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;
880 else if ((piocbq->iocb.ulpCommand == CMD_ELS_REQUEST64_CR) &&
881 (piocbq->iocb_flag & LPFC_IO_LIBDFC))
882 ndlp = piocbq->context_un.ndlp;
884 ndlp = piocbq->context1;
886 list_remove_head(lpfc_sgl_list, sglq, struct lpfc_sglq, list);
891 if (lpfc_test_rrq_active(phba, ndlp, sglq->sli4_lxritag)) {
892 /* This xri has an rrq outstanding for this DID.
893 * put it back in the list and get another xri.
895 list_add_tail(&sglq->list, lpfc_sgl_list);
897 list_remove_head(lpfc_sgl_list, sglq,
898 struct lpfc_sglq, list);
899 if (sglq == start_sglq) {
907 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
908 sglq->state = SGL_ALLOCATED;
914 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
915 * @phba: Pointer to HBA context object.
917 * This function is called with no lock held. This function
918 * allocates a new driver iocb object from the iocb pool. If the
919 * allocation is successful, it returns pointer to the newly
920 * allocated iocb object else it returns NULL.
923 lpfc_sli_get_iocbq(struct lpfc_hba *phba)
925 struct lpfc_iocbq * iocbq = NULL;
926 unsigned long iflags;
928 spin_lock_irqsave(&phba->hbalock, iflags);
929 iocbq = __lpfc_sli_get_iocbq(phba);
930 spin_unlock_irqrestore(&phba->hbalock, iflags);
935 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
936 * @phba: Pointer to HBA context object.
937 * @iocbq: Pointer to driver iocb object.
939 * This function is called with hbalock held to release driver
940 * iocb object to the iocb pool. The iotag in the iocb object
941 * does not change for each use of the iocb object. This function
942 * clears all other fields of the iocb object when it is freed.
943 * The sqlq structure that holds the xritag and phys and virtual
944 * mappings for the scatter gather list is retrieved from the
945 * active array of sglq. The get of the sglq pointer also clears
946 * the entry in the array. If the status of the IO indiactes that
947 * this IO was aborted then the sglq entry it put on the
948 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
949 * IO has good status or fails for any other reason then the sglq
950 * entry is added to the free list (lpfc_sgl_list).
953 __lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
955 struct lpfc_sglq *sglq;
956 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
957 unsigned long iflag = 0;
958 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
960 if (iocbq->sli4_xritag == NO_XRI)
963 sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_lxritag);
966 if ((iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) &&
967 (sglq->state != SGL_XRI_ABORTED)) {
968 spin_lock_irqsave(&phba->sli4_hba.abts_sgl_list_lock,
970 list_add(&sglq->list,
971 &phba->sli4_hba.lpfc_abts_els_sgl_list);
972 spin_unlock_irqrestore(
973 &phba->sli4_hba.abts_sgl_list_lock, iflag);
975 sglq->state = SGL_FREED;
977 list_add_tail(&sglq->list,
978 &phba->sli4_hba.lpfc_sgl_list);
980 /* Check if TXQ queue needs to be serviced */
982 lpfc_worker_wake_up(phba);
988 * Clean all volatile data fields, preserve iotag and node struct.
990 memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
991 iocbq->sli4_lxritag = NO_XRI;
992 iocbq->sli4_xritag = NO_XRI;
993 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
998 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
999 * @phba: Pointer to HBA context object.
1000 * @iocbq: Pointer to driver iocb object.
1002 * This function is called with hbalock held to release driver
1003 * iocb object to the iocb pool. The iotag in the iocb object
1004 * does not change for each use of the iocb object. This function
1005 * clears all other fields of the iocb object when it is freed.
1008 __lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1010 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1013 * Clean all volatile data fields, preserve iotag and node struct.
1015 memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1016 iocbq->sli4_xritag = NO_XRI;
1017 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1021 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
1022 * @phba: Pointer to HBA context object.
1023 * @iocbq: Pointer to driver iocb object.
1025 * This function is called with hbalock held to release driver
1026 * iocb object to the iocb pool. The iotag in the iocb object
1027 * does not change for each use of the iocb object. This function
1028 * clears all other fields of the iocb object when it is freed.
1031 __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1033 phba->__lpfc_sli_release_iocbq(phba, iocbq);
1038 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
1039 * @phba: Pointer to HBA context object.
1040 * @iocbq: Pointer to driver iocb object.
1042 * This function is called with no lock held to release the iocb to
1046 lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1048 unsigned long iflags;
1051 * Clean all volatile data fields, preserve iotag and node struct.
1053 spin_lock_irqsave(&phba->hbalock, iflags);
1054 __lpfc_sli_release_iocbq(phba, iocbq);
1055 spin_unlock_irqrestore(&phba->hbalock, iflags);
1059 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
1060 * @phba: Pointer to HBA context object.
1061 * @iocblist: List of IOCBs.
1062 * @ulpstatus: ULP status in IOCB command field.
1063 * @ulpWord4: ULP word-4 in IOCB command field.
1065 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
1066 * on the list by invoking the complete callback function associated with the
1067 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
1071 lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
1072 uint32_t ulpstatus, uint32_t ulpWord4)
1074 struct lpfc_iocbq *piocb;
1076 while (!list_empty(iocblist)) {
1077 list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
1079 if (!piocb->iocb_cmpl)
1080 lpfc_sli_release_iocbq(phba, piocb);
1082 piocb->iocb.ulpStatus = ulpstatus;
1083 piocb->iocb.un.ulpWord[4] = ulpWord4;
1084 (piocb->iocb_cmpl) (phba, piocb, piocb);
1091 * lpfc_sli_iocb_cmd_type - Get the iocb type
1092 * @iocb_cmnd: iocb command code.
1094 * This function is called by ring event handler function to get the iocb type.
1095 * This function translates the iocb command to an iocb command type used to
1096 * decide the final disposition of each completed IOCB.
1097 * The function returns
1098 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
1099 * LPFC_SOL_IOCB if it is a solicited iocb completion
1100 * LPFC_ABORT_IOCB if it is an abort iocb
1101 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
1103 * The caller is not required to hold any lock.
1105 static lpfc_iocb_type
1106 lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
1108 lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
1110 if (iocb_cmnd > CMD_MAX_IOCB_CMD)
1113 switch (iocb_cmnd) {
1114 case CMD_XMIT_SEQUENCE_CR:
1115 case CMD_XMIT_SEQUENCE_CX:
1116 case CMD_XMIT_BCAST_CN:
1117 case CMD_XMIT_BCAST_CX:
1118 case CMD_ELS_REQUEST_CR:
1119 case CMD_ELS_REQUEST_CX:
1120 case CMD_CREATE_XRI_CR:
1121 case CMD_CREATE_XRI_CX:
1122 case CMD_GET_RPI_CN:
1123 case CMD_XMIT_ELS_RSP_CX:
1124 case CMD_GET_RPI_CR:
1125 case CMD_FCP_IWRITE_CR:
1126 case CMD_FCP_IWRITE_CX:
1127 case CMD_FCP_IREAD_CR:
1128 case CMD_FCP_IREAD_CX:
1129 case CMD_FCP_ICMND_CR:
1130 case CMD_FCP_ICMND_CX:
1131 case CMD_FCP_TSEND_CX:
1132 case CMD_FCP_TRSP_CX:
1133 case CMD_FCP_TRECEIVE_CX:
1134 case CMD_FCP_AUTO_TRSP_CX:
1135 case CMD_ADAPTER_MSG:
1136 case CMD_ADAPTER_DUMP:
1137 case CMD_XMIT_SEQUENCE64_CR:
1138 case CMD_XMIT_SEQUENCE64_CX:
1139 case CMD_XMIT_BCAST64_CN:
1140 case CMD_XMIT_BCAST64_CX:
1141 case CMD_ELS_REQUEST64_CR:
1142 case CMD_ELS_REQUEST64_CX:
1143 case CMD_FCP_IWRITE64_CR:
1144 case CMD_FCP_IWRITE64_CX:
1145 case CMD_FCP_IREAD64_CR:
1146 case CMD_FCP_IREAD64_CX:
1147 case CMD_FCP_ICMND64_CR:
1148 case CMD_FCP_ICMND64_CX:
1149 case CMD_FCP_TSEND64_CX:
1150 case CMD_FCP_TRSP64_CX:
1151 case CMD_FCP_TRECEIVE64_CX:
1152 case CMD_GEN_REQUEST64_CR:
1153 case CMD_GEN_REQUEST64_CX:
1154 case CMD_XMIT_ELS_RSP64_CX:
1155 case DSSCMD_IWRITE64_CR:
1156 case DSSCMD_IWRITE64_CX:
1157 case DSSCMD_IREAD64_CR:
1158 case DSSCMD_IREAD64_CX:
1159 type = LPFC_SOL_IOCB;
1161 case CMD_ABORT_XRI_CN:
1162 case CMD_ABORT_XRI_CX:
1163 case CMD_CLOSE_XRI_CN:
1164 case CMD_CLOSE_XRI_CX:
1165 case CMD_XRI_ABORTED_CX:
1166 case CMD_ABORT_MXRI64_CN:
1167 case CMD_XMIT_BLS_RSP64_CX:
1168 type = LPFC_ABORT_IOCB;
1170 case CMD_RCV_SEQUENCE_CX:
1171 case CMD_RCV_ELS_REQ_CX:
1172 case CMD_RCV_SEQUENCE64_CX:
1173 case CMD_RCV_ELS_REQ64_CX:
1174 case CMD_ASYNC_STATUS:
1175 case CMD_IOCB_RCV_SEQ64_CX:
1176 case CMD_IOCB_RCV_ELS64_CX:
1177 case CMD_IOCB_RCV_CONT64_CX:
1178 case CMD_IOCB_RET_XRI64_CX:
1179 type = LPFC_UNSOL_IOCB;
1181 case CMD_IOCB_XMIT_MSEQ64_CR:
1182 case CMD_IOCB_XMIT_MSEQ64_CX:
1183 case CMD_IOCB_RCV_SEQ_LIST64_CX:
1184 case CMD_IOCB_RCV_ELS_LIST64_CX:
1185 case CMD_IOCB_CLOSE_EXTENDED_CN:
1186 case CMD_IOCB_ABORT_EXTENDED_CN:
1187 case CMD_IOCB_RET_HBQE64_CN:
1188 case CMD_IOCB_FCP_IBIDIR64_CR:
1189 case CMD_IOCB_FCP_IBIDIR64_CX:
1190 case CMD_IOCB_FCP_ITASKMGT64_CX:
1191 case CMD_IOCB_LOGENTRY_CN:
1192 case CMD_IOCB_LOGENTRY_ASYNC_CN:
1193 printk("%s - Unhandled SLI-3 Command x%x\n",
1194 __func__, iocb_cmnd);
1195 type = LPFC_UNKNOWN_IOCB;
1198 type = LPFC_UNKNOWN_IOCB;
1206 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
1207 * @phba: Pointer to HBA context object.
1209 * This function is called from SLI initialization code
1210 * to configure every ring of the HBA's SLI interface. The
1211 * caller is not required to hold any lock. This function issues
1212 * a config_ring mailbox command for each ring.
1213 * This function returns zero if successful else returns a negative
1217 lpfc_sli_ring_map(struct lpfc_hba *phba)
1219 struct lpfc_sli *psli = &phba->sli;
1224 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1228 phba->link_state = LPFC_INIT_MBX_CMDS;
1229 for (i = 0; i < psli->num_rings; i++) {
1230 lpfc_config_ring(phba, i, pmb);
1231 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
1232 if (rc != MBX_SUCCESS) {
1233 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1234 "0446 Adapter failed to init (%d), "
1235 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
1237 rc, pmbox->mbxCommand,
1238 pmbox->mbxStatus, i);
1239 phba->link_state = LPFC_HBA_ERROR;
1244 mempool_free(pmb, phba->mbox_mem_pool);
1249 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
1250 * @phba: Pointer to HBA context object.
1251 * @pring: Pointer to driver SLI ring object.
1252 * @piocb: Pointer to the driver iocb object.
1254 * This function is called with hbalock held. The function adds the
1255 * new iocb to txcmplq of the given ring. This function always returns
1256 * 0. If this function is called for ELS ring, this function checks if
1257 * there is a vport associated with the ELS command. This function also
1258 * starts els_tmofunc timer if this is an ELS command.
1261 lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1262 struct lpfc_iocbq *piocb)
1264 list_add_tail(&piocb->list, &pring->txcmplq);
1265 piocb->iocb_flag |= LPFC_IO_ON_TXCMPLQ;
1266 pring->txcmplq_cnt++;
1267 if (pring->txcmplq_cnt > pring->txcmplq_max)
1268 pring->txcmplq_max = pring->txcmplq_cnt;
1270 if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
1271 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
1272 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
1276 mod_timer(&piocb->vport->els_tmofunc,
1277 jiffies + HZ * (phba->fc_ratov << 1));
1285 * lpfc_sli_ringtx_get - Get first element of the txq
1286 * @phba: Pointer to HBA context object.
1287 * @pring: Pointer to driver SLI ring object.
1289 * This function is called with hbalock held to get next
1290 * iocb in txq of the given ring. If there is any iocb in
1291 * the txq, the function returns first iocb in the list after
1292 * removing the iocb from the list, else it returns NULL.
1295 lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1297 struct lpfc_iocbq *cmd_iocb;
1299 list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
1300 if (cmd_iocb != NULL)
1306 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
1307 * @phba: Pointer to HBA context object.
1308 * @pring: Pointer to driver SLI ring object.
1310 * This function is called with hbalock held and the caller must post the
1311 * iocb without releasing the lock. If the caller releases the lock,
1312 * iocb slot returned by the function is not guaranteed to be available.
1313 * The function returns pointer to the next available iocb slot if there
1314 * is available slot in the ring, else it returns NULL.
1315 * If the get index of the ring is ahead of the put index, the function
1316 * will post an error attention event to the worker thread to take the
1317 * HBA to offline state.
1320 lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1322 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
1323 uint32_t max_cmd_idx = pring->numCiocb;
1324 if ((pring->next_cmdidx == pring->cmdidx) &&
1325 (++pring->next_cmdidx >= max_cmd_idx))
1326 pring->next_cmdidx = 0;
1328 if (unlikely(pring->local_getidx == pring->next_cmdidx)) {
1330 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
1332 if (unlikely(pring->local_getidx >= max_cmd_idx)) {
1333 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1334 "0315 Ring %d issue: portCmdGet %d "
1335 "is bigger than cmd ring %d\n",
1337 pring->local_getidx, max_cmd_idx);
1339 phba->link_state = LPFC_HBA_ERROR;
1341 * All error attention handlers are posted to
1344 phba->work_ha |= HA_ERATT;
1345 phba->work_hs = HS_FFER3;
1347 lpfc_worker_wake_up(phba);
1352 if (pring->local_getidx == pring->next_cmdidx)
1356 return lpfc_cmd_iocb(phba, pring);
1360 * lpfc_sli_next_iotag - Get an iotag for the iocb
1361 * @phba: Pointer to HBA context object.
1362 * @iocbq: Pointer to driver iocb object.
1364 * This function gets an iotag for the iocb. If there is no unused iotag and
1365 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
1366 * array and assigns a new iotag.
1367 * The function returns the allocated iotag if successful, else returns zero.
1368 * Zero is not a valid iotag.
1369 * The caller is not required to hold any lock.
1372 lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1374 struct lpfc_iocbq **new_arr;
1375 struct lpfc_iocbq **old_arr;
1377 struct lpfc_sli *psli = &phba->sli;
1380 spin_lock_irq(&phba->hbalock);
1381 iotag = psli->last_iotag;
1382 if(++iotag < psli->iocbq_lookup_len) {
1383 psli->last_iotag = iotag;
1384 psli->iocbq_lookup[iotag] = iocbq;
1385 spin_unlock_irq(&phba->hbalock);
1386 iocbq->iotag = iotag;
1388 } else if (psli->iocbq_lookup_len < (0xffff
1389 - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
1390 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
1391 spin_unlock_irq(&phba->hbalock);
1392 new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *),
1395 spin_lock_irq(&phba->hbalock);
1396 old_arr = psli->iocbq_lookup;
1397 if (new_len <= psli->iocbq_lookup_len) {
1398 /* highly unprobable case */
1400 iotag = psli->last_iotag;
1401 if(++iotag < psli->iocbq_lookup_len) {
1402 psli->last_iotag = iotag;
1403 psli->iocbq_lookup[iotag] = iocbq;
1404 spin_unlock_irq(&phba->hbalock);
1405 iocbq->iotag = iotag;
1408 spin_unlock_irq(&phba->hbalock);
1411 if (psli->iocbq_lookup)
1412 memcpy(new_arr, old_arr,
1413 ((psli->last_iotag + 1) *
1414 sizeof (struct lpfc_iocbq *)));
1415 psli->iocbq_lookup = new_arr;
1416 psli->iocbq_lookup_len = new_len;
1417 psli->last_iotag = iotag;
1418 psli->iocbq_lookup[iotag] = iocbq;
1419 spin_unlock_irq(&phba->hbalock);
1420 iocbq->iotag = iotag;
1425 spin_unlock_irq(&phba->hbalock);
1427 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
1428 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1435 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
1436 * @phba: Pointer to HBA context object.
1437 * @pring: Pointer to driver SLI ring object.
1438 * @iocb: Pointer to iocb slot in the ring.
1439 * @nextiocb: Pointer to driver iocb object which need to be
1440 * posted to firmware.
1442 * This function is called with hbalock held to post a new iocb to
1443 * the firmware. This function copies the new iocb to ring iocb slot and
1444 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1445 * a completion call back for this iocb else the function will free the
1449 lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1450 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
1455 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
1458 if (pring->ringno == LPFC_ELS_RING) {
1459 lpfc_debugfs_slow_ring_trc(phba,
1460 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1461 *(((uint32_t *) &nextiocb->iocb) + 4),
1462 *(((uint32_t *) &nextiocb->iocb) + 6),
1463 *(((uint32_t *) &nextiocb->iocb) + 7));
1467 * Issue iocb command to adapter
1469 lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
1471 pring->stats.iocb_cmd++;
1474 * If there is no completion routine to call, we can release the
1475 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1476 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1478 if (nextiocb->iocb_cmpl)
1479 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
1481 __lpfc_sli_release_iocbq(phba, nextiocb);
1484 * Let the HBA know what IOCB slot will be the next one the
1485 * driver will put a command into.
1487 pring->cmdidx = pring->next_cmdidx;
1488 writel(pring->cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
1492 * lpfc_sli_update_full_ring - Update the chip attention register
1493 * @phba: Pointer to HBA context object.
1494 * @pring: Pointer to driver SLI ring object.
1496 * The caller is not required to hold any lock for calling this function.
1497 * This function updates the chip attention bits for the ring to inform firmware
1498 * that there are pending work to be done for this ring and requests an
1499 * interrupt when there is space available in the ring. This function is
1500 * called when the driver is unable to post more iocbs to the ring due
1501 * to unavailability of space in the ring.
1504 lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1506 int ringno = pring->ringno;
1508 pring->flag |= LPFC_CALL_RING_AVAILABLE;
1513 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1514 * The HBA will tell us when an IOCB entry is available.
1516 writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
1517 readl(phba->CAregaddr); /* flush */
1519 pring->stats.iocb_cmd_full++;
1523 * lpfc_sli_update_ring - Update chip attention register
1524 * @phba: Pointer to HBA context object.
1525 * @pring: Pointer to driver SLI ring object.
1527 * This function updates the chip attention register bit for the
1528 * given ring to inform HBA that there is more work to be done
1529 * in this ring. The caller is not required to hold any lock.
1532 lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1534 int ringno = pring->ringno;
1537 * Tell the HBA that there is work to do in this ring.
1539 if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
1541 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
1542 readl(phba->CAregaddr); /* flush */
1547 * lpfc_sli_resume_iocb - Process iocbs in the txq
1548 * @phba: Pointer to HBA context object.
1549 * @pring: Pointer to driver SLI ring object.
1551 * This function is called with hbalock held to post pending iocbs
1552 * in the txq to the firmware. This function is called when driver
1553 * detects space available in the ring.
1556 lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1559 struct lpfc_iocbq *nextiocb;
1563 * (a) there is anything on the txq to send
1565 * (c) link attention events can be processed (fcp ring only)
1566 * (d) IOCB processing is not blocked by the outstanding mbox command.
1568 if (pring->txq_cnt &&
1569 lpfc_is_link_up(phba) &&
1570 (pring->ringno != phba->sli.fcp_ring ||
1571 phba->sli.sli_flag & LPFC_PROCESS_LA)) {
1573 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
1574 (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
1575 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
1578 lpfc_sli_update_ring(phba, pring);
1580 lpfc_sli_update_full_ring(phba, pring);
1587 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
1588 * @phba: Pointer to HBA context object.
1589 * @hbqno: HBQ number.
1591 * This function is called with hbalock held to get the next
1592 * available slot for the given HBQ. If there is free slot
1593 * available for the HBQ it will return pointer to the next available
1594 * HBQ entry else it will return NULL.
1596 static struct lpfc_hbq_entry *
1597 lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
1599 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1601 if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
1602 ++hbqp->next_hbqPutIdx >= hbqp->entry_count)
1603 hbqp->next_hbqPutIdx = 0;
1605 if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
1606 uint32_t raw_index = phba->hbq_get[hbqno];
1607 uint32_t getidx = le32_to_cpu(raw_index);
1609 hbqp->local_hbqGetIdx = getidx;
1611 if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
1612 lpfc_printf_log(phba, KERN_ERR,
1613 LOG_SLI | LOG_VPORT,
1614 "1802 HBQ %d: local_hbqGetIdx "
1615 "%u is > than hbqp->entry_count %u\n",
1616 hbqno, hbqp->local_hbqGetIdx,
1619 phba->link_state = LPFC_HBA_ERROR;
1623 if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
1627 return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
1632 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
1633 * @phba: Pointer to HBA context object.
1635 * This function is called with no lock held to free all the
1636 * hbq buffers while uninitializing the SLI interface. It also
1637 * frees the HBQ buffers returned by the firmware but not yet
1638 * processed by the upper layers.
1641 lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
1643 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
1644 struct hbq_dmabuf *hbq_buf;
1645 unsigned long flags;
1649 hbq_count = lpfc_sli_hbq_count();
1650 /* Return all memory used by all HBQs */
1651 spin_lock_irqsave(&phba->hbalock, flags);
1652 for (i = 0; i < hbq_count; ++i) {
1653 list_for_each_entry_safe(dmabuf, next_dmabuf,
1654 &phba->hbqs[i].hbq_buffer_list, list) {
1655 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1656 list_del(&hbq_buf->dbuf.list);
1657 (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
1659 phba->hbqs[i].buffer_count = 0;
1661 /* Return all HBQ buffer that are in-fly */
1662 list_for_each_entry_safe(dmabuf, next_dmabuf, &phba->rb_pend_list,
1664 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1665 list_del(&hbq_buf->dbuf.list);
1666 if (hbq_buf->tag == -1) {
1667 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1670 hbqno = hbq_buf->tag >> 16;
1671 if (hbqno >= LPFC_MAX_HBQS)
1672 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1675 (phba->hbqs[hbqno].hbq_free_buffer)(phba,
1680 /* Mark the HBQs not in use */
1681 phba->hbq_in_use = 0;
1682 spin_unlock_irqrestore(&phba->hbalock, flags);
1686 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
1687 * @phba: Pointer to HBA context object.
1688 * @hbqno: HBQ number.
1689 * @hbq_buf: Pointer to HBQ buffer.
1691 * This function is called with the hbalock held to post a
1692 * hbq buffer to the firmware. If the function finds an empty
1693 * slot in the HBQ, it will post the buffer. The function will return
1694 * pointer to the hbq entry if it successfully post the buffer
1695 * else it will return NULL.
1698 lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
1699 struct hbq_dmabuf *hbq_buf)
1701 return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
1705 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
1706 * @phba: Pointer to HBA context object.
1707 * @hbqno: HBQ number.
1708 * @hbq_buf: Pointer to HBQ buffer.
1710 * This function is called with the hbalock held to post a hbq buffer to the
1711 * firmware. If the function finds an empty slot in the HBQ, it will post the
1712 * buffer and place it on the hbq_buffer_list. The function will return zero if
1713 * it successfully post the buffer else it will return an error.
1716 lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
1717 struct hbq_dmabuf *hbq_buf)
1719 struct lpfc_hbq_entry *hbqe;
1720 dma_addr_t physaddr = hbq_buf->dbuf.phys;
1722 /* Get next HBQ entry slot to use */
1723 hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
1725 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1727 hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
1728 hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
1729 hbqe->bde.tus.f.bdeSize = hbq_buf->size;
1730 hbqe->bde.tus.f.bdeFlags = 0;
1731 hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
1732 hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
1734 hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
1735 writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
1737 readl(phba->hbq_put + hbqno);
1738 list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
1745 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
1746 * @phba: Pointer to HBA context object.
1747 * @hbqno: HBQ number.
1748 * @hbq_buf: Pointer to HBQ buffer.
1750 * This function is called with the hbalock held to post an RQE to the SLI4
1751 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
1752 * the hbq_buffer_list and return zero, otherwise it will return an error.
1755 lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
1756 struct hbq_dmabuf *hbq_buf)
1759 struct lpfc_rqe hrqe;
1760 struct lpfc_rqe drqe;
1762 hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
1763 hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
1764 drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
1765 drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
1766 rc = lpfc_sli4_rq_put(phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
1771 list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
1775 /* HBQ for ELS and CT traffic. */
1776 static struct lpfc_hbq_init lpfc_els_hbq = {
1781 .ring_mask = (1 << LPFC_ELS_RING),
1787 /* HBQ for the extra ring if needed */
1788 static struct lpfc_hbq_init lpfc_extra_hbq = {
1793 .ring_mask = (1 << LPFC_EXTRA_RING),
1800 struct lpfc_hbq_init *lpfc_hbq_defs[] = {
1806 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
1807 * @phba: Pointer to HBA context object.
1808 * @hbqno: HBQ number.
1809 * @count: Number of HBQ buffers to be posted.
1811 * This function is called with no lock held to post more hbq buffers to the
1812 * given HBQ. The function returns the number of HBQ buffers successfully
1816 lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
1818 uint32_t i, posted = 0;
1819 unsigned long flags;
1820 struct hbq_dmabuf *hbq_buffer;
1821 LIST_HEAD(hbq_buf_list);
1822 if (!phba->hbqs[hbqno].hbq_alloc_buffer)
1825 if ((phba->hbqs[hbqno].buffer_count + count) >
1826 lpfc_hbq_defs[hbqno]->entry_count)
1827 count = lpfc_hbq_defs[hbqno]->entry_count -
1828 phba->hbqs[hbqno].buffer_count;
1831 /* Allocate HBQ entries */
1832 for (i = 0; i < count; i++) {
1833 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
1836 list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
1838 /* Check whether HBQ is still in use */
1839 spin_lock_irqsave(&phba->hbalock, flags);
1840 if (!phba->hbq_in_use)
1842 while (!list_empty(&hbq_buf_list)) {
1843 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1845 hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
1847 if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
1848 phba->hbqs[hbqno].buffer_count++;
1851 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1853 spin_unlock_irqrestore(&phba->hbalock, flags);
1856 spin_unlock_irqrestore(&phba->hbalock, flags);
1857 while (!list_empty(&hbq_buf_list)) {
1858 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1860 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1866 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
1867 * @phba: Pointer to HBA context object.
1870 * This function posts more buffers to the HBQ. This function
1871 * is called with no lock held. The function returns the number of HBQ entries
1872 * successfully allocated.
1875 lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
1877 if (phba->sli_rev == LPFC_SLI_REV4)
1880 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1881 lpfc_hbq_defs[qno]->add_count);
1885 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
1886 * @phba: Pointer to HBA context object.
1887 * @qno: HBQ queue number.
1889 * This function is called from SLI initialization code path with
1890 * no lock held to post initial HBQ buffers to firmware. The
1891 * function returns the number of HBQ entries successfully allocated.
1894 lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
1896 if (phba->sli_rev == LPFC_SLI_REV4)
1897 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1898 lpfc_hbq_defs[qno]->entry_count);
1900 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1901 lpfc_hbq_defs[qno]->init_count);
1905 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
1906 * @phba: Pointer to HBA context object.
1907 * @hbqno: HBQ number.
1909 * This function removes the first hbq buffer on an hbq list and returns a
1910 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
1912 static struct hbq_dmabuf *
1913 lpfc_sli_hbqbuf_get(struct list_head *rb_list)
1915 struct lpfc_dmabuf *d_buf;
1917 list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
1920 return container_of(d_buf, struct hbq_dmabuf, dbuf);
1924 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
1925 * @phba: Pointer to HBA context object.
1926 * @tag: Tag of the hbq buffer.
1928 * This function is called with hbalock held. This function searches
1929 * for the hbq buffer associated with the given tag in the hbq buffer
1930 * list. If it finds the hbq buffer, it returns the hbq_buffer other wise
1933 static struct hbq_dmabuf *
1934 lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
1936 struct lpfc_dmabuf *d_buf;
1937 struct hbq_dmabuf *hbq_buf;
1941 if (hbqno >= LPFC_MAX_HBQS)
1944 spin_lock_irq(&phba->hbalock);
1945 list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
1946 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
1947 if (hbq_buf->tag == tag) {
1948 spin_unlock_irq(&phba->hbalock);
1952 spin_unlock_irq(&phba->hbalock);
1953 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT,
1954 "1803 Bad hbq tag. Data: x%x x%x\n",
1955 tag, phba->hbqs[tag >> 16].buffer_count);
1960 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
1961 * @phba: Pointer to HBA context object.
1962 * @hbq_buffer: Pointer to HBQ buffer.
1964 * This function is called with hbalock. This function gives back
1965 * the hbq buffer to firmware. If the HBQ does not have space to
1966 * post the buffer, it will free the buffer.
1969 lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
1974 hbqno = hbq_buffer->tag >> 16;
1975 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
1976 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1981 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
1982 * @mbxCommand: mailbox command code.
1984 * This function is called by the mailbox event handler function to verify
1985 * that the completed mailbox command is a legitimate mailbox command. If the
1986 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
1987 * and the mailbox event handler will take the HBA offline.
1990 lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
1994 switch (mbxCommand) {
1998 case MBX_WRITE_VPARMS:
1999 case MBX_RUN_BIU_DIAG:
2002 case MBX_CONFIG_LINK:
2003 case MBX_CONFIG_RING:
2004 case MBX_RESET_RING:
2005 case MBX_READ_CONFIG:
2006 case MBX_READ_RCONFIG:
2007 case MBX_READ_SPARM:
2008 case MBX_READ_STATUS:
2012 case MBX_READ_LNK_STAT:
2014 case MBX_UNREG_LOGIN:
2016 case MBX_DUMP_MEMORY:
2017 case MBX_DUMP_CONTEXT:
2020 case MBX_UPDATE_CFG:
2022 case MBX_DEL_LD_ENTRY:
2023 case MBX_RUN_PROGRAM:
2025 case MBX_SET_VARIABLE:
2026 case MBX_UNREG_D_ID:
2027 case MBX_KILL_BOARD:
2028 case MBX_CONFIG_FARP:
2031 case MBX_RUN_BIU_DIAG64:
2032 case MBX_CONFIG_PORT:
2033 case MBX_READ_SPARM64:
2034 case MBX_READ_RPI64:
2035 case MBX_REG_LOGIN64:
2036 case MBX_READ_TOPOLOGY:
2039 case MBX_LOAD_EXP_ROM:
2040 case MBX_ASYNCEVT_ENABLE:
2044 case MBX_PORT_CAPABILITIES:
2045 case MBX_PORT_IOV_CONTROL:
2046 case MBX_SLI4_CONFIG:
2047 case MBX_SLI4_REQ_FTRS:
2049 case MBX_UNREG_FCFI:
2054 case MBX_RESUME_RPI:
2055 case MBX_READ_EVENT_LOG_STATUS:
2056 case MBX_READ_EVENT_LOG:
2057 case MBX_SECURITY_MGMT:
2069 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
2070 * @phba: Pointer to HBA context object.
2071 * @pmboxq: Pointer to mailbox command.
2073 * This is completion handler function for mailbox commands issued from
2074 * lpfc_sli_issue_mbox_wait function. This function is called by the
2075 * mailbox event handler function with no lock held. This function
2076 * will wake up thread waiting on the wait queue pointed by context1
2080 lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
2082 wait_queue_head_t *pdone_q;
2083 unsigned long drvr_flag;
2086 * If pdone_q is empty, the driver thread gave up waiting and
2087 * continued running.
2089 pmboxq->mbox_flag |= LPFC_MBX_WAKE;
2090 spin_lock_irqsave(&phba->hbalock, drvr_flag);
2091 pdone_q = (wait_queue_head_t *) pmboxq->context1;
2093 wake_up_interruptible(pdone_q);
2094 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
2100 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
2101 * @phba: Pointer to HBA context object.
2102 * @pmb: Pointer to mailbox object.
2104 * This function is the default mailbox completion handler. It
2105 * frees the memory resources associated with the completed mailbox
2106 * command. If the completed command is a REG_LOGIN mailbox command,
2107 * this function will issue a UREG_LOGIN to re-claim the RPI.
2110 lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2112 struct lpfc_vport *vport = pmb->vport;
2113 struct lpfc_dmabuf *mp;
2114 struct lpfc_nodelist *ndlp;
2115 struct Scsi_Host *shost;
2119 mp = (struct lpfc_dmabuf *) (pmb->context1);
2122 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2127 * If a REG_LOGIN succeeded after node is destroyed or node
2128 * is in re-discovery driver need to cleanup the RPI.
2130 if (!(phba->pport->load_flag & FC_UNLOADING) &&
2131 pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
2132 !pmb->u.mb.mbxStatus) {
2133 rpi = pmb->u.mb.un.varWords[0];
2134 vpi = pmb->u.mb.un.varRegLogin.vpi;
2135 lpfc_unreg_login(phba, vpi, rpi, pmb);
2136 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2137 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2138 if (rc != MBX_NOT_FINISHED)
2142 if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) &&
2143 !(phba->pport->load_flag & FC_UNLOADING) &&
2144 !pmb->u.mb.mbxStatus) {
2145 shost = lpfc_shost_from_vport(vport);
2146 spin_lock_irq(shost->host_lock);
2147 vport->vpi_state |= LPFC_VPI_REGISTERED;
2148 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
2149 spin_unlock_irq(shost->host_lock);
2152 if (pmb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
2153 ndlp = (struct lpfc_nodelist *)pmb->context2;
2155 pmb->context2 = NULL;
2158 /* Check security permission status on INIT_LINK mailbox command */
2159 if ((pmb->u.mb.mbxCommand == MBX_INIT_LINK) &&
2160 (pmb->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
2161 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2162 "2860 SLI authentication is required "
2163 "for INIT_LINK but has not done yet\n");
2165 if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
2166 lpfc_sli4_mbox_cmd_free(phba, pmb);
2168 mempool_free(pmb, phba->mbox_mem_pool);
2172 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
2173 * @phba: Pointer to HBA context object.
2175 * This function is called with no lock held. This function processes all
2176 * the completed mailbox commands and gives it to upper layers. The interrupt
2177 * service routine processes mailbox completion interrupt and adds completed
2178 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
2179 * Worker thread call lpfc_sli_handle_mb_event, which will return the
2180 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
2181 * function returns the mailbox commands to the upper layer by calling the
2182 * completion handler function of each mailbox.
2185 lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
2192 phba->sli.slistat.mbox_event++;
2194 /* Get all completed mailboxe buffers into the cmplq */
2195 spin_lock_irq(&phba->hbalock);
2196 list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
2197 spin_unlock_irq(&phba->hbalock);
2199 /* Get a Mailbox buffer to setup mailbox commands for callback */
2201 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
2207 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
2209 lpfc_debugfs_disc_trc(pmb->vport,
2210 LPFC_DISC_TRC_MBOX_VPORT,
2211 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
2212 (uint32_t)pmbox->mbxCommand,
2213 pmbox->un.varWords[0],
2214 pmbox->un.varWords[1]);
2217 lpfc_debugfs_disc_trc(phba->pport,
2219 "MBOX cmpl: cmd:x%x mb:x%x x%x",
2220 (uint32_t)pmbox->mbxCommand,
2221 pmbox->un.varWords[0],
2222 pmbox->un.varWords[1]);
2227 * It is a fatal error if unknown mbox command completion.
2229 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
2231 /* Unknown mailbox command compl */
2232 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2233 "(%d):0323 Unknown Mailbox command "
2234 "x%x (x%x/x%x) Cmpl\n",
2235 pmb->vport ? pmb->vport->vpi : 0,
2237 lpfc_sli_config_mbox_subsys_get(phba,
2239 lpfc_sli_config_mbox_opcode_get(phba,
2241 phba->link_state = LPFC_HBA_ERROR;
2242 phba->work_hs = HS_FFER3;
2243 lpfc_handle_eratt(phba);
2247 if (pmbox->mbxStatus) {
2248 phba->sli.slistat.mbox_stat_err++;
2249 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
2250 /* Mbox cmd cmpl error - RETRYing */
2251 lpfc_printf_log(phba, KERN_INFO,
2253 "(%d):0305 Mbox cmd cmpl "
2254 "error - RETRYing Data: x%x "
2255 "(x%x/x%x) x%x x%x x%x\n",
2256 pmb->vport ? pmb->vport->vpi : 0,
2258 lpfc_sli_config_mbox_subsys_get(phba,
2260 lpfc_sli_config_mbox_opcode_get(phba,
2263 pmbox->un.varWords[0],
2264 pmb->vport->port_state);
2265 pmbox->mbxStatus = 0;
2266 pmbox->mbxOwner = OWN_HOST;
2267 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2268 if (rc != MBX_NOT_FINISHED)
2273 /* Mailbox cmd <cmd> Cmpl <cmpl> */
2274 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
2275 "(%d):0307 Mailbox cmd x%x (x%x/x%x) Cmpl x%p "
2276 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n",
2277 pmb->vport ? pmb->vport->vpi : 0,
2279 lpfc_sli_config_mbox_subsys_get(phba, pmb),
2280 lpfc_sli_config_mbox_opcode_get(phba, pmb),
2282 *((uint32_t *) pmbox),
2283 pmbox->un.varWords[0],
2284 pmbox->un.varWords[1],
2285 pmbox->un.varWords[2],
2286 pmbox->un.varWords[3],
2287 pmbox->un.varWords[4],
2288 pmbox->un.varWords[5],
2289 pmbox->un.varWords[6],
2290 pmbox->un.varWords[7]);
2293 pmb->mbox_cmpl(phba,pmb);
2299 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
2300 * @phba: Pointer to HBA context object.
2301 * @pring: Pointer to driver SLI ring object.
2304 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
2305 * is set in the tag the buffer is posted for a particular exchange,
2306 * the function will return the buffer without replacing the buffer.
2307 * If the buffer is for unsolicited ELS or CT traffic, this function
2308 * returns the buffer and also posts another buffer to the firmware.
2310 static struct lpfc_dmabuf *
2311 lpfc_sli_get_buff(struct lpfc_hba *phba,
2312 struct lpfc_sli_ring *pring,
2315 struct hbq_dmabuf *hbq_entry;
2317 if (tag & QUE_BUFTAG_BIT)
2318 return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
2319 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
2322 return &hbq_entry->dbuf;
2326 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
2327 * @phba: Pointer to HBA context object.
2328 * @pring: Pointer to driver SLI ring object.
2329 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
2330 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
2331 * @fch_type: the type for the first frame of the sequence.
2333 * This function is called with no lock held. This function uses the r_ctl and
2334 * type of the received sequence to find the correct callback function to call
2335 * to process the sequence.
2338 lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2339 struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
2344 /* unSolicited Responses */
2345 if (pring->prt[0].profile) {
2346 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
2347 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
2351 /* We must search, based on rctl / type
2352 for the right routine */
2353 for (i = 0; i < pring->num_mask; i++) {
2354 if ((pring->prt[i].rctl == fch_r_ctl) &&
2355 (pring->prt[i].type == fch_type)) {
2356 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
2357 (pring->prt[i].lpfc_sli_rcv_unsol_event)
2358 (phba, pring, saveq);
2366 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
2367 * @phba: Pointer to HBA context object.
2368 * @pring: Pointer to driver SLI ring object.
2369 * @saveq: Pointer to the unsolicited iocb.
2371 * This function is called with no lock held by the ring event handler
2372 * when there is an unsolicited iocb posted to the response ring by the
2373 * firmware. This function gets the buffer associated with the iocbs
2374 * and calls the event handler for the ring. This function handles both
2375 * qring buffers and hbq buffers.
2376 * When the function returns 1 the caller can free the iocb object otherwise
2377 * upper layer functions will free the iocb objects.
2380 lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2381 struct lpfc_iocbq *saveq)
2385 uint32_t Rctl, Type;
2387 struct lpfc_iocbq *iocbq;
2388 struct lpfc_dmabuf *dmzbuf;
2391 irsp = &(saveq->iocb);
2393 if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
2394 if (pring->lpfc_sli_rcv_async_status)
2395 pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
2397 lpfc_printf_log(phba,
2400 "0316 Ring %d handler: unexpected "
2401 "ASYNC_STATUS iocb received evt_code "
2404 irsp->un.asyncstat.evt_code);
2408 if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
2409 (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
2410 if (irsp->ulpBdeCount > 0) {
2411 dmzbuf = lpfc_sli_get_buff(phba, pring,
2412 irsp->un.ulpWord[3]);
2413 lpfc_in_buf_free(phba, dmzbuf);
2416 if (irsp->ulpBdeCount > 1) {
2417 dmzbuf = lpfc_sli_get_buff(phba, pring,
2418 irsp->unsli3.sli3Words[3]);
2419 lpfc_in_buf_free(phba, dmzbuf);
2422 if (irsp->ulpBdeCount > 2) {
2423 dmzbuf = lpfc_sli_get_buff(phba, pring,
2424 irsp->unsli3.sli3Words[7]);
2425 lpfc_in_buf_free(phba, dmzbuf);
2431 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
2432 if (irsp->ulpBdeCount != 0) {
2433 saveq->context2 = lpfc_sli_get_buff(phba, pring,
2434 irsp->un.ulpWord[3]);
2435 if (!saveq->context2)
2436 lpfc_printf_log(phba,
2439 "0341 Ring %d Cannot find buffer for "
2440 "an unsolicited iocb. tag 0x%x\n",
2442 irsp->un.ulpWord[3]);
2444 if (irsp->ulpBdeCount == 2) {
2445 saveq->context3 = lpfc_sli_get_buff(phba, pring,
2446 irsp->unsli3.sli3Words[7]);
2447 if (!saveq->context3)
2448 lpfc_printf_log(phba,
2451 "0342 Ring %d Cannot find buffer for an"
2452 " unsolicited iocb. tag 0x%x\n",
2454 irsp->unsli3.sli3Words[7]);
2456 list_for_each_entry(iocbq, &saveq->list, list) {
2457 irsp = &(iocbq->iocb);
2458 if (irsp->ulpBdeCount != 0) {
2459 iocbq->context2 = lpfc_sli_get_buff(phba, pring,
2460 irsp->un.ulpWord[3]);
2461 if (!iocbq->context2)
2462 lpfc_printf_log(phba,
2465 "0343 Ring %d Cannot find "
2466 "buffer for an unsolicited iocb"
2467 ". tag 0x%x\n", pring->ringno,
2468 irsp->un.ulpWord[3]);
2470 if (irsp->ulpBdeCount == 2) {
2471 iocbq->context3 = lpfc_sli_get_buff(phba, pring,
2472 irsp->unsli3.sli3Words[7]);
2473 if (!iocbq->context3)
2474 lpfc_printf_log(phba,
2477 "0344 Ring %d Cannot find "
2478 "buffer for an unsolicited "
2481 irsp->unsli3.sli3Words[7]);
2485 if (irsp->ulpBdeCount != 0 &&
2486 (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
2487 irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
2490 /* search continue save q for same XRI */
2491 list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
2492 if (iocbq->iocb.unsli3.rcvsli3.ox_id ==
2493 saveq->iocb.unsli3.rcvsli3.ox_id) {
2494 list_add_tail(&saveq->list, &iocbq->list);
2500 list_add_tail(&saveq->clist,
2501 &pring->iocb_continue_saveq);
2502 if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
2503 list_del_init(&iocbq->clist);
2505 irsp = &(saveq->iocb);
2509 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
2510 (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
2511 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
2512 Rctl = FC_RCTL_ELS_REQ;
2515 w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
2516 Rctl = w5p->hcsw.Rctl;
2517 Type = w5p->hcsw.Type;
2519 /* Firmware Workaround */
2520 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
2521 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
2522 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
2523 Rctl = FC_RCTL_ELS_REQ;
2525 w5p->hcsw.Rctl = Rctl;
2526 w5p->hcsw.Type = Type;
2530 if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
2531 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2532 "0313 Ring %d handler: unexpected Rctl x%x "
2533 "Type x%x received\n",
2534 pring->ringno, Rctl, Type);
2540 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
2541 * @phba: Pointer to HBA context object.
2542 * @pring: Pointer to driver SLI ring object.
2543 * @prspiocb: Pointer to response iocb object.
2545 * This function looks up the iocb_lookup table to get the command iocb
2546 * corresponding to the given response iocb using the iotag of the
2547 * response iocb. This function is called with the hbalock held.
2548 * This function returns the command iocb object if it finds the command
2549 * iocb else returns NULL.
2551 static struct lpfc_iocbq *
2552 lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
2553 struct lpfc_sli_ring *pring,
2554 struct lpfc_iocbq *prspiocb)
2556 struct lpfc_iocbq *cmd_iocb = NULL;
2559 iotag = prspiocb->iocb.ulpIoTag;
2561 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2562 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2563 list_del_init(&cmd_iocb->list);
2564 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
2565 pring->txcmplq_cnt--;
2566 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
2571 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2572 "0317 iotag x%x is out off "
2573 "range: max iotag x%x wd0 x%x\n",
2574 iotag, phba->sli.last_iotag,
2575 *(((uint32_t *) &prspiocb->iocb) + 7));
2580 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2581 * @phba: Pointer to HBA context object.
2582 * @pring: Pointer to driver SLI ring object.
2585 * This function looks up the iocb_lookup table to get the command iocb
2586 * corresponding to the given iotag. This function is called with the
2588 * This function returns the command iocb object if it finds the command
2589 * iocb else returns NULL.
2591 static struct lpfc_iocbq *
2592 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
2593 struct lpfc_sli_ring *pring, uint16_t iotag)
2595 struct lpfc_iocbq *cmd_iocb;
2597 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2598 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2599 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
2600 /* remove from txcmpl queue list */
2601 list_del_init(&cmd_iocb->list);
2602 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
2603 pring->txcmplq_cnt--;
2607 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2608 "0372 iotag x%x is out off range: max iotag (x%x)\n",
2609 iotag, phba->sli.last_iotag);
2614 * lpfc_sli_process_sol_iocb - process solicited iocb completion
2615 * @phba: Pointer to HBA context object.
2616 * @pring: Pointer to driver SLI ring object.
2617 * @saveq: Pointer to the response iocb to be processed.
2619 * This function is called by the ring event handler for non-fcp
2620 * rings when there is a new response iocb in the response ring.
2621 * The caller is not required to hold any locks. This function
2622 * gets the command iocb associated with the response iocb and
2623 * calls the completion handler for the command iocb. If there
2624 * is no completion handler, the function will free the resources
2625 * associated with command iocb. If the response iocb is for
2626 * an already aborted command iocb, the status of the completion
2627 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
2628 * This function always returns 1.
2631 lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2632 struct lpfc_iocbq *saveq)
2634 struct lpfc_iocbq *cmdiocbp;
2636 unsigned long iflag;
2638 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
2639 spin_lock_irqsave(&phba->hbalock, iflag);
2640 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
2641 spin_unlock_irqrestore(&phba->hbalock, iflag);
2644 if (cmdiocbp->iocb_cmpl) {
2646 * If an ELS command failed send an event to mgmt
2649 if (saveq->iocb.ulpStatus &&
2650 (pring->ringno == LPFC_ELS_RING) &&
2651 (cmdiocbp->iocb.ulpCommand ==
2652 CMD_ELS_REQUEST64_CR))
2653 lpfc_send_els_failure_event(phba,
2657 * Post all ELS completions to the worker thread.
2658 * All other are passed to the completion callback.
2660 if (pring->ringno == LPFC_ELS_RING) {
2661 if ((phba->sli_rev < LPFC_SLI_REV4) &&
2662 (cmdiocbp->iocb_flag &
2663 LPFC_DRIVER_ABORTED)) {
2664 spin_lock_irqsave(&phba->hbalock,
2666 cmdiocbp->iocb_flag &=
2667 ~LPFC_DRIVER_ABORTED;
2668 spin_unlock_irqrestore(&phba->hbalock,
2670 saveq->iocb.ulpStatus =
2671 IOSTAT_LOCAL_REJECT;
2672 saveq->iocb.un.ulpWord[4] =
2675 /* Firmware could still be in progress
2676 * of DMAing payload, so don't free data
2677 * buffer till after a hbeat.
2679 spin_lock_irqsave(&phba->hbalock,
2681 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
2682 spin_unlock_irqrestore(&phba->hbalock,
2685 if (phba->sli_rev == LPFC_SLI_REV4) {
2686 if (saveq->iocb_flag &
2687 LPFC_EXCHANGE_BUSY) {
2688 /* Set cmdiocb flag for the
2689 * exchange busy so sgl (xri)
2690 * will not be released until
2691 * the abort xri is received
2695 &phba->hbalock, iflag);
2696 cmdiocbp->iocb_flag |=
2698 spin_unlock_irqrestore(
2699 &phba->hbalock, iflag);
2701 if (cmdiocbp->iocb_flag &
2702 LPFC_DRIVER_ABORTED) {
2704 * Clear LPFC_DRIVER_ABORTED
2705 * bit in case it was driver
2709 &phba->hbalock, iflag);
2710 cmdiocbp->iocb_flag &=
2711 ~LPFC_DRIVER_ABORTED;
2712 spin_unlock_irqrestore(
2713 &phba->hbalock, iflag);
2714 cmdiocbp->iocb.ulpStatus =
2715 IOSTAT_LOCAL_REJECT;
2716 cmdiocbp->iocb.un.ulpWord[4] =
2717 IOERR_ABORT_REQUESTED;
2719 * For SLI4, irsiocb contains
2720 * NO_XRI in sli_xritag, it
2721 * shall not affect releasing
2722 * sgl (xri) process.
2724 saveq->iocb.ulpStatus =
2725 IOSTAT_LOCAL_REJECT;
2726 saveq->iocb.un.ulpWord[4] =
2729 &phba->hbalock, iflag);
2731 LPFC_DELAY_MEM_FREE;
2732 spin_unlock_irqrestore(
2733 &phba->hbalock, iflag);
2737 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
2739 lpfc_sli_release_iocbq(phba, cmdiocbp);
2742 * Unknown initiating command based on the response iotag.
2743 * This could be the case on the ELS ring because of
2746 if (pring->ringno != LPFC_ELS_RING) {
2748 * Ring <ringno> handler: unexpected completion IoTag
2751 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2752 "0322 Ring %d handler: "
2753 "unexpected completion IoTag x%x "
2754 "Data: x%x x%x x%x x%x\n",
2756 saveq->iocb.ulpIoTag,
2757 saveq->iocb.ulpStatus,
2758 saveq->iocb.un.ulpWord[4],
2759 saveq->iocb.ulpCommand,
2760 saveq->iocb.ulpContext);
2768 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
2769 * @phba: Pointer to HBA context object.
2770 * @pring: Pointer to driver SLI ring object.
2772 * This function is called from the iocb ring event handlers when
2773 * put pointer is ahead of the get pointer for a ring. This function signal
2774 * an error attention condition to the worker thread and the worker
2775 * thread will transition the HBA to offline state.
2778 lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
2780 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2782 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
2783 * rsp ring <portRspMax>
2785 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2786 "0312 Ring %d handler: portRspPut %d "
2787 "is bigger than rsp ring %d\n",
2788 pring->ringno, le32_to_cpu(pgp->rspPutInx),
2791 phba->link_state = LPFC_HBA_ERROR;
2794 * All error attention handlers are posted to
2797 phba->work_ha |= HA_ERATT;
2798 phba->work_hs = HS_FFER3;
2800 lpfc_worker_wake_up(phba);
2806 * lpfc_poll_eratt - Error attention polling timer timeout handler
2807 * @ptr: Pointer to address of HBA context object.
2809 * This function is invoked by the Error Attention polling timer when the
2810 * timer times out. It will check the SLI Error Attention register for
2811 * possible attention events. If so, it will post an Error Attention event
2812 * and wake up worker thread to process it. Otherwise, it will set up the
2813 * Error Attention polling timer for the next poll.
2815 void lpfc_poll_eratt(unsigned long ptr)
2817 struct lpfc_hba *phba;
2820 phba = (struct lpfc_hba *)ptr;
2822 /* Check chip HA register for error event */
2823 eratt = lpfc_sli_check_eratt(phba);
2826 /* Tell the worker thread there is work to do */
2827 lpfc_worker_wake_up(phba);
2829 /* Restart the timer for next eratt poll */
2830 mod_timer(&phba->eratt_poll, jiffies +
2831 HZ * LPFC_ERATT_POLL_INTERVAL);
2837 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
2838 * @phba: Pointer to HBA context object.
2839 * @pring: Pointer to driver SLI ring object.
2840 * @mask: Host attention register mask for this ring.
2842 * This function is called from the interrupt context when there is a ring
2843 * event for the fcp ring. The caller does not hold any lock.
2844 * The function processes each response iocb in the response ring until it
2845 * finds an iocb with LE bit set and chains all the iocbs up to the iocb with
2846 * LE bit set. The function will call the completion handler of the command iocb
2847 * if the response iocb indicates a completion for a command iocb or it is
2848 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
2849 * function if this is an unsolicited iocb.
2850 * This routine presumes LPFC_FCP_RING handling and doesn't bother
2851 * to check it explicitly.
2854 lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
2855 struct lpfc_sli_ring *pring, uint32_t mask)
2857 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2858 IOCB_t *irsp = NULL;
2859 IOCB_t *entry = NULL;
2860 struct lpfc_iocbq *cmdiocbq = NULL;
2861 struct lpfc_iocbq rspiocbq;
2863 uint32_t portRspPut, portRspMax;
2865 lpfc_iocb_type type;
2866 unsigned long iflag;
2867 uint32_t rsp_cmpl = 0;
2869 spin_lock_irqsave(&phba->hbalock, iflag);
2870 pring->stats.iocb_event++;
2873 * The next available response entry should never exceed the maximum
2874 * entries. If it does, treat it as an adapter hardware error.
2876 portRspMax = pring->numRiocb;
2877 portRspPut = le32_to_cpu(pgp->rspPutInx);
2878 if (unlikely(portRspPut >= portRspMax)) {
2879 lpfc_sli_rsp_pointers_error(phba, pring);
2880 spin_unlock_irqrestore(&phba->hbalock, iflag);
2883 if (phba->fcp_ring_in_use) {
2884 spin_unlock_irqrestore(&phba->hbalock, iflag);
2887 phba->fcp_ring_in_use = 1;
2890 while (pring->rspidx != portRspPut) {
2892 * Fetch an entry off the ring and copy it into a local data
2893 * structure. The copy involves a byte-swap since the
2894 * network byte order and pci byte orders are different.
2896 entry = lpfc_resp_iocb(phba, pring);
2897 phba->last_completion_time = jiffies;
2899 if (++pring->rspidx >= portRspMax)
2902 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
2903 (uint32_t *) &rspiocbq.iocb,
2904 phba->iocb_rsp_size);
2905 INIT_LIST_HEAD(&(rspiocbq.list));
2906 irsp = &rspiocbq.iocb;
2908 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
2909 pring->stats.iocb_rsp++;
2912 if (unlikely(irsp->ulpStatus)) {
2914 * If resource errors reported from HBA, reduce
2915 * queuedepths of the SCSI device.
2917 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
2918 (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) {
2919 spin_unlock_irqrestore(&phba->hbalock, iflag);
2920 phba->lpfc_rampdown_queue_depth(phba);
2921 spin_lock_irqsave(&phba->hbalock, iflag);
2924 /* Rsp ring <ringno> error: IOCB */
2925 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2926 "0336 Rsp Ring %d error: IOCB Data: "
2927 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
2929 irsp->un.ulpWord[0],
2930 irsp->un.ulpWord[1],
2931 irsp->un.ulpWord[2],
2932 irsp->un.ulpWord[3],
2933 irsp->un.ulpWord[4],
2934 irsp->un.ulpWord[5],
2935 *(uint32_t *)&irsp->un1,
2936 *((uint32_t *)&irsp->un1 + 1));
2940 case LPFC_ABORT_IOCB:
2943 * Idle exchange closed via ABTS from port. No iocb
2944 * resources need to be recovered.
2946 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
2947 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2948 "0333 IOCB cmd 0x%x"
2949 " processed. Skipping"
2955 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
2957 if (unlikely(!cmdiocbq))
2959 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED)
2960 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
2961 if (cmdiocbq->iocb_cmpl) {
2962 spin_unlock_irqrestore(&phba->hbalock, iflag);
2963 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
2965 spin_lock_irqsave(&phba->hbalock, iflag);
2968 case LPFC_UNSOL_IOCB:
2969 spin_unlock_irqrestore(&phba->hbalock, iflag);
2970 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
2971 spin_lock_irqsave(&phba->hbalock, iflag);
2974 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
2975 char adaptermsg[LPFC_MAX_ADPTMSG];
2976 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
2977 memcpy(&adaptermsg[0], (uint8_t *) irsp,
2979 dev_warn(&((phba->pcidev)->dev),
2981 phba->brd_no, adaptermsg);
2983 /* Unknown IOCB command */
2984 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2985 "0334 Unknown IOCB command "
2986 "Data: x%x, x%x x%x x%x x%x\n",
2987 type, irsp->ulpCommand,
2996 * The response IOCB has been processed. Update the ring
2997 * pointer in SLIM. If the port response put pointer has not
2998 * been updated, sync the pgp->rspPutInx and fetch the new port
2999 * response put pointer.
3001 writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx);
3003 if (pring->rspidx == portRspPut)
3004 portRspPut = le32_to_cpu(pgp->rspPutInx);
3007 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
3008 pring->stats.iocb_rsp_full++;
3009 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3010 writel(status, phba->CAregaddr);
3011 readl(phba->CAregaddr);
3013 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3014 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3015 pring->stats.iocb_cmd_empty++;
3017 /* Force update of the local copy of cmdGetInx */
3018 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
3019 lpfc_sli_resume_iocb(phba, pring);
3021 if ((pring->lpfc_sli_cmd_available))
3022 (pring->lpfc_sli_cmd_available) (phba, pring);
3026 phba->fcp_ring_in_use = 0;
3027 spin_unlock_irqrestore(&phba->hbalock, iflag);
3032 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
3033 * @phba: Pointer to HBA context object.
3034 * @pring: Pointer to driver SLI ring object.
3035 * @rspiocbp: Pointer to driver response IOCB object.
3037 * This function is called from the worker thread when there is a slow-path
3038 * response IOCB to process. This function chains all the response iocbs until
3039 * seeing the iocb with the LE bit set. The function will call
3040 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
3041 * completion of a command iocb. The function will call the
3042 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
3043 * The function frees the resources or calls the completion handler if this
3044 * iocb is an abort completion. The function returns NULL when the response
3045 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
3046 * this function shall chain the iocb on to the iocb_continueq and return the
3047 * response iocb passed in.
3049 static struct lpfc_iocbq *
3050 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3051 struct lpfc_iocbq *rspiocbp)
3053 struct lpfc_iocbq *saveq;
3054 struct lpfc_iocbq *cmdiocbp;
3055 struct lpfc_iocbq *next_iocb;
3056 IOCB_t *irsp = NULL;
3057 uint32_t free_saveq;
3058 uint8_t iocb_cmd_type;
3059 lpfc_iocb_type type;
3060 unsigned long iflag;
3063 spin_lock_irqsave(&phba->hbalock, iflag);
3064 /* First add the response iocb to the countinueq list */
3065 list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
3066 pring->iocb_continueq_cnt++;
3068 /* Now, determine whether the list is completed for processing */
3069 irsp = &rspiocbp->iocb;
3072 * By default, the driver expects to free all resources
3073 * associated with this iocb completion.
3076 saveq = list_get_first(&pring->iocb_continueq,
3077 struct lpfc_iocbq, list);
3078 irsp = &(saveq->iocb);
3079 list_del_init(&pring->iocb_continueq);
3080 pring->iocb_continueq_cnt = 0;
3082 pring->stats.iocb_rsp++;
3085 * If resource errors reported from HBA, reduce
3086 * queuedepths of the SCSI device.
3088 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3089 (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) {
3090 spin_unlock_irqrestore(&phba->hbalock, iflag);
3091 phba->lpfc_rampdown_queue_depth(phba);
3092 spin_lock_irqsave(&phba->hbalock, iflag);
3095 if (irsp->ulpStatus) {
3096 /* Rsp ring <ringno> error: IOCB */
3097 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3098 "0328 Rsp Ring %d error: "
3103 "x%x x%x x%x x%x\n",
3105 irsp->un.ulpWord[0],
3106 irsp->un.ulpWord[1],
3107 irsp->un.ulpWord[2],
3108 irsp->un.ulpWord[3],
3109 irsp->un.ulpWord[4],
3110 irsp->un.ulpWord[5],
3111 *(((uint32_t *) irsp) + 6),
3112 *(((uint32_t *) irsp) + 7),
3113 *(((uint32_t *) irsp) + 8),
3114 *(((uint32_t *) irsp) + 9),
3115 *(((uint32_t *) irsp) + 10),
3116 *(((uint32_t *) irsp) + 11),
3117 *(((uint32_t *) irsp) + 12),
3118 *(((uint32_t *) irsp) + 13),
3119 *(((uint32_t *) irsp) + 14),
3120 *(((uint32_t *) irsp) + 15));
3124 * Fetch the IOCB command type and call the correct completion
3125 * routine. Solicited and Unsolicited IOCBs on the ELS ring
3126 * get freed back to the lpfc_iocb_list by the discovery
3129 iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
3130 type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
3133 spin_unlock_irqrestore(&phba->hbalock, iflag);
3134 rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
3135 spin_lock_irqsave(&phba->hbalock, iflag);
3138 case LPFC_UNSOL_IOCB:
3139 spin_unlock_irqrestore(&phba->hbalock, iflag);
3140 rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
3141 spin_lock_irqsave(&phba->hbalock, iflag);
3146 case LPFC_ABORT_IOCB:
3148 if (irsp->ulpCommand != CMD_XRI_ABORTED_CX)
3149 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
3152 /* Call the specified completion routine */
3153 if (cmdiocbp->iocb_cmpl) {
3154 spin_unlock_irqrestore(&phba->hbalock,
3156 (cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
3158 spin_lock_irqsave(&phba->hbalock,
3161 __lpfc_sli_release_iocbq(phba,
3166 case LPFC_UNKNOWN_IOCB:
3167 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3168 char adaptermsg[LPFC_MAX_ADPTMSG];
3169 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3170 memcpy(&adaptermsg[0], (uint8_t *)irsp,
3172 dev_warn(&((phba->pcidev)->dev),
3174 phba->brd_no, adaptermsg);
3176 /* Unknown IOCB command */
3177 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3178 "0335 Unknown IOCB "
3179 "command Data: x%x "
3190 list_for_each_entry_safe(rspiocbp, next_iocb,
3191 &saveq->list, list) {
3192 list_del(&rspiocbp->list);
3193 __lpfc_sli_release_iocbq(phba, rspiocbp);
3195 __lpfc_sli_release_iocbq(phba, saveq);
3199 spin_unlock_irqrestore(&phba->hbalock, iflag);
3204 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
3205 * @phba: Pointer to HBA context object.
3206 * @pring: Pointer to driver SLI ring object.
3207 * @mask: Host attention register mask for this ring.
3209 * This routine wraps the actual slow_ring event process routine from the
3210 * API jump table function pointer from the lpfc_hba struct.
3213 lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
3214 struct lpfc_sli_ring *pring, uint32_t mask)
3216 phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
3220 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
3221 * @phba: Pointer to HBA context object.
3222 * @pring: Pointer to driver SLI ring object.
3223 * @mask: Host attention register mask for this ring.
3225 * This function is called from the worker thread when there is a ring event
3226 * for non-fcp rings. The caller does not hold any lock. The function will
3227 * remove each response iocb in the response ring and calls the handle
3228 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3231 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
3232 struct lpfc_sli_ring *pring, uint32_t mask)
3234 struct lpfc_pgp *pgp;
3236 IOCB_t *irsp = NULL;
3237 struct lpfc_iocbq *rspiocbp = NULL;
3238 uint32_t portRspPut, portRspMax;
3239 unsigned long iflag;
3242 pgp = &phba->port_gp[pring->ringno];
3243 spin_lock_irqsave(&phba->hbalock, iflag);
3244 pring->stats.iocb_event++;
3247 * The next available response entry should never exceed the maximum
3248 * entries. If it does, treat it as an adapter hardware error.
3250 portRspMax = pring->numRiocb;
3251 portRspPut = le32_to_cpu(pgp->rspPutInx);
3252 if (portRspPut >= portRspMax) {
3254 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
3255 * rsp ring <portRspMax>
3257 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3258 "0303 Ring %d handler: portRspPut %d "
3259 "is bigger than rsp ring %d\n",
3260 pring->ringno, portRspPut, portRspMax);
3262 phba->link_state = LPFC_HBA_ERROR;
3263 spin_unlock_irqrestore(&phba->hbalock, iflag);
3265 phba->work_hs = HS_FFER3;
3266 lpfc_handle_eratt(phba);
3272 while (pring->rspidx != portRspPut) {
3274 * Build a completion list and call the appropriate handler.
3275 * The process is to get the next available response iocb, get
3276 * a free iocb from the list, copy the response data into the
3277 * free iocb, insert to the continuation list, and update the
3278 * next response index to slim. This process makes response
3279 * iocb's in the ring available to DMA as fast as possible but
3280 * pays a penalty for a copy operation. Since the iocb is
3281 * only 32 bytes, this penalty is considered small relative to
3282 * the PCI reads for register values and a slim write. When
3283 * the ulpLe field is set, the entire Command has been
3286 entry = lpfc_resp_iocb(phba, pring);
3288 phba->last_completion_time = jiffies;
3289 rspiocbp = __lpfc_sli_get_iocbq(phba);
3290 if (rspiocbp == NULL) {
3291 printk(KERN_ERR "%s: out of buffers! Failing "
3292 "completion.\n", __func__);
3296 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
3297 phba->iocb_rsp_size);
3298 irsp = &rspiocbp->iocb;
3300 if (++pring->rspidx >= portRspMax)
3303 if (pring->ringno == LPFC_ELS_RING) {
3304 lpfc_debugfs_slow_ring_trc(phba,
3305 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
3306 *(((uint32_t *) irsp) + 4),
3307 *(((uint32_t *) irsp) + 6),
3308 *(((uint32_t *) irsp) + 7));
3311 writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx);
3313 spin_unlock_irqrestore(&phba->hbalock, iflag);
3314 /* Handle the response IOCB */
3315 rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
3316 spin_lock_irqsave(&phba->hbalock, iflag);
3319 * If the port response put pointer has not been updated, sync
3320 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
3321 * response put pointer.
3323 if (pring->rspidx == portRspPut) {
3324 portRspPut = le32_to_cpu(pgp->rspPutInx);
3326 } /* while (pring->rspidx != portRspPut) */
3328 if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
3329 /* At least one response entry has been freed */
3330 pring->stats.iocb_rsp_full++;
3331 /* SET RxRE_RSP in Chip Att register */
3332 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3333 writel(status, phba->CAregaddr);
3334 readl(phba->CAregaddr); /* flush */
3336 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3337 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3338 pring->stats.iocb_cmd_empty++;
3340 /* Force update of the local copy of cmdGetInx */
3341 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
3342 lpfc_sli_resume_iocb(phba, pring);
3344 if ((pring->lpfc_sli_cmd_available))
3345 (pring->lpfc_sli_cmd_available) (phba, pring);
3349 spin_unlock_irqrestore(&phba->hbalock, iflag);
3354 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
3355 * @phba: Pointer to HBA context object.
3356 * @pring: Pointer to driver SLI ring object.
3357 * @mask: Host attention register mask for this ring.
3359 * This function is called from the worker thread when there is a pending
3360 * ELS response iocb on the driver internal slow-path response iocb worker
3361 * queue. The caller does not hold any lock. The function will remove each
3362 * response iocb from the response worker queue and calls the handle
3363 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3366 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
3367 struct lpfc_sli_ring *pring, uint32_t mask)
3369 struct lpfc_iocbq *irspiocbq;
3370 struct hbq_dmabuf *dmabuf;
3371 struct lpfc_cq_event *cq_event;
3372 unsigned long iflag;
3374 spin_lock_irqsave(&phba->hbalock, iflag);
3375 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
3376 spin_unlock_irqrestore(&phba->hbalock, iflag);
3377 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
3378 /* Get the response iocb from the head of work queue */
3379 spin_lock_irqsave(&phba->hbalock, iflag);
3380 list_remove_head(&phba->sli4_hba.sp_queue_event,
3381 cq_event, struct lpfc_cq_event, list);
3382 spin_unlock_irqrestore(&phba->hbalock, iflag);
3384 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
3385 case CQE_CODE_COMPL_WQE:
3386 irspiocbq = container_of(cq_event, struct lpfc_iocbq,
3388 /* Translate ELS WCQE to response IOCBQ */
3389 irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba,
3392 lpfc_sli_sp_handle_rspiocb(phba, pring,
3395 case CQE_CODE_RECEIVE:
3396 case CQE_CODE_RECEIVE_V1:
3397 dmabuf = container_of(cq_event, struct hbq_dmabuf,
3399 lpfc_sli4_handle_received_buffer(phba, dmabuf);
3408 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
3409 * @phba: Pointer to HBA context object.
3410 * @pring: Pointer to driver SLI ring object.
3412 * This function aborts all iocbs in the given ring and frees all the iocb
3413 * objects in txq. This function issues an abort iocb for all the iocb commands
3414 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3415 * the return of this function. The caller is not required to hold any locks.
3418 lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3420 LIST_HEAD(completions);
3421 struct lpfc_iocbq *iocb, *next_iocb;
3423 if (pring->ringno == LPFC_ELS_RING) {
3424 lpfc_fabric_abort_hba(phba);
3427 /* Error everything on txq and txcmplq
3430 spin_lock_irq(&phba->hbalock);
3431 list_splice_init(&pring->txq, &completions);
3434 /* Next issue ABTS for everything on the txcmplq */
3435 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3436 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3438 spin_unlock_irq(&phba->hbalock);
3440 /* Cancel all the IOCBs from the completions list */
3441 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3446 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
3447 * @phba: Pointer to HBA context object.
3449 * This function flushes all iocbs in the fcp ring and frees all the iocb
3450 * objects in txq and txcmplq. This function will not issue abort iocbs
3451 * for all the iocb commands in txcmplq, they will just be returned with
3452 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3453 * slot has been permanently disabled.
3456 lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba)
3460 struct lpfc_sli *psli = &phba->sli;
3461 struct lpfc_sli_ring *pring;
3463 /* Currently, only one fcp ring */
3464 pring = &psli->ring[psli->fcp_ring];
3466 spin_lock_irq(&phba->hbalock);
3467 /* Retrieve everything on txq */
3468 list_splice_init(&pring->txq, &txq);
3471 /* Retrieve everything on the txcmplq */
3472 list_splice_init(&pring->txcmplq, &txcmplq);
3473 pring->txcmplq_cnt = 0;
3475 /* Indicate the I/O queues are flushed */
3476 phba->hba_flag |= HBA_FCP_IOQ_FLUSH;
3477 spin_unlock_irq(&phba->hbalock);
3480 lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
3483 /* Flush the txcmpq */
3484 lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
3489 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
3490 * @phba: Pointer to HBA context object.
3491 * @mask: Bit mask to be checked.
3493 * This function reads the host status register and compares
3494 * with the provided bit mask to check if HBA completed
3495 * the restart. This function will wait in a loop for the
3496 * HBA to complete restart. If the HBA does not restart within
3497 * 15 iterations, the function will reset the HBA again. The
3498 * function returns 1 when HBA fail to restart otherwise returns
3502 lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
3508 /* Read the HBA Host Status Register */
3509 if (lpfc_readl(phba->HSregaddr, &status))
3513 * Check status register every 100ms for 5 retries, then every
3514 * 500ms for 5, then every 2.5 sec for 5, then reset board and
3515 * every 2.5 sec for 4.
3516 * Break our of the loop if errors occurred during init.
3518 while (((status & mask) != mask) &&
3519 !(status & HS_FFERM) &&
3531 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3532 lpfc_sli_brdrestart(phba);
3534 /* Read the HBA Host Status Register */
3535 if (lpfc_readl(phba->HSregaddr, &status)) {
3541 /* Check to see if any errors occurred during init */
3542 if ((status & HS_FFERM) || (i >= 20)) {
3543 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3544 "2751 Adapter failed to restart, "
3545 "status reg x%x, FW Data: A8 x%x AC x%x\n",
3547 readl(phba->MBslimaddr + 0xa8),
3548 readl(phba->MBslimaddr + 0xac));
3549 phba->link_state = LPFC_HBA_ERROR;
3557 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3558 * @phba: Pointer to HBA context object.
3559 * @mask: Bit mask to be checked.
3561 * This function checks the host status register to check if HBA is
3562 * ready. This function will wait in a loop for the HBA to be ready
3563 * If the HBA is not ready , the function will will reset the HBA PCI
3564 * function again. The function returns 1 when HBA fail to be ready
3565 * otherwise returns zero.
3568 lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
3573 /* Read the HBA Host Status Register */
3574 status = lpfc_sli4_post_status_check(phba);
3577 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3578 lpfc_sli_brdrestart(phba);
3579 status = lpfc_sli4_post_status_check(phba);
3582 /* Check to see if any errors occurred during init */
3584 phba->link_state = LPFC_HBA_ERROR;
3587 phba->sli4_hba.intr_enable = 0;
3593 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3594 * @phba: Pointer to HBA context object.
3595 * @mask: Bit mask to be checked.
3597 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3598 * from the API jump table function pointer from the lpfc_hba struct.
3601 lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
3603 return phba->lpfc_sli_brdready(phba, mask);
3606 #define BARRIER_TEST_PATTERN (0xdeadbeef)
3609 * lpfc_reset_barrier - Make HBA ready for HBA reset
3610 * @phba: Pointer to HBA context object.
3612 * This function is called before resetting an HBA. This function is called
3613 * with hbalock held and requests HBA to quiesce DMAs before a reset.
3615 void lpfc_reset_barrier(struct lpfc_hba *phba)
3617 uint32_t __iomem *resp_buf;
3618 uint32_t __iomem *mbox_buf;
3619 volatile uint32_t mbox;
3620 uint32_t hc_copy, ha_copy, resp_data;
3624 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
3625 if (hdrtype != 0x80 ||
3626 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
3627 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
3631 * Tell the other part of the chip to suspend temporarily all
3634 resp_buf = phba->MBslimaddr;
3636 /* Disable the error attention */
3637 if (lpfc_readl(phba->HCregaddr, &hc_copy))
3639 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
3640 readl(phba->HCregaddr); /* flush */
3641 phba->link_flag |= LS_IGNORE_ERATT;
3643 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3645 if (ha_copy & HA_ERATT) {
3646 /* Clear Chip error bit */
3647 writel(HA_ERATT, phba->HAregaddr);
3648 phba->pport->stopped = 1;
3652 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
3653 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
3655 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
3656 mbox_buf = phba->MBslimaddr;
3657 writel(mbox, mbox_buf);
3659 for (i = 0; i < 50; i++) {
3660 if (lpfc_readl((resp_buf + 1), &resp_data))
3662 if (resp_data != ~(BARRIER_TEST_PATTERN))
3668 if (lpfc_readl((resp_buf + 1), &resp_data))
3670 if (resp_data != ~(BARRIER_TEST_PATTERN)) {
3671 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
3672 phba->pport->stopped)
3678 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
3680 for (i = 0; i < 500; i++) {
3681 if (lpfc_readl(resp_buf, &resp_data))
3683 if (resp_data != mbox)
3692 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3694 if (!(ha_copy & HA_ERATT))
3700 if (readl(phba->HAregaddr) & HA_ERATT) {
3701 writel(HA_ERATT, phba->HAregaddr);
3702 phba->pport->stopped = 1;
3706 phba->link_flag &= ~LS_IGNORE_ERATT;
3707 writel(hc_copy, phba->HCregaddr);
3708 readl(phba->HCregaddr); /* flush */
3712 * lpfc_sli_brdkill - Issue a kill_board mailbox command
3713 * @phba: Pointer to HBA context object.
3715 * This function issues a kill_board mailbox command and waits for
3716 * the error attention interrupt. This function is called for stopping
3717 * the firmware processing. The caller is not required to hold any
3718 * locks. This function calls lpfc_hba_down_post function to free
3719 * any pending commands after the kill. The function will return 1 when it
3720 * fails to kill the board else will return 0.
3723 lpfc_sli_brdkill(struct lpfc_hba *phba)
3725 struct lpfc_sli *psli;
3735 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3736 "0329 Kill HBA Data: x%x x%x\n",
3737 phba->pport->port_state, psli->sli_flag);
3739 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3743 /* Disable the error attention */
3744 spin_lock_irq(&phba->hbalock);
3745 if (lpfc_readl(phba->HCregaddr, &status)) {
3746 spin_unlock_irq(&phba->hbalock);
3747 mempool_free(pmb, phba->mbox_mem_pool);
3750 status &= ~HC_ERINT_ENA;
3751 writel(status, phba->HCregaddr);
3752 readl(phba->HCregaddr); /* flush */
3753 phba->link_flag |= LS_IGNORE_ERATT;
3754 spin_unlock_irq(&phba->hbalock);
3756 lpfc_kill_board(phba, pmb);
3757 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3758 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3760 if (retval != MBX_SUCCESS) {
3761 if (retval != MBX_BUSY)
3762 mempool_free(pmb, phba->mbox_mem_pool);
3763 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3764 "2752 KILL_BOARD command failed retval %d\n",
3766 spin_lock_irq(&phba->hbalock);
3767 phba->link_flag &= ~LS_IGNORE_ERATT;
3768 spin_unlock_irq(&phba->hbalock);
3772 spin_lock_irq(&phba->hbalock);
3773 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
3774 spin_unlock_irq(&phba->hbalock);
3776 mempool_free(pmb, phba->mbox_mem_pool);
3778 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
3779 * attention every 100ms for 3 seconds. If we don't get ERATT after
3780 * 3 seconds we still set HBA_ERROR state because the status of the
3781 * board is now undefined.
3783 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3785 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
3787 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3791 del_timer_sync(&psli->mbox_tmo);
3792 if (ha_copy & HA_ERATT) {
3793 writel(HA_ERATT, phba->HAregaddr);
3794 phba->pport->stopped = 1;
3796 spin_lock_irq(&phba->hbalock);
3797 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
3798 psli->mbox_active = NULL;
3799 phba->link_flag &= ~LS_IGNORE_ERATT;
3800 spin_unlock_irq(&phba->hbalock);
3802 lpfc_hba_down_post(phba);
3803 phba->link_state = LPFC_HBA_ERROR;
3805 return ha_copy & HA_ERATT ? 0 : 1;
3809 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
3810 * @phba: Pointer to HBA context object.
3812 * This function resets the HBA by writing HC_INITFF to the control
3813 * register. After the HBA resets, this function resets all the iocb ring
3814 * indices. This function disables PCI layer parity checking during
3816 * This function returns 0 always.
3817 * The caller is not required to hold any locks.
3820 lpfc_sli_brdreset(struct lpfc_hba *phba)
3822 struct lpfc_sli *psli;
3823 struct lpfc_sli_ring *pring;
3830 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3831 "0325 Reset HBA Data: x%x x%x\n",
3832 phba->pport->port_state, psli->sli_flag);
3834 /* perform board reset */
3835 phba->fc_eventTag = 0;
3836 phba->link_events = 0;
3837 phba->pport->fc_myDID = 0;
3838 phba->pport->fc_prevDID = 0;
3840 /* Turn off parity checking and serr during the physical reset */
3841 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
3842 pci_write_config_word(phba->pcidev, PCI_COMMAND,
3844 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
3846 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
3848 /* Now toggle INITFF bit in the Host Control Register */
3849 writel(HC_INITFF, phba->HCregaddr);
3851 readl(phba->HCregaddr); /* flush */
3852 writel(0, phba->HCregaddr);
3853 readl(phba->HCregaddr); /* flush */
3855 /* Restore PCI cmd register */
3856 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
3858 /* Initialize relevant SLI info */
3859 for (i = 0; i < psli->num_rings; i++) {
3860 pring = &psli->ring[i];
3863 pring->next_cmdidx = 0;
3864 pring->local_getidx = 0;
3866 pring->missbufcnt = 0;
3869 phba->link_state = LPFC_WARM_START;
3874 * lpfc_sli4_brdreset - Reset a sli-4 HBA
3875 * @phba: Pointer to HBA context object.
3877 * This function resets a SLI4 HBA. This function disables PCI layer parity
3878 * checking during resets the device. The caller is not required to hold
3881 * This function returns 0 always.
3884 lpfc_sli4_brdreset(struct lpfc_hba *phba)
3886 struct lpfc_sli *psli = &phba->sli;
3891 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3892 "0295 Reset HBA Data: x%x x%x\n",
3893 phba->pport->port_state, psli->sli_flag);
3895 /* perform board reset */
3896 phba->fc_eventTag = 0;
3897 phba->link_events = 0;
3898 phba->pport->fc_myDID = 0;
3899 phba->pport->fc_prevDID = 0;
3901 spin_lock_irq(&phba->hbalock);
3902 psli->sli_flag &= ~(LPFC_PROCESS_LA);
3903 phba->fcf.fcf_flag = 0;
3904 spin_unlock_irq(&phba->hbalock);
3906 /* Now physically reset the device */
3907 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3908 "0389 Performing PCI function reset!\n");
3910 /* Turn off parity checking and serr during the physical reset */
3911 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
3912 pci_write_config_word(phba->pcidev, PCI_COMMAND, (cfg_value &
3913 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
3915 /* Perform FCoE PCI function reset */
3916 lpfc_sli4_queue_destroy(phba);
3917 rc = lpfc_pci_function_reset(phba);
3919 /* Restore PCI cmd register */
3920 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
3926 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
3927 * @phba: Pointer to HBA context object.
3929 * This function is called in the SLI initialization code path to
3930 * restart the HBA. The caller is not required to hold any lock.
3931 * This function writes MBX_RESTART mailbox command to the SLIM and
3932 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
3933 * function to free any pending commands. The function enables
3934 * POST only during the first initialization. The function returns zero.
3935 * The function does not guarantee completion of MBX_RESTART mailbox
3936 * command before the return of this function.
3939 lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
3942 struct lpfc_sli *psli;
3943 volatile uint32_t word0;
3944 void __iomem *to_slim;
3945 uint32_t hba_aer_enabled;
3947 spin_lock_irq(&phba->hbalock);
3949 /* Take PCIe device Advanced Error Reporting (AER) state */
3950 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
3955 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3956 "0337 Restart HBA Data: x%x x%x\n",
3957 phba->pport->port_state, psli->sli_flag);
3960 mb = (MAILBOX_t *) &word0;
3961 mb->mbxCommand = MBX_RESTART;
3964 lpfc_reset_barrier(phba);
3966 to_slim = phba->MBslimaddr;
3967 writel(*(uint32_t *) mb, to_slim);
3968 readl(to_slim); /* flush */
3970 /* Only skip post after fc_ffinit is completed */
3971 if (phba->pport->port_state)
3972 word0 = 1; /* This is really setting up word1 */
3974 word0 = 0; /* This is really setting up word1 */
3975 to_slim = phba->MBslimaddr + sizeof (uint32_t);
3976 writel(*(uint32_t *) mb, to_slim);
3977 readl(to_slim); /* flush */
3979 lpfc_sli_brdreset(phba);
3980 phba->pport->stopped = 0;
3981 phba->link_state = LPFC_INIT_START;
3983 spin_unlock_irq(&phba->hbalock);
3985 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
3986 psli->stats_start = get_seconds();
3988 /* Give the INITFF and Post time to settle. */
3991 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
3992 if (hba_aer_enabled)
3993 pci_disable_pcie_error_reporting(phba->pcidev);
3995 lpfc_hba_down_post(phba);
4001 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
4002 * @phba: Pointer to HBA context object.
4004 * This function is called in the SLI initialization code path to restart
4005 * a SLI4 HBA. The caller is not required to hold any lock.
4006 * At the end of the function, it calls lpfc_hba_down_post function to
4007 * free any pending commands.
4010 lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
4012 struct lpfc_sli *psli = &phba->sli;
4013 uint32_t hba_aer_enabled;
4017 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4018 "0296 Restart HBA Data: x%x x%x\n",
4019 phba->pport->port_state, psli->sli_flag);
4021 /* Take PCIe device Advanced Error Reporting (AER) state */
4022 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4024 rc = lpfc_sli4_brdreset(phba);
4026 spin_lock_irq(&phba->hbalock);
4027 phba->pport->stopped = 0;
4028 phba->link_state = LPFC_INIT_START;
4030 spin_unlock_irq(&phba->hbalock);
4032 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4033 psli->stats_start = get_seconds();
4035 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4036 if (hba_aer_enabled)
4037 pci_disable_pcie_error_reporting(phba->pcidev);
4039 lpfc_hba_down_post(phba);
4045 * lpfc_sli_brdrestart - Wrapper func for restarting hba
4046 * @phba: Pointer to HBA context object.
4048 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
4049 * API jump table function pointer from the lpfc_hba struct.
4052 lpfc_sli_brdrestart(struct lpfc_hba *phba)
4054 return phba->lpfc_sli_brdrestart(phba);
4058 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
4059 * @phba: Pointer to HBA context object.
4061 * This function is called after a HBA restart to wait for successful
4062 * restart of the HBA. Successful restart of the HBA is indicated by
4063 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
4064 * iteration, the function will restart the HBA again. The function returns
4065 * zero if HBA successfully restarted else returns negative error code.
4068 lpfc_sli_chipset_init(struct lpfc_hba *phba)
4070 uint32_t status, i = 0;
4072 /* Read the HBA Host Status Register */
4073 if (lpfc_readl(phba->HSregaddr, &status))
4076 /* Check status register to see what current state is */
4078 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
4080 /* Check every 10ms for 10 retries, then every 100ms for 90
4081 * retries, then every 1 sec for 50 retires for a total of
4082 * ~60 seconds before reset the board again and check every
4083 * 1 sec for 50 retries. The up to 60 seconds before the
4084 * board ready is required by the Falcon FIPS zeroization
4085 * complete, and any reset the board in between shall cause
4086 * restart of zeroization, further delay the board ready.
4089 /* Adapter failed to init, timeout, status reg
4091 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4092 "0436 Adapter failed to init, "
4093 "timeout, status reg x%x, "
4094 "FW Data: A8 x%x AC x%x\n", status,
4095 readl(phba->MBslimaddr + 0xa8),
4096 readl(phba->MBslimaddr + 0xac));
4097 phba->link_state = LPFC_HBA_ERROR;
4101 /* Check to see if any errors occurred during init */
4102 if (status & HS_FFERM) {
4103 /* ERROR: During chipset initialization */
4104 /* Adapter failed to init, chipset, status reg
4106 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4107 "0437 Adapter failed to init, "
4108 "chipset, status reg x%x, "
4109 "FW Data: A8 x%x AC x%x\n", status,
4110 readl(phba->MBslimaddr + 0xa8),
4111 readl(phba->MBslimaddr + 0xac));
4112 phba->link_state = LPFC_HBA_ERROR;
4125 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4126 lpfc_sli_brdrestart(phba);
4128 /* Read the HBA Host Status Register */
4129 if (lpfc_readl(phba->HSregaddr, &status))
4133 /* Check to see if any errors occurred during init */
4134 if (status & HS_FFERM) {
4135 /* ERROR: During chipset initialization */
4136 /* Adapter failed to init, chipset, status reg <status> */
4137 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4138 "0438 Adapter failed to init, chipset, "
4140 "FW Data: A8 x%x AC x%x\n", status,
4141 readl(phba->MBslimaddr + 0xa8),
4142 readl(phba->MBslimaddr + 0xac));
4143 phba->link_state = LPFC_HBA_ERROR;
4147 /* Clear all interrupt enable conditions */
4148 writel(0, phba->HCregaddr);
4149 readl(phba->HCregaddr); /* flush */
4151 /* setup host attn register */
4152 writel(0xffffffff, phba->HAregaddr);
4153 readl(phba->HAregaddr); /* flush */
4158 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
4160 * This function calculates and returns the number of HBQs required to be
4164 lpfc_sli_hbq_count(void)
4166 return ARRAY_SIZE(lpfc_hbq_defs);
4170 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
4172 * This function adds the number of hbq entries in every HBQ to get
4173 * the total number of hbq entries required for the HBA and returns
4177 lpfc_sli_hbq_entry_count(void)
4179 int hbq_count = lpfc_sli_hbq_count();
4183 for (i = 0; i < hbq_count; ++i)
4184 count += lpfc_hbq_defs[i]->entry_count;
4189 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
4191 * This function calculates amount of memory required for all hbq entries
4192 * to be configured and returns the total memory required.
4195 lpfc_sli_hbq_size(void)
4197 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
4201 * lpfc_sli_hbq_setup - configure and initialize HBQs
4202 * @phba: Pointer to HBA context object.
4204 * This function is called during the SLI initialization to configure
4205 * all the HBQs and post buffers to the HBQ. The caller is not
4206 * required to hold any locks. This function will return zero if successful
4207 * else it will return negative error code.
4210 lpfc_sli_hbq_setup(struct lpfc_hba *phba)
4212 int hbq_count = lpfc_sli_hbq_count();
4216 uint32_t hbq_entry_index;
4218 /* Get a Mailbox buffer to setup mailbox
4219 * commands for HBA initialization
4221 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4228 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
4229 phba->link_state = LPFC_INIT_MBX_CMDS;
4230 phba->hbq_in_use = 1;
4232 hbq_entry_index = 0;
4233 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
4234 phba->hbqs[hbqno].next_hbqPutIdx = 0;
4235 phba->hbqs[hbqno].hbqPutIdx = 0;
4236 phba->hbqs[hbqno].local_hbqGetIdx = 0;
4237 phba->hbqs[hbqno].entry_count =
4238 lpfc_hbq_defs[hbqno]->entry_count;
4239 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
4240 hbq_entry_index, pmb);
4241 hbq_entry_index += phba->hbqs[hbqno].entry_count;
4243 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
4244 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
4245 mbxStatus <status>, ring <num> */
4247 lpfc_printf_log(phba, KERN_ERR,
4248 LOG_SLI | LOG_VPORT,
4249 "1805 Adapter failed to init. "
4250 "Data: x%x x%x x%x\n",
4252 pmbox->mbxStatus, hbqno);
4254 phba->link_state = LPFC_HBA_ERROR;
4255 mempool_free(pmb, phba->mbox_mem_pool);
4259 phba->hbq_count = hbq_count;
4261 mempool_free(pmb, phba->mbox_mem_pool);
4263 /* Initially populate or replenish the HBQs */
4264 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
4265 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
4270 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
4271 * @phba: Pointer to HBA context object.
4273 * This function is called during the SLI initialization to configure
4274 * all the HBQs and post buffers to the HBQ. The caller is not
4275 * required to hold any locks. This function will return zero if successful
4276 * else it will return negative error code.
4279 lpfc_sli4_rb_setup(struct lpfc_hba *phba)
4281 phba->hbq_in_use = 1;
4282 phba->hbqs[0].entry_count = lpfc_hbq_defs[0]->entry_count;
4283 phba->hbq_count = 1;
4284 /* Initially populate or replenish the HBQs */
4285 lpfc_sli_hbqbuf_init_hbqs(phba, 0);
4290 * lpfc_sli_config_port - Issue config port mailbox command
4291 * @phba: Pointer to HBA context object.
4292 * @sli_mode: sli mode - 2/3
4294 * This function is called by the sli intialization code path
4295 * to issue config_port mailbox command. This function restarts the
4296 * HBA firmware and issues a config_port mailbox command to configure
4297 * the SLI interface in the sli mode specified by sli_mode
4298 * variable. The caller is not required to hold any locks.
4299 * The function returns 0 if successful, else returns negative error
4303 lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
4306 uint32_t resetcount = 0, rc = 0, done = 0;
4308 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4310 phba->link_state = LPFC_HBA_ERROR;
4314 phba->sli_rev = sli_mode;
4315 while (resetcount < 2 && !done) {
4316 spin_lock_irq(&phba->hbalock);
4317 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
4318 spin_unlock_irq(&phba->hbalock);
4319 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4320 lpfc_sli_brdrestart(phba);
4321 rc = lpfc_sli_chipset_init(phba);
4325 spin_lock_irq(&phba->hbalock);
4326 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4327 spin_unlock_irq(&phba->hbalock);
4330 /* Call pre CONFIG_PORT mailbox command initialization. A
4331 * value of 0 means the call was successful. Any other
4332 * nonzero value is a failure, but if ERESTART is returned,
4333 * the driver may reset the HBA and try again.
4335 rc = lpfc_config_port_prep(phba);
4336 if (rc == -ERESTART) {
4337 phba->link_state = LPFC_LINK_UNKNOWN;
4342 phba->link_state = LPFC_INIT_MBX_CMDS;
4343 lpfc_config_port(phba, pmb);
4344 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
4345 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
4346 LPFC_SLI3_HBQ_ENABLED |
4347 LPFC_SLI3_CRP_ENABLED |
4348 LPFC_SLI3_BG_ENABLED |
4349 LPFC_SLI3_DSS_ENABLED);
4350 if (rc != MBX_SUCCESS) {
4351 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4352 "0442 Adapter failed to init, mbxCmd x%x "
4353 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
4354 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
4355 spin_lock_irq(&phba->hbalock);
4356 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
4357 spin_unlock_irq(&phba->hbalock);
4360 /* Allow asynchronous mailbox command to go through */
4361 spin_lock_irq(&phba->hbalock);
4362 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
4363 spin_unlock_irq(&phba->hbalock);
4366 if ((pmb->u.mb.un.varCfgPort.casabt == 1) &&
4367 (pmb->u.mb.un.varCfgPort.gasabt == 0))
4368 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4369 "3110 Port did not grant ASABT\n");
4374 goto do_prep_failed;
4376 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
4377 if (!pmb->u.mb.un.varCfgPort.cMA) {
4379 goto do_prep_failed;
4381 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
4382 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
4383 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
4384 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
4385 phba->max_vpi : phba->max_vports;
4389 phba->fips_level = 0;
4390 phba->fips_spec_rev = 0;
4391 if (pmb->u.mb.un.varCfgPort.gdss) {
4392 phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
4393 phba->fips_level = pmb->u.mb.un.varCfgPort.fips_level;
4394 phba->fips_spec_rev = pmb->u.mb.un.varCfgPort.fips_rev;
4395 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4396 "2850 Security Crypto Active. FIPS x%d "
4398 phba->fips_level, phba->fips_spec_rev);
4400 if (pmb->u.mb.un.varCfgPort.sec_err) {
4401 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4402 "2856 Config Port Security Crypto "
4404 pmb->u.mb.un.varCfgPort.sec_err);
4406 if (pmb->u.mb.un.varCfgPort.gerbm)
4407 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
4408 if (pmb->u.mb.un.varCfgPort.gcrp)
4409 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
4411 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
4412 phba->port_gp = phba->mbox->us.s3_pgp.port;
4414 if (phba->cfg_enable_bg) {
4415 if (pmb->u.mb.un.varCfgPort.gbg)
4416 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
4418 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4419 "0443 Adapter did not grant "
4423 phba->hbq_get = NULL;
4424 phba->port_gp = phba->mbox->us.s2.port;
4428 mempool_free(pmb, phba->mbox_mem_pool);
4434 * lpfc_sli_hba_setup - SLI intialization function
4435 * @phba: Pointer to HBA context object.
4437 * This function is the main SLI intialization function. This function
4438 * is called by the HBA intialization code, HBA reset code and HBA
4439 * error attention handler code. Caller is not required to hold any
4440 * locks. This function issues config_port mailbox command to configure
4441 * the SLI, setup iocb rings and HBQ rings. In the end the function
4442 * calls the config_port_post function to issue init_link mailbox
4443 * command and to start the discovery. The function will return zero
4444 * if successful, else it will return negative error code.
4447 lpfc_sli_hba_setup(struct lpfc_hba *phba)
4453 switch (lpfc_sli_mode) {
4455 if (phba->cfg_enable_npiv) {
4456 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4457 "1824 NPIV enabled: Override lpfc_sli_mode "
4458 "parameter (%d) to auto (0).\n",
4468 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4469 "1819 Unrecognized lpfc_sli_mode "
4470 "parameter: %d.\n", lpfc_sli_mode);
4475 rc = lpfc_sli_config_port(phba, mode);
4477 if (rc && lpfc_sli_mode == 3)
4478 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4479 "1820 Unable to select SLI-3. "
4480 "Not supported by adapter.\n");
4481 if (rc && mode != 2)
4482 rc = lpfc_sli_config_port(phba, 2);
4484 goto lpfc_sli_hba_setup_error;
4486 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4487 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
4488 rc = pci_enable_pcie_error_reporting(phba->pcidev);
4490 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4491 "2709 This device supports "
4492 "Advanced Error Reporting (AER)\n");
4493 spin_lock_irq(&phba->hbalock);
4494 phba->hba_flag |= HBA_AER_ENABLED;
4495 spin_unlock_irq(&phba->hbalock);
4497 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4498 "2708 This device does not support "
4499 "Advanced Error Reporting (AER)\n");
4500 phba->cfg_aer_support = 0;
4504 if (phba->sli_rev == 3) {
4505 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
4506 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
4508 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
4509 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
4510 phba->sli3_options = 0;
4513 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4514 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
4515 phba->sli_rev, phba->max_vpi);
4516 rc = lpfc_sli_ring_map(phba);
4519 goto lpfc_sli_hba_setup_error;
4521 /* Initialize VPIs. */
4522 if (phba->sli_rev == LPFC_SLI_REV3) {
4524 * The VPI bitmask and physical ID array are allocated
4525 * and initialized once only - at driver load. A port
4526 * reset doesn't need to reinitialize this memory.
4528 if ((phba->vpi_bmask == NULL) && (phba->vpi_ids == NULL)) {
4529 longs = (phba->max_vpi + BITS_PER_LONG) / BITS_PER_LONG;
4530 phba->vpi_bmask = kzalloc(longs * sizeof(unsigned long),
4532 if (!phba->vpi_bmask) {
4534 goto lpfc_sli_hba_setup_error;
4537 phba->vpi_ids = kzalloc(
4538 (phba->max_vpi+1) * sizeof(uint16_t),
4540 if (!phba->vpi_ids) {
4541 kfree(phba->vpi_bmask);
4543 goto lpfc_sli_hba_setup_error;
4545 for (i = 0; i < phba->max_vpi; i++)
4546 phba->vpi_ids[i] = i;
4551 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
4552 rc = lpfc_sli_hbq_setup(phba);
4554 goto lpfc_sli_hba_setup_error;
4556 spin_lock_irq(&phba->hbalock);
4557 phba->sli.sli_flag |= LPFC_PROCESS_LA;
4558 spin_unlock_irq(&phba->hbalock);
4560 rc = lpfc_config_port_post(phba);
4562 goto lpfc_sli_hba_setup_error;
4566 lpfc_sli_hba_setup_error:
4567 phba->link_state = LPFC_HBA_ERROR;
4568 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4569 "0445 Firmware initialization failed\n");
4574 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
4575 * @phba: Pointer to HBA context object.
4576 * @mboxq: mailbox pointer.
4577 * This function issue a dump mailbox command to read config region
4578 * 23 and parse the records in the region and populate driver
4582 lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba)
4584 LPFC_MBOXQ_t *mboxq;
4585 struct lpfc_dmabuf *mp;
4586 struct lpfc_mqe *mqe;
4587 uint32_t data_length;
4590 /* Program the default value of vlan_id and fc_map */
4591 phba->valid_vlan = 0;
4592 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4593 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4594 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4596 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4600 mqe = &mboxq->u.mqe;
4601 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq)) {
4603 goto out_free_mboxq;
4606 mp = (struct lpfc_dmabuf *) mboxq->context1;
4607 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4609 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4610 "(%d):2571 Mailbox cmd x%x Status x%x "
4611 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4612 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4613 "CQ: x%x x%x x%x x%x\n",
4614 mboxq->vport ? mboxq->vport->vpi : 0,
4615 bf_get(lpfc_mqe_command, mqe),
4616 bf_get(lpfc_mqe_status, mqe),
4617 mqe->un.mb_words[0], mqe->un.mb_words[1],
4618 mqe->un.mb_words[2], mqe->un.mb_words[3],
4619 mqe->un.mb_words[4], mqe->un.mb_words[5],
4620 mqe->un.mb_words[6], mqe->un.mb_words[7],
4621 mqe->un.mb_words[8], mqe->un.mb_words[9],
4622 mqe->un.mb_words[10], mqe->un.mb_words[11],
4623 mqe->un.mb_words[12], mqe->un.mb_words[13],
4624 mqe->un.mb_words[14], mqe->un.mb_words[15],
4625 mqe->un.mb_words[16], mqe->un.mb_words[50],
4627 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
4628 mboxq->mcqe.trailer);
4631 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4634 goto out_free_mboxq;
4636 data_length = mqe->un.mb_words[5];
4637 if (data_length > DMP_RGN23_SIZE) {
4638 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4641 goto out_free_mboxq;
4644 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
4645 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4650 mempool_free(mboxq, phba->mbox_mem_pool);
4655 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
4656 * @phba: pointer to lpfc hba data structure.
4657 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
4658 * @vpd: pointer to the memory to hold resulting port vpd data.
4659 * @vpd_size: On input, the number of bytes allocated to @vpd.
4660 * On output, the number of data bytes in @vpd.
4662 * This routine executes a READ_REV SLI4 mailbox command. In
4663 * addition, this routine gets the port vpd data.
4667 * -ENOMEM - could not allocated memory.
4670 lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
4671 uint8_t *vpd, uint32_t *vpd_size)
4675 struct lpfc_dmabuf *dmabuf;
4676 struct lpfc_mqe *mqe;
4678 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4683 * Get a DMA buffer for the vpd data resulting from the READ_REV
4686 dma_size = *vpd_size;
4687 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4691 if (!dmabuf->virt) {
4695 memset(dmabuf->virt, 0, dma_size);
4698 * The SLI4 implementation of READ_REV conflicts at word1,
4699 * bits 31:16 and SLI4 adds vpd functionality not present
4700 * in SLI3. This code corrects the conflicts.
4702 lpfc_read_rev(phba, mboxq);
4703 mqe = &mboxq->u.mqe;
4704 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
4705 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
4706 mqe->un.read_rev.word1 &= 0x0000FFFF;
4707 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
4708 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
4710 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4712 dma_free_coherent(&phba->pcidev->dev, dma_size,
4713 dmabuf->virt, dmabuf->phys);
4719 * The available vpd length cannot be bigger than the
4720 * DMA buffer passed to the port. Catch the less than
4721 * case and update the caller's size.
4723 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
4724 *vpd_size = mqe->un.read_rev.avail_vpd_len;
4726 memcpy(vpd, dmabuf->virt, *vpd_size);
4728 dma_free_coherent(&phba->pcidev->dev, dma_size,
4729 dmabuf->virt, dmabuf->phys);
4735 * lpfc_sli4_retrieve_pport_name - Retrieve SLI4 device physical port name
4736 * @phba: pointer to lpfc hba data structure.
4738 * This routine retrieves SLI4 device physical port name this PCI function
4743 * otherwise - failed to retrieve physical port name
4746 lpfc_sli4_retrieve_pport_name(struct lpfc_hba *phba)
4748 LPFC_MBOXQ_t *mboxq;
4749 struct lpfc_mbx_get_cntl_attributes *mbx_cntl_attr;
4750 struct lpfc_controller_attribute *cntl_attr;
4751 struct lpfc_mbx_get_port_name *get_port_name;
4752 void *virtaddr = NULL;
4753 uint32_t alloclen, reqlen;
4754 uint32_t shdr_status, shdr_add_status;
4755 union lpfc_sli4_cfg_shdr *shdr;
4756 char cport_name = 0;
4759 /* We assume nothing at this point */
4760 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
4761 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_NON;
4763 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4766 /* obtain link type and link number via READ_CONFIG */
4767 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
4768 lpfc_sli4_read_config(phba);
4769 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL)
4770 goto retrieve_ppname;
4772 /* obtain link type and link number via COMMON_GET_CNTL_ATTRIBUTES */
4773 reqlen = sizeof(struct lpfc_mbx_get_cntl_attributes);
4774 alloclen = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
4775 LPFC_MBOX_OPCODE_GET_CNTL_ATTRIBUTES, reqlen,
4776 LPFC_SLI4_MBX_NEMBED);
4777 if (alloclen < reqlen) {
4778 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4779 "3084 Allocated DMA memory size (%d) is "
4780 "less than the requested DMA memory size "
4781 "(%d)\n", alloclen, reqlen);
4783 goto out_free_mboxq;
4785 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4786 virtaddr = mboxq->sge_array->addr[0];
4787 mbx_cntl_attr = (struct lpfc_mbx_get_cntl_attributes *)virtaddr;
4788 shdr = &mbx_cntl_attr->cfg_shdr;
4789 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
4790 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
4791 if (shdr_status || shdr_add_status || rc) {
4792 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4793 "3085 Mailbox x%x (x%x/x%x) failed, "
4794 "rc:x%x, status:x%x, add_status:x%x\n",
4795 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4796 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
4797 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
4798 rc, shdr_status, shdr_add_status);
4800 goto out_free_mboxq;
4802 cntl_attr = &mbx_cntl_attr->cntl_attr;
4803 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
4804 phba->sli4_hba.lnk_info.lnk_tp =
4805 bf_get(lpfc_cntl_attr_lnk_type, cntl_attr);
4806 phba->sli4_hba.lnk_info.lnk_no =
4807 bf_get(lpfc_cntl_attr_lnk_numb, cntl_attr);
4808 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4809 "3086 lnk_type:%d, lnk_numb:%d\n",
4810 phba->sli4_hba.lnk_info.lnk_tp,
4811 phba->sli4_hba.lnk_info.lnk_no);
4814 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
4815 LPFC_MBOX_OPCODE_GET_PORT_NAME,
4816 sizeof(struct lpfc_mbx_get_port_name) -
4817 sizeof(struct lpfc_sli4_cfg_mhdr),
4818 LPFC_SLI4_MBX_EMBED);
4819 get_port_name = &mboxq->u.mqe.un.get_port_name;
4820 shdr = (union lpfc_sli4_cfg_shdr *)&get_port_name->header.cfg_shdr;
4821 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_OPCODE_VERSION_1);
4822 bf_set(lpfc_mbx_get_port_name_lnk_type, &get_port_name->u.request,
4823 phba->sli4_hba.lnk_info.lnk_tp);
4824 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4825 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
4826 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
4827 if (shdr_status || shdr_add_status || rc) {
4828 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4829 "3087 Mailbox x%x (x%x/x%x) failed: "
4830 "rc:x%x, status:x%x, add_status:x%x\n",
4831 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4832 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
4833 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
4834 rc, shdr_status, shdr_add_status);
4836 goto out_free_mboxq;
4838 switch (phba->sli4_hba.lnk_info.lnk_no) {
4839 case LPFC_LINK_NUMBER_0:
4840 cport_name = bf_get(lpfc_mbx_get_port_name_name0,
4841 &get_port_name->u.response);
4842 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4844 case LPFC_LINK_NUMBER_1:
4845 cport_name = bf_get(lpfc_mbx_get_port_name_name1,
4846 &get_port_name->u.response);
4847 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4849 case LPFC_LINK_NUMBER_2:
4850 cport_name = bf_get(lpfc_mbx_get_port_name_name2,
4851 &get_port_name->u.response);
4852 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4854 case LPFC_LINK_NUMBER_3:
4855 cport_name = bf_get(lpfc_mbx_get_port_name_name3,
4856 &get_port_name->u.response);
4857 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4863 if (phba->sli4_hba.pport_name_sta == LPFC_SLI4_PPNAME_GET) {
4864 phba->Port[0] = cport_name;
4865 phba->Port[1] = '\0';
4866 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4867 "3091 SLI get port name: %s\n", phba->Port);
4871 if (rc != MBX_TIMEOUT) {
4872 if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
4873 lpfc_sli4_mbox_cmd_free(phba, mboxq);
4875 mempool_free(mboxq, phba->mbox_mem_pool);
4881 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
4882 * @phba: pointer to lpfc hba data structure.
4884 * This routine is called to explicitly arm the SLI4 device's completion and
4888 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
4892 lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM);
4893 lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM);
4895 if (phba->sli4_hba.fcp_cq) {
4897 lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[fcp_eqidx],
4899 while (++fcp_eqidx < phba->cfg_fcp_eq_count);
4901 lpfc_sli4_eq_release(phba->sli4_hba.sp_eq, LPFC_QUEUE_REARM);
4902 if (phba->sli4_hba.fp_eq) {
4903 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count;
4905 lpfc_sli4_eq_release(phba->sli4_hba.fp_eq[fcp_eqidx],
4911 * lpfc_sli4_get_avail_extnt_rsrc - Get available resource extent count.
4912 * @phba: Pointer to HBA context object.
4913 * @type: The resource extent type.
4914 * @extnt_count: buffer to hold port available extent count.
4915 * @extnt_size: buffer to hold element count per extent.
4917 * This function calls the port and retrievs the number of available
4918 * extents and their size for a particular extent type.
4920 * Returns: 0 if successful. Nonzero otherwise.
4923 lpfc_sli4_get_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type,
4924 uint16_t *extnt_count, uint16_t *extnt_size)
4929 struct lpfc_mbx_get_rsrc_extent_info *rsrc_info;
4932 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4936 /* Find out how many extents are available for this resource type */
4937 length = (sizeof(struct lpfc_mbx_get_rsrc_extent_info) -
4938 sizeof(struct lpfc_sli4_cfg_mhdr));
4939 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
4940 LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO,
4941 length, LPFC_SLI4_MBX_EMBED);
4943 /* Send an extents count of 0 - the GET doesn't use it. */
4944 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
4945 LPFC_SLI4_MBX_EMBED);
4951 if (!phba->sli4_hba.intr_enable)
4952 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
4954 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
4955 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
4962 rsrc_info = &mbox->u.mqe.un.rsrc_extent_info;
4963 if (bf_get(lpfc_mbox_hdr_status,
4964 &rsrc_info->header.cfg_shdr.response)) {
4965 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
4966 "2930 Failed to get resource extents "
4967 "Status 0x%x Add'l Status 0x%x\n",
4968 bf_get(lpfc_mbox_hdr_status,
4969 &rsrc_info->header.cfg_shdr.response),
4970 bf_get(lpfc_mbox_hdr_add_status,
4971 &rsrc_info->header.cfg_shdr.response));
4976 *extnt_count = bf_get(lpfc_mbx_get_rsrc_extent_info_cnt,
4978 *extnt_size = bf_get(lpfc_mbx_get_rsrc_extent_info_size,
4981 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4982 "3162 Retrieved extents type-%d from port: count:%d, "
4983 "size:%d\n", type, *extnt_count, *extnt_size);
4986 mempool_free(mbox, phba->mbox_mem_pool);
4991 * lpfc_sli4_chk_avail_extnt_rsrc - Check for available SLI4 resource extents.
4992 * @phba: Pointer to HBA context object.
4993 * @type: The extent type to check.
4995 * This function reads the current available extents from the port and checks
4996 * if the extent count or extent size has changed since the last access.
4997 * Callers use this routine post port reset to understand if there is a
4998 * extent reprovisioning requirement.
5001 * -Error: error indicates problem.
5002 * 1: Extent count or size has changed.
5006 lpfc_sli4_chk_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type)
5008 uint16_t curr_ext_cnt, rsrc_ext_cnt;
5009 uint16_t size_diff, rsrc_ext_size;
5011 struct lpfc_rsrc_blks *rsrc_entry;
5012 struct list_head *rsrc_blk_list = NULL;
5016 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5023 case LPFC_RSC_TYPE_FCOE_RPI:
5024 rsrc_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5026 case LPFC_RSC_TYPE_FCOE_VPI:
5027 rsrc_blk_list = &phba->lpfc_vpi_blk_list;
5029 case LPFC_RSC_TYPE_FCOE_XRI:
5030 rsrc_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5032 case LPFC_RSC_TYPE_FCOE_VFI:
5033 rsrc_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5039 list_for_each_entry(rsrc_entry, rsrc_blk_list, list) {
5041 if (rsrc_entry->rsrc_size != rsrc_ext_size)
5045 if (curr_ext_cnt != rsrc_ext_cnt || size_diff != 0)
5052 * lpfc_sli4_cfg_post_extnts -
5053 * @phba: Pointer to HBA context object.
5054 * @extnt_cnt - number of available extents.
5055 * @type - the extent type (rpi, xri, vfi, vpi).
5056 * @emb - buffer to hold either MBX_EMBED or MBX_NEMBED operation.
5057 * @mbox - pointer to the caller's allocated mailbox structure.
5059 * This function executes the extents allocation request. It also
5060 * takes care of the amount of memory needed to allocate or get the
5061 * allocated extents. It is the caller's responsibility to evaluate
5065 * -Error: Error value describes the condition found.
5069 lpfc_sli4_cfg_post_extnts(struct lpfc_hba *phba, uint16_t extnt_cnt,
5070 uint16_t type, bool *emb, LPFC_MBOXQ_t *mbox)
5075 uint32_t alloc_len, mbox_tmo;
5077 /* Calculate the total requested length of the dma memory */
5078 req_len = extnt_cnt * sizeof(uint16_t);
5081 * Calculate the size of an embedded mailbox. The uint32_t
5082 * accounts for extents-specific word.
5084 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
5088 * Presume the allocation and response will fit into an embedded
5089 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5091 *emb = LPFC_SLI4_MBX_EMBED;
5092 if (req_len > emb_len) {
5093 req_len = extnt_cnt * sizeof(uint16_t) +
5094 sizeof(union lpfc_sli4_cfg_shdr) +
5096 *emb = LPFC_SLI4_MBX_NEMBED;
5099 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5100 LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT,
5102 if (alloc_len < req_len) {
5103 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5104 "2982 Allocated DMA memory size (x%x) is "
5105 "less than the requested DMA memory "
5106 "size (x%x)\n", alloc_len, req_len);
5109 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, extnt_cnt, type, *emb);
5113 if (!phba->sli4_hba.intr_enable)
5114 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5116 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5117 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5126 * lpfc_sli4_alloc_extent - Allocate an SLI4 resource extent.
5127 * @phba: Pointer to HBA context object.
5128 * @type: The resource extent type to allocate.
5130 * This function allocates the number of elements for the specified
5134 lpfc_sli4_alloc_extent(struct lpfc_hba *phba, uint16_t type)
5137 uint16_t rsrc_id_cnt, rsrc_cnt, rsrc_size;
5138 uint16_t rsrc_id, rsrc_start, j, k;
5141 unsigned long longs;
5142 unsigned long *bmask;
5143 struct lpfc_rsrc_blks *rsrc_blks;
5146 struct lpfc_id_range *id_array = NULL;
5147 void *virtaddr = NULL;
5148 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5149 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5150 struct list_head *ext_blk_list;
5152 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5158 if ((rsrc_cnt == 0) || (rsrc_size == 0)) {
5159 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5160 "3009 No available Resource Extents "
5161 "for resource type 0x%x: Count: 0x%x, "
5162 "Size 0x%x\n", type, rsrc_cnt,
5167 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_INIT | LOG_SLI,
5168 "2903 Post resource extents type-0x%x: "
5169 "count:%d, size %d\n", type, rsrc_cnt, rsrc_size);
5171 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5175 rc = lpfc_sli4_cfg_post_extnts(phba, rsrc_cnt, type, &emb, mbox);
5182 * Figure out where the response is located. Then get local pointers
5183 * to the response data. The port does not guarantee to respond to
5184 * all extents counts request so update the local variable with the
5185 * allocated count from the port.
5187 if (emb == LPFC_SLI4_MBX_EMBED) {
5188 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
5189 id_array = &rsrc_ext->u.rsp.id[0];
5190 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
5192 virtaddr = mbox->sge_array->addr[0];
5193 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
5194 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
5195 id_array = &n_rsrc->id;
5198 longs = ((rsrc_cnt * rsrc_size) + BITS_PER_LONG - 1) / BITS_PER_LONG;
5199 rsrc_id_cnt = rsrc_cnt * rsrc_size;
5202 * Based on the resource size and count, correct the base and max
5205 length = sizeof(struct lpfc_rsrc_blks);
5207 case LPFC_RSC_TYPE_FCOE_RPI:
5208 phba->sli4_hba.rpi_bmask = kzalloc(longs *
5209 sizeof(unsigned long),
5211 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5215 phba->sli4_hba.rpi_ids = kzalloc(rsrc_id_cnt *
5218 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5219 kfree(phba->sli4_hba.rpi_bmask);
5225 * The next_rpi was initialized with the maximum available
5226 * count but the port may allocate a smaller number. Catch
5227 * that case and update the next_rpi.
5229 phba->sli4_hba.next_rpi = rsrc_id_cnt;
5231 /* Initialize local ptrs for common extent processing later. */
5232 bmask = phba->sli4_hba.rpi_bmask;
5233 ids = phba->sli4_hba.rpi_ids;
5234 ext_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5236 case LPFC_RSC_TYPE_FCOE_VPI:
5237 phba->vpi_bmask = kzalloc(longs *
5238 sizeof(unsigned long),
5240 if (unlikely(!phba->vpi_bmask)) {
5244 phba->vpi_ids = kzalloc(rsrc_id_cnt *
5247 if (unlikely(!phba->vpi_ids)) {
5248 kfree(phba->vpi_bmask);
5253 /* Initialize local ptrs for common extent processing later. */
5254 bmask = phba->vpi_bmask;
5255 ids = phba->vpi_ids;
5256 ext_blk_list = &phba->lpfc_vpi_blk_list;
5258 case LPFC_RSC_TYPE_FCOE_XRI:
5259 phba->sli4_hba.xri_bmask = kzalloc(longs *
5260 sizeof(unsigned long),
5262 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5266 phba->sli4_hba.max_cfg_param.xri_used = 0;
5267 phba->sli4_hba.xri_ids = kzalloc(rsrc_id_cnt *
5270 if (unlikely(!phba->sli4_hba.xri_ids)) {
5271 kfree(phba->sli4_hba.xri_bmask);
5276 /* Initialize local ptrs for common extent processing later. */
5277 bmask = phba->sli4_hba.xri_bmask;
5278 ids = phba->sli4_hba.xri_ids;
5279 ext_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5281 case LPFC_RSC_TYPE_FCOE_VFI:
5282 phba->sli4_hba.vfi_bmask = kzalloc(longs *
5283 sizeof(unsigned long),
5285 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5289 phba->sli4_hba.vfi_ids = kzalloc(rsrc_id_cnt *
5292 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5293 kfree(phba->sli4_hba.vfi_bmask);
5298 /* Initialize local ptrs for common extent processing later. */
5299 bmask = phba->sli4_hba.vfi_bmask;
5300 ids = phba->sli4_hba.vfi_ids;
5301 ext_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5304 /* Unsupported Opcode. Fail call. */
5308 ext_blk_list = NULL;
5313 * Complete initializing the extent configuration with the
5314 * allocated ids assigned to this function. The bitmask serves
5315 * as an index into the array and manages the available ids. The
5316 * array just stores the ids communicated to the port via the wqes.
5318 for (i = 0, j = 0, k = 0; i < rsrc_cnt; i++) {
5320 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_0,
5323 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_1,
5326 rsrc_blks = kzalloc(length, GFP_KERNEL);
5327 if (unlikely(!rsrc_blks)) {
5333 rsrc_blks->rsrc_start = rsrc_id;
5334 rsrc_blks->rsrc_size = rsrc_size;
5335 list_add_tail(&rsrc_blks->list, ext_blk_list);
5336 rsrc_start = rsrc_id;
5337 if ((type == LPFC_RSC_TYPE_FCOE_XRI) && (j == 0))
5338 phba->sli4_hba.scsi_xri_start = rsrc_start +
5339 lpfc_sli4_get_els_iocb_cnt(phba);
5341 while (rsrc_id < (rsrc_start + rsrc_size)) {
5346 /* Entire word processed. Get next word.*/
5351 lpfc_sli4_mbox_cmd_free(phba, mbox);
5356 * lpfc_sli4_dealloc_extent - Deallocate an SLI4 resource extent.
5357 * @phba: Pointer to HBA context object.
5358 * @type: the extent's type.
5360 * This function deallocates all extents of a particular resource type.
5361 * SLI4 does not allow for deallocating a particular extent range. It
5362 * is the caller's responsibility to release all kernel memory resources.
5365 lpfc_sli4_dealloc_extent(struct lpfc_hba *phba, uint16_t type)
5368 uint32_t length, mbox_tmo = 0;
5370 struct lpfc_mbx_dealloc_rsrc_extents *dealloc_rsrc;
5371 struct lpfc_rsrc_blks *rsrc_blk, *rsrc_blk_next;
5373 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5378 * This function sends an embedded mailbox because it only sends the
5379 * the resource type. All extents of this type are released by the
5382 length = (sizeof(struct lpfc_mbx_dealloc_rsrc_extents) -
5383 sizeof(struct lpfc_sli4_cfg_mhdr));
5384 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5385 LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT,
5386 length, LPFC_SLI4_MBX_EMBED);
5388 /* Send an extents count of 0 - the dealloc doesn't use it. */
5389 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5390 LPFC_SLI4_MBX_EMBED);
5395 if (!phba->sli4_hba.intr_enable)
5396 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5398 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5399 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5406 dealloc_rsrc = &mbox->u.mqe.un.dealloc_rsrc_extents;
5407 if (bf_get(lpfc_mbox_hdr_status,
5408 &dealloc_rsrc->header.cfg_shdr.response)) {
5409 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5410 "2919 Failed to release resource extents "
5411 "for type %d - Status 0x%x Add'l Status 0x%x. "
5412 "Resource memory not released.\n",
5414 bf_get(lpfc_mbox_hdr_status,
5415 &dealloc_rsrc->header.cfg_shdr.response),
5416 bf_get(lpfc_mbox_hdr_add_status,
5417 &dealloc_rsrc->header.cfg_shdr.response));
5422 /* Release kernel memory resources for the specific type. */
5424 case LPFC_RSC_TYPE_FCOE_VPI:
5425 kfree(phba->vpi_bmask);
5426 kfree(phba->vpi_ids);
5427 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5428 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5429 &phba->lpfc_vpi_blk_list, list) {
5430 list_del_init(&rsrc_blk->list);
5434 case LPFC_RSC_TYPE_FCOE_XRI:
5435 kfree(phba->sli4_hba.xri_bmask);
5436 kfree(phba->sli4_hba.xri_ids);
5437 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5438 &phba->sli4_hba.lpfc_xri_blk_list, list) {
5439 list_del_init(&rsrc_blk->list);
5443 case LPFC_RSC_TYPE_FCOE_VFI:
5444 kfree(phba->sli4_hba.vfi_bmask);
5445 kfree(phba->sli4_hba.vfi_ids);
5446 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5447 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5448 &phba->sli4_hba.lpfc_vfi_blk_list, list) {
5449 list_del_init(&rsrc_blk->list);
5453 case LPFC_RSC_TYPE_FCOE_RPI:
5454 /* RPI bitmask and physical id array are cleaned up earlier. */
5455 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5456 &phba->sli4_hba.lpfc_rpi_blk_list, list) {
5457 list_del_init(&rsrc_blk->list);
5465 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5468 mempool_free(mbox, phba->mbox_mem_pool);
5473 * lpfc_sli4_alloc_resource_identifiers - Allocate all SLI4 resource extents.
5474 * @phba: Pointer to HBA context object.
5476 * This function allocates all SLI4 resource identifiers.
5479 lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba *phba)
5481 int i, rc, error = 0;
5482 uint16_t count, base;
5483 unsigned long longs;
5485 if (!phba->sli4_hba.rpi_hdrs_in_use)
5486 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
5487 if (phba->sli4_hba.extents_in_use) {
5489 * The port supports resource extents. The XRI, VPI, VFI, RPI
5490 * resource extent count must be read and allocated before
5491 * provisioning the resource id arrays.
5493 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
5494 LPFC_IDX_RSRC_RDY) {
5496 * Extent-based resources are set - the driver could
5497 * be in a port reset. Figure out if any corrective
5498 * actions need to be taken.
5500 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5501 LPFC_RSC_TYPE_FCOE_VFI);
5504 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5505 LPFC_RSC_TYPE_FCOE_VPI);
5508 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5509 LPFC_RSC_TYPE_FCOE_XRI);
5512 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5513 LPFC_RSC_TYPE_FCOE_RPI);
5518 * It's possible that the number of resources
5519 * provided to this port instance changed between
5520 * resets. Detect this condition and reallocate
5521 * resources. Otherwise, there is no action.
5524 lpfc_printf_log(phba, KERN_INFO,
5525 LOG_MBOX | LOG_INIT,
5526 "2931 Detected extent resource "
5527 "change. Reallocating all "
5529 rc = lpfc_sli4_dealloc_extent(phba,
5530 LPFC_RSC_TYPE_FCOE_VFI);
5531 rc = lpfc_sli4_dealloc_extent(phba,
5532 LPFC_RSC_TYPE_FCOE_VPI);
5533 rc = lpfc_sli4_dealloc_extent(phba,
5534 LPFC_RSC_TYPE_FCOE_XRI);
5535 rc = lpfc_sli4_dealloc_extent(phba,
5536 LPFC_RSC_TYPE_FCOE_RPI);
5541 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
5545 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
5549 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
5553 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
5556 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
5561 * The port does not support resource extents. The XRI, VPI,
5562 * VFI, RPI resource ids were determined from READ_CONFIG.
5563 * Just allocate the bitmasks and provision the resource id
5564 * arrays. If a port reset is active, the resources don't
5565 * need any action - just exit.
5567 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
5568 LPFC_IDX_RSRC_RDY) {
5569 lpfc_sli4_dealloc_resource_identifiers(phba);
5570 lpfc_sli4_remove_rpis(phba);
5573 count = phba->sli4_hba.max_cfg_param.max_rpi;
5574 base = phba->sli4_hba.max_cfg_param.rpi_base;
5575 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5576 phba->sli4_hba.rpi_bmask = kzalloc(longs *
5577 sizeof(unsigned long),
5579 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5583 phba->sli4_hba.rpi_ids = kzalloc(count *
5586 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5588 goto free_rpi_bmask;
5591 for (i = 0; i < count; i++)
5592 phba->sli4_hba.rpi_ids[i] = base + i;
5595 count = phba->sli4_hba.max_cfg_param.max_vpi;
5596 base = phba->sli4_hba.max_cfg_param.vpi_base;
5597 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5598 phba->vpi_bmask = kzalloc(longs *
5599 sizeof(unsigned long),
5601 if (unlikely(!phba->vpi_bmask)) {
5605 phba->vpi_ids = kzalloc(count *
5608 if (unlikely(!phba->vpi_ids)) {
5610 goto free_vpi_bmask;
5613 for (i = 0; i < count; i++)
5614 phba->vpi_ids[i] = base + i;
5617 count = phba->sli4_hba.max_cfg_param.max_xri;
5618 base = phba->sli4_hba.max_cfg_param.xri_base;
5619 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5620 phba->sli4_hba.xri_bmask = kzalloc(longs *
5621 sizeof(unsigned long),
5623 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5627 phba->sli4_hba.max_cfg_param.xri_used = 0;
5628 phba->sli4_hba.xri_ids = kzalloc(count *
5631 if (unlikely(!phba->sli4_hba.xri_ids)) {
5633 goto free_xri_bmask;
5636 for (i = 0; i < count; i++)
5637 phba->sli4_hba.xri_ids[i] = base + i;
5640 count = phba->sli4_hba.max_cfg_param.max_vfi;
5641 base = phba->sli4_hba.max_cfg_param.vfi_base;
5642 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5643 phba->sli4_hba.vfi_bmask = kzalloc(longs *
5644 sizeof(unsigned long),
5646 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5650 phba->sli4_hba.vfi_ids = kzalloc(count *
5653 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5655 goto free_vfi_bmask;
5658 for (i = 0; i < count; i++)
5659 phba->sli4_hba.vfi_ids[i] = base + i;
5662 * Mark all resources ready. An HBA reset doesn't need
5663 * to reset the initialization.
5665 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
5671 kfree(phba->sli4_hba.vfi_bmask);
5673 kfree(phba->sli4_hba.xri_ids);
5675 kfree(phba->sli4_hba.xri_bmask);
5677 kfree(phba->vpi_ids);
5679 kfree(phba->vpi_bmask);
5681 kfree(phba->sli4_hba.rpi_ids);
5683 kfree(phba->sli4_hba.rpi_bmask);
5689 * lpfc_sli4_dealloc_resource_identifiers - Deallocate all SLI4 resource extents.
5690 * @phba: Pointer to HBA context object.
5692 * This function allocates the number of elements for the specified
5696 lpfc_sli4_dealloc_resource_identifiers(struct lpfc_hba *phba)
5698 if (phba->sli4_hba.extents_in_use) {
5699 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
5700 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
5701 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
5702 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
5704 kfree(phba->vpi_bmask);
5705 kfree(phba->vpi_ids);
5706 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5707 kfree(phba->sli4_hba.xri_bmask);
5708 kfree(phba->sli4_hba.xri_ids);
5709 kfree(phba->sli4_hba.vfi_bmask);
5710 kfree(phba->sli4_hba.vfi_ids);
5711 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5712 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5719 * lpfc_sli4_get_allocated_extnts - Get the port's allocated extents.
5720 * @phba: Pointer to HBA context object.
5721 * @type: The resource extent type.
5722 * @extnt_count: buffer to hold port extent count response
5723 * @extnt_size: buffer to hold port extent size response.
5725 * This function calls the port to read the host allocated extents
5726 * for a particular type.
5729 lpfc_sli4_get_allocated_extnts(struct lpfc_hba *phba, uint16_t type,
5730 uint16_t *extnt_cnt, uint16_t *extnt_size)
5734 uint16_t curr_blks = 0;
5735 uint32_t req_len, emb_len;
5736 uint32_t alloc_len, mbox_tmo;
5737 struct list_head *blk_list_head;
5738 struct lpfc_rsrc_blks *rsrc_blk;
5740 void *virtaddr = NULL;
5741 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5742 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5743 union lpfc_sli4_cfg_shdr *shdr;
5746 case LPFC_RSC_TYPE_FCOE_VPI:
5747 blk_list_head = &phba->lpfc_vpi_blk_list;
5749 case LPFC_RSC_TYPE_FCOE_XRI:
5750 blk_list_head = &phba->sli4_hba.lpfc_xri_blk_list;
5752 case LPFC_RSC_TYPE_FCOE_VFI:
5753 blk_list_head = &phba->sli4_hba.lpfc_vfi_blk_list;
5755 case LPFC_RSC_TYPE_FCOE_RPI:
5756 blk_list_head = &phba->sli4_hba.lpfc_rpi_blk_list;
5762 /* Count the number of extents currently allocatd for this type. */
5763 list_for_each_entry(rsrc_blk, blk_list_head, list) {
5764 if (curr_blks == 0) {
5766 * The GET_ALLOCATED mailbox does not return the size,
5767 * just the count. The size should be just the size
5768 * stored in the current allocated block and all sizes
5769 * for an extent type are the same so set the return
5772 *extnt_size = rsrc_blk->rsrc_size;
5777 /* Calculate the total requested length of the dma memory. */
5778 req_len = curr_blks * sizeof(uint16_t);
5781 * Calculate the size of an embedded mailbox. The uint32_t
5782 * accounts for extents-specific word.
5784 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
5788 * Presume the allocation and response will fit into an embedded
5789 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5791 emb = LPFC_SLI4_MBX_EMBED;
5793 if (req_len > emb_len) {
5794 req_len = curr_blks * sizeof(uint16_t) +
5795 sizeof(union lpfc_sli4_cfg_shdr) +
5797 emb = LPFC_SLI4_MBX_NEMBED;
5800 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5803 memset(mbox, 0, sizeof(LPFC_MBOXQ_t));
5805 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5806 LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT,
5808 if (alloc_len < req_len) {
5809 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5810 "2983 Allocated DMA memory size (x%x) is "
5811 "less than the requested DMA memory "
5812 "size (x%x)\n", alloc_len, req_len);
5816 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, curr_blks, type, emb);
5822 if (!phba->sli4_hba.intr_enable)
5823 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5825 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5826 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5835 * Figure out where the response is located. Then get local pointers
5836 * to the response data. The port does not guarantee to respond to
5837 * all extents counts request so update the local variable with the
5838 * allocated count from the port.
5840 if (emb == LPFC_SLI4_MBX_EMBED) {
5841 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
5842 shdr = &rsrc_ext->header.cfg_shdr;
5843 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
5845 virtaddr = mbox->sge_array->addr[0];
5846 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
5847 shdr = &n_rsrc->cfg_shdr;
5848 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
5851 if (bf_get(lpfc_mbox_hdr_status, &shdr->response)) {
5852 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5853 "2984 Failed to read allocated resources "
5854 "for type %d - Status 0x%x Add'l Status 0x%x.\n",
5856 bf_get(lpfc_mbox_hdr_status, &shdr->response),
5857 bf_get(lpfc_mbox_hdr_add_status, &shdr->response));
5862 lpfc_sli4_mbox_cmd_free(phba, mbox);
5867 * lpfc_sli4_repost_els_sgl_list - Repsot the els buffers sgl pages as block
5868 * @phba: pointer to lpfc hba data structure.
5870 * This routine walks the list of els buffers that have been allocated and
5871 * repost them to the port by using SGL block post. This is needed after a
5872 * pci_function_reset/warm_start or start. It attempts to construct blocks
5873 * of els buffer sgls which contains contiguous xris and uses the non-embedded
5874 * SGL block post mailbox commands to post them to the port. For single els
5875 * buffer sgl with non-contiguous xri, if any, it shall use embedded SGL post
5876 * mailbox command for posting.
5878 * Returns: 0 = success, non-zero failure.
5881 lpfc_sli4_repost_els_sgl_list(struct lpfc_hba *phba)
5883 struct lpfc_sglq *sglq_entry = NULL;
5884 struct lpfc_sglq *sglq_entry_next = NULL;
5885 struct lpfc_sglq *sglq_entry_first = NULL;
5886 int status, post_cnt = 0, num_posted = 0, block_cnt = 0;
5887 int last_xritag = NO_XRI;
5888 LIST_HEAD(prep_sgl_list);
5889 LIST_HEAD(blck_sgl_list);
5890 LIST_HEAD(allc_sgl_list);
5891 LIST_HEAD(post_sgl_list);
5892 LIST_HEAD(free_sgl_list);
5894 spin_lock(&phba->hbalock);
5895 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &allc_sgl_list);
5896 spin_unlock(&phba->hbalock);
5898 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
5899 &allc_sgl_list, list) {
5900 list_del_init(&sglq_entry->list);
5902 if ((last_xritag != NO_XRI) &&
5903 (sglq_entry->sli4_xritag != last_xritag + 1)) {
5904 /* a hole in xri block, form a sgl posting block */
5905 list_splice_init(&prep_sgl_list, &blck_sgl_list);
5906 post_cnt = block_cnt - 1;
5907 /* prepare list for next posting block */
5908 list_add_tail(&sglq_entry->list, &prep_sgl_list);
5911 /* prepare list for next posting block */
5912 list_add_tail(&sglq_entry->list, &prep_sgl_list);
5913 /* enough sgls for non-embed sgl mbox command */
5914 if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
5915 list_splice_init(&prep_sgl_list,
5917 post_cnt = block_cnt;
5923 /* keep track of last sgl's xritag */
5924 last_xritag = sglq_entry->sli4_xritag;
5926 /* end of repost sgl list condition for els buffers */
5927 if (num_posted == phba->sli4_hba.els_xri_cnt) {
5928 if (post_cnt == 0) {
5929 list_splice_init(&prep_sgl_list,
5931 post_cnt = block_cnt;
5932 } else if (block_cnt == 1) {
5933 status = lpfc_sli4_post_sgl(phba,
5934 sglq_entry->phys, 0,
5935 sglq_entry->sli4_xritag);
5937 /* successful, put sgl to posted list */
5938 list_add_tail(&sglq_entry->list,
5941 /* Failure, put sgl to free list */
5942 lpfc_printf_log(phba, KERN_WARNING,
5944 "3159 Failed to post els "
5945 "sgl, xritag:x%x\n",
5946 sglq_entry->sli4_xritag);
5947 list_add_tail(&sglq_entry->list,
5949 spin_lock_irq(&phba->hbalock);
5950 phba->sli4_hba.els_xri_cnt--;
5951 spin_unlock_irq(&phba->hbalock);
5956 /* continue until a nembed page worth of sgls */
5960 /* post the els buffer list sgls as a block */
5961 status = lpfc_sli4_post_els_sgl_list(phba, &blck_sgl_list,
5965 /* success, put sgl list to posted sgl list */
5966 list_splice_init(&blck_sgl_list, &post_sgl_list);
5968 /* Failure, put sgl list to free sgl list */
5969 sglq_entry_first = list_first_entry(&blck_sgl_list,
5972 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5973 "3160 Failed to post els sgl-list, "
5975 sglq_entry_first->sli4_xritag,
5976 (sglq_entry_first->sli4_xritag +
5978 list_splice_init(&blck_sgl_list, &free_sgl_list);
5979 spin_lock_irq(&phba->hbalock);
5980 phba->sli4_hba.els_xri_cnt -= post_cnt;
5981 spin_unlock_irq(&phba->hbalock);
5984 /* don't reset xirtag due to hole in xri block */
5986 last_xritag = NO_XRI;
5988 /* reset els sgl post count for next round of posting */
5992 /* free the els sgls failed to post */
5993 lpfc_free_sgl_list(phba, &free_sgl_list);
5995 /* push els sgls posted to the availble list */
5996 if (!list_empty(&post_sgl_list)) {
5997 spin_lock(&phba->hbalock);
5998 list_splice_init(&post_sgl_list,
5999 &phba->sli4_hba.lpfc_sgl_list);
6000 spin_unlock(&phba->hbalock);
6002 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6003 "3161 Failure to post els sgl to port.\n");
6010 * lpfc_sli4_hba_setup - SLI4 device intialization PCI function
6011 * @phba: Pointer to HBA context object.
6013 * This function is the main SLI4 device intialization PCI function. This
6014 * function is called by the HBA intialization code, HBA reset code and
6015 * HBA error attention handler code. Caller is not required to hold any
6019 lpfc_sli4_hba_setup(struct lpfc_hba *phba)
6022 LPFC_MBOXQ_t *mboxq;
6023 struct lpfc_mqe *mqe;
6026 uint32_t ftr_rsp = 0;
6027 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
6028 struct lpfc_vport *vport = phba->pport;
6029 struct lpfc_dmabuf *mp;
6031 /* Perform a PCI function reset to start from clean */
6032 rc = lpfc_pci_function_reset(phba);
6036 /* Check the HBA Host Status Register for readyness */
6037 rc = lpfc_sli4_post_status_check(phba);
6041 spin_lock_irq(&phba->hbalock);
6042 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
6043 spin_unlock_irq(&phba->hbalock);
6047 * Allocate a single mailbox container for initializing the
6050 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6054 /* Issue READ_REV to collect vpd and FW information. */
6055 vpd_size = SLI4_PAGE_SIZE;
6056 vpd = kzalloc(vpd_size, GFP_KERNEL);
6062 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
6067 mqe = &mboxq->u.mqe;
6068 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
6069 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev))
6070 phba->hba_flag |= HBA_FCOE_MODE;
6072 phba->hba_flag &= ~HBA_FCOE_MODE;
6074 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
6076 phba->hba_flag |= HBA_FIP_SUPPORT;
6078 phba->hba_flag &= ~HBA_FIP_SUPPORT;
6080 phba->hba_flag &= ~HBA_FCP_IOQ_FLUSH;
6082 if (phba->sli_rev != LPFC_SLI_REV4) {
6083 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6084 "0376 READ_REV Error. SLI Level %d "
6085 "FCoE enabled %d\n",
6086 phba->sli_rev, phba->hba_flag & HBA_FCOE_MODE);
6093 * Continue initialization with default values even if driver failed
6094 * to read FCoE param config regions, only read parameters if the
6097 if (phba->hba_flag & HBA_FCOE_MODE &&
6098 lpfc_sli4_read_fcoe_params(phba))
6099 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_INIT,
6100 "2570 Failed to read FCoE parameters\n");
6103 * Retrieve sli4 device physical port name, failure of doing it
6104 * is considered as non-fatal.
6106 rc = lpfc_sli4_retrieve_pport_name(phba);
6108 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6109 "3080 Successful retrieving SLI4 device "
6110 "physical port name: %s.\n", phba->Port);
6113 * Evaluate the read rev and vpd data. Populate the driver
6114 * state with the results. If this routine fails, the failure
6115 * is not fatal as the driver will use generic values.
6117 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
6118 if (unlikely(!rc)) {
6119 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6120 "0377 Error %d parsing vpd. "
6121 "Using defaults.\n", rc);
6126 /* Save information as VPD data */
6127 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
6128 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
6129 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
6130 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
6132 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
6134 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
6136 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
6138 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
6139 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
6140 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
6141 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
6142 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
6143 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
6144 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6145 "(%d):0380 READ_REV Status x%x "
6146 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
6147 mboxq->vport ? mboxq->vport->vpi : 0,
6148 bf_get(lpfc_mqe_status, mqe),
6149 phba->vpd.rev.opFwName,
6150 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
6151 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
6154 * Discover the port's supported feature set and match it against the
6157 lpfc_request_features(phba, mboxq);
6158 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6165 * The port must support FCP initiator mode as this is the
6166 * only mode running in the host.
6168 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
6169 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6170 "0378 No support for fcpi mode.\n");
6173 if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh, &mqe->un.req_ftrs))
6174 phba->sli3_options |= LPFC_SLI4_PERFH_ENABLED;
6176 phba->sli3_options &= ~LPFC_SLI4_PERFH_ENABLED;
6178 * If the port cannot support the host's requested features
6179 * then turn off the global config parameters to disable the
6180 * feature in the driver. This is not a fatal error.
6182 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
6183 if (phba->cfg_enable_bg) {
6184 if (bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))
6185 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
6190 if (phba->max_vpi && phba->cfg_enable_npiv &&
6191 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6195 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6196 "0379 Feature Mismatch Data: x%08x %08x "
6197 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
6198 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
6199 phba->cfg_enable_npiv, phba->max_vpi);
6200 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
6201 phba->cfg_enable_bg = 0;
6202 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6203 phba->cfg_enable_npiv = 0;
6206 /* These SLI3 features are assumed in SLI4 */
6207 spin_lock_irq(&phba->hbalock);
6208 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
6209 spin_unlock_irq(&phba->hbalock);
6212 * Allocate all resources (xri,rpi,vpi,vfi) now. Subsequent
6213 * calls depends on these resources to complete port setup.
6215 rc = lpfc_sli4_alloc_resource_identifiers(phba);
6217 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6218 "2920 Failed to alloc Resource IDs "
6223 /* Read the port's service parameters. */
6224 rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
6226 phba->link_state = LPFC_HBA_ERROR;
6231 mboxq->vport = vport;
6232 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6233 mp = (struct lpfc_dmabuf *) mboxq->context1;
6234 if (rc == MBX_SUCCESS) {
6235 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
6240 * This memory was allocated by the lpfc_read_sparam routine. Release
6241 * it to the mbuf pool.
6243 lpfc_mbuf_free(phba, mp->virt, mp->phys);
6245 mboxq->context1 = NULL;
6247 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6248 "0382 READ_SPARAM command failed "
6249 "status %d, mbxStatus x%x\n",
6250 rc, bf_get(lpfc_mqe_status, mqe));
6251 phba->link_state = LPFC_HBA_ERROR;
6256 lpfc_update_vport_wwn(vport);
6258 /* Update the fc_host data structures with new wwn. */
6259 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
6260 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
6262 /* update host els and scsi xri-sgl sizes and mappings */
6263 rc = lpfc_sli4_xri_sgl_update(phba);
6265 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6266 "1400 Failed to update xri-sgl size and "
6267 "mapping: %d\n", rc);
6271 /* register the els sgl pool to the port */
6272 rc = lpfc_sli4_repost_els_sgl_list(phba);
6274 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6275 "0582 Error %d during els sgl post "
6281 /* register the allocated scsi sgl pool to the port */
6282 rc = lpfc_sli4_repost_scsi_sgl_list(phba);
6284 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6285 "0383 Error %d during scsi sgl post "
6287 /* Some Scsi buffers were moved to the abort scsi list */
6288 /* A pci function reset will repost them */
6293 /* Post the rpi header region to the device. */
6294 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
6296 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6297 "0393 Error %d during rpi post operation\n",
6302 lpfc_sli4_node_prep(phba);
6304 /* Create all the SLI4 queues */
6305 rc = lpfc_sli4_queue_create(phba);
6307 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6308 "3089 Failed to allocate queues\n");
6310 goto out_stop_timers;
6312 /* Set up all the queues to the device */
6313 rc = lpfc_sli4_queue_setup(phba);
6315 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6316 "0381 Error %d during queue setup.\n ", rc);
6317 goto out_destroy_queue;
6320 /* Arm the CQs and then EQs on device */
6321 lpfc_sli4_arm_cqeq_intr(phba);
6323 /* Indicate device interrupt mode */
6324 phba->sli4_hba.intr_enable = 1;
6326 /* Allow asynchronous mailbox command to go through */
6327 spin_lock_irq(&phba->hbalock);
6328 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
6329 spin_unlock_irq(&phba->hbalock);
6331 /* Post receive buffers to the device */
6332 lpfc_sli4_rb_setup(phba);
6334 /* Reset HBA FCF states after HBA reset */
6335 phba->fcf.fcf_flag = 0;
6336 phba->fcf.current_rec.flag = 0;
6338 /* Start the ELS watchdog timer */
6339 mod_timer(&vport->els_tmofunc,
6340 jiffies + HZ * (phba->fc_ratov * 2));
6342 /* Start heart beat timer */
6343 mod_timer(&phba->hb_tmofunc,
6344 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
6345 phba->hb_outstanding = 0;
6346 phba->last_completion_time = jiffies;
6348 /* Start error attention (ERATT) polling timer */
6349 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
6351 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
6352 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
6353 rc = pci_enable_pcie_error_reporting(phba->pcidev);
6355 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6356 "2829 This device supports "
6357 "Advanced Error Reporting (AER)\n");
6358 spin_lock_irq(&phba->hbalock);
6359 phba->hba_flag |= HBA_AER_ENABLED;
6360 spin_unlock_irq(&phba->hbalock);
6362 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6363 "2830 This device does not support "
6364 "Advanced Error Reporting (AER)\n");
6365 phba->cfg_aer_support = 0;
6370 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
6372 * The FC Port needs to register FCFI (index 0)
6374 lpfc_reg_fcfi(phba, mboxq);
6375 mboxq->vport = phba->pport;
6376 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6377 if (rc != MBX_SUCCESS)
6378 goto out_unset_queue;
6380 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi,
6381 &mboxq->u.mqe.un.reg_fcfi);
6383 /* Check if the port is configured to be disabled */
6384 lpfc_sli_read_link_ste(phba);
6388 * The port is ready, set the host's link state to LINK_DOWN
6389 * in preparation for link interrupts.
6391 spin_lock_irq(&phba->hbalock);
6392 phba->link_state = LPFC_LINK_DOWN;
6393 spin_unlock_irq(&phba->hbalock);
6394 if (!(phba->hba_flag & HBA_FCOE_MODE) &&
6395 (phba->hba_flag & LINK_DISABLED)) {
6396 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
6397 "3103 Adapter Link is disabled.\n");
6398 lpfc_down_link(phba, mboxq);
6399 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6400 if (rc != MBX_SUCCESS) {
6401 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
6402 "3104 Adapter failed to issue "
6403 "DOWN_LINK mbox cmd, rc:x%x\n", rc);
6404 goto out_unset_queue;
6406 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
6407 /* don't perform init_link on SLI4 FC port loopback test */
6408 if (!(phba->link_flag & LS_LOOPBACK_MODE)) {
6409 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
6411 goto out_unset_queue;
6414 mempool_free(mboxq, phba->mbox_mem_pool);
6417 /* Unset all the queues set up in this routine when error out */
6418 lpfc_sli4_queue_unset(phba);
6420 lpfc_sli4_queue_destroy(phba);
6422 lpfc_stop_hba_timers(phba);
6424 mempool_free(mboxq, phba->mbox_mem_pool);
6429 * lpfc_mbox_timeout - Timeout call back function for mbox timer
6430 * @ptr: context object - pointer to hba structure.
6432 * This is the callback function for mailbox timer. The mailbox
6433 * timer is armed when a new mailbox command is issued and the timer
6434 * is deleted when the mailbox complete. The function is called by
6435 * the kernel timer code when a mailbox does not complete within
6436 * expected time. This function wakes up the worker thread to
6437 * process the mailbox timeout and returns. All the processing is
6438 * done by the worker thread function lpfc_mbox_timeout_handler.
6441 lpfc_mbox_timeout(unsigned long ptr)
6443 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
6444 unsigned long iflag;
6445 uint32_t tmo_posted;
6447 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
6448 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
6450 phba->pport->work_port_events |= WORKER_MBOX_TMO;
6451 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
6454 lpfc_worker_wake_up(phba);
6460 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
6461 * @phba: Pointer to HBA context object.
6463 * This function is called from worker thread when a mailbox command times out.
6464 * The caller is not required to hold any locks. This function will reset the
6465 * HBA and recover all the pending commands.
6468 lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
6470 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
6471 MAILBOX_t *mb = &pmbox->u.mb;
6472 struct lpfc_sli *psli = &phba->sli;
6473 struct lpfc_sli_ring *pring;
6475 /* Check the pmbox pointer first. There is a race condition
6476 * between the mbox timeout handler getting executed in the
6477 * worklist and the mailbox actually completing. When this
6478 * race condition occurs, the mbox_active will be NULL.
6480 spin_lock_irq(&phba->hbalock);
6481 if (pmbox == NULL) {
6482 lpfc_printf_log(phba, KERN_WARNING,
6484 "0353 Active Mailbox cleared - mailbox timeout "
6486 spin_unlock_irq(&phba->hbalock);
6490 /* Mbox cmd <mbxCommand> timeout */
6491 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6492 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
6494 phba->pport->port_state,
6496 phba->sli.mbox_active);
6497 spin_unlock_irq(&phba->hbalock);
6499 /* Setting state unknown so lpfc_sli_abort_iocb_ring
6500 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
6501 * it to fail all outstanding SCSI IO.
6503 spin_lock_irq(&phba->pport->work_port_lock);
6504 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
6505 spin_unlock_irq(&phba->pport->work_port_lock);
6506 spin_lock_irq(&phba->hbalock);
6507 phba->link_state = LPFC_LINK_UNKNOWN;
6508 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
6509 spin_unlock_irq(&phba->hbalock);
6511 pring = &psli->ring[psli->fcp_ring];
6512 lpfc_sli_abort_iocb_ring(phba, pring);
6514 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6515 "0345 Resetting board due to mailbox timeout\n");
6517 /* Reset the HBA device */
6518 lpfc_reset_hba(phba);
6522 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
6523 * @phba: Pointer to HBA context object.
6524 * @pmbox: Pointer to mailbox object.
6525 * @flag: Flag indicating how the mailbox need to be processed.
6527 * This function is called by discovery code and HBA management code
6528 * to submit a mailbox command to firmware with SLI-3 interface spec. This
6529 * function gets the hbalock to protect the data structures.
6530 * The mailbox command can be submitted in polling mode, in which case
6531 * this function will wait in a polling loop for the completion of the
6533 * If the mailbox is submitted in no_wait mode (not polling) the
6534 * function will submit the command and returns immediately without waiting
6535 * for the mailbox completion. The no_wait is supported only when HBA
6536 * is in SLI2/SLI3 mode - interrupts are enabled.
6537 * The SLI interface allows only one mailbox pending at a time. If the
6538 * mailbox is issued in polling mode and there is already a mailbox
6539 * pending, then the function will return an error. If the mailbox is issued
6540 * in NO_WAIT mode and there is a mailbox pending already, the function
6541 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
6542 * The sli layer owns the mailbox object until the completion of mailbox
6543 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
6544 * return codes the caller owns the mailbox command after the return of
6548 lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
6552 struct lpfc_sli *psli = &phba->sli;
6553 uint32_t status, evtctr;
6554 uint32_t ha_copy, hc_copy;
6556 unsigned long timeout;
6557 unsigned long drvr_flag = 0;
6558 uint32_t word0, ldata;
6559 void __iomem *to_slim;
6560 int processing_queue = 0;
6562 spin_lock_irqsave(&phba->hbalock, drvr_flag);
6564 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6565 /* processing mbox queue from intr_handler */
6566 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
6567 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6570 processing_queue = 1;
6571 pmbox = lpfc_mbox_get(phba);
6573 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6578 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
6579 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
6581 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6582 lpfc_printf_log(phba, KERN_ERR,
6583 LOG_MBOX | LOG_VPORT,
6584 "1806 Mbox x%x failed. No vport\n",
6585 pmbox->u.mb.mbxCommand);
6587 goto out_not_finished;
6591 /* If the PCI channel is in offline state, do not post mbox. */
6592 if (unlikely(pci_channel_offline(phba->pcidev))) {
6593 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6594 goto out_not_finished;
6597 /* If HBA has a deferred error attention, fail the iocb. */
6598 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
6599 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6600 goto out_not_finished;
6606 status = MBX_SUCCESS;
6608 if (phba->link_state == LPFC_HBA_ERROR) {
6609 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6611 /* Mbox command <mbxCommand> cannot issue */
6612 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6613 "(%d):0311 Mailbox command x%x cannot "
6614 "issue Data: x%x x%x\n",
6615 pmbox->vport ? pmbox->vport->vpi : 0,
6616 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
6617 goto out_not_finished;
6620 if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT) {
6621 if (lpfc_readl(phba->HCregaddr, &hc_copy) ||
6622 !(hc_copy & HC_MBINT_ENA)) {
6623 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6624 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6625 "(%d):2528 Mailbox command x%x cannot "
6626 "issue Data: x%x x%x\n",
6627 pmbox->vport ? pmbox->vport->vpi : 0,
6628 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
6629 goto out_not_finished;
6633 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
6634 /* Polling for a mbox command when another one is already active
6635 * is not allowed in SLI. Also, the driver must have established
6636 * SLI2 mode to queue and process multiple mbox commands.
6639 if (flag & MBX_POLL) {
6640 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6642 /* Mbox command <mbxCommand> cannot issue */
6643 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6644 "(%d):2529 Mailbox command x%x "
6645 "cannot issue Data: x%x x%x\n",
6646 pmbox->vport ? pmbox->vport->vpi : 0,
6647 pmbox->u.mb.mbxCommand,
6648 psli->sli_flag, flag);
6649 goto out_not_finished;
6652 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
6653 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6654 /* Mbox command <mbxCommand> cannot issue */
6655 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6656 "(%d):2530 Mailbox command x%x "
6657 "cannot issue Data: x%x x%x\n",
6658 pmbox->vport ? pmbox->vport->vpi : 0,
6659 pmbox->u.mb.mbxCommand,
6660 psli->sli_flag, flag);
6661 goto out_not_finished;
6664 /* Another mailbox command is still being processed, queue this
6665 * command to be processed later.
6667 lpfc_mbox_put(phba, pmbox);
6669 /* Mbox cmd issue - BUSY */
6670 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6671 "(%d):0308 Mbox cmd issue - BUSY Data: "
6672 "x%x x%x x%x x%x\n",
6673 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
6674 mb->mbxCommand, phba->pport->port_state,
6675 psli->sli_flag, flag);
6677 psli->slistat.mbox_busy++;
6678 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6681 lpfc_debugfs_disc_trc(pmbox->vport,
6682 LPFC_DISC_TRC_MBOX_VPORT,
6683 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
6684 (uint32_t)mb->mbxCommand,
6685 mb->un.varWords[0], mb->un.varWords[1]);
6688 lpfc_debugfs_disc_trc(phba->pport,
6690 "MBOX Bsy: cmd:x%x mb:x%x x%x",
6691 (uint32_t)mb->mbxCommand,
6692 mb->un.varWords[0], mb->un.varWords[1]);
6698 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
6700 /* If we are not polling, we MUST be in SLI2 mode */
6701 if (flag != MBX_POLL) {
6702 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
6703 (mb->mbxCommand != MBX_KILL_BOARD)) {
6704 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6705 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6706 /* Mbox command <mbxCommand> cannot issue */
6707 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6708 "(%d):2531 Mailbox command x%x "
6709 "cannot issue Data: x%x x%x\n",
6710 pmbox->vport ? pmbox->vport->vpi : 0,
6711 pmbox->u.mb.mbxCommand,
6712 psli->sli_flag, flag);
6713 goto out_not_finished;
6715 /* timeout active mbox command */
6716 mod_timer(&psli->mbox_tmo, (jiffies +
6717 (HZ * lpfc_mbox_tmo_val(phba, pmbox))));
6720 /* Mailbox cmd <cmd> issue */
6721 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6722 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
6724 pmbox->vport ? pmbox->vport->vpi : 0,
6725 mb->mbxCommand, phba->pport->port_state,
6726 psli->sli_flag, flag);
6728 if (mb->mbxCommand != MBX_HEARTBEAT) {
6730 lpfc_debugfs_disc_trc(pmbox->vport,
6731 LPFC_DISC_TRC_MBOX_VPORT,
6732 "MBOX Send vport: cmd:x%x mb:x%x x%x",
6733 (uint32_t)mb->mbxCommand,
6734 mb->un.varWords[0], mb->un.varWords[1]);
6737 lpfc_debugfs_disc_trc(phba->pport,
6739 "MBOX Send: cmd:x%x mb:x%x x%x",
6740 (uint32_t)mb->mbxCommand,
6741 mb->un.varWords[0], mb->un.varWords[1]);
6745 psli->slistat.mbox_cmd++;
6746 evtctr = psli->slistat.mbox_event;
6748 /* next set own bit for the adapter and copy over command word */
6749 mb->mbxOwner = OWN_CHIP;
6751 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
6752 /* Populate mbox extension offset word. */
6753 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) {
6754 *(((uint32_t *)mb) + pmbox->mbox_offset_word)
6755 = (uint8_t *)phba->mbox_ext
6756 - (uint8_t *)phba->mbox;
6759 /* Copy the mailbox extension data */
6760 if (pmbox->in_ext_byte_len && pmbox->context2) {
6761 lpfc_sli_pcimem_bcopy(pmbox->context2,
6762 (uint8_t *)phba->mbox_ext,
6763 pmbox->in_ext_byte_len);
6765 /* Copy command data to host SLIM area */
6766 lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE);
6768 /* Populate mbox extension offset word. */
6769 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len)
6770 *(((uint32_t *)mb) + pmbox->mbox_offset_word)
6771 = MAILBOX_HBA_EXT_OFFSET;
6773 /* Copy the mailbox extension data */
6774 if (pmbox->in_ext_byte_len && pmbox->context2) {
6775 lpfc_memcpy_to_slim(phba->MBslimaddr +
6776 MAILBOX_HBA_EXT_OFFSET,
6777 pmbox->context2, pmbox->in_ext_byte_len);
6780 if (mb->mbxCommand == MBX_CONFIG_PORT) {
6781 /* copy command data into host mbox for cmpl */
6782 lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE);
6785 /* First copy mbox command data to HBA SLIM, skip past first
6787 to_slim = phba->MBslimaddr + sizeof (uint32_t);
6788 lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0],
6789 MAILBOX_CMD_SIZE - sizeof (uint32_t));
6791 /* Next copy over first word, with mbxOwner set */
6792 ldata = *((uint32_t *)mb);
6793 to_slim = phba->MBslimaddr;
6794 writel(ldata, to_slim);
6795 readl(to_slim); /* flush */
6797 if (mb->mbxCommand == MBX_CONFIG_PORT) {
6798 /* switch over to host mailbox */
6799 psli->sli_flag |= LPFC_SLI_ACTIVE;
6807 /* Set up reference to mailbox command */
6808 psli->mbox_active = pmbox;
6809 /* Interrupt board to do it */
6810 writel(CA_MBATT, phba->CAregaddr);
6811 readl(phba->CAregaddr); /* flush */
6812 /* Don't wait for it to finish, just return */
6816 /* Set up null reference to mailbox command */
6817 psli->mbox_active = NULL;
6818 /* Interrupt board to do it */
6819 writel(CA_MBATT, phba->CAregaddr);
6820 readl(phba->CAregaddr); /* flush */
6822 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
6823 /* First read mbox status word */
6824 word0 = *((uint32_t *)phba->mbox);
6825 word0 = le32_to_cpu(word0);
6827 /* First read mbox status word */
6828 if (lpfc_readl(phba->MBslimaddr, &word0)) {
6829 spin_unlock_irqrestore(&phba->hbalock,
6831 goto out_not_finished;
6835 /* Read the HBA Host Attention Register */
6836 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
6837 spin_unlock_irqrestore(&phba->hbalock,
6839 goto out_not_finished;
6841 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
6844 /* Wait for command to complete */
6845 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
6846 (!(ha_copy & HA_MBATT) &&
6847 (phba->link_state > LPFC_WARM_START))) {
6848 if (time_after(jiffies, timeout)) {
6849 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6850 spin_unlock_irqrestore(&phba->hbalock,
6852 goto out_not_finished;
6855 /* Check if we took a mbox interrupt while we were
6857 if (((word0 & OWN_CHIP) != OWN_CHIP)
6858 && (evtctr != psli->slistat.mbox_event))
6862 spin_unlock_irqrestore(&phba->hbalock,
6865 spin_lock_irqsave(&phba->hbalock, drvr_flag);
6868 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
6869 /* First copy command data */
6870 word0 = *((uint32_t *)phba->mbox);
6871 word0 = le32_to_cpu(word0);
6872 if (mb->mbxCommand == MBX_CONFIG_PORT) {
6875 /* Check real SLIM for any errors */
6876 slimword0 = readl(phba->MBslimaddr);
6877 slimmb = (MAILBOX_t *) & slimword0;
6878 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
6879 && slimmb->mbxStatus) {
6886 /* First copy command data */
6887 word0 = readl(phba->MBslimaddr);
6889 /* Read the HBA Host Attention Register */
6890 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
6891 spin_unlock_irqrestore(&phba->hbalock,
6893 goto out_not_finished;
6897 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
6898 /* copy results back to user */
6899 lpfc_sli_pcimem_bcopy(phba->mbox, mb, MAILBOX_CMD_SIZE);
6900 /* Copy the mailbox extension data */
6901 if (pmbox->out_ext_byte_len && pmbox->context2) {
6902 lpfc_sli_pcimem_bcopy(phba->mbox_ext,
6904 pmbox->out_ext_byte_len);
6907 /* First copy command data */
6908 lpfc_memcpy_from_slim(mb, phba->MBslimaddr,
6910 /* Copy the mailbox extension data */
6911 if (pmbox->out_ext_byte_len && pmbox->context2) {
6912 lpfc_memcpy_from_slim(pmbox->context2,
6914 MAILBOX_HBA_EXT_OFFSET,
6915 pmbox->out_ext_byte_len);
6919 writel(HA_MBATT, phba->HAregaddr);
6920 readl(phba->HAregaddr); /* flush */
6922 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6923 status = mb->mbxStatus;
6926 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6930 if (processing_queue) {
6931 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
6932 lpfc_mbox_cmpl_put(phba, pmbox);
6934 return MBX_NOT_FINISHED;
6938 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
6939 * @phba: Pointer to HBA context object.
6941 * The function blocks the posting of SLI4 asynchronous mailbox commands from
6942 * the driver internal pending mailbox queue. It will then try to wait out the
6943 * possible outstanding mailbox command before return.
6946 * 0 - the outstanding mailbox command completed; otherwise, the wait for
6947 * the outstanding mailbox command timed out.
6950 lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
6952 struct lpfc_sli *psli = &phba->sli;
6954 unsigned long timeout = 0;
6956 /* Mark the asynchronous mailbox command posting as blocked */
6957 spin_lock_irq(&phba->hbalock);
6958 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
6959 /* Determine how long we might wait for the active mailbox
6960 * command to be gracefully completed by firmware.
6962 if (phba->sli.mbox_active)
6963 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
6964 phba->sli.mbox_active) *
6966 spin_unlock_irq(&phba->hbalock);
6968 /* Wait for the outstnading mailbox command to complete */
6969 while (phba->sli.mbox_active) {
6970 /* Check active mailbox complete status every 2ms */
6972 if (time_after(jiffies, timeout)) {
6973 /* Timeout, marked the outstanding cmd not complete */
6979 /* Can not cleanly block async mailbox command, fails it */
6981 spin_lock_irq(&phba->hbalock);
6982 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
6983 spin_unlock_irq(&phba->hbalock);
6989 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
6990 * @phba: Pointer to HBA context object.
6992 * The function unblocks and resume posting of SLI4 asynchronous mailbox
6993 * commands from the driver internal pending mailbox queue. It makes sure
6994 * that there is no outstanding mailbox command before resuming posting
6995 * asynchronous mailbox commands. If, for any reason, there is outstanding
6996 * mailbox command, it will try to wait it out before resuming asynchronous
6997 * mailbox command posting.
7000 lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
7002 struct lpfc_sli *psli = &phba->sli;
7004 spin_lock_irq(&phba->hbalock);
7005 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7006 /* Asynchronous mailbox posting is not blocked, do nothing */
7007 spin_unlock_irq(&phba->hbalock);
7011 /* Outstanding synchronous mailbox command is guaranteed to be done,
7012 * successful or timeout, after timing-out the outstanding mailbox
7013 * command shall always be removed, so just unblock posting async
7014 * mailbox command and resume
7016 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7017 spin_unlock_irq(&phba->hbalock);
7019 /* wake up worker thread to post asynchronlous mailbox command */
7020 lpfc_worker_wake_up(phba);
7024 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
7025 * @phba: Pointer to HBA context object.
7026 * @mboxq: Pointer to mailbox object.
7028 * The function posts a mailbox to the port. The mailbox is expected
7029 * to be comletely filled in and ready for the port to operate on it.
7030 * This routine executes a synchronous completion operation on the
7031 * mailbox by polling for its completion.
7033 * The caller must not be holding any locks when calling this routine.
7036 * MBX_SUCCESS - mailbox posted successfully
7037 * Any of the MBX error values.
7040 lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7042 int rc = MBX_SUCCESS;
7043 unsigned long iflag;
7045 uint32_t mcqe_status;
7047 unsigned long timeout;
7048 struct lpfc_sli *psli = &phba->sli;
7049 struct lpfc_mqe *mb = &mboxq->u.mqe;
7050 struct lpfc_bmbx_create *mbox_rgn;
7051 struct dma_address *dma_address;
7052 struct lpfc_register bmbx_reg;
7055 * Only one mailbox can be active to the bootstrap mailbox region
7056 * at a time and there is no queueing provided.
7058 spin_lock_irqsave(&phba->hbalock, iflag);
7059 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7060 spin_unlock_irqrestore(&phba->hbalock, iflag);
7061 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7062 "(%d):2532 Mailbox command x%x (x%x/x%x) "
7063 "cannot issue Data: x%x x%x\n",
7064 mboxq->vport ? mboxq->vport->vpi : 0,
7065 mboxq->u.mb.mbxCommand,
7066 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7067 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7068 psli->sli_flag, MBX_POLL);
7069 return MBXERR_ERROR;
7071 /* The server grabs the token and owns it until release */
7072 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7073 phba->sli.mbox_active = mboxq;
7074 spin_unlock_irqrestore(&phba->hbalock, iflag);
7077 * Initialize the bootstrap memory region to avoid stale data areas
7078 * in the mailbox post. Then copy the caller's mailbox contents to
7079 * the bmbx mailbox region.
7081 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
7082 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
7083 lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
7084 sizeof(struct lpfc_mqe));
7086 /* Post the high mailbox dma address to the port and wait for ready. */
7087 dma_address = &phba->sli4_hba.bmbx.dma_address;
7088 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
7090 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mboxq)
7093 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
7094 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
7098 if (time_after(jiffies, timeout)) {
7102 } while (!db_ready);
7104 /* Post the low mailbox dma address to the port. */
7105 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
7106 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mboxq)
7109 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
7110 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
7114 if (time_after(jiffies, timeout)) {
7118 } while (!db_ready);
7121 * Read the CQ to ensure the mailbox has completed.
7122 * If so, update the mailbox status so that the upper layers
7123 * can complete the request normally.
7125 lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
7126 sizeof(struct lpfc_mqe));
7127 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
7128 lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
7129 sizeof(struct lpfc_mcqe));
7130 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
7132 * When the CQE status indicates a failure and the mailbox status
7133 * indicates success then copy the CQE status into the mailbox status
7134 * (and prefix it with x4000).
7136 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
7137 if (bf_get(lpfc_mqe_status, mb) == MBX_SUCCESS)
7138 bf_set(lpfc_mqe_status, mb,
7139 (LPFC_MBX_ERROR_RANGE | mcqe_status));
7142 lpfc_sli4_swap_str(phba, mboxq);
7144 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7145 "(%d):0356 Mailbox cmd x%x (x%x/x%x) Status x%x "
7146 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
7147 " x%x x%x CQ: x%x x%x x%x x%x\n",
7148 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
7149 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7150 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7151 bf_get(lpfc_mqe_status, mb),
7152 mb->un.mb_words[0], mb->un.mb_words[1],
7153 mb->un.mb_words[2], mb->un.mb_words[3],
7154 mb->un.mb_words[4], mb->un.mb_words[5],
7155 mb->un.mb_words[6], mb->un.mb_words[7],
7156 mb->un.mb_words[8], mb->un.mb_words[9],
7157 mb->un.mb_words[10], mb->un.mb_words[11],
7158 mb->un.mb_words[12], mboxq->mcqe.word0,
7159 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
7160 mboxq->mcqe.trailer);
7162 /* We are holding the token, no needed for lock when release */
7163 spin_lock_irqsave(&phba->hbalock, iflag);
7164 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7165 phba->sli.mbox_active = NULL;
7166 spin_unlock_irqrestore(&phba->hbalock, iflag);
7171 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
7172 * @phba: Pointer to HBA context object.
7173 * @pmbox: Pointer to mailbox object.
7174 * @flag: Flag indicating how the mailbox need to be processed.
7176 * This function is called by discovery code and HBA management code to submit
7177 * a mailbox command to firmware with SLI-4 interface spec.
7179 * Return codes the caller owns the mailbox command after the return of the
7183 lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
7186 struct lpfc_sli *psli = &phba->sli;
7187 unsigned long iflags;
7190 /* dump from issue mailbox command if setup */
7191 lpfc_idiag_mbxacc_dump_issue_mbox(phba, &mboxq->u.mb);
7193 rc = lpfc_mbox_dev_check(phba);
7195 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7196 "(%d):2544 Mailbox command x%x (x%x/x%x) "
7197 "cannot issue Data: x%x x%x\n",
7198 mboxq->vport ? mboxq->vport->vpi : 0,
7199 mboxq->u.mb.mbxCommand,
7200 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7201 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7202 psli->sli_flag, flag);
7203 goto out_not_finished;
7206 /* Detect polling mode and jump to a handler */
7207 if (!phba->sli4_hba.intr_enable) {
7208 if (flag == MBX_POLL)
7209 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
7212 if (rc != MBX_SUCCESS)
7213 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7214 "(%d):2541 Mailbox command x%x "
7215 "(x%x/x%x) failure: "
7216 "mqe_sta: x%x mcqe_sta: x%x/x%x "
7218 mboxq->vport ? mboxq->vport->vpi : 0,
7219 mboxq->u.mb.mbxCommand,
7220 lpfc_sli_config_mbox_subsys_get(phba,
7222 lpfc_sli_config_mbox_opcode_get(phba,
7224 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
7225 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
7226 bf_get(lpfc_mcqe_ext_status,
7228 psli->sli_flag, flag);
7230 } else if (flag == MBX_POLL) {
7231 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7232 "(%d):2542 Try to issue mailbox command "
7233 "x%x (x%x/x%x) synchronously ahead of async"
7234 "mailbox command queue: x%x x%x\n",
7235 mboxq->vport ? mboxq->vport->vpi : 0,
7236 mboxq->u.mb.mbxCommand,
7237 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7238 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7239 psli->sli_flag, flag);
7240 /* Try to block the asynchronous mailbox posting */
7241 rc = lpfc_sli4_async_mbox_block(phba);
7243 /* Successfully blocked, now issue sync mbox cmd */
7244 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
7245 if (rc != MBX_SUCCESS)
7246 lpfc_printf_log(phba, KERN_WARNING,
7248 "(%d):2597 Sync Mailbox command "
7249 "x%x (x%x/x%x) failure: "
7250 "mqe_sta: x%x mcqe_sta: x%x/x%x "
7252 mboxq->vport ? mboxq->vport->vpi : 0,
7253 mboxq->u.mb.mbxCommand,
7254 lpfc_sli_config_mbox_subsys_get(phba,
7256 lpfc_sli_config_mbox_opcode_get(phba,
7258 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
7259 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
7260 bf_get(lpfc_mcqe_ext_status,
7262 psli->sli_flag, flag);
7263 /* Unblock the async mailbox posting afterward */
7264 lpfc_sli4_async_mbox_unblock(phba);
7269 /* Now, interrupt mode asynchrous mailbox command */
7270 rc = lpfc_mbox_cmd_check(phba, mboxq);
7272 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7273 "(%d):2543 Mailbox command x%x (x%x/x%x) "
7274 "cannot issue Data: x%x x%x\n",
7275 mboxq->vport ? mboxq->vport->vpi : 0,
7276 mboxq->u.mb.mbxCommand,
7277 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7278 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7279 psli->sli_flag, flag);
7280 goto out_not_finished;
7283 /* Put the mailbox command to the driver internal FIFO */
7284 psli->slistat.mbox_busy++;
7285 spin_lock_irqsave(&phba->hbalock, iflags);
7286 lpfc_mbox_put(phba, mboxq);
7287 spin_unlock_irqrestore(&phba->hbalock, iflags);
7288 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7289 "(%d):0354 Mbox cmd issue - Enqueue Data: "
7290 "x%x (x%x/x%x) x%x x%x x%x\n",
7291 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
7292 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
7293 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7294 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7295 phba->pport->port_state,
7296 psli->sli_flag, MBX_NOWAIT);
7297 /* Wake up worker thread to transport mailbox command from head */
7298 lpfc_worker_wake_up(phba);
7303 return MBX_NOT_FINISHED;
7307 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
7308 * @phba: Pointer to HBA context object.
7310 * This function is called by worker thread to send a mailbox command to
7311 * SLI4 HBA firmware.
7315 lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
7317 struct lpfc_sli *psli = &phba->sli;
7318 LPFC_MBOXQ_t *mboxq;
7319 int rc = MBX_SUCCESS;
7320 unsigned long iflags;
7321 struct lpfc_mqe *mqe;
7324 /* Check interrupt mode before post async mailbox command */
7325 if (unlikely(!phba->sli4_hba.intr_enable))
7326 return MBX_NOT_FINISHED;
7328 /* Check for mailbox command service token */
7329 spin_lock_irqsave(&phba->hbalock, iflags);
7330 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7331 spin_unlock_irqrestore(&phba->hbalock, iflags);
7332 return MBX_NOT_FINISHED;
7334 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7335 spin_unlock_irqrestore(&phba->hbalock, iflags);
7336 return MBX_NOT_FINISHED;
7338 if (unlikely(phba->sli.mbox_active)) {
7339 spin_unlock_irqrestore(&phba->hbalock, iflags);
7340 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7341 "0384 There is pending active mailbox cmd\n");
7342 return MBX_NOT_FINISHED;
7344 /* Take the mailbox command service token */
7345 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7347 /* Get the next mailbox command from head of queue */
7348 mboxq = lpfc_mbox_get(phba);
7350 /* If no more mailbox command waiting for post, we're done */
7352 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7353 spin_unlock_irqrestore(&phba->hbalock, iflags);
7356 phba->sli.mbox_active = mboxq;
7357 spin_unlock_irqrestore(&phba->hbalock, iflags);
7359 /* Check device readiness for posting mailbox command */
7360 rc = lpfc_mbox_dev_check(phba);
7362 /* Driver clean routine will clean up pending mailbox */
7363 goto out_not_finished;
7365 /* Prepare the mbox command to be posted */
7366 mqe = &mboxq->u.mqe;
7367 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
7369 /* Start timer for the mbox_tmo and log some mailbox post messages */
7370 mod_timer(&psli->mbox_tmo, (jiffies +
7371 (HZ * lpfc_mbox_tmo_val(phba, mboxq))));
7373 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7374 "(%d):0355 Mailbox cmd x%x (x%x/x%x) issue Data: "
7376 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
7377 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7378 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7379 phba->pport->port_state, psli->sli_flag);
7381 if (mbx_cmnd != MBX_HEARTBEAT) {
7383 lpfc_debugfs_disc_trc(mboxq->vport,
7384 LPFC_DISC_TRC_MBOX_VPORT,
7385 "MBOX Send vport: cmd:x%x mb:x%x x%x",
7386 mbx_cmnd, mqe->un.mb_words[0],
7387 mqe->un.mb_words[1]);
7389 lpfc_debugfs_disc_trc(phba->pport,
7391 "MBOX Send: cmd:x%x mb:x%x x%x",
7392 mbx_cmnd, mqe->un.mb_words[0],
7393 mqe->un.mb_words[1]);
7396 psli->slistat.mbox_cmd++;
7398 /* Post the mailbox command to the port */
7399 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
7400 if (rc != MBX_SUCCESS) {
7401 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7402 "(%d):2533 Mailbox command x%x (x%x/x%x) "
7403 "cannot issue Data: x%x x%x\n",
7404 mboxq->vport ? mboxq->vport->vpi : 0,
7405 mboxq->u.mb.mbxCommand,
7406 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7407 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7408 psli->sli_flag, MBX_NOWAIT);
7409 goto out_not_finished;
7415 spin_lock_irqsave(&phba->hbalock, iflags);
7416 if (phba->sli.mbox_active) {
7417 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
7418 __lpfc_mbox_cmpl_put(phba, mboxq);
7419 /* Release the token */
7420 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7421 phba->sli.mbox_active = NULL;
7423 spin_unlock_irqrestore(&phba->hbalock, iflags);
7425 return MBX_NOT_FINISHED;
7429 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
7430 * @phba: Pointer to HBA context object.
7431 * @pmbox: Pointer to mailbox object.
7432 * @flag: Flag indicating how the mailbox need to be processed.
7434 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
7435 * the API jump table function pointer from the lpfc_hba struct.
7437 * Return codes the caller owns the mailbox command after the return of the
7441 lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
7443 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
7447 * lpfc_mbox_api_table_setup - Set up mbox api function jump table
7448 * @phba: The hba struct for which this call is being executed.
7449 * @dev_grp: The HBA PCI-Device group number.
7451 * This routine sets up the mbox interface API function jump table in @phba
7453 * Returns: 0 - success, -ENODEV - failure.
7456 lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
7460 case LPFC_PCI_DEV_LP:
7461 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
7462 phba->lpfc_sli_handle_slow_ring_event =
7463 lpfc_sli_handle_slow_ring_event_s3;
7464 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
7465 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
7466 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
7468 case LPFC_PCI_DEV_OC:
7469 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
7470 phba->lpfc_sli_handle_slow_ring_event =
7471 lpfc_sli_handle_slow_ring_event_s4;
7472 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
7473 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
7474 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
7477 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7478 "1420 Invalid HBA PCI-device group: 0x%x\n",
7487 * __lpfc_sli_ringtx_put - Add an iocb to the txq
7488 * @phba: Pointer to HBA context object.
7489 * @pring: Pointer to driver SLI ring object.
7490 * @piocb: Pointer to address of newly added command iocb.
7492 * This function is called with hbalock held to add a command
7493 * iocb to the txq when SLI layer cannot submit the command iocb
7497 __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7498 struct lpfc_iocbq *piocb)
7500 /* Insert the caller's iocb in the txq tail for later processing. */
7501 list_add_tail(&piocb->list, &pring->txq);
7506 * lpfc_sli_next_iocb - Get the next iocb in the txq
7507 * @phba: Pointer to HBA context object.
7508 * @pring: Pointer to driver SLI ring object.
7509 * @piocb: Pointer to address of newly added command iocb.
7511 * This function is called with hbalock held before a new
7512 * iocb is submitted to the firmware. This function checks
7513 * txq to flush the iocbs in txq to Firmware before
7514 * submitting new iocbs to the Firmware.
7515 * If there are iocbs in the txq which need to be submitted
7516 * to firmware, lpfc_sli_next_iocb returns the first element
7517 * of the txq after dequeuing it from txq.
7518 * If there is no iocb in the txq then the function will return
7519 * *piocb and *piocb is set to NULL. Caller needs to check
7520 * *piocb to find if there are more commands in the txq.
7522 static struct lpfc_iocbq *
7523 lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7524 struct lpfc_iocbq **piocb)
7526 struct lpfc_iocbq * nextiocb;
7528 nextiocb = lpfc_sli_ringtx_get(phba, pring);
7538 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
7539 * @phba: Pointer to HBA context object.
7540 * @ring_number: SLI ring number to issue iocb on.
7541 * @piocb: Pointer to command iocb.
7542 * @flag: Flag indicating if this command can be put into txq.
7544 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
7545 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
7546 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
7547 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
7548 * this function allows only iocbs for posting buffers. This function finds
7549 * next available slot in the command ring and posts the command to the
7550 * available slot and writes the port attention register to request HBA start
7551 * processing new iocb. If there is no slot available in the ring and
7552 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
7553 * the function returns IOCB_BUSY.
7555 * This function is called with hbalock held. The function will return success
7556 * after it successfully submit the iocb to firmware or after adding to the
7560 __lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
7561 struct lpfc_iocbq *piocb, uint32_t flag)
7563 struct lpfc_iocbq *nextiocb;
7565 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
7567 if (piocb->iocb_cmpl && (!piocb->vport) &&
7568 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
7569 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
7570 lpfc_printf_log(phba, KERN_ERR,
7571 LOG_SLI | LOG_VPORT,
7572 "1807 IOCB x%x failed. No vport\n",
7573 piocb->iocb.ulpCommand);
7579 /* If the PCI channel is in offline state, do not post iocbs. */
7580 if (unlikely(pci_channel_offline(phba->pcidev)))
7583 /* If HBA has a deferred error attention, fail the iocb. */
7584 if (unlikely(phba->hba_flag & DEFER_ERATT))
7588 * We should never get an IOCB if we are in a < LINK_DOWN state
7590 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
7594 * Check to see if we are blocking IOCB processing because of a
7595 * outstanding event.
7597 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
7600 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
7602 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
7603 * can be issued if the link is not up.
7605 switch (piocb->iocb.ulpCommand) {
7606 case CMD_GEN_REQUEST64_CR:
7607 case CMD_GEN_REQUEST64_CX:
7608 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
7609 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
7610 FC_RCTL_DD_UNSOL_CMD) ||
7611 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
7612 MENLO_TRANSPORT_TYPE))
7616 case CMD_QUE_RING_BUF_CN:
7617 case CMD_QUE_RING_BUF64_CN:
7619 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
7620 * completion, iocb_cmpl MUST be 0.
7622 if (piocb->iocb_cmpl)
7623 piocb->iocb_cmpl = NULL;
7625 case CMD_CREATE_XRI_CR:
7626 case CMD_CLOSE_XRI_CN:
7627 case CMD_CLOSE_XRI_CX:
7634 * For FCP commands, we must be in a state where we can process link
7637 } else if (unlikely(pring->ringno == phba->sli.fcp_ring &&
7638 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
7642 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
7643 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
7644 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
7647 lpfc_sli_update_ring(phba, pring);
7649 lpfc_sli_update_full_ring(phba, pring);
7652 return IOCB_SUCCESS;
7657 pring->stats.iocb_cmd_delay++;
7661 if (!(flag & SLI_IOCB_RET_IOCB)) {
7662 __lpfc_sli_ringtx_put(phba, pring, piocb);
7663 return IOCB_SUCCESS;
7670 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
7671 * @phba: Pointer to HBA context object.
7672 * @piocb: Pointer to command iocb.
7673 * @sglq: Pointer to the scatter gather queue object.
7675 * This routine converts the bpl or bde that is in the IOCB
7676 * to a sgl list for the sli4 hardware. The physical address
7677 * of the bpl/bde is converted back to a virtual address.
7678 * If the IOCB contains a BPL then the list of BDE's is
7679 * converted to sli4_sge's. If the IOCB contains a single
7680 * BDE then it is converted to a single sli_sge.
7681 * The IOCB is still in cpu endianess so the contents of
7682 * the bpl can be used without byte swapping.
7684 * Returns valid XRI = Success, NO_XRI = Failure.
7687 lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
7688 struct lpfc_sglq *sglq)
7690 uint16_t xritag = NO_XRI;
7691 struct ulp_bde64 *bpl = NULL;
7692 struct ulp_bde64 bde;
7693 struct sli4_sge *sgl = NULL;
7694 struct lpfc_dmabuf *dmabuf;
7698 uint32_t offset = 0; /* accumulated offset in the sg request list */
7699 int inbound = 0; /* number of sg reply entries inbound from firmware */
7701 if (!piocbq || !sglq)
7704 sgl = (struct sli4_sge *)sglq->sgl;
7705 icmd = &piocbq->iocb;
7706 if (icmd->ulpCommand == CMD_XMIT_BLS_RSP64_CX)
7707 return sglq->sli4_xritag;
7708 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
7709 numBdes = icmd->un.genreq64.bdl.bdeSize /
7710 sizeof(struct ulp_bde64);
7711 /* The addrHigh and addrLow fields within the IOCB
7712 * have not been byteswapped yet so there is no
7713 * need to swap them back.
7715 if (piocbq->context3)
7716 dmabuf = (struct lpfc_dmabuf *)piocbq->context3;
7720 bpl = (struct ulp_bde64 *)dmabuf->virt;
7724 for (i = 0; i < numBdes; i++) {
7725 /* Should already be byte swapped. */
7726 sgl->addr_hi = bpl->addrHigh;
7727 sgl->addr_lo = bpl->addrLow;
7729 sgl->word2 = le32_to_cpu(sgl->word2);
7730 if ((i+1) == numBdes)
7731 bf_set(lpfc_sli4_sge_last, sgl, 1);
7733 bf_set(lpfc_sli4_sge_last, sgl, 0);
7734 /* swap the size field back to the cpu so we
7735 * can assign it to the sgl.
7737 bde.tus.w = le32_to_cpu(bpl->tus.w);
7738 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
7739 /* The offsets in the sgl need to be accumulated
7740 * separately for the request and reply lists.
7741 * The request is always first, the reply follows.
7743 if (piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) {
7744 /* add up the reply sg entries */
7745 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
7747 /* first inbound? reset the offset */
7750 bf_set(lpfc_sli4_sge_offset, sgl, offset);
7751 bf_set(lpfc_sli4_sge_type, sgl,
7752 LPFC_SGE_TYPE_DATA);
7753 offset += bde.tus.f.bdeSize;
7755 sgl->word2 = cpu_to_le32(sgl->word2);
7759 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
7760 /* The addrHigh and addrLow fields of the BDE have not
7761 * been byteswapped yet so they need to be swapped
7762 * before putting them in the sgl.
7765 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
7767 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
7768 sgl->word2 = le32_to_cpu(sgl->word2);
7769 bf_set(lpfc_sli4_sge_last, sgl, 1);
7770 sgl->word2 = cpu_to_le32(sgl->word2);
7772 cpu_to_le32(icmd->un.genreq64.bdl.bdeSize);
7774 return sglq->sli4_xritag;
7778 * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution
7779 * @phba: Pointer to HBA context object.
7781 * This routine performs a roundrobin SCSI command to SLI4 FCP WQ index
7782 * distribution. This is called by __lpfc_sli_issue_iocb_s4() with the hbalock
7785 * Return: index into SLI4 fast-path FCP queue index.
7788 lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba)
7791 if (phba->fcp_qidx >= phba->cfg_fcp_wq_count)
7794 return phba->fcp_qidx;
7798 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
7799 * @phba: Pointer to HBA context object.
7800 * @piocb: Pointer to command iocb.
7801 * @wqe: Pointer to the work queue entry.
7803 * This routine converts the iocb command to its Work Queue Entry
7804 * equivalent. The wqe pointer should not have any fields set when
7805 * this routine is called because it will memcpy over them.
7806 * This routine does not set the CQ_ID or the WQEC bits in the
7809 * Returns: 0 = Success, IOCB_ERROR = Failure.
7812 lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
7813 union lpfc_wqe *wqe)
7815 uint32_t xmit_len = 0, total_len = 0;
7819 uint8_t command_type = ELS_COMMAND_NON_FIP;
7822 uint16_t abrt_iotag;
7823 struct lpfc_iocbq *abrtiocbq;
7824 struct ulp_bde64 *bpl = NULL;
7825 uint32_t els_id = LPFC_ELS_ID_DEFAULT;
7827 struct ulp_bde64 bde;
7828 struct lpfc_nodelist *ndlp;
7832 fip = phba->hba_flag & HBA_FIP_SUPPORT;
7833 /* The fcp commands will set command type */
7834 if (iocbq->iocb_flag & LPFC_IO_FCP)
7835 command_type = FCP_COMMAND;
7836 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
7837 command_type = ELS_COMMAND_FIP;
7839 command_type = ELS_COMMAND_NON_FIP;
7841 /* Some of the fields are in the right position already */
7842 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
7843 abort_tag = (uint32_t) iocbq->iotag;
7844 xritag = iocbq->sli4_xritag;
7845 wqe->generic.wqe_com.word7 = 0; /* The ct field has moved so reset */
7846 /* words0-2 bpl convert bde */
7847 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
7848 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
7849 sizeof(struct ulp_bde64);
7850 bpl = (struct ulp_bde64 *)
7851 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
7855 /* Should already be byte swapped. */
7856 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
7857 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
7858 /* swap the size field back to the cpu so we
7859 * can assign it to the sgl.
7861 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
7862 xmit_len = wqe->generic.bde.tus.f.bdeSize;
7864 for (i = 0; i < numBdes; i++) {
7865 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
7866 total_len += bde.tus.f.bdeSize;
7869 xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
7871 iocbq->iocb.ulpIoTag = iocbq->iotag;
7872 cmnd = iocbq->iocb.ulpCommand;
7874 switch (iocbq->iocb.ulpCommand) {
7875 case CMD_ELS_REQUEST64_CR:
7876 if (iocbq->iocb_flag & LPFC_IO_LIBDFC)
7877 ndlp = iocbq->context_un.ndlp;
7879 ndlp = (struct lpfc_nodelist *)iocbq->context1;
7880 if (!iocbq->iocb.ulpLe) {
7881 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7882 "2007 Only Limited Edition cmd Format"
7883 " supported 0x%x\n",
7884 iocbq->iocb.ulpCommand);
7888 wqe->els_req.payload_len = xmit_len;
7889 /* Els_reguest64 has a TMO */
7890 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
7891 iocbq->iocb.ulpTimeout);
7892 /* Need a VF for word 4 set the vf bit*/
7893 bf_set(els_req64_vf, &wqe->els_req, 0);
7894 /* And a VFID for word 12 */
7895 bf_set(els_req64_vfid, &wqe->els_req, 0);
7896 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
7897 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
7898 iocbq->iocb.ulpContext);
7899 bf_set(wqe_ct, &wqe->els_req.wqe_com, ct);
7900 bf_set(wqe_pu, &wqe->els_req.wqe_com, 0);
7901 /* CCP CCPE PV PRI in word10 were set in the memcpy */
7902 if (command_type == ELS_COMMAND_FIP)
7903 els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
7904 >> LPFC_FIP_ELS_ID_SHIFT);
7905 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
7906 iocbq->context2)->virt);
7907 if_type = bf_get(lpfc_sli_intf_if_type,
7908 &phba->sli4_hba.sli_intf);
7909 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
7910 if (pcmd && (*pcmd == ELS_CMD_FLOGI ||
7911 *pcmd == ELS_CMD_SCR ||
7912 *pcmd == ELS_CMD_FDISC ||
7913 *pcmd == ELS_CMD_LOGO ||
7914 *pcmd == ELS_CMD_PLOGI)) {
7915 bf_set(els_req64_sp, &wqe->els_req, 1);
7916 bf_set(els_req64_sid, &wqe->els_req,
7917 iocbq->vport->fc_myDID);
7918 if ((*pcmd == ELS_CMD_FLOGI) &&
7919 !(phba->fc_topology ==
7920 LPFC_TOPOLOGY_LOOP))
7921 bf_set(els_req64_sid, &wqe->els_req, 0);
7922 bf_set(wqe_ct, &wqe->els_req.wqe_com, 1);
7923 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
7924 phba->vpi_ids[iocbq->vport->vpi]);
7925 } else if (pcmd && iocbq->context1) {
7926 bf_set(wqe_ct, &wqe->els_req.wqe_com, 0);
7927 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
7928 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
7931 bf_set(wqe_temp_rpi, &wqe->els_req.wqe_com,
7932 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
7933 bf_set(wqe_els_id, &wqe->els_req.wqe_com, els_id);
7934 bf_set(wqe_dbde, &wqe->els_req.wqe_com, 1);
7935 bf_set(wqe_iod, &wqe->els_req.wqe_com, LPFC_WQE_IOD_READ);
7936 bf_set(wqe_qosd, &wqe->els_req.wqe_com, 1);
7937 bf_set(wqe_lenloc, &wqe->els_req.wqe_com, LPFC_WQE_LENLOC_NONE);
7938 bf_set(wqe_ebde_cnt, &wqe->els_req.wqe_com, 0);
7940 case CMD_XMIT_SEQUENCE64_CX:
7941 bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com,
7942 iocbq->iocb.un.ulpWord[3]);
7943 bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com,
7944 iocbq->iocb.unsli3.rcvsli3.ox_id);
7945 /* The entire sequence is transmitted for this IOCB */
7946 xmit_len = total_len;
7947 cmnd = CMD_XMIT_SEQUENCE64_CR;
7948 if (phba->link_flag & LS_LOOPBACK_MODE)
7949 bf_set(wqe_xo, &wqe->xmit_sequence.wge_ctl, 1);
7950 case CMD_XMIT_SEQUENCE64_CR:
7951 /* word3 iocb=io_tag32 wqe=reserved */
7952 wqe->xmit_sequence.rsvd3 = 0;
7953 /* word4 relative_offset memcpy */
7954 /* word5 r_ctl/df_ctl memcpy */
7955 bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0);
7956 bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1);
7957 bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com,
7958 LPFC_WQE_IOD_WRITE);
7959 bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com,
7960 LPFC_WQE_LENLOC_WORD12);
7961 bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0);
7962 wqe->xmit_sequence.xmit_len = xmit_len;
7963 command_type = OTHER_COMMAND;
7965 case CMD_XMIT_BCAST64_CN:
7966 /* word3 iocb=iotag32 wqe=seq_payload_len */
7967 wqe->xmit_bcast64.seq_payload_len = xmit_len;
7968 /* word4 iocb=rsvd wqe=rsvd */
7969 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
7970 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
7971 bf_set(wqe_ct, &wqe->xmit_bcast64.wqe_com,
7972 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
7973 bf_set(wqe_dbde, &wqe->xmit_bcast64.wqe_com, 1);
7974 bf_set(wqe_iod, &wqe->xmit_bcast64.wqe_com, LPFC_WQE_IOD_WRITE);
7975 bf_set(wqe_lenloc, &wqe->xmit_bcast64.wqe_com,
7976 LPFC_WQE_LENLOC_WORD3);
7977 bf_set(wqe_ebde_cnt, &wqe->xmit_bcast64.wqe_com, 0);
7979 case CMD_FCP_IWRITE64_CR:
7980 command_type = FCP_COMMAND_DATA_OUT;
7981 /* word3 iocb=iotag wqe=payload_offset_len */
7982 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
7983 wqe->fcp_iwrite.payload_offset_len =
7984 xmit_len + sizeof(struct fcp_rsp);
7985 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
7986 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
7987 bf_set(wqe_erp, &wqe->fcp_iwrite.wqe_com,
7988 iocbq->iocb.ulpFCP2Rcvy);
7989 bf_set(wqe_lnk, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpXS);
7990 /* Always open the exchange */
7991 bf_set(wqe_xc, &wqe->fcp_iwrite.wqe_com, 0);
7992 bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE);
7993 bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com,
7994 LPFC_WQE_LENLOC_WORD4);
7995 bf_set(wqe_ebde_cnt, &wqe->fcp_iwrite.wqe_com, 0);
7996 bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpPU);
7997 if (iocbq->iocb_flag & LPFC_IO_DIF) {
7998 iocbq->iocb_flag &= ~LPFC_IO_DIF;
7999 bf_set(wqe_dif, &wqe->generic.wqe_com, 1);
8001 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 1);
8003 case CMD_FCP_IREAD64_CR:
8004 /* word3 iocb=iotag wqe=payload_offset_len */
8005 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8006 wqe->fcp_iread.payload_offset_len =
8007 xmit_len + sizeof(struct fcp_rsp);
8008 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8009 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8010 bf_set(wqe_erp, &wqe->fcp_iread.wqe_com,
8011 iocbq->iocb.ulpFCP2Rcvy);
8012 bf_set(wqe_lnk, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpXS);
8013 /* Always open the exchange */
8014 bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
8015 bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ);
8016 bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com,
8017 LPFC_WQE_LENLOC_WORD4);
8018 bf_set(wqe_ebde_cnt, &wqe->fcp_iread.wqe_com, 0);
8019 bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpPU);
8020 if (iocbq->iocb_flag & LPFC_IO_DIF) {
8021 iocbq->iocb_flag &= ~LPFC_IO_DIF;
8022 bf_set(wqe_dif, &wqe->generic.wqe_com, 1);
8024 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 1);
8026 case CMD_FCP_ICMND64_CR:
8027 /* word3 iocb=IO_TAG wqe=reserved */
8028 wqe->fcp_icmd.rsrvd3 = 0;
8029 bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0);
8030 /* Always open the exchange */
8031 bf_set(wqe_xc, &wqe->fcp_icmd.wqe_com, 0);
8032 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 1);
8033 bf_set(wqe_iod, &wqe->fcp_icmd.wqe_com, LPFC_WQE_IOD_WRITE);
8034 bf_set(wqe_qosd, &wqe->fcp_icmd.wqe_com, 1);
8035 bf_set(wqe_lenloc, &wqe->fcp_icmd.wqe_com,
8036 LPFC_WQE_LENLOC_NONE);
8037 bf_set(wqe_ebde_cnt, &wqe->fcp_icmd.wqe_com, 0);
8039 case CMD_GEN_REQUEST64_CR:
8040 /* For this command calculate the xmit length of the
8044 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
8045 sizeof(struct ulp_bde64);
8046 for (i = 0; i < numBdes; i++) {
8047 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
8048 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
8050 xmit_len += bde.tus.f.bdeSize;
8052 /* word3 iocb=IO_TAG wqe=request_payload_len */
8053 wqe->gen_req.request_payload_len = xmit_len;
8054 /* word4 iocb=parameter wqe=relative_offset memcpy */
8055 /* word5 [rctl, type, df_ctl, la] copied in memcpy */
8056 /* word6 context tag copied in memcpy */
8057 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
8058 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
8059 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8060 "2015 Invalid CT %x command 0x%x\n",
8061 ct, iocbq->iocb.ulpCommand);
8064 bf_set(wqe_ct, &wqe->gen_req.wqe_com, 0);
8065 bf_set(wqe_tmo, &wqe->gen_req.wqe_com, iocbq->iocb.ulpTimeout);
8066 bf_set(wqe_pu, &wqe->gen_req.wqe_com, iocbq->iocb.ulpPU);
8067 bf_set(wqe_dbde, &wqe->gen_req.wqe_com, 1);
8068 bf_set(wqe_iod, &wqe->gen_req.wqe_com, LPFC_WQE_IOD_READ);
8069 bf_set(wqe_qosd, &wqe->gen_req.wqe_com, 1);
8070 bf_set(wqe_lenloc, &wqe->gen_req.wqe_com, LPFC_WQE_LENLOC_NONE);
8071 bf_set(wqe_ebde_cnt, &wqe->gen_req.wqe_com, 0);
8072 command_type = OTHER_COMMAND;
8074 case CMD_XMIT_ELS_RSP64_CX:
8075 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8076 /* words0-2 BDE memcpy */
8077 /* word3 iocb=iotag32 wqe=response_payload_len */
8078 wqe->xmit_els_rsp.response_payload_len = xmit_len;
8080 wqe->xmit_els_rsp.word4 = 0;
8081 /* word5 iocb=rsvd wge=did */
8082 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
8083 iocbq->iocb.un.xseq64.xmit_els_remoteID);
8085 if_type = bf_get(lpfc_sli_intf_if_type,
8086 &phba->sli4_hba.sli_intf);
8087 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8088 if (iocbq->vport->fc_flag & FC_PT2PT) {
8089 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
8090 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
8091 iocbq->vport->fc_myDID);
8092 if (iocbq->vport->fc_myDID == Fabric_DID) {
8094 &wqe->xmit_els_rsp.wqe_dest, 0);
8098 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com,
8099 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8100 bf_set(wqe_pu, &wqe->xmit_els_rsp.wqe_com, iocbq->iocb.ulpPU);
8101 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
8102 iocbq->iocb.unsli3.rcvsli3.ox_id);
8103 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
8104 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
8105 phba->vpi_ids[iocbq->vport->vpi]);
8106 bf_set(wqe_dbde, &wqe->xmit_els_rsp.wqe_com, 1);
8107 bf_set(wqe_iod, &wqe->xmit_els_rsp.wqe_com, LPFC_WQE_IOD_WRITE);
8108 bf_set(wqe_qosd, &wqe->xmit_els_rsp.wqe_com, 1);
8109 bf_set(wqe_lenloc, &wqe->xmit_els_rsp.wqe_com,
8110 LPFC_WQE_LENLOC_WORD3);
8111 bf_set(wqe_ebde_cnt, &wqe->xmit_els_rsp.wqe_com, 0);
8112 bf_set(wqe_rsp_temp_rpi, &wqe->xmit_els_rsp,
8113 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8114 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
8115 iocbq->context2)->virt);
8116 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
8117 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
8118 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
8119 iocbq->vport->fc_myDID);
8120 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com, 1);
8121 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
8122 phba->vpi_ids[phba->pport->vpi]);
8124 command_type = OTHER_COMMAND;
8126 case CMD_CLOSE_XRI_CN:
8127 case CMD_ABORT_XRI_CN:
8128 case CMD_ABORT_XRI_CX:
8129 /* words 0-2 memcpy should be 0 rserved */
8130 /* port will send abts */
8131 abrt_iotag = iocbq->iocb.un.acxri.abortContextTag;
8132 if (abrt_iotag != 0 && abrt_iotag <= phba->sli.last_iotag) {
8133 abrtiocbq = phba->sli.iocbq_lookup[abrt_iotag];
8134 fip = abrtiocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK;
8138 if ((iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN) || fip)
8140 * The link is down, or the command was ELS_FIP
8141 * so the fw does not need to send abts
8144 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
8146 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
8147 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
8148 /* word5 iocb=CONTEXT_TAG|IO_TAG wqe=reserved */
8149 wqe->abort_cmd.rsrvd5 = 0;
8150 bf_set(wqe_ct, &wqe->abort_cmd.wqe_com,
8151 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8152 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
8154 * The abort handler will send us CMD_ABORT_XRI_CN or
8155 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
8157 bf_set(wqe_cmnd, &wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
8158 bf_set(wqe_qosd, &wqe->abort_cmd.wqe_com, 1);
8159 bf_set(wqe_lenloc, &wqe->abort_cmd.wqe_com,
8160 LPFC_WQE_LENLOC_NONE);
8161 cmnd = CMD_ABORT_XRI_CX;
8162 command_type = OTHER_COMMAND;
8165 case CMD_XMIT_BLS_RSP64_CX:
8166 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8167 /* As BLS ABTS RSP WQE is very different from other WQEs,
8168 * we re-construct this WQE here based on information in
8169 * iocbq from scratch.
8171 memset(wqe, 0, sizeof(union lpfc_wqe));
8172 /* OX_ID is invariable to who sent ABTS to CT exchange */
8173 bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
8174 bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_rsp));
8175 if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_rsp) ==
8176 LPFC_ABTS_UNSOL_INT) {
8177 /* ABTS sent by initiator to CT exchange, the
8178 * RX_ID field will be filled with the newly
8179 * allocated responder XRI.
8181 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
8182 iocbq->sli4_xritag);
8184 /* ABTS sent by responder to CT exchange, the
8185 * RX_ID field will be filled with the responder
8188 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
8189 bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_rsp));
8191 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
8192 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
8195 bf_set(wqe_els_did, &wqe->xmit_bls_rsp.wqe_dest,
8197 bf_set(xmit_bls_rsp64_temprpi, &wqe->xmit_bls_rsp,
8198 iocbq->iocb.ulpContext);
8199 bf_set(wqe_ct, &wqe->xmit_bls_rsp.wqe_com, 1);
8200 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
8201 phba->vpi_ids[phba->pport->vpi]);
8202 bf_set(wqe_qosd, &wqe->xmit_bls_rsp.wqe_com, 1);
8203 bf_set(wqe_lenloc, &wqe->xmit_bls_rsp.wqe_com,
8204 LPFC_WQE_LENLOC_NONE);
8205 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
8206 command_type = OTHER_COMMAND;
8207 if (iocbq->iocb.un.xseq64.w5.hcsw.Rctl == FC_RCTL_BA_RJT) {
8208 bf_set(xmit_bls_rsp64_rjt_vspec, &wqe->xmit_bls_rsp,
8209 bf_get(lpfc_vndr_code, &iocbq->iocb.un.bls_rsp));
8210 bf_set(xmit_bls_rsp64_rjt_expc, &wqe->xmit_bls_rsp,
8211 bf_get(lpfc_rsn_expln, &iocbq->iocb.un.bls_rsp));
8212 bf_set(xmit_bls_rsp64_rjt_rsnc, &wqe->xmit_bls_rsp,
8213 bf_get(lpfc_rsn_code, &iocbq->iocb.un.bls_rsp));
8217 case CMD_XRI_ABORTED_CX:
8218 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
8219 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
8220 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
8221 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
8222 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
8224 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8225 "2014 Invalid command 0x%x\n",
8226 iocbq->iocb.ulpCommand);
8231 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
8232 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
8233 wqe->generic.wqe_com.abort_tag = abort_tag;
8234 bf_set(wqe_cmd_type, &wqe->generic.wqe_com, command_type);
8235 bf_set(wqe_cmnd, &wqe->generic.wqe_com, cmnd);
8236 bf_set(wqe_class, &wqe->generic.wqe_com, iocbq->iocb.ulpClass);
8237 bf_set(wqe_cqid, &wqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
8242 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
8243 * @phba: Pointer to HBA context object.
8244 * @ring_number: SLI ring number to issue iocb on.
8245 * @piocb: Pointer to command iocb.
8246 * @flag: Flag indicating if this command can be put into txq.
8248 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
8249 * an iocb command to an HBA with SLI-4 interface spec.
8251 * This function is called with hbalock held. The function will return success
8252 * after it successfully submit the iocb to firmware or after adding to the
8256 __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
8257 struct lpfc_iocbq *piocb, uint32_t flag)
8259 struct lpfc_sglq *sglq;
8261 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
8263 if (piocb->sli4_xritag == NO_XRI) {
8264 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
8265 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
8268 if (pring->txq_cnt) {
8269 if (!(flag & SLI_IOCB_RET_IOCB)) {
8270 __lpfc_sli_ringtx_put(phba,
8272 return IOCB_SUCCESS;
8277 sglq = __lpfc_sli_get_sglq(phba, piocb);
8279 if (!(flag & SLI_IOCB_RET_IOCB)) {
8280 __lpfc_sli_ringtx_put(phba,
8283 return IOCB_SUCCESS;
8289 } else if (piocb->iocb_flag & LPFC_IO_FCP) {
8290 /* These IO's already have an XRI and a mapped sgl. */
8294 * This is a continuation of a commandi,(CX) so this
8295 * sglq is on the active list
8297 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_xritag);
8303 piocb->sli4_lxritag = sglq->sli4_lxritag;
8304 piocb->sli4_xritag = sglq->sli4_xritag;
8305 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocb, sglq))
8309 if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe))
8312 if ((piocb->iocb_flag & LPFC_IO_FCP) ||
8313 (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
8315 * For FCP command IOCB, get a new WQ index to distribute
8316 * WQE across the WQsr. On the other hand, for abort IOCB,
8317 * it carries the same WQ index to the original command
8320 if (piocb->iocb_flag & LPFC_IO_FCP)
8321 piocb->fcp_wqidx = lpfc_sli4_scmd_to_wqidx_distr(phba);
8322 if (unlikely(!phba->sli4_hba.fcp_wq))
8324 if (lpfc_sli4_wq_put(phba->sli4_hba.fcp_wq[piocb->fcp_wqidx],
8328 if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
8331 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
8337 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
8339 * This routine wraps the actual lockless version for issusing IOCB function
8340 * pointer from the lpfc_hba struct.
8343 * IOCB_ERROR - Error
8344 * IOCB_SUCCESS - Success
8348 __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
8349 struct lpfc_iocbq *piocb, uint32_t flag)
8351 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
8355 * lpfc_sli_api_table_setup - Set up sli api function jump table
8356 * @phba: The hba struct for which this call is being executed.
8357 * @dev_grp: The HBA PCI-Device group number.
8359 * This routine sets up the SLI interface API function jump table in @phba
8361 * Returns: 0 - success, -ENODEV - failure.
8364 lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
8368 case LPFC_PCI_DEV_LP:
8369 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
8370 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
8372 case LPFC_PCI_DEV_OC:
8373 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
8374 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
8377 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8378 "1419 Invalid HBA PCI-device group: 0x%x\n",
8383 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
8388 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
8389 * @phba: Pointer to HBA context object.
8390 * @pring: Pointer to driver SLI ring object.
8391 * @piocb: Pointer to command iocb.
8392 * @flag: Flag indicating if this command can be put into txq.
8394 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
8395 * function. This function gets the hbalock and calls
8396 * __lpfc_sli_issue_iocb function and will return the error returned
8397 * by __lpfc_sli_issue_iocb function. This wrapper is used by
8398 * functions which do not hold hbalock.
8401 lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
8402 struct lpfc_iocbq *piocb, uint32_t flag)
8404 unsigned long iflags;
8407 spin_lock_irqsave(&phba->hbalock, iflags);
8408 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
8409 spin_unlock_irqrestore(&phba->hbalock, iflags);
8415 * lpfc_extra_ring_setup - Extra ring setup function
8416 * @phba: Pointer to HBA context object.
8418 * This function is called while driver attaches with the
8419 * HBA to setup the extra ring. The extra ring is used
8420 * only when driver needs to support target mode functionality
8421 * or IP over FC functionalities.
8423 * This function is called with no lock held.
8426 lpfc_extra_ring_setup( struct lpfc_hba *phba)
8428 struct lpfc_sli *psli;
8429 struct lpfc_sli_ring *pring;
8433 /* Adjust cmd/rsp ring iocb entries more evenly */
8435 /* Take some away from the FCP ring */
8436 pring = &psli->ring[psli->fcp_ring];
8437 pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8438 pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8439 pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8440 pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
8442 /* and give them to the extra ring */
8443 pring = &psli->ring[psli->extra_ring];
8445 pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8446 pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8447 pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8448 pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
8450 /* Setup default profile for this ring */
8451 pring->iotag_max = 4096;
8452 pring->num_mask = 1;
8453 pring->prt[0].profile = 0; /* Mask 0 */
8454 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
8455 pring->prt[0].type = phba->cfg_multi_ring_type;
8456 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
8460 /* lpfc_sli_abts_recover_port - Recover a port that failed an ABTS.
8461 * @vport: pointer to virtual port object.
8462 * @ndlp: nodelist pointer for the impacted rport.
8464 * The driver calls this routine in response to a XRI ABORT CQE
8465 * event from the port. In this event, the driver is required to
8466 * recover its login to the rport even though its login may be valid
8467 * from the driver's perspective. The failed ABTS notice from the
8468 * port indicates the rport is not responding.
8471 lpfc_sli_abts_recover_port(struct lpfc_vport *vport,
8472 struct lpfc_nodelist *ndlp)
8474 struct Scsi_Host *shost;
8475 struct lpfc_hba *phba;
8476 unsigned long flags = 0;
8478 shost = lpfc_shost_from_vport(vport);
8480 if (ndlp->nlp_state != NLP_STE_MAPPED_NODE) {
8481 lpfc_printf_log(phba, KERN_INFO,
8482 LOG_SLI, "3093 No rport recovery needed. "
8483 "rport in state 0x%x\n",
8487 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8488 "3094 Start rport recovery on shost id 0x%x "
8489 "fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x "
8491 shost->host_no, ndlp->nlp_DID,
8492 vport->vpi, ndlp->nlp_rpi, ndlp->nlp_state,
8495 * The rport is not responding. Don't attempt ADISC recovery.
8496 * Remove the FCP-2 flag to force a PLOGI.
8498 spin_lock_irqsave(shost->host_lock, flags);
8499 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
8500 spin_unlock_irqrestore(shost->host_lock, flags);
8501 lpfc_disc_state_machine(vport, ndlp, NULL,
8502 NLP_EVT_DEVICE_RECOVERY);
8503 lpfc_cancel_retry_delay_tmo(vport, ndlp);
8504 spin_lock_irqsave(shost->host_lock, flags);
8505 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
8506 spin_unlock_irqrestore(shost->host_lock, flags);
8507 lpfc_disc_start(vport);
8510 /* lpfc_sli_abts_err_handler - handle a failed ABTS request from an SLI3 port.
8511 * @phba: Pointer to HBA context object.
8512 * @iocbq: Pointer to iocb object.
8514 * The async_event handler calls this routine when it receives
8515 * an ASYNC_STATUS_CN event from the port. The port generates
8516 * this event when an Abort Sequence request to an rport fails
8517 * twice in succession. The abort could be originated by the
8518 * driver or by the port. The ABTS could have been for an ELS
8519 * or FCP IO. The port only generates this event when an ABTS
8520 * fails to complete after one retry.
8523 lpfc_sli_abts_err_handler(struct lpfc_hba *phba,
8524 struct lpfc_iocbq *iocbq)
8526 struct lpfc_nodelist *ndlp = NULL;
8527 uint16_t rpi = 0, vpi = 0;
8528 struct lpfc_vport *vport = NULL;
8530 /* The rpi in the ulpContext is vport-sensitive. */
8531 vpi = iocbq->iocb.un.asyncstat.sub_ctxt_tag;
8532 rpi = iocbq->iocb.ulpContext;
8534 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8535 "3092 Port generated ABTS async event "
8536 "on vpi %d rpi %d status 0x%x\n",
8537 vpi, rpi, iocbq->iocb.ulpStatus);
8539 vport = lpfc_find_vport_by_vpid(phba, vpi);
8542 ndlp = lpfc_findnode_rpi(vport, rpi);
8543 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
8546 if (iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT)
8547 lpfc_sli_abts_recover_port(vport, ndlp);
8551 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8552 "3095 Event Context not found, no "
8553 "action on vpi %d rpi %d status 0x%x, reason 0x%x\n",
8554 iocbq->iocb.ulpContext, iocbq->iocb.ulpStatus,
8558 /* lpfc_sli4_abts_err_handler - handle a failed ABTS request from an SLI4 port.
8559 * @phba: pointer to HBA context object.
8560 * @ndlp: nodelist pointer for the impacted rport.
8561 * @axri: pointer to the wcqe containing the failed exchange.
8563 * The driver calls this routine when it receives an ABORT_XRI_FCP CQE from the
8564 * port. The port generates this event when an abort exchange request to an
8565 * rport fails twice in succession with no reply. The abort could be originated
8566 * by the driver or by the port. The ABTS could have been for an ELS or FCP IO.
8569 lpfc_sli4_abts_err_handler(struct lpfc_hba *phba,
8570 struct lpfc_nodelist *ndlp,
8571 struct sli4_wcqe_xri_aborted *axri)
8573 struct lpfc_vport *vport;
8574 uint32_t ext_status = 0;
8576 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
8577 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8578 "3115 Node Context not found, driver "
8579 "ignoring abts err event\n");
8583 vport = ndlp->vport;
8584 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8585 "3116 Port generated FCP XRI ABORT event on "
8586 "vpi %d rpi %d xri x%x status 0x%x parameter x%x\n",
8587 ndlp->vport->vpi, ndlp->nlp_rpi,
8588 bf_get(lpfc_wcqe_xa_xri, axri),
8589 bf_get(lpfc_wcqe_xa_status, axri),
8593 * Catch the ABTS protocol failure case. Older OCe FW releases returned
8594 * LOCAL_REJECT and 0 for a failed ABTS exchange and later OCe and
8595 * LPe FW releases returned LOCAL_REJECT and SEQUENCE_TIMEOUT.
8597 ext_status = axri->parameter & WCQE_PARAM_MASK;
8598 if ((bf_get(lpfc_wcqe_xa_status, axri) == IOSTAT_LOCAL_REJECT) &&
8599 ((ext_status == IOERR_SEQUENCE_TIMEOUT) || (ext_status == 0)))
8600 lpfc_sli_abts_recover_port(vport, ndlp);
8604 * lpfc_sli_async_event_handler - ASYNC iocb handler function
8605 * @phba: Pointer to HBA context object.
8606 * @pring: Pointer to driver SLI ring object.
8607 * @iocbq: Pointer to iocb object.
8609 * This function is called by the slow ring event handler
8610 * function when there is an ASYNC event iocb in the ring.
8611 * This function is called with no lock held.
8612 * Currently this function handles only temperature related
8613 * ASYNC events. The function decodes the temperature sensor
8614 * event message and posts events for the management applications.
8617 lpfc_sli_async_event_handler(struct lpfc_hba * phba,
8618 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
8622 struct temp_event temp_event_data;
8623 struct Scsi_Host *shost;
8626 icmd = &iocbq->iocb;
8627 evt_code = icmd->un.asyncstat.evt_code;
8630 case ASYNC_TEMP_WARN:
8631 case ASYNC_TEMP_SAFE:
8632 temp_event_data.data = (uint32_t) icmd->ulpContext;
8633 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
8634 if (evt_code == ASYNC_TEMP_WARN) {
8635 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
8636 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
8637 "0347 Adapter is very hot, please take "
8638 "corrective action. temperature : %d Celsius\n",
8639 (uint32_t) icmd->ulpContext);
8641 temp_event_data.event_code = LPFC_NORMAL_TEMP;
8642 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
8643 "0340 Adapter temperature is OK now. "
8644 "temperature : %d Celsius\n",
8645 (uint32_t) icmd->ulpContext);
8648 /* Send temperature change event to applications */
8649 shost = lpfc_shost_from_vport(phba->pport);
8650 fc_host_post_vendor_event(shost, fc_get_event_number(),
8651 sizeof(temp_event_data), (char *) &temp_event_data,
8654 case ASYNC_STATUS_CN:
8655 lpfc_sli_abts_err_handler(phba, iocbq);
8658 iocb_w = (uint32_t *) icmd;
8659 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8660 "0346 Ring %d handler: unexpected ASYNC_STATUS"
8662 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
8663 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
8664 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
8665 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
8666 pring->ringno, icmd->un.asyncstat.evt_code,
8667 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
8668 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
8669 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
8670 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
8678 * lpfc_sli_setup - SLI ring setup function
8679 * @phba: Pointer to HBA context object.
8681 * lpfc_sli_setup sets up rings of the SLI interface with
8682 * number of iocbs per ring and iotags. This function is
8683 * called while driver attach to the HBA and before the
8684 * interrupts are enabled. So there is no need for locking.
8686 * This function always returns 0.
8689 lpfc_sli_setup(struct lpfc_hba *phba)
8691 int i, totiocbsize = 0;
8692 struct lpfc_sli *psli = &phba->sli;
8693 struct lpfc_sli_ring *pring;
8695 psli->num_rings = MAX_CONFIGURED_RINGS;
8697 psli->fcp_ring = LPFC_FCP_RING;
8698 psli->next_ring = LPFC_FCP_NEXT_RING;
8699 psli->extra_ring = LPFC_EXTRA_RING;
8701 psli->iocbq_lookup = NULL;
8702 psli->iocbq_lookup_len = 0;
8703 psli->last_iotag = 0;
8705 for (i = 0; i < psli->num_rings; i++) {
8706 pring = &psli->ring[i];
8708 case LPFC_FCP_RING: /* ring 0 - FCP */
8709 /* numCiocb and numRiocb are used in config_port */
8710 pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
8711 pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
8712 pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8713 pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8714 pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8715 pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
8716 pring->sizeCiocb = (phba->sli_rev == 3) ?
8717 SLI3_IOCB_CMD_SIZE :
8719 pring->sizeRiocb = (phba->sli_rev == 3) ?
8720 SLI3_IOCB_RSP_SIZE :
8722 pring->iotag_ctr = 0;
8724 (phba->cfg_hba_queue_depth * 2);
8725 pring->fast_iotag = pring->iotag_max;
8726 pring->num_mask = 0;
8728 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
8729 /* numCiocb and numRiocb are used in config_port */
8730 pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
8731 pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
8732 pring->sizeCiocb = (phba->sli_rev == 3) ?
8733 SLI3_IOCB_CMD_SIZE :
8735 pring->sizeRiocb = (phba->sli_rev == 3) ?
8736 SLI3_IOCB_RSP_SIZE :
8738 pring->iotag_max = phba->cfg_hba_queue_depth;
8739 pring->num_mask = 0;
8741 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
8742 /* numCiocb and numRiocb are used in config_port */
8743 pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
8744 pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
8745 pring->sizeCiocb = (phba->sli_rev == 3) ?
8746 SLI3_IOCB_CMD_SIZE :
8748 pring->sizeRiocb = (phba->sli_rev == 3) ?
8749 SLI3_IOCB_RSP_SIZE :
8751 pring->fast_iotag = 0;
8752 pring->iotag_ctr = 0;
8753 pring->iotag_max = 4096;
8754 pring->lpfc_sli_rcv_async_status =
8755 lpfc_sli_async_event_handler;
8756 pring->num_mask = LPFC_MAX_RING_MASK;
8757 pring->prt[0].profile = 0; /* Mask 0 */
8758 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
8759 pring->prt[0].type = FC_TYPE_ELS;
8760 pring->prt[0].lpfc_sli_rcv_unsol_event =
8761 lpfc_els_unsol_event;
8762 pring->prt[1].profile = 0; /* Mask 1 */
8763 pring->prt[1].rctl = FC_RCTL_ELS_REP;
8764 pring->prt[1].type = FC_TYPE_ELS;
8765 pring->prt[1].lpfc_sli_rcv_unsol_event =
8766 lpfc_els_unsol_event;
8767 pring->prt[2].profile = 0; /* Mask 2 */
8768 /* NameServer Inquiry */
8769 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
8771 pring->prt[2].type = FC_TYPE_CT;
8772 pring->prt[2].lpfc_sli_rcv_unsol_event =
8773 lpfc_ct_unsol_event;
8774 pring->prt[3].profile = 0; /* Mask 3 */
8775 /* NameServer response */
8776 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
8778 pring->prt[3].type = FC_TYPE_CT;
8779 pring->prt[3].lpfc_sli_rcv_unsol_event =
8780 lpfc_ct_unsol_event;
8781 /* abort unsolicited sequence */
8782 pring->prt[4].profile = 0; /* Mask 4 */
8783 pring->prt[4].rctl = FC_RCTL_BA_ABTS;
8784 pring->prt[4].type = FC_TYPE_BLS;
8785 pring->prt[4].lpfc_sli_rcv_unsol_event =
8786 lpfc_sli4_ct_abort_unsol_event;
8789 totiocbsize += (pring->numCiocb * pring->sizeCiocb) +
8790 (pring->numRiocb * pring->sizeRiocb);
8792 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
8793 /* Too many cmd / rsp ring entries in SLI2 SLIM */
8794 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
8795 "SLI2 SLIM Data: x%x x%lx\n",
8796 phba->brd_no, totiocbsize,
8797 (unsigned long) MAX_SLIM_IOCB_SIZE);
8799 if (phba->cfg_multi_ring_support == 2)
8800 lpfc_extra_ring_setup(phba);
8806 * lpfc_sli_queue_setup - Queue initialization function
8807 * @phba: Pointer to HBA context object.
8809 * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each
8810 * ring. This function also initializes ring indices of each ring.
8811 * This function is called during the initialization of the SLI
8812 * interface of an HBA.
8813 * This function is called with no lock held and always returns
8817 lpfc_sli_queue_setup(struct lpfc_hba *phba)
8819 struct lpfc_sli *psli;
8820 struct lpfc_sli_ring *pring;
8824 spin_lock_irq(&phba->hbalock);
8825 INIT_LIST_HEAD(&psli->mboxq);
8826 INIT_LIST_HEAD(&psli->mboxq_cmpl);
8827 /* Initialize list headers for txq and txcmplq as double linked lists */
8828 for (i = 0; i < psli->num_rings; i++) {
8829 pring = &psli->ring[i];
8831 pring->next_cmdidx = 0;
8832 pring->local_getidx = 0;
8834 INIT_LIST_HEAD(&pring->txq);
8835 INIT_LIST_HEAD(&pring->txcmplq);
8836 INIT_LIST_HEAD(&pring->iocb_continueq);
8837 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
8838 INIT_LIST_HEAD(&pring->postbufq);
8840 spin_unlock_irq(&phba->hbalock);
8845 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
8846 * @phba: Pointer to HBA context object.
8848 * This routine flushes the mailbox command subsystem. It will unconditionally
8849 * flush all the mailbox commands in the three possible stages in the mailbox
8850 * command sub-system: pending mailbox command queue; the outstanding mailbox
8851 * command; and completed mailbox command queue. It is caller's responsibility
8852 * to make sure that the driver is in the proper state to flush the mailbox
8853 * command sub-system. Namely, the posting of mailbox commands into the
8854 * pending mailbox command queue from the various clients must be stopped;
8855 * either the HBA is in a state that it will never works on the outstanding
8856 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
8857 * mailbox command has been completed.
8860 lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
8862 LIST_HEAD(completions);
8863 struct lpfc_sli *psli = &phba->sli;
8865 unsigned long iflag;
8867 /* Flush all the mailbox commands in the mbox system */
8868 spin_lock_irqsave(&phba->hbalock, iflag);
8869 /* The pending mailbox command queue */
8870 list_splice_init(&phba->sli.mboxq, &completions);
8871 /* The outstanding active mailbox command */
8872 if (psli->mbox_active) {
8873 list_add_tail(&psli->mbox_active->list, &completions);
8874 psli->mbox_active = NULL;
8875 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8877 /* The completed mailbox command queue */
8878 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
8879 spin_unlock_irqrestore(&phba->hbalock, iflag);
8881 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
8882 while (!list_empty(&completions)) {
8883 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
8884 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
8886 pmb->mbox_cmpl(phba, pmb);
8891 * lpfc_sli_host_down - Vport cleanup function
8892 * @vport: Pointer to virtual port object.
8894 * lpfc_sli_host_down is called to clean up the resources
8895 * associated with a vport before destroying virtual
8896 * port data structures.
8897 * This function does following operations:
8898 * - Free discovery resources associated with this virtual
8900 * - Free iocbs associated with this virtual port in
8902 * - Send abort for all iocb commands associated with this
8905 * This function is called with no lock held and always returns 1.
8908 lpfc_sli_host_down(struct lpfc_vport *vport)
8910 LIST_HEAD(completions);
8911 struct lpfc_hba *phba = vport->phba;
8912 struct lpfc_sli *psli = &phba->sli;
8913 struct lpfc_sli_ring *pring;
8914 struct lpfc_iocbq *iocb, *next_iocb;
8916 unsigned long flags = 0;
8917 uint16_t prev_pring_flag;
8919 lpfc_cleanup_discovery_resources(vport);
8921 spin_lock_irqsave(&phba->hbalock, flags);
8922 for (i = 0; i < psli->num_rings; i++) {
8923 pring = &psli->ring[i];
8924 prev_pring_flag = pring->flag;
8925 /* Only slow rings */
8926 if (pring->ringno == LPFC_ELS_RING) {
8927 pring->flag |= LPFC_DEFERRED_RING_EVENT;
8928 /* Set the lpfc data pending flag */
8929 set_bit(LPFC_DATA_READY, &phba->data_flags);
8932 * Error everything on the txq since these iocbs have not been
8933 * given to the FW yet.
8935 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
8936 if (iocb->vport != vport)
8938 list_move_tail(&iocb->list, &completions);
8942 /* Next issue ABTS for everything on the txcmplq */
8943 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq,
8945 if (iocb->vport != vport)
8947 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
8950 pring->flag = prev_pring_flag;
8953 spin_unlock_irqrestore(&phba->hbalock, flags);
8955 /* Cancel all the IOCBs from the completions list */
8956 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
8962 * lpfc_sli_hba_down - Resource cleanup function for the HBA
8963 * @phba: Pointer to HBA context object.
8965 * This function cleans up all iocb, buffers, mailbox commands
8966 * while shutting down the HBA. This function is called with no
8967 * lock held and always returns 1.
8968 * This function does the following to cleanup driver resources:
8969 * - Free discovery resources for each virtual port
8970 * - Cleanup any pending fabric iocbs
8971 * - Iterate through the iocb txq and free each entry
8973 * - Free up any buffer posted to the HBA
8974 * - Free mailbox commands in the mailbox queue.
8977 lpfc_sli_hba_down(struct lpfc_hba *phba)
8979 LIST_HEAD(completions);
8980 struct lpfc_sli *psli = &phba->sli;
8981 struct lpfc_sli_ring *pring;
8982 struct lpfc_dmabuf *buf_ptr;
8983 unsigned long flags = 0;
8986 /* Shutdown the mailbox command sub-system */
8987 lpfc_sli_mbox_sys_shutdown(phba, LPFC_MBX_WAIT);
8989 lpfc_hba_down_prep(phba);
8991 lpfc_fabric_abort_hba(phba);
8993 spin_lock_irqsave(&phba->hbalock, flags);
8994 for (i = 0; i < psli->num_rings; i++) {
8995 pring = &psli->ring[i];
8996 /* Only slow rings */
8997 if (pring->ringno == LPFC_ELS_RING) {
8998 pring->flag |= LPFC_DEFERRED_RING_EVENT;
8999 /* Set the lpfc data pending flag */
9000 set_bit(LPFC_DATA_READY, &phba->data_flags);
9004 * Error everything on the txq since these iocbs have not been
9005 * given to the FW yet.
9007 list_splice_init(&pring->txq, &completions);
9011 spin_unlock_irqrestore(&phba->hbalock, flags);
9013 /* Cancel all the IOCBs from the completions list */
9014 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9017 spin_lock_irqsave(&phba->hbalock, flags);
9018 list_splice_init(&phba->elsbuf, &completions);
9019 phba->elsbuf_cnt = 0;
9020 phba->elsbuf_prev_cnt = 0;
9021 spin_unlock_irqrestore(&phba->hbalock, flags);
9023 while (!list_empty(&completions)) {
9024 list_remove_head(&completions, buf_ptr,
9025 struct lpfc_dmabuf, list);
9026 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
9030 /* Return any active mbox cmds */
9031 del_timer_sync(&psli->mbox_tmo);
9033 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
9034 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
9035 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
9041 * lpfc_sli_pcimem_bcopy - SLI memory copy function
9042 * @srcp: Source memory pointer.
9043 * @destp: Destination memory pointer.
9044 * @cnt: Number of words required to be copied.
9046 * This function is used for copying data between driver memory
9047 * and the SLI memory. This function also changes the endianness
9048 * of each word if native endianness is different from SLI
9049 * endianness. This function can be called with or without
9053 lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
9055 uint32_t *src = srcp;
9056 uint32_t *dest = destp;
9060 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
9062 ldata = le32_to_cpu(ldata);
9071 * lpfc_sli_bemem_bcopy - SLI memory copy function
9072 * @srcp: Source memory pointer.
9073 * @destp: Destination memory pointer.
9074 * @cnt: Number of words required to be copied.
9076 * This function is used for copying data between a data structure
9077 * with big endian representation to local endianness.
9078 * This function can be called with or without lock.
9081 lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
9083 uint32_t *src = srcp;
9084 uint32_t *dest = destp;
9088 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
9090 ldata = be32_to_cpu(ldata);
9098 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
9099 * @phba: Pointer to HBA context object.
9100 * @pring: Pointer to driver SLI ring object.
9101 * @mp: Pointer to driver buffer object.
9103 * This function is called with no lock held.
9104 * It always return zero after adding the buffer to the postbufq
9108 lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9109 struct lpfc_dmabuf *mp)
9111 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
9113 spin_lock_irq(&phba->hbalock);
9114 list_add_tail(&mp->list, &pring->postbufq);
9115 pring->postbufq_cnt++;
9116 spin_unlock_irq(&phba->hbalock);
9121 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
9122 * @phba: Pointer to HBA context object.
9124 * When HBQ is enabled, buffers are searched based on tags. This function
9125 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
9126 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
9127 * does not conflict with tags of buffer posted for unsolicited events.
9128 * The function returns the allocated tag. The function is called with
9132 lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
9134 spin_lock_irq(&phba->hbalock);
9135 phba->buffer_tag_count++;
9137 * Always set the QUE_BUFTAG_BIT to distiguish between
9138 * a tag assigned by HBQ.
9140 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
9141 spin_unlock_irq(&phba->hbalock);
9142 return phba->buffer_tag_count;
9146 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
9147 * @phba: Pointer to HBA context object.
9148 * @pring: Pointer to driver SLI ring object.
9151 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
9152 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
9153 * iocb is posted to the response ring with the tag of the buffer.
9154 * This function searches the pring->postbufq list using the tag
9155 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
9156 * iocb. If the buffer is found then lpfc_dmabuf object of the
9157 * buffer is returned to the caller else NULL is returned.
9158 * This function is called with no lock held.
9160 struct lpfc_dmabuf *
9161 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9164 struct lpfc_dmabuf *mp, *next_mp;
9165 struct list_head *slp = &pring->postbufq;
9167 /* Search postbufq, from the beginning, looking for a match on tag */
9168 spin_lock_irq(&phba->hbalock);
9169 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
9170 if (mp->buffer_tag == tag) {
9171 list_del_init(&mp->list);
9172 pring->postbufq_cnt--;
9173 spin_unlock_irq(&phba->hbalock);
9178 spin_unlock_irq(&phba->hbalock);
9179 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9180 "0402 Cannot find virtual addr for buffer tag on "
9181 "ring %d Data x%lx x%p x%p x%x\n",
9182 pring->ringno, (unsigned long) tag,
9183 slp->next, slp->prev, pring->postbufq_cnt);
9189 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
9190 * @phba: Pointer to HBA context object.
9191 * @pring: Pointer to driver SLI ring object.
9192 * @phys: DMA address of the buffer.
9194 * This function searches the buffer list using the dma_address
9195 * of unsolicited event to find the driver's lpfc_dmabuf object
9196 * corresponding to the dma_address. The function returns the
9197 * lpfc_dmabuf object if a buffer is found else it returns NULL.
9198 * This function is called by the ct and els unsolicited event
9199 * handlers to get the buffer associated with the unsolicited
9202 * This function is called with no lock held.
9204 struct lpfc_dmabuf *
9205 lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9208 struct lpfc_dmabuf *mp, *next_mp;
9209 struct list_head *slp = &pring->postbufq;
9211 /* Search postbufq, from the beginning, looking for a match on phys */
9212 spin_lock_irq(&phba->hbalock);
9213 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
9214 if (mp->phys == phys) {
9215 list_del_init(&mp->list);
9216 pring->postbufq_cnt--;
9217 spin_unlock_irq(&phba->hbalock);
9222 spin_unlock_irq(&phba->hbalock);
9223 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9224 "0410 Cannot find virtual addr for mapped buf on "
9225 "ring %d Data x%llx x%p x%p x%x\n",
9226 pring->ringno, (unsigned long long)phys,
9227 slp->next, slp->prev, pring->postbufq_cnt);
9232 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
9233 * @phba: Pointer to HBA context object.
9234 * @cmdiocb: Pointer to driver command iocb object.
9235 * @rspiocb: Pointer to driver response iocb object.
9237 * This function is the completion handler for the abort iocbs for
9238 * ELS commands. This function is called from the ELS ring event
9239 * handler with no lock held. This function frees memory resources
9240 * associated with the abort iocb.
9243 lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9244 struct lpfc_iocbq *rspiocb)
9246 IOCB_t *irsp = &rspiocb->iocb;
9247 uint16_t abort_iotag, abort_context;
9248 struct lpfc_iocbq *abort_iocb = NULL;
9250 if (irsp->ulpStatus) {
9253 * Assume that the port already completed and returned, or
9254 * will return the iocb. Just Log the message.
9256 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
9257 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
9259 spin_lock_irq(&phba->hbalock);
9260 if (phba->sli_rev < LPFC_SLI_REV4) {
9261 if (abort_iotag != 0 &&
9262 abort_iotag <= phba->sli.last_iotag)
9264 phba->sli.iocbq_lookup[abort_iotag];
9266 /* For sli4 the abort_tag is the XRI,
9267 * so the abort routine puts the iotag of the iocb
9268 * being aborted in the context field of the abort
9271 abort_iocb = phba->sli.iocbq_lookup[abort_context];
9273 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI,
9274 "0327 Cannot abort els iocb %p "
9275 "with tag %x context %x, abort status %x, "
9277 abort_iocb, abort_iotag, abort_context,
9278 irsp->ulpStatus, irsp->un.ulpWord[4]);
9280 spin_unlock_irq(&phba->hbalock);
9282 lpfc_sli_release_iocbq(phba, cmdiocb);
9287 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
9288 * @phba: Pointer to HBA context object.
9289 * @cmdiocb: Pointer to driver command iocb object.
9290 * @rspiocb: Pointer to driver response iocb object.
9292 * The function is called from SLI ring event handler with no
9293 * lock held. This function is the completion handler for ELS commands
9294 * which are aborted. The function frees memory resources used for
9295 * the aborted ELS commands.
9298 lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9299 struct lpfc_iocbq *rspiocb)
9301 IOCB_t *irsp = &rspiocb->iocb;
9303 /* ELS cmd tag <ulpIoTag> completes */
9304 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
9305 "0139 Ignoring ELS cmd tag x%x completion Data: "
9307 irsp->ulpIoTag, irsp->ulpStatus,
9308 irsp->un.ulpWord[4], irsp->ulpTimeout);
9309 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
9310 lpfc_ct_free_iocb(phba, cmdiocb);
9312 lpfc_els_free_iocb(phba, cmdiocb);
9317 * lpfc_sli_abort_iotag_issue - Issue abort for a command iocb
9318 * @phba: Pointer to HBA context object.
9319 * @pring: Pointer to driver SLI ring object.
9320 * @cmdiocb: Pointer to driver command iocb object.
9322 * This function issues an abort iocb for the provided command iocb down to
9323 * the port. Other than the case the outstanding command iocb is an abort
9324 * request, this function issues abort out unconditionally. This function is
9325 * called with hbalock held. The function returns 0 when it fails due to
9326 * memory allocation failure or when the command iocb is an abort request.
9329 lpfc_sli_abort_iotag_issue(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9330 struct lpfc_iocbq *cmdiocb)
9332 struct lpfc_vport *vport = cmdiocb->vport;
9333 struct lpfc_iocbq *abtsiocbp;
9334 IOCB_t *icmd = NULL;
9335 IOCB_t *iabt = NULL;
9339 * There are certain command types we don't want to abort. And we
9340 * don't want to abort commands that are already in the process of
9343 icmd = &cmdiocb->iocb;
9344 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
9345 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
9346 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
9349 /* issue ABTS for this IOCB based on iotag */
9350 abtsiocbp = __lpfc_sli_get_iocbq(phba);
9351 if (abtsiocbp == NULL)
9354 /* This signals the response to set the correct status
9355 * before calling the completion handler
9357 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
9359 iabt = &abtsiocbp->iocb;
9360 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
9361 iabt->un.acxri.abortContextTag = icmd->ulpContext;
9362 if (phba->sli_rev == LPFC_SLI_REV4) {
9363 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
9364 iabt->un.acxri.abortContextTag = cmdiocb->iotag;
9367 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
9369 iabt->ulpClass = icmd->ulpClass;
9371 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
9372 abtsiocbp->fcp_wqidx = cmdiocb->fcp_wqidx;
9373 if (cmdiocb->iocb_flag & LPFC_IO_FCP)
9374 abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
9376 if (phba->link_state >= LPFC_LINK_UP)
9377 iabt->ulpCommand = CMD_ABORT_XRI_CN;
9379 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
9381 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
9383 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
9384 "0339 Abort xri x%x, original iotag x%x, "
9385 "abort cmd iotag x%x\n",
9386 iabt->un.acxri.abortIoTag,
9387 iabt->un.acxri.abortContextTag,
9389 retval = __lpfc_sli_issue_iocb(phba, pring->ringno, abtsiocbp, 0);
9392 __lpfc_sli_release_iocbq(phba, abtsiocbp);
9395 * Caller to this routine should check for IOCB_ERROR
9396 * and handle it properly. This routine no longer removes
9397 * iocb off txcmplq and call compl in case of IOCB_ERROR.
9403 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
9404 * @phba: Pointer to HBA context object.
9405 * @pring: Pointer to driver SLI ring object.
9406 * @cmdiocb: Pointer to driver command iocb object.
9408 * This function issues an abort iocb for the provided command iocb. In case
9409 * of unloading, the abort iocb will not be issued to commands on the ELS
9410 * ring. Instead, the callback function shall be changed to those commands
9411 * so that nothing happens when them finishes. This function is called with
9412 * hbalock held. The function returns 0 when the command iocb is an abort
9416 lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9417 struct lpfc_iocbq *cmdiocb)
9419 struct lpfc_vport *vport = cmdiocb->vport;
9420 int retval = IOCB_ERROR;
9421 IOCB_t *icmd = NULL;
9424 * There are certain command types we don't want to abort. And we
9425 * don't want to abort commands that are already in the process of
9428 icmd = &cmdiocb->iocb;
9429 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
9430 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
9431 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
9435 * If we're unloading, don't abort iocb on the ELS ring, but change
9436 * the callback so that nothing happens when it finishes.
9438 if ((vport->load_flag & FC_UNLOADING) &&
9439 (pring->ringno == LPFC_ELS_RING)) {
9440 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
9441 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
9443 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
9444 goto abort_iotag_exit;
9447 /* Now, we try to issue the abort to the cmdiocb out */
9448 retval = lpfc_sli_abort_iotag_issue(phba, pring, cmdiocb);
9452 * Caller to this routine should check for IOCB_ERROR
9453 * and handle it properly. This routine no longer removes
9454 * iocb off txcmplq and call compl in case of IOCB_ERROR.
9460 * lpfc_sli_iocb_ring_abort - Unconditionally abort all iocbs on an iocb ring
9461 * @phba: Pointer to HBA context object.
9462 * @pring: Pointer to driver SLI ring object.
9464 * This function aborts all iocbs in the given ring and frees all the iocb
9465 * objects in txq. This function issues abort iocbs unconditionally for all
9466 * the iocb commands in txcmplq. The iocbs in the txcmplq is not guaranteed
9467 * to complete before the return of this function. The caller is not required
9468 * to hold any locks.
9471 lpfc_sli_iocb_ring_abort(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
9473 LIST_HEAD(completions);
9474 struct lpfc_iocbq *iocb, *next_iocb;
9476 if (pring->ringno == LPFC_ELS_RING)
9477 lpfc_fabric_abort_hba(phba);
9479 spin_lock_irq(&phba->hbalock);
9481 /* Take off all the iocbs on txq for cancelling */
9482 list_splice_init(&pring->txq, &completions);
9485 /* Next issue ABTS for everything on the txcmplq */
9486 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
9487 lpfc_sli_abort_iotag_issue(phba, pring, iocb);
9489 spin_unlock_irq(&phba->hbalock);
9491 /* Cancel all the IOCBs from the completions list */
9492 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9497 * lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
9498 * @phba: pointer to lpfc HBA data structure.
9500 * This routine will abort all pending and outstanding iocbs to an HBA.
9503 lpfc_sli_hba_iocb_abort(struct lpfc_hba *phba)
9505 struct lpfc_sli *psli = &phba->sli;
9506 struct lpfc_sli_ring *pring;
9509 for (i = 0; i < psli->num_rings; i++) {
9510 pring = &psli->ring[i];
9511 lpfc_sli_iocb_ring_abort(phba, pring);
9516 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
9517 * @iocbq: Pointer to driver iocb object.
9518 * @vport: Pointer to driver virtual port object.
9519 * @tgt_id: SCSI ID of the target.
9520 * @lun_id: LUN ID of the scsi device.
9521 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
9523 * This function acts as an iocb filter for functions which abort or count
9524 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
9525 * 0 if the filtering criteria is met for the given iocb and will return
9526 * 1 if the filtering criteria is not met.
9527 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
9528 * given iocb is for the SCSI device specified by vport, tgt_id and
9530 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
9531 * given iocb is for the SCSI target specified by vport and tgt_id
9533 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
9534 * given iocb is for the SCSI host associated with the given vport.
9535 * This function is called with no locks held.
9538 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
9539 uint16_t tgt_id, uint64_t lun_id,
9540 lpfc_ctx_cmd ctx_cmd)
9542 struct lpfc_scsi_buf *lpfc_cmd;
9545 if (!(iocbq->iocb_flag & LPFC_IO_FCP))
9548 if (iocbq->vport != vport)
9551 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
9553 if (lpfc_cmd->pCmd == NULL)
9558 if ((lpfc_cmd->rdata->pnode) &&
9559 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
9560 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
9564 if ((lpfc_cmd->rdata->pnode) &&
9565 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
9572 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
9581 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
9582 * @vport: Pointer to virtual port.
9583 * @tgt_id: SCSI ID of the target.
9584 * @lun_id: LUN ID of the scsi device.
9585 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
9587 * This function returns number of FCP commands pending for the vport.
9588 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
9589 * commands pending on the vport associated with SCSI device specified
9590 * by tgt_id and lun_id parameters.
9591 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
9592 * commands pending on the vport associated with SCSI target specified
9593 * by tgt_id parameter.
9594 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
9595 * commands pending on the vport.
9596 * This function returns the number of iocbs which satisfy the filter.
9597 * This function is called without any lock held.
9600 lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
9601 lpfc_ctx_cmd ctx_cmd)
9603 struct lpfc_hba *phba = vport->phba;
9604 struct lpfc_iocbq *iocbq;
9607 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
9608 iocbq = phba->sli.iocbq_lookup[i];
9610 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
9619 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
9620 * @phba: Pointer to HBA context object
9621 * @cmdiocb: Pointer to command iocb object.
9622 * @rspiocb: Pointer to response iocb object.
9624 * This function is called when an aborted FCP iocb completes. This
9625 * function is called by the ring event handler with no lock held.
9626 * This function frees the iocb.
9629 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9630 struct lpfc_iocbq *rspiocb)
9632 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9633 "3096 ABORT_XRI_CN completing on xri x%x "
9634 "original iotag x%x, abort cmd iotag x%x "
9635 "status 0x%x, reason 0x%x\n",
9636 cmdiocb->iocb.un.acxri.abortContextTag,
9637 cmdiocb->iocb.un.acxri.abortIoTag,
9638 cmdiocb->iotag, rspiocb->iocb.ulpStatus,
9639 rspiocb->iocb.un.ulpWord[4]);
9640 lpfc_sli_release_iocbq(phba, cmdiocb);
9645 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
9646 * @vport: Pointer to virtual port.
9647 * @pring: Pointer to driver SLI ring object.
9648 * @tgt_id: SCSI ID of the target.
9649 * @lun_id: LUN ID of the scsi device.
9650 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
9652 * This function sends an abort command for every SCSI command
9653 * associated with the given virtual port pending on the ring
9654 * filtered by lpfc_sli_validate_fcp_iocb function.
9655 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
9656 * FCP iocbs associated with lun specified by tgt_id and lun_id
9658 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
9659 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
9660 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
9661 * FCP iocbs associated with virtual port.
9662 * This function returns number of iocbs it failed to abort.
9663 * This function is called with no locks held.
9666 lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
9667 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
9669 struct lpfc_hba *phba = vport->phba;
9670 struct lpfc_iocbq *iocbq;
9671 struct lpfc_iocbq *abtsiocb;
9673 int errcnt = 0, ret_val = 0;
9676 for (i = 1; i <= phba->sli.last_iotag; i++) {
9677 iocbq = phba->sli.iocbq_lookup[i];
9679 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
9683 /* issue ABTS for this IOCB based on iotag */
9684 abtsiocb = lpfc_sli_get_iocbq(phba);
9685 if (abtsiocb == NULL) {
9691 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
9692 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
9693 if (phba->sli_rev == LPFC_SLI_REV4)
9694 abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
9696 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
9697 abtsiocb->iocb.ulpLe = 1;
9698 abtsiocb->iocb.ulpClass = cmd->ulpClass;
9699 abtsiocb->vport = phba->pport;
9701 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
9702 abtsiocb->fcp_wqidx = iocbq->fcp_wqidx;
9703 if (iocbq->iocb_flag & LPFC_IO_FCP)
9704 abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
9706 if (lpfc_is_link_up(phba))
9707 abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
9709 abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
9711 /* Setup callback routine and issue the command. */
9712 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
9713 ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
9715 if (ret_val == IOCB_ERROR) {
9716 lpfc_sli_release_iocbq(phba, abtsiocb);
9726 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
9727 * @phba: Pointer to HBA context object.
9728 * @cmdiocbq: Pointer to command iocb.
9729 * @rspiocbq: Pointer to response iocb.
9731 * This function is the completion handler for iocbs issued using
9732 * lpfc_sli_issue_iocb_wait function. This function is called by the
9733 * ring event handler function without any lock held. This function
9734 * can be called from both worker thread context and interrupt
9735 * context. This function also can be called from other thread which
9736 * cleans up the SLI layer objects.
9737 * This function copy the contents of the response iocb to the
9738 * response iocb memory object provided by the caller of
9739 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
9740 * sleeps for the iocb completion.
9743 lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
9744 struct lpfc_iocbq *cmdiocbq,
9745 struct lpfc_iocbq *rspiocbq)
9747 wait_queue_head_t *pdone_q;
9748 unsigned long iflags;
9749 struct lpfc_scsi_buf *lpfc_cmd;
9751 spin_lock_irqsave(&phba->hbalock, iflags);
9752 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
9753 if (cmdiocbq->context2 && rspiocbq)
9754 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
9755 &rspiocbq->iocb, sizeof(IOCB_t));
9757 /* Set the exchange busy flag for task management commands */
9758 if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) &&
9759 !(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) {
9760 lpfc_cmd = container_of(cmdiocbq, struct lpfc_scsi_buf,
9762 lpfc_cmd->exch_busy = rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY;
9765 pdone_q = cmdiocbq->context_un.wait_queue;
9768 spin_unlock_irqrestore(&phba->hbalock, iflags);
9773 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
9774 * @phba: Pointer to HBA context object..
9775 * @piocbq: Pointer to command iocb.
9776 * @flag: Flag to test.
9778 * This routine grabs the hbalock and then test the iocb_flag to
9779 * see if the passed in flag is set.
9782 * 0 if flag is not set.
9785 lpfc_chk_iocb_flg(struct lpfc_hba *phba,
9786 struct lpfc_iocbq *piocbq, uint32_t flag)
9788 unsigned long iflags;
9791 spin_lock_irqsave(&phba->hbalock, iflags);
9792 ret = piocbq->iocb_flag & flag;
9793 spin_unlock_irqrestore(&phba->hbalock, iflags);
9799 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
9800 * @phba: Pointer to HBA context object..
9801 * @pring: Pointer to sli ring.
9802 * @piocb: Pointer to command iocb.
9803 * @prspiocbq: Pointer to response iocb.
9804 * @timeout: Timeout in number of seconds.
9806 * This function issues the iocb to firmware and waits for the
9807 * iocb to complete. If the iocb command is not
9808 * completed within timeout seconds, it returns IOCB_TIMEDOUT.
9809 * Caller should not free the iocb resources if this function
9810 * returns IOCB_TIMEDOUT.
9811 * The function waits for the iocb completion using an
9812 * non-interruptible wait.
9813 * This function will sleep while waiting for iocb completion.
9814 * So, this function should not be called from any context which
9815 * does not allow sleeping. Due to the same reason, this function
9816 * cannot be called with interrupt disabled.
9817 * This function assumes that the iocb completions occur while
9818 * this function sleep. So, this function cannot be called from
9819 * the thread which process iocb completion for this ring.
9820 * This function clears the iocb_flag of the iocb object before
9821 * issuing the iocb and the iocb completion handler sets this
9822 * flag and wakes this thread when the iocb completes.
9823 * The contents of the response iocb will be copied to prspiocbq
9824 * by the completion handler when the command completes.
9825 * This function returns IOCB_SUCCESS when success.
9826 * This function is called with no lock held.
9829 lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
9830 uint32_t ring_number,
9831 struct lpfc_iocbq *piocb,
9832 struct lpfc_iocbq *prspiocbq,
9835 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
9836 long timeleft, timeout_req = 0;
9837 int retval = IOCB_SUCCESS;
9839 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
9841 * If the caller has provided a response iocbq buffer, then context2
9842 * is NULL or its an error.
9845 if (piocb->context2)
9847 piocb->context2 = prspiocbq;
9850 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
9851 piocb->context_un.wait_queue = &done_q;
9852 piocb->iocb_flag &= ~LPFC_IO_WAKE;
9854 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
9855 if (lpfc_readl(phba->HCregaddr, &creg_val))
9857 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
9858 writel(creg_val, phba->HCregaddr);
9859 readl(phba->HCregaddr); /* flush */
9862 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb,
9864 if (retval == IOCB_SUCCESS) {
9865 timeout_req = timeout * HZ;
9866 timeleft = wait_event_timeout(done_q,
9867 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
9870 if (piocb->iocb_flag & LPFC_IO_WAKE) {
9871 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9872 "0331 IOCB wake signaled\n");
9873 } else if (timeleft == 0) {
9874 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9875 "0338 IOCB wait timeout error - no "
9876 "wake response Data x%x\n", timeout);
9877 retval = IOCB_TIMEDOUT;
9879 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9880 "0330 IOCB wake NOT set, "
9882 timeout, (timeleft / jiffies));
9883 retval = IOCB_TIMEDOUT;
9885 } else if (retval == IOCB_BUSY) {
9886 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9887 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
9888 phba->iocb_cnt, pring->txq_cnt, pring->txcmplq_cnt);
9891 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9892 "0332 IOCB wait issue failed, Data x%x\n",
9894 retval = IOCB_ERROR;
9897 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
9898 if (lpfc_readl(phba->HCregaddr, &creg_val))
9900 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
9901 writel(creg_val, phba->HCregaddr);
9902 readl(phba->HCregaddr); /* flush */
9906 piocb->context2 = NULL;
9908 piocb->context_un.wait_queue = NULL;
9909 piocb->iocb_cmpl = NULL;
9914 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
9915 * @phba: Pointer to HBA context object.
9916 * @pmboxq: Pointer to driver mailbox object.
9917 * @timeout: Timeout in number of seconds.
9919 * This function issues the mailbox to firmware and waits for the
9920 * mailbox command to complete. If the mailbox command is not
9921 * completed within timeout seconds, it returns MBX_TIMEOUT.
9922 * The function waits for the mailbox completion using an
9923 * interruptible wait. If the thread is woken up due to a
9924 * signal, MBX_TIMEOUT error is returned to the caller. Caller
9925 * should not free the mailbox resources, if this function returns
9927 * This function will sleep while waiting for mailbox completion.
9928 * So, this function should not be called from any context which
9929 * does not allow sleeping. Due to the same reason, this function
9930 * cannot be called with interrupt disabled.
9931 * This function assumes that the mailbox completion occurs while
9932 * this function sleep. So, this function cannot be called from
9933 * the worker thread which processes mailbox completion.
9934 * This function is called in the context of HBA management
9936 * This function returns MBX_SUCCESS when successful.
9937 * This function is called with no lock held.
9940 lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
9943 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
9947 /* The caller must leave context1 empty. */
9948 if (pmboxq->context1)
9949 return MBX_NOT_FINISHED;
9951 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
9952 /* setup wake call as IOCB callback */
9953 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
9954 /* setup context field to pass wait_queue pointer to wake function */
9955 pmboxq->context1 = &done_q;
9957 /* now issue the command */
9958 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
9959 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
9960 wait_event_interruptible_timeout(done_q,
9961 pmboxq->mbox_flag & LPFC_MBX_WAKE,
9964 spin_lock_irqsave(&phba->hbalock, flag);
9965 pmboxq->context1 = NULL;
9967 * if LPFC_MBX_WAKE flag is set the mailbox is completed
9968 * else do not free the resources.
9970 if (pmboxq->mbox_flag & LPFC_MBX_WAKE) {
9971 retval = MBX_SUCCESS;
9972 lpfc_sli4_swap_str(phba, pmboxq);
9974 retval = MBX_TIMEOUT;
9975 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
9977 spin_unlock_irqrestore(&phba->hbalock, flag);
9984 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
9985 * @phba: Pointer to HBA context.
9987 * This function is called to shutdown the driver's mailbox sub-system.
9988 * It first marks the mailbox sub-system is in a block state to prevent
9989 * the asynchronous mailbox command from issued off the pending mailbox
9990 * command queue. If the mailbox command sub-system shutdown is due to
9991 * HBA error conditions such as EEH or ERATT, this routine shall invoke
9992 * the mailbox sub-system flush routine to forcefully bring down the
9993 * mailbox sub-system. Otherwise, if it is due to normal condition (such
9994 * as with offline or HBA function reset), this routine will wait for the
9995 * outstanding mailbox command to complete before invoking the mailbox
9996 * sub-system flush routine to gracefully bring down mailbox sub-system.
9999 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba, int mbx_action)
10001 struct lpfc_sli *psli = &phba->sli;
10002 unsigned long timeout;
10004 if (mbx_action == LPFC_MBX_NO_WAIT) {
10005 /* delay 100ms for port state */
10007 lpfc_sli_mbox_sys_flush(phba);
10010 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
10012 spin_lock_irq(&phba->hbalock);
10013 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
10015 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
10016 /* Determine how long we might wait for the active mailbox
10017 * command to be gracefully completed by firmware.
10019 if (phba->sli.mbox_active)
10020 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
10021 phba->sli.mbox_active) *
10023 spin_unlock_irq(&phba->hbalock);
10025 while (phba->sli.mbox_active) {
10026 /* Check active mailbox complete status every 2ms */
10028 if (time_after(jiffies, timeout))
10029 /* Timeout, let the mailbox flush routine to
10030 * forcefully release active mailbox command
10035 spin_unlock_irq(&phba->hbalock);
10037 lpfc_sli_mbox_sys_flush(phba);
10041 * lpfc_sli_eratt_read - read sli-3 error attention events
10042 * @phba: Pointer to HBA context.
10044 * This function is called to read the SLI3 device error attention registers
10045 * for possible error attention events. The caller must hold the hostlock
10046 * with spin_lock_irq().
10048 * This function returns 1 when there is Error Attention in the Host Attention
10049 * Register and returns 0 otherwise.
10052 lpfc_sli_eratt_read(struct lpfc_hba *phba)
10056 /* Read chip Host Attention (HA) register */
10057 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10060 if (ha_copy & HA_ERATT) {
10061 /* Read host status register to retrieve error event */
10062 if (lpfc_sli_read_hs(phba))
10065 /* Check if there is a deferred error condition is active */
10066 if ((HS_FFER1 & phba->work_hs) &&
10067 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
10068 HS_FFER6 | HS_FFER7 | HS_FFER8) & phba->work_hs)) {
10069 phba->hba_flag |= DEFER_ERATT;
10070 /* Clear all interrupt enable conditions */
10071 writel(0, phba->HCregaddr);
10072 readl(phba->HCregaddr);
10075 /* Set the driver HA work bitmap */
10076 phba->work_ha |= HA_ERATT;
10077 /* Indicate polling handles this ERATT */
10078 phba->hba_flag |= HBA_ERATT_HANDLED;
10084 /* Set the driver HS work bitmap */
10085 phba->work_hs |= UNPLUG_ERR;
10086 /* Set the driver HA work bitmap */
10087 phba->work_ha |= HA_ERATT;
10088 /* Indicate polling handles this ERATT */
10089 phba->hba_flag |= HBA_ERATT_HANDLED;
10094 * lpfc_sli4_eratt_read - read sli-4 error attention events
10095 * @phba: Pointer to HBA context.
10097 * This function is called to read the SLI4 device error attention registers
10098 * for possible error attention events. The caller must hold the hostlock
10099 * with spin_lock_irq().
10101 * This function returns 1 when there is Error Attention in the Host Attention
10102 * Register and returns 0 otherwise.
10105 lpfc_sli4_eratt_read(struct lpfc_hba *phba)
10107 uint32_t uerr_sta_hi, uerr_sta_lo;
10108 uint32_t if_type, portsmphr;
10109 struct lpfc_register portstat_reg;
10112 * For now, use the SLI4 device internal unrecoverable error
10113 * registers for error attention. This can be changed later.
10115 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10117 case LPFC_SLI_INTF_IF_TYPE_0:
10118 if (lpfc_readl(phba->sli4_hba.u.if_type0.UERRLOregaddr,
10120 lpfc_readl(phba->sli4_hba.u.if_type0.UERRHIregaddr,
10122 phba->work_hs |= UNPLUG_ERR;
10123 phba->work_ha |= HA_ERATT;
10124 phba->hba_flag |= HBA_ERATT_HANDLED;
10127 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
10128 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
10129 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10130 "1423 HBA Unrecoverable error: "
10131 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
10132 "ue_mask_lo_reg=0x%x, "
10133 "ue_mask_hi_reg=0x%x\n",
10134 uerr_sta_lo, uerr_sta_hi,
10135 phba->sli4_hba.ue_mask_lo,
10136 phba->sli4_hba.ue_mask_hi);
10137 phba->work_status[0] = uerr_sta_lo;
10138 phba->work_status[1] = uerr_sta_hi;
10139 phba->work_ha |= HA_ERATT;
10140 phba->hba_flag |= HBA_ERATT_HANDLED;
10144 case LPFC_SLI_INTF_IF_TYPE_2:
10145 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
10146 &portstat_reg.word0) ||
10147 lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
10149 phba->work_hs |= UNPLUG_ERR;
10150 phba->work_ha |= HA_ERATT;
10151 phba->hba_flag |= HBA_ERATT_HANDLED;
10154 if (bf_get(lpfc_sliport_status_err, &portstat_reg)) {
10155 phba->work_status[0] =
10156 readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
10157 phba->work_status[1] =
10158 readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
10159 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10160 "2885 Port Status Event: "
10161 "port status reg 0x%x, "
10162 "port smphr reg 0x%x, "
10163 "error 1=0x%x, error 2=0x%x\n",
10164 portstat_reg.word0,
10166 phba->work_status[0],
10167 phba->work_status[1]);
10168 phba->work_ha |= HA_ERATT;
10169 phba->hba_flag |= HBA_ERATT_HANDLED;
10173 case LPFC_SLI_INTF_IF_TYPE_1:
10175 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10176 "2886 HBA Error Attention on unsupported "
10177 "if type %d.", if_type);
10185 * lpfc_sli_check_eratt - check error attention events
10186 * @phba: Pointer to HBA context.
10188 * This function is called from timer soft interrupt context to check HBA's
10189 * error attention register bit for error attention events.
10191 * This function returns 1 when there is Error Attention in the Host Attention
10192 * Register and returns 0 otherwise.
10195 lpfc_sli_check_eratt(struct lpfc_hba *phba)
10199 /* If somebody is waiting to handle an eratt, don't process it
10200 * here. The brdkill function will do this.
10202 if (phba->link_flag & LS_IGNORE_ERATT)
10205 /* Check if interrupt handler handles this ERATT */
10206 spin_lock_irq(&phba->hbalock);
10207 if (phba->hba_flag & HBA_ERATT_HANDLED) {
10208 /* Interrupt handler has handled ERATT */
10209 spin_unlock_irq(&phba->hbalock);
10214 * If there is deferred error attention, do not check for error
10217 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10218 spin_unlock_irq(&phba->hbalock);
10222 /* If PCI channel is offline, don't process it */
10223 if (unlikely(pci_channel_offline(phba->pcidev))) {
10224 spin_unlock_irq(&phba->hbalock);
10228 switch (phba->sli_rev) {
10229 case LPFC_SLI_REV2:
10230 case LPFC_SLI_REV3:
10231 /* Read chip Host Attention (HA) register */
10232 ha_copy = lpfc_sli_eratt_read(phba);
10234 case LPFC_SLI_REV4:
10235 /* Read device Uncoverable Error (UERR) registers */
10236 ha_copy = lpfc_sli4_eratt_read(phba);
10239 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10240 "0299 Invalid SLI revision (%d)\n",
10245 spin_unlock_irq(&phba->hbalock);
10251 * lpfc_intr_state_check - Check device state for interrupt handling
10252 * @phba: Pointer to HBA context.
10254 * This inline routine checks whether a device or its PCI slot is in a state
10255 * that the interrupt should be handled.
10257 * This function returns 0 if the device or the PCI slot is in a state that
10258 * interrupt should be handled, otherwise -EIO.
10261 lpfc_intr_state_check(struct lpfc_hba *phba)
10263 /* If the pci channel is offline, ignore all the interrupts */
10264 if (unlikely(pci_channel_offline(phba->pcidev)))
10267 /* Update device level interrupt statistics */
10268 phba->sli.slistat.sli_intr++;
10270 /* Ignore all interrupts during initialization. */
10271 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
10278 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
10279 * @irq: Interrupt number.
10280 * @dev_id: The device context pointer.
10282 * This function is directly called from the PCI layer as an interrupt
10283 * service routine when device with SLI-3 interface spec is enabled with
10284 * MSI-X multi-message interrupt mode and there are slow-path events in
10285 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
10286 * interrupt mode, this function is called as part of the device-level
10287 * interrupt handler. When the PCI slot is in error recovery or the HBA
10288 * is undergoing initialization, the interrupt handler will not process
10289 * the interrupt. The link attention and ELS ring attention events are
10290 * handled by the worker thread. The interrupt handler signals the worker
10291 * thread and returns for these events. This function is called without
10292 * any lock held. It gets the hbalock to access and update SLI data
10295 * This function returns IRQ_HANDLED when interrupt is handled else it
10296 * returns IRQ_NONE.
10299 lpfc_sli_sp_intr_handler(int irq, void *dev_id)
10301 struct lpfc_hba *phba;
10302 uint32_t ha_copy, hc_copy;
10303 uint32_t work_ha_copy;
10304 unsigned long status;
10305 unsigned long iflag;
10308 MAILBOX_t *mbox, *pmbox;
10309 struct lpfc_vport *vport;
10310 struct lpfc_nodelist *ndlp;
10311 struct lpfc_dmabuf *mp;
10316 * Get the driver's phba structure from the dev_id and
10317 * assume the HBA is not interrupting.
10319 phba = (struct lpfc_hba *)dev_id;
10321 if (unlikely(!phba))
10325 * Stuff needs to be attented to when this function is invoked as an
10326 * individual interrupt handler in MSI-X multi-message interrupt mode
10328 if (phba->intr_type == MSIX) {
10329 /* Check device state for handling interrupt */
10330 if (lpfc_intr_state_check(phba))
10332 /* Need to read HA REG for slow-path events */
10333 spin_lock_irqsave(&phba->hbalock, iflag);
10334 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10336 /* If somebody is waiting to handle an eratt don't process it
10337 * here. The brdkill function will do this.
10339 if (phba->link_flag & LS_IGNORE_ERATT)
10340 ha_copy &= ~HA_ERATT;
10341 /* Check the need for handling ERATT in interrupt handler */
10342 if (ha_copy & HA_ERATT) {
10343 if (phba->hba_flag & HBA_ERATT_HANDLED)
10344 /* ERATT polling has handled ERATT */
10345 ha_copy &= ~HA_ERATT;
10347 /* Indicate interrupt handler handles ERATT */
10348 phba->hba_flag |= HBA_ERATT_HANDLED;
10352 * If there is deferred error attention, do not check for any
10355 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10356 spin_unlock_irqrestore(&phba->hbalock, iflag);
10360 /* Clear up only attention source related to slow-path */
10361 if (lpfc_readl(phba->HCregaddr, &hc_copy))
10364 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
10365 HC_LAINT_ENA | HC_ERINT_ENA),
10367 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
10369 writel(hc_copy, phba->HCregaddr);
10370 readl(phba->HAregaddr); /* flush */
10371 spin_unlock_irqrestore(&phba->hbalock, iflag);
10373 ha_copy = phba->ha_copy;
10375 work_ha_copy = ha_copy & phba->work_ha_mask;
10377 if (work_ha_copy) {
10378 if (work_ha_copy & HA_LATT) {
10379 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
10381 * Turn off Link Attention interrupts
10382 * until CLEAR_LA done
10384 spin_lock_irqsave(&phba->hbalock, iflag);
10385 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
10386 if (lpfc_readl(phba->HCregaddr, &control))
10388 control &= ~HC_LAINT_ENA;
10389 writel(control, phba->HCregaddr);
10390 readl(phba->HCregaddr); /* flush */
10391 spin_unlock_irqrestore(&phba->hbalock, iflag);
10394 work_ha_copy &= ~HA_LATT;
10397 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
10399 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
10400 * the only slow ring.
10402 status = (work_ha_copy &
10403 (HA_RXMASK << (4*LPFC_ELS_RING)));
10404 status >>= (4*LPFC_ELS_RING);
10405 if (status & HA_RXMASK) {
10406 spin_lock_irqsave(&phba->hbalock, iflag);
10407 if (lpfc_readl(phba->HCregaddr, &control))
10410 lpfc_debugfs_slow_ring_trc(phba,
10411 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
10413 (uint32_t)phba->sli.slistat.sli_intr);
10415 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
10416 lpfc_debugfs_slow_ring_trc(phba,
10417 "ISR Disable ring:"
10418 "pwork:x%x hawork:x%x wait:x%x",
10419 phba->work_ha, work_ha_copy,
10420 (uint32_t)((unsigned long)
10421 &phba->work_waitq));
10424 ~(HC_R0INT_ENA << LPFC_ELS_RING);
10425 writel(control, phba->HCregaddr);
10426 readl(phba->HCregaddr); /* flush */
10429 lpfc_debugfs_slow_ring_trc(phba,
10430 "ISR slow ring: pwork:"
10431 "x%x hawork:x%x wait:x%x",
10432 phba->work_ha, work_ha_copy,
10433 (uint32_t)((unsigned long)
10434 &phba->work_waitq));
10436 spin_unlock_irqrestore(&phba->hbalock, iflag);
10439 spin_lock_irqsave(&phba->hbalock, iflag);
10440 if (work_ha_copy & HA_ERATT) {
10441 if (lpfc_sli_read_hs(phba))
10444 * Check if there is a deferred error condition
10447 if ((HS_FFER1 & phba->work_hs) &&
10448 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
10449 HS_FFER6 | HS_FFER7 | HS_FFER8) &
10451 phba->hba_flag |= DEFER_ERATT;
10452 /* Clear all interrupt enable conditions */
10453 writel(0, phba->HCregaddr);
10454 readl(phba->HCregaddr);
10458 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
10459 pmb = phba->sli.mbox_active;
10460 pmbox = &pmb->u.mb;
10462 vport = pmb->vport;
10464 /* First check out the status word */
10465 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
10466 if (pmbox->mbxOwner != OWN_HOST) {
10467 spin_unlock_irqrestore(&phba->hbalock, iflag);
10469 * Stray Mailbox Interrupt, mbxCommand <cmd>
10470 * mbxStatus <status>
10472 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
10474 "(%d):0304 Stray Mailbox "
10475 "Interrupt mbxCommand x%x "
10477 (vport ? vport->vpi : 0),
10480 /* clear mailbox attention bit */
10481 work_ha_copy &= ~HA_MBATT;
10483 phba->sli.mbox_active = NULL;
10484 spin_unlock_irqrestore(&phba->hbalock, iflag);
10485 phba->last_completion_time = jiffies;
10486 del_timer(&phba->sli.mbox_tmo);
10487 if (pmb->mbox_cmpl) {
10488 lpfc_sli_pcimem_bcopy(mbox, pmbox,
10490 if (pmb->out_ext_byte_len &&
10492 lpfc_sli_pcimem_bcopy(
10495 pmb->out_ext_byte_len);
10497 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
10498 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
10500 lpfc_debugfs_disc_trc(vport,
10501 LPFC_DISC_TRC_MBOX_VPORT,
10502 "MBOX dflt rpi: : "
10503 "status:x%x rpi:x%x",
10504 (uint32_t)pmbox->mbxStatus,
10505 pmbox->un.varWords[0], 0);
10507 if (!pmbox->mbxStatus) {
10508 mp = (struct lpfc_dmabuf *)
10510 ndlp = (struct lpfc_nodelist *)
10513 /* Reg_LOGIN of dflt RPI was
10514 * successful. new lets get
10515 * rid of the RPI using the
10516 * same mbox buffer.
10518 lpfc_unreg_login(phba,
10520 pmbox->un.varWords[0],
10523 lpfc_mbx_cmpl_dflt_rpi;
10524 pmb->context1 = mp;
10525 pmb->context2 = ndlp;
10526 pmb->vport = vport;
10527 rc = lpfc_sli_issue_mbox(phba,
10530 if (rc != MBX_BUSY)
10531 lpfc_printf_log(phba,
10533 LOG_MBOX | LOG_SLI,
10534 "0350 rc should have"
10535 "been MBX_BUSY\n");
10536 if (rc != MBX_NOT_FINISHED)
10537 goto send_current_mbox;
10541 &phba->pport->work_port_lock,
10543 phba->pport->work_port_events &=
10545 spin_unlock_irqrestore(
10546 &phba->pport->work_port_lock,
10548 lpfc_mbox_cmpl_put(phba, pmb);
10551 spin_unlock_irqrestore(&phba->hbalock, iflag);
10553 if ((work_ha_copy & HA_MBATT) &&
10554 (phba->sli.mbox_active == NULL)) {
10556 /* Process next mailbox command if there is one */
10558 rc = lpfc_sli_issue_mbox(phba, NULL,
10560 } while (rc == MBX_NOT_FINISHED);
10561 if (rc != MBX_SUCCESS)
10562 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
10563 LOG_SLI, "0349 rc should be "
10567 spin_lock_irqsave(&phba->hbalock, iflag);
10568 phba->work_ha |= work_ha_copy;
10569 spin_unlock_irqrestore(&phba->hbalock, iflag);
10570 lpfc_worker_wake_up(phba);
10572 return IRQ_HANDLED;
10574 spin_unlock_irqrestore(&phba->hbalock, iflag);
10575 return IRQ_HANDLED;
10577 } /* lpfc_sli_sp_intr_handler */
10580 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
10581 * @irq: Interrupt number.
10582 * @dev_id: The device context pointer.
10584 * This function is directly called from the PCI layer as an interrupt
10585 * service routine when device with SLI-3 interface spec is enabled with
10586 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
10587 * ring event in the HBA. However, when the device is enabled with either
10588 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
10589 * device-level interrupt handler. When the PCI slot is in error recovery
10590 * or the HBA is undergoing initialization, the interrupt handler will not
10591 * process the interrupt. The SCSI FCP fast-path ring event are handled in
10592 * the intrrupt context. This function is called without any lock held.
10593 * It gets the hbalock to access and update SLI data structures.
10595 * This function returns IRQ_HANDLED when interrupt is handled else it
10596 * returns IRQ_NONE.
10599 lpfc_sli_fp_intr_handler(int irq, void *dev_id)
10601 struct lpfc_hba *phba;
10603 unsigned long status;
10604 unsigned long iflag;
10606 /* Get the driver's phba structure from the dev_id and
10607 * assume the HBA is not interrupting.
10609 phba = (struct lpfc_hba *) dev_id;
10611 if (unlikely(!phba))
10615 * Stuff needs to be attented to when this function is invoked as an
10616 * individual interrupt handler in MSI-X multi-message interrupt mode
10618 if (phba->intr_type == MSIX) {
10619 /* Check device state for handling interrupt */
10620 if (lpfc_intr_state_check(phba))
10622 /* Need to read HA REG for FCP ring and other ring events */
10623 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10624 return IRQ_HANDLED;
10625 /* Clear up only attention source related to fast-path */
10626 spin_lock_irqsave(&phba->hbalock, iflag);
10628 * If there is deferred error attention, do not check for
10631 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10632 spin_unlock_irqrestore(&phba->hbalock, iflag);
10635 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
10637 readl(phba->HAregaddr); /* flush */
10638 spin_unlock_irqrestore(&phba->hbalock, iflag);
10640 ha_copy = phba->ha_copy;
10643 * Process all events on FCP ring. Take the optimized path for FCP IO.
10645 ha_copy &= ~(phba->work_ha_mask);
10647 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
10648 status >>= (4*LPFC_FCP_RING);
10649 if (status & HA_RXMASK)
10650 lpfc_sli_handle_fast_ring_event(phba,
10651 &phba->sli.ring[LPFC_FCP_RING],
10654 if (phba->cfg_multi_ring_support == 2) {
10656 * Process all events on extra ring. Take the optimized path
10657 * for extra ring IO.
10659 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
10660 status >>= (4*LPFC_EXTRA_RING);
10661 if (status & HA_RXMASK) {
10662 lpfc_sli_handle_fast_ring_event(phba,
10663 &phba->sli.ring[LPFC_EXTRA_RING],
10667 return IRQ_HANDLED;
10668 } /* lpfc_sli_fp_intr_handler */
10671 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
10672 * @irq: Interrupt number.
10673 * @dev_id: The device context pointer.
10675 * This function is the HBA device-level interrupt handler to device with
10676 * SLI-3 interface spec, called from the PCI layer when either MSI or
10677 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
10678 * requires driver attention. This function invokes the slow-path interrupt
10679 * attention handling function and fast-path interrupt attention handling
10680 * function in turn to process the relevant HBA attention events. This
10681 * function is called without any lock held. It gets the hbalock to access
10682 * and update SLI data structures.
10684 * This function returns IRQ_HANDLED when interrupt is handled, else it
10685 * returns IRQ_NONE.
10688 lpfc_sli_intr_handler(int irq, void *dev_id)
10690 struct lpfc_hba *phba;
10691 irqreturn_t sp_irq_rc, fp_irq_rc;
10692 unsigned long status1, status2;
10696 * Get the driver's phba structure from the dev_id and
10697 * assume the HBA is not interrupting.
10699 phba = (struct lpfc_hba *) dev_id;
10701 if (unlikely(!phba))
10704 /* Check device state for handling interrupt */
10705 if (lpfc_intr_state_check(phba))
10708 spin_lock(&phba->hbalock);
10709 if (lpfc_readl(phba->HAregaddr, &phba->ha_copy)) {
10710 spin_unlock(&phba->hbalock);
10711 return IRQ_HANDLED;
10714 if (unlikely(!phba->ha_copy)) {
10715 spin_unlock(&phba->hbalock);
10717 } else if (phba->ha_copy & HA_ERATT) {
10718 if (phba->hba_flag & HBA_ERATT_HANDLED)
10719 /* ERATT polling has handled ERATT */
10720 phba->ha_copy &= ~HA_ERATT;
10722 /* Indicate interrupt handler handles ERATT */
10723 phba->hba_flag |= HBA_ERATT_HANDLED;
10727 * If there is deferred error attention, do not check for any interrupt.
10729 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10730 spin_unlock(&phba->hbalock);
10734 /* Clear attention sources except link and error attentions */
10735 if (lpfc_readl(phba->HCregaddr, &hc_copy)) {
10736 spin_unlock(&phba->hbalock);
10737 return IRQ_HANDLED;
10739 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
10740 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
10742 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
10743 writel(hc_copy, phba->HCregaddr);
10744 readl(phba->HAregaddr); /* flush */
10745 spin_unlock(&phba->hbalock);
10748 * Invokes slow-path host attention interrupt handling as appropriate.
10751 /* status of events with mailbox and link attention */
10752 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
10754 /* status of events with ELS ring */
10755 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
10756 status2 >>= (4*LPFC_ELS_RING);
10758 if (status1 || (status2 & HA_RXMASK))
10759 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
10761 sp_irq_rc = IRQ_NONE;
10764 * Invoke fast-path host attention interrupt handling as appropriate.
10767 /* status of events with FCP ring */
10768 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
10769 status1 >>= (4*LPFC_FCP_RING);
10771 /* status of events with extra ring */
10772 if (phba->cfg_multi_ring_support == 2) {
10773 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
10774 status2 >>= (4*LPFC_EXTRA_RING);
10778 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
10779 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
10781 fp_irq_rc = IRQ_NONE;
10783 /* Return device-level interrupt handling status */
10784 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
10785 } /* lpfc_sli_intr_handler */
10788 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
10789 * @phba: pointer to lpfc hba data structure.
10791 * This routine is invoked by the worker thread to process all the pending
10792 * SLI4 FCP abort XRI events.
10794 void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba)
10796 struct lpfc_cq_event *cq_event;
10798 /* First, declare the fcp xri abort event has been handled */
10799 spin_lock_irq(&phba->hbalock);
10800 phba->hba_flag &= ~FCP_XRI_ABORT_EVENT;
10801 spin_unlock_irq(&phba->hbalock);
10802 /* Now, handle all the fcp xri abort events */
10803 while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) {
10804 /* Get the first event from the head of the event queue */
10805 spin_lock_irq(&phba->hbalock);
10806 list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
10807 cq_event, struct lpfc_cq_event, list);
10808 spin_unlock_irq(&phba->hbalock);
10809 /* Notify aborted XRI for FCP work queue */
10810 lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
10811 /* Free the event processed back to the free pool */
10812 lpfc_sli4_cq_event_release(phba, cq_event);
10817 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
10818 * @phba: pointer to lpfc hba data structure.
10820 * This routine is invoked by the worker thread to process all the pending
10821 * SLI4 els abort xri events.
10823 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
10825 struct lpfc_cq_event *cq_event;
10827 /* First, declare the els xri abort event has been handled */
10828 spin_lock_irq(&phba->hbalock);
10829 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
10830 spin_unlock_irq(&phba->hbalock);
10831 /* Now, handle all the els xri abort events */
10832 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
10833 /* Get the first event from the head of the event queue */
10834 spin_lock_irq(&phba->hbalock);
10835 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
10836 cq_event, struct lpfc_cq_event, list);
10837 spin_unlock_irq(&phba->hbalock);
10838 /* Notify aborted XRI for ELS work queue */
10839 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
10840 /* Free the event processed back to the free pool */
10841 lpfc_sli4_cq_event_release(phba, cq_event);
10846 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
10847 * @phba: pointer to lpfc hba data structure
10848 * @pIocbIn: pointer to the rspiocbq
10849 * @pIocbOut: pointer to the cmdiocbq
10850 * @wcqe: pointer to the complete wcqe
10852 * This routine transfers the fields of a command iocbq to a response iocbq
10853 * by copying all the IOCB fields from command iocbq and transferring the
10854 * completion status information from the complete wcqe.
10857 lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
10858 struct lpfc_iocbq *pIocbIn,
10859 struct lpfc_iocbq *pIocbOut,
10860 struct lpfc_wcqe_complete *wcqe)
10862 unsigned long iflags;
10864 size_t offset = offsetof(struct lpfc_iocbq, iocb);
10866 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
10867 sizeof(struct lpfc_iocbq) - offset);
10868 /* Map WCQE parameters into irspiocb parameters */
10869 status = bf_get(lpfc_wcqe_c_status, wcqe);
10870 pIocbIn->iocb.ulpStatus = (status & LPFC_IOCB_STATUS_MASK);
10871 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
10872 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
10873 pIocbIn->iocb.un.fcpi.fcpi_parm =
10874 pIocbOut->iocb.un.fcpi.fcpi_parm -
10875 wcqe->total_data_placed;
10877 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
10879 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
10880 pIocbIn->iocb.un.genreq64.bdl.bdeSize = wcqe->total_data_placed;
10883 /* Convert BG errors for completion status */
10884 if (status == CQE_STATUS_DI_ERROR) {
10885 pIocbIn->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
10887 if (bf_get(lpfc_wcqe_c_bg_edir, wcqe))
10888 pIocbIn->iocb.un.ulpWord[4] = IOERR_RX_DMA_FAILED;
10890 pIocbIn->iocb.un.ulpWord[4] = IOERR_TX_DMA_FAILED;
10892 pIocbIn->iocb.unsli3.sli3_bg.bgstat = 0;
10893 if (bf_get(lpfc_wcqe_c_bg_ge, wcqe)) /* Guard Check failed */
10894 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
10895 BGS_GUARD_ERR_MASK;
10896 if (bf_get(lpfc_wcqe_c_bg_ae, wcqe)) /* App Tag Check failed */
10897 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
10898 BGS_APPTAG_ERR_MASK;
10899 if (bf_get(lpfc_wcqe_c_bg_re, wcqe)) /* Ref Tag Check failed */
10900 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
10901 BGS_REFTAG_ERR_MASK;
10903 /* Check to see if there was any good data before the error */
10904 if (bf_get(lpfc_wcqe_c_bg_tdpv, wcqe)) {
10905 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
10906 BGS_HI_WATER_MARK_PRESENT_MASK;
10907 pIocbIn->iocb.unsli3.sli3_bg.bghm =
10908 wcqe->total_data_placed;
10912 * Set ALL the error bits to indicate we don't know what
10913 * type of error it is.
10915 if (!pIocbIn->iocb.unsli3.sli3_bg.bgstat)
10916 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
10917 (BGS_REFTAG_ERR_MASK | BGS_APPTAG_ERR_MASK |
10918 BGS_GUARD_ERR_MASK);
10921 /* Pick up HBA exchange busy condition */
10922 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
10923 spin_lock_irqsave(&phba->hbalock, iflags);
10924 pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY;
10925 spin_unlock_irqrestore(&phba->hbalock, iflags);
10930 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
10931 * @phba: Pointer to HBA context object.
10932 * @wcqe: Pointer to work-queue completion queue entry.
10934 * This routine handles an ELS work-queue completion event and construct
10935 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
10936 * discovery engine to handle.
10938 * Return: Pointer to the receive IOCBQ, NULL otherwise.
10940 static struct lpfc_iocbq *
10941 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
10942 struct lpfc_iocbq *irspiocbq)
10944 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
10945 struct lpfc_iocbq *cmdiocbq;
10946 struct lpfc_wcqe_complete *wcqe;
10947 unsigned long iflags;
10949 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
10950 spin_lock_irqsave(&phba->hbalock, iflags);
10951 pring->stats.iocb_event++;
10952 /* Look up the ELS command IOCB and create pseudo response IOCB */
10953 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
10954 bf_get(lpfc_wcqe_c_request_tag, wcqe));
10955 spin_unlock_irqrestore(&phba->hbalock, iflags);
10957 if (unlikely(!cmdiocbq)) {
10958 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
10959 "0386 ELS complete with no corresponding "
10960 "cmdiocb: iotag (%d)\n",
10961 bf_get(lpfc_wcqe_c_request_tag, wcqe));
10962 lpfc_sli_release_iocbq(phba, irspiocbq);
10966 /* Fake the irspiocbq and copy necessary response information */
10967 lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe);
10973 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
10974 * @phba: Pointer to HBA context object.
10975 * @cqe: Pointer to mailbox completion queue entry.
10977 * This routine process a mailbox completion queue entry with asynchrous
10980 * Return: true if work posted to worker thread, otherwise false.
10983 lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
10985 struct lpfc_cq_event *cq_event;
10986 unsigned long iflags;
10988 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10989 "0392 Async Event: word0:x%x, word1:x%x, "
10990 "word2:x%x, word3:x%x\n", mcqe->word0,
10991 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
10993 /* Allocate a new internal CQ_EVENT entry */
10994 cq_event = lpfc_sli4_cq_event_alloc(phba);
10996 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10997 "0394 Failed to allocate CQ_EVENT entry\n");
11001 /* Move the CQE into an asynchronous event entry */
11002 memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe));
11003 spin_lock_irqsave(&phba->hbalock, iflags);
11004 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
11005 /* Set the async event flag */
11006 phba->hba_flag |= ASYNC_EVENT;
11007 spin_unlock_irqrestore(&phba->hbalock, iflags);
11013 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
11014 * @phba: Pointer to HBA context object.
11015 * @cqe: Pointer to mailbox completion queue entry.
11017 * This routine process a mailbox completion queue entry with mailbox
11018 * completion event.
11020 * Return: true if work posted to worker thread, otherwise false.
11023 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
11025 uint32_t mcqe_status;
11026 MAILBOX_t *mbox, *pmbox;
11027 struct lpfc_mqe *mqe;
11028 struct lpfc_vport *vport;
11029 struct lpfc_nodelist *ndlp;
11030 struct lpfc_dmabuf *mp;
11031 unsigned long iflags;
11033 bool workposted = false;
11036 /* If not a mailbox complete MCQE, out by checking mailbox consume */
11037 if (!bf_get(lpfc_trailer_completed, mcqe))
11038 goto out_no_mqe_complete;
11040 /* Get the reference to the active mbox command */
11041 spin_lock_irqsave(&phba->hbalock, iflags);
11042 pmb = phba->sli.mbox_active;
11043 if (unlikely(!pmb)) {
11044 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
11045 "1832 No pending MBOX command to handle\n");
11046 spin_unlock_irqrestore(&phba->hbalock, iflags);
11047 goto out_no_mqe_complete;
11049 spin_unlock_irqrestore(&phba->hbalock, iflags);
11051 pmbox = (MAILBOX_t *)&pmb->u.mqe;
11053 vport = pmb->vport;
11055 /* Reset heartbeat timer */
11056 phba->last_completion_time = jiffies;
11057 del_timer(&phba->sli.mbox_tmo);
11059 /* Move mbox data to caller's mailbox region, do endian swapping */
11060 if (pmb->mbox_cmpl && mbox)
11061 lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
11064 * For mcqe errors, conditionally move a modified error code to
11065 * the mbox so that the error will not be missed.
11067 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
11068 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
11069 if (bf_get(lpfc_mqe_status, mqe) == MBX_SUCCESS)
11070 bf_set(lpfc_mqe_status, mqe,
11071 (LPFC_MBX_ERROR_RANGE | mcqe_status));
11073 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
11074 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
11075 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
11076 "MBOX dflt rpi: status:x%x rpi:x%x",
11078 pmbox->un.varWords[0], 0);
11079 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
11080 mp = (struct lpfc_dmabuf *)(pmb->context1);
11081 ndlp = (struct lpfc_nodelist *)pmb->context2;
11082 /* Reg_LOGIN of dflt RPI was successful. Now lets get
11083 * RID of the PPI using the same mbox buffer.
11085 lpfc_unreg_login(phba, vport->vpi,
11086 pmbox->un.varWords[0], pmb);
11087 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
11088 pmb->context1 = mp;
11089 pmb->context2 = ndlp;
11090 pmb->vport = vport;
11091 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
11092 if (rc != MBX_BUSY)
11093 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
11094 LOG_SLI, "0385 rc should "
11095 "have been MBX_BUSY\n");
11096 if (rc != MBX_NOT_FINISHED)
11097 goto send_current_mbox;
11100 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
11101 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
11102 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
11104 /* There is mailbox completion work to do */
11105 spin_lock_irqsave(&phba->hbalock, iflags);
11106 __lpfc_mbox_cmpl_put(phba, pmb);
11107 phba->work_ha |= HA_MBATT;
11108 spin_unlock_irqrestore(&phba->hbalock, iflags);
11112 spin_lock_irqsave(&phba->hbalock, iflags);
11113 /* Release the mailbox command posting token */
11114 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
11115 /* Setting active mailbox pointer need to be in sync to flag clear */
11116 phba->sli.mbox_active = NULL;
11117 spin_unlock_irqrestore(&phba->hbalock, iflags);
11118 /* Wake up worker thread to post the next pending mailbox command */
11119 lpfc_worker_wake_up(phba);
11120 out_no_mqe_complete:
11121 if (bf_get(lpfc_trailer_consumed, mcqe))
11122 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
11127 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
11128 * @phba: Pointer to HBA context object.
11129 * @cqe: Pointer to mailbox completion queue entry.
11131 * This routine process a mailbox completion queue entry, it invokes the
11132 * proper mailbox complete handling or asynchrous event handling routine
11133 * according to the MCQE's async bit.
11135 * Return: true if work posted to worker thread, otherwise false.
11138 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
11140 struct lpfc_mcqe mcqe;
11143 /* Copy the mailbox MCQE and convert endian order as needed */
11144 lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
11146 /* Invoke the proper event handling routine */
11147 if (!bf_get(lpfc_trailer_async, &mcqe))
11148 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
11150 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
11155 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
11156 * @phba: Pointer to HBA context object.
11157 * @wcqe: Pointer to work-queue completion queue entry.
11159 * This routine handles an ELS work-queue completion event.
11161 * Return: true if work posted to worker thread, otherwise false.
11164 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba,
11165 struct lpfc_wcqe_complete *wcqe)
11167 struct lpfc_iocbq *irspiocbq;
11168 unsigned long iflags;
11169 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_FCP_RING];
11171 /* Get an irspiocbq for later ELS response processing use */
11172 irspiocbq = lpfc_sli_get_iocbq(phba);
11174 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11175 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
11176 "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n",
11177 pring->txq_cnt, phba->iocb_cnt,
11178 phba->sli.ring[LPFC_FCP_RING].txcmplq_cnt,
11179 phba->sli.ring[LPFC_ELS_RING].txcmplq_cnt);
11183 /* Save off the slow-path queue event for work thread to process */
11184 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
11185 spin_lock_irqsave(&phba->hbalock, iflags);
11186 list_add_tail(&irspiocbq->cq_event.list,
11187 &phba->sli4_hba.sp_queue_event);
11188 phba->hba_flag |= HBA_SP_QUEUE_EVT;
11189 spin_unlock_irqrestore(&phba->hbalock, iflags);
11195 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
11196 * @phba: Pointer to HBA context object.
11197 * @wcqe: Pointer to work-queue completion queue entry.
11199 * This routine handles slow-path WQ entry comsumed event by invoking the
11200 * proper WQ release routine to the slow-path WQ.
11203 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
11204 struct lpfc_wcqe_release *wcqe)
11206 /* sanity check on queue memory */
11207 if (unlikely(!phba->sli4_hba.els_wq))
11209 /* Check for the slow-path ELS work queue */
11210 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
11211 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
11212 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
11214 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11215 "2579 Slow-path wqe consume event carries "
11216 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
11217 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
11218 phba->sli4_hba.els_wq->queue_id);
11222 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
11223 * @phba: Pointer to HBA context object.
11224 * @cq: Pointer to a WQ completion queue.
11225 * @wcqe: Pointer to work-queue completion queue entry.
11227 * This routine handles an XRI abort event.
11229 * Return: true if work posted to worker thread, otherwise false.
11232 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
11233 struct lpfc_queue *cq,
11234 struct sli4_wcqe_xri_aborted *wcqe)
11236 bool workposted = false;
11237 struct lpfc_cq_event *cq_event;
11238 unsigned long iflags;
11240 /* Allocate a new internal CQ_EVENT entry */
11241 cq_event = lpfc_sli4_cq_event_alloc(phba);
11243 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11244 "0602 Failed to allocate CQ_EVENT entry\n");
11248 /* Move the CQE into the proper xri abort event list */
11249 memcpy(&cq_event->cqe, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
11250 switch (cq->subtype) {
11252 spin_lock_irqsave(&phba->hbalock, iflags);
11253 list_add_tail(&cq_event->list,
11254 &phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
11255 /* Set the fcp xri abort event flag */
11256 phba->hba_flag |= FCP_XRI_ABORT_EVENT;
11257 spin_unlock_irqrestore(&phba->hbalock, iflags);
11261 spin_lock_irqsave(&phba->hbalock, iflags);
11262 list_add_tail(&cq_event->list,
11263 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
11264 /* Set the els xri abort event flag */
11265 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
11266 spin_unlock_irqrestore(&phba->hbalock, iflags);
11270 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11271 "0603 Invalid work queue CQE subtype (x%x)\n",
11273 workposted = false;
11280 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
11281 * @phba: Pointer to HBA context object.
11282 * @rcqe: Pointer to receive-queue completion queue entry.
11284 * This routine process a receive-queue completion queue entry.
11286 * Return: true if work posted to worker thread, otherwise false.
11289 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
11291 bool workposted = false;
11292 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
11293 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
11294 struct hbq_dmabuf *dma_buf;
11295 uint32_t status, rq_id;
11296 unsigned long iflags;
11298 /* sanity check on queue memory */
11299 if (unlikely(!hrq) || unlikely(!drq))
11302 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
11303 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
11305 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
11306 if (rq_id != hrq->queue_id)
11309 status = bf_get(lpfc_rcqe_status, rcqe);
11311 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
11312 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11313 "2537 Receive Frame Truncated!!\n");
11314 case FC_STATUS_RQ_SUCCESS:
11315 lpfc_sli4_rq_release(hrq, drq);
11316 spin_lock_irqsave(&phba->hbalock, iflags);
11317 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
11319 spin_unlock_irqrestore(&phba->hbalock, iflags);
11322 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
11323 /* save off the frame for the word thread to process */
11324 list_add_tail(&dma_buf->cq_event.list,
11325 &phba->sli4_hba.sp_queue_event);
11326 /* Frame received */
11327 phba->hba_flag |= HBA_SP_QUEUE_EVT;
11328 spin_unlock_irqrestore(&phba->hbalock, iflags);
11331 case FC_STATUS_INSUFF_BUF_NEED_BUF:
11332 case FC_STATUS_INSUFF_BUF_FRM_DISC:
11333 /* Post more buffers if possible */
11334 spin_lock_irqsave(&phba->hbalock, iflags);
11335 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
11336 spin_unlock_irqrestore(&phba->hbalock, iflags);
11345 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
11346 * @phba: Pointer to HBA context object.
11347 * @cq: Pointer to the completion queue.
11348 * @wcqe: Pointer to a completion queue entry.
11350 * This routine process a slow-path work-queue or receive queue completion queue
11353 * Return: true if work posted to worker thread, otherwise false.
11356 lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11357 struct lpfc_cqe *cqe)
11359 struct lpfc_cqe cqevt;
11360 bool workposted = false;
11362 /* Copy the work queue CQE and convert endian order if needed */
11363 lpfc_sli_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
11365 /* Check and process for different type of WCQE and dispatch */
11366 switch (bf_get(lpfc_cqe_code, &cqevt)) {
11367 case CQE_CODE_COMPL_WQE:
11368 /* Process the WQ/RQ complete event */
11369 phba->last_completion_time = jiffies;
11370 workposted = lpfc_sli4_sp_handle_els_wcqe(phba,
11371 (struct lpfc_wcqe_complete *)&cqevt);
11373 case CQE_CODE_RELEASE_WQE:
11374 /* Process the WQ release event */
11375 lpfc_sli4_sp_handle_rel_wcqe(phba,
11376 (struct lpfc_wcqe_release *)&cqevt);
11378 case CQE_CODE_XRI_ABORTED:
11379 /* Process the WQ XRI abort event */
11380 phba->last_completion_time = jiffies;
11381 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
11382 (struct sli4_wcqe_xri_aborted *)&cqevt);
11384 case CQE_CODE_RECEIVE:
11385 case CQE_CODE_RECEIVE_V1:
11386 /* Process the RQ event */
11387 phba->last_completion_time = jiffies;
11388 workposted = lpfc_sli4_sp_handle_rcqe(phba,
11389 (struct lpfc_rcqe *)&cqevt);
11392 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11393 "0388 Not a valid WCQE code: x%x\n",
11394 bf_get(lpfc_cqe_code, &cqevt));
11401 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
11402 * @phba: Pointer to HBA context object.
11403 * @eqe: Pointer to fast-path event queue entry.
11405 * This routine process a event queue entry from the slow-path event queue.
11406 * It will check the MajorCode and MinorCode to determine this is for a
11407 * completion event on a completion queue, if not, an error shall be logged
11408 * and just return. Otherwise, it will get to the corresponding completion
11409 * queue and process all the entries on that completion queue, rearm the
11410 * completion queue, and then return.
11414 lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe)
11416 struct lpfc_queue *cq = NULL, *childq, *speq;
11417 struct lpfc_cqe *cqe;
11418 bool workposted = false;
11422 if (bf_get_le32(lpfc_eqe_major_code, eqe) != 0) {
11423 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11424 "0359 Not a valid slow-path completion "
11425 "event: majorcode=x%x, minorcode=x%x\n",
11426 bf_get_le32(lpfc_eqe_major_code, eqe),
11427 bf_get_le32(lpfc_eqe_minor_code, eqe));
11431 /* Get the reference to the corresponding CQ */
11432 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
11434 /* Search for completion queue pointer matching this cqid */
11435 speq = phba->sli4_hba.sp_eq;
11436 /* sanity check on queue memory */
11437 if (unlikely(!speq))
11439 list_for_each_entry(childq, &speq->child_list, list) {
11440 if (childq->queue_id == cqid) {
11445 if (unlikely(!cq)) {
11446 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
11447 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11448 "0365 Slow-path CQ identifier "
11449 "(%d) does not exist\n", cqid);
11453 /* Process all the entries to the CQ */
11454 switch (cq->type) {
11456 while ((cqe = lpfc_sli4_cq_get(cq))) {
11457 workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe);
11458 if (!(++ecount % cq->entry_repost))
11459 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
11463 while ((cqe = lpfc_sli4_cq_get(cq))) {
11464 if (cq->subtype == LPFC_FCP)
11465 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq,
11468 workposted |= lpfc_sli4_sp_handle_cqe(phba, cq,
11470 if (!(++ecount % cq->entry_repost))
11471 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
11475 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11476 "0370 Invalid completion queue type (%d)\n",
11481 /* Catch the no cq entry condition, log an error */
11482 if (unlikely(ecount == 0))
11483 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11484 "0371 No entry from the CQ: identifier "
11485 "(x%x), type (%d)\n", cq->queue_id, cq->type);
11487 /* In any case, flash and re-arm the RCQ */
11488 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
11490 /* wake up worker thread if there are works to be done */
11492 lpfc_worker_wake_up(phba);
11496 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
11497 * @eqe: Pointer to fast-path completion queue entry.
11499 * This routine process a fast-path work queue completion entry from fast-path
11500 * event queue for FCP command response completion.
11503 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba,
11504 struct lpfc_wcqe_complete *wcqe)
11506 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_FCP_RING];
11507 struct lpfc_iocbq *cmdiocbq;
11508 struct lpfc_iocbq irspiocbq;
11509 unsigned long iflags;
11511 spin_lock_irqsave(&phba->hbalock, iflags);
11512 pring->stats.iocb_event++;
11513 spin_unlock_irqrestore(&phba->hbalock, iflags);
11515 /* Check for response status */
11516 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
11517 /* If resource errors reported from HBA, reduce queue
11518 * depth of the SCSI device.
11520 if ((bf_get(lpfc_wcqe_c_status, wcqe) ==
11521 IOSTAT_LOCAL_REJECT) &&
11522 (wcqe->parameter == IOERR_NO_RESOURCES)) {
11523 phba->lpfc_rampdown_queue_depth(phba);
11525 /* Log the error status */
11526 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11527 "0373 FCP complete error: status=x%x, "
11528 "hw_status=x%x, total_data_specified=%d, "
11529 "parameter=x%x, word3=x%x\n",
11530 bf_get(lpfc_wcqe_c_status, wcqe),
11531 bf_get(lpfc_wcqe_c_hw_status, wcqe),
11532 wcqe->total_data_placed, wcqe->parameter,
11536 /* Look up the FCP command IOCB and create pseudo response IOCB */
11537 spin_lock_irqsave(&phba->hbalock, iflags);
11538 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
11539 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11540 spin_unlock_irqrestore(&phba->hbalock, iflags);
11541 if (unlikely(!cmdiocbq)) {
11542 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11543 "0374 FCP complete with no corresponding "
11544 "cmdiocb: iotag (%d)\n",
11545 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11548 if (unlikely(!cmdiocbq->iocb_cmpl)) {
11549 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11550 "0375 FCP cmdiocb not callback function "
11552 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11556 /* Fake the irspiocb and copy necessary response information */
11557 lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
11559 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
11560 spin_lock_irqsave(&phba->hbalock, iflags);
11561 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
11562 spin_unlock_irqrestore(&phba->hbalock, iflags);
11565 /* Pass the cmd_iocb and the rsp state to the upper layer */
11566 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
11570 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
11571 * @phba: Pointer to HBA context object.
11572 * @cq: Pointer to completion queue.
11573 * @wcqe: Pointer to work-queue completion queue entry.
11575 * This routine handles an fast-path WQ entry comsumed event by invoking the
11576 * proper WQ release routine to the slow-path WQ.
11579 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11580 struct lpfc_wcqe_release *wcqe)
11582 struct lpfc_queue *childwq;
11583 bool wqid_matched = false;
11586 /* Check for fast-path FCP work queue release */
11587 fcp_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
11588 list_for_each_entry(childwq, &cq->child_list, list) {
11589 if (childwq->queue_id == fcp_wqid) {
11590 lpfc_sli4_wq_release(childwq,
11591 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
11592 wqid_matched = true;
11596 /* Report warning log message if no match found */
11597 if (wqid_matched != true)
11598 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11599 "2580 Fast-path wqe consume event carries "
11600 "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid);
11604 * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry
11605 * @cq: Pointer to the completion queue.
11606 * @eqe: Pointer to fast-path completion queue entry.
11608 * This routine process a fast-path work queue completion entry from fast-path
11609 * event queue for FCP command response completion.
11612 lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11613 struct lpfc_cqe *cqe)
11615 struct lpfc_wcqe_release wcqe;
11616 bool workposted = false;
11618 /* Copy the work queue CQE and convert endian order if needed */
11619 lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
11621 /* Check and process for different type of WCQE and dispatch */
11622 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
11623 case CQE_CODE_COMPL_WQE:
11624 /* Process the WQ complete event */
11625 phba->last_completion_time = jiffies;
11626 lpfc_sli4_fp_handle_fcp_wcqe(phba,
11627 (struct lpfc_wcqe_complete *)&wcqe);
11629 case CQE_CODE_RELEASE_WQE:
11630 /* Process the WQ release event */
11631 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
11632 (struct lpfc_wcqe_release *)&wcqe);
11634 case CQE_CODE_XRI_ABORTED:
11635 /* Process the WQ XRI abort event */
11636 phba->last_completion_time = jiffies;
11637 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
11638 (struct sli4_wcqe_xri_aborted *)&wcqe);
11641 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11642 "0144 Not a valid WCQE code: x%x\n",
11643 bf_get(lpfc_wcqe_c_code, &wcqe));
11650 * lpfc_sli4_fp_handle_eqe - Process a fast-path event queue entry
11651 * @phba: Pointer to HBA context object.
11652 * @eqe: Pointer to fast-path event queue entry.
11654 * This routine process a event queue entry from the fast-path event queue.
11655 * It will check the MajorCode and MinorCode to determine this is for a
11656 * completion event on a completion queue, if not, an error shall be logged
11657 * and just return. Otherwise, it will get to the corresponding completion
11658 * queue and process all the entries on the completion queue, rearm the
11659 * completion queue, and then return.
11662 lpfc_sli4_fp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
11663 uint32_t fcp_cqidx)
11665 struct lpfc_queue *cq;
11666 struct lpfc_cqe *cqe;
11667 bool workposted = false;
11671 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
11672 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11673 "0366 Not a valid fast-path completion "
11674 "event: majorcode=x%x, minorcode=x%x\n",
11675 bf_get_le32(lpfc_eqe_major_code, eqe),
11676 bf_get_le32(lpfc_eqe_minor_code, eqe));
11680 if (unlikely(!phba->sli4_hba.fcp_cq)) {
11681 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11682 "3146 Fast-path completion queues "
11683 "does not exist\n");
11686 cq = phba->sli4_hba.fcp_cq[fcp_cqidx];
11687 if (unlikely(!cq)) {
11688 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
11689 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11690 "0367 Fast-path completion queue "
11691 "(%d) does not exist\n", fcp_cqidx);
11695 /* Get the reference to the corresponding CQ */
11696 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
11697 if (unlikely(cqid != cq->queue_id)) {
11698 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11699 "0368 Miss-matched fast-path completion "
11700 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
11701 cqid, cq->queue_id);
11705 /* Process all the entries to the CQ */
11706 while ((cqe = lpfc_sli4_cq_get(cq))) {
11707 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe);
11708 if (!(++ecount % cq->entry_repost))
11709 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
11712 /* Catch the no cq entry condition */
11713 if (unlikely(ecount == 0))
11714 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11715 "0369 No entry from fast-path completion "
11716 "queue fcpcqid=%d\n", cq->queue_id);
11718 /* In any case, flash and re-arm the CQ */
11719 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
11721 /* wake up worker thread if there are works to be done */
11723 lpfc_worker_wake_up(phba);
11727 lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
11729 struct lpfc_eqe *eqe;
11731 /* walk all the EQ entries and drop on the floor */
11732 while ((eqe = lpfc_sli4_eq_get(eq)))
11735 /* Clear and re-arm the EQ */
11736 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
11740 * lpfc_sli4_sp_intr_handler - Slow-path interrupt handler to SLI-4 device
11741 * @irq: Interrupt number.
11742 * @dev_id: The device context pointer.
11744 * This function is directly called from the PCI layer as an interrupt
11745 * service routine when device with SLI-4 interface spec is enabled with
11746 * MSI-X multi-message interrupt mode and there are slow-path events in
11747 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
11748 * interrupt mode, this function is called as part of the device-level
11749 * interrupt handler. When the PCI slot is in error recovery or the HBA is
11750 * undergoing initialization, the interrupt handler will not process the
11751 * interrupt. The link attention and ELS ring attention events are handled
11752 * by the worker thread. The interrupt handler signals the worker thread
11753 * and returns for these events. This function is called without any lock
11754 * held. It gets the hbalock to access and update SLI data structures.
11756 * This function returns IRQ_HANDLED when interrupt is handled else it
11757 * returns IRQ_NONE.
11760 lpfc_sli4_sp_intr_handler(int irq, void *dev_id)
11762 struct lpfc_hba *phba;
11763 struct lpfc_queue *speq;
11764 struct lpfc_eqe *eqe;
11765 unsigned long iflag;
11769 * Get the driver's phba structure from the dev_id
11771 phba = (struct lpfc_hba *)dev_id;
11773 if (unlikely(!phba))
11776 /* Get to the EQ struct associated with this vector */
11777 speq = phba->sli4_hba.sp_eq;
11778 if (unlikely(!speq))
11781 /* Check device state for handling interrupt */
11782 if (unlikely(lpfc_intr_state_check(phba))) {
11783 /* Check again for link_state with lock held */
11784 spin_lock_irqsave(&phba->hbalock, iflag);
11785 if (phba->link_state < LPFC_LINK_DOWN)
11786 /* Flush, clear interrupt, and rearm the EQ */
11787 lpfc_sli4_eq_flush(phba, speq);
11788 spin_unlock_irqrestore(&phba->hbalock, iflag);
11793 * Process all the event on FCP slow-path EQ
11795 while ((eqe = lpfc_sli4_eq_get(speq))) {
11796 lpfc_sli4_sp_handle_eqe(phba, eqe);
11797 if (!(++ecount % speq->entry_repost))
11798 lpfc_sli4_eq_release(speq, LPFC_QUEUE_NOARM);
11801 /* Always clear and re-arm the slow-path EQ */
11802 lpfc_sli4_eq_release(speq, LPFC_QUEUE_REARM);
11804 /* Catch the no cq entry condition */
11805 if (unlikely(ecount == 0)) {
11806 if (phba->intr_type == MSIX)
11807 /* MSI-X treated interrupt served as no EQ share INT */
11808 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11809 "0357 MSI-X interrupt with no EQE\n");
11811 /* Non MSI-X treated on interrupt as EQ share INT */
11815 return IRQ_HANDLED;
11816 } /* lpfc_sli4_sp_intr_handler */
11819 * lpfc_sli4_fp_intr_handler - Fast-path interrupt handler to SLI-4 device
11820 * @irq: Interrupt number.
11821 * @dev_id: The device context pointer.
11823 * This function is directly called from the PCI layer as an interrupt
11824 * service routine when device with SLI-4 interface spec is enabled with
11825 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
11826 * ring event in the HBA. However, when the device is enabled with either
11827 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
11828 * device-level interrupt handler. When the PCI slot is in error recovery
11829 * or the HBA is undergoing initialization, the interrupt handler will not
11830 * process the interrupt. The SCSI FCP fast-path ring event are handled in
11831 * the intrrupt context. This function is called without any lock held.
11832 * It gets the hbalock to access and update SLI data structures. Note that,
11833 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
11834 * equal to that of FCP CQ index.
11836 * This function returns IRQ_HANDLED when interrupt is handled else it
11837 * returns IRQ_NONE.
11840 lpfc_sli4_fp_intr_handler(int irq, void *dev_id)
11842 struct lpfc_hba *phba;
11843 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
11844 struct lpfc_queue *fpeq;
11845 struct lpfc_eqe *eqe;
11846 unsigned long iflag;
11848 uint32_t fcp_eqidx;
11850 /* Get the driver's phba structure from the dev_id */
11851 fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id;
11852 phba = fcp_eq_hdl->phba;
11853 fcp_eqidx = fcp_eq_hdl->idx;
11855 if (unlikely(!phba))
11857 if (unlikely(!phba->sli4_hba.fp_eq))
11860 /* Get to the EQ struct associated with this vector */
11861 fpeq = phba->sli4_hba.fp_eq[fcp_eqidx];
11862 if (unlikely(!fpeq))
11865 /* Check device state for handling interrupt */
11866 if (unlikely(lpfc_intr_state_check(phba))) {
11867 /* Check again for link_state with lock held */
11868 spin_lock_irqsave(&phba->hbalock, iflag);
11869 if (phba->link_state < LPFC_LINK_DOWN)
11870 /* Flush, clear interrupt, and rearm the EQ */
11871 lpfc_sli4_eq_flush(phba, fpeq);
11872 spin_unlock_irqrestore(&phba->hbalock, iflag);
11877 * Process all the event on FCP fast-path EQ
11879 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
11880 lpfc_sli4_fp_handle_eqe(phba, eqe, fcp_eqidx);
11881 if (!(++ecount % fpeq->entry_repost))
11882 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM);
11885 /* Always clear and re-arm the fast-path EQ */
11886 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
11888 if (unlikely(ecount == 0)) {
11889 if (phba->intr_type == MSIX)
11890 /* MSI-X treated interrupt served as no EQ share INT */
11891 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11892 "0358 MSI-X interrupt with no EQE\n");
11894 /* Non MSI-X treated on interrupt as EQ share INT */
11898 return IRQ_HANDLED;
11899 } /* lpfc_sli4_fp_intr_handler */
11902 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
11903 * @irq: Interrupt number.
11904 * @dev_id: The device context pointer.
11906 * This function is the device-level interrupt handler to device with SLI-4
11907 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
11908 * interrupt mode is enabled and there is an event in the HBA which requires
11909 * driver attention. This function invokes the slow-path interrupt attention
11910 * handling function and fast-path interrupt attention handling function in
11911 * turn to process the relevant HBA attention events. This function is called
11912 * without any lock held. It gets the hbalock to access and update SLI data
11915 * This function returns IRQ_HANDLED when interrupt is handled, else it
11916 * returns IRQ_NONE.
11919 lpfc_sli4_intr_handler(int irq, void *dev_id)
11921 struct lpfc_hba *phba;
11922 irqreturn_t sp_irq_rc, fp_irq_rc;
11923 bool fp_handled = false;
11924 uint32_t fcp_eqidx;
11926 /* Get the driver's phba structure from the dev_id */
11927 phba = (struct lpfc_hba *)dev_id;
11929 if (unlikely(!phba))
11933 * Invokes slow-path host attention interrupt handling as appropriate.
11935 sp_irq_rc = lpfc_sli4_sp_intr_handler(irq, dev_id);
11938 * Invoke fast-path host attention interrupt handling as appropriate.
11940 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
11941 fp_irq_rc = lpfc_sli4_fp_intr_handler(irq,
11942 &phba->sli4_hba.fcp_eq_hdl[fcp_eqidx]);
11943 if (fp_irq_rc == IRQ_HANDLED)
11944 fp_handled |= true;
11947 return (fp_handled == true) ? IRQ_HANDLED : sp_irq_rc;
11948 } /* lpfc_sli4_intr_handler */
11951 * lpfc_sli4_queue_free - free a queue structure and associated memory
11952 * @queue: The queue structure to free.
11954 * This function frees a queue structure and the DMAable memory used for
11955 * the host resident queue. This function must be called after destroying the
11956 * queue on the HBA.
11959 lpfc_sli4_queue_free(struct lpfc_queue *queue)
11961 struct lpfc_dmabuf *dmabuf;
11966 while (!list_empty(&queue->page_list)) {
11967 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
11969 dma_free_coherent(&queue->phba->pcidev->dev, SLI4_PAGE_SIZE,
11970 dmabuf->virt, dmabuf->phys);
11978 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
11979 * @phba: The HBA that this queue is being created on.
11980 * @entry_size: The size of each queue entry for this queue.
11981 * @entry count: The number of entries that this queue will handle.
11983 * This function allocates a queue structure and the DMAable memory used for
11984 * the host resident queue. This function must be called before creating the
11985 * queue on the HBA.
11987 struct lpfc_queue *
11988 lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size,
11989 uint32_t entry_count)
11991 struct lpfc_queue *queue;
11992 struct lpfc_dmabuf *dmabuf;
11993 int x, total_qe_count;
11995 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
11997 if (!phba->sli4_hba.pc_sli4_params.supported)
11998 hw_page_size = SLI4_PAGE_SIZE;
12000 queue = kzalloc(sizeof(struct lpfc_queue) +
12001 (sizeof(union sli4_qe) * entry_count), GFP_KERNEL);
12004 queue->page_count = (ALIGN(entry_size * entry_count,
12005 hw_page_size))/hw_page_size;
12006 INIT_LIST_HEAD(&queue->list);
12007 INIT_LIST_HEAD(&queue->page_list);
12008 INIT_LIST_HEAD(&queue->child_list);
12009 for (x = 0, total_qe_count = 0; x < queue->page_count; x++) {
12010 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
12013 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
12014 hw_page_size, &dmabuf->phys,
12016 if (!dmabuf->virt) {
12020 memset(dmabuf->virt, 0, hw_page_size);
12021 dmabuf->buffer_tag = x;
12022 list_add_tail(&dmabuf->list, &queue->page_list);
12023 /* initialize queue's entry array */
12024 dma_pointer = dmabuf->virt;
12025 for (; total_qe_count < entry_count &&
12026 dma_pointer < (hw_page_size + dmabuf->virt);
12027 total_qe_count++, dma_pointer += entry_size) {
12028 queue->qe[total_qe_count].address = dma_pointer;
12031 queue->entry_size = entry_size;
12032 queue->entry_count = entry_count;
12035 * entry_repost is calculated based on the number of entries in the
12036 * queue. This works out except for RQs. If buffers are NOT initially
12037 * posted for every RQE, entry_repost should be adjusted accordingly.
12039 queue->entry_repost = (entry_count >> 3);
12040 if (queue->entry_repost < LPFC_QUEUE_MIN_REPOST)
12041 queue->entry_repost = LPFC_QUEUE_MIN_REPOST;
12042 queue->phba = phba;
12046 lpfc_sli4_queue_free(queue);
12051 * lpfc_modify_fcp_eq_delay - Modify Delay Multiplier on FCP EQs
12052 * @phba: HBA structure that indicates port to create a queue on.
12053 * @startq: The starting FCP EQ to modify
12055 * This function sends an MODIFY_EQ_DELAY mailbox command to the HBA.
12057 * The @phba struct is used to send mailbox command to HBA. The @startq
12058 * is used to get the starting FCP EQ to change.
12059 * This function is asynchronous and will wait for the mailbox
12060 * command to finish before continuing.
12062 * On success this function will return a zero. If unable to allocate enough
12063 * memory this function will return -ENOMEM. If the queue create mailbox command
12064 * fails this function will return -ENXIO.
12067 lpfc_modify_fcp_eq_delay(struct lpfc_hba *phba, uint16_t startq)
12069 struct lpfc_mbx_modify_eq_delay *eq_delay;
12070 LPFC_MBOXQ_t *mbox;
12071 struct lpfc_queue *eq;
12072 int cnt, rc, length, status = 0;
12073 uint32_t shdr_status, shdr_add_status;
12075 union lpfc_sli4_cfg_shdr *shdr;
12078 if (startq >= phba->cfg_fcp_eq_count)
12081 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12084 length = (sizeof(struct lpfc_mbx_modify_eq_delay) -
12085 sizeof(struct lpfc_sli4_cfg_mhdr));
12086 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12087 LPFC_MBOX_OPCODE_MODIFY_EQ_DELAY,
12088 length, LPFC_SLI4_MBX_EMBED);
12089 eq_delay = &mbox->u.mqe.un.eq_delay;
12091 /* Calculate delay multiper from maximum interrupt per second */
12092 dmult = LPFC_DMULT_CONST/phba->cfg_fcp_imax - 1;
12095 for (fcp_eqidx = startq; fcp_eqidx < phba->cfg_fcp_eq_count;
12097 eq = phba->sli4_hba.fp_eq[fcp_eqidx];
12100 eq_delay->u.request.eq[cnt].eq_id = eq->queue_id;
12101 eq_delay->u.request.eq[cnt].phase = 0;
12102 eq_delay->u.request.eq[cnt].delay_multi = dmult;
12104 if (cnt >= LPFC_MAX_EQ_DELAY)
12107 eq_delay->u.request.num_eq = cnt;
12109 mbox->vport = phba->pport;
12110 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12111 mbox->context1 = NULL;
12112 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12113 shdr = (union lpfc_sli4_cfg_shdr *) &eq_delay->header.cfg_shdr;
12114 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12115 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12116 if (shdr_status || shdr_add_status || rc) {
12117 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12118 "2512 MODIFY_EQ_DELAY mailbox failed with "
12119 "status x%x add_status x%x, mbx status x%x\n",
12120 shdr_status, shdr_add_status, rc);
12123 mempool_free(mbox, phba->mbox_mem_pool);
12128 * lpfc_eq_create - Create an Event Queue on the HBA
12129 * @phba: HBA structure that indicates port to create a queue on.
12130 * @eq: The queue structure to use to create the event queue.
12131 * @imax: The maximum interrupt per second limit.
12133 * This function creates an event queue, as detailed in @eq, on a port,
12134 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
12136 * The @phba struct is used to send mailbox command to HBA. The @eq 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. This
12139 * function will send the EQ_CREATE mailbox command to the HBA to setup the
12140 * event queue. This function is asynchronous and will wait for the mailbox
12141 * command to finish before continuing.
12143 * On success this function will return a zero. If unable to allocate enough
12144 * memory this function will return -ENOMEM. If the queue create mailbox command
12145 * fails this function will return -ENXIO.
12148 lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint16_t imax)
12150 struct lpfc_mbx_eq_create *eq_create;
12151 LPFC_MBOXQ_t *mbox;
12152 int rc, length, status = 0;
12153 struct lpfc_dmabuf *dmabuf;
12154 uint32_t shdr_status, shdr_add_status;
12155 union lpfc_sli4_cfg_shdr *shdr;
12157 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12159 /* sanity check on queue memory */
12162 if (!phba->sli4_hba.pc_sli4_params.supported)
12163 hw_page_size = SLI4_PAGE_SIZE;
12165 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12168 length = (sizeof(struct lpfc_mbx_eq_create) -
12169 sizeof(struct lpfc_sli4_cfg_mhdr));
12170 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12171 LPFC_MBOX_OPCODE_EQ_CREATE,
12172 length, LPFC_SLI4_MBX_EMBED);
12173 eq_create = &mbox->u.mqe.un.eq_create;
12174 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
12176 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
12178 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
12179 /* Calculate delay multiper from maximum interrupt per second */
12180 dmult = LPFC_DMULT_CONST/imax - 1;
12181 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
12183 switch (eq->entry_count) {
12185 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12186 "0360 Unsupported EQ count. (%d)\n",
12188 if (eq->entry_count < 256)
12190 /* otherwise default to smallest count (drop through) */
12192 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12196 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12200 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12204 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12208 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
12212 list_for_each_entry(dmabuf, &eq->page_list, list) {
12213 memset(dmabuf->virt, 0, hw_page_size);
12214 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
12215 putPaddrLow(dmabuf->phys);
12216 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
12217 putPaddrHigh(dmabuf->phys);
12219 mbox->vport = phba->pport;
12220 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12221 mbox->context1 = NULL;
12222 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12223 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
12224 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12225 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12226 if (shdr_status || shdr_add_status || rc) {
12227 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12228 "2500 EQ_CREATE mailbox failed with "
12229 "status x%x add_status x%x, mbx status x%x\n",
12230 shdr_status, shdr_add_status, rc);
12233 eq->type = LPFC_EQ;
12234 eq->subtype = LPFC_NONE;
12235 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
12236 if (eq->queue_id == 0xFFFF)
12238 eq->host_index = 0;
12241 mempool_free(mbox, phba->mbox_mem_pool);
12246 * lpfc_cq_create - Create a Completion Queue on the HBA
12247 * @phba: HBA structure that indicates port to create a queue on.
12248 * @cq: The queue structure to use to create the completion queue.
12249 * @eq: The event queue to bind this completion queue to.
12251 * This function creates a completion queue, as detailed in @wq, on a port,
12252 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
12254 * The @phba struct is used to send mailbox command to HBA. The @cq struct
12255 * is used to get the entry count and entry size that are necessary to
12256 * determine the number of pages to allocate and use for this queue. The @eq
12257 * is used to indicate which event queue to bind this completion queue to. This
12258 * function will send the CQ_CREATE mailbox command to the HBA to setup the
12259 * completion queue. This function is asynchronous and will wait for the mailbox
12260 * command to finish before continuing.
12262 * On success this function will return a zero. If unable to allocate enough
12263 * memory this function will return -ENOMEM. If the queue create mailbox command
12264 * fails this function will return -ENXIO.
12267 lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
12268 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
12270 struct lpfc_mbx_cq_create *cq_create;
12271 struct lpfc_dmabuf *dmabuf;
12272 LPFC_MBOXQ_t *mbox;
12273 int rc, length, status = 0;
12274 uint32_t shdr_status, shdr_add_status;
12275 union lpfc_sli4_cfg_shdr *shdr;
12276 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12278 /* sanity check on queue memory */
12281 if (!phba->sli4_hba.pc_sli4_params.supported)
12282 hw_page_size = SLI4_PAGE_SIZE;
12284 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12287 length = (sizeof(struct lpfc_mbx_cq_create) -
12288 sizeof(struct lpfc_sli4_cfg_mhdr));
12289 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12290 LPFC_MBOX_OPCODE_CQ_CREATE,
12291 length, LPFC_SLI4_MBX_EMBED);
12292 cq_create = &mbox->u.mqe.un.cq_create;
12293 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
12294 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
12296 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
12297 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
12298 bf_set(lpfc_mbox_hdr_version, &shdr->request,
12299 phba->sli4_hba.pc_sli4_params.cqv);
12300 if (phba->sli4_hba.pc_sli4_params.cqv == LPFC_Q_CREATE_VERSION_2) {
12301 /* FW only supports 1. Should be PAGE_SIZE/SLI4_PAGE_SIZE */
12302 bf_set(lpfc_mbx_cq_create_page_size, &cq_create->u.request, 1);
12303 bf_set(lpfc_cq_eq_id_2, &cq_create->u.request.context,
12306 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context,
12309 switch (cq->entry_count) {
12311 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12312 "0361 Unsupported CQ count. (%d)\n",
12314 if (cq->entry_count < 256) {
12318 /* otherwise default to smallest count (drop through) */
12320 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
12324 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
12328 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
12332 list_for_each_entry(dmabuf, &cq->page_list, list) {
12333 memset(dmabuf->virt, 0, hw_page_size);
12334 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
12335 putPaddrLow(dmabuf->phys);
12336 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
12337 putPaddrHigh(dmabuf->phys);
12339 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12341 /* The IOCTL status is embedded in the mailbox subheader. */
12342 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12343 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12344 if (shdr_status || shdr_add_status || rc) {
12345 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12346 "2501 CQ_CREATE mailbox failed with "
12347 "status x%x add_status x%x, mbx status x%x\n",
12348 shdr_status, shdr_add_status, rc);
12352 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
12353 if (cq->queue_id == 0xFFFF) {
12357 /* link the cq onto the parent eq child list */
12358 list_add_tail(&cq->list, &eq->child_list);
12359 /* Set up completion queue's type and subtype */
12361 cq->subtype = subtype;
12362 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
12363 cq->assoc_qid = eq->queue_id;
12364 cq->host_index = 0;
12368 mempool_free(mbox, phba->mbox_mem_pool);
12373 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
12374 * @phba: HBA structure that indicates port to create a queue on.
12375 * @mq: The queue structure to use to create the mailbox queue.
12376 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
12377 * @cq: The completion queue to associate with this cq.
12379 * This function provides failback (fb) functionality when the
12380 * mq_create_ext fails on older FW generations. It's purpose is identical
12381 * to mq_create_ext otherwise.
12383 * This routine cannot fail as all attributes were previously accessed and
12384 * initialized in mq_create_ext.
12387 lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq,
12388 LPFC_MBOXQ_t *mbox, struct lpfc_queue *cq)
12390 struct lpfc_mbx_mq_create *mq_create;
12391 struct lpfc_dmabuf *dmabuf;
12394 length = (sizeof(struct lpfc_mbx_mq_create) -
12395 sizeof(struct lpfc_sli4_cfg_mhdr));
12396 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12397 LPFC_MBOX_OPCODE_MQ_CREATE,
12398 length, LPFC_SLI4_MBX_EMBED);
12399 mq_create = &mbox->u.mqe.un.mq_create;
12400 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
12402 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
12404 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
12405 switch (mq->entry_count) {
12407 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
12408 LPFC_MQ_RING_SIZE_16);
12411 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
12412 LPFC_MQ_RING_SIZE_32);
12415 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
12416 LPFC_MQ_RING_SIZE_64);
12419 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
12420 LPFC_MQ_RING_SIZE_128);
12423 list_for_each_entry(dmabuf, &mq->page_list, list) {
12424 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
12425 putPaddrLow(dmabuf->phys);
12426 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
12427 putPaddrHigh(dmabuf->phys);
12432 * lpfc_mq_create - Create a mailbox Queue on the HBA
12433 * @phba: HBA structure that indicates port to create a queue on.
12434 * @mq: The queue structure to use to create the mailbox queue.
12435 * @cq: The completion queue to associate with this cq.
12436 * @subtype: The queue's subtype.
12438 * This function creates a mailbox queue, as detailed in @mq, on a port,
12439 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
12441 * The @phba struct is used to send mailbox command to HBA. The @cq struct
12442 * is used to get the entry count and entry size that are necessary to
12443 * determine the number of pages to allocate and use for this queue. This
12444 * function will send the MQ_CREATE mailbox command to the HBA to setup the
12445 * mailbox queue. This function is asynchronous and will wait for the mailbox
12446 * command to finish before continuing.
12448 * On success this function will return a zero. If unable to allocate enough
12449 * memory this function will return -ENOMEM. If the queue create mailbox command
12450 * fails this function will return -ENXIO.
12453 lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
12454 struct lpfc_queue *cq, uint32_t subtype)
12456 struct lpfc_mbx_mq_create *mq_create;
12457 struct lpfc_mbx_mq_create_ext *mq_create_ext;
12458 struct lpfc_dmabuf *dmabuf;
12459 LPFC_MBOXQ_t *mbox;
12460 int rc, length, status = 0;
12461 uint32_t shdr_status, shdr_add_status;
12462 union lpfc_sli4_cfg_shdr *shdr;
12463 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12465 /* sanity check on queue memory */
12468 if (!phba->sli4_hba.pc_sli4_params.supported)
12469 hw_page_size = SLI4_PAGE_SIZE;
12471 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12474 length = (sizeof(struct lpfc_mbx_mq_create_ext) -
12475 sizeof(struct lpfc_sli4_cfg_mhdr));
12476 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12477 LPFC_MBOX_OPCODE_MQ_CREATE_EXT,
12478 length, LPFC_SLI4_MBX_EMBED);
12480 mq_create_ext = &mbox->u.mqe.un.mq_create_ext;
12481 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr;
12482 bf_set(lpfc_mbx_mq_create_ext_num_pages,
12483 &mq_create_ext->u.request, mq->page_count);
12484 bf_set(lpfc_mbx_mq_create_ext_async_evt_link,
12485 &mq_create_ext->u.request, 1);
12486 bf_set(lpfc_mbx_mq_create_ext_async_evt_fip,
12487 &mq_create_ext->u.request, 1);
12488 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5,
12489 &mq_create_ext->u.request, 1);
12490 bf_set(lpfc_mbx_mq_create_ext_async_evt_fc,
12491 &mq_create_ext->u.request, 1);
12492 bf_set(lpfc_mbx_mq_create_ext_async_evt_sli,
12493 &mq_create_ext->u.request, 1);
12494 bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1);
12495 bf_set(lpfc_mbox_hdr_version, &shdr->request,
12496 phba->sli4_hba.pc_sli4_params.mqv);
12497 if (phba->sli4_hba.pc_sli4_params.mqv == LPFC_Q_CREATE_VERSION_1)
12498 bf_set(lpfc_mbx_mq_create_ext_cq_id, &mq_create_ext->u.request,
12501 bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context,
12503 switch (mq->entry_count) {
12505 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12506 "0362 Unsupported MQ count. (%d)\n",
12508 if (mq->entry_count < 16) {
12512 /* otherwise default to smallest count (drop through) */
12514 bf_set(lpfc_mq_context_ring_size,
12515 &mq_create_ext->u.request.context,
12516 LPFC_MQ_RING_SIZE_16);
12519 bf_set(lpfc_mq_context_ring_size,
12520 &mq_create_ext->u.request.context,
12521 LPFC_MQ_RING_SIZE_32);
12524 bf_set(lpfc_mq_context_ring_size,
12525 &mq_create_ext->u.request.context,
12526 LPFC_MQ_RING_SIZE_64);
12529 bf_set(lpfc_mq_context_ring_size,
12530 &mq_create_ext->u.request.context,
12531 LPFC_MQ_RING_SIZE_128);
12534 list_for_each_entry(dmabuf, &mq->page_list, list) {
12535 memset(dmabuf->virt, 0, hw_page_size);
12536 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_lo =
12537 putPaddrLow(dmabuf->phys);
12538 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_hi =
12539 putPaddrHigh(dmabuf->phys);
12541 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12542 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
12543 &mq_create_ext->u.response);
12544 if (rc != MBX_SUCCESS) {
12545 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12546 "2795 MQ_CREATE_EXT failed with "
12547 "status x%x. Failback to MQ_CREATE.\n",
12549 lpfc_mq_create_fb_init(phba, mq, mbox, cq);
12550 mq_create = &mbox->u.mqe.un.mq_create;
12551 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12552 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
12553 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
12554 &mq_create->u.response);
12557 /* The IOCTL status is embedded in the mailbox subheader. */
12558 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12559 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12560 if (shdr_status || shdr_add_status || rc) {
12561 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12562 "2502 MQ_CREATE mailbox failed with "
12563 "status x%x add_status x%x, mbx status x%x\n",
12564 shdr_status, shdr_add_status, rc);
12568 if (mq->queue_id == 0xFFFF) {
12572 mq->type = LPFC_MQ;
12573 mq->assoc_qid = cq->queue_id;
12574 mq->subtype = subtype;
12575 mq->host_index = 0;
12578 /* link the mq onto the parent cq child list */
12579 list_add_tail(&mq->list, &cq->child_list);
12581 mempool_free(mbox, phba->mbox_mem_pool);
12586 * lpfc_wq_create - Create a Work Queue on the HBA
12587 * @phba: HBA structure that indicates port to create a queue on.
12588 * @wq: The queue structure to use to create the work queue.
12589 * @cq: The completion queue to bind this work queue to.
12590 * @subtype: The subtype of the work queue indicating its functionality.
12592 * This function creates a work queue, as detailed in @wq, on a port, described
12593 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
12595 * The @phba struct is used to send mailbox command to HBA. The @wq struct
12596 * is used to get the entry count and entry size that are necessary to
12597 * determine the number of pages to allocate and use for this queue. The @cq
12598 * is used to indicate which completion queue to bind this work queue to. This
12599 * function will send the WQ_CREATE mailbox command to the HBA to setup the
12600 * work queue. This function is asynchronous and will wait for the mailbox
12601 * command to finish before continuing.
12603 * On success this function will return a zero. If unable to allocate enough
12604 * memory this function will return -ENOMEM. If the queue create mailbox command
12605 * fails this function will return -ENXIO.
12608 lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
12609 struct lpfc_queue *cq, uint32_t subtype)
12611 struct lpfc_mbx_wq_create *wq_create;
12612 struct lpfc_dmabuf *dmabuf;
12613 LPFC_MBOXQ_t *mbox;
12614 int rc, length, status = 0;
12615 uint32_t shdr_status, shdr_add_status;
12616 union lpfc_sli4_cfg_shdr *shdr;
12617 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12618 struct dma_address *page;
12620 /* sanity check on queue memory */
12623 if (!phba->sli4_hba.pc_sli4_params.supported)
12624 hw_page_size = SLI4_PAGE_SIZE;
12626 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12629 length = (sizeof(struct lpfc_mbx_wq_create) -
12630 sizeof(struct lpfc_sli4_cfg_mhdr));
12631 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
12632 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
12633 length, LPFC_SLI4_MBX_EMBED);
12634 wq_create = &mbox->u.mqe.un.wq_create;
12635 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
12636 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
12638 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
12640 bf_set(lpfc_mbox_hdr_version, &shdr->request,
12641 phba->sli4_hba.pc_sli4_params.wqv);
12642 if (phba->sli4_hba.pc_sli4_params.wqv == LPFC_Q_CREATE_VERSION_1) {
12643 bf_set(lpfc_mbx_wq_create_wqe_count, &wq_create->u.request_1,
12645 switch (wq->entry_size) {
12648 bf_set(lpfc_mbx_wq_create_wqe_size,
12649 &wq_create->u.request_1,
12650 LPFC_WQ_WQE_SIZE_64);
12653 bf_set(lpfc_mbx_wq_create_wqe_size,
12654 &wq_create->u.request_1,
12655 LPFC_WQ_WQE_SIZE_128);
12658 bf_set(lpfc_mbx_wq_create_page_size, &wq_create->u.request_1,
12659 (PAGE_SIZE/SLI4_PAGE_SIZE));
12660 page = wq_create->u.request_1.page;
12662 page = wq_create->u.request.page;
12664 list_for_each_entry(dmabuf, &wq->page_list, list) {
12665 memset(dmabuf->virt, 0, hw_page_size);
12666 page[dmabuf->buffer_tag].addr_lo = putPaddrLow(dmabuf->phys);
12667 page[dmabuf->buffer_tag].addr_hi = putPaddrHigh(dmabuf->phys);
12669 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12670 /* The IOCTL status is embedded in the mailbox subheader. */
12671 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12672 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12673 if (shdr_status || shdr_add_status || rc) {
12674 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12675 "2503 WQ_CREATE mailbox failed with "
12676 "status x%x add_status x%x, mbx status x%x\n",
12677 shdr_status, shdr_add_status, rc);
12681 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response);
12682 if (wq->queue_id == 0xFFFF) {
12686 wq->type = LPFC_WQ;
12687 wq->assoc_qid = cq->queue_id;
12688 wq->subtype = subtype;
12689 wq->host_index = 0;
12691 wq->entry_repost = LPFC_RELEASE_NOTIFICATION_INTERVAL;
12693 /* link the wq onto the parent cq child list */
12694 list_add_tail(&wq->list, &cq->child_list);
12696 mempool_free(mbox, phba->mbox_mem_pool);
12701 * lpfc_rq_adjust_repost - Adjust entry_repost for an RQ
12702 * @phba: HBA structure that indicates port to create a queue on.
12703 * @rq: The queue structure to use for the receive queue.
12704 * @qno: The associated HBQ number
12707 * For SLI4 we need to adjust the RQ repost value based on
12708 * the number of buffers that are initially posted to the RQ.
12711 lpfc_rq_adjust_repost(struct lpfc_hba *phba, struct lpfc_queue *rq, int qno)
12715 /* sanity check on queue memory */
12718 cnt = lpfc_hbq_defs[qno]->entry_count;
12720 /* Recalc repost for RQs based on buffers initially posted */
12722 if (cnt < LPFC_QUEUE_MIN_REPOST)
12723 cnt = LPFC_QUEUE_MIN_REPOST;
12725 rq->entry_repost = cnt;
12729 * lpfc_rq_create - Create a Receive Queue on the HBA
12730 * @phba: HBA structure that indicates port to create a queue on.
12731 * @hrq: The queue structure to use to create the header receive queue.
12732 * @drq: The queue structure to use to create the data receive queue.
12733 * @cq: The completion queue to bind this work queue to.
12735 * This function creates a receive buffer queue pair , as detailed in @hrq and
12736 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
12739 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
12740 * struct is used to get the entry count that is necessary to determine the
12741 * number of pages to use for this queue. The @cq is used to indicate which
12742 * completion queue to bind received buffers that are posted to these queues to.
12743 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
12744 * receive queue pair. This function is asynchronous and will wait for the
12745 * mailbox command to finish before continuing.
12747 * On success this function will return a zero. If unable to allocate enough
12748 * memory this function will return -ENOMEM. If the queue create mailbox command
12749 * fails this function will return -ENXIO.
12752 lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
12753 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
12755 struct lpfc_mbx_rq_create *rq_create;
12756 struct lpfc_dmabuf *dmabuf;
12757 LPFC_MBOXQ_t *mbox;
12758 int rc, length, status = 0;
12759 uint32_t shdr_status, shdr_add_status;
12760 union lpfc_sli4_cfg_shdr *shdr;
12761 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12763 /* sanity check on queue memory */
12764 if (!hrq || !drq || !cq)
12766 if (!phba->sli4_hba.pc_sli4_params.supported)
12767 hw_page_size = SLI4_PAGE_SIZE;
12769 if (hrq->entry_count != drq->entry_count)
12771 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12774 length = (sizeof(struct lpfc_mbx_rq_create) -
12775 sizeof(struct lpfc_sli4_cfg_mhdr));
12776 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
12777 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
12778 length, LPFC_SLI4_MBX_EMBED);
12779 rq_create = &mbox->u.mqe.un.rq_create;
12780 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
12781 bf_set(lpfc_mbox_hdr_version, &shdr->request,
12782 phba->sli4_hba.pc_sli4_params.rqv);
12783 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
12784 bf_set(lpfc_rq_context_rqe_count_1,
12785 &rq_create->u.request.context,
12787 rq_create->u.request.context.buffer_size = LPFC_HDR_BUF_SIZE;
12788 bf_set(lpfc_rq_context_rqe_size,
12789 &rq_create->u.request.context,
12791 bf_set(lpfc_rq_context_page_size,
12792 &rq_create->u.request.context,
12793 (PAGE_SIZE/SLI4_PAGE_SIZE));
12795 switch (hrq->entry_count) {
12797 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12798 "2535 Unsupported RQ count. (%d)\n",
12800 if (hrq->entry_count < 512) {
12804 /* otherwise default to smallest count (drop through) */
12806 bf_set(lpfc_rq_context_rqe_count,
12807 &rq_create->u.request.context,
12808 LPFC_RQ_RING_SIZE_512);
12811 bf_set(lpfc_rq_context_rqe_count,
12812 &rq_create->u.request.context,
12813 LPFC_RQ_RING_SIZE_1024);
12816 bf_set(lpfc_rq_context_rqe_count,
12817 &rq_create->u.request.context,
12818 LPFC_RQ_RING_SIZE_2048);
12821 bf_set(lpfc_rq_context_rqe_count,
12822 &rq_create->u.request.context,
12823 LPFC_RQ_RING_SIZE_4096);
12826 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
12827 LPFC_HDR_BUF_SIZE);
12829 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
12831 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
12833 list_for_each_entry(dmabuf, &hrq->page_list, list) {
12834 memset(dmabuf->virt, 0, hw_page_size);
12835 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
12836 putPaddrLow(dmabuf->phys);
12837 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
12838 putPaddrHigh(dmabuf->phys);
12840 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12841 /* The IOCTL status is embedded in the mailbox subheader. */
12842 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12843 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12844 if (shdr_status || shdr_add_status || rc) {
12845 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12846 "2504 RQ_CREATE mailbox failed with "
12847 "status x%x add_status x%x, mbx status x%x\n",
12848 shdr_status, shdr_add_status, rc);
12852 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
12853 if (hrq->queue_id == 0xFFFF) {
12857 hrq->type = LPFC_HRQ;
12858 hrq->assoc_qid = cq->queue_id;
12859 hrq->subtype = subtype;
12860 hrq->host_index = 0;
12861 hrq->hba_index = 0;
12863 /* now create the data queue */
12864 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
12865 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
12866 length, LPFC_SLI4_MBX_EMBED);
12867 bf_set(lpfc_mbox_hdr_version, &shdr->request,
12868 phba->sli4_hba.pc_sli4_params.rqv);
12869 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
12870 bf_set(lpfc_rq_context_rqe_count_1,
12871 &rq_create->u.request.context, hrq->entry_count);
12872 rq_create->u.request.context.buffer_size = LPFC_DATA_BUF_SIZE;
12873 bf_set(lpfc_rq_context_rqe_size, &rq_create->u.request.context,
12875 bf_set(lpfc_rq_context_page_size, &rq_create->u.request.context,
12876 (PAGE_SIZE/SLI4_PAGE_SIZE));
12878 switch (drq->entry_count) {
12880 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12881 "2536 Unsupported RQ count. (%d)\n",
12883 if (drq->entry_count < 512) {
12887 /* otherwise default to smallest count (drop through) */
12889 bf_set(lpfc_rq_context_rqe_count,
12890 &rq_create->u.request.context,
12891 LPFC_RQ_RING_SIZE_512);
12894 bf_set(lpfc_rq_context_rqe_count,
12895 &rq_create->u.request.context,
12896 LPFC_RQ_RING_SIZE_1024);
12899 bf_set(lpfc_rq_context_rqe_count,
12900 &rq_create->u.request.context,
12901 LPFC_RQ_RING_SIZE_2048);
12904 bf_set(lpfc_rq_context_rqe_count,
12905 &rq_create->u.request.context,
12906 LPFC_RQ_RING_SIZE_4096);
12909 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
12910 LPFC_DATA_BUF_SIZE);
12912 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
12914 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
12916 list_for_each_entry(dmabuf, &drq->page_list, list) {
12917 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
12918 putPaddrLow(dmabuf->phys);
12919 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
12920 putPaddrHigh(dmabuf->phys);
12922 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12923 /* The IOCTL status is embedded in the mailbox subheader. */
12924 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
12925 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12926 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12927 if (shdr_status || shdr_add_status || rc) {
12931 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
12932 if (drq->queue_id == 0xFFFF) {
12936 drq->type = LPFC_DRQ;
12937 drq->assoc_qid = cq->queue_id;
12938 drq->subtype = subtype;
12939 drq->host_index = 0;
12940 drq->hba_index = 0;
12942 /* link the header and data RQs onto the parent cq child list */
12943 list_add_tail(&hrq->list, &cq->child_list);
12944 list_add_tail(&drq->list, &cq->child_list);
12947 mempool_free(mbox, phba->mbox_mem_pool);
12952 * lpfc_eq_destroy - Destroy an event Queue on the HBA
12953 * @eq: The queue structure associated with the queue to destroy.
12955 * This function destroys a queue, as detailed in @eq by sending an mailbox
12956 * command, specific to the type of queue, to the HBA.
12958 * The @eq struct is used to get the queue ID of the queue to destroy.
12960 * On success this function will return a zero. If the queue destroy mailbox
12961 * command fails this function will return -ENXIO.
12964 lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
12966 LPFC_MBOXQ_t *mbox;
12967 int rc, length, status = 0;
12968 uint32_t shdr_status, shdr_add_status;
12969 union lpfc_sli4_cfg_shdr *shdr;
12971 /* sanity check on queue memory */
12974 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
12977 length = (sizeof(struct lpfc_mbx_eq_destroy) -
12978 sizeof(struct lpfc_sli4_cfg_mhdr));
12979 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12980 LPFC_MBOX_OPCODE_EQ_DESTROY,
12981 length, LPFC_SLI4_MBX_EMBED);
12982 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
12984 mbox->vport = eq->phba->pport;
12985 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12987 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
12988 /* The IOCTL status is embedded in the mailbox subheader. */
12989 shdr = (union lpfc_sli4_cfg_shdr *)
12990 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
12991 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12992 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12993 if (shdr_status || shdr_add_status || rc) {
12994 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12995 "2505 EQ_DESTROY mailbox failed with "
12996 "status x%x add_status x%x, mbx status x%x\n",
12997 shdr_status, shdr_add_status, rc);
13001 /* Remove eq from any list */
13002 list_del_init(&eq->list);
13003 mempool_free(mbox, eq->phba->mbox_mem_pool);
13008 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
13009 * @cq: The queue structure associated with the queue to destroy.
13011 * This function destroys a queue, as detailed in @cq by sending an mailbox
13012 * command, specific to the type of queue, to the HBA.
13014 * The @cq struct is used to get the queue ID of the queue to destroy.
13016 * On success this function will return a zero. If the queue destroy mailbox
13017 * command fails this function will return -ENXIO.
13020 lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
13022 LPFC_MBOXQ_t *mbox;
13023 int rc, length, status = 0;
13024 uint32_t shdr_status, shdr_add_status;
13025 union lpfc_sli4_cfg_shdr *shdr;
13027 /* sanity check on queue memory */
13030 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
13033 length = (sizeof(struct lpfc_mbx_cq_destroy) -
13034 sizeof(struct lpfc_sli4_cfg_mhdr));
13035 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13036 LPFC_MBOX_OPCODE_CQ_DESTROY,
13037 length, LPFC_SLI4_MBX_EMBED);
13038 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
13040 mbox->vport = cq->phba->pport;
13041 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13042 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
13043 /* The IOCTL status is embedded in the mailbox subheader. */
13044 shdr = (union lpfc_sli4_cfg_shdr *)
13045 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
13046 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13047 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13048 if (shdr_status || shdr_add_status || rc) {
13049 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13050 "2506 CQ_DESTROY mailbox failed with "
13051 "status x%x add_status x%x, mbx status x%x\n",
13052 shdr_status, shdr_add_status, rc);
13055 /* Remove cq from any list */
13056 list_del_init(&cq->list);
13057 mempool_free(mbox, cq->phba->mbox_mem_pool);
13062 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
13063 * @qm: The queue structure associated with the queue to destroy.
13065 * This function destroys a queue, as detailed in @mq by sending an mailbox
13066 * command, specific to the type of queue, to the HBA.
13068 * The @mq struct is used to get the queue ID of the queue to destroy.
13070 * On success this function will return a zero. If the queue destroy mailbox
13071 * command fails this function will return -ENXIO.
13074 lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
13076 LPFC_MBOXQ_t *mbox;
13077 int rc, length, status = 0;
13078 uint32_t shdr_status, shdr_add_status;
13079 union lpfc_sli4_cfg_shdr *shdr;
13081 /* sanity check on queue memory */
13084 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
13087 length = (sizeof(struct lpfc_mbx_mq_destroy) -
13088 sizeof(struct lpfc_sli4_cfg_mhdr));
13089 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13090 LPFC_MBOX_OPCODE_MQ_DESTROY,
13091 length, LPFC_SLI4_MBX_EMBED);
13092 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
13094 mbox->vport = mq->phba->pport;
13095 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13096 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
13097 /* The IOCTL status is embedded in the mailbox subheader. */
13098 shdr = (union lpfc_sli4_cfg_shdr *)
13099 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
13100 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13101 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13102 if (shdr_status || shdr_add_status || rc) {
13103 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13104 "2507 MQ_DESTROY mailbox failed with "
13105 "status x%x add_status x%x, mbx status x%x\n",
13106 shdr_status, shdr_add_status, rc);
13109 /* Remove mq from any list */
13110 list_del_init(&mq->list);
13111 mempool_free(mbox, mq->phba->mbox_mem_pool);
13116 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
13117 * @wq: The queue structure associated with the queue to destroy.
13119 * This function destroys a queue, as detailed in @wq by sending an mailbox
13120 * command, specific to the type of queue, to the HBA.
13122 * The @wq struct is used to get the queue ID of the queue to destroy.
13124 * On success this function will return a zero. If the queue destroy mailbox
13125 * command fails this function will return -ENXIO.
13128 lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
13130 LPFC_MBOXQ_t *mbox;
13131 int rc, length, status = 0;
13132 uint32_t shdr_status, shdr_add_status;
13133 union lpfc_sli4_cfg_shdr *shdr;
13135 /* sanity check on queue memory */
13138 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
13141 length = (sizeof(struct lpfc_mbx_wq_destroy) -
13142 sizeof(struct lpfc_sli4_cfg_mhdr));
13143 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13144 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
13145 length, LPFC_SLI4_MBX_EMBED);
13146 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
13148 mbox->vport = wq->phba->pport;
13149 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13150 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
13151 shdr = (union lpfc_sli4_cfg_shdr *)
13152 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
13153 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13154 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13155 if (shdr_status || shdr_add_status || rc) {
13156 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13157 "2508 WQ_DESTROY mailbox failed with "
13158 "status x%x add_status x%x, mbx status x%x\n",
13159 shdr_status, shdr_add_status, rc);
13162 /* Remove wq from any list */
13163 list_del_init(&wq->list);
13164 mempool_free(mbox, wq->phba->mbox_mem_pool);
13169 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
13170 * @rq: The queue structure associated with the queue to destroy.
13172 * This function destroys a queue, as detailed in @rq by sending an mailbox
13173 * command, specific to the type of queue, to the HBA.
13175 * The @rq struct is used to get the queue ID of the queue to destroy.
13177 * On success this function will return a zero. If the queue destroy mailbox
13178 * command fails this function will return -ENXIO.
13181 lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
13182 struct lpfc_queue *drq)
13184 LPFC_MBOXQ_t *mbox;
13185 int rc, length, status = 0;
13186 uint32_t shdr_status, shdr_add_status;
13187 union lpfc_sli4_cfg_shdr *shdr;
13189 /* sanity check on queue memory */
13192 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
13195 length = (sizeof(struct lpfc_mbx_rq_destroy) -
13196 sizeof(struct lpfc_sli4_cfg_mhdr));
13197 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13198 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
13199 length, LPFC_SLI4_MBX_EMBED);
13200 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
13202 mbox->vport = hrq->phba->pport;
13203 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13204 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
13205 /* The IOCTL status is embedded in the mailbox subheader. */
13206 shdr = (union lpfc_sli4_cfg_shdr *)
13207 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
13208 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13209 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13210 if (shdr_status || shdr_add_status || rc) {
13211 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13212 "2509 RQ_DESTROY mailbox failed with "
13213 "status x%x add_status x%x, mbx status x%x\n",
13214 shdr_status, shdr_add_status, rc);
13215 if (rc != MBX_TIMEOUT)
13216 mempool_free(mbox, hrq->phba->mbox_mem_pool);
13219 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
13221 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
13222 shdr = (union lpfc_sli4_cfg_shdr *)
13223 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
13224 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13225 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13226 if (shdr_status || shdr_add_status || rc) {
13227 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13228 "2510 RQ_DESTROY mailbox failed with "
13229 "status x%x add_status x%x, mbx status x%x\n",
13230 shdr_status, shdr_add_status, rc);
13233 list_del_init(&hrq->list);
13234 list_del_init(&drq->list);
13235 mempool_free(mbox, hrq->phba->mbox_mem_pool);
13240 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
13241 * @phba: The virtual port for which this call being executed.
13242 * @pdma_phys_addr0: Physical address of the 1st SGL page.
13243 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
13244 * @xritag: the xritag that ties this io to the SGL pages.
13246 * This routine will post the sgl pages for the IO that has the xritag
13247 * that is in the iocbq structure. The xritag is assigned during iocbq
13248 * creation and persists for as long as the driver is loaded.
13249 * if the caller has fewer than 256 scatter gather segments to map then
13250 * pdma_phys_addr1 should be 0.
13251 * If the caller needs to map more than 256 scatter gather segment then
13252 * pdma_phys_addr1 should be a valid physical address.
13253 * physical address for SGLs must be 64 byte aligned.
13254 * If you are going to map 2 SGL's then the first one must have 256 entries
13255 * the second sgl can have between 1 and 256 entries.
13259 * -ENXIO, -ENOMEM - Failure
13262 lpfc_sli4_post_sgl(struct lpfc_hba *phba,
13263 dma_addr_t pdma_phys_addr0,
13264 dma_addr_t pdma_phys_addr1,
13267 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
13268 LPFC_MBOXQ_t *mbox;
13270 uint32_t shdr_status, shdr_add_status;
13272 union lpfc_sli4_cfg_shdr *shdr;
13274 if (xritag == NO_XRI) {
13275 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13276 "0364 Invalid param:\n");
13280 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13284 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13285 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
13286 sizeof(struct lpfc_mbx_post_sgl_pages) -
13287 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
13289 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
13290 &mbox->u.mqe.un.post_sgl_pages;
13291 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
13292 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
13294 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
13295 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
13296 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
13297 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
13299 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
13300 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
13301 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
13302 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
13303 if (!phba->sli4_hba.intr_enable)
13304 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13306 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
13307 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
13309 /* The IOCTL status is embedded in the mailbox subheader. */
13310 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
13311 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13312 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13313 if (rc != MBX_TIMEOUT)
13314 mempool_free(mbox, phba->mbox_mem_pool);
13315 if (shdr_status || shdr_add_status || rc) {
13316 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13317 "2511 POST_SGL mailbox failed with "
13318 "status x%x add_status x%x, mbx status x%x\n",
13319 shdr_status, shdr_add_status, rc);
13326 * lpfc_sli4_alloc_xri - Get an available rpi in the device's range
13327 * @phba: pointer to lpfc hba data structure.
13329 * This routine is invoked to post rpi header templates to the
13330 * HBA consistent with the SLI-4 interface spec. This routine
13331 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
13332 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
13335 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
13336 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
13339 lpfc_sli4_alloc_xri(struct lpfc_hba *phba)
13344 * Fetch the next logical xri. Because this index is logical,
13345 * the driver starts at 0 each time.
13347 spin_lock_irq(&phba->hbalock);
13348 xri = find_next_zero_bit(phba->sli4_hba.xri_bmask,
13349 phba->sli4_hba.max_cfg_param.max_xri, 0);
13350 if (xri >= phba->sli4_hba.max_cfg_param.max_xri) {
13351 spin_unlock_irq(&phba->hbalock);
13354 set_bit(xri, phba->sli4_hba.xri_bmask);
13355 phba->sli4_hba.max_cfg_param.xri_used++;
13357 spin_unlock_irq(&phba->hbalock);
13362 * lpfc_sli4_free_xri - Release an xri for reuse.
13363 * @phba: pointer to lpfc hba data structure.
13365 * This routine is invoked to release an xri to the pool of
13366 * available rpis maintained by the driver.
13369 __lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
13371 if (test_and_clear_bit(xri, phba->sli4_hba.xri_bmask)) {
13372 phba->sli4_hba.max_cfg_param.xri_used--;
13377 * lpfc_sli4_free_xri - Release an xri for reuse.
13378 * @phba: pointer to lpfc hba data structure.
13380 * This routine is invoked to release an xri to the pool of
13381 * available rpis maintained by the driver.
13384 lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
13386 spin_lock_irq(&phba->hbalock);
13387 __lpfc_sli4_free_xri(phba, xri);
13388 spin_unlock_irq(&phba->hbalock);
13392 * lpfc_sli4_next_xritag - Get an xritag for the io
13393 * @phba: Pointer to HBA context object.
13395 * This function gets an xritag for the iocb. If there is no unused xritag
13396 * it will return 0xffff.
13397 * The function returns the allocated xritag if successful, else returns zero.
13398 * Zero is not a valid xritag.
13399 * The caller is not required to hold any lock.
13402 lpfc_sli4_next_xritag(struct lpfc_hba *phba)
13404 uint16_t xri_index;
13406 xri_index = lpfc_sli4_alloc_xri(phba);
13407 if (xri_index == NO_XRI)
13408 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13409 "2004 Failed to allocate XRI.last XRITAG is %d"
13410 " Max XRI is %d, Used XRI is %d\n",
13412 phba->sli4_hba.max_cfg_param.max_xri,
13413 phba->sli4_hba.max_cfg_param.xri_used);
13418 * lpfc_sli4_post_els_sgl_list - post a block of ELS sgls to the port.
13419 * @phba: pointer to lpfc hba data structure.
13420 * @post_sgl_list: pointer to els sgl entry list.
13421 * @count: number of els sgl entries on the list.
13423 * This routine is invoked to post a block of driver's sgl pages to the
13424 * HBA using non-embedded mailbox command. No Lock is held. This routine
13425 * is only called when the driver is loading and after all IO has been
13429 lpfc_sli4_post_els_sgl_list(struct lpfc_hba *phba,
13430 struct list_head *post_sgl_list,
13433 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
13434 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
13435 struct sgl_page_pairs *sgl_pg_pairs;
13437 LPFC_MBOXQ_t *mbox;
13438 uint32_t reqlen, alloclen, pg_pairs;
13440 uint16_t xritag_start = 0;
13442 uint32_t shdr_status, shdr_add_status;
13443 union lpfc_sli4_cfg_shdr *shdr;
13445 reqlen = phba->sli4_hba.els_xri_cnt * sizeof(struct sgl_page_pairs) +
13446 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
13447 if (reqlen > SLI4_PAGE_SIZE) {
13448 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13449 "2559 Block sgl registration required DMA "
13450 "size (%d) great than a page\n", reqlen);
13453 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13457 /* Allocate DMA memory and set up the non-embedded mailbox command */
13458 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13459 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
13460 LPFC_SLI4_MBX_NEMBED);
13462 if (alloclen < reqlen) {
13463 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13464 "0285 Allocated DMA memory size (%d) is "
13465 "less than the requested DMA memory "
13466 "size (%d)\n", alloclen, reqlen);
13467 lpfc_sli4_mbox_cmd_free(phba, mbox);
13470 /* Set up the SGL pages in the non-embedded DMA pages */
13471 viraddr = mbox->sge_array->addr[0];
13472 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
13473 sgl_pg_pairs = &sgl->sgl_pg_pairs;
13476 list_for_each_entry_safe(sglq_entry, sglq_next, post_sgl_list, list) {
13477 /* Set up the sge entry */
13478 sgl_pg_pairs->sgl_pg0_addr_lo =
13479 cpu_to_le32(putPaddrLow(sglq_entry->phys));
13480 sgl_pg_pairs->sgl_pg0_addr_hi =
13481 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
13482 sgl_pg_pairs->sgl_pg1_addr_lo =
13483 cpu_to_le32(putPaddrLow(0));
13484 sgl_pg_pairs->sgl_pg1_addr_hi =
13485 cpu_to_le32(putPaddrHigh(0));
13487 /* Keep the first xritag on the list */
13489 xritag_start = sglq_entry->sli4_xritag;
13494 /* Complete initialization and perform endian conversion. */
13495 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
13496 bf_set(lpfc_post_sgl_pages_xricnt, sgl, phba->sli4_hba.els_xri_cnt);
13497 sgl->word0 = cpu_to_le32(sgl->word0);
13498 if (!phba->sli4_hba.intr_enable)
13499 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13501 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
13502 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
13504 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
13505 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13506 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13507 if (rc != MBX_TIMEOUT)
13508 lpfc_sli4_mbox_cmd_free(phba, mbox);
13509 if (shdr_status || shdr_add_status || rc) {
13510 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13511 "2513 POST_SGL_BLOCK mailbox command failed "
13512 "status x%x add_status x%x mbx status x%x\n",
13513 shdr_status, shdr_add_status, rc);
13520 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
13521 * @phba: pointer to lpfc hba data structure.
13522 * @sblist: pointer to scsi buffer list.
13523 * @count: number of scsi buffers on the list.
13525 * This routine is invoked to post a block of @count scsi sgl pages from a
13526 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
13531 lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba,
13532 struct list_head *sblist,
13535 struct lpfc_scsi_buf *psb;
13536 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
13537 struct sgl_page_pairs *sgl_pg_pairs;
13539 LPFC_MBOXQ_t *mbox;
13540 uint32_t reqlen, alloclen, pg_pairs;
13542 uint16_t xritag_start = 0;
13544 uint32_t shdr_status, shdr_add_status;
13545 dma_addr_t pdma_phys_bpl1;
13546 union lpfc_sli4_cfg_shdr *shdr;
13548 /* Calculate the requested length of the dma memory */
13549 reqlen = count * sizeof(struct sgl_page_pairs) +
13550 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
13551 if (reqlen > SLI4_PAGE_SIZE) {
13552 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13553 "0217 Block sgl registration required DMA "
13554 "size (%d) great than a page\n", reqlen);
13557 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13559 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13560 "0283 Failed to allocate mbox cmd memory\n");
13564 /* Allocate DMA memory and set up the non-embedded mailbox command */
13565 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13566 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
13567 LPFC_SLI4_MBX_NEMBED);
13569 if (alloclen < reqlen) {
13570 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13571 "2561 Allocated DMA memory size (%d) is "
13572 "less than the requested DMA memory "
13573 "size (%d)\n", alloclen, reqlen);
13574 lpfc_sli4_mbox_cmd_free(phba, mbox);
13578 /* Get the first SGE entry from the non-embedded DMA memory */
13579 viraddr = mbox->sge_array->addr[0];
13581 /* Set up the SGL pages in the non-embedded DMA pages */
13582 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
13583 sgl_pg_pairs = &sgl->sgl_pg_pairs;
13586 list_for_each_entry(psb, sblist, list) {
13587 /* Set up the sge entry */
13588 sgl_pg_pairs->sgl_pg0_addr_lo =
13589 cpu_to_le32(putPaddrLow(psb->dma_phys_bpl));
13590 sgl_pg_pairs->sgl_pg0_addr_hi =
13591 cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl));
13592 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
13593 pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE;
13595 pdma_phys_bpl1 = 0;
13596 sgl_pg_pairs->sgl_pg1_addr_lo =
13597 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
13598 sgl_pg_pairs->sgl_pg1_addr_hi =
13599 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
13600 /* Keep the first xritag on the list */
13602 xritag_start = psb->cur_iocbq.sli4_xritag;
13606 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
13607 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
13608 /* Perform endian conversion if necessary */
13609 sgl->word0 = cpu_to_le32(sgl->word0);
13611 if (!phba->sli4_hba.intr_enable)
13612 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13614 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
13615 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
13617 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
13618 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13619 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13620 if (rc != MBX_TIMEOUT)
13621 lpfc_sli4_mbox_cmd_free(phba, mbox);
13622 if (shdr_status || shdr_add_status || rc) {
13623 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13624 "2564 POST_SGL_BLOCK mailbox command failed "
13625 "status x%x add_status x%x mbx status x%x\n",
13626 shdr_status, shdr_add_status, rc);
13633 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
13634 * @phba: pointer to lpfc_hba struct that the frame was received on
13635 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
13637 * This function checks the fields in the @fc_hdr to see if the FC frame is a
13638 * valid type of frame that the LPFC driver will handle. This function will
13639 * return a zero if the frame is a valid frame or a non zero value when the
13640 * frame does not pass the check.
13643 lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
13645 /* make rctl_names static to save stack space */
13646 static char *rctl_names[] = FC_RCTL_NAMES_INIT;
13647 char *type_names[] = FC_TYPE_NAMES_INIT;
13648 struct fc_vft_header *fc_vft_hdr;
13649 uint32_t *header = (uint32_t *) fc_hdr;
13651 switch (fc_hdr->fh_r_ctl) {
13652 case FC_RCTL_DD_UNCAT: /* uncategorized information */
13653 case FC_RCTL_DD_SOL_DATA: /* solicited data */
13654 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
13655 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
13656 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
13657 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
13658 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
13659 case FC_RCTL_DD_CMD_STATUS: /* command status */
13660 case FC_RCTL_ELS_REQ: /* extended link services request */
13661 case FC_RCTL_ELS_REP: /* extended link services reply */
13662 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
13663 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
13664 case FC_RCTL_BA_NOP: /* basic link service NOP */
13665 case FC_RCTL_BA_ABTS: /* basic link service abort */
13666 case FC_RCTL_BA_RMC: /* remove connection */
13667 case FC_RCTL_BA_ACC: /* basic accept */
13668 case FC_RCTL_BA_RJT: /* basic reject */
13669 case FC_RCTL_BA_PRMT:
13670 case FC_RCTL_ACK_1: /* acknowledge_1 */
13671 case FC_RCTL_ACK_0: /* acknowledge_0 */
13672 case FC_RCTL_P_RJT: /* port reject */
13673 case FC_RCTL_F_RJT: /* fabric reject */
13674 case FC_RCTL_P_BSY: /* port busy */
13675 case FC_RCTL_F_BSY: /* fabric busy to data frame */
13676 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
13677 case FC_RCTL_LCR: /* link credit reset */
13678 case FC_RCTL_END: /* end */
13680 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
13681 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
13682 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
13683 return lpfc_fc_frame_check(phba, fc_hdr);
13687 switch (fc_hdr->fh_type) {
13699 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
13700 "2538 Received frame rctl:%s type:%s "
13701 "Frame Data:%08x %08x %08x %08x %08x %08x\n",
13702 rctl_names[fc_hdr->fh_r_ctl],
13703 type_names[fc_hdr->fh_type],
13704 be32_to_cpu(header[0]), be32_to_cpu(header[1]),
13705 be32_to_cpu(header[2]), be32_to_cpu(header[3]),
13706 be32_to_cpu(header[4]), be32_to_cpu(header[5]));
13709 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
13710 "2539 Dropped frame rctl:%s type:%s\n",
13711 rctl_names[fc_hdr->fh_r_ctl],
13712 type_names[fc_hdr->fh_type]);
13717 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
13718 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
13720 * This function processes the FC header to retrieve the VFI from the VF
13721 * header, if one exists. This function will return the VFI if one exists
13722 * or 0 if no VSAN Header exists.
13725 lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
13727 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
13729 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
13731 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
13735 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
13736 * @phba: Pointer to the HBA structure to search for the vport on
13737 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
13738 * @fcfi: The FC Fabric ID that the frame came from
13740 * This function searches the @phba for a vport that matches the content of the
13741 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
13742 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
13743 * returns the matching vport pointer or NULL if unable to match frame to a
13746 static struct lpfc_vport *
13747 lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
13750 struct lpfc_vport **vports;
13751 struct lpfc_vport *vport = NULL;
13753 uint32_t did = (fc_hdr->fh_d_id[0] << 16 |
13754 fc_hdr->fh_d_id[1] << 8 |
13755 fc_hdr->fh_d_id[2]);
13757 if (did == Fabric_DID)
13758 return phba->pport;
13759 if ((phba->pport->fc_flag & FC_PT2PT) &&
13760 !(phba->link_state == LPFC_HBA_READY))
13761 return phba->pport;
13763 vports = lpfc_create_vport_work_array(phba);
13764 if (vports != NULL)
13765 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
13766 if (phba->fcf.fcfi == fcfi &&
13767 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
13768 vports[i]->fc_myDID == did) {
13773 lpfc_destroy_vport_work_array(phba, vports);
13778 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
13779 * @vport: The vport to work on.
13781 * This function updates the receive sequence time stamp for this vport. The
13782 * receive sequence time stamp indicates the time that the last frame of the
13783 * the sequence that has been idle for the longest amount of time was received.
13784 * the driver uses this time stamp to indicate if any received sequences have
13788 lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
13790 struct lpfc_dmabuf *h_buf;
13791 struct hbq_dmabuf *dmabuf = NULL;
13793 /* get the oldest sequence on the rcv list */
13794 h_buf = list_get_first(&vport->rcv_buffer_list,
13795 struct lpfc_dmabuf, list);
13798 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
13799 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
13803 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
13804 * @vport: The vport that the received sequences were sent to.
13806 * This function cleans up all outstanding received sequences. This is called
13807 * by the driver when a link event or user action invalidates all the received
13811 lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
13813 struct lpfc_dmabuf *h_buf, *hnext;
13814 struct lpfc_dmabuf *d_buf, *dnext;
13815 struct hbq_dmabuf *dmabuf = NULL;
13817 /* start with the oldest sequence on the rcv list */
13818 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
13819 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
13820 list_del_init(&dmabuf->hbuf.list);
13821 list_for_each_entry_safe(d_buf, dnext,
13822 &dmabuf->dbuf.list, list) {
13823 list_del_init(&d_buf->list);
13824 lpfc_in_buf_free(vport->phba, d_buf);
13826 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
13831 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
13832 * @vport: The vport that the received sequences were sent to.
13834 * This function determines whether any received sequences have timed out by
13835 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
13836 * indicates that there is at least one timed out sequence this routine will
13837 * go through the received sequences one at a time from most inactive to most
13838 * active to determine which ones need to be cleaned up. Once it has determined
13839 * that a sequence needs to be cleaned up it will simply free up the resources
13840 * without sending an abort.
13843 lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
13845 struct lpfc_dmabuf *h_buf, *hnext;
13846 struct lpfc_dmabuf *d_buf, *dnext;
13847 struct hbq_dmabuf *dmabuf = NULL;
13848 unsigned long timeout;
13849 int abort_count = 0;
13851 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
13852 vport->rcv_buffer_time_stamp);
13853 if (list_empty(&vport->rcv_buffer_list) ||
13854 time_before(jiffies, timeout))
13856 /* start with the oldest sequence on the rcv list */
13857 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
13858 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
13859 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
13860 dmabuf->time_stamp);
13861 if (time_before(jiffies, timeout))
13864 list_del_init(&dmabuf->hbuf.list);
13865 list_for_each_entry_safe(d_buf, dnext,
13866 &dmabuf->dbuf.list, list) {
13867 list_del_init(&d_buf->list);
13868 lpfc_in_buf_free(vport->phba, d_buf);
13870 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
13873 lpfc_update_rcv_time_stamp(vport);
13877 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
13878 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
13880 * This function searches through the existing incomplete sequences that have
13881 * been sent to this @vport. If the frame matches one of the incomplete
13882 * sequences then the dbuf in the @dmabuf is added to the list of frames that
13883 * make up that sequence. If no sequence is found that matches this frame then
13884 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
13885 * This function returns a pointer to the first dmabuf in the sequence list that
13886 * the frame was linked to.
13888 static struct hbq_dmabuf *
13889 lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
13891 struct fc_frame_header *new_hdr;
13892 struct fc_frame_header *temp_hdr;
13893 struct lpfc_dmabuf *d_buf;
13894 struct lpfc_dmabuf *h_buf;
13895 struct hbq_dmabuf *seq_dmabuf = NULL;
13896 struct hbq_dmabuf *temp_dmabuf = NULL;
13898 INIT_LIST_HEAD(&dmabuf->dbuf.list);
13899 dmabuf->time_stamp = jiffies;
13900 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
13901 /* Use the hdr_buf to find the sequence that this frame belongs to */
13902 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
13903 temp_hdr = (struct fc_frame_header *)h_buf->virt;
13904 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
13905 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
13906 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
13908 /* found a pending sequence that matches this frame */
13909 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
13914 * This indicates first frame received for this sequence.
13915 * Queue the buffer on the vport's rcv_buffer_list.
13917 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
13918 lpfc_update_rcv_time_stamp(vport);
13921 temp_hdr = seq_dmabuf->hbuf.virt;
13922 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
13923 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
13924 list_del_init(&seq_dmabuf->hbuf.list);
13925 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
13926 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
13927 lpfc_update_rcv_time_stamp(vport);
13930 /* move this sequence to the tail to indicate a young sequence */
13931 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
13932 seq_dmabuf->time_stamp = jiffies;
13933 lpfc_update_rcv_time_stamp(vport);
13934 if (list_empty(&seq_dmabuf->dbuf.list)) {
13935 temp_hdr = dmabuf->hbuf.virt;
13936 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
13939 /* find the correct place in the sequence to insert this frame */
13940 list_for_each_entry_reverse(d_buf, &seq_dmabuf->dbuf.list, list) {
13941 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
13942 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
13944 * If the frame's sequence count is greater than the frame on
13945 * the list then insert the frame right after this frame
13947 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
13948 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
13949 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
13957 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
13958 * @vport: pointer to a vitural port
13959 * @dmabuf: pointer to a dmabuf that describes the FC sequence
13961 * This function tries to abort from the partially assembed sequence, described
13962 * by the information from basic abbort @dmabuf. It checks to see whether such
13963 * partially assembled sequence held by the driver. If so, it shall free up all
13964 * the frames from the partially assembled sequence.
13967 * true -- if there is matching partially assembled sequence present and all
13968 * the frames freed with the sequence;
13969 * false -- if there is no matching partially assembled sequence present so
13970 * nothing got aborted in the lower layer driver
13973 lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
13974 struct hbq_dmabuf *dmabuf)
13976 struct fc_frame_header *new_hdr;
13977 struct fc_frame_header *temp_hdr;
13978 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
13979 struct hbq_dmabuf *seq_dmabuf = NULL;
13981 /* Use the hdr_buf to find the sequence that matches this frame */
13982 INIT_LIST_HEAD(&dmabuf->dbuf.list);
13983 INIT_LIST_HEAD(&dmabuf->hbuf.list);
13984 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
13985 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
13986 temp_hdr = (struct fc_frame_header *)h_buf->virt;
13987 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
13988 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
13989 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
13991 /* found a pending sequence that matches this frame */
13992 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
13996 /* Free up all the frames from the partially assembled sequence */
13998 list_for_each_entry_safe(d_buf, n_buf,
13999 &seq_dmabuf->dbuf.list, list) {
14000 list_del_init(&d_buf->list);
14001 lpfc_in_buf_free(vport->phba, d_buf);
14009 * lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler
14010 * @phba: Pointer to HBA context object.
14011 * @cmd_iocbq: pointer to the command iocbq structure.
14012 * @rsp_iocbq: pointer to the response iocbq structure.
14014 * This function handles the sequence abort response iocb command complete
14015 * event. It properly releases the memory allocated to the sequence abort
14019 lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba *phba,
14020 struct lpfc_iocbq *cmd_iocbq,
14021 struct lpfc_iocbq *rsp_iocbq)
14024 lpfc_sli_release_iocbq(phba, cmd_iocbq);
14026 /* Failure means BLS ABORT RSP did not get delivered to remote node*/
14027 if (rsp_iocbq && rsp_iocbq->iocb.ulpStatus)
14028 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14029 "3154 BLS ABORT RSP failed, data: x%x/x%x\n",
14030 rsp_iocbq->iocb.ulpStatus,
14031 rsp_iocbq->iocb.un.ulpWord[4]);
14035 * lpfc_sli4_xri_inrange - check xri is in range of xris owned by driver.
14036 * @phba: Pointer to HBA context object.
14037 * @xri: xri id in transaction.
14039 * This function validates the xri maps to the known range of XRIs allocated an
14040 * used by the driver.
14043 lpfc_sli4_xri_inrange(struct lpfc_hba *phba,
14048 for (i = 0; i < phba->sli4_hba.max_cfg_param.max_xri; i++) {
14049 if (xri == phba->sli4_hba.xri_ids[i])
14056 * lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort
14057 * @phba: Pointer to HBA context object.
14058 * @fc_hdr: pointer to a FC frame header.
14060 * This function sends a basic response to a previous unsol sequence abort
14061 * event after aborting the sequence handling.
14064 lpfc_sli4_seq_abort_rsp(struct lpfc_hba *phba,
14065 struct fc_frame_header *fc_hdr)
14067 struct lpfc_iocbq *ctiocb = NULL;
14068 struct lpfc_nodelist *ndlp;
14069 uint16_t oxid, rxid, xri, lxri;
14070 uint32_t sid, fctl;
14074 if (!lpfc_is_link_up(phba))
14077 sid = sli4_sid_from_fc_hdr(fc_hdr);
14078 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
14079 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
14081 ndlp = lpfc_findnode_did(phba->pport, sid);
14083 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
14084 "1268 Find ndlp returned NULL for oxid:x%x "
14085 "SID:x%x\n", oxid, sid);
14089 /* Allocate buffer for rsp iocb */
14090 ctiocb = lpfc_sli_get_iocbq(phba);
14094 /* Extract the F_CTL field from FC_HDR */
14095 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
14097 icmd = &ctiocb->iocb;
14098 icmd->un.xseq64.bdl.bdeSize = 0;
14099 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
14100 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
14101 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
14102 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
14104 /* Fill in the rest of iocb fields */
14105 icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
14106 icmd->ulpBdeCount = 0;
14108 icmd->ulpClass = CLASS3;
14109 icmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
14110 ctiocb->context1 = ndlp;
14112 ctiocb->iocb_cmpl = NULL;
14113 ctiocb->vport = phba->pport;
14114 ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_rsp_cmpl;
14115 ctiocb->sli4_lxritag = NO_XRI;
14116 ctiocb->sli4_xritag = NO_XRI;
14118 if (fctl & FC_FC_EX_CTX)
14119 /* Exchange responder sent the abort so we
14125 lxri = lpfc_sli4_xri_inrange(phba, xri);
14126 if (lxri != NO_XRI)
14127 lpfc_set_rrq_active(phba, ndlp, lxri,
14128 (xri == oxid) ? rxid : oxid, 0);
14129 /* If the oxid maps to the FCP XRI range or if it is out of range,
14130 * send a BLS_RJT. The driver no longer has that exchange.
14131 * Override the IOCB for a BA_RJT.
14133 if (xri > (phba->sli4_hba.max_cfg_param.max_xri +
14134 phba->sli4_hba.max_cfg_param.xri_base) ||
14135 xri > (lpfc_sli4_get_els_iocb_cnt(phba) +
14136 phba->sli4_hba.max_cfg_param.xri_base)) {
14137 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
14138 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
14139 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
14140 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
14143 if (fctl & FC_FC_EX_CTX) {
14144 /* ABTS sent by responder to CT exchange, construction
14145 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
14146 * field and RX_ID from ABTS for RX_ID field.
14148 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_RSP);
14150 /* ABTS sent by initiator to CT exchange, construction
14151 * of BA_ACC will need to allocate a new XRI as for the
14154 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_INT);
14156 bf_set(lpfc_abts_rxid, &icmd->un.bls_rsp, rxid);
14157 bf_set(lpfc_abts_oxid, &icmd->un.bls_rsp, oxid);
14159 /* Xmit CT abts response on exchange <xid> */
14160 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
14161 "1200 Send BLS cmd x%x on oxid x%x Data: x%x\n",
14162 icmd->un.xseq64.w5.hcsw.Rctl, oxid, phba->link_state);
14164 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
14165 if (rc == IOCB_ERROR) {
14166 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
14167 "2925 Failed to issue CT ABTS RSP x%x on "
14168 "xri x%x, Data x%x\n",
14169 icmd->un.xseq64.w5.hcsw.Rctl, oxid,
14171 lpfc_sli_release_iocbq(phba, ctiocb);
14176 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
14177 * @vport: Pointer to the vport on which this sequence was received
14178 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14180 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
14181 * receive sequence is only partially assembed by the driver, it shall abort
14182 * the partially assembled frames for the sequence. Otherwise, if the
14183 * unsolicited receive sequence has been completely assembled and passed to
14184 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
14185 * unsolicited sequence has been aborted. After that, it will issue a basic
14186 * accept to accept the abort.
14189 lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
14190 struct hbq_dmabuf *dmabuf)
14192 struct lpfc_hba *phba = vport->phba;
14193 struct fc_frame_header fc_hdr;
14197 /* Make a copy of fc_hdr before the dmabuf being released */
14198 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
14199 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
14201 if (fctl & FC_FC_EX_CTX) {
14203 * ABTS sent by responder to exchange, just free the buffer
14205 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14208 * ABTS sent by initiator to exchange, need to do cleanup
14210 /* Try to abort partially assembled seq */
14211 abts_par = lpfc_sli4_abort_partial_seq(vport, dmabuf);
14213 /* Send abort to ULP if partially seq abort failed */
14214 if (abts_par == false)
14215 lpfc_sli4_send_seq_to_ulp(vport, dmabuf);
14217 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14219 /* Send basic accept (BA_ACC) to the abort requester */
14220 lpfc_sli4_seq_abort_rsp(phba, &fc_hdr);
14224 * lpfc_seq_complete - Indicates if a sequence is complete
14225 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14227 * This function checks the sequence, starting with the frame described by
14228 * @dmabuf, to see if all the frames associated with this sequence are present.
14229 * the frames associated with this sequence are linked to the @dmabuf using the
14230 * dbuf list. This function looks for two major things. 1) That the first frame
14231 * has a sequence count of zero. 2) There is a frame with last frame of sequence
14232 * set. 3) That there are no holes in the sequence count. The function will
14233 * return 1 when the sequence is complete, otherwise it will return 0.
14236 lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
14238 struct fc_frame_header *hdr;
14239 struct lpfc_dmabuf *d_buf;
14240 struct hbq_dmabuf *seq_dmabuf;
14244 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14245 /* make sure first fame of sequence has a sequence count of zero */
14246 if (hdr->fh_seq_cnt != seq_count)
14248 fctl = (hdr->fh_f_ctl[0] << 16 |
14249 hdr->fh_f_ctl[1] << 8 |
14251 /* If last frame of sequence we can return success. */
14252 if (fctl & FC_FC_END_SEQ)
14254 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
14255 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14256 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
14257 /* If there is a hole in the sequence count then fail. */
14258 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
14260 fctl = (hdr->fh_f_ctl[0] << 16 |
14261 hdr->fh_f_ctl[1] << 8 |
14263 /* If last frame of sequence we can return success. */
14264 if (fctl & FC_FC_END_SEQ)
14271 * lpfc_prep_seq - Prep sequence for ULP processing
14272 * @vport: Pointer to the vport on which this sequence was received
14273 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14275 * This function takes a sequence, described by a list of frames, and creates
14276 * a list of iocbq structures to describe the sequence. This iocbq list will be
14277 * used to issue to the generic unsolicited sequence handler. This routine
14278 * returns a pointer to the first iocbq in the list. If the function is unable
14279 * to allocate an iocbq then it throw out the received frames that were not
14280 * able to be described and return a pointer to the first iocbq. If unable to
14281 * allocate any iocbqs (including the first) this function will return NULL.
14283 static struct lpfc_iocbq *
14284 lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
14286 struct hbq_dmabuf *hbq_buf;
14287 struct lpfc_dmabuf *d_buf, *n_buf;
14288 struct lpfc_iocbq *first_iocbq, *iocbq;
14289 struct fc_frame_header *fc_hdr;
14291 uint32_t len, tot_len;
14292 struct ulp_bde64 *pbde;
14294 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
14295 /* remove from receive buffer list */
14296 list_del_init(&seq_dmabuf->hbuf.list);
14297 lpfc_update_rcv_time_stamp(vport);
14298 /* get the Remote Port's SID */
14299 sid = sli4_sid_from_fc_hdr(fc_hdr);
14301 /* Get an iocbq struct to fill in. */
14302 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
14304 /* Initialize the first IOCB. */
14305 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
14306 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
14308 /* Check FC Header to see what TYPE of frame we are rcv'ing */
14309 if (sli4_type_from_fc_hdr(fc_hdr) == FC_TYPE_ELS) {
14310 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_ELS64_CX;
14311 first_iocbq->iocb.un.rcvels.parmRo =
14312 sli4_did_from_fc_hdr(fc_hdr);
14313 first_iocbq->iocb.ulpPU = PARM_NPIV_DID;
14315 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
14316 first_iocbq->iocb.ulpContext = NO_XRI;
14317 first_iocbq->iocb.unsli3.rcvsli3.ox_id =
14318 be16_to_cpu(fc_hdr->fh_ox_id);
14319 /* iocbq is prepped for internal consumption. Physical vpi. */
14320 first_iocbq->iocb.unsli3.rcvsli3.vpi =
14321 vport->phba->vpi_ids[vport->vpi];
14322 /* put the first buffer into the first IOCBq */
14323 first_iocbq->context2 = &seq_dmabuf->dbuf;
14324 first_iocbq->context3 = NULL;
14325 first_iocbq->iocb.ulpBdeCount = 1;
14326 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
14327 LPFC_DATA_BUF_SIZE;
14328 first_iocbq->iocb.un.rcvels.remoteID = sid;
14329 tot_len = bf_get(lpfc_rcqe_length,
14330 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
14331 first_iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
14333 iocbq = first_iocbq;
14335 * Each IOCBq can have two Buffers assigned, so go through the list
14336 * of buffers for this sequence and save two buffers in each IOCBq
14338 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
14340 lpfc_in_buf_free(vport->phba, d_buf);
14343 if (!iocbq->context3) {
14344 iocbq->context3 = d_buf;
14345 iocbq->iocb.ulpBdeCount++;
14346 pbde = (struct ulp_bde64 *)
14347 &iocbq->iocb.unsli3.sli3Words[4];
14348 pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
14350 /* We need to get the size out of the right CQE */
14351 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14352 len = bf_get(lpfc_rcqe_length,
14353 &hbq_buf->cq_event.cqe.rcqe_cmpl);
14354 iocbq->iocb.unsli3.rcvsli3.acc_len += len;
14357 iocbq = lpfc_sli_get_iocbq(vport->phba);
14360 first_iocbq->iocb.ulpStatus =
14361 IOSTAT_FCP_RSP_ERROR;
14362 first_iocbq->iocb.un.ulpWord[4] =
14363 IOERR_NO_RESOURCES;
14365 lpfc_in_buf_free(vport->phba, d_buf);
14368 iocbq->context2 = d_buf;
14369 iocbq->context3 = NULL;
14370 iocbq->iocb.ulpBdeCount = 1;
14371 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
14372 LPFC_DATA_BUF_SIZE;
14374 /* We need to get the size out of the right CQE */
14375 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14376 len = bf_get(lpfc_rcqe_length,
14377 &hbq_buf->cq_event.cqe.rcqe_cmpl);
14379 iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
14381 iocbq->iocb.un.rcvels.remoteID = sid;
14382 list_add_tail(&iocbq->list, &first_iocbq->list);
14385 return first_iocbq;
14389 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
14390 struct hbq_dmabuf *seq_dmabuf)
14392 struct fc_frame_header *fc_hdr;
14393 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
14394 struct lpfc_hba *phba = vport->phba;
14396 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
14397 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
14399 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14400 "2707 Ring %d handler: Failed to allocate "
14401 "iocb Rctl x%x Type x%x received\n",
14403 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
14406 if (!lpfc_complete_unsol_iocb(phba,
14407 &phba->sli.ring[LPFC_ELS_RING],
14408 iocbq, fc_hdr->fh_r_ctl,
14410 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14411 "2540 Ring %d handler: unexpected Rctl "
14412 "x%x Type x%x received\n",
14414 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
14416 /* Free iocb created in lpfc_prep_seq */
14417 list_for_each_entry_safe(curr_iocb, next_iocb,
14418 &iocbq->list, list) {
14419 list_del_init(&curr_iocb->list);
14420 lpfc_sli_release_iocbq(phba, curr_iocb);
14422 lpfc_sli_release_iocbq(phba, iocbq);
14426 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
14427 * @phba: Pointer to HBA context object.
14429 * This function is called with no lock held. This function processes all
14430 * the received buffers and gives it to upper layers when a received buffer
14431 * indicates that it is the final frame in the sequence. The interrupt
14432 * service routine processes received buffers at interrupt contexts and adds
14433 * received dma buffers to the rb_pend_list queue and signals the worker thread.
14434 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
14435 * appropriate receive function when the final frame in a sequence is received.
14438 lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
14439 struct hbq_dmabuf *dmabuf)
14441 struct hbq_dmabuf *seq_dmabuf;
14442 struct fc_frame_header *fc_hdr;
14443 struct lpfc_vport *vport;
14447 /* Process each received buffer */
14448 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14449 /* check to see if this a valid type of frame */
14450 if (lpfc_fc_frame_check(phba, fc_hdr)) {
14451 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14454 if ((bf_get(lpfc_cqe_code,
14455 &dmabuf->cq_event.cqe.rcqe_cmpl) == CQE_CODE_RECEIVE_V1))
14456 fcfi = bf_get(lpfc_rcqe_fcf_id_v1,
14457 &dmabuf->cq_event.cqe.rcqe_cmpl);
14459 fcfi = bf_get(lpfc_rcqe_fcf_id,
14460 &dmabuf->cq_event.cqe.rcqe_cmpl);
14462 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi);
14464 /* throw out the frame */
14465 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14469 /* d_id this frame is directed to */
14470 did = sli4_did_from_fc_hdr(fc_hdr);
14472 /* vport is registered unless we rcv a FLOGI directed to Fabric_DID */
14473 if (!(vport->vpi_state & LPFC_VPI_REGISTERED) &&
14474 (did != Fabric_DID)) {
14476 * Throw out the frame if we are not pt2pt.
14477 * The pt2pt protocol allows for discovery frames
14478 * to be received without a registered VPI.
14480 if (!(vport->fc_flag & FC_PT2PT) ||
14481 (phba->link_state == LPFC_HBA_READY)) {
14482 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14487 /* Handle the basic abort sequence (BA_ABTS) event */
14488 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
14489 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
14493 /* Link this frame */
14494 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
14496 /* unable to add frame to vport - throw it out */
14497 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14500 /* If not last frame in sequence continue processing frames. */
14501 if (!lpfc_seq_complete(seq_dmabuf))
14504 /* Send the complete sequence to the upper layer protocol */
14505 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
14509 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
14510 * @phba: pointer to lpfc hba data structure.
14512 * This routine is invoked to post rpi header templates to the
14513 * HBA consistent with the SLI-4 interface spec. This routine
14514 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
14515 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
14517 * This routine does not require any locks. It's usage is expected
14518 * to be driver load or reset recovery when the driver is
14523 * -EIO - The mailbox failed to complete successfully.
14524 * When this error occurs, the driver is not guaranteed
14525 * to have any rpi regions posted to the device and
14526 * must either attempt to repost the regions or take a
14530 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
14532 struct lpfc_rpi_hdr *rpi_page;
14536 /* SLI4 ports that support extents do not require RPI headers. */
14537 if (!phba->sli4_hba.rpi_hdrs_in_use)
14539 if (phba->sli4_hba.extents_in_use)
14542 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
14544 * Assign the rpi headers a physical rpi only if the driver
14545 * has not initialized those resources. A port reset only
14546 * needs the headers posted.
14548 if (bf_get(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags) !=
14550 rpi_page->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
14552 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
14553 if (rc != MBX_SUCCESS) {
14554 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14555 "2008 Error %d posting all rpi "
14563 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags,
14564 LPFC_RPI_RSRC_RDY);
14569 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
14570 * @phba: pointer to lpfc hba data structure.
14571 * @rpi_page: pointer to the rpi memory region.
14573 * This routine is invoked to post a single rpi header to the
14574 * HBA consistent with the SLI-4 interface spec. This memory region
14575 * maps up to 64 rpi context regions.
14579 * -ENOMEM - No available memory
14580 * -EIO - The mailbox failed to complete successfully.
14583 lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
14585 LPFC_MBOXQ_t *mboxq;
14586 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
14588 uint32_t shdr_status, shdr_add_status;
14589 union lpfc_sli4_cfg_shdr *shdr;
14591 /* SLI4 ports that support extents do not require RPI headers. */
14592 if (!phba->sli4_hba.rpi_hdrs_in_use)
14594 if (phba->sli4_hba.extents_in_use)
14597 /* The port is notified of the header region via a mailbox command. */
14598 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14600 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14601 "2001 Unable to allocate memory for issuing "
14602 "SLI_CONFIG_SPECIAL mailbox command\n");
14606 /* Post all rpi memory regions to the port. */
14607 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
14608 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
14609 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
14610 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
14611 sizeof(struct lpfc_sli4_cfg_mhdr),
14612 LPFC_SLI4_MBX_EMBED);
14615 /* Post the physical rpi to the port for this rpi header. */
14616 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
14617 rpi_page->start_rpi);
14618 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
14619 hdr_tmpl, rpi_page->page_count);
14621 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
14622 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
14623 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
14624 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
14625 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14626 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14627 if (rc != MBX_TIMEOUT)
14628 mempool_free(mboxq, phba->mbox_mem_pool);
14629 if (shdr_status || shdr_add_status || rc) {
14630 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14631 "2514 POST_RPI_HDR mailbox failed with "
14632 "status x%x add_status x%x, mbx status x%x\n",
14633 shdr_status, shdr_add_status, rc);
14640 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
14641 * @phba: pointer to lpfc hba data structure.
14643 * This routine is invoked to post rpi header templates to the
14644 * HBA consistent with the SLI-4 interface spec. This routine
14645 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
14646 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
14649 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
14650 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
14653 lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
14656 uint16_t max_rpi, rpi_limit;
14657 uint16_t rpi_remaining, lrpi = 0;
14658 struct lpfc_rpi_hdr *rpi_hdr;
14660 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
14661 rpi_limit = phba->sli4_hba.next_rpi;
14664 * Fetch the next logical rpi. Because this index is logical,
14665 * the driver starts at 0 each time.
14667 spin_lock_irq(&phba->hbalock);
14668 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, 0);
14669 if (rpi >= rpi_limit)
14670 rpi = LPFC_RPI_ALLOC_ERROR;
14672 set_bit(rpi, phba->sli4_hba.rpi_bmask);
14673 phba->sli4_hba.max_cfg_param.rpi_used++;
14674 phba->sli4_hba.rpi_count++;
14678 * Don't try to allocate more rpi header regions if the device limit
14679 * has been exhausted.
14681 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
14682 (phba->sli4_hba.rpi_count >= max_rpi)) {
14683 spin_unlock_irq(&phba->hbalock);
14688 * RPI header postings are not required for SLI4 ports capable of
14691 if (!phba->sli4_hba.rpi_hdrs_in_use) {
14692 spin_unlock_irq(&phba->hbalock);
14697 * If the driver is running low on rpi resources, allocate another
14698 * page now. Note that the next_rpi value is used because
14699 * it represents how many are actually in use whereas max_rpi notes
14700 * how many are supported max by the device.
14702 rpi_remaining = phba->sli4_hba.next_rpi - phba->sli4_hba.rpi_count;
14703 spin_unlock_irq(&phba->hbalock);
14704 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
14705 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
14707 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14708 "2002 Error Could not grow rpi "
14711 lrpi = rpi_hdr->start_rpi;
14712 rpi_hdr->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
14713 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
14721 * lpfc_sli4_free_rpi - Release an rpi for reuse.
14722 * @phba: pointer to lpfc hba data structure.
14724 * This routine is invoked to release an rpi to the pool of
14725 * available rpis maintained by the driver.
14728 __lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
14730 if (test_and_clear_bit(rpi, phba->sli4_hba.rpi_bmask)) {
14731 phba->sli4_hba.rpi_count--;
14732 phba->sli4_hba.max_cfg_param.rpi_used--;
14737 * lpfc_sli4_free_rpi - Release an rpi for reuse.
14738 * @phba: pointer to lpfc hba data structure.
14740 * This routine is invoked to release an rpi to the pool of
14741 * available rpis maintained by the driver.
14744 lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
14746 spin_lock_irq(&phba->hbalock);
14747 __lpfc_sli4_free_rpi(phba, rpi);
14748 spin_unlock_irq(&phba->hbalock);
14752 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
14753 * @phba: pointer to lpfc hba data structure.
14755 * This routine is invoked to remove the memory region that
14756 * provided rpi via a bitmask.
14759 lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
14761 kfree(phba->sli4_hba.rpi_bmask);
14762 kfree(phba->sli4_hba.rpi_ids);
14763 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
14767 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
14768 * @phba: pointer to lpfc hba data structure.
14770 * This routine is invoked to remove the memory region that
14771 * provided rpi via a bitmask.
14774 lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp,
14775 void (*cmpl)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *arg)
14777 LPFC_MBOXQ_t *mboxq;
14778 struct lpfc_hba *phba = ndlp->phba;
14781 /* The port is notified of the header region via a mailbox command. */
14782 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14786 /* Post all rpi memory regions to the port. */
14787 lpfc_resume_rpi(mboxq, ndlp);
14789 mboxq->mbox_cmpl = cmpl;
14790 mboxq->context1 = arg;
14791 mboxq->context2 = ndlp;
14793 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14794 mboxq->vport = ndlp->vport;
14795 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
14796 if (rc == MBX_NOT_FINISHED) {
14797 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14798 "2010 Resume RPI Mailbox failed "
14799 "status %d, mbxStatus x%x\n", rc,
14800 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
14801 mempool_free(mboxq, phba->mbox_mem_pool);
14808 * lpfc_sli4_init_vpi - Initialize a vpi with the port
14809 * @vport: Pointer to the vport for which the vpi is being initialized
14811 * This routine is invoked to activate a vpi with the port.
14815 * -Evalue otherwise
14818 lpfc_sli4_init_vpi(struct lpfc_vport *vport)
14820 LPFC_MBOXQ_t *mboxq;
14822 int retval = MBX_SUCCESS;
14824 struct lpfc_hba *phba = vport->phba;
14825 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14828 lpfc_init_vpi(phba, mboxq, vport->vpi);
14829 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
14830 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
14831 if (rc != MBX_SUCCESS) {
14832 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
14833 "2022 INIT VPI Mailbox failed "
14834 "status %d, mbxStatus x%x\n", rc,
14835 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
14838 if (rc != MBX_TIMEOUT)
14839 mempool_free(mboxq, vport->phba->mbox_mem_pool);
14845 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
14846 * @phba: pointer to lpfc hba data structure.
14847 * @mboxq: Pointer to mailbox object.
14849 * This routine is invoked to manually add a single FCF record. The caller
14850 * must pass a completely initialized FCF_Record. This routine takes
14851 * care of the nonembedded mailbox operations.
14854 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
14857 union lpfc_sli4_cfg_shdr *shdr;
14858 uint32_t shdr_status, shdr_add_status;
14860 virt_addr = mboxq->sge_array->addr[0];
14861 /* The IOCTL status is embedded in the mailbox subheader. */
14862 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
14863 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14864 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14866 if ((shdr_status || shdr_add_status) &&
14867 (shdr_status != STATUS_FCF_IN_USE))
14868 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14869 "2558 ADD_FCF_RECORD mailbox failed with "
14870 "status x%x add_status x%x\n",
14871 shdr_status, shdr_add_status);
14873 lpfc_sli4_mbox_cmd_free(phba, mboxq);
14877 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
14878 * @phba: pointer to lpfc hba data structure.
14879 * @fcf_record: pointer to the initialized fcf record to add.
14881 * This routine is invoked to manually add a single FCF record. The caller
14882 * must pass a completely initialized FCF_Record. This routine takes
14883 * care of the nonembedded mailbox operations.
14886 lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
14889 LPFC_MBOXQ_t *mboxq;
14892 dma_addr_t phys_addr;
14893 struct lpfc_mbx_sge sge;
14894 uint32_t alloc_len, req_len;
14897 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14899 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14900 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
14904 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
14907 /* Allocate DMA memory and set up the non-embedded mailbox command */
14908 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
14909 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
14910 req_len, LPFC_SLI4_MBX_NEMBED);
14911 if (alloc_len < req_len) {
14912 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14913 "2523 Allocated DMA memory size (x%x) is "
14914 "less than the requested DMA memory "
14915 "size (x%x)\n", alloc_len, req_len);
14916 lpfc_sli4_mbox_cmd_free(phba, mboxq);
14921 * Get the first SGE entry from the non-embedded DMA memory. This
14922 * routine only uses a single SGE.
14924 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
14925 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
14926 virt_addr = mboxq->sge_array->addr[0];
14928 * Configure the FCF record for FCFI 0. This is the driver's
14929 * hardcoded default and gets used in nonFIP mode.
14931 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
14932 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
14933 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
14936 * Copy the fcf_index and the FCF Record Data. The data starts after
14937 * the FCoE header plus word10. The data copy needs to be endian
14940 bytep += sizeof(uint32_t);
14941 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
14942 mboxq->vport = phba->pport;
14943 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
14944 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
14945 if (rc == MBX_NOT_FINISHED) {
14946 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14947 "2515 ADD_FCF_RECORD mailbox failed with "
14948 "status 0x%x\n", rc);
14949 lpfc_sli4_mbox_cmd_free(phba, mboxq);
14958 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
14959 * @phba: pointer to lpfc hba data structure.
14960 * @fcf_record: pointer to the fcf record to write the default data.
14961 * @fcf_index: FCF table entry index.
14963 * This routine is invoked to build the driver's default FCF record. The
14964 * values used are hardcoded. This routine handles memory initialization.
14968 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
14969 struct fcf_record *fcf_record,
14970 uint16_t fcf_index)
14972 memset(fcf_record, 0, sizeof(struct fcf_record));
14973 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
14974 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
14975 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
14976 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
14977 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
14978 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
14979 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
14980 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
14981 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
14982 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
14983 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
14984 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
14985 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
14986 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
14987 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
14988 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
14989 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
14990 /* Set the VLAN bit map */
14991 if (phba->valid_vlan) {
14992 fcf_record->vlan_bitmap[phba->vlan_id / 8]
14993 = 1 << (phba->vlan_id % 8);
14998 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
14999 * @phba: pointer to lpfc hba data structure.
15000 * @fcf_index: FCF table entry offset.
15002 * This routine is invoked to scan the entire FCF table by reading FCF
15003 * record and processing it one at a time starting from the @fcf_index
15004 * for initial FCF discovery or fast FCF failover rediscovery.
15006 * Return 0 if the mailbox command is submitted successfully, none 0
15010 lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
15013 LPFC_MBOXQ_t *mboxq;
15015 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
15016 phba->fcoe_cvl_eventtag_attn = phba->fcoe_cvl_eventtag;
15017 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15019 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15020 "2000 Failed to allocate mbox for "
15023 goto fail_fcf_scan;
15025 /* Construct the read FCF record mailbox command */
15026 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
15029 goto fail_fcf_scan;
15031 /* Issue the mailbox command asynchronously */
15032 mboxq->vport = phba->pport;
15033 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
15035 spin_lock_irq(&phba->hbalock);
15036 phba->hba_flag |= FCF_TS_INPROG;
15037 spin_unlock_irq(&phba->hbalock);
15039 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15040 if (rc == MBX_NOT_FINISHED)
15043 /* Reset eligible FCF count for new scan */
15044 if (fcf_index == LPFC_FCOE_FCF_GET_FIRST)
15045 phba->fcf.eligible_fcf_cnt = 0;
15051 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15052 /* FCF scan failed, clear FCF_TS_INPROG flag */
15053 spin_lock_irq(&phba->hbalock);
15054 phba->hba_flag &= ~FCF_TS_INPROG;
15055 spin_unlock_irq(&phba->hbalock);
15061 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
15062 * @phba: pointer to lpfc hba data structure.
15063 * @fcf_index: FCF table entry offset.
15065 * This routine is invoked to read an FCF record indicated by @fcf_index
15066 * and to use it for FLOGI roundrobin FCF failover.
15068 * Return 0 if the mailbox command is submitted successfully, none 0
15072 lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
15075 LPFC_MBOXQ_t *mboxq;
15077 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15079 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
15080 "2763 Failed to allocate mbox for "
15083 goto fail_fcf_read;
15085 /* Construct the read FCF record mailbox command */
15086 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
15089 goto fail_fcf_read;
15091 /* Issue the mailbox command asynchronously */
15092 mboxq->vport = phba->pport;
15093 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
15094 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15095 if (rc == MBX_NOT_FINISHED)
15101 if (error && mboxq)
15102 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15107 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
15108 * @phba: pointer to lpfc hba data structure.
15109 * @fcf_index: FCF table entry offset.
15111 * This routine is invoked to read an FCF record indicated by @fcf_index to
15112 * determine whether it's eligible for FLOGI roundrobin failover list.
15114 * Return 0 if the mailbox command is submitted successfully, none 0
15118 lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
15121 LPFC_MBOXQ_t *mboxq;
15123 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15125 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
15126 "2758 Failed to allocate mbox for "
15129 goto fail_fcf_read;
15131 /* Construct the read FCF record mailbox command */
15132 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
15135 goto fail_fcf_read;
15137 /* Issue the mailbox command asynchronously */
15138 mboxq->vport = phba->pport;
15139 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
15140 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15141 if (rc == MBX_NOT_FINISHED)
15147 if (error && mboxq)
15148 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15153 * lpfc_check_next_fcf_pri
15154 * phba pointer to the lpfc_hba struct for this port.
15155 * This routine is called from the lpfc_sli4_fcf_rr_next_index_get
15156 * routine when the rr_bmask is empty. The FCF indecies are put into the
15157 * rr_bmask based on their priority level. Starting from the highest priority
15158 * to the lowest. The most likely FCF candidate will be in the highest
15159 * priority group. When this routine is called it searches the fcf_pri list for
15160 * next lowest priority group and repopulates the rr_bmask with only those
15163 * 1=success 0=failure
15166 lpfc_check_next_fcf_pri_level(struct lpfc_hba *phba)
15168 uint16_t next_fcf_pri;
15169 uint16_t last_index;
15170 struct lpfc_fcf_pri *fcf_pri;
15174 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
15175 LPFC_SLI4_FCF_TBL_INDX_MAX);
15176 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15177 "3060 Last IDX %d\n", last_index);
15178 if (list_empty(&phba->fcf.fcf_pri_list)) {
15179 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
15180 "3061 Last IDX %d\n", last_index);
15181 return 0; /* Empty rr list */
15185 * Clear the rr_bmask and set all of the bits that are at this
15188 memset(phba->fcf.fcf_rr_bmask, 0,
15189 sizeof(*phba->fcf.fcf_rr_bmask));
15190 spin_lock_irq(&phba->hbalock);
15191 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
15192 if (fcf_pri->fcf_rec.flag & LPFC_FCF_FLOGI_FAILED)
15195 * the 1st priority that has not FLOGI failed
15196 * will be the highest.
15199 next_fcf_pri = fcf_pri->fcf_rec.priority;
15200 spin_unlock_irq(&phba->hbalock);
15201 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
15202 rc = lpfc_sli4_fcf_rr_index_set(phba,
15203 fcf_pri->fcf_rec.fcf_index);
15207 spin_lock_irq(&phba->hbalock);
15210 * if next_fcf_pri was not set above and the list is not empty then
15211 * we have failed flogis on all of them. So reset flogi failed
15212 * and start at the begining.
15214 if (!next_fcf_pri && !list_empty(&phba->fcf.fcf_pri_list)) {
15215 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
15216 fcf_pri->fcf_rec.flag &= ~LPFC_FCF_FLOGI_FAILED;
15218 * the 1st priority that has not FLOGI failed
15219 * will be the highest.
15222 next_fcf_pri = fcf_pri->fcf_rec.priority;
15223 spin_unlock_irq(&phba->hbalock);
15224 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
15225 rc = lpfc_sli4_fcf_rr_index_set(phba,
15226 fcf_pri->fcf_rec.fcf_index);
15230 spin_lock_irq(&phba->hbalock);
15234 spin_unlock_irq(&phba->hbalock);
15239 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
15240 * @phba: pointer to lpfc hba data structure.
15242 * This routine is to get the next eligible FCF record index in a round
15243 * robin fashion. If the next eligible FCF record index equals to the
15244 * initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
15245 * shall be returned, otherwise, the next eligible FCF record's index
15246 * shall be returned.
15249 lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
15251 uint16_t next_fcf_index;
15253 /* Search start from next bit of currently registered FCF index */
15255 next_fcf_index = (phba->fcf.current_rec.fcf_indx + 1) %
15256 LPFC_SLI4_FCF_TBL_INDX_MAX;
15257 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
15258 LPFC_SLI4_FCF_TBL_INDX_MAX,
15261 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
15262 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
15264 * If we have wrapped then we need to clear the bits that
15265 * have been tested so that we can detect when we should
15266 * change the priority level.
15268 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
15269 LPFC_SLI4_FCF_TBL_INDX_MAX, 0);
15273 /* Check roundrobin failover list empty condition */
15274 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX ||
15275 next_fcf_index == phba->fcf.current_rec.fcf_indx) {
15277 * If next fcf index is not found check if there are lower
15278 * Priority level fcf's in the fcf_priority list.
15279 * Set up the rr_bmask with all of the avaiable fcf bits
15280 * at that level and continue the selection process.
15282 if (lpfc_check_next_fcf_pri_level(phba))
15283 goto next_priority;
15284 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
15285 "2844 No roundrobin failover FCF available\n");
15286 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX)
15287 return LPFC_FCOE_FCF_NEXT_NONE;
15289 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
15290 "3063 Only FCF available idx %d, flag %x\n",
15292 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag);
15293 return next_fcf_index;
15297 if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX &&
15298 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag &
15299 LPFC_FCF_FLOGI_FAILED)
15300 goto next_priority;
15302 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15303 "2845 Get next roundrobin failover FCF (x%x)\n",
15306 return next_fcf_index;
15310 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
15311 * @phba: pointer to lpfc hba data structure.
15313 * This routine sets the FCF record index in to the eligible bmask for
15314 * roundrobin failover search. It checks to make sure that the index
15315 * does not go beyond the range of the driver allocated bmask dimension
15316 * before setting the bit.
15318 * Returns 0 if the index bit successfully set, otherwise, it returns
15322 lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
15324 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
15325 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
15326 "2610 FCF (x%x) reached driver's book "
15327 "keeping dimension:x%x\n",
15328 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
15331 /* Set the eligible FCF record index bmask */
15332 set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
15334 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15335 "2790 Set FCF (x%x) to roundrobin FCF failover "
15336 "bmask\n", fcf_index);
15342 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
15343 * @phba: pointer to lpfc hba data structure.
15345 * This routine clears the FCF record index from the eligible bmask for
15346 * roundrobin failover search. It checks to make sure that the index
15347 * does not go beyond the range of the driver allocated bmask dimension
15348 * before clearing the bit.
15351 lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
15353 struct lpfc_fcf_pri *fcf_pri;
15354 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
15355 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
15356 "2762 FCF (x%x) reached driver's book "
15357 "keeping dimension:x%x\n",
15358 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
15361 /* Clear the eligible FCF record index bmask */
15362 spin_lock_irq(&phba->hbalock);
15363 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
15364 if (fcf_pri->fcf_rec.fcf_index == fcf_index) {
15365 list_del_init(&fcf_pri->list);
15369 spin_unlock_irq(&phba->hbalock);
15370 clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
15372 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15373 "2791 Clear FCF (x%x) from roundrobin failover "
15374 "bmask\n", fcf_index);
15378 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
15379 * @phba: pointer to lpfc hba data structure.
15381 * This routine is the completion routine for the rediscover FCF table mailbox
15382 * command. If the mailbox command returned failure, it will try to stop the
15383 * FCF rediscover wait timer.
15386 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
15388 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
15389 uint32_t shdr_status, shdr_add_status;
15391 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
15393 shdr_status = bf_get(lpfc_mbox_hdr_status,
15394 &redisc_fcf->header.cfg_shdr.response);
15395 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
15396 &redisc_fcf->header.cfg_shdr.response);
15397 if (shdr_status || shdr_add_status) {
15398 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
15399 "2746 Requesting for FCF rediscovery failed "
15400 "status x%x add_status x%x\n",
15401 shdr_status, shdr_add_status);
15402 if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
15403 spin_lock_irq(&phba->hbalock);
15404 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
15405 spin_unlock_irq(&phba->hbalock);
15407 * CVL event triggered FCF rediscover request failed,
15408 * last resort to re-try current registered FCF entry.
15410 lpfc_retry_pport_discovery(phba);
15412 spin_lock_irq(&phba->hbalock);
15413 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
15414 spin_unlock_irq(&phba->hbalock);
15416 * DEAD FCF event triggered FCF rediscover request
15417 * failed, last resort to fail over as a link down
15418 * to FCF registration.
15420 lpfc_sli4_fcf_dead_failthrough(phba);
15423 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15424 "2775 Start FCF rediscover quiescent timer\n");
15426 * Start FCF rediscovery wait timer for pending FCF
15427 * before rescan FCF record table.
15429 lpfc_fcf_redisc_wait_start_timer(phba);
15432 mempool_free(mbox, phba->mbox_mem_pool);
15436 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
15437 * @phba: pointer to lpfc hba data structure.
15439 * This routine is invoked to request for rediscovery of the entire FCF table
15443 lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
15445 LPFC_MBOXQ_t *mbox;
15446 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
15449 /* Cancel retry delay timers to all vports before FCF rediscover */
15450 lpfc_cancel_all_vport_retry_delay_timer(phba);
15452 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15454 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15455 "2745 Failed to allocate mbox for "
15456 "requesting FCF rediscover.\n");
15460 length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
15461 sizeof(struct lpfc_sli4_cfg_mhdr));
15462 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15463 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
15464 length, LPFC_SLI4_MBX_EMBED);
15466 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
15467 /* Set count to 0 for invalidating the entire FCF database */
15468 bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
15470 /* Issue the mailbox command asynchronously */
15471 mbox->vport = phba->pport;
15472 mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
15473 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
15475 if (rc == MBX_NOT_FINISHED) {
15476 mempool_free(mbox, phba->mbox_mem_pool);
15483 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
15484 * @phba: pointer to lpfc hba data structure.
15486 * This function is the failover routine as a last resort to the FCF DEAD
15487 * event when driver failed to perform fast FCF failover.
15490 lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
15492 uint32_t link_state;
15495 * Last resort as FCF DEAD event failover will treat this as
15496 * a link down, but save the link state because we don't want
15497 * it to be changed to Link Down unless it is already down.
15499 link_state = phba->link_state;
15500 lpfc_linkdown(phba);
15501 phba->link_state = link_state;
15503 /* Unregister FCF if no devices connected to it */
15504 lpfc_unregister_unused_fcf(phba);
15508 * lpfc_sli_get_config_region23 - Get sli3 port region 23 data.
15509 * @phba: pointer to lpfc hba data structure.
15510 * @rgn23_data: pointer to configure region 23 data.
15512 * This function gets SLI3 port configure region 23 data through memory dump
15513 * mailbox command. When it successfully retrieves data, the size of the data
15514 * will be returned, otherwise, 0 will be returned.
15517 lpfc_sli_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
15519 LPFC_MBOXQ_t *pmb = NULL;
15521 uint32_t offset = 0;
15527 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15529 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15530 "2600 failed to allocate mailbox memory\n");
15536 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
15537 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
15539 if (rc != MBX_SUCCESS) {
15540 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15541 "2601 failed to read config "
15542 "region 23, rc 0x%x Status 0x%x\n",
15543 rc, mb->mbxStatus);
15544 mb->un.varDmp.word_cnt = 0;
15547 * dump mem may return a zero when finished or we got a
15548 * mailbox error, either way we are done.
15550 if (mb->un.varDmp.word_cnt == 0)
15552 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
15553 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
15555 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
15556 rgn23_data + offset,
15557 mb->un.varDmp.word_cnt);
15558 offset += mb->un.varDmp.word_cnt;
15559 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
15561 mempool_free(pmb, phba->mbox_mem_pool);
15566 * lpfc_sli4_get_config_region23 - Get sli4 port region 23 data.
15567 * @phba: pointer to lpfc hba data structure.
15568 * @rgn23_data: pointer to configure region 23 data.
15570 * This function gets SLI4 port configure region 23 data through memory dump
15571 * mailbox command. When it successfully retrieves data, the size of the data
15572 * will be returned, otherwise, 0 will be returned.
15575 lpfc_sli4_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
15577 LPFC_MBOXQ_t *mboxq = NULL;
15578 struct lpfc_dmabuf *mp = NULL;
15579 struct lpfc_mqe *mqe;
15580 uint32_t data_length = 0;
15586 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15588 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15589 "3105 failed to allocate mailbox memory\n");
15593 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq))
15595 mqe = &mboxq->u.mqe;
15596 mp = (struct lpfc_dmabuf *) mboxq->context1;
15597 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
15600 data_length = mqe->un.mb_words[5];
15601 if (data_length == 0)
15603 if (data_length > DMP_RGN23_SIZE) {
15607 lpfc_sli_pcimem_bcopy((char *)mp->virt, rgn23_data, data_length);
15609 mempool_free(mboxq, phba->mbox_mem_pool);
15611 lpfc_mbuf_free(phba, mp->virt, mp->phys);
15614 return data_length;
15618 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
15619 * @phba: pointer to lpfc hba data structure.
15621 * This function read region 23 and parse TLV for port status to
15622 * decide if the user disaled the port. If the TLV indicates the
15623 * port is disabled, the hba_flag is set accordingly.
15626 lpfc_sli_read_link_ste(struct lpfc_hba *phba)
15628 uint8_t *rgn23_data = NULL;
15629 uint32_t if_type, data_size, sub_tlv_len, tlv_offset;
15630 uint32_t offset = 0;
15632 /* Get adapter Region 23 data */
15633 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
15637 if (phba->sli_rev < LPFC_SLI_REV4)
15638 data_size = lpfc_sli_get_config_region23(phba, rgn23_data);
15640 if_type = bf_get(lpfc_sli_intf_if_type,
15641 &phba->sli4_hba.sli_intf);
15642 if (if_type == LPFC_SLI_INTF_IF_TYPE_0)
15644 data_size = lpfc_sli4_get_config_region23(phba, rgn23_data);
15650 /* Check the region signature first */
15651 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
15652 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15653 "2619 Config region 23 has bad signature\n");
15658 /* Check the data structure version */
15659 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
15660 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15661 "2620 Config region 23 has bad version\n");
15666 /* Parse TLV entries in the region */
15667 while (offset < data_size) {
15668 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
15671 * If the TLV is not driver specific TLV or driver id is
15672 * not linux driver id, skip the record.
15674 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
15675 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
15676 (rgn23_data[offset + 3] != 0)) {
15677 offset += rgn23_data[offset + 1] * 4 + 4;
15681 /* Driver found a driver specific TLV in the config region */
15682 sub_tlv_len = rgn23_data[offset + 1] * 4;
15687 * Search for configured port state sub-TLV.
15689 while ((offset < data_size) &&
15690 (tlv_offset < sub_tlv_len)) {
15691 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
15696 if (rgn23_data[offset] != PORT_STE_TYPE) {
15697 offset += rgn23_data[offset + 1] * 4 + 4;
15698 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
15702 /* This HBA contains PORT_STE configured */
15703 if (!rgn23_data[offset + 2])
15704 phba->hba_flag |= LINK_DISABLED;
15716 * lpfc_wr_object - write an object to the firmware
15717 * @phba: HBA structure that indicates port to create a queue on.
15718 * @dmabuf_list: list of dmabufs to write to the port.
15719 * @size: the total byte value of the objects to write to the port.
15720 * @offset: the current offset to be used to start the transfer.
15722 * This routine will create a wr_object mailbox command to send to the port.
15723 * the mailbox command will be constructed using the dma buffers described in
15724 * @dmabuf_list to create a list of BDEs. This routine will fill in as many
15725 * BDEs that the imbedded mailbox can support. The @offset variable will be
15726 * used to indicate the starting offset of the transfer and will also return
15727 * the offset after the write object mailbox has completed. @size is used to
15728 * determine the end of the object and whether the eof bit should be set.
15730 * Return 0 is successful and offset will contain the the new offset to use
15731 * for the next write.
15732 * Return negative value for error cases.
15735 lpfc_wr_object(struct lpfc_hba *phba, struct list_head *dmabuf_list,
15736 uint32_t size, uint32_t *offset)
15738 struct lpfc_mbx_wr_object *wr_object;
15739 LPFC_MBOXQ_t *mbox;
15741 uint32_t shdr_status, shdr_add_status;
15743 union lpfc_sli4_cfg_shdr *shdr;
15744 struct lpfc_dmabuf *dmabuf;
15745 uint32_t written = 0;
15747 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15751 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
15752 LPFC_MBOX_OPCODE_WRITE_OBJECT,
15753 sizeof(struct lpfc_mbx_wr_object) -
15754 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
15756 wr_object = (struct lpfc_mbx_wr_object *)&mbox->u.mqe.un.wr_object;
15757 wr_object->u.request.write_offset = *offset;
15758 sprintf((uint8_t *)wr_object->u.request.object_name, "/");
15759 wr_object->u.request.object_name[0] =
15760 cpu_to_le32(wr_object->u.request.object_name[0]);
15761 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 0);
15762 list_for_each_entry(dmabuf, dmabuf_list, list) {
15763 if (i >= LPFC_MBX_WR_CONFIG_MAX_BDE || written >= size)
15765 wr_object->u.request.bde[i].addrLow = putPaddrLow(dmabuf->phys);
15766 wr_object->u.request.bde[i].addrHigh =
15767 putPaddrHigh(dmabuf->phys);
15768 if (written + SLI4_PAGE_SIZE >= size) {
15769 wr_object->u.request.bde[i].tus.f.bdeSize =
15771 written += (size - written);
15772 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 1);
15774 wr_object->u.request.bde[i].tus.f.bdeSize =
15776 written += SLI4_PAGE_SIZE;
15780 wr_object->u.request.bde_count = i;
15781 bf_set(lpfc_wr_object_write_length, &wr_object->u.request, written);
15782 if (!phba->sli4_hba.intr_enable)
15783 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15785 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
15786 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
15788 /* The IOCTL status is embedded in the mailbox subheader. */
15789 shdr = (union lpfc_sli4_cfg_shdr *) &wr_object->header.cfg_shdr;
15790 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15791 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15792 if (rc != MBX_TIMEOUT)
15793 mempool_free(mbox, phba->mbox_mem_pool);
15794 if (shdr_status || shdr_add_status || rc) {
15795 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15796 "3025 Write Object mailbox failed with "
15797 "status x%x add_status x%x, mbx status x%x\n",
15798 shdr_status, shdr_add_status, rc);
15801 *offset += wr_object->u.response.actual_write_length;
15806 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
15807 * @vport: pointer to vport data structure.
15809 * This function iterate through the mailboxq and clean up all REG_LOGIN
15810 * and REG_VPI mailbox commands associated with the vport. This function
15811 * is called when driver want to restart discovery of the vport due to
15812 * a Clear Virtual Link event.
15815 lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
15817 struct lpfc_hba *phba = vport->phba;
15818 LPFC_MBOXQ_t *mb, *nextmb;
15819 struct lpfc_dmabuf *mp;
15820 struct lpfc_nodelist *ndlp;
15821 struct lpfc_nodelist *act_mbx_ndlp = NULL;
15822 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
15823 LIST_HEAD(mbox_cmd_list);
15824 uint8_t restart_loop;
15826 /* Clean up internally queued mailbox commands with the vport */
15827 spin_lock_irq(&phba->hbalock);
15828 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
15829 if (mb->vport != vport)
15832 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
15833 (mb->u.mb.mbxCommand != MBX_REG_VPI))
15836 list_del(&mb->list);
15837 list_add_tail(&mb->list, &mbox_cmd_list);
15839 /* Clean up active mailbox command with the vport */
15840 mb = phba->sli.mbox_active;
15841 if (mb && (mb->vport == vport)) {
15842 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
15843 (mb->u.mb.mbxCommand == MBX_REG_VPI))
15844 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15845 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
15846 act_mbx_ndlp = (struct lpfc_nodelist *)mb->context2;
15847 /* Put reference count for delayed processing */
15848 act_mbx_ndlp = lpfc_nlp_get(act_mbx_ndlp);
15849 /* Unregister the RPI when mailbox complete */
15850 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
15853 /* Cleanup any mailbox completions which are not yet processed */
15856 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
15858 * If this mailox is already processed or it is
15859 * for another vport ignore it.
15861 if ((mb->vport != vport) ||
15862 (mb->mbox_flag & LPFC_MBX_IMED_UNREG))
15865 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
15866 (mb->u.mb.mbxCommand != MBX_REG_VPI))
15869 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15870 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
15871 ndlp = (struct lpfc_nodelist *)mb->context2;
15872 /* Unregister the RPI when mailbox complete */
15873 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
15875 spin_unlock_irq(&phba->hbalock);
15876 spin_lock(shost->host_lock);
15877 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
15878 spin_unlock(shost->host_lock);
15879 spin_lock_irq(&phba->hbalock);
15883 } while (restart_loop);
15885 spin_unlock_irq(&phba->hbalock);
15887 /* Release the cleaned-up mailbox commands */
15888 while (!list_empty(&mbox_cmd_list)) {
15889 list_remove_head(&mbox_cmd_list, mb, LPFC_MBOXQ_t, list);
15890 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
15891 mp = (struct lpfc_dmabuf *) (mb->context1);
15893 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
15896 ndlp = (struct lpfc_nodelist *) mb->context2;
15897 mb->context2 = NULL;
15899 spin_lock(shost->host_lock);
15900 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
15901 spin_unlock(shost->host_lock);
15902 lpfc_nlp_put(ndlp);
15905 mempool_free(mb, phba->mbox_mem_pool);
15908 /* Release the ndlp with the cleaned-up active mailbox command */
15909 if (act_mbx_ndlp) {
15910 spin_lock(shost->host_lock);
15911 act_mbx_ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
15912 spin_unlock(shost->host_lock);
15913 lpfc_nlp_put(act_mbx_ndlp);
15918 * lpfc_drain_txq - Drain the txq
15919 * @phba: Pointer to HBA context object.
15921 * This function attempt to submit IOCBs on the txq
15922 * to the adapter. For SLI4 adapters, the txq contains
15923 * ELS IOCBs that have been deferred because the there
15924 * are no SGLs. This congestion can occur with large
15925 * vport counts during node discovery.
15929 lpfc_drain_txq(struct lpfc_hba *phba)
15931 LIST_HEAD(completions);
15932 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
15933 struct lpfc_iocbq *piocbq = 0;
15934 unsigned long iflags = 0;
15935 char *fail_msg = NULL;
15936 struct lpfc_sglq *sglq;
15937 union lpfc_wqe wqe;
15939 spin_lock_irqsave(&phba->hbalock, iflags);
15940 if (pring->txq_cnt > pring->txq_max)
15941 pring->txq_max = pring->txq_cnt;
15943 spin_unlock_irqrestore(&phba->hbalock, iflags);
15945 while (pring->txq_cnt) {
15946 spin_lock_irqsave(&phba->hbalock, iflags);
15948 piocbq = lpfc_sli_ringtx_get(phba, pring);
15950 spin_unlock_irqrestore(&phba->hbalock, iflags);
15951 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15952 "2823 txq empty and txq_cnt is %d\n ",
15956 sglq = __lpfc_sli_get_sglq(phba, piocbq);
15958 __lpfc_sli_ringtx_put(phba, pring, piocbq);
15959 spin_unlock_irqrestore(&phba->hbalock, iflags);
15963 /* The xri and iocb resources secured,
15964 * attempt to issue request
15966 piocbq->sli4_lxritag = sglq->sli4_lxritag;
15967 piocbq->sli4_xritag = sglq->sli4_xritag;
15968 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocbq, sglq))
15969 fail_msg = "to convert bpl to sgl";
15970 else if (lpfc_sli4_iocb2wqe(phba, piocbq, &wqe))
15971 fail_msg = "to convert iocb to wqe";
15972 else if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
15973 fail_msg = " - Wq is full";
15975 lpfc_sli_ringtxcmpl_put(phba, pring, piocbq);
15978 /* Failed means we can't issue and need to cancel */
15979 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15980 "2822 IOCB failed %s iotag 0x%x "
15983 piocbq->iotag, piocbq->sli4_xritag);
15984 list_add_tail(&piocbq->list, &completions);
15986 spin_unlock_irqrestore(&phba->hbalock, iflags);
15989 /* Cancel all the IOCBs that cannot be issued */
15990 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
15991 IOERR_SLI_ABORTED);
15993 return pring->txq_cnt;