1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2017-2019 Broadcom. All Rights Reserved. The term *
5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. *
6 * Copyright (C) 2004-2016 Emulex. All rights reserved. *
7 * EMULEX and SLI are trademarks of Emulex. *
9 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
11 * This program is free software; you can redistribute it and/or *
12 * modify it under the terms of version 2 of the GNU General *
13 * Public License as published by the Free Software Foundation. *
14 * This program is distributed in the hope that it will be useful. *
15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
19 * TO BE LEGALLY INVALID. See the GNU General Public License for *
20 * more details, a copy of which can be found in the file COPYING *
21 * included with this package. *
22 *******************************************************************/
24 #include <linux/blkdev.h>
25 #include <linux/pci.h>
26 #include <linux/interrupt.h>
27 #include <linux/delay.h>
28 #include <linux/slab.h>
29 #include <linux/lockdep.h>
31 #include <scsi/scsi.h>
32 #include <scsi/scsi_cmnd.h>
33 #include <scsi/scsi_device.h>
34 #include <scsi/scsi_host.h>
35 #include <scsi/scsi_transport_fc.h>
36 #include <scsi/fc/fc_fs.h>
37 #include <linux/aer.h>
39 #include <asm/set_memory.h>
42 #include <linux/nvme-fc-driver.h>
47 #include "lpfc_sli4.h"
49 #include "lpfc_disc.h"
51 #include "lpfc_scsi.h"
52 #include "lpfc_nvme.h"
53 #include "lpfc_nvmet.h"
54 #include "lpfc_crtn.h"
55 #include "lpfc_logmsg.h"
56 #include "lpfc_compat.h"
57 #include "lpfc_debugfs.h"
58 #include "lpfc_vport.h"
59 #include "lpfc_version.h"
61 /* There are only four IOCB completion types. */
62 typedef enum _lpfc_iocb_type {
70 /* Provide function prototypes local to this module. */
71 static int lpfc_sli_issue_mbox_s4(struct lpfc_hba *, LPFC_MBOXQ_t *,
73 static int lpfc_sli4_read_rev(struct lpfc_hba *, LPFC_MBOXQ_t *,
74 uint8_t *, uint32_t *);
75 static struct lpfc_iocbq *lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *,
77 static void lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *,
79 static void lpfc_sli4_handle_mds_loopback(struct lpfc_vport *vport,
80 struct hbq_dmabuf *dmabuf);
81 static bool lpfc_sli4_fp_handle_cqe(struct lpfc_hba *phba,
82 struct lpfc_queue *cq, struct lpfc_cqe *cqe);
83 static int lpfc_sli4_post_sgl_list(struct lpfc_hba *, struct list_head *,
85 static void lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba,
86 struct lpfc_queue *eq,
87 struct lpfc_eqe *eqe);
88 static bool lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba);
89 static bool lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba);
92 lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq)
97 #if defined(CONFIG_64BIT) && defined(__LITTLE_ENDIAN)
99 * lpfc_sli4_pcimem_bcopy - SLI4 memory copy function
100 * @srcp: Source memory pointer.
101 * @destp: Destination memory pointer.
102 * @cnt: Number of words required to be copied.
103 * Must be a multiple of sizeof(uint64_t)
105 * This function is used for copying data between driver memory
106 * and the SLI WQ. This function also changes the endianness
107 * of each word if native endianness is different from SLI
108 * endianness. This function can be called with or without
112 lpfc_sli4_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
114 uint64_t *src = srcp;
115 uint64_t *dest = destp;
118 for (i = 0; i < (int)cnt; i += sizeof(uint64_t))
122 #define lpfc_sli4_pcimem_bcopy(a, b, c) lpfc_sli_pcimem_bcopy(a, b, c)
126 * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
127 * @q: The Work Queue to operate on.
128 * @wqe: The work Queue Entry to put on the Work queue.
130 * This routine will copy the contents of @wqe to the next available entry on
131 * the @q. This function will then ring the Work Queue Doorbell to signal the
132 * HBA to start processing the Work Queue Entry. This function returns 0 if
133 * successful. If no entries are available on @q then this function will return
135 * The caller is expected to hold the hbalock when calling this routine.
138 lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe128 *wqe)
140 union lpfc_wqe *temp_wqe;
141 struct lpfc_register doorbell;
148 /* sanity check on queue memory */
151 temp_wqe = lpfc_sli4_qe(q, q->host_index);
153 /* If the host has not yet processed the next entry then we are done */
154 idx = ((q->host_index + 1) % q->entry_count);
155 if (idx == q->hba_index) {
160 /* set consumption flag every once in a while */
161 if (!((q->host_index + 1) % q->notify_interval))
162 bf_set(wqe_wqec, &wqe->generic.wqe_com, 1);
164 bf_set(wqe_wqec, &wqe->generic.wqe_com, 0);
165 if (q->phba->sli3_options & LPFC_SLI4_PHWQ_ENABLED)
166 bf_set(wqe_wqid, &wqe->generic.wqe_com, q->queue_id);
167 lpfc_sli4_pcimem_bcopy(wqe, temp_wqe, q->entry_size);
168 if (q->dpp_enable && q->phba->cfg_enable_dpp) {
169 /* write to DPP aperture taking advatage of Combined Writes */
170 tmp = (uint8_t *)temp_wqe;
172 for (i = 0; i < q->entry_size; i += sizeof(uint64_t))
173 __raw_writeq(*((uint64_t *)(tmp + i)),
176 for (i = 0; i < q->entry_size; i += sizeof(uint32_t))
177 __raw_writel(*((uint32_t *)(tmp + i)),
181 /* ensure WQE bcopy and DPP flushed before doorbell write */
184 /* Update the host index before invoking device */
185 host_index = q->host_index;
191 if (q->db_format == LPFC_DB_LIST_FORMAT) {
192 if (q->dpp_enable && q->phba->cfg_enable_dpp) {
193 bf_set(lpfc_if6_wq_db_list_fm_num_posted, &doorbell, 1);
194 bf_set(lpfc_if6_wq_db_list_fm_dpp, &doorbell, 1);
195 bf_set(lpfc_if6_wq_db_list_fm_dpp_id, &doorbell,
197 bf_set(lpfc_if6_wq_db_list_fm_id, &doorbell,
200 bf_set(lpfc_wq_db_list_fm_num_posted, &doorbell, 1);
201 bf_set(lpfc_wq_db_list_fm_id, &doorbell, q->queue_id);
203 /* Leave bits <23:16> clear for if_type 6 dpp */
204 if_type = bf_get(lpfc_sli_intf_if_type,
205 &q->phba->sli4_hba.sli_intf);
206 if (if_type != LPFC_SLI_INTF_IF_TYPE_6)
207 bf_set(lpfc_wq_db_list_fm_index, &doorbell,
210 } else if (q->db_format == LPFC_DB_RING_FORMAT) {
211 bf_set(lpfc_wq_db_ring_fm_num_posted, &doorbell, 1);
212 bf_set(lpfc_wq_db_ring_fm_id, &doorbell, q->queue_id);
216 writel(doorbell.word0, q->db_regaddr);
222 * lpfc_sli4_wq_release - Updates internal hba index for WQ
223 * @q: The Work Queue to operate on.
224 * @index: The index to advance the hba index to.
226 * This routine will update the HBA index of a queue to reflect consumption of
227 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
228 * an entry the host calls this function to update the queue's internal
229 * pointers. This routine returns the number of entries that were consumed by
233 lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index)
235 uint32_t released = 0;
237 /* sanity check on queue memory */
241 if (q->hba_index == index)
244 q->hba_index = ((q->hba_index + 1) % q->entry_count);
246 } while (q->hba_index != index);
251 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
252 * @q: The Mailbox Queue to operate on.
253 * @wqe: The Mailbox Queue Entry to put on the Work queue.
255 * This routine will copy the contents of @mqe to the next available entry on
256 * the @q. This function will then ring the Work Queue Doorbell to signal the
257 * HBA to start processing the Work Queue Entry. This function returns 0 if
258 * successful. If no entries are available on @q then this function will return
260 * The caller is expected to hold the hbalock when calling this routine.
263 lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
265 struct lpfc_mqe *temp_mqe;
266 struct lpfc_register doorbell;
268 /* sanity check on queue memory */
271 temp_mqe = lpfc_sli4_qe(q, q->host_index);
273 /* If the host has not yet processed the next entry then we are done */
274 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
276 lpfc_sli4_pcimem_bcopy(mqe, temp_mqe, q->entry_size);
277 /* Save off the mailbox pointer for completion */
278 q->phba->mbox = (MAILBOX_t *)temp_mqe;
280 /* Update the host index before invoking device */
281 q->host_index = ((q->host_index + 1) % q->entry_count);
285 bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1);
286 bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id);
287 writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr);
292 * lpfc_sli4_mq_release - Updates internal hba index for MQ
293 * @q: The Mailbox Queue to operate on.
295 * This routine will update the HBA index of a queue to reflect consumption of
296 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
297 * an entry the host calls this function to update the queue's internal
298 * pointers. This routine returns the number of entries that were consumed by
302 lpfc_sli4_mq_release(struct lpfc_queue *q)
304 /* sanity check on queue memory */
308 /* Clear the mailbox pointer for completion */
309 q->phba->mbox = NULL;
310 q->hba_index = ((q->hba_index + 1) % q->entry_count);
315 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
316 * @q: The Event Queue to get the first valid EQE from
318 * This routine will get the first valid Event Queue Entry from @q, update
319 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
320 * the Queue (no more work to do), or the Queue is full of EQEs that have been
321 * processed, but not popped back to the HBA then this routine will return NULL.
323 static struct lpfc_eqe *
324 lpfc_sli4_eq_get(struct lpfc_queue *q)
326 struct lpfc_eqe *eqe;
328 /* sanity check on queue memory */
331 eqe = lpfc_sli4_qe(q, q->host_index);
333 /* If the next EQE is not valid then we are done */
334 if (bf_get_le32(lpfc_eqe_valid, eqe) != q->qe_valid)
338 * insert barrier for instruction interlock : data from the hardware
339 * must have the valid bit checked before it can be copied and acted
340 * upon. Speculative instructions were allowing a bcopy at the start
341 * of lpfc_sli4_fp_handle_wcqe(), which is called immediately
342 * after our return, to copy data before the valid bit check above
343 * was done. As such, some of the copied data was stale. The barrier
344 * ensures the check is before any data is copied.
351 * lpfc_sli4_eq_clr_intr - Turn off interrupts from this EQ
352 * @q: The Event Queue to disable interrupts
356 lpfc_sli4_eq_clr_intr(struct lpfc_queue *q)
358 struct lpfc_register doorbell;
361 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
362 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
363 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
364 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
365 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
366 writel(doorbell.word0, q->phba->sli4_hba.EQDBregaddr);
370 * lpfc_sli4_if6_eq_clr_intr - Turn off interrupts from this EQ
371 * @q: The Event Queue to disable interrupts
375 lpfc_sli4_if6_eq_clr_intr(struct lpfc_queue *q)
377 struct lpfc_register doorbell;
380 bf_set(lpfc_if6_eq_doorbell_eqid, &doorbell, q->queue_id);
381 writel(doorbell.word0, q->phba->sli4_hba.EQDBregaddr);
385 * lpfc_sli4_write_eq_db - write EQ DB for eqe's consumed or arm state
386 * @phba: adapter with EQ
387 * @q: The Event Queue that the host has completed processing for.
388 * @count: Number of elements that have been consumed
389 * @arm: Indicates whether the host wants to arms this CQ.
391 * This routine will notify the HBA, by ringing the doorbell, that count
392 * number of EQEs have been processed. The @arm parameter indicates whether
393 * the queue should be rearmed when ringing the doorbell.
396 lpfc_sli4_write_eq_db(struct lpfc_hba *phba, struct lpfc_queue *q,
397 uint32_t count, bool arm)
399 struct lpfc_register doorbell;
401 /* sanity check on queue memory */
402 if (unlikely(!q || (count == 0 && !arm)))
405 /* ring doorbell for number popped */
408 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
409 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
411 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, count);
412 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
413 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
414 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
415 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
416 writel(doorbell.word0, q->phba->sli4_hba.EQDBregaddr);
417 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
418 if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
419 readl(q->phba->sli4_hba.EQDBregaddr);
423 * lpfc_sli4_if6_write_eq_db - write EQ DB for eqe's consumed or arm state
424 * @phba: adapter with EQ
425 * @q: The Event Queue that the host has completed processing for.
426 * @count: Number of elements that have been consumed
427 * @arm: Indicates whether the host wants to arms this CQ.
429 * This routine will notify the HBA, by ringing the doorbell, that count
430 * number of EQEs have been processed. The @arm parameter indicates whether
431 * the queue should be rearmed when ringing the doorbell.
434 lpfc_sli4_if6_write_eq_db(struct lpfc_hba *phba, struct lpfc_queue *q,
435 uint32_t count, bool arm)
437 struct lpfc_register doorbell;
439 /* sanity check on queue memory */
440 if (unlikely(!q || (count == 0 && !arm)))
443 /* ring doorbell for number popped */
446 bf_set(lpfc_if6_eq_doorbell_arm, &doorbell, 1);
447 bf_set(lpfc_if6_eq_doorbell_num_released, &doorbell, count);
448 bf_set(lpfc_if6_eq_doorbell_eqid, &doorbell, q->queue_id);
449 writel(doorbell.word0, q->phba->sli4_hba.EQDBregaddr);
450 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
451 if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
452 readl(q->phba->sli4_hba.EQDBregaddr);
456 __lpfc_sli4_consume_eqe(struct lpfc_hba *phba, struct lpfc_queue *eq,
457 struct lpfc_eqe *eqe)
459 if (!phba->sli4_hba.pc_sli4_params.eqav)
460 bf_set_le32(lpfc_eqe_valid, eqe, 0);
462 eq->host_index = ((eq->host_index + 1) % eq->entry_count);
464 /* if the index wrapped around, toggle the valid bit */
465 if (phba->sli4_hba.pc_sli4_params.eqav && !eq->host_index)
466 eq->qe_valid = (eq->qe_valid) ? 0 : 1;
470 lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
472 struct lpfc_eqe *eqe;
475 /* walk all the EQ entries and drop on the floor */
476 eqe = lpfc_sli4_eq_get(eq);
478 __lpfc_sli4_consume_eqe(phba, eq, eqe);
480 eqe = lpfc_sli4_eq_get(eq);
483 /* Clear and re-arm the EQ */
484 phba->sli4_hba.sli4_write_eq_db(phba, eq, count, LPFC_QUEUE_REARM);
488 lpfc_sli4_process_eq(struct lpfc_hba *phba, struct lpfc_queue *eq)
490 struct lpfc_eqe *eqe;
491 int count = 0, consumed = 0;
493 if (cmpxchg(&eq->queue_claimed, 0, 1) != 0)
496 eqe = lpfc_sli4_eq_get(eq);
498 lpfc_sli4_hba_handle_eqe(phba, eq, eqe);
499 __lpfc_sli4_consume_eqe(phba, eq, eqe);
502 if (!(++count % eq->max_proc_limit))
505 if (!(count % eq->notify_interval)) {
506 phba->sli4_hba.sli4_write_eq_db(phba, eq, consumed,
511 eqe = lpfc_sli4_eq_get(eq);
513 eq->EQ_processed += count;
515 /* Track the max number of EQEs processed in 1 intr */
516 if (count > eq->EQ_max_eqe)
517 eq->EQ_max_eqe = count;
519 eq->queue_claimed = 0;
522 /* Always clear and re-arm the EQ */
523 phba->sli4_hba.sli4_write_eq_db(phba, eq, consumed, LPFC_QUEUE_REARM);
529 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
530 * @q: The Completion Queue to get the first valid CQE from
532 * This routine will get the first valid Completion Queue Entry from @q, update
533 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
534 * the Queue (no more work to do), or the Queue is full of CQEs that have been
535 * processed, but not popped back to the HBA then this routine will return NULL.
537 static struct lpfc_cqe *
538 lpfc_sli4_cq_get(struct lpfc_queue *q)
540 struct lpfc_cqe *cqe;
542 /* sanity check on queue memory */
545 cqe = lpfc_sli4_qe(q, q->host_index);
547 /* If the next CQE is not valid then we are done */
548 if (bf_get_le32(lpfc_cqe_valid, cqe) != q->qe_valid)
552 * insert barrier for instruction interlock : data from the hardware
553 * must have the valid bit checked before it can be copied and acted
554 * upon. Given what was seen in lpfc_sli4_cq_get() of speculative
555 * instructions allowing action on content before valid bit checked,
556 * add barrier here as well. May not be needed as "content" is a
557 * single 32-bit entity here (vs multi word structure for cq's).
564 __lpfc_sli4_consume_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
565 struct lpfc_cqe *cqe)
567 if (!phba->sli4_hba.pc_sli4_params.cqav)
568 bf_set_le32(lpfc_cqe_valid, cqe, 0);
570 cq->host_index = ((cq->host_index + 1) % cq->entry_count);
572 /* if the index wrapped around, toggle the valid bit */
573 if (phba->sli4_hba.pc_sli4_params.cqav && !cq->host_index)
574 cq->qe_valid = (cq->qe_valid) ? 0 : 1;
578 * lpfc_sli4_write_cq_db - write cq DB for entries consumed or arm state.
579 * @phba: the adapter with the CQ
580 * @q: The Completion Queue that the host has completed processing for.
581 * @count: the number of elements that were consumed
582 * @arm: Indicates whether the host wants to arms this CQ.
584 * This routine will notify the HBA, by ringing the doorbell, that the
585 * CQEs have been processed. The @arm parameter specifies whether the
586 * queue should be rearmed when ringing the doorbell.
589 lpfc_sli4_write_cq_db(struct lpfc_hba *phba, struct lpfc_queue *q,
590 uint32_t count, bool arm)
592 struct lpfc_register doorbell;
594 /* sanity check on queue memory */
595 if (unlikely(!q || (count == 0 && !arm)))
598 /* ring doorbell for number popped */
601 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
602 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, count);
603 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION);
604 bf_set(lpfc_eqcq_doorbell_cqid_hi, &doorbell,
605 (q->queue_id >> LPFC_CQID_HI_FIELD_SHIFT));
606 bf_set(lpfc_eqcq_doorbell_cqid_lo, &doorbell, q->queue_id);
607 writel(doorbell.word0, q->phba->sli4_hba.CQDBregaddr);
611 * lpfc_sli4_if6_write_cq_db - write cq DB for entries consumed or arm state.
612 * @phba: the adapter with the CQ
613 * @q: The Completion Queue that the host has completed processing for.
614 * @count: the number of elements that were consumed
615 * @arm: Indicates whether the host wants to arms this CQ.
617 * This routine will notify the HBA, by ringing the doorbell, that the
618 * CQEs have been processed. The @arm parameter specifies whether the
619 * queue should be rearmed when ringing the doorbell.
622 lpfc_sli4_if6_write_cq_db(struct lpfc_hba *phba, struct lpfc_queue *q,
623 uint32_t count, bool arm)
625 struct lpfc_register doorbell;
627 /* sanity check on queue memory */
628 if (unlikely(!q || (count == 0 && !arm)))
631 /* ring doorbell for number popped */
634 bf_set(lpfc_if6_cq_doorbell_arm, &doorbell, 1);
635 bf_set(lpfc_if6_cq_doorbell_num_released, &doorbell, count);
636 bf_set(lpfc_if6_cq_doorbell_cqid, &doorbell, q->queue_id);
637 writel(doorbell.word0, q->phba->sli4_hba.CQDBregaddr);
641 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
642 * @q: The Header Receive Queue to operate on.
643 * @wqe: The Receive Queue Entry to put on the Receive queue.
645 * This routine will copy the contents of @wqe to the next available entry on
646 * the @q. This function will then ring the Receive Queue Doorbell to signal the
647 * HBA to start processing the Receive Queue Entry. This function returns the
648 * index that the rqe was copied to if successful. If no entries are available
649 * on @q then this function will return -ENOMEM.
650 * The caller is expected to hold the hbalock when calling this routine.
653 lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
654 struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe)
656 struct lpfc_rqe *temp_hrqe;
657 struct lpfc_rqe *temp_drqe;
658 struct lpfc_register doorbell;
662 /* sanity check on queue memory */
663 if (unlikely(!hq) || unlikely(!dq))
665 hq_put_index = hq->host_index;
666 dq_put_index = dq->host_index;
667 temp_hrqe = lpfc_sli4_qe(hq, hq_put_index);
668 temp_drqe = lpfc_sli4_qe(dq, dq_put_index);
670 if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ)
672 if (hq_put_index != dq_put_index)
674 /* If the host has not yet processed the next entry then we are done */
675 if (((hq_put_index + 1) % hq->entry_count) == hq->hba_index)
677 lpfc_sli4_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size);
678 lpfc_sli4_pcimem_bcopy(drqe, temp_drqe, dq->entry_size);
680 /* Update the host index to point to the next slot */
681 hq->host_index = ((hq_put_index + 1) % hq->entry_count);
682 dq->host_index = ((dq_put_index + 1) % dq->entry_count);
685 /* Ring The Header Receive Queue Doorbell */
686 if (!(hq->host_index % hq->notify_interval)) {
688 if (hq->db_format == LPFC_DB_RING_FORMAT) {
689 bf_set(lpfc_rq_db_ring_fm_num_posted, &doorbell,
690 hq->notify_interval);
691 bf_set(lpfc_rq_db_ring_fm_id, &doorbell, hq->queue_id);
692 } else if (hq->db_format == LPFC_DB_LIST_FORMAT) {
693 bf_set(lpfc_rq_db_list_fm_num_posted, &doorbell,
694 hq->notify_interval);
695 bf_set(lpfc_rq_db_list_fm_index, &doorbell,
697 bf_set(lpfc_rq_db_list_fm_id, &doorbell, hq->queue_id);
701 writel(doorbell.word0, hq->db_regaddr);
707 * lpfc_sli4_rq_release - Updates internal hba index for RQ
708 * @q: The Header Receive Queue to operate on.
710 * This routine will update the HBA index of a queue to reflect consumption of
711 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
712 * consumed an entry the host calls this function to update the queue's
713 * internal pointers. This routine returns the number of entries that were
714 * consumed by the HBA.
717 lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq)
719 /* sanity check on queue memory */
720 if (unlikely(!hq) || unlikely(!dq))
723 if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ))
725 hq->hba_index = ((hq->hba_index + 1) % hq->entry_count);
726 dq->hba_index = ((dq->hba_index + 1) % dq->entry_count);
731 * lpfc_cmd_iocb - Get next command iocb entry in the ring
732 * @phba: Pointer to HBA context object.
733 * @pring: Pointer to driver SLI ring object.
735 * This function returns pointer to next command iocb entry
736 * in the command ring. The caller must hold hbalock to prevent
737 * other threads consume the next command iocb.
738 * SLI-2/SLI-3 provide different sized iocbs.
740 static inline IOCB_t *
741 lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
743 return (IOCB_t *) (((char *) pring->sli.sli3.cmdringaddr) +
744 pring->sli.sli3.cmdidx * phba->iocb_cmd_size);
748 * lpfc_resp_iocb - Get next response iocb entry in the ring
749 * @phba: Pointer to HBA context object.
750 * @pring: Pointer to driver SLI ring object.
752 * This function returns pointer to next response iocb entry
753 * in the response ring. The caller must hold hbalock to make sure
754 * that no other thread consume the next response iocb.
755 * SLI-2/SLI-3 provide different sized iocbs.
757 static inline IOCB_t *
758 lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
760 return (IOCB_t *) (((char *) pring->sli.sli3.rspringaddr) +
761 pring->sli.sli3.rspidx * phba->iocb_rsp_size);
765 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
766 * @phba: Pointer to HBA context object.
768 * This function is called with hbalock held. This function
769 * allocates a new driver iocb object from the iocb pool. If the
770 * allocation is successful, it returns pointer to the newly
771 * allocated iocb object else it returns NULL.
774 __lpfc_sli_get_iocbq(struct lpfc_hba *phba)
776 struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
777 struct lpfc_iocbq * iocbq = NULL;
779 lockdep_assert_held(&phba->hbalock);
781 list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
784 if (phba->iocb_cnt > phba->iocb_max)
785 phba->iocb_max = phba->iocb_cnt;
790 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
791 * @phba: Pointer to HBA context object.
792 * @xritag: XRI value.
794 * This function clears the sglq pointer from the array of acive
795 * sglq's. The xritag that is passed in is used to index into the
796 * array. Before the xritag can be used it needs to be adjusted
797 * by subtracting the xribase.
799 * Returns sglq ponter = success, NULL = Failure.
802 __lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
804 struct lpfc_sglq *sglq;
806 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
807 phba->sli4_hba.lpfc_sglq_active_list[xritag] = NULL;
812 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
813 * @phba: Pointer to HBA context object.
814 * @xritag: XRI value.
816 * This function returns the sglq pointer from the array of acive
817 * sglq's. The xritag that is passed in is used to index into the
818 * array. Before the xritag can be used it needs to be adjusted
819 * by subtracting the xribase.
821 * Returns sglq ponter = success, NULL = Failure.
824 __lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
826 struct lpfc_sglq *sglq;
828 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
833 * lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
834 * @phba: Pointer to HBA context object.
835 * @xritag: xri used in this exchange.
836 * @rrq: The RRQ to be cleared.
840 lpfc_clr_rrq_active(struct lpfc_hba *phba,
842 struct lpfc_node_rrq *rrq)
844 struct lpfc_nodelist *ndlp = NULL;
846 if ((rrq->vport) && NLP_CHK_NODE_ACT(rrq->ndlp))
847 ndlp = lpfc_findnode_did(rrq->vport, rrq->nlp_DID);
849 /* The target DID could have been swapped (cable swap)
850 * we should use the ndlp from the findnode if it is
853 if ((!ndlp) && rrq->ndlp)
859 if (test_and_clear_bit(xritag, ndlp->active_rrqs_xri_bitmap)) {
862 rrq->rrq_stop_time = 0;
865 mempool_free(rrq, phba->rrq_pool);
869 * lpfc_handle_rrq_active - Checks if RRQ has waithed RATOV.
870 * @phba: Pointer to HBA context object.
872 * This function is called with hbalock held. This function
873 * Checks if stop_time (ratov from setting rrq active) has
874 * been reached, if it has and the send_rrq flag is set then
875 * it will call lpfc_send_rrq. If the send_rrq flag is not set
876 * then it will just call the routine to clear the rrq and
877 * free the rrq resource.
878 * The timer is set to the next rrq that is going to expire before
879 * leaving the routine.
883 lpfc_handle_rrq_active(struct lpfc_hba *phba)
885 struct lpfc_node_rrq *rrq;
886 struct lpfc_node_rrq *nextrrq;
887 unsigned long next_time;
888 unsigned long iflags;
891 spin_lock_irqsave(&phba->hbalock, iflags);
892 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
893 next_time = jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
894 list_for_each_entry_safe(rrq, nextrrq,
895 &phba->active_rrq_list, list) {
896 if (time_after(jiffies, rrq->rrq_stop_time))
897 list_move(&rrq->list, &send_rrq);
898 else if (time_before(rrq->rrq_stop_time, next_time))
899 next_time = rrq->rrq_stop_time;
901 spin_unlock_irqrestore(&phba->hbalock, iflags);
902 if ((!list_empty(&phba->active_rrq_list)) &&
903 (!(phba->pport->load_flag & FC_UNLOADING)))
904 mod_timer(&phba->rrq_tmr, next_time);
905 list_for_each_entry_safe(rrq, nextrrq, &send_rrq, list) {
906 list_del(&rrq->list);
907 if (!rrq->send_rrq) {
908 /* this call will free the rrq */
909 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
910 } else if (lpfc_send_rrq(phba, rrq)) {
911 /* if we send the rrq then the completion handler
912 * will clear the bit in the xribitmap.
914 lpfc_clr_rrq_active(phba, rrq->xritag,
921 * lpfc_get_active_rrq - Get the active RRQ for this exchange.
922 * @vport: Pointer to vport context object.
923 * @xri: The xri used in the exchange.
924 * @did: The targets DID for this exchange.
926 * returns NULL = rrq not found in the phba->active_rrq_list.
927 * rrq = rrq for this xri and target.
929 struct lpfc_node_rrq *
930 lpfc_get_active_rrq(struct lpfc_vport *vport, uint16_t xri, uint32_t did)
932 struct lpfc_hba *phba = vport->phba;
933 struct lpfc_node_rrq *rrq;
934 struct lpfc_node_rrq *nextrrq;
935 unsigned long iflags;
937 if (phba->sli_rev != LPFC_SLI_REV4)
939 spin_lock_irqsave(&phba->hbalock, iflags);
940 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) {
941 if (rrq->vport == vport && rrq->xritag == xri &&
942 rrq->nlp_DID == did){
943 list_del(&rrq->list);
944 spin_unlock_irqrestore(&phba->hbalock, iflags);
948 spin_unlock_irqrestore(&phba->hbalock, iflags);
953 * lpfc_cleanup_vports_rrqs - Remove and clear the active RRQ for this vport.
954 * @vport: Pointer to vport context object.
955 * @ndlp: Pointer to the lpfc_node_list structure.
956 * If ndlp is NULL Remove all active RRQs for this vport from the
957 * phba->active_rrq_list and clear the rrq.
958 * If ndlp is not NULL then only remove rrqs for this vport & this ndlp.
961 lpfc_cleanup_vports_rrqs(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
964 struct lpfc_hba *phba = vport->phba;
965 struct lpfc_node_rrq *rrq;
966 struct lpfc_node_rrq *nextrrq;
967 unsigned long iflags;
970 if (phba->sli_rev != LPFC_SLI_REV4)
973 lpfc_sli4_vport_delete_els_xri_aborted(vport);
974 lpfc_sli4_vport_delete_fcp_xri_aborted(vport);
976 spin_lock_irqsave(&phba->hbalock, iflags);
977 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list)
978 if ((rrq->vport == vport) && (!ndlp || rrq->ndlp == ndlp))
979 list_move(&rrq->list, &rrq_list);
980 spin_unlock_irqrestore(&phba->hbalock, iflags);
982 list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
983 list_del(&rrq->list);
984 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
989 * lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
990 * @phba: Pointer to HBA context object.
991 * @ndlp: Targets nodelist pointer for this exchange.
992 * @xritag the xri in the bitmap to test.
994 * This function returns:
995 * 0 = rrq not active for this xri
996 * 1 = rrq is valid for this xri.
999 lpfc_test_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
1004 if (!ndlp->active_rrqs_xri_bitmap)
1006 if (test_bit(xritag, ndlp->active_rrqs_xri_bitmap))
1013 * lpfc_set_rrq_active - set RRQ active bit in xri_bitmap.
1014 * @phba: Pointer to HBA context object.
1015 * @ndlp: nodelist pointer for this target.
1016 * @xritag: xri used in this exchange.
1017 * @rxid: Remote Exchange ID.
1018 * @send_rrq: Flag used to determine if we should send rrq els cmd.
1020 * This function takes the hbalock.
1021 * The active bit is always set in the active rrq xri_bitmap even
1022 * if there is no slot avaiable for the other rrq information.
1024 * returns 0 rrq actived for this xri
1025 * < 0 No memory or invalid ndlp.
1028 lpfc_set_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
1029 uint16_t xritag, uint16_t rxid, uint16_t send_rrq)
1031 unsigned long iflags;
1032 struct lpfc_node_rrq *rrq;
1038 if (!phba->cfg_enable_rrq)
1041 spin_lock_irqsave(&phba->hbalock, iflags);
1042 if (phba->pport->load_flag & FC_UNLOADING) {
1043 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1048 * set the active bit even if there is no mem available.
1050 if (NLP_CHK_FREE_REQ(ndlp))
1053 if (ndlp->vport && (ndlp->vport->load_flag & FC_UNLOADING))
1056 if (!ndlp->active_rrqs_xri_bitmap)
1059 if (test_and_set_bit(xritag, ndlp->active_rrqs_xri_bitmap))
1062 spin_unlock_irqrestore(&phba->hbalock, iflags);
1063 rrq = mempool_alloc(phba->rrq_pool, GFP_KERNEL);
1065 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
1066 "3155 Unable to allocate RRQ xri:0x%x rxid:0x%x"
1067 " DID:0x%x Send:%d\n",
1068 xritag, rxid, ndlp->nlp_DID, send_rrq);
1071 if (phba->cfg_enable_rrq == 1)
1072 rrq->send_rrq = send_rrq;
1075 rrq->xritag = xritag;
1076 rrq->rrq_stop_time = jiffies +
1077 msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
1079 rrq->nlp_DID = ndlp->nlp_DID;
1080 rrq->vport = ndlp->vport;
1082 spin_lock_irqsave(&phba->hbalock, iflags);
1083 empty = list_empty(&phba->active_rrq_list);
1084 list_add_tail(&rrq->list, &phba->active_rrq_list);
1085 phba->hba_flag |= HBA_RRQ_ACTIVE;
1087 lpfc_worker_wake_up(phba);
1088 spin_unlock_irqrestore(&phba->hbalock, iflags);
1091 spin_unlock_irqrestore(&phba->hbalock, iflags);
1092 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
1093 "2921 Can't set rrq active xri:0x%x rxid:0x%x"
1094 " DID:0x%x Send:%d\n",
1095 xritag, rxid, ndlp->nlp_DID, send_rrq);
1100 * __lpfc_sli_get_els_sglq - Allocates an iocb object from sgl pool
1101 * @phba: Pointer to HBA context object.
1102 * @piocb: Pointer to the iocbq.
1104 * The driver calls this function with either the nvme ls ring lock
1105 * or the fc els ring lock held depending on the iocb usage. This function
1106 * gets a new driver sglq object from the sglq list. If the list is not empty
1107 * then it is successful, it returns pointer to the newly allocated sglq
1108 * object else it returns NULL.
1110 static struct lpfc_sglq *
1111 __lpfc_sli_get_els_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
1113 struct list_head *lpfc_els_sgl_list = &phba->sli4_hba.lpfc_els_sgl_list;
1114 struct lpfc_sglq *sglq = NULL;
1115 struct lpfc_sglq *start_sglq = NULL;
1116 struct lpfc_io_buf *lpfc_cmd;
1117 struct lpfc_nodelist *ndlp;
1118 struct lpfc_sli_ring *pring = NULL;
1121 if (piocbq->iocb_flag & LPFC_IO_NVME_LS)
1122 pring = phba->sli4_hba.nvmels_wq->pring;
1124 pring = lpfc_phba_elsring(phba);
1126 lockdep_assert_held(&pring->ring_lock);
1128 if (piocbq->iocb_flag & LPFC_IO_FCP) {
1129 lpfc_cmd = (struct lpfc_io_buf *) piocbq->context1;
1130 ndlp = lpfc_cmd->rdata->pnode;
1131 } else if ((piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) &&
1132 !(piocbq->iocb_flag & LPFC_IO_LIBDFC)) {
1133 ndlp = piocbq->context_un.ndlp;
1134 } else if (piocbq->iocb_flag & LPFC_IO_LIBDFC) {
1135 if (piocbq->iocb_flag & LPFC_IO_LOOPBACK)
1138 ndlp = piocbq->context_un.ndlp;
1140 ndlp = piocbq->context1;
1143 spin_lock(&phba->sli4_hba.sgl_list_lock);
1144 list_remove_head(lpfc_els_sgl_list, sglq, struct lpfc_sglq, list);
1149 if (ndlp && ndlp->active_rrqs_xri_bitmap &&
1150 test_bit(sglq->sli4_lxritag,
1151 ndlp->active_rrqs_xri_bitmap)) {
1152 /* This xri has an rrq outstanding for this DID.
1153 * put it back in the list and get another xri.
1155 list_add_tail(&sglq->list, lpfc_els_sgl_list);
1157 list_remove_head(lpfc_els_sgl_list, sglq,
1158 struct lpfc_sglq, list);
1159 if (sglq == start_sglq) {
1160 list_add_tail(&sglq->list, lpfc_els_sgl_list);
1168 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
1169 sglq->state = SGL_ALLOCATED;
1171 spin_unlock(&phba->sli4_hba.sgl_list_lock);
1176 * __lpfc_sli_get_nvmet_sglq - Allocates an iocb object from sgl pool
1177 * @phba: Pointer to HBA context object.
1178 * @piocb: Pointer to the iocbq.
1180 * This function is called with the sgl_list lock held. This function
1181 * gets a new driver sglq object from the sglq list. If the
1182 * list is not empty then it is successful, it returns pointer to the newly
1183 * allocated sglq object else it returns NULL.
1186 __lpfc_sli_get_nvmet_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
1188 struct list_head *lpfc_nvmet_sgl_list;
1189 struct lpfc_sglq *sglq = NULL;
1191 lpfc_nvmet_sgl_list = &phba->sli4_hba.lpfc_nvmet_sgl_list;
1193 lockdep_assert_held(&phba->sli4_hba.sgl_list_lock);
1195 list_remove_head(lpfc_nvmet_sgl_list, sglq, struct lpfc_sglq, list);
1198 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
1199 sglq->state = SGL_ALLOCATED;
1204 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
1205 * @phba: Pointer to HBA context object.
1207 * This function is called with no lock held. This function
1208 * allocates a new driver iocb object from the iocb pool. If the
1209 * allocation is successful, it returns pointer to the newly
1210 * allocated iocb object else it returns NULL.
1213 lpfc_sli_get_iocbq(struct lpfc_hba *phba)
1215 struct lpfc_iocbq * iocbq = NULL;
1216 unsigned long iflags;
1218 spin_lock_irqsave(&phba->hbalock, iflags);
1219 iocbq = __lpfc_sli_get_iocbq(phba);
1220 spin_unlock_irqrestore(&phba->hbalock, iflags);
1225 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
1226 * @phba: Pointer to HBA context object.
1227 * @iocbq: Pointer to driver iocb object.
1229 * This function is called with hbalock held to release driver
1230 * iocb object to the iocb pool. The iotag in the iocb object
1231 * does not change for each use of the iocb object. This function
1232 * clears all other fields of the iocb object when it is freed.
1233 * The sqlq structure that holds the xritag and phys and virtual
1234 * mappings for the scatter gather list is retrieved from the
1235 * active array of sglq. The get of the sglq pointer also clears
1236 * the entry in the array. If the status of the IO indiactes that
1237 * this IO was aborted then the sglq entry it put on the
1238 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
1239 * IO has good status or fails for any other reason then the sglq
1240 * entry is added to the free list (lpfc_els_sgl_list).
1243 __lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1245 struct lpfc_sglq *sglq;
1246 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1247 unsigned long iflag = 0;
1248 struct lpfc_sli_ring *pring;
1250 lockdep_assert_held(&phba->hbalock);
1252 if (iocbq->sli4_xritag == NO_XRI)
1255 sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_lxritag);
1259 if (iocbq->iocb_flag & LPFC_IO_NVMET) {
1260 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock,
1262 sglq->state = SGL_FREED;
1264 list_add_tail(&sglq->list,
1265 &phba->sli4_hba.lpfc_nvmet_sgl_list);
1266 spin_unlock_irqrestore(
1267 &phba->sli4_hba.sgl_list_lock, iflag);
1271 pring = phba->sli4_hba.els_wq->pring;
1272 if ((iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) &&
1273 (sglq->state != SGL_XRI_ABORTED)) {
1274 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock,
1276 list_add(&sglq->list,
1277 &phba->sli4_hba.lpfc_abts_els_sgl_list);
1278 spin_unlock_irqrestore(
1279 &phba->sli4_hba.sgl_list_lock, iflag);
1281 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock,
1283 sglq->state = SGL_FREED;
1285 list_add_tail(&sglq->list,
1286 &phba->sli4_hba.lpfc_els_sgl_list);
1287 spin_unlock_irqrestore(
1288 &phba->sli4_hba.sgl_list_lock, iflag);
1290 /* Check if TXQ queue needs to be serviced */
1291 if (!list_empty(&pring->txq))
1292 lpfc_worker_wake_up(phba);
1298 * Clean all volatile data fields, preserve iotag and node struct.
1300 memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1301 iocbq->sli4_lxritag = NO_XRI;
1302 iocbq->sli4_xritag = NO_XRI;
1303 iocbq->iocb_flag &= ~(LPFC_IO_NVME | LPFC_IO_NVMET |
1305 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1310 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
1311 * @phba: Pointer to HBA context object.
1312 * @iocbq: Pointer to driver iocb object.
1314 * This function is called with hbalock held to release driver
1315 * iocb object to the iocb pool. The iotag in the iocb object
1316 * does not change for each use of the iocb object. This function
1317 * clears all other fields of the iocb object when it is freed.
1320 __lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1322 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1324 lockdep_assert_held(&phba->hbalock);
1327 * Clean all volatile data fields, preserve iotag and node struct.
1329 memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1330 iocbq->sli4_xritag = NO_XRI;
1331 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1335 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
1336 * @phba: Pointer to HBA context object.
1337 * @iocbq: Pointer to driver iocb object.
1339 * This function is called with hbalock held to release driver
1340 * iocb object to the iocb pool. The iotag in the iocb object
1341 * does not change for each use of the iocb object. This function
1342 * clears all other fields of the iocb object when it is freed.
1345 __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1347 lockdep_assert_held(&phba->hbalock);
1349 phba->__lpfc_sli_release_iocbq(phba, iocbq);
1354 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
1355 * @phba: Pointer to HBA context object.
1356 * @iocbq: Pointer to driver iocb object.
1358 * This function is called with no lock held to release the iocb to
1362 lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1364 unsigned long iflags;
1367 * Clean all volatile data fields, preserve iotag and node struct.
1369 spin_lock_irqsave(&phba->hbalock, iflags);
1370 __lpfc_sli_release_iocbq(phba, iocbq);
1371 spin_unlock_irqrestore(&phba->hbalock, iflags);
1375 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
1376 * @phba: Pointer to HBA context object.
1377 * @iocblist: List of IOCBs.
1378 * @ulpstatus: ULP status in IOCB command field.
1379 * @ulpWord4: ULP word-4 in IOCB command field.
1381 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
1382 * on the list by invoking the complete callback function associated with the
1383 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
1387 lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
1388 uint32_t ulpstatus, uint32_t ulpWord4)
1390 struct lpfc_iocbq *piocb;
1392 while (!list_empty(iocblist)) {
1393 list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
1394 if (!piocb->iocb_cmpl) {
1395 if (piocb->iocb_flag & LPFC_IO_NVME)
1396 lpfc_nvme_cancel_iocb(phba, piocb);
1398 lpfc_sli_release_iocbq(phba, piocb);
1400 piocb->iocb.ulpStatus = ulpstatus;
1401 piocb->iocb.un.ulpWord[4] = ulpWord4;
1402 (piocb->iocb_cmpl) (phba, piocb, piocb);
1409 * lpfc_sli_iocb_cmd_type - Get the iocb type
1410 * @iocb_cmnd: iocb command code.
1412 * This function is called by ring event handler function to get the iocb type.
1413 * This function translates the iocb command to an iocb command type used to
1414 * decide the final disposition of each completed IOCB.
1415 * The function returns
1416 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
1417 * LPFC_SOL_IOCB if it is a solicited iocb completion
1418 * LPFC_ABORT_IOCB if it is an abort iocb
1419 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
1421 * The caller is not required to hold any lock.
1423 static lpfc_iocb_type
1424 lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
1426 lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
1428 if (iocb_cmnd > CMD_MAX_IOCB_CMD)
1431 switch (iocb_cmnd) {
1432 case CMD_XMIT_SEQUENCE_CR:
1433 case CMD_XMIT_SEQUENCE_CX:
1434 case CMD_XMIT_BCAST_CN:
1435 case CMD_XMIT_BCAST_CX:
1436 case CMD_ELS_REQUEST_CR:
1437 case CMD_ELS_REQUEST_CX:
1438 case CMD_CREATE_XRI_CR:
1439 case CMD_CREATE_XRI_CX:
1440 case CMD_GET_RPI_CN:
1441 case CMD_XMIT_ELS_RSP_CX:
1442 case CMD_GET_RPI_CR:
1443 case CMD_FCP_IWRITE_CR:
1444 case CMD_FCP_IWRITE_CX:
1445 case CMD_FCP_IREAD_CR:
1446 case CMD_FCP_IREAD_CX:
1447 case CMD_FCP_ICMND_CR:
1448 case CMD_FCP_ICMND_CX:
1449 case CMD_FCP_TSEND_CX:
1450 case CMD_FCP_TRSP_CX:
1451 case CMD_FCP_TRECEIVE_CX:
1452 case CMD_FCP_AUTO_TRSP_CX:
1453 case CMD_ADAPTER_MSG:
1454 case CMD_ADAPTER_DUMP:
1455 case CMD_XMIT_SEQUENCE64_CR:
1456 case CMD_XMIT_SEQUENCE64_CX:
1457 case CMD_XMIT_BCAST64_CN:
1458 case CMD_XMIT_BCAST64_CX:
1459 case CMD_ELS_REQUEST64_CR:
1460 case CMD_ELS_REQUEST64_CX:
1461 case CMD_FCP_IWRITE64_CR:
1462 case CMD_FCP_IWRITE64_CX:
1463 case CMD_FCP_IREAD64_CR:
1464 case CMD_FCP_IREAD64_CX:
1465 case CMD_FCP_ICMND64_CR:
1466 case CMD_FCP_ICMND64_CX:
1467 case CMD_FCP_TSEND64_CX:
1468 case CMD_FCP_TRSP64_CX:
1469 case CMD_FCP_TRECEIVE64_CX:
1470 case CMD_GEN_REQUEST64_CR:
1471 case CMD_GEN_REQUEST64_CX:
1472 case CMD_XMIT_ELS_RSP64_CX:
1473 case DSSCMD_IWRITE64_CR:
1474 case DSSCMD_IWRITE64_CX:
1475 case DSSCMD_IREAD64_CR:
1476 case DSSCMD_IREAD64_CX:
1477 type = LPFC_SOL_IOCB;
1479 case CMD_ABORT_XRI_CN:
1480 case CMD_ABORT_XRI_CX:
1481 case CMD_CLOSE_XRI_CN:
1482 case CMD_CLOSE_XRI_CX:
1483 case CMD_XRI_ABORTED_CX:
1484 case CMD_ABORT_MXRI64_CN:
1485 case CMD_XMIT_BLS_RSP64_CX:
1486 type = LPFC_ABORT_IOCB;
1488 case CMD_RCV_SEQUENCE_CX:
1489 case CMD_RCV_ELS_REQ_CX:
1490 case CMD_RCV_SEQUENCE64_CX:
1491 case CMD_RCV_ELS_REQ64_CX:
1492 case CMD_ASYNC_STATUS:
1493 case CMD_IOCB_RCV_SEQ64_CX:
1494 case CMD_IOCB_RCV_ELS64_CX:
1495 case CMD_IOCB_RCV_CONT64_CX:
1496 case CMD_IOCB_RET_XRI64_CX:
1497 type = LPFC_UNSOL_IOCB;
1499 case CMD_IOCB_XMIT_MSEQ64_CR:
1500 case CMD_IOCB_XMIT_MSEQ64_CX:
1501 case CMD_IOCB_RCV_SEQ_LIST64_CX:
1502 case CMD_IOCB_RCV_ELS_LIST64_CX:
1503 case CMD_IOCB_CLOSE_EXTENDED_CN:
1504 case CMD_IOCB_ABORT_EXTENDED_CN:
1505 case CMD_IOCB_RET_HBQE64_CN:
1506 case CMD_IOCB_FCP_IBIDIR64_CR:
1507 case CMD_IOCB_FCP_IBIDIR64_CX:
1508 case CMD_IOCB_FCP_ITASKMGT64_CX:
1509 case CMD_IOCB_LOGENTRY_CN:
1510 case CMD_IOCB_LOGENTRY_ASYNC_CN:
1511 printk("%s - Unhandled SLI-3 Command x%x\n",
1512 __func__, iocb_cmnd);
1513 type = LPFC_UNKNOWN_IOCB;
1516 type = LPFC_UNKNOWN_IOCB;
1524 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
1525 * @phba: Pointer to HBA context object.
1527 * This function is called from SLI initialization code
1528 * to configure every ring of the HBA's SLI interface. The
1529 * caller is not required to hold any lock. This function issues
1530 * a config_ring mailbox command for each ring.
1531 * This function returns zero if successful else returns a negative
1535 lpfc_sli_ring_map(struct lpfc_hba *phba)
1537 struct lpfc_sli *psli = &phba->sli;
1542 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1546 phba->link_state = LPFC_INIT_MBX_CMDS;
1547 for (i = 0; i < psli->num_rings; i++) {
1548 lpfc_config_ring(phba, i, pmb);
1549 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
1550 if (rc != MBX_SUCCESS) {
1551 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1552 "0446 Adapter failed to init (%d), "
1553 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
1555 rc, pmbox->mbxCommand,
1556 pmbox->mbxStatus, i);
1557 phba->link_state = LPFC_HBA_ERROR;
1562 mempool_free(pmb, phba->mbox_mem_pool);
1567 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
1568 * @phba: Pointer to HBA context object.
1569 * @pring: Pointer to driver SLI ring object.
1570 * @piocb: Pointer to the driver iocb object.
1572 * The driver calls this function with the hbalock held for SLI3 ports or
1573 * the ring lock held for SLI4 ports. The function adds the
1574 * new iocb to txcmplq of the given ring. This function always returns
1575 * 0. If this function is called for ELS ring, this function checks if
1576 * there is a vport associated with the ELS command. This function also
1577 * starts els_tmofunc timer if this is an ELS command.
1580 lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1581 struct lpfc_iocbq *piocb)
1583 if (phba->sli_rev == LPFC_SLI_REV4)
1584 lockdep_assert_held(&pring->ring_lock);
1586 lockdep_assert_held(&phba->hbalock);
1590 list_add_tail(&piocb->list, &pring->txcmplq);
1591 piocb->iocb_flag |= LPFC_IO_ON_TXCMPLQ;
1592 pring->txcmplq_cnt++;
1594 if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
1595 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
1596 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
1597 BUG_ON(!piocb->vport);
1598 if (!(piocb->vport->load_flag & FC_UNLOADING))
1599 mod_timer(&piocb->vport->els_tmofunc,
1601 msecs_to_jiffies(1000 * (phba->fc_ratov << 1)));
1608 * lpfc_sli_ringtx_get - Get first element of the txq
1609 * @phba: Pointer to HBA context object.
1610 * @pring: Pointer to driver SLI ring object.
1612 * This function is called with hbalock held to get next
1613 * iocb in txq of the given ring. If there is any iocb in
1614 * the txq, the function returns first iocb in the list after
1615 * removing the iocb from the list, else it returns NULL.
1618 lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1620 struct lpfc_iocbq *cmd_iocb;
1622 lockdep_assert_held(&phba->hbalock);
1624 list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
1629 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
1630 * @phba: Pointer to HBA context object.
1631 * @pring: Pointer to driver SLI ring object.
1633 * This function is called with hbalock held and the caller must post the
1634 * iocb without releasing the lock. If the caller releases the lock,
1635 * iocb slot returned by the function is not guaranteed to be available.
1636 * The function returns pointer to the next available iocb slot if there
1637 * is available slot in the ring, else it returns NULL.
1638 * If the get index of the ring is ahead of the put index, the function
1639 * will post an error attention event to the worker thread to take the
1640 * HBA to offline state.
1643 lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1645 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
1646 uint32_t max_cmd_idx = pring->sli.sli3.numCiocb;
1648 lockdep_assert_held(&phba->hbalock);
1650 if ((pring->sli.sli3.next_cmdidx == pring->sli.sli3.cmdidx) &&
1651 (++pring->sli.sli3.next_cmdidx >= max_cmd_idx))
1652 pring->sli.sli3.next_cmdidx = 0;
1654 if (unlikely(pring->sli.sli3.local_getidx ==
1655 pring->sli.sli3.next_cmdidx)) {
1657 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
1659 if (unlikely(pring->sli.sli3.local_getidx >= max_cmd_idx)) {
1660 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1661 "0315 Ring %d issue: portCmdGet %d "
1662 "is bigger than cmd ring %d\n",
1664 pring->sli.sli3.local_getidx,
1667 phba->link_state = LPFC_HBA_ERROR;
1669 * All error attention handlers are posted to
1672 phba->work_ha |= HA_ERATT;
1673 phba->work_hs = HS_FFER3;
1675 lpfc_worker_wake_up(phba);
1680 if (pring->sli.sli3.local_getidx == pring->sli.sli3.next_cmdidx)
1684 return lpfc_cmd_iocb(phba, pring);
1688 * lpfc_sli_next_iotag - Get an iotag for the iocb
1689 * @phba: Pointer to HBA context object.
1690 * @iocbq: Pointer to driver iocb object.
1692 * This function gets an iotag for the iocb. If there is no unused iotag and
1693 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
1694 * array and assigns a new iotag.
1695 * The function returns the allocated iotag if successful, else returns zero.
1696 * Zero is not a valid iotag.
1697 * The caller is not required to hold any lock.
1700 lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1702 struct lpfc_iocbq **new_arr;
1703 struct lpfc_iocbq **old_arr;
1705 struct lpfc_sli *psli = &phba->sli;
1708 spin_lock_irq(&phba->hbalock);
1709 iotag = psli->last_iotag;
1710 if(++iotag < psli->iocbq_lookup_len) {
1711 psli->last_iotag = iotag;
1712 psli->iocbq_lookup[iotag] = iocbq;
1713 spin_unlock_irq(&phba->hbalock);
1714 iocbq->iotag = iotag;
1716 } else if (psli->iocbq_lookup_len < (0xffff
1717 - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
1718 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
1719 spin_unlock_irq(&phba->hbalock);
1720 new_arr = kcalloc(new_len, sizeof(struct lpfc_iocbq *),
1723 spin_lock_irq(&phba->hbalock);
1724 old_arr = psli->iocbq_lookup;
1725 if (new_len <= psli->iocbq_lookup_len) {
1726 /* highly unprobable case */
1728 iotag = psli->last_iotag;
1729 if(++iotag < psli->iocbq_lookup_len) {
1730 psli->last_iotag = iotag;
1731 psli->iocbq_lookup[iotag] = iocbq;
1732 spin_unlock_irq(&phba->hbalock);
1733 iocbq->iotag = iotag;
1736 spin_unlock_irq(&phba->hbalock);
1739 if (psli->iocbq_lookup)
1740 memcpy(new_arr, old_arr,
1741 ((psli->last_iotag + 1) *
1742 sizeof (struct lpfc_iocbq *)));
1743 psli->iocbq_lookup = new_arr;
1744 psli->iocbq_lookup_len = new_len;
1745 psli->last_iotag = iotag;
1746 psli->iocbq_lookup[iotag] = iocbq;
1747 spin_unlock_irq(&phba->hbalock);
1748 iocbq->iotag = iotag;
1753 spin_unlock_irq(&phba->hbalock);
1755 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
1756 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1763 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
1764 * @phba: Pointer to HBA context object.
1765 * @pring: Pointer to driver SLI ring object.
1766 * @iocb: Pointer to iocb slot in the ring.
1767 * @nextiocb: Pointer to driver iocb object which need to be
1768 * posted to firmware.
1770 * This function is called with hbalock held to post a new iocb to
1771 * the firmware. This function copies the new iocb to ring iocb slot and
1772 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1773 * a completion call back for this iocb else the function will free the
1777 lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1778 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
1780 lockdep_assert_held(&phba->hbalock);
1784 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
1787 if (pring->ringno == LPFC_ELS_RING) {
1788 lpfc_debugfs_slow_ring_trc(phba,
1789 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1790 *(((uint32_t *) &nextiocb->iocb) + 4),
1791 *(((uint32_t *) &nextiocb->iocb) + 6),
1792 *(((uint32_t *) &nextiocb->iocb) + 7));
1796 * Issue iocb command to adapter
1798 lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
1800 pring->stats.iocb_cmd++;
1803 * If there is no completion routine to call, we can release the
1804 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1805 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1807 if (nextiocb->iocb_cmpl)
1808 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
1810 __lpfc_sli_release_iocbq(phba, nextiocb);
1813 * Let the HBA know what IOCB slot will be the next one the
1814 * driver will put a command into.
1816 pring->sli.sli3.cmdidx = pring->sli.sli3.next_cmdidx;
1817 writel(pring->sli.sli3.cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
1821 * lpfc_sli_update_full_ring - Update the chip attention register
1822 * @phba: Pointer to HBA context object.
1823 * @pring: Pointer to driver SLI ring object.
1825 * The caller is not required to hold any lock for calling this function.
1826 * This function updates the chip attention bits for the ring to inform firmware
1827 * that there are pending work to be done for this ring and requests an
1828 * interrupt when there is space available in the ring. This function is
1829 * called when the driver is unable to post more iocbs to the ring due
1830 * to unavailability of space in the ring.
1833 lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1835 int ringno = pring->ringno;
1837 pring->flag |= LPFC_CALL_RING_AVAILABLE;
1842 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1843 * The HBA will tell us when an IOCB entry is available.
1845 writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
1846 readl(phba->CAregaddr); /* flush */
1848 pring->stats.iocb_cmd_full++;
1852 * lpfc_sli_update_ring - Update chip attention register
1853 * @phba: Pointer to HBA context object.
1854 * @pring: Pointer to driver SLI ring object.
1856 * This function updates the chip attention register bit for the
1857 * given ring to inform HBA that there is more work to be done
1858 * in this ring. The caller is not required to hold any lock.
1861 lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1863 int ringno = pring->ringno;
1866 * Tell the HBA that there is work to do in this ring.
1868 if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
1870 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
1871 readl(phba->CAregaddr); /* flush */
1876 * lpfc_sli_resume_iocb - Process iocbs in the txq
1877 * @phba: Pointer to HBA context object.
1878 * @pring: Pointer to driver SLI ring object.
1880 * This function is called with hbalock held to post pending iocbs
1881 * in the txq to the firmware. This function is called when driver
1882 * detects space available in the ring.
1885 lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1888 struct lpfc_iocbq *nextiocb;
1890 lockdep_assert_held(&phba->hbalock);
1894 * (a) there is anything on the txq to send
1896 * (c) link attention events can be processed (fcp ring only)
1897 * (d) IOCB processing is not blocked by the outstanding mbox command.
1900 if (lpfc_is_link_up(phba) &&
1901 (!list_empty(&pring->txq)) &&
1902 (pring->ringno != LPFC_FCP_RING ||
1903 phba->sli.sli_flag & LPFC_PROCESS_LA)) {
1905 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
1906 (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
1907 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
1910 lpfc_sli_update_ring(phba, pring);
1912 lpfc_sli_update_full_ring(phba, pring);
1919 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
1920 * @phba: Pointer to HBA context object.
1921 * @hbqno: HBQ number.
1923 * This function is called with hbalock held to get the next
1924 * available slot for the given HBQ. If there is free slot
1925 * available for the HBQ it will return pointer to the next available
1926 * HBQ entry else it will return NULL.
1928 static struct lpfc_hbq_entry *
1929 lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
1931 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1933 lockdep_assert_held(&phba->hbalock);
1935 if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
1936 ++hbqp->next_hbqPutIdx >= hbqp->entry_count)
1937 hbqp->next_hbqPutIdx = 0;
1939 if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
1940 uint32_t raw_index = phba->hbq_get[hbqno];
1941 uint32_t getidx = le32_to_cpu(raw_index);
1943 hbqp->local_hbqGetIdx = getidx;
1945 if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
1946 lpfc_printf_log(phba, KERN_ERR,
1947 LOG_SLI | LOG_VPORT,
1948 "1802 HBQ %d: local_hbqGetIdx "
1949 "%u is > than hbqp->entry_count %u\n",
1950 hbqno, hbqp->local_hbqGetIdx,
1953 phba->link_state = LPFC_HBA_ERROR;
1957 if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
1961 return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
1966 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
1967 * @phba: Pointer to HBA context object.
1969 * This function is called with no lock held to free all the
1970 * hbq buffers while uninitializing the SLI interface. It also
1971 * frees the HBQ buffers returned by the firmware but not yet
1972 * processed by the upper layers.
1975 lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
1977 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
1978 struct hbq_dmabuf *hbq_buf;
1979 unsigned long flags;
1982 hbq_count = lpfc_sli_hbq_count();
1983 /* Return all memory used by all HBQs */
1984 spin_lock_irqsave(&phba->hbalock, flags);
1985 for (i = 0; i < hbq_count; ++i) {
1986 list_for_each_entry_safe(dmabuf, next_dmabuf,
1987 &phba->hbqs[i].hbq_buffer_list, list) {
1988 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1989 list_del(&hbq_buf->dbuf.list);
1990 (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
1992 phba->hbqs[i].buffer_count = 0;
1995 /* Mark the HBQs not in use */
1996 phba->hbq_in_use = 0;
1997 spin_unlock_irqrestore(&phba->hbalock, flags);
2001 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
2002 * @phba: Pointer to HBA context object.
2003 * @hbqno: HBQ number.
2004 * @hbq_buf: Pointer to HBQ buffer.
2006 * This function is called with the hbalock held to post a
2007 * hbq buffer to the firmware. If the function finds an empty
2008 * slot in the HBQ, it will post the buffer. The function will return
2009 * pointer to the hbq entry if it successfully post the buffer
2010 * else it will return NULL.
2013 lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
2014 struct hbq_dmabuf *hbq_buf)
2016 lockdep_assert_held(&phba->hbalock);
2017 return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
2021 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
2022 * @phba: Pointer to HBA context object.
2023 * @hbqno: HBQ number.
2024 * @hbq_buf: Pointer to HBQ buffer.
2026 * This function is called with the hbalock held to post a hbq buffer to the
2027 * firmware. If the function finds an empty slot in the HBQ, it will post the
2028 * buffer and place it on the hbq_buffer_list. The function will return zero if
2029 * it successfully post the buffer else it will return an error.
2032 lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
2033 struct hbq_dmabuf *hbq_buf)
2035 struct lpfc_hbq_entry *hbqe;
2036 dma_addr_t physaddr = hbq_buf->dbuf.phys;
2038 lockdep_assert_held(&phba->hbalock);
2039 /* Get next HBQ entry slot to use */
2040 hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
2042 struct hbq_s *hbqp = &phba->hbqs[hbqno];
2044 hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
2045 hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
2046 hbqe->bde.tus.f.bdeSize = hbq_buf->total_size;
2047 hbqe->bde.tus.f.bdeFlags = 0;
2048 hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
2049 hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
2051 hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
2052 writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
2054 readl(phba->hbq_put + hbqno);
2055 list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
2062 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
2063 * @phba: Pointer to HBA context object.
2064 * @hbqno: HBQ number.
2065 * @hbq_buf: Pointer to HBQ buffer.
2067 * This function is called with the hbalock held to post an RQE to the SLI4
2068 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
2069 * the hbq_buffer_list and return zero, otherwise it will return an error.
2072 lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
2073 struct hbq_dmabuf *hbq_buf)
2076 struct lpfc_rqe hrqe;
2077 struct lpfc_rqe drqe;
2078 struct lpfc_queue *hrq;
2079 struct lpfc_queue *drq;
2081 if (hbqno != LPFC_ELS_HBQ)
2083 hrq = phba->sli4_hba.hdr_rq;
2084 drq = phba->sli4_hba.dat_rq;
2086 lockdep_assert_held(&phba->hbalock);
2087 hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
2088 hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
2089 drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
2090 drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
2091 rc = lpfc_sli4_rq_put(hrq, drq, &hrqe, &drqe);
2094 hbq_buf->tag = (rc | (hbqno << 16));
2095 list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
2099 /* HBQ for ELS and CT traffic. */
2100 static struct lpfc_hbq_init lpfc_els_hbq = {
2105 .ring_mask = (1 << LPFC_ELS_RING),
2112 struct lpfc_hbq_init *lpfc_hbq_defs[] = {
2117 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
2118 * @phba: Pointer to HBA context object.
2119 * @hbqno: HBQ number.
2120 * @count: Number of HBQ buffers to be posted.
2122 * This function is called with no lock held to post more hbq buffers to the
2123 * given HBQ. The function returns the number of HBQ buffers successfully
2127 lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
2129 uint32_t i, posted = 0;
2130 unsigned long flags;
2131 struct hbq_dmabuf *hbq_buffer;
2132 LIST_HEAD(hbq_buf_list);
2133 if (!phba->hbqs[hbqno].hbq_alloc_buffer)
2136 if ((phba->hbqs[hbqno].buffer_count + count) >
2137 lpfc_hbq_defs[hbqno]->entry_count)
2138 count = lpfc_hbq_defs[hbqno]->entry_count -
2139 phba->hbqs[hbqno].buffer_count;
2142 /* Allocate HBQ entries */
2143 for (i = 0; i < count; i++) {
2144 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
2147 list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
2149 /* Check whether HBQ is still in use */
2150 spin_lock_irqsave(&phba->hbalock, flags);
2151 if (!phba->hbq_in_use)
2153 while (!list_empty(&hbq_buf_list)) {
2154 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
2156 hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
2158 if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
2159 phba->hbqs[hbqno].buffer_count++;
2162 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
2164 spin_unlock_irqrestore(&phba->hbalock, flags);
2167 spin_unlock_irqrestore(&phba->hbalock, flags);
2168 while (!list_empty(&hbq_buf_list)) {
2169 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
2171 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
2177 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
2178 * @phba: Pointer to HBA context object.
2181 * This function posts more buffers to the HBQ. This function
2182 * is called with no lock held. The function returns the number of HBQ entries
2183 * successfully allocated.
2186 lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
2188 if (phba->sli_rev == LPFC_SLI_REV4)
2191 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
2192 lpfc_hbq_defs[qno]->add_count);
2196 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
2197 * @phba: Pointer to HBA context object.
2198 * @qno: HBQ queue number.
2200 * This function is called from SLI initialization code path with
2201 * no lock held to post initial HBQ buffers to firmware. The
2202 * function returns the number of HBQ entries successfully allocated.
2205 lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
2207 if (phba->sli_rev == LPFC_SLI_REV4)
2208 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
2209 lpfc_hbq_defs[qno]->entry_count);
2211 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
2212 lpfc_hbq_defs[qno]->init_count);
2216 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
2217 * @phba: Pointer to HBA context object.
2218 * @hbqno: HBQ number.
2220 * This function removes the first hbq buffer on an hbq list and returns a
2221 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
2223 static struct hbq_dmabuf *
2224 lpfc_sli_hbqbuf_get(struct list_head *rb_list)
2226 struct lpfc_dmabuf *d_buf;
2228 list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
2231 return container_of(d_buf, struct hbq_dmabuf, dbuf);
2235 * lpfc_sli_rqbuf_get - Remove the first dma buffer off of an RQ list
2236 * @phba: Pointer to HBA context object.
2237 * @hbqno: HBQ number.
2239 * This function removes the first RQ buffer on an RQ buffer list and returns a
2240 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
2242 static struct rqb_dmabuf *
2243 lpfc_sli_rqbuf_get(struct lpfc_hba *phba, struct lpfc_queue *hrq)
2245 struct lpfc_dmabuf *h_buf;
2246 struct lpfc_rqb *rqbp;
2249 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
2250 struct lpfc_dmabuf, list);
2253 rqbp->buffer_count--;
2254 return container_of(h_buf, struct rqb_dmabuf, hbuf);
2258 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
2259 * @phba: Pointer to HBA context object.
2260 * @tag: Tag of the hbq buffer.
2262 * This function searches for the hbq buffer associated with the given tag in
2263 * the hbq buffer list. If it finds the hbq buffer, it returns the hbq_buffer
2264 * otherwise it returns NULL.
2266 static struct hbq_dmabuf *
2267 lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
2269 struct lpfc_dmabuf *d_buf;
2270 struct hbq_dmabuf *hbq_buf;
2274 if (hbqno >= LPFC_MAX_HBQS)
2277 spin_lock_irq(&phba->hbalock);
2278 list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
2279 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
2280 if (hbq_buf->tag == tag) {
2281 spin_unlock_irq(&phba->hbalock);
2285 spin_unlock_irq(&phba->hbalock);
2286 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT,
2287 "1803 Bad hbq tag. Data: x%x x%x\n",
2288 tag, phba->hbqs[tag >> 16].buffer_count);
2293 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
2294 * @phba: Pointer to HBA context object.
2295 * @hbq_buffer: Pointer to HBQ buffer.
2297 * This function is called with hbalock. This function gives back
2298 * the hbq buffer to firmware. If the HBQ does not have space to
2299 * post the buffer, it will free the buffer.
2302 lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
2307 hbqno = hbq_buffer->tag >> 16;
2308 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
2309 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
2314 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
2315 * @mbxCommand: mailbox command code.
2317 * This function is called by the mailbox event handler function to verify
2318 * that the completed mailbox command is a legitimate mailbox command. If the
2319 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
2320 * and the mailbox event handler will take the HBA offline.
2323 lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
2327 switch (mbxCommand) {
2331 case MBX_WRITE_VPARMS:
2332 case MBX_RUN_BIU_DIAG:
2335 case MBX_CONFIG_LINK:
2336 case MBX_CONFIG_RING:
2337 case MBX_RESET_RING:
2338 case MBX_READ_CONFIG:
2339 case MBX_READ_RCONFIG:
2340 case MBX_READ_SPARM:
2341 case MBX_READ_STATUS:
2345 case MBX_READ_LNK_STAT:
2347 case MBX_UNREG_LOGIN:
2349 case MBX_DUMP_MEMORY:
2350 case MBX_DUMP_CONTEXT:
2353 case MBX_UPDATE_CFG:
2355 case MBX_DEL_LD_ENTRY:
2356 case MBX_RUN_PROGRAM:
2358 case MBX_SET_VARIABLE:
2359 case MBX_UNREG_D_ID:
2360 case MBX_KILL_BOARD:
2361 case MBX_CONFIG_FARP:
2364 case MBX_RUN_BIU_DIAG64:
2365 case MBX_CONFIG_PORT:
2366 case MBX_READ_SPARM64:
2367 case MBX_READ_RPI64:
2368 case MBX_REG_LOGIN64:
2369 case MBX_READ_TOPOLOGY:
2372 case MBX_LOAD_EXP_ROM:
2373 case MBX_ASYNCEVT_ENABLE:
2377 case MBX_PORT_CAPABILITIES:
2378 case MBX_PORT_IOV_CONTROL:
2379 case MBX_SLI4_CONFIG:
2380 case MBX_SLI4_REQ_FTRS:
2382 case MBX_UNREG_FCFI:
2387 case MBX_RESUME_RPI:
2388 case MBX_READ_EVENT_LOG_STATUS:
2389 case MBX_READ_EVENT_LOG:
2390 case MBX_SECURITY_MGMT:
2392 case MBX_ACCESS_VDATA:
2403 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
2404 * @phba: Pointer to HBA context object.
2405 * @pmboxq: Pointer to mailbox command.
2407 * This is completion handler function for mailbox commands issued from
2408 * lpfc_sli_issue_mbox_wait function. This function is called by the
2409 * mailbox event handler function with no lock held. This function
2410 * will wake up thread waiting on the wait queue pointed by context1
2414 lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
2416 unsigned long drvr_flag;
2417 struct completion *pmbox_done;
2420 * If pmbox_done is empty, the driver thread gave up waiting and
2421 * continued running.
2423 pmboxq->mbox_flag |= LPFC_MBX_WAKE;
2424 spin_lock_irqsave(&phba->hbalock, drvr_flag);
2425 pmbox_done = (struct completion *)pmboxq->context3;
2427 complete(pmbox_done);
2428 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
2433 __lpfc_sli_rpi_release(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
2435 unsigned long iflags;
2437 if (ndlp->nlp_flag & NLP_RELEASE_RPI) {
2438 lpfc_sli4_free_rpi(vport->phba, ndlp->nlp_rpi);
2439 spin_lock_irqsave(&vport->phba->ndlp_lock, iflags);
2440 ndlp->nlp_flag &= ~NLP_RELEASE_RPI;
2441 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
2442 spin_unlock_irqrestore(&vport->phba->ndlp_lock, iflags);
2444 ndlp->nlp_flag &= ~NLP_UNREG_INP;
2448 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
2449 * @phba: Pointer to HBA context object.
2450 * @pmb: Pointer to mailbox object.
2452 * This function is the default mailbox completion handler. It
2453 * frees the memory resources associated with the completed mailbox
2454 * command. If the completed command is a REG_LOGIN mailbox command,
2455 * this function will issue a UREG_LOGIN to re-claim the RPI.
2458 lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2460 struct lpfc_vport *vport = pmb->vport;
2461 struct lpfc_dmabuf *mp;
2462 struct lpfc_nodelist *ndlp;
2463 struct Scsi_Host *shost;
2467 mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
2470 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2475 * If a REG_LOGIN succeeded after node is destroyed or node
2476 * is in re-discovery driver need to cleanup the RPI.
2478 if (!(phba->pport->load_flag & FC_UNLOADING) &&
2479 pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
2480 !pmb->u.mb.mbxStatus) {
2481 rpi = pmb->u.mb.un.varWords[0];
2482 vpi = pmb->u.mb.un.varRegLogin.vpi;
2483 lpfc_unreg_login(phba, vpi, rpi, pmb);
2485 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2486 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2487 if (rc != MBX_NOT_FINISHED)
2491 if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) &&
2492 !(phba->pport->load_flag & FC_UNLOADING) &&
2493 !pmb->u.mb.mbxStatus) {
2494 shost = lpfc_shost_from_vport(vport);
2495 spin_lock_irq(shost->host_lock);
2496 vport->vpi_state |= LPFC_VPI_REGISTERED;
2497 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
2498 spin_unlock_irq(shost->host_lock);
2501 if (pmb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
2502 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
2504 pmb->ctx_buf = NULL;
2505 pmb->ctx_ndlp = NULL;
2508 if (pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) {
2509 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
2511 /* Check to see if there are any deferred events to process */
2515 KERN_INFO, LOG_MBOX | LOG_DISCOVERY,
2516 "1438 UNREG cmpl deferred mbox x%x "
2517 "on NPort x%x Data: x%x x%x %px\n",
2518 ndlp->nlp_rpi, ndlp->nlp_DID,
2519 ndlp->nlp_flag, ndlp->nlp_defer_did, ndlp);
2521 if ((ndlp->nlp_flag & NLP_UNREG_INP) &&
2522 (ndlp->nlp_defer_did != NLP_EVT_NOTHING_PENDING)) {
2523 ndlp->nlp_flag &= ~NLP_UNREG_INP;
2524 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING;
2525 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
2527 __lpfc_sli_rpi_release(vport, ndlp);
2529 pmb->ctx_ndlp = NULL;
2533 /* Check security permission status on INIT_LINK mailbox command */
2534 if ((pmb->u.mb.mbxCommand == MBX_INIT_LINK) &&
2535 (pmb->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
2536 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2537 "2860 SLI authentication is required "
2538 "for INIT_LINK but has not done yet\n");
2540 if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
2541 lpfc_sli4_mbox_cmd_free(phba, pmb);
2543 mempool_free(pmb, phba->mbox_mem_pool);
2546 * lpfc_sli4_unreg_rpi_cmpl_clr - mailbox completion handler
2547 * @phba: Pointer to HBA context object.
2548 * @pmb: Pointer to mailbox object.
2550 * This function is the unreg rpi mailbox completion handler. It
2551 * frees the memory resources associated with the completed mailbox
2552 * command. An additional refrenece is put on the ndlp to prevent
2553 * lpfc_nlp_release from freeing the rpi bit in the bitmask before
2554 * the unreg mailbox command completes, this routine puts the
2559 lpfc_sli4_unreg_rpi_cmpl_clr(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2561 struct lpfc_vport *vport = pmb->vport;
2562 struct lpfc_nodelist *ndlp;
2564 ndlp = pmb->ctx_ndlp;
2565 if (pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) {
2566 if (phba->sli_rev == LPFC_SLI_REV4 &&
2567 (bf_get(lpfc_sli_intf_if_type,
2568 &phba->sli4_hba.sli_intf) >=
2569 LPFC_SLI_INTF_IF_TYPE_2)) {
2572 vport, KERN_INFO, LOG_MBOX | LOG_SLI,
2573 "0010 UNREG_LOGIN vpi:%x "
2574 "rpi:%x DID:%x defer x%x flg x%x "
2576 vport->vpi, ndlp->nlp_rpi,
2577 ndlp->nlp_DID, ndlp->nlp_defer_did,
2579 ndlp->nlp_usg_map, ndlp);
2580 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
2583 /* Check to see if there are any deferred
2586 if ((ndlp->nlp_flag & NLP_UNREG_INP) &&
2587 (ndlp->nlp_defer_did !=
2588 NLP_EVT_NOTHING_PENDING)) {
2590 vport, KERN_INFO, LOG_DISCOVERY,
2591 "4111 UNREG cmpl deferred "
2593 "NPort x%x Data: x%x x%px\n",
2594 ndlp->nlp_rpi, ndlp->nlp_DID,
2595 ndlp->nlp_defer_did, ndlp);
2596 ndlp->nlp_flag &= ~NLP_UNREG_INP;
2597 ndlp->nlp_defer_did =
2598 NLP_EVT_NOTHING_PENDING;
2599 lpfc_issue_els_plogi(
2600 vport, ndlp->nlp_DID, 0);
2602 __lpfc_sli_rpi_release(vport, ndlp);
2608 mempool_free(pmb, phba->mbox_mem_pool);
2612 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
2613 * @phba: Pointer to HBA context object.
2615 * This function is called with no lock held. This function processes all
2616 * the completed mailbox commands and gives it to upper layers. The interrupt
2617 * service routine processes mailbox completion interrupt and adds completed
2618 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
2619 * Worker thread call lpfc_sli_handle_mb_event, which will return the
2620 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
2621 * function returns the mailbox commands to the upper layer by calling the
2622 * completion handler function of each mailbox.
2625 lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
2632 phba->sli.slistat.mbox_event++;
2634 /* Get all completed mailboxe buffers into the cmplq */
2635 spin_lock_irq(&phba->hbalock);
2636 list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
2637 spin_unlock_irq(&phba->hbalock);
2639 /* Get a Mailbox buffer to setup mailbox commands for callback */
2641 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
2647 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
2649 lpfc_debugfs_disc_trc(pmb->vport,
2650 LPFC_DISC_TRC_MBOX_VPORT,
2651 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
2652 (uint32_t)pmbox->mbxCommand,
2653 pmbox->un.varWords[0],
2654 pmbox->un.varWords[1]);
2657 lpfc_debugfs_disc_trc(phba->pport,
2659 "MBOX cmpl: cmd:x%x mb:x%x x%x",
2660 (uint32_t)pmbox->mbxCommand,
2661 pmbox->un.varWords[0],
2662 pmbox->un.varWords[1]);
2667 * It is a fatal error if unknown mbox command completion.
2669 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
2671 /* Unknown mailbox command compl */
2672 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2673 "(%d):0323 Unknown Mailbox command "
2674 "x%x (x%x/x%x) Cmpl\n",
2675 pmb->vport ? pmb->vport->vpi : 0,
2677 lpfc_sli_config_mbox_subsys_get(phba,
2679 lpfc_sli_config_mbox_opcode_get(phba,
2681 phba->link_state = LPFC_HBA_ERROR;
2682 phba->work_hs = HS_FFER3;
2683 lpfc_handle_eratt(phba);
2687 if (pmbox->mbxStatus) {
2688 phba->sli.slistat.mbox_stat_err++;
2689 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
2690 /* Mbox cmd cmpl error - RETRYing */
2691 lpfc_printf_log(phba, KERN_INFO,
2693 "(%d):0305 Mbox cmd cmpl "
2694 "error - RETRYing Data: x%x "
2695 "(x%x/x%x) x%x x%x x%x\n",
2696 pmb->vport ? pmb->vport->vpi : 0,
2698 lpfc_sli_config_mbox_subsys_get(phba,
2700 lpfc_sli_config_mbox_opcode_get(phba,
2703 pmbox->un.varWords[0],
2704 pmb->vport->port_state);
2705 pmbox->mbxStatus = 0;
2706 pmbox->mbxOwner = OWN_HOST;
2707 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2708 if (rc != MBX_NOT_FINISHED)
2713 /* Mailbox cmd <cmd> Cmpl <cmpl> */
2714 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
2715 "(%d):0307 Mailbox cmd x%x (x%x/x%x) Cmpl %pf "
2716 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
2718 pmb->vport ? pmb->vport->vpi : 0,
2720 lpfc_sli_config_mbox_subsys_get(phba, pmb),
2721 lpfc_sli_config_mbox_opcode_get(phba, pmb),
2723 *((uint32_t *) pmbox),
2724 pmbox->un.varWords[0],
2725 pmbox->un.varWords[1],
2726 pmbox->un.varWords[2],
2727 pmbox->un.varWords[3],
2728 pmbox->un.varWords[4],
2729 pmbox->un.varWords[5],
2730 pmbox->un.varWords[6],
2731 pmbox->un.varWords[7],
2732 pmbox->un.varWords[8],
2733 pmbox->un.varWords[9],
2734 pmbox->un.varWords[10]);
2737 pmb->mbox_cmpl(phba,pmb);
2743 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
2744 * @phba: Pointer to HBA context object.
2745 * @pring: Pointer to driver SLI ring object.
2748 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
2749 * is set in the tag the buffer is posted for a particular exchange,
2750 * the function will return the buffer without replacing the buffer.
2751 * If the buffer is for unsolicited ELS or CT traffic, this function
2752 * returns the buffer and also posts another buffer to the firmware.
2754 static struct lpfc_dmabuf *
2755 lpfc_sli_get_buff(struct lpfc_hba *phba,
2756 struct lpfc_sli_ring *pring,
2759 struct hbq_dmabuf *hbq_entry;
2761 if (tag & QUE_BUFTAG_BIT)
2762 return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
2763 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
2766 return &hbq_entry->dbuf;
2770 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
2771 * @phba: Pointer to HBA context object.
2772 * @pring: Pointer to driver SLI ring object.
2773 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
2774 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
2775 * @fch_type: the type for the first frame of the sequence.
2777 * This function is called with no lock held. This function uses the r_ctl and
2778 * type of the received sequence to find the correct callback function to call
2779 * to process the sequence.
2782 lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2783 struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
2790 lpfc_nvmet_unsol_ls_event(phba, pring, saveq);
2796 /* unSolicited Responses */
2797 if (pring->prt[0].profile) {
2798 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
2799 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
2803 /* We must search, based on rctl / type
2804 for the right routine */
2805 for (i = 0; i < pring->num_mask; i++) {
2806 if ((pring->prt[i].rctl == fch_r_ctl) &&
2807 (pring->prt[i].type == fch_type)) {
2808 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
2809 (pring->prt[i].lpfc_sli_rcv_unsol_event)
2810 (phba, pring, saveq);
2818 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
2819 * @phba: Pointer to HBA context object.
2820 * @pring: Pointer to driver SLI ring object.
2821 * @saveq: Pointer to the unsolicited iocb.
2823 * This function is called with no lock held by the ring event handler
2824 * when there is an unsolicited iocb posted to the response ring by the
2825 * firmware. This function gets the buffer associated with the iocbs
2826 * and calls the event handler for the ring. This function handles both
2827 * qring buffers and hbq buffers.
2828 * When the function returns 1 the caller can free the iocb object otherwise
2829 * upper layer functions will free the iocb objects.
2832 lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2833 struct lpfc_iocbq *saveq)
2837 uint32_t Rctl, Type;
2838 struct lpfc_iocbq *iocbq;
2839 struct lpfc_dmabuf *dmzbuf;
2841 irsp = &(saveq->iocb);
2843 if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
2844 if (pring->lpfc_sli_rcv_async_status)
2845 pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
2847 lpfc_printf_log(phba,
2850 "0316 Ring %d handler: unexpected "
2851 "ASYNC_STATUS iocb received evt_code "
2854 irsp->un.asyncstat.evt_code);
2858 if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
2859 (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
2860 if (irsp->ulpBdeCount > 0) {
2861 dmzbuf = lpfc_sli_get_buff(phba, pring,
2862 irsp->un.ulpWord[3]);
2863 lpfc_in_buf_free(phba, dmzbuf);
2866 if (irsp->ulpBdeCount > 1) {
2867 dmzbuf = lpfc_sli_get_buff(phba, pring,
2868 irsp->unsli3.sli3Words[3]);
2869 lpfc_in_buf_free(phba, dmzbuf);
2872 if (irsp->ulpBdeCount > 2) {
2873 dmzbuf = lpfc_sli_get_buff(phba, pring,
2874 irsp->unsli3.sli3Words[7]);
2875 lpfc_in_buf_free(phba, dmzbuf);
2881 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
2882 if (irsp->ulpBdeCount != 0) {
2883 saveq->context2 = lpfc_sli_get_buff(phba, pring,
2884 irsp->un.ulpWord[3]);
2885 if (!saveq->context2)
2886 lpfc_printf_log(phba,
2889 "0341 Ring %d Cannot find buffer for "
2890 "an unsolicited iocb. tag 0x%x\n",
2892 irsp->un.ulpWord[3]);
2894 if (irsp->ulpBdeCount == 2) {
2895 saveq->context3 = lpfc_sli_get_buff(phba, pring,
2896 irsp->unsli3.sli3Words[7]);
2897 if (!saveq->context3)
2898 lpfc_printf_log(phba,
2901 "0342 Ring %d Cannot find buffer for an"
2902 " unsolicited iocb. tag 0x%x\n",
2904 irsp->unsli3.sli3Words[7]);
2906 list_for_each_entry(iocbq, &saveq->list, list) {
2907 irsp = &(iocbq->iocb);
2908 if (irsp->ulpBdeCount != 0) {
2909 iocbq->context2 = lpfc_sli_get_buff(phba, pring,
2910 irsp->un.ulpWord[3]);
2911 if (!iocbq->context2)
2912 lpfc_printf_log(phba,
2915 "0343 Ring %d Cannot find "
2916 "buffer for an unsolicited iocb"
2917 ". tag 0x%x\n", pring->ringno,
2918 irsp->un.ulpWord[3]);
2920 if (irsp->ulpBdeCount == 2) {
2921 iocbq->context3 = lpfc_sli_get_buff(phba, pring,
2922 irsp->unsli3.sli3Words[7]);
2923 if (!iocbq->context3)
2924 lpfc_printf_log(phba,
2927 "0344 Ring %d Cannot find "
2928 "buffer for an unsolicited "
2931 irsp->unsli3.sli3Words[7]);
2935 if (irsp->ulpBdeCount != 0 &&
2936 (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
2937 irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
2940 /* search continue save q for same XRI */
2941 list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
2942 if (iocbq->iocb.unsli3.rcvsli3.ox_id ==
2943 saveq->iocb.unsli3.rcvsli3.ox_id) {
2944 list_add_tail(&saveq->list, &iocbq->list);
2950 list_add_tail(&saveq->clist,
2951 &pring->iocb_continue_saveq);
2952 if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
2953 list_del_init(&iocbq->clist);
2955 irsp = &(saveq->iocb);
2959 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
2960 (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
2961 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
2962 Rctl = FC_RCTL_ELS_REQ;
2965 w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
2966 Rctl = w5p->hcsw.Rctl;
2967 Type = w5p->hcsw.Type;
2969 /* Firmware Workaround */
2970 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
2971 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
2972 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
2973 Rctl = FC_RCTL_ELS_REQ;
2975 w5p->hcsw.Rctl = Rctl;
2976 w5p->hcsw.Type = Type;
2980 if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
2981 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2982 "0313 Ring %d handler: unexpected Rctl x%x "
2983 "Type x%x received\n",
2984 pring->ringno, Rctl, Type);
2990 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
2991 * @phba: Pointer to HBA context object.
2992 * @pring: Pointer to driver SLI ring object.
2993 * @prspiocb: Pointer to response iocb object.
2995 * This function looks up the iocb_lookup table to get the command iocb
2996 * corresponding to the given response iocb using the iotag of the
2997 * response iocb. The driver calls this function with the hbalock held
2998 * for SLI3 ports or the ring lock held for SLI4 ports.
2999 * This function returns the command iocb object if it finds the command
3000 * iocb else returns NULL.
3002 static struct lpfc_iocbq *
3003 lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
3004 struct lpfc_sli_ring *pring,
3005 struct lpfc_iocbq *prspiocb)
3007 struct lpfc_iocbq *cmd_iocb = NULL;
3009 spinlock_t *temp_lock = NULL;
3010 unsigned long iflag = 0;
3012 if (phba->sli_rev == LPFC_SLI_REV4)
3013 temp_lock = &pring->ring_lock;
3015 temp_lock = &phba->hbalock;
3017 spin_lock_irqsave(temp_lock, iflag);
3018 iotag = prspiocb->iocb.ulpIoTag;
3020 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
3021 cmd_iocb = phba->sli.iocbq_lookup[iotag];
3022 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
3023 /* remove from txcmpl queue list */
3024 list_del_init(&cmd_iocb->list);
3025 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
3026 pring->txcmplq_cnt--;
3027 spin_unlock_irqrestore(temp_lock, iflag);
3032 spin_unlock_irqrestore(temp_lock, iflag);
3033 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3034 "0317 iotag x%x is out of "
3035 "range: max iotag x%x wd0 x%x\n",
3036 iotag, phba->sli.last_iotag,
3037 *(((uint32_t *) &prspiocb->iocb) + 7));
3042 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
3043 * @phba: Pointer to HBA context object.
3044 * @pring: Pointer to driver SLI ring object.
3047 * This function looks up the iocb_lookup table to get the command iocb
3048 * corresponding to the given iotag. The driver calls this function with
3049 * the ring lock held because this function is an SLI4 port only helper.
3050 * This function returns the command iocb object if it finds the command
3051 * iocb else returns NULL.
3053 static struct lpfc_iocbq *
3054 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
3055 struct lpfc_sli_ring *pring, uint16_t iotag)
3057 struct lpfc_iocbq *cmd_iocb = NULL;
3058 spinlock_t *temp_lock = NULL;
3059 unsigned long iflag = 0;
3061 if (phba->sli_rev == LPFC_SLI_REV4)
3062 temp_lock = &pring->ring_lock;
3064 temp_lock = &phba->hbalock;
3066 spin_lock_irqsave(temp_lock, iflag);
3067 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
3068 cmd_iocb = phba->sli.iocbq_lookup[iotag];
3069 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
3070 /* remove from txcmpl queue list */
3071 list_del_init(&cmd_iocb->list);
3072 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
3073 pring->txcmplq_cnt--;
3074 spin_unlock_irqrestore(temp_lock, iflag);
3079 spin_unlock_irqrestore(temp_lock, iflag);
3080 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3081 "0372 iotag x%x lookup error: max iotag (x%x) "
3083 iotag, phba->sli.last_iotag,
3084 cmd_iocb ? cmd_iocb->iocb_flag : 0xffff);
3089 * lpfc_sli_process_sol_iocb - process solicited iocb completion
3090 * @phba: Pointer to HBA context object.
3091 * @pring: Pointer to driver SLI ring object.
3092 * @saveq: Pointer to the response iocb to be processed.
3094 * This function is called by the ring event handler for non-fcp
3095 * rings when there is a new response iocb in the response ring.
3096 * The caller is not required to hold any locks. This function
3097 * gets the command iocb associated with the response iocb and
3098 * calls the completion handler for the command iocb. If there
3099 * is no completion handler, the function will free the resources
3100 * associated with command iocb. If the response iocb is for
3101 * an already aborted command iocb, the status of the completion
3102 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
3103 * This function always returns 1.
3106 lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3107 struct lpfc_iocbq *saveq)
3109 struct lpfc_iocbq *cmdiocbp;
3111 unsigned long iflag;
3113 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
3115 if (cmdiocbp->iocb_cmpl) {
3117 * If an ELS command failed send an event to mgmt
3120 if (saveq->iocb.ulpStatus &&
3121 (pring->ringno == LPFC_ELS_RING) &&
3122 (cmdiocbp->iocb.ulpCommand ==
3123 CMD_ELS_REQUEST64_CR))
3124 lpfc_send_els_failure_event(phba,
3128 * Post all ELS completions to the worker thread.
3129 * All other are passed to the completion callback.
3131 if (pring->ringno == LPFC_ELS_RING) {
3132 if ((phba->sli_rev < LPFC_SLI_REV4) &&
3133 (cmdiocbp->iocb_flag &
3134 LPFC_DRIVER_ABORTED)) {
3135 spin_lock_irqsave(&phba->hbalock,
3137 cmdiocbp->iocb_flag &=
3138 ~LPFC_DRIVER_ABORTED;
3139 spin_unlock_irqrestore(&phba->hbalock,
3141 saveq->iocb.ulpStatus =
3142 IOSTAT_LOCAL_REJECT;
3143 saveq->iocb.un.ulpWord[4] =
3146 /* Firmware could still be in progress
3147 * of DMAing payload, so don't free data
3148 * buffer till after a hbeat.
3150 spin_lock_irqsave(&phba->hbalock,
3152 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
3153 spin_unlock_irqrestore(&phba->hbalock,
3156 if (phba->sli_rev == LPFC_SLI_REV4) {
3157 if (saveq->iocb_flag &
3158 LPFC_EXCHANGE_BUSY) {
3159 /* Set cmdiocb flag for the
3160 * exchange busy so sgl (xri)
3161 * will not be released until
3162 * the abort xri is received
3166 &phba->hbalock, iflag);
3167 cmdiocbp->iocb_flag |=
3169 spin_unlock_irqrestore(
3170 &phba->hbalock, iflag);
3172 if (cmdiocbp->iocb_flag &
3173 LPFC_DRIVER_ABORTED) {
3175 * Clear LPFC_DRIVER_ABORTED
3176 * bit in case it was driver
3180 &phba->hbalock, iflag);
3181 cmdiocbp->iocb_flag &=
3182 ~LPFC_DRIVER_ABORTED;
3183 spin_unlock_irqrestore(
3184 &phba->hbalock, iflag);
3185 cmdiocbp->iocb.ulpStatus =
3186 IOSTAT_LOCAL_REJECT;
3187 cmdiocbp->iocb.un.ulpWord[4] =
3188 IOERR_ABORT_REQUESTED;
3190 * For SLI4, irsiocb contains
3191 * NO_XRI in sli_xritag, it
3192 * shall not affect releasing
3193 * sgl (xri) process.
3195 saveq->iocb.ulpStatus =
3196 IOSTAT_LOCAL_REJECT;
3197 saveq->iocb.un.ulpWord[4] =
3200 &phba->hbalock, iflag);
3202 LPFC_DELAY_MEM_FREE;
3203 spin_unlock_irqrestore(
3204 &phba->hbalock, iflag);
3208 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
3210 lpfc_sli_release_iocbq(phba, cmdiocbp);
3213 * Unknown initiating command based on the response iotag.
3214 * This could be the case on the ELS ring because of
3217 if (pring->ringno != LPFC_ELS_RING) {
3219 * Ring <ringno> handler: unexpected completion IoTag
3222 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3223 "0322 Ring %d handler: "
3224 "unexpected completion IoTag x%x "
3225 "Data: x%x x%x x%x x%x\n",
3227 saveq->iocb.ulpIoTag,
3228 saveq->iocb.ulpStatus,
3229 saveq->iocb.un.ulpWord[4],
3230 saveq->iocb.ulpCommand,
3231 saveq->iocb.ulpContext);
3239 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
3240 * @phba: Pointer to HBA context object.
3241 * @pring: Pointer to driver SLI ring object.
3243 * This function is called from the iocb ring event handlers when
3244 * put pointer is ahead of the get pointer for a ring. This function signal
3245 * an error attention condition to the worker thread and the worker
3246 * thread will transition the HBA to offline state.
3249 lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3251 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
3253 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
3254 * rsp ring <portRspMax>
3256 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3257 "0312 Ring %d handler: portRspPut %d "
3258 "is bigger than rsp ring %d\n",
3259 pring->ringno, le32_to_cpu(pgp->rspPutInx),
3260 pring->sli.sli3.numRiocb);
3262 phba->link_state = LPFC_HBA_ERROR;
3265 * All error attention handlers are posted to
3268 phba->work_ha |= HA_ERATT;
3269 phba->work_hs = HS_FFER3;
3271 lpfc_worker_wake_up(phba);
3277 * lpfc_poll_eratt - Error attention polling timer timeout handler
3278 * @ptr: Pointer to address of HBA context object.
3280 * This function is invoked by the Error Attention polling timer when the
3281 * timer times out. It will check the SLI Error Attention register for
3282 * possible attention events. If so, it will post an Error Attention event
3283 * and wake up worker thread to process it. Otherwise, it will set up the
3284 * Error Attention polling timer for the next poll.
3286 void lpfc_poll_eratt(struct timer_list *t)
3288 struct lpfc_hba *phba;
3290 uint64_t sli_intr, cnt;
3292 phba = from_timer(phba, t, eratt_poll);
3294 /* Here we will also keep track of interrupts per sec of the hba */
3295 sli_intr = phba->sli.slistat.sli_intr;
3297 if (phba->sli.slistat.sli_prev_intr > sli_intr)
3298 cnt = (((uint64_t)(-1) - phba->sli.slistat.sli_prev_intr) +
3301 cnt = (sli_intr - phba->sli.slistat.sli_prev_intr);
3303 /* 64-bit integer division not supported on 32-bit x86 - use do_div */
3304 do_div(cnt, phba->eratt_poll_interval);
3305 phba->sli.slistat.sli_ips = cnt;
3307 phba->sli.slistat.sli_prev_intr = sli_intr;
3309 /* Check chip HA register for error event */
3310 eratt = lpfc_sli_check_eratt(phba);
3313 /* Tell the worker thread there is work to do */
3314 lpfc_worker_wake_up(phba);
3316 /* Restart the timer for next eratt poll */
3317 mod_timer(&phba->eratt_poll,
3319 msecs_to_jiffies(1000 * phba->eratt_poll_interval));
3325 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
3326 * @phba: Pointer to HBA context object.
3327 * @pring: Pointer to driver SLI ring object.
3328 * @mask: Host attention register mask for this ring.
3330 * This function is called from the interrupt context when there is a ring
3331 * event for the fcp ring. The caller does not hold any lock.
3332 * The function processes each response iocb in the response ring until it
3333 * finds an iocb with LE bit set and chains all the iocbs up to the iocb with
3334 * LE bit set. The function will call the completion handler of the command iocb
3335 * if the response iocb indicates a completion for a command iocb or it is
3336 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
3337 * function if this is an unsolicited iocb.
3338 * This routine presumes LPFC_FCP_RING handling and doesn't bother
3339 * to check it explicitly.
3342 lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
3343 struct lpfc_sli_ring *pring, uint32_t mask)
3345 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
3346 IOCB_t *irsp = NULL;
3347 IOCB_t *entry = NULL;
3348 struct lpfc_iocbq *cmdiocbq = NULL;
3349 struct lpfc_iocbq rspiocbq;
3351 uint32_t portRspPut, portRspMax;
3353 lpfc_iocb_type type;
3354 unsigned long iflag;
3355 uint32_t rsp_cmpl = 0;
3357 spin_lock_irqsave(&phba->hbalock, iflag);
3358 pring->stats.iocb_event++;
3361 * The next available response entry should never exceed the maximum
3362 * entries. If it does, treat it as an adapter hardware error.
3364 portRspMax = pring->sli.sli3.numRiocb;
3365 portRspPut = le32_to_cpu(pgp->rspPutInx);
3366 if (unlikely(portRspPut >= portRspMax)) {
3367 lpfc_sli_rsp_pointers_error(phba, pring);
3368 spin_unlock_irqrestore(&phba->hbalock, iflag);
3371 if (phba->fcp_ring_in_use) {
3372 spin_unlock_irqrestore(&phba->hbalock, iflag);
3375 phba->fcp_ring_in_use = 1;
3378 while (pring->sli.sli3.rspidx != portRspPut) {
3380 * Fetch an entry off the ring and copy it into a local data
3381 * structure. The copy involves a byte-swap since the
3382 * network byte order and pci byte orders are different.
3384 entry = lpfc_resp_iocb(phba, pring);
3385 phba->last_completion_time = jiffies;
3387 if (++pring->sli.sli3.rspidx >= portRspMax)
3388 pring->sli.sli3.rspidx = 0;
3390 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
3391 (uint32_t *) &rspiocbq.iocb,
3392 phba->iocb_rsp_size);
3393 INIT_LIST_HEAD(&(rspiocbq.list));
3394 irsp = &rspiocbq.iocb;
3396 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
3397 pring->stats.iocb_rsp++;
3400 if (unlikely(irsp->ulpStatus)) {
3402 * If resource errors reported from HBA, reduce
3403 * queuedepths of the SCSI device.
3405 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3406 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3407 IOERR_NO_RESOURCES)) {
3408 spin_unlock_irqrestore(&phba->hbalock, iflag);
3409 phba->lpfc_rampdown_queue_depth(phba);
3410 spin_lock_irqsave(&phba->hbalock, iflag);
3413 /* Rsp ring <ringno> error: IOCB */
3414 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3415 "0336 Rsp Ring %d error: IOCB Data: "
3416 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
3418 irsp->un.ulpWord[0],
3419 irsp->un.ulpWord[1],
3420 irsp->un.ulpWord[2],
3421 irsp->un.ulpWord[3],
3422 irsp->un.ulpWord[4],
3423 irsp->un.ulpWord[5],
3424 *(uint32_t *)&irsp->un1,
3425 *((uint32_t *)&irsp->un1 + 1));
3429 case LPFC_ABORT_IOCB:
3432 * Idle exchange closed via ABTS from port. No iocb
3433 * resources need to be recovered.
3435 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
3436 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3437 "0333 IOCB cmd 0x%x"
3438 " processed. Skipping"
3444 spin_unlock_irqrestore(&phba->hbalock, iflag);
3445 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
3447 spin_lock_irqsave(&phba->hbalock, iflag);
3448 if (unlikely(!cmdiocbq))
3450 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED)
3451 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
3452 if (cmdiocbq->iocb_cmpl) {
3453 spin_unlock_irqrestore(&phba->hbalock, iflag);
3454 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
3456 spin_lock_irqsave(&phba->hbalock, iflag);
3459 case LPFC_UNSOL_IOCB:
3460 spin_unlock_irqrestore(&phba->hbalock, iflag);
3461 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
3462 spin_lock_irqsave(&phba->hbalock, iflag);
3465 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3466 char adaptermsg[LPFC_MAX_ADPTMSG];
3467 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3468 memcpy(&adaptermsg[0], (uint8_t *) irsp,
3470 dev_warn(&((phba->pcidev)->dev),
3472 phba->brd_no, adaptermsg);
3474 /* Unknown IOCB command */
3475 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3476 "0334 Unknown IOCB command "
3477 "Data: x%x, x%x x%x x%x x%x\n",
3478 type, irsp->ulpCommand,
3487 * The response IOCB has been processed. Update the ring
3488 * pointer in SLIM. If the port response put pointer has not
3489 * been updated, sync the pgp->rspPutInx and fetch the new port
3490 * response put pointer.
3492 writel(pring->sli.sli3.rspidx,
3493 &phba->host_gp[pring->ringno].rspGetInx);
3495 if (pring->sli.sli3.rspidx == portRspPut)
3496 portRspPut = le32_to_cpu(pgp->rspPutInx);
3499 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
3500 pring->stats.iocb_rsp_full++;
3501 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3502 writel(status, phba->CAregaddr);
3503 readl(phba->CAregaddr);
3505 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3506 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3507 pring->stats.iocb_cmd_empty++;
3509 /* Force update of the local copy of cmdGetInx */
3510 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3511 lpfc_sli_resume_iocb(phba, pring);
3513 if ((pring->lpfc_sli_cmd_available))
3514 (pring->lpfc_sli_cmd_available) (phba, pring);
3518 phba->fcp_ring_in_use = 0;
3519 spin_unlock_irqrestore(&phba->hbalock, iflag);
3524 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
3525 * @phba: Pointer to HBA context object.
3526 * @pring: Pointer to driver SLI ring object.
3527 * @rspiocbp: Pointer to driver response IOCB object.
3529 * This function is called from the worker thread when there is a slow-path
3530 * response IOCB to process. This function chains all the response iocbs until
3531 * seeing the iocb with the LE bit set. The function will call
3532 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
3533 * completion of a command iocb. The function will call the
3534 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
3535 * The function frees the resources or calls the completion handler if this
3536 * iocb is an abort completion. The function returns NULL when the response
3537 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
3538 * this function shall chain the iocb on to the iocb_continueq and return the
3539 * response iocb passed in.
3541 static struct lpfc_iocbq *
3542 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3543 struct lpfc_iocbq *rspiocbp)
3545 struct lpfc_iocbq *saveq;
3546 struct lpfc_iocbq *cmdiocbp;
3547 struct lpfc_iocbq *next_iocb;
3548 IOCB_t *irsp = NULL;
3549 uint32_t free_saveq;
3550 uint8_t iocb_cmd_type;
3551 lpfc_iocb_type type;
3552 unsigned long iflag;
3555 spin_lock_irqsave(&phba->hbalock, iflag);
3556 /* First add the response iocb to the countinueq list */
3557 list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
3558 pring->iocb_continueq_cnt++;
3560 /* Now, determine whether the list is completed for processing */
3561 irsp = &rspiocbp->iocb;
3564 * By default, the driver expects to free all resources
3565 * associated with this iocb completion.
3568 saveq = list_get_first(&pring->iocb_continueq,
3569 struct lpfc_iocbq, list);
3570 irsp = &(saveq->iocb);
3571 list_del_init(&pring->iocb_continueq);
3572 pring->iocb_continueq_cnt = 0;
3574 pring->stats.iocb_rsp++;
3577 * If resource errors reported from HBA, reduce
3578 * queuedepths of the SCSI device.
3580 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3581 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3582 IOERR_NO_RESOURCES)) {
3583 spin_unlock_irqrestore(&phba->hbalock, iflag);
3584 phba->lpfc_rampdown_queue_depth(phba);
3585 spin_lock_irqsave(&phba->hbalock, iflag);
3588 if (irsp->ulpStatus) {
3589 /* Rsp ring <ringno> error: IOCB */
3590 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3591 "0328 Rsp Ring %d error: "
3596 "x%x x%x x%x x%x\n",
3598 irsp->un.ulpWord[0],
3599 irsp->un.ulpWord[1],
3600 irsp->un.ulpWord[2],
3601 irsp->un.ulpWord[3],
3602 irsp->un.ulpWord[4],
3603 irsp->un.ulpWord[5],
3604 *(((uint32_t *) irsp) + 6),
3605 *(((uint32_t *) irsp) + 7),
3606 *(((uint32_t *) irsp) + 8),
3607 *(((uint32_t *) irsp) + 9),
3608 *(((uint32_t *) irsp) + 10),
3609 *(((uint32_t *) irsp) + 11),
3610 *(((uint32_t *) irsp) + 12),
3611 *(((uint32_t *) irsp) + 13),
3612 *(((uint32_t *) irsp) + 14),
3613 *(((uint32_t *) irsp) + 15));
3617 * Fetch the IOCB command type and call the correct completion
3618 * routine. Solicited and Unsolicited IOCBs on the ELS ring
3619 * get freed back to the lpfc_iocb_list by the discovery
3622 iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
3623 type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
3626 spin_unlock_irqrestore(&phba->hbalock, iflag);
3627 rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
3628 spin_lock_irqsave(&phba->hbalock, iflag);
3631 case LPFC_UNSOL_IOCB:
3632 spin_unlock_irqrestore(&phba->hbalock, iflag);
3633 rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
3634 spin_lock_irqsave(&phba->hbalock, iflag);
3639 case LPFC_ABORT_IOCB:
3641 if (irsp->ulpCommand != CMD_XRI_ABORTED_CX) {
3642 spin_unlock_irqrestore(&phba->hbalock, iflag);
3643 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
3645 spin_lock_irqsave(&phba->hbalock, iflag);
3648 /* Call the specified completion routine */
3649 if (cmdiocbp->iocb_cmpl) {
3650 spin_unlock_irqrestore(&phba->hbalock,
3652 (cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
3654 spin_lock_irqsave(&phba->hbalock,
3657 __lpfc_sli_release_iocbq(phba,
3662 case LPFC_UNKNOWN_IOCB:
3663 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3664 char adaptermsg[LPFC_MAX_ADPTMSG];
3665 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3666 memcpy(&adaptermsg[0], (uint8_t *)irsp,
3668 dev_warn(&((phba->pcidev)->dev),
3670 phba->brd_no, adaptermsg);
3672 /* Unknown IOCB command */
3673 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3674 "0335 Unknown IOCB "
3675 "command Data: x%x "
3686 list_for_each_entry_safe(rspiocbp, next_iocb,
3687 &saveq->list, list) {
3688 list_del_init(&rspiocbp->list);
3689 __lpfc_sli_release_iocbq(phba, rspiocbp);
3691 __lpfc_sli_release_iocbq(phba, saveq);
3695 spin_unlock_irqrestore(&phba->hbalock, iflag);
3700 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
3701 * @phba: Pointer to HBA context object.
3702 * @pring: Pointer to driver SLI ring object.
3703 * @mask: Host attention register mask for this ring.
3705 * This routine wraps the actual slow_ring event process routine from the
3706 * API jump table function pointer from the lpfc_hba struct.
3709 lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
3710 struct lpfc_sli_ring *pring, uint32_t mask)
3712 phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
3716 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
3717 * @phba: Pointer to HBA context object.
3718 * @pring: Pointer to driver SLI ring object.
3719 * @mask: Host attention register mask for this ring.
3721 * This function is called from the worker thread when there is a ring event
3722 * for non-fcp rings. The caller does not hold any lock. The function will
3723 * remove each response iocb in the response ring and calls the handle
3724 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3727 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
3728 struct lpfc_sli_ring *pring, uint32_t mask)
3730 struct lpfc_pgp *pgp;
3732 IOCB_t *irsp = NULL;
3733 struct lpfc_iocbq *rspiocbp = NULL;
3734 uint32_t portRspPut, portRspMax;
3735 unsigned long iflag;
3738 pgp = &phba->port_gp[pring->ringno];
3739 spin_lock_irqsave(&phba->hbalock, iflag);
3740 pring->stats.iocb_event++;
3743 * The next available response entry should never exceed the maximum
3744 * entries. If it does, treat it as an adapter hardware error.
3746 portRspMax = pring->sli.sli3.numRiocb;
3747 portRspPut = le32_to_cpu(pgp->rspPutInx);
3748 if (portRspPut >= portRspMax) {
3750 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
3751 * rsp ring <portRspMax>
3753 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3754 "0303 Ring %d handler: portRspPut %d "
3755 "is bigger than rsp ring %d\n",
3756 pring->ringno, portRspPut, portRspMax);
3758 phba->link_state = LPFC_HBA_ERROR;
3759 spin_unlock_irqrestore(&phba->hbalock, iflag);
3761 phba->work_hs = HS_FFER3;
3762 lpfc_handle_eratt(phba);
3768 while (pring->sli.sli3.rspidx != portRspPut) {
3770 * Build a completion list and call the appropriate handler.
3771 * The process is to get the next available response iocb, get
3772 * a free iocb from the list, copy the response data into the
3773 * free iocb, insert to the continuation list, and update the
3774 * next response index to slim. This process makes response
3775 * iocb's in the ring available to DMA as fast as possible but
3776 * pays a penalty for a copy operation. Since the iocb is
3777 * only 32 bytes, this penalty is considered small relative to
3778 * the PCI reads for register values and a slim write. When
3779 * the ulpLe field is set, the entire Command has been
3782 entry = lpfc_resp_iocb(phba, pring);
3784 phba->last_completion_time = jiffies;
3785 rspiocbp = __lpfc_sli_get_iocbq(phba);
3786 if (rspiocbp == NULL) {
3787 printk(KERN_ERR "%s: out of buffers! Failing "
3788 "completion.\n", __func__);
3792 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
3793 phba->iocb_rsp_size);
3794 irsp = &rspiocbp->iocb;
3796 if (++pring->sli.sli3.rspidx >= portRspMax)
3797 pring->sli.sli3.rspidx = 0;
3799 if (pring->ringno == LPFC_ELS_RING) {
3800 lpfc_debugfs_slow_ring_trc(phba,
3801 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
3802 *(((uint32_t *) irsp) + 4),
3803 *(((uint32_t *) irsp) + 6),
3804 *(((uint32_t *) irsp) + 7));
3807 writel(pring->sli.sli3.rspidx,
3808 &phba->host_gp[pring->ringno].rspGetInx);
3810 spin_unlock_irqrestore(&phba->hbalock, iflag);
3811 /* Handle the response IOCB */
3812 rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
3813 spin_lock_irqsave(&phba->hbalock, iflag);
3816 * If the port response put pointer has not been updated, sync
3817 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
3818 * response put pointer.
3820 if (pring->sli.sli3.rspidx == portRspPut) {
3821 portRspPut = le32_to_cpu(pgp->rspPutInx);
3823 } /* while (pring->sli.sli3.rspidx != portRspPut) */
3825 if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
3826 /* At least one response entry has been freed */
3827 pring->stats.iocb_rsp_full++;
3828 /* SET RxRE_RSP in Chip Att register */
3829 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3830 writel(status, phba->CAregaddr);
3831 readl(phba->CAregaddr); /* flush */
3833 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3834 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3835 pring->stats.iocb_cmd_empty++;
3837 /* Force update of the local copy of cmdGetInx */
3838 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3839 lpfc_sli_resume_iocb(phba, pring);
3841 if ((pring->lpfc_sli_cmd_available))
3842 (pring->lpfc_sli_cmd_available) (phba, pring);
3846 spin_unlock_irqrestore(&phba->hbalock, iflag);
3851 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
3852 * @phba: Pointer to HBA context object.
3853 * @pring: Pointer to driver SLI ring object.
3854 * @mask: Host attention register mask for this ring.
3856 * This function is called from the worker thread when there is a pending
3857 * ELS response iocb on the driver internal slow-path response iocb worker
3858 * queue. The caller does not hold any lock. The function will remove each
3859 * response iocb from the response worker queue and calls the handle
3860 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3863 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
3864 struct lpfc_sli_ring *pring, uint32_t mask)
3866 struct lpfc_iocbq *irspiocbq;
3867 struct hbq_dmabuf *dmabuf;
3868 struct lpfc_cq_event *cq_event;
3869 unsigned long iflag;
3872 spin_lock_irqsave(&phba->hbalock, iflag);
3873 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
3874 spin_unlock_irqrestore(&phba->hbalock, iflag);
3875 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
3876 /* Get the response iocb from the head of work queue */
3877 spin_lock_irqsave(&phba->hbalock, iflag);
3878 list_remove_head(&phba->sli4_hba.sp_queue_event,
3879 cq_event, struct lpfc_cq_event, list);
3880 spin_unlock_irqrestore(&phba->hbalock, iflag);
3882 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
3883 case CQE_CODE_COMPL_WQE:
3884 irspiocbq = container_of(cq_event, struct lpfc_iocbq,
3886 /* Translate ELS WCQE to response IOCBQ */
3887 irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba,
3890 lpfc_sli_sp_handle_rspiocb(phba, pring,
3894 case CQE_CODE_RECEIVE:
3895 case CQE_CODE_RECEIVE_V1:
3896 dmabuf = container_of(cq_event, struct hbq_dmabuf,
3898 lpfc_sli4_handle_received_buffer(phba, dmabuf);
3905 /* Limit the number of events to 64 to avoid soft lockups */
3912 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
3913 * @phba: Pointer to HBA context object.
3914 * @pring: Pointer to driver SLI ring object.
3916 * This function aborts all iocbs in the given ring and frees all the iocb
3917 * objects in txq. This function issues an abort iocb for all the iocb commands
3918 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3919 * the return of this function. The caller is not required to hold any locks.
3922 lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3924 LIST_HEAD(completions);
3925 struct lpfc_iocbq *iocb, *next_iocb;
3927 if (pring->ringno == LPFC_ELS_RING) {
3928 lpfc_fabric_abort_hba(phba);
3931 /* Error everything on txq and txcmplq
3934 if (phba->sli_rev >= LPFC_SLI_REV4) {
3935 spin_lock_irq(&pring->ring_lock);
3936 list_splice_init(&pring->txq, &completions);
3938 spin_unlock_irq(&pring->ring_lock);
3940 spin_lock_irq(&phba->hbalock);
3941 /* Next issue ABTS for everything on the txcmplq */
3942 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3943 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3944 spin_unlock_irq(&phba->hbalock);
3946 spin_lock_irq(&phba->hbalock);
3947 list_splice_init(&pring->txq, &completions);
3950 /* Next issue ABTS for everything on the txcmplq */
3951 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3952 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3953 spin_unlock_irq(&phba->hbalock);
3956 /* Cancel all the IOCBs from the completions list */
3957 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3962 * lpfc_sli_abort_fcp_rings - Abort all iocbs in all FCP rings
3963 * @phba: Pointer to HBA context object.
3964 * @pring: Pointer to driver SLI ring object.
3966 * This function aborts all iocbs in FCP rings and frees all the iocb
3967 * objects in txq. This function issues an abort iocb for all the iocb commands
3968 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3969 * the return of this function. The caller is not required to hold any locks.
3972 lpfc_sli_abort_fcp_rings(struct lpfc_hba *phba)
3974 struct lpfc_sli *psli = &phba->sli;
3975 struct lpfc_sli_ring *pring;
3978 /* Look on all the FCP Rings for the iotag */
3979 if (phba->sli_rev >= LPFC_SLI_REV4) {
3980 for (i = 0; i < phba->cfg_hdw_queue; i++) {
3981 pring = phba->sli4_hba.hdwq[i].fcp_wq->pring;
3982 lpfc_sli_abort_iocb_ring(phba, pring);
3985 pring = &psli->sli3_ring[LPFC_FCP_RING];
3986 lpfc_sli_abort_iocb_ring(phba, pring);
3991 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
3992 * @phba: Pointer to HBA context object.
3994 * This function flushes all iocbs in the fcp ring and frees all the iocb
3995 * objects in txq and txcmplq. This function will not issue abort iocbs
3996 * for all the iocb commands in txcmplq, they will just be returned with
3997 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3998 * slot has been permanently disabled.
4001 lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba)
4005 struct lpfc_sli *psli = &phba->sli;
4006 struct lpfc_sli_ring *pring;
4008 struct lpfc_iocbq *piocb, *next_iocb;
4010 spin_lock_irq(&phba->hbalock);
4011 /* Indicate the I/O queues are flushed */
4012 phba->hba_flag |= HBA_FCP_IOQ_FLUSH;
4013 spin_unlock_irq(&phba->hbalock);
4015 /* Look on all the FCP Rings for the iotag */
4016 if (phba->sli_rev >= LPFC_SLI_REV4) {
4017 for (i = 0; i < phba->cfg_hdw_queue; i++) {
4018 pring = phba->sli4_hba.hdwq[i].fcp_wq->pring;
4020 spin_lock_irq(&pring->ring_lock);
4021 /* Retrieve everything on txq */
4022 list_splice_init(&pring->txq, &txq);
4023 list_for_each_entry_safe(piocb, next_iocb,
4024 &pring->txcmplq, list)
4025 piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
4026 /* Retrieve everything on the txcmplq */
4027 list_splice_init(&pring->txcmplq, &txcmplq);
4029 pring->txcmplq_cnt = 0;
4030 spin_unlock_irq(&pring->ring_lock);
4033 lpfc_sli_cancel_iocbs(phba, &txq,
4034 IOSTAT_LOCAL_REJECT,
4036 /* Flush the txcmpq */
4037 lpfc_sli_cancel_iocbs(phba, &txcmplq,
4038 IOSTAT_LOCAL_REJECT,
4042 pring = &psli->sli3_ring[LPFC_FCP_RING];
4044 spin_lock_irq(&phba->hbalock);
4045 /* Retrieve everything on txq */
4046 list_splice_init(&pring->txq, &txq);
4047 list_for_each_entry_safe(piocb, next_iocb,
4048 &pring->txcmplq, list)
4049 piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
4050 /* Retrieve everything on the txcmplq */
4051 list_splice_init(&pring->txcmplq, &txcmplq);
4053 pring->txcmplq_cnt = 0;
4054 spin_unlock_irq(&phba->hbalock);
4057 lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
4059 /* Flush the txcmpq */
4060 lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
4066 * lpfc_sli_flush_nvme_rings - flush all wqes in the nvme rings
4067 * @phba: Pointer to HBA context object.
4069 * This function flushes all wqes in the nvme rings and frees all resources
4070 * in the txcmplq. This function does not issue abort wqes for the IO
4071 * commands in txcmplq, they will just be returned with
4072 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
4073 * slot has been permanently disabled.
4076 lpfc_sli_flush_nvme_rings(struct lpfc_hba *phba)
4079 struct lpfc_sli_ring *pring;
4081 struct lpfc_iocbq *piocb, *next_iocb;
4083 if ((phba->sli_rev < LPFC_SLI_REV4) ||
4084 !(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME))
4087 /* Hint to other driver operations that a flush is in progress. */
4088 spin_lock_irq(&phba->hbalock);
4089 phba->hba_flag |= HBA_NVME_IOQ_FLUSH;
4090 spin_unlock_irq(&phba->hbalock);
4092 /* Cycle through all NVME rings and complete each IO with
4093 * a local driver reason code. This is a flush so no
4094 * abort exchange to FW.
4096 for (i = 0; i < phba->cfg_hdw_queue; i++) {
4097 pring = phba->sli4_hba.hdwq[i].nvme_wq->pring;
4099 spin_lock_irq(&pring->ring_lock);
4100 list_for_each_entry_safe(piocb, next_iocb,
4101 &pring->txcmplq, list)
4102 piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
4103 /* Retrieve everything on the txcmplq */
4104 list_splice_init(&pring->txcmplq, &txcmplq);
4105 pring->txcmplq_cnt = 0;
4106 spin_unlock_irq(&pring->ring_lock);
4108 /* Flush the txcmpq &&&PAE */
4109 lpfc_sli_cancel_iocbs(phba, &txcmplq,
4110 IOSTAT_LOCAL_REJECT,
4116 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
4117 * @phba: Pointer to HBA context object.
4118 * @mask: Bit mask to be checked.
4120 * This function reads the host status register and compares
4121 * with the provided bit mask to check if HBA completed
4122 * the restart. This function will wait in a loop for the
4123 * HBA to complete restart. If the HBA does not restart within
4124 * 15 iterations, the function will reset the HBA again. The
4125 * function returns 1 when HBA fail to restart otherwise returns
4129 lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
4135 /* Read the HBA Host Status Register */
4136 if (lpfc_readl(phba->HSregaddr, &status))
4140 * Check status register every 100ms for 5 retries, then every
4141 * 500ms for 5, then every 2.5 sec for 5, then reset board and
4142 * every 2.5 sec for 4.
4143 * Break our of the loop if errors occurred during init.
4145 while (((status & mask) != mask) &&
4146 !(status & HS_FFERM) &&
4158 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4159 lpfc_sli_brdrestart(phba);
4161 /* Read the HBA Host Status Register */
4162 if (lpfc_readl(phba->HSregaddr, &status)) {
4168 /* Check to see if any errors occurred during init */
4169 if ((status & HS_FFERM) || (i >= 20)) {
4170 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4171 "2751 Adapter failed to restart, "
4172 "status reg x%x, FW Data: A8 x%x AC x%x\n",
4174 readl(phba->MBslimaddr + 0xa8),
4175 readl(phba->MBslimaddr + 0xac));
4176 phba->link_state = LPFC_HBA_ERROR;
4184 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
4185 * @phba: Pointer to HBA context object.
4186 * @mask: Bit mask to be checked.
4188 * This function checks the host status register to check if HBA is
4189 * ready. This function will wait in a loop for the HBA to be ready
4190 * If the HBA is not ready , the function will will reset the HBA PCI
4191 * function again. The function returns 1 when HBA fail to be ready
4192 * otherwise returns zero.
4195 lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
4200 /* Read the HBA Host Status Register */
4201 status = lpfc_sli4_post_status_check(phba);
4204 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4205 lpfc_sli_brdrestart(phba);
4206 status = lpfc_sli4_post_status_check(phba);
4209 /* Check to see if any errors occurred during init */
4211 phba->link_state = LPFC_HBA_ERROR;
4214 phba->sli4_hba.intr_enable = 0;
4220 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
4221 * @phba: Pointer to HBA context object.
4222 * @mask: Bit mask to be checked.
4224 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
4225 * from the API jump table function pointer from the lpfc_hba struct.
4228 lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
4230 return phba->lpfc_sli_brdready(phba, mask);
4233 #define BARRIER_TEST_PATTERN (0xdeadbeef)
4236 * lpfc_reset_barrier - Make HBA ready for HBA reset
4237 * @phba: Pointer to HBA context object.
4239 * This function is called before resetting an HBA. This function is called
4240 * with hbalock held and requests HBA to quiesce DMAs before a reset.
4242 void lpfc_reset_barrier(struct lpfc_hba *phba)
4244 uint32_t __iomem *resp_buf;
4245 uint32_t __iomem *mbox_buf;
4246 volatile uint32_t mbox;
4247 uint32_t hc_copy, ha_copy, resp_data;
4251 lockdep_assert_held(&phba->hbalock);
4253 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
4254 if (hdrtype != 0x80 ||
4255 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
4256 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
4260 * Tell the other part of the chip to suspend temporarily all
4263 resp_buf = phba->MBslimaddr;
4265 /* Disable the error attention */
4266 if (lpfc_readl(phba->HCregaddr, &hc_copy))
4268 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
4269 readl(phba->HCregaddr); /* flush */
4270 phba->link_flag |= LS_IGNORE_ERATT;
4272 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4274 if (ha_copy & HA_ERATT) {
4275 /* Clear Chip error bit */
4276 writel(HA_ERATT, phba->HAregaddr);
4277 phba->pport->stopped = 1;
4281 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
4282 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
4284 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
4285 mbox_buf = phba->MBslimaddr;
4286 writel(mbox, mbox_buf);
4288 for (i = 0; i < 50; i++) {
4289 if (lpfc_readl((resp_buf + 1), &resp_data))
4291 if (resp_data != ~(BARRIER_TEST_PATTERN))
4297 if (lpfc_readl((resp_buf + 1), &resp_data))
4299 if (resp_data != ~(BARRIER_TEST_PATTERN)) {
4300 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
4301 phba->pport->stopped)
4307 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
4309 for (i = 0; i < 500; i++) {
4310 if (lpfc_readl(resp_buf, &resp_data))
4312 if (resp_data != mbox)
4321 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4323 if (!(ha_copy & HA_ERATT))
4329 if (readl(phba->HAregaddr) & HA_ERATT) {
4330 writel(HA_ERATT, phba->HAregaddr);
4331 phba->pport->stopped = 1;
4335 phba->link_flag &= ~LS_IGNORE_ERATT;
4336 writel(hc_copy, phba->HCregaddr);
4337 readl(phba->HCregaddr); /* flush */
4341 * lpfc_sli_brdkill - Issue a kill_board mailbox command
4342 * @phba: Pointer to HBA context object.
4344 * This function issues a kill_board mailbox command and waits for
4345 * the error attention interrupt. This function is called for stopping
4346 * the firmware processing. The caller is not required to hold any
4347 * locks. This function calls lpfc_hba_down_post function to free
4348 * any pending commands after the kill. The function will return 1 when it
4349 * fails to kill the board else will return 0.
4352 lpfc_sli_brdkill(struct lpfc_hba *phba)
4354 struct lpfc_sli *psli;
4364 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4365 "0329 Kill HBA Data: x%x x%x\n",
4366 phba->pport->port_state, psli->sli_flag);
4368 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4372 /* Disable the error attention */
4373 spin_lock_irq(&phba->hbalock);
4374 if (lpfc_readl(phba->HCregaddr, &status)) {
4375 spin_unlock_irq(&phba->hbalock);
4376 mempool_free(pmb, phba->mbox_mem_pool);
4379 status &= ~HC_ERINT_ENA;
4380 writel(status, phba->HCregaddr);
4381 readl(phba->HCregaddr); /* flush */
4382 phba->link_flag |= LS_IGNORE_ERATT;
4383 spin_unlock_irq(&phba->hbalock);
4385 lpfc_kill_board(phba, pmb);
4386 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4387 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4389 if (retval != MBX_SUCCESS) {
4390 if (retval != MBX_BUSY)
4391 mempool_free(pmb, phba->mbox_mem_pool);
4392 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4393 "2752 KILL_BOARD command failed retval %d\n",
4395 spin_lock_irq(&phba->hbalock);
4396 phba->link_flag &= ~LS_IGNORE_ERATT;
4397 spin_unlock_irq(&phba->hbalock);
4401 spin_lock_irq(&phba->hbalock);
4402 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
4403 spin_unlock_irq(&phba->hbalock);
4405 mempool_free(pmb, phba->mbox_mem_pool);
4407 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
4408 * attention every 100ms for 3 seconds. If we don't get ERATT after
4409 * 3 seconds we still set HBA_ERROR state because the status of the
4410 * board is now undefined.
4412 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4414 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
4416 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4420 del_timer_sync(&psli->mbox_tmo);
4421 if (ha_copy & HA_ERATT) {
4422 writel(HA_ERATT, phba->HAregaddr);
4423 phba->pport->stopped = 1;
4425 spin_lock_irq(&phba->hbalock);
4426 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4427 psli->mbox_active = NULL;
4428 phba->link_flag &= ~LS_IGNORE_ERATT;
4429 spin_unlock_irq(&phba->hbalock);
4431 lpfc_hba_down_post(phba);
4432 phba->link_state = LPFC_HBA_ERROR;
4434 return ha_copy & HA_ERATT ? 0 : 1;
4438 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
4439 * @phba: Pointer to HBA context object.
4441 * This function resets the HBA by writing HC_INITFF to the control
4442 * register. After the HBA resets, this function resets all the iocb ring
4443 * indices. This function disables PCI layer parity checking during
4445 * This function returns 0 always.
4446 * The caller is not required to hold any locks.
4449 lpfc_sli_brdreset(struct lpfc_hba *phba)
4451 struct lpfc_sli *psli;
4452 struct lpfc_sli_ring *pring;
4459 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4460 "0325 Reset HBA Data: x%x x%x\n",
4461 (phba->pport) ? phba->pport->port_state : 0,
4464 /* perform board reset */
4465 phba->fc_eventTag = 0;
4466 phba->link_events = 0;
4468 phba->pport->fc_myDID = 0;
4469 phba->pport->fc_prevDID = 0;
4472 /* Turn off parity checking and serr during the physical reset */
4473 if (pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value))
4476 pci_write_config_word(phba->pcidev, PCI_COMMAND,
4478 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4480 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
4482 /* Now toggle INITFF bit in the Host Control Register */
4483 writel(HC_INITFF, phba->HCregaddr);
4485 readl(phba->HCregaddr); /* flush */
4486 writel(0, phba->HCregaddr);
4487 readl(phba->HCregaddr); /* flush */
4489 /* Restore PCI cmd register */
4490 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
4492 /* Initialize relevant SLI info */
4493 for (i = 0; i < psli->num_rings; i++) {
4494 pring = &psli->sli3_ring[i];
4496 pring->sli.sli3.rspidx = 0;
4497 pring->sli.sli3.next_cmdidx = 0;
4498 pring->sli.sli3.local_getidx = 0;
4499 pring->sli.sli3.cmdidx = 0;
4500 pring->missbufcnt = 0;
4503 phba->link_state = LPFC_WARM_START;
4508 * lpfc_sli4_brdreset - Reset a sli-4 HBA
4509 * @phba: Pointer to HBA context object.
4511 * This function resets a SLI4 HBA. This function disables PCI layer parity
4512 * checking during resets the device. The caller is not required to hold
4515 * This function returns 0 on success else returns negative error code.
4518 lpfc_sli4_brdreset(struct lpfc_hba *phba)
4520 struct lpfc_sli *psli = &phba->sli;
4525 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4526 "0295 Reset HBA Data: x%x x%x x%x\n",
4527 phba->pport->port_state, psli->sli_flag,
4530 /* perform board reset */
4531 phba->fc_eventTag = 0;
4532 phba->link_events = 0;
4533 phba->pport->fc_myDID = 0;
4534 phba->pport->fc_prevDID = 0;
4536 spin_lock_irq(&phba->hbalock);
4537 psli->sli_flag &= ~(LPFC_PROCESS_LA);
4538 phba->fcf.fcf_flag = 0;
4539 spin_unlock_irq(&phba->hbalock);
4541 /* SLI4 INTF 2: if FW dump is being taken skip INIT_PORT */
4542 if (phba->hba_flag & HBA_FW_DUMP_OP) {
4543 phba->hba_flag &= ~HBA_FW_DUMP_OP;
4547 /* Now physically reset the device */
4548 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4549 "0389 Performing PCI function reset!\n");
4551 /* Turn off parity checking and serr during the physical reset */
4552 if (pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value)) {
4553 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4554 "3205 PCI read Config failed\n");
4558 pci_write_config_word(phba->pcidev, PCI_COMMAND, (cfg_value &
4559 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4561 /* Perform FCoE PCI function reset before freeing queue memory */
4562 rc = lpfc_pci_function_reset(phba);
4564 /* Restore PCI cmd register */
4565 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
4571 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
4572 * @phba: Pointer to HBA context object.
4574 * This function is called in the SLI initialization code path to
4575 * restart the HBA. The caller is not required to hold any lock.
4576 * This function writes MBX_RESTART mailbox command to the SLIM and
4577 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
4578 * function to free any pending commands. The function enables
4579 * POST only during the first initialization. The function returns zero.
4580 * The function does not guarantee completion of MBX_RESTART mailbox
4581 * command before the return of this function.
4584 lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
4587 struct lpfc_sli *psli;
4588 volatile uint32_t word0;
4589 void __iomem *to_slim;
4590 uint32_t hba_aer_enabled;
4592 spin_lock_irq(&phba->hbalock);
4594 /* Take PCIe device Advanced Error Reporting (AER) state */
4595 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4600 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4601 "0337 Restart HBA Data: x%x x%x\n",
4602 (phba->pport) ? phba->pport->port_state : 0,
4606 mb = (MAILBOX_t *) &word0;
4607 mb->mbxCommand = MBX_RESTART;
4610 lpfc_reset_barrier(phba);
4612 to_slim = phba->MBslimaddr;
4613 writel(*(uint32_t *) mb, to_slim);
4614 readl(to_slim); /* flush */
4616 /* Only skip post after fc_ffinit is completed */
4617 if (phba->pport && phba->pport->port_state)
4618 word0 = 1; /* This is really setting up word1 */
4620 word0 = 0; /* This is really setting up word1 */
4621 to_slim = phba->MBslimaddr + sizeof (uint32_t);
4622 writel(*(uint32_t *) mb, to_slim);
4623 readl(to_slim); /* flush */
4625 lpfc_sli_brdreset(phba);
4627 phba->pport->stopped = 0;
4628 phba->link_state = LPFC_INIT_START;
4630 spin_unlock_irq(&phba->hbalock);
4632 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4633 psli->stats_start = ktime_get_seconds();
4635 /* Give the INITFF and Post time to settle. */
4638 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4639 if (hba_aer_enabled)
4640 pci_disable_pcie_error_reporting(phba->pcidev);
4642 lpfc_hba_down_post(phba);
4648 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
4649 * @phba: Pointer to HBA context object.
4651 * This function is called in the SLI initialization code path to restart
4652 * a SLI4 HBA. The caller is not required to hold any lock.
4653 * At the end of the function, it calls lpfc_hba_down_post function to
4654 * free any pending commands.
4657 lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
4659 struct lpfc_sli *psli = &phba->sli;
4660 uint32_t hba_aer_enabled;
4664 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4665 "0296 Restart HBA Data: x%x x%x\n",
4666 phba->pport->port_state, psli->sli_flag);
4668 /* Take PCIe device Advanced Error Reporting (AER) state */
4669 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4671 rc = lpfc_sli4_brdreset(phba);
4675 spin_lock_irq(&phba->hbalock);
4676 phba->pport->stopped = 0;
4677 phba->link_state = LPFC_INIT_START;
4679 spin_unlock_irq(&phba->hbalock);
4681 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4682 psli->stats_start = ktime_get_seconds();
4684 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4685 if (hba_aer_enabled)
4686 pci_disable_pcie_error_reporting(phba->pcidev);
4689 phba->link_state = LPFC_HBA_ERROR;
4690 lpfc_hba_down_post(phba);
4691 lpfc_sli4_queue_destroy(phba);
4697 * lpfc_sli_brdrestart - Wrapper func for restarting hba
4698 * @phba: Pointer to HBA context object.
4700 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
4701 * API jump table function pointer from the lpfc_hba struct.
4704 lpfc_sli_brdrestart(struct lpfc_hba *phba)
4706 return phba->lpfc_sli_brdrestart(phba);
4710 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
4711 * @phba: Pointer to HBA context object.
4713 * This function is called after a HBA restart to wait for successful
4714 * restart of the HBA. Successful restart of the HBA is indicated by
4715 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
4716 * iteration, the function will restart the HBA again. The function returns
4717 * zero if HBA successfully restarted else returns negative error code.
4720 lpfc_sli_chipset_init(struct lpfc_hba *phba)
4722 uint32_t status, i = 0;
4724 /* Read the HBA Host Status Register */
4725 if (lpfc_readl(phba->HSregaddr, &status))
4728 /* Check status register to see what current state is */
4730 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
4732 /* Check every 10ms for 10 retries, then every 100ms for 90
4733 * retries, then every 1 sec for 50 retires for a total of
4734 * ~60 seconds before reset the board again and check every
4735 * 1 sec for 50 retries. The up to 60 seconds before the
4736 * board ready is required by the Falcon FIPS zeroization
4737 * complete, and any reset the board in between shall cause
4738 * restart of zeroization, further delay the board ready.
4741 /* Adapter failed to init, timeout, status reg
4743 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4744 "0436 Adapter failed to init, "
4745 "timeout, status reg x%x, "
4746 "FW Data: A8 x%x AC x%x\n", status,
4747 readl(phba->MBslimaddr + 0xa8),
4748 readl(phba->MBslimaddr + 0xac));
4749 phba->link_state = LPFC_HBA_ERROR;
4753 /* Check to see if any errors occurred during init */
4754 if (status & HS_FFERM) {
4755 /* ERROR: During chipset initialization */
4756 /* Adapter failed to init, chipset, status reg
4758 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4759 "0437 Adapter failed to init, "
4760 "chipset, status reg x%x, "
4761 "FW Data: A8 x%x AC x%x\n", status,
4762 readl(phba->MBslimaddr + 0xa8),
4763 readl(phba->MBslimaddr + 0xac));
4764 phba->link_state = LPFC_HBA_ERROR;
4777 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4778 lpfc_sli_brdrestart(phba);
4780 /* Read the HBA Host Status Register */
4781 if (lpfc_readl(phba->HSregaddr, &status))
4785 /* Check to see if any errors occurred during init */
4786 if (status & HS_FFERM) {
4787 /* ERROR: During chipset initialization */
4788 /* Adapter failed to init, chipset, status reg <status> */
4789 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4790 "0438 Adapter failed to init, chipset, "
4792 "FW Data: A8 x%x AC x%x\n", status,
4793 readl(phba->MBslimaddr + 0xa8),
4794 readl(phba->MBslimaddr + 0xac));
4795 phba->link_state = LPFC_HBA_ERROR;
4799 /* Clear all interrupt enable conditions */
4800 writel(0, phba->HCregaddr);
4801 readl(phba->HCregaddr); /* flush */
4803 /* setup host attn register */
4804 writel(0xffffffff, phba->HAregaddr);
4805 readl(phba->HAregaddr); /* flush */
4810 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
4812 * This function calculates and returns the number of HBQs required to be
4816 lpfc_sli_hbq_count(void)
4818 return ARRAY_SIZE(lpfc_hbq_defs);
4822 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
4824 * This function adds the number of hbq entries in every HBQ to get
4825 * the total number of hbq entries required for the HBA and returns
4829 lpfc_sli_hbq_entry_count(void)
4831 int hbq_count = lpfc_sli_hbq_count();
4835 for (i = 0; i < hbq_count; ++i)
4836 count += lpfc_hbq_defs[i]->entry_count;
4841 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
4843 * This function calculates amount of memory required for all hbq entries
4844 * to be configured and returns the total memory required.
4847 lpfc_sli_hbq_size(void)
4849 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
4853 * lpfc_sli_hbq_setup - configure and initialize HBQs
4854 * @phba: Pointer to HBA context object.
4856 * This function is called during the SLI initialization to configure
4857 * all the HBQs and post buffers to the HBQ. The caller is not
4858 * required to hold any locks. This function will return zero if successful
4859 * else it will return negative error code.
4862 lpfc_sli_hbq_setup(struct lpfc_hba *phba)
4864 int hbq_count = lpfc_sli_hbq_count();
4868 uint32_t hbq_entry_index;
4870 /* Get a Mailbox buffer to setup mailbox
4871 * commands for HBA initialization
4873 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4880 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
4881 phba->link_state = LPFC_INIT_MBX_CMDS;
4882 phba->hbq_in_use = 1;
4884 hbq_entry_index = 0;
4885 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
4886 phba->hbqs[hbqno].next_hbqPutIdx = 0;
4887 phba->hbqs[hbqno].hbqPutIdx = 0;
4888 phba->hbqs[hbqno].local_hbqGetIdx = 0;
4889 phba->hbqs[hbqno].entry_count =
4890 lpfc_hbq_defs[hbqno]->entry_count;
4891 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
4892 hbq_entry_index, pmb);
4893 hbq_entry_index += phba->hbqs[hbqno].entry_count;
4895 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
4896 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
4897 mbxStatus <status>, ring <num> */
4899 lpfc_printf_log(phba, KERN_ERR,
4900 LOG_SLI | LOG_VPORT,
4901 "1805 Adapter failed to init. "
4902 "Data: x%x x%x x%x\n",
4904 pmbox->mbxStatus, hbqno);
4906 phba->link_state = LPFC_HBA_ERROR;
4907 mempool_free(pmb, phba->mbox_mem_pool);
4911 phba->hbq_count = hbq_count;
4913 mempool_free(pmb, phba->mbox_mem_pool);
4915 /* Initially populate or replenish the HBQs */
4916 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
4917 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
4922 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
4923 * @phba: Pointer to HBA context object.
4925 * This function is called during the SLI initialization to configure
4926 * all the HBQs and post buffers to the HBQ. The caller is not
4927 * required to hold any locks. This function will return zero if successful
4928 * else it will return negative error code.
4931 lpfc_sli4_rb_setup(struct lpfc_hba *phba)
4933 phba->hbq_in_use = 1;
4934 phba->hbqs[LPFC_ELS_HBQ].entry_count =
4935 lpfc_hbq_defs[LPFC_ELS_HBQ]->entry_count;
4936 phba->hbq_count = 1;
4937 lpfc_sli_hbqbuf_init_hbqs(phba, LPFC_ELS_HBQ);
4938 /* Initially populate or replenish the HBQs */
4943 * lpfc_sli_config_port - Issue config port mailbox command
4944 * @phba: Pointer to HBA context object.
4945 * @sli_mode: sli mode - 2/3
4947 * This function is called by the sli initialization code path
4948 * to issue config_port mailbox command. This function restarts the
4949 * HBA firmware and issues a config_port mailbox command to configure
4950 * the SLI interface in the sli mode specified by sli_mode
4951 * variable. The caller is not required to hold any locks.
4952 * The function returns 0 if successful, else returns negative error
4956 lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
4959 uint32_t resetcount = 0, rc = 0, done = 0;
4961 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4963 phba->link_state = LPFC_HBA_ERROR;
4967 phba->sli_rev = sli_mode;
4968 while (resetcount < 2 && !done) {
4969 spin_lock_irq(&phba->hbalock);
4970 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
4971 spin_unlock_irq(&phba->hbalock);
4972 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4973 lpfc_sli_brdrestart(phba);
4974 rc = lpfc_sli_chipset_init(phba);
4978 spin_lock_irq(&phba->hbalock);
4979 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4980 spin_unlock_irq(&phba->hbalock);
4983 /* Call pre CONFIG_PORT mailbox command initialization. A
4984 * value of 0 means the call was successful. Any other
4985 * nonzero value is a failure, but if ERESTART is returned,
4986 * the driver may reset the HBA and try again.
4988 rc = lpfc_config_port_prep(phba);
4989 if (rc == -ERESTART) {
4990 phba->link_state = LPFC_LINK_UNKNOWN;
4995 phba->link_state = LPFC_INIT_MBX_CMDS;
4996 lpfc_config_port(phba, pmb);
4997 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
4998 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
4999 LPFC_SLI3_HBQ_ENABLED |
5000 LPFC_SLI3_CRP_ENABLED |
5001 LPFC_SLI3_DSS_ENABLED);
5002 if (rc != MBX_SUCCESS) {
5003 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5004 "0442 Adapter failed to init, mbxCmd x%x "
5005 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
5006 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
5007 spin_lock_irq(&phba->hbalock);
5008 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
5009 spin_unlock_irq(&phba->hbalock);
5012 /* Allow asynchronous mailbox command to go through */
5013 spin_lock_irq(&phba->hbalock);
5014 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
5015 spin_unlock_irq(&phba->hbalock);
5018 if ((pmb->u.mb.un.varCfgPort.casabt == 1) &&
5019 (pmb->u.mb.un.varCfgPort.gasabt == 0))
5020 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5021 "3110 Port did not grant ASABT\n");
5026 goto do_prep_failed;
5028 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
5029 if (!pmb->u.mb.un.varCfgPort.cMA) {
5031 goto do_prep_failed;
5033 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
5034 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
5035 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
5036 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
5037 phba->max_vpi : phba->max_vports;
5041 phba->fips_level = 0;
5042 phba->fips_spec_rev = 0;
5043 if (pmb->u.mb.un.varCfgPort.gdss) {
5044 phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
5045 phba->fips_level = pmb->u.mb.un.varCfgPort.fips_level;
5046 phba->fips_spec_rev = pmb->u.mb.un.varCfgPort.fips_rev;
5047 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5048 "2850 Security Crypto Active. FIPS x%d "
5050 phba->fips_level, phba->fips_spec_rev);
5052 if (pmb->u.mb.un.varCfgPort.sec_err) {
5053 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5054 "2856 Config Port Security Crypto "
5056 pmb->u.mb.un.varCfgPort.sec_err);
5058 if (pmb->u.mb.un.varCfgPort.gerbm)
5059 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
5060 if (pmb->u.mb.un.varCfgPort.gcrp)
5061 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
5063 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
5064 phba->port_gp = phba->mbox->us.s3_pgp.port;
5066 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
5067 if (pmb->u.mb.un.varCfgPort.gbg == 0) {
5068 phba->cfg_enable_bg = 0;
5069 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
5070 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5071 "0443 Adapter did not grant "
5076 phba->hbq_get = NULL;
5077 phba->port_gp = phba->mbox->us.s2.port;
5081 mempool_free(pmb, phba->mbox_mem_pool);
5087 * lpfc_sli_hba_setup - SLI initialization function
5088 * @phba: Pointer to HBA context object.
5090 * This function is the main SLI initialization function. This function
5091 * is called by the HBA initialization code, HBA reset code and HBA
5092 * error attention handler code. Caller is not required to hold any
5093 * locks. This function issues config_port mailbox command to configure
5094 * the SLI, setup iocb rings and HBQ rings. In the end the function
5095 * calls the config_port_post function to issue init_link mailbox
5096 * command and to start the discovery. The function will return zero
5097 * if successful, else it will return negative error code.
5100 lpfc_sli_hba_setup(struct lpfc_hba *phba)
5106 switch (phba->cfg_sli_mode) {
5108 if (phba->cfg_enable_npiv) {
5109 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
5110 "1824 NPIV enabled: Override sli_mode "
5111 "parameter (%d) to auto (0).\n",
5112 phba->cfg_sli_mode);
5121 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
5122 "1819 Unrecognized sli_mode parameter: %d.\n",
5123 phba->cfg_sli_mode);
5127 phba->fcp_embed_io = 0; /* SLI4 FC support only */
5129 rc = lpfc_sli_config_port(phba, mode);
5131 if (rc && phba->cfg_sli_mode == 3)
5132 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
5133 "1820 Unable to select SLI-3. "
5134 "Not supported by adapter.\n");
5135 if (rc && mode != 2)
5136 rc = lpfc_sli_config_port(phba, 2);
5137 else if (rc && mode == 2)
5138 rc = lpfc_sli_config_port(phba, 3);
5140 goto lpfc_sli_hba_setup_error;
5142 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
5143 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
5144 rc = pci_enable_pcie_error_reporting(phba->pcidev);
5146 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5147 "2709 This device supports "
5148 "Advanced Error Reporting (AER)\n");
5149 spin_lock_irq(&phba->hbalock);
5150 phba->hba_flag |= HBA_AER_ENABLED;
5151 spin_unlock_irq(&phba->hbalock);
5153 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5154 "2708 This device does not support "
5155 "Advanced Error Reporting (AER): %d\n",
5157 phba->cfg_aer_support = 0;
5161 if (phba->sli_rev == 3) {
5162 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
5163 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
5165 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
5166 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
5167 phba->sli3_options = 0;
5170 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5171 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
5172 phba->sli_rev, phba->max_vpi);
5173 rc = lpfc_sli_ring_map(phba);
5176 goto lpfc_sli_hba_setup_error;
5178 /* Initialize VPIs. */
5179 if (phba->sli_rev == LPFC_SLI_REV3) {
5181 * The VPI bitmask and physical ID array are allocated
5182 * and initialized once only - at driver load. A port
5183 * reset doesn't need to reinitialize this memory.
5185 if ((phba->vpi_bmask == NULL) && (phba->vpi_ids == NULL)) {
5186 longs = (phba->max_vpi + BITS_PER_LONG) / BITS_PER_LONG;
5187 phba->vpi_bmask = kcalloc(longs,
5188 sizeof(unsigned long),
5190 if (!phba->vpi_bmask) {
5192 goto lpfc_sli_hba_setup_error;
5195 phba->vpi_ids = kcalloc(phba->max_vpi + 1,
5198 if (!phba->vpi_ids) {
5199 kfree(phba->vpi_bmask);
5201 goto lpfc_sli_hba_setup_error;
5203 for (i = 0; i < phba->max_vpi; i++)
5204 phba->vpi_ids[i] = i;
5209 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
5210 rc = lpfc_sli_hbq_setup(phba);
5212 goto lpfc_sli_hba_setup_error;
5214 spin_lock_irq(&phba->hbalock);
5215 phba->sli.sli_flag |= LPFC_PROCESS_LA;
5216 spin_unlock_irq(&phba->hbalock);
5218 rc = lpfc_config_port_post(phba);
5220 goto lpfc_sli_hba_setup_error;
5224 lpfc_sli_hba_setup_error:
5225 phba->link_state = LPFC_HBA_ERROR;
5226 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5227 "0445 Firmware initialization failed\n");
5232 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
5233 * @phba: Pointer to HBA context object.
5234 * @mboxq: mailbox pointer.
5235 * This function issue a dump mailbox command to read config region
5236 * 23 and parse the records in the region and populate driver
5240 lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba)
5242 LPFC_MBOXQ_t *mboxq;
5243 struct lpfc_dmabuf *mp;
5244 struct lpfc_mqe *mqe;
5245 uint32_t data_length;
5248 /* Program the default value of vlan_id and fc_map */
5249 phba->valid_vlan = 0;
5250 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5251 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5252 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5254 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5258 mqe = &mboxq->u.mqe;
5259 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq)) {
5261 goto out_free_mboxq;
5264 mp = (struct lpfc_dmabuf *)mboxq->ctx_buf;
5265 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5267 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5268 "(%d):2571 Mailbox cmd x%x Status x%x "
5269 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
5270 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
5271 "CQ: x%x x%x x%x x%x\n",
5272 mboxq->vport ? mboxq->vport->vpi : 0,
5273 bf_get(lpfc_mqe_command, mqe),
5274 bf_get(lpfc_mqe_status, mqe),
5275 mqe->un.mb_words[0], mqe->un.mb_words[1],
5276 mqe->un.mb_words[2], mqe->un.mb_words[3],
5277 mqe->un.mb_words[4], mqe->un.mb_words[5],
5278 mqe->un.mb_words[6], mqe->un.mb_words[7],
5279 mqe->un.mb_words[8], mqe->un.mb_words[9],
5280 mqe->un.mb_words[10], mqe->un.mb_words[11],
5281 mqe->un.mb_words[12], mqe->un.mb_words[13],
5282 mqe->un.mb_words[14], mqe->un.mb_words[15],
5283 mqe->un.mb_words[16], mqe->un.mb_words[50],
5285 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
5286 mboxq->mcqe.trailer);
5289 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5292 goto out_free_mboxq;
5294 data_length = mqe->un.mb_words[5];
5295 if (data_length > DMP_RGN23_SIZE) {
5296 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5299 goto out_free_mboxq;
5302 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
5303 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5308 mempool_free(mboxq, phba->mbox_mem_pool);
5313 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
5314 * @phba: pointer to lpfc hba data structure.
5315 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
5316 * @vpd: pointer to the memory to hold resulting port vpd data.
5317 * @vpd_size: On input, the number of bytes allocated to @vpd.
5318 * On output, the number of data bytes in @vpd.
5320 * This routine executes a READ_REV SLI4 mailbox command. In
5321 * addition, this routine gets the port vpd data.
5325 * -ENOMEM - could not allocated memory.
5328 lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
5329 uint8_t *vpd, uint32_t *vpd_size)
5333 struct lpfc_dmabuf *dmabuf;
5334 struct lpfc_mqe *mqe;
5336 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5341 * Get a DMA buffer for the vpd data resulting from the READ_REV
5344 dma_size = *vpd_size;
5345 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, dma_size,
5346 &dmabuf->phys, GFP_KERNEL);
5347 if (!dmabuf->virt) {
5353 * The SLI4 implementation of READ_REV conflicts at word1,
5354 * bits 31:16 and SLI4 adds vpd functionality not present
5355 * in SLI3. This code corrects the conflicts.
5357 lpfc_read_rev(phba, mboxq);
5358 mqe = &mboxq->u.mqe;
5359 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
5360 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
5361 mqe->un.read_rev.word1 &= 0x0000FFFF;
5362 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
5363 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
5365 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5367 dma_free_coherent(&phba->pcidev->dev, dma_size,
5368 dmabuf->virt, dmabuf->phys);
5374 * The available vpd length cannot be bigger than the
5375 * DMA buffer passed to the port. Catch the less than
5376 * case and update the caller's size.
5378 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
5379 *vpd_size = mqe->un.read_rev.avail_vpd_len;
5381 memcpy(vpd, dmabuf->virt, *vpd_size);
5383 dma_free_coherent(&phba->pcidev->dev, dma_size,
5384 dmabuf->virt, dmabuf->phys);
5390 * lpfc_sli4_get_ctl_attr - Retrieve SLI4 device controller attributes
5391 * @phba: pointer to lpfc hba data structure.
5393 * This routine retrieves SLI4 device physical port name this PCI function
5398 * otherwise - failed to retrieve controller attributes
5401 lpfc_sli4_get_ctl_attr(struct lpfc_hba *phba)
5403 LPFC_MBOXQ_t *mboxq;
5404 struct lpfc_mbx_get_cntl_attributes *mbx_cntl_attr;
5405 struct lpfc_controller_attribute *cntl_attr;
5406 void *virtaddr = NULL;
5407 uint32_t alloclen, reqlen;
5408 uint32_t shdr_status, shdr_add_status;
5409 union lpfc_sli4_cfg_shdr *shdr;
5412 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5416 /* Send COMMON_GET_CNTL_ATTRIBUTES mbox cmd */
5417 reqlen = sizeof(struct lpfc_mbx_get_cntl_attributes);
5418 alloclen = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5419 LPFC_MBOX_OPCODE_GET_CNTL_ATTRIBUTES, reqlen,
5420 LPFC_SLI4_MBX_NEMBED);
5422 if (alloclen < reqlen) {
5423 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5424 "3084 Allocated DMA memory size (%d) is "
5425 "less than the requested DMA memory size "
5426 "(%d)\n", alloclen, reqlen);
5428 goto out_free_mboxq;
5430 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5431 virtaddr = mboxq->sge_array->addr[0];
5432 mbx_cntl_attr = (struct lpfc_mbx_get_cntl_attributes *)virtaddr;
5433 shdr = &mbx_cntl_attr->cfg_shdr;
5434 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5435 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5436 if (shdr_status || shdr_add_status || rc) {
5437 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5438 "3085 Mailbox x%x (x%x/x%x) failed, "
5439 "rc:x%x, status:x%x, add_status:x%x\n",
5440 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5441 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
5442 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
5443 rc, shdr_status, shdr_add_status);
5445 goto out_free_mboxq;
5448 cntl_attr = &mbx_cntl_attr->cntl_attr;
5449 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
5450 phba->sli4_hba.lnk_info.lnk_tp =
5451 bf_get(lpfc_cntl_attr_lnk_type, cntl_attr);
5452 phba->sli4_hba.lnk_info.lnk_no =
5453 bf_get(lpfc_cntl_attr_lnk_numb, cntl_attr);
5455 memset(phba->BIOSVersion, 0, sizeof(phba->BIOSVersion));
5456 strlcat(phba->BIOSVersion, (char *)cntl_attr->bios_ver_str,
5457 sizeof(phba->BIOSVersion));
5459 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5460 "3086 lnk_type:%d, lnk_numb:%d, bios_ver:%s\n",
5461 phba->sli4_hba.lnk_info.lnk_tp,
5462 phba->sli4_hba.lnk_info.lnk_no,
5465 if (rc != MBX_TIMEOUT) {
5466 if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
5467 lpfc_sli4_mbox_cmd_free(phba, mboxq);
5469 mempool_free(mboxq, phba->mbox_mem_pool);
5475 * lpfc_sli4_retrieve_pport_name - Retrieve SLI4 device physical port name
5476 * @phba: pointer to lpfc hba data structure.
5478 * This routine retrieves SLI4 device physical port name this PCI function
5483 * otherwise - failed to retrieve physical port name
5486 lpfc_sli4_retrieve_pport_name(struct lpfc_hba *phba)
5488 LPFC_MBOXQ_t *mboxq;
5489 struct lpfc_mbx_get_port_name *get_port_name;
5490 uint32_t shdr_status, shdr_add_status;
5491 union lpfc_sli4_cfg_shdr *shdr;
5492 char cport_name = 0;
5495 /* We assume nothing at this point */
5496 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
5497 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_NON;
5499 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5502 /* obtain link type and link number via READ_CONFIG */
5503 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
5504 lpfc_sli4_read_config(phba);
5505 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL)
5506 goto retrieve_ppname;
5508 /* obtain link type and link number via COMMON_GET_CNTL_ATTRIBUTES */
5509 rc = lpfc_sli4_get_ctl_attr(phba);
5511 goto out_free_mboxq;
5514 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5515 LPFC_MBOX_OPCODE_GET_PORT_NAME,
5516 sizeof(struct lpfc_mbx_get_port_name) -
5517 sizeof(struct lpfc_sli4_cfg_mhdr),
5518 LPFC_SLI4_MBX_EMBED);
5519 get_port_name = &mboxq->u.mqe.un.get_port_name;
5520 shdr = (union lpfc_sli4_cfg_shdr *)&get_port_name->header.cfg_shdr;
5521 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_OPCODE_VERSION_1);
5522 bf_set(lpfc_mbx_get_port_name_lnk_type, &get_port_name->u.request,
5523 phba->sli4_hba.lnk_info.lnk_tp);
5524 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5525 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5526 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5527 if (shdr_status || shdr_add_status || rc) {
5528 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5529 "3087 Mailbox x%x (x%x/x%x) failed: "
5530 "rc:x%x, status:x%x, add_status:x%x\n",
5531 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5532 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
5533 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
5534 rc, shdr_status, shdr_add_status);
5536 goto out_free_mboxq;
5538 switch (phba->sli4_hba.lnk_info.lnk_no) {
5539 case LPFC_LINK_NUMBER_0:
5540 cport_name = bf_get(lpfc_mbx_get_port_name_name0,
5541 &get_port_name->u.response);
5542 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5544 case LPFC_LINK_NUMBER_1:
5545 cport_name = bf_get(lpfc_mbx_get_port_name_name1,
5546 &get_port_name->u.response);
5547 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5549 case LPFC_LINK_NUMBER_2:
5550 cport_name = bf_get(lpfc_mbx_get_port_name_name2,
5551 &get_port_name->u.response);
5552 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5554 case LPFC_LINK_NUMBER_3:
5555 cport_name = bf_get(lpfc_mbx_get_port_name_name3,
5556 &get_port_name->u.response);
5557 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5563 if (phba->sli4_hba.pport_name_sta == LPFC_SLI4_PPNAME_GET) {
5564 phba->Port[0] = cport_name;
5565 phba->Port[1] = '\0';
5566 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5567 "3091 SLI get port name: %s\n", phba->Port);
5571 if (rc != MBX_TIMEOUT) {
5572 if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
5573 lpfc_sli4_mbox_cmd_free(phba, mboxq);
5575 mempool_free(mboxq, phba->mbox_mem_pool);
5581 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
5582 * @phba: pointer to lpfc hba data structure.
5584 * This routine is called to explicitly arm the SLI4 device's completion and
5588 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
5591 struct lpfc_sli4_hba *sli4_hba = &phba->sli4_hba;
5592 struct lpfc_sli4_hdw_queue *qp;
5593 struct lpfc_queue *eq;
5595 sli4_hba->sli4_write_cq_db(phba, sli4_hba->mbx_cq, 0, LPFC_QUEUE_REARM);
5596 sli4_hba->sli4_write_cq_db(phba, sli4_hba->els_cq, 0, LPFC_QUEUE_REARM);
5597 if (sli4_hba->nvmels_cq)
5598 sli4_hba->sli4_write_cq_db(phba, sli4_hba->nvmels_cq, 0,
5601 if (sli4_hba->hdwq) {
5602 /* Loop thru all Hardware Queues */
5603 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
5604 qp = &sli4_hba->hdwq[qidx];
5605 /* ARM the corresponding CQ */
5606 sli4_hba->sli4_write_cq_db(phba, qp->fcp_cq, 0,
5608 sli4_hba->sli4_write_cq_db(phba, qp->nvme_cq, 0,
5612 /* Loop thru all IRQ vectors */
5613 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
5614 eq = sli4_hba->hba_eq_hdl[qidx].eq;
5615 /* ARM the corresponding EQ */
5616 sli4_hba->sli4_write_eq_db(phba, eq,
5617 0, LPFC_QUEUE_REARM);
5621 if (phba->nvmet_support) {
5622 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) {
5623 sli4_hba->sli4_write_cq_db(phba,
5624 sli4_hba->nvmet_cqset[qidx], 0,
5631 * lpfc_sli4_get_avail_extnt_rsrc - Get available resource extent count.
5632 * @phba: Pointer to HBA context object.
5633 * @type: The resource extent type.
5634 * @extnt_count: buffer to hold port available extent count.
5635 * @extnt_size: buffer to hold element count per extent.
5637 * This function calls the port and retrievs the number of available
5638 * extents and their size for a particular extent type.
5640 * Returns: 0 if successful. Nonzero otherwise.
5643 lpfc_sli4_get_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type,
5644 uint16_t *extnt_count, uint16_t *extnt_size)
5649 struct lpfc_mbx_get_rsrc_extent_info *rsrc_info;
5652 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5656 /* Find out how many extents are available for this resource type */
5657 length = (sizeof(struct lpfc_mbx_get_rsrc_extent_info) -
5658 sizeof(struct lpfc_sli4_cfg_mhdr));
5659 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5660 LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO,
5661 length, LPFC_SLI4_MBX_EMBED);
5663 /* Send an extents count of 0 - the GET doesn't use it. */
5664 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5665 LPFC_SLI4_MBX_EMBED);
5671 if (!phba->sli4_hba.intr_enable)
5672 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5674 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5675 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5682 rsrc_info = &mbox->u.mqe.un.rsrc_extent_info;
5683 if (bf_get(lpfc_mbox_hdr_status,
5684 &rsrc_info->header.cfg_shdr.response)) {
5685 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5686 "2930 Failed to get resource extents "
5687 "Status 0x%x Add'l Status 0x%x\n",
5688 bf_get(lpfc_mbox_hdr_status,
5689 &rsrc_info->header.cfg_shdr.response),
5690 bf_get(lpfc_mbox_hdr_add_status,
5691 &rsrc_info->header.cfg_shdr.response));
5696 *extnt_count = bf_get(lpfc_mbx_get_rsrc_extent_info_cnt,
5698 *extnt_size = bf_get(lpfc_mbx_get_rsrc_extent_info_size,
5701 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5702 "3162 Retrieved extents type-%d from port: count:%d, "
5703 "size:%d\n", type, *extnt_count, *extnt_size);
5706 mempool_free(mbox, phba->mbox_mem_pool);
5711 * lpfc_sli4_chk_avail_extnt_rsrc - Check for available SLI4 resource extents.
5712 * @phba: Pointer to HBA context object.
5713 * @type: The extent type to check.
5715 * This function reads the current available extents from the port and checks
5716 * if the extent count or extent size has changed since the last access.
5717 * Callers use this routine post port reset to understand if there is a
5718 * extent reprovisioning requirement.
5721 * -Error: error indicates problem.
5722 * 1: Extent count or size has changed.
5726 lpfc_sli4_chk_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type)
5728 uint16_t curr_ext_cnt, rsrc_ext_cnt;
5729 uint16_t size_diff, rsrc_ext_size;
5731 struct lpfc_rsrc_blks *rsrc_entry;
5732 struct list_head *rsrc_blk_list = NULL;
5736 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5743 case LPFC_RSC_TYPE_FCOE_RPI:
5744 rsrc_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5746 case LPFC_RSC_TYPE_FCOE_VPI:
5747 rsrc_blk_list = &phba->lpfc_vpi_blk_list;
5749 case LPFC_RSC_TYPE_FCOE_XRI:
5750 rsrc_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5752 case LPFC_RSC_TYPE_FCOE_VFI:
5753 rsrc_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5759 list_for_each_entry(rsrc_entry, rsrc_blk_list, list) {
5761 if (rsrc_entry->rsrc_size != rsrc_ext_size)
5765 if (curr_ext_cnt != rsrc_ext_cnt || size_diff != 0)
5772 * lpfc_sli4_cfg_post_extnts -
5773 * @phba: Pointer to HBA context object.
5774 * @extnt_cnt - number of available extents.
5775 * @type - the extent type (rpi, xri, vfi, vpi).
5776 * @emb - buffer to hold either MBX_EMBED or MBX_NEMBED operation.
5777 * @mbox - pointer to the caller's allocated mailbox structure.
5779 * This function executes the extents allocation request. It also
5780 * takes care of the amount of memory needed to allocate or get the
5781 * allocated extents. It is the caller's responsibility to evaluate
5785 * -Error: Error value describes the condition found.
5789 lpfc_sli4_cfg_post_extnts(struct lpfc_hba *phba, uint16_t extnt_cnt,
5790 uint16_t type, bool *emb, LPFC_MBOXQ_t *mbox)
5795 uint32_t alloc_len, mbox_tmo;
5797 /* Calculate the total requested length of the dma memory */
5798 req_len = extnt_cnt * sizeof(uint16_t);
5801 * Calculate the size of an embedded mailbox. The uint32_t
5802 * accounts for extents-specific word.
5804 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
5808 * Presume the allocation and response will fit into an embedded
5809 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5811 *emb = LPFC_SLI4_MBX_EMBED;
5812 if (req_len > emb_len) {
5813 req_len = extnt_cnt * sizeof(uint16_t) +
5814 sizeof(union lpfc_sli4_cfg_shdr) +
5816 *emb = LPFC_SLI4_MBX_NEMBED;
5819 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5820 LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT,
5822 if (alloc_len < req_len) {
5823 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5824 "2982 Allocated DMA memory size (x%x) is "
5825 "less than the requested DMA memory "
5826 "size (x%x)\n", alloc_len, req_len);
5829 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, extnt_cnt, type, *emb);
5833 if (!phba->sli4_hba.intr_enable)
5834 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5836 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5837 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5846 * lpfc_sli4_alloc_extent - Allocate an SLI4 resource extent.
5847 * @phba: Pointer to HBA context object.
5848 * @type: The resource extent type to allocate.
5850 * This function allocates the number of elements for the specified
5854 lpfc_sli4_alloc_extent(struct lpfc_hba *phba, uint16_t type)
5857 uint16_t rsrc_id_cnt, rsrc_cnt, rsrc_size;
5858 uint16_t rsrc_id, rsrc_start, j, k;
5861 unsigned long longs;
5862 unsigned long *bmask;
5863 struct lpfc_rsrc_blks *rsrc_blks;
5866 struct lpfc_id_range *id_array = NULL;
5867 void *virtaddr = NULL;
5868 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5869 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5870 struct list_head *ext_blk_list;
5872 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5878 if ((rsrc_cnt == 0) || (rsrc_size == 0)) {
5879 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5880 "3009 No available Resource Extents "
5881 "for resource type 0x%x: Count: 0x%x, "
5882 "Size 0x%x\n", type, rsrc_cnt,
5887 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_INIT | LOG_SLI,
5888 "2903 Post resource extents type-0x%x: "
5889 "count:%d, size %d\n", type, rsrc_cnt, rsrc_size);
5891 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5895 rc = lpfc_sli4_cfg_post_extnts(phba, rsrc_cnt, type, &emb, mbox);
5902 * Figure out where the response is located. Then get local pointers
5903 * to the response data. The port does not guarantee to respond to
5904 * all extents counts request so update the local variable with the
5905 * allocated count from the port.
5907 if (emb == LPFC_SLI4_MBX_EMBED) {
5908 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
5909 id_array = &rsrc_ext->u.rsp.id[0];
5910 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
5912 virtaddr = mbox->sge_array->addr[0];
5913 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
5914 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
5915 id_array = &n_rsrc->id;
5918 longs = ((rsrc_cnt * rsrc_size) + BITS_PER_LONG - 1) / BITS_PER_LONG;
5919 rsrc_id_cnt = rsrc_cnt * rsrc_size;
5922 * Based on the resource size and count, correct the base and max
5925 length = sizeof(struct lpfc_rsrc_blks);
5927 case LPFC_RSC_TYPE_FCOE_RPI:
5928 phba->sli4_hba.rpi_bmask = kcalloc(longs,
5929 sizeof(unsigned long),
5931 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5935 phba->sli4_hba.rpi_ids = kcalloc(rsrc_id_cnt,
5938 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5939 kfree(phba->sli4_hba.rpi_bmask);
5945 * The next_rpi was initialized with the maximum available
5946 * count but the port may allocate a smaller number. Catch
5947 * that case and update the next_rpi.
5949 phba->sli4_hba.next_rpi = rsrc_id_cnt;
5951 /* Initialize local ptrs for common extent processing later. */
5952 bmask = phba->sli4_hba.rpi_bmask;
5953 ids = phba->sli4_hba.rpi_ids;
5954 ext_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5956 case LPFC_RSC_TYPE_FCOE_VPI:
5957 phba->vpi_bmask = kcalloc(longs, sizeof(unsigned long),
5959 if (unlikely(!phba->vpi_bmask)) {
5963 phba->vpi_ids = kcalloc(rsrc_id_cnt, sizeof(uint16_t),
5965 if (unlikely(!phba->vpi_ids)) {
5966 kfree(phba->vpi_bmask);
5971 /* Initialize local ptrs for common extent processing later. */
5972 bmask = phba->vpi_bmask;
5973 ids = phba->vpi_ids;
5974 ext_blk_list = &phba->lpfc_vpi_blk_list;
5976 case LPFC_RSC_TYPE_FCOE_XRI:
5977 phba->sli4_hba.xri_bmask = kcalloc(longs,
5978 sizeof(unsigned long),
5980 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5984 phba->sli4_hba.max_cfg_param.xri_used = 0;
5985 phba->sli4_hba.xri_ids = kcalloc(rsrc_id_cnt,
5988 if (unlikely(!phba->sli4_hba.xri_ids)) {
5989 kfree(phba->sli4_hba.xri_bmask);
5994 /* Initialize local ptrs for common extent processing later. */
5995 bmask = phba->sli4_hba.xri_bmask;
5996 ids = phba->sli4_hba.xri_ids;
5997 ext_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5999 case LPFC_RSC_TYPE_FCOE_VFI:
6000 phba->sli4_hba.vfi_bmask = kcalloc(longs,
6001 sizeof(unsigned long),
6003 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
6007 phba->sli4_hba.vfi_ids = kcalloc(rsrc_id_cnt,
6010 if (unlikely(!phba->sli4_hba.vfi_ids)) {
6011 kfree(phba->sli4_hba.vfi_bmask);
6016 /* Initialize local ptrs for common extent processing later. */
6017 bmask = phba->sli4_hba.vfi_bmask;
6018 ids = phba->sli4_hba.vfi_ids;
6019 ext_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
6022 /* Unsupported Opcode. Fail call. */
6026 ext_blk_list = NULL;
6031 * Complete initializing the extent configuration with the
6032 * allocated ids assigned to this function. The bitmask serves
6033 * as an index into the array and manages the available ids. The
6034 * array just stores the ids communicated to the port via the wqes.
6036 for (i = 0, j = 0, k = 0; i < rsrc_cnt; i++) {
6038 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_0,
6041 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_1,
6044 rsrc_blks = kzalloc(length, GFP_KERNEL);
6045 if (unlikely(!rsrc_blks)) {
6051 rsrc_blks->rsrc_start = rsrc_id;
6052 rsrc_blks->rsrc_size = rsrc_size;
6053 list_add_tail(&rsrc_blks->list, ext_blk_list);
6054 rsrc_start = rsrc_id;
6055 if ((type == LPFC_RSC_TYPE_FCOE_XRI) && (j == 0)) {
6056 phba->sli4_hba.io_xri_start = rsrc_start +
6057 lpfc_sli4_get_iocb_cnt(phba);
6060 while (rsrc_id < (rsrc_start + rsrc_size)) {
6065 /* Entire word processed. Get next word.*/
6070 lpfc_sli4_mbox_cmd_free(phba, mbox);
6077 * lpfc_sli4_dealloc_extent - Deallocate an SLI4 resource extent.
6078 * @phba: Pointer to HBA context object.
6079 * @type: the extent's type.
6081 * This function deallocates all extents of a particular resource type.
6082 * SLI4 does not allow for deallocating a particular extent range. It
6083 * is the caller's responsibility to release all kernel memory resources.
6086 lpfc_sli4_dealloc_extent(struct lpfc_hba *phba, uint16_t type)
6089 uint32_t length, mbox_tmo = 0;
6091 struct lpfc_mbx_dealloc_rsrc_extents *dealloc_rsrc;
6092 struct lpfc_rsrc_blks *rsrc_blk, *rsrc_blk_next;
6094 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6099 * This function sends an embedded mailbox because it only sends the
6100 * the resource type. All extents of this type are released by the
6103 length = (sizeof(struct lpfc_mbx_dealloc_rsrc_extents) -
6104 sizeof(struct lpfc_sli4_cfg_mhdr));
6105 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6106 LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT,
6107 length, LPFC_SLI4_MBX_EMBED);
6109 /* Send an extents count of 0 - the dealloc doesn't use it. */
6110 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
6111 LPFC_SLI4_MBX_EMBED);
6116 if (!phba->sli4_hba.intr_enable)
6117 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
6119 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
6120 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
6127 dealloc_rsrc = &mbox->u.mqe.un.dealloc_rsrc_extents;
6128 if (bf_get(lpfc_mbox_hdr_status,
6129 &dealloc_rsrc->header.cfg_shdr.response)) {
6130 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
6131 "2919 Failed to release resource extents "
6132 "for type %d - Status 0x%x Add'l Status 0x%x. "
6133 "Resource memory not released.\n",
6135 bf_get(lpfc_mbox_hdr_status,
6136 &dealloc_rsrc->header.cfg_shdr.response),
6137 bf_get(lpfc_mbox_hdr_add_status,
6138 &dealloc_rsrc->header.cfg_shdr.response));
6143 /* Release kernel memory resources for the specific type. */
6145 case LPFC_RSC_TYPE_FCOE_VPI:
6146 kfree(phba->vpi_bmask);
6147 kfree(phba->vpi_ids);
6148 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6149 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
6150 &phba->lpfc_vpi_blk_list, list) {
6151 list_del_init(&rsrc_blk->list);
6154 phba->sli4_hba.max_cfg_param.vpi_used = 0;
6156 case LPFC_RSC_TYPE_FCOE_XRI:
6157 kfree(phba->sli4_hba.xri_bmask);
6158 kfree(phba->sli4_hba.xri_ids);
6159 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
6160 &phba->sli4_hba.lpfc_xri_blk_list, list) {
6161 list_del_init(&rsrc_blk->list);
6165 case LPFC_RSC_TYPE_FCOE_VFI:
6166 kfree(phba->sli4_hba.vfi_bmask);
6167 kfree(phba->sli4_hba.vfi_ids);
6168 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6169 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
6170 &phba->sli4_hba.lpfc_vfi_blk_list, list) {
6171 list_del_init(&rsrc_blk->list);
6175 case LPFC_RSC_TYPE_FCOE_RPI:
6176 /* RPI bitmask and physical id array are cleaned up earlier. */
6177 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
6178 &phba->sli4_hba.lpfc_rpi_blk_list, list) {
6179 list_del_init(&rsrc_blk->list);
6187 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6190 mempool_free(mbox, phba->mbox_mem_pool);
6195 lpfc_set_features(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox,
6200 len = sizeof(struct lpfc_mbx_set_feature) -
6201 sizeof(struct lpfc_sli4_cfg_mhdr);
6202 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6203 LPFC_MBOX_OPCODE_SET_FEATURES, len,
6204 LPFC_SLI4_MBX_EMBED);
6207 case LPFC_SET_UE_RECOVERY:
6208 bf_set(lpfc_mbx_set_feature_UER,
6209 &mbox->u.mqe.un.set_feature, 1);
6210 mbox->u.mqe.un.set_feature.feature = LPFC_SET_UE_RECOVERY;
6211 mbox->u.mqe.un.set_feature.param_len = 8;
6213 case LPFC_SET_MDS_DIAGS:
6214 bf_set(lpfc_mbx_set_feature_mds,
6215 &mbox->u.mqe.un.set_feature, 1);
6216 bf_set(lpfc_mbx_set_feature_mds_deep_loopbk,
6217 &mbox->u.mqe.un.set_feature, 1);
6218 mbox->u.mqe.un.set_feature.feature = LPFC_SET_MDS_DIAGS;
6219 mbox->u.mqe.un.set_feature.param_len = 8;
6227 * lpfc_ras_stop_fwlog: Disable FW logging by the adapter
6228 * @phba: Pointer to HBA context object.
6230 * Disable FW logging into host memory on the adapter. To
6231 * be done before reading logs from the host memory.
6234 lpfc_ras_stop_fwlog(struct lpfc_hba *phba)
6236 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6238 ras_fwlog->ras_active = false;
6240 /* Disable FW logging to host memory */
6241 writel(LPFC_CTL_PDEV_CTL_DDL_RAS,
6242 phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET);
6246 * lpfc_sli4_ras_dma_free - Free memory allocated for FW logging.
6247 * @phba: Pointer to HBA context object.
6249 * This function is called to free memory allocated for RAS FW logging
6250 * support in the driver.
6253 lpfc_sli4_ras_dma_free(struct lpfc_hba *phba)
6255 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6256 struct lpfc_dmabuf *dmabuf, *next;
6258 if (!list_empty(&ras_fwlog->fwlog_buff_list)) {
6259 list_for_each_entry_safe(dmabuf, next,
6260 &ras_fwlog->fwlog_buff_list,
6262 list_del(&dmabuf->list);
6263 dma_free_coherent(&phba->pcidev->dev,
6264 LPFC_RAS_MAX_ENTRY_SIZE,
6265 dmabuf->virt, dmabuf->phys);
6270 if (ras_fwlog->lwpd.virt) {
6271 dma_free_coherent(&phba->pcidev->dev,
6272 sizeof(uint32_t) * 2,
6273 ras_fwlog->lwpd.virt,
6274 ras_fwlog->lwpd.phys);
6275 ras_fwlog->lwpd.virt = NULL;
6278 ras_fwlog->ras_active = false;
6282 * lpfc_sli4_ras_dma_alloc: Allocate memory for FW support
6283 * @phba: Pointer to HBA context object.
6284 * @fwlog_buff_count: Count of buffers to be created.
6286 * This routine DMA memory for Log Write Position Data[LPWD] and buffer
6287 * to update FW log is posted to the adapter.
6288 * Buffer count is calculated based on module param ras_fwlog_buffsize
6289 * Size of each buffer posted to FW is 64K.
6293 lpfc_sli4_ras_dma_alloc(struct lpfc_hba *phba,
6294 uint32_t fwlog_buff_count)
6296 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6297 struct lpfc_dmabuf *dmabuf;
6300 /* Initialize List */
6301 INIT_LIST_HEAD(&ras_fwlog->fwlog_buff_list);
6303 /* Allocate memory for the LWPD */
6304 ras_fwlog->lwpd.virt = dma_alloc_coherent(&phba->pcidev->dev,
6305 sizeof(uint32_t) * 2,
6306 &ras_fwlog->lwpd.phys,
6308 if (!ras_fwlog->lwpd.virt) {
6309 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6310 "6185 LWPD Memory Alloc Failed\n");
6315 ras_fwlog->fw_buffcount = fwlog_buff_count;
6316 for (i = 0; i < ras_fwlog->fw_buffcount; i++) {
6317 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
6321 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6322 "6186 Memory Alloc failed FW logging");
6326 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
6327 LPFC_RAS_MAX_ENTRY_SIZE,
6328 &dmabuf->phys, GFP_KERNEL);
6329 if (!dmabuf->virt) {
6332 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6333 "6187 DMA Alloc Failed FW logging");
6336 dmabuf->buffer_tag = i;
6337 list_add_tail(&dmabuf->list, &ras_fwlog->fwlog_buff_list);
6342 lpfc_sli4_ras_dma_free(phba);
6348 * lpfc_sli4_ras_mbox_cmpl: Completion handler for RAS MBX command
6349 * @phba: pointer to lpfc hba data structure.
6350 * @pmboxq: pointer to the driver internal queue element for mailbox command.
6352 * Completion handler for driver's RAS MBX command to the device.
6355 lpfc_sli4_ras_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
6358 union lpfc_sli4_cfg_shdr *shdr;
6359 uint32_t shdr_status, shdr_add_status;
6360 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6364 shdr = (union lpfc_sli4_cfg_shdr *)
6365 &pmb->u.mqe.un.ras_fwlog.header.cfg_shdr;
6366 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6367 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6369 if (mb->mbxStatus != MBX_SUCCESS || shdr_status) {
6370 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
6371 "6188 FW LOG mailbox "
6372 "completed with status x%x add_status x%x,"
6373 " mbx status x%x\n",
6374 shdr_status, shdr_add_status, mb->mbxStatus);
6376 ras_fwlog->ras_hwsupport = false;
6380 ras_fwlog->ras_active = true;
6381 mempool_free(pmb, phba->mbox_mem_pool);
6386 /* Free RAS DMA memory */
6387 lpfc_sli4_ras_dma_free(phba);
6388 mempool_free(pmb, phba->mbox_mem_pool);
6392 * lpfc_sli4_ras_fwlog_init: Initialize memory and post RAS MBX command
6393 * @phba: pointer to lpfc hba data structure.
6394 * @fwlog_level: Logging verbosity level.
6395 * @fwlog_enable: Enable/Disable logging.
6397 * Initialize memory and post mailbox command to enable FW logging in host
6401 lpfc_sli4_ras_fwlog_init(struct lpfc_hba *phba,
6402 uint32_t fwlog_level,
6403 uint32_t fwlog_enable)
6405 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6406 struct lpfc_mbx_set_ras_fwlog *mbx_fwlog = NULL;
6407 struct lpfc_dmabuf *dmabuf;
6409 uint32_t len = 0, fwlog_buffsize, fwlog_entry_count;
6412 fwlog_buffsize = (LPFC_RAS_MIN_BUFF_POST_SIZE *
6413 phba->cfg_ras_fwlog_buffsize);
6414 fwlog_entry_count = (fwlog_buffsize/LPFC_RAS_MAX_ENTRY_SIZE);
6417 * If re-enabling FW logging support use earlier allocated
6418 * DMA buffers while posting MBX command.
6420 if (!ras_fwlog->lwpd.virt) {
6421 rc = lpfc_sli4_ras_dma_alloc(phba, fwlog_entry_count);
6423 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6424 "6189 FW Log Memory Allocation Failed");
6429 /* Setup Mailbox command */
6430 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6432 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6433 "6190 RAS MBX Alloc Failed");
6438 ras_fwlog->fw_loglevel = fwlog_level;
6439 len = (sizeof(struct lpfc_mbx_set_ras_fwlog) -
6440 sizeof(struct lpfc_sli4_cfg_mhdr));
6442 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_LOWLEVEL,
6443 LPFC_MBOX_OPCODE_SET_DIAG_LOG_OPTION,
6444 len, LPFC_SLI4_MBX_EMBED);
6446 mbx_fwlog = (struct lpfc_mbx_set_ras_fwlog *)&mbox->u.mqe.un.ras_fwlog;
6447 bf_set(lpfc_fwlog_enable, &mbx_fwlog->u.request,
6449 bf_set(lpfc_fwlog_loglvl, &mbx_fwlog->u.request,
6450 ras_fwlog->fw_loglevel);
6451 bf_set(lpfc_fwlog_buffcnt, &mbx_fwlog->u.request,
6452 ras_fwlog->fw_buffcount);
6453 bf_set(lpfc_fwlog_buffsz, &mbx_fwlog->u.request,
6454 LPFC_RAS_MAX_ENTRY_SIZE/SLI4_PAGE_SIZE);
6456 /* Update DMA buffer address */
6457 list_for_each_entry(dmabuf, &ras_fwlog->fwlog_buff_list, list) {
6458 memset(dmabuf->virt, 0, LPFC_RAS_MAX_ENTRY_SIZE);
6460 mbx_fwlog->u.request.buff_fwlog[dmabuf->buffer_tag].addr_lo =
6461 putPaddrLow(dmabuf->phys);
6463 mbx_fwlog->u.request.buff_fwlog[dmabuf->buffer_tag].addr_hi =
6464 putPaddrHigh(dmabuf->phys);
6467 /* Update LPWD address */
6468 mbx_fwlog->u.request.lwpd.addr_lo = putPaddrLow(ras_fwlog->lwpd.phys);
6469 mbx_fwlog->u.request.lwpd.addr_hi = putPaddrHigh(ras_fwlog->lwpd.phys);
6471 mbox->vport = phba->pport;
6472 mbox->mbox_cmpl = lpfc_sli4_ras_mbox_cmpl;
6474 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
6476 if (rc == MBX_NOT_FINISHED) {
6477 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6478 "6191 FW-Log Mailbox failed. "
6479 "status %d mbxStatus : x%x", rc,
6480 bf_get(lpfc_mqe_status, &mbox->u.mqe));
6481 mempool_free(mbox, phba->mbox_mem_pool);
6488 lpfc_sli4_ras_dma_free(phba);
6494 * lpfc_sli4_ras_setup - Check if RAS supported on the adapter
6495 * @phba: Pointer to HBA context object.
6497 * Check if RAS is supported on the adapter and initialize it.
6500 lpfc_sli4_ras_setup(struct lpfc_hba *phba)
6502 /* Check RAS FW Log needs to be enabled or not */
6503 if (lpfc_check_fwlog_support(phba))
6506 lpfc_sli4_ras_fwlog_init(phba, phba->cfg_ras_fwlog_level,
6507 LPFC_RAS_ENABLE_LOGGING);
6511 * lpfc_sli4_alloc_resource_identifiers - Allocate all SLI4 resource extents.
6512 * @phba: Pointer to HBA context object.
6514 * This function allocates all SLI4 resource identifiers.
6517 lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba *phba)
6519 int i, rc, error = 0;
6520 uint16_t count, base;
6521 unsigned long longs;
6523 if (!phba->sli4_hba.rpi_hdrs_in_use)
6524 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
6525 if (phba->sli4_hba.extents_in_use) {
6527 * The port supports resource extents. The XRI, VPI, VFI, RPI
6528 * resource extent count must be read and allocated before
6529 * provisioning the resource id arrays.
6531 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
6532 LPFC_IDX_RSRC_RDY) {
6534 * Extent-based resources are set - the driver could
6535 * be in a port reset. Figure out if any corrective
6536 * actions need to be taken.
6538 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
6539 LPFC_RSC_TYPE_FCOE_VFI);
6542 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
6543 LPFC_RSC_TYPE_FCOE_VPI);
6546 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
6547 LPFC_RSC_TYPE_FCOE_XRI);
6550 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
6551 LPFC_RSC_TYPE_FCOE_RPI);
6556 * It's possible that the number of resources
6557 * provided to this port instance changed between
6558 * resets. Detect this condition and reallocate
6559 * resources. Otherwise, there is no action.
6562 lpfc_printf_log(phba, KERN_INFO,
6563 LOG_MBOX | LOG_INIT,
6564 "2931 Detected extent resource "
6565 "change. Reallocating all "
6567 rc = lpfc_sli4_dealloc_extent(phba,
6568 LPFC_RSC_TYPE_FCOE_VFI);
6569 rc = lpfc_sli4_dealloc_extent(phba,
6570 LPFC_RSC_TYPE_FCOE_VPI);
6571 rc = lpfc_sli4_dealloc_extent(phba,
6572 LPFC_RSC_TYPE_FCOE_XRI);
6573 rc = lpfc_sli4_dealloc_extent(phba,
6574 LPFC_RSC_TYPE_FCOE_RPI);
6579 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
6583 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
6587 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
6591 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
6594 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
6599 * The port does not support resource extents. The XRI, VPI,
6600 * VFI, RPI resource ids were determined from READ_CONFIG.
6601 * Just allocate the bitmasks and provision the resource id
6602 * arrays. If a port reset is active, the resources don't
6603 * need any action - just exit.
6605 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
6606 LPFC_IDX_RSRC_RDY) {
6607 lpfc_sli4_dealloc_resource_identifiers(phba);
6608 lpfc_sli4_remove_rpis(phba);
6611 count = phba->sli4_hba.max_cfg_param.max_rpi;
6613 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6614 "3279 Invalid provisioning of "
6619 base = phba->sli4_hba.max_cfg_param.rpi_base;
6620 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6621 phba->sli4_hba.rpi_bmask = kcalloc(longs,
6622 sizeof(unsigned long),
6624 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
6628 phba->sli4_hba.rpi_ids = kcalloc(count, sizeof(uint16_t),
6630 if (unlikely(!phba->sli4_hba.rpi_ids)) {
6632 goto free_rpi_bmask;
6635 for (i = 0; i < count; i++)
6636 phba->sli4_hba.rpi_ids[i] = base + i;
6639 count = phba->sli4_hba.max_cfg_param.max_vpi;
6641 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6642 "3280 Invalid provisioning of "
6647 base = phba->sli4_hba.max_cfg_param.vpi_base;
6648 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6649 phba->vpi_bmask = kcalloc(longs, sizeof(unsigned long),
6651 if (unlikely(!phba->vpi_bmask)) {
6655 phba->vpi_ids = kcalloc(count, sizeof(uint16_t),
6657 if (unlikely(!phba->vpi_ids)) {
6659 goto free_vpi_bmask;
6662 for (i = 0; i < count; i++)
6663 phba->vpi_ids[i] = base + i;
6666 count = phba->sli4_hba.max_cfg_param.max_xri;
6668 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6669 "3281 Invalid provisioning of "
6674 base = phba->sli4_hba.max_cfg_param.xri_base;
6675 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6676 phba->sli4_hba.xri_bmask = kcalloc(longs,
6677 sizeof(unsigned long),
6679 if (unlikely(!phba->sli4_hba.xri_bmask)) {
6683 phba->sli4_hba.max_cfg_param.xri_used = 0;
6684 phba->sli4_hba.xri_ids = kcalloc(count, sizeof(uint16_t),
6686 if (unlikely(!phba->sli4_hba.xri_ids)) {
6688 goto free_xri_bmask;
6691 for (i = 0; i < count; i++)
6692 phba->sli4_hba.xri_ids[i] = base + i;
6695 count = phba->sli4_hba.max_cfg_param.max_vfi;
6697 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6698 "3282 Invalid provisioning of "
6703 base = phba->sli4_hba.max_cfg_param.vfi_base;
6704 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6705 phba->sli4_hba.vfi_bmask = kcalloc(longs,
6706 sizeof(unsigned long),
6708 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
6712 phba->sli4_hba.vfi_ids = kcalloc(count, sizeof(uint16_t),
6714 if (unlikely(!phba->sli4_hba.vfi_ids)) {
6716 goto free_vfi_bmask;
6719 for (i = 0; i < count; i++)
6720 phba->sli4_hba.vfi_ids[i] = base + i;
6723 * Mark all resources ready. An HBA reset doesn't need
6724 * to reset the initialization.
6726 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
6732 kfree(phba->sli4_hba.vfi_bmask);
6733 phba->sli4_hba.vfi_bmask = NULL;
6735 kfree(phba->sli4_hba.xri_ids);
6736 phba->sli4_hba.xri_ids = NULL;
6738 kfree(phba->sli4_hba.xri_bmask);
6739 phba->sli4_hba.xri_bmask = NULL;
6741 kfree(phba->vpi_ids);
6742 phba->vpi_ids = NULL;
6744 kfree(phba->vpi_bmask);
6745 phba->vpi_bmask = NULL;
6747 kfree(phba->sli4_hba.rpi_ids);
6748 phba->sli4_hba.rpi_ids = NULL;
6750 kfree(phba->sli4_hba.rpi_bmask);
6751 phba->sli4_hba.rpi_bmask = NULL;
6757 * lpfc_sli4_dealloc_resource_identifiers - Deallocate all SLI4 resource extents.
6758 * @phba: Pointer to HBA context object.
6760 * This function allocates the number of elements for the specified
6764 lpfc_sli4_dealloc_resource_identifiers(struct lpfc_hba *phba)
6766 if (phba->sli4_hba.extents_in_use) {
6767 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
6768 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
6769 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
6770 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
6772 kfree(phba->vpi_bmask);
6773 phba->sli4_hba.max_cfg_param.vpi_used = 0;
6774 kfree(phba->vpi_ids);
6775 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6776 kfree(phba->sli4_hba.xri_bmask);
6777 kfree(phba->sli4_hba.xri_ids);
6778 kfree(phba->sli4_hba.vfi_bmask);
6779 kfree(phba->sli4_hba.vfi_ids);
6780 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6781 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6788 * lpfc_sli4_get_allocated_extnts - Get the port's allocated extents.
6789 * @phba: Pointer to HBA context object.
6790 * @type: The resource extent type.
6791 * @extnt_count: buffer to hold port extent count response
6792 * @extnt_size: buffer to hold port extent size response.
6794 * This function calls the port to read the host allocated extents
6795 * for a particular type.
6798 lpfc_sli4_get_allocated_extnts(struct lpfc_hba *phba, uint16_t type,
6799 uint16_t *extnt_cnt, uint16_t *extnt_size)
6803 uint16_t curr_blks = 0;
6804 uint32_t req_len, emb_len;
6805 uint32_t alloc_len, mbox_tmo;
6806 struct list_head *blk_list_head;
6807 struct lpfc_rsrc_blks *rsrc_blk;
6809 void *virtaddr = NULL;
6810 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
6811 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
6812 union lpfc_sli4_cfg_shdr *shdr;
6815 case LPFC_RSC_TYPE_FCOE_VPI:
6816 blk_list_head = &phba->lpfc_vpi_blk_list;
6818 case LPFC_RSC_TYPE_FCOE_XRI:
6819 blk_list_head = &phba->sli4_hba.lpfc_xri_blk_list;
6821 case LPFC_RSC_TYPE_FCOE_VFI:
6822 blk_list_head = &phba->sli4_hba.lpfc_vfi_blk_list;
6824 case LPFC_RSC_TYPE_FCOE_RPI:
6825 blk_list_head = &phba->sli4_hba.lpfc_rpi_blk_list;
6831 /* Count the number of extents currently allocatd for this type. */
6832 list_for_each_entry(rsrc_blk, blk_list_head, list) {
6833 if (curr_blks == 0) {
6835 * The GET_ALLOCATED mailbox does not return the size,
6836 * just the count. The size should be just the size
6837 * stored in the current allocated block and all sizes
6838 * for an extent type are the same so set the return
6841 *extnt_size = rsrc_blk->rsrc_size;
6847 * Calculate the size of an embedded mailbox. The uint32_t
6848 * accounts for extents-specific word.
6850 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
6854 * Presume the allocation and response will fit into an embedded
6855 * mailbox. If not true, reconfigure to a non-embedded mailbox.
6857 emb = LPFC_SLI4_MBX_EMBED;
6859 if (req_len > emb_len) {
6860 req_len = curr_blks * sizeof(uint16_t) +
6861 sizeof(union lpfc_sli4_cfg_shdr) +
6863 emb = LPFC_SLI4_MBX_NEMBED;
6866 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6869 memset(mbox, 0, sizeof(LPFC_MBOXQ_t));
6871 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6872 LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT,
6874 if (alloc_len < req_len) {
6875 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6876 "2983 Allocated DMA memory size (x%x) is "
6877 "less than the requested DMA memory "
6878 "size (x%x)\n", alloc_len, req_len);
6882 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, curr_blks, type, emb);
6888 if (!phba->sli4_hba.intr_enable)
6889 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
6891 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
6892 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
6901 * Figure out where the response is located. Then get local pointers
6902 * to the response data. The port does not guarantee to respond to
6903 * all extents counts request so update the local variable with the
6904 * allocated count from the port.
6906 if (emb == LPFC_SLI4_MBX_EMBED) {
6907 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
6908 shdr = &rsrc_ext->header.cfg_shdr;
6909 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
6911 virtaddr = mbox->sge_array->addr[0];
6912 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
6913 shdr = &n_rsrc->cfg_shdr;
6914 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
6917 if (bf_get(lpfc_mbox_hdr_status, &shdr->response)) {
6918 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
6919 "2984 Failed to read allocated resources "
6920 "for type %d - Status 0x%x Add'l Status 0x%x.\n",
6922 bf_get(lpfc_mbox_hdr_status, &shdr->response),
6923 bf_get(lpfc_mbox_hdr_add_status, &shdr->response));
6928 lpfc_sli4_mbox_cmd_free(phba, mbox);
6933 * lpfc_sli4_repost_sgl_list - Repost the buffers sgl pages as block
6934 * @phba: pointer to lpfc hba data structure.
6935 * @pring: Pointer to driver SLI ring object.
6936 * @sgl_list: linked link of sgl buffers to post
6937 * @cnt: number of linked list buffers
6939 * This routine walks the list of buffers that have been allocated and
6940 * repost them to the port by using SGL block post. This is needed after a
6941 * pci_function_reset/warm_start or start. It attempts to construct blocks
6942 * of buffer sgls which contains contiguous xris and uses the non-embedded
6943 * SGL block post mailbox commands to post them to the port. For single
6944 * buffer sgl with non-contiguous xri, if any, it shall use embedded SGL post
6945 * mailbox command for posting.
6947 * Returns: 0 = success, non-zero failure.
6950 lpfc_sli4_repost_sgl_list(struct lpfc_hba *phba,
6951 struct list_head *sgl_list, int cnt)
6953 struct lpfc_sglq *sglq_entry = NULL;
6954 struct lpfc_sglq *sglq_entry_next = NULL;
6955 struct lpfc_sglq *sglq_entry_first = NULL;
6956 int status, total_cnt;
6957 int post_cnt = 0, num_posted = 0, block_cnt = 0;
6958 int last_xritag = NO_XRI;
6959 LIST_HEAD(prep_sgl_list);
6960 LIST_HEAD(blck_sgl_list);
6961 LIST_HEAD(allc_sgl_list);
6962 LIST_HEAD(post_sgl_list);
6963 LIST_HEAD(free_sgl_list);
6965 spin_lock_irq(&phba->hbalock);
6966 spin_lock(&phba->sli4_hba.sgl_list_lock);
6967 list_splice_init(sgl_list, &allc_sgl_list);
6968 spin_unlock(&phba->sli4_hba.sgl_list_lock);
6969 spin_unlock_irq(&phba->hbalock);
6972 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
6973 &allc_sgl_list, list) {
6974 list_del_init(&sglq_entry->list);
6976 if ((last_xritag != NO_XRI) &&
6977 (sglq_entry->sli4_xritag != last_xritag + 1)) {
6978 /* a hole in xri block, form a sgl posting block */
6979 list_splice_init(&prep_sgl_list, &blck_sgl_list);
6980 post_cnt = block_cnt - 1;
6981 /* prepare list for next posting block */
6982 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6985 /* prepare list for next posting block */
6986 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6987 /* enough sgls for non-embed sgl mbox command */
6988 if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
6989 list_splice_init(&prep_sgl_list,
6991 post_cnt = block_cnt;
6997 /* keep track of last sgl's xritag */
6998 last_xritag = sglq_entry->sli4_xritag;
7000 /* end of repost sgl list condition for buffers */
7001 if (num_posted == total_cnt) {
7002 if (post_cnt == 0) {
7003 list_splice_init(&prep_sgl_list,
7005 post_cnt = block_cnt;
7006 } else if (block_cnt == 1) {
7007 status = lpfc_sli4_post_sgl(phba,
7008 sglq_entry->phys, 0,
7009 sglq_entry->sli4_xritag);
7011 /* successful, put sgl to posted list */
7012 list_add_tail(&sglq_entry->list,
7015 /* Failure, put sgl to free list */
7016 lpfc_printf_log(phba, KERN_WARNING,
7018 "3159 Failed to post "
7019 "sgl, xritag:x%x\n",
7020 sglq_entry->sli4_xritag);
7021 list_add_tail(&sglq_entry->list,
7028 /* continue until a nembed page worth of sgls */
7032 /* post the buffer list sgls as a block */
7033 status = lpfc_sli4_post_sgl_list(phba, &blck_sgl_list,
7037 /* success, put sgl list to posted sgl list */
7038 list_splice_init(&blck_sgl_list, &post_sgl_list);
7040 /* Failure, put sgl list to free sgl list */
7041 sglq_entry_first = list_first_entry(&blck_sgl_list,
7044 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
7045 "3160 Failed to post sgl-list, "
7047 sglq_entry_first->sli4_xritag,
7048 (sglq_entry_first->sli4_xritag +
7050 list_splice_init(&blck_sgl_list, &free_sgl_list);
7051 total_cnt -= post_cnt;
7054 /* don't reset xirtag due to hole in xri block */
7056 last_xritag = NO_XRI;
7058 /* reset sgl post count for next round of posting */
7062 /* free the sgls failed to post */
7063 lpfc_free_sgl_list(phba, &free_sgl_list);
7065 /* push sgls posted to the available list */
7066 if (!list_empty(&post_sgl_list)) {
7067 spin_lock_irq(&phba->hbalock);
7068 spin_lock(&phba->sli4_hba.sgl_list_lock);
7069 list_splice_init(&post_sgl_list, sgl_list);
7070 spin_unlock(&phba->sli4_hba.sgl_list_lock);
7071 spin_unlock_irq(&phba->hbalock);
7073 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7074 "3161 Failure to post sgl to port.\n");
7078 /* return the number of XRIs actually posted */
7083 * lpfc_sli4_repost_io_sgl_list - Repost all the allocated nvme buffer sgls
7084 * @phba: pointer to lpfc hba data structure.
7086 * This routine walks the list of nvme buffers that have been allocated and
7087 * repost them to the port by using SGL block post. This is needed after a
7088 * pci_function_reset/warm_start or start. The lpfc_hba_down_post_s4 routine
7089 * is responsible for moving all nvme buffers on the lpfc_abts_nvme_sgl_list
7090 * to the lpfc_io_buf_list. If the repost fails, reject all nvme buffers.
7092 * Returns: 0 = success, non-zero failure.
7095 lpfc_sli4_repost_io_sgl_list(struct lpfc_hba *phba)
7097 LIST_HEAD(post_nblist);
7098 int num_posted, rc = 0;
7100 /* get all NVME buffers need to repost to a local list */
7101 lpfc_io_buf_flush(phba, &post_nblist);
7103 /* post the list of nvme buffer sgls to port if available */
7104 if (!list_empty(&post_nblist)) {
7105 num_posted = lpfc_sli4_post_io_sgl_list(
7106 phba, &post_nblist, phba->sli4_hba.io_xri_cnt);
7107 /* failed to post any nvme buffer, return error */
7108 if (num_posted == 0)
7115 lpfc_set_host_data(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
7119 len = sizeof(struct lpfc_mbx_set_host_data) -
7120 sizeof(struct lpfc_sli4_cfg_mhdr);
7121 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
7122 LPFC_MBOX_OPCODE_SET_HOST_DATA, len,
7123 LPFC_SLI4_MBX_EMBED);
7125 mbox->u.mqe.un.set_host_data.param_id = LPFC_SET_HOST_OS_DRIVER_VERSION;
7126 mbox->u.mqe.un.set_host_data.param_len =
7127 LPFC_HOST_OS_DRIVER_VERSION_SIZE;
7128 snprintf(mbox->u.mqe.un.set_host_data.data,
7129 LPFC_HOST_OS_DRIVER_VERSION_SIZE,
7130 "Linux %s v"LPFC_DRIVER_VERSION,
7131 (phba->hba_flag & HBA_FCOE_MODE) ? "FCoE" : "FC");
7135 lpfc_post_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *hrq,
7136 struct lpfc_queue *drq, int count, int idx)
7139 struct lpfc_rqe hrqe;
7140 struct lpfc_rqe drqe;
7141 struct lpfc_rqb *rqbp;
7142 unsigned long flags;
7143 struct rqb_dmabuf *rqb_buffer;
7144 LIST_HEAD(rqb_buf_list);
7146 spin_lock_irqsave(&phba->hbalock, flags);
7148 for (i = 0; i < count; i++) {
7149 /* IF RQ is already full, don't bother */
7150 if (rqbp->buffer_count + i >= rqbp->entry_count - 1)
7152 rqb_buffer = rqbp->rqb_alloc_buffer(phba);
7155 rqb_buffer->hrq = hrq;
7156 rqb_buffer->drq = drq;
7157 rqb_buffer->idx = idx;
7158 list_add_tail(&rqb_buffer->hbuf.list, &rqb_buf_list);
7160 while (!list_empty(&rqb_buf_list)) {
7161 list_remove_head(&rqb_buf_list, rqb_buffer, struct rqb_dmabuf,
7164 hrqe.address_lo = putPaddrLow(rqb_buffer->hbuf.phys);
7165 hrqe.address_hi = putPaddrHigh(rqb_buffer->hbuf.phys);
7166 drqe.address_lo = putPaddrLow(rqb_buffer->dbuf.phys);
7167 drqe.address_hi = putPaddrHigh(rqb_buffer->dbuf.phys);
7168 rc = lpfc_sli4_rq_put(hrq, drq, &hrqe, &drqe);
7170 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7171 "6421 Cannot post to HRQ %d: %x %x %x "
7179 rqbp->rqb_free_buffer(phba, rqb_buffer);
7181 list_add_tail(&rqb_buffer->hbuf.list,
7182 &rqbp->rqb_buffer_list);
7183 rqbp->buffer_count++;
7186 spin_unlock_irqrestore(&phba->hbalock, flags);
7191 * lpfc_sli4_hba_setup - SLI4 device initialization PCI function
7192 * @phba: Pointer to HBA context object.
7194 * This function is the main SLI4 device initialization PCI function. This
7195 * function is called by the HBA initialization code, HBA reset code and
7196 * HBA error attention handler code. Caller is not required to hold any
7200 lpfc_sli4_hba_setup(struct lpfc_hba *phba)
7202 int rc, i, cnt, len;
7203 LPFC_MBOXQ_t *mboxq;
7204 struct lpfc_mqe *mqe;
7207 uint32_t ftr_rsp = 0;
7208 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
7209 struct lpfc_vport *vport = phba->pport;
7210 struct lpfc_dmabuf *mp;
7211 struct lpfc_rqb *rqbp;
7213 /* Perform a PCI function reset to start from clean */
7214 rc = lpfc_pci_function_reset(phba);
7218 /* Check the HBA Host Status Register for readyness */
7219 rc = lpfc_sli4_post_status_check(phba);
7223 spin_lock_irq(&phba->hbalock);
7224 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
7225 spin_unlock_irq(&phba->hbalock);
7229 * Allocate a single mailbox container for initializing the
7232 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7236 /* Issue READ_REV to collect vpd and FW information. */
7237 vpd_size = SLI4_PAGE_SIZE;
7238 vpd = kzalloc(vpd_size, GFP_KERNEL);
7244 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
7250 mqe = &mboxq->u.mqe;
7251 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
7252 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev)) {
7253 phba->hba_flag |= HBA_FCOE_MODE;
7254 phba->fcp_embed_io = 0; /* SLI4 FC support only */
7256 phba->hba_flag &= ~HBA_FCOE_MODE;
7259 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
7261 phba->hba_flag |= HBA_FIP_SUPPORT;
7263 phba->hba_flag &= ~HBA_FIP_SUPPORT;
7265 phba->hba_flag &= ~HBA_FCP_IOQ_FLUSH;
7267 if (phba->sli_rev != LPFC_SLI_REV4) {
7268 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7269 "0376 READ_REV Error. SLI Level %d "
7270 "FCoE enabled %d\n",
7271 phba->sli_rev, phba->hba_flag & HBA_FCOE_MODE);
7278 * Continue initialization with default values even if driver failed
7279 * to read FCoE param config regions, only read parameters if the
7282 if (phba->hba_flag & HBA_FCOE_MODE &&
7283 lpfc_sli4_read_fcoe_params(phba))
7284 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_INIT,
7285 "2570 Failed to read FCoE parameters\n");
7288 * Retrieve sli4 device physical port name, failure of doing it
7289 * is considered as non-fatal.
7291 rc = lpfc_sli4_retrieve_pport_name(phba);
7293 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7294 "3080 Successful retrieving SLI4 device "
7295 "physical port name: %s.\n", phba->Port);
7297 rc = lpfc_sli4_get_ctl_attr(phba);
7299 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7300 "8351 Successful retrieving SLI4 device "
7304 * Evaluate the read rev and vpd data. Populate the driver
7305 * state with the results. If this routine fails, the failure
7306 * is not fatal as the driver will use generic values.
7308 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
7309 if (unlikely(!rc)) {
7310 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7311 "0377 Error %d parsing vpd. "
7312 "Using defaults.\n", rc);
7317 /* Save information as VPD data */
7318 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
7319 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
7322 * This is because first G7 ASIC doesn't support the standard
7323 * 0x5a NVME cmd descriptor type/subtype
7325 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
7326 LPFC_SLI_INTF_IF_TYPE_6) &&
7327 (phba->vpd.rev.biuRev == LPFC_G7_ASIC_1) &&
7328 (phba->vpd.rev.smRev == 0) &&
7329 (phba->cfg_nvme_embed_cmd == 1))
7330 phba->cfg_nvme_embed_cmd = 0;
7332 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
7333 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
7335 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
7337 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
7339 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
7341 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
7342 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
7343 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
7344 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
7345 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
7346 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
7347 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7348 "(%d):0380 READ_REV Status x%x "
7349 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
7350 mboxq->vport ? mboxq->vport->vpi : 0,
7351 bf_get(lpfc_mqe_status, mqe),
7352 phba->vpd.rev.opFwName,
7353 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
7354 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
7356 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */
7357 rc = (phba->sli4_hba.max_cfg_param.max_xri >> 3);
7358 if (phba->pport->cfg_lun_queue_depth > rc) {
7359 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7360 "3362 LUN queue depth changed from %d to %d\n",
7361 phba->pport->cfg_lun_queue_depth, rc);
7362 phba->pport->cfg_lun_queue_depth = rc;
7365 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
7366 LPFC_SLI_INTF_IF_TYPE_0) {
7367 lpfc_set_features(phba, mboxq, LPFC_SET_UE_RECOVERY);
7368 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7369 if (rc == MBX_SUCCESS) {
7370 phba->hba_flag |= HBA_RECOVERABLE_UE;
7371 /* Set 1Sec interval to detect UE */
7372 phba->eratt_poll_interval = 1;
7373 phba->sli4_hba.ue_to_sr = bf_get(
7374 lpfc_mbx_set_feature_UESR,
7375 &mboxq->u.mqe.un.set_feature);
7376 phba->sli4_hba.ue_to_rp = bf_get(
7377 lpfc_mbx_set_feature_UERP,
7378 &mboxq->u.mqe.un.set_feature);
7382 if (phba->cfg_enable_mds_diags && phba->mds_diags_support) {
7383 /* Enable MDS Diagnostics only if the SLI Port supports it */
7384 lpfc_set_features(phba, mboxq, LPFC_SET_MDS_DIAGS);
7385 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7386 if (rc != MBX_SUCCESS)
7387 phba->mds_diags_support = 0;
7391 * Discover the port's supported feature set and match it against the
7394 lpfc_request_features(phba, mboxq);
7395 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7402 * The port must support FCP initiator mode as this is the
7403 * only mode running in the host.
7405 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
7406 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7407 "0378 No support for fcpi mode.\n");
7411 /* Performance Hints are ONLY for FCoE */
7412 if (phba->hba_flag & HBA_FCOE_MODE) {
7413 if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh, &mqe->un.req_ftrs))
7414 phba->sli3_options |= LPFC_SLI4_PERFH_ENABLED;
7416 phba->sli3_options &= ~LPFC_SLI4_PERFH_ENABLED;
7420 * If the port cannot support the host's requested features
7421 * then turn off the global config parameters to disable the
7422 * feature in the driver. This is not a fatal error.
7424 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
7425 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))) {
7426 phba->cfg_enable_bg = 0;
7427 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
7432 if (phba->max_vpi && phba->cfg_enable_npiv &&
7433 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
7437 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7438 "0379 Feature Mismatch Data: x%08x %08x "
7439 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
7440 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
7441 phba->cfg_enable_npiv, phba->max_vpi);
7442 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
7443 phba->cfg_enable_bg = 0;
7444 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
7445 phba->cfg_enable_npiv = 0;
7448 /* These SLI3 features are assumed in SLI4 */
7449 spin_lock_irq(&phba->hbalock);
7450 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
7451 spin_unlock_irq(&phba->hbalock);
7454 * Allocate all resources (xri,rpi,vpi,vfi) now. Subsequent
7455 * calls depends on these resources to complete port setup.
7457 rc = lpfc_sli4_alloc_resource_identifiers(phba);
7459 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7460 "2920 Failed to alloc Resource IDs "
7465 lpfc_set_host_data(phba, mboxq);
7467 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7469 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7470 "2134 Failed to set host os driver version %x",
7474 /* Read the port's service parameters. */
7475 rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
7477 phba->link_state = LPFC_HBA_ERROR;
7482 mboxq->vport = vport;
7483 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7484 mp = (struct lpfc_dmabuf *)mboxq->ctx_buf;
7485 if (rc == MBX_SUCCESS) {
7486 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
7491 * This memory was allocated by the lpfc_read_sparam routine. Release
7492 * it to the mbuf pool.
7494 lpfc_mbuf_free(phba, mp->virt, mp->phys);
7496 mboxq->ctx_buf = NULL;
7498 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7499 "0382 READ_SPARAM command failed "
7500 "status %d, mbxStatus x%x\n",
7501 rc, bf_get(lpfc_mqe_status, mqe));
7502 phba->link_state = LPFC_HBA_ERROR;
7507 lpfc_update_vport_wwn(vport);
7509 /* Update the fc_host data structures with new wwn. */
7510 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
7511 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
7513 /* Create all the SLI4 queues */
7514 rc = lpfc_sli4_queue_create(phba);
7516 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7517 "3089 Failed to allocate queues\n");
7521 /* Set up all the queues to the device */
7522 rc = lpfc_sli4_queue_setup(phba);
7524 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7525 "0381 Error %d during queue setup.\n ", rc);
7526 goto out_stop_timers;
7528 /* Initialize the driver internal SLI layer lists. */
7529 lpfc_sli4_setup(phba);
7530 lpfc_sli4_queue_init(phba);
7532 /* update host els xri-sgl sizes and mappings */
7533 rc = lpfc_sli4_els_sgl_update(phba);
7535 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7536 "1400 Failed to update xri-sgl size and "
7537 "mapping: %d\n", rc);
7538 goto out_destroy_queue;
7541 /* register the els sgl pool to the port */
7542 rc = lpfc_sli4_repost_sgl_list(phba, &phba->sli4_hba.lpfc_els_sgl_list,
7543 phba->sli4_hba.els_xri_cnt);
7544 if (unlikely(rc < 0)) {
7545 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7546 "0582 Error %d during els sgl post "
7549 goto out_destroy_queue;
7551 phba->sli4_hba.els_xri_cnt = rc;
7553 if (phba->nvmet_support) {
7554 /* update host nvmet xri-sgl sizes and mappings */
7555 rc = lpfc_sli4_nvmet_sgl_update(phba);
7557 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7558 "6308 Failed to update nvmet-sgl size "
7559 "and mapping: %d\n", rc);
7560 goto out_destroy_queue;
7563 /* register the nvmet sgl pool to the port */
7564 rc = lpfc_sli4_repost_sgl_list(
7566 &phba->sli4_hba.lpfc_nvmet_sgl_list,
7567 phba->sli4_hba.nvmet_xri_cnt);
7568 if (unlikely(rc < 0)) {
7569 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7570 "3117 Error %d during nvmet "
7573 goto out_destroy_queue;
7575 phba->sli4_hba.nvmet_xri_cnt = rc;
7577 cnt = phba->cfg_iocb_cnt * 1024;
7578 /* We need 1 iocbq for every SGL, for IO processing */
7579 cnt += phba->sli4_hba.nvmet_xri_cnt;
7581 /* update host common xri-sgl sizes and mappings */
7582 rc = lpfc_sli4_io_sgl_update(phba);
7584 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7585 "6082 Failed to update nvme-sgl size "
7586 "and mapping: %d\n", rc);
7587 goto out_destroy_queue;
7590 /* register the allocated common sgl pool to the port */
7591 rc = lpfc_sli4_repost_io_sgl_list(phba);
7593 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7594 "6116 Error %d during nvme sgl post "
7596 /* Some NVME buffers were moved to abort nvme list */
7597 /* A pci function reset will repost them */
7599 goto out_destroy_queue;
7601 cnt = phba->cfg_iocb_cnt * 1024;
7604 if (!phba->sli.iocbq_lookup) {
7605 /* Initialize and populate the iocb list per host */
7606 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7607 "2821 initialize iocb list %d total %d\n",
7608 phba->cfg_iocb_cnt, cnt);
7609 rc = lpfc_init_iocb_list(phba, cnt);
7611 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7612 "1413 Failed to init iocb list.\n");
7613 goto out_destroy_queue;
7617 if (phba->nvmet_support)
7618 lpfc_nvmet_create_targetport(phba);
7620 if (phba->nvmet_support && phba->cfg_nvmet_mrq) {
7621 /* Post initial buffers to all RQs created */
7622 for (i = 0; i < phba->cfg_nvmet_mrq; i++) {
7623 rqbp = phba->sli4_hba.nvmet_mrq_hdr[i]->rqbp;
7624 INIT_LIST_HEAD(&rqbp->rqb_buffer_list);
7625 rqbp->rqb_alloc_buffer = lpfc_sli4_nvmet_alloc;
7626 rqbp->rqb_free_buffer = lpfc_sli4_nvmet_free;
7627 rqbp->entry_count = LPFC_NVMET_RQE_DEF_COUNT;
7628 rqbp->buffer_count = 0;
7630 lpfc_post_rq_buffer(
7631 phba, phba->sli4_hba.nvmet_mrq_hdr[i],
7632 phba->sli4_hba.nvmet_mrq_data[i],
7633 phba->cfg_nvmet_mrq_post, i);
7637 /* Post the rpi header region to the device. */
7638 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
7640 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7641 "0393 Error %d during rpi post operation\n",
7644 goto out_destroy_queue;
7646 lpfc_sli4_node_prep(phba);
7648 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
7649 if ((phba->nvmet_support == 0) || (phba->cfg_nvmet_mrq == 1)) {
7651 * The FC Port needs to register FCFI (index 0)
7653 lpfc_reg_fcfi(phba, mboxq);
7654 mboxq->vport = phba->pport;
7655 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7656 if (rc != MBX_SUCCESS)
7657 goto out_unset_queue;
7659 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi,
7660 &mboxq->u.mqe.un.reg_fcfi);
7662 /* We are a NVME Target mode with MRQ > 1 */
7664 /* First register the FCFI */
7665 lpfc_reg_fcfi_mrq(phba, mboxq, 0);
7666 mboxq->vport = phba->pport;
7667 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7668 if (rc != MBX_SUCCESS)
7669 goto out_unset_queue;
7671 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_mrq_fcfi,
7672 &mboxq->u.mqe.un.reg_fcfi_mrq);
7674 /* Next register the MRQs */
7675 lpfc_reg_fcfi_mrq(phba, mboxq, 1);
7676 mboxq->vport = phba->pport;
7677 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7678 if (rc != MBX_SUCCESS)
7679 goto out_unset_queue;
7682 /* Check if the port is configured to be disabled */
7683 lpfc_sli_read_link_ste(phba);
7686 /* Don't post more new bufs if repost already recovered
7689 if (phba->nvmet_support == 0) {
7690 if (phba->sli4_hba.io_xri_cnt == 0) {
7691 len = lpfc_new_io_buf(
7692 phba, phba->sli4_hba.io_xri_max);
7695 goto out_unset_queue;
7698 if (phba->cfg_xri_rebalancing)
7699 lpfc_create_multixri_pools(phba);
7702 phba->cfg_xri_rebalancing = 0;
7705 /* Allow asynchronous mailbox command to go through */
7706 spin_lock_irq(&phba->hbalock);
7707 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7708 spin_unlock_irq(&phba->hbalock);
7710 /* Post receive buffers to the device */
7711 lpfc_sli4_rb_setup(phba);
7713 /* Reset HBA FCF states after HBA reset */
7714 phba->fcf.fcf_flag = 0;
7715 phba->fcf.current_rec.flag = 0;
7717 /* Start the ELS watchdog timer */
7718 mod_timer(&vport->els_tmofunc,
7719 jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov * 2)));
7721 /* Start heart beat timer */
7722 mod_timer(&phba->hb_tmofunc,
7723 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
7724 phba->hb_outstanding = 0;
7725 phba->last_completion_time = jiffies;
7727 /* start eq_delay heartbeat */
7728 if (phba->cfg_auto_imax)
7729 queue_delayed_work(phba->wq, &phba->eq_delay_work,
7730 msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
7732 /* Start error attention (ERATT) polling timer */
7733 mod_timer(&phba->eratt_poll,
7734 jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
7736 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
7737 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
7738 rc = pci_enable_pcie_error_reporting(phba->pcidev);
7740 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7741 "2829 This device supports "
7742 "Advanced Error Reporting (AER)\n");
7743 spin_lock_irq(&phba->hbalock);
7744 phba->hba_flag |= HBA_AER_ENABLED;
7745 spin_unlock_irq(&phba->hbalock);
7747 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7748 "2830 This device does not support "
7749 "Advanced Error Reporting (AER)\n");
7750 phba->cfg_aer_support = 0;
7756 * The port is ready, set the host's link state to LINK_DOWN
7757 * in preparation for link interrupts.
7759 spin_lock_irq(&phba->hbalock);
7760 phba->link_state = LPFC_LINK_DOWN;
7762 /* Check if physical ports are trunked */
7763 if (bf_get(lpfc_conf_trunk_port0, &phba->sli4_hba))
7764 phba->trunk_link.link0.state = LPFC_LINK_DOWN;
7765 if (bf_get(lpfc_conf_trunk_port1, &phba->sli4_hba))
7766 phba->trunk_link.link1.state = LPFC_LINK_DOWN;
7767 if (bf_get(lpfc_conf_trunk_port2, &phba->sli4_hba))
7768 phba->trunk_link.link2.state = LPFC_LINK_DOWN;
7769 if (bf_get(lpfc_conf_trunk_port3, &phba->sli4_hba))
7770 phba->trunk_link.link3.state = LPFC_LINK_DOWN;
7771 spin_unlock_irq(&phba->hbalock);
7773 /* Arm the CQs and then EQs on device */
7774 lpfc_sli4_arm_cqeq_intr(phba);
7776 /* Indicate device interrupt mode */
7777 phba->sli4_hba.intr_enable = 1;
7779 if (!(phba->hba_flag & HBA_FCOE_MODE) &&
7780 (phba->hba_flag & LINK_DISABLED)) {
7781 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
7782 "3103 Adapter Link is disabled.\n");
7783 lpfc_down_link(phba, mboxq);
7784 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7785 if (rc != MBX_SUCCESS) {
7786 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
7787 "3104 Adapter failed to issue "
7788 "DOWN_LINK mbox cmd, rc:x%x\n", rc);
7789 goto out_io_buff_free;
7791 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
7792 /* don't perform init_link on SLI4 FC port loopback test */
7793 if (!(phba->link_flag & LS_LOOPBACK_MODE)) {
7794 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
7796 goto out_io_buff_free;
7799 mempool_free(mboxq, phba->mbox_mem_pool);
7802 /* Free allocated IO Buffers */
7805 /* Unset all the queues set up in this routine when error out */
7806 lpfc_sli4_queue_unset(phba);
7808 lpfc_free_iocb_list(phba);
7809 lpfc_sli4_queue_destroy(phba);
7811 lpfc_stop_hba_timers(phba);
7813 mempool_free(mboxq, phba->mbox_mem_pool);
7818 * lpfc_mbox_timeout - Timeout call back function for mbox timer
7819 * @ptr: context object - pointer to hba structure.
7821 * This is the callback function for mailbox timer. The mailbox
7822 * timer is armed when a new mailbox command is issued and the timer
7823 * is deleted when the mailbox complete. The function is called by
7824 * the kernel timer code when a mailbox does not complete within
7825 * expected time. This function wakes up the worker thread to
7826 * process the mailbox timeout and returns. All the processing is
7827 * done by the worker thread function lpfc_mbox_timeout_handler.
7830 lpfc_mbox_timeout(struct timer_list *t)
7832 struct lpfc_hba *phba = from_timer(phba, t, sli.mbox_tmo);
7833 unsigned long iflag;
7834 uint32_t tmo_posted;
7836 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
7837 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
7839 phba->pport->work_port_events |= WORKER_MBOX_TMO;
7840 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
7843 lpfc_worker_wake_up(phba);
7848 * lpfc_sli4_mbox_completions_pending - check to see if any mailbox completions
7850 * @phba: Pointer to HBA context object.
7852 * This function checks if any mailbox completions are present on the mailbox
7856 lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba)
7860 struct lpfc_queue *mcq;
7861 struct lpfc_mcqe *mcqe;
7862 bool pending_completions = false;
7865 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
7868 /* Check for completions on mailbox completion queue */
7870 mcq = phba->sli4_hba.mbx_cq;
7871 idx = mcq->hba_index;
7872 qe_valid = mcq->qe_valid;
7873 while (bf_get_le32(lpfc_cqe_valid,
7874 (struct lpfc_cqe *)lpfc_sli4_qe(mcq, idx)) == qe_valid) {
7875 mcqe = (struct lpfc_mcqe *)(lpfc_sli4_qe(mcq, idx));
7876 if (bf_get_le32(lpfc_trailer_completed, mcqe) &&
7877 (!bf_get_le32(lpfc_trailer_async, mcqe))) {
7878 pending_completions = true;
7881 idx = (idx + 1) % mcq->entry_count;
7882 if (mcq->hba_index == idx)
7885 /* if the index wrapped around, toggle the valid bit */
7886 if (phba->sli4_hba.pc_sli4_params.cqav && !idx)
7887 qe_valid = (qe_valid) ? 0 : 1;
7889 return pending_completions;
7894 * lpfc_sli4_process_missed_mbox_completions - process mbox completions
7896 * @phba: Pointer to HBA context object.
7898 * For sli4, it is possible to miss an interrupt. As such mbox completions
7899 * maybe missed causing erroneous mailbox timeouts to occur. This function
7900 * checks to see if mbox completions are on the mailbox completion queue
7901 * and will process all the completions associated with the eq for the
7902 * mailbox completion queue.
7905 lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba)
7907 struct lpfc_sli4_hba *sli4_hba = &phba->sli4_hba;
7909 struct lpfc_queue *fpeq = NULL;
7910 struct lpfc_queue *eq;
7913 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
7916 /* Find the EQ associated with the mbox CQ */
7917 if (sli4_hba->hdwq) {
7918 for (eqidx = 0; eqidx < phba->cfg_irq_chann; eqidx++) {
7919 eq = phba->sli4_hba.hba_eq_hdl[eqidx].eq;
7920 if (eq->queue_id == sli4_hba->mbx_cq->assoc_qid) {
7929 /* Turn off interrupts from this EQ */
7931 sli4_hba->sli4_eq_clr_intr(fpeq);
7933 /* Check to see if a mbox completion is pending */
7935 mbox_pending = lpfc_sli4_mbox_completions_pending(phba);
7938 * If a mbox completion is pending, process all the events on EQ
7939 * associated with the mbox completion queue (this could include
7940 * mailbox commands, async events, els commands, receive queue data
7945 /* process and rearm the EQ */
7946 lpfc_sli4_process_eq(phba, fpeq);
7948 /* Always clear and re-arm the EQ */
7949 sli4_hba->sli4_write_eq_db(phba, fpeq, 0, LPFC_QUEUE_REARM);
7951 return mbox_pending;
7956 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
7957 * @phba: Pointer to HBA context object.
7959 * This function is called from worker thread when a mailbox command times out.
7960 * The caller is not required to hold any locks. This function will reset the
7961 * HBA and recover all the pending commands.
7964 lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
7966 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
7967 MAILBOX_t *mb = NULL;
7969 struct lpfc_sli *psli = &phba->sli;
7971 /* If the mailbox completed, process the completion and return */
7972 if (lpfc_sli4_process_missed_mbox_completions(phba))
7977 /* Check the pmbox pointer first. There is a race condition
7978 * between the mbox timeout handler getting executed in the
7979 * worklist and the mailbox actually completing. When this
7980 * race condition occurs, the mbox_active will be NULL.
7982 spin_lock_irq(&phba->hbalock);
7983 if (pmbox == NULL) {
7984 lpfc_printf_log(phba, KERN_WARNING,
7986 "0353 Active Mailbox cleared - mailbox timeout "
7988 spin_unlock_irq(&phba->hbalock);
7992 /* Mbox cmd <mbxCommand> timeout */
7993 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7994 "0310 Mailbox command x%x timeout Data: x%x x%x x%px\n",
7996 phba->pport->port_state,
7998 phba->sli.mbox_active);
7999 spin_unlock_irq(&phba->hbalock);
8001 /* Setting state unknown so lpfc_sli_abort_iocb_ring
8002 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
8003 * it to fail all outstanding SCSI IO.
8005 spin_lock_irq(&phba->pport->work_port_lock);
8006 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
8007 spin_unlock_irq(&phba->pport->work_port_lock);
8008 spin_lock_irq(&phba->hbalock);
8009 phba->link_state = LPFC_LINK_UNKNOWN;
8010 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
8011 spin_unlock_irq(&phba->hbalock);
8013 lpfc_sli_abort_fcp_rings(phba);
8015 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8016 "0345 Resetting board due to mailbox timeout\n");
8018 /* Reset the HBA device */
8019 lpfc_reset_hba(phba);
8023 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
8024 * @phba: Pointer to HBA context object.
8025 * @pmbox: Pointer to mailbox object.
8026 * @flag: Flag indicating how the mailbox need to be processed.
8028 * This function is called by discovery code and HBA management code
8029 * to submit a mailbox command to firmware with SLI-3 interface spec. This
8030 * function gets the hbalock to protect the data structures.
8031 * The mailbox command can be submitted in polling mode, in which case
8032 * this function will wait in a polling loop for the completion of the
8034 * If the mailbox is submitted in no_wait mode (not polling) the
8035 * function will submit the command and returns immediately without waiting
8036 * for the mailbox completion. The no_wait is supported only when HBA
8037 * is in SLI2/SLI3 mode - interrupts are enabled.
8038 * The SLI interface allows only one mailbox pending at a time. If the
8039 * mailbox is issued in polling mode and there is already a mailbox
8040 * pending, then the function will return an error. If the mailbox is issued
8041 * in NO_WAIT mode and there is a mailbox pending already, the function
8042 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
8043 * The sli layer owns the mailbox object until the completion of mailbox
8044 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
8045 * return codes the caller owns the mailbox command after the return of
8049 lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
8053 struct lpfc_sli *psli = &phba->sli;
8054 uint32_t status, evtctr;
8055 uint32_t ha_copy, hc_copy;
8057 unsigned long timeout;
8058 unsigned long drvr_flag = 0;
8059 uint32_t word0, ldata;
8060 void __iomem *to_slim;
8061 int processing_queue = 0;
8063 spin_lock_irqsave(&phba->hbalock, drvr_flag);
8065 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8066 /* processing mbox queue from intr_handler */
8067 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
8068 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8071 processing_queue = 1;
8072 pmbox = lpfc_mbox_get(phba);
8074 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8079 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
8080 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
8082 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8083 lpfc_printf_log(phba, KERN_ERR,
8084 LOG_MBOX | LOG_VPORT,
8085 "1806 Mbox x%x failed. No vport\n",
8086 pmbox->u.mb.mbxCommand);
8088 goto out_not_finished;
8092 /* If the PCI channel is in offline state, do not post mbox. */
8093 if (unlikely(pci_channel_offline(phba->pcidev))) {
8094 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8095 goto out_not_finished;
8098 /* If HBA has a deferred error attention, fail the iocb. */
8099 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
8100 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8101 goto out_not_finished;
8107 status = MBX_SUCCESS;
8109 if (phba->link_state == LPFC_HBA_ERROR) {
8110 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8112 /* Mbox command <mbxCommand> cannot issue */
8113 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8114 "(%d):0311 Mailbox command x%x cannot "
8115 "issue Data: x%x x%x\n",
8116 pmbox->vport ? pmbox->vport->vpi : 0,
8117 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
8118 goto out_not_finished;
8121 if (mbx->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT) {
8122 if (lpfc_readl(phba->HCregaddr, &hc_copy) ||
8123 !(hc_copy & HC_MBINT_ENA)) {
8124 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8125 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8126 "(%d):2528 Mailbox command x%x cannot "
8127 "issue Data: x%x x%x\n",
8128 pmbox->vport ? pmbox->vport->vpi : 0,
8129 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
8130 goto out_not_finished;
8134 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8135 /* Polling for a mbox command when another one is already active
8136 * is not allowed in SLI. Also, the driver must have established
8137 * SLI2 mode to queue and process multiple mbox commands.
8140 if (flag & MBX_POLL) {
8141 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8143 /* Mbox command <mbxCommand> cannot issue */
8144 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8145 "(%d):2529 Mailbox command x%x "
8146 "cannot issue Data: x%x x%x\n",
8147 pmbox->vport ? pmbox->vport->vpi : 0,
8148 pmbox->u.mb.mbxCommand,
8149 psli->sli_flag, flag);
8150 goto out_not_finished;
8153 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
8154 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8155 /* Mbox command <mbxCommand> cannot issue */
8156 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8157 "(%d):2530 Mailbox command x%x "
8158 "cannot issue Data: x%x x%x\n",
8159 pmbox->vport ? pmbox->vport->vpi : 0,
8160 pmbox->u.mb.mbxCommand,
8161 psli->sli_flag, flag);
8162 goto out_not_finished;
8165 /* Another mailbox command is still being processed, queue this
8166 * command to be processed later.
8168 lpfc_mbox_put(phba, pmbox);
8170 /* Mbox cmd issue - BUSY */
8171 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8172 "(%d):0308 Mbox cmd issue - BUSY Data: "
8173 "x%x x%x x%x x%x\n",
8174 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
8176 phba->pport ? phba->pport->port_state : 0xff,
8177 psli->sli_flag, flag);
8179 psli->slistat.mbox_busy++;
8180 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8183 lpfc_debugfs_disc_trc(pmbox->vport,
8184 LPFC_DISC_TRC_MBOX_VPORT,
8185 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
8186 (uint32_t)mbx->mbxCommand,
8187 mbx->un.varWords[0], mbx->un.varWords[1]);
8190 lpfc_debugfs_disc_trc(phba->pport,
8192 "MBOX Bsy: cmd:x%x mb:x%x x%x",
8193 (uint32_t)mbx->mbxCommand,
8194 mbx->un.varWords[0], mbx->un.varWords[1]);
8200 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
8202 /* If we are not polling, we MUST be in SLI2 mode */
8203 if (flag != MBX_POLL) {
8204 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
8205 (mbx->mbxCommand != MBX_KILL_BOARD)) {
8206 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8207 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8208 /* Mbox command <mbxCommand> cannot issue */
8209 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8210 "(%d):2531 Mailbox command x%x "
8211 "cannot issue Data: x%x x%x\n",
8212 pmbox->vport ? pmbox->vport->vpi : 0,
8213 pmbox->u.mb.mbxCommand,
8214 psli->sli_flag, flag);
8215 goto out_not_finished;
8217 /* timeout active mbox command */
8218 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
8220 mod_timer(&psli->mbox_tmo, jiffies + timeout);
8223 /* Mailbox cmd <cmd> issue */
8224 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8225 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
8227 pmbox->vport ? pmbox->vport->vpi : 0,
8229 phba->pport ? phba->pport->port_state : 0xff,
8230 psli->sli_flag, flag);
8232 if (mbx->mbxCommand != MBX_HEARTBEAT) {
8234 lpfc_debugfs_disc_trc(pmbox->vport,
8235 LPFC_DISC_TRC_MBOX_VPORT,
8236 "MBOX Send vport: cmd:x%x mb:x%x x%x",
8237 (uint32_t)mbx->mbxCommand,
8238 mbx->un.varWords[0], mbx->un.varWords[1]);
8241 lpfc_debugfs_disc_trc(phba->pport,
8243 "MBOX Send: cmd:x%x mb:x%x x%x",
8244 (uint32_t)mbx->mbxCommand,
8245 mbx->un.varWords[0], mbx->un.varWords[1]);
8249 psli->slistat.mbox_cmd++;
8250 evtctr = psli->slistat.mbox_event;
8252 /* next set own bit for the adapter and copy over command word */
8253 mbx->mbxOwner = OWN_CHIP;
8255 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
8256 /* Populate mbox extension offset word. */
8257 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) {
8258 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
8259 = (uint8_t *)phba->mbox_ext
8260 - (uint8_t *)phba->mbox;
8263 /* Copy the mailbox extension data */
8264 if (pmbox->in_ext_byte_len && pmbox->ctx_buf) {
8265 lpfc_sli_pcimem_bcopy(pmbox->ctx_buf,
8266 (uint8_t *)phba->mbox_ext,
8267 pmbox->in_ext_byte_len);
8269 /* Copy command data to host SLIM area */
8270 lpfc_sli_pcimem_bcopy(mbx, phba->mbox, MAILBOX_CMD_SIZE);
8272 /* Populate mbox extension offset word. */
8273 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len)
8274 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
8275 = MAILBOX_HBA_EXT_OFFSET;
8277 /* Copy the mailbox extension data */
8278 if (pmbox->in_ext_byte_len && pmbox->ctx_buf)
8279 lpfc_memcpy_to_slim(phba->MBslimaddr +
8280 MAILBOX_HBA_EXT_OFFSET,
8281 pmbox->ctx_buf, pmbox->in_ext_byte_len);
8283 if (mbx->mbxCommand == MBX_CONFIG_PORT)
8284 /* copy command data into host mbox for cmpl */
8285 lpfc_sli_pcimem_bcopy(mbx, phba->mbox,
8288 /* First copy mbox command data to HBA SLIM, skip past first
8290 to_slim = phba->MBslimaddr + sizeof (uint32_t);
8291 lpfc_memcpy_to_slim(to_slim, &mbx->un.varWords[0],
8292 MAILBOX_CMD_SIZE - sizeof (uint32_t));
8294 /* Next copy over first word, with mbxOwner set */
8295 ldata = *((uint32_t *)mbx);
8296 to_slim = phba->MBslimaddr;
8297 writel(ldata, to_slim);
8298 readl(to_slim); /* flush */
8300 if (mbx->mbxCommand == MBX_CONFIG_PORT)
8301 /* switch over to host mailbox */
8302 psli->sli_flag |= LPFC_SLI_ACTIVE;
8309 /* Set up reference to mailbox command */
8310 psli->mbox_active = pmbox;
8311 /* Interrupt board to do it */
8312 writel(CA_MBATT, phba->CAregaddr);
8313 readl(phba->CAregaddr); /* flush */
8314 /* Don't wait for it to finish, just return */
8318 /* Set up null reference to mailbox command */
8319 psli->mbox_active = NULL;
8320 /* Interrupt board to do it */
8321 writel(CA_MBATT, phba->CAregaddr);
8322 readl(phba->CAregaddr); /* flush */
8324 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
8325 /* First read mbox status word */
8326 word0 = *((uint32_t *)phba->mbox);
8327 word0 = le32_to_cpu(word0);
8329 /* First read mbox status word */
8330 if (lpfc_readl(phba->MBslimaddr, &word0)) {
8331 spin_unlock_irqrestore(&phba->hbalock,
8333 goto out_not_finished;
8337 /* Read the HBA Host Attention Register */
8338 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
8339 spin_unlock_irqrestore(&phba->hbalock,
8341 goto out_not_finished;
8343 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
8346 /* Wait for command to complete */
8347 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
8348 (!(ha_copy & HA_MBATT) &&
8349 (phba->link_state > LPFC_WARM_START))) {
8350 if (time_after(jiffies, timeout)) {
8351 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8352 spin_unlock_irqrestore(&phba->hbalock,
8354 goto out_not_finished;
8357 /* Check if we took a mbox interrupt while we were
8359 if (((word0 & OWN_CHIP) != OWN_CHIP)
8360 && (evtctr != psli->slistat.mbox_event))
8364 spin_unlock_irqrestore(&phba->hbalock,
8367 spin_lock_irqsave(&phba->hbalock, drvr_flag);
8370 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
8371 /* First copy command data */
8372 word0 = *((uint32_t *)phba->mbox);
8373 word0 = le32_to_cpu(word0);
8374 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
8377 /* Check real SLIM for any errors */
8378 slimword0 = readl(phba->MBslimaddr);
8379 slimmb = (MAILBOX_t *) & slimword0;
8380 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
8381 && slimmb->mbxStatus) {
8388 /* First copy command data */
8389 word0 = readl(phba->MBslimaddr);
8391 /* Read the HBA Host Attention Register */
8392 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
8393 spin_unlock_irqrestore(&phba->hbalock,
8395 goto out_not_finished;
8399 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
8400 /* copy results back to user */
8401 lpfc_sli_pcimem_bcopy(phba->mbox, mbx,
8403 /* Copy the mailbox extension data */
8404 if (pmbox->out_ext_byte_len && pmbox->ctx_buf) {
8405 lpfc_sli_pcimem_bcopy(phba->mbox_ext,
8407 pmbox->out_ext_byte_len);
8410 /* First copy command data */
8411 lpfc_memcpy_from_slim(mbx, phba->MBslimaddr,
8413 /* Copy the mailbox extension data */
8414 if (pmbox->out_ext_byte_len && pmbox->ctx_buf) {
8415 lpfc_memcpy_from_slim(
8418 MAILBOX_HBA_EXT_OFFSET,
8419 pmbox->out_ext_byte_len);
8423 writel(HA_MBATT, phba->HAregaddr);
8424 readl(phba->HAregaddr); /* flush */
8426 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8427 status = mbx->mbxStatus;
8430 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8434 if (processing_queue) {
8435 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
8436 lpfc_mbox_cmpl_put(phba, pmbox);
8438 return MBX_NOT_FINISHED;
8442 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
8443 * @phba: Pointer to HBA context object.
8445 * The function blocks the posting of SLI4 asynchronous mailbox commands from
8446 * the driver internal pending mailbox queue. It will then try to wait out the
8447 * possible outstanding mailbox command before return.
8450 * 0 - the outstanding mailbox command completed; otherwise, the wait for
8451 * the outstanding mailbox command timed out.
8454 lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
8456 struct lpfc_sli *psli = &phba->sli;
8458 unsigned long timeout = 0;
8460 /* Mark the asynchronous mailbox command posting as blocked */
8461 spin_lock_irq(&phba->hbalock);
8462 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
8463 /* Determine how long we might wait for the active mailbox
8464 * command to be gracefully completed by firmware.
8466 if (phba->sli.mbox_active)
8467 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
8468 phba->sli.mbox_active) *
8470 spin_unlock_irq(&phba->hbalock);
8472 /* Make sure the mailbox is really active */
8474 lpfc_sli4_process_missed_mbox_completions(phba);
8476 /* Wait for the outstnading mailbox command to complete */
8477 while (phba->sli.mbox_active) {
8478 /* Check active mailbox complete status every 2ms */
8480 if (time_after(jiffies, timeout)) {
8481 /* Timeout, marked the outstanding cmd not complete */
8487 /* Can not cleanly block async mailbox command, fails it */
8489 spin_lock_irq(&phba->hbalock);
8490 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
8491 spin_unlock_irq(&phba->hbalock);
8497 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
8498 * @phba: Pointer to HBA context object.
8500 * The function unblocks and resume posting of SLI4 asynchronous mailbox
8501 * commands from the driver internal pending mailbox queue. It makes sure
8502 * that there is no outstanding mailbox command before resuming posting
8503 * asynchronous mailbox commands. If, for any reason, there is outstanding
8504 * mailbox command, it will try to wait it out before resuming asynchronous
8505 * mailbox command posting.
8508 lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
8510 struct lpfc_sli *psli = &phba->sli;
8512 spin_lock_irq(&phba->hbalock);
8513 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
8514 /* Asynchronous mailbox posting is not blocked, do nothing */
8515 spin_unlock_irq(&phba->hbalock);
8519 /* Outstanding synchronous mailbox command is guaranteed to be done,
8520 * successful or timeout, after timing-out the outstanding mailbox
8521 * command shall always be removed, so just unblock posting async
8522 * mailbox command and resume
8524 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
8525 spin_unlock_irq(&phba->hbalock);
8527 /* wake up worker thread to post asynchronlous mailbox command */
8528 lpfc_worker_wake_up(phba);
8532 * lpfc_sli4_wait_bmbx_ready - Wait for bootstrap mailbox register ready
8533 * @phba: Pointer to HBA context object.
8534 * @mboxq: Pointer to mailbox object.
8536 * The function waits for the bootstrap mailbox register ready bit from
8537 * port for twice the regular mailbox command timeout value.
8539 * 0 - no timeout on waiting for bootstrap mailbox register ready.
8540 * MBXERR_ERROR - wait for bootstrap mailbox register timed out.
8543 lpfc_sli4_wait_bmbx_ready(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8546 unsigned long timeout;
8547 struct lpfc_register bmbx_reg;
8549 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mboxq)
8553 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
8554 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
8558 if (time_after(jiffies, timeout))
8559 return MBXERR_ERROR;
8560 } while (!db_ready);
8566 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
8567 * @phba: Pointer to HBA context object.
8568 * @mboxq: Pointer to mailbox object.
8570 * The function posts a mailbox to the port. The mailbox is expected
8571 * to be comletely filled in and ready for the port to operate on it.
8572 * This routine executes a synchronous completion operation on the
8573 * mailbox by polling for its completion.
8575 * The caller must not be holding any locks when calling this routine.
8578 * MBX_SUCCESS - mailbox posted successfully
8579 * Any of the MBX error values.
8582 lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8584 int rc = MBX_SUCCESS;
8585 unsigned long iflag;
8586 uint32_t mcqe_status;
8588 struct lpfc_sli *psli = &phba->sli;
8589 struct lpfc_mqe *mb = &mboxq->u.mqe;
8590 struct lpfc_bmbx_create *mbox_rgn;
8591 struct dma_address *dma_address;
8594 * Only one mailbox can be active to the bootstrap mailbox region
8595 * at a time and there is no queueing provided.
8597 spin_lock_irqsave(&phba->hbalock, iflag);
8598 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8599 spin_unlock_irqrestore(&phba->hbalock, iflag);
8600 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8601 "(%d):2532 Mailbox command x%x (x%x/x%x) "
8602 "cannot issue Data: x%x x%x\n",
8603 mboxq->vport ? mboxq->vport->vpi : 0,
8604 mboxq->u.mb.mbxCommand,
8605 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8606 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8607 psli->sli_flag, MBX_POLL);
8608 return MBXERR_ERROR;
8610 /* The server grabs the token and owns it until release */
8611 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
8612 phba->sli.mbox_active = mboxq;
8613 spin_unlock_irqrestore(&phba->hbalock, iflag);
8615 /* wait for bootstrap mbox register for readyness */
8616 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
8620 * Initialize the bootstrap memory region to avoid stale data areas
8621 * in the mailbox post. Then copy the caller's mailbox contents to
8622 * the bmbx mailbox region.
8624 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
8625 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
8626 lpfc_sli4_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
8627 sizeof(struct lpfc_mqe));
8629 /* Post the high mailbox dma address to the port and wait for ready. */
8630 dma_address = &phba->sli4_hba.bmbx.dma_address;
8631 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
8633 /* wait for bootstrap mbox register for hi-address write done */
8634 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
8638 /* Post the low mailbox dma address to the port. */
8639 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
8641 /* wait for bootstrap mbox register for low address write done */
8642 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
8647 * Read the CQ to ensure the mailbox has completed.
8648 * If so, update the mailbox status so that the upper layers
8649 * can complete the request normally.
8651 lpfc_sli4_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
8652 sizeof(struct lpfc_mqe));
8653 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
8654 lpfc_sli4_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
8655 sizeof(struct lpfc_mcqe));
8656 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
8658 * When the CQE status indicates a failure and the mailbox status
8659 * indicates success then copy the CQE status into the mailbox status
8660 * (and prefix it with x4000).
8662 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
8663 if (bf_get(lpfc_mqe_status, mb) == MBX_SUCCESS)
8664 bf_set(lpfc_mqe_status, mb,
8665 (LPFC_MBX_ERROR_RANGE | mcqe_status));
8668 lpfc_sli4_swap_str(phba, mboxq);
8670 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8671 "(%d):0356 Mailbox cmd x%x (x%x/x%x) Status x%x "
8672 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
8673 " x%x x%x CQ: x%x x%x x%x x%x\n",
8674 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
8675 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8676 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8677 bf_get(lpfc_mqe_status, mb),
8678 mb->un.mb_words[0], mb->un.mb_words[1],
8679 mb->un.mb_words[2], mb->un.mb_words[3],
8680 mb->un.mb_words[4], mb->un.mb_words[5],
8681 mb->un.mb_words[6], mb->un.mb_words[7],
8682 mb->un.mb_words[8], mb->un.mb_words[9],
8683 mb->un.mb_words[10], mb->un.mb_words[11],
8684 mb->un.mb_words[12], mboxq->mcqe.word0,
8685 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
8686 mboxq->mcqe.trailer);
8688 /* We are holding the token, no needed for lock when release */
8689 spin_lock_irqsave(&phba->hbalock, iflag);
8690 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8691 phba->sli.mbox_active = NULL;
8692 spin_unlock_irqrestore(&phba->hbalock, iflag);
8697 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
8698 * @phba: Pointer to HBA context object.
8699 * @pmbox: Pointer to mailbox object.
8700 * @flag: Flag indicating how the mailbox need to be processed.
8702 * This function is called by discovery code and HBA management code to submit
8703 * a mailbox command to firmware with SLI-4 interface spec.
8705 * Return codes the caller owns the mailbox command after the return of the
8709 lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
8712 struct lpfc_sli *psli = &phba->sli;
8713 unsigned long iflags;
8716 /* dump from issue mailbox command if setup */
8717 lpfc_idiag_mbxacc_dump_issue_mbox(phba, &mboxq->u.mb);
8719 rc = lpfc_mbox_dev_check(phba);
8721 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8722 "(%d):2544 Mailbox command x%x (x%x/x%x) "
8723 "cannot issue Data: x%x x%x\n",
8724 mboxq->vport ? mboxq->vport->vpi : 0,
8725 mboxq->u.mb.mbxCommand,
8726 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8727 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8728 psli->sli_flag, flag);
8729 goto out_not_finished;
8732 /* Detect polling mode and jump to a handler */
8733 if (!phba->sli4_hba.intr_enable) {
8734 if (flag == MBX_POLL)
8735 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
8738 if (rc != MBX_SUCCESS)
8739 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
8740 "(%d):2541 Mailbox command x%x "
8741 "(x%x/x%x) failure: "
8742 "mqe_sta: x%x mcqe_sta: x%x/x%x "
8744 mboxq->vport ? mboxq->vport->vpi : 0,
8745 mboxq->u.mb.mbxCommand,
8746 lpfc_sli_config_mbox_subsys_get(phba,
8748 lpfc_sli_config_mbox_opcode_get(phba,
8750 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
8751 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
8752 bf_get(lpfc_mcqe_ext_status,
8754 psli->sli_flag, flag);
8756 } else if (flag == MBX_POLL) {
8757 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
8758 "(%d):2542 Try to issue mailbox command "
8759 "x%x (x%x/x%x) synchronously ahead of async "
8760 "mailbox command queue: x%x x%x\n",
8761 mboxq->vport ? mboxq->vport->vpi : 0,
8762 mboxq->u.mb.mbxCommand,
8763 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8764 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8765 psli->sli_flag, flag);
8766 /* Try to block the asynchronous mailbox posting */
8767 rc = lpfc_sli4_async_mbox_block(phba);
8769 /* Successfully blocked, now issue sync mbox cmd */
8770 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
8771 if (rc != MBX_SUCCESS)
8772 lpfc_printf_log(phba, KERN_WARNING,
8774 "(%d):2597 Sync Mailbox command "
8775 "x%x (x%x/x%x) failure: "
8776 "mqe_sta: x%x mcqe_sta: x%x/x%x "
8778 mboxq->vport ? mboxq->vport->vpi : 0,
8779 mboxq->u.mb.mbxCommand,
8780 lpfc_sli_config_mbox_subsys_get(phba,
8782 lpfc_sli_config_mbox_opcode_get(phba,
8784 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
8785 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
8786 bf_get(lpfc_mcqe_ext_status,
8788 psli->sli_flag, flag);
8789 /* Unblock the async mailbox posting afterward */
8790 lpfc_sli4_async_mbox_unblock(phba);
8795 /* Now, interrupt mode asynchrous mailbox command */
8796 rc = lpfc_mbox_cmd_check(phba, mboxq);
8798 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8799 "(%d):2543 Mailbox command x%x (x%x/x%x) "
8800 "cannot issue Data: x%x x%x\n",
8801 mboxq->vport ? mboxq->vport->vpi : 0,
8802 mboxq->u.mb.mbxCommand,
8803 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8804 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8805 psli->sli_flag, flag);
8806 goto out_not_finished;
8809 /* Put the mailbox command to the driver internal FIFO */
8810 psli->slistat.mbox_busy++;
8811 spin_lock_irqsave(&phba->hbalock, iflags);
8812 lpfc_mbox_put(phba, mboxq);
8813 spin_unlock_irqrestore(&phba->hbalock, iflags);
8814 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8815 "(%d):0354 Mbox cmd issue - Enqueue Data: "
8816 "x%x (x%x/x%x) x%x x%x x%x\n",
8817 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
8818 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
8819 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8820 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8821 phba->pport->port_state,
8822 psli->sli_flag, MBX_NOWAIT);
8823 /* Wake up worker thread to transport mailbox command from head */
8824 lpfc_worker_wake_up(phba);
8829 return MBX_NOT_FINISHED;
8833 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
8834 * @phba: Pointer to HBA context object.
8836 * This function is called by worker thread to send a mailbox command to
8837 * SLI4 HBA firmware.
8841 lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
8843 struct lpfc_sli *psli = &phba->sli;
8844 LPFC_MBOXQ_t *mboxq;
8845 int rc = MBX_SUCCESS;
8846 unsigned long iflags;
8847 struct lpfc_mqe *mqe;
8850 /* Check interrupt mode before post async mailbox command */
8851 if (unlikely(!phba->sli4_hba.intr_enable))
8852 return MBX_NOT_FINISHED;
8854 /* Check for mailbox command service token */
8855 spin_lock_irqsave(&phba->hbalock, iflags);
8856 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
8857 spin_unlock_irqrestore(&phba->hbalock, iflags);
8858 return MBX_NOT_FINISHED;
8860 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8861 spin_unlock_irqrestore(&phba->hbalock, iflags);
8862 return MBX_NOT_FINISHED;
8864 if (unlikely(phba->sli.mbox_active)) {
8865 spin_unlock_irqrestore(&phba->hbalock, iflags);
8866 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8867 "0384 There is pending active mailbox cmd\n");
8868 return MBX_NOT_FINISHED;
8870 /* Take the mailbox command service token */
8871 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
8873 /* Get the next mailbox command from head of queue */
8874 mboxq = lpfc_mbox_get(phba);
8876 /* If no more mailbox command waiting for post, we're done */
8878 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8879 spin_unlock_irqrestore(&phba->hbalock, iflags);
8882 phba->sli.mbox_active = mboxq;
8883 spin_unlock_irqrestore(&phba->hbalock, iflags);
8885 /* Check device readiness for posting mailbox command */
8886 rc = lpfc_mbox_dev_check(phba);
8888 /* Driver clean routine will clean up pending mailbox */
8889 goto out_not_finished;
8891 /* Prepare the mbox command to be posted */
8892 mqe = &mboxq->u.mqe;
8893 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
8895 /* Start timer for the mbox_tmo and log some mailbox post messages */
8896 mod_timer(&psli->mbox_tmo, (jiffies +
8897 msecs_to_jiffies(1000 * lpfc_mbox_tmo_val(phba, mboxq))));
8899 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8900 "(%d):0355 Mailbox cmd x%x (x%x/x%x) issue Data: "
8902 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
8903 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8904 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8905 phba->pport->port_state, psli->sli_flag);
8907 if (mbx_cmnd != MBX_HEARTBEAT) {
8909 lpfc_debugfs_disc_trc(mboxq->vport,
8910 LPFC_DISC_TRC_MBOX_VPORT,
8911 "MBOX Send vport: cmd:x%x mb:x%x x%x",
8912 mbx_cmnd, mqe->un.mb_words[0],
8913 mqe->un.mb_words[1]);
8915 lpfc_debugfs_disc_trc(phba->pport,
8917 "MBOX Send: cmd:x%x mb:x%x x%x",
8918 mbx_cmnd, mqe->un.mb_words[0],
8919 mqe->un.mb_words[1]);
8922 psli->slistat.mbox_cmd++;
8924 /* Post the mailbox command to the port */
8925 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
8926 if (rc != MBX_SUCCESS) {
8927 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8928 "(%d):2533 Mailbox command x%x (x%x/x%x) "
8929 "cannot issue Data: x%x x%x\n",
8930 mboxq->vport ? mboxq->vport->vpi : 0,
8931 mboxq->u.mb.mbxCommand,
8932 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8933 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8934 psli->sli_flag, MBX_NOWAIT);
8935 goto out_not_finished;
8941 spin_lock_irqsave(&phba->hbalock, iflags);
8942 if (phba->sli.mbox_active) {
8943 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
8944 __lpfc_mbox_cmpl_put(phba, mboxq);
8945 /* Release the token */
8946 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8947 phba->sli.mbox_active = NULL;
8949 spin_unlock_irqrestore(&phba->hbalock, iflags);
8951 return MBX_NOT_FINISHED;
8955 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
8956 * @phba: Pointer to HBA context object.
8957 * @pmbox: Pointer to mailbox object.
8958 * @flag: Flag indicating how the mailbox need to be processed.
8960 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
8961 * the API jump table function pointer from the lpfc_hba struct.
8963 * Return codes the caller owns the mailbox command after the return of the
8967 lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
8969 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
8973 * lpfc_mbox_api_table_setup - Set up mbox api function jump table
8974 * @phba: The hba struct for which this call is being executed.
8975 * @dev_grp: The HBA PCI-Device group number.
8977 * This routine sets up the mbox interface API function jump table in @phba
8979 * Returns: 0 - success, -ENODEV - failure.
8982 lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
8986 case LPFC_PCI_DEV_LP:
8987 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
8988 phba->lpfc_sli_handle_slow_ring_event =
8989 lpfc_sli_handle_slow_ring_event_s3;
8990 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
8991 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
8992 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
8994 case LPFC_PCI_DEV_OC:
8995 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
8996 phba->lpfc_sli_handle_slow_ring_event =
8997 lpfc_sli_handle_slow_ring_event_s4;
8998 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
8999 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
9000 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
9003 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9004 "1420 Invalid HBA PCI-device group: 0x%x\n",
9013 * __lpfc_sli_ringtx_put - Add an iocb to the txq
9014 * @phba: Pointer to HBA context object.
9015 * @pring: Pointer to driver SLI ring object.
9016 * @piocb: Pointer to address of newly added command iocb.
9018 * This function is called with hbalock held to add a command
9019 * iocb to the txq when SLI layer cannot submit the command iocb
9023 __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9024 struct lpfc_iocbq *piocb)
9026 lockdep_assert_held(&phba->hbalock);
9027 /* Insert the caller's iocb in the txq tail for later processing. */
9028 list_add_tail(&piocb->list, &pring->txq);
9032 * lpfc_sli_next_iocb - Get the next iocb in the txq
9033 * @phba: Pointer to HBA context object.
9034 * @pring: Pointer to driver SLI ring object.
9035 * @piocb: Pointer to address of newly added command iocb.
9037 * This function is called with hbalock held before a new
9038 * iocb is submitted to the firmware. This function checks
9039 * txq to flush the iocbs in txq to Firmware before
9040 * submitting new iocbs to the Firmware.
9041 * If there are iocbs in the txq which need to be submitted
9042 * to firmware, lpfc_sli_next_iocb returns the first element
9043 * of the txq after dequeuing it from txq.
9044 * If there is no iocb in the txq then the function will return
9045 * *piocb and *piocb is set to NULL. Caller needs to check
9046 * *piocb to find if there are more commands in the txq.
9048 static struct lpfc_iocbq *
9049 lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9050 struct lpfc_iocbq **piocb)
9052 struct lpfc_iocbq * nextiocb;
9054 lockdep_assert_held(&phba->hbalock);
9056 nextiocb = lpfc_sli_ringtx_get(phba, pring);
9066 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
9067 * @phba: Pointer to HBA context object.
9068 * @ring_number: SLI ring number to issue iocb on.
9069 * @piocb: Pointer to command iocb.
9070 * @flag: Flag indicating if this command can be put into txq.
9072 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
9073 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
9074 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
9075 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
9076 * this function allows only iocbs for posting buffers. This function finds
9077 * next available slot in the command ring and posts the command to the
9078 * available slot and writes the port attention register to request HBA start
9079 * processing new iocb. If there is no slot available in the ring and
9080 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
9081 * the function returns IOCB_BUSY.
9083 * This function is called with hbalock held. The function will return success
9084 * after it successfully submit the iocb to firmware or after adding to the
9088 __lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
9089 struct lpfc_iocbq *piocb, uint32_t flag)
9091 struct lpfc_iocbq *nextiocb;
9093 struct lpfc_sli_ring *pring = &phba->sli.sli3_ring[ring_number];
9095 lockdep_assert_held(&phba->hbalock);
9097 if (piocb->iocb_cmpl && (!piocb->vport) &&
9098 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
9099 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
9100 lpfc_printf_log(phba, KERN_ERR,
9101 LOG_SLI | LOG_VPORT,
9102 "1807 IOCB x%x failed. No vport\n",
9103 piocb->iocb.ulpCommand);
9109 /* If the PCI channel is in offline state, do not post iocbs. */
9110 if (unlikely(pci_channel_offline(phba->pcidev)))
9113 /* If HBA has a deferred error attention, fail the iocb. */
9114 if (unlikely(phba->hba_flag & DEFER_ERATT))
9118 * We should never get an IOCB if we are in a < LINK_DOWN state
9120 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
9124 * Check to see if we are blocking IOCB processing because of a
9125 * outstanding event.
9127 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
9130 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
9132 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
9133 * can be issued if the link is not up.
9135 switch (piocb->iocb.ulpCommand) {
9136 case CMD_GEN_REQUEST64_CR:
9137 case CMD_GEN_REQUEST64_CX:
9138 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
9139 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
9140 FC_RCTL_DD_UNSOL_CMD) ||
9141 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
9142 MENLO_TRANSPORT_TYPE))
9146 case CMD_QUE_RING_BUF_CN:
9147 case CMD_QUE_RING_BUF64_CN:
9149 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
9150 * completion, iocb_cmpl MUST be 0.
9152 if (piocb->iocb_cmpl)
9153 piocb->iocb_cmpl = NULL;
9155 case CMD_CREATE_XRI_CR:
9156 case CMD_CLOSE_XRI_CN:
9157 case CMD_CLOSE_XRI_CX:
9164 * For FCP commands, we must be in a state where we can process link
9167 } else if (unlikely(pring->ringno == LPFC_FCP_RING &&
9168 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
9172 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
9173 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
9174 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
9177 lpfc_sli_update_ring(phba, pring);
9179 lpfc_sli_update_full_ring(phba, pring);
9182 return IOCB_SUCCESS;
9187 pring->stats.iocb_cmd_delay++;
9191 if (!(flag & SLI_IOCB_RET_IOCB)) {
9192 __lpfc_sli_ringtx_put(phba, pring, piocb);
9193 return IOCB_SUCCESS;
9200 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
9201 * @phba: Pointer to HBA context object.
9202 * @piocb: Pointer to command iocb.
9203 * @sglq: Pointer to the scatter gather queue object.
9205 * This routine converts the bpl or bde that is in the IOCB
9206 * to a sgl list for the sli4 hardware. The physical address
9207 * of the bpl/bde is converted back to a virtual address.
9208 * If the IOCB contains a BPL then the list of BDE's is
9209 * converted to sli4_sge's. If the IOCB contains a single
9210 * BDE then it is converted to a single sli_sge.
9211 * The IOCB is still in cpu endianess so the contents of
9212 * the bpl can be used without byte swapping.
9214 * Returns valid XRI = Success, NO_XRI = Failure.
9217 lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
9218 struct lpfc_sglq *sglq)
9220 uint16_t xritag = NO_XRI;
9221 struct ulp_bde64 *bpl = NULL;
9222 struct ulp_bde64 bde;
9223 struct sli4_sge *sgl = NULL;
9224 struct lpfc_dmabuf *dmabuf;
9228 uint32_t offset = 0; /* accumulated offset in the sg request list */
9229 int inbound = 0; /* number of sg reply entries inbound from firmware */
9231 if (!piocbq || !sglq)
9234 sgl = (struct sli4_sge *)sglq->sgl;
9235 icmd = &piocbq->iocb;
9236 if (icmd->ulpCommand == CMD_XMIT_BLS_RSP64_CX)
9237 return sglq->sli4_xritag;
9238 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
9239 numBdes = icmd->un.genreq64.bdl.bdeSize /
9240 sizeof(struct ulp_bde64);
9241 /* The addrHigh and addrLow fields within the IOCB
9242 * have not been byteswapped yet so there is no
9243 * need to swap them back.
9245 if (piocbq->context3)
9246 dmabuf = (struct lpfc_dmabuf *)piocbq->context3;
9250 bpl = (struct ulp_bde64 *)dmabuf->virt;
9254 for (i = 0; i < numBdes; i++) {
9255 /* Should already be byte swapped. */
9256 sgl->addr_hi = bpl->addrHigh;
9257 sgl->addr_lo = bpl->addrLow;
9259 sgl->word2 = le32_to_cpu(sgl->word2);
9260 if ((i+1) == numBdes)
9261 bf_set(lpfc_sli4_sge_last, sgl, 1);
9263 bf_set(lpfc_sli4_sge_last, sgl, 0);
9264 /* swap the size field back to the cpu so we
9265 * can assign it to the sgl.
9267 bde.tus.w = le32_to_cpu(bpl->tus.w);
9268 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
9269 /* The offsets in the sgl need to be accumulated
9270 * separately for the request and reply lists.
9271 * The request is always first, the reply follows.
9273 if (piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) {
9274 /* add up the reply sg entries */
9275 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
9277 /* first inbound? reset the offset */
9280 bf_set(lpfc_sli4_sge_offset, sgl, offset);
9281 bf_set(lpfc_sli4_sge_type, sgl,
9282 LPFC_SGE_TYPE_DATA);
9283 offset += bde.tus.f.bdeSize;
9285 sgl->word2 = cpu_to_le32(sgl->word2);
9289 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
9290 /* The addrHigh and addrLow fields of the BDE have not
9291 * been byteswapped yet so they need to be swapped
9292 * before putting them in the sgl.
9295 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
9297 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
9298 sgl->word2 = le32_to_cpu(sgl->word2);
9299 bf_set(lpfc_sli4_sge_last, sgl, 1);
9300 sgl->word2 = cpu_to_le32(sgl->word2);
9302 cpu_to_le32(icmd->un.genreq64.bdl.bdeSize);
9304 return sglq->sli4_xritag;
9308 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
9309 * @phba: Pointer to HBA context object.
9310 * @piocb: Pointer to command iocb.
9311 * @wqe: Pointer to the work queue entry.
9313 * This routine converts the iocb command to its Work Queue Entry
9314 * equivalent. The wqe pointer should not have any fields set when
9315 * this routine is called because it will memcpy over them.
9316 * This routine does not set the CQ_ID or the WQEC bits in the
9319 * Returns: 0 = Success, IOCB_ERROR = Failure.
9322 lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
9323 union lpfc_wqe128 *wqe)
9325 uint32_t xmit_len = 0, total_len = 0;
9329 uint8_t command_type = ELS_COMMAND_NON_FIP;
9332 uint16_t abrt_iotag;
9333 struct lpfc_iocbq *abrtiocbq;
9334 struct ulp_bde64 *bpl = NULL;
9335 uint32_t els_id = LPFC_ELS_ID_DEFAULT;
9337 struct ulp_bde64 bde;
9338 struct lpfc_nodelist *ndlp;
9342 fip = phba->hba_flag & HBA_FIP_SUPPORT;
9343 /* The fcp commands will set command type */
9344 if (iocbq->iocb_flag & LPFC_IO_FCP)
9345 command_type = FCP_COMMAND;
9346 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
9347 command_type = ELS_COMMAND_FIP;
9349 command_type = ELS_COMMAND_NON_FIP;
9351 if (phba->fcp_embed_io)
9352 memset(wqe, 0, sizeof(union lpfc_wqe128));
9353 /* Some of the fields are in the right position already */
9354 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
9355 if (iocbq->iocb.ulpCommand != CMD_SEND_FRAME) {
9356 /* The ct field has moved so reset */
9357 wqe->generic.wqe_com.word7 = 0;
9358 wqe->generic.wqe_com.word10 = 0;
9361 abort_tag = (uint32_t) iocbq->iotag;
9362 xritag = iocbq->sli4_xritag;
9363 /* words0-2 bpl convert bde */
9364 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
9365 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
9366 sizeof(struct ulp_bde64);
9367 bpl = (struct ulp_bde64 *)
9368 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
9372 /* Should already be byte swapped. */
9373 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
9374 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
9375 /* swap the size field back to the cpu so we
9376 * can assign it to the sgl.
9378 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
9379 xmit_len = wqe->generic.bde.tus.f.bdeSize;
9381 for (i = 0; i < numBdes; i++) {
9382 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
9383 total_len += bde.tus.f.bdeSize;
9386 xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
9388 iocbq->iocb.ulpIoTag = iocbq->iotag;
9389 cmnd = iocbq->iocb.ulpCommand;
9391 switch (iocbq->iocb.ulpCommand) {
9392 case CMD_ELS_REQUEST64_CR:
9393 if (iocbq->iocb_flag & LPFC_IO_LIBDFC)
9394 ndlp = iocbq->context_un.ndlp;
9396 ndlp = (struct lpfc_nodelist *)iocbq->context1;
9397 if (!iocbq->iocb.ulpLe) {
9398 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9399 "2007 Only Limited Edition cmd Format"
9400 " supported 0x%x\n",
9401 iocbq->iocb.ulpCommand);
9405 wqe->els_req.payload_len = xmit_len;
9406 /* Els_reguest64 has a TMO */
9407 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
9408 iocbq->iocb.ulpTimeout);
9409 /* Need a VF for word 4 set the vf bit*/
9410 bf_set(els_req64_vf, &wqe->els_req, 0);
9411 /* And a VFID for word 12 */
9412 bf_set(els_req64_vfid, &wqe->els_req, 0);
9413 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
9414 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
9415 iocbq->iocb.ulpContext);
9416 bf_set(wqe_ct, &wqe->els_req.wqe_com, ct);
9417 bf_set(wqe_pu, &wqe->els_req.wqe_com, 0);
9418 /* CCP CCPE PV PRI in word10 were set in the memcpy */
9419 if (command_type == ELS_COMMAND_FIP)
9420 els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
9421 >> LPFC_FIP_ELS_ID_SHIFT);
9422 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
9423 iocbq->context2)->virt);
9424 if_type = bf_get(lpfc_sli_intf_if_type,
9425 &phba->sli4_hba.sli_intf);
9426 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
9427 if (pcmd && (*pcmd == ELS_CMD_FLOGI ||
9428 *pcmd == ELS_CMD_SCR ||
9429 *pcmd == ELS_CMD_RSCN_XMT ||
9430 *pcmd == ELS_CMD_FDISC ||
9431 *pcmd == ELS_CMD_LOGO ||
9432 *pcmd == ELS_CMD_PLOGI)) {
9433 bf_set(els_req64_sp, &wqe->els_req, 1);
9434 bf_set(els_req64_sid, &wqe->els_req,
9435 iocbq->vport->fc_myDID);
9436 if ((*pcmd == ELS_CMD_FLOGI) &&
9437 !(phba->fc_topology ==
9438 LPFC_TOPOLOGY_LOOP))
9439 bf_set(els_req64_sid, &wqe->els_req, 0);
9440 bf_set(wqe_ct, &wqe->els_req.wqe_com, 1);
9441 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
9442 phba->vpi_ids[iocbq->vport->vpi]);
9443 } else if (pcmd && iocbq->context1) {
9444 bf_set(wqe_ct, &wqe->els_req.wqe_com, 0);
9445 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
9446 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
9449 bf_set(wqe_temp_rpi, &wqe->els_req.wqe_com,
9450 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
9451 bf_set(wqe_els_id, &wqe->els_req.wqe_com, els_id);
9452 bf_set(wqe_dbde, &wqe->els_req.wqe_com, 1);
9453 bf_set(wqe_iod, &wqe->els_req.wqe_com, LPFC_WQE_IOD_READ);
9454 bf_set(wqe_qosd, &wqe->els_req.wqe_com, 1);
9455 bf_set(wqe_lenloc, &wqe->els_req.wqe_com, LPFC_WQE_LENLOC_NONE);
9456 bf_set(wqe_ebde_cnt, &wqe->els_req.wqe_com, 0);
9457 wqe->els_req.max_response_payload_len = total_len - xmit_len;
9459 case CMD_XMIT_SEQUENCE64_CX:
9460 bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com,
9461 iocbq->iocb.un.ulpWord[3]);
9462 bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com,
9463 iocbq->iocb.unsli3.rcvsli3.ox_id);
9464 /* The entire sequence is transmitted for this IOCB */
9465 xmit_len = total_len;
9466 cmnd = CMD_XMIT_SEQUENCE64_CR;
9467 if (phba->link_flag & LS_LOOPBACK_MODE)
9468 bf_set(wqe_xo, &wqe->xmit_sequence.wge_ctl, 1);
9470 case CMD_XMIT_SEQUENCE64_CR:
9471 /* word3 iocb=io_tag32 wqe=reserved */
9472 wqe->xmit_sequence.rsvd3 = 0;
9473 /* word4 relative_offset memcpy */
9474 /* word5 r_ctl/df_ctl memcpy */
9475 bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0);
9476 bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1);
9477 bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com,
9478 LPFC_WQE_IOD_WRITE);
9479 bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com,
9480 LPFC_WQE_LENLOC_WORD12);
9481 bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0);
9482 wqe->xmit_sequence.xmit_len = xmit_len;
9483 command_type = OTHER_COMMAND;
9485 case CMD_XMIT_BCAST64_CN:
9486 /* word3 iocb=iotag32 wqe=seq_payload_len */
9487 wqe->xmit_bcast64.seq_payload_len = xmit_len;
9488 /* word4 iocb=rsvd wqe=rsvd */
9489 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
9490 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
9491 bf_set(wqe_ct, &wqe->xmit_bcast64.wqe_com,
9492 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
9493 bf_set(wqe_dbde, &wqe->xmit_bcast64.wqe_com, 1);
9494 bf_set(wqe_iod, &wqe->xmit_bcast64.wqe_com, LPFC_WQE_IOD_WRITE);
9495 bf_set(wqe_lenloc, &wqe->xmit_bcast64.wqe_com,
9496 LPFC_WQE_LENLOC_WORD3);
9497 bf_set(wqe_ebde_cnt, &wqe->xmit_bcast64.wqe_com, 0);
9499 case CMD_FCP_IWRITE64_CR:
9500 command_type = FCP_COMMAND_DATA_OUT;
9501 /* word3 iocb=iotag wqe=payload_offset_len */
9502 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
9503 bf_set(payload_offset_len, &wqe->fcp_iwrite,
9504 xmit_len + sizeof(struct fcp_rsp));
9505 bf_set(cmd_buff_len, &wqe->fcp_iwrite,
9507 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
9508 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
9509 bf_set(wqe_erp, &wqe->fcp_iwrite.wqe_com,
9510 iocbq->iocb.ulpFCP2Rcvy);
9511 bf_set(wqe_lnk, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpXS);
9512 /* Always open the exchange */
9513 bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE);
9514 bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com,
9515 LPFC_WQE_LENLOC_WORD4);
9516 bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpPU);
9517 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 1);
9518 if (iocbq->iocb_flag & LPFC_IO_OAS) {
9519 bf_set(wqe_oas, &wqe->fcp_iwrite.wqe_com, 1);
9520 bf_set(wqe_ccpe, &wqe->fcp_iwrite.wqe_com, 1);
9521 if (iocbq->priority) {
9522 bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
9523 (iocbq->priority << 1));
9525 bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
9526 (phba->cfg_XLanePriority << 1));
9529 /* Note, word 10 is already initialized to 0 */
9531 /* Don't set PBDE for Perf hints, just lpfc_enable_pbde */
9532 if (phba->cfg_enable_pbde)
9533 bf_set(wqe_pbde, &wqe->fcp_iwrite.wqe_com, 1);
9535 bf_set(wqe_pbde, &wqe->fcp_iwrite.wqe_com, 0);
9537 if (phba->fcp_embed_io) {
9538 struct lpfc_io_buf *lpfc_cmd;
9539 struct sli4_sge *sgl;
9540 struct fcp_cmnd *fcp_cmnd;
9543 /* 128 byte wqe support here */
9545 lpfc_cmd = iocbq->context1;
9546 sgl = (struct sli4_sge *)lpfc_cmd->dma_sgl;
9547 fcp_cmnd = lpfc_cmd->fcp_cmnd;
9549 /* Word 0-2 - FCP_CMND */
9550 wqe->generic.bde.tus.f.bdeFlags =
9551 BUFF_TYPE_BDE_IMMED;
9552 wqe->generic.bde.tus.f.bdeSize = sgl->sge_len;
9553 wqe->generic.bde.addrHigh = 0;
9554 wqe->generic.bde.addrLow = 88; /* Word 22 */
9556 bf_set(wqe_wqes, &wqe->fcp_iwrite.wqe_com, 1);
9557 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 0);
9559 /* Word 22-29 FCP CMND Payload */
9560 ptr = &wqe->words[22];
9561 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
9564 case CMD_FCP_IREAD64_CR:
9565 /* word3 iocb=iotag wqe=payload_offset_len */
9566 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
9567 bf_set(payload_offset_len, &wqe->fcp_iread,
9568 xmit_len + sizeof(struct fcp_rsp));
9569 bf_set(cmd_buff_len, &wqe->fcp_iread,
9571 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
9572 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
9573 bf_set(wqe_erp, &wqe->fcp_iread.wqe_com,
9574 iocbq->iocb.ulpFCP2Rcvy);
9575 bf_set(wqe_lnk, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpXS);
9576 /* Always open the exchange */
9577 bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ);
9578 bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com,
9579 LPFC_WQE_LENLOC_WORD4);
9580 bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpPU);
9581 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 1);
9582 if (iocbq->iocb_flag & LPFC_IO_OAS) {
9583 bf_set(wqe_oas, &wqe->fcp_iread.wqe_com, 1);
9584 bf_set(wqe_ccpe, &wqe->fcp_iread.wqe_com, 1);
9585 if (iocbq->priority) {
9586 bf_set(wqe_ccp, &wqe->fcp_iread.wqe_com,
9587 (iocbq->priority << 1));
9589 bf_set(wqe_ccp, &wqe->fcp_iread.wqe_com,
9590 (phba->cfg_XLanePriority << 1));
9593 /* Note, word 10 is already initialized to 0 */
9595 /* Don't set PBDE for Perf hints, just lpfc_enable_pbde */
9596 if (phba->cfg_enable_pbde)
9597 bf_set(wqe_pbde, &wqe->fcp_iread.wqe_com, 1);
9599 bf_set(wqe_pbde, &wqe->fcp_iread.wqe_com, 0);
9601 if (phba->fcp_embed_io) {
9602 struct lpfc_io_buf *lpfc_cmd;
9603 struct sli4_sge *sgl;
9604 struct fcp_cmnd *fcp_cmnd;
9607 /* 128 byte wqe support here */
9609 lpfc_cmd = iocbq->context1;
9610 sgl = (struct sli4_sge *)lpfc_cmd->dma_sgl;
9611 fcp_cmnd = lpfc_cmd->fcp_cmnd;
9613 /* Word 0-2 - FCP_CMND */
9614 wqe->generic.bde.tus.f.bdeFlags =
9615 BUFF_TYPE_BDE_IMMED;
9616 wqe->generic.bde.tus.f.bdeSize = sgl->sge_len;
9617 wqe->generic.bde.addrHigh = 0;
9618 wqe->generic.bde.addrLow = 88; /* Word 22 */
9620 bf_set(wqe_wqes, &wqe->fcp_iread.wqe_com, 1);
9621 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 0);
9623 /* Word 22-29 FCP CMND Payload */
9624 ptr = &wqe->words[22];
9625 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
9628 case CMD_FCP_ICMND64_CR:
9629 /* word3 iocb=iotag wqe=payload_offset_len */
9630 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
9631 bf_set(payload_offset_len, &wqe->fcp_icmd,
9632 xmit_len + sizeof(struct fcp_rsp));
9633 bf_set(cmd_buff_len, &wqe->fcp_icmd,
9635 /* word3 iocb=IO_TAG wqe=reserved */
9636 bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0);
9637 /* Always open the exchange */
9638 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 1);
9639 bf_set(wqe_iod, &wqe->fcp_icmd.wqe_com, LPFC_WQE_IOD_WRITE);
9640 bf_set(wqe_qosd, &wqe->fcp_icmd.wqe_com, 1);
9641 bf_set(wqe_lenloc, &wqe->fcp_icmd.wqe_com,
9642 LPFC_WQE_LENLOC_NONE);
9643 bf_set(wqe_erp, &wqe->fcp_icmd.wqe_com,
9644 iocbq->iocb.ulpFCP2Rcvy);
9645 if (iocbq->iocb_flag & LPFC_IO_OAS) {
9646 bf_set(wqe_oas, &wqe->fcp_icmd.wqe_com, 1);
9647 bf_set(wqe_ccpe, &wqe->fcp_icmd.wqe_com, 1);
9648 if (iocbq->priority) {
9649 bf_set(wqe_ccp, &wqe->fcp_icmd.wqe_com,
9650 (iocbq->priority << 1));
9652 bf_set(wqe_ccp, &wqe->fcp_icmd.wqe_com,
9653 (phba->cfg_XLanePriority << 1));
9656 /* Note, word 10 is already initialized to 0 */
9658 if (phba->fcp_embed_io) {
9659 struct lpfc_io_buf *lpfc_cmd;
9660 struct sli4_sge *sgl;
9661 struct fcp_cmnd *fcp_cmnd;
9664 /* 128 byte wqe support here */
9666 lpfc_cmd = iocbq->context1;
9667 sgl = (struct sli4_sge *)lpfc_cmd->dma_sgl;
9668 fcp_cmnd = lpfc_cmd->fcp_cmnd;
9670 /* Word 0-2 - FCP_CMND */
9671 wqe->generic.bde.tus.f.bdeFlags =
9672 BUFF_TYPE_BDE_IMMED;
9673 wqe->generic.bde.tus.f.bdeSize = sgl->sge_len;
9674 wqe->generic.bde.addrHigh = 0;
9675 wqe->generic.bde.addrLow = 88; /* Word 22 */
9677 bf_set(wqe_wqes, &wqe->fcp_icmd.wqe_com, 1);
9678 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 0);
9680 /* Word 22-29 FCP CMND Payload */
9681 ptr = &wqe->words[22];
9682 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
9685 case CMD_GEN_REQUEST64_CR:
9686 /* For this command calculate the xmit length of the
9690 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
9691 sizeof(struct ulp_bde64);
9692 for (i = 0; i < numBdes; i++) {
9693 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
9694 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
9696 xmit_len += bde.tus.f.bdeSize;
9698 /* word3 iocb=IO_TAG wqe=request_payload_len */
9699 wqe->gen_req.request_payload_len = xmit_len;
9700 /* word4 iocb=parameter wqe=relative_offset memcpy */
9701 /* word5 [rctl, type, df_ctl, la] copied in memcpy */
9702 /* word6 context tag copied in memcpy */
9703 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
9704 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
9705 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9706 "2015 Invalid CT %x command 0x%x\n",
9707 ct, iocbq->iocb.ulpCommand);
9710 bf_set(wqe_ct, &wqe->gen_req.wqe_com, 0);
9711 bf_set(wqe_tmo, &wqe->gen_req.wqe_com, iocbq->iocb.ulpTimeout);
9712 bf_set(wqe_pu, &wqe->gen_req.wqe_com, iocbq->iocb.ulpPU);
9713 bf_set(wqe_dbde, &wqe->gen_req.wqe_com, 1);
9714 bf_set(wqe_iod, &wqe->gen_req.wqe_com, LPFC_WQE_IOD_READ);
9715 bf_set(wqe_qosd, &wqe->gen_req.wqe_com, 1);
9716 bf_set(wqe_lenloc, &wqe->gen_req.wqe_com, LPFC_WQE_LENLOC_NONE);
9717 bf_set(wqe_ebde_cnt, &wqe->gen_req.wqe_com, 0);
9718 wqe->gen_req.max_response_payload_len = total_len - xmit_len;
9719 command_type = OTHER_COMMAND;
9721 case CMD_XMIT_ELS_RSP64_CX:
9722 ndlp = (struct lpfc_nodelist *)iocbq->context1;
9723 /* words0-2 BDE memcpy */
9724 /* word3 iocb=iotag32 wqe=response_payload_len */
9725 wqe->xmit_els_rsp.response_payload_len = xmit_len;
9727 wqe->xmit_els_rsp.word4 = 0;
9728 /* word5 iocb=rsvd wge=did */
9729 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
9730 iocbq->iocb.un.xseq64.xmit_els_remoteID);
9732 if_type = bf_get(lpfc_sli_intf_if_type,
9733 &phba->sli4_hba.sli_intf);
9734 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
9735 if (iocbq->vport->fc_flag & FC_PT2PT) {
9736 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
9737 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
9738 iocbq->vport->fc_myDID);
9739 if (iocbq->vport->fc_myDID == Fabric_DID) {
9741 &wqe->xmit_els_rsp.wqe_dest, 0);
9745 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com,
9746 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
9747 bf_set(wqe_pu, &wqe->xmit_els_rsp.wqe_com, iocbq->iocb.ulpPU);
9748 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
9749 iocbq->iocb.unsli3.rcvsli3.ox_id);
9750 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
9751 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
9752 phba->vpi_ids[iocbq->vport->vpi]);
9753 bf_set(wqe_dbde, &wqe->xmit_els_rsp.wqe_com, 1);
9754 bf_set(wqe_iod, &wqe->xmit_els_rsp.wqe_com, LPFC_WQE_IOD_WRITE);
9755 bf_set(wqe_qosd, &wqe->xmit_els_rsp.wqe_com, 1);
9756 bf_set(wqe_lenloc, &wqe->xmit_els_rsp.wqe_com,
9757 LPFC_WQE_LENLOC_WORD3);
9758 bf_set(wqe_ebde_cnt, &wqe->xmit_els_rsp.wqe_com, 0);
9759 bf_set(wqe_rsp_temp_rpi, &wqe->xmit_els_rsp,
9760 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
9761 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
9762 iocbq->context2)->virt);
9763 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
9764 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
9765 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
9766 iocbq->vport->fc_myDID);
9767 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com, 1);
9768 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
9769 phba->vpi_ids[phba->pport->vpi]);
9771 command_type = OTHER_COMMAND;
9773 case CMD_CLOSE_XRI_CN:
9774 case CMD_ABORT_XRI_CN:
9775 case CMD_ABORT_XRI_CX:
9776 /* words 0-2 memcpy should be 0 rserved */
9777 /* port will send abts */
9778 abrt_iotag = iocbq->iocb.un.acxri.abortContextTag;
9779 if (abrt_iotag != 0 && abrt_iotag <= phba->sli.last_iotag) {
9780 abrtiocbq = phba->sli.iocbq_lookup[abrt_iotag];
9781 fip = abrtiocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK;
9785 if ((iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN) || fip)
9787 * The link is down, or the command was ELS_FIP
9788 * so the fw does not need to send abts
9791 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
9793 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
9794 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
9795 /* word5 iocb=CONTEXT_TAG|IO_TAG wqe=reserved */
9796 wqe->abort_cmd.rsrvd5 = 0;
9797 bf_set(wqe_ct, &wqe->abort_cmd.wqe_com,
9798 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
9799 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
9801 * The abort handler will send us CMD_ABORT_XRI_CN or
9802 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
9804 bf_set(wqe_cmnd, &wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
9805 bf_set(wqe_qosd, &wqe->abort_cmd.wqe_com, 1);
9806 bf_set(wqe_lenloc, &wqe->abort_cmd.wqe_com,
9807 LPFC_WQE_LENLOC_NONE);
9808 cmnd = CMD_ABORT_XRI_CX;
9809 command_type = OTHER_COMMAND;
9812 case CMD_XMIT_BLS_RSP64_CX:
9813 ndlp = (struct lpfc_nodelist *)iocbq->context1;
9814 /* As BLS ABTS RSP WQE is very different from other WQEs,
9815 * we re-construct this WQE here based on information in
9816 * iocbq from scratch.
9818 memset(wqe, 0, sizeof(*wqe));
9819 /* OX_ID is invariable to who sent ABTS to CT exchange */
9820 bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
9821 bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_rsp));
9822 if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_rsp) ==
9823 LPFC_ABTS_UNSOL_INT) {
9824 /* ABTS sent by initiator to CT exchange, the
9825 * RX_ID field will be filled with the newly
9826 * allocated responder XRI.
9828 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
9829 iocbq->sli4_xritag);
9831 /* ABTS sent by responder to CT exchange, the
9832 * RX_ID field will be filled with the responder
9835 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
9836 bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_rsp));
9838 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
9839 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
9842 bf_set(wqe_els_did, &wqe->xmit_bls_rsp.wqe_dest,
9844 bf_set(xmit_bls_rsp64_temprpi, &wqe->xmit_bls_rsp,
9845 iocbq->iocb.ulpContext);
9846 bf_set(wqe_ct, &wqe->xmit_bls_rsp.wqe_com, 1);
9847 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
9848 phba->vpi_ids[phba->pport->vpi]);
9849 bf_set(wqe_qosd, &wqe->xmit_bls_rsp.wqe_com, 1);
9850 bf_set(wqe_lenloc, &wqe->xmit_bls_rsp.wqe_com,
9851 LPFC_WQE_LENLOC_NONE);
9852 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
9853 command_type = OTHER_COMMAND;
9854 if (iocbq->iocb.un.xseq64.w5.hcsw.Rctl == FC_RCTL_BA_RJT) {
9855 bf_set(xmit_bls_rsp64_rjt_vspec, &wqe->xmit_bls_rsp,
9856 bf_get(lpfc_vndr_code, &iocbq->iocb.un.bls_rsp));
9857 bf_set(xmit_bls_rsp64_rjt_expc, &wqe->xmit_bls_rsp,
9858 bf_get(lpfc_rsn_expln, &iocbq->iocb.un.bls_rsp));
9859 bf_set(xmit_bls_rsp64_rjt_rsnc, &wqe->xmit_bls_rsp,
9860 bf_get(lpfc_rsn_code, &iocbq->iocb.un.bls_rsp));
9864 case CMD_SEND_FRAME:
9865 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
9866 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
9868 case CMD_XRI_ABORTED_CX:
9869 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
9870 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
9871 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
9872 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
9873 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
9875 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9876 "2014 Invalid command 0x%x\n",
9877 iocbq->iocb.ulpCommand);
9882 if (iocbq->iocb_flag & LPFC_IO_DIF_PASS)
9883 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_PASSTHRU);
9884 else if (iocbq->iocb_flag & LPFC_IO_DIF_STRIP)
9885 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_STRIP);
9886 else if (iocbq->iocb_flag & LPFC_IO_DIF_INSERT)
9887 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_INSERT);
9888 iocbq->iocb_flag &= ~(LPFC_IO_DIF_PASS | LPFC_IO_DIF_STRIP |
9889 LPFC_IO_DIF_INSERT);
9890 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
9891 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
9892 wqe->generic.wqe_com.abort_tag = abort_tag;
9893 bf_set(wqe_cmd_type, &wqe->generic.wqe_com, command_type);
9894 bf_set(wqe_cmnd, &wqe->generic.wqe_com, cmnd);
9895 bf_set(wqe_class, &wqe->generic.wqe_com, iocbq->iocb.ulpClass);
9896 bf_set(wqe_cqid, &wqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
9901 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
9902 * @phba: Pointer to HBA context object.
9903 * @ring_number: SLI ring number to issue iocb on.
9904 * @piocb: Pointer to command iocb.
9905 * @flag: Flag indicating if this command can be put into txq.
9907 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
9908 * an iocb command to an HBA with SLI-4 interface spec.
9910 * This function is called with hbalock held. The function will return success
9911 * after it successfully submit the iocb to firmware or after adding to the
9915 __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
9916 struct lpfc_iocbq *piocb, uint32_t flag)
9918 struct lpfc_sglq *sglq;
9919 union lpfc_wqe128 wqe;
9920 struct lpfc_queue *wq;
9921 struct lpfc_sli_ring *pring;
9924 if ((piocb->iocb_flag & LPFC_IO_FCP) ||
9925 (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
9926 wq = phba->sli4_hba.hdwq[piocb->hba_wqidx].fcp_wq;
9928 wq = phba->sli4_hba.els_wq;
9931 /* Get corresponding ring */
9935 * The WQE can be either 64 or 128 bytes,
9938 lockdep_assert_held(&pring->ring_lock);
9940 if (piocb->sli4_xritag == NO_XRI) {
9941 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
9942 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
9945 if (!list_empty(&pring->txq)) {
9946 if (!(flag & SLI_IOCB_RET_IOCB)) {
9947 __lpfc_sli_ringtx_put(phba,
9949 return IOCB_SUCCESS;
9954 sglq = __lpfc_sli_get_els_sglq(phba, piocb);
9956 if (!(flag & SLI_IOCB_RET_IOCB)) {
9957 __lpfc_sli_ringtx_put(phba,
9960 return IOCB_SUCCESS;
9966 } else if (piocb->iocb_flag & LPFC_IO_FCP)
9967 /* These IO's already have an XRI and a mapped sgl. */
9971 * This is a continuation of a commandi,(CX) so this
9972 * sglq is on the active list
9974 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_lxritag);
9980 piocb->sli4_lxritag = sglq->sli4_lxritag;
9981 piocb->sli4_xritag = sglq->sli4_xritag;
9982 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocb, sglq))
9986 if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe))
9989 if (lpfc_sli4_wq_put(wq, &wqe))
9991 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
9997 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
9999 * This routine wraps the actual lockless version for issusing IOCB function
10000 * pointer from the lpfc_hba struct.
10003 * IOCB_ERROR - Error
10004 * IOCB_SUCCESS - Success
10008 __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
10009 struct lpfc_iocbq *piocb, uint32_t flag)
10011 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
10015 * lpfc_sli_api_table_setup - Set up sli api function jump table
10016 * @phba: The hba struct for which this call is being executed.
10017 * @dev_grp: The HBA PCI-Device group number.
10019 * This routine sets up the SLI interface API function jump table in @phba
10021 * Returns: 0 - success, -ENODEV - failure.
10024 lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
10028 case LPFC_PCI_DEV_LP:
10029 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
10030 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
10032 case LPFC_PCI_DEV_OC:
10033 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
10034 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
10037 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10038 "1419 Invalid HBA PCI-device group: 0x%x\n",
10043 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
10048 * lpfc_sli4_calc_ring - Calculates which ring to use
10049 * @phba: Pointer to HBA context object.
10050 * @piocb: Pointer to command iocb.
10052 * For SLI4 only, FCP IO can deferred to one fo many WQs, based on
10053 * hba_wqidx, thus we need to calculate the corresponding ring.
10054 * Since ABORTS must go on the same WQ of the command they are
10055 * aborting, we use command's hba_wqidx.
10057 struct lpfc_sli_ring *
10058 lpfc_sli4_calc_ring(struct lpfc_hba *phba, struct lpfc_iocbq *piocb)
10060 struct lpfc_io_buf *lpfc_cmd;
10062 if (piocb->iocb_flag & (LPFC_IO_FCP | LPFC_USE_FCPWQIDX)) {
10063 if (unlikely(!phba->sli4_hba.hdwq))
10066 * for abort iocb hba_wqidx should already
10067 * be setup based on what work queue we used.
10069 if (!(piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
10070 lpfc_cmd = (struct lpfc_io_buf *)piocb->context1;
10071 piocb->hba_wqidx = lpfc_cmd->hdwq_no;
10073 return phba->sli4_hba.hdwq[piocb->hba_wqidx].fcp_wq->pring;
10075 if (unlikely(!phba->sli4_hba.els_wq))
10077 piocb->hba_wqidx = 0;
10078 return phba->sli4_hba.els_wq->pring;
10083 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
10084 * @phba: Pointer to HBA context object.
10085 * @pring: Pointer to driver SLI ring object.
10086 * @piocb: Pointer to command iocb.
10087 * @flag: Flag indicating if this command can be put into txq.
10089 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
10090 * function. This function gets the hbalock and calls
10091 * __lpfc_sli_issue_iocb function and will return the error returned
10092 * by __lpfc_sli_issue_iocb function. This wrapper is used by
10093 * functions which do not hold hbalock.
10096 lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
10097 struct lpfc_iocbq *piocb, uint32_t flag)
10099 struct lpfc_sli_ring *pring;
10100 unsigned long iflags;
10103 if (phba->sli_rev == LPFC_SLI_REV4) {
10104 pring = lpfc_sli4_calc_ring(phba, piocb);
10105 if (unlikely(pring == NULL))
10108 spin_lock_irqsave(&pring->ring_lock, iflags);
10109 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
10110 spin_unlock_irqrestore(&pring->ring_lock, iflags);
10112 /* For now, SLI2/3 will still use hbalock */
10113 spin_lock_irqsave(&phba->hbalock, iflags);
10114 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
10115 spin_unlock_irqrestore(&phba->hbalock, iflags);
10121 * lpfc_extra_ring_setup - Extra ring setup function
10122 * @phba: Pointer to HBA context object.
10124 * This function is called while driver attaches with the
10125 * HBA to setup the extra ring. The extra ring is used
10126 * only when driver needs to support target mode functionality
10127 * or IP over FC functionalities.
10129 * This function is called with no lock held. SLI3 only.
10132 lpfc_extra_ring_setup( struct lpfc_hba *phba)
10134 struct lpfc_sli *psli;
10135 struct lpfc_sli_ring *pring;
10139 /* Adjust cmd/rsp ring iocb entries more evenly */
10141 /* Take some away from the FCP ring */
10142 pring = &psli->sli3_ring[LPFC_FCP_RING];
10143 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
10144 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
10145 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
10146 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
10148 /* and give them to the extra ring */
10149 pring = &psli->sli3_ring[LPFC_EXTRA_RING];
10151 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
10152 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
10153 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
10154 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
10156 /* Setup default profile for this ring */
10157 pring->iotag_max = 4096;
10158 pring->num_mask = 1;
10159 pring->prt[0].profile = 0; /* Mask 0 */
10160 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
10161 pring->prt[0].type = phba->cfg_multi_ring_type;
10162 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
10166 /* lpfc_sli_abts_err_handler - handle a failed ABTS request from an SLI3 port.
10167 * @phba: Pointer to HBA context object.
10168 * @iocbq: Pointer to iocb object.
10170 * The async_event handler calls this routine when it receives
10171 * an ASYNC_STATUS_CN event from the port. The port generates
10172 * this event when an Abort Sequence request to an rport fails
10173 * twice in succession. The abort could be originated by the
10174 * driver or by the port. The ABTS could have been for an ELS
10175 * or FCP IO. The port only generates this event when an ABTS
10176 * fails to complete after one retry.
10179 lpfc_sli_abts_err_handler(struct lpfc_hba *phba,
10180 struct lpfc_iocbq *iocbq)
10182 struct lpfc_nodelist *ndlp = NULL;
10183 uint16_t rpi = 0, vpi = 0;
10184 struct lpfc_vport *vport = NULL;
10186 /* The rpi in the ulpContext is vport-sensitive. */
10187 vpi = iocbq->iocb.un.asyncstat.sub_ctxt_tag;
10188 rpi = iocbq->iocb.ulpContext;
10190 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
10191 "3092 Port generated ABTS async event "
10192 "on vpi %d rpi %d status 0x%x\n",
10193 vpi, rpi, iocbq->iocb.ulpStatus);
10195 vport = lpfc_find_vport_by_vpid(phba, vpi);
10198 ndlp = lpfc_findnode_rpi(vport, rpi);
10199 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
10202 if (iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT)
10203 lpfc_sli_abts_recover_port(vport, ndlp);
10207 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10208 "3095 Event Context not found, no "
10209 "action on vpi %d rpi %d status 0x%x, reason 0x%x\n",
10210 iocbq->iocb.ulpContext, iocbq->iocb.ulpStatus,
10214 /* lpfc_sli4_abts_err_handler - handle a failed ABTS request from an SLI4 port.
10215 * @phba: pointer to HBA context object.
10216 * @ndlp: nodelist pointer for the impacted rport.
10217 * @axri: pointer to the wcqe containing the failed exchange.
10219 * The driver calls this routine when it receives an ABORT_XRI_FCP CQE from the
10220 * port. The port generates this event when an abort exchange request to an
10221 * rport fails twice in succession with no reply. The abort could be originated
10222 * by the driver or by the port. The ABTS could have been for an ELS or FCP IO.
10225 lpfc_sli4_abts_err_handler(struct lpfc_hba *phba,
10226 struct lpfc_nodelist *ndlp,
10227 struct sli4_wcqe_xri_aborted *axri)
10229 struct lpfc_vport *vport;
10230 uint32_t ext_status = 0;
10232 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
10233 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10234 "3115 Node Context not found, driver "
10235 "ignoring abts err event\n");
10239 vport = ndlp->vport;
10240 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
10241 "3116 Port generated FCP XRI ABORT event on "
10242 "vpi %d rpi %d xri x%x status 0x%x parameter x%x\n",
10243 ndlp->vport->vpi, phba->sli4_hba.rpi_ids[ndlp->nlp_rpi],
10244 bf_get(lpfc_wcqe_xa_xri, axri),
10245 bf_get(lpfc_wcqe_xa_status, axri),
10249 * Catch the ABTS protocol failure case. Older OCe FW releases returned
10250 * LOCAL_REJECT and 0 for a failed ABTS exchange and later OCe and
10251 * LPe FW releases returned LOCAL_REJECT and SEQUENCE_TIMEOUT.
10253 ext_status = axri->parameter & IOERR_PARAM_MASK;
10254 if ((bf_get(lpfc_wcqe_xa_status, axri) == IOSTAT_LOCAL_REJECT) &&
10255 ((ext_status == IOERR_SEQUENCE_TIMEOUT) || (ext_status == 0)))
10256 lpfc_sli_abts_recover_port(vport, ndlp);
10260 * lpfc_sli_async_event_handler - ASYNC iocb handler function
10261 * @phba: Pointer to HBA context object.
10262 * @pring: Pointer to driver SLI ring object.
10263 * @iocbq: Pointer to iocb object.
10265 * This function is called by the slow ring event handler
10266 * function when there is an ASYNC event iocb in the ring.
10267 * This function is called with no lock held.
10268 * Currently this function handles only temperature related
10269 * ASYNC events. The function decodes the temperature sensor
10270 * event message and posts events for the management applications.
10273 lpfc_sli_async_event_handler(struct lpfc_hba * phba,
10274 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
10278 struct temp_event temp_event_data;
10279 struct Scsi_Host *shost;
10282 icmd = &iocbq->iocb;
10283 evt_code = icmd->un.asyncstat.evt_code;
10285 switch (evt_code) {
10286 case ASYNC_TEMP_WARN:
10287 case ASYNC_TEMP_SAFE:
10288 temp_event_data.data = (uint32_t) icmd->ulpContext;
10289 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
10290 if (evt_code == ASYNC_TEMP_WARN) {
10291 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
10292 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
10293 "0347 Adapter is very hot, please take "
10294 "corrective action. temperature : %d Celsius\n",
10295 (uint32_t) icmd->ulpContext);
10297 temp_event_data.event_code = LPFC_NORMAL_TEMP;
10298 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
10299 "0340 Adapter temperature is OK now. "
10300 "temperature : %d Celsius\n",
10301 (uint32_t) icmd->ulpContext);
10304 /* Send temperature change event to applications */
10305 shost = lpfc_shost_from_vport(phba->pport);
10306 fc_host_post_vendor_event(shost, fc_get_event_number(),
10307 sizeof(temp_event_data), (char *) &temp_event_data,
10308 LPFC_NL_VENDOR_ID);
10310 case ASYNC_STATUS_CN:
10311 lpfc_sli_abts_err_handler(phba, iocbq);
10314 iocb_w = (uint32_t *) icmd;
10315 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10316 "0346 Ring %d handler: unexpected ASYNC_STATUS"
10318 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
10319 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
10320 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
10321 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
10322 pring->ringno, icmd->un.asyncstat.evt_code,
10323 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
10324 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
10325 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
10326 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
10334 * lpfc_sli4_setup - SLI ring setup function
10335 * @phba: Pointer to HBA context object.
10337 * lpfc_sli_setup sets up rings of the SLI interface with
10338 * number of iocbs per ring and iotags. This function is
10339 * called while driver attach to the HBA and before the
10340 * interrupts are enabled. So there is no need for locking.
10342 * This function always returns 0.
10345 lpfc_sli4_setup(struct lpfc_hba *phba)
10347 struct lpfc_sli_ring *pring;
10349 pring = phba->sli4_hba.els_wq->pring;
10350 pring->num_mask = LPFC_MAX_RING_MASK;
10351 pring->prt[0].profile = 0; /* Mask 0 */
10352 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
10353 pring->prt[0].type = FC_TYPE_ELS;
10354 pring->prt[0].lpfc_sli_rcv_unsol_event =
10355 lpfc_els_unsol_event;
10356 pring->prt[1].profile = 0; /* Mask 1 */
10357 pring->prt[1].rctl = FC_RCTL_ELS_REP;
10358 pring->prt[1].type = FC_TYPE_ELS;
10359 pring->prt[1].lpfc_sli_rcv_unsol_event =
10360 lpfc_els_unsol_event;
10361 pring->prt[2].profile = 0; /* Mask 2 */
10362 /* NameServer Inquiry */
10363 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
10365 pring->prt[2].type = FC_TYPE_CT;
10366 pring->prt[2].lpfc_sli_rcv_unsol_event =
10367 lpfc_ct_unsol_event;
10368 pring->prt[3].profile = 0; /* Mask 3 */
10369 /* NameServer response */
10370 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
10372 pring->prt[3].type = FC_TYPE_CT;
10373 pring->prt[3].lpfc_sli_rcv_unsol_event =
10374 lpfc_ct_unsol_event;
10379 * lpfc_sli_setup - SLI ring setup function
10380 * @phba: Pointer to HBA context object.
10382 * lpfc_sli_setup sets up rings of the SLI interface with
10383 * number of iocbs per ring and iotags. This function is
10384 * called while driver attach to the HBA and before the
10385 * interrupts are enabled. So there is no need for locking.
10387 * This function always returns 0. SLI3 only.
10390 lpfc_sli_setup(struct lpfc_hba *phba)
10392 int i, totiocbsize = 0;
10393 struct lpfc_sli *psli = &phba->sli;
10394 struct lpfc_sli_ring *pring;
10396 psli->num_rings = MAX_SLI3_CONFIGURED_RINGS;
10397 psli->sli_flag = 0;
10399 psli->iocbq_lookup = NULL;
10400 psli->iocbq_lookup_len = 0;
10401 psli->last_iotag = 0;
10403 for (i = 0; i < psli->num_rings; i++) {
10404 pring = &psli->sli3_ring[i];
10406 case LPFC_FCP_RING: /* ring 0 - FCP */
10407 /* numCiocb and numRiocb are used in config_port */
10408 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
10409 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
10410 pring->sli.sli3.numCiocb +=
10411 SLI2_IOCB_CMD_R1XTRA_ENTRIES;
10412 pring->sli.sli3.numRiocb +=
10413 SLI2_IOCB_RSP_R1XTRA_ENTRIES;
10414 pring->sli.sli3.numCiocb +=
10415 SLI2_IOCB_CMD_R3XTRA_ENTRIES;
10416 pring->sli.sli3.numRiocb +=
10417 SLI2_IOCB_RSP_R3XTRA_ENTRIES;
10418 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
10419 SLI3_IOCB_CMD_SIZE :
10420 SLI2_IOCB_CMD_SIZE;
10421 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
10422 SLI3_IOCB_RSP_SIZE :
10423 SLI2_IOCB_RSP_SIZE;
10424 pring->iotag_ctr = 0;
10426 (phba->cfg_hba_queue_depth * 2);
10427 pring->fast_iotag = pring->iotag_max;
10428 pring->num_mask = 0;
10430 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
10431 /* numCiocb and numRiocb are used in config_port */
10432 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
10433 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
10434 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
10435 SLI3_IOCB_CMD_SIZE :
10436 SLI2_IOCB_CMD_SIZE;
10437 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
10438 SLI3_IOCB_RSP_SIZE :
10439 SLI2_IOCB_RSP_SIZE;
10440 pring->iotag_max = phba->cfg_hba_queue_depth;
10441 pring->num_mask = 0;
10443 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
10444 /* numCiocb and numRiocb are used in config_port */
10445 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
10446 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
10447 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
10448 SLI3_IOCB_CMD_SIZE :
10449 SLI2_IOCB_CMD_SIZE;
10450 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
10451 SLI3_IOCB_RSP_SIZE :
10452 SLI2_IOCB_RSP_SIZE;
10453 pring->fast_iotag = 0;
10454 pring->iotag_ctr = 0;
10455 pring->iotag_max = 4096;
10456 pring->lpfc_sli_rcv_async_status =
10457 lpfc_sli_async_event_handler;
10458 pring->num_mask = LPFC_MAX_RING_MASK;
10459 pring->prt[0].profile = 0; /* Mask 0 */
10460 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
10461 pring->prt[0].type = FC_TYPE_ELS;
10462 pring->prt[0].lpfc_sli_rcv_unsol_event =
10463 lpfc_els_unsol_event;
10464 pring->prt[1].profile = 0; /* Mask 1 */
10465 pring->prt[1].rctl = FC_RCTL_ELS_REP;
10466 pring->prt[1].type = FC_TYPE_ELS;
10467 pring->prt[1].lpfc_sli_rcv_unsol_event =
10468 lpfc_els_unsol_event;
10469 pring->prt[2].profile = 0; /* Mask 2 */
10470 /* NameServer Inquiry */
10471 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
10473 pring->prt[2].type = FC_TYPE_CT;
10474 pring->prt[2].lpfc_sli_rcv_unsol_event =
10475 lpfc_ct_unsol_event;
10476 pring->prt[3].profile = 0; /* Mask 3 */
10477 /* NameServer response */
10478 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
10480 pring->prt[3].type = FC_TYPE_CT;
10481 pring->prt[3].lpfc_sli_rcv_unsol_event =
10482 lpfc_ct_unsol_event;
10485 totiocbsize += (pring->sli.sli3.numCiocb *
10486 pring->sli.sli3.sizeCiocb) +
10487 (pring->sli.sli3.numRiocb * pring->sli.sli3.sizeRiocb);
10489 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
10490 /* Too many cmd / rsp ring entries in SLI2 SLIM */
10491 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
10492 "SLI2 SLIM Data: x%x x%lx\n",
10493 phba->brd_no, totiocbsize,
10494 (unsigned long) MAX_SLIM_IOCB_SIZE);
10496 if (phba->cfg_multi_ring_support == 2)
10497 lpfc_extra_ring_setup(phba);
10503 * lpfc_sli4_queue_init - Queue initialization function
10504 * @phba: Pointer to HBA context object.
10506 * lpfc_sli4_queue_init sets up mailbox queues and iocb queues for each
10507 * ring. This function also initializes ring indices of each ring.
10508 * This function is called during the initialization of the SLI
10509 * interface of an HBA.
10510 * This function is called with no lock held and always returns
10514 lpfc_sli4_queue_init(struct lpfc_hba *phba)
10516 struct lpfc_sli *psli;
10517 struct lpfc_sli_ring *pring;
10521 spin_lock_irq(&phba->hbalock);
10522 INIT_LIST_HEAD(&psli->mboxq);
10523 INIT_LIST_HEAD(&psli->mboxq_cmpl);
10524 /* Initialize list headers for txq and txcmplq as double linked lists */
10525 for (i = 0; i < phba->cfg_hdw_queue; i++) {
10526 pring = phba->sli4_hba.hdwq[i].fcp_wq->pring;
10528 pring->ringno = LPFC_FCP_RING;
10529 pring->txcmplq_cnt = 0;
10530 INIT_LIST_HEAD(&pring->txq);
10531 INIT_LIST_HEAD(&pring->txcmplq);
10532 INIT_LIST_HEAD(&pring->iocb_continueq);
10533 spin_lock_init(&pring->ring_lock);
10535 pring = phba->sli4_hba.els_wq->pring;
10537 pring->ringno = LPFC_ELS_RING;
10538 pring->txcmplq_cnt = 0;
10539 INIT_LIST_HEAD(&pring->txq);
10540 INIT_LIST_HEAD(&pring->txcmplq);
10541 INIT_LIST_HEAD(&pring->iocb_continueq);
10542 spin_lock_init(&pring->ring_lock);
10544 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10545 for (i = 0; i < phba->cfg_hdw_queue; i++) {
10546 pring = phba->sli4_hba.hdwq[i].nvme_wq->pring;
10548 pring->ringno = LPFC_FCP_RING;
10549 pring->txcmplq_cnt = 0;
10550 INIT_LIST_HEAD(&pring->txq);
10551 INIT_LIST_HEAD(&pring->txcmplq);
10552 INIT_LIST_HEAD(&pring->iocb_continueq);
10553 spin_lock_init(&pring->ring_lock);
10555 pring = phba->sli4_hba.nvmels_wq->pring;
10557 pring->ringno = LPFC_ELS_RING;
10558 pring->txcmplq_cnt = 0;
10559 INIT_LIST_HEAD(&pring->txq);
10560 INIT_LIST_HEAD(&pring->txcmplq);
10561 INIT_LIST_HEAD(&pring->iocb_continueq);
10562 spin_lock_init(&pring->ring_lock);
10565 spin_unlock_irq(&phba->hbalock);
10569 * lpfc_sli_queue_init - Queue initialization function
10570 * @phba: Pointer to HBA context object.
10572 * lpfc_sli_queue_init sets up mailbox queues and iocb queues for each
10573 * ring. This function also initializes ring indices of each ring.
10574 * This function is called during the initialization of the SLI
10575 * interface of an HBA.
10576 * This function is called with no lock held and always returns
10580 lpfc_sli_queue_init(struct lpfc_hba *phba)
10582 struct lpfc_sli *psli;
10583 struct lpfc_sli_ring *pring;
10587 spin_lock_irq(&phba->hbalock);
10588 INIT_LIST_HEAD(&psli->mboxq);
10589 INIT_LIST_HEAD(&psli->mboxq_cmpl);
10590 /* Initialize list headers for txq and txcmplq as double linked lists */
10591 for (i = 0; i < psli->num_rings; i++) {
10592 pring = &psli->sli3_ring[i];
10594 pring->sli.sli3.next_cmdidx = 0;
10595 pring->sli.sli3.local_getidx = 0;
10596 pring->sli.sli3.cmdidx = 0;
10597 INIT_LIST_HEAD(&pring->iocb_continueq);
10598 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
10599 INIT_LIST_HEAD(&pring->postbufq);
10601 INIT_LIST_HEAD(&pring->txq);
10602 INIT_LIST_HEAD(&pring->txcmplq);
10603 spin_lock_init(&pring->ring_lock);
10605 spin_unlock_irq(&phba->hbalock);
10609 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
10610 * @phba: Pointer to HBA context object.
10612 * This routine flushes the mailbox command subsystem. It will unconditionally
10613 * flush all the mailbox commands in the three possible stages in the mailbox
10614 * command sub-system: pending mailbox command queue; the outstanding mailbox
10615 * command; and completed mailbox command queue. It is caller's responsibility
10616 * to make sure that the driver is in the proper state to flush the mailbox
10617 * command sub-system. Namely, the posting of mailbox commands into the
10618 * pending mailbox command queue from the various clients must be stopped;
10619 * either the HBA is in a state that it will never works on the outstanding
10620 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
10621 * mailbox command has been completed.
10624 lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
10626 LIST_HEAD(completions);
10627 struct lpfc_sli *psli = &phba->sli;
10629 unsigned long iflag;
10631 /* Disable softirqs, including timers from obtaining phba->hbalock */
10632 local_bh_disable();
10634 /* Flush all the mailbox commands in the mbox system */
10635 spin_lock_irqsave(&phba->hbalock, iflag);
10637 /* The pending mailbox command queue */
10638 list_splice_init(&phba->sli.mboxq, &completions);
10639 /* The outstanding active mailbox command */
10640 if (psli->mbox_active) {
10641 list_add_tail(&psli->mbox_active->list, &completions);
10642 psli->mbox_active = NULL;
10643 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
10645 /* The completed mailbox command queue */
10646 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
10647 spin_unlock_irqrestore(&phba->hbalock, iflag);
10649 /* Enable softirqs again, done with phba->hbalock */
10652 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
10653 while (!list_empty(&completions)) {
10654 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
10655 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
10656 if (pmb->mbox_cmpl)
10657 pmb->mbox_cmpl(phba, pmb);
10662 * lpfc_sli_host_down - Vport cleanup function
10663 * @vport: Pointer to virtual port object.
10665 * lpfc_sli_host_down is called to clean up the resources
10666 * associated with a vport before destroying virtual
10667 * port data structures.
10668 * This function does following operations:
10669 * - Free discovery resources associated with this virtual
10671 * - Free iocbs associated with this virtual port in
10673 * - Send abort for all iocb commands associated with this
10674 * vport in txcmplq.
10676 * This function is called with no lock held and always returns 1.
10679 lpfc_sli_host_down(struct lpfc_vport *vport)
10681 LIST_HEAD(completions);
10682 struct lpfc_hba *phba = vport->phba;
10683 struct lpfc_sli *psli = &phba->sli;
10684 struct lpfc_queue *qp = NULL;
10685 struct lpfc_sli_ring *pring;
10686 struct lpfc_iocbq *iocb, *next_iocb;
10688 unsigned long flags = 0;
10689 uint16_t prev_pring_flag;
10691 lpfc_cleanup_discovery_resources(vport);
10693 spin_lock_irqsave(&phba->hbalock, flags);
10696 * Error everything on the txq since these iocbs
10697 * have not been given to the FW yet.
10698 * Also issue ABTS for everything on the txcmplq
10700 if (phba->sli_rev != LPFC_SLI_REV4) {
10701 for (i = 0; i < psli->num_rings; i++) {
10702 pring = &psli->sli3_ring[i];
10703 prev_pring_flag = pring->flag;
10704 /* Only slow rings */
10705 if (pring->ringno == LPFC_ELS_RING) {
10706 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10707 /* Set the lpfc data pending flag */
10708 set_bit(LPFC_DATA_READY, &phba->data_flags);
10710 list_for_each_entry_safe(iocb, next_iocb,
10711 &pring->txq, list) {
10712 if (iocb->vport != vport)
10714 list_move_tail(&iocb->list, &completions);
10716 list_for_each_entry_safe(iocb, next_iocb,
10717 &pring->txcmplq, list) {
10718 if (iocb->vport != vport)
10720 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
10722 pring->flag = prev_pring_flag;
10725 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
10729 if (pring == phba->sli4_hba.els_wq->pring) {
10730 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10731 /* Set the lpfc data pending flag */
10732 set_bit(LPFC_DATA_READY, &phba->data_flags);
10734 prev_pring_flag = pring->flag;
10735 spin_lock_irq(&pring->ring_lock);
10736 list_for_each_entry_safe(iocb, next_iocb,
10737 &pring->txq, list) {
10738 if (iocb->vport != vport)
10740 list_move_tail(&iocb->list, &completions);
10742 spin_unlock_irq(&pring->ring_lock);
10743 list_for_each_entry_safe(iocb, next_iocb,
10744 &pring->txcmplq, list) {
10745 if (iocb->vport != vport)
10747 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
10749 pring->flag = prev_pring_flag;
10752 spin_unlock_irqrestore(&phba->hbalock, flags);
10754 /* Cancel all the IOCBs from the completions list */
10755 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
10761 * lpfc_sli_hba_down - Resource cleanup function for the HBA
10762 * @phba: Pointer to HBA context object.
10764 * This function cleans up all iocb, buffers, mailbox commands
10765 * while shutting down the HBA. This function is called with no
10766 * lock held and always returns 1.
10767 * This function does the following to cleanup driver resources:
10768 * - Free discovery resources for each virtual port
10769 * - Cleanup any pending fabric iocbs
10770 * - Iterate through the iocb txq and free each entry
10772 * - Free up any buffer posted to the HBA
10773 * - Free mailbox commands in the mailbox queue.
10776 lpfc_sli_hba_down(struct lpfc_hba *phba)
10778 LIST_HEAD(completions);
10779 struct lpfc_sli *psli = &phba->sli;
10780 struct lpfc_queue *qp = NULL;
10781 struct lpfc_sli_ring *pring;
10782 struct lpfc_dmabuf *buf_ptr;
10783 unsigned long flags = 0;
10786 /* Shutdown the mailbox command sub-system */
10787 lpfc_sli_mbox_sys_shutdown(phba, LPFC_MBX_WAIT);
10789 lpfc_hba_down_prep(phba);
10791 /* Disable softirqs, including timers from obtaining phba->hbalock */
10792 local_bh_disable();
10794 lpfc_fabric_abort_hba(phba);
10796 spin_lock_irqsave(&phba->hbalock, flags);
10799 * Error everything on the txq since these iocbs
10800 * have not been given to the FW yet.
10802 if (phba->sli_rev != LPFC_SLI_REV4) {
10803 for (i = 0; i < psli->num_rings; i++) {
10804 pring = &psli->sli3_ring[i];
10805 /* Only slow rings */
10806 if (pring->ringno == LPFC_ELS_RING) {
10807 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10808 /* Set the lpfc data pending flag */
10809 set_bit(LPFC_DATA_READY, &phba->data_flags);
10811 list_splice_init(&pring->txq, &completions);
10814 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
10818 spin_lock(&pring->ring_lock);
10819 list_splice_init(&pring->txq, &completions);
10820 spin_unlock(&pring->ring_lock);
10821 if (pring == phba->sli4_hba.els_wq->pring) {
10822 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10823 /* Set the lpfc data pending flag */
10824 set_bit(LPFC_DATA_READY, &phba->data_flags);
10828 spin_unlock_irqrestore(&phba->hbalock, flags);
10830 /* Cancel all the IOCBs from the completions list */
10831 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
10834 spin_lock_irqsave(&phba->hbalock, flags);
10835 list_splice_init(&phba->elsbuf, &completions);
10836 phba->elsbuf_cnt = 0;
10837 phba->elsbuf_prev_cnt = 0;
10838 spin_unlock_irqrestore(&phba->hbalock, flags);
10840 while (!list_empty(&completions)) {
10841 list_remove_head(&completions, buf_ptr,
10842 struct lpfc_dmabuf, list);
10843 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
10847 /* Enable softirqs again, done with phba->hbalock */
10850 /* Return any active mbox cmds */
10851 del_timer_sync(&psli->mbox_tmo);
10853 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
10854 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
10855 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
10861 * lpfc_sli_pcimem_bcopy - SLI memory copy function
10862 * @srcp: Source memory pointer.
10863 * @destp: Destination memory pointer.
10864 * @cnt: Number of words required to be copied.
10866 * This function is used for copying data between driver memory
10867 * and the SLI memory. This function also changes the endianness
10868 * of each word if native endianness is different from SLI
10869 * endianness. This function can be called with or without
10873 lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
10875 uint32_t *src = srcp;
10876 uint32_t *dest = destp;
10880 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
10882 ldata = le32_to_cpu(ldata);
10891 * lpfc_sli_bemem_bcopy - SLI memory copy function
10892 * @srcp: Source memory pointer.
10893 * @destp: Destination memory pointer.
10894 * @cnt: Number of words required to be copied.
10896 * This function is used for copying data between a data structure
10897 * with big endian representation to local endianness.
10898 * This function can be called with or without lock.
10901 lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
10903 uint32_t *src = srcp;
10904 uint32_t *dest = destp;
10908 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
10910 ldata = be32_to_cpu(ldata);
10918 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
10919 * @phba: Pointer to HBA context object.
10920 * @pring: Pointer to driver SLI ring object.
10921 * @mp: Pointer to driver buffer object.
10923 * This function is called with no lock held.
10924 * It always return zero after adding the buffer to the postbufq
10928 lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10929 struct lpfc_dmabuf *mp)
10931 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
10933 spin_lock_irq(&phba->hbalock);
10934 list_add_tail(&mp->list, &pring->postbufq);
10935 pring->postbufq_cnt++;
10936 spin_unlock_irq(&phba->hbalock);
10941 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
10942 * @phba: Pointer to HBA context object.
10944 * When HBQ is enabled, buffers are searched based on tags. This function
10945 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
10946 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
10947 * does not conflict with tags of buffer posted for unsolicited events.
10948 * The function returns the allocated tag. The function is called with
10952 lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
10954 spin_lock_irq(&phba->hbalock);
10955 phba->buffer_tag_count++;
10957 * Always set the QUE_BUFTAG_BIT to distiguish between
10958 * a tag assigned by HBQ.
10960 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
10961 spin_unlock_irq(&phba->hbalock);
10962 return phba->buffer_tag_count;
10966 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
10967 * @phba: Pointer to HBA context object.
10968 * @pring: Pointer to driver SLI ring object.
10969 * @tag: Buffer tag.
10971 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
10972 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
10973 * iocb is posted to the response ring with the tag of the buffer.
10974 * This function searches the pring->postbufq list using the tag
10975 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
10976 * iocb. If the buffer is found then lpfc_dmabuf object of the
10977 * buffer is returned to the caller else NULL is returned.
10978 * This function is called with no lock held.
10980 struct lpfc_dmabuf *
10981 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10984 struct lpfc_dmabuf *mp, *next_mp;
10985 struct list_head *slp = &pring->postbufq;
10987 /* Search postbufq, from the beginning, looking for a match on tag */
10988 spin_lock_irq(&phba->hbalock);
10989 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
10990 if (mp->buffer_tag == tag) {
10991 list_del_init(&mp->list);
10992 pring->postbufq_cnt--;
10993 spin_unlock_irq(&phba->hbalock);
10998 spin_unlock_irq(&phba->hbalock);
10999 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11000 "0402 Cannot find virtual addr for buffer tag on "
11001 "ring %d Data x%lx x%px x%px x%x\n",
11002 pring->ringno, (unsigned long) tag,
11003 slp->next, slp->prev, pring->postbufq_cnt);
11009 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
11010 * @phba: Pointer to HBA context object.
11011 * @pring: Pointer to driver SLI ring object.
11012 * @phys: DMA address of the buffer.
11014 * This function searches the buffer list using the dma_address
11015 * of unsolicited event to find the driver's lpfc_dmabuf object
11016 * corresponding to the dma_address. The function returns the
11017 * lpfc_dmabuf object if a buffer is found else it returns NULL.
11018 * This function is called by the ct and els unsolicited event
11019 * handlers to get the buffer associated with the unsolicited
11022 * This function is called with no lock held.
11024 struct lpfc_dmabuf *
11025 lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
11028 struct lpfc_dmabuf *mp, *next_mp;
11029 struct list_head *slp = &pring->postbufq;
11031 /* Search postbufq, from the beginning, looking for a match on phys */
11032 spin_lock_irq(&phba->hbalock);
11033 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
11034 if (mp->phys == phys) {
11035 list_del_init(&mp->list);
11036 pring->postbufq_cnt--;
11037 spin_unlock_irq(&phba->hbalock);
11042 spin_unlock_irq(&phba->hbalock);
11043 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11044 "0410 Cannot find virtual addr for mapped buf on "
11045 "ring %d Data x%llx x%px x%px x%x\n",
11046 pring->ringno, (unsigned long long)phys,
11047 slp->next, slp->prev, pring->postbufq_cnt);
11052 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
11053 * @phba: Pointer to HBA context object.
11054 * @cmdiocb: Pointer to driver command iocb object.
11055 * @rspiocb: Pointer to driver response iocb object.
11057 * This function is the completion handler for the abort iocbs for
11058 * ELS commands. This function is called from the ELS ring event
11059 * handler with no lock held. This function frees memory resources
11060 * associated with the abort iocb.
11063 lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
11064 struct lpfc_iocbq *rspiocb)
11066 IOCB_t *irsp = &rspiocb->iocb;
11067 uint16_t abort_iotag, abort_context;
11068 struct lpfc_iocbq *abort_iocb = NULL;
11070 if (irsp->ulpStatus) {
11073 * Assume that the port already completed and returned, or
11074 * will return the iocb. Just Log the message.
11076 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
11077 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
11079 spin_lock_irq(&phba->hbalock);
11080 if (phba->sli_rev < LPFC_SLI_REV4) {
11081 if (irsp->ulpCommand == CMD_ABORT_XRI_CX &&
11082 irsp->ulpStatus == IOSTAT_LOCAL_REJECT &&
11083 irsp->un.ulpWord[4] == IOERR_ABORT_REQUESTED) {
11084 spin_unlock_irq(&phba->hbalock);
11087 if (abort_iotag != 0 &&
11088 abort_iotag <= phba->sli.last_iotag)
11090 phba->sli.iocbq_lookup[abort_iotag];
11092 /* For sli4 the abort_tag is the XRI,
11093 * so the abort routine puts the iotag of the iocb
11094 * being aborted in the context field of the abort
11097 abort_iocb = phba->sli.iocbq_lookup[abort_context];
11099 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI,
11100 "0327 Cannot abort els iocb x%px "
11101 "with tag %x context %x, abort status %x, "
11103 abort_iocb, abort_iotag, abort_context,
11104 irsp->ulpStatus, irsp->un.ulpWord[4]);
11106 spin_unlock_irq(&phba->hbalock);
11107 if (irsp->ulpStatus == IOSTAT_LOCAL_REJECT &&
11108 irsp->un.ulpWord[4] == IOERR_SLI_ABORTED)
11109 lpfc_sli_release_iocbq(phba, abort_iocb);
11112 lpfc_sli_release_iocbq(phba, cmdiocb);
11117 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
11118 * @phba: Pointer to HBA context object.
11119 * @cmdiocb: Pointer to driver command iocb object.
11120 * @rspiocb: Pointer to driver response iocb object.
11122 * The function is called from SLI ring event handler with no
11123 * lock held. This function is the completion handler for ELS commands
11124 * which are aborted. The function frees memory resources used for
11125 * the aborted ELS commands.
11128 lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
11129 struct lpfc_iocbq *rspiocb)
11131 IOCB_t *irsp = &rspiocb->iocb;
11133 /* ELS cmd tag <ulpIoTag> completes */
11134 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
11135 "0139 Ignoring ELS cmd tag x%x completion Data: "
11137 irsp->ulpIoTag, irsp->ulpStatus,
11138 irsp->un.ulpWord[4], irsp->ulpTimeout);
11139 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
11140 lpfc_ct_free_iocb(phba, cmdiocb);
11142 lpfc_els_free_iocb(phba, cmdiocb);
11147 * lpfc_sli_abort_iotag_issue - Issue abort for a command iocb
11148 * @phba: Pointer to HBA context object.
11149 * @pring: Pointer to driver SLI ring object.
11150 * @cmdiocb: Pointer to driver command iocb object.
11152 * This function issues an abort iocb for the provided command iocb down to
11153 * the port. Other than the case the outstanding command iocb is an abort
11154 * request, this function issues abort out unconditionally. This function is
11155 * called with hbalock held. The function returns 0 when it fails due to
11156 * memory allocation failure or when the command iocb is an abort request.
11159 lpfc_sli_abort_iotag_issue(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
11160 struct lpfc_iocbq *cmdiocb)
11162 struct lpfc_vport *vport = cmdiocb->vport;
11163 struct lpfc_iocbq *abtsiocbp;
11164 IOCB_t *icmd = NULL;
11165 IOCB_t *iabt = NULL;
11167 unsigned long iflags;
11168 struct lpfc_nodelist *ndlp;
11170 lockdep_assert_held(&phba->hbalock);
11173 * There are certain command types we don't want to abort. And we
11174 * don't want to abort commands that are already in the process of
11177 icmd = &cmdiocb->iocb;
11178 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
11179 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
11180 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
11183 /* issue ABTS for this IOCB based on iotag */
11184 abtsiocbp = __lpfc_sli_get_iocbq(phba);
11185 if (abtsiocbp == NULL)
11188 /* This signals the response to set the correct status
11189 * before calling the completion handler
11191 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
11193 iabt = &abtsiocbp->iocb;
11194 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
11195 iabt->un.acxri.abortContextTag = icmd->ulpContext;
11196 if (phba->sli_rev == LPFC_SLI_REV4) {
11197 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
11198 iabt->un.acxri.abortContextTag = cmdiocb->iotag;
11200 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
11201 if (pring->ringno == LPFC_ELS_RING) {
11202 ndlp = (struct lpfc_nodelist *)(cmdiocb->context1);
11203 iabt->un.acxri.abortContextTag = ndlp->nlp_rpi;
11207 iabt->ulpClass = icmd->ulpClass;
11209 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
11210 abtsiocbp->hba_wqidx = cmdiocb->hba_wqidx;
11211 if (cmdiocb->iocb_flag & LPFC_IO_FCP)
11212 abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
11213 if (cmdiocb->iocb_flag & LPFC_IO_FOF)
11214 abtsiocbp->iocb_flag |= LPFC_IO_FOF;
11216 if (phba->link_state >= LPFC_LINK_UP)
11217 iabt->ulpCommand = CMD_ABORT_XRI_CN;
11219 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
11221 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
11222 abtsiocbp->vport = vport;
11224 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
11225 "0339 Abort xri x%x, original iotag x%x, "
11226 "abort cmd iotag x%x\n",
11227 iabt->un.acxri.abortIoTag,
11228 iabt->un.acxri.abortContextTag,
11231 if (phba->sli_rev == LPFC_SLI_REV4) {
11232 pring = lpfc_sli4_calc_ring(phba, abtsiocbp);
11233 if (unlikely(pring == NULL))
11235 /* Note: both hbalock and ring_lock need to be set here */
11236 spin_lock_irqsave(&pring->ring_lock, iflags);
11237 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
11239 spin_unlock_irqrestore(&pring->ring_lock, iflags);
11241 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
11246 __lpfc_sli_release_iocbq(phba, abtsiocbp);
11249 * Caller to this routine should check for IOCB_ERROR
11250 * and handle it properly. This routine no longer removes
11251 * iocb off txcmplq and call compl in case of IOCB_ERROR.
11257 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
11258 * @phba: Pointer to HBA context object.
11259 * @pring: Pointer to driver SLI ring object.
11260 * @cmdiocb: Pointer to driver command iocb object.
11262 * This function issues an abort iocb for the provided command iocb. In case
11263 * of unloading, the abort iocb will not be issued to commands on the ELS
11264 * ring. Instead, the callback function shall be changed to those commands
11265 * so that nothing happens when them finishes. This function is called with
11266 * hbalock held. The function returns 0 when the command iocb is an abort
11270 lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
11271 struct lpfc_iocbq *cmdiocb)
11273 struct lpfc_vport *vport = cmdiocb->vport;
11274 int retval = IOCB_ERROR;
11275 IOCB_t *icmd = NULL;
11277 lockdep_assert_held(&phba->hbalock);
11280 * There are certain command types we don't want to abort. And we
11281 * don't want to abort commands that are already in the process of
11284 icmd = &cmdiocb->iocb;
11285 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
11286 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
11287 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
11291 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
11292 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
11294 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
11295 goto abort_iotag_exit;
11299 * If we're unloading, don't abort iocb on the ELS ring, but change
11300 * the callback so that nothing happens when it finishes.
11302 if ((vport->load_flag & FC_UNLOADING) &&
11303 (pring->ringno == LPFC_ELS_RING)) {
11304 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
11305 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
11307 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
11308 goto abort_iotag_exit;
11311 /* Now, we try to issue the abort to the cmdiocb out */
11312 retval = lpfc_sli_abort_iotag_issue(phba, pring, cmdiocb);
11316 * Caller to this routine should check for IOCB_ERROR
11317 * and handle it properly. This routine no longer removes
11318 * iocb off txcmplq and call compl in case of IOCB_ERROR.
11324 * lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
11325 * @phba: pointer to lpfc HBA data structure.
11327 * This routine will abort all pending and outstanding iocbs to an HBA.
11330 lpfc_sli_hba_iocb_abort(struct lpfc_hba *phba)
11332 struct lpfc_sli *psli = &phba->sli;
11333 struct lpfc_sli_ring *pring;
11334 struct lpfc_queue *qp = NULL;
11337 if (phba->sli_rev != LPFC_SLI_REV4) {
11338 for (i = 0; i < psli->num_rings; i++) {
11339 pring = &psli->sli3_ring[i];
11340 lpfc_sli_abort_iocb_ring(phba, pring);
11344 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
11348 lpfc_sli_abort_iocb_ring(phba, pring);
11353 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
11354 * @iocbq: Pointer to driver iocb object.
11355 * @vport: Pointer to driver virtual port object.
11356 * @tgt_id: SCSI ID of the target.
11357 * @lun_id: LUN ID of the scsi device.
11358 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
11360 * This function acts as an iocb filter for functions which abort or count
11361 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
11362 * 0 if the filtering criteria is met for the given iocb and will return
11363 * 1 if the filtering criteria is not met.
11364 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
11365 * given iocb is for the SCSI device specified by vport, tgt_id and
11366 * lun_id parameter.
11367 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
11368 * given iocb is for the SCSI target specified by vport and tgt_id
11370 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
11371 * given iocb is for the SCSI host associated with the given vport.
11372 * This function is called with no locks held.
11375 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
11376 uint16_t tgt_id, uint64_t lun_id,
11377 lpfc_ctx_cmd ctx_cmd)
11379 struct lpfc_io_buf *lpfc_cmd;
11382 if (iocbq->vport != vport)
11385 if (!(iocbq->iocb_flag & LPFC_IO_FCP) ||
11386 !(iocbq->iocb_flag & LPFC_IO_ON_TXCMPLQ))
11389 lpfc_cmd = container_of(iocbq, struct lpfc_io_buf, cur_iocbq);
11391 if (lpfc_cmd->pCmd == NULL)
11396 if ((lpfc_cmd->rdata) && (lpfc_cmd->rdata->pnode) &&
11397 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
11398 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
11402 if ((lpfc_cmd->rdata) && (lpfc_cmd->rdata->pnode) &&
11403 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
11406 case LPFC_CTX_HOST:
11410 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
11411 __func__, ctx_cmd);
11419 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
11420 * @vport: Pointer to virtual port.
11421 * @tgt_id: SCSI ID of the target.
11422 * @lun_id: LUN ID of the scsi device.
11423 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
11425 * This function returns number of FCP commands pending for the vport.
11426 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
11427 * commands pending on the vport associated with SCSI device specified
11428 * by tgt_id and lun_id parameters.
11429 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
11430 * commands pending on the vport associated with SCSI target specified
11431 * by tgt_id parameter.
11432 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
11433 * commands pending on the vport.
11434 * This function returns the number of iocbs which satisfy the filter.
11435 * This function is called without any lock held.
11438 lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
11439 lpfc_ctx_cmd ctx_cmd)
11441 struct lpfc_hba *phba = vport->phba;
11442 struct lpfc_iocbq *iocbq;
11445 spin_lock_irq(&phba->hbalock);
11446 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
11447 iocbq = phba->sli.iocbq_lookup[i];
11449 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
11453 spin_unlock_irq(&phba->hbalock);
11459 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
11460 * @phba: Pointer to HBA context object
11461 * @cmdiocb: Pointer to command iocb object.
11462 * @rspiocb: Pointer to response iocb object.
11464 * This function is called when an aborted FCP iocb completes. This
11465 * function is called by the ring event handler with no lock held.
11466 * This function frees the iocb.
11469 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
11470 struct lpfc_iocbq *rspiocb)
11472 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11473 "3096 ABORT_XRI_CN completing on rpi x%x "
11474 "original iotag x%x, abort cmd iotag x%x "
11475 "status 0x%x, reason 0x%x\n",
11476 cmdiocb->iocb.un.acxri.abortContextTag,
11477 cmdiocb->iocb.un.acxri.abortIoTag,
11478 cmdiocb->iotag, rspiocb->iocb.ulpStatus,
11479 rspiocb->iocb.un.ulpWord[4]);
11480 lpfc_sli_release_iocbq(phba, cmdiocb);
11485 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
11486 * @vport: Pointer to virtual port.
11487 * @pring: Pointer to driver SLI ring object.
11488 * @tgt_id: SCSI ID of the target.
11489 * @lun_id: LUN ID of the scsi device.
11490 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
11492 * This function sends an abort command for every SCSI command
11493 * associated with the given virtual port pending on the ring
11494 * filtered by lpfc_sli_validate_fcp_iocb function.
11495 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
11496 * FCP iocbs associated with lun specified by tgt_id and lun_id
11498 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
11499 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
11500 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
11501 * FCP iocbs associated with virtual port.
11502 * This function returns number of iocbs it failed to abort.
11503 * This function is called with no locks held.
11506 lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
11507 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
11509 struct lpfc_hba *phba = vport->phba;
11510 struct lpfc_iocbq *iocbq;
11511 struct lpfc_iocbq *abtsiocb;
11512 struct lpfc_sli_ring *pring_s4;
11513 IOCB_t *cmd = NULL;
11514 int errcnt = 0, ret_val = 0;
11517 /* all I/Os are in process of being flushed */
11518 if (phba->hba_flag & HBA_FCP_IOQ_FLUSH)
11521 for (i = 1; i <= phba->sli.last_iotag; i++) {
11522 iocbq = phba->sli.iocbq_lookup[i];
11524 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
11529 * If the iocbq is already being aborted, don't take a second
11530 * action, but do count it.
11532 if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
11535 /* issue ABTS for this IOCB based on iotag */
11536 abtsiocb = lpfc_sli_get_iocbq(phba);
11537 if (abtsiocb == NULL) {
11542 /* indicate the IO is being aborted by the driver. */
11543 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
11545 cmd = &iocbq->iocb;
11546 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
11547 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
11548 if (phba->sli_rev == LPFC_SLI_REV4)
11549 abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
11551 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
11552 abtsiocb->iocb.ulpLe = 1;
11553 abtsiocb->iocb.ulpClass = cmd->ulpClass;
11554 abtsiocb->vport = vport;
11556 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
11557 abtsiocb->hba_wqidx = iocbq->hba_wqidx;
11558 if (iocbq->iocb_flag & LPFC_IO_FCP)
11559 abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
11560 if (iocbq->iocb_flag & LPFC_IO_FOF)
11561 abtsiocb->iocb_flag |= LPFC_IO_FOF;
11563 if (lpfc_is_link_up(phba))
11564 abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
11566 abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
11568 /* Setup callback routine and issue the command. */
11569 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
11570 if (phba->sli_rev == LPFC_SLI_REV4) {
11571 pring_s4 = lpfc_sli4_calc_ring(phba, iocbq);
11574 ret_val = lpfc_sli_issue_iocb(phba, pring_s4->ringno,
11577 ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
11579 if (ret_val == IOCB_ERROR) {
11580 lpfc_sli_release_iocbq(phba, abtsiocb);
11590 * lpfc_sli_abort_taskmgmt - issue abort for all commands on a host/target/LUN
11591 * @vport: Pointer to virtual port.
11592 * @pring: Pointer to driver SLI ring object.
11593 * @tgt_id: SCSI ID of the target.
11594 * @lun_id: LUN ID of the scsi device.
11595 * @taskmgmt_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
11597 * This function sends an abort command for every SCSI command
11598 * associated with the given virtual port pending on the ring
11599 * filtered by lpfc_sli_validate_fcp_iocb function.
11600 * When taskmgmt_cmd == LPFC_CTX_LUN, the function sends abort only to the
11601 * FCP iocbs associated with lun specified by tgt_id and lun_id
11603 * When taskmgmt_cmd == LPFC_CTX_TGT, the function sends abort only to the
11604 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
11605 * When taskmgmt_cmd == LPFC_CTX_HOST, the function sends abort to all
11606 * FCP iocbs associated with virtual port.
11607 * This function returns number of iocbs it aborted .
11608 * This function is called with no locks held right after a taskmgmt
11612 lpfc_sli_abort_taskmgmt(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
11613 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd cmd)
11615 struct lpfc_hba *phba = vport->phba;
11616 struct lpfc_io_buf *lpfc_cmd;
11617 struct lpfc_iocbq *abtsiocbq;
11618 struct lpfc_nodelist *ndlp;
11619 struct lpfc_iocbq *iocbq;
11621 int sum, i, ret_val;
11622 unsigned long iflags;
11623 struct lpfc_sli_ring *pring_s4 = NULL;
11625 spin_lock_irqsave(&phba->hbalock, iflags);
11627 /* all I/Os are in process of being flushed */
11628 if (phba->hba_flag & HBA_FCP_IOQ_FLUSH) {
11629 spin_unlock_irqrestore(&phba->hbalock, iflags);
11634 for (i = 1; i <= phba->sli.last_iotag; i++) {
11635 iocbq = phba->sli.iocbq_lookup[i];
11637 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
11641 /* Guard against IO completion being called at same time */
11642 lpfc_cmd = container_of(iocbq, struct lpfc_io_buf, cur_iocbq);
11643 spin_lock(&lpfc_cmd->buf_lock);
11645 if (!lpfc_cmd->pCmd) {
11646 spin_unlock(&lpfc_cmd->buf_lock);
11650 if (phba->sli_rev == LPFC_SLI_REV4) {
11652 phba->sli4_hba.hdwq[iocbq->hba_wqidx].fcp_wq->pring;
11654 spin_unlock(&lpfc_cmd->buf_lock);
11657 /* Note: both hbalock and ring_lock must be set here */
11658 spin_lock(&pring_s4->ring_lock);
11662 * If the iocbq is already being aborted, don't take a second
11663 * action, but do count it.
11665 if ((iocbq->iocb_flag & LPFC_DRIVER_ABORTED) ||
11666 !(iocbq->iocb_flag & LPFC_IO_ON_TXCMPLQ)) {
11667 if (phba->sli_rev == LPFC_SLI_REV4)
11668 spin_unlock(&pring_s4->ring_lock);
11669 spin_unlock(&lpfc_cmd->buf_lock);
11673 /* issue ABTS for this IOCB based on iotag */
11674 abtsiocbq = __lpfc_sli_get_iocbq(phba);
11676 if (phba->sli_rev == LPFC_SLI_REV4)
11677 spin_unlock(&pring_s4->ring_lock);
11678 spin_unlock(&lpfc_cmd->buf_lock);
11682 icmd = &iocbq->iocb;
11683 abtsiocbq->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
11684 abtsiocbq->iocb.un.acxri.abortContextTag = icmd->ulpContext;
11685 if (phba->sli_rev == LPFC_SLI_REV4)
11686 abtsiocbq->iocb.un.acxri.abortIoTag =
11687 iocbq->sli4_xritag;
11689 abtsiocbq->iocb.un.acxri.abortIoTag = icmd->ulpIoTag;
11690 abtsiocbq->iocb.ulpLe = 1;
11691 abtsiocbq->iocb.ulpClass = icmd->ulpClass;
11692 abtsiocbq->vport = vport;
11694 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
11695 abtsiocbq->hba_wqidx = iocbq->hba_wqidx;
11696 if (iocbq->iocb_flag & LPFC_IO_FCP)
11697 abtsiocbq->iocb_flag |= LPFC_USE_FCPWQIDX;
11698 if (iocbq->iocb_flag & LPFC_IO_FOF)
11699 abtsiocbq->iocb_flag |= LPFC_IO_FOF;
11701 ndlp = lpfc_cmd->rdata->pnode;
11703 if (lpfc_is_link_up(phba) &&
11704 (ndlp && ndlp->nlp_state == NLP_STE_MAPPED_NODE))
11705 abtsiocbq->iocb.ulpCommand = CMD_ABORT_XRI_CN;
11707 abtsiocbq->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
11709 /* Setup callback routine and issue the command. */
11710 abtsiocbq->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
11713 * Indicate the IO is being aborted by the driver and set
11714 * the caller's flag into the aborted IO.
11716 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
11718 if (phba->sli_rev == LPFC_SLI_REV4) {
11719 ret_val = __lpfc_sli_issue_iocb(phba, pring_s4->ringno,
11721 spin_unlock(&pring_s4->ring_lock);
11723 ret_val = __lpfc_sli_issue_iocb(phba, pring->ringno,
11727 spin_unlock(&lpfc_cmd->buf_lock);
11729 if (ret_val == IOCB_ERROR)
11730 __lpfc_sli_release_iocbq(phba, abtsiocbq);
11734 spin_unlock_irqrestore(&phba->hbalock, iflags);
11739 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
11740 * @phba: Pointer to HBA context object.
11741 * @cmdiocbq: Pointer to command iocb.
11742 * @rspiocbq: Pointer to response iocb.
11744 * This function is the completion handler for iocbs issued using
11745 * lpfc_sli_issue_iocb_wait function. This function is called by the
11746 * ring event handler function without any lock held. This function
11747 * can be called from both worker thread context and interrupt
11748 * context. This function also can be called from other thread which
11749 * cleans up the SLI layer objects.
11750 * This function copy the contents of the response iocb to the
11751 * response iocb memory object provided by the caller of
11752 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
11753 * sleeps for the iocb completion.
11756 lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
11757 struct lpfc_iocbq *cmdiocbq,
11758 struct lpfc_iocbq *rspiocbq)
11760 wait_queue_head_t *pdone_q;
11761 unsigned long iflags;
11762 struct lpfc_io_buf *lpfc_cmd;
11764 spin_lock_irqsave(&phba->hbalock, iflags);
11765 if (cmdiocbq->iocb_flag & LPFC_IO_WAKE_TMO) {
11768 * A time out has occurred for the iocb. If a time out
11769 * completion handler has been supplied, call it. Otherwise,
11770 * just free the iocbq.
11773 spin_unlock_irqrestore(&phba->hbalock, iflags);
11774 cmdiocbq->iocb_cmpl = cmdiocbq->wait_iocb_cmpl;
11775 cmdiocbq->wait_iocb_cmpl = NULL;
11776 if (cmdiocbq->iocb_cmpl)
11777 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, NULL);
11779 lpfc_sli_release_iocbq(phba, cmdiocbq);
11783 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
11784 if (cmdiocbq->context2 && rspiocbq)
11785 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
11786 &rspiocbq->iocb, sizeof(IOCB_t));
11788 /* Set the exchange busy flag for task management commands */
11789 if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) &&
11790 !(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) {
11791 lpfc_cmd = container_of(cmdiocbq, struct lpfc_io_buf,
11793 lpfc_cmd->exch_busy = rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY;
11796 pdone_q = cmdiocbq->context_un.wait_queue;
11799 spin_unlock_irqrestore(&phba->hbalock, iflags);
11804 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
11805 * @phba: Pointer to HBA context object..
11806 * @piocbq: Pointer to command iocb.
11807 * @flag: Flag to test.
11809 * This routine grabs the hbalock and then test the iocb_flag to
11810 * see if the passed in flag is set.
11812 * 1 if flag is set.
11813 * 0 if flag is not set.
11816 lpfc_chk_iocb_flg(struct lpfc_hba *phba,
11817 struct lpfc_iocbq *piocbq, uint32_t flag)
11819 unsigned long iflags;
11822 spin_lock_irqsave(&phba->hbalock, iflags);
11823 ret = piocbq->iocb_flag & flag;
11824 spin_unlock_irqrestore(&phba->hbalock, iflags);
11830 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
11831 * @phba: Pointer to HBA context object..
11832 * @pring: Pointer to sli ring.
11833 * @piocb: Pointer to command iocb.
11834 * @prspiocbq: Pointer to response iocb.
11835 * @timeout: Timeout in number of seconds.
11837 * This function issues the iocb to firmware and waits for the
11838 * iocb to complete. The iocb_cmpl field of the shall be used
11839 * to handle iocbs which time out. If the field is NULL, the
11840 * function shall free the iocbq structure. If more clean up is
11841 * needed, the caller is expected to provide a completion function
11842 * that will provide the needed clean up. If the iocb command is
11843 * not completed within timeout seconds, the function will either
11844 * free the iocbq structure (if iocb_cmpl == NULL) or execute the
11845 * completion function set in the iocb_cmpl field and then return
11846 * a status of IOCB_TIMEDOUT. The caller should not free the iocb
11847 * resources if this function returns IOCB_TIMEDOUT.
11848 * The function waits for the iocb completion using an
11849 * non-interruptible wait.
11850 * This function will sleep while waiting for iocb completion.
11851 * So, this function should not be called from any context which
11852 * does not allow sleeping. Due to the same reason, this function
11853 * cannot be called with interrupt disabled.
11854 * This function assumes that the iocb completions occur while
11855 * this function sleep. So, this function cannot be called from
11856 * the thread which process iocb completion for this ring.
11857 * This function clears the iocb_flag of the iocb object before
11858 * issuing the iocb and the iocb completion handler sets this
11859 * flag and wakes this thread when the iocb completes.
11860 * The contents of the response iocb will be copied to prspiocbq
11861 * by the completion handler when the command completes.
11862 * This function returns IOCB_SUCCESS when success.
11863 * This function is called with no lock held.
11866 lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
11867 uint32_t ring_number,
11868 struct lpfc_iocbq *piocb,
11869 struct lpfc_iocbq *prspiocbq,
11872 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
11873 long timeleft, timeout_req = 0;
11874 int retval = IOCB_SUCCESS;
11876 struct lpfc_iocbq *iocb;
11878 int txcmplq_cnt = 0;
11879 struct lpfc_sli_ring *pring;
11880 unsigned long iflags;
11881 bool iocb_completed = true;
11883 if (phba->sli_rev >= LPFC_SLI_REV4)
11884 pring = lpfc_sli4_calc_ring(phba, piocb);
11886 pring = &phba->sli.sli3_ring[ring_number];
11888 * If the caller has provided a response iocbq buffer, then context2
11889 * is NULL or its an error.
11892 if (piocb->context2)
11894 piocb->context2 = prspiocbq;
11897 piocb->wait_iocb_cmpl = piocb->iocb_cmpl;
11898 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
11899 piocb->context_un.wait_queue = &done_q;
11900 piocb->iocb_flag &= ~(LPFC_IO_WAKE | LPFC_IO_WAKE_TMO);
11902 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
11903 if (lpfc_readl(phba->HCregaddr, &creg_val))
11905 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
11906 writel(creg_val, phba->HCregaddr);
11907 readl(phba->HCregaddr); /* flush */
11910 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb,
11911 SLI_IOCB_RET_IOCB);
11912 if (retval == IOCB_SUCCESS) {
11913 timeout_req = msecs_to_jiffies(timeout * 1000);
11914 timeleft = wait_event_timeout(done_q,
11915 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
11917 spin_lock_irqsave(&phba->hbalock, iflags);
11918 if (!(piocb->iocb_flag & LPFC_IO_WAKE)) {
11921 * IOCB timed out. Inform the wake iocb wait
11922 * completion function and set local status
11925 iocb_completed = false;
11926 piocb->iocb_flag |= LPFC_IO_WAKE_TMO;
11928 spin_unlock_irqrestore(&phba->hbalock, iflags);
11929 if (iocb_completed) {
11930 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11931 "0331 IOCB wake signaled\n");
11932 /* Note: we are not indicating if the IOCB has a success
11933 * status or not - that's for the caller to check.
11934 * IOCB_SUCCESS means just that the command was sent and
11935 * completed. Not that it completed successfully.
11937 } else if (timeleft == 0) {
11938 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11939 "0338 IOCB wait timeout error - no "
11940 "wake response Data x%x\n", timeout);
11941 retval = IOCB_TIMEDOUT;
11943 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11944 "0330 IOCB wake NOT set, "
11946 timeout, (timeleft / jiffies));
11947 retval = IOCB_TIMEDOUT;
11949 } else if (retval == IOCB_BUSY) {
11950 if (phba->cfg_log_verbose & LOG_SLI) {
11951 list_for_each_entry(iocb, &pring->txq, list) {
11954 list_for_each_entry(iocb, &pring->txcmplq, list) {
11957 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11958 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
11959 phba->iocb_cnt, txq_cnt, txcmplq_cnt);
11963 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11964 "0332 IOCB wait issue failed, Data x%x\n",
11966 retval = IOCB_ERROR;
11969 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
11970 if (lpfc_readl(phba->HCregaddr, &creg_val))
11972 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
11973 writel(creg_val, phba->HCregaddr);
11974 readl(phba->HCregaddr); /* flush */
11978 piocb->context2 = NULL;
11980 piocb->context_un.wait_queue = NULL;
11981 piocb->iocb_cmpl = NULL;
11986 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
11987 * @phba: Pointer to HBA context object.
11988 * @pmboxq: Pointer to driver mailbox object.
11989 * @timeout: Timeout in number of seconds.
11991 * This function issues the mailbox to firmware and waits for the
11992 * mailbox command to complete. If the mailbox command is not
11993 * completed within timeout seconds, it returns MBX_TIMEOUT.
11994 * The function waits for the mailbox completion using an
11995 * interruptible wait. If the thread is woken up due to a
11996 * signal, MBX_TIMEOUT error is returned to the caller. Caller
11997 * should not free the mailbox resources, if this function returns
11999 * This function will sleep while waiting for mailbox completion.
12000 * So, this function should not be called from any context which
12001 * does not allow sleeping. Due to the same reason, this function
12002 * cannot be called with interrupt disabled.
12003 * This function assumes that the mailbox completion occurs while
12004 * this function sleep. So, this function cannot be called from
12005 * the worker thread which processes mailbox completion.
12006 * This function is called in the context of HBA management
12008 * This function returns MBX_SUCCESS when successful.
12009 * This function is called with no lock held.
12012 lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
12015 struct completion mbox_done;
12017 unsigned long flag;
12019 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
12020 /* setup wake call as IOCB callback */
12021 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
12023 /* setup context3 field to pass wait_queue pointer to wake function */
12024 init_completion(&mbox_done);
12025 pmboxq->context3 = &mbox_done;
12026 /* now issue the command */
12027 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
12028 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
12029 wait_for_completion_timeout(&mbox_done,
12030 msecs_to_jiffies(timeout * 1000));
12032 spin_lock_irqsave(&phba->hbalock, flag);
12033 pmboxq->context3 = NULL;
12035 * if LPFC_MBX_WAKE flag is set the mailbox is completed
12036 * else do not free the resources.
12038 if (pmboxq->mbox_flag & LPFC_MBX_WAKE) {
12039 retval = MBX_SUCCESS;
12041 retval = MBX_TIMEOUT;
12042 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12044 spin_unlock_irqrestore(&phba->hbalock, flag);
12050 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
12051 * @phba: Pointer to HBA context.
12053 * This function is called to shutdown the driver's mailbox sub-system.
12054 * It first marks the mailbox sub-system is in a block state to prevent
12055 * the asynchronous mailbox command from issued off the pending mailbox
12056 * command queue. If the mailbox command sub-system shutdown is due to
12057 * HBA error conditions such as EEH or ERATT, this routine shall invoke
12058 * the mailbox sub-system flush routine to forcefully bring down the
12059 * mailbox sub-system. Otherwise, if it is due to normal condition (such
12060 * as with offline or HBA function reset), this routine will wait for the
12061 * outstanding mailbox command to complete before invoking the mailbox
12062 * sub-system flush routine to gracefully bring down mailbox sub-system.
12065 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba, int mbx_action)
12067 struct lpfc_sli *psli = &phba->sli;
12068 unsigned long timeout;
12070 if (mbx_action == LPFC_MBX_NO_WAIT) {
12071 /* delay 100ms for port state */
12073 lpfc_sli_mbox_sys_flush(phba);
12076 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
12078 /* Disable softirqs, including timers from obtaining phba->hbalock */
12079 local_bh_disable();
12081 spin_lock_irq(&phba->hbalock);
12082 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
12084 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
12085 /* Determine how long we might wait for the active mailbox
12086 * command to be gracefully completed by firmware.
12088 if (phba->sli.mbox_active)
12089 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
12090 phba->sli.mbox_active) *
12092 spin_unlock_irq(&phba->hbalock);
12094 /* Enable softirqs again, done with phba->hbalock */
12097 while (phba->sli.mbox_active) {
12098 /* Check active mailbox complete status every 2ms */
12100 if (time_after(jiffies, timeout))
12101 /* Timeout, let the mailbox flush routine to
12102 * forcefully release active mailbox command
12107 spin_unlock_irq(&phba->hbalock);
12109 /* Enable softirqs again, done with phba->hbalock */
12113 lpfc_sli_mbox_sys_flush(phba);
12117 * lpfc_sli_eratt_read - read sli-3 error attention events
12118 * @phba: Pointer to HBA context.
12120 * This function is called to read the SLI3 device error attention registers
12121 * for possible error attention events. The caller must hold the hostlock
12122 * with spin_lock_irq().
12124 * This function returns 1 when there is Error Attention in the Host Attention
12125 * Register and returns 0 otherwise.
12128 lpfc_sli_eratt_read(struct lpfc_hba *phba)
12132 /* Read chip Host Attention (HA) register */
12133 if (lpfc_readl(phba->HAregaddr, &ha_copy))
12136 if (ha_copy & HA_ERATT) {
12137 /* Read host status register to retrieve error event */
12138 if (lpfc_sli_read_hs(phba))
12141 /* Check if there is a deferred error condition is active */
12142 if ((HS_FFER1 & phba->work_hs) &&
12143 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
12144 HS_FFER6 | HS_FFER7 | HS_FFER8) & phba->work_hs)) {
12145 phba->hba_flag |= DEFER_ERATT;
12146 /* Clear all interrupt enable conditions */
12147 writel(0, phba->HCregaddr);
12148 readl(phba->HCregaddr);
12151 /* Set the driver HA work bitmap */
12152 phba->work_ha |= HA_ERATT;
12153 /* Indicate polling handles this ERATT */
12154 phba->hba_flag |= HBA_ERATT_HANDLED;
12160 /* Set the driver HS work bitmap */
12161 phba->work_hs |= UNPLUG_ERR;
12162 /* Set the driver HA work bitmap */
12163 phba->work_ha |= HA_ERATT;
12164 /* Indicate polling handles this ERATT */
12165 phba->hba_flag |= HBA_ERATT_HANDLED;
12170 * lpfc_sli4_eratt_read - read sli-4 error attention events
12171 * @phba: Pointer to HBA context.
12173 * This function is called to read the SLI4 device error attention registers
12174 * for possible error attention events. The caller must hold the hostlock
12175 * with spin_lock_irq().
12177 * This function returns 1 when there is Error Attention in the Host Attention
12178 * Register and returns 0 otherwise.
12181 lpfc_sli4_eratt_read(struct lpfc_hba *phba)
12183 uint32_t uerr_sta_hi, uerr_sta_lo;
12184 uint32_t if_type, portsmphr;
12185 struct lpfc_register portstat_reg;
12188 * For now, use the SLI4 device internal unrecoverable error
12189 * registers for error attention. This can be changed later.
12191 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
12193 case LPFC_SLI_INTF_IF_TYPE_0:
12194 if (lpfc_readl(phba->sli4_hba.u.if_type0.UERRLOregaddr,
12196 lpfc_readl(phba->sli4_hba.u.if_type0.UERRHIregaddr,
12198 phba->work_hs |= UNPLUG_ERR;
12199 phba->work_ha |= HA_ERATT;
12200 phba->hba_flag |= HBA_ERATT_HANDLED;
12203 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
12204 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
12205 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12206 "1423 HBA Unrecoverable error: "
12207 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
12208 "ue_mask_lo_reg=0x%x, "
12209 "ue_mask_hi_reg=0x%x\n",
12210 uerr_sta_lo, uerr_sta_hi,
12211 phba->sli4_hba.ue_mask_lo,
12212 phba->sli4_hba.ue_mask_hi);
12213 phba->work_status[0] = uerr_sta_lo;
12214 phba->work_status[1] = uerr_sta_hi;
12215 phba->work_ha |= HA_ERATT;
12216 phba->hba_flag |= HBA_ERATT_HANDLED;
12220 case LPFC_SLI_INTF_IF_TYPE_2:
12221 case LPFC_SLI_INTF_IF_TYPE_6:
12222 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
12223 &portstat_reg.word0) ||
12224 lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
12226 phba->work_hs |= UNPLUG_ERR;
12227 phba->work_ha |= HA_ERATT;
12228 phba->hba_flag |= HBA_ERATT_HANDLED;
12231 if (bf_get(lpfc_sliport_status_err, &portstat_reg)) {
12232 phba->work_status[0] =
12233 readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
12234 phba->work_status[1] =
12235 readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
12236 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12237 "2885 Port Status Event: "
12238 "port status reg 0x%x, "
12239 "port smphr reg 0x%x, "
12240 "error 1=0x%x, error 2=0x%x\n",
12241 portstat_reg.word0,
12243 phba->work_status[0],
12244 phba->work_status[1]);
12245 phba->work_ha |= HA_ERATT;
12246 phba->hba_flag |= HBA_ERATT_HANDLED;
12250 case LPFC_SLI_INTF_IF_TYPE_1:
12252 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12253 "2886 HBA Error Attention on unsupported "
12254 "if type %d.", if_type);
12262 * lpfc_sli_check_eratt - check error attention events
12263 * @phba: Pointer to HBA context.
12265 * This function is called from timer soft interrupt context to check HBA's
12266 * error attention register bit for error attention events.
12268 * This function returns 1 when there is Error Attention in the Host Attention
12269 * Register and returns 0 otherwise.
12272 lpfc_sli_check_eratt(struct lpfc_hba *phba)
12276 /* If somebody is waiting to handle an eratt, don't process it
12277 * here. The brdkill function will do this.
12279 if (phba->link_flag & LS_IGNORE_ERATT)
12282 /* Check if interrupt handler handles this ERATT */
12283 spin_lock_irq(&phba->hbalock);
12284 if (phba->hba_flag & HBA_ERATT_HANDLED) {
12285 /* Interrupt handler has handled ERATT */
12286 spin_unlock_irq(&phba->hbalock);
12291 * If there is deferred error attention, do not check for error
12294 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
12295 spin_unlock_irq(&phba->hbalock);
12299 /* If PCI channel is offline, don't process it */
12300 if (unlikely(pci_channel_offline(phba->pcidev))) {
12301 spin_unlock_irq(&phba->hbalock);
12305 switch (phba->sli_rev) {
12306 case LPFC_SLI_REV2:
12307 case LPFC_SLI_REV3:
12308 /* Read chip Host Attention (HA) register */
12309 ha_copy = lpfc_sli_eratt_read(phba);
12311 case LPFC_SLI_REV4:
12312 /* Read device Uncoverable Error (UERR) registers */
12313 ha_copy = lpfc_sli4_eratt_read(phba);
12316 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12317 "0299 Invalid SLI revision (%d)\n",
12322 spin_unlock_irq(&phba->hbalock);
12328 * lpfc_intr_state_check - Check device state for interrupt handling
12329 * @phba: Pointer to HBA context.
12331 * This inline routine checks whether a device or its PCI slot is in a state
12332 * that the interrupt should be handled.
12334 * This function returns 0 if the device or the PCI slot is in a state that
12335 * interrupt should be handled, otherwise -EIO.
12338 lpfc_intr_state_check(struct lpfc_hba *phba)
12340 /* If the pci channel is offline, ignore all the interrupts */
12341 if (unlikely(pci_channel_offline(phba->pcidev)))
12344 /* Update device level interrupt statistics */
12345 phba->sli.slistat.sli_intr++;
12347 /* Ignore all interrupts during initialization. */
12348 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
12355 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
12356 * @irq: Interrupt number.
12357 * @dev_id: The device context pointer.
12359 * This function is directly called from the PCI layer as an interrupt
12360 * service routine when device with SLI-3 interface spec is enabled with
12361 * MSI-X multi-message interrupt mode and there are slow-path events in
12362 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
12363 * interrupt mode, this function is called as part of the device-level
12364 * interrupt handler. When the PCI slot is in error recovery or the HBA
12365 * is undergoing initialization, the interrupt handler will not process
12366 * the interrupt. The link attention and ELS ring attention events are
12367 * handled by the worker thread. The interrupt handler signals the worker
12368 * thread and returns for these events. This function is called without
12369 * any lock held. It gets the hbalock to access and update SLI data
12372 * This function returns IRQ_HANDLED when interrupt is handled else it
12373 * returns IRQ_NONE.
12376 lpfc_sli_sp_intr_handler(int irq, void *dev_id)
12378 struct lpfc_hba *phba;
12379 uint32_t ha_copy, hc_copy;
12380 uint32_t work_ha_copy;
12381 unsigned long status;
12382 unsigned long iflag;
12385 MAILBOX_t *mbox, *pmbox;
12386 struct lpfc_vport *vport;
12387 struct lpfc_nodelist *ndlp;
12388 struct lpfc_dmabuf *mp;
12393 * Get the driver's phba structure from the dev_id and
12394 * assume the HBA is not interrupting.
12396 phba = (struct lpfc_hba *)dev_id;
12398 if (unlikely(!phba))
12402 * Stuff needs to be attented to when this function is invoked as an
12403 * individual interrupt handler in MSI-X multi-message interrupt mode
12405 if (phba->intr_type == MSIX) {
12406 /* Check device state for handling interrupt */
12407 if (lpfc_intr_state_check(phba))
12409 /* Need to read HA REG for slow-path events */
12410 spin_lock_irqsave(&phba->hbalock, iflag);
12411 if (lpfc_readl(phba->HAregaddr, &ha_copy))
12413 /* If somebody is waiting to handle an eratt don't process it
12414 * here. The brdkill function will do this.
12416 if (phba->link_flag & LS_IGNORE_ERATT)
12417 ha_copy &= ~HA_ERATT;
12418 /* Check the need for handling ERATT in interrupt handler */
12419 if (ha_copy & HA_ERATT) {
12420 if (phba->hba_flag & HBA_ERATT_HANDLED)
12421 /* ERATT polling has handled ERATT */
12422 ha_copy &= ~HA_ERATT;
12424 /* Indicate interrupt handler handles ERATT */
12425 phba->hba_flag |= HBA_ERATT_HANDLED;
12429 * If there is deferred error attention, do not check for any
12432 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
12433 spin_unlock_irqrestore(&phba->hbalock, iflag);
12437 /* Clear up only attention source related to slow-path */
12438 if (lpfc_readl(phba->HCregaddr, &hc_copy))
12441 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
12442 HC_LAINT_ENA | HC_ERINT_ENA),
12444 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
12446 writel(hc_copy, phba->HCregaddr);
12447 readl(phba->HAregaddr); /* flush */
12448 spin_unlock_irqrestore(&phba->hbalock, iflag);
12450 ha_copy = phba->ha_copy;
12452 work_ha_copy = ha_copy & phba->work_ha_mask;
12454 if (work_ha_copy) {
12455 if (work_ha_copy & HA_LATT) {
12456 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
12458 * Turn off Link Attention interrupts
12459 * until CLEAR_LA done
12461 spin_lock_irqsave(&phba->hbalock, iflag);
12462 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
12463 if (lpfc_readl(phba->HCregaddr, &control))
12465 control &= ~HC_LAINT_ENA;
12466 writel(control, phba->HCregaddr);
12467 readl(phba->HCregaddr); /* flush */
12468 spin_unlock_irqrestore(&phba->hbalock, iflag);
12471 work_ha_copy &= ~HA_LATT;
12474 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
12476 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
12477 * the only slow ring.
12479 status = (work_ha_copy &
12480 (HA_RXMASK << (4*LPFC_ELS_RING)));
12481 status >>= (4*LPFC_ELS_RING);
12482 if (status & HA_RXMASK) {
12483 spin_lock_irqsave(&phba->hbalock, iflag);
12484 if (lpfc_readl(phba->HCregaddr, &control))
12487 lpfc_debugfs_slow_ring_trc(phba,
12488 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
12490 (uint32_t)phba->sli.slistat.sli_intr);
12492 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
12493 lpfc_debugfs_slow_ring_trc(phba,
12494 "ISR Disable ring:"
12495 "pwork:x%x hawork:x%x wait:x%x",
12496 phba->work_ha, work_ha_copy,
12497 (uint32_t)((unsigned long)
12498 &phba->work_waitq));
12501 ~(HC_R0INT_ENA << LPFC_ELS_RING);
12502 writel(control, phba->HCregaddr);
12503 readl(phba->HCregaddr); /* flush */
12506 lpfc_debugfs_slow_ring_trc(phba,
12507 "ISR slow ring: pwork:"
12508 "x%x hawork:x%x wait:x%x",
12509 phba->work_ha, work_ha_copy,
12510 (uint32_t)((unsigned long)
12511 &phba->work_waitq));
12513 spin_unlock_irqrestore(&phba->hbalock, iflag);
12516 spin_lock_irqsave(&phba->hbalock, iflag);
12517 if (work_ha_copy & HA_ERATT) {
12518 if (lpfc_sli_read_hs(phba))
12521 * Check if there is a deferred error condition
12524 if ((HS_FFER1 & phba->work_hs) &&
12525 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
12526 HS_FFER6 | HS_FFER7 | HS_FFER8) &
12528 phba->hba_flag |= DEFER_ERATT;
12529 /* Clear all interrupt enable conditions */
12530 writel(0, phba->HCregaddr);
12531 readl(phba->HCregaddr);
12535 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
12536 pmb = phba->sli.mbox_active;
12537 pmbox = &pmb->u.mb;
12539 vport = pmb->vport;
12541 /* First check out the status word */
12542 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
12543 if (pmbox->mbxOwner != OWN_HOST) {
12544 spin_unlock_irqrestore(&phba->hbalock, iflag);
12546 * Stray Mailbox Interrupt, mbxCommand <cmd>
12547 * mbxStatus <status>
12549 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
12551 "(%d):0304 Stray Mailbox "
12552 "Interrupt mbxCommand x%x "
12554 (vport ? vport->vpi : 0),
12557 /* clear mailbox attention bit */
12558 work_ha_copy &= ~HA_MBATT;
12560 phba->sli.mbox_active = NULL;
12561 spin_unlock_irqrestore(&phba->hbalock, iflag);
12562 phba->last_completion_time = jiffies;
12563 del_timer(&phba->sli.mbox_tmo);
12564 if (pmb->mbox_cmpl) {
12565 lpfc_sli_pcimem_bcopy(mbox, pmbox,
12567 if (pmb->out_ext_byte_len &&
12569 lpfc_sli_pcimem_bcopy(
12572 pmb->out_ext_byte_len);
12574 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
12575 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
12577 lpfc_debugfs_disc_trc(vport,
12578 LPFC_DISC_TRC_MBOX_VPORT,
12579 "MBOX dflt rpi: : "
12580 "status:x%x rpi:x%x",
12581 (uint32_t)pmbox->mbxStatus,
12582 pmbox->un.varWords[0], 0);
12584 if (!pmbox->mbxStatus) {
12585 mp = (struct lpfc_dmabuf *)
12587 ndlp = (struct lpfc_nodelist *)
12590 /* Reg_LOGIN of dflt RPI was
12591 * successful. new lets get
12592 * rid of the RPI using the
12593 * same mbox buffer.
12595 lpfc_unreg_login(phba,
12597 pmbox->un.varWords[0],
12600 lpfc_mbx_cmpl_dflt_rpi;
12602 pmb->ctx_ndlp = ndlp;
12603 pmb->vport = vport;
12604 rc = lpfc_sli_issue_mbox(phba,
12607 if (rc != MBX_BUSY)
12608 lpfc_printf_log(phba,
12610 LOG_MBOX | LOG_SLI,
12611 "0350 rc should have"
12612 "been MBX_BUSY\n");
12613 if (rc != MBX_NOT_FINISHED)
12614 goto send_current_mbox;
12618 &phba->pport->work_port_lock,
12620 phba->pport->work_port_events &=
12622 spin_unlock_irqrestore(
12623 &phba->pport->work_port_lock,
12625 lpfc_mbox_cmpl_put(phba, pmb);
12628 spin_unlock_irqrestore(&phba->hbalock, iflag);
12630 if ((work_ha_copy & HA_MBATT) &&
12631 (phba->sli.mbox_active == NULL)) {
12633 /* Process next mailbox command if there is one */
12635 rc = lpfc_sli_issue_mbox(phba, NULL,
12637 } while (rc == MBX_NOT_FINISHED);
12638 if (rc != MBX_SUCCESS)
12639 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
12640 LOG_SLI, "0349 rc should be "
12644 spin_lock_irqsave(&phba->hbalock, iflag);
12645 phba->work_ha |= work_ha_copy;
12646 spin_unlock_irqrestore(&phba->hbalock, iflag);
12647 lpfc_worker_wake_up(phba);
12649 return IRQ_HANDLED;
12651 spin_unlock_irqrestore(&phba->hbalock, iflag);
12652 return IRQ_HANDLED;
12654 } /* lpfc_sli_sp_intr_handler */
12657 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
12658 * @irq: Interrupt number.
12659 * @dev_id: The device context pointer.
12661 * This function is directly called from the PCI layer as an interrupt
12662 * service routine when device with SLI-3 interface spec is enabled with
12663 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
12664 * ring event in the HBA. However, when the device is enabled with either
12665 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
12666 * device-level interrupt handler. When the PCI slot is in error recovery
12667 * or the HBA is undergoing initialization, the interrupt handler will not
12668 * process the interrupt. The SCSI FCP fast-path ring event are handled in
12669 * the intrrupt context. This function is called without any lock held.
12670 * It gets the hbalock to access and update SLI data structures.
12672 * This function returns IRQ_HANDLED when interrupt is handled else it
12673 * returns IRQ_NONE.
12676 lpfc_sli_fp_intr_handler(int irq, void *dev_id)
12678 struct lpfc_hba *phba;
12680 unsigned long status;
12681 unsigned long iflag;
12682 struct lpfc_sli_ring *pring;
12684 /* Get the driver's phba structure from the dev_id and
12685 * assume the HBA is not interrupting.
12687 phba = (struct lpfc_hba *) dev_id;
12689 if (unlikely(!phba))
12693 * Stuff needs to be attented to when this function is invoked as an
12694 * individual interrupt handler in MSI-X multi-message interrupt mode
12696 if (phba->intr_type == MSIX) {
12697 /* Check device state for handling interrupt */
12698 if (lpfc_intr_state_check(phba))
12700 /* Need to read HA REG for FCP ring and other ring events */
12701 if (lpfc_readl(phba->HAregaddr, &ha_copy))
12702 return IRQ_HANDLED;
12703 /* Clear up only attention source related to fast-path */
12704 spin_lock_irqsave(&phba->hbalock, iflag);
12706 * If there is deferred error attention, do not check for
12709 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
12710 spin_unlock_irqrestore(&phba->hbalock, iflag);
12713 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
12715 readl(phba->HAregaddr); /* flush */
12716 spin_unlock_irqrestore(&phba->hbalock, iflag);
12718 ha_copy = phba->ha_copy;
12721 * Process all events on FCP ring. Take the optimized path for FCP IO.
12723 ha_copy &= ~(phba->work_ha_mask);
12725 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
12726 status >>= (4*LPFC_FCP_RING);
12727 pring = &phba->sli.sli3_ring[LPFC_FCP_RING];
12728 if (status & HA_RXMASK)
12729 lpfc_sli_handle_fast_ring_event(phba, pring, status);
12731 if (phba->cfg_multi_ring_support == 2) {
12733 * Process all events on extra ring. Take the optimized path
12734 * for extra ring IO.
12736 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
12737 status >>= (4*LPFC_EXTRA_RING);
12738 if (status & HA_RXMASK) {
12739 lpfc_sli_handle_fast_ring_event(phba,
12740 &phba->sli.sli3_ring[LPFC_EXTRA_RING],
12744 return IRQ_HANDLED;
12745 } /* lpfc_sli_fp_intr_handler */
12748 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
12749 * @irq: Interrupt number.
12750 * @dev_id: The device context pointer.
12752 * This function is the HBA device-level interrupt handler to device with
12753 * SLI-3 interface spec, called from the PCI layer when either MSI or
12754 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
12755 * requires driver attention. This function invokes the slow-path interrupt
12756 * attention handling function and fast-path interrupt attention handling
12757 * function in turn to process the relevant HBA attention events. This
12758 * function is called without any lock held. It gets the hbalock to access
12759 * and update SLI data structures.
12761 * This function returns IRQ_HANDLED when interrupt is handled, else it
12762 * returns IRQ_NONE.
12765 lpfc_sli_intr_handler(int irq, void *dev_id)
12767 struct lpfc_hba *phba;
12768 irqreturn_t sp_irq_rc, fp_irq_rc;
12769 unsigned long status1, status2;
12773 * Get the driver's phba structure from the dev_id and
12774 * assume the HBA is not interrupting.
12776 phba = (struct lpfc_hba *) dev_id;
12778 if (unlikely(!phba))
12781 /* Check device state for handling interrupt */
12782 if (lpfc_intr_state_check(phba))
12785 spin_lock(&phba->hbalock);
12786 if (lpfc_readl(phba->HAregaddr, &phba->ha_copy)) {
12787 spin_unlock(&phba->hbalock);
12788 return IRQ_HANDLED;
12791 if (unlikely(!phba->ha_copy)) {
12792 spin_unlock(&phba->hbalock);
12794 } else if (phba->ha_copy & HA_ERATT) {
12795 if (phba->hba_flag & HBA_ERATT_HANDLED)
12796 /* ERATT polling has handled ERATT */
12797 phba->ha_copy &= ~HA_ERATT;
12799 /* Indicate interrupt handler handles ERATT */
12800 phba->hba_flag |= HBA_ERATT_HANDLED;
12804 * If there is deferred error attention, do not check for any interrupt.
12806 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
12807 spin_unlock(&phba->hbalock);
12811 /* Clear attention sources except link and error attentions */
12812 if (lpfc_readl(phba->HCregaddr, &hc_copy)) {
12813 spin_unlock(&phba->hbalock);
12814 return IRQ_HANDLED;
12816 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
12817 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
12819 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
12820 writel(hc_copy, phba->HCregaddr);
12821 readl(phba->HAregaddr); /* flush */
12822 spin_unlock(&phba->hbalock);
12825 * Invokes slow-path host attention interrupt handling as appropriate.
12828 /* status of events with mailbox and link attention */
12829 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
12831 /* status of events with ELS ring */
12832 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
12833 status2 >>= (4*LPFC_ELS_RING);
12835 if (status1 || (status2 & HA_RXMASK))
12836 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
12838 sp_irq_rc = IRQ_NONE;
12841 * Invoke fast-path host attention interrupt handling as appropriate.
12844 /* status of events with FCP ring */
12845 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
12846 status1 >>= (4*LPFC_FCP_RING);
12848 /* status of events with extra ring */
12849 if (phba->cfg_multi_ring_support == 2) {
12850 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
12851 status2 >>= (4*LPFC_EXTRA_RING);
12855 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
12856 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
12858 fp_irq_rc = IRQ_NONE;
12860 /* Return device-level interrupt handling status */
12861 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
12862 } /* lpfc_sli_intr_handler */
12865 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
12866 * @phba: pointer to lpfc hba data structure.
12868 * This routine is invoked by the worker thread to process all the pending
12869 * SLI4 els abort xri events.
12871 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
12873 struct lpfc_cq_event *cq_event;
12875 /* First, declare the els xri abort event has been handled */
12876 spin_lock_irq(&phba->hbalock);
12877 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
12878 spin_unlock_irq(&phba->hbalock);
12879 /* Now, handle all the els xri abort events */
12880 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
12881 /* Get the first event from the head of the event queue */
12882 spin_lock_irq(&phba->hbalock);
12883 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
12884 cq_event, struct lpfc_cq_event, list);
12885 spin_unlock_irq(&phba->hbalock);
12886 /* Notify aborted XRI for ELS work queue */
12887 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
12888 /* Free the event processed back to the free pool */
12889 lpfc_sli4_cq_event_release(phba, cq_event);
12894 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
12895 * @phba: pointer to lpfc hba data structure
12896 * @pIocbIn: pointer to the rspiocbq
12897 * @pIocbOut: pointer to the cmdiocbq
12898 * @wcqe: pointer to the complete wcqe
12900 * This routine transfers the fields of a command iocbq to a response iocbq
12901 * by copying all the IOCB fields from command iocbq and transferring the
12902 * completion status information from the complete wcqe.
12905 lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
12906 struct lpfc_iocbq *pIocbIn,
12907 struct lpfc_iocbq *pIocbOut,
12908 struct lpfc_wcqe_complete *wcqe)
12911 unsigned long iflags;
12912 uint32_t status, max_response;
12913 struct lpfc_dmabuf *dmabuf;
12914 struct ulp_bde64 *bpl, bde;
12915 size_t offset = offsetof(struct lpfc_iocbq, iocb);
12917 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
12918 sizeof(struct lpfc_iocbq) - offset);
12919 /* Map WCQE parameters into irspiocb parameters */
12920 status = bf_get(lpfc_wcqe_c_status, wcqe);
12921 pIocbIn->iocb.ulpStatus = (status & LPFC_IOCB_STATUS_MASK);
12922 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
12923 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
12924 pIocbIn->iocb.un.fcpi.fcpi_parm =
12925 pIocbOut->iocb.un.fcpi.fcpi_parm -
12926 wcqe->total_data_placed;
12928 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
12930 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
12931 switch (pIocbOut->iocb.ulpCommand) {
12932 case CMD_ELS_REQUEST64_CR:
12933 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
12934 bpl = (struct ulp_bde64 *)dmabuf->virt;
12935 bde.tus.w = le32_to_cpu(bpl[1].tus.w);
12936 max_response = bde.tus.f.bdeSize;
12938 case CMD_GEN_REQUEST64_CR:
12940 if (!pIocbOut->context3)
12942 numBdes = pIocbOut->iocb.un.genreq64.bdl.bdeSize/
12943 sizeof(struct ulp_bde64);
12944 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
12945 bpl = (struct ulp_bde64 *)dmabuf->virt;
12946 for (i = 0; i < numBdes; i++) {
12947 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
12948 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
12949 max_response += bde.tus.f.bdeSize;
12953 max_response = wcqe->total_data_placed;
12956 if (max_response < wcqe->total_data_placed)
12957 pIocbIn->iocb.un.genreq64.bdl.bdeSize = max_response;
12959 pIocbIn->iocb.un.genreq64.bdl.bdeSize =
12960 wcqe->total_data_placed;
12963 /* Convert BG errors for completion status */
12964 if (status == CQE_STATUS_DI_ERROR) {
12965 pIocbIn->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
12967 if (bf_get(lpfc_wcqe_c_bg_edir, wcqe))
12968 pIocbIn->iocb.un.ulpWord[4] = IOERR_RX_DMA_FAILED;
12970 pIocbIn->iocb.un.ulpWord[4] = IOERR_TX_DMA_FAILED;
12972 pIocbIn->iocb.unsli3.sli3_bg.bgstat = 0;
12973 if (bf_get(lpfc_wcqe_c_bg_ge, wcqe)) /* Guard Check failed */
12974 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12975 BGS_GUARD_ERR_MASK;
12976 if (bf_get(lpfc_wcqe_c_bg_ae, wcqe)) /* App Tag Check failed */
12977 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12978 BGS_APPTAG_ERR_MASK;
12979 if (bf_get(lpfc_wcqe_c_bg_re, wcqe)) /* Ref Tag Check failed */
12980 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12981 BGS_REFTAG_ERR_MASK;
12983 /* Check to see if there was any good data before the error */
12984 if (bf_get(lpfc_wcqe_c_bg_tdpv, wcqe)) {
12985 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12986 BGS_HI_WATER_MARK_PRESENT_MASK;
12987 pIocbIn->iocb.unsli3.sli3_bg.bghm =
12988 wcqe->total_data_placed;
12992 * Set ALL the error bits to indicate we don't know what
12993 * type of error it is.
12995 if (!pIocbIn->iocb.unsli3.sli3_bg.bgstat)
12996 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12997 (BGS_REFTAG_ERR_MASK | BGS_APPTAG_ERR_MASK |
12998 BGS_GUARD_ERR_MASK);
13001 /* Pick up HBA exchange busy condition */
13002 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
13003 spin_lock_irqsave(&phba->hbalock, iflags);
13004 pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY;
13005 spin_unlock_irqrestore(&phba->hbalock, iflags);
13010 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
13011 * @phba: Pointer to HBA context object.
13012 * @wcqe: Pointer to work-queue completion queue entry.
13014 * This routine handles an ELS work-queue completion event and construct
13015 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
13016 * discovery engine to handle.
13018 * Return: Pointer to the receive IOCBQ, NULL otherwise.
13020 static struct lpfc_iocbq *
13021 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
13022 struct lpfc_iocbq *irspiocbq)
13024 struct lpfc_sli_ring *pring;
13025 struct lpfc_iocbq *cmdiocbq;
13026 struct lpfc_wcqe_complete *wcqe;
13027 unsigned long iflags;
13029 pring = lpfc_phba_elsring(phba);
13030 if (unlikely(!pring))
13033 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
13034 pring->stats.iocb_event++;
13035 /* Look up the ELS command IOCB and create pseudo response IOCB */
13036 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
13037 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13038 if (unlikely(!cmdiocbq)) {
13039 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13040 "0386 ELS complete with no corresponding "
13041 "cmdiocb: 0x%x 0x%x 0x%x 0x%x\n",
13042 wcqe->word0, wcqe->total_data_placed,
13043 wcqe->parameter, wcqe->word3);
13044 lpfc_sli_release_iocbq(phba, irspiocbq);
13048 spin_lock_irqsave(&pring->ring_lock, iflags);
13049 /* Put the iocb back on the txcmplq */
13050 lpfc_sli_ringtxcmpl_put(phba, pring, cmdiocbq);
13051 spin_unlock_irqrestore(&pring->ring_lock, iflags);
13053 /* Fake the irspiocbq and copy necessary response information */
13054 lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe);
13059 inline struct lpfc_cq_event *
13060 lpfc_cq_event_setup(struct lpfc_hba *phba, void *entry, int size)
13062 struct lpfc_cq_event *cq_event;
13064 /* Allocate a new internal CQ_EVENT entry */
13065 cq_event = lpfc_sli4_cq_event_alloc(phba);
13067 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13068 "0602 Failed to alloc CQ_EVENT entry\n");
13072 /* Move the CQE into the event */
13073 memcpy(&cq_event->cqe, entry, size);
13078 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
13079 * @phba: Pointer to HBA context object.
13080 * @cqe: Pointer to mailbox completion queue entry.
13082 * This routine process a mailbox completion queue entry with asynchrous
13085 * Return: true if work posted to worker thread, otherwise false.
13088 lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
13090 struct lpfc_cq_event *cq_event;
13091 unsigned long iflags;
13093 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
13094 "0392 Async Event: word0:x%x, word1:x%x, "
13095 "word2:x%x, word3:x%x\n", mcqe->word0,
13096 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
13098 cq_event = lpfc_cq_event_setup(phba, mcqe, sizeof(struct lpfc_mcqe));
13101 spin_lock_irqsave(&phba->hbalock, iflags);
13102 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
13103 /* Set the async event flag */
13104 phba->hba_flag |= ASYNC_EVENT;
13105 spin_unlock_irqrestore(&phba->hbalock, iflags);
13111 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
13112 * @phba: Pointer to HBA context object.
13113 * @cqe: Pointer to mailbox completion queue entry.
13115 * This routine process a mailbox completion queue entry with mailbox
13116 * completion event.
13118 * Return: true if work posted to worker thread, otherwise false.
13121 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
13123 uint32_t mcqe_status;
13124 MAILBOX_t *mbox, *pmbox;
13125 struct lpfc_mqe *mqe;
13126 struct lpfc_vport *vport;
13127 struct lpfc_nodelist *ndlp;
13128 struct lpfc_dmabuf *mp;
13129 unsigned long iflags;
13131 bool workposted = false;
13134 /* If not a mailbox complete MCQE, out by checking mailbox consume */
13135 if (!bf_get(lpfc_trailer_completed, mcqe))
13136 goto out_no_mqe_complete;
13138 /* Get the reference to the active mbox command */
13139 spin_lock_irqsave(&phba->hbalock, iflags);
13140 pmb = phba->sli.mbox_active;
13141 if (unlikely(!pmb)) {
13142 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
13143 "1832 No pending MBOX command to handle\n");
13144 spin_unlock_irqrestore(&phba->hbalock, iflags);
13145 goto out_no_mqe_complete;
13147 spin_unlock_irqrestore(&phba->hbalock, iflags);
13149 pmbox = (MAILBOX_t *)&pmb->u.mqe;
13151 vport = pmb->vport;
13153 /* Reset heartbeat timer */
13154 phba->last_completion_time = jiffies;
13155 del_timer(&phba->sli.mbox_tmo);
13157 /* Move mbox data to caller's mailbox region, do endian swapping */
13158 if (pmb->mbox_cmpl && mbox)
13159 lpfc_sli4_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
13162 * For mcqe errors, conditionally move a modified error code to
13163 * the mbox so that the error will not be missed.
13165 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
13166 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
13167 if (bf_get(lpfc_mqe_status, mqe) == MBX_SUCCESS)
13168 bf_set(lpfc_mqe_status, mqe,
13169 (LPFC_MBX_ERROR_RANGE | mcqe_status));
13171 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
13172 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
13173 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
13174 "MBOX dflt rpi: status:x%x rpi:x%x",
13176 pmbox->un.varWords[0], 0);
13177 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
13178 mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
13179 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
13180 /* Reg_LOGIN of dflt RPI was successful. Now lets get
13181 * RID of the PPI using the same mbox buffer.
13183 lpfc_unreg_login(phba, vport->vpi,
13184 pmbox->un.varWords[0], pmb);
13185 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
13187 pmb->ctx_ndlp = ndlp;
13188 pmb->vport = vport;
13189 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
13190 if (rc != MBX_BUSY)
13191 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
13192 LOG_SLI, "0385 rc should "
13193 "have been MBX_BUSY\n");
13194 if (rc != MBX_NOT_FINISHED)
13195 goto send_current_mbox;
13198 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
13199 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
13200 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
13202 /* There is mailbox completion work to do */
13203 spin_lock_irqsave(&phba->hbalock, iflags);
13204 __lpfc_mbox_cmpl_put(phba, pmb);
13205 phba->work_ha |= HA_MBATT;
13206 spin_unlock_irqrestore(&phba->hbalock, iflags);
13210 spin_lock_irqsave(&phba->hbalock, iflags);
13211 /* Release the mailbox command posting token */
13212 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
13213 /* Setting active mailbox pointer need to be in sync to flag clear */
13214 phba->sli.mbox_active = NULL;
13215 spin_unlock_irqrestore(&phba->hbalock, iflags);
13216 /* Wake up worker thread to post the next pending mailbox command */
13217 lpfc_worker_wake_up(phba);
13218 out_no_mqe_complete:
13219 if (bf_get(lpfc_trailer_consumed, mcqe))
13220 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
13225 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
13226 * @phba: Pointer to HBA context object.
13227 * @cqe: Pointer to mailbox completion queue entry.
13229 * This routine process a mailbox completion queue entry, it invokes the
13230 * proper mailbox complete handling or asynchrous event handling routine
13231 * according to the MCQE's async bit.
13233 * Return: true if work posted to worker thread, otherwise false.
13236 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13237 struct lpfc_cqe *cqe)
13239 struct lpfc_mcqe mcqe;
13244 /* Copy the mailbox MCQE and convert endian order as needed */
13245 lpfc_sli4_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
13247 /* Invoke the proper event handling routine */
13248 if (!bf_get(lpfc_trailer_async, &mcqe))
13249 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
13251 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
13256 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
13257 * @phba: Pointer to HBA context object.
13258 * @cq: Pointer to associated CQ
13259 * @wcqe: Pointer to work-queue completion queue entry.
13261 * This routine handles an ELS work-queue completion event.
13263 * Return: true if work posted to worker thread, otherwise false.
13266 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13267 struct lpfc_wcqe_complete *wcqe)
13269 struct lpfc_iocbq *irspiocbq;
13270 unsigned long iflags;
13271 struct lpfc_sli_ring *pring = cq->pring;
13273 int txcmplq_cnt = 0;
13274 int fcp_txcmplq_cnt = 0;
13276 /* Check for response status */
13277 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
13278 /* Log the error status */
13279 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
13280 "0357 ELS CQE error: status=x%x: "
13281 "CQE: %08x %08x %08x %08x\n",
13282 bf_get(lpfc_wcqe_c_status, wcqe),
13283 wcqe->word0, wcqe->total_data_placed,
13284 wcqe->parameter, wcqe->word3);
13287 /* Get an irspiocbq for later ELS response processing use */
13288 irspiocbq = lpfc_sli_get_iocbq(phba);
13290 if (!list_empty(&pring->txq))
13292 if (!list_empty(&pring->txcmplq))
13294 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13295 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
13296 "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n",
13297 txq_cnt, phba->iocb_cnt,
13303 /* Save off the slow-path queue event for work thread to process */
13304 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
13305 spin_lock_irqsave(&phba->hbalock, iflags);
13306 list_add_tail(&irspiocbq->cq_event.list,
13307 &phba->sli4_hba.sp_queue_event);
13308 phba->hba_flag |= HBA_SP_QUEUE_EVT;
13309 spin_unlock_irqrestore(&phba->hbalock, iflags);
13315 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
13316 * @phba: Pointer to HBA context object.
13317 * @wcqe: Pointer to work-queue completion queue entry.
13319 * This routine handles slow-path WQ entry consumed event by invoking the
13320 * proper WQ release routine to the slow-path WQ.
13323 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
13324 struct lpfc_wcqe_release *wcqe)
13326 /* sanity check on queue memory */
13327 if (unlikely(!phba->sli4_hba.els_wq))
13329 /* Check for the slow-path ELS work queue */
13330 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
13331 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
13332 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
13334 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13335 "2579 Slow-path wqe consume event carries "
13336 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
13337 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
13338 phba->sli4_hba.els_wq->queue_id);
13342 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
13343 * @phba: Pointer to HBA context object.
13344 * @cq: Pointer to a WQ completion queue.
13345 * @wcqe: Pointer to work-queue completion queue entry.
13347 * This routine handles an XRI abort event.
13349 * Return: true if work posted to worker thread, otherwise false.
13352 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
13353 struct lpfc_queue *cq,
13354 struct sli4_wcqe_xri_aborted *wcqe)
13356 bool workposted = false;
13357 struct lpfc_cq_event *cq_event;
13358 unsigned long iflags;
13360 switch (cq->subtype) {
13362 lpfc_sli4_fcp_xri_aborted(phba, wcqe, cq->hdwq);
13363 workposted = false;
13365 case LPFC_NVME_LS: /* NVME LS uses ELS resources */
13367 cq_event = lpfc_cq_event_setup(
13368 phba, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
13371 cq_event->hdwq = cq->hdwq;
13372 spin_lock_irqsave(&phba->hbalock, iflags);
13373 list_add_tail(&cq_event->list,
13374 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
13375 /* Set the els xri abort event flag */
13376 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
13377 spin_unlock_irqrestore(&phba->hbalock, iflags);
13381 /* Notify aborted XRI for NVME work queue */
13382 if (phba->nvmet_support)
13383 lpfc_sli4_nvmet_xri_aborted(phba, wcqe);
13385 lpfc_sli4_nvme_xri_aborted(phba, wcqe, cq->hdwq);
13387 workposted = false;
13390 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13391 "0603 Invalid CQ subtype %d: "
13392 "%08x %08x %08x %08x\n",
13393 cq->subtype, wcqe->word0, wcqe->parameter,
13394 wcqe->word2, wcqe->word3);
13395 workposted = false;
13401 #define FC_RCTL_MDS_DIAGS 0xF4
13404 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
13405 * @phba: Pointer to HBA context object.
13406 * @rcqe: Pointer to receive-queue completion queue entry.
13408 * This routine process a receive-queue completion queue entry.
13410 * Return: true if work posted to worker thread, otherwise false.
13413 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
13415 bool workposted = false;
13416 struct fc_frame_header *fc_hdr;
13417 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
13418 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
13419 struct lpfc_nvmet_tgtport *tgtp;
13420 struct hbq_dmabuf *dma_buf;
13421 uint32_t status, rq_id;
13422 unsigned long iflags;
13424 /* sanity check on queue memory */
13425 if (unlikely(!hrq) || unlikely(!drq))
13428 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
13429 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
13431 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
13432 if (rq_id != hrq->queue_id)
13435 status = bf_get(lpfc_rcqe_status, rcqe);
13437 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
13438 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13439 "2537 Receive Frame Truncated!!\n");
13441 case FC_STATUS_RQ_SUCCESS:
13442 spin_lock_irqsave(&phba->hbalock, iflags);
13443 lpfc_sli4_rq_release(hrq, drq);
13444 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
13446 hrq->RQ_no_buf_found++;
13447 spin_unlock_irqrestore(&phba->hbalock, iflags);
13451 hrq->RQ_buf_posted--;
13452 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
13454 fc_hdr = (struct fc_frame_header *)dma_buf->hbuf.virt;
13456 if (fc_hdr->fh_r_ctl == FC_RCTL_MDS_DIAGS ||
13457 fc_hdr->fh_r_ctl == FC_RCTL_DD_UNSOL_DATA) {
13458 spin_unlock_irqrestore(&phba->hbalock, iflags);
13459 /* Handle MDS Loopback frames */
13460 lpfc_sli4_handle_mds_loopback(phba->pport, dma_buf);
13464 /* save off the frame for the work thread to process */
13465 list_add_tail(&dma_buf->cq_event.list,
13466 &phba->sli4_hba.sp_queue_event);
13467 /* Frame received */
13468 phba->hba_flag |= HBA_SP_QUEUE_EVT;
13469 spin_unlock_irqrestore(&phba->hbalock, iflags);
13472 case FC_STATUS_INSUFF_BUF_FRM_DISC:
13473 if (phba->nvmet_support) {
13474 tgtp = phba->targetport->private;
13475 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_NVME,
13476 "6402 RQE Error x%x, posted %d err_cnt "
13478 status, hrq->RQ_buf_posted,
13479 hrq->RQ_no_posted_buf,
13480 atomic_read(&tgtp->rcv_fcp_cmd_in),
13481 atomic_read(&tgtp->rcv_fcp_cmd_out),
13482 atomic_read(&tgtp->xmt_fcp_release));
13486 case FC_STATUS_INSUFF_BUF_NEED_BUF:
13487 hrq->RQ_no_posted_buf++;
13488 /* Post more buffers if possible */
13489 spin_lock_irqsave(&phba->hbalock, iflags);
13490 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
13491 spin_unlock_irqrestore(&phba->hbalock, iflags);
13500 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
13501 * @phba: Pointer to HBA context object.
13502 * @cq: Pointer to the completion queue.
13503 * @cqe: Pointer to a completion queue entry.
13505 * This routine process a slow-path work-queue or receive queue completion queue
13508 * Return: true if work posted to worker thread, otherwise false.
13511 lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13512 struct lpfc_cqe *cqe)
13514 struct lpfc_cqe cqevt;
13515 bool workposted = false;
13517 /* Copy the work queue CQE and convert endian order if needed */
13518 lpfc_sli4_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
13520 /* Check and process for different type of WCQE and dispatch */
13521 switch (bf_get(lpfc_cqe_code, &cqevt)) {
13522 case CQE_CODE_COMPL_WQE:
13523 /* Process the WQ/RQ complete event */
13524 phba->last_completion_time = jiffies;
13525 workposted = lpfc_sli4_sp_handle_els_wcqe(phba, cq,
13526 (struct lpfc_wcqe_complete *)&cqevt);
13528 case CQE_CODE_RELEASE_WQE:
13529 /* Process the WQ release event */
13530 lpfc_sli4_sp_handle_rel_wcqe(phba,
13531 (struct lpfc_wcqe_release *)&cqevt);
13533 case CQE_CODE_XRI_ABORTED:
13534 /* Process the WQ XRI abort event */
13535 phba->last_completion_time = jiffies;
13536 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
13537 (struct sli4_wcqe_xri_aborted *)&cqevt);
13539 case CQE_CODE_RECEIVE:
13540 case CQE_CODE_RECEIVE_V1:
13541 /* Process the RQ event */
13542 phba->last_completion_time = jiffies;
13543 workposted = lpfc_sli4_sp_handle_rcqe(phba,
13544 (struct lpfc_rcqe *)&cqevt);
13547 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13548 "0388 Not a valid WCQE code: x%x\n",
13549 bf_get(lpfc_cqe_code, &cqevt));
13556 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
13557 * @phba: Pointer to HBA context object.
13558 * @eqe: Pointer to fast-path event queue entry.
13560 * This routine process a event queue entry from the slow-path event queue.
13561 * It will check the MajorCode and MinorCode to determine this is for a
13562 * completion event on a completion queue, if not, an error shall be logged
13563 * and just return. Otherwise, it will get to the corresponding completion
13564 * queue and process all the entries on that completion queue, rearm the
13565 * completion queue, and then return.
13569 lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
13570 struct lpfc_queue *speq)
13572 struct lpfc_queue *cq = NULL, *childq;
13575 /* Get the reference to the corresponding CQ */
13576 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
13578 list_for_each_entry(childq, &speq->child_list, list) {
13579 if (childq->queue_id == cqid) {
13584 if (unlikely(!cq)) {
13585 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
13586 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13587 "0365 Slow-path CQ identifier "
13588 "(%d) does not exist\n", cqid);
13592 /* Save EQ associated with this CQ */
13593 cq->assoc_qp = speq;
13595 if (!queue_work_on(cq->chann, phba->wq, &cq->spwork))
13596 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13597 "0390 Cannot schedule soft IRQ "
13598 "for CQ eqcqid=%d, cqid=%d on CPU %d\n",
13599 cqid, cq->queue_id, raw_smp_processor_id());
13603 * __lpfc_sli4_process_cq - Process elements of a CQ
13604 * @phba: Pointer to HBA context object.
13605 * @cq: Pointer to CQ to be processed
13606 * @handler: Routine to process each cqe
13607 * @delay: Pointer to usdelay to set in case of rescheduling of the handler
13609 * This routine processes completion queue entries in a CQ. While a valid
13610 * queue element is found, the handler is called. During processing checks
13611 * are made for periodic doorbell writes to let the hardware know of
13612 * element consumption.
13614 * If the max limit on cqes to process is hit, or there are no more valid
13615 * entries, the loop stops. If we processed a sufficient number of elements,
13616 * meaning there is sufficient load, rather than rearming and generating
13617 * another interrupt, a cq rescheduling delay will be set. A delay of 0
13618 * indicates no rescheduling.
13620 * Returns True if work scheduled, False otherwise.
13623 __lpfc_sli4_process_cq(struct lpfc_hba *phba, struct lpfc_queue *cq,
13624 bool (*handler)(struct lpfc_hba *, struct lpfc_queue *,
13625 struct lpfc_cqe *), unsigned long *delay)
13627 struct lpfc_cqe *cqe;
13628 bool workposted = false;
13629 int count = 0, consumed = 0;
13632 /* default - no reschedule */
13635 if (cmpxchg(&cq->queue_claimed, 0, 1) != 0)
13636 goto rearm_and_exit;
13638 /* Process all the entries to the CQ */
13640 cqe = lpfc_sli4_cq_get(cq);
13642 workposted |= handler(phba, cq, cqe);
13643 __lpfc_sli4_consume_cqe(phba, cq, cqe);
13646 if (!(++count % cq->max_proc_limit))
13649 if (!(count % cq->notify_interval)) {
13650 phba->sli4_hba.sli4_write_cq_db(phba, cq, consumed,
13655 if (count == LPFC_NVMET_CQ_NOTIFY)
13656 cq->q_flag |= HBA_NVMET_CQ_NOTIFY;
13658 cqe = lpfc_sli4_cq_get(cq);
13660 if (count >= phba->cfg_cq_poll_threshold) {
13665 /* Track the max number of CQEs processed in 1 EQ */
13666 if (count > cq->CQ_max_cqe)
13667 cq->CQ_max_cqe = count;
13669 cq->assoc_qp->EQ_cqe_cnt += count;
13671 /* Catch the no cq entry condition */
13672 if (unlikely(count == 0))
13673 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
13674 "0369 No entry from completion queue "
13675 "qid=%d\n", cq->queue_id);
13677 cq->queue_claimed = 0;
13680 phba->sli4_hba.sli4_write_cq_db(phba, cq, consumed,
13681 arm ? LPFC_QUEUE_REARM : LPFC_QUEUE_NOARM);
13687 * lpfc_sli4_sp_process_cq - Process a slow-path event queue entry
13688 * @cq: pointer to CQ to process
13690 * This routine calls the cq processing routine with a handler specific
13691 * to the type of queue bound to it.
13693 * The CQ routine returns two values: the first is the calling status,
13694 * which indicates whether work was queued to the background discovery
13695 * thread. If true, the routine should wakeup the discovery thread;
13696 * the second is the delay parameter. If non-zero, rather than rearming
13697 * the CQ and yet another interrupt, the CQ handler should be queued so
13698 * that it is processed in a subsequent polling action. The value of
13699 * the delay indicates when to reschedule it.
13702 __lpfc_sli4_sp_process_cq(struct lpfc_queue *cq)
13704 struct lpfc_hba *phba = cq->phba;
13705 unsigned long delay;
13706 bool workposted = false;
13708 /* Process and rearm the CQ */
13709 switch (cq->type) {
13711 workposted |= __lpfc_sli4_process_cq(phba, cq,
13712 lpfc_sli4_sp_handle_mcqe,
13716 if (cq->subtype == LPFC_FCP || cq->subtype == LPFC_NVME)
13717 workposted |= __lpfc_sli4_process_cq(phba, cq,
13718 lpfc_sli4_fp_handle_cqe,
13721 workposted |= __lpfc_sli4_process_cq(phba, cq,
13722 lpfc_sli4_sp_handle_cqe,
13726 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13727 "0370 Invalid completion queue type (%d)\n",
13733 if (!queue_delayed_work_on(cq->chann, phba->wq,
13734 &cq->sched_spwork, delay))
13735 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13736 "0394 Cannot schedule soft IRQ "
13737 "for cqid=%d on CPU %d\n",
13738 cq->queue_id, cq->chann);
13741 /* wake up worker thread if there are works to be done */
13743 lpfc_worker_wake_up(phba);
13747 * lpfc_sli4_sp_process_cq - slow-path work handler when started by
13749 * @work: pointer to work element
13751 * translates from the work handler and calls the slow-path handler.
13754 lpfc_sli4_sp_process_cq(struct work_struct *work)
13756 struct lpfc_queue *cq = container_of(work, struct lpfc_queue, spwork);
13758 __lpfc_sli4_sp_process_cq(cq);
13762 * lpfc_sli4_dly_sp_process_cq - slow-path work handler when started by timer
13763 * @work: pointer to work element
13765 * translates from the work handler and calls the slow-path handler.
13768 lpfc_sli4_dly_sp_process_cq(struct work_struct *work)
13770 struct lpfc_queue *cq = container_of(to_delayed_work(work),
13771 struct lpfc_queue, sched_spwork);
13773 __lpfc_sli4_sp_process_cq(cq);
13777 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
13778 * @phba: Pointer to HBA context object.
13779 * @cq: Pointer to associated CQ
13780 * @wcqe: Pointer to work-queue completion queue entry.
13782 * This routine process a fast-path work queue completion entry from fast-path
13783 * event queue for FCP command response completion.
13786 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13787 struct lpfc_wcqe_complete *wcqe)
13789 struct lpfc_sli_ring *pring = cq->pring;
13790 struct lpfc_iocbq *cmdiocbq;
13791 struct lpfc_iocbq irspiocbq;
13792 unsigned long iflags;
13794 /* Check for response status */
13795 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
13796 /* If resource errors reported from HBA, reduce queue
13797 * depth of the SCSI device.
13799 if (((bf_get(lpfc_wcqe_c_status, wcqe) ==
13800 IOSTAT_LOCAL_REJECT)) &&
13801 ((wcqe->parameter & IOERR_PARAM_MASK) ==
13802 IOERR_NO_RESOURCES))
13803 phba->lpfc_rampdown_queue_depth(phba);
13805 /* Log the error status */
13806 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
13807 "0373 FCP CQE error: status=x%x: "
13808 "CQE: %08x %08x %08x %08x\n",
13809 bf_get(lpfc_wcqe_c_status, wcqe),
13810 wcqe->word0, wcqe->total_data_placed,
13811 wcqe->parameter, wcqe->word3);
13814 /* Look up the FCP command IOCB and create pseudo response IOCB */
13815 spin_lock_irqsave(&pring->ring_lock, iflags);
13816 pring->stats.iocb_event++;
13817 spin_unlock_irqrestore(&pring->ring_lock, iflags);
13818 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
13819 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13820 if (unlikely(!cmdiocbq)) {
13821 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13822 "0374 FCP complete with no corresponding "
13823 "cmdiocb: iotag (%d)\n",
13824 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13827 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
13828 cmdiocbq->isr_timestamp = cq->isr_timestamp;
13830 if (cmdiocbq->iocb_cmpl == NULL) {
13831 if (cmdiocbq->wqe_cmpl) {
13832 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
13833 spin_lock_irqsave(&phba->hbalock, iflags);
13834 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
13835 spin_unlock_irqrestore(&phba->hbalock, iflags);
13838 /* Pass the cmd_iocb and the wcqe to the upper layer */
13839 (cmdiocbq->wqe_cmpl)(phba, cmdiocbq, wcqe);
13842 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13843 "0375 FCP cmdiocb not callback function "
13845 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13849 /* Fake the irspiocb and copy necessary response information */
13850 lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
13852 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
13853 spin_lock_irqsave(&phba->hbalock, iflags);
13854 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
13855 spin_unlock_irqrestore(&phba->hbalock, iflags);
13858 /* Pass the cmd_iocb and the rsp state to the upper layer */
13859 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
13863 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
13864 * @phba: Pointer to HBA context object.
13865 * @cq: Pointer to completion queue.
13866 * @wcqe: Pointer to work-queue completion queue entry.
13868 * This routine handles an fast-path WQ entry consumed event by invoking the
13869 * proper WQ release routine to the slow-path WQ.
13872 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13873 struct lpfc_wcqe_release *wcqe)
13875 struct lpfc_queue *childwq;
13876 bool wqid_matched = false;
13879 /* Check for fast-path FCP work queue release */
13880 hba_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
13881 list_for_each_entry(childwq, &cq->child_list, list) {
13882 if (childwq->queue_id == hba_wqid) {
13883 lpfc_sli4_wq_release(childwq,
13884 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
13885 if (childwq->q_flag & HBA_NVMET_WQFULL)
13886 lpfc_nvmet_wqfull_process(phba, childwq);
13887 wqid_matched = true;
13891 /* Report warning log message if no match found */
13892 if (wqid_matched != true)
13893 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13894 "2580 Fast-path wqe consume event carries "
13895 "miss-matched qid: wcqe-qid=x%x\n", hba_wqid);
13899 * lpfc_sli4_nvmet_handle_rcqe - Process a receive-queue completion queue entry
13900 * @phba: Pointer to HBA context object.
13901 * @rcqe: Pointer to receive-queue completion queue entry.
13903 * This routine process a receive-queue completion queue entry.
13905 * Return: true if work posted to worker thread, otherwise false.
13908 lpfc_sli4_nvmet_handle_rcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13909 struct lpfc_rcqe *rcqe)
13911 bool workposted = false;
13912 struct lpfc_queue *hrq;
13913 struct lpfc_queue *drq;
13914 struct rqb_dmabuf *dma_buf;
13915 struct fc_frame_header *fc_hdr;
13916 struct lpfc_nvmet_tgtport *tgtp;
13917 uint32_t status, rq_id;
13918 unsigned long iflags;
13919 uint32_t fctl, idx;
13921 if ((phba->nvmet_support == 0) ||
13922 (phba->sli4_hba.nvmet_cqset == NULL))
13925 idx = cq->queue_id - phba->sli4_hba.nvmet_cqset[0]->queue_id;
13926 hrq = phba->sli4_hba.nvmet_mrq_hdr[idx];
13927 drq = phba->sli4_hba.nvmet_mrq_data[idx];
13929 /* sanity check on queue memory */
13930 if (unlikely(!hrq) || unlikely(!drq))
13933 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
13934 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
13936 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
13938 if ((phba->nvmet_support == 0) ||
13939 (rq_id != hrq->queue_id))
13942 status = bf_get(lpfc_rcqe_status, rcqe);
13944 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
13945 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13946 "6126 Receive Frame Truncated!!\n");
13948 case FC_STATUS_RQ_SUCCESS:
13949 spin_lock_irqsave(&phba->hbalock, iflags);
13950 lpfc_sli4_rq_release(hrq, drq);
13951 dma_buf = lpfc_sli_rqbuf_get(phba, hrq);
13953 hrq->RQ_no_buf_found++;
13954 spin_unlock_irqrestore(&phba->hbalock, iflags);
13957 spin_unlock_irqrestore(&phba->hbalock, iflags);
13959 hrq->RQ_buf_posted--;
13960 fc_hdr = (struct fc_frame_header *)dma_buf->hbuf.virt;
13962 /* Just some basic sanity checks on FCP Command frame */
13963 fctl = (fc_hdr->fh_f_ctl[0] << 16 |
13964 fc_hdr->fh_f_ctl[1] << 8 |
13965 fc_hdr->fh_f_ctl[2]);
13967 (FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT)) !=
13968 (FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT)) ||
13969 (fc_hdr->fh_seq_cnt != 0)) /* 0 byte swapped is still 0 */
13972 if (fc_hdr->fh_type == FC_TYPE_FCP) {
13973 dma_buf->bytes_recv = bf_get(lpfc_rcqe_length, rcqe);
13974 lpfc_nvmet_unsol_fcp_event(
13975 phba, idx, dma_buf, cq->isr_timestamp,
13976 cq->q_flag & HBA_NVMET_CQ_NOTIFY);
13980 lpfc_rq_buf_free(phba, &dma_buf->hbuf);
13982 case FC_STATUS_INSUFF_BUF_FRM_DISC:
13983 if (phba->nvmet_support) {
13984 tgtp = phba->targetport->private;
13985 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_NVME,
13986 "6401 RQE Error x%x, posted %d err_cnt "
13988 status, hrq->RQ_buf_posted,
13989 hrq->RQ_no_posted_buf,
13990 atomic_read(&tgtp->rcv_fcp_cmd_in),
13991 atomic_read(&tgtp->rcv_fcp_cmd_out),
13992 atomic_read(&tgtp->xmt_fcp_release));
13996 case FC_STATUS_INSUFF_BUF_NEED_BUF:
13997 hrq->RQ_no_posted_buf++;
13998 /* Post more buffers if possible */
14006 * lpfc_sli4_fp_handle_cqe - Process fast-path work queue completion entry
14007 * @phba: adapter with cq
14008 * @cq: Pointer to the completion queue.
14009 * @eqe: Pointer to fast-path completion queue entry.
14011 * This routine process a fast-path work queue completion entry from fast-path
14012 * event queue for FCP command response completion.
14014 * Return: true if work posted to worker thread, otherwise false.
14017 lpfc_sli4_fp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
14018 struct lpfc_cqe *cqe)
14020 struct lpfc_wcqe_release wcqe;
14021 bool workposted = false;
14023 /* Copy the work queue CQE and convert endian order if needed */
14024 lpfc_sli4_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
14026 /* Check and process for different type of WCQE and dispatch */
14027 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
14028 case CQE_CODE_COMPL_WQE:
14029 case CQE_CODE_NVME_ERSP:
14031 /* Process the WQ complete event */
14032 phba->last_completion_time = jiffies;
14033 if ((cq->subtype == LPFC_FCP) || (cq->subtype == LPFC_NVME))
14034 lpfc_sli4_fp_handle_fcp_wcqe(phba, cq,
14035 (struct lpfc_wcqe_complete *)&wcqe);
14036 if (cq->subtype == LPFC_NVME_LS)
14037 lpfc_sli4_fp_handle_fcp_wcqe(phba, cq,
14038 (struct lpfc_wcqe_complete *)&wcqe);
14040 case CQE_CODE_RELEASE_WQE:
14041 cq->CQ_release_wqe++;
14042 /* Process the WQ release event */
14043 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
14044 (struct lpfc_wcqe_release *)&wcqe);
14046 case CQE_CODE_XRI_ABORTED:
14047 cq->CQ_xri_aborted++;
14048 /* Process the WQ XRI abort event */
14049 phba->last_completion_time = jiffies;
14050 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
14051 (struct sli4_wcqe_xri_aborted *)&wcqe);
14053 case CQE_CODE_RECEIVE_V1:
14054 case CQE_CODE_RECEIVE:
14055 phba->last_completion_time = jiffies;
14056 if (cq->subtype == LPFC_NVMET) {
14057 workposted = lpfc_sli4_nvmet_handle_rcqe(
14058 phba, cq, (struct lpfc_rcqe *)&wcqe);
14062 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14063 "0144 Not a valid CQE code: x%x\n",
14064 bf_get(lpfc_wcqe_c_code, &wcqe));
14071 * lpfc_sli4_hba_handle_eqe - Process a fast-path event queue entry
14072 * @phba: Pointer to HBA context object.
14073 * @eqe: Pointer to fast-path event queue entry.
14075 * This routine process a event queue entry from the fast-path event queue.
14076 * It will check the MajorCode and MinorCode to determine this is for a
14077 * completion event on a completion queue, if not, an error shall be logged
14078 * and just return. Otherwise, it will get to the corresponding completion
14079 * queue and process all the entries on the completion queue, rearm the
14080 * completion queue, and then return.
14083 lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba, struct lpfc_queue *eq,
14084 struct lpfc_eqe *eqe)
14086 struct lpfc_queue *cq = NULL;
14087 uint32_t qidx = eq->hdwq;
14090 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
14091 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14092 "0366 Not a valid completion "
14093 "event: majorcode=x%x, minorcode=x%x\n",
14094 bf_get_le32(lpfc_eqe_major_code, eqe),
14095 bf_get_le32(lpfc_eqe_minor_code, eqe));
14099 /* Get the reference to the corresponding CQ */
14100 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
14102 /* Use the fast lookup method first */
14103 if (cqid <= phba->sli4_hba.cq_max) {
14104 cq = phba->sli4_hba.cq_lookup[cqid];
14109 /* Next check for NVMET completion */
14110 if (phba->cfg_nvmet_mrq && phba->sli4_hba.nvmet_cqset) {
14111 id = phba->sli4_hba.nvmet_cqset[0]->queue_id;
14112 if ((cqid >= id) && (cqid < (id + phba->cfg_nvmet_mrq))) {
14113 /* Process NVMET unsol rcv */
14114 cq = phba->sli4_hba.nvmet_cqset[cqid - id];
14119 if (phba->sli4_hba.nvmels_cq &&
14120 (cqid == phba->sli4_hba.nvmels_cq->queue_id)) {
14121 /* Process NVME unsol rcv */
14122 cq = phba->sli4_hba.nvmels_cq;
14125 /* Otherwise this is a Slow path event */
14127 lpfc_sli4_sp_handle_eqe(phba, eqe,
14128 phba->sli4_hba.hdwq[qidx].hba_eq);
14133 if (unlikely(cqid != cq->queue_id)) {
14134 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14135 "0368 Miss-matched fast-path completion "
14136 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
14137 cqid, cq->queue_id);
14142 #if defined(CONFIG_SCSI_LPFC_DEBUG_FS)
14143 if (phba->ktime_on)
14144 cq->isr_timestamp = ktime_get_ns();
14146 cq->isr_timestamp = 0;
14148 if (!queue_work_on(cq->chann, phba->wq, &cq->irqwork))
14149 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14150 "0363 Cannot schedule soft IRQ "
14151 "for CQ eqcqid=%d, cqid=%d on CPU %d\n",
14152 cqid, cq->queue_id, raw_smp_processor_id());
14156 * __lpfc_sli4_hba_process_cq - Process a fast-path event queue entry
14157 * @cq: Pointer to CQ to be processed
14159 * This routine calls the cq processing routine with the handler for
14162 * The CQ routine returns two values: the first is the calling status,
14163 * which indicates whether work was queued to the background discovery
14164 * thread. If true, the routine should wakeup the discovery thread;
14165 * the second is the delay parameter. If non-zero, rather than rearming
14166 * the CQ and yet another interrupt, the CQ handler should be queued so
14167 * that it is processed in a subsequent polling action. The value of
14168 * the delay indicates when to reschedule it.
14171 __lpfc_sli4_hba_process_cq(struct lpfc_queue *cq)
14173 struct lpfc_hba *phba = cq->phba;
14174 unsigned long delay;
14175 bool workposted = false;
14177 /* process and rearm the CQ */
14178 workposted |= __lpfc_sli4_process_cq(phba, cq, lpfc_sli4_fp_handle_cqe,
14182 if (!queue_delayed_work_on(cq->chann, phba->wq,
14183 &cq->sched_irqwork, delay))
14184 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14185 "0367 Cannot schedule soft IRQ "
14186 "for cqid=%d on CPU %d\n",
14187 cq->queue_id, cq->chann);
14190 /* wake up worker thread if there are works to be done */
14192 lpfc_worker_wake_up(phba);
14196 * lpfc_sli4_hba_process_cq - fast-path work handler when started by
14198 * @work: pointer to work element
14200 * translates from the work handler and calls the fast-path handler.
14203 lpfc_sli4_hba_process_cq(struct work_struct *work)
14205 struct lpfc_queue *cq = container_of(work, struct lpfc_queue, irqwork);
14207 __lpfc_sli4_hba_process_cq(cq);
14211 * lpfc_sli4_hba_process_cq - fast-path work handler when started by timer
14212 * @work: pointer to work element
14214 * translates from the work handler and calls the fast-path handler.
14217 lpfc_sli4_dly_hba_process_cq(struct work_struct *work)
14219 struct lpfc_queue *cq = container_of(to_delayed_work(work),
14220 struct lpfc_queue, sched_irqwork);
14222 __lpfc_sli4_hba_process_cq(cq);
14226 * lpfc_sli4_hba_intr_handler - HBA interrupt handler to SLI-4 device
14227 * @irq: Interrupt number.
14228 * @dev_id: The device context pointer.
14230 * This function is directly called from the PCI layer as an interrupt
14231 * service routine when device with SLI-4 interface spec is enabled with
14232 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
14233 * ring event in the HBA. However, when the device is enabled with either
14234 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
14235 * device-level interrupt handler. When the PCI slot is in error recovery
14236 * or the HBA is undergoing initialization, the interrupt handler will not
14237 * process the interrupt. The SCSI FCP fast-path ring event are handled in
14238 * the intrrupt context. This function is called without any lock held.
14239 * It gets the hbalock to access and update SLI data structures. Note that,
14240 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
14241 * equal to that of FCP CQ index.
14243 * The link attention and ELS ring attention events are handled
14244 * by the worker thread. The interrupt handler signals the worker thread
14245 * and returns for these events. This function is called without any lock
14246 * held. It gets the hbalock to access and update SLI data structures.
14248 * This function returns IRQ_HANDLED when interrupt is handled else it
14249 * returns IRQ_NONE.
14252 lpfc_sli4_hba_intr_handler(int irq, void *dev_id)
14254 struct lpfc_hba *phba;
14255 struct lpfc_hba_eq_hdl *hba_eq_hdl;
14256 struct lpfc_queue *fpeq;
14257 unsigned long iflag;
14260 struct lpfc_eq_intr_info *eqi;
14263 /* Get the driver's phba structure from the dev_id */
14264 hba_eq_hdl = (struct lpfc_hba_eq_hdl *)dev_id;
14265 phba = hba_eq_hdl->phba;
14266 hba_eqidx = hba_eq_hdl->idx;
14268 if (unlikely(!phba))
14270 if (unlikely(!phba->sli4_hba.hdwq))
14273 /* Get to the EQ struct associated with this vector */
14274 fpeq = phba->sli4_hba.hba_eq_hdl[hba_eqidx].eq;
14275 if (unlikely(!fpeq))
14278 /* Check device state for handling interrupt */
14279 if (unlikely(lpfc_intr_state_check(phba))) {
14280 /* Check again for link_state with lock held */
14281 spin_lock_irqsave(&phba->hbalock, iflag);
14282 if (phba->link_state < LPFC_LINK_DOWN)
14283 /* Flush, clear interrupt, and rearm the EQ */
14284 lpfc_sli4_eq_flush(phba, fpeq);
14285 spin_unlock_irqrestore(&phba->hbalock, iflag);
14289 eqi = phba->sli4_hba.eq_info;
14290 icnt = this_cpu_inc_return(eqi->icnt);
14291 fpeq->last_cpu = raw_smp_processor_id();
14293 if (icnt > LPFC_EQD_ISR_TRIGGER &&
14294 phba->cfg_irq_chann == 1 &&
14295 phba->cfg_auto_imax &&
14296 fpeq->q_mode != LPFC_MAX_AUTO_EQ_DELAY &&
14297 phba->sli.sli_flag & LPFC_SLI_USE_EQDR)
14298 lpfc_sli4_mod_hba_eq_delay(phba, fpeq, LPFC_MAX_AUTO_EQ_DELAY);
14300 /* process and rearm the EQ */
14301 ecount = lpfc_sli4_process_eq(phba, fpeq);
14303 if (unlikely(ecount == 0)) {
14304 fpeq->EQ_no_entry++;
14305 if (phba->intr_type == MSIX)
14306 /* MSI-X treated interrupt served as no EQ share INT */
14307 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
14308 "0358 MSI-X interrupt with no EQE\n");
14310 /* Non MSI-X treated on interrupt as EQ share INT */
14314 return IRQ_HANDLED;
14315 } /* lpfc_sli4_fp_intr_handler */
14318 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
14319 * @irq: Interrupt number.
14320 * @dev_id: The device context pointer.
14322 * This function is the device-level interrupt handler to device with SLI-4
14323 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
14324 * interrupt mode is enabled and there is an event in the HBA which requires
14325 * driver attention. This function invokes the slow-path interrupt attention
14326 * handling function and fast-path interrupt attention handling function in
14327 * turn to process the relevant HBA attention events. This function is called
14328 * without any lock held. It gets the hbalock to access and update SLI data
14331 * This function returns IRQ_HANDLED when interrupt is handled, else it
14332 * returns IRQ_NONE.
14335 lpfc_sli4_intr_handler(int irq, void *dev_id)
14337 struct lpfc_hba *phba;
14338 irqreturn_t hba_irq_rc;
14339 bool hba_handled = false;
14342 /* Get the driver's phba structure from the dev_id */
14343 phba = (struct lpfc_hba *)dev_id;
14345 if (unlikely(!phba))
14349 * Invoke fast-path host attention interrupt handling as appropriate.
14351 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
14352 hba_irq_rc = lpfc_sli4_hba_intr_handler(irq,
14353 &phba->sli4_hba.hba_eq_hdl[qidx]);
14354 if (hba_irq_rc == IRQ_HANDLED)
14355 hba_handled |= true;
14358 return (hba_handled == true) ? IRQ_HANDLED : IRQ_NONE;
14359 } /* lpfc_sli4_intr_handler */
14362 * lpfc_sli4_queue_free - free a queue structure and associated memory
14363 * @queue: The queue structure to free.
14365 * This function frees a queue structure and the DMAable memory used for
14366 * the host resident queue. This function must be called after destroying the
14367 * queue on the HBA.
14370 lpfc_sli4_queue_free(struct lpfc_queue *queue)
14372 struct lpfc_dmabuf *dmabuf;
14377 if (!list_empty(&queue->wq_list))
14378 list_del(&queue->wq_list);
14380 while (!list_empty(&queue->page_list)) {
14381 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
14383 dma_free_coherent(&queue->phba->pcidev->dev, queue->page_size,
14384 dmabuf->virt, dmabuf->phys);
14388 lpfc_free_rq_buffer(queue->phba, queue);
14389 kfree(queue->rqbp);
14392 if (!list_empty(&queue->cpu_list))
14393 list_del(&queue->cpu_list);
14400 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
14401 * @phba: The HBA that this queue is being created on.
14402 * @page_size: The size of a queue page
14403 * @entry_size: The size of each queue entry for this queue.
14404 * @entry count: The number of entries that this queue will handle.
14405 * @cpu: The cpu that will primarily utilize this queue.
14407 * This function allocates a queue structure and the DMAable memory used for
14408 * the host resident queue. This function must be called before creating the
14409 * queue on the HBA.
14411 struct lpfc_queue *
14412 lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t page_size,
14413 uint32_t entry_size, uint32_t entry_count, int cpu)
14415 struct lpfc_queue *queue;
14416 struct lpfc_dmabuf *dmabuf;
14417 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
14420 if (!phba->sli4_hba.pc_sli4_params.supported)
14421 hw_page_size = page_size;
14423 pgcnt = ALIGN(entry_size * entry_count, hw_page_size) / hw_page_size;
14425 /* If needed, Adjust page count to match the max the adapter supports */
14426 if (pgcnt > phba->sli4_hba.pc_sli4_params.wqpcnt)
14427 pgcnt = phba->sli4_hba.pc_sli4_params.wqpcnt;
14429 queue = kzalloc_node(sizeof(*queue) + (sizeof(void *) * pgcnt),
14430 GFP_KERNEL, cpu_to_node(cpu));
14434 INIT_LIST_HEAD(&queue->list);
14435 INIT_LIST_HEAD(&queue->wq_list);
14436 INIT_LIST_HEAD(&queue->wqfull_list);
14437 INIT_LIST_HEAD(&queue->page_list);
14438 INIT_LIST_HEAD(&queue->child_list);
14439 INIT_LIST_HEAD(&queue->cpu_list);
14441 /* Set queue parameters now. If the system cannot provide memory
14442 * resources, the free routine needs to know what was allocated.
14444 queue->page_count = pgcnt;
14445 queue->q_pgs = (void **)&queue[1];
14446 queue->entry_cnt_per_pg = hw_page_size / entry_size;
14447 queue->entry_size = entry_size;
14448 queue->entry_count = entry_count;
14449 queue->page_size = hw_page_size;
14450 queue->phba = phba;
14452 for (x = 0; x < queue->page_count; x++) {
14453 dmabuf = kzalloc_node(sizeof(*dmabuf), GFP_KERNEL,
14454 dev_to_node(&phba->pcidev->dev));
14457 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
14458 hw_page_size, &dmabuf->phys,
14460 if (!dmabuf->virt) {
14464 dmabuf->buffer_tag = x;
14465 list_add_tail(&dmabuf->list, &queue->page_list);
14466 /* use lpfc_sli4_qe to index a paritcular entry in this page */
14467 queue->q_pgs[x] = dmabuf->virt;
14469 INIT_WORK(&queue->irqwork, lpfc_sli4_hba_process_cq);
14470 INIT_WORK(&queue->spwork, lpfc_sli4_sp_process_cq);
14471 INIT_DELAYED_WORK(&queue->sched_irqwork, lpfc_sli4_dly_hba_process_cq);
14472 INIT_DELAYED_WORK(&queue->sched_spwork, lpfc_sli4_dly_sp_process_cq);
14474 /* notify_interval will be set during q creation */
14478 lpfc_sli4_queue_free(queue);
14483 * lpfc_dual_chute_pci_bar_map - Map pci base address register to host memory
14484 * @phba: HBA structure that indicates port to create a queue on.
14485 * @pci_barset: PCI BAR set flag.
14487 * This function shall perform iomap of the specified PCI BAR address to host
14488 * memory address if not already done so and return it. The returned host
14489 * memory address can be NULL.
14491 static void __iomem *
14492 lpfc_dual_chute_pci_bar_map(struct lpfc_hba *phba, uint16_t pci_barset)
14497 switch (pci_barset) {
14498 case WQ_PCI_BAR_0_AND_1:
14499 return phba->pci_bar0_memmap_p;
14500 case WQ_PCI_BAR_2_AND_3:
14501 return phba->pci_bar2_memmap_p;
14502 case WQ_PCI_BAR_4_AND_5:
14503 return phba->pci_bar4_memmap_p;
14511 * lpfc_modify_hba_eq_delay - Modify Delay Multiplier on EQs
14512 * @phba: HBA structure that EQs are on.
14513 * @startq: The starting EQ index to modify
14514 * @numq: The number of EQs (consecutive indexes) to modify
14515 * @usdelay: amount of delay
14517 * This function revises the EQ delay on 1 or more EQs. The EQ delay
14518 * is set either by writing to a register (if supported by the SLI Port)
14519 * or by mailbox command. The mailbox command allows several EQs to be
14522 * The @phba struct is used to send a mailbox command to HBA. The @startq
14523 * is used to get the starting EQ index to change. The @numq value is
14524 * used to specify how many consecutive EQ indexes, starting at EQ index,
14525 * are to be changed. This function is asynchronous and will wait for any
14526 * mailbox commands to finish before returning.
14528 * On success this function will return a zero. If unable to allocate
14529 * enough memory this function will return -ENOMEM. If a mailbox command
14530 * fails this function will return -ENXIO. Note: on ENXIO, some EQs may
14531 * have had their delay multipler changed.
14534 lpfc_modify_hba_eq_delay(struct lpfc_hba *phba, uint32_t startq,
14535 uint32_t numq, uint32_t usdelay)
14537 struct lpfc_mbx_modify_eq_delay *eq_delay;
14538 LPFC_MBOXQ_t *mbox;
14539 struct lpfc_queue *eq;
14540 int cnt = 0, rc, length;
14541 uint32_t shdr_status, shdr_add_status;
14544 union lpfc_sli4_cfg_shdr *shdr;
14546 if (startq >= phba->cfg_irq_chann)
14549 if (usdelay > 0xFFFF) {
14550 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP | LOG_NVME,
14551 "6429 usdelay %d too large. Scaled down to "
14552 "0xFFFF.\n", usdelay);
14556 /* set values by EQ_DELAY register if supported */
14557 if (phba->sli.sli_flag & LPFC_SLI_USE_EQDR) {
14558 for (qidx = startq; qidx < phba->cfg_irq_chann; qidx++) {
14559 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
14563 lpfc_sli4_mod_hba_eq_delay(phba, eq, usdelay);
14571 /* Otherwise, set values by mailbox cmd */
14573 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14575 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_FCP | LOG_NVME,
14576 "6428 Failed allocating mailbox cmd buffer."
14577 " EQ delay was not set.\n");
14580 length = (sizeof(struct lpfc_mbx_modify_eq_delay) -
14581 sizeof(struct lpfc_sli4_cfg_mhdr));
14582 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14583 LPFC_MBOX_OPCODE_MODIFY_EQ_DELAY,
14584 length, LPFC_SLI4_MBX_EMBED);
14585 eq_delay = &mbox->u.mqe.un.eq_delay;
14587 /* Calculate delay multiper from maximum interrupt per second */
14588 dmult = (usdelay * LPFC_DMULT_CONST) / LPFC_SEC_TO_USEC;
14591 if (dmult > LPFC_DMULT_MAX)
14592 dmult = LPFC_DMULT_MAX;
14594 for (qidx = startq; qidx < phba->cfg_irq_chann; qidx++) {
14595 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
14598 eq->q_mode = usdelay;
14599 eq_delay->u.request.eq[cnt].eq_id = eq->queue_id;
14600 eq_delay->u.request.eq[cnt].phase = 0;
14601 eq_delay->u.request.eq[cnt].delay_multi = dmult;
14606 eq_delay->u.request.num_eq = cnt;
14608 mbox->vport = phba->pport;
14609 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14610 mbox->ctx_buf = NULL;
14611 mbox->ctx_ndlp = NULL;
14612 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14613 shdr = (union lpfc_sli4_cfg_shdr *) &eq_delay->header.cfg_shdr;
14614 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14615 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14616 if (shdr_status || shdr_add_status || rc) {
14617 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14618 "2512 MODIFY_EQ_DELAY mailbox failed with "
14619 "status x%x add_status x%x, mbx status x%x\n",
14620 shdr_status, shdr_add_status, rc);
14622 mempool_free(mbox, phba->mbox_mem_pool);
14627 * lpfc_eq_create - Create an Event Queue on the HBA
14628 * @phba: HBA structure that indicates port to create a queue on.
14629 * @eq: The queue structure to use to create the event queue.
14630 * @imax: The maximum interrupt per second limit.
14632 * This function creates an event queue, as detailed in @eq, on a port,
14633 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
14635 * The @phba struct is used to send mailbox command to HBA. The @eq struct
14636 * is used to get the entry count and entry size that are necessary to
14637 * determine the number of pages to allocate and use for this queue. This
14638 * function will send the EQ_CREATE mailbox command to the HBA to setup the
14639 * event queue. This function is asynchronous and will wait for the mailbox
14640 * command to finish before continuing.
14642 * On success this function will return a zero. If unable to allocate enough
14643 * memory this function will return -ENOMEM. If the queue create mailbox command
14644 * fails this function will return -ENXIO.
14647 lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint32_t imax)
14649 struct lpfc_mbx_eq_create *eq_create;
14650 LPFC_MBOXQ_t *mbox;
14651 int rc, length, status = 0;
14652 struct lpfc_dmabuf *dmabuf;
14653 uint32_t shdr_status, shdr_add_status;
14654 union lpfc_sli4_cfg_shdr *shdr;
14656 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
14658 /* sanity check on queue memory */
14661 if (!phba->sli4_hba.pc_sli4_params.supported)
14662 hw_page_size = SLI4_PAGE_SIZE;
14664 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14667 length = (sizeof(struct lpfc_mbx_eq_create) -
14668 sizeof(struct lpfc_sli4_cfg_mhdr));
14669 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14670 LPFC_MBOX_OPCODE_EQ_CREATE,
14671 length, LPFC_SLI4_MBX_EMBED);
14672 eq_create = &mbox->u.mqe.un.eq_create;
14673 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
14674 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
14676 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
14678 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
14680 /* Use version 2 of CREATE_EQ if eqav is set */
14681 if (phba->sli4_hba.pc_sli4_params.eqav) {
14682 bf_set(lpfc_mbox_hdr_version, &shdr->request,
14683 LPFC_Q_CREATE_VERSION_2);
14684 bf_set(lpfc_eq_context_autovalid, &eq_create->u.request.context,
14685 phba->sli4_hba.pc_sli4_params.eqav);
14688 /* don't setup delay multiplier using EQ_CREATE */
14690 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
14692 switch (eq->entry_count) {
14694 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14695 "0360 Unsupported EQ count. (%d)\n",
14697 if (eq->entry_count < 256) {
14701 /* fall through - otherwise default to smallest count */
14703 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14707 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14711 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14715 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14719 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14723 list_for_each_entry(dmabuf, &eq->page_list, list) {
14724 memset(dmabuf->virt, 0, hw_page_size);
14725 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
14726 putPaddrLow(dmabuf->phys);
14727 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
14728 putPaddrHigh(dmabuf->phys);
14730 mbox->vport = phba->pport;
14731 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14732 mbox->ctx_buf = NULL;
14733 mbox->ctx_ndlp = NULL;
14734 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14735 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14736 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14737 if (shdr_status || shdr_add_status || rc) {
14738 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14739 "2500 EQ_CREATE mailbox failed with "
14740 "status x%x add_status x%x, mbx status x%x\n",
14741 shdr_status, shdr_add_status, rc);
14744 eq->type = LPFC_EQ;
14745 eq->subtype = LPFC_NONE;
14746 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
14747 if (eq->queue_id == 0xFFFF)
14749 eq->host_index = 0;
14750 eq->notify_interval = LPFC_EQ_NOTIFY_INTRVL;
14751 eq->max_proc_limit = LPFC_EQ_MAX_PROC_LIMIT;
14753 mempool_free(mbox, phba->mbox_mem_pool);
14758 * lpfc_cq_create - Create a Completion Queue on the HBA
14759 * @phba: HBA structure that indicates port to create a queue on.
14760 * @cq: The queue structure to use to create the completion queue.
14761 * @eq: The event queue to bind this completion queue to.
14763 * This function creates a completion queue, as detailed in @wq, on a port,
14764 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
14766 * The @phba struct is used to send mailbox command to HBA. The @cq struct
14767 * is used to get the entry count and entry size that are necessary to
14768 * determine the number of pages to allocate and use for this queue. The @eq
14769 * is used to indicate which event queue to bind this completion queue to. This
14770 * function will send the CQ_CREATE mailbox command to the HBA to setup the
14771 * completion queue. This function is asynchronous and will wait for the mailbox
14772 * command to finish before continuing.
14774 * On success this function will return a zero. If unable to allocate enough
14775 * memory this function will return -ENOMEM. If the queue create mailbox command
14776 * fails this function will return -ENXIO.
14779 lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
14780 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
14782 struct lpfc_mbx_cq_create *cq_create;
14783 struct lpfc_dmabuf *dmabuf;
14784 LPFC_MBOXQ_t *mbox;
14785 int rc, length, status = 0;
14786 uint32_t shdr_status, shdr_add_status;
14787 union lpfc_sli4_cfg_shdr *shdr;
14789 /* sanity check on queue memory */
14793 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14796 length = (sizeof(struct lpfc_mbx_cq_create) -
14797 sizeof(struct lpfc_sli4_cfg_mhdr));
14798 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14799 LPFC_MBOX_OPCODE_CQ_CREATE,
14800 length, LPFC_SLI4_MBX_EMBED);
14801 cq_create = &mbox->u.mqe.un.cq_create;
14802 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
14803 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
14805 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
14806 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
14807 bf_set(lpfc_mbox_hdr_version, &shdr->request,
14808 phba->sli4_hba.pc_sli4_params.cqv);
14809 if (phba->sli4_hba.pc_sli4_params.cqv == LPFC_Q_CREATE_VERSION_2) {
14810 bf_set(lpfc_mbx_cq_create_page_size, &cq_create->u.request,
14811 (cq->page_size / SLI4_PAGE_SIZE));
14812 bf_set(lpfc_cq_eq_id_2, &cq_create->u.request.context,
14814 bf_set(lpfc_cq_context_autovalid, &cq_create->u.request.context,
14815 phba->sli4_hba.pc_sli4_params.cqav);
14817 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context,
14820 switch (cq->entry_count) {
14823 if (phba->sli4_hba.pc_sli4_params.cqv ==
14824 LPFC_Q_CREATE_VERSION_2) {
14825 cq_create->u.request.context.lpfc_cq_context_count =
14827 bf_set(lpfc_cq_context_count,
14828 &cq_create->u.request.context,
14829 LPFC_CQ_CNT_WORD7);
14834 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14835 "0361 Unsupported CQ count: "
14836 "entry cnt %d sz %d pg cnt %d\n",
14837 cq->entry_count, cq->entry_size,
14839 if (cq->entry_count < 256) {
14843 /* fall through - otherwise default to smallest count */
14845 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
14849 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
14853 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
14857 list_for_each_entry(dmabuf, &cq->page_list, list) {
14858 memset(dmabuf->virt, 0, cq->page_size);
14859 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
14860 putPaddrLow(dmabuf->phys);
14861 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
14862 putPaddrHigh(dmabuf->phys);
14864 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14866 /* The IOCTL status is embedded in the mailbox subheader. */
14867 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14868 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14869 if (shdr_status || shdr_add_status || rc) {
14870 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14871 "2501 CQ_CREATE mailbox failed with "
14872 "status x%x add_status x%x, mbx status x%x\n",
14873 shdr_status, shdr_add_status, rc);
14877 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
14878 if (cq->queue_id == 0xFFFF) {
14882 /* link the cq onto the parent eq child list */
14883 list_add_tail(&cq->list, &eq->child_list);
14884 /* Set up completion queue's type and subtype */
14886 cq->subtype = subtype;
14887 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
14888 cq->assoc_qid = eq->queue_id;
14890 cq->host_index = 0;
14891 cq->notify_interval = LPFC_CQ_NOTIFY_INTRVL;
14892 cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit, cq->entry_count);
14894 if (cq->queue_id > phba->sli4_hba.cq_max)
14895 phba->sli4_hba.cq_max = cq->queue_id;
14897 mempool_free(mbox, phba->mbox_mem_pool);
14902 * lpfc_cq_create_set - Create a set of Completion Queues on the HBA for MRQ
14903 * @phba: HBA structure that indicates port to create a queue on.
14904 * @cqp: The queue structure array to use to create the completion queues.
14905 * @hdwq: The hardware queue array with the EQ to bind completion queues to.
14907 * This function creates a set of completion queue, s to support MRQ
14908 * as detailed in @cqp, on a port,
14909 * described by @phba by sending a CREATE_CQ_SET mailbox command to the HBA.
14911 * The @phba struct is used to send mailbox command to HBA. The @cq struct
14912 * is used to get the entry count and entry size that are necessary to
14913 * determine the number of pages to allocate and use for this queue. The @eq
14914 * is used to indicate which event queue to bind this completion queue to. This
14915 * function will send the CREATE_CQ_SET mailbox command to the HBA to setup the
14916 * completion queue. This function is asynchronous and will wait for the mailbox
14917 * command to finish before continuing.
14919 * On success this function will return a zero. If unable to allocate enough
14920 * memory this function will return -ENOMEM. If the queue create mailbox command
14921 * fails this function will return -ENXIO.
14924 lpfc_cq_create_set(struct lpfc_hba *phba, struct lpfc_queue **cqp,
14925 struct lpfc_sli4_hdw_queue *hdwq, uint32_t type,
14928 struct lpfc_queue *cq;
14929 struct lpfc_queue *eq;
14930 struct lpfc_mbx_cq_create_set *cq_set;
14931 struct lpfc_dmabuf *dmabuf;
14932 LPFC_MBOXQ_t *mbox;
14933 int rc, length, alloclen, status = 0;
14934 int cnt, idx, numcq, page_idx = 0;
14935 uint32_t shdr_status, shdr_add_status;
14936 union lpfc_sli4_cfg_shdr *shdr;
14937 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
14939 /* sanity check on queue memory */
14940 numcq = phba->cfg_nvmet_mrq;
14941 if (!cqp || !hdwq || !numcq)
14944 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14948 length = sizeof(struct lpfc_mbx_cq_create_set);
14949 length += ((numcq * cqp[0]->page_count) *
14950 sizeof(struct dma_address));
14951 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14952 LPFC_MBOX_OPCODE_FCOE_CQ_CREATE_SET, length,
14953 LPFC_SLI4_MBX_NEMBED);
14954 if (alloclen < length) {
14955 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14956 "3098 Allocated DMA memory size (%d) is "
14957 "less than the requested DMA memory size "
14958 "(%d)\n", alloclen, length);
14962 cq_set = mbox->sge_array->addr[0];
14963 shdr = (union lpfc_sli4_cfg_shdr *)&cq_set->cfg_shdr;
14964 bf_set(lpfc_mbox_hdr_version, &shdr->request, 0);
14966 for (idx = 0; idx < numcq; idx++) {
14968 eq = hdwq[idx].hba_eq;
14973 if (!phba->sli4_hba.pc_sli4_params.supported)
14974 hw_page_size = cq->page_size;
14978 bf_set(lpfc_mbx_cq_create_set_page_size,
14979 &cq_set->u.request,
14980 (hw_page_size / SLI4_PAGE_SIZE));
14981 bf_set(lpfc_mbx_cq_create_set_num_pages,
14982 &cq_set->u.request, cq->page_count);
14983 bf_set(lpfc_mbx_cq_create_set_evt,
14984 &cq_set->u.request, 1);
14985 bf_set(lpfc_mbx_cq_create_set_valid,
14986 &cq_set->u.request, 1);
14987 bf_set(lpfc_mbx_cq_create_set_cqe_size,
14988 &cq_set->u.request, 0);
14989 bf_set(lpfc_mbx_cq_create_set_num_cq,
14990 &cq_set->u.request, numcq);
14991 bf_set(lpfc_mbx_cq_create_set_autovalid,
14992 &cq_set->u.request,
14993 phba->sli4_hba.pc_sli4_params.cqav);
14994 switch (cq->entry_count) {
14997 if (phba->sli4_hba.pc_sli4_params.cqv ==
14998 LPFC_Q_CREATE_VERSION_2) {
14999 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
15000 &cq_set->u.request,
15002 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
15003 &cq_set->u.request,
15004 LPFC_CQ_CNT_WORD7);
15009 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15010 "3118 Bad CQ count. (%d)\n",
15012 if (cq->entry_count < 256) {
15016 /* fall through - otherwise default to smallest */
15018 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
15019 &cq_set->u.request, LPFC_CQ_CNT_256);
15022 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
15023 &cq_set->u.request, LPFC_CQ_CNT_512);
15026 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
15027 &cq_set->u.request, LPFC_CQ_CNT_1024);
15030 bf_set(lpfc_mbx_cq_create_set_eq_id0,
15031 &cq_set->u.request, eq->queue_id);
15034 bf_set(lpfc_mbx_cq_create_set_eq_id1,
15035 &cq_set->u.request, eq->queue_id);
15038 bf_set(lpfc_mbx_cq_create_set_eq_id2,
15039 &cq_set->u.request, eq->queue_id);
15042 bf_set(lpfc_mbx_cq_create_set_eq_id3,
15043 &cq_set->u.request, eq->queue_id);
15046 bf_set(lpfc_mbx_cq_create_set_eq_id4,
15047 &cq_set->u.request, eq->queue_id);
15050 bf_set(lpfc_mbx_cq_create_set_eq_id5,
15051 &cq_set->u.request, eq->queue_id);
15054 bf_set(lpfc_mbx_cq_create_set_eq_id6,
15055 &cq_set->u.request, eq->queue_id);
15058 bf_set(lpfc_mbx_cq_create_set_eq_id7,
15059 &cq_set->u.request, eq->queue_id);
15062 bf_set(lpfc_mbx_cq_create_set_eq_id8,
15063 &cq_set->u.request, eq->queue_id);
15066 bf_set(lpfc_mbx_cq_create_set_eq_id9,
15067 &cq_set->u.request, eq->queue_id);
15070 bf_set(lpfc_mbx_cq_create_set_eq_id10,
15071 &cq_set->u.request, eq->queue_id);
15074 bf_set(lpfc_mbx_cq_create_set_eq_id11,
15075 &cq_set->u.request, eq->queue_id);
15078 bf_set(lpfc_mbx_cq_create_set_eq_id12,
15079 &cq_set->u.request, eq->queue_id);
15082 bf_set(lpfc_mbx_cq_create_set_eq_id13,
15083 &cq_set->u.request, eq->queue_id);
15086 bf_set(lpfc_mbx_cq_create_set_eq_id14,
15087 &cq_set->u.request, eq->queue_id);
15090 bf_set(lpfc_mbx_cq_create_set_eq_id15,
15091 &cq_set->u.request, eq->queue_id);
15095 /* link the cq onto the parent eq child list */
15096 list_add_tail(&cq->list, &eq->child_list);
15097 /* Set up completion queue's type and subtype */
15099 cq->subtype = subtype;
15100 cq->assoc_qid = eq->queue_id;
15102 cq->host_index = 0;
15103 cq->notify_interval = LPFC_CQ_NOTIFY_INTRVL;
15104 cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit,
15109 list_for_each_entry(dmabuf, &cq->page_list, list) {
15110 memset(dmabuf->virt, 0, hw_page_size);
15111 cnt = page_idx + dmabuf->buffer_tag;
15112 cq_set->u.request.page[cnt].addr_lo =
15113 putPaddrLow(dmabuf->phys);
15114 cq_set->u.request.page[cnt].addr_hi =
15115 putPaddrHigh(dmabuf->phys);
15121 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15123 /* The IOCTL status is embedded in the mailbox subheader. */
15124 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15125 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15126 if (shdr_status || shdr_add_status || rc) {
15127 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15128 "3119 CQ_CREATE_SET mailbox failed with "
15129 "status x%x add_status x%x, mbx status x%x\n",
15130 shdr_status, shdr_add_status, rc);
15134 rc = bf_get(lpfc_mbx_cq_create_set_base_id, &cq_set->u.response);
15135 if (rc == 0xFFFF) {
15140 for (idx = 0; idx < numcq; idx++) {
15142 cq->queue_id = rc + idx;
15143 if (cq->queue_id > phba->sli4_hba.cq_max)
15144 phba->sli4_hba.cq_max = cq->queue_id;
15148 lpfc_sli4_mbox_cmd_free(phba, mbox);
15153 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
15154 * @phba: HBA structure that indicates port to create a queue on.
15155 * @mq: The queue structure to use to create the mailbox queue.
15156 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
15157 * @cq: The completion queue to associate with this cq.
15159 * This function provides failback (fb) functionality when the
15160 * mq_create_ext fails on older FW generations. It's purpose is identical
15161 * to mq_create_ext otherwise.
15163 * This routine cannot fail as all attributes were previously accessed and
15164 * initialized in mq_create_ext.
15167 lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq,
15168 LPFC_MBOXQ_t *mbox, struct lpfc_queue *cq)
15170 struct lpfc_mbx_mq_create *mq_create;
15171 struct lpfc_dmabuf *dmabuf;
15174 length = (sizeof(struct lpfc_mbx_mq_create) -
15175 sizeof(struct lpfc_sli4_cfg_mhdr));
15176 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
15177 LPFC_MBOX_OPCODE_MQ_CREATE,
15178 length, LPFC_SLI4_MBX_EMBED);
15179 mq_create = &mbox->u.mqe.un.mq_create;
15180 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
15182 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
15184 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
15185 switch (mq->entry_count) {
15187 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
15188 LPFC_MQ_RING_SIZE_16);
15191 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
15192 LPFC_MQ_RING_SIZE_32);
15195 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
15196 LPFC_MQ_RING_SIZE_64);
15199 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
15200 LPFC_MQ_RING_SIZE_128);
15203 list_for_each_entry(dmabuf, &mq->page_list, list) {
15204 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
15205 putPaddrLow(dmabuf->phys);
15206 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
15207 putPaddrHigh(dmabuf->phys);
15212 * lpfc_mq_create - Create a mailbox Queue on the HBA
15213 * @phba: HBA structure that indicates port to create a queue on.
15214 * @mq: The queue structure to use to create the mailbox queue.
15215 * @cq: The completion queue to associate with this cq.
15216 * @subtype: The queue's subtype.
15218 * This function creates a mailbox queue, as detailed in @mq, on a port,
15219 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
15221 * The @phba struct is used to send mailbox command to HBA. The @cq struct
15222 * is used to get the entry count and entry size that are necessary to
15223 * determine the number of pages to allocate and use for this queue. This
15224 * function will send the MQ_CREATE mailbox command to the HBA to setup the
15225 * mailbox queue. This function is asynchronous and will wait for the mailbox
15226 * command to finish before continuing.
15228 * On success this function will return a zero. If unable to allocate enough
15229 * memory this function will return -ENOMEM. If the queue create mailbox command
15230 * fails this function will return -ENXIO.
15233 lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
15234 struct lpfc_queue *cq, uint32_t subtype)
15236 struct lpfc_mbx_mq_create *mq_create;
15237 struct lpfc_mbx_mq_create_ext *mq_create_ext;
15238 struct lpfc_dmabuf *dmabuf;
15239 LPFC_MBOXQ_t *mbox;
15240 int rc, length, status = 0;
15241 uint32_t shdr_status, shdr_add_status;
15242 union lpfc_sli4_cfg_shdr *shdr;
15243 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15245 /* sanity check on queue memory */
15248 if (!phba->sli4_hba.pc_sli4_params.supported)
15249 hw_page_size = SLI4_PAGE_SIZE;
15251 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15254 length = (sizeof(struct lpfc_mbx_mq_create_ext) -
15255 sizeof(struct lpfc_sli4_cfg_mhdr));
15256 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
15257 LPFC_MBOX_OPCODE_MQ_CREATE_EXT,
15258 length, LPFC_SLI4_MBX_EMBED);
15260 mq_create_ext = &mbox->u.mqe.un.mq_create_ext;
15261 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr;
15262 bf_set(lpfc_mbx_mq_create_ext_num_pages,
15263 &mq_create_ext->u.request, mq->page_count);
15264 bf_set(lpfc_mbx_mq_create_ext_async_evt_link,
15265 &mq_create_ext->u.request, 1);
15266 bf_set(lpfc_mbx_mq_create_ext_async_evt_fip,
15267 &mq_create_ext->u.request, 1);
15268 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5,
15269 &mq_create_ext->u.request, 1);
15270 bf_set(lpfc_mbx_mq_create_ext_async_evt_fc,
15271 &mq_create_ext->u.request, 1);
15272 bf_set(lpfc_mbx_mq_create_ext_async_evt_sli,
15273 &mq_create_ext->u.request, 1);
15274 bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1);
15275 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15276 phba->sli4_hba.pc_sli4_params.mqv);
15277 if (phba->sli4_hba.pc_sli4_params.mqv == LPFC_Q_CREATE_VERSION_1)
15278 bf_set(lpfc_mbx_mq_create_ext_cq_id, &mq_create_ext->u.request,
15281 bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context,
15283 switch (mq->entry_count) {
15285 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15286 "0362 Unsupported MQ count. (%d)\n",
15288 if (mq->entry_count < 16) {
15292 /* fall through - otherwise default to smallest count */
15294 bf_set(lpfc_mq_context_ring_size,
15295 &mq_create_ext->u.request.context,
15296 LPFC_MQ_RING_SIZE_16);
15299 bf_set(lpfc_mq_context_ring_size,
15300 &mq_create_ext->u.request.context,
15301 LPFC_MQ_RING_SIZE_32);
15304 bf_set(lpfc_mq_context_ring_size,
15305 &mq_create_ext->u.request.context,
15306 LPFC_MQ_RING_SIZE_64);
15309 bf_set(lpfc_mq_context_ring_size,
15310 &mq_create_ext->u.request.context,
15311 LPFC_MQ_RING_SIZE_128);
15314 list_for_each_entry(dmabuf, &mq->page_list, list) {
15315 memset(dmabuf->virt, 0, hw_page_size);
15316 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_lo =
15317 putPaddrLow(dmabuf->phys);
15318 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_hi =
15319 putPaddrHigh(dmabuf->phys);
15321 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15322 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
15323 &mq_create_ext->u.response);
15324 if (rc != MBX_SUCCESS) {
15325 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15326 "2795 MQ_CREATE_EXT failed with "
15327 "status x%x. Failback to MQ_CREATE.\n",
15329 lpfc_mq_create_fb_init(phba, mq, mbox, cq);
15330 mq_create = &mbox->u.mqe.un.mq_create;
15331 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15332 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
15333 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
15334 &mq_create->u.response);
15337 /* The IOCTL status is embedded in the mailbox subheader. */
15338 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15339 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15340 if (shdr_status || shdr_add_status || rc) {
15341 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15342 "2502 MQ_CREATE mailbox failed with "
15343 "status x%x add_status x%x, mbx status x%x\n",
15344 shdr_status, shdr_add_status, rc);
15348 if (mq->queue_id == 0xFFFF) {
15352 mq->type = LPFC_MQ;
15353 mq->assoc_qid = cq->queue_id;
15354 mq->subtype = subtype;
15355 mq->host_index = 0;
15358 /* link the mq onto the parent cq child list */
15359 list_add_tail(&mq->list, &cq->child_list);
15361 mempool_free(mbox, phba->mbox_mem_pool);
15366 * lpfc_wq_create - Create a Work Queue on the HBA
15367 * @phba: HBA structure that indicates port to create a queue on.
15368 * @wq: The queue structure to use to create the work queue.
15369 * @cq: The completion queue to bind this work queue to.
15370 * @subtype: The subtype of the work queue indicating its functionality.
15372 * This function creates a work queue, as detailed in @wq, on a port, described
15373 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
15375 * The @phba struct is used to send mailbox command to HBA. The @wq struct
15376 * is used to get the entry count and entry size that are necessary to
15377 * determine the number of pages to allocate and use for this queue. The @cq
15378 * is used to indicate which completion queue to bind this work queue to. This
15379 * function will send the WQ_CREATE mailbox command to the HBA to setup the
15380 * work queue. This function is asynchronous and will wait for the mailbox
15381 * command to finish before continuing.
15383 * On success this function will return a zero. If unable to allocate enough
15384 * memory this function will return -ENOMEM. If the queue create mailbox command
15385 * fails this function will return -ENXIO.
15388 lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
15389 struct lpfc_queue *cq, uint32_t subtype)
15391 struct lpfc_mbx_wq_create *wq_create;
15392 struct lpfc_dmabuf *dmabuf;
15393 LPFC_MBOXQ_t *mbox;
15394 int rc, length, status = 0;
15395 uint32_t shdr_status, shdr_add_status;
15396 union lpfc_sli4_cfg_shdr *shdr;
15397 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15398 struct dma_address *page;
15399 void __iomem *bar_memmap_p;
15400 uint32_t db_offset;
15401 uint16_t pci_barset;
15402 uint8_t dpp_barset;
15403 uint32_t dpp_offset;
15404 unsigned long pg_addr;
15405 uint8_t wq_create_version;
15407 /* sanity check on queue memory */
15410 if (!phba->sli4_hba.pc_sli4_params.supported)
15411 hw_page_size = wq->page_size;
15413 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15416 length = (sizeof(struct lpfc_mbx_wq_create) -
15417 sizeof(struct lpfc_sli4_cfg_mhdr));
15418 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15419 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
15420 length, LPFC_SLI4_MBX_EMBED);
15421 wq_create = &mbox->u.mqe.un.wq_create;
15422 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
15423 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
15425 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
15428 /* wqv is the earliest version supported, NOT the latest */
15429 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15430 phba->sli4_hba.pc_sli4_params.wqv);
15432 if ((phba->sli4_hba.pc_sli4_params.wqsize & LPFC_WQ_SZ128_SUPPORT) ||
15433 (wq->page_size > SLI4_PAGE_SIZE))
15434 wq_create_version = LPFC_Q_CREATE_VERSION_1;
15436 wq_create_version = LPFC_Q_CREATE_VERSION_0;
15439 if (phba->sli4_hba.pc_sli4_params.wqsize & LPFC_WQ_SZ128_SUPPORT)
15440 wq_create_version = LPFC_Q_CREATE_VERSION_1;
15442 wq_create_version = LPFC_Q_CREATE_VERSION_0;
15444 switch (wq_create_version) {
15445 case LPFC_Q_CREATE_VERSION_1:
15446 bf_set(lpfc_mbx_wq_create_wqe_count, &wq_create->u.request_1,
15448 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15449 LPFC_Q_CREATE_VERSION_1);
15451 switch (wq->entry_size) {
15454 bf_set(lpfc_mbx_wq_create_wqe_size,
15455 &wq_create->u.request_1,
15456 LPFC_WQ_WQE_SIZE_64);
15459 bf_set(lpfc_mbx_wq_create_wqe_size,
15460 &wq_create->u.request_1,
15461 LPFC_WQ_WQE_SIZE_128);
15464 /* Request DPP by default */
15465 bf_set(lpfc_mbx_wq_create_dpp_req, &wq_create->u.request_1, 1);
15466 bf_set(lpfc_mbx_wq_create_page_size,
15467 &wq_create->u.request_1,
15468 (wq->page_size / SLI4_PAGE_SIZE));
15469 page = wq_create->u.request_1.page;
15472 page = wq_create->u.request.page;
15476 list_for_each_entry(dmabuf, &wq->page_list, list) {
15477 memset(dmabuf->virt, 0, hw_page_size);
15478 page[dmabuf->buffer_tag].addr_lo = putPaddrLow(dmabuf->phys);
15479 page[dmabuf->buffer_tag].addr_hi = putPaddrHigh(dmabuf->phys);
15482 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
15483 bf_set(lpfc_mbx_wq_create_dua, &wq_create->u.request, 1);
15485 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15486 /* The IOCTL status is embedded in the mailbox subheader. */
15487 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15488 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15489 if (shdr_status || shdr_add_status || rc) {
15490 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15491 "2503 WQ_CREATE mailbox failed with "
15492 "status x%x add_status x%x, mbx status x%x\n",
15493 shdr_status, shdr_add_status, rc);
15498 if (wq_create_version == LPFC_Q_CREATE_VERSION_0)
15499 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id,
15500 &wq_create->u.response);
15502 wq->queue_id = bf_get(lpfc_mbx_wq_create_v1_q_id,
15503 &wq_create->u.response_1);
15505 if (wq->queue_id == 0xFFFF) {
15510 wq->db_format = LPFC_DB_LIST_FORMAT;
15511 if (wq_create_version == LPFC_Q_CREATE_VERSION_0) {
15512 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
15513 wq->db_format = bf_get(lpfc_mbx_wq_create_db_format,
15514 &wq_create->u.response);
15515 if ((wq->db_format != LPFC_DB_LIST_FORMAT) &&
15516 (wq->db_format != LPFC_DB_RING_FORMAT)) {
15517 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15518 "3265 WQ[%d] doorbell format "
15519 "not supported: x%x\n",
15520 wq->queue_id, wq->db_format);
15524 pci_barset = bf_get(lpfc_mbx_wq_create_bar_set,
15525 &wq_create->u.response);
15526 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba,
15528 if (!bar_memmap_p) {
15529 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15530 "3263 WQ[%d] failed to memmap "
15531 "pci barset:x%x\n",
15532 wq->queue_id, pci_barset);
15536 db_offset = wq_create->u.response.doorbell_offset;
15537 if ((db_offset != LPFC_ULP0_WQ_DOORBELL) &&
15538 (db_offset != LPFC_ULP1_WQ_DOORBELL)) {
15539 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15540 "3252 WQ[%d] doorbell offset "
15541 "not supported: x%x\n",
15542 wq->queue_id, db_offset);
15546 wq->db_regaddr = bar_memmap_p + db_offset;
15547 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15548 "3264 WQ[%d]: barset:x%x, offset:x%x, "
15549 "format:x%x\n", wq->queue_id,
15550 pci_barset, db_offset, wq->db_format);
15552 wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
15554 /* Check if DPP was honored by the firmware */
15555 wq->dpp_enable = bf_get(lpfc_mbx_wq_create_dpp_rsp,
15556 &wq_create->u.response_1);
15557 if (wq->dpp_enable) {
15558 pci_barset = bf_get(lpfc_mbx_wq_create_v1_bar_set,
15559 &wq_create->u.response_1);
15560 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba,
15562 if (!bar_memmap_p) {
15563 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15564 "3267 WQ[%d] failed to memmap "
15565 "pci barset:x%x\n",
15566 wq->queue_id, pci_barset);
15570 db_offset = wq_create->u.response_1.doorbell_offset;
15571 wq->db_regaddr = bar_memmap_p + db_offset;
15572 wq->dpp_id = bf_get(lpfc_mbx_wq_create_dpp_id,
15573 &wq_create->u.response_1);
15574 dpp_barset = bf_get(lpfc_mbx_wq_create_dpp_bar,
15575 &wq_create->u.response_1);
15576 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba,
15578 if (!bar_memmap_p) {
15579 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15580 "3268 WQ[%d] failed to memmap "
15581 "pci barset:x%x\n",
15582 wq->queue_id, dpp_barset);
15586 dpp_offset = wq_create->u.response_1.dpp_offset;
15587 wq->dpp_regaddr = bar_memmap_p + dpp_offset;
15588 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15589 "3271 WQ[%d]: barset:x%x, offset:x%x, "
15590 "dpp_id:x%x dpp_barset:x%x "
15591 "dpp_offset:x%x\n",
15592 wq->queue_id, pci_barset, db_offset,
15593 wq->dpp_id, dpp_barset, dpp_offset);
15595 /* Enable combined writes for DPP aperture */
15596 pg_addr = (unsigned long)(wq->dpp_regaddr) & PAGE_MASK;
15598 rc = set_memory_wc(pg_addr, 1);
15600 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15601 "3272 Cannot setup Combined "
15602 "Write on WQ[%d] - disable DPP\n",
15604 phba->cfg_enable_dpp = 0;
15607 phba->cfg_enable_dpp = 0;
15610 wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
15612 wq->pring = kzalloc(sizeof(struct lpfc_sli_ring), GFP_KERNEL);
15613 if (wq->pring == NULL) {
15617 wq->type = LPFC_WQ;
15618 wq->assoc_qid = cq->queue_id;
15619 wq->subtype = subtype;
15620 wq->host_index = 0;
15622 wq->notify_interval = LPFC_WQ_NOTIFY_INTRVL;
15624 /* link the wq onto the parent cq child list */
15625 list_add_tail(&wq->list, &cq->child_list);
15627 mempool_free(mbox, phba->mbox_mem_pool);
15632 * lpfc_rq_create - Create a Receive Queue on the HBA
15633 * @phba: HBA structure that indicates port to create a queue on.
15634 * @hrq: The queue structure to use to create the header receive queue.
15635 * @drq: The queue structure to use to create the data receive queue.
15636 * @cq: The completion queue to bind this work queue to.
15638 * This function creates a receive buffer queue pair , as detailed in @hrq and
15639 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
15642 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
15643 * struct is used to get the entry count that is necessary to determine the
15644 * number of pages to use for this queue. The @cq is used to indicate which
15645 * completion queue to bind received buffers that are posted to these queues to.
15646 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
15647 * receive queue pair. This function is asynchronous and will wait for the
15648 * mailbox command to finish before continuing.
15650 * On success this function will return a zero. If unable to allocate enough
15651 * memory this function will return -ENOMEM. If the queue create mailbox command
15652 * fails this function will return -ENXIO.
15655 lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
15656 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
15658 struct lpfc_mbx_rq_create *rq_create;
15659 struct lpfc_dmabuf *dmabuf;
15660 LPFC_MBOXQ_t *mbox;
15661 int rc, length, status = 0;
15662 uint32_t shdr_status, shdr_add_status;
15663 union lpfc_sli4_cfg_shdr *shdr;
15664 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15665 void __iomem *bar_memmap_p;
15666 uint32_t db_offset;
15667 uint16_t pci_barset;
15669 /* sanity check on queue memory */
15670 if (!hrq || !drq || !cq)
15672 if (!phba->sli4_hba.pc_sli4_params.supported)
15673 hw_page_size = SLI4_PAGE_SIZE;
15675 if (hrq->entry_count != drq->entry_count)
15677 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15680 length = (sizeof(struct lpfc_mbx_rq_create) -
15681 sizeof(struct lpfc_sli4_cfg_mhdr));
15682 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15683 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
15684 length, LPFC_SLI4_MBX_EMBED);
15685 rq_create = &mbox->u.mqe.un.rq_create;
15686 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
15687 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15688 phba->sli4_hba.pc_sli4_params.rqv);
15689 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
15690 bf_set(lpfc_rq_context_rqe_count_1,
15691 &rq_create->u.request.context,
15693 rq_create->u.request.context.buffer_size = LPFC_HDR_BUF_SIZE;
15694 bf_set(lpfc_rq_context_rqe_size,
15695 &rq_create->u.request.context,
15697 bf_set(lpfc_rq_context_page_size,
15698 &rq_create->u.request.context,
15699 LPFC_RQ_PAGE_SIZE_4096);
15701 switch (hrq->entry_count) {
15703 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15704 "2535 Unsupported RQ count. (%d)\n",
15706 if (hrq->entry_count < 512) {
15710 /* fall through - otherwise default to smallest count */
15712 bf_set(lpfc_rq_context_rqe_count,
15713 &rq_create->u.request.context,
15714 LPFC_RQ_RING_SIZE_512);
15717 bf_set(lpfc_rq_context_rqe_count,
15718 &rq_create->u.request.context,
15719 LPFC_RQ_RING_SIZE_1024);
15722 bf_set(lpfc_rq_context_rqe_count,
15723 &rq_create->u.request.context,
15724 LPFC_RQ_RING_SIZE_2048);
15727 bf_set(lpfc_rq_context_rqe_count,
15728 &rq_create->u.request.context,
15729 LPFC_RQ_RING_SIZE_4096);
15732 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
15733 LPFC_HDR_BUF_SIZE);
15735 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
15737 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
15739 list_for_each_entry(dmabuf, &hrq->page_list, list) {
15740 memset(dmabuf->virt, 0, hw_page_size);
15741 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
15742 putPaddrLow(dmabuf->phys);
15743 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
15744 putPaddrHigh(dmabuf->phys);
15746 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
15747 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
15749 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15750 /* The IOCTL status is embedded in the mailbox subheader. */
15751 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15752 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15753 if (shdr_status || shdr_add_status || rc) {
15754 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15755 "2504 RQ_CREATE mailbox failed with "
15756 "status x%x add_status x%x, mbx status x%x\n",
15757 shdr_status, shdr_add_status, rc);
15761 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
15762 if (hrq->queue_id == 0xFFFF) {
15767 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
15768 hrq->db_format = bf_get(lpfc_mbx_rq_create_db_format,
15769 &rq_create->u.response);
15770 if ((hrq->db_format != LPFC_DB_LIST_FORMAT) &&
15771 (hrq->db_format != LPFC_DB_RING_FORMAT)) {
15772 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15773 "3262 RQ [%d] doorbell format not "
15774 "supported: x%x\n", hrq->queue_id,
15780 pci_barset = bf_get(lpfc_mbx_rq_create_bar_set,
15781 &rq_create->u.response);
15782 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
15783 if (!bar_memmap_p) {
15784 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15785 "3269 RQ[%d] failed to memmap pci "
15786 "barset:x%x\n", hrq->queue_id,
15792 db_offset = rq_create->u.response.doorbell_offset;
15793 if ((db_offset != LPFC_ULP0_RQ_DOORBELL) &&
15794 (db_offset != LPFC_ULP1_RQ_DOORBELL)) {
15795 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15796 "3270 RQ[%d] doorbell offset not "
15797 "supported: x%x\n", hrq->queue_id,
15802 hrq->db_regaddr = bar_memmap_p + db_offset;
15803 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15804 "3266 RQ[qid:%d]: barset:x%x, offset:x%x, "
15805 "format:x%x\n", hrq->queue_id, pci_barset,
15806 db_offset, hrq->db_format);
15808 hrq->db_format = LPFC_DB_RING_FORMAT;
15809 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
15811 hrq->type = LPFC_HRQ;
15812 hrq->assoc_qid = cq->queue_id;
15813 hrq->subtype = subtype;
15814 hrq->host_index = 0;
15815 hrq->hba_index = 0;
15816 hrq->notify_interval = LPFC_RQ_NOTIFY_INTRVL;
15818 /* now create the data queue */
15819 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15820 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
15821 length, LPFC_SLI4_MBX_EMBED);
15822 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15823 phba->sli4_hba.pc_sli4_params.rqv);
15824 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
15825 bf_set(lpfc_rq_context_rqe_count_1,
15826 &rq_create->u.request.context, hrq->entry_count);
15827 if (subtype == LPFC_NVMET)
15828 rq_create->u.request.context.buffer_size =
15829 LPFC_NVMET_DATA_BUF_SIZE;
15831 rq_create->u.request.context.buffer_size =
15832 LPFC_DATA_BUF_SIZE;
15833 bf_set(lpfc_rq_context_rqe_size, &rq_create->u.request.context,
15835 bf_set(lpfc_rq_context_page_size, &rq_create->u.request.context,
15836 (PAGE_SIZE/SLI4_PAGE_SIZE));
15838 switch (drq->entry_count) {
15840 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15841 "2536 Unsupported RQ count. (%d)\n",
15843 if (drq->entry_count < 512) {
15847 /* fall through - otherwise default to smallest count */
15849 bf_set(lpfc_rq_context_rqe_count,
15850 &rq_create->u.request.context,
15851 LPFC_RQ_RING_SIZE_512);
15854 bf_set(lpfc_rq_context_rqe_count,
15855 &rq_create->u.request.context,
15856 LPFC_RQ_RING_SIZE_1024);
15859 bf_set(lpfc_rq_context_rqe_count,
15860 &rq_create->u.request.context,
15861 LPFC_RQ_RING_SIZE_2048);
15864 bf_set(lpfc_rq_context_rqe_count,
15865 &rq_create->u.request.context,
15866 LPFC_RQ_RING_SIZE_4096);
15869 if (subtype == LPFC_NVMET)
15870 bf_set(lpfc_rq_context_buf_size,
15871 &rq_create->u.request.context,
15872 LPFC_NVMET_DATA_BUF_SIZE);
15874 bf_set(lpfc_rq_context_buf_size,
15875 &rq_create->u.request.context,
15876 LPFC_DATA_BUF_SIZE);
15878 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
15880 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
15882 list_for_each_entry(dmabuf, &drq->page_list, list) {
15883 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
15884 putPaddrLow(dmabuf->phys);
15885 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
15886 putPaddrHigh(dmabuf->phys);
15888 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
15889 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
15890 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15891 /* The IOCTL status is embedded in the mailbox subheader. */
15892 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
15893 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15894 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15895 if (shdr_status || shdr_add_status || rc) {
15899 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
15900 if (drq->queue_id == 0xFFFF) {
15904 drq->type = LPFC_DRQ;
15905 drq->assoc_qid = cq->queue_id;
15906 drq->subtype = subtype;
15907 drq->host_index = 0;
15908 drq->hba_index = 0;
15909 drq->notify_interval = LPFC_RQ_NOTIFY_INTRVL;
15911 /* link the header and data RQs onto the parent cq child list */
15912 list_add_tail(&hrq->list, &cq->child_list);
15913 list_add_tail(&drq->list, &cq->child_list);
15916 mempool_free(mbox, phba->mbox_mem_pool);
15921 * lpfc_mrq_create - Create MRQ Receive Queues on the HBA
15922 * @phba: HBA structure that indicates port to create a queue on.
15923 * @hrqp: The queue structure array to use to create the header receive queues.
15924 * @drqp: The queue structure array to use to create the data receive queues.
15925 * @cqp: The completion queue array to bind these receive queues to.
15927 * This function creates a receive buffer queue pair , as detailed in @hrq and
15928 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
15931 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
15932 * struct is used to get the entry count that is necessary to determine the
15933 * number of pages to use for this queue. The @cq is used to indicate which
15934 * completion queue to bind received buffers that are posted to these queues to.
15935 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
15936 * receive queue pair. This function is asynchronous and will wait for the
15937 * mailbox command to finish before continuing.
15939 * On success this function will return a zero. If unable to allocate enough
15940 * memory this function will return -ENOMEM. If the queue create mailbox command
15941 * fails this function will return -ENXIO.
15944 lpfc_mrq_create(struct lpfc_hba *phba, struct lpfc_queue **hrqp,
15945 struct lpfc_queue **drqp, struct lpfc_queue **cqp,
15948 struct lpfc_queue *hrq, *drq, *cq;
15949 struct lpfc_mbx_rq_create_v2 *rq_create;
15950 struct lpfc_dmabuf *dmabuf;
15951 LPFC_MBOXQ_t *mbox;
15952 int rc, length, alloclen, status = 0;
15953 int cnt, idx, numrq, page_idx = 0;
15954 uint32_t shdr_status, shdr_add_status;
15955 union lpfc_sli4_cfg_shdr *shdr;
15956 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15958 numrq = phba->cfg_nvmet_mrq;
15959 /* sanity check on array memory */
15960 if (!hrqp || !drqp || !cqp || !numrq)
15962 if (!phba->sli4_hba.pc_sli4_params.supported)
15963 hw_page_size = SLI4_PAGE_SIZE;
15965 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15969 length = sizeof(struct lpfc_mbx_rq_create_v2);
15970 length += ((2 * numrq * hrqp[0]->page_count) *
15971 sizeof(struct dma_address));
15973 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15974 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE, length,
15975 LPFC_SLI4_MBX_NEMBED);
15976 if (alloclen < length) {
15977 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15978 "3099 Allocated DMA memory size (%d) is "
15979 "less than the requested DMA memory size "
15980 "(%d)\n", alloclen, length);
15987 rq_create = mbox->sge_array->addr[0];
15988 shdr = (union lpfc_sli4_cfg_shdr *)&rq_create->cfg_shdr;
15990 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_Q_CREATE_VERSION_2);
15993 for (idx = 0; idx < numrq; idx++) {
15998 /* sanity check on queue memory */
15999 if (!hrq || !drq || !cq) {
16004 if (hrq->entry_count != drq->entry_count) {
16010 bf_set(lpfc_mbx_rq_create_num_pages,
16011 &rq_create->u.request,
16013 bf_set(lpfc_mbx_rq_create_rq_cnt,
16014 &rq_create->u.request, (numrq * 2));
16015 bf_set(lpfc_mbx_rq_create_dnb, &rq_create->u.request,
16017 bf_set(lpfc_rq_context_base_cq,
16018 &rq_create->u.request.context,
16020 bf_set(lpfc_rq_context_data_size,
16021 &rq_create->u.request.context,
16022 LPFC_NVMET_DATA_BUF_SIZE);
16023 bf_set(lpfc_rq_context_hdr_size,
16024 &rq_create->u.request.context,
16025 LPFC_HDR_BUF_SIZE);
16026 bf_set(lpfc_rq_context_rqe_count_1,
16027 &rq_create->u.request.context,
16029 bf_set(lpfc_rq_context_rqe_size,
16030 &rq_create->u.request.context,
16032 bf_set(lpfc_rq_context_page_size,
16033 &rq_create->u.request.context,
16034 (PAGE_SIZE/SLI4_PAGE_SIZE));
16037 list_for_each_entry(dmabuf, &hrq->page_list, list) {
16038 memset(dmabuf->virt, 0, hw_page_size);
16039 cnt = page_idx + dmabuf->buffer_tag;
16040 rq_create->u.request.page[cnt].addr_lo =
16041 putPaddrLow(dmabuf->phys);
16042 rq_create->u.request.page[cnt].addr_hi =
16043 putPaddrHigh(dmabuf->phys);
16049 list_for_each_entry(dmabuf, &drq->page_list, list) {
16050 memset(dmabuf->virt, 0, hw_page_size);
16051 cnt = page_idx + dmabuf->buffer_tag;
16052 rq_create->u.request.page[cnt].addr_lo =
16053 putPaddrLow(dmabuf->phys);
16054 rq_create->u.request.page[cnt].addr_hi =
16055 putPaddrHigh(dmabuf->phys);
16060 hrq->db_format = LPFC_DB_RING_FORMAT;
16061 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
16062 hrq->type = LPFC_HRQ;
16063 hrq->assoc_qid = cq->queue_id;
16064 hrq->subtype = subtype;
16065 hrq->host_index = 0;
16066 hrq->hba_index = 0;
16067 hrq->notify_interval = LPFC_RQ_NOTIFY_INTRVL;
16069 drq->db_format = LPFC_DB_RING_FORMAT;
16070 drq->db_regaddr = phba->sli4_hba.RQDBregaddr;
16071 drq->type = LPFC_DRQ;
16072 drq->assoc_qid = cq->queue_id;
16073 drq->subtype = subtype;
16074 drq->host_index = 0;
16075 drq->hba_index = 0;
16076 drq->notify_interval = LPFC_RQ_NOTIFY_INTRVL;
16078 list_add_tail(&hrq->list, &cq->child_list);
16079 list_add_tail(&drq->list, &cq->child_list);
16082 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16083 /* The IOCTL status is embedded in the mailbox subheader. */
16084 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16085 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16086 if (shdr_status || shdr_add_status || rc) {
16087 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16088 "3120 RQ_CREATE mailbox failed with "
16089 "status x%x add_status x%x, mbx status x%x\n",
16090 shdr_status, shdr_add_status, rc);
16094 rc = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
16095 if (rc == 0xFFFF) {
16100 /* Initialize all RQs with associated queue id */
16101 for (idx = 0; idx < numrq; idx++) {
16103 hrq->queue_id = rc + (2 * idx);
16105 drq->queue_id = rc + (2 * idx) + 1;
16109 lpfc_sli4_mbox_cmd_free(phba, mbox);
16114 * lpfc_eq_destroy - Destroy an event Queue on the HBA
16115 * @eq: The queue structure associated with the queue to destroy.
16117 * This function destroys a queue, as detailed in @eq by sending an mailbox
16118 * command, specific to the type of queue, to the HBA.
16120 * The @eq struct is used to get the queue ID of the queue to destroy.
16122 * On success this function will return a zero. If the queue destroy mailbox
16123 * command fails this function will return -ENXIO.
16126 lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
16128 LPFC_MBOXQ_t *mbox;
16129 int rc, length, status = 0;
16130 uint32_t shdr_status, shdr_add_status;
16131 union lpfc_sli4_cfg_shdr *shdr;
16133 /* sanity check on queue memory */
16137 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
16140 length = (sizeof(struct lpfc_mbx_eq_destroy) -
16141 sizeof(struct lpfc_sli4_cfg_mhdr));
16142 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16143 LPFC_MBOX_OPCODE_EQ_DESTROY,
16144 length, LPFC_SLI4_MBX_EMBED);
16145 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
16147 mbox->vport = eq->phba->pport;
16148 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16150 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
16151 /* The IOCTL status is embedded in the mailbox subheader. */
16152 shdr = (union lpfc_sli4_cfg_shdr *)
16153 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
16154 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16155 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16156 if (shdr_status || shdr_add_status || rc) {
16157 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16158 "2505 EQ_DESTROY mailbox failed with "
16159 "status x%x add_status x%x, mbx status x%x\n",
16160 shdr_status, shdr_add_status, rc);
16164 /* Remove eq from any list */
16165 list_del_init(&eq->list);
16166 mempool_free(mbox, eq->phba->mbox_mem_pool);
16171 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
16172 * @cq: The queue structure associated with the queue to destroy.
16174 * This function destroys a queue, as detailed in @cq by sending an mailbox
16175 * command, specific to the type of queue, to the HBA.
16177 * The @cq struct is used to get the queue ID of the queue to destroy.
16179 * On success this function will return a zero. If the queue destroy mailbox
16180 * command fails this function will return -ENXIO.
16183 lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
16185 LPFC_MBOXQ_t *mbox;
16186 int rc, length, status = 0;
16187 uint32_t shdr_status, shdr_add_status;
16188 union lpfc_sli4_cfg_shdr *shdr;
16190 /* sanity check on queue memory */
16193 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
16196 length = (sizeof(struct lpfc_mbx_cq_destroy) -
16197 sizeof(struct lpfc_sli4_cfg_mhdr));
16198 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16199 LPFC_MBOX_OPCODE_CQ_DESTROY,
16200 length, LPFC_SLI4_MBX_EMBED);
16201 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
16203 mbox->vport = cq->phba->pport;
16204 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16205 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
16206 /* The IOCTL status is embedded in the mailbox subheader. */
16207 shdr = (union lpfc_sli4_cfg_shdr *)
16208 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
16209 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16210 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16211 if (shdr_status || shdr_add_status || rc) {
16212 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16213 "2506 CQ_DESTROY mailbox failed with "
16214 "status x%x add_status x%x, mbx status x%x\n",
16215 shdr_status, shdr_add_status, rc);
16218 /* Remove cq from any list */
16219 list_del_init(&cq->list);
16220 mempool_free(mbox, cq->phba->mbox_mem_pool);
16225 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
16226 * @qm: The queue structure associated with the queue to destroy.
16228 * This function destroys a queue, as detailed in @mq by sending an mailbox
16229 * command, specific to the type of queue, to the HBA.
16231 * The @mq struct is used to get the queue ID of the queue to destroy.
16233 * On success this function will return a zero. If the queue destroy mailbox
16234 * command fails this function will return -ENXIO.
16237 lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
16239 LPFC_MBOXQ_t *mbox;
16240 int rc, length, status = 0;
16241 uint32_t shdr_status, shdr_add_status;
16242 union lpfc_sli4_cfg_shdr *shdr;
16244 /* sanity check on queue memory */
16247 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
16250 length = (sizeof(struct lpfc_mbx_mq_destroy) -
16251 sizeof(struct lpfc_sli4_cfg_mhdr));
16252 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16253 LPFC_MBOX_OPCODE_MQ_DESTROY,
16254 length, LPFC_SLI4_MBX_EMBED);
16255 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
16257 mbox->vport = mq->phba->pport;
16258 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16259 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
16260 /* The IOCTL status is embedded in the mailbox subheader. */
16261 shdr = (union lpfc_sli4_cfg_shdr *)
16262 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
16263 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16264 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16265 if (shdr_status || shdr_add_status || rc) {
16266 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16267 "2507 MQ_DESTROY mailbox failed with "
16268 "status x%x add_status x%x, mbx status x%x\n",
16269 shdr_status, shdr_add_status, rc);
16272 /* Remove mq from any list */
16273 list_del_init(&mq->list);
16274 mempool_free(mbox, mq->phba->mbox_mem_pool);
16279 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
16280 * @wq: The queue structure associated with the queue to destroy.
16282 * This function destroys a queue, as detailed in @wq by sending an mailbox
16283 * command, specific to the type of queue, to the HBA.
16285 * The @wq struct is used to get the queue ID of the queue to destroy.
16287 * On success this function will return a zero. If the queue destroy mailbox
16288 * command fails this function will return -ENXIO.
16291 lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
16293 LPFC_MBOXQ_t *mbox;
16294 int rc, length, status = 0;
16295 uint32_t shdr_status, shdr_add_status;
16296 union lpfc_sli4_cfg_shdr *shdr;
16298 /* sanity check on queue memory */
16301 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
16304 length = (sizeof(struct lpfc_mbx_wq_destroy) -
16305 sizeof(struct lpfc_sli4_cfg_mhdr));
16306 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16307 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
16308 length, LPFC_SLI4_MBX_EMBED);
16309 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
16311 mbox->vport = wq->phba->pport;
16312 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16313 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
16314 shdr = (union lpfc_sli4_cfg_shdr *)
16315 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
16316 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16317 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16318 if (shdr_status || shdr_add_status || rc) {
16319 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16320 "2508 WQ_DESTROY mailbox failed with "
16321 "status x%x add_status x%x, mbx status x%x\n",
16322 shdr_status, shdr_add_status, rc);
16325 /* Remove wq from any list */
16326 list_del_init(&wq->list);
16329 mempool_free(mbox, wq->phba->mbox_mem_pool);
16334 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
16335 * @rq: The queue structure associated with the queue to destroy.
16337 * This function destroys a queue, as detailed in @rq by sending an mailbox
16338 * command, specific to the type of queue, to the HBA.
16340 * The @rq struct is used to get the queue ID of the queue to destroy.
16342 * On success this function will return a zero. If the queue destroy mailbox
16343 * command fails this function will return -ENXIO.
16346 lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
16347 struct lpfc_queue *drq)
16349 LPFC_MBOXQ_t *mbox;
16350 int rc, length, status = 0;
16351 uint32_t shdr_status, shdr_add_status;
16352 union lpfc_sli4_cfg_shdr *shdr;
16354 /* sanity check on queue memory */
16357 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
16360 length = (sizeof(struct lpfc_mbx_rq_destroy) -
16361 sizeof(struct lpfc_sli4_cfg_mhdr));
16362 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16363 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
16364 length, LPFC_SLI4_MBX_EMBED);
16365 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
16367 mbox->vport = hrq->phba->pport;
16368 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16369 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
16370 /* The IOCTL status is embedded in the mailbox subheader. */
16371 shdr = (union lpfc_sli4_cfg_shdr *)
16372 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
16373 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16374 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16375 if (shdr_status || shdr_add_status || rc) {
16376 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16377 "2509 RQ_DESTROY mailbox failed with "
16378 "status x%x add_status x%x, mbx status x%x\n",
16379 shdr_status, shdr_add_status, rc);
16380 if (rc != MBX_TIMEOUT)
16381 mempool_free(mbox, hrq->phba->mbox_mem_pool);
16384 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
16386 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
16387 shdr = (union lpfc_sli4_cfg_shdr *)
16388 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
16389 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16390 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16391 if (shdr_status || shdr_add_status || rc) {
16392 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16393 "2510 RQ_DESTROY mailbox failed with "
16394 "status x%x add_status x%x, mbx status x%x\n",
16395 shdr_status, shdr_add_status, rc);
16398 list_del_init(&hrq->list);
16399 list_del_init(&drq->list);
16400 mempool_free(mbox, hrq->phba->mbox_mem_pool);
16405 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
16406 * @phba: The virtual port for which this call being executed.
16407 * @pdma_phys_addr0: Physical address of the 1st SGL page.
16408 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
16409 * @xritag: the xritag that ties this io to the SGL pages.
16411 * This routine will post the sgl pages for the IO that has the xritag
16412 * that is in the iocbq structure. The xritag is assigned during iocbq
16413 * creation and persists for as long as the driver is loaded.
16414 * if the caller has fewer than 256 scatter gather segments to map then
16415 * pdma_phys_addr1 should be 0.
16416 * If the caller needs to map more than 256 scatter gather segment then
16417 * pdma_phys_addr1 should be a valid physical address.
16418 * physical address for SGLs must be 64 byte aligned.
16419 * If you are going to map 2 SGL's then the first one must have 256 entries
16420 * the second sgl can have between 1 and 256 entries.
16424 * -ENXIO, -ENOMEM - Failure
16427 lpfc_sli4_post_sgl(struct lpfc_hba *phba,
16428 dma_addr_t pdma_phys_addr0,
16429 dma_addr_t pdma_phys_addr1,
16432 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
16433 LPFC_MBOXQ_t *mbox;
16435 uint32_t shdr_status, shdr_add_status;
16437 union lpfc_sli4_cfg_shdr *shdr;
16439 if (xritag == NO_XRI) {
16440 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16441 "0364 Invalid param:\n");
16445 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16449 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16450 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
16451 sizeof(struct lpfc_mbx_post_sgl_pages) -
16452 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
16454 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
16455 &mbox->u.mqe.un.post_sgl_pages;
16456 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
16457 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
16459 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
16460 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
16461 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
16462 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
16464 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
16465 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
16466 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
16467 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
16468 if (!phba->sli4_hba.intr_enable)
16469 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16471 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
16472 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16474 /* The IOCTL status is embedded in the mailbox subheader. */
16475 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
16476 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16477 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16478 if (rc != MBX_TIMEOUT)
16479 mempool_free(mbox, phba->mbox_mem_pool);
16480 if (shdr_status || shdr_add_status || rc) {
16481 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16482 "2511 POST_SGL mailbox failed with "
16483 "status x%x add_status x%x, mbx status x%x\n",
16484 shdr_status, shdr_add_status, rc);
16490 * lpfc_sli4_alloc_xri - Get an available rpi in the device's range
16491 * @phba: pointer to lpfc hba data structure.
16493 * This routine is invoked to post rpi header templates to the
16494 * HBA consistent with the SLI-4 interface spec. This routine
16495 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
16496 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
16499 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
16500 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
16503 lpfc_sli4_alloc_xri(struct lpfc_hba *phba)
16508 * Fetch the next logical xri. Because this index is logical,
16509 * the driver starts at 0 each time.
16511 spin_lock_irq(&phba->hbalock);
16512 xri = find_next_zero_bit(phba->sli4_hba.xri_bmask,
16513 phba->sli4_hba.max_cfg_param.max_xri, 0);
16514 if (xri >= phba->sli4_hba.max_cfg_param.max_xri) {
16515 spin_unlock_irq(&phba->hbalock);
16518 set_bit(xri, phba->sli4_hba.xri_bmask);
16519 phba->sli4_hba.max_cfg_param.xri_used++;
16521 spin_unlock_irq(&phba->hbalock);
16526 * lpfc_sli4_free_xri - Release an xri for reuse.
16527 * @phba: pointer to lpfc hba data structure.
16529 * This routine is invoked to release an xri to the pool of
16530 * available rpis maintained by the driver.
16533 __lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
16535 if (test_and_clear_bit(xri, phba->sli4_hba.xri_bmask)) {
16536 phba->sli4_hba.max_cfg_param.xri_used--;
16541 * lpfc_sli4_free_xri - Release an xri for reuse.
16542 * @phba: pointer to lpfc hba data structure.
16544 * This routine is invoked to release an xri to the pool of
16545 * available rpis maintained by the driver.
16548 lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
16550 spin_lock_irq(&phba->hbalock);
16551 __lpfc_sli4_free_xri(phba, xri);
16552 spin_unlock_irq(&phba->hbalock);
16556 * lpfc_sli4_next_xritag - Get an xritag for the io
16557 * @phba: Pointer to HBA context object.
16559 * This function gets an xritag for the iocb. If there is no unused xritag
16560 * it will return 0xffff.
16561 * The function returns the allocated xritag if successful, else returns zero.
16562 * Zero is not a valid xritag.
16563 * The caller is not required to hold any lock.
16566 lpfc_sli4_next_xritag(struct lpfc_hba *phba)
16568 uint16_t xri_index;
16570 xri_index = lpfc_sli4_alloc_xri(phba);
16571 if (xri_index == NO_XRI)
16572 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
16573 "2004 Failed to allocate XRI.last XRITAG is %d"
16574 " Max XRI is %d, Used XRI is %d\n",
16576 phba->sli4_hba.max_cfg_param.max_xri,
16577 phba->sli4_hba.max_cfg_param.xri_used);
16582 * lpfc_sli4_post_sgl_list - post a block of ELS sgls to the port.
16583 * @phba: pointer to lpfc hba data structure.
16584 * @post_sgl_list: pointer to els sgl entry list.
16585 * @count: number of els sgl entries on the list.
16587 * This routine is invoked to post a block of driver's sgl pages to the
16588 * HBA using non-embedded mailbox command. No Lock is held. This routine
16589 * is only called when the driver is loading and after all IO has been
16593 lpfc_sli4_post_sgl_list(struct lpfc_hba *phba,
16594 struct list_head *post_sgl_list,
16597 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
16598 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
16599 struct sgl_page_pairs *sgl_pg_pairs;
16601 LPFC_MBOXQ_t *mbox;
16602 uint32_t reqlen, alloclen, pg_pairs;
16604 uint16_t xritag_start = 0;
16606 uint32_t shdr_status, shdr_add_status;
16607 union lpfc_sli4_cfg_shdr *shdr;
16609 reqlen = post_cnt * sizeof(struct sgl_page_pairs) +
16610 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
16611 if (reqlen > SLI4_PAGE_SIZE) {
16612 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16613 "2559 Block sgl registration required DMA "
16614 "size (%d) great than a page\n", reqlen);
16618 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16622 /* Allocate DMA memory and set up the non-embedded mailbox command */
16623 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16624 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
16625 LPFC_SLI4_MBX_NEMBED);
16627 if (alloclen < reqlen) {
16628 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16629 "0285 Allocated DMA memory size (%d) is "
16630 "less than the requested DMA memory "
16631 "size (%d)\n", alloclen, reqlen);
16632 lpfc_sli4_mbox_cmd_free(phba, mbox);
16635 /* Set up the SGL pages in the non-embedded DMA pages */
16636 viraddr = mbox->sge_array->addr[0];
16637 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
16638 sgl_pg_pairs = &sgl->sgl_pg_pairs;
16641 list_for_each_entry_safe(sglq_entry, sglq_next, post_sgl_list, list) {
16642 /* Set up the sge entry */
16643 sgl_pg_pairs->sgl_pg0_addr_lo =
16644 cpu_to_le32(putPaddrLow(sglq_entry->phys));
16645 sgl_pg_pairs->sgl_pg0_addr_hi =
16646 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
16647 sgl_pg_pairs->sgl_pg1_addr_lo =
16648 cpu_to_le32(putPaddrLow(0));
16649 sgl_pg_pairs->sgl_pg1_addr_hi =
16650 cpu_to_le32(putPaddrHigh(0));
16652 /* Keep the first xritag on the list */
16654 xritag_start = sglq_entry->sli4_xritag;
16659 /* Complete initialization and perform endian conversion. */
16660 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
16661 bf_set(lpfc_post_sgl_pages_xricnt, sgl, post_cnt);
16662 sgl->word0 = cpu_to_le32(sgl->word0);
16664 if (!phba->sli4_hba.intr_enable)
16665 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16667 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
16668 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16670 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
16671 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16672 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16673 if (rc != MBX_TIMEOUT)
16674 lpfc_sli4_mbox_cmd_free(phba, mbox);
16675 if (shdr_status || shdr_add_status || rc) {
16676 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16677 "2513 POST_SGL_BLOCK mailbox command failed "
16678 "status x%x add_status x%x mbx status x%x\n",
16679 shdr_status, shdr_add_status, rc);
16686 * lpfc_sli4_post_io_sgl_block - post a block of nvme sgl list to firmware
16687 * @phba: pointer to lpfc hba data structure.
16688 * @nblist: pointer to nvme buffer list.
16689 * @count: number of scsi buffers on the list.
16691 * This routine is invoked to post a block of @count scsi sgl pages from a
16692 * SCSI buffer list @nblist to the HBA using non-embedded mailbox command.
16697 lpfc_sli4_post_io_sgl_block(struct lpfc_hba *phba, struct list_head *nblist,
16700 struct lpfc_io_buf *lpfc_ncmd;
16701 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
16702 struct sgl_page_pairs *sgl_pg_pairs;
16704 LPFC_MBOXQ_t *mbox;
16705 uint32_t reqlen, alloclen, pg_pairs;
16707 uint16_t xritag_start = 0;
16709 uint32_t shdr_status, shdr_add_status;
16710 dma_addr_t pdma_phys_bpl1;
16711 union lpfc_sli4_cfg_shdr *shdr;
16713 /* Calculate the requested length of the dma memory */
16714 reqlen = count * sizeof(struct sgl_page_pairs) +
16715 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
16716 if (reqlen > SLI4_PAGE_SIZE) {
16717 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
16718 "6118 Block sgl registration required DMA "
16719 "size (%d) great than a page\n", reqlen);
16722 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16724 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16725 "6119 Failed to allocate mbox cmd memory\n");
16729 /* Allocate DMA memory and set up the non-embedded mailbox command */
16730 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16731 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
16732 reqlen, LPFC_SLI4_MBX_NEMBED);
16734 if (alloclen < reqlen) {
16735 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16736 "6120 Allocated DMA memory size (%d) is "
16737 "less than the requested DMA memory "
16738 "size (%d)\n", alloclen, reqlen);
16739 lpfc_sli4_mbox_cmd_free(phba, mbox);
16743 /* Get the first SGE entry from the non-embedded DMA memory */
16744 viraddr = mbox->sge_array->addr[0];
16746 /* Set up the SGL pages in the non-embedded DMA pages */
16747 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
16748 sgl_pg_pairs = &sgl->sgl_pg_pairs;
16751 list_for_each_entry(lpfc_ncmd, nblist, list) {
16752 /* Set up the sge entry */
16753 sgl_pg_pairs->sgl_pg0_addr_lo =
16754 cpu_to_le32(putPaddrLow(lpfc_ncmd->dma_phys_sgl));
16755 sgl_pg_pairs->sgl_pg0_addr_hi =
16756 cpu_to_le32(putPaddrHigh(lpfc_ncmd->dma_phys_sgl));
16757 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
16758 pdma_phys_bpl1 = lpfc_ncmd->dma_phys_sgl +
16761 pdma_phys_bpl1 = 0;
16762 sgl_pg_pairs->sgl_pg1_addr_lo =
16763 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
16764 sgl_pg_pairs->sgl_pg1_addr_hi =
16765 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
16766 /* Keep the first xritag on the list */
16768 xritag_start = lpfc_ncmd->cur_iocbq.sli4_xritag;
16772 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
16773 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
16774 /* Perform endian conversion if necessary */
16775 sgl->word0 = cpu_to_le32(sgl->word0);
16777 if (!phba->sli4_hba.intr_enable) {
16778 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16780 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
16781 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16783 shdr = (union lpfc_sli4_cfg_shdr *)&sgl->cfg_shdr;
16784 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16785 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16786 if (rc != MBX_TIMEOUT)
16787 lpfc_sli4_mbox_cmd_free(phba, mbox);
16788 if (shdr_status || shdr_add_status || rc) {
16789 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16790 "6125 POST_SGL_BLOCK mailbox command failed "
16791 "status x%x add_status x%x mbx status x%x\n",
16792 shdr_status, shdr_add_status, rc);
16799 * lpfc_sli4_post_io_sgl_list - Post blocks of nvme buffer sgls from a list
16800 * @phba: pointer to lpfc hba data structure.
16801 * @post_nblist: pointer to the nvme buffer list.
16803 * This routine walks a list of nvme buffers that was passed in. It attempts
16804 * to construct blocks of nvme buffer sgls which contains contiguous xris and
16805 * uses the non-embedded SGL block post mailbox commands to post to the port.
16806 * For single NVME buffer sgl with non-contiguous xri, if any, it shall use
16807 * embedded SGL post mailbox command for posting. The @post_nblist passed in
16808 * must be local list, thus no lock is needed when manipulate the list.
16810 * Returns: 0 = failure, non-zero number of successfully posted buffers.
16813 lpfc_sli4_post_io_sgl_list(struct lpfc_hba *phba,
16814 struct list_head *post_nblist, int sb_count)
16816 struct lpfc_io_buf *lpfc_ncmd, *lpfc_ncmd_next;
16817 int status, sgl_size;
16818 int post_cnt = 0, block_cnt = 0, num_posting = 0, num_posted = 0;
16819 dma_addr_t pdma_phys_sgl1;
16820 int last_xritag = NO_XRI;
16822 LIST_HEAD(prep_nblist);
16823 LIST_HEAD(blck_nblist);
16824 LIST_HEAD(nvme_nblist);
16830 sgl_size = phba->cfg_sg_dma_buf_size;
16831 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, post_nblist, list) {
16832 list_del_init(&lpfc_ncmd->list);
16834 if ((last_xritag != NO_XRI) &&
16835 (lpfc_ncmd->cur_iocbq.sli4_xritag != last_xritag + 1)) {
16836 /* a hole in xri block, form a sgl posting block */
16837 list_splice_init(&prep_nblist, &blck_nblist);
16838 post_cnt = block_cnt - 1;
16839 /* prepare list for next posting block */
16840 list_add_tail(&lpfc_ncmd->list, &prep_nblist);
16843 /* prepare list for next posting block */
16844 list_add_tail(&lpfc_ncmd->list, &prep_nblist);
16845 /* enough sgls for non-embed sgl mbox command */
16846 if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
16847 list_splice_init(&prep_nblist, &blck_nblist);
16848 post_cnt = block_cnt;
16853 last_xritag = lpfc_ncmd->cur_iocbq.sli4_xritag;
16855 /* end of repost sgl list condition for NVME buffers */
16856 if (num_posting == sb_count) {
16857 if (post_cnt == 0) {
16858 /* last sgl posting block */
16859 list_splice_init(&prep_nblist, &blck_nblist);
16860 post_cnt = block_cnt;
16861 } else if (block_cnt == 1) {
16862 /* last single sgl with non-contiguous xri */
16863 if (sgl_size > SGL_PAGE_SIZE)
16865 lpfc_ncmd->dma_phys_sgl +
16868 pdma_phys_sgl1 = 0;
16869 cur_xritag = lpfc_ncmd->cur_iocbq.sli4_xritag;
16870 status = lpfc_sli4_post_sgl(
16871 phba, lpfc_ncmd->dma_phys_sgl,
16872 pdma_phys_sgl1, cur_xritag);
16874 /* Post error. Buffer unavailable. */
16875 lpfc_ncmd->flags |=
16876 LPFC_SBUF_NOT_POSTED;
16878 /* Post success. Bffer available. */
16879 lpfc_ncmd->flags &=
16880 ~LPFC_SBUF_NOT_POSTED;
16881 lpfc_ncmd->status = IOSTAT_SUCCESS;
16884 /* success, put on NVME buffer sgl list */
16885 list_add_tail(&lpfc_ncmd->list, &nvme_nblist);
16889 /* continue until a nembed page worth of sgls */
16893 /* post block of NVME buffer list sgls */
16894 status = lpfc_sli4_post_io_sgl_block(phba, &blck_nblist,
16897 /* don't reset xirtag due to hole in xri block */
16898 if (block_cnt == 0)
16899 last_xritag = NO_XRI;
16901 /* reset NVME buffer post count for next round of posting */
16904 /* put posted NVME buffer-sgl posted on NVME buffer sgl list */
16905 while (!list_empty(&blck_nblist)) {
16906 list_remove_head(&blck_nblist, lpfc_ncmd,
16907 struct lpfc_io_buf, list);
16909 /* Post error. Mark buffer unavailable. */
16910 lpfc_ncmd->flags |= LPFC_SBUF_NOT_POSTED;
16912 /* Post success, Mark buffer available. */
16913 lpfc_ncmd->flags &= ~LPFC_SBUF_NOT_POSTED;
16914 lpfc_ncmd->status = IOSTAT_SUCCESS;
16917 list_add_tail(&lpfc_ncmd->list, &nvme_nblist);
16920 /* Push NVME buffers with sgl posted to the available list */
16921 lpfc_io_buf_replenish(phba, &nvme_nblist);
16927 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
16928 * @phba: pointer to lpfc_hba struct that the frame was received on
16929 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
16931 * This function checks the fields in the @fc_hdr to see if the FC frame is a
16932 * valid type of frame that the LPFC driver will handle. This function will
16933 * return a zero if the frame is a valid frame or a non zero value when the
16934 * frame does not pass the check.
16937 lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
16939 /* make rctl_names static to save stack space */
16940 struct fc_vft_header *fc_vft_hdr;
16941 uint32_t *header = (uint32_t *) fc_hdr;
16943 switch (fc_hdr->fh_r_ctl) {
16944 case FC_RCTL_DD_UNCAT: /* uncategorized information */
16945 case FC_RCTL_DD_SOL_DATA: /* solicited data */
16946 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
16947 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
16948 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
16949 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
16950 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
16951 case FC_RCTL_DD_CMD_STATUS: /* command status */
16952 case FC_RCTL_ELS_REQ: /* extended link services request */
16953 case FC_RCTL_ELS_REP: /* extended link services reply */
16954 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
16955 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
16956 case FC_RCTL_BA_NOP: /* basic link service NOP */
16957 case FC_RCTL_BA_ABTS: /* basic link service abort */
16958 case FC_RCTL_BA_RMC: /* remove connection */
16959 case FC_RCTL_BA_ACC: /* basic accept */
16960 case FC_RCTL_BA_RJT: /* basic reject */
16961 case FC_RCTL_BA_PRMT:
16962 case FC_RCTL_ACK_1: /* acknowledge_1 */
16963 case FC_RCTL_ACK_0: /* acknowledge_0 */
16964 case FC_RCTL_P_RJT: /* port reject */
16965 case FC_RCTL_F_RJT: /* fabric reject */
16966 case FC_RCTL_P_BSY: /* port busy */
16967 case FC_RCTL_F_BSY: /* fabric busy to data frame */
16968 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
16969 case FC_RCTL_LCR: /* link credit reset */
16970 case FC_RCTL_MDS_DIAGS: /* MDS Diagnostics */
16971 case FC_RCTL_END: /* end */
16973 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
16974 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
16975 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
16976 return lpfc_fc_frame_check(phba, fc_hdr);
16981 switch (fc_hdr->fh_type) {
16994 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
16995 "2538 Received frame rctl:x%x, type:x%x, "
16996 "frame Data:%08x %08x %08x %08x %08x %08x %08x\n",
16997 fc_hdr->fh_r_ctl, fc_hdr->fh_type,
16998 be32_to_cpu(header[0]), be32_to_cpu(header[1]),
16999 be32_to_cpu(header[2]), be32_to_cpu(header[3]),
17000 be32_to_cpu(header[4]), be32_to_cpu(header[5]),
17001 be32_to_cpu(header[6]));
17004 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
17005 "2539 Dropped frame rctl:x%x type:x%x\n",
17006 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
17011 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
17012 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
17014 * This function processes the FC header to retrieve the VFI from the VF
17015 * header, if one exists. This function will return the VFI if one exists
17016 * or 0 if no VSAN Header exists.
17019 lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
17021 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
17023 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
17025 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
17029 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
17030 * @phba: Pointer to the HBA structure to search for the vport on
17031 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
17032 * @fcfi: The FC Fabric ID that the frame came from
17034 * This function searches the @phba for a vport that matches the content of the
17035 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
17036 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
17037 * returns the matching vport pointer or NULL if unable to match frame to a
17040 static struct lpfc_vport *
17041 lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
17042 uint16_t fcfi, uint32_t did)
17044 struct lpfc_vport **vports;
17045 struct lpfc_vport *vport = NULL;
17048 if (did == Fabric_DID)
17049 return phba->pport;
17050 if ((phba->pport->fc_flag & FC_PT2PT) &&
17051 !(phba->link_state == LPFC_HBA_READY))
17052 return phba->pport;
17054 vports = lpfc_create_vport_work_array(phba);
17055 if (vports != NULL) {
17056 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
17057 if (phba->fcf.fcfi == fcfi &&
17058 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
17059 vports[i]->fc_myDID == did) {
17065 lpfc_destroy_vport_work_array(phba, vports);
17070 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
17071 * @vport: The vport to work on.
17073 * This function updates the receive sequence time stamp for this vport. The
17074 * receive sequence time stamp indicates the time that the last frame of the
17075 * the sequence that has been idle for the longest amount of time was received.
17076 * the driver uses this time stamp to indicate if any received sequences have
17080 lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
17082 struct lpfc_dmabuf *h_buf;
17083 struct hbq_dmabuf *dmabuf = NULL;
17085 /* get the oldest sequence on the rcv list */
17086 h_buf = list_get_first(&vport->rcv_buffer_list,
17087 struct lpfc_dmabuf, list);
17090 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
17091 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
17095 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
17096 * @vport: The vport that the received sequences were sent to.
17098 * This function cleans up all outstanding received sequences. This is called
17099 * by the driver when a link event or user action invalidates all the received
17103 lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
17105 struct lpfc_dmabuf *h_buf, *hnext;
17106 struct lpfc_dmabuf *d_buf, *dnext;
17107 struct hbq_dmabuf *dmabuf = NULL;
17109 /* start with the oldest sequence on the rcv list */
17110 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
17111 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
17112 list_del_init(&dmabuf->hbuf.list);
17113 list_for_each_entry_safe(d_buf, dnext,
17114 &dmabuf->dbuf.list, list) {
17115 list_del_init(&d_buf->list);
17116 lpfc_in_buf_free(vport->phba, d_buf);
17118 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
17123 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
17124 * @vport: The vport that the received sequences were sent to.
17126 * This function determines whether any received sequences have timed out by
17127 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
17128 * indicates that there is at least one timed out sequence this routine will
17129 * go through the received sequences one at a time from most inactive to most
17130 * active to determine which ones need to be cleaned up. Once it has determined
17131 * that a sequence needs to be cleaned up it will simply free up the resources
17132 * without sending an abort.
17135 lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
17137 struct lpfc_dmabuf *h_buf, *hnext;
17138 struct lpfc_dmabuf *d_buf, *dnext;
17139 struct hbq_dmabuf *dmabuf = NULL;
17140 unsigned long timeout;
17141 int abort_count = 0;
17143 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
17144 vport->rcv_buffer_time_stamp);
17145 if (list_empty(&vport->rcv_buffer_list) ||
17146 time_before(jiffies, timeout))
17148 /* start with the oldest sequence on the rcv list */
17149 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
17150 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
17151 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
17152 dmabuf->time_stamp);
17153 if (time_before(jiffies, timeout))
17156 list_del_init(&dmabuf->hbuf.list);
17157 list_for_each_entry_safe(d_buf, dnext,
17158 &dmabuf->dbuf.list, list) {
17159 list_del_init(&d_buf->list);
17160 lpfc_in_buf_free(vport->phba, d_buf);
17162 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
17165 lpfc_update_rcv_time_stamp(vport);
17169 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
17170 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
17172 * This function searches through the existing incomplete sequences that have
17173 * been sent to this @vport. If the frame matches one of the incomplete
17174 * sequences then the dbuf in the @dmabuf is added to the list of frames that
17175 * make up that sequence. If no sequence is found that matches this frame then
17176 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
17177 * This function returns a pointer to the first dmabuf in the sequence list that
17178 * the frame was linked to.
17180 static struct hbq_dmabuf *
17181 lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
17183 struct fc_frame_header *new_hdr;
17184 struct fc_frame_header *temp_hdr;
17185 struct lpfc_dmabuf *d_buf;
17186 struct lpfc_dmabuf *h_buf;
17187 struct hbq_dmabuf *seq_dmabuf = NULL;
17188 struct hbq_dmabuf *temp_dmabuf = NULL;
17191 INIT_LIST_HEAD(&dmabuf->dbuf.list);
17192 dmabuf->time_stamp = jiffies;
17193 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
17195 /* Use the hdr_buf to find the sequence that this frame belongs to */
17196 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
17197 temp_hdr = (struct fc_frame_header *)h_buf->virt;
17198 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
17199 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
17200 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
17202 /* found a pending sequence that matches this frame */
17203 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
17208 * This indicates first frame received for this sequence.
17209 * Queue the buffer on the vport's rcv_buffer_list.
17211 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
17212 lpfc_update_rcv_time_stamp(vport);
17215 temp_hdr = seq_dmabuf->hbuf.virt;
17216 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
17217 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
17218 list_del_init(&seq_dmabuf->hbuf.list);
17219 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
17220 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
17221 lpfc_update_rcv_time_stamp(vport);
17224 /* move this sequence to the tail to indicate a young sequence */
17225 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
17226 seq_dmabuf->time_stamp = jiffies;
17227 lpfc_update_rcv_time_stamp(vport);
17228 if (list_empty(&seq_dmabuf->dbuf.list)) {
17229 temp_hdr = dmabuf->hbuf.virt;
17230 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
17233 /* find the correct place in the sequence to insert this frame */
17234 d_buf = list_entry(seq_dmabuf->dbuf.list.prev, typeof(*d_buf), list);
17236 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
17237 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
17239 * If the frame's sequence count is greater than the frame on
17240 * the list then insert the frame right after this frame
17242 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
17243 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
17244 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
17249 if (&d_buf->list == &seq_dmabuf->dbuf.list)
17251 d_buf = list_entry(d_buf->list.prev, typeof(*d_buf), list);
17260 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
17261 * @vport: pointer to a vitural port
17262 * @dmabuf: pointer to a dmabuf that describes the FC sequence
17264 * This function tries to abort from the partially assembed sequence, described
17265 * by the information from basic abbort @dmabuf. It checks to see whether such
17266 * partially assembled sequence held by the driver. If so, it shall free up all
17267 * the frames from the partially assembled sequence.
17270 * true -- if there is matching partially assembled sequence present and all
17271 * the frames freed with the sequence;
17272 * false -- if there is no matching partially assembled sequence present so
17273 * nothing got aborted in the lower layer driver
17276 lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
17277 struct hbq_dmabuf *dmabuf)
17279 struct fc_frame_header *new_hdr;
17280 struct fc_frame_header *temp_hdr;
17281 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
17282 struct hbq_dmabuf *seq_dmabuf = NULL;
17284 /* Use the hdr_buf to find the sequence that matches this frame */
17285 INIT_LIST_HEAD(&dmabuf->dbuf.list);
17286 INIT_LIST_HEAD(&dmabuf->hbuf.list);
17287 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
17288 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
17289 temp_hdr = (struct fc_frame_header *)h_buf->virt;
17290 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
17291 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
17292 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
17294 /* found a pending sequence that matches this frame */
17295 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
17299 /* Free up all the frames from the partially assembled sequence */
17301 list_for_each_entry_safe(d_buf, n_buf,
17302 &seq_dmabuf->dbuf.list, list) {
17303 list_del_init(&d_buf->list);
17304 lpfc_in_buf_free(vport->phba, d_buf);
17312 * lpfc_sli4_abort_ulp_seq - Abort assembled unsol sequence from ulp
17313 * @vport: pointer to a vitural port
17314 * @dmabuf: pointer to a dmabuf that describes the FC sequence
17316 * This function tries to abort from the assembed sequence from upper level
17317 * protocol, described by the information from basic abbort @dmabuf. It
17318 * checks to see whether such pending context exists at upper level protocol.
17319 * If so, it shall clean up the pending context.
17322 * true -- if there is matching pending context of the sequence cleaned
17324 * false -- if there is no matching pending context of the sequence present
17328 lpfc_sli4_abort_ulp_seq(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
17330 struct lpfc_hba *phba = vport->phba;
17333 /* Accepting abort at ulp with SLI4 only */
17334 if (phba->sli_rev < LPFC_SLI_REV4)
17337 /* Register all caring upper level protocols to attend abort */
17338 handled = lpfc_ct_handle_unsol_abort(phba, dmabuf);
17346 * lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler
17347 * @phba: Pointer to HBA context object.
17348 * @cmd_iocbq: pointer to the command iocbq structure.
17349 * @rsp_iocbq: pointer to the response iocbq structure.
17351 * This function handles the sequence abort response iocb command complete
17352 * event. It properly releases the memory allocated to the sequence abort
17356 lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba *phba,
17357 struct lpfc_iocbq *cmd_iocbq,
17358 struct lpfc_iocbq *rsp_iocbq)
17360 struct lpfc_nodelist *ndlp;
17363 ndlp = (struct lpfc_nodelist *)cmd_iocbq->context1;
17364 lpfc_nlp_put(ndlp);
17365 lpfc_nlp_not_used(ndlp);
17366 lpfc_sli_release_iocbq(phba, cmd_iocbq);
17369 /* Failure means BLS ABORT RSP did not get delivered to remote node*/
17370 if (rsp_iocbq && rsp_iocbq->iocb.ulpStatus)
17371 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17372 "3154 BLS ABORT RSP failed, data: x%x/x%x\n",
17373 rsp_iocbq->iocb.ulpStatus,
17374 rsp_iocbq->iocb.un.ulpWord[4]);
17378 * lpfc_sli4_xri_inrange - check xri is in range of xris owned by driver.
17379 * @phba: Pointer to HBA context object.
17380 * @xri: xri id in transaction.
17382 * This function validates the xri maps to the known range of XRIs allocated an
17383 * used by the driver.
17386 lpfc_sli4_xri_inrange(struct lpfc_hba *phba,
17391 for (i = 0; i < phba->sli4_hba.max_cfg_param.max_xri; i++) {
17392 if (xri == phba->sli4_hba.xri_ids[i])
17399 * lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort
17400 * @phba: Pointer to HBA context object.
17401 * @fc_hdr: pointer to a FC frame header.
17403 * This function sends a basic response to a previous unsol sequence abort
17404 * event after aborting the sequence handling.
17407 lpfc_sli4_seq_abort_rsp(struct lpfc_vport *vport,
17408 struct fc_frame_header *fc_hdr, bool aborted)
17410 struct lpfc_hba *phba = vport->phba;
17411 struct lpfc_iocbq *ctiocb = NULL;
17412 struct lpfc_nodelist *ndlp;
17413 uint16_t oxid, rxid, xri, lxri;
17414 uint32_t sid, fctl;
17418 if (!lpfc_is_link_up(phba))
17421 sid = sli4_sid_from_fc_hdr(fc_hdr);
17422 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
17423 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
17425 ndlp = lpfc_findnode_did(vport, sid);
17427 ndlp = lpfc_nlp_init(vport, sid);
17429 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
17430 "1268 Failed to allocate ndlp for "
17431 "oxid:x%x SID:x%x\n", oxid, sid);
17434 /* Put ndlp onto pport node list */
17435 lpfc_enqueue_node(vport, ndlp);
17436 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
17437 /* re-setup ndlp without removing from node list */
17438 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
17440 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
17441 "3275 Failed to active ndlp found "
17442 "for oxid:x%x SID:x%x\n", oxid, sid);
17447 /* Allocate buffer for rsp iocb */
17448 ctiocb = lpfc_sli_get_iocbq(phba);
17452 /* Extract the F_CTL field from FC_HDR */
17453 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
17455 icmd = &ctiocb->iocb;
17456 icmd->un.xseq64.bdl.bdeSize = 0;
17457 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
17458 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
17459 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
17460 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
17462 /* Fill in the rest of iocb fields */
17463 icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
17464 icmd->ulpBdeCount = 0;
17466 icmd->ulpClass = CLASS3;
17467 icmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
17468 ctiocb->context1 = lpfc_nlp_get(ndlp);
17470 ctiocb->vport = phba->pport;
17471 ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_rsp_cmpl;
17472 ctiocb->sli4_lxritag = NO_XRI;
17473 ctiocb->sli4_xritag = NO_XRI;
17475 if (fctl & FC_FC_EX_CTX)
17476 /* Exchange responder sent the abort so we
17482 lxri = lpfc_sli4_xri_inrange(phba, xri);
17483 if (lxri != NO_XRI)
17484 lpfc_set_rrq_active(phba, ndlp, lxri,
17485 (xri == oxid) ? rxid : oxid, 0);
17486 /* For BA_ABTS from exchange responder, if the logical xri with
17487 * the oxid maps to the FCP XRI range, the port no longer has
17488 * that exchange context, send a BLS_RJT. Override the IOCB for
17491 if ((fctl & FC_FC_EX_CTX) &&
17492 (lxri > lpfc_sli4_get_iocb_cnt(phba))) {
17493 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
17494 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
17495 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
17496 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
17499 /* If BA_ABTS failed to abort a partially assembled receive sequence,
17500 * the driver no longer has that exchange, send a BLS_RJT. Override
17501 * the IOCB for a BA_RJT.
17503 if (aborted == false) {
17504 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
17505 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
17506 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
17507 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
17510 if (fctl & FC_FC_EX_CTX) {
17511 /* ABTS sent by responder to CT exchange, construction
17512 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
17513 * field and RX_ID from ABTS for RX_ID field.
17515 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_RSP);
17517 /* ABTS sent by initiator to CT exchange, construction
17518 * of BA_ACC will need to allocate a new XRI as for the
17521 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_INT);
17523 bf_set(lpfc_abts_rxid, &icmd->un.bls_rsp, rxid);
17524 bf_set(lpfc_abts_oxid, &icmd->un.bls_rsp, oxid);
17526 /* Xmit CT abts response on exchange <xid> */
17527 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
17528 "1200 Send BLS cmd x%x on oxid x%x Data: x%x\n",
17529 icmd->un.xseq64.w5.hcsw.Rctl, oxid, phba->link_state);
17531 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
17532 if (rc == IOCB_ERROR) {
17533 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
17534 "2925 Failed to issue CT ABTS RSP x%x on "
17535 "xri x%x, Data x%x\n",
17536 icmd->un.xseq64.w5.hcsw.Rctl, oxid,
17538 lpfc_nlp_put(ndlp);
17539 ctiocb->context1 = NULL;
17540 lpfc_sli_release_iocbq(phba, ctiocb);
17545 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
17546 * @vport: Pointer to the vport on which this sequence was received
17547 * @dmabuf: pointer to a dmabuf that describes the FC sequence
17549 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
17550 * receive sequence is only partially assembed by the driver, it shall abort
17551 * the partially assembled frames for the sequence. Otherwise, if the
17552 * unsolicited receive sequence has been completely assembled and passed to
17553 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
17554 * unsolicited sequence has been aborted. After that, it will issue a basic
17555 * accept to accept the abort.
17558 lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
17559 struct hbq_dmabuf *dmabuf)
17561 struct lpfc_hba *phba = vport->phba;
17562 struct fc_frame_header fc_hdr;
17566 /* Make a copy of fc_hdr before the dmabuf being released */
17567 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
17568 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
17570 if (fctl & FC_FC_EX_CTX) {
17571 /* ABTS by responder to exchange, no cleanup needed */
17574 /* ABTS by initiator to exchange, need to do cleanup */
17575 aborted = lpfc_sli4_abort_partial_seq(vport, dmabuf);
17576 if (aborted == false)
17577 aborted = lpfc_sli4_abort_ulp_seq(vport, dmabuf);
17579 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17581 if (phba->nvmet_support) {
17582 lpfc_nvmet_rcv_unsol_abort(vport, &fc_hdr);
17586 /* Respond with BA_ACC or BA_RJT accordingly */
17587 lpfc_sli4_seq_abort_rsp(vport, &fc_hdr, aborted);
17591 * lpfc_seq_complete - Indicates if a sequence is complete
17592 * @dmabuf: pointer to a dmabuf that describes the FC sequence
17594 * This function checks the sequence, starting with the frame described by
17595 * @dmabuf, to see if all the frames associated with this sequence are present.
17596 * the frames associated with this sequence are linked to the @dmabuf using the
17597 * dbuf list. This function looks for two major things. 1) That the first frame
17598 * has a sequence count of zero. 2) There is a frame with last frame of sequence
17599 * set. 3) That there are no holes in the sequence count. The function will
17600 * return 1 when the sequence is complete, otherwise it will return 0.
17603 lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
17605 struct fc_frame_header *hdr;
17606 struct lpfc_dmabuf *d_buf;
17607 struct hbq_dmabuf *seq_dmabuf;
17611 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
17612 /* make sure first fame of sequence has a sequence count of zero */
17613 if (hdr->fh_seq_cnt != seq_count)
17615 fctl = (hdr->fh_f_ctl[0] << 16 |
17616 hdr->fh_f_ctl[1] << 8 |
17618 /* If last frame of sequence we can return success. */
17619 if (fctl & FC_FC_END_SEQ)
17621 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
17622 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
17623 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
17624 /* If there is a hole in the sequence count then fail. */
17625 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
17627 fctl = (hdr->fh_f_ctl[0] << 16 |
17628 hdr->fh_f_ctl[1] << 8 |
17630 /* If last frame of sequence we can return success. */
17631 if (fctl & FC_FC_END_SEQ)
17638 * lpfc_prep_seq - Prep sequence for ULP processing
17639 * @vport: Pointer to the vport on which this sequence was received
17640 * @dmabuf: pointer to a dmabuf that describes the FC sequence
17642 * This function takes a sequence, described by a list of frames, and creates
17643 * a list of iocbq structures to describe the sequence. This iocbq list will be
17644 * used to issue to the generic unsolicited sequence handler. This routine
17645 * returns a pointer to the first iocbq in the list. If the function is unable
17646 * to allocate an iocbq then it throw out the received frames that were not
17647 * able to be described and return a pointer to the first iocbq. If unable to
17648 * allocate any iocbqs (including the first) this function will return NULL.
17650 static struct lpfc_iocbq *
17651 lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
17653 struct hbq_dmabuf *hbq_buf;
17654 struct lpfc_dmabuf *d_buf, *n_buf;
17655 struct lpfc_iocbq *first_iocbq, *iocbq;
17656 struct fc_frame_header *fc_hdr;
17658 uint32_t len, tot_len;
17659 struct ulp_bde64 *pbde;
17661 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
17662 /* remove from receive buffer list */
17663 list_del_init(&seq_dmabuf->hbuf.list);
17664 lpfc_update_rcv_time_stamp(vport);
17665 /* get the Remote Port's SID */
17666 sid = sli4_sid_from_fc_hdr(fc_hdr);
17668 /* Get an iocbq struct to fill in. */
17669 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
17671 /* Initialize the first IOCB. */
17672 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
17673 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
17674 first_iocbq->vport = vport;
17676 /* Check FC Header to see what TYPE of frame we are rcv'ing */
17677 if (sli4_type_from_fc_hdr(fc_hdr) == FC_TYPE_ELS) {
17678 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_ELS64_CX;
17679 first_iocbq->iocb.un.rcvels.parmRo =
17680 sli4_did_from_fc_hdr(fc_hdr);
17681 first_iocbq->iocb.ulpPU = PARM_NPIV_DID;
17683 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
17684 first_iocbq->iocb.ulpContext = NO_XRI;
17685 first_iocbq->iocb.unsli3.rcvsli3.ox_id =
17686 be16_to_cpu(fc_hdr->fh_ox_id);
17687 /* iocbq is prepped for internal consumption. Physical vpi. */
17688 first_iocbq->iocb.unsli3.rcvsli3.vpi =
17689 vport->phba->vpi_ids[vport->vpi];
17690 /* put the first buffer into the first IOCBq */
17691 tot_len = bf_get(lpfc_rcqe_length,
17692 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
17694 first_iocbq->context2 = &seq_dmabuf->dbuf;
17695 first_iocbq->context3 = NULL;
17696 first_iocbq->iocb.ulpBdeCount = 1;
17697 if (tot_len > LPFC_DATA_BUF_SIZE)
17698 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
17699 LPFC_DATA_BUF_SIZE;
17701 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize = tot_len;
17703 first_iocbq->iocb.un.rcvels.remoteID = sid;
17705 first_iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
17707 iocbq = first_iocbq;
17709 * Each IOCBq can have two Buffers assigned, so go through the list
17710 * of buffers for this sequence and save two buffers in each IOCBq
17712 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
17714 lpfc_in_buf_free(vport->phba, d_buf);
17717 if (!iocbq->context3) {
17718 iocbq->context3 = d_buf;
17719 iocbq->iocb.ulpBdeCount++;
17720 /* We need to get the size out of the right CQE */
17721 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
17722 len = bf_get(lpfc_rcqe_length,
17723 &hbq_buf->cq_event.cqe.rcqe_cmpl);
17724 pbde = (struct ulp_bde64 *)
17725 &iocbq->iocb.unsli3.sli3Words[4];
17726 if (len > LPFC_DATA_BUF_SIZE)
17727 pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
17729 pbde->tus.f.bdeSize = len;
17731 iocbq->iocb.unsli3.rcvsli3.acc_len += len;
17734 iocbq = lpfc_sli_get_iocbq(vport->phba);
17737 first_iocbq->iocb.ulpStatus =
17738 IOSTAT_FCP_RSP_ERROR;
17739 first_iocbq->iocb.un.ulpWord[4] =
17740 IOERR_NO_RESOURCES;
17742 lpfc_in_buf_free(vport->phba, d_buf);
17745 /* We need to get the size out of the right CQE */
17746 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
17747 len = bf_get(lpfc_rcqe_length,
17748 &hbq_buf->cq_event.cqe.rcqe_cmpl);
17749 iocbq->context2 = d_buf;
17750 iocbq->context3 = NULL;
17751 iocbq->iocb.ulpBdeCount = 1;
17752 if (len > LPFC_DATA_BUF_SIZE)
17753 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
17754 LPFC_DATA_BUF_SIZE;
17756 iocbq->iocb.un.cont64[0].tus.f.bdeSize = len;
17759 iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
17761 iocbq->iocb.un.rcvels.remoteID = sid;
17762 list_add_tail(&iocbq->list, &first_iocbq->list);
17765 return first_iocbq;
17769 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
17770 struct hbq_dmabuf *seq_dmabuf)
17772 struct fc_frame_header *fc_hdr;
17773 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
17774 struct lpfc_hba *phba = vport->phba;
17776 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
17777 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
17779 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17780 "2707 Ring %d handler: Failed to allocate "
17781 "iocb Rctl x%x Type x%x received\n",
17783 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
17786 if (!lpfc_complete_unsol_iocb(phba,
17787 phba->sli4_hba.els_wq->pring,
17788 iocbq, fc_hdr->fh_r_ctl,
17790 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17791 "2540 Ring %d handler: unexpected Rctl "
17792 "x%x Type x%x received\n",
17794 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
17796 /* Free iocb created in lpfc_prep_seq */
17797 list_for_each_entry_safe(curr_iocb, next_iocb,
17798 &iocbq->list, list) {
17799 list_del_init(&curr_iocb->list);
17800 lpfc_sli_release_iocbq(phba, curr_iocb);
17802 lpfc_sli_release_iocbq(phba, iocbq);
17806 lpfc_sli4_mds_loopback_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
17807 struct lpfc_iocbq *rspiocb)
17809 struct lpfc_dmabuf *pcmd = cmdiocb->context2;
17811 if (pcmd && pcmd->virt)
17812 dma_pool_free(phba->lpfc_drb_pool, pcmd->virt, pcmd->phys);
17814 lpfc_sli_release_iocbq(phba, cmdiocb);
17815 lpfc_drain_txq(phba);
17819 lpfc_sli4_handle_mds_loopback(struct lpfc_vport *vport,
17820 struct hbq_dmabuf *dmabuf)
17822 struct fc_frame_header *fc_hdr;
17823 struct lpfc_hba *phba = vport->phba;
17824 struct lpfc_iocbq *iocbq = NULL;
17825 union lpfc_wqe *wqe;
17826 struct lpfc_dmabuf *pcmd = NULL;
17827 uint32_t frame_len;
17829 unsigned long iflags;
17831 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
17832 frame_len = bf_get(lpfc_rcqe_length, &dmabuf->cq_event.cqe.rcqe_cmpl);
17834 /* Send the received frame back */
17835 iocbq = lpfc_sli_get_iocbq(phba);
17837 /* Queue cq event and wakeup worker thread to process it */
17838 spin_lock_irqsave(&phba->hbalock, iflags);
17839 list_add_tail(&dmabuf->cq_event.list,
17840 &phba->sli4_hba.sp_queue_event);
17841 phba->hba_flag |= HBA_SP_QUEUE_EVT;
17842 spin_unlock_irqrestore(&phba->hbalock, iflags);
17843 lpfc_worker_wake_up(phba);
17847 /* Allocate buffer for command payload */
17848 pcmd = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
17850 pcmd->virt = dma_pool_alloc(phba->lpfc_drb_pool, GFP_KERNEL,
17852 if (!pcmd || !pcmd->virt)
17855 INIT_LIST_HEAD(&pcmd->list);
17857 /* copyin the payload */
17858 memcpy(pcmd->virt, dmabuf->dbuf.virt, frame_len);
17860 /* fill in BDE's for command */
17861 iocbq->iocb.un.xseq64.bdl.addrHigh = putPaddrHigh(pcmd->phys);
17862 iocbq->iocb.un.xseq64.bdl.addrLow = putPaddrLow(pcmd->phys);
17863 iocbq->iocb.un.xseq64.bdl.bdeFlags = BUFF_TYPE_BDE_64;
17864 iocbq->iocb.un.xseq64.bdl.bdeSize = frame_len;
17866 iocbq->context2 = pcmd;
17867 iocbq->vport = vport;
17868 iocbq->iocb_flag &= ~LPFC_FIP_ELS_ID_MASK;
17869 iocbq->iocb_flag |= LPFC_USE_FCPWQIDX;
17872 * Setup rest of the iocb as though it were a WQE
17873 * Build the SEND_FRAME WQE
17875 wqe = (union lpfc_wqe *)&iocbq->iocb;
17877 wqe->send_frame.frame_len = frame_len;
17878 wqe->send_frame.fc_hdr_wd0 = be32_to_cpu(*((uint32_t *)fc_hdr));
17879 wqe->send_frame.fc_hdr_wd1 = be32_to_cpu(*((uint32_t *)fc_hdr + 1));
17880 wqe->send_frame.fc_hdr_wd2 = be32_to_cpu(*((uint32_t *)fc_hdr + 2));
17881 wqe->send_frame.fc_hdr_wd3 = be32_to_cpu(*((uint32_t *)fc_hdr + 3));
17882 wqe->send_frame.fc_hdr_wd4 = be32_to_cpu(*((uint32_t *)fc_hdr + 4));
17883 wqe->send_frame.fc_hdr_wd5 = be32_to_cpu(*((uint32_t *)fc_hdr + 5));
17885 iocbq->iocb.ulpCommand = CMD_SEND_FRAME;
17886 iocbq->iocb.ulpLe = 1;
17887 iocbq->iocb_cmpl = lpfc_sli4_mds_loopback_cmpl;
17888 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocbq, 0);
17889 if (rc == IOCB_ERROR)
17892 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17896 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
17897 "2023 Unable to process MDS loopback frame\n");
17898 if (pcmd && pcmd->virt)
17899 dma_pool_free(phba->lpfc_drb_pool, pcmd->virt, pcmd->phys);
17902 lpfc_sli_release_iocbq(phba, iocbq);
17903 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17907 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
17908 * @phba: Pointer to HBA context object.
17910 * This function is called with no lock held. This function processes all
17911 * the received buffers and gives it to upper layers when a received buffer
17912 * indicates that it is the final frame in the sequence. The interrupt
17913 * service routine processes received buffers at interrupt contexts.
17914 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
17915 * appropriate receive function when the final frame in a sequence is received.
17918 lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
17919 struct hbq_dmabuf *dmabuf)
17921 struct hbq_dmabuf *seq_dmabuf;
17922 struct fc_frame_header *fc_hdr;
17923 struct lpfc_vport *vport;
17927 /* Process each received buffer */
17928 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
17930 if (fc_hdr->fh_r_ctl == FC_RCTL_MDS_DIAGS ||
17931 fc_hdr->fh_r_ctl == FC_RCTL_DD_UNSOL_DATA) {
17932 vport = phba->pport;
17933 /* Handle MDS Loopback frames */
17934 lpfc_sli4_handle_mds_loopback(vport, dmabuf);
17938 /* check to see if this a valid type of frame */
17939 if (lpfc_fc_frame_check(phba, fc_hdr)) {
17940 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17944 if ((bf_get(lpfc_cqe_code,
17945 &dmabuf->cq_event.cqe.rcqe_cmpl) == CQE_CODE_RECEIVE_V1))
17946 fcfi = bf_get(lpfc_rcqe_fcf_id_v1,
17947 &dmabuf->cq_event.cqe.rcqe_cmpl);
17949 fcfi = bf_get(lpfc_rcqe_fcf_id,
17950 &dmabuf->cq_event.cqe.rcqe_cmpl);
17952 /* d_id this frame is directed to */
17953 did = sli4_did_from_fc_hdr(fc_hdr);
17955 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi, did);
17957 /* throw out the frame */
17958 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17962 /* vport is registered unless we rcv a FLOGI directed to Fabric_DID */
17963 if (!(vport->vpi_state & LPFC_VPI_REGISTERED) &&
17964 (did != Fabric_DID)) {
17966 * Throw out the frame if we are not pt2pt.
17967 * The pt2pt protocol allows for discovery frames
17968 * to be received without a registered VPI.
17970 if (!(vport->fc_flag & FC_PT2PT) ||
17971 (phba->link_state == LPFC_HBA_READY)) {
17972 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17977 /* Handle the basic abort sequence (BA_ABTS) event */
17978 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
17979 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
17983 /* Link this frame */
17984 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
17986 /* unable to add frame to vport - throw it out */
17987 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17990 /* If not last frame in sequence continue processing frames. */
17991 if (!lpfc_seq_complete(seq_dmabuf))
17994 /* Send the complete sequence to the upper layer protocol */
17995 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
17999 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
18000 * @phba: pointer to lpfc hba data structure.
18002 * This routine is invoked to post rpi header templates to the
18003 * HBA consistent with the SLI-4 interface spec. This routine
18004 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
18005 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
18007 * This routine does not require any locks. It's usage is expected
18008 * to be driver load or reset recovery when the driver is
18013 * -EIO - The mailbox failed to complete successfully.
18014 * When this error occurs, the driver is not guaranteed
18015 * to have any rpi regions posted to the device and
18016 * must either attempt to repost the regions or take a
18020 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
18022 struct lpfc_rpi_hdr *rpi_page;
18026 /* SLI4 ports that support extents do not require RPI headers. */
18027 if (!phba->sli4_hba.rpi_hdrs_in_use)
18029 if (phba->sli4_hba.extents_in_use)
18032 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
18034 * Assign the rpi headers a physical rpi only if the driver
18035 * has not initialized those resources. A port reset only
18036 * needs the headers posted.
18038 if (bf_get(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags) !=
18040 rpi_page->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
18042 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
18043 if (rc != MBX_SUCCESS) {
18044 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18045 "2008 Error %d posting all rpi "
18053 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags,
18054 LPFC_RPI_RSRC_RDY);
18059 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
18060 * @phba: pointer to lpfc hba data structure.
18061 * @rpi_page: pointer to the rpi memory region.
18063 * This routine is invoked to post a single rpi header to the
18064 * HBA consistent with the SLI-4 interface spec. This memory region
18065 * maps up to 64 rpi context regions.
18069 * -ENOMEM - No available memory
18070 * -EIO - The mailbox failed to complete successfully.
18073 lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
18075 LPFC_MBOXQ_t *mboxq;
18076 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
18078 uint32_t shdr_status, shdr_add_status;
18079 union lpfc_sli4_cfg_shdr *shdr;
18081 /* SLI4 ports that support extents do not require RPI headers. */
18082 if (!phba->sli4_hba.rpi_hdrs_in_use)
18084 if (phba->sli4_hba.extents_in_use)
18087 /* The port is notified of the header region via a mailbox command. */
18088 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18090 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18091 "2001 Unable to allocate memory for issuing "
18092 "SLI_CONFIG_SPECIAL mailbox command\n");
18096 /* Post all rpi memory regions to the port. */
18097 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
18098 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
18099 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
18100 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
18101 sizeof(struct lpfc_sli4_cfg_mhdr),
18102 LPFC_SLI4_MBX_EMBED);
18105 /* Post the physical rpi to the port for this rpi header. */
18106 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
18107 rpi_page->start_rpi);
18108 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
18109 hdr_tmpl, rpi_page->page_count);
18111 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
18112 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
18113 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
18114 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
18115 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
18116 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
18117 if (rc != MBX_TIMEOUT)
18118 mempool_free(mboxq, phba->mbox_mem_pool);
18119 if (shdr_status || shdr_add_status || rc) {
18120 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18121 "2514 POST_RPI_HDR mailbox failed with "
18122 "status x%x add_status x%x, mbx status x%x\n",
18123 shdr_status, shdr_add_status, rc);
18127 * The next_rpi stores the next logical module-64 rpi value used
18128 * to post physical rpis in subsequent rpi postings.
18130 spin_lock_irq(&phba->hbalock);
18131 phba->sli4_hba.next_rpi = rpi_page->next_rpi;
18132 spin_unlock_irq(&phba->hbalock);
18138 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
18139 * @phba: pointer to lpfc hba data structure.
18141 * This routine is invoked to post rpi header templates to the
18142 * HBA consistent with the SLI-4 interface spec. This routine
18143 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
18144 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
18147 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
18148 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
18151 lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
18154 uint16_t max_rpi, rpi_limit;
18155 uint16_t rpi_remaining, lrpi = 0;
18156 struct lpfc_rpi_hdr *rpi_hdr;
18157 unsigned long iflag;
18160 * Fetch the next logical rpi. Because this index is logical,
18161 * the driver starts at 0 each time.
18163 spin_lock_irqsave(&phba->hbalock, iflag);
18164 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
18165 rpi_limit = phba->sli4_hba.next_rpi;
18167 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, 0);
18168 if (rpi >= rpi_limit)
18169 rpi = LPFC_RPI_ALLOC_ERROR;
18171 set_bit(rpi, phba->sli4_hba.rpi_bmask);
18172 phba->sli4_hba.max_cfg_param.rpi_used++;
18173 phba->sli4_hba.rpi_count++;
18175 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
18176 "0001 rpi:%x max:%x lim:%x\n",
18177 (int) rpi, max_rpi, rpi_limit);
18180 * Don't try to allocate more rpi header regions if the device limit
18181 * has been exhausted.
18183 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
18184 (phba->sli4_hba.rpi_count >= max_rpi)) {
18185 spin_unlock_irqrestore(&phba->hbalock, iflag);
18190 * RPI header postings are not required for SLI4 ports capable of
18193 if (!phba->sli4_hba.rpi_hdrs_in_use) {
18194 spin_unlock_irqrestore(&phba->hbalock, iflag);
18199 * If the driver is running low on rpi resources, allocate another
18200 * page now. Note that the next_rpi value is used because
18201 * it represents how many are actually in use whereas max_rpi notes
18202 * how many are supported max by the device.
18204 rpi_remaining = phba->sli4_hba.next_rpi - phba->sli4_hba.rpi_count;
18205 spin_unlock_irqrestore(&phba->hbalock, iflag);
18206 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
18207 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
18209 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18210 "2002 Error Could not grow rpi "
18213 lrpi = rpi_hdr->start_rpi;
18214 rpi_hdr->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
18215 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
18223 * lpfc_sli4_free_rpi - Release an rpi for reuse.
18224 * @phba: pointer to lpfc hba data structure.
18226 * This routine is invoked to release an rpi to the pool of
18227 * available rpis maintained by the driver.
18230 __lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
18232 if (test_and_clear_bit(rpi, phba->sli4_hba.rpi_bmask)) {
18233 phba->sli4_hba.rpi_count--;
18234 phba->sli4_hba.max_cfg_param.rpi_used--;
18236 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
18237 "2016 rpi %x not inuse\n",
18243 * lpfc_sli4_free_rpi - Release an rpi for reuse.
18244 * @phba: pointer to lpfc hba data structure.
18246 * This routine is invoked to release an rpi to the pool of
18247 * available rpis maintained by the driver.
18250 lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
18252 spin_lock_irq(&phba->hbalock);
18253 __lpfc_sli4_free_rpi(phba, rpi);
18254 spin_unlock_irq(&phba->hbalock);
18258 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
18259 * @phba: pointer to lpfc hba data structure.
18261 * This routine is invoked to remove the memory region that
18262 * provided rpi via a bitmask.
18265 lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
18267 kfree(phba->sli4_hba.rpi_bmask);
18268 kfree(phba->sli4_hba.rpi_ids);
18269 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
18273 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
18274 * @phba: pointer to lpfc hba data structure.
18276 * This routine is invoked to remove the memory region that
18277 * provided rpi via a bitmask.
18280 lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp,
18281 void (*cmpl)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *arg)
18283 LPFC_MBOXQ_t *mboxq;
18284 struct lpfc_hba *phba = ndlp->phba;
18287 /* The port is notified of the header region via a mailbox command. */
18288 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18292 /* Post all rpi memory regions to the port. */
18293 lpfc_resume_rpi(mboxq, ndlp);
18295 mboxq->mbox_cmpl = cmpl;
18296 mboxq->ctx_buf = arg;
18297 mboxq->ctx_ndlp = ndlp;
18299 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
18300 mboxq->vport = ndlp->vport;
18301 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
18302 if (rc == MBX_NOT_FINISHED) {
18303 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18304 "2010 Resume RPI Mailbox failed "
18305 "status %d, mbxStatus x%x\n", rc,
18306 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
18307 mempool_free(mboxq, phba->mbox_mem_pool);
18314 * lpfc_sli4_init_vpi - Initialize a vpi with the port
18315 * @vport: Pointer to the vport for which the vpi is being initialized
18317 * This routine is invoked to activate a vpi with the port.
18321 * -Evalue otherwise
18324 lpfc_sli4_init_vpi(struct lpfc_vport *vport)
18326 LPFC_MBOXQ_t *mboxq;
18328 int retval = MBX_SUCCESS;
18330 struct lpfc_hba *phba = vport->phba;
18331 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18334 lpfc_init_vpi(phba, mboxq, vport->vpi);
18335 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
18336 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
18337 if (rc != MBX_SUCCESS) {
18338 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
18339 "2022 INIT VPI Mailbox failed "
18340 "status %d, mbxStatus x%x\n", rc,
18341 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
18344 if (rc != MBX_TIMEOUT)
18345 mempool_free(mboxq, vport->phba->mbox_mem_pool);
18351 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
18352 * @phba: pointer to lpfc hba data structure.
18353 * @mboxq: Pointer to mailbox object.
18355 * This routine is invoked to manually add a single FCF record. The caller
18356 * must pass a completely initialized FCF_Record. This routine takes
18357 * care of the nonembedded mailbox operations.
18360 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
18363 union lpfc_sli4_cfg_shdr *shdr;
18364 uint32_t shdr_status, shdr_add_status;
18366 virt_addr = mboxq->sge_array->addr[0];
18367 /* The IOCTL status is embedded in the mailbox subheader. */
18368 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
18369 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
18370 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
18372 if ((shdr_status || shdr_add_status) &&
18373 (shdr_status != STATUS_FCF_IN_USE))
18374 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18375 "2558 ADD_FCF_RECORD mailbox failed with "
18376 "status x%x add_status x%x\n",
18377 shdr_status, shdr_add_status);
18379 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18383 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
18384 * @phba: pointer to lpfc hba data structure.
18385 * @fcf_record: pointer to the initialized fcf record to add.
18387 * This routine is invoked to manually add a single FCF record. The caller
18388 * must pass a completely initialized FCF_Record. This routine takes
18389 * care of the nonembedded mailbox operations.
18392 lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
18395 LPFC_MBOXQ_t *mboxq;
18398 struct lpfc_mbx_sge sge;
18399 uint32_t alloc_len, req_len;
18402 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18404 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18405 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
18409 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
18412 /* Allocate DMA memory and set up the non-embedded mailbox command */
18413 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
18414 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
18415 req_len, LPFC_SLI4_MBX_NEMBED);
18416 if (alloc_len < req_len) {
18417 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18418 "2523 Allocated DMA memory size (x%x) is "
18419 "less than the requested DMA memory "
18420 "size (x%x)\n", alloc_len, req_len);
18421 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18426 * Get the first SGE entry from the non-embedded DMA memory. This
18427 * routine only uses a single SGE.
18429 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
18430 virt_addr = mboxq->sge_array->addr[0];
18432 * Configure the FCF record for FCFI 0. This is the driver's
18433 * hardcoded default and gets used in nonFIP mode.
18435 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
18436 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
18437 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
18440 * Copy the fcf_index and the FCF Record Data. The data starts after
18441 * the FCoE header plus word10. The data copy needs to be endian
18444 bytep += sizeof(uint32_t);
18445 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
18446 mboxq->vport = phba->pport;
18447 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
18448 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
18449 if (rc == MBX_NOT_FINISHED) {
18450 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18451 "2515 ADD_FCF_RECORD mailbox failed with "
18452 "status 0x%x\n", rc);
18453 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18462 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
18463 * @phba: pointer to lpfc hba data structure.
18464 * @fcf_record: pointer to the fcf record to write the default data.
18465 * @fcf_index: FCF table entry index.
18467 * This routine is invoked to build the driver's default FCF record. The
18468 * values used are hardcoded. This routine handles memory initialization.
18472 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
18473 struct fcf_record *fcf_record,
18474 uint16_t fcf_index)
18476 memset(fcf_record, 0, sizeof(struct fcf_record));
18477 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
18478 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
18479 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
18480 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
18481 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
18482 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
18483 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
18484 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
18485 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
18486 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
18487 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
18488 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
18489 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
18490 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
18491 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
18492 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
18493 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
18494 /* Set the VLAN bit map */
18495 if (phba->valid_vlan) {
18496 fcf_record->vlan_bitmap[phba->vlan_id / 8]
18497 = 1 << (phba->vlan_id % 8);
18502 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
18503 * @phba: pointer to lpfc hba data structure.
18504 * @fcf_index: FCF table entry offset.
18506 * This routine is invoked to scan the entire FCF table by reading FCF
18507 * record and processing it one at a time starting from the @fcf_index
18508 * for initial FCF discovery or fast FCF failover rediscovery.
18510 * Return 0 if the mailbox command is submitted successfully, none 0
18514 lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
18517 LPFC_MBOXQ_t *mboxq;
18519 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
18520 phba->fcoe_cvl_eventtag_attn = phba->fcoe_cvl_eventtag;
18521 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18523 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18524 "2000 Failed to allocate mbox for "
18527 goto fail_fcf_scan;
18529 /* Construct the read FCF record mailbox command */
18530 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
18533 goto fail_fcf_scan;
18535 /* Issue the mailbox command asynchronously */
18536 mboxq->vport = phba->pport;
18537 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
18539 spin_lock_irq(&phba->hbalock);
18540 phba->hba_flag |= FCF_TS_INPROG;
18541 spin_unlock_irq(&phba->hbalock);
18543 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
18544 if (rc == MBX_NOT_FINISHED)
18547 /* Reset eligible FCF count for new scan */
18548 if (fcf_index == LPFC_FCOE_FCF_GET_FIRST)
18549 phba->fcf.eligible_fcf_cnt = 0;
18555 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18556 /* FCF scan failed, clear FCF_TS_INPROG flag */
18557 spin_lock_irq(&phba->hbalock);
18558 phba->hba_flag &= ~FCF_TS_INPROG;
18559 spin_unlock_irq(&phba->hbalock);
18565 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
18566 * @phba: pointer to lpfc hba data structure.
18567 * @fcf_index: FCF table entry offset.
18569 * This routine is invoked to read an FCF record indicated by @fcf_index
18570 * and to use it for FLOGI roundrobin FCF failover.
18572 * Return 0 if the mailbox command is submitted successfully, none 0
18576 lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
18579 LPFC_MBOXQ_t *mboxq;
18581 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18583 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
18584 "2763 Failed to allocate mbox for "
18587 goto fail_fcf_read;
18589 /* Construct the read FCF record mailbox command */
18590 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
18593 goto fail_fcf_read;
18595 /* Issue the mailbox command asynchronously */
18596 mboxq->vport = phba->pport;
18597 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
18598 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
18599 if (rc == MBX_NOT_FINISHED)
18605 if (error && mboxq)
18606 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18611 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
18612 * @phba: pointer to lpfc hba data structure.
18613 * @fcf_index: FCF table entry offset.
18615 * This routine is invoked to read an FCF record indicated by @fcf_index to
18616 * determine whether it's eligible for FLOGI roundrobin failover list.
18618 * Return 0 if the mailbox command is submitted successfully, none 0
18622 lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
18625 LPFC_MBOXQ_t *mboxq;
18627 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18629 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
18630 "2758 Failed to allocate mbox for "
18633 goto fail_fcf_read;
18635 /* Construct the read FCF record mailbox command */
18636 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
18639 goto fail_fcf_read;
18641 /* Issue the mailbox command asynchronously */
18642 mboxq->vport = phba->pport;
18643 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
18644 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
18645 if (rc == MBX_NOT_FINISHED)
18651 if (error && mboxq)
18652 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18657 * lpfc_check_next_fcf_pri_level
18658 * phba pointer to the lpfc_hba struct for this port.
18659 * This routine is called from the lpfc_sli4_fcf_rr_next_index_get
18660 * routine when the rr_bmask is empty. The FCF indecies are put into the
18661 * rr_bmask based on their priority level. Starting from the highest priority
18662 * to the lowest. The most likely FCF candidate will be in the highest
18663 * priority group. When this routine is called it searches the fcf_pri list for
18664 * next lowest priority group and repopulates the rr_bmask with only those
18667 * 1=success 0=failure
18670 lpfc_check_next_fcf_pri_level(struct lpfc_hba *phba)
18672 uint16_t next_fcf_pri;
18673 uint16_t last_index;
18674 struct lpfc_fcf_pri *fcf_pri;
18678 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
18679 LPFC_SLI4_FCF_TBL_INDX_MAX);
18680 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
18681 "3060 Last IDX %d\n", last_index);
18683 /* Verify the priority list has 2 or more entries */
18684 spin_lock_irq(&phba->hbalock);
18685 if (list_empty(&phba->fcf.fcf_pri_list) ||
18686 list_is_singular(&phba->fcf.fcf_pri_list)) {
18687 spin_unlock_irq(&phba->hbalock);
18688 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
18689 "3061 Last IDX %d\n", last_index);
18690 return 0; /* Empty rr list */
18692 spin_unlock_irq(&phba->hbalock);
18696 * Clear the rr_bmask and set all of the bits that are at this
18699 memset(phba->fcf.fcf_rr_bmask, 0,
18700 sizeof(*phba->fcf.fcf_rr_bmask));
18701 spin_lock_irq(&phba->hbalock);
18702 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
18703 if (fcf_pri->fcf_rec.flag & LPFC_FCF_FLOGI_FAILED)
18706 * the 1st priority that has not FLOGI failed
18707 * will be the highest.
18710 next_fcf_pri = fcf_pri->fcf_rec.priority;
18711 spin_unlock_irq(&phba->hbalock);
18712 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
18713 rc = lpfc_sli4_fcf_rr_index_set(phba,
18714 fcf_pri->fcf_rec.fcf_index);
18718 spin_lock_irq(&phba->hbalock);
18721 * if next_fcf_pri was not set above and the list is not empty then
18722 * we have failed flogis on all of them. So reset flogi failed
18723 * and start at the beginning.
18725 if (!next_fcf_pri && !list_empty(&phba->fcf.fcf_pri_list)) {
18726 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
18727 fcf_pri->fcf_rec.flag &= ~LPFC_FCF_FLOGI_FAILED;
18729 * the 1st priority that has not FLOGI failed
18730 * will be the highest.
18733 next_fcf_pri = fcf_pri->fcf_rec.priority;
18734 spin_unlock_irq(&phba->hbalock);
18735 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
18736 rc = lpfc_sli4_fcf_rr_index_set(phba,
18737 fcf_pri->fcf_rec.fcf_index);
18741 spin_lock_irq(&phba->hbalock);
18745 spin_unlock_irq(&phba->hbalock);
18750 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
18751 * @phba: pointer to lpfc hba data structure.
18753 * This routine is to get the next eligible FCF record index in a round
18754 * robin fashion. If the next eligible FCF record index equals to the
18755 * initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
18756 * shall be returned, otherwise, the next eligible FCF record's index
18757 * shall be returned.
18760 lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
18762 uint16_t next_fcf_index;
18765 /* Search start from next bit of currently registered FCF index */
18766 next_fcf_index = phba->fcf.current_rec.fcf_indx;
18769 /* Determine the next fcf index to check */
18770 next_fcf_index = (next_fcf_index + 1) % LPFC_SLI4_FCF_TBL_INDX_MAX;
18771 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
18772 LPFC_SLI4_FCF_TBL_INDX_MAX,
18775 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
18776 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
18778 * If we have wrapped then we need to clear the bits that
18779 * have been tested so that we can detect when we should
18780 * change the priority level.
18782 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
18783 LPFC_SLI4_FCF_TBL_INDX_MAX, 0);
18787 /* Check roundrobin failover list empty condition */
18788 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX ||
18789 next_fcf_index == phba->fcf.current_rec.fcf_indx) {
18791 * If next fcf index is not found check if there are lower
18792 * Priority level fcf's in the fcf_priority list.
18793 * Set up the rr_bmask with all of the avaiable fcf bits
18794 * at that level and continue the selection process.
18796 if (lpfc_check_next_fcf_pri_level(phba))
18797 goto initial_priority;
18798 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
18799 "2844 No roundrobin failover FCF available\n");
18801 return LPFC_FCOE_FCF_NEXT_NONE;
18804 if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX &&
18805 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag &
18806 LPFC_FCF_FLOGI_FAILED) {
18807 if (list_is_singular(&phba->fcf.fcf_pri_list))
18808 return LPFC_FCOE_FCF_NEXT_NONE;
18810 goto next_priority;
18813 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
18814 "2845 Get next roundrobin failover FCF (x%x)\n",
18817 return next_fcf_index;
18821 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
18822 * @phba: pointer to lpfc hba data structure.
18824 * This routine sets the FCF record index in to the eligible bmask for
18825 * roundrobin failover search. It checks to make sure that the index
18826 * does not go beyond the range of the driver allocated bmask dimension
18827 * before setting the bit.
18829 * Returns 0 if the index bit successfully set, otherwise, it returns
18833 lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
18835 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
18836 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
18837 "2610 FCF (x%x) reached driver's book "
18838 "keeping dimension:x%x\n",
18839 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
18842 /* Set the eligible FCF record index bmask */
18843 set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
18845 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
18846 "2790 Set FCF (x%x) to roundrobin FCF failover "
18847 "bmask\n", fcf_index);
18853 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
18854 * @phba: pointer to lpfc hba data structure.
18856 * This routine clears the FCF record index from the eligible bmask for
18857 * roundrobin failover search. It checks to make sure that the index
18858 * does not go beyond the range of the driver allocated bmask dimension
18859 * before clearing the bit.
18862 lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
18864 struct lpfc_fcf_pri *fcf_pri, *fcf_pri_next;
18865 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
18866 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
18867 "2762 FCF (x%x) reached driver's book "
18868 "keeping dimension:x%x\n",
18869 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
18872 /* Clear the eligible FCF record index bmask */
18873 spin_lock_irq(&phba->hbalock);
18874 list_for_each_entry_safe(fcf_pri, fcf_pri_next, &phba->fcf.fcf_pri_list,
18876 if (fcf_pri->fcf_rec.fcf_index == fcf_index) {
18877 list_del_init(&fcf_pri->list);
18881 spin_unlock_irq(&phba->hbalock);
18882 clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
18884 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
18885 "2791 Clear FCF (x%x) from roundrobin failover "
18886 "bmask\n", fcf_index);
18890 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
18891 * @phba: pointer to lpfc hba data structure.
18893 * This routine is the completion routine for the rediscover FCF table mailbox
18894 * command. If the mailbox command returned failure, it will try to stop the
18895 * FCF rediscover wait timer.
18898 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
18900 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
18901 uint32_t shdr_status, shdr_add_status;
18903 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
18905 shdr_status = bf_get(lpfc_mbox_hdr_status,
18906 &redisc_fcf->header.cfg_shdr.response);
18907 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
18908 &redisc_fcf->header.cfg_shdr.response);
18909 if (shdr_status || shdr_add_status) {
18910 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
18911 "2746 Requesting for FCF rediscovery failed "
18912 "status x%x add_status x%x\n",
18913 shdr_status, shdr_add_status);
18914 if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
18915 spin_lock_irq(&phba->hbalock);
18916 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
18917 spin_unlock_irq(&phba->hbalock);
18919 * CVL event triggered FCF rediscover request failed,
18920 * last resort to re-try current registered FCF entry.
18922 lpfc_retry_pport_discovery(phba);
18924 spin_lock_irq(&phba->hbalock);
18925 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
18926 spin_unlock_irq(&phba->hbalock);
18928 * DEAD FCF event triggered FCF rediscover request
18929 * failed, last resort to fail over as a link down
18930 * to FCF registration.
18932 lpfc_sli4_fcf_dead_failthrough(phba);
18935 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
18936 "2775 Start FCF rediscover quiescent timer\n");
18938 * Start FCF rediscovery wait timer for pending FCF
18939 * before rescan FCF record table.
18941 lpfc_fcf_redisc_wait_start_timer(phba);
18944 mempool_free(mbox, phba->mbox_mem_pool);
18948 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
18949 * @phba: pointer to lpfc hba data structure.
18951 * This routine is invoked to request for rediscovery of the entire FCF table
18955 lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
18957 LPFC_MBOXQ_t *mbox;
18958 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
18961 /* Cancel retry delay timers to all vports before FCF rediscover */
18962 lpfc_cancel_all_vport_retry_delay_timer(phba);
18964 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18966 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18967 "2745 Failed to allocate mbox for "
18968 "requesting FCF rediscover.\n");
18972 length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
18973 sizeof(struct lpfc_sli4_cfg_mhdr));
18974 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
18975 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
18976 length, LPFC_SLI4_MBX_EMBED);
18978 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
18979 /* Set count to 0 for invalidating the entire FCF database */
18980 bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
18982 /* Issue the mailbox command asynchronously */
18983 mbox->vport = phba->pport;
18984 mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
18985 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
18987 if (rc == MBX_NOT_FINISHED) {
18988 mempool_free(mbox, phba->mbox_mem_pool);
18995 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
18996 * @phba: pointer to lpfc hba data structure.
18998 * This function is the failover routine as a last resort to the FCF DEAD
18999 * event when driver failed to perform fast FCF failover.
19002 lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
19004 uint32_t link_state;
19007 * Last resort as FCF DEAD event failover will treat this as
19008 * a link down, but save the link state because we don't want
19009 * it to be changed to Link Down unless it is already down.
19011 link_state = phba->link_state;
19012 lpfc_linkdown(phba);
19013 phba->link_state = link_state;
19015 /* Unregister FCF if no devices connected to it */
19016 lpfc_unregister_unused_fcf(phba);
19020 * lpfc_sli_get_config_region23 - Get sli3 port region 23 data.
19021 * @phba: pointer to lpfc hba data structure.
19022 * @rgn23_data: pointer to configure region 23 data.
19024 * This function gets SLI3 port configure region 23 data through memory dump
19025 * mailbox command. When it successfully retrieves data, the size of the data
19026 * will be returned, otherwise, 0 will be returned.
19029 lpfc_sli_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
19031 LPFC_MBOXQ_t *pmb = NULL;
19033 uint32_t offset = 0;
19039 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
19041 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
19042 "2600 failed to allocate mailbox memory\n");
19048 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
19049 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
19051 if (rc != MBX_SUCCESS) {
19052 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
19053 "2601 failed to read config "
19054 "region 23, rc 0x%x Status 0x%x\n",
19055 rc, mb->mbxStatus);
19056 mb->un.varDmp.word_cnt = 0;
19059 * dump mem may return a zero when finished or we got a
19060 * mailbox error, either way we are done.
19062 if (mb->un.varDmp.word_cnt == 0)
19064 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
19065 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
19067 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
19068 rgn23_data + offset,
19069 mb->un.varDmp.word_cnt);
19070 offset += mb->un.varDmp.word_cnt;
19071 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
19073 mempool_free(pmb, phba->mbox_mem_pool);
19078 * lpfc_sli4_get_config_region23 - Get sli4 port region 23 data.
19079 * @phba: pointer to lpfc hba data structure.
19080 * @rgn23_data: pointer to configure region 23 data.
19082 * This function gets SLI4 port configure region 23 data through memory dump
19083 * mailbox command. When it successfully retrieves data, the size of the data
19084 * will be returned, otherwise, 0 will be returned.
19087 lpfc_sli4_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
19089 LPFC_MBOXQ_t *mboxq = NULL;
19090 struct lpfc_dmabuf *mp = NULL;
19091 struct lpfc_mqe *mqe;
19092 uint32_t data_length = 0;
19098 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
19100 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
19101 "3105 failed to allocate mailbox memory\n");
19105 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq))
19107 mqe = &mboxq->u.mqe;
19108 mp = (struct lpfc_dmabuf *)mboxq->ctx_buf;
19109 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
19112 data_length = mqe->un.mb_words[5];
19113 if (data_length == 0)
19115 if (data_length > DMP_RGN23_SIZE) {
19119 lpfc_sli_pcimem_bcopy((char *)mp->virt, rgn23_data, data_length);
19121 mempool_free(mboxq, phba->mbox_mem_pool);
19123 lpfc_mbuf_free(phba, mp->virt, mp->phys);
19126 return data_length;
19130 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
19131 * @phba: pointer to lpfc hba data structure.
19133 * This function read region 23 and parse TLV for port status to
19134 * decide if the user disaled the port. If the TLV indicates the
19135 * port is disabled, the hba_flag is set accordingly.
19138 lpfc_sli_read_link_ste(struct lpfc_hba *phba)
19140 uint8_t *rgn23_data = NULL;
19141 uint32_t if_type, data_size, sub_tlv_len, tlv_offset;
19142 uint32_t offset = 0;
19144 /* Get adapter Region 23 data */
19145 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
19149 if (phba->sli_rev < LPFC_SLI_REV4)
19150 data_size = lpfc_sli_get_config_region23(phba, rgn23_data);
19152 if_type = bf_get(lpfc_sli_intf_if_type,
19153 &phba->sli4_hba.sli_intf);
19154 if (if_type == LPFC_SLI_INTF_IF_TYPE_0)
19156 data_size = lpfc_sli4_get_config_region23(phba, rgn23_data);
19162 /* Check the region signature first */
19163 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
19164 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
19165 "2619 Config region 23 has bad signature\n");
19170 /* Check the data structure version */
19171 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
19172 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
19173 "2620 Config region 23 has bad version\n");
19178 /* Parse TLV entries in the region */
19179 while (offset < data_size) {
19180 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
19183 * If the TLV is not driver specific TLV or driver id is
19184 * not linux driver id, skip the record.
19186 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
19187 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
19188 (rgn23_data[offset + 3] != 0)) {
19189 offset += rgn23_data[offset + 1] * 4 + 4;
19193 /* Driver found a driver specific TLV in the config region */
19194 sub_tlv_len = rgn23_data[offset + 1] * 4;
19199 * Search for configured port state sub-TLV.
19201 while ((offset < data_size) &&
19202 (tlv_offset < sub_tlv_len)) {
19203 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
19208 if (rgn23_data[offset] != PORT_STE_TYPE) {
19209 offset += rgn23_data[offset + 1] * 4 + 4;
19210 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
19214 /* This HBA contains PORT_STE configured */
19215 if (!rgn23_data[offset + 2])
19216 phba->hba_flag |= LINK_DISABLED;
19228 * lpfc_wr_object - write an object to the firmware
19229 * @phba: HBA structure that indicates port to create a queue on.
19230 * @dmabuf_list: list of dmabufs to write to the port.
19231 * @size: the total byte value of the objects to write to the port.
19232 * @offset: the current offset to be used to start the transfer.
19234 * This routine will create a wr_object mailbox command to send to the port.
19235 * the mailbox command will be constructed using the dma buffers described in
19236 * @dmabuf_list to create a list of BDEs. This routine will fill in as many
19237 * BDEs that the imbedded mailbox can support. The @offset variable will be
19238 * used to indicate the starting offset of the transfer and will also return
19239 * the offset after the write object mailbox has completed. @size is used to
19240 * determine the end of the object and whether the eof bit should be set.
19242 * Return 0 is successful and offset will contain the the new offset to use
19243 * for the next write.
19244 * Return negative value for error cases.
19247 lpfc_wr_object(struct lpfc_hba *phba, struct list_head *dmabuf_list,
19248 uint32_t size, uint32_t *offset)
19250 struct lpfc_mbx_wr_object *wr_object;
19251 LPFC_MBOXQ_t *mbox;
19253 uint32_t shdr_status, shdr_add_status, shdr_change_status;
19255 struct lpfc_dmabuf *dmabuf;
19256 uint32_t written = 0;
19257 bool check_change_status = false;
19259 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
19263 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
19264 LPFC_MBOX_OPCODE_WRITE_OBJECT,
19265 sizeof(struct lpfc_mbx_wr_object) -
19266 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
19268 wr_object = (struct lpfc_mbx_wr_object *)&mbox->u.mqe.un.wr_object;
19269 wr_object->u.request.write_offset = *offset;
19270 sprintf((uint8_t *)wr_object->u.request.object_name, "/");
19271 wr_object->u.request.object_name[0] =
19272 cpu_to_le32(wr_object->u.request.object_name[0]);
19273 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 0);
19274 list_for_each_entry(dmabuf, dmabuf_list, list) {
19275 if (i >= LPFC_MBX_WR_CONFIG_MAX_BDE || written >= size)
19277 wr_object->u.request.bde[i].addrLow = putPaddrLow(dmabuf->phys);
19278 wr_object->u.request.bde[i].addrHigh =
19279 putPaddrHigh(dmabuf->phys);
19280 if (written + SLI4_PAGE_SIZE >= size) {
19281 wr_object->u.request.bde[i].tus.f.bdeSize =
19283 written += (size - written);
19284 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 1);
19285 bf_set(lpfc_wr_object_eas, &wr_object->u.request, 1);
19286 check_change_status = true;
19288 wr_object->u.request.bde[i].tus.f.bdeSize =
19290 written += SLI4_PAGE_SIZE;
19294 wr_object->u.request.bde_count = i;
19295 bf_set(lpfc_wr_object_write_length, &wr_object->u.request, written);
19296 if (!phba->sli4_hba.intr_enable)
19297 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
19299 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
19300 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
19302 /* The IOCTL status is embedded in the mailbox subheader. */
19303 shdr_status = bf_get(lpfc_mbox_hdr_status,
19304 &wr_object->header.cfg_shdr.response);
19305 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
19306 &wr_object->header.cfg_shdr.response);
19307 if (check_change_status) {
19308 shdr_change_status = bf_get(lpfc_wr_object_change_status,
19309 &wr_object->u.response);
19310 switch (shdr_change_status) {
19311 case (LPFC_CHANGE_STATUS_PHYS_DEV_RESET):
19312 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
19313 "3198 Firmware write complete: System "
19314 "reboot required to instantiate\n");
19316 case (LPFC_CHANGE_STATUS_FW_RESET):
19317 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
19318 "3199 Firmware write complete: Firmware"
19319 " reset required to instantiate\n");
19321 case (LPFC_CHANGE_STATUS_PORT_MIGRATION):
19322 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
19323 "3200 Firmware write complete: Port "
19324 "Migration or PCI Reset required to "
19327 case (LPFC_CHANGE_STATUS_PCI_RESET):
19328 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
19329 "3201 Firmware write complete: PCI "
19330 "Reset required to instantiate\n");
19336 if (rc != MBX_TIMEOUT)
19337 mempool_free(mbox, phba->mbox_mem_pool);
19338 if (shdr_status || shdr_add_status || rc) {
19339 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
19340 "3025 Write Object mailbox failed with "
19341 "status x%x add_status x%x, mbx status x%x\n",
19342 shdr_status, shdr_add_status, rc);
19344 *offset = shdr_add_status;
19346 *offset += wr_object->u.response.actual_write_length;
19351 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
19352 * @vport: pointer to vport data structure.
19354 * This function iterate through the mailboxq and clean up all REG_LOGIN
19355 * and REG_VPI mailbox commands associated with the vport. This function
19356 * is called when driver want to restart discovery of the vport due to
19357 * a Clear Virtual Link event.
19360 lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
19362 struct lpfc_hba *phba = vport->phba;
19363 LPFC_MBOXQ_t *mb, *nextmb;
19364 struct lpfc_dmabuf *mp;
19365 struct lpfc_nodelist *ndlp;
19366 struct lpfc_nodelist *act_mbx_ndlp = NULL;
19367 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
19368 LIST_HEAD(mbox_cmd_list);
19369 uint8_t restart_loop;
19371 /* Clean up internally queued mailbox commands with the vport */
19372 spin_lock_irq(&phba->hbalock);
19373 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
19374 if (mb->vport != vport)
19377 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
19378 (mb->u.mb.mbxCommand != MBX_REG_VPI))
19381 list_del(&mb->list);
19382 list_add_tail(&mb->list, &mbox_cmd_list);
19384 /* Clean up active mailbox command with the vport */
19385 mb = phba->sli.mbox_active;
19386 if (mb && (mb->vport == vport)) {
19387 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
19388 (mb->u.mb.mbxCommand == MBX_REG_VPI))
19389 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
19390 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
19391 act_mbx_ndlp = (struct lpfc_nodelist *)mb->ctx_ndlp;
19392 /* Put reference count for delayed processing */
19393 act_mbx_ndlp = lpfc_nlp_get(act_mbx_ndlp);
19394 /* Unregister the RPI when mailbox complete */
19395 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
19398 /* Cleanup any mailbox completions which are not yet processed */
19401 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
19403 * If this mailox is already processed or it is
19404 * for another vport ignore it.
19406 if ((mb->vport != vport) ||
19407 (mb->mbox_flag & LPFC_MBX_IMED_UNREG))
19410 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
19411 (mb->u.mb.mbxCommand != MBX_REG_VPI))
19414 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
19415 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
19416 ndlp = (struct lpfc_nodelist *)mb->ctx_ndlp;
19417 /* Unregister the RPI when mailbox complete */
19418 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
19420 spin_unlock_irq(&phba->hbalock);
19421 spin_lock(shost->host_lock);
19422 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
19423 spin_unlock(shost->host_lock);
19424 spin_lock_irq(&phba->hbalock);
19428 } while (restart_loop);
19430 spin_unlock_irq(&phba->hbalock);
19432 /* Release the cleaned-up mailbox commands */
19433 while (!list_empty(&mbox_cmd_list)) {
19434 list_remove_head(&mbox_cmd_list, mb, LPFC_MBOXQ_t, list);
19435 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
19436 mp = (struct lpfc_dmabuf *)(mb->ctx_buf);
19438 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
19441 mb->ctx_buf = NULL;
19442 ndlp = (struct lpfc_nodelist *)mb->ctx_ndlp;
19443 mb->ctx_ndlp = NULL;
19445 spin_lock(shost->host_lock);
19446 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
19447 spin_unlock(shost->host_lock);
19448 lpfc_nlp_put(ndlp);
19451 mempool_free(mb, phba->mbox_mem_pool);
19454 /* Release the ndlp with the cleaned-up active mailbox command */
19455 if (act_mbx_ndlp) {
19456 spin_lock(shost->host_lock);
19457 act_mbx_ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
19458 spin_unlock(shost->host_lock);
19459 lpfc_nlp_put(act_mbx_ndlp);
19464 * lpfc_drain_txq - Drain the txq
19465 * @phba: Pointer to HBA context object.
19467 * This function attempt to submit IOCBs on the txq
19468 * to the adapter. For SLI4 adapters, the txq contains
19469 * ELS IOCBs that have been deferred because the there
19470 * are no SGLs. This congestion can occur with large
19471 * vport counts during node discovery.
19475 lpfc_drain_txq(struct lpfc_hba *phba)
19477 LIST_HEAD(completions);
19478 struct lpfc_sli_ring *pring;
19479 struct lpfc_iocbq *piocbq = NULL;
19480 unsigned long iflags = 0;
19481 char *fail_msg = NULL;
19482 struct lpfc_sglq *sglq;
19483 union lpfc_wqe128 wqe;
19484 uint32_t txq_cnt = 0;
19485 struct lpfc_queue *wq;
19487 if (phba->link_flag & LS_MDS_LOOPBACK) {
19488 /* MDS WQE are posted only to first WQ*/
19489 wq = phba->sli4_hba.hdwq[0].fcp_wq;
19494 wq = phba->sli4_hba.els_wq;
19497 pring = lpfc_phba_elsring(phba);
19500 if (unlikely(!pring) || list_empty(&pring->txq))
19503 spin_lock_irqsave(&pring->ring_lock, iflags);
19504 list_for_each_entry(piocbq, &pring->txq, list) {
19508 if (txq_cnt > pring->txq_max)
19509 pring->txq_max = txq_cnt;
19511 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19513 while (!list_empty(&pring->txq)) {
19514 spin_lock_irqsave(&pring->ring_lock, iflags);
19516 piocbq = lpfc_sli_ringtx_get(phba, pring);
19518 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19519 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
19520 "2823 txq empty and txq_cnt is %d\n ",
19524 sglq = __lpfc_sli_get_els_sglq(phba, piocbq);
19526 __lpfc_sli_ringtx_put(phba, pring, piocbq);
19527 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19532 /* The xri and iocb resources secured,
19533 * attempt to issue request
19535 piocbq->sli4_lxritag = sglq->sli4_lxritag;
19536 piocbq->sli4_xritag = sglq->sli4_xritag;
19537 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocbq, sglq))
19538 fail_msg = "to convert bpl to sgl";
19539 else if (lpfc_sli4_iocb2wqe(phba, piocbq, &wqe))
19540 fail_msg = "to convert iocb to wqe";
19541 else if (lpfc_sli4_wq_put(wq, &wqe))
19542 fail_msg = " - Wq is full";
19544 lpfc_sli_ringtxcmpl_put(phba, pring, piocbq);
19547 /* Failed means we can't issue and need to cancel */
19548 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
19549 "2822 IOCB failed %s iotag 0x%x "
19552 piocbq->iotag, piocbq->sli4_xritag);
19553 list_add_tail(&piocbq->list, &completions);
19555 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19558 /* Cancel all the IOCBs that cannot be issued */
19559 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
19560 IOERR_SLI_ABORTED);
19566 * lpfc_wqe_bpl2sgl - Convert the bpl/bde to a sgl.
19567 * @phba: Pointer to HBA context object.
19568 * @pwqe: Pointer to command WQE.
19569 * @sglq: Pointer to the scatter gather queue object.
19571 * This routine converts the bpl or bde that is in the WQE
19572 * to a sgl list for the sli4 hardware. The physical address
19573 * of the bpl/bde is converted back to a virtual address.
19574 * If the WQE contains a BPL then the list of BDE's is
19575 * converted to sli4_sge's. If the WQE contains a single
19576 * BDE then it is converted to a single sli_sge.
19577 * The WQE is still in cpu endianness so the contents of
19578 * the bpl can be used without byte swapping.
19580 * Returns valid XRI = Success, NO_XRI = Failure.
19583 lpfc_wqe_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeq,
19584 struct lpfc_sglq *sglq)
19586 uint16_t xritag = NO_XRI;
19587 struct ulp_bde64 *bpl = NULL;
19588 struct ulp_bde64 bde;
19589 struct sli4_sge *sgl = NULL;
19590 struct lpfc_dmabuf *dmabuf;
19591 union lpfc_wqe128 *wqe;
19594 uint32_t offset = 0; /* accumulated offset in the sg request list */
19595 int inbound = 0; /* number of sg reply entries inbound from firmware */
19598 if (!pwqeq || !sglq)
19601 sgl = (struct sli4_sge *)sglq->sgl;
19603 pwqeq->iocb.ulpIoTag = pwqeq->iotag;
19605 cmd = bf_get(wqe_cmnd, &wqe->generic.wqe_com);
19606 if (cmd == CMD_XMIT_BLS_RSP64_WQE)
19607 return sglq->sli4_xritag;
19608 numBdes = pwqeq->rsvd2;
19610 /* The addrHigh and addrLow fields within the WQE
19611 * have not been byteswapped yet so there is no
19612 * need to swap them back.
19614 if (pwqeq->context3)
19615 dmabuf = (struct lpfc_dmabuf *)pwqeq->context3;
19619 bpl = (struct ulp_bde64 *)dmabuf->virt;
19623 for (i = 0; i < numBdes; i++) {
19624 /* Should already be byte swapped. */
19625 sgl->addr_hi = bpl->addrHigh;
19626 sgl->addr_lo = bpl->addrLow;
19628 sgl->word2 = le32_to_cpu(sgl->word2);
19629 if ((i+1) == numBdes)
19630 bf_set(lpfc_sli4_sge_last, sgl, 1);
19632 bf_set(lpfc_sli4_sge_last, sgl, 0);
19633 /* swap the size field back to the cpu so we
19634 * can assign it to the sgl.
19636 bde.tus.w = le32_to_cpu(bpl->tus.w);
19637 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
19638 /* The offsets in the sgl need to be accumulated
19639 * separately for the request and reply lists.
19640 * The request is always first, the reply follows.
19643 case CMD_GEN_REQUEST64_WQE:
19644 /* add up the reply sg entries */
19645 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
19647 /* first inbound? reset the offset */
19650 bf_set(lpfc_sli4_sge_offset, sgl, offset);
19651 bf_set(lpfc_sli4_sge_type, sgl,
19652 LPFC_SGE_TYPE_DATA);
19653 offset += bde.tus.f.bdeSize;
19655 case CMD_FCP_TRSP64_WQE:
19656 bf_set(lpfc_sli4_sge_offset, sgl, 0);
19657 bf_set(lpfc_sli4_sge_type, sgl,
19658 LPFC_SGE_TYPE_DATA);
19660 case CMD_FCP_TSEND64_WQE:
19661 case CMD_FCP_TRECEIVE64_WQE:
19662 bf_set(lpfc_sli4_sge_type, sgl,
19663 bpl->tus.f.bdeFlags);
19667 offset += bde.tus.f.bdeSize;
19668 bf_set(lpfc_sli4_sge_offset, sgl, offset);
19671 sgl->word2 = cpu_to_le32(sgl->word2);
19675 } else if (wqe->gen_req.bde.tus.f.bdeFlags == BUFF_TYPE_BDE_64) {
19676 /* The addrHigh and addrLow fields of the BDE have not
19677 * been byteswapped yet so they need to be swapped
19678 * before putting them in the sgl.
19680 sgl->addr_hi = cpu_to_le32(wqe->gen_req.bde.addrHigh);
19681 sgl->addr_lo = cpu_to_le32(wqe->gen_req.bde.addrLow);
19682 sgl->word2 = le32_to_cpu(sgl->word2);
19683 bf_set(lpfc_sli4_sge_last, sgl, 1);
19684 sgl->word2 = cpu_to_le32(sgl->word2);
19685 sgl->sge_len = cpu_to_le32(wqe->gen_req.bde.tus.f.bdeSize);
19687 return sglq->sli4_xritag;
19691 * lpfc_sli4_issue_wqe - Issue an SLI4 Work Queue Entry (WQE)
19692 * @phba: Pointer to HBA context object.
19693 * @ring_number: Base sli ring number
19694 * @pwqe: Pointer to command WQE.
19697 lpfc_sli4_issue_wqe(struct lpfc_hba *phba, struct lpfc_sli4_hdw_queue *qp,
19698 struct lpfc_iocbq *pwqe)
19700 union lpfc_wqe128 *wqe = &pwqe->wqe;
19701 struct lpfc_nvmet_rcv_ctx *ctxp;
19702 struct lpfc_queue *wq;
19703 struct lpfc_sglq *sglq;
19704 struct lpfc_sli_ring *pring;
19705 unsigned long iflags;
19708 /* NVME_LS and NVME_LS ABTS requests. */
19709 if (pwqe->iocb_flag & LPFC_IO_NVME_LS) {
19710 pring = phba->sli4_hba.nvmels_wq->pring;
19711 lpfc_qp_spin_lock_irqsave(&pring->ring_lock, iflags,
19713 sglq = __lpfc_sli_get_els_sglq(phba, pwqe);
19715 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19718 pwqe->sli4_lxritag = sglq->sli4_lxritag;
19719 pwqe->sli4_xritag = sglq->sli4_xritag;
19720 if (lpfc_wqe_bpl2sgl(phba, pwqe, sglq) == NO_XRI) {
19721 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19724 bf_set(wqe_xri_tag, &pwqe->wqe.xmit_bls_rsp.wqe_com,
19725 pwqe->sli4_xritag);
19726 ret = lpfc_sli4_wq_put(phba->sli4_hba.nvmels_wq, wqe);
19728 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19732 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
19733 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19737 /* NVME_FCREQ and NVME_ABTS requests */
19738 if (pwqe->iocb_flag & LPFC_IO_NVME) {
19739 /* Get the IO distribution (hba_wqidx) for WQ assignment. */
19743 bf_set(wqe_cqid, &wqe->generic.wqe_com, qp->nvme_cq_map);
19745 lpfc_qp_spin_lock_irqsave(&pring->ring_lock, iflags,
19747 ret = lpfc_sli4_wq_put(wq, wqe);
19749 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19752 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
19753 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19757 /* NVMET requests */
19758 if (pwqe->iocb_flag & LPFC_IO_NVMET) {
19759 /* Get the IO distribution (hba_wqidx) for WQ assignment. */
19763 ctxp = pwqe->context2;
19764 sglq = ctxp->ctxbuf->sglq;
19765 if (pwqe->sli4_xritag == NO_XRI) {
19766 pwqe->sli4_lxritag = sglq->sli4_lxritag;
19767 pwqe->sli4_xritag = sglq->sli4_xritag;
19769 bf_set(wqe_xri_tag, &pwqe->wqe.xmit_bls_rsp.wqe_com,
19770 pwqe->sli4_xritag);
19771 bf_set(wqe_cqid, &wqe->generic.wqe_com, qp->nvme_cq_map);
19773 lpfc_qp_spin_lock_irqsave(&pring->ring_lock, iflags,
19775 ret = lpfc_sli4_wq_put(wq, wqe);
19777 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19780 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
19781 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19787 #ifdef LPFC_MXP_STAT
19789 * lpfc_snapshot_mxp - Snapshot pbl, pvt and busy count
19790 * @phba: pointer to lpfc hba data structure.
19791 * @hwqid: belong to which HWQ.
19793 * The purpose of this routine is to take a snapshot of pbl, pvt and busy count
19794 * 15 seconds after a test case is running.
19796 * The user should call lpfc_debugfs_multixripools_write before running a test
19797 * case to clear stat_snapshot_taken. Then the user starts a test case. During
19798 * test case is running, stat_snapshot_taken is incremented by 1 every time when
19799 * this routine is called from heartbeat timer. When stat_snapshot_taken is
19800 * equal to LPFC_MXP_SNAPSHOT_TAKEN, a snapshot is taken.
19802 void lpfc_snapshot_mxp(struct lpfc_hba *phba, u32 hwqid)
19804 struct lpfc_sli4_hdw_queue *qp;
19805 struct lpfc_multixri_pool *multixri_pool;
19806 struct lpfc_pvt_pool *pvt_pool;
19807 struct lpfc_pbl_pool *pbl_pool;
19810 qp = &phba->sli4_hba.hdwq[hwqid];
19811 multixri_pool = qp->p_multixri_pool;
19812 if (!multixri_pool)
19815 if (multixri_pool->stat_snapshot_taken == LPFC_MXP_SNAPSHOT_TAKEN) {
19816 pvt_pool = &qp->p_multixri_pool->pvt_pool;
19817 pbl_pool = &qp->p_multixri_pool->pbl_pool;
19818 txcmplq_cnt = qp->fcp_wq->pring->txcmplq_cnt;
19820 txcmplq_cnt += qp->nvme_wq->pring->txcmplq_cnt;
19822 multixri_pool->stat_pbl_count = pbl_pool->count;
19823 multixri_pool->stat_pvt_count = pvt_pool->count;
19824 multixri_pool->stat_busy_count = txcmplq_cnt;
19827 multixri_pool->stat_snapshot_taken++;
19832 * lpfc_adjust_pvt_pool_count - Adjust private pool count
19833 * @phba: pointer to lpfc hba data structure.
19834 * @hwqid: belong to which HWQ.
19836 * This routine moves some XRIs from private to public pool when private pool
19839 void lpfc_adjust_pvt_pool_count(struct lpfc_hba *phba, u32 hwqid)
19841 struct lpfc_multixri_pool *multixri_pool;
19843 u32 prev_io_req_count;
19845 multixri_pool = phba->sli4_hba.hdwq[hwqid].p_multixri_pool;
19846 if (!multixri_pool)
19848 io_req_count = multixri_pool->io_req_count;
19849 prev_io_req_count = multixri_pool->prev_io_req_count;
19851 if (prev_io_req_count != io_req_count) {
19852 /* Private pool is busy */
19853 multixri_pool->prev_io_req_count = io_req_count;
19855 /* Private pool is not busy.
19856 * Move XRIs from private to public pool.
19858 lpfc_move_xri_pvt_to_pbl(phba, hwqid);
19863 * lpfc_adjust_high_watermark - Adjust high watermark
19864 * @phba: pointer to lpfc hba data structure.
19865 * @hwqid: belong to which HWQ.
19867 * This routine sets high watermark as number of outstanding XRIs,
19868 * but make sure the new value is between xri_limit/2 and xri_limit.
19870 void lpfc_adjust_high_watermark(struct lpfc_hba *phba, u32 hwqid)
19878 struct lpfc_multixri_pool *multixri_pool;
19879 struct lpfc_sli4_hdw_queue *qp;
19881 qp = &phba->sli4_hba.hdwq[hwqid];
19882 multixri_pool = qp->p_multixri_pool;
19883 if (!multixri_pool)
19885 xri_limit = multixri_pool->xri_limit;
19887 watermark_max = xri_limit;
19888 watermark_min = xri_limit / 2;
19890 txcmplq_cnt = qp->fcp_wq->pring->txcmplq_cnt;
19891 abts_io_bufs = qp->abts_scsi_io_bufs;
19893 txcmplq_cnt += qp->nvme_wq->pring->txcmplq_cnt;
19894 abts_io_bufs += qp->abts_nvme_io_bufs;
19897 new_watermark = txcmplq_cnt + abts_io_bufs;
19898 new_watermark = min(watermark_max, new_watermark);
19899 new_watermark = max(watermark_min, new_watermark);
19900 multixri_pool->pvt_pool.high_watermark = new_watermark;
19902 #ifdef LPFC_MXP_STAT
19903 multixri_pool->stat_max_hwm = max(multixri_pool->stat_max_hwm,
19909 * lpfc_move_xri_pvt_to_pbl - Move some XRIs from private to public pool
19910 * @phba: pointer to lpfc hba data structure.
19911 * @hwqid: belong to which HWQ.
19913 * This routine is called from hearbeat timer when pvt_pool is idle.
19914 * All free XRIs are moved from private to public pool on hwqid with 2 steps.
19915 * The first step moves (all - low_watermark) amount of XRIs.
19916 * The second step moves the rest of XRIs.
19918 void lpfc_move_xri_pvt_to_pbl(struct lpfc_hba *phba, u32 hwqid)
19920 struct lpfc_pbl_pool *pbl_pool;
19921 struct lpfc_pvt_pool *pvt_pool;
19922 struct lpfc_sli4_hdw_queue *qp;
19923 struct lpfc_io_buf *lpfc_ncmd;
19924 struct lpfc_io_buf *lpfc_ncmd_next;
19925 unsigned long iflag;
19926 struct list_head tmp_list;
19929 qp = &phba->sli4_hba.hdwq[hwqid];
19930 pbl_pool = &qp->p_multixri_pool->pbl_pool;
19931 pvt_pool = &qp->p_multixri_pool->pvt_pool;
19934 lpfc_qp_spin_lock_irqsave(&pbl_pool->lock, iflag, qp, mv_to_pub_pool);
19935 lpfc_qp_spin_lock(&pvt_pool->lock, qp, mv_from_pvt_pool);
19937 if (pvt_pool->count > pvt_pool->low_watermark) {
19938 /* Step 1: move (all - low_watermark) from pvt_pool
19942 /* Move low watermark of bufs from pvt_pool to tmp_list */
19943 INIT_LIST_HEAD(&tmp_list);
19944 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
19945 &pvt_pool->list, list) {
19946 list_move_tail(&lpfc_ncmd->list, &tmp_list);
19948 if (tmp_count >= pvt_pool->low_watermark)
19952 /* Move all bufs from pvt_pool to pbl_pool */
19953 list_splice_init(&pvt_pool->list, &pbl_pool->list);
19955 /* Move all bufs from tmp_list to pvt_pool */
19956 list_splice(&tmp_list, &pvt_pool->list);
19958 pbl_pool->count += (pvt_pool->count - tmp_count);
19959 pvt_pool->count = tmp_count;
19961 /* Step 2: move the rest from pvt_pool to pbl_pool */
19962 list_splice_init(&pvt_pool->list, &pbl_pool->list);
19963 pbl_pool->count += pvt_pool->count;
19964 pvt_pool->count = 0;
19967 spin_unlock(&pvt_pool->lock);
19968 spin_unlock_irqrestore(&pbl_pool->lock, iflag);
19972 * _lpfc_move_xri_pbl_to_pvt - Move some XRIs from public to private pool
19973 * @phba: pointer to lpfc hba data structure
19974 * @pbl_pool: specified public free XRI pool
19975 * @pvt_pool: specified private free XRI pool
19976 * @count: number of XRIs to move
19978 * This routine tries to move some free common bufs from the specified pbl_pool
19979 * to the specified pvt_pool. It might move less than count XRIs if there's not
19980 * enough in public pool.
19983 * true - if XRIs are successfully moved from the specified pbl_pool to the
19984 * specified pvt_pool
19985 * false - if the specified pbl_pool is empty or locked by someone else
19988 _lpfc_move_xri_pbl_to_pvt(struct lpfc_hba *phba, struct lpfc_sli4_hdw_queue *qp,
19989 struct lpfc_pbl_pool *pbl_pool,
19990 struct lpfc_pvt_pool *pvt_pool, u32 count)
19992 struct lpfc_io_buf *lpfc_ncmd;
19993 struct lpfc_io_buf *lpfc_ncmd_next;
19994 unsigned long iflag;
19997 ret = spin_trylock_irqsave(&pbl_pool->lock, iflag);
19999 if (pbl_pool->count) {
20000 /* Move a batch of XRIs from public to private pool */
20001 lpfc_qp_spin_lock(&pvt_pool->lock, qp, mv_to_pvt_pool);
20002 list_for_each_entry_safe(lpfc_ncmd,
20006 list_move_tail(&lpfc_ncmd->list,
20015 spin_unlock(&pvt_pool->lock);
20016 spin_unlock_irqrestore(&pbl_pool->lock, iflag);
20019 spin_unlock_irqrestore(&pbl_pool->lock, iflag);
20026 * lpfc_move_xri_pbl_to_pvt - Move some XRIs from public to private pool
20027 * @phba: pointer to lpfc hba data structure.
20028 * @hwqid: belong to which HWQ.
20029 * @count: number of XRIs to move
20031 * This routine tries to find some free common bufs in one of public pools with
20032 * Round Robin method. The search always starts from local hwqid, then the next
20033 * HWQ which was found last time (rrb_next_hwqid). Once a public pool is found,
20034 * a batch of free common bufs are moved to private pool on hwqid.
20035 * It might move less than count XRIs if there's not enough in public pool.
20037 void lpfc_move_xri_pbl_to_pvt(struct lpfc_hba *phba, u32 hwqid, u32 count)
20039 struct lpfc_multixri_pool *multixri_pool;
20040 struct lpfc_multixri_pool *next_multixri_pool;
20041 struct lpfc_pvt_pool *pvt_pool;
20042 struct lpfc_pbl_pool *pbl_pool;
20043 struct lpfc_sli4_hdw_queue *qp;
20048 qp = &phba->sli4_hba.hdwq[hwqid];
20049 multixri_pool = qp->p_multixri_pool;
20050 pvt_pool = &multixri_pool->pvt_pool;
20051 pbl_pool = &multixri_pool->pbl_pool;
20053 /* Check if local pbl_pool is available */
20054 ret = _lpfc_move_xri_pbl_to_pvt(phba, qp, pbl_pool, pvt_pool, count);
20056 #ifdef LPFC_MXP_STAT
20057 multixri_pool->local_pbl_hit_count++;
20062 hwq_count = phba->cfg_hdw_queue;
20064 /* Get the next hwqid which was found last time */
20065 next_hwqid = multixri_pool->rrb_next_hwqid;
20068 /* Go to next hwq */
20069 next_hwqid = (next_hwqid + 1) % hwq_count;
20071 next_multixri_pool =
20072 phba->sli4_hba.hdwq[next_hwqid].p_multixri_pool;
20073 pbl_pool = &next_multixri_pool->pbl_pool;
20075 /* Check if the public free xri pool is available */
20076 ret = _lpfc_move_xri_pbl_to_pvt(
20077 phba, qp, pbl_pool, pvt_pool, count);
20079 /* Exit while-loop if success or all hwqid are checked */
20080 } while (!ret && next_hwqid != multixri_pool->rrb_next_hwqid);
20082 /* Starting point for the next time */
20083 multixri_pool->rrb_next_hwqid = next_hwqid;
20086 /* stats: all public pools are empty*/
20087 multixri_pool->pbl_empty_count++;
20090 #ifdef LPFC_MXP_STAT
20092 if (next_hwqid == hwqid)
20093 multixri_pool->local_pbl_hit_count++;
20095 multixri_pool->other_pbl_hit_count++;
20101 * lpfc_keep_pvt_pool_above_lowwm - Keep pvt_pool above low watermark
20102 * @phba: pointer to lpfc hba data structure.
20103 * @qp: belong to which HWQ.
20105 * This routine get a batch of XRIs from pbl_pool if pvt_pool is less than
20108 void lpfc_keep_pvt_pool_above_lowwm(struct lpfc_hba *phba, u32 hwqid)
20110 struct lpfc_multixri_pool *multixri_pool;
20111 struct lpfc_pvt_pool *pvt_pool;
20113 multixri_pool = phba->sli4_hba.hdwq[hwqid].p_multixri_pool;
20114 pvt_pool = &multixri_pool->pvt_pool;
20116 if (pvt_pool->count < pvt_pool->low_watermark)
20117 lpfc_move_xri_pbl_to_pvt(phba, hwqid, XRI_BATCH);
20121 * lpfc_release_io_buf - Return one IO buf back to free pool
20122 * @phba: pointer to lpfc hba data structure.
20123 * @lpfc_ncmd: IO buf to be returned.
20124 * @qp: belong to which HWQ.
20126 * This routine returns one IO buf back to free pool. If this is an urgent IO,
20127 * the IO buf is returned to expedite pool. If cfg_xri_rebalancing==1,
20128 * the IO buf is returned to pbl_pool or pvt_pool based on watermark and
20129 * xri_limit. If cfg_xri_rebalancing==0, the IO buf is returned to
20130 * lpfc_io_buf_list_put.
20132 void lpfc_release_io_buf(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_ncmd,
20133 struct lpfc_sli4_hdw_queue *qp)
20135 unsigned long iflag;
20136 struct lpfc_pbl_pool *pbl_pool;
20137 struct lpfc_pvt_pool *pvt_pool;
20138 struct lpfc_epd_pool *epd_pool;
20144 /* MUST zero fields if buffer is reused by another protocol */
20145 lpfc_ncmd->nvmeCmd = NULL;
20146 lpfc_ncmd->cur_iocbq.wqe_cmpl = NULL;
20147 lpfc_ncmd->cur_iocbq.iocb_cmpl = NULL;
20149 if (phba->cfg_xri_rebalancing) {
20150 if (lpfc_ncmd->expedite) {
20151 /* Return to expedite pool */
20152 epd_pool = &phba->epd_pool;
20153 spin_lock_irqsave(&epd_pool->lock, iflag);
20154 list_add_tail(&lpfc_ncmd->list, &epd_pool->list);
20156 spin_unlock_irqrestore(&epd_pool->lock, iflag);
20160 /* Avoid invalid access if an IO sneaks in and is being rejected
20161 * just _after_ xri pools are destroyed in lpfc_offline.
20162 * Nothing much can be done at this point.
20164 if (!qp->p_multixri_pool)
20167 pbl_pool = &qp->p_multixri_pool->pbl_pool;
20168 pvt_pool = &qp->p_multixri_pool->pvt_pool;
20170 txcmplq_cnt = qp->fcp_wq->pring->txcmplq_cnt;
20171 abts_io_bufs = qp->abts_scsi_io_bufs;
20173 txcmplq_cnt += qp->nvme_wq->pring->txcmplq_cnt;
20174 abts_io_bufs += qp->abts_nvme_io_bufs;
20177 xri_owned = pvt_pool->count + txcmplq_cnt + abts_io_bufs;
20178 xri_limit = qp->p_multixri_pool->xri_limit;
20180 #ifdef LPFC_MXP_STAT
20181 if (xri_owned <= xri_limit)
20182 qp->p_multixri_pool->below_limit_count++;
20184 qp->p_multixri_pool->above_limit_count++;
20187 /* XRI goes to either public or private free xri pool
20188 * based on watermark and xri_limit
20190 if ((pvt_pool->count < pvt_pool->low_watermark) ||
20191 (xri_owned < xri_limit &&
20192 pvt_pool->count < pvt_pool->high_watermark)) {
20193 lpfc_qp_spin_lock_irqsave(&pvt_pool->lock, iflag,
20194 qp, free_pvt_pool);
20195 list_add_tail(&lpfc_ncmd->list,
20198 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
20200 lpfc_qp_spin_lock_irqsave(&pbl_pool->lock, iflag,
20201 qp, free_pub_pool);
20202 list_add_tail(&lpfc_ncmd->list,
20205 spin_unlock_irqrestore(&pbl_pool->lock, iflag);
20208 lpfc_qp_spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag,
20210 list_add_tail(&lpfc_ncmd->list,
20211 &qp->lpfc_io_buf_list_put);
20213 spin_unlock_irqrestore(&qp->io_buf_list_put_lock,
20219 * lpfc_get_io_buf_from_private_pool - Get one free IO buf from private pool
20220 * @phba: pointer to lpfc hba data structure.
20221 * @pvt_pool: pointer to private pool data structure.
20222 * @ndlp: pointer to lpfc nodelist data structure.
20224 * This routine tries to get one free IO buf from private pool.
20227 * pointer to one free IO buf - if private pool is not empty
20228 * NULL - if private pool is empty
20230 static struct lpfc_io_buf *
20231 lpfc_get_io_buf_from_private_pool(struct lpfc_hba *phba,
20232 struct lpfc_sli4_hdw_queue *qp,
20233 struct lpfc_pvt_pool *pvt_pool,
20234 struct lpfc_nodelist *ndlp)
20236 struct lpfc_io_buf *lpfc_ncmd;
20237 struct lpfc_io_buf *lpfc_ncmd_next;
20238 unsigned long iflag;
20240 lpfc_qp_spin_lock_irqsave(&pvt_pool->lock, iflag, qp, alloc_pvt_pool);
20241 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
20242 &pvt_pool->list, list) {
20243 if (lpfc_test_rrq_active(
20244 phba, ndlp, lpfc_ncmd->cur_iocbq.sli4_lxritag))
20246 list_del(&lpfc_ncmd->list);
20248 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
20251 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
20257 * lpfc_get_io_buf_from_expedite_pool - Get one free IO buf from expedite pool
20258 * @phba: pointer to lpfc hba data structure.
20260 * This routine tries to get one free IO buf from expedite pool.
20263 * pointer to one free IO buf - if expedite pool is not empty
20264 * NULL - if expedite pool is empty
20266 static struct lpfc_io_buf *
20267 lpfc_get_io_buf_from_expedite_pool(struct lpfc_hba *phba)
20269 struct lpfc_io_buf *lpfc_ncmd;
20270 struct lpfc_io_buf *lpfc_ncmd_next;
20271 unsigned long iflag;
20272 struct lpfc_epd_pool *epd_pool;
20274 epd_pool = &phba->epd_pool;
20277 spin_lock_irqsave(&epd_pool->lock, iflag);
20278 if (epd_pool->count > 0) {
20279 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
20280 &epd_pool->list, list) {
20281 list_del(&lpfc_ncmd->list);
20286 spin_unlock_irqrestore(&epd_pool->lock, iflag);
20292 * lpfc_get_io_buf_from_multixri_pools - Get one free IO bufs
20293 * @phba: pointer to lpfc hba data structure.
20294 * @ndlp: pointer to lpfc nodelist data structure.
20295 * @hwqid: belong to which HWQ
20296 * @expedite: 1 means this request is urgent.
20298 * This routine will do the following actions and then return a pointer to
20301 * 1. If private free xri count is empty, move some XRIs from public to
20303 * 2. Get one XRI from private free xri pool.
20304 * 3. If we fail to get one from pvt_pool and this is an expedite request,
20305 * get one free xri from expedite pool.
20307 * Note: ndlp is only used on SCSI side for RRQ testing.
20308 * The caller should pass NULL for ndlp on NVME side.
20311 * pointer to one free IO buf - if private pool is not empty
20312 * NULL - if private pool is empty
20314 static struct lpfc_io_buf *
20315 lpfc_get_io_buf_from_multixri_pools(struct lpfc_hba *phba,
20316 struct lpfc_nodelist *ndlp,
20317 int hwqid, int expedite)
20319 struct lpfc_sli4_hdw_queue *qp;
20320 struct lpfc_multixri_pool *multixri_pool;
20321 struct lpfc_pvt_pool *pvt_pool;
20322 struct lpfc_io_buf *lpfc_ncmd;
20324 qp = &phba->sli4_hba.hdwq[hwqid];
20326 multixri_pool = qp->p_multixri_pool;
20327 pvt_pool = &multixri_pool->pvt_pool;
20328 multixri_pool->io_req_count++;
20330 /* If pvt_pool is empty, move some XRIs from public to private pool */
20331 if (pvt_pool->count == 0)
20332 lpfc_move_xri_pbl_to_pvt(phba, hwqid, XRI_BATCH);
20334 /* Get one XRI from private free xri pool */
20335 lpfc_ncmd = lpfc_get_io_buf_from_private_pool(phba, qp, pvt_pool, ndlp);
20338 lpfc_ncmd->hdwq = qp;
20339 lpfc_ncmd->hdwq_no = hwqid;
20340 } else if (expedite) {
20341 /* If we fail to get one from pvt_pool and this is an expedite
20342 * request, get one free xri from expedite pool.
20344 lpfc_ncmd = lpfc_get_io_buf_from_expedite_pool(phba);
20350 static inline struct lpfc_io_buf *
20351 lpfc_io_buf(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp, int idx)
20353 struct lpfc_sli4_hdw_queue *qp;
20354 struct lpfc_io_buf *lpfc_cmd, *lpfc_cmd_next;
20356 qp = &phba->sli4_hba.hdwq[idx];
20357 list_for_each_entry_safe(lpfc_cmd, lpfc_cmd_next,
20358 &qp->lpfc_io_buf_list_get, list) {
20359 if (lpfc_test_rrq_active(phba, ndlp,
20360 lpfc_cmd->cur_iocbq.sli4_lxritag))
20363 if (lpfc_cmd->flags & LPFC_SBUF_NOT_POSTED)
20366 list_del_init(&lpfc_cmd->list);
20368 lpfc_cmd->hdwq = qp;
20369 lpfc_cmd->hdwq_no = idx;
20376 * lpfc_get_io_buf - Get one IO buffer from free pool
20377 * @phba: The HBA for which this call is being executed.
20378 * @ndlp: pointer to lpfc nodelist data structure.
20379 * @hwqid: belong to which HWQ
20380 * @expedite: 1 means this request is urgent.
20382 * This routine gets one IO buffer from free pool. If cfg_xri_rebalancing==1,
20383 * removes a IO buffer from multiXRI pools. If cfg_xri_rebalancing==0, removes
20384 * a IO buffer from head of @hdwq io_buf_list and returns to caller.
20386 * Note: ndlp is only used on SCSI side for RRQ testing.
20387 * The caller should pass NULL for ndlp on NVME side.
20391 * Pointer to lpfc_io_buf - Success
20393 struct lpfc_io_buf *lpfc_get_io_buf(struct lpfc_hba *phba,
20394 struct lpfc_nodelist *ndlp,
20395 u32 hwqid, int expedite)
20397 struct lpfc_sli4_hdw_queue *qp;
20398 unsigned long iflag;
20399 struct lpfc_io_buf *lpfc_cmd;
20401 qp = &phba->sli4_hba.hdwq[hwqid];
20404 if (phba->cfg_xri_rebalancing)
20405 lpfc_cmd = lpfc_get_io_buf_from_multixri_pools(
20406 phba, ndlp, hwqid, expedite);
20408 lpfc_qp_spin_lock_irqsave(&qp->io_buf_list_get_lock, iflag,
20409 qp, alloc_xri_get);
20410 if (qp->get_io_bufs > LPFC_NVME_EXPEDITE_XRICNT || expedite)
20411 lpfc_cmd = lpfc_io_buf(phba, ndlp, hwqid);
20413 lpfc_qp_spin_lock(&qp->io_buf_list_put_lock,
20414 qp, alloc_xri_put);
20415 list_splice(&qp->lpfc_io_buf_list_put,
20416 &qp->lpfc_io_buf_list_get);
20417 qp->get_io_bufs += qp->put_io_bufs;
20418 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
20419 qp->put_io_bufs = 0;
20420 spin_unlock(&qp->io_buf_list_put_lock);
20421 if (qp->get_io_bufs > LPFC_NVME_EXPEDITE_XRICNT ||
20423 lpfc_cmd = lpfc_io_buf(phba, ndlp, hwqid);
20425 spin_unlock_irqrestore(&qp->io_buf_list_get_lock, iflag);