1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2016 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>
27 #include <linux/lockdep.h>
29 #include <scsi/scsi.h>
30 #include <scsi/scsi_cmnd.h>
31 #include <scsi/scsi_device.h>
32 #include <scsi/scsi_host.h>
33 #include <scsi/scsi_transport_fc.h>
34 #include <scsi/fc/fc_fs.h>
35 #include <linux/aer.h>
40 #include "lpfc_sli4.h"
42 #include "lpfc_disc.h"
43 #include "lpfc_scsi.h"
45 #include "lpfc_crtn.h"
46 #include "lpfc_logmsg.h"
47 #include "lpfc_compat.h"
48 #include "lpfc_debugfs.h"
49 #include "lpfc_vport.h"
51 /* There are only four IOCB completion types. */
52 typedef enum _lpfc_iocb_type {
60 /* Provide function prototypes local to this module. */
61 static int lpfc_sli_issue_mbox_s4(struct lpfc_hba *, LPFC_MBOXQ_t *,
63 static int lpfc_sli4_read_rev(struct lpfc_hba *, LPFC_MBOXQ_t *,
64 uint8_t *, uint32_t *);
65 static struct lpfc_iocbq *lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *,
67 static void lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *,
69 static int lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *, struct lpfc_queue *,
71 static int lpfc_sli4_post_els_sgl_list(struct lpfc_hba *, struct list_head *,
73 static void lpfc_sli4_hba_handle_eqe(struct lpfc_hba *, struct lpfc_eqe *,
75 static bool lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba);
76 static bool lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba);
79 lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq)
85 * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
86 * @q: The Work Queue to operate on.
87 * @wqe: The work Queue Entry to put on the Work queue.
89 * This routine will copy the contents of @wqe to the next available entry on
90 * the @q. This function will then ring the Work Queue Doorbell to signal the
91 * HBA to start processing the Work Queue Entry. This function returns 0 if
92 * successful. If no entries are available on @q then this function will return
94 * The caller is expected to hold the hbalock when calling this routine.
97 lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe)
99 union lpfc_wqe *temp_wqe;
100 struct lpfc_register doorbell;
104 /* sanity check on queue memory */
107 temp_wqe = q->qe[q->host_index].wqe;
109 /* If the host has not yet processed the next entry then we are done */
110 idx = ((q->host_index + 1) % q->entry_count);
111 if (idx == q->hba_index) {
116 /* set consumption flag every once in a while */
117 if (!((q->host_index + 1) % q->entry_repost))
118 bf_set(wqe_wqec, &wqe->generic.wqe_com, 1);
120 bf_set(wqe_wqec, &wqe->generic.wqe_com, 0);
121 if (q->phba->sli3_options & LPFC_SLI4_PHWQ_ENABLED)
122 bf_set(wqe_wqid, &wqe->generic.wqe_com, q->queue_id);
123 lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size);
124 /* ensure WQE bcopy flushed before doorbell write */
127 /* Update the host index before invoking device */
128 host_index = q->host_index;
134 if (q->db_format == LPFC_DB_LIST_FORMAT) {
135 bf_set(lpfc_wq_db_list_fm_num_posted, &doorbell, 1);
136 bf_set(lpfc_wq_db_list_fm_index, &doorbell, host_index);
137 bf_set(lpfc_wq_db_list_fm_id, &doorbell, q->queue_id);
138 } else if (q->db_format == LPFC_DB_RING_FORMAT) {
139 bf_set(lpfc_wq_db_ring_fm_num_posted, &doorbell, 1);
140 bf_set(lpfc_wq_db_ring_fm_id, &doorbell, q->queue_id);
144 writel(doorbell.word0, q->db_regaddr);
150 * lpfc_sli4_wq_release - Updates internal hba index for WQ
151 * @q: The Work Queue to operate on.
152 * @index: The index to advance the hba index to.
154 * This routine will update the HBA index of a queue to reflect consumption of
155 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
156 * an entry the host calls this function to update the queue's internal
157 * pointers. This routine returns the number of entries that were consumed by
161 lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index)
163 uint32_t released = 0;
165 /* sanity check on queue memory */
169 if (q->hba_index == index)
172 q->hba_index = ((q->hba_index + 1) % q->entry_count);
174 } while (q->hba_index != index);
179 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
180 * @q: The Mailbox Queue to operate on.
181 * @wqe: The Mailbox Queue Entry to put on the Work queue.
183 * This routine will copy the contents of @mqe to the next available entry on
184 * the @q. This function will then ring the Work Queue Doorbell to signal the
185 * HBA to start processing the Work Queue Entry. This function returns 0 if
186 * successful. If no entries are available on @q then this function will return
188 * The caller is expected to hold the hbalock when calling this routine.
191 lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
193 struct lpfc_mqe *temp_mqe;
194 struct lpfc_register doorbell;
196 /* sanity check on queue memory */
199 temp_mqe = q->qe[q->host_index].mqe;
201 /* If the host has not yet processed the next entry then we are done */
202 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
204 lpfc_sli_pcimem_bcopy(mqe, temp_mqe, q->entry_size);
205 /* Save off the mailbox pointer for completion */
206 q->phba->mbox = (MAILBOX_t *)temp_mqe;
208 /* Update the host index before invoking device */
209 q->host_index = ((q->host_index + 1) % q->entry_count);
213 bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1);
214 bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id);
215 writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr);
220 * lpfc_sli4_mq_release - Updates internal hba index for MQ
221 * @q: The Mailbox Queue to operate on.
223 * This routine will update the HBA index of a queue to reflect consumption of
224 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
225 * an entry the host calls this function to update the queue's internal
226 * pointers. This routine returns the number of entries that were consumed by
230 lpfc_sli4_mq_release(struct lpfc_queue *q)
232 /* sanity check on queue memory */
236 /* Clear the mailbox pointer for completion */
237 q->phba->mbox = NULL;
238 q->hba_index = ((q->hba_index + 1) % q->entry_count);
243 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
244 * @q: The Event Queue to get the first valid EQE from
246 * This routine will get the first valid Event Queue Entry from @q, update
247 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
248 * the Queue (no more work to do), or the Queue is full of EQEs that have been
249 * processed, but not popped back to the HBA then this routine will return NULL.
251 static struct lpfc_eqe *
252 lpfc_sli4_eq_get(struct lpfc_queue *q)
254 struct lpfc_eqe *eqe;
257 /* sanity check on queue memory */
260 eqe = q->qe[q->hba_index].eqe;
262 /* If the next EQE is not valid then we are done */
263 if (!bf_get_le32(lpfc_eqe_valid, eqe))
265 /* If the host has not yet processed the next entry then we are done */
266 idx = ((q->hba_index + 1) % q->entry_count);
267 if (idx == q->host_index)
273 * insert barrier for instruction interlock : data from the hardware
274 * must have the valid bit checked before it can be copied and acted
275 * upon. Given what was seen in lpfc_sli4_cq_get() of speculative
276 * instructions allowing action on content before valid bit checked,
277 * add barrier here as well. May not be needed as "content" is a
278 * single 32-bit entity here (vs multi word structure for cq's).
285 * lpfc_sli4_eq_clr_intr - Turn off interrupts from this EQ
286 * @q: The Event Queue to disable interrupts
290 lpfc_sli4_eq_clr_intr(struct lpfc_queue *q)
292 struct lpfc_register doorbell;
295 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
296 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
297 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
298 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
299 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
300 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
304 * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
305 * @q: The Event Queue that the host has completed processing for.
306 * @arm: Indicates whether the host wants to arms this CQ.
308 * This routine will mark all Event Queue Entries on @q, from the last
309 * known completed entry to the last entry that was processed, as completed
310 * by clearing the valid bit for each completion queue entry. Then it will
311 * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
312 * The internal host index in the @q will be updated by this routine to indicate
313 * that the host has finished processing the entries. The @arm parameter
314 * indicates that the queue should be rearmed when ringing the doorbell.
316 * This function will return the number of EQEs that were popped.
319 lpfc_sli4_eq_release(struct lpfc_queue *q, bool arm)
321 uint32_t released = 0;
322 struct lpfc_eqe *temp_eqe;
323 struct lpfc_register doorbell;
325 /* sanity check on queue memory */
329 /* while there are valid entries */
330 while (q->hba_index != q->host_index) {
331 temp_eqe = q->qe[q->host_index].eqe;
332 bf_set_le32(lpfc_eqe_valid, temp_eqe, 0);
334 q->host_index = ((q->host_index + 1) % q->entry_count);
336 if (unlikely(released == 0 && !arm))
339 /* ring doorbell for number popped */
342 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
343 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
345 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
346 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
347 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
348 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
349 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
350 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
351 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
352 if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
353 readl(q->phba->sli4_hba.EQCQDBregaddr);
358 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
359 * @q: The Completion Queue to get the first valid CQE from
361 * This routine will get the first valid Completion Queue Entry from @q, update
362 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
363 * the Queue (no more work to do), or the Queue is full of CQEs that have been
364 * processed, but not popped back to the HBA then this routine will return NULL.
366 static struct lpfc_cqe *
367 lpfc_sli4_cq_get(struct lpfc_queue *q)
369 struct lpfc_cqe *cqe;
372 /* sanity check on queue memory */
376 /* If the next CQE is not valid then we are done */
377 if (!bf_get_le32(lpfc_cqe_valid, q->qe[q->hba_index].cqe))
379 /* If the host has not yet processed the next entry then we are done */
380 idx = ((q->hba_index + 1) % q->entry_count);
381 if (idx == q->host_index)
384 cqe = q->qe[q->hba_index].cqe;
388 * insert barrier for instruction interlock : data from the hardware
389 * must have the valid bit checked before it can be copied and acted
390 * upon. Speculative instructions were allowing a bcopy at the start
391 * of lpfc_sli4_fp_handle_wcqe(), which is called immediately
392 * after our return, to copy data before the valid bit check above
393 * was done. As such, some of the copied data was stale. The barrier
394 * ensures the check is before any data is copied.
401 * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ
402 * @q: The Completion Queue that the host has completed processing for.
403 * @arm: Indicates whether the host wants to arms this CQ.
405 * This routine will mark all Completion queue entries on @q, from the last
406 * known completed entry to the last entry that was processed, as completed
407 * by clearing the valid bit for each completion queue entry. Then it will
408 * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
409 * The internal host index in the @q will be updated by this routine to indicate
410 * that the host has finished processing the entries. The @arm parameter
411 * indicates that the queue should be rearmed when ringing the doorbell.
413 * This function will return the number of CQEs that were released.
416 lpfc_sli4_cq_release(struct lpfc_queue *q, bool arm)
418 uint32_t released = 0;
419 struct lpfc_cqe *temp_qe;
420 struct lpfc_register doorbell;
422 /* sanity check on queue memory */
425 /* while there are valid entries */
426 while (q->hba_index != q->host_index) {
427 temp_qe = q->qe[q->host_index].cqe;
428 bf_set_le32(lpfc_cqe_valid, temp_qe, 0);
430 q->host_index = ((q->host_index + 1) % q->entry_count);
432 if (unlikely(released == 0 && !arm))
435 /* ring doorbell for number popped */
438 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
439 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
440 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION);
441 bf_set(lpfc_eqcq_doorbell_cqid_hi, &doorbell,
442 (q->queue_id >> LPFC_CQID_HI_FIELD_SHIFT));
443 bf_set(lpfc_eqcq_doorbell_cqid_lo, &doorbell, q->queue_id);
444 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
449 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
450 * @q: The Header Receive Queue to operate on.
451 * @wqe: The Receive Queue Entry to put on the Receive queue.
453 * This routine will copy the contents of @wqe to the next available entry on
454 * the @q. This function will then ring the Receive Queue Doorbell to signal the
455 * HBA to start processing the Receive Queue Entry. This function returns the
456 * index that the rqe was copied to if successful. If no entries are available
457 * on @q then this function will return -ENOMEM.
458 * The caller is expected to hold the hbalock when calling this routine.
461 lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
462 struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe)
464 struct lpfc_rqe *temp_hrqe;
465 struct lpfc_rqe *temp_drqe;
466 struct lpfc_register doorbell;
469 /* sanity check on queue memory */
470 if (unlikely(!hq) || unlikely(!dq))
472 put_index = hq->host_index;
473 temp_hrqe = hq->qe[hq->host_index].rqe;
474 temp_drqe = dq->qe[dq->host_index].rqe;
476 if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ)
478 if (hq->host_index != dq->host_index)
480 /* If the host has not yet processed the next entry then we are done */
481 if (((hq->host_index + 1) % hq->entry_count) == hq->hba_index)
483 lpfc_sli_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size);
484 lpfc_sli_pcimem_bcopy(drqe, temp_drqe, dq->entry_size);
486 /* Update the host index to point to the next slot */
487 hq->host_index = ((hq->host_index + 1) % hq->entry_count);
488 dq->host_index = ((dq->host_index + 1) % dq->entry_count);
490 /* Ring The Header Receive Queue Doorbell */
491 if (!(hq->host_index % hq->entry_repost)) {
493 if (hq->db_format == LPFC_DB_RING_FORMAT) {
494 bf_set(lpfc_rq_db_ring_fm_num_posted, &doorbell,
496 bf_set(lpfc_rq_db_ring_fm_id, &doorbell, hq->queue_id);
497 } else if (hq->db_format == LPFC_DB_LIST_FORMAT) {
498 bf_set(lpfc_rq_db_list_fm_num_posted, &doorbell,
500 bf_set(lpfc_rq_db_list_fm_index, &doorbell,
502 bf_set(lpfc_rq_db_list_fm_id, &doorbell, hq->queue_id);
506 writel(doorbell.word0, hq->db_regaddr);
512 * lpfc_sli4_rq_release - Updates internal hba index for RQ
513 * @q: The Header Receive Queue to operate on.
515 * This routine will update the HBA index of a queue to reflect consumption of
516 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
517 * consumed an entry the host calls this function to update the queue's
518 * internal pointers. This routine returns the number of entries that were
519 * consumed by the HBA.
522 lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq)
524 /* sanity check on queue memory */
525 if (unlikely(!hq) || unlikely(!dq))
528 if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ))
530 hq->hba_index = ((hq->hba_index + 1) % hq->entry_count);
531 dq->hba_index = ((dq->hba_index + 1) % dq->entry_count);
536 * lpfc_cmd_iocb - Get next command iocb entry in the ring
537 * @phba: Pointer to HBA context object.
538 * @pring: Pointer to driver SLI ring object.
540 * This function returns pointer to next command iocb entry
541 * in the command ring. The caller must hold hbalock to prevent
542 * other threads consume the next command iocb.
543 * SLI-2/SLI-3 provide different sized iocbs.
545 static inline IOCB_t *
546 lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
548 return (IOCB_t *) (((char *) pring->sli.sli3.cmdringaddr) +
549 pring->sli.sli3.cmdidx * phba->iocb_cmd_size);
553 * lpfc_resp_iocb - Get next response iocb entry in the ring
554 * @phba: Pointer to HBA context object.
555 * @pring: Pointer to driver SLI ring object.
557 * This function returns pointer to next response iocb entry
558 * in the response ring. The caller must hold hbalock to make sure
559 * that no other thread consume the next response iocb.
560 * SLI-2/SLI-3 provide different sized iocbs.
562 static inline IOCB_t *
563 lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
565 return (IOCB_t *) (((char *) pring->sli.sli3.rspringaddr) +
566 pring->sli.sli3.rspidx * phba->iocb_rsp_size);
570 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
571 * @phba: Pointer to HBA context object.
573 * This function is called with hbalock held. This function
574 * allocates a new driver iocb object from the iocb pool. If the
575 * allocation is successful, it returns pointer to the newly
576 * allocated iocb object else it returns NULL.
579 __lpfc_sli_get_iocbq(struct lpfc_hba *phba)
581 struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
582 struct lpfc_iocbq * iocbq = NULL;
584 lockdep_assert_held(&phba->hbalock);
586 list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
589 if (phba->iocb_cnt > phba->iocb_max)
590 phba->iocb_max = phba->iocb_cnt;
595 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
596 * @phba: Pointer to HBA context object.
597 * @xritag: XRI value.
599 * This function clears the sglq pointer from the array of acive
600 * sglq's. The xritag that is passed in is used to index into the
601 * array. Before the xritag can be used it needs to be adjusted
602 * by subtracting the xribase.
604 * Returns sglq ponter = success, NULL = Failure.
606 static struct lpfc_sglq *
607 __lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
609 struct lpfc_sglq *sglq;
611 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
612 phba->sli4_hba.lpfc_sglq_active_list[xritag] = NULL;
617 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
618 * @phba: Pointer to HBA context object.
619 * @xritag: XRI value.
621 * This function returns the sglq pointer from the array of acive
622 * sglq's. The xritag that is passed in is used to index into the
623 * array. Before the xritag can be used it needs to be adjusted
624 * by subtracting the xribase.
626 * Returns sglq ponter = success, NULL = Failure.
629 __lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
631 struct lpfc_sglq *sglq;
633 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
638 * lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
639 * @phba: Pointer to HBA context object.
640 * @xritag: xri used in this exchange.
641 * @rrq: The RRQ to be cleared.
645 lpfc_clr_rrq_active(struct lpfc_hba *phba,
647 struct lpfc_node_rrq *rrq)
649 struct lpfc_nodelist *ndlp = NULL;
651 if ((rrq->vport) && NLP_CHK_NODE_ACT(rrq->ndlp))
652 ndlp = lpfc_findnode_did(rrq->vport, rrq->nlp_DID);
654 /* The target DID could have been swapped (cable swap)
655 * we should use the ndlp from the findnode if it is
658 if ((!ndlp) && rrq->ndlp)
664 if (test_and_clear_bit(xritag, ndlp->active_rrqs_xri_bitmap)) {
667 rrq->rrq_stop_time = 0;
670 mempool_free(rrq, phba->rrq_pool);
674 * lpfc_handle_rrq_active - Checks if RRQ has waithed RATOV.
675 * @phba: Pointer to HBA context object.
677 * This function is called with hbalock held. This function
678 * Checks if stop_time (ratov from setting rrq active) has
679 * been reached, if it has and the send_rrq flag is set then
680 * it will call lpfc_send_rrq. If the send_rrq flag is not set
681 * then it will just call the routine to clear the rrq and
682 * free the rrq resource.
683 * The timer is set to the next rrq that is going to expire before
684 * leaving the routine.
688 lpfc_handle_rrq_active(struct lpfc_hba *phba)
690 struct lpfc_node_rrq *rrq;
691 struct lpfc_node_rrq *nextrrq;
692 unsigned long next_time;
693 unsigned long iflags;
696 spin_lock_irqsave(&phba->hbalock, iflags);
697 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
698 next_time = jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
699 list_for_each_entry_safe(rrq, nextrrq,
700 &phba->active_rrq_list, list) {
701 if (time_after(jiffies, rrq->rrq_stop_time))
702 list_move(&rrq->list, &send_rrq);
703 else if (time_before(rrq->rrq_stop_time, next_time))
704 next_time = rrq->rrq_stop_time;
706 spin_unlock_irqrestore(&phba->hbalock, iflags);
707 if ((!list_empty(&phba->active_rrq_list)) &&
708 (!(phba->pport->load_flag & FC_UNLOADING)))
709 mod_timer(&phba->rrq_tmr, next_time);
710 list_for_each_entry_safe(rrq, nextrrq, &send_rrq, list) {
711 list_del(&rrq->list);
713 /* this call will free the rrq */
714 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
715 else if (lpfc_send_rrq(phba, rrq)) {
716 /* if we send the rrq then the completion handler
717 * will clear the bit in the xribitmap.
719 lpfc_clr_rrq_active(phba, rrq->xritag,
726 * lpfc_get_active_rrq - Get the active RRQ for this exchange.
727 * @vport: Pointer to vport context object.
728 * @xri: The xri used in the exchange.
729 * @did: The targets DID for this exchange.
731 * returns NULL = rrq not found in the phba->active_rrq_list.
732 * rrq = rrq for this xri and target.
734 struct lpfc_node_rrq *
735 lpfc_get_active_rrq(struct lpfc_vport *vport, uint16_t xri, uint32_t did)
737 struct lpfc_hba *phba = vport->phba;
738 struct lpfc_node_rrq *rrq;
739 struct lpfc_node_rrq *nextrrq;
740 unsigned long iflags;
742 if (phba->sli_rev != LPFC_SLI_REV4)
744 spin_lock_irqsave(&phba->hbalock, iflags);
745 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) {
746 if (rrq->vport == vport && rrq->xritag == xri &&
747 rrq->nlp_DID == did){
748 list_del(&rrq->list);
749 spin_unlock_irqrestore(&phba->hbalock, iflags);
753 spin_unlock_irqrestore(&phba->hbalock, iflags);
758 * lpfc_cleanup_vports_rrqs - Remove and clear the active RRQ for this vport.
759 * @vport: Pointer to vport context object.
760 * @ndlp: Pointer to the lpfc_node_list structure.
761 * If ndlp is NULL Remove all active RRQs for this vport from the
762 * phba->active_rrq_list and clear the rrq.
763 * If ndlp is not NULL then only remove rrqs for this vport & this ndlp.
766 lpfc_cleanup_vports_rrqs(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
769 struct lpfc_hba *phba = vport->phba;
770 struct lpfc_node_rrq *rrq;
771 struct lpfc_node_rrq *nextrrq;
772 unsigned long iflags;
775 if (phba->sli_rev != LPFC_SLI_REV4)
778 lpfc_sli4_vport_delete_els_xri_aborted(vport);
779 lpfc_sli4_vport_delete_fcp_xri_aborted(vport);
781 spin_lock_irqsave(&phba->hbalock, iflags);
782 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list)
783 if ((rrq->vport == vport) && (!ndlp || rrq->ndlp == ndlp))
784 list_move(&rrq->list, &rrq_list);
785 spin_unlock_irqrestore(&phba->hbalock, iflags);
787 list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
788 list_del(&rrq->list);
789 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
794 * lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
795 * @phba: Pointer to HBA context object.
796 * @ndlp: Targets nodelist pointer for this exchange.
797 * @xritag the xri in the bitmap to test.
799 * This function is called with hbalock held. This function
800 * returns 0 = rrq not active for this xri
801 * 1 = rrq is valid for this xri.
804 lpfc_test_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
807 lockdep_assert_held(&phba->hbalock);
810 if (!ndlp->active_rrqs_xri_bitmap)
812 if (test_bit(xritag, ndlp->active_rrqs_xri_bitmap))
819 * lpfc_set_rrq_active - set RRQ active bit in xri_bitmap.
820 * @phba: Pointer to HBA context object.
821 * @ndlp: nodelist pointer for this target.
822 * @xritag: xri used in this exchange.
823 * @rxid: Remote Exchange ID.
824 * @send_rrq: Flag used to determine if we should send rrq els cmd.
826 * This function takes the hbalock.
827 * The active bit is always set in the active rrq xri_bitmap even
828 * if there is no slot avaiable for the other rrq information.
830 * returns 0 rrq actived for this xri
831 * < 0 No memory or invalid ndlp.
834 lpfc_set_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
835 uint16_t xritag, uint16_t rxid, uint16_t send_rrq)
837 unsigned long iflags;
838 struct lpfc_node_rrq *rrq;
844 if (!phba->cfg_enable_rrq)
847 spin_lock_irqsave(&phba->hbalock, iflags);
848 if (phba->pport->load_flag & FC_UNLOADING) {
849 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
854 * set the active bit even if there is no mem available.
856 if (NLP_CHK_FREE_REQ(ndlp))
859 if (ndlp->vport && (ndlp->vport->load_flag & FC_UNLOADING))
862 if (!ndlp->active_rrqs_xri_bitmap)
865 if (test_and_set_bit(xritag, ndlp->active_rrqs_xri_bitmap))
868 spin_unlock_irqrestore(&phba->hbalock, iflags);
869 rrq = mempool_alloc(phba->rrq_pool, GFP_KERNEL);
871 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
872 "3155 Unable to allocate RRQ xri:0x%x rxid:0x%x"
873 " DID:0x%x Send:%d\n",
874 xritag, rxid, ndlp->nlp_DID, send_rrq);
877 if (phba->cfg_enable_rrq == 1)
878 rrq->send_rrq = send_rrq;
881 rrq->xritag = xritag;
882 rrq->rrq_stop_time = jiffies +
883 msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
885 rrq->nlp_DID = ndlp->nlp_DID;
886 rrq->vport = ndlp->vport;
888 spin_lock_irqsave(&phba->hbalock, iflags);
889 empty = list_empty(&phba->active_rrq_list);
890 list_add_tail(&rrq->list, &phba->active_rrq_list);
891 phba->hba_flag |= HBA_RRQ_ACTIVE;
893 lpfc_worker_wake_up(phba);
894 spin_unlock_irqrestore(&phba->hbalock, iflags);
897 spin_unlock_irqrestore(&phba->hbalock, iflags);
898 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
899 "2921 Can't set rrq active xri:0x%x rxid:0x%x"
900 " DID:0x%x Send:%d\n",
901 xritag, rxid, ndlp->nlp_DID, send_rrq);
906 * __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool
907 * @phba: Pointer to HBA context object.
908 * @piocb: Pointer to the iocbq.
910 * This function is called with the ring lock held. This function
911 * gets a new driver sglq object from the sglq list. If the
912 * list is not empty then it is successful, it returns pointer to the newly
913 * allocated sglq object else it returns NULL.
915 static struct lpfc_sglq *
916 __lpfc_sli_get_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
918 struct list_head *lpfc_sgl_list = &phba->sli4_hba.lpfc_sgl_list;
919 struct lpfc_sglq *sglq = NULL;
920 struct lpfc_sglq *start_sglq = NULL;
921 struct lpfc_scsi_buf *lpfc_cmd;
922 struct lpfc_nodelist *ndlp;
925 lockdep_assert_held(&phba->hbalock);
927 if (piocbq->iocb_flag & LPFC_IO_FCP) {
928 lpfc_cmd = (struct lpfc_scsi_buf *) piocbq->context1;
929 ndlp = lpfc_cmd->rdata->pnode;
930 } else if ((piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) &&
931 !(piocbq->iocb_flag & LPFC_IO_LIBDFC)) {
932 ndlp = piocbq->context_un.ndlp;
933 } else if (piocbq->iocb_flag & LPFC_IO_LIBDFC) {
934 if (piocbq->iocb_flag & LPFC_IO_LOOPBACK)
937 ndlp = piocbq->context_un.ndlp;
939 ndlp = piocbq->context1;
942 list_remove_head(lpfc_sgl_list, sglq, struct lpfc_sglq, list);
947 if (lpfc_test_rrq_active(phba, ndlp, sglq->sli4_lxritag)) {
948 /* This xri has an rrq outstanding for this DID.
949 * put it back in the list and get another xri.
951 list_add_tail(&sglq->list, lpfc_sgl_list);
953 list_remove_head(lpfc_sgl_list, sglq,
954 struct lpfc_sglq, list);
955 if (sglq == start_sglq) {
963 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
964 sglq->state = SGL_ALLOCATED;
970 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
971 * @phba: Pointer to HBA context object.
973 * This function is called with no lock held. This function
974 * allocates a new driver iocb object from the iocb pool. If the
975 * allocation is successful, it returns pointer to the newly
976 * allocated iocb object else it returns NULL.
979 lpfc_sli_get_iocbq(struct lpfc_hba *phba)
981 struct lpfc_iocbq * iocbq = NULL;
982 unsigned long iflags;
984 spin_lock_irqsave(&phba->hbalock, iflags);
985 iocbq = __lpfc_sli_get_iocbq(phba);
986 spin_unlock_irqrestore(&phba->hbalock, iflags);
991 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
992 * @phba: Pointer to HBA context object.
993 * @iocbq: Pointer to driver iocb object.
995 * This function is called with hbalock held to release driver
996 * iocb object to the iocb pool. The iotag in the iocb object
997 * does not change for each use of the iocb object. This function
998 * clears all other fields of the iocb object when it is freed.
999 * The sqlq structure that holds the xritag and phys and virtual
1000 * mappings for the scatter gather list is retrieved from the
1001 * active array of sglq. The get of the sglq pointer also clears
1002 * the entry in the array. If the status of the IO indiactes that
1003 * this IO was aborted then the sglq entry it put on the
1004 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
1005 * IO has good status or fails for any other reason then the sglq
1006 * entry is added to the free list (lpfc_sgl_list).
1009 __lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1011 struct lpfc_sglq *sglq;
1012 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1013 unsigned long iflag = 0;
1014 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
1016 lockdep_assert_held(&phba->hbalock);
1018 if (iocbq->sli4_xritag == NO_XRI)
1021 sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_lxritag);
1025 if ((iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) &&
1026 (sglq->state != SGL_XRI_ABORTED)) {
1027 spin_lock_irqsave(&phba->sli4_hba.abts_sgl_list_lock,
1029 list_add(&sglq->list,
1030 &phba->sli4_hba.lpfc_abts_els_sgl_list);
1031 spin_unlock_irqrestore(
1032 &phba->sli4_hba.abts_sgl_list_lock, iflag);
1034 spin_lock_irqsave(&pring->ring_lock, iflag);
1035 sglq->state = SGL_FREED;
1037 list_add_tail(&sglq->list,
1038 &phba->sli4_hba.lpfc_sgl_list);
1039 spin_unlock_irqrestore(&pring->ring_lock, iflag);
1041 /* Check if TXQ queue needs to be serviced */
1042 if (!list_empty(&pring->txq))
1043 lpfc_worker_wake_up(phba);
1049 * Clean all volatile data fields, preserve iotag and node struct.
1051 memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1052 iocbq->sli4_lxritag = NO_XRI;
1053 iocbq->sli4_xritag = NO_XRI;
1054 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1059 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
1060 * @phba: Pointer to HBA context object.
1061 * @iocbq: Pointer to driver iocb object.
1063 * This function is called with hbalock held to release driver
1064 * iocb object to the iocb pool. The iotag in the iocb object
1065 * does not change for each use of the iocb object. This function
1066 * clears all other fields of the iocb object when it is freed.
1069 __lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1071 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1073 lockdep_assert_held(&phba->hbalock);
1076 * Clean all volatile data fields, preserve iotag and node struct.
1078 memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1079 iocbq->sli4_xritag = NO_XRI;
1080 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1084 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
1085 * @phba: Pointer to HBA context object.
1086 * @iocbq: Pointer to driver iocb object.
1088 * This function is called with hbalock held to release driver
1089 * iocb object to the iocb pool. The iotag in the iocb object
1090 * does not change for each use of the iocb object. This function
1091 * clears all other fields of the iocb object when it is freed.
1094 __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1096 lockdep_assert_held(&phba->hbalock);
1098 phba->__lpfc_sli_release_iocbq(phba, iocbq);
1103 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
1104 * @phba: Pointer to HBA context object.
1105 * @iocbq: Pointer to driver iocb object.
1107 * This function is called with no lock held to release the iocb to
1111 lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1113 unsigned long iflags;
1116 * Clean all volatile data fields, preserve iotag and node struct.
1118 spin_lock_irqsave(&phba->hbalock, iflags);
1119 __lpfc_sli_release_iocbq(phba, iocbq);
1120 spin_unlock_irqrestore(&phba->hbalock, iflags);
1124 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
1125 * @phba: Pointer to HBA context object.
1126 * @iocblist: List of IOCBs.
1127 * @ulpstatus: ULP status in IOCB command field.
1128 * @ulpWord4: ULP word-4 in IOCB command field.
1130 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
1131 * on the list by invoking the complete callback function associated with the
1132 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
1136 lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
1137 uint32_t ulpstatus, uint32_t ulpWord4)
1139 struct lpfc_iocbq *piocb;
1141 while (!list_empty(iocblist)) {
1142 list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
1143 if (!piocb->iocb_cmpl)
1144 lpfc_sli_release_iocbq(phba, piocb);
1146 piocb->iocb.ulpStatus = ulpstatus;
1147 piocb->iocb.un.ulpWord[4] = ulpWord4;
1148 (piocb->iocb_cmpl) (phba, piocb, piocb);
1155 * lpfc_sli_iocb_cmd_type - Get the iocb type
1156 * @iocb_cmnd: iocb command code.
1158 * This function is called by ring event handler function to get the iocb type.
1159 * This function translates the iocb command to an iocb command type used to
1160 * decide the final disposition of each completed IOCB.
1161 * The function returns
1162 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
1163 * LPFC_SOL_IOCB if it is a solicited iocb completion
1164 * LPFC_ABORT_IOCB if it is an abort iocb
1165 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
1167 * The caller is not required to hold any lock.
1169 static lpfc_iocb_type
1170 lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
1172 lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
1174 if (iocb_cmnd > CMD_MAX_IOCB_CMD)
1177 switch (iocb_cmnd) {
1178 case CMD_XMIT_SEQUENCE_CR:
1179 case CMD_XMIT_SEQUENCE_CX:
1180 case CMD_XMIT_BCAST_CN:
1181 case CMD_XMIT_BCAST_CX:
1182 case CMD_ELS_REQUEST_CR:
1183 case CMD_ELS_REQUEST_CX:
1184 case CMD_CREATE_XRI_CR:
1185 case CMD_CREATE_XRI_CX:
1186 case CMD_GET_RPI_CN:
1187 case CMD_XMIT_ELS_RSP_CX:
1188 case CMD_GET_RPI_CR:
1189 case CMD_FCP_IWRITE_CR:
1190 case CMD_FCP_IWRITE_CX:
1191 case CMD_FCP_IREAD_CR:
1192 case CMD_FCP_IREAD_CX:
1193 case CMD_FCP_ICMND_CR:
1194 case CMD_FCP_ICMND_CX:
1195 case CMD_FCP_TSEND_CX:
1196 case CMD_FCP_TRSP_CX:
1197 case CMD_FCP_TRECEIVE_CX:
1198 case CMD_FCP_AUTO_TRSP_CX:
1199 case CMD_ADAPTER_MSG:
1200 case CMD_ADAPTER_DUMP:
1201 case CMD_XMIT_SEQUENCE64_CR:
1202 case CMD_XMIT_SEQUENCE64_CX:
1203 case CMD_XMIT_BCAST64_CN:
1204 case CMD_XMIT_BCAST64_CX:
1205 case CMD_ELS_REQUEST64_CR:
1206 case CMD_ELS_REQUEST64_CX:
1207 case CMD_FCP_IWRITE64_CR:
1208 case CMD_FCP_IWRITE64_CX:
1209 case CMD_FCP_IREAD64_CR:
1210 case CMD_FCP_IREAD64_CX:
1211 case CMD_FCP_ICMND64_CR:
1212 case CMD_FCP_ICMND64_CX:
1213 case CMD_FCP_TSEND64_CX:
1214 case CMD_FCP_TRSP64_CX:
1215 case CMD_FCP_TRECEIVE64_CX:
1216 case CMD_GEN_REQUEST64_CR:
1217 case CMD_GEN_REQUEST64_CX:
1218 case CMD_XMIT_ELS_RSP64_CX:
1219 case DSSCMD_IWRITE64_CR:
1220 case DSSCMD_IWRITE64_CX:
1221 case DSSCMD_IREAD64_CR:
1222 case DSSCMD_IREAD64_CX:
1223 type = LPFC_SOL_IOCB;
1225 case CMD_ABORT_XRI_CN:
1226 case CMD_ABORT_XRI_CX:
1227 case CMD_CLOSE_XRI_CN:
1228 case CMD_CLOSE_XRI_CX:
1229 case CMD_XRI_ABORTED_CX:
1230 case CMD_ABORT_MXRI64_CN:
1231 case CMD_XMIT_BLS_RSP64_CX:
1232 type = LPFC_ABORT_IOCB;
1234 case CMD_RCV_SEQUENCE_CX:
1235 case CMD_RCV_ELS_REQ_CX:
1236 case CMD_RCV_SEQUENCE64_CX:
1237 case CMD_RCV_ELS_REQ64_CX:
1238 case CMD_ASYNC_STATUS:
1239 case CMD_IOCB_RCV_SEQ64_CX:
1240 case CMD_IOCB_RCV_ELS64_CX:
1241 case CMD_IOCB_RCV_CONT64_CX:
1242 case CMD_IOCB_RET_XRI64_CX:
1243 type = LPFC_UNSOL_IOCB;
1245 case CMD_IOCB_XMIT_MSEQ64_CR:
1246 case CMD_IOCB_XMIT_MSEQ64_CX:
1247 case CMD_IOCB_RCV_SEQ_LIST64_CX:
1248 case CMD_IOCB_RCV_ELS_LIST64_CX:
1249 case CMD_IOCB_CLOSE_EXTENDED_CN:
1250 case CMD_IOCB_ABORT_EXTENDED_CN:
1251 case CMD_IOCB_RET_HBQE64_CN:
1252 case CMD_IOCB_FCP_IBIDIR64_CR:
1253 case CMD_IOCB_FCP_IBIDIR64_CX:
1254 case CMD_IOCB_FCP_ITASKMGT64_CX:
1255 case CMD_IOCB_LOGENTRY_CN:
1256 case CMD_IOCB_LOGENTRY_ASYNC_CN:
1257 printk("%s - Unhandled SLI-3 Command x%x\n",
1258 __func__, iocb_cmnd);
1259 type = LPFC_UNKNOWN_IOCB;
1262 type = LPFC_UNKNOWN_IOCB;
1270 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
1271 * @phba: Pointer to HBA context object.
1273 * This function is called from SLI initialization code
1274 * to configure every ring of the HBA's SLI interface. The
1275 * caller is not required to hold any lock. This function issues
1276 * a config_ring mailbox command for each ring.
1277 * This function returns zero if successful else returns a negative
1281 lpfc_sli_ring_map(struct lpfc_hba *phba)
1283 struct lpfc_sli *psli = &phba->sli;
1288 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1292 phba->link_state = LPFC_INIT_MBX_CMDS;
1293 for (i = 0; i < psli->num_rings; i++) {
1294 lpfc_config_ring(phba, i, pmb);
1295 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
1296 if (rc != MBX_SUCCESS) {
1297 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1298 "0446 Adapter failed to init (%d), "
1299 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
1301 rc, pmbox->mbxCommand,
1302 pmbox->mbxStatus, i);
1303 phba->link_state = LPFC_HBA_ERROR;
1308 mempool_free(pmb, phba->mbox_mem_pool);
1313 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
1314 * @phba: Pointer to HBA context object.
1315 * @pring: Pointer to driver SLI ring object.
1316 * @piocb: Pointer to the driver iocb object.
1318 * This function is called with hbalock held. The function adds the
1319 * new iocb to txcmplq of the given ring. This function always returns
1320 * 0. If this function is called for ELS ring, this function checks if
1321 * there is a vport associated with the ELS command. This function also
1322 * starts els_tmofunc timer if this is an ELS command.
1325 lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1326 struct lpfc_iocbq *piocb)
1328 lockdep_assert_held(&phba->hbalock);
1332 list_add_tail(&piocb->list, &pring->txcmplq);
1333 piocb->iocb_flag |= LPFC_IO_ON_TXCMPLQ;
1335 if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
1336 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
1337 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
1338 BUG_ON(!piocb->vport);
1339 if (!(piocb->vport->load_flag & FC_UNLOADING))
1340 mod_timer(&piocb->vport->els_tmofunc,
1342 msecs_to_jiffies(1000 * (phba->fc_ratov << 1)));
1349 * lpfc_sli_ringtx_get - Get first element of the txq
1350 * @phba: Pointer to HBA context object.
1351 * @pring: Pointer to driver SLI ring object.
1353 * This function is called with hbalock held to get next
1354 * iocb in txq of the given ring. If there is any iocb in
1355 * the txq, the function returns first iocb in the list after
1356 * removing the iocb from the list, else it returns NULL.
1359 lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1361 struct lpfc_iocbq *cmd_iocb;
1363 lockdep_assert_held(&phba->hbalock);
1365 list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
1370 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
1371 * @phba: Pointer to HBA context object.
1372 * @pring: Pointer to driver SLI ring object.
1374 * This function is called with hbalock held and the caller must post the
1375 * iocb without releasing the lock. If the caller releases the lock,
1376 * iocb slot returned by the function is not guaranteed to be available.
1377 * The function returns pointer to the next available iocb slot if there
1378 * is available slot in the ring, else it returns NULL.
1379 * If the get index of the ring is ahead of the put index, the function
1380 * will post an error attention event to the worker thread to take the
1381 * HBA to offline state.
1384 lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1386 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
1387 uint32_t max_cmd_idx = pring->sli.sli3.numCiocb;
1389 lockdep_assert_held(&phba->hbalock);
1391 if ((pring->sli.sli3.next_cmdidx == pring->sli.sli3.cmdidx) &&
1392 (++pring->sli.sli3.next_cmdidx >= max_cmd_idx))
1393 pring->sli.sli3.next_cmdidx = 0;
1395 if (unlikely(pring->sli.sli3.local_getidx ==
1396 pring->sli.sli3.next_cmdidx)) {
1398 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
1400 if (unlikely(pring->sli.sli3.local_getidx >= max_cmd_idx)) {
1401 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1402 "0315 Ring %d issue: portCmdGet %d "
1403 "is bigger than cmd ring %d\n",
1405 pring->sli.sli3.local_getidx,
1408 phba->link_state = LPFC_HBA_ERROR;
1410 * All error attention handlers are posted to
1413 phba->work_ha |= HA_ERATT;
1414 phba->work_hs = HS_FFER3;
1416 lpfc_worker_wake_up(phba);
1421 if (pring->sli.sli3.local_getidx == pring->sli.sli3.next_cmdidx)
1425 return lpfc_cmd_iocb(phba, pring);
1429 * lpfc_sli_next_iotag - Get an iotag for the iocb
1430 * @phba: Pointer to HBA context object.
1431 * @iocbq: Pointer to driver iocb object.
1433 * This function gets an iotag for the iocb. If there is no unused iotag and
1434 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
1435 * array and assigns a new iotag.
1436 * The function returns the allocated iotag if successful, else returns zero.
1437 * Zero is not a valid iotag.
1438 * The caller is not required to hold any lock.
1441 lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1443 struct lpfc_iocbq **new_arr;
1444 struct lpfc_iocbq **old_arr;
1446 struct lpfc_sli *psli = &phba->sli;
1449 spin_lock_irq(&phba->hbalock);
1450 iotag = psli->last_iotag;
1451 if(++iotag < psli->iocbq_lookup_len) {
1452 psli->last_iotag = iotag;
1453 psli->iocbq_lookup[iotag] = iocbq;
1454 spin_unlock_irq(&phba->hbalock);
1455 iocbq->iotag = iotag;
1457 } else if (psli->iocbq_lookup_len < (0xffff
1458 - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
1459 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
1460 spin_unlock_irq(&phba->hbalock);
1461 new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *),
1464 spin_lock_irq(&phba->hbalock);
1465 old_arr = psli->iocbq_lookup;
1466 if (new_len <= psli->iocbq_lookup_len) {
1467 /* highly unprobable case */
1469 iotag = psli->last_iotag;
1470 if(++iotag < psli->iocbq_lookup_len) {
1471 psli->last_iotag = iotag;
1472 psli->iocbq_lookup[iotag] = iocbq;
1473 spin_unlock_irq(&phba->hbalock);
1474 iocbq->iotag = iotag;
1477 spin_unlock_irq(&phba->hbalock);
1480 if (psli->iocbq_lookup)
1481 memcpy(new_arr, old_arr,
1482 ((psli->last_iotag + 1) *
1483 sizeof (struct lpfc_iocbq *)));
1484 psli->iocbq_lookup = new_arr;
1485 psli->iocbq_lookup_len = new_len;
1486 psli->last_iotag = iotag;
1487 psli->iocbq_lookup[iotag] = iocbq;
1488 spin_unlock_irq(&phba->hbalock);
1489 iocbq->iotag = iotag;
1494 spin_unlock_irq(&phba->hbalock);
1496 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
1497 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1504 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
1505 * @phba: Pointer to HBA context object.
1506 * @pring: Pointer to driver SLI ring object.
1507 * @iocb: Pointer to iocb slot in the ring.
1508 * @nextiocb: Pointer to driver iocb object which need to be
1509 * posted to firmware.
1511 * This function is called with hbalock held to post a new iocb to
1512 * the firmware. This function copies the new iocb to ring iocb slot and
1513 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1514 * a completion call back for this iocb else the function will free the
1518 lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1519 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
1521 lockdep_assert_held(&phba->hbalock);
1525 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
1528 if (pring->ringno == LPFC_ELS_RING) {
1529 lpfc_debugfs_slow_ring_trc(phba,
1530 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1531 *(((uint32_t *) &nextiocb->iocb) + 4),
1532 *(((uint32_t *) &nextiocb->iocb) + 6),
1533 *(((uint32_t *) &nextiocb->iocb) + 7));
1537 * Issue iocb command to adapter
1539 lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
1541 pring->stats.iocb_cmd++;
1544 * If there is no completion routine to call, we can release the
1545 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1546 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1548 if (nextiocb->iocb_cmpl)
1549 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
1551 __lpfc_sli_release_iocbq(phba, nextiocb);
1554 * Let the HBA know what IOCB slot will be the next one the
1555 * driver will put a command into.
1557 pring->sli.sli3.cmdidx = pring->sli.sli3.next_cmdidx;
1558 writel(pring->sli.sli3.cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
1562 * lpfc_sli_update_full_ring - Update the chip attention register
1563 * @phba: Pointer to HBA context object.
1564 * @pring: Pointer to driver SLI ring object.
1566 * The caller is not required to hold any lock for calling this function.
1567 * This function updates the chip attention bits for the ring to inform firmware
1568 * that there are pending work to be done for this ring and requests an
1569 * interrupt when there is space available in the ring. This function is
1570 * called when the driver is unable to post more iocbs to the ring due
1571 * to unavailability of space in the ring.
1574 lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1576 int ringno = pring->ringno;
1578 pring->flag |= LPFC_CALL_RING_AVAILABLE;
1583 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1584 * The HBA will tell us when an IOCB entry is available.
1586 writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
1587 readl(phba->CAregaddr); /* flush */
1589 pring->stats.iocb_cmd_full++;
1593 * lpfc_sli_update_ring - Update chip attention register
1594 * @phba: Pointer to HBA context object.
1595 * @pring: Pointer to driver SLI ring object.
1597 * This function updates the chip attention register bit for the
1598 * given ring to inform HBA that there is more work to be done
1599 * in this ring. The caller is not required to hold any lock.
1602 lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1604 int ringno = pring->ringno;
1607 * Tell the HBA that there is work to do in this ring.
1609 if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
1611 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
1612 readl(phba->CAregaddr); /* flush */
1617 * lpfc_sli_resume_iocb - Process iocbs in the txq
1618 * @phba: Pointer to HBA context object.
1619 * @pring: Pointer to driver SLI ring object.
1621 * This function is called with hbalock held to post pending iocbs
1622 * in the txq to the firmware. This function is called when driver
1623 * detects space available in the ring.
1626 lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1629 struct lpfc_iocbq *nextiocb;
1631 lockdep_assert_held(&phba->hbalock);
1635 * (a) there is anything on the txq to send
1637 * (c) link attention events can be processed (fcp ring only)
1638 * (d) IOCB processing is not blocked by the outstanding mbox command.
1641 if (lpfc_is_link_up(phba) &&
1642 (!list_empty(&pring->txq)) &&
1643 (pring->ringno != phba->sli.fcp_ring ||
1644 phba->sli.sli_flag & LPFC_PROCESS_LA)) {
1646 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
1647 (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
1648 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
1651 lpfc_sli_update_ring(phba, pring);
1653 lpfc_sli_update_full_ring(phba, pring);
1660 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
1661 * @phba: Pointer to HBA context object.
1662 * @hbqno: HBQ number.
1664 * This function is called with hbalock held to get the next
1665 * available slot for the given HBQ. If there is free slot
1666 * available for the HBQ it will return pointer to the next available
1667 * HBQ entry else it will return NULL.
1669 static struct lpfc_hbq_entry *
1670 lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
1672 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1674 lockdep_assert_held(&phba->hbalock);
1676 if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
1677 ++hbqp->next_hbqPutIdx >= hbqp->entry_count)
1678 hbqp->next_hbqPutIdx = 0;
1680 if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
1681 uint32_t raw_index = phba->hbq_get[hbqno];
1682 uint32_t getidx = le32_to_cpu(raw_index);
1684 hbqp->local_hbqGetIdx = getidx;
1686 if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
1687 lpfc_printf_log(phba, KERN_ERR,
1688 LOG_SLI | LOG_VPORT,
1689 "1802 HBQ %d: local_hbqGetIdx "
1690 "%u is > than hbqp->entry_count %u\n",
1691 hbqno, hbqp->local_hbqGetIdx,
1694 phba->link_state = LPFC_HBA_ERROR;
1698 if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
1702 return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
1707 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
1708 * @phba: Pointer to HBA context object.
1710 * This function is called with no lock held to free all the
1711 * hbq buffers while uninitializing the SLI interface. It also
1712 * frees the HBQ buffers returned by the firmware but not yet
1713 * processed by the upper layers.
1716 lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
1718 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
1719 struct hbq_dmabuf *hbq_buf;
1720 unsigned long flags;
1724 hbq_count = lpfc_sli_hbq_count();
1725 /* Return all memory used by all HBQs */
1726 spin_lock_irqsave(&phba->hbalock, flags);
1727 for (i = 0; i < hbq_count; ++i) {
1728 list_for_each_entry_safe(dmabuf, next_dmabuf,
1729 &phba->hbqs[i].hbq_buffer_list, list) {
1730 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1731 list_del(&hbq_buf->dbuf.list);
1732 (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
1734 phba->hbqs[i].buffer_count = 0;
1736 /* Return all HBQ buffer that are in-fly */
1737 list_for_each_entry_safe(dmabuf, next_dmabuf, &phba->rb_pend_list,
1739 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1740 list_del(&hbq_buf->dbuf.list);
1741 if (hbq_buf->tag == -1) {
1742 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1745 hbqno = hbq_buf->tag >> 16;
1746 if (hbqno >= LPFC_MAX_HBQS)
1747 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1750 (phba->hbqs[hbqno].hbq_free_buffer)(phba,
1755 /* Mark the HBQs not in use */
1756 phba->hbq_in_use = 0;
1757 spin_unlock_irqrestore(&phba->hbalock, flags);
1761 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
1762 * @phba: Pointer to HBA context object.
1763 * @hbqno: HBQ number.
1764 * @hbq_buf: Pointer to HBQ buffer.
1766 * This function is called with the hbalock held to post a
1767 * hbq buffer to the firmware. If the function finds an empty
1768 * slot in the HBQ, it will post the buffer. The function will return
1769 * pointer to the hbq entry if it successfully post the buffer
1770 * else it will return NULL.
1773 lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
1774 struct hbq_dmabuf *hbq_buf)
1776 lockdep_assert_held(&phba->hbalock);
1777 return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
1781 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
1782 * @phba: Pointer to HBA context object.
1783 * @hbqno: HBQ number.
1784 * @hbq_buf: Pointer to HBQ buffer.
1786 * This function is called with the hbalock held to post a hbq buffer to the
1787 * firmware. If the function finds an empty slot in the HBQ, it will post the
1788 * buffer and place it on the hbq_buffer_list. The function will return zero if
1789 * it successfully post the buffer else it will return an error.
1792 lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
1793 struct hbq_dmabuf *hbq_buf)
1795 struct lpfc_hbq_entry *hbqe;
1796 dma_addr_t physaddr = hbq_buf->dbuf.phys;
1798 lockdep_assert_held(&phba->hbalock);
1799 /* Get next HBQ entry slot to use */
1800 hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
1802 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1804 hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
1805 hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
1806 hbqe->bde.tus.f.bdeSize = hbq_buf->size;
1807 hbqe->bde.tus.f.bdeFlags = 0;
1808 hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
1809 hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
1811 hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
1812 writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
1814 readl(phba->hbq_put + hbqno);
1815 list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
1822 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
1823 * @phba: Pointer to HBA context object.
1824 * @hbqno: HBQ number.
1825 * @hbq_buf: Pointer to HBQ buffer.
1827 * This function is called with the hbalock held to post an RQE to the SLI4
1828 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
1829 * the hbq_buffer_list and return zero, otherwise it will return an error.
1832 lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
1833 struct hbq_dmabuf *hbq_buf)
1836 struct lpfc_rqe hrqe;
1837 struct lpfc_rqe drqe;
1839 lockdep_assert_held(&phba->hbalock);
1840 hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
1841 hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
1842 drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
1843 drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
1844 rc = lpfc_sli4_rq_put(phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
1849 list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
1853 /* HBQ for ELS and CT traffic. */
1854 static struct lpfc_hbq_init lpfc_els_hbq = {
1859 .ring_mask = (1 << LPFC_ELS_RING),
1865 /* HBQ for the extra ring if needed */
1866 static struct lpfc_hbq_init lpfc_extra_hbq = {
1871 .ring_mask = (1 << LPFC_EXTRA_RING),
1878 struct lpfc_hbq_init *lpfc_hbq_defs[] = {
1884 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
1885 * @phba: Pointer to HBA context object.
1886 * @hbqno: HBQ number.
1887 * @count: Number of HBQ buffers to be posted.
1889 * This function is called with no lock held to post more hbq buffers to the
1890 * given HBQ. The function returns the number of HBQ buffers successfully
1894 lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
1896 uint32_t i, posted = 0;
1897 unsigned long flags;
1898 struct hbq_dmabuf *hbq_buffer;
1899 LIST_HEAD(hbq_buf_list);
1900 if (!phba->hbqs[hbqno].hbq_alloc_buffer)
1903 if ((phba->hbqs[hbqno].buffer_count + count) >
1904 lpfc_hbq_defs[hbqno]->entry_count)
1905 count = lpfc_hbq_defs[hbqno]->entry_count -
1906 phba->hbqs[hbqno].buffer_count;
1909 /* Allocate HBQ entries */
1910 for (i = 0; i < count; i++) {
1911 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
1914 list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
1916 /* Check whether HBQ is still in use */
1917 spin_lock_irqsave(&phba->hbalock, flags);
1918 if (!phba->hbq_in_use)
1920 while (!list_empty(&hbq_buf_list)) {
1921 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1923 hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
1925 if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
1926 phba->hbqs[hbqno].buffer_count++;
1929 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1931 spin_unlock_irqrestore(&phba->hbalock, flags);
1934 spin_unlock_irqrestore(&phba->hbalock, flags);
1935 while (!list_empty(&hbq_buf_list)) {
1936 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1938 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1944 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
1945 * @phba: Pointer to HBA context object.
1948 * This function posts more buffers to the HBQ. This function
1949 * is called with no lock held. The function returns the number of HBQ entries
1950 * successfully allocated.
1953 lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
1955 if (phba->sli_rev == LPFC_SLI_REV4)
1958 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1959 lpfc_hbq_defs[qno]->add_count);
1963 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
1964 * @phba: Pointer to HBA context object.
1965 * @qno: HBQ queue number.
1967 * This function is called from SLI initialization code path with
1968 * no lock held to post initial HBQ buffers to firmware. The
1969 * function returns the number of HBQ entries successfully allocated.
1972 lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
1974 if (phba->sli_rev == LPFC_SLI_REV4)
1975 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1976 lpfc_hbq_defs[qno]->entry_count);
1978 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1979 lpfc_hbq_defs[qno]->init_count);
1983 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
1984 * @phba: Pointer to HBA context object.
1985 * @hbqno: HBQ number.
1987 * This function removes the first hbq buffer on an hbq list and returns a
1988 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
1990 static struct hbq_dmabuf *
1991 lpfc_sli_hbqbuf_get(struct list_head *rb_list)
1993 struct lpfc_dmabuf *d_buf;
1995 list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
1998 return container_of(d_buf, struct hbq_dmabuf, dbuf);
2002 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
2003 * @phba: Pointer to HBA context object.
2004 * @tag: Tag of the hbq buffer.
2006 * This function searches for the hbq buffer associated with the given tag in
2007 * the hbq buffer list. If it finds the hbq buffer, it returns the hbq_buffer
2008 * otherwise it returns NULL.
2010 static struct hbq_dmabuf *
2011 lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
2013 struct lpfc_dmabuf *d_buf;
2014 struct hbq_dmabuf *hbq_buf;
2018 if (hbqno >= LPFC_MAX_HBQS)
2021 spin_lock_irq(&phba->hbalock);
2022 list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
2023 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
2024 if (hbq_buf->tag == tag) {
2025 spin_unlock_irq(&phba->hbalock);
2029 spin_unlock_irq(&phba->hbalock);
2030 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT,
2031 "1803 Bad hbq tag. Data: x%x x%x\n",
2032 tag, phba->hbqs[tag >> 16].buffer_count);
2037 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
2038 * @phba: Pointer to HBA context object.
2039 * @hbq_buffer: Pointer to HBQ buffer.
2041 * This function is called with hbalock. This function gives back
2042 * the hbq buffer to firmware. If the HBQ does not have space to
2043 * post the buffer, it will free the buffer.
2046 lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
2051 hbqno = hbq_buffer->tag >> 16;
2052 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
2053 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
2058 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
2059 * @mbxCommand: mailbox command code.
2061 * This function is called by the mailbox event handler function to verify
2062 * that the completed mailbox command is a legitimate mailbox command. If the
2063 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
2064 * and the mailbox event handler will take the HBA offline.
2067 lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
2071 switch (mbxCommand) {
2075 case MBX_WRITE_VPARMS:
2076 case MBX_RUN_BIU_DIAG:
2079 case MBX_CONFIG_LINK:
2080 case MBX_CONFIG_RING:
2081 case MBX_RESET_RING:
2082 case MBX_READ_CONFIG:
2083 case MBX_READ_RCONFIG:
2084 case MBX_READ_SPARM:
2085 case MBX_READ_STATUS:
2089 case MBX_READ_LNK_STAT:
2091 case MBX_UNREG_LOGIN:
2093 case MBX_DUMP_MEMORY:
2094 case MBX_DUMP_CONTEXT:
2097 case MBX_UPDATE_CFG:
2099 case MBX_DEL_LD_ENTRY:
2100 case MBX_RUN_PROGRAM:
2102 case MBX_SET_VARIABLE:
2103 case MBX_UNREG_D_ID:
2104 case MBX_KILL_BOARD:
2105 case MBX_CONFIG_FARP:
2108 case MBX_RUN_BIU_DIAG64:
2109 case MBX_CONFIG_PORT:
2110 case MBX_READ_SPARM64:
2111 case MBX_READ_RPI64:
2112 case MBX_REG_LOGIN64:
2113 case MBX_READ_TOPOLOGY:
2116 case MBX_LOAD_EXP_ROM:
2117 case MBX_ASYNCEVT_ENABLE:
2121 case MBX_PORT_CAPABILITIES:
2122 case MBX_PORT_IOV_CONTROL:
2123 case MBX_SLI4_CONFIG:
2124 case MBX_SLI4_REQ_FTRS:
2126 case MBX_UNREG_FCFI:
2131 case MBX_RESUME_RPI:
2132 case MBX_READ_EVENT_LOG_STATUS:
2133 case MBX_READ_EVENT_LOG:
2134 case MBX_SECURITY_MGMT:
2136 case MBX_ACCESS_VDATA:
2147 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
2148 * @phba: Pointer to HBA context object.
2149 * @pmboxq: Pointer to mailbox command.
2151 * This is completion handler function for mailbox commands issued from
2152 * lpfc_sli_issue_mbox_wait function. This function is called by the
2153 * mailbox event handler function with no lock held. This function
2154 * will wake up thread waiting on the wait queue pointed by context1
2158 lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
2160 wait_queue_head_t *pdone_q;
2161 unsigned long drvr_flag;
2164 * If pdone_q is empty, the driver thread gave up waiting and
2165 * continued running.
2167 pmboxq->mbox_flag |= LPFC_MBX_WAKE;
2168 spin_lock_irqsave(&phba->hbalock, drvr_flag);
2169 pdone_q = (wait_queue_head_t *) pmboxq->context1;
2171 wake_up_interruptible(pdone_q);
2172 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
2178 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
2179 * @phba: Pointer to HBA context object.
2180 * @pmb: Pointer to mailbox object.
2182 * This function is the default mailbox completion handler. It
2183 * frees the memory resources associated with the completed mailbox
2184 * command. If the completed command is a REG_LOGIN mailbox command,
2185 * this function will issue a UREG_LOGIN to re-claim the RPI.
2188 lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2190 struct lpfc_vport *vport = pmb->vport;
2191 struct lpfc_dmabuf *mp;
2192 struct lpfc_nodelist *ndlp;
2193 struct Scsi_Host *shost;
2197 mp = (struct lpfc_dmabuf *) (pmb->context1);
2200 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2205 * If a REG_LOGIN succeeded after node is destroyed or node
2206 * is in re-discovery driver need to cleanup the RPI.
2208 if (!(phba->pport->load_flag & FC_UNLOADING) &&
2209 pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
2210 !pmb->u.mb.mbxStatus) {
2211 rpi = pmb->u.mb.un.varWords[0];
2212 vpi = pmb->u.mb.un.varRegLogin.vpi;
2213 if (phba->sli_rev == LPFC_SLI_REV4)
2214 vpi -= phba->sli4_hba.max_cfg_param.vpi_base;
2215 lpfc_unreg_login(phba, vpi, rpi, pmb);
2217 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2218 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2219 if (rc != MBX_NOT_FINISHED)
2223 if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) &&
2224 !(phba->pport->load_flag & FC_UNLOADING) &&
2225 !pmb->u.mb.mbxStatus) {
2226 shost = lpfc_shost_from_vport(vport);
2227 spin_lock_irq(shost->host_lock);
2228 vport->vpi_state |= LPFC_VPI_REGISTERED;
2229 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
2230 spin_unlock_irq(shost->host_lock);
2233 if (pmb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
2234 ndlp = (struct lpfc_nodelist *)pmb->context2;
2236 pmb->context2 = NULL;
2239 /* Check security permission status on INIT_LINK mailbox command */
2240 if ((pmb->u.mb.mbxCommand == MBX_INIT_LINK) &&
2241 (pmb->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
2242 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2243 "2860 SLI authentication is required "
2244 "for INIT_LINK but has not done yet\n");
2246 if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
2247 lpfc_sli4_mbox_cmd_free(phba, pmb);
2249 mempool_free(pmb, phba->mbox_mem_pool);
2252 * lpfc_sli4_unreg_rpi_cmpl_clr - mailbox completion handler
2253 * @phba: Pointer to HBA context object.
2254 * @pmb: Pointer to mailbox object.
2256 * This function is the unreg rpi mailbox completion handler. It
2257 * frees the memory resources associated with the completed mailbox
2258 * command. An additional refrenece is put on the ndlp to prevent
2259 * lpfc_nlp_release from freeing the rpi bit in the bitmask before
2260 * the unreg mailbox command completes, this routine puts the
2265 lpfc_sli4_unreg_rpi_cmpl_clr(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2267 struct lpfc_vport *vport = pmb->vport;
2268 struct lpfc_nodelist *ndlp;
2270 ndlp = pmb->context1;
2271 if (pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) {
2272 if (phba->sli_rev == LPFC_SLI_REV4 &&
2273 (bf_get(lpfc_sli_intf_if_type,
2274 &phba->sli4_hba.sli_intf) ==
2275 LPFC_SLI_INTF_IF_TYPE_2)) {
2277 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
2278 "0010 UNREG_LOGIN vpi:%x "
2279 "rpi:%x DID:%x map:%x %p\n",
2280 vport->vpi, ndlp->nlp_rpi,
2282 ndlp->nlp_usg_map, ndlp);
2283 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
2289 mempool_free(pmb, phba->mbox_mem_pool);
2293 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
2294 * @phba: Pointer to HBA context object.
2296 * This function is called with no lock held. This function processes all
2297 * the completed mailbox commands and gives it to upper layers. The interrupt
2298 * service routine processes mailbox completion interrupt and adds completed
2299 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
2300 * Worker thread call lpfc_sli_handle_mb_event, which will return the
2301 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
2302 * function returns the mailbox commands to the upper layer by calling the
2303 * completion handler function of each mailbox.
2306 lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
2313 phba->sli.slistat.mbox_event++;
2315 /* Get all completed mailboxe buffers into the cmplq */
2316 spin_lock_irq(&phba->hbalock);
2317 list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
2318 spin_unlock_irq(&phba->hbalock);
2320 /* Get a Mailbox buffer to setup mailbox commands for callback */
2322 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
2328 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
2330 lpfc_debugfs_disc_trc(pmb->vport,
2331 LPFC_DISC_TRC_MBOX_VPORT,
2332 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
2333 (uint32_t)pmbox->mbxCommand,
2334 pmbox->un.varWords[0],
2335 pmbox->un.varWords[1]);
2338 lpfc_debugfs_disc_trc(phba->pport,
2340 "MBOX cmpl: cmd:x%x mb:x%x x%x",
2341 (uint32_t)pmbox->mbxCommand,
2342 pmbox->un.varWords[0],
2343 pmbox->un.varWords[1]);
2348 * It is a fatal error if unknown mbox command completion.
2350 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
2352 /* Unknown mailbox command compl */
2353 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2354 "(%d):0323 Unknown Mailbox command "
2355 "x%x (x%x/x%x) Cmpl\n",
2356 pmb->vport ? pmb->vport->vpi : 0,
2358 lpfc_sli_config_mbox_subsys_get(phba,
2360 lpfc_sli_config_mbox_opcode_get(phba,
2362 phba->link_state = LPFC_HBA_ERROR;
2363 phba->work_hs = HS_FFER3;
2364 lpfc_handle_eratt(phba);
2368 if (pmbox->mbxStatus) {
2369 phba->sli.slistat.mbox_stat_err++;
2370 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
2371 /* Mbox cmd cmpl error - RETRYing */
2372 lpfc_printf_log(phba, KERN_INFO,
2374 "(%d):0305 Mbox cmd cmpl "
2375 "error - RETRYing Data: x%x "
2376 "(x%x/x%x) x%x x%x x%x\n",
2377 pmb->vport ? pmb->vport->vpi : 0,
2379 lpfc_sli_config_mbox_subsys_get(phba,
2381 lpfc_sli_config_mbox_opcode_get(phba,
2384 pmbox->un.varWords[0],
2385 pmb->vport->port_state);
2386 pmbox->mbxStatus = 0;
2387 pmbox->mbxOwner = OWN_HOST;
2388 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2389 if (rc != MBX_NOT_FINISHED)
2394 /* Mailbox cmd <cmd> Cmpl <cmpl> */
2395 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
2396 "(%d):0307 Mailbox cmd x%x (x%x/x%x) Cmpl x%p "
2397 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
2399 pmb->vport ? pmb->vport->vpi : 0,
2401 lpfc_sli_config_mbox_subsys_get(phba, pmb),
2402 lpfc_sli_config_mbox_opcode_get(phba, pmb),
2404 *((uint32_t *) pmbox),
2405 pmbox->un.varWords[0],
2406 pmbox->un.varWords[1],
2407 pmbox->un.varWords[2],
2408 pmbox->un.varWords[3],
2409 pmbox->un.varWords[4],
2410 pmbox->un.varWords[5],
2411 pmbox->un.varWords[6],
2412 pmbox->un.varWords[7],
2413 pmbox->un.varWords[8],
2414 pmbox->un.varWords[9],
2415 pmbox->un.varWords[10]);
2418 pmb->mbox_cmpl(phba,pmb);
2424 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
2425 * @phba: Pointer to HBA context object.
2426 * @pring: Pointer to driver SLI ring object.
2429 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
2430 * is set in the tag the buffer is posted for a particular exchange,
2431 * the function will return the buffer without replacing the buffer.
2432 * If the buffer is for unsolicited ELS or CT traffic, this function
2433 * returns the buffer and also posts another buffer to the firmware.
2435 static struct lpfc_dmabuf *
2436 lpfc_sli_get_buff(struct lpfc_hba *phba,
2437 struct lpfc_sli_ring *pring,
2440 struct hbq_dmabuf *hbq_entry;
2442 if (tag & QUE_BUFTAG_BIT)
2443 return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
2444 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
2447 return &hbq_entry->dbuf;
2451 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
2452 * @phba: Pointer to HBA context object.
2453 * @pring: Pointer to driver SLI ring object.
2454 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
2455 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
2456 * @fch_type: the type for the first frame of the sequence.
2458 * This function is called with no lock held. This function uses the r_ctl and
2459 * type of the received sequence to find the correct callback function to call
2460 * to process the sequence.
2463 lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2464 struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
2469 /* unSolicited Responses */
2470 if (pring->prt[0].profile) {
2471 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
2472 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
2476 /* We must search, based on rctl / type
2477 for the right routine */
2478 for (i = 0; i < pring->num_mask; i++) {
2479 if ((pring->prt[i].rctl == fch_r_ctl) &&
2480 (pring->prt[i].type == fch_type)) {
2481 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
2482 (pring->prt[i].lpfc_sli_rcv_unsol_event)
2483 (phba, pring, saveq);
2491 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
2492 * @phba: Pointer to HBA context object.
2493 * @pring: Pointer to driver SLI ring object.
2494 * @saveq: Pointer to the unsolicited iocb.
2496 * This function is called with no lock held by the ring event handler
2497 * when there is an unsolicited iocb posted to the response ring by the
2498 * firmware. This function gets the buffer associated with the iocbs
2499 * and calls the event handler for the ring. This function handles both
2500 * qring buffers and hbq buffers.
2501 * When the function returns 1 the caller can free the iocb object otherwise
2502 * upper layer functions will free the iocb objects.
2505 lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2506 struct lpfc_iocbq *saveq)
2510 uint32_t Rctl, Type;
2511 struct lpfc_iocbq *iocbq;
2512 struct lpfc_dmabuf *dmzbuf;
2514 irsp = &(saveq->iocb);
2516 if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
2517 if (pring->lpfc_sli_rcv_async_status)
2518 pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
2520 lpfc_printf_log(phba,
2523 "0316 Ring %d handler: unexpected "
2524 "ASYNC_STATUS iocb received evt_code "
2527 irsp->un.asyncstat.evt_code);
2531 if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
2532 (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
2533 if (irsp->ulpBdeCount > 0) {
2534 dmzbuf = lpfc_sli_get_buff(phba, pring,
2535 irsp->un.ulpWord[3]);
2536 lpfc_in_buf_free(phba, dmzbuf);
2539 if (irsp->ulpBdeCount > 1) {
2540 dmzbuf = lpfc_sli_get_buff(phba, pring,
2541 irsp->unsli3.sli3Words[3]);
2542 lpfc_in_buf_free(phba, dmzbuf);
2545 if (irsp->ulpBdeCount > 2) {
2546 dmzbuf = lpfc_sli_get_buff(phba, pring,
2547 irsp->unsli3.sli3Words[7]);
2548 lpfc_in_buf_free(phba, dmzbuf);
2554 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
2555 if (irsp->ulpBdeCount != 0) {
2556 saveq->context2 = lpfc_sli_get_buff(phba, pring,
2557 irsp->un.ulpWord[3]);
2558 if (!saveq->context2)
2559 lpfc_printf_log(phba,
2562 "0341 Ring %d Cannot find buffer for "
2563 "an unsolicited iocb. tag 0x%x\n",
2565 irsp->un.ulpWord[3]);
2567 if (irsp->ulpBdeCount == 2) {
2568 saveq->context3 = lpfc_sli_get_buff(phba, pring,
2569 irsp->unsli3.sli3Words[7]);
2570 if (!saveq->context3)
2571 lpfc_printf_log(phba,
2574 "0342 Ring %d Cannot find buffer for an"
2575 " unsolicited iocb. tag 0x%x\n",
2577 irsp->unsli3.sli3Words[7]);
2579 list_for_each_entry(iocbq, &saveq->list, list) {
2580 irsp = &(iocbq->iocb);
2581 if (irsp->ulpBdeCount != 0) {
2582 iocbq->context2 = lpfc_sli_get_buff(phba, pring,
2583 irsp->un.ulpWord[3]);
2584 if (!iocbq->context2)
2585 lpfc_printf_log(phba,
2588 "0343 Ring %d Cannot find "
2589 "buffer for an unsolicited iocb"
2590 ". tag 0x%x\n", pring->ringno,
2591 irsp->un.ulpWord[3]);
2593 if (irsp->ulpBdeCount == 2) {
2594 iocbq->context3 = lpfc_sli_get_buff(phba, pring,
2595 irsp->unsli3.sli3Words[7]);
2596 if (!iocbq->context3)
2597 lpfc_printf_log(phba,
2600 "0344 Ring %d Cannot find "
2601 "buffer for an unsolicited "
2604 irsp->unsli3.sli3Words[7]);
2608 if (irsp->ulpBdeCount != 0 &&
2609 (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
2610 irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
2613 /* search continue save q for same XRI */
2614 list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
2615 if (iocbq->iocb.unsli3.rcvsli3.ox_id ==
2616 saveq->iocb.unsli3.rcvsli3.ox_id) {
2617 list_add_tail(&saveq->list, &iocbq->list);
2623 list_add_tail(&saveq->clist,
2624 &pring->iocb_continue_saveq);
2625 if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
2626 list_del_init(&iocbq->clist);
2628 irsp = &(saveq->iocb);
2632 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
2633 (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
2634 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
2635 Rctl = FC_RCTL_ELS_REQ;
2638 w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
2639 Rctl = w5p->hcsw.Rctl;
2640 Type = w5p->hcsw.Type;
2642 /* Firmware Workaround */
2643 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
2644 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
2645 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
2646 Rctl = FC_RCTL_ELS_REQ;
2648 w5p->hcsw.Rctl = Rctl;
2649 w5p->hcsw.Type = Type;
2653 if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
2654 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2655 "0313 Ring %d handler: unexpected Rctl x%x "
2656 "Type x%x received\n",
2657 pring->ringno, Rctl, Type);
2663 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
2664 * @phba: Pointer to HBA context object.
2665 * @pring: Pointer to driver SLI ring object.
2666 * @prspiocb: Pointer to response iocb object.
2668 * This function looks up the iocb_lookup table to get the command iocb
2669 * corresponding to the given response iocb using the iotag of the
2670 * response iocb. This function is called with the hbalock held.
2671 * This function returns the command iocb object if it finds the command
2672 * iocb else returns NULL.
2674 static struct lpfc_iocbq *
2675 lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
2676 struct lpfc_sli_ring *pring,
2677 struct lpfc_iocbq *prspiocb)
2679 struct lpfc_iocbq *cmd_iocb = NULL;
2681 lockdep_assert_held(&phba->hbalock);
2683 iotag = prspiocb->iocb.ulpIoTag;
2685 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2686 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2687 list_del_init(&cmd_iocb->list);
2688 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
2689 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
2694 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2695 "0317 iotag x%x is out off "
2696 "range: max iotag x%x wd0 x%x\n",
2697 iotag, phba->sli.last_iotag,
2698 *(((uint32_t *) &prspiocb->iocb) + 7));
2703 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2704 * @phba: Pointer to HBA context object.
2705 * @pring: Pointer to driver SLI ring object.
2708 * This function looks up the iocb_lookup table to get the command iocb
2709 * corresponding to the given iotag. This function is called with the
2711 * This function returns the command iocb object if it finds the command
2712 * iocb else returns NULL.
2714 static struct lpfc_iocbq *
2715 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
2716 struct lpfc_sli_ring *pring, uint16_t iotag)
2718 struct lpfc_iocbq *cmd_iocb;
2720 lockdep_assert_held(&phba->hbalock);
2721 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2722 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2723 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
2724 /* remove from txcmpl queue list */
2725 list_del_init(&cmd_iocb->list);
2726 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
2730 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2731 "0372 iotag x%x is out off range: max iotag (x%x)\n",
2732 iotag, phba->sli.last_iotag);
2737 * lpfc_sli_process_sol_iocb - process solicited iocb completion
2738 * @phba: Pointer to HBA context object.
2739 * @pring: Pointer to driver SLI ring object.
2740 * @saveq: Pointer to the response iocb to be processed.
2742 * This function is called by the ring event handler for non-fcp
2743 * rings when there is a new response iocb in the response ring.
2744 * The caller is not required to hold any locks. This function
2745 * gets the command iocb associated with the response iocb and
2746 * calls the completion handler for the command iocb. If there
2747 * is no completion handler, the function will free the resources
2748 * associated with command iocb. If the response iocb is for
2749 * an already aborted command iocb, the status of the completion
2750 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
2751 * This function always returns 1.
2754 lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2755 struct lpfc_iocbq *saveq)
2757 struct lpfc_iocbq *cmdiocbp;
2759 unsigned long iflag;
2761 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
2762 spin_lock_irqsave(&phba->hbalock, iflag);
2763 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
2764 spin_unlock_irqrestore(&phba->hbalock, iflag);
2767 if (cmdiocbp->iocb_cmpl) {
2769 * If an ELS command failed send an event to mgmt
2772 if (saveq->iocb.ulpStatus &&
2773 (pring->ringno == LPFC_ELS_RING) &&
2774 (cmdiocbp->iocb.ulpCommand ==
2775 CMD_ELS_REQUEST64_CR))
2776 lpfc_send_els_failure_event(phba,
2780 * Post all ELS completions to the worker thread.
2781 * All other are passed to the completion callback.
2783 if (pring->ringno == LPFC_ELS_RING) {
2784 if ((phba->sli_rev < LPFC_SLI_REV4) &&
2785 (cmdiocbp->iocb_flag &
2786 LPFC_DRIVER_ABORTED)) {
2787 spin_lock_irqsave(&phba->hbalock,
2789 cmdiocbp->iocb_flag &=
2790 ~LPFC_DRIVER_ABORTED;
2791 spin_unlock_irqrestore(&phba->hbalock,
2793 saveq->iocb.ulpStatus =
2794 IOSTAT_LOCAL_REJECT;
2795 saveq->iocb.un.ulpWord[4] =
2798 /* Firmware could still be in progress
2799 * of DMAing payload, so don't free data
2800 * buffer till after a hbeat.
2802 spin_lock_irqsave(&phba->hbalock,
2804 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
2805 spin_unlock_irqrestore(&phba->hbalock,
2808 if (phba->sli_rev == LPFC_SLI_REV4) {
2809 if (saveq->iocb_flag &
2810 LPFC_EXCHANGE_BUSY) {
2811 /* Set cmdiocb flag for the
2812 * exchange busy so sgl (xri)
2813 * will not be released until
2814 * the abort xri is received
2818 &phba->hbalock, iflag);
2819 cmdiocbp->iocb_flag |=
2821 spin_unlock_irqrestore(
2822 &phba->hbalock, iflag);
2824 if (cmdiocbp->iocb_flag &
2825 LPFC_DRIVER_ABORTED) {
2827 * Clear LPFC_DRIVER_ABORTED
2828 * bit in case it was driver
2832 &phba->hbalock, iflag);
2833 cmdiocbp->iocb_flag &=
2834 ~LPFC_DRIVER_ABORTED;
2835 spin_unlock_irqrestore(
2836 &phba->hbalock, iflag);
2837 cmdiocbp->iocb.ulpStatus =
2838 IOSTAT_LOCAL_REJECT;
2839 cmdiocbp->iocb.un.ulpWord[4] =
2840 IOERR_ABORT_REQUESTED;
2842 * For SLI4, irsiocb contains
2843 * NO_XRI in sli_xritag, it
2844 * shall not affect releasing
2845 * sgl (xri) process.
2847 saveq->iocb.ulpStatus =
2848 IOSTAT_LOCAL_REJECT;
2849 saveq->iocb.un.ulpWord[4] =
2852 &phba->hbalock, iflag);
2854 LPFC_DELAY_MEM_FREE;
2855 spin_unlock_irqrestore(
2856 &phba->hbalock, iflag);
2860 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
2862 lpfc_sli_release_iocbq(phba, cmdiocbp);
2865 * Unknown initiating command based on the response iotag.
2866 * This could be the case on the ELS ring because of
2869 if (pring->ringno != LPFC_ELS_RING) {
2871 * Ring <ringno> handler: unexpected completion IoTag
2874 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2875 "0322 Ring %d handler: "
2876 "unexpected completion IoTag x%x "
2877 "Data: x%x x%x x%x x%x\n",
2879 saveq->iocb.ulpIoTag,
2880 saveq->iocb.ulpStatus,
2881 saveq->iocb.un.ulpWord[4],
2882 saveq->iocb.ulpCommand,
2883 saveq->iocb.ulpContext);
2891 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
2892 * @phba: Pointer to HBA context object.
2893 * @pring: Pointer to driver SLI ring object.
2895 * This function is called from the iocb ring event handlers when
2896 * put pointer is ahead of the get pointer for a ring. This function signal
2897 * an error attention condition to the worker thread and the worker
2898 * thread will transition the HBA to offline state.
2901 lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
2903 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2905 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
2906 * rsp ring <portRspMax>
2908 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2909 "0312 Ring %d handler: portRspPut %d "
2910 "is bigger than rsp ring %d\n",
2911 pring->ringno, le32_to_cpu(pgp->rspPutInx),
2912 pring->sli.sli3.numRiocb);
2914 phba->link_state = LPFC_HBA_ERROR;
2917 * All error attention handlers are posted to
2920 phba->work_ha |= HA_ERATT;
2921 phba->work_hs = HS_FFER3;
2923 lpfc_worker_wake_up(phba);
2929 * lpfc_poll_eratt - Error attention polling timer timeout handler
2930 * @ptr: Pointer to address of HBA context object.
2932 * This function is invoked by the Error Attention polling timer when the
2933 * timer times out. It will check the SLI Error Attention register for
2934 * possible attention events. If so, it will post an Error Attention event
2935 * and wake up worker thread to process it. Otherwise, it will set up the
2936 * Error Attention polling timer for the next poll.
2938 void lpfc_poll_eratt(unsigned long ptr)
2940 struct lpfc_hba *phba;
2942 uint64_t sli_intr, cnt;
2944 phba = (struct lpfc_hba *)ptr;
2946 /* Here we will also keep track of interrupts per sec of the hba */
2947 sli_intr = phba->sli.slistat.sli_intr;
2949 if (phba->sli.slistat.sli_prev_intr > sli_intr)
2950 cnt = (((uint64_t)(-1) - phba->sli.slistat.sli_prev_intr) +
2953 cnt = (sli_intr - phba->sli.slistat.sli_prev_intr);
2955 /* 64-bit integer division not supported on 32-bit x86 - use do_div */
2956 do_div(cnt, phba->eratt_poll_interval);
2957 phba->sli.slistat.sli_ips = cnt;
2959 phba->sli.slistat.sli_prev_intr = sli_intr;
2961 /* Check chip HA register for error event */
2962 eratt = lpfc_sli_check_eratt(phba);
2965 /* Tell the worker thread there is work to do */
2966 lpfc_worker_wake_up(phba);
2968 /* Restart the timer for next eratt poll */
2969 mod_timer(&phba->eratt_poll,
2971 msecs_to_jiffies(1000 * phba->eratt_poll_interval));
2977 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
2978 * @phba: Pointer to HBA context object.
2979 * @pring: Pointer to driver SLI ring object.
2980 * @mask: Host attention register mask for this ring.
2982 * This function is called from the interrupt context when there is a ring
2983 * event for the fcp ring. The caller does not hold any lock.
2984 * The function processes each response iocb in the response ring until it
2985 * finds an iocb with LE bit set and chains all the iocbs up to the iocb with
2986 * LE bit set. The function will call the completion handler of the command iocb
2987 * if the response iocb indicates a completion for a command iocb or it is
2988 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
2989 * function if this is an unsolicited iocb.
2990 * This routine presumes LPFC_FCP_RING handling and doesn't bother
2991 * to check it explicitly.
2994 lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
2995 struct lpfc_sli_ring *pring, uint32_t mask)
2997 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2998 IOCB_t *irsp = NULL;
2999 IOCB_t *entry = NULL;
3000 struct lpfc_iocbq *cmdiocbq = NULL;
3001 struct lpfc_iocbq rspiocbq;
3003 uint32_t portRspPut, portRspMax;
3005 lpfc_iocb_type type;
3006 unsigned long iflag;
3007 uint32_t rsp_cmpl = 0;
3009 spin_lock_irqsave(&phba->hbalock, iflag);
3010 pring->stats.iocb_event++;
3013 * The next available response entry should never exceed the maximum
3014 * entries. If it does, treat it as an adapter hardware error.
3016 portRspMax = pring->sli.sli3.numRiocb;
3017 portRspPut = le32_to_cpu(pgp->rspPutInx);
3018 if (unlikely(portRspPut >= portRspMax)) {
3019 lpfc_sli_rsp_pointers_error(phba, pring);
3020 spin_unlock_irqrestore(&phba->hbalock, iflag);
3023 if (phba->fcp_ring_in_use) {
3024 spin_unlock_irqrestore(&phba->hbalock, iflag);
3027 phba->fcp_ring_in_use = 1;
3030 while (pring->sli.sli3.rspidx != portRspPut) {
3032 * Fetch an entry off the ring and copy it into a local data
3033 * structure. The copy involves a byte-swap since the
3034 * network byte order and pci byte orders are different.
3036 entry = lpfc_resp_iocb(phba, pring);
3037 phba->last_completion_time = jiffies;
3039 if (++pring->sli.sli3.rspidx >= portRspMax)
3040 pring->sli.sli3.rspidx = 0;
3042 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
3043 (uint32_t *) &rspiocbq.iocb,
3044 phba->iocb_rsp_size);
3045 INIT_LIST_HEAD(&(rspiocbq.list));
3046 irsp = &rspiocbq.iocb;
3048 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
3049 pring->stats.iocb_rsp++;
3052 if (unlikely(irsp->ulpStatus)) {
3054 * If resource errors reported from HBA, reduce
3055 * queuedepths of the SCSI device.
3057 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3058 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3059 IOERR_NO_RESOURCES)) {
3060 spin_unlock_irqrestore(&phba->hbalock, iflag);
3061 phba->lpfc_rampdown_queue_depth(phba);
3062 spin_lock_irqsave(&phba->hbalock, iflag);
3065 /* Rsp ring <ringno> error: IOCB */
3066 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3067 "0336 Rsp Ring %d error: IOCB Data: "
3068 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
3070 irsp->un.ulpWord[0],
3071 irsp->un.ulpWord[1],
3072 irsp->un.ulpWord[2],
3073 irsp->un.ulpWord[3],
3074 irsp->un.ulpWord[4],
3075 irsp->un.ulpWord[5],
3076 *(uint32_t *)&irsp->un1,
3077 *((uint32_t *)&irsp->un1 + 1));
3081 case LPFC_ABORT_IOCB:
3084 * Idle exchange closed via ABTS from port. No iocb
3085 * resources need to be recovered.
3087 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
3088 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3089 "0333 IOCB cmd 0x%x"
3090 " processed. Skipping"
3096 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
3098 if (unlikely(!cmdiocbq))
3100 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED)
3101 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
3102 if (cmdiocbq->iocb_cmpl) {
3103 spin_unlock_irqrestore(&phba->hbalock, iflag);
3104 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
3106 spin_lock_irqsave(&phba->hbalock, iflag);
3109 case LPFC_UNSOL_IOCB:
3110 spin_unlock_irqrestore(&phba->hbalock, iflag);
3111 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
3112 spin_lock_irqsave(&phba->hbalock, iflag);
3115 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3116 char adaptermsg[LPFC_MAX_ADPTMSG];
3117 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3118 memcpy(&adaptermsg[0], (uint8_t *) irsp,
3120 dev_warn(&((phba->pcidev)->dev),
3122 phba->brd_no, adaptermsg);
3124 /* Unknown IOCB command */
3125 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3126 "0334 Unknown IOCB command "
3127 "Data: x%x, x%x x%x x%x x%x\n",
3128 type, irsp->ulpCommand,
3137 * The response IOCB has been processed. Update the ring
3138 * pointer in SLIM. If the port response put pointer has not
3139 * been updated, sync the pgp->rspPutInx and fetch the new port
3140 * response put pointer.
3142 writel(pring->sli.sli3.rspidx,
3143 &phba->host_gp[pring->ringno].rspGetInx);
3145 if (pring->sli.sli3.rspidx == portRspPut)
3146 portRspPut = le32_to_cpu(pgp->rspPutInx);
3149 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
3150 pring->stats.iocb_rsp_full++;
3151 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3152 writel(status, phba->CAregaddr);
3153 readl(phba->CAregaddr);
3155 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3156 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3157 pring->stats.iocb_cmd_empty++;
3159 /* Force update of the local copy of cmdGetInx */
3160 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3161 lpfc_sli_resume_iocb(phba, pring);
3163 if ((pring->lpfc_sli_cmd_available))
3164 (pring->lpfc_sli_cmd_available) (phba, pring);
3168 phba->fcp_ring_in_use = 0;
3169 spin_unlock_irqrestore(&phba->hbalock, iflag);
3174 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
3175 * @phba: Pointer to HBA context object.
3176 * @pring: Pointer to driver SLI ring object.
3177 * @rspiocbp: Pointer to driver response IOCB object.
3179 * This function is called from the worker thread when there is a slow-path
3180 * response IOCB to process. This function chains all the response iocbs until
3181 * seeing the iocb with the LE bit set. The function will call
3182 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
3183 * completion of a command iocb. The function will call the
3184 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
3185 * The function frees the resources or calls the completion handler if this
3186 * iocb is an abort completion. The function returns NULL when the response
3187 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
3188 * this function shall chain the iocb on to the iocb_continueq and return the
3189 * response iocb passed in.
3191 static struct lpfc_iocbq *
3192 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3193 struct lpfc_iocbq *rspiocbp)
3195 struct lpfc_iocbq *saveq;
3196 struct lpfc_iocbq *cmdiocbp;
3197 struct lpfc_iocbq *next_iocb;
3198 IOCB_t *irsp = NULL;
3199 uint32_t free_saveq;
3200 uint8_t iocb_cmd_type;
3201 lpfc_iocb_type type;
3202 unsigned long iflag;
3205 spin_lock_irqsave(&phba->hbalock, iflag);
3206 /* First add the response iocb to the countinueq list */
3207 list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
3208 pring->iocb_continueq_cnt++;
3210 /* Now, determine whether the list is completed for processing */
3211 irsp = &rspiocbp->iocb;
3214 * By default, the driver expects to free all resources
3215 * associated with this iocb completion.
3218 saveq = list_get_first(&pring->iocb_continueq,
3219 struct lpfc_iocbq, list);
3220 irsp = &(saveq->iocb);
3221 list_del_init(&pring->iocb_continueq);
3222 pring->iocb_continueq_cnt = 0;
3224 pring->stats.iocb_rsp++;
3227 * If resource errors reported from HBA, reduce
3228 * queuedepths of the SCSI device.
3230 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3231 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3232 IOERR_NO_RESOURCES)) {
3233 spin_unlock_irqrestore(&phba->hbalock, iflag);
3234 phba->lpfc_rampdown_queue_depth(phba);
3235 spin_lock_irqsave(&phba->hbalock, iflag);
3238 if (irsp->ulpStatus) {
3239 /* Rsp ring <ringno> error: IOCB */
3240 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3241 "0328 Rsp Ring %d error: "
3246 "x%x x%x x%x x%x\n",
3248 irsp->un.ulpWord[0],
3249 irsp->un.ulpWord[1],
3250 irsp->un.ulpWord[2],
3251 irsp->un.ulpWord[3],
3252 irsp->un.ulpWord[4],
3253 irsp->un.ulpWord[5],
3254 *(((uint32_t *) irsp) + 6),
3255 *(((uint32_t *) irsp) + 7),
3256 *(((uint32_t *) irsp) + 8),
3257 *(((uint32_t *) irsp) + 9),
3258 *(((uint32_t *) irsp) + 10),
3259 *(((uint32_t *) irsp) + 11),
3260 *(((uint32_t *) irsp) + 12),
3261 *(((uint32_t *) irsp) + 13),
3262 *(((uint32_t *) irsp) + 14),
3263 *(((uint32_t *) irsp) + 15));
3267 * Fetch the IOCB command type and call the correct completion
3268 * routine. Solicited and Unsolicited IOCBs on the ELS ring
3269 * get freed back to the lpfc_iocb_list by the discovery
3272 iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
3273 type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
3276 spin_unlock_irqrestore(&phba->hbalock, iflag);
3277 rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
3278 spin_lock_irqsave(&phba->hbalock, iflag);
3281 case LPFC_UNSOL_IOCB:
3282 spin_unlock_irqrestore(&phba->hbalock, iflag);
3283 rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
3284 spin_lock_irqsave(&phba->hbalock, iflag);
3289 case LPFC_ABORT_IOCB:
3291 if (irsp->ulpCommand != CMD_XRI_ABORTED_CX)
3292 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
3295 /* Call the specified completion routine */
3296 if (cmdiocbp->iocb_cmpl) {
3297 spin_unlock_irqrestore(&phba->hbalock,
3299 (cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
3301 spin_lock_irqsave(&phba->hbalock,
3304 __lpfc_sli_release_iocbq(phba,
3309 case LPFC_UNKNOWN_IOCB:
3310 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3311 char adaptermsg[LPFC_MAX_ADPTMSG];
3312 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3313 memcpy(&adaptermsg[0], (uint8_t *)irsp,
3315 dev_warn(&((phba->pcidev)->dev),
3317 phba->brd_no, adaptermsg);
3319 /* Unknown IOCB command */
3320 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3321 "0335 Unknown IOCB "
3322 "command Data: x%x "
3333 list_for_each_entry_safe(rspiocbp, next_iocb,
3334 &saveq->list, list) {
3335 list_del_init(&rspiocbp->list);
3336 __lpfc_sli_release_iocbq(phba, rspiocbp);
3338 __lpfc_sli_release_iocbq(phba, saveq);
3342 spin_unlock_irqrestore(&phba->hbalock, iflag);
3347 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
3348 * @phba: Pointer to HBA context object.
3349 * @pring: Pointer to driver SLI ring object.
3350 * @mask: Host attention register mask for this ring.
3352 * This routine wraps the actual slow_ring event process routine from the
3353 * API jump table function pointer from the lpfc_hba struct.
3356 lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
3357 struct lpfc_sli_ring *pring, uint32_t mask)
3359 phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
3363 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
3364 * @phba: Pointer to HBA context object.
3365 * @pring: Pointer to driver SLI ring object.
3366 * @mask: Host attention register mask for this ring.
3368 * This function is called from the worker thread when there is a ring event
3369 * for non-fcp rings. The caller does not hold any lock. The function will
3370 * remove each response iocb in the response ring and calls the handle
3371 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3374 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
3375 struct lpfc_sli_ring *pring, uint32_t mask)
3377 struct lpfc_pgp *pgp;
3379 IOCB_t *irsp = NULL;
3380 struct lpfc_iocbq *rspiocbp = NULL;
3381 uint32_t portRspPut, portRspMax;
3382 unsigned long iflag;
3385 pgp = &phba->port_gp[pring->ringno];
3386 spin_lock_irqsave(&phba->hbalock, iflag);
3387 pring->stats.iocb_event++;
3390 * The next available response entry should never exceed the maximum
3391 * entries. If it does, treat it as an adapter hardware error.
3393 portRspMax = pring->sli.sli3.numRiocb;
3394 portRspPut = le32_to_cpu(pgp->rspPutInx);
3395 if (portRspPut >= portRspMax) {
3397 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
3398 * rsp ring <portRspMax>
3400 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3401 "0303 Ring %d handler: portRspPut %d "
3402 "is bigger than rsp ring %d\n",
3403 pring->ringno, portRspPut, portRspMax);
3405 phba->link_state = LPFC_HBA_ERROR;
3406 spin_unlock_irqrestore(&phba->hbalock, iflag);
3408 phba->work_hs = HS_FFER3;
3409 lpfc_handle_eratt(phba);
3415 while (pring->sli.sli3.rspidx != portRspPut) {
3417 * Build a completion list and call the appropriate handler.
3418 * The process is to get the next available response iocb, get
3419 * a free iocb from the list, copy the response data into the
3420 * free iocb, insert to the continuation list, and update the
3421 * next response index to slim. This process makes response
3422 * iocb's in the ring available to DMA as fast as possible but
3423 * pays a penalty for a copy operation. Since the iocb is
3424 * only 32 bytes, this penalty is considered small relative to
3425 * the PCI reads for register values and a slim write. When
3426 * the ulpLe field is set, the entire Command has been
3429 entry = lpfc_resp_iocb(phba, pring);
3431 phba->last_completion_time = jiffies;
3432 rspiocbp = __lpfc_sli_get_iocbq(phba);
3433 if (rspiocbp == NULL) {
3434 printk(KERN_ERR "%s: out of buffers! Failing "
3435 "completion.\n", __func__);
3439 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
3440 phba->iocb_rsp_size);
3441 irsp = &rspiocbp->iocb;
3443 if (++pring->sli.sli3.rspidx >= portRspMax)
3444 pring->sli.sli3.rspidx = 0;
3446 if (pring->ringno == LPFC_ELS_RING) {
3447 lpfc_debugfs_slow_ring_trc(phba,
3448 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
3449 *(((uint32_t *) irsp) + 4),
3450 *(((uint32_t *) irsp) + 6),
3451 *(((uint32_t *) irsp) + 7));
3454 writel(pring->sli.sli3.rspidx,
3455 &phba->host_gp[pring->ringno].rspGetInx);
3457 spin_unlock_irqrestore(&phba->hbalock, iflag);
3458 /* Handle the response IOCB */
3459 rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
3460 spin_lock_irqsave(&phba->hbalock, iflag);
3463 * If the port response put pointer has not been updated, sync
3464 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
3465 * response put pointer.
3467 if (pring->sli.sli3.rspidx == portRspPut) {
3468 portRspPut = le32_to_cpu(pgp->rspPutInx);
3470 } /* while (pring->sli.sli3.rspidx != portRspPut) */
3472 if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
3473 /* At least one response entry has been freed */
3474 pring->stats.iocb_rsp_full++;
3475 /* SET RxRE_RSP in Chip Att register */
3476 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3477 writel(status, phba->CAregaddr);
3478 readl(phba->CAregaddr); /* flush */
3480 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3481 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3482 pring->stats.iocb_cmd_empty++;
3484 /* Force update of the local copy of cmdGetInx */
3485 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3486 lpfc_sli_resume_iocb(phba, pring);
3488 if ((pring->lpfc_sli_cmd_available))
3489 (pring->lpfc_sli_cmd_available) (phba, pring);
3493 spin_unlock_irqrestore(&phba->hbalock, iflag);
3498 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
3499 * @phba: Pointer to HBA context object.
3500 * @pring: Pointer to driver SLI ring object.
3501 * @mask: Host attention register mask for this ring.
3503 * This function is called from the worker thread when there is a pending
3504 * ELS response iocb on the driver internal slow-path response iocb worker
3505 * queue. The caller does not hold any lock. The function will remove each
3506 * response iocb from the response worker queue and calls the handle
3507 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3510 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
3511 struct lpfc_sli_ring *pring, uint32_t mask)
3513 struct lpfc_iocbq *irspiocbq;
3514 struct hbq_dmabuf *dmabuf;
3515 struct lpfc_cq_event *cq_event;
3516 unsigned long iflag;
3519 spin_lock_irqsave(&phba->hbalock, iflag);
3520 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
3521 spin_unlock_irqrestore(&phba->hbalock, iflag);
3522 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
3523 /* Get the response iocb from the head of work queue */
3524 spin_lock_irqsave(&phba->hbalock, iflag);
3525 list_remove_head(&phba->sli4_hba.sp_queue_event,
3526 cq_event, struct lpfc_cq_event, list);
3527 spin_unlock_irqrestore(&phba->hbalock, iflag);
3529 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
3530 case CQE_CODE_COMPL_WQE:
3531 irspiocbq = container_of(cq_event, struct lpfc_iocbq,
3533 /* Translate ELS WCQE to response IOCBQ */
3534 irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba,
3537 lpfc_sli_sp_handle_rspiocb(phba, pring,
3541 case CQE_CODE_RECEIVE:
3542 case CQE_CODE_RECEIVE_V1:
3543 dmabuf = container_of(cq_event, struct hbq_dmabuf,
3545 lpfc_sli4_handle_received_buffer(phba, dmabuf);
3552 /* Limit the number of events to 64 to avoid soft lockups */
3559 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
3560 * @phba: Pointer to HBA context object.
3561 * @pring: Pointer to driver SLI ring object.
3563 * This function aborts all iocbs in the given ring and frees all the iocb
3564 * objects in txq. This function issues an abort iocb for all the iocb commands
3565 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3566 * the return of this function. The caller is not required to hold any locks.
3569 lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3571 LIST_HEAD(completions);
3572 struct lpfc_iocbq *iocb, *next_iocb;
3574 if (pring->ringno == LPFC_ELS_RING) {
3575 lpfc_fabric_abort_hba(phba);
3578 /* Error everything on txq and txcmplq
3581 if (phba->sli_rev >= LPFC_SLI_REV4) {
3582 spin_lock_irq(&pring->ring_lock);
3583 list_splice_init(&pring->txq, &completions);
3585 spin_unlock_irq(&pring->ring_lock);
3587 spin_lock_irq(&phba->hbalock);
3588 /* Next issue ABTS for everything on the txcmplq */
3589 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3590 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3591 spin_unlock_irq(&phba->hbalock);
3593 spin_lock_irq(&phba->hbalock);
3594 list_splice_init(&pring->txq, &completions);
3597 /* Next issue ABTS for everything on the txcmplq */
3598 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3599 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3600 spin_unlock_irq(&phba->hbalock);
3603 /* Cancel all the IOCBs from the completions list */
3604 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3609 * lpfc_sli_abort_fcp_rings - Abort all iocbs in all FCP rings
3610 * @phba: Pointer to HBA context object.
3611 * @pring: Pointer to driver SLI ring object.
3613 * This function aborts all iocbs in FCP rings and frees all the iocb
3614 * objects in txq. This function issues an abort iocb for all the iocb commands
3615 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3616 * the return of this function. The caller is not required to hold any locks.
3619 lpfc_sli_abort_fcp_rings(struct lpfc_hba *phba)
3621 struct lpfc_sli *psli = &phba->sli;
3622 struct lpfc_sli_ring *pring;
3625 /* Look on all the FCP Rings for the iotag */
3626 if (phba->sli_rev >= LPFC_SLI_REV4) {
3627 for (i = 0; i < phba->cfg_fcp_io_channel; i++) {
3628 pring = &psli->ring[i + MAX_SLI3_CONFIGURED_RINGS];
3629 lpfc_sli_abort_iocb_ring(phba, pring);
3632 pring = &psli->ring[psli->fcp_ring];
3633 lpfc_sli_abort_iocb_ring(phba, pring);
3639 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
3640 * @phba: Pointer to HBA context object.
3642 * This function flushes all iocbs in the fcp ring and frees all the iocb
3643 * objects in txq and txcmplq. This function will not issue abort iocbs
3644 * for all the iocb commands in txcmplq, they will just be returned with
3645 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3646 * slot has been permanently disabled.
3649 lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba)
3653 struct lpfc_sli *psli = &phba->sli;
3654 struct lpfc_sli_ring *pring;
3657 spin_lock_irq(&phba->hbalock);
3658 /* Indicate the I/O queues are flushed */
3659 phba->hba_flag |= HBA_FCP_IOQ_FLUSH;
3660 spin_unlock_irq(&phba->hbalock);
3662 /* Look on all the FCP Rings for the iotag */
3663 if (phba->sli_rev >= LPFC_SLI_REV4) {
3664 for (i = 0; i < phba->cfg_fcp_io_channel; i++) {
3665 pring = &psli->ring[i + MAX_SLI3_CONFIGURED_RINGS];
3667 spin_lock_irq(&pring->ring_lock);
3668 /* Retrieve everything on txq */
3669 list_splice_init(&pring->txq, &txq);
3670 /* Retrieve everything on the txcmplq */
3671 list_splice_init(&pring->txcmplq, &txcmplq);
3673 pring->txcmplq_cnt = 0;
3674 spin_unlock_irq(&pring->ring_lock);
3677 lpfc_sli_cancel_iocbs(phba, &txq,
3678 IOSTAT_LOCAL_REJECT,
3680 /* Flush the txcmpq */
3681 lpfc_sli_cancel_iocbs(phba, &txcmplq,
3682 IOSTAT_LOCAL_REJECT,
3686 pring = &psli->ring[psli->fcp_ring];
3688 spin_lock_irq(&phba->hbalock);
3689 /* Retrieve everything on txq */
3690 list_splice_init(&pring->txq, &txq);
3691 /* Retrieve everything on the txcmplq */
3692 list_splice_init(&pring->txcmplq, &txcmplq);
3694 pring->txcmplq_cnt = 0;
3695 spin_unlock_irq(&phba->hbalock);
3698 lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
3700 /* Flush the txcmpq */
3701 lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
3707 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
3708 * @phba: Pointer to HBA context object.
3709 * @mask: Bit mask to be checked.
3711 * This function reads the host status register and compares
3712 * with the provided bit mask to check if HBA completed
3713 * the restart. This function will wait in a loop for the
3714 * HBA to complete restart. If the HBA does not restart within
3715 * 15 iterations, the function will reset the HBA again. The
3716 * function returns 1 when HBA fail to restart otherwise returns
3720 lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
3726 /* Read the HBA Host Status Register */
3727 if (lpfc_readl(phba->HSregaddr, &status))
3731 * Check status register every 100ms for 5 retries, then every
3732 * 500ms for 5, then every 2.5 sec for 5, then reset board and
3733 * every 2.5 sec for 4.
3734 * Break our of the loop if errors occurred during init.
3736 while (((status & mask) != mask) &&
3737 !(status & HS_FFERM) &&
3749 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3750 lpfc_sli_brdrestart(phba);
3752 /* Read the HBA Host Status Register */
3753 if (lpfc_readl(phba->HSregaddr, &status)) {
3759 /* Check to see if any errors occurred during init */
3760 if ((status & HS_FFERM) || (i >= 20)) {
3761 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3762 "2751 Adapter failed to restart, "
3763 "status reg x%x, FW Data: A8 x%x AC x%x\n",
3765 readl(phba->MBslimaddr + 0xa8),
3766 readl(phba->MBslimaddr + 0xac));
3767 phba->link_state = LPFC_HBA_ERROR;
3775 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3776 * @phba: Pointer to HBA context object.
3777 * @mask: Bit mask to be checked.
3779 * This function checks the host status register to check if HBA is
3780 * ready. This function will wait in a loop for the HBA to be ready
3781 * If the HBA is not ready , the function will will reset the HBA PCI
3782 * function again. The function returns 1 when HBA fail to be ready
3783 * otherwise returns zero.
3786 lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
3791 /* Read the HBA Host Status Register */
3792 status = lpfc_sli4_post_status_check(phba);
3795 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3796 lpfc_sli_brdrestart(phba);
3797 status = lpfc_sli4_post_status_check(phba);
3800 /* Check to see if any errors occurred during init */
3802 phba->link_state = LPFC_HBA_ERROR;
3805 phba->sli4_hba.intr_enable = 0;
3811 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3812 * @phba: Pointer to HBA context object.
3813 * @mask: Bit mask to be checked.
3815 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3816 * from the API jump table function pointer from the lpfc_hba struct.
3819 lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
3821 return phba->lpfc_sli_brdready(phba, mask);
3824 #define BARRIER_TEST_PATTERN (0xdeadbeef)
3827 * lpfc_reset_barrier - Make HBA ready for HBA reset
3828 * @phba: Pointer to HBA context object.
3830 * This function is called before resetting an HBA. This function is called
3831 * with hbalock held and requests HBA to quiesce DMAs before a reset.
3833 void lpfc_reset_barrier(struct lpfc_hba *phba)
3835 uint32_t __iomem *resp_buf;
3836 uint32_t __iomem *mbox_buf;
3837 volatile uint32_t mbox;
3838 uint32_t hc_copy, ha_copy, resp_data;
3842 lockdep_assert_held(&phba->hbalock);
3844 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
3845 if (hdrtype != 0x80 ||
3846 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
3847 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
3851 * Tell the other part of the chip to suspend temporarily all
3854 resp_buf = phba->MBslimaddr;
3856 /* Disable the error attention */
3857 if (lpfc_readl(phba->HCregaddr, &hc_copy))
3859 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
3860 readl(phba->HCregaddr); /* flush */
3861 phba->link_flag |= LS_IGNORE_ERATT;
3863 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3865 if (ha_copy & HA_ERATT) {
3866 /* Clear Chip error bit */
3867 writel(HA_ERATT, phba->HAregaddr);
3868 phba->pport->stopped = 1;
3872 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
3873 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
3875 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
3876 mbox_buf = phba->MBslimaddr;
3877 writel(mbox, mbox_buf);
3879 for (i = 0; i < 50; i++) {
3880 if (lpfc_readl((resp_buf + 1), &resp_data))
3882 if (resp_data != ~(BARRIER_TEST_PATTERN))
3888 if (lpfc_readl((resp_buf + 1), &resp_data))
3890 if (resp_data != ~(BARRIER_TEST_PATTERN)) {
3891 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
3892 phba->pport->stopped)
3898 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
3900 for (i = 0; i < 500; i++) {
3901 if (lpfc_readl(resp_buf, &resp_data))
3903 if (resp_data != mbox)
3912 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3914 if (!(ha_copy & HA_ERATT))
3920 if (readl(phba->HAregaddr) & HA_ERATT) {
3921 writel(HA_ERATT, phba->HAregaddr);
3922 phba->pport->stopped = 1;
3926 phba->link_flag &= ~LS_IGNORE_ERATT;
3927 writel(hc_copy, phba->HCregaddr);
3928 readl(phba->HCregaddr); /* flush */
3932 * lpfc_sli_brdkill - Issue a kill_board mailbox command
3933 * @phba: Pointer to HBA context object.
3935 * This function issues a kill_board mailbox command and waits for
3936 * the error attention interrupt. This function is called for stopping
3937 * the firmware processing. The caller is not required to hold any
3938 * locks. This function calls lpfc_hba_down_post function to free
3939 * any pending commands after the kill. The function will return 1 when it
3940 * fails to kill the board else will return 0.
3943 lpfc_sli_brdkill(struct lpfc_hba *phba)
3945 struct lpfc_sli *psli;
3955 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3956 "0329 Kill HBA Data: x%x x%x\n",
3957 phba->pport->port_state, psli->sli_flag);
3959 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3963 /* Disable the error attention */
3964 spin_lock_irq(&phba->hbalock);
3965 if (lpfc_readl(phba->HCregaddr, &status)) {
3966 spin_unlock_irq(&phba->hbalock);
3967 mempool_free(pmb, phba->mbox_mem_pool);
3970 status &= ~HC_ERINT_ENA;
3971 writel(status, phba->HCregaddr);
3972 readl(phba->HCregaddr); /* flush */
3973 phba->link_flag |= LS_IGNORE_ERATT;
3974 spin_unlock_irq(&phba->hbalock);
3976 lpfc_kill_board(phba, pmb);
3977 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3978 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3980 if (retval != MBX_SUCCESS) {
3981 if (retval != MBX_BUSY)
3982 mempool_free(pmb, phba->mbox_mem_pool);
3983 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3984 "2752 KILL_BOARD command failed retval %d\n",
3986 spin_lock_irq(&phba->hbalock);
3987 phba->link_flag &= ~LS_IGNORE_ERATT;
3988 spin_unlock_irq(&phba->hbalock);
3992 spin_lock_irq(&phba->hbalock);
3993 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
3994 spin_unlock_irq(&phba->hbalock);
3996 mempool_free(pmb, phba->mbox_mem_pool);
3998 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
3999 * attention every 100ms for 3 seconds. If we don't get ERATT after
4000 * 3 seconds we still set HBA_ERROR state because the status of the
4001 * board is now undefined.
4003 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4005 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
4007 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4011 del_timer_sync(&psli->mbox_tmo);
4012 if (ha_copy & HA_ERATT) {
4013 writel(HA_ERATT, phba->HAregaddr);
4014 phba->pport->stopped = 1;
4016 spin_lock_irq(&phba->hbalock);
4017 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4018 psli->mbox_active = NULL;
4019 phba->link_flag &= ~LS_IGNORE_ERATT;
4020 spin_unlock_irq(&phba->hbalock);
4022 lpfc_hba_down_post(phba);
4023 phba->link_state = LPFC_HBA_ERROR;
4025 return ha_copy & HA_ERATT ? 0 : 1;
4029 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
4030 * @phba: Pointer to HBA context object.
4032 * This function resets the HBA by writing HC_INITFF to the control
4033 * register. After the HBA resets, this function resets all the iocb ring
4034 * indices. This function disables PCI layer parity checking during
4036 * This function returns 0 always.
4037 * The caller is not required to hold any locks.
4040 lpfc_sli_brdreset(struct lpfc_hba *phba)
4042 struct lpfc_sli *psli;
4043 struct lpfc_sli_ring *pring;
4050 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4051 "0325 Reset HBA Data: x%x x%x\n",
4052 phba->pport->port_state, psli->sli_flag);
4054 /* perform board reset */
4055 phba->fc_eventTag = 0;
4056 phba->link_events = 0;
4057 phba->pport->fc_myDID = 0;
4058 phba->pport->fc_prevDID = 0;
4060 /* Turn off parity checking and serr during the physical reset */
4061 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
4062 pci_write_config_word(phba->pcidev, PCI_COMMAND,
4064 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4066 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
4068 /* Now toggle INITFF bit in the Host Control Register */
4069 writel(HC_INITFF, phba->HCregaddr);
4071 readl(phba->HCregaddr); /* flush */
4072 writel(0, phba->HCregaddr);
4073 readl(phba->HCregaddr); /* flush */
4075 /* Restore PCI cmd register */
4076 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
4078 /* Initialize relevant SLI info */
4079 for (i = 0; i < psli->num_rings; i++) {
4080 pring = &psli->ring[i];
4082 pring->sli.sli3.rspidx = 0;
4083 pring->sli.sli3.next_cmdidx = 0;
4084 pring->sli.sli3.local_getidx = 0;
4085 pring->sli.sli3.cmdidx = 0;
4086 pring->missbufcnt = 0;
4089 phba->link_state = LPFC_WARM_START;
4094 * lpfc_sli4_brdreset - Reset a sli-4 HBA
4095 * @phba: Pointer to HBA context object.
4097 * This function resets a SLI4 HBA. This function disables PCI layer parity
4098 * checking during resets the device. The caller is not required to hold
4101 * This function returns 0 always.
4104 lpfc_sli4_brdreset(struct lpfc_hba *phba)
4106 struct lpfc_sli *psli = &phba->sli;
4111 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4112 "0295 Reset HBA Data: x%x x%x x%x\n",
4113 phba->pport->port_state, psli->sli_flag,
4116 /* perform board reset */
4117 phba->fc_eventTag = 0;
4118 phba->link_events = 0;
4119 phba->pport->fc_myDID = 0;
4120 phba->pport->fc_prevDID = 0;
4122 spin_lock_irq(&phba->hbalock);
4123 psli->sli_flag &= ~(LPFC_PROCESS_LA);
4124 phba->fcf.fcf_flag = 0;
4125 spin_unlock_irq(&phba->hbalock);
4127 /* SLI4 INTF 2: if FW dump is being taken skip INIT_PORT */
4128 if (phba->hba_flag & HBA_FW_DUMP_OP) {
4129 phba->hba_flag &= ~HBA_FW_DUMP_OP;
4133 /* Now physically reset the device */
4134 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4135 "0389 Performing PCI function reset!\n");
4137 /* Turn off parity checking and serr during the physical reset */
4138 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
4139 pci_write_config_word(phba->pcidev, PCI_COMMAND, (cfg_value &
4140 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4142 /* Perform FCoE PCI function reset before freeing queue memory */
4143 rc = lpfc_pci_function_reset(phba);
4144 lpfc_sli4_queue_destroy(phba);
4146 /* Restore PCI cmd register */
4147 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
4153 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
4154 * @phba: Pointer to HBA context object.
4156 * This function is called in the SLI initialization code path to
4157 * restart the HBA. The caller is not required to hold any lock.
4158 * This function writes MBX_RESTART mailbox command to the SLIM and
4159 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
4160 * function to free any pending commands. The function enables
4161 * POST only during the first initialization. The function returns zero.
4162 * The function does not guarantee completion of MBX_RESTART mailbox
4163 * command before the return of this function.
4166 lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
4169 struct lpfc_sli *psli;
4170 volatile uint32_t word0;
4171 void __iomem *to_slim;
4172 uint32_t hba_aer_enabled;
4174 spin_lock_irq(&phba->hbalock);
4176 /* Take PCIe device Advanced Error Reporting (AER) state */
4177 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4182 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4183 "0337 Restart HBA Data: x%x x%x\n",
4184 phba->pport->port_state, psli->sli_flag);
4187 mb = (MAILBOX_t *) &word0;
4188 mb->mbxCommand = MBX_RESTART;
4191 lpfc_reset_barrier(phba);
4193 to_slim = phba->MBslimaddr;
4194 writel(*(uint32_t *) mb, to_slim);
4195 readl(to_slim); /* flush */
4197 /* Only skip post after fc_ffinit is completed */
4198 if (phba->pport->port_state)
4199 word0 = 1; /* This is really setting up word1 */
4201 word0 = 0; /* This is really setting up word1 */
4202 to_slim = phba->MBslimaddr + sizeof (uint32_t);
4203 writel(*(uint32_t *) mb, to_slim);
4204 readl(to_slim); /* flush */
4206 lpfc_sli_brdreset(phba);
4207 phba->pport->stopped = 0;
4208 phba->link_state = LPFC_INIT_START;
4210 spin_unlock_irq(&phba->hbalock);
4212 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4213 psli->stats_start = get_seconds();
4215 /* Give the INITFF and Post time to settle. */
4218 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4219 if (hba_aer_enabled)
4220 pci_disable_pcie_error_reporting(phba->pcidev);
4222 lpfc_hba_down_post(phba);
4228 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
4229 * @phba: Pointer to HBA context object.
4231 * This function is called in the SLI initialization code path to restart
4232 * a SLI4 HBA. The caller is not required to hold any lock.
4233 * At the end of the function, it calls lpfc_hba_down_post function to
4234 * free any pending commands.
4237 lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
4239 struct lpfc_sli *psli = &phba->sli;
4240 uint32_t hba_aer_enabled;
4244 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4245 "0296 Restart HBA Data: x%x x%x\n",
4246 phba->pport->port_state, psli->sli_flag);
4248 /* Take PCIe device Advanced Error Reporting (AER) state */
4249 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4251 rc = lpfc_sli4_brdreset(phba);
4253 spin_lock_irq(&phba->hbalock);
4254 phba->pport->stopped = 0;
4255 phba->link_state = LPFC_INIT_START;
4257 spin_unlock_irq(&phba->hbalock);
4259 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4260 psli->stats_start = get_seconds();
4262 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4263 if (hba_aer_enabled)
4264 pci_disable_pcie_error_reporting(phba->pcidev);
4266 lpfc_hba_down_post(phba);
4272 * lpfc_sli_brdrestart - Wrapper func for restarting hba
4273 * @phba: Pointer to HBA context object.
4275 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
4276 * API jump table function pointer from the lpfc_hba struct.
4279 lpfc_sli_brdrestart(struct lpfc_hba *phba)
4281 return phba->lpfc_sli_brdrestart(phba);
4285 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
4286 * @phba: Pointer to HBA context object.
4288 * This function is called after a HBA restart to wait for successful
4289 * restart of the HBA. Successful restart of the HBA is indicated by
4290 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
4291 * iteration, the function will restart the HBA again. The function returns
4292 * zero if HBA successfully restarted else returns negative error code.
4295 lpfc_sli_chipset_init(struct lpfc_hba *phba)
4297 uint32_t status, i = 0;
4299 /* Read the HBA Host Status Register */
4300 if (lpfc_readl(phba->HSregaddr, &status))
4303 /* Check status register to see what current state is */
4305 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
4307 /* Check every 10ms for 10 retries, then every 100ms for 90
4308 * retries, then every 1 sec for 50 retires for a total of
4309 * ~60 seconds before reset the board again and check every
4310 * 1 sec for 50 retries. The up to 60 seconds before the
4311 * board ready is required by the Falcon FIPS zeroization
4312 * complete, and any reset the board in between shall cause
4313 * restart of zeroization, further delay the board ready.
4316 /* Adapter failed to init, timeout, status reg
4318 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4319 "0436 Adapter failed to init, "
4320 "timeout, status reg x%x, "
4321 "FW Data: A8 x%x AC x%x\n", status,
4322 readl(phba->MBslimaddr + 0xa8),
4323 readl(phba->MBslimaddr + 0xac));
4324 phba->link_state = LPFC_HBA_ERROR;
4328 /* Check to see if any errors occurred during init */
4329 if (status & HS_FFERM) {
4330 /* ERROR: During chipset initialization */
4331 /* Adapter failed to init, chipset, status reg
4333 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4334 "0437 Adapter failed to init, "
4335 "chipset, status reg x%x, "
4336 "FW Data: A8 x%x AC x%x\n", status,
4337 readl(phba->MBslimaddr + 0xa8),
4338 readl(phba->MBslimaddr + 0xac));
4339 phba->link_state = LPFC_HBA_ERROR;
4352 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4353 lpfc_sli_brdrestart(phba);
4355 /* Read the HBA Host Status Register */
4356 if (lpfc_readl(phba->HSregaddr, &status))
4360 /* Check to see if any errors occurred during init */
4361 if (status & HS_FFERM) {
4362 /* ERROR: During chipset initialization */
4363 /* Adapter failed to init, chipset, status reg <status> */
4364 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4365 "0438 Adapter failed to init, chipset, "
4367 "FW Data: A8 x%x AC x%x\n", status,
4368 readl(phba->MBslimaddr + 0xa8),
4369 readl(phba->MBslimaddr + 0xac));
4370 phba->link_state = LPFC_HBA_ERROR;
4374 /* Clear all interrupt enable conditions */
4375 writel(0, phba->HCregaddr);
4376 readl(phba->HCregaddr); /* flush */
4378 /* setup host attn register */
4379 writel(0xffffffff, phba->HAregaddr);
4380 readl(phba->HAregaddr); /* flush */
4385 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
4387 * This function calculates and returns the number of HBQs required to be
4391 lpfc_sli_hbq_count(void)
4393 return ARRAY_SIZE(lpfc_hbq_defs);
4397 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
4399 * This function adds the number of hbq entries in every HBQ to get
4400 * the total number of hbq entries required for the HBA and returns
4404 lpfc_sli_hbq_entry_count(void)
4406 int hbq_count = lpfc_sli_hbq_count();
4410 for (i = 0; i < hbq_count; ++i)
4411 count += lpfc_hbq_defs[i]->entry_count;
4416 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
4418 * This function calculates amount of memory required for all hbq entries
4419 * to be configured and returns the total memory required.
4422 lpfc_sli_hbq_size(void)
4424 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
4428 * lpfc_sli_hbq_setup - configure and initialize HBQs
4429 * @phba: Pointer to HBA context object.
4431 * This function is called during the SLI initialization to configure
4432 * all the HBQs and post buffers to the HBQ. The caller is not
4433 * required to hold any locks. This function will return zero if successful
4434 * else it will return negative error code.
4437 lpfc_sli_hbq_setup(struct lpfc_hba *phba)
4439 int hbq_count = lpfc_sli_hbq_count();
4443 uint32_t hbq_entry_index;
4445 /* Get a Mailbox buffer to setup mailbox
4446 * commands for HBA initialization
4448 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4455 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
4456 phba->link_state = LPFC_INIT_MBX_CMDS;
4457 phba->hbq_in_use = 1;
4459 hbq_entry_index = 0;
4460 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
4461 phba->hbqs[hbqno].next_hbqPutIdx = 0;
4462 phba->hbqs[hbqno].hbqPutIdx = 0;
4463 phba->hbqs[hbqno].local_hbqGetIdx = 0;
4464 phba->hbqs[hbqno].entry_count =
4465 lpfc_hbq_defs[hbqno]->entry_count;
4466 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
4467 hbq_entry_index, pmb);
4468 hbq_entry_index += phba->hbqs[hbqno].entry_count;
4470 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
4471 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
4472 mbxStatus <status>, ring <num> */
4474 lpfc_printf_log(phba, KERN_ERR,
4475 LOG_SLI | LOG_VPORT,
4476 "1805 Adapter failed to init. "
4477 "Data: x%x x%x x%x\n",
4479 pmbox->mbxStatus, hbqno);
4481 phba->link_state = LPFC_HBA_ERROR;
4482 mempool_free(pmb, phba->mbox_mem_pool);
4486 phba->hbq_count = hbq_count;
4488 mempool_free(pmb, phba->mbox_mem_pool);
4490 /* Initially populate or replenish the HBQs */
4491 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
4492 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
4497 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
4498 * @phba: Pointer to HBA context object.
4500 * This function is called during the SLI initialization to configure
4501 * all the HBQs and post buffers to the HBQ. The caller is not
4502 * required to hold any locks. This function will return zero if successful
4503 * else it will return negative error code.
4506 lpfc_sli4_rb_setup(struct lpfc_hba *phba)
4508 phba->hbq_in_use = 1;
4509 phba->hbqs[0].entry_count = lpfc_hbq_defs[0]->entry_count;
4510 phba->hbq_count = 1;
4511 /* Initially populate or replenish the HBQs */
4512 lpfc_sli_hbqbuf_init_hbqs(phba, 0);
4517 * lpfc_sli_config_port - Issue config port mailbox command
4518 * @phba: Pointer to HBA context object.
4519 * @sli_mode: sli mode - 2/3
4521 * This function is called by the sli intialization code path
4522 * to issue config_port mailbox command. This function restarts the
4523 * HBA firmware and issues a config_port mailbox command to configure
4524 * the SLI interface in the sli mode specified by sli_mode
4525 * variable. The caller is not required to hold any locks.
4526 * The function returns 0 if successful, else returns negative error
4530 lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
4533 uint32_t resetcount = 0, rc = 0, done = 0;
4535 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4537 phba->link_state = LPFC_HBA_ERROR;
4541 phba->sli_rev = sli_mode;
4542 while (resetcount < 2 && !done) {
4543 spin_lock_irq(&phba->hbalock);
4544 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
4545 spin_unlock_irq(&phba->hbalock);
4546 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4547 lpfc_sli_brdrestart(phba);
4548 rc = lpfc_sli_chipset_init(phba);
4552 spin_lock_irq(&phba->hbalock);
4553 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4554 spin_unlock_irq(&phba->hbalock);
4557 /* Call pre CONFIG_PORT mailbox command initialization. A
4558 * value of 0 means the call was successful. Any other
4559 * nonzero value is a failure, but if ERESTART is returned,
4560 * the driver may reset the HBA and try again.
4562 rc = lpfc_config_port_prep(phba);
4563 if (rc == -ERESTART) {
4564 phba->link_state = LPFC_LINK_UNKNOWN;
4569 phba->link_state = LPFC_INIT_MBX_CMDS;
4570 lpfc_config_port(phba, pmb);
4571 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
4572 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
4573 LPFC_SLI3_HBQ_ENABLED |
4574 LPFC_SLI3_CRP_ENABLED |
4575 LPFC_SLI3_BG_ENABLED |
4576 LPFC_SLI3_DSS_ENABLED);
4577 if (rc != MBX_SUCCESS) {
4578 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4579 "0442 Adapter failed to init, mbxCmd x%x "
4580 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
4581 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
4582 spin_lock_irq(&phba->hbalock);
4583 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
4584 spin_unlock_irq(&phba->hbalock);
4587 /* Allow asynchronous mailbox command to go through */
4588 spin_lock_irq(&phba->hbalock);
4589 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
4590 spin_unlock_irq(&phba->hbalock);
4593 if ((pmb->u.mb.un.varCfgPort.casabt == 1) &&
4594 (pmb->u.mb.un.varCfgPort.gasabt == 0))
4595 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4596 "3110 Port did not grant ASABT\n");
4601 goto do_prep_failed;
4603 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
4604 if (!pmb->u.mb.un.varCfgPort.cMA) {
4606 goto do_prep_failed;
4608 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
4609 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
4610 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
4611 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
4612 phba->max_vpi : phba->max_vports;
4616 phba->fips_level = 0;
4617 phba->fips_spec_rev = 0;
4618 if (pmb->u.mb.un.varCfgPort.gdss) {
4619 phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
4620 phba->fips_level = pmb->u.mb.un.varCfgPort.fips_level;
4621 phba->fips_spec_rev = pmb->u.mb.un.varCfgPort.fips_rev;
4622 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4623 "2850 Security Crypto Active. FIPS x%d "
4625 phba->fips_level, phba->fips_spec_rev);
4627 if (pmb->u.mb.un.varCfgPort.sec_err) {
4628 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4629 "2856 Config Port Security Crypto "
4631 pmb->u.mb.un.varCfgPort.sec_err);
4633 if (pmb->u.mb.un.varCfgPort.gerbm)
4634 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
4635 if (pmb->u.mb.un.varCfgPort.gcrp)
4636 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
4638 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
4639 phba->port_gp = phba->mbox->us.s3_pgp.port;
4641 if (phba->cfg_enable_bg) {
4642 if (pmb->u.mb.un.varCfgPort.gbg)
4643 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
4645 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4646 "0443 Adapter did not grant "
4650 phba->hbq_get = NULL;
4651 phba->port_gp = phba->mbox->us.s2.port;
4655 mempool_free(pmb, phba->mbox_mem_pool);
4661 * lpfc_sli_hba_setup - SLI intialization function
4662 * @phba: Pointer to HBA context object.
4664 * This function is the main SLI intialization function. This function
4665 * is called by the HBA intialization code, HBA reset code and HBA
4666 * error attention handler code. Caller is not required to hold any
4667 * locks. This function issues config_port mailbox command to configure
4668 * the SLI, setup iocb rings and HBQ rings. In the end the function
4669 * calls the config_port_post function to issue init_link mailbox
4670 * command and to start the discovery. The function will return zero
4671 * if successful, else it will return negative error code.
4674 lpfc_sli_hba_setup(struct lpfc_hba *phba)
4680 switch (phba->cfg_sli_mode) {
4682 if (phba->cfg_enable_npiv) {
4683 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4684 "1824 NPIV enabled: Override sli_mode "
4685 "parameter (%d) to auto (0).\n",
4686 phba->cfg_sli_mode);
4695 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4696 "1819 Unrecognized sli_mode parameter: %d.\n",
4697 phba->cfg_sli_mode);
4701 phba->fcp_embed_io = 0; /* SLI4 FC support only */
4703 rc = lpfc_sli_config_port(phba, mode);
4705 if (rc && phba->cfg_sli_mode == 3)
4706 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4707 "1820 Unable to select SLI-3. "
4708 "Not supported by adapter.\n");
4709 if (rc && mode != 2)
4710 rc = lpfc_sli_config_port(phba, 2);
4711 else if (rc && mode == 2)
4712 rc = lpfc_sli_config_port(phba, 3);
4714 goto lpfc_sli_hba_setup_error;
4716 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4717 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
4718 rc = pci_enable_pcie_error_reporting(phba->pcidev);
4720 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4721 "2709 This device supports "
4722 "Advanced Error Reporting (AER)\n");
4723 spin_lock_irq(&phba->hbalock);
4724 phba->hba_flag |= HBA_AER_ENABLED;
4725 spin_unlock_irq(&phba->hbalock);
4727 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4728 "2708 This device does not support "
4729 "Advanced Error Reporting (AER): %d\n",
4731 phba->cfg_aer_support = 0;
4735 if (phba->sli_rev == 3) {
4736 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
4737 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
4739 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
4740 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
4741 phba->sli3_options = 0;
4744 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4745 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
4746 phba->sli_rev, phba->max_vpi);
4747 rc = lpfc_sli_ring_map(phba);
4750 goto lpfc_sli_hba_setup_error;
4752 /* Initialize VPIs. */
4753 if (phba->sli_rev == LPFC_SLI_REV3) {
4755 * The VPI bitmask and physical ID array are allocated
4756 * and initialized once only - at driver load. A port
4757 * reset doesn't need to reinitialize this memory.
4759 if ((phba->vpi_bmask == NULL) && (phba->vpi_ids == NULL)) {
4760 longs = (phba->max_vpi + BITS_PER_LONG) / BITS_PER_LONG;
4761 phba->vpi_bmask = kzalloc(longs * sizeof(unsigned long),
4763 if (!phba->vpi_bmask) {
4765 goto lpfc_sli_hba_setup_error;
4768 phba->vpi_ids = kzalloc(
4769 (phba->max_vpi+1) * sizeof(uint16_t),
4771 if (!phba->vpi_ids) {
4772 kfree(phba->vpi_bmask);
4774 goto lpfc_sli_hba_setup_error;
4776 for (i = 0; i < phba->max_vpi; i++)
4777 phba->vpi_ids[i] = i;
4782 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
4783 rc = lpfc_sli_hbq_setup(phba);
4785 goto lpfc_sli_hba_setup_error;
4787 spin_lock_irq(&phba->hbalock);
4788 phba->sli.sli_flag |= LPFC_PROCESS_LA;
4789 spin_unlock_irq(&phba->hbalock);
4791 rc = lpfc_config_port_post(phba);
4793 goto lpfc_sli_hba_setup_error;
4797 lpfc_sli_hba_setup_error:
4798 phba->link_state = LPFC_HBA_ERROR;
4799 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4800 "0445 Firmware initialization failed\n");
4805 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
4806 * @phba: Pointer to HBA context object.
4807 * @mboxq: mailbox pointer.
4808 * This function issue a dump mailbox command to read config region
4809 * 23 and parse the records in the region and populate driver
4813 lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba)
4815 LPFC_MBOXQ_t *mboxq;
4816 struct lpfc_dmabuf *mp;
4817 struct lpfc_mqe *mqe;
4818 uint32_t data_length;
4821 /* Program the default value of vlan_id and fc_map */
4822 phba->valid_vlan = 0;
4823 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4824 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4825 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4827 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4831 mqe = &mboxq->u.mqe;
4832 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq)) {
4834 goto out_free_mboxq;
4837 mp = (struct lpfc_dmabuf *) mboxq->context1;
4838 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4840 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4841 "(%d):2571 Mailbox cmd x%x Status x%x "
4842 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4843 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4844 "CQ: x%x x%x x%x x%x\n",
4845 mboxq->vport ? mboxq->vport->vpi : 0,
4846 bf_get(lpfc_mqe_command, mqe),
4847 bf_get(lpfc_mqe_status, mqe),
4848 mqe->un.mb_words[0], mqe->un.mb_words[1],
4849 mqe->un.mb_words[2], mqe->un.mb_words[3],
4850 mqe->un.mb_words[4], mqe->un.mb_words[5],
4851 mqe->un.mb_words[6], mqe->un.mb_words[7],
4852 mqe->un.mb_words[8], mqe->un.mb_words[9],
4853 mqe->un.mb_words[10], mqe->un.mb_words[11],
4854 mqe->un.mb_words[12], mqe->un.mb_words[13],
4855 mqe->un.mb_words[14], mqe->un.mb_words[15],
4856 mqe->un.mb_words[16], mqe->un.mb_words[50],
4858 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
4859 mboxq->mcqe.trailer);
4862 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4865 goto out_free_mboxq;
4867 data_length = mqe->un.mb_words[5];
4868 if (data_length > DMP_RGN23_SIZE) {
4869 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4872 goto out_free_mboxq;
4875 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
4876 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4881 mempool_free(mboxq, phba->mbox_mem_pool);
4886 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
4887 * @phba: pointer to lpfc hba data structure.
4888 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
4889 * @vpd: pointer to the memory to hold resulting port vpd data.
4890 * @vpd_size: On input, the number of bytes allocated to @vpd.
4891 * On output, the number of data bytes in @vpd.
4893 * This routine executes a READ_REV SLI4 mailbox command. In
4894 * addition, this routine gets the port vpd data.
4898 * -ENOMEM - could not allocated memory.
4901 lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
4902 uint8_t *vpd, uint32_t *vpd_size)
4906 struct lpfc_dmabuf *dmabuf;
4907 struct lpfc_mqe *mqe;
4909 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4914 * Get a DMA buffer for the vpd data resulting from the READ_REV
4917 dma_size = *vpd_size;
4918 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, dma_size,
4919 &dmabuf->phys, GFP_KERNEL);
4920 if (!dmabuf->virt) {
4926 * The SLI4 implementation of READ_REV conflicts at word1,
4927 * bits 31:16 and SLI4 adds vpd functionality not present
4928 * in SLI3. This code corrects the conflicts.
4930 lpfc_read_rev(phba, mboxq);
4931 mqe = &mboxq->u.mqe;
4932 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
4933 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
4934 mqe->un.read_rev.word1 &= 0x0000FFFF;
4935 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
4936 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
4938 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4940 dma_free_coherent(&phba->pcidev->dev, dma_size,
4941 dmabuf->virt, dmabuf->phys);
4947 * The available vpd length cannot be bigger than the
4948 * DMA buffer passed to the port. Catch the less than
4949 * case and update the caller's size.
4951 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
4952 *vpd_size = mqe->un.read_rev.avail_vpd_len;
4954 memcpy(vpd, dmabuf->virt, *vpd_size);
4956 dma_free_coherent(&phba->pcidev->dev, dma_size,
4957 dmabuf->virt, dmabuf->phys);
4963 * lpfc_sli4_retrieve_pport_name - Retrieve SLI4 device physical port name
4964 * @phba: pointer to lpfc hba data structure.
4966 * This routine retrieves SLI4 device physical port name this PCI function
4971 * otherwise - failed to retrieve physical port name
4974 lpfc_sli4_retrieve_pport_name(struct lpfc_hba *phba)
4976 LPFC_MBOXQ_t *mboxq;
4977 struct lpfc_mbx_get_cntl_attributes *mbx_cntl_attr;
4978 struct lpfc_controller_attribute *cntl_attr;
4979 struct lpfc_mbx_get_port_name *get_port_name;
4980 void *virtaddr = NULL;
4981 uint32_t alloclen, reqlen;
4982 uint32_t shdr_status, shdr_add_status;
4983 union lpfc_sli4_cfg_shdr *shdr;
4984 char cport_name = 0;
4987 /* We assume nothing at this point */
4988 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
4989 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_NON;
4991 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4994 /* obtain link type and link number via READ_CONFIG */
4995 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
4996 lpfc_sli4_read_config(phba);
4997 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL)
4998 goto retrieve_ppname;
5000 /* obtain link type and link number via COMMON_GET_CNTL_ATTRIBUTES */
5001 reqlen = sizeof(struct lpfc_mbx_get_cntl_attributes);
5002 alloclen = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5003 LPFC_MBOX_OPCODE_GET_CNTL_ATTRIBUTES, reqlen,
5004 LPFC_SLI4_MBX_NEMBED);
5005 if (alloclen < reqlen) {
5006 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5007 "3084 Allocated DMA memory size (%d) is "
5008 "less than the requested DMA memory size "
5009 "(%d)\n", alloclen, reqlen);
5011 goto out_free_mboxq;
5013 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5014 virtaddr = mboxq->sge_array->addr[0];
5015 mbx_cntl_attr = (struct lpfc_mbx_get_cntl_attributes *)virtaddr;
5016 shdr = &mbx_cntl_attr->cfg_shdr;
5017 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5018 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5019 if (shdr_status || shdr_add_status || rc) {
5020 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5021 "3085 Mailbox x%x (x%x/x%x) failed, "
5022 "rc:x%x, status:x%x, add_status:x%x\n",
5023 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5024 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
5025 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
5026 rc, shdr_status, shdr_add_status);
5028 goto out_free_mboxq;
5030 cntl_attr = &mbx_cntl_attr->cntl_attr;
5031 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
5032 phba->sli4_hba.lnk_info.lnk_tp =
5033 bf_get(lpfc_cntl_attr_lnk_type, cntl_attr);
5034 phba->sli4_hba.lnk_info.lnk_no =
5035 bf_get(lpfc_cntl_attr_lnk_numb, cntl_attr);
5036 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5037 "3086 lnk_type:%d, lnk_numb:%d\n",
5038 phba->sli4_hba.lnk_info.lnk_tp,
5039 phba->sli4_hba.lnk_info.lnk_no);
5042 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5043 LPFC_MBOX_OPCODE_GET_PORT_NAME,
5044 sizeof(struct lpfc_mbx_get_port_name) -
5045 sizeof(struct lpfc_sli4_cfg_mhdr),
5046 LPFC_SLI4_MBX_EMBED);
5047 get_port_name = &mboxq->u.mqe.un.get_port_name;
5048 shdr = (union lpfc_sli4_cfg_shdr *)&get_port_name->header.cfg_shdr;
5049 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_OPCODE_VERSION_1);
5050 bf_set(lpfc_mbx_get_port_name_lnk_type, &get_port_name->u.request,
5051 phba->sli4_hba.lnk_info.lnk_tp);
5052 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5053 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5054 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5055 if (shdr_status || shdr_add_status || rc) {
5056 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5057 "3087 Mailbox x%x (x%x/x%x) failed: "
5058 "rc:x%x, status:x%x, add_status:x%x\n",
5059 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5060 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
5061 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
5062 rc, shdr_status, shdr_add_status);
5064 goto out_free_mboxq;
5066 switch (phba->sli4_hba.lnk_info.lnk_no) {
5067 case LPFC_LINK_NUMBER_0:
5068 cport_name = bf_get(lpfc_mbx_get_port_name_name0,
5069 &get_port_name->u.response);
5070 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5072 case LPFC_LINK_NUMBER_1:
5073 cport_name = bf_get(lpfc_mbx_get_port_name_name1,
5074 &get_port_name->u.response);
5075 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5077 case LPFC_LINK_NUMBER_2:
5078 cport_name = bf_get(lpfc_mbx_get_port_name_name2,
5079 &get_port_name->u.response);
5080 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5082 case LPFC_LINK_NUMBER_3:
5083 cport_name = bf_get(lpfc_mbx_get_port_name_name3,
5084 &get_port_name->u.response);
5085 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5091 if (phba->sli4_hba.pport_name_sta == LPFC_SLI4_PPNAME_GET) {
5092 phba->Port[0] = cport_name;
5093 phba->Port[1] = '\0';
5094 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5095 "3091 SLI get port name: %s\n", phba->Port);
5099 if (rc != MBX_TIMEOUT) {
5100 if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
5101 lpfc_sli4_mbox_cmd_free(phba, mboxq);
5103 mempool_free(mboxq, phba->mbox_mem_pool);
5109 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
5110 * @phba: pointer to lpfc hba data structure.
5112 * This routine is called to explicitly arm the SLI4 device's completion and
5116 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
5120 lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM);
5121 lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM);
5123 if (phba->sli4_hba.fcp_cq) {
5125 lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[fcp_eqidx],
5127 } while (++fcp_eqidx < phba->cfg_fcp_io_channel);
5131 lpfc_sli4_cq_release(phba->sli4_hba.oas_cq, LPFC_QUEUE_REARM);
5133 if (phba->sli4_hba.hba_eq) {
5134 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel;
5136 lpfc_sli4_eq_release(phba->sli4_hba.hba_eq[fcp_eqidx],
5141 lpfc_sli4_eq_release(phba->sli4_hba.fof_eq, LPFC_QUEUE_REARM);
5145 * lpfc_sli4_get_avail_extnt_rsrc - Get available resource extent count.
5146 * @phba: Pointer to HBA context object.
5147 * @type: The resource extent type.
5148 * @extnt_count: buffer to hold port available extent count.
5149 * @extnt_size: buffer to hold element count per extent.
5151 * This function calls the port and retrievs the number of available
5152 * extents and their size for a particular extent type.
5154 * Returns: 0 if successful. Nonzero otherwise.
5157 lpfc_sli4_get_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type,
5158 uint16_t *extnt_count, uint16_t *extnt_size)
5163 struct lpfc_mbx_get_rsrc_extent_info *rsrc_info;
5166 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5170 /* Find out how many extents are available for this resource type */
5171 length = (sizeof(struct lpfc_mbx_get_rsrc_extent_info) -
5172 sizeof(struct lpfc_sli4_cfg_mhdr));
5173 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5174 LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO,
5175 length, LPFC_SLI4_MBX_EMBED);
5177 /* Send an extents count of 0 - the GET doesn't use it. */
5178 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5179 LPFC_SLI4_MBX_EMBED);
5185 if (!phba->sli4_hba.intr_enable)
5186 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5188 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5189 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5196 rsrc_info = &mbox->u.mqe.un.rsrc_extent_info;
5197 if (bf_get(lpfc_mbox_hdr_status,
5198 &rsrc_info->header.cfg_shdr.response)) {
5199 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5200 "2930 Failed to get resource extents "
5201 "Status 0x%x Add'l Status 0x%x\n",
5202 bf_get(lpfc_mbox_hdr_status,
5203 &rsrc_info->header.cfg_shdr.response),
5204 bf_get(lpfc_mbox_hdr_add_status,
5205 &rsrc_info->header.cfg_shdr.response));
5210 *extnt_count = bf_get(lpfc_mbx_get_rsrc_extent_info_cnt,
5212 *extnt_size = bf_get(lpfc_mbx_get_rsrc_extent_info_size,
5215 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5216 "3162 Retrieved extents type-%d from port: count:%d, "
5217 "size:%d\n", type, *extnt_count, *extnt_size);
5220 mempool_free(mbox, phba->mbox_mem_pool);
5225 * lpfc_sli4_chk_avail_extnt_rsrc - Check for available SLI4 resource extents.
5226 * @phba: Pointer to HBA context object.
5227 * @type: The extent type to check.
5229 * This function reads the current available extents from the port and checks
5230 * if the extent count or extent size has changed since the last access.
5231 * Callers use this routine post port reset to understand if there is a
5232 * extent reprovisioning requirement.
5235 * -Error: error indicates problem.
5236 * 1: Extent count or size has changed.
5240 lpfc_sli4_chk_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type)
5242 uint16_t curr_ext_cnt, rsrc_ext_cnt;
5243 uint16_t size_diff, rsrc_ext_size;
5245 struct lpfc_rsrc_blks *rsrc_entry;
5246 struct list_head *rsrc_blk_list = NULL;
5250 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5257 case LPFC_RSC_TYPE_FCOE_RPI:
5258 rsrc_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5260 case LPFC_RSC_TYPE_FCOE_VPI:
5261 rsrc_blk_list = &phba->lpfc_vpi_blk_list;
5263 case LPFC_RSC_TYPE_FCOE_XRI:
5264 rsrc_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5266 case LPFC_RSC_TYPE_FCOE_VFI:
5267 rsrc_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5273 list_for_each_entry(rsrc_entry, rsrc_blk_list, list) {
5275 if (rsrc_entry->rsrc_size != rsrc_ext_size)
5279 if (curr_ext_cnt != rsrc_ext_cnt || size_diff != 0)
5286 * lpfc_sli4_cfg_post_extnts -
5287 * @phba: Pointer to HBA context object.
5288 * @extnt_cnt - number of available extents.
5289 * @type - the extent type (rpi, xri, vfi, vpi).
5290 * @emb - buffer to hold either MBX_EMBED or MBX_NEMBED operation.
5291 * @mbox - pointer to the caller's allocated mailbox structure.
5293 * This function executes the extents allocation request. It also
5294 * takes care of the amount of memory needed to allocate or get the
5295 * allocated extents. It is the caller's responsibility to evaluate
5299 * -Error: Error value describes the condition found.
5303 lpfc_sli4_cfg_post_extnts(struct lpfc_hba *phba, uint16_t extnt_cnt,
5304 uint16_t type, bool *emb, LPFC_MBOXQ_t *mbox)
5309 uint32_t alloc_len, mbox_tmo;
5311 /* Calculate the total requested length of the dma memory */
5312 req_len = extnt_cnt * sizeof(uint16_t);
5315 * Calculate the size of an embedded mailbox. The uint32_t
5316 * accounts for extents-specific word.
5318 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
5322 * Presume the allocation and response will fit into an embedded
5323 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5325 *emb = LPFC_SLI4_MBX_EMBED;
5326 if (req_len > emb_len) {
5327 req_len = extnt_cnt * sizeof(uint16_t) +
5328 sizeof(union lpfc_sli4_cfg_shdr) +
5330 *emb = LPFC_SLI4_MBX_NEMBED;
5333 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5334 LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT,
5336 if (alloc_len < req_len) {
5337 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5338 "2982 Allocated DMA memory size (x%x) is "
5339 "less than the requested DMA memory "
5340 "size (x%x)\n", alloc_len, req_len);
5343 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, extnt_cnt, type, *emb);
5347 if (!phba->sli4_hba.intr_enable)
5348 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5350 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5351 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5360 * lpfc_sli4_alloc_extent - Allocate an SLI4 resource extent.
5361 * @phba: Pointer to HBA context object.
5362 * @type: The resource extent type to allocate.
5364 * This function allocates the number of elements for the specified
5368 lpfc_sli4_alloc_extent(struct lpfc_hba *phba, uint16_t type)
5371 uint16_t rsrc_id_cnt, rsrc_cnt, rsrc_size;
5372 uint16_t rsrc_id, rsrc_start, j, k;
5375 unsigned long longs;
5376 unsigned long *bmask;
5377 struct lpfc_rsrc_blks *rsrc_blks;
5380 struct lpfc_id_range *id_array = NULL;
5381 void *virtaddr = NULL;
5382 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5383 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5384 struct list_head *ext_blk_list;
5386 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5392 if ((rsrc_cnt == 0) || (rsrc_size == 0)) {
5393 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5394 "3009 No available Resource Extents "
5395 "for resource type 0x%x: Count: 0x%x, "
5396 "Size 0x%x\n", type, rsrc_cnt,
5401 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_INIT | LOG_SLI,
5402 "2903 Post resource extents type-0x%x: "
5403 "count:%d, size %d\n", type, rsrc_cnt, rsrc_size);
5405 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5409 rc = lpfc_sli4_cfg_post_extnts(phba, rsrc_cnt, type, &emb, mbox);
5416 * Figure out where the response is located. Then get local pointers
5417 * to the response data. The port does not guarantee to respond to
5418 * all extents counts request so update the local variable with the
5419 * allocated count from the port.
5421 if (emb == LPFC_SLI4_MBX_EMBED) {
5422 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
5423 id_array = &rsrc_ext->u.rsp.id[0];
5424 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
5426 virtaddr = mbox->sge_array->addr[0];
5427 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
5428 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
5429 id_array = &n_rsrc->id;
5432 longs = ((rsrc_cnt * rsrc_size) + BITS_PER_LONG - 1) / BITS_PER_LONG;
5433 rsrc_id_cnt = rsrc_cnt * rsrc_size;
5436 * Based on the resource size and count, correct the base and max
5439 length = sizeof(struct lpfc_rsrc_blks);
5441 case LPFC_RSC_TYPE_FCOE_RPI:
5442 phba->sli4_hba.rpi_bmask = kzalloc(longs *
5443 sizeof(unsigned long),
5445 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5449 phba->sli4_hba.rpi_ids = kzalloc(rsrc_id_cnt *
5452 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5453 kfree(phba->sli4_hba.rpi_bmask);
5459 * The next_rpi was initialized with the maximum available
5460 * count but the port may allocate a smaller number. Catch
5461 * that case and update the next_rpi.
5463 phba->sli4_hba.next_rpi = rsrc_id_cnt;
5465 /* Initialize local ptrs for common extent processing later. */
5466 bmask = phba->sli4_hba.rpi_bmask;
5467 ids = phba->sli4_hba.rpi_ids;
5468 ext_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5470 case LPFC_RSC_TYPE_FCOE_VPI:
5471 phba->vpi_bmask = kzalloc(longs *
5472 sizeof(unsigned long),
5474 if (unlikely(!phba->vpi_bmask)) {
5478 phba->vpi_ids = kzalloc(rsrc_id_cnt *
5481 if (unlikely(!phba->vpi_ids)) {
5482 kfree(phba->vpi_bmask);
5487 /* Initialize local ptrs for common extent processing later. */
5488 bmask = phba->vpi_bmask;
5489 ids = phba->vpi_ids;
5490 ext_blk_list = &phba->lpfc_vpi_blk_list;
5492 case LPFC_RSC_TYPE_FCOE_XRI:
5493 phba->sli4_hba.xri_bmask = kzalloc(longs *
5494 sizeof(unsigned long),
5496 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5500 phba->sli4_hba.max_cfg_param.xri_used = 0;
5501 phba->sli4_hba.xri_ids = kzalloc(rsrc_id_cnt *
5504 if (unlikely(!phba->sli4_hba.xri_ids)) {
5505 kfree(phba->sli4_hba.xri_bmask);
5510 /* Initialize local ptrs for common extent processing later. */
5511 bmask = phba->sli4_hba.xri_bmask;
5512 ids = phba->sli4_hba.xri_ids;
5513 ext_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5515 case LPFC_RSC_TYPE_FCOE_VFI:
5516 phba->sli4_hba.vfi_bmask = kzalloc(longs *
5517 sizeof(unsigned long),
5519 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5523 phba->sli4_hba.vfi_ids = kzalloc(rsrc_id_cnt *
5526 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5527 kfree(phba->sli4_hba.vfi_bmask);
5532 /* Initialize local ptrs for common extent processing later. */
5533 bmask = phba->sli4_hba.vfi_bmask;
5534 ids = phba->sli4_hba.vfi_ids;
5535 ext_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5538 /* Unsupported Opcode. Fail call. */
5542 ext_blk_list = NULL;
5547 * Complete initializing the extent configuration with the
5548 * allocated ids assigned to this function. The bitmask serves
5549 * as an index into the array and manages the available ids. The
5550 * array just stores the ids communicated to the port via the wqes.
5552 for (i = 0, j = 0, k = 0; i < rsrc_cnt; i++) {
5554 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_0,
5557 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_1,
5560 rsrc_blks = kzalloc(length, GFP_KERNEL);
5561 if (unlikely(!rsrc_blks)) {
5567 rsrc_blks->rsrc_start = rsrc_id;
5568 rsrc_blks->rsrc_size = rsrc_size;
5569 list_add_tail(&rsrc_blks->list, ext_blk_list);
5570 rsrc_start = rsrc_id;
5571 if ((type == LPFC_RSC_TYPE_FCOE_XRI) && (j == 0))
5572 phba->sli4_hba.scsi_xri_start = rsrc_start +
5573 lpfc_sli4_get_els_iocb_cnt(phba);
5575 while (rsrc_id < (rsrc_start + rsrc_size)) {
5580 /* Entire word processed. Get next word.*/
5585 lpfc_sli4_mbox_cmd_free(phba, mbox);
5590 * lpfc_sli4_dealloc_extent - Deallocate an SLI4 resource extent.
5591 * @phba: Pointer to HBA context object.
5592 * @type: the extent's type.
5594 * This function deallocates all extents of a particular resource type.
5595 * SLI4 does not allow for deallocating a particular extent range. It
5596 * is the caller's responsibility to release all kernel memory resources.
5599 lpfc_sli4_dealloc_extent(struct lpfc_hba *phba, uint16_t type)
5602 uint32_t length, mbox_tmo = 0;
5604 struct lpfc_mbx_dealloc_rsrc_extents *dealloc_rsrc;
5605 struct lpfc_rsrc_blks *rsrc_blk, *rsrc_blk_next;
5607 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5612 * This function sends an embedded mailbox because it only sends the
5613 * the resource type. All extents of this type are released by the
5616 length = (sizeof(struct lpfc_mbx_dealloc_rsrc_extents) -
5617 sizeof(struct lpfc_sli4_cfg_mhdr));
5618 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5619 LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT,
5620 length, LPFC_SLI4_MBX_EMBED);
5622 /* Send an extents count of 0 - the dealloc doesn't use it. */
5623 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5624 LPFC_SLI4_MBX_EMBED);
5629 if (!phba->sli4_hba.intr_enable)
5630 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5632 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5633 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5640 dealloc_rsrc = &mbox->u.mqe.un.dealloc_rsrc_extents;
5641 if (bf_get(lpfc_mbox_hdr_status,
5642 &dealloc_rsrc->header.cfg_shdr.response)) {
5643 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5644 "2919 Failed to release resource extents "
5645 "for type %d - Status 0x%x Add'l Status 0x%x. "
5646 "Resource memory not released.\n",
5648 bf_get(lpfc_mbox_hdr_status,
5649 &dealloc_rsrc->header.cfg_shdr.response),
5650 bf_get(lpfc_mbox_hdr_add_status,
5651 &dealloc_rsrc->header.cfg_shdr.response));
5656 /* Release kernel memory resources for the specific type. */
5658 case LPFC_RSC_TYPE_FCOE_VPI:
5659 kfree(phba->vpi_bmask);
5660 kfree(phba->vpi_ids);
5661 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5662 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5663 &phba->lpfc_vpi_blk_list, list) {
5664 list_del_init(&rsrc_blk->list);
5667 phba->sli4_hba.max_cfg_param.vpi_used = 0;
5669 case LPFC_RSC_TYPE_FCOE_XRI:
5670 kfree(phba->sli4_hba.xri_bmask);
5671 kfree(phba->sli4_hba.xri_ids);
5672 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5673 &phba->sli4_hba.lpfc_xri_blk_list, list) {
5674 list_del_init(&rsrc_blk->list);
5678 case LPFC_RSC_TYPE_FCOE_VFI:
5679 kfree(phba->sli4_hba.vfi_bmask);
5680 kfree(phba->sli4_hba.vfi_ids);
5681 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5682 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5683 &phba->sli4_hba.lpfc_vfi_blk_list, list) {
5684 list_del_init(&rsrc_blk->list);
5688 case LPFC_RSC_TYPE_FCOE_RPI:
5689 /* RPI bitmask and physical id array are cleaned up earlier. */
5690 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5691 &phba->sli4_hba.lpfc_rpi_blk_list, list) {
5692 list_del_init(&rsrc_blk->list);
5700 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5703 mempool_free(mbox, phba->mbox_mem_pool);
5708 lpfc_set_features(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox,
5713 len = sizeof(struct lpfc_mbx_set_feature) -
5714 sizeof(struct lpfc_sli4_cfg_mhdr);
5715 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5716 LPFC_MBOX_OPCODE_SET_FEATURES, len,
5717 LPFC_SLI4_MBX_EMBED);
5720 case LPFC_SET_UE_RECOVERY:
5721 bf_set(lpfc_mbx_set_feature_UER,
5722 &mbox->u.mqe.un.set_feature, 1);
5723 mbox->u.mqe.un.set_feature.feature = LPFC_SET_UE_RECOVERY;
5724 mbox->u.mqe.un.set_feature.param_len = 8;
5726 case LPFC_SET_MDS_DIAGS:
5727 bf_set(lpfc_mbx_set_feature_mds,
5728 &mbox->u.mqe.un.set_feature, 1);
5729 bf_set(lpfc_mbx_set_feature_mds_deep_loopbk,
5730 &mbox->u.mqe.un.set_feature, 0);
5731 mbox->u.mqe.un.set_feature.feature = LPFC_SET_MDS_DIAGS;
5732 mbox->u.mqe.un.set_feature.param_len = 8;
5740 * lpfc_sli4_alloc_resource_identifiers - Allocate all SLI4 resource extents.
5741 * @phba: Pointer to HBA context object.
5743 * This function allocates all SLI4 resource identifiers.
5746 lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba *phba)
5748 int i, rc, error = 0;
5749 uint16_t count, base;
5750 unsigned long longs;
5752 if (!phba->sli4_hba.rpi_hdrs_in_use)
5753 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
5754 if (phba->sli4_hba.extents_in_use) {
5756 * The port supports resource extents. The XRI, VPI, VFI, RPI
5757 * resource extent count must be read and allocated before
5758 * provisioning the resource id arrays.
5760 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
5761 LPFC_IDX_RSRC_RDY) {
5763 * Extent-based resources are set - the driver could
5764 * be in a port reset. Figure out if any corrective
5765 * actions need to be taken.
5767 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5768 LPFC_RSC_TYPE_FCOE_VFI);
5771 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5772 LPFC_RSC_TYPE_FCOE_VPI);
5775 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5776 LPFC_RSC_TYPE_FCOE_XRI);
5779 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5780 LPFC_RSC_TYPE_FCOE_RPI);
5785 * It's possible that the number of resources
5786 * provided to this port instance changed between
5787 * resets. Detect this condition and reallocate
5788 * resources. Otherwise, there is no action.
5791 lpfc_printf_log(phba, KERN_INFO,
5792 LOG_MBOX | LOG_INIT,
5793 "2931 Detected extent resource "
5794 "change. Reallocating all "
5796 rc = lpfc_sli4_dealloc_extent(phba,
5797 LPFC_RSC_TYPE_FCOE_VFI);
5798 rc = lpfc_sli4_dealloc_extent(phba,
5799 LPFC_RSC_TYPE_FCOE_VPI);
5800 rc = lpfc_sli4_dealloc_extent(phba,
5801 LPFC_RSC_TYPE_FCOE_XRI);
5802 rc = lpfc_sli4_dealloc_extent(phba,
5803 LPFC_RSC_TYPE_FCOE_RPI);
5808 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
5812 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
5816 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
5820 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
5823 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
5828 * The port does not support resource extents. The XRI, VPI,
5829 * VFI, RPI resource ids were determined from READ_CONFIG.
5830 * Just allocate the bitmasks and provision the resource id
5831 * arrays. If a port reset is active, the resources don't
5832 * need any action - just exit.
5834 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
5835 LPFC_IDX_RSRC_RDY) {
5836 lpfc_sli4_dealloc_resource_identifiers(phba);
5837 lpfc_sli4_remove_rpis(phba);
5840 count = phba->sli4_hba.max_cfg_param.max_rpi;
5842 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5843 "3279 Invalid provisioning of "
5848 base = phba->sli4_hba.max_cfg_param.rpi_base;
5849 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5850 phba->sli4_hba.rpi_bmask = kzalloc(longs *
5851 sizeof(unsigned long),
5853 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5857 phba->sli4_hba.rpi_ids = kzalloc(count *
5860 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5862 goto free_rpi_bmask;
5865 for (i = 0; i < count; i++)
5866 phba->sli4_hba.rpi_ids[i] = base + i;
5869 count = phba->sli4_hba.max_cfg_param.max_vpi;
5871 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5872 "3280 Invalid provisioning of "
5877 base = phba->sli4_hba.max_cfg_param.vpi_base;
5878 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5879 phba->vpi_bmask = kzalloc(longs *
5880 sizeof(unsigned long),
5882 if (unlikely(!phba->vpi_bmask)) {
5886 phba->vpi_ids = kzalloc(count *
5889 if (unlikely(!phba->vpi_ids)) {
5891 goto free_vpi_bmask;
5894 for (i = 0; i < count; i++)
5895 phba->vpi_ids[i] = base + i;
5898 count = phba->sli4_hba.max_cfg_param.max_xri;
5900 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5901 "3281 Invalid provisioning of "
5906 base = phba->sli4_hba.max_cfg_param.xri_base;
5907 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5908 phba->sli4_hba.xri_bmask = kzalloc(longs *
5909 sizeof(unsigned long),
5911 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5915 phba->sli4_hba.max_cfg_param.xri_used = 0;
5916 phba->sli4_hba.xri_ids = kzalloc(count *
5919 if (unlikely(!phba->sli4_hba.xri_ids)) {
5921 goto free_xri_bmask;
5924 for (i = 0; i < count; i++)
5925 phba->sli4_hba.xri_ids[i] = base + i;
5928 count = phba->sli4_hba.max_cfg_param.max_vfi;
5930 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5931 "3282 Invalid provisioning of "
5936 base = phba->sli4_hba.max_cfg_param.vfi_base;
5937 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5938 phba->sli4_hba.vfi_bmask = kzalloc(longs *
5939 sizeof(unsigned long),
5941 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5945 phba->sli4_hba.vfi_ids = kzalloc(count *
5948 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5950 goto free_vfi_bmask;
5953 for (i = 0; i < count; i++)
5954 phba->sli4_hba.vfi_ids[i] = base + i;
5957 * Mark all resources ready. An HBA reset doesn't need
5958 * to reset the initialization.
5960 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
5966 kfree(phba->sli4_hba.vfi_bmask);
5967 phba->sli4_hba.vfi_bmask = NULL;
5969 kfree(phba->sli4_hba.xri_ids);
5970 phba->sli4_hba.xri_ids = NULL;
5972 kfree(phba->sli4_hba.xri_bmask);
5973 phba->sli4_hba.xri_bmask = NULL;
5975 kfree(phba->vpi_ids);
5976 phba->vpi_ids = NULL;
5978 kfree(phba->vpi_bmask);
5979 phba->vpi_bmask = NULL;
5981 kfree(phba->sli4_hba.rpi_ids);
5982 phba->sli4_hba.rpi_ids = NULL;
5984 kfree(phba->sli4_hba.rpi_bmask);
5985 phba->sli4_hba.rpi_bmask = NULL;
5991 * lpfc_sli4_dealloc_resource_identifiers - Deallocate all SLI4 resource extents.
5992 * @phba: Pointer to HBA context object.
5994 * This function allocates the number of elements for the specified
5998 lpfc_sli4_dealloc_resource_identifiers(struct lpfc_hba *phba)
6000 if (phba->sli4_hba.extents_in_use) {
6001 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
6002 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
6003 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
6004 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
6006 kfree(phba->vpi_bmask);
6007 phba->sli4_hba.max_cfg_param.vpi_used = 0;
6008 kfree(phba->vpi_ids);
6009 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6010 kfree(phba->sli4_hba.xri_bmask);
6011 kfree(phba->sli4_hba.xri_ids);
6012 kfree(phba->sli4_hba.vfi_bmask);
6013 kfree(phba->sli4_hba.vfi_ids);
6014 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6015 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6022 * lpfc_sli4_get_allocated_extnts - Get the port's allocated extents.
6023 * @phba: Pointer to HBA context object.
6024 * @type: The resource extent type.
6025 * @extnt_count: buffer to hold port extent count response
6026 * @extnt_size: buffer to hold port extent size response.
6028 * This function calls the port to read the host allocated extents
6029 * for a particular type.
6032 lpfc_sli4_get_allocated_extnts(struct lpfc_hba *phba, uint16_t type,
6033 uint16_t *extnt_cnt, uint16_t *extnt_size)
6037 uint16_t curr_blks = 0;
6038 uint32_t req_len, emb_len;
6039 uint32_t alloc_len, mbox_tmo;
6040 struct list_head *blk_list_head;
6041 struct lpfc_rsrc_blks *rsrc_blk;
6043 void *virtaddr = NULL;
6044 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
6045 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
6046 union lpfc_sli4_cfg_shdr *shdr;
6049 case LPFC_RSC_TYPE_FCOE_VPI:
6050 blk_list_head = &phba->lpfc_vpi_blk_list;
6052 case LPFC_RSC_TYPE_FCOE_XRI:
6053 blk_list_head = &phba->sli4_hba.lpfc_xri_blk_list;
6055 case LPFC_RSC_TYPE_FCOE_VFI:
6056 blk_list_head = &phba->sli4_hba.lpfc_vfi_blk_list;
6058 case LPFC_RSC_TYPE_FCOE_RPI:
6059 blk_list_head = &phba->sli4_hba.lpfc_rpi_blk_list;
6065 /* Count the number of extents currently allocatd for this type. */
6066 list_for_each_entry(rsrc_blk, blk_list_head, list) {
6067 if (curr_blks == 0) {
6069 * The GET_ALLOCATED mailbox does not return the size,
6070 * just the count. The size should be just the size
6071 * stored in the current allocated block and all sizes
6072 * for an extent type are the same so set the return
6075 *extnt_size = rsrc_blk->rsrc_size;
6081 * Calculate the size of an embedded mailbox. The uint32_t
6082 * accounts for extents-specific word.
6084 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
6088 * Presume the allocation and response will fit into an embedded
6089 * mailbox. If not true, reconfigure to a non-embedded mailbox.
6091 emb = LPFC_SLI4_MBX_EMBED;
6093 if (req_len > emb_len) {
6094 req_len = curr_blks * sizeof(uint16_t) +
6095 sizeof(union lpfc_sli4_cfg_shdr) +
6097 emb = LPFC_SLI4_MBX_NEMBED;
6100 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6103 memset(mbox, 0, sizeof(LPFC_MBOXQ_t));
6105 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6106 LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT,
6108 if (alloc_len < req_len) {
6109 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6110 "2983 Allocated DMA memory size (x%x) is "
6111 "less than the requested DMA memory "
6112 "size (x%x)\n", alloc_len, req_len);
6116 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, curr_blks, type, emb);
6122 if (!phba->sli4_hba.intr_enable)
6123 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
6125 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
6126 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
6135 * Figure out where the response is located. Then get local pointers
6136 * to the response data. The port does not guarantee to respond to
6137 * all extents counts request so update the local variable with the
6138 * allocated count from the port.
6140 if (emb == LPFC_SLI4_MBX_EMBED) {
6141 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
6142 shdr = &rsrc_ext->header.cfg_shdr;
6143 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
6145 virtaddr = mbox->sge_array->addr[0];
6146 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
6147 shdr = &n_rsrc->cfg_shdr;
6148 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
6151 if (bf_get(lpfc_mbox_hdr_status, &shdr->response)) {
6152 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
6153 "2984 Failed to read allocated resources "
6154 "for type %d - Status 0x%x Add'l Status 0x%x.\n",
6156 bf_get(lpfc_mbox_hdr_status, &shdr->response),
6157 bf_get(lpfc_mbox_hdr_add_status, &shdr->response));
6162 lpfc_sli4_mbox_cmd_free(phba, mbox);
6167 * lpfc_sli4_repost_els_sgl_list - Repsot the els buffers sgl pages as block
6168 * @phba: pointer to lpfc hba data structure.
6170 * This routine walks the list of els buffers that have been allocated and
6171 * repost them to the port by using SGL block post. This is needed after a
6172 * pci_function_reset/warm_start or start. It attempts to construct blocks
6173 * of els buffer sgls which contains contiguous xris and uses the non-embedded
6174 * SGL block post mailbox commands to post them to the port. For single els
6175 * buffer sgl with non-contiguous xri, if any, it shall use embedded SGL post
6176 * mailbox command for posting.
6178 * Returns: 0 = success, non-zero failure.
6181 lpfc_sli4_repost_els_sgl_list(struct lpfc_hba *phba)
6183 struct lpfc_sglq *sglq_entry = NULL;
6184 struct lpfc_sglq *sglq_entry_next = NULL;
6185 struct lpfc_sglq *sglq_entry_first = NULL;
6186 int status, total_cnt, post_cnt = 0, num_posted = 0, block_cnt = 0;
6187 int last_xritag = NO_XRI;
6188 struct lpfc_sli_ring *pring;
6189 LIST_HEAD(prep_sgl_list);
6190 LIST_HEAD(blck_sgl_list);
6191 LIST_HEAD(allc_sgl_list);
6192 LIST_HEAD(post_sgl_list);
6193 LIST_HEAD(free_sgl_list);
6195 pring = &phba->sli.ring[LPFC_ELS_RING];
6196 spin_lock_irq(&phba->hbalock);
6197 spin_lock(&pring->ring_lock);
6198 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &allc_sgl_list);
6199 spin_unlock(&pring->ring_lock);
6200 spin_unlock_irq(&phba->hbalock);
6202 total_cnt = phba->sli4_hba.els_xri_cnt;
6203 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
6204 &allc_sgl_list, list) {
6205 list_del_init(&sglq_entry->list);
6207 if ((last_xritag != NO_XRI) &&
6208 (sglq_entry->sli4_xritag != last_xritag + 1)) {
6209 /* a hole in xri block, form a sgl posting block */
6210 list_splice_init(&prep_sgl_list, &blck_sgl_list);
6211 post_cnt = block_cnt - 1;
6212 /* prepare list for next posting block */
6213 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6216 /* prepare list for next posting block */
6217 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6218 /* enough sgls for non-embed sgl mbox command */
6219 if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
6220 list_splice_init(&prep_sgl_list,
6222 post_cnt = block_cnt;
6228 /* keep track of last sgl's xritag */
6229 last_xritag = sglq_entry->sli4_xritag;
6231 /* end of repost sgl list condition for els buffers */
6232 if (num_posted == phba->sli4_hba.els_xri_cnt) {
6233 if (post_cnt == 0) {
6234 list_splice_init(&prep_sgl_list,
6236 post_cnt = block_cnt;
6237 } else if (block_cnt == 1) {
6238 status = lpfc_sli4_post_sgl(phba,
6239 sglq_entry->phys, 0,
6240 sglq_entry->sli4_xritag);
6242 /* successful, put sgl to posted list */
6243 list_add_tail(&sglq_entry->list,
6246 /* Failure, put sgl to free list */
6247 lpfc_printf_log(phba, KERN_WARNING,
6249 "3159 Failed to post els "
6250 "sgl, xritag:x%x\n",
6251 sglq_entry->sli4_xritag);
6252 list_add_tail(&sglq_entry->list,
6259 /* continue until a nembed page worth of sgls */
6263 /* post the els buffer list sgls as a block */
6264 status = lpfc_sli4_post_els_sgl_list(phba, &blck_sgl_list,
6268 /* success, put sgl list to posted sgl list */
6269 list_splice_init(&blck_sgl_list, &post_sgl_list);
6271 /* Failure, put sgl list to free sgl list */
6272 sglq_entry_first = list_first_entry(&blck_sgl_list,
6275 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6276 "3160 Failed to post els sgl-list, "
6278 sglq_entry_first->sli4_xritag,
6279 (sglq_entry_first->sli4_xritag +
6281 list_splice_init(&blck_sgl_list, &free_sgl_list);
6282 total_cnt -= post_cnt;
6285 /* don't reset xirtag due to hole in xri block */
6287 last_xritag = NO_XRI;
6289 /* reset els sgl post count for next round of posting */
6292 /* update the number of XRIs posted for ELS */
6293 phba->sli4_hba.els_xri_cnt = total_cnt;
6295 /* free the els sgls failed to post */
6296 lpfc_free_sgl_list(phba, &free_sgl_list);
6298 /* push els sgls posted to the availble list */
6299 if (!list_empty(&post_sgl_list)) {
6300 spin_lock_irq(&phba->hbalock);
6301 spin_lock(&pring->ring_lock);
6302 list_splice_init(&post_sgl_list,
6303 &phba->sli4_hba.lpfc_sgl_list);
6304 spin_unlock(&pring->ring_lock);
6305 spin_unlock_irq(&phba->hbalock);
6307 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6308 "3161 Failure to post els sgl to port.\n");
6315 * lpfc_sli4_hba_setup - SLI4 device intialization PCI function
6316 * @phba: Pointer to HBA context object.
6318 * This function is the main SLI4 device intialization PCI function. This
6319 * function is called by the HBA intialization code, HBA reset code and
6320 * HBA error attention handler code. Caller is not required to hold any
6324 lpfc_sli4_hba_setup(struct lpfc_hba *phba)
6327 LPFC_MBOXQ_t *mboxq;
6328 struct lpfc_mqe *mqe;
6331 uint32_t ftr_rsp = 0;
6332 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
6333 struct lpfc_vport *vport = phba->pport;
6334 struct lpfc_dmabuf *mp;
6336 /* Perform a PCI function reset to start from clean */
6337 rc = lpfc_pci_function_reset(phba);
6341 /* Check the HBA Host Status Register for readyness */
6342 rc = lpfc_sli4_post_status_check(phba);
6346 spin_lock_irq(&phba->hbalock);
6347 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
6348 spin_unlock_irq(&phba->hbalock);
6352 * Allocate a single mailbox container for initializing the
6355 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6359 /* Issue READ_REV to collect vpd and FW information. */
6360 vpd_size = SLI4_PAGE_SIZE;
6361 vpd = kzalloc(vpd_size, GFP_KERNEL);
6367 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
6373 mqe = &mboxq->u.mqe;
6374 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
6375 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev)) {
6376 phba->hba_flag |= HBA_FCOE_MODE;
6377 phba->fcp_embed_io = 0; /* SLI4 FC support only */
6379 phba->hba_flag &= ~HBA_FCOE_MODE;
6382 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
6384 phba->hba_flag |= HBA_FIP_SUPPORT;
6386 phba->hba_flag &= ~HBA_FIP_SUPPORT;
6388 phba->hba_flag &= ~HBA_FCP_IOQ_FLUSH;
6390 if (phba->sli_rev != LPFC_SLI_REV4) {
6391 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6392 "0376 READ_REV Error. SLI Level %d "
6393 "FCoE enabled %d\n",
6394 phba->sli_rev, phba->hba_flag & HBA_FCOE_MODE);
6401 * Continue initialization with default values even if driver failed
6402 * to read FCoE param config regions, only read parameters if the
6405 if (phba->hba_flag & HBA_FCOE_MODE &&
6406 lpfc_sli4_read_fcoe_params(phba))
6407 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_INIT,
6408 "2570 Failed to read FCoE parameters\n");
6411 * Retrieve sli4 device physical port name, failure of doing it
6412 * is considered as non-fatal.
6414 rc = lpfc_sli4_retrieve_pport_name(phba);
6416 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6417 "3080 Successful retrieving SLI4 device "
6418 "physical port name: %s.\n", phba->Port);
6421 * Evaluate the read rev and vpd data. Populate the driver
6422 * state with the results. If this routine fails, the failure
6423 * is not fatal as the driver will use generic values.
6425 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
6426 if (unlikely(!rc)) {
6427 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6428 "0377 Error %d parsing vpd. "
6429 "Using defaults.\n", rc);
6434 /* Save information as VPD data */
6435 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
6436 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
6437 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
6438 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
6440 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
6442 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
6444 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
6446 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
6447 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
6448 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
6449 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
6450 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
6451 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
6452 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6453 "(%d):0380 READ_REV Status x%x "
6454 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
6455 mboxq->vport ? mboxq->vport->vpi : 0,
6456 bf_get(lpfc_mqe_status, mqe),
6457 phba->vpd.rev.opFwName,
6458 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
6459 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
6461 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */
6462 rc = (phba->sli4_hba.max_cfg_param.max_xri >> 3);
6463 if (phba->pport->cfg_lun_queue_depth > rc) {
6464 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6465 "3362 LUN queue depth changed from %d to %d\n",
6466 phba->pport->cfg_lun_queue_depth, rc);
6467 phba->pport->cfg_lun_queue_depth = rc;
6470 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
6471 LPFC_SLI_INTF_IF_TYPE_0) {
6472 lpfc_set_features(phba, mboxq, LPFC_SET_UE_RECOVERY);
6473 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6474 if (rc == MBX_SUCCESS) {
6475 phba->hba_flag |= HBA_RECOVERABLE_UE;
6476 /* Set 1Sec interval to detect UE */
6477 phba->eratt_poll_interval = 1;
6478 phba->sli4_hba.ue_to_sr = bf_get(
6479 lpfc_mbx_set_feature_UESR,
6480 &mboxq->u.mqe.un.set_feature);
6481 phba->sli4_hba.ue_to_rp = bf_get(
6482 lpfc_mbx_set_feature_UERP,
6483 &mboxq->u.mqe.un.set_feature);
6487 if (phba->cfg_enable_mds_diags && phba->mds_diags_support) {
6488 /* Enable MDS Diagnostics only if the SLI Port supports it */
6489 lpfc_set_features(phba, mboxq, LPFC_SET_MDS_DIAGS);
6490 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6491 if (rc != MBX_SUCCESS)
6492 phba->mds_diags_support = 0;
6496 * Discover the port's supported feature set and match it against the
6499 lpfc_request_features(phba, mboxq);
6500 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6507 * The port must support FCP initiator mode as this is the
6508 * only mode running in the host.
6510 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
6511 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6512 "0378 No support for fcpi mode.\n");
6515 if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh, &mqe->un.req_ftrs))
6516 phba->sli3_options |= LPFC_SLI4_PERFH_ENABLED;
6518 phba->sli3_options &= ~LPFC_SLI4_PERFH_ENABLED;
6520 * If the port cannot support the host's requested features
6521 * then turn off the global config parameters to disable the
6522 * feature in the driver. This is not a fatal error.
6524 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
6525 if (phba->cfg_enable_bg) {
6526 if (bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))
6527 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
6532 if (phba->max_vpi && phba->cfg_enable_npiv &&
6533 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6537 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6538 "0379 Feature Mismatch Data: x%08x %08x "
6539 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
6540 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
6541 phba->cfg_enable_npiv, phba->max_vpi);
6542 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
6543 phba->cfg_enable_bg = 0;
6544 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6545 phba->cfg_enable_npiv = 0;
6548 /* These SLI3 features are assumed in SLI4 */
6549 spin_lock_irq(&phba->hbalock);
6550 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
6551 spin_unlock_irq(&phba->hbalock);
6554 * Allocate all resources (xri,rpi,vpi,vfi) now. Subsequent
6555 * calls depends on these resources to complete port setup.
6557 rc = lpfc_sli4_alloc_resource_identifiers(phba);
6559 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6560 "2920 Failed to alloc Resource IDs "
6565 /* Read the port's service parameters. */
6566 rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
6568 phba->link_state = LPFC_HBA_ERROR;
6573 mboxq->vport = vport;
6574 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6575 mp = (struct lpfc_dmabuf *) mboxq->context1;
6576 if (rc == MBX_SUCCESS) {
6577 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
6582 * This memory was allocated by the lpfc_read_sparam routine. Release
6583 * it to the mbuf pool.
6585 lpfc_mbuf_free(phba, mp->virt, mp->phys);
6587 mboxq->context1 = NULL;
6589 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6590 "0382 READ_SPARAM command failed "
6591 "status %d, mbxStatus x%x\n",
6592 rc, bf_get(lpfc_mqe_status, mqe));
6593 phba->link_state = LPFC_HBA_ERROR;
6598 lpfc_update_vport_wwn(vport);
6600 /* Update the fc_host data structures with new wwn. */
6601 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
6602 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
6604 /* update host els and scsi xri-sgl sizes and mappings */
6605 rc = lpfc_sli4_xri_sgl_update(phba);
6607 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6608 "1400 Failed to update xri-sgl size and "
6609 "mapping: %d\n", rc);
6613 /* register the els sgl pool to the port */
6614 rc = lpfc_sli4_repost_els_sgl_list(phba);
6616 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6617 "0582 Error %d during els sgl post "
6623 /* register the allocated scsi sgl pool to the port */
6624 rc = lpfc_sli4_repost_scsi_sgl_list(phba);
6626 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6627 "0383 Error %d during scsi sgl post "
6629 /* Some Scsi buffers were moved to the abort scsi list */
6630 /* A pci function reset will repost them */
6635 /* Post the rpi header region to the device. */
6636 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
6638 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6639 "0393 Error %d during rpi post operation\n",
6644 lpfc_sli4_node_prep(phba);
6646 /* Create all the SLI4 queues */
6647 rc = lpfc_sli4_queue_create(phba);
6649 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6650 "3089 Failed to allocate queues\n");
6652 goto out_stop_timers;
6654 /* Set up all the queues to the device */
6655 rc = lpfc_sli4_queue_setup(phba);
6657 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6658 "0381 Error %d during queue setup.\n ", rc);
6659 goto out_destroy_queue;
6662 /* Arm the CQs and then EQs on device */
6663 lpfc_sli4_arm_cqeq_intr(phba);
6665 /* Indicate device interrupt mode */
6666 phba->sli4_hba.intr_enable = 1;
6668 /* Allow asynchronous mailbox command to go through */
6669 spin_lock_irq(&phba->hbalock);
6670 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
6671 spin_unlock_irq(&phba->hbalock);
6673 /* Post receive buffers to the device */
6674 lpfc_sli4_rb_setup(phba);
6676 /* Reset HBA FCF states after HBA reset */
6677 phba->fcf.fcf_flag = 0;
6678 phba->fcf.current_rec.flag = 0;
6680 /* Start the ELS watchdog timer */
6681 mod_timer(&vport->els_tmofunc,
6682 jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov * 2)));
6684 /* Start heart beat timer */
6685 mod_timer(&phba->hb_tmofunc,
6686 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
6687 phba->hb_outstanding = 0;
6688 phba->last_completion_time = jiffies;
6690 /* Start error attention (ERATT) polling timer */
6691 mod_timer(&phba->eratt_poll,
6692 jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
6694 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
6695 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
6696 rc = pci_enable_pcie_error_reporting(phba->pcidev);
6698 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6699 "2829 This device supports "
6700 "Advanced Error Reporting (AER)\n");
6701 spin_lock_irq(&phba->hbalock);
6702 phba->hba_flag |= HBA_AER_ENABLED;
6703 spin_unlock_irq(&phba->hbalock);
6705 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6706 "2830 This device does not support "
6707 "Advanced Error Reporting (AER)\n");
6708 phba->cfg_aer_support = 0;
6713 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
6715 * The FC Port needs to register FCFI (index 0)
6717 lpfc_reg_fcfi(phba, mboxq);
6718 mboxq->vport = phba->pport;
6719 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6720 if (rc != MBX_SUCCESS)
6721 goto out_unset_queue;
6723 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi,
6724 &mboxq->u.mqe.un.reg_fcfi);
6726 /* Check if the port is configured to be disabled */
6727 lpfc_sli_read_link_ste(phba);
6731 * The port is ready, set the host's link state to LINK_DOWN
6732 * in preparation for link interrupts.
6734 spin_lock_irq(&phba->hbalock);
6735 phba->link_state = LPFC_LINK_DOWN;
6736 spin_unlock_irq(&phba->hbalock);
6737 if (!(phba->hba_flag & HBA_FCOE_MODE) &&
6738 (phba->hba_flag & LINK_DISABLED)) {
6739 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
6740 "3103 Adapter Link is disabled.\n");
6741 lpfc_down_link(phba, mboxq);
6742 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6743 if (rc != MBX_SUCCESS) {
6744 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
6745 "3104 Adapter failed to issue "
6746 "DOWN_LINK mbox cmd, rc:x%x\n", rc);
6747 goto out_unset_queue;
6749 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
6750 /* don't perform init_link on SLI4 FC port loopback test */
6751 if (!(phba->link_flag & LS_LOOPBACK_MODE)) {
6752 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
6754 goto out_unset_queue;
6757 mempool_free(mboxq, phba->mbox_mem_pool);
6760 /* Unset all the queues set up in this routine when error out */
6761 lpfc_sli4_queue_unset(phba);
6763 lpfc_sli4_queue_destroy(phba);
6765 lpfc_stop_hba_timers(phba);
6767 mempool_free(mboxq, phba->mbox_mem_pool);
6772 * lpfc_mbox_timeout - Timeout call back function for mbox timer
6773 * @ptr: context object - pointer to hba structure.
6775 * This is the callback function for mailbox timer. The mailbox
6776 * timer is armed when a new mailbox command is issued and the timer
6777 * is deleted when the mailbox complete. The function is called by
6778 * the kernel timer code when a mailbox does not complete within
6779 * expected time. This function wakes up the worker thread to
6780 * process the mailbox timeout and returns. All the processing is
6781 * done by the worker thread function lpfc_mbox_timeout_handler.
6784 lpfc_mbox_timeout(unsigned long ptr)
6786 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
6787 unsigned long iflag;
6788 uint32_t tmo_posted;
6790 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
6791 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
6793 phba->pport->work_port_events |= WORKER_MBOX_TMO;
6794 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
6797 lpfc_worker_wake_up(phba);
6802 * lpfc_sli4_mbox_completions_pending - check to see if any mailbox completions
6804 * @phba: Pointer to HBA context object.
6806 * This function checks if any mailbox completions are present on the mailbox
6810 lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba)
6814 struct lpfc_queue *mcq;
6815 struct lpfc_mcqe *mcqe;
6816 bool pending_completions = false;
6818 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
6821 /* Check for completions on mailbox completion queue */
6823 mcq = phba->sli4_hba.mbx_cq;
6824 idx = mcq->hba_index;
6825 while (bf_get_le32(lpfc_cqe_valid, mcq->qe[idx].cqe)) {
6826 mcqe = (struct lpfc_mcqe *)mcq->qe[idx].cqe;
6827 if (bf_get_le32(lpfc_trailer_completed, mcqe) &&
6828 (!bf_get_le32(lpfc_trailer_async, mcqe))) {
6829 pending_completions = true;
6832 idx = (idx + 1) % mcq->entry_count;
6833 if (mcq->hba_index == idx)
6836 return pending_completions;
6841 * lpfc_sli4_process_missed_mbox_completions - process mbox completions
6843 * @phba: Pointer to HBA context object.
6845 * For sli4, it is possible to miss an interrupt. As such mbox completions
6846 * maybe missed causing erroneous mailbox timeouts to occur. This function
6847 * checks to see if mbox completions are on the mailbox completion queue
6848 * and will process all the completions associated with the eq for the
6849 * mailbox completion queue.
6852 lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba)
6856 struct lpfc_queue *fpeq = NULL;
6857 struct lpfc_eqe *eqe;
6860 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
6863 /* Find the eq associated with the mcq */
6865 if (phba->sli4_hba.hba_eq)
6866 for (eqidx = 0; eqidx < phba->cfg_fcp_io_channel; eqidx++)
6867 if (phba->sli4_hba.hba_eq[eqidx]->queue_id ==
6868 phba->sli4_hba.mbx_cq->assoc_qid) {
6869 fpeq = phba->sli4_hba.hba_eq[eqidx];
6875 /* Turn off interrupts from this EQ */
6877 lpfc_sli4_eq_clr_intr(fpeq);
6879 /* Check to see if a mbox completion is pending */
6881 mbox_pending = lpfc_sli4_mbox_completions_pending(phba);
6884 * If a mbox completion is pending, process all the events on EQ
6885 * associated with the mbox completion queue (this could include
6886 * mailbox commands, async events, els commands, receive queue data
6891 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
6892 lpfc_sli4_hba_handle_eqe(phba, eqe, eqidx);
6893 fpeq->EQ_processed++;
6896 /* Always clear and re-arm the EQ */
6898 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
6900 return mbox_pending;
6905 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
6906 * @phba: Pointer to HBA context object.
6908 * This function is called from worker thread when a mailbox command times out.
6909 * The caller is not required to hold any locks. This function will reset the
6910 * HBA and recover all the pending commands.
6913 lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
6915 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
6916 MAILBOX_t *mb = NULL;
6918 struct lpfc_sli *psli = &phba->sli;
6920 /* If the mailbox completed, process the completion and return */
6921 if (lpfc_sli4_process_missed_mbox_completions(phba))
6926 /* Check the pmbox pointer first. There is a race condition
6927 * between the mbox timeout handler getting executed in the
6928 * worklist and the mailbox actually completing. When this
6929 * race condition occurs, the mbox_active will be NULL.
6931 spin_lock_irq(&phba->hbalock);
6932 if (pmbox == NULL) {
6933 lpfc_printf_log(phba, KERN_WARNING,
6935 "0353 Active Mailbox cleared - mailbox timeout "
6937 spin_unlock_irq(&phba->hbalock);
6941 /* Mbox cmd <mbxCommand> timeout */
6942 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6943 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
6945 phba->pport->port_state,
6947 phba->sli.mbox_active);
6948 spin_unlock_irq(&phba->hbalock);
6950 /* Setting state unknown so lpfc_sli_abort_iocb_ring
6951 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
6952 * it to fail all outstanding SCSI IO.
6954 spin_lock_irq(&phba->pport->work_port_lock);
6955 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
6956 spin_unlock_irq(&phba->pport->work_port_lock);
6957 spin_lock_irq(&phba->hbalock);
6958 phba->link_state = LPFC_LINK_UNKNOWN;
6959 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
6960 spin_unlock_irq(&phba->hbalock);
6962 lpfc_sli_abort_fcp_rings(phba);
6964 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6965 "0345 Resetting board due to mailbox timeout\n");
6967 /* Reset the HBA device */
6968 lpfc_reset_hba(phba);
6972 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
6973 * @phba: Pointer to HBA context object.
6974 * @pmbox: Pointer to mailbox object.
6975 * @flag: Flag indicating how the mailbox need to be processed.
6977 * This function is called by discovery code and HBA management code
6978 * to submit a mailbox command to firmware with SLI-3 interface spec. This
6979 * function gets the hbalock to protect the data structures.
6980 * The mailbox command can be submitted in polling mode, in which case
6981 * this function will wait in a polling loop for the completion of the
6983 * If the mailbox is submitted in no_wait mode (not polling) the
6984 * function will submit the command and returns immediately without waiting
6985 * for the mailbox completion. The no_wait is supported only when HBA
6986 * is in SLI2/SLI3 mode - interrupts are enabled.
6987 * The SLI interface allows only one mailbox pending at a time. If the
6988 * mailbox is issued in polling mode and there is already a mailbox
6989 * pending, then the function will return an error. If the mailbox is issued
6990 * in NO_WAIT mode and there is a mailbox pending already, the function
6991 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
6992 * The sli layer owns the mailbox object until the completion of mailbox
6993 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
6994 * return codes the caller owns the mailbox command after the return of
6998 lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
7002 struct lpfc_sli *psli = &phba->sli;
7003 uint32_t status, evtctr;
7004 uint32_t ha_copy, hc_copy;
7006 unsigned long timeout;
7007 unsigned long drvr_flag = 0;
7008 uint32_t word0, ldata;
7009 void __iomem *to_slim;
7010 int processing_queue = 0;
7012 spin_lock_irqsave(&phba->hbalock, drvr_flag);
7014 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7015 /* processing mbox queue from intr_handler */
7016 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7017 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7020 processing_queue = 1;
7021 pmbox = lpfc_mbox_get(phba);
7023 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7028 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
7029 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
7031 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7032 lpfc_printf_log(phba, KERN_ERR,
7033 LOG_MBOX | LOG_VPORT,
7034 "1806 Mbox x%x failed. No vport\n",
7035 pmbox->u.mb.mbxCommand);
7037 goto out_not_finished;
7041 /* If the PCI channel is in offline state, do not post mbox. */
7042 if (unlikely(pci_channel_offline(phba->pcidev))) {
7043 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7044 goto out_not_finished;
7047 /* If HBA has a deferred error attention, fail the iocb. */
7048 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
7049 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7050 goto out_not_finished;
7056 status = MBX_SUCCESS;
7058 if (phba->link_state == LPFC_HBA_ERROR) {
7059 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7061 /* Mbox command <mbxCommand> cannot issue */
7062 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7063 "(%d):0311 Mailbox command x%x cannot "
7064 "issue Data: x%x x%x\n",
7065 pmbox->vport ? pmbox->vport->vpi : 0,
7066 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
7067 goto out_not_finished;
7070 if (mbx->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT) {
7071 if (lpfc_readl(phba->HCregaddr, &hc_copy) ||
7072 !(hc_copy & HC_MBINT_ENA)) {
7073 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7074 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7075 "(%d):2528 Mailbox command x%x cannot "
7076 "issue Data: x%x x%x\n",
7077 pmbox->vport ? pmbox->vport->vpi : 0,
7078 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
7079 goto out_not_finished;
7083 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7084 /* Polling for a mbox command when another one is already active
7085 * is not allowed in SLI. Also, the driver must have established
7086 * SLI2 mode to queue and process multiple mbox commands.
7089 if (flag & MBX_POLL) {
7090 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7092 /* Mbox command <mbxCommand> cannot issue */
7093 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7094 "(%d):2529 Mailbox command x%x "
7095 "cannot issue Data: x%x x%x\n",
7096 pmbox->vport ? pmbox->vport->vpi : 0,
7097 pmbox->u.mb.mbxCommand,
7098 psli->sli_flag, flag);
7099 goto out_not_finished;
7102 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
7103 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7104 /* Mbox command <mbxCommand> cannot issue */
7105 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7106 "(%d):2530 Mailbox command x%x "
7107 "cannot issue Data: x%x x%x\n",
7108 pmbox->vport ? pmbox->vport->vpi : 0,
7109 pmbox->u.mb.mbxCommand,
7110 psli->sli_flag, flag);
7111 goto out_not_finished;
7114 /* Another mailbox command is still being processed, queue this
7115 * command to be processed later.
7117 lpfc_mbox_put(phba, pmbox);
7119 /* Mbox cmd issue - BUSY */
7120 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7121 "(%d):0308 Mbox cmd issue - BUSY Data: "
7122 "x%x x%x x%x x%x\n",
7123 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
7124 mbx->mbxCommand, phba->pport->port_state,
7125 psli->sli_flag, flag);
7127 psli->slistat.mbox_busy++;
7128 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7131 lpfc_debugfs_disc_trc(pmbox->vport,
7132 LPFC_DISC_TRC_MBOX_VPORT,
7133 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
7134 (uint32_t)mbx->mbxCommand,
7135 mbx->un.varWords[0], mbx->un.varWords[1]);
7138 lpfc_debugfs_disc_trc(phba->pport,
7140 "MBOX Bsy: cmd:x%x mb:x%x x%x",
7141 (uint32_t)mbx->mbxCommand,
7142 mbx->un.varWords[0], mbx->un.varWords[1]);
7148 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7150 /* If we are not polling, we MUST be in SLI2 mode */
7151 if (flag != MBX_POLL) {
7152 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
7153 (mbx->mbxCommand != MBX_KILL_BOARD)) {
7154 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7155 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7156 /* Mbox command <mbxCommand> cannot issue */
7157 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7158 "(%d):2531 Mailbox command x%x "
7159 "cannot issue Data: x%x x%x\n",
7160 pmbox->vport ? pmbox->vport->vpi : 0,
7161 pmbox->u.mb.mbxCommand,
7162 psli->sli_flag, flag);
7163 goto out_not_finished;
7165 /* timeout active mbox command */
7166 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
7168 mod_timer(&psli->mbox_tmo, jiffies + timeout);
7171 /* Mailbox cmd <cmd> issue */
7172 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7173 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
7175 pmbox->vport ? pmbox->vport->vpi : 0,
7176 mbx->mbxCommand, phba->pport->port_state,
7177 psli->sli_flag, flag);
7179 if (mbx->mbxCommand != MBX_HEARTBEAT) {
7181 lpfc_debugfs_disc_trc(pmbox->vport,
7182 LPFC_DISC_TRC_MBOX_VPORT,
7183 "MBOX Send vport: cmd:x%x mb:x%x x%x",
7184 (uint32_t)mbx->mbxCommand,
7185 mbx->un.varWords[0], mbx->un.varWords[1]);
7188 lpfc_debugfs_disc_trc(phba->pport,
7190 "MBOX Send: cmd:x%x mb:x%x x%x",
7191 (uint32_t)mbx->mbxCommand,
7192 mbx->un.varWords[0], mbx->un.varWords[1]);
7196 psli->slistat.mbox_cmd++;
7197 evtctr = psli->slistat.mbox_event;
7199 /* next set own bit for the adapter and copy over command word */
7200 mbx->mbxOwner = OWN_CHIP;
7202 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7203 /* Populate mbox extension offset word. */
7204 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) {
7205 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
7206 = (uint8_t *)phba->mbox_ext
7207 - (uint8_t *)phba->mbox;
7210 /* Copy the mailbox extension data */
7211 if (pmbox->in_ext_byte_len && pmbox->context2) {
7212 lpfc_sli_pcimem_bcopy(pmbox->context2,
7213 (uint8_t *)phba->mbox_ext,
7214 pmbox->in_ext_byte_len);
7216 /* Copy command data to host SLIM area */
7217 lpfc_sli_pcimem_bcopy(mbx, phba->mbox, MAILBOX_CMD_SIZE);
7219 /* Populate mbox extension offset word. */
7220 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len)
7221 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
7222 = MAILBOX_HBA_EXT_OFFSET;
7224 /* Copy the mailbox extension data */
7225 if (pmbox->in_ext_byte_len && pmbox->context2) {
7226 lpfc_memcpy_to_slim(phba->MBslimaddr +
7227 MAILBOX_HBA_EXT_OFFSET,
7228 pmbox->context2, pmbox->in_ext_byte_len);
7231 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
7232 /* copy command data into host mbox for cmpl */
7233 lpfc_sli_pcimem_bcopy(mbx, phba->mbox, MAILBOX_CMD_SIZE);
7236 /* First copy mbox command data to HBA SLIM, skip past first
7238 to_slim = phba->MBslimaddr + sizeof (uint32_t);
7239 lpfc_memcpy_to_slim(to_slim, &mbx->un.varWords[0],
7240 MAILBOX_CMD_SIZE - sizeof (uint32_t));
7242 /* Next copy over first word, with mbxOwner set */
7243 ldata = *((uint32_t *)mbx);
7244 to_slim = phba->MBslimaddr;
7245 writel(ldata, to_slim);
7246 readl(to_slim); /* flush */
7248 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
7249 /* switch over to host mailbox */
7250 psli->sli_flag |= LPFC_SLI_ACTIVE;
7258 /* Set up reference to mailbox command */
7259 psli->mbox_active = pmbox;
7260 /* Interrupt board to do it */
7261 writel(CA_MBATT, phba->CAregaddr);
7262 readl(phba->CAregaddr); /* flush */
7263 /* Don't wait for it to finish, just return */
7267 /* Set up null reference to mailbox command */
7268 psli->mbox_active = NULL;
7269 /* Interrupt board to do it */
7270 writel(CA_MBATT, phba->CAregaddr);
7271 readl(phba->CAregaddr); /* flush */
7273 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7274 /* First read mbox status word */
7275 word0 = *((uint32_t *)phba->mbox);
7276 word0 = le32_to_cpu(word0);
7278 /* First read mbox status word */
7279 if (lpfc_readl(phba->MBslimaddr, &word0)) {
7280 spin_unlock_irqrestore(&phba->hbalock,
7282 goto out_not_finished;
7286 /* Read the HBA Host Attention Register */
7287 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
7288 spin_unlock_irqrestore(&phba->hbalock,
7290 goto out_not_finished;
7292 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
7295 /* Wait for command to complete */
7296 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
7297 (!(ha_copy & HA_MBATT) &&
7298 (phba->link_state > LPFC_WARM_START))) {
7299 if (time_after(jiffies, timeout)) {
7300 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7301 spin_unlock_irqrestore(&phba->hbalock,
7303 goto out_not_finished;
7306 /* Check if we took a mbox interrupt while we were
7308 if (((word0 & OWN_CHIP) != OWN_CHIP)
7309 && (evtctr != psli->slistat.mbox_event))
7313 spin_unlock_irqrestore(&phba->hbalock,
7316 spin_lock_irqsave(&phba->hbalock, drvr_flag);
7319 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7320 /* First copy command data */
7321 word0 = *((uint32_t *)phba->mbox);
7322 word0 = le32_to_cpu(word0);
7323 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
7326 /* Check real SLIM for any errors */
7327 slimword0 = readl(phba->MBslimaddr);
7328 slimmb = (MAILBOX_t *) & slimword0;
7329 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
7330 && slimmb->mbxStatus) {
7337 /* First copy command data */
7338 word0 = readl(phba->MBslimaddr);
7340 /* Read the HBA Host Attention Register */
7341 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
7342 spin_unlock_irqrestore(&phba->hbalock,
7344 goto out_not_finished;
7348 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7349 /* copy results back to user */
7350 lpfc_sli_pcimem_bcopy(phba->mbox, mbx, MAILBOX_CMD_SIZE);
7351 /* Copy the mailbox extension data */
7352 if (pmbox->out_ext_byte_len && pmbox->context2) {
7353 lpfc_sli_pcimem_bcopy(phba->mbox_ext,
7355 pmbox->out_ext_byte_len);
7358 /* First copy command data */
7359 lpfc_memcpy_from_slim(mbx, phba->MBslimaddr,
7361 /* Copy the mailbox extension data */
7362 if (pmbox->out_ext_byte_len && pmbox->context2) {
7363 lpfc_memcpy_from_slim(pmbox->context2,
7365 MAILBOX_HBA_EXT_OFFSET,
7366 pmbox->out_ext_byte_len);
7370 writel(HA_MBATT, phba->HAregaddr);
7371 readl(phba->HAregaddr); /* flush */
7373 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7374 status = mbx->mbxStatus;
7377 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7381 if (processing_queue) {
7382 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
7383 lpfc_mbox_cmpl_put(phba, pmbox);
7385 return MBX_NOT_FINISHED;
7389 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
7390 * @phba: Pointer to HBA context object.
7392 * The function blocks the posting of SLI4 asynchronous mailbox commands from
7393 * the driver internal pending mailbox queue. It will then try to wait out the
7394 * possible outstanding mailbox command before return.
7397 * 0 - the outstanding mailbox command completed; otherwise, the wait for
7398 * the outstanding mailbox command timed out.
7401 lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
7403 struct lpfc_sli *psli = &phba->sli;
7405 unsigned long timeout = 0;
7407 /* Mark the asynchronous mailbox command posting as blocked */
7408 spin_lock_irq(&phba->hbalock);
7409 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
7410 /* Determine how long we might wait for the active mailbox
7411 * command to be gracefully completed by firmware.
7413 if (phba->sli.mbox_active)
7414 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
7415 phba->sli.mbox_active) *
7417 spin_unlock_irq(&phba->hbalock);
7419 /* Make sure the mailbox is really active */
7421 lpfc_sli4_process_missed_mbox_completions(phba);
7423 /* Wait for the outstnading mailbox command to complete */
7424 while (phba->sli.mbox_active) {
7425 /* Check active mailbox complete status every 2ms */
7427 if (time_after(jiffies, timeout)) {
7428 /* Timeout, marked the outstanding cmd not complete */
7434 /* Can not cleanly block async mailbox command, fails it */
7436 spin_lock_irq(&phba->hbalock);
7437 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7438 spin_unlock_irq(&phba->hbalock);
7444 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
7445 * @phba: Pointer to HBA context object.
7447 * The function unblocks and resume posting of SLI4 asynchronous mailbox
7448 * commands from the driver internal pending mailbox queue. It makes sure
7449 * that there is no outstanding mailbox command before resuming posting
7450 * asynchronous mailbox commands. If, for any reason, there is outstanding
7451 * mailbox command, it will try to wait it out before resuming asynchronous
7452 * mailbox command posting.
7455 lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
7457 struct lpfc_sli *psli = &phba->sli;
7459 spin_lock_irq(&phba->hbalock);
7460 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7461 /* Asynchronous mailbox posting is not blocked, do nothing */
7462 spin_unlock_irq(&phba->hbalock);
7466 /* Outstanding synchronous mailbox command is guaranteed to be done,
7467 * successful or timeout, after timing-out the outstanding mailbox
7468 * command shall always be removed, so just unblock posting async
7469 * mailbox command and resume
7471 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7472 spin_unlock_irq(&phba->hbalock);
7474 /* wake up worker thread to post asynchronlous mailbox command */
7475 lpfc_worker_wake_up(phba);
7479 * lpfc_sli4_wait_bmbx_ready - Wait for bootstrap mailbox register ready
7480 * @phba: Pointer to HBA context object.
7481 * @mboxq: Pointer to mailbox object.
7483 * The function waits for the bootstrap mailbox register ready bit from
7484 * port for twice the regular mailbox command timeout value.
7486 * 0 - no timeout on waiting for bootstrap mailbox register ready.
7487 * MBXERR_ERROR - wait for bootstrap mailbox register timed out.
7490 lpfc_sli4_wait_bmbx_ready(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7493 unsigned long timeout;
7494 struct lpfc_register bmbx_reg;
7496 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mboxq)
7500 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
7501 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
7505 if (time_after(jiffies, timeout))
7506 return MBXERR_ERROR;
7507 } while (!db_ready);
7513 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
7514 * @phba: Pointer to HBA context object.
7515 * @mboxq: Pointer to mailbox object.
7517 * The function posts a mailbox to the port. The mailbox is expected
7518 * to be comletely filled in and ready for the port to operate on it.
7519 * This routine executes a synchronous completion operation on the
7520 * mailbox by polling for its completion.
7522 * The caller must not be holding any locks when calling this routine.
7525 * MBX_SUCCESS - mailbox posted successfully
7526 * Any of the MBX error values.
7529 lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7531 int rc = MBX_SUCCESS;
7532 unsigned long iflag;
7533 uint32_t mcqe_status;
7535 struct lpfc_sli *psli = &phba->sli;
7536 struct lpfc_mqe *mb = &mboxq->u.mqe;
7537 struct lpfc_bmbx_create *mbox_rgn;
7538 struct dma_address *dma_address;
7541 * Only one mailbox can be active to the bootstrap mailbox region
7542 * at a time and there is no queueing provided.
7544 spin_lock_irqsave(&phba->hbalock, iflag);
7545 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7546 spin_unlock_irqrestore(&phba->hbalock, iflag);
7547 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7548 "(%d):2532 Mailbox command x%x (x%x/x%x) "
7549 "cannot issue Data: x%x x%x\n",
7550 mboxq->vport ? mboxq->vport->vpi : 0,
7551 mboxq->u.mb.mbxCommand,
7552 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7553 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7554 psli->sli_flag, MBX_POLL);
7555 return MBXERR_ERROR;
7557 /* The server grabs the token and owns it until release */
7558 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7559 phba->sli.mbox_active = mboxq;
7560 spin_unlock_irqrestore(&phba->hbalock, iflag);
7562 /* wait for bootstrap mbox register for readyness */
7563 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7568 * Initialize the bootstrap memory region to avoid stale data areas
7569 * in the mailbox post. Then copy the caller's mailbox contents to
7570 * the bmbx mailbox region.
7572 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
7573 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
7574 lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
7575 sizeof(struct lpfc_mqe));
7577 /* Post the high mailbox dma address to the port and wait for ready. */
7578 dma_address = &phba->sli4_hba.bmbx.dma_address;
7579 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
7581 /* wait for bootstrap mbox register for hi-address write done */
7582 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7586 /* Post the low mailbox dma address to the port. */
7587 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
7589 /* wait for bootstrap mbox register for low address write done */
7590 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7595 * Read the CQ to ensure the mailbox has completed.
7596 * If so, update the mailbox status so that the upper layers
7597 * can complete the request normally.
7599 lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
7600 sizeof(struct lpfc_mqe));
7601 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
7602 lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
7603 sizeof(struct lpfc_mcqe));
7604 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
7606 * When the CQE status indicates a failure and the mailbox status
7607 * indicates success then copy the CQE status into the mailbox status
7608 * (and prefix it with x4000).
7610 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
7611 if (bf_get(lpfc_mqe_status, mb) == MBX_SUCCESS)
7612 bf_set(lpfc_mqe_status, mb,
7613 (LPFC_MBX_ERROR_RANGE | mcqe_status));
7616 lpfc_sli4_swap_str(phba, mboxq);
7618 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7619 "(%d):0356 Mailbox cmd x%x (x%x/x%x) Status x%x "
7620 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
7621 " x%x x%x CQ: x%x x%x x%x x%x\n",
7622 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
7623 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7624 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7625 bf_get(lpfc_mqe_status, mb),
7626 mb->un.mb_words[0], mb->un.mb_words[1],
7627 mb->un.mb_words[2], mb->un.mb_words[3],
7628 mb->un.mb_words[4], mb->un.mb_words[5],
7629 mb->un.mb_words[6], mb->un.mb_words[7],
7630 mb->un.mb_words[8], mb->un.mb_words[9],
7631 mb->un.mb_words[10], mb->un.mb_words[11],
7632 mb->un.mb_words[12], mboxq->mcqe.word0,
7633 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
7634 mboxq->mcqe.trailer);
7636 /* We are holding the token, no needed for lock when release */
7637 spin_lock_irqsave(&phba->hbalock, iflag);
7638 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7639 phba->sli.mbox_active = NULL;
7640 spin_unlock_irqrestore(&phba->hbalock, iflag);
7645 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
7646 * @phba: Pointer to HBA context object.
7647 * @pmbox: Pointer to mailbox object.
7648 * @flag: Flag indicating how the mailbox need to be processed.
7650 * This function is called by discovery code and HBA management code to submit
7651 * a mailbox command to firmware with SLI-4 interface spec.
7653 * Return codes the caller owns the mailbox command after the return of the
7657 lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
7660 struct lpfc_sli *psli = &phba->sli;
7661 unsigned long iflags;
7664 /* dump from issue mailbox command if setup */
7665 lpfc_idiag_mbxacc_dump_issue_mbox(phba, &mboxq->u.mb);
7667 rc = lpfc_mbox_dev_check(phba);
7669 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7670 "(%d):2544 Mailbox command x%x (x%x/x%x) "
7671 "cannot issue Data: x%x x%x\n",
7672 mboxq->vport ? mboxq->vport->vpi : 0,
7673 mboxq->u.mb.mbxCommand,
7674 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7675 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7676 psli->sli_flag, flag);
7677 goto out_not_finished;
7680 /* Detect polling mode and jump to a handler */
7681 if (!phba->sli4_hba.intr_enable) {
7682 if (flag == MBX_POLL)
7683 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
7686 if (rc != MBX_SUCCESS)
7687 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7688 "(%d):2541 Mailbox command x%x "
7689 "(x%x/x%x) failure: "
7690 "mqe_sta: x%x mcqe_sta: x%x/x%x "
7692 mboxq->vport ? mboxq->vport->vpi : 0,
7693 mboxq->u.mb.mbxCommand,
7694 lpfc_sli_config_mbox_subsys_get(phba,
7696 lpfc_sli_config_mbox_opcode_get(phba,
7698 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
7699 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
7700 bf_get(lpfc_mcqe_ext_status,
7702 psli->sli_flag, flag);
7704 } else if (flag == MBX_POLL) {
7705 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7706 "(%d):2542 Try to issue mailbox command "
7707 "x%x (x%x/x%x) synchronously ahead of async"
7708 "mailbox command queue: x%x x%x\n",
7709 mboxq->vport ? mboxq->vport->vpi : 0,
7710 mboxq->u.mb.mbxCommand,
7711 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7712 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7713 psli->sli_flag, flag);
7714 /* Try to block the asynchronous mailbox posting */
7715 rc = lpfc_sli4_async_mbox_block(phba);
7717 /* Successfully blocked, now issue sync mbox cmd */
7718 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
7719 if (rc != MBX_SUCCESS)
7720 lpfc_printf_log(phba, KERN_WARNING,
7722 "(%d):2597 Sync Mailbox command "
7723 "x%x (x%x/x%x) failure: "
7724 "mqe_sta: x%x mcqe_sta: x%x/x%x "
7726 mboxq->vport ? mboxq->vport->vpi : 0,
7727 mboxq->u.mb.mbxCommand,
7728 lpfc_sli_config_mbox_subsys_get(phba,
7730 lpfc_sli_config_mbox_opcode_get(phba,
7732 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
7733 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
7734 bf_get(lpfc_mcqe_ext_status,
7736 psli->sli_flag, flag);
7737 /* Unblock the async mailbox posting afterward */
7738 lpfc_sli4_async_mbox_unblock(phba);
7743 /* Now, interrupt mode asynchrous mailbox command */
7744 rc = lpfc_mbox_cmd_check(phba, mboxq);
7746 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7747 "(%d):2543 Mailbox command x%x (x%x/x%x) "
7748 "cannot issue Data: x%x x%x\n",
7749 mboxq->vport ? mboxq->vport->vpi : 0,
7750 mboxq->u.mb.mbxCommand,
7751 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7752 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7753 psli->sli_flag, flag);
7754 goto out_not_finished;
7757 /* Put the mailbox command to the driver internal FIFO */
7758 psli->slistat.mbox_busy++;
7759 spin_lock_irqsave(&phba->hbalock, iflags);
7760 lpfc_mbox_put(phba, mboxq);
7761 spin_unlock_irqrestore(&phba->hbalock, iflags);
7762 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7763 "(%d):0354 Mbox cmd issue - Enqueue Data: "
7764 "x%x (x%x/x%x) x%x x%x x%x\n",
7765 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
7766 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
7767 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7768 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7769 phba->pport->port_state,
7770 psli->sli_flag, MBX_NOWAIT);
7771 /* Wake up worker thread to transport mailbox command from head */
7772 lpfc_worker_wake_up(phba);
7777 return MBX_NOT_FINISHED;
7781 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
7782 * @phba: Pointer to HBA context object.
7784 * This function is called by worker thread to send a mailbox command to
7785 * SLI4 HBA firmware.
7789 lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
7791 struct lpfc_sli *psli = &phba->sli;
7792 LPFC_MBOXQ_t *mboxq;
7793 int rc = MBX_SUCCESS;
7794 unsigned long iflags;
7795 struct lpfc_mqe *mqe;
7798 /* Check interrupt mode before post async mailbox command */
7799 if (unlikely(!phba->sli4_hba.intr_enable))
7800 return MBX_NOT_FINISHED;
7802 /* Check for mailbox command service token */
7803 spin_lock_irqsave(&phba->hbalock, iflags);
7804 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7805 spin_unlock_irqrestore(&phba->hbalock, iflags);
7806 return MBX_NOT_FINISHED;
7808 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7809 spin_unlock_irqrestore(&phba->hbalock, iflags);
7810 return MBX_NOT_FINISHED;
7812 if (unlikely(phba->sli.mbox_active)) {
7813 spin_unlock_irqrestore(&phba->hbalock, iflags);
7814 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7815 "0384 There is pending active mailbox cmd\n");
7816 return MBX_NOT_FINISHED;
7818 /* Take the mailbox command service token */
7819 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7821 /* Get the next mailbox command from head of queue */
7822 mboxq = lpfc_mbox_get(phba);
7824 /* If no more mailbox command waiting for post, we're done */
7826 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7827 spin_unlock_irqrestore(&phba->hbalock, iflags);
7830 phba->sli.mbox_active = mboxq;
7831 spin_unlock_irqrestore(&phba->hbalock, iflags);
7833 /* Check device readiness for posting mailbox command */
7834 rc = lpfc_mbox_dev_check(phba);
7836 /* Driver clean routine will clean up pending mailbox */
7837 goto out_not_finished;
7839 /* Prepare the mbox command to be posted */
7840 mqe = &mboxq->u.mqe;
7841 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
7843 /* Start timer for the mbox_tmo and log some mailbox post messages */
7844 mod_timer(&psli->mbox_tmo, (jiffies +
7845 msecs_to_jiffies(1000 * lpfc_mbox_tmo_val(phba, mboxq))));
7847 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7848 "(%d):0355 Mailbox cmd x%x (x%x/x%x) issue Data: "
7850 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
7851 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7852 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7853 phba->pport->port_state, psli->sli_flag);
7855 if (mbx_cmnd != MBX_HEARTBEAT) {
7857 lpfc_debugfs_disc_trc(mboxq->vport,
7858 LPFC_DISC_TRC_MBOX_VPORT,
7859 "MBOX Send vport: cmd:x%x mb:x%x x%x",
7860 mbx_cmnd, mqe->un.mb_words[0],
7861 mqe->un.mb_words[1]);
7863 lpfc_debugfs_disc_trc(phba->pport,
7865 "MBOX Send: cmd:x%x mb:x%x x%x",
7866 mbx_cmnd, mqe->un.mb_words[0],
7867 mqe->un.mb_words[1]);
7870 psli->slistat.mbox_cmd++;
7872 /* Post the mailbox command to the port */
7873 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
7874 if (rc != MBX_SUCCESS) {
7875 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7876 "(%d):2533 Mailbox command x%x (x%x/x%x) "
7877 "cannot issue Data: x%x x%x\n",
7878 mboxq->vport ? mboxq->vport->vpi : 0,
7879 mboxq->u.mb.mbxCommand,
7880 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7881 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7882 psli->sli_flag, MBX_NOWAIT);
7883 goto out_not_finished;
7889 spin_lock_irqsave(&phba->hbalock, iflags);
7890 if (phba->sli.mbox_active) {
7891 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
7892 __lpfc_mbox_cmpl_put(phba, mboxq);
7893 /* Release the token */
7894 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7895 phba->sli.mbox_active = NULL;
7897 spin_unlock_irqrestore(&phba->hbalock, iflags);
7899 return MBX_NOT_FINISHED;
7903 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
7904 * @phba: Pointer to HBA context object.
7905 * @pmbox: Pointer to mailbox object.
7906 * @flag: Flag indicating how the mailbox need to be processed.
7908 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
7909 * the API jump table function pointer from the lpfc_hba struct.
7911 * Return codes the caller owns the mailbox command after the return of the
7915 lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
7917 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
7921 * lpfc_mbox_api_table_setup - Set up mbox api function jump table
7922 * @phba: The hba struct for which this call is being executed.
7923 * @dev_grp: The HBA PCI-Device group number.
7925 * This routine sets up the mbox interface API function jump table in @phba
7927 * Returns: 0 - success, -ENODEV - failure.
7930 lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
7934 case LPFC_PCI_DEV_LP:
7935 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
7936 phba->lpfc_sli_handle_slow_ring_event =
7937 lpfc_sli_handle_slow_ring_event_s3;
7938 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
7939 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
7940 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
7942 case LPFC_PCI_DEV_OC:
7943 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
7944 phba->lpfc_sli_handle_slow_ring_event =
7945 lpfc_sli_handle_slow_ring_event_s4;
7946 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
7947 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
7948 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
7951 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7952 "1420 Invalid HBA PCI-device group: 0x%x\n",
7961 * __lpfc_sli_ringtx_put - Add an iocb to the txq
7962 * @phba: Pointer to HBA context object.
7963 * @pring: Pointer to driver SLI ring object.
7964 * @piocb: Pointer to address of newly added command iocb.
7966 * This function is called with hbalock held to add a command
7967 * iocb to the txq when SLI layer cannot submit the command iocb
7971 __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7972 struct lpfc_iocbq *piocb)
7974 lockdep_assert_held(&phba->hbalock);
7975 /* Insert the caller's iocb in the txq tail for later processing. */
7976 list_add_tail(&piocb->list, &pring->txq);
7980 * lpfc_sli_next_iocb - Get the next iocb in the txq
7981 * @phba: Pointer to HBA context object.
7982 * @pring: Pointer to driver SLI ring object.
7983 * @piocb: Pointer to address of newly added command iocb.
7985 * This function is called with hbalock held before a new
7986 * iocb is submitted to the firmware. This function checks
7987 * txq to flush the iocbs in txq to Firmware before
7988 * submitting new iocbs to the Firmware.
7989 * If there are iocbs in the txq which need to be submitted
7990 * to firmware, lpfc_sli_next_iocb returns the first element
7991 * of the txq after dequeuing it from txq.
7992 * If there is no iocb in the txq then the function will return
7993 * *piocb and *piocb is set to NULL. Caller needs to check
7994 * *piocb to find if there are more commands in the txq.
7996 static struct lpfc_iocbq *
7997 lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7998 struct lpfc_iocbq **piocb)
8000 struct lpfc_iocbq * nextiocb;
8002 lockdep_assert_held(&phba->hbalock);
8004 nextiocb = lpfc_sli_ringtx_get(phba, pring);
8014 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
8015 * @phba: Pointer to HBA context object.
8016 * @ring_number: SLI ring number to issue iocb on.
8017 * @piocb: Pointer to command iocb.
8018 * @flag: Flag indicating if this command can be put into txq.
8020 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
8021 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
8022 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
8023 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
8024 * this function allows only iocbs for posting buffers. This function finds
8025 * next available slot in the command ring and posts the command to the
8026 * available slot and writes the port attention register to request HBA start
8027 * processing new iocb. If there is no slot available in the ring and
8028 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
8029 * the function returns IOCB_BUSY.
8031 * This function is called with hbalock held. The function will return success
8032 * after it successfully submit the iocb to firmware or after adding to the
8036 __lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
8037 struct lpfc_iocbq *piocb, uint32_t flag)
8039 struct lpfc_iocbq *nextiocb;
8041 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
8043 lockdep_assert_held(&phba->hbalock);
8045 if (piocb->iocb_cmpl && (!piocb->vport) &&
8046 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
8047 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
8048 lpfc_printf_log(phba, KERN_ERR,
8049 LOG_SLI | LOG_VPORT,
8050 "1807 IOCB x%x failed. No vport\n",
8051 piocb->iocb.ulpCommand);
8057 /* If the PCI channel is in offline state, do not post iocbs. */
8058 if (unlikely(pci_channel_offline(phba->pcidev)))
8061 /* If HBA has a deferred error attention, fail the iocb. */
8062 if (unlikely(phba->hba_flag & DEFER_ERATT))
8066 * We should never get an IOCB if we are in a < LINK_DOWN state
8068 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
8072 * Check to see if we are blocking IOCB processing because of a
8073 * outstanding event.
8075 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
8078 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
8080 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
8081 * can be issued if the link is not up.
8083 switch (piocb->iocb.ulpCommand) {
8084 case CMD_GEN_REQUEST64_CR:
8085 case CMD_GEN_REQUEST64_CX:
8086 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
8087 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
8088 FC_RCTL_DD_UNSOL_CMD) ||
8089 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
8090 MENLO_TRANSPORT_TYPE))
8094 case CMD_QUE_RING_BUF_CN:
8095 case CMD_QUE_RING_BUF64_CN:
8097 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
8098 * completion, iocb_cmpl MUST be 0.
8100 if (piocb->iocb_cmpl)
8101 piocb->iocb_cmpl = NULL;
8103 case CMD_CREATE_XRI_CR:
8104 case CMD_CLOSE_XRI_CN:
8105 case CMD_CLOSE_XRI_CX:
8112 * For FCP commands, we must be in a state where we can process link
8115 } else if (unlikely(pring->ringno == phba->sli.fcp_ring &&
8116 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
8120 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
8121 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
8122 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
8125 lpfc_sli_update_ring(phba, pring);
8127 lpfc_sli_update_full_ring(phba, pring);
8130 return IOCB_SUCCESS;
8135 pring->stats.iocb_cmd_delay++;
8139 if (!(flag & SLI_IOCB_RET_IOCB)) {
8140 __lpfc_sli_ringtx_put(phba, pring, piocb);
8141 return IOCB_SUCCESS;
8148 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
8149 * @phba: Pointer to HBA context object.
8150 * @piocb: Pointer to command iocb.
8151 * @sglq: Pointer to the scatter gather queue object.
8153 * This routine converts the bpl or bde that is in the IOCB
8154 * to a sgl list for the sli4 hardware. The physical address
8155 * of the bpl/bde is converted back to a virtual address.
8156 * If the IOCB contains a BPL then the list of BDE's is
8157 * converted to sli4_sge's. If the IOCB contains a single
8158 * BDE then it is converted to a single sli_sge.
8159 * The IOCB is still in cpu endianess so the contents of
8160 * the bpl can be used without byte swapping.
8162 * Returns valid XRI = Success, NO_XRI = Failure.
8165 lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
8166 struct lpfc_sglq *sglq)
8168 uint16_t xritag = NO_XRI;
8169 struct ulp_bde64 *bpl = NULL;
8170 struct ulp_bde64 bde;
8171 struct sli4_sge *sgl = NULL;
8172 struct lpfc_dmabuf *dmabuf;
8176 uint32_t offset = 0; /* accumulated offset in the sg request list */
8177 int inbound = 0; /* number of sg reply entries inbound from firmware */
8179 if (!piocbq || !sglq)
8182 sgl = (struct sli4_sge *)sglq->sgl;
8183 icmd = &piocbq->iocb;
8184 if (icmd->ulpCommand == CMD_XMIT_BLS_RSP64_CX)
8185 return sglq->sli4_xritag;
8186 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
8187 numBdes = icmd->un.genreq64.bdl.bdeSize /
8188 sizeof(struct ulp_bde64);
8189 /* The addrHigh and addrLow fields within the IOCB
8190 * have not been byteswapped yet so there is no
8191 * need to swap them back.
8193 if (piocbq->context3)
8194 dmabuf = (struct lpfc_dmabuf *)piocbq->context3;
8198 bpl = (struct ulp_bde64 *)dmabuf->virt;
8202 for (i = 0; i < numBdes; i++) {
8203 /* Should already be byte swapped. */
8204 sgl->addr_hi = bpl->addrHigh;
8205 sgl->addr_lo = bpl->addrLow;
8207 sgl->word2 = le32_to_cpu(sgl->word2);
8208 if ((i+1) == numBdes)
8209 bf_set(lpfc_sli4_sge_last, sgl, 1);
8211 bf_set(lpfc_sli4_sge_last, sgl, 0);
8212 /* swap the size field back to the cpu so we
8213 * can assign it to the sgl.
8215 bde.tus.w = le32_to_cpu(bpl->tus.w);
8216 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
8217 /* The offsets in the sgl need to be accumulated
8218 * separately for the request and reply lists.
8219 * The request is always first, the reply follows.
8221 if (piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) {
8222 /* add up the reply sg entries */
8223 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
8225 /* first inbound? reset the offset */
8228 bf_set(lpfc_sli4_sge_offset, sgl, offset);
8229 bf_set(lpfc_sli4_sge_type, sgl,
8230 LPFC_SGE_TYPE_DATA);
8231 offset += bde.tus.f.bdeSize;
8233 sgl->word2 = cpu_to_le32(sgl->word2);
8237 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
8238 /* The addrHigh and addrLow fields of the BDE have not
8239 * been byteswapped yet so they need to be swapped
8240 * before putting them in the sgl.
8243 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
8245 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
8246 sgl->word2 = le32_to_cpu(sgl->word2);
8247 bf_set(lpfc_sli4_sge_last, sgl, 1);
8248 sgl->word2 = cpu_to_le32(sgl->word2);
8250 cpu_to_le32(icmd->un.genreq64.bdl.bdeSize);
8252 return sglq->sli4_xritag;
8256 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
8257 * @phba: Pointer to HBA context object.
8258 * @piocb: Pointer to command iocb.
8259 * @wqe: Pointer to the work queue entry.
8261 * This routine converts the iocb command to its Work Queue Entry
8262 * equivalent. The wqe pointer should not have any fields set when
8263 * this routine is called because it will memcpy over them.
8264 * This routine does not set the CQ_ID or the WQEC bits in the
8267 * Returns: 0 = Success, IOCB_ERROR = Failure.
8270 lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
8271 union lpfc_wqe *wqe)
8273 uint32_t xmit_len = 0, total_len = 0;
8277 uint8_t command_type = ELS_COMMAND_NON_FIP;
8280 uint16_t abrt_iotag;
8281 struct lpfc_iocbq *abrtiocbq;
8282 struct ulp_bde64 *bpl = NULL;
8283 uint32_t els_id = LPFC_ELS_ID_DEFAULT;
8285 struct ulp_bde64 bde;
8286 struct lpfc_nodelist *ndlp;
8290 fip = phba->hba_flag & HBA_FIP_SUPPORT;
8291 /* The fcp commands will set command type */
8292 if (iocbq->iocb_flag & LPFC_IO_FCP)
8293 command_type = FCP_COMMAND;
8294 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
8295 command_type = ELS_COMMAND_FIP;
8297 command_type = ELS_COMMAND_NON_FIP;
8299 if (phba->fcp_embed_io)
8300 memset(wqe, 0, sizeof(union lpfc_wqe128));
8301 /* Some of the fields are in the right position already */
8302 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
8303 wqe->generic.wqe_com.word7 = 0; /* The ct field has moved so reset */
8304 wqe->generic.wqe_com.word10 = 0;
8306 abort_tag = (uint32_t) iocbq->iotag;
8307 xritag = iocbq->sli4_xritag;
8308 /* words0-2 bpl convert bde */
8309 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
8310 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
8311 sizeof(struct ulp_bde64);
8312 bpl = (struct ulp_bde64 *)
8313 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
8317 /* Should already be byte swapped. */
8318 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
8319 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
8320 /* swap the size field back to the cpu so we
8321 * can assign it to the sgl.
8323 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
8324 xmit_len = wqe->generic.bde.tus.f.bdeSize;
8326 for (i = 0; i < numBdes; i++) {
8327 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
8328 total_len += bde.tus.f.bdeSize;
8331 xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
8333 iocbq->iocb.ulpIoTag = iocbq->iotag;
8334 cmnd = iocbq->iocb.ulpCommand;
8336 switch (iocbq->iocb.ulpCommand) {
8337 case CMD_ELS_REQUEST64_CR:
8338 if (iocbq->iocb_flag & LPFC_IO_LIBDFC)
8339 ndlp = iocbq->context_un.ndlp;
8341 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8342 if (!iocbq->iocb.ulpLe) {
8343 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8344 "2007 Only Limited Edition cmd Format"
8345 " supported 0x%x\n",
8346 iocbq->iocb.ulpCommand);
8350 wqe->els_req.payload_len = xmit_len;
8351 /* Els_reguest64 has a TMO */
8352 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
8353 iocbq->iocb.ulpTimeout);
8354 /* Need a VF for word 4 set the vf bit*/
8355 bf_set(els_req64_vf, &wqe->els_req, 0);
8356 /* And a VFID for word 12 */
8357 bf_set(els_req64_vfid, &wqe->els_req, 0);
8358 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
8359 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8360 iocbq->iocb.ulpContext);
8361 bf_set(wqe_ct, &wqe->els_req.wqe_com, ct);
8362 bf_set(wqe_pu, &wqe->els_req.wqe_com, 0);
8363 /* CCP CCPE PV PRI in word10 were set in the memcpy */
8364 if (command_type == ELS_COMMAND_FIP)
8365 els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
8366 >> LPFC_FIP_ELS_ID_SHIFT);
8367 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
8368 iocbq->context2)->virt);
8369 if_type = bf_get(lpfc_sli_intf_if_type,
8370 &phba->sli4_hba.sli_intf);
8371 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8372 if (pcmd && (*pcmd == ELS_CMD_FLOGI ||
8373 *pcmd == ELS_CMD_SCR ||
8374 *pcmd == ELS_CMD_FDISC ||
8375 *pcmd == ELS_CMD_LOGO ||
8376 *pcmd == ELS_CMD_PLOGI)) {
8377 bf_set(els_req64_sp, &wqe->els_req, 1);
8378 bf_set(els_req64_sid, &wqe->els_req,
8379 iocbq->vport->fc_myDID);
8380 if ((*pcmd == ELS_CMD_FLOGI) &&
8381 !(phba->fc_topology ==
8382 LPFC_TOPOLOGY_LOOP))
8383 bf_set(els_req64_sid, &wqe->els_req, 0);
8384 bf_set(wqe_ct, &wqe->els_req.wqe_com, 1);
8385 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8386 phba->vpi_ids[iocbq->vport->vpi]);
8387 } else if (pcmd && iocbq->context1) {
8388 bf_set(wqe_ct, &wqe->els_req.wqe_com, 0);
8389 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8390 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8393 bf_set(wqe_temp_rpi, &wqe->els_req.wqe_com,
8394 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8395 bf_set(wqe_els_id, &wqe->els_req.wqe_com, els_id);
8396 bf_set(wqe_dbde, &wqe->els_req.wqe_com, 1);
8397 bf_set(wqe_iod, &wqe->els_req.wqe_com, LPFC_WQE_IOD_READ);
8398 bf_set(wqe_qosd, &wqe->els_req.wqe_com, 1);
8399 bf_set(wqe_lenloc, &wqe->els_req.wqe_com, LPFC_WQE_LENLOC_NONE);
8400 bf_set(wqe_ebde_cnt, &wqe->els_req.wqe_com, 0);
8401 wqe->els_req.max_response_payload_len = total_len - xmit_len;
8403 case CMD_XMIT_SEQUENCE64_CX:
8404 bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com,
8405 iocbq->iocb.un.ulpWord[3]);
8406 bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com,
8407 iocbq->iocb.unsli3.rcvsli3.ox_id);
8408 /* The entire sequence is transmitted for this IOCB */
8409 xmit_len = total_len;
8410 cmnd = CMD_XMIT_SEQUENCE64_CR;
8411 if (phba->link_flag & LS_LOOPBACK_MODE)
8412 bf_set(wqe_xo, &wqe->xmit_sequence.wge_ctl, 1);
8413 case CMD_XMIT_SEQUENCE64_CR:
8414 /* word3 iocb=io_tag32 wqe=reserved */
8415 wqe->xmit_sequence.rsvd3 = 0;
8416 /* word4 relative_offset memcpy */
8417 /* word5 r_ctl/df_ctl memcpy */
8418 bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0);
8419 bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1);
8420 bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com,
8421 LPFC_WQE_IOD_WRITE);
8422 bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com,
8423 LPFC_WQE_LENLOC_WORD12);
8424 bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0);
8425 wqe->xmit_sequence.xmit_len = xmit_len;
8426 command_type = OTHER_COMMAND;
8428 case CMD_XMIT_BCAST64_CN:
8429 /* word3 iocb=iotag32 wqe=seq_payload_len */
8430 wqe->xmit_bcast64.seq_payload_len = xmit_len;
8431 /* word4 iocb=rsvd wqe=rsvd */
8432 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
8433 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
8434 bf_set(wqe_ct, &wqe->xmit_bcast64.wqe_com,
8435 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8436 bf_set(wqe_dbde, &wqe->xmit_bcast64.wqe_com, 1);
8437 bf_set(wqe_iod, &wqe->xmit_bcast64.wqe_com, LPFC_WQE_IOD_WRITE);
8438 bf_set(wqe_lenloc, &wqe->xmit_bcast64.wqe_com,
8439 LPFC_WQE_LENLOC_WORD3);
8440 bf_set(wqe_ebde_cnt, &wqe->xmit_bcast64.wqe_com, 0);
8442 case CMD_FCP_IWRITE64_CR:
8443 command_type = FCP_COMMAND_DATA_OUT;
8444 /* word3 iocb=iotag wqe=payload_offset_len */
8445 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8446 bf_set(payload_offset_len, &wqe->fcp_iwrite,
8447 xmit_len + sizeof(struct fcp_rsp));
8448 bf_set(cmd_buff_len, &wqe->fcp_iwrite,
8450 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8451 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8452 bf_set(wqe_erp, &wqe->fcp_iwrite.wqe_com,
8453 iocbq->iocb.ulpFCP2Rcvy);
8454 bf_set(wqe_lnk, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpXS);
8455 /* Always open the exchange */
8456 bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE);
8457 bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com,
8458 LPFC_WQE_LENLOC_WORD4);
8459 bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpPU);
8460 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 1);
8461 if (iocbq->iocb_flag & LPFC_IO_OAS) {
8462 bf_set(wqe_oas, &wqe->fcp_iwrite.wqe_com, 1);
8463 bf_set(wqe_ccpe, &wqe->fcp_iwrite.wqe_com, 1);
8464 if (iocbq->priority) {
8465 bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
8466 (iocbq->priority << 1));
8468 bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
8469 (phba->cfg_XLanePriority << 1));
8472 /* Note, word 10 is already initialized to 0 */
8474 if (phba->fcp_embed_io) {
8475 struct lpfc_scsi_buf *lpfc_cmd;
8476 struct sli4_sge *sgl;
8477 union lpfc_wqe128 *wqe128;
8478 struct fcp_cmnd *fcp_cmnd;
8481 /* 128 byte wqe support here */
8482 wqe128 = (union lpfc_wqe128 *)wqe;
8484 lpfc_cmd = iocbq->context1;
8485 sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl;
8486 fcp_cmnd = lpfc_cmd->fcp_cmnd;
8488 /* Word 0-2 - FCP_CMND */
8489 wqe128->generic.bde.tus.f.bdeFlags =
8490 BUFF_TYPE_BDE_IMMED;
8491 wqe128->generic.bde.tus.f.bdeSize = sgl->sge_len;
8492 wqe128->generic.bde.addrHigh = 0;
8493 wqe128->generic.bde.addrLow = 88; /* Word 22 */
8495 bf_set(wqe_wqes, &wqe128->fcp_iwrite.wqe_com, 1);
8497 /* Word 22-29 FCP CMND Payload */
8498 ptr = &wqe128->words[22];
8499 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
8502 case CMD_FCP_IREAD64_CR:
8503 /* word3 iocb=iotag wqe=payload_offset_len */
8504 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8505 bf_set(payload_offset_len, &wqe->fcp_iread,
8506 xmit_len + sizeof(struct fcp_rsp));
8507 bf_set(cmd_buff_len, &wqe->fcp_iread,
8509 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8510 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8511 bf_set(wqe_erp, &wqe->fcp_iread.wqe_com,
8512 iocbq->iocb.ulpFCP2Rcvy);
8513 bf_set(wqe_lnk, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpXS);
8514 /* Always open the exchange */
8515 bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ);
8516 bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com,
8517 LPFC_WQE_LENLOC_WORD4);
8518 bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpPU);
8519 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 1);
8520 if (iocbq->iocb_flag & LPFC_IO_OAS) {
8521 bf_set(wqe_oas, &wqe->fcp_iread.wqe_com, 1);
8522 bf_set(wqe_ccpe, &wqe->fcp_iread.wqe_com, 1);
8523 if (iocbq->priority) {
8524 bf_set(wqe_ccp, &wqe->fcp_iread.wqe_com,
8525 (iocbq->priority << 1));
8527 bf_set(wqe_ccp, &wqe->fcp_iread.wqe_com,
8528 (phba->cfg_XLanePriority << 1));
8531 /* Note, word 10 is already initialized to 0 */
8533 if (phba->fcp_embed_io) {
8534 struct lpfc_scsi_buf *lpfc_cmd;
8535 struct sli4_sge *sgl;
8536 union lpfc_wqe128 *wqe128;
8537 struct fcp_cmnd *fcp_cmnd;
8540 /* 128 byte wqe support here */
8541 wqe128 = (union lpfc_wqe128 *)wqe;
8543 lpfc_cmd = iocbq->context1;
8544 sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl;
8545 fcp_cmnd = lpfc_cmd->fcp_cmnd;
8547 /* Word 0-2 - FCP_CMND */
8548 wqe128->generic.bde.tus.f.bdeFlags =
8549 BUFF_TYPE_BDE_IMMED;
8550 wqe128->generic.bde.tus.f.bdeSize = sgl->sge_len;
8551 wqe128->generic.bde.addrHigh = 0;
8552 wqe128->generic.bde.addrLow = 88; /* Word 22 */
8554 bf_set(wqe_wqes, &wqe128->fcp_iread.wqe_com, 1);
8556 /* Word 22-29 FCP CMND Payload */
8557 ptr = &wqe128->words[22];
8558 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
8561 case CMD_FCP_ICMND64_CR:
8562 /* word3 iocb=iotag wqe=payload_offset_len */
8563 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8564 bf_set(payload_offset_len, &wqe->fcp_icmd,
8565 xmit_len + sizeof(struct fcp_rsp));
8566 bf_set(cmd_buff_len, &wqe->fcp_icmd,
8568 /* word3 iocb=IO_TAG wqe=reserved */
8569 bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0);
8570 /* Always open the exchange */
8571 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 1);
8572 bf_set(wqe_iod, &wqe->fcp_icmd.wqe_com, LPFC_WQE_IOD_WRITE);
8573 bf_set(wqe_qosd, &wqe->fcp_icmd.wqe_com, 1);
8574 bf_set(wqe_lenloc, &wqe->fcp_icmd.wqe_com,
8575 LPFC_WQE_LENLOC_NONE);
8576 bf_set(wqe_erp, &wqe->fcp_icmd.wqe_com,
8577 iocbq->iocb.ulpFCP2Rcvy);
8578 if (iocbq->iocb_flag & LPFC_IO_OAS) {
8579 bf_set(wqe_oas, &wqe->fcp_icmd.wqe_com, 1);
8580 bf_set(wqe_ccpe, &wqe->fcp_icmd.wqe_com, 1);
8581 if (iocbq->priority) {
8582 bf_set(wqe_ccp, &wqe->fcp_icmd.wqe_com,
8583 (iocbq->priority << 1));
8585 bf_set(wqe_ccp, &wqe->fcp_icmd.wqe_com,
8586 (phba->cfg_XLanePriority << 1));
8589 /* Note, word 10 is already initialized to 0 */
8591 if (phba->fcp_embed_io) {
8592 struct lpfc_scsi_buf *lpfc_cmd;
8593 struct sli4_sge *sgl;
8594 union lpfc_wqe128 *wqe128;
8595 struct fcp_cmnd *fcp_cmnd;
8598 /* 128 byte wqe support here */
8599 wqe128 = (union lpfc_wqe128 *)wqe;
8601 lpfc_cmd = iocbq->context1;
8602 sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl;
8603 fcp_cmnd = lpfc_cmd->fcp_cmnd;
8605 /* Word 0-2 - FCP_CMND */
8606 wqe128->generic.bde.tus.f.bdeFlags =
8607 BUFF_TYPE_BDE_IMMED;
8608 wqe128->generic.bde.tus.f.bdeSize = sgl->sge_len;
8609 wqe128->generic.bde.addrHigh = 0;
8610 wqe128->generic.bde.addrLow = 88; /* Word 22 */
8612 bf_set(wqe_wqes, &wqe128->fcp_icmd.wqe_com, 1);
8614 /* Word 22-29 FCP CMND Payload */
8615 ptr = &wqe128->words[22];
8616 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
8619 case CMD_GEN_REQUEST64_CR:
8620 /* For this command calculate the xmit length of the
8624 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
8625 sizeof(struct ulp_bde64);
8626 for (i = 0; i < numBdes; i++) {
8627 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
8628 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
8630 xmit_len += bde.tus.f.bdeSize;
8632 /* word3 iocb=IO_TAG wqe=request_payload_len */
8633 wqe->gen_req.request_payload_len = xmit_len;
8634 /* word4 iocb=parameter wqe=relative_offset memcpy */
8635 /* word5 [rctl, type, df_ctl, la] copied in memcpy */
8636 /* word6 context tag copied in memcpy */
8637 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
8638 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
8639 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8640 "2015 Invalid CT %x command 0x%x\n",
8641 ct, iocbq->iocb.ulpCommand);
8644 bf_set(wqe_ct, &wqe->gen_req.wqe_com, 0);
8645 bf_set(wqe_tmo, &wqe->gen_req.wqe_com, iocbq->iocb.ulpTimeout);
8646 bf_set(wqe_pu, &wqe->gen_req.wqe_com, iocbq->iocb.ulpPU);
8647 bf_set(wqe_dbde, &wqe->gen_req.wqe_com, 1);
8648 bf_set(wqe_iod, &wqe->gen_req.wqe_com, LPFC_WQE_IOD_READ);
8649 bf_set(wqe_qosd, &wqe->gen_req.wqe_com, 1);
8650 bf_set(wqe_lenloc, &wqe->gen_req.wqe_com, LPFC_WQE_LENLOC_NONE);
8651 bf_set(wqe_ebde_cnt, &wqe->gen_req.wqe_com, 0);
8652 wqe->gen_req.max_response_payload_len = total_len - xmit_len;
8653 command_type = OTHER_COMMAND;
8655 case CMD_XMIT_ELS_RSP64_CX:
8656 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8657 /* words0-2 BDE memcpy */
8658 /* word3 iocb=iotag32 wqe=response_payload_len */
8659 wqe->xmit_els_rsp.response_payload_len = xmit_len;
8661 wqe->xmit_els_rsp.word4 = 0;
8662 /* word5 iocb=rsvd wge=did */
8663 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
8664 iocbq->iocb.un.xseq64.xmit_els_remoteID);
8666 if_type = bf_get(lpfc_sli_intf_if_type,
8667 &phba->sli4_hba.sli_intf);
8668 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8669 if (iocbq->vport->fc_flag & FC_PT2PT) {
8670 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
8671 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
8672 iocbq->vport->fc_myDID);
8673 if (iocbq->vport->fc_myDID == Fabric_DID) {
8675 &wqe->xmit_els_rsp.wqe_dest, 0);
8679 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com,
8680 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8681 bf_set(wqe_pu, &wqe->xmit_els_rsp.wqe_com, iocbq->iocb.ulpPU);
8682 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
8683 iocbq->iocb.unsli3.rcvsli3.ox_id);
8684 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
8685 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
8686 phba->vpi_ids[iocbq->vport->vpi]);
8687 bf_set(wqe_dbde, &wqe->xmit_els_rsp.wqe_com, 1);
8688 bf_set(wqe_iod, &wqe->xmit_els_rsp.wqe_com, LPFC_WQE_IOD_WRITE);
8689 bf_set(wqe_qosd, &wqe->xmit_els_rsp.wqe_com, 1);
8690 bf_set(wqe_lenloc, &wqe->xmit_els_rsp.wqe_com,
8691 LPFC_WQE_LENLOC_WORD3);
8692 bf_set(wqe_ebde_cnt, &wqe->xmit_els_rsp.wqe_com, 0);
8693 bf_set(wqe_rsp_temp_rpi, &wqe->xmit_els_rsp,
8694 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8695 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
8696 iocbq->context2)->virt);
8697 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
8698 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
8699 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
8700 iocbq->vport->fc_myDID);
8701 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com, 1);
8702 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
8703 phba->vpi_ids[phba->pport->vpi]);
8705 command_type = OTHER_COMMAND;
8707 case CMD_CLOSE_XRI_CN:
8708 case CMD_ABORT_XRI_CN:
8709 case CMD_ABORT_XRI_CX:
8710 /* words 0-2 memcpy should be 0 rserved */
8711 /* port will send abts */
8712 abrt_iotag = iocbq->iocb.un.acxri.abortContextTag;
8713 if (abrt_iotag != 0 && abrt_iotag <= phba->sli.last_iotag) {
8714 abrtiocbq = phba->sli.iocbq_lookup[abrt_iotag];
8715 fip = abrtiocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK;
8719 if ((iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN) || fip)
8721 * The link is down, or the command was ELS_FIP
8722 * so the fw does not need to send abts
8725 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
8727 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
8728 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
8729 /* word5 iocb=CONTEXT_TAG|IO_TAG wqe=reserved */
8730 wqe->abort_cmd.rsrvd5 = 0;
8731 bf_set(wqe_ct, &wqe->abort_cmd.wqe_com,
8732 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8733 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
8735 * The abort handler will send us CMD_ABORT_XRI_CN or
8736 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
8738 bf_set(wqe_cmnd, &wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
8739 bf_set(wqe_qosd, &wqe->abort_cmd.wqe_com, 1);
8740 bf_set(wqe_lenloc, &wqe->abort_cmd.wqe_com,
8741 LPFC_WQE_LENLOC_NONE);
8742 cmnd = CMD_ABORT_XRI_CX;
8743 command_type = OTHER_COMMAND;
8746 case CMD_XMIT_BLS_RSP64_CX:
8747 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8748 /* As BLS ABTS RSP WQE is very different from other WQEs,
8749 * we re-construct this WQE here based on information in
8750 * iocbq from scratch.
8752 memset(wqe, 0, sizeof(union lpfc_wqe));
8753 /* OX_ID is invariable to who sent ABTS to CT exchange */
8754 bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
8755 bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_rsp));
8756 if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_rsp) ==
8757 LPFC_ABTS_UNSOL_INT) {
8758 /* ABTS sent by initiator to CT exchange, the
8759 * RX_ID field will be filled with the newly
8760 * allocated responder XRI.
8762 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
8763 iocbq->sli4_xritag);
8765 /* ABTS sent by responder to CT exchange, the
8766 * RX_ID field will be filled with the responder
8769 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
8770 bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_rsp));
8772 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
8773 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
8776 bf_set(wqe_els_did, &wqe->xmit_bls_rsp.wqe_dest,
8778 bf_set(xmit_bls_rsp64_temprpi, &wqe->xmit_bls_rsp,
8779 iocbq->iocb.ulpContext);
8780 bf_set(wqe_ct, &wqe->xmit_bls_rsp.wqe_com, 1);
8781 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
8782 phba->vpi_ids[phba->pport->vpi]);
8783 bf_set(wqe_qosd, &wqe->xmit_bls_rsp.wqe_com, 1);
8784 bf_set(wqe_lenloc, &wqe->xmit_bls_rsp.wqe_com,
8785 LPFC_WQE_LENLOC_NONE);
8786 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
8787 command_type = OTHER_COMMAND;
8788 if (iocbq->iocb.un.xseq64.w5.hcsw.Rctl == FC_RCTL_BA_RJT) {
8789 bf_set(xmit_bls_rsp64_rjt_vspec, &wqe->xmit_bls_rsp,
8790 bf_get(lpfc_vndr_code, &iocbq->iocb.un.bls_rsp));
8791 bf_set(xmit_bls_rsp64_rjt_expc, &wqe->xmit_bls_rsp,
8792 bf_get(lpfc_rsn_expln, &iocbq->iocb.un.bls_rsp));
8793 bf_set(xmit_bls_rsp64_rjt_rsnc, &wqe->xmit_bls_rsp,
8794 bf_get(lpfc_rsn_code, &iocbq->iocb.un.bls_rsp));
8798 case CMD_XRI_ABORTED_CX:
8799 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
8800 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
8801 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
8802 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
8803 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
8805 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8806 "2014 Invalid command 0x%x\n",
8807 iocbq->iocb.ulpCommand);
8812 if (iocbq->iocb_flag & LPFC_IO_DIF_PASS)
8813 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_PASSTHRU);
8814 else if (iocbq->iocb_flag & LPFC_IO_DIF_STRIP)
8815 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_STRIP);
8816 else if (iocbq->iocb_flag & LPFC_IO_DIF_INSERT)
8817 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_INSERT);
8818 iocbq->iocb_flag &= ~(LPFC_IO_DIF_PASS | LPFC_IO_DIF_STRIP |
8819 LPFC_IO_DIF_INSERT);
8820 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
8821 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
8822 wqe->generic.wqe_com.abort_tag = abort_tag;
8823 bf_set(wqe_cmd_type, &wqe->generic.wqe_com, command_type);
8824 bf_set(wqe_cmnd, &wqe->generic.wqe_com, cmnd);
8825 bf_set(wqe_class, &wqe->generic.wqe_com, iocbq->iocb.ulpClass);
8826 bf_set(wqe_cqid, &wqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
8831 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
8832 * @phba: Pointer to HBA context object.
8833 * @ring_number: SLI ring number to issue iocb on.
8834 * @piocb: Pointer to command iocb.
8835 * @flag: Flag indicating if this command can be put into txq.
8837 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
8838 * an iocb command to an HBA with SLI-4 interface spec.
8840 * This function is called with hbalock held. The function will return success
8841 * after it successfully submit the iocb to firmware or after adding to the
8845 __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
8846 struct lpfc_iocbq *piocb, uint32_t flag)
8848 struct lpfc_sglq *sglq;
8849 union lpfc_wqe *wqe;
8850 union lpfc_wqe128 wqe128;
8851 struct lpfc_queue *wq;
8852 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
8854 lockdep_assert_held(&phba->hbalock);
8857 * The WQE can be either 64 or 128 bytes,
8858 * so allocate space on the stack assuming the largest.
8860 wqe = (union lpfc_wqe *)&wqe128;
8862 if (piocb->sli4_xritag == NO_XRI) {
8863 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
8864 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
8867 if (!list_empty(&pring->txq)) {
8868 if (!(flag & SLI_IOCB_RET_IOCB)) {
8869 __lpfc_sli_ringtx_put(phba,
8871 return IOCB_SUCCESS;
8876 sglq = __lpfc_sli_get_sglq(phba, piocb);
8878 if (!(flag & SLI_IOCB_RET_IOCB)) {
8879 __lpfc_sli_ringtx_put(phba,
8882 return IOCB_SUCCESS;
8888 } else if (piocb->iocb_flag & LPFC_IO_FCP) {
8889 /* These IO's already have an XRI and a mapped sgl. */
8893 * This is a continuation of a commandi,(CX) so this
8894 * sglq is on the active list
8896 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_lxritag);
8902 piocb->sli4_lxritag = sglq->sli4_lxritag;
8903 piocb->sli4_xritag = sglq->sli4_xritag;
8904 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocb, sglq))
8908 if (lpfc_sli4_iocb2wqe(phba, piocb, wqe))
8911 if ((piocb->iocb_flag & LPFC_IO_FCP) ||
8912 (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
8913 if (!phba->cfg_fof || (!(piocb->iocb_flag & LPFC_IO_OAS))) {
8914 wq = phba->sli4_hba.fcp_wq[piocb->fcp_wqidx];
8916 wq = phba->sli4_hba.oas_wq;
8918 if (lpfc_sli4_wq_put(wq, wqe))
8921 if (unlikely(!phba->sli4_hba.els_wq))
8923 if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, wqe))
8926 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
8932 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
8934 * This routine wraps the actual lockless version for issusing IOCB function
8935 * pointer from the lpfc_hba struct.
8938 * IOCB_ERROR - Error
8939 * IOCB_SUCCESS - Success
8943 __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
8944 struct lpfc_iocbq *piocb, uint32_t flag)
8946 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
8950 * lpfc_sli_api_table_setup - Set up sli api function jump table
8951 * @phba: The hba struct for which this call is being executed.
8952 * @dev_grp: The HBA PCI-Device group number.
8954 * This routine sets up the SLI interface API function jump table in @phba
8956 * Returns: 0 - success, -ENODEV - failure.
8959 lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
8963 case LPFC_PCI_DEV_LP:
8964 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
8965 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
8967 case LPFC_PCI_DEV_OC:
8968 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
8969 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
8972 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8973 "1419 Invalid HBA PCI-device group: 0x%x\n",
8978 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
8983 * lpfc_sli_calc_ring - Calculates which ring to use
8984 * @phba: Pointer to HBA context object.
8985 * @ring_number: Initial ring
8986 * @piocb: Pointer to command iocb.
8988 * For SLI4, FCP IO can deferred to one fo many WQs, based on
8989 * fcp_wqidx, thus we need to calculate the corresponding ring.
8990 * Since ABORTS must go on the same WQ of the command they are
8991 * aborting, we use command's fcp_wqidx.
8994 lpfc_sli_calc_ring(struct lpfc_hba *phba, uint32_t ring_number,
8995 struct lpfc_iocbq *piocb)
8997 if (phba->sli_rev < LPFC_SLI_REV4)
9000 if (piocb->iocb_flag & (LPFC_IO_FCP | LPFC_USE_FCPWQIDX)) {
9001 if (!(phba->cfg_fof) ||
9002 (!(piocb->iocb_flag & LPFC_IO_FOF))) {
9003 if (unlikely(!phba->sli4_hba.fcp_wq))
9004 return LPFC_HBA_ERROR;
9006 * for abort iocb fcp_wqidx should already
9007 * be setup based on what work queue we used.
9009 if (!(piocb->iocb_flag & LPFC_USE_FCPWQIDX))
9011 lpfc_sli4_scmd_to_wqidx_distr(phba,
9013 ring_number = MAX_SLI3_CONFIGURED_RINGS +
9016 if (unlikely(!phba->sli4_hba.oas_wq))
9017 return LPFC_HBA_ERROR;
9018 piocb->fcp_wqidx = 0;
9019 ring_number = LPFC_FCP_OAS_RING;
9026 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
9027 * @phba: Pointer to HBA context object.
9028 * @pring: Pointer to driver SLI ring object.
9029 * @piocb: Pointer to command iocb.
9030 * @flag: Flag indicating if this command can be put into txq.
9032 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
9033 * function. This function gets the hbalock and calls
9034 * __lpfc_sli_issue_iocb function and will return the error returned
9035 * by __lpfc_sli_issue_iocb function. This wrapper is used by
9036 * functions which do not hold hbalock.
9039 lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
9040 struct lpfc_iocbq *piocb, uint32_t flag)
9042 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
9043 struct lpfc_sli_ring *pring;
9044 struct lpfc_queue *fpeq;
9045 struct lpfc_eqe *eqe;
9046 unsigned long iflags;
9049 if (phba->sli_rev == LPFC_SLI_REV4) {
9050 ring_number = lpfc_sli_calc_ring(phba, ring_number, piocb);
9051 if (unlikely(ring_number == LPFC_HBA_ERROR))
9053 idx = piocb->fcp_wqidx;
9055 pring = &phba->sli.ring[ring_number];
9056 spin_lock_irqsave(&pring->ring_lock, iflags);
9057 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
9058 spin_unlock_irqrestore(&pring->ring_lock, iflags);
9060 if (lpfc_fcp_look_ahead && (piocb->iocb_flag & LPFC_IO_FCP)) {
9061 fcp_eq_hdl = &phba->sli4_hba.fcp_eq_hdl[idx];
9063 if (atomic_dec_and_test(&fcp_eq_hdl->
9066 /* Get associated EQ with this index */
9067 fpeq = phba->sli4_hba.hba_eq[idx];
9069 /* Turn off interrupts from this EQ */
9070 lpfc_sli4_eq_clr_intr(fpeq);
9073 * Process all the events on FCP EQ
9075 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
9076 lpfc_sli4_hba_handle_eqe(phba,
9078 fpeq->EQ_processed++;
9081 /* Always clear and re-arm the EQ */
9082 lpfc_sli4_eq_release(fpeq,
9085 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
9088 /* For now, SLI2/3 will still use hbalock */
9089 spin_lock_irqsave(&phba->hbalock, iflags);
9090 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
9091 spin_unlock_irqrestore(&phba->hbalock, iflags);
9097 * lpfc_extra_ring_setup - Extra ring setup function
9098 * @phba: Pointer to HBA context object.
9100 * This function is called while driver attaches with the
9101 * HBA to setup the extra ring. The extra ring is used
9102 * only when driver needs to support target mode functionality
9103 * or IP over FC functionalities.
9105 * This function is called with no lock held.
9108 lpfc_extra_ring_setup( struct lpfc_hba *phba)
9110 struct lpfc_sli *psli;
9111 struct lpfc_sli_ring *pring;
9115 /* Adjust cmd/rsp ring iocb entries more evenly */
9117 /* Take some away from the FCP ring */
9118 pring = &psli->ring[psli->fcp_ring];
9119 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
9120 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
9121 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
9122 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
9124 /* and give them to the extra ring */
9125 pring = &psli->ring[psli->extra_ring];
9127 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
9128 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
9129 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
9130 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
9132 /* Setup default profile for this ring */
9133 pring->iotag_max = 4096;
9134 pring->num_mask = 1;
9135 pring->prt[0].profile = 0; /* Mask 0 */
9136 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
9137 pring->prt[0].type = phba->cfg_multi_ring_type;
9138 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
9142 /* lpfc_sli_abts_err_handler - handle a failed ABTS request from an SLI3 port.
9143 * @phba: Pointer to HBA context object.
9144 * @iocbq: Pointer to iocb object.
9146 * The async_event handler calls this routine when it receives
9147 * an ASYNC_STATUS_CN event from the port. The port generates
9148 * this event when an Abort Sequence request to an rport fails
9149 * twice in succession. The abort could be originated by the
9150 * driver or by the port. The ABTS could have been for an ELS
9151 * or FCP IO. The port only generates this event when an ABTS
9152 * fails to complete after one retry.
9155 lpfc_sli_abts_err_handler(struct lpfc_hba *phba,
9156 struct lpfc_iocbq *iocbq)
9158 struct lpfc_nodelist *ndlp = NULL;
9159 uint16_t rpi = 0, vpi = 0;
9160 struct lpfc_vport *vport = NULL;
9162 /* The rpi in the ulpContext is vport-sensitive. */
9163 vpi = iocbq->iocb.un.asyncstat.sub_ctxt_tag;
9164 rpi = iocbq->iocb.ulpContext;
9166 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9167 "3092 Port generated ABTS async event "
9168 "on vpi %d rpi %d status 0x%x\n",
9169 vpi, rpi, iocbq->iocb.ulpStatus);
9171 vport = lpfc_find_vport_by_vpid(phba, vpi);
9174 ndlp = lpfc_findnode_rpi(vport, rpi);
9175 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
9178 if (iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT)
9179 lpfc_sli_abts_recover_port(vport, ndlp);
9183 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9184 "3095 Event Context not found, no "
9185 "action on vpi %d rpi %d status 0x%x, reason 0x%x\n",
9186 iocbq->iocb.ulpContext, iocbq->iocb.ulpStatus,
9190 /* lpfc_sli4_abts_err_handler - handle a failed ABTS request from an SLI4 port.
9191 * @phba: pointer to HBA context object.
9192 * @ndlp: nodelist pointer for the impacted rport.
9193 * @axri: pointer to the wcqe containing the failed exchange.
9195 * The driver calls this routine when it receives an ABORT_XRI_FCP CQE from the
9196 * port. The port generates this event when an abort exchange request to an
9197 * rport fails twice in succession with no reply. The abort could be originated
9198 * by the driver or by the port. The ABTS could have been for an ELS or FCP IO.
9201 lpfc_sli4_abts_err_handler(struct lpfc_hba *phba,
9202 struct lpfc_nodelist *ndlp,
9203 struct sli4_wcqe_xri_aborted *axri)
9205 struct lpfc_vport *vport;
9206 uint32_t ext_status = 0;
9208 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
9209 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9210 "3115 Node Context not found, driver "
9211 "ignoring abts err event\n");
9215 vport = ndlp->vport;
9216 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9217 "3116 Port generated FCP XRI ABORT event on "
9218 "vpi %d rpi %d xri x%x status 0x%x parameter x%x\n",
9219 ndlp->vport->vpi, phba->sli4_hba.rpi_ids[ndlp->nlp_rpi],
9220 bf_get(lpfc_wcqe_xa_xri, axri),
9221 bf_get(lpfc_wcqe_xa_status, axri),
9225 * Catch the ABTS protocol failure case. Older OCe FW releases returned
9226 * LOCAL_REJECT and 0 for a failed ABTS exchange and later OCe and
9227 * LPe FW releases returned LOCAL_REJECT and SEQUENCE_TIMEOUT.
9229 ext_status = axri->parameter & IOERR_PARAM_MASK;
9230 if ((bf_get(lpfc_wcqe_xa_status, axri) == IOSTAT_LOCAL_REJECT) &&
9231 ((ext_status == IOERR_SEQUENCE_TIMEOUT) || (ext_status == 0)))
9232 lpfc_sli_abts_recover_port(vport, ndlp);
9236 * lpfc_sli_async_event_handler - ASYNC iocb handler function
9237 * @phba: Pointer to HBA context object.
9238 * @pring: Pointer to driver SLI ring object.
9239 * @iocbq: Pointer to iocb object.
9241 * This function is called by the slow ring event handler
9242 * function when there is an ASYNC event iocb in the ring.
9243 * This function is called with no lock held.
9244 * Currently this function handles only temperature related
9245 * ASYNC events. The function decodes the temperature sensor
9246 * event message and posts events for the management applications.
9249 lpfc_sli_async_event_handler(struct lpfc_hba * phba,
9250 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
9254 struct temp_event temp_event_data;
9255 struct Scsi_Host *shost;
9258 icmd = &iocbq->iocb;
9259 evt_code = icmd->un.asyncstat.evt_code;
9262 case ASYNC_TEMP_WARN:
9263 case ASYNC_TEMP_SAFE:
9264 temp_event_data.data = (uint32_t) icmd->ulpContext;
9265 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
9266 if (evt_code == ASYNC_TEMP_WARN) {
9267 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
9268 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
9269 "0347 Adapter is very hot, please take "
9270 "corrective action. temperature : %d Celsius\n",
9271 (uint32_t) icmd->ulpContext);
9273 temp_event_data.event_code = LPFC_NORMAL_TEMP;
9274 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
9275 "0340 Adapter temperature is OK now. "
9276 "temperature : %d Celsius\n",
9277 (uint32_t) icmd->ulpContext);
9280 /* Send temperature change event to applications */
9281 shost = lpfc_shost_from_vport(phba->pport);
9282 fc_host_post_vendor_event(shost, fc_get_event_number(),
9283 sizeof(temp_event_data), (char *) &temp_event_data,
9286 case ASYNC_STATUS_CN:
9287 lpfc_sli_abts_err_handler(phba, iocbq);
9290 iocb_w = (uint32_t *) icmd;
9291 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9292 "0346 Ring %d handler: unexpected ASYNC_STATUS"
9294 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
9295 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
9296 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
9297 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
9298 pring->ringno, icmd->un.asyncstat.evt_code,
9299 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
9300 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
9301 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
9302 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
9310 * lpfc_sli_setup - SLI ring setup function
9311 * @phba: Pointer to HBA context object.
9313 * lpfc_sli_setup sets up rings of the SLI interface with
9314 * number of iocbs per ring and iotags. This function is
9315 * called while driver attach to the HBA and before the
9316 * interrupts are enabled. So there is no need for locking.
9318 * This function always returns 0.
9321 lpfc_sli_setup(struct lpfc_hba *phba)
9323 int i, totiocbsize = 0;
9324 struct lpfc_sli *psli = &phba->sli;
9325 struct lpfc_sli_ring *pring;
9327 psli->num_rings = MAX_SLI3_CONFIGURED_RINGS;
9328 if (phba->sli_rev == LPFC_SLI_REV4)
9329 psli->num_rings += phba->cfg_fcp_io_channel;
9331 psli->fcp_ring = LPFC_FCP_RING;
9332 psli->next_ring = LPFC_FCP_NEXT_RING;
9333 psli->extra_ring = LPFC_EXTRA_RING;
9335 psli->iocbq_lookup = NULL;
9336 psli->iocbq_lookup_len = 0;
9337 psli->last_iotag = 0;
9339 for (i = 0; i < psli->num_rings; i++) {
9340 pring = &psli->ring[i];
9342 case LPFC_FCP_RING: /* ring 0 - FCP */
9343 /* numCiocb and numRiocb are used in config_port */
9344 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
9345 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
9346 pring->sli.sli3.numCiocb +=
9347 SLI2_IOCB_CMD_R1XTRA_ENTRIES;
9348 pring->sli.sli3.numRiocb +=
9349 SLI2_IOCB_RSP_R1XTRA_ENTRIES;
9350 pring->sli.sli3.numCiocb +=
9351 SLI2_IOCB_CMD_R3XTRA_ENTRIES;
9352 pring->sli.sli3.numRiocb +=
9353 SLI2_IOCB_RSP_R3XTRA_ENTRIES;
9354 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
9355 SLI3_IOCB_CMD_SIZE :
9357 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
9358 SLI3_IOCB_RSP_SIZE :
9360 pring->iotag_ctr = 0;
9362 (phba->cfg_hba_queue_depth * 2);
9363 pring->fast_iotag = pring->iotag_max;
9364 pring->num_mask = 0;
9366 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
9367 /* numCiocb and numRiocb are used in config_port */
9368 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
9369 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
9370 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
9371 SLI3_IOCB_CMD_SIZE :
9373 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
9374 SLI3_IOCB_RSP_SIZE :
9376 pring->iotag_max = phba->cfg_hba_queue_depth;
9377 pring->num_mask = 0;
9379 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
9380 /* numCiocb and numRiocb are used in config_port */
9381 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
9382 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
9383 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
9384 SLI3_IOCB_CMD_SIZE :
9386 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
9387 SLI3_IOCB_RSP_SIZE :
9389 pring->fast_iotag = 0;
9390 pring->iotag_ctr = 0;
9391 pring->iotag_max = 4096;
9392 pring->lpfc_sli_rcv_async_status =
9393 lpfc_sli_async_event_handler;
9394 pring->num_mask = LPFC_MAX_RING_MASK;
9395 pring->prt[0].profile = 0; /* Mask 0 */
9396 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
9397 pring->prt[0].type = FC_TYPE_ELS;
9398 pring->prt[0].lpfc_sli_rcv_unsol_event =
9399 lpfc_els_unsol_event;
9400 pring->prt[1].profile = 0; /* Mask 1 */
9401 pring->prt[1].rctl = FC_RCTL_ELS_REP;
9402 pring->prt[1].type = FC_TYPE_ELS;
9403 pring->prt[1].lpfc_sli_rcv_unsol_event =
9404 lpfc_els_unsol_event;
9405 pring->prt[2].profile = 0; /* Mask 2 */
9406 /* NameServer Inquiry */
9407 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
9409 pring->prt[2].type = FC_TYPE_CT;
9410 pring->prt[2].lpfc_sli_rcv_unsol_event =
9411 lpfc_ct_unsol_event;
9412 pring->prt[3].profile = 0; /* Mask 3 */
9413 /* NameServer response */
9414 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
9416 pring->prt[3].type = FC_TYPE_CT;
9417 pring->prt[3].lpfc_sli_rcv_unsol_event =
9418 lpfc_ct_unsol_event;
9421 totiocbsize += (pring->sli.sli3.numCiocb *
9422 pring->sli.sli3.sizeCiocb) +
9423 (pring->sli.sli3.numRiocb * pring->sli.sli3.sizeRiocb);
9425 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
9426 /* Too many cmd / rsp ring entries in SLI2 SLIM */
9427 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
9428 "SLI2 SLIM Data: x%x x%lx\n",
9429 phba->brd_no, totiocbsize,
9430 (unsigned long) MAX_SLIM_IOCB_SIZE);
9432 if (phba->cfg_multi_ring_support == 2)
9433 lpfc_extra_ring_setup(phba);
9439 * lpfc_sli_queue_setup - Queue initialization function
9440 * @phba: Pointer to HBA context object.
9442 * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each
9443 * ring. This function also initializes ring indices of each ring.
9444 * This function is called during the initialization of the SLI
9445 * interface of an HBA.
9446 * This function is called with no lock held and always returns
9450 lpfc_sli_queue_setup(struct lpfc_hba *phba)
9452 struct lpfc_sli *psli;
9453 struct lpfc_sli_ring *pring;
9457 spin_lock_irq(&phba->hbalock);
9458 INIT_LIST_HEAD(&psli->mboxq);
9459 INIT_LIST_HEAD(&psli->mboxq_cmpl);
9460 /* Initialize list headers for txq and txcmplq as double linked lists */
9461 for (i = 0; i < psli->num_rings; i++) {
9462 pring = &psli->ring[i];
9464 pring->sli.sli3.next_cmdidx = 0;
9465 pring->sli.sli3.local_getidx = 0;
9466 pring->sli.sli3.cmdidx = 0;
9468 INIT_LIST_HEAD(&pring->txq);
9469 INIT_LIST_HEAD(&pring->txcmplq);
9470 INIT_LIST_HEAD(&pring->iocb_continueq);
9471 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
9472 INIT_LIST_HEAD(&pring->postbufq);
9473 spin_lock_init(&pring->ring_lock);
9475 spin_unlock_irq(&phba->hbalock);
9480 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
9481 * @phba: Pointer to HBA context object.
9483 * This routine flushes the mailbox command subsystem. It will unconditionally
9484 * flush all the mailbox commands in the three possible stages in the mailbox
9485 * command sub-system: pending mailbox command queue; the outstanding mailbox
9486 * command; and completed mailbox command queue. It is caller's responsibility
9487 * to make sure that the driver is in the proper state to flush the mailbox
9488 * command sub-system. Namely, the posting of mailbox commands into the
9489 * pending mailbox command queue from the various clients must be stopped;
9490 * either the HBA is in a state that it will never works on the outstanding
9491 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
9492 * mailbox command has been completed.
9495 lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
9497 LIST_HEAD(completions);
9498 struct lpfc_sli *psli = &phba->sli;
9500 unsigned long iflag;
9502 /* Flush all the mailbox commands in the mbox system */
9503 spin_lock_irqsave(&phba->hbalock, iflag);
9504 /* The pending mailbox command queue */
9505 list_splice_init(&phba->sli.mboxq, &completions);
9506 /* The outstanding active mailbox command */
9507 if (psli->mbox_active) {
9508 list_add_tail(&psli->mbox_active->list, &completions);
9509 psli->mbox_active = NULL;
9510 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9512 /* The completed mailbox command queue */
9513 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
9514 spin_unlock_irqrestore(&phba->hbalock, iflag);
9516 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
9517 while (!list_empty(&completions)) {
9518 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
9519 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
9521 pmb->mbox_cmpl(phba, pmb);
9526 * lpfc_sli_host_down - Vport cleanup function
9527 * @vport: Pointer to virtual port object.
9529 * lpfc_sli_host_down is called to clean up the resources
9530 * associated with a vport before destroying virtual
9531 * port data structures.
9532 * This function does following operations:
9533 * - Free discovery resources associated with this virtual
9535 * - Free iocbs associated with this virtual port in
9537 * - Send abort for all iocb commands associated with this
9540 * This function is called with no lock held and always returns 1.
9543 lpfc_sli_host_down(struct lpfc_vport *vport)
9545 LIST_HEAD(completions);
9546 struct lpfc_hba *phba = vport->phba;
9547 struct lpfc_sli *psli = &phba->sli;
9548 struct lpfc_sli_ring *pring;
9549 struct lpfc_iocbq *iocb, *next_iocb;
9551 unsigned long flags = 0;
9552 uint16_t prev_pring_flag;
9554 lpfc_cleanup_discovery_resources(vport);
9556 spin_lock_irqsave(&phba->hbalock, flags);
9557 for (i = 0; i < psli->num_rings; i++) {
9558 pring = &psli->ring[i];
9559 prev_pring_flag = pring->flag;
9560 /* Only slow rings */
9561 if (pring->ringno == LPFC_ELS_RING) {
9562 pring->flag |= LPFC_DEFERRED_RING_EVENT;
9563 /* Set the lpfc data pending flag */
9564 set_bit(LPFC_DATA_READY, &phba->data_flags);
9567 * Error everything on the txq since these iocbs have not been
9568 * given to the FW yet.
9570 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
9571 if (iocb->vport != vport)
9573 list_move_tail(&iocb->list, &completions);
9576 /* Next issue ABTS for everything on the txcmplq */
9577 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq,
9579 if (iocb->vport != vport)
9581 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
9584 pring->flag = prev_pring_flag;
9587 spin_unlock_irqrestore(&phba->hbalock, flags);
9589 /* Cancel all the IOCBs from the completions list */
9590 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9596 * lpfc_sli_hba_down - Resource cleanup function for the HBA
9597 * @phba: Pointer to HBA context object.
9599 * This function cleans up all iocb, buffers, mailbox commands
9600 * while shutting down the HBA. This function is called with no
9601 * lock held and always returns 1.
9602 * This function does the following to cleanup driver resources:
9603 * - Free discovery resources for each virtual port
9604 * - Cleanup any pending fabric iocbs
9605 * - Iterate through the iocb txq and free each entry
9607 * - Free up any buffer posted to the HBA
9608 * - Free mailbox commands in the mailbox queue.
9611 lpfc_sli_hba_down(struct lpfc_hba *phba)
9613 LIST_HEAD(completions);
9614 struct lpfc_sli *psli = &phba->sli;
9615 struct lpfc_sli_ring *pring;
9616 struct lpfc_dmabuf *buf_ptr;
9617 unsigned long flags = 0;
9620 /* Shutdown the mailbox command sub-system */
9621 lpfc_sli_mbox_sys_shutdown(phba, LPFC_MBX_WAIT);
9623 lpfc_hba_down_prep(phba);
9625 lpfc_fabric_abort_hba(phba);
9627 spin_lock_irqsave(&phba->hbalock, flags);
9628 for (i = 0; i < psli->num_rings; i++) {
9629 pring = &psli->ring[i];
9630 /* Only slow rings */
9631 if (pring->ringno == LPFC_ELS_RING) {
9632 pring->flag |= LPFC_DEFERRED_RING_EVENT;
9633 /* Set the lpfc data pending flag */
9634 set_bit(LPFC_DATA_READY, &phba->data_flags);
9638 * Error everything on the txq since these iocbs have not been
9639 * given to the FW yet.
9641 list_splice_init(&pring->txq, &completions);
9643 spin_unlock_irqrestore(&phba->hbalock, flags);
9645 /* Cancel all the IOCBs from the completions list */
9646 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9649 spin_lock_irqsave(&phba->hbalock, flags);
9650 list_splice_init(&phba->elsbuf, &completions);
9651 phba->elsbuf_cnt = 0;
9652 phba->elsbuf_prev_cnt = 0;
9653 spin_unlock_irqrestore(&phba->hbalock, flags);
9655 while (!list_empty(&completions)) {
9656 list_remove_head(&completions, buf_ptr,
9657 struct lpfc_dmabuf, list);
9658 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
9662 /* Return any active mbox cmds */
9663 del_timer_sync(&psli->mbox_tmo);
9665 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
9666 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
9667 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
9673 * lpfc_sli_pcimem_bcopy - SLI memory copy function
9674 * @srcp: Source memory pointer.
9675 * @destp: Destination memory pointer.
9676 * @cnt: Number of words required to be copied.
9678 * This function is used for copying data between driver memory
9679 * and the SLI memory. This function also changes the endianness
9680 * of each word if native endianness is different from SLI
9681 * endianness. This function can be called with or without
9685 lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
9687 uint32_t *src = srcp;
9688 uint32_t *dest = destp;
9692 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
9694 ldata = le32_to_cpu(ldata);
9703 * lpfc_sli_bemem_bcopy - SLI memory copy function
9704 * @srcp: Source memory pointer.
9705 * @destp: Destination memory pointer.
9706 * @cnt: Number of words required to be copied.
9708 * This function is used for copying data between a data structure
9709 * with big endian representation to local endianness.
9710 * This function can be called with or without lock.
9713 lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
9715 uint32_t *src = srcp;
9716 uint32_t *dest = destp;
9720 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
9722 ldata = be32_to_cpu(ldata);
9730 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
9731 * @phba: Pointer to HBA context object.
9732 * @pring: Pointer to driver SLI ring object.
9733 * @mp: Pointer to driver buffer object.
9735 * This function is called with no lock held.
9736 * It always return zero after adding the buffer to the postbufq
9740 lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9741 struct lpfc_dmabuf *mp)
9743 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
9745 spin_lock_irq(&phba->hbalock);
9746 list_add_tail(&mp->list, &pring->postbufq);
9747 pring->postbufq_cnt++;
9748 spin_unlock_irq(&phba->hbalock);
9753 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
9754 * @phba: Pointer to HBA context object.
9756 * When HBQ is enabled, buffers are searched based on tags. This function
9757 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
9758 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
9759 * does not conflict with tags of buffer posted for unsolicited events.
9760 * The function returns the allocated tag. The function is called with
9764 lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
9766 spin_lock_irq(&phba->hbalock);
9767 phba->buffer_tag_count++;
9769 * Always set the QUE_BUFTAG_BIT to distiguish between
9770 * a tag assigned by HBQ.
9772 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
9773 spin_unlock_irq(&phba->hbalock);
9774 return phba->buffer_tag_count;
9778 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
9779 * @phba: Pointer to HBA context object.
9780 * @pring: Pointer to driver SLI ring object.
9783 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
9784 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
9785 * iocb is posted to the response ring with the tag of the buffer.
9786 * This function searches the pring->postbufq list using the tag
9787 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
9788 * iocb. If the buffer is found then lpfc_dmabuf object of the
9789 * buffer is returned to the caller else NULL is returned.
9790 * This function is called with no lock held.
9792 struct lpfc_dmabuf *
9793 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9796 struct lpfc_dmabuf *mp, *next_mp;
9797 struct list_head *slp = &pring->postbufq;
9799 /* Search postbufq, from the beginning, looking for a match on tag */
9800 spin_lock_irq(&phba->hbalock);
9801 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
9802 if (mp->buffer_tag == tag) {
9803 list_del_init(&mp->list);
9804 pring->postbufq_cnt--;
9805 spin_unlock_irq(&phba->hbalock);
9810 spin_unlock_irq(&phba->hbalock);
9811 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9812 "0402 Cannot find virtual addr for buffer tag on "
9813 "ring %d Data x%lx x%p x%p x%x\n",
9814 pring->ringno, (unsigned long) tag,
9815 slp->next, slp->prev, pring->postbufq_cnt);
9821 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
9822 * @phba: Pointer to HBA context object.
9823 * @pring: Pointer to driver SLI ring object.
9824 * @phys: DMA address of the buffer.
9826 * This function searches the buffer list using the dma_address
9827 * of unsolicited event to find the driver's lpfc_dmabuf object
9828 * corresponding to the dma_address. The function returns the
9829 * lpfc_dmabuf object if a buffer is found else it returns NULL.
9830 * This function is called by the ct and els unsolicited event
9831 * handlers to get the buffer associated with the unsolicited
9834 * This function is called with no lock held.
9836 struct lpfc_dmabuf *
9837 lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9840 struct lpfc_dmabuf *mp, *next_mp;
9841 struct list_head *slp = &pring->postbufq;
9843 /* Search postbufq, from the beginning, looking for a match on phys */
9844 spin_lock_irq(&phba->hbalock);
9845 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
9846 if (mp->phys == phys) {
9847 list_del_init(&mp->list);
9848 pring->postbufq_cnt--;
9849 spin_unlock_irq(&phba->hbalock);
9854 spin_unlock_irq(&phba->hbalock);
9855 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9856 "0410 Cannot find virtual addr for mapped buf on "
9857 "ring %d Data x%llx x%p x%p x%x\n",
9858 pring->ringno, (unsigned long long)phys,
9859 slp->next, slp->prev, pring->postbufq_cnt);
9864 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
9865 * @phba: Pointer to HBA context object.
9866 * @cmdiocb: Pointer to driver command iocb object.
9867 * @rspiocb: Pointer to driver response iocb object.
9869 * This function is the completion handler for the abort iocbs for
9870 * ELS commands. This function is called from the ELS ring event
9871 * handler with no lock held. This function frees memory resources
9872 * associated with the abort iocb.
9875 lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9876 struct lpfc_iocbq *rspiocb)
9878 IOCB_t *irsp = &rspiocb->iocb;
9879 uint16_t abort_iotag, abort_context;
9880 struct lpfc_iocbq *abort_iocb = NULL;
9882 if (irsp->ulpStatus) {
9885 * Assume that the port already completed and returned, or
9886 * will return the iocb. Just Log the message.
9888 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
9889 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
9891 spin_lock_irq(&phba->hbalock);
9892 if (phba->sli_rev < LPFC_SLI_REV4) {
9893 if (abort_iotag != 0 &&
9894 abort_iotag <= phba->sli.last_iotag)
9896 phba->sli.iocbq_lookup[abort_iotag];
9898 /* For sli4 the abort_tag is the XRI,
9899 * so the abort routine puts the iotag of the iocb
9900 * being aborted in the context field of the abort
9903 abort_iocb = phba->sli.iocbq_lookup[abort_context];
9905 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI,
9906 "0327 Cannot abort els iocb %p "
9907 "with tag %x context %x, abort status %x, "
9909 abort_iocb, abort_iotag, abort_context,
9910 irsp->ulpStatus, irsp->un.ulpWord[4]);
9912 spin_unlock_irq(&phba->hbalock);
9914 lpfc_sli_release_iocbq(phba, cmdiocb);
9919 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
9920 * @phba: Pointer to HBA context object.
9921 * @cmdiocb: Pointer to driver command iocb object.
9922 * @rspiocb: Pointer to driver response iocb object.
9924 * The function is called from SLI ring event handler with no
9925 * lock held. This function is the completion handler for ELS commands
9926 * which are aborted. The function frees memory resources used for
9927 * the aborted ELS commands.
9930 lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9931 struct lpfc_iocbq *rspiocb)
9933 IOCB_t *irsp = &rspiocb->iocb;
9935 /* ELS cmd tag <ulpIoTag> completes */
9936 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
9937 "0139 Ignoring ELS cmd tag x%x completion Data: "
9939 irsp->ulpIoTag, irsp->ulpStatus,
9940 irsp->un.ulpWord[4], irsp->ulpTimeout);
9941 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
9942 lpfc_ct_free_iocb(phba, cmdiocb);
9944 lpfc_els_free_iocb(phba, cmdiocb);
9949 * lpfc_sli_abort_iotag_issue - Issue abort for a command iocb
9950 * @phba: Pointer to HBA context object.
9951 * @pring: Pointer to driver SLI ring object.
9952 * @cmdiocb: Pointer to driver command iocb object.
9954 * This function issues an abort iocb for the provided command iocb down to
9955 * the port. Other than the case the outstanding command iocb is an abort
9956 * request, this function issues abort out unconditionally. This function is
9957 * called with hbalock held. The function returns 0 when it fails due to
9958 * memory allocation failure or when the command iocb is an abort request.
9961 lpfc_sli_abort_iotag_issue(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9962 struct lpfc_iocbq *cmdiocb)
9964 struct lpfc_vport *vport = cmdiocb->vport;
9965 struct lpfc_iocbq *abtsiocbp;
9966 IOCB_t *icmd = NULL;
9967 IOCB_t *iabt = NULL;
9970 unsigned long iflags;
9972 lockdep_assert_held(&phba->hbalock);
9975 * There are certain command types we don't want to abort. And we
9976 * don't want to abort commands that are already in the process of
9979 icmd = &cmdiocb->iocb;
9980 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
9981 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
9982 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
9985 /* issue ABTS for this IOCB based on iotag */
9986 abtsiocbp = __lpfc_sli_get_iocbq(phba);
9987 if (abtsiocbp == NULL)
9990 /* This signals the response to set the correct status
9991 * before calling the completion handler
9993 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
9995 iabt = &abtsiocbp->iocb;
9996 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
9997 iabt->un.acxri.abortContextTag = icmd->ulpContext;
9998 if (phba->sli_rev == LPFC_SLI_REV4) {
9999 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
10000 iabt->un.acxri.abortContextTag = cmdiocb->iotag;
10003 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
10005 iabt->ulpClass = icmd->ulpClass;
10007 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
10008 abtsiocbp->fcp_wqidx = cmdiocb->fcp_wqidx;
10009 if (cmdiocb->iocb_flag & LPFC_IO_FCP)
10010 abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
10011 if (cmdiocb->iocb_flag & LPFC_IO_FOF)
10012 abtsiocbp->iocb_flag |= LPFC_IO_FOF;
10014 if (phba->link_state >= LPFC_LINK_UP)
10015 iabt->ulpCommand = CMD_ABORT_XRI_CN;
10017 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
10019 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
10020 abtsiocbp->vport = vport;
10022 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
10023 "0339 Abort xri x%x, original iotag x%x, "
10024 "abort cmd iotag x%x\n",
10025 iabt->un.acxri.abortIoTag,
10026 iabt->un.acxri.abortContextTag,
10029 if (phba->sli_rev == LPFC_SLI_REV4) {
10031 lpfc_sli_calc_ring(phba, pring->ringno, abtsiocbp);
10032 if (unlikely(ring_number == LPFC_HBA_ERROR))
10034 pring = &phba->sli.ring[ring_number];
10035 /* Note: both hbalock and ring_lock need to be set here */
10036 spin_lock_irqsave(&pring->ring_lock, iflags);
10037 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
10039 spin_unlock_irqrestore(&pring->ring_lock, iflags);
10041 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
10046 __lpfc_sli_release_iocbq(phba, abtsiocbp);
10049 * Caller to this routine should check for IOCB_ERROR
10050 * and handle it properly. This routine no longer removes
10051 * iocb off txcmplq and call compl in case of IOCB_ERROR.
10057 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
10058 * @phba: Pointer to HBA context object.
10059 * @pring: Pointer to driver SLI ring object.
10060 * @cmdiocb: Pointer to driver command iocb object.
10062 * This function issues an abort iocb for the provided command iocb. In case
10063 * of unloading, the abort iocb will not be issued to commands on the ELS
10064 * ring. Instead, the callback function shall be changed to those commands
10065 * so that nothing happens when them finishes. This function is called with
10066 * hbalock held. The function returns 0 when the command iocb is an abort
10070 lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10071 struct lpfc_iocbq *cmdiocb)
10073 struct lpfc_vport *vport = cmdiocb->vport;
10074 int retval = IOCB_ERROR;
10075 IOCB_t *icmd = NULL;
10077 lockdep_assert_held(&phba->hbalock);
10080 * There are certain command types we don't want to abort. And we
10081 * don't want to abort commands that are already in the process of
10084 icmd = &cmdiocb->iocb;
10085 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
10086 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
10087 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
10091 * If we're unloading, don't abort iocb on the ELS ring, but change
10092 * the callback so that nothing happens when it finishes.
10094 if ((vport->load_flag & FC_UNLOADING) &&
10095 (pring->ringno == LPFC_ELS_RING)) {
10096 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
10097 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
10099 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
10100 goto abort_iotag_exit;
10103 /* Now, we try to issue the abort to the cmdiocb out */
10104 retval = lpfc_sli_abort_iotag_issue(phba, pring, cmdiocb);
10108 * Caller to this routine should check for IOCB_ERROR
10109 * and handle it properly. This routine no longer removes
10110 * iocb off txcmplq and call compl in case of IOCB_ERROR.
10116 * lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
10117 * @phba: pointer to lpfc HBA data structure.
10119 * This routine will abort all pending and outstanding iocbs to an HBA.
10122 lpfc_sli_hba_iocb_abort(struct lpfc_hba *phba)
10124 struct lpfc_sli *psli = &phba->sli;
10125 struct lpfc_sli_ring *pring;
10128 for (i = 0; i < psli->num_rings; i++) {
10129 pring = &psli->ring[i];
10130 lpfc_sli_abort_iocb_ring(phba, pring);
10135 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
10136 * @iocbq: Pointer to driver iocb object.
10137 * @vport: Pointer to driver virtual port object.
10138 * @tgt_id: SCSI ID of the target.
10139 * @lun_id: LUN ID of the scsi device.
10140 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
10142 * This function acts as an iocb filter for functions which abort or count
10143 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
10144 * 0 if the filtering criteria is met for the given iocb and will return
10145 * 1 if the filtering criteria is not met.
10146 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
10147 * given iocb is for the SCSI device specified by vport, tgt_id and
10148 * lun_id parameter.
10149 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
10150 * given iocb is for the SCSI target specified by vport and tgt_id
10152 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
10153 * given iocb is for the SCSI host associated with the given vport.
10154 * This function is called with no locks held.
10157 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
10158 uint16_t tgt_id, uint64_t lun_id,
10159 lpfc_ctx_cmd ctx_cmd)
10161 struct lpfc_scsi_buf *lpfc_cmd;
10164 if (!(iocbq->iocb_flag & LPFC_IO_FCP))
10167 if (iocbq->vport != vport)
10170 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
10172 if (lpfc_cmd->pCmd == NULL)
10177 if ((lpfc_cmd->rdata->pnode) &&
10178 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
10179 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
10183 if ((lpfc_cmd->rdata->pnode) &&
10184 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
10187 case LPFC_CTX_HOST:
10191 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
10192 __func__, ctx_cmd);
10200 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
10201 * @vport: Pointer to virtual port.
10202 * @tgt_id: SCSI ID of the target.
10203 * @lun_id: LUN ID of the scsi device.
10204 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
10206 * This function returns number of FCP commands pending for the vport.
10207 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
10208 * commands pending on the vport associated with SCSI device specified
10209 * by tgt_id and lun_id parameters.
10210 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
10211 * commands pending on the vport associated with SCSI target specified
10212 * by tgt_id parameter.
10213 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
10214 * commands pending on the vport.
10215 * This function returns the number of iocbs which satisfy the filter.
10216 * This function is called without any lock held.
10219 lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
10220 lpfc_ctx_cmd ctx_cmd)
10222 struct lpfc_hba *phba = vport->phba;
10223 struct lpfc_iocbq *iocbq;
10226 spin_lock_irq(&phba->hbalock);
10227 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
10228 iocbq = phba->sli.iocbq_lookup[i];
10230 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
10234 spin_unlock_irq(&phba->hbalock);
10240 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
10241 * @phba: Pointer to HBA context object
10242 * @cmdiocb: Pointer to command iocb object.
10243 * @rspiocb: Pointer to response iocb object.
10245 * This function is called when an aborted FCP iocb completes. This
10246 * function is called by the ring event handler with no lock held.
10247 * This function frees the iocb.
10250 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
10251 struct lpfc_iocbq *rspiocb)
10253 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10254 "3096 ABORT_XRI_CN completing on rpi x%x "
10255 "original iotag x%x, abort cmd iotag x%x "
10256 "status 0x%x, reason 0x%x\n",
10257 cmdiocb->iocb.un.acxri.abortContextTag,
10258 cmdiocb->iocb.un.acxri.abortIoTag,
10259 cmdiocb->iotag, rspiocb->iocb.ulpStatus,
10260 rspiocb->iocb.un.ulpWord[4]);
10261 lpfc_sli_release_iocbq(phba, cmdiocb);
10266 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
10267 * @vport: Pointer to virtual port.
10268 * @pring: Pointer to driver SLI ring object.
10269 * @tgt_id: SCSI ID of the target.
10270 * @lun_id: LUN ID of the scsi device.
10271 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
10273 * This function sends an abort command for every SCSI command
10274 * associated with the given virtual port pending on the ring
10275 * filtered by lpfc_sli_validate_fcp_iocb function.
10276 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
10277 * FCP iocbs associated with lun specified by tgt_id and lun_id
10279 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
10280 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
10281 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
10282 * FCP iocbs associated with virtual port.
10283 * This function returns number of iocbs it failed to abort.
10284 * This function is called with no locks held.
10287 lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
10288 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
10290 struct lpfc_hba *phba = vport->phba;
10291 struct lpfc_iocbq *iocbq;
10292 struct lpfc_iocbq *abtsiocb;
10293 IOCB_t *cmd = NULL;
10294 int errcnt = 0, ret_val = 0;
10297 for (i = 1; i <= phba->sli.last_iotag; i++) {
10298 iocbq = phba->sli.iocbq_lookup[i];
10300 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
10305 * If the iocbq is already being aborted, don't take a second
10306 * action, but do count it.
10308 if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
10311 /* issue ABTS for this IOCB based on iotag */
10312 abtsiocb = lpfc_sli_get_iocbq(phba);
10313 if (abtsiocb == NULL) {
10318 /* indicate the IO is being aborted by the driver. */
10319 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
10321 cmd = &iocbq->iocb;
10322 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
10323 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
10324 if (phba->sli_rev == LPFC_SLI_REV4)
10325 abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
10327 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
10328 abtsiocb->iocb.ulpLe = 1;
10329 abtsiocb->iocb.ulpClass = cmd->ulpClass;
10330 abtsiocb->vport = vport;
10332 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
10333 abtsiocb->fcp_wqidx = iocbq->fcp_wqidx;
10334 if (iocbq->iocb_flag & LPFC_IO_FCP)
10335 abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
10336 if (iocbq->iocb_flag & LPFC_IO_FOF)
10337 abtsiocb->iocb_flag |= LPFC_IO_FOF;
10339 if (lpfc_is_link_up(phba))
10340 abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
10342 abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
10344 /* Setup callback routine and issue the command. */
10345 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
10346 ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
10348 if (ret_val == IOCB_ERROR) {
10349 lpfc_sli_release_iocbq(phba, abtsiocb);
10359 * lpfc_sli_abort_taskmgmt - issue abort for all commands on a host/target/LUN
10360 * @vport: Pointer to virtual port.
10361 * @pring: Pointer to driver SLI ring object.
10362 * @tgt_id: SCSI ID of the target.
10363 * @lun_id: LUN ID of the scsi device.
10364 * @taskmgmt_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
10366 * This function sends an abort command for every SCSI command
10367 * associated with the given virtual port pending on the ring
10368 * filtered by lpfc_sli_validate_fcp_iocb function.
10369 * When taskmgmt_cmd == LPFC_CTX_LUN, the function sends abort only to the
10370 * FCP iocbs associated with lun specified by tgt_id and lun_id
10372 * When taskmgmt_cmd == LPFC_CTX_TGT, the function sends abort only to the
10373 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
10374 * When taskmgmt_cmd == LPFC_CTX_HOST, the function sends abort to all
10375 * FCP iocbs associated with virtual port.
10376 * This function returns number of iocbs it aborted .
10377 * This function is called with no locks held right after a taskmgmt
10381 lpfc_sli_abort_taskmgmt(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
10382 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd cmd)
10384 struct lpfc_hba *phba = vport->phba;
10385 struct lpfc_scsi_buf *lpfc_cmd;
10386 struct lpfc_iocbq *abtsiocbq;
10387 struct lpfc_nodelist *ndlp;
10388 struct lpfc_iocbq *iocbq;
10390 int sum, i, ret_val;
10391 unsigned long iflags;
10392 struct lpfc_sli_ring *pring_s4;
10393 uint32_t ring_number;
10395 spin_lock_irq(&phba->hbalock);
10397 /* all I/Os are in process of being flushed */
10398 if (phba->hba_flag & HBA_FCP_IOQ_FLUSH) {
10399 spin_unlock_irq(&phba->hbalock);
10404 for (i = 1; i <= phba->sli.last_iotag; i++) {
10405 iocbq = phba->sli.iocbq_lookup[i];
10407 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
10412 * If the iocbq is already being aborted, don't take a second
10413 * action, but do count it.
10415 if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
10418 /* issue ABTS for this IOCB based on iotag */
10419 abtsiocbq = __lpfc_sli_get_iocbq(phba);
10420 if (abtsiocbq == NULL)
10423 icmd = &iocbq->iocb;
10424 abtsiocbq->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
10425 abtsiocbq->iocb.un.acxri.abortContextTag = icmd->ulpContext;
10426 if (phba->sli_rev == LPFC_SLI_REV4)
10427 abtsiocbq->iocb.un.acxri.abortIoTag =
10428 iocbq->sli4_xritag;
10430 abtsiocbq->iocb.un.acxri.abortIoTag = icmd->ulpIoTag;
10431 abtsiocbq->iocb.ulpLe = 1;
10432 abtsiocbq->iocb.ulpClass = icmd->ulpClass;
10433 abtsiocbq->vport = vport;
10435 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
10436 abtsiocbq->fcp_wqidx = iocbq->fcp_wqidx;
10437 if (iocbq->iocb_flag & LPFC_IO_FCP)
10438 abtsiocbq->iocb_flag |= LPFC_USE_FCPWQIDX;
10439 if (iocbq->iocb_flag & LPFC_IO_FOF)
10440 abtsiocbq->iocb_flag |= LPFC_IO_FOF;
10442 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
10443 ndlp = lpfc_cmd->rdata->pnode;
10445 if (lpfc_is_link_up(phba) &&
10446 (ndlp && ndlp->nlp_state == NLP_STE_MAPPED_NODE))
10447 abtsiocbq->iocb.ulpCommand = CMD_ABORT_XRI_CN;
10449 abtsiocbq->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
10451 /* Setup callback routine and issue the command. */
10452 abtsiocbq->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
10455 * Indicate the IO is being aborted by the driver and set
10456 * the caller's flag into the aborted IO.
10458 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
10460 if (phba->sli_rev == LPFC_SLI_REV4) {
10461 ring_number = MAX_SLI3_CONFIGURED_RINGS +
10463 pring_s4 = &phba->sli.ring[ring_number];
10464 /* Note: both hbalock and ring_lock must be set here */
10465 spin_lock_irqsave(&pring_s4->ring_lock, iflags);
10466 ret_val = __lpfc_sli_issue_iocb(phba, pring_s4->ringno,
10468 spin_unlock_irqrestore(&pring_s4->ring_lock, iflags);
10470 ret_val = __lpfc_sli_issue_iocb(phba, pring->ringno,
10475 if (ret_val == IOCB_ERROR)
10476 __lpfc_sli_release_iocbq(phba, abtsiocbq);
10480 spin_unlock_irq(&phba->hbalock);
10485 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
10486 * @phba: Pointer to HBA context object.
10487 * @cmdiocbq: Pointer to command iocb.
10488 * @rspiocbq: Pointer to response iocb.
10490 * This function is the completion handler for iocbs issued using
10491 * lpfc_sli_issue_iocb_wait function. This function is called by the
10492 * ring event handler function without any lock held. This function
10493 * can be called from both worker thread context and interrupt
10494 * context. This function also can be called from other thread which
10495 * cleans up the SLI layer objects.
10496 * This function copy the contents of the response iocb to the
10497 * response iocb memory object provided by the caller of
10498 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
10499 * sleeps for the iocb completion.
10502 lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
10503 struct lpfc_iocbq *cmdiocbq,
10504 struct lpfc_iocbq *rspiocbq)
10506 wait_queue_head_t *pdone_q;
10507 unsigned long iflags;
10508 struct lpfc_scsi_buf *lpfc_cmd;
10510 spin_lock_irqsave(&phba->hbalock, iflags);
10511 if (cmdiocbq->iocb_flag & LPFC_IO_WAKE_TMO) {
10514 * A time out has occurred for the iocb. If a time out
10515 * completion handler has been supplied, call it. Otherwise,
10516 * just free the iocbq.
10519 spin_unlock_irqrestore(&phba->hbalock, iflags);
10520 cmdiocbq->iocb_cmpl = cmdiocbq->wait_iocb_cmpl;
10521 cmdiocbq->wait_iocb_cmpl = NULL;
10522 if (cmdiocbq->iocb_cmpl)
10523 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, NULL);
10525 lpfc_sli_release_iocbq(phba, cmdiocbq);
10529 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
10530 if (cmdiocbq->context2 && rspiocbq)
10531 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
10532 &rspiocbq->iocb, sizeof(IOCB_t));
10534 /* Set the exchange busy flag for task management commands */
10535 if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) &&
10536 !(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) {
10537 lpfc_cmd = container_of(cmdiocbq, struct lpfc_scsi_buf,
10539 lpfc_cmd->exch_busy = rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY;
10542 pdone_q = cmdiocbq->context_un.wait_queue;
10545 spin_unlock_irqrestore(&phba->hbalock, iflags);
10550 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
10551 * @phba: Pointer to HBA context object..
10552 * @piocbq: Pointer to command iocb.
10553 * @flag: Flag to test.
10555 * This routine grabs the hbalock and then test the iocb_flag to
10556 * see if the passed in flag is set.
10558 * 1 if flag is set.
10559 * 0 if flag is not set.
10562 lpfc_chk_iocb_flg(struct lpfc_hba *phba,
10563 struct lpfc_iocbq *piocbq, uint32_t flag)
10565 unsigned long iflags;
10568 spin_lock_irqsave(&phba->hbalock, iflags);
10569 ret = piocbq->iocb_flag & flag;
10570 spin_unlock_irqrestore(&phba->hbalock, iflags);
10576 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
10577 * @phba: Pointer to HBA context object..
10578 * @pring: Pointer to sli ring.
10579 * @piocb: Pointer to command iocb.
10580 * @prspiocbq: Pointer to response iocb.
10581 * @timeout: Timeout in number of seconds.
10583 * This function issues the iocb to firmware and waits for the
10584 * iocb to complete. The iocb_cmpl field of the shall be used
10585 * to handle iocbs which time out. If the field is NULL, the
10586 * function shall free the iocbq structure. If more clean up is
10587 * needed, the caller is expected to provide a completion function
10588 * that will provide the needed clean up. If the iocb command is
10589 * not completed within timeout seconds, the function will either
10590 * free the iocbq structure (if iocb_cmpl == NULL) or execute the
10591 * completion function set in the iocb_cmpl field and then return
10592 * a status of IOCB_TIMEDOUT. The caller should not free the iocb
10593 * resources if this function returns IOCB_TIMEDOUT.
10594 * The function waits for the iocb completion using an
10595 * non-interruptible wait.
10596 * This function will sleep while waiting for iocb completion.
10597 * So, this function should not be called from any context which
10598 * does not allow sleeping. Due to the same reason, this function
10599 * cannot be called with interrupt disabled.
10600 * This function assumes that the iocb completions occur while
10601 * this function sleep. So, this function cannot be called from
10602 * the thread which process iocb completion for this ring.
10603 * This function clears the iocb_flag of the iocb object before
10604 * issuing the iocb and the iocb completion handler sets this
10605 * flag and wakes this thread when the iocb completes.
10606 * The contents of the response iocb will be copied to prspiocbq
10607 * by the completion handler when the command completes.
10608 * This function returns IOCB_SUCCESS when success.
10609 * This function is called with no lock held.
10612 lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
10613 uint32_t ring_number,
10614 struct lpfc_iocbq *piocb,
10615 struct lpfc_iocbq *prspiocbq,
10618 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
10619 long timeleft, timeout_req = 0;
10620 int retval = IOCB_SUCCESS;
10622 struct lpfc_iocbq *iocb;
10624 int txcmplq_cnt = 0;
10625 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
10626 unsigned long iflags;
10627 bool iocb_completed = true;
10630 * If the caller has provided a response iocbq buffer, then context2
10631 * is NULL or its an error.
10634 if (piocb->context2)
10636 piocb->context2 = prspiocbq;
10639 piocb->wait_iocb_cmpl = piocb->iocb_cmpl;
10640 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
10641 piocb->context_un.wait_queue = &done_q;
10642 piocb->iocb_flag &= ~(LPFC_IO_WAKE | LPFC_IO_WAKE_TMO);
10644 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
10645 if (lpfc_readl(phba->HCregaddr, &creg_val))
10647 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
10648 writel(creg_val, phba->HCregaddr);
10649 readl(phba->HCregaddr); /* flush */
10652 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb,
10653 SLI_IOCB_RET_IOCB);
10654 if (retval == IOCB_SUCCESS) {
10655 timeout_req = msecs_to_jiffies(timeout * 1000);
10656 timeleft = wait_event_timeout(done_q,
10657 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
10659 spin_lock_irqsave(&phba->hbalock, iflags);
10660 if (!(piocb->iocb_flag & LPFC_IO_WAKE)) {
10663 * IOCB timed out. Inform the wake iocb wait
10664 * completion function and set local status
10667 iocb_completed = false;
10668 piocb->iocb_flag |= LPFC_IO_WAKE_TMO;
10670 spin_unlock_irqrestore(&phba->hbalock, iflags);
10671 if (iocb_completed) {
10672 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10673 "0331 IOCB wake signaled\n");
10674 /* Note: we are not indicating if the IOCB has a success
10675 * status or not - that's for the caller to check.
10676 * IOCB_SUCCESS means just that the command was sent and
10677 * completed. Not that it completed successfully.
10679 } else if (timeleft == 0) {
10680 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10681 "0338 IOCB wait timeout error - no "
10682 "wake response Data x%x\n", timeout);
10683 retval = IOCB_TIMEDOUT;
10685 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10686 "0330 IOCB wake NOT set, "
10688 timeout, (timeleft / jiffies));
10689 retval = IOCB_TIMEDOUT;
10691 } else if (retval == IOCB_BUSY) {
10692 if (phba->cfg_log_verbose & LOG_SLI) {
10693 list_for_each_entry(iocb, &pring->txq, list) {
10696 list_for_each_entry(iocb, &pring->txcmplq, list) {
10699 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10700 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
10701 phba->iocb_cnt, txq_cnt, txcmplq_cnt);
10705 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10706 "0332 IOCB wait issue failed, Data x%x\n",
10708 retval = IOCB_ERROR;
10711 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
10712 if (lpfc_readl(phba->HCregaddr, &creg_val))
10714 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
10715 writel(creg_val, phba->HCregaddr);
10716 readl(phba->HCregaddr); /* flush */
10720 piocb->context2 = NULL;
10722 piocb->context_un.wait_queue = NULL;
10723 piocb->iocb_cmpl = NULL;
10728 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
10729 * @phba: Pointer to HBA context object.
10730 * @pmboxq: Pointer to driver mailbox object.
10731 * @timeout: Timeout in number of seconds.
10733 * This function issues the mailbox to firmware and waits for the
10734 * mailbox command to complete. If the mailbox command is not
10735 * completed within timeout seconds, it returns MBX_TIMEOUT.
10736 * The function waits for the mailbox completion using an
10737 * interruptible wait. If the thread is woken up due to a
10738 * signal, MBX_TIMEOUT error is returned to the caller. Caller
10739 * should not free the mailbox resources, if this function returns
10741 * This function will sleep while waiting for mailbox completion.
10742 * So, this function should not be called from any context which
10743 * does not allow sleeping. Due to the same reason, this function
10744 * cannot be called with interrupt disabled.
10745 * This function assumes that the mailbox completion occurs while
10746 * this function sleep. So, this function cannot be called from
10747 * the worker thread which processes mailbox completion.
10748 * This function is called in the context of HBA management
10750 * This function returns MBX_SUCCESS when successful.
10751 * This function is called with no lock held.
10754 lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
10757 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
10758 MAILBOX_t *mb = NULL;
10760 unsigned long flag;
10762 /* The caller might set context1 for extended buffer */
10763 if (pmboxq->context1)
10764 mb = (MAILBOX_t *)pmboxq->context1;
10766 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
10767 /* setup wake call as IOCB callback */
10768 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
10769 /* setup context field to pass wait_queue pointer to wake function */
10770 pmboxq->context1 = &done_q;
10772 /* now issue the command */
10773 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
10774 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
10775 wait_event_interruptible_timeout(done_q,
10776 pmboxq->mbox_flag & LPFC_MBX_WAKE,
10777 msecs_to_jiffies(timeout * 1000));
10779 spin_lock_irqsave(&phba->hbalock, flag);
10780 /* restore the possible extended buffer for free resource */
10781 pmboxq->context1 = (uint8_t *)mb;
10783 * if LPFC_MBX_WAKE flag is set the mailbox is completed
10784 * else do not free the resources.
10786 if (pmboxq->mbox_flag & LPFC_MBX_WAKE) {
10787 retval = MBX_SUCCESS;
10789 retval = MBX_TIMEOUT;
10790 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10792 spin_unlock_irqrestore(&phba->hbalock, flag);
10794 /* restore the possible extended buffer for free resource */
10795 pmboxq->context1 = (uint8_t *)mb;
10802 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
10803 * @phba: Pointer to HBA context.
10805 * This function is called to shutdown the driver's mailbox sub-system.
10806 * It first marks the mailbox sub-system is in a block state to prevent
10807 * the asynchronous mailbox command from issued off the pending mailbox
10808 * command queue. If the mailbox command sub-system shutdown is due to
10809 * HBA error conditions such as EEH or ERATT, this routine shall invoke
10810 * the mailbox sub-system flush routine to forcefully bring down the
10811 * mailbox sub-system. Otherwise, if it is due to normal condition (such
10812 * as with offline or HBA function reset), this routine will wait for the
10813 * outstanding mailbox command to complete before invoking the mailbox
10814 * sub-system flush routine to gracefully bring down mailbox sub-system.
10817 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba, int mbx_action)
10819 struct lpfc_sli *psli = &phba->sli;
10820 unsigned long timeout;
10822 if (mbx_action == LPFC_MBX_NO_WAIT) {
10823 /* delay 100ms for port state */
10825 lpfc_sli_mbox_sys_flush(phba);
10828 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
10830 spin_lock_irq(&phba->hbalock);
10831 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
10833 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
10834 /* Determine how long we might wait for the active mailbox
10835 * command to be gracefully completed by firmware.
10837 if (phba->sli.mbox_active)
10838 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
10839 phba->sli.mbox_active) *
10841 spin_unlock_irq(&phba->hbalock);
10843 while (phba->sli.mbox_active) {
10844 /* Check active mailbox complete status every 2ms */
10846 if (time_after(jiffies, timeout))
10847 /* Timeout, let the mailbox flush routine to
10848 * forcefully release active mailbox command
10853 spin_unlock_irq(&phba->hbalock);
10855 lpfc_sli_mbox_sys_flush(phba);
10859 * lpfc_sli_eratt_read - read sli-3 error attention events
10860 * @phba: Pointer to HBA context.
10862 * This function is called to read the SLI3 device error attention registers
10863 * for possible error attention events. The caller must hold the hostlock
10864 * with spin_lock_irq().
10866 * This function returns 1 when there is Error Attention in the Host Attention
10867 * Register and returns 0 otherwise.
10870 lpfc_sli_eratt_read(struct lpfc_hba *phba)
10874 /* Read chip Host Attention (HA) register */
10875 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10878 if (ha_copy & HA_ERATT) {
10879 /* Read host status register to retrieve error event */
10880 if (lpfc_sli_read_hs(phba))
10883 /* Check if there is a deferred error condition is active */
10884 if ((HS_FFER1 & phba->work_hs) &&
10885 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
10886 HS_FFER6 | HS_FFER7 | HS_FFER8) & phba->work_hs)) {
10887 phba->hba_flag |= DEFER_ERATT;
10888 /* Clear all interrupt enable conditions */
10889 writel(0, phba->HCregaddr);
10890 readl(phba->HCregaddr);
10893 /* Set the driver HA work bitmap */
10894 phba->work_ha |= HA_ERATT;
10895 /* Indicate polling handles this ERATT */
10896 phba->hba_flag |= HBA_ERATT_HANDLED;
10902 /* Set the driver HS work bitmap */
10903 phba->work_hs |= UNPLUG_ERR;
10904 /* Set the driver HA work bitmap */
10905 phba->work_ha |= HA_ERATT;
10906 /* Indicate polling handles this ERATT */
10907 phba->hba_flag |= HBA_ERATT_HANDLED;
10912 * lpfc_sli4_eratt_read - read sli-4 error attention events
10913 * @phba: Pointer to HBA context.
10915 * This function is called to read the SLI4 device error attention registers
10916 * for possible error attention events. The caller must hold the hostlock
10917 * with spin_lock_irq().
10919 * This function returns 1 when there is Error Attention in the Host Attention
10920 * Register and returns 0 otherwise.
10923 lpfc_sli4_eratt_read(struct lpfc_hba *phba)
10925 uint32_t uerr_sta_hi, uerr_sta_lo;
10926 uint32_t if_type, portsmphr;
10927 struct lpfc_register portstat_reg;
10930 * For now, use the SLI4 device internal unrecoverable error
10931 * registers for error attention. This can be changed later.
10933 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10935 case LPFC_SLI_INTF_IF_TYPE_0:
10936 if (lpfc_readl(phba->sli4_hba.u.if_type0.UERRLOregaddr,
10938 lpfc_readl(phba->sli4_hba.u.if_type0.UERRHIregaddr,
10940 phba->work_hs |= UNPLUG_ERR;
10941 phba->work_ha |= HA_ERATT;
10942 phba->hba_flag |= HBA_ERATT_HANDLED;
10945 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
10946 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
10947 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10948 "1423 HBA Unrecoverable error: "
10949 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
10950 "ue_mask_lo_reg=0x%x, "
10951 "ue_mask_hi_reg=0x%x\n",
10952 uerr_sta_lo, uerr_sta_hi,
10953 phba->sli4_hba.ue_mask_lo,
10954 phba->sli4_hba.ue_mask_hi);
10955 phba->work_status[0] = uerr_sta_lo;
10956 phba->work_status[1] = uerr_sta_hi;
10957 phba->work_ha |= HA_ERATT;
10958 phba->hba_flag |= HBA_ERATT_HANDLED;
10962 case LPFC_SLI_INTF_IF_TYPE_2:
10963 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
10964 &portstat_reg.word0) ||
10965 lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
10967 phba->work_hs |= UNPLUG_ERR;
10968 phba->work_ha |= HA_ERATT;
10969 phba->hba_flag |= HBA_ERATT_HANDLED;
10972 if (bf_get(lpfc_sliport_status_err, &portstat_reg)) {
10973 phba->work_status[0] =
10974 readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
10975 phba->work_status[1] =
10976 readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
10977 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10978 "2885 Port Status Event: "
10979 "port status reg 0x%x, "
10980 "port smphr reg 0x%x, "
10981 "error 1=0x%x, error 2=0x%x\n",
10982 portstat_reg.word0,
10984 phba->work_status[0],
10985 phba->work_status[1]);
10986 phba->work_ha |= HA_ERATT;
10987 phba->hba_flag |= HBA_ERATT_HANDLED;
10991 case LPFC_SLI_INTF_IF_TYPE_1:
10993 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10994 "2886 HBA Error Attention on unsupported "
10995 "if type %d.", if_type);
11003 * lpfc_sli_check_eratt - check error attention events
11004 * @phba: Pointer to HBA context.
11006 * This function is called from timer soft interrupt context to check HBA's
11007 * error attention register bit for error attention events.
11009 * This function returns 1 when there is Error Attention in the Host Attention
11010 * Register and returns 0 otherwise.
11013 lpfc_sli_check_eratt(struct lpfc_hba *phba)
11017 /* If somebody is waiting to handle an eratt, don't process it
11018 * here. The brdkill function will do this.
11020 if (phba->link_flag & LS_IGNORE_ERATT)
11023 /* Check if interrupt handler handles this ERATT */
11024 spin_lock_irq(&phba->hbalock);
11025 if (phba->hba_flag & HBA_ERATT_HANDLED) {
11026 /* Interrupt handler has handled ERATT */
11027 spin_unlock_irq(&phba->hbalock);
11032 * If there is deferred error attention, do not check for error
11035 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
11036 spin_unlock_irq(&phba->hbalock);
11040 /* If PCI channel is offline, don't process it */
11041 if (unlikely(pci_channel_offline(phba->pcidev))) {
11042 spin_unlock_irq(&phba->hbalock);
11046 switch (phba->sli_rev) {
11047 case LPFC_SLI_REV2:
11048 case LPFC_SLI_REV3:
11049 /* Read chip Host Attention (HA) register */
11050 ha_copy = lpfc_sli_eratt_read(phba);
11052 case LPFC_SLI_REV4:
11053 /* Read device Uncoverable Error (UERR) registers */
11054 ha_copy = lpfc_sli4_eratt_read(phba);
11057 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11058 "0299 Invalid SLI revision (%d)\n",
11063 spin_unlock_irq(&phba->hbalock);
11069 * lpfc_intr_state_check - Check device state for interrupt handling
11070 * @phba: Pointer to HBA context.
11072 * This inline routine checks whether a device or its PCI slot is in a state
11073 * that the interrupt should be handled.
11075 * This function returns 0 if the device or the PCI slot is in a state that
11076 * interrupt should be handled, otherwise -EIO.
11079 lpfc_intr_state_check(struct lpfc_hba *phba)
11081 /* If the pci channel is offline, ignore all the interrupts */
11082 if (unlikely(pci_channel_offline(phba->pcidev)))
11085 /* Update device level interrupt statistics */
11086 phba->sli.slistat.sli_intr++;
11088 /* Ignore all interrupts during initialization. */
11089 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
11096 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
11097 * @irq: Interrupt number.
11098 * @dev_id: The device context pointer.
11100 * This function is directly called from the PCI layer as an interrupt
11101 * service routine when device with SLI-3 interface spec is enabled with
11102 * MSI-X multi-message interrupt mode and there are slow-path events in
11103 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
11104 * interrupt mode, this function is called as part of the device-level
11105 * interrupt handler. When the PCI slot is in error recovery or the HBA
11106 * is undergoing initialization, the interrupt handler will not process
11107 * the interrupt. The link attention and ELS ring attention events are
11108 * handled by the worker thread. The interrupt handler signals the worker
11109 * thread and returns for these events. This function is called without
11110 * any lock held. It gets the hbalock to access and update SLI data
11113 * This function returns IRQ_HANDLED when interrupt is handled else it
11114 * returns IRQ_NONE.
11117 lpfc_sli_sp_intr_handler(int irq, void *dev_id)
11119 struct lpfc_hba *phba;
11120 uint32_t ha_copy, hc_copy;
11121 uint32_t work_ha_copy;
11122 unsigned long status;
11123 unsigned long iflag;
11126 MAILBOX_t *mbox, *pmbox;
11127 struct lpfc_vport *vport;
11128 struct lpfc_nodelist *ndlp;
11129 struct lpfc_dmabuf *mp;
11134 * Get the driver's phba structure from the dev_id and
11135 * assume the HBA is not interrupting.
11137 phba = (struct lpfc_hba *)dev_id;
11139 if (unlikely(!phba))
11143 * Stuff needs to be attented to when this function is invoked as an
11144 * individual interrupt handler in MSI-X multi-message interrupt mode
11146 if (phba->intr_type == MSIX) {
11147 /* Check device state for handling interrupt */
11148 if (lpfc_intr_state_check(phba))
11150 /* Need to read HA REG for slow-path events */
11151 spin_lock_irqsave(&phba->hbalock, iflag);
11152 if (lpfc_readl(phba->HAregaddr, &ha_copy))
11154 /* If somebody is waiting to handle an eratt don't process it
11155 * here. The brdkill function will do this.
11157 if (phba->link_flag & LS_IGNORE_ERATT)
11158 ha_copy &= ~HA_ERATT;
11159 /* Check the need for handling ERATT in interrupt handler */
11160 if (ha_copy & HA_ERATT) {
11161 if (phba->hba_flag & HBA_ERATT_HANDLED)
11162 /* ERATT polling has handled ERATT */
11163 ha_copy &= ~HA_ERATT;
11165 /* Indicate interrupt handler handles ERATT */
11166 phba->hba_flag |= HBA_ERATT_HANDLED;
11170 * If there is deferred error attention, do not check for any
11173 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
11174 spin_unlock_irqrestore(&phba->hbalock, iflag);
11178 /* Clear up only attention source related to slow-path */
11179 if (lpfc_readl(phba->HCregaddr, &hc_copy))
11182 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
11183 HC_LAINT_ENA | HC_ERINT_ENA),
11185 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
11187 writel(hc_copy, phba->HCregaddr);
11188 readl(phba->HAregaddr); /* flush */
11189 spin_unlock_irqrestore(&phba->hbalock, iflag);
11191 ha_copy = phba->ha_copy;
11193 work_ha_copy = ha_copy & phba->work_ha_mask;
11195 if (work_ha_copy) {
11196 if (work_ha_copy & HA_LATT) {
11197 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
11199 * Turn off Link Attention interrupts
11200 * until CLEAR_LA done
11202 spin_lock_irqsave(&phba->hbalock, iflag);
11203 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
11204 if (lpfc_readl(phba->HCregaddr, &control))
11206 control &= ~HC_LAINT_ENA;
11207 writel(control, phba->HCregaddr);
11208 readl(phba->HCregaddr); /* flush */
11209 spin_unlock_irqrestore(&phba->hbalock, iflag);
11212 work_ha_copy &= ~HA_LATT;
11215 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
11217 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
11218 * the only slow ring.
11220 status = (work_ha_copy &
11221 (HA_RXMASK << (4*LPFC_ELS_RING)));
11222 status >>= (4*LPFC_ELS_RING);
11223 if (status & HA_RXMASK) {
11224 spin_lock_irqsave(&phba->hbalock, iflag);
11225 if (lpfc_readl(phba->HCregaddr, &control))
11228 lpfc_debugfs_slow_ring_trc(phba,
11229 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
11231 (uint32_t)phba->sli.slistat.sli_intr);
11233 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
11234 lpfc_debugfs_slow_ring_trc(phba,
11235 "ISR Disable ring:"
11236 "pwork:x%x hawork:x%x wait:x%x",
11237 phba->work_ha, work_ha_copy,
11238 (uint32_t)((unsigned long)
11239 &phba->work_waitq));
11242 ~(HC_R0INT_ENA << LPFC_ELS_RING);
11243 writel(control, phba->HCregaddr);
11244 readl(phba->HCregaddr); /* flush */
11247 lpfc_debugfs_slow_ring_trc(phba,
11248 "ISR slow ring: pwork:"
11249 "x%x hawork:x%x wait:x%x",
11250 phba->work_ha, work_ha_copy,
11251 (uint32_t)((unsigned long)
11252 &phba->work_waitq));
11254 spin_unlock_irqrestore(&phba->hbalock, iflag);
11257 spin_lock_irqsave(&phba->hbalock, iflag);
11258 if (work_ha_copy & HA_ERATT) {
11259 if (lpfc_sli_read_hs(phba))
11262 * Check if there is a deferred error condition
11265 if ((HS_FFER1 & phba->work_hs) &&
11266 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
11267 HS_FFER6 | HS_FFER7 | HS_FFER8) &
11269 phba->hba_flag |= DEFER_ERATT;
11270 /* Clear all interrupt enable conditions */
11271 writel(0, phba->HCregaddr);
11272 readl(phba->HCregaddr);
11276 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
11277 pmb = phba->sli.mbox_active;
11278 pmbox = &pmb->u.mb;
11280 vport = pmb->vport;
11282 /* First check out the status word */
11283 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
11284 if (pmbox->mbxOwner != OWN_HOST) {
11285 spin_unlock_irqrestore(&phba->hbalock, iflag);
11287 * Stray Mailbox Interrupt, mbxCommand <cmd>
11288 * mbxStatus <status>
11290 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
11292 "(%d):0304 Stray Mailbox "
11293 "Interrupt mbxCommand x%x "
11295 (vport ? vport->vpi : 0),
11298 /* clear mailbox attention bit */
11299 work_ha_copy &= ~HA_MBATT;
11301 phba->sli.mbox_active = NULL;
11302 spin_unlock_irqrestore(&phba->hbalock, iflag);
11303 phba->last_completion_time = jiffies;
11304 del_timer(&phba->sli.mbox_tmo);
11305 if (pmb->mbox_cmpl) {
11306 lpfc_sli_pcimem_bcopy(mbox, pmbox,
11308 if (pmb->out_ext_byte_len &&
11310 lpfc_sli_pcimem_bcopy(
11313 pmb->out_ext_byte_len);
11315 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
11316 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
11318 lpfc_debugfs_disc_trc(vport,
11319 LPFC_DISC_TRC_MBOX_VPORT,
11320 "MBOX dflt rpi: : "
11321 "status:x%x rpi:x%x",
11322 (uint32_t)pmbox->mbxStatus,
11323 pmbox->un.varWords[0], 0);
11325 if (!pmbox->mbxStatus) {
11326 mp = (struct lpfc_dmabuf *)
11328 ndlp = (struct lpfc_nodelist *)
11331 /* Reg_LOGIN of dflt RPI was
11332 * successful. new lets get
11333 * rid of the RPI using the
11334 * same mbox buffer.
11336 lpfc_unreg_login(phba,
11338 pmbox->un.varWords[0],
11341 lpfc_mbx_cmpl_dflt_rpi;
11342 pmb->context1 = mp;
11343 pmb->context2 = ndlp;
11344 pmb->vport = vport;
11345 rc = lpfc_sli_issue_mbox(phba,
11348 if (rc != MBX_BUSY)
11349 lpfc_printf_log(phba,
11351 LOG_MBOX | LOG_SLI,
11352 "0350 rc should have"
11353 "been MBX_BUSY\n");
11354 if (rc != MBX_NOT_FINISHED)
11355 goto send_current_mbox;
11359 &phba->pport->work_port_lock,
11361 phba->pport->work_port_events &=
11363 spin_unlock_irqrestore(
11364 &phba->pport->work_port_lock,
11366 lpfc_mbox_cmpl_put(phba, pmb);
11369 spin_unlock_irqrestore(&phba->hbalock, iflag);
11371 if ((work_ha_copy & HA_MBATT) &&
11372 (phba->sli.mbox_active == NULL)) {
11374 /* Process next mailbox command if there is one */
11376 rc = lpfc_sli_issue_mbox(phba, NULL,
11378 } while (rc == MBX_NOT_FINISHED);
11379 if (rc != MBX_SUCCESS)
11380 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
11381 LOG_SLI, "0349 rc should be "
11385 spin_lock_irqsave(&phba->hbalock, iflag);
11386 phba->work_ha |= work_ha_copy;
11387 spin_unlock_irqrestore(&phba->hbalock, iflag);
11388 lpfc_worker_wake_up(phba);
11390 return IRQ_HANDLED;
11392 spin_unlock_irqrestore(&phba->hbalock, iflag);
11393 return IRQ_HANDLED;
11395 } /* lpfc_sli_sp_intr_handler */
11398 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
11399 * @irq: Interrupt number.
11400 * @dev_id: The device context pointer.
11402 * This function is directly called from the PCI layer as an interrupt
11403 * service routine when device with SLI-3 interface spec is enabled with
11404 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
11405 * ring event in the HBA. However, when the device is enabled with either
11406 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
11407 * device-level interrupt handler. When the PCI slot is in error recovery
11408 * or the HBA is undergoing initialization, the interrupt handler will not
11409 * process the interrupt. The SCSI FCP fast-path ring event are handled in
11410 * the intrrupt context. This function is called without any lock held.
11411 * It gets the hbalock to access and update SLI data structures.
11413 * This function returns IRQ_HANDLED when interrupt is handled else it
11414 * returns IRQ_NONE.
11417 lpfc_sli_fp_intr_handler(int irq, void *dev_id)
11419 struct lpfc_hba *phba;
11421 unsigned long status;
11422 unsigned long iflag;
11424 /* Get the driver's phba structure from the dev_id and
11425 * assume the HBA is not interrupting.
11427 phba = (struct lpfc_hba *) dev_id;
11429 if (unlikely(!phba))
11433 * Stuff needs to be attented to when this function is invoked as an
11434 * individual interrupt handler in MSI-X multi-message interrupt mode
11436 if (phba->intr_type == MSIX) {
11437 /* Check device state for handling interrupt */
11438 if (lpfc_intr_state_check(phba))
11440 /* Need to read HA REG for FCP ring and other ring events */
11441 if (lpfc_readl(phba->HAregaddr, &ha_copy))
11442 return IRQ_HANDLED;
11443 /* Clear up only attention source related to fast-path */
11444 spin_lock_irqsave(&phba->hbalock, iflag);
11446 * If there is deferred error attention, do not check for
11449 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
11450 spin_unlock_irqrestore(&phba->hbalock, iflag);
11453 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
11455 readl(phba->HAregaddr); /* flush */
11456 spin_unlock_irqrestore(&phba->hbalock, iflag);
11458 ha_copy = phba->ha_copy;
11461 * Process all events on FCP ring. Take the optimized path for FCP IO.
11463 ha_copy &= ~(phba->work_ha_mask);
11465 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
11466 status >>= (4*LPFC_FCP_RING);
11467 if (status & HA_RXMASK)
11468 lpfc_sli_handle_fast_ring_event(phba,
11469 &phba->sli.ring[LPFC_FCP_RING],
11472 if (phba->cfg_multi_ring_support == 2) {
11474 * Process all events on extra ring. Take the optimized path
11475 * for extra ring IO.
11477 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
11478 status >>= (4*LPFC_EXTRA_RING);
11479 if (status & HA_RXMASK) {
11480 lpfc_sli_handle_fast_ring_event(phba,
11481 &phba->sli.ring[LPFC_EXTRA_RING],
11485 return IRQ_HANDLED;
11486 } /* lpfc_sli_fp_intr_handler */
11489 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
11490 * @irq: Interrupt number.
11491 * @dev_id: The device context pointer.
11493 * This function is the HBA device-level interrupt handler to device with
11494 * SLI-3 interface spec, called from the PCI layer when either MSI or
11495 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
11496 * requires driver attention. This function invokes the slow-path interrupt
11497 * attention handling function and fast-path interrupt attention handling
11498 * function in turn to process the relevant HBA attention events. This
11499 * function is called without any lock held. It gets the hbalock to access
11500 * and update SLI data structures.
11502 * This function returns IRQ_HANDLED when interrupt is handled, else it
11503 * returns IRQ_NONE.
11506 lpfc_sli_intr_handler(int irq, void *dev_id)
11508 struct lpfc_hba *phba;
11509 irqreturn_t sp_irq_rc, fp_irq_rc;
11510 unsigned long status1, status2;
11514 * Get the driver's phba structure from the dev_id and
11515 * assume the HBA is not interrupting.
11517 phba = (struct lpfc_hba *) dev_id;
11519 if (unlikely(!phba))
11522 /* Check device state for handling interrupt */
11523 if (lpfc_intr_state_check(phba))
11526 spin_lock(&phba->hbalock);
11527 if (lpfc_readl(phba->HAregaddr, &phba->ha_copy)) {
11528 spin_unlock(&phba->hbalock);
11529 return IRQ_HANDLED;
11532 if (unlikely(!phba->ha_copy)) {
11533 spin_unlock(&phba->hbalock);
11535 } else if (phba->ha_copy & HA_ERATT) {
11536 if (phba->hba_flag & HBA_ERATT_HANDLED)
11537 /* ERATT polling has handled ERATT */
11538 phba->ha_copy &= ~HA_ERATT;
11540 /* Indicate interrupt handler handles ERATT */
11541 phba->hba_flag |= HBA_ERATT_HANDLED;
11545 * If there is deferred error attention, do not check for any interrupt.
11547 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
11548 spin_unlock(&phba->hbalock);
11552 /* Clear attention sources except link and error attentions */
11553 if (lpfc_readl(phba->HCregaddr, &hc_copy)) {
11554 spin_unlock(&phba->hbalock);
11555 return IRQ_HANDLED;
11557 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
11558 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
11560 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
11561 writel(hc_copy, phba->HCregaddr);
11562 readl(phba->HAregaddr); /* flush */
11563 spin_unlock(&phba->hbalock);
11566 * Invokes slow-path host attention interrupt handling as appropriate.
11569 /* status of events with mailbox and link attention */
11570 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
11572 /* status of events with ELS ring */
11573 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
11574 status2 >>= (4*LPFC_ELS_RING);
11576 if (status1 || (status2 & HA_RXMASK))
11577 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
11579 sp_irq_rc = IRQ_NONE;
11582 * Invoke fast-path host attention interrupt handling as appropriate.
11585 /* status of events with FCP ring */
11586 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
11587 status1 >>= (4*LPFC_FCP_RING);
11589 /* status of events with extra ring */
11590 if (phba->cfg_multi_ring_support == 2) {
11591 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
11592 status2 >>= (4*LPFC_EXTRA_RING);
11596 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
11597 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
11599 fp_irq_rc = IRQ_NONE;
11601 /* Return device-level interrupt handling status */
11602 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
11603 } /* lpfc_sli_intr_handler */
11606 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
11607 * @phba: pointer to lpfc hba data structure.
11609 * This routine is invoked by the worker thread to process all the pending
11610 * SLI4 FCP abort XRI events.
11612 void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba)
11614 struct lpfc_cq_event *cq_event;
11616 /* First, declare the fcp xri abort event has been handled */
11617 spin_lock_irq(&phba->hbalock);
11618 phba->hba_flag &= ~FCP_XRI_ABORT_EVENT;
11619 spin_unlock_irq(&phba->hbalock);
11620 /* Now, handle all the fcp xri abort events */
11621 while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) {
11622 /* Get the first event from the head of the event queue */
11623 spin_lock_irq(&phba->hbalock);
11624 list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
11625 cq_event, struct lpfc_cq_event, list);
11626 spin_unlock_irq(&phba->hbalock);
11627 /* Notify aborted XRI for FCP work queue */
11628 lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
11629 /* Free the event processed back to the free pool */
11630 lpfc_sli4_cq_event_release(phba, cq_event);
11635 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
11636 * @phba: pointer to lpfc hba data structure.
11638 * This routine is invoked by the worker thread to process all the pending
11639 * SLI4 els abort xri events.
11641 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
11643 struct lpfc_cq_event *cq_event;
11645 /* First, declare the els xri abort event has been handled */
11646 spin_lock_irq(&phba->hbalock);
11647 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
11648 spin_unlock_irq(&phba->hbalock);
11649 /* Now, handle all the els xri abort events */
11650 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
11651 /* Get the first event from the head of the event queue */
11652 spin_lock_irq(&phba->hbalock);
11653 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
11654 cq_event, struct lpfc_cq_event, list);
11655 spin_unlock_irq(&phba->hbalock);
11656 /* Notify aborted XRI for ELS work queue */
11657 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
11658 /* Free the event processed back to the free pool */
11659 lpfc_sli4_cq_event_release(phba, cq_event);
11664 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
11665 * @phba: pointer to lpfc hba data structure
11666 * @pIocbIn: pointer to the rspiocbq
11667 * @pIocbOut: pointer to the cmdiocbq
11668 * @wcqe: pointer to the complete wcqe
11670 * This routine transfers the fields of a command iocbq to a response iocbq
11671 * by copying all the IOCB fields from command iocbq and transferring the
11672 * completion status information from the complete wcqe.
11675 lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
11676 struct lpfc_iocbq *pIocbIn,
11677 struct lpfc_iocbq *pIocbOut,
11678 struct lpfc_wcqe_complete *wcqe)
11681 unsigned long iflags;
11682 uint32_t status, max_response;
11683 struct lpfc_dmabuf *dmabuf;
11684 struct ulp_bde64 *bpl, bde;
11685 size_t offset = offsetof(struct lpfc_iocbq, iocb);
11687 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
11688 sizeof(struct lpfc_iocbq) - offset);
11689 /* Map WCQE parameters into irspiocb parameters */
11690 status = bf_get(lpfc_wcqe_c_status, wcqe);
11691 pIocbIn->iocb.ulpStatus = (status & LPFC_IOCB_STATUS_MASK);
11692 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
11693 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
11694 pIocbIn->iocb.un.fcpi.fcpi_parm =
11695 pIocbOut->iocb.un.fcpi.fcpi_parm -
11696 wcqe->total_data_placed;
11698 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
11700 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
11701 switch (pIocbOut->iocb.ulpCommand) {
11702 case CMD_ELS_REQUEST64_CR:
11703 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
11704 bpl = (struct ulp_bde64 *)dmabuf->virt;
11705 bde.tus.w = le32_to_cpu(bpl[1].tus.w);
11706 max_response = bde.tus.f.bdeSize;
11708 case CMD_GEN_REQUEST64_CR:
11710 if (!pIocbOut->context3)
11712 numBdes = pIocbOut->iocb.un.genreq64.bdl.bdeSize/
11713 sizeof(struct ulp_bde64);
11714 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
11715 bpl = (struct ulp_bde64 *)dmabuf->virt;
11716 for (i = 0; i < numBdes; i++) {
11717 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
11718 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
11719 max_response += bde.tus.f.bdeSize;
11723 max_response = wcqe->total_data_placed;
11726 if (max_response < wcqe->total_data_placed)
11727 pIocbIn->iocb.un.genreq64.bdl.bdeSize = max_response;
11729 pIocbIn->iocb.un.genreq64.bdl.bdeSize =
11730 wcqe->total_data_placed;
11733 /* Convert BG errors for completion status */
11734 if (status == CQE_STATUS_DI_ERROR) {
11735 pIocbIn->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
11737 if (bf_get(lpfc_wcqe_c_bg_edir, wcqe))
11738 pIocbIn->iocb.un.ulpWord[4] = IOERR_RX_DMA_FAILED;
11740 pIocbIn->iocb.un.ulpWord[4] = IOERR_TX_DMA_FAILED;
11742 pIocbIn->iocb.unsli3.sli3_bg.bgstat = 0;
11743 if (bf_get(lpfc_wcqe_c_bg_ge, wcqe)) /* Guard Check failed */
11744 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11745 BGS_GUARD_ERR_MASK;
11746 if (bf_get(lpfc_wcqe_c_bg_ae, wcqe)) /* App Tag Check failed */
11747 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11748 BGS_APPTAG_ERR_MASK;
11749 if (bf_get(lpfc_wcqe_c_bg_re, wcqe)) /* Ref Tag Check failed */
11750 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11751 BGS_REFTAG_ERR_MASK;
11753 /* Check to see if there was any good data before the error */
11754 if (bf_get(lpfc_wcqe_c_bg_tdpv, wcqe)) {
11755 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11756 BGS_HI_WATER_MARK_PRESENT_MASK;
11757 pIocbIn->iocb.unsli3.sli3_bg.bghm =
11758 wcqe->total_data_placed;
11762 * Set ALL the error bits to indicate we don't know what
11763 * type of error it is.
11765 if (!pIocbIn->iocb.unsli3.sli3_bg.bgstat)
11766 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11767 (BGS_REFTAG_ERR_MASK | BGS_APPTAG_ERR_MASK |
11768 BGS_GUARD_ERR_MASK);
11771 /* Pick up HBA exchange busy condition */
11772 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
11773 spin_lock_irqsave(&phba->hbalock, iflags);
11774 pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY;
11775 spin_unlock_irqrestore(&phba->hbalock, iflags);
11780 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
11781 * @phba: Pointer to HBA context object.
11782 * @wcqe: Pointer to work-queue completion queue entry.
11784 * This routine handles an ELS work-queue completion event and construct
11785 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
11786 * discovery engine to handle.
11788 * Return: Pointer to the receive IOCBQ, NULL otherwise.
11790 static struct lpfc_iocbq *
11791 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
11792 struct lpfc_iocbq *irspiocbq)
11794 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
11795 struct lpfc_iocbq *cmdiocbq;
11796 struct lpfc_wcqe_complete *wcqe;
11797 unsigned long iflags;
11799 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
11800 spin_lock_irqsave(&pring->ring_lock, iflags);
11801 pring->stats.iocb_event++;
11802 /* Look up the ELS command IOCB and create pseudo response IOCB */
11803 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
11804 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11805 spin_unlock_irqrestore(&pring->ring_lock, iflags);
11807 if (unlikely(!cmdiocbq)) {
11808 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11809 "0386 ELS complete with no corresponding "
11810 "cmdiocb: iotag (%d)\n",
11811 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11812 lpfc_sli_release_iocbq(phba, irspiocbq);
11816 /* Fake the irspiocbq and copy necessary response information */
11817 lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe);
11823 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
11824 * @phba: Pointer to HBA context object.
11825 * @cqe: Pointer to mailbox completion queue entry.
11827 * This routine process a mailbox completion queue entry with asynchrous
11830 * Return: true if work posted to worker thread, otherwise false.
11833 lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
11835 struct lpfc_cq_event *cq_event;
11836 unsigned long iflags;
11838 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11839 "0392 Async Event: word0:x%x, word1:x%x, "
11840 "word2:x%x, word3:x%x\n", mcqe->word0,
11841 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
11843 /* Allocate a new internal CQ_EVENT entry */
11844 cq_event = lpfc_sli4_cq_event_alloc(phba);
11846 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11847 "0394 Failed to allocate CQ_EVENT entry\n");
11851 /* Move the CQE into an asynchronous event entry */
11852 memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe));
11853 spin_lock_irqsave(&phba->hbalock, iflags);
11854 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
11855 /* Set the async event flag */
11856 phba->hba_flag |= ASYNC_EVENT;
11857 spin_unlock_irqrestore(&phba->hbalock, iflags);
11863 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
11864 * @phba: Pointer to HBA context object.
11865 * @cqe: Pointer to mailbox completion queue entry.
11867 * This routine process a mailbox completion queue entry with mailbox
11868 * completion event.
11870 * Return: true if work posted to worker thread, otherwise false.
11873 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
11875 uint32_t mcqe_status;
11876 MAILBOX_t *mbox, *pmbox;
11877 struct lpfc_mqe *mqe;
11878 struct lpfc_vport *vport;
11879 struct lpfc_nodelist *ndlp;
11880 struct lpfc_dmabuf *mp;
11881 unsigned long iflags;
11883 bool workposted = false;
11886 /* If not a mailbox complete MCQE, out by checking mailbox consume */
11887 if (!bf_get(lpfc_trailer_completed, mcqe))
11888 goto out_no_mqe_complete;
11890 /* Get the reference to the active mbox command */
11891 spin_lock_irqsave(&phba->hbalock, iflags);
11892 pmb = phba->sli.mbox_active;
11893 if (unlikely(!pmb)) {
11894 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
11895 "1832 No pending MBOX command to handle\n");
11896 spin_unlock_irqrestore(&phba->hbalock, iflags);
11897 goto out_no_mqe_complete;
11899 spin_unlock_irqrestore(&phba->hbalock, iflags);
11901 pmbox = (MAILBOX_t *)&pmb->u.mqe;
11903 vport = pmb->vport;
11905 /* Reset heartbeat timer */
11906 phba->last_completion_time = jiffies;
11907 del_timer(&phba->sli.mbox_tmo);
11909 /* Move mbox data to caller's mailbox region, do endian swapping */
11910 if (pmb->mbox_cmpl && mbox)
11911 lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
11914 * For mcqe errors, conditionally move a modified error code to
11915 * the mbox so that the error will not be missed.
11917 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
11918 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
11919 if (bf_get(lpfc_mqe_status, mqe) == MBX_SUCCESS)
11920 bf_set(lpfc_mqe_status, mqe,
11921 (LPFC_MBX_ERROR_RANGE | mcqe_status));
11923 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
11924 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
11925 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
11926 "MBOX dflt rpi: status:x%x rpi:x%x",
11928 pmbox->un.varWords[0], 0);
11929 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
11930 mp = (struct lpfc_dmabuf *)(pmb->context1);
11931 ndlp = (struct lpfc_nodelist *)pmb->context2;
11932 /* Reg_LOGIN of dflt RPI was successful. Now lets get
11933 * RID of the PPI using the same mbox buffer.
11935 lpfc_unreg_login(phba, vport->vpi,
11936 pmbox->un.varWords[0], pmb);
11937 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
11938 pmb->context1 = mp;
11939 pmb->context2 = ndlp;
11940 pmb->vport = vport;
11941 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
11942 if (rc != MBX_BUSY)
11943 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
11944 LOG_SLI, "0385 rc should "
11945 "have been MBX_BUSY\n");
11946 if (rc != MBX_NOT_FINISHED)
11947 goto send_current_mbox;
11950 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
11951 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
11952 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
11954 /* There is mailbox completion work to do */
11955 spin_lock_irqsave(&phba->hbalock, iflags);
11956 __lpfc_mbox_cmpl_put(phba, pmb);
11957 phba->work_ha |= HA_MBATT;
11958 spin_unlock_irqrestore(&phba->hbalock, iflags);
11962 spin_lock_irqsave(&phba->hbalock, iflags);
11963 /* Release the mailbox command posting token */
11964 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
11965 /* Setting active mailbox pointer need to be in sync to flag clear */
11966 phba->sli.mbox_active = NULL;
11967 if (bf_get(lpfc_trailer_consumed, mcqe))
11968 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
11969 spin_unlock_irqrestore(&phba->hbalock, iflags);
11970 /* Wake up worker thread to post the next pending mailbox command */
11971 lpfc_worker_wake_up(phba);
11974 out_no_mqe_complete:
11975 spin_lock_irqsave(&phba->hbalock, iflags);
11976 if (bf_get(lpfc_trailer_consumed, mcqe))
11977 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
11978 spin_unlock_irqrestore(&phba->hbalock, iflags);
11983 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
11984 * @phba: Pointer to HBA context object.
11985 * @cqe: Pointer to mailbox completion queue entry.
11987 * This routine process a mailbox completion queue entry, it invokes the
11988 * proper mailbox complete handling or asynchrous event handling routine
11989 * according to the MCQE's async bit.
11991 * Return: true if work posted to worker thread, otherwise false.
11994 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
11996 struct lpfc_mcqe mcqe;
11999 /* Copy the mailbox MCQE and convert endian order as needed */
12000 lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
12002 /* Invoke the proper event handling routine */
12003 if (!bf_get(lpfc_trailer_async, &mcqe))
12004 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
12006 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
12011 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
12012 * @phba: Pointer to HBA context object.
12013 * @cq: Pointer to associated CQ
12014 * @wcqe: Pointer to work-queue completion queue entry.
12016 * This routine handles an ELS work-queue completion event.
12018 * Return: true if work posted to worker thread, otherwise false.
12021 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
12022 struct lpfc_wcqe_complete *wcqe)
12024 struct lpfc_iocbq *irspiocbq;
12025 unsigned long iflags;
12026 struct lpfc_sli_ring *pring = cq->pring;
12028 int txcmplq_cnt = 0;
12029 int fcp_txcmplq_cnt = 0;
12031 /* Get an irspiocbq for later ELS response processing use */
12032 irspiocbq = lpfc_sli_get_iocbq(phba);
12034 if (!list_empty(&pring->txq))
12036 if (!list_empty(&pring->txcmplq))
12038 if (!list_empty(&phba->sli.ring[LPFC_FCP_RING].txcmplq))
12040 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12041 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
12042 "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n",
12043 txq_cnt, phba->iocb_cnt,
12049 /* Save off the slow-path queue event for work thread to process */
12050 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
12051 spin_lock_irqsave(&phba->hbalock, iflags);
12052 list_add_tail(&irspiocbq->cq_event.list,
12053 &phba->sli4_hba.sp_queue_event);
12054 phba->hba_flag |= HBA_SP_QUEUE_EVT;
12055 spin_unlock_irqrestore(&phba->hbalock, iflags);
12061 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
12062 * @phba: Pointer to HBA context object.
12063 * @wcqe: Pointer to work-queue completion queue entry.
12065 * This routine handles slow-path WQ entry comsumed event by invoking the
12066 * proper WQ release routine to the slow-path WQ.
12069 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
12070 struct lpfc_wcqe_release *wcqe)
12072 /* sanity check on queue memory */
12073 if (unlikely(!phba->sli4_hba.els_wq))
12075 /* Check for the slow-path ELS work queue */
12076 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
12077 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
12078 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
12080 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12081 "2579 Slow-path wqe consume event carries "
12082 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
12083 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
12084 phba->sli4_hba.els_wq->queue_id);
12088 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
12089 * @phba: Pointer to HBA context object.
12090 * @cq: Pointer to a WQ completion queue.
12091 * @wcqe: Pointer to work-queue completion queue entry.
12093 * This routine handles an XRI abort event.
12095 * Return: true if work posted to worker thread, otherwise false.
12098 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
12099 struct lpfc_queue *cq,
12100 struct sli4_wcqe_xri_aborted *wcqe)
12102 bool workposted = false;
12103 struct lpfc_cq_event *cq_event;
12104 unsigned long iflags;
12106 /* Allocate a new internal CQ_EVENT entry */
12107 cq_event = lpfc_sli4_cq_event_alloc(phba);
12109 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12110 "0602 Failed to allocate CQ_EVENT entry\n");
12114 /* Move the CQE into the proper xri abort event list */
12115 memcpy(&cq_event->cqe, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
12116 switch (cq->subtype) {
12118 spin_lock_irqsave(&phba->hbalock, iflags);
12119 list_add_tail(&cq_event->list,
12120 &phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
12121 /* Set the fcp xri abort event flag */
12122 phba->hba_flag |= FCP_XRI_ABORT_EVENT;
12123 spin_unlock_irqrestore(&phba->hbalock, iflags);
12127 spin_lock_irqsave(&phba->hbalock, iflags);
12128 list_add_tail(&cq_event->list,
12129 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
12130 /* Set the els xri abort event flag */
12131 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
12132 spin_unlock_irqrestore(&phba->hbalock, iflags);
12136 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12137 "0603 Invalid work queue CQE subtype (x%x)\n",
12139 workposted = false;
12146 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
12147 * @phba: Pointer to HBA context object.
12148 * @rcqe: Pointer to receive-queue completion queue entry.
12150 * This routine process a receive-queue completion queue entry.
12152 * Return: true if work posted to worker thread, otherwise false.
12155 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
12157 bool workposted = false;
12158 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
12159 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
12160 struct hbq_dmabuf *dma_buf;
12161 uint32_t status, rq_id;
12162 unsigned long iflags;
12164 /* sanity check on queue memory */
12165 if (unlikely(!hrq) || unlikely(!drq))
12168 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
12169 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
12171 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
12172 if (rq_id != hrq->queue_id)
12175 status = bf_get(lpfc_rcqe_status, rcqe);
12177 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
12178 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12179 "2537 Receive Frame Truncated!!\n");
12180 hrq->RQ_buf_trunc++;
12181 case FC_STATUS_RQ_SUCCESS:
12182 lpfc_sli4_rq_release(hrq, drq);
12183 spin_lock_irqsave(&phba->hbalock, iflags);
12184 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
12186 hrq->RQ_no_buf_found++;
12187 spin_unlock_irqrestore(&phba->hbalock, iflags);
12191 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
12192 /* save off the frame for the word thread to process */
12193 list_add_tail(&dma_buf->cq_event.list,
12194 &phba->sli4_hba.sp_queue_event);
12195 /* Frame received */
12196 phba->hba_flag |= HBA_SP_QUEUE_EVT;
12197 spin_unlock_irqrestore(&phba->hbalock, iflags);
12200 case FC_STATUS_INSUFF_BUF_NEED_BUF:
12201 case FC_STATUS_INSUFF_BUF_FRM_DISC:
12202 hrq->RQ_no_posted_buf++;
12203 /* Post more buffers if possible */
12204 spin_lock_irqsave(&phba->hbalock, iflags);
12205 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
12206 spin_unlock_irqrestore(&phba->hbalock, iflags);
12215 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
12216 * @phba: Pointer to HBA context object.
12217 * @cq: Pointer to the completion queue.
12218 * @wcqe: Pointer to a completion queue entry.
12220 * This routine process a slow-path work-queue or receive queue completion queue
12223 * Return: true if work posted to worker thread, otherwise false.
12226 lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
12227 struct lpfc_cqe *cqe)
12229 struct lpfc_cqe cqevt;
12230 bool workposted = false;
12232 /* Copy the work queue CQE and convert endian order if needed */
12233 lpfc_sli_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
12235 /* Check and process for different type of WCQE and dispatch */
12236 switch (bf_get(lpfc_cqe_code, &cqevt)) {
12237 case CQE_CODE_COMPL_WQE:
12238 /* Process the WQ/RQ complete event */
12239 phba->last_completion_time = jiffies;
12240 workposted = lpfc_sli4_sp_handle_els_wcqe(phba, cq,
12241 (struct lpfc_wcqe_complete *)&cqevt);
12243 case CQE_CODE_RELEASE_WQE:
12244 /* Process the WQ release event */
12245 lpfc_sli4_sp_handle_rel_wcqe(phba,
12246 (struct lpfc_wcqe_release *)&cqevt);
12248 case CQE_CODE_XRI_ABORTED:
12249 /* Process the WQ XRI abort event */
12250 phba->last_completion_time = jiffies;
12251 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
12252 (struct sli4_wcqe_xri_aborted *)&cqevt);
12254 case CQE_CODE_RECEIVE:
12255 case CQE_CODE_RECEIVE_V1:
12256 /* Process the RQ event */
12257 phba->last_completion_time = jiffies;
12258 workposted = lpfc_sli4_sp_handle_rcqe(phba,
12259 (struct lpfc_rcqe *)&cqevt);
12262 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12263 "0388 Not a valid WCQE code: x%x\n",
12264 bf_get(lpfc_cqe_code, &cqevt));
12271 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
12272 * @phba: Pointer to HBA context object.
12273 * @eqe: Pointer to fast-path event queue entry.
12275 * This routine process a event queue entry from the slow-path event queue.
12276 * It will check the MajorCode and MinorCode to determine this is for a
12277 * completion event on a completion queue, if not, an error shall be logged
12278 * and just return. Otherwise, it will get to the corresponding completion
12279 * queue and process all the entries on that completion queue, rearm the
12280 * completion queue, and then return.
12284 lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
12285 struct lpfc_queue *speq)
12287 struct lpfc_queue *cq = NULL, *childq;
12288 struct lpfc_cqe *cqe;
12289 bool workposted = false;
12293 /* Get the reference to the corresponding CQ */
12294 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
12296 list_for_each_entry(childq, &speq->child_list, list) {
12297 if (childq->queue_id == cqid) {
12302 if (unlikely(!cq)) {
12303 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
12304 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12305 "0365 Slow-path CQ identifier "
12306 "(%d) does not exist\n", cqid);
12310 /* Process all the entries to the CQ */
12311 switch (cq->type) {
12313 while ((cqe = lpfc_sli4_cq_get(cq))) {
12314 workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe);
12315 if (!(++ecount % cq->entry_repost))
12316 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
12321 while ((cqe = lpfc_sli4_cq_get(cq))) {
12322 if (cq->subtype == LPFC_FCP)
12323 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq,
12326 workposted |= lpfc_sli4_sp_handle_cqe(phba, cq,
12328 if (!(++ecount % cq->entry_repost))
12329 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
12332 /* Track the max number of CQEs processed in 1 EQ */
12333 if (ecount > cq->CQ_max_cqe)
12334 cq->CQ_max_cqe = ecount;
12337 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12338 "0370 Invalid completion queue type (%d)\n",
12343 /* Catch the no cq entry condition, log an error */
12344 if (unlikely(ecount == 0))
12345 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12346 "0371 No entry from the CQ: identifier "
12347 "(x%x), type (%d)\n", cq->queue_id, cq->type);
12349 /* In any case, flash and re-arm the RCQ */
12350 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
12352 /* wake up worker thread if there are works to be done */
12354 lpfc_worker_wake_up(phba);
12358 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
12359 * @phba: Pointer to HBA context object.
12360 * @cq: Pointer to associated CQ
12361 * @wcqe: Pointer to work-queue completion queue entry.
12363 * This routine process a fast-path work queue completion entry from fast-path
12364 * event queue for FCP command response completion.
12367 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
12368 struct lpfc_wcqe_complete *wcqe)
12370 struct lpfc_sli_ring *pring = cq->pring;
12371 struct lpfc_iocbq *cmdiocbq;
12372 struct lpfc_iocbq irspiocbq;
12373 unsigned long iflags;
12375 /* Check for response status */
12376 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
12377 /* If resource errors reported from HBA, reduce queue
12378 * depth of the SCSI device.
12380 if (((bf_get(lpfc_wcqe_c_status, wcqe) ==
12381 IOSTAT_LOCAL_REJECT)) &&
12382 ((wcqe->parameter & IOERR_PARAM_MASK) ==
12383 IOERR_NO_RESOURCES))
12384 phba->lpfc_rampdown_queue_depth(phba);
12386 /* Log the error status */
12387 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12388 "0373 FCP complete error: status=x%x, "
12389 "hw_status=x%x, total_data_specified=%d, "
12390 "parameter=x%x, word3=x%x\n",
12391 bf_get(lpfc_wcqe_c_status, wcqe),
12392 bf_get(lpfc_wcqe_c_hw_status, wcqe),
12393 wcqe->total_data_placed, wcqe->parameter,
12397 /* Look up the FCP command IOCB and create pseudo response IOCB */
12398 spin_lock_irqsave(&pring->ring_lock, iflags);
12399 pring->stats.iocb_event++;
12400 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
12401 bf_get(lpfc_wcqe_c_request_tag, wcqe));
12402 spin_unlock_irqrestore(&pring->ring_lock, iflags);
12403 if (unlikely(!cmdiocbq)) {
12404 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12405 "0374 FCP complete with no corresponding "
12406 "cmdiocb: iotag (%d)\n",
12407 bf_get(lpfc_wcqe_c_request_tag, wcqe));
12410 if (unlikely(!cmdiocbq->iocb_cmpl)) {
12411 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12412 "0375 FCP cmdiocb not callback function "
12414 bf_get(lpfc_wcqe_c_request_tag, wcqe));
12418 /* Fake the irspiocb and copy necessary response information */
12419 lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
12421 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
12422 spin_lock_irqsave(&phba->hbalock, iflags);
12423 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
12424 spin_unlock_irqrestore(&phba->hbalock, iflags);
12427 /* Pass the cmd_iocb and the rsp state to the upper layer */
12428 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
12432 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
12433 * @phba: Pointer to HBA context object.
12434 * @cq: Pointer to completion queue.
12435 * @wcqe: Pointer to work-queue completion queue entry.
12437 * This routine handles an fast-path WQ entry comsumed event by invoking the
12438 * proper WQ release routine to the slow-path WQ.
12441 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
12442 struct lpfc_wcqe_release *wcqe)
12444 struct lpfc_queue *childwq;
12445 bool wqid_matched = false;
12448 /* Check for fast-path FCP work queue release */
12449 fcp_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
12450 list_for_each_entry(childwq, &cq->child_list, list) {
12451 if (childwq->queue_id == fcp_wqid) {
12452 lpfc_sli4_wq_release(childwq,
12453 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
12454 wqid_matched = true;
12458 /* Report warning log message if no match found */
12459 if (wqid_matched != true)
12460 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12461 "2580 Fast-path wqe consume event carries "
12462 "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid);
12466 * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry
12467 * @cq: Pointer to the completion queue.
12468 * @eqe: Pointer to fast-path completion queue entry.
12470 * This routine process a fast-path work queue completion entry from fast-path
12471 * event queue for FCP command response completion.
12474 lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
12475 struct lpfc_cqe *cqe)
12477 struct lpfc_wcqe_release wcqe;
12478 bool workposted = false;
12480 /* Copy the work queue CQE and convert endian order if needed */
12481 lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
12483 /* Check and process for different type of WCQE and dispatch */
12484 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
12485 case CQE_CODE_COMPL_WQE:
12487 /* Process the WQ complete event */
12488 phba->last_completion_time = jiffies;
12489 lpfc_sli4_fp_handle_fcp_wcqe(phba, cq,
12490 (struct lpfc_wcqe_complete *)&wcqe);
12492 case CQE_CODE_RELEASE_WQE:
12493 cq->CQ_release_wqe++;
12494 /* Process the WQ release event */
12495 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
12496 (struct lpfc_wcqe_release *)&wcqe);
12498 case CQE_CODE_XRI_ABORTED:
12499 cq->CQ_xri_aborted++;
12500 /* Process the WQ XRI abort event */
12501 phba->last_completion_time = jiffies;
12502 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
12503 (struct sli4_wcqe_xri_aborted *)&wcqe);
12506 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12507 "0144 Not a valid WCQE code: x%x\n",
12508 bf_get(lpfc_wcqe_c_code, &wcqe));
12515 * lpfc_sli4_hba_handle_eqe - Process a fast-path event queue entry
12516 * @phba: Pointer to HBA context object.
12517 * @eqe: Pointer to fast-path event queue entry.
12519 * This routine process a event queue entry from the fast-path event queue.
12520 * It will check the MajorCode and MinorCode to determine this is for a
12521 * completion event on a completion queue, if not, an error shall be logged
12522 * and just return. Otherwise, it will get to the corresponding completion
12523 * queue and process all the entries on the completion queue, rearm the
12524 * completion queue, and then return.
12527 lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
12530 struct lpfc_queue *cq;
12531 struct lpfc_cqe *cqe;
12532 bool workposted = false;
12536 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
12537 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12538 "0366 Not a valid completion "
12539 "event: majorcode=x%x, minorcode=x%x\n",
12540 bf_get_le32(lpfc_eqe_major_code, eqe),
12541 bf_get_le32(lpfc_eqe_minor_code, eqe));
12545 /* Get the reference to the corresponding CQ */
12546 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
12548 /* Check if this is a Slow path event */
12549 if (unlikely(cqid != phba->sli4_hba.fcp_cq_map[qidx])) {
12550 lpfc_sli4_sp_handle_eqe(phba, eqe,
12551 phba->sli4_hba.hba_eq[qidx]);
12555 if (unlikely(!phba->sli4_hba.fcp_cq)) {
12556 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12557 "3146 Fast-path completion queues "
12558 "does not exist\n");
12561 cq = phba->sli4_hba.fcp_cq[qidx];
12562 if (unlikely(!cq)) {
12563 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
12564 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12565 "0367 Fast-path completion queue "
12566 "(%d) does not exist\n", qidx);
12570 if (unlikely(cqid != cq->queue_id)) {
12571 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12572 "0368 Miss-matched fast-path completion "
12573 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
12574 cqid, cq->queue_id);
12578 /* Process all the entries to the CQ */
12579 while ((cqe = lpfc_sli4_cq_get(cq))) {
12580 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe);
12581 if (!(++ecount % cq->entry_repost))
12582 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
12585 /* Track the max number of CQEs processed in 1 EQ */
12586 if (ecount > cq->CQ_max_cqe)
12587 cq->CQ_max_cqe = ecount;
12589 /* Catch the no cq entry condition */
12590 if (unlikely(ecount == 0))
12591 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12592 "0369 No entry from fast-path completion "
12593 "queue fcpcqid=%d\n", cq->queue_id);
12595 /* In any case, flash and re-arm the CQ */
12596 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
12598 /* wake up worker thread if there are works to be done */
12600 lpfc_worker_wake_up(phba);
12604 lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
12606 struct lpfc_eqe *eqe;
12608 /* walk all the EQ entries and drop on the floor */
12609 while ((eqe = lpfc_sli4_eq_get(eq)))
12612 /* Clear and re-arm the EQ */
12613 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
12618 * lpfc_sli4_fof_handle_eqe - Process a Flash Optimized Fabric event queue
12620 * @phba: Pointer to HBA context object.
12621 * @eqe: Pointer to fast-path event queue entry.
12623 * This routine process a event queue entry from the Flash Optimized Fabric
12624 * event queue. It will check the MajorCode and MinorCode to determine this
12625 * is for a completion event on a completion queue, if not, an error shall be
12626 * logged and just return. Otherwise, it will get to the corresponding
12627 * completion queue and process all the entries on the completion queue, rearm
12628 * the completion queue, and then return.
12631 lpfc_sli4_fof_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe)
12633 struct lpfc_queue *cq;
12634 struct lpfc_cqe *cqe;
12635 bool workposted = false;
12639 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
12640 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12641 "9147 Not a valid completion "
12642 "event: majorcode=x%x, minorcode=x%x\n",
12643 bf_get_le32(lpfc_eqe_major_code, eqe),
12644 bf_get_le32(lpfc_eqe_minor_code, eqe));
12648 /* Get the reference to the corresponding CQ */
12649 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
12651 /* Next check for OAS */
12652 cq = phba->sli4_hba.oas_cq;
12653 if (unlikely(!cq)) {
12654 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
12655 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12656 "9148 OAS completion queue "
12657 "does not exist\n");
12661 if (unlikely(cqid != cq->queue_id)) {
12662 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12663 "9149 Miss-matched fast-path compl "
12664 "queue id: eqcqid=%d, fcpcqid=%d\n",
12665 cqid, cq->queue_id);
12669 /* Process all the entries to the OAS CQ */
12670 while ((cqe = lpfc_sli4_cq_get(cq))) {
12671 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe);
12672 if (!(++ecount % cq->entry_repost))
12673 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
12676 /* Track the max number of CQEs processed in 1 EQ */
12677 if (ecount > cq->CQ_max_cqe)
12678 cq->CQ_max_cqe = ecount;
12680 /* Catch the no cq entry condition */
12681 if (unlikely(ecount == 0))
12682 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12683 "9153 No entry from fast-path completion "
12684 "queue fcpcqid=%d\n", cq->queue_id);
12686 /* In any case, flash and re-arm the CQ */
12687 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
12689 /* wake up worker thread if there are works to be done */
12691 lpfc_worker_wake_up(phba);
12695 * lpfc_sli4_fof_intr_handler - HBA interrupt handler to SLI-4 device
12696 * @irq: Interrupt number.
12697 * @dev_id: The device context pointer.
12699 * This function is directly called from the PCI layer as an interrupt
12700 * service routine when device with SLI-4 interface spec is enabled with
12701 * MSI-X multi-message interrupt mode and there is a Flash Optimized Fabric
12702 * IOCB ring event in the HBA. However, when the device is enabled with either
12703 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
12704 * device-level interrupt handler. When the PCI slot is in error recovery
12705 * or the HBA is undergoing initialization, the interrupt handler will not
12706 * process the interrupt. The Flash Optimized Fabric ring event are handled in
12707 * the intrrupt context. This function is called without any lock held.
12708 * It gets the hbalock to access and update SLI data structures. Note that,
12709 * the EQ to CQ are one-to-one map such that the EQ index is
12710 * equal to that of CQ index.
12712 * This function returns IRQ_HANDLED when interrupt is handled else it
12713 * returns IRQ_NONE.
12716 lpfc_sli4_fof_intr_handler(int irq, void *dev_id)
12718 struct lpfc_hba *phba;
12719 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
12720 struct lpfc_queue *eq;
12721 struct lpfc_eqe *eqe;
12722 unsigned long iflag;
12725 /* Get the driver's phba structure from the dev_id */
12726 fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id;
12727 phba = fcp_eq_hdl->phba;
12729 if (unlikely(!phba))
12732 /* Get to the EQ struct associated with this vector */
12733 eq = phba->sli4_hba.fof_eq;
12737 /* Check device state for handling interrupt */
12738 if (unlikely(lpfc_intr_state_check(phba))) {
12740 /* Check again for link_state with lock held */
12741 spin_lock_irqsave(&phba->hbalock, iflag);
12742 if (phba->link_state < LPFC_LINK_DOWN)
12743 /* Flush, clear interrupt, and rearm the EQ */
12744 lpfc_sli4_eq_flush(phba, eq);
12745 spin_unlock_irqrestore(&phba->hbalock, iflag);
12750 * Process all the event on FCP fast-path EQ
12752 while ((eqe = lpfc_sli4_eq_get(eq))) {
12753 lpfc_sli4_fof_handle_eqe(phba, eqe);
12754 if (!(++ecount % eq->entry_repost))
12755 lpfc_sli4_eq_release(eq, LPFC_QUEUE_NOARM);
12756 eq->EQ_processed++;
12759 /* Track the max number of EQEs processed in 1 intr */
12760 if (ecount > eq->EQ_max_eqe)
12761 eq->EQ_max_eqe = ecount;
12764 if (unlikely(ecount == 0)) {
12767 if (phba->intr_type == MSIX)
12768 /* MSI-X treated interrupt served as no EQ share INT */
12769 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12770 "9145 MSI-X interrupt with no EQE\n");
12772 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12773 "9146 ISR interrupt with no EQE\n");
12774 /* Non MSI-X treated on interrupt as EQ share INT */
12778 /* Always clear and re-arm the fast-path EQ */
12779 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
12780 return IRQ_HANDLED;
12784 * lpfc_sli4_hba_intr_handler - HBA interrupt handler to SLI-4 device
12785 * @irq: Interrupt number.
12786 * @dev_id: The device context pointer.
12788 * This function is directly called from the PCI layer as an interrupt
12789 * service routine when device with SLI-4 interface spec is enabled with
12790 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
12791 * ring event in the HBA. However, when the device is enabled with either
12792 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
12793 * device-level interrupt handler. When the PCI slot is in error recovery
12794 * or the HBA is undergoing initialization, the interrupt handler will not
12795 * process the interrupt. The SCSI FCP fast-path ring event are handled in
12796 * the intrrupt context. This function is called without any lock held.
12797 * It gets the hbalock to access and update SLI data structures. Note that,
12798 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
12799 * equal to that of FCP CQ index.
12801 * The link attention and ELS ring attention events are handled
12802 * by the worker thread. The interrupt handler signals the worker thread
12803 * and returns for these events. This function is called without any lock
12804 * held. It gets the hbalock to access and update SLI data structures.
12806 * This function returns IRQ_HANDLED when interrupt is handled else it
12807 * returns IRQ_NONE.
12810 lpfc_sli4_hba_intr_handler(int irq, void *dev_id)
12812 struct lpfc_hba *phba;
12813 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
12814 struct lpfc_queue *fpeq;
12815 struct lpfc_eqe *eqe;
12816 unsigned long iflag;
12820 /* Get the driver's phba structure from the dev_id */
12821 fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id;
12822 phba = fcp_eq_hdl->phba;
12823 fcp_eqidx = fcp_eq_hdl->idx;
12825 if (unlikely(!phba))
12827 if (unlikely(!phba->sli4_hba.hba_eq))
12830 /* Get to the EQ struct associated with this vector */
12831 fpeq = phba->sli4_hba.hba_eq[fcp_eqidx];
12832 if (unlikely(!fpeq))
12835 if (lpfc_fcp_look_ahead) {
12836 if (atomic_dec_and_test(&fcp_eq_hdl->fcp_eq_in_use))
12837 lpfc_sli4_eq_clr_intr(fpeq);
12839 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12844 /* Check device state for handling interrupt */
12845 if (unlikely(lpfc_intr_state_check(phba))) {
12846 fpeq->EQ_badstate++;
12847 /* Check again for link_state with lock held */
12848 spin_lock_irqsave(&phba->hbalock, iflag);
12849 if (phba->link_state < LPFC_LINK_DOWN)
12850 /* Flush, clear interrupt, and rearm the EQ */
12851 lpfc_sli4_eq_flush(phba, fpeq);
12852 spin_unlock_irqrestore(&phba->hbalock, iflag);
12853 if (lpfc_fcp_look_ahead)
12854 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12859 * Process all the event on FCP fast-path EQ
12861 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
12865 lpfc_sli4_hba_handle_eqe(phba, eqe, fcp_eqidx);
12866 if (!(++ecount % fpeq->entry_repost))
12867 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM);
12868 fpeq->EQ_processed++;
12871 /* Track the max number of EQEs processed in 1 intr */
12872 if (ecount > fpeq->EQ_max_eqe)
12873 fpeq->EQ_max_eqe = ecount;
12875 /* Always clear and re-arm the fast-path EQ */
12876 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
12878 if (unlikely(ecount == 0)) {
12879 fpeq->EQ_no_entry++;
12881 if (lpfc_fcp_look_ahead) {
12882 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12886 if (phba->intr_type == MSIX)
12887 /* MSI-X treated interrupt served as no EQ share INT */
12888 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12889 "0358 MSI-X interrupt with no EQE\n");
12891 /* Non MSI-X treated on interrupt as EQ share INT */
12895 if (lpfc_fcp_look_ahead)
12896 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12897 return IRQ_HANDLED;
12898 } /* lpfc_sli4_fp_intr_handler */
12901 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
12902 * @irq: Interrupt number.
12903 * @dev_id: The device context pointer.
12905 * This function is the device-level interrupt handler to device with SLI-4
12906 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
12907 * interrupt mode is enabled and there is an event in the HBA which requires
12908 * driver attention. This function invokes the slow-path interrupt attention
12909 * handling function and fast-path interrupt attention handling function in
12910 * turn to process the relevant HBA attention events. This function is called
12911 * without any lock held. It gets the hbalock to access and update SLI data
12914 * This function returns IRQ_HANDLED when interrupt is handled, else it
12915 * returns IRQ_NONE.
12918 lpfc_sli4_intr_handler(int irq, void *dev_id)
12920 struct lpfc_hba *phba;
12921 irqreturn_t hba_irq_rc;
12922 bool hba_handled = false;
12925 /* Get the driver's phba structure from the dev_id */
12926 phba = (struct lpfc_hba *)dev_id;
12928 if (unlikely(!phba))
12932 * Invoke fast-path host attention interrupt handling as appropriate.
12934 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
12935 hba_irq_rc = lpfc_sli4_hba_intr_handler(irq,
12936 &phba->sli4_hba.fcp_eq_hdl[fcp_eqidx]);
12937 if (hba_irq_rc == IRQ_HANDLED)
12938 hba_handled |= true;
12941 if (phba->cfg_fof) {
12942 hba_irq_rc = lpfc_sli4_fof_intr_handler(irq,
12943 &phba->sli4_hba.fcp_eq_hdl[0]);
12944 if (hba_irq_rc == IRQ_HANDLED)
12945 hba_handled |= true;
12948 return (hba_handled == true) ? IRQ_HANDLED : IRQ_NONE;
12949 } /* lpfc_sli4_intr_handler */
12952 * lpfc_sli4_queue_free - free a queue structure and associated memory
12953 * @queue: The queue structure to free.
12955 * This function frees a queue structure and the DMAable memory used for
12956 * the host resident queue. This function must be called after destroying the
12957 * queue on the HBA.
12960 lpfc_sli4_queue_free(struct lpfc_queue *queue)
12962 struct lpfc_dmabuf *dmabuf;
12967 while (!list_empty(&queue->page_list)) {
12968 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
12970 dma_free_coherent(&queue->phba->pcidev->dev, SLI4_PAGE_SIZE,
12971 dmabuf->virt, dmabuf->phys);
12979 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
12980 * @phba: The HBA that this queue is being created on.
12981 * @entry_size: The size of each queue entry for this queue.
12982 * @entry count: The number of entries that this queue will handle.
12984 * This function allocates a queue structure and the DMAable memory used for
12985 * the host resident queue. This function must be called before creating the
12986 * queue on the HBA.
12988 struct lpfc_queue *
12989 lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size,
12990 uint32_t entry_count)
12992 struct lpfc_queue *queue;
12993 struct lpfc_dmabuf *dmabuf;
12994 int x, total_qe_count;
12996 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12998 if (!phba->sli4_hba.pc_sli4_params.supported)
12999 hw_page_size = SLI4_PAGE_SIZE;
13001 queue = kzalloc(sizeof(struct lpfc_queue) +
13002 (sizeof(union sli4_qe) * entry_count), GFP_KERNEL);
13005 queue->page_count = (ALIGN(entry_size * entry_count,
13006 hw_page_size))/hw_page_size;
13007 INIT_LIST_HEAD(&queue->list);
13008 INIT_LIST_HEAD(&queue->page_list);
13009 INIT_LIST_HEAD(&queue->child_list);
13010 for (x = 0, total_qe_count = 0; x < queue->page_count; x++) {
13011 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
13014 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
13015 hw_page_size, &dmabuf->phys,
13017 if (!dmabuf->virt) {
13021 dmabuf->buffer_tag = x;
13022 list_add_tail(&dmabuf->list, &queue->page_list);
13023 /* initialize queue's entry array */
13024 dma_pointer = dmabuf->virt;
13025 for (; total_qe_count < entry_count &&
13026 dma_pointer < (hw_page_size + dmabuf->virt);
13027 total_qe_count++, dma_pointer += entry_size) {
13028 queue->qe[total_qe_count].address = dma_pointer;
13031 queue->entry_size = entry_size;
13032 queue->entry_count = entry_count;
13035 * entry_repost is calculated based on the number of entries in the
13036 * queue. This works out except for RQs. If buffers are NOT initially
13037 * posted for every RQE, entry_repost should be adjusted accordingly.
13039 queue->entry_repost = (entry_count >> 3);
13040 if (queue->entry_repost < LPFC_QUEUE_MIN_REPOST)
13041 queue->entry_repost = LPFC_QUEUE_MIN_REPOST;
13042 queue->phba = phba;
13046 lpfc_sli4_queue_free(queue);
13051 * lpfc_dual_chute_pci_bar_map - Map pci base address register to host memory
13052 * @phba: HBA structure that indicates port to create a queue on.
13053 * @pci_barset: PCI BAR set flag.
13055 * This function shall perform iomap of the specified PCI BAR address to host
13056 * memory address if not already done so and return it. The returned host
13057 * memory address can be NULL.
13059 static void __iomem *
13060 lpfc_dual_chute_pci_bar_map(struct lpfc_hba *phba, uint16_t pci_barset)
13065 switch (pci_barset) {
13066 case WQ_PCI_BAR_0_AND_1:
13067 return phba->pci_bar0_memmap_p;
13068 case WQ_PCI_BAR_2_AND_3:
13069 return phba->pci_bar2_memmap_p;
13070 case WQ_PCI_BAR_4_AND_5:
13071 return phba->pci_bar4_memmap_p;
13079 * lpfc_modify_fcp_eq_delay - Modify Delay Multiplier on FCP EQs
13080 * @phba: HBA structure that indicates port to create a queue on.
13081 * @startq: The starting FCP EQ to modify
13083 * This function sends an MODIFY_EQ_DELAY mailbox command to the HBA.
13085 * The @phba struct is used to send mailbox command to HBA. The @startq
13086 * is used to get the starting FCP EQ to change.
13087 * This function is asynchronous and will wait for the mailbox
13088 * command to finish before continuing.
13090 * On success this function will return a zero. If unable to allocate enough
13091 * memory this function will return -ENOMEM. If the queue create mailbox command
13092 * fails this function will return -ENXIO.
13095 lpfc_modify_fcp_eq_delay(struct lpfc_hba *phba, uint32_t startq)
13097 struct lpfc_mbx_modify_eq_delay *eq_delay;
13098 LPFC_MBOXQ_t *mbox;
13099 struct lpfc_queue *eq;
13100 int cnt, rc, length, status = 0;
13101 uint32_t shdr_status, shdr_add_status;
13104 union lpfc_sli4_cfg_shdr *shdr;
13107 if (startq >= phba->cfg_fcp_io_channel)
13110 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13113 length = (sizeof(struct lpfc_mbx_modify_eq_delay) -
13114 sizeof(struct lpfc_sli4_cfg_mhdr));
13115 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13116 LPFC_MBOX_OPCODE_MODIFY_EQ_DELAY,
13117 length, LPFC_SLI4_MBX_EMBED);
13118 eq_delay = &mbox->u.mqe.un.eq_delay;
13120 /* Calculate delay multiper from maximum interrupt per second */
13121 result = phba->cfg_fcp_imax / phba->cfg_fcp_io_channel;
13122 if (result > LPFC_DMULT_CONST)
13125 dmult = LPFC_DMULT_CONST/result - 1;
13128 for (fcp_eqidx = startq; fcp_eqidx < phba->cfg_fcp_io_channel;
13130 eq = phba->sli4_hba.hba_eq[fcp_eqidx];
13133 eq_delay->u.request.eq[cnt].eq_id = eq->queue_id;
13134 eq_delay->u.request.eq[cnt].phase = 0;
13135 eq_delay->u.request.eq[cnt].delay_multi = dmult;
13137 if (cnt >= LPFC_MAX_EQ_DELAY)
13140 eq_delay->u.request.num_eq = cnt;
13142 mbox->vport = phba->pport;
13143 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13144 mbox->context1 = NULL;
13145 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13146 shdr = (union lpfc_sli4_cfg_shdr *) &eq_delay->header.cfg_shdr;
13147 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13148 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13149 if (shdr_status || shdr_add_status || rc) {
13150 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13151 "2512 MODIFY_EQ_DELAY mailbox failed with "
13152 "status x%x add_status x%x, mbx status x%x\n",
13153 shdr_status, shdr_add_status, rc);
13156 mempool_free(mbox, phba->mbox_mem_pool);
13161 * lpfc_eq_create - Create an Event Queue on the HBA
13162 * @phba: HBA structure that indicates port to create a queue on.
13163 * @eq: The queue structure to use to create the event queue.
13164 * @imax: The maximum interrupt per second limit.
13166 * This function creates an event queue, as detailed in @eq, on a port,
13167 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
13169 * The @phba struct is used to send mailbox command to HBA. The @eq struct
13170 * is used to get the entry count and entry size that are necessary to
13171 * determine the number of pages to allocate and use for this queue. This
13172 * function will send the EQ_CREATE mailbox command to the HBA to setup the
13173 * event queue. This function is asynchronous and will wait for the mailbox
13174 * command to finish before continuing.
13176 * On success this function will return a zero. If unable to allocate enough
13177 * memory this function will return -ENOMEM. If the queue create mailbox command
13178 * fails this function will return -ENXIO.
13181 lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint32_t imax)
13183 struct lpfc_mbx_eq_create *eq_create;
13184 LPFC_MBOXQ_t *mbox;
13185 int rc, length, status = 0;
13186 struct lpfc_dmabuf *dmabuf;
13187 uint32_t shdr_status, shdr_add_status;
13188 union lpfc_sli4_cfg_shdr *shdr;
13190 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
13192 /* sanity check on queue memory */
13195 if (!phba->sli4_hba.pc_sli4_params.supported)
13196 hw_page_size = SLI4_PAGE_SIZE;
13198 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13201 length = (sizeof(struct lpfc_mbx_eq_create) -
13202 sizeof(struct lpfc_sli4_cfg_mhdr));
13203 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13204 LPFC_MBOX_OPCODE_EQ_CREATE,
13205 length, LPFC_SLI4_MBX_EMBED);
13206 eq_create = &mbox->u.mqe.un.eq_create;
13207 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
13209 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
13211 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
13212 /* don't setup delay multiplier using EQ_CREATE */
13214 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
13216 switch (eq->entry_count) {
13218 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13219 "0360 Unsupported EQ count. (%d)\n",
13221 if (eq->entry_count < 256)
13223 /* otherwise default to smallest count (drop through) */
13225 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
13229 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
13233 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
13237 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
13241 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
13245 list_for_each_entry(dmabuf, &eq->page_list, list) {
13246 memset(dmabuf->virt, 0, hw_page_size);
13247 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13248 putPaddrLow(dmabuf->phys);
13249 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13250 putPaddrHigh(dmabuf->phys);
13252 mbox->vport = phba->pport;
13253 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13254 mbox->context1 = NULL;
13255 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13256 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
13257 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13258 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13259 if (shdr_status || shdr_add_status || rc) {
13260 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13261 "2500 EQ_CREATE mailbox failed with "
13262 "status x%x add_status x%x, mbx status x%x\n",
13263 shdr_status, shdr_add_status, rc);
13266 eq->type = LPFC_EQ;
13267 eq->subtype = LPFC_NONE;
13268 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
13269 if (eq->queue_id == 0xFFFF)
13271 eq->host_index = 0;
13274 mempool_free(mbox, phba->mbox_mem_pool);
13279 * lpfc_cq_create - Create a Completion Queue on the HBA
13280 * @phba: HBA structure that indicates port to create a queue on.
13281 * @cq: The queue structure to use to create the completion queue.
13282 * @eq: The event queue to bind this completion queue to.
13284 * This function creates a completion queue, as detailed in @wq, on a port,
13285 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
13287 * The @phba struct is used to send mailbox command to HBA. The @cq struct
13288 * is used to get the entry count and entry size that are necessary to
13289 * determine the number of pages to allocate and use for this queue. The @eq
13290 * is used to indicate which event queue to bind this completion queue to. This
13291 * function will send the CQ_CREATE mailbox command to the HBA to setup the
13292 * completion queue. This function is asynchronous and will wait for the mailbox
13293 * command to finish before continuing.
13295 * On success this function will return a zero. If unable to allocate enough
13296 * memory this function will return -ENOMEM. If the queue create mailbox command
13297 * fails this function will return -ENXIO.
13300 lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
13301 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
13303 struct lpfc_mbx_cq_create *cq_create;
13304 struct lpfc_dmabuf *dmabuf;
13305 LPFC_MBOXQ_t *mbox;
13306 int rc, length, status = 0;
13307 uint32_t shdr_status, shdr_add_status;
13308 union lpfc_sli4_cfg_shdr *shdr;
13309 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
13311 /* sanity check on queue memory */
13314 if (!phba->sli4_hba.pc_sli4_params.supported)
13315 hw_page_size = SLI4_PAGE_SIZE;
13317 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13320 length = (sizeof(struct lpfc_mbx_cq_create) -
13321 sizeof(struct lpfc_sli4_cfg_mhdr));
13322 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13323 LPFC_MBOX_OPCODE_CQ_CREATE,
13324 length, LPFC_SLI4_MBX_EMBED);
13325 cq_create = &mbox->u.mqe.un.cq_create;
13326 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
13327 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
13329 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
13330 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
13331 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13332 phba->sli4_hba.pc_sli4_params.cqv);
13333 if (phba->sli4_hba.pc_sli4_params.cqv == LPFC_Q_CREATE_VERSION_2) {
13334 /* FW only supports 1. Should be PAGE_SIZE/SLI4_PAGE_SIZE */
13335 bf_set(lpfc_mbx_cq_create_page_size, &cq_create->u.request, 1);
13336 bf_set(lpfc_cq_eq_id_2, &cq_create->u.request.context,
13339 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context,
13342 switch (cq->entry_count) {
13344 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13345 "0361 Unsupported CQ count. (%d)\n",
13347 if (cq->entry_count < 256) {
13351 /* otherwise default to smallest count (drop through) */
13353 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
13357 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
13361 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
13365 list_for_each_entry(dmabuf, &cq->page_list, list) {
13366 memset(dmabuf->virt, 0, hw_page_size);
13367 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13368 putPaddrLow(dmabuf->phys);
13369 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13370 putPaddrHigh(dmabuf->phys);
13372 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13374 /* The IOCTL status is embedded in the mailbox subheader. */
13375 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13376 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13377 if (shdr_status || shdr_add_status || rc) {
13378 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13379 "2501 CQ_CREATE mailbox failed with "
13380 "status x%x add_status x%x, mbx status x%x\n",
13381 shdr_status, shdr_add_status, rc);
13385 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
13386 if (cq->queue_id == 0xFFFF) {
13390 /* link the cq onto the parent eq child list */
13391 list_add_tail(&cq->list, &eq->child_list);
13392 /* Set up completion queue's type and subtype */
13394 cq->subtype = subtype;
13395 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
13396 cq->assoc_qid = eq->queue_id;
13397 cq->host_index = 0;
13401 mempool_free(mbox, phba->mbox_mem_pool);
13406 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
13407 * @phba: HBA structure that indicates port to create a queue on.
13408 * @mq: The queue structure to use to create the mailbox queue.
13409 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
13410 * @cq: The completion queue to associate with this cq.
13412 * This function provides failback (fb) functionality when the
13413 * mq_create_ext fails on older FW generations. It's purpose is identical
13414 * to mq_create_ext otherwise.
13416 * This routine cannot fail as all attributes were previously accessed and
13417 * initialized in mq_create_ext.
13420 lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq,
13421 LPFC_MBOXQ_t *mbox, struct lpfc_queue *cq)
13423 struct lpfc_mbx_mq_create *mq_create;
13424 struct lpfc_dmabuf *dmabuf;
13427 length = (sizeof(struct lpfc_mbx_mq_create) -
13428 sizeof(struct lpfc_sli4_cfg_mhdr));
13429 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13430 LPFC_MBOX_OPCODE_MQ_CREATE,
13431 length, LPFC_SLI4_MBX_EMBED);
13432 mq_create = &mbox->u.mqe.un.mq_create;
13433 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
13435 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
13437 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
13438 switch (mq->entry_count) {
13440 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
13441 LPFC_MQ_RING_SIZE_16);
13444 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
13445 LPFC_MQ_RING_SIZE_32);
13448 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
13449 LPFC_MQ_RING_SIZE_64);
13452 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
13453 LPFC_MQ_RING_SIZE_128);
13456 list_for_each_entry(dmabuf, &mq->page_list, list) {
13457 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13458 putPaddrLow(dmabuf->phys);
13459 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13460 putPaddrHigh(dmabuf->phys);
13465 * lpfc_mq_create - Create a mailbox Queue on the HBA
13466 * @phba: HBA structure that indicates port to create a queue on.
13467 * @mq: The queue structure to use to create the mailbox queue.
13468 * @cq: The completion queue to associate with this cq.
13469 * @subtype: The queue's subtype.
13471 * This function creates a mailbox queue, as detailed in @mq, on a port,
13472 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
13474 * The @phba struct is used to send mailbox command to HBA. The @cq struct
13475 * is used to get the entry count and entry size that are necessary to
13476 * determine the number of pages to allocate and use for this queue. This
13477 * function will send the MQ_CREATE mailbox command to the HBA to setup the
13478 * mailbox queue. This function is asynchronous and will wait for the mailbox
13479 * command to finish before continuing.
13481 * On success this function will return a zero. If unable to allocate enough
13482 * memory this function will return -ENOMEM. If the queue create mailbox command
13483 * fails this function will return -ENXIO.
13486 lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
13487 struct lpfc_queue *cq, uint32_t subtype)
13489 struct lpfc_mbx_mq_create *mq_create;
13490 struct lpfc_mbx_mq_create_ext *mq_create_ext;
13491 struct lpfc_dmabuf *dmabuf;
13492 LPFC_MBOXQ_t *mbox;
13493 int rc, length, status = 0;
13494 uint32_t shdr_status, shdr_add_status;
13495 union lpfc_sli4_cfg_shdr *shdr;
13496 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
13498 /* sanity check on queue memory */
13501 if (!phba->sli4_hba.pc_sli4_params.supported)
13502 hw_page_size = SLI4_PAGE_SIZE;
13504 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13507 length = (sizeof(struct lpfc_mbx_mq_create_ext) -
13508 sizeof(struct lpfc_sli4_cfg_mhdr));
13509 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13510 LPFC_MBOX_OPCODE_MQ_CREATE_EXT,
13511 length, LPFC_SLI4_MBX_EMBED);
13513 mq_create_ext = &mbox->u.mqe.un.mq_create_ext;
13514 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr;
13515 bf_set(lpfc_mbx_mq_create_ext_num_pages,
13516 &mq_create_ext->u.request, mq->page_count);
13517 bf_set(lpfc_mbx_mq_create_ext_async_evt_link,
13518 &mq_create_ext->u.request, 1);
13519 bf_set(lpfc_mbx_mq_create_ext_async_evt_fip,
13520 &mq_create_ext->u.request, 1);
13521 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5,
13522 &mq_create_ext->u.request, 1);
13523 bf_set(lpfc_mbx_mq_create_ext_async_evt_fc,
13524 &mq_create_ext->u.request, 1);
13525 bf_set(lpfc_mbx_mq_create_ext_async_evt_sli,
13526 &mq_create_ext->u.request, 1);
13527 bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1);
13528 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13529 phba->sli4_hba.pc_sli4_params.mqv);
13530 if (phba->sli4_hba.pc_sli4_params.mqv == LPFC_Q_CREATE_VERSION_1)
13531 bf_set(lpfc_mbx_mq_create_ext_cq_id, &mq_create_ext->u.request,
13534 bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context,
13536 switch (mq->entry_count) {
13538 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13539 "0362 Unsupported MQ count. (%d)\n",
13541 if (mq->entry_count < 16) {
13545 /* otherwise default to smallest count (drop through) */
13547 bf_set(lpfc_mq_context_ring_size,
13548 &mq_create_ext->u.request.context,
13549 LPFC_MQ_RING_SIZE_16);
13552 bf_set(lpfc_mq_context_ring_size,
13553 &mq_create_ext->u.request.context,
13554 LPFC_MQ_RING_SIZE_32);
13557 bf_set(lpfc_mq_context_ring_size,
13558 &mq_create_ext->u.request.context,
13559 LPFC_MQ_RING_SIZE_64);
13562 bf_set(lpfc_mq_context_ring_size,
13563 &mq_create_ext->u.request.context,
13564 LPFC_MQ_RING_SIZE_128);
13567 list_for_each_entry(dmabuf, &mq->page_list, list) {
13568 memset(dmabuf->virt, 0, hw_page_size);
13569 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_lo =
13570 putPaddrLow(dmabuf->phys);
13571 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_hi =
13572 putPaddrHigh(dmabuf->phys);
13574 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13575 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
13576 &mq_create_ext->u.response);
13577 if (rc != MBX_SUCCESS) {
13578 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13579 "2795 MQ_CREATE_EXT failed with "
13580 "status x%x. Failback to MQ_CREATE.\n",
13582 lpfc_mq_create_fb_init(phba, mq, mbox, cq);
13583 mq_create = &mbox->u.mqe.un.mq_create;
13584 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13585 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
13586 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
13587 &mq_create->u.response);
13590 /* The IOCTL status is embedded in the mailbox subheader. */
13591 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13592 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13593 if (shdr_status || shdr_add_status || rc) {
13594 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13595 "2502 MQ_CREATE mailbox failed with "
13596 "status x%x add_status x%x, mbx status x%x\n",
13597 shdr_status, shdr_add_status, rc);
13601 if (mq->queue_id == 0xFFFF) {
13605 mq->type = LPFC_MQ;
13606 mq->assoc_qid = cq->queue_id;
13607 mq->subtype = subtype;
13608 mq->host_index = 0;
13611 /* link the mq onto the parent cq child list */
13612 list_add_tail(&mq->list, &cq->child_list);
13614 mempool_free(mbox, phba->mbox_mem_pool);
13619 * lpfc_wq_create - Create a Work Queue on the HBA
13620 * @phba: HBA structure that indicates port to create a queue on.
13621 * @wq: The queue structure to use to create the work queue.
13622 * @cq: The completion queue to bind this work queue to.
13623 * @subtype: The subtype of the work queue indicating its functionality.
13625 * This function creates a work queue, as detailed in @wq, on a port, described
13626 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
13628 * The @phba struct is used to send mailbox command to HBA. The @wq struct
13629 * is used to get the entry count and entry size that are necessary to
13630 * determine the number of pages to allocate and use for this queue. The @cq
13631 * is used to indicate which completion queue to bind this work queue to. This
13632 * function will send the WQ_CREATE mailbox command to the HBA to setup the
13633 * work queue. This function is asynchronous and will wait for the mailbox
13634 * command to finish before continuing.
13636 * On success this function will return a zero. If unable to allocate enough
13637 * memory this function will return -ENOMEM. If the queue create mailbox command
13638 * fails this function will return -ENXIO.
13641 lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
13642 struct lpfc_queue *cq, uint32_t subtype)
13644 struct lpfc_mbx_wq_create *wq_create;
13645 struct lpfc_dmabuf *dmabuf;
13646 LPFC_MBOXQ_t *mbox;
13647 int rc, length, status = 0;
13648 uint32_t shdr_status, shdr_add_status;
13649 union lpfc_sli4_cfg_shdr *shdr;
13650 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
13651 struct dma_address *page;
13652 void __iomem *bar_memmap_p;
13653 uint32_t db_offset;
13654 uint16_t pci_barset;
13656 /* sanity check on queue memory */
13659 if (!phba->sli4_hba.pc_sli4_params.supported)
13660 hw_page_size = SLI4_PAGE_SIZE;
13662 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13665 length = (sizeof(struct lpfc_mbx_wq_create) -
13666 sizeof(struct lpfc_sli4_cfg_mhdr));
13667 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13668 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
13669 length, LPFC_SLI4_MBX_EMBED);
13670 wq_create = &mbox->u.mqe.un.wq_create;
13671 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
13672 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
13674 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
13677 /* wqv is the earliest version supported, NOT the latest */
13678 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13679 phba->sli4_hba.pc_sli4_params.wqv);
13681 switch (phba->sli4_hba.pc_sli4_params.wqv) {
13682 case LPFC_Q_CREATE_VERSION_0:
13683 switch (wq->entry_size) {
13686 /* Nothing to do, version 0 ONLY supports 64 byte */
13687 page = wq_create->u.request.page;
13690 if (!(phba->sli4_hba.pc_sli4_params.wqsize &
13691 LPFC_WQ_SZ128_SUPPORT)) {
13695 /* If we get here the HBA MUST also support V1 and
13698 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13699 LPFC_Q_CREATE_VERSION_1);
13701 bf_set(lpfc_mbx_wq_create_wqe_count,
13702 &wq_create->u.request_1, wq->entry_count);
13703 bf_set(lpfc_mbx_wq_create_wqe_size,
13704 &wq_create->u.request_1,
13705 LPFC_WQ_WQE_SIZE_128);
13706 bf_set(lpfc_mbx_wq_create_page_size,
13707 &wq_create->u.request_1,
13708 LPFC_WQ_PAGE_SIZE_4096);
13709 page = wq_create->u.request_1.page;
13713 case LPFC_Q_CREATE_VERSION_1:
13714 bf_set(lpfc_mbx_wq_create_wqe_count, &wq_create->u.request_1,
13716 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13717 LPFC_Q_CREATE_VERSION_1);
13719 switch (wq->entry_size) {
13722 bf_set(lpfc_mbx_wq_create_wqe_size,
13723 &wq_create->u.request_1,
13724 LPFC_WQ_WQE_SIZE_64);
13727 if (!(phba->sli4_hba.pc_sli4_params.wqsize &
13728 LPFC_WQ_SZ128_SUPPORT)) {
13732 bf_set(lpfc_mbx_wq_create_wqe_size,
13733 &wq_create->u.request_1,
13734 LPFC_WQ_WQE_SIZE_128);
13737 bf_set(lpfc_mbx_wq_create_page_size,
13738 &wq_create->u.request_1,
13739 LPFC_WQ_PAGE_SIZE_4096);
13740 page = wq_create->u.request_1.page;
13747 list_for_each_entry(dmabuf, &wq->page_list, list) {
13748 memset(dmabuf->virt, 0, hw_page_size);
13749 page[dmabuf->buffer_tag].addr_lo = putPaddrLow(dmabuf->phys);
13750 page[dmabuf->buffer_tag].addr_hi = putPaddrHigh(dmabuf->phys);
13753 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
13754 bf_set(lpfc_mbx_wq_create_dua, &wq_create->u.request, 1);
13756 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13757 /* The IOCTL status is embedded in the mailbox subheader. */
13758 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13759 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13760 if (shdr_status || shdr_add_status || rc) {
13761 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13762 "2503 WQ_CREATE mailbox failed with "
13763 "status x%x add_status x%x, mbx status x%x\n",
13764 shdr_status, shdr_add_status, rc);
13768 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response);
13769 if (wq->queue_id == 0xFFFF) {
13773 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
13774 wq->db_format = bf_get(lpfc_mbx_wq_create_db_format,
13775 &wq_create->u.response);
13776 if ((wq->db_format != LPFC_DB_LIST_FORMAT) &&
13777 (wq->db_format != LPFC_DB_RING_FORMAT)) {
13778 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13779 "3265 WQ[%d] doorbell format not "
13780 "supported: x%x\n", wq->queue_id,
13785 pci_barset = bf_get(lpfc_mbx_wq_create_bar_set,
13786 &wq_create->u.response);
13787 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
13788 if (!bar_memmap_p) {
13789 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13790 "3263 WQ[%d] failed to memmap pci "
13791 "barset:x%x\n", wq->queue_id,
13796 db_offset = wq_create->u.response.doorbell_offset;
13797 if ((db_offset != LPFC_ULP0_WQ_DOORBELL) &&
13798 (db_offset != LPFC_ULP1_WQ_DOORBELL)) {
13799 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13800 "3252 WQ[%d] doorbell offset not "
13801 "supported: x%x\n", wq->queue_id,
13806 wq->db_regaddr = bar_memmap_p + db_offset;
13807 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13808 "3264 WQ[%d]: barset:x%x, offset:x%x, "
13809 "format:x%x\n", wq->queue_id, pci_barset,
13810 db_offset, wq->db_format);
13812 wq->db_format = LPFC_DB_LIST_FORMAT;
13813 wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
13815 wq->type = LPFC_WQ;
13816 wq->assoc_qid = cq->queue_id;
13817 wq->subtype = subtype;
13818 wq->host_index = 0;
13820 wq->entry_repost = LPFC_RELEASE_NOTIFICATION_INTERVAL;
13822 /* link the wq onto the parent cq child list */
13823 list_add_tail(&wq->list, &cq->child_list);
13825 mempool_free(mbox, phba->mbox_mem_pool);
13830 * lpfc_rq_adjust_repost - Adjust entry_repost for an RQ
13831 * @phba: HBA structure that indicates port to create a queue on.
13832 * @rq: The queue structure to use for the receive queue.
13833 * @qno: The associated HBQ number
13836 * For SLI4 we need to adjust the RQ repost value based on
13837 * the number of buffers that are initially posted to the RQ.
13840 lpfc_rq_adjust_repost(struct lpfc_hba *phba, struct lpfc_queue *rq, int qno)
13844 /* sanity check on queue memory */
13847 cnt = lpfc_hbq_defs[qno]->entry_count;
13849 /* Recalc repost for RQs based on buffers initially posted */
13851 if (cnt < LPFC_QUEUE_MIN_REPOST)
13852 cnt = LPFC_QUEUE_MIN_REPOST;
13854 rq->entry_repost = cnt;
13858 * lpfc_rq_create - Create a Receive Queue on the HBA
13859 * @phba: HBA structure that indicates port to create a queue on.
13860 * @hrq: The queue structure to use to create the header receive queue.
13861 * @drq: The queue structure to use to create the data receive queue.
13862 * @cq: The completion queue to bind this work queue to.
13864 * This function creates a receive buffer queue pair , as detailed in @hrq and
13865 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
13868 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
13869 * struct is used to get the entry count that is necessary to determine the
13870 * number of pages to use for this queue. The @cq is used to indicate which
13871 * completion queue to bind received buffers that are posted to these queues to.
13872 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
13873 * receive queue pair. This function is asynchronous and will wait for the
13874 * mailbox command to finish before continuing.
13876 * On success this function will return a zero. If unable to allocate enough
13877 * memory this function will return -ENOMEM. If the queue create mailbox command
13878 * fails this function will return -ENXIO.
13881 lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
13882 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
13884 struct lpfc_mbx_rq_create *rq_create;
13885 struct lpfc_dmabuf *dmabuf;
13886 LPFC_MBOXQ_t *mbox;
13887 int rc, length, status = 0;
13888 uint32_t shdr_status, shdr_add_status;
13889 union lpfc_sli4_cfg_shdr *shdr;
13890 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
13891 void __iomem *bar_memmap_p;
13892 uint32_t db_offset;
13893 uint16_t pci_barset;
13895 /* sanity check on queue memory */
13896 if (!hrq || !drq || !cq)
13898 if (!phba->sli4_hba.pc_sli4_params.supported)
13899 hw_page_size = SLI4_PAGE_SIZE;
13901 if (hrq->entry_count != drq->entry_count)
13903 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13906 length = (sizeof(struct lpfc_mbx_rq_create) -
13907 sizeof(struct lpfc_sli4_cfg_mhdr));
13908 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13909 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
13910 length, LPFC_SLI4_MBX_EMBED);
13911 rq_create = &mbox->u.mqe.un.rq_create;
13912 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
13913 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13914 phba->sli4_hba.pc_sli4_params.rqv);
13915 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
13916 bf_set(lpfc_rq_context_rqe_count_1,
13917 &rq_create->u.request.context,
13919 rq_create->u.request.context.buffer_size = LPFC_HDR_BUF_SIZE;
13920 bf_set(lpfc_rq_context_rqe_size,
13921 &rq_create->u.request.context,
13923 bf_set(lpfc_rq_context_page_size,
13924 &rq_create->u.request.context,
13925 LPFC_RQ_PAGE_SIZE_4096);
13927 switch (hrq->entry_count) {
13929 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13930 "2535 Unsupported RQ count. (%d)\n",
13932 if (hrq->entry_count < 512) {
13936 /* otherwise default to smallest count (drop through) */
13938 bf_set(lpfc_rq_context_rqe_count,
13939 &rq_create->u.request.context,
13940 LPFC_RQ_RING_SIZE_512);
13943 bf_set(lpfc_rq_context_rqe_count,
13944 &rq_create->u.request.context,
13945 LPFC_RQ_RING_SIZE_1024);
13948 bf_set(lpfc_rq_context_rqe_count,
13949 &rq_create->u.request.context,
13950 LPFC_RQ_RING_SIZE_2048);
13953 bf_set(lpfc_rq_context_rqe_count,
13954 &rq_create->u.request.context,
13955 LPFC_RQ_RING_SIZE_4096);
13958 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
13959 LPFC_HDR_BUF_SIZE);
13961 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
13963 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
13965 list_for_each_entry(dmabuf, &hrq->page_list, list) {
13966 memset(dmabuf->virt, 0, hw_page_size);
13967 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13968 putPaddrLow(dmabuf->phys);
13969 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13970 putPaddrHigh(dmabuf->phys);
13972 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
13973 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
13975 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13976 /* The IOCTL status is embedded in the mailbox subheader. */
13977 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13978 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13979 if (shdr_status || shdr_add_status || rc) {
13980 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13981 "2504 RQ_CREATE mailbox failed with "
13982 "status x%x add_status x%x, mbx status x%x\n",
13983 shdr_status, shdr_add_status, rc);
13987 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
13988 if (hrq->queue_id == 0xFFFF) {
13993 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
13994 hrq->db_format = bf_get(lpfc_mbx_rq_create_db_format,
13995 &rq_create->u.response);
13996 if ((hrq->db_format != LPFC_DB_LIST_FORMAT) &&
13997 (hrq->db_format != LPFC_DB_RING_FORMAT)) {
13998 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13999 "3262 RQ [%d] doorbell format not "
14000 "supported: x%x\n", hrq->queue_id,
14006 pci_barset = bf_get(lpfc_mbx_rq_create_bar_set,
14007 &rq_create->u.response);
14008 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
14009 if (!bar_memmap_p) {
14010 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14011 "3269 RQ[%d] failed to memmap pci "
14012 "barset:x%x\n", hrq->queue_id,
14018 db_offset = rq_create->u.response.doorbell_offset;
14019 if ((db_offset != LPFC_ULP0_RQ_DOORBELL) &&
14020 (db_offset != LPFC_ULP1_RQ_DOORBELL)) {
14021 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14022 "3270 RQ[%d] doorbell offset not "
14023 "supported: x%x\n", hrq->queue_id,
14028 hrq->db_regaddr = bar_memmap_p + db_offset;
14029 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14030 "3266 RQ[qid:%d]: barset:x%x, offset:x%x, "
14031 "format:x%x\n", hrq->queue_id, pci_barset,
14032 db_offset, hrq->db_format);
14034 hrq->db_format = LPFC_DB_RING_FORMAT;
14035 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
14037 hrq->type = LPFC_HRQ;
14038 hrq->assoc_qid = cq->queue_id;
14039 hrq->subtype = subtype;
14040 hrq->host_index = 0;
14041 hrq->hba_index = 0;
14043 /* now create the data queue */
14044 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14045 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
14046 length, LPFC_SLI4_MBX_EMBED);
14047 bf_set(lpfc_mbox_hdr_version, &shdr->request,
14048 phba->sli4_hba.pc_sli4_params.rqv);
14049 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
14050 bf_set(lpfc_rq_context_rqe_count_1,
14051 &rq_create->u.request.context, hrq->entry_count);
14052 rq_create->u.request.context.buffer_size = LPFC_DATA_BUF_SIZE;
14053 bf_set(lpfc_rq_context_rqe_size, &rq_create->u.request.context,
14055 bf_set(lpfc_rq_context_page_size, &rq_create->u.request.context,
14056 (PAGE_SIZE/SLI4_PAGE_SIZE));
14058 switch (drq->entry_count) {
14060 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14061 "2536 Unsupported RQ count. (%d)\n",
14063 if (drq->entry_count < 512) {
14067 /* otherwise default to smallest count (drop through) */
14069 bf_set(lpfc_rq_context_rqe_count,
14070 &rq_create->u.request.context,
14071 LPFC_RQ_RING_SIZE_512);
14074 bf_set(lpfc_rq_context_rqe_count,
14075 &rq_create->u.request.context,
14076 LPFC_RQ_RING_SIZE_1024);
14079 bf_set(lpfc_rq_context_rqe_count,
14080 &rq_create->u.request.context,
14081 LPFC_RQ_RING_SIZE_2048);
14084 bf_set(lpfc_rq_context_rqe_count,
14085 &rq_create->u.request.context,
14086 LPFC_RQ_RING_SIZE_4096);
14089 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
14090 LPFC_DATA_BUF_SIZE);
14092 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
14094 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
14096 list_for_each_entry(dmabuf, &drq->page_list, list) {
14097 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
14098 putPaddrLow(dmabuf->phys);
14099 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
14100 putPaddrHigh(dmabuf->phys);
14102 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
14103 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
14104 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14105 /* The IOCTL status is embedded in the mailbox subheader. */
14106 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
14107 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14108 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14109 if (shdr_status || shdr_add_status || rc) {
14113 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
14114 if (drq->queue_id == 0xFFFF) {
14118 drq->type = LPFC_DRQ;
14119 drq->assoc_qid = cq->queue_id;
14120 drq->subtype = subtype;
14121 drq->host_index = 0;
14122 drq->hba_index = 0;
14124 /* link the header and data RQs onto the parent cq child list */
14125 list_add_tail(&hrq->list, &cq->child_list);
14126 list_add_tail(&drq->list, &cq->child_list);
14129 mempool_free(mbox, phba->mbox_mem_pool);
14134 * lpfc_eq_destroy - Destroy an event Queue on the HBA
14135 * @eq: The queue structure associated with the queue to destroy.
14137 * This function destroys a queue, as detailed in @eq by sending an mailbox
14138 * command, specific to the type of queue, to the HBA.
14140 * The @eq struct is used to get the queue ID of the queue to destroy.
14142 * On success this function will return a zero. If the queue destroy mailbox
14143 * command fails this function will return -ENXIO.
14146 lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
14148 LPFC_MBOXQ_t *mbox;
14149 int rc, length, status = 0;
14150 uint32_t shdr_status, shdr_add_status;
14151 union lpfc_sli4_cfg_shdr *shdr;
14153 /* sanity check on queue memory */
14156 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
14159 length = (sizeof(struct lpfc_mbx_eq_destroy) -
14160 sizeof(struct lpfc_sli4_cfg_mhdr));
14161 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14162 LPFC_MBOX_OPCODE_EQ_DESTROY,
14163 length, LPFC_SLI4_MBX_EMBED);
14164 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
14166 mbox->vport = eq->phba->pport;
14167 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14169 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
14170 /* The IOCTL status is embedded in the mailbox subheader. */
14171 shdr = (union lpfc_sli4_cfg_shdr *)
14172 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
14173 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14174 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14175 if (shdr_status || shdr_add_status || rc) {
14176 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14177 "2505 EQ_DESTROY mailbox failed with "
14178 "status x%x add_status x%x, mbx status x%x\n",
14179 shdr_status, shdr_add_status, rc);
14183 /* Remove eq from any list */
14184 list_del_init(&eq->list);
14185 mempool_free(mbox, eq->phba->mbox_mem_pool);
14190 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
14191 * @cq: The queue structure associated with the queue to destroy.
14193 * This function destroys a queue, as detailed in @cq by sending an mailbox
14194 * command, specific to the type of queue, to the HBA.
14196 * The @cq struct is used to get the queue ID of the queue to destroy.
14198 * On success this function will return a zero. If the queue destroy mailbox
14199 * command fails this function will return -ENXIO.
14202 lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
14204 LPFC_MBOXQ_t *mbox;
14205 int rc, length, status = 0;
14206 uint32_t shdr_status, shdr_add_status;
14207 union lpfc_sli4_cfg_shdr *shdr;
14209 /* sanity check on queue memory */
14212 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
14215 length = (sizeof(struct lpfc_mbx_cq_destroy) -
14216 sizeof(struct lpfc_sli4_cfg_mhdr));
14217 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14218 LPFC_MBOX_OPCODE_CQ_DESTROY,
14219 length, LPFC_SLI4_MBX_EMBED);
14220 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
14222 mbox->vport = cq->phba->pport;
14223 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14224 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
14225 /* The IOCTL status is embedded in the mailbox subheader. */
14226 shdr = (union lpfc_sli4_cfg_shdr *)
14227 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
14228 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14229 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14230 if (shdr_status || shdr_add_status || rc) {
14231 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14232 "2506 CQ_DESTROY mailbox failed with "
14233 "status x%x add_status x%x, mbx status x%x\n",
14234 shdr_status, shdr_add_status, rc);
14237 /* Remove cq from any list */
14238 list_del_init(&cq->list);
14239 mempool_free(mbox, cq->phba->mbox_mem_pool);
14244 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
14245 * @qm: The queue structure associated with the queue to destroy.
14247 * This function destroys a queue, as detailed in @mq by sending an mailbox
14248 * command, specific to the type of queue, to the HBA.
14250 * The @mq struct is used to get the queue ID of the queue to destroy.
14252 * On success this function will return a zero. If the queue destroy mailbox
14253 * command fails this function will return -ENXIO.
14256 lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
14258 LPFC_MBOXQ_t *mbox;
14259 int rc, length, status = 0;
14260 uint32_t shdr_status, shdr_add_status;
14261 union lpfc_sli4_cfg_shdr *shdr;
14263 /* sanity check on queue memory */
14266 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
14269 length = (sizeof(struct lpfc_mbx_mq_destroy) -
14270 sizeof(struct lpfc_sli4_cfg_mhdr));
14271 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14272 LPFC_MBOX_OPCODE_MQ_DESTROY,
14273 length, LPFC_SLI4_MBX_EMBED);
14274 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
14276 mbox->vport = mq->phba->pport;
14277 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14278 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
14279 /* The IOCTL status is embedded in the mailbox subheader. */
14280 shdr = (union lpfc_sli4_cfg_shdr *)
14281 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
14282 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14283 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14284 if (shdr_status || shdr_add_status || rc) {
14285 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14286 "2507 MQ_DESTROY mailbox failed with "
14287 "status x%x add_status x%x, mbx status x%x\n",
14288 shdr_status, shdr_add_status, rc);
14291 /* Remove mq from any list */
14292 list_del_init(&mq->list);
14293 mempool_free(mbox, mq->phba->mbox_mem_pool);
14298 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
14299 * @wq: The queue structure associated with the queue to destroy.
14301 * This function destroys a queue, as detailed in @wq by sending an mailbox
14302 * command, specific to the type of queue, to the HBA.
14304 * The @wq struct is used to get the queue ID of the queue to destroy.
14306 * On success this function will return a zero. If the queue destroy mailbox
14307 * command fails this function will return -ENXIO.
14310 lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
14312 LPFC_MBOXQ_t *mbox;
14313 int rc, length, status = 0;
14314 uint32_t shdr_status, shdr_add_status;
14315 union lpfc_sli4_cfg_shdr *shdr;
14317 /* sanity check on queue memory */
14320 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
14323 length = (sizeof(struct lpfc_mbx_wq_destroy) -
14324 sizeof(struct lpfc_sli4_cfg_mhdr));
14325 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14326 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
14327 length, LPFC_SLI4_MBX_EMBED);
14328 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
14330 mbox->vport = wq->phba->pport;
14331 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14332 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
14333 shdr = (union lpfc_sli4_cfg_shdr *)
14334 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
14335 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14336 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14337 if (shdr_status || shdr_add_status || rc) {
14338 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14339 "2508 WQ_DESTROY mailbox failed with "
14340 "status x%x add_status x%x, mbx status x%x\n",
14341 shdr_status, shdr_add_status, rc);
14344 /* Remove wq from any list */
14345 list_del_init(&wq->list);
14346 mempool_free(mbox, wq->phba->mbox_mem_pool);
14351 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
14352 * @rq: The queue structure associated with the queue to destroy.
14354 * This function destroys a queue, as detailed in @rq by sending an mailbox
14355 * command, specific to the type of queue, to the HBA.
14357 * The @rq struct is used to get the queue ID of the queue to destroy.
14359 * On success this function will return a zero. If the queue destroy mailbox
14360 * command fails this function will return -ENXIO.
14363 lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
14364 struct lpfc_queue *drq)
14366 LPFC_MBOXQ_t *mbox;
14367 int rc, length, status = 0;
14368 uint32_t shdr_status, shdr_add_status;
14369 union lpfc_sli4_cfg_shdr *shdr;
14371 /* sanity check on queue memory */
14374 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
14377 length = (sizeof(struct lpfc_mbx_rq_destroy) -
14378 sizeof(struct lpfc_sli4_cfg_mhdr));
14379 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14380 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
14381 length, LPFC_SLI4_MBX_EMBED);
14382 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
14384 mbox->vport = hrq->phba->pport;
14385 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14386 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
14387 /* The IOCTL status is embedded in the mailbox subheader. */
14388 shdr = (union lpfc_sli4_cfg_shdr *)
14389 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
14390 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14391 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14392 if (shdr_status || shdr_add_status || rc) {
14393 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14394 "2509 RQ_DESTROY mailbox failed with "
14395 "status x%x add_status x%x, mbx status x%x\n",
14396 shdr_status, shdr_add_status, rc);
14397 if (rc != MBX_TIMEOUT)
14398 mempool_free(mbox, hrq->phba->mbox_mem_pool);
14401 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
14403 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
14404 shdr = (union lpfc_sli4_cfg_shdr *)
14405 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
14406 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14407 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14408 if (shdr_status || shdr_add_status || rc) {
14409 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14410 "2510 RQ_DESTROY mailbox failed with "
14411 "status x%x add_status x%x, mbx status x%x\n",
14412 shdr_status, shdr_add_status, rc);
14415 list_del_init(&hrq->list);
14416 list_del_init(&drq->list);
14417 mempool_free(mbox, hrq->phba->mbox_mem_pool);
14422 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
14423 * @phba: The virtual port for which this call being executed.
14424 * @pdma_phys_addr0: Physical address of the 1st SGL page.
14425 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
14426 * @xritag: the xritag that ties this io to the SGL pages.
14428 * This routine will post the sgl pages for the IO that has the xritag
14429 * that is in the iocbq structure. The xritag is assigned during iocbq
14430 * creation and persists for as long as the driver is loaded.
14431 * if the caller has fewer than 256 scatter gather segments to map then
14432 * pdma_phys_addr1 should be 0.
14433 * If the caller needs to map more than 256 scatter gather segment then
14434 * pdma_phys_addr1 should be a valid physical address.
14435 * physical address for SGLs must be 64 byte aligned.
14436 * If you are going to map 2 SGL's then the first one must have 256 entries
14437 * the second sgl can have between 1 and 256 entries.
14441 * -ENXIO, -ENOMEM - Failure
14444 lpfc_sli4_post_sgl(struct lpfc_hba *phba,
14445 dma_addr_t pdma_phys_addr0,
14446 dma_addr_t pdma_phys_addr1,
14449 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
14450 LPFC_MBOXQ_t *mbox;
14452 uint32_t shdr_status, shdr_add_status;
14454 union lpfc_sli4_cfg_shdr *shdr;
14456 if (xritag == NO_XRI) {
14457 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14458 "0364 Invalid param:\n");
14462 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14466 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14467 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
14468 sizeof(struct lpfc_mbx_post_sgl_pages) -
14469 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
14471 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
14472 &mbox->u.mqe.un.post_sgl_pages;
14473 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
14474 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
14476 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
14477 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
14478 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
14479 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
14481 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
14482 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
14483 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
14484 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
14485 if (!phba->sli4_hba.intr_enable)
14486 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14488 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
14489 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
14491 /* The IOCTL status is embedded in the mailbox subheader. */
14492 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
14493 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14494 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14495 if (rc != MBX_TIMEOUT)
14496 mempool_free(mbox, phba->mbox_mem_pool);
14497 if (shdr_status || shdr_add_status || rc) {
14498 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14499 "2511 POST_SGL mailbox failed with "
14500 "status x%x add_status x%x, mbx status x%x\n",
14501 shdr_status, shdr_add_status, rc);
14507 * lpfc_sli4_alloc_xri - Get an available rpi in the device's range
14508 * @phba: pointer to lpfc hba data structure.
14510 * This routine is invoked to post rpi header templates to the
14511 * HBA consistent with the SLI-4 interface spec. This routine
14512 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
14513 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
14516 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
14517 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
14520 lpfc_sli4_alloc_xri(struct lpfc_hba *phba)
14525 * Fetch the next logical xri. Because this index is logical,
14526 * the driver starts at 0 each time.
14528 spin_lock_irq(&phba->hbalock);
14529 xri = find_next_zero_bit(phba->sli4_hba.xri_bmask,
14530 phba->sli4_hba.max_cfg_param.max_xri, 0);
14531 if (xri >= phba->sli4_hba.max_cfg_param.max_xri) {
14532 spin_unlock_irq(&phba->hbalock);
14535 set_bit(xri, phba->sli4_hba.xri_bmask);
14536 phba->sli4_hba.max_cfg_param.xri_used++;
14538 spin_unlock_irq(&phba->hbalock);
14543 * lpfc_sli4_free_xri - Release an xri for reuse.
14544 * @phba: pointer to lpfc hba data structure.
14546 * This routine is invoked to release an xri to the pool of
14547 * available rpis maintained by the driver.
14550 __lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
14552 if (test_and_clear_bit(xri, phba->sli4_hba.xri_bmask)) {
14553 phba->sli4_hba.max_cfg_param.xri_used--;
14558 * lpfc_sli4_free_xri - Release an xri for reuse.
14559 * @phba: pointer to lpfc hba data structure.
14561 * This routine is invoked to release an xri to the pool of
14562 * available rpis maintained by the driver.
14565 lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
14567 spin_lock_irq(&phba->hbalock);
14568 __lpfc_sli4_free_xri(phba, xri);
14569 spin_unlock_irq(&phba->hbalock);
14573 * lpfc_sli4_next_xritag - Get an xritag for the io
14574 * @phba: Pointer to HBA context object.
14576 * This function gets an xritag for the iocb. If there is no unused xritag
14577 * it will return 0xffff.
14578 * The function returns the allocated xritag if successful, else returns zero.
14579 * Zero is not a valid xritag.
14580 * The caller is not required to hold any lock.
14583 lpfc_sli4_next_xritag(struct lpfc_hba *phba)
14585 uint16_t xri_index;
14587 xri_index = lpfc_sli4_alloc_xri(phba);
14588 if (xri_index == NO_XRI)
14589 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
14590 "2004 Failed to allocate XRI.last XRITAG is %d"
14591 " Max XRI is %d, Used XRI is %d\n",
14593 phba->sli4_hba.max_cfg_param.max_xri,
14594 phba->sli4_hba.max_cfg_param.xri_used);
14599 * lpfc_sli4_post_els_sgl_list - post a block of ELS sgls to the port.
14600 * @phba: pointer to lpfc hba data structure.
14601 * @post_sgl_list: pointer to els sgl entry list.
14602 * @count: number of els sgl entries on the list.
14604 * This routine is invoked to post a block of driver's sgl pages to the
14605 * HBA using non-embedded mailbox command. No Lock is held. This routine
14606 * is only called when the driver is loading and after all IO has been
14610 lpfc_sli4_post_els_sgl_list(struct lpfc_hba *phba,
14611 struct list_head *post_sgl_list,
14614 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
14615 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
14616 struct sgl_page_pairs *sgl_pg_pairs;
14618 LPFC_MBOXQ_t *mbox;
14619 uint32_t reqlen, alloclen, pg_pairs;
14621 uint16_t xritag_start = 0;
14623 uint32_t shdr_status, shdr_add_status;
14624 union lpfc_sli4_cfg_shdr *shdr;
14626 reqlen = phba->sli4_hba.els_xri_cnt * sizeof(struct sgl_page_pairs) +
14627 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
14628 if (reqlen > SLI4_PAGE_SIZE) {
14629 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
14630 "2559 Block sgl registration required DMA "
14631 "size (%d) great than a page\n", reqlen);
14634 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14638 /* Allocate DMA memory and set up the non-embedded mailbox command */
14639 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14640 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
14641 LPFC_SLI4_MBX_NEMBED);
14643 if (alloclen < reqlen) {
14644 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14645 "0285 Allocated DMA memory size (%d) is "
14646 "less than the requested DMA memory "
14647 "size (%d)\n", alloclen, reqlen);
14648 lpfc_sli4_mbox_cmd_free(phba, mbox);
14651 /* Set up the SGL pages in the non-embedded DMA pages */
14652 viraddr = mbox->sge_array->addr[0];
14653 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
14654 sgl_pg_pairs = &sgl->sgl_pg_pairs;
14657 list_for_each_entry_safe(sglq_entry, sglq_next, post_sgl_list, list) {
14658 /* Set up the sge entry */
14659 sgl_pg_pairs->sgl_pg0_addr_lo =
14660 cpu_to_le32(putPaddrLow(sglq_entry->phys));
14661 sgl_pg_pairs->sgl_pg0_addr_hi =
14662 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
14663 sgl_pg_pairs->sgl_pg1_addr_lo =
14664 cpu_to_le32(putPaddrLow(0));
14665 sgl_pg_pairs->sgl_pg1_addr_hi =
14666 cpu_to_le32(putPaddrHigh(0));
14668 /* Keep the first xritag on the list */
14670 xritag_start = sglq_entry->sli4_xritag;
14675 /* Complete initialization and perform endian conversion. */
14676 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
14677 bf_set(lpfc_post_sgl_pages_xricnt, sgl, phba->sli4_hba.els_xri_cnt);
14678 sgl->word0 = cpu_to_le32(sgl->word0);
14679 if (!phba->sli4_hba.intr_enable)
14680 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14682 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
14683 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
14685 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
14686 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14687 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14688 if (rc != MBX_TIMEOUT)
14689 lpfc_sli4_mbox_cmd_free(phba, mbox);
14690 if (shdr_status || shdr_add_status || rc) {
14691 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14692 "2513 POST_SGL_BLOCK mailbox command failed "
14693 "status x%x add_status x%x mbx status x%x\n",
14694 shdr_status, shdr_add_status, rc);
14701 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
14702 * @phba: pointer to lpfc hba data structure.
14703 * @sblist: pointer to scsi buffer list.
14704 * @count: number of scsi buffers on the list.
14706 * This routine is invoked to post a block of @count scsi sgl pages from a
14707 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
14712 lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba,
14713 struct list_head *sblist,
14716 struct lpfc_scsi_buf *psb;
14717 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
14718 struct sgl_page_pairs *sgl_pg_pairs;
14720 LPFC_MBOXQ_t *mbox;
14721 uint32_t reqlen, alloclen, pg_pairs;
14723 uint16_t xritag_start = 0;
14725 uint32_t shdr_status, shdr_add_status;
14726 dma_addr_t pdma_phys_bpl1;
14727 union lpfc_sli4_cfg_shdr *shdr;
14729 /* Calculate the requested length of the dma memory */
14730 reqlen = count * sizeof(struct sgl_page_pairs) +
14731 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
14732 if (reqlen > SLI4_PAGE_SIZE) {
14733 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
14734 "0217 Block sgl registration required DMA "
14735 "size (%d) great than a page\n", reqlen);
14738 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14740 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14741 "0283 Failed to allocate mbox cmd memory\n");
14745 /* Allocate DMA memory and set up the non-embedded mailbox command */
14746 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14747 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
14748 LPFC_SLI4_MBX_NEMBED);
14750 if (alloclen < reqlen) {
14751 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14752 "2561 Allocated DMA memory size (%d) is "
14753 "less than the requested DMA memory "
14754 "size (%d)\n", alloclen, reqlen);
14755 lpfc_sli4_mbox_cmd_free(phba, mbox);
14759 /* Get the first SGE entry from the non-embedded DMA memory */
14760 viraddr = mbox->sge_array->addr[0];
14762 /* Set up the SGL pages in the non-embedded DMA pages */
14763 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
14764 sgl_pg_pairs = &sgl->sgl_pg_pairs;
14767 list_for_each_entry(psb, sblist, list) {
14768 /* Set up the sge entry */
14769 sgl_pg_pairs->sgl_pg0_addr_lo =
14770 cpu_to_le32(putPaddrLow(psb->dma_phys_bpl));
14771 sgl_pg_pairs->sgl_pg0_addr_hi =
14772 cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl));
14773 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
14774 pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE;
14776 pdma_phys_bpl1 = 0;
14777 sgl_pg_pairs->sgl_pg1_addr_lo =
14778 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
14779 sgl_pg_pairs->sgl_pg1_addr_hi =
14780 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
14781 /* Keep the first xritag on the list */
14783 xritag_start = psb->cur_iocbq.sli4_xritag;
14787 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
14788 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
14789 /* Perform endian conversion if necessary */
14790 sgl->word0 = cpu_to_le32(sgl->word0);
14792 if (!phba->sli4_hba.intr_enable)
14793 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14795 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
14796 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
14798 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
14799 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14800 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14801 if (rc != MBX_TIMEOUT)
14802 lpfc_sli4_mbox_cmd_free(phba, mbox);
14803 if (shdr_status || shdr_add_status || rc) {
14804 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14805 "2564 POST_SGL_BLOCK mailbox command failed "
14806 "status x%x add_status x%x mbx status x%x\n",
14807 shdr_status, shdr_add_status, rc);
14814 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
14815 * @phba: pointer to lpfc_hba struct that the frame was received on
14816 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14818 * This function checks the fields in the @fc_hdr to see if the FC frame is a
14819 * valid type of frame that the LPFC driver will handle. This function will
14820 * return a zero if the frame is a valid frame or a non zero value when the
14821 * frame does not pass the check.
14824 lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
14826 /* make rctl_names static to save stack space */
14827 static char *rctl_names[] = FC_RCTL_NAMES_INIT;
14828 char *type_names[] = FC_TYPE_NAMES_INIT;
14829 struct fc_vft_header *fc_vft_hdr;
14830 uint32_t *header = (uint32_t *) fc_hdr;
14832 switch (fc_hdr->fh_r_ctl) {
14833 case FC_RCTL_DD_UNCAT: /* uncategorized information */
14834 case FC_RCTL_DD_SOL_DATA: /* solicited data */
14835 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
14836 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
14837 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
14838 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
14839 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
14840 case FC_RCTL_DD_CMD_STATUS: /* command status */
14841 case FC_RCTL_ELS_REQ: /* extended link services request */
14842 case FC_RCTL_ELS_REP: /* extended link services reply */
14843 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
14844 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
14845 case FC_RCTL_BA_NOP: /* basic link service NOP */
14846 case FC_RCTL_BA_ABTS: /* basic link service abort */
14847 case FC_RCTL_BA_RMC: /* remove connection */
14848 case FC_RCTL_BA_ACC: /* basic accept */
14849 case FC_RCTL_BA_RJT: /* basic reject */
14850 case FC_RCTL_BA_PRMT:
14851 case FC_RCTL_ACK_1: /* acknowledge_1 */
14852 case FC_RCTL_ACK_0: /* acknowledge_0 */
14853 case FC_RCTL_P_RJT: /* port reject */
14854 case FC_RCTL_F_RJT: /* fabric reject */
14855 case FC_RCTL_P_BSY: /* port busy */
14856 case FC_RCTL_F_BSY: /* fabric busy to data frame */
14857 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
14858 case FC_RCTL_LCR: /* link credit reset */
14859 case FC_RCTL_END: /* end */
14861 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
14862 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
14863 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
14864 return lpfc_fc_frame_check(phba, fc_hdr);
14868 switch (fc_hdr->fh_type) {
14880 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
14881 "2538 Received frame rctl:%s (x%x), type:%s (x%x), "
14882 "frame Data:%08x %08x %08x %08x %08x %08x %08x\n",
14883 rctl_names[fc_hdr->fh_r_ctl], fc_hdr->fh_r_ctl,
14884 type_names[fc_hdr->fh_type], fc_hdr->fh_type,
14885 be32_to_cpu(header[0]), be32_to_cpu(header[1]),
14886 be32_to_cpu(header[2]), be32_to_cpu(header[3]),
14887 be32_to_cpu(header[4]), be32_to_cpu(header[5]),
14888 be32_to_cpu(header[6]));
14891 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
14892 "2539 Dropped frame rctl:%s type:%s\n",
14893 rctl_names[fc_hdr->fh_r_ctl],
14894 type_names[fc_hdr->fh_type]);
14899 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
14900 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14902 * This function processes the FC header to retrieve the VFI from the VF
14903 * header, if one exists. This function will return the VFI if one exists
14904 * or 0 if no VSAN Header exists.
14907 lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
14909 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
14911 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
14913 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
14917 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
14918 * @phba: Pointer to the HBA structure to search for the vport on
14919 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14920 * @fcfi: The FC Fabric ID that the frame came from
14922 * This function searches the @phba for a vport that matches the content of the
14923 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
14924 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
14925 * returns the matching vport pointer or NULL if unable to match frame to a
14928 static struct lpfc_vport *
14929 lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
14932 struct lpfc_vport **vports;
14933 struct lpfc_vport *vport = NULL;
14935 uint32_t did = (fc_hdr->fh_d_id[0] << 16 |
14936 fc_hdr->fh_d_id[1] << 8 |
14937 fc_hdr->fh_d_id[2]);
14939 if (did == Fabric_DID)
14940 return phba->pport;
14941 if ((phba->pport->fc_flag & FC_PT2PT) &&
14942 !(phba->link_state == LPFC_HBA_READY))
14943 return phba->pport;
14945 vports = lpfc_create_vport_work_array(phba);
14946 if (vports != NULL)
14947 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
14948 if (phba->fcf.fcfi == fcfi &&
14949 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
14950 vports[i]->fc_myDID == did) {
14955 lpfc_destroy_vport_work_array(phba, vports);
14960 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
14961 * @vport: The vport to work on.
14963 * This function updates the receive sequence time stamp for this vport. The
14964 * receive sequence time stamp indicates the time that the last frame of the
14965 * the sequence that has been idle for the longest amount of time was received.
14966 * the driver uses this time stamp to indicate if any received sequences have
14970 lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
14972 struct lpfc_dmabuf *h_buf;
14973 struct hbq_dmabuf *dmabuf = NULL;
14975 /* get the oldest sequence on the rcv list */
14976 h_buf = list_get_first(&vport->rcv_buffer_list,
14977 struct lpfc_dmabuf, list);
14980 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14981 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
14985 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
14986 * @vport: The vport that the received sequences were sent to.
14988 * This function cleans up all outstanding received sequences. This is called
14989 * by the driver when a link event or user action invalidates all the received
14993 lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
14995 struct lpfc_dmabuf *h_buf, *hnext;
14996 struct lpfc_dmabuf *d_buf, *dnext;
14997 struct hbq_dmabuf *dmabuf = NULL;
14999 /* start with the oldest sequence on the rcv list */
15000 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
15001 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
15002 list_del_init(&dmabuf->hbuf.list);
15003 list_for_each_entry_safe(d_buf, dnext,
15004 &dmabuf->dbuf.list, list) {
15005 list_del_init(&d_buf->list);
15006 lpfc_in_buf_free(vport->phba, d_buf);
15008 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
15013 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
15014 * @vport: The vport that the received sequences were sent to.
15016 * This function determines whether any received sequences have timed out by
15017 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
15018 * indicates that there is at least one timed out sequence this routine will
15019 * go through the received sequences one at a time from most inactive to most
15020 * active to determine which ones need to be cleaned up. Once it has determined
15021 * that a sequence needs to be cleaned up it will simply free up the resources
15022 * without sending an abort.
15025 lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
15027 struct lpfc_dmabuf *h_buf, *hnext;
15028 struct lpfc_dmabuf *d_buf, *dnext;
15029 struct hbq_dmabuf *dmabuf = NULL;
15030 unsigned long timeout;
15031 int abort_count = 0;
15033 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
15034 vport->rcv_buffer_time_stamp);
15035 if (list_empty(&vport->rcv_buffer_list) ||
15036 time_before(jiffies, timeout))
15038 /* start with the oldest sequence on the rcv list */
15039 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
15040 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
15041 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
15042 dmabuf->time_stamp);
15043 if (time_before(jiffies, timeout))
15046 list_del_init(&dmabuf->hbuf.list);
15047 list_for_each_entry_safe(d_buf, dnext,
15048 &dmabuf->dbuf.list, list) {
15049 list_del_init(&d_buf->list);
15050 lpfc_in_buf_free(vport->phba, d_buf);
15052 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
15055 lpfc_update_rcv_time_stamp(vport);
15059 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
15060 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
15062 * This function searches through the existing incomplete sequences that have
15063 * been sent to this @vport. If the frame matches one of the incomplete
15064 * sequences then the dbuf in the @dmabuf is added to the list of frames that
15065 * make up that sequence. If no sequence is found that matches this frame then
15066 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
15067 * This function returns a pointer to the first dmabuf in the sequence list that
15068 * the frame was linked to.
15070 static struct hbq_dmabuf *
15071 lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
15073 struct fc_frame_header *new_hdr;
15074 struct fc_frame_header *temp_hdr;
15075 struct lpfc_dmabuf *d_buf;
15076 struct lpfc_dmabuf *h_buf;
15077 struct hbq_dmabuf *seq_dmabuf = NULL;
15078 struct hbq_dmabuf *temp_dmabuf = NULL;
15081 INIT_LIST_HEAD(&dmabuf->dbuf.list);
15082 dmabuf->time_stamp = jiffies;
15083 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
15085 /* Use the hdr_buf to find the sequence that this frame belongs to */
15086 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
15087 temp_hdr = (struct fc_frame_header *)h_buf->virt;
15088 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
15089 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
15090 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
15092 /* found a pending sequence that matches this frame */
15093 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
15098 * This indicates first frame received for this sequence.
15099 * Queue the buffer on the vport's rcv_buffer_list.
15101 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
15102 lpfc_update_rcv_time_stamp(vport);
15105 temp_hdr = seq_dmabuf->hbuf.virt;
15106 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
15107 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
15108 list_del_init(&seq_dmabuf->hbuf.list);
15109 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
15110 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
15111 lpfc_update_rcv_time_stamp(vport);
15114 /* move this sequence to the tail to indicate a young sequence */
15115 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
15116 seq_dmabuf->time_stamp = jiffies;
15117 lpfc_update_rcv_time_stamp(vport);
15118 if (list_empty(&seq_dmabuf->dbuf.list)) {
15119 temp_hdr = dmabuf->hbuf.virt;
15120 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
15123 /* find the correct place in the sequence to insert this frame */
15124 d_buf = list_entry(seq_dmabuf->dbuf.list.prev, typeof(*d_buf), list);
15126 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
15127 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
15129 * If the frame's sequence count is greater than the frame on
15130 * the list then insert the frame right after this frame
15132 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
15133 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
15134 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
15139 if (&d_buf->list == &seq_dmabuf->dbuf.list)
15141 d_buf = list_entry(d_buf->list.prev, typeof(*d_buf), list);
15150 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
15151 * @vport: pointer to a vitural port
15152 * @dmabuf: pointer to a dmabuf that describes the FC sequence
15154 * This function tries to abort from the partially assembed sequence, described
15155 * by the information from basic abbort @dmabuf. It checks to see whether such
15156 * partially assembled sequence held by the driver. If so, it shall free up all
15157 * the frames from the partially assembled sequence.
15160 * true -- if there is matching partially assembled sequence present and all
15161 * the frames freed with the sequence;
15162 * false -- if there is no matching partially assembled sequence present so
15163 * nothing got aborted in the lower layer driver
15166 lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
15167 struct hbq_dmabuf *dmabuf)
15169 struct fc_frame_header *new_hdr;
15170 struct fc_frame_header *temp_hdr;
15171 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
15172 struct hbq_dmabuf *seq_dmabuf = NULL;
15174 /* Use the hdr_buf to find the sequence that matches this frame */
15175 INIT_LIST_HEAD(&dmabuf->dbuf.list);
15176 INIT_LIST_HEAD(&dmabuf->hbuf.list);
15177 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
15178 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
15179 temp_hdr = (struct fc_frame_header *)h_buf->virt;
15180 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
15181 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
15182 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
15184 /* found a pending sequence that matches this frame */
15185 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
15189 /* Free up all the frames from the partially assembled sequence */
15191 list_for_each_entry_safe(d_buf, n_buf,
15192 &seq_dmabuf->dbuf.list, list) {
15193 list_del_init(&d_buf->list);
15194 lpfc_in_buf_free(vport->phba, d_buf);
15202 * lpfc_sli4_abort_ulp_seq - Abort assembled unsol sequence from ulp
15203 * @vport: pointer to a vitural port
15204 * @dmabuf: pointer to a dmabuf that describes the FC sequence
15206 * This function tries to abort from the assembed sequence from upper level
15207 * protocol, described by the information from basic abbort @dmabuf. It
15208 * checks to see whether such pending context exists at upper level protocol.
15209 * If so, it shall clean up the pending context.
15212 * true -- if there is matching pending context of the sequence cleaned
15214 * false -- if there is no matching pending context of the sequence present
15218 lpfc_sli4_abort_ulp_seq(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
15220 struct lpfc_hba *phba = vport->phba;
15223 /* Accepting abort at ulp with SLI4 only */
15224 if (phba->sli_rev < LPFC_SLI_REV4)
15227 /* Register all caring upper level protocols to attend abort */
15228 handled = lpfc_ct_handle_unsol_abort(phba, dmabuf);
15236 * lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler
15237 * @phba: Pointer to HBA context object.
15238 * @cmd_iocbq: pointer to the command iocbq structure.
15239 * @rsp_iocbq: pointer to the response iocbq structure.
15241 * This function handles the sequence abort response iocb command complete
15242 * event. It properly releases the memory allocated to the sequence abort
15246 lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba *phba,
15247 struct lpfc_iocbq *cmd_iocbq,
15248 struct lpfc_iocbq *rsp_iocbq)
15250 struct lpfc_nodelist *ndlp;
15253 ndlp = (struct lpfc_nodelist *)cmd_iocbq->context1;
15254 lpfc_nlp_put(ndlp);
15255 lpfc_sli_release_iocbq(phba, cmd_iocbq);
15258 /* Failure means BLS ABORT RSP did not get delivered to remote node*/
15259 if (rsp_iocbq && rsp_iocbq->iocb.ulpStatus)
15260 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15261 "3154 BLS ABORT RSP failed, data: x%x/x%x\n",
15262 rsp_iocbq->iocb.ulpStatus,
15263 rsp_iocbq->iocb.un.ulpWord[4]);
15267 * lpfc_sli4_xri_inrange - check xri is in range of xris owned by driver.
15268 * @phba: Pointer to HBA context object.
15269 * @xri: xri id in transaction.
15271 * This function validates the xri maps to the known range of XRIs allocated an
15272 * used by the driver.
15275 lpfc_sli4_xri_inrange(struct lpfc_hba *phba,
15280 for (i = 0; i < phba->sli4_hba.max_cfg_param.max_xri; i++) {
15281 if (xri == phba->sli4_hba.xri_ids[i])
15288 * lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort
15289 * @phba: Pointer to HBA context object.
15290 * @fc_hdr: pointer to a FC frame header.
15292 * This function sends a basic response to a previous unsol sequence abort
15293 * event after aborting the sequence handling.
15296 lpfc_sli4_seq_abort_rsp(struct lpfc_vport *vport,
15297 struct fc_frame_header *fc_hdr, bool aborted)
15299 struct lpfc_hba *phba = vport->phba;
15300 struct lpfc_iocbq *ctiocb = NULL;
15301 struct lpfc_nodelist *ndlp;
15302 uint16_t oxid, rxid, xri, lxri;
15303 uint32_t sid, fctl;
15307 if (!lpfc_is_link_up(phba))
15310 sid = sli4_sid_from_fc_hdr(fc_hdr);
15311 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
15312 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
15314 ndlp = lpfc_findnode_did(vport, sid);
15316 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
15318 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
15319 "1268 Failed to allocate ndlp for "
15320 "oxid:x%x SID:x%x\n", oxid, sid);
15323 lpfc_nlp_init(vport, ndlp, sid);
15324 /* Put ndlp onto pport node list */
15325 lpfc_enqueue_node(vport, ndlp);
15326 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
15327 /* re-setup ndlp without removing from node list */
15328 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
15330 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
15331 "3275 Failed to active ndlp found "
15332 "for oxid:x%x SID:x%x\n", oxid, sid);
15337 /* Allocate buffer for rsp iocb */
15338 ctiocb = lpfc_sli_get_iocbq(phba);
15342 /* Extract the F_CTL field from FC_HDR */
15343 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
15345 icmd = &ctiocb->iocb;
15346 icmd->un.xseq64.bdl.bdeSize = 0;
15347 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
15348 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
15349 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
15350 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
15352 /* Fill in the rest of iocb fields */
15353 icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
15354 icmd->ulpBdeCount = 0;
15356 icmd->ulpClass = CLASS3;
15357 icmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
15358 ctiocb->context1 = lpfc_nlp_get(ndlp);
15360 ctiocb->iocb_cmpl = NULL;
15361 ctiocb->vport = phba->pport;
15362 ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_rsp_cmpl;
15363 ctiocb->sli4_lxritag = NO_XRI;
15364 ctiocb->sli4_xritag = NO_XRI;
15366 if (fctl & FC_FC_EX_CTX)
15367 /* Exchange responder sent the abort so we
15373 lxri = lpfc_sli4_xri_inrange(phba, xri);
15374 if (lxri != NO_XRI)
15375 lpfc_set_rrq_active(phba, ndlp, lxri,
15376 (xri == oxid) ? rxid : oxid, 0);
15377 /* For BA_ABTS from exchange responder, if the logical xri with
15378 * the oxid maps to the FCP XRI range, the port no longer has
15379 * that exchange context, send a BLS_RJT. Override the IOCB for
15382 if ((fctl & FC_FC_EX_CTX) &&
15383 (lxri > lpfc_sli4_get_els_iocb_cnt(phba))) {
15384 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
15385 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
15386 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
15387 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
15390 /* If BA_ABTS failed to abort a partially assembled receive sequence,
15391 * the driver no longer has that exchange, send a BLS_RJT. Override
15392 * the IOCB for a BA_RJT.
15394 if (aborted == false) {
15395 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
15396 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
15397 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
15398 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
15401 if (fctl & FC_FC_EX_CTX) {
15402 /* ABTS sent by responder to CT exchange, construction
15403 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
15404 * field and RX_ID from ABTS for RX_ID field.
15406 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_RSP);
15408 /* ABTS sent by initiator to CT exchange, construction
15409 * of BA_ACC will need to allocate a new XRI as for the
15412 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_INT);
15414 bf_set(lpfc_abts_rxid, &icmd->un.bls_rsp, rxid);
15415 bf_set(lpfc_abts_oxid, &icmd->un.bls_rsp, oxid);
15417 /* Xmit CT abts response on exchange <xid> */
15418 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
15419 "1200 Send BLS cmd x%x on oxid x%x Data: x%x\n",
15420 icmd->un.xseq64.w5.hcsw.Rctl, oxid, phba->link_state);
15422 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
15423 if (rc == IOCB_ERROR) {
15424 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
15425 "2925 Failed to issue CT ABTS RSP x%x on "
15426 "xri x%x, Data x%x\n",
15427 icmd->un.xseq64.w5.hcsw.Rctl, oxid,
15429 lpfc_nlp_put(ndlp);
15430 ctiocb->context1 = NULL;
15431 lpfc_sli_release_iocbq(phba, ctiocb);
15436 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
15437 * @vport: Pointer to the vport on which this sequence was received
15438 * @dmabuf: pointer to a dmabuf that describes the FC sequence
15440 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
15441 * receive sequence is only partially assembed by the driver, it shall abort
15442 * the partially assembled frames for the sequence. Otherwise, if the
15443 * unsolicited receive sequence has been completely assembled and passed to
15444 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
15445 * unsolicited sequence has been aborted. After that, it will issue a basic
15446 * accept to accept the abort.
15449 lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
15450 struct hbq_dmabuf *dmabuf)
15452 struct lpfc_hba *phba = vport->phba;
15453 struct fc_frame_header fc_hdr;
15457 /* Make a copy of fc_hdr before the dmabuf being released */
15458 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
15459 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
15461 if (fctl & FC_FC_EX_CTX) {
15462 /* ABTS by responder to exchange, no cleanup needed */
15465 /* ABTS by initiator to exchange, need to do cleanup */
15466 aborted = lpfc_sli4_abort_partial_seq(vport, dmabuf);
15467 if (aborted == false)
15468 aborted = lpfc_sli4_abort_ulp_seq(vport, dmabuf);
15470 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15472 /* Respond with BA_ACC or BA_RJT accordingly */
15473 lpfc_sli4_seq_abort_rsp(vport, &fc_hdr, aborted);
15477 * lpfc_seq_complete - Indicates if a sequence is complete
15478 * @dmabuf: pointer to a dmabuf that describes the FC sequence
15480 * This function checks the sequence, starting with the frame described by
15481 * @dmabuf, to see if all the frames associated with this sequence are present.
15482 * the frames associated with this sequence are linked to the @dmabuf using the
15483 * dbuf list. This function looks for two major things. 1) That the first frame
15484 * has a sequence count of zero. 2) There is a frame with last frame of sequence
15485 * set. 3) That there are no holes in the sequence count. The function will
15486 * return 1 when the sequence is complete, otherwise it will return 0.
15489 lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
15491 struct fc_frame_header *hdr;
15492 struct lpfc_dmabuf *d_buf;
15493 struct hbq_dmabuf *seq_dmabuf;
15497 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
15498 /* make sure first fame of sequence has a sequence count of zero */
15499 if (hdr->fh_seq_cnt != seq_count)
15501 fctl = (hdr->fh_f_ctl[0] << 16 |
15502 hdr->fh_f_ctl[1] << 8 |
15504 /* If last frame of sequence we can return success. */
15505 if (fctl & FC_FC_END_SEQ)
15507 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
15508 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
15509 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
15510 /* If there is a hole in the sequence count then fail. */
15511 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
15513 fctl = (hdr->fh_f_ctl[0] << 16 |
15514 hdr->fh_f_ctl[1] << 8 |
15516 /* If last frame of sequence we can return success. */
15517 if (fctl & FC_FC_END_SEQ)
15524 * lpfc_prep_seq - Prep sequence for ULP processing
15525 * @vport: Pointer to the vport on which this sequence was received
15526 * @dmabuf: pointer to a dmabuf that describes the FC sequence
15528 * This function takes a sequence, described by a list of frames, and creates
15529 * a list of iocbq structures to describe the sequence. This iocbq list will be
15530 * used to issue to the generic unsolicited sequence handler. This routine
15531 * returns a pointer to the first iocbq in the list. If the function is unable
15532 * to allocate an iocbq then it throw out the received frames that were not
15533 * able to be described and return a pointer to the first iocbq. If unable to
15534 * allocate any iocbqs (including the first) this function will return NULL.
15536 static struct lpfc_iocbq *
15537 lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
15539 struct hbq_dmabuf *hbq_buf;
15540 struct lpfc_dmabuf *d_buf, *n_buf;
15541 struct lpfc_iocbq *first_iocbq, *iocbq;
15542 struct fc_frame_header *fc_hdr;
15544 uint32_t len, tot_len;
15545 struct ulp_bde64 *pbde;
15547 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
15548 /* remove from receive buffer list */
15549 list_del_init(&seq_dmabuf->hbuf.list);
15550 lpfc_update_rcv_time_stamp(vport);
15551 /* get the Remote Port's SID */
15552 sid = sli4_sid_from_fc_hdr(fc_hdr);
15554 /* Get an iocbq struct to fill in. */
15555 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
15557 /* Initialize the first IOCB. */
15558 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
15559 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
15561 /* Check FC Header to see what TYPE of frame we are rcv'ing */
15562 if (sli4_type_from_fc_hdr(fc_hdr) == FC_TYPE_ELS) {
15563 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_ELS64_CX;
15564 first_iocbq->iocb.un.rcvels.parmRo =
15565 sli4_did_from_fc_hdr(fc_hdr);
15566 first_iocbq->iocb.ulpPU = PARM_NPIV_DID;
15568 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
15569 first_iocbq->iocb.ulpContext = NO_XRI;
15570 first_iocbq->iocb.unsli3.rcvsli3.ox_id =
15571 be16_to_cpu(fc_hdr->fh_ox_id);
15572 /* iocbq is prepped for internal consumption. Physical vpi. */
15573 first_iocbq->iocb.unsli3.rcvsli3.vpi =
15574 vport->phba->vpi_ids[vport->vpi];
15575 /* put the first buffer into the first IOCBq */
15576 tot_len = bf_get(lpfc_rcqe_length,
15577 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
15579 first_iocbq->context2 = &seq_dmabuf->dbuf;
15580 first_iocbq->context3 = NULL;
15581 first_iocbq->iocb.ulpBdeCount = 1;
15582 if (tot_len > LPFC_DATA_BUF_SIZE)
15583 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
15584 LPFC_DATA_BUF_SIZE;
15586 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize = tot_len;
15588 first_iocbq->iocb.un.rcvels.remoteID = sid;
15590 first_iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
15592 iocbq = first_iocbq;
15594 * Each IOCBq can have two Buffers assigned, so go through the list
15595 * of buffers for this sequence and save two buffers in each IOCBq
15597 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
15599 lpfc_in_buf_free(vport->phba, d_buf);
15602 if (!iocbq->context3) {
15603 iocbq->context3 = d_buf;
15604 iocbq->iocb.ulpBdeCount++;
15605 /* We need to get the size out of the right CQE */
15606 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
15607 len = bf_get(lpfc_rcqe_length,
15608 &hbq_buf->cq_event.cqe.rcqe_cmpl);
15609 pbde = (struct ulp_bde64 *)
15610 &iocbq->iocb.unsli3.sli3Words[4];
15611 if (len > LPFC_DATA_BUF_SIZE)
15612 pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
15614 pbde->tus.f.bdeSize = len;
15616 iocbq->iocb.unsli3.rcvsli3.acc_len += len;
15619 iocbq = lpfc_sli_get_iocbq(vport->phba);
15622 first_iocbq->iocb.ulpStatus =
15623 IOSTAT_FCP_RSP_ERROR;
15624 first_iocbq->iocb.un.ulpWord[4] =
15625 IOERR_NO_RESOURCES;
15627 lpfc_in_buf_free(vport->phba, d_buf);
15630 /* We need to get the size out of the right CQE */
15631 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
15632 len = bf_get(lpfc_rcqe_length,
15633 &hbq_buf->cq_event.cqe.rcqe_cmpl);
15634 iocbq->context2 = d_buf;
15635 iocbq->context3 = NULL;
15636 iocbq->iocb.ulpBdeCount = 1;
15637 if (len > LPFC_DATA_BUF_SIZE)
15638 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
15639 LPFC_DATA_BUF_SIZE;
15641 iocbq->iocb.un.cont64[0].tus.f.bdeSize = len;
15644 iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
15646 iocbq->iocb.un.rcvels.remoteID = sid;
15647 list_add_tail(&iocbq->list, &first_iocbq->list);
15650 /* Free the sequence's header buffer */
15652 lpfc_in_buf_free(vport->phba, &seq_dmabuf->dbuf);
15654 return first_iocbq;
15658 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
15659 struct hbq_dmabuf *seq_dmabuf)
15661 struct fc_frame_header *fc_hdr;
15662 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
15663 struct lpfc_hba *phba = vport->phba;
15665 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
15666 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
15668 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15669 "2707 Ring %d handler: Failed to allocate "
15670 "iocb Rctl x%x Type x%x received\n",
15672 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
15675 if (!lpfc_complete_unsol_iocb(phba,
15676 &phba->sli.ring[LPFC_ELS_RING],
15677 iocbq, fc_hdr->fh_r_ctl,
15679 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15680 "2540 Ring %d handler: unexpected Rctl "
15681 "x%x Type x%x received\n",
15683 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
15685 /* Free iocb created in lpfc_prep_seq */
15686 list_for_each_entry_safe(curr_iocb, next_iocb,
15687 &iocbq->list, list) {
15688 list_del_init(&curr_iocb->list);
15689 lpfc_sli_release_iocbq(phba, curr_iocb);
15691 lpfc_sli_release_iocbq(phba, iocbq);
15695 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
15696 * @phba: Pointer to HBA context object.
15698 * This function is called with no lock held. This function processes all
15699 * the received buffers and gives it to upper layers when a received buffer
15700 * indicates that it is the final frame in the sequence. The interrupt
15701 * service routine processes received buffers at interrupt contexts and adds
15702 * received dma buffers to the rb_pend_list queue and signals the worker thread.
15703 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
15704 * appropriate receive function when the final frame in a sequence is received.
15707 lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
15708 struct hbq_dmabuf *dmabuf)
15710 struct hbq_dmabuf *seq_dmabuf;
15711 struct fc_frame_header *fc_hdr;
15712 struct lpfc_vport *vport;
15716 /* Process each received buffer */
15717 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
15718 /* check to see if this a valid type of frame */
15719 if (lpfc_fc_frame_check(phba, fc_hdr)) {
15720 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15723 if ((bf_get(lpfc_cqe_code,
15724 &dmabuf->cq_event.cqe.rcqe_cmpl) == CQE_CODE_RECEIVE_V1))
15725 fcfi = bf_get(lpfc_rcqe_fcf_id_v1,
15726 &dmabuf->cq_event.cqe.rcqe_cmpl);
15728 fcfi = bf_get(lpfc_rcqe_fcf_id,
15729 &dmabuf->cq_event.cqe.rcqe_cmpl);
15731 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi);
15733 /* throw out the frame */
15734 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15738 /* d_id this frame is directed to */
15739 did = sli4_did_from_fc_hdr(fc_hdr);
15741 /* vport is registered unless we rcv a FLOGI directed to Fabric_DID */
15742 if (!(vport->vpi_state & LPFC_VPI_REGISTERED) &&
15743 (did != Fabric_DID)) {
15745 * Throw out the frame if we are not pt2pt.
15746 * The pt2pt protocol allows for discovery frames
15747 * to be received without a registered VPI.
15749 if (!(vport->fc_flag & FC_PT2PT) ||
15750 (phba->link_state == LPFC_HBA_READY)) {
15751 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15756 /* Handle the basic abort sequence (BA_ABTS) event */
15757 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
15758 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
15762 /* Link this frame */
15763 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
15765 /* unable to add frame to vport - throw it out */
15766 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15769 /* If not last frame in sequence continue processing frames. */
15770 if (!lpfc_seq_complete(seq_dmabuf))
15773 /* Send the complete sequence to the upper layer protocol */
15774 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
15778 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
15779 * @phba: pointer to lpfc hba data structure.
15781 * This routine is invoked to post rpi header templates to the
15782 * HBA consistent with the SLI-4 interface spec. This routine
15783 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
15784 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
15786 * This routine does not require any locks. It's usage is expected
15787 * to be driver load or reset recovery when the driver is
15792 * -EIO - The mailbox failed to complete successfully.
15793 * When this error occurs, the driver is not guaranteed
15794 * to have any rpi regions posted to the device and
15795 * must either attempt to repost the regions or take a
15799 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
15801 struct lpfc_rpi_hdr *rpi_page;
15805 /* SLI4 ports that support extents do not require RPI headers. */
15806 if (!phba->sli4_hba.rpi_hdrs_in_use)
15808 if (phba->sli4_hba.extents_in_use)
15811 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
15813 * Assign the rpi headers a physical rpi only if the driver
15814 * has not initialized those resources. A port reset only
15815 * needs the headers posted.
15817 if (bf_get(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags) !=
15819 rpi_page->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
15821 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
15822 if (rc != MBX_SUCCESS) {
15823 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15824 "2008 Error %d posting all rpi "
15832 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags,
15833 LPFC_RPI_RSRC_RDY);
15838 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
15839 * @phba: pointer to lpfc hba data structure.
15840 * @rpi_page: pointer to the rpi memory region.
15842 * This routine is invoked to post a single rpi header to the
15843 * HBA consistent with the SLI-4 interface spec. This memory region
15844 * maps up to 64 rpi context regions.
15848 * -ENOMEM - No available memory
15849 * -EIO - The mailbox failed to complete successfully.
15852 lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
15854 LPFC_MBOXQ_t *mboxq;
15855 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
15857 uint32_t shdr_status, shdr_add_status;
15858 union lpfc_sli4_cfg_shdr *shdr;
15860 /* SLI4 ports that support extents do not require RPI headers. */
15861 if (!phba->sli4_hba.rpi_hdrs_in_use)
15863 if (phba->sli4_hba.extents_in_use)
15866 /* The port is notified of the header region via a mailbox command. */
15867 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15869 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15870 "2001 Unable to allocate memory for issuing "
15871 "SLI_CONFIG_SPECIAL mailbox command\n");
15875 /* Post all rpi memory regions to the port. */
15876 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
15877 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
15878 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
15879 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
15880 sizeof(struct lpfc_sli4_cfg_mhdr),
15881 LPFC_SLI4_MBX_EMBED);
15884 /* Post the physical rpi to the port for this rpi header. */
15885 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
15886 rpi_page->start_rpi);
15887 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
15888 hdr_tmpl, rpi_page->page_count);
15890 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
15891 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
15892 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
15893 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
15894 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15895 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15896 if (rc != MBX_TIMEOUT)
15897 mempool_free(mboxq, phba->mbox_mem_pool);
15898 if (shdr_status || shdr_add_status || rc) {
15899 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15900 "2514 POST_RPI_HDR mailbox failed with "
15901 "status x%x add_status x%x, mbx status x%x\n",
15902 shdr_status, shdr_add_status, rc);
15909 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
15910 * @phba: pointer to lpfc hba data structure.
15912 * This routine is invoked to post rpi header templates to the
15913 * HBA consistent with the SLI-4 interface spec. This routine
15914 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
15915 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
15918 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
15919 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
15922 lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
15925 uint16_t max_rpi, rpi_limit;
15926 uint16_t rpi_remaining, lrpi = 0;
15927 struct lpfc_rpi_hdr *rpi_hdr;
15928 unsigned long iflag;
15931 * Fetch the next logical rpi. Because this index is logical,
15932 * the driver starts at 0 each time.
15934 spin_lock_irqsave(&phba->hbalock, iflag);
15935 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
15936 rpi_limit = phba->sli4_hba.next_rpi;
15938 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, 0);
15939 if (rpi >= rpi_limit)
15940 rpi = LPFC_RPI_ALLOC_ERROR;
15942 set_bit(rpi, phba->sli4_hba.rpi_bmask);
15943 phba->sli4_hba.max_cfg_param.rpi_used++;
15944 phba->sli4_hba.rpi_count++;
15946 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
15947 "0001 rpi:%x max:%x lim:%x\n",
15948 (int) rpi, max_rpi, rpi_limit);
15951 * Don't try to allocate more rpi header regions if the device limit
15952 * has been exhausted.
15954 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
15955 (phba->sli4_hba.rpi_count >= max_rpi)) {
15956 spin_unlock_irqrestore(&phba->hbalock, iflag);
15961 * RPI header postings are not required for SLI4 ports capable of
15964 if (!phba->sli4_hba.rpi_hdrs_in_use) {
15965 spin_unlock_irqrestore(&phba->hbalock, iflag);
15970 * If the driver is running low on rpi resources, allocate another
15971 * page now. Note that the next_rpi value is used because
15972 * it represents how many are actually in use whereas max_rpi notes
15973 * how many are supported max by the device.
15975 rpi_remaining = phba->sli4_hba.next_rpi - phba->sli4_hba.rpi_count;
15976 spin_unlock_irqrestore(&phba->hbalock, iflag);
15977 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
15978 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
15980 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15981 "2002 Error Could not grow rpi "
15984 lrpi = rpi_hdr->start_rpi;
15985 rpi_hdr->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
15986 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
15994 * lpfc_sli4_free_rpi - Release an rpi for reuse.
15995 * @phba: pointer to lpfc hba data structure.
15997 * This routine is invoked to release an rpi to the pool of
15998 * available rpis maintained by the driver.
16001 __lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
16004 * if the rpi value indicates a prior unreg has already
16005 * been done, skip the unreg.
16007 if (rpi == LPFC_RPI_ALLOC_ERROR)
16010 if (test_and_clear_bit(rpi, phba->sli4_hba.rpi_bmask)) {
16011 phba->sli4_hba.rpi_count--;
16012 phba->sli4_hba.max_cfg_param.rpi_used--;
16017 * lpfc_sli4_free_rpi - Release an rpi for reuse.
16018 * @phba: pointer to lpfc hba data structure.
16020 * This routine is invoked to release an rpi to the pool of
16021 * available rpis maintained by the driver.
16024 lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
16026 spin_lock_irq(&phba->hbalock);
16027 __lpfc_sli4_free_rpi(phba, rpi);
16028 spin_unlock_irq(&phba->hbalock);
16032 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
16033 * @phba: pointer to lpfc hba data structure.
16035 * This routine is invoked to remove the memory region that
16036 * provided rpi via a bitmask.
16039 lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
16041 kfree(phba->sli4_hba.rpi_bmask);
16042 kfree(phba->sli4_hba.rpi_ids);
16043 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
16047 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
16048 * @phba: pointer to lpfc hba data structure.
16050 * This routine is invoked to remove the memory region that
16051 * provided rpi via a bitmask.
16054 lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp,
16055 void (*cmpl)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *arg)
16057 LPFC_MBOXQ_t *mboxq;
16058 struct lpfc_hba *phba = ndlp->phba;
16061 /* The port is notified of the header region via a mailbox command. */
16062 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16066 /* Post all rpi memory regions to the port. */
16067 lpfc_resume_rpi(mboxq, ndlp);
16069 mboxq->mbox_cmpl = cmpl;
16070 mboxq->context1 = arg;
16071 mboxq->context2 = ndlp;
16073 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16074 mboxq->vport = ndlp->vport;
16075 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
16076 if (rc == MBX_NOT_FINISHED) {
16077 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16078 "2010 Resume RPI Mailbox failed "
16079 "status %d, mbxStatus x%x\n", rc,
16080 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
16081 mempool_free(mboxq, phba->mbox_mem_pool);
16088 * lpfc_sli4_init_vpi - Initialize a vpi with the port
16089 * @vport: Pointer to the vport for which the vpi is being initialized
16091 * This routine is invoked to activate a vpi with the port.
16095 * -Evalue otherwise
16098 lpfc_sli4_init_vpi(struct lpfc_vport *vport)
16100 LPFC_MBOXQ_t *mboxq;
16102 int retval = MBX_SUCCESS;
16104 struct lpfc_hba *phba = vport->phba;
16105 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16108 lpfc_init_vpi(phba, mboxq, vport->vpi);
16109 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
16110 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
16111 if (rc != MBX_SUCCESS) {
16112 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
16113 "2022 INIT VPI Mailbox failed "
16114 "status %d, mbxStatus x%x\n", rc,
16115 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
16118 if (rc != MBX_TIMEOUT)
16119 mempool_free(mboxq, vport->phba->mbox_mem_pool);
16125 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
16126 * @phba: pointer to lpfc hba data structure.
16127 * @mboxq: Pointer to mailbox object.
16129 * This routine is invoked to manually add a single FCF record. The caller
16130 * must pass a completely initialized FCF_Record. This routine takes
16131 * care of the nonembedded mailbox operations.
16134 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
16137 union lpfc_sli4_cfg_shdr *shdr;
16138 uint32_t shdr_status, shdr_add_status;
16140 virt_addr = mboxq->sge_array->addr[0];
16141 /* The IOCTL status is embedded in the mailbox subheader. */
16142 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
16143 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16144 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16146 if ((shdr_status || shdr_add_status) &&
16147 (shdr_status != STATUS_FCF_IN_USE))
16148 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16149 "2558 ADD_FCF_RECORD mailbox failed with "
16150 "status x%x add_status x%x\n",
16151 shdr_status, shdr_add_status);
16153 lpfc_sli4_mbox_cmd_free(phba, mboxq);
16157 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
16158 * @phba: pointer to lpfc hba data structure.
16159 * @fcf_record: pointer to the initialized fcf record to add.
16161 * This routine is invoked to manually add a single FCF record. The caller
16162 * must pass a completely initialized FCF_Record. This routine takes
16163 * care of the nonembedded mailbox operations.
16166 lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
16169 LPFC_MBOXQ_t *mboxq;
16172 struct lpfc_mbx_sge sge;
16173 uint32_t alloc_len, req_len;
16176 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16178 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16179 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
16183 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
16186 /* Allocate DMA memory and set up the non-embedded mailbox command */
16187 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
16188 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
16189 req_len, LPFC_SLI4_MBX_NEMBED);
16190 if (alloc_len < req_len) {
16191 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16192 "2523 Allocated DMA memory size (x%x) is "
16193 "less than the requested DMA memory "
16194 "size (x%x)\n", alloc_len, req_len);
16195 lpfc_sli4_mbox_cmd_free(phba, mboxq);
16200 * Get the first SGE entry from the non-embedded DMA memory. This
16201 * routine only uses a single SGE.
16203 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
16204 virt_addr = mboxq->sge_array->addr[0];
16206 * Configure the FCF record for FCFI 0. This is the driver's
16207 * hardcoded default and gets used in nonFIP mode.
16209 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
16210 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
16211 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
16214 * Copy the fcf_index and the FCF Record Data. The data starts after
16215 * the FCoE header plus word10. The data copy needs to be endian
16218 bytep += sizeof(uint32_t);
16219 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
16220 mboxq->vport = phba->pport;
16221 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
16222 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
16223 if (rc == MBX_NOT_FINISHED) {
16224 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16225 "2515 ADD_FCF_RECORD mailbox failed with "
16226 "status 0x%x\n", rc);
16227 lpfc_sli4_mbox_cmd_free(phba, mboxq);
16236 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
16237 * @phba: pointer to lpfc hba data structure.
16238 * @fcf_record: pointer to the fcf record to write the default data.
16239 * @fcf_index: FCF table entry index.
16241 * This routine is invoked to build the driver's default FCF record. The
16242 * values used are hardcoded. This routine handles memory initialization.
16246 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
16247 struct fcf_record *fcf_record,
16248 uint16_t fcf_index)
16250 memset(fcf_record, 0, sizeof(struct fcf_record));
16251 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
16252 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
16253 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
16254 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
16255 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
16256 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
16257 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
16258 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
16259 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
16260 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
16261 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
16262 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
16263 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
16264 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
16265 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
16266 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
16267 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
16268 /* Set the VLAN bit map */
16269 if (phba->valid_vlan) {
16270 fcf_record->vlan_bitmap[phba->vlan_id / 8]
16271 = 1 << (phba->vlan_id % 8);
16276 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
16277 * @phba: pointer to lpfc hba data structure.
16278 * @fcf_index: FCF table entry offset.
16280 * This routine is invoked to scan the entire FCF table by reading FCF
16281 * record and processing it one at a time starting from the @fcf_index
16282 * for initial FCF discovery or fast FCF failover rediscovery.
16284 * Return 0 if the mailbox command is submitted successfully, none 0
16288 lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
16291 LPFC_MBOXQ_t *mboxq;
16293 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
16294 phba->fcoe_cvl_eventtag_attn = phba->fcoe_cvl_eventtag;
16295 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16297 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16298 "2000 Failed to allocate mbox for "
16301 goto fail_fcf_scan;
16303 /* Construct the read FCF record mailbox command */
16304 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
16307 goto fail_fcf_scan;
16309 /* Issue the mailbox command asynchronously */
16310 mboxq->vport = phba->pport;
16311 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
16313 spin_lock_irq(&phba->hbalock);
16314 phba->hba_flag |= FCF_TS_INPROG;
16315 spin_unlock_irq(&phba->hbalock);
16317 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
16318 if (rc == MBX_NOT_FINISHED)
16321 /* Reset eligible FCF count for new scan */
16322 if (fcf_index == LPFC_FCOE_FCF_GET_FIRST)
16323 phba->fcf.eligible_fcf_cnt = 0;
16329 lpfc_sli4_mbox_cmd_free(phba, mboxq);
16330 /* FCF scan failed, clear FCF_TS_INPROG flag */
16331 spin_lock_irq(&phba->hbalock);
16332 phba->hba_flag &= ~FCF_TS_INPROG;
16333 spin_unlock_irq(&phba->hbalock);
16339 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
16340 * @phba: pointer to lpfc hba data structure.
16341 * @fcf_index: FCF table entry offset.
16343 * This routine is invoked to read an FCF record indicated by @fcf_index
16344 * and to use it for FLOGI roundrobin FCF failover.
16346 * Return 0 if the mailbox command is submitted successfully, none 0
16350 lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
16353 LPFC_MBOXQ_t *mboxq;
16355 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16357 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
16358 "2763 Failed to allocate mbox for "
16361 goto fail_fcf_read;
16363 /* Construct the read FCF record mailbox command */
16364 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
16367 goto fail_fcf_read;
16369 /* Issue the mailbox command asynchronously */
16370 mboxq->vport = phba->pport;
16371 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
16372 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
16373 if (rc == MBX_NOT_FINISHED)
16379 if (error && mboxq)
16380 lpfc_sli4_mbox_cmd_free(phba, mboxq);
16385 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
16386 * @phba: pointer to lpfc hba data structure.
16387 * @fcf_index: FCF table entry offset.
16389 * This routine is invoked to read an FCF record indicated by @fcf_index to
16390 * determine whether it's eligible for FLOGI roundrobin failover list.
16392 * Return 0 if the mailbox command is submitted successfully, none 0
16396 lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
16399 LPFC_MBOXQ_t *mboxq;
16401 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16403 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
16404 "2758 Failed to allocate mbox for "
16407 goto fail_fcf_read;
16409 /* Construct the read FCF record mailbox command */
16410 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
16413 goto fail_fcf_read;
16415 /* Issue the mailbox command asynchronously */
16416 mboxq->vport = phba->pport;
16417 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
16418 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
16419 if (rc == MBX_NOT_FINISHED)
16425 if (error && mboxq)
16426 lpfc_sli4_mbox_cmd_free(phba, mboxq);
16431 * lpfc_check_next_fcf_pri_level
16432 * phba pointer to the lpfc_hba struct for this port.
16433 * This routine is called from the lpfc_sli4_fcf_rr_next_index_get
16434 * routine when the rr_bmask is empty. The FCF indecies are put into the
16435 * rr_bmask based on their priority level. Starting from the highest priority
16436 * to the lowest. The most likely FCF candidate will be in the highest
16437 * priority group. When this routine is called it searches the fcf_pri list for
16438 * next lowest priority group and repopulates the rr_bmask with only those
16441 * 1=success 0=failure
16444 lpfc_check_next_fcf_pri_level(struct lpfc_hba *phba)
16446 uint16_t next_fcf_pri;
16447 uint16_t last_index;
16448 struct lpfc_fcf_pri *fcf_pri;
16452 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
16453 LPFC_SLI4_FCF_TBL_INDX_MAX);
16454 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
16455 "3060 Last IDX %d\n", last_index);
16457 /* Verify the priority list has 2 or more entries */
16458 spin_lock_irq(&phba->hbalock);
16459 if (list_empty(&phba->fcf.fcf_pri_list) ||
16460 list_is_singular(&phba->fcf.fcf_pri_list)) {
16461 spin_unlock_irq(&phba->hbalock);
16462 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
16463 "3061 Last IDX %d\n", last_index);
16464 return 0; /* Empty rr list */
16466 spin_unlock_irq(&phba->hbalock);
16470 * Clear the rr_bmask and set all of the bits that are at this
16473 memset(phba->fcf.fcf_rr_bmask, 0,
16474 sizeof(*phba->fcf.fcf_rr_bmask));
16475 spin_lock_irq(&phba->hbalock);
16476 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
16477 if (fcf_pri->fcf_rec.flag & LPFC_FCF_FLOGI_FAILED)
16480 * the 1st priority that has not FLOGI failed
16481 * will be the highest.
16484 next_fcf_pri = fcf_pri->fcf_rec.priority;
16485 spin_unlock_irq(&phba->hbalock);
16486 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
16487 rc = lpfc_sli4_fcf_rr_index_set(phba,
16488 fcf_pri->fcf_rec.fcf_index);
16492 spin_lock_irq(&phba->hbalock);
16495 * if next_fcf_pri was not set above and the list is not empty then
16496 * we have failed flogis on all of them. So reset flogi failed
16497 * and start at the beginning.
16499 if (!next_fcf_pri && !list_empty(&phba->fcf.fcf_pri_list)) {
16500 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
16501 fcf_pri->fcf_rec.flag &= ~LPFC_FCF_FLOGI_FAILED;
16503 * the 1st priority that has not FLOGI failed
16504 * will be the highest.
16507 next_fcf_pri = fcf_pri->fcf_rec.priority;
16508 spin_unlock_irq(&phba->hbalock);
16509 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
16510 rc = lpfc_sli4_fcf_rr_index_set(phba,
16511 fcf_pri->fcf_rec.fcf_index);
16515 spin_lock_irq(&phba->hbalock);
16519 spin_unlock_irq(&phba->hbalock);
16524 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
16525 * @phba: pointer to lpfc hba data structure.
16527 * This routine is to get the next eligible FCF record index in a round
16528 * robin fashion. If the next eligible FCF record index equals to the
16529 * initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
16530 * shall be returned, otherwise, the next eligible FCF record's index
16531 * shall be returned.
16534 lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
16536 uint16_t next_fcf_index;
16539 /* Search start from next bit of currently registered FCF index */
16540 next_fcf_index = phba->fcf.current_rec.fcf_indx;
16543 /* Determine the next fcf index to check */
16544 next_fcf_index = (next_fcf_index + 1) % LPFC_SLI4_FCF_TBL_INDX_MAX;
16545 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
16546 LPFC_SLI4_FCF_TBL_INDX_MAX,
16549 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
16550 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
16552 * If we have wrapped then we need to clear the bits that
16553 * have been tested so that we can detect when we should
16554 * change the priority level.
16556 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
16557 LPFC_SLI4_FCF_TBL_INDX_MAX, 0);
16561 /* Check roundrobin failover list empty condition */
16562 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX ||
16563 next_fcf_index == phba->fcf.current_rec.fcf_indx) {
16565 * If next fcf index is not found check if there are lower
16566 * Priority level fcf's in the fcf_priority list.
16567 * Set up the rr_bmask with all of the avaiable fcf bits
16568 * at that level and continue the selection process.
16570 if (lpfc_check_next_fcf_pri_level(phba))
16571 goto initial_priority;
16572 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
16573 "2844 No roundrobin failover FCF available\n");
16575 return LPFC_FCOE_FCF_NEXT_NONE;
16578 if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX &&
16579 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag &
16580 LPFC_FCF_FLOGI_FAILED) {
16581 if (list_is_singular(&phba->fcf.fcf_pri_list))
16582 return LPFC_FCOE_FCF_NEXT_NONE;
16584 goto next_priority;
16587 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
16588 "2845 Get next roundrobin failover FCF (x%x)\n",
16591 return next_fcf_index;
16595 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
16596 * @phba: pointer to lpfc hba data structure.
16598 * This routine sets the FCF record index in to the eligible bmask for
16599 * roundrobin failover search. It checks to make sure that the index
16600 * does not go beyond the range of the driver allocated bmask dimension
16601 * before setting the bit.
16603 * Returns 0 if the index bit successfully set, otherwise, it returns
16607 lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
16609 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
16610 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
16611 "2610 FCF (x%x) reached driver's book "
16612 "keeping dimension:x%x\n",
16613 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
16616 /* Set the eligible FCF record index bmask */
16617 set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
16619 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
16620 "2790 Set FCF (x%x) to roundrobin FCF failover "
16621 "bmask\n", fcf_index);
16627 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
16628 * @phba: pointer to lpfc hba data structure.
16630 * This routine clears the FCF record index from the eligible bmask for
16631 * roundrobin failover search. It checks to make sure that the index
16632 * does not go beyond the range of the driver allocated bmask dimension
16633 * before clearing the bit.
16636 lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
16638 struct lpfc_fcf_pri *fcf_pri, *fcf_pri_next;
16639 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
16640 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
16641 "2762 FCF (x%x) reached driver's book "
16642 "keeping dimension:x%x\n",
16643 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
16646 /* Clear the eligible FCF record index bmask */
16647 spin_lock_irq(&phba->hbalock);
16648 list_for_each_entry_safe(fcf_pri, fcf_pri_next, &phba->fcf.fcf_pri_list,
16650 if (fcf_pri->fcf_rec.fcf_index == fcf_index) {
16651 list_del_init(&fcf_pri->list);
16655 spin_unlock_irq(&phba->hbalock);
16656 clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
16658 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
16659 "2791 Clear FCF (x%x) from roundrobin failover "
16660 "bmask\n", fcf_index);
16664 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
16665 * @phba: pointer to lpfc hba data structure.
16667 * This routine is the completion routine for the rediscover FCF table mailbox
16668 * command. If the mailbox command returned failure, it will try to stop the
16669 * FCF rediscover wait timer.
16672 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
16674 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
16675 uint32_t shdr_status, shdr_add_status;
16677 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
16679 shdr_status = bf_get(lpfc_mbox_hdr_status,
16680 &redisc_fcf->header.cfg_shdr.response);
16681 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
16682 &redisc_fcf->header.cfg_shdr.response);
16683 if (shdr_status || shdr_add_status) {
16684 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
16685 "2746 Requesting for FCF rediscovery failed "
16686 "status x%x add_status x%x\n",
16687 shdr_status, shdr_add_status);
16688 if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
16689 spin_lock_irq(&phba->hbalock);
16690 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
16691 spin_unlock_irq(&phba->hbalock);
16693 * CVL event triggered FCF rediscover request failed,
16694 * last resort to re-try current registered FCF entry.
16696 lpfc_retry_pport_discovery(phba);
16698 spin_lock_irq(&phba->hbalock);
16699 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
16700 spin_unlock_irq(&phba->hbalock);
16702 * DEAD FCF event triggered FCF rediscover request
16703 * failed, last resort to fail over as a link down
16704 * to FCF registration.
16706 lpfc_sli4_fcf_dead_failthrough(phba);
16709 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
16710 "2775 Start FCF rediscover quiescent timer\n");
16712 * Start FCF rediscovery wait timer for pending FCF
16713 * before rescan FCF record table.
16715 lpfc_fcf_redisc_wait_start_timer(phba);
16718 mempool_free(mbox, phba->mbox_mem_pool);
16722 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
16723 * @phba: pointer to lpfc hba data structure.
16725 * This routine is invoked to request for rediscovery of the entire FCF table
16729 lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
16731 LPFC_MBOXQ_t *mbox;
16732 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
16735 /* Cancel retry delay timers to all vports before FCF rediscover */
16736 lpfc_cancel_all_vport_retry_delay_timer(phba);
16738 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16740 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16741 "2745 Failed to allocate mbox for "
16742 "requesting FCF rediscover.\n");
16746 length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
16747 sizeof(struct lpfc_sli4_cfg_mhdr));
16748 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16749 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
16750 length, LPFC_SLI4_MBX_EMBED);
16752 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
16753 /* Set count to 0 for invalidating the entire FCF database */
16754 bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
16756 /* Issue the mailbox command asynchronously */
16757 mbox->vport = phba->pport;
16758 mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
16759 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
16761 if (rc == MBX_NOT_FINISHED) {
16762 mempool_free(mbox, phba->mbox_mem_pool);
16769 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
16770 * @phba: pointer to lpfc hba data structure.
16772 * This function is the failover routine as a last resort to the FCF DEAD
16773 * event when driver failed to perform fast FCF failover.
16776 lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
16778 uint32_t link_state;
16781 * Last resort as FCF DEAD event failover will treat this as
16782 * a link down, but save the link state because we don't want
16783 * it to be changed to Link Down unless it is already down.
16785 link_state = phba->link_state;
16786 lpfc_linkdown(phba);
16787 phba->link_state = link_state;
16789 /* Unregister FCF if no devices connected to it */
16790 lpfc_unregister_unused_fcf(phba);
16794 * lpfc_sli_get_config_region23 - Get sli3 port region 23 data.
16795 * @phba: pointer to lpfc hba data structure.
16796 * @rgn23_data: pointer to configure region 23 data.
16798 * This function gets SLI3 port configure region 23 data through memory dump
16799 * mailbox command. When it successfully retrieves data, the size of the data
16800 * will be returned, otherwise, 0 will be returned.
16803 lpfc_sli_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
16805 LPFC_MBOXQ_t *pmb = NULL;
16807 uint32_t offset = 0;
16813 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16815 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16816 "2600 failed to allocate mailbox memory\n");
16822 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
16823 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
16825 if (rc != MBX_SUCCESS) {
16826 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
16827 "2601 failed to read config "
16828 "region 23, rc 0x%x Status 0x%x\n",
16829 rc, mb->mbxStatus);
16830 mb->un.varDmp.word_cnt = 0;
16833 * dump mem may return a zero when finished or we got a
16834 * mailbox error, either way we are done.
16836 if (mb->un.varDmp.word_cnt == 0)
16838 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
16839 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
16841 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
16842 rgn23_data + offset,
16843 mb->un.varDmp.word_cnt);
16844 offset += mb->un.varDmp.word_cnt;
16845 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
16847 mempool_free(pmb, phba->mbox_mem_pool);
16852 * lpfc_sli4_get_config_region23 - Get sli4 port region 23 data.
16853 * @phba: pointer to lpfc hba data structure.
16854 * @rgn23_data: pointer to configure region 23 data.
16856 * This function gets SLI4 port configure region 23 data through memory dump
16857 * mailbox command. When it successfully retrieves data, the size of the data
16858 * will be returned, otherwise, 0 will be returned.
16861 lpfc_sli4_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
16863 LPFC_MBOXQ_t *mboxq = NULL;
16864 struct lpfc_dmabuf *mp = NULL;
16865 struct lpfc_mqe *mqe;
16866 uint32_t data_length = 0;
16872 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16874 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16875 "3105 failed to allocate mailbox memory\n");
16879 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq))
16881 mqe = &mboxq->u.mqe;
16882 mp = (struct lpfc_dmabuf *) mboxq->context1;
16883 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
16886 data_length = mqe->un.mb_words[5];
16887 if (data_length == 0)
16889 if (data_length > DMP_RGN23_SIZE) {
16893 lpfc_sli_pcimem_bcopy((char *)mp->virt, rgn23_data, data_length);
16895 mempool_free(mboxq, phba->mbox_mem_pool);
16897 lpfc_mbuf_free(phba, mp->virt, mp->phys);
16900 return data_length;
16904 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
16905 * @phba: pointer to lpfc hba data structure.
16907 * This function read region 23 and parse TLV for port status to
16908 * decide if the user disaled the port. If the TLV indicates the
16909 * port is disabled, the hba_flag is set accordingly.
16912 lpfc_sli_read_link_ste(struct lpfc_hba *phba)
16914 uint8_t *rgn23_data = NULL;
16915 uint32_t if_type, data_size, sub_tlv_len, tlv_offset;
16916 uint32_t offset = 0;
16918 /* Get adapter Region 23 data */
16919 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
16923 if (phba->sli_rev < LPFC_SLI_REV4)
16924 data_size = lpfc_sli_get_config_region23(phba, rgn23_data);
16926 if_type = bf_get(lpfc_sli_intf_if_type,
16927 &phba->sli4_hba.sli_intf);
16928 if (if_type == LPFC_SLI_INTF_IF_TYPE_0)
16930 data_size = lpfc_sli4_get_config_region23(phba, rgn23_data);
16936 /* Check the region signature first */
16937 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
16938 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16939 "2619 Config region 23 has bad signature\n");
16944 /* Check the data structure version */
16945 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
16946 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16947 "2620 Config region 23 has bad version\n");
16952 /* Parse TLV entries in the region */
16953 while (offset < data_size) {
16954 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
16957 * If the TLV is not driver specific TLV or driver id is
16958 * not linux driver id, skip the record.
16960 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
16961 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
16962 (rgn23_data[offset + 3] != 0)) {
16963 offset += rgn23_data[offset + 1] * 4 + 4;
16967 /* Driver found a driver specific TLV in the config region */
16968 sub_tlv_len = rgn23_data[offset + 1] * 4;
16973 * Search for configured port state sub-TLV.
16975 while ((offset < data_size) &&
16976 (tlv_offset < sub_tlv_len)) {
16977 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
16982 if (rgn23_data[offset] != PORT_STE_TYPE) {
16983 offset += rgn23_data[offset + 1] * 4 + 4;
16984 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
16988 /* This HBA contains PORT_STE configured */
16989 if (!rgn23_data[offset + 2])
16990 phba->hba_flag |= LINK_DISABLED;
17002 * lpfc_wr_object - write an object to the firmware
17003 * @phba: HBA structure that indicates port to create a queue on.
17004 * @dmabuf_list: list of dmabufs to write to the port.
17005 * @size: the total byte value of the objects to write to the port.
17006 * @offset: the current offset to be used to start the transfer.
17008 * This routine will create a wr_object mailbox command to send to the port.
17009 * the mailbox command will be constructed using the dma buffers described in
17010 * @dmabuf_list to create a list of BDEs. This routine will fill in as many
17011 * BDEs that the imbedded mailbox can support. The @offset variable will be
17012 * used to indicate the starting offset of the transfer and will also return
17013 * the offset after the write object mailbox has completed. @size is used to
17014 * determine the end of the object and whether the eof bit should be set.
17016 * Return 0 is successful and offset will contain the the new offset to use
17017 * for the next write.
17018 * Return negative value for error cases.
17021 lpfc_wr_object(struct lpfc_hba *phba, struct list_head *dmabuf_list,
17022 uint32_t size, uint32_t *offset)
17024 struct lpfc_mbx_wr_object *wr_object;
17025 LPFC_MBOXQ_t *mbox;
17027 uint32_t shdr_status, shdr_add_status;
17029 union lpfc_sli4_cfg_shdr *shdr;
17030 struct lpfc_dmabuf *dmabuf;
17031 uint32_t written = 0;
17033 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17037 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
17038 LPFC_MBOX_OPCODE_WRITE_OBJECT,
17039 sizeof(struct lpfc_mbx_wr_object) -
17040 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
17042 wr_object = (struct lpfc_mbx_wr_object *)&mbox->u.mqe.un.wr_object;
17043 wr_object->u.request.write_offset = *offset;
17044 sprintf((uint8_t *)wr_object->u.request.object_name, "/");
17045 wr_object->u.request.object_name[0] =
17046 cpu_to_le32(wr_object->u.request.object_name[0]);
17047 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 0);
17048 list_for_each_entry(dmabuf, dmabuf_list, list) {
17049 if (i >= LPFC_MBX_WR_CONFIG_MAX_BDE || written >= size)
17051 wr_object->u.request.bde[i].addrLow = putPaddrLow(dmabuf->phys);
17052 wr_object->u.request.bde[i].addrHigh =
17053 putPaddrHigh(dmabuf->phys);
17054 if (written + SLI4_PAGE_SIZE >= size) {
17055 wr_object->u.request.bde[i].tus.f.bdeSize =
17057 written += (size - written);
17058 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 1);
17060 wr_object->u.request.bde[i].tus.f.bdeSize =
17062 written += SLI4_PAGE_SIZE;
17066 wr_object->u.request.bde_count = i;
17067 bf_set(lpfc_wr_object_write_length, &wr_object->u.request, written);
17068 if (!phba->sli4_hba.intr_enable)
17069 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
17071 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
17072 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
17074 /* The IOCTL status is embedded in the mailbox subheader. */
17075 shdr = (union lpfc_sli4_cfg_shdr *) &wr_object->header.cfg_shdr;
17076 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17077 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17078 if (rc != MBX_TIMEOUT)
17079 mempool_free(mbox, phba->mbox_mem_pool);
17080 if (shdr_status || shdr_add_status || rc) {
17081 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
17082 "3025 Write Object mailbox failed with "
17083 "status x%x add_status x%x, mbx status x%x\n",
17084 shdr_status, shdr_add_status, rc);
17087 *offset += wr_object->u.response.actual_write_length;
17092 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
17093 * @vport: pointer to vport data structure.
17095 * This function iterate through the mailboxq and clean up all REG_LOGIN
17096 * and REG_VPI mailbox commands associated with the vport. This function
17097 * is called when driver want to restart discovery of the vport due to
17098 * a Clear Virtual Link event.
17101 lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
17103 struct lpfc_hba *phba = vport->phba;
17104 LPFC_MBOXQ_t *mb, *nextmb;
17105 struct lpfc_dmabuf *mp;
17106 struct lpfc_nodelist *ndlp;
17107 struct lpfc_nodelist *act_mbx_ndlp = NULL;
17108 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
17109 LIST_HEAD(mbox_cmd_list);
17110 uint8_t restart_loop;
17112 /* Clean up internally queued mailbox commands with the vport */
17113 spin_lock_irq(&phba->hbalock);
17114 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
17115 if (mb->vport != vport)
17118 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
17119 (mb->u.mb.mbxCommand != MBX_REG_VPI))
17122 list_del(&mb->list);
17123 list_add_tail(&mb->list, &mbox_cmd_list);
17125 /* Clean up active mailbox command with the vport */
17126 mb = phba->sli.mbox_active;
17127 if (mb && (mb->vport == vport)) {
17128 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
17129 (mb->u.mb.mbxCommand == MBX_REG_VPI))
17130 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
17131 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
17132 act_mbx_ndlp = (struct lpfc_nodelist *)mb->context2;
17133 /* Put reference count for delayed processing */
17134 act_mbx_ndlp = lpfc_nlp_get(act_mbx_ndlp);
17135 /* Unregister the RPI when mailbox complete */
17136 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
17139 /* Cleanup any mailbox completions which are not yet processed */
17142 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
17144 * If this mailox is already processed or it is
17145 * for another vport ignore it.
17147 if ((mb->vport != vport) ||
17148 (mb->mbox_flag & LPFC_MBX_IMED_UNREG))
17151 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
17152 (mb->u.mb.mbxCommand != MBX_REG_VPI))
17155 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
17156 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
17157 ndlp = (struct lpfc_nodelist *)mb->context2;
17158 /* Unregister the RPI when mailbox complete */
17159 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
17161 spin_unlock_irq(&phba->hbalock);
17162 spin_lock(shost->host_lock);
17163 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
17164 spin_unlock(shost->host_lock);
17165 spin_lock_irq(&phba->hbalock);
17169 } while (restart_loop);
17171 spin_unlock_irq(&phba->hbalock);
17173 /* Release the cleaned-up mailbox commands */
17174 while (!list_empty(&mbox_cmd_list)) {
17175 list_remove_head(&mbox_cmd_list, mb, LPFC_MBOXQ_t, list);
17176 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
17177 mp = (struct lpfc_dmabuf *) (mb->context1);
17179 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
17182 ndlp = (struct lpfc_nodelist *) mb->context2;
17183 mb->context2 = NULL;
17185 spin_lock(shost->host_lock);
17186 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
17187 spin_unlock(shost->host_lock);
17188 lpfc_nlp_put(ndlp);
17191 mempool_free(mb, phba->mbox_mem_pool);
17194 /* Release the ndlp with the cleaned-up active mailbox command */
17195 if (act_mbx_ndlp) {
17196 spin_lock(shost->host_lock);
17197 act_mbx_ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
17198 spin_unlock(shost->host_lock);
17199 lpfc_nlp_put(act_mbx_ndlp);
17204 * lpfc_drain_txq - Drain the txq
17205 * @phba: Pointer to HBA context object.
17207 * This function attempt to submit IOCBs on the txq
17208 * to the adapter. For SLI4 adapters, the txq contains
17209 * ELS IOCBs that have been deferred because the there
17210 * are no SGLs. This congestion can occur with large
17211 * vport counts during node discovery.
17215 lpfc_drain_txq(struct lpfc_hba *phba)
17217 LIST_HEAD(completions);
17218 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
17219 struct lpfc_iocbq *piocbq = NULL;
17220 unsigned long iflags = 0;
17221 char *fail_msg = NULL;
17222 struct lpfc_sglq *sglq;
17223 union lpfc_wqe wqe;
17224 uint32_t txq_cnt = 0;
17226 spin_lock_irqsave(&pring->ring_lock, iflags);
17227 list_for_each_entry(piocbq, &pring->txq, list) {
17231 if (txq_cnt > pring->txq_max)
17232 pring->txq_max = txq_cnt;
17234 spin_unlock_irqrestore(&pring->ring_lock, iflags);
17236 while (!list_empty(&pring->txq)) {
17237 spin_lock_irqsave(&pring->ring_lock, iflags);
17239 piocbq = lpfc_sli_ringtx_get(phba, pring);
17241 spin_unlock_irqrestore(&pring->ring_lock, iflags);
17242 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17243 "2823 txq empty and txq_cnt is %d\n ",
17247 sglq = __lpfc_sli_get_sglq(phba, piocbq);
17249 __lpfc_sli_ringtx_put(phba, pring, piocbq);
17250 spin_unlock_irqrestore(&pring->ring_lock, iflags);
17255 /* The xri and iocb resources secured,
17256 * attempt to issue request
17258 piocbq->sli4_lxritag = sglq->sli4_lxritag;
17259 piocbq->sli4_xritag = sglq->sli4_xritag;
17260 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocbq, sglq))
17261 fail_msg = "to convert bpl to sgl";
17262 else if (lpfc_sli4_iocb2wqe(phba, piocbq, &wqe))
17263 fail_msg = "to convert iocb to wqe";
17264 else if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
17265 fail_msg = " - Wq is full";
17267 lpfc_sli_ringtxcmpl_put(phba, pring, piocbq);
17270 /* Failed means we can't issue and need to cancel */
17271 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17272 "2822 IOCB failed %s iotag 0x%x "
17275 piocbq->iotag, piocbq->sli4_xritag);
17276 list_add_tail(&piocbq->list, &completions);
17279 spin_unlock_irqrestore(&pring->ring_lock, iflags);
17282 /* Cancel all the IOCBs that cannot be issued */
17283 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
17284 IOERR_SLI_ABORTED);