1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2017-2020 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);
90 static struct lpfc_cqe *lpfc_sli4_cq_get(struct lpfc_queue *q);
91 static void __lpfc_sli4_consume_cqe(struct lpfc_hba *phba,
92 struct lpfc_queue *cq,
93 struct lpfc_cqe *cqe);
96 lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq)
101 #if defined(CONFIG_64BIT) && defined(__LITTLE_ENDIAN)
103 * lpfc_sli4_pcimem_bcopy - SLI4 memory copy function
104 * @srcp: Source memory pointer.
105 * @destp: Destination memory pointer.
106 * @cnt: Number of words required to be copied.
107 * Must be a multiple of sizeof(uint64_t)
109 * This function is used for copying data between driver memory
110 * and the SLI WQ. This function also changes the endianness
111 * of each word if native endianness is different from SLI
112 * endianness. This function can be called with or without
116 lpfc_sli4_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
118 uint64_t *src = srcp;
119 uint64_t *dest = destp;
122 for (i = 0; i < (int)cnt; i += sizeof(uint64_t))
126 #define lpfc_sli4_pcimem_bcopy(a, b, c) lpfc_sli_pcimem_bcopy(a, b, c)
130 * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
131 * @q: The Work Queue to operate on.
132 * @wqe: The work Queue Entry to put on the Work queue.
134 * This routine will copy the contents of @wqe to the next available entry on
135 * the @q. This function will then ring the Work Queue Doorbell to signal the
136 * HBA to start processing the Work Queue Entry. This function returns 0 if
137 * successful. If no entries are available on @q then this function will return
139 * The caller is expected to hold the hbalock when calling this routine.
142 lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe128 *wqe)
144 union lpfc_wqe *temp_wqe;
145 struct lpfc_register doorbell;
152 /* sanity check on queue memory */
155 temp_wqe = lpfc_sli4_qe(q, q->host_index);
157 /* If the host has not yet processed the next entry then we are done */
158 idx = ((q->host_index + 1) % q->entry_count);
159 if (idx == q->hba_index) {
164 /* set consumption flag every once in a while */
165 if (!((q->host_index + 1) % q->notify_interval))
166 bf_set(wqe_wqec, &wqe->generic.wqe_com, 1);
168 bf_set(wqe_wqec, &wqe->generic.wqe_com, 0);
169 if (q->phba->sli3_options & LPFC_SLI4_PHWQ_ENABLED)
170 bf_set(wqe_wqid, &wqe->generic.wqe_com, q->queue_id);
171 lpfc_sli4_pcimem_bcopy(wqe, temp_wqe, q->entry_size);
172 if (q->dpp_enable && q->phba->cfg_enable_dpp) {
173 /* write to DPP aperture taking advatage of Combined Writes */
174 tmp = (uint8_t *)temp_wqe;
176 for (i = 0; i < q->entry_size; i += sizeof(uint64_t))
177 __raw_writeq(*((uint64_t *)(tmp + i)),
180 for (i = 0; i < q->entry_size; i += sizeof(uint32_t))
181 __raw_writel(*((uint32_t *)(tmp + i)),
185 /* ensure WQE bcopy and DPP flushed before doorbell write */
188 /* Update the host index before invoking device */
189 host_index = q->host_index;
195 if (q->db_format == LPFC_DB_LIST_FORMAT) {
196 if (q->dpp_enable && q->phba->cfg_enable_dpp) {
197 bf_set(lpfc_if6_wq_db_list_fm_num_posted, &doorbell, 1);
198 bf_set(lpfc_if6_wq_db_list_fm_dpp, &doorbell, 1);
199 bf_set(lpfc_if6_wq_db_list_fm_dpp_id, &doorbell,
201 bf_set(lpfc_if6_wq_db_list_fm_id, &doorbell,
204 bf_set(lpfc_wq_db_list_fm_num_posted, &doorbell, 1);
205 bf_set(lpfc_wq_db_list_fm_id, &doorbell, q->queue_id);
207 /* Leave bits <23:16> clear for if_type 6 dpp */
208 if_type = bf_get(lpfc_sli_intf_if_type,
209 &q->phba->sli4_hba.sli_intf);
210 if (if_type != LPFC_SLI_INTF_IF_TYPE_6)
211 bf_set(lpfc_wq_db_list_fm_index, &doorbell,
214 } else if (q->db_format == LPFC_DB_RING_FORMAT) {
215 bf_set(lpfc_wq_db_ring_fm_num_posted, &doorbell, 1);
216 bf_set(lpfc_wq_db_ring_fm_id, &doorbell, q->queue_id);
220 writel(doorbell.word0, q->db_regaddr);
226 * lpfc_sli4_wq_release - Updates internal hba index for WQ
227 * @q: The Work Queue to operate on.
228 * @index: The index to advance the hba index to.
230 * This routine will update the HBA index of a queue to reflect consumption of
231 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
232 * an entry the host calls this function to update the queue's internal
233 * pointers. This routine returns the number of entries that were consumed by
237 lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index)
239 uint32_t released = 0;
241 /* sanity check on queue memory */
245 if (q->hba_index == index)
248 q->hba_index = ((q->hba_index + 1) % q->entry_count);
250 } while (q->hba_index != index);
255 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
256 * @q: The Mailbox Queue to operate on.
257 * @wqe: The Mailbox Queue Entry to put on the Work queue.
259 * This routine will copy the contents of @mqe to the next available entry on
260 * the @q. This function will then ring the Work Queue Doorbell to signal the
261 * HBA to start processing the Work Queue Entry. This function returns 0 if
262 * successful. If no entries are available on @q then this function will return
264 * The caller is expected to hold the hbalock when calling this routine.
267 lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
269 struct lpfc_mqe *temp_mqe;
270 struct lpfc_register doorbell;
272 /* sanity check on queue memory */
275 temp_mqe = lpfc_sli4_qe(q, q->host_index);
277 /* If the host has not yet processed the next entry then we are done */
278 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
280 lpfc_sli4_pcimem_bcopy(mqe, temp_mqe, q->entry_size);
281 /* Save off the mailbox pointer for completion */
282 q->phba->mbox = (MAILBOX_t *)temp_mqe;
284 /* Update the host index before invoking device */
285 q->host_index = ((q->host_index + 1) % q->entry_count);
289 bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1);
290 bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id);
291 writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr);
296 * lpfc_sli4_mq_release - Updates internal hba index for MQ
297 * @q: The Mailbox Queue to operate on.
299 * This routine will update the HBA index of a queue to reflect consumption of
300 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
301 * an entry the host calls this function to update the queue's internal
302 * pointers. This routine returns the number of entries that were consumed by
306 lpfc_sli4_mq_release(struct lpfc_queue *q)
308 /* sanity check on queue memory */
312 /* Clear the mailbox pointer for completion */
313 q->phba->mbox = NULL;
314 q->hba_index = ((q->hba_index + 1) % q->entry_count);
319 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
320 * @q: The Event Queue to get the first valid EQE from
322 * This routine will get the first valid Event Queue Entry from @q, update
323 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
324 * the Queue (no more work to do), or the Queue is full of EQEs that have been
325 * processed, but not popped back to the HBA then this routine will return NULL.
327 static struct lpfc_eqe *
328 lpfc_sli4_eq_get(struct lpfc_queue *q)
330 struct lpfc_eqe *eqe;
332 /* sanity check on queue memory */
335 eqe = lpfc_sli4_qe(q, q->host_index);
337 /* If the next EQE is not valid then we are done */
338 if (bf_get_le32(lpfc_eqe_valid, eqe) != q->qe_valid)
342 * insert barrier for instruction interlock : data from the hardware
343 * must have the valid bit checked before it can be copied and acted
344 * upon. Speculative instructions were allowing a bcopy at the start
345 * of lpfc_sli4_fp_handle_wcqe(), which is called immediately
346 * after our return, to copy data before the valid bit check above
347 * was done. As such, some of the copied data was stale. The barrier
348 * ensures the check is before any data is copied.
355 * lpfc_sli4_eq_clr_intr - Turn off interrupts from this EQ
356 * @q: The Event Queue to disable interrupts
360 lpfc_sli4_eq_clr_intr(struct lpfc_queue *q)
362 struct lpfc_register doorbell;
365 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
366 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
367 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
368 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
369 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
370 writel(doorbell.word0, q->phba->sli4_hba.EQDBregaddr);
374 * lpfc_sli4_if6_eq_clr_intr - Turn off interrupts from this EQ
375 * @q: The Event Queue to disable interrupts
379 lpfc_sli4_if6_eq_clr_intr(struct lpfc_queue *q)
381 struct lpfc_register doorbell;
384 bf_set(lpfc_if6_eq_doorbell_eqid, &doorbell, q->queue_id);
385 writel(doorbell.word0, q->phba->sli4_hba.EQDBregaddr);
389 * lpfc_sli4_write_eq_db - write EQ DB for eqe's consumed or arm state
390 * @phba: adapter with EQ
391 * @q: The Event Queue that the host has completed processing for.
392 * @count: Number of elements that have been consumed
393 * @arm: Indicates whether the host wants to arms this CQ.
395 * This routine will notify the HBA, by ringing the doorbell, that count
396 * number of EQEs have been processed. The @arm parameter indicates whether
397 * the queue should be rearmed when ringing the doorbell.
400 lpfc_sli4_write_eq_db(struct lpfc_hba *phba, struct lpfc_queue *q,
401 uint32_t count, bool arm)
403 struct lpfc_register doorbell;
405 /* sanity check on queue memory */
406 if (unlikely(!q || (count == 0 && !arm)))
409 /* ring doorbell for number popped */
412 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
413 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
415 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, count);
416 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
417 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
418 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
419 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
420 writel(doorbell.word0, q->phba->sli4_hba.EQDBregaddr);
421 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
422 if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
423 readl(q->phba->sli4_hba.EQDBregaddr);
427 * lpfc_sli4_if6_write_eq_db - write EQ DB for eqe's consumed or arm state
428 * @phba: adapter with EQ
429 * @q: The Event Queue that the host has completed processing for.
430 * @count: Number of elements that have been consumed
431 * @arm: Indicates whether the host wants to arms this CQ.
433 * This routine will notify the HBA, by ringing the doorbell, that count
434 * number of EQEs have been processed. The @arm parameter indicates whether
435 * the queue should be rearmed when ringing the doorbell.
438 lpfc_sli4_if6_write_eq_db(struct lpfc_hba *phba, struct lpfc_queue *q,
439 uint32_t count, bool arm)
441 struct lpfc_register doorbell;
443 /* sanity check on queue memory */
444 if (unlikely(!q || (count == 0 && !arm)))
447 /* ring doorbell for number popped */
450 bf_set(lpfc_if6_eq_doorbell_arm, &doorbell, 1);
451 bf_set(lpfc_if6_eq_doorbell_num_released, &doorbell, count);
452 bf_set(lpfc_if6_eq_doorbell_eqid, &doorbell, q->queue_id);
453 writel(doorbell.word0, q->phba->sli4_hba.EQDBregaddr);
454 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
455 if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
456 readl(q->phba->sli4_hba.EQDBregaddr);
460 __lpfc_sli4_consume_eqe(struct lpfc_hba *phba, struct lpfc_queue *eq,
461 struct lpfc_eqe *eqe)
463 if (!phba->sli4_hba.pc_sli4_params.eqav)
464 bf_set_le32(lpfc_eqe_valid, eqe, 0);
466 eq->host_index = ((eq->host_index + 1) % eq->entry_count);
468 /* if the index wrapped around, toggle the valid bit */
469 if (phba->sli4_hba.pc_sli4_params.eqav && !eq->host_index)
470 eq->qe_valid = (eq->qe_valid) ? 0 : 1;
474 lpfc_sli4_eqcq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
476 struct lpfc_eqe *eqe = NULL;
477 u32 eq_count = 0, cq_count = 0;
478 struct lpfc_cqe *cqe = NULL;
479 struct lpfc_queue *cq = NULL, *childq = NULL;
482 /* walk all the EQ entries and drop on the floor */
483 eqe = lpfc_sli4_eq_get(eq);
485 /* Get the reference to the corresponding CQ */
486 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
489 list_for_each_entry(childq, &eq->child_list, list) {
490 if (childq->queue_id == cqid) {
495 /* If CQ is valid, iterate through it and drop all the CQEs */
497 cqe = lpfc_sli4_cq_get(cq);
499 __lpfc_sli4_consume_cqe(phba, cq, cqe);
501 cqe = lpfc_sli4_cq_get(cq);
503 /* Clear and re-arm the CQ */
504 phba->sli4_hba.sli4_write_cq_db(phba, cq, cq_count,
508 __lpfc_sli4_consume_eqe(phba, eq, eqe);
510 eqe = lpfc_sli4_eq_get(eq);
513 /* Clear and re-arm the EQ */
514 phba->sli4_hba.sli4_write_eq_db(phba, eq, eq_count, LPFC_QUEUE_REARM);
518 lpfc_sli4_process_eq(struct lpfc_hba *phba, struct lpfc_queue *eq,
521 struct lpfc_eqe *eqe;
522 int count = 0, consumed = 0;
524 if (cmpxchg(&eq->queue_claimed, 0, 1) != 0)
527 eqe = lpfc_sli4_eq_get(eq);
529 lpfc_sli4_hba_handle_eqe(phba, eq, eqe);
530 __lpfc_sli4_consume_eqe(phba, eq, eqe);
533 if (!(++count % eq->max_proc_limit))
536 if (!(count % eq->notify_interval)) {
537 phba->sli4_hba.sli4_write_eq_db(phba, eq, consumed,
542 eqe = lpfc_sli4_eq_get(eq);
544 eq->EQ_processed += count;
546 /* Track the max number of EQEs processed in 1 intr */
547 if (count > eq->EQ_max_eqe)
548 eq->EQ_max_eqe = count;
550 eq->queue_claimed = 0;
553 /* Always clear the EQ. */
554 phba->sli4_hba.sli4_write_eq_db(phba, eq, consumed, rearm);
560 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
561 * @q: The Completion Queue to get the first valid CQE from
563 * This routine will get the first valid Completion Queue Entry from @q, update
564 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
565 * the Queue (no more work to do), or the Queue is full of CQEs that have been
566 * processed, but not popped back to the HBA then this routine will return NULL.
568 static struct lpfc_cqe *
569 lpfc_sli4_cq_get(struct lpfc_queue *q)
571 struct lpfc_cqe *cqe;
573 /* sanity check on queue memory */
576 cqe = lpfc_sli4_qe(q, q->host_index);
578 /* If the next CQE is not valid then we are done */
579 if (bf_get_le32(lpfc_cqe_valid, cqe) != q->qe_valid)
583 * insert barrier for instruction interlock : data from the hardware
584 * must have the valid bit checked before it can be copied and acted
585 * upon. Given what was seen in lpfc_sli4_cq_get() of speculative
586 * instructions allowing action on content before valid bit checked,
587 * add barrier here as well. May not be needed as "content" is a
588 * single 32-bit entity here (vs multi word structure for cq's).
595 __lpfc_sli4_consume_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
596 struct lpfc_cqe *cqe)
598 if (!phba->sli4_hba.pc_sli4_params.cqav)
599 bf_set_le32(lpfc_cqe_valid, cqe, 0);
601 cq->host_index = ((cq->host_index + 1) % cq->entry_count);
603 /* if the index wrapped around, toggle the valid bit */
604 if (phba->sli4_hba.pc_sli4_params.cqav && !cq->host_index)
605 cq->qe_valid = (cq->qe_valid) ? 0 : 1;
609 * lpfc_sli4_write_cq_db - write cq DB for entries consumed or arm state.
610 * @phba: the adapter with the CQ
611 * @q: The Completion Queue that the host has completed processing for.
612 * @count: the number of elements that were consumed
613 * @arm: Indicates whether the host wants to arms this CQ.
615 * This routine will notify the HBA, by ringing the doorbell, that the
616 * CQEs have been processed. The @arm parameter specifies whether the
617 * queue should be rearmed when ringing the doorbell.
620 lpfc_sli4_write_cq_db(struct lpfc_hba *phba, struct lpfc_queue *q,
621 uint32_t count, bool arm)
623 struct lpfc_register doorbell;
625 /* sanity check on queue memory */
626 if (unlikely(!q || (count == 0 && !arm)))
629 /* ring doorbell for number popped */
632 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
633 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, count);
634 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION);
635 bf_set(lpfc_eqcq_doorbell_cqid_hi, &doorbell,
636 (q->queue_id >> LPFC_CQID_HI_FIELD_SHIFT));
637 bf_set(lpfc_eqcq_doorbell_cqid_lo, &doorbell, q->queue_id);
638 writel(doorbell.word0, q->phba->sli4_hba.CQDBregaddr);
642 * lpfc_sli4_if6_write_cq_db - write cq DB for entries consumed or arm state.
643 * @phba: the adapter with the CQ
644 * @q: The Completion Queue that the host has completed processing for.
645 * @count: the number of elements that were consumed
646 * @arm: Indicates whether the host wants to arms this CQ.
648 * This routine will notify the HBA, by ringing the doorbell, that the
649 * CQEs have been processed. The @arm parameter specifies whether the
650 * queue should be rearmed when ringing the doorbell.
653 lpfc_sli4_if6_write_cq_db(struct lpfc_hba *phba, struct lpfc_queue *q,
654 uint32_t count, bool arm)
656 struct lpfc_register doorbell;
658 /* sanity check on queue memory */
659 if (unlikely(!q || (count == 0 && !arm)))
662 /* ring doorbell for number popped */
665 bf_set(lpfc_if6_cq_doorbell_arm, &doorbell, 1);
666 bf_set(lpfc_if6_cq_doorbell_num_released, &doorbell, count);
667 bf_set(lpfc_if6_cq_doorbell_cqid, &doorbell, q->queue_id);
668 writel(doorbell.word0, q->phba->sli4_hba.CQDBregaddr);
672 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
673 * @q: The Header Receive Queue to operate on.
674 * @wqe: The Receive Queue Entry to put on the Receive queue.
676 * This routine will copy the contents of @wqe to the next available entry on
677 * the @q. This function will then ring the Receive Queue Doorbell to signal the
678 * HBA to start processing the Receive Queue Entry. This function returns the
679 * index that the rqe was copied to if successful. If no entries are available
680 * on @q then this function will return -ENOMEM.
681 * The caller is expected to hold the hbalock when calling this routine.
684 lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
685 struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe)
687 struct lpfc_rqe *temp_hrqe;
688 struct lpfc_rqe *temp_drqe;
689 struct lpfc_register doorbell;
693 /* sanity check on queue memory */
694 if (unlikely(!hq) || unlikely(!dq))
696 hq_put_index = hq->host_index;
697 dq_put_index = dq->host_index;
698 temp_hrqe = lpfc_sli4_qe(hq, hq_put_index);
699 temp_drqe = lpfc_sli4_qe(dq, dq_put_index);
701 if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ)
703 if (hq_put_index != dq_put_index)
705 /* If the host has not yet processed the next entry then we are done */
706 if (((hq_put_index + 1) % hq->entry_count) == hq->hba_index)
708 lpfc_sli4_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size);
709 lpfc_sli4_pcimem_bcopy(drqe, temp_drqe, dq->entry_size);
711 /* Update the host index to point to the next slot */
712 hq->host_index = ((hq_put_index + 1) % hq->entry_count);
713 dq->host_index = ((dq_put_index + 1) % dq->entry_count);
716 /* Ring The Header Receive Queue Doorbell */
717 if (!(hq->host_index % hq->notify_interval)) {
719 if (hq->db_format == LPFC_DB_RING_FORMAT) {
720 bf_set(lpfc_rq_db_ring_fm_num_posted, &doorbell,
721 hq->notify_interval);
722 bf_set(lpfc_rq_db_ring_fm_id, &doorbell, hq->queue_id);
723 } else if (hq->db_format == LPFC_DB_LIST_FORMAT) {
724 bf_set(lpfc_rq_db_list_fm_num_posted, &doorbell,
725 hq->notify_interval);
726 bf_set(lpfc_rq_db_list_fm_index, &doorbell,
728 bf_set(lpfc_rq_db_list_fm_id, &doorbell, hq->queue_id);
732 writel(doorbell.word0, hq->db_regaddr);
738 * lpfc_sli4_rq_release - Updates internal hba index for RQ
739 * @q: The Header Receive Queue to operate on.
741 * This routine will update the HBA index of a queue to reflect consumption of
742 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
743 * consumed an entry the host calls this function to update the queue's
744 * internal pointers. This routine returns the number of entries that were
745 * consumed by the HBA.
748 lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq)
750 /* sanity check on queue memory */
751 if (unlikely(!hq) || unlikely(!dq))
754 if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ))
756 hq->hba_index = ((hq->hba_index + 1) % hq->entry_count);
757 dq->hba_index = ((dq->hba_index + 1) % dq->entry_count);
762 * lpfc_cmd_iocb - Get next command iocb entry in the ring
763 * @phba: Pointer to HBA context object.
764 * @pring: Pointer to driver SLI ring object.
766 * This function returns pointer to next command iocb entry
767 * in the command ring. The caller must hold hbalock to prevent
768 * other threads consume the next command iocb.
769 * SLI-2/SLI-3 provide different sized iocbs.
771 static inline IOCB_t *
772 lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
774 return (IOCB_t *) (((char *) pring->sli.sli3.cmdringaddr) +
775 pring->sli.sli3.cmdidx * phba->iocb_cmd_size);
779 * lpfc_resp_iocb - Get next response iocb entry in the ring
780 * @phba: Pointer to HBA context object.
781 * @pring: Pointer to driver SLI ring object.
783 * This function returns pointer to next response iocb entry
784 * in the response ring. The caller must hold hbalock to make sure
785 * that no other thread consume the next response iocb.
786 * SLI-2/SLI-3 provide different sized iocbs.
788 static inline IOCB_t *
789 lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
791 return (IOCB_t *) (((char *) pring->sli.sli3.rspringaddr) +
792 pring->sli.sli3.rspidx * phba->iocb_rsp_size);
796 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
797 * @phba: Pointer to HBA context object.
799 * This function is called with hbalock held. This function
800 * allocates a new driver iocb object from the iocb pool. If the
801 * allocation is successful, it returns pointer to the newly
802 * allocated iocb object else it returns NULL.
805 __lpfc_sli_get_iocbq(struct lpfc_hba *phba)
807 struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
808 struct lpfc_iocbq * iocbq = NULL;
810 lockdep_assert_held(&phba->hbalock);
812 list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
815 if (phba->iocb_cnt > phba->iocb_max)
816 phba->iocb_max = phba->iocb_cnt;
821 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
822 * @phba: Pointer to HBA context object.
823 * @xritag: XRI value.
825 * This function clears the sglq pointer from the array of acive
826 * sglq's. The xritag that is passed in is used to index into the
827 * array. Before the xritag can be used it needs to be adjusted
828 * by subtracting the xribase.
830 * Returns sglq ponter = success, NULL = Failure.
833 __lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
835 struct lpfc_sglq *sglq;
837 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
838 phba->sli4_hba.lpfc_sglq_active_list[xritag] = NULL;
843 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
844 * @phba: Pointer to HBA context object.
845 * @xritag: XRI value.
847 * This function returns the sglq pointer from the array of acive
848 * sglq's. The xritag that is passed in is used to index into the
849 * array. Before the xritag can be used it needs to be adjusted
850 * by subtracting the xribase.
852 * Returns sglq ponter = success, NULL = Failure.
855 __lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
857 struct lpfc_sglq *sglq;
859 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
864 * lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
865 * @phba: Pointer to HBA context object.
866 * @xritag: xri used in this exchange.
867 * @rrq: The RRQ to be cleared.
871 lpfc_clr_rrq_active(struct lpfc_hba *phba,
873 struct lpfc_node_rrq *rrq)
875 struct lpfc_nodelist *ndlp = NULL;
877 if ((rrq->vport) && NLP_CHK_NODE_ACT(rrq->ndlp))
878 ndlp = lpfc_findnode_did(rrq->vport, rrq->nlp_DID);
880 /* The target DID could have been swapped (cable swap)
881 * we should use the ndlp from the findnode if it is
884 if ((!ndlp) && rrq->ndlp)
890 if (test_and_clear_bit(xritag, ndlp->active_rrqs_xri_bitmap)) {
893 rrq->rrq_stop_time = 0;
896 mempool_free(rrq, phba->rrq_pool);
900 * lpfc_handle_rrq_active - Checks if RRQ has waithed RATOV.
901 * @phba: Pointer to HBA context object.
903 * This function is called with hbalock held. This function
904 * Checks if stop_time (ratov from setting rrq active) has
905 * been reached, if it has and the send_rrq flag is set then
906 * it will call lpfc_send_rrq. If the send_rrq flag is not set
907 * then it will just call the routine to clear the rrq and
908 * free the rrq resource.
909 * The timer is set to the next rrq that is going to expire before
910 * leaving the routine.
914 lpfc_handle_rrq_active(struct lpfc_hba *phba)
916 struct lpfc_node_rrq *rrq;
917 struct lpfc_node_rrq *nextrrq;
918 unsigned long next_time;
919 unsigned long iflags;
922 spin_lock_irqsave(&phba->hbalock, iflags);
923 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
924 next_time = jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
925 list_for_each_entry_safe(rrq, nextrrq,
926 &phba->active_rrq_list, list) {
927 if (time_after(jiffies, rrq->rrq_stop_time))
928 list_move(&rrq->list, &send_rrq);
929 else if (time_before(rrq->rrq_stop_time, next_time))
930 next_time = rrq->rrq_stop_time;
932 spin_unlock_irqrestore(&phba->hbalock, iflags);
933 if ((!list_empty(&phba->active_rrq_list)) &&
934 (!(phba->pport->load_flag & FC_UNLOADING)))
935 mod_timer(&phba->rrq_tmr, next_time);
936 list_for_each_entry_safe(rrq, nextrrq, &send_rrq, list) {
937 list_del(&rrq->list);
938 if (!rrq->send_rrq) {
939 /* this call will free the rrq */
940 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
941 } else if (lpfc_send_rrq(phba, rrq)) {
942 /* if we send the rrq then the completion handler
943 * will clear the bit in the xribitmap.
945 lpfc_clr_rrq_active(phba, rrq->xritag,
952 * lpfc_get_active_rrq - Get the active RRQ for this exchange.
953 * @vport: Pointer to vport context object.
954 * @xri: The xri used in the exchange.
955 * @did: The targets DID for this exchange.
957 * returns NULL = rrq not found in the phba->active_rrq_list.
958 * rrq = rrq for this xri and target.
960 struct lpfc_node_rrq *
961 lpfc_get_active_rrq(struct lpfc_vport *vport, uint16_t xri, uint32_t did)
963 struct lpfc_hba *phba = vport->phba;
964 struct lpfc_node_rrq *rrq;
965 struct lpfc_node_rrq *nextrrq;
966 unsigned long iflags;
968 if (phba->sli_rev != LPFC_SLI_REV4)
970 spin_lock_irqsave(&phba->hbalock, iflags);
971 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) {
972 if (rrq->vport == vport && rrq->xritag == xri &&
973 rrq->nlp_DID == did){
974 list_del(&rrq->list);
975 spin_unlock_irqrestore(&phba->hbalock, iflags);
979 spin_unlock_irqrestore(&phba->hbalock, iflags);
984 * lpfc_cleanup_vports_rrqs - Remove and clear the active RRQ for this vport.
985 * @vport: Pointer to vport context object.
986 * @ndlp: Pointer to the lpfc_node_list structure.
987 * If ndlp is NULL Remove all active RRQs for this vport from the
988 * phba->active_rrq_list and clear the rrq.
989 * If ndlp is not NULL then only remove rrqs for this vport & this ndlp.
992 lpfc_cleanup_vports_rrqs(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
995 struct lpfc_hba *phba = vport->phba;
996 struct lpfc_node_rrq *rrq;
997 struct lpfc_node_rrq *nextrrq;
998 unsigned long iflags;
1001 if (phba->sli_rev != LPFC_SLI_REV4)
1004 lpfc_sli4_vport_delete_els_xri_aborted(vport);
1005 lpfc_sli4_vport_delete_fcp_xri_aborted(vport);
1007 spin_lock_irqsave(&phba->hbalock, iflags);
1008 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list)
1009 if ((rrq->vport == vport) && (!ndlp || rrq->ndlp == ndlp))
1010 list_move(&rrq->list, &rrq_list);
1011 spin_unlock_irqrestore(&phba->hbalock, iflags);
1013 list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
1014 list_del(&rrq->list);
1015 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
1020 * lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
1021 * @phba: Pointer to HBA context object.
1022 * @ndlp: Targets nodelist pointer for this exchange.
1023 * @xritag the xri in the bitmap to test.
1025 * This function returns:
1026 * 0 = rrq not active for this xri
1027 * 1 = rrq is valid for this xri.
1030 lpfc_test_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
1035 if (!ndlp->active_rrqs_xri_bitmap)
1037 if (test_bit(xritag, ndlp->active_rrqs_xri_bitmap))
1044 * lpfc_set_rrq_active - set RRQ active bit in xri_bitmap.
1045 * @phba: Pointer to HBA context object.
1046 * @ndlp: nodelist pointer for this target.
1047 * @xritag: xri used in this exchange.
1048 * @rxid: Remote Exchange ID.
1049 * @send_rrq: Flag used to determine if we should send rrq els cmd.
1051 * This function takes the hbalock.
1052 * The active bit is always set in the active rrq xri_bitmap even
1053 * if there is no slot avaiable for the other rrq information.
1055 * returns 0 rrq actived for this xri
1056 * < 0 No memory or invalid ndlp.
1059 lpfc_set_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
1060 uint16_t xritag, uint16_t rxid, uint16_t send_rrq)
1062 unsigned long iflags;
1063 struct lpfc_node_rrq *rrq;
1069 if (!phba->cfg_enable_rrq)
1072 spin_lock_irqsave(&phba->hbalock, iflags);
1073 if (phba->pport->load_flag & FC_UNLOADING) {
1074 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1079 * set the active bit even if there is no mem available.
1081 if (NLP_CHK_FREE_REQ(ndlp))
1084 if (ndlp->vport && (ndlp->vport->load_flag & FC_UNLOADING))
1087 if (!ndlp->active_rrqs_xri_bitmap)
1090 if (test_and_set_bit(xritag, ndlp->active_rrqs_xri_bitmap))
1093 spin_unlock_irqrestore(&phba->hbalock, iflags);
1094 rrq = mempool_alloc(phba->rrq_pool, GFP_KERNEL);
1096 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
1097 "3155 Unable to allocate RRQ xri:0x%x rxid:0x%x"
1098 " DID:0x%x Send:%d\n",
1099 xritag, rxid, ndlp->nlp_DID, send_rrq);
1102 if (phba->cfg_enable_rrq == 1)
1103 rrq->send_rrq = send_rrq;
1106 rrq->xritag = xritag;
1107 rrq->rrq_stop_time = jiffies +
1108 msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
1110 rrq->nlp_DID = ndlp->nlp_DID;
1111 rrq->vport = ndlp->vport;
1113 spin_lock_irqsave(&phba->hbalock, iflags);
1114 empty = list_empty(&phba->active_rrq_list);
1115 list_add_tail(&rrq->list, &phba->active_rrq_list);
1116 phba->hba_flag |= HBA_RRQ_ACTIVE;
1118 lpfc_worker_wake_up(phba);
1119 spin_unlock_irqrestore(&phba->hbalock, iflags);
1122 spin_unlock_irqrestore(&phba->hbalock, iflags);
1123 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
1124 "2921 Can't set rrq active xri:0x%x rxid:0x%x"
1125 " DID:0x%x Send:%d\n",
1126 xritag, rxid, ndlp->nlp_DID, send_rrq);
1131 * __lpfc_sli_get_els_sglq - Allocates an iocb object from sgl pool
1132 * @phba: Pointer to HBA context object.
1133 * @piocb: Pointer to the iocbq.
1135 * The driver calls this function with either the nvme ls ring lock
1136 * or the fc els ring lock held depending on the iocb usage. This function
1137 * gets a new driver sglq object from the sglq list. If the list is not empty
1138 * then it is successful, it returns pointer to the newly allocated sglq
1139 * object else it returns NULL.
1141 static struct lpfc_sglq *
1142 __lpfc_sli_get_els_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
1144 struct list_head *lpfc_els_sgl_list = &phba->sli4_hba.lpfc_els_sgl_list;
1145 struct lpfc_sglq *sglq = NULL;
1146 struct lpfc_sglq *start_sglq = NULL;
1147 struct lpfc_io_buf *lpfc_cmd;
1148 struct lpfc_nodelist *ndlp;
1149 struct lpfc_sli_ring *pring = NULL;
1152 if (piocbq->iocb_flag & LPFC_IO_NVME_LS)
1153 pring = phba->sli4_hba.nvmels_wq->pring;
1155 pring = lpfc_phba_elsring(phba);
1157 lockdep_assert_held(&pring->ring_lock);
1159 if (piocbq->iocb_flag & LPFC_IO_FCP) {
1160 lpfc_cmd = (struct lpfc_io_buf *) piocbq->context1;
1161 ndlp = lpfc_cmd->rdata->pnode;
1162 } else if ((piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) &&
1163 !(piocbq->iocb_flag & LPFC_IO_LIBDFC)) {
1164 ndlp = piocbq->context_un.ndlp;
1165 } else if (piocbq->iocb_flag & LPFC_IO_LIBDFC) {
1166 if (piocbq->iocb_flag & LPFC_IO_LOOPBACK)
1169 ndlp = piocbq->context_un.ndlp;
1171 ndlp = piocbq->context1;
1174 spin_lock(&phba->sli4_hba.sgl_list_lock);
1175 list_remove_head(lpfc_els_sgl_list, sglq, struct lpfc_sglq, list);
1180 if (ndlp && ndlp->active_rrqs_xri_bitmap &&
1181 test_bit(sglq->sli4_lxritag,
1182 ndlp->active_rrqs_xri_bitmap)) {
1183 /* This xri has an rrq outstanding for this DID.
1184 * put it back in the list and get another xri.
1186 list_add_tail(&sglq->list, lpfc_els_sgl_list);
1188 list_remove_head(lpfc_els_sgl_list, sglq,
1189 struct lpfc_sglq, list);
1190 if (sglq == start_sglq) {
1191 list_add_tail(&sglq->list, lpfc_els_sgl_list);
1199 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
1200 sglq->state = SGL_ALLOCATED;
1202 spin_unlock(&phba->sli4_hba.sgl_list_lock);
1207 * __lpfc_sli_get_nvmet_sglq - Allocates an iocb object from sgl pool
1208 * @phba: Pointer to HBA context object.
1209 * @piocb: Pointer to the iocbq.
1211 * This function is called with the sgl_list lock held. This function
1212 * gets a new driver sglq object from the sglq list. If the
1213 * list is not empty then it is successful, it returns pointer to the newly
1214 * allocated sglq object else it returns NULL.
1217 __lpfc_sli_get_nvmet_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
1219 struct list_head *lpfc_nvmet_sgl_list;
1220 struct lpfc_sglq *sglq = NULL;
1222 lpfc_nvmet_sgl_list = &phba->sli4_hba.lpfc_nvmet_sgl_list;
1224 lockdep_assert_held(&phba->sli4_hba.sgl_list_lock);
1226 list_remove_head(lpfc_nvmet_sgl_list, sglq, struct lpfc_sglq, list);
1229 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
1230 sglq->state = SGL_ALLOCATED;
1235 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
1236 * @phba: Pointer to HBA context object.
1238 * This function is called with no lock held. This function
1239 * allocates a new driver iocb object from the iocb pool. If the
1240 * allocation is successful, it returns pointer to the newly
1241 * allocated iocb object else it returns NULL.
1244 lpfc_sli_get_iocbq(struct lpfc_hba *phba)
1246 struct lpfc_iocbq * iocbq = NULL;
1247 unsigned long iflags;
1249 spin_lock_irqsave(&phba->hbalock, iflags);
1250 iocbq = __lpfc_sli_get_iocbq(phba);
1251 spin_unlock_irqrestore(&phba->hbalock, iflags);
1256 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
1257 * @phba: Pointer to HBA context object.
1258 * @iocbq: Pointer to driver iocb object.
1260 * This function is called with hbalock held to release driver
1261 * iocb object to the iocb pool. The iotag in the iocb object
1262 * does not change for each use of the iocb object. This function
1263 * clears all other fields of the iocb object when it is freed.
1264 * The sqlq structure that holds the xritag and phys and virtual
1265 * mappings for the scatter gather list is retrieved from the
1266 * active array of sglq. The get of the sglq pointer also clears
1267 * the entry in the array. If the status of the IO indiactes that
1268 * this IO was aborted then the sglq entry it put on the
1269 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
1270 * IO has good status or fails for any other reason then the sglq
1271 * entry is added to the free list (lpfc_els_sgl_list).
1274 __lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1276 struct lpfc_sglq *sglq;
1277 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1278 unsigned long iflag = 0;
1279 struct lpfc_sli_ring *pring;
1281 lockdep_assert_held(&phba->hbalock);
1283 if (iocbq->sli4_xritag == NO_XRI)
1286 sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_lxritag);
1290 if (iocbq->iocb_flag & LPFC_IO_NVMET) {
1291 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock,
1293 sglq->state = SGL_FREED;
1295 list_add_tail(&sglq->list,
1296 &phba->sli4_hba.lpfc_nvmet_sgl_list);
1297 spin_unlock_irqrestore(
1298 &phba->sli4_hba.sgl_list_lock, iflag);
1302 pring = phba->sli4_hba.els_wq->pring;
1303 if ((iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) &&
1304 (sglq->state != SGL_XRI_ABORTED)) {
1305 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock,
1307 list_add(&sglq->list,
1308 &phba->sli4_hba.lpfc_abts_els_sgl_list);
1309 spin_unlock_irqrestore(
1310 &phba->sli4_hba.sgl_list_lock, iflag);
1312 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock,
1314 sglq->state = SGL_FREED;
1316 list_add_tail(&sglq->list,
1317 &phba->sli4_hba.lpfc_els_sgl_list);
1318 spin_unlock_irqrestore(
1319 &phba->sli4_hba.sgl_list_lock, iflag);
1321 /* Check if TXQ queue needs to be serviced */
1322 if (!list_empty(&pring->txq))
1323 lpfc_worker_wake_up(phba);
1329 * Clean all volatile data fields, preserve iotag and node struct.
1331 memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1332 iocbq->sli4_lxritag = NO_XRI;
1333 iocbq->sli4_xritag = NO_XRI;
1334 iocbq->iocb_flag &= ~(LPFC_IO_NVME | LPFC_IO_NVMET |
1336 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1341 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
1342 * @phba: Pointer to HBA context object.
1343 * @iocbq: Pointer to driver iocb object.
1345 * This function is called with hbalock held to release driver
1346 * iocb object to the iocb pool. The iotag in the iocb object
1347 * does not change for each use of the iocb object. This function
1348 * clears all other fields of the iocb object when it is freed.
1351 __lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1353 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1355 lockdep_assert_held(&phba->hbalock);
1358 * Clean all volatile data fields, preserve iotag and node struct.
1360 memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1361 iocbq->sli4_xritag = NO_XRI;
1362 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1366 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
1367 * @phba: Pointer to HBA context object.
1368 * @iocbq: Pointer to driver iocb object.
1370 * This function is called with hbalock held to release driver
1371 * iocb object to the iocb pool. The iotag in the iocb object
1372 * does not change for each use of the iocb object. This function
1373 * clears all other fields of the iocb object when it is freed.
1376 __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1378 lockdep_assert_held(&phba->hbalock);
1380 phba->__lpfc_sli_release_iocbq(phba, iocbq);
1385 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
1386 * @phba: Pointer to HBA context object.
1387 * @iocbq: Pointer to driver iocb object.
1389 * This function is called with no lock held to release the iocb to
1393 lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1395 unsigned long iflags;
1398 * Clean all volatile data fields, preserve iotag and node struct.
1400 spin_lock_irqsave(&phba->hbalock, iflags);
1401 __lpfc_sli_release_iocbq(phba, iocbq);
1402 spin_unlock_irqrestore(&phba->hbalock, iflags);
1406 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
1407 * @phba: Pointer to HBA context object.
1408 * @iocblist: List of IOCBs.
1409 * @ulpstatus: ULP status in IOCB command field.
1410 * @ulpWord4: ULP word-4 in IOCB command field.
1412 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
1413 * on the list by invoking the complete callback function associated with the
1414 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
1418 lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
1419 uint32_t ulpstatus, uint32_t ulpWord4)
1421 struct lpfc_iocbq *piocb;
1423 while (!list_empty(iocblist)) {
1424 list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
1425 if (!piocb->iocb_cmpl) {
1426 if (piocb->iocb_flag & LPFC_IO_NVME)
1427 lpfc_nvme_cancel_iocb(phba, piocb);
1429 lpfc_sli_release_iocbq(phba, piocb);
1431 piocb->iocb.ulpStatus = ulpstatus;
1432 piocb->iocb.un.ulpWord[4] = ulpWord4;
1433 (piocb->iocb_cmpl) (phba, piocb, piocb);
1440 * lpfc_sli_iocb_cmd_type - Get the iocb type
1441 * @iocb_cmnd: iocb command code.
1443 * This function is called by ring event handler function to get the iocb type.
1444 * This function translates the iocb command to an iocb command type used to
1445 * decide the final disposition of each completed IOCB.
1446 * The function returns
1447 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
1448 * LPFC_SOL_IOCB if it is a solicited iocb completion
1449 * LPFC_ABORT_IOCB if it is an abort iocb
1450 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
1452 * The caller is not required to hold any lock.
1454 static lpfc_iocb_type
1455 lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
1457 lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
1459 if (iocb_cmnd > CMD_MAX_IOCB_CMD)
1462 switch (iocb_cmnd) {
1463 case CMD_XMIT_SEQUENCE_CR:
1464 case CMD_XMIT_SEQUENCE_CX:
1465 case CMD_XMIT_BCAST_CN:
1466 case CMD_XMIT_BCAST_CX:
1467 case CMD_ELS_REQUEST_CR:
1468 case CMD_ELS_REQUEST_CX:
1469 case CMD_CREATE_XRI_CR:
1470 case CMD_CREATE_XRI_CX:
1471 case CMD_GET_RPI_CN:
1472 case CMD_XMIT_ELS_RSP_CX:
1473 case CMD_GET_RPI_CR:
1474 case CMD_FCP_IWRITE_CR:
1475 case CMD_FCP_IWRITE_CX:
1476 case CMD_FCP_IREAD_CR:
1477 case CMD_FCP_IREAD_CX:
1478 case CMD_FCP_ICMND_CR:
1479 case CMD_FCP_ICMND_CX:
1480 case CMD_FCP_TSEND_CX:
1481 case CMD_FCP_TRSP_CX:
1482 case CMD_FCP_TRECEIVE_CX:
1483 case CMD_FCP_AUTO_TRSP_CX:
1484 case CMD_ADAPTER_MSG:
1485 case CMD_ADAPTER_DUMP:
1486 case CMD_XMIT_SEQUENCE64_CR:
1487 case CMD_XMIT_SEQUENCE64_CX:
1488 case CMD_XMIT_BCAST64_CN:
1489 case CMD_XMIT_BCAST64_CX:
1490 case CMD_ELS_REQUEST64_CR:
1491 case CMD_ELS_REQUEST64_CX:
1492 case CMD_FCP_IWRITE64_CR:
1493 case CMD_FCP_IWRITE64_CX:
1494 case CMD_FCP_IREAD64_CR:
1495 case CMD_FCP_IREAD64_CX:
1496 case CMD_FCP_ICMND64_CR:
1497 case CMD_FCP_ICMND64_CX:
1498 case CMD_FCP_TSEND64_CX:
1499 case CMD_FCP_TRSP64_CX:
1500 case CMD_FCP_TRECEIVE64_CX:
1501 case CMD_GEN_REQUEST64_CR:
1502 case CMD_GEN_REQUEST64_CX:
1503 case CMD_XMIT_ELS_RSP64_CX:
1504 case DSSCMD_IWRITE64_CR:
1505 case DSSCMD_IWRITE64_CX:
1506 case DSSCMD_IREAD64_CR:
1507 case DSSCMD_IREAD64_CX:
1508 type = LPFC_SOL_IOCB;
1510 case CMD_ABORT_XRI_CN:
1511 case CMD_ABORT_XRI_CX:
1512 case CMD_CLOSE_XRI_CN:
1513 case CMD_CLOSE_XRI_CX:
1514 case CMD_XRI_ABORTED_CX:
1515 case CMD_ABORT_MXRI64_CN:
1516 case CMD_XMIT_BLS_RSP64_CX:
1517 type = LPFC_ABORT_IOCB;
1519 case CMD_RCV_SEQUENCE_CX:
1520 case CMD_RCV_ELS_REQ_CX:
1521 case CMD_RCV_SEQUENCE64_CX:
1522 case CMD_RCV_ELS_REQ64_CX:
1523 case CMD_ASYNC_STATUS:
1524 case CMD_IOCB_RCV_SEQ64_CX:
1525 case CMD_IOCB_RCV_ELS64_CX:
1526 case CMD_IOCB_RCV_CONT64_CX:
1527 case CMD_IOCB_RET_XRI64_CX:
1528 type = LPFC_UNSOL_IOCB;
1530 case CMD_IOCB_XMIT_MSEQ64_CR:
1531 case CMD_IOCB_XMIT_MSEQ64_CX:
1532 case CMD_IOCB_RCV_SEQ_LIST64_CX:
1533 case CMD_IOCB_RCV_ELS_LIST64_CX:
1534 case CMD_IOCB_CLOSE_EXTENDED_CN:
1535 case CMD_IOCB_ABORT_EXTENDED_CN:
1536 case CMD_IOCB_RET_HBQE64_CN:
1537 case CMD_IOCB_FCP_IBIDIR64_CR:
1538 case CMD_IOCB_FCP_IBIDIR64_CX:
1539 case CMD_IOCB_FCP_ITASKMGT64_CX:
1540 case CMD_IOCB_LOGENTRY_CN:
1541 case CMD_IOCB_LOGENTRY_ASYNC_CN:
1542 printk("%s - Unhandled SLI-3 Command x%x\n",
1543 __func__, iocb_cmnd);
1544 type = LPFC_UNKNOWN_IOCB;
1547 type = LPFC_UNKNOWN_IOCB;
1555 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
1556 * @phba: Pointer to HBA context object.
1558 * This function is called from SLI initialization code
1559 * to configure every ring of the HBA's SLI interface. The
1560 * caller is not required to hold any lock. This function issues
1561 * a config_ring mailbox command for each ring.
1562 * This function returns zero if successful else returns a negative
1566 lpfc_sli_ring_map(struct lpfc_hba *phba)
1568 struct lpfc_sli *psli = &phba->sli;
1573 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1577 phba->link_state = LPFC_INIT_MBX_CMDS;
1578 for (i = 0; i < psli->num_rings; i++) {
1579 lpfc_config_ring(phba, i, pmb);
1580 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
1581 if (rc != MBX_SUCCESS) {
1582 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1583 "0446 Adapter failed to init (%d), "
1584 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
1586 rc, pmbox->mbxCommand,
1587 pmbox->mbxStatus, i);
1588 phba->link_state = LPFC_HBA_ERROR;
1593 mempool_free(pmb, phba->mbox_mem_pool);
1598 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
1599 * @phba: Pointer to HBA context object.
1600 * @pring: Pointer to driver SLI ring object.
1601 * @piocb: Pointer to the driver iocb object.
1603 * The driver calls this function with the hbalock held for SLI3 ports or
1604 * the ring lock held for SLI4 ports. The function adds the
1605 * new iocb to txcmplq of the given ring. This function always returns
1606 * 0. If this function is called for ELS ring, this function checks if
1607 * there is a vport associated with the ELS command. This function also
1608 * starts els_tmofunc timer if this is an ELS command.
1611 lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1612 struct lpfc_iocbq *piocb)
1614 if (phba->sli_rev == LPFC_SLI_REV4)
1615 lockdep_assert_held(&pring->ring_lock);
1617 lockdep_assert_held(&phba->hbalock);
1621 list_add_tail(&piocb->list, &pring->txcmplq);
1622 piocb->iocb_flag |= LPFC_IO_ON_TXCMPLQ;
1623 pring->txcmplq_cnt++;
1625 if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
1626 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
1627 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
1628 BUG_ON(!piocb->vport);
1629 if (!(piocb->vport->load_flag & FC_UNLOADING))
1630 mod_timer(&piocb->vport->els_tmofunc,
1632 msecs_to_jiffies(1000 * (phba->fc_ratov << 1)));
1639 * lpfc_sli_ringtx_get - Get first element of the txq
1640 * @phba: Pointer to HBA context object.
1641 * @pring: Pointer to driver SLI ring object.
1643 * This function is called with hbalock held to get next
1644 * iocb in txq of the given ring. If there is any iocb in
1645 * the txq, the function returns first iocb in the list after
1646 * removing the iocb from the list, else it returns NULL.
1649 lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1651 struct lpfc_iocbq *cmd_iocb;
1653 lockdep_assert_held(&phba->hbalock);
1655 list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
1660 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
1661 * @phba: Pointer to HBA context object.
1662 * @pring: Pointer to driver SLI ring object.
1664 * This function is called with hbalock held and the caller must post the
1665 * iocb without releasing the lock. If the caller releases the lock,
1666 * iocb slot returned by the function is not guaranteed to be available.
1667 * The function returns pointer to the next available iocb slot if there
1668 * is available slot in the ring, else it returns NULL.
1669 * If the get index of the ring is ahead of the put index, the function
1670 * will post an error attention event to the worker thread to take the
1671 * HBA to offline state.
1674 lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1676 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
1677 uint32_t max_cmd_idx = pring->sli.sli3.numCiocb;
1679 lockdep_assert_held(&phba->hbalock);
1681 if ((pring->sli.sli3.next_cmdidx == pring->sli.sli3.cmdidx) &&
1682 (++pring->sli.sli3.next_cmdidx >= max_cmd_idx))
1683 pring->sli.sli3.next_cmdidx = 0;
1685 if (unlikely(pring->sli.sli3.local_getidx ==
1686 pring->sli.sli3.next_cmdidx)) {
1688 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
1690 if (unlikely(pring->sli.sli3.local_getidx >= max_cmd_idx)) {
1691 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1692 "0315 Ring %d issue: portCmdGet %d "
1693 "is bigger than cmd ring %d\n",
1695 pring->sli.sli3.local_getidx,
1698 phba->link_state = LPFC_HBA_ERROR;
1700 * All error attention handlers are posted to
1703 phba->work_ha |= HA_ERATT;
1704 phba->work_hs = HS_FFER3;
1706 lpfc_worker_wake_up(phba);
1711 if (pring->sli.sli3.local_getidx == pring->sli.sli3.next_cmdidx)
1715 return lpfc_cmd_iocb(phba, pring);
1719 * lpfc_sli_next_iotag - Get an iotag for the iocb
1720 * @phba: Pointer to HBA context object.
1721 * @iocbq: Pointer to driver iocb object.
1723 * This function gets an iotag for the iocb. If there is no unused iotag and
1724 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
1725 * array and assigns a new iotag.
1726 * The function returns the allocated iotag if successful, else returns zero.
1727 * Zero is not a valid iotag.
1728 * The caller is not required to hold any lock.
1731 lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1733 struct lpfc_iocbq **new_arr;
1734 struct lpfc_iocbq **old_arr;
1736 struct lpfc_sli *psli = &phba->sli;
1739 spin_lock_irq(&phba->hbalock);
1740 iotag = psli->last_iotag;
1741 if(++iotag < psli->iocbq_lookup_len) {
1742 psli->last_iotag = iotag;
1743 psli->iocbq_lookup[iotag] = iocbq;
1744 spin_unlock_irq(&phba->hbalock);
1745 iocbq->iotag = iotag;
1747 } else if (psli->iocbq_lookup_len < (0xffff
1748 - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
1749 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
1750 spin_unlock_irq(&phba->hbalock);
1751 new_arr = kcalloc(new_len, sizeof(struct lpfc_iocbq *),
1754 spin_lock_irq(&phba->hbalock);
1755 old_arr = psli->iocbq_lookup;
1756 if (new_len <= psli->iocbq_lookup_len) {
1757 /* highly unprobable case */
1759 iotag = psli->last_iotag;
1760 if(++iotag < psli->iocbq_lookup_len) {
1761 psli->last_iotag = iotag;
1762 psli->iocbq_lookup[iotag] = iocbq;
1763 spin_unlock_irq(&phba->hbalock);
1764 iocbq->iotag = iotag;
1767 spin_unlock_irq(&phba->hbalock);
1770 if (psli->iocbq_lookup)
1771 memcpy(new_arr, old_arr,
1772 ((psli->last_iotag + 1) *
1773 sizeof (struct lpfc_iocbq *)));
1774 psli->iocbq_lookup = new_arr;
1775 psli->iocbq_lookup_len = new_len;
1776 psli->last_iotag = iotag;
1777 psli->iocbq_lookup[iotag] = iocbq;
1778 spin_unlock_irq(&phba->hbalock);
1779 iocbq->iotag = iotag;
1784 spin_unlock_irq(&phba->hbalock);
1786 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
1787 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1794 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
1795 * @phba: Pointer to HBA context object.
1796 * @pring: Pointer to driver SLI ring object.
1797 * @iocb: Pointer to iocb slot in the ring.
1798 * @nextiocb: Pointer to driver iocb object which need to be
1799 * posted to firmware.
1801 * This function is called with hbalock held to post a new iocb to
1802 * the firmware. This function copies the new iocb to ring iocb slot and
1803 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1804 * a completion call back for this iocb else the function will free the
1808 lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1809 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
1811 lockdep_assert_held(&phba->hbalock);
1815 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
1818 if (pring->ringno == LPFC_ELS_RING) {
1819 lpfc_debugfs_slow_ring_trc(phba,
1820 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1821 *(((uint32_t *) &nextiocb->iocb) + 4),
1822 *(((uint32_t *) &nextiocb->iocb) + 6),
1823 *(((uint32_t *) &nextiocb->iocb) + 7));
1827 * Issue iocb command to adapter
1829 lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
1831 pring->stats.iocb_cmd++;
1834 * If there is no completion routine to call, we can release the
1835 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1836 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1838 if (nextiocb->iocb_cmpl)
1839 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
1841 __lpfc_sli_release_iocbq(phba, nextiocb);
1844 * Let the HBA know what IOCB slot will be the next one the
1845 * driver will put a command into.
1847 pring->sli.sli3.cmdidx = pring->sli.sli3.next_cmdidx;
1848 writel(pring->sli.sli3.cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
1852 * lpfc_sli_update_full_ring - Update the chip attention register
1853 * @phba: Pointer to HBA context object.
1854 * @pring: Pointer to driver SLI ring object.
1856 * The caller is not required to hold any lock for calling this function.
1857 * This function updates the chip attention bits for the ring to inform firmware
1858 * that there are pending work to be done for this ring and requests an
1859 * interrupt when there is space available in the ring. This function is
1860 * called when the driver is unable to post more iocbs to the ring due
1861 * to unavailability of space in the ring.
1864 lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1866 int ringno = pring->ringno;
1868 pring->flag |= LPFC_CALL_RING_AVAILABLE;
1873 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1874 * The HBA will tell us when an IOCB entry is available.
1876 writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
1877 readl(phba->CAregaddr); /* flush */
1879 pring->stats.iocb_cmd_full++;
1883 * lpfc_sli_update_ring - Update chip attention register
1884 * @phba: Pointer to HBA context object.
1885 * @pring: Pointer to driver SLI ring object.
1887 * This function updates the chip attention register bit for the
1888 * given ring to inform HBA that there is more work to be done
1889 * in this ring. The caller is not required to hold any lock.
1892 lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1894 int ringno = pring->ringno;
1897 * Tell the HBA that there is work to do in this ring.
1899 if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
1901 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
1902 readl(phba->CAregaddr); /* flush */
1907 * lpfc_sli_resume_iocb - Process iocbs in the txq
1908 * @phba: Pointer to HBA context object.
1909 * @pring: Pointer to driver SLI ring object.
1911 * This function is called with hbalock held to post pending iocbs
1912 * in the txq to the firmware. This function is called when driver
1913 * detects space available in the ring.
1916 lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1919 struct lpfc_iocbq *nextiocb;
1921 lockdep_assert_held(&phba->hbalock);
1925 * (a) there is anything on the txq to send
1927 * (c) link attention events can be processed (fcp ring only)
1928 * (d) IOCB processing is not blocked by the outstanding mbox command.
1931 if (lpfc_is_link_up(phba) &&
1932 (!list_empty(&pring->txq)) &&
1933 (pring->ringno != LPFC_FCP_RING ||
1934 phba->sli.sli_flag & LPFC_PROCESS_LA)) {
1936 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
1937 (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
1938 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
1941 lpfc_sli_update_ring(phba, pring);
1943 lpfc_sli_update_full_ring(phba, pring);
1950 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
1951 * @phba: Pointer to HBA context object.
1952 * @hbqno: HBQ number.
1954 * This function is called with hbalock held to get the next
1955 * available slot for the given HBQ. If there is free slot
1956 * available for the HBQ it will return pointer to the next available
1957 * HBQ entry else it will return NULL.
1959 static struct lpfc_hbq_entry *
1960 lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
1962 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1964 lockdep_assert_held(&phba->hbalock);
1966 if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
1967 ++hbqp->next_hbqPutIdx >= hbqp->entry_count)
1968 hbqp->next_hbqPutIdx = 0;
1970 if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
1971 uint32_t raw_index = phba->hbq_get[hbqno];
1972 uint32_t getidx = le32_to_cpu(raw_index);
1974 hbqp->local_hbqGetIdx = getidx;
1976 if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
1977 lpfc_printf_log(phba, KERN_ERR,
1978 LOG_SLI | LOG_VPORT,
1979 "1802 HBQ %d: local_hbqGetIdx "
1980 "%u is > than hbqp->entry_count %u\n",
1981 hbqno, hbqp->local_hbqGetIdx,
1984 phba->link_state = LPFC_HBA_ERROR;
1988 if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
1992 return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
1997 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
1998 * @phba: Pointer to HBA context object.
2000 * This function is called with no lock held to free all the
2001 * hbq buffers while uninitializing the SLI interface. It also
2002 * frees the HBQ buffers returned by the firmware but not yet
2003 * processed by the upper layers.
2006 lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
2008 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
2009 struct hbq_dmabuf *hbq_buf;
2010 unsigned long flags;
2013 hbq_count = lpfc_sli_hbq_count();
2014 /* Return all memory used by all HBQs */
2015 spin_lock_irqsave(&phba->hbalock, flags);
2016 for (i = 0; i < hbq_count; ++i) {
2017 list_for_each_entry_safe(dmabuf, next_dmabuf,
2018 &phba->hbqs[i].hbq_buffer_list, list) {
2019 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
2020 list_del(&hbq_buf->dbuf.list);
2021 (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
2023 phba->hbqs[i].buffer_count = 0;
2026 /* Mark the HBQs not in use */
2027 phba->hbq_in_use = 0;
2028 spin_unlock_irqrestore(&phba->hbalock, flags);
2032 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
2033 * @phba: Pointer to HBA context object.
2034 * @hbqno: HBQ number.
2035 * @hbq_buf: Pointer to HBQ buffer.
2037 * This function is called with the hbalock held to post a
2038 * hbq buffer to the firmware. If the function finds an empty
2039 * slot in the HBQ, it will post the buffer. The function will return
2040 * pointer to the hbq entry if it successfully post the buffer
2041 * else it will return NULL.
2044 lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
2045 struct hbq_dmabuf *hbq_buf)
2047 lockdep_assert_held(&phba->hbalock);
2048 return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
2052 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
2053 * @phba: Pointer to HBA context object.
2054 * @hbqno: HBQ number.
2055 * @hbq_buf: Pointer to HBQ buffer.
2057 * This function is called with the hbalock held to post a hbq buffer to the
2058 * firmware. If the function finds an empty slot in the HBQ, it will post the
2059 * buffer and place it on the hbq_buffer_list. The function will return zero if
2060 * it successfully post the buffer else it will return an error.
2063 lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
2064 struct hbq_dmabuf *hbq_buf)
2066 struct lpfc_hbq_entry *hbqe;
2067 dma_addr_t physaddr = hbq_buf->dbuf.phys;
2069 lockdep_assert_held(&phba->hbalock);
2070 /* Get next HBQ entry slot to use */
2071 hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
2073 struct hbq_s *hbqp = &phba->hbqs[hbqno];
2075 hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
2076 hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
2077 hbqe->bde.tus.f.bdeSize = hbq_buf->total_size;
2078 hbqe->bde.tus.f.bdeFlags = 0;
2079 hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
2080 hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
2082 hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
2083 writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
2085 readl(phba->hbq_put + hbqno);
2086 list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
2093 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
2094 * @phba: Pointer to HBA context object.
2095 * @hbqno: HBQ number.
2096 * @hbq_buf: Pointer to HBQ buffer.
2098 * This function is called with the hbalock held to post an RQE to the SLI4
2099 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
2100 * the hbq_buffer_list and return zero, otherwise it will return an error.
2103 lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
2104 struct hbq_dmabuf *hbq_buf)
2107 struct lpfc_rqe hrqe;
2108 struct lpfc_rqe drqe;
2109 struct lpfc_queue *hrq;
2110 struct lpfc_queue *drq;
2112 if (hbqno != LPFC_ELS_HBQ)
2114 hrq = phba->sli4_hba.hdr_rq;
2115 drq = phba->sli4_hba.dat_rq;
2117 lockdep_assert_held(&phba->hbalock);
2118 hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
2119 hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
2120 drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
2121 drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
2122 rc = lpfc_sli4_rq_put(hrq, drq, &hrqe, &drqe);
2125 hbq_buf->tag = (rc | (hbqno << 16));
2126 list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
2130 /* HBQ for ELS and CT traffic. */
2131 static struct lpfc_hbq_init lpfc_els_hbq = {
2136 .ring_mask = (1 << LPFC_ELS_RING),
2143 struct lpfc_hbq_init *lpfc_hbq_defs[] = {
2148 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
2149 * @phba: Pointer to HBA context object.
2150 * @hbqno: HBQ number.
2151 * @count: Number of HBQ buffers to be posted.
2153 * This function is called with no lock held to post more hbq buffers to the
2154 * given HBQ. The function returns the number of HBQ buffers successfully
2158 lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
2160 uint32_t i, posted = 0;
2161 unsigned long flags;
2162 struct hbq_dmabuf *hbq_buffer;
2163 LIST_HEAD(hbq_buf_list);
2164 if (!phba->hbqs[hbqno].hbq_alloc_buffer)
2167 if ((phba->hbqs[hbqno].buffer_count + count) >
2168 lpfc_hbq_defs[hbqno]->entry_count)
2169 count = lpfc_hbq_defs[hbqno]->entry_count -
2170 phba->hbqs[hbqno].buffer_count;
2173 /* Allocate HBQ entries */
2174 for (i = 0; i < count; i++) {
2175 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
2178 list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
2180 /* Check whether HBQ is still in use */
2181 spin_lock_irqsave(&phba->hbalock, flags);
2182 if (!phba->hbq_in_use)
2184 while (!list_empty(&hbq_buf_list)) {
2185 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
2187 hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
2189 if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
2190 phba->hbqs[hbqno].buffer_count++;
2193 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
2195 spin_unlock_irqrestore(&phba->hbalock, flags);
2198 spin_unlock_irqrestore(&phba->hbalock, flags);
2199 while (!list_empty(&hbq_buf_list)) {
2200 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
2202 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
2208 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
2209 * @phba: Pointer to HBA context object.
2212 * This function posts more buffers to the HBQ. This function
2213 * is called with no lock held. The function returns the number of HBQ entries
2214 * successfully allocated.
2217 lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
2219 if (phba->sli_rev == LPFC_SLI_REV4)
2222 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
2223 lpfc_hbq_defs[qno]->add_count);
2227 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
2228 * @phba: Pointer to HBA context object.
2229 * @qno: HBQ queue number.
2231 * This function is called from SLI initialization code path with
2232 * no lock held to post initial HBQ buffers to firmware. The
2233 * function returns the number of HBQ entries successfully allocated.
2236 lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
2238 if (phba->sli_rev == LPFC_SLI_REV4)
2239 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
2240 lpfc_hbq_defs[qno]->entry_count);
2242 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
2243 lpfc_hbq_defs[qno]->init_count);
2247 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
2248 * @phba: Pointer to HBA context object.
2249 * @hbqno: HBQ number.
2251 * This function removes the first hbq buffer on an hbq list and returns a
2252 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
2254 static struct hbq_dmabuf *
2255 lpfc_sli_hbqbuf_get(struct list_head *rb_list)
2257 struct lpfc_dmabuf *d_buf;
2259 list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
2262 return container_of(d_buf, struct hbq_dmabuf, dbuf);
2266 * lpfc_sli_rqbuf_get - Remove the first dma buffer off of an RQ list
2267 * @phba: Pointer to HBA context object.
2268 * @hbqno: HBQ number.
2270 * This function removes the first RQ buffer on an RQ buffer list and returns a
2271 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
2273 static struct rqb_dmabuf *
2274 lpfc_sli_rqbuf_get(struct lpfc_hba *phba, struct lpfc_queue *hrq)
2276 struct lpfc_dmabuf *h_buf;
2277 struct lpfc_rqb *rqbp;
2280 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
2281 struct lpfc_dmabuf, list);
2284 rqbp->buffer_count--;
2285 return container_of(h_buf, struct rqb_dmabuf, hbuf);
2289 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
2290 * @phba: Pointer to HBA context object.
2291 * @tag: Tag of the hbq buffer.
2293 * This function searches for the hbq buffer associated with the given tag in
2294 * the hbq buffer list. If it finds the hbq buffer, it returns the hbq_buffer
2295 * otherwise it returns NULL.
2297 static struct hbq_dmabuf *
2298 lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
2300 struct lpfc_dmabuf *d_buf;
2301 struct hbq_dmabuf *hbq_buf;
2305 if (hbqno >= LPFC_MAX_HBQS)
2308 spin_lock_irq(&phba->hbalock);
2309 list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
2310 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
2311 if (hbq_buf->tag == tag) {
2312 spin_unlock_irq(&phba->hbalock);
2316 spin_unlock_irq(&phba->hbalock);
2317 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT,
2318 "1803 Bad hbq tag. Data: x%x x%x\n",
2319 tag, phba->hbqs[tag >> 16].buffer_count);
2324 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
2325 * @phba: Pointer to HBA context object.
2326 * @hbq_buffer: Pointer to HBQ buffer.
2328 * This function is called with hbalock. This function gives back
2329 * the hbq buffer to firmware. If the HBQ does not have space to
2330 * post the buffer, it will free the buffer.
2333 lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
2338 hbqno = hbq_buffer->tag >> 16;
2339 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
2340 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
2345 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
2346 * @mbxCommand: mailbox command code.
2348 * This function is called by the mailbox event handler function to verify
2349 * that the completed mailbox command is a legitimate mailbox command. If the
2350 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
2351 * and the mailbox event handler will take the HBA offline.
2354 lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
2358 switch (mbxCommand) {
2362 case MBX_WRITE_VPARMS:
2363 case MBX_RUN_BIU_DIAG:
2366 case MBX_CONFIG_LINK:
2367 case MBX_CONFIG_RING:
2368 case MBX_RESET_RING:
2369 case MBX_READ_CONFIG:
2370 case MBX_READ_RCONFIG:
2371 case MBX_READ_SPARM:
2372 case MBX_READ_STATUS:
2376 case MBX_READ_LNK_STAT:
2378 case MBX_UNREG_LOGIN:
2380 case MBX_DUMP_MEMORY:
2381 case MBX_DUMP_CONTEXT:
2384 case MBX_UPDATE_CFG:
2386 case MBX_DEL_LD_ENTRY:
2387 case MBX_RUN_PROGRAM:
2389 case MBX_SET_VARIABLE:
2390 case MBX_UNREG_D_ID:
2391 case MBX_KILL_BOARD:
2392 case MBX_CONFIG_FARP:
2395 case MBX_RUN_BIU_DIAG64:
2396 case MBX_CONFIG_PORT:
2397 case MBX_READ_SPARM64:
2398 case MBX_READ_RPI64:
2399 case MBX_REG_LOGIN64:
2400 case MBX_READ_TOPOLOGY:
2403 case MBX_LOAD_EXP_ROM:
2404 case MBX_ASYNCEVT_ENABLE:
2408 case MBX_PORT_CAPABILITIES:
2409 case MBX_PORT_IOV_CONTROL:
2410 case MBX_SLI4_CONFIG:
2411 case MBX_SLI4_REQ_FTRS:
2413 case MBX_UNREG_FCFI:
2418 case MBX_RESUME_RPI:
2419 case MBX_READ_EVENT_LOG_STATUS:
2420 case MBX_READ_EVENT_LOG:
2421 case MBX_SECURITY_MGMT:
2423 case MBX_ACCESS_VDATA:
2434 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
2435 * @phba: Pointer to HBA context object.
2436 * @pmboxq: Pointer to mailbox command.
2438 * This is completion handler function for mailbox commands issued from
2439 * lpfc_sli_issue_mbox_wait function. This function is called by the
2440 * mailbox event handler function with no lock held. This function
2441 * will wake up thread waiting on the wait queue pointed by context1
2445 lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
2447 unsigned long drvr_flag;
2448 struct completion *pmbox_done;
2451 * If pmbox_done is empty, the driver thread gave up waiting and
2452 * continued running.
2454 pmboxq->mbox_flag |= LPFC_MBX_WAKE;
2455 spin_lock_irqsave(&phba->hbalock, drvr_flag);
2456 pmbox_done = (struct completion *)pmboxq->context3;
2458 complete(pmbox_done);
2459 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
2464 __lpfc_sli_rpi_release(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
2466 unsigned long iflags;
2468 if (ndlp->nlp_flag & NLP_RELEASE_RPI) {
2469 lpfc_sli4_free_rpi(vport->phba, ndlp->nlp_rpi);
2470 spin_lock_irqsave(&vport->phba->ndlp_lock, iflags);
2471 ndlp->nlp_flag &= ~NLP_RELEASE_RPI;
2472 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
2473 spin_unlock_irqrestore(&vport->phba->ndlp_lock, iflags);
2475 ndlp->nlp_flag &= ~NLP_UNREG_INP;
2479 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
2480 * @phba: Pointer to HBA context object.
2481 * @pmb: Pointer to mailbox object.
2483 * This function is the default mailbox completion handler. It
2484 * frees the memory resources associated with the completed mailbox
2485 * command. If the completed command is a REG_LOGIN mailbox command,
2486 * this function will issue a UREG_LOGIN to re-claim the RPI.
2489 lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2491 struct lpfc_vport *vport = pmb->vport;
2492 struct lpfc_dmabuf *mp;
2493 struct lpfc_nodelist *ndlp;
2494 struct Scsi_Host *shost;
2498 mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
2501 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2506 * If a REG_LOGIN succeeded after node is destroyed or node
2507 * is in re-discovery driver need to cleanup the RPI.
2509 if (!(phba->pport->load_flag & FC_UNLOADING) &&
2510 pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
2511 !pmb->u.mb.mbxStatus) {
2512 rpi = pmb->u.mb.un.varWords[0];
2513 vpi = pmb->u.mb.un.varRegLogin.vpi;
2514 lpfc_unreg_login(phba, vpi, rpi, pmb);
2516 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2517 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2518 if (rc != MBX_NOT_FINISHED)
2522 if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) &&
2523 !(phba->pport->load_flag & FC_UNLOADING) &&
2524 !pmb->u.mb.mbxStatus) {
2525 shost = lpfc_shost_from_vport(vport);
2526 spin_lock_irq(shost->host_lock);
2527 vport->vpi_state |= LPFC_VPI_REGISTERED;
2528 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
2529 spin_unlock_irq(shost->host_lock);
2532 if (pmb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
2533 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
2535 pmb->ctx_buf = NULL;
2536 pmb->ctx_ndlp = NULL;
2539 if (pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) {
2540 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
2542 /* Check to see if there are any deferred events to process */
2546 KERN_INFO, LOG_MBOX | LOG_DISCOVERY,
2547 "1438 UNREG cmpl deferred mbox x%x "
2548 "on NPort x%x Data: x%x x%x %px\n",
2549 ndlp->nlp_rpi, ndlp->nlp_DID,
2550 ndlp->nlp_flag, ndlp->nlp_defer_did, ndlp);
2552 if ((ndlp->nlp_flag & NLP_UNREG_INP) &&
2553 (ndlp->nlp_defer_did != NLP_EVT_NOTHING_PENDING)) {
2554 ndlp->nlp_flag &= ~NLP_UNREG_INP;
2555 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING;
2556 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
2558 __lpfc_sli_rpi_release(vport, ndlp);
2560 if (vport->load_flag & FC_UNLOADING)
2562 pmb->ctx_ndlp = NULL;
2566 /* Check security permission status on INIT_LINK mailbox command */
2567 if ((pmb->u.mb.mbxCommand == MBX_INIT_LINK) &&
2568 (pmb->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
2569 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2570 "2860 SLI authentication is required "
2571 "for INIT_LINK but has not done yet\n");
2573 if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
2574 lpfc_sli4_mbox_cmd_free(phba, pmb);
2576 mempool_free(pmb, phba->mbox_mem_pool);
2579 * lpfc_sli4_unreg_rpi_cmpl_clr - mailbox completion handler
2580 * @phba: Pointer to HBA context object.
2581 * @pmb: Pointer to mailbox object.
2583 * This function is the unreg rpi mailbox completion handler. It
2584 * frees the memory resources associated with the completed mailbox
2585 * command. An additional refrenece is put on the ndlp to prevent
2586 * lpfc_nlp_release from freeing the rpi bit in the bitmask before
2587 * the unreg mailbox command completes, this routine puts the
2592 lpfc_sli4_unreg_rpi_cmpl_clr(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2594 struct lpfc_vport *vport = pmb->vport;
2595 struct lpfc_nodelist *ndlp;
2597 ndlp = pmb->ctx_ndlp;
2598 if (pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) {
2599 if (phba->sli_rev == LPFC_SLI_REV4 &&
2600 (bf_get(lpfc_sli_intf_if_type,
2601 &phba->sli4_hba.sli_intf) >=
2602 LPFC_SLI_INTF_IF_TYPE_2)) {
2605 vport, KERN_INFO, LOG_MBOX | LOG_SLI,
2606 "0010 UNREG_LOGIN vpi:%x "
2607 "rpi:%x DID:%x defer x%x flg x%x "
2609 vport->vpi, ndlp->nlp_rpi,
2610 ndlp->nlp_DID, ndlp->nlp_defer_did,
2612 ndlp->nlp_usg_map, ndlp);
2613 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
2616 /* Check to see if there are any deferred
2619 if ((ndlp->nlp_flag & NLP_UNREG_INP) &&
2620 (ndlp->nlp_defer_did !=
2621 NLP_EVT_NOTHING_PENDING)) {
2623 vport, KERN_INFO, LOG_DISCOVERY,
2624 "4111 UNREG cmpl deferred "
2626 "NPort x%x Data: x%x x%px\n",
2627 ndlp->nlp_rpi, ndlp->nlp_DID,
2628 ndlp->nlp_defer_did, ndlp);
2629 ndlp->nlp_flag &= ~NLP_UNREG_INP;
2630 ndlp->nlp_defer_did =
2631 NLP_EVT_NOTHING_PENDING;
2632 lpfc_issue_els_plogi(
2633 vport, ndlp->nlp_DID, 0);
2635 __lpfc_sli_rpi_release(vport, ndlp);
2641 mempool_free(pmb, phba->mbox_mem_pool);
2645 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
2646 * @phba: Pointer to HBA context object.
2648 * This function is called with no lock held. This function processes all
2649 * the completed mailbox commands and gives it to upper layers. The interrupt
2650 * service routine processes mailbox completion interrupt and adds completed
2651 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
2652 * Worker thread call lpfc_sli_handle_mb_event, which will return the
2653 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
2654 * function returns the mailbox commands to the upper layer by calling the
2655 * completion handler function of each mailbox.
2658 lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
2665 phba->sli.slistat.mbox_event++;
2667 /* Get all completed mailboxe buffers into the cmplq */
2668 spin_lock_irq(&phba->hbalock);
2669 list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
2670 spin_unlock_irq(&phba->hbalock);
2672 /* Get a Mailbox buffer to setup mailbox commands for callback */
2674 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
2680 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
2682 lpfc_debugfs_disc_trc(pmb->vport,
2683 LPFC_DISC_TRC_MBOX_VPORT,
2684 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
2685 (uint32_t)pmbox->mbxCommand,
2686 pmbox->un.varWords[0],
2687 pmbox->un.varWords[1]);
2690 lpfc_debugfs_disc_trc(phba->pport,
2692 "MBOX cmpl: cmd:x%x mb:x%x x%x",
2693 (uint32_t)pmbox->mbxCommand,
2694 pmbox->un.varWords[0],
2695 pmbox->un.varWords[1]);
2700 * It is a fatal error if unknown mbox command completion.
2702 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
2704 /* Unknown mailbox command compl */
2705 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2706 "(%d):0323 Unknown Mailbox command "
2707 "x%x (x%x/x%x) Cmpl\n",
2708 pmb->vport ? pmb->vport->vpi :
2711 lpfc_sli_config_mbox_subsys_get(phba,
2713 lpfc_sli_config_mbox_opcode_get(phba,
2715 phba->link_state = LPFC_HBA_ERROR;
2716 phba->work_hs = HS_FFER3;
2717 lpfc_handle_eratt(phba);
2721 if (pmbox->mbxStatus) {
2722 phba->sli.slistat.mbox_stat_err++;
2723 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
2724 /* Mbox cmd cmpl error - RETRYing */
2725 lpfc_printf_log(phba, KERN_INFO,
2727 "(%d):0305 Mbox cmd cmpl "
2728 "error - RETRYing Data: x%x "
2729 "(x%x/x%x) x%x x%x x%x\n",
2730 pmb->vport ? pmb->vport->vpi :
2733 lpfc_sli_config_mbox_subsys_get(phba,
2735 lpfc_sli_config_mbox_opcode_get(phba,
2738 pmbox->un.varWords[0],
2739 pmb->vport ? pmb->vport->port_state :
2740 LPFC_VPORT_UNKNOWN);
2741 pmbox->mbxStatus = 0;
2742 pmbox->mbxOwner = OWN_HOST;
2743 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2744 if (rc != MBX_NOT_FINISHED)
2749 /* Mailbox cmd <cmd> Cmpl <cmpl> */
2750 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
2751 "(%d):0307 Mailbox cmd x%x (x%x/x%x) Cmpl %ps "
2752 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
2754 pmb->vport ? pmb->vport->vpi : 0,
2756 lpfc_sli_config_mbox_subsys_get(phba, pmb),
2757 lpfc_sli_config_mbox_opcode_get(phba, pmb),
2759 *((uint32_t *) pmbox),
2760 pmbox->un.varWords[0],
2761 pmbox->un.varWords[1],
2762 pmbox->un.varWords[2],
2763 pmbox->un.varWords[3],
2764 pmbox->un.varWords[4],
2765 pmbox->un.varWords[5],
2766 pmbox->un.varWords[6],
2767 pmbox->un.varWords[7],
2768 pmbox->un.varWords[8],
2769 pmbox->un.varWords[9],
2770 pmbox->un.varWords[10]);
2773 pmb->mbox_cmpl(phba,pmb);
2779 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
2780 * @phba: Pointer to HBA context object.
2781 * @pring: Pointer to driver SLI ring object.
2784 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
2785 * is set in the tag the buffer is posted for a particular exchange,
2786 * the function will return the buffer without replacing the buffer.
2787 * If the buffer is for unsolicited ELS or CT traffic, this function
2788 * returns the buffer and also posts another buffer to the firmware.
2790 static struct lpfc_dmabuf *
2791 lpfc_sli_get_buff(struct lpfc_hba *phba,
2792 struct lpfc_sli_ring *pring,
2795 struct hbq_dmabuf *hbq_entry;
2797 if (tag & QUE_BUFTAG_BIT)
2798 return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
2799 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
2802 return &hbq_entry->dbuf;
2806 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
2807 * @phba: Pointer to HBA context object.
2808 * @pring: Pointer to driver SLI ring object.
2809 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
2810 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
2811 * @fch_type: the type for the first frame of the sequence.
2813 * This function is called with no lock held. This function uses the r_ctl and
2814 * type of the received sequence to find the correct callback function to call
2815 * to process the sequence.
2818 lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2819 struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
2826 lpfc_nvmet_unsol_ls_event(phba, pring, saveq);
2832 /* unSolicited Responses */
2833 if (pring->prt[0].profile) {
2834 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
2835 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
2839 /* We must search, based on rctl / type
2840 for the right routine */
2841 for (i = 0; i < pring->num_mask; i++) {
2842 if ((pring->prt[i].rctl == fch_r_ctl) &&
2843 (pring->prt[i].type == fch_type)) {
2844 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
2845 (pring->prt[i].lpfc_sli_rcv_unsol_event)
2846 (phba, pring, saveq);
2854 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
2855 * @phba: Pointer to HBA context object.
2856 * @pring: Pointer to driver SLI ring object.
2857 * @saveq: Pointer to the unsolicited iocb.
2859 * This function is called with no lock held by the ring event handler
2860 * when there is an unsolicited iocb posted to the response ring by the
2861 * firmware. This function gets the buffer associated with the iocbs
2862 * and calls the event handler for the ring. This function handles both
2863 * qring buffers and hbq buffers.
2864 * When the function returns 1 the caller can free the iocb object otherwise
2865 * upper layer functions will free the iocb objects.
2868 lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2869 struct lpfc_iocbq *saveq)
2873 uint32_t Rctl, Type;
2874 struct lpfc_iocbq *iocbq;
2875 struct lpfc_dmabuf *dmzbuf;
2877 irsp = &(saveq->iocb);
2879 if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
2880 if (pring->lpfc_sli_rcv_async_status)
2881 pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
2883 lpfc_printf_log(phba,
2886 "0316 Ring %d handler: unexpected "
2887 "ASYNC_STATUS iocb received evt_code "
2890 irsp->un.asyncstat.evt_code);
2894 if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
2895 (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
2896 if (irsp->ulpBdeCount > 0) {
2897 dmzbuf = lpfc_sli_get_buff(phba, pring,
2898 irsp->un.ulpWord[3]);
2899 lpfc_in_buf_free(phba, dmzbuf);
2902 if (irsp->ulpBdeCount > 1) {
2903 dmzbuf = lpfc_sli_get_buff(phba, pring,
2904 irsp->unsli3.sli3Words[3]);
2905 lpfc_in_buf_free(phba, dmzbuf);
2908 if (irsp->ulpBdeCount > 2) {
2909 dmzbuf = lpfc_sli_get_buff(phba, pring,
2910 irsp->unsli3.sli3Words[7]);
2911 lpfc_in_buf_free(phba, dmzbuf);
2917 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
2918 if (irsp->ulpBdeCount != 0) {
2919 saveq->context2 = lpfc_sli_get_buff(phba, pring,
2920 irsp->un.ulpWord[3]);
2921 if (!saveq->context2)
2922 lpfc_printf_log(phba,
2925 "0341 Ring %d Cannot find buffer for "
2926 "an unsolicited iocb. tag 0x%x\n",
2928 irsp->un.ulpWord[3]);
2930 if (irsp->ulpBdeCount == 2) {
2931 saveq->context3 = lpfc_sli_get_buff(phba, pring,
2932 irsp->unsli3.sli3Words[7]);
2933 if (!saveq->context3)
2934 lpfc_printf_log(phba,
2937 "0342 Ring %d Cannot find buffer for an"
2938 " unsolicited iocb. tag 0x%x\n",
2940 irsp->unsli3.sli3Words[7]);
2942 list_for_each_entry(iocbq, &saveq->list, list) {
2943 irsp = &(iocbq->iocb);
2944 if (irsp->ulpBdeCount != 0) {
2945 iocbq->context2 = lpfc_sli_get_buff(phba, pring,
2946 irsp->un.ulpWord[3]);
2947 if (!iocbq->context2)
2948 lpfc_printf_log(phba,
2951 "0343 Ring %d Cannot find "
2952 "buffer for an unsolicited iocb"
2953 ". tag 0x%x\n", pring->ringno,
2954 irsp->un.ulpWord[3]);
2956 if (irsp->ulpBdeCount == 2) {
2957 iocbq->context3 = lpfc_sli_get_buff(phba, pring,
2958 irsp->unsli3.sli3Words[7]);
2959 if (!iocbq->context3)
2960 lpfc_printf_log(phba,
2963 "0344 Ring %d Cannot find "
2964 "buffer for an unsolicited "
2967 irsp->unsli3.sli3Words[7]);
2971 if (irsp->ulpBdeCount != 0 &&
2972 (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
2973 irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
2976 /* search continue save q for same XRI */
2977 list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
2978 if (iocbq->iocb.unsli3.rcvsli3.ox_id ==
2979 saveq->iocb.unsli3.rcvsli3.ox_id) {
2980 list_add_tail(&saveq->list, &iocbq->list);
2986 list_add_tail(&saveq->clist,
2987 &pring->iocb_continue_saveq);
2988 if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
2989 list_del_init(&iocbq->clist);
2991 irsp = &(saveq->iocb);
2995 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
2996 (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
2997 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
2998 Rctl = FC_RCTL_ELS_REQ;
3001 w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
3002 Rctl = w5p->hcsw.Rctl;
3003 Type = w5p->hcsw.Type;
3005 /* Firmware Workaround */
3006 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
3007 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
3008 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
3009 Rctl = FC_RCTL_ELS_REQ;
3011 w5p->hcsw.Rctl = Rctl;
3012 w5p->hcsw.Type = Type;
3016 if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
3017 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3018 "0313 Ring %d handler: unexpected Rctl x%x "
3019 "Type x%x received\n",
3020 pring->ringno, Rctl, Type);
3026 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
3027 * @phba: Pointer to HBA context object.
3028 * @pring: Pointer to driver SLI ring object.
3029 * @prspiocb: Pointer to response iocb object.
3031 * This function looks up the iocb_lookup table to get the command iocb
3032 * corresponding to the given response iocb using the iotag of the
3033 * response iocb. The driver calls this function with the hbalock held
3034 * for SLI3 ports or the ring lock held for SLI4 ports.
3035 * This function returns the command iocb object if it finds the command
3036 * iocb else returns NULL.
3038 static struct lpfc_iocbq *
3039 lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
3040 struct lpfc_sli_ring *pring,
3041 struct lpfc_iocbq *prspiocb)
3043 struct lpfc_iocbq *cmd_iocb = NULL;
3045 spinlock_t *temp_lock = NULL;
3046 unsigned long iflag = 0;
3048 if (phba->sli_rev == LPFC_SLI_REV4)
3049 temp_lock = &pring->ring_lock;
3051 temp_lock = &phba->hbalock;
3053 spin_lock_irqsave(temp_lock, iflag);
3054 iotag = prspiocb->iocb.ulpIoTag;
3056 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
3057 cmd_iocb = phba->sli.iocbq_lookup[iotag];
3058 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
3059 /* remove from txcmpl queue list */
3060 list_del_init(&cmd_iocb->list);
3061 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
3062 pring->txcmplq_cnt--;
3063 spin_unlock_irqrestore(temp_lock, iflag);
3068 spin_unlock_irqrestore(temp_lock, iflag);
3069 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3070 "0317 iotag x%x is out of "
3071 "range: max iotag x%x wd0 x%x\n",
3072 iotag, phba->sli.last_iotag,
3073 *(((uint32_t *) &prspiocb->iocb) + 7));
3078 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
3079 * @phba: Pointer to HBA context object.
3080 * @pring: Pointer to driver SLI ring object.
3083 * This function looks up the iocb_lookup table to get the command iocb
3084 * corresponding to the given iotag. The driver calls this function with
3085 * the ring lock held because this function is an SLI4 port only helper.
3086 * This function returns the command iocb object if it finds the command
3087 * iocb else returns NULL.
3089 static struct lpfc_iocbq *
3090 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
3091 struct lpfc_sli_ring *pring, uint16_t iotag)
3093 struct lpfc_iocbq *cmd_iocb = NULL;
3094 spinlock_t *temp_lock = NULL;
3095 unsigned long iflag = 0;
3097 if (phba->sli_rev == LPFC_SLI_REV4)
3098 temp_lock = &pring->ring_lock;
3100 temp_lock = &phba->hbalock;
3102 spin_lock_irqsave(temp_lock, iflag);
3103 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
3104 cmd_iocb = phba->sli.iocbq_lookup[iotag];
3105 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
3106 /* remove from txcmpl queue list */
3107 list_del_init(&cmd_iocb->list);
3108 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
3109 pring->txcmplq_cnt--;
3110 spin_unlock_irqrestore(temp_lock, iflag);
3115 spin_unlock_irqrestore(temp_lock, iflag);
3116 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3117 "0372 iotag x%x lookup error: max iotag (x%x) "
3119 iotag, phba->sli.last_iotag,
3120 cmd_iocb ? cmd_iocb->iocb_flag : 0xffff);
3125 * lpfc_sli_process_sol_iocb - process solicited iocb completion
3126 * @phba: Pointer to HBA context object.
3127 * @pring: Pointer to driver SLI ring object.
3128 * @saveq: Pointer to the response iocb to be processed.
3130 * This function is called by the ring event handler for non-fcp
3131 * rings when there is a new response iocb in the response ring.
3132 * The caller is not required to hold any locks. This function
3133 * gets the command iocb associated with the response iocb and
3134 * calls the completion handler for the command iocb. If there
3135 * is no completion handler, the function will free the resources
3136 * associated with command iocb. If the response iocb is for
3137 * an already aborted command iocb, the status of the completion
3138 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
3139 * This function always returns 1.
3142 lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3143 struct lpfc_iocbq *saveq)
3145 struct lpfc_iocbq *cmdiocbp;
3147 unsigned long iflag;
3149 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
3151 if (cmdiocbp->iocb_cmpl) {
3153 * If an ELS command failed send an event to mgmt
3156 if (saveq->iocb.ulpStatus &&
3157 (pring->ringno == LPFC_ELS_RING) &&
3158 (cmdiocbp->iocb.ulpCommand ==
3159 CMD_ELS_REQUEST64_CR))
3160 lpfc_send_els_failure_event(phba,
3164 * Post all ELS completions to the worker thread.
3165 * All other are passed to the completion callback.
3167 if (pring->ringno == LPFC_ELS_RING) {
3168 if ((phba->sli_rev < LPFC_SLI_REV4) &&
3169 (cmdiocbp->iocb_flag &
3170 LPFC_DRIVER_ABORTED)) {
3171 spin_lock_irqsave(&phba->hbalock,
3173 cmdiocbp->iocb_flag &=
3174 ~LPFC_DRIVER_ABORTED;
3175 spin_unlock_irqrestore(&phba->hbalock,
3177 saveq->iocb.ulpStatus =
3178 IOSTAT_LOCAL_REJECT;
3179 saveq->iocb.un.ulpWord[4] =
3182 /* Firmware could still be in progress
3183 * of DMAing payload, so don't free data
3184 * buffer till after a hbeat.
3186 spin_lock_irqsave(&phba->hbalock,
3188 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
3189 spin_unlock_irqrestore(&phba->hbalock,
3192 if (phba->sli_rev == LPFC_SLI_REV4) {
3193 if (saveq->iocb_flag &
3194 LPFC_EXCHANGE_BUSY) {
3195 /* Set cmdiocb flag for the
3196 * exchange busy so sgl (xri)
3197 * will not be released until
3198 * the abort xri is received
3202 &phba->hbalock, iflag);
3203 cmdiocbp->iocb_flag |=
3205 spin_unlock_irqrestore(
3206 &phba->hbalock, iflag);
3208 if (cmdiocbp->iocb_flag &
3209 LPFC_DRIVER_ABORTED) {
3211 * Clear LPFC_DRIVER_ABORTED
3212 * bit in case it was driver
3216 &phba->hbalock, iflag);
3217 cmdiocbp->iocb_flag &=
3218 ~LPFC_DRIVER_ABORTED;
3219 spin_unlock_irqrestore(
3220 &phba->hbalock, iflag);
3221 cmdiocbp->iocb.ulpStatus =
3222 IOSTAT_LOCAL_REJECT;
3223 cmdiocbp->iocb.un.ulpWord[4] =
3224 IOERR_ABORT_REQUESTED;
3226 * For SLI4, irsiocb contains
3227 * NO_XRI in sli_xritag, it
3228 * shall not affect releasing
3229 * sgl (xri) process.
3231 saveq->iocb.ulpStatus =
3232 IOSTAT_LOCAL_REJECT;
3233 saveq->iocb.un.ulpWord[4] =
3236 &phba->hbalock, iflag);
3238 LPFC_DELAY_MEM_FREE;
3239 spin_unlock_irqrestore(
3240 &phba->hbalock, iflag);
3244 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
3246 lpfc_sli_release_iocbq(phba, cmdiocbp);
3249 * Unknown initiating command based on the response iotag.
3250 * This could be the case on the ELS ring because of
3253 if (pring->ringno != LPFC_ELS_RING) {
3255 * Ring <ringno> handler: unexpected completion IoTag
3258 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3259 "0322 Ring %d handler: "
3260 "unexpected completion IoTag x%x "
3261 "Data: x%x x%x x%x x%x\n",
3263 saveq->iocb.ulpIoTag,
3264 saveq->iocb.ulpStatus,
3265 saveq->iocb.un.ulpWord[4],
3266 saveq->iocb.ulpCommand,
3267 saveq->iocb.ulpContext);
3275 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
3276 * @phba: Pointer to HBA context object.
3277 * @pring: Pointer to driver SLI ring object.
3279 * This function is called from the iocb ring event handlers when
3280 * put pointer is ahead of the get pointer for a ring. This function signal
3281 * an error attention condition to the worker thread and the worker
3282 * thread will transition the HBA to offline state.
3285 lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3287 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
3289 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
3290 * rsp ring <portRspMax>
3292 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3293 "0312 Ring %d handler: portRspPut %d "
3294 "is bigger than rsp ring %d\n",
3295 pring->ringno, le32_to_cpu(pgp->rspPutInx),
3296 pring->sli.sli3.numRiocb);
3298 phba->link_state = LPFC_HBA_ERROR;
3301 * All error attention handlers are posted to
3304 phba->work_ha |= HA_ERATT;
3305 phba->work_hs = HS_FFER3;
3307 lpfc_worker_wake_up(phba);
3313 * lpfc_poll_eratt - Error attention polling timer timeout handler
3314 * @ptr: Pointer to address of HBA context object.
3316 * This function is invoked by the Error Attention polling timer when the
3317 * timer times out. It will check the SLI Error Attention register for
3318 * possible attention events. If so, it will post an Error Attention event
3319 * and wake up worker thread to process it. Otherwise, it will set up the
3320 * Error Attention polling timer for the next poll.
3322 void lpfc_poll_eratt(struct timer_list *t)
3324 struct lpfc_hba *phba;
3326 uint64_t sli_intr, cnt;
3328 phba = from_timer(phba, t, eratt_poll);
3330 /* Here we will also keep track of interrupts per sec of the hba */
3331 sli_intr = phba->sli.slistat.sli_intr;
3333 if (phba->sli.slistat.sli_prev_intr > sli_intr)
3334 cnt = (((uint64_t)(-1) - phba->sli.slistat.sli_prev_intr) +
3337 cnt = (sli_intr - phba->sli.slistat.sli_prev_intr);
3339 /* 64-bit integer division not supported on 32-bit x86 - use do_div */
3340 do_div(cnt, phba->eratt_poll_interval);
3341 phba->sli.slistat.sli_ips = cnt;
3343 phba->sli.slistat.sli_prev_intr = sli_intr;
3345 /* Check chip HA register for error event */
3346 eratt = lpfc_sli_check_eratt(phba);
3349 /* Tell the worker thread there is work to do */
3350 lpfc_worker_wake_up(phba);
3352 /* Restart the timer for next eratt poll */
3353 mod_timer(&phba->eratt_poll,
3355 msecs_to_jiffies(1000 * phba->eratt_poll_interval));
3361 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
3362 * @phba: Pointer to HBA context object.
3363 * @pring: Pointer to driver SLI ring object.
3364 * @mask: Host attention register mask for this ring.
3366 * This function is called from the interrupt context when there is a ring
3367 * event for the fcp ring. The caller does not hold any lock.
3368 * The function processes each response iocb in the response ring until it
3369 * finds an iocb with LE bit set and chains all the iocbs up to the iocb with
3370 * LE bit set. The function will call the completion handler of the command iocb
3371 * if the response iocb indicates a completion for a command iocb or it is
3372 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
3373 * function if this is an unsolicited iocb.
3374 * This routine presumes LPFC_FCP_RING handling and doesn't bother
3375 * to check it explicitly.
3378 lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
3379 struct lpfc_sli_ring *pring, uint32_t mask)
3381 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
3382 IOCB_t *irsp = NULL;
3383 IOCB_t *entry = NULL;
3384 struct lpfc_iocbq *cmdiocbq = NULL;
3385 struct lpfc_iocbq rspiocbq;
3387 uint32_t portRspPut, portRspMax;
3389 lpfc_iocb_type type;
3390 unsigned long iflag;
3391 uint32_t rsp_cmpl = 0;
3393 spin_lock_irqsave(&phba->hbalock, iflag);
3394 pring->stats.iocb_event++;
3397 * The next available response entry should never exceed the maximum
3398 * entries. If it does, treat it as an adapter hardware error.
3400 portRspMax = pring->sli.sli3.numRiocb;
3401 portRspPut = le32_to_cpu(pgp->rspPutInx);
3402 if (unlikely(portRspPut >= portRspMax)) {
3403 lpfc_sli_rsp_pointers_error(phba, pring);
3404 spin_unlock_irqrestore(&phba->hbalock, iflag);
3407 if (phba->fcp_ring_in_use) {
3408 spin_unlock_irqrestore(&phba->hbalock, iflag);
3411 phba->fcp_ring_in_use = 1;
3414 while (pring->sli.sli3.rspidx != portRspPut) {
3416 * Fetch an entry off the ring and copy it into a local data
3417 * structure. The copy involves a byte-swap since the
3418 * network byte order and pci byte orders are different.
3420 entry = lpfc_resp_iocb(phba, pring);
3421 phba->last_completion_time = jiffies;
3423 if (++pring->sli.sli3.rspidx >= portRspMax)
3424 pring->sli.sli3.rspidx = 0;
3426 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
3427 (uint32_t *) &rspiocbq.iocb,
3428 phba->iocb_rsp_size);
3429 INIT_LIST_HEAD(&(rspiocbq.list));
3430 irsp = &rspiocbq.iocb;
3432 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
3433 pring->stats.iocb_rsp++;
3436 if (unlikely(irsp->ulpStatus)) {
3438 * If resource errors reported from HBA, reduce
3439 * queuedepths of the SCSI device.
3441 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3442 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3443 IOERR_NO_RESOURCES)) {
3444 spin_unlock_irqrestore(&phba->hbalock, iflag);
3445 phba->lpfc_rampdown_queue_depth(phba);
3446 spin_lock_irqsave(&phba->hbalock, iflag);
3449 /* Rsp ring <ringno> error: IOCB */
3450 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3451 "0336 Rsp Ring %d error: IOCB Data: "
3452 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
3454 irsp->un.ulpWord[0],
3455 irsp->un.ulpWord[1],
3456 irsp->un.ulpWord[2],
3457 irsp->un.ulpWord[3],
3458 irsp->un.ulpWord[4],
3459 irsp->un.ulpWord[5],
3460 *(uint32_t *)&irsp->un1,
3461 *((uint32_t *)&irsp->un1 + 1));
3465 case LPFC_ABORT_IOCB:
3468 * Idle exchange closed via ABTS from port. No iocb
3469 * resources need to be recovered.
3471 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
3472 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3473 "0333 IOCB cmd 0x%x"
3474 " processed. Skipping"
3480 spin_unlock_irqrestore(&phba->hbalock, iflag);
3481 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
3483 spin_lock_irqsave(&phba->hbalock, iflag);
3484 if (unlikely(!cmdiocbq))
3486 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED)
3487 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
3488 if (cmdiocbq->iocb_cmpl) {
3489 spin_unlock_irqrestore(&phba->hbalock, iflag);
3490 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
3492 spin_lock_irqsave(&phba->hbalock, iflag);
3495 case LPFC_UNSOL_IOCB:
3496 spin_unlock_irqrestore(&phba->hbalock, iflag);
3497 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
3498 spin_lock_irqsave(&phba->hbalock, iflag);
3501 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3502 char adaptermsg[LPFC_MAX_ADPTMSG];
3503 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3504 memcpy(&adaptermsg[0], (uint8_t *) irsp,
3506 dev_warn(&((phba->pcidev)->dev),
3508 phba->brd_no, adaptermsg);
3510 /* Unknown IOCB command */
3511 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3512 "0334 Unknown IOCB command "
3513 "Data: x%x, x%x x%x x%x x%x\n",
3514 type, irsp->ulpCommand,
3523 * The response IOCB has been processed. Update the ring
3524 * pointer in SLIM. If the port response put pointer has not
3525 * been updated, sync the pgp->rspPutInx and fetch the new port
3526 * response put pointer.
3528 writel(pring->sli.sli3.rspidx,
3529 &phba->host_gp[pring->ringno].rspGetInx);
3531 if (pring->sli.sli3.rspidx == portRspPut)
3532 portRspPut = le32_to_cpu(pgp->rspPutInx);
3535 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
3536 pring->stats.iocb_rsp_full++;
3537 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3538 writel(status, phba->CAregaddr);
3539 readl(phba->CAregaddr);
3541 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3542 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3543 pring->stats.iocb_cmd_empty++;
3545 /* Force update of the local copy of cmdGetInx */
3546 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3547 lpfc_sli_resume_iocb(phba, pring);
3549 if ((pring->lpfc_sli_cmd_available))
3550 (pring->lpfc_sli_cmd_available) (phba, pring);
3554 phba->fcp_ring_in_use = 0;
3555 spin_unlock_irqrestore(&phba->hbalock, iflag);
3560 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
3561 * @phba: Pointer to HBA context object.
3562 * @pring: Pointer to driver SLI ring object.
3563 * @rspiocbp: Pointer to driver response IOCB object.
3565 * This function is called from the worker thread when there is a slow-path
3566 * response IOCB to process. This function chains all the response iocbs until
3567 * seeing the iocb with the LE bit set. The function will call
3568 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
3569 * completion of a command iocb. The function will call the
3570 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
3571 * The function frees the resources or calls the completion handler if this
3572 * iocb is an abort completion. The function returns NULL when the response
3573 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
3574 * this function shall chain the iocb on to the iocb_continueq and return the
3575 * response iocb passed in.
3577 static struct lpfc_iocbq *
3578 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3579 struct lpfc_iocbq *rspiocbp)
3581 struct lpfc_iocbq *saveq;
3582 struct lpfc_iocbq *cmdiocbp;
3583 struct lpfc_iocbq *next_iocb;
3584 IOCB_t *irsp = NULL;
3585 uint32_t free_saveq;
3586 uint8_t iocb_cmd_type;
3587 lpfc_iocb_type type;
3588 unsigned long iflag;
3591 spin_lock_irqsave(&phba->hbalock, iflag);
3592 /* First add the response iocb to the countinueq list */
3593 list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
3594 pring->iocb_continueq_cnt++;
3596 /* Now, determine whether the list is completed for processing */
3597 irsp = &rspiocbp->iocb;
3600 * By default, the driver expects to free all resources
3601 * associated with this iocb completion.
3604 saveq = list_get_first(&pring->iocb_continueq,
3605 struct lpfc_iocbq, list);
3606 irsp = &(saveq->iocb);
3607 list_del_init(&pring->iocb_continueq);
3608 pring->iocb_continueq_cnt = 0;
3610 pring->stats.iocb_rsp++;
3613 * If resource errors reported from HBA, reduce
3614 * queuedepths of the SCSI device.
3616 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3617 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3618 IOERR_NO_RESOURCES)) {
3619 spin_unlock_irqrestore(&phba->hbalock, iflag);
3620 phba->lpfc_rampdown_queue_depth(phba);
3621 spin_lock_irqsave(&phba->hbalock, iflag);
3624 if (irsp->ulpStatus) {
3625 /* Rsp ring <ringno> error: IOCB */
3626 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3627 "0328 Rsp Ring %d error: "
3632 "x%x x%x x%x x%x\n",
3634 irsp->un.ulpWord[0],
3635 irsp->un.ulpWord[1],
3636 irsp->un.ulpWord[2],
3637 irsp->un.ulpWord[3],
3638 irsp->un.ulpWord[4],
3639 irsp->un.ulpWord[5],
3640 *(((uint32_t *) irsp) + 6),
3641 *(((uint32_t *) irsp) + 7),
3642 *(((uint32_t *) irsp) + 8),
3643 *(((uint32_t *) irsp) + 9),
3644 *(((uint32_t *) irsp) + 10),
3645 *(((uint32_t *) irsp) + 11),
3646 *(((uint32_t *) irsp) + 12),
3647 *(((uint32_t *) irsp) + 13),
3648 *(((uint32_t *) irsp) + 14),
3649 *(((uint32_t *) irsp) + 15));
3653 * Fetch the IOCB command type and call the correct completion
3654 * routine. Solicited and Unsolicited IOCBs on the ELS ring
3655 * get freed back to the lpfc_iocb_list by the discovery
3658 iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
3659 type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
3662 spin_unlock_irqrestore(&phba->hbalock, iflag);
3663 rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
3664 spin_lock_irqsave(&phba->hbalock, iflag);
3667 case LPFC_UNSOL_IOCB:
3668 spin_unlock_irqrestore(&phba->hbalock, iflag);
3669 rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
3670 spin_lock_irqsave(&phba->hbalock, iflag);
3675 case LPFC_ABORT_IOCB:
3677 if (irsp->ulpCommand != CMD_XRI_ABORTED_CX) {
3678 spin_unlock_irqrestore(&phba->hbalock, iflag);
3679 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
3681 spin_lock_irqsave(&phba->hbalock, iflag);
3684 /* Call the specified completion routine */
3685 if (cmdiocbp->iocb_cmpl) {
3686 spin_unlock_irqrestore(&phba->hbalock,
3688 (cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
3690 spin_lock_irqsave(&phba->hbalock,
3693 __lpfc_sli_release_iocbq(phba,
3698 case LPFC_UNKNOWN_IOCB:
3699 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3700 char adaptermsg[LPFC_MAX_ADPTMSG];
3701 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3702 memcpy(&adaptermsg[0], (uint8_t *)irsp,
3704 dev_warn(&((phba->pcidev)->dev),
3706 phba->brd_no, adaptermsg);
3708 /* Unknown IOCB command */
3709 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3710 "0335 Unknown IOCB "
3711 "command Data: x%x "
3722 list_for_each_entry_safe(rspiocbp, next_iocb,
3723 &saveq->list, list) {
3724 list_del_init(&rspiocbp->list);
3725 __lpfc_sli_release_iocbq(phba, rspiocbp);
3727 __lpfc_sli_release_iocbq(phba, saveq);
3731 spin_unlock_irqrestore(&phba->hbalock, iflag);
3736 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
3737 * @phba: Pointer to HBA context object.
3738 * @pring: Pointer to driver SLI ring object.
3739 * @mask: Host attention register mask for this ring.
3741 * This routine wraps the actual slow_ring event process routine from the
3742 * API jump table function pointer from the lpfc_hba struct.
3745 lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
3746 struct lpfc_sli_ring *pring, uint32_t mask)
3748 phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
3752 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
3753 * @phba: Pointer to HBA context object.
3754 * @pring: Pointer to driver SLI ring object.
3755 * @mask: Host attention register mask for this ring.
3757 * This function is called from the worker thread when there is a ring event
3758 * for non-fcp rings. The caller does not hold any lock. The function will
3759 * remove each response iocb in the response ring and calls the handle
3760 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3763 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
3764 struct lpfc_sli_ring *pring, uint32_t mask)
3766 struct lpfc_pgp *pgp;
3768 IOCB_t *irsp = NULL;
3769 struct lpfc_iocbq *rspiocbp = NULL;
3770 uint32_t portRspPut, portRspMax;
3771 unsigned long iflag;
3774 pgp = &phba->port_gp[pring->ringno];
3775 spin_lock_irqsave(&phba->hbalock, iflag);
3776 pring->stats.iocb_event++;
3779 * The next available response entry should never exceed the maximum
3780 * entries. If it does, treat it as an adapter hardware error.
3782 portRspMax = pring->sli.sli3.numRiocb;
3783 portRspPut = le32_to_cpu(pgp->rspPutInx);
3784 if (portRspPut >= portRspMax) {
3786 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
3787 * rsp ring <portRspMax>
3789 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3790 "0303 Ring %d handler: portRspPut %d "
3791 "is bigger than rsp ring %d\n",
3792 pring->ringno, portRspPut, portRspMax);
3794 phba->link_state = LPFC_HBA_ERROR;
3795 spin_unlock_irqrestore(&phba->hbalock, iflag);
3797 phba->work_hs = HS_FFER3;
3798 lpfc_handle_eratt(phba);
3804 while (pring->sli.sli3.rspidx != portRspPut) {
3806 * Build a completion list and call the appropriate handler.
3807 * The process is to get the next available response iocb, get
3808 * a free iocb from the list, copy the response data into the
3809 * free iocb, insert to the continuation list, and update the
3810 * next response index to slim. This process makes response
3811 * iocb's in the ring available to DMA as fast as possible but
3812 * pays a penalty for a copy operation. Since the iocb is
3813 * only 32 bytes, this penalty is considered small relative to
3814 * the PCI reads for register values and a slim write. When
3815 * the ulpLe field is set, the entire Command has been
3818 entry = lpfc_resp_iocb(phba, pring);
3820 phba->last_completion_time = jiffies;
3821 rspiocbp = __lpfc_sli_get_iocbq(phba);
3822 if (rspiocbp == NULL) {
3823 printk(KERN_ERR "%s: out of buffers! Failing "
3824 "completion.\n", __func__);
3828 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
3829 phba->iocb_rsp_size);
3830 irsp = &rspiocbp->iocb;
3832 if (++pring->sli.sli3.rspidx >= portRspMax)
3833 pring->sli.sli3.rspidx = 0;
3835 if (pring->ringno == LPFC_ELS_RING) {
3836 lpfc_debugfs_slow_ring_trc(phba,
3837 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
3838 *(((uint32_t *) irsp) + 4),
3839 *(((uint32_t *) irsp) + 6),
3840 *(((uint32_t *) irsp) + 7));
3843 writel(pring->sli.sli3.rspidx,
3844 &phba->host_gp[pring->ringno].rspGetInx);
3846 spin_unlock_irqrestore(&phba->hbalock, iflag);
3847 /* Handle the response IOCB */
3848 rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
3849 spin_lock_irqsave(&phba->hbalock, iflag);
3852 * If the port response put pointer has not been updated, sync
3853 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
3854 * response put pointer.
3856 if (pring->sli.sli3.rspidx == portRspPut) {
3857 portRspPut = le32_to_cpu(pgp->rspPutInx);
3859 } /* while (pring->sli.sli3.rspidx != portRspPut) */
3861 if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
3862 /* At least one response entry has been freed */
3863 pring->stats.iocb_rsp_full++;
3864 /* SET RxRE_RSP in Chip Att register */
3865 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3866 writel(status, phba->CAregaddr);
3867 readl(phba->CAregaddr); /* flush */
3869 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3870 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3871 pring->stats.iocb_cmd_empty++;
3873 /* Force update of the local copy of cmdGetInx */
3874 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3875 lpfc_sli_resume_iocb(phba, pring);
3877 if ((pring->lpfc_sli_cmd_available))
3878 (pring->lpfc_sli_cmd_available) (phba, pring);
3882 spin_unlock_irqrestore(&phba->hbalock, iflag);
3887 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
3888 * @phba: Pointer to HBA context object.
3889 * @pring: Pointer to driver SLI ring object.
3890 * @mask: Host attention register mask for this ring.
3892 * This function is called from the worker thread when there is a pending
3893 * ELS response iocb on the driver internal slow-path response iocb worker
3894 * queue. The caller does not hold any lock. The function will remove each
3895 * response iocb from the response worker queue and calls the handle
3896 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3899 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
3900 struct lpfc_sli_ring *pring, uint32_t mask)
3902 struct lpfc_iocbq *irspiocbq;
3903 struct hbq_dmabuf *dmabuf;
3904 struct lpfc_cq_event *cq_event;
3905 unsigned long iflag;
3908 spin_lock_irqsave(&phba->hbalock, iflag);
3909 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
3910 spin_unlock_irqrestore(&phba->hbalock, iflag);
3911 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
3912 /* Get the response iocb from the head of work queue */
3913 spin_lock_irqsave(&phba->hbalock, iflag);
3914 list_remove_head(&phba->sli4_hba.sp_queue_event,
3915 cq_event, struct lpfc_cq_event, list);
3916 spin_unlock_irqrestore(&phba->hbalock, iflag);
3918 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
3919 case CQE_CODE_COMPL_WQE:
3920 irspiocbq = container_of(cq_event, struct lpfc_iocbq,
3922 /* Translate ELS WCQE to response IOCBQ */
3923 irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba,
3926 lpfc_sli_sp_handle_rspiocb(phba, pring,
3930 case CQE_CODE_RECEIVE:
3931 case CQE_CODE_RECEIVE_V1:
3932 dmabuf = container_of(cq_event, struct hbq_dmabuf,
3934 lpfc_sli4_handle_received_buffer(phba, dmabuf);
3941 /* Limit the number of events to 64 to avoid soft lockups */
3948 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
3949 * @phba: Pointer to HBA context object.
3950 * @pring: Pointer to driver SLI ring object.
3952 * This function aborts all iocbs in the given ring and frees all the iocb
3953 * objects in txq. This function issues an abort iocb for all the iocb commands
3954 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3955 * the return of this function. The caller is not required to hold any locks.
3958 lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3960 LIST_HEAD(completions);
3961 struct lpfc_iocbq *iocb, *next_iocb;
3963 if (pring->ringno == LPFC_ELS_RING) {
3964 lpfc_fabric_abort_hba(phba);
3967 /* Error everything on txq and txcmplq
3970 if (phba->sli_rev >= LPFC_SLI_REV4) {
3971 spin_lock_irq(&pring->ring_lock);
3972 list_splice_init(&pring->txq, &completions);
3974 spin_unlock_irq(&pring->ring_lock);
3976 spin_lock_irq(&phba->hbalock);
3977 /* Next issue ABTS for everything on the txcmplq */
3978 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3979 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3980 spin_unlock_irq(&phba->hbalock);
3982 spin_lock_irq(&phba->hbalock);
3983 list_splice_init(&pring->txq, &completions);
3986 /* Next issue ABTS for everything on the txcmplq */
3987 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3988 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3989 spin_unlock_irq(&phba->hbalock);
3992 /* Cancel all the IOCBs from the completions list */
3993 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3998 * lpfc_sli_abort_fcp_rings - Abort all iocbs in all FCP rings
3999 * @phba: Pointer to HBA context object.
4000 * @pring: Pointer to driver SLI ring object.
4002 * This function aborts all iocbs in FCP rings and frees all the iocb
4003 * objects in txq. This function issues an abort iocb for all the iocb commands
4004 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
4005 * the return of this function. The caller is not required to hold any locks.
4008 lpfc_sli_abort_fcp_rings(struct lpfc_hba *phba)
4010 struct lpfc_sli *psli = &phba->sli;
4011 struct lpfc_sli_ring *pring;
4014 /* Look on all the FCP Rings for the iotag */
4015 if (phba->sli_rev >= LPFC_SLI_REV4) {
4016 for (i = 0; i < phba->cfg_hdw_queue; i++) {
4017 pring = phba->sli4_hba.hdwq[i].io_wq->pring;
4018 lpfc_sli_abort_iocb_ring(phba, pring);
4021 pring = &psli->sli3_ring[LPFC_FCP_RING];
4022 lpfc_sli_abort_iocb_ring(phba, pring);
4027 * lpfc_sli_flush_io_rings - flush all iocbs in the IO ring
4028 * @phba: Pointer to HBA context object.
4030 * This function flushes all iocbs in the IO ring and frees all the iocb
4031 * objects in txq and txcmplq. This function will not issue abort iocbs
4032 * for all the iocb commands in txcmplq, they will just be returned with
4033 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
4034 * slot has been permanently disabled.
4037 lpfc_sli_flush_io_rings(struct lpfc_hba *phba)
4041 struct lpfc_sli *psli = &phba->sli;
4042 struct lpfc_sli_ring *pring;
4044 struct lpfc_iocbq *piocb, *next_iocb;
4046 spin_lock_irq(&phba->hbalock);
4047 /* Indicate the I/O queues are flushed */
4048 phba->hba_flag |= HBA_IOQ_FLUSH;
4049 spin_unlock_irq(&phba->hbalock);
4051 /* Look on all the FCP Rings for the iotag */
4052 if (phba->sli_rev >= LPFC_SLI_REV4) {
4053 for (i = 0; i < phba->cfg_hdw_queue; i++) {
4054 pring = phba->sli4_hba.hdwq[i].io_wq->pring;
4056 spin_lock_irq(&pring->ring_lock);
4057 /* Retrieve everything on txq */
4058 list_splice_init(&pring->txq, &txq);
4059 list_for_each_entry_safe(piocb, next_iocb,
4060 &pring->txcmplq, list)
4061 piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
4062 /* Retrieve everything on the txcmplq */
4063 list_splice_init(&pring->txcmplq, &txcmplq);
4065 pring->txcmplq_cnt = 0;
4066 spin_unlock_irq(&pring->ring_lock);
4069 lpfc_sli_cancel_iocbs(phba, &txq,
4070 IOSTAT_LOCAL_REJECT,
4072 /* Flush the txcmpq */
4073 lpfc_sli_cancel_iocbs(phba, &txcmplq,
4074 IOSTAT_LOCAL_REJECT,
4078 pring = &psli->sli3_ring[LPFC_FCP_RING];
4080 spin_lock_irq(&phba->hbalock);
4081 /* Retrieve everything on txq */
4082 list_splice_init(&pring->txq, &txq);
4083 list_for_each_entry_safe(piocb, next_iocb,
4084 &pring->txcmplq, list)
4085 piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
4086 /* Retrieve everything on the txcmplq */
4087 list_splice_init(&pring->txcmplq, &txcmplq);
4089 pring->txcmplq_cnt = 0;
4090 spin_unlock_irq(&phba->hbalock);
4093 lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
4095 /* Flush the txcmpq */
4096 lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
4102 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
4103 * @phba: Pointer to HBA context object.
4104 * @mask: Bit mask to be checked.
4106 * This function reads the host status register and compares
4107 * with the provided bit mask to check if HBA completed
4108 * the restart. This function will wait in a loop for the
4109 * HBA to complete restart. If the HBA does not restart within
4110 * 15 iterations, the function will reset the HBA again. The
4111 * function returns 1 when HBA fail to restart otherwise returns
4115 lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
4121 /* Read the HBA Host Status Register */
4122 if (lpfc_readl(phba->HSregaddr, &status))
4126 * Check status register every 100ms for 5 retries, then every
4127 * 500ms for 5, then every 2.5 sec for 5, then reset board and
4128 * every 2.5 sec for 4.
4129 * Break our of the loop if errors occurred during init.
4131 while (((status & mask) != mask) &&
4132 !(status & HS_FFERM) &&
4144 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4145 lpfc_sli_brdrestart(phba);
4147 /* Read the HBA Host Status Register */
4148 if (lpfc_readl(phba->HSregaddr, &status)) {
4154 /* Check to see if any errors occurred during init */
4155 if ((status & HS_FFERM) || (i >= 20)) {
4156 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4157 "2751 Adapter failed to restart, "
4158 "status reg x%x, FW Data: A8 x%x AC x%x\n",
4160 readl(phba->MBslimaddr + 0xa8),
4161 readl(phba->MBslimaddr + 0xac));
4162 phba->link_state = LPFC_HBA_ERROR;
4170 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
4171 * @phba: Pointer to HBA context object.
4172 * @mask: Bit mask to be checked.
4174 * This function checks the host status register to check if HBA is
4175 * ready. This function will wait in a loop for the HBA to be ready
4176 * If the HBA is not ready , the function will will reset the HBA PCI
4177 * function again. The function returns 1 when HBA fail to be ready
4178 * otherwise returns zero.
4181 lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
4186 /* Read the HBA Host Status Register */
4187 status = lpfc_sli4_post_status_check(phba);
4190 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4191 lpfc_sli_brdrestart(phba);
4192 status = lpfc_sli4_post_status_check(phba);
4195 /* Check to see if any errors occurred during init */
4197 phba->link_state = LPFC_HBA_ERROR;
4200 phba->sli4_hba.intr_enable = 0;
4206 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
4207 * @phba: Pointer to HBA context object.
4208 * @mask: Bit mask to be checked.
4210 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
4211 * from the API jump table function pointer from the lpfc_hba struct.
4214 lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
4216 return phba->lpfc_sli_brdready(phba, mask);
4219 #define BARRIER_TEST_PATTERN (0xdeadbeef)
4222 * lpfc_reset_barrier - Make HBA ready for HBA reset
4223 * @phba: Pointer to HBA context object.
4225 * This function is called before resetting an HBA. This function is called
4226 * with hbalock held and requests HBA to quiesce DMAs before a reset.
4228 void lpfc_reset_barrier(struct lpfc_hba *phba)
4230 uint32_t __iomem *resp_buf;
4231 uint32_t __iomem *mbox_buf;
4232 volatile uint32_t mbox;
4233 uint32_t hc_copy, ha_copy, resp_data;
4237 lockdep_assert_held(&phba->hbalock);
4239 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
4240 if (hdrtype != 0x80 ||
4241 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
4242 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
4246 * Tell the other part of the chip to suspend temporarily all
4249 resp_buf = phba->MBslimaddr;
4251 /* Disable the error attention */
4252 if (lpfc_readl(phba->HCregaddr, &hc_copy))
4254 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
4255 readl(phba->HCregaddr); /* flush */
4256 phba->link_flag |= LS_IGNORE_ERATT;
4258 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4260 if (ha_copy & HA_ERATT) {
4261 /* Clear Chip error bit */
4262 writel(HA_ERATT, phba->HAregaddr);
4263 phba->pport->stopped = 1;
4267 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
4268 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
4270 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
4271 mbox_buf = phba->MBslimaddr;
4272 writel(mbox, mbox_buf);
4274 for (i = 0; i < 50; i++) {
4275 if (lpfc_readl((resp_buf + 1), &resp_data))
4277 if (resp_data != ~(BARRIER_TEST_PATTERN))
4283 if (lpfc_readl((resp_buf + 1), &resp_data))
4285 if (resp_data != ~(BARRIER_TEST_PATTERN)) {
4286 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
4287 phba->pport->stopped)
4293 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
4295 for (i = 0; i < 500; i++) {
4296 if (lpfc_readl(resp_buf, &resp_data))
4298 if (resp_data != mbox)
4307 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4309 if (!(ha_copy & HA_ERATT))
4315 if (readl(phba->HAregaddr) & HA_ERATT) {
4316 writel(HA_ERATT, phba->HAregaddr);
4317 phba->pport->stopped = 1;
4321 phba->link_flag &= ~LS_IGNORE_ERATT;
4322 writel(hc_copy, phba->HCregaddr);
4323 readl(phba->HCregaddr); /* flush */
4327 * lpfc_sli_brdkill - Issue a kill_board mailbox command
4328 * @phba: Pointer to HBA context object.
4330 * This function issues a kill_board mailbox command and waits for
4331 * the error attention interrupt. This function is called for stopping
4332 * the firmware processing. The caller is not required to hold any
4333 * locks. This function calls lpfc_hba_down_post function to free
4334 * any pending commands after the kill. The function will return 1 when it
4335 * fails to kill the board else will return 0.
4338 lpfc_sli_brdkill(struct lpfc_hba *phba)
4340 struct lpfc_sli *psli;
4350 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4351 "0329 Kill HBA Data: x%x x%x\n",
4352 phba->pport->port_state, psli->sli_flag);
4354 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4358 /* Disable the error attention */
4359 spin_lock_irq(&phba->hbalock);
4360 if (lpfc_readl(phba->HCregaddr, &status)) {
4361 spin_unlock_irq(&phba->hbalock);
4362 mempool_free(pmb, phba->mbox_mem_pool);
4365 status &= ~HC_ERINT_ENA;
4366 writel(status, phba->HCregaddr);
4367 readl(phba->HCregaddr); /* flush */
4368 phba->link_flag |= LS_IGNORE_ERATT;
4369 spin_unlock_irq(&phba->hbalock);
4371 lpfc_kill_board(phba, pmb);
4372 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4373 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4375 if (retval != MBX_SUCCESS) {
4376 if (retval != MBX_BUSY)
4377 mempool_free(pmb, phba->mbox_mem_pool);
4378 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4379 "2752 KILL_BOARD command failed retval %d\n",
4381 spin_lock_irq(&phba->hbalock);
4382 phba->link_flag &= ~LS_IGNORE_ERATT;
4383 spin_unlock_irq(&phba->hbalock);
4387 spin_lock_irq(&phba->hbalock);
4388 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
4389 spin_unlock_irq(&phba->hbalock);
4391 mempool_free(pmb, phba->mbox_mem_pool);
4393 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
4394 * attention every 100ms for 3 seconds. If we don't get ERATT after
4395 * 3 seconds we still set HBA_ERROR state because the status of the
4396 * board is now undefined.
4398 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4400 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
4402 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4406 del_timer_sync(&psli->mbox_tmo);
4407 if (ha_copy & HA_ERATT) {
4408 writel(HA_ERATT, phba->HAregaddr);
4409 phba->pport->stopped = 1;
4411 spin_lock_irq(&phba->hbalock);
4412 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4413 psli->mbox_active = NULL;
4414 phba->link_flag &= ~LS_IGNORE_ERATT;
4415 spin_unlock_irq(&phba->hbalock);
4417 lpfc_hba_down_post(phba);
4418 phba->link_state = LPFC_HBA_ERROR;
4420 return ha_copy & HA_ERATT ? 0 : 1;
4424 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
4425 * @phba: Pointer to HBA context object.
4427 * This function resets the HBA by writing HC_INITFF to the control
4428 * register. After the HBA resets, this function resets all the iocb ring
4429 * indices. This function disables PCI layer parity checking during
4431 * This function returns 0 always.
4432 * The caller is not required to hold any locks.
4435 lpfc_sli_brdreset(struct lpfc_hba *phba)
4437 struct lpfc_sli *psli;
4438 struct lpfc_sli_ring *pring;
4445 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4446 "0325 Reset HBA Data: x%x x%x\n",
4447 (phba->pport) ? phba->pport->port_state : 0,
4450 /* perform board reset */
4451 phba->fc_eventTag = 0;
4452 phba->link_events = 0;
4454 phba->pport->fc_myDID = 0;
4455 phba->pport->fc_prevDID = 0;
4458 /* Turn off parity checking and serr during the physical reset */
4459 if (pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value))
4462 pci_write_config_word(phba->pcidev, PCI_COMMAND,
4464 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4466 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
4468 /* Now toggle INITFF bit in the Host Control Register */
4469 writel(HC_INITFF, phba->HCregaddr);
4471 readl(phba->HCregaddr); /* flush */
4472 writel(0, phba->HCregaddr);
4473 readl(phba->HCregaddr); /* flush */
4475 /* Restore PCI cmd register */
4476 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
4478 /* Initialize relevant SLI info */
4479 for (i = 0; i < psli->num_rings; i++) {
4480 pring = &psli->sli3_ring[i];
4482 pring->sli.sli3.rspidx = 0;
4483 pring->sli.sli3.next_cmdidx = 0;
4484 pring->sli.sli3.local_getidx = 0;
4485 pring->sli.sli3.cmdidx = 0;
4486 pring->missbufcnt = 0;
4489 phba->link_state = LPFC_WARM_START;
4494 * lpfc_sli4_brdreset - Reset a sli-4 HBA
4495 * @phba: Pointer to HBA context object.
4497 * This function resets a SLI4 HBA. This function disables PCI layer parity
4498 * checking during resets the device. The caller is not required to hold
4501 * This function returns 0 on success else returns negative error code.
4504 lpfc_sli4_brdreset(struct lpfc_hba *phba)
4506 struct lpfc_sli *psli = &phba->sli;
4511 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4512 "0295 Reset HBA Data: x%x x%x x%x\n",
4513 phba->pport->port_state, psli->sli_flag,
4516 /* perform board reset */
4517 phba->fc_eventTag = 0;
4518 phba->link_events = 0;
4519 phba->pport->fc_myDID = 0;
4520 phba->pport->fc_prevDID = 0;
4522 spin_lock_irq(&phba->hbalock);
4523 psli->sli_flag &= ~(LPFC_PROCESS_LA);
4524 phba->fcf.fcf_flag = 0;
4525 spin_unlock_irq(&phba->hbalock);
4527 /* SLI4 INTF 2: if FW dump is being taken skip INIT_PORT */
4528 if (phba->hba_flag & HBA_FW_DUMP_OP) {
4529 phba->hba_flag &= ~HBA_FW_DUMP_OP;
4533 /* Now physically reset the device */
4534 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4535 "0389 Performing PCI function reset!\n");
4537 /* Turn off parity checking and serr during the physical reset */
4538 if (pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value)) {
4539 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4540 "3205 PCI read Config failed\n");
4544 pci_write_config_word(phba->pcidev, PCI_COMMAND, (cfg_value &
4545 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4547 /* Perform FCoE PCI function reset before freeing queue memory */
4548 rc = lpfc_pci_function_reset(phba);
4550 /* Restore PCI cmd register */
4551 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
4557 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
4558 * @phba: Pointer to HBA context object.
4560 * This function is called in the SLI initialization code path to
4561 * restart the HBA. The caller is not required to hold any lock.
4562 * This function writes MBX_RESTART mailbox command to the SLIM and
4563 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
4564 * function to free any pending commands. The function enables
4565 * POST only during the first initialization. The function returns zero.
4566 * The function does not guarantee completion of MBX_RESTART mailbox
4567 * command before the return of this function.
4570 lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
4573 struct lpfc_sli *psli;
4574 volatile uint32_t word0;
4575 void __iomem *to_slim;
4576 uint32_t hba_aer_enabled;
4578 spin_lock_irq(&phba->hbalock);
4580 /* Take PCIe device Advanced Error Reporting (AER) state */
4581 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4586 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4587 "0337 Restart HBA Data: x%x x%x\n",
4588 (phba->pport) ? phba->pport->port_state : 0,
4592 mb = (MAILBOX_t *) &word0;
4593 mb->mbxCommand = MBX_RESTART;
4596 lpfc_reset_barrier(phba);
4598 to_slim = phba->MBslimaddr;
4599 writel(*(uint32_t *) mb, to_slim);
4600 readl(to_slim); /* flush */
4602 /* Only skip post after fc_ffinit is completed */
4603 if (phba->pport && phba->pport->port_state)
4604 word0 = 1; /* This is really setting up word1 */
4606 word0 = 0; /* This is really setting up word1 */
4607 to_slim = phba->MBslimaddr + sizeof (uint32_t);
4608 writel(*(uint32_t *) mb, to_slim);
4609 readl(to_slim); /* flush */
4611 lpfc_sli_brdreset(phba);
4613 phba->pport->stopped = 0;
4614 phba->link_state = LPFC_INIT_START;
4616 spin_unlock_irq(&phba->hbalock);
4618 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4619 psli->stats_start = ktime_get_seconds();
4621 /* Give the INITFF and Post time to settle. */
4624 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4625 if (hba_aer_enabled)
4626 pci_disable_pcie_error_reporting(phba->pcidev);
4628 lpfc_hba_down_post(phba);
4634 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
4635 * @phba: Pointer to HBA context object.
4637 * This function is called in the SLI initialization code path to restart
4638 * a SLI4 HBA. The caller is not required to hold any lock.
4639 * At the end of the function, it calls lpfc_hba_down_post function to
4640 * free any pending commands.
4643 lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
4645 struct lpfc_sli *psli = &phba->sli;
4646 uint32_t hba_aer_enabled;
4650 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4651 "0296 Restart HBA Data: x%x x%x\n",
4652 phba->pport->port_state, psli->sli_flag);
4654 /* Take PCIe device Advanced Error Reporting (AER) state */
4655 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4657 rc = lpfc_sli4_brdreset(phba);
4659 phba->link_state = LPFC_HBA_ERROR;
4660 goto hba_down_queue;
4663 spin_lock_irq(&phba->hbalock);
4664 phba->pport->stopped = 0;
4665 phba->link_state = LPFC_INIT_START;
4667 spin_unlock_irq(&phba->hbalock);
4669 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4670 psli->stats_start = ktime_get_seconds();
4672 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4673 if (hba_aer_enabled)
4674 pci_disable_pcie_error_reporting(phba->pcidev);
4677 lpfc_hba_down_post(phba);
4678 lpfc_sli4_queue_destroy(phba);
4684 * lpfc_sli_brdrestart - Wrapper func for restarting hba
4685 * @phba: Pointer to HBA context object.
4687 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
4688 * API jump table function pointer from the lpfc_hba struct.
4691 lpfc_sli_brdrestart(struct lpfc_hba *phba)
4693 return phba->lpfc_sli_brdrestart(phba);
4697 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
4698 * @phba: Pointer to HBA context object.
4700 * This function is called after a HBA restart to wait for successful
4701 * restart of the HBA. Successful restart of the HBA is indicated by
4702 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
4703 * iteration, the function will restart the HBA again. The function returns
4704 * zero if HBA successfully restarted else returns negative error code.
4707 lpfc_sli_chipset_init(struct lpfc_hba *phba)
4709 uint32_t status, i = 0;
4711 /* Read the HBA Host Status Register */
4712 if (lpfc_readl(phba->HSregaddr, &status))
4715 /* Check status register to see what current state is */
4717 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
4719 /* Check every 10ms for 10 retries, then every 100ms for 90
4720 * retries, then every 1 sec for 50 retires for a total of
4721 * ~60 seconds before reset the board again and check every
4722 * 1 sec for 50 retries. The up to 60 seconds before the
4723 * board ready is required by the Falcon FIPS zeroization
4724 * complete, and any reset the board in between shall cause
4725 * restart of zeroization, further delay the board ready.
4728 /* Adapter failed to init, timeout, status reg
4730 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4731 "0436 Adapter failed to init, "
4732 "timeout, status reg x%x, "
4733 "FW Data: A8 x%x AC x%x\n", status,
4734 readl(phba->MBslimaddr + 0xa8),
4735 readl(phba->MBslimaddr + 0xac));
4736 phba->link_state = LPFC_HBA_ERROR;
4740 /* Check to see if any errors occurred during init */
4741 if (status & HS_FFERM) {
4742 /* ERROR: During chipset initialization */
4743 /* Adapter failed to init, chipset, status reg
4745 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4746 "0437 Adapter failed to init, "
4747 "chipset, status reg x%x, "
4748 "FW Data: A8 x%x AC x%x\n", status,
4749 readl(phba->MBslimaddr + 0xa8),
4750 readl(phba->MBslimaddr + 0xac));
4751 phba->link_state = LPFC_HBA_ERROR;
4764 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4765 lpfc_sli_brdrestart(phba);
4767 /* Read the HBA Host Status Register */
4768 if (lpfc_readl(phba->HSregaddr, &status))
4772 /* Check to see if any errors occurred during init */
4773 if (status & HS_FFERM) {
4774 /* ERROR: During chipset initialization */
4775 /* Adapter failed to init, chipset, status reg <status> */
4776 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4777 "0438 Adapter failed to init, chipset, "
4779 "FW Data: A8 x%x AC x%x\n", status,
4780 readl(phba->MBslimaddr + 0xa8),
4781 readl(phba->MBslimaddr + 0xac));
4782 phba->link_state = LPFC_HBA_ERROR;
4786 /* Clear all interrupt enable conditions */
4787 writel(0, phba->HCregaddr);
4788 readl(phba->HCregaddr); /* flush */
4790 /* setup host attn register */
4791 writel(0xffffffff, phba->HAregaddr);
4792 readl(phba->HAregaddr); /* flush */
4797 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
4799 * This function calculates and returns the number of HBQs required to be
4803 lpfc_sli_hbq_count(void)
4805 return ARRAY_SIZE(lpfc_hbq_defs);
4809 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
4811 * This function adds the number of hbq entries in every HBQ to get
4812 * the total number of hbq entries required for the HBA and returns
4816 lpfc_sli_hbq_entry_count(void)
4818 int hbq_count = lpfc_sli_hbq_count();
4822 for (i = 0; i < hbq_count; ++i)
4823 count += lpfc_hbq_defs[i]->entry_count;
4828 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
4830 * This function calculates amount of memory required for all hbq entries
4831 * to be configured and returns the total memory required.
4834 lpfc_sli_hbq_size(void)
4836 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
4840 * lpfc_sli_hbq_setup - configure and initialize HBQs
4841 * @phba: Pointer to HBA context object.
4843 * This function is called during the SLI initialization to configure
4844 * all the HBQs and post buffers to the HBQ. The caller is not
4845 * required to hold any locks. This function will return zero if successful
4846 * else it will return negative error code.
4849 lpfc_sli_hbq_setup(struct lpfc_hba *phba)
4851 int hbq_count = lpfc_sli_hbq_count();
4855 uint32_t hbq_entry_index;
4857 /* Get a Mailbox buffer to setup mailbox
4858 * commands for HBA initialization
4860 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4867 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
4868 phba->link_state = LPFC_INIT_MBX_CMDS;
4869 phba->hbq_in_use = 1;
4871 hbq_entry_index = 0;
4872 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
4873 phba->hbqs[hbqno].next_hbqPutIdx = 0;
4874 phba->hbqs[hbqno].hbqPutIdx = 0;
4875 phba->hbqs[hbqno].local_hbqGetIdx = 0;
4876 phba->hbqs[hbqno].entry_count =
4877 lpfc_hbq_defs[hbqno]->entry_count;
4878 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
4879 hbq_entry_index, pmb);
4880 hbq_entry_index += phba->hbqs[hbqno].entry_count;
4882 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
4883 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
4884 mbxStatus <status>, ring <num> */
4886 lpfc_printf_log(phba, KERN_ERR,
4887 LOG_SLI | LOG_VPORT,
4888 "1805 Adapter failed to init. "
4889 "Data: x%x x%x x%x\n",
4891 pmbox->mbxStatus, hbqno);
4893 phba->link_state = LPFC_HBA_ERROR;
4894 mempool_free(pmb, phba->mbox_mem_pool);
4898 phba->hbq_count = hbq_count;
4900 mempool_free(pmb, phba->mbox_mem_pool);
4902 /* Initially populate or replenish the HBQs */
4903 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
4904 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
4909 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
4910 * @phba: Pointer to HBA context object.
4912 * This function is called during the SLI initialization to configure
4913 * all the HBQs and post buffers to the HBQ. The caller is not
4914 * required to hold any locks. This function will return zero if successful
4915 * else it will return negative error code.
4918 lpfc_sli4_rb_setup(struct lpfc_hba *phba)
4920 phba->hbq_in_use = 1;
4922 * Specific case when the MDS diagnostics is enabled and supported.
4923 * The receive buffer count is truncated to manage the incoming
4926 if (phba->cfg_enable_mds_diags && phba->mds_diags_support)
4927 phba->hbqs[LPFC_ELS_HBQ].entry_count =
4928 lpfc_hbq_defs[LPFC_ELS_HBQ]->entry_count >> 1;
4930 phba->hbqs[LPFC_ELS_HBQ].entry_count =
4931 lpfc_hbq_defs[LPFC_ELS_HBQ]->entry_count;
4932 phba->hbq_count = 1;
4933 lpfc_sli_hbqbuf_init_hbqs(phba, LPFC_ELS_HBQ);
4934 /* Initially populate or replenish the HBQs */
4939 * lpfc_sli_config_port - Issue config port mailbox command
4940 * @phba: Pointer to HBA context object.
4941 * @sli_mode: sli mode - 2/3
4943 * This function is called by the sli initialization code path
4944 * to issue config_port mailbox command. This function restarts the
4945 * HBA firmware and issues a config_port mailbox command to configure
4946 * the SLI interface in the sli mode specified by sli_mode
4947 * variable. The caller is not required to hold any locks.
4948 * The function returns 0 if successful, else returns negative error
4952 lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
4955 uint32_t resetcount = 0, rc = 0, done = 0;
4957 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4959 phba->link_state = LPFC_HBA_ERROR;
4963 phba->sli_rev = sli_mode;
4964 while (resetcount < 2 && !done) {
4965 spin_lock_irq(&phba->hbalock);
4966 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
4967 spin_unlock_irq(&phba->hbalock);
4968 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4969 lpfc_sli_brdrestart(phba);
4970 rc = lpfc_sli_chipset_init(phba);
4974 spin_lock_irq(&phba->hbalock);
4975 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4976 spin_unlock_irq(&phba->hbalock);
4979 /* Call pre CONFIG_PORT mailbox command initialization. A
4980 * value of 0 means the call was successful. Any other
4981 * nonzero value is a failure, but if ERESTART is returned,
4982 * the driver may reset the HBA and try again.
4984 rc = lpfc_config_port_prep(phba);
4985 if (rc == -ERESTART) {
4986 phba->link_state = LPFC_LINK_UNKNOWN;
4991 phba->link_state = LPFC_INIT_MBX_CMDS;
4992 lpfc_config_port(phba, pmb);
4993 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
4994 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
4995 LPFC_SLI3_HBQ_ENABLED |
4996 LPFC_SLI3_CRP_ENABLED |
4997 LPFC_SLI3_DSS_ENABLED);
4998 if (rc != MBX_SUCCESS) {
4999 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5000 "0442 Adapter failed to init, mbxCmd x%x "
5001 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
5002 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
5003 spin_lock_irq(&phba->hbalock);
5004 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
5005 spin_unlock_irq(&phba->hbalock);
5008 /* Allow asynchronous mailbox command to go through */
5009 spin_lock_irq(&phba->hbalock);
5010 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
5011 spin_unlock_irq(&phba->hbalock);
5014 if ((pmb->u.mb.un.varCfgPort.casabt == 1) &&
5015 (pmb->u.mb.un.varCfgPort.gasabt == 0))
5016 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5017 "3110 Port did not grant ASABT\n");
5022 goto do_prep_failed;
5024 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
5025 if (!pmb->u.mb.un.varCfgPort.cMA) {
5027 goto do_prep_failed;
5029 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
5030 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
5031 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
5032 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
5033 phba->max_vpi : phba->max_vports;
5037 phba->fips_level = 0;
5038 phba->fips_spec_rev = 0;
5039 if (pmb->u.mb.un.varCfgPort.gdss) {
5040 phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
5041 phba->fips_level = pmb->u.mb.un.varCfgPort.fips_level;
5042 phba->fips_spec_rev = pmb->u.mb.un.varCfgPort.fips_rev;
5043 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5044 "2850 Security Crypto Active. FIPS x%d "
5046 phba->fips_level, phba->fips_spec_rev);
5048 if (pmb->u.mb.un.varCfgPort.sec_err) {
5049 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5050 "2856 Config Port Security Crypto "
5052 pmb->u.mb.un.varCfgPort.sec_err);
5054 if (pmb->u.mb.un.varCfgPort.gerbm)
5055 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
5056 if (pmb->u.mb.un.varCfgPort.gcrp)
5057 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
5059 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
5060 phba->port_gp = phba->mbox->us.s3_pgp.port;
5062 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
5063 if (pmb->u.mb.un.varCfgPort.gbg == 0) {
5064 phba->cfg_enable_bg = 0;
5065 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
5066 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5067 "0443 Adapter did not grant "
5072 phba->hbq_get = NULL;
5073 phba->port_gp = phba->mbox->us.s2.port;
5077 mempool_free(pmb, phba->mbox_mem_pool);
5083 * lpfc_sli_hba_setup - SLI initialization function
5084 * @phba: Pointer to HBA context object.
5086 * This function is the main SLI initialization function. This function
5087 * is called by the HBA initialization code, HBA reset code and HBA
5088 * error attention handler code. Caller is not required to hold any
5089 * locks. This function issues config_port mailbox command to configure
5090 * the SLI, setup iocb rings and HBQ rings. In the end the function
5091 * calls the config_port_post function to issue init_link mailbox
5092 * command and to start the discovery. The function will return zero
5093 * if successful, else it will return negative error code.
5096 lpfc_sli_hba_setup(struct lpfc_hba *phba)
5102 switch (phba->cfg_sli_mode) {
5104 if (phba->cfg_enable_npiv) {
5105 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
5106 "1824 NPIV enabled: Override sli_mode "
5107 "parameter (%d) to auto (0).\n",
5108 phba->cfg_sli_mode);
5117 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
5118 "1819 Unrecognized sli_mode parameter: %d.\n",
5119 phba->cfg_sli_mode);
5123 phba->fcp_embed_io = 0; /* SLI4 FC support only */
5125 rc = lpfc_sli_config_port(phba, mode);
5127 if (rc && phba->cfg_sli_mode == 3)
5128 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
5129 "1820 Unable to select SLI-3. "
5130 "Not supported by adapter.\n");
5131 if (rc && mode != 2)
5132 rc = lpfc_sli_config_port(phba, 2);
5133 else if (rc && mode == 2)
5134 rc = lpfc_sli_config_port(phba, 3);
5136 goto lpfc_sli_hba_setup_error;
5138 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
5139 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
5140 rc = pci_enable_pcie_error_reporting(phba->pcidev);
5142 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5143 "2709 This device supports "
5144 "Advanced Error Reporting (AER)\n");
5145 spin_lock_irq(&phba->hbalock);
5146 phba->hba_flag |= HBA_AER_ENABLED;
5147 spin_unlock_irq(&phba->hbalock);
5149 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5150 "2708 This device does not support "
5151 "Advanced Error Reporting (AER): %d\n",
5153 phba->cfg_aer_support = 0;
5157 if (phba->sli_rev == 3) {
5158 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
5159 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
5161 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
5162 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
5163 phba->sli3_options = 0;
5166 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5167 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
5168 phba->sli_rev, phba->max_vpi);
5169 rc = lpfc_sli_ring_map(phba);
5172 goto lpfc_sli_hba_setup_error;
5174 /* Initialize VPIs. */
5175 if (phba->sli_rev == LPFC_SLI_REV3) {
5177 * The VPI bitmask and physical ID array are allocated
5178 * and initialized once only - at driver load. A port
5179 * reset doesn't need to reinitialize this memory.
5181 if ((phba->vpi_bmask == NULL) && (phba->vpi_ids == NULL)) {
5182 longs = (phba->max_vpi + BITS_PER_LONG) / BITS_PER_LONG;
5183 phba->vpi_bmask = kcalloc(longs,
5184 sizeof(unsigned long),
5186 if (!phba->vpi_bmask) {
5188 goto lpfc_sli_hba_setup_error;
5191 phba->vpi_ids = kcalloc(phba->max_vpi + 1,
5194 if (!phba->vpi_ids) {
5195 kfree(phba->vpi_bmask);
5197 goto lpfc_sli_hba_setup_error;
5199 for (i = 0; i < phba->max_vpi; i++)
5200 phba->vpi_ids[i] = i;
5205 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
5206 rc = lpfc_sli_hbq_setup(phba);
5208 goto lpfc_sli_hba_setup_error;
5210 spin_lock_irq(&phba->hbalock);
5211 phba->sli.sli_flag |= LPFC_PROCESS_LA;
5212 spin_unlock_irq(&phba->hbalock);
5214 rc = lpfc_config_port_post(phba);
5216 goto lpfc_sli_hba_setup_error;
5220 lpfc_sli_hba_setup_error:
5221 phba->link_state = LPFC_HBA_ERROR;
5222 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5223 "0445 Firmware initialization failed\n");
5228 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
5229 * @phba: Pointer to HBA context object.
5230 * @mboxq: mailbox pointer.
5231 * This function issue a dump mailbox command to read config region
5232 * 23 and parse the records in the region and populate driver
5236 lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba)
5238 LPFC_MBOXQ_t *mboxq;
5239 struct lpfc_dmabuf *mp;
5240 struct lpfc_mqe *mqe;
5241 uint32_t data_length;
5244 /* Program the default value of vlan_id and fc_map */
5245 phba->valid_vlan = 0;
5246 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5247 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5248 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5250 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5254 mqe = &mboxq->u.mqe;
5255 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq)) {
5257 goto out_free_mboxq;
5260 mp = (struct lpfc_dmabuf *)mboxq->ctx_buf;
5261 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5263 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5264 "(%d):2571 Mailbox cmd x%x Status x%x "
5265 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
5266 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
5267 "CQ: x%x x%x x%x x%x\n",
5268 mboxq->vport ? mboxq->vport->vpi : 0,
5269 bf_get(lpfc_mqe_command, mqe),
5270 bf_get(lpfc_mqe_status, mqe),
5271 mqe->un.mb_words[0], mqe->un.mb_words[1],
5272 mqe->un.mb_words[2], mqe->un.mb_words[3],
5273 mqe->un.mb_words[4], mqe->un.mb_words[5],
5274 mqe->un.mb_words[6], mqe->un.mb_words[7],
5275 mqe->un.mb_words[8], mqe->un.mb_words[9],
5276 mqe->un.mb_words[10], mqe->un.mb_words[11],
5277 mqe->un.mb_words[12], mqe->un.mb_words[13],
5278 mqe->un.mb_words[14], mqe->un.mb_words[15],
5279 mqe->un.mb_words[16], mqe->un.mb_words[50],
5281 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
5282 mboxq->mcqe.trailer);
5285 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5288 goto out_free_mboxq;
5290 data_length = mqe->un.mb_words[5];
5291 if (data_length > DMP_RGN23_SIZE) {
5292 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5295 goto out_free_mboxq;
5298 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
5299 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5304 mempool_free(mboxq, phba->mbox_mem_pool);
5309 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
5310 * @phba: pointer to lpfc hba data structure.
5311 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
5312 * @vpd: pointer to the memory to hold resulting port vpd data.
5313 * @vpd_size: On input, the number of bytes allocated to @vpd.
5314 * On output, the number of data bytes in @vpd.
5316 * This routine executes a READ_REV SLI4 mailbox command. In
5317 * addition, this routine gets the port vpd data.
5321 * -ENOMEM - could not allocated memory.
5324 lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
5325 uint8_t *vpd, uint32_t *vpd_size)
5329 struct lpfc_dmabuf *dmabuf;
5330 struct lpfc_mqe *mqe;
5332 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5337 * Get a DMA buffer for the vpd data resulting from the READ_REV
5340 dma_size = *vpd_size;
5341 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, dma_size,
5342 &dmabuf->phys, GFP_KERNEL);
5343 if (!dmabuf->virt) {
5349 * The SLI4 implementation of READ_REV conflicts at word1,
5350 * bits 31:16 and SLI4 adds vpd functionality not present
5351 * in SLI3. This code corrects the conflicts.
5353 lpfc_read_rev(phba, mboxq);
5354 mqe = &mboxq->u.mqe;
5355 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
5356 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
5357 mqe->un.read_rev.word1 &= 0x0000FFFF;
5358 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
5359 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
5361 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5363 dma_free_coherent(&phba->pcidev->dev, dma_size,
5364 dmabuf->virt, dmabuf->phys);
5370 * The available vpd length cannot be bigger than the
5371 * DMA buffer passed to the port. Catch the less than
5372 * case and update the caller's size.
5374 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
5375 *vpd_size = mqe->un.read_rev.avail_vpd_len;
5377 memcpy(vpd, dmabuf->virt, *vpd_size);
5379 dma_free_coherent(&phba->pcidev->dev, dma_size,
5380 dmabuf->virt, dmabuf->phys);
5386 * lpfc_sli4_get_ctl_attr - Retrieve SLI4 device controller attributes
5387 * @phba: pointer to lpfc hba data structure.
5389 * This routine retrieves SLI4 device physical port name this PCI function
5394 * otherwise - failed to retrieve controller attributes
5397 lpfc_sli4_get_ctl_attr(struct lpfc_hba *phba)
5399 LPFC_MBOXQ_t *mboxq;
5400 struct lpfc_mbx_get_cntl_attributes *mbx_cntl_attr;
5401 struct lpfc_controller_attribute *cntl_attr;
5402 void *virtaddr = NULL;
5403 uint32_t alloclen, reqlen;
5404 uint32_t shdr_status, shdr_add_status;
5405 union lpfc_sli4_cfg_shdr *shdr;
5408 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5412 /* Send COMMON_GET_CNTL_ATTRIBUTES mbox cmd */
5413 reqlen = sizeof(struct lpfc_mbx_get_cntl_attributes);
5414 alloclen = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5415 LPFC_MBOX_OPCODE_GET_CNTL_ATTRIBUTES, reqlen,
5416 LPFC_SLI4_MBX_NEMBED);
5418 if (alloclen < reqlen) {
5419 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5420 "3084 Allocated DMA memory size (%d) is "
5421 "less than the requested DMA memory size "
5422 "(%d)\n", alloclen, reqlen);
5424 goto out_free_mboxq;
5426 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5427 virtaddr = mboxq->sge_array->addr[0];
5428 mbx_cntl_attr = (struct lpfc_mbx_get_cntl_attributes *)virtaddr;
5429 shdr = &mbx_cntl_attr->cfg_shdr;
5430 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5431 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5432 if (shdr_status || shdr_add_status || rc) {
5433 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5434 "3085 Mailbox x%x (x%x/x%x) failed, "
5435 "rc:x%x, status:x%x, add_status:x%x\n",
5436 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5437 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
5438 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
5439 rc, shdr_status, shdr_add_status);
5441 goto out_free_mboxq;
5444 cntl_attr = &mbx_cntl_attr->cntl_attr;
5445 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
5446 phba->sli4_hba.lnk_info.lnk_tp =
5447 bf_get(lpfc_cntl_attr_lnk_type, cntl_attr);
5448 phba->sli4_hba.lnk_info.lnk_no =
5449 bf_get(lpfc_cntl_attr_lnk_numb, cntl_attr);
5451 memset(phba->BIOSVersion, 0, sizeof(phba->BIOSVersion));
5452 strlcat(phba->BIOSVersion, (char *)cntl_attr->bios_ver_str,
5453 sizeof(phba->BIOSVersion));
5455 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5456 "3086 lnk_type:%d, lnk_numb:%d, bios_ver:%s\n",
5457 phba->sli4_hba.lnk_info.lnk_tp,
5458 phba->sli4_hba.lnk_info.lnk_no,
5461 if (rc != MBX_TIMEOUT) {
5462 if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
5463 lpfc_sli4_mbox_cmd_free(phba, mboxq);
5465 mempool_free(mboxq, phba->mbox_mem_pool);
5471 * lpfc_sli4_retrieve_pport_name - Retrieve SLI4 device physical port name
5472 * @phba: pointer to lpfc hba data structure.
5474 * This routine retrieves SLI4 device physical port name this PCI function
5479 * otherwise - failed to retrieve physical port name
5482 lpfc_sli4_retrieve_pport_name(struct lpfc_hba *phba)
5484 LPFC_MBOXQ_t *mboxq;
5485 struct lpfc_mbx_get_port_name *get_port_name;
5486 uint32_t shdr_status, shdr_add_status;
5487 union lpfc_sli4_cfg_shdr *shdr;
5488 char cport_name = 0;
5491 /* We assume nothing at this point */
5492 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
5493 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_NON;
5495 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5498 /* obtain link type and link number via READ_CONFIG */
5499 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
5500 lpfc_sli4_read_config(phba);
5501 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL)
5502 goto retrieve_ppname;
5504 /* obtain link type and link number via COMMON_GET_CNTL_ATTRIBUTES */
5505 rc = lpfc_sli4_get_ctl_attr(phba);
5507 goto out_free_mboxq;
5510 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5511 LPFC_MBOX_OPCODE_GET_PORT_NAME,
5512 sizeof(struct lpfc_mbx_get_port_name) -
5513 sizeof(struct lpfc_sli4_cfg_mhdr),
5514 LPFC_SLI4_MBX_EMBED);
5515 get_port_name = &mboxq->u.mqe.un.get_port_name;
5516 shdr = (union lpfc_sli4_cfg_shdr *)&get_port_name->header.cfg_shdr;
5517 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_OPCODE_VERSION_1);
5518 bf_set(lpfc_mbx_get_port_name_lnk_type, &get_port_name->u.request,
5519 phba->sli4_hba.lnk_info.lnk_tp);
5520 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5521 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5522 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5523 if (shdr_status || shdr_add_status || rc) {
5524 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5525 "3087 Mailbox x%x (x%x/x%x) failed: "
5526 "rc:x%x, status:x%x, add_status:x%x\n",
5527 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5528 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
5529 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
5530 rc, shdr_status, shdr_add_status);
5532 goto out_free_mboxq;
5534 switch (phba->sli4_hba.lnk_info.lnk_no) {
5535 case LPFC_LINK_NUMBER_0:
5536 cport_name = bf_get(lpfc_mbx_get_port_name_name0,
5537 &get_port_name->u.response);
5538 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5540 case LPFC_LINK_NUMBER_1:
5541 cport_name = bf_get(lpfc_mbx_get_port_name_name1,
5542 &get_port_name->u.response);
5543 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5545 case LPFC_LINK_NUMBER_2:
5546 cport_name = bf_get(lpfc_mbx_get_port_name_name2,
5547 &get_port_name->u.response);
5548 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5550 case LPFC_LINK_NUMBER_3:
5551 cport_name = bf_get(lpfc_mbx_get_port_name_name3,
5552 &get_port_name->u.response);
5553 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5559 if (phba->sli4_hba.pport_name_sta == LPFC_SLI4_PPNAME_GET) {
5560 phba->Port[0] = cport_name;
5561 phba->Port[1] = '\0';
5562 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5563 "3091 SLI get port name: %s\n", phba->Port);
5567 if (rc != MBX_TIMEOUT) {
5568 if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
5569 lpfc_sli4_mbox_cmd_free(phba, mboxq);
5571 mempool_free(mboxq, phba->mbox_mem_pool);
5577 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
5578 * @phba: pointer to lpfc hba data structure.
5580 * This routine is called to explicitly arm the SLI4 device's completion and
5584 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
5587 struct lpfc_sli4_hba *sli4_hba = &phba->sli4_hba;
5588 struct lpfc_sli4_hdw_queue *qp;
5589 struct lpfc_queue *eq;
5591 sli4_hba->sli4_write_cq_db(phba, sli4_hba->mbx_cq, 0, LPFC_QUEUE_REARM);
5592 sli4_hba->sli4_write_cq_db(phba, sli4_hba->els_cq, 0, LPFC_QUEUE_REARM);
5593 if (sli4_hba->nvmels_cq)
5594 sli4_hba->sli4_write_cq_db(phba, sli4_hba->nvmels_cq, 0,
5597 if (sli4_hba->hdwq) {
5598 /* Loop thru all Hardware Queues */
5599 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
5600 qp = &sli4_hba->hdwq[qidx];
5601 /* ARM the corresponding CQ */
5602 sli4_hba->sli4_write_cq_db(phba, qp->io_cq, 0,
5606 /* Loop thru all IRQ vectors */
5607 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
5608 eq = sli4_hba->hba_eq_hdl[qidx].eq;
5609 /* ARM the corresponding EQ */
5610 sli4_hba->sli4_write_eq_db(phba, eq,
5611 0, LPFC_QUEUE_REARM);
5615 if (phba->nvmet_support) {
5616 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) {
5617 sli4_hba->sli4_write_cq_db(phba,
5618 sli4_hba->nvmet_cqset[qidx], 0,
5625 * lpfc_sli4_get_avail_extnt_rsrc - Get available resource extent count.
5626 * @phba: Pointer to HBA context object.
5627 * @type: The resource extent type.
5628 * @extnt_count: buffer to hold port available extent count.
5629 * @extnt_size: buffer to hold element count per extent.
5631 * This function calls the port and retrievs the number of available
5632 * extents and their size for a particular extent type.
5634 * Returns: 0 if successful. Nonzero otherwise.
5637 lpfc_sli4_get_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type,
5638 uint16_t *extnt_count, uint16_t *extnt_size)
5643 struct lpfc_mbx_get_rsrc_extent_info *rsrc_info;
5646 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5650 /* Find out how many extents are available for this resource type */
5651 length = (sizeof(struct lpfc_mbx_get_rsrc_extent_info) -
5652 sizeof(struct lpfc_sli4_cfg_mhdr));
5653 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5654 LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO,
5655 length, LPFC_SLI4_MBX_EMBED);
5657 /* Send an extents count of 0 - the GET doesn't use it. */
5658 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5659 LPFC_SLI4_MBX_EMBED);
5665 if (!phba->sli4_hba.intr_enable)
5666 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5668 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5669 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5676 rsrc_info = &mbox->u.mqe.un.rsrc_extent_info;
5677 if (bf_get(lpfc_mbox_hdr_status,
5678 &rsrc_info->header.cfg_shdr.response)) {
5679 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5680 "2930 Failed to get resource extents "
5681 "Status 0x%x Add'l Status 0x%x\n",
5682 bf_get(lpfc_mbox_hdr_status,
5683 &rsrc_info->header.cfg_shdr.response),
5684 bf_get(lpfc_mbox_hdr_add_status,
5685 &rsrc_info->header.cfg_shdr.response));
5690 *extnt_count = bf_get(lpfc_mbx_get_rsrc_extent_info_cnt,
5692 *extnt_size = bf_get(lpfc_mbx_get_rsrc_extent_info_size,
5695 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5696 "3162 Retrieved extents type-%d from port: count:%d, "
5697 "size:%d\n", type, *extnt_count, *extnt_size);
5700 mempool_free(mbox, phba->mbox_mem_pool);
5705 * lpfc_sli4_chk_avail_extnt_rsrc - Check for available SLI4 resource extents.
5706 * @phba: Pointer to HBA context object.
5707 * @type: The extent type to check.
5709 * This function reads the current available extents from the port and checks
5710 * if the extent count or extent size has changed since the last access.
5711 * Callers use this routine post port reset to understand if there is a
5712 * extent reprovisioning requirement.
5715 * -Error: error indicates problem.
5716 * 1: Extent count or size has changed.
5720 lpfc_sli4_chk_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type)
5722 uint16_t curr_ext_cnt, rsrc_ext_cnt;
5723 uint16_t size_diff, rsrc_ext_size;
5725 struct lpfc_rsrc_blks *rsrc_entry;
5726 struct list_head *rsrc_blk_list = NULL;
5730 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5737 case LPFC_RSC_TYPE_FCOE_RPI:
5738 rsrc_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5740 case LPFC_RSC_TYPE_FCOE_VPI:
5741 rsrc_blk_list = &phba->lpfc_vpi_blk_list;
5743 case LPFC_RSC_TYPE_FCOE_XRI:
5744 rsrc_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5746 case LPFC_RSC_TYPE_FCOE_VFI:
5747 rsrc_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5753 list_for_each_entry(rsrc_entry, rsrc_blk_list, list) {
5755 if (rsrc_entry->rsrc_size != rsrc_ext_size)
5759 if (curr_ext_cnt != rsrc_ext_cnt || size_diff != 0)
5766 * lpfc_sli4_cfg_post_extnts -
5767 * @phba: Pointer to HBA context object.
5768 * @extnt_cnt - number of available extents.
5769 * @type - the extent type (rpi, xri, vfi, vpi).
5770 * @emb - buffer to hold either MBX_EMBED or MBX_NEMBED operation.
5771 * @mbox - pointer to the caller's allocated mailbox structure.
5773 * This function executes the extents allocation request. It also
5774 * takes care of the amount of memory needed to allocate or get the
5775 * allocated extents. It is the caller's responsibility to evaluate
5779 * -Error: Error value describes the condition found.
5783 lpfc_sli4_cfg_post_extnts(struct lpfc_hba *phba, uint16_t extnt_cnt,
5784 uint16_t type, bool *emb, LPFC_MBOXQ_t *mbox)
5789 uint32_t alloc_len, mbox_tmo;
5791 /* Calculate the total requested length of the dma memory */
5792 req_len = extnt_cnt * sizeof(uint16_t);
5795 * Calculate the size of an embedded mailbox. The uint32_t
5796 * accounts for extents-specific word.
5798 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
5802 * Presume the allocation and response will fit into an embedded
5803 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5805 *emb = LPFC_SLI4_MBX_EMBED;
5806 if (req_len > emb_len) {
5807 req_len = extnt_cnt * sizeof(uint16_t) +
5808 sizeof(union lpfc_sli4_cfg_shdr) +
5810 *emb = LPFC_SLI4_MBX_NEMBED;
5813 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5814 LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT,
5816 if (alloc_len < req_len) {
5817 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5818 "2982 Allocated DMA memory size (x%x) is "
5819 "less than the requested DMA memory "
5820 "size (x%x)\n", alloc_len, req_len);
5823 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, extnt_cnt, type, *emb);
5827 if (!phba->sli4_hba.intr_enable)
5828 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5830 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5831 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5840 * lpfc_sli4_alloc_extent - Allocate an SLI4 resource extent.
5841 * @phba: Pointer to HBA context object.
5842 * @type: The resource extent type to allocate.
5844 * This function allocates the number of elements for the specified
5848 lpfc_sli4_alloc_extent(struct lpfc_hba *phba, uint16_t type)
5851 uint16_t rsrc_id_cnt, rsrc_cnt, rsrc_size;
5852 uint16_t rsrc_id, rsrc_start, j, k;
5855 unsigned long longs;
5856 unsigned long *bmask;
5857 struct lpfc_rsrc_blks *rsrc_blks;
5860 struct lpfc_id_range *id_array = NULL;
5861 void *virtaddr = NULL;
5862 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5863 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5864 struct list_head *ext_blk_list;
5866 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5872 if ((rsrc_cnt == 0) || (rsrc_size == 0)) {
5873 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5874 "3009 No available Resource Extents "
5875 "for resource type 0x%x: Count: 0x%x, "
5876 "Size 0x%x\n", type, rsrc_cnt,
5881 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_INIT | LOG_SLI,
5882 "2903 Post resource extents type-0x%x: "
5883 "count:%d, size %d\n", type, rsrc_cnt, rsrc_size);
5885 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5889 rc = lpfc_sli4_cfg_post_extnts(phba, rsrc_cnt, type, &emb, mbox);
5896 * Figure out where the response is located. Then get local pointers
5897 * to the response data. The port does not guarantee to respond to
5898 * all extents counts request so update the local variable with the
5899 * allocated count from the port.
5901 if (emb == LPFC_SLI4_MBX_EMBED) {
5902 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
5903 id_array = &rsrc_ext->u.rsp.id[0];
5904 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
5906 virtaddr = mbox->sge_array->addr[0];
5907 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
5908 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
5909 id_array = &n_rsrc->id;
5912 longs = ((rsrc_cnt * rsrc_size) + BITS_PER_LONG - 1) / BITS_PER_LONG;
5913 rsrc_id_cnt = rsrc_cnt * rsrc_size;
5916 * Based on the resource size and count, correct the base and max
5919 length = sizeof(struct lpfc_rsrc_blks);
5921 case LPFC_RSC_TYPE_FCOE_RPI:
5922 phba->sli4_hba.rpi_bmask = kcalloc(longs,
5923 sizeof(unsigned long),
5925 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5929 phba->sli4_hba.rpi_ids = kcalloc(rsrc_id_cnt,
5932 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5933 kfree(phba->sli4_hba.rpi_bmask);
5939 * The next_rpi was initialized with the maximum available
5940 * count but the port may allocate a smaller number. Catch
5941 * that case and update the next_rpi.
5943 phba->sli4_hba.next_rpi = rsrc_id_cnt;
5945 /* Initialize local ptrs for common extent processing later. */
5946 bmask = phba->sli4_hba.rpi_bmask;
5947 ids = phba->sli4_hba.rpi_ids;
5948 ext_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5950 case LPFC_RSC_TYPE_FCOE_VPI:
5951 phba->vpi_bmask = kcalloc(longs, sizeof(unsigned long),
5953 if (unlikely(!phba->vpi_bmask)) {
5957 phba->vpi_ids = kcalloc(rsrc_id_cnt, sizeof(uint16_t),
5959 if (unlikely(!phba->vpi_ids)) {
5960 kfree(phba->vpi_bmask);
5965 /* Initialize local ptrs for common extent processing later. */
5966 bmask = phba->vpi_bmask;
5967 ids = phba->vpi_ids;
5968 ext_blk_list = &phba->lpfc_vpi_blk_list;
5970 case LPFC_RSC_TYPE_FCOE_XRI:
5971 phba->sli4_hba.xri_bmask = kcalloc(longs,
5972 sizeof(unsigned long),
5974 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5978 phba->sli4_hba.max_cfg_param.xri_used = 0;
5979 phba->sli4_hba.xri_ids = kcalloc(rsrc_id_cnt,
5982 if (unlikely(!phba->sli4_hba.xri_ids)) {
5983 kfree(phba->sli4_hba.xri_bmask);
5988 /* Initialize local ptrs for common extent processing later. */
5989 bmask = phba->sli4_hba.xri_bmask;
5990 ids = phba->sli4_hba.xri_ids;
5991 ext_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5993 case LPFC_RSC_TYPE_FCOE_VFI:
5994 phba->sli4_hba.vfi_bmask = kcalloc(longs,
5995 sizeof(unsigned long),
5997 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
6001 phba->sli4_hba.vfi_ids = kcalloc(rsrc_id_cnt,
6004 if (unlikely(!phba->sli4_hba.vfi_ids)) {
6005 kfree(phba->sli4_hba.vfi_bmask);
6010 /* Initialize local ptrs for common extent processing later. */
6011 bmask = phba->sli4_hba.vfi_bmask;
6012 ids = phba->sli4_hba.vfi_ids;
6013 ext_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
6016 /* Unsupported Opcode. Fail call. */
6020 ext_blk_list = NULL;
6025 * Complete initializing the extent configuration with the
6026 * allocated ids assigned to this function. The bitmask serves
6027 * as an index into the array and manages the available ids. The
6028 * array just stores the ids communicated to the port via the wqes.
6030 for (i = 0, j = 0, k = 0; i < rsrc_cnt; i++) {
6032 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_0,
6035 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_1,
6038 rsrc_blks = kzalloc(length, GFP_KERNEL);
6039 if (unlikely(!rsrc_blks)) {
6045 rsrc_blks->rsrc_start = rsrc_id;
6046 rsrc_blks->rsrc_size = rsrc_size;
6047 list_add_tail(&rsrc_blks->list, ext_blk_list);
6048 rsrc_start = rsrc_id;
6049 if ((type == LPFC_RSC_TYPE_FCOE_XRI) && (j == 0)) {
6050 phba->sli4_hba.io_xri_start = rsrc_start +
6051 lpfc_sli4_get_iocb_cnt(phba);
6054 while (rsrc_id < (rsrc_start + rsrc_size)) {
6059 /* Entire word processed. Get next word.*/
6064 lpfc_sli4_mbox_cmd_free(phba, mbox);
6071 * lpfc_sli4_dealloc_extent - Deallocate an SLI4 resource extent.
6072 * @phba: Pointer to HBA context object.
6073 * @type: the extent's type.
6075 * This function deallocates all extents of a particular resource type.
6076 * SLI4 does not allow for deallocating a particular extent range. It
6077 * is the caller's responsibility to release all kernel memory resources.
6080 lpfc_sli4_dealloc_extent(struct lpfc_hba *phba, uint16_t type)
6083 uint32_t length, mbox_tmo = 0;
6085 struct lpfc_mbx_dealloc_rsrc_extents *dealloc_rsrc;
6086 struct lpfc_rsrc_blks *rsrc_blk, *rsrc_blk_next;
6088 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6093 * This function sends an embedded mailbox because it only sends the
6094 * the resource type. All extents of this type are released by the
6097 length = (sizeof(struct lpfc_mbx_dealloc_rsrc_extents) -
6098 sizeof(struct lpfc_sli4_cfg_mhdr));
6099 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6100 LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT,
6101 length, LPFC_SLI4_MBX_EMBED);
6103 /* Send an extents count of 0 - the dealloc doesn't use it. */
6104 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
6105 LPFC_SLI4_MBX_EMBED);
6110 if (!phba->sli4_hba.intr_enable)
6111 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
6113 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
6114 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
6121 dealloc_rsrc = &mbox->u.mqe.un.dealloc_rsrc_extents;
6122 if (bf_get(lpfc_mbox_hdr_status,
6123 &dealloc_rsrc->header.cfg_shdr.response)) {
6124 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
6125 "2919 Failed to release resource extents "
6126 "for type %d - Status 0x%x Add'l Status 0x%x. "
6127 "Resource memory not released.\n",
6129 bf_get(lpfc_mbox_hdr_status,
6130 &dealloc_rsrc->header.cfg_shdr.response),
6131 bf_get(lpfc_mbox_hdr_add_status,
6132 &dealloc_rsrc->header.cfg_shdr.response));
6137 /* Release kernel memory resources for the specific type. */
6139 case LPFC_RSC_TYPE_FCOE_VPI:
6140 kfree(phba->vpi_bmask);
6141 kfree(phba->vpi_ids);
6142 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6143 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
6144 &phba->lpfc_vpi_blk_list, list) {
6145 list_del_init(&rsrc_blk->list);
6148 phba->sli4_hba.max_cfg_param.vpi_used = 0;
6150 case LPFC_RSC_TYPE_FCOE_XRI:
6151 kfree(phba->sli4_hba.xri_bmask);
6152 kfree(phba->sli4_hba.xri_ids);
6153 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
6154 &phba->sli4_hba.lpfc_xri_blk_list, list) {
6155 list_del_init(&rsrc_blk->list);
6159 case LPFC_RSC_TYPE_FCOE_VFI:
6160 kfree(phba->sli4_hba.vfi_bmask);
6161 kfree(phba->sli4_hba.vfi_ids);
6162 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6163 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
6164 &phba->sli4_hba.lpfc_vfi_blk_list, list) {
6165 list_del_init(&rsrc_blk->list);
6169 case LPFC_RSC_TYPE_FCOE_RPI:
6170 /* RPI bitmask and physical id array are cleaned up earlier. */
6171 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
6172 &phba->sli4_hba.lpfc_rpi_blk_list, list) {
6173 list_del_init(&rsrc_blk->list);
6181 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6184 mempool_free(mbox, phba->mbox_mem_pool);
6189 lpfc_set_features(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox,
6194 len = sizeof(struct lpfc_mbx_set_feature) -
6195 sizeof(struct lpfc_sli4_cfg_mhdr);
6196 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6197 LPFC_MBOX_OPCODE_SET_FEATURES, len,
6198 LPFC_SLI4_MBX_EMBED);
6201 case LPFC_SET_UE_RECOVERY:
6202 bf_set(lpfc_mbx_set_feature_UER,
6203 &mbox->u.mqe.un.set_feature, 1);
6204 mbox->u.mqe.un.set_feature.feature = LPFC_SET_UE_RECOVERY;
6205 mbox->u.mqe.un.set_feature.param_len = 8;
6207 case LPFC_SET_MDS_DIAGS:
6208 bf_set(lpfc_mbx_set_feature_mds,
6209 &mbox->u.mqe.un.set_feature, 1);
6210 bf_set(lpfc_mbx_set_feature_mds_deep_loopbk,
6211 &mbox->u.mqe.un.set_feature, 1);
6212 mbox->u.mqe.un.set_feature.feature = LPFC_SET_MDS_DIAGS;
6213 mbox->u.mqe.un.set_feature.param_len = 8;
6215 case LPFC_SET_DUAL_DUMP:
6216 bf_set(lpfc_mbx_set_feature_dd,
6217 &mbox->u.mqe.un.set_feature, LPFC_ENABLE_DUAL_DUMP);
6218 bf_set(lpfc_mbx_set_feature_ddquery,
6219 &mbox->u.mqe.un.set_feature, 0);
6220 mbox->u.mqe.un.set_feature.feature = LPFC_SET_DUAL_DUMP;
6221 mbox->u.mqe.un.set_feature.param_len = 4;
6229 * lpfc_ras_stop_fwlog: Disable FW logging by the adapter
6230 * @phba: Pointer to HBA context object.
6232 * Disable FW logging into host memory on the adapter. To
6233 * be done before reading logs from the host memory.
6236 lpfc_ras_stop_fwlog(struct lpfc_hba *phba)
6238 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6240 spin_lock_irq(&phba->hbalock);
6241 ras_fwlog->state = INACTIVE;
6242 spin_unlock_irq(&phba->hbalock);
6244 /* Disable FW logging to host memory */
6245 writel(LPFC_CTL_PDEV_CTL_DDL_RAS,
6246 phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET);
6248 /* Wait 10ms for firmware to stop using DMA buffer */
6249 usleep_range(10 * 1000, 20 * 1000);
6253 * lpfc_sli4_ras_dma_free - Free memory allocated for FW logging.
6254 * @phba: Pointer to HBA context object.
6256 * This function is called to free memory allocated for RAS FW logging
6257 * support in the driver.
6260 lpfc_sli4_ras_dma_free(struct lpfc_hba *phba)
6262 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6263 struct lpfc_dmabuf *dmabuf, *next;
6265 if (!list_empty(&ras_fwlog->fwlog_buff_list)) {
6266 list_for_each_entry_safe(dmabuf, next,
6267 &ras_fwlog->fwlog_buff_list,
6269 list_del(&dmabuf->list);
6270 dma_free_coherent(&phba->pcidev->dev,
6271 LPFC_RAS_MAX_ENTRY_SIZE,
6272 dmabuf->virt, dmabuf->phys);
6277 if (ras_fwlog->lwpd.virt) {
6278 dma_free_coherent(&phba->pcidev->dev,
6279 sizeof(uint32_t) * 2,
6280 ras_fwlog->lwpd.virt,
6281 ras_fwlog->lwpd.phys);
6282 ras_fwlog->lwpd.virt = NULL;
6285 spin_lock_irq(&phba->hbalock);
6286 ras_fwlog->state = INACTIVE;
6287 spin_unlock_irq(&phba->hbalock);
6291 * lpfc_sli4_ras_dma_alloc: Allocate memory for FW support
6292 * @phba: Pointer to HBA context object.
6293 * @fwlog_buff_count: Count of buffers to be created.
6295 * This routine DMA memory for Log Write Position Data[LPWD] and buffer
6296 * to update FW log is posted to the adapter.
6297 * Buffer count is calculated based on module param ras_fwlog_buffsize
6298 * Size of each buffer posted to FW is 64K.
6302 lpfc_sli4_ras_dma_alloc(struct lpfc_hba *phba,
6303 uint32_t fwlog_buff_count)
6305 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6306 struct lpfc_dmabuf *dmabuf;
6309 /* Initialize List */
6310 INIT_LIST_HEAD(&ras_fwlog->fwlog_buff_list);
6312 /* Allocate memory for the LWPD */
6313 ras_fwlog->lwpd.virt = dma_alloc_coherent(&phba->pcidev->dev,
6314 sizeof(uint32_t) * 2,
6315 &ras_fwlog->lwpd.phys,
6317 if (!ras_fwlog->lwpd.virt) {
6318 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6319 "6185 LWPD Memory Alloc Failed\n");
6324 ras_fwlog->fw_buffcount = fwlog_buff_count;
6325 for (i = 0; i < ras_fwlog->fw_buffcount; i++) {
6326 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
6330 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6331 "6186 Memory Alloc failed FW logging");
6335 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
6336 LPFC_RAS_MAX_ENTRY_SIZE,
6337 &dmabuf->phys, GFP_KERNEL);
6338 if (!dmabuf->virt) {
6341 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6342 "6187 DMA Alloc Failed FW logging");
6345 dmabuf->buffer_tag = i;
6346 list_add_tail(&dmabuf->list, &ras_fwlog->fwlog_buff_list);
6351 lpfc_sli4_ras_dma_free(phba);
6357 * lpfc_sli4_ras_mbox_cmpl: Completion handler for RAS MBX command
6358 * @phba: pointer to lpfc hba data structure.
6359 * @pmboxq: pointer to the driver internal queue element for mailbox command.
6361 * Completion handler for driver's RAS MBX command to the device.
6364 lpfc_sli4_ras_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
6367 union lpfc_sli4_cfg_shdr *shdr;
6368 uint32_t shdr_status, shdr_add_status;
6369 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6373 shdr = (union lpfc_sli4_cfg_shdr *)
6374 &pmb->u.mqe.un.ras_fwlog.header.cfg_shdr;
6375 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6376 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6378 if (mb->mbxStatus != MBX_SUCCESS || shdr_status) {
6379 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
6380 "6188 FW LOG mailbox "
6381 "completed with status x%x add_status x%x,"
6382 " mbx status x%x\n",
6383 shdr_status, shdr_add_status, mb->mbxStatus);
6385 ras_fwlog->ras_hwsupport = false;
6389 spin_lock_irq(&phba->hbalock);
6390 ras_fwlog->state = ACTIVE;
6391 spin_unlock_irq(&phba->hbalock);
6392 mempool_free(pmb, phba->mbox_mem_pool);
6397 /* Free RAS DMA memory */
6398 lpfc_sli4_ras_dma_free(phba);
6399 mempool_free(pmb, phba->mbox_mem_pool);
6403 * lpfc_sli4_ras_fwlog_init: Initialize memory and post RAS MBX command
6404 * @phba: pointer to lpfc hba data structure.
6405 * @fwlog_level: Logging verbosity level.
6406 * @fwlog_enable: Enable/Disable logging.
6408 * Initialize memory and post mailbox command to enable FW logging in host
6412 lpfc_sli4_ras_fwlog_init(struct lpfc_hba *phba,
6413 uint32_t fwlog_level,
6414 uint32_t fwlog_enable)
6416 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6417 struct lpfc_mbx_set_ras_fwlog *mbx_fwlog = NULL;
6418 struct lpfc_dmabuf *dmabuf;
6420 uint32_t len = 0, fwlog_buffsize, fwlog_entry_count;
6423 spin_lock_irq(&phba->hbalock);
6424 ras_fwlog->state = INACTIVE;
6425 spin_unlock_irq(&phba->hbalock);
6427 fwlog_buffsize = (LPFC_RAS_MIN_BUFF_POST_SIZE *
6428 phba->cfg_ras_fwlog_buffsize);
6429 fwlog_entry_count = (fwlog_buffsize/LPFC_RAS_MAX_ENTRY_SIZE);
6432 * If re-enabling FW logging support use earlier allocated
6433 * DMA buffers while posting MBX command.
6435 if (!ras_fwlog->lwpd.virt) {
6436 rc = lpfc_sli4_ras_dma_alloc(phba, fwlog_entry_count);
6438 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6439 "6189 FW Log Memory Allocation Failed");
6444 /* Setup Mailbox command */
6445 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6447 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6448 "6190 RAS MBX Alloc Failed");
6453 ras_fwlog->fw_loglevel = fwlog_level;
6454 len = (sizeof(struct lpfc_mbx_set_ras_fwlog) -
6455 sizeof(struct lpfc_sli4_cfg_mhdr));
6457 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_LOWLEVEL,
6458 LPFC_MBOX_OPCODE_SET_DIAG_LOG_OPTION,
6459 len, LPFC_SLI4_MBX_EMBED);
6461 mbx_fwlog = (struct lpfc_mbx_set_ras_fwlog *)&mbox->u.mqe.un.ras_fwlog;
6462 bf_set(lpfc_fwlog_enable, &mbx_fwlog->u.request,
6464 bf_set(lpfc_fwlog_loglvl, &mbx_fwlog->u.request,
6465 ras_fwlog->fw_loglevel);
6466 bf_set(lpfc_fwlog_buffcnt, &mbx_fwlog->u.request,
6467 ras_fwlog->fw_buffcount);
6468 bf_set(lpfc_fwlog_buffsz, &mbx_fwlog->u.request,
6469 LPFC_RAS_MAX_ENTRY_SIZE/SLI4_PAGE_SIZE);
6471 /* Update DMA buffer address */
6472 list_for_each_entry(dmabuf, &ras_fwlog->fwlog_buff_list, list) {
6473 memset(dmabuf->virt, 0, LPFC_RAS_MAX_ENTRY_SIZE);
6475 mbx_fwlog->u.request.buff_fwlog[dmabuf->buffer_tag].addr_lo =
6476 putPaddrLow(dmabuf->phys);
6478 mbx_fwlog->u.request.buff_fwlog[dmabuf->buffer_tag].addr_hi =
6479 putPaddrHigh(dmabuf->phys);
6482 /* Update LPWD address */
6483 mbx_fwlog->u.request.lwpd.addr_lo = putPaddrLow(ras_fwlog->lwpd.phys);
6484 mbx_fwlog->u.request.lwpd.addr_hi = putPaddrHigh(ras_fwlog->lwpd.phys);
6486 spin_lock_irq(&phba->hbalock);
6487 ras_fwlog->state = REG_INPROGRESS;
6488 spin_unlock_irq(&phba->hbalock);
6489 mbox->vport = phba->pport;
6490 mbox->mbox_cmpl = lpfc_sli4_ras_mbox_cmpl;
6492 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
6494 if (rc == MBX_NOT_FINISHED) {
6495 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6496 "6191 FW-Log Mailbox failed. "
6497 "status %d mbxStatus : x%x", rc,
6498 bf_get(lpfc_mqe_status, &mbox->u.mqe));
6499 mempool_free(mbox, phba->mbox_mem_pool);
6506 lpfc_sli4_ras_dma_free(phba);
6512 * lpfc_sli4_ras_setup - Check if RAS supported on the adapter
6513 * @phba: Pointer to HBA context object.
6515 * Check if RAS is supported on the adapter and initialize it.
6518 lpfc_sli4_ras_setup(struct lpfc_hba *phba)
6520 /* Check RAS FW Log needs to be enabled or not */
6521 if (lpfc_check_fwlog_support(phba))
6524 lpfc_sli4_ras_fwlog_init(phba, phba->cfg_ras_fwlog_level,
6525 LPFC_RAS_ENABLE_LOGGING);
6529 * lpfc_sli4_alloc_resource_identifiers - Allocate all SLI4 resource extents.
6530 * @phba: Pointer to HBA context object.
6532 * This function allocates all SLI4 resource identifiers.
6535 lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba *phba)
6537 int i, rc, error = 0;
6538 uint16_t count, base;
6539 unsigned long longs;
6541 if (!phba->sli4_hba.rpi_hdrs_in_use)
6542 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
6543 if (phba->sli4_hba.extents_in_use) {
6545 * The port supports resource extents. The XRI, VPI, VFI, RPI
6546 * resource extent count must be read and allocated before
6547 * provisioning the resource id arrays.
6549 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
6550 LPFC_IDX_RSRC_RDY) {
6552 * Extent-based resources are set - the driver could
6553 * be in a port reset. Figure out if any corrective
6554 * actions need to be taken.
6556 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
6557 LPFC_RSC_TYPE_FCOE_VFI);
6560 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
6561 LPFC_RSC_TYPE_FCOE_VPI);
6564 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
6565 LPFC_RSC_TYPE_FCOE_XRI);
6568 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
6569 LPFC_RSC_TYPE_FCOE_RPI);
6574 * It's possible that the number of resources
6575 * provided to this port instance changed between
6576 * resets. Detect this condition and reallocate
6577 * resources. Otherwise, there is no action.
6580 lpfc_printf_log(phba, KERN_INFO,
6581 LOG_MBOX | LOG_INIT,
6582 "2931 Detected extent resource "
6583 "change. Reallocating all "
6585 rc = lpfc_sli4_dealloc_extent(phba,
6586 LPFC_RSC_TYPE_FCOE_VFI);
6587 rc = lpfc_sli4_dealloc_extent(phba,
6588 LPFC_RSC_TYPE_FCOE_VPI);
6589 rc = lpfc_sli4_dealloc_extent(phba,
6590 LPFC_RSC_TYPE_FCOE_XRI);
6591 rc = lpfc_sli4_dealloc_extent(phba,
6592 LPFC_RSC_TYPE_FCOE_RPI);
6597 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
6601 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
6605 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
6609 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
6612 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
6617 * The port does not support resource extents. The XRI, VPI,
6618 * VFI, RPI resource ids were determined from READ_CONFIG.
6619 * Just allocate the bitmasks and provision the resource id
6620 * arrays. If a port reset is active, the resources don't
6621 * need any action - just exit.
6623 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
6624 LPFC_IDX_RSRC_RDY) {
6625 lpfc_sli4_dealloc_resource_identifiers(phba);
6626 lpfc_sli4_remove_rpis(phba);
6629 count = phba->sli4_hba.max_cfg_param.max_rpi;
6631 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6632 "3279 Invalid provisioning of "
6637 base = phba->sli4_hba.max_cfg_param.rpi_base;
6638 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6639 phba->sli4_hba.rpi_bmask = kcalloc(longs,
6640 sizeof(unsigned long),
6642 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
6646 phba->sli4_hba.rpi_ids = kcalloc(count, sizeof(uint16_t),
6648 if (unlikely(!phba->sli4_hba.rpi_ids)) {
6650 goto free_rpi_bmask;
6653 for (i = 0; i < count; i++)
6654 phba->sli4_hba.rpi_ids[i] = base + i;
6657 count = phba->sli4_hba.max_cfg_param.max_vpi;
6659 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6660 "3280 Invalid provisioning of "
6665 base = phba->sli4_hba.max_cfg_param.vpi_base;
6666 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6667 phba->vpi_bmask = kcalloc(longs, sizeof(unsigned long),
6669 if (unlikely(!phba->vpi_bmask)) {
6673 phba->vpi_ids = kcalloc(count, sizeof(uint16_t),
6675 if (unlikely(!phba->vpi_ids)) {
6677 goto free_vpi_bmask;
6680 for (i = 0; i < count; i++)
6681 phba->vpi_ids[i] = base + i;
6684 count = phba->sli4_hba.max_cfg_param.max_xri;
6686 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6687 "3281 Invalid provisioning of "
6692 base = phba->sli4_hba.max_cfg_param.xri_base;
6693 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6694 phba->sli4_hba.xri_bmask = kcalloc(longs,
6695 sizeof(unsigned long),
6697 if (unlikely(!phba->sli4_hba.xri_bmask)) {
6701 phba->sli4_hba.max_cfg_param.xri_used = 0;
6702 phba->sli4_hba.xri_ids = kcalloc(count, sizeof(uint16_t),
6704 if (unlikely(!phba->sli4_hba.xri_ids)) {
6706 goto free_xri_bmask;
6709 for (i = 0; i < count; i++)
6710 phba->sli4_hba.xri_ids[i] = base + i;
6713 count = phba->sli4_hba.max_cfg_param.max_vfi;
6715 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6716 "3282 Invalid provisioning of "
6721 base = phba->sli4_hba.max_cfg_param.vfi_base;
6722 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6723 phba->sli4_hba.vfi_bmask = kcalloc(longs,
6724 sizeof(unsigned long),
6726 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
6730 phba->sli4_hba.vfi_ids = kcalloc(count, sizeof(uint16_t),
6732 if (unlikely(!phba->sli4_hba.vfi_ids)) {
6734 goto free_vfi_bmask;
6737 for (i = 0; i < count; i++)
6738 phba->sli4_hba.vfi_ids[i] = base + i;
6741 * Mark all resources ready. An HBA reset doesn't need
6742 * to reset the initialization.
6744 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
6750 kfree(phba->sli4_hba.vfi_bmask);
6751 phba->sli4_hba.vfi_bmask = NULL;
6753 kfree(phba->sli4_hba.xri_ids);
6754 phba->sli4_hba.xri_ids = NULL;
6756 kfree(phba->sli4_hba.xri_bmask);
6757 phba->sli4_hba.xri_bmask = NULL;
6759 kfree(phba->vpi_ids);
6760 phba->vpi_ids = NULL;
6762 kfree(phba->vpi_bmask);
6763 phba->vpi_bmask = NULL;
6765 kfree(phba->sli4_hba.rpi_ids);
6766 phba->sli4_hba.rpi_ids = NULL;
6768 kfree(phba->sli4_hba.rpi_bmask);
6769 phba->sli4_hba.rpi_bmask = NULL;
6775 * lpfc_sli4_dealloc_resource_identifiers - Deallocate all SLI4 resource extents.
6776 * @phba: Pointer to HBA context object.
6778 * This function allocates the number of elements for the specified
6782 lpfc_sli4_dealloc_resource_identifiers(struct lpfc_hba *phba)
6784 if (phba->sli4_hba.extents_in_use) {
6785 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
6786 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
6787 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
6788 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
6790 kfree(phba->vpi_bmask);
6791 phba->sli4_hba.max_cfg_param.vpi_used = 0;
6792 kfree(phba->vpi_ids);
6793 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6794 kfree(phba->sli4_hba.xri_bmask);
6795 kfree(phba->sli4_hba.xri_ids);
6796 kfree(phba->sli4_hba.vfi_bmask);
6797 kfree(phba->sli4_hba.vfi_ids);
6798 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6799 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6806 * lpfc_sli4_get_allocated_extnts - Get the port's allocated extents.
6807 * @phba: Pointer to HBA context object.
6808 * @type: The resource extent type.
6809 * @extnt_count: buffer to hold port extent count response
6810 * @extnt_size: buffer to hold port extent size response.
6812 * This function calls the port to read the host allocated extents
6813 * for a particular type.
6816 lpfc_sli4_get_allocated_extnts(struct lpfc_hba *phba, uint16_t type,
6817 uint16_t *extnt_cnt, uint16_t *extnt_size)
6821 uint16_t curr_blks = 0;
6822 uint32_t req_len, emb_len;
6823 uint32_t alloc_len, mbox_tmo;
6824 struct list_head *blk_list_head;
6825 struct lpfc_rsrc_blks *rsrc_blk;
6827 void *virtaddr = NULL;
6828 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
6829 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
6830 union lpfc_sli4_cfg_shdr *shdr;
6833 case LPFC_RSC_TYPE_FCOE_VPI:
6834 blk_list_head = &phba->lpfc_vpi_blk_list;
6836 case LPFC_RSC_TYPE_FCOE_XRI:
6837 blk_list_head = &phba->sli4_hba.lpfc_xri_blk_list;
6839 case LPFC_RSC_TYPE_FCOE_VFI:
6840 blk_list_head = &phba->sli4_hba.lpfc_vfi_blk_list;
6842 case LPFC_RSC_TYPE_FCOE_RPI:
6843 blk_list_head = &phba->sli4_hba.lpfc_rpi_blk_list;
6849 /* Count the number of extents currently allocatd for this type. */
6850 list_for_each_entry(rsrc_blk, blk_list_head, list) {
6851 if (curr_blks == 0) {
6853 * The GET_ALLOCATED mailbox does not return the size,
6854 * just the count. The size should be just the size
6855 * stored in the current allocated block and all sizes
6856 * for an extent type are the same so set the return
6859 *extnt_size = rsrc_blk->rsrc_size;
6865 * Calculate the size of an embedded mailbox. The uint32_t
6866 * accounts for extents-specific word.
6868 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
6872 * Presume the allocation and response will fit into an embedded
6873 * mailbox. If not true, reconfigure to a non-embedded mailbox.
6875 emb = LPFC_SLI4_MBX_EMBED;
6877 if (req_len > emb_len) {
6878 req_len = curr_blks * sizeof(uint16_t) +
6879 sizeof(union lpfc_sli4_cfg_shdr) +
6881 emb = LPFC_SLI4_MBX_NEMBED;
6884 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6887 memset(mbox, 0, sizeof(LPFC_MBOXQ_t));
6889 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6890 LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT,
6892 if (alloc_len < req_len) {
6893 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6894 "2983 Allocated DMA memory size (x%x) is "
6895 "less than the requested DMA memory "
6896 "size (x%x)\n", alloc_len, req_len);
6900 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, curr_blks, type, emb);
6906 if (!phba->sli4_hba.intr_enable)
6907 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
6909 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
6910 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
6919 * Figure out where the response is located. Then get local pointers
6920 * to the response data. The port does not guarantee to respond to
6921 * all extents counts request so update the local variable with the
6922 * allocated count from the port.
6924 if (emb == LPFC_SLI4_MBX_EMBED) {
6925 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
6926 shdr = &rsrc_ext->header.cfg_shdr;
6927 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
6929 virtaddr = mbox->sge_array->addr[0];
6930 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
6931 shdr = &n_rsrc->cfg_shdr;
6932 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
6935 if (bf_get(lpfc_mbox_hdr_status, &shdr->response)) {
6936 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
6937 "2984 Failed to read allocated resources "
6938 "for type %d - Status 0x%x Add'l Status 0x%x.\n",
6940 bf_get(lpfc_mbox_hdr_status, &shdr->response),
6941 bf_get(lpfc_mbox_hdr_add_status, &shdr->response));
6946 lpfc_sli4_mbox_cmd_free(phba, mbox);
6951 * lpfc_sli4_repost_sgl_list - Repost the buffers sgl pages as block
6952 * @phba: pointer to lpfc hba data structure.
6953 * @pring: Pointer to driver SLI ring object.
6954 * @sgl_list: linked link of sgl buffers to post
6955 * @cnt: number of linked list buffers
6957 * This routine walks the list of buffers that have been allocated and
6958 * repost them to the port by using SGL block post. This is needed after a
6959 * pci_function_reset/warm_start or start. It attempts to construct blocks
6960 * of buffer sgls which contains contiguous xris and uses the non-embedded
6961 * SGL block post mailbox commands to post them to the port. For single
6962 * buffer sgl with non-contiguous xri, if any, it shall use embedded SGL post
6963 * mailbox command for posting.
6965 * Returns: 0 = success, non-zero failure.
6968 lpfc_sli4_repost_sgl_list(struct lpfc_hba *phba,
6969 struct list_head *sgl_list, int cnt)
6971 struct lpfc_sglq *sglq_entry = NULL;
6972 struct lpfc_sglq *sglq_entry_next = NULL;
6973 struct lpfc_sglq *sglq_entry_first = NULL;
6974 int status, total_cnt;
6975 int post_cnt = 0, num_posted = 0, block_cnt = 0;
6976 int last_xritag = NO_XRI;
6977 LIST_HEAD(prep_sgl_list);
6978 LIST_HEAD(blck_sgl_list);
6979 LIST_HEAD(allc_sgl_list);
6980 LIST_HEAD(post_sgl_list);
6981 LIST_HEAD(free_sgl_list);
6983 spin_lock_irq(&phba->hbalock);
6984 spin_lock(&phba->sli4_hba.sgl_list_lock);
6985 list_splice_init(sgl_list, &allc_sgl_list);
6986 spin_unlock(&phba->sli4_hba.sgl_list_lock);
6987 spin_unlock_irq(&phba->hbalock);
6990 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
6991 &allc_sgl_list, list) {
6992 list_del_init(&sglq_entry->list);
6994 if ((last_xritag != NO_XRI) &&
6995 (sglq_entry->sli4_xritag != last_xritag + 1)) {
6996 /* a hole in xri block, form a sgl posting block */
6997 list_splice_init(&prep_sgl_list, &blck_sgl_list);
6998 post_cnt = block_cnt - 1;
6999 /* prepare list for next posting block */
7000 list_add_tail(&sglq_entry->list, &prep_sgl_list);
7003 /* prepare list for next posting block */
7004 list_add_tail(&sglq_entry->list, &prep_sgl_list);
7005 /* enough sgls for non-embed sgl mbox command */
7006 if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
7007 list_splice_init(&prep_sgl_list,
7009 post_cnt = block_cnt;
7015 /* keep track of last sgl's xritag */
7016 last_xritag = sglq_entry->sli4_xritag;
7018 /* end of repost sgl list condition for buffers */
7019 if (num_posted == total_cnt) {
7020 if (post_cnt == 0) {
7021 list_splice_init(&prep_sgl_list,
7023 post_cnt = block_cnt;
7024 } else if (block_cnt == 1) {
7025 status = lpfc_sli4_post_sgl(phba,
7026 sglq_entry->phys, 0,
7027 sglq_entry->sli4_xritag);
7029 /* successful, put sgl to posted list */
7030 list_add_tail(&sglq_entry->list,
7033 /* Failure, put sgl to free list */
7034 lpfc_printf_log(phba, KERN_WARNING,
7036 "3159 Failed to post "
7037 "sgl, xritag:x%x\n",
7038 sglq_entry->sli4_xritag);
7039 list_add_tail(&sglq_entry->list,
7046 /* continue until a nembed page worth of sgls */
7050 /* post the buffer list sgls as a block */
7051 status = lpfc_sli4_post_sgl_list(phba, &blck_sgl_list,
7055 /* success, put sgl list to posted sgl list */
7056 list_splice_init(&blck_sgl_list, &post_sgl_list);
7058 /* Failure, put sgl list to free sgl list */
7059 sglq_entry_first = list_first_entry(&blck_sgl_list,
7062 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
7063 "3160 Failed to post sgl-list, "
7065 sglq_entry_first->sli4_xritag,
7066 (sglq_entry_first->sli4_xritag +
7068 list_splice_init(&blck_sgl_list, &free_sgl_list);
7069 total_cnt -= post_cnt;
7072 /* don't reset xirtag due to hole in xri block */
7074 last_xritag = NO_XRI;
7076 /* reset sgl post count for next round of posting */
7080 /* free the sgls failed to post */
7081 lpfc_free_sgl_list(phba, &free_sgl_list);
7083 /* push sgls posted to the available list */
7084 if (!list_empty(&post_sgl_list)) {
7085 spin_lock_irq(&phba->hbalock);
7086 spin_lock(&phba->sli4_hba.sgl_list_lock);
7087 list_splice_init(&post_sgl_list, sgl_list);
7088 spin_unlock(&phba->sli4_hba.sgl_list_lock);
7089 spin_unlock_irq(&phba->hbalock);
7091 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7092 "3161 Failure to post sgl to port.\n");
7096 /* return the number of XRIs actually posted */
7101 * lpfc_sli4_repost_io_sgl_list - Repost all the allocated nvme buffer sgls
7102 * @phba: pointer to lpfc hba data structure.
7104 * This routine walks the list of nvme buffers that have been allocated and
7105 * repost them to the port by using SGL block post. This is needed after a
7106 * pci_function_reset/warm_start or start. The lpfc_hba_down_post_s4 routine
7107 * is responsible for moving all nvme buffers on the lpfc_abts_nvme_sgl_list
7108 * to the lpfc_io_buf_list. If the repost fails, reject all nvme buffers.
7110 * Returns: 0 = success, non-zero failure.
7113 lpfc_sli4_repost_io_sgl_list(struct lpfc_hba *phba)
7115 LIST_HEAD(post_nblist);
7116 int num_posted, rc = 0;
7118 /* get all NVME buffers need to repost to a local list */
7119 lpfc_io_buf_flush(phba, &post_nblist);
7121 /* post the list of nvme buffer sgls to port if available */
7122 if (!list_empty(&post_nblist)) {
7123 num_posted = lpfc_sli4_post_io_sgl_list(
7124 phba, &post_nblist, phba->sli4_hba.io_xri_cnt);
7125 /* failed to post any nvme buffer, return error */
7126 if (num_posted == 0)
7133 lpfc_set_host_data(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
7137 len = sizeof(struct lpfc_mbx_set_host_data) -
7138 sizeof(struct lpfc_sli4_cfg_mhdr);
7139 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
7140 LPFC_MBOX_OPCODE_SET_HOST_DATA, len,
7141 LPFC_SLI4_MBX_EMBED);
7143 mbox->u.mqe.un.set_host_data.param_id = LPFC_SET_HOST_OS_DRIVER_VERSION;
7144 mbox->u.mqe.un.set_host_data.param_len =
7145 LPFC_HOST_OS_DRIVER_VERSION_SIZE;
7146 snprintf(mbox->u.mqe.un.set_host_data.data,
7147 LPFC_HOST_OS_DRIVER_VERSION_SIZE,
7148 "Linux %s v"LPFC_DRIVER_VERSION,
7149 (phba->hba_flag & HBA_FCOE_MODE) ? "FCoE" : "FC");
7153 lpfc_post_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *hrq,
7154 struct lpfc_queue *drq, int count, int idx)
7157 struct lpfc_rqe hrqe;
7158 struct lpfc_rqe drqe;
7159 struct lpfc_rqb *rqbp;
7160 unsigned long flags;
7161 struct rqb_dmabuf *rqb_buffer;
7162 LIST_HEAD(rqb_buf_list);
7164 spin_lock_irqsave(&phba->hbalock, flags);
7166 for (i = 0; i < count; i++) {
7167 /* IF RQ is already full, don't bother */
7168 if (rqbp->buffer_count + i >= rqbp->entry_count - 1)
7170 rqb_buffer = rqbp->rqb_alloc_buffer(phba);
7173 rqb_buffer->hrq = hrq;
7174 rqb_buffer->drq = drq;
7175 rqb_buffer->idx = idx;
7176 list_add_tail(&rqb_buffer->hbuf.list, &rqb_buf_list);
7178 while (!list_empty(&rqb_buf_list)) {
7179 list_remove_head(&rqb_buf_list, rqb_buffer, struct rqb_dmabuf,
7182 hrqe.address_lo = putPaddrLow(rqb_buffer->hbuf.phys);
7183 hrqe.address_hi = putPaddrHigh(rqb_buffer->hbuf.phys);
7184 drqe.address_lo = putPaddrLow(rqb_buffer->dbuf.phys);
7185 drqe.address_hi = putPaddrHigh(rqb_buffer->dbuf.phys);
7186 rc = lpfc_sli4_rq_put(hrq, drq, &hrqe, &drqe);
7188 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7189 "6421 Cannot post to HRQ %d: %x %x %x "
7197 rqbp->rqb_free_buffer(phba, rqb_buffer);
7199 list_add_tail(&rqb_buffer->hbuf.list,
7200 &rqbp->rqb_buffer_list);
7201 rqbp->buffer_count++;
7204 spin_unlock_irqrestore(&phba->hbalock, flags);
7209 * lpfc_sli4_hba_setup - SLI4 device initialization PCI function
7210 * @phba: Pointer to HBA context object.
7212 * This function is the main SLI4 device initialization PCI function. This
7213 * function is called by the HBA initialization code, HBA reset code and
7214 * HBA error attention handler code. Caller is not required to hold any
7218 lpfc_sli4_hba_setup(struct lpfc_hba *phba)
7220 int rc, i, cnt, len, dd;
7221 LPFC_MBOXQ_t *mboxq;
7222 struct lpfc_mqe *mqe;
7225 uint32_t ftr_rsp = 0;
7226 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
7227 struct lpfc_vport *vport = phba->pport;
7228 struct lpfc_dmabuf *mp;
7229 struct lpfc_rqb *rqbp;
7231 /* Perform a PCI function reset to start from clean */
7232 rc = lpfc_pci_function_reset(phba);
7236 /* Check the HBA Host Status Register for readyness */
7237 rc = lpfc_sli4_post_status_check(phba);
7241 spin_lock_irq(&phba->hbalock);
7242 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
7243 spin_unlock_irq(&phba->hbalock);
7247 * Allocate a single mailbox container for initializing the
7250 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7254 /* Issue READ_REV to collect vpd and FW information. */
7255 vpd_size = SLI4_PAGE_SIZE;
7256 vpd = kzalloc(vpd_size, GFP_KERNEL);
7262 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
7268 mqe = &mboxq->u.mqe;
7269 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
7270 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev)) {
7271 phba->hba_flag |= HBA_FCOE_MODE;
7272 phba->fcp_embed_io = 0; /* SLI4 FC support only */
7274 phba->hba_flag &= ~HBA_FCOE_MODE;
7277 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
7279 phba->hba_flag |= HBA_FIP_SUPPORT;
7281 phba->hba_flag &= ~HBA_FIP_SUPPORT;
7283 phba->hba_flag &= ~HBA_IOQ_FLUSH;
7285 if (phba->sli_rev != LPFC_SLI_REV4) {
7286 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7287 "0376 READ_REV Error. SLI Level %d "
7288 "FCoE enabled %d\n",
7289 phba->sli_rev, phba->hba_flag & HBA_FCOE_MODE);
7296 * Continue initialization with default values even if driver failed
7297 * to read FCoE param config regions, only read parameters if the
7300 if (phba->hba_flag & HBA_FCOE_MODE &&
7301 lpfc_sli4_read_fcoe_params(phba))
7302 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_INIT,
7303 "2570 Failed to read FCoE parameters\n");
7306 * Retrieve sli4 device physical port name, failure of doing it
7307 * is considered as non-fatal.
7309 rc = lpfc_sli4_retrieve_pport_name(phba);
7311 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7312 "3080 Successful retrieving SLI4 device "
7313 "physical port name: %s.\n", phba->Port);
7315 rc = lpfc_sli4_get_ctl_attr(phba);
7317 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7318 "8351 Successful retrieving SLI4 device "
7322 * Evaluate the read rev and vpd data. Populate the driver
7323 * state with the results. If this routine fails, the failure
7324 * is not fatal as the driver will use generic values.
7326 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
7327 if (unlikely(!rc)) {
7328 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7329 "0377 Error %d parsing vpd. "
7330 "Using defaults.\n", rc);
7335 /* Save information as VPD data */
7336 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
7337 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
7340 * This is because first G7 ASIC doesn't support the standard
7341 * 0x5a NVME cmd descriptor type/subtype
7343 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
7344 LPFC_SLI_INTF_IF_TYPE_6) &&
7345 (phba->vpd.rev.biuRev == LPFC_G7_ASIC_1) &&
7346 (phba->vpd.rev.smRev == 0) &&
7347 (phba->cfg_nvme_embed_cmd == 1))
7348 phba->cfg_nvme_embed_cmd = 0;
7350 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
7351 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
7353 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
7355 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
7357 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
7359 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
7360 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
7361 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
7362 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
7363 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
7364 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
7365 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7366 "(%d):0380 READ_REV Status x%x "
7367 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
7368 mboxq->vport ? mboxq->vport->vpi : 0,
7369 bf_get(lpfc_mqe_status, mqe),
7370 phba->vpd.rev.opFwName,
7371 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
7372 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
7374 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
7375 LPFC_SLI_INTF_IF_TYPE_0) {
7376 lpfc_set_features(phba, mboxq, LPFC_SET_UE_RECOVERY);
7377 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7378 if (rc == MBX_SUCCESS) {
7379 phba->hba_flag |= HBA_RECOVERABLE_UE;
7380 /* Set 1Sec interval to detect UE */
7381 phba->eratt_poll_interval = 1;
7382 phba->sli4_hba.ue_to_sr = bf_get(
7383 lpfc_mbx_set_feature_UESR,
7384 &mboxq->u.mqe.un.set_feature);
7385 phba->sli4_hba.ue_to_rp = bf_get(
7386 lpfc_mbx_set_feature_UERP,
7387 &mboxq->u.mqe.un.set_feature);
7391 if (phba->cfg_enable_mds_diags && phba->mds_diags_support) {
7392 /* Enable MDS Diagnostics only if the SLI Port supports it */
7393 lpfc_set_features(phba, mboxq, LPFC_SET_MDS_DIAGS);
7394 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7395 if (rc != MBX_SUCCESS)
7396 phba->mds_diags_support = 0;
7400 * Discover the port's supported feature set and match it against the
7403 lpfc_request_features(phba, mboxq);
7404 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7411 * The port must support FCP initiator mode as this is the
7412 * only mode running in the host.
7414 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
7415 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7416 "0378 No support for fcpi mode.\n");
7420 /* Performance Hints are ONLY for FCoE */
7421 if (phba->hba_flag & HBA_FCOE_MODE) {
7422 if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh, &mqe->un.req_ftrs))
7423 phba->sli3_options |= LPFC_SLI4_PERFH_ENABLED;
7425 phba->sli3_options &= ~LPFC_SLI4_PERFH_ENABLED;
7429 * If the port cannot support the host's requested features
7430 * then turn off the global config parameters to disable the
7431 * feature in the driver. This is not a fatal error.
7433 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
7434 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))) {
7435 phba->cfg_enable_bg = 0;
7436 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
7441 if (phba->max_vpi && phba->cfg_enable_npiv &&
7442 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
7446 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7447 "0379 Feature Mismatch Data: x%08x %08x "
7448 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
7449 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
7450 phba->cfg_enable_npiv, phba->max_vpi);
7451 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
7452 phba->cfg_enable_bg = 0;
7453 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
7454 phba->cfg_enable_npiv = 0;
7457 /* These SLI3 features are assumed in SLI4 */
7458 spin_lock_irq(&phba->hbalock);
7459 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
7460 spin_unlock_irq(&phba->hbalock);
7462 /* Always try to enable dual dump feature if we can */
7463 lpfc_set_features(phba, mboxq, LPFC_SET_DUAL_DUMP);
7464 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7465 dd = bf_get(lpfc_mbx_set_feature_dd, &mboxq->u.mqe.un.set_feature);
7466 if ((rc == MBX_SUCCESS) && (dd == LPFC_ENABLE_DUAL_DUMP))
7467 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_INIT,
7468 "6448 Dual Dump is enabled\n");
7470 lpfc_printf_log(phba, KERN_INFO, LOG_SLI | LOG_INIT,
7471 "6447 Dual Dump Mailbox x%x (x%x/x%x) failed, "
7473 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
7474 lpfc_sli_config_mbox_subsys_get(
7476 lpfc_sli_config_mbox_opcode_get(
7480 * Allocate all resources (xri,rpi,vpi,vfi) now. Subsequent
7481 * calls depends on these resources to complete port setup.
7483 rc = lpfc_sli4_alloc_resource_identifiers(phba);
7485 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7486 "2920 Failed to alloc Resource IDs "
7491 lpfc_set_host_data(phba, mboxq);
7493 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7495 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7496 "2134 Failed to set host os driver version %x",
7500 /* Read the port's service parameters. */
7501 rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
7503 phba->link_state = LPFC_HBA_ERROR;
7508 mboxq->vport = vport;
7509 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7510 mp = (struct lpfc_dmabuf *)mboxq->ctx_buf;
7511 if (rc == MBX_SUCCESS) {
7512 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
7517 * This memory was allocated by the lpfc_read_sparam routine. Release
7518 * it to the mbuf pool.
7520 lpfc_mbuf_free(phba, mp->virt, mp->phys);
7522 mboxq->ctx_buf = NULL;
7524 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7525 "0382 READ_SPARAM command failed "
7526 "status %d, mbxStatus x%x\n",
7527 rc, bf_get(lpfc_mqe_status, mqe));
7528 phba->link_state = LPFC_HBA_ERROR;
7533 lpfc_update_vport_wwn(vport);
7535 /* Update the fc_host data structures with new wwn. */
7536 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
7537 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
7539 /* Create all the SLI4 queues */
7540 rc = lpfc_sli4_queue_create(phba);
7542 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7543 "3089 Failed to allocate queues\n");
7547 /* Set up all the queues to the device */
7548 rc = lpfc_sli4_queue_setup(phba);
7550 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7551 "0381 Error %d during queue setup.\n ", rc);
7552 goto out_stop_timers;
7554 /* Initialize the driver internal SLI layer lists. */
7555 lpfc_sli4_setup(phba);
7556 lpfc_sli4_queue_init(phba);
7558 /* update host els xri-sgl sizes and mappings */
7559 rc = lpfc_sli4_els_sgl_update(phba);
7561 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7562 "1400 Failed to update xri-sgl size and "
7563 "mapping: %d\n", rc);
7564 goto out_destroy_queue;
7567 /* register the els sgl pool to the port */
7568 rc = lpfc_sli4_repost_sgl_list(phba, &phba->sli4_hba.lpfc_els_sgl_list,
7569 phba->sli4_hba.els_xri_cnt);
7570 if (unlikely(rc < 0)) {
7571 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7572 "0582 Error %d during els sgl post "
7575 goto out_destroy_queue;
7577 phba->sli4_hba.els_xri_cnt = rc;
7579 if (phba->nvmet_support) {
7580 /* update host nvmet xri-sgl sizes and mappings */
7581 rc = lpfc_sli4_nvmet_sgl_update(phba);
7583 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7584 "6308 Failed to update nvmet-sgl size "
7585 "and mapping: %d\n", rc);
7586 goto out_destroy_queue;
7589 /* register the nvmet sgl pool to the port */
7590 rc = lpfc_sli4_repost_sgl_list(
7592 &phba->sli4_hba.lpfc_nvmet_sgl_list,
7593 phba->sli4_hba.nvmet_xri_cnt);
7594 if (unlikely(rc < 0)) {
7595 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7596 "3117 Error %d during nvmet "
7599 goto out_destroy_queue;
7601 phba->sli4_hba.nvmet_xri_cnt = rc;
7603 /* We allocate an iocbq for every receive context SGL.
7604 * The additional allocation is for abort and ls handling.
7606 cnt = phba->sli4_hba.nvmet_xri_cnt +
7607 phba->sli4_hba.max_cfg_param.max_xri;
7609 /* update host common xri-sgl sizes and mappings */
7610 rc = lpfc_sli4_io_sgl_update(phba);
7612 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7613 "6082 Failed to update nvme-sgl size "
7614 "and mapping: %d\n", rc);
7615 goto out_destroy_queue;
7618 /* register the allocated common sgl pool to the port */
7619 rc = lpfc_sli4_repost_io_sgl_list(phba);
7621 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7622 "6116 Error %d during nvme sgl post "
7624 /* Some NVME buffers were moved to abort nvme list */
7625 /* A pci function reset will repost them */
7627 goto out_destroy_queue;
7629 /* Each lpfc_io_buf job structure has an iocbq element.
7630 * This cnt provides for abort, els, ct and ls requests.
7632 cnt = phba->sli4_hba.max_cfg_param.max_xri;
7635 if (!phba->sli.iocbq_lookup) {
7636 /* Initialize and populate the iocb list per host */
7637 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7638 "2821 initialize iocb list with %d entries\n",
7640 rc = lpfc_init_iocb_list(phba, cnt);
7642 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7643 "1413 Failed to init iocb list.\n");
7644 goto out_destroy_queue;
7648 if (phba->nvmet_support)
7649 lpfc_nvmet_create_targetport(phba);
7651 if (phba->nvmet_support && phba->cfg_nvmet_mrq) {
7652 /* Post initial buffers to all RQs created */
7653 for (i = 0; i < phba->cfg_nvmet_mrq; i++) {
7654 rqbp = phba->sli4_hba.nvmet_mrq_hdr[i]->rqbp;
7655 INIT_LIST_HEAD(&rqbp->rqb_buffer_list);
7656 rqbp->rqb_alloc_buffer = lpfc_sli4_nvmet_alloc;
7657 rqbp->rqb_free_buffer = lpfc_sli4_nvmet_free;
7658 rqbp->entry_count = LPFC_NVMET_RQE_DEF_COUNT;
7659 rqbp->buffer_count = 0;
7661 lpfc_post_rq_buffer(
7662 phba, phba->sli4_hba.nvmet_mrq_hdr[i],
7663 phba->sli4_hba.nvmet_mrq_data[i],
7664 phba->cfg_nvmet_mrq_post, i);
7668 /* Post the rpi header region to the device. */
7669 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
7671 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7672 "0393 Error %d during rpi post operation\n",
7675 goto out_destroy_queue;
7677 lpfc_sli4_node_prep(phba);
7679 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
7680 if ((phba->nvmet_support == 0) || (phba->cfg_nvmet_mrq == 1)) {
7682 * The FC Port needs to register FCFI (index 0)
7684 lpfc_reg_fcfi(phba, mboxq);
7685 mboxq->vport = phba->pport;
7686 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7687 if (rc != MBX_SUCCESS)
7688 goto out_unset_queue;
7690 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi,
7691 &mboxq->u.mqe.un.reg_fcfi);
7693 /* We are a NVME Target mode with MRQ > 1 */
7695 /* First register the FCFI */
7696 lpfc_reg_fcfi_mrq(phba, mboxq, 0);
7697 mboxq->vport = phba->pport;
7698 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7699 if (rc != MBX_SUCCESS)
7700 goto out_unset_queue;
7702 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_mrq_fcfi,
7703 &mboxq->u.mqe.un.reg_fcfi_mrq);
7705 /* Next register the MRQs */
7706 lpfc_reg_fcfi_mrq(phba, mboxq, 1);
7707 mboxq->vport = phba->pport;
7708 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7709 if (rc != MBX_SUCCESS)
7710 goto out_unset_queue;
7713 /* Check if the port is configured to be disabled */
7714 lpfc_sli_read_link_ste(phba);
7717 /* Don't post more new bufs if repost already recovered
7720 if (phba->nvmet_support == 0) {
7721 if (phba->sli4_hba.io_xri_cnt == 0) {
7722 len = lpfc_new_io_buf(
7723 phba, phba->sli4_hba.io_xri_max);
7726 goto out_unset_queue;
7729 if (phba->cfg_xri_rebalancing)
7730 lpfc_create_multixri_pools(phba);
7733 phba->cfg_xri_rebalancing = 0;
7736 /* Allow asynchronous mailbox command to go through */
7737 spin_lock_irq(&phba->hbalock);
7738 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7739 spin_unlock_irq(&phba->hbalock);
7741 /* Post receive buffers to the device */
7742 lpfc_sli4_rb_setup(phba);
7744 /* Reset HBA FCF states after HBA reset */
7745 phba->fcf.fcf_flag = 0;
7746 phba->fcf.current_rec.flag = 0;
7748 /* Start the ELS watchdog timer */
7749 mod_timer(&vport->els_tmofunc,
7750 jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov * 2)));
7752 /* Start heart beat timer */
7753 mod_timer(&phba->hb_tmofunc,
7754 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
7755 phba->hb_outstanding = 0;
7756 phba->last_completion_time = jiffies;
7758 /* start eq_delay heartbeat */
7759 if (phba->cfg_auto_imax)
7760 queue_delayed_work(phba->wq, &phba->eq_delay_work,
7761 msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
7763 /* Start error attention (ERATT) polling timer */
7764 mod_timer(&phba->eratt_poll,
7765 jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
7767 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
7768 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
7769 rc = pci_enable_pcie_error_reporting(phba->pcidev);
7771 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7772 "2829 This device supports "
7773 "Advanced Error Reporting (AER)\n");
7774 spin_lock_irq(&phba->hbalock);
7775 phba->hba_flag |= HBA_AER_ENABLED;
7776 spin_unlock_irq(&phba->hbalock);
7778 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7779 "2830 This device does not support "
7780 "Advanced Error Reporting (AER)\n");
7781 phba->cfg_aer_support = 0;
7787 * The port is ready, set the host's link state to LINK_DOWN
7788 * in preparation for link interrupts.
7790 spin_lock_irq(&phba->hbalock);
7791 phba->link_state = LPFC_LINK_DOWN;
7793 /* Check if physical ports are trunked */
7794 if (bf_get(lpfc_conf_trunk_port0, &phba->sli4_hba))
7795 phba->trunk_link.link0.state = LPFC_LINK_DOWN;
7796 if (bf_get(lpfc_conf_trunk_port1, &phba->sli4_hba))
7797 phba->trunk_link.link1.state = LPFC_LINK_DOWN;
7798 if (bf_get(lpfc_conf_trunk_port2, &phba->sli4_hba))
7799 phba->trunk_link.link2.state = LPFC_LINK_DOWN;
7800 if (bf_get(lpfc_conf_trunk_port3, &phba->sli4_hba))
7801 phba->trunk_link.link3.state = LPFC_LINK_DOWN;
7802 spin_unlock_irq(&phba->hbalock);
7804 /* Arm the CQs and then EQs on device */
7805 lpfc_sli4_arm_cqeq_intr(phba);
7807 /* Indicate device interrupt mode */
7808 phba->sli4_hba.intr_enable = 1;
7810 if (!(phba->hba_flag & HBA_FCOE_MODE) &&
7811 (phba->hba_flag & LINK_DISABLED)) {
7812 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
7813 "3103 Adapter Link is disabled.\n");
7814 lpfc_down_link(phba, mboxq);
7815 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7816 if (rc != MBX_SUCCESS) {
7817 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
7818 "3104 Adapter failed to issue "
7819 "DOWN_LINK mbox cmd, rc:x%x\n", rc);
7820 goto out_io_buff_free;
7822 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
7823 /* don't perform init_link on SLI4 FC port loopback test */
7824 if (!(phba->link_flag & LS_LOOPBACK_MODE)) {
7825 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
7827 goto out_io_buff_free;
7830 mempool_free(mboxq, phba->mbox_mem_pool);
7833 /* Free allocated IO Buffers */
7836 /* Unset all the queues set up in this routine when error out */
7837 lpfc_sli4_queue_unset(phba);
7839 lpfc_free_iocb_list(phba);
7840 lpfc_sli4_queue_destroy(phba);
7842 lpfc_stop_hba_timers(phba);
7844 mempool_free(mboxq, phba->mbox_mem_pool);
7849 * lpfc_mbox_timeout - Timeout call back function for mbox timer
7850 * @ptr: context object - pointer to hba structure.
7852 * This is the callback function for mailbox timer. The mailbox
7853 * timer is armed when a new mailbox command is issued and the timer
7854 * is deleted when the mailbox complete. The function is called by
7855 * the kernel timer code when a mailbox does not complete within
7856 * expected time. This function wakes up the worker thread to
7857 * process the mailbox timeout and returns. All the processing is
7858 * done by the worker thread function lpfc_mbox_timeout_handler.
7861 lpfc_mbox_timeout(struct timer_list *t)
7863 struct lpfc_hba *phba = from_timer(phba, t, sli.mbox_tmo);
7864 unsigned long iflag;
7865 uint32_t tmo_posted;
7867 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
7868 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
7870 phba->pport->work_port_events |= WORKER_MBOX_TMO;
7871 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
7874 lpfc_worker_wake_up(phba);
7879 * lpfc_sli4_mbox_completions_pending - check to see if any mailbox completions
7881 * @phba: Pointer to HBA context object.
7883 * This function checks if any mailbox completions are present on the mailbox
7887 lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba)
7891 struct lpfc_queue *mcq;
7892 struct lpfc_mcqe *mcqe;
7893 bool pending_completions = false;
7896 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
7899 /* Check for completions on mailbox completion queue */
7901 mcq = phba->sli4_hba.mbx_cq;
7902 idx = mcq->hba_index;
7903 qe_valid = mcq->qe_valid;
7904 while (bf_get_le32(lpfc_cqe_valid,
7905 (struct lpfc_cqe *)lpfc_sli4_qe(mcq, idx)) == qe_valid) {
7906 mcqe = (struct lpfc_mcqe *)(lpfc_sli4_qe(mcq, idx));
7907 if (bf_get_le32(lpfc_trailer_completed, mcqe) &&
7908 (!bf_get_le32(lpfc_trailer_async, mcqe))) {
7909 pending_completions = true;
7912 idx = (idx + 1) % mcq->entry_count;
7913 if (mcq->hba_index == idx)
7916 /* if the index wrapped around, toggle the valid bit */
7917 if (phba->sli4_hba.pc_sli4_params.cqav && !idx)
7918 qe_valid = (qe_valid) ? 0 : 1;
7920 return pending_completions;
7925 * lpfc_sli4_process_missed_mbox_completions - process mbox completions
7927 * @phba: Pointer to HBA context object.
7929 * For sli4, it is possible to miss an interrupt. As such mbox completions
7930 * maybe missed causing erroneous mailbox timeouts to occur. This function
7931 * checks to see if mbox completions are on the mailbox completion queue
7932 * and will process all the completions associated with the eq for the
7933 * mailbox completion queue.
7936 lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba)
7938 struct lpfc_sli4_hba *sli4_hba = &phba->sli4_hba;
7940 struct lpfc_queue *fpeq = NULL;
7941 struct lpfc_queue *eq;
7944 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
7947 /* Find the EQ associated with the mbox CQ */
7948 if (sli4_hba->hdwq) {
7949 for (eqidx = 0; eqidx < phba->cfg_irq_chann; eqidx++) {
7950 eq = phba->sli4_hba.hba_eq_hdl[eqidx].eq;
7951 if (eq && eq->queue_id == sli4_hba->mbx_cq->assoc_qid) {
7960 /* Turn off interrupts from this EQ */
7962 sli4_hba->sli4_eq_clr_intr(fpeq);
7964 /* Check to see if a mbox completion is pending */
7966 mbox_pending = lpfc_sli4_mbox_completions_pending(phba);
7969 * If a mbox completion is pending, process all the events on EQ
7970 * associated with the mbox completion queue (this could include
7971 * mailbox commands, async events, els commands, receive queue data
7976 /* process and rearm the EQ */
7977 lpfc_sli4_process_eq(phba, fpeq, LPFC_QUEUE_REARM);
7979 /* Always clear and re-arm the EQ */
7980 sli4_hba->sli4_write_eq_db(phba, fpeq, 0, LPFC_QUEUE_REARM);
7982 return mbox_pending;
7987 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
7988 * @phba: Pointer to HBA context object.
7990 * This function is called from worker thread when a mailbox command times out.
7991 * The caller is not required to hold any locks. This function will reset the
7992 * HBA and recover all the pending commands.
7995 lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
7997 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
7998 MAILBOX_t *mb = NULL;
8000 struct lpfc_sli *psli = &phba->sli;
8002 /* If the mailbox completed, process the completion and return */
8003 if (lpfc_sli4_process_missed_mbox_completions(phba))
8008 /* Check the pmbox pointer first. There is a race condition
8009 * between the mbox timeout handler getting executed in the
8010 * worklist and the mailbox actually completing. When this
8011 * race condition occurs, the mbox_active will be NULL.
8013 spin_lock_irq(&phba->hbalock);
8014 if (pmbox == NULL) {
8015 lpfc_printf_log(phba, KERN_WARNING,
8017 "0353 Active Mailbox cleared - mailbox timeout "
8019 spin_unlock_irq(&phba->hbalock);
8023 /* Mbox cmd <mbxCommand> timeout */
8024 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8025 "0310 Mailbox command x%x timeout Data: x%x x%x x%px\n",
8027 phba->pport->port_state,
8029 phba->sli.mbox_active);
8030 spin_unlock_irq(&phba->hbalock);
8032 /* Setting state unknown so lpfc_sli_abort_iocb_ring
8033 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
8034 * it to fail all outstanding SCSI IO.
8036 spin_lock_irq(&phba->pport->work_port_lock);
8037 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
8038 spin_unlock_irq(&phba->pport->work_port_lock);
8039 spin_lock_irq(&phba->hbalock);
8040 phba->link_state = LPFC_LINK_UNKNOWN;
8041 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
8042 spin_unlock_irq(&phba->hbalock);
8044 lpfc_sli_abort_fcp_rings(phba);
8046 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8047 "0345 Resetting board due to mailbox timeout\n");
8049 /* Reset the HBA device */
8050 lpfc_reset_hba(phba);
8054 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
8055 * @phba: Pointer to HBA context object.
8056 * @pmbox: Pointer to mailbox object.
8057 * @flag: Flag indicating how the mailbox need to be processed.
8059 * This function is called by discovery code and HBA management code
8060 * to submit a mailbox command to firmware with SLI-3 interface spec. This
8061 * function gets the hbalock to protect the data structures.
8062 * The mailbox command can be submitted in polling mode, in which case
8063 * this function will wait in a polling loop for the completion of the
8065 * If the mailbox is submitted in no_wait mode (not polling) the
8066 * function will submit the command and returns immediately without waiting
8067 * for the mailbox completion. The no_wait is supported only when HBA
8068 * is in SLI2/SLI3 mode - interrupts are enabled.
8069 * The SLI interface allows only one mailbox pending at a time. If the
8070 * mailbox is issued in polling mode and there is already a mailbox
8071 * pending, then the function will return an error. If the mailbox is issued
8072 * in NO_WAIT mode and there is a mailbox pending already, the function
8073 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
8074 * The sli layer owns the mailbox object until the completion of mailbox
8075 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
8076 * return codes the caller owns the mailbox command after the return of
8080 lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
8084 struct lpfc_sli *psli = &phba->sli;
8085 uint32_t status, evtctr;
8086 uint32_t ha_copy, hc_copy;
8088 unsigned long timeout;
8089 unsigned long drvr_flag = 0;
8090 uint32_t word0, ldata;
8091 void __iomem *to_slim;
8092 int processing_queue = 0;
8094 spin_lock_irqsave(&phba->hbalock, drvr_flag);
8096 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8097 /* processing mbox queue from intr_handler */
8098 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
8099 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8102 processing_queue = 1;
8103 pmbox = lpfc_mbox_get(phba);
8105 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8110 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
8111 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
8113 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8114 lpfc_printf_log(phba, KERN_ERR,
8115 LOG_MBOX | LOG_VPORT,
8116 "1806 Mbox x%x failed. No vport\n",
8117 pmbox->u.mb.mbxCommand);
8119 goto out_not_finished;
8123 /* If the PCI channel is in offline state, do not post mbox. */
8124 if (unlikely(pci_channel_offline(phba->pcidev))) {
8125 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8126 goto out_not_finished;
8129 /* If HBA has a deferred error attention, fail the iocb. */
8130 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
8131 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8132 goto out_not_finished;
8138 status = MBX_SUCCESS;
8140 if (phba->link_state == LPFC_HBA_ERROR) {
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):0311 Mailbox command x%x cannot "
8146 "issue Data: x%x x%x\n",
8147 pmbox->vport ? pmbox->vport->vpi : 0,
8148 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
8149 goto out_not_finished;
8152 if (mbx->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT) {
8153 if (lpfc_readl(phba->HCregaddr, &hc_copy) ||
8154 !(hc_copy & HC_MBINT_ENA)) {
8155 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8156 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8157 "(%d):2528 Mailbox command x%x cannot "
8158 "issue Data: x%x x%x\n",
8159 pmbox->vport ? pmbox->vport->vpi : 0,
8160 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
8161 goto out_not_finished;
8165 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8166 /* Polling for a mbox command when another one is already active
8167 * is not allowed in SLI. Also, the driver must have established
8168 * SLI2 mode to queue and process multiple mbox commands.
8171 if (flag & MBX_POLL) {
8172 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8174 /* Mbox command <mbxCommand> cannot issue */
8175 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8176 "(%d):2529 Mailbox command x%x "
8177 "cannot issue Data: x%x x%x\n",
8178 pmbox->vport ? pmbox->vport->vpi : 0,
8179 pmbox->u.mb.mbxCommand,
8180 psli->sli_flag, flag);
8181 goto out_not_finished;
8184 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
8185 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8186 /* Mbox command <mbxCommand> cannot issue */
8187 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8188 "(%d):2530 Mailbox command x%x "
8189 "cannot issue Data: x%x x%x\n",
8190 pmbox->vport ? pmbox->vport->vpi : 0,
8191 pmbox->u.mb.mbxCommand,
8192 psli->sli_flag, flag);
8193 goto out_not_finished;
8196 /* Another mailbox command is still being processed, queue this
8197 * command to be processed later.
8199 lpfc_mbox_put(phba, pmbox);
8201 /* Mbox cmd issue - BUSY */
8202 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8203 "(%d):0308 Mbox cmd issue - BUSY Data: "
8204 "x%x x%x x%x x%x\n",
8205 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
8207 phba->pport ? phba->pport->port_state : 0xff,
8208 psli->sli_flag, flag);
8210 psli->slistat.mbox_busy++;
8211 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8214 lpfc_debugfs_disc_trc(pmbox->vport,
8215 LPFC_DISC_TRC_MBOX_VPORT,
8216 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
8217 (uint32_t)mbx->mbxCommand,
8218 mbx->un.varWords[0], mbx->un.varWords[1]);
8221 lpfc_debugfs_disc_trc(phba->pport,
8223 "MBOX Bsy: cmd:x%x mb:x%x x%x",
8224 (uint32_t)mbx->mbxCommand,
8225 mbx->un.varWords[0], mbx->un.varWords[1]);
8231 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
8233 /* If we are not polling, we MUST be in SLI2 mode */
8234 if (flag != MBX_POLL) {
8235 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
8236 (mbx->mbxCommand != MBX_KILL_BOARD)) {
8237 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8238 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8239 /* Mbox command <mbxCommand> cannot issue */
8240 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8241 "(%d):2531 Mailbox command x%x "
8242 "cannot issue Data: x%x x%x\n",
8243 pmbox->vport ? pmbox->vport->vpi : 0,
8244 pmbox->u.mb.mbxCommand,
8245 psli->sli_flag, flag);
8246 goto out_not_finished;
8248 /* timeout active mbox command */
8249 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
8251 mod_timer(&psli->mbox_tmo, jiffies + timeout);
8254 /* Mailbox cmd <cmd> issue */
8255 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8256 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
8258 pmbox->vport ? pmbox->vport->vpi : 0,
8260 phba->pport ? phba->pport->port_state : 0xff,
8261 psli->sli_flag, flag);
8263 if (mbx->mbxCommand != MBX_HEARTBEAT) {
8265 lpfc_debugfs_disc_trc(pmbox->vport,
8266 LPFC_DISC_TRC_MBOX_VPORT,
8267 "MBOX Send vport: cmd:x%x mb:x%x x%x",
8268 (uint32_t)mbx->mbxCommand,
8269 mbx->un.varWords[0], mbx->un.varWords[1]);
8272 lpfc_debugfs_disc_trc(phba->pport,
8274 "MBOX Send: cmd:x%x mb:x%x x%x",
8275 (uint32_t)mbx->mbxCommand,
8276 mbx->un.varWords[0], mbx->un.varWords[1]);
8280 psli->slistat.mbox_cmd++;
8281 evtctr = psli->slistat.mbox_event;
8283 /* next set own bit for the adapter and copy over command word */
8284 mbx->mbxOwner = OWN_CHIP;
8286 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
8287 /* Populate mbox extension offset word. */
8288 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) {
8289 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
8290 = (uint8_t *)phba->mbox_ext
8291 - (uint8_t *)phba->mbox;
8294 /* Copy the mailbox extension data */
8295 if (pmbox->in_ext_byte_len && pmbox->ctx_buf) {
8296 lpfc_sli_pcimem_bcopy(pmbox->ctx_buf,
8297 (uint8_t *)phba->mbox_ext,
8298 pmbox->in_ext_byte_len);
8300 /* Copy command data to host SLIM area */
8301 lpfc_sli_pcimem_bcopy(mbx, phba->mbox, MAILBOX_CMD_SIZE);
8303 /* Populate mbox extension offset word. */
8304 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len)
8305 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
8306 = MAILBOX_HBA_EXT_OFFSET;
8308 /* Copy the mailbox extension data */
8309 if (pmbox->in_ext_byte_len && pmbox->ctx_buf)
8310 lpfc_memcpy_to_slim(phba->MBslimaddr +
8311 MAILBOX_HBA_EXT_OFFSET,
8312 pmbox->ctx_buf, pmbox->in_ext_byte_len);
8314 if (mbx->mbxCommand == MBX_CONFIG_PORT)
8315 /* copy command data into host mbox for cmpl */
8316 lpfc_sli_pcimem_bcopy(mbx, phba->mbox,
8319 /* First copy mbox command data to HBA SLIM, skip past first
8321 to_slim = phba->MBslimaddr + sizeof (uint32_t);
8322 lpfc_memcpy_to_slim(to_slim, &mbx->un.varWords[0],
8323 MAILBOX_CMD_SIZE - sizeof (uint32_t));
8325 /* Next copy over first word, with mbxOwner set */
8326 ldata = *((uint32_t *)mbx);
8327 to_slim = phba->MBslimaddr;
8328 writel(ldata, to_slim);
8329 readl(to_slim); /* flush */
8331 if (mbx->mbxCommand == MBX_CONFIG_PORT)
8332 /* switch over to host mailbox */
8333 psli->sli_flag |= LPFC_SLI_ACTIVE;
8340 /* Set up reference to mailbox command */
8341 psli->mbox_active = pmbox;
8342 /* Interrupt board to do it */
8343 writel(CA_MBATT, phba->CAregaddr);
8344 readl(phba->CAregaddr); /* flush */
8345 /* Don't wait for it to finish, just return */
8349 /* Set up null reference to mailbox command */
8350 psli->mbox_active = NULL;
8351 /* Interrupt board to do it */
8352 writel(CA_MBATT, phba->CAregaddr);
8353 readl(phba->CAregaddr); /* flush */
8355 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
8356 /* First read mbox status word */
8357 word0 = *((uint32_t *)phba->mbox);
8358 word0 = le32_to_cpu(word0);
8360 /* First read mbox status word */
8361 if (lpfc_readl(phba->MBslimaddr, &word0)) {
8362 spin_unlock_irqrestore(&phba->hbalock,
8364 goto out_not_finished;
8368 /* Read the HBA Host Attention Register */
8369 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
8370 spin_unlock_irqrestore(&phba->hbalock,
8372 goto out_not_finished;
8374 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
8377 /* Wait for command to complete */
8378 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
8379 (!(ha_copy & HA_MBATT) &&
8380 (phba->link_state > LPFC_WARM_START))) {
8381 if (time_after(jiffies, timeout)) {
8382 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8383 spin_unlock_irqrestore(&phba->hbalock,
8385 goto out_not_finished;
8388 /* Check if we took a mbox interrupt while we were
8390 if (((word0 & OWN_CHIP) != OWN_CHIP)
8391 && (evtctr != psli->slistat.mbox_event))
8395 spin_unlock_irqrestore(&phba->hbalock,
8398 spin_lock_irqsave(&phba->hbalock, drvr_flag);
8401 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
8402 /* First copy command data */
8403 word0 = *((uint32_t *)phba->mbox);
8404 word0 = le32_to_cpu(word0);
8405 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
8408 /* Check real SLIM for any errors */
8409 slimword0 = readl(phba->MBslimaddr);
8410 slimmb = (MAILBOX_t *) & slimword0;
8411 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
8412 && slimmb->mbxStatus) {
8419 /* First copy command data */
8420 word0 = readl(phba->MBslimaddr);
8422 /* Read the HBA Host Attention Register */
8423 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
8424 spin_unlock_irqrestore(&phba->hbalock,
8426 goto out_not_finished;
8430 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
8431 /* copy results back to user */
8432 lpfc_sli_pcimem_bcopy(phba->mbox, mbx,
8434 /* Copy the mailbox extension data */
8435 if (pmbox->out_ext_byte_len && pmbox->ctx_buf) {
8436 lpfc_sli_pcimem_bcopy(phba->mbox_ext,
8438 pmbox->out_ext_byte_len);
8441 /* First copy command data */
8442 lpfc_memcpy_from_slim(mbx, phba->MBslimaddr,
8444 /* Copy the mailbox extension data */
8445 if (pmbox->out_ext_byte_len && pmbox->ctx_buf) {
8446 lpfc_memcpy_from_slim(
8449 MAILBOX_HBA_EXT_OFFSET,
8450 pmbox->out_ext_byte_len);
8454 writel(HA_MBATT, phba->HAregaddr);
8455 readl(phba->HAregaddr); /* flush */
8457 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8458 status = mbx->mbxStatus;
8461 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8465 if (processing_queue) {
8466 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
8467 lpfc_mbox_cmpl_put(phba, pmbox);
8469 return MBX_NOT_FINISHED;
8473 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
8474 * @phba: Pointer to HBA context object.
8476 * The function blocks the posting of SLI4 asynchronous mailbox commands from
8477 * the driver internal pending mailbox queue. It will then try to wait out the
8478 * possible outstanding mailbox command before return.
8481 * 0 - the outstanding mailbox command completed; otherwise, the wait for
8482 * the outstanding mailbox command timed out.
8485 lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
8487 struct lpfc_sli *psli = &phba->sli;
8489 unsigned long timeout = 0;
8491 /* Mark the asynchronous mailbox command posting as blocked */
8492 spin_lock_irq(&phba->hbalock);
8493 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
8494 /* Determine how long we might wait for the active mailbox
8495 * command to be gracefully completed by firmware.
8497 if (phba->sli.mbox_active)
8498 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
8499 phba->sli.mbox_active) *
8501 spin_unlock_irq(&phba->hbalock);
8503 /* Make sure the mailbox is really active */
8505 lpfc_sli4_process_missed_mbox_completions(phba);
8507 /* Wait for the outstnading mailbox command to complete */
8508 while (phba->sli.mbox_active) {
8509 /* Check active mailbox complete status every 2ms */
8511 if (time_after(jiffies, timeout)) {
8512 /* Timeout, marked the outstanding cmd not complete */
8518 /* Can not cleanly block async mailbox command, fails it */
8520 spin_lock_irq(&phba->hbalock);
8521 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
8522 spin_unlock_irq(&phba->hbalock);
8528 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
8529 * @phba: Pointer to HBA context object.
8531 * The function unblocks and resume posting of SLI4 asynchronous mailbox
8532 * commands from the driver internal pending mailbox queue. It makes sure
8533 * that there is no outstanding mailbox command before resuming posting
8534 * asynchronous mailbox commands. If, for any reason, there is outstanding
8535 * mailbox command, it will try to wait it out before resuming asynchronous
8536 * mailbox command posting.
8539 lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
8541 struct lpfc_sli *psli = &phba->sli;
8543 spin_lock_irq(&phba->hbalock);
8544 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
8545 /* Asynchronous mailbox posting is not blocked, do nothing */
8546 spin_unlock_irq(&phba->hbalock);
8550 /* Outstanding synchronous mailbox command is guaranteed to be done,
8551 * successful or timeout, after timing-out the outstanding mailbox
8552 * command shall always be removed, so just unblock posting async
8553 * mailbox command and resume
8555 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
8556 spin_unlock_irq(&phba->hbalock);
8558 /* wake up worker thread to post asynchronous mailbox command */
8559 lpfc_worker_wake_up(phba);
8563 * lpfc_sli4_wait_bmbx_ready - Wait for bootstrap mailbox register ready
8564 * @phba: Pointer to HBA context object.
8565 * @mboxq: Pointer to mailbox object.
8567 * The function waits for the bootstrap mailbox register ready bit from
8568 * port for twice the regular mailbox command timeout value.
8570 * 0 - no timeout on waiting for bootstrap mailbox register ready.
8571 * MBXERR_ERROR - wait for bootstrap mailbox register timed out.
8574 lpfc_sli4_wait_bmbx_ready(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8577 unsigned long timeout;
8578 struct lpfc_register bmbx_reg;
8580 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mboxq)
8584 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
8585 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
8589 if (time_after(jiffies, timeout))
8590 return MBXERR_ERROR;
8591 } while (!db_ready);
8597 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
8598 * @phba: Pointer to HBA context object.
8599 * @mboxq: Pointer to mailbox object.
8601 * The function posts a mailbox to the port. The mailbox is expected
8602 * to be comletely filled in and ready for the port to operate on it.
8603 * This routine executes a synchronous completion operation on the
8604 * mailbox by polling for its completion.
8606 * The caller must not be holding any locks when calling this routine.
8609 * MBX_SUCCESS - mailbox posted successfully
8610 * Any of the MBX error values.
8613 lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8615 int rc = MBX_SUCCESS;
8616 unsigned long iflag;
8617 uint32_t mcqe_status;
8619 struct lpfc_sli *psli = &phba->sli;
8620 struct lpfc_mqe *mb = &mboxq->u.mqe;
8621 struct lpfc_bmbx_create *mbox_rgn;
8622 struct dma_address *dma_address;
8625 * Only one mailbox can be active to the bootstrap mailbox region
8626 * at a time and there is no queueing provided.
8628 spin_lock_irqsave(&phba->hbalock, iflag);
8629 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8630 spin_unlock_irqrestore(&phba->hbalock, iflag);
8631 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8632 "(%d):2532 Mailbox command x%x (x%x/x%x) "
8633 "cannot issue Data: x%x x%x\n",
8634 mboxq->vport ? mboxq->vport->vpi : 0,
8635 mboxq->u.mb.mbxCommand,
8636 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8637 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8638 psli->sli_flag, MBX_POLL);
8639 return MBXERR_ERROR;
8641 /* The server grabs the token and owns it until release */
8642 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
8643 phba->sli.mbox_active = mboxq;
8644 spin_unlock_irqrestore(&phba->hbalock, iflag);
8646 /* wait for bootstrap mbox register for readyness */
8647 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
8651 * Initialize the bootstrap memory region to avoid stale data areas
8652 * in the mailbox post. Then copy the caller's mailbox contents to
8653 * the bmbx mailbox region.
8655 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
8656 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
8657 lpfc_sli4_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
8658 sizeof(struct lpfc_mqe));
8660 /* Post the high mailbox dma address to the port and wait for ready. */
8661 dma_address = &phba->sli4_hba.bmbx.dma_address;
8662 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
8664 /* wait for bootstrap mbox register for hi-address write done */
8665 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
8669 /* Post the low mailbox dma address to the port. */
8670 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
8672 /* wait for bootstrap mbox register for low address write done */
8673 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
8678 * Read the CQ to ensure the mailbox has completed.
8679 * If so, update the mailbox status so that the upper layers
8680 * can complete the request normally.
8682 lpfc_sli4_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
8683 sizeof(struct lpfc_mqe));
8684 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
8685 lpfc_sli4_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
8686 sizeof(struct lpfc_mcqe));
8687 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
8689 * When the CQE status indicates a failure and the mailbox status
8690 * indicates success then copy the CQE status into the mailbox status
8691 * (and prefix it with x4000).
8693 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
8694 if (bf_get(lpfc_mqe_status, mb) == MBX_SUCCESS)
8695 bf_set(lpfc_mqe_status, mb,
8696 (LPFC_MBX_ERROR_RANGE | mcqe_status));
8699 lpfc_sli4_swap_str(phba, mboxq);
8701 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8702 "(%d):0356 Mailbox cmd x%x (x%x/x%x) Status x%x "
8703 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
8704 " x%x x%x CQ: x%x x%x x%x x%x\n",
8705 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
8706 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8707 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8708 bf_get(lpfc_mqe_status, mb),
8709 mb->un.mb_words[0], mb->un.mb_words[1],
8710 mb->un.mb_words[2], mb->un.mb_words[3],
8711 mb->un.mb_words[4], mb->un.mb_words[5],
8712 mb->un.mb_words[6], mb->un.mb_words[7],
8713 mb->un.mb_words[8], mb->un.mb_words[9],
8714 mb->un.mb_words[10], mb->un.mb_words[11],
8715 mb->un.mb_words[12], mboxq->mcqe.word0,
8716 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
8717 mboxq->mcqe.trailer);
8719 /* We are holding the token, no needed for lock when release */
8720 spin_lock_irqsave(&phba->hbalock, iflag);
8721 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8722 phba->sli.mbox_active = NULL;
8723 spin_unlock_irqrestore(&phba->hbalock, iflag);
8728 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
8729 * @phba: Pointer to HBA context object.
8730 * @pmbox: Pointer to mailbox object.
8731 * @flag: Flag indicating how the mailbox need to be processed.
8733 * This function is called by discovery code and HBA management code to submit
8734 * a mailbox command to firmware with SLI-4 interface spec.
8736 * Return codes the caller owns the mailbox command after the return of the
8740 lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
8743 struct lpfc_sli *psli = &phba->sli;
8744 unsigned long iflags;
8747 /* dump from issue mailbox command if setup */
8748 lpfc_idiag_mbxacc_dump_issue_mbox(phba, &mboxq->u.mb);
8750 rc = lpfc_mbox_dev_check(phba);
8752 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8753 "(%d):2544 Mailbox command x%x (x%x/x%x) "
8754 "cannot issue Data: x%x x%x\n",
8755 mboxq->vport ? mboxq->vport->vpi : 0,
8756 mboxq->u.mb.mbxCommand,
8757 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8758 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8759 psli->sli_flag, flag);
8760 goto out_not_finished;
8763 /* Detect polling mode and jump to a handler */
8764 if (!phba->sli4_hba.intr_enable) {
8765 if (flag == MBX_POLL)
8766 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
8769 if (rc != MBX_SUCCESS)
8770 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
8771 "(%d):2541 Mailbox command x%x "
8772 "(x%x/x%x) failure: "
8773 "mqe_sta: x%x mcqe_sta: x%x/x%x "
8775 mboxq->vport ? mboxq->vport->vpi : 0,
8776 mboxq->u.mb.mbxCommand,
8777 lpfc_sli_config_mbox_subsys_get(phba,
8779 lpfc_sli_config_mbox_opcode_get(phba,
8781 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
8782 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
8783 bf_get(lpfc_mcqe_ext_status,
8785 psli->sli_flag, flag);
8787 } else if (flag == MBX_POLL) {
8788 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
8789 "(%d):2542 Try to issue mailbox command "
8790 "x%x (x%x/x%x) synchronously ahead of async "
8791 "mailbox command queue: x%x x%x\n",
8792 mboxq->vport ? mboxq->vport->vpi : 0,
8793 mboxq->u.mb.mbxCommand,
8794 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8795 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8796 psli->sli_flag, flag);
8797 /* Try to block the asynchronous mailbox posting */
8798 rc = lpfc_sli4_async_mbox_block(phba);
8800 /* Successfully blocked, now issue sync mbox cmd */
8801 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
8802 if (rc != MBX_SUCCESS)
8803 lpfc_printf_log(phba, KERN_WARNING,
8805 "(%d):2597 Sync Mailbox command "
8806 "x%x (x%x/x%x) failure: "
8807 "mqe_sta: x%x mcqe_sta: x%x/x%x "
8809 mboxq->vport ? mboxq->vport->vpi : 0,
8810 mboxq->u.mb.mbxCommand,
8811 lpfc_sli_config_mbox_subsys_get(phba,
8813 lpfc_sli_config_mbox_opcode_get(phba,
8815 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
8816 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
8817 bf_get(lpfc_mcqe_ext_status,
8819 psli->sli_flag, flag);
8820 /* Unblock the async mailbox posting afterward */
8821 lpfc_sli4_async_mbox_unblock(phba);
8826 /* Now, interrupt mode asynchronous mailbox command */
8827 rc = lpfc_mbox_cmd_check(phba, mboxq);
8829 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8830 "(%d):2543 Mailbox command x%x (x%x/x%x) "
8831 "cannot issue Data: x%x x%x\n",
8832 mboxq->vport ? mboxq->vport->vpi : 0,
8833 mboxq->u.mb.mbxCommand,
8834 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8835 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8836 psli->sli_flag, flag);
8837 goto out_not_finished;
8840 /* Put the mailbox command to the driver internal FIFO */
8841 psli->slistat.mbox_busy++;
8842 spin_lock_irqsave(&phba->hbalock, iflags);
8843 lpfc_mbox_put(phba, mboxq);
8844 spin_unlock_irqrestore(&phba->hbalock, iflags);
8845 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8846 "(%d):0354 Mbox cmd issue - Enqueue Data: "
8847 "x%x (x%x/x%x) x%x x%x x%x\n",
8848 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
8849 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
8850 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8851 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8852 phba->pport->port_state,
8853 psli->sli_flag, MBX_NOWAIT);
8854 /* Wake up worker thread to transport mailbox command from head */
8855 lpfc_worker_wake_up(phba);
8860 return MBX_NOT_FINISHED;
8864 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
8865 * @phba: Pointer to HBA context object.
8867 * This function is called by worker thread to send a mailbox command to
8868 * SLI4 HBA firmware.
8872 lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
8874 struct lpfc_sli *psli = &phba->sli;
8875 LPFC_MBOXQ_t *mboxq;
8876 int rc = MBX_SUCCESS;
8877 unsigned long iflags;
8878 struct lpfc_mqe *mqe;
8881 /* Check interrupt mode before post async mailbox command */
8882 if (unlikely(!phba->sli4_hba.intr_enable))
8883 return MBX_NOT_FINISHED;
8885 /* Check for mailbox command service token */
8886 spin_lock_irqsave(&phba->hbalock, iflags);
8887 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
8888 spin_unlock_irqrestore(&phba->hbalock, iflags);
8889 return MBX_NOT_FINISHED;
8891 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8892 spin_unlock_irqrestore(&phba->hbalock, iflags);
8893 return MBX_NOT_FINISHED;
8895 if (unlikely(phba->sli.mbox_active)) {
8896 spin_unlock_irqrestore(&phba->hbalock, iflags);
8897 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8898 "0384 There is pending active mailbox cmd\n");
8899 return MBX_NOT_FINISHED;
8901 /* Take the mailbox command service token */
8902 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
8904 /* Get the next mailbox command from head of queue */
8905 mboxq = lpfc_mbox_get(phba);
8907 /* If no more mailbox command waiting for post, we're done */
8909 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8910 spin_unlock_irqrestore(&phba->hbalock, iflags);
8913 phba->sli.mbox_active = mboxq;
8914 spin_unlock_irqrestore(&phba->hbalock, iflags);
8916 /* Check device readiness for posting mailbox command */
8917 rc = lpfc_mbox_dev_check(phba);
8919 /* Driver clean routine will clean up pending mailbox */
8920 goto out_not_finished;
8922 /* Prepare the mbox command to be posted */
8923 mqe = &mboxq->u.mqe;
8924 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
8926 /* Start timer for the mbox_tmo and log some mailbox post messages */
8927 mod_timer(&psli->mbox_tmo, (jiffies +
8928 msecs_to_jiffies(1000 * lpfc_mbox_tmo_val(phba, mboxq))));
8930 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8931 "(%d):0355 Mailbox cmd x%x (x%x/x%x) issue Data: "
8933 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
8934 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8935 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8936 phba->pport->port_state, psli->sli_flag);
8938 if (mbx_cmnd != MBX_HEARTBEAT) {
8940 lpfc_debugfs_disc_trc(mboxq->vport,
8941 LPFC_DISC_TRC_MBOX_VPORT,
8942 "MBOX Send vport: cmd:x%x mb:x%x x%x",
8943 mbx_cmnd, mqe->un.mb_words[0],
8944 mqe->un.mb_words[1]);
8946 lpfc_debugfs_disc_trc(phba->pport,
8948 "MBOX Send: cmd:x%x mb:x%x x%x",
8949 mbx_cmnd, mqe->un.mb_words[0],
8950 mqe->un.mb_words[1]);
8953 psli->slistat.mbox_cmd++;
8955 /* Post the mailbox command to the port */
8956 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
8957 if (rc != MBX_SUCCESS) {
8958 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8959 "(%d):2533 Mailbox command x%x (x%x/x%x) "
8960 "cannot issue Data: x%x x%x\n",
8961 mboxq->vport ? mboxq->vport->vpi : 0,
8962 mboxq->u.mb.mbxCommand,
8963 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8964 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8965 psli->sli_flag, MBX_NOWAIT);
8966 goto out_not_finished;
8972 spin_lock_irqsave(&phba->hbalock, iflags);
8973 if (phba->sli.mbox_active) {
8974 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
8975 __lpfc_mbox_cmpl_put(phba, mboxq);
8976 /* Release the token */
8977 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8978 phba->sli.mbox_active = NULL;
8980 spin_unlock_irqrestore(&phba->hbalock, iflags);
8982 return MBX_NOT_FINISHED;
8986 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
8987 * @phba: Pointer to HBA context object.
8988 * @pmbox: Pointer to mailbox object.
8989 * @flag: Flag indicating how the mailbox need to be processed.
8991 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
8992 * the API jump table function pointer from the lpfc_hba struct.
8994 * Return codes the caller owns the mailbox command after the return of the
8998 lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
9000 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
9004 * lpfc_mbox_api_table_setup - Set up mbox api function jump table
9005 * @phba: The hba struct for which this call is being executed.
9006 * @dev_grp: The HBA PCI-Device group number.
9008 * This routine sets up the mbox interface API function jump table in @phba
9010 * Returns: 0 - success, -ENODEV - failure.
9013 lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
9017 case LPFC_PCI_DEV_LP:
9018 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
9019 phba->lpfc_sli_handle_slow_ring_event =
9020 lpfc_sli_handle_slow_ring_event_s3;
9021 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
9022 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
9023 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
9025 case LPFC_PCI_DEV_OC:
9026 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
9027 phba->lpfc_sli_handle_slow_ring_event =
9028 lpfc_sli_handle_slow_ring_event_s4;
9029 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
9030 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
9031 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
9034 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9035 "1420 Invalid HBA PCI-device group: 0x%x\n",
9044 * __lpfc_sli_ringtx_put - Add an iocb to the txq
9045 * @phba: Pointer to HBA context object.
9046 * @pring: Pointer to driver SLI ring object.
9047 * @piocb: Pointer to address of newly added command iocb.
9049 * This function is called with hbalock held for SLI3 ports or
9050 * the ring lock held for SLI4 ports to add a command
9051 * iocb to the txq when SLI layer cannot submit the command iocb
9055 __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9056 struct lpfc_iocbq *piocb)
9058 if (phba->sli_rev == LPFC_SLI_REV4)
9059 lockdep_assert_held(&pring->ring_lock);
9061 lockdep_assert_held(&phba->hbalock);
9062 /* Insert the caller's iocb in the txq tail for later processing. */
9063 list_add_tail(&piocb->list, &pring->txq);
9067 * lpfc_sli_next_iocb - Get the next iocb in the txq
9068 * @phba: Pointer to HBA context object.
9069 * @pring: Pointer to driver SLI ring object.
9070 * @piocb: Pointer to address of newly added command iocb.
9072 * This function is called with hbalock held before a new
9073 * iocb is submitted to the firmware. This function checks
9074 * txq to flush the iocbs in txq to Firmware before
9075 * submitting new iocbs to the Firmware.
9076 * If there are iocbs in the txq which need to be submitted
9077 * to firmware, lpfc_sli_next_iocb returns the first element
9078 * of the txq after dequeuing it from txq.
9079 * If there is no iocb in the txq then the function will return
9080 * *piocb and *piocb is set to NULL. Caller needs to check
9081 * *piocb to find if there are more commands in the txq.
9083 static struct lpfc_iocbq *
9084 lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9085 struct lpfc_iocbq **piocb)
9087 struct lpfc_iocbq * nextiocb;
9089 lockdep_assert_held(&phba->hbalock);
9091 nextiocb = lpfc_sli_ringtx_get(phba, pring);
9101 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
9102 * @phba: Pointer to HBA context object.
9103 * @ring_number: SLI ring number to issue iocb on.
9104 * @piocb: Pointer to command iocb.
9105 * @flag: Flag indicating if this command can be put into txq.
9107 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
9108 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
9109 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
9110 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
9111 * this function allows only iocbs for posting buffers. This function finds
9112 * next available slot in the command ring and posts the command to the
9113 * available slot and writes the port attention register to request HBA start
9114 * processing new iocb. If there is no slot available in the ring and
9115 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
9116 * the function returns IOCB_BUSY.
9118 * This function is called with hbalock held. The function will return success
9119 * after it successfully submit the iocb to firmware or after adding to the
9123 __lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
9124 struct lpfc_iocbq *piocb, uint32_t flag)
9126 struct lpfc_iocbq *nextiocb;
9128 struct lpfc_sli_ring *pring = &phba->sli.sli3_ring[ring_number];
9130 lockdep_assert_held(&phba->hbalock);
9132 if (piocb->iocb_cmpl && (!piocb->vport) &&
9133 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
9134 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
9135 lpfc_printf_log(phba, KERN_ERR,
9136 LOG_SLI | LOG_VPORT,
9137 "1807 IOCB x%x failed. No vport\n",
9138 piocb->iocb.ulpCommand);
9144 /* If the PCI channel is in offline state, do not post iocbs. */
9145 if (unlikely(pci_channel_offline(phba->pcidev)))
9148 /* If HBA has a deferred error attention, fail the iocb. */
9149 if (unlikely(phba->hba_flag & DEFER_ERATT))
9153 * We should never get an IOCB if we are in a < LINK_DOWN state
9155 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
9159 * Check to see if we are blocking IOCB processing because of a
9160 * outstanding event.
9162 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
9165 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
9167 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
9168 * can be issued if the link is not up.
9170 switch (piocb->iocb.ulpCommand) {
9171 case CMD_GEN_REQUEST64_CR:
9172 case CMD_GEN_REQUEST64_CX:
9173 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
9174 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
9175 FC_RCTL_DD_UNSOL_CMD) ||
9176 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
9177 MENLO_TRANSPORT_TYPE))
9181 case CMD_QUE_RING_BUF_CN:
9182 case CMD_QUE_RING_BUF64_CN:
9184 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
9185 * completion, iocb_cmpl MUST be 0.
9187 if (piocb->iocb_cmpl)
9188 piocb->iocb_cmpl = NULL;
9190 case CMD_CREATE_XRI_CR:
9191 case CMD_CLOSE_XRI_CN:
9192 case CMD_CLOSE_XRI_CX:
9199 * For FCP commands, we must be in a state where we can process link
9202 } else if (unlikely(pring->ringno == LPFC_FCP_RING &&
9203 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
9207 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
9208 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
9209 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
9212 lpfc_sli_update_ring(phba, pring);
9214 lpfc_sli_update_full_ring(phba, pring);
9217 return IOCB_SUCCESS;
9222 pring->stats.iocb_cmd_delay++;
9226 if (!(flag & SLI_IOCB_RET_IOCB)) {
9227 __lpfc_sli_ringtx_put(phba, pring, piocb);
9228 return IOCB_SUCCESS;
9235 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
9236 * @phba: Pointer to HBA context object.
9237 * @piocb: Pointer to command iocb.
9238 * @sglq: Pointer to the scatter gather queue object.
9240 * This routine converts the bpl or bde that is in the IOCB
9241 * to a sgl list for the sli4 hardware. The physical address
9242 * of the bpl/bde is converted back to a virtual address.
9243 * If the IOCB contains a BPL then the list of BDE's is
9244 * converted to sli4_sge's. If the IOCB contains a single
9245 * BDE then it is converted to a single sli_sge.
9246 * The IOCB is still in cpu endianess so the contents of
9247 * the bpl can be used without byte swapping.
9249 * Returns valid XRI = Success, NO_XRI = Failure.
9252 lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
9253 struct lpfc_sglq *sglq)
9255 uint16_t xritag = NO_XRI;
9256 struct ulp_bde64 *bpl = NULL;
9257 struct ulp_bde64 bde;
9258 struct sli4_sge *sgl = NULL;
9259 struct lpfc_dmabuf *dmabuf;
9263 uint32_t offset = 0; /* accumulated offset in the sg request list */
9264 int inbound = 0; /* number of sg reply entries inbound from firmware */
9266 if (!piocbq || !sglq)
9269 sgl = (struct sli4_sge *)sglq->sgl;
9270 icmd = &piocbq->iocb;
9271 if (icmd->ulpCommand == CMD_XMIT_BLS_RSP64_CX)
9272 return sglq->sli4_xritag;
9273 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
9274 numBdes = icmd->un.genreq64.bdl.bdeSize /
9275 sizeof(struct ulp_bde64);
9276 /* The addrHigh and addrLow fields within the IOCB
9277 * have not been byteswapped yet so there is no
9278 * need to swap them back.
9280 if (piocbq->context3)
9281 dmabuf = (struct lpfc_dmabuf *)piocbq->context3;
9285 bpl = (struct ulp_bde64 *)dmabuf->virt;
9289 for (i = 0; i < numBdes; i++) {
9290 /* Should already be byte swapped. */
9291 sgl->addr_hi = bpl->addrHigh;
9292 sgl->addr_lo = bpl->addrLow;
9294 sgl->word2 = le32_to_cpu(sgl->word2);
9295 if ((i+1) == numBdes)
9296 bf_set(lpfc_sli4_sge_last, sgl, 1);
9298 bf_set(lpfc_sli4_sge_last, sgl, 0);
9299 /* swap the size field back to the cpu so we
9300 * can assign it to the sgl.
9302 bde.tus.w = le32_to_cpu(bpl->tus.w);
9303 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
9304 /* The offsets in the sgl need to be accumulated
9305 * separately for the request and reply lists.
9306 * The request is always first, the reply follows.
9308 if (piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) {
9309 /* add up the reply sg entries */
9310 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
9312 /* first inbound? reset the offset */
9315 bf_set(lpfc_sli4_sge_offset, sgl, offset);
9316 bf_set(lpfc_sli4_sge_type, sgl,
9317 LPFC_SGE_TYPE_DATA);
9318 offset += bde.tus.f.bdeSize;
9320 sgl->word2 = cpu_to_le32(sgl->word2);
9324 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
9325 /* The addrHigh and addrLow fields of the BDE have not
9326 * been byteswapped yet so they need to be swapped
9327 * before putting them in the sgl.
9330 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
9332 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
9333 sgl->word2 = le32_to_cpu(sgl->word2);
9334 bf_set(lpfc_sli4_sge_last, sgl, 1);
9335 sgl->word2 = cpu_to_le32(sgl->word2);
9337 cpu_to_le32(icmd->un.genreq64.bdl.bdeSize);
9339 return sglq->sli4_xritag;
9343 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
9344 * @phba: Pointer to HBA context object.
9345 * @piocb: Pointer to command iocb.
9346 * @wqe: Pointer to the work queue entry.
9348 * This routine converts the iocb command to its Work Queue Entry
9349 * equivalent. The wqe pointer should not have any fields set when
9350 * this routine is called because it will memcpy over them.
9351 * This routine does not set the CQ_ID or the WQEC bits in the
9354 * Returns: 0 = Success, IOCB_ERROR = Failure.
9357 lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
9358 union lpfc_wqe128 *wqe)
9360 uint32_t xmit_len = 0, total_len = 0;
9364 uint8_t command_type = ELS_COMMAND_NON_FIP;
9367 uint16_t abrt_iotag;
9368 struct lpfc_iocbq *abrtiocbq;
9369 struct ulp_bde64 *bpl = NULL;
9370 uint32_t els_id = LPFC_ELS_ID_DEFAULT;
9372 struct ulp_bde64 bde;
9373 struct lpfc_nodelist *ndlp;
9377 fip = phba->hba_flag & HBA_FIP_SUPPORT;
9378 /* The fcp commands will set command type */
9379 if (iocbq->iocb_flag & LPFC_IO_FCP)
9380 command_type = FCP_COMMAND;
9381 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
9382 command_type = ELS_COMMAND_FIP;
9384 command_type = ELS_COMMAND_NON_FIP;
9386 if (phba->fcp_embed_io)
9387 memset(wqe, 0, sizeof(union lpfc_wqe128));
9388 /* Some of the fields are in the right position already */
9389 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
9390 /* The ct field has moved so reset */
9391 wqe->generic.wqe_com.word7 = 0;
9392 wqe->generic.wqe_com.word10 = 0;
9394 abort_tag = (uint32_t) iocbq->iotag;
9395 xritag = iocbq->sli4_xritag;
9396 /* words0-2 bpl convert bde */
9397 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
9398 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
9399 sizeof(struct ulp_bde64);
9400 bpl = (struct ulp_bde64 *)
9401 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
9405 /* Should already be byte swapped. */
9406 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
9407 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
9408 /* swap the size field back to the cpu so we
9409 * can assign it to the sgl.
9411 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
9412 xmit_len = wqe->generic.bde.tus.f.bdeSize;
9414 for (i = 0; i < numBdes; i++) {
9415 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
9416 total_len += bde.tus.f.bdeSize;
9419 xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
9421 iocbq->iocb.ulpIoTag = iocbq->iotag;
9422 cmnd = iocbq->iocb.ulpCommand;
9424 switch (iocbq->iocb.ulpCommand) {
9425 case CMD_ELS_REQUEST64_CR:
9426 if (iocbq->iocb_flag & LPFC_IO_LIBDFC)
9427 ndlp = iocbq->context_un.ndlp;
9429 ndlp = (struct lpfc_nodelist *)iocbq->context1;
9430 if (!iocbq->iocb.ulpLe) {
9431 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9432 "2007 Only Limited Edition cmd Format"
9433 " supported 0x%x\n",
9434 iocbq->iocb.ulpCommand);
9438 wqe->els_req.payload_len = xmit_len;
9439 /* Els_reguest64 has a TMO */
9440 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
9441 iocbq->iocb.ulpTimeout);
9442 /* Need a VF for word 4 set the vf bit*/
9443 bf_set(els_req64_vf, &wqe->els_req, 0);
9444 /* And a VFID for word 12 */
9445 bf_set(els_req64_vfid, &wqe->els_req, 0);
9446 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
9447 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
9448 iocbq->iocb.ulpContext);
9449 bf_set(wqe_ct, &wqe->els_req.wqe_com, ct);
9450 bf_set(wqe_pu, &wqe->els_req.wqe_com, 0);
9451 /* CCP CCPE PV PRI in word10 were set in the memcpy */
9452 if (command_type == ELS_COMMAND_FIP)
9453 els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
9454 >> LPFC_FIP_ELS_ID_SHIFT);
9455 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
9456 iocbq->context2)->virt);
9457 if_type = bf_get(lpfc_sli_intf_if_type,
9458 &phba->sli4_hba.sli_intf);
9459 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
9460 if (pcmd && (*pcmd == ELS_CMD_FLOGI ||
9461 *pcmd == ELS_CMD_SCR ||
9462 *pcmd == ELS_CMD_RDF ||
9463 *pcmd == ELS_CMD_RSCN_XMT ||
9464 *pcmd == ELS_CMD_FDISC ||
9465 *pcmd == ELS_CMD_LOGO ||
9466 *pcmd == ELS_CMD_PLOGI)) {
9467 bf_set(els_req64_sp, &wqe->els_req, 1);
9468 bf_set(els_req64_sid, &wqe->els_req,
9469 iocbq->vport->fc_myDID);
9470 if ((*pcmd == ELS_CMD_FLOGI) &&
9471 !(phba->fc_topology ==
9472 LPFC_TOPOLOGY_LOOP))
9473 bf_set(els_req64_sid, &wqe->els_req, 0);
9474 bf_set(wqe_ct, &wqe->els_req.wqe_com, 1);
9475 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
9476 phba->vpi_ids[iocbq->vport->vpi]);
9477 } else if (pcmd && iocbq->context1) {
9478 bf_set(wqe_ct, &wqe->els_req.wqe_com, 0);
9479 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
9480 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
9483 bf_set(wqe_temp_rpi, &wqe->els_req.wqe_com,
9484 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
9485 bf_set(wqe_els_id, &wqe->els_req.wqe_com, els_id);
9486 bf_set(wqe_dbde, &wqe->els_req.wqe_com, 1);
9487 bf_set(wqe_iod, &wqe->els_req.wqe_com, LPFC_WQE_IOD_READ);
9488 bf_set(wqe_qosd, &wqe->els_req.wqe_com, 1);
9489 bf_set(wqe_lenloc, &wqe->els_req.wqe_com, LPFC_WQE_LENLOC_NONE);
9490 bf_set(wqe_ebde_cnt, &wqe->els_req.wqe_com, 0);
9491 wqe->els_req.max_response_payload_len = total_len - xmit_len;
9493 case CMD_XMIT_SEQUENCE64_CX:
9494 bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com,
9495 iocbq->iocb.un.ulpWord[3]);
9496 bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com,
9497 iocbq->iocb.unsli3.rcvsli3.ox_id);
9498 /* The entire sequence is transmitted for this IOCB */
9499 xmit_len = total_len;
9500 cmnd = CMD_XMIT_SEQUENCE64_CR;
9501 if (phba->link_flag & LS_LOOPBACK_MODE)
9502 bf_set(wqe_xo, &wqe->xmit_sequence.wge_ctl, 1);
9504 case CMD_XMIT_SEQUENCE64_CR:
9505 /* word3 iocb=io_tag32 wqe=reserved */
9506 wqe->xmit_sequence.rsvd3 = 0;
9507 /* word4 relative_offset memcpy */
9508 /* word5 r_ctl/df_ctl memcpy */
9509 bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0);
9510 bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1);
9511 bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com,
9512 LPFC_WQE_IOD_WRITE);
9513 bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com,
9514 LPFC_WQE_LENLOC_WORD12);
9515 bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0);
9516 wqe->xmit_sequence.xmit_len = xmit_len;
9517 command_type = OTHER_COMMAND;
9519 case CMD_XMIT_BCAST64_CN:
9520 /* word3 iocb=iotag32 wqe=seq_payload_len */
9521 wqe->xmit_bcast64.seq_payload_len = xmit_len;
9522 /* word4 iocb=rsvd wqe=rsvd */
9523 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
9524 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
9525 bf_set(wqe_ct, &wqe->xmit_bcast64.wqe_com,
9526 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
9527 bf_set(wqe_dbde, &wqe->xmit_bcast64.wqe_com, 1);
9528 bf_set(wqe_iod, &wqe->xmit_bcast64.wqe_com, LPFC_WQE_IOD_WRITE);
9529 bf_set(wqe_lenloc, &wqe->xmit_bcast64.wqe_com,
9530 LPFC_WQE_LENLOC_WORD3);
9531 bf_set(wqe_ebde_cnt, &wqe->xmit_bcast64.wqe_com, 0);
9533 case CMD_FCP_IWRITE64_CR:
9534 command_type = FCP_COMMAND_DATA_OUT;
9535 /* word3 iocb=iotag wqe=payload_offset_len */
9536 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
9537 bf_set(payload_offset_len, &wqe->fcp_iwrite,
9538 xmit_len + sizeof(struct fcp_rsp));
9539 bf_set(cmd_buff_len, &wqe->fcp_iwrite,
9541 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
9542 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
9543 bf_set(wqe_erp, &wqe->fcp_iwrite.wqe_com,
9544 iocbq->iocb.ulpFCP2Rcvy);
9545 bf_set(wqe_lnk, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpXS);
9546 /* Always open the exchange */
9547 bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE);
9548 bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com,
9549 LPFC_WQE_LENLOC_WORD4);
9550 bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpPU);
9551 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 1);
9552 if (iocbq->iocb_flag & LPFC_IO_OAS) {
9553 bf_set(wqe_oas, &wqe->fcp_iwrite.wqe_com, 1);
9554 bf_set(wqe_ccpe, &wqe->fcp_iwrite.wqe_com, 1);
9555 if (iocbq->priority) {
9556 bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
9557 (iocbq->priority << 1));
9559 bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
9560 (phba->cfg_XLanePriority << 1));
9563 /* Note, word 10 is already initialized to 0 */
9565 /* Don't set PBDE for Perf hints, just lpfc_enable_pbde */
9566 if (phba->cfg_enable_pbde)
9567 bf_set(wqe_pbde, &wqe->fcp_iwrite.wqe_com, 1);
9569 bf_set(wqe_pbde, &wqe->fcp_iwrite.wqe_com, 0);
9571 if (phba->fcp_embed_io) {
9572 struct lpfc_io_buf *lpfc_cmd;
9573 struct sli4_sge *sgl;
9574 struct fcp_cmnd *fcp_cmnd;
9577 /* 128 byte wqe support here */
9579 lpfc_cmd = iocbq->context1;
9580 sgl = (struct sli4_sge *)lpfc_cmd->dma_sgl;
9581 fcp_cmnd = lpfc_cmd->fcp_cmnd;
9583 /* Word 0-2 - FCP_CMND */
9584 wqe->generic.bde.tus.f.bdeFlags =
9585 BUFF_TYPE_BDE_IMMED;
9586 wqe->generic.bde.tus.f.bdeSize = sgl->sge_len;
9587 wqe->generic.bde.addrHigh = 0;
9588 wqe->generic.bde.addrLow = 88; /* Word 22 */
9590 bf_set(wqe_wqes, &wqe->fcp_iwrite.wqe_com, 1);
9591 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 0);
9593 /* Word 22-29 FCP CMND Payload */
9594 ptr = &wqe->words[22];
9595 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
9598 case CMD_FCP_IREAD64_CR:
9599 /* word3 iocb=iotag wqe=payload_offset_len */
9600 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
9601 bf_set(payload_offset_len, &wqe->fcp_iread,
9602 xmit_len + sizeof(struct fcp_rsp));
9603 bf_set(cmd_buff_len, &wqe->fcp_iread,
9605 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
9606 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
9607 bf_set(wqe_erp, &wqe->fcp_iread.wqe_com,
9608 iocbq->iocb.ulpFCP2Rcvy);
9609 bf_set(wqe_lnk, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpXS);
9610 /* Always open the exchange */
9611 bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ);
9612 bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com,
9613 LPFC_WQE_LENLOC_WORD4);
9614 bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpPU);
9615 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 1);
9616 if (iocbq->iocb_flag & LPFC_IO_OAS) {
9617 bf_set(wqe_oas, &wqe->fcp_iread.wqe_com, 1);
9618 bf_set(wqe_ccpe, &wqe->fcp_iread.wqe_com, 1);
9619 if (iocbq->priority) {
9620 bf_set(wqe_ccp, &wqe->fcp_iread.wqe_com,
9621 (iocbq->priority << 1));
9623 bf_set(wqe_ccp, &wqe->fcp_iread.wqe_com,
9624 (phba->cfg_XLanePriority << 1));
9627 /* Note, word 10 is already initialized to 0 */
9629 /* Don't set PBDE for Perf hints, just lpfc_enable_pbde */
9630 if (phba->cfg_enable_pbde)
9631 bf_set(wqe_pbde, &wqe->fcp_iread.wqe_com, 1);
9633 bf_set(wqe_pbde, &wqe->fcp_iread.wqe_com, 0);
9635 if (phba->fcp_embed_io) {
9636 struct lpfc_io_buf *lpfc_cmd;
9637 struct sli4_sge *sgl;
9638 struct fcp_cmnd *fcp_cmnd;
9641 /* 128 byte wqe support here */
9643 lpfc_cmd = iocbq->context1;
9644 sgl = (struct sli4_sge *)lpfc_cmd->dma_sgl;
9645 fcp_cmnd = lpfc_cmd->fcp_cmnd;
9647 /* Word 0-2 - FCP_CMND */
9648 wqe->generic.bde.tus.f.bdeFlags =
9649 BUFF_TYPE_BDE_IMMED;
9650 wqe->generic.bde.tus.f.bdeSize = sgl->sge_len;
9651 wqe->generic.bde.addrHigh = 0;
9652 wqe->generic.bde.addrLow = 88; /* Word 22 */
9654 bf_set(wqe_wqes, &wqe->fcp_iread.wqe_com, 1);
9655 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 0);
9657 /* Word 22-29 FCP CMND Payload */
9658 ptr = &wqe->words[22];
9659 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
9662 case CMD_FCP_ICMND64_CR:
9663 /* word3 iocb=iotag wqe=payload_offset_len */
9664 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
9665 bf_set(payload_offset_len, &wqe->fcp_icmd,
9666 xmit_len + sizeof(struct fcp_rsp));
9667 bf_set(cmd_buff_len, &wqe->fcp_icmd,
9669 /* word3 iocb=IO_TAG wqe=reserved */
9670 bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0);
9671 /* Always open the exchange */
9672 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 1);
9673 bf_set(wqe_iod, &wqe->fcp_icmd.wqe_com, LPFC_WQE_IOD_WRITE);
9674 bf_set(wqe_qosd, &wqe->fcp_icmd.wqe_com, 1);
9675 bf_set(wqe_lenloc, &wqe->fcp_icmd.wqe_com,
9676 LPFC_WQE_LENLOC_NONE);
9677 bf_set(wqe_erp, &wqe->fcp_icmd.wqe_com,
9678 iocbq->iocb.ulpFCP2Rcvy);
9679 if (iocbq->iocb_flag & LPFC_IO_OAS) {
9680 bf_set(wqe_oas, &wqe->fcp_icmd.wqe_com, 1);
9681 bf_set(wqe_ccpe, &wqe->fcp_icmd.wqe_com, 1);
9682 if (iocbq->priority) {
9683 bf_set(wqe_ccp, &wqe->fcp_icmd.wqe_com,
9684 (iocbq->priority << 1));
9686 bf_set(wqe_ccp, &wqe->fcp_icmd.wqe_com,
9687 (phba->cfg_XLanePriority << 1));
9690 /* Note, word 10 is already initialized to 0 */
9692 if (phba->fcp_embed_io) {
9693 struct lpfc_io_buf *lpfc_cmd;
9694 struct sli4_sge *sgl;
9695 struct fcp_cmnd *fcp_cmnd;
9698 /* 128 byte wqe support here */
9700 lpfc_cmd = iocbq->context1;
9701 sgl = (struct sli4_sge *)lpfc_cmd->dma_sgl;
9702 fcp_cmnd = lpfc_cmd->fcp_cmnd;
9704 /* Word 0-2 - FCP_CMND */
9705 wqe->generic.bde.tus.f.bdeFlags =
9706 BUFF_TYPE_BDE_IMMED;
9707 wqe->generic.bde.tus.f.bdeSize = sgl->sge_len;
9708 wqe->generic.bde.addrHigh = 0;
9709 wqe->generic.bde.addrLow = 88; /* Word 22 */
9711 bf_set(wqe_wqes, &wqe->fcp_icmd.wqe_com, 1);
9712 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 0);
9714 /* Word 22-29 FCP CMND Payload */
9715 ptr = &wqe->words[22];
9716 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
9719 case CMD_GEN_REQUEST64_CR:
9720 /* For this command calculate the xmit length of the
9724 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
9725 sizeof(struct ulp_bde64);
9726 for (i = 0; i < numBdes; i++) {
9727 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
9728 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
9730 xmit_len += bde.tus.f.bdeSize;
9732 /* word3 iocb=IO_TAG wqe=request_payload_len */
9733 wqe->gen_req.request_payload_len = xmit_len;
9734 /* word4 iocb=parameter wqe=relative_offset memcpy */
9735 /* word5 [rctl, type, df_ctl, la] copied in memcpy */
9736 /* word6 context tag copied in memcpy */
9737 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
9738 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
9739 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9740 "2015 Invalid CT %x command 0x%x\n",
9741 ct, iocbq->iocb.ulpCommand);
9744 bf_set(wqe_ct, &wqe->gen_req.wqe_com, 0);
9745 bf_set(wqe_tmo, &wqe->gen_req.wqe_com, iocbq->iocb.ulpTimeout);
9746 bf_set(wqe_pu, &wqe->gen_req.wqe_com, iocbq->iocb.ulpPU);
9747 bf_set(wqe_dbde, &wqe->gen_req.wqe_com, 1);
9748 bf_set(wqe_iod, &wqe->gen_req.wqe_com, LPFC_WQE_IOD_READ);
9749 bf_set(wqe_qosd, &wqe->gen_req.wqe_com, 1);
9750 bf_set(wqe_lenloc, &wqe->gen_req.wqe_com, LPFC_WQE_LENLOC_NONE);
9751 bf_set(wqe_ebde_cnt, &wqe->gen_req.wqe_com, 0);
9752 wqe->gen_req.max_response_payload_len = total_len - xmit_len;
9753 command_type = OTHER_COMMAND;
9755 case CMD_XMIT_ELS_RSP64_CX:
9756 ndlp = (struct lpfc_nodelist *)iocbq->context1;
9757 /* words0-2 BDE memcpy */
9758 /* word3 iocb=iotag32 wqe=response_payload_len */
9759 wqe->xmit_els_rsp.response_payload_len = xmit_len;
9761 wqe->xmit_els_rsp.word4 = 0;
9762 /* word5 iocb=rsvd wge=did */
9763 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
9764 iocbq->iocb.un.xseq64.xmit_els_remoteID);
9766 if_type = bf_get(lpfc_sli_intf_if_type,
9767 &phba->sli4_hba.sli_intf);
9768 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
9769 if (iocbq->vport->fc_flag & FC_PT2PT) {
9770 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
9771 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
9772 iocbq->vport->fc_myDID);
9773 if (iocbq->vport->fc_myDID == Fabric_DID) {
9775 &wqe->xmit_els_rsp.wqe_dest, 0);
9779 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com,
9780 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
9781 bf_set(wqe_pu, &wqe->xmit_els_rsp.wqe_com, iocbq->iocb.ulpPU);
9782 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
9783 iocbq->iocb.unsli3.rcvsli3.ox_id);
9784 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
9785 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
9786 phba->vpi_ids[iocbq->vport->vpi]);
9787 bf_set(wqe_dbde, &wqe->xmit_els_rsp.wqe_com, 1);
9788 bf_set(wqe_iod, &wqe->xmit_els_rsp.wqe_com, LPFC_WQE_IOD_WRITE);
9789 bf_set(wqe_qosd, &wqe->xmit_els_rsp.wqe_com, 1);
9790 bf_set(wqe_lenloc, &wqe->xmit_els_rsp.wqe_com,
9791 LPFC_WQE_LENLOC_WORD3);
9792 bf_set(wqe_ebde_cnt, &wqe->xmit_els_rsp.wqe_com, 0);
9793 bf_set(wqe_rsp_temp_rpi, &wqe->xmit_els_rsp,
9794 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
9795 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
9796 iocbq->context2)->virt);
9797 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
9798 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
9799 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
9800 iocbq->vport->fc_myDID);
9801 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com, 1);
9802 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
9803 phba->vpi_ids[phba->pport->vpi]);
9805 command_type = OTHER_COMMAND;
9807 case CMD_CLOSE_XRI_CN:
9808 case CMD_ABORT_XRI_CN:
9809 case CMD_ABORT_XRI_CX:
9810 /* words 0-2 memcpy should be 0 rserved */
9811 /* port will send abts */
9812 abrt_iotag = iocbq->iocb.un.acxri.abortContextTag;
9813 if (abrt_iotag != 0 && abrt_iotag <= phba->sli.last_iotag) {
9814 abrtiocbq = phba->sli.iocbq_lookup[abrt_iotag];
9815 fip = abrtiocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK;
9819 if ((iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN) || fip)
9821 * The link is down, or the command was ELS_FIP
9822 * so the fw does not need to send abts
9825 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
9827 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
9828 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
9829 /* word5 iocb=CONTEXT_TAG|IO_TAG wqe=reserved */
9830 wqe->abort_cmd.rsrvd5 = 0;
9831 bf_set(wqe_ct, &wqe->abort_cmd.wqe_com,
9832 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
9833 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
9835 * The abort handler will send us CMD_ABORT_XRI_CN or
9836 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
9838 bf_set(wqe_cmnd, &wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
9839 bf_set(wqe_qosd, &wqe->abort_cmd.wqe_com, 1);
9840 bf_set(wqe_lenloc, &wqe->abort_cmd.wqe_com,
9841 LPFC_WQE_LENLOC_NONE);
9842 cmnd = CMD_ABORT_XRI_CX;
9843 command_type = OTHER_COMMAND;
9846 case CMD_XMIT_BLS_RSP64_CX:
9847 ndlp = (struct lpfc_nodelist *)iocbq->context1;
9848 /* As BLS ABTS RSP WQE is very different from other WQEs,
9849 * we re-construct this WQE here based on information in
9850 * iocbq from scratch.
9852 memset(wqe, 0, sizeof(*wqe));
9853 /* OX_ID is invariable to who sent ABTS to CT exchange */
9854 bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
9855 bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_rsp));
9856 if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_rsp) ==
9857 LPFC_ABTS_UNSOL_INT) {
9858 /* ABTS sent by initiator to CT exchange, the
9859 * RX_ID field will be filled with the newly
9860 * allocated responder XRI.
9862 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
9863 iocbq->sli4_xritag);
9865 /* ABTS sent by responder to CT exchange, the
9866 * RX_ID field will be filled with the responder
9869 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
9870 bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_rsp));
9872 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
9873 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
9876 bf_set(wqe_els_did, &wqe->xmit_bls_rsp.wqe_dest,
9878 bf_set(xmit_bls_rsp64_temprpi, &wqe->xmit_bls_rsp,
9879 iocbq->iocb.ulpContext);
9880 bf_set(wqe_ct, &wqe->xmit_bls_rsp.wqe_com, 1);
9881 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
9882 phba->vpi_ids[phba->pport->vpi]);
9883 bf_set(wqe_qosd, &wqe->xmit_bls_rsp.wqe_com, 1);
9884 bf_set(wqe_lenloc, &wqe->xmit_bls_rsp.wqe_com,
9885 LPFC_WQE_LENLOC_NONE);
9886 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
9887 command_type = OTHER_COMMAND;
9888 if (iocbq->iocb.un.xseq64.w5.hcsw.Rctl == FC_RCTL_BA_RJT) {
9889 bf_set(xmit_bls_rsp64_rjt_vspec, &wqe->xmit_bls_rsp,
9890 bf_get(lpfc_vndr_code, &iocbq->iocb.un.bls_rsp));
9891 bf_set(xmit_bls_rsp64_rjt_expc, &wqe->xmit_bls_rsp,
9892 bf_get(lpfc_rsn_expln, &iocbq->iocb.un.bls_rsp));
9893 bf_set(xmit_bls_rsp64_rjt_rsnc, &wqe->xmit_bls_rsp,
9894 bf_get(lpfc_rsn_code, &iocbq->iocb.un.bls_rsp));
9898 case CMD_SEND_FRAME:
9899 bf_set(wqe_cmnd, &wqe->generic.wqe_com, CMD_SEND_FRAME);
9900 bf_set(wqe_sof, &wqe->generic.wqe_com, 0x2E); /* SOF byte */
9901 bf_set(wqe_eof, &wqe->generic.wqe_com, 0x41); /* EOF byte */
9902 bf_set(wqe_lenloc, &wqe->generic.wqe_com, 1);
9903 bf_set(wqe_xbl, &wqe->generic.wqe_com, 1);
9904 bf_set(wqe_dbde, &wqe->generic.wqe_com, 1);
9905 bf_set(wqe_xc, &wqe->generic.wqe_com, 1);
9906 bf_set(wqe_cmd_type, &wqe->generic.wqe_com, 0xA);
9907 bf_set(wqe_cqid, &wqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
9908 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
9909 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
9911 case CMD_XRI_ABORTED_CX:
9912 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
9913 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
9914 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
9915 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
9916 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
9918 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9919 "2014 Invalid command 0x%x\n",
9920 iocbq->iocb.ulpCommand);
9925 if (iocbq->iocb_flag & LPFC_IO_DIF_PASS)
9926 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_PASSTHRU);
9927 else if (iocbq->iocb_flag & LPFC_IO_DIF_STRIP)
9928 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_STRIP);
9929 else if (iocbq->iocb_flag & LPFC_IO_DIF_INSERT)
9930 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_INSERT);
9931 iocbq->iocb_flag &= ~(LPFC_IO_DIF_PASS | LPFC_IO_DIF_STRIP |
9932 LPFC_IO_DIF_INSERT);
9933 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
9934 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
9935 wqe->generic.wqe_com.abort_tag = abort_tag;
9936 bf_set(wqe_cmd_type, &wqe->generic.wqe_com, command_type);
9937 bf_set(wqe_cmnd, &wqe->generic.wqe_com, cmnd);
9938 bf_set(wqe_class, &wqe->generic.wqe_com, iocbq->iocb.ulpClass);
9939 bf_set(wqe_cqid, &wqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
9944 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
9945 * @phba: Pointer to HBA context object.
9946 * @ring_number: SLI ring number to issue iocb on.
9947 * @piocb: Pointer to command iocb.
9948 * @flag: Flag indicating if this command can be put into txq.
9950 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
9951 * an iocb command to an HBA with SLI-4 interface spec.
9953 * This function is called with ringlock held. The function will return success
9954 * after it successfully submit the iocb to firmware or after adding to the
9958 __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
9959 struct lpfc_iocbq *piocb, uint32_t flag)
9961 struct lpfc_sglq *sglq;
9962 union lpfc_wqe128 wqe;
9963 struct lpfc_queue *wq;
9964 struct lpfc_sli_ring *pring;
9967 if ((piocb->iocb_flag & LPFC_IO_FCP) ||
9968 (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
9969 wq = phba->sli4_hba.hdwq[piocb->hba_wqidx].io_wq;
9971 wq = phba->sli4_hba.els_wq;
9974 /* Get corresponding ring */
9978 * The WQE can be either 64 or 128 bytes,
9981 lockdep_assert_held(&pring->ring_lock);
9983 if (piocb->sli4_xritag == NO_XRI) {
9984 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
9985 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
9988 if (!list_empty(&pring->txq)) {
9989 if (!(flag & SLI_IOCB_RET_IOCB)) {
9990 __lpfc_sli_ringtx_put(phba,
9992 return IOCB_SUCCESS;
9997 sglq = __lpfc_sli_get_els_sglq(phba, piocb);
9999 if (!(flag & SLI_IOCB_RET_IOCB)) {
10000 __lpfc_sli_ringtx_put(phba,
10003 return IOCB_SUCCESS;
10009 } else if (piocb->iocb_flag & LPFC_IO_FCP)
10010 /* These IO's already have an XRI and a mapped sgl. */
10014 * This is a continuation of a commandi,(CX) so this
10015 * sglq is on the active list
10017 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_lxritag);
10023 piocb->sli4_lxritag = sglq->sli4_lxritag;
10024 piocb->sli4_xritag = sglq->sli4_xritag;
10025 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocb, sglq))
10029 if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe))
10032 if (lpfc_sli4_wq_put(wq, &wqe))
10034 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
10040 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
10042 * This routine wraps the actual lockless version for issusing IOCB function
10043 * pointer from the lpfc_hba struct.
10046 * IOCB_ERROR - Error
10047 * IOCB_SUCCESS - Success
10051 __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
10052 struct lpfc_iocbq *piocb, uint32_t flag)
10054 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
10058 * lpfc_sli_api_table_setup - Set up sli api function jump table
10059 * @phba: The hba struct for which this call is being executed.
10060 * @dev_grp: The HBA PCI-Device group number.
10062 * This routine sets up the SLI interface API function jump table in @phba
10064 * Returns: 0 - success, -ENODEV - failure.
10067 lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
10071 case LPFC_PCI_DEV_LP:
10072 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
10073 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
10075 case LPFC_PCI_DEV_OC:
10076 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
10077 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
10080 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10081 "1419 Invalid HBA PCI-device group: 0x%x\n",
10086 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
10091 * lpfc_sli4_calc_ring - Calculates which ring to use
10092 * @phba: Pointer to HBA context object.
10093 * @piocb: Pointer to command iocb.
10095 * For SLI4 only, FCP IO can deferred to one fo many WQs, based on
10096 * hba_wqidx, thus we need to calculate the corresponding ring.
10097 * Since ABORTS must go on the same WQ of the command they are
10098 * aborting, we use command's hba_wqidx.
10100 struct lpfc_sli_ring *
10101 lpfc_sli4_calc_ring(struct lpfc_hba *phba, struct lpfc_iocbq *piocb)
10103 struct lpfc_io_buf *lpfc_cmd;
10105 if (piocb->iocb_flag & (LPFC_IO_FCP | LPFC_USE_FCPWQIDX)) {
10106 if (unlikely(!phba->sli4_hba.hdwq))
10109 * for abort iocb hba_wqidx should already
10110 * be setup based on what work queue we used.
10112 if (!(piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
10113 lpfc_cmd = (struct lpfc_io_buf *)piocb->context1;
10114 piocb->hba_wqidx = lpfc_cmd->hdwq_no;
10116 return phba->sli4_hba.hdwq[piocb->hba_wqidx].io_wq->pring;
10118 if (unlikely(!phba->sli4_hba.els_wq))
10120 piocb->hba_wqidx = 0;
10121 return phba->sli4_hba.els_wq->pring;
10126 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
10127 * @phba: Pointer to HBA context object.
10128 * @pring: Pointer to driver SLI ring object.
10129 * @piocb: Pointer to command iocb.
10130 * @flag: Flag indicating if this command can be put into txq.
10132 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
10133 * function. This function gets the hbalock and calls
10134 * __lpfc_sli_issue_iocb function and will return the error returned
10135 * by __lpfc_sli_issue_iocb function. This wrapper is used by
10136 * functions which do not hold hbalock.
10139 lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
10140 struct lpfc_iocbq *piocb, uint32_t flag)
10142 struct lpfc_sli_ring *pring;
10143 struct lpfc_queue *eq;
10144 unsigned long iflags;
10147 if (phba->sli_rev == LPFC_SLI_REV4) {
10148 eq = phba->sli4_hba.hdwq[piocb->hba_wqidx].hba_eq;
10150 pring = lpfc_sli4_calc_ring(phba, piocb);
10151 if (unlikely(pring == NULL))
10154 spin_lock_irqsave(&pring->ring_lock, iflags);
10155 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
10156 spin_unlock_irqrestore(&pring->ring_lock, iflags);
10158 lpfc_sli4_poll_eq(eq, LPFC_POLL_FASTPATH);
10160 /* For now, SLI2/3 will still use hbalock */
10161 spin_lock_irqsave(&phba->hbalock, iflags);
10162 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
10163 spin_unlock_irqrestore(&phba->hbalock, iflags);
10169 * lpfc_extra_ring_setup - Extra ring setup function
10170 * @phba: Pointer to HBA context object.
10172 * This function is called while driver attaches with the
10173 * HBA to setup the extra ring. The extra ring is used
10174 * only when driver needs to support target mode functionality
10175 * or IP over FC functionalities.
10177 * This function is called with no lock held. SLI3 only.
10180 lpfc_extra_ring_setup( struct lpfc_hba *phba)
10182 struct lpfc_sli *psli;
10183 struct lpfc_sli_ring *pring;
10187 /* Adjust cmd/rsp ring iocb entries more evenly */
10189 /* Take some away from the FCP ring */
10190 pring = &psli->sli3_ring[LPFC_FCP_RING];
10191 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
10192 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
10193 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
10194 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
10196 /* and give them to the extra ring */
10197 pring = &psli->sli3_ring[LPFC_EXTRA_RING];
10199 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
10200 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
10201 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
10202 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
10204 /* Setup default profile for this ring */
10205 pring->iotag_max = 4096;
10206 pring->num_mask = 1;
10207 pring->prt[0].profile = 0; /* Mask 0 */
10208 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
10209 pring->prt[0].type = phba->cfg_multi_ring_type;
10210 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
10214 /* lpfc_sli_abts_err_handler - handle a failed ABTS request from an SLI3 port.
10215 * @phba: Pointer to HBA context object.
10216 * @iocbq: Pointer to iocb object.
10218 * The async_event handler calls this routine when it receives
10219 * an ASYNC_STATUS_CN event from the port. The port generates
10220 * this event when an Abort Sequence request to an rport fails
10221 * twice in succession. The abort could be originated by the
10222 * driver or by the port. The ABTS could have been for an ELS
10223 * or FCP IO. The port only generates this event when an ABTS
10224 * fails to complete after one retry.
10227 lpfc_sli_abts_err_handler(struct lpfc_hba *phba,
10228 struct lpfc_iocbq *iocbq)
10230 struct lpfc_nodelist *ndlp = NULL;
10231 uint16_t rpi = 0, vpi = 0;
10232 struct lpfc_vport *vport = NULL;
10234 /* The rpi in the ulpContext is vport-sensitive. */
10235 vpi = iocbq->iocb.un.asyncstat.sub_ctxt_tag;
10236 rpi = iocbq->iocb.ulpContext;
10238 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
10239 "3092 Port generated ABTS async event "
10240 "on vpi %d rpi %d status 0x%x\n",
10241 vpi, rpi, iocbq->iocb.ulpStatus);
10243 vport = lpfc_find_vport_by_vpid(phba, vpi);
10246 ndlp = lpfc_findnode_rpi(vport, rpi);
10247 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
10250 if (iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT)
10251 lpfc_sli_abts_recover_port(vport, ndlp);
10255 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10256 "3095 Event Context not found, no "
10257 "action on vpi %d rpi %d status 0x%x, reason 0x%x\n",
10258 iocbq->iocb.ulpContext, iocbq->iocb.ulpStatus,
10262 /* lpfc_sli4_abts_err_handler - handle a failed ABTS request from an SLI4 port.
10263 * @phba: pointer to HBA context object.
10264 * @ndlp: nodelist pointer for the impacted rport.
10265 * @axri: pointer to the wcqe containing the failed exchange.
10267 * The driver calls this routine when it receives an ABORT_XRI_FCP CQE from the
10268 * port. The port generates this event when an abort exchange request to an
10269 * rport fails twice in succession with no reply. The abort could be originated
10270 * by the driver or by the port. The ABTS could have been for an ELS or FCP IO.
10273 lpfc_sli4_abts_err_handler(struct lpfc_hba *phba,
10274 struct lpfc_nodelist *ndlp,
10275 struct sli4_wcqe_xri_aborted *axri)
10277 struct lpfc_vport *vport;
10278 uint32_t ext_status = 0;
10280 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
10281 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10282 "3115 Node Context not found, driver "
10283 "ignoring abts err event\n");
10287 vport = ndlp->vport;
10288 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
10289 "3116 Port generated FCP XRI ABORT event on "
10290 "vpi %d rpi %d xri x%x status 0x%x parameter x%x\n",
10291 ndlp->vport->vpi, phba->sli4_hba.rpi_ids[ndlp->nlp_rpi],
10292 bf_get(lpfc_wcqe_xa_xri, axri),
10293 bf_get(lpfc_wcqe_xa_status, axri),
10297 * Catch the ABTS protocol failure case. Older OCe FW releases returned
10298 * LOCAL_REJECT and 0 for a failed ABTS exchange and later OCe and
10299 * LPe FW releases returned LOCAL_REJECT and SEQUENCE_TIMEOUT.
10301 ext_status = axri->parameter & IOERR_PARAM_MASK;
10302 if ((bf_get(lpfc_wcqe_xa_status, axri) == IOSTAT_LOCAL_REJECT) &&
10303 ((ext_status == IOERR_SEQUENCE_TIMEOUT) || (ext_status == 0)))
10304 lpfc_sli_abts_recover_port(vport, ndlp);
10308 * lpfc_sli_async_event_handler - ASYNC iocb handler function
10309 * @phba: Pointer to HBA context object.
10310 * @pring: Pointer to driver SLI ring object.
10311 * @iocbq: Pointer to iocb object.
10313 * This function is called by the slow ring event handler
10314 * function when there is an ASYNC event iocb in the ring.
10315 * This function is called with no lock held.
10316 * Currently this function handles only temperature related
10317 * ASYNC events. The function decodes the temperature sensor
10318 * event message and posts events for the management applications.
10321 lpfc_sli_async_event_handler(struct lpfc_hba * phba,
10322 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
10326 struct temp_event temp_event_data;
10327 struct Scsi_Host *shost;
10330 icmd = &iocbq->iocb;
10331 evt_code = icmd->un.asyncstat.evt_code;
10333 switch (evt_code) {
10334 case ASYNC_TEMP_WARN:
10335 case ASYNC_TEMP_SAFE:
10336 temp_event_data.data = (uint32_t) icmd->ulpContext;
10337 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
10338 if (evt_code == ASYNC_TEMP_WARN) {
10339 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
10340 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
10341 "0347 Adapter is very hot, please take "
10342 "corrective action. temperature : %d Celsius\n",
10343 (uint32_t) icmd->ulpContext);
10345 temp_event_data.event_code = LPFC_NORMAL_TEMP;
10346 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
10347 "0340 Adapter temperature is OK now. "
10348 "temperature : %d Celsius\n",
10349 (uint32_t) icmd->ulpContext);
10352 /* Send temperature change event to applications */
10353 shost = lpfc_shost_from_vport(phba->pport);
10354 fc_host_post_vendor_event(shost, fc_get_event_number(),
10355 sizeof(temp_event_data), (char *) &temp_event_data,
10356 LPFC_NL_VENDOR_ID);
10358 case ASYNC_STATUS_CN:
10359 lpfc_sli_abts_err_handler(phba, iocbq);
10362 iocb_w = (uint32_t *) icmd;
10363 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10364 "0346 Ring %d handler: unexpected ASYNC_STATUS"
10366 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
10367 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
10368 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
10369 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
10370 pring->ringno, icmd->un.asyncstat.evt_code,
10371 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
10372 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
10373 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
10374 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
10382 * lpfc_sli4_setup - SLI ring setup function
10383 * @phba: Pointer to HBA context object.
10385 * lpfc_sli_setup sets up rings of the SLI interface with
10386 * number of iocbs per ring and iotags. This function is
10387 * called while driver attach to the HBA and before the
10388 * interrupts are enabled. So there is no need for locking.
10390 * This function always returns 0.
10393 lpfc_sli4_setup(struct lpfc_hba *phba)
10395 struct lpfc_sli_ring *pring;
10397 pring = phba->sli4_hba.els_wq->pring;
10398 pring->num_mask = LPFC_MAX_RING_MASK;
10399 pring->prt[0].profile = 0; /* Mask 0 */
10400 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
10401 pring->prt[0].type = FC_TYPE_ELS;
10402 pring->prt[0].lpfc_sli_rcv_unsol_event =
10403 lpfc_els_unsol_event;
10404 pring->prt[1].profile = 0; /* Mask 1 */
10405 pring->prt[1].rctl = FC_RCTL_ELS_REP;
10406 pring->prt[1].type = FC_TYPE_ELS;
10407 pring->prt[1].lpfc_sli_rcv_unsol_event =
10408 lpfc_els_unsol_event;
10409 pring->prt[2].profile = 0; /* Mask 2 */
10410 /* NameServer Inquiry */
10411 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
10413 pring->prt[2].type = FC_TYPE_CT;
10414 pring->prt[2].lpfc_sli_rcv_unsol_event =
10415 lpfc_ct_unsol_event;
10416 pring->prt[3].profile = 0; /* Mask 3 */
10417 /* NameServer response */
10418 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
10420 pring->prt[3].type = FC_TYPE_CT;
10421 pring->prt[3].lpfc_sli_rcv_unsol_event =
10422 lpfc_ct_unsol_event;
10427 * lpfc_sli_setup - SLI ring setup function
10428 * @phba: Pointer to HBA context object.
10430 * lpfc_sli_setup sets up rings of the SLI interface with
10431 * number of iocbs per ring and iotags. This function is
10432 * called while driver attach to the HBA and before the
10433 * interrupts are enabled. So there is no need for locking.
10435 * This function always returns 0. SLI3 only.
10438 lpfc_sli_setup(struct lpfc_hba *phba)
10440 int i, totiocbsize = 0;
10441 struct lpfc_sli *psli = &phba->sli;
10442 struct lpfc_sli_ring *pring;
10444 psli->num_rings = MAX_SLI3_CONFIGURED_RINGS;
10445 psli->sli_flag = 0;
10447 psli->iocbq_lookup = NULL;
10448 psli->iocbq_lookup_len = 0;
10449 psli->last_iotag = 0;
10451 for (i = 0; i < psli->num_rings; i++) {
10452 pring = &psli->sli3_ring[i];
10454 case LPFC_FCP_RING: /* ring 0 - FCP */
10455 /* numCiocb and numRiocb are used in config_port */
10456 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
10457 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
10458 pring->sli.sli3.numCiocb +=
10459 SLI2_IOCB_CMD_R1XTRA_ENTRIES;
10460 pring->sli.sli3.numRiocb +=
10461 SLI2_IOCB_RSP_R1XTRA_ENTRIES;
10462 pring->sli.sli3.numCiocb +=
10463 SLI2_IOCB_CMD_R3XTRA_ENTRIES;
10464 pring->sli.sli3.numRiocb +=
10465 SLI2_IOCB_RSP_R3XTRA_ENTRIES;
10466 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
10467 SLI3_IOCB_CMD_SIZE :
10468 SLI2_IOCB_CMD_SIZE;
10469 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
10470 SLI3_IOCB_RSP_SIZE :
10471 SLI2_IOCB_RSP_SIZE;
10472 pring->iotag_ctr = 0;
10474 (phba->cfg_hba_queue_depth * 2);
10475 pring->fast_iotag = pring->iotag_max;
10476 pring->num_mask = 0;
10478 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
10479 /* numCiocb and numRiocb are used in config_port */
10480 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
10481 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
10482 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
10483 SLI3_IOCB_CMD_SIZE :
10484 SLI2_IOCB_CMD_SIZE;
10485 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
10486 SLI3_IOCB_RSP_SIZE :
10487 SLI2_IOCB_RSP_SIZE;
10488 pring->iotag_max = phba->cfg_hba_queue_depth;
10489 pring->num_mask = 0;
10491 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
10492 /* numCiocb and numRiocb are used in config_port */
10493 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
10494 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
10495 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
10496 SLI3_IOCB_CMD_SIZE :
10497 SLI2_IOCB_CMD_SIZE;
10498 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
10499 SLI3_IOCB_RSP_SIZE :
10500 SLI2_IOCB_RSP_SIZE;
10501 pring->fast_iotag = 0;
10502 pring->iotag_ctr = 0;
10503 pring->iotag_max = 4096;
10504 pring->lpfc_sli_rcv_async_status =
10505 lpfc_sli_async_event_handler;
10506 pring->num_mask = LPFC_MAX_RING_MASK;
10507 pring->prt[0].profile = 0; /* Mask 0 */
10508 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
10509 pring->prt[0].type = FC_TYPE_ELS;
10510 pring->prt[0].lpfc_sli_rcv_unsol_event =
10511 lpfc_els_unsol_event;
10512 pring->prt[1].profile = 0; /* Mask 1 */
10513 pring->prt[1].rctl = FC_RCTL_ELS_REP;
10514 pring->prt[1].type = FC_TYPE_ELS;
10515 pring->prt[1].lpfc_sli_rcv_unsol_event =
10516 lpfc_els_unsol_event;
10517 pring->prt[2].profile = 0; /* Mask 2 */
10518 /* NameServer Inquiry */
10519 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
10521 pring->prt[2].type = FC_TYPE_CT;
10522 pring->prt[2].lpfc_sli_rcv_unsol_event =
10523 lpfc_ct_unsol_event;
10524 pring->prt[3].profile = 0; /* Mask 3 */
10525 /* NameServer response */
10526 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
10528 pring->prt[3].type = FC_TYPE_CT;
10529 pring->prt[3].lpfc_sli_rcv_unsol_event =
10530 lpfc_ct_unsol_event;
10533 totiocbsize += (pring->sli.sli3.numCiocb *
10534 pring->sli.sli3.sizeCiocb) +
10535 (pring->sli.sli3.numRiocb * pring->sli.sli3.sizeRiocb);
10537 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
10538 /* Too many cmd / rsp ring entries in SLI2 SLIM */
10539 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
10540 "SLI2 SLIM Data: x%x x%lx\n",
10541 phba->brd_no, totiocbsize,
10542 (unsigned long) MAX_SLIM_IOCB_SIZE);
10544 if (phba->cfg_multi_ring_support == 2)
10545 lpfc_extra_ring_setup(phba);
10551 * lpfc_sli4_queue_init - Queue initialization function
10552 * @phba: Pointer to HBA context object.
10554 * lpfc_sli4_queue_init sets up mailbox queues and iocb queues for each
10555 * ring. This function also initializes ring indices of each ring.
10556 * This function is called during the initialization of the SLI
10557 * interface of an HBA.
10558 * This function is called with no lock held and always returns
10562 lpfc_sli4_queue_init(struct lpfc_hba *phba)
10564 struct lpfc_sli *psli;
10565 struct lpfc_sli_ring *pring;
10569 spin_lock_irq(&phba->hbalock);
10570 INIT_LIST_HEAD(&psli->mboxq);
10571 INIT_LIST_HEAD(&psli->mboxq_cmpl);
10572 /* Initialize list headers for txq and txcmplq as double linked lists */
10573 for (i = 0; i < phba->cfg_hdw_queue; i++) {
10574 pring = phba->sli4_hba.hdwq[i].io_wq->pring;
10576 pring->ringno = LPFC_FCP_RING;
10577 pring->txcmplq_cnt = 0;
10578 INIT_LIST_HEAD(&pring->txq);
10579 INIT_LIST_HEAD(&pring->txcmplq);
10580 INIT_LIST_HEAD(&pring->iocb_continueq);
10581 spin_lock_init(&pring->ring_lock);
10583 pring = phba->sli4_hba.els_wq->pring;
10585 pring->ringno = LPFC_ELS_RING;
10586 pring->txcmplq_cnt = 0;
10587 INIT_LIST_HEAD(&pring->txq);
10588 INIT_LIST_HEAD(&pring->txcmplq);
10589 INIT_LIST_HEAD(&pring->iocb_continueq);
10590 spin_lock_init(&pring->ring_lock);
10592 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10593 pring = phba->sli4_hba.nvmels_wq->pring;
10595 pring->ringno = LPFC_ELS_RING;
10596 pring->txcmplq_cnt = 0;
10597 INIT_LIST_HEAD(&pring->txq);
10598 INIT_LIST_HEAD(&pring->txcmplq);
10599 INIT_LIST_HEAD(&pring->iocb_continueq);
10600 spin_lock_init(&pring->ring_lock);
10603 spin_unlock_irq(&phba->hbalock);
10607 * lpfc_sli_queue_init - Queue initialization function
10608 * @phba: Pointer to HBA context object.
10610 * lpfc_sli_queue_init sets up mailbox queues and iocb queues for each
10611 * ring. This function also initializes ring indices of each ring.
10612 * This function is called during the initialization of the SLI
10613 * interface of an HBA.
10614 * This function is called with no lock held and always returns
10618 lpfc_sli_queue_init(struct lpfc_hba *phba)
10620 struct lpfc_sli *psli;
10621 struct lpfc_sli_ring *pring;
10625 spin_lock_irq(&phba->hbalock);
10626 INIT_LIST_HEAD(&psli->mboxq);
10627 INIT_LIST_HEAD(&psli->mboxq_cmpl);
10628 /* Initialize list headers for txq and txcmplq as double linked lists */
10629 for (i = 0; i < psli->num_rings; i++) {
10630 pring = &psli->sli3_ring[i];
10632 pring->sli.sli3.next_cmdidx = 0;
10633 pring->sli.sli3.local_getidx = 0;
10634 pring->sli.sli3.cmdidx = 0;
10635 INIT_LIST_HEAD(&pring->iocb_continueq);
10636 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
10637 INIT_LIST_HEAD(&pring->postbufq);
10639 INIT_LIST_HEAD(&pring->txq);
10640 INIT_LIST_HEAD(&pring->txcmplq);
10641 spin_lock_init(&pring->ring_lock);
10643 spin_unlock_irq(&phba->hbalock);
10647 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
10648 * @phba: Pointer to HBA context object.
10650 * This routine flushes the mailbox command subsystem. It will unconditionally
10651 * flush all the mailbox commands in the three possible stages in the mailbox
10652 * command sub-system: pending mailbox command queue; the outstanding mailbox
10653 * command; and completed mailbox command queue. It is caller's responsibility
10654 * to make sure that the driver is in the proper state to flush the mailbox
10655 * command sub-system. Namely, the posting of mailbox commands into the
10656 * pending mailbox command queue from the various clients must be stopped;
10657 * either the HBA is in a state that it will never works on the outstanding
10658 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
10659 * mailbox command has been completed.
10662 lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
10664 LIST_HEAD(completions);
10665 struct lpfc_sli *psli = &phba->sli;
10667 unsigned long iflag;
10669 /* Disable softirqs, including timers from obtaining phba->hbalock */
10670 local_bh_disable();
10672 /* Flush all the mailbox commands in the mbox system */
10673 spin_lock_irqsave(&phba->hbalock, iflag);
10675 /* The pending mailbox command queue */
10676 list_splice_init(&phba->sli.mboxq, &completions);
10677 /* The outstanding active mailbox command */
10678 if (psli->mbox_active) {
10679 list_add_tail(&psli->mbox_active->list, &completions);
10680 psli->mbox_active = NULL;
10681 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
10683 /* The completed mailbox command queue */
10684 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
10685 spin_unlock_irqrestore(&phba->hbalock, iflag);
10687 /* Enable softirqs again, done with phba->hbalock */
10690 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
10691 while (!list_empty(&completions)) {
10692 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
10693 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
10694 if (pmb->mbox_cmpl)
10695 pmb->mbox_cmpl(phba, pmb);
10700 * lpfc_sli_host_down - Vport cleanup function
10701 * @vport: Pointer to virtual port object.
10703 * lpfc_sli_host_down is called to clean up the resources
10704 * associated with a vport before destroying virtual
10705 * port data structures.
10706 * This function does following operations:
10707 * - Free discovery resources associated with this virtual
10709 * - Free iocbs associated with this virtual port in
10711 * - Send abort for all iocb commands associated with this
10712 * vport in txcmplq.
10714 * This function is called with no lock held and always returns 1.
10717 lpfc_sli_host_down(struct lpfc_vport *vport)
10719 LIST_HEAD(completions);
10720 struct lpfc_hba *phba = vport->phba;
10721 struct lpfc_sli *psli = &phba->sli;
10722 struct lpfc_queue *qp = NULL;
10723 struct lpfc_sli_ring *pring;
10724 struct lpfc_iocbq *iocb, *next_iocb;
10726 unsigned long flags = 0;
10727 uint16_t prev_pring_flag;
10729 lpfc_cleanup_discovery_resources(vport);
10731 spin_lock_irqsave(&phba->hbalock, flags);
10734 * Error everything on the txq since these iocbs
10735 * have not been given to the FW yet.
10736 * Also issue ABTS for everything on the txcmplq
10738 if (phba->sli_rev != LPFC_SLI_REV4) {
10739 for (i = 0; i < psli->num_rings; i++) {
10740 pring = &psli->sli3_ring[i];
10741 prev_pring_flag = pring->flag;
10742 /* Only slow rings */
10743 if (pring->ringno == LPFC_ELS_RING) {
10744 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10745 /* Set the lpfc data pending flag */
10746 set_bit(LPFC_DATA_READY, &phba->data_flags);
10748 list_for_each_entry_safe(iocb, next_iocb,
10749 &pring->txq, list) {
10750 if (iocb->vport != vport)
10752 list_move_tail(&iocb->list, &completions);
10754 list_for_each_entry_safe(iocb, next_iocb,
10755 &pring->txcmplq, list) {
10756 if (iocb->vport != vport)
10758 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
10760 pring->flag = prev_pring_flag;
10763 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
10767 if (pring == phba->sli4_hba.els_wq->pring) {
10768 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10769 /* Set the lpfc data pending flag */
10770 set_bit(LPFC_DATA_READY, &phba->data_flags);
10772 prev_pring_flag = pring->flag;
10773 spin_lock(&pring->ring_lock);
10774 list_for_each_entry_safe(iocb, next_iocb,
10775 &pring->txq, list) {
10776 if (iocb->vport != vport)
10778 list_move_tail(&iocb->list, &completions);
10780 spin_unlock(&pring->ring_lock);
10781 list_for_each_entry_safe(iocb, next_iocb,
10782 &pring->txcmplq, list) {
10783 if (iocb->vport != vport)
10785 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
10787 pring->flag = prev_pring_flag;
10790 spin_unlock_irqrestore(&phba->hbalock, flags);
10792 /* Cancel all the IOCBs from the completions list */
10793 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
10799 * lpfc_sli_hba_down - Resource cleanup function for the HBA
10800 * @phba: Pointer to HBA context object.
10802 * This function cleans up all iocb, buffers, mailbox commands
10803 * while shutting down the HBA. This function is called with no
10804 * lock held and always returns 1.
10805 * This function does the following to cleanup driver resources:
10806 * - Free discovery resources for each virtual port
10807 * - Cleanup any pending fabric iocbs
10808 * - Iterate through the iocb txq and free each entry
10810 * - Free up any buffer posted to the HBA
10811 * - Free mailbox commands in the mailbox queue.
10814 lpfc_sli_hba_down(struct lpfc_hba *phba)
10816 LIST_HEAD(completions);
10817 struct lpfc_sli *psli = &phba->sli;
10818 struct lpfc_queue *qp = NULL;
10819 struct lpfc_sli_ring *pring;
10820 struct lpfc_dmabuf *buf_ptr;
10821 unsigned long flags = 0;
10824 /* Shutdown the mailbox command sub-system */
10825 lpfc_sli_mbox_sys_shutdown(phba, LPFC_MBX_WAIT);
10827 lpfc_hba_down_prep(phba);
10829 /* Disable softirqs, including timers from obtaining phba->hbalock */
10830 local_bh_disable();
10832 lpfc_fabric_abort_hba(phba);
10834 spin_lock_irqsave(&phba->hbalock, flags);
10837 * Error everything on the txq since these iocbs
10838 * have not been given to the FW yet.
10840 if (phba->sli_rev != LPFC_SLI_REV4) {
10841 for (i = 0; i < psli->num_rings; i++) {
10842 pring = &psli->sli3_ring[i];
10843 /* Only slow rings */
10844 if (pring->ringno == LPFC_ELS_RING) {
10845 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10846 /* Set the lpfc data pending flag */
10847 set_bit(LPFC_DATA_READY, &phba->data_flags);
10849 list_splice_init(&pring->txq, &completions);
10852 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
10856 spin_lock(&pring->ring_lock);
10857 list_splice_init(&pring->txq, &completions);
10858 spin_unlock(&pring->ring_lock);
10859 if (pring == phba->sli4_hba.els_wq->pring) {
10860 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10861 /* Set the lpfc data pending flag */
10862 set_bit(LPFC_DATA_READY, &phba->data_flags);
10866 spin_unlock_irqrestore(&phba->hbalock, flags);
10868 /* Cancel all the IOCBs from the completions list */
10869 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
10872 spin_lock_irqsave(&phba->hbalock, flags);
10873 list_splice_init(&phba->elsbuf, &completions);
10874 phba->elsbuf_cnt = 0;
10875 phba->elsbuf_prev_cnt = 0;
10876 spin_unlock_irqrestore(&phba->hbalock, flags);
10878 while (!list_empty(&completions)) {
10879 list_remove_head(&completions, buf_ptr,
10880 struct lpfc_dmabuf, list);
10881 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
10885 /* Enable softirqs again, done with phba->hbalock */
10888 /* Return any active mbox cmds */
10889 del_timer_sync(&psli->mbox_tmo);
10891 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
10892 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
10893 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
10899 * lpfc_sli_pcimem_bcopy - SLI memory copy function
10900 * @srcp: Source memory pointer.
10901 * @destp: Destination memory pointer.
10902 * @cnt: Number of words required to be copied.
10904 * This function is used for copying data between driver memory
10905 * and the SLI memory. This function also changes the endianness
10906 * of each word if native endianness is different from SLI
10907 * endianness. This function can be called with or without
10911 lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
10913 uint32_t *src = srcp;
10914 uint32_t *dest = destp;
10918 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
10920 ldata = le32_to_cpu(ldata);
10929 * lpfc_sli_bemem_bcopy - SLI memory copy function
10930 * @srcp: Source memory pointer.
10931 * @destp: Destination memory pointer.
10932 * @cnt: Number of words required to be copied.
10934 * This function is used for copying data between a data structure
10935 * with big endian representation to local endianness.
10936 * This function can be called with or without lock.
10939 lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
10941 uint32_t *src = srcp;
10942 uint32_t *dest = destp;
10946 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
10948 ldata = be32_to_cpu(ldata);
10956 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
10957 * @phba: Pointer to HBA context object.
10958 * @pring: Pointer to driver SLI ring object.
10959 * @mp: Pointer to driver buffer object.
10961 * This function is called with no lock held.
10962 * It always return zero after adding the buffer to the postbufq
10966 lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10967 struct lpfc_dmabuf *mp)
10969 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
10971 spin_lock_irq(&phba->hbalock);
10972 list_add_tail(&mp->list, &pring->postbufq);
10973 pring->postbufq_cnt++;
10974 spin_unlock_irq(&phba->hbalock);
10979 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
10980 * @phba: Pointer to HBA context object.
10982 * When HBQ is enabled, buffers are searched based on tags. This function
10983 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
10984 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
10985 * does not conflict with tags of buffer posted for unsolicited events.
10986 * The function returns the allocated tag. The function is called with
10990 lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
10992 spin_lock_irq(&phba->hbalock);
10993 phba->buffer_tag_count++;
10995 * Always set the QUE_BUFTAG_BIT to distiguish between
10996 * a tag assigned by HBQ.
10998 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
10999 spin_unlock_irq(&phba->hbalock);
11000 return phba->buffer_tag_count;
11004 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
11005 * @phba: Pointer to HBA context object.
11006 * @pring: Pointer to driver SLI ring object.
11007 * @tag: Buffer tag.
11009 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
11010 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
11011 * iocb is posted to the response ring with the tag of the buffer.
11012 * This function searches the pring->postbufq list using the tag
11013 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
11014 * iocb. If the buffer is found then lpfc_dmabuf object of the
11015 * buffer is returned to the caller else NULL is returned.
11016 * This function is called with no lock held.
11018 struct lpfc_dmabuf *
11019 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
11022 struct lpfc_dmabuf *mp, *next_mp;
11023 struct list_head *slp = &pring->postbufq;
11025 /* Search postbufq, from the beginning, looking for a match on tag */
11026 spin_lock_irq(&phba->hbalock);
11027 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
11028 if (mp->buffer_tag == tag) {
11029 list_del_init(&mp->list);
11030 pring->postbufq_cnt--;
11031 spin_unlock_irq(&phba->hbalock);
11036 spin_unlock_irq(&phba->hbalock);
11037 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11038 "0402 Cannot find virtual addr for buffer tag on "
11039 "ring %d Data x%lx x%px x%px x%x\n",
11040 pring->ringno, (unsigned long) tag,
11041 slp->next, slp->prev, pring->postbufq_cnt);
11047 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
11048 * @phba: Pointer to HBA context object.
11049 * @pring: Pointer to driver SLI ring object.
11050 * @phys: DMA address of the buffer.
11052 * This function searches the buffer list using the dma_address
11053 * of unsolicited event to find the driver's lpfc_dmabuf object
11054 * corresponding to the dma_address. The function returns the
11055 * lpfc_dmabuf object if a buffer is found else it returns NULL.
11056 * This function is called by the ct and els unsolicited event
11057 * handlers to get the buffer associated with the unsolicited
11060 * This function is called with no lock held.
11062 struct lpfc_dmabuf *
11063 lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
11066 struct lpfc_dmabuf *mp, *next_mp;
11067 struct list_head *slp = &pring->postbufq;
11069 /* Search postbufq, from the beginning, looking for a match on phys */
11070 spin_lock_irq(&phba->hbalock);
11071 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
11072 if (mp->phys == phys) {
11073 list_del_init(&mp->list);
11074 pring->postbufq_cnt--;
11075 spin_unlock_irq(&phba->hbalock);
11080 spin_unlock_irq(&phba->hbalock);
11081 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11082 "0410 Cannot find virtual addr for mapped buf on "
11083 "ring %d Data x%llx x%px x%px x%x\n",
11084 pring->ringno, (unsigned long long)phys,
11085 slp->next, slp->prev, pring->postbufq_cnt);
11090 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
11091 * @phba: Pointer to HBA context object.
11092 * @cmdiocb: Pointer to driver command iocb object.
11093 * @rspiocb: Pointer to driver response iocb object.
11095 * This function is the completion handler for the abort iocbs for
11096 * ELS commands. This function is called from the ELS ring event
11097 * handler with no lock held. This function frees memory resources
11098 * associated with the abort iocb.
11101 lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
11102 struct lpfc_iocbq *rspiocb)
11104 IOCB_t *irsp = &rspiocb->iocb;
11105 uint16_t abort_iotag, abort_context;
11106 struct lpfc_iocbq *abort_iocb = NULL;
11108 if (irsp->ulpStatus) {
11111 * Assume that the port already completed and returned, or
11112 * will return the iocb. Just Log the message.
11114 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
11115 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
11117 spin_lock_irq(&phba->hbalock);
11118 if (phba->sli_rev < LPFC_SLI_REV4) {
11119 if (irsp->ulpCommand == CMD_ABORT_XRI_CX &&
11120 irsp->ulpStatus == IOSTAT_LOCAL_REJECT &&
11121 irsp->un.ulpWord[4] == IOERR_ABORT_REQUESTED) {
11122 spin_unlock_irq(&phba->hbalock);
11125 if (abort_iotag != 0 &&
11126 abort_iotag <= phba->sli.last_iotag)
11128 phba->sli.iocbq_lookup[abort_iotag];
11130 /* For sli4 the abort_tag is the XRI,
11131 * so the abort routine puts the iotag of the iocb
11132 * being aborted in the context field of the abort
11135 abort_iocb = phba->sli.iocbq_lookup[abort_context];
11137 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI,
11138 "0327 Cannot abort els iocb x%px "
11139 "with tag %x context %x, abort status %x, "
11141 abort_iocb, abort_iotag, abort_context,
11142 irsp->ulpStatus, irsp->un.ulpWord[4]);
11144 spin_unlock_irq(&phba->hbalock);
11147 lpfc_sli_release_iocbq(phba, cmdiocb);
11152 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
11153 * @phba: Pointer to HBA context object.
11154 * @cmdiocb: Pointer to driver command iocb object.
11155 * @rspiocb: Pointer to driver response iocb object.
11157 * The function is called from SLI ring event handler with no
11158 * lock held. This function is the completion handler for ELS commands
11159 * which are aborted. The function frees memory resources used for
11160 * the aborted ELS commands.
11163 lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
11164 struct lpfc_iocbq *rspiocb)
11166 IOCB_t *irsp = &rspiocb->iocb;
11168 /* ELS cmd tag <ulpIoTag> completes */
11169 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
11170 "0139 Ignoring ELS cmd tag x%x completion Data: "
11172 irsp->ulpIoTag, irsp->ulpStatus,
11173 irsp->un.ulpWord[4], irsp->ulpTimeout);
11174 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
11175 lpfc_ct_free_iocb(phba, cmdiocb);
11177 lpfc_els_free_iocb(phba, cmdiocb);
11182 * lpfc_sli_abort_iotag_issue - Issue abort for a command iocb
11183 * @phba: Pointer to HBA context object.
11184 * @pring: Pointer to driver SLI ring object.
11185 * @cmdiocb: Pointer to driver command iocb object.
11187 * This function issues an abort iocb for the provided command iocb down to
11188 * the port. Other than the case the outstanding command iocb is an abort
11189 * request, this function issues abort out unconditionally. This function is
11190 * called with hbalock held. The function returns 0 when it fails due to
11191 * memory allocation failure or when the command iocb is an abort request.
11194 lpfc_sli_abort_iotag_issue(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
11195 struct lpfc_iocbq *cmdiocb)
11197 struct lpfc_vport *vport = cmdiocb->vport;
11198 struct lpfc_iocbq *abtsiocbp;
11199 IOCB_t *icmd = NULL;
11200 IOCB_t *iabt = NULL;
11202 unsigned long iflags;
11203 struct lpfc_nodelist *ndlp;
11205 lockdep_assert_held(&phba->hbalock);
11208 * There are certain command types we don't want to abort. And we
11209 * don't want to abort commands that are already in the process of
11212 icmd = &cmdiocb->iocb;
11213 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
11214 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
11215 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
11218 /* issue ABTS for this IOCB based on iotag */
11219 abtsiocbp = __lpfc_sli_get_iocbq(phba);
11220 if (abtsiocbp == NULL)
11223 /* This signals the response to set the correct status
11224 * before calling the completion handler
11226 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
11228 iabt = &abtsiocbp->iocb;
11229 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
11230 iabt->un.acxri.abortContextTag = icmd->ulpContext;
11231 if (phba->sli_rev == LPFC_SLI_REV4) {
11232 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
11233 iabt->un.acxri.abortContextTag = cmdiocb->iotag;
11235 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
11236 if (pring->ringno == LPFC_ELS_RING) {
11237 ndlp = (struct lpfc_nodelist *)(cmdiocb->context1);
11238 iabt->un.acxri.abortContextTag = ndlp->nlp_rpi;
11242 iabt->ulpClass = icmd->ulpClass;
11244 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
11245 abtsiocbp->hba_wqidx = cmdiocb->hba_wqidx;
11246 if (cmdiocb->iocb_flag & LPFC_IO_FCP)
11247 abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
11248 if (cmdiocb->iocb_flag & LPFC_IO_FOF)
11249 abtsiocbp->iocb_flag |= LPFC_IO_FOF;
11251 if (phba->link_state >= LPFC_LINK_UP)
11252 iabt->ulpCommand = CMD_ABORT_XRI_CN;
11254 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
11256 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
11257 abtsiocbp->vport = vport;
11259 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
11260 "0339 Abort xri x%x, original iotag x%x, "
11261 "abort cmd iotag x%x\n",
11262 iabt->un.acxri.abortIoTag,
11263 iabt->un.acxri.abortContextTag,
11266 if (phba->sli_rev == LPFC_SLI_REV4) {
11267 pring = lpfc_sli4_calc_ring(phba, abtsiocbp);
11268 if (unlikely(pring == NULL))
11270 /* Note: both hbalock and ring_lock need to be set here */
11271 spin_lock_irqsave(&pring->ring_lock, iflags);
11272 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
11274 spin_unlock_irqrestore(&pring->ring_lock, iflags);
11276 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
11281 __lpfc_sli_release_iocbq(phba, abtsiocbp);
11284 * Caller to this routine should check for IOCB_ERROR
11285 * and handle it properly. This routine no longer removes
11286 * iocb off txcmplq and call compl in case of IOCB_ERROR.
11292 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
11293 * @phba: Pointer to HBA context object.
11294 * @pring: Pointer to driver SLI ring object.
11295 * @cmdiocb: Pointer to driver command iocb object.
11297 * This function issues an abort iocb for the provided command iocb. In case
11298 * of unloading, the abort iocb will not be issued to commands on the ELS
11299 * ring. Instead, the callback function shall be changed to those commands
11300 * so that nothing happens when them finishes. This function is called with
11301 * hbalock held. The function returns 0 when the command iocb is an abort
11305 lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
11306 struct lpfc_iocbq *cmdiocb)
11308 struct lpfc_vport *vport = cmdiocb->vport;
11309 int retval = IOCB_ERROR;
11310 IOCB_t *icmd = NULL;
11312 lockdep_assert_held(&phba->hbalock);
11315 * There are certain command types we don't want to abort. And we
11316 * don't want to abort commands that are already in the process of
11319 icmd = &cmdiocb->iocb;
11320 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
11321 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
11322 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
11326 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
11327 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
11329 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
11330 goto abort_iotag_exit;
11334 * If we're unloading, don't abort iocb on the ELS ring, but change
11335 * the callback so that nothing happens when it finishes.
11337 if ((vport->load_flag & FC_UNLOADING) &&
11338 (pring->ringno == LPFC_ELS_RING)) {
11339 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
11340 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
11342 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
11343 goto abort_iotag_exit;
11346 /* Now, we try to issue the abort to the cmdiocb out */
11347 retval = lpfc_sli_abort_iotag_issue(phba, pring, cmdiocb);
11351 * Caller to this routine should check for IOCB_ERROR
11352 * and handle it properly. This routine no longer removes
11353 * iocb off txcmplq and call compl in case of IOCB_ERROR.
11359 * lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
11360 * @phba: pointer to lpfc HBA data structure.
11362 * This routine will abort all pending and outstanding iocbs to an HBA.
11365 lpfc_sli_hba_iocb_abort(struct lpfc_hba *phba)
11367 struct lpfc_sli *psli = &phba->sli;
11368 struct lpfc_sli_ring *pring;
11369 struct lpfc_queue *qp = NULL;
11372 if (phba->sli_rev != LPFC_SLI_REV4) {
11373 for (i = 0; i < psli->num_rings; i++) {
11374 pring = &psli->sli3_ring[i];
11375 lpfc_sli_abort_iocb_ring(phba, pring);
11379 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
11383 lpfc_sli_abort_iocb_ring(phba, pring);
11388 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
11389 * @iocbq: Pointer to driver iocb object.
11390 * @vport: Pointer to driver virtual port object.
11391 * @tgt_id: SCSI ID of the target.
11392 * @lun_id: LUN ID of the scsi device.
11393 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
11395 * This function acts as an iocb filter for functions which abort or count
11396 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
11397 * 0 if the filtering criteria is met for the given iocb and will return
11398 * 1 if the filtering criteria is not met.
11399 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
11400 * given iocb is for the SCSI device specified by vport, tgt_id and
11401 * lun_id parameter.
11402 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
11403 * given iocb is for the SCSI target specified by vport and tgt_id
11405 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
11406 * given iocb is for the SCSI host associated with the given vport.
11407 * This function is called with no locks held.
11410 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
11411 uint16_t tgt_id, uint64_t lun_id,
11412 lpfc_ctx_cmd ctx_cmd)
11414 struct lpfc_io_buf *lpfc_cmd;
11417 if (iocbq->vport != vport)
11420 if (!(iocbq->iocb_flag & LPFC_IO_FCP) ||
11421 !(iocbq->iocb_flag & LPFC_IO_ON_TXCMPLQ))
11424 lpfc_cmd = container_of(iocbq, struct lpfc_io_buf, cur_iocbq);
11426 if (lpfc_cmd->pCmd == NULL)
11431 if ((lpfc_cmd->rdata) && (lpfc_cmd->rdata->pnode) &&
11432 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
11433 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
11437 if ((lpfc_cmd->rdata) && (lpfc_cmd->rdata->pnode) &&
11438 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
11441 case LPFC_CTX_HOST:
11445 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
11446 __func__, ctx_cmd);
11454 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
11455 * @vport: Pointer to virtual port.
11456 * @tgt_id: SCSI ID of the target.
11457 * @lun_id: LUN ID of the scsi device.
11458 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
11460 * This function returns number of FCP commands pending for the vport.
11461 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
11462 * commands pending on the vport associated with SCSI device specified
11463 * by tgt_id and lun_id parameters.
11464 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
11465 * commands pending on the vport associated with SCSI target specified
11466 * by tgt_id parameter.
11467 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
11468 * commands pending on the vport.
11469 * This function returns the number of iocbs which satisfy the filter.
11470 * This function is called without any lock held.
11473 lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
11474 lpfc_ctx_cmd ctx_cmd)
11476 struct lpfc_hba *phba = vport->phba;
11477 struct lpfc_iocbq *iocbq;
11480 spin_lock_irq(&phba->hbalock);
11481 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
11482 iocbq = phba->sli.iocbq_lookup[i];
11484 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
11488 spin_unlock_irq(&phba->hbalock);
11494 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
11495 * @phba: Pointer to HBA context object
11496 * @cmdiocb: Pointer to command iocb object.
11497 * @rspiocb: Pointer to response iocb object.
11499 * This function is called when an aborted FCP iocb completes. This
11500 * function is called by the ring event handler with no lock held.
11501 * This function frees the iocb.
11504 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
11505 struct lpfc_iocbq *rspiocb)
11507 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11508 "3096 ABORT_XRI_CN completing on rpi x%x "
11509 "original iotag x%x, abort cmd iotag x%x "
11510 "status 0x%x, reason 0x%x\n",
11511 cmdiocb->iocb.un.acxri.abortContextTag,
11512 cmdiocb->iocb.un.acxri.abortIoTag,
11513 cmdiocb->iotag, rspiocb->iocb.ulpStatus,
11514 rspiocb->iocb.un.ulpWord[4]);
11515 lpfc_sli_release_iocbq(phba, cmdiocb);
11520 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
11521 * @vport: Pointer to virtual port.
11522 * @pring: Pointer to driver SLI ring object.
11523 * @tgt_id: SCSI ID of the target.
11524 * @lun_id: LUN ID of the scsi device.
11525 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
11527 * This function sends an abort command for every SCSI command
11528 * associated with the given virtual port pending on the ring
11529 * filtered by lpfc_sli_validate_fcp_iocb function.
11530 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
11531 * FCP iocbs associated with lun specified by tgt_id and lun_id
11533 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
11534 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
11535 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
11536 * FCP iocbs associated with virtual port.
11537 * This function returns number of iocbs it failed to abort.
11538 * This function is called with no locks held.
11541 lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
11542 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
11544 struct lpfc_hba *phba = vport->phba;
11545 struct lpfc_iocbq *iocbq;
11546 struct lpfc_iocbq *abtsiocb;
11547 struct lpfc_sli_ring *pring_s4;
11548 IOCB_t *cmd = NULL;
11549 int errcnt = 0, ret_val = 0;
11552 /* all I/Os are in process of being flushed */
11553 if (phba->hba_flag & HBA_IOQ_FLUSH)
11556 for (i = 1; i <= phba->sli.last_iotag; i++) {
11557 iocbq = phba->sli.iocbq_lookup[i];
11559 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
11564 * If the iocbq is already being aborted, don't take a second
11565 * action, but do count it.
11567 if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
11570 /* issue ABTS for this IOCB based on iotag */
11571 abtsiocb = lpfc_sli_get_iocbq(phba);
11572 if (abtsiocb == NULL) {
11577 /* indicate the IO is being aborted by the driver. */
11578 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
11580 cmd = &iocbq->iocb;
11581 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
11582 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
11583 if (phba->sli_rev == LPFC_SLI_REV4)
11584 abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
11586 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
11587 abtsiocb->iocb.ulpLe = 1;
11588 abtsiocb->iocb.ulpClass = cmd->ulpClass;
11589 abtsiocb->vport = vport;
11591 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
11592 abtsiocb->hba_wqidx = iocbq->hba_wqidx;
11593 if (iocbq->iocb_flag & LPFC_IO_FCP)
11594 abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
11595 if (iocbq->iocb_flag & LPFC_IO_FOF)
11596 abtsiocb->iocb_flag |= LPFC_IO_FOF;
11598 if (lpfc_is_link_up(phba))
11599 abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
11601 abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
11603 /* Setup callback routine and issue the command. */
11604 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
11605 if (phba->sli_rev == LPFC_SLI_REV4) {
11606 pring_s4 = lpfc_sli4_calc_ring(phba, iocbq);
11609 ret_val = lpfc_sli_issue_iocb(phba, pring_s4->ringno,
11612 ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
11614 if (ret_val == IOCB_ERROR) {
11615 lpfc_sli_release_iocbq(phba, abtsiocb);
11625 * lpfc_sli_abort_taskmgmt - issue abort for all commands on a host/target/LUN
11626 * @vport: Pointer to virtual port.
11627 * @pring: Pointer to driver SLI ring object.
11628 * @tgt_id: SCSI ID of the target.
11629 * @lun_id: LUN ID of the scsi device.
11630 * @taskmgmt_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
11632 * This function sends an abort command for every SCSI command
11633 * associated with the given virtual port pending on the ring
11634 * filtered by lpfc_sli_validate_fcp_iocb function.
11635 * When taskmgmt_cmd == LPFC_CTX_LUN, the function sends abort only to the
11636 * FCP iocbs associated with lun specified by tgt_id and lun_id
11638 * When taskmgmt_cmd == LPFC_CTX_TGT, the function sends abort only to the
11639 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
11640 * When taskmgmt_cmd == LPFC_CTX_HOST, the function sends abort to all
11641 * FCP iocbs associated with virtual port.
11642 * This function returns number of iocbs it aborted .
11643 * This function is called with no locks held right after a taskmgmt
11647 lpfc_sli_abort_taskmgmt(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
11648 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd cmd)
11650 struct lpfc_hba *phba = vport->phba;
11651 struct lpfc_io_buf *lpfc_cmd;
11652 struct lpfc_iocbq *abtsiocbq;
11653 struct lpfc_nodelist *ndlp;
11654 struct lpfc_iocbq *iocbq;
11656 int sum, i, ret_val;
11657 unsigned long iflags;
11658 struct lpfc_sli_ring *pring_s4 = NULL;
11660 spin_lock_irqsave(&phba->hbalock, iflags);
11662 /* all I/Os are in process of being flushed */
11663 if (phba->hba_flag & HBA_IOQ_FLUSH) {
11664 spin_unlock_irqrestore(&phba->hbalock, iflags);
11669 for (i = 1; i <= phba->sli.last_iotag; i++) {
11670 iocbq = phba->sli.iocbq_lookup[i];
11672 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
11676 /* Guard against IO completion being called at same time */
11677 lpfc_cmd = container_of(iocbq, struct lpfc_io_buf, cur_iocbq);
11678 spin_lock(&lpfc_cmd->buf_lock);
11680 if (!lpfc_cmd->pCmd) {
11681 spin_unlock(&lpfc_cmd->buf_lock);
11685 if (phba->sli_rev == LPFC_SLI_REV4) {
11687 phba->sli4_hba.hdwq[iocbq->hba_wqidx].io_wq->pring;
11689 spin_unlock(&lpfc_cmd->buf_lock);
11692 /* Note: both hbalock and ring_lock must be set here */
11693 spin_lock(&pring_s4->ring_lock);
11697 * If the iocbq is already being aborted, don't take a second
11698 * action, but do count it.
11700 if ((iocbq->iocb_flag & LPFC_DRIVER_ABORTED) ||
11701 !(iocbq->iocb_flag & LPFC_IO_ON_TXCMPLQ)) {
11702 if (phba->sli_rev == LPFC_SLI_REV4)
11703 spin_unlock(&pring_s4->ring_lock);
11704 spin_unlock(&lpfc_cmd->buf_lock);
11708 /* issue ABTS for this IOCB based on iotag */
11709 abtsiocbq = __lpfc_sli_get_iocbq(phba);
11711 if (phba->sli_rev == LPFC_SLI_REV4)
11712 spin_unlock(&pring_s4->ring_lock);
11713 spin_unlock(&lpfc_cmd->buf_lock);
11717 icmd = &iocbq->iocb;
11718 abtsiocbq->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
11719 abtsiocbq->iocb.un.acxri.abortContextTag = icmd->ulpContext;
11720 if (phba->sli_rev == LPFC_SLI_REV4)
11721 abtsiocbq->iocb.un.acxri.abortIoTag =
11722 iocbq->sli4_xritag;
11724 abtsiocbq->iocb.un.acxri.abortIoTag = icmd->ulpIoTag;
11725 abtsiocbq->iocb.ulpLe = 1;
11726 abtsiocbq->iocb.ulpClass = icmd->ulpClass;
11727 abtsiocbq->vport = vport;
11729 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
11730 abtsiocbq->hba_wqidx = iocbq->hba_wqidx;
11731 if (iocbq->iocb_flag & LPFC_IO_FCP)
11732 abtsiocbq->iocb_flag |= LPFC_USE_FCPWQIDX;
11733 if (iocbq->iocb_flag & LPFC_IO_FOF)
11734 abtsiocbq->iocb_flag |= LPFC_IO_FOF;
11736 ndlp = lpfc_cmd->rdata->pnode;
11738 if (lpfc_is_link_up(phba) &&
11739 (ndlp && ndlp->nlp_state == NLP_STE_MAPPED_NODE))
11740 abtsiocbq->iocb.ulpCommand = CMD_ABORT_XRI_CN;
11742 abtsiocbq->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
11744 /* Setup callback routine and issue the command. */
11745 abtsiocbq->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
11748 * Indicate the IO is being aborted by the driver and set
11749 * the caller's flag into the aborted IO.
11751 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
11753 if (phba->sli_rev == LPFC_SLI_REV4) {
11754 ret_val = __lpfc_sli_issue_iocb(phba, pring_s4->ringno,
11756 spin_unlock(&pring_s4->ring_lock);
11758 ret_val = __lpfc_sli_issue_iocb(phba, pring->ringno,
11762 spin_unlock(&lpfc_cmd->buf_lock);
11764 if (ret_val == IOCB_ERROR)
11765 __lpfc_sli_release_iocbq(phba, abtsiocbq);
11769 spin_unlock_irqrestore(&phba->hbalock, iflags);
11774 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
11775 * @phba: Pointer to HBA context object.
11776 * @cmdiocbq: Pointer to command iocb.
11777 * @rspiocbq: Pointer to response iocb.
11779 * This function is the completion handler for iocbs issued using
11780 * lpfc_sli_issue_iocb_wait function. This function is called by the
11781 * ring event handler function without any lock held. This function
11782 * can be called from both worker thread context and interrupt
11783 * context. This function also can be called from other thread which
11784 * cleans up the SLI layer objects.
11785 * This function copy the contents of the response iocb to the
11786 * response iocb memory object provided by the caller of
11787 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
11788 * sleeps for the iocb completion.
11791 lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
11792 struct lpfc_iocbq *cmdiocbq,
11793 struct lpfc_iocbq *rspiocbq)
11795 wait_queue_head_t *pdone_q;
11796 unsigned long iflags;
11797 struct lpfc_io_buf *lpfc_cmd;
11799 spin_lock_irqsave(&phba->hbalock, iflags);
11800 if (cmdiocbq->iocb_flag & LPFC_IO_WAKE_TMO) {
11803 * A time out has occurred for the iocb. If a time out
11804 * completion handler has been supplied, call it. Otherwise,
11805 * just free the iocbq.
11808 spin_unlock_irqrestore(&phba->hbalock, iflags);
11809 cmdiocbq->iocb_cmpl = cmdiocbq->wait_iocb_cmpl;
11810 cmdiocbq->wait_iocb_cmpl = NULL;
11811 if (cmdiocbq->iocb_cmpl)
11812 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, NULL);
11814 lpfc_sli_release_iocbq(phba, cmdiocbq);
11818 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
11819 if (cmdiocbq->context2 && rspiocbq)
11820 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
11821 &rspiocbq->iocb, sizeof(IOCB_t));
11823 /* Set the exchange busy flag for task management commands */
11824 if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) &&
11825 !(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) {
11826 lpfc_cmd = container_of(cmdiocbq, struct lpfc_io_buf,
11828 if (rspiocbq && (rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY))
11829 lpfc_cmd->flags |= LPFC_SBUF_XBUSY;
11831 lpfc_cmd->flags &= ~LPFC_SBUF_XBUSY;
11834 pdone_q = cmdiocbq->context_un.wait_queue;
11837 spin_unlock_irqrestore(&phba->hbalock, iflags);
11842 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
11843 * @phba: Pointer to HBA context object..
11844 * @piocbq: Pointer to command iocb.
11845 * @flag: Flag to test.
11847 * This routine grabs the hbalock and then test the iocb_flag to
11848 * see if the passed in flag is set.
11850 * 1 if flag is set.
11851 * 0 if flag is not set.
11854 lpfc_chk_iocb_flg(struct lpfc_hba *phba,
11855 struct lpfc_iocbq *piocbq, uint32_t flag)
11857 unsigned long iflags;
11860 spin_lock_irqsave(&phba->hbalock, iflags);
11861 ret = piocbq->iocb_flag & flag;
11862 spin_unlock_irqrestore(&phba->hbalock, iflags);
11868 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
11869 * @phba: Pointer to HBA context object..
11870 * @pring: Pointer to sli ring.
11871 * @piocb: Pointer to command iocb.
11872 * @prspiocbq: Pointer to response iocb.
11873 * @timeout: Timeout in number of seconds.
11875 * This function issues the iocb to firmware and waits for the
11876 * iocb to complete. The iocb_cmpl field of the shall be used
11877 * to handle iocbs which time out. If the field is NULL, the
11878 * function shall free the iocbq structure. If more clean up is
11879 * needed, the caller is expected to provide a completion function
11880 * that will provide the needed clean up. If the iocb command is
11881 * not completed within timeout seconds, the function will either
11882 * free the iocbq structure (if iocb_cmpl == NULL) or execute the
11883 * completion function set in the iocb_cmpl field and then return
11884 * a status of IOCB_TIMEDOUT. The caller should not free the iocb
11885 * resources if this function returns IOCB_TIMEDOUT.
11886 * The function waits for the iocb completion using an
11887 * non-interruptible wait.
11888 * This function will sleep while waiting for iocb completion.
11889 * So, this function should not be called from any context which
11890 * does not allow sleeping. Due to the same reason, this function
11891 * cannot be called with interrupt disabled.
11892 * This function assumes that the iocb completions occur while
11893 * this function sleep. So, this function cannot be called from
11894 * the thread which process iocb completion for this ring.
11895 * This function clears the iocb_flag of the iocb object before
11896 * issuing the iocb and the iocb completion handler sets this
11897 * flag and wakes this thread when the iocb completes.
11898 * The contents of the response iocb will be copied to prspiocbq
11899 * by the completion handler when the command completes.
11900 * This function returns IOCB_SUCCESS when success.
11901 * This function is called with no lock held.
11904 lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
11905 uint32_t ring_number,
11906 struct lpfc_iocbq *piocb,
11907 struct lpfc_iocbq *prspiocbq,
11910 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
11911 long timeleft, timeout_req = 0;
11912 int retval = IOCB_SUCCESS;
11914 struct lpfc_iocbq *iocb;
11916 int txcmplq_cnt = 0;
11917 struct lpfc_sli_ring *pring;
11918 unsigned long iflags;
11919 bool iocb_completed = true;
11921 if (phba->sli_rev >= LPFC_SLI_REV4)
11922 pring = lpfc_sli4_calc_ring(phba, piocb);
11924 pring = &phba->sli.sli3_ring[ring_number];
11926 * If the caller has provided a response iocbq buffer, then context2
11927 * is NULL or its an error.
11930 if (piocb->context2)
11932 piocb->context2 = prspiocbq;
11935 piocb->wait_iocb_cmpl = piocb->iocb_cmpl;
11936 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
11937 piocb->context_un.wait_queue = &done_q;
11938 piocb->iocb_flag &= ~(LPFC_IO_WAKE | LPFC_IO_WAKE_TMO);
11940 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
11941 if (lpfc_readl(phba->HCregaddr, &creg_val))
11943 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
11944 writel(creg_val, phba->HCregaddr);
11945 readl(phba->HCregaddr); /* flush */
11948 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb,
11949 SLI_IOCB_RET_IOCB);
11950 if (retval == IOCB_SUCCESS) {
11951 timeout_req = msecs_to_jiffies(timeout * 1000);
11952 timeleft = wait_event_timeout(done_q,
11953 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
11955 spin_lock_irqsave(&phba->hbalock, iflags);
11956 if (!(piocb->iocb_flag & LPFC_IO_WAKE)) {
11959 * IOCB timed out. Inform the wake iocb wait
11960 * completion function and set local status
11963 iocb_completed = false;
11964 piocb->iocb_flag |= LPFC_IO_WAKE_TMO;
11966 spin_unlock_irqrestore(&phba->hbalock, iflags);
11967 if (iocb_completed) {
11968 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11969 "0331 IOCB wake signaled\n");
11970 /* Note: we are not indicating if the IOCB has a success
11971 * status or not - that's for the caller to check.
11972 * IOCB_SUCCESS means just that the command was sent and
11973 * completed. Not that it completed successfully.
11975 } else if (timeleft == 0) {
11976 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11977 "0338 IOCB wait timeout error - no "
11978 "wake response Data x%x\n", timeout);
11979 retval = IOCB_TIMEDOUT;
11981 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11982 "0330 IOCB wake NOT set, "
11984 timeout, (timeleft / jiffies));
11985 retval = IOCB_TIMEDOUT;
11987 } else if (retval == IOCB_BUSY) {
11988 if (phba->cfg_log_verbose & LOG_SLI) {
11989 list_for_each_entry(iocb, &pring->txq, list) {
11992 list_for_each_entry(iocb, &pring->txcmplq, list) {
11995 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11996 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
11997 phba->iocb_cnt, txq_cnt, txcmplq_cnt);
12001 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
12002 "0332 IOCB wait issue failed, Data x%x\n",
12004 retval = IOCB_ERROR;
12007 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
12008 if (lpfc_readl(phba->HCregaddr, &creg_val))
12010 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
12011 writel(creg_val, phba->HCregaddr);
12012 readl(phba->HCregaddr); /* flush */
12016 piocb->context2 = NULL;
12018 piocb->context_un.wait_queue = NULL;
12019 piocb->iocb_cmpl = NULL;
12024 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
12025 * @phba: Pointer to HBA context object.
12026 * @pmboxq: Pointer to driver mailbox object.
12027 * @timeout: Timeout in number of seconds.
12029 * This function issues the mailbox to firmware and waits for the
12030 * mailbox command to complete. If the mailbox command is not
12031 * completed within timeout seconds, it returns MBX_TIMEOUT.
12032 * The function waits for the mailbox completion using an
12033 * interruptible wait. If the thread is woken up due to a
12034 * signal, MBX_TIMEOUT error is returned to the caller. Caller
12035 * should not free the mailbox resources, if this function returns
12037 * This function will sleep while waiting for mailbox completion.
12038 * So, this function should not be called from any context which
12039 * does not allow sleeping. Due to the same reason, this function
12040 * cannot be called with interrupt disabled.
12041 * This function assumes that the mailbox completion occurs while
12042 * this function sleep. So, this function cannot be called from
12043 * the worker thread which processes mailbox completion.
12044 * This function is called in the context of HBA management
12046 * This function returns MBX_SUCCESS when successful.
12047 * This function is called with no lock held.
12050 lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
12053 struct completion mbox_done;
12055 unsigned long flag;
12057 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
12058 /* setup wake call as IOCB callback */
12059 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
12061 /* setup context3 field to pass wait_queue pointer to wake function */
12062 init_completion(&mbox_done);
12063 pmboxq->context3 = &mbox_done;
12064 /* now issue the command */
12065 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
12066 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
12067 wait_for_completion_timeout(&mbox_done,
12068 msecs_to_jiffies(timeout * 1000));
12070 spin_lock_irqsave(&phba->hbalock, flag);
12071 pmboxq->context3 = NULL;
12073 * if LPFC_MBX_WAKE flag is set the mailbox is completed
12074 * else do not free the resources.
12076 if (pmboxq->mbox_flag & LPFC_MBX_WAKE) {
12077 retval = MBX_SUCCESS;
12079 retval = MBX_TIMEOUT;
12080 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12082 spin_unlock_irqrestore(&phba->hbalock, flag);
12088 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
12089 * @phba: Pointer to HBA context.
12091 * This function is called to shutdown the driver's mailbox sub-system.
12092 * It first marks the mailbox sub-system is in a block state to prevent
12093 * the asynchronous mailbox command from issued off the pending mailbox
12094 * command queue. If the mailbox command sub-system shutdown is due to
12095 * HBA error conditions such as EEH or ERATT, this routine shall invoke
12096 * the mailbox sub-system flush routine to forcefully bring down the
12097 * mailbox sub-system. Otherwise, if it is due to normal condition (such
12098 * as with offline or HBA function reset), this routine will wait for the
12099 * outstanding mailbox command to complete before invoking the mailbox
12100 * sub-system flush routine to gracefully bring down mailbox sub-system.
12103 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba, int mbx_action)
12105 struct lpfc_sli *psli = &phba->sli;
12106 unsigned long timeout;
12108 if (mbx_action == LPFC_MBX_NO_WAIT) {
12109 /* delay 100ms for port state */
12111 lpfc_sli_mbox_sys_flush(phba);
12114 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
12116 /* Disable softirqs, including timers from obtaining phba->hbalock */
12117 local_bh_disable();
12119 spin_lock_irq(&phba->hbalock);
12120 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
12122 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
12123 /* Determine how long we might wait for the active mailbox
12124 * command to be gracefully completed by firmware.
12126 if (phba->sli.mbox_active)
12127 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
12128 phba->sli.mbox_active) *
12130 spin_unlock_irq(&phba->hbalock);
12132 /* Enable softirqs again, done with phba->hbalock */
12135 while (phba->sli.mbox_active) {
12136 /* Check active mailbox complete status every 2ms */
12138 if (time_after(jiffies, timeout))
12139 /* Timeout, let the mailbox flush routine to
12140 * forcefully release active mailbox command
12145 spin_unlock_irq(&phba->hbalock);
12147 /* Enable softirqs again, done with phba->hbalock */
12151 lpfc_sli_mbox_sys_flush(phba);
12155 * lpfc_sli_eratt_read - read sli-3 error attention events
12156 * @phba: Pointer to HBA context.
12158 * This function is called to read the SLI3 device error attention registers
12159 * for possible error attention events. The caller must hold the hostlock
12160 * with spin_lock_irq().
12162 * This function returns 1 when there is Error Attention in the Host Attention
12163 * Register and returns 0 otherwise.
12166 lpfc_sli_eratt_read(struct lpfc_hba *phba)
12170 /* Read chip Host Attention (HA) register */
12171 if (lpfc_readl(phba->HAregaddr, &ha_copy))
12174 if (ha_copy & HA_ERATT) {
12175 /* Read host status register to retrieve error event */
12176 if (lpfc_sli_read_hs(phba))
12179 /* Check if there is a deferred error condition is active */
12180 if ((HS_FFER1 & phba->work_hs) &&
12181 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
12182 HS_FFER6 | HS_FFER7 | HS_FFER8) & phba->work_hs)) {
12183 phba->hba_flag |= DEFER_ERATT;
12184 /* Clear all interrupt enable conditions */
12185 writel(0, phba->HCregaddr);
12186 readl(phba->HCregaddr);
12189 /* Set the driver HA work bitmap */
12190 phba->work_ha |= HA_ERATT;
12191 /* Indicate polling handles this ERATT */
12192 phba->hba_flag |= HBA_ERATT_HANDLED;
12198 /* Set the driver HS work bitmap */
12199 phba->work_hs |= UNPLUG_ERR;
12200 /* Set the driver HA work bitmap */
12201 phba->work_ha |= HA_ERATT;
12202 /* Indicate polling handles this ERATT */
12203 phba->hba_flag |= HBA_ERATT_HANDLED;
12208 * lpfc_sli4_eratt_read - read sli-4 error attention events
12209 * @phba: Pointer to HBA context.
12211 * This function is called to read the SLI4 device error attention registers
12212 * for possible error attention events. The caller must hold the hostlock
12213 * with spin_lock_irq().
12215 * This function returns 1 when there is Error Attention in the Host Attention
12216 * Register and returns 0 otherwise.
12219 lpfc_sli4_eratt_read(struct lpfc_hba *phba)
12221 uint32_t uerr_sta_hi, uerr_sta_lo;
12222 uint32_t if_type, portsmphr;
12223 struct lpfc_register portstat_reg;
12226 * For now, use the SLI4 device internal unrecoverable error
12227 * registers for error attention. This can be changed later.
12229 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
12231 case LPFC_SLI_INTF_IF_TYPE_0:
12232 if (lpfc_readl(phba->sli4_hba.u.if_type0.UERRLOregaddr,
12234 lpfc_readl(phba->sli4_hba.u.if_type0.UERRHIregaddr,
12236 phba->work_hs |= UNPLUG_ERR;
12237 phba->work_ha |= HA_ERATT;
12238 phba->hba_flag |= HBA_ERATT_HANDLED;
12241 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
12242 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
12243 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12244 "1423 HBA Unrecoverable error: "
12245 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
12246 "ue_mask_lo_reg=0x%x, "
12247 "ue_mask_hi_reg=0x%x\n",
12248 uerr_sta_lo, uerr_sta_hi,
12249 phba->sli4_hba.ue_mask_lo,
12250 phba->sli4_hba.ue_mask_hi);
12251 phba->work_status[0] = uerr_sta_lo;
12252 phba->work_status[1] = uerr_sta_hi;
12253 phba->work_ha |= HA_ERATT;
12254 phba->hba_flag |= HBA_ERATT_HANDLED;
12258 case LPFC_SLI_INTF_IF_TYPE_2:
12259 case LPFC_SLI_INTF_IF_TYPE_6:
12260 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
12261 &portstat_reg.word0) ||
12262 lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
12264 phba->work_hs |= UNPLUG_ERR;
12265 phba->work_ha |= HA_ERATT;
12266 phba->hba_flag |= HBA_ERATT_HANDLED;
12269 if (bf_get(lpfc_sliport_status_err, &portstat_reg)) {
12270 phba->work_status[0] =
12271 readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
12272 phba->work_status[1] =
12273 readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
12274 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12275 "2885 Port Status Event: "
12276 "port status reg 0x%x, "
12277 "port smphr reg 0x%x, "
12278 "error 1=0x%x, error 2=0x%x\n",
12279 portstat_reg.word0,
12281 phba->work_status[0],
12282 phba->work_status[1]);
12283 phba->work_ha |= HA_ERATT;
12284 phba->hba_flag |= HBA_ERATT_HANDLED;
12288 case LPFC_SLI_INTF_IF_TYPE_1:
12290 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12291 "2886 HBA Error Attention on unsupported "
12292 "if type %d.", if_type);
12300 * lpfc_sli_check_eratt - check error attention events
12301 * @phba: Pointer to HBA context.
12303 * This function is called from timer soft interrupt context to check HBA's
12304 * error attention register bit for error attention events.
12306 * This function returns 1 when there is Error Attention in the Host Attention
12307 * Register and returns 0 otherwise.
12310 lpfc_sli_check_eratt(struct lpfc_hba *phba)
12314 /* If somebody is waiting to handle an eratt, don't process it
12315 * here. The brdkill function will do this.
12317 if (phba->link_flag & LS_IGNORE_ERATT)
12320 /* Check if interrupt handler handles this ERATT */
12321 spin_lock_irq(&phba->hbalock);
12322 if (phba->hba_flag & HBA_ERATT_HANDLED) {
12323 /* Interrupt handler has handled ERATT */
12324 spin_unlock_irq(&phba->hbalock);
12329 * If there is deferred error attention, do not check for error
12332 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
12333 spin_unlock_irq(&phba->hbalock);
12337 /* If PCI channel is offline, don't process it */
12338 if (unlikely(pci_channel_offline(phba->pcidev))) {
12339 spin_unlock_irq(&phba->hbalock);
12343 switch (phba->sli_rev) {
12344 case LPFC_SLI_REV2:
12345 case LPFC_SLI_REV3:
12346 /* Read chip Host Attention (HA) register */
12347 ha_copy = lpfc_sli_eratt_read(phba);
12349 case LPFC_SLI_REV4:
12350 /* Read device Uncoverable Error (UERR) registers */
12351 ha_copy = lpfc_sli4_eratt_read(phba);
12354 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12355 "0299 Invalid SLI revision (%d)\n",
12360 spin_unlock_irq(&phba->hbalock);
12366 * lpfc_intr_state_check - Check device state for interrupt handling
12367 * @phba: Pointer to HBA context.
12369 * This inline routine checks whether a device or its PCI slot is in a state
12370 * that the interrupt should be handled.
12372 * This function returns 0 if the device or the PCI slot is in a state that
12373 * interrupt should be handled, otherwise -EIO.
12376 lpfc_intr_state_check(struct lpfc_hba *phba)
12378 /* If the pci channel is offline, ignore all the interrupts */
12379 if (unlikely(pci_channel_offline(phba->pcidev)))
12382 /* Update device level interrupt statistics */
12383 phba->sli.slistat.sli_intr++;
12385 /* Ignore all interrupts during initialization. */
12386 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
12393 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
12394 * @irq: Interrupt number.
12395 * @dev_id: The device context pointer.
12397 * This function is directly called from the PCI layer as an interrupt
12398 * service routine when device with SLI-3 interface spec is enabled with
12399 * MSI-X multi-message interrupt mode and there are slow-path events in
12400 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
12401 * interrupt mode, this function is called as part of the device-level
12402 * interrupt handler. When the PCI slot is in error recovery or the HBA
12403 * is undergoing initialization, the interrupt handler will not process
12404 * the interrupt. The link attention and ELS ring attention events are
12405 * handled by the worker thread. The interrupt handler signals the worker
12406 * thread and returns for these events. This function is called without
12407 * any lock held. It gets the hbalock to access and update SLI data
12410 * This function returns IRQ_HANDLED when interrupt is handled else it
12411 * returns IRQ_NONE.
12414 lpfc_sli_sp_intr_handler(int irq, void *dev_id)
12416 struct lpfc_hba *phba;
12417 uint32_t ha_copy, hc_copy;
12418 uint32_t work_ha_copy;
12419 unsigned long status;
12420 unsigned long iflag;
12423 MAILBOX_t *mbox, *pmbox;
12424 struct lpfc_vport *vport;
12425 struct lpfc_nodelist *ndlp;
12426 struct lpfc_dmabuf *mp;
12431 * Get the driver's phba structure from the dev_id and
12432 * assume the HBA is not interrupting.
12434 phba = (struct lpfc_hba *)dev_id;
12436 if (unlikely(!phba))
12440 * Stuff needs to be attented to when this function is invoked as an
12441 * individual interrupt handler in MSI-X multi-message interrupt mode
12443 if (phba->intr_type == MSIX) {
12444 /* Check device state for handling interrupt */
12445 if (lpfc_intr_state_check(phba))
12447 /* Need to read HA REG for slow-path events */
12448 spin_lock_irqsave(&phba->hbalock, iflag);
12449 if (lpfc_readl(phba->HAregaddr, &ha_copy))
12451 /* If somebody is waiting to handle an eratt don't process it
12452 * here. The brdkill function will do this.
12454 if (phba->link_flag & LS_IGNORE_ERATT)
12455 ha_copy &= ~HA_ERATT;
12456 /* Check the need for handling ERATT in interrupt handler */
12457 if (ha_copy & HA_ERATT) {
12458 if (phba->hba_flag & HBA_ERATT_HANDLED)
12459 /* ERATT polling has handled ERATT */
12460 ha_copy &= ~HA_ERATT;
12462 /* Indicate interrupt handler handles ERATT */
12463 phba->hba_flag |= HBA_ERATT_HANDLED;
12467 * If there is deferred error attention, do not check for any
12470 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
12471 spin_unlock_irqrestore(&phba->hbalock, iflag);
12475 /* Clear up only attention source related to slow-path */
12476 if (lpfc_readl(phba->HCregaddr, &hc_copy))
12479 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
12480 HC_LAINT_ENA | HC_ERINT_ENA),
12482 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
12484 writel(hc_copy, phba->HCregaddr);
12485 readl(phba->HAregaddr); /* flush */
12486 spin_unlock_irqrestore(&phba->hbalock, iflag);
12488 ha_copy = phba->ha_copy;
12490 work_ha_copy = ha_copy & phba->work_ha_mask;
12492 if (work_ha_copy) {
12493 if (work_ha_copy & HA_LATT) {
12494 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
12496 * Turn off Link Attention interrupts
12497 * until CLEAR_LA done
12499 spin_lock_irqsave(&phba->hbalock, iflag);
12500 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
12501 if (lpfc_readl(phba->HCregaddr, &control))
12503 control &= ~HC_LAINT_ENA;
12504 writel(control, phba->HCregaddr);
12505 readl(phba->HCregaddr); /* flush */
12506 spin_unlock_irqrestore(&phba->hbalock, iflag);
12509 work_ha_copy &= ~HA_LATT;
12512 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
12514 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
12515 * the only slow ring.
12517 status = (work_ha_copy &
12518 (HA_RXMASK << (4*LPFC_ELS_RING)));
12519 status >>= (4*LPFC_ELS_RING);
12520 if (status & HA_RXMASK) {
12521 spin_lock_irqsave(&phba->hbalock, iflag);
12522 if (lpfc_readl(phba->HCregaddr, &control))
12525 lpfc_debugfs_slow_ring_trc(phba,
12526 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
12528 (uint32_t)phba->sli.slistat.sli_intr);
12530 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
12531 lpfc_debugfs_slow_ring_trc(phba,
12532 "ISR Disable ring:"
12533 "pwork:x%x hawork:x%x wait:x%x",
12534 phba->work_ha, work_ha_copy,
12535 (uint32_t)((unsigned long)
12536 &phba->work_waitq));
12539 ~(HC_R0INT_ENA << LPFC_ELS_RING);
12540 writel(control, phba->HCregaddr);
12541 readl(phba->HCregaddr); /* flush */
12544 lpfc_debugfs_slow_ring_trc(phba,
12545 "ISR slow ring: pwork:"
12546 "x%x hawork:x%x wait:x%x",
12547 phba->work_ha, work_ha_copy,
12548 (uint32_t)((unsigned long)
12549 &phba->work_waitq));
12551 spin_unlock_irqrestore(&phba->hbalock, iflag);
12554 spin_lock_irqsave(&phba->hbalock, iflag);
12555 if (work_ha_copy & HA_ERATT) {
12556 if (lpfc_sli_read_hs(phba))
12559 * Check if there is a deferred error condition
12562 if ((HS_FFER1 & phba->work_hs) &&
12563 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
12564 HS_FFER6 | HS_FFER7 | HS_FFER8) &
12566 phba->hba_flag |= DEFER_ERATT;
12567 /* Clear all interrupt enable conditions */
12568 writel(0, phba->HCregaddr);
12569 readl(phba->HCregaddr);
12573 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
12574 pmb = phba->sli.mbox_active;
12575 pmbox = &pmb->u.mb;
12577 vport = pmb->vport;
12579 /* First check out the status word */
12580 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
12581 if (pmbox->mbxOwner != OWN_HOST) {
12582 spin_unlock_irqrestore(&phba->hbalock, iflag);
12584 * Stray Mailbox Interrupt, mbxCommand <cmd>
12585 * mbxStatus <status>
12587 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
12589 "(%d):0304 Stray Mailbox "
12590 "Interrupt mbxCommand x%x "
12592 (vport ? vport->vpi : 0),
12595 /* clear mailbox attention bit */
12596 work_ha_copy &= ~HA_MBATT;
12598 phba->sli.mbox_active = NULL;
12599 spin_unlock_irqrestore(&phba->hbalock, iflag);
12600 phba->last_completion_time = jiffies;
12601 del_timer(&phba->sli.mbox_tmo);
12602 if (pmb->mbox_cmpl) {
12603 lpfc_sli_pcimem_bcopy(mbox, pmbox,
12605 if (pmb->out_ext_byte_len &&
12607 lpfc_sli_pcimem_bcopy(
12610 pmb->out_ext_byte_len);
12612 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
12613 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
12615 lpfc_debugfs_disc_trc(vport,
12616 LPFC_DISC_TRC_MBOX_VPORT,
12617 "MBOX dflt rpi: : "
12618 "status:x%x rpi:x%x",
12619 (uint32_t)pmbox->mbxStatus,
12620 pmbox->un.varWords[0], 0);
12622 if (!pmbox->mbxStatus) {
12623 mp = (struct lpfc_dmabuf *)
12625 ndlp = (struct lpfc_nodelist *)
12628 /* Reg_LOGIN of dflt RPI was
12629 * successful. new lets get
12630 * rid of the RPI using the
12631 * same mbox buffer.
12633 lpfc_unreg_login(phba,
12635 pmbox->un.varWords[0],
12638 lpfc_mbx_cmpl_dflt_rpi;
12640 pmb->ctx_ndlp = ndlp;
12641 pmb->vport = vport;
12642 rc = lpfc_sli_issue_mbox(phba,
12645 if (rc != MBX_BUSY)
12646 lpfc_printf_log(phba,
12648 LOG_MBOX | LOG_SLI,
12649 "0350 rc should have"
12650 "been MBX_BUSY\n");
12651 if (rc != MBX_NOT_FINISHED)
12652 goto send_current_mbox;
12656 &phba->pport->work_port_lock,
12658 phba->pport->work_port_events &=
12660 spin_unlock_irqrestore(
12661 &phba->pport->work_port_lock,
12663 lpfc_mbox_cmpl_put(phba, pmb);
12666 spin_unlock_irqrestore(&phba->hbalock, iflag);
12668 if ((work_ha_copy & HA_MBATT) &&
12669 (phba->sli.mbox_active == NULL)) {
12671 /* Process next mailbox command if there is one */
12673 rc = lpfc_sli_issue_mbox(phba, NULL,
12675 } while (rc == MBX_NOT_FINISHED);
12676 if (rc != MBX_SUCCESS)
12677 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
12678 LOG_SLI, "0349 rc should be "
12682 spin_lock_irqsave(&phba->hbalock, iflag);
12683 phba->work_ha |= work_ha_copy;
12684 spin_unlock_irqrestore(&phba->hbalock, iflag);
12685 lpfc_worker_wake_up(phba);
12687 return IRQ_HANDLED;
12689 spin_unlock_irqrestore(&phba->hbalock, iflag);
12690 return IRQ_HANDLED;
12692 } /* lpfc_sli_sp_intr_handler */
12695 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
12696 * @irq: Interrupt number.
12697 * @dev_id: The device context pointer.
12699 * This function is directly called from the PCI layer as an interrupt
12700 * service routine when device with SLI-3 interface spec is enabled with
12701 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
12702 * ring event in the HBA. However, when the device is enabled with either
12703 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
12704 * device-level interrupt handler. When the PCI slot is in error recovery
12705 * or the HBA is undergoing initialization, the interrupt handler will not
12706 * process the interrupt. The SCSI FCP fast-path ring event are handled in
12707 * the intrrupt context. This function is called without any lock held.
12708 * It gets the hbalock to access and update SLI data structures.
12710 * This function returns IRQ_HANDLED when interrupt is handled else it
12711 * returns IRQ_NONE.
12714 lpfc_sli_fp_intr_handler(int irq, void *dev_id)
12716 struct lpfc_hba *phba;
12718 unsigned long status;
12719 unsigned long iflag;
12720 struct lpfc_sli_ring *pring;
12722 /* Get the driver's phba structure from the dev_id and
12723 * assume the HBA is not interrupting.
12725 phba = (struct lpfc_hba *) dev_id;
12727 if (unlikely(!phba))
12731 * Stuff needs to be attented to when this function is invoked as an
12732 * individual interrupt handler in MSI-X multi-message interrupt mode
12734 if (phba->intr_type == MSIX) {
12735 /* Check device state for handling interrupt */
12736 if (lpfc_intr_state_check(phba))
12738 /* Need to read HA REG for FCP ring and other ring events */
12739 if (lpfc_readl(phba->HAregaddr, &ha_copy))
12740 return IRQ_HANDLED;
12741 /* Clear up only attention source related to fast-path */
12742 spin_lock_irqsave(&phba->hbalock, iflag);
12744 * If there is deferred error attention, do not check for
12747 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
12748 spin_unlock_irqrestore(&phba->hbalock, iflag);
12751 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
12753 readl(phba->HAregaddr); /* flush */
12754 spin_unlock_irqrestore(&phba->hbalock, iflag);
12756 ha_copy = phba->ha_copy;
12759 * Process all events on FCP ring. Take the optimized path for FCP IO.
12761 ha_copy &= ~(phba->work_ha_mask);
12763 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
12764 status >>= (4*LPFC_FCP_RING);
12765 pring = &phba->sli.sli3_ring[LPFC_FCP_RING];
12766 if (status & HA_RXMASK)
12767 lpfc_sli_handle_fast_ring_event(phba, pring, status);
12769 if (phba->cfg_multi_ring_support == 2) {
12771 * Process all events on extra ring. Take the optimized path
12772 * for extra ring IO.
12774 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
12775 status >>= (4*LPFC_EXTRA_RING);
12776 if (status & HA_RXMASK) {
12777 lpfc_sli_handle_fast_ring_event(phba,
12778 &phba->sli.sli3_ring[LPFC_EXTRA_RING],
12782 return IRQ_HANDLED;
12783 } /* lpfc_sli_fp_intr_handler */
12786 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
12787 * @irq: Interrupt number.
12788 * @dev_id: The device context pointer.
12790 * This function is the HBA device-level interrupt handler to device with
12791 * SLI-3 interface spec, called from the PCI layer when either MSI or
12792 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
12793 * requires driver attention. This function invokes the slow-path interrupt
12794 * attention handling function and fast-path interrupt attention handling
12795 * function in turn to process the relevant HBA attention events. This
12796 * function is called without any lock held. It gets the hbalock to access
12797 * and update SLI data structures.
12799 * This function returns IRQ_HANDLED when interrupt is handled, else it
12800 * returns IRQ_NONE.
12803 lpfc_sli_intr_handler(int irq, void *dev_id)
12805 struct lpfc_hba *phba;
12806 irqreturn_t sp_irq_rc, fp_irq_rc;
12807 unsigned long status1, status2;
12811 * Get the driver's phba structure from the dev_id and
12812 * assume the HBA is not interrupting.
12814 phba = (struct lpfc_hba *) dev_id;
12816 if (unlikely(!phba))
12819 /* Check device state for handling interrupt */
12820 if (lpfc_intr_state_check(phba))
12823 spin_lock(&phba->hbalock);
12824 if (lpfc_readl(phba->HAregaddr, &phba->ha_copy)) {
12825 spin_unlock(&phba->hbalock);
12826 return IRQ_HANDLED;
12829 if (unlikely(!phba->ha_copy)) {
12830 spin_unlock(&phba->hbalock);
12832 } else if (phba->ha_copy & HA_ERATT) {
12833 if (phba->hba_flag & HBA_ERATT_HANDLED)
12834 /* ERATT polling has handled ERATT */
12835 phba->ha_copy &= ~HA_ERATT;
12837 /* Indicate interrupt handler handles ERATT */
12838 phba->hba_flag |= HBA_ERATT_HANDLED;
12842 * If there is deferred error attention, do not check for any interrupt.
12844 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
12845 spin_unlock(&phba->hbalock);
12849 /* Clear attention sources except link and error attentions */
12850 if (lpfc_readl(phba->HCregaddr, &hc_copy)) {
12851 spin_unlock(&phba->hbalock);
12852 return IRQ_HANDLED;
12854 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
12855 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
12857 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
12858 writel(hc_copy, phba->HCregaddr);
12859 readl(phba->HAregaddr); /* flush */
12860 spin_unlock(&phba->hbalock);
12863 * Invokes slow-path host attention interrupt handling as appropriate.
12866 /* status of events with mailbox and link attention */
12867 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
12869 /* status of events with ELS ring */
12870 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
12871 status2 >>= (4*LPFC_ELS_RING);
12873 if (status1 || (status2 & HA_RXMASK))
12874 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
12876 sp_irq_rc = IRQ_NONE;
12879 * Invoke fast-path host attention interrupt handling as appropriate.
12882 /* status of events with FCP ring */
12883 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
12884 status1 >>= (4*LPFC_FCP_RING);
12886 /* status of events with extra ring */
12887 if (phba->cfg_multi_ring_support == 2) {
12888 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
12889 status2 >>= (4*LPFC_EXTRA_RING);
12893 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
12894 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
12896 fp_irq_rc = IRQ_NONE;
12898 /* Return device-level interrupt handling status */
12899 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
12900 } /* lpfc_sli_intr_handler */
12903 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
12904 * @phba: pointer to lpfc hba data structure.
12906 * This routine is invoked by the worker thread to process all the pending
12907 * SLI4 els abort xri events.
12909 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
12911 struct lpfc_cq_event *cq_event;
12913 /* First, declare the els xri abort event has been handled */
12914 spin_lock_irq(&phba->hbalock);
12915 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
12916 spin_unlock_irq(&phba->hbalock);
12917 /* Now, handle all the els xri abort events */
12918 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
12919 /* Get the first event from the head of the event queue */
12920 spin_lock_irq(&phba->hbalock);
12921 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
12922 cq_event, struct lpfc_cq_event, list);
12923 spin_unlock_irq(&phba->hbalock);
12924 /* Notify aborted XRI for ELS work queue */
12925 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
12926 /* Free the event processed back to the free pool */
12927 lpfc_sli4_cq_event_release(phba, cq_event);
12932 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
12933 * @phba: pointer to lpfc hba data structure
12934 * @pIocbIn: pointer to the rspiocbq
12935 * @pIocbOut: pointer to the cmdiocbq
12936 * @wcqe: pointer to the complete wcqe
12938 * This routine transfers the fields of a command iocbq to a response iocbq
12939 * by copying all the IOCB fields from command iocbq and transferring the
12940 * completion status information from the complete wcqe.
12943 lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
12944 struct lpfc_iocbq *pIocbIn,
12945 struct lpfc_iocbq *pIocbOut,
12946 struct lpfc_wcqe_complete *wcqe)
12949 unsigned long iflags;
12950 uint32_t status, max_response;
12951 struct lpfc_dmabuf *dmabuf;
12952 struct ulp_bde64 *bpl, bde;
12953 size_t offset = offsetof(struct lpfc_iocbq, iocb);
12955 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
12956 sizeof(struct lpfc_iocbq) - offset);
12957 /* Map WCQE parameters into irspiocb parameters */
12958 status = bf_get(lpfc_wcqe_c_status, wcqe);
12959 pIocbIn->iocb.ulpStatus = (status & LPFC_IOCB_STATUS_MASK);
12960 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
12961 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
12962 pIocbIn->iocb.un.fcpi.fcpi_parm =
12963 pIocbOut->iocb.un.fcpi.fcpi_parm -
12964 wcqe->total_data_placed;
12966 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
12968 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
12969 switch (pIocbOut->iocb.ulpCommand) {
12970 case CMD_ELS_REQUEST64_CR:
12971 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
12972 bpl = (struct ulp_bde64 *)dmabuf->virt;
12973 bde.tus.w = le32_to_cpu(bpl[1].tus.w);
12974 max_response = bde.tus.f.bdeSize;
12976 case CMD_GEN_REQUEST64_CR:
12978 if (!pIocbOut->context3)
12980 numBdes = pIocbOut->iocb.un.genreq64.bdl.bdeSize/
12981 sizeof(struct ulp_bde64);
12982 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
12983 bpl = (struct ulp_bde64 *)dmabuf->virt;
12984 for (i = 0; i < numBdes; i++) {
12985 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
12986 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
12987 max_response += bde.tus.f.bdeSize;
12991 max_response = wcqe->total_data_placed;
12994 if (max_response < wcqe->total_data_placed)
12995 pIocbIn->iocb.un.genreq64.bdl.bdeSize = max_response;
12997 pIocbIn->iocb.un.genreq64.bdl.bdeSize =
12998 wcqe->total_data_placed;
13001 /* Convert BG errors for completion status */
13002 if (status == CQE_STATUS_DI_ERROR) {
13003 pIocbIn->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
13005 if (bf_get(lpfc_wcqe_c_bg_edir, wcqe))
13006 pIocbIn->iocb.un.ulpWord[4] = IOERR_RX_DMA_FAILED;
13008 pIocbIn->iocb.un.ulpWord[4] = IOERR_TX_DMA_FAILED;
13010 pIocbIn->iocb.unsli3.sli3_bg.bgstat = 0;
13011 if (bf_get(lpfc_wcqe_c_bg_ge, wcqe)) /* Guard Check failed */
13012 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
13013 BGS_GUARD_ERR_MASK;
13014 if (bf_get(lpfc_wcqe_c_bg_ae, wcqe)) /* App Tag Check failed */
13015 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
13016 BGS_APPTAG_ERR_MASK;
13017 if (bf_get(lpfc_wcqe_c_bg_re, wcqe)) /* Ref Tag Check failed */
13018 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
13019 BGS_REFTAG_ERR_MASK;
13021 /* Check to see if there was any good data before the error */
13022 if (bf_get(lpfc_wcqe_c_bg_tdpv, wcqe)) {
13023 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
13024 BGS_HI_WATER_MARK_PRESENT_MASK;
13025 pIocbIn->iocb.unsli3.sli3_bg.bghm =
13026 wcqe->total_data_placed;
13030 * Set ALL the error bits to indicate we don't know what
13031 * type of error it is.
13033 if (!pIocbIn->iocb.unsli3.sli3_bg.bgstat)
13034 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
13035 (BGS_REFTAG_ERR_MASK | BGS_APPTAG_ERR_MASK |
13036 BGS_GUARD_ERR_MASK);
13039 /* Pick up HBA exchange busy condition */
13040 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
13041 spin_lock_irqsave(&phba->hbalock, iflags);
13042 pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY;
13043 spin_unlock_irqrestore(&phba->hbalock, iflags);
13048 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
13049 * @phba: Pointer to HBA context object.
13050 * @wcqe: Pointer to work-queue completion queue entry.
13052 * This routine handles an ELS work-queue completion event and construct
13053 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
13054 * discovery engine to handle.
13056 * Return: Pointer to the receive IOCBQ, NULL otherwise.
13058 static struct lpfc_iocbq *
13059 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
13060 struct lpfc_iocbq *irspiocbq)
13062 struct lpfc_sli_ring *pring;
13063 struct lpfc_iocbq *cmdiocbq;
13064 struct lpfc_wcqe_complete *wcqe;
13065 unsigned long iflags;
13067 pring = lpfc_phba_elsring(phba);
13068 if (unlikely(!pring))
13071 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
13072 pring->stats.iocb_event++;
13073 /* Look up the ELS command IOCB and create pseudo response IOCB */
13074 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
13075 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13076 if (unlikely(!cmdiocbq)) {
13077 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13078 "0386 ELS complete with no corresponding "
13079 "cmdiocb: 0x%x 0x%x 0x%x 0x%x\n",
13080 wcqe->word0, wcqe->total_data_placed,
13081 wcqe->parameter, wcqe->word3);
13082 lpfc_sli_release_iocbq(phba, irspiocbq);
13086 spin_lock_irqsave(&pring->ring_lock, iflags);
13087 /* Put the iocb back on the txcmplq */
13088 lpfc_sli_ringtxcmpl_put(phba, pring, cmdiocbq);
13089 spin_unlock_irqrestore(&pring->ring_lock, iflags);
13091 /* Fake the irspiocbq and copy necessary response information */
13092 lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe);
13097 inline struct lpfc_cq_event *
13098 lpfc_cq_event_setup(struct lpfc_hba *phba, void *entry, int size)
13100 struct lpfc_cq_event *cq_event;
13102 /* Allocate a new internal CQ_EVENT entry */
13103 cq_event = lpfc_sli4_cq_event_alloc(phba);
13105 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13106 "0602 Failed to alloc CQ_EVENT entry\n");
13110 /* Move the CQE into the event */
13111 memcpy(&cq_event->cqe, entry, size);
13116 * lpfc_sli4_sp_handle_async_event - Handle an asynchronous event
13117 * @phba: Pointer to HBA context object.
13118 * @cqe: Pointer to mailbox completion queue entry.
13120 * This routine process a mailbox completion queue entry with asynchronous
13123 * Return: true if work posted to worker thread, otherwise false.
13126 lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
13128 struct lpfc_cq_event *cq_event;
13129 unsigned long iflags;
13131 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
13132 "0392 Async Event: word0:x%x, word1:x%x, "
13133 "word2:x%x, word3:x%x\n", mcqe->word0,
13134 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
13136 cq_event = lpfc_cq_event_setup(phba, mcqe, sizeof(struct lpfc_mcqe));
13139 spin_lock_irqsave(&phba->hbalock, iflags);
13140 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
13141 /* Set the async event flag */
13142 phba->hba_flag |= ASYNC_EVENT;
13143 spin_unlock_irqrestore(&phba->hbalock, iflags);
13149 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
13150 * @phba: Pointer to HBA context object.
13151 * @cqe: Pointer to mailbox completion queue entry.
13153 * This routine process a mailbox completion queue entry with mailbox
13154 * completion event.
13156 * Return: true if work posted to worker thread, otherwise false.
13159 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
13161 uint32_t mcqe_status;
13162 MAILBOX_t *mbox, *pmbox;
13163 struct lpfc_mqe *mqe;
13164 struct lpfc_vport *vport;
13165 struct lpfc_nodelist *ndlp;
13166 struct lpfc_dmabuf *mp;
13167 unsigned long iflags;
13169 bool workposted = false;
13172 /* If not a mailbox complete MCQE, out by checking mailbox consume */
13173 if (!bf_get(lpfc_trailer_completed, mcqe))
13174 goto out_no_mqe_complete;
13176 /* Get the reference to the active mbox command */
13177 spin_lock_irqsave(&phba->hbalock, iflags);
13178 pmb = phba->sli.mbox_active;
13179 if (unlikely(!pmb)) {
13180 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
13181 "1832 No pending MBOX command to handle\n");
13182 spin_unlock_irqrestore(&phba->hbalock, iflags);
13183 goto out_no_mqe_complete;
13185 spin_unlock_irqrestore(&phba->hbalock, iflags);
13187 pmbox = (MAILBOX_t *)&pmb->u.mqe;
13189 vport = pmb->vport;
13191 /* Reset heartbeat timer */
13192 phba->last_completion_time = jiffies;
13193 del_timer(&phba->sli.mbox_tmo);
13195 /* Move mbox data to caller's mailbox region, do endian swapping */
13196 if (pmb->mbox_cmpl && mbox)
13197 lpfc_sli4_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
13200 * For mcqe errors, conditionally move a modified error code to
13201 * the mbox so that the error will not be missed.
13203 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
13204 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
13205 if (bf_get(lpfc_mqe_status, mqe) == MBX_SUCCESS)
13206 bf_set(lpfc_mqe_status, mqe,
13207 (LPFC_MBX_ERROR_RANGE | mcqe_status));
13209 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
13210 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
13211 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
13212 "MBOX dflt rpi: status:x%x rpi:x%x",
13214 pmbox->un.varWords[0], 0);
13215 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
13216 mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
13217 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
13218 /* Reg_LOGIN of dflt RPI was successful. Now lets get
13219 * RID of the PPI using the same mbox buffer.
13221 lpfc_unreg_login(phba, vport->vpi,
13222 pmbox->un.varWords[0], pmb);
13223 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
13225 pmb->ctx_ndlp = ndlp;
13226 pmb->vport = vport;
13227 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
13228 if (rc != MBX_BUSY)
13229 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
13230 LOG_SLI, "0385 rc should "
13231 "have been MBX_BUSY\n");
13232 if (rc != MBX_NOT_FINISHED)
13233 goto send_current_mbox;
13236 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
13237 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
13238 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
13240 /* There is mailbox completion work to do */
13241 spin_lock_irqsave(&phba->hbalock, iflags);
13242 __lpfc_mbox_cmpl_put(phba, pmb);
13243 phba->work_ha |= HA_MBATT;
13244 spin_unlock_irqrestore(&phba->hbalock, iflags);
13248 spin_lock_irqsave(&phba->hbalock, iflags);
13249 /* Release the mailbox command posting token */
13250 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
13251 /* Setting active mailbox pointer need to be in sync to flag clear */
13252 phba->sli.mbox_active = NULL;
13253 if (bf_get(lpfc_trailer_consumed, mcqe))
13254 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
13255 spin_unlock_irqrestore(&phba->hbalock, iflags);
13256 /* Wake up worker thread to post the next pending mailbox command */
13257 lpfc_worker_wake_up(phba);
13260 out_no_mqe_complete:
13261 spin_lock_irqsave(&phba->hbalock, iflags);
13262 if (bf_get(lpfc_trailer_consumed, mcqe))
13263 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
13264 spin_unlock_irqrestore(&phba->hbalock, iflags);
13269 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
13270 * @phba: Pointer to HBA context object.
13271 * @cqe: Pointer to mailbox completion queue entry.
13273 * This routine process a mailbox completion queue entry, it invokes the
13274 * proper mailbox complete handling or asynchronous event handling routine
13275 * according to the MCQE's async bit.
13277 * Return: true if work posted to worker thread, otherwise false.
13280 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13281 struct lpfc_cqe *cqe)
13283 struct lpfc_mcqe mcqe;
13288 /* Copy the mailbox MCQE and convert endian order as needed */
13289 lpfc_sli4_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
13291 /* Invoke the proper event handling routine */
13292 if (!bf_get(lpfc_trailer_async, &mcqe))
13293 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
13295 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
13300 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
13301 * @phba: Pointer to HBA context object.
13302 * @cq: Pointer to associated CQ
13303 * @wcqe: Pointer to work-queue completion queue entry.
13305 * This routine handles an ELS work-queue completion event.
13307 * Return: true if work posted to worker thread, otherwise false.
13310 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13311 struct lpfc_wcqe_complete *wcqe)
13313 struct lpfc_iocbq *irspiocbq;
13314 unsigned long iflags;
13315 struct lpfc_sli_ring *pring = cq->pring;
13317 int txcmplq_cnt = 0;
13319 /* Check for response status */
13320 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
13321 /* Log the error status */
13322 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
13323 "0357 ELS CQE error: status=x%x: "
13324 "CQE: %08x %08x %08x %08x\n",
13325 bf_get(lpfc_wcqe_c_status, wcqe),
13326 wcqe->word0, wcqe->total_data_placed,
13327 wcqe->parameter, wcqe->word3);
13330 /* Get an irspiocbq for later ELS response processing use */
13331 irspiocbq = lpfc_sli_get_iocbq(phba);
13333 if (!list_empty(&pring->txq))
13335 if (!list_empty(&pring->txcmplq))
13337 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13338 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
13339 "els_txcmplq_cnt=%d\n",
13340 txq_cnt, phba->iocb_cnt,
13345 /* Save off the slow-path queue event for work thread to process */
13346 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
13347 spin_lock_irqsave(&phba->hbalock, iflags);
13348 list_add_tail(&irspiocbq->cq_event.list,
13349 &phba->sli4_hba.sp_queue_event);
13350 phba->hba_flag |= HBA_SP_QUEUE_EVT;
13351 spin_unlock_irqrestore(&phba->hbalock, iflags);
13357 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
13358 * @phba: Pointer to HBA context object.
13359 * @wcqe: Pointer to work-queue completion queue entry.
13361 * This routine handles slow-path WQ entry consumed event by invoking the
13362 * proper WQ release routine to the slow-path WQ.
13365 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
13366 struct lpfc_wcqe_release *wcqe)
13368 /* sanity check on queue memory */
13369 if (unlikely(!phba->sli4_hba.els_wq))
13371 /* Check for the slow-path ELS work queue */
13372 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
13373 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
13374 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
13376 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13377 "2579 Slow-path wqe consume event carries "
13378 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
13379 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
13380 phba->sli4_hba.els_wq->queue_id);
13384 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
13385 * @phba: Pointer to HBA context object.
13386 * @cq: Pointer to a WQ completion queue.
13387 * @wcqe: Pointer to work-queue completion queue entry.
13389 * This routine handles an XRI abort event.
13391 * Return: true if work posted to worker thread, otherwise false.
13394 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
13395 struct lpfc_queue *cq,
13396 struct sli4_wcqe_xri_aborted *wcqe)
13398 bool workposted = false;
13399 struct lpfc_cq_event *cq_event;
13400 unsigned long iflags;
13402 switch (cq->subtype) {
13404 lpfc_sli4_io_xri_aborted(phba, wcqe, cq->hdwq);
13405 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13406 /* Notify aborted XRI for NVME work queue */
13407 if (phba->nvmet_support)
13408 lpfc_sli4_nvmet_xri_aborted(phba, wcqe);
13410 workposted = false;
13412 case LPFC_NVME_LS: /* NVME LS uses ELS resources */
13414 cq_event = lpfc_cq_event_setup(
13415 phba, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
13418 cq_event->hdwq = cq->hdwq;
13419 spin_lock_irqsave(&phba->hbalock, iflags);
13420 list_add_tail(&cq_event->list,
13421 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
13422 /* Set the els xri abort event flag */
13423 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
13424 spin_unlock_irqrestore(&phba->hbalock, iflags);
13428 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13429 "0603 Invalid CQ subtype %d: "
13430 "%08x %08x %08x %08x\n",
13431 cq->subtype, wcqe->word0, wcqe->parameter,
13432 wcqe->word2, wcqe->word3);
13433 workposted = false;
13439 #define FC_RCTL_MDS_DIAGS 0xF4
13442 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
13443 * @phba: Pointer to HBA context object.
13444 * @rcqe: Pointer to receive-queue completion queue entry.
13446 * This routine process a receive-queue completion queue entry.
13448 * Return: true if work posted to worker thread, otherwise false.
13451 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
13453 bool workposted = false;
13454 struct fc_frame_header *fc_hdr;
13455 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
13456 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
13457 struct lpfc_nvmet_tgtport *tgtp;
13458 struct hbq_dmabuf *dma_buf;
13459 uint32_t status, rq_id;
13460 unsigned long iflags;
13462 /* sanity check on queue memory */
13463 if (unlikely(!hrq) || unlikely(!drq))
13466 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
13467 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
13469 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
13470 if (rq_id != hrq->queue_id)
13473 status = bf_get(lpfc_rcqe_status, rcqe);
13475 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
13476 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13477 "2537 Receive Frame Truncated!!\n");
13479 case FC_STATUS_RQ_SUCCESS:
13480 spin_lock_irqsave(&phba->hbalock, iflags);
13481 lpfc_sli4_rq_release(hrq, drq);
13482 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
13484 hrq->RQ_no_buf_found++;
13485 spin_unlock_irqrestore(&phba->hbalock, iflags);
13489 hrq->RQ_buf_posted--;
13490 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
13492 fc_hdr = (struct fc_frame_header *)dma_buf->hbuf.virt;
13494 if (fc_hdr->fh_r_ctl == FC_RCTL_MDS_DIAGS ||
13495 fc_hdr->fh_r_ctl == FC_RCTL_DD_UNSOL_DATA) {
13496 spin_unlock_irqrestore(&phba->hbalock, iflags);
13497 /* Handle MDS Loopback frames */
13498 lpfc_sli4_handle_mds_loopback(phba->pport, dma_buf);
13502 /* save off the frame for the work thread to process */
13503 list_add_tail(&dma_buf->cq_event.list,
13504 &phba->sli4_hba.sp_queue_event);
13505 /* Frame received */
13506 phba->hba_flag |= HBA_SP_QUEUE_EVT;
13507 spin_unlock_irqrestore(&phba->hbalock, iflags);
13510 case FC_STATUS_INSUFF_BUF_FRM_DISC:
13511 if (phba->nvmet_support) {
13512 tgtp = phba->targetport->private;
13513 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_NVME,
13514 "6402 RQE Error x%x, posted %d err_cnt "
13516 status, hrq->RQ_buf_posted,
13517 hrq->RQ_no_posted_buf,
13518 atomic_read(&tgtp->rcv_fcp_cmd_in),
13519 atomic_read(&tgtp->rcv_fcp_cmd_out),
13520 atomic_read(&tgtp->xmt_fcp_release));
13524 case FC_STATUS_INSUFF_BUF_NEED_BUF:
13525 hrq->RQ_no_posted_buf++;
13526 /* Post more buffers if possible */
13527 spin_lock_irqsave(&phba->hbalock, iflags);
13528 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
13529 spin_unlock_irqrestore(&phba->hbalock, iflags);
13538 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
13539 * @phba: Pointer to HBA context object.
13540 * @cq: Pointer to the completion queue.
13541 * @cqe: Pointer to a completion queue entry.
13543 * This routine process a slow-path work-queue or receive queue completion queue
13546 * Return: true if work posted to worker thread, otherwise false.
13549 lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13550 struct lpfc_cqe *cqe)
13552 struct lpfc_cqe cqevt;
13553 bool workposted = false;
13555 /* Copy the work queue CQE and convert endian order if needed */
13556 lpfc_sli4_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
13558 /* Check and process for different type of WCQE and dispatch */
13559 switch (bf_get(lpfc_cqe_code, &cqevt)) {
13560 case CQE_CODE_COMPL_WQE:
13561 /* Process the WQ/RQ complete event */
13562 phba->last_completion_time = jiffies;
13563 workposted = lpfc_sli4_sp_handle_els_wcqe(phba, cq,
13564 (struct lpfc_wcqe_complete *)&cqevt);
13566 case CQE_CODE_RELEASE_WQE:
13567 /* Process the WQ release event */
13568 lpfc_sli4_sp_handle_rel_wcqe(phba,
13569 (struct lpfc_wcqe_release *)&cqevt);
13571 case CQE_CODE_XRI_ABORTED:
13572 /* Process the WQ XRI abort event */
13573 phba->last_completion_time = jiffies;
13574 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
13575 (struct sli4_wcqe_xri_aborted *)&cqevt);
13577 case CQE_CODE_RECEIVE:
13578 case CQE_CODE_RECEIVE_V1:
13579 /* Process the RQ event */
13580 phba->last_completion_time = jiffies;
13581 workposted = lpfc_sli4_sp_handle_rcqe(phba,
13582 (struct lpfc_rcqe *)&cqevt);
13585 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13586 "0388 Not a valid WCQE code: x%x\n",
13587 bf_get(lpfc_cqe_code, &cqevt));
13594 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
13595 * @phba: Pointer to HBA context object.
13596 * @eqe: Pointer to fast-path event queue entry.
13598 * This routine process a event queue entry from the slow-path event queue.
13599 * It will check the MajorCode and MinorCode to determine this is for a
13600 * completion event on a completion queue, if not, an error shall be logged
13601 * and just return. Otherwise, it will get to the corresponding completion
13602 * queue and process all the entries on that completion queue, rearm the
13603 * completion queue, and then return.
13607 lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
13608 struct lpfc_queue *speq)
13610 struct lpfc_queue *cq = NULL, *childq;
13613 /* Get the reference to the corresponding CQ */
13614 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
13616 list_for_each_entry(childq, &speq->child_list, list) {
13617 if (childq->queue_id == cqid) {
13622 if (unlikely(!cq)) {
13623 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
13624 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13625 "0365 Slow-path CQ identifier "
13626 "(%d) does not exist\n", cqid);
13630 /* Save EQ associated with this CQ */
13631 cq->assoc_qp = speq;
13633 if (!queue_work_on(cq->chann, phba->wq, &cq->spwork))
13634 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13635 "0390 Cannot schedule soft IRQ "
13636 "for CQ eqcqid=%d, cqid=%d on CPU %d\n",
13637 cqid, cq->queue_id, raw_smp_processor_id());
13641 * __lpfc_sli4_process_cq - Process elements of a CQ
13642 * @phba: Pointer to HBA context object.
13643 * @cq: Pointer to CQ to be processed
13644 * @handler: Routine to process each cqe
13645 * @delay: Pointer to usdelay to set in case of rescheduling of the handler
13647 * This routine processes completion queue entries in a CQ. While a valid
13648 * queue element is found, the handler is called. During processing checks
13649 * are made for periodic doorbell writes to let the hardware know of
13650 * element consumption.
13652 * If the max limit on cqes to process is hit, or there are no more valid
13653 * entries, the loop stops. If we processed a sufficient number of elements,
13654 * meaning there is sufficient load, rather than rearming and generating
13655 * another interrupt, a cq rescheduling delay will be set. A delay of 0
13656 * indicates no rescheduling.
13658 * Returns True if work scheduled, False otherwise.
13661 __lpfc_sli4_process_cq(struct lpfc_hba *phba, struct lpfc_queue *cq,
13662 bool (*handler)(struct lpfc_hba *, struct lpfc_queue *,
13663 struct lpfc_cqe *), unsigned long *delay)
13665 struct lpfc_cqe *cqe;
13666 bool workposted = false;
13667 int count = 0, consumed = 0;
13670 /* default - no reschedule */
13673 if (cmpxchg(&cq->queue_claimed, 0, 1) != 0)
13674 goto rearm_and_exit;
13676 /* Process all the entries to the CQ */
13678 cqe = lpfc_sli4_cq_get(cq);
13680 workposted |= handler(phba, cq, cqe);
13681 __lpfc_sli4_consume_cqe(phba, cq, cqe);
13684 if (!(++count % cq->max_proc_limit))
13687 if (!(count % cq->notify_interval)) {
13688 phba->sli4_hba.sli4_write_cq_db(phba, cq, consumed,
13691 cq->assoc_qp->q_flag |= HBA_EQ_DELAY_CHK;
13694 if (count == LPFC_NVMET_CQ_NOTIFY)
13695 cq->q_flag |= HBA_NVMET_CQ_NOTIFY;
13697 cqe = lpfc_sli4_cq_get(cq);
13699 if (count >= phba->cfg_cq_poll_threshold) {
13704 /* Track the max number of CQEs processed in 1 EQ */
13705 if (count > cq->CQ_max_cqe)
13706 cq->CQ_max_cqe = count;
13708 cq->assoc_qp->EQ_cqe_cnt += count;
13710 /* Catch the no cq entry condition */
13711 if (unlikely(count == 0))
13712 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
13713 "0369 No entry from completion queue "
13714 "qid=%d\n", cq->queue_id);
13716 cq->queue_claimed = 0;
13719 phba->sli4_hba.sli4_write_cq_db(phba, cq, consumed,
13720 arm ? LPFC_QUEUE_REARM : LPFC_QUEUE_NOARM);
13726 * lpfc_sli4_sp_process_cq - Process a slow-path event queue entry
13727 * @cq: pointer to CQ to process
13729 * This routine calls the cq processing routine with a handler specific
13730 * to the type of queue bound to it.
13732 * The CQ routine returns two values: the first is the calling status,
13733 * which indicates whether work was queued to the background discovery
13734 * thread. If true, the routine should wakeup the discovery thread;
13735 * the second is the delay parameter. If non-zero, rather than rearming
13736 * the CQ and yet another interrupt, the CQ handler should be queued so
13737 * that it is processed in a subsequent polling action. The value of
13738 * the delay indicates when to reschedule it.
13741 __lpfc_sli4_sp_process_cq(struct lpfc_queue *cq)
13743 struct lpfc_hba *phba = cq->phba;
13744 unsigned long delay;
13745 bool workposted = false;
13747 /* Process and rearm the CQ */
13748 switch (cq->type) {
13750 workposted |= __lpfc_sli4_process_cq(phba, cq,
13751 lpfc_sli4_sp_handle_mcqe,
13755 if (cq->subtype == LPFC_IO)
13756 workposted |= __lpfc_sli4_process_cq(phba, cq,
13757 lpfc_sli4_fp_handle_cqe,
13760 workposted |= __lpfc_sli4_process_cq(phba, cq,
13761 lpfc_sli4_sp_handle_cqe,
13765 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13766 "0370 Invalid completion queue type (%d)\n",
13772 if (!queue_delayed_work_on(cq->chann, phba->wq,
13773 &cq->sched_spwork, delay))
13774 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13775 "0394 Cannot schedule soft IRQ "
13776 "for cqid=%d on CPU %d\n",
13777 cq->queue_id, cq->chann);
13780 /* wake up worker thread if there are works to be done */
13782 lpfc_worker_wake_up(phba);
13786 * lpfc_sli4_sp_process_cq - slow-path work handler when started by
13788 * @work: pointer to work element
13790 * translates from the work handler and calls the slow-path handler.
13793 lpfc_sli4_sp_process_cq(struct work_struct *work)
13795 struct lpfc_queue *cq = container_of(work, struct lpfc_queue, spwork);
13797 __lpfc_sli4_sp_process_cq(cq);
13801 * lpfc_sli4_dly_sp_process_cq - slow-path work handler when started by timer
13802 * @work: pointer to work element
13804 * translates from the work handler and calls the slow-path handler.
13807 lpfc_sli4_dly_sp_process_cq(struct work_struct *work)
13809 struct lpfc_queue *cq = container_of(to_delayed_work(work),
13810 struct lpfc_queue, sched_spwork);
13812 __lpfc_sli4_sp_process_cq(cq);
13816 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
13817 * @phba: Pointer to HBA context object.
13818 * @cq: Pointer to associated CQ
13819 * @wcqe: Pointer to work-queue completion queue entry.
13821 * This routine process a fast-path work queue completion entry from fast-path
13822 * event queue for FCP command response completion.
13825 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13826 struct lpfc_wcqe_complete *wcqe)
13828 struct lpfc_sli_ring *pring = cq->pring;
13829 struct lpfc_iocbq *cmdiocbq;
13830 struct lpfc_iocbq irspiocbq;
13831 unsigned long iflags;
13833 /* Check for response status */
13834 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
13835 /* If resource errors reported from HBA, reduce queue
13836 * depth of the SCSI device.
13838 if (((bf_get(lpfc_wcqe_c_status, wcqe) ==
13839 IOSTAT_LOCAL_REJECT)) &&
13840 ((wcqe->parameter & IOERR_PARAM_MASK) ==
13841 IOERR_NO_RESOURCES))
13842 phba->lpfc_rampdown_queue_depth(phba);
13844 /* Log the error status */
13845 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
13846 "0373 FCP CQE error: status=x%x: "
13847 "CQE: %08x %08x %08x %08x\n",
13848 bf_get(lpfc_wcqe_c_status, wcqe),
13849 wcqe->word0, wcqe->total_data_placed,
13850 wcqe->parameter, wcqe->word3);
13853 /* Look up the FCP command IOCB and create pseudo response IOCB */
13854 spin_lock_irqsave(&pring->ring_lock, iflags);
13855 pring->stats.iocb_event++;
13856 spin_unlock_irqrestore(&pring->ring_lock, iflags);
13857 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
13858 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13859 if (unlikely(!cmdiocbq)) {
13860 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13861 "0374 FCP complete with no corresponding "
13862 "cmdiocb: iotag (%d)\n",
13863 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13866 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
13867 cmdiocbq->isr_timestamp = cq->isr_timestamp;
13869 if (cmdiocbq->iocb_cmpl == NULL) {
13870 if (cmdiocbq->wqe_cmpl) {
13871 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
13872 spin_lock_irqsave(&phba->hbalock, iflags);
13873 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
13874 spin_unlock_irqrestore(&phba->hbalock, iflags);
13877 /* Pass the cmd_iocb and the wcqe to the upper layer */
13878 (cmdiocbq->wqe_cmpl)(phba, cmdiocbq, wcqe);
13881 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13882 "0375 FCP cmdiocb not callback function "
13884 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13888 /* Fake the irspiocb and copy necessary response information */
13889 lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
13891 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
13892 spin_lock_irqsave(&phba->hbalock, iflags);
13893 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
13894 spin_unlock_irqrestore(&phba->hbalock, iflags);
13897 /* Pass the cmd_iocb and the rsp state to the upper layer */
13898 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
13902 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
13903 * @phba: Pointer to HBA context object.
13904 * @cq: Pointer to completion queue.
13905 * @wcqe: Pointer to work-queue completion queue entry.
13907 * This routine handles an fast-path WQ entry consumed event by invoking the
13908 * proper WQ release routine to the slow-path WQ.
13911 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13912 struct lpfc_wcqe_release *wcqe)
13914 struct lpfc_queue *childwq;
13915 bool wqid_matched = false;
13918 /* Check for fast-path FCP work queue release */
13919 hba_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
13920 list_for_each_entry(childwq, &cq->child_list, list) {
13921 if (childwq->queue_id == hba_wqid) {
13922 lpfc_sli4_wq_release(childwq,
13923 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
13924 if (childwq->q_flag & HBA_NVMET_WQFULL)
13925 lpfc_nvmet_wqfull_process(phba, childwq);
13926 wqid_matched = true;
13930 /* Report warning log message if no match found */
13931 if (wqid_matched != true)
13932 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13933 "2580 Fast-path wqe consume event carries "
13934 "miss-matched qid: wcqe-qid=x%x\n", hba_wqid);
13938 * lpfc_sli4_nvmet_handle_rcqe - Process a receive-queue completion queue entry
13939 * @phba: Pointer to HBA context object.
13940 * @rcqe: Pointer to receive-queue completion queue entry.
13942 * This routine process a receive-queue completion queue entry.
13944 * Return: true if work posted to worker thread, otherwise false.
13947 lpfc_sli4_nvmet_handle_rcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13948 struct lpfc_rcqe *rcqe)
13950 bool workposted = false;
13951 struct lpfc_queue *hrq;
13952 struct lpfc_queue *drq;
13953 struct rqb_dmabuf *dma_buf;
13954 struct fc_frame_header *fc_hdr;
13955 struct lpfc_nvmet_tgtport *tgtp;
13956 uint32_t status, rq_id;
13957 unsigned long iflags;
13958 uint32_t fctl, idx;
13960 if ((phba->nvmet_support == 0) ||
13961 (phba->sli4_hba.nvmet_cqset == NULL))
13964 idx = cq->queue_id - phba->sli4_hba.nvmet_cqset[0]->queue_id;
13965 hrq = phba->sli4_hba.nvmet_mrq_hdr[idx];
13966 drq = phba->sli4_hba.nvmet_mrq_data[idx];
13968 /* sanity check on queue memory */
13969 if (unlikely(!hrq) || unlikely(!drq))
13972 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
13973 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
13975 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
13977 if ((phba->nvmet_support == 0) ||
13978 (rq_id != hrq->queue_id))
13981 status = bf_get(lpfc_rcqe_status, rcqe);
13983 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
13984 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13985 "6126 Receive Frame Truncated!!\n");
13987 case FC_STATUS_RQ_SUCCESS:
13988 spin_lock_irqsave(&phba->hbalock, iflags);
13989 lpfc_sli4_rq_release(hrq, drq);
13990 dma_buf = lpfc_sli_rqbuf_get(phba, hrq);
13992 hrq->RQ_no_buf_found++;
13993 spin_unlock_irqrestore(&phba->hbalock, iflags);
13996 spin_unlock_irqrestore(&phba->hbalock, iflags);
13998 hrq->RQ_buf_posted--;
13999 fc_hdr = (struct fc_frame_header *)dma_buf->hbuf.virt;
14001 /* Just some basic sanity checks on FCP Command frame */
14002 fctl = (fc_hdr->fh_f_ctl[0] << 16 |
14003 fc_hdr->fh_f_ctl[1] << 8 |
14004 fc_hdr->fh_f_ctl[2]);
14006 (FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT)) !=
14007 (FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT)) ||
14008 (fc_hdr->fh_seq_cnt != 0)) /* 0 byte swapped is still 0 */
14011 if (fc_hdr->fh_type == FC_TYPE_FCP) {
14012 dma_buf->bytes_recv = bf_get(lpfc_rcqe_length, rcqe);
14013 lpfc_nvmet_unsol_fcp_event(
14014 phba, idx, dma_buf, cq->isr_timestamp,
14015 cq->q_flag & HBA_NVMET_CQ_NOTIFY);
14019 lpfc_rq_buf_free(phba, &dma_buf->hbuf);
14021 case FC_STATUS_INSUFF_BUF_FRM_DISC:
14022 if (phba->nvmet_support) {
14023 tgtp = phba->targetport->private;
14024 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_NVME,
14025 "6401 RQE Error x%x, posted %d err_cnt "
14027 status, hrq->RQ_buf_posted,
14028 hrq->RQ_no_posted_buf,
14029 atomic_read(&tgtp->rcv_fcp_cmd_in),
14030 atomic_read(&tgtp->rcv_fcp_cmd_out),
14031 atomic_read(&tgtp->xmt_fcp_release));
14035 case FC_STATUS_INSUFF_BUF_NEED_BUF:
14036 hrq->RQ_no_posted_buf++;
14037 /* Post more buffers if possible */
14045 * lpfc_sli4_fp_handle_cqe - Process fast-path work queue completion entry
14046 * @phba: adapter with cq
14047 * @cq: Pointer to the completion queue.
14048 * @eqe: Pointer to fast-path completion queue entry.
14050 * This routine process a fast-path work queue completion entry from fast-path
14051 * event queue for FCP command response completion.
14053 * Return: true if work posted to worker thread, otherwise false.
14056 lpfc_sli4_fp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
14057 struct lpfc_cqe *cqe)
14059 struct lpfc_wcqe_release wcqe;
14060 bool workposted = false;
14062 /* Copy the work queue CQE and convert endian order if needed */
14063 lpfc_sli4_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
14065 /* Check and process for different type of WCQE and dispatch */
14066 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
14067 case CQE_CODE_COMPL_WQE:
14068 case CQE_CODE_NVME_ERSP:
14070 /* Process the WQ complete event */
14071 phba->last_completion_time = jiffies;
14072 if (cq->subtype == LPFC_IO || cq->subtype == LPFC_NVME_LS)
14073 lpfc_sli4_fp_handle_fcp_wcqe(phba, cq,
14074 (struct lpfc_wcqe_complete *)&wcqe);
14076 case CQE_CODE_RELEASE_WQE:
14077 cq->CQ_release_wqe++;
14078 /* Process the WQ release event */
14079 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
14080 (struct lpfc_wcqe_release *)&wcqe);
14082 case CQE_CODE_XRI_ABORTED:
14083 cq->CQ_xri_aborted++;
14084 /* Process the WQ XRI abort event */
14085 phba->last_completion_time = jiffies;
14086 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
14087 (struct sli4_wcqe_xri_aborted *)&wcqe);
14089 case CQE_CODE_RECEIVE_V1:
14090 case CQE_CODE_RECEIVE:
14091 phba->last_completion_time = jiffies;
14092 if (cq->subtype == LPFC_NVMET) {
14093 workposted = lpfc_sli4_nvmet_handle_rcqe(
14094 phba, cq, (struct lpfc_rcqe *)&wcqe);
14098 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14099 "0144 Not a valid CQE code: x%x\n",
14100 bf_get(lpfc_wcqe_c_code, &wcqe));
14107 * lpfc_sli4_hba_handle_eqe - Process a fast-path event queue entry
14108 * @phba: Pointer to HBA context object.
14109 * @eqe: Pointer to fast-path event queue entry.
14111 * This routine process a event queue entry from the fast-path event queue.
14112 * It will check the MajorCode and MinorCode to determine this is for a
14113 * completion event on a completion queue, if not, an error shall be logged
14114 * and just return. Otherwise, it will get to the corresponding completion
14115 * queue and process all the entries on the completion queue, rearm the
14116 * completion queue, and then return.
14119 lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba, struct lpfc_queue *eq,
14120 struct lpfc_eqe *eqe)
14122 struct lpfc_queue *cq = NULL;
14123 uint32_t qidx = eq->hdwq;
14126 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
14127 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14128 "0366 Not a valid completion "
14129 "event: majorcode=x%x, minorcode=x%x\n",
14130 bf_get_le32(lpfc_eqe_major_code, eqe),
14131 bf_get_le32(lpfc_eqe_minor_code, eqe));
14135 /* Get the reference to the corresponding CQ */
14136 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
14138 /* Use the fast lookup method first */
14139 if (cqid <= phba->sli4_hba.cq_max) {
14140 cq = phba->sli4_hba.cq_lookup[cqid];
14145 /* Next check for NVMET completion */
14146 if (phba->cfg_nvmet_mrq && phba->sli4_hba.nvmet_cqset) {
14147 id = phba->sli4_hba.nvmet_cqset[0]->queue_id;
14148 if ((cqid >= id) && (cqid < (id + phba->cfg_nvmet_mrq))) {
14149 /* Process NVMET unsol rcv */
14150 cq = phba->sli4_hba.nvmet_cqset[cqid - id];
14155 if (phba->sli4_hba.nvmels_cq &&
14156 (cqid == phba->sli4_hba.nvmels_cq->queue_id)) {
14157 /* Process NVME unsol rcv */
14158 cq = phba->sli4_hba.nvmels_cq;
14161 /* Otherwise this is a Slow path event */
14163 lpfc_sli4_sp_handle_eqe(phba, eqe,
14164 phba->sli4_hba.hdwq[qidx].hba_eq);
14169 if (unlikely(cqid != cq->queue_id)) {
14170 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14171 "0368 Miss-matched fast-path completion "
14172 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
14173 cqid, cq->queue_id);
14178 #if defined(CONFIG_SCSI_LPFC_DEBUG_FS)
14179 if (phba->ktime_on)
14180 cq->isr_timestamp = ktime_get_ns();
14182 cq->isr_timestamp = 0;
14184 if (!queue_work_on(cq->chann, phba->wq, &cq->irqwork))
14185 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14186 "0363 Cannot schedule soft IRQ "
14187 "for CQ eqcqid=%d, cqid=%d on CPU %d\n",
14188 cqid, cq->queue_id, raw_smp_processor_id());
14192 * __lpfc_sli4_hba_process_cq - Process a fast-path event queue entry
14193 * @cq: Pointer to CQ to be processed
14195 * This routine calls the cq processing routine with the handler for
14198 * The CQ routine returns two values: the first is the calling status,
14199 * which indicates whether work was queued to the background discovery
14200 * thread. If true, the routine should wakeup the discovery thread;
14201 * the second is the delay parameter. If non-zero, rather than rearming
14202 * the CQ and yet another interrupt, the CQ handler should be queued so
14203 * that it is processed in a subsequent polling action. The value of
14204 * the delay indicates when to reschedule it.
14207 __lpfc_sli4_hba_process_cq(struct lpfc_queue *cq)
14209 struct lpfc_hba *phba = cq->phba;
14210 unsigned long delay;
14211 bool workposted = false;
14213 /* process and rearm the CQ */
14214 workposted |= __lpfc_sli4_process_cq(phba, cq, lpfc_sli4_fp_handle_cqe,
14218 if (!queue_delayed_work_on(cq->chann, phba->wq,
14219 &cq->sched_irqwork, delay))
14220 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14221 "0367 Cannot schedule soft IRQ "
14222 "for cqid=%d on CPU %d\n",
14223 cq->queue_id, cq->chann);
14226 /* wake up worker thread if there are works to be done */
14228 lpfc_worker_wake_up(phba);
14232 * lpfc_sli4_hba_process_cq - fast-path work handler when started by
14234 * @work: pointer to work element
14236 * translates from the work handler and calls the fast-path handler.
14239 lpfc_sli4_hba_process_cq(struct work_struct *work)
14241 struct lpfc_queue *cq = container_of(work, struct lpfc_queue, irqwork);
14243 __lpfc_sli4_hba_process_cq(cq);
14247 * lpfc_sli4_hba_process_cq - fast-path work handler when started by timer
14248 * @work: pointer to work element
14250 * translates from the work handler and calls the fast-path handler.
14253 lpfc_sli4_dly_hba_process_cq(struct work_struct *work)
14255 struct lpfc_queue *cq = container_of(to_delayed_work(work),
14256 struct lpfc_queue, sched_irqwork);
14258 __lpfc_sli4_hba_process_cq(cq);
14262 * lpfc_sli4_hba_intr_handler - HBA interrupt handler to SLI-4 device
14263 * @irq: Interrupt number.
14264 * @dev_id: The device context pointer.
14266 * This function is directly called from the PCI layer as an interrupt
14267 * service routine when device with SLI-4 interface spec is enabled with
14268 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
14269 * ring event in the HBA. However, when the device is enabled with either
14270 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
14271 * device-level interrupt handler. When the PCI slot is in error recovery
14272 * or the HBA is undergoing initialization, the interrupt handler will not
14273 * process the interrupt. The SCSI FCP fast-path ring event are handled in
14274 * the intrrupt context. This function is called without any lock held.
14275 * It gets the hbalock to access and update SLI data structures. Note that,
14276 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
14277 * equal to that of FCP CQ index.
14279 * The link attention and ELS ring attention events are handled
14280 * by the worker thread. The interrupt handler signals the worker thread
14281 * and returns for these events. This function is called without any lock
14282 * held. It gets the hbalock to access and update SLI data structures.
14284 * This function returns IRQ_HANDLED when interrupt is handled else it
14285 * returns IRQ_NONE.
14288 lpfc_sli4_hba_intr_handler(int irq, void *dev_id)
14290 struct lpfc_hba *phba;
14291 struct lpfc_hba_eq_hdl *hba_eq_hdl;
14292 struct lpfc_queue *fpeq;
14293 unsigned long iflag;
14296 struct lpfc_eq_intr_info *eqi;
14299 /* Get the driver's phba structure from the dev_id */
14300 hba_eq_hdl = (struct lpfc_hba_eq_hdl *)dev_id;
14301 phba = hba_eq_hdl->phba;
14302 hba_eqidx = hba_eq_hdl->idx;
14304 if (unlikely(!phba))
14306 if (unlikely(!phba->sli4_hba.hdwq))
14309 /* Get to the EQ struct associated with this vector */
14310 fpeq = phba->sli4_hba.hba_eq_hdl[hba_eqidx].eq;
14311 if (unlikely(!fpeq))
14314 /* Check device state for handling interrupt */
14315 if (unlikely(lpfc_intr_state_check(phba))) {
14316 /* Check again for link_state with lock held */
14317 spin_lock_irqsave(&phba->hbalock, iflag);
14318 if (phba->link_state < LPFC_LINK_DOWN)
14319 /* Flush, clear interrupt, and rearm the EQ */
14320 lpfc_sli4_eqcq_flush(phba, fpeq);
14321 spin_unlock_irqrestore(&phba->hbalock, iflag);
14325 eqi = phba->sli4_hba.eq_info;
14326 icnt = this_cpu_inc_return(eqi->icnt);
14327 fpeq->last_cpu = raw_smp_processor_id();
14329 if (icnt > LPFC_EQD_ISR_TRIGGER &&
14330 fpeq->q_flag & HBA_EQ_DELAY_CHK &&
14331 phba->cfg_auto_imax &&
14332 fpeq->q_mode != LPFC_MAX_AUTO_EQ_DELAY &&
14333 phba->sli.sli_flag & LPFC_SLI_USE_EQDR)
14334 lpfc_sli4_mod_hba_eq_delay(phba, fpeq, LPFC_MAX_AUTO_EQ_DELAY);
14336 /* process and rearm the EQ */
14337 ecount = lpfc_sli4_process_eq(phba, fpeq, LPFC_QUEUE_REARM);
14339 if (unlikely(ecount == 0)) {
14340 fpeq->EQ_no_entry++;
14341 if (phba->intr_type == MSIX)
14342 /* MSI-X treated interrupt served as no EQ share INT */
14343 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
14344 "0358 MSI-X interrupt with no EQE\n");
14346 /* Non MSI-X treated on interrupt as EQ share INT */
14350 return IRQ_HANDLED;
14351 } /* lpfc_sli4_fp_intr_handler */
14354 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
14355 * @irq: Interrupt number.
14356 * @dev_id: The device context pointer.
14358 * This function is the device-level interrupt handler to device with SLI-4
14359 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
14360 * interrupt mode is enabled and there is an event in the HBA which requires
14361 * driver attention. This function invokes the slow-path interrupt attention
14362 * handling function and fast-path interrupt attention handling function in
14363 * turn to process the relevant HBA attention events. This function is called
14364 * without any lock held. It gets the hbalock to access and update SLI data
14367 * This function returns IRQ_HANDLED when interrupt is handled, else it
14368 * returns IRQ_NONE.
14371 lpfc_sli4_intr_handler(int irq, void *dev_id)
14373 struct lpfc_hba *phba;
14374 irqreturn_t hba_irq_rc;
14375 bool hba_handled = false;
14378 /* Get the driver's phba structure from the dev_id */
14379 phba = (struct lpfc_hba *)dev_id;
14381 if (unlikely(!phba))
14385 * Invoke fast-path host attention interrupt handling as appropriate.
14387 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
14388 hba_irq_rc = lpfc_sli4_hba_intr_handler(irq,
14389 &phba->sli4_hba.hba_eq_hdl[qidx]);
14390 if (hba_irq_rc == IRQ_HANDLED)
14391 hba_handled |= true;
14394 return (hba_handled == true) ? IRQ_HANDLED : IRQ_NONE;
14395 } /* lpfc_sli4_intr_handler */
14397 void lpfc_sli4_poll_hbtimer(struct timer_list *t)
14399 struct lpfc_hba *phba = from_timer(phba, t, cpuhp_poll_timer);
14400 struct lpfc_queue *eq;
14405 list_for_each_entry_rcu(eq, &phba->poll_list, _poll_list)
14406 i += lpfc_sli4_poll_eq(eq, LPFC_POLL_SLOWPATH);
14407 if (!list_empty(&phba->poll_list))
14408 mod_timer(&phba->cpuhp_poll_timer,
14409 jiffies + msecs_to_jiffies(LPFC_POLL_HB));
14414 inline int lpfc_sli4_poll_eq(struct lpfc_queue *eq, uint8_t path)
14416 struct lpfc_hba *phba = eq->phba;
14420 * Unlocking an irq is one of the entry point to check
14421 * for re-schedule, but we are good for io submission
14422 * path as midlayer does a get_cpu to glue us in. Flush
14423 * out the invalidate queue so we can see the updated
14428 if (READ_ONCE(eq->mode) == LPFC_EQ_POLL)
14429 /* We will not likely get the completion for the caller
14430 * during this iteration but i guess that's fine.
14431 * Future io's coming on this eq should be able to
14432 * pick it up. As for the case of single io's, they
14433 * will be handled through a sched from polling timer
14434 * function which is currently triggered every 1msec.
14436 i = lpfc_sli4_process_eq(phba, eq, LPFC_QUEUE_NOARM);
14441 static inline void lpfc_sli4_add_to_poll_list(struct lpfc_queue *eq)
14443 struct lpfc_hba *phba = eq->phba;
14445 if (list_empty(&phba->poll_list)) {
14446 timer_setup(&phba->cpuhp_poll_timer, lpfc_sli4_poll_hbtimer, 0);
14447 /* kickstart slowpath processing for this eq */
14448 mod_timer(&phba->cpuhp_poll_timer,
14449 jiffies + msecs_to_jiffies(LPFC_POLL_HB));
14452 list_add_rcu(&eq->_poll_list, &phba->poll_list);
14456 static inline void lpfc_sli4_remove_from_poll_list(struct lpfc_queue *eq)
14458 struct lpfc_hba *phba = eq->phba;
14460 /* Disable slowpath processing for this eq. Kick start the eq
14461 * by RE-ARMING the eq's ASAP
14463 list_del_rcu(&eq->_poll_list);
14466 if (list_empty(&phba->poll_list))
14467 del_timer_sync(&phba->cpuhp_poll_timer);
14470 void lpfc_sli4_cleanup_poll_list(struct lpfc_hba *phba)
14472 struct lpfc_queue *eq, *next;
14474 list_for_each_entry_safe(eq, next, &phba->poll_list, _poll_list)
14475 list_del(&eq->_poll_list);
14477 INIT_LIST_HEAD(&phba->poll_list);
14482 __lpfc_sli4_switch_eqmode(struct lpfc_queue *eq, uint8_t mode)
14484 if (mode == eq->mode)
14487 * currently this function is only called during a hotplug
14488 * event and the cpu on which this function is executing
14489 * is going offline. By now the hotplug has instructed
14490 * the scheduler to remove this cpu from cpu active mask.
14491 * So we don't need to work about being put aside by the
14492 * scheduler for a high priority process. Yes, the inte-
14493 * rrupts could come but they are known to retire ASAP.
14496 /* Disable polling in the fastpath */
14497 WRITE_ONCE(eq->mode, mode);
14498 /* flush out the store buffer */
14502 * Add this eq to the polling list and start polling. For
14503 * a grace period both interrupt handler and poller will
14504 * try to process the eq _but_ that's fine. We have a
14505 * synchronization mechanism in place (queue_claimed) to
14506 * deal with it. This is just a draining phase for int-
14507 * errupt handler (not eq's) as we have guranteed through
14508 * barrier that all the CPUs have seen the new CQ_POLLED
14509 * state. which will effectively disable the REARMING of
14510 * the EQ. The whole idea is eq's die off eventually as
14511 * we are not rearming EQ's anymore.
14513 mode ? lpfc_sli4_add_to_poll_list(eq) :
14514 lpfc_sli4_remove_from_poll_list(eq);
14517 void lpfc_sli4_start_polling(struct lpfc_queue *eq)
14519 __lpfc_sli4_switch_eqmode(eq, LPFC_EQ_POLL);
14522 void lpfc_sli4_stop_polling(struct lpfc_queue *eq)
14524 struct lpfc_hba *phba = eq->phba;
14526 __lpfc_sli4_switch_eqmode(eq, LPFC_EQ_INTERRUPT);
14528 /* Kick start for the pending io's in h/w.
14529 * Once we switch back to interrupt processing on a eq
14530 * the io path completion will only arm eq's when it
14531 * receives a completion. But since eq's are in disa-
14532 * rmed state it doesn't receive a completion. This
14533 * creates a deadlock scenaro.
14535 phba->sli4_hba.sli4_write_eq_db(phba, eq, 0, LPFC_QUEUE_REARM);
14539 * lpfc_sli4_queue_free - free a queue structure and associated memory
14540 * @queue: The queue structure to free.
14542 * This function frees a queue structure and the DMAable memory used for
14543 * the host resident queue. This function must be called after destroying the
14544 * queue on the HBA.
14547 lpfc_sli4_queue_free(struct lpfc_queue *queue)
14549 struct lpfc_dmabuf *dmabuf;
14554 if (!list_empty(&queue->wq_list))
14555 list_del(&queue->wq_list);
14557 while (!list_empty(&queue->page_list)) {
14558 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
14560 dma_free_coherent(&queue->phba->pcidev->dev, queue->page_size,
14561 dmabuf->virt, dmabuf->phys);
14565 lpfc_free_rq_buffer(queue->phba, queue);
14566 kfree(queue->rqbp);
14569 if (!list_empty(&queue->cpu_list))
14570 list_del(&queue->cpu_list);
14577 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
14578 * @phba: The HBA that this queue is being created on.
14579 * @page_size: The size of a queue page
14580 * @entry_size: The size of each queue entry for this queue.
14581 * @entry count: The number of entries that this queue will handle.
14582 * @cpu: The cpu that will primarily utilize this queue.
14584 * This function allocates a queue structure and the DMAable memory used for
14585 * the host resident queue. This function must be called before creating the
14586 * queue on the HBA.
14588 struct lpfc_queue *
14589 lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t page_size,
14590 uint32_t entry_size, uint32_t entry_count, int cpu)
14592 struct lpfc_queue *queue;
14593 struct lpfc_dmabuf *dmabuf;
14594 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
14597 if (!phba->sli4_hba.pc_sli4_params.supported)
14598 hw_page_size = page_size;
14600 pgcnt = ALIGN(entry_size * entry_count, hw_page_size) / hw_page_size;
14602 /* If needed, Adjust page count to match the max the adapter supports */
14603 if (pgcnt > phba->sli4_hba.pc_sli4_params.wqpcnt)
14604 pgcnt = phba->sli4_hba.pc_sli4_params.wqpcnt;
14606 queue = kzalloc_node(sizeof(*queue) + (sizeof(void *) * pgcnt),
14607 GFP_KERNEL, cpu_to_node(cpu));
14611 INIT_LIST_HEAD(&queue->list);
14612 INIT_LIST_HEAD(&queue->_poll_list);
14613 INIT_LIST_HEAD(&queue->wq_list);
14614 INIT_LIST_HEAD(&queue->wqfull_list);
14615 INIT_LIST_HEAD(&queue->page_list);
14616 INIT_LIST_HEAD(&queue->child_list);
14617 INIT_LIST_HEAD(&queue->cpu_list);
14619 /* Set queue parameters now. If the system cannot provide memory
14620 * resources, the free routine needs to know what was allocated.
14622 queue->page_count = pgcnt;
14623 queue->q_pgs = (void **)&queue[1];
14624 queue->entry_cnt_per_pg = hw_page_size / entry_size;
14625 queue->entry_size = entry_size;
14626 queue->entry_count = entry_count;
14627 queue->page_size = hw_page_size;
14628 queue->phba = phba;
14630 for (x = 0; x < queue->page_count; x++) {
14631 dmabuf = kzalloc_node(sizeof(*dmabuf), GFP_KERNEL,
14632 dev_to_node(&phba->pcidev->dev));
14635 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
14636 hw_page_size, &dmabuf->phys,
14638 if (!dmabuf->virt) {
14642 dmabuf->buffer_tag = x;
14643 list_add_tail(&dmabuf->list, &queue->page_list);
14644 /* use lpfc_sli4_qe to index a paritcular entry in this page */
14645 queue->q_pgs[x] = dmabuf->virt;
14647 INIT_WORK(&queue->irqwork, lpfc_sli4_hba_process_cq);
14648 INIT_WORK(&queue->spwork, lpfc_sli4_sp_process_cq);
14649 INIT_DELAYED_WORK(&queue->sched_irqwork, lpfc_sli4_dly_hba_process_cq);
14650 INIT_DELAYED_WORK(&queue->sched_spwork, lpfc_sli4_dly_sp_process_cq);
14652 /* notify_interval will be set during q creation */
14656 lpfc_sli4_queue_free(queue);
14661 * lpfc_dual_chute_pci_bar_map - Map pci base address register to host memory
14662 * @phba: HBA structure that indicates port to create a queue on.
14663 * @pci_barset: PCI BAR set flag.
14665 * This function shall perform iomap of the specified PCI BAR address to host
14666 * memory address if not already done so and return it. The returned host
14667 * memory address can be NULL.
14669 static void __iomem *
14670 lpfc_dual_chute_pci_bar_map(struct lpfc_hba *phba, uint16_t pci_barset)
14675 switch (pci_barset) {
14676 case WQ_PCI_BAR_0_AND_1:
14677 return phba->pci_bar0_memmap_p;
14678 case WQ_PCI_BAR_2_AND_3:
14679 return phba->pci_bar2_memmap_p;
14680 case WQ_PCI_BAR_4_AND_5:
14681 return phba->pci_bar4_memmap_p;
14689 * lpfc_modify_hba_eq_delay - Modify Delay Multiplier on EQs
14690 * @phba: HBA structure that EQs are on.
14691 * @startq: The starting EQ index to modify
14692 * @numq: The number of EQs (consecutive indexes) to modify
14693 * @usdelay: amount of delay
14695 * This function revises the EQ delay on 1 or more EQs. The EQ delay
14696 * is set either by writing to a register (if supported by the SLI Port)
14697 * or by mailbox command. The mailbox command allows several EQs to be
14700 * The @phba struct is used to send a mailbox command to HBA. The @startq
14701 * is used to get the starting EQ index to change. The @numq value is
14702 * used to specify how many consecutive EQ indexes, starting at EQ index,
14703 * are to be changed. This function is asynchronous and will wait for any
14704 * mailbox commands to finish before returning.
14706 * On success this function will return a zero. If unable to allocate
14707 * enough memory this function will return -ENOMEM. If a mailbox command
14708 * fails this function will return -ENXIO. Note: on ENXIO, some EQs may
14709 * have had their delay multipler changed.
14712 lpfc_modify_hba_eq_delay(struct lpfc_hba *phba, uint32_t startq,
14713 uint32_t numq, uint32_t usdelay)
14715 struct lpfc_mbx_modify_eq_delay *eq_delay;
14716 LPFC_MBOXQ_t *mbox;
14717 struct lpfc_queue *eq;
14718 int cnt = 0, rc, length;
14719 uint32_t shdr_status, shdr_add_status;
14722 union lpfc_sli4_cfg_shdr *shdr;
14724 if (startq >= phba->cfg_irq_chann)
14727 if (usdelay > 0xFFFF) {
14728 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP | LOG_NVME,
14729 "6429 usdelay %d too large. Scaled down to "
14730 "0xFFFF.\n", usdelay);
14734 /* set values by EQ_DELAY register if supported */
14735 if (phba->sli.sli_flag & LPFC_SLI_USE_EQDR) {
14736 for (qidx = startq; qidx < phba->cfg_irq_chann; qidx++) {
14737 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
14741 lpfc_sli4_mod_hba_eq_delay(phba, eq, usdelay);
14749 /* Otherwise, set values by mailbox cmd */
14751 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14753 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_FCP | LOG_NVME,
14754 "6428 Failed allocating mailbox cmd buffer."
14755 " EQ delay was not set.\n");
14758 length = (sizeof(struct lpfc_mbx_modify_eq_delay) -
14759 sizeof(struct lpfc_sli4_cfg_mhdr));
14760 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14761 LPFC_MBOX_OPCODE_MODIFY_EQ_DELAY,
14762 length, LPFC_SLI4_MBX_EMBED);
14763 eq_delay = &mbox->u.mqe.un.eq_delay;
14765 /* Calculate delay multiper from maximum interrupt per second */
14766 dmult = (usdelay * LPFC_DMULT_CONST) / LPFC_SEC_TO_USEC;
14769 if (dmult > LPFC_DMULT_MAX)
14770 dmult = LPFC_DMULT_MAX;
14772 for (qidx = startq; qidx < phba->cfg_irq_chann; qidx++) {
14773 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
14776 eq->q_mode = usdelay;
14777 eq_delay->u.request.eq[cnt].eq_id = eq->queue_id;
14778 eq_delay->u.request.eq[cnt].phase = 0;
14779 eq_delay->u.request.eq[cnt].delay_multi = dmult;
14784 eq_delay->u.request.num_eq = cnt;
14786 mbox->vport = phba->pport;
14787 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14788 mbox->ctx_buf = NULL;
14789 mbox->ctx_ndlp = NULL;
14790 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14791 shdr = (union lpfc_sli4_cfg_shdr *) &eq_delay->header.cfg_shdr;
14792 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14793 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14794 if (shdr_status || shdr_add_status || rc) {
14795 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14796 "2512 MODIFY_EQ_DELAY mailbox failed with "
14797 "status x%x add_status x%x, mbx status x%x\n",
14798 shdr_status, shdr_add_status, rc);
14800 mempool_free(mbox, phba->mbox_mem_pool);
14805 * lpfc_eq_create - Create an Event Queue on the HBA
14806 * @phba: HBA structure that indicates port to create a queue on.
14807 * @eq: The queue structure to use to create the event queue.
14808 * @imax: The maximum interrupt per second limit.
14810 * This function creates an event queue, as detailed in @eq, on a port,
14811 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
14813 * The @phba struct is used to send mailbox command to HBA. The @eq struct
14814 * is used to get the entry count and entry size that are necessary to
14815 * determine the number of pages to allocate and use for this queue. This
14816 * function will send the EQ_CREATE mailbox command to the HBA to setup the
14817 * event queue. This function is asynchronous and will wait for the mailbox
14818 * command to finish before continuing.
14820 * On success this function will return a zero. If unable to allocate enough
14821 * memory this function will return -ENOMEM. If the queue create mailbox command
14822 * fails this function will return -ENXIO.
14825 lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint32_t imax)
14827 struct lpfc_mbx_eq_create *eq_create;
14828 LPFC_MBOXQ_t *mbox;
14829 int rc, length, status = 0;
14830 struct lpfc_dmabuf *dmabuf;
14831 uint32_t shdr_status, shdr_add_status;
14832 union lpfc_sli4_cfg_shdr *shdr;
14834 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
14836 /* sanity check on queue memory */
14839 if (!phba->sli4_hba.pc_sli4_params.supported)
14840 hw_page_size = SLI4_PAGE_SIZE;
14842 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14845 length = (sizeof(struct lpfc_mbx_eq_create) -
14846 sizeof(struct lpfc_sli4_cfg_mhdr));
14847 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14848 LPFC_MBOX_OPCODE_EQ_CREATE,
14849 length, LPFC_SLI4_MBX_EMBED);
14850 eq_create = &mbox->u.mqe.un.eq_create;
14851 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
14852 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
14854 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
14856 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
14858 /* Use version 2 of CREATE_EQ if eqav is set */
14859 if (phba->sli4_hba.pc_sli4_params.eqav) {
14860 bf_set(lpfc_mbox_hdr_version, &shdr->request,
14861 LPFC_Q_CREATE_VERSION_2);
14862 bf_set(lpfc_eq_context_autovalid, &eq_create->u.request.context,
14863 phba->sli4_hba.pc_sli4_params.eqav);
14866 /* don't setup delay multiplier using EQ_CREATE */
14868 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
14870 switch (eq->entry_count) {
14872 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14873 "0360 Unsupported EQ count. (%d)\n",
14875 if (eq->entry_count < 256) {
14879 /* fall through - otherwise default to smallest count */
14881 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14885 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14889 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14893 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14897 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14901 list_for_each_entry(dmabuf, &eq->page_list, list) {
14902 memset(dmabuf->virt, 0, hw_page_size);
14903 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
14904 putPaddrLow(dmabuf->phys);
14905 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
14906 putPaddrHigh(dmabuf->phys);
14908 mbox->vport = phba->pport;
14909 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14910 mbox->ctx_buf = NULL;
14911 mbox->ctx_ndlp = NULL;
14912 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14913 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14914 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14915 if (shdr_status || shdr_add_status || rc) {
14916 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14917 "2500 EQ_CREATE mailbox failed with "
14918 "status x%x add_status x%x, mbx status x%x\n",
14919 shdr_status, shdr_add_status, rc);
14922 eq->type = LPFC_EQ;
14923 eq->subtype = LPFC_NONE;
14924 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
14925 if (eq->queue_id == 0xFFFF)
14927 eq->host_index = 0;
14928 eq->notify_interval = LPFC_EQ_NOTIFY_INTRVL;
14929 eq->max_proc_limit = LPFC_EQ_MAX_PROC_LIMIT;
14931 mempool_free(mbox, phba->mbox_mem_pool);
14936 * lpfc_cq_create - Create a Completion Queue on the HBA
14937 * @phba: HBA structure that indicates port to create a queue on.
14938 * @cq: The queue structure to use to create the completion queue.
14939 * @eq: The event queue to bind this completion queue to.
14941 * This function creates a completion queue, as detailed in @wq, on a port,
14942 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
14944 * The @phba struct is used to send mailbox command to HBA. The @cq struct
14945 * is used to get the entry count and entry size that are necessary to
14946 * determine the number of pages to allocate and use for this queue. The @eq
14947 * is used to indicate which event queue to bind this completion queue to. This
14948 * function will send the CQ_CREATE mailbox command to the HBA to setup the
14949 * completion queue. This function is asynchronous and will wait for the mailbox
14950 * command to finish before continuing.
14952 * On success this function will return a zero. If unable to allocate enough
14953 * memory this function will return -ENOMEM. If the queue create mailbox command
14954 * fails this function will return -ENXIO.
14957 lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
14958 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
14960 struct lpfc_mbx_cq_create *cq_create;
14961 struct lpfc_dmabuf *dmabuf;
14962 LPFC_MBOXQ_t *mbox;
14963 int rc, length, status = 0;
14964 uint32_t shdr_status, shdr_add_status;
14965 union lpfc_sli4_cfg_shdr *shdr;
14967 /* sanity check on queue memory */
14971 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14974 length = (sizeof(struct lpfc_mbx_cq_create) -
14975 sizeof(struct lpfc_sli4_cfg_mhdr));
14976 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14977 LPFC_MBOX_OPCODE_CQ_CREATE,
14978 length, LPFC_SLI4_MBX_EMBED);
14979 cq_create = &mbox->u.mqe.un.cq_create;
14980 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
14981 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
14983 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
14984 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
14985 bf_set(lpfc_mbox_hdr_version, &shdr->request,
14986 phba->sli4_hba.pc_sli4_params.cqv);
14987 if (phba->sli4_hba.pc_sli4_params.cqv == LPFC_Q_CREATE_VERSION_2) {
14988 bf_set(lpfc_mbx_cq_create_page_size, &cq_create->u.request,
14989 (cq->page_size / SLI4_PAGE_SIZE));
14990 bf_set(lpfc_cq_eq_id_2, &cq_create->u.request.context,
14992 bf_set(lpfc_cq_context_autovalid, &cq_create->u.request.context,
14993 phba->sli4_hba.pc_sli4_params.cqav);
14995 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context,
14998 switch (cq->entry_count) {
15001 if (phba->sli4_hba.pc_sli4_params.cqv ==
15002 LPFC_Q_CREATE_VERSION_2) {
15003 cq_create->u.request.context.lpfc_cq_context_count =
15005 bf_set(lpfc_cq_context_count,
15006 &cq_create->u.request.context,
15007 LPFC_CQ_CNT_WORD7);
15012 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15013 "0361 Unsupported CQ count: "
15014 "entry cnt %d sz %d pg cnt %d\n",
15015 cq->entry_count, cq->entry_size,
15017 if (cq->entry_count < 256) {
15021 /* fall through - otherwise default to smallest count */
15023 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
15027 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
15031 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
15035 list_for_each_entry(dmabuf, &cq->page_list, list) {
15036 memset(dmabuf->virt, 0, cq->page_size);
15037 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
15038 putPaddrLow(dmabuf->phys);
15039 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
15040 putPaddrHigh(dmabuf->phys);
15042 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15044 /* The IOCTL status is embedded in the mailbox subheader. */
15045 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15046 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15047 if (shdr_status || shdr_add_status || rc) {
15048 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15049 "2501 CQ_CREATE mailbox failed with "
15050 "status x%x add_status x%x, mbx status x%x\n",
15051 shdr_status, shdr_add_status, rc);
15055 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
15056 if (cq->queue_id == 0xFFFF) {
15060 /* link the cq onto the parent eq child list */
15061 list_add_tail(&cq->list, &eq->child_list);
15062 /* Set up completion queue's type and subtype */
15064 cq->subtype = subtype;
15065 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
15066 cq->assoc_qid = eq->queue_id;
15068 cq->host_index = 0;
15069 cq->notify_interval = LPFC_CQ_NOTIFY_INTRVL;
15070 cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit, cq->entry_count);
15072 if (cq->queue_id > phba->sli4_hba.cq_max)
15073 phba->sli4_hba.cq_max = cq->queue_id;
15075 mempool_free(mbox, phba->mbox_mem_pool);
15080 * lpfc_cq_create_set - Create a set of Completion Queues on the HBA for MRQ
15081 * @phba: HBA structure that indicates port to create a queue on.
15082 * @cqp: The queue structure array to use to create the completion queues.
15083 * @hdwq: The hardware queue array with the EQ to bind completion queues to.
15085 * This function creates a set of completion queue, s to support MRQ
15086 * as detailed in @cqp, on a port,
15087 * described by @phba by sending a CREATE_CQ_SET mailbox command to the HBA.
15089 * The @phba struct is used to send mailbox command to HBA. The @cq struct
15090 * is used to get the entry count and entry size that are necessary to
15091 * determine the number of pages to allocate and use for this queue. The @eq
15092 * is used to indicate which event queue to bind this completion queue to. This
15093 * function will send the CREATE_CQ_SET mailbox command to the HBA to setup the
15094 * completion queue. This function is asynchronous and will wait for the mailbox
15095 * command to finish before continuing.
15097 * On success this function will return a zero. If unable to allocate enough
15098 * memory this function will return -ENOMEM. If the queue create mailbox command
15099 * fails this function will return -ENXIO.
15102 lpfc_cq_create_set(struct lpfc_hba *phba, struct lpfc_queue **cqp,
15103 struct lpfc_sli4_hdw_queue *hdwq, uint32_t type,
15106 struct lpfc_queue *cq;
15107 struct lpfc_queue *eq;
15108 struct lpfc_mbx_cq_create_set *cq_set;
15109 struct lpfc_dmabuf *dmabuf;
15110 LPFC_MBOXQ_t *mbox;
15111 int rc, length, alloclen, status = 0;
15112 int cnt, idx, numcq, page_idx = 0;
15113 uint32_t shdr_status, shdr_add_status;
15114 union lpfc_sli4_cfg_shdr *shdr;
15115 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15117 /* sanity check on queue memory */
15118 numcq = phba->cfg_nvmet_mrq;
15119 if (!cqp || !hdwq || !numcq)
15122 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15126 length = sizeof(struct lpfc_mbx_cq_create_set);
15127 length += ((numcq * cqp[0]->page_count) *
15128 sizeof(struct dma_address));
15129 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15130 LPFC_MBOX_OPCODE_FCOE_CQ_CREATE_SET, length,
15131 LPFC_SLI4_MBX_NEMBED);
15132 if (alloclen < length) {
15133 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15134 "3098 Allocated DMA memory size (%d) is "
15135 "less than the requested DMA memory size "
15136 "(%d)\n", alloclen, length);
15140 cq_set = mbox->sge_array->addr[0];
15141 shdr = (union lpfc_sli4_cfg_shdr *)&cq_set->cfg_shdr;
15142 bf_set(lpfc_mbox_hdr_version, &shdr->request, 0);
15144 for (idx = 0; idx < numcq; idx++) {
15146 eq = hdwq[idx].hba_eq;
15151 if (!phba->sli4_hba.pc_sli4_params.supported)
15152 hw_page_size = cq->page_size;
15156 bf_set(lpfc_mbx_cq_create_set_page_size,
15157 &cq_set->u.request,
15158 (hw_page_size / SLI4_PAGE_SIZE));
15159 bf_set(lpfc_mbx_cq_create_set_num_pages,
15160 &cq_set->u.request, cq->page_count);
15161 bf_set(lpfc_mbx_cq_create_set_evt,
15162 &cq_set->u.request, 1);
15163 bf_set(lpfc_mbx_cq_create_set_valid,
15164 &cq_set->u.request, 1);
15165 bf_set(lpfc_mbx_cq_create_set_cqe_size,
15166 &cq_set->u.request, 0);
15167 bf_set(lpfc_mbx_cq_create_set_num_cq,
15168 &cq_set->u.request, numcq);
15169 bf_set(lpfc_mbx_cq_create_set_autovalid,
15170 &cq_set->u.request,
15171 phba->sli4_hba.pc_sli4_params.cqav);
15172 switch (cq->entry_count) {
15175 if (phba->sli4_hba.pc_sli4_params.cqv ==
15176 LPFC_Q_CREATE_VERSION_2) {
15177 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
15178 &cq_set->u.request,
15180 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
15181 &cq_set->u.request,
15182 LPFC_CQ_CNT_WORD7);
15187 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15188 "3118 Bad CQ count. (%d)\n",
15190 if (cq->entry_count < 256) {
15194 /* fall through - otherwise default to smallest */
15196 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
15197 &cq_set->u.request, LPFC_CQ_CNT_256);
15200 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
15201 &cq_set->u.request, LPFC_CQ_CNT_512);
15204 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
15205 &cq_set->u.request, LPFC_CQ_CNT_1024);
15208 bf_set(lpfc_mbx_cq_create_set_eq_id0,
15209 &cq_set->u.request, eq->queue_id);
15212 bf_set(lpfc_mbx_cq_create_set_eq_id1,
15213 &cq_set->u.request, eq->queue_id);
15216 bf_set(lpfc_mbx_cq_create_set_eq_id2,
15217 &cq_set->u.request, eq->queue_id);
15220 bf_set(lpfc_mbx_cq_create_set_eq_id3,
15221 &cq_set->u.request, eq->queue_id);
15224 bf_set(lpfc_mbx_cq_create_set_eq_id4,
15225 &cq_set->u.request, eq->queue_id);
15228 bf_set(lpfc_mbx_cq_create_set_eq_id5,
15229 &cq_set->u.request, eq->queue_id);
15232 bf_set(lpfc_mbx_cq_create_set_eq_id6,
15233 &cq_set->u.request, eq->queue_id);
15236 bf_set(lpfc_mbx_cq_create_set_eq_id7,
15237 &cq_set->u.request, eq->queue_id);
15240 bf_set(lpfc_mbx_cq_create_set_eq_id8,
15241 &cq_set->u.request, eq->queue_id);
15244 bf_set(lpfc_mbx_cq_create_set_eq_id9,
15245 &cq_set->u.request, eq->queue_id);
15248 bf_set(lpfc_mbx_cq_create_set_eq_id10,
15249 &cq_set->u.request, eq->queue_id);
15252 bf_set(lpfc_mbx_cq_create_set_eq_id11,
15253 &cq_set->u.request, eq->queue_id);
15256 bf_set(lpfc_mbx_cq_create_set_eq_id12,
15257 &cq_set->u.request, eq->queue_id);
15260 bf_set(lpfc_mbx_cq_create_set_eq_id13,
15261 &cq_set->u.request, eq->queue_id);
15264 bf_set(lpfc_mbx_cq_create_set_eq_id14,
15265 &cq_set->u.request, eq->queue_id);
15268 bf_set(lpfc_mbx_cq_create_set_eq_id15,
15269 &cq_set->u.request, eq->queue_id);
15273 /* link the cq onto the parent eq child list */
15274 list_add_tail(&cq->list, &eq->child_list);
15275 /* Set up completion queue's type and subtype */
15277 cq->subtype = subtype;
15278 cq->assoc_qid = eq->queue_id;
15280 cq->host_index = 0;
15281 cq->notify_interval = LPFC_CQ_NOTIFY_INTRVL;
15282 cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit,
15287 list_for_each_entry(dmabuf, &cq->page_list, list) {
15288 memset(dmabuf->virt, 0, hw_page_size);
15289 cnt = page_idx + dmabuf->buffer_tag;
15290 cq_set->u.request.page[cnt].addr_lo =
15291 putPaddrLow(dmabuf->phys);
15292 cq_set->u.request.page[cnt].addr_hi =
15293 putPaddrHigh(dmabuf->phys);
15299 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15301 /* The IOCTL status is embedded in the mailbox subheader. */
15302 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15303 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15304 if (shdr_status || shdr_add_status || rc) {
15305 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15306 "3119 CQ_CREATE_SET mailbox failed with "
15307 "status x%x add_status x%x, mbx status x%x\n",
15308 shdr_status, shdr_add_status, rc);
15312 rc = bf_get(lpfc_mbx_cq_create_set_base_id, &cq_set->u.response);
15313 if (rc == 0xFFFF) {
15318 for (idx = 0; idx < numcq; idx++) {
15320 cq->queue_id = rc + idx;
15321 if (cq->queue_id > phba->sli4_hba.cq_max)
15322 phba->sli4_hba.cq_max = cq->queue_id;
15326 lpfc_sli4_mbox_cmd_free(phba, mbox);
15331 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
15332 * @phba: HBA structure that indicates port to create a queue on.
15333 * @mq: The queue structure to use to create the mailbox queue.
15334 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
15335 * @cq: The completion queue to associate with this cq.
15337 * This function provides failback (fb) functionality when the
15338 * mq_create_ext fails on older FW generations. It's purpose is identical
15339 * to mq_create_ext otherwise.
15341 * This routine cannot fail as all attributes were previously accessed and
15342 * initialized in mq_create_ext.
15345 lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq,
15346 LPFC_MBOXQ_t *mbox, struct lpfc_queue *cq)
15348 struct lpfc_mbx_mq_create *mq_create;
15349 struct lpfc_dmabuf *dmabuf;
15352 length = (sizeof(struct lpfc_mbx_mq_create) -
15353 sizeof(struct lpfc_sli4_cfg_mhdr));
15354 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
15355 LPFC_MBOX_OPCODE_MQ_CREATE,
15356 length, LPFC_SLI4_MBX_EMBED);
15357 mq_create = &mbox->u.mqe.un.mq_create;
15358 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
15360 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
15362 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
15363 switch (mq->entry_count) {
15365 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
15366 LPFC_MQ_RING_SIZE_16);
15369 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
15370 LPFC_MQ_RING_SIZE_32);
15373 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
15374 LPFC_MQ_RING_SIZE_64);
15377 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
15378 LPFC_MQ_RING_SIZE_128);
15381 list_for_each_entry(dmabuf, &mq->page_list, list) {
15382 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
15383 putPaddrLow(dmabuf->phys);
15384 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
15385 putPaddrHigh(dmabuf->phys);
15390 * lpfc_mq_create - Create a mailbox Queue on the HBA
15391 * @phba: HBA structure that indicates port to create a queue on.
15392 * @mq: The queue structure to use to create the mailbox queue.
15393 * @cq: The completion queue to associate with this cq.
15394 * @subtype: The queue's subtype.
15396 * This function creates a mailbox queue, as detailed in @mq, on a port,
15397 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
15399 * The @phba struct is used to send mailbox command to HBA. The @cq struct
15400 * is used to get the entry count and entry size that are necessary to
15401 * determine the number of pages to allocate and use for this queue. This
15402 * function will send the MQ_CREATE mailbox command to the HBA to setup the
15403 * mailbox queue. This function is asynchronous and will wait for the mailbox
15404 * command to finish before continuing.
15406 * On success this function will return a zero. If unable to allocate enough
15407 * memory this function will return -ENOMEM. If the queue create mailbox command
15408 * fails this function will return -ENXIO.
15411 lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
15412 struct lpfc_queue *cq, uint32_t subtype)
15414 struct lpfc_mbx_mq_create *mq_create;
15415 struct lpfc_mbx_mq_create_ext *mq_create_ext;
15416 struct lpfc_dmabuf *dmabuf;
15417 LPFC_MBOXQ_t *mbox;
15418 int rc, length, status = 0;
15419 uint32_t shdr_status, shdr_add_status;
15420 union lpfc_sli4_cfg_shdr *shdr;
15421 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15423 /* sanity check on queue memory */
15426 if (!phba->sli4_hba.pc_sli4_params.supported)
15427 hw_page_size = SLI4_PAGE_SIZE;
15429 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15432 length = (sizeof(struct lpfc_mbx_mq_create_ext) -
15433 sizeof(struct lpfc_sli4_cfg_mhdr));
15434 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
15435 LPFC_MBOX_OPCODE_MQ_CREATE_EXT,
15436 length, LPFC_SLI4_MBX_EMBED);
15438 mq_create_ext = &mbox->u.mqe.un.mq_create_ext;
15439 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr;
15440 bf_set(lpfc_mbx_mq_create_ext_num_pages,
15441 &mq_create_ext->u.request, mq->page_count);
15442 bf_set(lpfc_mbx_mq_create_ext_async_evt_link,
15443 &mq_create_ext->u.request, 1);
15444 bf_set(lpfc_mbx_mq_create_ext_async_evt_fip,
15445 &mq_create_ext->u.request, 1);
15446 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5,
15447 &mq_create_ext->u.request, 1);
15448 bf_set(lpfc_mbx_mq_create_ext_async_evt_fc,
15449 &mq_create_ext->u.request, 1);
15450 bf_set(lpfc_mbx_mq_create_ext_async_evt_sli,
15451 &mq_create_ext->u.request, 1);
15452 bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1);
15453 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15454 phba->sli4_hba.pc_sli4_params.mqv);
15455 if (phba->sli4_hba.pc_sli4_params.mqv == LPFC_Q_CREATE_VERSION_1)
15456 bf_set(lpfc_mbx_mq_create_ext_cq_id, &mq_create_ext->u.request,
15459 bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context,
15461 switch (mq->entry_count) {
15463 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15464 "0362 Unsupported MQ count. (%d)\n",
15466 if (mq->entry_count < 16) {
15470 /* fall through - otherwise default to smallest count */
15472 bf_set(lpfc_mq_context_ring_size,
15473 &mq_create_ext->u.request.context,
15474 LPFC_MQ_RING_SIZE_16);
15477 bf_set(lpfc_mq_context_ring_size,
15478 &mq_create_ext->u.request.context,
15479 LPFC_MQ_RING_SIZE_32);
15482 bf_set(lpfc_mq_context_ring_size,
15483 &mq_create_ext->u.request.context,
15484 LPFC_MQ_RING_SIZE_64);
15487 bf_set(lpfc_mq_context_ring_size,
15488 &mq_create_ext->u.request.context,
15489 LPFC_MQ_RING_SIZE_128);
15492 list_for_each_entry(dmabuf, &mq->page_list, list) {
15493 memset(dmabuf->virt, 0, hw_page_size);
15494 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_lo =
15495 putPaddrLow(dmabuf->phys);
15496 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_hi =
15497 putPaddrHigh(dmabuf->phys);
15499 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15500 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
15501 &mq_create_ext->u.response);
15502 if (rc != MBX_SUCCESS) {
15503 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15504 "2795 MQ_CREATE_EXT failed with "
15505 "status x%x. Failback to MQ_CREATE.\n",
15507 lpfc_mq_create_fb_init(phba, mq, mbox, cq);
15508 mq_create = &mbox->u.mqe.un.mq_create;
15509 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15510 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
15511 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
15512 &mq_create->u.response);
15515 /* The IOCTL status is embedded in the mailbox subheader. */
15516 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15517 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15518 if (shdr_status || shdr_add_status || rc) {
15519 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15520 "2502 MQ_CREATE mailbox failed with "
15521 "status x%x add_status x%x, mbx status x%x\n",
15522 shdr_status, shdr_add_status, rc);
15526 if (mq->queue_id == 0xFFFF) {
15530 mq->type = LPFC_MQ;
15531 mq->assoc_qid = cq->queue_id;
15532 mq->subtype = subtype;
15533 mq->host_index = 0;
15536 /* link the mq onto the parent cq child list */
15537 list_add_tail(&mq->list, &cq->child_list);
15539 mempool_free(mbox, phba->mbox_mem_pool);
15544 * lpfc_wq_create - Create a Work Queue on the HBA
15545 * @phba: HBA structure that indicates port to create a queue on.
15546 * @wq: The queue structure to use to create the work queue.
15547 * @cq: The completion queue to bind this work queue to.
15548 * @subtype: The subtype of the work queue indicating its functionality.
15550 * This function creates a work queue, as detailed in @wq, on a port, described
15551 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
15553 * The @phba struct is used to send mailbox command to HBA. The @wq struct
15554 * is used to get the entry count and entry size that are necessary to
15555 * determine the number of pages to allocate and use for this queue. The @cq
15556 * is used to indicate which completion queue to bind this work queue to. This
15557 * function will send the WQ_CREATE mailbox command to the HBA to setup the
15558 * work queue. This function is asynchronous and will wait for the mailbox
15559 * command to finish before continuing.
15561 * On success this function will return a zero. If unable to allocate enough
15562 * memory this function will return -ENOMEM. If the queue create mailbox command
15563 * fails this function will return -ENXIO.
15566 lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
15567 struct lpfc_queue *cq, uint32_t subtype)
15569 struct lpfc_mbx_wq_create *wq_create;
15570 struct lpfc_dmabuf *dmabuf;
15571 LPFC_MBOXQ_t *mbox;
15572 int rc, length, status = 0;
15573 uint32_t shdr_status, shdr_add_status;
15574 union lpfc_sli4_cfg_shdr *shdr;
15575 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15576 struct dma_address *page;
15577 void __iomem *bar_memmap_p;
15578 uint32_t db_offset;
15579 uint16_t pci_barset;
15580 uint8_t dpp_barset;
15581 uint32_t dpp_offset;
15582 unsigned long pg_addr;
15583 uint8_t wq_create_version;
15585 /* sanity check on queue memory */
15588 if (!phba->sli4_hba.pc_sli4_params.supported)
15589 hw_page_size = wq->page_size;
15591 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15594 length = (sizeof(struct lpfc_mbx_wq_create) -
15595 sizeof(struct lpfc_sli4_cfg_mhdr));
15596 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15597 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
15598 length, LPFC_SLI4_MBX_EMBED);
15599 wq_create = &mbox->u.mqe.un.wq_create;
15600 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
15601 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
15603 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
15606 /* wqv is the earliest version supported, NOT the latest */
15607 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15608 phba->sli4_hba.pc_sli4_params.wqv);
15610 if ((phba->sli4_hba.pc_sli4_params.wqsize & LPFC_WQ_SZ128_SUPPORT) ||
15611 (wq->page_size > SLI4_PAGE_SIZE))
15612 wq_create_version = LPFC_Q_CREATE_VERSION_1;
15614 wq_create_version = LPFC_Q_CREATE_VERSION_0;
15617 if (phba->sli4_hba.pc_sli4_params.wqsize & LPFC_WQ_SZ128_SUPPORT)
15618 wq_create_version = LPFC_Q_CREATE_VERSION_1;
15620 wq_create_version = LPFC_Q_CREATE_VERSION_0;
15622 switch (wq_create_version) {
15623 case LPFC_Q_CREATE_VERSION_1:
15624 bf_set(lpfc_mbx_wq_create_wqe_count, &wq_create->u.request_1,
15626 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15627 LPFC_Q_CREATE_VERSION_1);
15629 switch (wq->entry_size) {
15632 bf_set(lpfc_mbx_wq_create_wqe_size,
15633 &wq_create->u.request_1,
15634 LPFC_WQ_WQE_SIZE_64);
15637 bf_set(lpfc_mbx_wq_create_wqe_size,
15638 &wq_create->u.request_1,
15639 LPFC_WQ_WQE_SIZE_128);
15642 /* Request DPP by default */
15643 bf_set(lpfc_mbx_wq_create_dpp_req, &wq_create->u.request_1, 1);
15644 bf_set(lpfc_mbx_wq_create_page_size,
15645 &wq_create->u.request_1,
15646 (wq->page_size / SLI4_PAGE_SIZE));
15647 page = wq_create->u.request_1.page;
15650 page = wq_create->u.request.page;
15654 list_for_each_entry(dmabuf, &wq->page_list, list) {
15655 memset(dmabuf->virt, 0, hw_page_size);
15656 page[dmabuf->buffer_tag].addr_lo = putPaddrLow(dmabuf->phys);
15657 page[dmabuf->buffer_tag].addr_hi = putPaddrHigh(dmabuf->phys);
15660 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
15661 bf_set(lpfc_mbx_wq_create_dua, &wq_create->u.request, 1);
15663 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15664 /* The IOCTL status is embedded in the mailbox subheader. */
15665 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15666 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15667 if (shdr_status || shdr_add_status || rc) {
15668 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15669 "2503 WQ_CREATE mailbox failed with "
15670 "status x%x add_status x%x, mbx status x%x\n",
15671 shdr_status, shdr_add_status, rc);
15676 if (wq_create_version == LPFC_Q_CREATE_VERSION_0)
15677 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id,
15678 &wq_create->u.response);
15680 wq->queue_id = bf_get(lpfc_mbx_wq_create_v1_q_id,
15681 &wq_create->u.response_1);
15683 if (wq->queue_id == 0xFFFF) {
15688 wq->db_format = LPFC_DB_LIST_FORMAT;
15689 if (wq_create_version == LPFC_Q_CREATE_VERSION_0) {
15690 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
15691 wq->db_format = bf_get(lpfc_mbx_wq_create_db_format,
15692 &wq_create->u.response);
15693 if ((wq->db_format != LPFC_DB_LIST_FORMAT) &&
15694 (wq->db_format != LPFC_DB_RING_FORMAT)) {
15695 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15696 "3265 WQ[%d] doorbell format "
15697 "not supported: x%x\n",
15698 wq->queue_id, wq->db_format);
15702 pci_barset = bf_get(lpfc_mbx_wq_create_bar_set,
15703 &wq_create->u.response);
15704 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba,
15706 if (!bar_memmap_p) {
15707 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15708 "3263 WQ[%d] failed to memmap "
15709 "pci barset:x%x\n",
15710 wq->queue_id, pci_barset);
15714 db_offset = wq_create->u.response.doorbell_offset;
15715 if ((db_offset != LPFC_ULP0_WQ_DOORBELL) &&
15716 (db_offset != LPFC_ULP1_WQ_DOORBELL)) {
15717 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15718 "3252 WQ[%d] doorbell offset "
15719 "not supported: x%x\n",
15720 wq->queue_id, db_offset);
15724 wq->db_regaddr = bar_memmap_p + db_offset;
15725 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15726 "3264 WQ[%d]: barset:x%x, offset:x%x, "
15727 "format:x%x\n", wq->queue_id,
15728 pci_barset, db_offset, wq->db_format);
15730 wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
15732 /* Check if DPP was honored by the firmware */
15733 wq->dpp_enable = bf_get(lpfc_mbx_wq_create_dpp_rsp,
15734 &wq_create->u.response_1);
15735 if (wq->dpp_enable) {
15736 pci_barset = bf_get(lpfc_mbx_wq_create_v1_bar_set,
15737 &wq_create->u.response_1);
15738 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba,
15740 if (!bar_memmap_p) {
15741 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15742 "3267 WQ[%d] failed to memmap "
15743 "pci barset:x%x\n",
15744 wq->queue_id, pci_barset);
15748 db_offset = wq_create->u.response_1.doorbell_offset;
15749 wq->db_regaddr = bar_memmap_p + db_offset;
15750 wq->dpp_id = bf_get(lpfc_mbx_wq_create_dpp_id,
15751 &wq_create->u.response_1);
15752 dpp_barset = bf_get(lpfc_mbx_wq_create_dpp_bar,
15753 &wq_create->u.response_1);
15754 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba,
15756 if (!bar_memmap_p) {
15757 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15758 "3268 WQ[%d] failed to memmap "
15759 "pci barset:x%x\n",
15760 wq->queue_id, dpp_barset);
15764 dpp_offset = wq_create->u.response_1.dpp_offset;
15765 wq->dpp_regaddr = bar_memmap_p + dpp_offset;
15766 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15767 "3271 WQ[%d]: barset:x%x, offset:x%x, "
15768 "dpp_id:x%x dpp_barset:x%x "
15769 "dpp_offset:x%x\n",
15770 wq->queue_id, pci_barset, db_offset,
15771 wq->dpp_id, dpp_barset, dpp_offset);
15773 /* Enable combined writes for DPP aperture */
15774 pg_addr = (unsigned long)(wq->dpp_regaddr) & PAGE_MASK;
15776 rc = set_memory_wc(pg_addr, 1);
15778 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15779 "3272 Cannot setup Combined "
15780 "Write on WQ[%d] - disable DPP\n",
15782 phba->cfg_enable_dpp = 0;
15785 phba->cfg_enable_dpp = 0;
15788 wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
15790 wq->pring = kzalloc(sizeof(struct lpfc_sli_ring), GFP_KERNEL);
15791 if (wq->pring == NULL) {
15795 wq->type = LPFC_WQ;
15796 wq->assoc_qid = cq->queue_id;
15797 wq->subtype = subtype;
15798 wq->host_index = 0;
15800 wq->notify_interval = LPFC_WQ_NOTIFY_INTRVL;
15802 /* link the wq onto the parent cq child list */
15803 list_add_tail(&wq->list, &cq->child_list);
15805 mempool_free(mbox, phba->mbox_mem_pool);
15810 * lpfc_rq_create - Create a Receive Queue on the HBA
15811 * @phba: HBA structure that indicates port to create a queue on.
15812 * @hrq: The queue structure to use to create the header receive queue.
15813 * @drq: The queue structure to use to create the data receive queue.
15814 * @cq: The completion queue to bind this work queue to.
15816 * This function creates a receive buffer queue pair , as detailed in @hrq and
15817 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
15820 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
15821 * struct is used to get the entry count that is necessary to determine the
15822 * number of pages to use for this queue. The @cq is used to indicate which
15823 * completion queue to bind received buffers that are posted to these queues to.
15824 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
15825 * receive queue pair. This function is asynchronous and will wait for the
15826 * mailbox command to finish before continuing.
15828 * On success this function will return a zero. If unable to allocate enough
15829 * memory this function will return -ENOMEM. If the queue create mailbox command
15830 * fails this function will return -ENXIO.
15833 lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
15834 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
15836 struct lpfc_mbx_rq_create *rq_create;
15837 struct lpfc_dmabuf *dmabuf;
15838 LPFC_MBOXQ_t *mbox;
15839 int rc, length, status = 0;
15840 uint32_t shdr_status, shdr_add_status;
15841 union lpfc_sli4_cfg_shdr *shdr;
15842 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15843 void __iomem *bar_memmap_p;
15844 uint32_t db_offset;
15845 uint16_t pci_barset;
15847 /* sanity check on queue memory */
15848 if (!hrq || !drq || !cq)
15850 if (!phba->sli4_hba.pc_sli4_params.supported)
15851 hw_page_size = SLI4_PAGE_SIZE;
15853 if (hrq->entry_count != drq->entry_count)
15855 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15858 length = (sizeof(struct lpfc_mbx_rq_create) -
15859 sizeof(struct lpfc_sli4_cfg_mhdr));
15860 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15861 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
15862 length, LPFC_SLI4_MBX_EMBED);
15863 rq_create = &mbox->u.mqe.un.rq_create;
15864 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
15865 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15866 phba->sli4_hba.pc_sli4_params.rqv);
15867 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
15868 bf_set(lpfc_rq_context_rqe_count_1,
15869 &rq_create->u.request.context,
15871 rq_create->u.request.context.buffer_size = LPFC_HDR_BUF_SIZE;
15872 bf_set(lpfc_rq_context_rqe_size,
15873 &rq_create->u.request.context,
15875 bf_set(lpfc_rq_context_page_size,
15876 &rq_create->u.request.context,
15877 LPFC_RQ_PAGE_SIZE_4096);
15879 switch (hrq->entry_count) {
15881 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15882 "2535 Unsupported RQ count. (%d)\n",
15884 if (hrq->entry_count < 512) {
15888 /* fall through - otherwise default to smallest count */
15890 bf_set(lpfc_rq_context_rqe_count,
15891 &rq_create->u.request.context,
15892 LPFC_RQ_RING_SIZE_512);
15895 bf_set(lpfc_rq_context_rqe_count,
15896 &rq_create->u.request.context,
15897 LPFC_RQ_RING_SIZE_1024);
15900 bf_set(lpfc_rq_context_rqe_count,
15901 &rq_create->u.request.context,
15902 LPFC_RQ_RING_SIZE_2048);
15905 bf_set(lpfc_rq_context_rqe_count,
15906 &rq_create->u.request.context,
15907 LPFC_RQ_RING_SIZE_4096);
15910 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
15911 LPFC_HDR_BUF_SIZE);
15913 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
15915 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
15917 list_for_each_entry(dmabuf, &hrq->page_list, list) {
15918 memset(dmabuf->virt, 0, hw_page_size);
15919 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
15920 putPaddrLow(dmabuf->phys);
15921 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
15922 putPaddrHigh(dmabuf->phys);
15924 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
15925 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
15927 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15928 /* The IOCTL status is embedded in the mailbox subheader. */
15929 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15930 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15931 if (shdr_status || shdr_add_status || rc) {
15932 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15933 "2504 RQ_CREATE mailbox failed with "
15934 "status x%x add_status x%x, mbx status x%x\n",
15935 shdr_status, shdr_add_status, rc);
15939 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
15940 if (hrq->queue_id == 0xFFFF) {
15945 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
15946 hrq->db_format = bf_get(lpfc_mbx_rq_create_db_format,
15947 &rq_create->u.response);
15948 if ((hrq->db_format != LPFC_DB_LIST_FORMAT) &&
15949 (hrq->db_format != LPFC_DB_RING_FORMAT)) {
15950 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15951 "3262 RQ [%d] doorbell format not "
15952 "supported: x%x\n", hrq->queue_id,
15958 pci_barset = bf_get(lpfc_mbx_rq_create_bar_set,
15959 &rq_create->u.response);
15960 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
15961 if (!bar_memmap_p) {
15962 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15963 "3269 RQ[%d] failed to memmap pci "
15964 "barset:x%x\n", hrq->queue_id,
15970 db_offset = rq_create->u.response.doorbell_offset;
15971 if ((db_offset != LPFC_ULP0_RQ_DOORBELL) &&
15972 (db_offset != LPFC_ULP1_RQ_DOORBELL)) {
15973 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15974 "3270 RQ[%d] doorbell offset not "
15975 "supported: x%x\n", hrq->queue_id,
15980 hrq->db_regaddr = bar_memmap_p + db_offset;
15981 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15982 "3266 RQ[qid:%d]: barset:x%x, offset:x%x, "
15983 "format:x%x\n", hrq->queue_id, pci_barset,
15984 db_offset, hrq->db_format);
15986 hrq->db_format = LPFC_DB_RING_FORMAT;
15987 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
15989 hrq->type = LPFC_HRQ;
15990 hrq->assoc_qid = cq->queue_id;
15991 hrq->subtype = subtype;
15992 hrq->host_index = 0;
15993 hrq->hba_index = 0;
15994 hrq->notify_interval = LPFC_RQ_NOTIFY_INTRVL;
15996 /* now create the data queue */
15997 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15998 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
15999 length, LPFC_SLI4_MBX_EMBED);
16000 bf_set(lpfc_mbox_hdr_version, &shdr->request,
16001 phba->sli4_hba.pc_sli4_params.rqv);
16002 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
16003 bf_set(lpfc_rq_context_rqe_count_1,
16004 &rq_create->u.request.context, hrq->entry_count);
16005 if (subtype == LPFC_NVMET)
16006 rq_create->u.request.context.buffer_size =
16007 LPFC_NVMET_DATA_BUF_SIZE;
16009 rq_create->u.request.context.buffer_size =
16010 LPFC_DATA_BUF_SIZE;
16011 bf_set(lpfc_rq_context_rqe_size, &rq_create->u.request.context,
16013 bf_set(lpfc_rq_context_page_size, &rq_create->u.request.context,
16014 (PAGE_SIZE/SLI4_PAGE_SIZE));
16016 switch (drq->entry_count) {
16018 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16019 "2536 Unsupported RQ count. (%d)\n",
16021 if (drq->entry_count < 512) {
16025 /* fall through - otherwise default to smallest count */
16027 bf_set(lpfc_rq_context_rqe_count,
16028 &rq_create->u.request.context,
16029 LPFC_RQ_RING_SIZE_512);
16032 bf_set(lpfc_rq_context_rqe_count,
16033 &rq_create->u.request.context,
16034 LPFC_RQ_RING_SIZE_1024);
16037 bf_set(lpfc_rq_context_rqe_count,
16038 &rq_create->u.request.context,
16039 LPFC_RQ_RING_SIZE_2048);
16042 bf_set(lpfc_rq_context_rqe_count,
16043 &rq_create->u.request.context,
16044 LPFC_RQ_RING_SIZE_4096);
16047 if (subtype == LPFC_NVMET)
16048 bf_set(lpfc_rq_context_buf_size,
16049 &rq_create->u.request.context,
16050 LPFC_NVMET_DATA_BUF_SIZE);
16052 bf_set(lpfc_rq_context_buf_size,
16053 &rq_create->u.request.context,
16054 LPFC_DATA_BUF_SIZE);
16056 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
16058 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
16060 list_for_each_entry(dmabuf, &drq->page_list, list) {
16061 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
16062 putPaddrLow(dmabuf->phys);
16063 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
16064 putPaddrHigh(dmabuf->phys);
16066 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
16067 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
16068 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16069 /* The IOCTL status is embedded in the mailbox subheader. */
16070 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
16071 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16072 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16073 if (shdr_status || shdr_add_status || rc) {
16077 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
16078 if (drq->queue_id == 0xFFFF) {
16082 drq->type = LPFC_DRQ;
16083 drq->assoc_qid = cq->queue_id;
16084 drq->subtype = subtype;
16085 drq->host_index = 0;
16086 drq->hba_index = 0;
16087 drq->notify_interval = LPFC_RQ_NOTIFY_INTRVL;
16089 /* link the header and data RQs onto the parent cq child list */
16090 list_add_tail(&hrq->list, &cq->child_list);
16091 list_add_tail(&drq->list, &cq->child_list);
16094 mempool_free(mbox, phba->mbox_mem_pool);
16099 * lpfc_mrq_create - Create MRQ Receive Queues on the HBA
16100 * @phba: HBA structure that indicates port to create a queue on.
16101 * @hrqp: The queue structure array to use to create the header receive queues.
16102 * @drqp: The queue structure array to use to create the data receive queues.
16103 * @cqp: The completion queue array to bind these receive queues to.
16105 * This function creates a receive buffer queue pair , as detailed in @hrq and
16106 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
16109 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
16110 * struct is used to get the entry count that is necessary to determine the
16111 * number of pages to use for this queue. The @cq is used to indicate which
16112 * completion queue to bind received buffers that are posted to these queues to.
16113 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
16114 * receive queue pair. This function is asynchronous and will wait for the
16115 * mailbox command to finish before continuing.
16117 * On success this function will return a zero. If unable to allocate enough
16118 * memory this function will return -ENOMEM. If the queue create mailbox command
16119 * fails this function will return -ENXIO.
16122 lpfc_mrq_create(struct lpfc_hba *phba, struct lpfc_queue **hrqp,
16123 struct lpfc_queue **drqp, struct lpfc_queue **cqp,
16126 struct lpfc_queue *hrq, *drq, *cq;
16127 struct lpfc_mbx_rq_create_v2 *rq_create;
16128 struct lpfc_dmabuf *dmabuf;
16129 LPFC_MBOXQ_t *mbox;
16130 int rc, length, alloclen, status = 0;
16131 int cnt, idx, numrq, page_idx = 0;
16132 uint32_t shdr_status, shdr_add_status;
16133 union lpfc_sli4_cfg_shdr *shdr;
16134 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
16136 numrq = phba->cfg_nvmet_mrq;
16137 /* sanity check on array memory */
16138 if (!hrqp || !drqp || !cqp || !numrq)
16140 if (!phba->sli4_hba.pc_sli4_params.supported)
16141 hw_page_size = SLI4_PAGE_SIZE;
16143 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16147 length = sizeof(struct lpfc_mbx_rq_create_v2);
16148 length += ((2 * numrq * hrqp[0]->page_count) *
16149 sizeof(struct dma_address));
16151 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16152 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE, length,
16153 LPFC_SLI4_MBX_NEMBED);
16154 if (alloclen < length) {
16155 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16156 "3099 Allocated DMA memory size (%d) is "
16157 "less than the requested DMA memory size "
16158 "(%d)\n", alloclen, length);
16165 rq_create = mbox->sge_array->addr[0];
16166 shdr = (union lpfc_sli4_cfg_shdr *)&rq_create->cfg_shdr;
16168 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_Q_CREATE_VERSION_2);
16171 for (idx = 0; idx < numrq; idx++) {
16176 /* sanity check on queue memory */
16177 if (!hrq || !drq || !cq) {
16182 if (hrq->entry_count != drq->entry_count) {
16188 bf_set(lpfc_mbx_rq_create_num_pages,
16189 &rq_create->u.request,
16191 bf_set(lpfc_mbx_rq_create_rq_cnt,
16192 &rq_create->u.request, (numrq * 2));
16193 bf_set(lpfc_mbx_rq_create_dnb, &rq_create->u.request,
16195 bf_set(lpfc_rq_context_base_cq,
16196 &rq_create->u.request.context,
16198 bf_set(lpfc_rq_context_data_size,
16199 &rq_create->u.request.context,
16200 LPFC_NVMET_DATA_BUF_SIZE);
16201 bf_set(lpfc_rq_context_hdr_size,
16202 &rq_create->u.request.context,
16203 LPFC_HDR_BUF_SIZE);
16204 bf_set(lpfc_rq_context_rqe_count_1,
16205 &rq_create->u.request.context,
16207 bf_set(lpfc_rq_context_rqe_size,
16208 &rq_create->u.request.context,
16210 bf_set(lpfc_rq_context_page_size,
16211 &rq_create->u.request.context,
16212 (PAGE_SIZE/SLI4_PAGE_SIZE));
16215 list_for_each_entry(dmabuf, &hrq->page_list, list) {
16216 memset(dmabuf->virt, 0, hw_page_size);
16217 cnt = page_idx + dmabuf->buffer_tag;
16218 rq_create->u.request.page[cnt].addr_lo =
16219 putPaddrLow(dmabuf->phys);
16220 rq_create->u.request.page[cnt].addr_hi =
16221 putPaddrHigh(dmabuf->phys);
16227 list_for_each_entry(dmabuf, &drq->page_list, list) {
16228 memset(dmabuf->virt, 0, hw_page_size);
16229 cnt = page_idx + dmabuf->buffer_tag;
16230 rq_create->u.request.page[cnt].addr_lo =
16231 putPaddrLow(dmabuf->phys);
16232 rq_create->u.request.page[cnt].addr_hi =
16233 putPaddrHigh(dmabuf->phys);
16238 hrq->db_format = LPFC_DB_RING_FORMAT;
16239 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
16240 hrq->type = LPFC_HRQ;
16241 hrq->assoc_qid = cq->queue_id;
16242 hrq->subtype = subtype;
16243 hrq->host_index = 0;
16244 hrq->hba_index = 0;
16245 hrq->notify_interval = LPFC_RQ_NOTIFY_INTRVL;
16247 drq->db_format = LPFC_DB_RING_FORMAT;
16248 drq->db_regaddr = phba->sli4_hba.RQDBregaddr;
16249 drq->type = LPFC_DRQ;
16250 drq->assoc_qid = cq->queue_id;
16251 drq->subtype = subtype;
16252 drq->host_index = 0;
16253 drq->hba_index = 0;
16254 drq->notify_interval = LPFC_RQ_NOTIFY_INTRVL;
16256 list_add_tail(&hrq->list, &cq->child_list);
16257 list_add_tail(&drq->list, &cq->child_list);
16260 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16261 /* The IOCTL status is embedded in the mailbox subheader. */
16262 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16263 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16264 if (shdr_status || shdr_add_status || rc) {
16265 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16266 "3120 RQ_CREATE mailbox failed with "
16267 "status x%x add_status x%x, mbx status x%x\n",
16268 shdr_status, shdr_add_status, rc);
16272 rc = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
16273 if (rc == 0xFFFF) {
16278 /* Initialize all RQs with associated queue id */
16279 for (idx = 0; idx < numrq; idx++) {
16281 hrq->queue_id = rc + (2 * idx);
16283 drq->queue_id = rc + (2 * idx) + 1;
16287 lpfc_sli4_mbox_cmd_free(phba, mbox);
16292 * lpfc_eq_destroy - Destroy an event Queue on the HBA
16293 * @eq: The queue structure associated with the queue to destroy.
16295 * This function destroys a queue, as detailed in @eq by sending an mailbox
16296 * command, specific to the type of queue, to the HBA.
16298 * The @eq struct is used to get the queue ID of the queue to destroy.
16300 * On success this function will return a zero. If the queue destroy mailbox
16301 * command fails this function will return -ENXIO.
16304 lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
16306 LPFC_MBOXQ_t *mbox;
16307 int rc, length, status = 0;
16308 uint32_t shdr_status, shdr_add_status;
16309 union lpfc_sli4_cfg_shdr *shdr;
16311 /* sanity check on queue memory */
16315 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
16318 length = (sizeof(struct lpfc_mbx_eq_destroy) -
16319 sizeof(struct lpfc_sli4_cfg_mhdr));
16320 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16321 LPFC_MBOX_OPCODE_EQ_DESTROY,
16322 length, LPFC_SLI4_MBX_EMBED);
16323 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
16325 mbox->vport = eq->phba->pport;
16326 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16328 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
16329 /* The IOCTL status is embedded in the mailbox subheader. */
16330 shdr = (union lpfc_sli4_cfg_shdr *)
16331 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
16332 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16333 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16334 if (shdr_status || shdr_add_status || rc) {
16335 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16336 "2505 EQ_DESTROY mailbox failed with "
16337 "status x%x add_status x%x, mbx status x%x\n",
16338 shdr_status, shdr_add_status, rc);
16342 /* Remove eq from any list */
16343 list_del_init(&eq->list);
16344 mempool_free(mbox, eq->phba->mbox_mem_pool);
16349 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
16350 * @cq: The queue structure associated with the queue to destroy.
16352 * This function destroys a queue, as detailed in @cq by sending an mailbox
16353 * command, specific to the type of queue, to the HBA.
16355 * The @cq struct is used to get the queue ID of the queue to destroy.
16357 * On success this function will return a zero. If the queue destroy mailbox
16358 * command fails this function will return -ENXIO.
16361 lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
16363 LPFC_MBOXQ_t *mbox;
16364 int rc, length, status = 0;
16365 uint32_t shdr_status, shdr_add_status;
16366 union lpfc_sli4_cfg_shdr *shdr;
16368 /* sanity check on queue memory */
16371 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
16374 length = (sizeof(struct lpfc_mbx_cq_destroy) -
16375 sizeof(struct lpfc_sli4_cfg_mhdr));
16376 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16377 LPFC_MBOX_OPCODE_CQ_DESTROY,
16378 length, LPFC_SLI4_MBX_EMBED);
16379 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
16381 mbox->vport = cq->phba->pport;
16382 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16383 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
16384 /* The IOCTL status is embedded in the mailbox subheader. */
16385 shdr = (union lpfc_sli4_cfg_shdr *)
16386 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
16387 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16388 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16389 if (shdr_status || shdr_add_status || rc) {
16390 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16391 "2506 CQ_DESTROY mailbox failed with "
16392 "status x%x add_status x%x, mbx status x%x\n",
16393 shdr_status, shdr_add_status, rc);
16396 /* Remove cq from any list */
16397 list_del_init(&cq->list);
16398 mempool_free(mbox, cq->phba->mbox_mem_pool);
16403 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
16404 * @qm: The queue structure associated with the queue to destroy.
16406 * This function destroys a queue, as detailed in @mq by sending an mailbox
16407 * command, specific to the type of queue, to the HBA.
16409 * The @mq struct is used to get the queue ID of the queue to destroy.
16411 * On success this function will return a zero. If the queue destroy mailbox
16412 * command fails this function will return -ENXIO.
16415 lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
16417 LPFC_MBOXQ_t *mbox;
16418 int rc, length, status = 0;
16419 uint32_t shdr_status, shdr_add_status;
16420 union lpfc_sli4_cfg_shdr *shdr;
16422 /* sanity check on queue memory */
16425 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
16428 length = (sizeof(struct lpfc_mbx_mq_destroy) -
16429 sizeof(struct lpfc_sli4_cfg_mhdr));
16430 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16431 LPFC_MBOX_OPCODE_MQ_DESTROY,
16432 length, LPFC_SLI4_MBX_EMBED);
16433 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
16435 mbox->vport = mq->phba->pport;
16436 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16437 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
16438 /* The IOCTL status is embedded in the mailbox subheader. */
16439 shdr = (union lpfc_sli4_cfg_shdr *)
16440 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
16441 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16442 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16443 if (shdr_status || shdr_add_status || rc) {
16444 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16445 "2507 MQ_DESTROY mailbox failed with "
16446 "status x%x add_status x%x, mbx status x%x\n",
16447 shdr_status, shdr_add_status, rc);
16450 /* Remove mq from any list */
16451 list_del_init(&mq->list);
16452 mempool_free(mbox, mq->phba->mbox_mem_pool);
16457 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
16458 * @wq: The queue structure associated with the queue to destroy.
16460 * This function destroys a queue, as detailed in @wq by sending an mailbox
16461 * command, specific to the type of queue, to the HBA.
16463 * The @wq struct is used to get the queue ID of the queue to destroy.
16465 * On success this function will return a zero. If the queue destroy mailbox
16466 * command fails this function will return -ENXIO.
16469 lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
16471 LPFC_MBOXQ_t *mbox;
16472 int rc, length, status = 0;
16473 uint32_t shdr_status, shdr_add_status;
16474 union lpfc_sli4_cfg_shdr *shdr;
16476 /* sanity check on queue memory */
16479 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
16482 length = (sizeof(struct lpfc_mbx_wq_destroy) -
16483 sizeof(struct lpfc_sli4_cfg_mhdr));
16484 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16485 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
16486 length, LPFC_SLI4_MBX_EMBED);
16487 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
16489 mbox->vport = wq->phba->pport;
16490 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16491 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
16492 shdr = (union lpfc_sli4_cfg_shdr *)
16493 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
16494 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16495 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16496 if (shdr_status || shdr_add_status || rc) {
16497 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16498 "2508 WQ_DESTROY mailbox failed with "
16499 "status x%x add_status x%x, mbx status x%x\n",
16500 shdr_status, shdr_add_status, rc);
16503 /* Remove wq from any list */
16504 list_del_init(&wq->list);
16507 mempool_free(mbox, wq->phba->mbox_mem_pool);
16512 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
16513 * @rq: The queue structure associated with the queue to destroy.
16515 * This function destroys a queue, as detailed in @rq by sending an mailbox
16516 * command, specific to the type of queue, to the HBA.
16518 * The @rq struct is used to get the queue ID of the queue to destroy.
16520 * On success this function will return a zero. If the queue destroy mailbox
16521 * command fails this function will return -ENXIO.
16524 lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
16525 struct lpfc_queue *drq)
16527 LPFC_MBOXQ_t *mbox;
16528 int rc, length, status = 0;
16529 uint32_t shdr_status, shdr_add_status;
16530 union lpfc_sli4_cfg_shdr *shdr;
16532 /* sanity check on queue memory */
16535 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
16538 length = (sizeof(struct lpfc_mbx_rq_destroy) -
16539 sizeof(struct lpfc_sli4_cfg_mhdr));
16540 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16541 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
16542 length, LPFC_SLI4_MBX_EMBED);
16543 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
16545 mbox->vport = hrq->phba->pport;
16546 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16547 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
16548 /* The IOCTL status is embedded in the mailbox subheader. */
16549 shdr = (union lpfc_sli4_cfg_shdr *)
16550 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
16551 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16552 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16553 if (shdr_status || shdr_add_status || rc) {
16554 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16555 "2509 RQ_DESTROY mailbox failed with "
16556 "status x%x add_status x%x, mbx status x%x\n",
16557 shdr_status, shdr_add_status, rc);
16558 if (rc != MBX_TIMEOUT)
16559 mempool_free(mbox, hrq->phba->mbox_mem_pool);
16562 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
16564 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
16565 shdr = (union lpfc_sli4_cfg_shdr *)
16566 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
16567 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16568 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16569 if (shdr_status || shdr_add_status || rc) {
16570 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16571 "2510 RQ_DESTROY mailbox failed with "
16572 "status x%x add_status x%x, mbx status x%x\n",
16573 shdr_status, shdr_add_status, rc);
16576 list_del_init(&hrq->list);
16577 list_del_init(&drq->list);
16578 mempool_free(mbox, hrq->phba->mbox_mem_pool);
16583 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
16584 * @phba: The virtual port for which this call being executed.
16585 * @pdma_phys_addr0: Physical address of the 1st SGL page.
16586 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
16587 * @xritag: the xritag that ties this io to the SGL pages.
16589 * This routine will post the sgl pages for the IO that has the xritag
16590 * that is in the iocbq structure. The xritag is assigned during iocbq
16591 * creation and persists for as long as the driver is loaded.
16592 * if the caller has fewer than 256 scatter gather segments to map then
16593 * pdma_phys_addr1 should be 0.
16594 * If the caller needs to map more than 256 scatter gather segment then
16595 * pdma_phys_addr1 should be a valid physical address.
16596 * physical address for SGLs must be 64 byte aligned.
16597 * If you are going to map 2 SGL's then the first one must have 256 entries
16598 * the second sgl can have between 1 and 256 entries.
16602 * -ENXIO, -ENOMEM - Failure
16605 lpfc_sli4_post_sgl(struct lpfc_hba *phba,
16606 dma_addr_t pdma_phys_addr0,
16607 dma_addr_t pdma_phys_addr1,
16610 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
16611 LPFC_MBOXQ_t *mbox;
16613 uint32_t shdr_status, shdr_add_status;
16615 union lpfc_sli4_cfg_shdr *shdr;
16617 if (xritag == NO_XRI) {
16618 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16619 "0364 Invalid param:\n");
16623 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16627 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16628 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
16629 sizeof(struct lpfc_mbx_post_sgl_pages) -
16630 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
16632 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
16633 &mbox->u.mqe.un.post_sgl_pages;
16634 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
16635 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
16637 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
16638 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
16639 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
16640 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
16642 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
16643 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
16644 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
16645 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
16646 if (!phba->sli4_hba.intr_enable)
16647 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16649 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
16650 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16652 /* The IOCTL status is embedded in the mailbox subheader. */
16653 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
16654 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16655 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16656 if (rc != MBX_TIMEOUT)
16657 mempool_free(mbox, phba->mbox_mem_pool);
16658 if (shdr_status || shdr_add_status || rc) {
16659 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16660 "2511 POST_SGL mailbox failed with "
16661 "status x%x add_status x%x, mbx status x%x\n",
16662 shdr_status, shdr_add_status, rc);
16668 * lpfc_sli4_alloc_xri - Get an available rpi in the device's range
16669 * @phba: pointer to lpfc hba data structure.
16671 * This routine is invoked to post rpi header templates to the
16672 * HBA consistent with the SLI-4 interface spec. This routine
16673 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
16674 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
16677 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
16678 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
16681 lpfc_sli4_alloc_xri(struct lpfc_hba *phba)
16686 * Fetch the next logical xri. Because this index is logical,
16687 * the driver starts at 0 each time.
16689 spin_lock_irq(&phba->hbalock);
16690 xri = find_next_zero_bit(phba->sli4_hba.xri_bmask,
16691 phba->sli4_hba.max_cfg_param.max_xri, 0);
16692 if (xri >= phba->sli4_hba.max_cfg_param.max_xri) {
16693 spin_unlock_irq(&phba->hbalock);
16696 set_bit(xri, phba->sli4_hba.xri_bmask);
16697 phba->sli4_hba.max_cfg_param.xri_used++;
16699 spin_unlock_irq(&phba->hbalock);
16704 * lpfc_sli4_free_xri - Release an xri for reuse.
16705 * @phba: pointer to lpfc hba data structure.
16707 * This routine is invoked to release an xri to the pool of
16708 * available rpis maintained by the driver.
16711 __lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
16713 if (test_and_clear_bit(xri, phba->sli4_hba.xri_bmask)) {
16714 phba->sli4_hba.max_cfg_param.xri_used--;
16719 * lpfc_sli4_free_xri - Release an xri for reuse.
16720 * @phba: pointer to lpfc hba data structure.
16722 * This routine is invoked to release an xri to the pool of
16723 * available rpis maintained by the driver.
16726 lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
16728 spin_lock_irq(&phba->hbalock);
16729 __lpfc_sli4_free_xri(phba, xri);
16730 spin_unlock_irq(&phba->hbalock);
16734 * lpfc_sli4_next_xritag - Get an xritag for the io
16735 * @phba: Pointer to HBA context object.
16737 * This function gets an xritag for the iocb. If there is no unused xritag
16738 * it will return 0xffff.
16739 * The function returns the allocated xritag if successful, else returns zero.
16740 * Zero is not a valid xritag.
16741 * The caller is not required to hold any lock.
16744 lpfc_sli4_next_xritag(struct lpfc_hba *phba)
16746 uint16_t xri_index;
16748 xri_index = lpfc_sli4_alloc_xri(phba);
16749 if (xri_index == NO_XRI)
16750 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
16751 "2004 Failed to allocate XRI.last XRITAG is %d"
16752 " Max XRI is %d, Used XRI is %d\n",
16754 phba->sli4_hba.max_cfg_param.max_xri,
16755 phba->sli4_hba.max_cfg_param.xri_used);
16760 * lpfc_sli4_post_sgl_list - post a block of ELS sgls to the port.
16761 * @phba: pointer to lpfc hba data structure.
16762 * @post_sgl_list: pointer to els sgl entry list.
16763 * @count: number of els sgl entries on the list.
16765 * This routine is invoked to post a block of driver's sgl pages to the
16766 * HBA using non-embedded mailbox command. No Lock is held. This routine
16767 * is only called when the driver is loading and after all IO has been
16771 lpfc_sli4_post_sgl_list(struct lpfc_hba *phba,
16772 struct list_head *post_sgl_list,
16775 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
16776 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
16777 struct sgl_page_pairs *sgl_pg_pairs;
16779 LPFC_MBOXQ_t *mbox;
16780 uint32_t reqlen, alloclen, pg_pairs;
16782 uint16_t xritag_start = 0;
16784 uint32_t shdr_status, shdr_add_status;
16785 union lpfc_sli4_cfg_shdr *shdr;
16787 reqlen = post_cnt * sizeof(struct sgl_page_pairs) +
16788 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
16789 if (reqlen > SLI4_PAGE_SIZE) {
16790 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16791 "2559 Block sgl registration required DMA "
16792 "size (%d) great than a page\n", reqlen);
16796 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16800 /* Allocate DMA memory and set up the non-embedded mailbox command */
16801 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16802 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
16803 LPFC_SLI4_MBX_NEMBED);
16805 if (alloclen < reqlen) {
16806 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16807 "0285 Allocated DMA memory size (%d) is "
16808 "less than the requested DMA memory "
16809 "size (%d)\n", alloclen, reqlen);
16810 lpfc_sli4_mbox_cmd_free(phba, mbox);
16813 /* Set up the SGL pages in the non-embedded DMA pages */
16814 viraddr = mbox->sge_array->addr[0];
16815 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
16816 sgl_pg_pairs = &sgl->sgl_pg_pairs;
16819 list_for_each_entry_safe(sglq_entry, sglq_next, post_sgl_list, list) {
16820 /* Set up the sge entry */
16821 sgl_pg_pairs->sgl_pg0_addr_lo =
16822 cpu_to_le32(putPaddrLow(sglq_entry->phys));
16823 sgl_pg_pairs->sgl_pg0_addr_hi =
16824 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
16825 sgl_pg_pairs->sgl_pg1_addr_lo =
16826 cpu_to_le32(putPaddrLow(0));
16827 sgl_pg_pairs->sgl_pg1_addr_hi =
16828 cpu_to_le32(putPaddrHigh(0));
16830 /* Keep the first xritag on the list */
16832 xritag_start = sglq_entry->sli4_xritag;
16837 /* Complete initialization and perform endian conversion. */
16838 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
16839 bf_set(lpfc_post_sgl_pages_xricnt, sgl, post_cnt);
16840 sgl->word0 = cpu_to_le32(sgl->word0);
16842 if (!phba->sli4_hba.intr_enable)
16843 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16845 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
16846 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16848 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
16849 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16850 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16851 if (rc != MBX_TIMEOUT)
16852 lpfc_sli4_mbox_cmd_free(phba, mbox);
16853 if (shdr_status || shdr_add_status || rc) {
16854 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16855 "2513 POST_SGL_BLOCK mailbox command failed "
16856 "status x%x add_status x%x mbx status x%x\n",
16857 shdr_status, shdr_add_status, rc);
16864 * lpfc_sli4_post_io_sgl_block - post a block of nvme sgl list to firmware
16865 * @phba: pointer to lpfc hba data structure.
16866 * @nblist: pointer to nvme buffer list.
16867 * @count: number of scsi buffers on the list.
16869 * This routine is invoked to post a block of @count scsi sgl pages from a
16870 * SCSI buffer list @nblist to the HBA using non-embedded mailbox command.
16875 lpfc_sli4_post_io_sgl_block(struct lpfc_hba *phba, struct list_head *nblist,
16878 struct lpfc_io_buf *lpfc_ncmd;
16879 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
16880 struct sgl_page_pairs *sgl_pg_pairs;
16882 LPFC_MBOXQ_t *mbox;
16883 uint32_t reqlen, alloclen, pg_pairs;
16885 uint16_t xritag_start = 0;
16887 uint32_t shdr_status, shdr_add_status;
16888 dma_addr_t pdma_phys_bpl1;
16889 union lpfc_sli4_cfg_shdr *shdr;
16891 /* Calculate the requested length of the dma memory */
16892 reqlen = count * sizeof(struct sgl_page_pairs) +
16893 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
16894 if (reqlen > SLI4_PAGE_SIZE) {
16895 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
16896 "6118 Block sgl registration required DMA "
16897 "size (%d) great than a page\n", reqlen);
16900 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16902 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16903 "6119 Failed to allocate mbox cmd memory\n");
16907 /* Allocate DMA memory and set up the non-embedded mailbox command */
16908 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16909 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
16910 reqlen, LPFC_SLI4_MBX_NEMBED);
16912 if (alloclen < reqlen) {
16913 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16914 "6120 Allocated DMA memory size (%d) is "
16915 "less than the requested DMA memory "
16916 "size (%d)\n", alloclen, reqlen);
16917 lpfc_sli4_mbox_cmd_free(phba, mbox);
16921 /* Get the first SGE entry from the non-embedded DMA memory */
16922 viraddr = mbox->sge_array->addr[0];
16924 /* Set up the SGL pages in the non-embedded DMA pages */
16925 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
16926 sgl_pg_pairs = &sgl->sgl_pg_pairs;
16929 list_for_each_entry(lpfc_ncmd, nblist, list) {
16930 /* Set up the sge entry */
16931 sgl_pg_pairs->sgl_pg0_addr_lo =
16932 cpu_to_le32(putPaddrLow(lpfc_ncmd->dma_phys_sgl));
16933 sgl_pg_pairs->sgl_pg0_addr_hi =
16934 cpu_to_le32(putPaddrHigh(lpfc_ncmd->dma_phys_sgl));
16935 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
16936 pdma_phys_bpl1 = lpfc_ncmd->dma_phys_sgl +
16939 pdma_phys_bpl1 = 0;
16940 sgl_pg_pairs->sgl_pg1_addr_lo =
16941 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
16942 sgl_pg_pairs->sgl_pg1_addr_hi =
16943 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
16944 /* Keep the first xritag on the list */
16946 xritag_start = lpfc_ncmd->cur_iocbq.sli4_xritag;
16950 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
16951 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
16952 /* Perform endian conversion if necessary */
16953 sgl->word0 = cpu_to_le32(sgl->word0);
16955 if (!phba->sli4_hba.intr_enable) {
16956 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16958 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
16959 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16961 shdr = (union lpfc_sli4_cfg_shdr *)&sgl->cfg_shdr;
16962 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16963 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16964 if (rc != MBX_TIMEOUT)
16965 lpfc_sli4_mbox_cmd_free(phba, mbox);
16966 if (shdr_status || shdr_add_status || rc) {
16967 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16968 "6125 POST_SGL_BLOCK mailbox command failed "
16969 "status x%x add_status x%x mbx status x%x\n",
16970 shdr_status, shdr_add_status, rc);
16977 * lpfc_sli4_post_io_sgl_list - Post blocks of nvme buffer sgls from a list
16978 * @phba: pointer to lpfc hba data structure.
16979 * @post_nblist: pointer to the nvme buffer list.
16981 * This routine walks a list of nvme buffers that was passed in. It attempts
16982 * to construct blocks of nvme buffer sgls which contains contiguous xris and
16983 * uses the non-embedded SGL block post mailbox commands to post to the port.
16984 * For single NVME buffer sgl with non-contiguous xri, if any, it shall use
16985 * embedded SGL post mailbox command for posting. The @post_nblist passed in
16986 * must be local list, thus no lock is needed when manipulate the list.
16988 * Returns: 0 = failure, non-zero number of successfully posted buffers.
16991 lpfc_sli4_post_io_sgl_list(struct lpfc_hba *phba,
16992 struct list_head *post_nblist, int sb_count)
16994 struct lpfc_io_buf *lpfc_ncmd, *lpfc_ncmd_next;
16995 int status, sgl_size;
16996 int post_cnt = 0, block_cnt = 0, num_posting = 0, num_posted = 0;
16997 dma_addr_t pdma_phys_sgl1;
16998 int last_xritag = NO_XRI;
17000 LIST_HEAD(prep_nblist);
17001 LIST_HEAD(blck_nblist);
17002 LIST_HEAD(nvme_nblist);
17008 sgl_size = phba->cfg_sg_dma_buf_size;
17009 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, post_nblist, list) {
17010 list_del_init(&lpfc_ncmd->list);
17012 if ((last_xritag != NO_XRI) &&
17013 (lpfc_ncmd->cur_iocbq.sli4_xritag != last_xritag + 1)) {
17014 /* a hole in xri block, form a sgl posting block */
17015 list_splice_init(&prep_nblist, &blck_nblist);
17016 post_cnt = block_cnt - 1;
17017 /* prepare list for next posting block */
17018 list_add_tail(&lpfc_ncmd->list, &prep_nblist);
17021 /* prepare list for next posting block */
17022 list_add_tail(&lpfc_ncmd->list, &prep_nblist);
17023 /* enough sgls for non-embed sgl mbox command */
17024 if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
17025 list_splice_init(&prep_nblist, &blck_nblist);
17026 post_cnt = block_cnt;
17031 last_xritag = lpfc_ncmd->cur_iocbq.sli4_xritag;
17033 /* end of repost sgl list condition for NVME buffers */
17034 if (num_posting == sb_count) {
17035 if (post_cnt == 0) {
17036 /* last sgl posting block */
17037 list_splice_init(&prep_nblist, &blck_nblist);
17038 post_cnt = block_cnt;
17039 } else if (block_cnt == 1) {
17040 /* last single sgl with non-contiguous xri */
17041 if (sgl_size > SGL_PAGE_SIZE)
17043 lpfc_ncmd->dma_phys_sgl +
17046 pdma_phys_sgl1 = 0;
17047 cur_xritag = lpfc_ncmd->cur_iocbq.sli4_xritag;
17048 status = lpfc_sli4_post_sgl(
17049 phba, lpfc_ncmd->dma_phys_sgl,
17050 pdma_phys_sgl1, cur_xritag);
17052 /* Post error. Buffer unavailable. */
17053 lpfc_ncmd->flags |=
17054 LPFC_SBUF_NOT_POSTED;
17056 /* Post success. Bffer available. */
17057 lpfc_ncmd->flags &=
17058 ~LPFC_SBUF_NOT_POSTED;
17059 lpfc_ncmd->status = IOSTAT_SUCCESS;
17062 /* success, put on NVME buffer sgl list */
17063 list_add_tail(&lpfc_ncmd->list, &nvme_nblist);
17067 /* continue until a nembed page worth of sgls */
17071 /* post block of NVME buffer list sgls */
17072 status = lpfc_sli4_post_io_sgl_block(phba, &blck_nblist,
17075 /* don't reset xirtag due to hole in xri block */
17076 if (block_cnt == 0)
17077 last_xritag = NO_XRI;
17079 /* reset NVME buffer post count for next round of posting */
17082 /* put posted NVME buffer-sgl posted on NVME buffer sgl list */
17083 while (!list_empty(&blck_nblist)) {
17084 list_remove_head(&blck_nblist, lpfc_ncmd,
17085 struct lpfc_io_buf, list);
17087 /* Post error. Mark buffer unavailable. */
17088 lpfc_ncmd->flags |= LPFC_SBUF_NOT_POSTED;
17090 /* Post success, Mark buffer available. */
17091 lpfc_ncmd->flags &= ~LPFC_SBUF_NOT_POSTED;
17092 lpfc_ncmd->status = IOSTAT_SUCCESS;
17095 list_add_tail(&lpfc_ncmd->list, &nvme_nblist);
17098 /* Push NVME buffers with sgl posted to the available list */
17099 lpfc_io_buf_replenish(phba, &nvme_nblist);
17105 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
17106 * @phba: pointer to lpfc_hba struct that the frame was received on
17107 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
17109 * This function checks the fields in the @fc_hdr to see if the FC frame is a
17110 * valid type of frame that the LPFC driver will handle. This function will
17111 * return a zero if the frame is a valid frame or a non zero value when the
17112 * frame does not pass the check.
17115 lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
17117 /* make rctl_names static to save stack space */
17118 struct fc_vft_header *fc_vft_hdr;
17119 uint32_t *header = (uint32_t *) fc_hdr;
17121 #define FC_RCTL_MDS_DIAGS 0xF4
17123 switch (fc_hdr->fh_r_ctl) {
17124 case FC_RCTL_DD_UNCAT: /* uncategorized information */
17125 case FC_RCTL_DD_SOL_DATA: /* solicited data */
17126 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
17127 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
17128 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
17129 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
17130 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
17131 case FC_RCTL_DD_CMD_STATUS: /* command status */
17132 case FC_RCTL_ELS_REQ: /* extended link services request */
17133 case FC_RCTL_ELS_REP: /* extended link services reply */
17134 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
17135 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
17136 case FC_RCTL_BA_NOP: /* basic link service NOP */
17137 case FC_RCTL_BA_ABTS: /* basic link service abort */
17138 case FC_RCTL_BA_RMC: /* remove connection */
17139 case FC_RCTL_BA_ACC: /* basic accept */
17140 case FC_RCTL_BA_RJT: /* basic reject */
17141 case FC_RCTL_BA_PRMT:
17142 case FC_RCTL_ACK_1: /* acknowledge_1 */
17143 case FC_RCTL_ACK_0: /* acknowledge_0 */
17144 case FC_RCTL_P_RJT: /* port reject */
17145 case FC_RCTL_F_RJT: /* fabric reject */
17146 case FC_RCTL_P_BSY: /* port busy */
17147 case FC_RCTL_F_BSY: /* fabric busy to data frame */
17148 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
17149 case FC_RCTL_LCR: /* link credit reset */
17150 case FC_RCTL_MDS_DIAGS: /* MDS Diagnostics */
17151 case FC_RCTL_END: /* end */
17153 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
17154 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
17155 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
17156 return lpfc_fc_frame_check(phba, fc_hdr);
17161 switch (fc_hdr->fh_type) {
17174 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
17175 "2538 Received frame rctl:x%x, type:x%x, "
17176 "frame Data:%08x %08x %08x %08x %08x %08x %08x\n",
17177 fc_hdr->fh_r_ctl, fc_hdr->fh_type,
17178 be32_to_cpu(header[0]), be32_to_cpu(header[1]),
17179 be32_to_cpu(header[2]), be32_to_cpu(header[3]),
17180 be32_to_cpu(header[4]), be32_to_cpu(header[5]),
17181 be32_to_cpu(header[6]));
17184 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
17185 "2539 Dropped frame rctl:x%x type:x%x\n",
17186 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
17191 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
17192 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
17194 * This function processes the FC header to retrieve the VFI from the VF
17195 * header, if one exists. This function will return the VFI if one exists
17196 * or 0 if no VSAN Header exists.
17199 lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
17201 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
17203 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
17205 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
17209 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
17210 * @phba: Pointer to the HBA structure to search for the vport on
17211 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
17212 * @fcfi: The FC Fabric ID that the frame came from
17214 * This function searches the @phba for a vport that matches the content of the
17215 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
17216 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
17217 * returns the matching vport pointer or NULL if unable to match frame to a
17220 static struct lpfc_vport *
17221 lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
17222 uint16_t fcfi, uint32_t did)
17224 struct lpfc_vport **vports;
17225 struct lpfc_vport *vport = NULL;
17228 if (did == Fabric_DID)
17229 return phba->pport;
17230 if ((phba->pport->fc_flag & FC_PT2PT) &&
17231 !(phba->link_state == LPFC_HBA_READY))
17232 return phba->pport;
17234 vports = lpfc_create_vport_work_array(phba);
17235 if (vports != NULL) {
17236 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
17237 if (phba->fcf.fcfi == fcfi &&
17238 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
17239 vports[i]->fc_myDID == did) {
17245 lpfc_destroy_vport_work_array(phba, vports);
17250 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
17251 * @vport: The vport to work on.
17253 * This function updates the receive sequence time stamp for this vport. The
17254 * receive sequence time stamp indicates the time that the last frame of the
17255 * the sequence that has been idle for the longest amount of time was received.
17256 * the driver uses this time stamp to indicate if any received sequences have
17260 lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
17262 struct lpfc_dmabuf *h_buf;
17263 struct hbq_dmabuf *dmabuf = NULL;
17265 /* get the oldest sequence on the rcv list */
17266 h_buf = list_get_first(&vport->rcv_buffer_list,
17267 struct lpfc_dmabuf, list);
17270 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
17271 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
17275 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
17276 * @vport: The vport that the received sequences were sent to.
17278 * This function cleans up all outstanding received sequences. This is called
17279 * by the driver when a link event or user action invalidates all the received
17283 lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
17285 struct lpfc_dmabuf *h_buf, *hnext;
17286 struct lpfc_dmabuf *d_buf, *dnext;
17287 struct hbq_dmabuf *dmabuf = NULL;
17289 /* start with the oldest sequence on the rcv list */
17290 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
17291 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
17292 list_del_init(&dmabuf->hbuf.list);
17293 list_for_each_entry_safe(d_buf, dnext,
17294 &dmabuf->dbuf.list, list) {
17295 list_del_init(&d_buf->list);
17296 lpfc_in_buf_free(vport->phba, d_buf);
17298 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
17303 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
17304 * @vport: The vport that the received sequences were sent to.
17306 * This function determines whether any received sequences have timed out by
17307 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
17308 * indicates that there is at least one timed out sequence this routine will
17309 * go through the received sequences one at a time from most inactive to most
17310 * active to determine which ones need to be cleaned up. Once it has determined
17311 * that a sequence needs to be cleaned up it will simply free up the resources
17312 * without sending an abort.
17315 lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
17317 struct lpfc_dmabuf *h_buf, *hnext;
17318 struct lpfc_dmabuf *d_buf, *dnext;
17319 struct hbq_dmabuf *dmabuf = NULL;
17320 unsigned long timeout;
17321 int abort_count = 0;
17323 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
17324 vport->rcv_buffer_time_stamp);
17325 if (list_empty(&vport->rcv_buffer_list) ||
17326 time_before(jiffies, timeout))
17328 /* start with the oldest sequence on the rcv list */
17329 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
17330 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
17331 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
17332 dmabuf->time_stamp);
17333 if (time_before(jiffies, timeout))
17336 list_del_init(&dmabuf->hbuf.list);
17337 list_for_each_entry_safe(d_buf, dnext,
17338 &dmabuf->dbuf.list, list) {
17339 list_del_init(&d_buf->list);
17340 lpfc_in_buf_free(vport->phba, d_buf);
17342 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
17345 lpfc_update_rcv_time_stamp(vport);
17349 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
17350 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
17352 * This function searches through the existing incomplete sequences that have
17353 * been sent to this @vport. If the frame matches one of the incomplete
17354 * sequences then the dbuf in the @dmabuf is added to the list of frames that
17355 * make up that sequence. If no sequence is found that matches this frame then
17356 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
17357 * This function returns a pointer to the first dmabuf in the sequence list that
17358 * the frame was linked to.
17360 static struct hbq_dmabuf *
17361 lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
17363 struct fc_frame_header *new_hdr;
17364 struct fc_frame_header *temp_hdr;
17365 struct lpfc_dmabuf *d_buf;
17366 struct lpfc_dmabuf *h_buf;
17367 struct hbq_dmabuf *seq_dmabuf = NULL;
17368 struct hbq_dmabuf *temp_dmabuf = NULL;
17371 INIT_LIST_HEAD(&dmabuf->dbuf.list);
17372 dmabuf->time_stamp = jiffies;
17373 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
17375 /* Use the hdr_buf to find the sequence that this frame belongs to */
17376 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
17377 temp_hdr = (struct fc_frame_header *)h_buf->virt;
17378 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
17379 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
17380 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
17382 /* found a pending sequence that matches this frame */
17383 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
17388 * This indicates first frame received for this sequence.
17389 * Queue the buffer on the vport's rcv_buffer_list.
17391 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
17392 lpfc_update_rcv_time_stamp(vport);
17395 temp_hdr = seq_dmabuf->hbuf.virt;
17396 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
17397 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
17398 list_del_init(&seq_dmabuf->hbuf.list);
17399 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
17400 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
17401 lpfc_update_rcv_time_stamp(vport);
17404 /* move this sequence to the tail to indicate a young sequence */
17405 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
17406 seq_dmabuf->time_stamp = jiffies;
17407 lpfc_update_rcv_time_stamp(vport);
17408 if (list_empty(&seq_dmabuf->dbuf.list)) {
17409 temp_hdr = dmabuf->hbuf.virt;
17410 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
17413 /* find the correct place in the sequence to insert this frame */
17414 d_buf = list_entry(seq_dmabuf->dbuf.list.prev, typeof(*d_buf), list);
17416 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
17417 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
17419 * If the frame's sequence count is greater than the frame on
17420 * the list then insert the frame right after this frame
17422 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
17423 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
17424 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
17429 if (&d_buf->list == &seq_dmabuf->dbuf.list)
17431 d_buf = list_entry(d_buf->list.prev, typeof(*d_buf), list);
17440 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
17441 * @vport: pointer to a vitural port
17442 * @dmabuf: pointer to a dmabuf that describes the FC sequence
17444 * This function tries to abort from the partially assembed sequence, described
17445 * by the information from basic abbort @dmabuf. It checks to see whether such
17446 * partially assembled sequence held by the driver. If so, it shall free up all
17447 * the frames from the partially assembled sequence.
17450 * true -- if there is matching partially assembled sequence present and all
17451 * the frames freed with the sequence;
17452 * false -- if there is no matching partially assembled sequence present so
17453 * nothing got aborted in the lower layer driver
17456 lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
17457 struct hbq_dmabuf *dmabuf)
17459 struct fc_frame_header *new_hdr;
17460 struct fc_frame_header *temp_hdr;
17461 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
17462 struct hbq_dmabuf *seq_dmabuf = NULL;
17464 /* Use the hdr_buf to find the sequence that matches this frame */
17465 INIT_LIST_HEAD(&dmabuf->dbuf.list);
17466 INIT_LIST_HEAD(&dmabuf->hbuf.list);
17467 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
17468 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
17469 temp_hdr = (struct fc_frame_header *)h_buf->virt;
17470 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
17471 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
17472 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
17474 /* found a pending sequence that matches this frame */
17475 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
17479 /* Free up all the frames from the partially assembled sequence */
17481 list_for_each_entry_safe(d_buf, n_buf,
17482 &seq_dmabuf->dbuf.list, list) {
17483 list_del_init(&d_buf->list);
17484 lpfc_in_buf_free(vport->phba, d_buf);
17492 * lpfc_sli4_abort_ulp_seq - Abort assembled unsol sequence from ulp
17493 * @vport: pointer to a vitural port
17494 * @dmabuf: pointer to a dmabuf that describes the FC sequence
17496 * This function tries to abort from the assembed sequence from upper level
17497 * protocol, described by the information from basic abbort @dmabuf. It
17498 * checks to see whether such pending context exists at upper level protocol.
17499 * If so, it shall clean up the pending context.
17502 * true -- if there is matching pending context of the sequence cleaned
17504 * false -- if there is no matching pending context of the sequence present
17508 lpfc_sli4_abort_ulp_seq(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
17510 struct lpfc_hba *phba = vport->phba;
17513 /* Accepting abort at ulp with SLI4 only */
17514 if (phba->sli_rev < LPFC_SLI_REV4)
17517 /* Register all caring upper level protocols to attend abort */
17518 handled = lpfc_ct_handle_unsol_abort(phba, dmabuf);
17526 * lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler
17527 * @phba: Pointer to HBA context object.
17528 * @cmd_iocbq: pointer to the command iocbq structure.
17529 * @rsp_iocbq: pointer to the response iocbq structure.
17531 * This function handles the sequence abort response iocb command complete
17532 * event. It properly releases the memory allocated to the sequence abort
17536 lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba *phba,
17537 struct lpfc_iocbq *cmd_iocbq,
17538 struct lpfc_iocbq *rsp_iocbq)
17540 struct lpfc_nodelist *ndlp;
17543 ndlp = (struct lpfc_nodelist *)cmd_iocbq->context1;
17544 lpfc_nlp_put(ndlp);
17545 lpfc_nlp_not_used(ndlp);
17546 lpfc_sli_release_iocbq(phba, cmd_iocbq);
17549 /* Failure means BLS ABORT RSP did not get delivered to remote node*/
17550 if (rsp_iocbq && rsp_iocbq->iocb.ulpStatus)
17551 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17552 "3154 BLS ABORT RSP failed, data: x%x/x%x\n",
17553 rsp_iocbq->iocb.ulpStatus,
17554 rsp_iocbq->iocb.un.ulpWord[4]);
17558 * lpfc_sli4_xri_inrange - check xri is in range of xris owned by driver.
17559 * @phba: Pointer to HBA context object.
17560 * @xri: xri id in transaction.
17562 * This function validates the xri maps to the known range of XRIs allocated an
17563 * used by the driver.
17566 lpfc_sli4_xri_inrange(struct lpfc_hba *phba,
17571 for (i = 0; i < phba->sli4_hba.max_cfg_param.max_xri; i++) {
17572 if (xri == phba->sli4_hba.xri_ids[i])
17579 * lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort
17580 * @phba: Pointer to HBA context object.
17581 * @fc_hdr: pointer to a FC frame header.
17583 * This function sends a basic response to a previous unsol sequence abort
17584 * event after aborting the sequence handling.
17587 lpfc_sli4_seq_abort_rsp(struct lpfc_vport *vport,
17588 struct fc_frame_header *fc_hdr, bool aborted)
17590 struct lpfc_hba *phba = vport->phba;
17591 struct lpfc_iocbq *ctiocb = NULL;
17592 struct lpfc_nodelist *ndlp;
17593 uint16_t oxid, rxid, xri, lxri;
17594 uint32_t sid, fctl;
17598 if (!lpfc_is_link_up(phba))
17601 sid = sli4_sid_from_fc_hdr(fc_hdr);
17602 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
17603 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
17605 ndlp = lpfc_findnode_did(vport, sid);
17607 ndlp = lpfc_nlp_init(vport, sid);
17609 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
17610 "1268 Failed to allocate ndlp for "
17611 "oxid:x%x SID:x%x\n", oxid, sid);
17614 /* Put ndlp onto pport node list */
17615 lpfc_enqueue_node(vport, ndlp);
17616 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
17617 /* re-setup ndlp without removing from node list */
17618 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
17620 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
17621 "3275 Failed to active ndlp found "
17622 "for oxid:x%x SID:x%x\n", oxid, sid);
17627 /* Allocate buffer for rsp iocb */
17628 ctiocb = lpfc_sli_get_iocbq(phba);
17632 /* Extract the F_CTL field from FC_HDR */
17633 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
17635 icmd = &ctiocb->iocb;
17636 icmd->un.xseq64.bdl.bdeSize = 0;
17637 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
17638 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
17639 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
17640 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
17642 /* Fill in the rest of iocb fields */
17643 icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
17644 icmd->ulpBdeCount = 0;
17646 icmd->ulpClass = CLASS3;
17647 icmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
17648 ctiocb->context1 = lpfc_nlp_get(ndlp);
17650 ctiocb->vport = phba->pport;
17651 ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_rsp_cmpl;
17652 ctiocb->sli4_lxritag = NO_XRI;
17653 ctiocb->sli4_xritag = NO_XRI;
17655 if (fctl & FC_FC_EX_CTX)
17656 /* Exchange responder sent the abort so we
17662 lxri = lpfc_sli4_xri_inrange(phba, xri);
17663 if (lxri != NO_XRI)
17664 lpfc_set_rrq_active(phba, ndlp, lxri,
17665 (xri == oxid) ? rxid : oxid, 0);
17666 /* For BA_ABTS from exchange responder, if the logical xri with
17667 * the oxid maps to the FCP XRI range, the port no longer has
17668 * that exchange context, send a BLS_RJT. Override the IOCB for
17671 if ((fctl & FC_FC_EX_CTX) &&
17672 (lxri > lpfc_sli4_get_iocb_cnt(phba))) {
17673 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
17674 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
17675 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
17676 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
17679 /* If BA_ABTS failed to abort a partially assembled receive sequence,
17680 * the driver no longer has that exchange, send a BLS_RJT. Override
17681 * the IOCB for a BA_RJT.
17683 if (aborted == false) {
17684 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
17685 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
17686 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
17687 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
17690 if (fctl & FC_FC_EX_CTX) {
17691 /* ABTS sent by responder to CT exchange, construction
17692 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
17693 * field and RX_ID from ABTS for RX_ID field.
17695 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_RSP);
17697 /* ABTS sent by initiator to CT exchange, construction
17698 * of BA_ACC will need to allocate a new XRI as for the
17701 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_INT);
17703 bf_set(lpfc_abts_rxid, &icmd->un.bls_rsp, rxid);
17704 bf_set(lpfc_abts_oxid, &icmd->un.bls_rsp, oxid);
17706 /* Xmit CT abts response on exchange <xid> */
17707 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
17708 "1200 Send BLS cmd x%x on oxid x%x Data: x%x\n",
17709 icmd->un.xseq64.w5.hcsw.Rctl, oxid, phba->link_state);
17711 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
17712 if (rc == IOCB_ERROR) {
17713 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
17714 "2925 Failed to issue CT ABTS RSP x%x on "
17715 "xri x%x, Data x%x\n",
17716 icmd->un.xseq64.w5.hcsw.Rctl, oxid,
17718 lpfc_nlp_put(ndlp);
17719 ctiocb->context1 = NULL;
17720 lpfc_sli_release_iocbq(phba, ctiocb);
17725 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
17726 * @vport: Pointer to the vport on which this sequence was received
17727 * @dmabuf: pointer to a dmabuf that describes the FC sequence
17729 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
17730 * receive sequence is only partially assembed by the driver, it shall abort
17731 * the partially assembled frames for the sequence. Otherwise, if the
17732 * unsolicited receive sequence has been completely assembled and passed to
17733 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
17734 * unsolicited sequence has been aborted. After that, it will issue a basic
17735 * accept to accept the abort.
17738 lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
17739 struct hbq_dmabuf *dmabuf)
17741 struct lpfc_hba *phba = vport->phba;
17742 struct fc_frame_header fc_hdr;
17746 /* Make a copy of fc_hdr before the dmabuf being released */
17747 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
17748 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
17750 if (fctl & FC_FC_EX_CTX) {
17751 /* ABTS by responder to exchange, no cleanup needed */
17754 /* ABTS by initiator to exchange, need to do cleanup */
17755 aborted = lpfc_sli4_abort_partial_seq(vport, dmabuf);
17756 if (aborted == false)
17757 aborted = lpfc_sli4_abort_ulp_seq(vport, dmabuf);
17759 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17761 if (phba->nvmet_support) {
17762 lpfc_nvmet_rcv_unsol_abort(vport, &fc_hdr);
17766 /* Respond with BA_ACC or BA_RJT accordingly */
17767 lpfc_sli4_seq_abort_rsp(vport, &fc_hdr, aborted);
17771 * lpfc_seq_complete - Indicates if a sequence is complete
17772 * @dmabuf: pointer to a dmabuf that describes the FC sequence
17774 * This function checks the sequence, starting with the frame described by
17775 * @dmabuf, to see if all the frames associated with this sequence are present.
17776 * the frames associated with this sequence are linked to the @dmabuf using the
17777 * dbuf list. This function looks for two major things. 1) That the first frame
17778 * has a sequence count of zero. 2) There is a frame with last frame of sequence
17779 * set. 3) That there are no holes in the sequence count. The function will
17780 * return 1 when the sequence is complete, otherwise it will return 0.
17783 lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
17785 struct fc_frame_header *hdr;
17786 struct lpfc_dmabuf *d_buf;
17787 struct hbq_dmabuf *seq_dmabuf;
17791 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
17792 /* make sure first fame of sequence has a sequence count of zero */
17793 if (hdr->fh_seq_cnt != seq_count)
17795 fctl = (hdr->fh_f_ctl[0] << 16 |
17796 hdr->fh_f_ctl[1] << 8 |
17798 /* If last frame of sequence we can return success. */
17799 if (fctl & FC_FC_END_SEQ)
17801 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
17802 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
17803 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
17804 /* If there is a hole in the sequence count then fail. */
17805 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
17807 fctl = (hdr->fh_f_ctl[0] << 16 |
17808 hdr->fh_f_ctl[1] << 8 |
17810 /* If last frame of sequence we can return success. */
17811 if (fctl & FC_FC_END_SEQ)
17818 * lpfc_prep_seq - Prep sequence for ULP processing
17819 * @vport: Pointer to the vport on which this sequence was received
17820 * @dmabuf: pointer to a dmabuf that describes the FC sequence
17822 * This function takes a sequence, described by a list of frames, and creates
17823 * a list of iocbq structures to describe the sequence. This iocbq list will be
17824 * used to issue to the generic unsolicited sequence handler. This routine
17825 * returns a pointer to the first iocbq in the list. If the function is unable
17826 * to allocate an iocbq then it throw out the received frames that were not
17827 * able to be described and return a pointer to the first iocbq. If unable to
17828 * allocate any iocbqs (including the first) this function will return NULL.
17830 static struct lpfc_iocbq *
17831 lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
17833 struct hbq_dmabuf *hbq_buf;
17834 struct lpfc_dmabuf *d_buf, *n_buf;
17835 struct lpfc_iocbq *first_iocbq, *iocbq;
17836 struct fc_frame_header *fc_hdr;
17838 uint32_t len, tot_len;
17839 struct ulp_bde64 *pbde;
17841 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
17842 /* remove from receive buffer list */
17843 list_del_init(&seq_dmabuf->hbuf.list);
17844 lpfc_update_rcv_time_stamp(vport);
17845 /* get the Remote Port's SID */
17846 sid = sli4_sid_from_fc_hdr(fc_hdr);
17848 /* Get an iocbq struct to fill in. */
17849 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
17851 /* Initialize the first IOCB. */
17852 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
17853 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
17854 first_iocbq->vport = vport;
17856 /* Check FC Header to see what TYPE of frame we are rcv'ing */
17857 if (sli4_type_from_fc_hdr(fc_hdr) == FC_TYPE_ELS) {
17858 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_ELS64_CX;
17859 first_iocbq->iocb.un.rcvels.parmRo =
17860 sli4_did_from_fc_hdr(fc_hdr);
17861 first_iocbq->iocb.ulpPU = PARM_NPIV_DID;
17863 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
17864 first_iocbq->iocb.ulpContext = NO_XRI;
17865 first_iocbq->iocb.unsli3.rcvsli3.ox_id =
17866 be16_to_cpu(fc_hdr->fh_ox_id);
17867 /* iocbq is prepped for internal consumption. Physical vpi. */
17868 first_iocbq->iocb.unsli3.rcvsli3.vpi =
17869 vport->phba->vpi_ids[vport->vpi];
17870 /* put the first buffer into the first IOCBq */
17871 tot_len = bf_get(lpfc_rcqe_length,
17872 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
17874 first_iocbq->context2 = &seq_dmabuf->dbuf;
17875 first_iocbq->context3 = NULL;
17876 first_iocbq->iocb.ulpBdeCount = 1;
17877 if (tot_len > LPFC_DATA_BUF_SIZE)
17878 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
17879 LPFC_DATA_BUF_SIZE;
17881 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize = tot_len;
17883 first_iocbq->iocb.un.rcvels.remoteID = sid;
17885 first_iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
17887 iocbq = first_iocbq;
17889 * Each IOCBq can have two Buffers assigned, so go through the list
17890 * of buffers for this sequence and save two buffers in each IOCBq
17892 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
17894 lpfc_in_buf_free(vport->phba, d_buf);
17897 if (!iocbq->context3) {
17898 iocbq->context3 = d_buf;
17899 iocbq->iocb.ulpBdeCount++;
17900 /* We need to get the size out of the right CQE */
17901 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
17902 len = bf_get(lpfc_rcqe_length,
17903 &hbq_buf->cq_event.cqe.rcqe_cmpl);
17904 pbde = (struct ulp_bde64 *)
17905 &iocbq->iocb.unsli3.sli3Words[4];
17906 if (len > LPFC_DATA_BUF_SIZE)
17907 pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
17909 pbde->tus.f.bdeSize = len;
17911 iocbq->iocb.unsli3.rcvsli3.acc_len += len;
17914 iocbq = lpfc_sli_get_iocbq(vport->phba);
17917 first_iocbq->iocb.ulpStatus =
17918 IOSTAT_FCP_RSP_ERROR;
17919 first_iocbq->iocb.un.ulpWord[4] =
17920 IOERR_NO_RESOURCES;
17922 lpfc_in_buf_free(vport->phba, d_buf);
17925 /* We need to get the size out of the right CQE */
17926 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
17927 len = bf_get(lpfc_rcqe_length,
17928 &hbq_buf->cq_event.cqe.rcqe_cmpl);
17929 iocbq->context2 = d_buf;
17930 iocbq->context3 = NULL;
17931 iocbq->iocb.ulpBdeCount = 1;
17932 if (len > LPFC_DATA_BUF_SIZE)
17933 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
17934 LPFC_DATA_BUF_SIZE;
17936 iocbq->iocb.un.cont64[0].tus.f.bdeSize = len;
17939 iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
17941 iocbq->iocb.un.rcvels.remoteID = sid;
17942 list_add_tail(&iocbq->list, &first_iocbq->list);
17945 /* Free the sequence's header buffer */
17947 lpfc_in_buf_free(vport->phba, &seq_dmabuf->dbuf);
17949 return first_iocbq;
17953 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
17954 struct hbq_dmabuf *seq_dmabuf)
17956 struct fc_frame_header *fc_hdr;
17957 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
17958 struct lpfc_hba *phba = vport->phba;
17960 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
17961 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
17963 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17964 "2707 Ring %d handler: Failed to allocate "
17965 "iocb Rctl x%x Type x%x received\n",
17967 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
17970 if (!lpfc_complete_unsol_iocb(phba,
17971 phba->sli4_hba.els_wq->pring,
17972 iocbq, fc_hdr->fh_r_ctl,
17974 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17975 "2540 Ring %d handler: unexpected Rctl "
17976 "x%x Type x%x received\n",
17978 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
17980 /* Free iocb created in lpfc_prep_seq */
17981 list_for_each_entry_safe(curr_iocb, next_iocb,
17982 &iocbq->list, list) {
17983 list_del_init(&curr_iocb->list);
17984 lpfc_sli_release_iocbq(phba, curr_iocb);
17986 lpfc_sli_release_iocbq(phba, iocbq);
17990 lpfc_sli4_mds_loopback_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
17991 struct lpfc_iocbq *rspiocb)
17993 struct lpfc_dmabuf *pcmd = cmdiocb->context2;
17995 if (pcmd && pcmd->virt)
17996 dma_pool_free(phba->lpfc_drb_pool, pcmd->virt, pcmd->phys);
17998 lpfc_sli_release_iocbq(phba, cmdiocb);
17999 lpfc_drain_txq(phba);
18003 lpfc_sli4_handle_mds_loopback(struct lpfc_vport *vport,
18004 struct hbq_dmabuf *dmabuf)
18006 struct fc_frame_header *fc_hdr;
18007 struct lpfc_hba *phba = vport->phba;
18008 struct lpfc_iocbq *iocbq = NULL;
18009 union lpfc_wqe *wqe;
18010 struct lpfc_dmabuf *pcmd = NULL;
18011 uint32_t frame_len;
18013 unsigned long iflags;
18015 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
18016 frame_len = bf_get(lpfc_rcqe_length, &dmabuf->cq_event.cqe.rcqe_cmpl);
18018 /* Send the received frame back */
18019 iocbq = lpfc_sli_get_iocbq(phba);
18021 /* Queue cq event and wakeup worker thread to process it */
18022 spin_lock_irqsave(&phba->hbalock, iflags);
18023 list_add_tail(&dmabuf->cq_event.list,
18024 &phba->sli4_hba.sp_queue_event);
18025 phba->hba_flag |= HBA_SP_QUEUE_EVT;
18026 spin_unlock_irqrestore(&phba->hbalock, iflags);
18027 lpfc_worker_wake_up(phba);
18031 /* Allocate buffer for command payload */
18032 pcmd = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
18034 pcmd->virt = dma_pool_alloc(phba->lpfc_drb_pool, GFP_KERNEL,
18036 if (!pcmd || !pcmd->virt)
18039 INIT_LIST_HEAD(&pcmd->list);
18041 /* copyin the payload */
18042 memcpy(pcmd->virt, dmabuf->dbuf.virt, frame_len);
18044 /* fill in BDE's for command */
18045 iocbq->iocb.un.xseq64.bdl.addrHigh = putPaddrHigh(pcmd->phys);
18046 iocbq->iocb.un.xseq64.bdl.addrLow = putPaddrLow(pcmd->phys);
18047 iocbq->iocb.un.xseq64.bdl.bdeFlags = BUFF_TYPE_BDE_64;
18048 iocbq->iocb.un.xseq64.bdl.bdeSize = frame_len;
18050 iocbq->context2 = pcmd;
18051 iocbq->vport = vport;
18052 iocbq->iocb_flag &= ~LPFC_FIP_ELS_ID_MASK;
18053 iocbq->iocb_flag |= LPFC_USE_FCPWQIDX;
18056 * Setup rest of the iocb as though it were a WQE
18057 * Build the SEND_FRAME WQE
18059 wqe = (union lpfc_wqe *)&iocbq->iocb;
18061 wqe->send_frame.frame_len = frame_len;
18062 wqe->send_frame.fc_hdr_wd0 = be32_to_cpu(*((uint32_t *)fc_hdr));
18063 wqe->send_frame.fc_hdr_wd1 = be32_to_cpu(*((uint32_t *)fc_hdr + 1));
18064 wqe->send_frame.fc_hdr_wd2 = be32_to_cpu(*((uint32_t *)fc_hdr + 2));
18065 wqe->send_frame.fc_hdr_wd3 = be32_to_cpu(*((uint32_t *)fc_hdr + 3));
18066 wqe->send_frame.fc_hdr_wd4 = be32_to_cpu(*((uint32_t *)fc_hdr + 4));
18067 wqe->send_frame.fc_hdr_wd5 = be32_to_cpu(*((uint32_t *)fc_hdr + 5));
18069 iocbq->iocb.ulpCommand = CMD_SEND_FRAME;
18070 iocbq->iocb.ulpLe = 1;
18071 iocbq->iocb_cmpl = lpfc_sli4_mds_loopback_cmpl;
18072 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocbq, 0);
18073 if (rc == IOCB_ERROR)
18076 lpfc_in_buf_free(phba, &dmabuf->dbuf);
18080 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
18081 "2023 Unable to process MDS loopback frame\n");
18082 if (pcmd && pcmd->virt)
18083 dma_pool_free(phba->lpfc_drb_pool, pcmd->virt, pcmd->phys);
18086 lpfc_sli_release_iocbq(phba, iocbq);
18087 lpfc_in_buf_free(phba, &dmabuf->dbuf);
18091 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
18092 * @phba: Pointer to HBA context object.
18094 * This function is called with no lock held. This function processes all
18095 * the received buffers and gives it to upper layers when a received buffer
18096 * indicates that it is the final frame in the sequence. The interrupt
18097 * service routine processes received buffers at interrupt contexts.
18098 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
18099 * appropriate receive function when the final frame in a sequence is received.
18102 lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
18103 struct hbq_dmabuf *dmabuf)
18105 struct hbq_dmabuf *seq_dmabuf;
18106 struct fc_frame_header *fc_hdr;
18107 struct lpfc_vport *vport;
18111 /* Process each received buffer */
18112 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
18114 if (fc_hdr->fh_r_ctl == FC_RCTL_MDS_DIAGS ||
18115 fc_hdr->fh_r_ctl == FC_RCTL_DD_UNSOL_DATA) {
18116 vport = phba->pport;
18117 /* Handle MDS Loopback frames */
18118 lpfc_sli4_handle_mds_loopback(vport, dmabuf);
18122 /* check to see if this a valid type of frame */
18123 if (lpfc_fc_frame_check(phba, fc_hdr)) {
18124 lpfc_in_buf_free(phba, &dmabuf->dbuf);
18128 if ((bf_get(lpfc_cqe_code,
18129 &dmabuf->cq_event.cqe.rcqe_cmpl) == CQE_CODE_RECEIVE_V1))
18130 fcfi = bf_get(lpfc_rcqe_fcf_id_v1,
18131 &dmabuf->cq_event.cqe.rcqe_cmpl);
18133 fcfi = bf_get(lpfc_rcqe_fcf_id,
18134 &dmabuf->cq_event.cqe.rcqe_cmpl);
18136 if (fc_hdr->fh_r_ctl == 0xF4 && fc_hdr->fh_type == 0xFF) {
18137 vport = phba->pport;
18138 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
18139 "2023 MDS Loopback %d bytes\n",
18140 bf_get(lpfc_rcqe_length,
18141 &dmabuf->cq_event.cqe.rcqe_cmpl));
18142 /* Handle MDS Loopback frames */
18143 lpfc_sli4_handle_mds_loopback(vport, dmabuf);
18147 /* d_id this frame is directed to */
18148 did = sli4_did_from_fc_hdr(fc_hdr);
18150 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi, did);
18152 /* throw out the frame */
18153 lpfc_in_buf_free(phba, &dmabuf->dbuf);
18157 /* vport is registered unless we rcv a FLOGI directed to Fabric_DID */
18158 if (!(vport->vpi_state & LPFC_VPI_REGISTERED) &&
18159 (did != Fabric_DID)) {
18161 * Throw out the frame if we are not pt2pt.
18162 * The pt2pt protocol allows for discovery frames
18163 * to be received without a registered VPI.
18165 if (!(vport->fc_flag & FC_PT2PT) ||
18166 (phba->link_state == LPFC_HBA_READY)) {
18167 lpfc_in_buf_free(phba, &dmabuf->dbuf);
18172 /* Handle the basic abort sequence (BA_ABTS) event */
18173 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
18174 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
18178 /* Link this frame */
18179 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
18181 /* unable to add frame to vport - throw it out */
18182 lpfc_in_buf_free(phba, &dmabuf->dbuf);
18185 /* If not last frame in sequence continue processing frames. */
18186 if (!lpfc_seq_complete(seq_dmabuf))
18189 /* Send the complete sequence to the upper layer protocol */
18190 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
18194 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
18195 * @phba: pointer to lpfc hba data structure.
18197 * This routine is invoked to post rpi header templates to the
18198 * HBA consistent with the SLI-4 interface spec. This routine
18199 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
18200 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
18202 * This routine does not require any locks. It's usage is expected
18203 * to be driver load or reset recovery when the driver is
18208 * -EIO - The mailbox failed to complete successfully.
18209 * When this error occurs, the driver is not guaranteed
18210 * to have any rpi regions posted to the device and
18211 * must either attempt to repost the regions or take a
18215 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
18217 struct lpfc_rpi_hdr *rpi_page;
18221 /* SLI4 ports that support extents do not require RPI headers. */
18222 if (!phba->sli4_hba.rpi_hdrs_in_use)
18224 if (phba->sli4_hba.extents_in_use)
18227 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
18229 * Assign the rpi headers a physical rpi only if the driver
18230 * has not initialized those resources. A port reset only
18231 * needs the headers posted.
18233 if (bf_get(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags) !=
18235 rpi_page->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
18237 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
18238 if (rc != MBX_SUCCESS) {
18239 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18240 "2008 Error %d posting all rpi "
18248 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags,
18249 LPFC_RPI_RSRC_RDY);
18254 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
18255 * @phba: pointer to lpfc hba data structure.
18256 * @rpi_page: pointer to the rpi memory region.
18258 * This routine is invoked to post a single rpi header to the
18259 * HBA consistent with the SLI-4 interface spec. This memory region
18260 * maps up to 64 rpi context regions.
18264 * -ENOMEM - No available memory
18265 * -EIO - The mailbox failed to complete successfully.
18268 lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
18270 LPFC_MBOXQ_t *mboxq;
18271 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
18273 uint32_t shdr_status, shdr_add_status;
18274 union lpfc_sli4_cfg_shdr *shdr;
18276 /* SLI4 ports that support extents do not require RPI headers. */
18277 if (!phba->sli4_hba.rpi_hdrs_in_use)
18279 if (phba->sli4_hba.extents_in_use)
18282 /* The port is notified of the header region via a mailbox command. */
18283 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18285 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18286 "2001 Unable to allocate memory for issuing "
18287 "SLI_CONFIG_SPECIAL mailbox command\n");
18291 /* Post all rpi memory regions to the port. */
18292 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
18293 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
18294 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
18295 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
18296 sizeof(struct lpfc_sli4_cfg_mhdr),
18297 LPFC_SLI4_MBX_EMBED);
18300 /* Post the physical rpi to the port for this rpi header. */
18301 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
18302 rpi_page->start_rpi);
18303 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
18304 hdr_tmpl, rpi_page->page_count);
18306 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
18307 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
18308 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
18309 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
18310 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
18311 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
18312 if (rc != MBX_TIMEOUT)
18313 mempool_free(mboxq, phba->mbox_mem_pool);
18314 if (shdr_status || shdr_add_status || rc) {
18315 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18316 "2514 POST_RPI_HDR mailbox failed with "
18317 "status x%x add_status x%x, mbx status x%x\n",
18318 shdr_status, shdr_add_status, rc);
18322 * The next_rpi stores the next logical module-64 rpi value used
18323 * to post physical rpis in subsequent rpi postings.
18325 spin_lock_irq(&phba->hbalock);
18326 phba->sli4_hba.next_rpi = rpi_page->next_rpi;
18327 spin_unlock_irq(&phba->hbalock);
18333 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
18334 * @phba: pointer to lpfc hba data structure.
18336 * This routine is invoked to post rpi header templates to the
18337 * HBA consistent with the SLI-4 interface spec. This routine
18338 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
18339 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
18342 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
18343 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
18346 lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
18349 uint16_t max_rpi, rpi_limit;
18350 uint16_t rpi_remaining, lrpi = 0;
18351 struct lpfc_rpi_hdr *rpi_hdr;
18352 unsigned long iflag;
18355 * Fetch the next logical rpi. Because this index is logical,
18356 * the driver starts at 0 each time.
18358 spin_lock_irqsave(&phba->hbalock, iflag);
18359 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
18360 rpi_limit = phba->sli4_hba.next_rpi;
18362 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, 0);
18363 if (rpi >= rpi_limit)
18364 rpi = LPFC_RPI_ALLOC_ERROR;
18366 set_bit(rpi, phba->sli4_hba.rpi_bmask);
18367 phba->sli4_hba.max_cfg_param.rpi_used++;
18368 phba->sli4_hba.rpi_count++;
18370 lpfc_printf_log(phba, KERN_INFO,
18371 LOG_NODE | LOG_DISCOVERY,
18372 "0001 Allocated rpi:x%x max:x%x lim:x%x\n",
18373 (int) rpi, max_rpi, rpi_limit);
18376 * Don't try to allocate more rpi header regions if the device limit
18377 * has been exhausted.
18379 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
18380 (phba->sli4_hba.rpi_count >= max_rpi)) {
18381 spin_unlock_irqrestore(&phba->hbalock, iflag);
18386 * RPI header postings are not required for SLI4 ports capable of
18389 if (!phba->sli4_hba.rpi_hdrs_in_use) {
18390 spin_unlock_irqrestore(&phba->hbalock, iflag);
18395 * If the driver is running low on rpi resources, allocate another
18396 * page now. Note that the next_rpi value is used because
18397 * it represents how many are actually in use whereas max_rpi notes
18398 * how many are supported max by the device.
18400 rpi_remaining = phba->sli4_hba.next_rpi - phba->sli4_hba.rpi_count;
18401 spin_unlock_irqrestore(&phba->hbalock, iflag);
18402 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
18403 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
18405 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18406 "2002 Error Could not grow rpi "
18409 lrpi = rpi_hdr->start_rpi;
18410 rpi_hdr->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
18411 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
18419 * lpfc_sli4_free_rpi - Release an rpi for reuse.
18420 * @phba: pointer to lpfc hba data structure.
18422 * This routine is invoked to release an rpi to the pool of
18423 * available rpis maintained by the driver.
18426 __lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
18429 * if the rpi value indicates a prior unreg has already
18430 * been done, skip the unreg.
18432 if (rpi == LPFC_RPI_ALLOC_ERROR)
18435 if (test_and_clear_bit(rpi, phba->sli4_hba.rpi_bmask)) {
18436 phba->sli4_hba.rpi_count--;
18437 phba->sli4_hba.max_cfg_param.rpi_used--;
18439 lpfc_printf_log(phba, KERN_INFO,
18440 LOG_NODE | LOG_DISCOVERY,
18441 "2016 rpi %x not inuse\n",
18447 * lpfc_sli4_free_rpi - Release an rpi for reuse.
18448 * @phba: pointer to lpfc hba data structure.
18450 * This routine is invoked to release an rpi to the pool of
18451 * available rpis maintained by the driver.
18454 lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
18456 spin_lock_irq(&phba->hbalock);
18457 __lpfc_sli4_free_rpi(phba, rpi);
18458 spin_unlock_irq(&phba->hbalock);
18462 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
18463 * @phba: pointer to lpfc hba data structure.
18465 * This routine is invoked to remove the memory region that
18466 * provided rpi via a bitmask.
18469 lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
18471 kfree(phba->sli4_hba.rpi_bmask);
18472 kfree(phba->sli4_hba.rpi_ids);
18473 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
18477 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
18478 * @phba: pointer to lpfc hba data structure.
18480 * This routine is invoked to remove the memory region that
18481 * provided rpi via a bitmask.
18484 lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp,
18485 void (*cmpl)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *arg)
18487 LPFC_MBOXQ_t *mboxq;
18488 struct lpfc_hba *phba = ndlp->phba;
18491 /* The port is notified of the header region via a mailbox command. */
18492 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18496 /* Post all rpi memory regions to the port. */
18497 lpfc_resume_rpi(mboxq, ndlp);
18499 mboxq->mbox_cmpl = cmpl;
18500 mboxq->ctx_buf = arg;
18501 mboxq->ctx_ndlp = ndlp;
18503 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
18504 mboxq->vport = ndlp->vport;
18505 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
18506 if (rc == MBX_NOT_FINISHED) {
18507 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18508 "2010 Resume RPI Mailbox failed "
18509 "status %d, mbxStatus x%x\n", rc,
18510 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
18511 mempool_free(mboxq, phba->mbox_mem_pool);
18518 * lpfc_sli4_init_vpi - Initialize a vpi with the port
18519 * @vport: Pointer to the vport for which the vpi is being initialized
18521 * This routine is invoked to activate a vpi with the port.
18525 * -Evalue otherwise
18528 lpfc_sli4_init_vpi(struct lpfc_vport *vport)
18530 LPFC_MBOXQ_t *mboxq;
18532 int retval = MBX_SUCCESS;
18534 struct lpfc_hba *phba = vport->phba;
18535 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18538 lpfc_init_vpi(phba, mboxq, vport->vpi);
18539 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
18540 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
18541 if (rc != MBX_SUCCESS) {
18542 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
18543 "2022 INIT VPI Mailbox failed "
18544 "status %d, mbxStatus x%x\n", rc,
18545 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
18548 if (rc != MBX_TIMEOUT)
18549 mempool_free(mboxq, vport->phba->mbox_mem_pool);
18555 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
18556 * @phba: pointer to lpfc hba data structure.
18557 * @mboxq: Pointer to mailbox object.
18559 * This routine is invoked to manually add a single FCF record. The caller
18560 * must pass a completely initialized FCF_Record. This routine takes
18561 * care of the nonembedded mailbox operations.
18564 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
18567 union lpfc_sli4_cfg_shdr *shdr;
18568 uint32_t shdr_status, shdr_add_status;
18570 virt_addr = mboxq->sge_array->addr[0];
18571 /* The IOCTL status is embedded in the mailbox subheader. */
18572 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
18573 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
18574 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
18576 if ((shdr_status || shdr_add_status) &&
18577 (shdr_status != STATUS_FCF_IN_USE))
18578 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18579 "2558 ADD_FCF_RECORD mailbox failed with "
18580 "status x%x add_status x%x\n",
18581 shdr_status, shdr_add_status);
18583 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18587 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
18588 * @phba: pointer to lpfc hba data structure.
18589 * @fcf_record: pointer to the initialized fcf record to add.
18591 * This routine is invoked to manually add a single FCF record. The caller
18592 * must pass a completely initialized FCF_Record. This routine takes
18593 * care of the nonembedded mailbox operations.
18596 lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
18599 LPFC_MBOXQ_t *mboxq;
18602 struct lpfc_mbx_sge sge;
18603 uint32_t alloc_len, req_len;
18606 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18608 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18609 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
18613 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
18616 /* Allocate DMA memory and set up the non-embedded mailbox command */
18617 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
18618 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
18619 req_len, LPFC_SLI4_MBX_NEMBED);
18620 if (alloc_len < req_len) {
18621 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18622 "2523 Allocated DMA memory size (x%x) is "
18623 "less than the requested DMA memory "
18624 "size (x%x)\n", alloc_len, req_len);
18625 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18630 * Get the first SGE entry from the non-embedded DMA memory. This
18631 * routine only uses a single SGE.
18633 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
18634 virt_addr = mboxq->sge_array->addr[0];
18636 * Configure the FCF record for FCFI 0. This is the driver's
18637 * hardcoded default and gets used in nonFIP mode.
18639 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
18640 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
18641 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
18644 * Copy the fcf_index and the FCF Record Data. The data starts after
18645 * the FCoE header plus word10. The data copy needs to be endian
18648 bytep += sizeof(uint32_t);
18649 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
18650 mboxq->vport = phba->pport;
18651 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
18652 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
18653 if (rc == MBX_NOT_FINISHED) {
18654 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18655 "2515 ADD_FCF_RECORD mailbox failed with "
18656 "status 0x%x\n", rc);
18657 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18666 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
18667 * @phba: pointer to lpfc hba data structure.
18668 * @fcf_record: pointer to the fcf record to write the default data.
18669 * @fcf_index: FCF table entry index.
18671 * This routine is invoked to build the driver's default FCF record. The
18672 * values used are hardcoded. This routine handles memory initialization.
18676 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
18677 struct fcf_record *fcf_record,
18678 uint16_t fcf_index)
18680 memset(fcf_record, 0, sizeof(struct fcf_record));
18681 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
18682 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
18683 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
18684 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
18685 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
18686 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
18687 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
18688 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
18689 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
18690 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
18691 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
18692 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
18693 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
18694 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
18695 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
18696 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
18697 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
18698 /* Set the VLAN bit map */
18699 if (phba->valid_vlan) {
18700 fcf_record->vlan_bitmap[phba->vlan_id / 8]
18701 = 1 << (phba->vlan_id % 8);
18706 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
18707 * @phba: pointer to lpfc hba data structure.
18708 * @fcf_index: FCF table entry offset.
18710 * This routine is invoked to scan the entire FCF table by reading FCF
18711 * record and processing it one at a time starting from the @fcf_index
18712 * for initial FCF discovery or fast FCF failover rediscovery.
18714 * Return 0 if the mailbox command is submitted successfully, none 0
18718 lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
18721 LPFC_MBOXQ_t *mboxq;
18723 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
18724 phba->fcoe_cvl_eventtag_attn = phba->fcoe_cvl_eventtag;
18725 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18727 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18728 "2000 Failed to allocate mbox for "
18731 goto fail_fcf_scan;
18733 /* Construct the read FCF record mailbox command */
18734 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
18737 goto fail_fcf_scan;
18739 /* Issue the mailbox command asynchronously */
18740 mboxq->vport = phba->pport;
18741 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
18743 spin_lock_irq(&phba->hbalock);
18744 phba->hba_flag |= FCF_TS_INPROG;
18745 spin_unlock_irq(&phba->hbalock);
18747 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
18748 if (rc == MBX_NOT_FINISHED)
18751 /* Reset eligible FCF count for new scan */
18752 if (fcf_index == LPFC_FCOE_FCF_GET_FIRST)
18753 phba->fcf.eligible_fcf_cnt = 0;
18759 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18760 /* FCF scan failed, clear FCF_TS_INPROG flag */
18761 spin_lock_irq(&phba->hbalock);
18762 phba->hba_flag &= ~FCF_TS_INPROG;
18763 spin_unlock_irq(&phba->hbalock);
18769 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
18770 * @phba: pointer to lpfc hba data structure.
18771 * @fcf_index: FCF table entry offset.
18773 * This routine is invoked to read an FCF record indicated by @fcf_index
18774 * and to use it for FLOGI roundrobin FCF failover.
18776 * Return 0 if the mailbox command is submitted successfully, none 0
18780 lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
18783 LPFC_MBOXQ_t *mboxq;
18785 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18787 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
18788 "2763 Failed to allocate mbox for "
18791 goto fail_fcf_read;
18793 /* Construct the read FCF record mailbox command */
18794 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
18797 goto fail_fcf_read;
18799 /* Issue the mailbox command asynchronously */
18800 mboxq->vport = phba->pport;
18801 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
18802 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
18803 if (rc == MBX_NOT_FINISHED)
18809 if (error && mboxq)
18810 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18815 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
18816 * @phba: pointer to lpfc hba data structure.
18817 * @fcf_index: FCF table entry offset.
18819 * This routine is invoked to read an FCF record indicated by @fcf_index to
18820 * determine whether it's eligible for FLOGI roundrobin failover list.
18822 * Return 0 if the mailbox command is submitted successfully, none 0
18826 lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
18829 LPFC_MBOXQ_t *mboxq;
18831 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18833 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
18834 "2758 Failed to allocate mbox for "
18837 goto fail_fcf_read;
18839 /* Construct the read FCF record mailbox command */
18840 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
18843 goto fail_fcf_read;
18845 /* Issue the mailbox command asynchronously */
18846 mboxq->vport = phba->pport;
18847 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
18848 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
18849 if (rc == MBX_NOT_FINISHED)
18855 if (error && mboxq)
18856 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18861 * lpfc_check_next_fcf_pri_level
18862 * phba pointer to the lpfc_hba struct for this port.
18863 * This routine is called from the lpfc_sli4_fcf_rr_next_index_get
18864 * routine when the rr_bmask is empty. The FCF indecies are put into the
18865 * rr_bmask based on their priority level. Starting from the highest priority
18866 * to the lowest. The most likely FCF candidate will be in the highest
18867 * priority group. When this routine is called it searches the fcf_pri list for
18868 * next lowest priority group and repopulates the rr_bmask with only those
18871 * 1=success 0=failure
18874 lpfc_check_next_fcf_pri_level(struct lpfc_hba *phba)
18876 uint16_t next_fcf_pri;
18877 uint16_t last_index;
18878 struct lpfc_fcf_pri *fcf_pri;
18882 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
18883 LPFC_SLI4_FCF_TBL_INDX_MAX);
18884 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
18885 "3060 Last IDX %d\n", last_index);
18887 /* Verify the priority list has 2 or more entries */
18888 spin_lock_irq(&phba->hbalock);
18889 if (list_empty(&phba->fcf.fcf_pri_list) ||
18890 list_is_singular(&phba->fcf.fcf_pri_list)) {
18891 spin_unlock_irq(&phba->hbalock);
18892 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
18893 "3061 Last IDX %d\n", last_index);
18894 return 0; /* Empty rr list */
18896 spin_unlock_irq(&phba->hbalock);
18900 * Clear the rr_bmask and set all of the bits that are at this
18903 memset(phba->fcf.fcf_rr_bmask, 0,
18904 sizeof(*phba->fcf.fcf_rr_bmask));
18905 spin_lock_irq(&phba->hbalock);
18906 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
18907 if (fcf_pri->fcf_rec.flag & LPFC_FCF_FLOGI_FAILED)
18910 * the 1st priority that has not FLOGI failed
18911 * will be the highest.
18914 next_fcf_pri = fcf_pri->fcf_rec.priority;
18915 spin_unlock_irq(&phba->hbalock);
18916 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
18917 rc = lpfc_sli4_fcf_rr_index_set(phba,
18918 fcf_pri->fcf_rec.fcf_index);
18922 spin_lock_irq(&phba->hbalock);
18925 * if next_fcf_pri was not set above and the list is not empty then
18926 * we have failed flogis on all of them. So reset flogi failed
18927 * and start at the beginning.
18929 if (!next_fcf_pri && !list_empty(&phba->fcf.fcf_pri_list)) {
18930 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
18931 fcf_pri->fcf_rec.flag &= ~LPFC_FCF_FLOGI_FAILED;
18933 * the 1st priority that has not FLOGI failed
18934 * will be the highest.
18937 next_fcf_pri = fcf_pri->fcf_rec.priority;
18938 spin_unlock_irq(&phba->hbalock);
18939 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
18940 rc = lpfc_sli4_fcf_rr_index_set(phba,
18941 fcf_pri->fcf_rec.fcf_index);
18945 spin_lock_irq(&phba->hbalock);
18949 spin_unlock_irq(&phba->hbalock);
18954 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
18955 * @phba: pointer to lpfc hba data structure.
18957 * This routine is to get the next eligible FCF record index in a round
18958 * robin fashion. If the next eligible FCF record index equals to the
18959 * initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
18960 * shall be returned, otherwise, the next eligible FCF record's index
18961 * shall be returned.
18964 lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
18966 uint16_t next_fcf_index;
18969 /* Search start from next bit of currently registered FCF index */
18970 next_fcf_index = phba->fcf.current_rec.fcf_indx;
18973 /* Determine the next fcf index to check */
18974 next_fcf_index = (next_fcf_index + 1) % LPFC_SLI4_FCF_TBL_INDX_MAX;
18975 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
18976 LPFC_SLI4_FCF_TBL_INDX_MAX,
18979 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
18980 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
18982 * If we have wrapped then we need to clear the bits that
18983 * have been tested so that we can detect when we should
18984 * change the priority level.
18986 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
18987 LPFC_SLI4_FCF_TBL_INDX_MAX, 0);
18991 /* Check roundrobin failover list empty condition */
18992 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX ||
18993 next_fcf_index == phba->fcf.current_rec.fcf_indx) {
18995 * If next fcf index is not found check if there are lower
18996 * Priority level fcf's in the fcf_priority list.
18997 * Set up the rr_bmask with all of the avaiable fcf bits
18998 * at that level and continue the selection process.
19000 if (lpfc_check_next_fcf_pri_level(phba))
19001 goto initial_priority;
19002 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
19003 "2844 No roundrobin failover FCF available\n");
19005 return LPFC_FCOE_FCF_NEXT_NONE;
19008 if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX &&
19009 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag &
19010 LPFC_FCF_FLOGI_FAILED) {
19011 if (list_is_singular(&phba->fcf.fcf_pri_list))
19012 return LPFC_FCOE_FCF_NEXT_NONE;
19014 goto next_priority;
19017 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
19018 "2845 Get next roundrobin failover FCF (x%x)\n",
19021 return next_fcf_index;
19025 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
19026 * @phba: pointer to lpfc hba data structure.
19028 * This routine sets the FCF record index in to the eligible bmask for
19029 * roundrobin failover search. It checks to make sure that the index
19030 * does not go beyond the range of the driver allocated bmask dimension
19031 * before setting the bit.
19033 * Returns 0 if the index bit successfully set, otherwise, it returns
19037 lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
19039 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
19040 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
19041 "2610 FCF (x%x) reached driver's book "
19042 "keeping dimension:x%x\n",
19043 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
19046 /* Set the eligible FCF record index bmask */
19047 set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
19049 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
19050 "2790 Set FCF (x%x) to roundrobin FCF failover "
19051 "bmask\n", fcf_index);
19057 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
19058 * @phba: pointer to lpfc hba data structure.
19060 * This routine clears the FCF record index from the eligible bmask for
19061 * roundrobin failover search. It checks to make sure that the index
19062 * does not go beyond the range of the driver allocated bmask dimension
19063 * before clearing the bit.
19066 lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
19068 struct lpfc_fcf_pri *fcf_pri, *fcf_pri_next;
19069 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
19070 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
19071 "2762 FCF (x%x) reached driver's book "
19072 "keeping dimension:x%x\n",
19073 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
19076 /* Clear the eligible FCF record index bmask */
19077 spin_lock_irq(&phba->hbalock);
19078 list_for_each_entry_safe(fcf_pri, fcf_pri_next, &phba->fcf.fcf_pri_list,
19080 if (fcf_pri->fcf_rec.fcf_index == fcf_index) {
19081 list_del_init(&fcf_pri->list);
19085 spin_unlock_irq(&phba->hbalock);
19086 clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
19088 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
19089 "2791 Clear FCF (x%x) from roundrobin failover "
19090 "bmask\n", fcf_index);
19094 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
19095 * @phba: pointer to lpfc hba data structure.
19097 * This routine is the completion routine for the rediscover FCF table mailbox
19098 * command. If the mailbox command returned failure, it will try to stop the
19099 * FCF rediscover wait timer.
19102 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
19104 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
19105 uint32_t shdr_status, shdr_add_status;
19107 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
19109 shdr_status = bf_get(lpfc_mbox_hdr_status,
19110 &redisc_fcf->header.cfg_shdr.response);
19111 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
19112 &redisc_fcf->header.cfg_shdr.response);
19113 if (shdr_status || shdr_add_status) {
19114 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
19115 "2746 Requesting for FCF rediscovery failed "
19116 "status x%x add_status x%x\n",
19117 shdr_status, shdr_add_status);
19118 if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
19119 spin_lock_irq(&phba->hbalock);
19120 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
19121 spin_unlock_irq(&phba->hbalock);
19123 * CVL event triggered FCF rediscover request failed,
19124 * last resort to re-try current registered FCF entry.
19126 lpfc_retry_pport_discovery(phba);
19128 spin_lock_irq(&phba->hbalock);
19129 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
19130 spin_unlock_irq(&phba->hbalock);
19132 * DEAD FCF event triggered FCF rediscover request
19133 * failed, last resort to fail over as a link down
19134 * to FCF registration.
19136 lpfc_sli4_fcf_dead_failthrough(phba);
19139 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
19140 "2775 Start FCF rediscover quiescent timer\n");
19142 * Start FCF rediscovery wait timer for pending FCF
19143 * before rescan FCF record table.
19145 lpfc_fcf_redisc_wait_start_timer(phba);
19148 mempool_free(mbox, phba->mbox_mem_pool);
19152 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
19153 * @phba: pointer to lpfc hba data structure.
19155 * This routine is invoked to request for rediscovery of the entire FCF table
19159 lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
19161 LPFC_MBOXQ_t *mbox;
19162 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
19165 /* Cancel retry delay timers to all vports before FCF rediscover */
19166 lpfc_cancel_all_vport_retry_delay_timer(phba);
19168 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
19170 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
19171 "2745 Failed to allocate mbox for "
19172 "requesting FCF rediscover.\n");
19176 length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
19177 sizeof(struct lpfc_sli4_cfg_mhdr));
19178 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
19179 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
19180 length, LPFC_SLI4_MBX_EMBED);
19182 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
19183 /* Set count to 0 for invalidating the entire FCF database */
19184 bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
19186 /* Issue the mailbox command asynchronously */
19187 mbox->vport = phba->pport;
19188 mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
19189 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
19191 if (rc == MBX_NOT_FINISHED) {
19192 mempool_free(mbox, phba->mbox_mem_pool);
19199 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
19200 * @phba: pointer to lpfc hba data structure.
19202 * This function is the failover routine as a last resort to the FCF DEAD
19203 * event when driver failed to perform fast FCF failover.
19206 lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
19208 uint32_t link_state;
19211 * Last resort as FCF DEAD event failover will treat this as
19212 * a link down, but save the link state because we don't want
19213 * it to be changed to Link Down unless it is already down.
19215 link_state = phba->link_state;
19216 lpfc_linkdown(phba);
19217 phba->link_state = link_state;
19219 /* Unregister FCF if no devices connected to it */
19220 lpfc_unregister_unused_fcf(phba);
19224 * lpfc_sli_get_config_region23 - Get sli3 port region 23 data.
19225 * @phba: pointer to lpfc hba data structure.
19226 * @rgn23_data: pointer to configure region 23 data.
19228 * This function gets SLI3 port configure region 23 data through memory dump
19229 * mailbox command. When it successfully retrieves data, the size of the data
19230 * will be returned, otherwise, 0 will be returned.
19233 lpfc_sli_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
19235 LPFC_MBOXQ_t *pmb = NULL;
19237 uint32_t offset = 0;
19243 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
19245 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
19246 "2600 failed to allocate mailbox memory\n");
19252 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
19253 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
19255 if (rc != MBX_SUCCESS) {
19256 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
19257 "2601 failed to read config "
19258 "region 23, rc 0x%x Status 0x%x\n",
19259 rc, mb->mbxStatus);
19260 mb->un.varDmp.word_cnt = 0;
19263 * dump mem may return a zero when finished or we got a
19264 * mailbox error, either way we are done.
19266 if (mb->un.varDmp.word_cnt == 0)
19268 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
19269 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
19271 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
19272 rgn23_data + offset,
19273 mb->un.varDmp.word_cnt);
19274 offset += mb->un.varDmp.word_cnt;
19275 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
19277 mempool_free(pmb, phba->mbox_mem_pool);
19282 * lpfc_sli4_get_config_region23 - Get sli4 port region 23 data.
19283 * @phba: pointer to lpfc hba data structure.
19284 * @rgn23_data: pointer to configure region 23 data.
19286 * This function gets SLI4 port configure region 23 data through memory dump
19287 * mailbox command. When it successfully retrieves data, the size of the data
19288 * will be returned, otherwise, 0 will be returned.
19291 lpfc_sli4_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
19293 LPFC_MBOXQ_t *mboxq = NULL;
19294 struct lpfc_dmabuf *mp = NULL;
19295 struct lpfc_mqe *mqe;
19296 uint32_t data_length = 0;
19302 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
19304 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
19305 "3105 failed to allocate mailbox memory\n");
19309 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq))
19311 mqe = &mboxq->u.mqe;
19312 mp = (struct lpfc_dmabuf *)mboxq->ctx_buf;
19313 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
19316 data_length = mqe->un.mb_words[5];
19317 if (data_length == 0)
19319 if (data_length > DMP_RGN23_SIZE) {
19323 lpfc_sli_pcimem_bcopy((char *)mp->virt, rgn23_data, data_length);
19325 mempool_free(mboxq, phba->mbox_mem_pool);
19327 lpfc_mbuf_free(phba, mp->virt, mp->phys);
19330 return data_length;
19334 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
19335 * @phba: pointer to lpfc hba data structure.
19337 * This function read region 23 and parse TLV for port status to
19338 * decide if the user disaled the port. If the TLV indicates the
19339 * port is disabled, the hba_flag is set accordingly.
19342 lpfc_sli_read_link_ste(struct lpfc_hba *phba)
19344 uint8_t *rgn23_data = NULL;
19345 uint32_t if_type, data_size, sub_tlv_len, tlv_offset;
19346 uint32_t offset = 0;
19348 /* Get adapter Region 23 data */
19349 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
19353 if (phba->sli_rev < LPFC_SLI_REV4)
19354 data_size = lpfc_sli_get_config_region23(phba, rgn23_data);
19356 if_type = bf_get(lpfc_sli_intf_if_type,
19357 &phba->sli4_hba.sli_intf);
19358 if (if_type == LPFC_SLI_INTF_IF_TYPE_0)
19360 data_size = lpfc_sli4_get_config_region23(phba, rgn23_data);
19366 /* Check the region signature first */
19367 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
19368 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
19369 "2619 Config region 23 has bad signature\n");
19374 /* Check the data structure version */
19375 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
19376 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
19377 "2620 Config region 23 has bad version\n");
19382 /* Parse TLV entries in the region */
19383 while (offset < data_size) {
19384 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
19387 * If the TLV is not driver specific TLV or driver id is
19388 * not linux driver id, skip the record.
19390 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
19391 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
19392 (rgn23_data[offset + 3] != 0)) {
19393 offset += rgn23_data[offset + 1] * 4 + 4;
19397 /* Driver found a driver specific TLV in the config region */
19398 sub_tlv_len = rgn23_data[offset + 1] * 4;
19403 * Search for configured port state sub-TLV.
19405 while ((offset < data_size) &&
19406 (tlv_offset < sub_tlv_len)) {
19407 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
19412 if (rgn23_data[offset] != PORT_STE_TYPE) {
19413 offset += rgn23_data[offset + 1] * 4 + 4;
19414 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
19418 /* This HBA contains PORT_STE configured */
19419 if (!rgn23_data[offset + 2])
19420 phba->hba_flag |= LINK_DISABLED;
19432 * lpfc_wr_object - write an object to the firmware
19433 * @phba: HBA structure that indicates port to create a queue on.
19434 * @dmabuf_list: list of dmabufs to write to the port.
19435 * @size: the total byte value of the objects to write to the port.
19436 * @offset: the current offset to be used to start the transfer.
19438 * This routine will create a wr_object mailbox command to send to the port.
19439 * the mailbox command will be constructed using the dma buffers described in
19440 * @dmabuf_list to create a list of BDEs. This routine will fill in as many
19441 * BDEs that the imbedded mailbox can support. The @offset variable will be
19442 * used to indicate the starting offset of the transfer and will also return
19443 * the offset after the write object mailbox has completed. @size is used to
19444 * determine the end of the object and whether the eof bit should be set.
19446 * Return 0 is successful and offset will contain the the new offset to use
19447 * for the next write.
19448 * Return negative value for error cases.
19451 lpfc_wr_object(struct lpfc_hba *phba, struct list_head *dmabuf_list,
19452 uint32_t size, uint32_t *offset)
19454 struct lpfc_mbx_wr_object *wr_object;
19455 LPFC_MBOXQ_t *mbox;
19457 uint32_t shdr_status, shdr_add_status, shdr_change_status, shdr_csf;
19459 struct lpfc_dmabuf *dmabuf;
19460 uint32_t written = 0;
19461 bool check_change_status = false;
19463 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
19467 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
19468 LPFC_MBOX_OPCODE_WRITE_OBJECT,
19469 sizeof(struct lpfc_mbx_wr_object) -
19470 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
19472 wr_object = (struct lpfc_mbx_wr_object *)&mbox->u.mqe.un.wr_object;
19473 wr_object->u.request.write_offset = *offset;
19474 sprintf((uint8_t *)wr_object->u.request.object_name, "/");
19475 wr_object->u.request.object_name[0] =
19476 cpu_to_le32(wr_object->u.request.object_name[0]);
19477 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 0);
19478 list_for_each_entry(dmabuf, dmabuf_list, list) {
19479 if (i >= LPFC_MBX_WR_CONFIG_MAX_BDE || written >= size)
19481 wr_object->u.request.bde[i].addrLow = putPaddrLow(dmabuf->phys);
19482 wr_object->u.request.bde[i].addrHigh =
19483 putPaddrHigh(dmabuf->phys);
19484 if (written + SLI4_PAGE_SIZE >= size) {
19485 wr_object->u.request.bde[i].tus.f.bdeSize =
19487 written += (size - written);
19488 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 1);
19489 bf_set(lpfc_wr_object_eas, &wr_object->u.request, 1);
19490 check_change_status = true;
19492 wr_object->u.request.bde[i].tus.f.bdeSize =
19494 written += SLI4_PAGE_SIZE;
19498 wr_object->u.request.bde_count = i;
19499 bf_set(lpfc_wr_object_write_length, &wr_object->u.request, written);
19500 if (!phba->sli4_hba.intr_enable)
19501 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
19503 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
19504 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
19506 /* The IOCTL status is embedded in the mailbox subheader. */
19507 shdr_status = bf_get(lpfc_mbox_hdr_status,
19508 &wr_object->header.cfg_shdr.response);
19509 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
19510 &wr_object->header.cfg_shdr.response);
19511 if (check_change_status) {
19512 shdr_change_status = bf_get(lpfc_wr_object_change_status,
19513 &wr_object->u.response);
19515 if (shdr_change_status == LPFC_CHANGE_STATUS_FW_RESET ||
19516 shdr_change_status == LPFC_CHANGE_STATUS_PORT_MIGRATION) {
19517 shdr_csf = bf_get(lpfc_wr_object_csf,
19518 &wr_object->u.response);
19520 shdr_change_status =
19521 LPFC_CHANGE_STATUS_PCI_RESET;
19524 switch (shdr_change_status) {
19525 case (LPFC_CHANGE_STATUS_PHYS_DEV_RESET):
19526 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
19527 "3198 Firmware write complete: System "
19528 "reboot required to instantiate\n");
19530 case (LPFC_CHANGE_STATUS_FW_RESET):
19531 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
19532 "3199 Firmware write complete: Firmware"
19533 " reset required to instantiate\n");
19535 case (LPFC_CHANGE_STATUS_PORT_MIGRATION):
19536 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
19537 "3200 Firmware write complete: Port "
19538 "Migration or PCI Reset required to "
19541 case (LPFC_CHANGE_STATUS_PCI_RESET):
19542 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
19543 "3201 Firmware write complete: PCI "
19544 "Reset required to instantiate\n");
19550 if (rc != MBX_TIMEOUT)
19551 mempool_free(mbox, phba->mbox_mem_pool);
19552 if (shdr_status || shdr_add_status || rc) {
19553 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
19554 "3025 Write Object mailbox failed with "
19555 "status x%x add_status x%x, mbx status x%x\n",
19556 shdr_status, shdr_add_status, rc);
19558 *offset = shdr_add_status;
19560 *offset += wr_object->u.response.actual_write_length;
19565 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
19566 * @vport: pointer to vport data structure.
19568 * This function iterate through the mailboxq and clean up all REG_LOGIN
19569 * and REG_VPI mailbox commands associated with the vport. This function
19570 * is called when driver want to restart discovery of the vport due to
19571 * a Clear Virtual Link event.
19574 lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
19576 struct lpfc_hba *phba = vport->phba;
19577 LPFC_MBOXQ_t *mb, *nextmb;
19578 struct lpfc_dmabuf *mp;
19579 struct lpfc_nodelist *ndlp;
19580 struct lpfc_nodelist *act_mbx_ndlp = NULL;
19581 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
19582 LIST_HEAD(mbox_cmd_list);
19583 uint8_t restart_loop;
19585 /* Clean up internally queued mailbox commands with the vport */
19586 spin_lock_irq(&phba->hbalock);
19587 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
19588 if (mb->vport != vport)
19591 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
19592 (mb->u.mb.mbxCommand != MBX_REG_VPI))
19595 list_del(&mb->list);
19596 list_add_tail(&mb->list, &mbox_cmd_list);
19598 /* Clean up active mailbox command with the vport */
19599 mb = phba->sli.mbox_active;
19600 if (mb && (mb->vport == vport)) {
19601 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
19602 (mb->u.mb.mbxCommand == MBX_REG_VPI))
19603 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
19604 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
19605 act_mbx_ndlp = (struct lpfc_nodelist *)mb->ctx_ndlp;
19606 /* Put reference count for delayed processing */
19607 act_mbx_ndlp = lpfc_nlp_get(act_mbx_ndlp);
19608 /* Unregister the RPI when mailbox complete */
19609 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
19612 /* Cleanup any mailbox completions which are not yet processed */
19615 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
19617 * If this mailox is already processed or it is
19618 * for another vport ignore it.
19620 if ((mb->vport != vport) ||
19621 (mb->mbox_flag & LPFC_MBX_IMED_UNREG))
19624 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
19625 (mb->u.mb.mbxCommand != MBX_REG_VPI))
19628 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
19629 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
19630 ndlp = (struct lpfc_nodelist *)mb->ctx_ndlp;
19631 /* Unregister the RPI when mailbox complete */
19632 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
19634 spin_unlock_irq(&phba->hbalock);
19635 spin_lock(shost->host_lock);
19636 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
19637 spin_unlock(shost->host_lock);
19638 spin_lock_irq(&phba->hbalock);
19642 } while (restart_loop);
19644 spin_unlock_irq(&phba->hbalock);
19646 /* Release the cleaned-up mailbox commands */
19647 while (!list_empty(&mbox_cmd_list)) {
19648 list_remove_head(&mbox_cmd_list, mb, LPFC_MBOXQ_t, list);
19649 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
19650 mp = (struct lpfc_dmabuf *)(mb->ctx_buf);
19652 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
19655 mb->ctx_buf = NULL;
19656 ndlp = (struct lpfc_nodelist *)mb->ctx_ndlp;
19657 mb->ctx_ndlp = NULL;
19659 spin_lock(shost->host_lock);
19660 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
19661 spin_unlock(shost->host_lock);
19662 lpfc_nlp_put(ndlp);
19665 mempool_free(mb, phba->mbox_mem_pool);
19668 /* Release the ndlp with the cleaned-up active mailbox command */
19669 if (act_mbx_ndlp) {
19670 spin_lock(shost->host_lock);
19671 act_mbx_ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
19672 spin_unlock(shost->host_lock);
19673 lpfc_nlp_put(act_mbx_ndlp);
19678 * lpfc_drain_txq - Drain the txq
19679 * @phba: Pointer to HBA context object.
19681 * This function attempt to submit IOCBs on the txq
19682 * to the adapter. For SLI4 adapters, the txq contains
19683 * ELS IOCBs that have been deferred because the there
19684 * are no SGLs. This congestion can occur with large
19685 * vport counts during node discovery.
19689 lpfc_drain_txq(struct lpfc_hba *phba)
19691 LIST_HEAD(completions);
19692 struct lpfc_sli_ring *pring;
19693 struct lpfc_iocbq *piocbq = NULL;
19694 unsigned long iflags = 0;
19695 char *fail_msg = NULL;
19696 struct lpfc_sglq *sglq;
19697 union lpfc_wqe128 wqe;
19698 uint32_t txq_cnt = 0;
19699 struct lpfc_queue *wq;
19701 if (phba->link_flag & LS_MDS_LOOPBACK) {
19702 /* MDS WQE are posted only to first WQ*/
19703 wq = phba->sli4_hba.hdwq[0].io_wq;
19708 wq = phba->sli4_hba.els_wq;
19711 pring = lpfc_phba_elsring(phba);
19714 if (unlikely(!pring) || list_empty(&pring->txq))
19717 spin_lock_irqsave(&pring->ring_lock, iflags);
19718 list_for_each_entry(piocbq, &pring->txq, list) {
19722 if (txq_cnt > pring->txq_max)
19723 pring->txq_max = txq_cnt;
19725 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19727 while (!list_empty(&pring->txq)) {
19728 spin_lock_irqsave(&pring->ring_lock, iflags);
19730 piocbq = lpfc_sli_ringtx_get(phba, pring);
19732 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19733 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
19734 "2823 txq empty and txq_cnt is %d\n ",
19738 sglq = __lpfc_sli_get_els_sglq(phba, piocbq);
19740 __lpfc_sli_ringtx_put(phba, pring, piocbq);
19741 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19746 /* The xri and iocb resources secured,
19747 * attempt to issue request
19749 piocbq->sli4_lxritag = sglq->sli4_lxritag;
19750 piocbq->sli4_xritag = sglq->sli4_xritag;
19751 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocbq, sglq))
19752 fail_msg = "to convert bpl to sgl";
19753 else if (lpfc_sli4_iocb2wqe(phba, piocbq, &wqe))
19754 fail_msg = "to convert iocb to wqe";
19755 else if (lpfc_sli4_wq_put(wq, &wqe))
19756 fail_msg = " - Wq is full";
19758 lpfc_sli_ringtxcmpl_put(phba, pring, piocbq);
19761 /* Failed means we can't issue and need to cancel */
19762 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
19763 "2822 IOCB failed %s iotag 0x%x "
19766 piocbq->iotag, piocbq->sli4_xritag);
19767 list_add_tail(&piocbq->list, &completions);
19769 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19772 /* Cancel all the IOCBs that cannot be issued */
19773 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
19774 IOERR_SLI_ABORTED);
19780 * lpfc_wqe_bpl2sgl - Convert the bpl/bde to a sgl.
19781 * @phba: Pointer to HBA context object.
19782 * @pwqe: Pointer to command WQE.
19783 * @sglq: Pointer to the scatter gather queue object.
19785 * This routine converts the bpl or bde that is in the WQE
19786 * to a sgl list for the sli4 hardware. The physical address
19787 * of the bpl/bde is converted back to a virtual address.
19788 * If the WQE contains a BPL then the list of BDE's is
19789 * converted to sli4_sge's. If the WQE contains a single
19790 * BDE then it is converted to a single sli_sge.
19791 * The WQE is still in cpu endianness so the contents of
19792 * the bpl can be used without byte swapping.
19794 * Returns valid XRI = Success, NO_XRI = Failure.
19797 lpfc_wqe_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeq,
19798 struct lpfc_sglq *sglq)
19800 uint16_t xritag = NO_XRI;
19801 struct ulp_bde64 *bpl = NULL;
19802 struct ulp_bde64 bde;
19803 struct sli4_sge *sgl = NULL;
19804 struct lpfc_dmabuf *dmabuf;
19805 union lpfc_wqe128 *wqe;
19808 uint32_t offset = 0; /* accumulated offset in the sg request list */
19809 int inbound = 0; /* number of sg reply entries inbound from firmware */
19812 if (!pwqeq || !sglq)
19815 sgl = (struct sli4_sge *)sglq->sgl;
19817 pwqeq->iocb.ulpIoTag = pwqeq->iotag;
19819 cmd = bf_get(wqe_cmnd, &wqe->generic.wqe_com);
19820 if (cmd == CMD_XMIT_BLS_RSP64_WQE)
19821 return sglq->sli4_xritag;
19822 numBdes = pwqeq->rsvd2;
19824 /* The addrHigh and addrLow fields within the WQE
19825 * have not been byteswapped yet so there is no
19826 * need to swap them back.
19828 if (pwqeq->context3)
19829 dmabuf = (struct lpfc_dmabuf *)pwqeq->context3;
19833 bpl = (struct ulp_bde64 *)dmabuf->virt;
19837 for (i = 0; i < numBdes; i++) {
19838 /* Should already be byte swapped. */
19839 sgl->addr_hi = bpl->addrHigh;
19840 sgl->addr_lo = bpl->addrLow;
19842 sgl->word2 = le32_to_cpu(sgl->word2);
19843 if ((i+1) == numBdes)
19844 bf_set(lpfc_sli4_sge_last, sgl, 1);
19846 bf_set(lpfc_sli4_sge_last, sgl, 0);
19847 /* swap the size field back to the cpu so we
19848 * can assign it to the sgl.
19850 bde.tus.w = le32_to_cpu(bpl->tus.w);
19851 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
19852 /* The offsets in the sgl need to be accumulated
19853 * separately for the request and reply lists.
19854 * The request is always first, the reply follows.
19857 case CMD_GEN_REQUEST64_WQE:
19858 /* add up the reply sg entries */
19859 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
19861 /* first inbound? reset the offset */
19864 bf_set(lpfc_sli4_sge_offset, sgl, offset);
19865 bf_set(lpfc_sli4_sge_type, sgl,
19866 LPFC_SGE_TYPE_DATA);
19867 offset += bde.tus.f.bdeSize;
19869 case CMD_FCP_TRSP64_WQE:
19870 bf_set(lpfc_sli4_sge_offset, sgl, 0);
19871 bf_set(lpfc_sli4_sge_type, sgl,
19872 LPFC_SGE_TYPE_DATA);
19874 case CMD_FCP_TSEND64_WQE:
19875 case CMD_FCP_TRECEIVE64_WQE:
19876 bf_set(lpfc_sli4_sge_type, sgl,
19877 bpl->tus.f.bdeFlags);
19881 offset += bde.tus.f.bdeSize;
19882 bf_set(lpfc_sli4_sge_offset, sgl, offset);
19885 sgl->word2 = cpu_to_le32(sgl->word2);
19889 } else if (wqe->gen_req.bde.tus.f.bdeFlags == BUFF_TYPE_BDE_64) {
19890 /* The addrHigh and addrLow fields of the BDE have not
19891 * been byteswapped yet so they need to be swapped
19892 * before putting them in the sgl.
19894 sgl->addr_hi = cpu_to_le32(wqe->gen_req.bde.addrHigh);
19895 sgl->addr_lo = cpu_to_le32(wqe->gen_req.bde.addrLow);
19896 sgl->word2 = le32_to_cpu(sgl->word2);
19897 bf_set(lpfc_sli4_sge_last, sgl, 1);
19898 sgl->word2 = cpu_to_le32(sgl->word2);
19899 sgl->sge_len = cpu_to_le32(wqe->gen_req.bde.tus.f.bdeSize);
19901 return sglq->sli4_xritag;
19905 * lpfc_sli4_issue_wqe - Issue an SLI4 Work Queue Entry (WQE)
19906 * @phba: Pointer to HBA context object.
19907 * @ring_number: Base sli ring number
19908 * @pwqe: Pointer to command WQE.
19911 lpfc_sli4_issue_wqe(struct lpfc_hba *phba, struct lpfc_sli4_hdw_queue *qp,
19912 struct lpfc_iocbq *pwqe)
19914 union lpfc_wqe128 *wqe = &pwqe->wqe;
19915 struct lpfc_nvmet_rcv_ctx *ctxp;
19916 struct lpfc_queue *wq;
19917 struct lpfc_sglq *sglq;
19918 struct lpfc_sli_ring *pring;
19919 unsigned long iflags;
19922 /* NVME_LS and NVME_LS ABTS requests. */
19923 if (pwqe->iocb_flag & LPFC_IO_NVME_LS) {
19924 pring = phba->sli4_hba.nvmels_wq->pring;
19925 lpfc_qp_spin_lock_irqsave(&pring->ring_lock, iflags,
19927 sglq = __lpfc_sli_get_els_sglq(phba, pwqe);
19929 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19932 pwqe->sli4_lxritag = sglq->sli4_lxritag;
19933 pwqe->sli4_xritag = sglq->sli4_xritag;
19934 if (lpfc_wqe_bpl2sgl(phba, pwqe, sglq) == NO_XRI) {
19935 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19938 bf_set(wqe_xri_tag, &pwqe->wqe.xmit_bls_rsp.wqe_com,
19939 pwqe->sli4_xritag);
19940 ret = lpfc_sli4_wq_put(phba->sli4_hba.nvmels_wq, wqe);
19942 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19946 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
19947 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19949 lpfc_sli4_poll_eq(qp->hba_eq, LPFC_POLL_FASTPATH);
19953 /* NVME_FCREQ and NVME_ABTS requests */
19954 if (pwqe->iocb_flag & LPFC_IO_NVME) {
19955 /* Get the IO distribution (hba_wqidx) for WQ assignment. */
19959 bf_set(wqe_cqid, &wqe->generic.wqe_com, qp->io_cq_map);
19961 lpfc_qp_spin_lock_irqsave(&pring->ring_lock, iflags,
19963 ret = lpfc_sli4_wq_put(wq, wqe);
19965 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19968 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
19969 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19971 lpfc_sli4_poll_eq(qp->hba_eq, LPFC_POLL_FASTPATH);
19975 /* NVMET requests */
19976 if (pwqe->iocb_flag & LPFC_IO_NVMET) {
19977 /* Get the IO distribution (hba_wqidx) for WQ assignment. */
19981 ctxp = pwqe->context2;
19982 sglq = ctxp->ctxbuf->sglq;
19983 if (pwqe->sli4_xritag == NO_XRI) {
19984 pwqe->sli4_lxritag = sglq->sli4_lxritag;
19985 pwqe->sli4_xritag = sglq->sli4_xritag;
19987 bf_set(wqe_xri_tag, &pwqe->wqe.xmit_bls_rsp.wqe_com,
19988 pwqe->sli4_xritag);
19989 bf_set(wqe_cqid, &wqe->generic.wqe_com, qp->io_cq_map);
19991 lpfc_qp_spin_lock_irqsave(&pring->ring_lock, iflags,
19993 ret = lpfc_sli4_wq_put(wq, wqe);
19995 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19998 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
19999 spin_unlock_irqrestore(&pring->ring_lock, iflags);
20001 lpfc_sli4_poll_eq(qp->hba_eq, LPFC_POLL_FASTPATH);
20007 #ifdef LPFC_MXP_STAT
20009 * lpfc_snapshot_mxp - Snapshot pbl, pvt and busy count
20010 * @phba: pointer to lpfc hba data structure.
20011 * @hwqid: belong to which HWQ.
20013 * The purpose of this routine is to take a snapshot of pbl, pvt and busy count
20014 * 15 seconds after a test case is running.
20016 * The user should call lpfc_debugfs_multixripools_write before running a test
20017 * case to clear stat_snapshot_taken. Then the user starts a test case. During
20018 * test case is running, stat_snapshot_taken is incremented by 1 every time when
20019 * this routine is called from heartbeat timer. When stat_snapshot_taken is
20020 * equal to LPFC_MXP_SNAPSHOT_TAKEN, a snapshot is taken.
20022 void lpfc_snapshot_mxp(struct lpfc_hba *phba, u32 hwqid)
20024 struct lpfc_sli4_hdw_queue *qp;
20025 struct lpfc_multixri_pool *multixri_pool;
20026 struct lpfc_pvt_pool *pvt_pool;
20027 struct lpfc_pbl_pool *pbl_pool;
20030 qp = &phba->sli4_hba.hdwq[hwqid];
20031 multixri_pool = qp->p_multixri_pool;
20032 if (!multixri_pool)
20035 if (multixri_pool->stat_snapshot_taken == LPFC_MXP_SNAPSHOT_TAKEN) {
20036 pvt_pool = &qp->p_multixri_pool->pvt_pool;
20037 pbl_pool = &qp->p_multixri_pool->pbl_pool;
20038 txcmplq_cnt = qp->io_wq->pring->txcmplq_cnt;
20040 multixri_pool->stat_pbl_count = pbl_pool->count;
20041 multixri_pool->stat_pvt_count = pvt_pool->count;
20042 multixri_pool->stat_busy_count = txcmplq_cnt;
20045 multixri_pool->stat_snapshot_taken++;
20050 * lpfc_adjust_pvt_pool_count - Adjust private pool count
20051 * @phba: pointer to lpfc hba data structure.
20052 * @hwqid: belong to which HWQ.
20054 * This routine moves some XRIs from private to public pool when private pool
20057 void lpfc_adjust_pvt_pool_count(struct lpfc_hba *phba, u32 hwqid)
20059 struct lpfc_multixri_pool *multixri_pool;
20061 u32 prev_io_req_count;
20063 multixri_pool = phba->sli4_hba.hdwq[hwqid].p_multixri_pool;
20064 if (!multixri_pool)
20066 io_req_count = multixri_pool->io_req_count;
20067 prev_io_req_count = multixri_pool->prev_io_req_count;
20069 if (prev_io_req_count != io_req_count) {
20070 /* Private pool is busy */
20071 multixri_pool->prev_io_req_count = io_req_count;
20073 /* Private pool is not busy.
20074 * Move XRIs from private to public pool.
20076 lpfc_move_xri_pvt_to_pbl(phba, hwqid);
20081 * lpfc_adjust_high_watermark - Adjust high watermark
20082 * @phba: pointer to lpfc hba data structure.
20083 * @hwqid: belong to which HWQ.
20085 * This routine sets high watermark as number of outstanding XRIs,
20086 * but make sure the new value is between xri_limit/2 and xri_limit.
20088 void lpfc_adjust_high_watermark(struct lpfc_hba *phba, u32 hwqid)
20096 struct lpfc_multixri_pool *multixri_pool;
20097 struct lpfc_sli4_hdw_queue *qp;
20099 qp = &phba->sli4_hba.hdwq[hwqid];
20100 multixri_pool = qp->p_multixri_pool;
20101 if (!multixri_pool)
20103 xri_limit = multixri_pool->xri_limit;
20105 watermark_max = xri_limit;
20106 watermark_min = xri_limit / 2;
20108 txcmplq_cnt = qp->io_wq->pring->txcmplq_cnt;
20109 abts_io_bufs = qp->abts_scsi_io_bufs;
20110 abts_io_bufs += qp->abts_nvme_io_bufs;
20112 new_watermark = txcmplq_cnt + abts_io_bufs;
20113 new_watermark = min(watermark_max, new_watermark);
20114 new_watermark = max(watermark_min, new_watermark);
20115 multixri_pool->pvt_pool.high_watermark = new_watermark;
20117 #ifdef LPFC_MXP_STAT
20118 multixri_pool->stat_max_hwm = max(multixri_pool->stat_max_hwm,
20124 * lpfc_move_xri_pvt_to_pbl - Move some XRIs from private to public pool
20125 * @phba: pointer to lpfc hba data structure.
20126 * @hwqid: belong to which HWQ.
20128 * This routine is called from hearbeat timer when pvt_pool is idle.
20129 * All free XRIs are moved from private to public pool on hwqid with 2 steps.
20130 * The first step moves (all - low_watermark) amount of XRIs.
20131 * The second step moves the rest of XRIs.
20133 void lpfc_move_xri_pvt_to_pbl(struct lpfc_hba *phba, u32 hwqid)
20135 struct lpfc_pbl_pool *pbl_pool;
20136 struct lpfc_pvt_pool *pvt_pool;
20137 struct lpfc_sli4_hdw_queue *qp;
20138 struct lpfc_io_buf *lpfc_ncmd;
20139 struct lpfc_io_buf *lpfc_ncmd_next;
20140 unsigned long iflag;
20141 struct list_head tmp_list;
20144 qp = &phba->sli4_hba.hdwq[hwqid];
20145 pbl_pool = &qp->p_multixri_pool->pbl_pool;
20146 pvt_pool = &qp->p_multixri_pool->pvt_pool;
20149 lpfc_qp_spin_lock_irqsave(&pbl_pool->lock, iflag, qp, mv_to_pub_pool);
20150 lpfc_qp_spin_lock(&pvt_pool->lock, qp, mv_from_pvt_pool);
20152 if (pvt_pool->count > pvt_pool->low_watermark) {
20153 /* Step 1: move (all - low_watermark) from pvt_pool
20157 /* Move low watermark of bufs from pvt_pool to tmp_list */
20158 INIT_LIST_HEAD(&tmp_list);
20159 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
20160 &pvt_pool->list, list) {
20161 list_move_tail(&lpfc_ncmd->list, &tmp_list);
20163 if (tmp_count >= pvt_pool->low_watermark)
20167 /* Move all bufs from pvt_pool to pbl_pool */
20168 list_splice_init(&pvt_pool->list, &pbl_pool->list);
20170 /* Move all bufs from tmp_list to pvt_pool */
20171 list_splice(&tmp_list, &pvt_pool->list);
20173 pbl_pool->count += (pvt_pool->count - tmp_count);
20174 pvt_pool->count = tmp_count;
20176 /* Step 2: move the rest from pvt_pool to pbl_pool */
20177 list_splice_init(&pvt_pool->list, &pbl_pool->list);
20178 pbl_pool->count += pvt_pool->count;
20179 pvt_pool->count = 0;
20182 spin_unlock(&pvt_pool->lock);
20183 spin_unlock_irqrestore(&pbl_pool->lock, iflag);
20187 * _lpfc_move_xri_pbl_to_pvt - Move some XRIs from public to private pool
20188 * @phba: pointer to lpfc hba data structure
20189 * @pbl_pool: specified public free XRI pool
20190 * @pvt_pool: specified private free XRI pool
20191 * @count: number of XRIs to move
20193 * This routine tries to move some free common bufs from the specified pbl_pool
20194 * to the specified pvt_pool. It might move less than count XRIs if there's not
20195 * enough in public pool.
20198 * true - if XRIs are successfully moved from the specified pbl_pool to the
20199 * specified pvt_pool
20200 * false - if the specified pbl_pool is empty or locked by someone else
20203 _lpfc_move_xri_pbl_to_pvt(struct lpfc_hba *phba, struct lpfc_sli4_hdw_queue *qp,
20204 struct lpfc_pbl_pool *pbl_pool,
20205 struct lpfc_pvt_pool *pvt_pool, u32 count)
20207 struct lpfc_io_buf *lpfc_ncmd;
20208 struct lpfc_io_buf *lpfc_ncmd_next;
20209 unsigned long iflag;
20212 ret = spin_trylock_irqsave(&pbl_pool->lock, iflag);
20214 if (pbl_pool->count) {
20215 /* Move a batch of XRIs from public to private pool */
20216 lpfc_qp_spin_lock(&pvt_pool->lock, qp, mv_to_pvt_pool);
20217 list_for_each_entry_safe(lpfc_ncmd,
20221 list_move_tail(&lpfc_ncmd->list,
20230 spin_unlock(&pvt_pool->lock);
20231 spin_unlock_irqrestore(&pbl_pool->lock, iflag);
20234 spin_unlock_irqrestore(&pbl_pool->lock, iflag);
20241 * lpfc_move_xri_pbl_to_pvt - Move some XRIs from public to private pool
20242 * @phba: pointer to lpfc hba data structure.
20243 * @hwqid: belong to which HWQ.
20244 * @count: number of XRIs to move
20246 * This routine tries to find some free common bufs in one of public pools with
20247 * Round Robin method. The search always starts from local hwqid, then the next
20248 * HWQ which was found last time (rrb_next_hwqid). Once a public pool is found,
20249 * a batch of free common bufs are moved to private pool on hwqid.
20250 * It might move less than count XRIs if there's not enough in public pool.
20252 void lpfc_move_xri_pbl_to_pvt(struct lpfc_hba *phba, u32 hwqid, u32 count)
20254 struct lpfc_multixri_pool *multixri_pool;
20255 struct lpfc_multixri_pool *next_multixri_pool;
20256 struct lpfc_pvt_pool *pvt_pool;
20257 struct lpfc_pbl_pool *pbl_pool;
20258 struct lpfc_sli4_hdw_queue *qp;
20263 qp = &phba->sli4_hba.hdwq[hwqid];
20264 multixri_pool = qp->p_multixri_pool;
20265 pvt_pool = &multixri_pool->pvt_pool;
20266 pbl_pool = &multixri_pool->pbl_pool;
20268 /* Check if local pbl_pool is available */
20269 ret = _lpfc_move_xri_pbl_to_pvt(phba, qp, pbl_pool, pvt_pool, count);
20271 #ifdef LPFC_MXP_STAT
20272 multixri_pool->local_pbl_hit_count++;
20277 hwq_count = phba->cfg_hdw_queue;
20279 /* Get the next hwqid which was found last time */
20280 next_hwqid = multixri_pool->rrb_next_hwqid;
20283 /* Go to next hwq */
20284 next_hwqid = (next_hwqid + 1) % hwq_count;
20286 next_multixri_pool =
20287 phba->sli4_hba.hdwq[next_hwqid].p_multixri_pool;
20288 pbl_pool = &next_multixri_pool->pbl_pool;
20290 /* Check if the public free xri pool is available */
20291 ret = _lpfc_move_xri_pbl_to_pvt(
20292 phba, qp, pbl_pool, pvt_pool, count);
20294 /* Exit while-loop if success or all hwqid are checked */
20295 } while (!ret && next_hwqid != multixri_pool->rrb_next_hwqid);
20297 /* Starting point for the next time */
20298 multixri_pool->rrb_next_hwqid = next_hwqid;
20301 /* stats: all public pools are empty*/
20302 multixri_pool->pbl_empty_count++;
20305 #ifdef LPFC_MXP_STAT
20307 if (next_hwqid == hwqid)
20308 multixri_pool->local_pbl_hit_count++;
20310 multixri_pool->other_pbl_hit_count++;
20316 * lpfc_keep_pvt_pool_above_lowwm - Keep pvt_pool above low watermark
20317 * @phba: pointer to lpfc hba data structure.
20318 * @qp: belong to which HWQ.
20320 * This routine get a batch of XRIs from pbl_pool if pvt_pool is less than
20323 void lpfc_keep_pvt_pool_above_lowwm(struct lpfc_hba *phba, u32 hwqid)
20325 struct lpfc_multixri_pool *multixri_pool;
20326 struct lpfc_pvt_pool *pvt_pool;
20328 multixri_pool = phba->sli4_hba.hdwq[hwqid].p_multixri_pool;
20329 pvt_pool = &multixri_pool->pvt_pool;
20331 if (pvt_pool->count < pvt_pool->low_watermark)
20332 lpfc_move_xri_pbl_to_pvt(phba, hwqid, XRI_BATCH);
20336 * lpfc_release_io_buf - Return one IO buf back to free pool
20337 * @phba: pointer to lpfc hba data structure.
20338 * @lpfc_ncmd: IO buf to be returned.
20339 * @qp: belong to which HWQ.
20341 * This routine returns one IO buf back to free pool. If this is an urgent IO,
20342 * the IO buf is returned to expedite pool. If cfg_xri_rebalancing==1,
20343 * the IO buf is returned to pbl_pool or pvt_pool based on watermark and
20344 * xri_limit. If cfg_xri_rebalancing==0, the IO buf is returned to
20345 * lpfc_io_buf_list_put.
20347 void lpfc_release_io_buf(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_ncmd,
20348 struct lpfc_sli4_hdw_queue *qp)
20350 unsigned long iflag;
20351 struct lpfc_pbl_pool *pbl_pool;
20352 struct lpfc_pvt_pool *pvt_pool;
20353 struct lpfc_epd_pool *epd_pool;
20359 /* MUST zero fields if buffer is reused by another protocol */
20360 lpfc_ncmd->nvmeCmd = NULL;
20361 lpfc_ncmd->cur_iocbq.wqe_cmpl = NULL;
20362 lpfc_ncmd->cur_iocbq.iocb_cmpl = NULL;
20364 if (phba->cfg_xpsgl && !phba->nvmet_support &&
20365 !list_empty(&lpfc_ncmd->dma_sgl_xtra_list))
20366 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
20368 if (!list_empty(&lpfc_ncmd->dma_cmd_rsp_list))
20369 lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
20371 if (phba->cfg_xri_rebalancing) {
20372 if (lpfc_ncmd->expedite) {
20373 /* Return to expedite pool */
20374 epd_pool = &phba->epd_pool;
20375 spin_lock_irqsave(&epd_pool->lock, iflag);
20376 list_add_tail(&lpfc_ncmd->list, &epd_pool->list);
20378 spin_unlock_irqrestore(&epd_pool->lock, iflag);
20382 /* Avoid invalid access if an IO sneaks in and is being rejected
20383 * just _after_ xri pools are destroyed in lpfc_offline.
20384 * Nothing much can be done at this point.
20386 if (!qp->p_multixri_pool)
20389 pbl_pool = &qp->p_multixri_pool->pbl_pool;
20390 pvt_pool = &qp->p_multixri_pool->pvt_pool;
20392 txcmplq_cnt = qp->io_wq->pring->txcmplq_cnt;
20393 abts_io_bufs = qp->abts_scsi_io_bufs;
20394 abts_io_bufs += qp->abts_nvme_io_bufs;
20396 xri_owned = pvt_pool->count + txcmplq_cnt + abts_io_bufs;
20397 xri_limit = qp->p_multixri_pool->xri_limit;
20399 #ifdef LPFC_MXP_STAT
20400 if (xri_owned <= xri_limit)
20401 qp->p_multixri_pool->below_limit_count++;
20403 qp->p_multixri_pool->above_limit_count++;
20406 /* XRI goes to either public or private free xri pool
20407 * based on watermark and xri_limit
20409 if ((pvt_pool->count < pvt_pool->low_watermark) ||
20410 (xri_owned < xri_limit &&
20411 pvt_pool->count < pvt_pool->high_watermark)) {
20412 lpfc_qp_spin_lock_irqsave(&pvt_pool->lock, iflag,
20413 qp, free_pvt_pool);
20414 list_add_tail(&lpfc_ncmd->list,
20417 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
20419 lpfc_qp_spin_lock_irqsave(&pbl_pool->lock, iflag,
20420 qp, free_pub_pool);
20421 list_add_tail(&lpfc_ncmd->list,
20424 spin_unlock_irqrestore(&pbl_pool->lock, iflag);
20427 lpfc_qp_spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag,
20429 list_add_tail(&lpfc_ncmd->list,
20430 &qp->lpfc_io_buf_list_put);
20432 spin_unlock_irqrestore(&qp->io_buf_list_put_lock,
20438 * lpfc_get_io_buf_from_private_pool - Get one free IO buf from private pool
20439 * @phba: pointer to lpfc hba data structure.
20440 * @pvt_pool: pointer to private pool data structure.
20441 * @ndlp: pointer to lpfc nodelist data structure.
20443 * This routine tries to get one free IO buf from private pool.
20446 * pointer to one free IO buf - if private pool is not empty
20447 * NULL - if private pool is empty
20449 static struct lpfc_io_buf *
20450 lpfc_get_io_buf_from_private_pool(struct lpfc_hba *phba,
20451 struct lpfc_sli4_hdw_queue *qp,
20452 struct lpfc_pvt_pool *pvt_pool,
20453 struct lpfc_nodelist *ndlp)
20455 struct lpfc_io_buf *lpfc_ncmd;
20456 struct lpfc_io_buf *lpfc_ncmd_next;
20457 unsigned long iflag;
20459 lpfc_qp_spin_lock_irqsave(&pvt_pool->lock, iflag, qp, alloc_pvt_pool);
20460 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
20461 &pvt_pool->list, list) {
20462 if (lpfc_test_rrq_active(
20463 phba, ndlp, lpfc_ncmd->cur_iocbq.sli4_lxritag))
20465 list_del(&lpfc_ncmd->list);
20467 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
20470 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
20476 * lpfc_get_io_buf_from_expedite_pool - Get one free IO buf from expedite pool
20477 * @phba: pointer to lpfc hba data structure.
20479 * This routine tries to get one free IO buf from expedite pool.
20482 * pointer to one free IO buf - if expedite pool is not empty
20483 * NULL - if expedite pool is empty
20485 static struct lpfc_io_buf *
20486 lpfc_get_io_buf_from_expedite_pool(struct lpfc_hba *phba)
20488 struct lpfc_io_buf *lpfc_ncmd;
20489 struct lpfc_io_buf *lpfc_ncmd_next;
20490 unsigned long iflag;
20491 struct lpfc_epd_pool *epd_pool;
20493 epd_pool = &phba->epd_pool;
20496 spin_lock_irqsave(&epd_pool->lock, iflag);
20497 if (epd_pool->count > 0) {
20498 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
20499 &epd_pool->list, list) {
20500 list_del(&lpfc_ncmd->list);
20505 spin_unlock_irqrestore(&epd_pool->lock, iflag);
20511 * lpfc_get_io_buf_from_multixri_pools - Get one free IO bufs
20512 * @phba: pointer to lpfc hba data structure.
20513 * @ndlp: pointer to lpfc nodelist data structure.
20514 * @hwqid: belong to which HWQ
20515 * @expedite: 1 means this request is urgent.
20517 * This routine will do the following actions and then return a pointer to
20520 * 1. If private free xri count is empty, move some XRIs from public to
20522 * 2. Get one XRI from private free xri pool.
20523 * 3. If we fail to get one from pvt_pool and this is an expedite request,
20524 * get one free xri from expedite pool.
20526 * Note: ndlp is only used on SCSI side for RRQ testing.
20527 * The caller should pass NULL for ndlp on NVME side.
20530 * pointer to one free IO buf - if private pool is not empty
20531 * NULL - if private pool is empty
20533 static struct lpfc_io_buf *
20534 lpfc_get_io_buf_from_multixri_pools(struct lpfc_hba *phba,
20535 struct lpfc_nodelist *ndlp,
20536 int hwqid, int expedite)
20538 struct lpfc_sli4_hdw_queue *qp;
20539 struct lpfc_multixri_pool *multixri_pool;
20540 struct lpfc_pvt_pool *pvt_pool;
20541 struct lpfc_io_buf *lpfc_ncmd;
20543 qp = &phba->sli4_hba.hdwq[hwqid];
20545 multixri_pool = qp->p_multixri_pool;
20546 pvt_pool = &multixri_pool->pvt_pool;
20547 multixri_pool->io_req_count++;
20549 /* If pvt_pool is empty, move some XRIs from public to private pool */
20550 if (pvt_pool->count == 0)
20551 lpfc_move_xri_pbl_to_pvt(phba, hwqid, XRI_BATCH);
20553 /* Get one XRI from private free xri pool */
20554 lpfc_ncmd = lpfc_get_io_buf_from_private_pool(phba, qp, pvt_pool, ndlp);
20557 lpfc_ncmd->hdwq = qp;
20558 lpfc_ncmd->hdwq_no = hwqid;
20559 } else if (expedite) {
20560 /* If we fail to get one from pvt_pool and this is an expedite
20561 * request, get one free xri from expedite pool.
20563 lpfc_ncmd = lpfc_get_io_buf_from_expedite_pool(phba);
20569 static inline struct lpfc_io_buf *
20570 lpfc_io_buf(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp, int idx)
20572 struct lpfc_sli4_hdw_queue *qp;
20573 struct lpfc_io_buf *lpfc_cmd, *lpfc_cmd_next;
20575 qp = &phba->sli4_hba.hdwq[idx];
20576 list_for_each_entry_safe(lpfc_cmd, lpfc_cmd_next,
20577 &qp->lpfc_io_buf_list_get, list) {
20578 if (lpfc_test_rrq_active(phba, ndlp,
20579 lpfc_cmd->cur_iocbq.sli4_lxritag))
20582 if (lpfc_cmd->flags & LPFC_SBUF_NOT_POSTED)
20585 list_del_init(&lpfc_cmd->list);
20587 lpfc_cmd->hdwq = qp;
20588 lpfc_cmd->hdwq_no = idx;
20595 * lpfc_get_io_buf - Get one IO buffer from free pool
20596 * @phba: The HBA for which this call is being executed.
20597 * @ndlp: pointer to lpfc nodelist data structure.
20598 * @hwqid: belong to which HWQ
20599 * @expedite: 1 means this request is urgent.
20601 * This routine gets one IO buffer from free pool. If cfg_xri_rebalancing==1,
20602 * removes a IO buffer from multiXRI pools. If cfg_xri_rebalancing==0, removes
20603 * a IO buffer from head of @hdwq io_buf_list and returns to caller.
20605 * Note: ndlp is only used on SCSI side for RRQ testing.
20606 * The caller should pass NULL for ndlp on NVME side.
20610 * Pointer to lpfc_io_buf - Success
20612 struct lpfc_io_buf *lpfc_get_io_buf(struct lpfc_hba *phba,
20613 struct lpfc_nodelist *ndlp,
20614 u32 hwqid, int expedite)
20616 struct lpfc_sli4_hdw_queue *qp;
20617 unsigned long iflag;
20618 struct lpfc_io_buf *lpfc_cmd;
20620 qp = &phba->sli4_hba.hdwq[hwqid];
20623 if (phba->cfg_xri_rebalancing)
20624 lpfc_cmd = lpfc_get_io_buf_from_multixri_pools(
20625 phba, ndlp, hwqid, expedite);
20627 lpfc_qp_spin_lock_irqsave(&qp->io_buf_list_get_lock, iflag,
20628 qp, alloc_xri_get);
20629 if (qp->get_io_bufs > LPFC_NVME_EXPEDITE_XRICNT || expedite)
20630 lpfc_cmd = lpfc_io_buf(phba, ndlp, hwqid);
20632 lpfc_qp_spin_lock(&qp->io_buf_list_put_lock,
20633 qp, alloc_xri_put);
20634 list_splice(&qp->lpfc_io_buf_list_put,
20635 &qp->lpfc_io_buf_list_get);
20636 qp->get_io_bufs += qp->put_io_bufs;
20637 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
20638 qp->put_io_bufs = 0;
20639 spin_unlock(&qp->io_buf_list_put_lock);
20640 if (qp->get_io_bufs > LPFC_NVME_EXPEDITE_XRICNT ||
20642 lpfc_cmd = lpfc_io_buf(phba, ndlp, hwqid);
20644 spin_unlock_irqrestore(&qp->io_buf_list_get_lock, iflag);
20651 * lpfc_get_sgl_per_hdwq - Get one SGL chunk from hdwq's pool
20652 * @phba: The HBA for which this call is being executed.
20653 * @lpfc_buf: IO buf structure to append the SGL chunk
20655 * This routine gets one SGL chunk buffer from hdwq's SGL chunk pool,
20656 * and will allocate an SGL chunk if the pool is empty.
20660 * Pointer to sli4_hybrid_sgl - Success
20662 struct sli4_hybrid_sgl *
20663 lpfc_get_sgl_per_hdwq(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_buf)
20665 struct sli4_hybrid_sgl *list_entry = NULL;
20666 struct sli4_hybrid_sgl *tmp = NULL;
20667 struct sli4_hybrid_sgl *allocated_sgl = NULL;
20668 struct lpfc_sli4_hdw_queue *hdwq = lpfc_buf->hdwq;
20669 struct list_head *buf_list = &hdwq->sgl_list;
20670 unsigned long iflags;
20672 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
20674 if (likely(!list_empty(buf_list))) {
20675 /* break off 1 chunk from the sgl_list */
20676 list_for_each_entry_safe(list_entry, tmp,
20677 buf_list, list_node) {
20678 list_move_tail(&list_entry->list_node,
20679 &lpfc_buf->dma_sgl_xtra_list);
20683 /* allocate more */
20684 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
20685 tmp = kmalloc_node(sizeof(*tmp), GFP_ATOMIC,
20686 cpu_to_node(hdwq->io_wq->chann));
20688 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
20689 "8353 error kmalloc memory for HDWQ "
20691 lpfc_buf->hdwq_no, __func__);
20695 tmp->dma_sgl = dma_pool_alloc(phba->lpfc_sg_dma_buf_pool,
20696 GFP_ATOMIC, &tmp->dma_phys_sgl);
20697 if (!tmp->dma_sgl) {
20698 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
20699 "8354 error pool_alloc memory for HDWQ "
20701 lpfc_buf->hdwq_no, __func__);
20706 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
20707 list_add_tail(&tmp->list_node, &lpfc_buf->dma_sgl_xtra_list);
20710 allocated_sgl = list_last_entry(&lpfc_buf->dma_sgl_xtra_list,
20711 struct sli4_hybrid_sgl,
20714 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
20716 return allocated_sgl;
20720 * lpfc_put_sgl_per_hdwq - Put one SGL chunk into hdwq pool
20721 * @phba: The HBA for which this call is being executed.
20722 * @lpfc_buf: IO buf structure with the SGL chunk
20724 * This routine puts one SGL chunk buffer into hdwq's SGL chunk pool.
20731 lpfc_put_sgl_per_hdwq(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_buf)
20734 struct sli4_hybrid_sgl *list_entry = NULL;
20735 struct sli4_hybrid_sgl *tmp = NULL;
20736 struct lpfc_sli4_hdw_queue *hdwq = lpfc_buf->hdwq;
20737 struct list_head *buf_list = &hdwq->sgl_list;
20738 unsigned long iflags;
20740 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
20742 if (likely(!list_empty(&lpfc_buf->dma_sgl_xtra_list))) {
20743 list_for_each_entry_safe(list_entry, tmp,
20744 &lpfc_buf->dma_sgl_xtra_list,
20746 list_move_tail(&list_entry->list_node,
20753 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
20758 * lpfc_free_sgl_per_hdwq - Free all SGL chunks of hdwq pool
20759 * @phba: phba object
20760 * @hdwq: hdwq to cleanup sgl buff resources on
20762 * This routine frees all SGL chunks of hdwq SGL chunk pool.
20768 lpfc_free_sgl_per_hdwq(struct lpfc_hba *phba,
20769 struct lpfc_sli4_hdw_queue *hdwq)
20771 struct list_head *buf_list = &hdwq->sgl_list;
20772 struct sli4_hybrid_sgl *list_entry = NULL;
20773 struct sli4_hybrid_sgl *tmp = NULL;
20774 unsigned long iflags;
20776 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
20778 /* Free sgl pool */
20779 list_for_each_entry_safe(list_entry, tmp,
20780 buf_list, list_node) {
20781 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
20782 list_entry->dma_sgl,
20783 list_entry->dma_phys_sgl);
20784 list_del(&list_entry->list_node);
20788 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
20792 * lpfc_get_cmd_rsp_buf_per_hdwq - Get one CMD/RSP buffer from hdwq
20793 * @phba: The HBA for which this call is being executed.
20794 * @lpfc_buf: IO buf structure to attach the CMD/RSP buffer
20796 * This routine gets one CMD/RSP buffer from hdwq's CMD/RSP pool,
20797 * and will allocate an CMD/RSP buffer if the pool is empty.
20801 * Pointer to fcp_cmd_rsp_buf - Success
20803 struct fcp_cmd_rsp_buf *
20804 lpfc_get_cmd_rsp_buf_per_hdwq(struct lpfc_hba *phba,
20805 struct lpfc_io_buf *lpfc_buf)
20807 struct fcp_cmd_rsp_buf *list_entry = NULL;
20808 struct fcp_cmd_rsp_buf *tmp = NULL;
20809 struct fcp_cmd_rsp_buf *allocated_buf = NULL;
20810 struct lpfc_sli4_hdw_queue *hdwq = lpfc_buf->hdwq;
20811 struct list_head *buf_list = &hdwq->cmd_rsp_buf_list;
20812 unsigned long iflags;
20814 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
20816 if (likely(!list_empty(buf_list))) {
20817 /* break off 1 chunk from the list */
20818 list_for_each_entry_safe(list_entry, tmp,
20821 list_move_tail(&list_entry->list_node,
20822 &lpfc_buf->dma_cmd_rsp_list);
20826 /* allocate more */
20827 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
20828 tmp = kmalloc_node(sizeof(*tmp), GFP_ATOMIC,
20829 cpu_to_node(hdwq->io_wq->chann));
20831 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
20832 "8355 error kmalloc memory for HDWQ "
20834 lpfc_buf->hdwq_no, __func__);
20838 tmp->fcp_cmnd = dma_pool_alloc(phba->lpfc_cmd_rsp_buf_pool,
20840 &tmp->fcp_cmd_rsp_dma_handle);
20842 if (!tmp->fcp_cmnd) {
20843 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
20844 "8356 error pool_alloc memory for HDWQ "
20846 lpfc_buf->hdwq_no, __func__);
20851 tmp->fcp_rsp = (struct fcp_rsp *)((uint8_t *)tmp->fcp_cmnd +
20852 sizeof(struct fcp_cmnd));
20854 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
20855 list_add_tail(&tmp->list_node, &lpfc_buf->dma_cmd_rsp_list);
20858 allocated_buf = list_last_entry(&lpfc_buf->dma_cmd_rsp_list,
20859 struct fcp_cmd_rsp_buf,
20862 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
20864 return allocated_buf;
20868 * lpfc_put_cmd_rsp_buf_per_hdwq - Put one CMD/RSP buffer into hdwq pool
20869 * @phba: The HBA for which this call is being executed.
20870 * @lpfc_buf: IO buf structure with the CMD/RSP buf
20872 * This routine puts one CMD/RSP buffer into executing CPU's CMD/RSP pool.
20879 lpfc_put_cmd_rsp_buf_per_hdwq(struct lpfc_hba *phba,
20880 struct lpfc_io_buf *lpfc_buf)
20883 struct fcp_cmd_rsp_buf *list_entry = NULL;
20884 struct fcp_cmd_rsp_buf *tmp = NULL;
20885 struct lpfc_sli4_hdw_queue *hdwq = lpfc_buf->hdwq;
20886 struct list_head *buf_list = &hdwq->cmd_rsp_buf_list;
20887 unsigned long iflags;
20889 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
20891 if (likely(!list_empty(&lpfc_buf->dma_cmd_rsp_list))) {
20892 list_for_each_entry_safe(list_entry, tmp,
20893 &lpfc_buf->dma_cmd_rsp_list,
20895 list_move_tail(&list_entry->list_node,
20902 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
20907 * lpfc_free_cmd_rsp_buf_per_hdwq - Free all CMD/RSP chunks of hdwq pool
20908 * @phba: phba object
20909 * @hdwq: hdwq to cleanup cmd rsp buff resources on
20911 * This routine frees all CMD/RSP buffers of hdwq's CMD/RSP buf pool.
20917 lpfc_free_cmd_rsp_buf_per_hdwq(struct lpfc_hba *phba,
20918 struct lpfc_sli4_hdw_queue *hdwq)
20920 struct list_head *buf_list = &hdwq->cmd_rsp_buf_list;
20921 struct fcp_cmd_rsp_buf *list_entry = NULL;
20922 struct fcp_cmd_rsp_buf *tmp = NULL;
20923 unsigned long iflags;
20925 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
20927 /* Free cmd_rsp buf pool */
20928 list_for_each_entry_safe(list_entry, tmp,
20931 dma_pool_free(phba->lpfc_cmd_rsp_buf_pool,
20932 list_entry->fcp_cmnd,
20933 list_entry->fcp_cmd_rsp_dma_handle);
20934 list_del(&list_entry->list_node);
20938 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);