lpfc_worker_wake_up(phba);
7289 return MBX_NOT_FINISHED;
7293 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
7294 * @phba: Pointer to HBA context object.
7296 * This function is called by worker thread to send a mailbox command to
7297 * SLI4 HBA firmware.
7301 lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
7303 struct lpfc_sli *psli = &phba->sli;
7304 LPFC_MBOXQ_t *mboxq;
7305 int rc = MBX_SUCCESS;
7306 unsigned long iflags;
7307 struct lpfc_mqe *mqe;
7310 /* Check interrupt mode before post async mailbox command */
7311 if (unlikely(!phba->sli4_hba.intr_enable))
7312 return MBX_NOT_FINISHED;
7314 /* Check for mailbox command service token */
7315 spin_lock_irqsave(&phba->hbalock, iflags);
7316 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7317 spin_unlock_irqrestore(&phba->hbalock, iflags);
7318 return MBX_NOT_FINISHED;
7320 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7321 spin_unlock_irqrestore(&phba->hbalock, iflags);
7322 return MBX_NOT_FINISHED;
7324 if (unlikely(phba->sli.mbox_active)) {
7325 spin_unlock_irqrestore(&phba->hbalock, iflags);
7326 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7327 "0384 There is pending active mailbox cmd\n");
7328 return MBX_NOT_FINISHED;
7330 /* Take the mailbox command service token */
7331 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7333 /* Get the next mailbox command from head of queue */
7334 mboxq = lpfc_mbox_get(phba);
7336 /* If no more mailbox command waiting for post, we're done */
7338 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7339 spin_unlock_irqrestore(&phba->hbalock, iflags);
7342 phba->sli.mbox_active = mboxq;
7343 spin_unlock_irqrestore(&phba->hbalock, iflags);
7345 /* Check device readiness for posting mailbox command */
7346 rc = lpfc_mbox_dev_check(phba);
7348 /* Driver clean routine will clean up pending mailbox */
7349 goto out_not_finished;
7351 /* Prepare the mbox command to be posted */
7352 mqe = &mboxq->u.mqe;
7353 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
7355 /* Start timer for the mbox_tmo and log some mailbox post messages */
7356 mod_timer(&psli->mbox_tmo, (jiffies +
7357 (HZ * lpfc_mbox_tmo_val(phba, mboxq))));
7359 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7360 "(%d):0355 Mailbox cmd x%x (x%x/x%x) issue Data: "
7362 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
7363 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7364 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7365 phba->pport->port_state, psli->sli_flag);
7367 if (mbx_cmnd != MBX_HEARTBEAT) {
7369 lpfc_debugfs_disc_trc(mboxq->vport,
7370 LPFC_DISC_TRC_MBOX_VPORT,
7371 "MBOX Send vport: cmd:x%x mb:x%x x%x",
7372 mbx_cmnd, mqe->un.mb_words[0],
7373 mqe->un.mb_words[1]);
7375 lpfc_debugfs_disc_trc(phba->pport,
7377 "MBOX Send: cmd:x%x mb:x%x x%x",
7378 mbx_cmnd, mqe->un.mb_words[0],
7379 mqe->un.mb_words[1]);
7382 psli->slistat.mbox_cmd++;
7384 /* Post the mailbox command to the port */
7385 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
7386 if (rc != MBX_SUCCESS) {
7387 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7388 "(%d):2533 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, MBX_NOWAIT);
7395 goto out_not_finished;
7401 spin_lock_irqsave(&phba->hbalock, iflags);
7402 if (phba->sli.mbox_active) {
7403 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
7404 __lpfc_mbox_cmpl_put(phba, mboxq);
7405 /* Release the token */
7406 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7407 phba->sli.mbox_active = NULL;
7409 spin_unlock_irqrestore(&phba->hbalock, iflags);
7411 return MBX_NOT_FINISHED;
7415 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
7416 * @phba: Pointer to HBA context object.
7417 * @pmbox: Pointer to mailbox object.
7418 * @flag: Flag indicating how the mailbox need to be processed.
7420 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
7421 * the API jump table function pointer from the lpfc_hba struct.
7423 * Return codes the caller owns the mailbox command after the return of the
7427 lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
7429 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
7433 * lpfc_mbox_api_table_setup - Set up mbox api function jump table
7434 * @phba: The hba struct for which this call is being executed.
7435 * @dev_grp: The HBA PCI-Device group number.
7437 * This routine sets up the mbox interface API function jump table in @phba
7439 * Returns: 0 - success, -ENODEV - failure.
7442 lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
7446 case LPFC_PCI_DEV_LP:
7447 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
7448 phba->lpfc_sli_handle_slow_ring_event =
7449 lpfc_sli_handle_slow_ring_event_s3;
7450 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
7451 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
7452 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
7454 case LPFC_PCI_DEV_OC:
7455 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
7456 phba->lpfc_sli_handle_slow_ring_event =
7457 lpfc_sli_handle_slow_ring_event_s4;
7458 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
7459 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
7460 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
7463 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7464 "1420 Invalid HBA PCI-device group: 0x%x\n",
7473 * __lpfc_sli_ringtx_put - Add an iocb to the txq
7474 * @phba: Pointer to HBA context object.
7475 * @pring: Pointer to driver SLI ring object.
7476 * @piocb: Pointer to address of newly added command iocb.
7478 * This function is called with hbalock held to add a command
7479 * iocb to the txq when SLI layer cannot submit the command iocb
7483 __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7484 struct lpfc_iocbq *piocb)
7486 /* Insert the caller's iocb in the txq tail for later processing. */
7487 list_add_tail(&piocb->list, &pring->txq);
7492 * lpfc_sli_next_iocb - Get the next iocb in the txq
7493 * @phba: Pointer to HBA context object.
7494 * @pring: Pointer to driver SLI ring object.
7495 * @piocb: Pointer to address of newly added command iocb.
7497 * This function is called with hbalock held before a new
7498 * iocb is submitted to the firmware. This function checks
7499 * txq to flush the iocbs in txq to Firmware before
7500 * submitting new iocbs to the Firmware.
7501 * If there are iocbs in the txq which need to be submitted
7502 * to firmware, lpfc_sli_next_iocb returns the first element
7503 * of the txq after dequeuing it from txq.
7504 * If there is no iocb in the txq then the function will return
7505 * *piocb and *piocb is set to NULL. Caller needs to check
7506 * *piocb to find if there are more commands in the txq.
7508 static struct lpfc_iocbq *
7509 lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7510 struct lpfc_iocbq **piocb)
7512 struct lpfc_iocbq * nextiocb;
7514 nextiocb = lpfc_sli_ringtx_get(phba, pring);
7524 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
7525 * @phba: Pointer to HBA context object.
7526 * @ring_number: SLI ring number to issue iocb on.
7527 * @piocb: Pointer to command iocb.
7528 * @flag: Flag indicating if this command can be put into txq.
7530 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
7531 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
7532 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
7533 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
7534 * this function allows only iocbs for posting buffers. This function finds
7535 * next available slot in the command ring and posts the command to the
7536 * available slot and writes the port attention register to request HBA start
7537 * processing new iocb. If there is no slot available in the ring and
7538 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
7539 * the function returns IOCB_BUSY.
7541 * This function is called with hbalock held. The function will return success
7542 * after it successfully submit the iocb to firmware or after adding to the
7546 __lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
7547 struct lpfc_iocbq *piocb, uint32_t flag)
7549 struct lpfc_iocbq *nextiocb;
7551 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
7553 if (piocb->iocb_cmpl && (!piocb->vport) &&
7554 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
7555 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
7556 lpfc_printf_log(phba, KERN_ERR,
7557 LOG_SLI | LOG_VPORT,
7558 "1807 IOCB x%x failed. No vport\n",
7559 piocb->iocb.ulpCommand);
7565 /* If the PCI channel is in offline state, do not post iocbs. */
7566 if (unlikely(pci_channel_offline(phba->pcidev)))
7569 /* If HBA has a deferred error attention, fail the iocb. */
7570 if (unlikely(phba->hba_flag & DEFER_ERATT))
7574 * We should never get an IOCB if we are in a < LINK_DOWN state
7576 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
7580 * Check to see if we are blocking IOCB processing because of a
7581 * outstanding event.
7583 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
7586 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
7588 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
7589 * can be issued if the link is not up.
7591 switch (piocb->iocb.ulpCommand) {
7592 case CMD_GEN_REQUEST64_CR:
7593 case CMD_GEN_REQUEST64_CX:
7594 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
7595 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
7596 FC_RCTL_DD_UNSOL_CMD) ||
7597 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
7598 MENLO_TRANSPORT_TYPE))
7602 case CMD_QUE_RING_BUF_CN:
7603 case CMD_QUE_RING_BUF64_CN:
7605 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
7606 * completion, iocb_cmpl MUST be 0.
7608 if (piocb->iocb_cmpl)
7609 piocb->iocb_cmpl = NULL;
7611 case CMD_CREATE_XRI_CR:
7612 case CMD_CLOSE_XRI_CN:
7613 case CMD_CLOSE_XRI_CX:
7620 * For FCP commands, we must be in a state where we can process link
7623 } else if (unlikely(pring->ringno == phba->sli.fcp_ring &&
7624 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
7628 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
7629 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
7630 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
7633 lpfc_sli_update_ring(phba, pring);
7635 lpfc_sli_update_full_ring(phba, pring);
7638 return IOCB_SUCCESS;
7643 pring->stats.iocb_cmd_delay++;
7647 if (!(flag & SLI_IOCB_RET_IOCB)) {
7648 __lpfc_sli_ringtx_put(phba, pring, piocb);
7649 return IOCB_SUCCESS;
7656 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
7657 * @phba: Pointer to HBA context object.
7658 * @piocb: Pointer to command iocb.
7659 * @sglq: Pointer to the scatter gather queue object.
7661 * This routine converts the bpl or bde that is in the IOCB
7662 * to a sgl list for the sli4 hardware. The physical address
7663 * of the bpl/bde is converted back to a virtual address.
7664 * If the IOCB contains a BPL then the list of BDE's is
7665 * converted to sli4_sge's. If the IOCB contains a single
7666 * BDE then it is converted to a single sli_sge.
7667 * The IOCB is still in cpu endianess so the contents of
7668 * the bpl can be used without byte swapping.
7670 * Returns valid XRI = Success, NO_XRI = Failure.
7673 lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
7674 struct lpfc_sglq *sglq)
7676 uint16_t xritag = NO_XRI;
7677 struct ulp_bde64 *bpl = NULL;
7678 struct ulp_bde64 bde;
7679 struct sli4_sge *sgl = NULL;
7680 struct lpfc_dmabuf *dmabuf;
7684 uint32_t offset = 0; /* accumulated offset in the sg request list */
7685 int inbound = 0; /* number of sg reply entries inbound from firmware */
7687 if (!piocbq || !sglq)
7690 sgl = (struct sli4_sge *)sglq->sgl;
7691 icmd = &piocbq->iocb;
7692 if (icmd->ulpCommand == CMD_XMIT_BLS_RSP64_CX)
7693 return sglq->sli4_xritag;
7694 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
7695 numBdes = icmd->un.genreq64.bdl.bdeSize /
7696 sizeof(struct ulp_bde64);
7697 /* The addrHigh and addrLow fields within the IOCB
7698 * have not been byteswapped yet so there is no
7699 * need to swap them back.
7701 if (piocbq->context3)
7702 dmabuf = (struct lpfc_dmabuf *)piocbq->context3;
7706 bpl = (struct ulp_bde64 *)dmabuf->virt;
7710 for (i = 0; i < numBdes; i++) {
7711 /* Should already be byte swapped. */
7712 sgl->addr_hi = bpl->addrHigh;
7713 sgl->addr_lo = bpl->addrLow;
7715 sgl->word2 = le32_to_cpu(sgl->word2);
7716 if ((i+1) == numBdes)
7717 bf_set(lpfc_sli4_sge_last, sgl, 1);
7719 bf_set(lpfc_sli4_sge_last, sgl, 0);
7720 /* swap the size field back to the cpu so we
7721 * can assign it to the sgl.
7723 bde.tus.w = le32_to_cpu(bpl->tus.w);
7724 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
7725 /* The offsets in the sgl need to be accumulated
7726 * separately for the request and reply lists.
7727 * The request is always first, the reply follows.
7729 if (piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) {
7730 /* add up the reply sg entries */
7731 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
7733 /* first inbound? reset the offset */
7736 bf_set(lpfc_sli4_sge_offset, sgl, offset);
7737 bf_set(lpfc_sli4_sge_type, sgl,
7738 LPFC_SGE_TYPE_DATA);
7739 offset += bde.tus.f.bdeSize;
7741 sgl->word2 = cpu_to_le32(sgl->word2);
7745 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
7746 /* The addrHigh and addrLow fields of the BDE have not
7747 * been byteswapped yet so they need to be swapped
7748 * before putting them in the sgl.
7751 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
7753 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
7754 sgl->word2 = le32_to_cpu(sgl->word2);
7755 bf_set(lpfc_sli4_sge_last, sgl, 1);
7756 sgl->word2 = cpu_to_le32(sgl->word2);
7758 cpu_to_le32(icmd->un.genreq64.bdl.bdeSize);
7760 return sglq->sli4_xritag;
7764 * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution
7765 * @phba: Pointer to HBA context object.
7767 * This routine performs a roundrobin SCSI command to SLI4 FCP WQ index
7768 * distribution. This is called by __lpfc_sli_issue_iocb_s4() with the hbalock
7771 * Return: index into SLI4 fast-path FCP queue index.
7774 lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba)
7777 if (phba->fcp_qidx >= phba->cfg_fcp_wq_count)
7780 return phba->fcp_qidx;
7784 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
7785 * @phba: Pointer to HBA context object.
7786 * @piocb: Pointer to command iocb.
7787 * @wqe: Pointer to the work queue entry.
7789 * This routine converts the iocb command to its Work Queue Entry
7790 * equivalent. The wqe pointer should not have any fields set when
7791 * this routine is called because it will memcpy over them.
7792 * This routine does not set the CQ_ID or the WQEC bits in the
7795 * Returns: 0 = Success, IOCB_ERROR = Failure.
7798 lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
7799 union lpfc_wqe *wqe)
7801 uint32_t xmit_len = 0, total_len = 0;
7805 uint8_t command_type = ELS_COMMAND_NON_FIP;
7808 uint16_t abrt_iotag;
7809 struct lpfc_iocbq *abrtiocbq;
7810 struct ulp_bde64 *bpl = NULL;
7811 uint32_t els_id = LPFC_ELS_ID_DEFAULT;
7813 struct ulp_bde64 bde;
7814 struct lpfc_nodelist *ndlp;
7818 fip = phba->hba_flag & HBA_FIP_SUPPORT;
7819 /* The fcp commands will set command type */
7820 if (iocbq->iocb_flag & LPFC_IO_FCP)
7821 command_type = FCP_COMMAND;
7822 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
7823 command_type = ELS_COMMAND_FIP;
7825 command_type = ELS_COMMAND_NON_FIP;
7827 /* Some of the fields are in the right position already */
7828 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
7829 abort_tag = (uint32_t) iocbq->iotag;
7830 xritag = iocbq->sli4_xritag;
7831 wqe->generic.wqe_com.word7 = 0; /* The ct field has moved so reset */
7832 /* words0-2 bpl convert bde */
7833 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
7834 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
7835 sizeof(struct ulp_bde64);
7836 bpl = (struct ulp_bde64 *)
7837 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
7841 /* Should already be byte swapped. */
7842 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
7843 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
7844 /* swap the size field back to the cpu so we
7845 * can assign it to the sgl.
7847 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
7848 xmit_len = wqe->generic.bde.tus.f.bdeSize;
7850 for (i = 0; i < numBdes; i++) {
7851 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
7852 total_len += bde.tus.f.bdeSize;
7855 xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
7857 iocbq->iocb.ulpIoTag = iocbq->iotag;
7858 cmnd = iocbq->iocb.ulpCommand;
7860 switch (iocbq->iocb.ulpCommand) {
7861 case CMD_ELS_REQUEST64_CR:
7862 ndlp = (struct lpfc_nodelist *)iocbq->context1;
7863 if (!iocbq->iocb.ulpLe) {
7864 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7865 "2007 Only Limited Edition cmd Format"
7866 " supported 0x%x\n",
7867 iocbq->iocb.ulpCommand);
7871 wqe->els_req.payload_len = xmit_len;
7872 /* Els_reguest64 has a TMO */
7873 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
7874 iocbq->iocb.ulpTimeout);
7875 /* Need a VF for word 4 set the vf bit*/
7876 bf_set(els_req64_vf, &wqe->els_req, 0);
7877 /* And a VFID for word 12 */
7878 bf_set(els_req64_vfid, &wqe->els_req, 0);
7879 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
7880 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
7881 iocbq->iocb.ulpContext);
7882 bf_set(wqe_ct, &wqe->els_req.wqe_com, ct);
7883 bf_set(wqe_pu, &wqe->els_req.wqe_com, 0);
7884 /* CCP CCPE PV PRI in word10 were set in the memcpy */
7885 if (command_type == ELS_COMMAND_FIP)
7886 els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
7887 >> LPFC_FIP_ELS_ID_SHIFT);
7888 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
7889 iocbq->context2)->virt);
7890 if_type = bf_get(lpfc_sli_intf_if_type,
7891 &phba->sli4_hba.sli_intf);
7892 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
7893 if (pcmd && (*pcmd == ELS_CMD_FLOGI ||
7894 *pcmd == ELS_CMD_SCR ||
7895 *pcmd == ELS_CMD_FDISC ||
7896 *pcmd == ELS_CMD_LOGO ||
7897 *pcmd == ELS_CMD_PLOGI)) {
7898 bf_set(els_req64_sp, &wqe->els_req, 1);
7899 bf_set(els_req64_sid, &wqe->els_req,
7900 iocbq->vport->fc_myDID);
7901 bf_set(wqe_ct, &wqe->els_req.wqe_com, 1);
7902 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
7903 phba->vpi_ids[iocbq->vport->vpi]);
7904 } else if (pcmd && iocbq->context1) {
7905 bf_set(wqe_ct, &wqe->els_req.wqe_com, 0);
7906 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
7907 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
7910 bf_set(wqe_temp_rpi, &wqe->els_req.wqe_com,
7911 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
7912 bf_set(wqe_els_id, &wqe->els_req.wqe_com, els_id);
7913 bf_set(wqe_dbde, &wqe->els_req.wqe_com, 1);
7914 bf_set(wqe_iod, &wqe->els_req.wqe_com, LPFC_WQE_IOD_READ);
7915 bf_set(wqe_qosd, &wqe->els_req.wqe_com, 1);
7916 bf_set(wqe_lenloc, &wqe->els_req.wqe_com, LPFC_WQE_LENLOC_NONE);
7917 bf_set(wqe_ebde_cnt, &wqe->els_req.wqe_com, 0);
7919 case CMD_XMIT_SEQUENCE64_CX:
7920 bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com,
7921 iocbq->iocb.un.ulpWord[3]);
7922 bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com,
7923 iocbq->iocb.unsli3.rcvsli3.ox_id);
7924 /* The entire sequence is transmitted for this IOCB */
7925 xmit_len = total_len;
7926 cmnd = CMD_XMIT_SEQUENCE64_CR;
7927 if (phba->link_flag & LS_LOOPBACK_MODE)
7928 bf_set(wqe_xo, &wqe->xmit_sequence.wge_ctl, 1);
7929 case CMD_XMIT_SEQUENCE64_CR:
7930 /* word3 iocb=io_tag32 wqe=reserved */
7931 wqe->xmit_sequence.rsvd3 = 0;
7932 /* word4 relative_offset memcpy */
7933 /* word5 r_ctl/df_ctl memcpy */
7934 bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0);
7935 bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1);
7936 bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com,
7937 LPFC_WQE_IOD_WRITE);
7938 bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com,
7939 LPFC_WQE_LENLOC_WORD12);
7940 bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0);
7941 wqe->xmit_sequence.xmit_len = xmit_len;
7942 command_type = OTHER_COMMAND;
7944 case CMD_XMIT_BCAST64_CN:
7945 /* word3 iocb=iotag32 wqe=seq_payload_len */
7946 wqe->xmit_bcast64.seq_payload_len = xmit_len;
7947 /* word4 iocb=rsvd wqe=rsvd */
7948 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
7949 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
7950 bf_set(wqe_ct, &wqe->xmit_bcast64.wqe_com,
7951 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
7952 bf_set(wqe_dbde, &wqe->xmit_bcast64.wqe_com, 1);
7953 bf_set(wqe_iod, &wqe->xmit_bcast64.wqe_com, LPFC_WQE_IOD_WRITE);
7954 bf_set(wqe_lenloc, &wqe->xmit_bcast64.wqe_com,
7955 LPFC_WQE_LENLOC_WORD3);
7956 bf_set(wqe_ebde_cnt, &wqe->xmit_bcast64.wqe_com, 0);
7958 case CMD_FCP_IWRITE64_CR:
7959 command_type = FCP_COMMAND_DATA_OUT;
7960 /* word3 iocb=iotag wqe=payload_offset_len */
7961 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
7962 wqe->fcp_iwrite.payload_offset_len =
7963 xmit_len + sizeof(struct fcp_rsp);
7964 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
7965 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
7966 bf_set(wqe_erp, &wqe->fcp_iwrite.wqe_com,
7967 iocbq->iocb.ulpFCP2Rcvy);
7968 bf_set(wqe_lnk, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpXS);
7969 /* Always open the exchange */
7970 bf_set(wqe_xc, &wqe->fcp_iwrite.wqe_com, 0);
7971 bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE);
7972 bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com,
7973 LPFC_WQE_LENLOC_WORD4);
7974 bf_set(wqe_ebde_cnt, &wqe->fcp_iwrite.wqe_com, 0);
7975 bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpPU);
7976 if (iocbq->iocb_flag & LPFC_IO_DIF) {
7977 iocbq->iocb_flag &= ~LPFC_IO_DIF;
7978 bf_set(wqe_dif, &wqe->generic.wqe_com, 1);
7980 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 1);
7982 case CMD_FCP_IREAD64_CR:
7983 /* word3 iocb=iotag wqe=payload_offset_len */
7984 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
7985 wqe->fcp_iread.payload_offset_len =
7986 xmit_len + sizeof(struct fcp_rsp);
7987 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
7988 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
7989 bf_set(wqe_erp, &wqe->fcp_iread.wqe_com,
7990 iocbq->iocb.ulpFCP2Rcvy);
7991 bf_set(wqe_lnk, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpXS);
7992 /* Always open the exchange */
7993 bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
7994 bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ);
7995 bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com,
7996 LPFC_WQE_LENLOC_WORD4);
7997 bf_set(wqe_ebde_cnt, &wqe->fcp_iread.wqe_com, 0);
7998 bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpPU);
7999 if (iocbq->iocb_flag & LPFC_IO_DIF) {
8000 iocbq->iocb_flag &= ~LPFC_IO_DIF;
8001 bf_set(wqe_dif, &wqe->generic.wqe_com, 1);
8003 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 1);
8005 case CMD_FCP_ICMND64_CR:
8006 /* word3 iocb=IO_TAG wqe=reserved */
8007 wqe->fcp_icmd.rsrvd3 = 0;
8008 bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0);
8009 /* Always open the exchange */
8010 bf_set(wqe_xc, &wqe->fcp_icmd.wqe_com, 0);
8011 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 1);
8012 bf_set(wqe_iod, &wqe->fcp_icmd.wqe_com, LPFC_WQE_IOD_WRITE);
8013 bf_set(wqe_qosd, &wqe->fcp_icmd.wqe_com, 1);
8014 bf_set(wqe_lenloc, &wqe->fcp_icmd.wqe_com,
8015 LPFC_WQE_LENLOC_NONE);
8016 bf_set(wqe_ebde_cnt, &wqe->fcp_icmd.wqe_com, 0);
8018 case CMD_GEN_REQUEST64_CR:
8019 /* For this command calculate the xmit length of the
8023 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
8024 sizeof(struct ulp_bde64);
8025 for (i = 0; i < numBdes; i++) {
8026 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
8027 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
8029 xmit_len += bde.tus.f.bdeSize;
8031 /* word3 iocb=IO_TAG wqe=request_payload_len */
8032 wqe->gen_req.request_payload_len = xmit_len;
8033 /* word4 iocb=parameter wqe=relative_offset memcpy */
8034 /* word5 [rctl, type, df_ctl, la] copied in memcpy */
8035 /* word6 context tag copied in memcpy */
8036 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
8037 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
8038 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8039 "2015 Invalid CT %x command 0x%x\n",
8040 ct, iocbq->iocb.ulpCommand);
8043 bf_set(wqe_ct, &wqe->gen_req.wqe_com, 0);
8044 bf_set(wqe_tmo, &wqe->gen_req.wqe_com, iocbq->iocb.ulpTimeout);
8045 bf_set(wqe_pu, &wqe->gen_req.wqe_com, iocbq->iocb.ulpPU);
8046 bf_set(wqe_dbde, &wqe->gen_req.wqe_com, 1);
8047 bf_set(wqe_iod, &wqe->gen_req.wqe_com, LPFC_WQE_IOD_READ);
8048 bf_set(wqe_qosd, &wqe->gen_req.wqe_com, 1);
8049 bf_set(wqe_lenloc, &wqe->gen_req.wqe_com, LPFC_WQE_LENLOC_NONE);
8050 bf_set(wqe_ebde_cnt, &wqe->gen_req.wqe_com, 0);
8051 command_type = OTHER_COMMAND;
8053 case CMD_XMIT_ELS_RSP64_CX:
8054 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8055 /* words0-2 BDE memcpy */
8056 /* word3 iocb=iotag32 wqe=response_payload_len */
8057 wqe->xmit_els_rsp.response_payload_len = xmit_len;
8058 /* word4 iocb=did wge=rsvd. */
8059 wqe->xmit_els_rsp.rsvd4 = 0;
8060 /* word5 iocb=rsvd wge=did */
8061 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
8062 iocbq->iocb.un.elsreq64.remoteID);
8063 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com,
8064 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8065 bf_set(wqe_pu, &wqe->xmit_els_rsp.wqe_com, iocbq->iocb.ulpPU);
8066 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
8067 iocbq->iocb.unsli3.rcvsli3.ox_id);
8068 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
8069 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
8070 phba->vpi_ids[iocbq->vport->vpi]);
8071 bf_set(wqe_dbde, &wqe->xmit_els_rsp.wqe_com, 1);
8072 bf_set(wqe_iod, &wqe->xmit_els_rsp.wqe_com, LPFC_WQE_IOD_WRITE);
8073 bf_set(wqe_qosd, &wqe->xmit_els_rsp.wqe_com, 1);
8074 bf_set(wqe_lenloc, &wqe->xmit_els_rsp.wqe_com,
8075 LPFC_WQE_LENLOC_WORD3);
8076 bf_set(wqe_ebde_cnt, &wqe->xmit_els_rsp.wqe_com, 0);
8077 bf_set(wqe_rsp_temp_rpi, &wqe->xmit_els_rsp,
8078 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8079 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
8080 iocbq->context2)->virt);
8081 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
8082 bf_set(els_req64_sp, &wqe->els_req, 1);
8083 bf_set(els_req64_sid, &wqe->els_req,
8084 iocbq->vport->fc_myDID);
8085 bf_set(wqe_ct, &wqe->els_req.wqe_com, 1);
8086 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8087 phba->vpi_ids[phba->pport->vpi]);
8089 command_type = OTHER_COMMAND;
8091 case CMD_CLOSE_XRI_CN:
8092 case CMD_ABORT_XRI_CN:
8093 case CMD_ABORT_XRI_CX:
8094 /* words 0-2 memcpy should be 0 rserved */
8095 /* port will send abts */
8096 abrt_iotag = iocbq->iocb.un.acxri.abortContextTag;
8097 if (abrt_iotag != 0 && abrt_iotag <= phba->sli.last_iotag) {
8098 abrtiocbq = phba->sli.iocbq_lookup[abrt_iotag];
8099 fip = abrtiocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK;
8103 if ((iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN) || fip)
8105 * The link is down, or the command was ELS_FIP
8106 * so the fw does not need to send abts
8109 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
8111 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
8112 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
8113 /* word5 iocb=CONTEXT_TAG|IO_TAG wqe=reserved */
8114 wqe->abort_cmd.rsrvd5 = 0;
8115 bf_set(wqe_ct, &wqe->abort_cmd.wqe_com,
8116 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8117 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
8119 * The abort handler will send us CMD_ABORT_XRI_CN or
8120 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
8122 bf_set(wqe_cmnd, &wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
8123 bf_set(wqe_qosd, &wqe->abort_cmd.wqe_com, 1);
8124 bf_set(wqe_lenloc, &wqe->abort_cmd.wqe_com,
8125 LPFC_WQE_LENLOC_NONE);
8126 cmnd = CMD_ABORT_XRI_CX;
8127 command_type = OTHER_COMMAND;
8130 case CMD_XMIT_BLS_RSP64_CX:
8131 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8132 /* As BLS ABTS RSP WQE is very different from other WQEs,
8133 * we re-construct this WQE here based on information in
8134 * iocbq from scratch.
8136 memset(wqe, 0, sizeof(union lpfc_wqe));
8137 /* OX_ID is invariable to who sent ABTS to CT exchange */
8138 bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
8139 bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_rsp));
8140 if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_rsp) ==
8141 LPFC_ABTS_UNSOL_INT) {
8142 /* ABTS sent by initiator to CT exchange, the
8143 * RX_ID field will be filled with the newly
8144 * allocated responder XRI.
8146 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
8147 iocbq->sli4_xritag);
8149 /* ABTS sent by responder to CT exchange, the
8150 * RX_ID field will be filled with the responder
8153 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
8154 bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_rsp));
8156 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
8157 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
8160 bf_set(wqe_els_did, &wqe->xmit_bls_rsp.wqe_dest,
8162 bf_set(xmit_bls_rsp64_temprpi, &wqe->xmit_bls_rsp,
8163 iocbq->iocb.ulpContext);
8164 bf_set(wqe_ct, &wqe->xmit_bls_rsp.wqe_com, 1);
8165 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
8166 phba->vpi_ids[phba->pport->vpi]);
8167 bf_set(wqe_qosd, &wqe->xmit_bls_rsp.wqe_com, 1);
8168 bf_set(wqe_lenloc, &wqe->xmit_bls_rsp.wqe_com,
8169 LPFC_WQE_LENLOC_NONE);
8170 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
8171 command_type = OTHER_COMMAND;
8172 if (iocbq->iocb.un.xseq64.w5.hcsw.Rctl == FC_RCTL_BA_RJT) {
8173 bf_set(xmit_bls_rsp64_rjt_vspec, &wqe->xmit_bls_rsp,
8174 bf_get(lpfc_vndr_code, &iocbq->iocb.un.bls_rsp));
8175 bf_set(xmit_bls_rsp64_rjt_expc, &wqe->xmit_bls_rsp,
8176 bf_get(lpfc_rsn_expln, &iocbq->iocb.un.bls_rsp));
8177 bf_set(xmit_bls_rsp64_rjt_rsnc, &wqe->xmit_bls_rsp,
8178 bf_get(lpfc_rsn_code, &iocbq->iocb.un.bls_rsp));
8182 case CMD_XRI_ABORTED_CX:
8183 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
8184 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
8185 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
8186 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
8187 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
8189 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8190 "2014 Invalid command 0x%x\n",
8191 iocbq->iocb.ulpCommand);
8196 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
8197 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
8198 wqe->generic.wqe_com.abort_tag = abort_tag;
8199 bf_set(wqe_cmd_type, &wqe->generic.wqe_com, command_type);
8200 bf_set(wqe_cmnd, &wqe->generic.wqe_com, cmnd);
8201 bf_set(wqe_class, &wqe->generic.wqe_com, iocbq->iocb.ulpClass);
8202 bf_set(wqe_cqid, &wqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
8207 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
8208 * @phba: Pointer to HBA context object.
8209 * @ring_number: SLI ring number to issue iocb on.
8210 * @piocb: Pointer to command iocb.
8211 * @flag: Flag indicating if this command can be put into txq.
8213 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
8214 * an iocb command to an HBA with SLI-4 interface spec.
8216 * This function is called with hbalock held. The function will return success
8217 * after it successfully submit the iocb to firmware or after adding to the
8221 __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
8222 struct lpfc_iocbq *piocb, uint32_t flag)
8224 struct lpfc_sglq *sglq;
8226 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
8228 if (piocb->sli4_xritag == NO_XRI) {
8229 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
8230 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
8233 if (pring->txq_cnt) {
8234 if (!(flag & SLI_IOCB_RET_IOCB)) {
8235 __lpfc_sli_ringtx_put(phba,
8237 return IOCB_SUCCESS;
8242 sglq = __lpfc_sli_get_sglq(phba, piocb);
8244 if (!(flag & SLI_IOCB_RET_IOCB)) {
8245 __lpfc_sli_ringtx_put(phba,
8248 return IOCB_SUCCESS;
8254 } else if (piocb->iocb_flag & LPFC_IO_FCP) {
8255 /* These IO's already have an XRI and a mapped sgl. */
8259 * This is a continuation of a commandi,(CX) so this
8260 * sglq is on the active list
8262 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_xritag);
8268 piocb->sli4_lxritag = sglq->sli4_lxritag;
8269 piocb->sli4_xritag = sglq->sli4_xritag;
8270 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocb, sglq))
8274 if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe))
8277 if ((piocb->iocb_flag & LPFC_IO_FCP) ||
8278 (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
8280 * For FCP command IOCB, get a new WQ index to distribute
8281 * WQE across the WQsr. On the other hand, for abort IOCB,
8282 * it carries the same WQ index to the original command
8285 if (piocb->iocb_flag & LPFC_IO_FCP)
8286 piocb->fcp_wqidx = lpfc_sli4_scmd_to_wqidx_distr(phba);
8287 if (unlikely(!phba->sli4_hba.fcp_wq))
8289 if (lpfc_sli4_wq_put(phba->sli4_hba.fcp_wq[piocb->fcp_wqidx],
8293 if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
8296 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
8302 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
8304 * This routine wraps the actual lockless version for issusing IOCB function
8305 * pointer from the lpfc_hba struct.
8308 * IOCB_ERROR - Error
8309 * IOCB_SUCCESS - Success
8313 __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
8314 struct lpfc_iocbq *piocb, uint32_t flag)
8316 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
8320 * lpfc_sli_api_table_setup - Set up sli api function jump table
8321 * @phba: The hba struct for which this call is being executed.
8322 * @dev_grp: The HBA PCI-Device group number.
8324 * This routine sets up the SLI interface API function jump table in @phba
8326 * Returns: 0 - success, -ENODEV - failure.
8329 lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
8333 case LPFC_PCI_DEV_LP:
8334 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
8335 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
8337 case LPFC_PCI_DEV_OC:
8338 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
8339 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
8342 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8343 "1419 Invalid HBA PCI-device group: 0x%x\n",
8348 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
8353 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
8354 * @phba: Pointer to HBA context object.
8355 * @pring: Pointer to driver SLI ring object.
8356 * @piocb: Pointer to command iocb.
8357 * @flag: Flag indicating if this command can be put into txq.
8359 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
8360 * function. This function gets the hbalock and calls
8361 * __lpfc_sli_issue_iocb function and will return the error returned
8362 * by __lpfc_sli_issue_iocb function. This wrapper is used by
8363 * functions which do not hold hbalock.
8366 lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
8367 struct lpfc_iocbq *piocb, uint32_t flag)
8369 unsigned long iflags;
8372 spin_lock_irqsave(&phba->hbalock, iflags);
8373 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
8374 spin_unlock_irqrestore(&phba->hbalock, iflags);
8380 * lpfc_extra_ring_setup - Extra ring setup function
8381 * @phba: Pointer to HBA context object.
8383 * This function is called while driver attaches with the
8384 * HBA to setup the extra ring. The extra ring is used
8385 * only when driver needs to support target mode functionality
8386 * or IP over FC functionalities.
8388 * This function is called with no lock held.
8391 lpfc_extra_ring_setup( struct lpfc_hba *phba)
8393 struct lpfc_sli *psli;
8394 struct lpfc_sli_ring *pring;
8398 /* Adjust cmd/rsp ring iocb entries more evenly */
8400 /* Take some away from the FCP ring */
8401 pring = &psli->ring[psli->fcp_ring];
8402 pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8403 pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8404 pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8405 pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
8407 /* and give them to the extra ring */
8408 pring = &psli->ring[psli->extra_ring];
8410 pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8411 pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8412 pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8413 pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
8415 /* Setup default profile for this ring */
8416 pring->iotag_max = 4096;
8417 pring->num_mask = 1;
8418 pring->prt[0].profile = 0; /* Mask 0 */
8419 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
8420 pring->prt[0].type = phba->cfg_multi_ring_type;
8421 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
8425 /* lpfc_sli_abts_recover_port - Recover a port that failed an ABTS.
8426 * @vport: pointer to virtual port object.
8427 * @ndlp: nodelist pointer for the impacted rport.
8429 * The driver calls this routine in response to a XRI ABORT CQE
8430 * event from the port. In this event, the driver is required to
8431 * recover its login to the rport even though its login may be valid
8432 * from the driver's perspective. The failed ABTS notice from the
8433 * port indicates the rport is not responding.
8436 lpfc_sli_abts_recover_port(struct lpfc_vport *vport,
8437 struct lpfc_nodelist *ndlp)
8439 struct Scsi_Host *shost;
8440 struct lpfc_hba *phba;
8441 unsigned long flags = 0;
8443 shost = lpfc_shost_from_vport(vport);
8445 if (ndlp->nlp_state != NLP_STE_MAPPED_NODE) {
8446 lpfc_printf_log(phba, KERN_INFO,
8447 LOG_SLI, "3093 No rport recovery needed. "
8448 "rport in state 0x%x\n",
8452 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8453 "3094 Start rport recovery on shost id 0x%x "
8454 "fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x "
8456 shost->host_no, ndlp->nlp_DID,
8457 vport->vpi, ndlp->nlp_rpi, ndlp->nlp_state,
8460 * The rport is not responding. Don't attempt ADISC recovery.
8461 * Remove the FCP-2 flag to force a PLOGI.
8463 spin_lock_irqsave(shost->host_lock, flags);
8464 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
8465 spin_unlock_irqrestore(shost->host_lock, flags);
8466 lpfc_disc_state_machine(vport, ndlp, NULL,
8467 NLP_EVT_DEVICE_RECOVERY);
8468 lpfc_cancel_retry_delay_tmo(vport, ndlp);
8469 spin_lock_irqsave(shost->host_lock, flags);
8470 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
8471 spin_unlock_irqrestore(shost->host_lock, flags);
8472 lpfc_disc_start(vport);
8475 /* lpfc_sli_abts_err_handler - handle a failed ABTS request from an SLI3 port.
8476 * @phba: Pointer to HBA context object.
8477 * @iocbq: Pointer to iocb object.
8479 * The async_event handler calls this routine when it receives
8480 * an ASYNC_STATUS_CN event from the port. The port generates
8481 * this event when an Abort Sequence request to an rport fails
8482 * twice in succession. The abort could be originated by the
8483 * driver or by the port. The ABTS could have been for an ELS
8484 * or FCP IO. The port only generates this event when an ABTS
8485 * fails to complete after one retry.
8488 lpfc_sli_abts_err_handler(struct lpfc_hba *phba,
8489 struct lpfc_iocbq *iocbq)
8491 struct lpfc_nodelist *ndlp = NULL;
8492 uint16_t rpi = 0, vpi = 0;
8493 struct lpfc_vport *vport = NULL;
8495 /* The rpi in the ulpContext is vport-sensitive. */
8496 vpi = iocbq->iocb.un.asyncstat.sub_ctxt_tag;
8497 rpi = iocbq->iocb.ulpContext;
8499 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8500 "3092 Port generated ABTS async event "
8501 "on vpi %d rpi %d status 0x%x\n",
8502 vpi, rpi, iocbq->iocb.ulpStatus);
8504 vport = lpfc_find_vport_by_vpid(phba, vpi);
8507 ndlp = lpfc_findnode_rpi(vport, rpi);
8508 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
8511 if (iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT)
8512 lpfc_sli_abts_recover_port(vport, ndlp);
8516 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8517 "3095 Event Context not found, no "
8518 "action on vpi %d rpi %d status 0x%x, reason 0x%x\n",
8519 iocbq->iocb.ulpContext, iocbq->iocb.ulpStatus,
8523 /* lpfc_sli4_abts_err_handler - handle a failed ABTS request from an SLI4 port.
8524 * @phba: pointer to HBA context object.
8525 * @ndlp: nodelist pointer for the impacted rport.
8526 * @axri: pointer to the wcqe containing the failed exchange.
8528 * The driver calls this routine when it receives an ABORT_XRI_FCP CQE from the
8529 * port. The port generates this event when an abort exchange request to an
8530 * rport fails twice in succession with no reply. The abort could be originated
8531 * by the driver or by the port. The ABTS could have been for an ELS or FCP IO.
8534 lpfc_sli4_abts_err_handler(struct lpfc_hba *phba,
8535 struct lpfc_nodelist *ndlp,
8536 struct sli4_wcqe_xri_aborted *axri)
8538 struct lpfc_vport *vport;
8539 uint32_t ext_status = 0;
8541 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
8542 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8543 "3115 Node Context not found, driver "
8544 "ignoring abts err event\n");
8548 vport = ndlp->vport;
8549 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8550 "3116 Port generated FCP XRI ABORT event on "
8551 "vpi %d rpi %d xri x%x status 0x%x parameter x%x\n",
8552 ndlp->vport->vpi, ndlp->nlp_rpi,
8553 bf_get(lpfc_wcqe_xa_xri, axri),
8554 bf_get(lpfc_wcqe_xa_status, axri),
8558 * Catch the ABTS protocol failure case. Older OCe FW releases returned
8559 * LOCAL_REJECT and 0 for a failed ABTS exchange and later OCe and
8560 * LPe FW releases returned LOCAL_REJECT and SEQUENCE_TIMEOUT.
8562 ext_status = axri->parameter & WCQE_PARAM_MASK;
8563 if ((bf_get(lpfc_wcqe_xa_status, axri) == IOSTAT_LOCAL_REJECT) &&
8564 ((ext_status == IOERR_SEQUENCE_TIMEOUT) || (ext_status == 0)))
8565 lpfc_sli_abts_recover_port(vport, ndlp);
8569 * lpfc_sli_async_event_handler - ASYNC iocb handler function
8570 * @phba: Pointer to HBA context object.
8571 * @pring: Pointer to driver SLI ring object.
8572 * @iocbq: Pointer to iocb object.
8574 * This function is called by the slow ring event handler
8575 * function when there is an ASYNC event iocb in the ring.
8576 * This function is called with no lock held.
8577 * Currently this function handles only temperature related
8578 * ASYNC events. The function decodes the temperature sensor
8579 * event message and posts events for the management applications.
8582 lpfc_sli_async_event_handler(struct lpfc_hba * phba,
8583 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
8587 struct temp_event temp_event_data;
8588 struct Scsi_Host *shost;
8591 icmd = &iocbq->iocb;
8592 evt_code = icmd->un.asyncstat.evt_code;
8595 case ASYNC_TEMP_WARN:
8596 case ASYNC_TEMP_SAFE:
8597 temp_event_data.data = (uint32_t) icmd->ulpContext;
8598 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
8599 if (evt_code == ASYNC_TEMP_WARN) {
8600 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
8601 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
8602 "0347 Adapter is very hot, please take "
8603 "corrective action. temperature : %d Celsius\n",
8604 (uint32_t) icmd->ulpContext);
8606 temp_event_data.event_code = LPFC_NORMAL_TEMP;
8607 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
8608 "0340 Adapter temperature is OK now. "
8609 "temperature : %d Celsius\n",
8610 (uint32_t) icmd->ulpContext);
8613 /* Send temperature change event to applications */
8614 shost = lpfc_shost_from_vport(phba->pport);
8615 fc_host_post_vendor_event(shost, fc_get_event_number(),
8616 sizeof(temp_event_data), (char *) &temp_event_data,
8619 case ASYNC_STATUS_CN:
8620 lpfc_sli_abts_err_handler(phba, iocbq);
8623 iocb_w = (uint32_t *) icmd;
8624 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8625 "0346 Ring %d handler: unexpected ASYNC_STATUS"
8627 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
8628 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
8629 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
8630 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
8631 pring->ringno, icmd->un.asyncstat.evt_code,
8632 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
8633 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
8634 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
8635 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
8643 * lpfc_sli_setup - SLI ring setup function
8644 * @phba: Pointer to HBA context object.
8646 * lpfc_sli_setup sets up rings of the SLI interface with
8647 * number of iocbs per ring and iotags. This function is
8648 * called while driver attach to the HBA and before the
8649 * interrupts are enabled. So there is no need for locking.
8651 * This function always returns 0.
8654 lpfc_sli_setup(struct lpfc_hba *phba)
8656 int i, totiocbsize = 0;
8657 struct lpfc_sli *psli = &phba->sli;
8658 struct lpfc_sli_ring *pring;
8660 psli->num_rings = MAX_CONFIGURED_RINGS;
8662 psli->fcp_ring = LPFC_FCP_RING;
8663 psli->next_ring = LPFC_FCP_NEXT_RING;
8664 psli->extra_ring = LPFC_EXTRA_RING;
8666 psli->iocbq_lookup = NULL;
8667 psli->iocbq_lookup_len = 0;
8668 psli->last_iotag = 0;
8670 for (i = 0; i < psli->num_rings; i++) {
8671 pring = &psli->ring[i];
8673 case LPFC_FCP_RING: /* ring 0 - FCP */
8674 /* numCiocb and numRiocb are used in config_port */
8675 pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
8676 pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
8677 pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8678 pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8679 pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8680 pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
8681 pring->sizeCiocb = (phba->sli_rev == 3) ?
8682 SLI3_IOCB_CMD_SIZE :
8684 pring->sizeRiocb = (phba->sli_rev == 3) ?
8685 SLI3_IOCB_RSP_SIZE :
8687 pring->iotag_ctr = 0;
8689 (phba->cfg_hba_queue_depth * 2);
8690 pring->fast_iotag = pring->iotag_max;
8691 pring->num_mask = 0;
8693 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
8694 /* numCiocb and numRiocb are used in config_port */
8695 pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
8696 pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
8697 pring->sizeCiocb = (phba->sli_rev == 3) ?
8698 SLI3_IOCB_CMD_SIZE :
8700 pring->sizeRiocb = (phba->sli_rev == 3) ?
8701 SLI3_IOCB_RSP_SIZE :
8703 pring->iotag_max = phba->cfg_hba_queue_depth;
8704 pring->num_mask = 0;
8706 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
8707 /* numCiocb and numRiocb are used in config_port */
8708 pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
8709 pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
8710 pring->sizeCiocb = (phba->sli_rev == 3) ?
8711 SLI3_IOCB_CMD_SIZE :
8713 pring->sizeRiocb = (phba->sli_rev == 3) ?
8714 SLI3_IOCB_RSP_SIZE :
8716 pring->fast_iotag = 0;
8717 pring->iotag_ctr = 0;
8718 pring->iotag_max = 4096;
8719 pring->lpfc_sli_rcv_async_status =
8720 lpfc_sli_async_event_handler;
8721 pring->num_mask = LPFC_MAX_RING_MASK;
8722 pring->prt[0].profile = 0; /* Mask 0 */
8723 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
8724 pring->prt[0].type = FC_TYPE_ELS;
8725 pring->prt[0].lpfc_sli_rcv_unsol_event =
8726 lpfc_els_unsol_event;
8727 pring->prt[1].profile = 0; /* Mask 1 */
8728 pring->prt[1].rctl = FC_RCTL_ELS_REP;
8729 pring->prt[1].type = FC_TYPE_ELS;
8730 pring->prt[1].lpfc_sli_rcv_unsol_event =
8731 lpfc_els_unsol_event;
8732 pring->prt[2].profile = 0; /* Mask 2 */
8733 /* NameServer Inquiry */
8734 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
8736 pring->prt[2].type = FC_TYPE_CT;
8737 pring->prt[2].lpfc_sli_rcv_unsol_event =
8738 lpfc_ct_unsol_event;
8739 pring->prt[3].profile = 0; /* Mask 3 */
8740 /* NameServer response */
8741 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
8743 pring->prt[3].type = FC_TYPE_CT;
8744 pring->prt[3].lpfc_sli_rcv_unsol_event =
8745 lpfc_ct_unsol_event;
8746 /* abort unsolicited sequence */
8747 pring->prt[4].profile = 0; /* Mask 4 */
8748 pring->prt[4].rctl = FC_RCTL_BA_ABTS;
8749 pring->prt[4].type = FC_TYPE_BLS;
8750 pring->prt[4].lpfc_sli_rcv_unsol_event =
8751 lpfc_sli4_ct_abort_unsol_event;
8754 totiocbsize += (pring->numCiocb * pring->sizeCiocb) +
8755 (pring->numRiocb * pring->sizeRiocb);
8757 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
8758 /* Too many cmd / rsp ring entries in SLI2 SLIM */
8759 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
8760 "SLI2 SLIM Data: x%x x%lx\n",
8761 phba->brd_no, totiocbsize,
8762 (unsigned long) MAX_SLIM_IOCB_SIZE);
8764 if (phba->cfg_multi_ring_support == 2)
8765 lpfc_extra_ring_setup(phba);
8771 * lpfc_sli_queue_setup - Queue initialization function
8772 * @phba: Pointer to HBA context object.
8774 * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each
8775 * ring. This function also initializes ring indices of each ring.
8776 * This function is called during the initialization of the SLI
8777 * interface of an HBA.
8778 * This function is called with no lock held and always returns
8782 lpfc_sli_queue_setup(struct lpfc_hba *phba)
8784 struct lpfc_sli *psli;
8785 struct lpfc_sli_ring *pring;
8789 spin_lock_irq(&phba->hbalock);
8790 INIT_LIST_HEAD(&psli->mboxq);
8791 INIT_LIST_HEAD(&psli->mboxq_cmpl);
8792 /* Initialize list headers for txq and txcmplq as double linked lists */
8793 for (i = 0; i < psli->num_rings; i++) {
8794 pring = &psli->ring[i];
8796 pring->next_cmdidx = 0;
8797 pring->local_getidx = 0;
8799 INIT_LIST_HEAD(&pring->txq);
8800 INIT_LIST_HEAD(&pring->txcmplq);
8801 INIT_LIST_HEAD(&pring->iocb_continueq);
8802 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
8803 INIT_LIST_HEAD(&pring->postbufq);
8805 spin_unlock_irq(&phba->hbalock);
8810 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
8811 * @phba: Pointer to HBA context object.
8813 * This routine flushes the mailbox command subsystem. It will unconditionally
8814 * flush all the mailbox commands in the three possible stages in the mailbox
8815 * command sub-system: pending mailbox command queue; the outstanding mailbox
8816 * command; and completed mailbox command queue. It is caller's responsibility
8817 * to make sure that the driver is in the proper state to flush the mailbox
8818 * command sub-system. Namely, the posting of mailbox commands into the
8819 * pending mailbox command queue from the various clients must be stopped;
8820 * either the HBA is in a state that it will never works on the outstanding
8821 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
8822 * mailbox command has been completed.
8825 lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
8827 LIST_HEAD(completions);
8828 struct lpfc_sli *psli = &phba->sli;
8830 unsigned long iflag;
8832 /* Flush all the mailbox commands in the mbox system */
8833 spin_lock_irqsave(&phba->hbalock, iflag);
8834 /* The pending mailbox command queue */
8835 list_splice_init(&phba->sli.mboxq, &completions);
8836 /* The outstanding active mailbox command */
8837 if (psli->mbox_active) {
8838 list_add_tail(&psli->mbox_active->list, &completions);
8839 psli->mbox_active = NULL;
8840 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8842 /* The completed mailbox command queue */
8843 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
8844 spin_unlock_irqrestore(&phba->hbalock, iflag);
8846 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
8847 while (!list_empty(&completions)) {
8848 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
8849 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
8851 pmb->mbox_cmpl(phba, pmb);
8856 * lpfc_sli_host_down - Vport cleanup function
8857 * @vport: Pointer to virtual port object.
8859 * lpfc_sli_host_down is called to clean up the resources
8860 * associated with a vport before destroying virtual
8861 * port data structures.
8862 * This function does following operations:
8863 * - Free discovery resources associated with this virtual
8865 * - Free iocbs associated with this virtual port in
8867 * - Send abort for all iocb commands associated with this
8870 * This function is called with no lock held and always returns 1.
8873 lpfc_sli_host_down(struct lpfc_vport *vport)
8875 LIST_HEAD(completions);
8876 struct lpfc_hba *phba = vport->phba;
8877 struct lpfc_sli *psli = &phba->sli;
8878 struct lpfc_sli_ring *pring;
8879 struct lpfc_iocbq *iocb, *next_iocb;
8881 unsigned long flags = 0;
8882 uint16_t prev_pring_flag;
8884 lpfc_cleanup_discovery_resources(vport);
8886 spin_lock_irqsave(&phba->hbalock, flags);
8887 for (i = 0; i < psli->num_rings; i++) {
8888 pring = &psli->ring[i];
8889 prev_pring_flag = pring->flag;
8890 /* Only slow rings */
8891 if (pring->ringno == LPFC_ELS_RING) {
8892 pring->flag |= LPFC_DEFERRED_RING_EVENT;
8893 /* Set the lpfc data pending flag */
8894 set_bit(LPFC_DATA_READY, &phba->data_flags);
8897 * Error everything on the txq since these iocbs have not been
8898 * given to the FW yet.
8900 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
8901 if (iocb->vport != vport)
8903 list_move_tail(&iocb->list, &completions);
8907 /* Next issue ABTS for everything on the txcmplq */
8908 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq,
8910 if (iocb->vport != vport)
8912 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
8915 pring->flag = prev_pring_flag;
8918 spin_unlock_irqrestore(&phba->hbalock, flags);
8920 /* Cancel all the IOCBs from the completions list */
8921 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
8927 * lpfc_sli_hba_down - Resource cleanup function for the HBA
8928 * @phba: Pointer to HBA context object.
8930 * This function cleans up all iocb, buffers, mailbox commands
8931 * while shutting down the HBA. This function is called with no
8932 * lock held and always returns 1.
8933 * This function does the following to cleanup driver resources:
8934 * - Free discovery resources for each virtual port
8935 * - Cleanup any pending fabric iocbs
8936 * - Iterate through the iocb txq and free each entry
8938 * - Free up any buffer posted to the HBA
8939 * - Free mailbox commands in the mailbox queue.
8942 lpfc_sli_hba_down(struct lpfc_hba *phba)
8944 LIST_HEAD(completions);
8945 struct lpfc_sli *psli = &phba->sli;
8946 struct lpfc_sli_ring *pring;
8947 struct lpfc_dmabuf *buf_ptr;
8948 unsigned long flags = 0;
8951 /* Shutdown the mailbox command sub-system */
8952 lpfc_sli_mbox_sys_shutdown(phba);
8954 lpfc_hba_down_prep(phba);
8956 lpfc_fabric_abort_hba(phba);
8958 spin_lock_irqsave(&phba->hbalock, flags);
8959 for (i = 0; i < psli->num_rings; i++) {
8960 pring = &psli->ring[i];
8961 /* Only slow rings */
8962 if (pring->ringno == LPFC_ELS_RING) {
8963 pring->flag |= LPFC_DEFERRED_RING_EVENT;
8964 /* Set the lpfc data pending flag */
8965 set_bit(LPFC_DATA_READY, &phba->data_flags);
8969 * Error everything on the txq since these iocbs have not been
8970 * given to the FW yet.
8972 list_splice_init(&pring->txq, &completions);
8976 spin_unlock_irqrestore(&phba->hbalock, flags);
8978 /* Cancel all the IOCBs from the completions list */
8979 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
8982 spin_lock_irqsave(&phba->hbalock, flags);
8983 list_splice_init(&phba->elsbuf, &completions);
8984 phba->elsbuf_cnt = 0;
8985 phba->elsbuf_prev_cnt = 0;
8986 spin_unlock_irqrestore(&phba->hbalock, flags);
8988 while (!list_empty(&completions)) {
8989 list_remove_head(&completions, buf_ptr,
8990 struct lpfc_dmabuf, list);
8991 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
8995 /* Return any active mbox cmds */
8996 del_timer_sync(&psli->mbox_tmo);
8998 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
8999 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
9000 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
9006 * lpfc_sli_pcimem_bcopy - SLI memory copy function
9007 * @srcp: Source memory pointer.
9008 * @destp: Destination memory pointer.
9009 * @cnt: Number of words required to be copied.
9011 * This function is used for copying data between driver memory
9012 * and the SLI memory. This function also changes the endianness
9013 * of each word if native endianness is different from SLI
9014 * endianness. This function can be called with or without
9018 lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
9020 uint32_t *src = srcp;
9021 uint32_t *dest = destp;
9025 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
9027 ldata = le32_to_cpu(ldata);
9036 * lpfc_sli_bemem_bcopy - SLI memory copy function
9037 * @srcp: Source memory pointer.
9038 * @destp: Destination memory pointer.
9039 * @cnt: Number of words required to be copied.
9041 * This function is used for copying data between a data structure
9042 * with big endian representation to local endianness.
9043 * This function can be called with or without lock.
9046 lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
9048 uint32_t *src = srcp;
9049 uint32_t *dest = destp;
9053 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
9055 ldata = be32_to_cpu(ldata);
9063 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
9064 * @phba: Pointer to HBA context object.
9065 * @pring: Pointer to driver SLI ring object.
9066 * @mp: Pointer to driver buffer object.
9068 * This function is called with no lock held.
9069 * It always return zero after adding the buffer to the postbufq
9073 lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9074 struct lpfc_dmabuf *mp)
9076 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
9078 spin_lock_irq(&phba->hbalock);
9079 list_add_tail(&mp->list, &pring->postbufq);
9080 pring->postbufq_cnt++;
9081 spin_unlock_irq(&phba->hbalock);
9086 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
9087 * @phba: Pointer to HBA context object.
9089 * When HBQ is enabled, buffers are searched based on tags. This function
9090 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
9091 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
9092 * does not conflict with tags of buffer posted for unsolicited events.
9093 * The function returns the allocated tag. The function is called with
9097 lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
9099 spin_lock_irq(&phba->hbalock);
9100 phba->buffer_tag_count++;
9102 * Always set the QUE_BUFTAG_BIT to distiguish between
9103 * a tag assigned by HBQ.
9105 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
9106 spin_unlock_irq(&phba->hbalock);
9107 return phba->buffer_tag_count;
9111 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
9112 * @phba: Pointer to HBA context object.
9113 * @pring: Pointer to driver SLI ring object.
9116 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
9117 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
9118 * iocb is posted to the response ring with the tag of the buffer.
9119 * This function searches the pring->postbufq list using the tag
9120 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
9121 * iocb. If the buffer is found then lpfc_dmabuf object of the
9122 * buffer is returned to the caller else NULL is returned.
9123 * This function is called with no lock held.
9125 struct lpfc_dmabuf *
9126 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9129 struct lpfc_dmabuf *mp, *next_mp;
9130 struct list_head *slp = &pring->postbufq;
9132 /* Search postbufq, from the beginning, looking for a match on tag */
9133 spin_lock_irq(&phba->hbalock);
9134 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
9135 if (mp->buffer_tag == tag) {
9136 list_del_init(&mp->list);
9137 pring->postbufq_cnt--;
9138 spin_unlock_irq(&phba->hbalock);
9143 spin_unlock_irq(&phba->hbalock);
9144 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9145 "0402 Cannot find virtual addr for buffer tag on "
9146 "ring %d Data x%lx x%p x%p x%x\n",
9147 pring->ringno, (unsigned long) tag,
9148 slp->next, slp->prev, pring->postbufq_cnt);
9154 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
9155 * @phba: Pointer to HBA context object.
9156 * @pring: Pointer to driver SLI ring object.
9157 * @phys: DMA address of the buffer.
9159 * This function searches the buffer list using the dma_address
9160 * of unsolicited event to find the driver's lpfc_dmabuf object
9161 * corresponding to the dma_address. The function returns the
9162 * lpfc_dmabuf object if a buffer is found else it returns NULL.
9163 * This function is called by the ct and els unsolicited event
9164 * handlers to get the buffer associated with the unsolicited
9167 * This function is called with no lock held.
9169 struct lpfc_dmabuf *
9170 lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9173 struct lpfc_dmabuf *mp, *next_mp;
9174 struct list_head *slp = &pring->postbufq;
9176 /* Search postbufq, from the beginning, looking for a match on phys */
9177 spin_lock_irq(&phba->hbalock);
9178 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
9179 if (mp->phys == phys) {
9180 list_del_init(&mp->list);
9181 pring->postbufq_cnt--;
9182 spin_unlock_irq(&phba->hbalock);
9187 spin_unlock_irq(&phba->hbalock);
9188 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9189 "0410 Cannot find virtual addr for mapped buf on "
9190 "ring %d Data x%llx x%p x%p x%x\n",
9191 pring->ringno, (unsigned long long)phys,
9192 slp->next, slp->prev, pring->postbufq_cnt);
9197 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
9198 * @phba: Pointer to HBA context object.
9199 * @cmdiocb: Pointer to driver command iocb object.
9200 * @rspiocb: Pointer to driver response iocb object.
9202 * This function is the completion handler for the abort iocbs for
9203 * ELS commands. This function is called from the ELS ring event
9204 * handler with no lock held. This function frees memory resources
9205 * associated with the abort iocb.
9208 lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9209 struct lpfc_iocbq *rspiocb)
9211 IOCB_t *irsp = &rspiocb->iocb;
9212 uint16_t abort_iotag, abort_context;
9213 struct lpfc_iocbq *abort_iocb = NULL;
9215 if (irsp->ulpStatus) {
9218 * Assume that the port already completed and returned, or
9219 * will return the iocb. Just Log the message.
9221 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
9222 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
9224 spin_lock_irq(&phba->hbalock);
9225 if (phba->sli_rev < LPFC_SLI_REV4) {
9226 if (abort_iotag != 0 &&
9227 abort_iotag <= phba->sli.last_iotag)
9229 phba->sli.iocbq_lookup[abort_iotag];
9231 /* For sli4 the abort_tag is the XRI,
9232 * so the abort routine puts the iotag of the iocb
9233 * being aborted in the context field of the abort
9236 abort_iocb = phba->sli.iocbq_lookup[abort_context];
9238 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI,
9239 "0327 Cannot abort els iocb %p "
9240 "with tag %x context %x, abort status %x, "
9242 abort_iocb, abort_iotag, abort_context,
9243 irsp->ulpStatus, irsp->un.ulpWord[4]);
9245 spin_unlock_irq(&phba->hbalock);
9247 lpfc_sli_release_iocbq(phba, cmdiocb);
9252 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
9253 * @phba: Pointer to HBA context object.
9254 * @cmdiocb: Pointer to driver command iocb object.
9255 * @rspiocb: Pointer to driver response iocb object.
9257 * The function is called from SLI ring event handler with no
9258 * lock held. This function is the completion handler for ELS commands
9259 * which are aborted. The function frees memory resources used for
9260 * the aborted ELS commands.
9263 lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9264 struct lpfc_iocbq *rspiocb)
9266 IOCB_t *irsp = &rspiocb->iocb;
9268 /* ELS cmd tag <ulpIoTag> completes */
9269 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
9270 "0139 Ignoring ELS cmd tag x%x completion Data: "
9272 irsp->ulpIoTag, irsp->ulpStatus,
9273 irsp->un.ulpWord[4], irsp->ulpTimeout);
9274 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
9275 lpfc_ct_free_iocb(phba, cmdiocb);
9277 lpfc_els_free_iocb(phba, cmdiocb);
9282 * lpfc_sli_abort_iotag_issue - Issue abort for a command iocb
9283 * @phba: Pointer to HBA context object.
9284 * @pring: Pointer to driver SLI ring object.
9285 * @cmdiocb: Pointer to driver command iocb object.
9287 * This function issues an abort iocb for the provided command iocb down to
9288 * the port. Other than the case the outstanding command iocb is an abort
9289 * request, this function issues abort out unconditionally. This function is
9290 * called with hbalock held. The function returns 0 when it fails due to
9291 * memory allocation failure or when the command iocb is an abort request.
9294 lpfc_sli_abort_iotag_issue(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9295 struct lpfc_iocbq *cmdiocb)
9297 struct lpfc_vport *vport = cmdiocb->vport;
9298 struct lpfc_iocbq *abtsiocbp;
9299 IOCB_t *icmd = NULL;
9300 IOCB_t *iabt = NULL;
9304 * There are certain command types we don't want to abort. And we
9305 * don't want to abort commands that are already in the process of
9308 icmd = &cmdiocb->iocb;
9309 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
9310 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
9311 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
9314 /* issue ABTS for this IOCB based on iotag */
9315 abtsiocbp = __lpfc_sli_get_iocbq(phba);
9316 if (abtsiocbp == NULL)
9319 /* This signals the response to set the correct status
9320 * before calling the completion handler
9322 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
9324 iabt = &abtsiocbp->iocb;
9325 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
9326 iabt->un.acxri.abortContextTag = icmd->ulpContext;
9327 if (phba->sli_rev == LPFC_SLI_REV4) {
9328 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
9329 iabt->un.acxri.abortContextTag = cmdiocb->iotag;
9332 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
9334 iabt->ulpClass = icmd->ulpClass;
9336 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
9337 abtsiocbp->fcp_wqidx = cmdiocb->fcp_wqidx;
9338 if (cmdiocb->iocb_flag & LPFC_IO_FCP)
9339 abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
9341 if (phba->link_state >= LPFC_LINK_UP)
9342 iabt->ulpCommand = CMD_ABORT_XRI_CN;
9344 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
9346 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
9348 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
9349 "0339 Abort xri x%x, original iotag x%x, "
9350 "abort cmd iotag x%x\n",
9351 iabt->un.acxri.abortIoTag,
9352 iabt->un.acxri.abortContextTag,
9354 retval = __lpfc_sli_issue_iocb(phba, pring->ringno, abtsiocbp, 0);
9357 __lpfc_sli_release_iocbq(phba, abtsiocbp);
9360 * Caller to this routine should check for IOCB_ERROR
9361 * and handle it properly. This routine no longer removes
9362 * iocb off txcmplq and call compl in case of IOCB_ERROR.
9368 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
9369 * @phba: Pointer to HBA context object.
9370 * @pring: Pointer to driver SLI ring object.
9371 * @cmdiocb: Pointer to driver command iocb object.
9373 * This function issues an abort iocb for the provided command iocb. In case
9374 * of unloading, the abort iocb will not be issued to commands on the ELS
9375 * ring. Instead, the callback function shall be changed to those commands
9376 * so that nothing happens when them finishes. This function is called with
9377 * hbalock held. The function returns 0 when the command iocb is an abort
9381 lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9382 struct lpfc_iocbq *cmdiocb)
9384 struct lpfc_vport *vport = cmdiocb->vport;
9385 int retval = IOCB_ERROR;
9386 IOCB_t *icmd = NULL;
9389 * There are certain command types we don't want to abort. And we
9390 * don't want to abort commands that are already in the process of
9393 icmd = &cmdiocb->iocb;
9394 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
9395 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
9396 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
9400 * If we're unloading, don't abort iocb on the ELS ring, but change
9401 * the callback so that nothing happens when it finishes.
9403 if ((vport->load_flag & FC_UNLOADING) &&
9404 (pring->ringno == LPFC_ELS_RING)) {
9405 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
9406 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
9408 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
9409 goto abort_iotag_exit;
9412 /* Now, we try to issue the abort to the cmdiocb out */
9413 retval = lpfc_sli_abort_iotag_issue(phba, pring, cmdiocb);
9417 * Caller to this routine should check for IOCB_ERROR
9418 * and handle it properly. This routine no longer removes
9419 * iocb off txcmplq and call compl in case of IOCB_ERROR.
9425 * lpfc_sli_iocb_ring_abort - Unconditionally abort all iocbs on an iocb ring
9426 * @phba: Pointer to HBA context object.
9427 * @pring: Pointer to driver SLI ring object.
9429 * This function aborts all iocbs in the given ring and frees all the iocb
9430 * objects in txq. This function issues abort iocbs unconditionally for all
9431 * the iocb commands in txcmplq. The iocbs in the txcmplq is not guaranteed
9432 * to complete before the return of this function. The caller is not required
9433 * to hold any locks.
9436 lpfc_sli_iocb_ring_abort(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
9438 LIST_HEAD(completions);
9439 struct lpfc_iocbq *iocb, *next_iocb;
9441 if (pring->ringno == LPFC_ELS_RING)
9442 lpfc_fabric_abort_hba(phba);
9444 spin_lock_irq(&phba->hbalock);
9446 /* Take off all the iocbs on txq for cancelling */
9447 list_splice_init(&pring->txq, &completions);
9450 /* Next issue ABTS for everything on the txcmplq */
9451 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
9452 lpfc_sli_abort_iotag_issue(phba, pring, iocb);
9454 spin_unlock_irq(&phba->hbalock);
9456 /* Cancel all the IOCBs from the completions list */
9457 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9462 * lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
9463 * @phba: pointer to lpfc HBA data structure.
9465 * This routine will abort all pending and outstanding iocbs to an HBA.
9468 lpfc_sli_hba_iocb_abort(struct lpfc_hba *phba)
9470 struct lpfc_sli *psli = &phba->sli;
9471 struct lpfc_sli_ring *pring;
9474 for (i = 0; i < psli->num_rings; i++) {
9475 pring = &psli->ring[i];
9476 lpfc_sli_iocb_ring_abort(phba, pring);
9481 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
9482 * @iocbq: Pointer to driver iocb object.
9483 * @vport: Pointer to driver virtual port object.
9484 * @tgt_id: SCSI ID of the target.
9485 * @lun_id: LUN ID of the scsi device.
9486 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
9488 * This function acts as an iocb filter for functions which abort or count
9489 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
9490 * 0 if the filtering criteria is met for the given iocb and will return
9491 * 1 if the filtering criteria is not met.
9492 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
9493 * given iocb is for the SCSI device specified by vport, tgt_id and
9495 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
9496 * given iocb is for the SCSI target specified by vport and tgt_id
9498 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
9499 * given iocb is for the SCSI host associated with the given vport.
9500 * This function is called with no locks held.
9503 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
9504 uint16_t tgt_id, uint64_t lun_id,
9505 lpfc_ctx_cmd ctx_cmd)
9507 struct lpfc_scsi_buf *lpfc_cmd;
9510 if (!(iocbq->iocb_flag & LPFC_IO_FCP))
9513 if (iocbq->vport != vport)
9516 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
9518 if (lpfc_cmd->pCmd == NULL)
9523 if ((lpfc_cmd->rdata->pnode) &&
9524 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
9525 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
9529 if ((lpfc_cmd->rdata->pnode) &&
9530 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
9537 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
9546 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
9547 * @vport: Pointer to virtual port.
9548 * @tgt_id: SCSI ID of the target.
9549 * @lun_id: LUN ID of the scsi device.
9550 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
9552 * This function returns number of FCP commands pending for the vport.
9553 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
9554 * commands pending on the vport associated with SCSI device specified
9555 * by tgt_id and lun_id parameters.
9556 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
9557 * commands pending on the vport associated with SCSI target specified
9558 * by tgt_id parameter.
9559 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
9560 * commands pending on the vport.
9561 * This function returns the number of iocbs which satisfy the filter.
9562 * This function is called without any lock held.
9565 lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
9566 lpfc_ctx_cmd ctx_cmd)
9568 struct lpfc_hba *phba = vport->phba;
9569 struct lpfc_iocbq *iocbq;
9572 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
9573 iocbq = phba->sli.iocbq_lookup[i];
9575 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
9584 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
9585 * @phba: Pointer to HBA context object
9586 * @cmdiocb: Pointer to command iocb object.
9587 * @rspiocb: Pointer to response iocb object.
9589 * This function is called when an aborted FCP iocb completes. This
9590 * function is called by the ring event handler with no lock held.
9591 * This function frees the iocb.
9594 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9595 struct lpfc_iocbq *rspiocb)
9597 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9598 "3096 ABORT_XRI_CN completing on xri x%x "
9599 "original iotag x%x, abort cmd iotag x%x "
9600 "status 0x%x, reason 0x%x\n",
9601 cmdiocb->iocb.un.acxri.abortContextTag,
9602 cmdiocb->iocb.un.acxri.abortIoTag,
9603 cmdiocb->iotag, rspiocb->iocb.ulpStatus,
9604 rspiocb->iocb.un.ulpWord[4]);
9605 lpfc_sli_release_iocbq(phba, cmdiocb);
9610 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
9611 * @vport: Pointer to virtual port.
9612 * @pring: Pointer to driver SLI ring object.
9613 * @tgt_id: SCSI ID of the target.
9614 * @lun_id: LUN ID of the scsi device.
9615 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
9617 * This function sends an abort command for every SCSI command
9618 * associated with the given virtual port pending on the ring
9619 * filtered by lpfc_sli_validate_fcp_iocb function.
9620 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
9621 * FCP iocbs associated with lun specified by tgt_id and lun_id
9623 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
9624 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
9625 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
9626 * FCP iocbs associated with virtual port.
9627 * This function returns number of iocbs it failed to abort.
9628 * This function is called with no locks held.
9631 lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
9632 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
9634 struct lpfc_hba *phba = vport->phba;
9635 struct lpfc_iocbq *iocbq;
9636 struct lpfc_iocbq *abtsiocb;
9638 int errcnt = 0, ret_val = 0;
9641 for (i = 1; i <= phba->sli.last_iotag; i++) {
9642 iocbq = phba->sli.iocbq_lookup[i];
9644 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
9648 /* issue ABTS for this IOCB based on iotag */
9649 abtsiocb = lpfc_sli_get_iocbq(phba);
9650 if (abtsiocb == NULL) {
9656 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
9657 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
9658 if (phba->sli_rev == LPFC_SLI_REV4)
9659 abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
9661 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
9662 abtsiocb->iocb.ulpLe = 1;
9663 abtsiocb->iocb.ulpClass = cmd->ulpClass;
9664 abtsiocb->vport = phba->pport;
9666 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
9667 abtsiocb->fcp_wqidx = iocbq->fcp_wqidx;
9668 if (iocbq->iocb_flag & LPFC_IO_FCP)
9669 abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
9671 if (lpfc_is_link_up(phba))
9672 abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
9674 abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
9676 /* Setup callback routine and issue the command. */
9677 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
9678 ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
9680 if (ret_val == IOCB_ERROR) {
9681 lpfc_sli_release_iocbq(phba, abtsiocb);
9691 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
9692 * @phba: Pointer to HBA context object.
9693 * @cmdiocbq: Pointer to command iocb.
9694 * @rspiocbq: Pointer to response iocb.
9696 * This function is the completion handler for iocbs issued using
9697 * lpfc_sli_issue_iocb_wait function. This function is called by the
9698 * ring event handler function without any lock held. This function
9699 * can be called from both worker thread context and interrupt
9700 * context. This function also can be called from other thread which
9701 * cleans up the SLI layer objects.
9702 * This function copy the contents of the response iocb to the
9703 * response iocb memory object provided by the caller of
9704 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
9705 * sleeps for the iocb completion.
9708 lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
9709 struct lpfc_iocbq *cmdiocbq,
9710 struct lpfc_iocbq *rspiocbq)
9712 wait_queue_head_t *pdone_q;
9713 unsigned long iflags;
9714 struct lpfc_scsi_buf *lpfc_cmd;
9716 spin_lock_irqsave(&phba->hbalock, iflags);
9717 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
9718 if (cmdiocbq->context2 && rspiocbq)
9719 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
9720 &rspiocbq->iocb, sizeof(IOCB_t));
9722 /* Set the exchange busy flag for task management commands */
9723 if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) &&
9724 !(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) {
9725 lpfc_cmd = container_of(cmdiocbq, struct lpfc_scsi_buf,
9727 lpfc_cmd->exch_busy = rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY;
9730 pdone_q = cmdiocbq->context_un.wait_queue;
9733 spin_unlock_irqrestore(&phba->hbalock, iflags);
9738 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
9739 * @phba: Pointer to HBA context object..
9740 * @piocbq: Pointer to command iocb.
9741 * @flag: Flag to test.
9743 * This routine grabs the hbalock and then test the iocb_flag to
9744 * see if the passed in flag is set.
9747 * 0 if flag is not set.
9750 lpfc_chk_iocb_flg(struct lpfc_hba *phba,
9751 struct lpfc_iocbq *piocbq, uint32_t flag)
9753 unsigned long iflags;
9756 spin_lock_irqsave(&phba->hbalock, iflags);
9757 ret = piocbq->iocb_flag & flag;
9758 spin_unlock_irqrestore(&phba->hbalock, iflags);
9764 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
9765 * @phba: Pointer to HBA context object..
9766 * @pring: Pointer to sli ring.
9767 * @piocb: Pointer to command iocb.
9768 * @prspiocbq: Pointer to response iocb.
9769 * @timeout: Timeout in number of seconds.
9771 * This function issues the iocb to firmware and waits for the
9772 * iocb to complete. If the iocb command is not
9773 * completed within timeout seconds, it returns IOCB_TIMEDOUT.
9774 * Caller should not free the iocb resources if this function
9775 * returns IOCB_TIMEDOUT.
9776 * The function waits for the iocb completion using an
9777 * non-interruptible wait.
9778 * This function will sleep while waiting for iocb completion.
9779 * So, this function should not be called from any context which
9780 * does not allow sleeping. Due to the same reason, this function
9781 * cannot be called with interrupt disabled.
9782 * This function assumes that the iocb completions occur while
9783 * this function sleep. So, this function cannot be called from
9784 * the thread which process iocb completion for this ring.
9785 * This function clears the iocb_flag of the iocb object before
9786 * issuing the iocb and the iocb completion handler sets this
9787 * flag and wakes this thread when the iocb completes.
9788 * The contents of the response iocb will be copied to prspiocbq
9789 * by the completion handler when the command completes.
9790 * This function returns IOCB_SUCCESS when success.
9791 * This function is called with no lock held.
9794 lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
9795 uint32_t ring_number,
9796 struct lpfc_iocbq *piocb,
9797 struct lpfc_iocbq *prspiocbq,
9800 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
9801 long timeleft, timeout_req = 0;
9802 int retval = IOCB_SUCCESS;
9804 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
9806 * If the caller has provided a response iocbq buffer, then context2
9807 * is NULL or its an error.
9810 if (piocb->context2)
9812 piocb->context2 = prspiocbq;
9815 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
9816 piocb->context_un.wait_queue = &done_q;
9817 piocb->iocb_flag &= ~LPFC_IO_WAKE;
9819 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
9820 if (lpfc_readl(phba->HCregaddr, &creg_val))
9822 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
9823 writel(creg_val, phba->HCregaddr);
9824 readl(phba->HCregaddr); /* flush */
9827 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb,
9829 if (retval == IOCB_SUCCESS) {
9830 timeout_req = timeout * HZ;
9831 timeleft = wait_event_timeout(done_q,
9832 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
9835 if (piocb->iocb_flag & LPFC_IO_WAKE) {
9836 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9837 "0331 IOCB wake signaled\n");
9838 } else if (timeleft == 0) {
9839 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9840 "0338 IOCB wait timeout error - no "
9841 "wake response Data x%x\n", timeout);
9842 retval = IOCB_TIMEDOUT;
9844 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9845 "0330 IOCB wake NOT set, "
9847 timeout, (timeleft / jiffies));
9848 retval = IOCB_TIMEDOUT;
9850 } else if (retval == IOCB_BUSY) {
9851 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9852 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
9853 phba->iocb_cnt, pring->txq_cnt, pring->txcmplq_cnt);
9856 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9857 "0332 IOCB wait issue failed, Data x%x\n",
9859 retval = IOCB_ERROR;
9862 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
9863 if (lpfc_readl(phba->HCregaddr, &creg_val))
9865 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
9866 writel(creg_val, phba->HCregaddr);
9867 readl(phba->HCregaddr); /* flush */
9871 piocb->context2 = NULL;
9873 piocb->context_un.wait_queue = NULL;
9874 piocb->iocb_cmpl = NULL;
9879 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
9880 * @phba: Pointer to HBA context object.
9881 * @pmboxq: Pointer to driver mailbox object.
9882 * @timeout: Timeout in number of seconds.
9884 * This function issues the mailbox to firmware and waits for the
9885 * mailbox command to complete. If the mailbox command is not
9886 * completed within timeout seconds, it returns MBX_TIMEOUT.
9887 * The function waits for the mailbox completion using an
9888 * interruptible wait. If the thread is woken up due to a
9889 * signal, MBX_TIMEOUT error is returned to the caller. Caller
9890 * should not free the mailbox resources, if this function returns
9892 * This function will sleep while waiting for mailbox completion.
9893 * So, this function should not be called from any context which
9894 * does not allow sleeping. Due to the same reason, this function
9895 * cannot be called with interrupt disabled.
9896 * This function assumes that the mailbox completion occurs while
9897 * this function sleep. So, this function cannot be called from
9898 * the worker thread which processes mailbox completion.
9899 * This function is called in the context of HBA management
9901 * This function returns MBX_SUCCESS when successful.
9902 * This function is called with no lock held.
9905 lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
9908 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
9912 /* The caller must leave context1 empty. */
9913 if (pmboxq->context1)
9914 return MBX_NOT_FINISHED;
9916 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
9917 /* setup wake call as IOCB callback */
9918 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
9919 /* setup context field to pass wait_queue pointer to wake function */
9920 pmboxq->context1 = &done_q;
9922 /* now issue the command */
9923 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
9924 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
9925 wait_event_interruptible_timeout(done_q,
9926 pmboxq->mbox_flag & LPFC_MBX_WAKE,
9929 spin_lock_irqsave(&phba->hbalock, flag);
9930 pmboxq->context1 = NULL;
9932 * if LPFC_MBX_WAKE flag is set the mailbox is completed
9933 * else do not free the resources.
9935 if (pmboxq->mbox_flag & LPFC_MBX_WAKE) {
9936 retval = MBX_SUCCESS;
9937 lpfc_sli4_swap_str(phba, pmboxq);
9939 retval = MBX_TIMEOUT;
9940 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
9942 spin_unlock_irqrestore(&phba->hbalock, flag);
9949 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
9950 * @phba: Pointer to HBA context.
9952 * This function is called to shutdown the driver's mailbox sub-system.
9953 * It first marks the mailbox sub-system is in a block state to prevent
9954 * the asynchronous mailbox command from issued off the pending mailbox
9955 * command queue. If the mailbox command sub-system shutdown is due to
9956 * HBA error conditions such as EEH or ERATT, this routine shall invoke
9957 * the mailbox sub-system flush routine to forcefully bring down the
9958 * mailbox sub-system. Otherwise, if it is due to normal condition (such
9959 * as with offline or HBA function reset), this routine will wait for the
9960 * outstanding mailbox command to complete before invoking the mailbox
9961 * sub-system flush routine to gracefully bring down mailbox sub-system.
9964 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba)
9966 struct lpfc_sli *psli = &phba->sli;
9967 unsigned long timeout;
9969 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
9971 spin_lock_irq(&phba->hbalock);
9972 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
9974 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
9975 /* Determine how long we might wait for the active mailbox
9976 * command to be gracefully completed by firmware.
9978 if (phba->sli.mbox_active)
9979 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
9980 phba->sli.mbox_active) *
9982 spin_unlock_irq(&phba->hbalock);
9984 while (phba->sli.mbox_active) {
9985 /* Check active mailbox complete status every 2ms */
9987 if (time_after(jiffies, timeout))
9988 /* Timeout, let the mailbox flush routine to
9989 * forcefully release active mailbox command
9994 spin_unlock_irq(&phba->hbalock);
9996 lpfc_sli_mbox_sys_flush(phba);
10000 * lpfc_sli_eratt_read - read sli-3 error attention events
10001 * @phba: Pointer to HBA context.
10003 * This function is called to read the SLI3 device error attention registers
10004 * for possible error attention events. The caller must hold the hostlock
10005 * with spin_lock_irq().
10007 * This function returns 1 when there is Error Attention in the Host Attention
10008 * Register and returns 0 otherwise.
10011 lpfc_sli_eratt_read(struct lpfc_hba *phba)
10015 /* Read chip Host Attention (HA) register */
10016 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10019 if (ha_copy & HA_ERATT) {
10020 /* Read host status register to retrieve error event */
10021 if (lpfc_sli_read_hs(phba))
10024 /* Check if there is a deferred error condition is active */
10025 if ((HS_FFER1 & phba->work_hs) &&
10026 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
10027 HS_FFER6 | HS_FFER7 | HS_FFER8) & phba->work_hs)) {
10028 phba->hba_flag |= DEFER_ERATT;
10029 /* Clear all interrupt enable conditions */
10030 writel(0, phba->HCregaddr);
10031 readl(phba->HCregaddr);
10034 /* Set the driver HA work bitmap */
10035 phba->work_ha |= HA_ERATT;
10036 /* Indicate polling handles this ERATT */
10037 phba->hba_flag |= HBA_ERATT_HANDLED;
10043 /* Set the driver HS work bitmap */
10044 phba->work_hs |= UNPLUG_ERR;
10045 /* Set the driver HA work bitmap */
10046 phba->work_ha |= HA_ERATT;
10047 /* Indicate polling handles this ERATT */
10048 phba->hba_flag |= HBA_ERATT_HANDLED;
10053 * lpfc_sli4_eratt_read - read sli-4 error attention events
10054 * @phba: Pointer to HBA context.
10056 * This function is called to read the SLI4 device error attention registers
10057 * for possible error attention events. The caller must hold the hostlock
10058 * with spin_lock_irq().
10060 * This function returns 1 when there is Error Attention in the Host Attention
10061 * Register and returns 0 otherwise.
10064 lpfc_sli4_eratt_read(struct lpfc_hba *phba)
10066 uint32_t uerr_sta_hi, uerr_sta_lo;
10067 uint32_t if_type, portsmphr;
10068 struct lpfc_register portstat_reg;
10071 * For now, use the SLI4 device internal unrecoverable error
10072 * registers for error attention. This can be changed later.
10074 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10076 case LPFC_SLI_INTF_IF_TYPE_0:
10077 if (lpfc_readl(phba->sli4_hba.u.if_type0.UERRLOregaddr,
10079 lpfc_readl(phba->sli4_hba.u.if_type0.UERRHIregaddr,
10081 phba->work_hs |= UNPLUG_ERR;
10082 phba->work_ha |= HA_ERATT;
10083 phba->hba_flag |= HBA_ERATT_HANDLED;
10086 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
10087 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
10088 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10089 "1423 HBA Unrecoverable error: "
10090 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
10091 "ue_mask_lo_reg=0x%x, "
10092 "ue_mask_hi_reg=0x%x\n",
10093 uerr_sta_lo, uerr_sta_hi,
10094 phba->sli4_hba.ue_mask_lo,
10095 phba->sli4_hba.ue_mask_hi);
10096 phba->work_status[0] = uerr_sta_lo;
10097 phba->work_status[1] = uerr_sta_hi;
10098 phba->work_ha |= HA_ERATT;
10099 phba->hba_flag |= HBA_ERATT_HANDLED;
10103 case LPFC_SLI_INTF_IF_TYPE_2:
10104 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
10105 &portstat_reg.word0) ||
10106 lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
10108 phba->work_hs |= UNPLUG_ERR;
10109 phba->work_ha |= HA_ERATT;
10110 phba->hba_flag |= HBA_ERATT_HANDLED;
10113 if (bf_get(lpfc_sliport_status_err, &portstat_reg)) {
10114 phba->work_status[0] =
10115 readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
10116 phba->work_status[1] =
10117 readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
10118 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10119 "2885 Port Status Event: "
10120 "port status reg 0x%x, "
10121 "port smphr reg 0x%x, "
10122 "error 1=0x%x, error 2=0x%x\n",
10123 portstat_reg.word0,
10125 phba->work_status[0],
10126 phba->work_status[1]);
10127 phba->work_ha |= HA_ERATT;
10128 phba->hba_flag |= HBA_ERATT_HANDLED;
10132 case LPFC_SLI_INTF_IF_TYPE_1:
10134 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10135 "2886 HBA Error Attention on unsupported "
10136 "if type %d.", if_type);
10144 * lpfc_sli_check_eratt - check error attention events
10145 * @phba: Pointer to HBA context.
10147 * This function is called from timer soft interrupt context to check HBA's
10148 * error attention register bit for error attention events.
10150 * This function returns 1 when there is Error Attention in the Host Attention
10151 * Register and returns 0 otherwise.
10154 lpfc_sli_check_eratt(struct lpfc_hba *phba)
10158 /* If somebody is waiting to handle an eratt, don't process it
10159 * here. The brdkill function will do this.
10161 if (phba->link_flag & LS_IGNORE_ERATT)
10164 /* Check if interrupt handler handles this ERATT */
10165 spin_lock_irq(&phba->hbalock);
10166 if (phba->hba_flag & HBA_ERATT_HANDLED) {
10167 /* Interrupt handler has handled ERATT */
10168 spin_unlock_irq(&phba->hbalock);
10173 * If there is deferred error attention, do not check for error
10176 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10177 spin_unlock_irq(&phba->hbalock);
10181 /* If PCI channel is offline, don't process it */
10182 if (unlikely(pci_channel_offline(phba->pcidev))) {
10183 spin_unlock_irq(&phba->hbalock);
10187 switch (phba->sli_rev) {
10188 case LPFC_SLI_REV2:
10189 case LPFC_SLI_REV3:
10190 /* Read chip Host Attention (HA) register */
10191 ha_copy = lpfc_sli_eratt_read(phba);
10193 case LPFC_SLI_REV4:
10194 /* Read device Uncoverable Error (UERR) registers */
10195 ha_copy = lpfc_sli4_eratt_read(phba);
10198 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10199 "0299 Invalid SLI revision (%d)\n",
10204 spin_unlock_irq(&phba->hbalock);
10210 * lpfc_intr_state_check - Check device state for interrupt handling
10211 * @phba: Pointer to HBA context.
10213 * This inline routine checks whether a device or its PCI slot is in a state
10214 * that the interrupt should be handled.
10216 * This function returns 0 if the device or the PCI slot is in a state that
10217 * interrupt should be handled, otherwise -EIO.
10220 lpfc_intr_state_check(struct lpfc_hba *phba)
10222 /* If the pci channel is offline, ignore all the interrupts */
10223 if (unlikely(pci_channel_offline(phba->pcidev)))
10226 /* Update device level interrupt statistics */
10227 phba->sli.slistat.sli_intr++;
10229 /* Ignore all interrupts during initialization. */
10230 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
10237 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
10238 * @irq: Interrupt number.
10239 * @dev_id: The device context pointer.
10241 * This function is directly called from the PCI layer as an interrupt
10242 * service routine when device with SLI-3 interface spec is enabled with
10243 * MSI-X multi-message interrupt mode and there are slow-path events in
10244 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
10245 * interrupt mode, this function is called as part of the device-level
10246 * interrupt handler. When the PCI slot is in error recovery or the HBA
10247 * is undergoing initialization, the interrupt handler will not process
10248 * the interrupt. The link attention and ELS ring attention events are
10249 * handled by the worker thread. The interrupt handler signals the worker
10250 * thread and returns for these events. This function is called without
10251 * any lock held. It gets the hbalock to access and update SLI data
10254 * This function returns IRQ_HANDLED when interrupt is handled else it
10255 * returns IRQ_NONE.
10258 lpfc_sli_sp_intr_handler(int irq, void *dev_id)
10260 struct lpfc_hba *phba;
10261 uint32_t ha_copy, hc_copy;
10262 uint32_t work_ha_copy;
10263 unsigned long status;
10264 unsigned long iflag;
10267 MAILBOX_t *mbox, *pmbox;
10268 struct lpfc_vport *vport;
10269 struct lpfc_nodelist *ndlp;
10270 struct lpfc_dmabuf *mp;
10275 * Get the driver's phba structure from the dev_id and
10276 * assume the HBA is not interrupting.
10278 phba = (struct lpfc_hba *)dev_id;
10280 if (unlikely(!phba))
10284 * Stuff needs to be attented to when this function is invoked as an
10285 * individual interrupt handler in MSI-X multi-message interrupt mode
10287 if (phba->intr_type == MSIX) {
10288 /* Check device state for handling interrupt */
10289 if (lpfc_intr_state_check(phba))
10291 /* Need to read HA REG for slow-path events */
10292 spin_lock_irqsave(&phba->hbalock, iflag);
10293 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10295 /* If somebody is waiting to handle an eratt don't process it
10296 * here. The brdkill function will do this.
10298 if (phba->link_flag & LS_IGNORE_ERATT)
10299 ha_copy &= ~HA_ERATT;
10300 /* Check the need for handling ERATT in interrupt handler */
10301 if (ha_copy & HA_ERATT) {
10302 if (phba->hba_flag & HBA_ERATT_HANDLED)
10303 /* ERATT polling has handled ERATT */
10304 ha_copy &= ~HA_ERATT;
10306 /* Indicate interrupt handler handles ERATT */
10307 phba->hba_flag |= HBA_ERATT_HANDLED;
10311 * If there is deferred error attention, do not check for any
10314 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10315 spin_unlock_irqrestore(&phba->hbalock, iflag);
10319 /* Clear up only attention source related to slow-path */
10320 if (lpfc_readl(phba->HCregaddr, &hc_copy))
10323 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
10324 HC_LAINT_ENA | HC_ERINT_ENA),
10326 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
10328 writel(hc_copy, phba->HCregaddr);
10329 readl(phba->HAregaddr); /* flush */
10330 spin_unlock_irqrestore(&phba->hbalock, iflag);
10332 ha_copy = phba->ha_copy;
10334 work_ha_copy = ha_copy & phba->work_ha_mask;
10336 if (work_ha_copy) {
10337 if (work_ha_copy & HA_LATT) {
10338 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
10340 * Turn off Link Attention interrupts
10341 * until CLEAR_LA done
10343 spin_lock_irqsave(&phba->hbalock, iflag);
10344 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
10345 if (lpfc_readl(phba->HCregaddr, &control))
10347 control &= ~HC_LAINT_ENA;
10348 writel(control, phba->HCregaddr);
10349 readl(phba->HCregaddr); /* flush */
10350 spin_unlock_irqrestore(&phba->hbalock, iflag);
10353 work_ha_copy &= ~HA_LATT;
10356 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
10358 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
10359 * the only slow ring.
10361 status = (work_ha_copy &
10362 (HA_RXMASK << (4*LPFC_ELS_RING)));
10363 status >>= (4*LPFC_ELS_RING);
10364 if (status & HA_RXMASK) {
10365 spin_lock_irqsave(&phba->hbalock, iflag);
10366 if (lpfc_readl(phba->HCregaddr, &control))
10369 lpfc_debugfs_slow_ring_trc(phba,
10370 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
10372 (uint32_t)phba->sli.slistat.sli_intr);
10374 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
10375 lpfc_debugfs_slow_ring_trc(phba,
10376 "ISR Disable ring:"
10377 "pwork:x%x hawork:x%x wait:x%x",
10378 phba->work_ha, work_ha_copy,
10379 (uint32_t)((unsigned long)
10380 &phba->work_waitq));
10383 ~(HC_R0INT_ENA << LPFC_ELS_RING);
10384 writel(control, phba->HCregaddr);
10385 readl(phba->HCregaddr); /* flush */
10388 lpfc_debugfs_slow_ring_trc(phba,
10389 "ISR slow ring: pwork:"
10390 "x%x hawork:x%x wait:x%x",
10391 phba->work_ha, work_ha_copy,
10392 (uint32_t)((unsigned long)
10393 &phba->work_waitq));
10395 spin_unlock_irqrestore(&phba->hbalock, iflag);
10398 spin_lock_irqsave(&phba->hbalock, iflag);
10399 if (work_ha_copy & HA_ERATT) {
10400 if (lpfc_sli_read_hs(phba))
10403 * Check if there is a deferred error condition
10406 if ((HS_FFER1 & phba->work_hs) &&
10407 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
10408 HS_FFER6 | HS_FFER7 | HS_FFER8) &
10410 phba->hba_flag |= DEFER_ERATT;
10411 /* Clear all interrupt enable conditions */
10412 writel(0, phba->HCregaddr);
10413 readl(phba->HCregaddr);
10417 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
10418 pmb = phba->sli.mbox_active;
10419 pmbox = &pmb->u.mb;
10421 vport = pmb->vport;
10423 /* First check out the status word */
10424 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
10425 if (pmbox->mbxOwner != OWN_HOST) {
10426 spin_unlock_irqrestore(&phba->hbalock, iflag);
10428 * Stray Mailbox Interrupt, mbxCommand <cmd>
10429 * mbxStatus <status>
10431 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
10433 "(%d):0304 Stray Mailbox "
10434 "Interrupt mbxCommand x%x "
10436 (vport ? vport->vpi : 0),
10439 /* clear mailbox attention bit */
10440 work_ha_copy &= ~HA_MBATT;
10442 phba->sli.mbox_active = NULL;
10443 spin_unlock_irqrestore(&phba->hbalock, iflag);
10444 phba->last_completion_time = jiffies;
10445 del_timer(&phba->sli.mbox_tmo);
10446 if (pmb->mbox_cmpl) {
10447 lpfc_sli_pcimem_bcopy(mbox, pmbox,
10449 if (pmb->out_ext_byte_len &&
10451 lpfc_sli_pcimem_bcopy(
10454 pmb->out_ext_byte_len);
10456 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
10457 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
10459 lpfc_debugfs_disc_trc(vport,
10460 LPFC_DISC_TRC_MBOX_VPORT,
10461 "MBOX dflt rpi: : "
10462 "status:x%x rpi:x%x",
10463 (uint32_t)pmbox->mbxStatus,
10464 pmbox->un.varWords[0], 0);
10466 if (!pmbox->mbxStatus) {
10467 mp = (struct lpfc_dmabuf *)
10469 ndlp = (struct lpfc_nodelist *)
10472 /* Reg_LOGIN of dflt RPI was
10473 * successful. new lets get
10474 * rid of the RPI using the
10475 * same mbox buffer.
10477 lpfc_unreg_login(phba,
10479 pmbox->un.varWords[0],
10482 lpfc_mbx_cmpl_dflt_rpi;
10483 pmb->context1 = mp;
10484 pmb->context2 = ndlp;
10485 pmb->vport = vport;
10486 rc = lpfc_sli_issue_mbox(phba,
10489 if (rc != MBX_BUSY)
10490 lpfc_printf_log(phba,
10492 LOG_MBOX | LOG_SLI,
10493 "0350 rc should have"
10494 "been MBX_BUSY\n");
10495 if (rc != MBX_NOT_FINISHED)
10496 goto send_current_mbox;
10500 &phba->pport->work_port_lock,
10502 phba->pport->work_port_events &=
10504 spin_unlock_irqrestore(
10505 &phba->pport->work_port_lock,
10507 lpfc_mbox_cmpl_put(phba, pmb);
10510 spin_unlock_irqrestore(&phba->hbalock, iflag);
10512 if ((work_ha_copy & HA_MBATT) &&
10513 (phba->sli.mbox_active == NULL)) {
10515 /* Process next mailbox command if there is one */
10517 rc = lpfc_sli_issue_mbox(phba, NULL,
10519 } while (rc == MBX_NOT_FINISHED);
10520 if (rc != MBX_SUCCESS)
10521 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
10522 LOG_SLI, "0349 rc should be "
10526 spin_lock_irqsave(&phba->hbalock, iflag);
10527 phba->work_ha |= work_ha_copy;
10528 spin_unlock_irqrestore(&phba->hbalock, iflag);
10529 lpfc_worker_wake_up(phba);
10531 return IRQ_HANDLED;
10533 spin_unlock_irqrestore(&phba->hbalock, iflag);
10534 return IRQ_HANDLED;
10536 } /* lpfc_sli_sp_intr_handler */
10539 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
10540 * @irq: Interrupt number.
10541 * @dev_id: The device context pointer.
10543 * This function is directly called from the PCI layer as an interrupt
10544 * service routine when device with SLI-3 interface spec is enabled with
10545 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
10546 * ring event in the HBA. However, when the device is enabled with either
10547 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
10548 * device-level interrupt handler. When the PCI slot is in error recovery
10549 * or the HBA is undergoing initialization, the interrupt handler will not
10550 * process the interrupt. The SCSI FCP fast-path ring event are handled in
10551 * the intrrupt context. This function is called without any lock held.
10552 * It gets the hbalock to access and update SLI data structures.
10554 * This function returns IRQ_HANDLED when interrupt is handled else it
10555 * returns IRQ_NONE.
10558 lpfc_sli_fp_intr_handler(int irq, void *dev_id)
10560 struct lpfc_hba *phba;
10562 unsigned long status;
10563 unsigned long iflag;
10565 /* Get the driver's phba structure from the dev_id and
10566 * assume the HBA is not interrupting.
10568 phba = (struct lpfc_hba *) dev_id;
10570 if (unlikely(!phba))
10574 * Stuff needs to be attented to when this function is invoked as an
10575 * individual interrupt handler in MSI-X multi-message interrupt mode
10577 if (phba->intr_type == MSIX) {
10578 /* Check device state for handling interrupt */
10579 if (lpfc_intr_state_check(phba))
10581 /* Need to read HA REG for FCP ring and other ring events */
10582 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10583 return IRQ_HANDLED;
10584 /* Clear up only attention source related to fast-path */
10585 spin_lock_irqsave(&phba->hbalock, iflag);
10587 * If there is deferred error attention, do not check for
10590 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10591 spin_unlock_irqrestore(&phba->hbalock, iflag);
10594 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
10596 readl(phba->HAregaddr); /* flush */
10597 spin_unlock_irqrestore(&phba->hbalock, iflag);
10599 ha_copy = phba->ha_copy;
10602 * Process all events on FCP ring. Take the optimized path for FCP IO.
10604 ha_copy &= ~(phba->work_ha_mask);
10606 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
10607 status >>= (4*LPFC_FCP_RING);
10608 if (status & HA_RXMASK)
10609 lpfc_sli_handle_fast_ring_event(phba,
10610 &phba->sli.ring[LPFC_FCP_RING],
10613 if (phba->cfg_multi_ring_support == 2) {
10615 * Process all events on extra ring. Take the optimized path
10616 * for extra ring IO.
10618 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
10619 status >>= (4*LPFC_EXTRA_RING);
10620 if (status & HA_RXMASK) {
10621 lpfc_sli_handle_fast_ring_event(phba,
10622 &phba->sli.ring[LPFC_EXTRA_RING],
10626 return IRQ_HANDLED;
10627 } /* lpfc_sli_fp_intr_handler */
10630 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
10631 * @irq: Interrupt number.
10632 * @dev_id: The device context pointer.
10634 * This function is the HBA device-level interrupt handler to device with
10635 * SLI-3 interface spec, called from the PCI layer when either MSI or
10636 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
10637 * requires driver attention. This function invokes the slow-path interrupt
10638 * attention handling function and fast-path interrupt attention handling
10639 * function in turn to process the relevant HBA attention events. This
10640 * function is called without any lock held. It gets the hbalock to access
10641 * and update SLI data structures.
10643 * This function returns IRQ_HANDLED when interrupt is handled, else it
10644 * returns IRQ_NONE.
10647 lpfc_sli_intr_handler(int irq, void *dev_id)
10649 struct lpfc_hba *phba;
10650 irqreturn_t sp_irq_rc, fp_irq_rc;
10651 unsigned long status1, status2;
10655 * Get the driver's phba structure from the dev_id and
10656 * assume the HBA is not interrupting.
10658 phba = (struct lpfc_hba *) dev_id;
10660 if (unlikely(!phba))
10663 /* Check device state for handling interrupt */
10664 if (lpfc_intr_state_check(phba))
10667 spin_lock(&phba->hbalock);
10668 if (lpfc_readl(phba->HAregaddr, &phba->ha_copy)) {
10669 spin_unlock(&phba->hbalock);
10670 return IRQ_HANDLED;
10673 if (unlikely(!phba->ha_copy)) {
10674 spin_unlock(&phba->hbalock);
10676 } else if (phba->ha_copy & HA_ERATT) {
10677 if (phba->hba_flag & HBA_ERATT_HANDLED)
10678 /* ERATT polling has handled ERATT */
10679 phba->ha_copy &= ~HA_ERATT;
10681 /* Indicate interrupt handler handles ERATT */
10682 phba->hba_flag |= HBA_ERATT_HANDLED;
10686 * If there is deferred error attention, do not check for any interrupt.
10688 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10689 spin_unlock(&phba->hbalock);
10693 /* Clear attention sources except link and error attentions */
10694 if (lpfc_readl(phba->HCregaddr, &hc_copy)) {
10695 spin_unlock(&phba->hbalock);
10696 return IRQ_HANDLED;
10698 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
10699 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
10701 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
10702 writel(hc_copy, phba->HCregaddr);
10703 readl(phba->HAregaddr); /* flush */
10704 spin_unlock(&phba->hbalock);
10707 * Invokes slow-path host attention interrupt handling as appropriate.
10710 /* status of events with mailbox and link attention */
10711 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
10713 /* status of events with ELS ring */
10714 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
10715 status2 >>= (4*LPFC_ELS_RING);
10717 if (status1 || (status2 & HA_RXMASK))
10718 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
10720 sp_irq_rc = IRQ_NONE;
10723 * Invoke fast-path host attention interrupt handling as appropriate.
10726 /* status of events with FCP ring */
10727 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
10728 status1 >>= (4*LPFC_FCP_RING);
10730 /* status of events with extra ring */
10731 if (phba->cfg_multi_ring_support == 2) {
10732 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
10733 status2 >>= (4*LPFC_EXTRA_RING);
10737 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
10738 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
10740 fp_irq_rc = IRQ_NONE;
10742 /* Return device-level interrupt handling status */
10743 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
10744 } /* lpfc_sli_intr_handler */
10747 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
10748 * @phba: pointer to lpfc hba data structure.
10750 * This routine is invoked by the worker thread to process all the pending
10751 * SLI4 FCP abort XRI events.
10753 void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba)
10755 struct lpfc_cq_event *cq_event;
10757 /* First, declare the fcp xri abort event has been handled */
10758 spin_lock_irq(&phba->hbalock);
10759 phba->hba_flag &= ~FCP_XRI_ABORT_EVENT;
10760 spin_unlock_irq(&phba->hbalock);
10761 /* Now, handle all the fcp xri abort events */
10762 while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) {
10763 /* Get the first event from the head of the event queue */
10764 spin_lock_irq(&phba->hbalock);
10765 list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
10766 cq_event, struct lpfc_cq_event, list);
10767 spin_unlock_irq(&phba->hbalock);
10768 /* Notify aborted XRI for FCP work queue */
10769 lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
10770 /* Free the event processed back to the free pool */
10771 lpfc_sli4_cq_event_release(phba, cq_event);
10776 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
10777 * @phba: pointer to lpfc hba data structure.
10779 * This routine is invoked by the worker thread to process all the pending
10780 * SLI4 els abort xri events.
10782 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
10784 struct lpfc_cq_event *cq_event;
10786 /* First, declare the els xri abort event has been handled */
10787 spin_lock_irq(&phba->hbalock);
10788 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
10789 spin_unlock_irq(&phba->hbalock);
10790 /* Now, handle all the els xri abort events */
10791 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
10792 /* Get the first event from the head of the event queue */
10793 spin_lock_irq(&phba->hbalock);
10794 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
10795 cq_event, struct lpfc_cq_event, list);
10796 spin_unlock_irq(&phba->hbalock);
10797 /* Notify aborted XRI for ELS work queue */
10798 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
10799 /* Free the event processed back to the free pool */
10800 lpfc_sli4_cq_event_release(phba, cq_event);
10805 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
10806 * @phba: pointer to lpfc hba data structure
10807 * @pIocbIn: pointer to the rspiocbq
10808 * @pIocbOut: pointer to the cmdiocbq
10809 * @wcqe: pointer to the complete wcqe
10811 * This routine transfers the fields of a command iocbq to a response iocbq
10812 * by copying all the IOCB fields from command iocbq and transferring the
10813 * completion status information from the complete wcqe.
10816 lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
10817 struct lpfc_iocbq *pIocbIn,
10818 struct lpfc_iocbq *pIocbOut,
10819 struct lpfc_wcqe_complete *wcqe)
10821 unsigned long iflags;
10823 size_t offset = offsetof(struct lpfc_iocbq, iocb);
10825 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
10826 sizeof(struct lpfc_iocbq) - offset);
10827 /* Map WCQE parameters into irspiocb parameters */
10828 status = bf_get(lpfc_wcqe_c_status, wcqe);
10829 pIocbIn->iocb.ulpStatus = (status & LPFC_IOCB_STATUS_MASK);
10830 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
10831 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
10832 pIocbIn->iocb.un.fcpi.fcpi_parm =
10833 pIocbOut->iocb.un.fcpi.fcpi_parm -
10834 wcqe->total_data_placed;
10836 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
10838 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
10839 pIocbIn->iocb.un.genreq64.bdl.bdeSize = wcqe->total_data_placed;
10842 /* Convert BG errors for completion status */
10843 if (status == CQE_STATUS_DI_ERROR) {
10844 pIocbIn->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
10846 if (bf_get(lpfc_wcqe_c_bg_edir, wcqe))
10847 pIocbIn->iocb.un.ulpWord[4] = IOERR_RX_DMA_FAILED;
10849 pIocbIn->iocb.un.ulpWord[4] = IOERR_TX_DMA_FAILED;
10851 pIocbIn->iocb.unsli3.sli3_bg.bgstat = 0;
10852 if (bf_get(lpfc_wcqe_c_bg_ge, wcqe)) /* Guard Check failed */
10853 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
10854 BGS_GUARD_ERR_MASK;
10855 if (bf_get(lpfc_wcqe_c_bg_ae, wcqe)) /* App Tag Check failed */
10856 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
10857 BGS_APPTAG_ERR_MASK;
10858 if (bf_get(lpfc_wcqe_c_bg_re, wcqe)) /* Ref Tag Check failed */
10859 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
10860 BGS_REFTAG_ERR_MASK;
10862 /* Check to see if there was any good data before the error */
10863 if (bf_get(lpfc_wcqe_c_bg_tdpv, wcqe)) {
10864 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
10865 BGS_HI_WATER_MARK_PRESENT_MASK;
10866 pIocbIn->iocb.unsli3.sli3_bg.bghm =
10867 wcqe->total_data_placed;
10871 * Set ALL the error bits to indicate we don't know what
10872 * type of error it is.
10874 if (!pIocbIn->iocb.unsli3.sli3_bg.bgstat)
10875 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
10876 (BGS_REFTAG_ERR_MASK | BGS_APPTAG_ERR_MASK |
10877 BGS_GUARD_ERR_MASK);
10880 /* Pick up HBA exchange busy condition */
10881 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
10882 spin_lock_irqsave(&phba->hbalock, iflags);
10883 pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY;
10884 spin_unlock_irqrestore(&phba->hbalock, iflags);
10889 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
10890 * @phba: Pointer to HBA context object.
10891 * @wcqe: Pointer to work-queue completion queue entry.
10893 * This routine handles an ELS work-queue completion event and construct
10894 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
10895 * discovery engine to handle.
10897 * Return: Pointer to the receive IOCBQ, NULL otherwise.
10899 static struct lpfc_iocbq *
10900 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
10901 struct lpfc_iocbq *irspiocbq)
10903 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
10904 struct lpfc_iocbq *cmdiocbq;
10905 struct lpfc_wcqe_complete *wcqe;
10906 unsigned long iflags;
10908 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
10909 spin_lock_irqsave(&phba->hbalock, iflags);
10910 pring->stats.iocb_event++;
10911 /* Look up the ELS command IOCB and create pseudo response IOCB */
10912 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
10913 bf_get(lpfc_wcqe_c_request_tag, wcqe));
10914 spin_unlock_irqrestore(&phba->hbalock, iflags);
10916 if (unlikely(!cmdiocbq)) {
10917 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
10918 "0386 ELS complete with no corresponding "
10919 "cmdiocb: iotag (%d)\n",
10920 bf_get(lpfc_wcqe_c_request_tag, wcqe));
10921 lpfc_sli_release_iocbq(phba, irspiocbq);
10925 /* Fake the irspiocbq and copy necessary response information */
10926 lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe);
10932 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
10933 * @phba: Pointer to HBA context object.
10934 * @cqe: Pointer to mailbox completion queue entry.
10936 * This routine process a mailbox completion queue entry with asynchrous
10939 * Return: true if work posted to worker thread, otherwise false.
10942 lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
10944 struct lpfc_cq_event *cq_event;
10945 unsigned long iflags;
10947 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10948 "0392 Async Event: word0:x%x, word1:x%x, "
10949 "word2:x%x, word3:x%x\n", mcqe->word0,
10950 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
10952 /* Allocate a new internal CQ_EVENT entry */
10953 cq_event = lpfc_sli4_cq_event_alloc(phba);
10955 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10956 "0394 Failed to allocate CQ_EVENT entry\n");
10960 /* Move the CQE into an asynchronous event entry */
10961 memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe));
10962 spin_lock_irqsave(&phba->hbalock, iflags);
10963 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
10964 /* Set the async event flag */
10965 phba->hba_flag |= ASYNC_EVENT;
10966 spin_unlock_irqrestore(&phba->hbalock, iflags);
10972 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
10973 * @phba: Pointer to HBA context object.
10974 * @cqe: Pointer to mailbox completion queue entry.
10976 * This routine process a mailbox completion queue entry with mailbox
10977 * completion event.
10979 * Return: true if work posted to worker thread, otherwise false.
10982 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
10984 uint32_t mcqe_status;
10985 MAILBOX_t *mbox, *pmbox;
10986 struct lpfc_mqe *mqe;
10987 struct lpfc_vport *vport;
10988 struct lpfc_nodelist *ndlp;
10989 struct lpfc_dmabuf *mp;
10990 unsigned long iflags;
10992 bool workposted = false;
10995 /* If not a mailbox complete MCQE, out by checking mailbox consume */
10996 if (!bf_get(lpfc_trailer_completed, mcqe))
10997 goto out_no_mqe_complete;
10999 /* Get the reference to the active mbox command */
11000 spin_lock_irqsave(&phba->hbalock, iflags);
11001 pmb = phba->sli.mbox_active;
11002 if (unlikely(!pmb)) {
11003 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
11004 "1832 No pending MBOX command to handle\n");
11005 spin_unlock_irqrestore(&phba->hbalock, iflags);
11006 goto out_no_mqe_complete;
11008 spin_unlock_irqrestore(&phba->hbalock, iflags);
11010 pmbox = (MAILBOX_t *)&pmb->u.mqe;
11012 vport = pmb->vport;
11014 /* Reset heartbeat timer */
11015 phba->last_completion_time = jiffies;
11016 del_timer(&phba->sli.mbox_tmo);
11018 /* Move mbox data to caller's mailbox region, do endian swapping */
11019 if (pmb->mbox_cmpl && mbox)
11020 lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
11023 * For mcqe errors, conditionally move a modified error code to
11024 * the mbox so that the error will not be missed.
11026 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
11027 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
11028 if (bf_get(lpfc_mqe_status, mqe) == MBX_SUCCESS)
11029 bf_set(lpfc_mqe_status, mqe,
11030 (LPFC_MBX_ERROR_RANGE | mcqe_status));
11032 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
11033 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
11034 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
11035 "MBOX dflt rpi: status:x%x rpi:x%x",
11037 pmbox->un.varWords[0], 0);
11038 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
11039 mp = (struct lpfc_dmabuf *)(pmb->context1);
11040 ndlp = (struct lpfc_nodelist *)pmb->context2;
11041 /* Reg_LOGIN of dflt RPI was successful. Now lets get
11042 * RID of the PPI using the same mbox buffer.
11044 lpfc_unreg_login(phba, vport->vpi,
11045 pmbox->un.varWords[0], pmb);
11046 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
11047 pmb->context1 = mp;
11048 pmb->context2 = ndlp;
11049 pmb->vport = vport;
11050 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
11051 if (rc != MBX_BUSY)
11052 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
11053 LOG_SLI, "0385 rc should "
11054 "have been MBX_BUSY\n");
11055 if (rc != MBX_NOT_FINISHED)
11056 goto send_current_mbox;
11059 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
11060 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
11061 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
11063 /* There is mailbox completion work to do */
11064 spin_lock_irqsave(&phba->hbalock, iflags);
11065 __lpfc_mbox_cmpl_put(phba, pmb);
11066 phba->work_ha |= HA_MBATT;
11067 spin_unlock_irqrestore(&phba->hbalock, iflags);
11071 spin_lock_irqsave(&phba->hbalock, iflags);
11072 /* Release the mailbox command posting token */
11073 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
11074 /* Setting active mailbox pointer need to be in sync to flag clear */
11075 phba->sli.mbox_active = NULL;
11076 spin_unlock_irqrestore(&phba->hbalock, iflags);
11077 /* Wake up worker thread to post the next pending mailbox command */
11078 lpfc_worker_wake_up(phba);
11079 out_no_mqe_complete:
11080 if (bf_get(lpfc_trailer_consumed, mcqe))
11081 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
11086 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
11087 * @phba: Pointer to HBA context object.
11088 * @cqe: Pointer to mailbox completion queue entry.
11090 * This routine process a mailbox completion queue entry, it invokes the
11091 * proper mailbox complete handling or asynchrous event handling routine
11092 * according to the MCQE's async bit.
11094 * Return: true if work posted to worker thread, otherwise false.
11097 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
11099 struct lpfc_mcqe mcqe;
11102 /* Copy the mailbox MCQE and convert endian order as needed */
11103 lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
11105 /* Invoke the proper event handling routine */
11106 if (!bf_get(lpfc_trailer_async, &mcqe))
11107 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
11109 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
11114 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
11115 * @phba: Pointer to HBA context object.
11116 * @wcqe: Pointer to work-queue completion queue entry.
11118 * This routine handles an ELS work-queue completion event.
11120 * Return: true if work posted to worker thread, otherwise false.
11123 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba,
11124 struct lpfc_wcqe_complete *wcqe)
11126 struct lpfc_iocbq *irspiocbq;
11127 unsigned long iflags;
11128 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_FCP_RING];
11130 /* Get an irspiocbq for later ELS response processing use */
11131 irspiocbq = lpfc_sli_get_iocbq(phba);
11133 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11134 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
11135 "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n",
11136 pring->txq_cnt, phba->iocb_cnt,
11137 phba->sli.ring[LPFC_FCP_RING].txcmplq_cnt,
11138 phba->sli.ring[LPFC_ELS_RING].txcmplq_cnt);
11142 /* Save off the slow-path queue event for work thread to process */
11143 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
11144 spin_lock_irqsave(&phba->hbalock, iflags);
11145 list_add_tail(&irspiocbq->cq_event.list,
11146 &phba->sli4_hba.sp_queue_event);
11147 phba->hba_flag |= HBA_SP_QUEUE_EVT;
11148 spin_unlock_irqrestore(&phba->hbalock, iflags);
11154 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
11155 * @phba: Pointer to HBA context object.
11156 * @wcqe: Pointer to work-queue completion queue entry.
11158 * This routine handles slow-path WQ entry comsumed event by invoking the
11159 * proper WQ release routine to the slow-path WQ.
11162 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
11163 struct lpfc_wcqe_release *wcqe)
11165 /* sanity check on queue memory */
11166 if (unlikely(!phba->sli4_hba.els_wq))
11168 /* Check for the slow-path ELS work queue */
11169 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
11170 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
11171 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
11173 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11174 "2579 Slow-path wqe consume event carries "
11175 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
11176 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
11177 phba->sli4_hba.els_wq->queue_id);
11181 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
11182 * @phba: Pointer to HBA context object.
11183 * @cq: Pointer to a WQ completion queue.
11184 * @wcqe: Pointer to work-queue completion queue entry.
11186 * This routine handles an XRI abort event.
11188 * Return: true if work posted to worker thread, otherwise false.
11191 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
11192 struct lpfc_queue *cq,
11193 struct sli4_wcqe_xri_aborted *wcqe)
11195 bool workposted = false;
11196 struct lpfc_cq_event *cq_event;
11197 unsigned long iflags;
11199 /* Allocate a new internal CQ_EVENT entry */
11200 cq_event = lpfc_sli4_cq_event_alloc(phba);
11202 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11203 "0602 Failed to allocate CQ_EVENT entry\n");
11207 /* Move the CQE into the proper xri abort event list */
11208 memcpy(&cq_event->cqe, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
11209 switch (cq->subtype) {
11211 spin_lock_irqsave(&phba->hbalock, iflags);
11212 list_add_tail(&cq_event->list,
11213 &phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
11214 /* Set the fcp xri abort event flag */
11215 phba->hba_flag |= FCP_XRI_ABORT_EVENT;
11216 spin_unlock_irqrestore(&phba->hbalock, iflags);
11220 spin_lock_irqsave(&phba->hbalock, iflags);
11221 list_add_tail(&cq_event->list,
11222 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
11223 /* Set the els xri abort event flag */
11224 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
11225 spin_unlock_irqrestore(&phba->hbalock, iflags);
11229 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11230 "0603 Invalid work queue CQE subtype (x%x)\n",
11232 workposted = false;
11239 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
11240 * @phba: Pointer to HBA context object.
11241 * @rcqe: Pointer to receive-queue completion queue entry.
11243 * This routine process a receive-queue completion queue entry.
11245 * Return: true if work posted to worker thread, otherwise false.
11248 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
11250 bool workposted = false;
11251 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
11252 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
11253 struct hbq_dmabuf *dma_buf;
11254 uint32_t status, rq_id;
11255 unsigned long iflags;
11257 /* sanity check on queue memory */
11258 if (unlikely(!hrq) || unlikely(!drq))
11261 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
11262 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
11264 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
11265 if (rq_id != hrq->queue_id)
11268 status = bf_get(lpfc_rcqe_status, rcqe);
11270 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
11271 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11272 "2537 Receive Frame Truncated!!\n");
11273 case FC_STATUS_RQ_SUCCESS:
11274 lpfc_sli4_rq_release(hrq, drq);
11275 spin_lock_irqsave(&phba->hbalock, iflags);
11276 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
11278 spin_unlock_irqrestore(&phba->hbalock, iflags);
11281 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
11282 /* save off the frame for the word thread to process */
11283 list_add_tail(&dma_buf->cq_event.list,
11284 &phba->sli4_hba.sp_queue_event);
11285 /* Frame received */
11286 phba->hba_flag |= HBA_SP_QUEUE_EVT;
11287 spin_unlock_irqrestore(&phba->hbalock, iflags);
11290 case FC_STATUS_INSUFF_BUF_NEED_BUF:
11291 case FC_STATUS_INSUFF_BUF_FRM_DISC:
11292 /* Post more buffers if possible */
11293 spin_lock_irqsave(&phba->hbalock, iflags);
11294 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
11295 spin_unlock_irqrestore(&phba->hbalock, iflags);
11304 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
11305 * @phba: Pointer to HBA context object.
11306 * @cq: Pointer to the completion queue.
11307 * @wcqe: Pointer to a completion queue entry.
11309 * This routine process a slow-path work-queue or receive queue completion queue
11312 * Return: true if work posted to worker thread, otherwise false.
11315 lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11316 struct lpfc_cqe *cqe)
11318 struct lpfc_cqe cqevt;
11319 bool workposted = false;
11321 /* Copy the work queue CQE and convert endian order if needed */
11322 lpfc_sli_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
11324 /* Check and process for different type of WCQE and dispatch */
11325 switch (bf_get(lpfc_cqe_code, &cqevt)) {
11326 case CQE_CODE_COMPL_WQE:
11327 /* Process the WQ/RQ complete event */
11328 phba->last_completion_time = jiffies;
11329 workposted = lpfc_sli4_sp_handle_els_wcqe(phba,
11330 (struct lpfc_wcqe_complete *)&cqevt);
11332 case CQE_CODE_RELEASE_WQE:
11333 /* Process the WQ release event */
11334 lpfc_sli4_sp_handle_rel_wcqe(phba,
11335 (struct lpfc_wcqe_release *)&cqevt);
11337 case CQE_CODE_XRI_ABORTED:
11338 /* Process the WQ XRI abort event */
11339 phba->last_completion_time = jiffies;
11340 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
11341 (struct sli4_wcqe_xri_aborted *)&cqevt);
11343 case CQE_CODE_RECEIVE:
11344 case CQE_CODE_RECEIVE_V1:
11345 /* Process the RQ event */
11346 phba->last_completion_time = jiffies;
11347 workposted = lpfc_sli4_sp_handle_rcqe(phba,
11348 (struct lpfc_rcqe *)&cqevt);
11351 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11352 "0388 Not a valid WCQE code: x%x\n",
11353 bf_get(lpfc_cqe_code, &cqevt));
11360 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
11361 * @phba: Pointer to HBA context object.
11362 * @eqe: Pointer to fast-path event queue entry.
11364 * This routine process a event queue entry from the slow-path event queue.
11365 * It will check the MajorCode and MinorCode to determine this is for a
11366 * completion event on a completion queue, if not, an error shall be logged
11367 * and just return. Otherwise, it will get to the corresponding completion
11368 * queue and process all the entries on that completion queue, rearm the
11369 * completion queue, and then return.
11373 lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe)
11375 struct lpfc_queue *cq = NULL, *childq, *speq;
11376 struct lpfc_cqe *cqe;
11377 bool workposted = false;
11381 if (bf_get_le32(lpfc_eqe_major_code, eqe) != 0) {
11382 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11383 "0359 Not a valid slow-path completion "
11384 "event: majorcode=x%x, minorcode=x%x\n",
11385 bf_get_le32(lpfc_eqe_major_code, eqe),
11386 bf_get_le32(lpfc_eqe_minor_code, eqe));
11390 /* Get the reference to the corresponding CQ */
11391 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
11393 /* Search for completion queue pointer matching this cqid */
11394 speq = phba->sli4_hba.sp_eq;
11395 /* sanity check on queue memory */
11396 if (unlikely(!speq))
11398 list_for_each_entry(childq, &speq->child_list, list) {
11399 if (childq->queue_id == cqid) {
11404 if (unlikely(!cq)) {
11405 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
11406 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11407 "0365 Slow-path CQ identifier "
11408 "(%d) does not exist\n", cqid);
11412 /* Process all the entries to the CQ */
11413 switch (cq->type) {
11415 while ((cqe = lpfc_sli4_cq_get(cq))) {
11416 workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe);
11417 if (!(++ecount % cq->entry_repost))
11418 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
11422 while ((cqe = lpfc_sli4_cq_get(cq))) {
11423 if (cq->subtype == LPFC_FCP)
11424 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq,
11427 workposted |= lpfc_sli4_sp_handle_cqe(phba, cq,
11429 if (!(++ecount % cq->entry_repost))
11430 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
11434 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11435 "0370 Invalid completion queue type (%d)\n",
11440 /* Catch the no cq entry condition, log an error */
11441 if (unlikely(ecount == 0))
11442 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11443 "0371 No entry from the CQ: identifier "
11444 "(x%x), type (%d)\n", cq->queue_id, cq->type);
11446 /* In any case, flash and re-arm the RCQ */
11447 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
11449 /* wake up worker thread if there are works to be done */
11451 lpfc_worker_wake_up(phba);
11455 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
11456 * @eqe: Pointer to fast-path completion queue entry.
11458 * This routine process a fast-path work queue completion entry from fast-path
11459 * event queue for FCP command response completion.
11462 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba,
11463 struct lpfc_wcqe_complete *wcqe)
11465 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_FCP_RING];
11466 struct lpfc_iocbq *cmdiocbq;
11467 struct lpfc_iocbq irspiocbq;
11468 unsigned long iflags;
11470 spin_lock_irqsave(&phba->hbalock, iflags);
11471 pring->stats.iocb_event++;
11472 spin_unlock_irqrestore(&phba->hbalock, iflags);
11474 /* Check for response status */
11475 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
11476 /* If resource errors reported from HBA, reduce queue
11477 * depth of the SCSI device.
11479 if ((bf_get(lpfc_wcqe_c_status, wcqe) ==
11480 IOSTAT_LOCAL_REJECT) &&
11481 (wcqe->parameter == IOERR_NO_RESOURCES)) {
11482 phba->lpfc_rampdown_queue_depth(phba);
11484 /* Log the error status */
11485 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11486 "0373 FCP complete error: status=x%x, "
11487 "hw_status=x%x, total_data_specified=%d, "
11488 "parameter=x%x, word3=x%x\n",
11489 bf_get(lpfc_wcqe_c_status, wcqe),
11490 bf_get(lpfc_wcqe_c_hw_status, wcqe),
11491 wcqe->total_data_placed, wcqe->parameter,
11495 /* Look up the FCP command IOCB and create pseudo response IOCB */
11496 spin_lock_irqsave(&phba->hbalock, iflags);
11497 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
11498 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11499 spin_unlock_irqrestore(&phba->hbalock, iflags);
11500 if (unlikely(!cmdiocbq)) {
11501 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11502 "0374 FCP complete with no corresponding "
11503 "cmdiocb: iotag (%d)\n",
11504 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11507 if (unlikely(!cmdiocbq->iocb_cmpl)) {
11508 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11509 "0375 FCP cmdiocb not callback function "
11511 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11515 /* Fake the irspiocb and copy necessary response information */
11516 lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
11518 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
11519 spin_lock_irqsave(&phba->hbalock, iflags);
11520 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
11521 spin_unlock_irqrestore(&phba->hbalock, iflags);
11524 /* Pass the cmd_iocb and the rsp state to the upper layer */
11525 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
11529 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
11530 * @phba: Pointer to HBA context object.
11531 * @cq: Pointer to completion queue.
11532 * @wcqe: Pointer to work-queue completion queue entry.
11534 * This routine handles an fast-path WQ entry comsumed event by invoking the
11535 * proper WQ release routine to the slow-path WQ.
11538 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11539 struct lpfc_wcqe_release *wcqe)
11541 struct lpfc_queue *childwq;
11542 bool wqid_matched = false;
11545 /* Check for fast-path FCP work queue release */
11546 fcp_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
11547 list_for_each_entry(childwq, &cq->child_list, list) {
11548 if (childwq->queue_id == fcp_wqid) {
11549 lpfc_sli4_wq_release(childwq,
11550 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
11551 wqid_matched = true;
11555 /* Report warning log message if no match found */
11556 if (wqid_matched != true)
11557 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11558 "2580 Fast-path wqe consume event carries "
11559 "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid);
11563 * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry
11564 * @cq: Pointer to the completion queue.
11565 * @eqe: Pointer to fast-path completion queue entry.
11567 * This routine process a fast-path work queue completion entry from fast-path
11568 * event queue for FCP command response completion.
11571 lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11572 struct lpfc_cqe *cqe)
11574 struct lpfc_wcqe_release wcqe;
11575 bool workposted = false;
11577 /* Copy the work queue CQE and convert endian order if needed */
11578 lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
11580 /* Check and process for different type of WCQE and dispatch */
11581 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
11582 case CQE_CODE_COMPL_WQE:
11583 /* Process the WQ complete event */
11584 phba->last_completion_time = jiffies;
11585 lpfc_sli4_fp_handle_fcp_wcqe(phba,
11586 (struct lpfc_wcqe_complete *)&wcqe);
11588 case CQE_CODE_RELEASE_WQE:
11589 /* Process the WQ release event */
11590 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
11591 (struct lpfc_wcqe_release *)&wcqe);
11593 case CQE_CODE_XRI_ABORTED:
11594 /* Process the WQ XRI abort event */
11595 phba->last_completion_time = jiffies;
11596 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
11597 (struct sli4_wcqe_xri_aborted *)&wcqe);
11600 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11601 "0144 Not a valid WCQE code: x%x\n",
11602 bf_get(lpfc_wcqe_c_code, &wcqe));
11609 * lpfc_sli4_fp_handle_eqe - Process a fast-path event queue entry
11610 * @phba: Pointer to HBA context object.
11611 * @eqe: Pointer to fast-path event queue entry.
11613 * This routine process a event queue entry from the fast-path event queue.
11614 * It will check the MajorCode and MinorCode to determine this is for a
11615 * completion event on a completion queue, if not, an error shall be logged
11616 * and just return. Otherwise, it will get to the corresponding completion
11617 * queue and process all the entries on the completion queue, rearm the
11618 * completion queue, and then return.
11621 lpfc_sli4_fp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
11622 uint32_t fcp_cqidx)
11624 struct lpfc_queue *cq;
11625 struct lpfc_cqe *cqe;
11626 bool workposted = false;
11630 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
11631 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11632 "0366 Not a valid fast-path completion "
11633 "event: majorcode=x%x, minorcode=x%x\n",
11634 bf_get_le32(lpfc_eqe_major_code, eqe),
11635 bf_get_le32(lpfc_eqe_minor_code, eqe));
11639 if (unlikely(!phba->sli4_hba.fcp_cq)) {
11640 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11641 "3146 Fast-path completion queues "
11642 "does not exist\n");
11645 cq = phba->sli4_hba.fcp_cq[fcp_cqidx];
11646 if (unlikely(!cq)) {
11647 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
11648 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11649 "0367 Fast-path completion queue "
11650 "(%d) does not exist\n", fcp_cqidx);
11654 /* Get the reference to the corresponding CQ */
11655 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
11656 if (unlikely(cqid != cq->queue_id)) {
11657 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11658 "0368 Miss-matched fast-path completion "
11659 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
11660 cqid, cq->queue_id);
11664 /* Process all the entries to the CQ */
11665 while ((cqe = lpfc_sli4_cq_get(cq))) {
11666 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe);
11667 if (!(++ecount % cq->entry_repost))
11668 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
11671 /* Catch the no cq entry condition */
11672 if (unlikely(ecount == 0))
11673 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11674 "0369 No entry from fast-path completion "
11675 "queue fcpcqid=%d\n", cq->queue_id);
11677 /* In any case, flash and re-arm the CQ */
11678 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
11680 /* wake up worker thread if there are works to be done */
11682 lpfc_worker_wake_up(phba);
11686 lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
11688 struct lpfc_eqe *eqe;
11690 /* walk all the EQ entries and drop on the floor */
11691 while ((eqe = lpfc_sli4_eq_get(eq)))
11694 /* Clear and re-arm the EQ */
11695 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
11699 * lpfc_sli4_sp_intr_handler - Slow-path interrupt handler to SLI-4 device
11700 * @irq: Interrupt number.
11701 * @dev_id: The device context pointer.
11703 * This function is directly called from the PCI layer as an interrupt
11704 * service routine when device with SLI-4 interface spec is enabled with
11705 * MSI-X multi-message interrupt mode and there are slow-path events in
11706 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
11707 * interrupt mode, this function is called as part of the device-level
11708 * interrupt handler. When the PCI slot is in error recovery or the HBA is
11709 * undergoing initialization, the interrupt handler will not process the
11710 * interrupt. The link attention and ELS ring attention events are handled
11711 * by the worker thread. The interrupt handler signals the worker thread
11712 * and returns for these events. This function is called without any lock
11713 * held. It gets the hbalock to access and update SLI data structures.
11715 * This function returns IRQ_HANDLED when interrupt is handled else it
11716 * returns IRQ_NONE.
11719 lpfc_sli4_sp_intr_handler(int irq, void *dev_id)
11721 struct lpfc_hba *phba;
11722 struct lpfc_queue *speq;
11723 struct lpfc_eqe *eqe;
11724 unsigned long iflag;
11728 * Get the driver's phba structure from the dev_id
11730 phba = (struct lpfc_hba *)dev_id;
11732 if (unlikely(!phba))
11735 /* Get to the EQ struct associated with this vector */
11736 speq = phba->sli4_hba.sp_eq;
11737 if (unlikely(!speq))
11740 /* Check device state for handling interrupt */
11741 if (unlikely(lpfc_intr_state_check(phba))) {
11742 /* Check again for link_state with lock held */
11743 spin_lock_irqsave(&phba->hbalock, iflag);
11744 if (phba->link_state < LPFC_LINK_DOWN)
11745 /* Flush, clear interrupt, and rearm the EQ */
11746 lpfc_sli4_eq_flush(phba, speq);
11747 spin_unlock_irqrestore(&phba->hbalock, iflag);
11752 * Process all the event on FCP slow-path EQ
11754 while ((eqe = lpfc_sli4_eq_get(speq))) {
11755 lpfc_sli4_sp_handle_eqe(phba, eqe);
11756 if (!(++ecount % speq->entry_repost))
11757 lpfc_sli4_eq_release(speq, LPFC_QUEUE_NOARM);
11760 /* Always clear and re-arm the slow-path EQ */
11761 lpfc_sli4_eq_release(speq, LPFC_QUEUE_REARM);
11763 /* Catch the no cq entry condition */
11764 if (unlikely(ecount == 0)) {
11765 if (phba->intr_type == MSIX)
11766 /* MSI-X treated interrupt served as no EQ share INT */
11767 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11768 "0357 MSI-X interrupt with no EQE\n");
11770 /* Non MSI-X treated on interrupt as EQ share INT */
11774 return IRQ_HANDLED;
11775 } /* lpfc_sli4_sp_intr_handler */
11778 * lpfc_sli4_fp_intr_handler - Fast-path interrupt handler to SLI-4 device
11779 * @irq: Interrupt number.
11780 * @dev_id: The device context pointer.
11782 * This function is directly called from the PCI layer as an interrupt
11783 * service routine when device with SLI-4 interface spec is enabled with
11784 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
11785 * ring event in the HBA. However, when the device is enabled with either
11786 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
11787 * device-level interrupt handler. When the PCI slot is in error recovery
11788 * or the HBA is undergoing initialization, the interrupt handler will not
11789 * process the interrupt. The SCSI FCP fast-path ring event are handled in
11790 * the intrrupt context. This function is called without any lock held.
11791 * It gets the hbalock to access and update SLI data structures. Note that,
11792 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
11793 * equal to that of FCP CQ index.
11795 * This function returns IRQ_HANDLED when interrupt is handled else it
11796 * returns IRQ_NONE.
11799 lpfc_sli4_fp_intr_handler(int irq, void *dev_id)
11801 struct lpfc_hba *phba;
11802 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
11803 struct lpfc_queue *fpeq;
11804 struct lpfc_eqe *eqe;
11805 unsigned long iflag;
11807 uint32_t fcp_eqidx;
11809 /* Get the driver's phba structure from the dev_id */
11810 fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id;
11811 phba = fcp_eq_hdl->phba;
11812 fcp_eqidx = fcp_eq_hdl->idx;
11814 if (unlikely(!phba))
11816 if (unlikely(!phba->sli4_hba.fp_eq))
11819 /* Get to the EQ struct associated with this vector */
11820 fpeq = phba->sli4_hba.fp_eq[fcp_eqidx];
11821 if (unlikely(!fpeq))
11824 /* Check device state for handling interrupt */
11825 if (unlikely(lpfc_intr_state_check(phba))) {
11826 /* Check again for link_state with lock held */
11827 spin_lock_irqsave(&phba->hbalock, iflag);
11828 if (phba->link_state < LPFC_LINK_DOWN)
11829 /* Flush, clear interrupt, and rearm the EQ */
11830 lpfc_sli4_eq_flush(phba, fpeq);
11831 spin_unlock_irqrestore(&phba->hbalock, iflag);
11836 * Process all the event on FCP fast-path EQ
11838 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
11839 lpfc_sli4_fp_handle_eqe(phba, eqe, fcp_eqidx);
11840 if (!(++ecount % fpeq->entry_repost))
11841 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM);
11844 /* Always clear and re-arm the fast-path EQ */
11845 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
11847 if (unlikely(ecount == 0)) {
11848 if (phba->intr_type == MSIX)
11849 /* MSI-X treated interrupt served as no EQ share INT */
11850 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11851 "0358 MSI-X interrupt with no EQE\n");
11853 /* Non MSI-X treated on interrupt as EQ share INT */
11857 return IRQ_HANDLED;
11858 } /* lpfc_sli4_fp_intr_handler */
11861 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
11862 * @irq: Interrupt number.
11863 * @dev_id: The device context pointer.
11865 * This function is the device-level interrupt handler to device with SLI-4
11866 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
11867 * interrupt mode is enabled and there is an event in the HBA which requires
11868 * driver attention. This function invokes the slow-path interrupt attention
11869 * handling function and fast-path interrupt attention handling function in
11870 * turn to process the relevant HBA attention events. This function is called
11871 * without any lock held. It gets the hbalock to access and update SLI data
11874 * This function returns IRQ_HANDLED when interrupt is handled, else it
11875 * returns IRQ_NONE.
11878 lpfc_sli4_intr_handler(int irq, void *dev_id)
11880 struct lpfc_hba *phba;
11881 irqreturn_t sp_irq_rc, fp_irq_rc;
11882 bool fp_handled = false;
11883 uint32_t fcp_eqidx;
11885 /* Get the driver's phba structure from the dev_id */
11886 phba = (struct lpfc_hba *)dev_id;
11888 if (unlikely(!phba))
11892 * Invokes slow-path host attention interrupt handling as appropriate.
11894 sp_irq_rc = lpfc_sli4_sp_intr_handler(irq, dev_id);
11897 * Invoke fast-path host attention interrupt handling as appropriate.
11899 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
11900 fp_irq_rc = lpfc_sli4_fp_intr_handler(irq,
11901 &phba->sli4_hba.fcp_eq_hdl[fcp_eqidx]);
11902 if (fp_irq_rc == IRQ_HANDLED)
11903 fp_handled |= true;
11906 return (fp_handled == true) ? IRQ_HANDLED : sp_irq_rc;
11907 } /* lpfc_sli4_intr_handler */
11910 * lpfc_sli4_queue_free - free a queue structure and associated memory
11911 * @queue: The queue structure to free.
11913 * This function frees a queue structure and the DMAable memory used for
11914 * the host resident queue. This function must be called after destroying the
11915 * queue on the HBA.
11918 lpfc_sli4_queue_free(struct lpfc_queue *queue)
11920 struct lpfc_dmabuf *dmabuf;
11925 while (!list_empty(&queue->page_list)) {
11926 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
11928 dma_free_coherent(&queue->phba->pcidev->dev, SLI4_PAGE_SIZE,
11929 dmabuf->virt, dmabuf->phys);
11937 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
11938 * @phba: The HBA that this queue is being created on.
11939 * @entry_size: The size of each queue entry for this queue.
11940 * @entry count: The number of entries that this queue will handle.
11942 * This function allocates a queue structure and the DMAable memory used for
11943 * the host resident queue. This function must be called before creating the
11944 * queue on the HBA.
11946 struct lpfc_queue *
11947 lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size,
11948 uint32_t entry_count)
11950 struct lpfc_queue *queue;
11951 struct lpfc_dmabuf *dmabuf;
11952 int x, total_qe_count;
11954 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
11956 if (!phba->sli4_hba.pc_sli4_params.supported)
11957 hw_page_size = SLI4_PAGE_SIZE;
11959 queue = kzalloc(sizeof(struct lpfc_queue) +
11960 (sizeof(union sli4_qe) * entry_count), GFP_KERNEL);
11963 queue->page_count = (ALIGN(entry_size * entry_count,
11964 hw_page_size))/hw_page_size;
11965 INIT_LIST_HEAD(&queue->list);
11966 INIT_LIST_HEAD(&queue->page_list);
11967 INIT_LIST_HEAD(&queue->child_list);
11968 for (x = 0, total_qe_count = 0; x < queue->page_count; x++) {
11969 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
11972 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
11973 hw_page_size, &dmabuf->phys,
11975 if (!dmabuf->virt) {
11979 memset(dmabuf->virt, 0, hw_page_size);
11980 dmabuf->buffer_tag = x;
11981 list_add_tail(&dmabuf->list, &queue->page_list);
11982 /* initialize queue's entry array */
11983 dma_pointer = dmabuf->virt;
11984 for (; total_qe_count < entry_count &&
11985 dma_pointer < (hw_page_size + dmabuf->virt);
11986 total_qe_count++, dma_pointer += entry_size) {
11987 queue->qe[total_qe_count].address = dma_pointer;
11990 queue->entry_size = entry_size;
11991 queue->entry_count = entry_count;
11994 * entry_repost is calculated based on the number of entries in the
11995 * queue. This works out except for RQs. If buffers are NOT initially
11996 * posted for every RQE, entry_repost should be adjusted accordingly.
11998 queue->entry_repost = (entry_count >> 3);
11999 if (queue->entry_repost < LPFC_QUEUE_MIN_REPOST)
12000 queue->entry_repost = LPFC_QUEUE_MIN_REPOST;
12001 queue->phba = phba;
12005 lpfc_sli4_queue_free(queue);
12010 * lpfc_eq_create - Create an Event Queue on the HBA
12011 * @phba: HBA structure that indicates port to create a queue on.
12012 * @eq: The queue structure to use to create the event queue.
12013 * @imax: The maximum interrupt per second limit.
12015 * This function creates an event queue, as detailed in @eq, on a port,
12016 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
12018 * The @phba struct is used to send mailbox command to HBA. The @eq struct
12019 * is used to get the entry count and entry size that are necessary to
12020 * determine the number of pages to allocate and use for this queue. This
12021 * function will send the EQ_CREATE mailbox command to the HBA to setup the
12022 * event queue. This function is asynchronous and will wait for the mailbox
12023 * command to finish before continuing.
12025 * On success this function will return a zero. If unable to allocate enough
12026 * memory this function will return -ENOMEM. If the queue create mailbox command
12027 * fails this function will return -ENXIO.
12030 lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint16_t imax)
12032 struct lpfc_mbx_eq_create *eq_create;
12033 LPFC_MBOXQ_t *mbox;
12034 int rc, length, status = 0;
12035 struct lpfc_dmabuf *dmabuf;
12036 uint32_t shdr_status, shdr_add_status;
12037 union lpfc_sli4_cfg_shdr *shdr;
12039 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12041 /* sanity check on queue memory */
12044 if (!phba->sli4_hba.pc_sli4_params.supported)
12045 hw_page_size = SLI4_PAGE_SIZE;
12047 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12050 length = (sizeof(struct lpfc_mbx_eq_create) -
12051 sizeof(struct lpfc_sli4_cfg_mhdr));
12052 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12053 LPFC_MBOX_OPCODE_EQ_CREATE,
12054 length, LPFC_SLI4_MBX_EMBED);
12055 eq_create = &mbox->u.mqe.un.eq_create;
12056 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
12058 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
12060 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
12061 /* Calculate delay multiper from maximum interrupt per second */
12062 dmult = LPFC_DMULT_CONST/imax - 1;
12063 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
12065 switch (eq->entry_count) {
12067 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12068 "0360 Unsupported EQ count. (%d)\n",
12070 if (eq->entry_count < 256)
12072 /* otherwise default to smallest count (drop through) */
12074 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12078 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12082 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12086 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12090 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12094 list_for_each_entry(dmabuf, &eq->page_list, list) {
12095 memset(dmabuf->virt, 0, hw_page_size);
12096 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
12097 putPaddrLow(dmabuf->phys);
12098 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
12099 putPaddrHigh(dmabuf->phys);
12101 mbox->vport = phba->pport;
12102 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12103 mbox->context1 = NULL;
12104 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12105 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
12106 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12107 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12108 if (shdr_status || shdr_add_status || rc) {
12109 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12110 "2500 EQ_CREATE mailbox failed with "
12111 "status x%x add_status x%x, mbx status x%x\n",
12112 shdr_status, shdr_add_status, rc);
12115 eq->type = LPFC_EQ;
12116 eq->subtype = LPFC_NONE;
12117 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
12118 if (eq->queue_id == 0xFFFF)
12120 eq->host_index = 0;
12123 mempool_free(mbox, phba->mbox_mem_pool);
12128 * lpfc_cq_create - Create a Completion Queue on the HBA
12129 * @phba: HBA structure that indicates port to create a queue on.
12130 * @cq: The queue structure to use to create the completion queue.
12131 * @eq: The event queue to bind this completion queue to.
12133 * This function creates a completion queue, as detailed in @wq, on a port,
12134 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
12136 * The @phba struct is used to send mailbox command to HBA. The @cq struct
12137 * is used to get the entry count and entry size that are necessary to
12138 * determine the number of pages to allocate and use for this queue. The @eq
12139 * is used to indicate which event queue to bind this completion queue to. This
12140 * function will send the CQ_CREATE mailbox command to the HBA to setup the
12141 * completion queue. This function is asynchronous and will wait for the mailbox
12142 * command to finish before continuing.
12144 * On success this function will return a zero. If unable to allocate enough
12145 * memory this function will return -ENOMEM. If the queue create mailbox command
12146 * fails this function will return -ENXIO.
12149 lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
12150 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
12152 struct lpfc_mbx_cq_create *cq_create;
12153 struct lpfc_dmabuf *dmabuf;
12154 LPFC_MBOXQ_t *mbox;
12155 int rc, length, status = 0;
12156 uint32_t shdr_status, shdr_add_status;
12157 union lpfc_sli4_cfg_shdr *shdr;
12158 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12160 /* sanity check on queue memory */
12163 if (!phba->sli4_hba.pc_sli4_params.supported)
12164 hw_page_size = SLI4_PAGE_SIZE;
12166 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12169 length = (sizeof(struct lpfc_mbx_cq_create) -
12170 sizeof(struct lpfc_sli4_cfg_mhdr));
12171 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12172 LPFC_MBOX_OPCODE_CQ_CREATE,
12173 length, LPFC_SLI4_MBX_EMBED);
12174 cq_create = &mbox->u.mqe.un.cq_create;
12175 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
12176 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
12178 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
12179 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
12180 bf_set(lpfc_mbox_hdr_version, &shdr->request,
12181 phba->sli4_hba.pc_sli4_params.cqv);
12182 if (phba->sli4_hba.pc_sli4_params.cqv == LPFC_Q_CREATE_VERSION_2) {
12183 /* FW only supports 1. Should be PAGE_SIZE/SLI4_PAGE_SIZE */
12184 bf_set(lpfc_mbx_cq_create_page_size, &cq_create->u.request, 1);
12185 bf_set(lpfc_cq_eq_id_2, &cq_create->u.request.context,
12188 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context,
12191 switch (cq->entry_count) {
12193 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12194 "0361 Unsupported CQ count. (%d)\n",
12196 if (cq->entry_count < 256)
12198 /* otherwise default to smallest count (drop through) */
12200 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
12204 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
12208 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
12212 list_for_each_entry(dmabuf, &cq->page_list, list) {
12213 memset(dmabuf->virt, 0, hw_page_size);
12214 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
12215 putPaddrLow(dmabuf->phys);
12216 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
12217 putPaddrHigh(dmabuf->phys);
12219 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12221 /* The IOCTL status is embedded in the mailbox subheader. */
12222 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12223 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12224 if (shdr_status || shdr_add_status || rc) {
12225 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12226 "2501 CQ_CREATE mailbox failed with "
12227 "status x%x add_status x%x, mbx status x%x\n",
12228 shdr_status, shdr_add_status, rc);
12232 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
12233 if (cq->queue_id == 0xFFFF) {
12237 /* link the cq onto the parent eq child list */
12238 list_add_tail(&cq->list, &eq->child_list);
12239 /* Set up completion queue's type and subtype */
12241 cq->subtype = subtype;
12242 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
12243 cq->assoc_qid = eq->queue_id;
12244 cq->host_index = 0;
12248 mempool_free(mbox, phba->mbox_mem_pool);
12253 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
12254 * @phba: HBA structure that indicates port to create a queue on.
12255 * @mq: The queue structure to use to create the mailbox queue.
12256 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
12257 * @cq: The completion queue to associate with this cq.
12259 * This function provides failback (fb) functionality when the
12260 * mq_create_ext fails on older FW generations. It's purpose is identical
12261 * to mq_create_ext otherwise.
12263 * This routine cannot fail as all attributes were previously accessed and
12264 * initialized in mq_create_ext.
12267 lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq,
12268 LPFC_MBOXQ_t *mbox, struct lpfc_queue *cq)
12270 struct lpfc_mbx_mq_create *mq_create;
12271 struct lpfc_dmabuf *dmabuf;
12274 length = (sizeof(struct lpfc_mbx_mq_create) -
12275 sizeof(struct lpfc_sli4_cfg_mhdr));
12276 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12277 LPFC_MBOX_OPCODE_MQ_CREATE,
12278 length, LPFC_SLI4_MBX_EMBED);
12279 mq_create = &mbox->u.mqe.un.mq_create;
12280 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
12282 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
12284 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
12285 switch (mq->entry_count) {
12287 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
12288 LPFC_MQ_RING_SIZE_16);
12291 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
12292 LPFC_MQ_RING_SIZE_32);
12295 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
12296 LPFC_MQ_RING_SIZE_64);
12299 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
12300 LPFC_MQ_RING_SIZE_128);
12303 list_for_each_entry(dmabuf, &mq->page_list, list) {
12304 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
12305 putPaddrLow(dmabuf->phys);
12306 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
12307 putPaddrHigh(dmabuf->phys);
12312 * lpfc_mq_create - Create a mailbox Queue on the HBA
12313 * @phba: HBA structure that indicates port to create a queue on.
12314 * @mq: The queue structure to use to create the mailbox queue.
12315 * @cq: The completion queue to associate with this cq.
12316 * @subtype: The queue's subtype.
12318 * This function creates a mailbox queue, as detailed in @mq, on a port,
12319 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
12321 * The @phba struct is used to send mailbox command to HBA. The @cq struct
12322 * is used to get the entry count and entry size that are necessary to
12323 * determine the number of pages to allocate and use for this queue. This
12324 * function will send the MQ_CREATE mailbox command to the HBA to setup the
12325 * mailbox queue. This function is asynchronous and will wait for the mailbox
12326 * command to finish before continuing.
12328 * On success this function will return a zero. If unable to allocate enough
12329 * memory this function will return -ENOMEM. If the queue create mailbox command
12330 * fails this function will return -ENXIO.
12333 lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
12334 struct lpfc_queue *cq, uint32_t subtype)
12336 struct lpfc_mbx_mq_create *mq_create;
12337 struct lpfc_mbx_mq_create_ext *mq_create_ext;
12338 struct lpfc_dmabuf *dmabuf;
12339 LPFC_MBOXQ_t *mbox;
12340 int rc, length, status = 0;
12341 uint32_t shdr_status, shdr_add_status;
12342 union lpfc_sli4_cfg_shdr *shdr;
12343 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12345 /* sanity check on queue memory */
12348 if (!phba->sli4_hba.pc_sli4_params.supported)
12349 hw_page_size = SLI4_PAGE_SIZE;
12351 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12354 length = (sizeof(struct lpfc_mbx_mq_create_ext) -
12355 sizeof(struct lpfc_sli4_cfg_mhdr));
12356 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12357 LPFC_MBOX_OPCODE_MQ_CREATE_EXT,
12358 length, LPFC_SLI4_MBX_EMBED);
12360 mq_create_ext = &mbox->u.mqe.un.mq_create_ext;
12361 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr;
12362 bf_set(lpfc_mbx_mq_create_ext_num_pages,
12363 &mq_create_ext->u.request, mq->page_count);
12364 bf_set(lpfc_mbx_mq_create_ext_async_evt_link,
12365 &mq_create_ext->u.request, 1);
12366 bf_set(lpfc_mbx_mq_create_ext_async_evt_fip,
12367 &mq_create_ext->u.request, 1);
12368 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5,
12369 &mq_create_ext->u.request, 1);
12370 bf_set(lpfc_mbx_mq_create_ext_async_evt_fc,
12371 &mq_create_ext->u.request, 1);
12372 bf_set(lpfc_mbx_mq_create_ext_async_evt_sli,
12373 &mq_create_ext->u.request, 1);
12374 bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1);
12375 bf_set(lpfc_mbox_hdr_version, &shdr->request,
12376 phba->sli4_hba.pc_sli4_params.mqv);
12377 if (phba->sli4_hba.pc_sli4_params.mqv == LPFC_Q_CREATE_VERSION_1)
12378 bf_set(lpfc_mbx_mq_create_ext_cq_id, &mq_create_ext->u.request,
12381 bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context,
12383 switch (mq->entry_count) {
12385 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12386 "0362 Unsupported MQ count. (%d)\n",
12388 if (mq->entry_count < 16)
12390 /* otherwise default to smallest count (drop through) */
12392 bf_set(lpfc_mq_context_ring_size,
12393 &mq_create_ext->u.request.context,
12394 LPFC_MQ_RING_SIZE_16);
12397 bf_set(lpfc_mq_context_ring_size,
12398 &mq_create_ext->u.request.context,
12399 LPFC_MQ_RING_SIZE_32);
12402 bf_set(lpfc_mq_context_ring_size,
12403 &mq_create_ext->u.request.context,
12404 LPFC_MQ_RING_SIZE_64);
12407 bf_set(lpfc_mq_context_ring_size,
12408 &mq_create_ext->u.request.context,
12409 LPFC_MQ_RING_SIZE_128);
12412 list_for_each_entry(dmabuf, &mq->page_list, list) {
12413 memset(dmabuf->virt, 0, hw_page_size);
12414 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_lo =
12415 putPaddrLow(dmabuf->phys);
12416 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_hi =
12417 putPaddrHigh(dmabuf->phys);
12419 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12420 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
12421 &mq_create_ext->u.response);
12422 if (rc != MBX_SUCCESS) {
12423 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12424 "2795 MQ_CREATE_EXT failed with "
12425 "status x%x. Failback to MQ_CREATE.\n",
12427 lpfc_mq_create_fb_init(phba, mq, mbox, cq);
12428 mq_create = &mbox->u.mqe.un.mq_create;
12429 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12430 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
12431 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
12432 &mq_create->u.response);
12435 /* The IOCTL status is embedded in the mailbox subheader. */
12436 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12437 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12438 if (shdr_status || shdr_add_status || rc) {
12439 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12440 "2502 MQ_CREATE mailbox failed with "
12441 "status x%x add_status x%x, mbx status x%x\n",
12442 shdr_status, shdr_add_status, rc);
12446 if (mq->queue_id == 0xFFFF) {
12450 mq->type = LPFC_MQ;
12451 mq->assoc_qid = cq->queue_id;
12452 mq->subtype = subtype;
12453 mq->host_index = 0;
12456 /* link the mq onto the parent cq child list */
12457 list_add_tail(&mq->list, &cq->child_list);
12459 mempool_free(mbox, phba->mbox_mem_pool);
12464 * lpfc_wq_create - Create a Work Queue on the HBA
12465 * @phba: HBA structure that indicates port to create a queue on.
12466 * @wq: The queue structure to use to create the work queue.
12467 * @cq: The completion queue to bind this work queue to.
12468 * @subtype: The subtype of the work queue indicating its functionality.
12470 * This function creates a work queue, as detailed in @wq, on a port, described
12471 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
12473 * The @phba struct is used to send mailbox command to HBA. The @wq struct
12474 * is used to get the entry count and entry size that are necessary to
12475 * determine the number of pages to allocate and use for this queue. The @cq
12476 * is used to indicate which completion queue to bind this work queue to. This
12477 * function will send the WQ_CREATE mailbox command to the HBA to setup the
12478 * work queue. This function is asynchronous and will wait for the mailbox
12479 * command to finish before continuing.
12481 * On success this function will return a zero. If unable to allocate enough
12482 * memory this function will return -ENOMEM. If the queue create mailbox command
12483 * fails this function will return -ENXIO.
12486 lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
12487 struct lpfc_queue *cq, uint32_t subtype)
12489 struct lpfc_mbx_wq_create *wq_create;
12490 struct lpfc_dmabuf *dmabuf;
12491 LPFC_MBOXQ_t *mbox;
12492 int rc, length, status = 0;
12493 uint32_t shdr_status, shdr_add_status;
12494 union lpfc_sli4_cfg_shdr *shdr;
12495 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12496 struct dma_address *page;
12498 /* sanity check on queue memory */
12501 if (!phba->sli4_hba.pc_sli4_params.supported)
12502 hw_page_size = SLI4_PAGE_SIZE;
12504 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12507 length = (sizeof(struct lpfc_mbx_wq_create) -
12508 sizeof(struct lpfc_sli4_cfg_mhdr));
12509 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
12510 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
12511 length, LPFC_SLI4_MBX_EMBED);
12512 wq_create = &mbox->u.mqe.un.wq_create;
12513 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
12514 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
12516 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
12518 bf_set(lpfc_mbox_hdr_version, &shdr->request,
12519 phba->sli4_hba.pc_sli4_params.wqv);
12520 if (phba->sli4_hba.pc_sli4_params.wqv == LPFC_Q_CREATE_VERSION_1) {
12521 bf_set(lpfc_mbx_wq_create_wqe_count, &wq_create->u.request_1,
12523 switch (wq->entry_size) {
12526 bf_set(lpfc_mbx_wq_create_wqe_size,
12527 &wq_create->u.request_1,
12528 LPFC_WQ_WQE_SIZE_64);
12531 bf_set(lpfc_mbx_wq_create_wqe_size,
12532 &wq_create->u.request_1,
12533 LPFC_WQ_WQE_SIZE_128);
12536 bf_set(lpfc_mbx_wq_create_page_size, &wq_create->u.request_1,
12537 (PAGE_SIZE/SLI4_PAGE_SIZE));
12538 page = wq_create->u.request_1.page;
12540 page = wq_create->u.request.page;
12542 list_for_each_entry(dmabuf, &wq->page_list, list) {
12543 memset(dmabuf->virt, 0, hw_page_size);
12544 page[dmabuf->buffer_tag].addr_lo = putPaddrLow(dmabuf->phys);
12545 page[dmabuf->buffer_tag].addr_hi = putPaddrHigh(dmabuf->phys);
12547 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12548 /* The IOCTL status is embedded in the mailbox subheader. */
12549 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12550 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12551 if (shdr_status || shdr_add_status || rc) {
12552 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12553 "2503 WQ_CREATE mailbox failed with "
12554 "status x%x add_status x%x, mbx status x%x\n",
12555 shdr_status, shdr_add_status, rc);
12559 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response);
12560 if (wq->queue_id == 0xFFFF) {
12564 wq->type = LPFC_WQ;
12565 wq->assoc_qid = cq->queue_id;
12566 wq->subtype = subtype;
12567 wq->host_index = 0;
12569 wq->entry_repost = LPFC_RELEASE_NOTIFICATION_INTERVAL;
12571 /* link the wq onto the parent cq child list */
12572 list_add_tail(&wq->list, &cq->child_list);
12574 mempool_free(mbox, phba->mbox_mem_pool);
12579 * lpfc_rq_adjust_repost - Adjust entry_repost for an RQ
12580 * @phba: HBA structure that indicates port to create a queue on.
12581 * @rq: The queue structure to use for the receive queue.
12582 * @qno: The associated HBQ number
12585 * For SLI4 we need to adjust the RQ repost value based on
12586 * the number of buffers that are initially posted to the RQ.
12589 lpfc_rq_adjust_repost(struct lpfc_hba *phba, struct lpfc_queue *rq, int qno)
12593 /* sanity check on queue memory */
12596 cnt = lpfc_hbq_defs[qno]->entry_count;
12598 /* Recalc repost for RQs based on buffers initially posted */
12600 if (cnt < LPFC_QUEUE_MIN_REPOST)
12601 cnt = LPFC_QUEUE_MIN_REPOST;
12603 rq->entry_repost = cnt;
12607 * lpfc_rq_create - Create a Receive Queue on the HBA
12608 * @phba: HBA structure that indicates port to create a queue on.
12609 * @hrq: The queue structure to use to create the header receive queue.
12610 * @drq: The queue structure to use to create the data receive queue.
12611 * @cq: The completion queue to bind this work queue to.
12613 * This function creates a receive buffer queue pair , as detailed in @hrq and
12614 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
12617 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
12618 * struct is used to get the entry count that is necessary to determine the
12619 * number of pages to use for this queue. The @cq is used to indicate which
12620 * completion queue to bind received buffers that are posted to these queues to.
12621 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
12622 * receive queue pair. This function is asynchronous and will wait for the
12623 * mailbox command to finish before continuing.
12625 * On success this function will return a zero. If unable to allocate enough
12626 * memory this function will return -ENOMEM. If the queue create mailbox command
12627 * fails this function will return -ENXIO.
12630 lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
12631 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
12633 struct lpfc_mbx_rq_create *rq_create;
12634 struct lpfc_dmabuf *dmabuf;
12635 LPFC_MBOXQ_t *mbox;
12636 int rc, length, status = 0;
12637 uint32_t shdr_status, shdr_add_status;
12638 union lpfc_sli4_cfg_shdr *shdr;
12639 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12641 /* sanity check on queue memory */
12642 if (!hrq || !drq || !cq)
12644 if (!phba->sli4_hba.pc_sli4_params.supported)
12645 hw_page_size = SLI4_PAGE_SIZE;
12647 if (hrq->entry_count != drq->entry_count)
12649 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12652 length = (sizeof(struct lpfc_mbx_rq_create) -
12653 sizeof(struct lpfc_sli4_cfg_mhdr));
12654 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
12655 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
12656 length, LPFC_SLI4_MBX_EMBED);
12657 rq_create = &mbox->u.mqe.un.rq_create;
12658 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
12659 bf_set(lpfc_mbox_hdr_version, &shdr->request,
12660 phba->sli4_hba.pc_sli4_params.rqv);
12661 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
12662 bf_set(lpfc_rq_context_rqe_count_1,
12663 &rq_create->u.request.context,
12665 rq_create->u.request.context.buffer_size = LPFC_HDR_BUF_SIZE;
12666 bf_set(lpfc_rq_context_rqe_size,
12667 &rq_create->u.request.context,
12669 bf_set(lpfc_rq_context_page_size,
12670 &rq_create->u.request.context,
12671 (PAGE_SIZE/SLI4_PAGE_SIZE));
12673 switch (hrq->entry_count) {
12675 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12676 "2535 Unsupported RQ count. (%d)\n",
12678 if (hrq->entry_count < 512)
12680 /* otherwise default to smallest count (drop through) */
12682 bf_set(lpfc_rq_context_rqe_count,
12683 &rq_create->u.request.context,
12684 LPFC_RQ_RING_SIZE_512);
12687 bf_set(lpfc_rq_context_rqe_count,
12688 &rq_create->u.request.context,
12689 LPFC_RQ_RING_SIZE_1024);
12692 bf_set(lpfc_rq_context_rqe_count,
12693 &rq_create->u.request.context,
12694 LPFC_RQ_RING_SIZE_2048);
12697 bf_set(lpfc_rq_context_rqe_count,
12698 &rq_create->u.request.context,
12699 LPFC_RQ_RING_SIZE_4096);
12702 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
12703 LPFC_HDR_BUF_SIZE);
12705 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
12707 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
12709 list_for_each_entry(dmabuf, &hrq->page_list, list) {
12710 memset(dmabuf->virt, 0, hw_page_size);
12711 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
12712 putPaddrLow(dmabuf->phys);
12713 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
12714 putPaddrHigh(dmabuf->phys);
12716 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12717 /* The IOCTL status is embedded in the mailbox subheader. */
12718 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12719 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12720 if (shdr_status || shdr_add_status || rc) {
12721 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12722 "2504 RQ_CREATE mailbox failed with "
12723 "status x%x add_status x%x, mbx status x%x\n",
12724 shdr_status, shdr_add_status, rc);
12728 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
12729 if (hrq->queue_id == 0xFFFF) {
12733 hrq->type = LPFC_HRQ;
12734 hrq->assoc_qid = cq->queue_id;
12735 hrq->subtype = subtype;
12736 hrq->host_index = 0;
12737 hrq->hba_index = 0;
12739 /* now create the data queue */
12740 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
12741 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
12742 length, LPFC_SLI4_MBX_EMBED);
12743 bf_set(lpfc_mbox_hdr_version, &shdr->request,
12744 phba->sli4_hba.pc_sli4_params.rqv);
12745 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
12746 bf_set(lpfc_rq_context_rqe_count_1,
12747 &rq_create->u.request.context, hrq->entry_count);
12748 rq_create->u.request.context.buffer_size = LPFC_DATA_BUF_SIZE;
12749 bf_set(lpfc_rq_context_rqe_size, &rq_create->u.request.context,
12751 bf_set(lpfc_rq_context_page_size, &rq_create->u.request.context,
12752 (PAGE_SIZE/SLI4_PAGE_SIZE));
12754 switch (drq->entry_count) {
12756 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12757 "2536 Unsupported RQ count. (%d)\n",
12759 if (drq->entry_count < 512)
12761 /* otherwise default to smallest count (drop through) */
12763 bf_set(lpfc_rq_context_rqe_count,
12764 &rq_create->u.request.context,
12765 LPFC_RQ_RING_SIZE_512);
12768 bf_set(lpfc_rq_context_rqe_count,
12769 &rq_create->u.request.context,
12770 LPFC_RQ_RING_SIZE_1024);
12773 bf_set(lpfc_rq_context_rqe_count,
12774 &rq_create->u.request.context,
12775 LPFC_RQ_RING_SIZE_2048);
12778 bf_set(lpfc_rq_context_rqe_count,
12779 &rq_create->u.request.context,
12780 LPFC_RQ_RING_SIZE_4096);
12783 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
12784 LPFC_DATA_BUF_SIZE);
12786 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
12788 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
12790 list_for_each_entry(dmabuf, &drq->page_list, list) {
12791 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
12792 putPaddrLow(dmabuf->phys);
12793 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
12794 putPaddrHigh(dmabuf->phys);
12796 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12797 /* The IOCTL status is embedded in the mailbox subheader. */
12798 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
12799 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12800 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12801 if (shdr_status || shdr_add_status || rc) {
12805 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
12806 if (drq->queue_id == 0xFFFF) {
12810 drq->type = LPFC_DRQ;
12811 drq->assoc_qid = cq->queue_id;
12812 drq->subtype = subtype;
12813 drq->host_index = 0;
12814 drq->hba_index = 0;
12816 /* link the header and data RQs onto the parent cq child list */
12817 list_add_tail(&hrq->list, &cq->child_list);
12818 list_add_tail(&drq->list, &cq->child_list);
12821 mempool_free(mbox, phba->mbox_mem_pool);
12826 * lpfc_eq_destroy - Destroy an event Queue on the HBA
12827 * @eq: The queue structure associated with the queue to destroy.
12829 * This function destroys a queue, as detailed in @eq by sending an mailbox
12830 * command, specific to the type of queue, to the HBA.
12832 * The @eq struct is used to get the queue ID of the queue to destroy.
12834 * On success this function will return a zero. If the queue destroy mailbox
12835 * command fails this function will return -ENXIO.
12838 lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
12840 LPFC_MBOXQ_t *mbox;
12841 int rc, length, status = 0;
12842 uint32_t shdr_status, shdr_add_status;
12843 union lpfc_sli4_cfg_shdr *shdr;
12845 /* sanity check on queue memory */
12848 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
12851 length = (sizeof(struct lpfc_mbx_eq_destroy) -
12852 sizeof(struct lpfc_sli4_cfg_mhdr));
12853 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12854 LPFC_MBOX_OPCODE_EQ_DESTROY,
12855 length, LPFC_SLI4_MBX_EMBED);
12856 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
12858 mbox->vport = eq->phba->pport;
12859 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12861 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
12862 /* The IOCTL status is embedded in the mailbox subheader. */
12863 shdr = (union lpfc_sli4_cfg_shdr *)
12864 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
12865 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12866 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12867 if (shdr_status || shdr_add_status || rc) {
12868 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12869 "2505 EQ_DESTROY mailbox failed with "
12870 "status x%x add_status x%x, mbx status x%x\n",
12871 shdr_status, shdr_add_status, rc);
12875 /* Remove eq from any list */
12876 list_del_init(&eq->list);
12877 mempool_free(mbox, eq->phba->mbox_mem_pool);
12882 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
12883 * @cq: The queue structure associated with the queue to destroy.
12885 * This function destroys a queue, as detailed in @cq by sending an mailbox
12886 * command, specific to the type of queue, to the HBA.
12888 * The @cq struct is used to get the queue ID of the queue to destroy.
12890 * On success this function will return a zero. If the queue destroy mailbox
12891 * command fails this function will return -ENXIO.
12894 lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
12896 LPFC_MBOXQ_t *mbox;
12897 int rc, length, status = 0;
12898 uint32_t shdr_status, shdr_add_status;
12899 union lpfc_sli4_cfg_shdr *shdr;
12901 /* sanity check on queue memory */
12904 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
12907 length = (sizeof(struct lpfc_mbx_cq_destroy) -
12908 sizeof(struct lpfc_sli4_cfg_mhdr));
12909 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12910 LPFC_MBOX_OPCODE_CQ_DESTROY,
12911 length, LPFC_SLI4_MBX_EMBED);
12912 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
12914 mbox->vport = cq->phba->pport;
12915 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12916 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
12917 /* The IOCTL status is embedded in the mailbox subheader. */
12918 shdr = (union lpfc_sli4_cfg_shdr *)
12919 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
12920 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12921 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12922 if (shdr_status || shdr_add_status || rc) {
12923 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12924 "2506 CQ_DESTROY mailbox failed with "
12925 "status x%x add_status x%x, mbx status x%x\n",
12926 shdr_status, shdr_add_status, rc);
12929 /* Remove cq from any list */
12930 list_del_init(&cq->list);
12931 mempool_free(mbox, cq->phba->mbox_mem_pool);
12936 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
12937 * @qm: The queue structure associated with the queue to destroy.
12939 * This function destroys a queue, as detailed in @mq by sending an mailbox
12940 * command, specific to the type of queue, to the HBA.
12942 * The @mq struct is used to get the queue ID of the queue to destroy.
12944 * On success this function will return a zero. If the queue destroy mailbox
12945 * command fails this function will return -ENXIO.
12948 lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
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;
12955 /* sanity check on queue memory */
12958 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
12961 length = (sizeof(struct lpfc_mbx_mq_destroy) -
12962 sizeof(struct lpfc_sli4_cfg_mhdr));
12963 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12964 LPFC_MBOX_OPCODE_MQ_DESTROY,
12965 length, LPFC_SLI4_MBX_EMBED);
12966 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
12968 mbox->vport = mq->phba->pport;
12969 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12970 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
12971 /* The IOCTL status is embedded in the mailbox subheader. */
12972 shdr = (union lpfc_sli4_cfg_shdr *)
12973 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
12974 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12975 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12976 if (shdr_status || shdr_add_status || rc) {
12977 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12978 "2507 MQ_DESTROY mailbox failed with "
12979 "status x%x add_status x%x, mbx status x%x\n",
12980 shdr_status, shdr_add_status, rc);
12983 /* Remove mq from any list */
12984 list_del_init(&mq->list);
12985 mempool_free(mbox, mq->phba->mbox_mem_pool);
12990 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
12991 * @wq: The queue structure associated with the queue to destroy.
12993 * This function destroys a queue, as detailed in @wq by sending an mailbox
12994 * command, specific to the type of queue, to the HBA.
12996 * The @wq struct is used to get the queue ID of the queue to destroy.
12998 * On success this function will return a zero. If the queue destroy mailbox
12999 * command fails this function will return -ENXIO.
13002 lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
13004 LPFC_MBOXQ_t *mbox;
13005 int rc, length, status = 0;
13006 uint32_t shdr_status, shdr_add_status;
13007 union lpfc_sli4_cfg_shdr *shdr;
13009 /* sanity check on queue memory */
13012 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
13015 length = (sizeof(struct lpfc_mbx_wq_destroy) -
13016 sizeof(struct lpfc_sli4_cfg_mhdr));
13017 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13018 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
13019 length, LPFC_SLI4_MBX_EMBED);
13020 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
13022 mbox->vport = wq->phba->pport;
13023 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13024 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
13025 shdr = (union lpfc_sli4_cfg_shdr *)
13026 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
13027 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13028 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13029 if (shdr_status || shdr_add_status || rc) {
13030 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13031 "2508 WQ_DESTROY mailbox failed with "
13032 "status x%x add_status x%x, mbx status x%x\n",
13033 shdr_status, shdr_add_status, rc);
13036 /* Remove wq from any list */
13037 list_del_init(&wq->list);
13038 mempool_free(mbox, wq->phba->mbox_mem_pool);
13043 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
13044 * @rq: The queue structure associated with the queue to destroy.
13046 * This function destroys a queue, as detailed in @rq by sending an mailbox
13047 * command, specific to the type of queue, to the HBA.
13049 * The @rq struct is used to get the queue ID of the queue to destroy.
13051 * On success this function will return a zero. If the queue destroy mailbox
13052 * command fails this function will return -ENXIO.
13055 lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
13056 struct lpfc_queue *drq)
13058 LPFC_MBOXQ_t *mbox;
13059 int rc, length, status = 0;
13060 uint32_t shdr_status, shdr_add_status;
13061 union lpfc_sli4_cfg_shdr *shdr;
13063 /* sanity check on queue memory */
13066 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
13069 length = (sizeof(struct lpfc_mbx_rq_destroy) -
13070 sizeof(struct lpfc_sli4_cfg_mhdr));
13071 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13072 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
13073 length, LPFC_SLI4_MBX_EMBED);
13074 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
13076 mbox->vport = hrq->phba->pport;
13077 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13078 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
13079 /* The IOCTL status is embedded in the mailbox subheader. */
13080 shdr = (union lpfc_sli4_cfg_shdr *)
13081 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
13082 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13083 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13084 if (shdr_status || shdr_add_status || rc) {
13085 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13086 "2509 RQ_DESTROY mailbox failed with "
13087 "status x%x add_status x%x, mbx status x%x\n",
13088 shdr_status, shdr_add_status, rc);
13089 if (rc != MBX_TIMEOUT)
13090 mempool_free(mbox, hrq->phba->mbox_mem_pool);
13093 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
13095 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
13096 shdr = (union lpfc_sli4_cfg_shdr *)
13097 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
13098 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13099 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13100 if (shdr_status || shdr_add_status || rc) {
13101 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13102 "2510 RQ_DESTROY mailbox failed with "
13103 "status x%x add_status x%x, mbx status x%x\n",
13104 shdr_status, shdr_add_status, rc);
13107 list_del_init(&hrq->list);
13108 list_del_init(&drq->list);
13109 mempool_free(mbox, hrq->phba->mbox_mem_pool);
13114 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
13115 * @phba: The virtual port for which this call being executed.
13116 * @pdma_phys_addr0: Physical address of the 1st SGL page.
13117 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
13118 * @xritag: the xritag that ties this io to the SGL pages.
13120 * This routine will post the sgl pages for the IO that has the xritag
13121 * that is in the iocbq structure. The xritag is assigned during iocbq
13122 * creation and persists for as long as the driver is loaded.
13123 * if the caller has fewer than 256 scatter gather segments to map then
13124 * pdma_phys_addr1 should be 0.
13125 * If the caller needs to map more than 256 scatter gather segment then
13126 * pdma_phys_addr1 should be a valid physical address.
13127 * physical address for SGLs must be 64 byte aligned.
13128 * If you are going to map 2 SGL's then the first one must have 256 entries
13129 * the second sgl can have between 1 and 256 entries.
13133 * -ENXIO, -ENOMEM - Failure
13136 lpfc_sli4_post_sgl(struct lpfc_hba *phba,
13137 dma_addr_t pdma_phys_addr0,
13138 dma_addr_t pdma_phys_addr1,
13141 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
13142 LPFC_MBOXQ_t *mbox;
13144 uint32_t shdr_status, shdr_add_status;
13146 union lpfc_sli4_cfg_shdr *shdr;
13148 if (xritag == NO_XRI) {
13149 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13150 "0364 Invalid param:\n");
13154 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13158 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13159 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
13160 sizeof(struct lpfc_mbx_post_sgl_pages) -
13161 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
13163 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
13164 &mbox->u.mqe.un.post_sgl_pages;
13165 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
13166 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
13168 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
13169 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
13170 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
13171 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
13173 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
13174 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
13175 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
13176 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
13177 if (!phba->sli4_hba.intr_enable)
13178 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13180 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
13181 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
13183 /* The IOCTL status is embedded in the mailbox subheader. */
13184 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
13185 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13186 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13187 if (rc != MBX_TIMEOUT)
13188 mempool_free(mbox, phba->mbox_mem_pool);
13189 if (shdr_status || shdr_add_status || rc) {
13190 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13191 "2511 POST_SGL mailbox failed with "
13192 "status x%x add_status x%x, mbx status x%x\n",
13193 shdr_status, shdr_add_status, rc);
13200 * lpfc_sli4_alloc_xri - Get an available rpi in the device's range
13201 * @phba: pointer to lpfc hba data structure.
13203 * This routine is invoked to post rpi header templates to the
13204 * HBA consistent with the SLI-4 interface spec. This routine
13205 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
13206 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
13209 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
13210 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
13213 lpfc_sli4_alloc_xri(struct lpfc_hba *phba)
13218 * Fetch the next logical xri. Because this index is logical,
13219 * the driver starts at 0 each time.
13221 spin_lock_irq(&phba->hbalock);
13222 xri = find_next_zero_bit(phba->sli4_hba.xri_bmask,
13223 phba->sli4_hba.max_cfg_param.max_xri, 0);
13224 if (xri >= phba->sli4_hba.max_cfg_param.max_xri) {
13225 spin_unlock_irq(&phba->hbalock);
13228 set_bit(xri, phba->sli4_hba.xri_bmask);
13229 phba->sli4_hba.max_cfg_param.xri_used++;
13231 spin_unlock_irq(&phba->hbalock);
13236 * lpfc_sli4_free_xri - Release an xri for reuse.
13237 * @phba: pointer to lpfc hba data structure.
13239 * This routine is invoked to release an xri to the pool of
13240 * available rpis maintained by the driver.
13243 __lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
13245 if (test_and_clear_bit(xri, phba->sli4_hba.xri_bmask)) {
13246 phba->sli4_hba.max_cfg_param.xri_used--;
13251 * lpfc_sli4_free_xri - Release an xri for reuse.
13252 * @phba: pointer to lpfc hba data structure.
13254 * This routine is invoked to release an xri to the pool of
13255 * available rpis maintained by the driver.
13258 lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
13260 spin_lock_irq(&phba->hbalock);
13261 __lpfc_sli4_free_xri(phba, xri);
13262 spin_unlock_irq(&phba->hbalock);
13266 * lpfc_sli4_next_xritag - Get an xritag for the io
13267 * @phba: Pointer to HBA context object.
13269 * This function gets an xritag for the iocb. If there is no unused xritag
13270 * it will return 0xffff.
13271 * The function returns the allocated xritag if successful, else returns zero.
13272 * Zero is not a valid xritag.
13273 * The caller is not required to hold any lock.
13276 lpfc_sli4_next_xritag(struct lpfc_hba *phba)
13278 uint16_t xri_index;
13280 xri_index = lpfc_sli4_alloc_xri(phba);
13281 if (xri_index != NO_XRI)
13284 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13285 "2004 Failed to allocate XRI.last XRITAG is %d"
13286 " Max XRI is %d, Used XRI is %d\n",
13288 phba->sli4_hba.max_cfg_param.max_xri,
13289 phba->sli4_hba.max_cfg_param.xri_used);
13294 * lpfc_sli4_post_els_sgl_list - post a block of ELS sgls to the port.
13295 * @phba: pointer to lpfc hba data structure.
13296 * @post_sgl_list: pointer to els sgl entry list.
13297 * @count: number of els sgl entries on the list.
13299 * This routine is invoked to post a block of driver's sgl pages to the
13300 * HBA using non-embedded mailbox command. No Lock is held. This routine
13301 * is only called when the driver is loading and after all IO has been
13305 lpfc_sli4_post_els_sgl_list(struct lpfc_hba *phba,
13306 struct list_head *post_sgl_list,
13309 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
13310 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
13311 struct sgl_page_pairs *sgl_pg_pairs;
13313 LPFC_MBOXQ_t *mbox;
13314 uint32_t reqlen, alloclen, pg_pairs;
13316 uint16_t xritag_start = 0;
13318 uint32_t shdr_status, shdr_add_status;
13319 union lpfc_sli4_cfg_shdr *shdr;
13321 reqlen = phba->sli4_hba.els_xri_cnt * sizeof(struct sgl_page_pairs) +
13322 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
13323 if (reqlen > SLI4_PAGE_SIZE) {
13324 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13325 "2559 Block sgl registration required DMA "
13326 "size (%d) great than a page\n", reqlen);
13329 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13333 /* Allocate DMA memory and set up the non-embedded mailbox command */
13334 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13335 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
13336 LPFC_SLI4_MBX_NEMBED);
13338 if (alloclen < reqlen) {
13339 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13340 "0285 Allocated DMA memory size (%d) is "
13341 "less than the requested DMA memory "
13342 "size (%d)\n", alloclen, reqlen);
13343 lpfc_sli4_mbox_cmd_free(phba, mbox);
13346 /* Set up the SGL pages in the non-embedded DMA pages */
13347 viraddr = mbox->sge_array->addr[0];
13348 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
13349 sgl_pg_pairs = &sgl->sgl_pg_pairs;
13352 list_for_each_entry_safe(sglq_entry, sglq_next, post_sgl_list, list) {
13353 /* Set up the sge entry */
13354 sgl_pg_pairs->sgl_pg0_addr_lo =
13355 cpu_to_le32(putPaddrLow(sglq_entry->phys));
13356 sgl_pg_pairs->sgl_pg0_addr_hi =
13357 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
13358 sgl_pg_pairs->sgl_pg1_addr_lo =
13359 cpu_to_le32(putPaddrLow(0));
13360 sgl_pg_pairs->sgl_pg1_addr_hi =
13361 cpu_to_le32(putPaddrHigh(0));
13363 /* Keep the first xritag on the list */
13365 xritag_start = sglq_entry->sli4_xritag;
13370 /* Complete initialization and perform endian conversion. */
13371 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
13372 bf_set(lpfc_post_sgl_pages_xricnt, sgl, phba->sli4_hba.els_xri_cnt);
13373 sgl->word0 = cpu_to_le32(sgl->word0);
13374 if (!phba->sli4_hba.intr_enable)
13375 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13377 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
13378 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
13380 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
13381 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13382 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13383 if (rc != MBX_TIMEOUT)
13384 lpfc_sli4_mbox_cmd_free(phba, mbox);
13385 if (shdr_status || shdr_add_status || rc) {
13386 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13387 "2513 POST_SGL_BLOCK mailbox command failed "
13388 "status x%x add_status x%x mbx status x%x\n",
13389 shdr_status, shdr_add_status, rc);
13396 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
13397 * @phba: pointer to lpfc hba data structure.
13398 * @sblist: pointer to scsi buffer list.
13399 * @count: number of scsi buffers on the list.
13401 * This routine is invoked to post a block of @count scsi sgl pages from a
13402 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
13407 lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba,
13408 struct list_head *sblist,
13411 struct lpfc_scsi_buf *psb;
13412 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
13413 struct sgl_page_pairs *sgl_pg_pairs;
13415 LPFC_MBOXQ_t *mbox;
13416 uint32_t reqlen, alloclen, pg_pairs;
13418 uint16_t xritag_start = 0;
13420 uint32_t shdr_status, shdr_add_status;
13421 dma_addr_t pdma_phys_bpl1;
13422 union lpfc_sli4_cfg_shdr *shdr;
13424 /* Calculate the requested length of the dma memory */
13425 reqlen = count * sizeof(struct sgl_page_pairs) +
13426 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
13427 if (reqlen > SLI4_PAGE_SIZE) {
13428 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13429 "0217 Block sgl registration required DMA "
13430 "size (%d) great than a page\n", reqlen);
13433 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13435 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13436 "0283 Failed to allocate mbox cmd memory\n");
13440 /* Allocate DMA memory and set up the non-embedded mailbox command */
13441 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13442 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
13443 LPFC_SLI4_MBX_NEMBED);
13445 if (alloclen < reqlen) {
13446 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13447 "2561 Allocated DMA memory size (%d) is "
13448 "less than the requested DMA memory "
13449 "size (%d)\n", alloclen, reqlen);
13450 lpfc_sli4_mbox_cmd_free(phba, mbox);
13454 /* Get the first SGE entry from the non-embedded DMA memory */
13455 viraddr = mbox->sge_array->addr[0];
13457 /* Set up the SGL pages in the non-embedded DMA pages */
13458 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
13459 sgl_pg_pairs = &sgl->sgl_pg_pairs;
13462 list_for_each_entry(psb, sblist, list) {
13463 /* Set up the sge entry */
13464 sgl_pg_pairs->sgl_pg0_addr_lo =
13465 cpu_to_le32(putPaddrLow(psb->dma_phys_bpl));
13466 sgl_pg_pairs->sgl_pg0_addr_hi =
13467 cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl));
13468 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
13469 pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE;
13471 pdma_phys_bpl1 = 0;
13472 sgl_pg_pairs->sgl_pg1_addr_lo =
13473 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
13474 sgl_pg_pairs->sgl_pg1_addr_hi =
13475 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
13476 /* Keep the first xritag on the list */
13478 xritag_start = psb->cur_iocbq.sli4_xritag;
13482 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
13483 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
13484 /* Perform endian conversion if necessary */
13485 sgl->word0 = cpu_to_le32(sgl->word0);
13487 if (!phba->sli4_hba.intr_enable)
13488 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13490 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
13491 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
13493 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
13494 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13495 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13496 if (rc != MBX_TIMEOUT)
13497 lpfc_sli4_mbox_cmd_free(phba, mbox);
13498 if (shdr_status || shdr_add_status || rc) {
13499 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13500 "2564 POST_SGL_BLOCK mailbox command failed "
13501 "status x%x add_status x%x mbx status x%x\n",
13502 shdr_status, shdr_add_status, rc);
13509 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
13510 * @phba: pointer to lpfc_hba struct that the frame was received on
13511 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
13513 * This function checks the fields in the @fc_hdr to see if the FC frame is a
13514 * valid type of frame that the LPFC driver will handle. This function will
13515 * return a zero if the frame is a valid frame or a non zero value when the
13516 * frame does not pass the check.
13519 lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
13521 /* make rctl_names static to save stack space */
13522 static char *rctl_names[] = FC_RCTL_NAMES_INIT;
13523 char *type_names[] = FC_TYPE_NAMES_INIT;
13524 struct fc_vft_header *fc_vft_hdr;
13525 uint32_t *header = (uint32_t *) fc_hdr;
13527 switch (fc_hdr->fh_r_ctl) {
13528 case FC_RCTL_DD_UNCAT: /* uncategorized information */
13529 case FC_RCTL_DD_SOL_DATA: /* solicited data */
13530 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
13531 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
13532 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
13533 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
13534 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
13535 case FC_RCTL_DD_CMD_STATUS: /* command status */
13536 case FC_RCTL_ELS_REQ: /* extended link services request */
13537 case FC_RCTL_ELS_REP: /* extended link services reply */
13538 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
13539 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
13540 case FC_RCTL_BA_NOP: /* basic link service NOP */
13541 case FC_RCTL_BA_ABTS: /* basic link service abort */
13542 case FC_RCTL_BA_RMC: /* remove connection */
13543 case FC_RCTL_BA_ACC: /* basic accept */
13544 case FC_RCTL_BA_RJT: /* basic reject */
13545 case FC_RCTL_BA_PRMT:
13546 case FC_RCTL_ACK_1: /* acknowledge_1 */
13547 case FC_RCTL_ACK_0: /* acknowledge_0 */
13548 case FC_RCTL_P_RJT: /* port reject */
13549 case FC_RCTL_F_RJT: /* fabric reject */
13550 case FC_RCTL_P_BSY: /* port busy */
13551 case FC_RCTL_F_BSY: /* fabric busy to data frame */
13552 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
13553 case FC_RCTL_LCR: /* link credit reset */
13554 case FC_RCTL_END: /* end */
13556 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
13557 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
13558 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
13559 return lpfc_fc_frame_check(phba, fc_hdr);
13563 switch (fc_hdr->fh_type) {
13575 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
13576 "2538 Received frame rctl:%s type:%s "
13577 "Frame Data:%08x %08x %08x %08x %08x %08x\n",
13578 rctl_names[fc_hdr->fh_r_ctl],
13579 type_names[fc_hdr->fh_type],
13580 be32_to_cpu(header[0]), be32_to_cpu(header[1]),
13581 be32_to_cpu(header[2]), be32_to_cpu(header[3]),
13582 be32_to_cpu(header[4]), be32_to_cpu(header[5]));
13585 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
13586 "2539 Dropped frame rctl:%s type:%s\n",
13587 rctl_names[fc_hdr->fh_r_ctl],
13588 type_names[fc_hdr->fh_type]);
13593 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
13594 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
13596 * This function processes the FC header to retrieve the VFI from the VF
13597 * header, if one exists. This function will return the VFI if one exists
13598 * or 0 if no VSAN Header exists.
13601 lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
13603 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
13605 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
13607 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
13611 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
13612 * @phba: Pointer to the HBA structure to search for the vport on
13613 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
13614 * @fcfi: The FC Fabric ID that the frame came from
13616 * This function searches the @phba for a vport that matches the content of the
13617 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
13618 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
13619 * returns the matching vport pointer or NULL if unable to match frame to a
13622 static struct lpfc_vport *
13623 lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
13626 struct lpfc_vport **vports;
13627 struct lpfc_vport *vport = NULL;
13629 uint32_t did = (fc_hdr->fh_d_id[0] << 16 |
13630 fc_hdr->fh_d_id[1] << 8 |
13631 fc_hdr->fh_d_id[2]);
13632 if (did == Fabric_DID)
13633 return phba->pport;
13634 vports = lpfc_create_vport_work_array(phba);
13635 if (vports != NULL)
13636 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
13637 if (phba->fcf.fcfi == fcfi &&
13638 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
13639 vports[i]->fc_myDID == did) {
13644 lpfc_destroy_vport_work_array(phba, vports);
13649 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
13650 * @vport: The vport to work on.
13652 * This function updates the receive sequence time stamp for this vport. The
13653 * receive sequence time stamp indicates the time that the last frame of the
13654 * the sequence that has been idle for the longest amount of time was received.
13655 * the driver uses this time stamp to indicate if any received sequences have
13659 lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
13661 struct lpfc_dmabuf *h_buf;
13662 struct hbq_dmabuf *dmabuf = NULL;
13664 /* get the oldest sequence on the rcv list */
13665 h_buf = list_get_first(&vport->rcv_buffer_list,
13666 struct lpfc_dmabuf, list);
13669 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
13670 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
13674 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
13675 * @vport: The vport that the received sequences were sent to.
13677 * This function cleans up all outstanding received sequences. This is called
13678 * by the driver when a link event or user action invalidates all the received
13682 lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
13684 struct lpfc_dmabuf *h_buf, *hnext;
13685 struct lpfc_dmabuf *d_buf, *dnext;
13686 struct hbq_dmabuf *dmabuf = NULL;
13688 /* start with the oldest sequence on the rcv list */
13689 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
13690 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
13691 list_del_init(&dmabuf->hbuf.list);
13692 list_for_each_entry_safe(d_buf, dnext,
13693 &dmabuf->dbuf.list, list) {
13694 list_del_init(&d_buf->list);
13695 lpfc_in_buf_free(vport->phba, d_buf);
13697 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
13702 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
13703 * @vport: The vport that the received sequences were sent to.
13705 * This function determines whether any received sequences have timed out by
13706 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
13707 * indicates that there is at least one timed out sequence this routine will
13708 * go through the received sequences one at a time from most inactive to most
13709 * active to determine which ones need to be cleaned up. Once it has determined
13710 * that a sequence needs to be cleaned up it will simply free up the resources
13711 * without sending an abort.
13714 lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
13716 struct lpfc_dmabuf *h_buf, *hnext;
13717 struct lpfc_dmabuf *d_buf, *dnext;
13718 struct hbq_dmabuf *dmabuf = NULL;
13719 unsigned long timeout;
13720 int abort_count = 0;
13722 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
13723 vport->rcv_buffer_time_stamp);
13724 if (list_empty(&vport->rcv_buffer_list) ||
13725 time_before(jiffies, timeout))
13727 /* start with the oldest sequence on the rcv list */
13728 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
13729 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
13730 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
13731 dmabuf->time_stamp);
13732 if (time_before(jiffies, timeout))
13735 list_del_init(&dmabuf->hbuf.list);
13736 list_for_each_entry_safe(d_buf, dnext,
13737 &dmabuf->dbuf.list, list) {
13738 list_del_init(&d_buf->list);
13739 lpfc_in_buf_free(vport->phba, d_buf);
13741 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
13744 lpfc_update_rcv_time_stamp(vport);
13748 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
13749 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
13751 * This function searches through the existing incomplete sequences that have
13752 * been sent to this @vport. If the frame matches one of the incomplete
13753 * sequences then the dbuf in the @dmabuf is added to the list of frames that
13754 * make up that sequence. If no sequence is found that matches this frame then
13755 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
13756 * This function returns a pointer to the first dmabuf in the sequence list that
13757 * the frame was linked to.
13759 static struct hbq_dmabuf *
13760 lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
13762 struct fc_frame_header *new_hdr;
13763 struct fc_frame_header *temp_hdr;
13764 struct lpfc_dmabuf *d_buf;
13765 struct lpfc_dmabuf *h_buf;
13766 struct hbq_dmabuf *seq_dmabuf = NULL;
13767 struct hbq_dmabuf *temp_dmabuf = NULL;
13769 INIT_LIST_HEAD(&dmabuf->dbuf.list);
13770 dmabuf->time_stamp = jiffies;
13771 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
13772 /* Use the hdr_buf to find the sequence that this frame belongs to */
13773 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
13774 temp_hdr = (struct fc_frame_header *)h_buf->virt;
13775 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
13776 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
13777 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
13779 /* found a pending sequence that matches this frame */
13780 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
13785 * This indicates first frame received for this sequence.
13786 * Queue the buffer on the vport's rcv_buffer_list.
13788 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
13789 lpfc_update_rcv_time_stamp(vport);
13792 temp_hdr = seq_dmabuf->hbuf.virt;
13793 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
13794 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
13795 list_del_init(&seq_dmabuf->hbuf.list);
13796 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
13797 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
13798 lpfc_update_rcv_time_stamp(vport);
13801 /* move this sequence to the tail to indicate a young sequence */
13802 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
13803 seq_dmabuf->time_stamp = jiffies;
13804 lpfc_update_rcv_time_stamp(vport);
13805 if (list_empty(&seq_dmabuf->dbuf.list)) {
13806 temp_hdr = dmabuf->hbuf.virt;
13807 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
13810 /* find the correct place in the sequence to insert this frame */
13811 list_for_each_entry_reverse(d_buf, &seq_dmabuf->dbuf.list, list) {
13812 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
13813 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
13815 * If the frame's sequence count is greater than the frame on
13816 * the list then insert the frame right after this frame
13818 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
13819 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
13820 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
13828 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
13829 * @vport: pointer to a vitural port
13830 * @dmabuf: pointer to a dmabuf that describes the FC sequence
13832 * This function tries to abort from the partially assembed sequence, described
13833 * by the information from basic abbort @dmabuf. It checks to see whether such
13834 * partially assembled sequence held by the driver. If so, it shall free up all
13835 * the frames from the partially assembled sequence.
13838 * true -- if there is matching partially assembled sequence present and all
13839 * the frames freed with the sequence;
13840 * false -- if there is no matching partially assembled sequence present so
13841 * nothing got aborted in the lower layer driver
13844 lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
13845 struct hbq_dmabuf *dmabuf)
13847 struct fc_frame_header *new_hdr;
13848 struct fc_frame_header *temp_hdr;
13849 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
13850 struct hbq_dmabuf *seq_dmabuf = NULL;
13852 /* Use the hdr_buf to find the sequence that matches this frame */
13853 INIT_LIST_HEAD(&dmabuf->dbuf.list);
13854 INIT_LIST_HEAD(&dmabuf->hbuf.list);
13855 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
13856 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
13857 temp_hdr = (struct fc_frame_header *)h_buf->virt;
13858 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
13859 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
13860 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
13862 /* found a pending sequence that matches this frame */
13863 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
13867 /* Free up all the frames from the partially assembled sequence */
13869 list_for_each_entry_safe(d_buf, n_buf,
13870 &seq_dmabuf->dbuf.list, list) {
13871 list_del_init(&d_buf->list);
13872 lpfc_in_buf_free(vport->phba, d_buf);
13880 * lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler
13881 * @phba: Pointer to HBA context object.
13882 * @cmd_iocbq: pointer to the command iocbq structure.
13883 * @rsp_iocbq: pointer to the response iocbq structure.
13885 * This function handles the sequence abort response iocb command complete
13886 * event. It properly releases the memory allocated to the sequence abort
13890 lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba *phba,
13891 struct lpfc_iocbq *cmd_iocbq,
13892 struct lpfc_iocbq *rsp_iocbq)
13895 lpfc_sli_release_iocbq(phba, cmd_iocbq);
13897 /* Failure means BLS ABORT RSP did not get delivered to remote node*/
13898 if (rsp_iocbq && rsp_iocbq->iocb.ulpStatus)
13899 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13900 "3154 BLS ABORT RSP failed, data: x%x/x%x\n",
13901 rsp_iocbq->iocb.ulpStatus,
13902 rsp_iocbq->iocb.un.ulpWord[4]);
13906 * lpfc_sli4_xri_inrange - check xri is in range of xris owned by driver.
13907 * @phba: Pointer to HBA context object.
13908 * @xri: xri id in transaction.
13910 * This function validates the xri maps to the known range of XRIs allocated an
13911 * used by the driver.
13914 lpfc_sli4_xri_inrange(struct lpfc_hba *phba,
13919 for (i = 0; i < phba->sli4_hba.max_cfg_param.max_xri; i++) {
13920 if (xri == phba->sli4_hba.xri_ids[i])
13928 * lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort
13929 * @phba: Pointer to HBA context object.
13930 * @fc_hdr: pointer to a FC frame header.
13932 * This function sends a basic response to a previous unsol sequence abort
13933 * event after aborting the sequence handling.
13936 lpfc_sli4_seq_abort_rsp(struct lpfc_hba *phba,
13937 struct fc_frame_header *fc_hdr)
13939 struct lpfc_iocbq *ctiocb = NULL;
13940 struct lpfc_nodelist *ndlp;
13941 uint16_t oxid, rxid;
13942 uint32_t sid, fctl;
13946 if (!lpfc_is_link_up(phba))
13949 sid = sli4_sid_from_fc_hdr(fc_hdr);
13950 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
13951 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
13953 ndlp = lpfc_findnode_did(phba->pport, sid);
13955 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
13956 "1268 Find ndlp returned NULL for oxid:x%x "
13957 "SID:x%x\n", oxid, sid);
13960 if (lpfc_sli4_xri_inrange(phba, rxid))
13961 lpfc_set_rrq_active(phba, ndlp, rxid, oxid, 0);
13963 /* Allocate buffer for rsp iocb */
13964 ctiocb = lpfc_sli_get_iocbq(phba);
13968 /* Extract the F_CTL field from FC_HDR */
13969 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
13971 icmd = &ctiocb->iocb;
13972 icmd->un.xseq64.bdl.bdeSize = 0;
13973 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
13974 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
13975 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
13976 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
13978 /* Fill in the rest of iocb fields */
13979 icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
13980 icmd->ulpBdeCount = 0;
13982 icmd->ulpClass = CLASS3;
13983 icmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
13984 ctiocb->context1 = ndlp;
13986 ctiocb->iocb_cmpl = NULL;
13987 ctiocb->vport = phba->pport;
13988 ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_rsp_cmpl;
13989 ctiocb->sli4_lxritag = NO_XRI;
13990 ctiocb->sli4_xritag = NO_XRI;
13992 /* If the oxid maps to the FCP XRI range or if it is out of range,
13993 * send a BLS_RJT. The driver no longer has that exchange.
13994 * Override the IOCB for a BA_RJT.
13996 if (oxid > (phba->sli4_hba.max_cfg_param.max_xri +
13997 phba->sli4_hba.max_cfg_param.xri_base) ||
13998 oxid > (lpfc_sli4_get_els_iocb_cnt(phba) +
13999 phba->sli4_hba.max_cfg_param.xri_base)) {
14000 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
14001 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
14002 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
14003 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
14006 if (fctl & FC_FC_EX_CTX) {
14007 /* ABTS sent by responder to CT exchange, construction
14008 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
14009 * field and RX_ID from ABTS for RX_ID field.
14011 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_RSP);
14013 /* ABTS sent by initiator to CT exchange, construction
14014 * of BA_ACC will need to allocate a new XRI as for the
14017 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_INT);
14019 bf_set(lpfc_abts_rxid, &icmd->un.bls_rsp, rxid);
14020 bf_set(lpfc_abts_oxid, &icmd->un.bls_rsp, oxid);
14022 /* Xmit CT abts response on exchange <xid> */
14023 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
14024 "1200 Send BLS cmd x%x on oxid x%x Data: x%x\n",
14025 icmd->un.xseq64.w5.hcsw.Rctl, oxid, phba->link_state);
14027 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
14028 if (rc == IOCB_ERROR) {
14029 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
14030 "2925 Failed to issue CT ABTS RSP x%x on "
14031 "xri x%x, Data x%x\n",
14032 icmd->un.xseq64.w5.hcsw.Rctl, oxid,
14034 lpfc_sli_release_iocbq(phba, ctiocb);
14039 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
14040 * @vport: Pointer to the vport on which this sequence was received
14041 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14043 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
14044 * receive sequence is only partially assembed by the driver, it shall abort
14045 * the partially assembled frames for the sequence. Otherwise, if the
14046 * unsolicited receive sequence has been completely assembled and passed to
14047 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
14048 * unsolicited sequence has been aborted. After that, it will issue a basic
14049 * accept to accept the abort.
14052 lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
14053 struct hbq_dmabuf *dmabuf)
14055 struct lpfc_hba *phba = vport->phba;
14056 struct fc_frame_header fc_hdr;
14060 /* Make a copy of fc_hdr before the dmabuf being released */
14061 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
14062 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
14064 if (fctl & FC_FC_EX_CTX) {
14066 * ABTS sent by responder to exchange, just free the buffer
14068 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14071 * ABTS sent by initiator to exchange, need to do cleanup
14073 /* Try to abort partially assembled seq */
14074 abts_par = lpfc_sli4_abort_partial_seq(vport, dmabuf);
14076 /* Send abort to ULP if partially seq abort failed */
14077 if (abts_par == false)
14078 lpfc_sli4_send_seq_to_ulp(vport, dmabuf);
14080 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14082 /* Send basic accept (BA_ACC) to the abort requester */
14083 lpfc_sli4_seq_abort_rsp(phba, &fc_hdr);
14087 * lpfc_seq_complete - Indicates if a sequence is complete
14088 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14090 * This function checks the sequence, starting with the frame described by
14091 * @dmabuf, to see if all the frames associated with this sequence are present.
14092 * the frames associated with this sequence are linked to the @dmabuf using the
14093 * dbuf list. This function looks for two major things. 1) That the first frame
14094 * has a sequence count of zero. 2) There is a frame with last frame of sequence
14095 * set. 3) That there are no holes in the sequence count. The function will
14096 * return 1 when the sequence is complete, otherwise it will return 0.
14099 lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
14101 struct fc_frame_header *hdr;
14102 struct lpfc_dmabuf *d_buf;
14103 struct hbq_dmabuf *seq_dmabuf;
14107 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14108 /* make sure first fame of sequence has a sequence count of zero */
14109 if (hdr->fh_seq_cnt != seq_count)
14111 fctl = (hdr->fh_f_ctl[0] << 16 |
14112 hdr->fh_f_ctl[1] << 8 |
14114 /* If last frame of sequence we can return success. */
14115 if (fctl & FC_FC_END_SEQ)
14117 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
14118 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14119 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
14120 /* If there is a hole in the sequence count then fail. */
14121 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
14123 fctl = (hdr->fh_f_ctl[0] << 16 |
14124 hdr->fh_f_ctl[1] << 8 |
14126 /* If last frame of sequence we can return success. */
14127 if (fctl & FC_FC_END_SEQ)
14134 * lpfc_prep_seq - Prep sequence for ULP processing
14135 * @vport: Pointer to the vport on which this sequence was received
14136 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14138 * This function takes a sequence, described by a list of frames, and creates
14139 * a list of iocbq structures to describe the sequence. This iocbq list will be
14140 * used to issue to the generic unsolicited sequence handler. This routine
14141 * returns a pointer to the first iocbq in the list. If the function is unable
14142 * to allocate an iocbq then it throw out the received frames that were not
14143 * able to be described and return a pointer to the first iocbq. If unable to
14144 * allocate any iocbqs (including the first) this function will return NULL.
14146 static struct lpfc_iocbq *
14147 lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
14149 struct hbq_dmabuf *hbq_buf;
14150 struct lpfc_dmabuf *d_buf, *n_buf;
14151 struct lpfc_iocbq *first_iocbq, *iocbq;
14152 struct fc_frame_header *fc_hdr;
14154 uint32_t len, tot_len;
14155 struct ulp_bde64 *pbde;
14157 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
14158 /* remove from receive buffer list */
14159 list_del_init(&seq_dmabuf->hbuf.list);
14160 lpfc_update_rcv_time_stamp(vport);
14161 /* get the Remote Port's SID */
14162 sid = sli4_sid_from_fc_hdr(fc_hdr);
14164 /* Get an iocbq struct to fill in. */
14165 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
14167 /* Initialize the first IOCB. */
14168 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
14169 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
14170 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
14171 first_iocbq->iocb.ulpContext = NO_XRI;
14172 first_iocbq->iocb.unsli3.rcvsli3.ox_id =
14173 be16_to_cpu(fc_hdr->fh_ox_id);
14174 /* iocbq is prepped for internal consumption. Physical vpi. */
14175 first_iocbq->iocb.unsli3.rcvsli3.vpi =
14176 vport->phba->vpi_ids[vport->vpi];
14177 /* put the first buffer into the first IOCBq */
14178 first_iocbq->context2 = &seq_dmabuf->dbuf;
14179 first_iocbq->context3 = NULL;
14180 first_iocbq->iocb.ulpBdeCount = 1;
14181 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
14182 LPFC_DATA_BUF_SIZE;
14183 first_iocbq->iocb.un.rcvels.remoteID = sid;
14184 tot_len = bf_get(lpfc_rcqe_length,
14185 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
14186 first_iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
14188 iocbq = first_iocbq;
14190 * Each IOCBq can have two Buffers assigned, so go through the list
14191 * of buffers for this sequence and save two buffers in each IOCBq
14193 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
14195 lpfc_in_buf_free(vport->phba, d_buf);
14198 if (!iocbq->context3) {
14199 iocbq->context3 = d_buf;
14200 iocbq->iocb.ulpBdeCount++;
14201 pbde = (struct ulp_bde64 *)
14202 &iocbq->iocb.unsli3.sli3Words[4];
14203 pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
14205 /* We need to get the size out of the right CQE */
14206 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14207 len = bf_get(lpfc_rcqe_length,
14208 &hbq_buf->cq_event.cqe.rcqe_cmpl);
14209 iocbq->iocb.unsli3.rcvsli3.acc_len += len;
14212 iocbq = lpfc_sli_get_iocbq(vport->phba);
14215 first_iocbq->iocb.ulpStatus =
14216 IOSTAT_FCP_RSP_ERROR;
14217 first_iocbq->iocb.un.ulpWord[4] =
14218 IOERR_NO_RESOURCES;
14220 lpfc_in_buf_free(vport->phba, d_buf);
14223 iocbq->context2 = d_buf;
14224 iocbq->context3 = NULL;
14225 iocbq->iocb.ulpBdeCount = 1;
14226 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
14227 LPFC_DATA_BUF_SIZE;
14229 /* We need to get the size out of the right CQE */
14230 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14231 len = bf_get(lpfc_rcqe_length,
14232 &hbq_buf->cq_event.cqe.rcqe_cmpl);
14234 iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
14236 iocbq->iocb.un.rcvels.remoteID = sid;
14237 list_add_tail(&iocbq->list, &first_iocbq->list);
14240 return first_iocbq;
14244 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
14245 struct hbq_dmabuf *seq_dmabuf)
14247 struct fc_frame_header *fc_hdr;
14248 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
14249 struct lpfc_hba *phba = vport->phba;
14251 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
14252 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
14254 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14255 "2707 Ring %d handler: Failed to allocate "
14256 "iocb Rctl x%x Type x%x received\n",
14258 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
14261 if (!lpfc_complete_unsol_iocb(phba,
14262 &phba->sli.ring[LPFC_ELS_RING],
14263 iocbq, fc_hdr->fh_r_ctl,
14265 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14266 "2540 Ring %d handler: unexpected Rctl "
14267 "x%x Type x%x received\n",
14269 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
14271 /* Free iocb created in lpfc_prep_seq */
14272 list_for_each_entry_safe(curr_iocb, next_iocb,
14273 &iocbq->list, list) {
14274 list_del_init(&curr_iocb->list);
14275 lpfc_sli_release_iocbq(phba, curr_iocb);
14277 lpfc_sli_release_iocbq(phba, iocbq);
14281 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
14282 * @phba: Pointer to HBA context object.
14284 * This function is called with no lock held. This function processes all
14285 * the received buffers and gives it to upper layers when a received buffer
14286 * indicates that it is the final frame in the sequence. The interrupt
14287 * service routine processes received buffers at interrupt contexts and adds
14288 * received dma buffers to the rb_pend_list queue and signals the worker thread.
14289 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
14290 * appropriate receive function when the final frame in a sequence is received.
14293 lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
14294 struct hbq_dmabuf *dmabuf)
14296 struct hbq_dmabuf *seq_dmabuf;
14297 struct fc_frame_header *fc_hdr;
14298 struct lpfc_vport *vport;
14301 /* Process each received buffer */
14302 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14303 /* check to see if this a valid type of frame */
14304 if (lpfc_fc_frame_check(phba, fc_hdr)) {
14305 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14308 if ((bf_get(lpfc_cqe_code,
14309 &dmabuf->cq_event.cqe.rcqe_cmpl) == CQE_CODE_RECEIVE_V1))
14310 fcfi = bf_get(lpfc_rcqe_fcf_id_v1,
14311 &dmabuf->cq_event.cqe.rcqe_cmpl);
14313 fcfi = bf_get(lpfc_rcqe_fcf_id,
14314 &dmabuf->cq_event.cqe.rcqe_cmpl);
14315 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi);
14316 if (!vport || !(vport->vpi_state & LPFC_VPI_REGISTERED)) {
14317 /* throw out the frame */
14318 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14321 /* Handle the basic abort sequence (BA_ABTS) event */
14322 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
14323 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
14327 /* Link this frame */
14328 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
14330 /* unable to add frame to vport - throw it out */
14331 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14334 /* If not last frame in sequence continue processing frames. */
14335 if (!lpfc_seq_complete(seq_dmabuf))
14338 /* Send the complete sequence to the upper layer protocol */
14339 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
14343 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
14344 * @phba: pointer to lpfc hba data structure.
14346 * This routine is invoked to post rpi header templates to the
14347 * HBA consistent with the SLI-4 interface spec. This routine
14348 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
14349 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
14351 * This routine does not require any locks. It's usage is expected
14352 * to be driver load or reset recovery when the driver is
14357 * -EIO - The mailbox failed to complete successfully.
14358 * When this error occurs, the driver is not guaranteed
14359 * to have any rpi regions posted to the device and
14360 * must either attempt to repost the regions or take a
14364 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
14366 struct lpfc_rpi_hdr *rpi_page;
14370 /* SLI4 ports that support extents do not require RPI headers. */
14371 if (!phba->sli4_hba.rpi_hdrs_in_use)
14373 if (phba->sli4_hba.extents_in_use)
14376 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
14378 * Assign the rpi headers a physical rpi only if the driver
14379 * has not initialized those resources. A port reset only
14380 * needs the headers posted.
14382 if (bf_get(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags) !=
14384 rpi_page->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
14386 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
14387 if (rc != MBX_SUCCESS) {
14388 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14389 "2008 Error %d posting all rpi "
14397 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags,
14398 LPFC_RPI_RSRC_RDY);
14403 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
14404 * @phba: pointer to lpfc hba data structure.
14405 * @rpi_page: pointer to the rpi memory region.
14407 * This routine is invoked to post a single rpi header to the
14408 * HBA consistent with the SLI-4 interface spec. This memory region
14409 * maps up to 64 rpi context regions.
14413 * -ENOMEM - No available memory
14414 * -EIO - The mailbox failed to complete successfully.
14417 lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
14419 LPFC_MBOXQ_t *mboxq;
14420 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
14422 uint32_t shdr_status, shdr_add_status;
14423 union lpfc_sli4_cfg_shdr *shdr;
14425 /* SLI4 ports that support extents do not require RPI headers. */
14426 if (!phba->sli4_hba.rpi_hdrs_in_use)
14428 if (phba->sli4_hba.extents_in_use)
14431 /* The port is notified of the header region via a mailbox command. */
14432 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14434 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14435 "2001 Unable to allocate memory for issuing "
14436 "SLI_CONFIG_SPECIAL mailbox command\n");
14440 /* Post all rpi memory regions to the port. */
14441 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
14442 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
14443 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
14444 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
14445 sizeof(struct lpfc_sli4_cfg_mhdr),
14446 LPFC_SLI4_MBX_EMBED);
14449 /* Post the physical rpi to the port for this rpi header. */
14450 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
14451 rpi_page->start_rpi);
14452 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
14453 hdr_tmpl, rpi_page->page_count);
14455 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
14456 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
14457 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
14458 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
14459 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14460 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14461 if (rc != MBX_TIMEOUT)
14462 mempool_free(mboxq, phba->mbox_mem_pool);
14463 if (shdr_status || shdr_add_status || rc) {
14464 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14465 "2514 POST_RPI_HDR mailbox failed with "
14466 "status x%x add_status x%x, mbx status x%x\n",
14467 shdr_status, shdr_add_status, rc);
14474 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
14475 * @phba: pointer to lpfc hba data structure.
14477 * This routine is invoked to post rpi header templates to the
14478 * HBA consistent with the SLI-4 interface spec. This routine
14479 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
14480 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
14483 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
14484 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
14487 lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
14490 uint16_t max_rpi, rpi_limit;
14491 uint16_t rpi_remaining, lrpi = 0;
14492 struct lpfc_rpi_hdr *rpi_hdr;
14494 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
14495 rpi_limit = phba->sli4_hba.next_rpi;
14498 * Fetch the next logical rpi. Because this index is logical,
14499 * the driver starts at 0 each time.
14501 spin_lock_irq(&phba->hbalock);
14502 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, 0);
14503 if (rpi >= rpi_limit)
14504 rpi = LPFC_RPI_ALLOC_ERROR;
14506 set_bit(rpi, phba->sli4_hba.rpi_bmask);
14507 phba->sli4_hba.max_cfg_param.rpi_used++;
14508 phba->sli4_hba.rpi_count++;
14512 * Don't try to allocate more rpi header regions if the device limit
14513 * has been exhausted.
14515 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
14516 (phba->sli4_hba.rpi_count >= max_rpi)) {
14517 spin_unlock_irq(&phba->hbalock);
14522 * RPI header postings are not required for SLI4 ports capable of
14525 if (!phba->sli4_hba.rpi_hdrs_in_use) {
14526 spin_unlock_irq(&phba->hbalock);
14531 * If the driver is running low on rpi resources, allocate another
14532 * page now. Note that the next_rpi value is used because
14533 * it represents how many are actually in use whereas max_rpi notes
14534 * how many are supported max by the device.
14536 rpi_remaining = phba->sli4_hba.next_rpi - phba->sli4_hba.rpi_count;
14537 spin_unlock_irq(&phba->hbalock);
14538 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
14539 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
14541 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14542 "2002 Error Could not grow rpi "
14545 lrpi = rpi_hdr->start_rpi;
14546 rpi_hdr->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
14547 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
14555 * lpfc_sli4_free_rpi - Release an rpi for reuse.
14556 * @phba: pointer to lpfc hba data structure.
14558 * This routine is invoked to release an rpi to the pool of
14559 * available rpis maintained by the driver.
14562 __lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
14564 if (test_and_clear_bit(rpi, phba->sli4_hba.rpi_bmask)) {
14565 phba->sli4_hba.rpi_count--;
14566 phba->sli4_hba.max_cfg_param.rpi_used--;
14571 * lpfc_sli4_free_rpi - Release an rpi for reuse.
14572 * @phba: pointer to lpfc hba data structure.
14574 * This routine is invoked to release an rpi to the pool of
14575 * available rpis maintained by the driver.
14578 lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
14580 spin_lock_irq(&phba->hbalock);
14581 __lpfc_sli4_free_rpi(phba, rpi);
14582 spin_unlock_irq(&phba->hbalock);
14586 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
14587 * @phba: pointer to lpfc hba data structure.
14589 * This routine is invoked to remove the memory region that
14590 * provided rpi via a bitmask.
14593 lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
14595 kfree(phba->sli4_hba.rpi_bmask);
14596 kfree(phba->sli4_hba.rpi_ids);
14597 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
14601 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
14602 * @phba: pointer to lpfc hba data structure.
14604 * This routine is invoked to remove the memory region that
14605 * provided rpi via a bitmask.
14608 lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp,
14609 void (*cmpl)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *arg)
14611 LPFC_MBOXQ_t *mboxq;
14612 struct lpfc_hba *phba = ndlp->phba;
14615 /* The port is notified of the header region via a mailbox command. */
14616 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14620 /* Post all rpi memory regions to the port. */
14621 lpfc_resume_rpi(mboxq, ndlp);
14623 mboxq->mbox_cmpl = cmpl;
14624 mboxq->context1 = arg;
14625 mboxq->context2 = ndlp;
14627 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14628 mboxq->vport = ndlp->vport;
14629 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
14630 if (rc == MBX_NOT_FINISHED) {
14631 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14632 "2010 Resume RPI Mailbox failed "
14633 "status %d, mbxStatus x%x\n", rc,
14634 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
14635 mempool_free(mboxq, phba->mbox_mem_pool);
14642 * lpfc_sli4_init_vpi - Initialize a vpi with the port
14643 * @vport: Pointer to the vport for which the vpi is being initialized
14645 * This routine is invoked to activate a vpi with the port.
14649 * -Evalue otherwise
14652 lpfc_sli4_init_vpi(struct lpfc_vport *vport)
14654 LPFC_MBOXQ_t *mboxq;
14656 int retval = MBX_SUCCESS;
14658 struct lpfc_hba *phba = vport->phba;
14659 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14662 lpfc_init_vpi(phba, mboxq, vport->vpi);
14663 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
14664 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
14665 if (rc != MBX_SUCCESS) {
14666 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
14667 "2022 INIT VPI Mailbox failed "
14668 "status %d, mbxStatus x%x\n", rc,
14669 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
14672 if (rc != MBX_TIMEOUT)
14673 mempool_free(mboxq, vport->phba->mbox_mem_pool);
14679 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
14680 * @phba: pointer to lpfc hba data structure.
14681 * @mboxq: Pointer to mailbox object.
14683 * This routine is invoked to manually add a single FCF record. The caller
14684 * must pass a completely initialized FCF_Record. This routine takes
14685 * care of the nonembedded mailbox operations.
14688 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
14691 union lpfc_sli4_cfg_shdr *shdr;
14692 uint32_t shdr_status, shdr_add_status;
14694 virt_addr = mboxq->sge_array->addr[0];
14695 /* The IOCTL status is embedded in the mailbox subheader. */
14696 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
14697 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14698 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14700 if ((shdr_status || shdr_add_status) &&
14701 (shdr_status != STATUS_FCF_IN_USE))
14702 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14703 "2558 ADD_FCF_RECORD mailbox failed with "
14704 "status x%x add_status x%x\n",
14705 shdr_status, shdr_add_status);
14707 lpfc_sli4_mbox_cmd_free(phba, mboxq);
14711 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
14712 * @phba: pointer to lpfc hba data structure.
14713 * @fcf_record: pointer to the initialized fcf record to add.
14715 * This routine is invoked to manually add a single FCF record. The caller
14716 * must pass a completely initialized FCF_Record. This routine takes
14717 * care of the nonembedded mailbox operations.
14720 lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
14723 LPFC_MBOXQ_t *mboxq;
14726 dma_addr_t phys_addr;
14727 struct lpfc_mbx_sge sge;
14728 uint32_t alloc_len, req_len;
14731 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14733 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14734 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
14738 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
14741 /* Allocate DMA memory and set up the non-embedded mailbox command */
14742 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
14743 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
14744 req_len, LPFC_SLI4_MBX_NEMBED);
14745 if (alloc_len < req_len) {
14746 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14747 "2523 Allocated DMA memory size (x%x) is "
14748 "less than the requested DMA memory "
14749 "size (x%x)\n", alloc_len, req_len);
14750 lpfc_sli4_mbox_cmd_free(phba, mboxq);
14755 * Get the first SGE entry from the non-embedded DMA memory. This
14756 * routine only uses a single SGE.
14758 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
14759 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
14760 virt_addr = mboxq->sge_array->addr[0];
14762 * Configure the FCF record for FCFI 0. This is the driver's
14763 * hardcoded default and gets used in nonFIP mode.
14765 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
14766 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
14767 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
14770 * Copy the fcf_index and the FCF Record Data. The data starts after
14771 * the FCoE header plus word10. The data copy needs to be endian
14774 bytep += sizeof(uint32_t);
14775 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
14776 mboxq->vport = phba->pport;
14777 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
14778 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
14779 if (rc == MBX_NOT_FINISHED) {
14780 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14781 "2515 ADD_FCF_RECORD mailbox failed with "
14782 "status 0x%x\n", rc);
14783 lpfc_sli4_mbox_cmd_free(phba, mboxq);
14792 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
14793 * @phba: pointer to lpfc hba data structure.
14794 * @fcf_record: pointer to the fcf record to write the default data.
14795 * @fcf_index: FCF table entry index.
14797 * This routine is invoked to build the driver's default FCF record. The
14798 * values used are hardcoded. This routine handles memory initialization.
14802 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
14803 struct fcf_record *fcf_record,
14804 uint16_t fcf_index)
14806 memset(fcf_record, 0, sizeof(struct fcf_record));
14807 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
14808 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
14809 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
14810 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
14811 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
14812 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
14813 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
14814 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
14815 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
14816 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
14817 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
14818 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
14819 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
14820 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
14821 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
14822 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
14823 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
14824 /* Set the VLAN bit map */
14825 if (phba->valid_vlan) {
14826 fcf_record->vlan_bitmap[phba->vlan_id / 8]
14827 = 1 << (phba->vlan_id % 8);
14832 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
14833 * @phba: pointer to lpfc hba data structure.
14834 * @fcf_index: FCF table entry offset.
14836 * This routine is invoked to scan the entire FCF table by reading FCF
14837 * record and processing it one at a time starting from the @fcf_index
14838 * for initial FCF discovery or fast FCF failover rediscovery.
14840 * Return 0 if the mailbox command is submitted successfully, none 0
14844 lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
14847 LPFC_MBOXQ_t *mboxq;
14849 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
14850 phba->fcoe_cvl_eventtag_attn = phba->fcoe_cvl_eventtag;
14851 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14853 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14854 "2000 Failed to allocate mbox for "
14857 goto fail_fcf_scan;
14859 /* Construct the read FCF record mailbox command */
14860 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
14863 goto fail_fcf_scan;
14865 /* Issue the mailbox command asynchronously */
14866 mboxq->vport = phba->pport;
14867 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
14869 spin_lock_irq(&phba->hbalock);
14870 phba->hba_flag |= FCF_TS_INPROG;
14871 spin_unlock_irq(&phba->hbalock);
14873 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
14874 if (rc == MBX_NOT_FINISHED)
14877 /* Reset eligible FCF count for new scan */
14878 if (fcf_index == LPFC_FCOE_FCF_GET_FIRST)
14879 phba->fcf.eligible_fcf_cnt = 0;
14885 lpfc_sli4_mbox_cmd_free(phba, mboxq);
14886 /* FCF scan failed, clear FCF_TS_INPROG flag */
14887 spin_lock_irq(&phba->hbalock);
14888 phba->hba_flag &= ~FCF_TS_INPROG;
14889 spin_unlock_irq(&phba->hbalock);
14895 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
14896 * @phba: pointer to lpfc hba data structure.
14897 * @fcf_index: FCF table entry offset.
14899 * This routine is invoked to read an FCF record indicated by @fcf_index
14900 * and to use it for FLOGI roundrobin FCF failover.
14902 * Return 0 if the mailbox command is submitted successfully, none 0
14906 lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
14909 LPFC_MBOXQ_t *mboxq;
14911 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14913 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
14914 "2763 Failed to allocate mbox for "
14917 goto fail_fcf_read;
14919 /* Construct the read FCF record mailbox command */
14920 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
14923 goto fail_fcf_read;
14925 /* Issue the mailbox command asynchronously */
14926 mboxq->vport = phba->pport;
14927 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
14928 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
14929 if (rc == MBX_NOT_FINISHED)
14935 if (error && mboxq)
14936 lpfc_sli4_mbox_cmd_free(phba, mboxq);
14941 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
14942 * @phba: pointer to lpfc hba data structure.
14943 * @fcf_index: FCF table entry offset.
14945 * This routine is invoked to read an FCF record indicated by @fcf_index to
14946 * determine whether it's eligible for FLOGI roundrobin failover list.
14948 * Return 0 if the mailbox command is submitted successfully, none 0
14952 lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
14955 LPFC_MBOXQ_t *mboxq;
14957 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14959 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
14960 "2758 Failed to allocate mbox for "
14963 goto fail_fcf_read;
14965 /* Construct the read FCF record mailbox command */
14966 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
14969 goto fail_fcf_read;
14971 /* Issue the mailbox command asynchronously */
14972 mboxq->vport = phba->pport;
14973 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
14974 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
14975 if (rc == MBX_NOT_FINISHED)
14981 if (error && mboxq)
14982 lpfc_sli4_mbox_cmd_free(phba, mboxq);
14987 * lpfc_check_next_fcf_pri
14988 * phba pointer to the lpfc_hba struct for this port.
14989 * This routine is called from the lpfc_sli4_fcf_rr_next_index_get
14990 * routine when the rr_bmask is empty. The FCF indecies are put into the
14991 * rr_bmask based on their priority level. Starting from the highest priority
14992 * to the lowest. The most likely FCF candidate will be in the highest
14993 * priority group. When this routine is called it searches the fcf_pri list for
14994 * next lowest priority group and repopulates the rr_bmask with only those
14997 * 1=success 0=failure
15000 lpfc_check_next_fcf_pri_level(struct lpfc_hba *phba)
15002 uint16_t next_fcf_pri;
15003 uint16_t last_index;
15004 struct lpfc_fcf_pri *fcf_pri;
15008 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
15009 LPFC_SLI4_FCF_TBL_INDX_MAX);
15010 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15011 "3060 Last IDX %d\n", last_index);
15012 if (list_empty(&phba->fcf.fcf_pri_list)) {
15013 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
15014 "3061 Last IDX %d\n", last_index);
15015 return 0; /* Empty rr list */
15019 * Clear the rr_bmask and set all of the bits that are at this
15022 memset(phba->fcf.fcf_rr_bmask, 0,
15023 sizeof(*phba->fcf.fcf_rr_bmask));
15024 spin_lock_irq(&phba->hbalock);
15025 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
15026 if (fcf_pri->fcf_rec.flag & LPFC_FCF_FLOGI_FAILED)
15029 * the 1st priority that has not FLOGI failed
15030 * will be the highest.
15033 next_fcf_pri = fcf_pri->fcf_rec.priority;
15034 spin_unlock_irq(&phba->hbalock);
15035 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
15036 rc = lpfc_sli4_fcf_rr_index_set(phba,
15037 fcf_pri->fcf_rec.fcf_index);
15041 spin_lock_irq(&phba->hbalock);
15044 * if next_fcf_pri was not set above and the list is not empty then
15045 * we have failed flogis on all of them. So reset flogi failed
15046 * and start at the begining.
15048 if (!next_fcf_pri && !list_empty(&phba->fcf.fcf_pri_list)) {
15049 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
15050 fcf_pri->fcf_rec.flag &= ~LPFC_FCF_FLOGI_FAILED;
15052 * the 1st priority that has not FLOGI failed
15053 * will be the highest.
15056 next_fcf_pri = fcf_pri->fcf_rec.priority;
15057 spin_unlock_irq(&phba->hbalock);
15058 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
15059 rc = lpfc_sli4_fcf_rr_index_set(phba,
15060 fcf_pri->fcf_rec.fcf_index);
15064 spin_lock_irq(&phba->hbalock);
15068 spin_unlock_irq(&phba->hbalock);
15073 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
15074 * @phba: pointer to lpfc hba data structure.
15076 * This routine is to get the next eligible FCF record index in a round
15077 * robin fashion. If the next eligible FCF record index equals to the
15078 * initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
15079 * shall be returned, otherwise, the next eligible FCF record's index
15080 * shall be returned.
15083 lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
15085 uint16_t next_fcf_index;
15087 /* Search start from next bit of currently registered FCF index */
15089 next_fcf_index = (phba->fcf.current_rec.fcf_indx + 1) %
15090 LPFC_SLI4_FCF_TBL_INDX_MAX;
15091 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
15092 LPFC_SLI4_FCF_TBL_INDX_MAX,
15095 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
15096 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
15098 * If we have wrapped then we need to clear the bits that
15099 * have been tested so that we can detect when we should
15100 * change the priority level.
15102 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
15103 LPFC_SLI4_FCF_TBL_INDX_MAX, 0);
15107 /* Check roundrobin failover list empty condition */
15108 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX ||
15109 next_fcf_index == phba->fcf.current_rec.fcf_indx) {
15111 * If next fcf index is not found check if there are lower
15112 * Priority level fcf's in the fcf_priority list.
15113 * Set up the rr_bmask with all of the avaiable fcf bits
15114 * at that level and continue the selection process.
15116 if (lpfc_check_next_fcf_pri_level(phba))
15117 goto next_priority;
15118 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
15119 "2844 No roundrobin failover FCF available\n");
15120 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX)
15121 return LPFC_FCOE_FCF_NEXT_NONE;
15123 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
15124 "3063 Only FCF available idx %d, flag %x\n",
15126 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag);
15127 return next_fcf_index;
15131 if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX &&
15132 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag &
15133 LPFC_FCF_FLOGI_FAILED)
15134 goto next_priority;
15136 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15137 "2845 Get next roundrobin failover FCF (x%x)\n",
15140 return next_fcf_index;
15144 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
15145 * @phba: pointer to lpfc hba data structure.
15147 * This routine sets the FCF record index in to the eligible bmask for
15148 * roundrobin failover search. It checks to make sure that the index
15149 * does not go beyond the range of the driver allocated bmask dimension
15150 * before setting the bit.
15152 * Returns 0 if the index bit successfully set, otherwise, it returns
15156 lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
15158 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
15159 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
15160 "2610 FCF (x%x) reached driver's book "
15161 "keeping dimension:x%x\n",
15162 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
15165 /* Set the eligible FCF record index bmask */
15166 set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
15168 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15169 "2790 Set FCF (x%x) to roundrobin FCF failover "
15170 "bmask\n", fcf_index);
15176 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
15177 * @phba: pointer to lpfc hba data structure.
15179 * This routine clears the FCF record index from the eligible bmask for
15180 * roundrobin failover search. It checks to make sure that the index
15181 * does not go beyond the range of the driver allocated bmask dimension
15182 * before clearing the bit.
15185 lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
15187 struct lpfc_fcf_pri *fcf_pri;
15188 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
15189 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
15190 "2762 FCF (x%x) reached driver's book "
15191 "keeping dimension:x%x\n",
15192 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
15195 /* Clear the eligible FCF record index bmask */
15196 spin_lock_irq(&phba->hbalock);
15197 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
15198 if (fcf_pri->fcf_rec.fcf_index == fcf_index) {
15199 list_del_init(&fcf_pri->list);
15203 spin_unlock_irq(&phba->hbalock);
15204 clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
15206 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15207 "2791 Clear FCF (x%x) from roundrobin failover "
15208 "bmask\n", fcf_index);
15212 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
15213 * @phba: pointer to lpfc hba data structure.
15215 * This routine is the completion routine for the rediscover FCF table mailbox
15216 * command. If the mailbox command returned failure, it will try to stop the
15217 * FCF rediscover wait timer.
15220 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
15222 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
15223 uint32_t shdr_status, shdr_add_status;
15225 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
15227 shdr_status = bf_get(lpfc_mbox_hdr_status,
15228 &redisc_fcf->header.cfg_shdr.response);
15229 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
15230 &redisc_fcf->header.cfg_shdr.response);
15231 if (shdr_status || shdr_add_status) {
15232 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
15233 "2746 Requesting for FCF rediscovery failed "
15234 "status x%x add_status x%x\n",
15235 shdr_status, shdr_add_status);
15236 if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
15237 spin_lock_irq(&phba->hbalock);
15238 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
15239 spin_unlock_irq(&phba->hbalock);
15241 * CVL event triggered FCF rediscover request failed,
15242 * last resort to re-try current registered FCF entry.
15244 lpfc_retry_pport_discovery(phba);
15246 spin_lock_irq(&phba->hbalock);
15247 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
15248 spin_unlock_irq(&phba->hbalock);
15250 * DEAD FCF event triggered FCF rediscover request
15251 * failed, last resort to fail over as a link down
15252 * to FCF registration.
15254 lpfc_sli4_fcf_dead_failthrough(phba);
15257 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15258 "2775 Start FCF rediscover quiescent timer\n");
15260 * Start FCF rediscovery wait timer for pending FCF
15261 * before rescan FCF record table.
15263 lpfc_fcf_redisc_wait_start_timer(phba);
15266 mempool_free(mbox, phba->mbox_mem_pool);
15270 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
15271 * @phba: pointer to lpfc hba data structure.
15273 * This routine is invoked to request for rediscovery of the entire FCF table
15277 lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
15279 LPFC_MBOXQ_t *mbox;
15280 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
15283 /* Cancel retry delay timers to all vports before FCF rediscover */
15284 lpfc_cancel_all_vport_retry_delay_timer(phba);
15286 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15288 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15289 "2745 Failed to allocate mbox for "
15290 "requesting FCF rediscover.\n");
15294 length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
15295 sizeof(struct lpfc_sli4_cfg_mhdr));
15296 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15297 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
15298 length, LPFC_SLI4_MBX_EMBED);
15300 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
15301 /* Set count to 0 for invalidating the entire FCF database */
15302 bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
15304 /* Issue the mailbox command asynchronously */
15305 mbox->vport = phba->pport;
15306 mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
15307 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
15309 if (rc == MBX_NOT_FINISHED) {
15310 mempool_free(mbox, phba->mbox_mem_pool);
15317 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
15318 * @phba: pointer to lpfc hba data structure.
15320 * This function is the failover routine as a last resort to the FCF DEAD
15321 * event when driver failed to perform fast FCF failover.
15324 lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
15326 uint32_t link_state;
15329 * Last resort as FCF DEAD event failover will treat this as
15330 * a link down, but save the link state because we don't want
15331 * it to be changed to Link Down unless it is already down.
15333 link_state = phba->link_state;
15334 lpfc_linkdown(phba);
15335 phba->link_state = link_state;
15337 /* Unregister FCF if no devices connected to it */
15338 lpfc_unregister_unused_fcf(phba);
15342 * lpfc_sli_get_config_region23 - Get sli3 port region 23 data.
15343 * @phba: pointer to lpfc hba data structure.
15344 * @rgn23_data: pointer to configure region 23 data.
15346 * This function gets SLI3 port configure region 23 data through memory dump
15347 * mailbox command. When it successfully retrieves data, the size of the data
15348 * will be returned, otherwise, 0 will be returned.
15351 lpfc_sli_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
15353 LPFC_MBOXQ_t *pmb = NULL;
15355 uint32_t offset = 0;
15361 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15363 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15364 "2600 failed to allocate mailbox memory\n");
15370 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
15371 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
15373 if (rc != MBX_SUCCESS) {
15374 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15375 "2601 failed to read config "
15376 "region 23, rc 0x%x Status 0x%x\n",
15377 rc, mb->mbxStatus);
15378 mb->un.varDmp.word_cnt = 0;
15381 * dump mem may return a zero when finished or we got a
15382 * mailbox error, either way we are done.
15384 if (mb->un.varDmp.word_cnt == 0)
15386 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
15387 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
15389 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
15390 rgn23_data + offset,
15391 mb->un.varDmp.word_cnt);
15392 offset += mb->un.varDmp.word_cnt;
15393 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
15395 mempool_free(pmb, phba->mbox_mem_pool);
15400 * lpfc_sli4_get_config_region23 - Get sli4 port region 23 data.
15401 * @phba: pointer to lpfc hba data structure.
15402 * @rgn23_data: pointer to configure region 23 data.
15404 * This function gets SLI4 port configure region 23 data through memory dump
15405 * mailbox command. When it successfully retrieves data, the size of the data
15406 * will be returned, otherwise, 0 will be returned.
15409 lpfc_sli4_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
15411 LPFC_MBOXQ_t *mboxq = NULL;
15412 struct lpfc_dmabuf *mp = NULL;
15413 struct lpfc_mqe *mqe;
15414 uint32_t data_length = 0;
15420 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15422 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15423 "3105 failed to allocate mailbox memory\n");
15427 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq))
15429 mqe = &mboxq->u.mqe;
15430 mp = (struct lpfc_dmabuf *) mboxq->context1;
15431 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
15434 data_length = mqe->un.mb_words[5];
15435 if (data_length == 0)
15437 if (data_length > DMP_RGN23_SIZE) {
15441 lpfc_sli_pcimem_bcopy((char *)mp->virt, rgn23_data, data_length);
15443 mempool_free(mboxq, phba->mbox_mem_pool);
15445 lpfc_mbuf_free(phba, mp->virt, mp->phys);
15448 return data_length;
15452 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
15453 * @phba: pointer to lpfc hba data structure.
15455 * This function read region 23 and parse TLV for port status to
15456 * decide if the user disaled the port. If the TLV indicates the
15457 * port is disabled, the hba_flag is set accordingly.
15460 lpfc_sli_read_link_ste(struct lpfc_hba *phba)
15462 uint8_t *rgn23_data = NULL;
15463 uint32_t if_type, data_size, sub_tlv_len, tlv_offset;
15464 uint32_t offset = 0;
15466 /* Get adapter Region 23 data */
15467 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
15471 if (phba->sli_rev < LPFC_SLI_REV4)
15472 data_size = lpfc_sli_get_config_region23(phba, rgn23_data);
15474 if_type = bf_get(lpfc_sli_intf_if_type,
15475 &phba->sli4_hba.sli_intf);
15476 if (if_type == LPFC_SLI_INTF_IF_TYPE_0)
15478 data_size = lpfc_sli4_get_config_region23(phba, rgn23_data);
15484 /* Check the region signature first */
15485 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
15486 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15487 "2619 Config region 23 has bad signature\n");
15492 /* Check the data structure version */
15493 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
15494 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15495 "2620 Config region 23 has bad version\n");
15500 /* Parse TLV entries in the region */
15501 while (offset < data_size) {
15502 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
15505 * If the TLV is not driver specific TLV or driver id is
15506 * not linux driver id, skip the record.
15508 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
15509 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
15510 (rgn23_data[offset + 3] != 0)) {
15511 offset += rgn23_data[offset + 1] * 4 + 4;
15515 /* Driver found a driver specific TLV in the config region */
15516 sub_tlv_len = rgn23_data[offset + 1] * 4;
15521 * Search for configured port state sub-TLV.
15523 while ((offset < data_size) &&
15524 (tlv_offset < sub_tlv_len)) {
15525 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
15530 if (rgn23_data[offset] != PORT_STE_TYPE) {
15531 offset += rgn23_data[offset + 1] * 4 + 4;
15532 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
15536 /* This HBA contains PORT_STE configured */
15537 if (!rgn23_data[offset + 2])
15538 phba->hba_flag |= LINK_DISABLED;
15550 * lpfc_wr_object - write an object to the firmware
15551 * @phba: HBA structure that indicates port to create a queue on.
15552 * @dmabuf_list: list of dmabufs to write to the port.
15553 * @size: the total byte value of the objects to write to the port.
15554 * @offset: the current offset to be used to start the transfer.
15556 * This routine will create a wr_object mailbox command to send to the port.
15557 * the mailbox command will be constructed using the dma buffers described in
15558 * @dmabuf_list to create a list of BDEs. This routine will fill in as many
15559 * BDEs that the imbedded mailbox can support. The @offset variable will be
15560 * used to indicate the starting offset of the transfer and will also return
15561 * the offset after the write object mailbox has completed. @size is used to
15562 * determine the end of the object and whether the eof bit should be set.
15564 * Return 0 is successful and offset will contain the the new offset to use
15565 * for the next write.
15566 * Return negative value for error cases.
15569 lpfc_wr_object(struct lpfc_hba *phba, struct list_head *dmabuf_list,
15570 uint32_t size, uint32_t *offset)
15572 struct lpfc_mbx_wr_object *wr_object;
15573 LPFC_MBOXQ_t *mbox;
15575 uint32_t shdr_status, shdr_add_status;
15577 union lpfc_sli4_cfg_shdr *shdr;
15578 struct lpfc_dmabuf *dmabuf;
15579 uint32_t written = 0;
15581 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15585 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
15586 LPFC_MBOX_OPCODE_WRITE_OBJECT,
15587 sizeof(struct lpfc_mbx_wr_object) -
15588 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
15590 wr_object = (struct lpfc_mbx_wr_object *)&mbox->u.mqe.un.wr_object;
15591 wr_object->u.request.write_offset = *offset;
15592 sprintf((uint8_t *)wr_object->u.request.object_name, "/");
15593 wr_object->u.request.object_name[0] =
15594 cpu_to_le32(wr_object->u.request.object_name[0]);
15595 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 0);
15596 list_for_each_entry(dmabuf, dmabuf_list, list) {
15597 if (i >= LPFC_MBX_WR_CONFIG_MAX_BDE || written >= size)
15599 wr_object->u.request.bde[i].addrLow = putPaddrLow(dmabuf->phys);
15600 wr_object->u.request.bde[i].addrHigh =
15601 putPaddrHigh(dmabuf->phys);
15602 if (written + SLI4_PAGE_SIZE >= size) {
15603 wr_object->u.request.bde[i].tus.f.bdeSize =
15605 written += (size - written);
15606 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 1);
15608 wr_object->u.request.bde[i].tus.f.bdeSize =
15610 written += SLI4_PAGE_SIZE;
15614 wr_object->u.request.bde_count = i;
15615 bf_set(lpfc_wr_object_write_length, &wr_object->u.request, written);
15616 if (!phba->sli4_hba.intr_enable)
15617 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15619 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
15620 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
15622 /* The IOCTL status is embedded in the mailbox subheader. */
15623 shdr = (union lpfc_sli4_cfg_shdr *) &wr_object->header.cfg_shdr;
15624 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15625 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15626 if (rc != MBX_TIMEOUT)
15627 mempool_free(mbox, phba->mbox_mem_pool);
15628 if (shdr_status || shdr_add_status || rc) {
15629 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15630 "3025 Write Object mailbox failed with "
15631 "status x%x add_status x%x, mbx status x%x\n",
15632 shdr_status, shdr_add_status, rc);
15635 *offset += wr_object->u.response.actual_write_length;
15640 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
15641 * @vport: pointer to vport data structure.
15643 * This function iterate through the mailboxq and clean up all REG_LOGIN
15644 * and REG_VPI mailbox commands associated with the vport. This function
15645 * is called when driver want to restart discovery of the vport due to
15646 * a Clear Virtual Link event.
15649 lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
15651 struct lpfc_hba *phba = vport->phba;
15652 LPFC_MBOXQ_t *mb, *nextmb;
15653 struct lpfc_dmabuf *mp;
15654 struct lpfc_nodelist *ndlp;
15655 struct lpfc_nodelist *act_mbx_ndlp = NULL;
15656 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
15657 LIST_HEAD(mbox_cmd_list);
15658 uint8_t restart_loop;
15660 /* Clean up internally queued mailbox commands with the vport */
15661 spin_lock_irq(&phba->hbalock);
15662 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
15663 if (mb->vport != vport)
15666 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
15667 (mb->u.mb.mbxCommand != MBX_REG_VPI))
15670 list_del(&mb->list);
15671 list_add_tail(&mb->list, &mbox_cmd_list);
15673 /* Clean up active mailbox command with the vport */
15674 mb = phba->sli.mbox_active;
15675 if (mb && (mb->vport == vport)) {
15676 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
15677 (mb->u.mb.mbxCommand == MBX_REG_VPI))
15678 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15679 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
15680 act_mbx_ndlp = (struct lpfc_nodelist *)mb->context2;
15681 /* Put reference count for delayed processing */
15682 act_mbx_ndlp = lpfc_nlp_get(act_mbx_ndlp);
15683 /* Unregister the RPI when mailbox complete */
15684 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
15687 /* Cleanup any mailbox completions which are not yet processed */
15690 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
15692 * If this mailox is already processed or it is
15693 * for another vport ignore it.
15695 if ((mb->vport != vport) ||
15696 (mb->mbox_flag & LPFC_MBX_IMED_UNREG))
15699 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
15700 (mb->u.mb.mbxCommand != MBX_REG_VPI))
15703 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15704 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
15705 ndlp = (struct lpfc_nodelist *)mb->context2;
15706 /* Unregister the RPI when mailbox complete */
15707 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
15709 spin_unlock_irq(&phba->hbalock);
15710 spin_lock(shost->host_lock);
15711 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
15712 spin_unlock(shost->host_lock);
15713 spin_lock_irq(&phba->hbalock);
15717 } while (restart_loop);
15719 spin_unlock_irq(&phba->hbalock);
15721 /* Release the cleaned-up mailbox commands */
15722 while (!list_empty(&mbox_cmd_list)) {
15723 list_remove_head(&mbox_cmd_list, mb, LPFC_MBOXQ_t, list);
15724 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
15725 mp = (struct lpfc_dmabuf *) (mb->context1);
15727 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
15730 ndlp = (struct lpfc_nodelist *) mb->context2;
15731 mb->context2 = NULL;
15733 spin_lock(shost->host_lock);
15734 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
15735 spin_unlock(shost->host_lock);
15736 lpfc_nlp_put(ndlp);
15739 mempool_free(mb, phba->mbox_mem_pool);
15742 /* Release the ndlp with the cleaned-up active mailbox command */
15743 if (act_mbx_ndlp) {
15744 spin_lock(shost->host_lock);
15745 act_mbx_ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
15746 spin_unlock(shost->host_lock);
15747 lpfc_nlp_put(act_mbx_ndlp);
15752 * lpfc_drain_txq - Drain the txq
15753 * @phba: Pointer to HBA context object.
15755 * This function attempt to submit IOCBs on the txq
15756 * to the adapter. For SLI4 adapters, the txq contains
15757 * ELS IOCBs that have been deferred because the there
15758 * are no SGLs. This congestion can occur with large
15759 * vport counts during node discovery.
15763 lpfc_drain_txq(struct lpfc_hba *phba)
15765 LIST_HEAD(completions);
15766 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
15767 struct lpfc_iocbq *piocbq = 0;
15768 unsigned long iflags = 0;
15769 char *fail_msg = NULL;
15770 struct lpfc_sglq *sglq;
15771 union lpfc_wqe wqe;
15773 spin_lock_irqsave(&phba->hbalock, iflags);
15774 if (pring->txq_cnt > pring->txq_max)
15775 pring->txq_max = pring->txq_cnt;
15777 spin_unlock_irqrestore(&phba->hbalock, iflags);
15779 while (pring->txq_cnt) {
15780 spin_lock_irqsave(&phba->hbalock, iflags);
15782 piocbq = lpfc_sli_ringtx_get(phba, pring);
15783 sglq = __lpfc_sli_get_sglq(phba, piocbq);
15785 __lpfc_sli_ringtx_put(phba, pring, piocbq);
15786 spin_unlock_irqrestore(&phba->hbalock, iflags);
15790 /* The txq_cnt out of sync. This should
15793 sglq = __lpfc_clear_active_sglq(phba,
15794 sglq->sli4_lxritag);
15795 spin_unlock_irqrestore(&phba->hbalock, iflags);
15796 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15797 "2823 txq empty and txq_cnt is %d\n ",
15803 /* The xri and iocb resources secured,
15804 * attempt to issue request
15806 piocbq->sli4_lxritag = sglq->sli4_lxritag;
15807 piocbq->sli4_xritag = sglq->sli4_xritag;
15808 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocbq, sglq))
15809 fail_msg = "to convert bpl to sgl";
15810 else if (lpfc_sli4_iocb2wqe(phba, piocbq, &wqe))
15811 fail_msg = "to convert iocb to wqe";
15812 else if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
15813 fail_msg = " - Wq is full";
15815 lpfc_sli_ringtxcmpl_put(phba, pring, piocbq);
15818 /* Failed means we can't issue and need to cancel */
15819 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15820 "2822 IOCB failed %s iotag 0x%x "
15823 piocbq->iotag, piocbq->sli4_xritag);
15824 list_add_tail(&piocbq->list, &completions);
15826 spin_unlock_irqrestore(&phba->hbalock, iflags);
15829 /* Cancel all the IOCBs that cannot be issued */
15830 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
15831 IOERR_SLI_ABORTED);
15833 return pring->txq_cnt;