1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2017-2019 Broadcom. All Rights Reserved. The term *
5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. *
6 * Copyright (C) 2004-2016 Emulex. All rights reserved. *
7 * EMULEX and SLI are trademarks of Emulex. *
9 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
11 * This program is free software; you can redistribute it and/or *
12 * modify it under the terms of version 2 of the GNU General *
13 * Public License as published by the Free Software Foundation. *
14 * This program is distributed in the hope that it will be useful. *
15 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
16 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
18 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
19 * TO BE LEGALLY INVALID. See the GNU General Public License for *
20 * more details, a copy of which can be found in the file COPYING *
21 * included with this package. *
22 *******************************************************************/
24 #include <linux/blkdev.h>
25 #include <linux/pci.h>
26 #include <linux/interrupt.h>
27 #include <linux/delay.h>
28 #include <linux/slab.h>
29 #include <linux/lockdep.h>
31 #include <scsi/scsi.h>
32 #include <scsi/scsi_cmnd.h>
33 #include <scsi/scsi_device.h>
34 #include <scsi/scsi_host.h>
35 #include <scsi/scsi_transport_fc.h>
36 #include <scsi/fc/fc_fs.h>
37 #include <linux/aer.h>
39 #include <asm/set_memory.h>
42 #include <linux/nvme-fc-driver.h>
47 #include "lpfc_sli4.h"
49 #include "lpfc_disc.h"
51 #include "lpfc_scsi.h"
52 #include "lpfc_nvme.h"
53 #include "lpfc_nvmet.h"
54 #include "lpfc_crtn.h"
55 #include "lpfc_logmsg.h"
56 #include "lpfc_compat.h"
57 #include "lpfc_debugfs.h"
58 #include "lpfc_vport.h"
59 #include "lpfc_version.h"
61 /* There are only four IOCB completion types. */
62 typedef enum _lpfc_iocb_type {
70 /* Provide function prototypes local to this module. */
71 static int lpfc_sli_issue_mbox_s4(struct lpfc_hba *, LPFC_MBOXQ_t *,
73 static int lpfc_sli4_read_rev(struct lpfc_hba *, LPFC_MBOXQ_t *,
74 uint8_t *, uint32_t *);
75 static struct lpfc_iocbq *lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *,
77 static void lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *,
79 static void lpfc_sli4_handle_mds_loopback(struct lpfc_vport *vport,
80 struct hbq_dmabuf *dmabuf);
81 static bool lpfc_sli4_fp_handle_cqe(struct lpfc_hba *phba,
82 struct lpfc_queue *cq, struct lpfc_cqe *cqe);
83 static int lpfc_sli4_post_sgl_list(struct lpfc_hba *, struct list_head *,
85 static void lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba,
86 struct lpfc_queue *eq,
87 struct lpfc_eqe *eqe);
88 static bool lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba);
89 static bool lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba);
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)
520 struct lpfc_eqe *eqe;
521 int count = 0, consumed = 0;
523 if (cmpxchg(&eq->queue_claimed, 0, 1) != 0)
526 eqe = lpfc_sli4_eq_get(eq);
528 lpfc_sli4_hba_handle_eqe(phba, eq, eqe);
529 __lpfc_sli4_consume_eqe(phba, eq, eqe);
532 if (!(++count % eq->max_proc_limit))
535 if (!(count % eq->notify_interval)) {
536 phba->sli4_hba.sli4_write_eq_db(phba, eq, consumed,
541 eqe = lpfc_sli4_eq_get(eq);
543 eq->EQ_processed += count;
545 /* Track the max number of EQEs processed in 1 intr */
546 if (count > eq->EQ_max_eqe)
547 eq->EQ_max_eqe = count;
549 eq->queue_claimed = 0;
552 /* Always clear and re-arm the EQ */
553 phba->sli4_hba.sli4_write_eq_db(phba, eq, consumed, LPFC_QUEUE_REARM);
559 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
560 * @q: The Completion Queue to get the first valid CQE from
562 * This routine will get the first valid Completion Queue Entry from @q, update
563 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
564 * the Queue (no more work to do), or the Queue is full of CQEs that have been
565 * processed, but not popped back to the HBA then this routine will return NULL.
567 static struct lpfc_cqe *
568 lpfc_sli4_cq_get(struct lpfc_queue *q)
570 struct lpfc_cqe *cqe;
572 /* sanity check on queue memory */
575 cqe = lpfc_sli4_qe(q, q->host_index);
577 /* If the next CQE is not valid then we are done */
578 if (bf_get_le32(lpfc_cqe_valid, cqe) != q->qe_valid)
582 * insert barrier for instruction interlock : data from the hardware
583 * must have the valid bit checked before it can be copied and acted
584 * upon. Given what was seen in lpfc_sli4_cq_get() of speculative
585 * instructions allowing action on content before valid bit checked,
586 * add barrier here as well. May not be needed as "content" is a
587 * single 32-bit entity here (vs multi word structure for cq's).
594 __lpfc_sli4_consume_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
595 struct lpfc_cqe *cqe)
597 if (!phba->sli4_hba.pc_sli4_params.cqav)
598 bf_set_le32(lpfc_cqe_valid, cqe, 0);
600 cq->host_index = ((cq->host_index + 1) % cq->entry_count);
602 /* if the index wrapped around, toggle the valid bit */
603 if (phba->sli4_hba.pc_sli4_params.cqav && !cq->host_index)
604 cq->qe_valid = (cq->qe_valid) ? 0 : 1;
608 * lpfc_sli4_write_cq_db - write cq DB for entries consumed or arm state.
609 * @phba: the adapter with the CQ
610 * @q: The Completion Queue that the host has completed processing for.
611 * @count: the number of elements that were consumed
612 * @arm: Indicates whether the host wants to arms this CQ.
614 * This routine will notify the HBA, by ringing the doorbell, that the
615 * CQEs have been processed. The @arm parameter specifies whether the
616 * queue should be rearmed when ringing the doorbell.
619 lpfc_sli4_write_cq_db(struct lpfc_hba *phba, struct lpfc_queue *q,
620 uint32_t count, bool arm)
622 struct lpfc_register doorbell;
624 /* sanity check on queue memory */
625 if (unlikely(!q || (count == 0 && !arm)))
628 /* ring doorbell for number popped */
631 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
632 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, count);
633 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION);
634 bf_set(lpfc_eqcq_doorbell_cqid_hi, &doorbell,
635 (q->queue_id >> LPFC_CQID_HI_FIELD_SHIFT));
636 bf_set(lpfc_eqcq_doorbell_cqid_lo, &doorbell, q->queue_id);
637 writel(doorbell.word0, q->phba->sli4_hba.CQDBregaddr);
641 * lpfc_sli4_if6_write_cq_db - write cq DB for entries consumed or arm state.
642 * @phba: the adapter with the CQ
643 * @q: The Completion Queue that the host has completed processing for.
644 * @count: the number of elements that were consumed
645 * @arm: Indicates whether the host wants to arms this CQ.
647 * This routine will notify the HBA, by ringing the doorbell, that the
648 * CQEs have been processed. The @arm parameter specifies whether the
649 * queue should be rearmed when ringing the doorbell.
652 lpfc_sli4_if6_write_cq_db(struct lpfc_hba *phba, struct lpfc_queue *q,
653 uint32_t count, bool arm)
655 struct lpfc_register doorbell;
657 /* sanity check on queue memory */
658 if (unlikely(!q || (count == 0 && !arm)))
661 /* ring doorbell for number popped */
664 bf_set(lpfc_if6_cq_doorbell_arm, &doorbell, 1);
665 bf_set(lpfc_if6_cq_doorbell_num_released, &doorbell, count);
666 bf_set(lpfc_if6_cq_doorbell_cqid, &doorbell, q->queue_id);
667 writel(doorbell.word0, q->phba->sli4_hba.CQDBregaddr);
671 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
672 * @q: The Header Receive Queue to operate on.
673 * @wqe: The Receive Queue Entry to put on the Receive queue.
675 * This routine will copy the contents of @wqe to the next available entry on
676 * the @q. This function will then ring the Receive Queue Doorbell to signal the
677 * HBA to start processing the Receive Queue Entry. This function returns the
678 * index that the rqe was copied to if successful. If no entries are available
679 * on @q then this function will return -ENOMEM.
680 * The caller is expected to hold the hbalock when calling this routine.
683 lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
684 struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe)
686 struct lpfc_rqe *temp_hrqe;
687 struct lpfc_rqe *temp_drqe;
688 struct lpfc_register doorbell;
692 /* sanity check on queue memory */
693 if (unlikely(!hq) || unlikely(!dq))
695 hq_put_index = hq->host_index;
696 dq_put_index = dq->host_index;
697 temp_hrqe = lpfc_sli4_qe(hq, hq_put_index);
698 temp_drqe = lpfc_sli4_qe(dq, dq_put_index);
700 if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ)
702 if (hq_put_index != dq_put_index)
704 /* If the host has not yet processed the next entry then we are done */
705 if (((hq_put_index + 1) % hq->entry_count) == hq->hba_index)
707 lpfc_sli4_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size);
708 lpfc_sli4_pcimem_bcopy(drqe, temp_drqe, dq->entry_size);
710 /* Update the host index to point to the next slot */
711 hq->host_index = ((hq_put_index + 1) % hq->entry_count);
712 dq->host_index = ((dq_put_index + 1) % dq->entry_count);
715 /* Ring The Header Receive Queue Doorbell */
716 if (!(hq->host_index % hq->notify_interval)) {
718 if (hq->db_format == LPFC_DB_RING_FORMAT) {
719 bf_set(lpfc_rq_db_ring_fm_num_posted, &doorbell,
720 hq->notify_interval);
721 bf_set(lpfc_rq_db_ring_fm_id, &doorbell, hq->queue_id);
722 } else if (hq->db_format == LPFC_DB_LIST_FORMAT) {
723 bf_set(lpfc_rq_db_list_fm_num_posted, &doorbell,
724 hq->notify_interval);
725 bf_set(lpfc_rq_db_list_fm_index, &doorbell,
727 bf_set(lpfc_rq_db_list_fm_id, &doorbell, hq->queue_id);
731 writel(doorbell.word0, hq->db_regaddr);
737 * lpfc_sli4_rq_release - Updates internal hba index for RQ
738 * @q: The Header Receive Queue to operate on.
740 * This routine will update the HBA index of a queue to reflect consumption of
741 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
742 * consumed an entry the host calls this function to update the queue's
743 * internal pointers. This routine returns the number of entries that were
744 * consumed by the HBA.
747 lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq)
749 /* sanity check on queue memory */
750 if (unlikely(!hq) || unlikely(!dq))
753 if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ))
755 hq->hba_index = ((hq->hba_index + 1) % hq->entry_count);
756 dq->hba_index = ((dq->hba_index + 1) % dq->entry_count);
761 * lpfc_cmd_iocb - Get next command iocb entry in the ring
762 * @phba: Pointer to HBA context object.
763 * @pring: Pointer to driver SLI ring object.
765 * This function returns pointer to next command iocb entry
766 * in the command ring. The caller must hold hbalock to prevent
767 * other threads consume the next command iocb.
768 * SLI-2/SLI-3 provide different sized iocbs.
770 static inline IOCB_t *
771 lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
773 return (IOCB_t *) (((char *) pring->sli.sli3.cmdringaddr) +
774 pring->sli.sli3.cmdidx * phba->iocb_cmd_size);
778 * lpfc_resp_iocb - Get next response iocb entry in the ring
779 * @phba: Pointer to HBA context object.
780 * @pring: Pointer to driver SLI ring object.
782 * This function returns pointer to next response iocb entry
783 * in the response ring. The caller must hold hbalock to make sure
784 * that no other thread consume the next response iocb.
785 * SLI-2/SLI-3 provide different sized iocbs.
787 static inline IOCB_t *
788 lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
790 return (IOCB_t *) (((char *) pring->sli.sli3.rspringaddr) +
791 pring->sli.sli3.rspidx * phba->iocb_rsp_size);
795 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
796 * @phba: Pointer to HBA context object.
798 * This function is called with hbalock held. This function
799 * allocates a new driver iocb object from the iocb pool. If the
800 * allocation is successful, it returns pointer to the newly
801 * allocated iocb object else it returns NULL.
804 __lpfc_sli_get_iocbq(struct lpfc_hba *phba)
806 struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
807 struct lpfc_iocbq * iocbq = NULL;
809 lockdep_assert_held(&phba->hbalock);
811 list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
814 if (phba->iocb_cnt > phba->iocb_max)
815 phba->iocb_max = phba->iocb_cnt;
820 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
821 * @phba: Pointer to HBA context object.
822 * @xritag: XRI value.
824 * This function clears the sglq pointer from the array of acive
825 * sglq's. The xritag that is passed in is used to index into the
826 * array. Before the xritag can be used it needs to be adjusted
827 * by subtracting the xribase.
829 * Returns sglq ponter = success, NULL = Failure.
832 __lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
834 struct lpfc_sglq *sglq;
836 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
837 phba->sli4_hba.lpfc_sglq_active_list[xritag] = NULL;
842 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
843 * @phba: Pointer to HBA context object.
844 * @xritag: XRI value.
846 * This function returns the sglq pointer from the array of acive
847 * sglq's. The xritag that is passed in is used to index into the
848 * array. Before the xritag can be used it needs to be adjusted
849 * by subtracting the xribase.
851 * Returns sglq ponter = success, NULL = Failure.
854 __lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
856 struct lpfc_sglq *sglq;
858 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
863 * lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
864 * @phba: Pointer to HBA context object.
865 * @xritag: xri used in this exchange.
866 * @rrq: The RRQ to be cleared.
870 lpfc_clr_rrq_active(struct lpfc_hba *phba,
872 struct lpfc_node_rrq *rrq)
874 struct lpfc_nodelist *ndlp = NULL;
876 if ((rrq->vport) && NLP_CHK_NODE_ACT(rrq->ndlp))
877 ndlp = lpfc_findnode_did(rrq->vport, rrq->nlp_DID);
879 /* The target DID could have been swapped (cable swap)
880 * we should use the ndlp from the findnode if it is
883 if ((!ndlp) && rrq->ndlp)
889 if (test_and_clear_bit(xritag, ndlp->active_rrqs_xri_bitmap)) {
892 rrq->rrq_stop_time = 0;
895 mempool_free(rrq, phba->rrq_pool);
899 * lpfc_handle_rrq_active - Checks if RRQ has waithed RATOV.
900 * @phba: Pointer to HBA context object.
902 * This function is called with hbalock held. This function
903 * Checks if stop_time (ratov from setting rrq active) has
904 * been reached, if it has and the send_rrq flag is set then
905 * it will call lpfc_send_rrq. If the send_rrq flag is not set
906 * then it will just call the routine to clear the rrq and
907 * free the rrq resource.
908 * The timer is set to the next rrq that is going to expire before
909 * leaving the routine.
913 lpfc_handle_rrq_active(struct lpfc_hba *phba)
915 struct lpfc_node_rrq *rrq;
916 struct lpfc_node_rrq *nextrrq;
917 unsigned long next_time;
918 unsigned long iflags;
921 spin_lock_irqsave(&phba->hbalock, iflags);
922 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
923 next_time = jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
924 list_for_each_entry_safe(rrq, nextrrq,
925 &phba->active_rrq_list, list) {
926 if (time_after(jiffies, rrq->rrq_stop_time))
927 list_move(&rrq->list, &send_rrq);
928 else if (time_before(rrq->rrq_stop_time, next_time))
929 next_time = rrq->rrq_stop_time;
931 spin_unlock_irqrestore(&phba->hbalock, iflags);
932 if ((!list_empty(&phba->active_rrq_list)) &&
933 (!(phba->pport->load_flag & FC_UNLOADING)))
934 mod_timer(&phba->rrq_tmr, next_time);
935 list_for_each_entry_safe(rrq, nextrrq, &send_rrq, list) {
936 list_del(&rrq->list);
937 if (!rrq->send_rrq) {
938 /* this call will free the rrq */
939 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
940 } else if (lpfc_send_rrq(phba, rrq)) {
941 /* if we send the rrq then the completion handler
942 * will clear the bit in the xribitmap.
944 lpfc_clr_rrq_active(phba, rrq->xritag,
951 * lpfc_get_active_rrq - Get the active RRQ for this exchange.
952 * @vport: Pointer to vport context object.
953 * @xri: The xri used in the exchange.
954 * @did: The targets DID for this exchange.
956 * returns NULL = rrq not found in the phba->active_rrq_list.
957 * rrq = rrq for this xri and target.
959 struct lpfc_node_rrq *
960 lpfc_get_active_rrq(struct lpfc_vport *vport, uint16_t xri, uint32_t did)
962 struct lpfc_hba *phba = vport->phba;
963 struct lpfc_node_rrq *rrq;
964 struct lpfc_node_rrq *nextrrq;
965 unsigned long iflags;
967 if (phba->sli_rev != LPFC_SLI_REV4)
969 spin_lock_irqsave(&phba->hbalock, iflags);
970 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) {
971 if (rrq->vport == vport && rrq->xritag == xri &&
972 rrq->nlp_DID == did){
973 list_del(&rrq->list);
974 spin_unlock_irqrestore(&phba->hbalock, iflags);
978 spin_unlock_irqrestore(&phba->hbalock, iflags);
983 * lpfc_cleanup_vports_rrqs - Remove and clear the active RRQ for this vport.
984 * @vport: Pointer to vport context object.
985 * @ndlp: Pointer to the lpfc_node_list structure.
986 * If ndlp is NULL Remove all active RRQs for this vport from the
987 * phba->active_rrq_list and clear the rrq.
988 * If ndlp is not NULL then only remove rrqs for this vport & this ndlp.
991 lpfc_cleanup_vports_rrqs(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
994 struct lpfc_hba *phba = vport->phba;
995 struct lpfc_node_rrq *rrq;
996 struct lpfc_node_rrq *nextrrq;
997 unsigned long iflags;
1000 if (phba->sli_rev != LPFC_SLI_REV4)
1003 lpfc_sli4_vport_delete_els_xri_aborted(vport);
1004 lpfc_sli4_vport_delete_fcp_xri_aborted(vport);
1006 spin_lock_irqsave(&phba->hbalock, iflags);
1007 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list)
1008 if ((rrq->vport == vport) && (!ndlp || rrq->ndlp == ndlp))
1009 list_move(&rrq->list, &rrq_list);
1010 spin_unlock_irqrestore(&phba->hbalock, iflags);
1012 list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
1013 list_del(&rrq->list);
1014 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
1019 * lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
1020 * @phba: Pointer to HBA context object.
1021 * @ndlp: Targets nodelist pointer for this exchange.
1022 * @xritag the xri in the bitmap to test.
1024 * This function returns:
1025 * 0 = rrq not active for this xri
1026 * 1 = rrq is valid for this xri.
1029 lpfc_test_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
1034 if (!ndlp->active_rrqs_xri_bitmap)
1036 if (test_bit(xritag, ndlp->active_rrqs_xri_bitmap))
1043 * lpfc_set_rrq_active - set RRQ active bit in xri_bitmap.
1044 * @phba: Pointer to HBA context object.
1045 * @ndlp: nodelist pointer for this target.
1046 * @xritag: xri used in this exchange.
1047 * @rxid: Remote Exchange ID.
1048 * @send_rrq: Flag used to determine if we should send rrq els cmd.
1050 * This function takes the hbalock.
1051 * The active bit is always set in the active rrq xri_bitmap even
1052 * if there is no slot avaiable for the other rrq information.
1054 * returns 0 rrq actived for this xri
1055 * < 0 No memory or invalid ndlp.
1058 lpfc_set_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
1059 uint16_t xritag, uint16_t rxid, uint16_t send_rrq)
1061 unsigned long iflags;
1062 struct lpfc_node_rrq *rrq;
1068 if (!phba->cfg_enable_rrq)
1071 spin_lock_irqsave(&phba->hbalock, iflags);
1072 if (phba->pport->load_flag & FC_UNLOADING) {
1073 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1078 * set the active bit even if there is no mem available.
1080 if (NLP_CHK_FREE_REQ(ndlp))
1083 if (ndlp->vport && (ndlp->vport->load_flag & FC_UNLOADING))
1086 if (!ndlp->active_rrqs_xri_bitmap)
1089 if (test_and_set_bit(xritag, ndlp->active_rrqs_xri_bitmap))
1092 spin_unlock_irqrestore(&phba->hbalock, iflags);
1093 rrq = mempool_alloc(phba->rrq_pool, GFP_KERNEL);
1095 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
1096 "3155 Unable to allocate RRQ xri:0x%x rxid:0x%x"
1097 " DID:0x%x Send:%d\n",
1098 xritag, rxid, ndlp->nlp_DID, send_rrq);
1101 if (phba->cfg_enable_rrq == 1)
1102 rrq->send_rrq = send_rrq;
1105 rrq->xritag = xritag;
1106 rrq->rrq_stop_time = jiffies +
1107 msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
1109 rrq->nlp_DID = ndlp->nlp_DID;
1110 rrq->vport = ndlp->vport;
1112 spin_lock_irqsave(&phba->hbalock, iflags);
1113 empty = list_empty(&phba->active_rrq_list);
1114 list_add_tail(&rrq->list, &phba->active_rrq_list);
1115 phba->hba_flag |= HBA_RRQ_ACTIVE;
1117 lpfc_worker_wake_up(phba);
1118 spin_unlock_irqrestore(&phba->hbalock, iflags);
1121 spin_unlock_irqrestore(&phba->hbalock, iflags);
1122 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
1123 "2921 Can't set rrq active xri:0x%x rxid:0x%x"
1124 " DID:0x%x Send:%d\n",
1125 xritag, rxid, ndlp->nlp_DID, send_rrq);
1130 * __lpfc_sli_get_els_sglq - Allocates an iocb object from sgl pool
1131 * @phba: Pointer to HBA context object.
1132 * @piocb: Pointer to the iocbq.
1134 * The driver calls this function with either the nvme ls ring lock
1135 * or the fc els ring lock held depending on the iocb usage. This function
1136 * gets a new driver sglq object from the sglq list. If the list is not empty
1137 * then it is successful, it returns pointer to the newly allocated sglq
1138 * object else it returns NULL.
1140 static struct lpfc_sglq *
1141 __lpfc_sli_get_els_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
1143 struct list_head *lpfc_els_sgl_list = &phba->sli4_hba.lpfc_els_sgl_list;
1144 struct lpfc_sglq *sglq = NULL;
1145 struct lpfc_sglq *start_sglq = NULL;
1146 struct lpfc_io_buf *lpfc_cmd;
1147 struct lpfc_nodelist *ndlp;
1148 struct lpfc_sli_ring *pring = NULL;
1151 if (piocbq->iocb_flag & LPFC_IO_NVME_LS)
1152 pring = phba->sli4_hba.nvmels_wq->pring;
1154 pring = lpfc_phba_elsring(phba);
1156 lockdep_assert_held(&pring->ring_lock);
1158 if (piocbq->iocb_flag & LPFC_IO_FCP) {
1159 lpfc_cmd = (struct lpfc_io_buf *) piocbq->context1;
1160 ndlp = lpfc_cmd->rdata->pnode;
1161 } else if ((piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) &&
1162 !(piocbq->iocb_flag & LPFC_IO_LIBDFC)) {
1163 ndlp = piocbq->context_un.ndlp;
1164 } else if (piocbq->iocb_flag & LPFC_IO_LIBDFC) {
1165 if (piocbq->iocb_flag & LPFC_IO_LOOPBACK)
1168 ndlp = piocbq->context_un.ndlp;
1170 ndlp = piocbq->context1;
1173 spin_lock(&phba->sli4_hba.sgl_list_lock);
1174 list_remove_head(lpfc_els_sgl_list, sglq, struct lpfc_sglq, list);
1179 if (ndlp && ndlp->active_rrqs_xri_bitmap &&
1180 test_bit(sglq->sli4_lxritag,
1181 ndlp->active_rrqs_xri_bitmap)) {
1182 /* This xri has an rrq outstanding for this DID.
1183 * put it back in the list and get another xri.
1185 list_add_tail(&sglq->list, lpfc_els_sgl_list);
1187 list_remove_head(lpfc_els_sgl_list, sglq,
1188 struct lpfc_sglq, list);
1189 if (sglq == start_sglq) {
1190 list_add_tail(&sglq->list, lpfc_els_sgl_list);
1198 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
1199 sglq->state = SGL_ALLOCATED;
1201 spin_unlock(&phba->sli4_hba.sgl_list_lock);
1206 * __lpfc_sli_get_nvmet_sglq - Allocates an iocb object from sgl pool
1207 * @phba: Pointer to HBA context object.
1208 * @piocb: Pointer to the iocbq.
1210 * This function is called with the sgl_list lock held. This function
1211 * gets a new driver sglq object from the sglq list. If the
1212 * list is not empty then it is successful, it returns pointer to the newly
1213 * allocated sglq object else it returns NULL.
1216 __lpfc_sli_get_nvmet_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
1218 struct list_head *lpfc_nvmet_sgl_list;
1219 struct lpfc_sglq *sglq = NULL;
1221 lpfc_nvmet_sgl_list = &phba->sli4_hba.lpfc_nvmet_sgl_list;
1223 lockdep_assert_held(&phba->sli4_hba.sgl_list_lock);
1225 list_remove_head(lpfc_nvmet_sgl_list, sglq, struct lpfc_sglq, list);
1228 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
1229 sglq->state = SGL_ALLOCATED;
1234 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
1235 * @phba: Pointer to HBA context object.
1237 * This function is called with no lock held. This function
1238 * allocates a new driver iocb object from the iocb pool. If the
1239 * allocation is successful, it returns pointer to the newly
1240 * allocated iocb object else it returns NULL.
1243 lpfc_sli_get_iocbq(struct lpfc_hba *phba)
1245 struct lpfc_iocbq * iocbq = NULL;
1246 unsigned long iflags;
1248 spin_lock_irqsave(&phba->hbalock, iflags);
1249 iocbq = __lpfc_sli_get_iocbq(phba);
1250 spin_unlock_irqrestore(&phba->hbalock, iflags);
1255 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
1256 * @phba: Pointer to HBA context object.
1257 * @iocbq: Pointer to driver iocb object.
1259 * This function is called with hbalock held to release driver
1260 * iocb object to the iocb pool. The iotag in the iocb object
1261 * does not change for each use of the iocb object. This function
1262 * clears all other fields of the iocb object when it is freed.
1263 * The sqlq structure that holds the xritag and phys and virtual
1264 * mappings for the scatter gather list is retrieved from the
1265 * active array of sglq. The get of the sglq pointer also clears
1266 * the entry in the array. If the status of the IO indiactes that
1267 * this IO was aborted then the sglq entry it put on the
1268 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
1269 * IO has good status or fails for any other reason then the sglq
1270 * entry is added to the free list (lpfc_els_sgl_list).
1273 __lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1275 struct lpfc_sglq *sglq;
1276 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1277 unsigned long iflag = 0;
1278 struct lpfc_sli_ring *pring;
1280 lockdep_assert_held(&phba->hbalock);
1282 if (iocbq->sli4_xritag == NO_XRI)
1285 sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_lxritag);
1289 if (iocbq->iocb_flag & LPFC_IO_NVMET) {
1290 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock,
1292 sglq->state = SGL_FREED;
1294 list_add_tail(&sglq->list,
1295 &phba->sli4_hba.lpfc_nvmet_sgl_list);
1296 spin_unlock_irqrestore(
1297 &phba->sli4_hba.sgl_list_lock, iflag);
1301 pring = phba->sli4_hba.els_wq->pring;
1302 if ((iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) &&
1303 (sglq->state != SGL_XRI_ABORTED)) {
1304 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock,
1306 list_add(&sglq->list,
1307 &phba->sli4_hba.lpfc_abts_els_sgl_list);
1308 spin_unlock_irqrestore(
1309 &phba->sli4_hba.sgl_list_lock, iflag);
1311 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock,
1313 sglq->state = SGL_FREED;
1315 list_add_tail(&sglq->list,
1316 &phba->sli4_hba.lpfc_els_sgl_list);
1317 spin_unlock_irqrestore(
1318 &phba->sli4_hba.sgl_list_lock, iflag);
1320 /* Check if TXQ queue needs to be serviced */
1321 if (!list_empty(&pring->txq))
1322 lpfc_worker_wake_up(phba);
1328 * Clean all volatile data fields, preserve iotag and node struct.
1330 memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1331 iocbq->sli4_lxritag = NO_XRI;
1332 iocbq->sli4_xritag = NO_XRI;
1333 iocbq->iocb_flag &= ~(LPFC_IO_NVME | LPFC_IO_NVMET |
1335 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1340 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
1341 * @phba: Pointer to HBA context object.
1342 * @iocbq: Pointer to driver iocb object.
1344 * This function is called with hbalock held to release driver
1345 * iocb object to the iocb pool. The iotag in the iocb object
1346 * does not change for each use of the iocb object. This function
1347 * clears all other fields of the iocb object when it is freed.
1350 __lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1352 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1354 lockdep_assert_held(&phba->hbalock);
1357 * Clean all volatile data fields, preserve iotag and node struct.
1359 memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1360 iocbq->sli4_xritag = NO_XRI;
1361 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1365 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
1366 * @phba: Pointer to HBA context object.
1367 * @iocbq: Pointer to driver iocb object.
1369 * This function is called with hbalock held to release driver
1370 * iocb object to the iocb pool. The iotag in the iocb object
1371 * does not change for each use of the iocb object. This function
1372 * clears all other fields of the iocb object when it is freed.
1375 __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1377 lockdep_assert_held(&phba->hbalock);
1379 phba->__lpfc_sli_release_iocbq(phba, iocbq);
1384 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
1385 * @phba: Pointer to HBA context object.
1386 * @iocbq: Pointer to driver iocb object.
1388 * This function is called with no lock held to release the iocb to
1392 lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1394 unsigned long iflags;
1397 * Clean all volatile data fields, preserve iotag and node struct.
1399 spin_lock_irqsave(&phba->hbalock, iflags);
1400 __lpfc_sli_release_iocbq(phba, iocbq);
1401 spin_unlock_irqrestore(&phba->hbalock, iflags);
1405 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
1406 * @phba: Pointer to HBA context object.
1407 * @iocblist: List of IOCBs.
1408 * @ulpstatus: ULP status in IOCB command field.
1409 * @ulpWord4: ULP word-4 in IOCB command field.
1411 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
1412 * on the list by invoking the complete callback function associated with the
1413 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
1417 lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
1418 uint32_t ulpstatus, uint32_t ulpWord4)
1420 struct lpfc_iocbq *piocb;
1422 while (!list_empty(iocblist)) {
1423 list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
1424 if (!piocb->iocb_cmpl) {
1425 if (piocb->iocb_flag & LPFC_IO_NVME)
1426 lpfc_nvme_cancel_iocb(phba, piocb);
1428 lpfc_sli_release_iocbq(phba, piocb);
1430 piocb->iocb.ulpStatus = ulpstatus;
1431 piocb->iocb.un.ulpWord[4] = ulpWord4;
1432 (piocb->iocb_cmpl) (phba, piocb, piocb);
1439 * lpfc_sli_iocb_cmd_type - Get the iocb type
1440 * @iocb_cmnd: iocb command code.
1442 * This function is called by ring event handler function to get the iocb type.
1443 * This function translates the iocb command to an iocb command type used to
1444 * decide the final disposition of each completed IOCB.
1445 * The function returns
1446 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
1447 * LPFC_SOL_IOCB if it is a solicited iocb completion
1448 * LPFC_ABORT_IOCB if it is an abort iocb
1449 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
1451 * The caller is not required to hold any lock.
1453 static lpfc_iocb_type
1454 lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
1456 lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
1458 if (iocb_cmnd > CMD_MAX_IOCB_CMD)
1461 switch (iocb_cmnd) {
1462 case CMD_XMIT_SEQUENCE_CR:
1463 case CMD_XMIT_SEQUENCE_CX:
1464 case CMD_XMIT_BCAST_CN:
1465 case CMD_XMIT_BCAST_CX:
1466 case CMD_ELS_REQUEST_CR:
1467 case CMD_ELS_REQUEST_CX:
1468 case CMD_CREATE_XRI_CR:
1469 case CMD_CREATE_XRI_CX:
1470 case CMD_GET_RPI_CN:
1471 case CMD_XMIT_ELS_RSP_CX:
1472 case CMD_GET_RPI_CR:
1473 case CMD_FCP_IWRITE_CR:
1474 case CMD_FCP_IWRITE_CX:
1475 case CMD_FCP_IREAD_CR:
1476 case CMD_FCP_IREAD_CX:
1477 case CMD_FCP_ICMND_CR:
1478 case CMD_FCP_ICMND_CX:
1479 case CMD_FCP_TSEND_CX:
1480 case CMD_FCP_TRSP_CX:
1481 case CMD_FCP_TRECEIVE_CX:
1482 case CMD_FCP_AUTO_TRSP_CX:
1483 case CMD_ADAPTER_MSG:
1484 case CMD_ADAPTER_DUMP:
1485 case CMD_XMIT_SEQUENCE64_CR:
1486 case CMD_XMIT_SEQUENCE64_CX:
1487 case CMD_XMIT_BCAST64_CN:
1488 case CMD_XMIT_BCAST64_CX:
1489 case CMD_ELS_REQUEST64_CR:
1490 case CMD_ELS_REQUEST64_CX:
1491 case CMD_FCP_IWRITE64_CR:
1492 case CMD_FCP_IWRITE64_CX:
1493 case CMD_FCP_IREAD64_CR:
1494 case CMD_FCP_IREAD64_CX:
1495 case CMD_FCP_ICMND64_CR:
1496 case CMD_FCP_ICMND64_CX:
1497 case CMD_FCP_TSEND64_CX:
1498 case CMD_FCP_TRSP64_CX:
1499 case CMD_FCP_TRECEIVE64_CX:
1500 case CMD_GEN_REQUEST64_CR:
1501 case CMD_GEN_REQUEST64_CX:
1502 case CMD_XMIT_ELS_RSP64_CX:
1503 case DSSCMD_IWRITE64_CR:
1504 case DSSCMD_IWRITE64_CX:
1505 case DSSCMD_IREAD64_CR:
1506 case DSSCMD_IREAD64_CX:
1507 type = LPFC_SOL_IOCB;
1509 case CMD_ABORT_XRI_CN:
1510 case CMD_ABORT_XRI_CX:
1511 case CMD_CLOSE_XRI_CN:
1512 case CMD_CLOSE_XRI_CX:
1513 case CMD_XRI_ABORTED_CX:
1514 case CMD_ABORT_MXRI64_CN:
1515 case CMD_XMIT_BLS_RSP64_CX:
1516 type = LPFC_ABORT_IOCB;
1518 case CMD_RCV_SEQUENCE_CX:
1519 case CMD_RCV_ELS_REQ_CX:
1520 case CMD_RCV_SEQUENCE64_CX:
1521 case CMD_RCV_ELS_REQ64_CX:
1522 case CMD_ASYNC_STATUS:
1523 case CMD_IOCB_RCV_SEQ64_CX:
1524 case CMD_IOCB_RCV_ELS64_CX:
1525 case CMD_IOCB_RCV_CONT64_CX:
1526 case CMD_IOCB_RET_XRI64_CX:
1527 type = LPFC_UNSOL_IOCB;
1529 case CMD_IOCB_XMIT_MSEQ64_CR:
1530 case CMD_IOCB_XMIT_MSEQ64_CX:
1531 case CMD_IOCB_RCV_SEQ_LIST64_CX:
1532 case CMD_IOCB_RCV_ELS_LIST64_CX:
1533 case CMD_IOCB_CLOSE_EXTENDED_CN:
1534 case CMD_IOCB_ABORT_EXTENDED_CN:
1535 case CMD_IOCB_RET_HBQE64_CN:
1536 case CMD_IOCB_FCP_IBIDIR64_CR:
1537 case CMD_IOCB_FCP_IBIDIR64_CX:
1538 case CMD_IOCB_FCP_ITASKMGT64_CX:
1539 case CMD_IOCB_LOGENTRY_CN:
1540 case CMD_IOCB_LOGENTRY_ASYNC_CN:
1541 printk("%s - Unhandled SLI-3 Command x%x\n",
1542 __func__, iocb_cmnd);
1543 type = LPFC_UNKNOWN_IOCB;
1546 type = LPFC_UNKNOWN_IOCB;
1554 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
1555 * @phba: Pointer to HBA context object.
1557 * This function is called from SLI initialization code
1558 * to configure every ring of the HBA's SLI interface. The
1559 * caller is not required to hold any lock. This function issues
1560 * a config_ring mailbox command for each ring.
1561 * This function returns zero if successful else returns a negative
1565 lpfc_sli_ring_map(struct lpfc_hba *phba)
1567 struct lpfc_sli *psli = &phba->sli;
1572 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1576 phba->link_state = LPFC_INIT_MBX_CMDS;
1577 for (i = 0; i < psli->num_rings; i++) {
1578 lpfc_config_ring(phba, i, pmb);
1579 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
1580 if (rc != MBX_SUCCESS) {
1581 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1582 "0446 Adapter failed to init (%d), "
1583 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
1585 rc, pmbox->mbxCommand,
1586 pmbox->mbxStatus, i);
1587 phba->link_state = LPFC_HBA_ERROR;
1592 mempool_free(pmb, phba->mbox_mem_pool);
1597 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
1598 * @phba: Pointer to HBA context object.
1599 * @pring: Pointer to driver SLI ring object.
1600 * @piocb: Pointer to the driver iocb object.
1602 * The driver calls this function with the hbalock held for SLI3 ports or
1603 * the ring lock held for SLI4 ports. The function adds the
1604 * new iocb to txcmplq of the given ring. This function always returns
1605 * 0. If this function is called for ELS ring, this function checks if
1606 * there is a vport associated with the ELS command. This function also
1607 * starts els_tmofunc timer if this is an ELS command.
1610 lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1611 struct lpfc_iocbq *piocb)
1613 if (phba->sli_rev == LPFC_SLI_REV4)
1614 lockdep_assert_held(&pring->ring_lock);
1616 lockdep_assert_held(&phba->hbalock);
1620 list_add_tail(&piocb->list, &pring->txcmplq);
1621 piocb->iocb_flag |= LPFC_IO_ON_TXCMPLQ;
1622 pring->txcmplq_cnt++;
1624 if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
1625 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
1626 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
1627 BUG_ON(!piocb->vport);
1628 if (!(piocb->vport->load_flag & FC_UNLOADING))
1629 mod_timer(&piocb->vport->els_tmofunc,
1631 msecs_to_jiffies(1000 * (phba->fc_ratov << 1)));
1638 * lpfc_sli_ringtx_get - Get first element of the txq
1639 * @phba: Pointer to HBA context object.
1640 * @pring: Pointer to driver SLI ring object.
1642 * This function is called with hbalock held to get next
1643 * iocb in txq of the given ring. If there is any iocb in
1644 * the txq, the function returns first iocb in the list after
1645 * removing the iocb from the list, else it returns NULL.
1648 lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1650 struct lpfc_iocbq *cmd_iocb;
1652 lockdep_assert_held(&phba->hbalock);
1654 list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
1659 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
1660 * @phba: Pointer to HBA context object.
1661 * @pring: Pointer to driver SLI ring object.
1663 * This function is called with hbalock held and the caller must post the
1664 * iocb without releasing the lock. If the caller releases the lock,
1665 * iocb slot returned by the function is not guaranteed to be available.
1666 * The function returns pointer to the next available iocb slot if there
1667 * is available slot in the ring, else it returns NULL.
1668 * If the get index of the ring is ahead of the put index, the function
1669 * will post an error attention event to the worker thread to take the
1670 * HBA to offline state.
1673 lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1675 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
1676 uint32_t max_cmd_idx = pring->sli.sli3.numCiocb;
1678 lockdep_assert_held(&phba->hbalock);
1680 if ((pring->sli.sli3.next_cmdidx == pring->sli.sli3.cmdidx) &&
1681 (++pring->sli.sli3.next_cmdidx >= max_cmd_idx))
1682 pring->sli.sli3.next_cmdidx = 0;
1684 if (unlikely(pring->sli.sli3.local_getidx ==
1685 pring->sli.sli3.next_cmdidx)) {
1687 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
1689 if (unlikely(pring->sli.sli3.local_getidx >= max_cmd_idx)) {
1690 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1691 "0315 Ring %d issue: portCmdGet %d "
1692 "is bigger than cmd ring %d\n",
1694 pring->sli.sli3.local_getidx,
1697 phba->link_state = LPFC_HBA_ERROR;
1699 * All error attention handlers are posted to
1702 phba->work_ha |= HA_ERATT;
1703 phba->work_hs = HS_FFER3;
1705 lpfc_worker_wake_up(phba);
1710 if (pring->sli.sli3.local_getidx == pring->sli.sli3.next_cmdidx)
1714 return lpfc_cmd_iocb(phba, pring);
1718 * lpfc_sli_next_iotag - Get an iotag for the iocb
1719 * @phba: Pointer to HBA context object.
1720 * @iocbq: Pointer to driver iocb object.
1722 * This function gets an iotag for the iocb. If there is no unused iotag and
1723 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
1724 * array and assigns a new iotag.
1725 * The function returns the allocated iotag if successful, else returns zero.
1726 * Zero is not a valid iotag.
1727 * The caller is not required to hold any lock.
1730 lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1732 struct lpfc_iocbq **new_arr;
1733 struct lpfc_iocbq **old_arr;
1735 struct lpfc_sli *psli = &phba->sli;
1738 spin_lock_irq(&phba->hbalock);
1739 iotag = psli->last_iotag;
1740 if(++iotag < psli->iocbq_lookup_len) {
1741 psli->last_iotag = iotag;
1742 psli->iocbq_lookup[iotag] = iocbq;
1743 spin_unlock_irq(&phba->hbalock);
1744 iocbq->iotag = iotag;
1746 } else if (psli->iocbq_lookup_len < (0xffff
1747 - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
1748 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
1749 spin_unlock_irq(&phba->hbalock);
1750 new_arr = kcalloc(new_len, sizeof(struct lpfc_iocbq *),
1753 spin_lock_irq(&phba->hbalock);
1754 old_arr = psli->iocbq_lookup;
1755 if (new_len <= psli->iocbq_lookup_len) {
1756 /* highly unprobable case */
1758 iotag = psli->last_iotag;
1759 if(++iotag < psli->iocbq_lookup_len) {
1760 psli->last_iotag = iotag;
1761 psli->iocbq_lookup[iotag] = iocbq;
1762 spin_unlock_irq(&phba->hbalock);
1763 iocbq->iotag = iotag;
1766 spin_unlock_irq(&phba->hbalock);
1769 if (psli->iocbq_lookup)
1770 memcpy(new_arr, old_arr,
1771 ((psli->last_iotag + 1) *
1772 sizeof (struct lpfc_iocbq *)));
1773 psli->iocbq_lookup = new_arr;
1774 psli->iocbq_lookup_len = new_len;
1775 psli->last_iotag = iotag;
1776 psli->iocbq_lookup[iotag] = iocbq;
1777 spin_unlock_irq(&phba->hbalock);
1778 iocbq->iotag = iotag;
1783 spin_unlock_irq(&phba->hbalock);
1785 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
1786 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1793 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
1794 * @phba: Pointer to HBA context object.
1795 * @pring: Pointer to driver SLI ring object.
1796 * @iocb: Pointer to iocb slot in the ring.
1797 * @nextiocb: Pointer to driver iocb object which need to be
1798 * posted to firmware.
1800 * This function is called with hbalock held to post a new iocb to
1801 * the firmware. This function copies the new iocb to ring iocb slot and
1802 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1803 * a completion call back for this iocb else the function will free the
1807 lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1808 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
1810 lockdep_assert_held(&phba->hbalock);
1814 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
1817 if (pring->ringno == LPFC_ELS_RING) {
1818 lpfc_debugfs_slow_ring_trc(phba,
1819 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1820 *(((uint32_t *) &nextiocb->iocb) + 4),
1821 *(((uint32_t *) &nextiocb->iocb) + 6),
1822 *(((uint32_t *) &nextiocb->iocb) + 7));
1826 * Issue iocb command to adapter
1828 lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
1830 pring->stats.iocb_cmd++;
1833 * If there is no completion routine to call, we can release the
1834 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1835 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1837 if (nextiocb->iocb_cmpl)
1838 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
1840 __lpfc_sli_release_iocbq(phba, nextiocb);
1843 * Let the HBA know what IOCB slot will be the next one the
1844 * driver will put a command into.
1846 pring->sli.sli3.cmdidx = pring->sli.sli3.next_cmdidx;
1847 writel(pring->sli.sli3.cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
1851 * lpfc_sli_update_full_ring - Update the chip attention register
1852 * @phba: Pointer to HBA context object.
1853 * @pring: Pointer to driver SLI ring object.
1855 * The caller is not required to hold any lock for calling this function.
1856 * This function updates the chip attention bits for the ring to inform firmware
1857 * that there are pending work to be done for this ring and requests an
1858 * interrupt when there is space available in the ring. This function is
1859 * called when the driver is unable to post more iocbs to the ring due
1860 * to unavailability of space in the ring.
1863 lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1865 int ringno = pring->ringno;
1867 pring->flag |= LPFC_CALL_RING_AVAILABLE;
1872 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1873 * The HBA will tell us when an IOCB entry is available.
1875 writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
1876 readl(phba->CAregaddr); /* flush */
1878 pring->stats.iocb_cmd_full++;
1882 * lpfc_sli_update_ring - Update chip attention register
1883 * @phba: Pointer to HBA context object.
1884 * @pring: Pointer to driver SLI ring object.
1886 * This function updates the chip attention register bit for the
1887 * given ring to inform HBA that there is more work to be done
1888 * in this ring. The caller is not required to hold any lock.
1891 lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1893 int ringno = pring->ringno;
1896 * Tell the HBA that there is work to do in this ring.
1898 if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
1900 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
1901 readl(phba->CAregaddr); /* flush */
1906 * lpfc_sli_resume_iocb - Process iocbs in the txq
1907 * @phba: Pointer to HBA context object.
1908 * @pring: Pointer to driver SLI ring object.
1910 * This function is called with hbalock held to post pending iocbs
1911 * in the txq to the firmware. This function is called when driver
1912 * detects space available in the ring.
1915 lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1918 struct lpfc_iocbq *nextiocb;
1920 lockdep_assert_held(&phba->hbalock);
1924 * (a) there is anything on the txq to send
1926 * (c) link attention events can be processed (fcp ring only)
1927 * (d) IOCB processing is not blocked by the outstanding mbox command.
1930 if (lpfc_is_link_up(phba) &&
1931 (!list_empty(&pring->txq)) &&
1932 (pring->ringno != LPFC_FCP_RING ||
1933 phba->sli.sli_flag & LPFC_PROCESS_LA)) {
1935 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
1936 (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
1937 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
1940 lpfc_sli_update_ring(phba, pring);
1942 lpfc_sli_update_full_ring(phba, pring);
1949 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
1950 * @phba: Pointer to HBA context object.
1951 * @hbqno: HBQ number.
1953 * This function is called with hbalock held to get the next
1954 * available slot for the given HBQ. If there is free slot
1955 * available for the HBQ it will return pointer to the next available
1956 * HBQ entry else it will return NULL.
1958 static struct lpfc_hbq_entry *
1959 lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
1961 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1963 lockdep_assert_held(&phba->hbalock);
1965 if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
1966 ++hbqp->next_hbqPutIdx >= hbqp->entry_count)
1967 hbqp->next_hbqPutIdx = 0;
1969 if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
1970 uint32_t raw_index = phba->hbq_get[hbqno];
1971 uint32_t getidx = le32_to_cpu(raw_index);
1973 hbqp->local_hbqGetIdx = getidx;
1975 if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
1976 lpfc_printf_log(phba, KERN_ERR,
1977 LOG_SLI | LOG_VPORT,
1978 "1802 HBQ %d: local_hbqGetIdx "
1979 "%u is > than hbqp->entry_count %u\n",
1980 hbqno, hbqp->local_hbqGetIdx,
1983 phba->link_state = LPFC_HBA_ERROR;
1987 if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
1991 return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
1996 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
1997 * @phba: Pointer to HBA context object.
1999 * This function is called with no lock held to free all the
2000 * hbq buffers while uninitializing the SLI interface. It also
2001 * frees the HBQ buffers returned by the firmware but not yet
2002 * processed by the upper layers.
2005 lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
2007 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
2008 struct hbq_dmabuf *hbq_buf;
2009 unsigned long flags;
2012 hbq_count = lpfc_sli_hbq_count();
2013 /* Return all memory used by all HBQs */
2014 spin_lock_irqsave(&phba->hbalock, flags);
2015 for (i = 0; i < hbq_count; ++i) {
2016 list_for_each_entry_safe(dmabuf, next_dmabuf,
2017 &phba->hbqs[i].hbq_buffer_list, list) {
2018 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
2019 list_del(&hbq_buf->dbuf.list);
2020 (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
2022 phba->hbqs[i].buffer_count = 0;
2025 /* Mark the HBQs not in use */
2026 phba->hbq_in_use = 0;
2027 spin_unlock_irqrestore(&phba->hbalock, flags);
2031 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
2032 * @phba: Pointer to HBA context object.
2033 * @hbqno: HBQ number.
2034 * @hbq_buf: Pointer to HBQ buffer.
2036 * This function is called with the hbalock held to post a
2037 * hbq buffer to the firmware. If the function finds an empty
2038 * slot in the HBQ, it will post the buffer. The function will return
2039 * pointer to the hbq entry if it successfully post the buffer
2040 * else it will return NULL.
2043 lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
2044 struct hbq_dmabuf *hbq_buf)
2046 lockdep_assert_held(&phba->hbalock);
2047 return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
2051 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
2052 * @phba: Pointer to HBA context object.
2053 * @hbqno: HBQ number.
2054 * @hbq_buf: Pointer to HBQ buffer.
2056 * This function is called with the hbalock held to post a hbq buffer to the
2057 * firmware. If the function finds an empty slot in the HBQ, it will post the
2058 * buffer and place it on the hbq_buffer_list. The function will return zero if
2059 * it successfully post the buffer else it will return an error.
2062 lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
2063 struct hbq_dmabuf *hbq_buf)
2065 struct lpfc_hbq_entry *hbqe;
2066 dma_addr_t physaddr = hbq_buf->dbuf.phys;
2068 lockdep_assert_held(&phba->hbalock);
2069 /* Get next HBQ entry slot to use */
2070 hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
2072 struct hbq_s *hbqp = &phba->hbqs[hbqno];
2074 hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
2075 hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
2076 hbqe->bde.tus.f.bdeSize = hbq_buf->total_size;
2077 hbqe->bde.tus.f.bdeFlags = 0;
2078 hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
2079 hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
2081 hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
2082 writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
2084 readl(phba->hbq_put + hbqno);
2085 list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
2092 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
2093 * @phba: Pointer to HBA context object.
2094 * @hbqno: HBQ number.
2095 * @hbq_buf: Pointer to HBQ buffer.
2097 * This function is called with the hbalock held to post an RQE to the SLI4
2098 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
2099 * the hbq_buffer_list and return zero, otherwise it will return an error.
2102 lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
2103 struct hbq_dmabuf *hbq_buf)
2106 struct lpfc_rqe hrqe;
2107 struct lpfc_rqe drqe;
2108 struct lpfc_queue *hrq;
2109 struct lpfc_queue *drq;
2111 if (hbqno != LPFC_ELS_HBQ)
2113 hrq = phba->sli4_hba.hdr_rq;
2114 drq = phba->sli4_hba.dat_rq;
2116 lockdep_assert_held(&phba->hbalock);
2117 hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
2118 hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
2119 drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
2120 drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
2121 rc = lpfc_sli4_rq_put(hrq, drq, &hrqe, &drqe);
2124 hbq_buf->tag = (rc | (hbqno << 16));
2125 list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
2129 /* HBQ for ELS and CT traffic. */
2130 static struct lpfc_hbq_init lpfc_els_hbq = {
2135 .ring_mask = (1 << LPFC_ELS_RING),
2142 struct lpfc_hbq_init *lpfc_hbq_defs[] = {
2147 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
2148 * @phba: Pointer to HBA context object.
2149 * @hbqno: HBQ number.
2150 * @count: Number of HBQ buffers to be posted.
2152 * This function is called with no lock held to post more hbq buffers to the
2153 * given HBQ. The function returns the number of HBQ buffers successfully
2157 lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
2159 uint32_t i, posted = 0;
2160 unsigned long flags;
2161 struct hbq_dmabuf *hbq_buffer;
2162 LIST_HEAD(hbq_buf_list);
2163 if (!phba->hbqs[hbqno].hbq_alloc_buffer)
2166 if ((phba->hbqs[hbqno].buffer_count + count) >
2167 lpfc_hbq_defs[hbqno]->entry_count)
2168 count = lpfc_hbq_defs[hbqno]->entry_count -
2169 phba->hbqs[hbqno].buffer_count;
2172 /* Allocate HBQ entries */
2173 for (i = 0; i < count; i++) {
2174 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
2177 list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
2179 /* Check whether HBQ is still in use */
2180 spin_lock_irqsave(&phba->hbalock, flags);
2181 if (!phba->hbq_in_use)
2183 while (!list_empty(&hbq_buf_list)) {
2184 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
2186 hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
2188 if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
2189 phba->hbqs[hbqno].buffer_count++;
2192 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
2194 spin_unlock_irqrestore(&phba->hbalock, flags);
2197 spin_unlock_irqrestore(&phba->hbalock, flags);
2198 while (!list_empty(&hbq_buf_list)) {
2199 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
2201 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
2207 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
2208 * @phba: Pointer to HBA context object.
2211 * This function posts more buffers to the HBQ. This function
2212 * is called with no lock held. The function returns the number of HBQ entries
2213 * successfully allocated.
2216 lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
2218 if (phba->sli_rev == LPFC_SLI_REV4)
2221 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
2222 lpfc_hbq_defs[qno]->add_count);
2226 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
2227 * @phba: Pointer to HBA context object.
2228 * @qno: HBQ queue number.
2230 * This function is called from SLI initialization code path with
2231 * no lock held to post initial HBQ buffers to firmware. The
2232 * function returns the number of HBQ entries successfully allocated.
2235 lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
2237 if (phba->sli_rev == LPFC_SLI_REV4)
2238 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
2239 lpfc_hbq_defs[qno]->entry_count);
2241 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
2242 lpfc_hbq_defs[qno]->init_count);
2246 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
2247 * @phba: Pointer to HBA context object.
2248 * @hbqno: HBQ number.
2250 * This function removes the first hbq buffer on an hbq list and returns a
2251 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
2253 static struct hbq_dmabuf *
2254 lpfc_sli_hbqbuf_get(struct list_head *rb_list)
2256 struct lpfc_dmabuf *d_buf;
2258 list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
2261 return container_of(d_buf, struct hbq_dmabuf, dbuf);
2265 * lpfc_sli_rqbuf_get - Remove the first dma buffer off of an RQ list
2266 * @phba: Pointer to HBA context object.
2267 * @hbqno: HBQ number.
2269 * This function removes the first RQ buffer on an RQ buffer list and returns a
2270 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
2272 static struct rqb_dmabuf *
2273 lpfc_sli_rqbuf_get(struct lpfc_hba *phba, struct lpfc_queue *hrq)
2275 struct lpfc_dmabuf *h_buf;
2276 struct lpfc_rqb *rqbp;
2279 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
2280 struct lpfc_dmabuf, list);
2283 rqbp->buffer_count--;
2284 return container_of(h_buf, struct rqb_dmabuf, hbuf);
2288 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
2289 * @phba: Pointer to HBA context object.
2290 * @tag: Tag of the hbq buffer.
2292 * This function searches for the hbq buffer associated with the given tag in
2293 * the hbq buffer list. If it finds the hbq buffer, it returns the hbq_buffer
2294 * otherwise it returns NULL.
2296 static struct hbq_dmabuf *
2297 lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
2299 struct lpfc_dmabuf *d_buf;
2300 struct hbq_dmabuf *hbq_buf;
2304 if (hbqno >= LPFC_MAX_HBQS)
2307 spin_lock_irq(&phba->hbalock);
2308 list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
2309 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
2310 if (hbq_buf->tag == tag) {
2311 spin_unlock_irq(&phba->hbalock);
2315 spin_unlock_irq(&phba->hbalock);
2316 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT,
2317 "1803 Bad hbq tag. Data: x%x x%x\n",
2318 tag, phba->hbqs[tag >> 16].buffer_count);
2323 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
2324 * @phba: Pointer to HBA context object.
2325 * @hbq_buffer: Pointer to HBQ buffer.
2327 * This function is called with hbalock. This function gives back
2328 * the hbq buffer to firmware. If the HBQ does not have space to
2329 * post the buffer, it will free the buffer.
2332 lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
2337 hbqno = hbq_buffer->tag >> 16;
2338 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
2339 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
2344 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
2345 * @mbxCommand: mailbox command code.
2347 * This function is called by the mailbox event handler function to verify
2348 * that the completed mailbox command is a legitimate mailbox command. If the
2349 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
2350 * and the mailbox event handler will take the HBA offline.
2353 lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
2357 switch (mbxCommand) {
2361 case MBX_WRITE_VPARMS:
2362 case MBX_RUN_BIU_DIAG:
2365 case MBX_CONFIG_LINK:
2366 case MBX_CONFIG_RING:
2367 case MBX_RESET_RING:
2368 case MBX_READ_CONFIG:
2369 case MBX_READ_RCONFIG:
2370 case MBX_READ_SPARM:
2371 case MBX_READ_STATUS:
2375 case MBX_READ_LNK_STAT:
2377 case MBX_UNREG_LOGIN:
2379 case MBX_DUMP_MEMORY:
2380 case MBX_DUMP_CONTEXT:
2383 case MBX_UPDATE_CFG:
2385 case MBX_DEL_LD_ENTRY:
2386 case MBX_RUN_PROGRAM:
2388 case MBX_SET_VARIABLE:
2389 case MBX_UNREG_D_ID:
2390 case MBX_KILL_BOARD:
2391 case MBX_CONFIG_FARP:
2394 case MBX_RUN_BIU_DIAG64:
2395 case MBX_CONFIG_PORT:
2396 case MBX_READ_SPARM64:
2397 case MBX_READ_RPI64:
2398 case MBX_REG_LOGIN64:
2399 case MBX_READ_TOPOLOGY:
2402 case MBX_LOAD_EXP_ROM:
2403 case MBX_ASYNCEVT_ENABLE:
2407 case MBX_PORT_CAPABILITIES:
2408 case MBX_PORT_IOV_CONTROL:
2409 case MBX_SLI4_CONFIG:
2410 case MBX_SLI4_REQ_FTRS:
2412 case MBX_UNREG_FCFI:
2417 case MBX_RESUME_RPI:
2418 case MBX_READ_EVENT_LOG_STATUS:
2419 case MBX_READ_EVENT_LOG:
2420 case MBX_SECURITY_MGMT:
2422 case MBX_ACCESS_VDATA:
2433 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
2434 * @phba: Pointer to HBA context object.
2435 * @pmboxq: Pointer to mailbox command.
2437 * This is completion handler function for mailbox commands issued from
2438 * lpfc_sli_issue_mbox_wait function. This function is called by the
2439 * mailbox event handler function with no lock held. This function
2440 * will wake up thread waiting on the wait queue pointed by context1
2444 lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
2446 unsigned long drvr_flag;
2447 struct completion *pmbox_done;
2450 * If pmbox_done is empty, the driver thread gave up waiting and
2451 * continued running.
2453 pmboxq->mbox_flag |= LPFC_MBX_WAKE;
2454 spin_lock_irqsave(&phba->hbalock, drvr_flag);
2455 pmbox_done = (struct completion *)pmboxq->context3;
2457 complete(pmbox_done);
2458 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
2463 __lpfc_sli_rpi_release(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
2465 unsigned long iflags;
2467 if (ndlp->nlp_flag & NLP_RELEASE_RPI) {
2468 lpfc_sli4_free_rpi(vport->phba, ndlp->nlp_rpi);
2469 spin_lock_irqsave(&vport->phba->ndlp_lock, iflags);
2470 ndlp->nlp_flag &= ~NLP_RELEASE_RPI;
2471 ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
2472 spin_unlock_irqrestore(&vport->phba->ndlp_lock, iflags);
2474 ndlp->nlp_flag &= ~NLP_UNREG_INP;
2478 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
2479 * @phba: Pointer to HBA context object.
2480 * @pmb: Pointer to mailbox object.
2482 * This function is the default mailbox completion handler. It
2483 * frees the memory resources associated with the completed mailbox
2484 * command. If the completed command is a REG_LOGIN mailbox command,
2485 * this function will issue a UREG_LOGIN to re-claim the RPI.
2488 lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2490 struct lpfc_vport *vport = pmb->vport;
2491 struct lpfc_dmabuf *mp;
2492 struct lpfc_nodelist *ndlp;
2493 struct Scsi_Host *shost;
2497 mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
2500 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2505 * If a REG_LOGIN succeeded after node is destroyed or node
2506 * is in re-discovery driver need to cleanup the RPI.
2508 if (!(phba->pport->load_flag & FC_UNLOADING) &&
2509 pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
2510 !pmb->u.mb.mbxStatus) {
2511 rpi = pmb->u.mb.un.varWords[0];
2512 vpi = pmb->u.mb.un.varRegLogin.vpi;
2513 lpfc_unreg_login(phba, vpi, rpi, pmb);
2515 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2516 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2517 if (rc != MBX_NOT_FINISHED)
2521 if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) &&
2522 !(phba->pport->load_flag & FC_UNLOADING) &&
2523 !pmb->u.mb.mbxStatus) {
2524 shost = lpfc_shost_from_vport(vport);
2525 spin_lock_irq(shost->host_lock);
2526 vport->vpi_state |= LPFC_VPI_REGISTERED;
2527 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
2528 spin_unlock_irq(shost->host_lock);
2531 if (pmb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
2532 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
2534 pmb->ctx_buf = NULL;
2535 pmb->ctx_ndlp = NULL;
2538 if (pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) {
2539 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
2541 /* Check to see if there are any deferred events to process */
2545 KERN_INFO, LOG_MBOX | LOG_DISCOVERY,
2546 "1438 UNREG cmpl deferred mbox x%x "
2547 "on NPort x%x Data: x%x x%x %px\n",
2548 ndlp->nlp_rpi, ndlp->nlp_DID,
2549 ndlp->nlp_flag, ndlp->nlp_defer_did, ndlp);
2551 if ((ndlp->nlp_flag & NLP_UNREG_INP) &&
2552 (ndlp->nlp_defer_did != NLP_EVT_NOTHING_PENDING)) {
2553 ndlp->nlp_flag &= ~NLP_UNREG_INP;
2554 ndlp->nlp_defer_did = NLP_EVT_NOTHING_PENDING;
2555 lpfc_issue_els_plogi(vport, ndlp->nlp_DID, 0);
2557 __lpfc_sli_rpi_release(vport, ndlp);
2559 if (vport->load_flag & FC_UNLOADING)
2561 pmb->ctx_ndlp = NULL;
2565 /* Check security permission status on INIT_LINK mailbox command */
2566 if ((pmb->u.mb.mbxCommand == MBX_INIT_LINK) &&
2567 (pmb->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
2568 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2569 "2860 SLI authentication is required "
2570 "for INIT_LINK but has not done yet\n");
2572 if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
2573 lpfc_sli4_mbox_cmd_free(phba, pmb);
2575 mempool_free(pmb, phba->mbox_mem_pool);
2578 * lpfc_sli4_unreg_rpi_cmpl_clr - mailbox completion handler
2579 * @phba: Pointer to HBA context object.
2580 * @pmb: Pointer to mailbox object.
2582 * This function is the unreg rpi mailbox completion handler. It
2583 * frees the memory resources associated with the completed mailbox
2584 * command. An additional refrenece is put on the ndlp to prevent
2585 * lpfc_nlp_release from freeing the rpi bit in the bitmask before
2586 * the unreg mailbox command completes, this routine puts the
2591 lpfc_sli4_unreg_rpi_cmpl_clr(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2593 struct lpfc_vport *vport = pmb->vport;
2594 struct lpfc_nodelist *ndlp;
2596 ndlp = pmb->ctx_ndlp;
2597 if (pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) {
2598 if (phba->sli_rev == LPFC_SLI_REV4 &&
2599 (bf_get(lpfc_sli_intf_if_type,
2600 &phba->sli4_hba.sli_intf) >=
2601 LPFC_SLI_INTF_IF_TYPE_2)) {
2604 vport, KERN_INFO, LOG_MBOX | LOG_SLI,
2605 "0010 UNREG_LOGIN vpi:%x "
2606 "rpi:%x DID:%x defer x%x flg x%x "
2608 vport->vpi, ndlp->nlp_rpi,
2609 ndlp->nlp_DID, ndlp->nlp_defer_did,
2611 ndlp->nlp_usg_map, ndlp);
2612 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
2615 /* Check to see if there are any deferred
2618 if ((ndlp->nlp_flag & NLP_UNREG_INP) &&
2619 (ndlp->nlp_defer_did !=
2620 NLP_EVT_NOTHING_PENDING)) {
2622 vport, KERN_INFO, LOG_DISCOVERY,
2623 "4111 UNREG cmpl deferred "
2625 "NPort x%x Data: x%x x%px\n",
2626 ndlp->nlp_rpi, ndlp->nlp_DID,
2627 ndlp->nlp_defer_did, ndlp);
2628 ndlp->nlp_flag &= ~NLP_UNREG_INP;
2629 ndlp->nlp_defer_did =
2630 NLP_EVT_NOTHING_PENDING;
2631 lpfc_issue_els_plogi(
2632 vport, ndlp->nlp_DID, 0);
2634 __lpfc_sli_rpi_release(vport, ndlp);
2640 mempool_free(pmb, phba->mbox_mem_pool);
2644 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
2645 * @phba: Pointer to HBA context object.
2647 * This function is called with no lock held. This function processes all
2648 * the completed mailbox commands and gives it to upper layers. The interrupt
2649 * service routine processes mailbox completion interrupt and adds completed
2650 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
2651 * Worker thread call lpfc_sli_handle_mb_event, which will return the
2652 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
2653 * function returns the mailbox commands to the upper layer by calling the
2654 * completion handler function of each mailbox.
2657 lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
2664 phba->sli.slistat.mbox_event++;
2666 /* Get all completed mailboxe buffers into the cmplq */
2667 spin_lock_irq(&phba->hbalock);
2668 list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
2669 spin_unlock_irq(&phba->hbalock);
2671 /* Get a Mailbox buffer to setup mailbox commands for callback */
2673 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
2679 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
2681 lpfc_debugfs_disc_trc(pmb->vport,
2682 LPFC_DISC_TRC_MBOX_VPORT,
2683 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
2684 (uint32_t)pmbox->mbxCommand,
2685 pmbox->un.varWords[0],
2686 pmbox->un.varWords[1]);
2689 lpfc_debugfs_disc_trc(phba->pport,
2691 "MBOX cmpl: cmd:x%x mb:x%x x%x",
2692 (uint32_t)pmbox->mbxCommand,
2693 pmbox->un.varWords[0],
2694 pmbox->un.varWords[1]);
2699 * It is a fatal error if unknown mbox command completion.
2701 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
2703 /* Unknown mailbox command compl */
2704 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2705 "(%d):0323 Unknown Mailbox command "
2706 "x%x (x%x/x%x) Cmpl\n",
2707 pmb->vport ? pmb->vport->vpi :
2710 lpfc_sli_config_mbox_subsys_get(phba,
2712 lpfc_sli_config_mbox_opcode_get(phba,
2714 phba->link_state = LPFC_HBA_ERROR;
2715 phba->work_hs = HS_FFER3;
2716 lpfc_handle_eratt(phba);
2720 if (pmbox->mbxStatus) {
2721 phba->sli.slistat.mbox_stat_err++;
2722 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
2723 /* Mbox cmd cmpl error - RETRYing */
2724 lpfc_printf_log(phba, KERN_INFO,
2726 "(%d):0305 Mbox cmd cmpl "
2727 "error - RETRYing Data: x%x "
2728 "(x%x/x%x) x%x x%x x%x\n",
2729 pmb->vport ? pmb->vport->vpi :
2732 lpfc_sli_config_mbox_subsys_get(phba,
2734 lpfc_sli_config_mbox_opcode_get(phba,
2737 pmbox->un.varWords[0],
2738 pmb->vport ? pmb->vport->port_state :
2739 LPFC_VPORT_UNKNOWN);
2740 pmbox->mbxStatus = 0;
2741 pmbox->mbxOwner = OWN_HOST;
2742 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2743 if (rc != MBX_NOT_FINISHED)
2748 /* Mailbox cmd <cmd> Cmpl <cmpl> */
2749 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
2750 "(%d):0307 Mailbox cmd x%x (x%x/x%x) Cmpl %ps "
2751 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
2753 pmb->vport ? pmb->vport->vpi : 0,
2755 lpfc_sli_config_mbox_subsys_get(phba, pmb),
2756 lpfc_sli_config_mbox_opcode_get(phba, pmb),
2758 *((uint32_t *) pmbox),
2759 pmbox->un.varWords[0],
2760 pmbox->un.varWords[1],
2761 pmbox->un.varWords[2],
2762 pmbox->un.varWords[3],
2763 pmbox->un.varWords[4],
2764 pmbox->un.varWords[5],
2765 pmbox->un.varWords[6],
2766 pmbox->un.varWords[7],
2767 pmbox->un.varWords[8],
2768 pmbox->un.varWords[9],
2769 pmbox->un.varWords[10]);
2772 pmb->mbox_cmpl(phba,pmb);
2778 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
2779 * @phba: Pointer to HBA context object.
2780 * @pring: Pointer to driver SLI ring object.
2783 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
2784 * is set in the tag the buffer is posted for a particular exchange,
2785 * the function will return the buffer without replacing the buffer.
2786 * If the buffer is for unsolicited ELS or CT traffic, this function
2787 * returns the buffer and also posts another buffer to the firmware.
2789 static struct lpfc_dmabuf *
2790 lpfc_sli_get_buff(struct lpfc_hba *phba,
2791 struct lpfc_sli_ring *pring,
2794 struct hbq_dmabuf *hbq_entry;
2796 if (tag & QUE_BUFTAG_BIT)
2797 return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
2798 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
2801 return &hbq_entry->dbuf;
2805 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
2806 * @phba: Pointer to HBA context object.
2807 * @pring: Pointer to driver SLI ring object.
2808 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
2809 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
2810 * @fch_type: the type for the first frame of the sequence.
2812 * This function is called with no lock held. This function uses the r_ctl and
2813 * type of the received sequence to find the correct callback function to call
2814 * to process the sequence.
2817 lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2818 struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
2825 lpfc_nvmet_unsol_ls_event(phba, pring, saveq);
2831 /* unSolicited Responses */
2832 if (pring->prt[0].profile) {
2833 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
2834 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
2838 /* We must search, based on rctl / type
2839 for the right routine */
2840 for (i = 0; i < pring->num_mask; i++) {
2841 if ((pring->prt[i].rctl == fch_r_ctl) &&
2842 (pring->prt[i].type == fch_type)) {
2843 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
2844 (pring->prt[i].lpfc_sli_rcv_unsol_event)
2845 (phba, pring, saveq);
2853 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
2854 * @phba: Pointer to HBA context object.
2855 * @pring: Pointer to driver SLI ring object.
2856 * @saveq: Pointer to the unsolicited iocb.
2858 * This function is called with no lock held by the ring event handler
2859 * when there is an unsolicited iocb posted to the response ring by the
2860 * firmware. This function gets the buffer associated with the iocbs
2861 * and calls the event handler for the ring. This function handles both
2862 * qring buffers and hbq buffers.
2863 * When the function returns 1 the caller can free the iocb object otherwise
2864 * upper layer functions will free the iocb objects.
2867 lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2868 struct lpfc_iocbq *saveq)
2872 uint32_t Rctl, Type;
2873 struct lpfc_iocbq *iocbq;
2874 struct lpfc_dmabuf *dmzbuf;
2876 irsp = &(saveq->iocb);
2878 if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
2879 if (pring->lpfc_sli_rcv_async_status)
2880 pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
2882 lpfc_printf_log(phba,
2885 "0316 Ring %d handler: unexpected "
2886 "ASYNC_STATUS iocb received evt_code "
2889 irsp->un.asyncstat.evt_code);
2893 if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
2894 (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
2895 if (irsp->ulpBdeCount > 0) {
2896 dmzbuf = lpfc_sli_get_buff(phba, pring,
2897 irsp->un.ulpWord[3]);
2898 lpfc_in_buf_free(phba, dmzbuf);
2901 if (irsp->ulpBdeCount > 1) {
2902 dmzbuf = lpfc_sli_get_buff(phba, pring,
2903 irsp->unsli3.sli3Words[3]);
2904 lpfc_in_buf_free(phba, dmzbuf);
2907 if (irsp->ulpBdeCount > 2) {
2908 dmzbuf = lpfc_sli_get_buff(phba, pring,
2909 irsp->unsli3.sli3Words[7]);
2910 lpfc_in_buf_free(phba, dmzbuf);
2916 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
2917 if (irsp->ulpBdeCount != 0) {
2918 saveq->context2 = lpfc_sli_get_buff(phba, pring,
2919 irsp->un.ulpWord[3]);
2920 if (!saveq->context2)
2921 lpfc_printf_log(phba,
2924 "0341 Ring %d Cannot find buffer for "
2925 "an unsolicited iocb. tag 0x%x\n",
2927 irsp->un.ulpWord[3]);
2929 if (irsp->ulpBdeCount == 2) {
2930 saveq->context3 = lpfc_sli_get_buff(phba, pring,
2931 irsp->unsli3.sli3Words[7]);
2932 if (!saveq->context3)
2933 lpfc_printf_log(phba,
2936 "0342 Ring %d Cannot find buffer for an"
2937 " unsolicited iocb. tag 0x%x\n",
2939 irsp->unsli3.sli3Words[7]);
2941 list_for_each_entry(iocbq, &saveq->list, list) {
2942 irsp = &(iocbq->iocb);
2943 if (irsp->ulpBdeCount != 0) {
2944 iocbq->context2 = lpfc_sli_get_buff(phba, pring,
2945 irsp->un.ulpWord[3]);
2946 if (!iocbq->context2)
2947 lpfc_printf_log(phba,
2950 "0343 Ring %d Cannot find "
2951 "buffer for an unsolicited iocb"
2952 ". tag 0x%x\n", pring->ringno,
2953 irsp->un.ulpWord[3]);
2955 if (irsp->ulpBdeCount == 2) {
2956 iocbq->context3 = lpfc_sli_get_buff(phba, pring,
2957 irsp->unsli3.sli3Words[7]);
2958 if (!iocbq->context3)
2959 lpfc_printf_log(phba,
2962 "0344 Ring %d Cannot find "
2963 "buffer for an unsolicited "
2966 irsp->unsli3.sli3Words[7]);
2970 if (irsp->ulpBdeCount != 0 &&
2971 (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
2972 irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
2975 /* search continue save q for same XRI */
2976 list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
2977 if (iocbq->iocb.unsli3.rcvsli3.ox_id ==
2978 saveq->iocb.unsli3.rcvsli3.ox_id) {
2979 list_add_tail(&saveq->list, &iocbq->list);
2985 list_add_tail(&saveq->clist,
2986 &pring->iocb_continue_saveq);
2987 if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
2988 list_del_init(&iocbq->clist);
2990 irsp = &(saveq->iocb);
2994 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
2995 (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
2996 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
2997 Rctl = FC_RCTL_ELS_REQ;
3000 w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
3001 Rctl = w5p->hcsw.Rctl;
3002 Type = w5p->hcsw.Type;
3004 /* Firmware Workaround */
3005 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
3006 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
3007 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
3008 Rctl = FC_RCTL_ELS_REQ;
3010 w5p->hcsw.Rctl = Rctl;
3011 w5p->hcsw.Type = Type;
3015 if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
3016 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3017 "0313 Ring %d handler: unexpected Rctl x%x "
3018 "Type x%x received\n",
3019 pring->ringno, Rctl, Type);
3025 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
3026 * @phba: Pointer to HBA context object.
3027 * @pring: Pointer to driver SLI ring object.
3028 * @prspiocb: Pointer to response iocb object.
3030 * This function looks up the iocb_lookup table to get the command iocb
3031 * corresponding to the given response iocb using the iotag of the
3032 * response iocb. The driver calls this function with the hbalock held
3033 * for SLI3 ports or the ring lock held for SLI4 ports.
3034 * This function returns the command iocb object if it finds the command
3035 * iocb else returns NULL.
3037 static struct lpfc_iocbq *
3038 lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
3039 struct lpfc_sli_ring *pring,
3040 struct lpfc_iocbq *prspiocb)
3042 struct lpfc_iocbq *cmd_iocb = NULL;
3044 spinlock_t *temp_lock = NULL;
3045 unsigned long iflag = 0;
3047 if (phba->sli_rev == LPFC_SLI_REV4)
3048 temp_lock = &pring->ring_lock;
3050 temp_lock = &phba->hbalock;
3052 spin_lock_irqsave(temp_lock, iflag);
3053 iotag = prspiocb->iocb.ulpIoTag;
3055 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
3056 cmd_iocb = phba->sli.iocbq_lookup[iotag];
3057 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
3058 /* remove from txcmpl queue list */
3059 list_del_init(&cmd_iocb->list);
3060 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
3061 pring->txcmplq_cnt--;
3062 spin_unlock_irqrestore(temp_lock, iflag);
3067 spin_unlock_irqrestore(temp_lock, iflag);
3068 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3069 "0317 iotag x%x is out of "
3070 "range: max iotag x%x wd0 x%x\n",
3071 iotag, phba->sli.last_iotag,
3072 *(((uint32_t *) &prspiocb->iocb) + 7));
3077 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
3078 * @phba: Pointer to HBA context object.
3079 * @pring: Pointer to driver SLI ring object.
3082 * This function looks up the iocb_lookup table to get the command iocb
3083 * corresponding to the given iotag. The driver calls this function with
3084 * the ring lock held because this function is an SLI4 port only helper.
3085 * This function returns the command iocb object if it finds the command
3086 * iocb else returns NULL.
3088 static struct lpfc_iocbq *
3089 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
3090 struct lpfc_sli_ring *pring, uint16_t iotag)
3092 struct lpfc_iocbq *cmd_iocb = NULL;
3093 spinlock_t *temp_lock = NULL;
3094 unsigned long iflag = 0;
3096 if (phba->sli_rev == LPFC_SLI_REV4)
3097 temp_lock = &pring->ring_lock;
3099 temp_lock = &phba->hbalock;
3101 spin_lock_irqsave(temp_lock, iflag);
3102 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
3103 cmd_iocb = phba->sli.iocbq_lookup[iotag];
3104 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
3105 /* remove from txcmpl queue list */
3106 list_del_init(&cmd_iocb->list);
3107 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
3108 pring->txcmplq_cnt--;
3109 spin_unlock_irqrestore(temp_lock, iflag);
3114 spin_unlock_irqrestore(temp_lock, iflag);
3115 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3116 "0372 iotag x%x lookup error: max iotag (x%x) "
3118 iotag, phba->sli.last_iotag,
3119 cmd_iocb ? cmd_iocb->iocb_flag : 0xffff);
3124 * lpfc_sli_process_sol_iocb - process solicited iocb completion
3125 * @phba: Pointer to HBA context object.
3126 * @pring: Pointer to driver SLI ring object.
3127 * @saveq: Pointer to the response iocb to be processed.
3129 * This function is called by the ring event handler for non-fcp
3130 * rings when there is a new response iocb in the response ring.
3131 * The caller is not required to hold any locks. This function
3132 * gets the command iocb associated with the response iocb and
3133 * calls the completion handler for the command iocb. If there
3134 * is no completion handler, the function will free the resources
3135 * associated with command iocb. If the response iocb is for
3136 * an already aborted command iocb, the status of the completion
3137 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
3138 * This function always returns 1.
3141 lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3142 struct lpfc_iocbq *saveq)
3144 struct lpfc_iocbq *cmdiocbp;
3146 unsigned long iflag;
3148 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
3150 if (cmdiocbp->iocb_cmpl) {
3152 * If an ELS command failed send an event to mgmt
3155 if (saveq->iocb.ulpStatus &&
3156 (pring->ringno == LPFC_ELS_RING) &&
3157 (cmdiocbp->iocb.ulpCommand ==
3158 CMD_ELS_REQUEST64_CR))
3159 lpfc_send_els_failure_event(phba,
3163 * Post all ELS completions to the worker thread.
3164 * All other are passed to the completion callback.
3166 if (pring->ringno == LPFC_ELS_RING) {
3167 if ((phba->sli_rev < LPFC_SLI_REV4) &&
3168 (cmdiocbp->iocb_flag &
3169 LPFC_DRIVER_ABORTED)) {
3170 spin_lock_irqsave(&phba->hbalock,
3172 cmdiocbp->iocb_flag &=
3173 ~LPFC_DRIVER_ABORTED;
3174 spin_unlock_irqrestore(&phba->hbalock,
3176 saveq->iocb.ulpStatus =
3177 IOSTAT_LOCAL_REJECT;
3178 saveq->iocb.un.ulpWord[4] =
3181 /* Firmware could still be in progress
3182 * of DMAing payload, so don't free data
3183 * buffer till after a hbeat.
3185 spin_lock_irqsave(&phba->hbalock,
3187 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
3188 spin_unlock_irqrestore(&phba->hbalock,
3191 if (phba->sli_rev == LPFC_SLI_REV4) {
3192 if (saveq->iocb_flag &
3193 LPFC_EXCHANGE_BUSY) {
3194 /* Set cmdiocb flag for the
3195 * exchange busy so sgl (xri)
3196 * will not be released until
3197 * the abort xri is received
3201 &phba->hbalock, iflag);
3202 cmdiocbp->iocb_flag |=
3204 spin_unlock_irqrestore(
3205 &phba->hbalock, iflag);
3207 if (cmdiocbp->iocb_flag &
3208 LPFC_DRIVER_ABORTED) {
3210 * Clear LPFC_DRIVER_ABORTED
3211 * bit in case it was driver
3215 &phba->hbalock, iflag);
3216 cmdiocbp->iocb_flag &=
3217 ~LPFC_DRIVER_ABORTED;
3218 spin_unlock_irqrestore(
3219 &phba->hbalock, iflag);
3220 cmdiocbp->iocb.ulpStatus =
3221 IOSTAT_LOCAL_REJECT;
3222 cmdiocbp->iocb.un.ulpWord[4] =
3223 IOERR_ABORT_REQUESTED;
3225 * For SLI4, irsiocb contains
3226 * NO_XRI in sli_xritag, it
3227 * shall not affect releasing
3228 * sgl (xri) process.
3230 saveq->iocb.ulpStatus =
3231 IOSTAT_LOCAL_REJECT;
3232 saveq->iocb.un.ulpWord[4] =
3235 &phba->hbalock, iflag);
3237 LPFC_DELAY_MEM_FREE;
3238 spin_unlock_irqrestore(
3239 &phba->hbalock, iflag);
3243 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
3245 lpfc_sli_release_iocbq(phba, cmdiocbp);
3248 * Unknown initiating command based on the response iotag.
3249 * This could be the case on the ELS ring because of
3252 if (pring->ringno != LPFC_ELS_RING) {
3254 * Ring <ringno> handler: unexpected completion IoTag
3257 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3258 "0322 Ring %d handler: "
3259 "unexpected completion IoTag x%x "
3260 "Data: x%x x%x x%x x%x\n",
3262 saveq->iocb.ulpIoTag,
3263 saveq->iocb.ulpStatus,
3264 saveq->iocb.un.ulpWord[4],
3265 saveq->iocb.ulpCommand,
3266 saveq->iocb.ulpContext);
3274 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
3275 * @phba: Pointer to HBA context object.
3276 * @pring: Pointer to driver SLI ring object.
3278 * This function is called from the iocb ring event handlers when
3279 * put pointer is ahead of the get pointer for a ring. This function signal
3280 * an error attention condition to the worker thread and the worker
3281 * thread will transition the HBA to offline state.
3284 lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3286 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
3288 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
3289 * rsp ring <portRspMax>
3291 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3292 "0312 Ring %d handler: portRspPut %d "
3293 "is bigger than rsp ring %d\n",
3294 pring->ringno, le32_to_cpu(pgp->rspPutInx),
3295 pring->sli.sli3.numRiocb);
3297 phba->link_state = LPFC_HBA_ERROR;
3300 * All error attention handlers are posted to
3303 phba->work_ha |= HA_ERATT;
3304 phba->work_hs = HS_FFER3;
3306 lpfc_worker_wake_up(phba);
3312 * lpfc_poll_eratt - Error attention polling timer timeout handler
3313 * @ptr: Pointer to address of HBA context object.
3315 * This function is invoked by the Error Attention polling timer when the
3316 * timer times out. It will check the SLI Error Attention register for
3317 * possible attention events. If so, it will post an Error Attention event
3318 * and wake up worker thread to process it. Otherwise, it will set up the
3319 * Error Attention polling timer for the next poll.
3321 void lpfc_poll_eratt(struct timer_list *t)
3323 struct lpfc_hba *phba;
3325 uint64_t sli_intr, cnt;
3327 phba = from_timer(phba, t, eratt_poll);
3329 /* Here we will also keep track of interrupts per sec of the hba */
3330 sli_intr = phba->sli.slistat.sli_intr;
3332 if (phba->sli.slistat.sli_prev_intr > sli_intr)
3333 cnt = (((uint64_t)(-1) - phba->sli.slistat.sli_prev_intr) +
3336 cnt = (sli_intr - phba->sli.slistat.sli_prev_intr);
3338 /* 64-bit integer division not supported on 32-bit x86 - use do_div */
3339 do_div(cnt, phba->eratt_poll_interval);
3340 phba->sli.slistat.sli_ips = cnt;
3342 phba->sli.slistat.sli_prev_intr = sli_intr;
3344 /* Check chip HA register for error event */
3345 eratt = lpfc_sli_check_eratt(phba);
3348 /* Tell the worker thread there is work to do */
3349 lpfc_worker_wake_up(phba);
3351 /* Restart the timer for next eratt poll */
3352 mod_timer(&phba->eratt_poll,
3354 msecs_to_jiffies(1000 * phba->eratt_poll_interval));
3360 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
3361 * @phba: Pointer to HBA context object.
3362 * @pring: Pointer to driver SLI ring object.
3363 * @mask: Host attention register mask for this ring.
3365 * This function is called from the interrupt context when there is a ring
3366 * event for the fcp ring. The caller does not hold any lock.
3367 * The function processes each response iocb in the response ring until it
3368 * finds an iocb with LE bit set and chains all the iocbs up to the iocb with
3369 * LE bit set. The function will call the completion handler of the command iocb
3370 * if the response iocb indicates a completion for a command iocb or it is
3371 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
3372 * function if this is an unsolicited iocb.
3373 * This routine presumes LPFC_FCP_RING handling and doesn't bother
3374 * to check it explicitly.
3377 lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
3378 struct lpfc_sli_ring *pring, uint32_t mask)
3380 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
3381 IOCB_t *irsp = NULL;
3382 IOCB_t *entry = NULL;
3383 struct lpfc_iocbq *cmdiocbq = NULL;
3384 struct lpfc_iocbq rspiocbq;
3386 uint32_t portRspPut, portRspMax;
3388 lpfc_iocb_type type;
3389 unsigned long iflag;
3390 uint32_t rsp_cmpl = 0;
3392 spin_lock_irqsave(&phba->hbalock, iflag);
3393 pring->stats.iocb_event++;
3396 * The next available response entry should never exceed the maximum
3397 * entries. If it does, treat it as an adapter hardware error.
3399 portRspMax = pring->sli.sli3.numRiocb;
3400 portRspPut = le32_to_cpu(pgp->rspPutInx);
3401 if (unlikely(portRspPut >= portRspMax)) {
3402 lpfc_sli_rsp_pointers_error(phba, pring);
3403 spin_unlock_irqrestore(&phba->hbalock, iflag);
3406 if (phba->fcp_ring_in_use) {
3407 spin_unlock_irqrestore(&phba->hbalock, iflag);
3410 phba->fcp_ring_in_use = 1;
3413 while (pring->sli.sli3.rspidx != portRspPut) {
3415 * Fetch an entry off the ring and copy it into a local data
3416 * structure. The copy involves a byte-swap since the
3417 * network byte order and pci byte orders are different.
3419 entry = lpfc_resp_iocb(phba, pring);
3420 phba->last_completion_time = jiffies;
3422 if (++pring->sli.sli3.rspidx >= portRspMax)
3423 pring->sli.sli3.rspidx = 0;
3425 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
3426 (uint32_t *) &rspiocbq.iocb,
3427 phba->iocb_rsp_size);
3428 INIT_LIST_HEAD(&(rspiocbq.list));
3429 irsp = &rspiocbq.iocb;
3431 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
3432 pring->stats.iocb_rsp++;
3435 if (unlikely(irsp->ulpStatus)) {
3437 * If resource errors reported from HBA, reduce
3438 * queuedepths of the SCSI device.
3440 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3441 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3442 IOERR_NO_RESOURCES)) {
3443 spin_unlock_irqrestore(&phba->hbalock, iflag);
3444 phba->lpfc_rampdown_queue_depth(phba);
3445 spin_lock_irqsave(&phba->hbalock, iflag);
3448 /* Rsp ring <ringno> error: IOCB */
3449 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3450 "0336 Rsp Ring %d error: IOCB Data: "
3451 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
3453 irsp->un.ulpWord[0],
3454 irsp->un.ulpWord[1],
3455 irsp->un.ulpWord[2],
3456 irsp->un.ulpWord[3],
3457 irsp->un.ulpWord[4],
3458 irsp->un.ulpWord[5],
3459 *(uint32_t *)&irsp->un1,
3460 *((uint32_t *)&irsp->un1 + 1));
3464 case LPFC_ABORT_IOCB:
3467 * Idle exchange closed via ABTS from port. No iocb
3468 * resources need to be recovered.
3470 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
3471 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3472 "0333 IOCB cmd 0x%x"
3473 " processed. Skipping"
3479 spin_unlock_irqrestore(&phba->hbalock, iflag);
3480 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
3482 spin_lock_irqsave(&phba->hbalock, iflag);
3483 if (unlikely(!cmdiocbq))
3485 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED)
3486 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
3487 if (cmdiocbq->iocb_cmpl) {
3488 spin_unlock_irqrestore(&phba->hbalock, iflag);
3489 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
3491 spin_lock_irqsave(&phba->hbalock, iflag);
3494 case LPFC_UNSOL_IOCB:
3495 spin_unlock_irqrestore(&phba->hbalock, iflag);
3496 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
3497 spin_lock_irqsave(&phba->hbalock, iflag);
3500 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3501 char adaptermsg[LPFC_MAX_ADPTMSG];
3502 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3503 memcpy(&adaptermsg[0], (uint8_t *) irsp,
3505 dev_warn(&((phba->pcidev)->dev),
3507 phba->brd_no, adaptermsg);
3509 /* Unknown IOCB command */
3510 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3511 "0334 Unknown IOCB command "
3512 "Data: x%x, x%x x%x x%x x%x\n",
3513 type, irsp->ulpCommand,
3522 * The response IOCB has been processed. Update the ring
3523 * pointer in SLIM. If the port response put pointer has not
3524 * been updated, sync the pgp->rspPutInx and fetch the new port
3525 * response put pointer.
3527 writel(pring->sli.sli3.rspidx,
3528 &phba->host_gp[pring->ringno].rspGetInx);
3530 if (pring->sli.sli3.rspidx == portRspPut)
3531 portRspPut = le32_to_cpu(pgp->rspPutInx);
3534 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
3535 pring->stats.iocb_rsp_full++;
3536 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3537 writel(status, phba->CAregaddr);
3538 readl(phba->CAregaddr);
3540 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3541 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3542 pring->stats.iocb_cmd_empty++;
3544 /* Force update of the local copy of cmdGetInx */
3545 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3546 lpfc_sli_resume_iocb(phba, pring);
3548 if ((pring->lpfc_sli_cmd_available))
3549 (pring->lpfc_sli_cmd_available) (phba, pring);
3553 phba->fcp_ring_in_use = 0;
3554 spin_unlock_irqrestore(&phba->hbalock, iflag);
3559 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
3560 * @phba: Pointer to HBA context object.
3561 * @pring: Pointer to driver SLI ring object.
3562 * @rspiocbp: Pointer to driver response IOCB object.
3564 * This function is called from the worker thread when there is a slow-path
3565 * response IOCB to process. This function chains all the response iocbs until
3566 * seeing the iocb with the LE bit set. The function will call
3567 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
3568 * completion of a command iocb. The function will call the
3569 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
3570 * The function frees the resources or calls the completion handler if this
3571 * iocb is an abort completion. The function returns NULL when the response
3572 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
3573 * this function shall chain the iocb on to the iocb_continueq and return the
3574 * response iocb passed in.
3576 static struct lpfc_iocbq *
3577 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3578 struct lpfc_iocbq *rspiocbp)
3580 struct lpfc_iocbq *saveq;
3581 struct lpfc_iocbq *cmdiocbp;
3582 struct lpfc_iocbq *next_iocb;
3583 IOCB_t *irsp = NULL;
3584 uint32_t free_saveq;
3585 uint8_t iocb_cmd_type;
3586 lpfc_iocb_type type;
3587 unsigned long iflag;
3590 spin_lock_irqsave(&phba->hbalock, iflag);
3591 /* First add the response iocb to the countinueq list */
3592 list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
3593 pring->iocb_continueq_cnt++;
3595 /* Now, determine whether the list is completed for processing */
3596 irsp = &rspiocbp->iocb;
3599 * By default, the driver expects to free all resources
3600 * associated with this iocb completion.
3603 saveq = list_get_first(&pring->iocb_continueq,
3604 struct lpfc_iocbq, list);
3605 irsp = &(saveq->iocb);
3606 list_del_init(&pring->iocb_continueq);
3607 pring->iocb_continueq_cnt = 0;
3609 pring->stats.iocb_rsp++;
3612 * If resource errors reported from HBA, reduce
3613 * queuedepths of the SCSI device.
3615 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3616 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3617 IOERR_NO_RESOURCES)) {
3618 spin_unlock_irqrestore(&phba->hbalock, iflag);
3619 phba->lpfc_rampdown_queue_depth(phba);
3620 spin_lock_irqsave(&phba->hbalock, iflag);
3623 if (irsp->ulpStatus) {
3624 /* Rsp ring <ringno> error: IOCB */
3625 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3626 "0328 Rsp Ring %d error: "
3631 "x%x x%x x%x x%x\n",
3633 irsp->un.ulpWord[0],
3634 irsp->un.ulpWord[1],
3635 irsp->un.ulpWord[2],
3636 irsp->un.ulpWord[3],
3637 irsp->un.ulpWord[4],
3638 irsp->un.ulpWord[5],
3639 *(((uint32_t *) irsp) + 6),
3640 *(((uint32_t *) irsp) + 7),
3641 *(((uint32_t *) irsp) + 8),
3642 *(((uint32_t *) irsp) + 9),
3643 *(((uint32_t *) irsp) + 10),
3644 *(((uint32_t *) irsp) + 11),
3645 *(((uint32_t *) irsp) + 12),
3646 *(((uint32_t *) irsp) + 13),
3647 *(((uint32_t *) irsp) + 14),
3648 *(((uint32_t *) irsp) + 15));
3652 * Fetch the IOCB command type and call the correct completion
3653 * routine. Solicited and Unsolicited IOCBs on the ELS ring
3654 * get freed back to the lpfc_iocb_list by the discovery
3657 iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
3658 type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
3661 spin_unlock_irqrestore(&phba->hbalock, iflag);
3662 rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
3663 spin_lock_irqsave(&phba->hbalock, iflag);
3666 case LPFC_UNSOL_IOCB:
3667 spin_unlock_irqrestore(&phba->hbalock, iflag);
3668 rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
3669 spin_lock_irqsave(&phba->hbalock, iflag);
3674 case LPFC_ABORT_IOCB:
3676 if (irsp->ulpCommand != CMD_XRI_ABORTED_CX) {
3677 spin_unlock_irqrestore(&phba->hbalock, iflag);
3678 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
3680 spin_lock_irqsave(&phba->hbalock, iflag);
3683 /* Call the specified completion routine */
3684 if (cmdiocbp->iocb_cmpl) {
3685 spin_unlock_irqrestore(&phba->hbalock,
3687 (cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
3689 spin_lock_irqsave(&phba->hbalock,
3692 __lpfc_sli_release_iocbq(phba,
3697 case LPFC_UNKNOWN_IOCB:
3698 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3699 char adaptermsg[LPFC_MAX_ADPTMSG];
3700 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3701 memcpy(&adaptermsg[0], (uint8_t *)irsp,
3703 dev_warn(&((phba->pcidev)->dev),
3705 phba->brd_no, adaptermsg);
3707 /* Unknown IOCB command */
3708 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3709 "0335 Unknown IOCB "
3710 "command Data: x%x "
3721 list_for_each_entry_safe(rspiocbp, next_iocb,
3722 &saveq->list, list) {
3723 list_del_init(&rspiocbp->list);
3724 __lpfc_sli_release_iocbq(phba, rspiocbp);
3726 __lpfc_sli_release_iocbq(phba, saveq);
3730 spin_unlock_irqrestore(&phba->hbalock, iflag);
3735 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
3736 * @phba: Pointer to HBA context object.
3737 * @pring: Pointer to driver SLI ring object.
3738 * @mask: Host attention register mask for this ring.
3740 * This routine wraps the actual slow_ring event process routine from the
3741 * API jump table function pointer from the lpfc_hba struct.
3744 lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
3745 struct lpfc_sli_ring *pring, uint32_t mask)
3747 phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
3751 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
3752 * @phba: Pointer to HBA context object.
3753 * @pring: Pointer to driver SLI ring object.
3754 * @mask: Host attention register mask for this ring.
3756 * This function is called from the worker thread when there is a ring event
3757 * for non-fcp rings. The caller does not hold any lock. The function will
3758 * remove each response iocb in the response ring and calls the handle
3759 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3762 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
3763 struct lpfc_sli_ring *pring, uint32_t mask)
3765 struct lpfc_pgp *pgp;
3767 IOCB_t *irsp = NULL;
3768 struct lpfc_iocbq *rspiocbp = NULL;
3769 uint32_t portRspPut, portRspMax;
3770 unsigned long iflag;
3773 pgp = &phba->port_gp[pring->ringno];
3774 spin_lock_irqsave(&phba->hbalock, iflag);
3775 pring->stats.iocb_event++;
3778 * The next available response entry should never exceed the maximum
3779 * entries. If it does, treat it as an adapter hardware error.
3781 portRspMax = pring->sli.sli3.numRiocb;
3782 portRspPut = le32_to_cpu(pgp->rspPutInx);
3783 if (portRspPut >= portRspMax) {
3785 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
3786 * rsp ring <portRspMax>
3788 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3789 "0303 Ring %d handler: portRspPut %d "
3790 "is bigger than rsp ring %d\n",
3791 pring->ringno, portRspPut, portRspMax);
3793 phba->link_state = LPFC_HBA_ERROR;
3794 spin_unlock_irqrestore(&phba->hbalock, iflag);
3796 phba->work_hs = HS_FFER3;
3797 lpfc_handle_eratt(phba);
3803 while (pring->sli.sli3.rspidx != portRspPut) {
3805 * Build a completion list and call the appropriate handler.
3806 * The process is to get the next available response iocb, get
3807 * a free iocb from the list, copy the response data into the
3808 * free iocb, insert to the continuation list, and update the
3809 * next response index to slim. This process makes response
3810 * iocb's in the ring available to DMA as fast as possible but
3811 * pays a penalty for a copy operation. Since the iocb is
3812 * only 32 bytes, this penalty is considered small relative to
3813 * the PCI reads for register values and a slim write. When
3814 * the ulpLe field is set, the entire Command has been
3817 entry = lpfc_resp_iocb(phba, pring);
3819 phba->last_completion_time = jiffies;
3820 rspiocbp = __lpfc_sli_get_iocbq(phba);
3821 if (rspiocbp == NULL) {
3822 printk(KERN_ERR "%s: out of buffers! Failing "
3823 "completion.\n", __func__);
3827 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
3828 phba->iocb_rsp_size);
3829 irsp = &rspiocbp->iocb;
3831 if (++pring->sli.sli3.rspidx >= portRspMax)
3832 pring->sli.sli3.rspidx = 0;
3834 if (pring->ringno == LPFC_ELS_RING) {
3835 lpfc_debugfs_slow_ring_trc(phba,
3836 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
3837 *(((uint32_t *) irsp) + 4),
3838 *(((uint32_t *) irsp) + 6),
3839 *(((uint32_t *) irsp) + 7));
3842 writel(pring->sli.sli3.rspidx,
3843 &phba->host_gp[pring->ringno].rspGetInx);
3845 spin_unlock_irqrestore(&phba->hbalock, iflag);
3846 /* Handle the response IOCB */
3847 rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
3848 spin_lock_irqsave(&phba->hbalock, iflag);
3851 * If the port response put pointer has not been updated, sync
3852 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
3853 * response put pointer.
3855 if (pring->sli.sli3.rspidx == portRspPut) {
3856 portRspPut = le32_to_cpu(pgp->rspPutInx);
3858 } /* while (pring->sli.sli3.rspidx != portRspPut) */
3860 if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
3861 /* At least one response entry has been freed */
3862 pring->stats.iocb_rsp_full++;
3863 /* SET RxRE_RSP in Chip Att register */
3864 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3865 writel(status, phba->CAregaddr);
3866 readl(phba->CAregaddr); /* flush */
3868 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3869 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3870 pring->stats.iocb_cmd_empty++;
3872 /* Force update of the local copy of cmdGetInx */
3873 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3874 lpfc_sli_resume_iocb(phba, pring);
3876 if ((pring->lpfc_sli_cmd_available))
3877 (pring->lpfc_sli_cmd_available) (phba, pring);
3881 spin_unlock_irqrestore(&phba->hbalock, iflag);
3886 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
3887 * @phba: Pointer to HBA context object.
3888 * @pring: Pointer to driver SLI ring object.
3889 * @mask: Host attention register mask for this ring.
3891 * This function is called from the worker thread when there is a pending
3892 * ELS response iocb on the driver internal slow-path response iocb worker
3893 * queue. The caller does not hold any lock. The function will remove each
3894 * response iocb from the response worker queue and calls the handle
3895 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3898 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
3899 struct lpfc_sli_ring *pring, uint32_t mask)
3901 struct lpfc_iocbq *irspiocbq;
3902 struct hbq_dmabuf *dmabuf;
3903 struct lpfc_cq_event *cq_event;
3904 unsigned long iflag;
3907 spin_lock_irqsave(&phba->hbalock, iflag);
3908 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
3909 spin_unlock_irqrestore(&phba->hbalock, iflag);
3910 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
3911 /* Get the response iocb from the head of work queue */
3912 spin_lock_irqsave(&phba->hbalock, iflag);
3913 list_remove_head(&phba->sli4_hba.sp_queue_event,
3914 cq_event, struct lpfc_cq_event, list);
3915 spin_unlock_irqrestore(&phba->hbalock, iflag);
3917 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
3918 case CQE_CODE_COMPL_WQE:
3919 irspiocbq = container_of(cq_event, struct lpfc_iocbq,
3921 /* Translate ELS WCQE to response IOCBQ */
3922 irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba,
3925 lpfc_sli_sp_handle_rspiocb(phba, pring,
3929 case CQE_CODE_RECEIVE:
3930 case CQE_CODE_RECEIVE_V1:
3931 dmabuf = container_of(cq_event, struct hbq_dmabuf,
3933 lpfc_sli4_handle_received_buffer(phba, dmabuf);
3940 /* Limit the number of events to 64 to avoid soft lockups */
3947 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
3948 * @phba: Pointer to HBA context object.
3949 * @pring: Pointer to driver SLI ring object.
3951 * This function aborts all iocbs in the given ring and frees all the iocb
3952 * objects in txq. This function issues an abort iocb for all the iocb commands
3953 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3954 * the return of this function. The caller is not required to hold any locks.
3957 lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3959 LIST_HEAD(completions);
3960 struct lpfc_iocbq *iocb, *next_iocb;
3962 if (pring->ringno == LPFC_ELS_RING) {
3963 lpfc_fabric_abort_hba(phba);
3966 /* Error everything on txq and txcmplq
3969 if (phba->sli_rev >= LPFC_SLI_REV4) {
3970 spin_lock_irq(&pring->ring_lock);
3971 list_splice_init(&pring->txq, &completions);
3973 spin_unlock_irq(&pring->ring_lock);
3975 spin_lock_irq(&phba->hbalock);
3976 /* Next issue ABTS for everything on the txcmplq */
3977 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3978 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3979 spin_unlock_irq(&phba->hbalock);
3981 spin_lock_irq(&phba->hbalock);
3982 list_splice_init(&pring->txq, &completions);
3985 /* Next issue ABTS for everything on the txcmplq */
3986 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3987 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3988 spin_unlock_irq(&phba->hbalock);
3991 /* Cancel all the IOCBs from the completions list */
3992 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3997 * lpfc_sli_abort_fcp_rings - Abort all iocbs in all FCP rings
3998 * @phba: Pointer to HBA context object.
3999 * @pring: Pointer to driver SLI ring object.
4001 * This function aborts all iocbs in FCP rings and frees all the iocb
4002 * objects in txq. This function issues an abort iocb for all the iocb commands
4003 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
4004 * the return of this function. The caller is not required to hold any locks.
4007 lpfc_sli_abort_fcp_rings(struct lpfc_hba *phba)
4009 struct lpfc_sli *psli = &phba->sli;
4010 struct lpfc_sli_ring *pring;
4013 /* Look on all the FCP Rings for the iotag */
4014 if (phba->sli_rev >= LPFC_SLI_REV4) {
4015 for (i = 0; i < phba->cfg_hdw_queue; i++) {
4016 pring = phba->sli4_hba.hdwq[i].io_wq->pring;
4017 lpfc_sli_abort_iocb_ring(phba, pring);
4020 pring = &psli->sli3_ring[LPFC_FCP_RING];
4021 lpfc_sli_abort_iocb_ring(phba, pring);
4026 * lpfc_sli_flush_io_rings - flush all iocbs in the IO ring
4027 * @phba: Pointer to HBA context object.
4029 * This function flushes all iocbs in the IO ring and frees all the iocb
4030 * objects in txq and txcmplq. This function will not issue abort iocbs
4031 * for all the iocb commands in txcmplq, they will just be returned with
4032 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
4033 * slot has been permanently disabled.
4036 lpfc_sli_flush_io_rings(struct lpfc_hba *phba)
4040 struct lpfc_sli *psli = &phba->sli;
4041 struct lpfc_sli_ring *pring;
4043 struct lpfc_iocbq *piocb, *next_iocb;
4045 spin_lock_irq(&phba->hbalock);
4046 /* Indicate the I/O queues are flushed */
4047 phba->hba_flag |= HBA_IOQ_FLUSH;
4048 spin_unlock_irq(&phba->hbalock);
4050 /* Look on all the FCP Rings for the iotag */
4051 if (phba->sli_rev >= LPFC_SLI_REV4) {
4052 for (i = 0; i < phba->cfg_hdw_queue; i++) {
4053 pring = phba->sli4_hba.hdwq[i].io_wq->pring;
4055 spin_lock_irq(&pring->ring_lock);
4056 /* Retrieve everything on txq */
4057 list_splice_init(&pring->txq, &txq);
4058 list_for_each_entry_safe(piocb, next_iocb,
4059 &pring->txcmplq, list)
4060 piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
4061 /* Retrieve everything on the txcmplq */
4062 list_splice_init(&pring->txcmplq, &txcmplq);
4064 pring->txcmplq_cnt = 0;
4065 spin_unlock_irq(&pring->ring_lock);
4068 lpfc_sli_cancel_iocbs(phba, &txq,
4069 IOSTAT_LOCAL_REJECT,
4071 /* Flush the txcmpq */
4072 lpfc_sli_cancel_iocbs(phba, &txcmplq,
4073 IOSTAT_LOCAL_REJECT,
4077 pring = &psli->sli3_ring[LPFC_FCP_RING];
4079 spin_lock_irq(&phba->hbalock);
4080 /* Retrieve everything on txq */
4081 list_splice_init(&pring->txq, &txq);
4082 list_for_each_entry_safe(piocb, next_iocb,
4083 &pring->txcmplq, list)
4084 piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
4085 /* Retrieve everything on the txcmplq */
4086 list_splice_init(&pring->txcmplq, &txcmplq);
4088 pring->txcmplq_cnt = 0;
4089 spin_unlock_irq(&phba->hbalock);
4092 lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
4094 /* Flush the txcmpq */
4095 lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
4101 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
4102 * @phba: Pointer to HBA context object.
4103 * @mask: Bit mask to be checked.
4105 * This function reads the host status register and compares
4106 * with the provided bit mask to check if HBA completed
4107 * the restart. This function will wait in a loop for the
4108 * HBA to complete restart. If the HBA does not restart within
4109 * 15 iterations, the function will reset the HBA again. The
4110 * function returns 1 when HBA fail to restart otherwise returns
4114 lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
4120 /* Read the HBA Host Status Register */
4121 if (lpfc_readl(phba->HSregaddr, &status))
4125 * Check status register every 100ms for 5 retries, then every
4126 * 500ms for 5, then every 2.5 sec for 5, then reset board and
4127 * every 2.5 sec for 4.
4128 * Break our of the loop if errors occurred during init.
4130 while (((status & mask) != mask) &&
4131 !(status & HS_FFERM) &&
4143 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4144 lpfc_sli_brdrestart(phba);
4146 /* Read the HBA Host Status Register */
4147 if (lpfc_readl(phba->HSregaddr, &status)) {
4153 /* Check to see if any errors occurred during init */
4154 if ((status & HS_FFERM) || (i >= 20)) {
4155 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4156 "2751 Adapter failed to restart, "
4157 "status reg x%x, FW Data: A8 x%x AC x%x\n",
4159 readl(phba->MBslimaddr + 0xa8),
4160 readl(phba->MBslimaddr + 0xac));
4161 phba->link_state = LPFC_HBA_ERROR;
4169 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
4170 * @phba: Pointer to HBA context object.
4171 * @mask: Bit mask to be checked.
4173 * This function checks the host status register to check if HBA is
4174 * ready. This function will wait in a loop for the HBA to be ready
4175 * If the HBA is not ready , the function will will reset the HBA PCI
4176 * function again. The function returns 1 when HBA fail to be ready
4177 * otherwise returns zero.
4180 lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
4185 /* Read the HBA Host Status Register */
4186 status = lpfc_sli4_post_status_check(phba);
4189 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4190 lpfc_sli_brdrestart(phba);
4191 status = lpfc_sli4_post_status_check(phba);
4194 /* Check to see if any errors occurred during init */
4196 phba->link_state = LPFC_HBA_ERROR;
4199 phba->sli4_hba.intr_enable = 0;
4205 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
4206 * @phba: Pointer to HBA context object.
4207 * @mask: Bit mask to be checked.
4209 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
4210 * from the API jump table function pointer from the lpfc_hba struct.
4213 lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
4215 return phba->lpfc_sli_brdready(phba, mask);
4218 #define BARRIER_TEST_PATTERN (0xdeadbeef)
4221 * lpfc_reset_barrier - Make HBA ready for HBA reset
4222 * @phba: Pointer to HBA context object.
4224 * This function is called before resetting an HBA. This function is called
4225 * with hbalock held and requests HBA to quiesce DMAs before a reset.
4227 void lpfc_reset_barrier(struct lpfc_hba *phba)
4229 uint32_t __iomem *resp_buf;
4230 uint32_t __iomem *mbox_buf;
4231 volatile uint32_t mbox;
4232 uint32_t hc_copy, ha_copy, resp_data;
4236 lockdep_assert_held(&phba->hbalock);
4238 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
4239 if (hdrtype != 0x80 ||
4240 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
4241 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
4245 * Tell the other part of the chip to suspend temporarily all
4248 resp_buf = phba->MBslimaddr;
4250 /* Disable the error attention */
4251 if (lpfc_readl(phba->HCregaddr, &hc_copy))
4253 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
4254 readl(phba->HCregaddr); /* flush */
4255 phba->link_flag |= LS_IGNORE_ERATT;
4257 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4259 if (ha_copy & HA_ERATT) {
4260 /* Clear Chip error bit */
4261 writel(HA_ERATT, phba->HAregaddr);
4262 phba->pport->stopped = 1;
4266 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
4267 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
4269 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
4270 mbox_buf = phba->MBslimaddr;
4271 writel(mbox, mbox_buf);
4273 for (i = 0; i < 50; i++) {
4274 if (lpfc_readl((resp_buf + 1), &resp_data))
4276 if (resp_data != ~(BARRIER_TEST_PATTERN))
4282 if (lpfc_readl((resp_buf + 1), &resp_data))
4284 if (resp_data != ~(BARRIER_TEST_PATTERN)) {
4285 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
4286 phba->pport->stopped)
4292 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
4294 for (i = 0; i < 500; i++) {
4295 if (lpfc_readl(resp_buf, &resp_data))
4297 if (resp_data != mbox)
4306 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4308 if (!(ha_copy & HA_ERATT))
4314 if (readl(phba->HAregaddr) & HA_ERATT) {
4315 writel(HA_ERATT, phba->HAregaddr);
4316 phba->pport->stopped = 1;
4320 phba->link_flag &= ~LS_IGNORE_ERATT;
4321 writel(hc_copy, phba->HCregaddr);
4322 readl(phba->HCregaddr); /* flush */
4326 * lpfc_sli_brdkill - Issue a kill_board mailbox command
4327 * @phba: Pointer to HBA context object.
4329 * This function issues a kill_board mailbox command and waits for
4330 * the error attention interrupt. This function is called for stopping
4331 * the firmware processing. The caller is not required to hold any
4332 * locks. This function calls lpfc_hba_down_post function to free
4333 * any pending commands after the kill. The function will return 1 when it
4334 * fails to kill the board else will return 0.
4337 lpfc_sli_brdkill(struct lpfc_hba *phba)
4339 struct lpfc_sli *psli;
4349 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4350 "0329 Kill HBA Data: x%x x%x\n",
4351 phba->pport->port_state, psli->sli_flag);
4353 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4357 /* Disable the error attention */
4358 spin_lock_irq(&phba->hbalock);
4359 if (lpfc_readl(phba->HCregaddr, &status)) {
4360 spin_unlock_irq(&phba->hbalock);
4361 mempool_free(pmb, phba->mbox_mem_pool);
4364 status &= ~HC_ERINT_ENA;
4365 writel(status, phba->HCregaddr);
4366 readl(phba->HCregaddr); /* flush */
4367 phba->link_flag |= LS_IGNORE_ERATT;
4368 spin_unlock_irq(&phba->hbalock);
4370 lpfc_kill_board(phba, pmb);
4371 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4372 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4374 if (retval != MBX_SUCCESS) {
4375 if (retval != MBX_BUSY)
4376 mempool_free(pmb, phba->mbox_mem_pool);
4377 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4378 "2752 KILL_BOARD command failed retval %d\n",
4380 spin_lock_irq(&phba->hbalock);
4381 phba->link_flag &= ~LS_IGNORE_ERATT;
4382 spin_unlock_irq(&phba->hbalock);
4386 spin_lock_irq(&phba->hbalock);
4387 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
4388 spin_unlock_irq(&phba->hbalock);
4390 mempool_free(pmb, phba->mbox_mem_pool);
4392 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
4393 * attention every 100ms for 3 seconds. If we don't get ERATT after
4394 * 3 seconds we still set HBA_ERROR state because the status of the
4395 * board is now undefined.
4397 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4399 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
4401 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4405 del_timer_sync(&psli->mbox_tmo);
4406 if (ha_copy & HA_ERATT) {
4407 writel(HA_ERATT, phba->HAregaddr);
4408 phba->pport->stopped = 1;
4410 spin_lock_irq(&phba->hbalock);
4411 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4412 psli->mbox_active = NULL;
4413 phba->link_flag &= ~LS_IGNORE_ERATT;
4414 spin_unlock_irq(&phba->hbalock);
4416 lpfc_hba_down_post(phba);
4417 phba->link_state = LPFC_HBA_ERROR;
4419 return ha_copy & HA_ERATT ? 0 : 1;
4423 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
4424 * @phba: Pointer to HBA context object.
4426 * This function resets the HBA by writing HC_INITFF to the control
4427 * register. After the HBA resets, this function resets all the iocb ring
4428 * indices. This function disables PCI layer parity checking during
4430 * This function returns 0 always.
4431 * The caller is not required to hold any locks.
4434 lpfc_sli_brdreset(struct lpfc_hba *phba)
4436 struct lpfc_sli *psli;
4437 struct lpfc_sli_ring *pring;
4444 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4445 "0325 Reset HBA Data: x%x x%x\n",
4446 (phba->pport) ? phba->pport->port_state : 0,
4449 /* perform board reset */
4450 phba->fc_eventTag = 0;
4451 phba->link_events = 0;
4453 phba->pport->fc_myDID = 0;
4454 phba->pport->fc_prevDID = 0;
4457 /* Turn off parity checking and serr during the physical reset */
4458 if (pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value))
4461 pci_write_config_word(phba->pcidev, PCI_COMMAND,
4463 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4465 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
4467 /* Now toggle INITFF bit in the Host Control Register */
4468 writel(HC_INITFF, phba->HCregaddr);
4470 readl(phba->HCregaddr); /* flush */
4471 writel(0, phba->HCregaddr);
4472 readl(phba->HCregaddr); /* flush */
4474 /* Restore PCI cmd register */
4475 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
4477 /* Initialize relevant SLI info */
4478 for (i = 0; i < psli->num_rings; i++) {
4479 pring = &psli->sli3_ring[i];
4481 pring->sli.sli3.rspidx = 0;
4482 pring->sli.sli3.next_cmdidx = 0;
4483 pring->sli.sli3.local_getidx = 0;
4484 pring->sli.sli3.cmdidx = 0;
4485 pring->missbufcnt = 0;
4488 phba->link_state = LPFC_WARM_START;
4493 * lpfc_sli4_brdreset - Reset a sli-4 HBA
4494 * @phba: Pointer to HBA context object.
4496 * This function resets a SLI4 HBA. This function disables PCI layer parity
4497 * checking during resets the device. The caller is not required to hold
4500 * This function returns 0 on success else returns negative error code.
4503 lpfc_sli4_brdreset(struct lpfc_hba *phba)
4505 struct lpfc_sli *psli = &phba->sli;
4510 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4511 "0295 Reset HBA Data: x%x x%x x%x\n",
4512 phba->pport->port_state, psli->sli_flag,
4515 /* perform board reset */
4516 phba->fc_eventTag = 0;
4517 phba->link_events = 0;
4518 phba->pport->fc_myDID = 0;
4519 phba->pport->fc_prevDID = 0;
4521 spin_lock_irq(&phba->hbalock);
4522 psli->sli_flag &= ~(LPFC_PROCESS_LA);
4523 phba->fcf.fcf_flag = 0;
4524 spin_unlock_irq(&phba->hbalock);
4526 /* SLI4 INTF 2: if FW dump is being taken skip INIT_PORT */
4527 if (phba->hba_flag & HBA_FW_DUMP_OP) {
4528 phba->hba_flag &= ~HBA_FW_DUMP_OP;
4532 /* Now physically reset the device */
4533 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4534 "0389 Performing PCI function reset!\n");
4536 /* Turn off parity checking and serr during the physical reset */
4537 if (pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value)) {
4538 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4539 "3205 PCI read Config failed\n");
4543 pci_write_config_word(phba->pcidev, PCI_COMMAND, (cfg_value &
4544 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4546 /* Perform FCoE PCI function reset before freeing queue memory */
4547 rc = lpfc_pci_function_reset(phba);
4549 /* Restore PCI cmd register */
4550 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
4556 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
4557 * @phba: Pointer to HBA context object.
4559 * This function is called in the SLI initialization code path to
4560 * restart the HBA. The caller is not required to hold any lock.
4561 * This function writes MBX_RESTART mailbox command to the SLIM and
4562 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
4563 * function to free any pending commands. The function enables
4564 * POST only during the first initialization. The function returns zero.
4565 * The function does not guarantee completion of MBX_RESTART mailbox
4566 * command before the return of this function.
4569 lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
4572 struct lpfc_sli *psli;
4573 volatile uint32_t word0;
4574 void __iomem *to_slim;
4575 uint32_t hba_aer_enabled;
4577 spin_lock_irq(&phba->hbalock);
4579 /* Take PCIe device Advanced Error Reporting (AER) state */
4580 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4585 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4586 "0337 Restart HBA Data: x%x x%x\n",
4587 (phba->pport) ? phba->pport->port_state : 0,
4591 mb = (MAILBOX_t *) &word0;
4592 mb->mbxCommand = MBX_RESTART;
4595 lpfc_reset_barrier(phba);
4597 to_slim = phba->MBslimaddr;
4598 writel(*(uint32_t *) mb, to_slim);
4599 readl(to_slim); /* flush */
4601 /* Only skip post after fc_ffinit is completed */
4602 if (phba->pport && phba->pport->port_state)
4603 word0 = 1; /* This is really setting up word1 */
4605 word0 = 0; /* This is really setting up word1 */
4606 to_slim = phba->MBslimaddr + sizeof (uint32_t);
4607 writel(*(uint32_t *) mb, to_slim);
4608 readl(to_slim); /* flush */
4610 lpfc_sli_brdreset(phba);
4612 phba->pport->stopped = 0;
4613 phba->link_state = LPFC_INIT_START;
4615 spin_unlock_irq(&phba->hbalock);
4617 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4618 psli->stats_start = ktime_get_seconds();
4620 /* Give the INITFF and Post time to settle. */
4623 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4624 if (hba_aer_enabled)
4625 pci_disable_pcie_error_reporting(phba->pcidev);
4627 lpfc_hba_down_post(phba);
4633 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
4634 * @phba: Pointer to HBA context object.
4636 * This function is called in the SLI initialization code path to restart
4637 * a SLI4 HBA. The caller is not required to hold any lock.
4638 * At the end of the function, it calls lpfc_hba_down_post function to
4639 * free any pending commands.
4642 lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
4644 struct lpfc_sli *psli = &phba->sli;
4645 uint32_t hba_aer_enabled;
4649 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4650 "0296 Restart HBA Data: x%x x%x\n",
4651 phba->pport->port_state, psli->sli_flag);
4653 /* Take PCIe device Advanced Error Reporting (AER) state */
4654 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4656 rc = lpfc_sli4_brdreset(phba);
4658 phba->link_state = LPFC_HBA_ERROR;
4659 goto hba_down_queue;
4662 spin_lock_irq(&phba->hbalock);
4663 phba->pport->stopped = 0;
4664 phba->link_state = LPFC_INIT_START;
4666 spin_unlock_irq(&phba->hbalock);
4668 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4669 psli->stats_start = ktime_get_seconds();
4671 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4672 if (hba_aer_enabled)
4673 pci_disable_pcie_error_reporting(phba->pcidev);
4676 lpfc_hba_down_post(phba);
4677 lpfc_sli4_queue_destroy(phba);
4683 * lpfc_sli_brdrestart - Wrapper func for restarting hba
4684 * @phba: Pointer to HBA context object.
4686 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
4687 * API jump table function pointer from the lpfc_hba struct.
4690 lpfc_sli_brdrestart(struct lpfc_hba *phba)
4692 return phba->lpfc_sli_brdrestart(phba);
4696 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
4697 * @phba: Pointer to HBA context object.
4699 * This function is called after a HBA restart to wait for successful
4700 * restart of the HBA. Successful restart of the HBA is indicated by
4701 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
4702 * iteration, the function will restart the HBA again. The function returns
4703 * zero if HBA successfully restarted else returns negative error code.
4706 lpfc_sli_chipset_init(struct lpfc_hba *phba)
4708 uint32_t status, i = 0;
4710 /* Read the HBA Host Status Register */
4711 if (lpfc_readl(phba->HSregaddr, &status))
4714 /* Check status register to see what current state is */
4716 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
4718 /* Check every 10ms for 10 retries, then every 100ms for 90
4719 * retries, then every 1 sec for 50 retires for a total of
4720 * ~60 seconds before reset the board again and check every
4721 * 1 sec for 50 retries. The up to 60 seconds before the
4722 * board ready is required by the Falcon FIPS zeroization
4723 * complete, and any reset the board in between shall cause
4724 * restart of zeroization, further delay the board ready.
4727 /* Adapter failed to init, timeout, status reg
4729 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4730 "0436 Adapter failed to init, "
4731 "timeout, status reg x%x, "
4732 "FW Data: A8 x%x AC x%x\n", status,
4733 readl(phba->MBslimaddr + 0xa8),
4734 readl(phba->MBslimaddr + 0xac));
4735 phba->link_state = LPFC_HBA_ERROR;
4739 /* Check to see if any errors occurred during init */
4740 if (status & HS_FFERM) {
4741 /* ERROR: During chipset initialization */
4742 /* Adapter failed to init, chipset, status reg
4744 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4745 "0437 Adapter failed to init, "
4746 "chipset, status reg x%x, "
4747 "FW Data: A8 x%x AC x%x\n", status,
4748 readl(phba->MBslimaddr + 0xa8),
4749 readl(phba->MBslimaddr + 0xac));
4750 phba->link_state = LPFC_HBA_ERROR;
4763 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4764 lpfc_sli_brdrestart(phba);
4766 /* Read the HBA Host Status Register */
4767 if (lpfc_readl(phba->HSregaddr, &status))
4771 /* Check to see if any errors occurred during init */
4772 if (status & HS_FFERM) {
4773 /* ERROR: During chipset initialization */
4774 /* Adapter failed to init, chipset, status reg <status> */
4775 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4776 "0438 Adapter failed to init, chipset, "
4778 "FW Data: A8 x%x AC x%x\n", status,
4779 readl(phba->MBslimaddr + 0xa8),
4780 readl(phba->MBslimaddr + 0xac));
4781 phba->link_state = LPFC_HBA_ERROR;
4785 /* Clear all interrupt enable conditions */
4786 writel(0, phba->HCregaddr);
4787 readl(phba->HCregaddr); /* flush */
4789 /* setup host attn register */
4790 writel(0xffffffff, phba->HAregaddr);
4791 readl(phba->HAregaddr); /* flush */
4796 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
4798 * This function calculates and returns the number of HBQs required to be
4802 lpfc_sli_hbq_count(void)
4804 return ARRAY_SIZE(lpfc_hbq_defs);
4808 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
4810 * This function adds the number of hbq entries in every HBQ to get
4811 * the total number of hbq entries required for the HBA and returns
4815 lpfc_sli_hbq_entry_count(void)
4817 int hbq_count = lpfc_sli_hbq_count();
4821 for (i = 0; i < hbq_count; ++i)
4822 count += lpfc_hbq_defs[i]->entry_count;
4827 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
4829 * This function calculates amount of memory required for all hbq entries
4830 * to be configured and returns the total memory required.
4833 lpfc_sli_hbq_size(void)
4835 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
4839 * lpfc_sli_hbq_setup - configure and initialize HBQs
4840 * @phba: Pointer to HBA context object.
4842 * This function is called during the SLI initialization to configure
4843 * all the HBQs and post buffers to the HBQ. The caller is not
4844 * required to hold any locks. This function will return zero if successful
4845 * else it will return negative error code.
4848 lpfc_sli_hbq_setup(struct lpfc_hba *phba)
4850 int hbq_count = lpfc_sli_hbq_count();
4854 uint32_t hbq_entry_index;
4856 /* Get a Mailbox buffer to setup mailbox
4857 * commands for HBA initialization
4859 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4866 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
4867 phba->link_state = LPFC_INIT_MBX_CMDS;
4868 phba->hbq_in_use = 1;
4870 hbq_entry_index = 0;
4871 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
4872 phba->hbqs[hbqno].next_hbqPutIdx = 0;
4873 phba->hbqs[hbqno].hbqPutIdx = 0;
4874 phba->hbqs[hbqno].local_hbqGetIdx = 0;
4875 phba->hbqs[hbqno].entry_count =
4876 lpfc_hbq_defs[hbqno]->entry_count;
4877 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
4878 hbq_entry_index, pmb);
4879 hbq_entry_index += phba->hbqs[hbqno].entry_count;
4881 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
4882 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
4883 mbxStatus <status>, ring <num> */
4885 lpfc_printf_log(phba, KERN_ERR,
4886 LOG_SLI | LOG_VPORT,
4887 "1805 Adapter failed to init. "
4888 "Data: x%x x%x x%x\n",
4890 pmbox->mbxStatus, hbqno);
4892 phba->link_state = LPFC_HBA_ERROR;
4893 mempool_free(pmb, phba->mbox_mem_pool);
4897 phba->hbq_count = hbq_count;
4899 mempool_free(pmb, phba->mbox_mem_pool);
4901 /* Initially populate or replenish the HBQs */
4902 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
4903 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
4908 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
4909 * @phba: Pointer to HBA context object.
4911 * This function is called during the SLI initialization to configure
4912 * all the HBQs and post buffers to the HBQ. The caller is not
4913 * required to hold any locks. This function will return zero if successful
4914 * else it will return negative error code.
4917 lpfc_sli4_rb_setup(struct lpfc_hba *phba)
4919 phba->hbq_in_use = 1;
4920 phba->hbqs[LPFC_ELS_HBQ].entry_count =
4921 lpfc_hbq_defs[LPFC_ELS_HBQ]->entry_count;
4922 phba->hbq_count = 1;
4923 lpfc_sli_hbqbuf_init_hbqs(phba, LPFC_ELS_HBQ);
4924 /* Initially populate or replenish the HBQs */
4929 * lpfc_sli_config_port - Issue config port mailbox command
4930 * @phba: Pointer to HBA context object.
4931 * @sli_mode: sli mode - 2/3
4933 * This function is called by the sli initialization code path
4934 * to issue config_port mailbox command. This function restarts the
4935 * HBA firmware and issues a config_port mailbox command to configure
4936 * the SLI interface in the sli mode specified by sli_mode
4937 * variable. The caller is not required to hold any locks.
4938 * The function returns 0 if successful, else returns negative error
4942 lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
4945 uint32_t resetcount = 0, rc = 0, done = 0;
4947 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4949 phba->link_state = LPFC_HBA_ERROR;
4953 phba->sli_rev = sli_mode;
4954 while (resetcount < 2 && !done) {
4955 spin_lock_irq(&phba->hbalock);
4956 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
4957 spin_unlock_irq(&phba->hbalock);
4958 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4959 lpfc_sli_brdrestart(phba);
4960 rc = lpfc_sli_chipset_init(phba);
4964 spin_lock_irq(&phba->hbalock);
4965 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4966 spin_unlock_irq(&phba->hbalock);
4969 /* Call pre CONFIG_PORT mailbox command initialization. A
4970 * value of 0 means the call was successful. Any other
4971 * nonzero value is a failure, but if ERESTART is returned,
4972 * the driver may reset the HBA and try again.
4974 rc = lpfc_config_port_prep(phba);
4975 if (rc == -ERESTART) {
4976 phba->link_state = LPFC_LINK_UNKNOWN;
4981 phba->link_state = LPFC_INIT_MBX_CMDS;
4982 lpfc_config_port(phba, pmb);
4983 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
4984 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
4985 LPFC_SLI3_HBQ_ENABLED |
4986 LPFC_SLI3_CRP_ENABLED |
4987 LPFC_SLI3_DSS_ENABLED);
4988 if (rc != MBX_SUCCESS) {
4989 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4990 "0442 Adapter failed to init, mbxCmd x%x "
4991 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
4992 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
4993 spin_lock_irq(&phba->hbalock);
4994 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
4995 spin_unlock_irq(&phba->hbalock);
4998 /* Allow asynchronous mailbox command to go through */
4999 spin_lock_irq(&phba->hbalock);
5000 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
5001 spin_unlock_irq(&phba->hbalock);
5004 if ((pmb->u.mb.un.varCfgPort.casabt == 1) &&
5005 (pmb->u.mb.un.varCfgPort.gasabt == 0))
5006 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5007 "3110 Port did not grant ASABT\n");
5012 goto do_prep_failed;
5014 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
5015 if (!pmb->u.mb.un.varCfgPort.cMA) {
5017 goto do_prep_failed;
5019 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
5020 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
5021 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
5022 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
5023 phba->max_vpi : phba->max_vports;
5027 phba->fips_level = 0;
5028 phba->fips_spec_rev = 0;
5029 if (pmb->u.mb.un.varCfgPort.gdss) {
5030 phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
5031 phba->fips_level = pmb->u.mb.un.varCfgPort.fips_level;
5032 phba->fips_spec_rev = pmb->u.mb.un.varCfgPort.fips_rev;
5033 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5034 "2850 Security Crypto Active. FIPS x%d "
5036 phba->fips_level, phba->fips_spec_rev);
5038 if (pmb->u.mb.un.varCfgPort.sec_err) {
5039 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5040 "2856 Config Port Security Crypto "
5042 pmb->u.mb.un.varCfgPort.sec_err);
5044 if (pmb->u.mb.un.varCfgPort.gerbm)
5045 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
5046 if (pmb->u.mb.un.varCfgPort.gcrp)
5047 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
5049 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
5050 phba->port_gp = phba->mbox->us.s3_pgp.port;
5052 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
5053 if (pmb->u.mb.un.varCfgPort.gbg == 0) {
5054 phba->cfg_enable_bg = 0;
5055 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
5056 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5057 "0443 Adapter did not grant "
5062 phba->hbq_get = NULL;
5063 phba->port_gp = phba->mbox->us.s2.port;
5067 mempool_free(pmb, phba->mbox_mem_pool);
5073 * lpfc_sli_hba_setup - SLI initialization function
5074 * @phba: Pointer to HBA context object.
5076 * This function is the main SLI initialization function. This function
5077 * is called by the HBA initialization code, HBA reset code and HBA
5078 * error attention handler code. Caller is not required to hold any
5079 * locks. This function issues config_port mailbox command to configure
5080 * the SLI, setup iocb rings and HBQ rings. In the end the function
5081 * calls the config_port_post function to issue init_link mailbox
5082 * command and to start the discovery. The function will return zero
5083 * if successful, else it will return negative error code.
5086 lpfc_sli_hba_setup(struct lpfc_hba *phba)
5092 switch (phba->cfg_sli_mode) {
5094 if (phba->cfg_enable_npiv) {
5095 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
5096 "1824 NPIV enabled: Override sli_mode "
5097 "parameter (%d) to auto (0).\n",
5098 phba->cfg_sli_mode);
5107 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
5108 "1819 Unrecognized sli_mode parameter: %d.\n",
5109 phba->cfg_sli_mode);
5113 phba->fcp_embed_io = 0; /* SLI4 FC support only */
5115 rc = lpfc_sli_config_port(phba, mode);
5117 if (rc && phba->cfg_sli_mode == 3)
5118 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
5119 "1820 Unable to select SLI-3. "
5120 "Not supported by adapter.\n");
5121 if (rc && mode != 2)
5122 rc = lpfc_sli_config_port(phba, 2);
5123 else if (rc && mode == 2)
5124 rc = lpfc_sli_config_port(phba, 3);
5126 goto lpfc_sli_hba_setup_error;
5128 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
5129 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
5130 rc = pci_enable_pcie_error_reporting(phba->pcidev);
5132 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5133 "2709 This device supports "
5134 "Advanced Error Reporting (AER)\n");
5135 spin_lock_irq(&phba->hbalock);
5136 phba->hba_flag |= HBA_AER_ENABLED;
5137 spin_unlock_irq(&phba->hbalock);
5139 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5140 "2708 This device does not support "
5141 "Advanced Error Reporting (AER): %d\n",
5143 phba->cfg_aer_support = 0;
5147 if (phba->sli_rev == 3) {
5148 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
5149 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
5151 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
5152 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
5153 phba->sli3_options = 0;
5156 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5157 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
5158 phba->sli_rev, phba->max_vpi);
5159 rc = lpfc_sli_ring_map(phba);
5162 goto lpfc_sli_hba_setup_error;
5164 /* Initialize VPIs. */
5165 if (phba->sli_rev == LPFC_SLI_REV3) {
5167 * The VPI bitmask and physical ID array are allocated
5168 * and initialized once only - at driver load. A port
5169 * reset doesn't need to reinitialize this memory.
5171 if ((phba->vpi_bmask == NULL) && (phba->vpi_ids == NULL)) {
5172 longs = (phba->max_vpi + BITS_PER_LONG) / BITS_PER_LONG;
5173 phba->vpi_bmask = kcalloc(longs,
5174 sizeof(unsigned long),
5176 if (!phba->vpi_bmask) {
5178 goto lpfc_sli_hba_setup_error;
5181 phba->vpi_ids = kcalloc(phba->max_vpi + 1,
5184 if (!phba->vpi_ids) {
5185 kfree(phba->vpi_bmask);
5187 goto lpfc_sli_hba_setup_error;
5189 for (i = 0; i < phba->max_vpi; i++)
5190 phba->vpi_ids[i] = i;
5195 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
5196 rc = lpfc_sli_hbq_setup(phba);
5198 goto lpfc_sli_hba_setup_error;
5200 spin_lock_irq(&phba->hbalock);
5201 phba->sli.sli_flag |= LPFC_PROCESS_LA;
5202 spin_unlock_irq(&phba->hbalock);
5204 rc = lpfc_config_port_post(phba);
5206 goto lpfc_sli_hba_setup_error;
5210 lpfc_sli_hba_setup_error:
5211 phba->link_state = LPFC_HBA_ERROR;
5212 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5213 "0445 Firmware initialization failed\n");
5218 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
5219 * @phba: Pointer to HBA context object.
5220 * @mboxq: mailbox pointer.
5221 * This function issue a dump mailbox command to read config region
5222 * 23 and parse the records in the region and populate driver
5226 lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba)
5228 LPFC_MBOXQ_t *mboxq;
5229 struct lpfc_dmabuf *mp;
5230 struct lpfc_mqe *mqe;
5231 uint32_t data_length;
5234 /* Program the default value of vlan_id and fc_map */
5235 phba->valid_vlan = 0;
5236 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5237 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5238 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5240 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5244 mqe = &mboxq->u.mqe;
5245 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq)) {
5247 goto out_free_mboxq;
5250 mp = (struct lpfc_dmabuf *)mboxq->ctx_buf;
5251 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5253 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5254 "(%d):2571 Mailbox cmd x%x Status x%x "
5255 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
5256 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
5257 "CQ: x%x x%x x%x x%x\n",
5258 mboxq->vport ? mboxq->vport->vpi : 0,
5259 bf_get(lpfc_mqe_command, mqe),
5260 bf_get(lpfc_mqe_status, mqe),
5261 mqe->un.mb_words[0], mqe->un.mb_words[1],
5262 mqe->un.mb_words[2], mqe->un.mb_words[3],
5263 mqe->un.mb_words[4], mqe->un.mb_words[5],
5264 mqe->un.mb_words[6], mqe->un.mb_words[7],
5265 mqe->un.mb_words[8], mqe->un.mb_words[9],
5266 mqe->un.mb_words[10], mqe->un.mb_words[11],
5267 mqe->un.mb_words[12], mqe->un.mb_words[13],
5268 mqe->un.mb_words[14], mqe->un.mb_words[15],
5269 mqe->un.mb_words[16], mqe->un.mb_words[50],
5271 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
5272 mboxq->mcqe.trailer);
5275 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5278 goto out_free_mboxq;
5280 data_length = mqe->un.mb_words[5];
5281 if (data_length > DMP_RGN23_SIZE) {
5282 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5285 goto out_free_mboxq;
5288 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
5289 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5294 mempool_free(mboxq, phba->mbox_mem_pool);
5299 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
5300 * @phba: pointer to lpfc hba data structure.
5301 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
5302 * @vpd: pointer to the memory to hold resulting port vpd data.
5303 * @vpd_size: On input, the number of bytes allocated to @vpd.
5304 * On output, the number of data bytes in @vpd.
5306 * This routine executes a READ_REV SLI4 mailbox command. In
5307 * addition, this routine gets the port vpd data.
5311 * -ENOMEM - could not allocated memory.
5314 lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
5315 uint8_t *vpd, uint32_t *vpd_size)
5319 struct lpfc_dmabuf *dmabuf;
5320 struct lpfc_mqe *mqe;
5322 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5327 * Get a DMA buffer for the vpd data resulting from the READ_REV
5330 dma_size = *vpd_size;
5331 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, dma_size,
5332 &dmabuf->phys, GFP_KERNEL);
5333 if (!dmabuf->virt) {
5339 * The SLI4 implementation of READ_REV conflicts at word1,
5340 * bits 31:16 and SLI4 adds vpd functionality not present
5341 * in SLI3. This code corrects the conflicts.
5343 lpfc_read_rev(phba, mboxq);
5344 mqe = &mboxq->u.mqe;
5345 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
5346 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
5347 mqe->un.read_rev.word1 &= 0x0000FFFF;
5348 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
5349 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
5351 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5353 dma_free_coherent(&phba->pcidev->dev, dma_size,
5354 dmabuf->virt, dmabuf->phys);
5360 * The available vpd length cannot be bigger than the
5361 * DMA buffer passed to the port. Catch the less than
5362 * case and update the caller's size.
5364 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
5365 *vpd_size = mqe->un.read_rev.avail_vpd_len;
5367 memcpy(vpd, dmabuf->virt, *vpd_size);
5369 dma_free_coherent(&phba->pcidev->dev, dma_size,
5370 dmabuf->virt, dmabuf->phys);
5376 * lpfc_sli4_get_ctl_attr - Retrieve SLI4 device controller attributes
5377 * @phba: pointer to lpfc hba data structure.
5379 * This routine retrieves SLI4 device physical port name this PCI function
5384 * otherwise - failed to retrieve controller attributes
5387 lpfc_sli4_get_ctl_attr(struct lpfc_hba *phba)
5389 LPFC_MBOXQ_t *mboxq;
5390 struct lpfc_mbx_get_cntl_attributes *mbx_cntl_attr;
5391 struct lpfc_controller_attribute *cntl_attr;
5392 void *virtaddr = NULL;
5393 uint32_t alloclen, reqlen;
5394 uint32_t shdr_status, shdr_add_status;
5395 union lpfc_sli4_cfg_shdr *shdr;
5398 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5402 /* Send COMMON_GET_CNTL_ATTRIBUTES mbox cmd */
5403 reqlen = sizeof(struct lpfc_mbx_get_cntl_attributes);
5404 alloclen = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5405 LPFC_MBOX_OPCODE_GET_CNTL_ATTRIBUTES, reqlen,
5406 LPFC_SLI4_MBX_NEMBED);
5408 if (alloclen < reqlen) {
5409 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5410 "3084 Allocated DMA memory size (%d) is "
5411 "less than the requested DMA memory size "
5412 "(%d)\n", alloclen, reqlen);
5414 goto out_free_mboxq;
5416 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5417 virtaddr = mboxq->sge_array->addr[0];
5418 mbx_cntl_attr = (struct lpfc_mbx_get_cntl_attributes *)virtaddr;
5419 shdr = &mbx_cntl_attr->cfg_shdr;
5420 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5421 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5422 if (shdr_status || shdr_add_status || rc) {
5423 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5424 "3085 Mailbox x%x (x%x/x%x) failed, "
5425 "rc:x%x, status:x%x, add_status:x%x\n",
5426 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5427 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
5428 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
5429 rc, shdr_status, shdr_add_status);
5431 goto out_free_mboxq;
5434 cntl_attr = &mbx_cntl_attr->cntl_attr;
5435 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
5436 phba->sli4_hba.lnk_info.lnk_tp =
5437 bf_get(lpfc_cntl_attr_lnk_type, cntl_attr);
5438 phba->sli4_hba.lnk_info.lnk_no =
5439 bf_get(lpfc_cntl_attr_lnk_numb, cntl_attr);
5441 memset(phba->BIOSVersion, 0, sizeof(phba->BIOSVersion));
5442 strlcat(phba->BIOSVersion, (char *)cntl_attr->bios_ver_str,
5443 sizeof(phba->BIOSVersion));
5445 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5446 "3086 lnk_type:%d, lnk_numb:%d, bios_ver:%s\n",
5447 phba->sli4_hba.lnk_info.lnk_tp,
5448 phba->sli4_hba.lnk_info.lnk_no,
5451 if (rc != MBX_TIMEOUT) {
5452 if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
5453 lpfc_sli4_mbox_cmd_free(phba, mboxq);
5455 mempool_free(mboxq, phba->mbox_mem_pool);
5461 * lpfc_sli4_retrieve_pport_name - Retrieve SLI4 device physical port name
5462 * @phba: pointer to lpfc hba data structure.
5464 * This routine retrieves SLI4 device physical port name this PCI function
5469 * otherwise - failed to retrieve physical port name
5472 lpfc_sli4_retrieve_pport_name(struct lpfc_hba *phba)
5474 LPFC_MBOXQ_t *mboxq;
5475 struct lpfc_mbx_get_port_name *get_port_name;
5476 uint32_t shdr_status, shdr_add_status;
5477 union lpfc_sli4_cfg_shdr *shdr;
5478 char cport_name = 0;
5481 /* We assume nothing at this point */
5482 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
5483 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_NON;
5485 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5488 /* obtain link type and link number via READ_CONFIG */
5489 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
5490 lpfc_sli4_read_config(phba);
5491 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL)
5492 goto retrieve_ppname;
5494 /* obtain link type and link number via COMMON_GET_CNTL_ATTRIBUTES */
5495 rc = lpfc_sli4_get_ctl_attr(phba);
5497 goto out_free_mboxq;
5500 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5501 LPFC_MBOX_OPCODE_GET_PORT_NAME,
5502 sizeof(struct lpfc_mbx_get_port_name) -
5503 sizeof(struct lpfc_sli4_cfg_mhdr),
5504 LPFC_SLI4_MBX_EMBED);
5505 get_port_name = &mboxq->u.mqe.un.get_port_name;
5506 shdr = (union lpfc_sli4_cfg_shdr *)&get_port_name->header.cfg_shdr;
5507 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_OPCODE_VERSION_1);
5508 bf_set(lpfc_mbx_get_port_name_lnk_type, &get_port_name->u.request,
5509 phba->sli4_hba.lnk_info.lnk_tp);
5510 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5511 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5512 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5513 if (shdr_status || shdr_add_status || rc) {
5514 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5515 "3087 Mailbox x%x (x%x/x%x) failed: "
5516 "rc:x%x, status:x%x, add_status:x%x\n",
5517 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5518 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
5519 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
5520 rc, shdr_status, shdr_add_status);
5522 goto out_free_mboxq;
5524 switch (phba->sli4_hba.lnk_info.lnk_no) {
5525 case LPFC_LINK_NUMBER_0:
5526 cport_name = bf_get(lpfc_mbx_get_port_name_name0,
5527 &get_port_name->u.response);
5528 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5530 case LPFC_LINK_NUMBER_1:
5531 cport_name = bf_get(lpfc_mbx_get_port_name_name1,
5532 &get_port_name->u.response);
5533 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5535 case LPFC_LINK_NUMBER_2:
5536 cport_name = bf_get(lpfc_mbx_get_port_name_name2,
5537 &get_port_name->u.response);
5538 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5540 case LPFC_LINK_NUMBER_3:
5541 cport_name = bf_get(lpfc_mbx_get_port_name_name3,
5542 &get_port_name->u.response);
5543 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5549 if (phba->sli4_hba.pport_name_sta == LPFC_SLI4_PPNAME_GET) {
5550 phba->Port[0] = cport_name;
5551 phba->Port[1] = '\0';
5552 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5553 "3091 SLI get port name: %s\n", phba->Port);
5557 if (rc != MBX_TIMEOUT) {
5558 if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
5559 lpfc_sli4_mbox_cmd_free(phba, mboxq);
5561 mempool_free(mboxq, phba->mbox_mem_pool);
5567 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
5568 * @phba: pointer to lpfc hba data structure.
5570 * This routine is called to explicitly arm the SLI4 device's completion and
5574 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
5577 struct lpfc_sli4_hba *sli4_hba = &phba->sli4_hba;
5578 struct lpfc_sli4_hdw_queue *qp;
5579 struct lpfc_queue *eq;
5581 sli4_hba->sli4_write_cq_db(phba, sli4_hba->mbx_cq, 0, LPFC_QUEUE_REARM);
5582 sli4_hba->sli4_write_cq_db(phba, sli4_hba->els_cq, 0, LPFC_QUEUE_REARM);
5583 if (sli4_hba->nvmels_cq)
5584 sli4_hba->sli4_write_cq_db(phba, sli4_hba->nvmels_cq, 0,
5587 if (sli4_hba->hdwq) {
5588 /* Loop thru all Hardware Queues */
5589 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
5590 qp = &sli4_hba->hdwq[qidx];
5591 /* ARM the corresponding CQ */
5592 sli4_hba->sli4_write_cq_db(phba, qp->io_cq, 0,
5596 /* Loop thru all IRQ vectors */
5597 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
5598 eq = sli4_hba->hba_eq_hdl[qidx].eq;
5599 /* ARM the corresponding EQ */
5600 sli4_hba->sli4_write_eq_db(phba, eq,
5601 0, LPFC_QUEUE_REARM);
5605 if (phba->nvmet_support) {
5606 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) {
5607 sli4_hba->sli4_write_cq_db(phba,
5608 sli4_hba->nvmet_cqset[qidx], 0,
5615 * lpfc_sli4_get_avail_extnt_rsrc - Get available resource extent count.
5616 * @phba: Pointer to HBA context object.
5617 * @type: The resource extent type.
5618 * @extnt_count: buffer to hold port available extent count.
5619 * @extnt_size: buffer to hold element count per extent.
5621 * This function calls the port and retrievs the number of available
5622 * extents and their size for a particular extent type.
5624 * Returns: 0 if successful. Nonzero otherwise.
5627 lpfc_sli4_get_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type,
5628 uint16_t *extnt_count, uint16_t *extnt_size)
5633 struct lpfc_mbx_get_rsrc_extent_info *rsrc_info;
5636 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5640 /* Find out how many extents are available for this resource type */
5641 length = (sizeof(struct lpfc_mbx_get_rsrc_extent_info) -
5642 sizeof(struct lpfc_sli4_cfg_mhdr));
5643 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5644 LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO,
5645 length, LPFC_SLI4_MBX_EMBED);
5647 /* Send an extents count of 0 - the GET doesn't use it. */
5648 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5649 LPFC_SLI4_MBX_EMBED);
5655 if (!phba->sli4_hba.intr_enable)
5656 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5658 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5659 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5666 rsrc_info = &mbox->u.mqe.un.rsrc_extent_info;
5667 if (bf_get(lpfc_mbox_hdr_status,
5668 &rsrc_info->header.cfg_shdr.response)) {
5669 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5670 "2930 Failed to get resource extents "
5671 "Status 0x%x Add'l Status 0x%x\n",
5672 bf_get(lpfc_mbox_hdr_status,
5673 &rsrc_info->header.cfg_shdr.response),
5674 bf_get(lpfc_mbox_hdr_add_status,
5675 &rsrc_info->header.cfg_shdr.response));
5680 *extnt_count = bf_get(lpfc_mbx_get_rsrc_extent_info_cnt,
5682 *extnt_size = bf_get(lpfc_mbx_get_rsrc_extent_info_size,
5685 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5686 "3162 Retrieved extents type-%d from port: count:%d, "
5687 "size:%d\n", type, *extnt_count, *extnt_size);
5690 mempool_free(mbox, phba->mbox_mem_pool);
5695 * lpfc_sli4_chk_avail_extnt_rsrc - Check for available SLI4 resource extents.
5696 * @phba: Pointer to HBA context object.
5697 * @type: The extent type to check.
5699 * This function reads the current available extents from the port and checks
5700 * if the extent count or extent size has changed since the last access.
5701 * Callers use this routine post port reset to understand if there is a
5702 * extent reprovisioning requirement.
5705 * -Error: error indicates problem.
5706 * 1: Extent count or size has changed.
5710 lpfc_sli4_chk_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type)
5712 uint16_t curr_ext_cnt, rsrc_ext_cnt;
5713 uint16_t size_diff, rsrc_ext_size;
5715 struct lpfc_rsrc_blks *rsrc_entry;
5716 struct list_head *rsrc_blk_list = NULL;
5720 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5727 case LPFC_RSC_TYPE_FCOE_RPI:
5728 rsrc_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5730 case LPFC_RSC_TYPE_FCOE_VPI:
5731 rsrc_blk_list = &phba->lpfc_vpi_blk_list;
5733 case LPFC_RSC_TYPE_FCOE_XRI:
5734 rsrc_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5736 case LPFC_RSC_TYPE_FCOE_VFI:
5737 rsrc_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5743 list_for_each_entry(rsrc_entry, rsrc_blk_list, list) {
5745 if (rsrc_entry->rsrc_size != rsrc_ext_size)
5749 if (curr_ext_cnt != rsrc_ext_cnt || size_diff != 0)
5756 * lpfc_sli4_cfg_post_extnts -
5757 * @phba: Pointer to HBA context object.
5758 * @extnt_cnt - number of available extents.
5759 * @type - the extent type (rpi, xri, vfi, vpi).
5760 * @emb - buffer to hold either MBX_EMBED or MBX_NEMBED operation.
5761 * @mbox - pointer to the caller's allocated mailbox structure.
5763 * This function executes the extents allocation request. It also
5764 * takes care of the amount of memory needed to allocate or get the
5765 * allocated extents. It is the caller's responsibility to evaluate
5769 * -Error: Error value describes the condition found.
5773 lpfc_sli4_cfg_post_extnts(struct lpfc_hba *phba, uint16_t extnt_cnt,
5774 uint16_t type, bool *emb, LPFC_MBOXQ_t *mbox)
5779 uint32_t alloc_len, mbox_tmo;
5781 /* Calculate the total requested length of the dma memory */
5782 req_len = extnt_cnt * sizeof(uint16_t);
5785 * Calculate the size of an embedded mailbox. The uint32_t
5786 * accounts for extents-specific word.
5788 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
5792 * Presume the allocation and response will fit into an embedded
5793 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5795 *emb = LPFC_SLI4_MBX_EMBED;
5796 if (req_len > emb_len) {
5797 req_len = extnt_cnt * sizeof(uint16_t) +
5798 sizeof(union lpfc_sli4_cfg_shdr) +
5800 *emb = LPFC_SLI4_MBX_NEMBED;
5803 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5804 LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT,
5806 if (alloc_len < req_len) {
5807 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5808 "2982 Allocated DMA memory size (x%x) is "
5809 "less than the requested DMA memory "
5810 "size (x%x)\n", alloc_len, req_len);
5813 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, extnt_cnt, type, *emb);
5817 if (!phba->sli4_hba.intr_enable)
5818 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5820 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5821 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5830 * lpfc_sli4_alloc_extent - Allocate an SLI4 resource extent.
5831 * @phba: Pointer to HBA context object.
5832 * @type: The resource extent type to allocate.
5834 * This function allocates the number of elements for the specified
5838 lpfc_sli4_alloc_extent(struct lpfc_hba *phba, uint16_t type)
5841 uint16_t rsrc_id_cnt, rsrc_cnt, rsrc_size;
5842 uint16_t rsrc_id, rsrc_start, j, k;
5845 unsigned long longs;
5846 unsigned long *bmask;
5847 struct lpfc_rsrc_blks *rsrc_blks;
5850 struct lpfc_id_range *id_array = NULL;
5851 void *virtaddr = NULL;
5852 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5853 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5854 struct list_head *ext_blk_list;
5856 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5862 if ((rsrc_cnt == 0) || (rsrc_size == 0)) {
5863 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5864 "3009 No available Resource Extents "
5865 "for resource type 0x%x: Count: 0x%x, "
5866 "Size 0x%x\n", type, rsrc_cnt,
5871 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_INIT | LOG_SLI,
5872 "2903 Post resource extents type-0x%x: "
5873 "count:%d, size %d\n", type, rsrc_cnt, rsrc_size);
5875 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5879 rc = lpfc_sli4_cfg_post_extnts(phba, rsrc_cnt, type, &emb, mbox);
5886 * Figure out where the response is located. Then get local pointers
5887 * to the response data. The port does not guarantee to respond to
5888 * all extents counts request so update the local variable with the
5889 * allocated count from the port.
5891 if (emb == LPFC_SLI4_MBX_EMBED) {
5892 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
5893 id_array = &rsrc_ext->u.rsp.id[0];
5894 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
5896 virtaddr = mbox->sge_array->addr[0];
5897 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
5898 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
5899 id_array = &n_rsrc->id;
5902 longs = ((rsrc_cnt * rsrc_size) + BITS_PER_LONG - 1) / BITS_PER_LONG;
5903 rsrc_id_cnt = rsrc_cnt * rsrc_size;
5906 * Based on the resource size and count, correct the base and max
5909 length = sizeof(struct lpfc_rsrc_blks);
5911 case LPFC_RSC_TYPE_FCOE_RPI:
5912 phba->sli4_hba.rpi_bmask = kcalloc(longs,
5913 sizeof(unsigned long),
5915 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5919 phba->sli4_hba.rpi_ids = kcalloc(rsrc_id_cnt,
5922 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5923 kfree(phba->sli4_hba.rpi_bmask);
5929 * The next_rpi was initialized with the maximum available
5930 * count but the port may allocate a smaller number. Catch
5931 * that case and update the next_rpi.
5933 phba->sli4_hba.next_rpi = rsrc_id_cnt;
5935 /* Initialize local ptrs for common extent processing later. */
5936 bmask = phba->sli4_hba.rpi_bmask;
5937 ids = phba->sli4_hba.rpi_ids;
5938 ext_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5940 case LPFC_RSC_TYPE_FCOE_VPI:
5941 phba->vpi_bmask = kcalloc(longs, sizeof(unsigned long),
5943 if (unlikely(!phba->vpi_bmask)) {
5947 phba->vpi_ids = kcalloc(rsrc_id_cnt, sizeof(uint16_t),
5949 if (unlikely(!phba->vpi_ids)) {
5950 kfree(phba->vpi_bmask);
5955 /* Initialize local ptrs for common extent processing later. */
5956 bmask = phba->vpi_bmask;
5957 ids = phba->vpi_ids;
5958 ext_blk_list = &phba->lpfc_vpi_blk_list;
5960 case LPFC_RSC_TYPE_FCOE_XRI:
5961 phba->sli4_hba.xri_bmask = kcalloc(longs,
5962 sizeof(unsigned long),
5964 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5968 phba->sli4_hba.max_cfg_param.xri_used = 0;
5969 phba->sli4_hba.xri_ids = kcalloc(rsrc_id_cnt,
5972 if (unlikely(!phba->sli4_hba.xri_ids)) {
5973 kfree(phba->sli4_hba.xri_bmask);
5978 /* Initialize local ptrs for common extent processing later. */
5979 bmask = phba->sli4_hba.xri_bmask;
5980 ids = phba->sli4_hba.xri_ids;
5981 ext_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5983 case LPFC_RSC_TYPE_FCOE_VFI:
5984 phba->sli4_hba.vfi_bmask = kcalloc(longs,
5985 sizeof(unsigned long),
5987 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5991 phba->sli4_hba.vfi_ids = kcalloc(rsrc_id_cnt,
5994 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5995 kfree(phba->sli4_hba.vfi_bmask);
6000 /* Initialize local ptrs for common extent processing later. */
6001 bmask = phba->sli4_hba.vfi_bmask;
6002 ids = phba->sli4_hba.vfi_ids;
6003 ext_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
6006 /* Unsupported Opcode. Fail call. */
6010 ext_blk_list = NULL;
6015 * Complete initializing the extent configuration with the
6016 * allocated ids assigned to this function. The bitmask serves
6017 * as an index into the array and manages the available ids. The
6018 * array just stores the ids communicated to the port via the wqes.
6020 for (i = 0, j = 0, k = 0; i < rsrc_cnt; i++) {
6022 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_0,
6025 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_1,
6028 rsrc_blks = kzalloc(length, GFP_KERNEL);
6029 if (unlikely(!rsrc_blks)) {
6035 rsrc_blks->rsrc_start = rsrc_id;
6036 rsrc_blks->rsrc_size = rsrc_size;
6037 list_add_tail(&rsrc_blks->list, ext_blk_list);
6038 rsrc_start = rsrc_id;
6039 if ((type == LPFC_RSC_TYPE_FCOE_XRI) && (j == 0)) {
6040 phba->sli4_hba.io_xri_start = rsrc_start +
6041 lpfc_sli4_get_iocb_cnt(phba);
6044 while (rsrc_id < (rsrc_start + rsrc_size)) {
6049 /* Entire word processed. Get next word.*/
6054 lpfc_sli4_mbox_cmd_free(phba, mbox);
6061 * lpfc_sli4_dealloc_extent - Deallocate an SLI4 resource extent.
6062 * @phba: Pointer to HBA context object.
6063 * @type: the extent's type.
6065 * This function deallocates all extents of a particular resource type.
6066 * SLI4 does not allow for deallocating a particular extent range. It
6067 * is the caller's responsibility to release all kernel memory resources.
6070 lpfc_sli4_dealloc_extent(struct lpfc_hba *phba, uint16_t type)
6073 uint32_t length, mbox_tmo = 0;
6075 struct lpfc_mbx_dealloc_rsrc_extents *dealloc_rsrc;
6076 struct lpfc_rsrc_blks *rsrc_blk, *rsrc_blk_next;
6078 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6083 * This function sends an embedded mailbox because it only sends the
6084 * the resource type. All extents of this type are released by the
6087 length = (sizeof(struct lpfc_mbx_dealloc_rsrc_extents) -
6088 sizeof(struct lpfc_sli4_cfg_mhdr));
6089 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6090 LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT,
6091 length, LPFC_SLI4_MBX_EMBED);
6093 /* Send an extents count of 0 - the dealloc doesn't use it. */
6094 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
6095 LPFC_SLI4_MBX_EMBED);
6100 if (!phba->sli4_hba.intr_enable)
6101 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
6103 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
6104 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
6111 dealloc_rsrc = &mbox->u.mqe.un.dealloc_rsrc_extents;
6112 if (bf_get(lpfc_mbox_hdr_status,
6113 &dealloc_rsrc->header.cfg_shdr.response)) {
6114 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
6115 "2919 Failed to release resource extents "
6116 "for type %d - Status 0x%x Add'l Status 0x%x. "
6117 "Resource memory not released.\n",
6119 bf_get(lpfc_mbox_hdr_status,
6120 &dealloc_rsrc->header.cfg_shdr.response),
6121 bf_get(lpfc_mbox_hdr_add_status,
6122 &dealloc_rsrc->header.cfg_shdr.response));
6127 /* Release kernel memory resources for the specific type. */
6129 case LPFC_RSC_TYPE_FCOE_VPI:
6130 kfree(phba->vpi_bmask);
6131 kfree(phba->vpi_ids);
6132 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6133 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
6134 &phba->lpfc_vpi_blk_list, list) {
6135 list_del_init(&rsrc_blk->list);
6138 phba->sli4_hba.max_cfg_param.vpi_used = 0;
6140 case LPFC_RSC_TYPE_FCOE_XRI:
6141 kfree(phba->sli4_hba.xri_bmask);
6142 kfree(phba->sli4_hba.xri_ids);
6143 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
6144 &phba->sli4_hba.lpfc_xri_blk_list, list) {
6145 list_del_init(&rsrc_blk->list);
6149 case LPFC_RSC_TYPE_FCOE_VFI:
6150 kfree(phba->sli4_hba.vfi_bmask);
6151 kfree(phba->sli4_hba.vfi_ids);
6152 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6153 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
6154 &phba->sli4_hba.lpfc_vfi_blk_list, list) {
6155 list_del_init(&rsrc_blk->list);
6159 case LPFC_RSC_TYPE_FCOE_RPI:
6160 /* RPI bitmask and physical id array are cleaned up earlier. */
6161 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
6162 &phba->sli4_hba.lpfc_rpi_blk_list, list) {
6163 list_del_init(&rsrc_blk->list);
6171 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6174 mempool_free(mbox, phba->mbox_mem_pool);
6179 lpfc_set_features(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox,
6184 len = sizeof(struct lpfc_mbx_set_feature) -
6185 sizeof(struct lpfc_sli4_cfg_mhdr);
6186 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6187 LPFC_MBOX_OPCODE_SET_FEATURES, len,
6188 LPFC_SLI4_MBX_EMBED);
6191 case LPFC_SET_UE_RECOVERY:
6192 bf_set(lpfc_mbx_set_feature_UER,
6193 &mbox->u.mqe.un.set_feature, 1);
6194 mbox->u.mqe.un.set_feature.feature = LPFC_SET_UE_RECOVERY;
6195 mbox->u.mqe.un.set_feature.param_len = 8;
6197 case LPFC_SET_MDS_DIAGS:
6198 bf_set(lpfc_mbx_set_feature_mds,
6199 &mbox->u.mqe.un.set_feature, 1);
6200 bf_set(lpfc_mbx_set_feature_mds_deep_loopbk,
6201 &mbox->u.mqe.un.set_feature, 1);
6202 mbox->u.mqe.un.set_feature.feature = LPFC_SET_MDS_DIAGS;
6203 mbox->u.mqe.un.set_feature.param_len = 8;
6211 * lpfc_ras_stop_fwlog: Disable FW logging by the adapter
6212 * @phba: Pointer to HBA context object.
6214 * Disable FW logging into host memory on the adapter. To
6215 * be done before reading logs from the host memory.
6218 lpfc_ras_stop_fwlog(struct lpfc_hba *phba)
6220 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6222 ras_fwlog->ras_active = false;
6224 /* Disable FW logging to host memory */
6225 writel(LPFC_CTL_PDEV_CTL_DDL_RAS,
6226 phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET);
6230 * lpfc_sli4_ras_dma_free - Free memory allocated for FW logging.
6231 * @phba: Pointer to HBA context object.
6233 * This function is called to free memory allocated for RAS FW logging
6234 * support in the driver.
6237 lpfc_sli4_ras_dma_free(struct lpfc_hba *phba)
6239 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6240 struct lpfc_dmabuf *dmabuf, *next;
6242 if (!list_empty(&ras_fwlog->fwlog_buff_list)) {
6243 list_for_each_entry_safe(dmabuf, next,
6244 &ras_fwlog->fwlog_buff_list,
6246 list_del(&dmabuf->list);
6247 dma_free_coherent(&phba->pcidev->dev,
6248 LPFC_RAS_MAX_ENTRY_SIZE,
6249 dmabuf->virt, dmabuf->phys);
6254 if (ras_fwlog->lwpd.virt) {
6255 dma_free_coherent(&phba->pcidev->dev,
6256 sizeof(uint32_t) * 2,
6257 ras_fwlog->lwpd.virt,
6258 ras_fwlog->lwpd.phys);
6259 ras_fwlog->lwpd.virt = NULL;
6262 ras_fwlog->ras_active = false;
6266 * lpfc_sli4_ras_dma_alloc: Allocate memory for FW support
6267 * @phba: Pointer to HBA context object.
6268 * @fwlog_buff_count: Count of buffers to be created.
6270 * This routine DMA memory for Log Write Position Data[LPWD] and buffer
6271 * to update FW log is posted to the adapter.
6272 * Buffer count is calculated based on module param ras_fwlog_buffsize
6273 * Size of each buffer posted to FW is 64K.
6277 lpfc_sli4_ras_dma_alloc(struct lpfc_hba *phba,
6278 uint32_t fwlog_buff_count)
6280 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6281 struct lpfc_dmabuf *dmabuf;
6284 /* Initialize List */
6285 INIT_LIST_HEAD(&ras_fwlog->fwlog_buff_list);
6287 /* Allocate memory for the LWPD */
6288 ras_fwlog->lwpd.virt = dma_alloc_coherent(&phba->pcidev->dev,
6289 sizeof(uint32_t) * 2,
6290 &ras_fwlog->lwpd.phys,
6292 if (!ras_fwlog->lwpd.virt) {
6293 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6294 "6185 LWPD Memory Alloc Failed\n");
6299 ras_fwlog->fw_buffcount = fwlog_buff_count;
6300 for (i = 0; i < ras_fwlog->fw_buffcount; i++) {
6301 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
6305 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6306 "6186 Memory Alloc failed FW logging");
6310 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
6311 LPFC_RAS_MAX_ENTRY_SIZE,
6312 &dmabuf->phys, GFP_KERNEL);
6313 if (!dmabuf->virt) {
6316 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6317 "6187 DMA Alloc Failed FW logging");
6320 dmabuf->buffer_tag = i;
6321 list_add_tail(&dmabuf->list, &ras_fwlog->fwlog_buff_list);
6326 lpfc_sli4_ras_dma_free(phba);
6332 * lpfc_sli4_ras_mbox_cmpl: Completion handler for RAS MBX command
6333 * @phba: pointer to lpfc hba data structure.
6334 * @pmboxq: pointer to the driver internal queue element for mailbox command.
6336 * Completion handler for driver's RAS MBX command to the device.
6339 lpfc_sli4_ras_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
6342 union lpfc_sli4_cfg_shdr *shdr;
6343 uint32_t shdr_status, shdr_add_status;
6344 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6348 shdr = (union lpfc_sli4_cfg_shdr *)
6349 &pmb->u.mqe.un.ras_fwlog.header.cfg_shdr;
6350 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6351 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6353 if (mb->mbxStatus != MBX_SUCCESS || shdr_status) {
6354 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
6355 "6188 FW LOG mailbox "
6356 "completed with status x%x add_status x%x,"
6357 " mbx status x%x\n",
6358 shdr_status, shdr_add_status, mb->mbxStatus);
6360 ras_fwlog->ras_hwsupport = false;
6364 ras_fwlog->ras_active = true;
6365 mempool_free(pmb, phba->mbox_mem_pool);
6370 /* Free RAS DMA memory */
6371 lpfc_sli4_ras_dma_free(phba);
6372 mempool_free(pmb, phba->mbox_mem_pool);
6376 * lpfc_sli4_ras_fwlog_init: Initialize memory and post RAS MBX command
6377 * @phba: pointer to lpfc hba data structure.
6378 * @fwlog_level: Logging verbosity level.
6379 * @fwlog_enable: Enable/Disable logging.
6381 * Initialize memory and post mailbox command to enable FW logging in host
6385 lpfc_sli4_ras_fwlog_init(struct lpfc_hba *phba,
6386 uint32_t fwlog_level,
6387 uint32_t fwlog_enable)
6389 struct lpfc_ras_fwlog *ras_fwlog = &phba->ras_fwlog;
6390 struct lpfc_mbx_set_ras_fwlog *mbx_fwlog = NULL;
6391 struct lpfc_dmabuf *dmabuf;
6393 uint32_t len = 0, fwlog_buffsize, fwlog_entry_count;
6396 fwlog_buffsize = (LPFC_RAS_MIN_BUFF_POST_SIZE *
6397 phba->cfg_ras_fwlog_buffsize);
6398 fwlog_entry_count = (fwlog_buffsize/LPFC_RAS_MAX_ENTRY_SIZE);
6401 * If re-enabling FW logging support use earlier allocated
6402 * DMA buffers while posting MBX command.
6404 if (!ras_fwlog->lwpd.virt) {
6405 rc = lpfc_sli4_ras_dma_alloc(phba, fwlog_entry_count);
6407 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6408 "6189 FW Log Memory Allocation Failed");
6413 /* Setup Mailbox command */
6414 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6416 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6417 "6190 RAS MBX Alloc Failed");
6422 ras_fwlog->fw_loglevel = fwlog_level;
6423 len = (sizeof(struct lpfc_mbx_set_ras_fwlog) -
6424 sizeof(struct lpfc_sli4_cfg_mhdr));
6426 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_LOWLEVEL,
6427 LPFC_MBOX_OPCODE_SET_DIAG_LOG_OPTION,
6428 len, LPFC_SLI4_MBX_EMBED);
6430 mbx_fwlog = (struct lpfc_mbx_set_ras_fwlog *)&mbox->u.mqe.un.ras_fwlog;
6431 bf_set(lpfc_fwlog_enable, &mbx_fwlog->u.request,
6433 bf_set(lpfc_fwlog_loglvl, &mbx_fwlog->u.request,
6434 ras_fwlog->fw_loglevel);
6435 bf_set(lpfc_fwlog_buffcnt, &mbx_fwlog->u.request,
6436 ras_fwlog->fw_buffcount);
6437 bf_set(lpfc_fwlog_buffsz, &mbx_fwlog->u.request,
6438 LPFC_RAS_MAX_ENTRY_SIZE/SLI4_PAGE_SIZE);
6440 /* Update DMA buffer address */
6441 list_for_each_entry(dmabuf, &ras_fwlog->fwlog_buff_list, list) {
6442 memset(dmabuf->virt, 0, LPFC_RAS_MAX_ENTRY_SIZE);
6444 mbx_fwlog->u.request.buff_fwlog[dmabuf->buffer_tag].addr_lo =
6445 putPaddrLow(dmabuf->phys);
6447 mbx_fwlog->u.request.buff_fwlog[dmabuf->buffer_tag].addr_hi =
6448 putPaddrHigh(dmabuf->phys);
6451 /* Update LPWD address */
6452 mbx_fwlog->u.request.lwpd.addr_lo = putPaddrLow(ras_fwlog->lwpd.phys);
6453 mbx_fwlog->u.request.lwpd.addr_hi = putPaddrHigh(ras_fwlog->lwpd.phys);
6455 mbox->vport = phba->pport;
6456 mbox->mbox_cmpl = lpfc_sli4_ras_mbox_cmpl;
6458 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
6460 if (rc == MBX_NOT_FINISHED) {
6461 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6462 "6191 FW-Log Mailbox failed. "
6463 "status %d mbxStatus : x%x", rc,
6464 bf_get(lpfc_mqe_status, &mbox->u.mqe));
6465 mempool_free(mbox, phba->mbox_mem_pool);
6472 lpfc_sli4_ras_dma_free(phba);
6478 * lpfc_sli4_ras_setup - Check if RAS supported on the adapter
6479 * @phba: Pointer to HBA context object.
6481 * Check if RAS is supported on the adapter and initialize it.
6484 lpfc_sli4_ras_setup(struct lpfc_hba *phba)
6486 /* Check RAS FW Log needs to be enabled or not */
6487 if (lpfc_check_fwlog_support(phba))
6490 lpfc_sli4_ras_fwlog_init(phba, phba->cfg_ras_fwlog_level,
6491 LPFC_RAS_ENABLE_LOGGING);
6495 * lpfc_sli4_alloc_resource_identifiers - Allocate all SLI4 resource extents.
6496 * @phba: Pointer to HBA context object.
6498 * This function allocates all SLI4 resource identifiers.
6501 lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba *phba)
6503 int i, rc, error = 0;
6504 uint16_t count, base;
6505 unsigned long longs;
6507 if (!phba->sli4_hba.rpi_hdrs_in_use)
6508 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
6509 if (phba->sli4_hba.extents_in_use) {
6511 * The port supports resource extents. The XRI, VPI, VFI, RPI
6512 * resource extent count must be read and allocated before
6513 * provisioning the resource id arrays.
6515 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
6516 LPFC_IDX_RSRC_RDY) {
6518 * Extent-based resources are set - the driver could
6519 * be in a port reset. Figure out if any corrective
6520 * actions need to be taken.
6522 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
6523 LPFC_RSC_TYPE_FCOE_VFI);
6526 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
6527 LPFC_RSC_TYPE_FCOE_VPI);
6530 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
6531 LPFC_RSC_TYPE_FCOE_XRI);
6534 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
6535 LPFC_RSC_TYPE_FCOE_RPI);
6540 * It's possible that the number of resources
6541 * provided to this port instance changed between
6542 * resets. Detect this condition and reallocate
6543 * resources. Otherwise, there is no action.
6546 lpfc_printf_log(phba, KERN_INFO,
6547 LOG_MBOX | LOG_INIT,
6548 "2931 Detected extent resource "
6549 "change. Reallocating all "
6551 rc = lpfc_sli4_dealloc_extent(phba,
6552 LPFC_RSC_TYPE_FCOE_VFI);
6553 rc = lpfc_sli4_dealloc_extent(phba,
6554 LPFC_RSC_TYPE_FCOE_VPI);
6555 rc = lpfc_sli4_dealloc_extent(phba,
6556 LPFC_RSC_TYPE_FCOE_XRI);
6557 rc = lpfc_sli4_dealloc_extent(phba,
6558 LPFC_RSC_TYPE_FCOE_RPI);
6563 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
6567 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
6571 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
6575 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
6578 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
6583 * The port does not support resource extents. The XRI, VPI,
6584 * VFI, RPI resource ids were determined from READ_CONFIG.
6585 * Just allocate the bitmasks and provision the resource id
6586 * arrays. If a port reset is active, the resources don't
6587 * need any action - just exit.
6589 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
6590 LPFC_IDX_RSRC_RDY) {
6591 lpfc_sli4_dealloc_resource_identifiers(phba);
6592 lpfc_sli4_remove_rpis(phba);
6595 count = phba->sli4_hba.max_cfg_param.max_rpi;
6597 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6598 "3279 Invalid provisioning of "
6603 base = phba->sli4_hba.max_cfg_param.rpi_base;
6604 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6605 phba->sli4_hba.rpi_bmask = kcalloc(longs,
6606 sizeof(unsigned long),
6608 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
6612 phba->sli4_hba.rpi_ids = kcalloc(count, sizeof(uint16_t),
6614 if (unlikely(!phba->sli4_hba.rpi_ids)) {
6616 goto free_rpi_bmask;
6619 for (i = 0; i < count; i++)
6620 phba->sli4_hba.rpi_ids[i] = base + i;
6623 count = phba->sli4_hba.max_cfg_param.max_vpi;
6625 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6626 "3280 Invalid provisioning of "
6631 base = phba->sli4_hba.max_cfg_param.vpi_base;
6632 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6633 phba->vpi_bmask = kcalloc(longs, sizeof(unsigned long),
6635 if (unlikely(!phba->vpi_bmask)) {
6639 phba->vpi_ids = kcalloc(count, sizeof(uint16_t),
6641 if (unlikely(!phba->vpi_ids)) {
6643 goto free_vpi_bmask;
6646 for (i = 0; i < count; i++)
6647 phba->vpi_ids[i] = base + i;
6650 count = phba->sli4_hba.max_cfg_param.max_xri;
6652 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6653 "3281 Invalid provisioning of "
6658 base = phba->sli4_hba.max_cfg_param.xri_base;
6659 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6660 phba->sli4_hba.xri_bmask = kcalloc(longs,
6661 sizeof(unsigned long),
6663 if (unlikely(!phba->sli4_hba.xri_bmask)) {
6667 phba->sli4_hba.max_cfg_param.xri_used = 0;
6668 phba->sli4_hba.xri_ids = kcalloc(count, sizeof(uint16_t),
6670 if (unlikely(!phba->sli4_hba.xri_ids)) {
6672 goto free_xri_bmask;
6675 for (i = 0; i < count; i++)
6676 phba->sli4_hba.xri_ids[i] = base + i;
6679 count = phba->sli4_hba.max_cfg_param.max_vfi;
6681 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6682 "3282 Invalid provisioning of "
6687 base = phba->sli4_hba.max_cfg_param.vfi_base;
6688 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6689 phba->sli4_hba.vfi_bmask = kcalloc(longs,
6690 sizeof(unsigned long),
6692 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
6696 phba->sli4_hba.vfi_ids = kcalloc(count, sizeof(uint16_t),
6698 if (unlikely(!phba->sli4_hba.vfi_ids)) {
6700 goto free_vfi_bmask;
6703 for (i = 0; i < count; i++)
6704 phba->sli4_hba.vfi_ids[i] = base + i;
6707 * Mark all resources ready. An HBA reset doesn't need
6708 * to reset the initialization.
6710 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
6716 kfree(phba->sli4_hba.vfi_bmask);
6717 phba->sli4_hba.vfi_bmask = NULL;
6719 kfree(phba->sli4_hba.xri_ids);
6720 phba->sli4_hba.xri_ids = NULL;
6722 kfree(phba->sli4_hba.xri_bmask);
6723 phba->sli4_hba.xri_bmask = NULL;
6725 kfree(phba->vpi_ids);
6726 phba->vpi_ids = NULL;
6728 kfree(phba->vpi_bmask);
6729 phba->vpi_bmask = NULL;
6731 kfree(phba->sli4_hba.rpi_ids);
6732 phba->sli4_hba.rpi_ids = NULL;
6734 kfree(phba->sli4_hba.rpi_bmask);
6735 phba->sli4_hba.rpi_bmask = NULL;
6741 * lpfc_sli4_dealloc_resource_identifiers - Deallocate all SLI4 resource extents.
6742 * @phba: Pointer to HBA context object.
6744 * This function allocates the number of elements for the specified
6748 lpfc_sli4_dealloc_resource_identifiers(struct lpfc_hba *phba)
6750 if (phba->sli4_hba.extents_in_use) {
6751 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
6752 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
6753 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
6754 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
6756 kfree(phba->vpi_bmask);
6757 phba->sli4_hba.max_cfg_param.vpi_used = 0;
6758 kfree(phba->vpi_ids);
6759 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6760 kfree(phba->sli4_hba.xri_bmask);
6761 kfree(phba->sli4_hba.xri_ids);
6762 kfree(phba->sli4_hba.vfi_bmask);
6763 kfree(phba->sli4_hba.vfi_ids);
6764 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6765 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6772 * lpfc_sli4_get_allocated_extnts - Get the port's allocated extents.
6773 * @phba: Pointer to HBA context object.
6774 * @type: The resource extent type.
6775 * @extnt_count: buffer to hold port extent count response
6776 * @extnt_size: buffer to hold port extent size response.
6778 * This function calls the port to read the host allocated extents
6779 * for a particular type.
6782 lpfc_sli4_get_allocated_extnts(struct lpfc_hba *phba, uint16_t type,
6783 uint16_t *extnt_cnt, uint16_t *extnt_size)
6787 uint16_t curr_blks = 0;
6788 uint32_t req_len, emb_len;
6789 uint32_t alloc_len, mbox_tmo;
6790 struct list_head *blk_list_head;
6791 struct lpfc_rsrc_blks *rsrc_blk;
6793 void *virtaddr = NULL;
6794 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
6795 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
6796 union lpfc_sli4_cfg_shdr *shdr;
6799 case LPFC_RSC_TYPE_FCOE_VPI:
6800 blk_list_head = &phba->lpfc_vpi_blk_list;
6802 case LPFC_RSC_TYPE_FCOE_XRI:
6803 blk_list_head = &phba->sli4_hba.lpfc_xri_blk_list;
6805 case LPFC_RSC_TYPE_FCOE_VFI:
6806 blk_list_head = &phba->sli4_hba.lpfc_vfi_blk_list;
6808 case LPFC_RSC_TYPE_FCOE_RPI:
6809 blk_list_head = &phba->sli4_hba.lpfc_rpi_blk_list;
6815 /* Count the number of extents currently allocatd for this type. */
6816 list_for_each_entry(rsrc_blk, blk_list_head, list) {
6817 if (curr_blks == 0) {
6819 * The GET_ALLOCATED mailbox does not return the size,
6820 * just the count. The size should be just the size
6821 * stored in the current allocated block and all sizes
6822 * for an extent type are the same so set the return
6825 *extnt_size = rsrc_blk->rsrc_size;
6831 * Calculate the size of an embedded mailbox. The uint32_t
6832 * accounts for extents-specific word.
6834 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
6838 * Presume the allocation and response will fit into an embedded
6839 * mailbox. If not true, reconfigure to a non-embedded mailbox.
6841 emb = LPFC_SLI4_MBX_EMBED;
6843 if (req_len > emb_len) {
6844 req_len = curr_blks * sizeof(uint16_t) +
6845 sizeof(union lpfc_sli4_cfg_shdr) +
6847 emb = LPFC_SLI4_MBX_NEMBED;
6850 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6853 memset(mbox, 0, sizeof(LPFC_MBOXQ_t));
6855 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6856 LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT,
6858 if (alloc_len < req_len) {
6859 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6860 "2983 Allocated DMA memory size (x%x) is "
6861 "less than the requested DMA memory "
6862 "size (x%x)\n", alloc_len, req_len);
6866 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, curr_blks, type, emb);
6872 if (!phba->sli4_hba.intr_enable)
6873 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
6875 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
6876 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
6885 * Figure out where the response is located. Then get local pointers
6886 * to the response data. The port does not guarantee to respond to
6887 * all extents counts request so update the local variable with the
6888 * allocated count from the port.
6890 if (emb == LPFC_SLI4_MBX_EMBED) {
6891 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
6892 shdr = &rsrc_ext->header.cfg_shdr;
6893 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
6895 virtaddr = mbox->sge_array->addr[0];
6896 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
6897 shdr = &n_rsrc->cfg_shdr;
6898 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
6901 if (bf_get(lpfc_mbox_hdr_status, &shdr->response)) {
6902 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
6903 "2984 Failed to read allocated resources "
6904 "for type %d - Status 0x%x Add'l Status 0x%x.\n",
6906 bf_get(lpfc_mbox_hdr_status, &shdr->response),
6907 bf_get(lpfc_mbox_hdr_add_status, &shdr->response));
6912 lpfc_sli4_mbox_cmd_free(phba, mbox);
6917 * lpfc_sli4_repost_sgl_list - Repost the buffers sgl pages as block
6918 * @phba: pointer to lpfc hba data structure.
6919 * @pring: Pointer to driver SLI ring object.
6920 * @sgl_list: linked link of sgl buffers to post
6921 * @cnt: number of linked list buffers
6923 * This routine walks the list of buffers that have been allocated and
6924 * repost them to the port by using SGL block post. This is needed after a
6925 * pci_function_reset/warm_start or start. It attempts to construct blocks
6926 * of buffer sgls which contains contiguous xris and uses the non-embedded
6927 * SGL block post mailbox commands to post them to the port. For single
6928 * buffer sgl with non-contiguous xri, if any, it shall use embedded SGL post
6929 * mailbox command for posting.
6931 * Returns: 0 = success, non-zero failure.
6934 lpfc_sli4_repost_sgl_list(struct lpfc_hba *phba,
6935 struct list_head *sgl_list, int cnt)
6937 struct lpfc_sglq *sglq_entry = NULL;
6938 struct lpfc_sglq *sglq_entry_next = NULL;
6939 struct lpfc_sglq *sglq_entry_first = NULL;
6940 int status, total_cnt;
6941 int post_cnt = 0, num_posted = 0, block_cnt = 0;
6942 int last_xritag = NO_XRI;
6943 LIST_HEAD(prep_sgl_list);
6944 LIST_HEAD(blck_sgl_list);
6945 LIST_HEAD(allc_sgl_list);
6946 LIST_HEAD(post_sgl_list);
6947 LIST_HEAD(free_sgl_list);
6949 spin_lock_irq(&phba->hbalock);
6950 spin_lock(&phba->sli4_hba.sgl_list_lock);
6951 list_splice_init(sgl_list, &allc_sgl_list);
6952 spin_unlock(&phba->sli4_hba.sgl_list_lock);
6953 spin_unlock_irq(&phba->hbalock);
6956 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
6957 &allc_sgl_list, list) {
6958 list_del_init(&sglq_entry->list);
6960 if ((last_xritag != NO_XRI) &&
6961 (sglq_entry->sli4_xritag != last_xritag + 1)) {
6962 /* a hole in xri block, form a sgl posting block */
6963 list_splice_init(&prep_sgl_list, &blck_sgl_list);
6964 post_cnt = block_cnt - 1;
6965 /* prepare list for next posting block */
6966 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6969 /* prepare list for next posting block */
6970 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6971 /* enough sgls for non-embed sgl mbox command */
6972 if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
6973 list_splice_init(&prep_sgl_list,
6975 post_cnt = block_cnt;
6981 /* keep track of last sgl's xritag */
6982 last_xritag = sglq_entry->sli4_xritag;
6984 /* end of repost sgl list condition for buffers */
6985 if (num_posted == total_cnt) {
6986 if (post_cnt == 0) {
6987 list_splice_init(&prep_sgl_list,
6989 post_cnt = block_cnt;
6990 } else if (block_cnt == 1) {
6991 status = lpfc_sli4_post_sgl(phba,
6992 sglq_entry->phys, 0,
6993 sglq_entry->sli4_xritag);
6995 /* successful, put sgl to posted list */
6996 list_add_tail(&sglq_entry->list,
6999 /* Failure, put sgl to free list */
7000 lpfc_printf_log(phba, KERN_WARNING,
7002 "3159 Failed to post "
7003 "sgl, xritag:x%x\n",
7004 sglq_entry->sli4_xritag);
7005 list_add_tail(&sglq_entry->list,
7012 /* continue until a nembed page worth of sgls */
7016 /* post the buffer list sgls as a block */
7017 status = lpfc_sli4_post_sgl_list(phba, &blck_sgl_list,
7021 /* success, put sgl list to posted sgl list */
7022 list_splice_init(&blck_sgl_list, &post_sgl_list);
7024 /* Failure, put sgl list to free sgl list */
7025 sglq_entry_first = list_first_entry(&blck_sgl_list,
7028 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
7029 "3160 Failed to post sgl-list, "
7031 sglq_entry_first->sli4_xritag,
7032 (sglq_entry_first->sli4_xritag +
7034 list_splice_init(&blck_sgl_list, &free_sgl_list);
7035 total_cnt -= post_cnt;
7038 /* don't reset xirtag due to hole in xri block */
7040 last_xritag = NO_XRI;
7042 /* reset sgl post count for next round of posting */
7046 /* free the sgls failed to post */
7047 lpfc_free_sgl_list(phba, &free_sgl_list);
7049 /* push sgls posted to the available list */
7050 if (!list_empty(&post_sgl_list)) {
7051 spin_lock_irq(&phba->hbalock);
7052 spin_lock(&phba->sli4_hba.sgl_list_lock);
7053 list_splice_init(&post_sgl_list, sgl_list);
7054 spin_unlock(&phba->sli4_hba.sgl_list_lock);
7055 spin_unlock_irq(&phba->hbalock);
7057 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7058 "3161 Failure to post sgl to port.\n");
7062 /* return the number of XRIs actually posted */
7067 * lpfc_sli4_repost_io_sgl_list - Repost all the allocated nvme buffer sgls
7068 * @phba: pointer to lpfc hba data structure.
7070 * This routine walks the list of nvme buffers that have been allocated and
7071 * repost them to the port by using SGL block post. This is needed after a
7072 * pci_function_reset/warm_start or start. The lpfc_hba_down_post_s4 routine
7073 * is responsible for moving all nvme buffers on the lpfc_abts_nvme_sgl_list
7074 * to the lpfc_io_buf_list. If the repost fails, reject all nvme buffers.
7076 * Returns: 0 = success, non-zero failure.
7079 lpfc_sli4_repost_io_sgl_list(struct lpfc_hba *phba)
7081 LIST_HEAD(post_nblist);
7082 int num_posted, rc = 0;
7084 /* get all NVME buffers need to repost to a local list */
7085 lpfc_io_buf_flush(phba, &post_nblist);
7087 /* post the list of nvme buffer sgls to port if available */
7088 if (!list_empty(&post_nblist)) {
7089 num_posted = lpfc_sli4_post_io_sgl_list(
7090 phba, &post_nblist, phba->sli4_hba.io_xri_cnt);
7091 /* failed to post any nvme buffer, return error */
7092 if (num_posted == 0)
7099 lpfc_set_host_data(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
7103 len = sizeof(struct lpfc_mbx_set_host_data) -
7104 sizeof(struct lpfc_sli4_cfg_mhdr);
7105 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
7106 LPFC_MBOX_OPCODE_SET_HOST_DATA, len,
7107 LPFC_SLI4_MBX_EMBED);
7109 mbox->u.mqe.un.set_host_data.param_id = LPFC_SET_HOST_OS_DRIVER_VERSION;
7110 mbox->u.mqe.un.set_host_data.param_len =
7111 LPFC_HOST_OS_DRIVER_VERSION_SIZE;
7112 snprintf(mbox->u.mqe.un.set_host_data.data,
7113 LPFC_HOST_OS_DRIVER_VERSION_SIZE,
7114 "Linux %s v"LPFC_DRIVER_VERSION,
7115 (phba->hba_flag & HBA_FCOE_MODE) ? "FCoE" : "FC");
7119 lpfc_post_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *hrq,
7120 struct lpfc_queue *drq, int count, int idx)
7123 struct lpfc_rqe hrqe;
7124 struct lpfc_rqe drqe;
7125 struct lpfc_rqb *rqbp;
7126 unsigned long flags;
7127 struct rqb_dmabuf *rqb_buffer;
7128 LIST_HEAD(rqb_buf_list);
7130 spin_lock_irqsave(&phba->hbalock, flags);
7132 for (i = 0; i < count; i++) {
7133 /* IF RQ is already full, don't bother */
7134 if (rqbp->buffer_count + i >= rqbp->entry_count - 1)
7136 rqb_buffer = rqbp->rqb_alloc_buffer(phba);
7139 rqb_buffer->hrq = hrq;
7140 rqb_buffer->drq = drq;
7141 rqb_buffer->idx = idx;
7142 list_add_tail(&rqb_buffer->hbuf.list, &rqb_buf_list);
7144 while (!list_empty(&rqb_buf_list)) {
7145 list_remove_head(&rqb_buf_list, rqb_buffer, struct rqb_dmabuf,
7148 hrqe.address_lo = putPaddrLow(rqb_buffer->hbuf.phys);
7149 hrqe.address_hi = putPaddrHigh(rqb_buffer->hbuf.phys);
7150 drqe.address_lo = putPaddrLow(rqb_buffer->dbuf.phys);
7151 drqe.address_hi = putPaddrHigh(rqb_buffer->dbuf.phys);
7152 rc = lpfc_sli4_rq_put(hrq, drq, &hrqe, &drqe);
7154 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7155 "6421 Cannot post to HRQ %d: %x %x %x "
7163 rqbp->rqb_free_buffer(phba, rqb_buffer);
7165 list_add_tail(&rqb_buffer->hbuf.list,
7166 &rqbp->rqb_buffer_list);
7167 rqbp->buffer_count++;
7170 spin_unlock_irqrestore(&phba->hbalock, flags);
7175 * lpfc_sli4_hba_setup - SLI4 device initialization PCI function
7176 * @phba: Pointer to HBA context object.
7178 * This function is the main SLI4 device initialization PCI function. This
7179 * function is called by the HBA initialization code, HBA reset code and
7180 * HBA error attention handler code. Caller is not required to hold any
7184 lpfc_sli4_hba_setup(struct lpfc_hba *phba)
7186 int rc, i, cnt, len;
7187 LPFC_MBOXQ_t *mboxq;
7188 struct lpfc_mqe *mqe;
7191 uint32_t ftr_rsp = 0;
7192 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
7193 struct lpfc_vport *vport = phba->pport;
7194 struct lpfc_dmabuf *mp;
7195 struct lpfc_rqb *rqbp;
7197 /* Perform a PCI function reset to start from clean */
7198 rc = lpfc_pci_function_reset(phba);
7202 /* Check the HBA Host Status Register for readyness */
7203 rc = lpfc_sli4_post_status_check(phba);
7207 spin_lock_irq(&phba->hbalock);
7208 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
7209 spin_unlock_irq(&phba->hbalock);
7213 * Allocate a single mailbox container for initializing the
7216 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7220 /* Issue READ_REV to collect vpd and FW information. */
7221 vpd_size = SLI4_PAGE_SIZE;
7222 vpd = kzalloc(vpd_size, GFP_KERNEL);
7228 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
7234 mqe = &mboxq->u.mqe;
7235 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
7236 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev)) {
7237 phba->hba_flag |= HBA_FCOE_MODE;
7238 phba->fcp_embed_io = 0; /* SLI4 FC support only */
7240 phba->hba_flag &= ~HBA_FCOE_MODE;
7243 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
7245 phba->hba_flag |= HBA_FIP_SUPPORT;
7247 phba->hba_flag &= ~HBA_FIP_SUPPORT;
7249 phba->hba_flag &= ~HBA_IOQ_FLUSH;
7251 if (phba->sli_rev != LPFC_SLI_REV4) {
7252 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7253 "0376 READ_REV Error. SLI Level %d "
7254 "FCoE enabled %d\n",
7255 phba->sli_rev, phba->hba_flag & HBA_FCOE_MODE);
7262 * Continue initialization with default values even if driver failed
7263 * to read FCoE param config regions, only read parameters if the
7266 if (phba->hba_flag & HBA_FCOE_MODE &&
7267 lpfc_sli4_read_fcoe_params(phba))
7268 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_INIT,
7269 "2570 Failed to read FCoE parameters\n");
7272 * Retrieve sli4 device physical port name, failure of doing it
7273 * is considered as non-fatal.
7275 rc = lpfc_sli4_retrieve_pport_name(phba);
7277 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7278 "3080 Successful retrieving SLI4 device "
7279 "physical port name: %s.\n", phba->Port);
7281 rc = lpfc_sli4_get_ctl_attr(phba);
7283 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7284 "8351 Successful retrieving SLI4 device "
7288 * Evaluate the read rev and vpd data. Populate the driver
7289 * state with the results. If this routine fails, the failure
7290 * is not fatal as the driver will use generic values.
7292 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
7293 if (unlikely(!rc)) {
7294 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7295 "0377 Error %d parsing vpd. "
7296 "Using defaults.\n", rc);
7301 /* Save information as VPD data */
7302 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
7303 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
7306 * This is because first G7 ASIC doesn't support the standard
7307 * 0x5a NVME cmd descriptor type/subtype
7309 if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
7310 LPFC_SLI_INTF_IF_TYPE_6) &&
7311 (phba->vpd.rev.biuRev == LPFC_G7_ASIC_1) &&
7312 (phba->vpd.rev.smRev == 0) &&
7313 (phba->cfg_nvme_embed_cmd == 1))
7314 phba->cfg_nvme_embed_cmd = 0;
7316 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
7317 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
7319 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
7321 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
7323 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
7325 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
7326 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
7327 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
7328 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
7329 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
7330 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
7331 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7332 "(%d):0380 READ_REV Status x%x "
7333 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
7334 mboxq->vport ? mboxq->vport->vpi : 0,
7335 bf_get(lpfc_mqe_status, mqe),
7336 phba->vpd.rev.opFwName,
7337 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
7338 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
7340 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */
7341 rc = (phba->sli4_hba.max_cfg_param.max_xri >> 3);
7342 if (phba->pport->cfg_lun_queue_depth > rc) {
7343 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7344 "3362 LUN queue depth changed from %d to %d\n",
7345 phba->pport->cfg_lun_queue_depth, rc);
7346 phba->pport->cfg_lun_queue_depth = rc;
7349 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
7350 LPFC_SLI_INTF_IF_TYPE_0) {
7351 lpfc_set_features(phba, mboxq, LPFC_SET_UE_RECOVERY);
7352 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7353 if (rc == MBX_SUCCESS) {
7354 phba->hba_flag |= HBA_RECOVERABLE_UE;
7355 /* Set 1Sec interval to detect UE */
7356 phba->eratt_poll_interval = 1;
7357 phba->sli4_hba.ue_to_sr = bf_get(
7358 lpfc_mbx_set_feature_UESR,
7359 &mboxq->u.mqe.un.set_feature);
7360 phba->sli4_hba.ue_to_rp = bf_get(
7361 lpfc_mbx_set_feature_UERP,
7362 &mboxq->u.mqe.un.set_feature);
7366 if (phba->cfg_enable_mds_diags && phba->mds_diags_support) {
7367 /* Enable MDS Diagnostics only if the SLI Port supports it */
7368 lpfc_set_features(phba, mboxq, LPFC_SET_MDS_DIAGS);
7369 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7370 if (rc != MBX_SUCCESS)
7371 phba->mds_diags_support = 0;
7375 * Discover the port's supported feature set and match it against the
7378 lpfc_request_features(phba, mboxq);
7379 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7386 * The port must support FCP initiator mode as this is the
7387 * only mode running in the host.
7389 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
7390 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7391 "0378 No support for fcpi mode.\n");
7395 /* Performance Hints are ONLY for FCoE */
7396 if (phba->hba_flag & HBA_FCOE_MODE) {
7397 if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh, &mqe->un.req_ftrs))
7398 phba->sli3_options |= LPFC_SLI4_PERFH_ENABLED;
7400 phba->sli3_options &= ~LPFC_SLI4_PERFH_ENABLED;
7404 * If the port cannot support the host's requested features
7405 * then turn off the global config parameters to disable the
7406 * feature in the driver. This is not a fatal error.
7408 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
7409 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))) {
7410 phba->cfg_enable_bg = 0;
7411 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
7416 if (phba->max_vpi && phba->cfg_enable_npiv &&
7417 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
7421 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7422 "0379 Feature Mismatch Data: x%08x %08x "
7423 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
7424 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
7425 phba->cfg_enable_npiv, phba->max_vpi);
7426 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
7427 phba->cfg_enable_bg = 0;
7428 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
7429 phba->cfg_enable_npiv = 0;
7432 /* These SLI3 features are assumed in SLI4 */
7433 spin_lock_irq(&phba->hbalock);
7434 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
7435 spin_unlock_irq(&phba->hbalock);
7438 * Allocate all resources (xri,rpi,vpi,vfi) now. Subsequent
7439 * calls depends on these resources to complete port setup.
7441 rc = lpfc_sli4_alloc_resource_identifiers(phba);
7443 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7444 "2920 Failed to alloc Resource IDs "
7449 lpfc_set_host_data(phba, mboxq);
7451 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7453 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7454 "2134 Failed to set host os driver version %x",
7458 /* Read the port's service parameters. */
7459 rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
7461 phba->link_state = LPFC_HBA_ERROR;
7466 mboxq->vport = vport;
7467 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7468 mp = (struct lpfc_dmabuf *)mboxq->ctx_buf;
7469 if (rc == MBX_SUCCESS) {
7470 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
7475 * This memory was allocated by the lpfc_read_sparam routine. Release
7476 * it to the mbuf pool.
7478 lpfc_mbuf_free(phba, mp->virt, mp->phys);
7480 mboxq->ctx_buf = NULL;
7482 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7483 "0382 READ_SPARAM command failed "
7484 "status %d, mbxStatus x%x\n",
7485 rc, bf_get(lpfc_mqe_status, mqe));
7486 phba->link_state = LPFC_HBA_ERROR;
7491 lpfc_update_vport_wwn(vport);
7493 /* Update the fc_host data structures with new wwn. */
7494 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
7495 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
7497 /* Create all the SLI4 queues */
7498 rc = lpfc_sli4_queue_create(phba);
7500 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7501 "3089 Failed to allocate queues\n");
7505 /* Set up all the queues to the device */
7506 rc = lpfc_sli4_queue_setup(phba);
7508 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7509 "0381 Error %d during queue setup.\n ", rc);
7510 goto out_stop_timers;
7512 /* Initialize the driver internal SLI layer lists. */
7513 lpfc_sli4_setup(phba);
7514 lpfc_sli4_queue_init(phba);
7516 /* update host els xri-sgl sizes and mappings */
7517 rc = lpfc_sli4_els_sgl_update(phba);
7519 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7520 "1400 Failed to update xri-sgl size and "
7521 "mapping: %d\n", rc);
7522 goto out_destroy_queue;
7525 /* register the els sgl pool to the port */
7526 rc = lpfc_sli4_repost_sgl_list(phba, &phba->sli4_hba.lpfc_els_sgl_list,
7527 phba->sli4_hba.els_xri_cnt);
7528 if (unlikely(rc < 0)) {
7529 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7530 "0582 Error %d during els sgl post "
7533 goto out_destroy_queue;
7535 phba->sli4_hba.els_xri_cnt = rc;
7537 if (phba->nvmet_support) {
7538 /* update host nvmet xri-sgl sizes and mappings */
7539 rc = lpfc_sli4_nvmet_sgl_update(phba);
7541 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7542 "6308 Failed to update nvmet-sgl size "
7543 "and mapping: %d\n", rc);
7544 goto out_destroy_queue;
7547 /* register the nvmet sgl pool to the port */
7548 rc = lpfc_sli4_repost_sgl_list(
7550 &phba->sli4_hba.lpfc_nvmet_sgl_list,
7551 phba->sli4_hba.nvmet_xri_cnt);
7552 if (unlikely(rc < 0)) {
7553 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7554 "3117 Error %d during nvmet "
7557 goto out_destroy_queue;
7559 phba->sli4_hba.nvmet_xri_cnt = rc;
7561 /* We allocate an iocbq for every receive context SGL.
7562 * The additional allocation is for abort and ls handling.
7564 cnt = phba->sli4_hba.nvmet_xri_cnt +
7565 phba->sli4_hba.max_cfg_param.max_xri;
7567 /* update host common xri-sgl sizes and mappings */
7568 rc = lpfc_sli4_io_sgl_update(phba);
7570 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7571 "6082 Failed to update nvme-sgl size "
7572 "and mapping: %d\n", rc);
7573 goto out_destroy_queue;
7576 /* register the allocated common sgl pool to the port */
7577 rc = lpfc_sli4_repost_io_sgl_list(phba);
7579 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7580 "6116 Error %d during nvme sgl post "
7582 /* Some NVME buffers were moved to abort nvme list */
7583 /* A pci function reset will repost them */
7585 goto out_destroy_queue;
7587 /* Each lpfc_io_buf job structure has an iocbq element.
7588 * This cnt provides for abort, els, ct and ls requests.
7590 cnt = phba->sli4_hba.max_cfg_param.max_xri;
7593 if (!phba->sli.iocbq_lookup) {
7594 /* Initialize and populate the iocb list per host */
7595 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7596 "2821 initialize iocb list with %d entries\n",
7598 rc = lpfc_init_iocb_list(phba, cnt);
7600 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7601 "1413 Failed to init iocb list.\n");
7602 goto out_destroy_queue;
7606 if (phba->nvmet_support)
7607 lpfc_nvmet_create_targetport(phba);
7609 if (phba->nvmet_support && phba->cfg_nvmet_mrq) {
7610 /* Post initial buffers to all RQs created */
7611 for (i = 0; i < phba->cfg_nvmet_mrq; i++) {
7612 rqbp = phba->sli4_hba.nvmet_mrq_hdr[i]->rqbp;
7613 INIT_LIST_HEAD(&rqbp->rqb_buffer_list);
7614 rqbp->rqb_alloc_buffer = lpfc_sli4_nvmet_alloc;
7615 rqbp->rqb_free_buffer = lpfc_sli4_nvmet_free;
7616 rqbp->entry_count = LPFC_NVMET_RQE_DEF_COUNT;
7617 rqbp->buffer_count = 0;
7619 lpfc_post_rq_buffer(
7620 phba, phba->sli4_hba.nvmet_mrq_hdr[i],
7621 phba->sli4_hba.nvmet_mrq_data[i],
7622 phba->cfg_nvmet_mrq_post, i);
7626 /* Post the rpi header region to the device. */
7627 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
7629 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7630 "0393 Error %d during rpi post operation\n",
7633 goto out_destroy_queue;
7635 lpfc_sli4_node_prep(phba);
7637 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
7638 if ((phba->nvmet_support == 0) || (phba->cfg_nvmet_mrq == 1)) {
7640 * The FC Port needs to register FCFI (index 0)
7642 lpfc_reg_fcfi(phba, mboxq);
7643 mboxq->vport = phba->pport;
7644 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7645 if (rc != MBX_SUCCESS)
7646 goto out_unset_queue;
7648 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi,
7649 &mboxq->u.mqe.un.reg_fcfi);
7651 /* We are a NVME Target mode with MRQ > 1 */
7653 /* First register the FCFI */
7654 lpfc_reg_fcfi_mrq(phba, mboxq, 0);
7655 mboxq->vport = phba->pport;
7656 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7657 if (rc != MBX_SUCCESS)
7658 goto out_unset_queue;
7660 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_mrq_fcfi,
7661 &mboxq->u.mqe.un.reg_fcfi_mrq);
7663 /* Next register the MRQs */
7664 lpfc_reg_fcfi_mrq(phba, mboxq, 1);
7665 mboxq->vport = phba->pport;
7666 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7667 if (rc != MBX_SUCCESS)
7668 goto out_unset_queue;
7671 /* Check if the port is configured to be disabled */
7672 lpfc_sli_read_link_ste(phba);
7675 /* Don't post more new bufs if repost already recovered
7678 if (phba->nvmet_support == 0) {
7679 if (phba->sli4_hba.io_xri_cnt == 0) {
7680 len = lpfc_new_io_buf(
7681 phba, phba->sli4_hba.io_xri_max);
7684 goto out_unset_queue;
7687 if (phba->cfg_xri_rebalancing)
7688 lpfc_create_multixri_pools(phba);
7691 phba->cfg_xri_rebalancing = 0;
7694 /* Allow asynchronous mailbox command to go through */
7695 spin_lock_irq(&phba->hbalock);
7696 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7697 spin_unlock_irq(&phba->hbalock);
7699 /* Post receive buffers to the device */
7700 lpfc_sli4_rb_setup(phba);
7702 /* Reset HBA FCF states after HBA reset */
7703 phba->fcf.fcf_flag = 0;
7704 phba->fcf.current_rec.flag = 0;
7706 /* Start the ELS watchdog timer */
7707 mod_timer(&vport->els_tmofunc,
7708 jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov * 2)));
7710 /* Start heart beat timer */
7711 mod_timer(&phba->hb_tmofunc,
7712 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
7713 phba->hb_outstanding = 0;
7714 phba->last_completion_time = jiffies;
7716 /* start eq_delay heartbeat */
7717 if (phba->cfg_auto_imax)
7718 queue_delayed_work(phba->wq, &phba->eq_delay_work,
7719 msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
7721 /* Start error attention (ERATT) polling timer */
7722 mod_timer(&phba->eratt_poll,
7723 jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
7725 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
7726 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
7727 rc = pci_enable_pcie_error_reporting(phba->pcidev);
7729 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7730 "2829 This device supports "
7731 "Advanced Error Reporting (AER)\n");
7732 spin_lock_irq(&phba->hbalock);
7733 phba->hba_flag |= HBA_AER_ENABLED;
7734 spin_unlock_irq(&phba->hbalock);
7736 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7737 "2830 This device does not support "
7738 "Advanced Error Reporting (AER)\n");
7739 phba->cfg_aer_support = 0;
7745 * The port is ready, set the host's link state to LINK_DOWN
7746 * in preparation for link interrupts.
7748 spin_lock_irq(&phba->hbalock);
7749 phba->link_state = LPFC_LINK_DOWN;
7751 /* Check if physical ports are trunked */
7752 if (bf_get(lpfc_conf_trunk_port0, &phba->sli4_hba))
7753 phba->trunk_link.link0.state = LPFC_LINK_DOWN;
7754 if (bf_get(lpfc_conf_trunk_port1, &phba->sli4_hba))
7755 phba->trunk_link.link1.state = LPFC_LINK_DOWN;
7756 if (bf_get(lpfc_conf_trunk_port2, &phba->sli4_hba))
7757 phba->trunk_link.link2.state = LPFC_LINK_DOWN;
7758 if (bf_get(lpfc_conf_trunk_port3, &phba->sli4_hba))
7759 phba->trunk_link.link3.state = LPFC_LINK_DOWN;
7760 spin_unlock_irq(&phba->hbalock);
7762 /* Arm the CQs and then EQs on device */
7763 lpfc_sli4_arm_cqeq_intr(phba);
7765 /* Indicate device interrupt mode */
7766 phba->sli4_hba.intr_enable = 1;
7768 if (!(phba->hba_flag & HBA_FCOE_MODE) &&
7769 (phba->hba_flag & LINK_DISABLED)) {
7770 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
7771 "3103 Adapter Link is disabled.\n");
7772 lpfc_down_link(phba, mboxq);
7773 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7774 if (rc != MBX_SUCCESS) {
7775 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
7776 "3104 Adapter failed to issue "
7777 "DOWN_LINK mbox cmd, rc:x%x\n", rc);
7778 goto out_io_buff_free;
7780 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
7781 /* don't perform init_link on SLI4 FC port loopback test */
7782 if (!(phba->link_flag & LS_LOOPBACK_MODE)) {
7783 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
7785 goto out_io_buff_free;
7788 mempool_free(mboxq, phba->mbox_mem_pool);
7791 /* Free allocated IO Buffers */
7794 /* Unset all the queues set up in this routine when error out */
7795 lpfc_sli4_queue_unset(phba);
7797 lpfc_free_iocb_list(phba);
7798 lpfc_sli4_queue_destroy(phba);
7800 lpfc_stop_hba_timers(phba);
7802 mempool_free(mboxq, phba->mbox_mem_pool);
7807 * lpfc_mbox_timeout - Timeout call back function for mbox timer
7808 * @ptr: context object - pointer to hba structure.
7810 * This is the callback function for mailbox timer. The mailbox
7811 * timer is armed when a new mailbox command is issued and the timer
7812 * is deleted when the mailbox complete. The function is called by
7813 * the kernel timer code when a mailbox does not complete within
7814 * expected time. This function wakes up the worker thread to
7815 * process the mailbox timeout and returns. All the processing is
7816 * done by the worker thread function lpfc_mbox_timeout_handler.
7819 lpfc_mbox_timeout(struct timer_list *t)
7821 struct lpfc_hba *phba = from_timer(phba, t, sli.mbox_tmo);
7822 unsigned long iflag;
7823 uint32_t tmo_posted;
7825 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
7826 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
7828 phba->pport->work_port_events |= WORKER_MBOX_TMO;
7829 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
7832 lpfc_worker_wake_up(phba);
7837 * lpfc_sli4_mbox_completions_pending - check to see if any mailbox completions
7839 * @phba: Pointer to HBA context object.
7841 * This function checks if any mailbox completions are present on the mailbox
7845 lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba)
7849 struct lpfc_queue *mcq;
7850 struct lpfc_mcqe *mcqe;
7851 bool pending_completions = false;
7854 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
7857 /* Check for completions on mailbox completion queue */
7859 mcq = phba->sli4_hba.mbx_cq;
7860 idx = mcq->hba_index;
7861 qe_valid = mcq->qe_valid;
7862 while (bf_get_le32(lpfc_cqe_valid,
7863 (struct lpfc_cqe *)lpfc_sli4_qe(mcq, idx)) == qe_valid) {
7864 mcqe = (struct lpfc_mcqe *)(lpfc_sli4_qe(mcq, idx));
7865 if (bf_get_le32(lpfc_trailer_completed, mcqe) &&
7866 (!bf_get_le32(lpfc_trailer_async, mcqe))) {
7867 pending_completions = true;
7870 idx = (idx + 1) % mcq->entry_count;
7871 if (mcq->hba_index == idx)
7874 /* if the index wrapped around, toggle the valid bit */
7875 if (phba->sli4_hba.pc_sli4_params.cqav && !idx)
7876 qe_valid = (qe_valid) ? 0 : 1;
7878 return pending_completions;
7883 * lpfc_sli4_process_missed_mbox_completions - process mbox completions
7885 * @phba: Pointer to HBA context object.
7887 * For sli4, it is possible to miss an interrupt. As such mbox completions
7888 * maybe missed causing erroneous mailbox timeouts to occur. This function
7889 * checks to see if mbox completions are on the mailbox completion queue
7890 * and will process all the completions associated with the eq for the
7891 * mailbox completion queue.
7894 lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba)
7896 struct lpfc_sli4_hba *sli4_hba = &phba->sli4_hba;
7898 struct lpfc_queue *fpeq = NULL;
7899 struct lpfc_queue *eq;
7902 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
7905 /* Find the EQ associated with the mbox CQ */
7906 if (sli4_hba->hdwq) {
7907 for (eqidx = 0; eqidx < phba->cfg_irq_chann; eqidx++) {
7908 eq = phba->sli4_hba.hba_eq_hdl[eqidx].eq;
7909 if (eq->queue_id == sli4_hba->mbx_cq->assoc_qid) {
7918 /* Turn off interrupts from this EQ */
7920 sli4_hba->sli4_eq_clr_intr(fpeq);
7922 /* Check to see if a mbox completion is pending */
7924 mbox_pending = lpfc_sli4_mbox_completions_pending(phba);
7927 * If a mbox completion is pending, process all the events on EQ
7928 * associated with the mbox completion queue (this could include
7929 * mailbox commands, async events, els commands, receive queue data
7934 /* process and rearm the EQ */
7935 lpfc_sli4_process_eq(phba, fpeq);
7937 /* Always clear and re-arm the EQ */
7938 sli4_hba->sli4_write_eq_db(phba, fpeq, 0, LPFC_QUEUE_REARM);
7940 return mbox_pending;
7945 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
7946 * @phba: Pointer to HBA context object.
7948 * This function is called from worker thread when a mailbox command times out.
7949 * The caller is not required to hold any locks. This function will reset the
7950 * HBA and recover all the pending commands.
7953 lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
7955 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
7956 MAILBOX_t *mb = NULL;
7958 struct lpfc_sli *psli = &phba->sli;
7960 /* If the mailbox completed, process the completion and return */
7961 if (lpfc_sli4_process_missed_mbox_completions(phba))
7966 /* Check the pmbox pointer first. There is a race condition
7967 * between the mbox timeout handler getting executed in the
7968 * worklist and the mailbox actually completing. When this
7969 * race condition occurs, the mbox_active will be NULL.
7971 spin_lock_irq(&phba->hbalock);
7972 if (pmbox == NULL) {
7973 lpfc_printf_log(phba, KERN_WARNING,
7975 "0353 Active Mailbox cleared - mailbox timeout "
7977 spin_unlock_irq(&phba->hbalock);
7981 /* Mbox cmd <mbxCommand> timeout */
7982 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7983 "0310 Mailbox command x%x timeout Data: x%x x%x x%px\n",
7985 phba->pport->port_state,
7987 phba->sli.mbox_active);
7988 spin_unlock_irq(&phba->hbalock);
7990 /* Setting state unknown so lpfc_sli_abort_iocb_ring
7991 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
7992 * it to fail all outstanding SCSI IO.
7994 spin_lock_irq(&phba->pport->work_port_lock);
7995 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
7996 spin_unlock_irq(&phba->pport->work_port_lock);
7997 spin_lock_irq(&phba->hbalock);
7998 phba->link_state = LPFC_LINK_UNKNOWN;
7999 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
8000 spin_unlock_irq(&phba->hbalock);
8002 lpfc_sli_abort_fcp_rings(phba);
8004 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8005 "0345 Resetting board due to mailbox timeout\n");
8007 /* Reset the HBA device */
8008 lpfc_reset_hba(phba);
8012 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
8013 * @phba: Pointer to HBA context object.
8014 * @pmbox: Pointer to mailbox object.
8015 * @flag: Flag indicating how the mailbox need to be processed.
8017 * This function is called by discovery code and HBA management code
8018 * to submit a mailbox command to firmware with SLI-3 interface spec. This
8019 * function gets the hbalock to protect the data structures.
8020 * The mailbox command can be submitted in polling mode, in which case
8021 * this function will wait in a polling loop for the completion of the
8023 * If the mailbox is submitted in no_wait mode (not polling) the
8024 * function will submit the command and returns immediately without waiting
8025 * for the mailbox completion. The no_wait is supported only when HBA
8026 * is in SLI2/SLI3 mode - interrupts are enabled.
8027 * The SLI interface allows only one mailbox pending at a time. If the
8028 * mailbox is issued in polling mode and there is already a mailbox
8029 * pending, then the function will return an error. If the mailbox is issued
8030 * in NO_WAIT mode and there is a mailbox pending already, the function
8031 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
8032 * The sli layer owns the mailbox object until the completion of mailbox
8033 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
8034 * return codes the caller owns the mailbox command after the return of
8038 lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
8042 struct lpfc_sli *psli = &phba->sli;
8043 uint32_t status, evtctr;
8044 uint32_t ha_copy, hc_copy;
8046 unsigned long timeout;
8047 unsigned long drvr_flag = 0;
8048 uint32_t word0, ldata;
8049 void __iomem *to_slim;
8050 int processing_queue = 0;
8052 spin_lock_irqsave(&phba->hbalock, drvr_flag);
8054 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8055 /* processing mbox queue from intr_handler */
8056 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
8057 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8060 processing_queue = 1;
8061 pmbox = lpfc_mbox_get(phba);
8063 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8068 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
8069 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
8071 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8072 lpfc_printf_log(phba, KERN_ERR,
8073 LOG_MBOX | LOG_VPORT,
8074 "1806 Mbox x%x failed. No vport\n",
8075 pmbox->u.mb.mbxCommand);
8077 goto out_not_finished;
8081 /* If the PCI channel is in offline state, do not post mbox. */
8082 if (unlikely(pci_channel_offline(phba->pcidev))) {
8083 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8084 goto out_not_finished;
8087 /* If HBA has a deferred error attention, fail the iocb. */
8088 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
8089 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8090 goto out_not_finished;
8096 status = MBX_SUCCESS;
8098 if (phba->link_state == LPFC_HBA_ERROR) {
8099 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8101 /* Mbox command <mbxCommand> cannot issue */
8102 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8103 "(%d):0311 Mailbox command x%x cannot "
8104 "issue Data: x%x x%x\n",
8105 pmbox->vport ? pmbox->vport->vpi : 0,
8106 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
8107 goto out_not_finished;
8110 if (mbx->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT) {
8111 if (lpfc_readl(phba->HCregaddr, &hc_copy) ||
8112 !(hc_copy & HC_MBINT_ENA)) {
8113 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8114 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8115 "(%d):2528 Mailbox command x%x cannot "
8116 "issue Data: x%x x%x\n",
8117 pmbox->vport ? pmbox->vport->vpi : 0,
8118 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
8119 goto out_not_finished;
8123 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8124 /* Polling for a mbox command when another one is already active
8125 * is not allowed in SLI. Also, the driver must have established
8126 * SLI2 mode to queue and process multiple mbox commands.
8129 if (flag & MBX_POLL) {
8130 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8132 /* Mbox command <mbxCommand> cannot issue */
8133 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8134 "(%d):2529 Mailbox command x%x "
8135 "cannot issue Data: x%x x%x\n",
8136 pmbox->vport ? pmbox->vport->vpi : 0,
8137 pmbox->u.mb.mbxCommand,
8138 psli->sli_flag, flag);
8139 goto out_not_finished;
8142 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
8143 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8144 /* Mbox command <mbxCommand> cannot issue */
8145 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8146 "(%d):2530 Mailbox command x%x "
8147 "cannot issue Data: x%x x%x\n",
8148 pmbox->vport ? pmbox->vport->vpi : 0,
8149 pmbox->u.mb.mbxCommand,
8150 psli->sli_flag, flag);
8151 goto out_not_finished;
8154 /* Another mailbox command is still being processed, queue this
8155 * command to be processed later.
8157 lpfc_mbox_put(phba, pmbox);
8159 /* Mbox cmd issue - BUSY */
8160 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8161 "(%d):0308 Mbox cmd issue - BUSY Data: "
8162 "x%x x%x x%x x%x\n",
8163 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
8165 phba->pport ? phba->pport->port_state : 0xff,
8166 psli->sli_flag, flag);
8168 psli->slistat.mbox_busy++;
8169 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8172 lpfc_debugfs_disc_trc(pmbox->vport,
8173 LPFC_DISC_TRC_MBOX_VPORT,
8174 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
8175 (uint32_t)mbx->mbxCommand,
8176 mbx->un.varWords[0], mbx->un.varWords[1]);
8179 lpfc_debugfs_disc_trc(phba->pport,
8181 "MBOX Bsy: cmd:x%x mb:x%x x%x",
8182 (uint32_t)mbx->mbxCommand,
8183 mbx->un.varWords[0], mbx->un.varWords[1]);
8189 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
8191 /* If we are not polling, we MUST be in SLI2 mode */
8192 if (flag != MBX_POLL) {
8193 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
8194 (mbx->mbxCommand != MBX_KILL_BOARD)) {
8195 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8196 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8197 /* Mbox command <mbxCommand> cannot issue */
8198 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8199 "(%d):2531 Mailbox command x%x "
8200 "cannot issue Data: x%x x%x\n",
8201 pmbox->vport ? pmbox->vport->vpi : 0,
8202 pmbox->u.mb.mbxCommand,
8203 psli->sli_flag, flag);
8204 goto out_not_finished;
8206 /* timeout active mbox command */
8207 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
8209 mod_timer(&psli->mbox_tmo, jiffies + timeout);
8212 /* Mailbox cmd <cmd> issue */
8213 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8214 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
8216 pmbox->vport ? pmbox->vport->vpi : 0,
8218 phba->pport ? phba->pport->port_state : 0xff,
8219 psli->sli_flag, flag);
8221 if (mbx->mbxCommand != MBX_HEARTBEAT) {
8223 lpfc_debugfs_disc_trc(pmbox->vport,
8224 LPFC_DISC_TRC_MBOX_VPORT,
8225 "MBOX Send vport: cmd:x%x mb:x%x x%x",
8226 (uint32_t)mbx->mbxCommand,
8227 mbx->un.varWords[0], mbx->un.varWords[1]);
8230 lpfc_debugfs_disc_trc(phba->pport,
8232 "MBOX Send: cmd:x%x mb:x%x x%x",
8233 (uint32_t)mbx->mbxCommand,
8234 mbx->un.varWords[0], mbx->un.varWords[1]);
8238 psli->slistat.mbox_cmd++;
8239 evtctr = psli->slistat.mbox_event;
8241 /* next set own bit for the adapter and copy over command word */
8242 mbx->mbxOwner = OWN_CHIP;
8244 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
8245 /* Populate mbox extension offset word. */
8246 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) {
8247 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
8248 = (uint8_t *)phba->mbox_ext
8249 - (uint8_t *)phba->mbox;
8252 /* Copy the mailbox extension data */
8253 if (pmbox->in_ext_byte_len && pmbox->ctx_buf) {
8254 lpfc_sli_pcimem_bcopy(pmbox->ctx_buf,
8255 (uint8_t *)phba->mbox_ext,
8256 pmbox->in_ext_byte_len);
8258 /* Copy command data to host SLIM area */
8259 lpfc_sli_pcimem_bcopy(mbx, phba->mbox, MAILBOX_CMD_SIZE);
8261 /* Populate mbox extension offset word. */
8262 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len)
8263 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
8264 = MAILBOX_HBA_EXT_OFFSET;
8266 /* Copy the mailbox extension data */
8267 if (pmbox->in_ext_byte_len && pmbox->ctx_buf)
8268 lpfc_memcpy_to_slim(phba->MBslimaddr +
8269 MAILBOX_HBA_EXT_OFFSET,
8270 pmbox->ctx_buf, pmbox->in_ext_byte_len);
8272 if (mbx->mbxCommand == MBX_CONFIG_PORT)
8273 /* copy command data into host mbox for cmpl */
8274 lpfc_sli_pcimem_bcopy(mbx, phba->mbox,
8277 /* First copy mbox command data to HBA SLIM, skip past first
8279 to_slim = phba->MBslimaddr + sizeof (uint32_t);
8280 lpfc_memcpy_to_slim(to_slim, &mbx->un.varWords[0],
8281 MAILBOX_CMD_SIZE - sizeof (uint32_t));
8283 /* Next copy over first word, with mbxOwner set */
8284 ldata = *((uint32_t *)mbx);
8285 to_slim = phba->MBslimaddr;
8286 writel(ldata, to_slim);
8287 readl(to_slim); /* flush */
8289 if (mbx->mbxCommand == MBX_CONFIG_PORT)
8290 /* switch over to host mailbox */
8291 psli->sli_flag |= LPFC_SLI_ACTIVE;
8298 /* Set up reference to mailbox command */
8299 psli->mbox_active = pmbox;
8300 /* Interrupt board to do it */
8301 writel(CA_MBATT, phba->CAregaddr);
8302 readl(phba->CAregaddr); /* flush */
8303 /* Don't wait for it to finish, just return */
8307 /* Set up null reference to mailbox command */
8308 psli->mbox_active = NULL;
8309 /* Interrupt board to do it */
8310 writel(CA_MBATT, phba->CAregaddr);
8311 readl(phba->CAregaddr); /* flush */
8313 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
8314 /* First read mbox status word */
8315 word0 = *((uint32_t *)phba->mbox);
8316 word0 = le32_to_cpu(word0);
8318 /* First read mbox status word */
8319 if (lpfc_readl(phba->MBslimaddr, &word0)) {
8320 spin_unlock_irqrestore(&phba->hbalock,
8322 goto out_not_finished;
8326 /* Read the HBA Host Attention Register */
8327 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
8328 spin_unlock_irqrestore(&phba->hbalock,
8330 goto out_not_finished;
8332 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
8335 /* Wait for command to complete */
8336 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
8337 (!(ha_copy & HA_MBATT) &&
8338 (phba->link_state > LPFC_WARM_START))) {
8339 if (time_after(jiffies, timeout)) {
8340 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8341 spin_unlock_irqrestore(&phba->hbalock,
8343 goto out_not_finished;
8346 /* Check if we took a mbox interrupt while we were
8348 if (((word0 & OWN_CHIP) != OWN_CHIP)
8349 && (evtctr != psli->slistat.mbox_event))
8353 spin_unlock_irqrestore(&phba->hbalock,
8356 spin_lock_irqsave(&phba->hbalock, drvr_flag);
8359 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
8360 /* First copy command data */
8361 word0 = *((uint32_t *)phba->mbox);
8362 word0 = le32_to_cpu(word0);
8363 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
8366 /* Check real SLIM for any errors */
8367 slimword0 = readl(phba->MBslimaddr);
8368 slimmb = (MAILBOX_t *) & slimword0;
8369 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
8370 && slimmb->mbxStatus) {
8377 /* First copy command data */
8378 word0 = readl(phba->MBslimaddr);
8380 /* Read the HBA Host Attention Register */
8381 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
8382 spin_unlock_irqrestore(&phba->hbalock,
8384 goto out_not_finished;
8388 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
8389 /* copy results back to user */
8390 lpfc_sli_pcimem_bcopy(phba->mbox, mbx,
8392 /* Copy the mailbox extension data */
8393 if (pmbox->out_ext_byte_len && pmbox->ctx_buf) {
8394 lpfc_sli_pcimem_bcopy(phba->mbox_ext,
8396 pmbox->out_ext_byte_len);
8399 /* First copy command data */
8400 lpfc_memcpy_from_slim(mbx, phba->MBslimaddr,
8402 /* Copy the mailbox extension data */
8403 if (pmbox->out_ext_byte_len && pmbox->ctx_buf) {
8404 lpfc_memcpy_from_slim(
8407 MAILBOX_HBA_EXT_OFFSET,
8408 pmbox->out_ext_byte_len);
8412 writel(HA_MBATT, phba->HAregaddr);
8413 readl(phba->HAregaddr); /* flush */
8415 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8416 status = mbx->mbxStatus;
8419 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
8423 if (processing_queue) {
8424 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
8425 lpfc_mbox_cmpl_put(phba, pmbox);
8427 return MBX_NOT_FINISHED;
8431 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
8432 * @phba: Pointer to HBA context object.
8434 * The function blocks the posting of SLI4 asynchronous mailbox commands from
8435 * the driver internal pending mailbox queue. It will then try to wait out the
8436 * possible outstanding mailbox command before return.
8439 * 0 - the outstanding mailbox command completed; otherwise, the wait for
8440 * the outstanding mailbox command timed out.
8443 lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
8445 struct lpfc_sli *psli = &phba->sli;
8447 unsigned long timeout = 0;
8449 /* Mark the asynchronous mailbox command posting as blocked */
8450 spin_lock_irq(&phba->hbalock);
8451 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
8452 /* Determine how long we might wait for the active mailbox
8453 * command to be gracefully completed by firmware.
8455 if (phba->sli.mbox_active)
8456 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
8457 phba->sli.mbox_active) *
8459 spin_unlock_irq(&phba->hbalock);
8461 /* Make sure the mailbox is really active */
8463 lpfc_sli4_process_missed_mbox_completions(phba);
8465 /* Wait for the outstnading mailbox command to complete */
8466 while (phba->sli.mbox_active) {
8467 /* Check active mailbox complete status every 2ms */
8469 if (time_after(jiffies, timeout)) {
8470 /* Timeout, marked the outstanding cmd not complete */
8476 /* Can not cleanly block async mailbox command, fails it */
8478 spin_lock_irq(&phba->hbalock);
8479 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
8480 spin_unlock_irq(&phba->hbalock);
8486 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
8487 * @phba: Pointer to HBA context object.
8489 * The function unblocks and resume posting of SLI4 asynchronous mailbox
8490 * commands from the driver internal pending mailbox queue. It makes sure
8491 * that there is no outstanding mailbox command before resuming posting
8492 * asynchronous mailbox commands. If, for any reason, there is outstanding
8493 * mailbox command, it will try to wait it out before resuming asynchronous
8494 * mailbox command posting.
8497 lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
8499 struct lpfc_sli *psli = &phba->sli;
8501 spin_lock_irq(&phba->hbalock);
8502 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
8503 /* Asynchronous mailbox posting is not blocked, do nothing */
8504 spin_unlock_irq(&phba->hbalock);
8508 /* Outstanding synchronous mailbox command is guaranteed to be done,
8509 * successful or timeout, after timing-out the outstanding mailbox
8510 * command shall always be removed, so just unblock posting async
8511 * mailbox command and resume
8513 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
8514 spin_unlock_irq(&phba->hbalock);
8516 /* wake up worker thread to post asynchronlous mailbox command */
8517 lpfc_worker_wake_up(phba);
8521 * lpfc_sli4_wait_bmbx_ready - Wait for bootstrap mailbox register ready
8522 * @phba: Pointer to HBA context object.
8523 * @mboxq: Pointer to mailbox object.
8525 * The function waits for the bootstrap mailbox register ready bit from
8526 * port for twice the regular mailbox command timeout value.
8528 * 0 - no timeout on waiting for bootstrap mailbox register ready.
8529 * MBXERR_ERROR - wait for bootstrap mailbox register timed out.
8532 lpfc_sli4_wait_bmbx_ready(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8535 unsigned long timeout;
8536 struct lpfc_register bmbx_reg;
8538 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mboxq)
8542 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
8543 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
8547 if (time_after(jiffies, timeout))
8548 return MBXERR_ERROR;
8549 } while (!db_ready);
8555 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
8556 * @phba: Pointer to HBA context object.
8557 * @mboxq: Pointer to mailbox object.
8559 * The function posts a mailbox to the port. The mailbox is expected
8560 * to be comletely filled in and ready for the port to operate on it.
8561 * This routine executes a synchronous completion operation on the
8562 * mailbox by polling for its completion.
8564 * The caller must not be holding any locks when calling this routine.
8567 * MBX_SUCCESS - mailbox posted successfully
8568 * Any of the MBX error values.
8571 lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8573 int rc = MBX_SUCCESS;
8574 unsigned long iflag;
8575 uint32_t mcqe_status;
8577 struct lpfc_sli *psli = &phba->sli;
8578 struct lpfc_mqe *mb = &mboxq->u.mqe;
8579 struct lpfc_bmbx_create *mbox_rgn;
8580 struct dma_address *dma_address;
8583 * Only one mailbox can be active to the bootstrap mailbox region
8584 * at a time and there is no queueing provided.
8586 spin_lock_irqsave(&phba->hbalock, iflag);
8587 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8588 spin_unlock_irqrestore(&phba->hbalock, iflag);
8589 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8590 "(%d):2532 Mailbox command x%x (x%x/x%x) "
8591 "cannot issue Data: x%x x%x\n",
8592 mboxq->vport ? mboxq->vport->vpi : 0,
8593 mboxq->u.mb.mbxCommand,
8594 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8595 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8596 psli->sli_flag, MBX_POLL);
8597 return MBXERR_ERROR;
8599 /* The server grabs the token and owns it until release */
8600 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
8601 phba->sli.mbox_active = mboxq;
8602 spin_unlock_irqrestore(&phba->hbalock, iflag);
8604 /* wait for bootstrap mbox register for readyness */
8605 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
8609 * Initialize the bootstrap memory region to avoid stale data areas
8610 * in the mailbox post. Then copy the caller's mailbox contents to
8611 * the bmbx mailbox region.
8613 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
8614 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
8615 lpfc_sli4_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
8616 sizeof(struct lpfc_mqe));
8618 /* Post the high mailbox dma address to the port and wait for ready. */
8619 dma_address = &phba->sli4_hba.bmbx.dma_address;
8620 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
8622 /* wait for bootstrap mbox register for hi-address write done */
8623 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
8627 /* Post the low mailbox dma address to the port. */
8628 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
8630 /* wait for bootstrap mbox register for low address write done */
8631 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
8636 * Read the CQ to ensure the mailbox has completed.
8637 * If so, update the mailbox status so that the upper layers
8638 * can complete the request normally.
8640 lpfc_sli4_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
8641 sizeof(struct lpfc_mqe));
8642 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
8643 lpfc_sli4_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
8644 sizeof(struct lpfc_mcqe));
8645 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
8647 * When the CQE status indicates a failure and the mailbox status
8648 * indicates success then copy the CQE status into the mailbox status
8649 * (and prefix it with x4000).
8651 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
8652 if (bf_get(lpfc_mqe_status, mb) == MBX_SUCCESS)
8653 bf_set(lpfc_mqe_status, mb,
8654 (LPFC_MBX_ERROR_RANGE | mcqe_status));
8657 lpfc_sli4_swap_str(phba, mboxq);
8659 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8660 "(%d):0356 Mailbox cmd x%x (x%x/x%x) Status x%x "
8661 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
8662 " x%x x%x CQ: x%x x%x x%x x%x\n",
8663 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
8664 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8665 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8666 bf_get(lpfc_mqe_status, mb),
8667 mb->un.mb_words[0], mb->un.mb_words[1],
8668 mb->un.mb_words[2], mb->un.mb_words[3],
8669 mb->un.mb_words[4], mb->un.mb_words[5],
8670 mb->un.mb_words[6], mb->un.mb_words[7],
8671 mb->un.mb_words[8], mb->un.mb_words[9],
8672 mb->un.mb_words[10], mb->un.mb_words[11],
8673 mb->un.mb_words[12], mboxq->mcqe.word0,
8674 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
8675 mboxq->mcqe.trailer);
8677 /* We are holding the token, no needed for lock when release */
8678 spin_lock_irqsave(&phba->hbalock, iflag);
8679 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8680 phba->sli.mbox_active = NULL;
8681 spin_unlock_irqrestore(&phba->hbalock, iflag);
8686 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
8687 * @phba: Pointer to HBA context object.
8688 * @pmbox: Pointer to mailbox object.
8689 * @flag: Flag indicating how the mailbox need to be processed.
8691 * This function is called by discovery code and HBA management code to submit
8692 * a mailbox command to firmware with SLI-4 interface spec.
8694 * Return codes the caller owns the mailbox command after the return of the
8698 lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
8701 struct lpfc_sli *psli = &phba->sli;
8702 unsigned long iflags;
8705 /* dump from issue mailbox command if setup */
8706 lpfc_idiag_mbxacc_dump_issue_mbox(phba, &mboxq->u.mb);
8708 rc = lpfc_mbox_dev_check(phba);
8710 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8711 "(%d):2544 Mailbox command x%x (x%x/x%x) "
8712 "cannot issue Data: x%x x%x\n",
8713 mboxq->vport ? mboxq->vport->vpi : 0,
8714 mboxq->u.mb.mbxCommand,
8715 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8716 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8717 psli->sli_flag, flag);
8718 goto out_not_finished;
8721 /* Detect polling mode and jump to a handler */
8722 if (!phba->sli4_hba.intr_enable) {
8723 if (flag == MBX_POLL)
8724 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
8727 if (rc != MBX_SUCCESS)
8728 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
8729 "(%d):2541 Mailbox command x%x "
8730 "(x%x/x%x) failure: "
8731 "mqe_sta: x%x mcqe_sta: x%x/x%x "
8733 mboxq->vport ? mboxq->vport->vpi : 0,
8734 mboxq->u.mb.mbxCommand,
8735 lpfc_sli_config_mbox_subsys_get(phba,
8737 lpfc_sli_config_mbox_opcode_get(phba,
8739 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
8740 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
8741 bf_get(lpfc_mcqe_ext_status,
8743 psli->sli_flag, flag);
8745 } else if (flag == MBX_POLL) {
8746 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
8747 "(%d):2542 Try to issue mailbox command "
8748 "x%x (x%x/x%x) synchronously ahead of async "
8749 "mailbox command queue: x%x x%x\n",
8750 mboxq->vport ? mboxq->vport->vpi : 0,
8751 mboxq->u.mb.mbxCommand,
8752 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8753 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8754 psli->sli_flag, flag);
8755 /* Try to block the asynchronous mailbox posting */
8756 rc = lpfc_sli4_async_mbox_block(phba);
8758 /* Successfully blocked, now issue sync mbox cmd */
8759 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
8760 if (rc != MBX_SUCCESS)
8761 lpfc_printf_log(phba, KERN_WARNING,
8763 "(%d):2597 Sync Mailbox command "
8764 "x%x (x%x/x%x) failure: "
8765 "mqe_sta: x%x mcqe_sta: x%x/x%x "
8767 mboxq->vport ? mboxq->vport->vpi : 0,
8768 mboxq->u.mb.mbxCommand,
8769 lpfc_sli_config_mbox_subsys_get(phba,
8771 lpfc_sli_config_mbox_opcode_get(phba,
8773 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
8774 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
8775 bf_get(lpfc_mcqe_ext_status,
8777 psli->sli_flag, flag);
8778 /* Unblock the async mailbox posting afterward */
8779 lpfc_sli4_async_mbox_unblock(phba);
8784 /* Now, interrupt mode asynchrous mailbox command */
8785 rc = lpfc_mbox_cmd_check(phba, mboxq);
8787 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8788 "(%d):2543 Mailbox command x%x (x%x/x%x) "
8789 "cannot issue Data: x%x x%x\n",
8790 mboxq->vport ? mboxq->vport->vpi : 0,
8791 mboxq->u.mb.mbxCommand,
8792 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8793 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8794 psli->sli_flag, flag);
8795 goto out_not_finished;
8798 /* Put the mailbox command to the driver internal FIFO */
8799 psli->slistat.mbox_busy++;
8800 spin_lock_irqsave(&phba->hbalock, iflags);
8801 lpfc_mbox_put(phba, mboxq);
8802 spin_unlock_irqrestore(&phba->hbalock, iflags);
8803 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8804 "(%d):0354 Mbox cmd issue - Enqueue Data: "
8805 "x%x (x%x/x%x) x%x x%x x%x\n",
8806 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
8807 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
8808 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8809 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8810 phba->pport->port_state,
8811 psli->sli_flag, MBX_NOWAIT);
8812 /* Wake up worker thread to transport mailbox command from head */
8813 lpfc_worker_wake_up(phba);
8818 return MBX_NOT_FINISHED;
8822 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
8823 * @phba: Pointer to HBA context object.
8825 * This function is called by worker thread to send a mailbox command to
8826 * SLI4 HBA firmware.
8830 lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
8832 struct lpfc_sli *psli = &phba->sli;
8833 LPFC_MBOXQ_t *mboxq;
8834 int rc = MBX_SUCCESS;
8835 unsigned long iflags;
8836 struct lpfc_mqe *mqe;
8839 /* Check interrupt mode before post async mailbox command */
8840 if (unlikely(!phba->sli4_hba.intr_enable))
8841 return MBX_NOT_FINISHED;
8843 /* Check for mailbox command service token */
8844 spin_lock_irqsave(&phba->hbalock, iflags);
8845 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
8846 spin_unlock_irqrestore(&phba->hbalock, iflags);
8847 return MBX_NOT_FINISHED;
8849 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8850 spin_unlock_irqrestore(&phba->hbalock, iflags);
8851 return MBX_NOT_FINISHED;
8853 if (unlikely(phba->sli.mbox_active)) {
8854 spin_unlock_irqrestore(&phba->hbalock, iflags);
8855 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8856 "0384 There is pending active mailbox cmd\n");
8857 return MBX_NOT_FINISHED;
8859 /* Take the mailbox command service token */
8860 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
8862 /* Get the next mailbox command from head of queue */
8863 mboxq = lpfc_mbox_get(phba);
8865 /* If no more mailbox command waiting for post, we're done */
8867 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8868 spin_unlock_irqrestore(&phba->hbalock, iflags);
8871 phba->sli.mbox_active = mboxq;
8872 spin_unlock_irqrestore(&phba->hbalock, iflags);
8874 /* Check device readiness for posting mailbox command */
8875 rc = lpfc_mbox_dev_check(phba);
8877 /* Driver clean routine will clean up pending mailbox */
8878 goto out_not_finished;
8880 /* Prepare the mbox command to be posted */
8881 mqe = &mboxq->u.mqe;
8882 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
8884 /* Start timer for the mbox_tmo and log some mailbox post messages */
8885 mod_timer(&psli->mbox_tmo, (jiffies +
8886 msecs_to_jiffies(1000 * lpfc_mbox_tmo_val(phba, mboxq))));
8888 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8889 "(%d):0355 Mailbox cmd x%x (x%x/x%x) issue Data: "
8891 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
8892 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8893 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8894 phba->pport->port_state, psli->sli_flag);
8896 if (mbx_cmnd != MBX_HEARTBEAT) {
8898 lpfc_debugfs_disc_trc(mboxq->vport,
8899 LPFC_DISC_TRC_MBOX_VPORT,
8900 "MBOX Send vport: cmd:x%x mb:x%x x%x",
8901 mbx_cmnd, mqe->un.mb_words[0],
8902 mqe->un.mb_words[1]);
8904 lpfc_debugfs_disc_trc(phba->pport,
8906 "MBOX Send: cmd:x%x mb:x%x x%x",
8907 mbx_cmnd, mqe->un.mb_words[0],
8908 mqe->un.mb_words[1]);
8911 psli->slistat.mbox_cmd++;
8913 /* Post the mailbox command to the port */
8914 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
8915 if (rc != MBX_SUCCESS) {
8916 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8917 "(%d):2533 Mailbox command x%x (x%x/x%x) "
8918 "cannot issue Data: x%x x%x\n",
8919 mboxq->vport ? mboxq->vport->vpi : 0,
8920 mboxq->u.mb.mbxCommand,
8921 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8922 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8923 psli->sli_flag, MBX_NOWAIT);
8924 goto out_not_finished;
8930 spin_lock_irqsave(&phba->hbalock, iflags);
8931 if (phba->sli.mbox_active) {
8932 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
8933 __lpfc_mbox_cmpl_put(phba, mboxq);
8934 /* Release the token */
8935 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8936 phba->sli.mbox_active = NULL;
8938 spin_unlock_irqrestore(&phba->hbalock, iflags);
8940 return MBX_NOT_FINISHED;
8944 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
8945 * @phba: Pointer to HBA context object.
8946 * @pmbox: Pointer to mailbox object.
8947 * @flag: Flag indicating how the mailbox need to be processed.
8949 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
8950 * the API jump table function pointer from the lpfc_hba struct.
8952 * Return codes the caller owns the mailbox command after the return of the
8956 lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
8958 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
8962 * lpfc_mbox_api_table_setup - Set up mbox api function jump table
8963 * @phba: The hba struct for which this call is being executed.
8964 * @dev_grp: The HBA PCI-Device group number.
8966 * This routine sets up the mbox interface API function jump table in @phba
8968 * Returns: 0 - success, -ENODEV - failure.
8971 lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
8975 case LPFC_PCI_DEV_LP:
8976 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
8977 phba->lpfc_sli_handle_slow_ring_event =
8978 lpfc_sli_handle_slow_ring_event_s3;
8979 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
8980 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
8981 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
8983 case LPFC_PCI_DEV_OC:
8984 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
8985 phba->lpfc_sli_handle_slow_ring_event =
8986 lpfc_sli_handle_slow_ring_event_s4;
8987 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
8988 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
8989 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
8992 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8993 "1420 Invalid HBA PCI-device group: 0x%x\n",
9002 * __lpfc_sli_ringtx_put - Add an iocb to the txq
9003 * @phba: Pointer to HBA context object.
9004 * @pring: Pointer to driver SLI ring object.
9005 * @piocb: Pointer to address of newly added command iocb.
9007 * This function is called with hbalock held to add a command
9008 * iocb to the txq when SLI layer cannot submit the command iocb
9012 __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9013 struct lpfc_iocbq *piocb)
9015 lockdep_assert_held(&phba->hbalock);
9016 /* Insert the caller's iocb in the txq tail for later processing. */
9017 list_add_tail(&piocb->list, &pring->txq);
9021 * lpfc_sli_next_iocb - Get the next iocb in the txq
9022 * @phba: Pointer to HBA context object.
9023 * @pring: Pointer to driver SLI ring object.
9024 * @piocb: Pointer to address of newly added command iocb.
9026 * This function is called with hbalock held before a new
9027 * iocb is submitted to the firmware. This function checks
9028 * txq to flush the iocbs in txq to Firmware before
9029 * submitting new iocbs to the Firmware.
9030 * If there are iocbs in the txq which need to be submitted
9031 * to firmware, lpfc_sli_next_iocb returns the first element
9032 * of the txq after dequeuing it from txq.
9033 * If there is no iocb in the txq then the function will return
9034 * *piocb and *piocb is set to NULL. Caller needs to check
9035 * *piocb to find if there are more commands in the txq.
9037 static struct lpfc_iocbq *
9038 lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9039 struct lpfc_iocbq **piocb)
9041 struct lpfc_iocbq * nextiocb;
9043 lockdep_assert_held(&phba->hbalock);
9045 nextiocb = lpfc_sli_ringtx_get(phba, pring);
9055 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
9056 * @phba: Pointer to HBA context object.
9057 * @ring_number: SLI ring number to issue iocb on.
9058 * @piocb: Pointer to command iocb.
9059 * @flag: Flag indicating if this command can be put into txq.
9061 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
9062 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
9063 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
9064 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
9065 * this function allows only iocbs for posting buffers. This function finds
9066 * next available slot in the command ring and posts the command to the
9067 * available slot and writes the port attention register to request HBA start
9068 * processing new iocb. If there is no slot available in the ring and
9069 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
9070 * the function returns IOCB_BUSY.
9072 * This function is called with hbalock held. The function will return success
9073 * after it successfully submit the iocb to firmware or after adding to the
9077 __lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
9078 struct lpfc_iocbq *piocb, uint32_t flag)
9080 struct lpfc_iocbq *nextiocb;
9082 struct lpfc_sli_ring *pring = &phba->sli.sli3_ring[ring_number];
9084 lockdep_assert_held(&phba->hbalock);
9086 if (piocb->iocb_cmpl && (!piocb->vport) &&
9087 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
9088 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
9089 lpfc_printf_log(phba, KERN_ERR,
9090 LOG_SLI | LOG_VPORT,
9091 "1807 IOCB x%x failed. No vport\n",
9092 piocb->iocb.ulpCommand);
9098 /* If the PCI channel is in offline state, do not post iocbs. */
9099 if (unlikely(pci_channel_offline(phba->pcidev)))
9102 /* If HBA has a deferred error attention, fail the iocb. */
9103 if (unlikely(phba->hba_flag & DEFER_ERATT))
9107 * We should never get an IOCB if we are in a < LINK_DOWN state
9109 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
9113 * Check to see if we are blocking IOCB processing because of a
9114 * outstanding event.
9116 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
9119 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
9121 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
9122 * can be issued if the link is not up.
9124 switch (piocb->iocb.ulpCommand) {
9125 case CMD_GEN_REQUEST64_CR:
9126 case CMD_GEN_REQUEST64_CX:
9127 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
9128 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
9129 FC_RCTL_DD_UNSOL_CMD) ||
9130 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
9131 MENLO_TRANSPORT_TYPE))
9135 case CMD_QUE_RING_BUF_CN:
9136 case CMD_QUE_RING_BUF64_CN:
9138 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
9139 * completion, iocb_cmpl MUST be 0.
9141 if (piocb->iocb_cmpl)
9142 piocb->iocb_cmpl = NULL;
9144 case CMD_CREATE_XRI_CR:
9145 case CMD_CLOSE_XRI_CN:
9146 case CMD_CLOSE_XRI_CX:
9153 * For FCP commands, we must be in a state where we can process link
9156 } else if (unlikely(pring->ringno == LPFC_FCP_RING &&
9157 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
9161 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
9162 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
9163 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
9166 lpfc_sli_update_ring(phba, pring);
9168 lpfc_sli_update_full_ring(phba, pring);
9171 return IOCB_SUCCESS;
9176 pring->stats.iocb_cmd_delay++;
9180 if (!(flag & SLI_IOCB_RET_IOCB)) {
9181 __lpfc_sli_ringtx_put(phba, pring, piocb);
9182 return IOCB_SUCCESS;
9189 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
9190 * @phba: Pointer to HBA context object.
9191 * @piocb: Pointer to command iocb.
9192 * @sglq: Pointer to the scatter gather queue object.
9194 * This routine converts the bpl or bde that is in the IOCB
9195 * to a sgl list for the sli4 hardware. The physical address
9196 * of the bpl/bde is converted back to a virtual address.
9197 * If the IOCB contains a BPL then the list of BDE's is
9198 * converted to sli4_sge's. If the IOCB contains a single
9199 * BDE then it is converted to a single sli_sge.
9200 * The IOCB is still in cpu endianess so the contents of
9201 * the bpl can be used without byte swapping.
9203 * Returns valid XRI = Success, NO_XRI = Failure.
9206 lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
9207 struct lpfc_sglq *sglq)
9209 uint16_t xritag = NO_XRI;
9210 struct ulp_bde64 *bpl = NULL;
9211 struct ulp_bde64 bde;
9212 struct sli4_sge *sgl = NULL;
9213 struct lpfc_dmabuf *dmabuf;
9217 uint32_t offset = 0; /* accumulated offset in the sg request list */
9218 int inbound = 0; /* number of sg reply entries inbound from firmware */
9220 if (!piocbq || !sglq)
9223 sgl = (struct sli4_sge *)sglq->sgl;
9224 icmd = &piocbq->iocb;
9225 if (icmd->ulpCommand == CMD_XMIT_BLS_RSP64_CX)
9226 return sglq->sli4_xritag;
9227 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
9228 numBdes = icmd->un.genreq64.bdl.bdeSize /
9229 sizeof(struct ulp_bde64);
9230 /* The addrHigh and addrLow fields within the IOCB
9231 * have not been byteswapped yet so there is no
9232 * need to swap them back.
9234 if (piocbq->context3)
9235 dmabuf = (struct lpfc_dmabuf *)piocbq->context3;
9239 bpl = (struct ulp_bde64 *)dmabuf->virt;
9243 for (i = 0; i < numBdes; i++) {
9244 /* Should already be byte swapped. */
9245 sgl->addr_hi = bpl->addrHigh;
9246 sgl->addr_lo = bpl->addrLow;
9248 sgl->word2 = le32_to_cpu(sgl->word2);
9249 if ((i+1) == numBdes)
9250 bf_set(lpfc_sli4_sge_last, sgl, 1);
9252 bf_set(lpfc_sli4_sge_last, sgl, 0);
9253 /* swap the size field back to the cpu so we
9254 * can assign it to the sgl.
9256 bde.tus.w = le32_to_cpu(bpl->tus.w);
9257 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
9258 /* The offsets in the sgl need to be accumulated
9259 * separately for the request and reply lists.
9260 * The request is always first, the reply follows.
9262 if (piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) {
9263 /* add up the reply sg entries */
9264 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
9266 /* first inbound? reset the offset */
9269 bf_set(lpfc_sli4_sge_offset, sgl, offset);
9270 bf_set(lpfc_sli4_sge_type, sgl,
9271 LPFC_SGE_TYPE_DATA);
9272 offset += bde.tus.f.bdeSize;
9274 sgl->word2 = cpu_to_le32(sgl->word2);
9278 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
9279 /* The addrHigh and addrLow fields of the BDE have not
9280 * been byteswapped yet so they need to be swapped
9281 * before putting them in the sgl.
9284 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
9286 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
9287 sgl->word2 = le32_to_cpu(sgl->word2);
9288 bf_set(lpfc_sli4_sge_last, sgl, 1);
9289 sgl->word2 = cpu_to_le32(sgl->word2);
9291 cpu_to_le32(icmd->un.genreq64.bdl.bdeSize);
9293 return sglq->sli4_xritag;
9297 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
9298 * @phba: Pointer to HBA context object.
9299 * @piocb: Pointer to command iocb.
9300 * @wqe: Pointer to the work queue entry.
9302 * This routine converts the iocb command to its Work Queue Entry
9303 * equivalent. The wqe pointer should not have any fields set when
9304 * this routine is called because it will memcpy over them.
9305 * This routine does not set the CQ_ID or the WQEC bits in the
9308 * Returns: 0 = Success, IOCB_ERROR = Failure.
9311 lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
9312 union lpfc_wqe128 *wqe)
9314 uint32_t xmit_len = 0, total_len = 0;
9318 uint8_t command_type = ELS_COMMAND_NON_FIP;
9321 uint16_t abrt_iotag;
9322 struct lpfc_iocbq *abrtiocbq;
9323 struct ulp_bde64 *bpl = NULL;
9324 uint32_t els_id = LPFC_ELS_ID_DEFAULT;
9326 struct ulp_bde64 bde;
9327 struct lpfc_nodelist *ndlp;
9331 fip = phba->hba_flag & HBA_FIP_SUPPORT;
9332 /* The fcp commands will set command type */
9333 if (iocbq->iocb_flag & LPFC_IO_FCP)
9334 command_type = FCP_COMMAND;
9335 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
9336 command_type = ELS_COMMAND_FIP;
9338 command_type = ELS_COMMAND_NON_FIP;
9340 if (phba->fcp_embed_io)
9341 memset(wqe, 0, sizeof(union lpfc_wqe128));
9342 /* Some of the fields are in the right position already */
9343 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
9344 /* The ct field has moved so reset */
9345 wqe->generic.wqe_com.word7 = 0;
9346 wqe->generic.wqe_com.word10 = 0;
9348 abort_tag = (uint32_t) iocbq->iotag;
9349 xritag = iocbq->sli4_xritag;
9350 /* words0-2 bpl convert bde */
9351 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
9352 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
9353 sizeof(struct ulp_bde64);
9354 bpl = (struct ulp_bde64 *)
9355 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
9359 /* Should already be byte swapped. */
9360 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
9361 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
9362 /* swap the size field back to the cpu so we
9363 * can assign it to the sgl.
9365 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
9366 xmit_len = wqe->generic.bde.tus.f.bdeSize;
9368 for (i = 0; i < numBdes; i++) {
9369 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
9370 total_len += bde.tus.f.bdeSize;
9373 xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
9375 iocbq->iocb.ulpIoTag = iocbq->iotag;
9376 cmnd = iocbq->iocb.ulpCommand;
9378 switch (iocbq->iocb.ulpCommand) {
9379 case CMD_ELS_REQUEST64_CR:
9380 if (iocbq->iocb_flag & LPFC_IO_LIBDFC)
9381 ndlp = iocbq->context_un.ndlp;
9383 ndlp = (struct lpfc_nodelist *)iocbq->context1;
9384 if (!iocbq->iocb.ulpLe) {
9385 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9386 "2007 Only Limited Edition cmd Format"
9387 " supported 0x%x\n",
9388 iocbq->iocb.ulpCommand);
9392 wqe->els_req.payload_len = xmit_len;
9393 /* Els_reguest64 has a TMO */
9394 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
9395 iocbq->iocb.ulpTimeout);
9396 /* Need a VF for word 4 set the vf bit*/
9397 bf_set(els_req64_vf, &wqe->els_req, 0);
9398 /* And a VFID for word 12 */
9399 bf_set(els_req64_vfid, &wqe->els_req, 0);
9400 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
9401 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
9402 iocbq->iocb.ulpContext);
9403 bf_set(wqe_ct, &wqe->els_req.wqe_com, ct);
9404 bf_set(wqe_pu, &wqe->els_req.wqe_com, 0);
9405 /* CCP CCPE PV PRI in word10 were set in the memcpy */
9406 if (command_type == ELS_COMMAND_FIP)
9407 els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
9408 >> LPFC_FIP_ELS_ID_SHIFT);
9409 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
9410 iocbq->context2)->virt);
9411 if_type = bf_get(lpfc_sli_intf_if_type,
9412 &phba->sli4_hba.sli_intf);
9413 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
9414 if (pcmd && (*pcmd == ELS_CMD_FLOGI ||
9415 *pcmd == ELS_CMD_SCR ||
9416 *pcmd == ELS_CMD_RSCN_XMT ||
9417 *pcmd == ELS_CMD_FDISC ||
9418 *pcmd == ELS_CMD_LOGO ||
9419 *pcmd == ELS_CMD_PLOGI)) {
9420 bf_set(els_req64_sp, &wqe->els_req, 1);
9421 bf_set(els_req64_sid, &wqe->els_req,
9422 iocbq->vport->fc_myDID);
9423 if ((*pcmd == ELS_CMD_FLOGI) &&
9424 !(phba->fc_topology ==
9425 LPFC_TOPOLOGY_LOOP))
9426 bf_set(els_req64_sid, &wqe->els_req, 0);
9427 bf_set(wqe_ct, &wqe->els_req.wqe_com, 1);
9428 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
9429 phba->vpi_ids[iocbq->vport->vpi]);
9430 } else if (pcmd && iocbq->context1) {
9431 bf_set(wqe_ct, &wqe->els_req.wqe_com, 0);
9432 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
9433 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
9436 bf_set(wqe_temp_rpi, &wqe->els_req.wqe_com,
9437 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
9438 bf_set(wqe_els_id, &wqe->els_req.wqe_com, els_id);
9439 bf_set(wqe_dbde, &wqe->els_req.wqe_com, 1);
9440 bf_set(wqe_iod, &wqe->els_req.wqe_com, LPFC_WQE_IOD_READ);
9441 bf_set(wqe_qosd, &wqe->els_req.wqe_com, 1);
9442 bf_set(wqe_lenloc, &wqe->els_req.wqe_com, LPFC_WQE_LENLOC_NONE);
9443 bf_set(wqe_ebde_cnt, &wqe->els_req.wqe_com, 0);
9444 wqe->els_req.max_response_payload_len = total_len - xmit_len;
9446 case CMD_XMIT_SEQUENCE64_CX:
9447 bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com,
9448 iocbq->iocb.un.ulpWord[3]);
9449 bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com,
9450 iocbq->iocb.unsli3.rcvsli3.ox_id);
9451 /* The entire sequence is transmitted for this IOCB */
9452 xmit_len = total_len;
9453 cmnd = CMD_XMIT_SEQUENCE64_CR;
9454 if (phba->link_flag & LS_LOOPBACK_MODE)
9455 bf_set(wqe_xo, &wqe->xmit_sequence.wge_ctl, 1);
9457 case CMD_XMIT_SEQUENCE64_CR:
9458 /* word3 iocb=io_tag32 wqe=reserved */
9459 wqe->xmit_sequence.rsvd3 = 0;
9460 /* word4 relative_offset memcpy */
9461 /* word5 r_ctl/df_ctl memcpy */
9462 bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0);
9463 bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1);
9464 bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com,
9465 LPFC_WQE_IOD_WRITE);
9466 bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com,
9467 LPFC_WQE_LENLOC_WORD12);
9468 bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0);
9469 wqe->xmit_sequence.xmit_len = xmit_len;
9470 command_type = OTHER_COMMAND;
9472 case CMD_XMIT_BCAST64_CN:
9473 /* word3 iocb=iotag32 wqe=seq_payload_len */
9474 wqe->xmit_bcast64.seq_payload_len = xmit_len;
9475 /* word4 iocb=rsvd wqe=rsvd */
9476 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
9477 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
9478 bf_set(wqe_ct, &wqe->xmit_bcast64.wqe_com,
9479 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
9480 bf_set(wqe_dbde, &wqe->xmit_bcast64.wqe_com, 1);
9481 bf_set(wqe_iod, &wqe->xmit_bcast64.wqe_com, LPFC_WQE_IOD_WRITE);
9482 bf_set(wqe_lenloc, &wqe->xmit_bcast64.wqe_com,
9483 LPFC_WQE_LENLOC_WORD3);
9484 bf_set(wqe_ebde_cnt, &wqe->xmit_bcast64.wqe_com, 0);
9486 case CMD_FCP_IWRITE64_CR:
9487 command_type = FCP_COMMAND_DATA_OUT;
9488 /* word3 iocb=iotag wqe=payload_offset_len */
9489 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
9490 bf_set(payload_offset_len, &wqe->fcp_iwrite,
9491 xmit_len + sizeof(struct fcp_rsp));
9492 bf_set(cmd_buff_len, &wqe->fcp_iwrite,
9494 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
9495 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
9496 bf_set(wqe_erp, &wqe->fcp_iwrite.wqe_com,
9497 iocbq->iocb.ulpFCP2Rcvy);
9498 bf_set(wqe_lnk, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpXS);
9499 /* Always open the exchange */
9500 bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE);
9501 bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com,
9502 LPFC_WQE_LENLOC_WORD4);
9503 bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpPU);
9504 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 1);
9505 if (iocbq->iocb_flag & LPFC_IO_OAS) {
9506 bf_set(wqe_oas, &wqe->fcp_iwrite.wqe_com, 1);
9507 bf_set(wqe_ccpe, &wqe->fcp_iwrite.wqe_com, 1);
9508 if (iocbq->priority) {
9509 bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
9510 (iocbq->priority << 1));
9512 bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
9513 (phba->cfg_XLanePriority << 1));
9516 /* Note, word 10 is already initialized to 0 */
9518 /* Don't set PBDE for Perf hints, just lpfc_enable_pbde */
9519 if (phba->cfg_enable_pbde)
9520 bf_set(wqe_pbde, &wqe->fcp_iwrite.wqe_com, 1);
9522 bf_set(wqe_pbde, &wqe->fcp_iwrite.wqe_com, 0);
9524 if (phba->fcp_embed_io) {
9525 struct lpfc_io_buf *lpfc_cmd;
9526 struct sli4_sge *sgl;
9527 struct fcp_cmnd *fcp_cmnd;
9530 /* 128 byte wqe support here */
9532 lpfc_cmd = iocbq->context1;
9533 sgl = (struct sli4_sge *)lpfc_cmd->dma_sgl;
9534 fcp_cmnd = lpfc_cmd->fcp_cmnd;
9536 /* Word 0-2 - FCP_CMND */
9537 wqe->generic.bde.tus.f.bdeFlags =
9538 BUFF_TYPE_BDE_IMMED;
9539 wqe->generic.bde.tus.f.bdeSize = sgl->sge_len;
9540 wqe->generic.bde.addrHigh = 0;
9541 wqe->generic.bde.addrLow = 88; /* Word 22 */
9543 bf_set(wqe_wqes, &wqe->fcp_iwrite.wqe_com, 1);
9544 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 0);
9546 /* Word 22-29 FCP CMND Payload */
9547 ptr = &wqe->words[22];
9548 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
9551 case CMD_FCP_IREAD64_CR:
9552 /* word3 iocb=iotag wqe=payload_offset_len */
9553 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
9554 bf_set(payload_offset_len, &wqe->fcp_iread,
9555 xmit_len + sizeof(struct fcp_rsp));
9556 bf_set(cmd_buff_len, &wqe->fcp_iread,
9558 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
9559 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
9560 bf_set(wqe_erp, &wqe->fcp_iread.wqe_com,
9561 iocbq->iocb.ulpFCP2Rcvy);
9562 bf_set(wqe_lnk, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpXS);
9563 /* Always open the exchange */
9564 bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ);
9565 bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com,
9566 LPFC_WQE_LENLOC_WORD4);
9567 bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpPU);
9568 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 1);
9569 if (iocbq->iocb_flag & LPFC_IO_OAS) {
9570 bf_set(wqe_oas, &wqe->fcp_iread.wqe_com, 1);
9571 bf_set(wqe_ccpe, &wqe->fcp_iread.wqe_com, 1);
9572 if (iocbq->priority) {
9573 bf_set(wqe_ccp, &wqe->fcp_iread.wqe_com,
9574 (iocbq->priority << 1));
9576 bf_set(wqe_ccp, &wqe->fcp_iread.wqe_com,
9577 (phba->cfg_XLanePriority << 1));
9580 /* Note, word 10 is already initialized to 0 */
9582 /* Don't set PBDE for Perf hints, just lpfc_enable_pbde */
9583 if (phba->cfg_enable_pbde)
9584 bf_set(wqe_pbde, &wqe->fcp_iread.wqe_com, 1);
9586 bf_set(wqe_pbde, &wqe->fcp_iread.wqe_com, 0);
9588 if (phba->fcp_embed_io) {
9589 struct lpfc_io_buf *lpfc_cmd;
9590 struct sli4_sge *sgl;
9591 struct fcp_cmnd *fcp_cmnd;
9594 /* 128 byte wqe support here */
9596 lpfc_cmd = iocbq->context1;
9597 sgl = (struct sli4_sge *)lpfc_cmd->dma_sgl;
9598 fcp_cmnd = lpfc_cmd->fcp_cmnd;
9600 /* Word 0-2 - FCP_CMND */
9601 wqe->generic.bde.tus.f.bdeFlags =
9602 BUFF_TYPE_BDE_IMMED;
9603 wqe->generic.bde.tus.f.bdeSize = sgl->sge_len;
9604 wqe->generic.bde.addrHigh = 0;
9605 wqe->generic.bde.addrLow = 88; /* Word 22 */
9607 bf_set(wqe_wqes, &wqe->fcp_iread.wqe_com, 1);
9608 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 0);
9610 /* Word 22-29 FCP CMND Payload */
9611 ptr = &wqe->words[22];
9612 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
9615 case CMD_FCP_ICMND64_CR:
9616 /* word3 iocb=iotag wqe=payload_offset_len */
9617 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
9618 bf_set(payload_offset_len, &wqe->fcp_icmd,
9619 xmit_len + sizeof(struct fcp_rsp));
9620 bf_set(cmd_buff_len, &wqe->fcp_icmd,
9622 /* word3 iocb=IO_TAG wqe=reserved */
9623 bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0);
9624 /* Always open the exchange */
9625 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 1);
9626 bf_set(wqe_iod, &wqe->fcp_icmd.wqe_com, LPFC_WQE_IOD_WRITE);
9627 bf_set(wqe_qosd, &wqe->fcp_icmd.wqe_com, 1);
9628 bf_set(wqe_lenloc, &wqe->fcp_icmd.wqe_com,
9629 LPFC_WQE_LENLOC_NONE);
9630 bf_set(wqe_erp, &wqe->fcp_icmd.wqe_com,
9631 iocbq->iocb.ulpFCP2Rcvy);
9632 if (iocbq->iocb_flag & LPFC_IO_OAS) {
9633 bf_set(wqe_oas, &wqe->fcp_icmd.wqe_com, 1);
9634 bf_set(wqe_ccpe, &wqe->fcp_icmd.wqe_com, 1);
9635 if (iocbq->priority) {
9636 bf_set(wqe_ccp, &wqe->fcp_icmd.wqe_com,
9637 (iocbq->priority << 1));
9639 bf_set(wqe_ccp, &wqe->fcp_icmd.wqe_com,
9640 (phba->cfg_XLanePriority << 1));
9643 /* Note, word 10 is already initialized to 0 */
9645 if (phba->fcp_embed_io) {
9646 struct lpfc_io_buf *lpfc_cmd;
9647 struct sli4_sge *sgl;
9648 struct fcp_cmnd *fcp_cmnd;
9651 /* 128 byte wqe support here */
9653 lpfc_cmd = iocbq->context1;
9654 sgl = (struct sli4_sge *)lpfc_cmd->dma_sgl;
9655 fcp_cmnd = lpfc_cmd->fcp_cmnd;
9657 /* Word 0-2 - FCP_CMND */
9658 wqe->generic.bde.tus.f.bdeFlags =
9659 BUFF_TYPE_BDE_IMMED;
9660 wqe->generic.bde.tus.f.bdeSize = sgl->sge_len;
9661 wqe->generic.bde.addrHigh = 0;
9662 wqe->generic.bde.addrLow = 88; /* Word 22 */
9664 bf_set(wqe_wqes, &wqe->fcp_icmd.wqe_com, 1);
9665 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 0);
9667 /* Word 22-29 FCP CMND Payload */
9668 ptr = &wqe->words[22];
9669 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
9672 case CMD_GEN_REQUEST64_CR:
9673 /* For this command calculate the xmit length of the
9677 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
9678 sizeof(struct ulp_bde64);
9679 for (i = 0; i < numBdes; i++) {
9680 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
9681 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
9683 xmit_len += bde.tus.f.bdeSize;
9685 /* word3 iocb=IO_TAG wqe=request_payload_len */
9686 wqe->gen_req.request_payload_len = xmit_len;
9687 /* word4 iocb=parameter wqe=relative_offset memcpy */
9688 /* word5 [rctl, type, df_ctl, la] copied in memcpy */
9689 /* word6 context tag copied in memcpy */
9690 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
9691 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
9692 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9693 "2015 Invalid CT %x command 0x%x\n",
9694 ct, iocbq->iocb.ulpCommand);
9697 bf_set(wqe_ct, &wqe->gen_req.wqe_com, 0);
9698 bf_set(wqe_tmo, &wqe->gen_req.wqe_com, iocbq->iocb.ulpTimeout);
9699 bf_set(wqe_pu, &wqe->gen_req.wqe_com, iocbq->iocb.ulpPU);
9700 bf_set(wqe_dbde, &wqe->gen_req.wqe_com, 1);
9701 bf_set(wqe_iod, &wqe->gen_req.wqe_com, LPFC_WQE_IOD_READ);
9702 bf_set(wqe_qosd, &wqe->gen_req.wqe_com, 1);
9703 bf_set(wqe_lenloc, &wqe->gen_req.wqe_com, LPFC_WQE_LENLOC_NONE);
9704 bf_set(wqe_ebde_cnt, &wqe->gen_req.wqe_com, 0);
9705 wqe->gen_req.max_response_payload_len = total_len - xmit_len;
9706 command_type = OTHER_COMMAND;
9708 case CMD_XMIT_ELS_RSP64_CX:
9709 ndlp = (struct lpfc_nodelist *)iocbq->context1;
9710 /* words0-2 BDE memcpy */
9711 /* word3 iocb=iotag32 wqe=response_payload_len */
9712 wqe->xmit_els_rsp.response_payload_len = xmit_len;
9714 wqe->xmit_els_rsp.word4 = 0;
9715 /* word5 iocb=rsvd wge=did */
9716 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
9717 iocbq->iocb.un.xseq64.xmit_els_remoteID);
9719 if_type = bf_get(lpfc_sli_intf_if_type,
9720 &phba->sli4_hba.sli_intf);
9721 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
9722 if (iocbq->vport->fc_flag & FC_PT2PT) {
9723 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
9724 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
9725 iocbq->vport->fc_myDID);
9726 if (iocbq->vport->fc_myDID == Fabric_DID) {
9728 &wqe->xmit_els_rsp.wqe_dest, 0);
9732 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com,
9733 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
9734 bf_set(wqe_pu, &wqe->xmit_els_rsp.wqe_com, iocbq->iocb.ulpPU);
9735 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
9736 iocbq->iocb.unsli3.rcvsli3.ox_id);
9737 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
9738 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
9739 phba->vpi_ids[iocbq->vport->vpi]);
9740 bf_set(wqe_dbde, &wqe->xmit_els_rsp.wqe_com, 1);
9741 bf_set(wqe_iod, &wqe->xmit_els_rsp.wqe_com, LPFC_WQE_IOD_WRITE);
9742 bf_set(wqe_qosd, &wqe->xmit_els_rsp.wqe_com, 1);
9743 bf_set(wqe_lenloc, &wqe->xmit_els_rsp.wqe_com,
9744 LPFC_WQE_LENLOC_WORD3);
9745 bf_set(wqe_ebde_cnt, &wqe->xmit_els_rsp.wqe_com, 0);
9746 bf_set(wqe_rsp_temp_rpi, &wqe->xmit_els_rsp,
9747 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
9748 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
9749 iocbq->context2)->virt);
9750 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
9751 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
9752 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
9753 iocbq->vport->fc_myDID);
9754 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com, 1);
9755 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
9756 phba->vpi_ids[phba->pport->vpi]);
9758 command_type = OTHER_COMMAND;
9760 case CMD_CLOSE_XRI_CN:
9761 case CMD_ABORT_XRI_CN:
9762 case CMD_ABORT_XRI_CX:
9763 /* words 0-2 memcpy should be 0 rserved */
9764 /* port will send abts */
9765 abrt_iotag = iocbq->iocb.un.acxri.abortContextTag;
9766 if (abrt_iotag != 0 && abrt_iotag <= phba->sli.last_iotag) {
9767 abrtiocbq = phba->sli.iocbq_lookup[abrt_iotag];
9768 fip = abrtiocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK;
9772 if ((iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN) || fip)
9774 * The link is down, or the command was ELS_FIP
9775 * so the fw does not need to send abts
9778 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
9780 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
9781 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
9782 /* word5 iocb=CONTEXT_TAG|IO_TAG wqe=reserved */
9783 wqe->abort_cmd.rsrvd5 = 0;
9784 bf_set(wqe_ct, &wqe->abort_cmd.wqe_com,
9785 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
9786 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
9788 * The abort handler will send us CMD_ABORT_XRI_CN or
9789 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
9791 bf_set(wqe_cmnd, &wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
9792 bf_set(wqe_qosd, &wqe->abort_cmd.wqe_com, 1);
9793 bf_set(wqe_lenloc, &wqe->abort_cmd.wqe_com,
9794 LPFC_WQE_LENLOC_NONE);
9795 cmnd = CMD_ABORT_XRI_CX;
9796 command_type = OTHER_COMMAND;
9799 case CMD_XMIT_BLS_RSP64_CX:
9800 ndlp = (struct lpfc_nodelist *)iocbq->context1;
9801 /* As BLS ABTS RSP WQE is very different from other WQEs,
9802 * we re-construct this WQE here based on information in
9803 * iocbq from scratch.
9805 memset(wqe, 0, sizeof(*wqe));
9806 /* OX_ID is invariable to who sent ABTS to CT exchange */
9807 bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
9808 bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_rsp));
9809 if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_rsp) ==
9810 LPFC_ABTS_UNSOL_INT) {
9811 /* ABTS sent by initiator to CT exchange, the
9812 * RX_ID field will be filled with the newly
9813 * allocated responder XRI.
9815 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
9816 iocbq->sli4_xritag);
9818 /* ABTS sent by responder to CT exchange, the
9819 * RX_ID field will be filled with the responder
9822 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
9823 bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_rsp));
9825 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
9826 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
9829 bf_set(wqe_els_did, &wqe->xmit_bls_rsp.wqe_dest,
9831 bf_set(xmit_bls_rsp64_temprpi, &wqe->xmit_bls_rsp,
9832 iocbq->iocb.ulpContext);
9833 bf_set(wqe_ct, &wqe->xmit_bls_rsp.wqe_com, 1);
9834 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
9835 phba->vpi_ids[phba->pport->vpi]);
9836 bf_set(wqe_qosd, &wqe->xmit_bls_rsp.wqe_com, 1);
9837 bf_set(wqe_lenloc, &wqe->xmit_bls_rsp.wqe_com,
9838 LPFC_WQE_LENLOC_NONE);
9839 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
9840 command_type = OTHER_COMMAND;
9841 if (iocbq->iocb.un.xseq64.w5.hcsw.Rctl == FC_RCTL_BA_RJT) {
9842 bf_set(xmit_bls_rsp64_rjt_vspec, &wqe->xmit_bls_rsp,
9843 bf_get(lpfc_vndr_code, &iocbq->iocb.un.bls_rsp));
9844 bf_set(xmit_bls_rsp64_rjt_expc, &wqe->xmit_bls_rsp,
9845 bf_get(lpfc_rsn_expln, &iocbq->iocb.un.bls_rsp));
9846 bf_set(xmit_bls_rsp64_rjt_rsnc, &wqe->xmit_bls_rsp,
9847 bf_get(lpfc_rsn_code, &iocbq->iocb.un.bls_rsp));
9851 case CMD_SEND_FRAME:
9852 bf_set(wqe_cmnd, &wqe->generic.wqe_com, CMD_SEND_FRAME);
9853 bf_set(wqe_sof, &wqe->generic.wqe_com, 0x2E); /* SOF byte */
9854 bf_set(wqe_eof, &wqe->generic.wqe_com, 0x41); /* EOF byte */
9855 bf_set(wqe_lenloc, &wqe->generic.wqe_com, 1);
9856 bf_set(wqe_xbl, &wqe->generic.wqe_com, 1);
9857 bf_set(wqe_dbde, &wqe->generic.wqe_com, 1);
9858 bf_set(wqe_xc, &wqe->generic.wqe_com, 1);
9859 bf_set(wqe_cmd_type, &wqe->generic.wqe_com, 0xA);
9860 bf_set(wqe_cqid, &wqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
9861 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
9862 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
9864 case CMD_XRI_ABORTED_CX:
9865 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
9866 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
9867 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
9868 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
9869 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
9871 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9872 "2014 Invalid command 0x%x\n",
9873 iocbq->iocb.ulpCommand);
9878 if (iocbq->iocb_flag & LPFC_IO_DIF_PASS)
9879 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_PASSTHRU);
9880 else if (iocbq->iocb_flag & LPFC_IO_DIF_STRIP)
9881 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_STRIP);
9882 else if (iocbq->iocb_flag & LPFC_IO_DIF_INSERT)
9883 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_INSERT);
9884 iocbq->iocb_flag &= ~(LPFC_IO_DIF_PASS | LPFC_IO_DIF_STRIP |
9885 LPFC_IO_DIF_INSERT);
9886 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
9887 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
9888 wqe->generic.wqe_com.abort_tag = abort_tag;
9889 bf_set(wqe_cmd_type, &wqe->generic.wqe_com, command_type);
9890 bf_set(wqe_cmnd, &wqe->generic.wqe_com, cmnd);
9891 bf_set(wqe_class, &wqe->generic.wqe_com, iocbq->iocb.ulpClass);
9892 bf_set(wqe_cqid, &wqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
9897 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
9898 * @phba: Pointer to HBA context object.
9899 * @ring_number: SLI ring number to issue iocb on.
9900 * @piocb: Pointer to command iocb.
9901 * @flag: Flag indicating if this command can be put into txq.
9903 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
9904 * an iocb command to an HBA with SLI-4 interface spec.
9906 * This function is called with hbalock held. The function will return success
9907 * after it successfully submit the iocb to firmware or after adding to the
9911 __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
9912 struct lpfc_iocbq *piocb, uint32_t flag)
9914 struct lpfc_sglq *sglq;
9915 union lpfc_wqe128 wqe;
9916 struct lpfc_queue *wq;
9917 struct lpfc_sli_ring *pring;
9920 if ((piocb->iocb_flag & LPFC_IO_FCP) ||
9921 (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
9922 wq = phba->sli4_hba.hdwq[piocb->hba_wqidx].io_wq;
9924 wq = phba->sli4_hba.els_wq;
9927 /* Get corresponding ring */
9931 * The WQE can be either 64 or 128 bytes,
9934 lockdep_assert_held(&pring->ring_lock);
9936 if (piocb->sli4_xritag == NO_XRI) {
9937 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
9938 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
9941 if (!list_empty(&pring->txq)) {
9942 if (!(flag & SLI_IOCB_RET_IOCB)) {
9943 __lpfc_sli_ringtx_put(phba,
9945 return IOCB_SUCCESS;
9950 sglq = __lpfc_sli_get_els_sglq(phba, piocb);
9952 if (!(flag & SLI_IOCB_RET_IOCB)) {
9953 __lpfc_sli_ringtx_put(phba,
9956 return IOCB_SUCCESS;
9962 } else if (piocb->iocb_flag & LPFC_IO_FCP)
9963 /* These IO's already have an XRI and a mapped sgl. */
9967 * This is a continuation of a commandi,(CX) so this
9968 * sglq is on the active list
9970 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_lxritag);
9976 piocb->sli4_lxritag = sglq->sli4_lxritag;
9977 piocb->sli4_xritag = sglq->sli4_xritag;
9978 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocb, sglq))
9982 if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe))
9985 if (lpfc_sli4_wq_put(wq, &wqe))
9987 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
9993 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
9995 * This routine wraps the actual lockless version for issusing IOCB function
9996 * pointer from the lpfc_hba struct.
9999 * IOCB_ERROR - Error
10000 * IOCB_SUCCESS - Success
10004 __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
10005 struct lpfc_iocbq *piocb, uint32_t flag)
10007 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
10011 * lpfc_sli_api_table_setup - Set up sli api function jump table
10012 * @phba: The hba struct for which this call is being executed.
10013 * @dev_grp: The HBA PCI-Device group number.
10015 * This routine sets up the SLI interface API function jump table in @phba
10017 * Returns: 0 - success, -ENODEV - failure.
10020 lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
10024 case LPFC_PCI_DEV_LP:
10025 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
10026 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
10028 case LPFC_PCI_DEV_OC:
10029 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
10030 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
10033 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10034 "1419 Invalid HBA PCI-device group: 0x%x\n",
10039 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
10044 * lpfc_sli4_calc_ring - Calculates which ring to use
10045 * @phba: Pointer to HBA context object.
10046 * @piocb: Pointer to command iocb.
10048 * For SLI4 only, FCP IO can deferred to one fo many WQs, based on
10049 * hba_wqidx, thus we need to calculate the corresponding ring.
10050 * Since ABORTS must go on the same WQ of the command they are
10051 * aborting, we use command's hba_wqidx.
10053 struct lpfc_sli_ring *
10054 lpfc_sli4_calc_ring(struct lpfc_hba *phba, struct lpfc_iocbq *piocb)
10056 struct lpfc_io_buf *lpfc_cmd;
10058 if (piocb->iocb_flag & (LPFC_IO_FCP | LPFC_USE_FCPWQIDX)) {
10059 if (unlikely(!phba->sli4_hba.hdwq))
10062 * for abort iocb hba_wqidx should already
10063 * be setup based on what work queue we used.
10065 if (!(piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
10066 lpfc_cmd = (struct lpfc_io_buf *)piocb->context1;
10067 piocb->hba_wqidx = lpfc_cmd->hdwq_no;
10069 return phba->sli4_hba.hdwq[piocb->hba_wqidx].io_wq->pring;
10071 if (unlikely(!phba->sli4_hba.els_wq))
10073 piocb->hba_wqidx = 0;
10074 return phba->sli4_hba.els_wq->pring;
10079 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
10080 * @phba: Pointer to HBA context object.
10081 * @pring: Pointer to driver SLI ring object.
10082 * @piocb: Pointer to command iocb.
10083 * @flag: Flag indicating if this command can be put into txq.
10085 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
10086 * function. This function gets the hbalock and calls
10087 * __lpfc_sli_issue_iocb function and will return the error returned
10088 * by __lpfc_sli_issue_iocb function. This wrapper is used by
10089 * functions which do not hold hbalock.
10092 lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
10093 struct lpfc_iocbq *piocb, uint32_t flag)
10095 struct lpfc_sli_ring *pring;
10096 unsigned long iflags;
10099 if (phba->sli_rev == LPFC_SLI_REV4) {
10100 pring = lpfc_sli4_calc_ring(phba, piocb);
10101 if (unlikely(pring == NULL))
10104 spin_lock_irqsave(&pring->ring_lock, iflags);
10105 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
10106 spin_unlock_irqrestore(&pring->ring_lock, iflags);
10108 /* For now, SLI2/3 will still use hbalock */
10109 spin_lock_irqsave(&phba->hbalock, iflags);
10110 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
10111 spin_unlock_irqrestore(&phba->hbalock, iflags);
10117 * lpfc_extra_ring_setup - Extra ring setup function
10118 * @phba: Pointer to HBA context object.
10120 * This function is called while driver attaches with the
10121 * HBA to setup the extra ring. The extra ring is used
10122 * only when driver needs to support target mode functionality
10123 * or IP over FC functionalities.
10125 * This function is called with no lock held. SLI3 only.
10128 lpfc_extra_ring_setup( struct lpfc_hba *phba)
10130 struct lpfc_sli *psli;
10131 struct lpfc_sli_ring *pring;
10135 /* Adjust cmd/rsp ring iocb entries more evenly */
10137 /* Take some away from the FCP ring */
10138 pring = &psli->sli3_ring[LPFC_FCP_RING];
10139 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
10140 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
10141 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
10142 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
10144 /* and give them to the extra ring */
10145 pring = &psli->sli3_ring[LPFC_EXTRA_RING];
10147 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
10148 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
10149 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
10150 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
10152 /* Setup default profile for this ring */
10153 pring->iotag_max = 4096;
10154 pring->num_mask = 1;
10155 pring->prt[0].profile = 0; /* Mask 0 */
10156 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
10157 pring->prt[0].type = phba->cfg_multi_ring_type;
10158 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
10162 /* lpfc_sli_abts_err_handler - handle a failed ABTS request from an SLI3 port.
10163 * @phba: Pointer to HBA context object.
10164 * @iocbq: Pointer to iocb object.
10166 * The async_event handler calls this routine when it receives
10167 * an ASYNC_STATUS_CN event from the port. The port generates
10168 * this event when an Abort Sequence request to an rport fails
10169 * twice in succession. The abort could be originated by the
10170 * driver or by the port. The ABTS could have been for an ELS
10171 * or FCP IO. The port only generates this event when an ABTS
10172 * fails to complete after one retry.
10175 lpfc_sli_abts_err_handler(struct lpfc_hba *phba,
10176 struct lpfc_iocbq *iocbq)
10178 struct lpfc_nodelist *ndlp = NULL;
10179 uint16_t rpi = 0, vpi = 0;
10180 struct lpfc_vport *vport = NULL;
10182 /* The rpi in the ulpContext is vport-sensitive. */
10183 vpi = iocbq->iocb.un.asyncstat.sub_ctxt_tag;
10184 rpi = iocbq->iocb.ulpContext;
10186 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
10187 "3092 Port generated ABTS async event "
10188 "on vpi %d rpi %d status 0x%x\n",
10189 vpi, rpi, iocbq->iocb.ulpStatus);
10191 vport = lpfc_find_vport_by_vpid(phba, vpi);
10194 ndlp = lpfc_findnode_rpi(vport, rpi);
10195 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
10198 if (iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT)
10199 lpfc_sli_abts_recover_port(vport, ndlp);
10203 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10204 "3095 Event Context not found, no "
10205 "action on vpi %d rpi %d status 0x%x, reason 0x%x\n",
10206 iocbq->iocb.ulpContext, iocbq->iocb.ulpStatus,
10210 /* lpfc_sli4_abts_err_handler - handle a failed ABTS request from an SLI4 port.
10211 * @phba: pointer to HBA context object.
10212 * @ndlp: nodelist pointer for the impacted rport.
10213 * @axri: pointer to the wcqe containing the failed exchange.
10215 * The driver calls this routine when it receives an ABORT_XRI_FCP CQE from the
10216 * port. The port generates this event when an abort exchange request to an
10217 * rport fails twice in succession with no reply. The abort could be originated
10218 * by the driver or by the port. The ABTS could have been for an ELS or FCP IO.
10221 lpfc_sli4_abts_err_handler(struct lpfc_hba *phba,
10222 struct lpfc_nodelist *ndlp,
10223 struct sli4_wcqe_xri_aborted *axri)
10225 struct lpfc_vport *vport;
10226 uint32_t ext_status = 0;
10228 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
10229 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10230 "3115 Node Context not found, driver "
10231 "ignoring abts err event\n");
10235 vport = ndlp->vport;
10236 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
10237 "3116 Port generated FCP XRI ABORT event on "
10238 "vpi %d rpi %d xri x%x status 0x%x parameter x%x\n",
10239 ndlp->vport->vpi, phba->sli4_hba.rpi_ids[ndlp->nlp_rpi],
10240 bf_get(lpfc_wcqe_xa_xri, axri),
10241 bf_get(lpfc_wcqe_xa_status, axri),
10245 * Catch the ABTS protocol failure case. Older OCe FW releases returned
10246 * LOCAL_REJECT and 0 for a failed ABTS exchange and later OCe and
10247 * LPe FW releases returned LOCAL_REJECT and SEQUENCE_TIMEOUT.
10249 ext_status = axri->parameter & IOERR_PARAM_MASK;
10250 if ((bf_get(lpfc_wcqe_xa_status, axri) == IOSTAT_LOCAL_REJECT) &&
10251 ((ext_status == IOERR_SEQUENCE_TIMEOUT) || (ext_status == 0)))
10252 lpfc_sli_abts_recover_port(vport, ndlp);
10256 * lpfc_sli_async_event_handler - ASYNC iocb handler function
10257 * @phba: Pointer to HBA context object.
10258 * @pring: Pointer to driver SLI ring object.
10259 * @iocbq: Pointer to iocb object.
10261 * This function is called by the slow ring event handler
10262 * function when there is an ASYNC event iocb in the ring.
10263 * This function is called with no lock held.
10264 * Currently this function handles only temperature related
10265 * ASYNC events. The function decodes the temperature sensor
10266 * event message and posts events for the management applications.
10269 lpfc_sli_async_event_handler(struct lpfc_hba * phba,
10270 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
10274 struct temp_event temp_event_data;
10275 struct Scsi_Host *shost;
10278 icmd = &iocbq->iocb;
10279 evt_code = icmd->un.asyncstat.evt_code;
10281 switch (evt_code) {
10282 case ASYNC_TEMP_WARN:
10283 case ASYNC_TEMP_SAFE:
10284 temp_event_data.data = (uint32_t) icmd->ulpContext;
10285 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
10286 if (evt_code == ASYNC_TEMP_WARN) {
10287 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
10288 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
10289 "0347 Adapter is very hot, please take "
10290 "corrective action. temperature : %d Celsius\n",
10291 (uint32_t) icmd->ulpContext);
10293 temp_event_data.event_code = LPFC_NORMAL_TEMP;
10294 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
10295 "0340 Adapter temperature is OK now. "
10296 "temperature : %d Celsius\n",
10297 (uint32_t) icmd->ulpContext);
10300 /* Send temperature change event to applications */
10301 shost = lpfc_shost_from_vport(phba->pport);
10302 fc_host_post_vendor_event(shost, fc_get_event_number(),
10303 sizeof(temp_event_data), (char *) &temp_event_data,
10304 LPFC_NL_VENDOR_ID);
10306 case ASYNC_STATUS_CN:
10307 lpfc_sli_abts_err_handler(phba, iocbq);
10310 iocb_w = (uint32_t *) icmd;
10311 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10312 "0346 Ring %d handler: unexpected ASYNC_STATUS"
10314 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
10315 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
10316 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
10317 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
10318 pring->ringno, icmd->un.asyncstat.evt_code,
10319 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
10320 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
10321 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
10322 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
10330 * lpfc_sli4_setup - SLI ring setup function
10331 * @phba: Pointer to HBA context object.
10333 * lpfc_sli_setup sets up rings of the SLI interface with
10334 * number of iocbs per ring and iotags. This function is
10335 * called while driver attach to the HBA and before the
10336 * interrupts are enabled. So there is no need for locking.
10338 * This function always returns 0.
10341 lpfc_sli4_setup(struct lpfc_hba *phba)
10343 struct lpfc_sli_ring *pring;
10345 pring = phba->sli4_hba.els_wq->pring;
10346 pring->num_mask = LPFC_MAX_RING_MASK;
10347 pring->prt[0].profile = 0; /* Mask 0 */
10348 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
10349 pring->prt[0].type = FC_TYPE_ELS;
10350 pring->prt[0].lpfc_sli_rcv_unsol_event =
10351 lpfc_els_unsol_event;
10352 pring->prt[1].profile = 0; /* Mask 1 */
10353 pring->prt[1].rctl = FC_RCTL_ELS_REP;
10354 pring->prt[1].type = FC_TYPE_ELS;
10355 pring->prt[1].lpfc_sli_rcv_unsol_event =
10356 lpfc_els_unsol_event;
10357 pring->prt[2].profile = 0; /* Mask 2 */
10358 /* NameServer Inquiry */
10359 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
10361 pring->prt[2].type = FC_TYPE_CT;
10362 pring->prt[2].lpfc_sli_rcv_unsol_event =
10363 lpfc_ct_unsol_event;
10364 pring->prt[3].profile = 0; /* Mask 3 */
10365 /* NameServer response */
10366 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
10368 pring->prt[3].type = FC_TYPE_CT;
10369 pring->prt[3].lpfc_sli_rcv_unsol_event =
10370 lpfc_ct_unsol_event;
10375 * lpfc_sli_setup - SLI ring setup function
10376 * @phba: Pointer to HBA context object.
10378 * lpfc_sli_setup sets up rings of the SLI interface with
10379 * number of iocbs per ring and iotags. This function is
10380 * called while driver attach to the HBA and before the
10381 * interrupts are enabled. So there is no need for locking.
10383 * This function always returns 0. SLI3 only.
10386 lpfc_sli_setup(struct lpfc_hba *phba)
10388 int i, totiocbsize = 0;
10389 struct lpfc_sli *psli = &phba->sli;
10390 struct lpfc_sli_ring *pring;
10392 psli->num_rings = MAX_SLI3_CONFIGURED_RINGS;
10393 psli->sli_flag = 0;
10395 psli->iocbq_lookup = NULL;
10396 psli->iocbq_lookup_len = 0;
10397 psli->last_iotag = 0;
10399 for (i = 0; i < psli->num_rings; i++) {
10400 pring = &psli->sli3_ring[i];
10402 case LPFC_FCP_RING: /* ring 0 - FCP */
10403 /* numCiocb and numRiocb are used in config_port */
10404 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
10405 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
10406 pring->sli.sli3.numCiocb +=
10407 SLI2_IOCB_CMD_R1XTRA_ENTRIES;
10408 pring->sli.sli3.numRiocb +=
10409 SLI2_IOCB_RSP_R1XTRA_ENTRIES;
10410 pring->sli.sli3.numCiocb +=
10411 SLI2_IOCB_CMD_R3XTRA_ENTRIES;
10412 pring->sli.sli3.numRiocb +=
10413 SLI2_IOCB_RSP_R3XTRA_ENTRIES;
10414 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
10415 SLI3_IOCB_CMD_SIZE :
10416 SLI2_IOCB_CMD_SIZE;
10417 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
10418 SLI3_IOCB_RSP_SIZE :
10419 SLI2_IOCB_RSP_SIZE;
10420 pring->iotag_ctr = 0;
10422 (phba->cfg_hba_queue_depth * 2);
10423 pring->fast_iotag = pring->iotag_max;
10424 pring->num_mask = 0;
10426 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
10427 /* numCiocb and numRiocb are used in config_port */
10428 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
10429 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
10430 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
10431 SLI3_IOCB_CMD_SIZE :
10432 SLI2_IOCB_CMD_SIZE;
10433 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
10434 SLI3_IOCB_RSP_SIZE :
10435 SLI2_IOCB_RSP_SIZE;
10436 pring->iotag_max = phba->cfg_hba_queue_depth;
10437 pring->num_mask = 0;
10439 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
10440 /* numCiocb and numRiocb are used in config_port */
10441 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
10442 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
10443 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
10444 SLI3_IOCB_CMD_SIZE :
10445 SLI2_IOCB_CMD_SIZE;
10446 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
10447 SLI3_IOCB_RSP_SIZE :
10448 SLI2_IOCB_RSP_SIZE;
10449 pring->fast_iotag = 0;
10450 pring->iotag_ctr = 0;
10451 pring->iotag_max = 4096;
10452 pring->lpfc_sli_rcv_async_status =
10453 lpfc_sli_async_event_handler;
10454 pring->num_mask = LPFC_MAX_RING_MASK;
10455 pring->prt[0].profile = 0; /* Mask 0 */
10456 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
10457 pring->prt[0].type = FC_TYPE_ELS;
10458 pring->prt[0].lpfc_sli_rcv_unsol_event =
10459 lpfc_els_unsol_event;
10460 pring->prt[1].profile = 0; /* Mask 1 */
10461 pring->prt[1].rctl = FC_RCTL_ELS_REP;
10462 pring->prt[1].type = FC_TYPE_ELS;
10463 pring->prt[1].lpfc_sli_rcv_unsol_event =
10464 lpfc_els_unsol_event;
10465 pring->prt[2].profile = 0; /* Mask 2 */
10466 /* NameServer Inquiry */
10467 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
10469 pring->prt[2].type = FC_TYPE_CT;
10470 pring->prt[2].lpfc_sli_rcv_unsol_event =
10471 lpfc_ct_unsol_event;
10472 pring->prt[3].profile = 0; /* Mask 3 */
10473 /* NameServer response */
10474 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
10476 pring->prt[3].type = FC_TYPE_CT;
10477 pring->prt[3].lpfc_sli_rcv_unsol_event =
10478 lpfc_ct_unsol_event;
10481 totiocbsize += (pring->sli.sli3.numCiocb *
10482 pring->sli.sli3.sizeCiocb) +
10483 (pring->sli.sli3.numRiocb * pring->sli.sli3.sizeRiocb);
10485 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
10486 /* Too many cmd / rsp ring entries in SLI2 SLIM */
10487 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
10488 "SLI2 SLIM Data: x%x x%lx\n",
10489 phba->brd_no, totiocbsize,
10490 (unsigned long) MAX_SLIM_IOCB_SIZE);
10492 if (phba->cfg_multi_ring_support == 2)
10493 lpfc_extra_ring_setup(phba);
10499 * lpfc_sli4_queue_init - Queue initialization function
10500 * @phba: Pointer to HBA context object.
10502 * lpfc_sli4_queue_init sets up mailbox queues and iocb queues for each
10503 * ring. This function also initializes ring indices of each ring.
10504 * This function is called during the initialization of the SLI
10505 * interface of an HBA.
10506 * This function is called with no lock held and always returns
10510 lpfc_sli4_queue_init(struct lpfc_hba *phba)
10512 struct lpfc_sli *psli;
10513 struct lpfc_sli_ring *pring;
10517 spin_lock_irq(&phba->hbalock);
10518 INIT_LIST_HEAD(&psli->mboxq);
10519 INIT_LIST_HEAD(&psli->mboxq_cmpl);
10520 /* Initialize list headers for txq and txcmplq as double linked lists */
10521 for (i = 0; i < phba->cfg_hdw_queue; i++) {
10522 pring = phba->sli4_hba.hdwq[i].io_wq->pring;
10524 pring->ringno = LPFC_FCP_RING;
10525 pring->txcmplq_cnt = 0;
10526 INIT_LIST_HEAD(&pring->txq);
10527 INIT_LIST_HEAD(&pring->txcmplq);
10528 INIT_LIST_HEAD(&pring->iocb_continueq);
10529 spin_lock_init(&pring->ring_lock);
10531 pring = phba->sli4_hba.els_wq->pring;
10533 pring->ringno = LPFC_ELS_RING;
10534 pring->txcmplq_cnt = 0;
10535 INIT_LIST_HEAD(&pring->txq);
10536 INIT_LIST_HEAD(&pring->txcmplq);
10537 INIT_LIST_HEAD(&pring->iocb_continueq);
10538 spin_lock_init(&pring->ring_lock);
10540 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10541 pring = phba->sli4_hba.nvmels_wq->pring;
10543 pring->ringno = LPFC_ELS_RING;
10544 pring->txcmplq_cnt = 0;
10545 INIT_LIST_HEAD(&pring->txq);
10546 INIT_LIST_HEAD(&pring->txcmplq);
10547 INIT_LIST_HEAD(&pring->iocb_continueq);
10548 spin_lock_init(&pring->ring_lock);
10551 spin_unlock_irq(&phba->hbalock);
10555 * lpfc_sli_queue_init - Queue initialization function
10556 * @phba: Pointer to HBA context object.
10558 * lpfc_sli_queue_init sets up mailbox queues and iocb queues for each
10559 * ring. This function also initializes ring indices of each ring.
10560 * This function is called during the initialization of the SLI
10561 * interface of an HBA.
10562 * This function is called with no lock held and always returns
10566 lpfc_sli_queue_init(struct lpfc_hba *phba)
10568 struct lpfc_sli *psli;
10569 struct lpfc_sli_ring *pring;
10573 spin_lock_irq(&phba->hbalock);
10574 INIT_LIST_HEAD(&psli->mboxq);
10575 INIT_LIST_HEAD(&psli->mboxq_cmpl);
10576 /* Initialize list headers for txq and txcmplq as double linked lists */
10577 for (i = 0; i < psli->num_rings; i++) {
10578 pring = &psli->sli3_ring[i];
10580 pring->sli.sli3.next_cmdidx = 0;
10581 pring->sli.sli3.local_getidx = 0;
10582 pring->sli.sli3.cmdidx = 0;
10583 INIT_LIST_HEAD(&pring->iocb_continueq);
10584 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
10585 INIT_LIST_HEAD(&pring->postbufq);
10587 INIT_LIST_HEAD(&pring->txq);
10588 INIT_LIST_HEAD(&pring->txcmplq);
10589 spin_lock_init(&pring->ring_lock);
10591 spin_unlock_irq(&phba->hbalock);
10595 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
10596 * @phba: Pointer to HBA context object.
10598 * This routine flushes the mailbox command subsystem. It will unconditionally
10599 * flush all the mailbox commands in the three possible stages in the mailbox
10600 * command sub-system: pending mailbox command queue; the outstanding mailbox
10601 * command; and completed mailbox command queue. It is caller's responsibility
10602 * to make sure that the driver is in the proper state to flush the mailbox
10603 * command sub-system. Namely, the posting of mailbox commands into the
10604 * pending mailbox command queue from the various clients must be stopped;
10605 * either the HBA is in a state that it will never works on the outstanding
10606 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
10607 * mailbox command has been completed.
10610 lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
10612 LIST_HEAD(completions);
10613 struct lpfc_sli *psli = &phba->sli;
10615 unsigned long iflag;
10617 /* Disable softirqs, including timers from obtaining phba->hbalock */
10618 local_bh_disable();
10620 /* Flush all the mailbox commands in the mbox system */
10621 spin_lock_irqsave(&phba->hbalock, iflag);
10623 /* The pending mailbox command queue */
10624 list_splice_init(&phba->sli.mboxq, &completions);
10625 /* The outstanding active mailbox command */
10626 if (psli->mbox_active) {
10627 list_add_tail(&psli->mbox_active->list, &completions);
10628 psli->mbox_active = NULL;
10629 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
10631 /* The completed mailbox command queue */
10632 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
10633 spin_unlock_irqrestore(&phba->hbalock, iflag);
10635 /* Enable softirqs again, done with phba->hbalock */
10638 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
10639 while (!list_empty(&completions)) {
10640 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
10641 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
10642 if (pmb->mbox_cmpl)
10643 pmb->mbox_cmpl(phba, pmb);
10648 * lpfc_sli_host_down - Vport cleanup function
10649 * @vport: Pointer to virtual port object.
10651 * lpfc_sli_host_down is called to clean up the resources
10652 * associated with a vport before destroying virtual
10653 * port data structures.
10654 * This function does following operations:
10655 * - Free discovery resources associated with this virtual
10657 * - Free iocbs associated with this virtual port in
10659 * - Send abort for all iocb commands associated with this
10660 * vport in txcmplq.
10662 * This function is called with no lock held and always returns 1.
10665 lpfc_sli_host_down(struct lpfc_vport *vport)
10667 LIST_HEAD(completions);
10668 struct lpfc_hba *phba = vport->phba;
10669 struct lpfc_sli *psli = &phba->sli;
10670 struct lpfc_queue *qp = NULL;
10671 struct lpfc_sli_ring *pring;
10672 struct lpfc_iocbq *iocb, *next_iocb;
10674 unsigned long flags = 0;
10675 uint16_t prev_pring_flag;
10677 lpfc_cleanup_discovery_resources(vport);
10679 spin_lock_irqsave(&phba->hbalock, flags);
10682 * Error everything on the txq since these iocbs
10683 * have not been given to the FW yet.
10684 * Also issue ABTS for everything on the txcmplq
10686 if (phba->sli_rev != LPFC_SLI_REV4) {
10687 for (i = 0; i < psli->num_rings; i++) {
10688 pring = &psli->sli3_ring[i];
10689 prev_pring_flag = pring->flag;
10690 /* Only slow rings */
10691 if (pring->ringno == LPFC_ELS_RING) {
10692 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10693 /* Set the lpfc data pending flag */
10694 set_bit(LPFC_DATA_READY, &phba->data_flags);
10696 list_for_each_entry_safe(iocb, next_iocb,
10697 &pring->txq, list) {
10698 if (iocb->vport != vport)
10700 list_move_tail(&iocb->list, &completions);
10702 list_for_each_entry_safe(iocb, next_iocb,
10703 &pring->txcmplq, list) {
10704 if (iocb->vport != vport)
10706 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
10708 pring->flag = prev_pring_flag;
10711 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
10715 if (pring == phba->sli4_hba.els_wq->pring) {
10716 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10717 /* Set the lpfc data pending flag */
10718 set_bit(LPFC_DATA_READY, &phba->data_flags);
10720 prev_pring_flag = pring->flag;
10721 spin_lock(&pring->ring_lock);
10722 list_for_each_entry_safe(iocb, next_iocb,
10723 &pring->txq, list) {
10724 if (iocb->vport != vport)
10726 list_move_tail(&iocb->list, &completions);
10728 spin_unlock(&pring->ring_lock);
10729 list_for_each_entry_safe(iocb, next_iocb,
10730 &pring->txcmplq, list) {
10731 if (iocb->vport != vport)
10733 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
10735 pring->flag = prev_pring_flag;
10738 spin_unlock_irqrestore(&phba->hbalock, flags);
10740 /* Cancel all the IOCBs from the completions list */
10741 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
10747 * lpfc_sli_hba_down - Resource cleanup function for the HBA
10748 * @phba: Pointer to HBA context object.
10750 * This function cleans up all iocb, buffers, mailbox commands
10751 * while shutting down the HBA. This function is called with no
10752 * lock held and always returns 1.
10753 * This function does the following to cleanup driver resources:
10754 * - Free discovery resources for each virtual port
10755 * - Cleanup any pending fabric iocbs
10756 * - Iterate through the iocb txq and free each entry
10758 * - Free up any buffer posted to the HBA
10759 * - Free mailbox commands in the mailbox queue.
10762 lpfc_sli_hba_down(struct lpfc_hba *phba)
10764 LIST_HEAD(completions);
10765 struct lpfc_sli *psli = &phba->sli;
10766 struct lpfc_queue *qp = NULL;
10767 struct lpfc_sli_ring *pring;
10768 struct lpfc_dmabuf *buf_ptr;
10769 unsigned long flags = 0;
10772 /* Shutdown the mailbox command sub-system */
10773 lpfc_sli_mbox_sys_shutdown(phba, LPFC_MBX_WAIT);
10775 lpfc_hba_down_prep(phba);
10777 /* Disable softirqs, including timers from obtaining phba->hbalock */
10778 local_bh_disable();
10780 lpfc_fabric_abort_hba(phba);
10782 spin_lock_irqsave(&phba->hbalock, flags);
10785 * Error everything on the txq since these iocbs
10786 * have not been given to the FW yet.
10788 if (phba->sli_rev != LPFC_SLI_REV4) {
10789 for (i = 0; i < psli->num_rings; i++) {
10790 pring = &psli->sli3_ring[i];
10791 /* Only slow rings */
10792 if (pring->ringno == LPFC_ELS_RING) {
10793 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10794 /* Set the lpfc data pending flag */
10795 set_bit(LPFC_DATA_READY, &phba->data_flags);
10797 list_splice_init(&pring->txq, &completions);
10800 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
10804 spin_lock(&pring->ring_lock);
10805 list_splice_init(&pring->txq, &completions);
10806 spin_unlock(&pring->ring_lock);
10807 if (pring == phba->sli4_hba.els_wq->pring) {
10808 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10809 /* Set the lpfc data pending flag */
10810 set_bit(LPFC_DATA_READY, &phba->data_flags);
10814 spin_unlock_irqrestore(&phba->hbalock, flags);
10816 /* Cancel all the IOCBs from the completions list */
10817 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
10820 spin_lock_irqsave(&phba->hbalock, flags);
10821 list_splice_init(&phba->elsbuf, &completions);
10822 phba->elsbuf_cnt = 0;
10823 phba->elsbuf_prev_cnt = 0;
10824 spin_unlock_irqrestore(&phba->hbalock, flags);
10826 while (!list_empty(&completions)) {
10827 list_remove_head(&completions, buf_ptr,
10828 struct lpfc_dmabuf, list);
10829 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
10833 /* Enable softirqs again, done with phba->hbalock */
10836 /* Return any active mbox cmds */
10837 del_timer_sync(&psli->mbox_tmo);
10839 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
10840 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
10841 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
10847 * lpfc_sli_pcimem_bcopy - SLI memory copy function
10848 * @srcp: Source memory pointer.
10849 * @destp: Destination memory pointer.
10850 * @cnt: Number of words required to be copied.
10852 * This function is used for copying data between driver memory
10853 * and the SLI memory. This function also changes the endianness
10854 * of each word if native endianness is different from SLI
10855 * endianness. This function can be called with or without
10859 lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
10861 uint32_t *src = srcp;
10862 uint32_t *dest = destp;
10866 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
10868 ldata = le32_to_cpu(ldata);
10877 * lpfc_sli_bemem_bcopy - SLI memory copy function
10878 * @srcp: Source memory pointer.
10879 * @destp: Destination memory pointer.
10880 * @cnt: Number of words required to be copied.
10882 * This function is used for copying data between a data structure
10883 * with big endian representation to local endianness.
10884 * This function can be called with or without lock.
10887 lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
10889 uint32_t *src = srcp;
10890 uint32_t *dest = destp;
10894 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
10896 ldata = be32_to_cpu(ldata);
10904 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
10905 * @phba: Pointer to HBA context object.
10906 * @pring: Pointer to driver SLI ring object.
10907 * @mp: Pointer to driver buffer object.
10909 * This function is called with no lock held.
10910 * It always return zero after adding the buffer to the postbufq
10914 lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10915 struct lpfc_dmabuf *mp)
10917 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
10919 spin_lock_irq(&phba->hbalock);
10920 list_add_tail(&mp->list, &pring->postbufq);
10921 pring->postbufq_cnt++;
10922 spin_unlock_irq(&phba->hbalock);
10927 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
10928 * @phba: Pointer to HBA context object.
10930 * When HBQ is enabled, buffers are searched based on tags. This function
10931 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
10932 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
10933 * does not conflict with tags of buffer posted for unsolicited events.
10934 * The function returns the allocated tag. The function is called with
10938 lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
10940 spin_lock_irq(&phba->hbalock);
10941 phba->buffer_tag_count++;
10943 * Always set the QUE_BUFTAG_BIT to distiguish between
10944 * a tag assigned by HBQ.
10946 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
10947 spin_unlock_irq(&phba->hbalock);
10948 return phba->buffer_tag_count;
10952 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
10953 * @phba: Pointer to HBA context object.
10954 * @pring: Pointer to driver SLI ring object.
10955 * @tag: Buffer tag.
10957 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
10958 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
10959 * iocb is posted to the response ring with the tag of the buffer.
10960 * This function searches the pring->postbufq list using the tag
10961 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
10962 * iocb. If the buffer is found then lpfc_dmabuf object of the
10963 * buffer is returned to the caller else NULL is returned.
10964 * This function is called with no lock held.
10966 struct lpfc_dmabuf *
10967 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10970 struct lpfc_dmabuf *mp, *next_mp;
10971 struct list_head *slp = &pring->postbufq;
10973 /* Search postbufq, from the beginning, looking for a match on tag */
10974 spin_lock_irq(&phba->hbalock);
10975 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
10976 if (mp->buffer_tag == tag) {
10977 list_del_init(&mp->list);
10978 pring->postbufq_cnt--;
10979 spin_unlock_irq(&phba->hbalock);
10984 spin_unlock_irq(&phba->hbalock);
10985 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10986 "0402 Cannot find virtual addr for buffer tag on "
10987 "ring %d Data x%lx x%px x%px x%x\n",
10988 pring->ringno, (unsigned long) tag,
10989 slp->next, slp->prev, pring->postbufq_cnt);
10995 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
10996 * @phba: Pointer to HBA context object.
10997 * @pring: Pointer to driver SLI ring object.
10998 * @phys: DMA address of the buffer.
11000 * This function searches the buffer list using the dma_address
11001 * of unsolicited event to find the driver's lpfc_dmabuf object
11002 * corresponding to the dma_address. The function returns the
11003 * lpfc_dmabuf object if a buffer is found else it returns NULL.
11004 * This function is called by the ct and els unsolicited event
11005 * handlers to get the buffer associated with the unsolicited
11008 * This function is called with no lock held.
11010 struct lpfc_dmabuf *
11011 lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
11014 struct lpfc_dmabuf *mp, *next_mp;
11015 struct list_head *slp = &pring->postbufq;
11017 /* Search postbufq, from the beginning, looking for a match on phys */
11018 spin_lock_irq(&phba->hbalock);
11019 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
11020 if (mp->phys == phys) {
11021 list_del_init(&mp->list);
11022 pring->postbufq_cnt--;
11023 spin_unlock_irq(&phba->hbalock);
11028 spin_unlock_irq(&phba->hbalock);
11029 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11030 "0410 Cannot find virtual addr for mapped buf on "
11031 "ring %d Data x%llx x%px x%px x%x\n",
11032 pring->ringno, (unsigned long long)phys,
11033 slp->next, slp->prev, pring->postbufq_cnt);
11038 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
11039 * @phba: Pointer to HBA context object.
11040 * @cmdiocb: Pointer to driver command iocb object.
11041 * @rspiocb: Pointer to driver response iocb object.
11043 * This function is the completion handler for the abort iocbs for
11044 * ELS commands. This function is called from the ELS ring event
11045 * handler with no lock held. This function frees memory resources
11046 * associated with the abort iocb.
11049 lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
11050 struct lpfc_iocbq *rspiocb)
11052 IOCB_t *irsp = &rspiocb->iocb;
11053 uint16_t abort_iotag, abort_context;
11054 struct lpfc_iocbq *abort_iocb = NULL;
11056 if (irsp->ulpStatus) {
11059 * Assume that the port already completed and returned, or
11060 * will return the iocb. Just Log the message.
11062 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
11063 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
11065 spin_lock_irq(&phba->hbalock);
11066 if (phba->sli_rev < LPFC_SLI_REV4) {
11067 if (irsp->ulpCommand == CMD_ABORT_XRI_CX &&
11068 irsp->ulpStatus == IOSTAT_LOCAL_REJECT &&
11069 irsp->un.ulpWord[4] == IOERR_ABORT_REQUESTED) {
11070 spin_unlock_irq(&phba->hbalock);
11073 if (abort_iotag != 0 &&
11074 abort_iotag <= phba->sli.last_iotag)
11076 phba->sli.iocbq_lookup[abort_iotag];
11078 /* For sli4 the abort_tag is the XRI,
11079 * so the abort routine puts the iotag of the iocb
11080 * being aborted in the context field of the abort
11083 abort_iocb = phba->sli.iocbq_lookup[abort_context];
11085 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI,
11086 "0327 Cannot abort els iocb x%px "
11087 "with tag %x context %x, abort status %x, "
11089 abort_iocb, abort_iotag, abort_context,
11090 irsp->ulpStatus, irsp->un.ulpWord[4]);
11092 spin_unlock_irq(&phba->hbalock);
11095 lpfc_sli_release_iocbq(phba, cmdiocb);
11100 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
11101 * @phba: Pointer to HBA context object.
11102 * @cmdiocb: Pointer to driver command iocb object.
11103 * @rspiocb: Pointer to driver response iocb object.
11105 * The function is called from SLI ring event handler with no
11106 * lock held. This function is the completion handler for ELS commands
11107 * which are aborted. The function frees memory resources used for
11108 * the aborted ELS commands.
11111 lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
11112 struct lpfc_iocbq *rspiocb)
11114 IOCB_t *irsp = &rspiocb->iocb;
11116 /* ELS cmd tag <ulpIoTag> completes */
11117 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
11118 "0139 Ignoring ELS cmd tag x%x completion Data: "
11120 irsp->ulpIoTag, irsp->ulpStatus,
11121 irsp->un.ulpWord[4], irsp->ulpTimeout);
11122 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
11123 lpfc_ct_free_iocb(phba, cmdiocb);
11125 lpfc_els_free_iocb(phba, cmdiocb);
11130 * lpfc_sli_abort_iotag_issue - Issue abort for a command iocb
11131 * @phba: Pointer to HBA context object.
11132 * @pring: Pointer to driver SLI ring object.
11133 * @cmdiocb: Pointer to driver command iocb object.
11135 * This function issues an abort iocb for the provided command iocb down to
11136 * the port. Other than the case the outstanding command iocb is an abort
11137 * request, this function issues abort out unconditionally. This function is
11138 * called with hbalock held. The function returns 0 when it fails due to
11139 * memory allocation failure or when the command iocb is an abort request.
11142 lpfc_sli_abort_iotag_issue(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
11143 struct lpfc_iocbq *cmdiocb)
11145 struct lpfc_vport *vport = cmdiocb->vport;
11146 struct lpfc_iocbq *abtsiocbp;
11147 IOCB_t *icmd = NULL;
11148 IOCB_t *iabt = NULL;
11150 unsigned long iflags;
11151 struct lpfc_nodelist *ndlp;
11153 lockdep_assert_held(&phba->hbalock);
11156 * There are certain command types we don't want to abort. And we
11157 * don't want to abort commands that are already in the process of
11160 icmd = &cmdiocb->iocb;
11161 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
11162 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
11163 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
11166 /* issue ABTS for this IOCB based on iotag */
11167 abtsiocbp = __lpfc_sli_get_iocbq(phba);
11168 if (abtsiocbp == NULL)
11171 /* This signals the response to set the correct status
11172 * before calling the completion handler
11174 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
11176 iabt = &abtsiocbp->iocb;
11177 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
11178 iabt->un.acxri.abortContextTag = icmd->ulpContext;
11179 if (phba->sli_rev == LPFC_SLI_REV4) {
11180 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
11181 iabt->un.acxri.abortContextTag = cmdiocb->iotag;
11183 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
11184 if (pring->ringno == LPFC_ELS_RING) {
11185 ndlp = (struct lpfc_nodelist *)(cmdiocb->context1);
11186 iabt->un.acxri.abortContextTag = ndlp->nlp_rpi;
11190 iabt->ulpClass = icmd->ulpClass;
11192 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
11193 abtsiocbp->hba_wqidx = cmdiocb->hba_wqidx;
11194 if (cmdiocb->iocb_flag & LPFC_IO_FCP)
11195 abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
11196 if (cmdiocb->iocb_flag & LPFC_IO_FOF)
11197 abtsiocbp->iocb_flag |= LPFC_IO_FOF;
11199 if (phba->link_state >= LPFC_LINK_UP)
11200 iabt->ulpCommand = CMD_ABORT_XRI_CN;
11202 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
11204 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
11205 abtsiocbp->vport = vport;
11207 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
11208 "0339 Abort xri x%x, original iotag x%x, "
11209 "abort cmd iotag x%x\n",
11210 iabt->un.acxri.abortIoTag,
11211 iabt->un.acxri.abortContextTag,
11214 if (phba->sli_rev == LPFC_SLI_REV4) {
11215 pring = lpfc_sli4_calc_ring(phba, abtsiocbp);
11216 if (unlikely(pring == NULL))
11218 /* Note: both hbalock and ring_lock need to be set here */
11219 spin_lock_irqsave(&pring->ring_lock, iflags);
11220 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
11222 spin_unlock_irqrestore(&pring->ring_lock, iflags);
11224 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
11229 __lpfc_sli_release_iocbq(phba, abtsiocbp);
11232 * Caller to this routine should check for IOCB_ERROR
11233 * and handle it properly. This routine no longer removes
11234 * iocb off txcmplq and call compl in case of IOCB_ERROR.
11240 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
11241 * @phba: Pointer to HBA context object.
11242 * @pring: Pointer to driver SLI ring object.
11243 * @cmdiocb: Pointer to driver command iocb object.
11245 * This function issues an abort iocb for the provided command iocb. In case
11246 * of unloading, the abort iocb will not be issued to commands on the ELS
11247 * ring. Instead, the callback function shall be changed to those commands
11248 * so that nothing happens when them finishes. This function is called with
11249 * hbalock held. The function returns 0 when the command iocb is an abort
11253 lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
11254 struct lpfc_iocbq *cmdiocb)
11256 struct lpfc_vport *vport = cmdiocb->vport;
11257 int retval = IOCB_ERROR;
11258 IOCB_t *icmd = NULL;
11260 lockdep_assert_held(&phba->hbalock);
11263 * There are certain command types we don't want to abort. And we
11264 * don't want to abort commands that are already in the process of
11267 icmd = &cmdiocb->iocb;
11268 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
11269 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
11270 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
11274 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
11275 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
11277 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
11278 goto abort_iotag_exit;
11282 * If we're unloading, don't abort iocb on the ELS ring, but change
11283 * the callback so that nothing happens when it finishes.
11285 if ((vport->load_flag & FC_UNLOADING) &&
11286 (pring->ringno == LPFC_ELS_RING)) {
11287 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
11288 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
11290 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
11291 goto abort_iotag_exit;
11294 /* Now, we try to issue the abort to the cmdiocb out */
11295 retval = lpfc_sli_abort_iotag_issue(phba, pring, cmdiocb);
11299 * Caller to this routine should check for IOCB_ERROR
11300 * and handle it properly. This routine no longer removes
11301 * iocb off txcmplq and call compl in case of IOCB_ERROR.
11307 * lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
11308 * @phba: pointer to lpfc HBA data structure.
11310 * This routine will abort all pending and outstanding iocbs to an HBA.
11313 lpfc_sli_hba_iocb_abort(struct lpfc_hba *phba)
11315 struct lpfc_sli *psli = &phba->sli;
11316 struct lpfc_sli_ring *pring;
11317 struct lpfc_queue *qp = NULL;
11320 if (phba->sli_rev != LPFC_SLI_REV4) {
11321 for (i = 0; i < psli->num_rings; i++) {
11322 pring = &psli->sli3_ring[i];
11323 lpfc_sli_abort_iocb_ring(phba, pring);
11327 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
11331 lpfc_sli_abort_iocb_ring(phba, pring);
11336 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
11337 * @iocbq: Pointer to driver iocb object.
11338 * @vport: Pointer to driver virtual port object.
11339 * @tgt_id: SCSI ID of the target.
11340 * @lun_id: LUN ID of the scsi device.
11341 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
11343 * This function acts as an iocb filter for functions which abort or count
11344 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
11345 * 0 if the filtering criteria is met for the given iocb and will return
11346 * 1 if the filtering criteria is not met.
11347 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
11348 * given iocb is for the SCSI device specified by vport, tgt_id and
11349 * lun_id parameter.
11350 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
11351 * given iocb is for the SCSI target specified by vport and tgt_id
11353 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
11354 * given iocb is for the SCSI host associated with the given vport.
11355 * This function is called with no locks held.
11358 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
11359 uint16_t tgt_id, uint64_t lun_id,
11360 lpfc_ctx_cmd ctx_cmd)
11362 struct lpfc_io_buf *lpfc_cmd;
11365 if (iocbq->vport != vport)
11368 if (!(iocbq->iocb_flag & LPFC_IO_FCP) ||
11369 !(iocbq->iocb_flag & LPFC_IO_ON_TXCMPLQ))
11372 lpfc_cmd = container_of(iocbq, struct lpfc_io_buf, cur_iocbq);
11374 if (lpfc_cmd->pCmd == NULL)
11379 if ((lpfc_cmd->rdata) && (lpfc_cmd->rdata->pnode) &&
11380 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
11381 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
11385 if ((lpfc_cmd->rdata) && (lpfc_cmd->rdata->pnode) &&
11386 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
11389 case LPFC_CTX_HOST:
11393 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
11394 __func__, ctx_cmd);
11402 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
11403 * @vport: Pointer to virtual port.
11404 * @tgt_id: SCSI ID of the target.
11405 * @lun_id: LUN ID of the scsi device.
11406 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
11408 * This function returns number of FCP commands pending for the vport.
11409 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
11410 * commands pending on the vport associated with SCSI device specified
11411 * by tgt_id and lun_id parameters.
11412 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
11413 * commands pending on the vport associated with SCSI target specified
11414 * by tgt_id parameter.
11415 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
11416 * commands pending on the vport.
11417 * This function returns the number of iocbs which satisfy the filter.
11418 * This function is called without any lock held.
11421 lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
11422 lpfc_ctx_cmd ctx_cmd)
11424 struct lpfc_hba *phba = vport->phba;
11425 struct lpfc_iocbq *iocbq;
11428 spin_lock_irq(&phba->hbalock);
11429 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
11430 iocbq = phba->sli.iocbq_lookup[i];
11432 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
11436 spin_unlock_irq(&phba->hbalock);
11442 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
11443 * @phba: Pointer to HBA context object
11444 * @cmdiocb: Pointer to command iocb object.
11445 * @rspiocb: Pointer to response iocb object.
11447 * This function is called when an aborted FCP iocb completes. This
11448 * function is called by the ring event handler with no lock held.
11449 * This function frees the iocb.
11452 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
11453 struct lpfc_iocbq *rspiocb)
11455 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11456 "3096 ABORT_XRI_CN completing on rpi x%x "
11457 "original iotag x%x, abort cmd iotag x%x "
11458 "status 0x%x, reason 0x%x\n",
11459 cmdiocb->iocb.un.acxri.abortContextTag,
11460 cmdiocb->iocb.un.acxri.abortIoTag,
11461 cmdiocb->iotag, rspiocb->iocb.ulpStatus,
11462 rspiocb->iocb.un.ulpWord[4]);
11463 lpfc_sli_release_iocbq(phba, cmdiocb);
11468 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
11469 * @vport: Pointer to virtual port.
11470 * @pring: Pointer to driver SLI ring object.
11471 * @tgt_id: SCSI ID of the target.
11472 * @lun_id: LUN ID of the scsi device.
11473 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
11475 * This function sends an abort command for every SCSI command
11476 * associated with the given virtual port pending on the ring
11477 * filtered by lpfc_sli_validate_fcp_iocb function.
11478 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
11479 * FCP iocbs associated with lun specified by tgt_id and lun_id
11481 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
11482 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
11483 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
11484 * FCP iocbs associated with virtual port.
11485 * This function returns number of iocbs it failed to abort.
11486 * This function is called with no locks held.
11489 lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
11490 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
11492 struct lpfc_hba *phba = vport->phba;
11493 struct lpfc_iocbq *iocbq;
11494 struct lpfc_iocbq *abtsiocb;
11495 struct lpfc_sli_ring *pring_s4;
11496 IOCB_t *cmd = NULL;
11497 int errcnt = 0, ret_val = 0;
11500 /* all I/Os are in process of being flushed */
11501 if (phba->hba_flag & HBA_IOQ_FLUSH)
11504 for (i = 1; i <= phba->sli.last_iotag; i++) {
11505 iocbq = phba->sli.iocbq_lookup[i];
11507 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
11512 * If the iocbq is already being aborted, don't take a second
11513 * action, but do count it.
11515 if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
11518 /* issue ABTS for this IOCB based on iotag */
11519 abtsiocb = lpfc_sli_get_iocbq(phba);
11520 if (abtsiocb == NULL) {
11525 /* indicate the IO is being aborted by the driver. */
11526 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
11528 cmd = &iocbq->iocb;
11529 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
11530 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
11531 if (phba->sli_rev == LPFC_SLI_REV4)
11532 abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
11534 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
11535 abtsiocb->iocb.ulpLe = 1;
11536 abtsiocb->iocb.ulpClass = cmd->ulpClass;
11537 abtsiocb->vport = vport;
11539 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
11540 abtsiocb->hba_wqidx = iocbq->hba_wqidx;
11541 if (iocbq->iocb_flag & LPFC_IO_FCP)
11542 abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
11543 if (iocbq->iocb_flag & LPFC_IO_FOF)
11544 abtsiocb->iocb_flag |= LPFC_IO_FOF;
11546 if (lpfc_is_link_up(phba))
11547 abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
11549 abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
11551 /* Setup callback routine and issue the command. */
11552 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
11553 if (phba->sli_rev == LPFC_SLI_REV4) {
11554 pring_s4 = lpfc_sli4_calc_ring(phba, iocbq);
11557 ret_val = lpfc_sli_issue_iocb(phba, pring_s4->ringno,
11560 ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
11562 if (ret_val == IOCB_ERROR) {
11563 lpfc_sli_release_iocbq(phba, abtsiocb);
11573 * lpfc_sli_abort_taskmgmt - issue abort for all commands on a host/target/LUN
11574 * @vport: Pointer to virtual port.
11575 * @pring: Pointer to driver SLI ring object.
11576 * @tgt_id: SCSI ID of the target.
11577 * @lun_id: LUN ID of the scsi device.
11578 * @taskmgmt_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
11580 * This function sends an abort command for every SCSI command
11581 * associated with the given virtual port pending on the ring
11582 * filtered by lpfc_sli_validate_fcp_iocb function.
11583 * When taskmgmt_cmd == LPFC_CTX_LUN, the function sends abort only to the
11584 * FCP iocbs associated with lun specified by tgt_id and lun_id
11586 * When taskmgmt_cmd == LPFC_CTX_TGT, the function sends abort only to the
11587 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
11588 * When taskmgmt_cmd == LPFC_CTX_HOST, the function sends abort to all
11589 * FCP iocbs associated with virtual port.
11590 * This function returns number of iocbs it aborted .
11591 * This function is called with no locks held right after a taskmgmt
11595 lpfc_sli_abort_taskmgmt(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
11596 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd cmd)
11598 struct lpfc_hba *phba = vport->phba;
11599 struct lpfc_io_buf *lpfc_cmd;
11600 struct lpfc_iocbq *abtsiocbq;
11601 struct lpfc_nodelist *ndlp;
11602 struct lpfc_iocbq *iocbq;
11604 int sum, i, ret_val;
11605 unsigned long iflags;
11606 struct lpfc_sli_ring *pring_s4 = NULL;
11608 spin_lock_irqsave(&phba->hbalock, iflags);
11610 /* all I/Os are in process of being flushed */
11611 if (phba->hba_flag & HBA_IOQ_FLUSH) {
11612 spin_unlock_irqrestore(&phba->hbalock, iflags);
11617 for (i = 1; i <= phba->sli.last_iotag; i++) {
11618 iocbq = phba->sli.iocbq_lookup[i];
11620 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
11624 /* Guard against IO completion being called at same time */
11625 lpfc_cmd = container_of(iocbq, struct lpfc_io_buf, cur_iocbq);
11626 spin_lock(&lpfc_cmd->buf_lock);
11628 if (!lpfc_cmd->pCmd) {
11629 spin_unlock(&lpfc_cmd->buf_lock);
11633 if (phba->sli_rev == LPFC_SLI_REV4) {
11635 phba->sli4_hba.hdwq[iocbq->hba_wqidx].io_wq->pring;
11637 spin_unlock(&lpfc_cmd->buf_lock);
11640 /* Note: both hbalock and ring_lock must be set here */
11641 spin_lock(&pring_s4->ring_lock);
11645 * If the iocbq is already being aborted, don't take a second
11646 * action, but do count it.
11648 if ((iocbq->iocb_flag & LPFC_DRIVER_ABORTED) ||
11649 !(iocbq->iocb_flag & LPFC_IO_ON_TXCMPLQ)) {
11650 if (phba->sli_rev == LPFC_SLI_REV4)
11651 spin_unlock(&pring_s4->ring_lock);
11652 spin_unlock(&lpfc_cmd->buf_lock);
11656 /* issue ABTS for this IOCB based on iotag */
11657 abtsiocbq = __lpfc_sli_get_iocbq(phba);
11659 if (phba->sli_rev == LPFC_SLI_REV4)
11660 spin_unlock(&pring_s4->ring_lock);
11661 spin_unlock(&lpfc_cmd->buf_lock);
11665 icmd = &iocbq->iocb;
11666 abtsiocbq->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
11667 abtsiocbq->iocb.un.acxri.abortContextTag = icmd->ulpContext;
11668 if (phba->sli_rev == LPFC_SLI_REV4)
11669 abtsiocbq->iocb.un.acxri.abortIoTag =
11670 iocbq->sli4_xritag;
11672 abtsiocbq->iocb.un.acxri.abortIoTag = icmd->ulpIoTag;
11673 abtsiocbq->iocb.ulpLe = 1;
11674 abtsiocbq->iocb.ulpClass = icmd->ulpClass;
11675 abtsiocbq->vport = vport;
11677 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
11678 abtsiocbq->hba_wqidx = iocbq->hba_wqidx;
11679 if (iocbq->iocb_flag & LPFC_IO_FCP)
11680 abtsiocbq->iocb_flag |= LPFC_USE_FCPWQIDX;
11681 if (iocbq->iocb_flag & LPFC_IO_FOF)
11682 abtsiocbq->iocb_flag |= LPFC_IO_FOF;
11684 ndlp = lpfc_cmd->rdata->pnode;
11686 if (lpfc_is_link_up(phba) &&
11687 (ndlp && ndlp->nlp_state == NLP_STE_MAPPED_NODE))
11688 abtsiocbq->iocb.ulpCommand = CMD_ABORT_XRI_CN;
11690 abtsiocbq->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
11692 /* Setup callback routine and issue the command. */
11693 abtsiocbq->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
11696 * Indicate the IO is being aborted by the driver and set
11697 * the caller's flag into the aborted IO.
11699 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
11701 if (phba->sli_rev == LPFC_SLI_REV4) {
11702 ret_val = __lpfc_sli_issue_iocb(phba, pring_s4->ringno,
11704 spin_unlock(&pring_s4->ring_lock);
11706 ret_val = __lpfc_sli_issue_iocb(phba, pring->ringno,
11710 spin_unlock(&lpfc_cmd->buf_lock);
11712 if (ret_val == IOCB_ERROR)
11713 __lpfc_sli_release_iocbq(phba, abtsiocbq);
11717 spin_unlock_irqrestore(&phba->hbalock, iflags);
11722 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
11723 * @phba: Pointer to HBA context object.
11724 * @cmdiocbq: Pointer to command iocb.
11725 * @rspiocbq: Pointer to response iocb.
11727 * This function is the completion handler for iocbs issued using
11728 * lpfc_sli_issue_iocb_wait function. This function is called by the
11729 * ring event handler function without any lock held. This function
11730 * can be called from both worker thread context and interrupt
11731 * context. This function also can be called from other thread which
11732 * cleans up the SLI layer objects.
11733 * This function copy the contents of the response iocb to the
11734 * response iocb memory object provided by the caller of
11735 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
11736 * sleeps for the iocb completion.
11739 lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
11740 struct lpfc_iocbq *cmdiocbq,
11741 struct lpfc_iocbq *rspiocbq)
11743 wait_queue_head_t *pdone_q;
11744 unsigned long iflags;
11745 struct lpfc_io_buf *lpfc_cmd;
11747 spin_lock_irqsave(&phba->hbalock, iflags);
11748 if (cmdiocbq->iocb_flag & LPFC_IO_WAKE_TMO) {
11751 * A time out has occurred for the iocb. If a time out
11752 * completion handler has been supplied, call it. Otherwise,
11753 * just free the iocbq.
11756 spin_unlock_irqrestore(&phba->hbalock, iflags);
11757 cmdiocbq->iocb_cmpl = cmdiocbq->wait_iocb_cmpl;
11758 cmdiocbq->wait_iocb_cmpl = NULL;
11759 if (cmdiocbq->iocb_cmpl)
11760 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, NULL);
11762 lpfc_sli_release_iocbq(phba, cmdiocbq);
11766 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
11767 if (cmdiocbq->context2 && rspiocbq)
11768 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
11769 &rspiocbq->iocb, sizeof(IOCB_t));
11771 /* Set the exchange busy flag for task management commands */
11772 if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) &&
11773 !(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) {
11774 lpfc_cmd = container_of(cmdiocbq, struct lpfc_io_buf,
11776 lpfc_cmd->exch_busy = rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY;
11779 pdone_q = cmdiocbq->context_un.wait_queue;
11782 spin_unlock_irqrestore(&phba->hbalock, iflags);
11787 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
11788 * @phba: Pointer to HBA context object..
11789 * @piocbq: Pointer to command iocb.
11790 * @flag: Flag to test.
11792 * This routine grabs the hbalock and then test the iocb_flag to
11793 * see if the passed in flag is set.
11795 * 1 if flag is set.
11796 * 0 if flag is not set.
11799 lpfc_chk_iocb_flg(struct lpfc_hba *phba,
11800 struct lpfc_iocbq *piocbq, uint32_t flag)
11802 unsigned long iflags;
11805 spin_lock_irqsave(&phba->hbalock, iflags);
11806 ret = piocbq->iocb_flag & flag;
11807 spin_unlock_irqrestore(&phba->hbalock, iflags);
11813 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
11814 * @phba: Pointer to HBA context object..
11815 * @pring: Pointer to sli ring.
11816 * @piocb: Pointer to command iocb.
11817 * @prspiocbq: Pointer to response iocb.
11818 * @timeout: Timeout in number of seconds.
11820 * This function issues the iocb to firmware and waits for the
11821 * iocb to complete. The iocb_cmpl field of the shall be used
11822 * to handle iocbs which time out. If the field is NULL, the
11823 * function shall free the iocbq structure. If more clean up is
11824 * needed, the caller is expected to provide a completion function
11825 * that will provide the needed clean up. If the iocb command is
11826 * not completed within timeout seconds, the function will either
11827 * free the iocbq structure (if iocb_cmpl == NULL) or execute the
11828 * completion function set in the iocb_cmpl field and then return
11829 * a status of IOCB_TIMEDOUT. The caller should not free the iocb
11830 * resources if this function returns IOCB_TIMEDOUT.
11831 * The function waits for the iocb completion using an
11832 * non-interruptible wait.
11833 * This function will sleep while waiting for iocb completion.
11834 * So, this function should not be called from any context which
11835 * does not allow sleeping. Due to the same reason, this function
11836 * cannot be called with interrupt disabled.
11837 * This function assumes that the iocb completions occur while
11838 * this function sleep. So, this function cannot be called from
11839 * the thread which process iocb completion for this ring.
11840 * This function clears the iocb_flag of the iocb object before
11841 * issuing the iocb and the iocb completion handler sets this
11842 * flag and wakes this thread when the iocb completes.
11843 * The contents of the response iocb will be copied to prspiocbq
11844 * by the completion handler when the command completes.
11845 * This function returns IOCB_SUCCESS when success.
11846 * This function is called with no lock held.
11849 lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
11850 uint32_t ring_number,
11851 struct lpfc_iocbq *piocb,
11852 struct lpfc_iocbq *prspiocbq,
11855 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
11856 long timeleft, timeout_req = 0;
11857 int retval = IOCB_SUCCESS;
11859 struct lpfc_iocbq *iocb;
11861 int txcmplq_cnt = 0;
11862 struct lpfc_sli_ring *pring;
11863 unsigned long iflags;
11864 bool iocb_completed = true;
11866 if (phba->sli_rev >= LPFC_SLI_REV4)
11867 pring = lpfc_sli4_calc_ring(phba, piocb);
11869 pring = &phba->sli.sli3_ring[ring_number];
11871 * If the caller has provided a response iocbq buffer, then context2
11872 * is NULL or its an error.
11875 if (piocb->context2)
11877 piocb->context2 = prspiocbq;
11880 piocb->wait_iocb_cmpl = piocb->iocb_cmpl;
11881 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
11882 piocb->context_un.wait_queue = &done_q;
11883 piocb->iocb_flag &= ~(LPFC_IO_WAKE | LPFC_IO_WAKE_TMO);
11885 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
11886 if (lpfc_readl(phba->HCregaddr, &creg_val))
11888 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
11889 writel(creg_val, phba->HCregaddr);
11890 readl(phba->HCregaddr); /* flush */
11893 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb,
11894 SLI_IOCB_RET_IOCB);
11895 if (retval == IOCB_SUCCESS) {
11896 timeout_req = msecs_to_jiffies(timeout * 1000);
11897 timeleft = wait_event_timeout(done_q,
11898 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
11900 spin_lock_irqsave(&phba->hbalock, iflags);
11901 if (!(piocb->iocb_flag & LPFC_IO_WAKE)) {
11904 * IOCB timed out. Inform the wake iocb wait
11905 * completion function and set local status
11908 iocb_completed = false;
11909 piocb->iocb_flag |= LPFC_IO_WAKE_TMO;
11911 spin_unlock_irqrestore(&phba->hbalock, iflags);
11912 if (iocb_completed) {
11913 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11914 "0331 IOCB wake signaled\n");
11915 /* Note: we are not indicating if the IOCB has a success
11916 * status or not - that's for the caller to check.
11917 * IOCB_SUCCESS means just that the command was sent and
11918 * completed. Not that it completed successfully.
11920 } else if (timeleft == 0) {
11921 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11922 "0338 IOCB wait timeout error - no "
11923 "wake response Data x%x\n", timeout);
11924 retval = IOCB_TIMEDOUT;
11926 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11927 "0330 IOCB wake NOT set, "
11929 timeout, (timeleft / jiffies));
11930 retval = IOCB_TIMEDOUT;
11932 } else if (retval == IOCB_BUSY) {
11933 if (phba->cfg_log_verbose & LOG_SLI) {
11934 list_for_each_entry(iocb, &pring->txq, list) {
11937 list_for_each_entry(iocb, &pring->txcmplq, list) {
11940 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11941 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
11942 phba->iocb_cnt, txq_cnt, txcmplq_cnt);
11946 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11947 "0332 IOCB wait issue failed, Data x%x\n",
11949 retval = IOCB_ERROR;
11952 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
11953 if (lpfc_readl(phba->HCregaddr, &creg_val))
11955 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
11956 writel(creg_val, phba->HCregaddr);
11957 readl(phba->HCregaddr); /* flush */
11961 piocb->context2 = NULL;
11963 piocb->context_un.wait_queue = NULL;
11964 piocb->iocb_cmpl = NULL;
11969 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
11970 * @phba: Pointer to HBA context object.
11971 * @pmboxq: Pointer to driver mailbox object.
11972 * @timeout: Timeout in number of seconds.
11974 * This function issues the mailbox to firmware and waits for the
11975 * mailbox command to complete. If the mailbox command is not
11976 * completed within timeout seconds, it returns MBX_TIMEOUT.
11977 * The function waits for the mailbox completion using an
11978 * interruptible wait. If the thread is woken up due to a
11979 * signal, MBX_TIMEOUT error is returned to the caller. Caller
11980 * should not free the mailbox resources, if this function returns
11982 * This function will sleep while waiting for mailbox completion.
11983 * So, this function should not be called from any context which
11984 * does not allow sleeping. Due to the same reason, this function
11985 * cannot be called with interrupt disabled.
11986 * This function assumes that the mailbox completion occurs while
11987 * this function sleep. So, this function cannot be called from
11988 * the worker thread which processes mailbox completion.
11989 * This function is called in the context of HBA management
11991 * This function returns MBX_SUCCESS when successful.
11992 * This function is called with no lock held.
11995 lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
11998 struct completion mbox_done;
12000 unsigned long flag;
12002 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
12003 /* setup wake call as IOCB callback */
12004 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
12006 /* setup context3 field to pass wait_queue pointer to wake function */
12007 init_completion(&mbox_done);
12008 pmboxq->context3 = &mbox_done;
12009 /* now issue the command */
12010 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
12011 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
12012 wait_for_completion_timeout(&mbox_done,
12013 msecs_to_jiffies(timeout * 1000));
12015 spin_lock_irqsave(&phba->hbalock, flag);
12016 pmboxq->context3 = NULL;
12018 * if LPFC_MBX_WAKE flag is set the mailbox is completed
12019 * else do not free the resources.
12021 if (pmboxq->mbox_flag & LPFC_MBX_WAKE) {
12022 retval = MBX_SUCCESS;
12024 retval = MBX_TIMEOUT;
12025 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12027 spin_unlock_irqrestore(&phba->hbalock, flag);
12033 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
12034 * @phba: Pointer to HBA context.
12036 * This function is called to shutdown the driver's mailbox sub-system.
12037 * It first marks the mailbox sub-system is in a block state to prevent
12038 * the asynchronous mailbox command from issued off the pending mailbox
12039 * command queue. If the mailbox command sub-system shutdown is due to
12040 * HBA error conditions such as EEH or ERATT, this routine shall invoke
12041 * the mailbox sub-system flush routine to forcefully bring down the
12042 * mailbox sub-system. Otherwise, if it is due to normal condition (such
12043 * as with offline or HBA function reset), this routine will wait for the
12044 * outstanding mailbox command to complete before invoking the mailbox
12045 * sub-system flush routine to gracefully bring down mailbox sub-system.
12048 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba, int mbx_action)
12050 struct lpfc_sli *psli = &phba->sli;
12051 unsigned long timeout;
12053 if (mbx_action == LPFC_MBX_NO_WAIT) {
12054 /* delay 100ms for port state */
12056 lpfc_sli_mbox_sys_flush(phba);
12059 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
12061 /* Disable softirqs, including timers from obtaining phba->hbalock */
12062 local_bh_disable();
12064 spin_lock_irq(&phba->hbalock);
12065 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
12067 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
12068 /* Determine how long we might wait for the active mailbox
12069 * command to be gracefully completed by firmware.
12071 if (phba->sli.mbox_active)
12072 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
12073 phba->sli.mbox_active) *
12075 spin_unlock_irq(&phba->hbalock);
12077 /* Enable softirqs again, done with phba->hbalock */
12080 while (phba->sli.mbox_active) {
12081 /* Check active mailbox complete status every 2ms */
12083 if (time_after(jiffies, timeout))
12084 /* Timeout, let the mailbox flush routine to
12085 * forcefully release active mailbox command
12090 spin_unlock_irq(&phba->hbalock);
12092 /* Enable softirqs again, done with phba->hbalock */
12096 lpfc_sli_mbox_sys_flush(phba);
12100 * lpfc_sli_eratt_read - read sli-3 error attention events
12101 * @phba: Pointer to HBA context.
12103 * This function is called to read the SLI3 device error attention registers
12104 * for possible error attention events. The caller must hold the hostlock
12105 * with spin_lock_irq().
12107 * This function returns 1 when there is Error Attention in the Host Attention
12108 * Register and returns 0 otherwise.
12111 lpfc_sli_eratt_read(struct lpfc_hba *phba)
12115 /* Read chip Host Attention (HA) register */
12116 if (lpfc_readl(phba->HAregaddr, &ha_copy))
12119 if (ha_copy & HA_ERATT) {
12120 /* Read host status register to retrieve error event */
12121 if (lpfc_sli_read_hs(phba))
12124 /* Check if there is a deferred error condition is active */
12125 if ((HS_FFER1 & phba->work_hs) &&
12126 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
12127 HS_FFER6 | HS_FFER7 | HS_FFER8) & phba->work_hs)) {
12128 phba->hba_flag |= DEFER_ERATT;
12129 /* Clear all interrupt enable conditions */
12130 writel(0, phba->HCregaddr);
12131 readl(phba->HCregaddr);
12134 /* Set the driver HA work bitmap */
12135 phba->work_ha |= HA_ERATT;
12136 /* Indicate polling handles this ERATT */
12137 phba->hba_flag |= HBA_ERATT_HANDLED;
12143 /* Set the driver HS work bitmap */
12144 phba->work_hs |= UNPLUG_ERR;
12145 /* Set the driver HA work bitmap */
12146 phba->work_ha |= HA_ERATT;
12147 /* Indicate polling handles this ERATT */
12148 phba->hba_flag |= HBA_ERATT_HANDLED;
12153 * lpfc_sli4_eratt_read - read sli-4 error attention events
12154 * @phba: Pointer to HBA context.
12156 * This function is called to read the SLI4 device error attention registers
12157 * for possible error attention events. The caller must hold the hostlock
12158 * with spin_lock_irq().
12160 * This function returns 1 when there is Error Attention in the Host Attention
12161 * Register and returns 0 otherwise.
12164 lpfc_sli4_eratt_read(struct lpfc_hba *phba)
12166 uint32_t uerr_sta_hi, uerr_sta_lo;
12167 uint32_t if_type, portsmphr;
12168 struct lpfc_register portstat_reg;
12171 * For now, use the SLI4 device internal unrecoverable error
12172 * registers for error attention. This can be changed later.
12174 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
12176 case LPFC_SLI_INTF_IF_TYPE_0:
12177 if (lpfc_readl(phba->sli4_hba.u.if_type0.UERRLOregaddr,
12179 lpfc_readl(phba->sli4_hba.u.if_type0.UERRHIregaddr,
12181 phba->work_hs |= UNPLUG_ERR;
12182 phba->work_ha |= HA_ERATT;
12183 phba->hba_flag |= HBA_ERATT_HANDLED;
12186 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
12187 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
12188 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12189 "1423 HBA Unrecoverable error: "
12190 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
12191 "ue_mask_lo_reg=0x%x, "
12192 "ue_mask_hi_reg=0x%x\n",
12193 uerr_sta_lo, uerr_sta_hi,
12194 phba->sli4_hba.ue_mask_lo,
12195 phba->sli4_hba.ue_mask_hi);
12196 phba->work_status[0] = uerr_sta_lo;
12197 phba->work_status[1] = uerr_sta_hi;
12198 phba->work_ha |= HA_ERATT;
12199 phba->hba_flag |= HBA_ERATT_HANDLED;
12203 case LPFC_SLI_INTF_IF_TYPE_2:
12204 case LPFC_SLI_INTF_IF_TYPE_6:
12205 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
12206 &portstat_reg.word0) ||
12207 lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
12209 phba->work_hs |= UNPLUG_ERR;
12210 phba->work_ha |= HA_ERATT;
12211 phba->hba_flag |= HBA_ERATT_HANDLED;
12214 if (bf_get(lpfc_sliport_status_err, &portstat_reg)) {
12215 phba->work_status[0] =
12216 readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
12217 phba->work_status[1] =
12218 readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
12219 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12220 "2885 Port Status Event: "
12221 "port status reg 0x%x, "
12222 "port smphr reg 0x%x, "
12223 "error 1=0x%x, error 2=0x%x\n",
12224 portstat_reg.word0,
12226 phba->work_status[0],
12227 phba->work_status[1]);
12228 phba->work_ha |= HA_ERATT;
12229 phba->hba_flag |= HBA_ERATT_HANDLED;
12233 case LPFC_SLI_INTF_IF_TYPE_1:
12235 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12236 "2886 HBA Error Attention on unsupported "
12237 "if type %d.", if_type);
12245 * lpfc_sli_check_eratt - check error attention events
12246 * @phba: Pointer to HBA context.
12248 * This function is called from timer soft interrupt context to check HBA's
12249 * error attention register bit for error attention events.
12251 * This function returns 1 when there is Error Attention in the Host Attention
12252 * Register and returns 0 otherwise.
12255 lpfc_sli_check_eratt(struct lpfc_hba *phba)
12259 /* If somebody is waiting to handle an eratt, don't process it
12260 * here. The brdkill function will do this.
12262 if (phba->link_flag & LS_IGNORE_ERATT)
12265 /* Check if interrupt handler handles this ERATT */
12266 spin_lock_irq(&phba->hbalock);
12267 if (phba->hba_flag & HBA_ERATT_HANDLED) {
12268 /* Interrupt handler has handled ERATT */
12269 spin_unlock_irq(&phba->hbalock);
12274 * If there is deferred error attention, do not check for error
12277 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
12278 spin_unlock_irq(&phba->hbalock);
12282 /* If PCI channel is offline, don't process it */
12283 if (unlikely(pci_channel_offline(phba->pcidev))) {
12284 spin_unlock_irq(&phba->hbalock);
12288 switch (phba->sli_rev) {
12289 case LPFC_SLI_REV2:
12290 case LPFC_SLI_REV3:
12291 /* Read chip Host Attention (HA) register */
12292 ha_copy = lpfc_sli_eratt_read(phba);
12294 case LPFC_SLI_REV4:
12295 /* Read device Uncoverable Error (UERR) registers */
12296 ha_copy = lpfc_sli4_eratt_read(phba);
12299 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12300 "0299 Invalid SLI revision (%d)\n",
12305 spin_unlock_irq(&phba->hbalock);
12311 * lpfc_intr_state_check - Check device state for interrupt handling
12312 * @phba: Pointer to HBA context.
12314 * This inline routine checks whether a device or its PCI slot is in a state
12315 * that the interrupt should be handled.
12317 * This function returns 0 if the device or the PCI slot is in a state that
12318 * interrupt should be handled, otherwise -EIO.
12321 lpfc_intr_state_check(struct lpfc_hba *phba)
12323 /* If the pci channel is offline, ignore all the interrupts */
12324 if (unlikely(pci_channel_offline(phba->pcidev)))
12327 /* Update device level interrupt statistics */
12328 phba->sli.slistat.sli_intr++;
12330 /* Ignore all interrupts during initialization. */
12331 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
12338 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
12339 * @irq: Interrupt number.
12340 * @dev_id: The device context pointer.
12342 * This function is directly called from the PCI layer as an interrupt
12343 * service routine when device with SLI-3 interface spec is enabled with
12344 * MSI-X multi-message interrupt mode and there are slow-path events in
12345 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
12346 * interrupt mode, this function is called as part of the device-level
12347 * interrupt handler. When the PCI slot is in error recovery or the HBA
12348 * is undergoing initialization, the interrupt handler will not process
12349 * the interrupt. The link attention and ELS ring attention events are
12350 * handled by the worker thread. The interrupt handler signals the worker
12351 * thread and returns for these events. This function is called without
12352 * any lock held. It gets the hbalock to access and update SLI data
12355 * This function returns IRQ_HANDLED when interrupt is handled else it
12356 * returns IRQ_NONE.
12359 lpfc_sli_sp_intr_handler(int irq, void *dev_id)
12361 struct lpfc_hba *phba;
12362 uint32_t ha_copy, hc_copy;
12363 uint32_t work_ha_copy;
12364 unsigned long status;
12365 unsigned long iflag;
12368 MAILBOX_t *mbox, *pmbox;
12369 struct lpfc_vport *vport;
12370 struct lpfc_nodelist *ndlp;
12371 struct lpfc_dmabuf *mp;
12376 * Get the driver's phba structure from the dev_id and
12377 * assume the HBA is not interrupting.
12379 phba = (struct lpfc_hba *)dev_id;
12381 if (unlikely(!phba))
12385 * Stuff needs to be attented to when this function is invoked as an
12386 * individual interrupt handler in MSI-X multi-message interrupt mode
12388 if (phba->intr_type == MSIX) {
12389 /* Check device state for handling interrupt */
12390 if (lpfc_intr_state_check(phba))
12392 /* Need to read HA REG for slow-path events */
12393 spin_lock_irqsave(&phba->hbalock, iflag);
12394 if (lpfc_readl(phba->HAregaddr, &ha_copy))
12396 /* If somebody is waiting to handle an eratt don't process it
12397 * here. The brdkill function will do this.
12399 if (phba->link_flag & LS_IGNORE_ERATT)
12400 ha_copy &= ~HA_ERATT;
12401 /* Check the need for handling ERATT in interrupt handler */
12402 if (ha_copy & HA_ERATT) {
12403 if (phba->hba_flag & HBA_ERATT_HANDLED)
12404 /* ERATT polling has handled ERATT */
12405 ha_copy &= ~HA_ERATT;
12407 /* Indicate interrupt handler handles ERATT */
12408 phba->hba_flag |= HBA_ERATT_HANDLED;
12412 * If there is deferred error attention, do not check for any
12415 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
12416 spin_unlock_irqrestore(&phba->hbalock, iflag);
12420 /* Clear up only attention source related to slow-path */
12421 if (lpfc_readl(phba->HCregaddr, &hc_copy))
12424 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
12425 HC_LAINT_ENA | HC_ERINT_ENA),
12427 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
12429 writel(hc_copy, phba->HCregaddr);
12430 readl(phba->HAregaddr); /* flush */
12431 spin_unlock_irqrestore(&phba->hbalock, iflag);
12433 ha_copy = phba->ha_copy;
12435 work_ha_copy = ha_copy & phba->work_ha_mask;
12437 if (work_ha_copy) {
12438 if (work_ha_copy & HA_LATT) {
12439 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
12441 * Turn off Link Attention interrupts
12442 * until CLEAR_LA done
12444 spin_lock_irqsave(&phba->hbalock, iflag);
12445 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
12446 if (lpfc_readl(phba->HCregaddr, &control))
12448 control &= ~HC_LAINT_ENA;
12449 writel(control, phba->HCregaddr);
12450 readl(phba->HCregaddr); /* flush */
12451 spin_unlock_irqrestore(&phba->hbalock, iflag);
12454 work_ha_copy &= ~HA_LATT;
12457 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
12459 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
12460 * the only slow ring.
12462 status = (work_ha_copy &
12463 (HA_RXMASK << (4*LPFC_ELS_RING)));
12464 status >>= (4*LPFC_ELS_RING);
12465 if (status & HA_RXMASK) {
12466 spin_lock_irqsave(&phba->hbalock, iflag);
12467 if (lpfc_readl(phba->HCregaddr, &control))
12470 lpfc_debugfs_slow_ring_trc(phba,
12471 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
12473 (uint32_t)phba->sli.slistat.sli_intr);
12475 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
12476 lpfc_debugfs_slow_ring_trc(phba,
12477 "ISR Disable ring:"
12478 "pwork:x%x hawork:x%x wait:x%x",
12479 phba->work_ha, work_ha_copy,
12480 (uint32_t)((unsigned long)
12481 &phba->work_waitq));
12484 ~(HC_R0INT_ENA << LPFC_ELS_RING);
12485 writel(control, phba->HCregaddr);
12486 readl(phba->HCregaddr); /* flush */
12489 lpfc_debugfs_slow_ring_trc(phba,
12490 "ISR slow ring: pwork:"
12491 "x%x hawork:x%x wait:x%x",
12492 phba->work_ha, work_ha_copy,
12493 (uint32_t)((unsigned long)
12494 &phba->work_waitq));
12496 spin_unlock_irqrestore(&phba->hbalock, iflag);
12499 spin_lock_irqsave(&phba->hbalock, iflag);
12500 if (work_ha_copy & HA_ERATT) {
12501 if (lpfc_sli_read_hs(phba))
12504 * Check if there is a deferred error condition
12507 if ((HS_FFER1 & phba->work_hs) &&
12508 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
12509 HS_FFER6 | HS_FFER7 | HS_FFER8) &
12511 phba->hba_flag |= DEFER_ERATT;
12512 /* Clear all interrupt enable conditions */
12513 writel(0, phba->HCregaddr);
12514 readl(phba->HCregaddr);
12518 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
12519 pmb = phba->sli.mbox_active;
12520 pmbox = &pmb->u.mb;
12522 vport = pmb->vport;
12524 /* First check out the status word */
12525 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
12526 if (pmbox->mbxOwner != OWN_HOST) {
12527 spin_unlock_irqrestore(&phba->hbalock, iflag);
12529 * Stray Mailbox Interrupt, mbxCommand <cmd>
12530 * mbxStatus <status>
12532 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
12534 "(%d):0304 Stray Mailbox "
12535 "Interrupt mbxCommand x%x "
12537 (vport ? vport->vpi : 0),
12540 /* clear mailbox attention bit */
12541 work_ha_copy &= ~HA_MBATT;
12543 phba->sli.mbox_active = NULL;
12544 spin_unlock_irqrestore(&phba->hbalock, iflag);
12545 phba->last_completion_time = jiffies;
12546 del_timer(&phba->sli.mbox_tmo);
12547 if (pmb->mbox_cmpl) {
12548 lpfc_sli_pcimem_bcopy(mbox, pmbox,
12550 if (pmb->out_ext_byte_len &&
12552 lpfc_sli_pcimem_bcopy(
12555 pmb->out_ext_byte_len);
12557 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
12558 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
12560 lpfc_debugfs_disc_trc(vport,
12561 LPFC_DISC_TRC_MBOX_VPORT,
12562 "MBOX dflt rpi: : "
12563 "status:x%x rpi:x%x",
12564 (uint32_t)pmbox->mbxStatus,
12565 pmbox->un.varWords[0], 0);
12567 if (!pmbox->mbxStatus) {
12568 mp = (struct lpfc_dmabuf *)
12570 ndlp = (struct lpfc_nodelist *)
12573 /* Reg_LOGIN of dflt RPI was
12574 * successful. new lets get
12575 * rid of the RPI using the
12576 * same mbox buffer.
12578 lpfc_unreg_login(phba,
12580 pmbox->un.varWords[0],
12583 lpfc_mbx_cmpl_dflt_rpi;
12585 pmb->ctx_ndlp = ndlp;
12586 pmb->vport = vport;
12587 rc = lpfc_sli_issue_mbox(phba,
12590 if (rc != MBX_BUSY)
12591 lpfc_printf_log(phba,
12593 LOG_MBOX | LOG_SLI,
12594 "0350 rc should have"
12595 "been MBX_BUSY\n");
12596 if (rc != MBX_NOT_FINISHED)
12597 goto send_current_mbox;
12601 &phba->pport->work_port_lock,
12603 phba->pport->work_port_events &=
12605 spin_unlock_irqrestore(
12606 &phba->pport->work_port_lock,
12608 lpfc_mbox_cmpl_put(phba, pmb);
12611 spin_unlock_irqrestore(&phba->hbalock, iflag);
12613 if ((work_ha_copy & HA_MBATT) &&
12614 (phba->sli.mbox_active == NULL)) {
12616 /* Process next mailbox command if there is one */
12618 rc = lpfc_sli_issue_mbox(phba, NULL,
12620 } while (rc == MBX_NOT_FINISHED);
12621 if (rc != MBX_SUCCESS)
12622 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
12623 LOG_SLI, "0349 rc should be "
12627 spin_lock_irqsave(&phba->hbalock, iflag);
12628 phba->work_ha |= work_ha_copy;
12629 spin_unlock_irqrestore(&phba->hbalock, iflag);
12630 lpfc_worker_wake_up(phba);
12632 return IRQ_HANDLED;
12634 spin_unlock_irqrestore(&phba->hbalock, iflag);
12635 return IRQ_HANDLED;
12637 } /* lpfc_sli_sp_intr_handler */
12640 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
12641 * @irq: Interrupt number.
12642 * @dev_id: The device context pointer.
12644 * This function is directly called from the PCI layer as an interrupt
12645 * service routine when device with SLI-3 interface spec is enabled with
12646 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
12647 * ring event in the HBA. However, when the device is enabled with either
12648 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
12649 * device-level interrupt handler. When the PCI slot is in error recovery
12650 * or the HBA is undergoing initialization, the interrupt handler will not
12651 * process the interrupt. The SCSI FCP fast-path ring event are handled in
12652 * the intrrupt context. This function is called without any lock held.
12653 * It gets the hbalock to access and update SLI data structures.
12655 * This function returns IRQ_HANDLED when interrupt is handled else it
12656 * returns IRQ_NONE.
12659 lpfc_sli_fp_intr_handler(int irq, void *dev_id)
12661 struct lpfc_hba *phba;
12663 unsigned long status;
12664 unsigned long iflag;
12665 struct lpfc_sli_ring *pring;
12667 /* Get the driver's phba structure from the dev_id and
12668 * assume the HBA is not interrupting.
12670 phba = (struct lpfc_hba *) dev_id;
12672 if (unlikely(!phba))
12676 * Stuff needs to be attented to when this function is invoked as an
12677 * individual interrupt handler in MSI-X multi-message interrupt mode
12679 if (phba->intr_type == MSIX) {
12680 /* Check device state for handling interrupt */
12681 if (lpfc_intr_state_check(phba))
12683 /* Need to read HA REG for FCP ring and other ring events */
12684 if (lpfc_readl(phba->HAregaddr, &ha_copy))
12685 return IRQ_HANDLED;
12686 /* Clear up only attention source related to fast-path */
12687 spin_lock_irqsave(&phba->hbalock, iflag);
12689 * If there is deferred error attention, do not check for
12692 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
12693 spin_unlock_irqrestore(&phba->hbalock, iflag);
12696 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
12698 readl(phba->HAregaddr); /* flush */
12699 spin_unlock_irqrestore(&phba->hbalock, iflag);
12701 ha_copy = phba->ha_copy;
12704 * Process all events on FCP ring. Take the optimized path for FCP IO.
12706 ha_copy &= ~(phba->work_ha_mask);
12708 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
12709 status >>= (4*LPFC_FCP_RING);
12710 pring = &phba->sli.sli3_ring[LPFC_FCP_RING];
12711 if (status & HA_RXMASK)
12712 lpfc_sli_handle_fast_ring_event(phba, pring, status);
12714 if (phba->cfg_multi_ring_support == 2) {
12716 * Process all events on extra ring. Take the optimized path
12717 * for extra ring IO.
12719 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
12720 status >>= (4*LPFC_EXTRA_RING);
12721 if (status & HA_RXMASK) {
12722 lpfc_sli_handle_fast_ring_event(phba,
12723 &phba->sli.sli3_ring[LPFC_EXTRA_RING],
12727 return IRQ_HANDLED;
12728 } /* lpfc_sli_fp_intr_handler */
12731 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
12732 * @irq: Interrupt number.
12733 * @dev_id: The device context pointer.
12735 * This function is the HBA device-level interrupt handler to device with
12736 * SLI-3 interface spec, called from the PCI layer when either MSI or
12737 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
12738 * requires driver attention. This function invokes the slow-path interrupt
12739 * attention handling function and fast-path interrupt attention handling
12740 * function in turn to process the relevant HBA attention events. This
12741 * function is called without any lock held. It gets the hbalock to access
12742 * and update SLI data structures.
12744 * This function returns IRQ_HANDLED when interrupt is handled, else it
12745 * returns IRQ_NONE.
12748 lpfc_sli_intr_handler(int irq, void *dev_id)
12750 struct lpfc_hba *phba;
12751 irqreturn_t sp_irq_rc, fp_irq_rc;
12752 unsigned long status1, status2;
12756 * Get the driver's phba structure from the dev_id and
12757 * assume the HBA is not interrupting.
12759 phba = (struct lpfc_hba *) dev_id;
12761 if (unlikely(!phba))
12764 /* Check device state for handling interrupt */
12765 if (lpfc_intr_state_check(phba))
12768 spin_lock(&phba->hbalock);
12769 if (lpfc_readl(phba->HAregaddr, &phba->ha_copy)) {
12770 spin_unlock(&phba->hbalock);
12771 return IRQ_HANDLED;
12774 if (unlikely(!phba->ha_copy)) {
12775 spin_unlock(&phba->hbalock);
12777 } else if (phba->ha_copy & HA_ERATT) {
12778 if (phba->hba_flag & HBA_ERATT_HANDLED)
12779 /* ERATT polling has handled ERATT */
12780 phba->ha_copy &= ~HA_ERATT;
12782 /* Indicate interrupt handler handles ERATT */
12783 phba->hba_flag |= HBA_ERATT_HANDLED;
12787 * If there is deferred error attention, do not check for any interrupt.
12789 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
12790 spin_unlock(&phba->hbalock);
12794 /* Clear attention sources except link and error attentions */
12795 if (lpfc_readl(phba->HCregaddr, &hc_copy)) {
12796 spin_unlock(&phba->hbalock);
12797 return IRQ_HANDLED;
12799 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
12800 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
12802 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
12803 writel(hc_copy, phba->HCregaddr);
12804 readl(phba->HAregaddr); /* flush */
12805 spin_unlock(&phba->hbalock);
12808 * Invokes slow-path host attention interrupt handling as appropriate.
12811 /* status of events with mailbox and link attention */
12812 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
12814 /* status of events with ELS ring */
12815 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
12816 status2 >>= (4*LPFC_ELS_RING);
12818 if (status1 || (status2 & HA_RXMASK))
12819 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
12821 sp_irq_rc = IRQ_NONE;
12824 * Invoke fast-path host attention interrupt handling as appropriate.
12827 /* status of events with FCP ring */
12828 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
12829 status1 >>= (4*LPFC_FCP_RING);
12831 /* status of events with extra ring */
12832 if (phba->cfg_multi_ring_support == 2) {
12833 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
12834 status2 >>= (4*LPFC_EXTRA_RING);
12838 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
12839 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
12841 fp_irq_rc = IRQ_NONE;
12843 /* Return device-level interrupt handling status */
12844 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
12845 } /* lpfc_sli_intr_handler */
12848 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
12849 * @phba: pointer to lpfc hba data structure.
12851 * This routine is invoked by the worker thread to process all the pending
12852 * SLI4 els abort xri events.
12854 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
12856 struct lpfc_cq_event *cq_event;
12858 /* First, declare the els xri abort event has been handled */
12859 spin_lock_irq(&phba->hbalock);
12860 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
12861 spin_unlock_irq(&phba->hbalock);
12862 /* Now, handle all the els xri abort events */
12863 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
12864 /* Get the first event from the head of the event queue */
12865 spin_lock_irq(&phba->hbalock);
12866 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
12867 cq_event, struct lpfc_cq_event, list);
12868 spin_unlock_irq(&phba->hbalock);
12869 /* Notify aborted XRI for ELS work queue */
12870 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
12871 /* Free the event processed back to the free pool */
12872 lpfc_sli4_cq_event_release(phba, cq_event);
12877 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
12878 * @phba: pointer to lpfc hba data structure
12879 * @pIocbIn: pointer to the rspiocbq
12880 * @pIocbOut: pointer to the cmdiocbq
12881 * @wcqe: pointer to the complete wcqe
12883 * This routine transfers the fields of a command iocbq to a response iocbq
12884 * by copying all the IOCB fields from command iocbq and transferring the
12885 * completion status information from the complete wcqe.
12888 lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
12889 struct lpfc_iocbq *pIocbIn,
12890 struct lpfc_iocbq *pIocbOut,
12891 struct lpfc_wcqe_complete *wcqe)
12894 unsigned long iflags;
12895 uint32_t status, max_response;
12896 struct lpfc_dmabuf *dmabuf;
12897 struct ulp_bde64 *bpl, bde;
12898 size_t offset = offsetof(struct lpfc_iocbq, iocb);
12900 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
12901 sizeof(struct lpfc_iocbq) - offset);
12902 /* Map WCQE parameters into irspiocb parameters */
12903 status = bf_get(lpfc_wcqe_c_status, wcqe);
12904 pIocbIn->iocb.ulpStatus = (status & LPFC_IOCB_STATUS_MASK);
12905 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
12906 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
12907 pIocbIn->iocb.un.fcpi.fcpi_parm =
12908 pIocbOut->iocb.un.fcpi.fcpi_parm -
12909 wcqe->total_data_placed;
12911 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
12913 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
12914 switch (pIocbOut->iocb.ulpCommand) {
12915 case CMD_ELS_REQUEST64_CR:
12916 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
12917 bpl = (struct ulp_bde64 *)dmabuf->virt;
12918 bde.tus.w = le32_to_cpu(bpl[1].tus.w);
12919 max_response = bde.tus.f.bdeSize;
12921 case CMD_GEN_REQUEST64_CR:
12923 if (!pIocbOut->context3)
12925 numBdes = pIocbOut->iocb.un.genreq64.bdl.bdeSize/
12926 sizeof(struct ulp_bde64);
12927 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
12928 bpl = (struct ulp_bde64 *)dmabuf->virt;
12929 for (i = 0; i < numBdes; i++) {
12930 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
12931 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
12932 max_response += bde.tus.f.bdeSize;
12936 max_response = wcqe->total_data_placed;
12939 if (max_response < wcqe->total_data_placed)
12940 pIocbIn->iocb.un.genreq64.bdl.bdeSize = max_response;
12942 pIocbIn->iocb.un.genreq64.bdl.bdeSize =
12943 wcqe->total_data_placed;
12946 /* Convert BG errors for completion status */
12947 if (status == CQE_STATUS_DI_ERROR) {
12948 pIocbIn->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
12950 if (bf_get(lpfc_wcqe_c_bg_edir, wcqe))
12951 pIocbIn->iocb.un.ulpWord[4] = IOERR_RX_DMA_FAILED;
12953 pIocbIn->iocb.un.ulpWord[4] = IOERR_TX_DMA_FAILED;
12955 pIocbIn->iocb.unsli3.sli3_bg.bgstat = 0;
12956 if (bf_get(lpfc_wcqe_c_bg_ge, wcqe)) /* Guard Check failed */
12957 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12958 BGS_GUARD_ERR_MASK;
12959 if (bf_get(lpfc_wcqe_c_bg_ae, wcqe)) /* App Tag Check failed */
12960 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12961 BGS_APPTAG_ERR_MASK;
12962 if (bf_get(lpfc_wcqe_c_bg_re, wcqe)) /* Ref Tag Check failed */
12963 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12964 BGS_REFTAG_ERR_MASK;
12966 /* Check to see if there was any good data before the error */
12967 if (bf_get(lpfc_wcqe_c_bg_tdpv, wcqe)) {
12968 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12969 BGS_HI_WATER_MARK_PRESENT_MASK;
12970 pIocbIn->iocb.unsli3.sli3_bg.bghm =
12971 wcqe->total_data_placed;
12975 * Set ALL the error bits to indicate we don't know what
12976 * type of error it is.
12978 if (!pIocbIn->iocb.unsli3.sli3_bg.bgstat)
12979 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12980 (BGS_REFTAG_ERR_MASK | BGS_APPTAG_ERR_MASK |
12981 BGS_GUARD_ERR_MASK);
12984 /* Pick up HBA exchange busy condition */
12985 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
12986 spin_lock_irqsave(&phba->hbalock, iflags);
12987 pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY;
12988 spin_unlock_irqrestore(&phba->hbalock, iflags);
12993 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
12994 * @phba: Pointer to HBA context object.
12995 * @wcqe: Pointer to work-queue completion queue entry.
12997 * This routine handles an ELS work-queue completion event and construct
12998 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
12999 * discovery engine to handle.
13001 * Return: Pointer to the receive IOCBQ, NULL otherwise.
13003 static struct lpfc_iocbq *
13004 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
13005 struct lpfc_iocbq *irspiocbq)
13007 struct lpfc_sli_ring *pring;
13008 struct lpfc_iocbq *cmdiocbq;
13009 struct lpfc_wcqe_complete *wcqe;
13010 unsigned long iflags;
13012 pring = lpfc_phba_elsring(phba);
13013 if (unlikely(!pring))
13016 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
13017 pring->stats.iocb_event++;
13018 /* Look up the ELS command IOCB and create pseudo response IOCB */
13019 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
13020 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13021 if (unlikely(!cmdiocbq)) {
13022 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13023 "0386 ELS complete with no corresponding "
13024 "cmdiocb: 0x%x 0x%x 0x%x 0x%x\n",
13025 wcqe->word0, wcqe->total_data_placed,
13026 wcqe->parameter, wcqe->word3);
13027 lpfc_sli_release_iocbq(phba, irspiocbq);
13031 spin_lock_irqsave(&pring->ring_lock, iflags);
13032 /* Put the iocb back on the txcmplq */
13033 lpfc_sli_ringtxcmpl_put(phba, pring, cmdiocbq);
13034 spin_unlock_irqrestore(&pring->ring_lock, iflags);
13036 /* Fake the irspiocbq and copy necessary response information */
13037 lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe);
13042 inline struct lpfc_cq_event *
13043 lpfc_cq_event_setup(struct lpfc_hba *phba, void *entry, int size)
13045 struct lpfc_cq_event *cq_event;
13047 /* Allocate a new internal CQ_EVENT entry */
13048 cq_event = lpfc_sli4_cq_event_alloc(phba);
13050 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13051 "0602 Failed to alloc CQ_EVENT entry\n");
13055 /* Move the CQE into the event */
13056 memcpy(&cq_event->cqe, entry, size);
13061 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
13062 * @phba: Pointer to HBA context object.
13063 * @cqe: Pointer to mailbox completion queue entry.
13065 * This routine process a mailbox completion queue entry with asynchrous
13068 * Return: true if work posted to worker thread, otherwise false.
13071 lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
13073 struct lpfc_cq_event *cq_event;
13074 unsigned long iflags;
13076 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
13077 "0392 Async Event: word0:x%x, word1:x%x, "
13078 "word2:x%x, word3:x%x\n", mcqe->word0,
13079 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
13081 cq_event = lpfc_cq_event_setup(phba, mcqe, sizeof(struct lpfc_mcqe));
13084 spin_lock_irqsave(&phba->hbalock, iflags);
13085 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
13086 /* Set the async event flag */
13087 phba->hba_flag |= ASYNC_EVENT;
13088 spin_unlock_irqrestore(&phba->hbalock, iflags);
13094 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
13095 * @phba: Pointer to HBA context object.
13096 * @cqe: Pointer to mailbox completion queue entry.
13098 * This routine process a mailbox completion queue entry with mailbox
13099 * completion event.
13101 * Return: true if work posted to worker thread, otherwise false.
13104 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
13106 uint32_t mcqe_status;
13107 MAILBOX_t *mbox, *pmbox;
13108 struct lpfc_mqe *mqe;
13109 struct lpfc_vport *vport;
13110 struct lpfc_nodelist *ndlp;
13111 struct lpfc_dmabuf *mp;
13112 unsigned long iflags;
13114 bool workposted = false;
13117 /* If not a mailbox complete MCQE, out by checking mailbox consume */
13118 if (!bf_get(lpfc_trailer_completed, mcqe))
13119 goto out_no_mqe_complete;
13121 /* Get the reference to the active mbox command */
13122 spin_lock_irqsave(&phba->hbalock, iflags);
13123 pmb = phba->sli.mbox_active;
13124 if (unlikely(!pmb)) {
13125 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
13126 "1832 No pending MBOX command to handle\n");
13127 spin_unlock_irqrestore(&phba->hbalock, iflags);
13128 goto out_no_mqe_complete;
13130 spin_unlock_irqrestore(&phba->hbalock, iflags);
13132 pmbox = (MAILBOX_t *)&pmb->u.mqe;
13134 vport = pmb->vport;
13136 /* Reset heartbeat timer */
13137 phba->last_completion_time = jiffies;
13138 del_timer(&phba->sli.mbox_tmo);
13140 /* Move mbox data to caller's mailbox region, do endian swapping */
13141 if (pmb->mbox_cmpl && mbox)
13142 lpfc_sli4_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
13145 * For mcqe errors, conditionally move a modified error code to
13146 * the mbox so that the error will not be missed.
13148 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
13149 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
13150 if (bf_get(lpfc_mqe_status, mqe) == MBX_SUCCESS)
13151 bf_set(lpfc_mqe_status, mqe,
13152 (LPFC_MBX_ERROR_RANGE | mcqe_status));
13154 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
13155 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
13156 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
13157 "MBOX dflt rpi: status:x%x rpi:x%x",
13159 pmbox->un.varWords[0], 0);
13160 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
13161 mp = (struct lpfc_dmabuf *)(pmb->ctx_buf);
13162 ndlp = (struct lpfc_nodelist *)pmb->ctx_ndlp;
13163 /* Reg_LOGIN of dflt RPI was successful. Now lets get
13164 * RID of the PPI using the same mbox buffer.
13166 lpfc_unreg_login(phba, vport->vpi,
13167 pmbox->un.varWords[0], pmb);
13168 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
13170 pmb->ctx_ndlp = ndlp;
13171 pmb->vport = vport;
13172 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
13173 if (rc != MBX_BUSY)
13174 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
13175 LOG_SLI, "0385 rc should "
13176 "have been MBX_BUSY\n");
13177 if (rc != MBX_NOT_FINISHED)
13178 goto send_current_mbox;
13181 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
13182 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
13183 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
13185 /* There is mailbox completion work to do */
13186 spin_lock_irqsave(&phba->hbalock, iflags);
13187 __lpfc_mbox_cmpl_put(phba, pmb);
13188 phba->work_ha |= HA_MBATT;
13189 spin_unlock_irqrestore(&phba->hbalock, iflags);
13193 spin_lock_irqsave(&phba->hbalock, iflags);
13194 /* Release the mailbox command posting token */
13195 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
13196 /* Setting active mailbox pointer need to be in sync to flag clear */
13197 phba->sli.mbox_active = NULL;
13198 if (bf_get(lpfc_trailer_consumed, mcqe))
13199 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
13200 spin_unlock_irqrestore(&phba->hbalock, iflags);
13201 /* Wake up worker thread to post the next pending mailbox command */
13202 lpfc_worker_wake_up(phba);
13205 out_no_mqe_complete:
13206 spin_lock_irqsave(&phba->hbalock, iflags);
13207 if (bf_get(lpfc_trailer_consumed, mcqe))
13208 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
13209 spin_unlock_irqrestore(&phba->hbalock, iflags);
13214 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
13215 * @phba: Pointer to HBA context object.
13216 * @cqe: Pointer to mailbox completion queue entry.
13218 * This routine process a mailbox completion queue entry, it invokes the
13219 * proper mailbox complete handling or asynchrous event handling routine
13220 * according to the MCQE's async bit.
13222 * Return: true if work posted to worker thread, otherwise false.
13225 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13226 struct lpfc_cqe *cqe)
13228 struct lpfc_mcqe mcqe;
13233 /* Copy the mailbox MCQE and convert endian order as needed */
13234 lpfc_sli4_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
13236 /* Invoke the proper event handling routine */
13237 if (!bf_get(lpfc_trailer_async, &mcqe))
13238 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
13240 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
13245 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
13246 * @phba: Pointer to HBA context object.
13247 * @cq: Pointer to associated CQ
13248 * @wcqe: Pointer to work-queue completion queue entry.
13250 * This routine handles an ELS work-queue completion event.
13252 * Return: true if work posted to worker thread, otherwise false.
13255 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13256 struct lpfc_wcqe_complete *wcqe)
13258 struct lpfc_iocbq *irspiocbq;
13259 unsigned long iflags;
13260 struct lpfc_sli_ring *pring = cq->pring;
13262 int txcmplq_cnt = 0;
13264 /* Check for response status */
13265 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
13266 /* Log the error status */
13267 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
13268 "0357 ELS CQE error: status=x%x: "
13269 "CQE: %08x %08x %08x %08x\n",
13270 bf_get(lpfc_wcqe_c_status, wcqe),
13271 wcqe->word0, wcqe->total_data_placed,
13272 wcqe->parameter, wcqe->word3);
13275 /* Get an irspiocbq for later ELS response processing use */
13276 irspiocbq = lpfc_sli_get_iocbq(phba);
13278 if (!list_empty(&pring->txq))
13280 if (!list_empty(&pring->txcmplq))
13282 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13283 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
13284 "els_txcmplq_cnt=%d\n",
13285 txq_cnt, phba->iocb_cnt,
13290 /* Save off the slow-path queue event for work thread to process */
13291 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
13292 spin_lock_irqsave(&phba->hbalock, iflags);
13293 list_add_tail(&irspiocbq->cq_event.list,
13294 &phba->sli4_hba.sp_queue_event);
13295 phba->hba_flag |= HBA_SP_QUEUE_EVT;
13296 spin_unlock_irqrestore(&phba->hbalock, iflags);
13302 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
13303 * @phba: Pointer to HBA context object.
13304 * @wcqe: Pointer to work-queue completion queue entry.
13306 * This routine handles slow-path WQ entry consumed event by invoking the
13307 * proper WQ release routine to the slow-path WQ.
13310 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
13311 struct lpfc_wcqe_release *wcqe)
13313 /* sanity check on queue memory */
13314 if (unlikely(!phba->sli4_hba.els_wq))
13316 /* Check for the slow-path ELS work queue */
13317 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
13318 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
13319 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
13321 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13322 "2579 Slow-path wqe consume event carries "
13323 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
13324 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
13325 phba->sli4_hba.els_wq->queue_id);
13329 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
13330 * @phba: Pointer to HBA context object.
13331 * @cq: Pointer to a WQ completion queue.
13332 * @wcqe: Pointer to work-queue completion queue entry.
13334 * This routine handles an XRI abort event.
13336 * Return: true if work posted to worker thread, otherwise false.
13339 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
13340 struct lpfc_queue *cq,
13341 struct sli4_wcqe_xri_aborted *wcqe)
13343 bool workposted = false;
13344 struct lpfc_cq_event *cq_event;
13345 unsigned long iflags;
13347 switch (cq->subtype) {
13349 lpfc_sli4_io_xri_aborted(phba, wcqe, cq->hdwq);
13350 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13351 /* Notify aborted XRI for NVME work queue */
13352 if (phba->nvmet_support)
13353 lpfc_sli4_nvmet_xri_aborted(phba, wcqe);
13355 workposted = false;
13357 case LPFC_NVME_LS: /* NVME LS uses ELS resources */
13359 cq_event = lpfc_cq_event_setup(
13360 phba, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
13363 cq_event->hdwq = cq->hdwq;
13364 spin_lock_irqsave(&phba->hbalock, iflags);
13365 list_add_tail(&cq_event->list,
13366 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
13367 /* Set the els xri abort event flag */
13368 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
13369 spin_unlock_irqrestore(&phba->hbalock, iflags);
13373 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13374 "0603 Invalid CQ subtype %d: "
13375 "%08x %08x %08x %08x\n",
13376 cq->subtype, wcqe->word0, wcqe->parameter,
13377 wcqe->word2, wcqe->word3);
13378 workposted = false;
13384 #define FC_RCTL_MDS_DIAGS 0xF4
13387 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
13388 * @phba: Pointer to HBA context object.
13389 * @rcqe: Pointer to receive-queue completion queue entry.
13391 * This routine process a receive-queue completion queue entry.
13393 * Return: true if work posted to worker thread, otherwise false.
13396 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
13398 bool workposted = false;
13399 struct fc_frame_header *fc_hdr;
13400 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
13401 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
13402 struct lpfc_nvmet_tgtport *tgtp;
13403 struct hbq_dmabuf *dma_buf;
13404 uint32_t status, rq_id;
13405 unsigned long iflags;
13407 /* sanity check on queue memory */
13408 if (unlikely(!hrq) || unlikely(!drq))
13411 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
13412 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
13414 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
13415 if (rq_id != hrq->queue_id)
13418 status = bf_get(lpfc_rcqe_status, rcqe);
13420 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
13421 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13422 "2537 Receive Frame Truncated!!\n");
13424 case FC_STATUS_RQ_SUCCESS:
13425 spin_lock_irqsave(&phba->hbalock, iflags);
13426 lpfc_sli4_rq_release(hrq, drq);
13427 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
13429 hrq->RQ_no_buf_found++;
13430 spin_unlock_irqrestore(&phba->hbalock, iflags);
13434 hrq->RQ_buf_posted--;
13435 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
13437 fc_hdr = (struct fc_frame_header *)dma_buf->hbuf.virt;
13439 if (fc_hdr->fh_r_ctl == FC_RCTL_MDS_DIAGS ||
13440 fc_hdr->fh_r_ctl == FC_RCTL_DD_UNSOL_DATA) {
13441 spin_unlock_irqrestore(&phba->hbalock, iflags);
13442 /* Handle MDS Loopback frames */
13443 lpfc_sli4_handle_mds_loopback(phba->pport, dma_buf);
13447 /* save off the frame for the work thread to process */
13448 list_add_tail(&dma_buf->cq_event.list,
13449 &phba->sli4_hba.sp_queue_event);
13450 /* Frame received */
13451 phba->hba_flag |= HBA_SP_QUEUE_EVT;
13452 spin_unlock_irqrestore(&phba->hbalock, iflags);
13455 case FC_STATUS_INSUFF_BUF_FRM_DISC:
13456 if (phba->nvmet_support) {
13457 tgtp = phba->targetport->private;
13458 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_NVME,
13459 "6402 RQE Error x%x, posted %d err_cnt "
13461 status, hrq->RQ_buf_posted,
13462 hrq->RQ_no_posted_buf,
13463 atomic_read(&tgtp->rcv_fcp_cmd_in),
13464 atomic_read(&tgtp->rcv_fcp_cmd_out),
13465 atomic_read(&tgtp->xmt_fcp_release));
13469 case FC_STATUS_INSUFF_BUF_NEED_BUF:
13470 hrq->RQ_no_posted_buf++;
13471 /* Post more buffers if possible */
13472 spin_lock_irqsave(&phba->hbalock, iflags);
13473 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
13474 spin_unlock_irqrestore(&phba->hbalock, iflags);
13483 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
13484 * @phba: Pointer to HBA context object.
13485 * @cq: Pointer to the completion queue.
13486 * @cqe: Pointer to a completion queue entry.
13488 * This routine process a slow-path work-queue or receive queue completion queue
13491 * Return: true if work posted to worker thread, otherwise false.
13494 lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13495 struct lpfc_cqe *cqe)
13497 struct lpfc_cqe cqevt;
13498 bool workposted = false;
13500 /* Copy the work queue CQE and convert endian order if needed */
13501 lpfc_sli4_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
13503 /* Check and process for different type of WCQE and dispatch */
13504 switch (bf_get(lpfc_cqe_code, &cqevt)) {
13505 case CQE_CODE_COMPL_WQE:
13506 /* Process the WQ/RQ complete event */
13507 phba->last_completion_time = jiffies;
13508 workposted = lpfc_sli4_sp_handle_els_wcqe(phba, cq,
13509 (struct lpfc_wcqe_complete *)&cqevt);
13511 case CQE_CODE_RELEASE_WQE:
13512 /* Process the WQ release event */
13513 lpfc_sli4_sp_handle_rel_wcqe(phba,
13514 (struct lpfc_wcqe_release *)&cqevt);
13516 case CQE_CODE_XRI_ABORTED:
13517 /* Process the WQ XRI abort event */
13518 phba->last_completion_time = jiffies;
13519 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
13520 (struct sli4_wcqe_xri_aborted *)&cqevt);
13522 case CQE_CODE_RECEIVE:
13523 case CQE_CODE_RECEIVE_V1:
13524 /* Process the RQ event */
13525 phba->last_completion_time = jiffies;
13526 workposted = lpfc_sli4_sp_handle_rcqe(phba,
13527 (struct lpfc_rcqe *)&cqevt);
13530 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13531 "0388 Not a valid WCQE code: x%x\n",
13532 bf_get(lpfc_cqe_code, &cqevt));
13539 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
13540 * @phba: Pointer to HBA context object.
13541 * @eqe: Pointer to fast-path event queue entry.
13543 * This routine process a event queue entry from the slow-path event queue.
13544 * It will check the MajorCode and MinorCode to determine this is for a
13545 * completion event on a completion queue, if not, an error shall be logged
13546 * and just return. Otherwise, it will get to the corresponding completion
13547 * queue and process all the entries on that completion queue, rearm the
13548 * completion queue, and then return.
13552 lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
13553 struct lpfc_queue *speq)
13555 struct lpfc_queue *cq = NULL, *childq;
13558 /* Get the reference to the corresponding CQ */
13559 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
13561 list_for_each_entry(childq, &speq->child_list, list) {
13562 if (childq->queue_id == cqid) {
13567 if (unlikely(!cq)) {
13568 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
13569 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13570 "0365 Slow-path CQ identifier "
13571 "(%d) does not exist\n", cqid);
13575 /* Save EQ associated with this CQ */
13576 cq->assoc_qp = speq;
13578 if (!queue_work_on(cq->chann, phba->wq, &cq->spwork))
13579 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13580 "0390 Cannot schedule soft IRQ "
13581 "for CQ eqcqid=%d, cqid=%d on CPU %d\n",
13582 cqid, cq->queue_id, raw_smp_processor_id());
13586 * __lpfc_sli4_process_cq - Process elements of a CQ
13587 * @phba: Pointer to HBA context object.
13588 * @cq: Pointer to CQ to be processed
13589 * @handler: Routine to process each cqe
13590 * @delay: Pointer to usdelay to set in case of rescheduling of the handler
13592 * This routine processes completion queue entries in a CQ. While a valid
13593 * queue element is found, the handler is called. During processing checks
13594 * are made for periodic doorbell writes to let the hardware know of
13595 * element consumption.
13597 * If the max limit on cqes to process is hit, or there are no more valid
13598 * entries, the loop stops. If we processed a sufficient number of elements,
13599 * meaning there is sufficient load, rather than rearming and generating
13600 * another interrupt, a cq rescheduling delay will be set. A delay of 0
13601 * indicates no rescheduling.
13603 * Returns True if work scheduled, False otherwise.
13606 __lpfc_sli4_process_cq(struct lpfc_hba *phba, struct lpfc_queue *cq,
13607 bool (*handler)(struct lpfc_hba *, struct lpfc_queue *,
13608 struct lpfc_cqe *), unsigned long *delay)
13610 struct lpfc_cqe *cqe;
13611 bool workposted = false;
13612 int count = 0, consumed = 0;
13615 /* default - no reschedule */
13618 if (cmpxchg(&cq->queue_claimed, 0, 1) != 0)
13619 goto rearm_and_exit;
13621 /* Process all the entries to the CQ */
13623 cqe = lpfc_sli4_cq_get(cq);
13625 workposted |= handler(phba, cq, cqe);
13626 __lpfc_sli4_consume_cqe(phba, cq, cqe);
13629 if (!(++count % cq->max_proc_limit))
13632 if (!(count % cq->notify_interval)) {
13633 phba->sli4_hba.sli4_write_cq_db(phba, cq, consumed,
13638 if (count == LPFC_NVMET_CQ_NOTIFY)
13639 cq->q_flag |= HBA_NVMET_CQ_NOTIFY;
13641 cqe = lpfc_sli4_cq_get(cq);
13643 if (count >= phba->cfg_cq_poll_threshold) {
13648 /* Track the max number of CQEs processed in 1 EQ */
13649 if (count > cq->CQ_max_cqe)
13650 cq->CQ_max_cqe = count;
13652 cq->assoc_qp->EQ_cqe_cnt += count;
13654 /* Catch the no cq entry condition */
13655 if (unlikely(count == 0))
13656 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
13657 "0369 No entry from completion queue "
13658 "qid=%d\n", cq->queue_id);
13660 cq->queue_claimed = 0;
13663 phba->sli4_hba.sli4_write_cq_db(phba, cq, consumed,
13664 arm ? LPFC_QUEUE_REARM : LPFC_QUEUE_NOARM);
13670 * lpfc_sli4_sp_process_cq - Process a slow-path event queue entry
13671 * @cq: pointer to CQ to process
13673 * This routine calls the cq processing routine with a handler specific
13674 * to the type of queue bound to it.
13676 * The CQ routine returns two values: the first is the calling status,
13677 * which indicates whether work was queued to the background discovery
13678 * thread. If true, the routine should wakeup the discovery thread;
13679 * the second is the delay parameter. If non-zero, rather than rearming
13680 * the CQ and yet another interrupt, the CQ handler should be queued so
13681 * that it is processed in a subsequent polling action. The value of
13682 * the delay indicates when to reschedule it.
13685 __lpfc_sli4_sp_process_cq(struct lpfc_queue *cq)
13687 struct lpfc_hba *phba = cq->phba;
13688 unsigned long delay;
13689 bool workposted = false;
13691 /* Process and rearm the CQ */
13692 switch (cq->type) {
13694 workposted |= __lpfc_sli4_process_cq(phba, cq,
13695 lpfc_sli4_sp_handle_mcqe,
13699 if (cq->subtype == LPFC_IO)
13700 workposted |= __lpfc_sli4_process_cq(phba, cq,
13701 lpfc_sli4_fp_handle_cqe,
13704 workposted |= __lpfc_sli4_process_cq(phba, cq,
13705 lpfc_sli4_sp_handle_cqe,
13709 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13710 "0370 Invalid completion queue type (%d)\n",
13716 if (!queue_delayed_work_on(cq->chann, phba->wq,
13717 &cq->sched_spwork, delay))
13718 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13719 "0394 Cannot schedule soft IRQ "
13720 "for cqid=%d on CPU %d\n",
13721 cq->queue_id, cq->chann);
13724 /* wake up worker thread if there are works to be done */
13726 lpfc_worker_wake_up(phba);
13730 * lpfc_sli4_sp_process_cq - slow-path work handler when started by
13732 * @work: pointer to work element
13734 * translates from the work handler and calls the slow-path handler.
13737 lpfc_sli4_sp_process_cq(struct work_struct *work)
13739 struct lpfc_queue *cq = container_of(work, struct lpfc_queue, spwork);
13741 __lpfc_sli4_sp_process_cq(cq);
13745 * lpfc_sli4_dly_sp_process_cq - slow-path work handler when started by timer
13746 * @work: pointer to work element
13748 * translates from the work handler and calls the slow-path handler.
13751 lpfc_sli4_dly_sp_process_cq(struct work_struct *work)
13753 struct lpfc_queue *cq = container_of(to_delayed_work(work),
13754 struct lpfc_queue, sched_spwork);
13756 __lpfc_sli4_sp_process_cq(cq);
13760 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
13761 * @phba: Pointer to HBA context object.
13762 * @cq: Pointer to associated CQ
13763 * @wcqe: Pointer to work-queue completion queue entry.
13765 * This routine process a fast-path work queue completion entry from fast-path
13766 * event queue for FCP command response completion.
13769 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13770 struct lpfc_wcqe_complete *wcqe)
13772 struct lpfc_sli_ring *pring = cq->pring;
13773 struct lpfc_iocbq *cmdiocbq;
13774 struct lpfc_iocbq irspiocbq;
13775 unsigned long iflags;
13777 /* Check for response status */
13778 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
13779 /* If resource errors reported from HBA, reduce queue
13780 * depth of the SCSI device.
13782 if (((bf_get(lpfc_wcqe_c_status, wcqe) ==
13783 IOSTAT_LOCAL_REJECT)) &&
13784 ((wcqe->parameter & IOERR_PARAM_MASK) ==
13785 IOERR_NO_RESOURCES))
13786 phba->lpfc_rampdown_queue_depth(phba);
13788 /* Log the error status */
13789 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
13790 "0373 FCP CQE error: status=x%x: "
13791 "CQE: %08x %08x %08x %08x\n",
13792 bf_get(lpfc_wcqe_c_status, wcqe),
13793 wcqe->word0, wcqe->total_data_placed,
13794 wcqe->parameter, wcqe->word3);
13797 /* Look up the FCP command IOCB and create pseudo response IOCB */
13798 spin_lock_irqsave(&pring->ring_lock, iflags);
13799 pring->stats.iocb_event++;
13800 spin_unlock_irqrestore(&pring->ring_lock, iflags);
13801 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
13802 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13803 if (unlikely(!cmdiocbq)) {
13804 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13805 "0374 FCP complete with no corresponding "
13806 "cmdiocb: iotag (%d)\n",
13807 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13810 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
13811 cmdiocbq->isr_timestamp = cq->isr_timestamp;
13813 if (cmdiocbq->iocb_cmpl == NULL) {
13814 if (cmdiocbq->wqe_cmpl) {
13815 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
13816 spin_lock_irqsave(&phba->hbalock, iflags);
13817 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
13818 spin_unlock_irqrestore(&phba->hbalock, iflags);
13821 /* Pass the cmd_iocb and the wcqe to the upper layer */
13822 (cmdiocbq->wqe_cmpl)(phba, cmdiocbq, wcqe);
13825 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13826 "0375 FCP cmdiocb not callback function "
13828 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13832 /* Fake the irspiocb and copy necessary response information */
13833 lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
13835 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
13836 spin_lock_irqsave(&phba->hbalock, iflags);
13837 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
13838 spin_unlock_irqrestore(&phba->hbalock, iflags);
13841 /* Pass the cmd_iocb and the rsp state to the upper layer */
13842 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
13846 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
13847 * @phba: Pointer to HBA context object.
13848 * @cq: Pointer to completion queue.
13849 * @wcqe: Pointer to work-queue completion queue entry.
13851 * This routine handles an fast-path WQ entry consumed event by invoking the
13852 * proper WQ release routine to the slow-path WQ.
13855 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13856 struct lpfc_wcqe_release *wcqe)
13858 struct lpfc_queue *childwq;
13859 bool wqid_matched = false;
13862 /* Check for fast-path FCP work queue release */
13863 hba_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
13864 list_for_each_entry(childwq, &cq->child_list, list) {
13865 if (childwq->queue_id == hba_wqid) {
13866 lpfc_sli4_wq_release(childwq,
13867 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
13868 if (childwq->q_flag & HBA_NVMET_WQFULL)
13869 lpfc_nvmet_wqfull_process(phba, childwq);
13870 wqid_matched = true;
13874 /* Report warning log message if no match found */
13875 if (wqid_matched != true)
13876 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13877 "2580 Fast-path wqe consume event carries "
13878 "miss-matched qid: wcqe-qid=x%x\n", hba_wqid);
13882 * lpfc_sli4_nvmet_handle_rcqe - Process a receive-queue completion queue entry
13883 * @phba: Pointer to HBA context object.
13884 * @rcqe: Pointer to receive-queue completion queue entry.
13886 * This routine process a receive-queue completion queue entry.
13888 * Return: true if work posted to worker thread, otherwise false.
13891 lpfc_sli4_nvmet_handle_rcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13892 struct lpfc_rcqe *rcqe)
13894 bool workposted = false;
13895 struct lpfc_queue *hrq;
13896 struct lpfc_queue *drq;
13897 struct rqb_dmabuf *dma_buf;
13898 struct fc_frame_header *fc_hdr;
13899 struct lpfc_nvmet_tgtport *tgtp;
13900 uint32_t status, rq_id;
13901 unsigned long iflags;
13902 uint32_t fctl, idx;
13904 if ((phba->nvmet_support == 0) ||
13905 (phba->sli4_hba.nvmet_cqset == NULL))
13908 idx = cq->queue_id - phba->sli4_hba.nvmet_cqset[0]->queue_id;
13909 hrq = phba->sli4_hba.nvmet_mrq_hdr[idx];
13910 drq = phba->sli4_hba.nvmet_mrq_data[idx];
13912 /* sanity check on queue memory */
13913 if (unlikely(!hrq) || unlikely(!drq))
13916 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
13917 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
13919 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
13921 if ((phba->nvmet_support == 0) ||
13922 (rq_id != hrq->queue_id))
13925 status = bf_get(lpfc_rcqe_status, rcqe);
13927 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
13928 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13929 "6126 Receive Frame Truncated!!\n");
13931 case FC_STATUS_RQ_SUCCESS:
13932 spin_lock_irqsave(&phba->hbalock, iflags);
13933 lpfc_sli4_rq_release(hrq, drq);
13934 dma_buf = lpfc_sli_rqbuf_get(phba, hrq);
13936 hrq->RQ_no_buf_found++;
13937 spin_unlock_irqrestore(&phba->hbalock, iflags);
13940 spin_unlock_irqrestore(&phba->hbalock, iflags);
13942 hrq->RQ_buf_posted--;
13943 fc_hdr = (struct fc_frame_header *)dma_buf->hbuf.virt;
13945 /* Just some basic sanity checks on FCP Command frame */
13946 fctl = (fc_hdr->fh_f_ctl[0] << 16 |
13947 fc_hdr->fh_f_ctl[1] << 8 |
13948 fc_hdr->fh_f_ctl[2]);
13950 (FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT)) !=
13951 (FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT)) ||
13952 (fc_hdr->fh_seq_cnt != 0)) /* 0 byte swapped is still 0 */
13955 if (fc_hdr->fh_type == FC_TYPE_FCP) {
13956 dma_buf->bytes_recv = bf_get(lpfc_rcqe_length, rcqe);
13957 lpfc_nvmet_unsol_fcp_event(
13958 phba, idx, dma_buf, cq->isr_timestamp,
13959 cq->q_flag & HBA_NVMET_CQ_NOTIFY);
13963 lpfc_rq_buf_free(phba, &dma_buf->hbuf);
13965 case FC_STATUS_INSUFF_BUF_FRM_DISC:
13966 if (phba->nvmet_support) {
13967 tgtp = phba->targetport->private;
13968 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_NVME,
13969 "6401 RQE Error x%x, posted %d err_cnt "
13971 status, hrq->RQ_buf_posted,
13972 hrq->RQ_no_posted_buf,
13973 atomic_read(&tgtp->rcv_fcp_cmd_in),
13974 atomic_read(&tgtp->rcv_fcp_cmd_out),
13975 atomic_read(&tgtp->xmt_fcp_release));
13979 case FC_STATUS_INSUFF_BUF_NEED_BUF:
13980 hrq->RQ_no_posted_buf++;
13981 /* Post more buffers if possible */
13989 * lpfc_sli4_fp_handle_cqe - Process fast-path work queue completion entry
13990 * @phba: adapter with cq
13991 * @cq: Pointer to the completion queue.
13992 * @eqe: Pointer to fast-path completion queue entry.
13994 * This routine process a fast-path work queue completion entry from fast-path
13995 * event queue for FCP command response completion.
13997 * Return: true if work posted to worker thread, otherwise false.
14000 lpfc_sli4_fp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
14001 struct lpfc_cqe *cqe)
14003 struct lpfc_wcqe_release wcqe;
14004 bool workposted = false;
14006 /* Copy the work queue CQE and convert endian order if needed */
14007 lpfc_sli4_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
14009 /* Check and process for different type of WCQE and dispatch */
14010 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
14011 case CQE_CODE_COMPL_WQE:
14012 case CQE_CODE_NVME_ERSP:
14014 /* Process the WQ complete event */
14015 phba->last_completion_time = jiffies;
14016 if (cq->subtype == LPFC_IO || cq->subtype == LPFC_NVME_LS)
14017 lpfc_sli4_fp_handle_fcp_wcqe(phba, cq,
14018 (struct lpfc_wcqe_complete *)&wcqe);
14020 case CQE_CODE_RELEASE_WQE:
14021 cq->CQ_release_wqe++;
14022 /* Process the WQ release event */
14023 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
14024 (struct lpfc_wcqe_release *)&wcqe);
14026 case CQE_CODE_XRI_ABORTED:
14027 cq->CQ_xri_aborted++;
14028 /* Process the WQ XRI abort event */
14029 phba->last_completion_time = jiffies;
14030 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
14031 (struct sli4_wcqe_xri_aborted *)&wcqe);
14033 case CQE_CODE_RECEIVE_V1:
14034 case CQE_CODE_RECEIVE:
14035 phba->last_completion_time = jiffies;
14036 if (cq->subtype == LPFC_NVMET) {
14037 workposted = lpfc_sli4_nvmet_handle_rcqe(
14038 phba, cq, (struct lpfc_rcqe *)&wcqe);
14042 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14043 "0144 Not a valid CQE code: x%x\n",
14044 bf_get(lpfc_wcqe_c_code, &wcqe));
14051 * lpfc_sli4_hba_handle_eqe - Process a fast-path event queue entry
14052 * @phba: Pointer to HBA context object.
14053 * @eqe: Pointer to fast-path event queue entry.
14055 * This routine process a event queue entry from the fast-path event queue.
14056 * It will check the MajorCode and MinorCode to determine this is for a
14057 * completion event on a completion queue, if not, an error shall be logged
14058 * and just return. Otherwise, it will get to the corresponding completion
14059 * queue and process all the entries on the completion queue, rearm the
14060 * completion queue, and then return.
14063 lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba, struct lpfc_queue *eq,
14064 struct lpfc_eqe *eqe)
14066 struct lpfc_queue *cq = NULL;
14067 uint32_t qidx = eq->hdwq;
14070 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
14071 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14072 "0366 Not a valid completion "
14073 "event: majorcode=x%x, minorcode=x%x\n",
14074 bf_get_le32(lpfc_eqe_major_code, eqe),
14075 bf_get_le32(lpfc_eqe_minor_code, eqe));
14079 /* Get the reference to the corresponding CQ */
14080 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
14082 /* Use the fast lookup method first */
14083 if (cqid <= phba->sli4_hba.cq_max) {
14084 cq = phba->sli4_hba.cq_lookup[cqid];
14089 /* Next check for NVMET completion */
14090 if (phba->cfg_nvmet_mrq && phba->sli4_hba.nvmet_cqset) {
14091 id = phba->sli4_hba.nvmet_cqset[0]->queue_id;
14092 if ((cqid >= id) && (cqid < (id + phba->cfg_nvmet_mrq))) {
14093 /* Process NVMET unsol rcv */
14094 cq = phba->sli4_hba.nvmet_cqset[cqid - id];
14099 if (phba->sli4_hba.nvmels_cq &&
14100 (cqid == phba->sli4_hba.nvmels_cq->queue_id)) {
14101 /* Process NVME unsol rcv */
14102 cq = phba->sli4_hba.nvmels_cq;
14105 /* Otherwise this is a Slow path event */
14107 lpfc_sli4_sp_handle_eqe(phba, eqe,
14108 phba->sli4_hba.hdwq[qidx].hba_eq);
14113 if (unlikely(cqid != cq->queue_id)) {
14114 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14115 "0368 Miss-matched fast-path completion "
14116 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
14117 cqid, cq->queue_id);
14122 #if defined(CONFIG_SCSI_LPFC_DEBUG_FS)
14123 if (phba->ktime_on)
14124 cq->isr_timestamp = ktime_get_ns();
14126 cq->isr_timestamp = 0;
14128 if (!queue_work_on(cq->chann, phba->wq, &cq->irqwork))
14129 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14130 "0363 Cannot schedule soft IRQ "
14131 "for CQ eqcqid=%d, cqid=%d on CPU %d\n",
14132 cqid, cq->queue_id, raw_smp_processor_id());
14136 * __lpfc_sli4_hba_process_cq - Process a fast-path event queue entry
14137 * @cq: Pointer to CQ to be processed
14139 * This routine calls the cq processing routine with the handler for
14142 * The CQ routine returns two values: the first is the calling status,
14143 * which indicates whether work was queued to the background discovery
14144 * thread. If true, the routine should wakeup the discovery thread;
14145 * the second is the delay parameter. If non-zero, rather than rearming
14146 * the CQ and yet another interrupt, the CQ handler should be queued so
14147 * that it is processed in a subsequent polling action. The value of
14148 * the delay indicates when to reschedule it.
14151 __lpfc_sli4_hba_process_cq(struct lpfc_queue *cq)
14153 struct lpfc_hba *phba = cq->phba;
14154 unsigned long delay;
14155 bool workposted = false;
14157 /* process and rearm the CQ */
14158 workposted |= __lpfc_sli4_process_cq(phba, cq, lpfc_sli4_fp_handle_cqe,
14162 if (!queue_delayed_work_on(cq->chann, phba->wq,
14163 &cq->sched_irqwork, delay))
14164 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14165 "0367 Cannot schedule soft IRQ "
14166 "for cqid=%d on CPU %d\n",
14167 cq->queue_id, cq->chann);
14170 /* wake up worker thread if there are works to be done */
14172 lpfc_worker_wake_up(phba);
14176 * lpfc_sli4_hba_process_cq - fast-path work handler when started by
14178 * @work: pointer to work element
14180 * translates from the work handler and calls the fast-path handler.
14183 lpfc_sli4_hba_process_cq(struct work_struct *work)
14185 struct lpfc_queue *cq = container_of(work, struct lpfc_queue, irqwork);
14187 __lpfc_sli4_hba_process_cq(cq);
14191 * lpfc_sli4_hba_process_cq - fast-path work handler when started by timer
14192 * @work: pointer to work element
14194 * translates from the work handler and calls the fast-path handler.
14197 lpfc_sli4_dly_hba_process_cq(struct work_struct *work)
14199 struct lpfc_queue *cq = container_of(to_delayed_work(work),
14200 struct lpfc_queue, sched_irqwork);
14202 __lpfc_sli4_hba_process_cq(cq);
14206 * lpfc_sli4_hba_intr_handler - HBA interrupt handler to SLI-4 device
14207 * @irq: Interrupt number.
14208 * @dev_id: The device context pointer.
14210 * This function is directly called from the PCI layer as an interrupt
14211 * service routine when device with SLI-4 interface spec is enabled with
14212 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
14213 * ring event in the HBA. However, when the device is enabled with either
14214 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
14215 * device-level interrupt handler. When the PCI slot is in error recovery
14216 * or the HBA is undergoing initialization, the interrupt handler will not
14217 * process the interrupt. The SCSI FCP fast-path ring event are handled in
14218 * the intrrupt context. This function is called without any lock held.
14219 * It gets the hbalock to access and update SLI data structures. Note that,
14220 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
14221 * equal to that of FCP CQ index.
14223 * The link attention and ELS ring attention events are handled
14224 * by the worker thread. The interrupt handler signals the worker thread
14225 * and returns for these events. This function is called without any lock
14226 * held. It gets the hbalock to access and update SLI data structures.
14228 * This function returns IRQ_HANDLED when interrupt is handled else it
14229 * returns IRQ_NONE.
14232 lpfc_sli4_hba_intr_handler(int irq, void *dev_id)
14234 struct lpfc_hba *phba;
14235 struct lpfc_hba_eq_hdl *hba_eq_hdl;
14236 struct lpfc_queue *fpeq;
14237 unsigned long iflag;
14240 struct lpfc_eq_intr_info *eqi;
14243 /* Get the driver's phba structure from the dev_id */
14244 hba_eq_hdl = (struct lpfc_hba_eq_hdl *)dev_id;
14245 phba = hba_eq_hdl->phba;
14246 hba_eqidx = hba_eq_hdl->idx;
14248 if (unlikely(!phba))
14250 if (unlikely(!phba->sli4_hba.hdwq))
14253 /* Get to the EQ struct associated with this vector */
14254 fpeq = phba->sli4_hba.hba_eq_hdl[hba_eqidx].eq;
14255 if (unlikely(!fpeq))
14258 /* Check device state for handling interrupt */
14259 if (unlikely(lpfc_intr_state_check(phba))) {
14260 /* Check again for link_state with lock held */
14261 spin_lock_irqsave(&phba->hbalock, iflag);
14262 if (phba->link_state < LPFC_LINK_DOWN)
14263 /* Flush, clear interrupt, and rearm the EQ */
14264 lpfc_sli4_eqcq_flush(phba, fpeq);
14265 spin_unlock_irqrestore(&phba->hbalock, iflag);
14269 eqi = phba->sli4_hba.eq_info;
14270 icnt = this_cpu_inc_return(eqi->icnt);
14271 fpeq->last_cpu = raw_smp_processor_id();
14273 if (icnt > LPFC_EQD_ISR_TRIGGER &&
14274 phba->cfg_irq_chann == 1 &&
14275 phba->cfg_auto_imax &&
14276 fpeq->q_mode != LPFC_MAX_AUTO_EQ_DELAY &&
14277 phba->sli.sli_flag & LPFC_SLI_USE_EQDR)
14278 lpfc_sli4_mod_hba_eq_delay(phba, fpeq, LPFC_MAX_AUTO_EQ_DELAY);
14280 /* process and rearm the EQ */
14281 ecount = lpfc_sli4_process_eq(phba, fpeq);
14283 if (unlikely(ecount == 0)) {
14284 fpeq->EQ_no_entry++;
14285 if (phba->intr_type == MSIX)
14286 /* MSI-X treated interrupt served as no EQ share INT */
14287 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
14288 "0358 MSI-X interrupt with no EQE\n");
14290 /* Non MSI-X treated on interrupt as EQ share INT */
14294 return IRQ_HANDLED;
14295 } /* lpfc_sli4_fp_intr_handler */
14298 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
14299 * @irq: Interrupt number.
14300 * @dev_id: The device context pointer.
14302 * This function is the device-level interrupt handler to device with SLI-4
14303 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
14304 * interrupt mode is enabled and there is an event in the HBA which requires
14305 * driver attention. This function invokes the slow-path interrupt attention
14306 * handling function and fast-path interrupt attention handling function in
14307 * turn to process the relevant HBA attention events. This function is called
14308 * without any lock held. It gets the hbalock to access and update SLI data
14311 * This function returns IRQ_HANDLED when interrupt is handled, else it
14312 * returns IRQ_NONE.
14315 lpfc_sli4_intr_handler(int irq, void *dev_id)
14317 struct lpfc_hba *phba;
14318 irqreturn_t hba_irq_rc;
14319 bool hba_handled = false;
14322 /* Get the driver's phba structure from the dev_id */
14323 phba = (struct lpfc_hba *)dev_id;
14325 if (unlikely(!phba))
14329 * Invoke fast-path host attention interrupt handling as appropriate.
14331 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
14332 hba_irq_rc = lpfc_sli4_hba_intr_handler(irq,
14333 &phba->sli4_hba.hba_eq_hdl[qidx]);
14334 if (hba_irq_rc == IRQ_HANDLED)
14335 hba_handled |= true;
14338 return (hba_handled == true) ? IRQ_HANDLED : IRQ_NONE;
14339 } /* lpfc_sli4_intr_handler */
14342 * lpfc_sli4_queue_free - free a queue structure and associated memory
14343 * @queue: The queue structure to free.
14345 * This function frees a queue structure and the DMAable memory used for
14346 * the host resident queue. This function must be called after destroying the
14347 * queue on the HBA.
14350 lpfc_sli4_queue_free(struct lpfc_queue *queue)
14352 struct lpfc_dmabuf *dmabuf;
14357 if (!list_empty(&queue->wq_list))
14358 list_del(&queue->wq_list);
14360 while (!list_empty(&queue->page_list)) {
14361 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
14363 dma_free_coherent(&queue->phba->pcidev->dev, queue->page_size,
14364 dmabuf->virt, dmabuf->phys);
14368 lpfc_free_rq_buffer(queue->phba, queue);
14369 kfree(queue->rqbp);
14372 if (!list_empty(&queue->cpu_list))
14373 list_del(&queue->cpu_list);
14380 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
14381 * @phba: The HBA that this queue is being created on.
14382 * @page_size: The size of a queue page
14383 * @entry_size: The size of each queue entry for this queue.
14384 * @entry count: The number of entries that this queue will handle.
14385 * @cpu: The cpu that will primarily utilize this queue.
14387 * This function allocates a queue structure and the DMAable memory used for
14388 * the host resident queue. This function must be called before creating the
14389 * queue on the HBA.
14391 struct lpfc_queue *
14392 lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t page_size,
14393 uint32_t entry_size, uint32_t entry_count, int cpu)
14395 struct lpfc_queue *queue;
14396 struct lpfc_dmabuf *dmabuf;
14397 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
14400 if (!phba->sli4_hba.pc_sli4_params.supported)
14401 hw_page_size = page_size;
14403 pgcnt = ALIGN(entry_size * entry_count, hw_page_size) / hw_page_size;
14405 /* If needed, Adjust page count to match the max the adapter supports */
14406 if (pgcnt > phba->sli4_hba.pc_sli4_params.wqpcnt)
14407 pgcnt = phba->sli4_hba.pc_sli4_params.wqpcnt;
14409 queue = kzalloc_node(sizeof(*queue) + (sizeof(void *) * pgcnt),
14410 GFP_KERNEL, cpu_to_node(cpu));
14414 INIT_LIST_HEAD(&queue->list);
14415 INIT_LIST_HEAD(&queue->wq_list);
14416 INIT_LIST_HEAD(&queue->wqfull_list);
14417 INIT_LIST_HEAD(&queue->page_list);
14418 INIT_LIST_HEAD(&queue->child_list);
14419 INIT_LIST_HEAD(&queue->cpu_list);
14421 /* Set queue parameters now. If the system cannot provide memory
14422 * resources, the free routine needs to know what was allocated.
14424 queue->page_count = pgcnt;
14425 queue->q_pgs = (void **)&queue[1];
14426 queue->entry_cnt_per_pg = hw_page_size / entry_size;
14427 queue->entry_size = entry_size;
14428 queue->entry_count = entry_count;
14429 queue->page_size = hw_page_size;
14430 queue->phba = phba;
14432 for (x = 0; x < queue->page_count; x++) {
14433 dmabuf = kzalloc_node(sizeof(*dmabuf), GFP_KERNEL,
14434 dev_to_node(&phba->pcidev->dev));
14437 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
14438 hw_page_size, &dmabuf->phys,
14440 if (!dmabuf->virt) {
14444 dmabuf->buffer_tag = x;
14445 list_add_tail(&dmabuf->list, &queue->page_list);
14446 /* use lpfc_sli4_qe to index a paritcular entry in this page */
14447 queue->q_pgs[x] = dmabuf->virt;
14449 INIT_WORK(&queue->irqwork, lpfc_sli4_hba_process_cq);
14450 INIT_WORK(&queue->spwork, lpfc_sli4_sp_process_cq);
14451 INIT_DELAYED_WORK(&queue->sched_irqwork, lpfc_sli4_dly_hba_process_cq);
14452 INIT_DELAYED_WORK(&queue->sched_spwork, lpfc_sli4_dly_sp_process_cq);
14454 /* notify_interval will be set during q creation */
14458 lpfc_sli4_queue_free(queue);
14463 * lpfc_dual_chute_pci_bar_map - Map pci base address register to host memory
14464 * @phba: HBA structure that indicates port to create a queue on.
14465 * @pci_barset: PCI BAR set flag.
14467 * This function shall perform iomap of the specified PCI BAR address to host
14468 * memory address if not already done so and return it. The returned host
14469 * memory address can be NULL.
14471 static void __iomem *
14472 lpfc_dual_chute_pci_bar_map(struct lpfc_hba *phba, uint16_t pci_barset)
14477 switch (pci_barset) {
14478 case WQ_PCI_BAR_0_AND_1:
14479 return phba->pci_bar0_memmap_p;
14480 case WQ_PCI_BAR_2_AND_3:
14481 return phba->pci_bar2_memmap_p;
14482 case WQ_PCI_BAR_4_AND_5:
14483 return phba->pci_bar4_memmap_p;
14491 * lpfc_modify_hba_eq_delay - Modify Delay Multiplier on EQs
14492 * @phba: HBA structure that EQs are on.
14493 * @startq: The starting EQ index to modify
14494 * @numq: The number of EQs (consecutive indexes) to modify
14495 * @usdelay: amount of delay
14497 * This function revises the EQ delay on 1 or more EQs. The EQ delay
14498 * is set either by writing to a register (if supported by the SLI Port)
14499 * or by mailbox command. The mailbox command allows several EQs to be
14502 * The @phba struct is used to send a mailbox command to HBA. The @startq
14503 * is used to get the starting EQ index to change. The @numq value is
14504 * used to specify how many consecutive EQ indexes, starting at EQ index,
14505 * are to be changed. This function is asynchronous and will wait for any
14506 * mailbox commands to finish before returning.
14508 * On success this function will return a zero. If unable to allocate
14509 * enough memory this function will return -ENOMEM. If a mailbox command
14510 * fails this function will return -ENXIO. Note: on ENXIO, some EQs may
14511 * have had their delay multipler changed.
14514 lpfc_modify_hba_eq_delay(struct lpfc_hba *phba, uint32_t startq,
14515 uint32_t numq, uint32_t usdelay)
14517 struct lpfc_mbx_modify_eq_delay *eq_delay;
14518 LPFC_MBOXQ_t *mbox;
14519 struct lpfc_queue *eq;
14520 int cnt = 0, rc, length;
14521 uint32_t shdr_status, shdr_add_status;
14524 union lpfc_sli4_cfg_shdr *shdr;
14526 if (startq >= phba->cfg_irq_chann)
14529 if (usdelay > 0xFFFF) {
14530 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP | LOG_NVME,
14531 "6429 usdelay %d too large. Scaled down to "
14532 "0xFFFF.\n", usdelay);
14536 /* set values by EQ_DELAY register if supported */
14537 if (phba->sli.sli_flag & LPFC_SLI_USE_EQDR) {
14538 for (qidx = startq; qidx < phba->cfg_irq_chann; qidx++) {
14539 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
14543 lpfc_sli4_mod_hba_eq_delay(phba, eq, usdelay);
14551 /* Otherwise, set values by mailbox cmd */
14553 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14555 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_FCP | LOG_NVME,
14556 "6428 Failed allocating mailbox cmd buffer."
14557 " EQ delay was not set.\n");
14560 length = (sizeof(struct lpfc_mbx_modify_eq_delay) -
14561 sizeof(struct lpfc_sli4_cfg_mhdr));
14562 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14563 LPFC_MBOX_OPCODE_MODIFY_EQ_DELAY,
14564 length, LPFC_SLI4_MBX_EMBED);
14565 eq_delay = &mbox->u.mqe.un.eq_delay;
14567 /* Calculate delay multiper from maximum interrupt per second */
14568 dmult = (usdelay * LPFC_DMULT_CONST) / LPFC_SEC_TO_USEC;
14571 if (dmult > LPFC_DMULT_MAX)
14572 dmult = LPFC_DMULT_MAX;
14574 for (qidx = startq; qidx < phba->cfg_irq_chann; qidx++) {
14575 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
14578 eq->q_mode = usdelay;
14579 eq_delay->u.request.eq[cnt].eq_id = eq->queue_id;
14580 eq_delay->u.request.eq[cnt].phase = 0;
14581 eq_delay->u.request.eq[cnt].delay_multi = dmult;
14586 eq_delay->u.request.num_eq = cnt;
14588 mbox->vport = phba->pport;
14589 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14590 mbox->ctx_buf = NULL;
14591 mbox->ctx_ndlp = NULL;
14592 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14593 shdr = (union lpfc_sli4_cfg_shdr *) &eq_delay->header.cfg_shdr;
14594 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14595 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14596 if (shdr_status || shdr_add_status || rc) {
14597 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14598 "2512 MODIFY_EQ_DELAY mailbox failed with "
14599 "status x%x add_status x%x, mbx status x%x\n",
14600 shdr_status, shdr_add_status, rc);
14602 mempool_free(mbox, phba->mbox_mem_pool);
14607 * lpfc_eq_create - Create an Event Queue on the HBA
14608 * @phba: HBA structure that indicates port to create a queue on.
14609 * @eq: The queue structure to use to create the event queue.
14610 * @imax: The maximum interrupt per second limit.
14612 * This function creates an event queue, as detailed in @eq, on a port,
14613 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
14615 * The @phba struct is used to send mailbox command to HBA. The @eq struct
14616 * is used to get the entry count and entry size that are necessary to
14617 * determine the number of pages to allocate and use for this queue. This
14618 * function will send the EQ_CREATE mailbox command to the HBA to setup the
14619 * event queue. This function is asynchronous and will wait for the mailbox
14620 * command to finish before continuing.
14622 * On success this function will return a zero. If unable to allocate enough
14623 * memory this function will return -ENOMEM. If the queue create mailbox command
14624 * fails this function will return -ENXIO.
14627 lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint32_t imax)
14629 struct lpfc_mbx_eq_create *eq_create;
14630 LPFC_MBOXQ_t *mbox;
14631 int rc, length, status = 0;
14632 struct lpfc_dmabuf *dmabuf;
14633 uint32_t shdr_status, shdr_add_status;
14634 union lpfc_sli4_cfg_shdr *shdr;
14636 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
14638 /* sanity check on queue memory */
14641 if (!phba->sli4_hba.pc_sli4_params.supported)
14642 hw_page_size = SLI4_PAGE_SIZE;
14644 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14647 length = (sizeof(struct lpfc_mbx_eq_create) -
14648 sizeof(struct lpfc_sli4_cfg_mhdr));
14649 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14650 LPFC_MBOX_OPCODE_EQ_CREATE,
14651 length, LPFC_SLI4_MBX_EMBED);
14652 eq_create = &mbox->u.mqe.un.eq_create;
14653 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
14654 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
14656 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
14658 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
14660 /* Use version 2 of CREATE_EQ if eqav is set */
14661 if (phba->sli4_hba.pc_sli4_params.eqav) {
14662 bf_set(lpfc_mbox_hdr_version, &shdr->request,
14663 LPFC_Q_CREATE_VERSION_2);
14664 bf_set(lpfc_eq_context_autovalid, &eq_create->u.request.context,
14665 phba->sli4_hba.pc_sli4_params.eqav);
14668 /* don't setup delay multiplier using EQ_CREATE */
14670 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
14672 switch (eq->entry_count) {
14674 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14675 "0360 Unsupported EQ count. (%d)\n",
14677 if (eq->entry_count < 256) {
14681 /* fall through - otherwise default to smallest count */
14683 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14687 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14691 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14695 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14699 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14703 list_for_each_entry(dmabuf, &eq->page_list, list) {
14704 memset(dmabuf->virt, 0, hw_page_size);
14705 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
14706 putPaddrLow(dmabuf->phys);
14707 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
14708 putPaddrHigh(dmabuf->phys);
14710 mbox->vport = phba->pport;
14711 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14712 mbox->ctx_buf = NULL;
14713 mbox->ctx_ndlp = NULL;
14714 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14715 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14716 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14717 if (shdr_status || shdr_add_status || rc) {
14718 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14719 "2500 EQ_CREATE mailbox failed with "
14720 "status x%x add_status x%x, mbx status x%x\n",
14721 shdr_status, shdr_add_status, rc);
14724 eq->type = LPFC_EQ;
14725 eq->subtype = LPFC_NONE;
14726 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
14727 if (eq->queue_id == 0xFFFF)
14729 eq->host_index = 0;
14730 eq->notify_interval = LPFC_EQ_NOTIFY_INTRVL;
14731 eq->max_proc_limit = LPFC_EQ_MAX_PROC_LIMIT;
14733 mempool_free(mbox, phba->mbox_mem_pool);
14738 * lpfc_cq_create - Create a Completion Queue on the HBA
14739 * @phba: HBA structure that indicates port to create a queue on.
14740 * @cq: The queue structure to use to create the completion queue.
14741 * @eq: The event queue to bind this completion queue to.
14743 * This function creates a completion queue, as detailed in @wq, on a port,
14744 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
14746 * The @phba struct is used to send mailbox command to HBA. The @cq struct
14747 * is used to get the entry count and entry size that are necessary to
14748 * determine the number of pages to allocate and use for this queue. The @eq
14749 * is used to indicate which event queue to bind this completion queue to. This
14750 * function will send the CQ_CREATE mailbox command to the HBA to setup the
14751 * completion queue. This function is asynchronous and will wait for the mailbox
14752 * command to finish before continuing.
14754 * On success this function will return a zero. If unable to allocate enough
14755 * memory this function will return -ENOMEM. If the queue create mailbox command
14756 * fails this function will return -ENXIO.
14759 lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
14760 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
14762 struct lpfc_mbx_cq_create *cq_create;
14763 struct lpfc_dmabuf *dmabuf;
14764 LPFC_MBOXQ_t *mbox;
14765 int rc, length, status = 0;
14766 uint32_t shdr_status, shdr_add_status;
14767 union lpfc_sli4_cfg_shdr *shdr;
14769 /* sanity check on queue memory */
14773 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14776 length = (sizeof(struct lpfc_mbx_cq_create) -
14777 sizeof(struct lpfc_sli4_cfg_mhdr));
14778 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14779 LPFC_MBOX_OPCODE_CQ_CREATE,
14780 length, LPFC_SLI4_MBX_EMBED);
14781 cq_create = &mbox->u.mqe.un.cq_create;
14782 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
14783 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
14785 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
14786 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
14787 bf_set(lpfc_mbox_hdr_version, &shdr->request,
14788 phba->sli4_hba.pc_sli4_params.cqv);
14789 if (phba->sli4_hba.pc_sli4_params.cqv == LPFC_Q_CREATE_VERSION_2) {
14790 bf_set(lpfc_mbx_cq_create_page_size, &cq_create->u.request,
14791 (cq->page_size / SLI4_PAGE_SIZE));
14792 bf_set(lpfc_cq_eq_id_2, &cq_create->u.request.context,
14794 bf_set(lpfc_cq_context_autovalid, &cq_create->u.request.context,
14795 phba->sli4_hba.pc_sli4_params.cqav);
14797 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context,
14800 switch (cq->entry_count) {
14803 if (phba->sli4_hba.pc_sli4_params.cqv ==
14804 LPFC_Q_CREATE_VERSION_2) {
14805 cq_create->u.request.context.lpfc_cq_context_count =
14807 bf_set(lpfc_cq_context_count,
14808 &cq_create->u.request.context,
14809 LPFC_CQ_CNT_WORD7);
14814 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14815 "0361 Unsupported CQ count: "
14816 "entry cnt %d sz %d pg cnt %d\n",
14817 cq->entry_count, cq->entry_size,
14819 if (cq->entry_count < 256) {
14823 /* fall through - otherwise default to smallest count */
14825 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
14829 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
14833 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
14837 list_for_each_entry(dmabuf, &cq->page_list, list) {
14838 memset(dmabuf->virt, 0, cq->page_size);
14839 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
14840 putPaddrLow(dmabuf->phys);
14841 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
14842 putPaddrHigh(dmabuf->phys);
14844 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14846 /* The IOCTL status is embedded in the mailbox subheader. */
14847 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14848 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14849 if (shdr_status || shdr_add_status || rc) {
14850 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14851 "2501 CQ_CREATE mailbox failed with "
14852 "status x%x add_status x%x, mbx status x%x\n",
14853 shdr_status, shdr_add_status, rc);
14857 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
14858 if (cq->queue_id == 0xFFFF) {
14862 /* link the cq onto the parent eq child list */
14863 list_add_tail(&cq->list, &eq->child_list);
14864 /* Set up completion queue's type and subtype */
14866 cq->subtype = subtype;
14867 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
14868 cq->assoc_qid = eq->queue_id;
14870 cq->host_index = 0;
14871 cq->notify_interval = LPFC_CQ_NOTIFY_INTRVL;
14872 cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit, cq->entry_count);
14874 if (cq->queue_id > phba->sli4_hba.cq_max)
14875 phba->sli4_hba.cq_max = cq->queue_id;
14877 mempool_free(mbox, phba->mbox_mem_pool);
14882 * lpfc_cq_create_set - Create a set of Completion Queues on the HBA for MRQ
14883 * @phba: HBA structure that indicates port to create a queue on.
14884 * @cqp: The queue structure array to use to create the completion queues.
14885 * @hdwq: The hardware queue array with the EQ to bind completion queues to.
14887 * This function creates a set of completion queue, s to support MRQ
14888 * as detailed in @cqp, on a port,
14889 * described by @phba by sending a CREATE_CQ_SET mailbox command to the HBA.
14891 * The @phba struct is used to send mailbox command to HBA. The @cq struct
14892 * is used to get the entry count and entry size that are necessary to
14893 * determine the number of pages to allocate and use for this queue. The @eq
14894 * is used to indicate which event queue to bind this completion queue to. This
14895 * function will send the CREATE_CQ_SET mailbox command to the HBA to setup the
14896 * completion queue. This function is asynchronous and will wait for the mailbox
14897 * command to finish before continuing.
14899 * On success this function will return a zero. If unable to allocate enough
14900 * memory this function will return -ENOMEM. If the queue create mailbox command
14901 * fails this function will return -ENXIO.
14904 lpfc_cq_create_set(struct lpfc_hba *phba, struct lpfc_queue **cqp,
14905 struct lpfc_sli4_hdw_queue *hdwq, uint32_t type,
14908 struct lpfc_queue *cq;
14909 struct lpfc_queue *eq;
14910 struct lpfc_mbx_cq_create_set *cq_set;
14911 struct lpfc_dmabuf *dmabuf;
14912 LPFC_MBOXQ_t *mbox;
14913 int rc, length, alloclen, status = 0;
14914 int cnt, idx, numcq, page_idx = 0;
14915 uint32_t shdr_status, shdr_add_status;
14916 union lpfc_sli4_cfg_shdr *shdr;
14917 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
14919 /* sanity check on queue memory */
14920 numcq = phba->cfg_nvmet_mrq;
14921 if (!cqp || !hdwq || !numcq)
14924 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14928 length = sizeof(struct lpfc_mbx_cq_create_set);
14929 length += ((numcq * cqp[0]->page_count) *
14930 sizeof(struct dma_address));
14931 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14932 LPFC_MBOX_OPCODE_FCOE_CQ_CREATE_SET, length,
14933 LPFC_SLI4_MBX_NEMBED);
14934 if (alloclen < length) {
14935 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14936 "3098 Allocated DMA memory size (%d) is "
14937 "less than the requested DMA memory size "
14938 "(%d)\n", alloclen, length);
14942 cq_set = mbox->sge_array->addr[0];
14943 shdr = (union lpfc_sli4_cfg_shdr *)&cq_set->cfg_shdr;
14944 bf_set(lpfc_mbox_hdr_version, &shdr->request, 0);
14946 for (idx = 0; idx < numcq; idx++) {
14948 eq = hdwq[idx].hba_eq;
14953 if (!phba->sli4_hba.pc_sli4_params.supported)
14954 hw_page_size = cq->page_size;
14958 bf_set(lpfc_mbx_cq_create_set_page_size,
14959 &cq_set->u.request,
14960 (hw_page_size / SLI4_PAGE_SIZE));
14961 bf_set(lpfc_mbx_cq_create_set_num_pages,
14962 &cq_set->u.request, cq->page_count);
14963 bf_set(lpfc_mbx_cq_create_set_evt,
14964 &cq_set->u.request, 1);
14965 bf_set(lpfc_mbx_cq_create_set_valid,
14966 &cq_set->u.request, 1);
14967 bf_set(lpfc_mbx_cq_create_set_cqe_size,
14968 &cq_set->u.request, 0);
14969 bf_set(lpfc_mbx_cq_create_set_num_cq,
14970 &cq_set->u.request, numcq);
14971 bf_set(lpfc_mbx_cq_create_set_autovalid,
14972 &cq_set->u.request,
14973 phba->sli4_hba.pc_sli4_params.cqav);
14974 switch (cq->entry_count) {
14977 if (phba->sli4_hba.pc_sli4_params.cqv ==
14978 LPFC_Q_CREATE_VERSION_2) {
14979 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
14980 &cq_set->u.request,
14982 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
14983 &cq_set->u.request,
14984 LPFC_CQ_CNT_WORD7);
14989 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14990 "3118 Bad CQ count. (%d)\n",
14992 if (cq->entry_count < 256) {
14996 /* fall through - otherwise default to smallest */
14998 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
14999 &cq_set->u.request, LPFC_CQ_CNT_256);
15002 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
15003 &cq_set->u.request, LPFC_CQ_CNT_512);
15006 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
15007 &cq_set->u.request, LPFC_CQ_CNT_1024);
15010 bf_set(lpfc_mbx_cq_create_set_eq_id0,
15011 &cq_set->u.request, eq->queue_id);
15014 bf_set(lpfc_mbx_cq_create_set_eq_id1,
15015 &cq_set->u.request, eq->queue_id);
15018 bf_set(lpfc_mbx_cq_create_set_eq_id2,
15019 &cq_set->u.request, eq->queue_id);
15022 bf_set(lpfc_mbx_cq_create_set_eq_id3,
15023 &cq_set->u.request, eq->queue_id);
15026 bf_set(lpfc_mbx_cq_create_set_eq_id4,
15027 &cq_set->u.request, eq->queue_id);
15030 bf_set(lpfc_mbx_cq_create_set_eq_id5,
15031 &cq_set->u.request, eq->queue_id);
15034 bf_set(lpfc_mbx_cq_create_set_eq_id6,
15035 &cq_set->u.request, eq->queue_id);
15038 bf_set(lpfc_mbx_cq_create_set_eq_id7,
15039 &cq_set->u.request, eq->queue_id);
15042 bf_set(lpfc_mbx_cq_create_set_eq_id8,
15043 &cq_set->u.request, eq->queue_id);
15046 bf_set(lpfc_mbx_cq_create_set_eq_id9,
15047 &cq_set->u.request, eq->queue_id);
15050 bf_set(lpfc_mbx_cq_create_set_eq_id10,
15051 &cq_set->u.request, eq->queue_id);
15054 bf_set(lpfc_mbx_cq_create_set_eq_id11,
15055 &cq_set->u.request, eq->queue_id);
15058 bf_set(lpfc_mbx_cq_create_set_eq_id12,
15059 &cq_set->u.request, eq->queue_id);
15062 bf_set(lpfc_mbx_cq_create_set_eq_id13,
15063 &cq_set->u.request, eq->queue_id);
15066 bf_set(lpfc_mbx_cq_create_set_eq_id14,
15067 &cq_set->u.request, eq->queue_id);
15070 bf_set(lpfc_mbx_cq_create_set_eq_id15,
15071 &cq_set->u.request, eq->queue_id);
15075 /* link the cq onto the parent eq child list */
15076 list_add_tail(&cq->list, &eq->child_list);
15077 /* Set up completion queue's type and subtype */
15079 cq->subtype = subtype;
15080 cq->assoc_qid = eq->queue_id;
15082 cq->host_index = 0;
15083 cq->notify_interval = LPFC_CQ_NOTIFY_INTRVL;
15084 cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit,
15089 list_for_each_entry(dmabuf, &cq->page_list, list) {
15090 memset(dmabuf->virt, 0, hw_page_size);
15091 cnt = page_idx + dmabuf->buffer_tag;
15092 cq_set->u.request.page[cnt].addr_lo =
15093 putPaddrLow(dmabuf->phys);
15094 cq_set->u.request.page[cnt].addr_hi =
15095 putPaddrHigh(dmabuf->phys);
15101 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15103 /* The IOCTL status is embedded in the mailbox subheader. */
15104 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15105 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15106 if (shdr_status || shdr_add_status || rc) {
15107 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15108 "3119 CQ_CREATE_SET mailbox failed with "
15109 "status x%x add_status x%x, mbx status x%x\n",
15110 shdr_status, shdr_add_status, rc);
15114 rc = bf_get(lpfc_mbx_cq_create_set_base_id, &cq_set->u.response);
15115 if (rc == 0xFFFF) {
15120 for (idx = 0; idx < numcq; idx++) {
15122 cq->queue_id = rc + idx;
15123 if (cq->queue_id > phba->sli4_hba.cq_max)
15124 phba->sli4_hba.cq_max = cq->queue_id;
15128 lpfc_sli4_mbox_cmd_free(phba, mbox);
15133 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
15134 * @phba: HBA structure that indicates port to create a queue on.
15135 * @mq: The queue structure to use to create the mailbox queue.
15136 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
15137 * @cq: The completion queue to associate with this cq.
15139 * This function provides failback (fb) functionality when the
15140 * mq_create_ext fails on older FW generations. It's purpose is identical
15141 * to mq_create_ext otherwise.
15143 * This routine cannot fail as all attributes were previously accessed and
15144 * initialized in mq_create_ext.
15147 lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq,
15148 LPFC_MBOXQ_t *mbox, struct lpfc_queue *cq)
15150 struct lpfc_mbx_mq_create *mq_create;
15151 struct lpfc_dmabuf *dmabuf;
15154 length = (sizeof(struct lpfc_mbx_mq_create) -
15155 sizeof(struct lpfc_sli4_cfg_mhdr));
15156 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
15157 LPFC_MBOX_OPCODE_MQ_CREATE,
15158 length, LPFC_SLI4_MBX_EMBED);
15159 mq_create = &mbox->u.mqe.un.mq_create;
15160 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
15162 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
15164 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
15165 switch (mq->entry_count) {
15167 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
15168 LPFC_MQ_RING_SIZE_16);
15171 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
15172 LPFC_MQ_RING_SIZE_32);
15175 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
15176 LPFC_MQ_RING_SIZE_64);
15179 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
15180 LPFC_MQ_RING_SIZE_128);
15183 list_for_each_entry(dmabuf, &mq->page_list, list) {
15184 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
15185 putPaddrLow(dmabuf->phys);
15186 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
15187 putPaddrHigh(dmabuf->phys);
15192 * lpfc_mq_create - Create a mailbox Queue on the HBA
15193 * @phba: HBA structure that indicates port to create a queue on.
15194 * @mq: The queue structure to use to create the mailbox queue.
15195 * @cq: The completion queue to associate with this cq.
15196 * @subtype: The queue's subtype.
15198 * This function creates a mailbox queue, as detailed in @mq, on a port,
15199 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
15201 * The @phba struct is used to send mailbox command to HBA. The @cq struct
15202 * is used to get the entry count and entry size that are necessary to
15203 * determine the number of pages to allocate and use for this queue. This
15204 * function will send the MQ_CREATE mailbox command to the HBA to setup the
15205 * mailbox queue. This function is asynchronous and will wait for the mailbox
15206 * command to finish before continuing.
15208 * On success this function will return a zero. If unable to allocate enough
15209 * memory this function will return -ENOMEM. If the queue create mailbox command
15210 * fails this function will return -ENXIO.
15213 lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
15214 struct lpfc_queue *cq, uint32_t subtype)
15216 struct lpfc_mbx_mq_create *mq_create;
15217 struct lpfc_mbx_mq_create_ext *mq_create_ext;
15218 struct lpfc_dmabuf *dmabuf;
15219 LPFC_MBOXQ_t *mbox;
15220 int rc, length, status = 0;
15221 uint32_t shdr_status, shdr_add_status;
15222 union lpfc_sli4_cfg_shdr *shdr;
15223 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15225 /* sanity check on queue memory */
15228 if (!phba->sli4_hba.pc_sli4_params.supported)
15229 hw_page_size = SLI4_PAGE_SIZE;
15231 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15234 length = (sizeof(struct lpfc_mbx_mq_create_ext) -
15235 sizeof(struct lpfc_sli4_cfg_mhdr));
15236 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
15237 LPFC_MBOX_OPCODE_MQ_CREATE_EXT,
15238 length, LPFC_SLI4_MBX_EMBED);
15240 mq_create_ext = &mbox->u.mqe.un.mq_create_ext;
15241 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr;
15242 bf_set(lpfc_mbx_mq_create_ext_num_pages,
15243 &mq_create_ext->u.request, mq->page_count);
15244 bf_set(lpfc_mbx_mq_create_ext_async_evt_link,
15245 &mq_create_ext->u.request, 1);
15246 bf_set(lpfc_mbx_mq_create_ext_async_evt_fip,
15247 &mq_create_ext->u.request, 1);
15248 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5,
15249 &mq_create_ext->u.request, 1);
15250 bf_set(lpfc_mbx_mq_create_ext_async_evt_fc,
15251 &mq_create_ext->u.request, 1);
15252 bf_set(lpfc_mbx_mq_create_ext_async_evt_sli,
15253 &mq_create_ext->u.request, 1);
15254 bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1);
15255 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15256 phba->sli4_hba.pc_sli4_params.mqv);
15257 if (phba->sli4_hba.pc_sli4_params.mqv == LPFC_Q_CREATE_VERSION_1)
15258 bf_set(lpfc_mbx_mq_create_ext_cq_id, &mq_create_ext->u.request,
15261 bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context,
15263 switch (mq->entry_count) {
15265 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15266 "0362 Unsupported MQ count. (%d)\n",
15268 if (mq->entry_count < 16) {
15272 /* fall through - otherwise default to smallest count */
15274 bf_set(lpfc_mq_context_ring_size,
15275 &mq_create_ext->u.request.context,
15276 LPFC_MQ_RING_SIZE_16);
15279 bf_set(lpfc_mq_context_ring_size,
15280 &mq_create_ext->u.request.context,
15281 LPFC_MQ_RING_SIZE_32);
15284 bf_set(lpfc_mq_context_ring_size,
15285 &mq_create_ext->u.request.context,
15286 LPFC_MQ_RING_SIZE_64);
15289 bf_set(lpfc_mq_context_ring_size,
15290 &mq_create_ext->u.request.context,
15291 LPFC_MQ_RING_SIZE_128);
15294 list_for_each_entry(dmabuf, &mq->page_list, list) {
15295 memset(dmabuf->virt, 0, hw_page_size);
15296 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_lo =
15297 putPaddrLow(dmabuf->phys);
15298 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_hi =
15299 putPaddrHigh(dmabuf->phys);
15301 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15302 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
15303 &mq_create_ext->u.response);
15304 if (rc != MBX_SUCCESS) {
15305 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15306 "2795 MQ_CREATE_EXT failed with "
15307 "status x%x. Failback to MQ_CREATE.\n",
15309 lpfc_mq_create_fb_init(phba, mq, mbox, cq);
15310 mq_create = &mbox->u.mqe.un.mq_create;
15311 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15312 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
15313 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
15314 &mq_create->u.response);
15317 /* The IOCTL status is embedded in the mailbox subheader. */
15318 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15319 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15320 if (shdr_status || shdr_add_status || rc) {
15321 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15322 "2502 MQ_CREATE mailbox failed with "
15323 "status x%x add_status x%x, mbx status x%x\n",
15324 shdr_status, shdr_add_status, rc);
15328 if (mq->queue_id == 0xFFFF) {
15332 mq->type = LPFC_MQ;
15333 mq->assoc_qid = cq->queue_id;
15334 mq->subtype = subtype;
15335 mq->host_index = 0;
15338 /* link the mq onto the parent cq child list */
15339 list_add_tail(&mq->list, &cq->child_list);
15341 mempool_free(mbox, phba->mbox_mem_pool);
15346 * lpfc_wq_create - Create a Work Queue on the HBA
15347 * @phba: HBA structure that indicates port to create a queue on.
15348 * @wq: The queue structure to use to create the work queue.
15349 * @cq: The completion queue to bind this work queue to.
15350 * @subtype: The subtype of the work queue indicating its functionality.
15352 * This function creates a work queue, as detailed in @wq, on a port, described
15353 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
15355 * The @phba struct is used to send mailbox command to HBA. The @wq struct
15356 * is used to get the entry count and entry size that are necessary to
15357 * determine the number of pages to allocate and use for this queue. The @cq
15358 * is used to indicate which completion queue to bind this work queue to. This
15359 * function will send the WQ_CREATE mailbox command to the HBA to setup the
15360 * work queue. This function is asynchronous and will wait for the mailbox
15361 * command to finish before continuing.
15363 * On success this function will return a zero. If unable to allocate enough
15364 * memory this function will return -ENOMEM. If the queue create mailbox command
15365 * fails this function will return -ENXIO.
15368 lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
15369 struct lpfc_queue *cq, uint32_t subtype)
15371 struct lpfc_mbx_wq_create *wq_create;
15372 struct lpfc_dmabuf *dmabuf;
15373 LPFC_MBOXQ_t *mbox;
15374 int rc, length, status = 0;
15375 uint32_t shdr_status, shdr_add_status;
15376 union lpfc_sli4_cfg_shdr *shdr;
15377 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15378 struct dma_address *page;
15379 void __iomem *bar_memmap_p;
15380 uint32_t db_offset;
15381 uint16_t pci_barset;
15382 uint8_t dpp_barset;
15383 uint32_t dpp_offset;
15384 unsigned long pg_addr;
15385 uint8_t wq_create_version;
15387 /* sanity check on queue memory */
15390 if (!phba->sli4_hba.pc_sli4_params.supported)
15391 hw_page_size = wq->page_size;
15393 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15396 length = (sizeof(struct lpfc_mbx_wq_create) -
15397 sizeof(struct lpfc_sli4_cfg_mhdr));
15398 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15399 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
15400 length, LPFC_SLI4_MBX_EMBED);
15401 wq_create = &mbox->u.mqe.un.wq_create;
15402 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
15403 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
15405 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
15408 /* wqv is the earliest version supported, NOT the latest */
15409 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15410 phba->sli4_hba.pc_sli4_params.wqv);
15412 if ((phba->sli4_hba.pc_sli4_params.wqsize & LPFC_WQ_SZ128_SUPPORT) ||
15413 (wq->page_size > SLI4_PAGE_SIZE))
15414 wq_create_version = LPFC_Q_CREATE_VERSION_1;
15416 wq_create_version = LPFC_Q_CREATE_VERSION_0;
15419 if (phba->sli4_hba.pc_sli4_params.wqsize & LPFC_WQ_SZ128_SUPPORT)
15420 wq_create_version = LPFC_Q_CREATE_VERSION_1;
15422 wq_create_version = LPFC_Q_CREATE_VERSION_0;
15424 switch (wq_create_version) {
15425 case LPFC_Q_CREATE_VERSION_1:
15426 bf_set(lpfc_mbx_wq_create_wqe_count, &wq_create->u.request_1,
15428 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15429 LPFC_Q_CREATE_VERSION_1);
15431 switch (wq->entry_size) {
15434 bf_set(lpfc_mbx_wq_create_wqe_size,
15435 &wq_create->u.request_1,
15436 LPFC_WQ_WQE_SIZE_64);
15439 bf_set(lpfc_mbx_wq_create_wqe_size,
15440 &wq_create->u.request_1,
15441 LPFC_WQ_WQE_SIZE_128);
15444 /* Request DPP by default */
15445 bf_set(lpfc_mbx_wq_create_dpp_req, &wq_create->u.request_1, 1);
15446 bf_set(lpfc_mbx_wq_create_page_size,
15447 &wq_create->u.request_1,
15448 (wq->page_size / SLI4_PAGE_SIZE));
15449 page = wq_create->u.request_1.page;
15452 page = wq_create->u.request.page;
15456 list_for_each_entry(dmabuf, &wq->page_list, list) {
15457 memset(dmabuf->virt, 0, hw_page_size);
15458 page[dmabuf->buffer_tag].addr_lo = putPaddrLow(dmabuf->phys);
15459 page[dmabuf->buffer_tag].addr_hi = putPaddrHigh(dmabuf->phys);
15462 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
15463 bf_set(lpfc_mbx_wq_create_dua, &wq_create->u.request, 1);
15465 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15466 /* The IOCTL status is embedded in the mailbox subheader. */
15467 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15468 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15469 if (shdr_status || shdr_add_status || rc) {
15470 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15471 "2503 WQ_CREATE mailbox failed with "
15472 "status x%x add_status x%x, mbx status x%x\n",
15473 shdr_status, shdr_add_status, rc);
15478 if (wq_create_version == LPFC_Q_CREATE_VERSION_0)
15479 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id,
15480 &wq_create->u.response);
15482 wq->queue_id = bf_get(lpfc_mbx_wq_create_v1_q_id,
15483 &wq_create->u.response_1);
15485 if (wq->queue_id == 0xFFFF) {
15490 wq->db_format = LPFC_DB_LIST_FORMAT;
15491 if (wq_create_version == LPFC_Q_CREATE_VERSION_0) {
15492 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
15493 wq->db_format = bf_get(lpfc_mbx_wq_create_db_format,
15494 &wq_create->u.response);
15495 if ((wq->db_format != LPFC_DB_LIST_FORMAT) &&
15496 (wq->db_format != LPFC_DB_RING_FORMAT)) {
15497 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15498 "3265 WQ[%d] doorbell format "
15499 "not supported: x%x\n",
15500 wq->queue_id, wq->db_format);
15504 pci_barset = bf_get(lpfc_mbx_wq_create_bar_set,
15505 &wq_create->u.response);
15506 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba,
15508 if (!bar_memmap_p) {
15509 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15510 "3263 WQ[%d] failed to memmap "
15511 "pci barset:x%x\n",
15512 wq->queue_id, pci_barset);
15516 db_offset = wq_create->u.response.doorbell_offset;
15517 if ((db_offset != LPFC_ULP0_WQ_DOORBELL) &&
15518 (db_offset != LPFC_ULP1_WQ_DOORBELL)) {
15519 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15520 "3252 WQ[%d] doorbell offset "
15521 "not supported: x%x\n",
15522 wq->queue_id, db_offset);
15526 wq->db_regaddr = bar_memmap_p + db_offset;
15527 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15528 "3264 WQ[%d]: barset:x%x, offset:x%x, "
15529 "format:x%x\n", wq->queue_id,
15530 pci_barset, db_offset, wq->db_format);
15532 wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
15534 /* Check if DPP was honored by the firmware */
15535 wq->dpp_enable = bf_get(lpfc_mbx_wq_create_dpp_rsp,
15536 &wq_create->u.response_1);
15537 if (wq->dpp_enable) {
15538 pci_barset = bf_get(lpfc_mbx_wq_create_v1_bar_set,
15539 &wq_create->u.response_1);
15540 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba,
15542 if (!bar_memmap_p) {
15543 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15544 "3267 WQ[%d] failed to memmap "
15545 "pci barset:x%x\n",
15546 wq->queue_id, pci_barset);
15550 db_offset = wq_create->u.response_1.doorbell_offset;
15551 wq->db_regaddr = bar_memmap_p + db_offset;
15552 wq->dpp_id = bf_get(lpfc_mbx_wq_create_dpp_id,
15553 &wq_create->u.response_1);
15554 dpp_barset = bf_get(lpfc_mbx_wq_create_dpp_bar,
15555 &wq_create->u.response_1);
15556 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba,
15558 if (!bar_memmap_p) {
15559 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15560 "3268 WQ[%d] failed to memmap "
15561 "pci barset:x%x\n",
15562 wq->queue_id, dpp_barset);
15566 dpp_offset = wq_create->u.response_1.dpp_offset;
15567 wq->dpp_regaddr = bar_memmap_p + dpp_offset;
15568 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15569 "3271 WQ[%d]: barset:x%x, offset:x%x, "
15570 "dpp_id:x%x dpp_barset:x%x "
15571 "dpp_offset:x%x\n",
15572 wq->queue_id, pci_barset, db_offset,
15573 wq->dpp_id, dpp_barset, dpp_offset);
15575 /* Enable combined writes for DPP aperture */
15576 pg_addr = (unsigned long)(wq->dpp_regaddr) & PAGE_MASK;
15578 rc = set_memory_wc(pg_addr, 1);
15580 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15581 "3272 Cannot setup Combined "
15582 "Write on WQ[%d] - disable DPP\n",
15584 phba->cfg_enable_dpp = 0;
15587 phba->cfg_enable_dpp = 0;
15590 wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
15592 wq->pring = kzalloc(sizeof(struct lpfc_sli_ring), GFP_KERNEL);
15593 if (wq->pring == NULL) {
15597 wq->type = LPFC_WQ;
15598 wq->assoc_qid = cq->queue_id;
15599 wq->subtype = subtype;
15600 wq->host_index = 0;
15602 wq->notify_interval = LPFC_WQ_NOTIFY_INTRVL;
15604 /* link the wq onto the parent cq child list */
15605 list_add_tail(&wq->list, &cq->child_list);
15607 mempool_free(mbox, phba->mbox_mem_pool);
15612 * lpfc_rq_create - Create a Receive Queue on the HBA
15613 * @phba: HBA structure that indicates port to create a queue on.
15614 * @hrq: The queue structure to use to create the header receive queue.
15615 * @drq: The queue structure to use to create the data receive queue.
15616 * @cq: The completion queue to bind this work queue to.
15618 * This function creates a receive buffer queue pair , as detailed in @hrq and
15619 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
15622 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
15623 * struct is used to get the entry count that is necessary to determine the
15624 * number of pages to use for this queue. The @cq is used to indicate which
15625 * completion queue to bind received buffers that are posted to these queues to.
15626 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
15627 * receive queue pair. This function is asynchronous and will wait for the
15628 * mailbox command to finish before continuing.
15630 * On success this function will return a zero. If unable to allocate enough
15631 * memory this function will return -ENOMEM. If the queue create mailbox command
15632 * fails this function will return -ENXIO.
15635 lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
15636 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
15638 struct lpfc_mbx_rq_create *rq_create;
15639 struct lpfc_dmabuf *dmabuf;
15640 LPFC_MBOXQ_t *mbox;
15641 int rc, length, status = 0;
15642 uint32_t shdr_status, shdr_add_status;
15643 union lpfc_sli4_cfg_shdr *shdr;
15644 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15645 void __iomem *bar_memmap_p;
15646 uint32_t db_offset;
15647 uint16_t pci_barset;
15649 /* sanity check on queue memory */
15650 if (!hrq || !drq || !cq)
15652 if (!phba->sli4_hba.pc_sli4_params.supported)
15653 hw_page_size = SLI4_PAGE_SIZE;
15655 if (hrq->entry_count != drq->entry_count)
15657 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15660 length = (sizeof(struct lpfc_mbx_rq_create) -
15661 sizeof(struct lpfc_sli4_cfg_mhdr));
15662 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15663 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
15664 length, LPFC_SLI4_MBX_EMBED);
15665 rq_create = &mbox->u.mqe.un.rq_create;
15666 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
15667 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15668 phba->sli4_hba.pc_sli4_params.rqv);
15669 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
15670 bf_set(lpfc_rq_context_rqe_count_1,
15671 &rq_create->u.request.context,
15673 rq_create->u.request.context.buffer_size = LPFC_HDR_BUF_SIZE;
15674 bf_set(lpfc_rq_context_rqe_size,
15675 &rq_create->u.request.context,
15677 bf_set(lpfc_rq_context_page_size,
15678 &rq_create->u.request.context,
15679 LPFC_RQ_PAGE_SIZE_4096);
15681 switch (hrq->entry_count) {
15683 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15684 "2535 Unsupported RQ count. (%d)\n",
15686 if (hrq->entry_count < 512) {
15690 /* fall through - otherwise default to smallest count */
15692 bf_set(lpfc_rq_context_rqe_count,
15693 &rq_create->u.request.context,
15694 LPFC_RQ_RING_SIZE_512);
15697 bf_set(lpfc_rq_context_rqe_count,
15698 &rq_create->u.request.context,
15699 LPFC_RQ_RING_SIZE_1024);
15702 bf_set(lpfc_rq_context_rqe_count,
15703 &rq_create->u.request.context,
15704 LPFC_RQ_RING_SIZE_2048);
15707 bf_set(lpfc_rq_context_rqe_count,
15708 &rq_create->u.request.context,
15709 LPFC_RQ_RING_SIZE_4096);
15712 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
15713 LPFC_HDR_BUF_SIZE);
15715 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
15717 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
15719 list_for_each_entry(dmabuf, &hrq->page_list, list) {
15720 memset(dmabuf->virt, 0, hw_page_size);
15721 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
15722 putPaddrLow(dmabuf->phys);
15723 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
15724 putPaddrHigh(dmabuf->phys);
15726 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
15727 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
15729 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15730 /* The IOCTL status is embedded in the mailbox subheader. */
15731 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15732 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15733 if (shdr_status || shdr_add_status || rc) {
15734 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15735 "2504 RQ_CREATE mailbox failed with "
15736 "status x%x add_status x%x, mbx status x%x\n",
15737 shdr_status, shdr_add_status, rc);
15741 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
15742 if (hrq->queue_id == 0xFFFF) {
15747 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
15748 hrq->db_format = bf_get(lpfc_mbx_rq_create_db_format,
15749 &rq_create->u.response);
15750 if ((hrq->db_format != LPFC_DB_LIST_FORMAT) &&
15751 (hrq->db_format != LPFC_DB_RING_FORMAT)) {
15752 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15753 "3262 RQ [%d] doorbell format not "
15754 "supported: x%x\n", hrq->queue_id,
15760 pci_barset = bf_get(lpfc_mbx_rq_create_bar_set,
15761 &rq_create->u.response);
15762 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
15763 if (!bar_memmap_p) {
15764 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15765 "3269 RQ[%d] failed to memmap pci "
15766 "barset:x%x\n", hrq->queue_id,
15772 db_offset = rq_create->u.response.doorbell_offset;
15773 if ((db_offset != LPFC_ULP0_RQ_DOORBELL) &&
15774 (db_offset != LPFC_ULP1_RQ_DOORBELL)) {
15775 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15776 "3270 RQ[%d] doorbell offset not "
15777 "supported: x%x\n", hrq->queue_id,
15782 hrq->db_regaddr = bar_memmap_p + db_offset;
15783 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15784 "3266 RQ[qid:%d]: barset:x%x, offset:x%x, "
15785 "format:x%x\n", hrq->queue_id, pci_barset,
15786 db_offset, hrq->db_format);
15788 hrq->db_format = LPFC_DB_RING_FORMAT;
15789 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
15791 hrq->type = LPFC_HRQ;
15792 hrq->assoc_qid = cq->queue_id;
15793 hrq->subtype = subtype;
15794 hrq->host_index = 0;
15795 hrq->hba_index = 0;
15796 hrq->notify_interval = LPFC_RQ_NOTIFY_INTRVL;
15798 /* now create the data queue */
15799 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15800 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
15801 length, LPFC_SLI4_MBX_EMBED);
15802 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15803 phba->sli4_hba.pc_sli4_params.rqv);
15804 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
15805 bf_set(lpfc_rq_context_rqe_count_1,
15806 &rq_create->u.request.context, hrq->entry_count);
15807 if (subtype == LPFC_NVMET)
15808 rq_create->u.request.context.buffer_size =
15809 LPFC_NVMET_DATA_BUF_SIZE;
15811 rq_create->u.request.context.buffer_size =
15812 LPFC_DATA_BUF_SIZE;
15813 bf_set(lpfc_rq_context_rqe_size, &rq_create->u.request.context,
15815 bf_set(lpfc_rq_context_page_size, &rq_create->u.request.context,
15816 (PAGE_SIZE/SLI4_PAGE_SIZE));
15818 switch (drq->entry_count) {
15820 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15821 "2536 Unsupported RQ count. (%d)\n",
15823 if (drq->entry_count < 512) {
15827 /* fall through - otherwise default to smallest count */
15829 bf_set(lpfc_rq_context_rqe_count,
15830 &rq_create->u.request.context,
15831 LPFC_RQ_RING_SIZE_512);
15834 bf_set(lpfc_rq_context_rqe_count,
15835 &rq_create->u.request.context,
15836 LPFC_RQ_RING_SIZE_1024);
15839 bf_set(lpfc_rq_context_rqe_count,
15840 &rq_create->u.request.context,
15841 LPFC_RQ_RING_SIZE_2048);
15844 bf_set(lpfc_rq_context_rqe_count,
15845 &rq_create->u.request.context,
15846 LPFC_RQ_RING_SIZE_4096);
15849 if (subtype == LPFC_NVMET)
15850 bf_set(lpfc_rq_context_buf_size,
15851 &rq_create->u.request.context,
15852 LPFC_NVMET_DATA_BUF_SIZE);
15854 bf_set(lpfc_rq_context_buf_size,
15855 &rq_create->u.request.context,
15856 LPFC_DATA_BUF_SIZE);
15858 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
15860 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
15862 list_for_each_entry(dmabuf, &drq->page_list, list) {
15863 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
15864 putPaddrLow(dmabuf->phys);
15865 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
15866 putPaddrHigh(dmabuf->phys);
15868 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
15869 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
15870 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15871 /* The IOCTL status is embedded in the mailbox subheader. */
15872 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
15873 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15874 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15875 if (shdr_status || shdr_add_status || rc) {
15879 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
15880 if (drq->queue_id == 0xFFFF) {
15884 drq->type = LPFC_DRQ;
15885 drq->assoc_qid = cq->queue_id;
15886 drq->subtype = subtype;
15887 drq->host_index = 0;
15888 drq->hba_index = 0;
15889 drq->notify_interval = LPFC_RQ_NOTIFY_INTRVL;
15891 /* link the header and data RQs onto the parent cq child list */
15892 list_add_tail(&hrq->list, &cq->child_list);
15893 list_add_tail(&drq->list, &cq->child_list);
15896 mempool_free(mbox, phba->mbox_mem_pool);
15901 * lpfc_mrq_create - Create MRQ Receive Queues on the HBA
15902 * @phba: HBA structure that indicates port to create a queue on.
15903 * @hrqp: The queue structure array to use to create the header receive queues.
15904 * @drqp: The queue structure array to use to create the data receive queues.
15905 * @cqp: The completion queue array to bind these receive queues to.
15907 * This function creates a receive buffer queue pair , as detailed in @hrq and
15908 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
15911 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
15912 * struct is used to get the entry count that is necessary to determine the
15913 * number of pages to use for this queue. The @cq is used to indicate which
15914 * completion queue to bind received buffers that are posted to these queues to.
15915 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
15916 * receive queue pair. This function is asynchronous and will wait for the
15917 * mailbox command to finish before continuing.
15919 * On success this function will return a zero. If unable to allocate enough
15920 * memory this function will return -ENOMEM. If the queue create mailbox command
15921 * fails this function will return -ENXIO.
15924 lpfc_mrq_create(struct lpfc_hba *phba, struct lpfc_queue **hrqp,
15925 struct lpfc_queue **drqp, struct lpfc_queue **cqp,
15928 struct lpfc_queue *hrq, *drq, *cq;
15929 struct lpfc_mbx_rq_create_v2 *rq_create;
15930 struct lpfc_dmabuf *dmabuf;
15931 LPFC_MBOXQ_t *mbox;
15932 int rc, length, alloclen, status = 0;
15933 int cnt, idx, numrq, page_idx = 0;
15934 uint32_t shdr_status, shdr_add_status;
15935 union lpfc_sli4_cfg_shdr *shdr;
15936 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15938 numrq = phba->cfg_nvmet_mrq;
15939 /* sanity check on array memory */
15940 if (!hrqp || !drqp || !cqp || !numrq)
15942 if (!phba->sli4_hba.pc_sli4_params.supported)
15943 hw_page_size = SLI4_PAGE_SIZE;
15945 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15949 length = sizeof(struct lpfc_mbx_rq_create_v2);
15950 length += ((2 * numrq * hrqp[0]->page_count) *
15951 sizeof(struct dma_address));
15953 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15954 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE, length,
15955 LPFC_SLI4_MBX_NEMBED);
15956 if (alloclen < length) {
15957 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15958 "3099 Allocated DMA memory size (%d) is "
15959 "less than the requested DMA memory size "
15960 "(%d)\n", alloclen, length);
15967 rq_create = mbox->sge_array->addr[0];
15968 shdr = (union lpfc_sli4_cfg_shdr *)&rq_create->cfg_shdr;
15970 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_Q_CREATE_VERSION_2);
15973 for (idx = 0; idx < numrq; idx++) {
15978 /* sanity check on queue memory */
15979 if (!hrq || !drq || !cq) {
15984 if (hrq->entry_count != drq->entry_count) {
15990 bf_set(lpfc_mbx_rq_create_num_pages,
15991 &rq_create->u.request,
15993 bf_set(lpfc_mbx_rq_create_rq_cnt,
15994 &rq_create->u.request, (numrq * 2));
15995 bf_set(lpfc_mbx_rq_create_dnb, &rq_create->u.request,
15997 bf_set(lpfc_rq_context_base_cq,
15998 &rq_create->u.request.context,
16000 bf_set(lpfc_rq_context_data_size,
16001 &rq_create->u.request.context,
16002 LPFC_NVMET_DATA_BUF_SIZE);
16003 bf_set(lpfc_rq_context_hdr_size,
16004 &rq_create->u.request.context,
16005 LPFC_HDR_BUF_SIZE);
16006 bf_set(lpfc_rq_context_rqe_count_1,
16007 &rq_create->u.request.context,
16009 bf_set(lpfc_rq_context_rqe_size,
16010 &rq_create->u.request.context,
16012 bf_set(lpfc_rq_context_page_size,
16013 &rq_create->u.request.context,
16014 (PAGE_SIZE/SLI4_PAGE_SIZE));
16017 list_for_each_entry(dmabuf, &hrq->page_list, list) {
16018 memset(dmabuf->virt, 0, hw_page_size);
16019 cnt = page_idx + dmabuf->buffer_tag;
16020 rq_create->u.request.page[cnt].addr_lo =
16021 putPaddrLow(dmabuf->phys);
16022 rq_create->u.request.page[cnt].addr_hi =
16023 putPaddrHigh(dmabuf->phys);
16029 list_for_each_entry(dmabuf, &drq->page_list, list) {
16030 memset(dmabuf->virt, 0, hw_page_size);
16031 cnt = page_idx + dmabuf->buffer_tag;
16032 rq_create->u.request.page[cnt].addr_lo =
16033 putPaddrLow(dmabuf->phys);
16034 rq_create->u.request.page[cnt].addr_hi =
16035 putPaddrHigh(dmabuf->phys);
16040 hrq->db_format = LPFC_DB_RING_FORMAT;
16041 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
16042 hrq->type = LPFC_HRQ;
16043 hrq->assoc_qid = cq->queue_id;
16044 hrq->subtype = subtype;
16045 hrq->host_index = 0;
16046 hrq->hba_index = 0;
16047 hrq->notify_interval = LPFC_RQ_NOTIFY_INTRVL;
16049 drq->db_format = LPFC_DB_RING_FORMAT;
16050 drq->db_regaddr = phba->sli4_hba.RQDBregaddr;
16051 drq->type = LPFC_DRQ;
16052 drq->assoc_qid = cq->queue_id;
16053 drq->subtype = subtype;
16054 drq->host_index = 0;
16055 drq->hba_index = 0;
16056 drq->notify_interval = LPFC_RQ_NOTIFY_INTRVL;
16058 list_add_tail(&hrq->list, &cq->child_list);
16059 list_add_tail(&drq->list, &cq->child_list);
16062 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16063 /* The IOCTL status is embedded in the mailbox subheader. */
16064 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16065 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16066 if (shdr_status || shdr_add_status || rc) {
16067 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16068 "3120 RQ_CREATE mailbox failed with "
16069 "status x%x add_status x%x, mbx status x%x\n",
16070 shdr_status, shdr_add_status, rc);
16074 rc = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
16075 if (rc == 0xFFFF) {
16080 /* Initialize all RQs with associated queue id */
16081 for (idx = 0; idx < numrq; idx++) {
16083 hrq->queue_id = rc + (2 * idx);
16085 drq->queue_id = rc + (2 * idx) + 1;
16089 lpfc_sli4_mbox_cmd_free(phba, mbox);
16094 * lpfc_eq_destroy - Destroy an event Queue on the HBA
16095 * @eq: The queue structure associated with the queue to destroy.
16097 * This function destroys a queue, as detailed in @eq by sending an mailbox
16098 * command, specific to the type of queue, to the HBA.
16100 * The @eq struct is used to get the queue ID of the queue to destroy.
16102 * On success this function will return a zero. If the queue destroy mailbox
16103 * command fails this function will return -ENXIO.
16106 lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
16108 LPFC_MBOXQ_t *mbox;
16109 int rc, length, status = 0;
16110 uint32_t shdr_status, shdr_add_status;
16111 union lpfc_sli4_cfg_shdr *shdr;
16113 /* sanity check on queue memory */
16117 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
16120 length = (sizeof(struct lpfc_mbx_eq_destroy) -
16121 sizeof(struct lpfc_sli4_cfg_mhdr));
16122 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16123 LPFC_MBOX_OPCODE_EQ_DESTROY,
16124 length, LPFC_SLI4_MBX_EMBED);
16125 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
16127 mbox->vport = eq->phba->pport;
16128 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16130 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
16131 /* The IOCTL status is embedded in the mailbox subheader. */
16132 shdr = (union lpfc_sli4_cfg_shdr *)
16133 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
16134 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16135 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16136 if (shdr_status || shdr_add_status || rc) {
16137 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16138 "2505 EQ_DESTROY mailbox failed with "
16139 "status x%x add_status x%x, mbx status x%x\n",
16140 shdr_status, shdr_add_status, rc);
16144 /* Remove eq from any list */
16145 list_del_init(&eq->list);
16146 mempool_free(mbox, eq->phba->mbox_mem_pool);
16151 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
16152 * @cq: The queue structure associated with the queue to destroy.
16154 * This function destroys a queue, as detailed in @cq by sending an mailbox
16155 * command, specific to the type of queue, to the HBA.
16157 * The @cq struct is used to get the queue ID of the queue to destroy.
16159 * On success this function will return a zero. If the queue destroy mailbox
16160 * command fails this function will return -ENXIO.
16163 lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
16165 LPFC_MBOXQ_t *mbox;
16166 int rc, length, status = 0;
16167 uint32_t shdr_status, shdr_add_status;
16168 union lpfc_sli4_cfg_shdr *shdr;
16170 /* sanity check on queue memory */
16173 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
16176 length = (sizeof(struct lpfc_mbx_cq_destroy) -
16177 sizeof(struct lpfc_sli4_cfg_mhdr));
16178 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16179 LPFC_MBOX_OPCODE_CQ_DESTROY,
16180 length, LPFC_SLI4_MBX_EMBED);
16181 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
16183 mbox->vport = cq->phba->pport;
16184 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16185 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
16186 /* The IOCTL status is embedded in the mailbox subheader. */
16187 shdr = (union lpfc_sli4_cfg_shdr *)
16188 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
16189 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16190 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16191 if (shdr_status || shdr_add_status || rc) {
16192 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16193 "2506 CQ_DESTROY mailbox failed with "
16194 "status x%x add_status x%x, mbx status x%x\n",
16195 shdr_status, shdr_add_status, rc);
16198 /* Remove cq from any list */
16199 list_del_init(&cq->list);
16200 mempool_free(mbox, cq->phba->mbox_mem_pool);
16205 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
16206 * @qm: The queue structure associated with the queue to destroy.
16208 * This function destroys a queue, as detailed in @mq by sending an mailbox
16209 * command, specific to the type of queue, to the HBA.
16211 * The @mq struct is used to get the queue ID of the queue to destroy.
16213 * On success this function will return a zero. If the queue destroy mailbox
16214 * command fails this function will return -ENXIO.
16217 lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
16219 LPFC_MBOXQ_t *mbox;
16220 int rc, length, status = 0;
16221 uint32_t shdr_status, shdr_add_status;
16222 union lpfc_sli4_cfg_shdr *shdr;
16224 /* sanity check on queue memory */
16227 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
16230 length = (sizeof(struct lpfc_mbx_mq_destroy) -
16231 sizeof(struct lpfc_sli4_cfg_mhdr));
16232 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16233 LPFC_MBOX_OPCODE_MQ_DESTROY,
16234 length, LPFC_SLI4_MBX_EMBED);
16235 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
16237 mbox->vport = mq->phba->pport;
16238 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16239 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
16240 /* The IOCTL status is embedded in the mailbox subheader. */
16241 shdr = (union lpfc_sli4_cfg_shdr *)
16242 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
16243 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16244 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16245 if (shdr_status || shdr_add_status || rc) {
16246 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16247 "2507 MQ_DESTROY mailbox failed with "
16248 "status x%x add_status x%x, mbx status x%x\n",
16249 shdr_status, shdr_add_status, rc);
16252 /* Remove mq from any list */
16253 list_del_init(&mq->list);
16254 mempool_free(mbox, mq->phba->mbox_mem_pool);
16259 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
16260 * @wq: The queue structure associated with the queue to destroy.
16262 * This function destroys a queue, as detailed in @wq by sending an mailbox
16263 * command, specific to the type of queue, to the HBA.
16265 * The @wq struct is used to get the queue ID of the queue to destroy.
16267 * On success this function will return a zero. If the queue destroy mailbox
16268 * command fails this function will return -ENXIO.
16271 lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
16273 LPFC_MBOXQ_t *mbox;
16274 int rc, length, status = 0;
16275 uint32_t shdr_status, shdr_add_status;
16276 union lpfc_sli4_cfg_shdr *shdr;
16278 /* sanity check on queue memory */
16281 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
16284 length = (sizeof(struct lpfc_mbx_wq_destroy) -
16285 sizeof(struct lpfc_sli4_cfg_mhdr));
16286 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16287 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
16288 length, LPFC_SLI4_MBX_EMBED);
16289 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
16291 mbox->vport = wq->phba->pport;
16292 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16293 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
16294 shdr = (union lpfc_sli4_cfg_shdr *)
16295 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
16296 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16297 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16298 if (shdr_status || shdr_add_status || rc) {
16299 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16300 "2508 WQ_DESTROY mailbox failed with "
16301 "status x%x add_status x%x, mbx status x%x\n",
16302 shdr_status, shdr_add_status, rc);
16305 /* Remove wq from any list */
16306 list_del_init(&wq->list);
16309 mempool_free(mbox, wq->phba->mbox_mem_pool);
16314 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
16315 * @rq: The queue structure associated with the queue to destroy.
16317 * This function destroys a queue, as detailed in @rq by sending an mailbox
16318 * command, specific to the type of queue, to the HBA.
16320 * The @rq struct is used to get the queue ID of the queue to destroy.
16322 * On success this function will return a zero. If the queue destroy mailbox
16323 * command fails this function will return -ENXIO.
16326 lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
16327 struct lpfc_queue *drq)
16329 LPFC_MBOXQ_t *mbox;
16330 int rc, length, status = 0;
16331 uint32_t shdr_status, shdr_add_status;
16332 union lpfc_sli4_cfg_shdr *shdr;
16334 /* sanity check on queue memory */
16337 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
16340 length = (sizeof(struct lpfc_mbx_rq_destroy) -
16341 sizeof(struct lpfc_sli4_cfg_mhdr));
16342 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16343 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
16344 length, LPFC_SLI4_MBX_EMBED);
16345 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
16347 mbox->vport = hrq->phba->pport;
16348 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16349 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
16350 /* The IOCTL status is embedded in the mailbox subheader. */
16351 shdr = (union lpfc_sli4_cfg_shdr *)
16352 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
16353 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16354 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16355 if (shdr_status || shdr_add_status || rc) {
16356 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16357 "2509 RQ_DESTROY mailbox failed with "
16358 "status x%x add_status x%x, mbx status x%x\n",
16359 shdr_status, shdr_add_status, rc);
16360 if (rc != MBX_TIMEOUT)
16361 mempool_free(mbox, hrq->phba->mbox_mem_pool);
16364 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
16366 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
16367 shdr = (union lpfc_sli4_cfg_shdr *)
16368 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
16369 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16370 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16371 if (shdr_status || shdr_add_status || rc) {
16372 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16373 "2510 RQ_DESTROY mailbox failed with "
16374 "status x%x add_status x%x, mbx status x%x\n",
16375 shdr_status, shdr_add_status, rc);
16378 list_del_init(&hrq->list);
16379 list_del_init(&drq->list);
16380 mempool_free(mbox, hrq->phba->mbox_mem_pool);
16385 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
16386 * @phba: The virtual port for which this call being executed.
16387 * @pdma_phys_addr0: Physical address of the 1st SGL page.
16388 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
16389 * @xritag: the xritag that ties this io to the SGL pages.
16391 * This routine will post the sgl pages for the IO that has the xritag
16392 * that is in the iocbq structure. The xritag is assigned during iocbq
16393 * creation and persists for as long as the driver is loaded.
16394 * if the caller has fewer than 256 scatter gather segments to map then
16395 * pdma_phys_addr1 should be 0.
16396 * If the caller needs to map more than 256 scatter gather segment then
16397 * pdma_phys_addr1 should be a valid physical address.
16398 * physical address for SGLs must be 64 byte aligned.
16399 * If you are going to map 2 SGL's then the first one must have 256 entries
16400 * the second sgl can have between 1 and 256 entries.
16404 * -ENXIO, -ENOMEM - Failure
16407 lpfc_sli4_post_sgl(struct lpfc_hba *phba,
16408 dma_addr_t pdma_phys_addr0,
16409 dma_addr_t pdma_phys_addr1,
16412 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
16413 LPFC_MBOXQ_t *mbox;
16415 uint32_t shdr_status, shdr_add_status;
16417 union lpfc_sli4_cfg_shdr *shdr;
16419 if (xritag == NO_XRI) {
16420 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16421 "0364 Invalid param:\n");
16425 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16429 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16430 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
16431 sizeof(struct lpfc_mbx_post_sgl_pages) -
16432 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
16434 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
16435 &mbox->u.mqe.un.post_sgl_pages;
16436 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
16437 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
16439 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
16440 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
16441 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
16442 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
16444 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
16445 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
16446 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
16447 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
16448 if (!phba->sli4_hba.intr_enable)
16449 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16451 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
16452 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16454 /* The IOCTL status is embedded in the mailbox subheader. */
16455 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
16456 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16457 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16458 if (rc != MBX_TIMEOUT)
16459 mempool_free(mbox, phba->mbox_mem_pool);
16460 if (shdr_status || shdr_add_status || rc) {
16461 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16462 "2511 POST_SGL mailbox failed with "
16463 "status x%x add_status x%x, mbx status x%x\n",
16464 shdr_status, shdr_add_status, rc);
16470 * lpfc_sli4_alloc_xri - Get an available rpi in the device's range
16471 * @phba: pointer to lpfc hba data structure.
16473 * This routine is invoked to post rpi header templates to the
16474 * HBA consistent with the SLI-4 interface spec. This routine
16475 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
16476 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
16479 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
16480 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
16483 lpfc_sli4_alloc_xri(struct lpfc_hba *phba)
16488 * Fetch the next logical xri. Because this index is logical,
16489 * the driver starts at 0 each time.
16491 spin_lock_irq(&phba->hbalock);
16492 xri = find_next_zero_bit(phba->sli4_hba.xri_bmask,
16493 phba->sli4_hba.max_cfg_param.max_xri, 0);
16494 if (xri >= phba->sli4_hba.max_cfg_param.max_xri) {
16495 spin_unlock_irq(&phba->hbalock);
16498 set_bit(xri, phba->sli4_hba.xri_bmask);
16499 phba->sli4_hba.max_cfg_param.xri_used++;
16501 spin_unlock_irq(&phba->hbalock);
16506 * lpfc_sli4_free_xri - Release an xri for reuse.
16507 * @phba: pointer to lpfc hba data structure.
16509 * This routine is invoked to release an xri to the pool of
16510 * available rpis maintained by the driver.
16513 __lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
16515 if (test_and_clear_bit(xri, phba->sli4_hba.xri_bmask)) {
16516 phba->sli4_hba.max_cfg_param.xri_used--;
16521 * lpfc_sli4_free_xri - Release an xri for reuse.
16522 * @phba: pointer to lpfc hba data structure.
16524 * This routine is invoked to release an xri to the pool of
16525 * available rpis maintained by the driver.
16528 lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
16530 spin_lock_irq(&phba->hbalock);
16531 __lpfc_sli4_free_xri(phba, xri);
16532 spin_unlock_irq(&phba->hbalock);
16536 * lpfc_sli4_next_xritag - Get an xritag for the io
16537 * @phba: Pointer to HBA context object.
16539 * This function gets an xritag for the iocb. If there is no unused xritag
16540 * it will return 0xffff.
16541 * The function returns the allocated xritag if successful, else returns zero.
16542 * Zero is not a valid xritag.
16543 * The caller is not required to hold any lock.
16546 lpfc_sli4_next_xritag(struct lpfc_hba *phba)
16548 uint16_t xri_index;
16550 xri_index = lpfc_sli4_alloc_xri(phba);
16551 if (xri_index == NO_XRI)
16552 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
16553 "2004 Failed to allocate XRI.last XRITAG is %d"
16554 " Max XRI is %d, Used XRI is %d\n",
16556 phba->sli4_hba.max_cfg_param.max_xri,
16557 phba->sli4_hba.max_cfg_param.xri_used);
16562 * lpfc_sli4_post_sgl_list - post a block of ELS sgls to the port.
16563 * @phba: pointer to lpfc hba data structure.
16564 * @post_sgl_list: pointer to els sgl entry list.
16565 * @count: number of els sgl entries on the list.
16567 * This routine is invoked to post a block of driver's sgl pages to the
16568 * HBA using non-embedded mailbox command. No Lock is held. This routine
16569 * is only called when the driver is loading and after all IO has been
16573 lpfc_sli4_post_sgl_list(struct lpfc_hba *phba,
16574 struct list_head *post_sgl_list,
16577 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
16578 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
16579 struct sgl_page_pairs *sgl_pg_pairs;
16581 LPFC_MBOXQ_t *mbox;
16582 uint32_t reqlen, alloclen, pg_pairs;
16584 uint16_t xritag_start = 0;
16586 uint32_t shdr_status, shdr_add_status;
16587 union lpfc_sli4_cfg_shdr *shdr;
16589 reqlen = post_cnt * sizeof(struct sgl_page_pairs) +
16590 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
16591 if (reqlen > SLI4_PAGE_SIZE) {
16592 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16593 "2559 Block sgl registration required DMA "
16594 "size (%d) great than a page\n", reqlen);
16598 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16602 /* Allocate DMA memory and set up the non-embedded mailbox command */
16603 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16604 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
16605 LPFC_SLI4_MBX_NEMBED);
16607 if (alloclen < reqlen) {
16608 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16609 "0285 Allocated DMA memory size (%d) is "
16610 "less than the requested DMA memory "
16611 "size (%d)\n", alloclen, reqlen);
16612 lpfc_sli4_mbox_cmd_free(phba, mbox);
16615 /* Set up the SGL pages in the non-embedded DMA pages */
16616 viraddr = mbox->sge_array->addr[0];
16617 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
16618 sgl_pg_pairs = &sgl->sgl_pg_pairs;
16621 list_for_each_entry_safe(sglq_entry, sglq_next, post_sgl_list, list) {
16622 /* Set up the sge entry */
16623 sgl_pg_pairs->sgl_pg0_addr_lo =
16624 cpu_to_le32(putPaddrLow(sglq_entry->phys));
16625 sgl_pg_pairs->sgl_pg0_addr_hi =
16626 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
16627 sgl_pg_pairs->sgl_pg1_addr_lo =
16628 cpu_to_le32(putPaddrLow(0));
16629 sgl_pg_pairs->sgl_pg1_addr_hi =
16630 cpu_to_le32(putPaddrHigh(0));
16632 /* Keep the first xritag on the list */
16634 xritag_start = sglq_entry->sli4_xritag;
16639 /* Complete initialization and perform endian conversion. */
16640 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
16641 bf_set(lpfc_post_sgl_pages_xricnt, sgl, post_cnt);
16642 sgl->word0 = cpu_to_le32(sgl->word0);
16644 if (!phba->sli4_hba.intr_enable)
16645 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16647 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
16648 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16650 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
16651 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16652 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16653 if (rc != MBX_TIMEOUT)
16654 lpfc_sli4_mbox_cmd_free(phba, mbox);
16655 if (shdr_status || shdr_add_status || rc) {
16656 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16657 "2513 POST_SGL_BLOCK mailbox command failed "
16658 "status x%x add_status x%x mbx status x%x\n",
16659 shdr_status, shdr_add_status, rc);
16666 * lpfc_sli4_post_io_sgl_block - post a block of nvme sgl list to firmware
16667 * @phba: pointer to lpfc hba data structure.
16668 * @nblist: pointer to nvme buffer list.
16669 * @count: number of scsi buffers on the list.
16671 * This routine is invoked to post a block of @count scsi sgl pages from a
16672 * SCSI buffer list @nblist to the HBA using non-embedded mailbox command.
16677 lpfc_sli4_post_io_sgl_block(struct lpfc_hba *phba, struct list_head *nblist,
16680 struct lpfc_io_buf *lpfc_ncmd;
16681 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
16682 struct sgl_page_pairs *sgl_pg_pairs;
16684 LPFC_MBOXQ_t *mbox;
16685 uint32_t reqlen, alloclen, pg_pairs;
16687 uint16_t xritag_start = 0;
16689 uint32_t shdr_status, shdr_add_status;
16690 dma_addr_t pdma_phys_bpl1;
16691 union lpfc_sli4_cfg_shdr *shdr;
16693 /* Calculate the requested length of the dma memory */
16694 reqlen = count * sizeof(struct sgl_page_pairs) +
16695 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
16696 if (reqlen > SLI4_PAGE_SIZE) {
16697 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
16698 "6118 Block sgl registration required DMA "
16699 "size (%d) great than a page\n", reqlen);
16702 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16704 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16705 "6119 Failed to allocate mbox cmd memory\n");
16709 /* Allocate DMA memory and set up the non-embedded mailbox command */
16710 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16711 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
16712 reqlen, LPFC_SLI4_MBX_NEMBED);
16714 if (alloclen < reqlen) {
16715 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16716 "6120 Allocated DMA memory size (%d) is "
16717 "less than the requested DMA memory "
16718 "size (%d)\n", alloclen, reqlen);
16719 lpfc_sli4_mbox_cmd_free(phba, mbox);
16723 /* Get the first SGE entry from the non-embedded DMA memory */
16724 viraddr = mbox->sge_array->addr[0];
16726 /* Set up the SGL pages in the non-embedded DMA pages */
16727 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
16728 sgl_pg_pairs = &sgl->sgl_pg_pairs;
16731 list_for_each_entry(lpfc_ncmd, nblist, list) {
16732 /* Set up the sge entry */
16733 sgl_pg_pairs->sgl_pg0_addr_lo =
16734 cpu_to_le32(putPaddrLow(lpfc_ncmd->dma_phys_sgl));
16735 sgl_pg_pairs->sgl_pg0_addr_hi =
16736 cpu_to_le32(putPaddrHigh(lpfc_ncmd->dma_phys_sgl));
16737 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
16738 pdma_phys_bpl1 = lpfc_ncmd->dma_phys_sgl +
16741 pdma_phys_bpl1 = 0;
16742 sgl_pg_pairs->sgl_pg1_addr_lo =
16743 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
16744 sgl_pg_pairs->sgl_pg1_addr_hi =
16745 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
16746 /* Keep the first xritag on the list */
16748 xritag_start = lpfc_ncmd->cur_iocbq.sli4_xritag;
16752 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
16753 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
16754 /* Perform endian conversion if necessary */
16755 sgl->word0 = cpu_to_le32(sgl->word0);
16757 if (!phba->sli4_hba.intr_enable) {
16758 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16760 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
16761 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16763 shdr = (union lpfc_sli4_cfg_shdr *)&sgl->cfg_shdr;
16764 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16765 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16766 if (rc != MBX_TIMEOUT)
16767 lpfc_sli4_mbox_cmd_free(phba, mbox);
16768 if (shdr_status || shdr_add_status || rc) {
16769 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16770 "6125 POST_SGL_BLOCK mailbox command failed "
16771 "status x%x add_status x%x mbx status x%x\n",
16772 shdr_status, shdr_add_status, rc);
16779 * lpfc_sli4_post_io_sgl_list - Post blocks of nvme buffer sgls from a list
16780 * @phba: pointer to lpfc hba data structure.
16781 * @post_nblist: pointer to the nvme buffer list.
16783 * This routine walks a list of nvme buffers that was passed in. It attempts
16784 * to construct blocks of nvme buffer sgls which contains contiguous xris and
16785 * uses the non-embedded SGL block post mailbox commands to post to the port.
16786 * For single NVME buffer sgl with non-contiguous xri, if any, it shall use
16787 * embedded SGL post mailbox command for posting. The @post_nblist passed in
16788 * must be local list, thus no lock is needed when manipulate the list.
16790 * Returns: 0 = failure, non-zero number of successfully posted buffers.
16793 lpfc_sli4_post_io_sgl_list(struct lpfc_hba *phba,
16794 struct list_head *post_nblist, int sb_count)
16796 struct lpfc_io_buf *lpfc_ncmd, *lpfc_ncmd_next;
16797 int status, sgl_size;
16798 int post_cnt = 0, block_cnt = 0, num_posting = 0, num_posted = 0;
16799 dma_addr_t pdma_phys_sgl1;
16800 int last_xritag = NO_XRI;
16802 LIST_HEAD(prep_nblist);
16803 LIST_HEAD(blck_nblist);
16804 LIST_HEAD(nvme_nblist);
16810 sgl_size = phba->cfg_sg_dma_buf_size;
16811 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, post_nblist, list) {
16812 list_del_init(&lpfc_ncmd->list);
16814 if ((last_xritag != NO_XRI) &&
16815 (lpfc_ncmd->cur_iocbq.sli4_xritag != last_xritag + 1)) {
16816 /* a hole in xri block, form a sgl posting block */
16817 list_splice_init(&prep_nblist, &blck_nblist);
16818 post_cnt = block_cnt - 1;
16819 /* prepare list for next posting block */
16820 list_add_tail(&lpfc_ncmd->list, &prep_nblist);
16823 /* prepare list for next posting block */
16824 list_add_tail(&lpfc_ncmd->list, &prep_nblist);
16825 /* enough sgls for non-embed sgl mbox command */
16826 if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
16827 list_splice_init(&prep_nblist, &blck_nblist);
16828 post_cnt = block_cnt;
16833 last_xritag = lpfc_ncmd->cur_iocbq.sli4_xritag;
16835 /* end of repost sgl list condition for NVME buffers */
16836 if (num_posting == sb_count) {
16837 if (post_cnt == 0) {
16838 /* last sgl posting block */
16839 list_splice_init(&prep_nblist, &blck_nblist);
16840 post_cnt = block_cnt;
16841 } else if (block_cnt == 1) {
16842 /* last single sgl with non-contiguous xri */
16843 if (sgl_size > SGL_PAGE_SIZE)
16845 lpfc_ncmd->dma_phys_sgl +
16848 pdma_phys_sgl1 = 0;
16849 cur_xritag = lpfc_ncmd->cur_iocbq.sli4_xritag;
16850 status = lpfc_sli4_post_sgl(
16851 phba, lpfc_ncmd->dma_phys_sgl,
16852 pdma_phys_sgl1, cur_xritag);
16854 /* Post error. Buffer unavailable. */
16855 lpfc_ncmd->flags |=
16856 LPFC_SBUF_NOT_POSTED;
16858 /* Post success. Bffer available. */
16859 lpfc_ncmd->flags &=
16860 ~LPFC_SBUF_NOT_POSTED;
16861 lpfc_ncmd->status = IOSTAT_SUCCESS;
16864 /* success, put on NVME buffer sgl list */
16865 list_add_tail(&lpfc_ncmd->list, &nvme_nblist);
16869 /* continue until a nembed page worth of sgls */
16873 /* post block of NVME buffer list sgls */
16874 status = lpfc_sli4_post_io_sgl_block(phba, &blck_nblist,
16877 /* don't reset xirtag due to hole in xri block */
16878 if (block_cnt == 0)
16879 last_xritag = NO_XRI;
16881 /* reset NVME buffer post count for next round of posting */
16884 /* put posted NVME buffer-sgl posted on NVME buffer sgl list */
16885 while (!list_empty(&blck_nblist)) {
16886 list_remove_head(&blck_nblist, lpfc_ncmd,
16887 struct lpfc_io_buf, list);
16889 /* Post error. Mark buffer unavailable. */
16890 lpfc_ncmd->flags |= LPFC_SBUF_NOT_POSTED;
16892 /* Post success, Mark buffer available. */
16893 lpfc_ncmd->flags &= ~LPFC_SBUF_NOT_POSTED;
16894 lpfc_ncmd->status = IOSTAT_SUCCESS;
16897 list_add_tail(&lpfc_ncmd->list, &nvme_nblist);
16900 /* Push NVME buffers with sgl posted to the available list */
16901 lpfc_io_buf_replenish(phba, &nvme_nblist);
16907 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
16908 * @phba: pointer to lpfc_hba struct that the frame was received on
16909 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
16911 * This function checks the fields in the @fc_hdr to see if the FC frame is a
16912 * valid type of frame that the LPFC driver will handle. This function will
16913 * return a zero if the frame is a valid frame or a non zero value when the
16914 * frame does not pass the check.
16917 lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
16919 /* make rctl_names static to save stack space */
16920 struct fc_vft_header *fc_vft_hdr;
16921 uint32_t *header = (uint32_t *) fc_hdr;
16923 #define FC_RCTL_MDS_DIAGS 0xF4
16925 switch (fc_hdr->fh_r_ctl) {
16926 case FC_RCTL_DD_UNCAT: /* uncategorized information */
16927 case FC_RCTL_DD_SOL_DATA: /* solicited data */
16928 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
16929 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
16930 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
16931 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
16932 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
16933 case FC_RCTL_DD_CMD_STATUS: /* command status */
16934 case FC_RCTL_ELS_REQ: /* extended link services request */
16935 case FC_RCTL_ELS_REP: /* extended link services reply */
16936 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
16937 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
16938 case FC_RCTL_BA_NOP: /* basic link service NOP */
16939 case FC_RCTL_BA_ABTS: /* basic link service abort */
16940 case FC_RCTL_BA_RMC: /* remove connection */
16941 case FC_RCTL_BA_ACC: /* basic accept */
16942 case FC_RCTL_BA_RJT: /* basic reject */
16943 case FC_RCTL_BA_PRMT:
16944 case FC_RCTL_ACK_1: /* acknowledge_1 */
16945 case FC_RCTL_ACK_0: /* acknowledge_0 */
16946 case FC_RCTL_P_RJT: /* port reject */
16947 case FC_RCTL_F_RJT: /* fabric reject */
16948 case FC_RCTL_P_BSY: /* port busy */
16949 case FC_RCTL_F_BSY: /* fabric busy to data frame */
16950 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
16951 case FC_RCTL_LCR: /* link credit reset */
16952 case FC_RCTL_MDS_DIAGS: /* MDS Diagnostics */
16953 case FC_RCTL_END: /* end */
16955 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
16956 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
16957 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
16958 return lpfc_fc_frame_check(phba, fc_hdr);
16963 switch (fc_hdr->fh_type) {
16976 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
16977 "2538 Received frame rctl:x%x, type:x%x, "
16978 "frame Data:%08x %08x %08x %08x %08x %08x %08x\n",
16979 fc_hdr->fh_r_ctl, fc_hdr->fh_type,
16980 be32_to_cpu(header[0]), be32_to_cpu(header[1]),
16981 be32_to_cpu(header[2]), be32_to_cpu(header[3]),
16982 be32_to_cpu(header[4]), be32_to_cpu(header[5]),
16983 be32_to_cpu(header[6]));
16986 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
16987 "2539 Dropped frame rctl:x%x type:x%x\n",
16988 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
16993 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
16994 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
16996 * This function processes the FC header to retrieve the VFI from the VF
16997 * header, if one exists. This function will return the VFI if one exists
16998 * or 0 if no VSAN Header exists.
17001 lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
17003 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
17005 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
17007 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
17011 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
17012 * @phba: Pointer to the HBA structure to search for the vport on
17013 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
17014 * @fcfi: The FC Fabric ID that the frame came from
17016 * This function searches the @phba for a vport that matches the content of the
17017 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
17018 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
17019 * returns the matching vport pointer or NULL if unable to match frame to a
17022 static struct lpfc_vport *
17023 lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
17024 uint16_t fcfi, uint32_t did)
17026 struct lpfc_vport **vports;
17027 struct lpfc_vport *vport = NULL;
17030 if (did == Fabric_DID)
17031 return phba->pport;
17032 if ((phba->pport->fc_flag & FC_PT2PT) &&
17033 !(phba->link_state == LPFC_HBA_READY))
17034 return phba->pport;
17036 vports = lpfc_create_vport_work_array(phba);
17037 if (vports != NULL) {
17038 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
17039 if (phba->fcf.fcfi == fcfi &&
17040 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
17041 vports[i]->fc_myDID == did) {
17047 lpfc_destroy_vport_work_array(phba, vports);
17052 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
17053 * @vport: The vport to work on.
17055 * This function updates the receive sequence time stamp for this vport. The
17056 * receive sequence time stamp indicates the time that the last frame of the
17057 * the sequence that has been idle for the longest amount of time was received.
17058 * the driver uses this time stamp to indicate if any received sequences have
17062 lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
17064 struct lpfc_dmabuf *h_buf;
17065 struct hbq_dmabuf *dmabuf = NULL;
17067 /* get the oldest sequence on the rcv list */
17068 h_buf = list_get_first(&vport->rcv_buffer_list,
17069 struct lpfc_dmabuf, list);
17072 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
17073 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
17077 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
17078 * @vport: The vport that the received sequences were sent to.
17080 * This function cleans up all outstanding received sequences. This is called
17081 * by the driver when a link event or user action invalidates all the received
17085 lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
17087 struct lpfc_dmabuf *h_buf, *hnext;
17088 struct lpfc_dmabuf *d_buf, *dnext;
17089 struct hbq_dmabuf *dmabuf = NULL;
17091 /* start with the oldest sequence on the rcv list */
17092 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
17093 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
17094 list_del_init(&dmabuf->hbuf.list);
17095 list_for_each_entry_safe(d_buf, dnext,
17096 &dmabuf->dbuf.list, list) {
17097 list_del_init(&d_buf->list);
17098 lpfc_in_buf_free(vport->phba, d_buf);
17100 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
17105 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
17106 * @vport: The vport that the received sequences were sent to.
17108 * This function determines whether any received sequences have timed out by
17109 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
17110 * indicates that there is at least one timed out sequence this routine will
17111 * go through the received sequences one at a time from most inactive to most
17112 * active to determine which ones need to be cleaned up. Once it has determined
17113 * that a sequence needs to be cleaned up it will simply free up the resources
17114 * without sending an abort.
17117 lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
17119 struct lpfc_dmabuf *h_buf, *hnext;
17120 struct lpfc_dmabuf *d_buf, *dnext;
17121 struct hbq_dmabuf *dmabuf = NULL;
17122 unsigned long timeout;
17123 int abort_count = 0;
17125 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
17126 vport->rcv_buffer_time_stamp);
17127 if (list_empty(&vport->rcv_buffer_list) ||
17128 time_before(jiffies, timeout))
17130 /* start with the oldest sequence on the rcv list */
17131 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
17132 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
17133 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
17134 dmabuf->time_stamp);
17135 if (time_before(jiffies, timeout))
17138 list_del_init(&dmabuf->hbuf.list);
17139 list_for_each_entry_safe(d_buf, dnext,
17140 &dmabuf->dbuf.list, list) {
17141 list_del_init(&d_buf->list);
17142 lpfc_in_buf_free(vport->phba, d_buf);
17144 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
17147 lpfc_update_rcv_time_stamp(vport);
17151 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
17152 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
17154 * This function searches through the existing incomplete sequences that have
17155 * been sent to this @vport. If the frame matches one of the incomplete
17156 * sequences then the dbuf in the @dmabuf is added to the list of frames that
17157 * make up that sequence. If no sequence is found that matches this frame then
17158 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
17159 * This function returns a pointer to the first dmabuf in the sequence list that
17160 * the frame was linked to.
17162 static struct hbq_dmabuf *
17163 lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
17165 struct fc_frame_header *new_hdr;
17166 struct fc_frame_header *temp_hdr;
17167 struct lpfc_dmabuf *d_buf;
17168 struct lpfc_dmabuf *h_buf;
17169 struct hbq_dmabuf *seq_dmabuf = NULL;
17170 struct hbq_dmabuf *temp_dmabuf = NULL;
17173 INIT_LIST_HEAD(&dmabuf->dbuf.list);
17174 dmabuf->time_stamp = jiffies;
17175 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
17177 /* Use the hdr_buf to find the sequence that this frame belongs to */
17178 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
17179 temp_hdr = (struct fc_frame_header *)h_buf->virt;
17180 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
17181 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
17182 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
17184 /* found a pending sequence that matches this frame */
17185 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
17190 * This indicates first frame received for this sequence.
17191 * Queue the buffer on the vport's rcv_buffer_list.
17193 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
17194 lpfc_update_rcv_time_stamp(vport);
17197 temp_hdr = seq_dmabuf->hbuf.virt;
17198 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
17199 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
17200 list_del_init(&seq_dmabuf->hbuf.list);
17201 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
17202 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
17203 lpfc_update_rcv_time_stamp(vport);
17206 /* move this sequence to the tail to indicate a young sequence */
17207 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
17208 seq_dmabuf->time_stamp = jiffies;
17209 lpfc_update_rcv_time_stamp(vport);
17210 if (list_empty(&seq_dmabuf->dbuf.list)) {
17211 temp_hdr = dmabuf->hbuf.virt;
17212 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
17215 /* find the correct place in the sequence to insert this frame */
17216 d_buf = list_entry(seq_dmabuf->dbuf.list.prev, typeof(*d_buf), list);
17218 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
17219 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
17221 * If the frame's sequence count is greater than the frame on
17222 * the list then insert the frame right after this frame
17224 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
17225 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
17226 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
17231 if (&d_buf->list == &seq_dmabuf->dbuf.list)
17233 d_buf = list_entry(d_buf->list.prev, typeof(*d_buf), list);
17242 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
17243 * @vport: pointer to a vitural port
17244 * @dmabuf: pointer to a dmabuf that describes the FC sequence
17246 * This function tries to abort from the partially assembed sequence, described
17247 * by the information from basic abbort @dmabuf. It checks to see whether such
17248 * partially assembled sequence held by the driver. If so, it shall free up all
17249 * the frames from the partially assembled sequence.
17252 * true -- if there is matching partially assembled sequence present and all
17253 * the frames freed with the sequence;
17254 * false -- if there is no matching partially assembled sequence present so
17255 * nothing got aborted in the lower layer driver
17258 lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
17259 struct hbq_dmabuf *dmabuf)
17261 struct fc_frame_header *new_hdr;
17262 struct fc_frame_header *temp_hdr;
17263 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
17264 struct hbq_dmabuf *seq_dmabuf = NULL;
17266 /* Use the hdr_buf to find the sequence that matches this frame */
17267 INIT_LIST_HEAD(&dmabuf->dbuf.list);
17268 INIT_LIST_HEAD(&dmabuf->hbuf.list);
17269 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
17270 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
17271 temp_hdr = (struct fc_frame_header *)h_buf->virt;
17272 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
17273 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
17274 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
17276 /* found a pending sequence that matches this frame */
17277 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
17281 /* Free up all the frames from the partially assembled sequence */
17283 list_for_each_entry_safe(d_buf, n_buf,
17284 &seq_dmabuf->dbuf.list, list) {
17285 list_del_init(&d_buf->list);
17286 lpfc_in_buf_free(vport->phba, d_buf);
17294 * lpfc_sli4_abort_ulp_seq - Abort assembled unsol sequence from ulp
17295 * @vport: pointer to a vitural port
17296 * @dmabuf: pointer to a dmabuf that describes the FC sequence
17298 * This function tries to abort from the assembed sequence from upper level
17299 * protocol, described by the information from basic abbort @dmabuf. It
17300 * checks to see whether such pending context exists at upper level protocol.
17301 * If so, it shall clean up the pending context.
17304 * true -- if there is matching pending context of the sequence cleaned
17306 * false -- if there is no matching pending context of the sequence present
17310 lpfc_sli4_abort_ulp_seq(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
17312 struct lpfc_hba *phba = vport->phba;
17315 /* Accepting abort at ulp with SLI4 only */
17316 if (phba->sli_rev < LPFC_SLI_REV4)
17319 /* Register all caring upper level protocols to attend abort */
17320 handled = lpfc_ct_handle_unsol_abort(phba, dmabuf);
17328 * lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler
17329 * @phba: Pointer to HBA context object.
17330 * @cmd_iocbq: pointer to the command iocbq structure.
17331 * @rsp_iocbq: pointer to the response iocbq structure.
17333 * This function handles the sequence abort response iocb command complete
17334 * event. It properly releases the memory allocated to the sequence abort
17338 lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba *phba,
17339 struct lpfc_iocbq *cmd_iocbq,
17340 struct lpfc_iocbq *rsp_iocbq)
17342 struct lpfc_nodelist *ndlp;
17345 ndlp = (struct lpfc_nodelist *)cmd_iocbq->context1;
17346 lpfc_nlp_put(ndlp);
17347 lpfc_nlp_not_used(ndlp);
17348 lpfc_sli_release_iocbq(phba, cmd_iocbq);
17351 /* Failure means BLS ABORT RSP did not get delivered to remote node*/
17352 if (rsp_iocbq && rsp_iocbq->iocb.ulpStatus)
17353 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17354 "3154 BLS ABORT RSP failed, data: x%x/x%x\n",
17355 rsp_iocbq->iocb.ulpStatus,
17356 rsp_iocbq->iocb.un.ulpWord[4]);
17360 * lpfc_sli4_xri_inrange - check xri is in range of xris owned by driver.
17361 * @phba: Pointer to HBA context object.
17362 * @xri: xri id in transaction.
17364 * This function validates the xri maps to the known range of XRIs allocated an
17365 * used by the driver.
17368 lpfc_sli4_xri_inrange(struct lpfc_hba *phba,
17373 for (i = 0; i < phba->sli4_hba.max_cfg_param.max_xri; i++) {
17374 if (xri == phba->sli4_hba.xri_ids[i])
17381 * lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort
17382 * @phba: Pointer to HBA context object.
17383 * @fc_hdr: pointer to a FC frame header.
17385 * This function sends a basic response to a previous unsol sequence abort
17386 * event after aborting the sequence handling.
17389 lpfc_sli4_seq_abort_rsp(struct lpfc_vport *vport,
17390 struct fc_frame_header *fc_hdr, bool aborted)
17392 struct lpfc_hba *phba = vport->phba;
17393 struct lpfc_iocbq *ctiocb = NULL;
17394 struct lpfc_nodelist *ndlp;
17395 uint16_t oxid, rxid, xri, lxri;
17396 uint32_t sid, fctl;
17400 if (!lpfc_is_link_up(phba))
17403 sid = sli4_sid_from_fc_hdr(fc_hdr);
17404 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
17405 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
17407 ndlp = lpfc_findnode_did(vport, sid);
17409 ndlp = lpfc_nlp_init(vport, sid);
17411 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
17412 "1268 Failed to allocate ndlp for "
17413 "oxid:x%x SID:x%x\n", oxid, sid);
17416 /* Put ndlp onto pport node list */
17417 lpfc_enqueue_node(vport, ndlp);
17418 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
17419 /* re-setup ndlp without removing from node list */
17420 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
17422 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
17423 "3275 Failed to active ndlp found "
17424 "for oxid:x%x SID:x%x\n", oxid, sid);
17429 /* Allocate buffer for rsp iocb */
17430 ctiocb = lpfc_sli_get_iocbq(phba);
17434 /* Extract the F_CTL field from FC_HDR */
17435 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
17437 icmd = &ctiocb->iocb;
17438 icmd->un.xseq64.bdl.bdeSize = 0;
17439 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
17440 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
17441 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
17442 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
17444 /* Fill in the rest of iocb fields */
17445 icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
17446 icmd->ulpBdeCount = 0;
17448 icmd->ulpClass = CLASS3;
17449 icmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
17450 ctiocb->context1 = lpfc_nlp_get(ndlp);
17452 ctiocb->vport = phba->pport;
17453 ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_rsp_cmpl;
17454 ctiocb->sli4_lxritag = NO_XRI;
17455 ctiocb->sli4_xritag = NO_XRI;
17457 if (fctl & FC_FC_EX_CTX)
17458 /* Exchange responder sent the abort so we
17464 lxri = lpfc_sli4_xri_inrange(phba, xri);
17465 if (lxri != NO_XRI)
17466 lpfc_set_rrq_active(phba, ndlp, lxri,
17467 (xri == oxid) ? rxid : oxid, 0);
17468 /* For BA_ABTS from exchange responder, if the logical xri with
17469 * the oxid maps to the FCP XRI range, the port no longer has
17470 * that exchange context, send a BLS_RJT. Override the IOCB for
17473 if ((fctl & FC_FC_EX_CTX) &&
17474 (lxri > lpfc_sli4_get_iocb_cnt(phba))) {
17475 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
17476 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
17477 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
17478 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
17481 /* If BA_ABTS failed to abort a partially assembled receive sequence,
17482 * the driver no longer has that exchange, send a BLS_RJT. Override
17483 * the IOCB for a BA_RJT.
17485 if (aborted == false) {
17486 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
17487 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
17488 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
17489 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
17492 if (fctl & FC_FC_EX_CTX) {
17493 /* ABTS sent by responder to CT exchange, construction
17494 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
17495 * field and RX_ID from ABTS for RX_ID field.
17497 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_RSP);
17499 /* ABTS sent by initiator to CT exchange, construction
17500 * of BA_ACC will need to allocate a new XRI as for the
17503 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_INT);
17505 bf_set(lpfc_abts_rxid, &icmd->un.bls_rsp, rxid);
17506 bf_set(lpfc_abts_oxid, &icmd->un.bls_rsp, oxid);
17508 /* Xmit CT abts response on exchange <xid> */
17509 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
17510 "1200 Send BLS cmd x%x on oxid x%x Data: x%x\n",
17511 icmd->un.xseq64.w5.hcsw.Rctl, oxid, phba->link_state);
17513 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
17514 if (rc == IOCB_ERROR) {
17515 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
17516 "2925 Failed to issue CT ABTS RSP x%x on "
17517 "xri x%x, Data x%x\n",
17518 icmd->un.xseq64.w5.hcsw.Rctl, oxid,
17520 lpfc_nlp_put(ndlp);
17521 ctiocb->context1 = NULL;
17522 lpfc_sli_release_iocbq(phba, ctiocb);
17527 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
17528 * @vport: Pointer to the vport on which this sequence was received
17529 * @dmabuf: pointer to a dmabuf that describes the FC sequence
17531 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
17532 * receive sequence is only partially assembed by the driver, it shall abort
17533 * the partially assembled frames for the sequence. Otherwise, if the
17534 * unsolicited receive sequence has been completely assembled and passed to
17535 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
17536 * unsolicited sequence has been aborted. After that, it will issue a basic
17537 * accept to accept the abort.
17540 lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
17541 struct hbq_dmabuf *dmabuf)
17543 struct lpfc_hba *phba = vport->phba;
17544 struct fc_frame_header fc_hdr;
17548 /* Make a copy of fc_hdr before the dmabuf being released */
17549 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
17550 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
17552 if (fctl & FC_FC_EX_CTX) {
17553 /* ABTS by responder to exchange, no cleanup needed */
17556 /* ABTS by initiator to exchange, need to do cleanup */
17557 aborted = lpfc_sli4_abort_partial_seq(vport, dmabuf);
17558 if (aborted == false)
17559 aborted = lpfc_sli4_abort_ulp_seq(vport, dmabuf);
17561 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17563 if (phba->nvmet_support) {
17564 lpfc_nvmet_rcv_unsol_abort(vport, &fc_hdr);
17568 /* Respond with BA_ACC or BA_RJT accordingly */
17569 lpfc_sli4_seq_abort_rsp(vport, &fc_hdr, aborted);
17573 * lpfc_seq_complete - Indicates if a sequence is complete
17574 * @dmabuf: pointer to a dmabuf that describes the FC sequence
17576 * This function checks the sequence, starting with the frame described by
17577 * @dmabuf, to see if all the frames associated with this sequence are present.
17578 * the frames associated with this sequence are linked to the @dmabuf using the
17579 * dbuf list. This function looks for two major things. 1) That the first frame
17580 * has a sequence count of zero. 2) There is a frame with last frame of sequence
17581 * set. 3) That there are no holes in the sequence count. The function will
17582 * return 1 when the sequence is complete, otherwise it will return 0.
17585 lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
17587 struct fc_frame_header *hdr;
17588 struct lpfc_dmabuf *d_buf;
17589 struct hbq_dmabuf *seq_dmabuf;
17593 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
17594 /* make sure first fame of sequence has a sequence count of zero */
17595 if (hdr->fh_seq_cnt != seq_count)
17597 fctl = (hdr->fh_f_ctl[0] << 16 |
17598 hdr->fh_f_ctl[1] << 8 |
17600 /* If last frame of sequence we can return success. */
17601 if (fctl & FC_FC_END_SEQ)
17603 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
17604 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
17605 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
17606 /* If there is a hole in the sequence count then fail. */
17607 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
17609 fctl = (hdr->fh_f_ctl[0] << 16 |
17610 hdr->fh_f_ctl[1] << 8 |
17612 /* If last frame of sequence we can return success. */
17613 if (fctl & FC_FC_END_SEQ)
17620 * lpfc_prep_seq - Prep sequence for ULP processing
17621 * @vport: Pointer to the vport on which this sequence was received
17622 * @dmabuf: pointer to a dmabuf that describes the FC sequence
17624 * This function takes a sequence, described by a list of frames, and creates
17625 * a list of iocbq structures to describe the sequence. This iocbq list will be
17626 * used to issue to the generic unsolicited sequence handler. This routine
17627 * returns a pointer to the first iocbq in the list. If the function is unable
17628 * to allocate an iocbq then it throw out the received frames that were not
17629 * able to be described and return a pointer to the first iocbq. If unable to
17630 * allocate any iocbqs (including the first) this function will return NULL.
17632 static struct lpfc_iocbq *
17633 lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
17635 struct hbq_dmabuf *hbq_buf;
17636 struct lpfc_dmabuf *d_buf, *n_buf;
17637 struct lpfc_iocbq *first_iocbq, *iocbq;
17638 struct fc_frame_header *fc_hdr;
17640 uint32_t len, tot_len;
17641 struct ulp_bde64 *pbde;
17643 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
17644 /* remove from receive buffer list */
17645 list_del_init(&seq_dmabuf->hbuf.list);
17646 lpfc_update_rcv_time_stamp(vport);
17647 /* get the Remote Port's SID */
17648 sid = sli4_sid_from_fc_hdr(fc_hdr);
17650 /* Get an iocbq struct to fill in. */
17651 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
17653 /* Initialize the first IOCB. */
17654 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
17655 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
17656 first_iocbq->vport = vport;
17658 /* Check FC Header to see what TYPE of frame we are rcv'ing */
17659 if (sli4_type_from_fc_hdr(fc_hdr) == FC_TYPE_ELS) {
17660 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_ELS64_CX;
17661 first_iocbq->iocb.un.rcvels.parmRo =
17662 sli4_did_from_fc_hdr(fc_hdr);
17663 first_iocbq->iocb.ulpPU = PARM_NPIV_DID;
17665 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
17666 first_iocbq->iocb.ulpContext = NO_XRI;
17667 first_iocbq->iocb.unsli3.rcvsli3.ox_id =
17668 be16_to_cpu(fc_hdr->fh_ox_id);
17669 /* iocbq is prepped for internal consumption. Physical vpi. */
17670 first_iocbq->iocb.unsli3.rcvsli3.vpi =
17671 vport->phba->vpi_ids[vport->vpi];
17672 /* put the first buffer into the first IOCBq */
17673 tot_len = bf_get(lpfc_rcqe_length,
17674 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
17676 first_iocbq->context2 = &seq_dmabuf->dbuf;
17677 first_iocbq->context3 = NULL;
17678 first_iocbq->iocb.ulpBdeCount = 1;
17679 if (tot_len > LPFC_DATA_BUF_SIZE)
17680 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
17681 LPFC_DATA_BUF_SIZE;
17683 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize = tot_len;
17685 first_iocbq->iocb.un.rcvels.remoteID = sid;
17687 first_iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
17689 iocbq = first_iocbq;
17691 * Each IOCBq can have two Buffers assigned, so go through the list
17692 * of buffers for this sequence and save two buffers in each IOCBq
17694 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
17696 lpfc_in_buf_free(vport->phba, d_buf);
17699 if (!iocbq->context3) {
17700 iocbq->context3 = d_buf;
17701 iocbq->iocb.ulpBdeCount++;
17702 /* We need to get the size out of the right CQE */
17703 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
17704 len = bf_get(lpfc_rcqe_length,
17705 &hbq_buf->cq_event.cqe.rcqe_cmpl);
17706 pbde = (struct ulp_bde64 *)
17707 &iocbq->iocb.unsli3.sli3Words[4];
17708 if (len > LPFC_DATA_BUF_SIZE)
17709 pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
17711 pbde->tus.f.bdeSize = len;
17713 iocbq->iocb.unsli3.rcvsli3.acc_len += len;
17716 iocbq = lpfc_sli_get_iocbq(vport->phba);
17719 first_iocbq->iocb.ulpStatus =
17720 IOSTAT_FCP_RSP_ERROR;
17721 first_iocbq->iocb.un.ulpWord[4] =
17722 IOERR_NO_RESOURCES;
17724 lpfc_in_buf_free(vport->phba, d_buf);
17727 /* We need to get the size out of the right CQE */
17728 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
17729 len = bf_get(lpfc_rcqe_length,
17730 &hbq_buf->cq_event.cqe.rcqe_cmpl);
17731 iocbq->context2 = d_buf;
17732 iocbq->context3 = NULL;
17733 iocbq->iocb.ulpBdeCount = 1;
17734 if (len > LPFC_DATA_BUF_SIZE)
17735 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
17736 LPFC_DATA_BUF_SIZE;
17738 iocbq->iocb.un.cont64[0].tus.f.bdeSize = len;
17741 iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
17743 iocbq->iocb.un.rcvels.remoteID = sid;
17744 list_add_tail(&iocbq->list, &first_iocbq->list);
17747 return first_iocbq;
17751 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
17752 struct hbq_dmabuf *seq_dmabuf)
17754 struct fc_frame_header *fc_hdr;
17755 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
17756 struct lpfc_hba *phba = vport->phba;
17758 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
17759 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
17761 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17762 "2707 Ring %d handler: Failed to allocate "
17763 "iocb Rctl x%x Type x%x received\n",
17765 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
17768 if (!lpfc_complete_unsol_iocb(phba,
17769 phba->sli4_hba.els_wq->pring,
17770 iocbq, fc_hdr->fh_r_ctl,
17772 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17773 "2540 Ring %d handler: unexpected Rctl "
17774 "x%x Type x%x received\n",
17776 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
17778 /* Free iocb created in lpfc_prep_seq */
17779 list_for_each_entry_safe(curr_iocb, next_iocb,
17780 &iocbq->list, list) {
17781 list_del_init(&curr_iocb->list);
17782 lpfc_sli_release_iocbq(phba, curr_iocb);
17784 lpfc_sli_release_iocbq(phba, iocbq);
17788 lpfc_sli4_mds_loopback_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
17789 struct lpfc_iocbq *rspiocb)
17791 struct lpfc_dmabuf *pcmd = cmdiocb->context2;
17793 if (pcmd && pcmd->virt)
17794 dma_pool_free(phba->lpfc_drb_pool, pcmd->virt, pcmd->phys);
17796 lpfc_sli_release_iocbq(phba, cmdiocb);
17797 lpfc_drain_txq(phba);
17801 lpfc_sli4_handle_mds_loopback(struct lpfc_vport *vport,
17802 struct hbq_dmabuf *dmabuf)
17804 struct fc_frame_header *fc_hdr;
17805 struct lpfc_hba *phba = vport->phba;
17806 struct lpfc_iocbq *iocbq = NULL;
17807 union lpfc_wqe *wqe;
17808 struct lpfc_dmabuf *pcmd = NULL;
17809 uint32_t frame_len;
17811 unsigned long iflags;
17813 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
17814 frame_len = bf_get(lpfc_rcqe_length, &dmabuf->cq_event.cqe.rcqe_cmpl);
17816 /* Send the received frame back */
17817 iocbq = lpfc_sli_get_iocbq(phba);
17819 /* Queue cq event and wakeup worker thread to process it */
17820 spin_lock_irqsave(&phba->hbalock, iflags);
17821 list_add_tail(&dmabuf->cq_event.list,
17822 &phba->sli4_hba.sp_queue_event);
17823 phba->hba_flag |= HBA_SP_QUEUE_EVT;
17824 spin_unlock_irqrestore(&phba->hbalock, iflags);
17825 lpfc_worker_wake_up(phba);
17829 /* Allocate buffer for command payload */
17830 pcmd = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
17832 pcmd->virt = dma_pool_alloc(phba->lpfc_drb_pool, GFP_KERNEL,
17834 if (!pcmd || !pcmd->virt)
17837 INIT_LIST_HEAD(&pcmd->list);
17839 /* copyin the payload */
17840 memcpy(pcmd->virt, dmabuf->dbuf.virt, frame_len);
17842 /* fill in BDE's for command */
17843 iocbq->iocb.un.xseq64.bdl.addrHigh = putPaddrHigh(pcmd->phys);
17844 iocbq->iocb.un.xseq64.bdl.addrLow = putPaddrLow(pcmd->phys);
17845 iocbq->iocb.un.xseq64.bdl.bdeFlags = BUFF_TYPE_BDE_64;
17846 iocbq->iocb.un.xseq64.bdl.bdeSize = frame_len;
17848 iocbq->context2 = pcmd;
17849 iocbq->vport = vport;
17850 iocbq->iocb_flag &= ~LPFC_FIP_ELS_ID_MASK;
17851 iocbq->iocb_flag |= LPFC_USE_FCPWQIDX;
17854 * Setup rest of the iocb as though it were a WQE
17855 * Build the SEND_FRAME WQE
17857 wqe = (union lpfc_wqe *)&iocbq->iocb;
17859 wqe->send_frame.frame_len = frame_len;
17860 wqe->send_frame.fc_hdr_wd0 = be32_to_cpu(*((uint32_t *)fc_hdr));
17861 wqe->send_frame.fc_hdr_wd1 = be32_to_cpu(*((uint32_t *)fc_hdr + 1));
17862 wqe->send_frame.fc_hdr_wd2 = be32_to_cpu(*((uint32_t *)fc_hdr + 2));
17863 wqe->send_frame.fc_hdr_wd3 = be32_to_cpu(*((uint32_t *)fc_hdr + 3));
17864 wqe->send_frame.fc_hdr_wd4 = be32_to_cpu(*((uint32_t *)fc_hdr + 4));
17865 wqe->send_frame.fc_hdr_wd5 = be32_to_cpu(*((uint32_t *)fc_hdr + 5));
17867 iocbq->iocb.ulpCommand = CMD_SEND_FRAME;
17868 iocbq->iocb.ulpLe = 1;
17869 iocbq->iocb_cmpl = lpfc_sli4_mds_loopback_cmpl;
17870 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocbq, 0);
17871 if (rc == IOCB_ERROR)
17874 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17878 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
17879 "2023 Unable to process MDS loopback frame\n");
17880 if (pcmd && pcmd->virt)
17881 dma_pool_free(phba->lpfc_drb_pool, pcmd->virt, pcmd->phys);
17884 lpfc_sli_release_iocbq(phba, iocbq);
17885 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17889 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
17890 * @phba: Pointer to HBA context object.
17892 * This function is called with no lock held. This function processes all
17893 * the received buffers and gives it to upper layers when a received buffer
17894 * indicates that it is the final frame in the sequence. The interrupt
17895 * service routine processes received buffers at interrupt contexts.
17896 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
17897 * appropriate receive function when the final frame in a sequence is received.
17900 lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
17901 struct hbq_dmabuf *dmabuf)
17903 struct hbq_dmabuf *seq_dmabuf;
17904 struct fc_frame_header *fc_hdr;
17905 struct lpfc_vport *vport;
17909 /* Process each received buffer */
17910 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
17912 if (fc_hdr->fh_r_ctl == FC_RCTL_MDS_DIAGS ||
17913 fc_hdr->fh_r_ctl == FC_RCTL_DD_UNSOL_DATA) {
17914 vport = phba->pport;
17915 /* Handle MDS Loopback frames */
17916 lpfc_sli4_handle_mds_loopback(vport, dmabuf);
17920 /* check to see if this a valid type of frame */
17921 if (lpfc_fc_frame_check(phba, fc_hdr)) {
17922 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17926 if ((bf_get(lpfc_cqe_code,
17927 &dmabuf->cq_event.cqe.rcqe_cmpl) == CQE_CODE_RECEIVE_V1))
17928 fcfi = bf_get(lpfc_rcqe_fcf_id_v1,
17929 &dmabuf->cq_event.cqe.rcqe_cmpl);
17931 fcfi = bf_get(lpfc_rcqe_fcf_id,
17932 &dmabuf->cq_event.cqe.rcqe_cmpl);
17934 if (fc_hdr->fh_r_ctl == 0xF4 && fc_hdr->fh_type == 0xFF) {
17935 vport = phba->pport;
17936 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
17937 "2023 MDS Loopback %d bytes\n",
17938 bf_get(lpfc_rcqe_length,
17939 &dmabuf->cq_event.cqe.rcqe_cmpl));
17940 /* Handle MDS Loopback frames */
17941 lpfc_sli4_handle_mds_loopback(vport, dmabuf);
17945 /* d_id this frame is directed to */
17946 did = sli4_did_from_fc_hdr(fc_hdr);
17948 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi, did);
17950 /* throw out the frame */
17951 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17955 /* vport is registered unless we rcv a FLOGI directed to Fabric_DID */
17956 if (!(vport->vpi_state & LPFC_VPI_REGISTERED) &&
17957 (did != Fabric_DID)) {
17959 * Throw out the frame if we are not pt2pt.
17960 * The pt2pt protocol allows for discovery frames
17961 * to be received without a registered VPI.
17963 if (!(vport->fc_flag & FC_PT2PT) ||
17964 (phba->link_state == LPFC_HBA_READY)) {
17965 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17970 /* Handle the basic abort sequence (BA_ABTS) event */
17971 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
17972 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
17976 /* Link this frame */
17977 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
17979 /* unable to add frame to vport - throw it out */
17980 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17983 /* If not last frame in sequence continue processing frames. */
17984 if (!lpfc_seq_complete(seq_dmabuf))
17987 /* Send the complete sequence to the upper layer protocol */
17988 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
17992 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
17993 * @phba: pointer to lpfc hba data structure.
17995 * This routine is invoked to post rpi header templates to the
17996 * HBA consistent with the SLI-4 interface spec. This routine
17997 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
17998 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
18000 * This routine does not require any locks. It's usage is expected
18001 * to be driver load or reset recovery when the driver is
18006 * -EIO - The mailbox failed to complete successfully.
18007 * When this error occurs, the driver is not guaranteed
18008 * to have any rpi regions posted to the device and
18009 * must either attempt to repost the regions or take a
18013 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
18015 struct lpfc_rpi_hdr *rpi_page;
18019 /* SLI4 ports that support extents do not require RPI headers. */
18020 if (!phba->sli4_hba.rpi_hdrs_in_use)
18022 if (phba->sli4_hba.extents_in_use)
18025 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
18027 * Assign the rpi headers a physical rpi only if the driver
18028 * has not initialized those resources. A port reset only
18029 * needs the headers posted.
18031 if (bf_get(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags) !=
18033 rpi_page->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
18035 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
18036 if (rc != MBX_SUCCESS) {
18037 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18038 "2008 Error %d posting all rpi "
18046 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags,
18047 LPFC_RPI_RSRC_RDY);
18052 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
18053 * @phba: pointer to lpfc hba data structure.
18054 * @rpi_page: pointer to the rpi memory region.
18056 * This routine is invoked to post a single rpi header to the
18057 * HBA consistent with the SLI-4 interface spec. This memory region
18058 * maps up to 64 rpi context regions.
18062 * -ENOMEM - No available memory
18063 * -EIO - The mailbox failed to complete successfully.
18066 lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
18068 LPFC_MBOXQ_t *mboxq;
18069 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
18071 uint32_t shdr_status, shdr_add_status;
18072 union lpfc_sli4_cfg_shdr *shdr;
18074 /* SLI4 ports that support extents do not require RPI headers. */
18075 if (!phba->sli4_hba.rpi_hdrs_in_use)
18077 if (phba->sli4_hba.extents_in_use)
18080 /* The port is notified of the header region via a mailbox command. */
18081 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18083 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18084 "2001 Unable to allocate memory for issuing "
18085 "SLI_CONFIG_SPECIAL mailbox command\n");
18089 /* Post all rpi memory regions to the port. */
18090 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
18091 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
18092 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
18093 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
18094 sizeof(struct lpfc_sli4_cfg_mhdr),
18095 LPFC_SLI4_MBX_EMBED);
18098 /* Post the physical rpi to the port for this rpi header. */
18099 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
18100 rpi_page->start_rpi);
18101 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
18102 hdr_tmpl, rpi_page->page_count);
18104 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
18105 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
18106 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
18107 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
18108 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
18109 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
18110 if (rc != MBX_TIMEOUT)
18111 mempool_free(mboxq, phba->mbox_mem_pool);
18112 if (shdr_status || shdr_add_status || rc) {
18113 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18114 "2514 POST_RPI_HDR mailbox failed with "
18115 "status x%x add_status x%x, mbx status x%x\n",
18116 shdr_status, shdr_add_status, rc);
18120 * The next_rpi stores the next logical module-64 rpi value used
18121 * to post physical rpis in subsequent rpi postings.
18123 spin_lock_irq(&phba->hbalock);
18124 phba->sli4_hba.next_rpi = rpi_page->next_rpi;
18125 spin_unlock_irq(&phba->hbalock);
18131 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
18132 * @phba: pointer to lpfc hba data structure.
18134 * This routine is invoked to post rpi header templates to the
18135 * HBA consistent with the SLI-4 interface spec. This routine
18136 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
18137 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
18140 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
18141 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
18144 lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
18147 uint16_t max_rpi, rpi_limit;
18148 uint16_t rpi_remaining, lrpi = 0;
18149 struct lpfc_rpi_hdr *rpi_hdr;
18150 unsigned long iflag;
18153 * Fetch the next logical rpi. Because this index is logical,
18154 * the driver starts at 0 each time.
18156 spin_lock_irqsave(&phba->hbalock, iflag);
18157 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
18158 rpi_limit = phba->sli4_hba.next_rpi;
18160 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, 0);
18161 if (rpi >= rpi_limit)
18162 rpi = LPFC_RPI_ALLOC_ERROR;
18164 set_bit(rpi, phba->sli4_hba.rpi_bmask);
18165 phba->sli4_hba.max_cfg_param.rpi_used++;
18166 phba->sli4_hba.rpi_count++;
18168 lpfc_printf_log(phba, KERN_INFO,
18169 LOG_NODE | LOG_DISCOVERY,
18170 "0001 Allocated rpi:x%x max:x%x lim:x%x\n",
18171 (int) rpi, max_rpi, rpi_limit);
18174 * Don't try to allocate more rpi header regions if the device limit
18175 * has been exhausted.
18177 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
18178 (phba->sli4_hba.rpi_count >= max_rpi)) {
18179 spin_unlock_irqrestore(&phba->hbalock, iflag);
18184 * RPI header postings are not required for SLI4 ports capable of
18187 if (!phba->sli4_hba.rpi_hdrs_in_use) {
18188 spin_unlock_irqrestore(&phba->hbalock, iflag);
18193 * If the driver is running low on rpi resources, allocate another
18194 * page now. Note that the next_rpi value is used because
18195 * it represents how many are actually in use whereas max_rpi notes
18196 * how many are supported max by the device.
18198 rpi_remaining = phba->sli4_hba.next_rpi - phba->sli4_hba.rpi_count;
18199 spin_unlock_irqrestore(&phba->hbalock, iflag);
18200 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
18201 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
18203 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18204 "2002 Error Could not grow rpi "
18207 lrpi = rpi_hdr->start_rpi;
18208 rpi_hdr->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
18209 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
18217 * lpfc_sli4_free_rpi - Release an rpi for reuse.
18218 * @phba: pointer to lpfc hba data structure.
18220 * This routine is invoked to release an rpi to the pool of
18221 * available rpis maintained by the driver.
18224 __lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
18226 if (test_and_clear_bit(rpi, phba->sli4_hba.rpi_bmask)) {
18227 phba->sli4_hba.rpi_count--;
18228 phba->sli4_hba.max_cfg_param.rpi_used--;
18230 lpfc_printf_log(phba, KERN_INFO,
18231 LOG_NODE | LOG_DISCOVERY,
18232 "2016 rpi %x not inuse\n",
18238 * lpfc_sli4_free_rpi - Release an rpi for reuse.
18239 * @phba: pointer to lpfc hba data structure.
18241 * This routine is invoked to release an rpi to the pool of
18242 * available rpis maintained by the driver.
18245 lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
18247 spin_lock_irq(&phba->hbalock);
18248 __lpfc_sli4_free_rpi(phba, rpi);
18249 spin_unlock_irq(&phba->hbalock);
18253 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
18254 * @phba: pointer to lpfc hba data structure.
18256 * This routine is invoked to remove the memory region that
18257 * provided rpi via a bitmask.
18260 lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
18262 kfree(phba->sli4_hba.rpi_bmask);
18263 kfree(phba->sli4_hba.rpi_ids);
18264 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
18268 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
18269 * @phba: pointer to lpfc hba data structure.
18271 * This routine is invoked to remove the memory region that
18272 * provided rpi via a bitmask.
18275 lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp,
18276 void (*cmpl)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *arg)
18278 LPFC_MBOXQ_t *mboxq;
18279 struct lpfc_hba *phba = ndlp->phba;
18282 /* The port is notified of the header region via a mailbox command. */
18283 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18287 /* Post all rpi memory regions to the port. */
18288 lpfc_resume_rpi(mboxq, ndlp);
18290 mboxq->mbox_cmpl = cmpl;
18291 mboxq->ctx_buf = arg;
18292 mboxq->ctx_ndlp = ndlp;
18294 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
18295 mboxq->vport = ndlp->vport;
18296 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
18297 if (rc == MBX_NOT_FINISHED) {
18298 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18299 "2010 Resume RPI Mailbox failed "
18300 "status %d, mbxStatus x%x\n", rc,
18301 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
18302 mempool_free(mboxq, phba->mbox_mem_pool);
18309 * lpfc_sli4_init_vpi - Initialize a vpi with the port
18310 * @vport: Pointer to the vport for which the vpi is being initialized
18312 * This routine is invoked to activate a vpi with the port.
18316 * -Evalue otherwise
18319 lpfc_sli4_init_vpi(struct lpfc_vport *vport)
18321 LPFC_MBOXQ_t *mboxq;
18323 int retval = MBX_SUCCESS;
18325 struct lpfc_hba *phba = vport->phba;
18326 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18329 lpfc_init_vpi(phba, mboxq, vport->vpi);
18330 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
18331 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
18332 if (rc != MBX_SUCCESS) {
18333 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
18334 "2022 INIT VPI Mailbox failed "
18335 "status %d, mbxStatus x%x\n", rc,
18336 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
18339 if (rc != MBX_TIMEOUT)
18340 mempool_free(mboxq, vport->phba->mbox_mem_pool);
18346 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
18347 * @phba: pointer to lpfc hba data structure.
18348 * @mboxq: Pointer to mailbox object.
18350 * This routine is invoked to manually add a single FCF record. The caller
18351 * must pass a completely initialized FCF_Record. This routine takes
18352 * care of the nonembedded mailbox operations.
18355 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
18358 union lpfc_sli4_cfg_shdr *shdr;
18359 uint32_t shdr_status, shdr_add_status;
18361 virt_addr = mboxq->sge_array->addr[0];
18362 /* The IOCTL status is embedded in the mailbox subheader. */
18363 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
18364 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
18365 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
18367 if ((shdr_status || shdr_add_status) &&
18368 (shdr_status != STATUS_FCF_IN_USE))
18369 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18370 "2558 ADD_FCF_RECORD mailbox failed with "
18371 "status x%x add_status x%x\n",
18372 shdr_status, shdr_add_status);
18374 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18378 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
18379 * @phba: pointer to lpfc hba data structure.
18380 * @fcf_record: pointer to the initialized fcf record to add.
18382 * This routine is invoked to manually add a single FCF record. The caller
18383 * must pass a completely initialized FCF_Record. This routine takes
18384 * care of the nonembedded mailbox operations.
18387 lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
18390 LPFC_MBOXQ_t *mboxq;
18393 struct lpfc_mbx_sge sge;
18394 uint32_t alloc_len, req_len;
18397 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18399 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18400 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
18404 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
18407 /* Allocate DMA memory and set up the non-embedded mailbox command */
18408 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
18409 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
18410 req_len, LPFC_SLI4_MBX_NEMBED);
18411 if (alloc_len < req_len) {
18412 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18413 "2523 Allocated DMA memory size (x%x) is "
18414 "less than the requested DMA memory "
18415 "size (x%x)\n", alloc_len, req_len);
18416 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18421 * Get the first SGE entry from the non-embedded DMA memory. This
18422 * routine only uses a single SGE.
18424 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
18425 virt_addr = mboxq->sge_array->addr[0];
18427 * Configure the FCF record for FCFI 0. This is the driver's
18428 * hardcoded default and gets used in nonFIP mode.
18430 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
18431 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
18432 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
18435 * Copy the fcf_index and the FCF Record Data. The data starts after
18436 * the FCoE header plus word10. The data copy needs to be endian
18439 bytep += sizeof(uint32_t);
18440 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
18441 mboxq->vport = phba->pport;
18442 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
18443 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
18444 if (rc == MBX_NOT_FINISHED) {
18445 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18446 "2515 ADD_FCF_RECORD mailbox failed with "
18447 "status 0x%x\n", rc);
18448 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18457 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
18458 * @phba: pointer to lpfc hba data structure.
18459 * @fcf_record: pointer to the fcf record to write the default data.
18460 * @fcf_index: FCF table entry index.
18462 * This routine is invoked to build the driver's default FCF record. The
18463 * values used are hardcoded. This routine handles memory initialization.
18467 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
18468 struct fcf_record *fcf_record,
18469 uint16_t fcf_index)
18471 memset(fcf_record, 0, sizeof(struct fcf_record));
18472 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
18473 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
18474 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
18475 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
18476 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
18477 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
18478 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
18479 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
18480 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
18481 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
18482 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
18483 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
18484 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
18485 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
18486 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
18487 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
18488 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
18489 /* Set the VLAN bit map */
18490 if (phba->valid_vlan) {
18491 fcf_record->vlan_bitmap[phba->vlan_id / 8]
18492 = 1 << (phba->vlan_id % 8);
18497 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
18498 * @phba: pointer to lpfc hba data structure.
18499 * @fcf_index: FCF table entry offset.
18501 * This routine is invoked to scan the entire FCF table by reading FCF
18502 * record and processing it one at a time starting from the @fcf_index
18503 * for initial FCF discovery or fast FCF failover rediscovery.
18505 * Return 0 if the mailbox command is submitted successfully, none 0
18509 lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
18512 LPFC_MBOXQ_t *mboxq;
18514 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
18515 phba->fcoe_cvl_eventtag_attn = phba->fcoe_cvl_eventtag;
18516 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18518 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18519 "2000 Failed to allocate mbox for "
18522 goto fail_fcf_scan;
18524 /* Construct the read FCF record mailbox command */
18525 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
18528 goto fail_fcf_scan;
18530 /* Issue the mailbox command asynchronously */
18531 mboxq->vport = phba->pport;
18532 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
18534 spin_lock_irq(&phba->hbalock);
18535 phba->hba_flag |= FCF_TS_INPROG;
18536 spin_unlock_irq(&phba->hbalock);
18538 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
18539 if (rc == MBX_NOT_FINISHED)
18542 /* Reset eligible FCF count for new scan */
18543 if (fcf_index == LPFC_FCOE_FCF_GET_FIRST)
18544 phba->fcf.eligible_fcf_cnt = 0;
18550 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18551 /* FCF scan failed, clear FCF_TS_INPROG flag */
18552 spin_lock_irq(&phba->hbalock);
18553 phba->hba_flag &= ~FCF_TS_INPROG;
18554 spin_unlock_irq(&phba->hbalock);
18560 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
18561 * @phba: pointer to lpfc hba data structure.
18562 * @fcf_index: FCF table entry offset.
18564 * This routine is invoked to read an FCF record indicated by @fcf_index
18565 * and to use it for FLOGI roundrobin FCF failover.
18567 * Return 0 if the mailbox command is submitted successfully, none 0
18571 lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
18574 LPFC_MBOXQ_t *mboxq;
18576 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18578 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
18579 "2763 Failed to allocate mbox for "
18582 goto fail_fcf_read;
18584 /* Construct the read FCF record mailbox command */
18585 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
18588 goto fail_fcf_read;
18590 /* Issue the mailbox command asynchronously */
18591 mboxq->vport = phba->pport;
18592 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
18593 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
18594 if (rc == MBX_NOT_FINISHED)
18600 if (error && mboxq)
18601 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18606 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
18607 * @phba: pointer to lpfc hba data structure.
18608 * @fcf_index: FCF table entry offset.
18610 * This routine is invoked to read an FCF record indicated by @fcf_index to
18611 * determine whether it's eligible for FLOGI roundrobin failover list.
18613 * Return 0 if the mailbox command is submitted successfully, none 0
18617 lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
18620 LPFC_MBOXQ_t *mboxq;
18622 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18624 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
18625 "2758 Failed to allocate mbox for "
18628 goto fail_fcf_read;
18630 /* Construct the read FCF record mailbox command */
18631 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
18634 goto fail_fcf_read;
18636 /* Issue the mailbox command asynchronously */
18637 mboxq->vport = phba->pport;
18638 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
18639 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
18640 if (rc == MBX_NOT_FINISHED)
18646 if (error && mboxq)
18647 lpfc_sli4_mbox_cmd_free(phba, mboxq);
18652 * lpfc_check_next_fcf_pri_level
18653 * phba pointer to the lpfc_hba struct for this port.
18654 * This routine is called from the lpfc_sli4_fcf_rr_next_index_get
18655 * routine when the rr_bmask is empty. The FCF indecies are put into the
18656 * rr_bmask based on their priority level. Starting from the highest priority
18657 * to the lowest. The most likely FCF candidate will be in the highest
18658 * priority group. When this routine is called it searches the fcf_pri list for
18659 * next lowest priority group and repopulates the rr_bmask with only those
18662 * 1=success 0=failure
18665 lpfc_check_next_fcf_pri_level(struct lpfc_hba *phba)
18667 uint16_t next_fcf_pri;
18668 uint16_t last_index;
18669 struct lpfc_fcf_pri *fcf_pri;
18673 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
18674 LPFC_SLI4_FCF_TBL_INDX_MAX);
18675 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
18676 "3060 Last IDX %d\n", last_index);
18678 /* Verify the priority list has 2 or more entries */
18679 spin_lock_irq(&phba->hbalock);
18680 if (list_empty(&phba->fcf.fcf_pri_list) ||
18681 list_is_singular(&phba->fcf.fcf_pri_list)) {
18682 spin_unlock_irq(&phba->hbalock);
18683 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
18684 "3061 Last IDX %d\n", last_index);
18685 return 0; /* Empty rr list */
18687 spin_unlock_irq(&phba->hbalock);
18691 * Clear the rr_bmask and set all of the bits that are at this
18694 memset(phba->fcf.fcf_rr_bmask, 0,
18695 sizeof(*phba->fcf.fcf_rr_bmask));
18696 spin_lock_irq(&phba->hbalock);
18697 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
18698 if (fcf_pri->fcf_rec.flag & LPFC_FCF_FLOGI_FAILED)
18701 * the 1st priority that has not FLOGI failed
18702 * will be the highest.
18705 next_fcf_pri = fcf_pri->fcf_rec.priority;
18706 spin_unlock_irq(&phba->hbalock);
18707 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
18708 rc = lpfc_sli4_fcf_rr_index_set(phba,
18709 fcf_pri->fcf_rec.fcf_index);
18713 spin_lock_irq(&phba->hbalock);
18716 * if next_fcf_pri was not set above and the list is not empty then
18717 * we have failed flogis on all of them. So reset flogi failed
18718 * and start at the beginning.
18720 if (!next_fcf_pri && !list_empty(&phba->fcf.fcf_pri_list)) {
18721 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
18722 fcf_pri->fcf_rec.flag &= ~LPFC_FCF_FLOGI_FAILED;
18724 * the 1st priority that has not FLOGI failed
18725 * will be the highest.
18728 next_fcf_pri = fcf_pri->fcf_rec.priority;
18729 spin_unlock_irq(&phba->hbalock);
18730 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
18731 rc = lpfc_sli4_fcf_rr_index_set(phba,
18732 fcf_pri->fcf_rec.fcf_index);
18736 spin_lock_irq(&phba->hbalock);
18740 spin_unlock_irq(&phba->hbalock);
18745 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
18746 * @phba: pointer to lpfc hba data structure.
18748 * This routine is to get the next eligible FCF record index in a round
18749 * robin fashion. If the next eligible FCF record index equals to the
18750 * initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
18751 * shall be returned, otherwise, the next eligible FCF record's index
18752 * shall be returned.
18755 lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
18757 uint16_t next_fcf_index;
18760 /* Search start from next bit of currently registered FCF index */
18761 next_fcf_index = phba->fcf.current_rec.fcf_indx;
18764 /* Determine the next fcf index to check */
18765 next_fcf_index = (next_fcf_index + 1) % LPFC_SLI4_FCF_TBL_INDX_MAX;
18766 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
18767 LPFC_SLI4_FCF_TBL_INDX_MAX,
18770 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
18771 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
18773 * If we have wrapped then we need to clear the bits that
18774 * have been tested so that we can detect when we should
18775 * change the priority level.
18777 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
18778 LPFC_SLI4_FCF_TBL_INDX_MAX, 0);
18782 /* Check roundrobin failover list empty condition */
18783 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX ||
18784 next_fcf_index == phba->fcf.current_rec.fcf_indx) {
18786 * If next fcf index is not found check if there are lower
18787 * Priority level fcf's in the fcf_priority list.
18788 * Set up the rr_bmask with all of the avaiable fcf bits
18789 * at that level and continue the selection process.
18791 if (lpfc_check_next_fcf_pri_level(phba))
18792 goto initial_priority;
18793 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
18794 "2844 No roundrobin failover FCF available\n");
18796 return LPFC_FCOE_FCF_NEXT_NONE;
18799 if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX &&
18800 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag &
18801 LPFC_FCF_FLOGI_FAILED) {
18802 if (list_is_singular(&phba->fcf.fcf_pri_list))
18803 return LPFC_FCOE_FCF_NEXT_NONE;
18805 goto next_priority;
18808 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
18809 "2845 Get next roundrobin failover FCF (x%x)\n",
18812 return next_fcf_index;
18816 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
18817 * @phba: pointer to lpfc hba data structure.
18819 * This routine sets the FCF record index in to the eligible bmask for
18820 * roundrobin failover search. It checks to make sure that the index
18821 * does not go beyond the range of the driver allocated bmask dimension
18822 * before setting the bit.
18824 * Returns 0 if the index bit successfully set, otherwise, it returns
18828 lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
18830 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
18831 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
18832 "2610 FCF (x%x) reached driver's book "
18833 "keeping dimension:x%x\n",
18834 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
18837 /* Set the eligible FCF record index bmask */
18838 set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
18840 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
18841 "2790 Set FCF (x%x) to roundrobin FCF failover "
18842 "bmask\n", fcf_index);
18848 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
18849 * @phba: pointer to lpfc hba data structure.
18851 * This routine clears the FCF record index from the eligible bmask for
18852 * roundrobin failover search. It checks to make sure that the index
18853 * does not go beyond the range of the driver allocated bmask dimension
18854 * before clearing the bit.
18857 lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
18859 struct lpfc_fcf_pri *fcf_pri, *fcf_pri_next;
18860 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
18861 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
18862 "2762 FCF (x%x) reached driver's book "
18863 "keeping dimension:x%x\n",
18864 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
18867 /* Clear the eligible FCF record index bmask */
18868 spin_lock_irq(&phba->hbalock);
18869 list_for_each_entry_safe(fcf_pri, fcf_pri_next, &phba->fcf.fcf_pri_list,
18871 if (fcf_pri->fcf_rec.fcf_index == fcf_index) {
18872 list_del_init(&fcf_pri->list);
18876 spin_unlock_irq(&phba->hbalock);
18877 clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
18879 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
18880 "2791 Clear FCF (x%x) from roundrobin failover "
18881 "bmask\n", fcf_index);
18885 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
18886 * @phba: pointer to lpfc hba data structure.
18888 * This routine is the completion routine for the rediscover FCF table mailbox
18889 * command. If the mailbox command returned failure, it will try to stop the
18890 * FCF rediscover wait timer.
18893 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
18895 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
18896 uint32_t shdr_status, shdr_add_status;
18898 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
18900 shdr_status = bf_get(lpfc_mbox_hdr_status,
18901 &redisc_fcf->header.cfg_shdr.response);
18902 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
18903 &redisc_fcf->header.cfg_shdr.response);
18904 if (shdr_status || shdr_add_status) {
18905 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
18906 "2746 Requesting for FCF rediscovery failed "
18907 "status x%x add_status x%x\n",
18908 shdr_status, shdr_add_status);
18909 if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
18910 spin_lock_irq(&phba->hbalock);
18911 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
18912 spin_unlock_irq(&phba->hbalock);
18914 * CVL event triggered FCF rediscover request failed,
18915 * last resort to re-try current registered FCF entry.
18917 lpfc_retry_pport_discovery(phba);
18919 spin_lock_irq(&phba->hbalock);
18920 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
18921 spin_unlock_irq(&phba->hbalock);
18923 * DEAD FCF event triggered FCF rediscover request
18924 * failed, last resort to fail over as a link down
18925 * to FCF registration.
18927 lpfc_sli4_fcf_dead_failthrough(phba);
18930 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
18931 "2775 Start FCF rediscover quiescent timer\n");
18933 * Start FCF rediscovery wait timer for pending FCF
18934 * before rescan FCF record table.
18936 lpfc_fcf_redisc_wait_start_timer(phba);
18939 mempool_free(mbox, phba->mbox_mem_pool);
18943 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
18944 * @phba: pointer to lpfc hba data structure.
18946 * This routine is invoked to request for rediscovery of the entire FCF table
18950 lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
18952 LPFC_MBOXQ_t *mbox;
18953 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
18956 /* Cancel retry delay timers to all vports before FCF rediscover */
18957 lpfc_cancel_all_vport_retry_delay_timer(phba);
18959 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18961 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18962 "2745 Failed to allocate mbox for "
18963 "requesting FCF rediscover.\n");
18967 length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
18968 sizeof(struct lpfc_sli4_cfg_mhdr));
18969 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
18970 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
18971 length, LPFC_SLI4_MBX_EMBED);
18973 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
18974 /* Set count to 0 for invalidating the entire FCF database */
18975 bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
18977 /* Issue the mailbox command asynchronously */
18978 mbox->vport = phba->pport;
18979 mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
18980 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
18982 if (rc == MBX_NOT_FINISHED) {
18983 mempool_free(mbox, phba->mbox_mem_pool);
18990 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
18991 * @phba: pointer to lpfc hba data structure.
18993 * This function is the failover routine as a last resort to the FCF DEAD
18994 * event when driver failed to perform fast FCF failover.
18997 lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
18999 uint32_t link_state;
19002 * Last resort as FCF DEAD event failover will treat this as
19003 * a link down, but save the link state because we don't want
19004 * it to be changed to Link Down unless it is already down.
19006 link_state = phba->link_state;
19007 lpfc_linkdown(phba);
19008 phba->link_state = link_state;
19010 /* Unregister FCF if no devices connected to it */
19011 lpfc_unregister_unused_fcf(phba);
19015 * lpfc_sli_get_config_region23 - Get sli3 port region 23 data.
19016 * @phba: pointer to lpfc hba data structure.
19017 * @rgn23_data: pointer to configure region 23 data.
19019 * This function gets SLI3 port configure region 23 data through memory dump
19020 * mailbox command. When it successfully retrieves data, the size of the data
19021 * will be returned, otherwise, 0 will be returned.
19024 lpfc_sli_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
19026 LPFC_MBOXQ_t *pmb = NULL;
19028 uint32_t offset = 0;
19034 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
19036 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
19037 "2600 failed to allocate mailbox memory\n");
19043 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
19044 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
19046 if (rc != MBX_SUCCESS) {
19047 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
19048 "2601 failed to read config "
19049 "region 23, rc 0x%x Status 0x%x\n",
19050 rc, mb->mbxStatus);
19051 mb->un.varDmp.word_cnt = 0;
19054 * dump mem may return a zero when finished or we got a
19055 * mailbox error, either way we are done.
19057 if (mb->un.varDmp.word_cnt == 0)
19059 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
19060 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
19062 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
19063 rgn23_data + offset,
19064 mb->un.varDmp.word_cnt);
19065 offset += mb->un.varDmp.word_cnt;
19066 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
19068 mempool_free(pmb, phba->mbox_mem_pool);
19073 * lpfc_sli4_get_config_region23 - Get sli4 port region 23 data.
19074 * @phba: pointer to lpfc hba data structure.
19075 * @rgn23_data: pointer to configure region 23 data.
19077 * This function gets SLI4 port configure region 23 data through memory dump
19078 * mailbox command. When it successfully retrieves data, the size of the data
19079 * will be returned, otherwise, 0 will be returned.
19082 lpfc_sli4_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
19084 LPFC_MBOXQ_t *mboxq = NULL;
19085 struct lpfc_dmabuf *mp = NULL;
19086 struct lpfc_mqe *mqe;
19087 uint32_t data_length = 0;
19093 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
19095 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
19096 "3105 failed to allocate mailbox memory\n");
19100 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq))
19102 mqe = &mboxq->u.mqe;
19103 mp = (struct lpfc_dmabuf *)mboxq->ctx_buf;
19104 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
19107 data_length = mqe->un.mb_words[5];
19108 if (data_length == 0)
19110 if (data_length > DMP_RGN23_SIZE) {
19114 lpfc_sli_pcimem_bcopy((char *)mp->virt, rgn23_data, data_length);
19116 mempool_free(mboxq, phba->mbox_mem_pool);
19118 lpfc_mbuf_free(phba, mp->virt, mp->phys);
19121 return data_length;
19125 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
19126 * @phba: pointer to lpfc hba data structure.
19128 * This function read region 23 and parse TLV for port status to
19129 * decide if the user disaled the port. If the TLV indicates the
19130 * port is disabled, the hba_flag is set accordingly.
19133 lpfc_sli_read_link_ste(struct lpfc_hba *phba)
19135 uint8_t *rgn23_data = NULL;
19136 uint32_t if_type, data_size, sub_tlv_len, tlv_offset;
19137 uint32_t offset = 0;
19139 /* Get adapter Region 23 data */
19140 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
19144 if (phba->sli_rev < LPFC_SLI_REV4)
19145 data_size = lpfc_sli_get_config_region23(phba, rgn23_data);
19147 if_type = bf_get(lpfc_sli_intf_if_type,
19148 &phba->sli4_hba.sli_intf);
19149 if (if_type == LPFC_SLI_INTF_IF_TYPE_0)
19151 data_size = lpfc_sli4_get_config_region23(phba, rgn23_data);
19157 /* Check the region signature first */
19158 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
19159 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
19160 "2619 Config region 23 has bad signature\n");
19165 /* Check the data structure version */
19166 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
19167 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
19168 "2620 Config region 23 has bad version\n");
19173 /* Parse TLV entries in the region */
19174 while (offset < data_size) {
19175 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
19178 * If the TLV is not driver specific TLV or driver id is
19179 * not linux driver id, skip the record.
19181 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
19182 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
19183 (rgn23_data[offset + 3] != 0)) {
19184 offset += rgn23_data[offset + 1] * 4 + 4;
19188 /* Driver found a driver specific TLV in the config region */
19189 sub_tlv_len = rgn23_data[offset + 1] * 4;
19194 * Search for configured port state sub-TLV.
19196 while ((offset < data_size) &&
19197 (tlv_offset < sub_tlv_len)) {
19198 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
19203 if (rgn23_data[offset] != PORT_STE_TYPE) {
19204 offset += rgn23_data[offset + 1] * 4 + 4;
19205 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
19209 /* This HBA contains PORT_STE configured */
19210 if (!rgn23_data[offset + 2])
19211 phba->hba_flag |= LINK_DISABLED;
19223 * lpfc_wr_object - write an object to the firmware
19224 * @phba: HBA structure that indicates port to create a queue on.
19225 * @dmabuf_list: list of dmabufs to write to the port.
19226 * @size: the total byte value of the objects to write to the port.
19227 * @offset: the current offset to be used to start the transfer.
19229 * This routine will create a wr_object mailbox command to send to the port.
19230 * the mailbox command will be constructed using the dma buffers described in
19231 * @dmabuf_list to create a list of BDEs. This routine will fill in as many
19232 * BDEs that the imbedded mailbox can support. The @offset variable will be
19233 * used to indicate the starting offset of the transfer and will also return
19234 * the offset after the write object mailbox has completed. @size is used to
19235 * determine the end of the object and whether the eof bit should be set.
19237 * Return 0 is successful and offset will contain the the new offset to use
19238 * for the next write.
19239 * Return negative value for error cases.
19242 lpfc_wr_object(struct lpfc_hba *phba, struct list_head *dmabuf_list,
19243 uint32_t size, uint32_t *offset)
19245 struct lpfc_mbx_wr_object *wr_object;
19246 LPFC_MBOXQ_t *mbox;
19248 uint32_t shdr_status, shdr_add_status, shdr_change_status;
19250 struct lpfc_dmabuf *dmabuf;
19251 uint32_t written = 0;
19252 bool check_change_status = false;
19254 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
19258 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
19259 LPFC_MBOX_OPCODE_WRITE_OBJECT,
19260 sizeof(struct lpfc_mbx_wr_object) -
19261 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
19263 wr_object = (struct lpfc_mbx_wr_object *)&mbox->u.mqe.un.wr_object;
19264 wr_object->u.request.write_offset = *offset;
19265 sprintf((uint8_t *)wr_object->u.request.object_name, "/");
19266 wr_object->u.request.object_name[0] =
19267 cpu_to_le32(wr_object->u.request.object_name[0]);
19268 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 0);
19269 list_for_each_entry(dmabuf, dmabuf_list, list) {
19270 if (i >= LPFC_MBX_WR_CONFIG_MAX_BDE || written >= size)
19272 wr_object->u.request.bde[i].addrLow = putPaddrLow(dmabuf->phys);
19273 wr_object->u.request.bde[i].addrHigh =
19274 putPaddrHigh(dmabuf->phys);
19275 if (written + SLI4_PAGE_SIZE >= size) {
19276 wr_object->u.request.bde[i].tus.f.bdeSize =
19278 written += (size - written);
19279 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 1);
19280 bf_set(lpfc_wr_object_eas, &wr_object->u.request, 1);
19281 check_change_status = true;
19283 wr_object->u.request.bde[i].tus.f.bdeSize =
19285 written += SLI4_PAGE_SIZE;
19289 wr_object->u.request.bde_count = i;
19290 bf_set(lpfc_wr_object_write_length, &wr_object->u.request, written);
19291 if (!phba->sli4_hba.intr_enable)
19292 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
19294 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
19295 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
19297 /* The IOCTL status is embedded in the mailbox subheader. */
19298 shdr_status = bf_get(lpfc_mbox_hdr_status,
19299 &wr_object->header.cfg_shdr.response);
19300 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
19301 &wr_object->header.cfg_shdr.response);
19302 if (check_change_status) {
19303 shdr_change_status = bf_get(lpfc_wr_object_change_status,
19304 &wr_object->u.response);
19305 switch (shdr_change_status) {
19306 case (LPFC_CHANGE_STATUS_PHYS_DEV_RESET):
19307 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
19308 "3198 Firmware write complete: System "
19309 "reboot required to instantiate\n");
19311 case (LPFC_CHANGE_STATUS_FW_RESET):
19312 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
19313 "3199 Firmware write complete: Firmware"
19314 " reset required to instantiate\n");
19316 case (LPFC_CHANGE_STATUS_PORT_MIGRATION):
19317 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
19318 "3200 Firmware write complete: Port "
19319 "Migration or PCI Reset required to "
19322 case (LPFC_CHANGE_STATUS_PCI_RESET):
19323 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
19324 "3201 Firmware write complete: PCI "
19325 "Reset required to instantiate\n");
19331 if (rc != MBX_TIMEOUT)
19332 mempool_free(mbox, phba->mbox_mem_pool);
19333 if (shdr_status || shdr_add_status || rc) {
19334 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
19335 "3025 Write Object mailbox failed with "
19336 "status x%x add_status x%x, mbx status x%x\n",
19337 shdr_status, shdr_add_status, rc);
19339 *offset = shdr_add_status;
19341 *offset += wr_object->u.response.actual_write_length;
19346 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
19347 * @vport: pointer to vport data structure.
19349 * This function iterate through the mailboxq and clean up all REG_LOGIN
19350 * and REG_VPI mailbox commands associated with the vport. This function
19351 * is called when driver want to restart discovery of the vport due to
19352 * a Clear Virtual Link event.
19355 lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
19357 struct lpfc_hba *phba = vport->phba;
19358 LPFC_MBOXQ_t *mb, *nextmb;
19359 struct lpfc_dmabuf *mp;
19360 struct lpfc_nodelist *ndlp;
19361 struct lpfc_nodelist *act_mbx_ndlp = NULL;
19362 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
19363 LIST_HEAD(mbox_cmd_list);
19364 uint8_t restart_loop;
19366 /* Clean up internally queued mailbox commands with the vport */
19367 spin_lock_irq(&phba->hbalock);
19368 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
19369 if (mb->vport != vport)
19372 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
19373 (mb->u.mb.mbxCommand != MBX_REG_VPI))
19376 list_del(&mb->list);
19377 list_add_tail(&mb->list, &mbox_cmd_list);
19379 /* Clean up active mailbox command with the vport */
19380 mb = phba->sli.mbox_active;
19381 if (mb && (mb->vport == vport)) {
19382 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
19383 (mb->u.mb.mbxCommand == MBX_REG_VPI))
19384 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
19385 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
19386 act_mbx_ndlp = (struct lpfc_nodelist *)mb->ctx_ndlp;
19387 /* Put reference count for delayed processing */
19388 act_mbx_ndlp = lpfc_nlp_get(act_mbx_ndlp);
19389 /* Unregister the RPI when mailbox complete */
19390 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
19393 /* Cleanup any mailbox completions which are not yet processed */
19396 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
19398 * If this mailox is already processed or it is
19399 * for another vport ignore it.
19401 if ((mb->vport != vport) ||
19402 (mb->mbox_flag & LPFC_MBX_IMED_UNREG))
19405 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
19406 (mb->u.mb.mbxCommand != MBX_REG_VPI))
19409 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
19410 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
19411 ndlp = (struct lpfc_nodelist *)mb->ctx_ndlp;
19412 /* Unregister the RPI when mailbox complete */
19413 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
19415 spin_unlock_irq(&phba->hbalock);
19416 spin_lock(shost->host_lock);
19417 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
19418 spin_unlock(shost->host_lock);
19419 spin_lock_irq(&phba->hbalock);
19423 } while (restart_loop);
19425 spin_unlock_irq(&phba->hbalock);
19427 /* Release the cleaned-up mailbox commands */
19428 while (!list_empty(&mbox_cmd_list)) {
19429 list_remove_head(&mbox_cmd_list, mb, LPFC_MBOXQ_t, list);
19430 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
19431 mp = (struct lpfc_dmabuf *)(mb->ctx_buf);
19433 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
19436 mb->ctx_buf = NULL;
19437 ndlp = (struct lpfc_nodelist *)mb->ctx_ndlp;
19438 mb->ctx_ndlp = NULL;
19440 spin_lock(shost->host_lock);
19441 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
19442 spin_unlock(shost->host_lock);
19443 lpfc_nlp_put(ndlp);
19446 mempool_free(mb, phba->mbox_mem_pool);
19449 /* Release the ndlp with the cleaned-up active mailbox command */
19450 if (act_mbx_ndlp) {
19451 spin_lock(shost->host_lock);
19452 act_mbx_ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
19453 spin_unlock(shost->host_lock);
19454 lpfc_nlp_put(act_mbx_ndlp);
19459 * lpfc_drain_txq - Drain the txq
19460 * @phba: Pointer to HBA context object.
19462 * This function attempt to submit IOCBs on the txq
19463 * to the adapter. For SLI4 adapters, the txq contains
19464 * ELS IOCBs that have been deferred because the there
19465 * are no SGLs. This congestion can occur with large
19466 * vport counts during node discovery.
19470 lpfc_drain_txq(struct lpfc_hba *phba)
19472 LIST_HEAD(completions);
19473 struct lpfc_sli_ring *pring;
19474 struct lpfc_iocbq *piocbq = NULL;
19475 unsigned long iflags = 0;
19476 char *fail_msg = NULL;
19477 struct lpfc_sglq *sglq;
19478 union lpfc_wqe128 wqe;
19479 uint32_t txq_cnt = 0;
19480 struct lpfc_queue *wq;
19482 if (phba->link_flag & LS_MDS_LOOPBACK) {
19483 /* MDS WQE are posted only to first WQ*/
19484 wq = phba->sli4_hba.hdwq[0].io_wq;
19489 wq = phba->sli4_hba.els_wq;
19492 pring = lpfc_phba_elsring(phba);
19495 if (unlikely(!pring) || list_empty(&pring->txq))
19498 spin_lock_irqsave(&pring->ring_lock, iflags);
19499 list_for_each_entry(piocbq, &pring->txq, list) {
19503 if (txq_cnt > pring->txq_max)
19504 pring->txq_max = txq_cnt;
19506 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19508 while (!list_empty(&pring->txq)) {
19509 spin_lock_irqsave(&pring->ring_lock, iflags);
19511 piocbq = lpfc_sli_ringtx_get(phba, pring);
19513 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19514 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
19515 "2823 txq empty and txq_cnt is %d\n ",
19519 sglq = __lpfc_sli_get_els_sglq(phba, piocbq);
19521 __lpfc_sli_ringtx_put(phba, pring, piocbq);
19522 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19527 /* The xri and iocb resources secured,
19528 * attempt to issue request
19530 piocbq->sli4_lxritag = sglq->sli4_lxritag;
19531 piocbq->sli4_xritag = sglq->sli4_xritag;
19532 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocbq, sglq))
19533 fail_msg = "to convert bpl to sgl";
19534 else if (lpfc_sli4_iocb2wqe(phba, piocbq, &wqe))
19535 fail_msg = "to convert iocb to wqe";
19536 else if (lpfc_sli4_wq_put(wq, &wqe))
19537 fail_msg = " - Wq is full";
19539 lpfc_sli_ringtxcmpl_put(phba, pring, piocbq);
19542 /* Failed means we can't issue and need to cancel */
19543 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
19544 "2822 IOCB failed %s iotag 0x%x "
19547 piocbq->iotag, piocbq->sli4_xritag);
19548 list_add_tail(&piocbq->list, &completions);
19550 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19553 /* Cancel all the IOCBs that cannot be issued */
19554 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
19555 IOERR_SLI_ABORTED);
19561 * lpfc_wqe_bpl2sgl - Convert the bpl/bde to a sgl.
19562 * @phba: Pointer to HBA context object.
19563 * @pwqe: Pointer to command WQE.
19564 * @sglq: Pointer to the scatter gather queue object.
19566 * This routine converts the bpl or bde that is in the WQE
19567 * to a sgl list for the sli4 hardware. The physical address
19568 * of the bpl/bde is converted back to a virtual address.
19569 * If the WQE contains a BPL then the list of BDE's is
19570 * converted to sli4_sge's. If the WQE contains a single
19571 * BDE then it is converted to a single sli_sge.
19572 * The WQE is still in cpu endianness so the contents of
19573 * the bpl can be used without byte swapping.
19575 * Returns valid XRI = Success, NO_XRI = Failure.
19578 lpfc_wqe_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeq,
19579 struct lpfc_sglq *sglq)
19581 uint16_t xritag = NO_XRI;
19582 struct ulp_bde64 *bpl = NULL;
19583 struct ulp_bde64 bde;
19584 struct sli4_sge *sgl = NULL;
19585 struct lpfc_dmabuf *dmabuf;
19586 union lpfc_wqe128 *wqe;
19589 uint32_t offset = 0; /* accumulated offset in the sg request list */
19590 int inbound = 0; /* number of sg reply entries inbound from firmware */
19593 if (!pwqeq || !sglq)
19596 sgl = (struct sli4_sge *)sglq->sgl;
19598 pwqeq->iocb.ulpIoTag = pwqeq->iotag;
19600 cmd = bf_get(wqe_cmnd, &wqe->generic.wqe_com);
19601 if (cmd == CMD_XMIT_BLS_RSP64_WQE)
19602 return sglq->sli4_xritag;
19603 numBdes = pwqeq->rsvd2;
19605 /* The addrHigh and addrLow fields within the WQE
19606 * have not been byteswapped yet so there is no
19607 * need to swap them back.
19609 if (pwqeq->context3)
19610 dmabuf = (struct lpfc_dmabuf *)pwqeq->context3;
19614 bpl = (struct ulp_bde64 *)dmabuf->virt;
19618 for (i = 0; i < numBdes; i++) {
19619 /* Should already be byte swapped. */
19620 sgl->addr_hi = bpl->addrHigh;
19621 sgl->addr_lo = bpl->addrLow;
19623 sgl->word2 = le32_to_cpu(sgl->word2);
19624 if ((i+1) == numBdes)
19625 bf_set(lpfc_sli4_sge_last, sgl, 1);
19627 bf_set(lpfc_sli4_sge_last, sgl, 0);
19628 /* swap the size field back to the cpu so we
19629 * can assign it to the sgl.
19631 bde.tus.w = le32_to_cpu(bpl->tus.w);
19632 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
19633 /* The offsets in the sgl need to be accumulated
19634 * separately for the request and reply lists.
19635 * The request is always first, the reply follows.
19638 case CMD_GEN_REQUEST64_WQE:
19639 /* add up the reply sg entries */
19640 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
19642 /* first inbound? reset the offset */
19645 bf_set(lpfc_sli4_sge_offset, sgl, offset);
19646 bf_set(lpfc_sli4_sge_type, sgl,
19647 LPFC_SGE_TYPE_DATA);
19648 offset += bde.tus.f.bdeSize;
19650 case CMD_FCP_TRSP64_WQE:
19651 bf_set(lpfc_sli4_sge_offset, sgl, 0);
19652 bf_set(lpfc_sli4_sge_type, sgl,
19653 LPFC_SGE_TYPE_DATA);
19655 case CMD_FCP_TSEND64_WQE:
19656 case CMD_FCP_TRECEIVE64_WQE:
19657 bf_set(lpfc_sli4_sge_type, sgl,
19658 bpl->tus.f.bdeFlags);
19662 offset += bde.tus.f.bdeSize;
19663 bf_set(lpfc_sli4_sge_offset, sgl, offset);
19666 sgl->word2 = cpu_to_le32(sgl->word2);
19670 } else if (wqe->gen_req.bde.tus.f.bdeFlags == BUFF_TYPE_BDE_64) {
19671 /* The addrHigh and addrLow fields of the BDE have not
19672 * been byteswapped yet so they need to be swapped
19673 * before putting them in the sgl.
19675 sgl->addr_hi = cpu_to_le32(wqe->gen_req.bde.addrHigh);
19676 sgl->addr_lo = cpu_to_le32(wqe->gen_req.bde.addrLow);
19677 sgl->word2 = le32_to_cpu(sgl->word2);
19678 bf_set(lpfc_sli4_sge_last, sgl, 1);
19679 sgl->word2 = cpu_to_le32(sgl->word2);
19680 sgl->sge_len = cpu_to_le32(wqe->gen_req.bde.tus.f.bdeSize);
19682 return sglq->sli4_xritag;
19686 * lpfc_sli4_issue_wqe - Issue an SLI4 Work Queue Entry (WQE)
19687 * @phba: Pointer to HBA context object.
19688 * @ring_number: Base sli ring number
19689 * @pwqe: Pointer to command WQE.
19692 lpfc_sli4_issue_wqe(struct lpfc_hba *phba, struct lpfc_sli4_hdw_queue *qp,
19693 struct lpfc_iocbq *pwqe)
19695 union lpfc_wqe128 *wqe = &pwqe->wqe;
19696 struct lpfc_nvmet_rcv_ctx *ctxp;
19697 struct lpfc_queue *wq;
19698 struct lpfc_sglq *sglq;
19699 struct lpfc_sli_ring *pring;
19700 unsigned long iflags;
19703 /* NVME_LS and NVME_LS ABTS requests. */
19704 if (pwqe->iocb_flag & LPFC_IO_NVME_LS) {
19705 pring = phba->sli4_hba.nvmels_wq->pring;
19706 lpfc_qp_spin_lock_irqsave(&pring->ring_lock, iflags,
19708 sglq = __lpfc_sli_get_els_sglq(phba, pwqe);
19710 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19713 pwqe->sli4_lxritag = sglq->sli4_lxritag;
19714 pwqe->sli4_xritag = sglq->sli4_xritag;
19715 if (lpfc_wqe_bpl2sgl(phba, pwqe, sglq) == NO_XRI) {
19716 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19719 bf_set(wqe_xri_tag, &pwqe->wqe.xmit_bls_rsp.wqe_com,
19720 pwqe->sli4_xritag);
19721 ret = lpfc_sli4_wq_put(phba->sli4_hba.nvmels_wq, wqe);
19723 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19727 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
19728 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19732 /* NVME_FCREQ and NVME_ABTS requests */
19733 if (pwqe->iocb_flag & LPFC_IO_NVME) {
19734 /* Get the IO distribution (hba_wqidx) for WQ assignment. */
19738 bf_set(wqe_cqid, &wqe->generic.wqe_com, qp->io_cq_map);
19740 lpfc_qp_spin_lock_irqsave(&pring->ring_lock, iflags,
19742 ret = lpfc_sli4_wq_put(wq, wqe);
19744 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19747 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
19748 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19752 /* NVMET requests */
19753 if (pwqe->iocb_flag & LPFC_IO_NVMET) {
19754 /* Get the IO distribution (hba_wqidx) for WQ assignment. */
19758 ctxp = pwqe->context2;
19759 sglq = ctxp->ctxbuf->sglq;
19760 if (pwqe->sli4_xritag == NO_XRI) {
19761 pwqe->sli4_lxritag = sglq->sli4_lxritag;
19762 pwqe->sli4_xritag = sglq->sli4_xritag;
19764 bf_set(wqe_xri_tag, &pwqe->wqe.xmit_bls_rsp.wqe_com,
19765 pwqe->sli4_xritag);
19766 bf_set(wqe_cqid, &wqe->generic.wqe_com, qp->io_cq_map);
19768 lpfc_qp_spin_lock_irqsave(&pring->ring_lock, iflags,
19770 ret = lpfc_sli4_wq_put(wq, wqe);
19772 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19775 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
19776 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19782 #ifdef LPFC_MXP_STAT
19784 * lpfc_snapshot_mxp - Snapshot pbl, pvt and busy count
19785 * @phba: pointer to lpfc hba data structure.
19786 * @hwqid: belong to which HWQ.
19788 * The purpose of this routine is to take a snapshot of pbl, pvt and busy count
19789 * 15 seconds after a test case is running.
19791 * The user should call lpfc_debugfs_multixripools_write before running a test
19792 * case to clear stat_snapshot_taken. Then the user starts a test case. During
19793 * test case is running, stat_snapshot_taken is incremented by 1 every time when
19794 * this routine is called from heartbeat timer. When stat_snapshot_taken is
19795 * equal to LPFC_MXP_SNAPSHOT_TAKEN, a snapshot is taken.
19797 void lpfc_snapshot_mxp(struct lpfc_hba *phba, u32 hwqid)
19799 struct lpfc_sli4_hdw_queue *qp;
19800 struct lpfc_multixri_pool *multixri_pool;
19801 struct lpfc_pvt_pool *pvt_pool;
19802 struct lpfc_pbl_pool *pbl_pool;
19805 qp = &phba->sli4_hba.hdwq[hwqid];
19806 multixri_pool = qp->p_multixri_pool;
19807 if (!multixri_pool)
19810 if (multixri_pool->stat_snapshot_taken == LPFC_MXP_SNAPSHOT_TAKEN) {
19811 pvt_pool = &qp->p_multixri_pool->pvt_pool;
19812 pbl_pool = &qp->p_multixri_pool->pbl_pool;
19813 txcmplq_cnt = qp->io_wq->pring->txcmplq_cnt;
19815 multixri_pool->stat_pbl_count = pbl_pool->count;
19816 multixri_pool->stat_pvt_count = pvt_pool->count;
19817 multixri_pool->stat_busy_count = txcmplq_cnt;
19820 multixri_pool->stat_snapshot_taken++;
19825 * lpfc_adjust_pvt_pool_count - Adjust private pool count
19826 * @phba: pointer to lpfc hba data structure.
19827 * @hwqid: belong to which HWQ.
19829 * This routine moves some XRIs from private to public pool when private pool
19832 void lpfc_adjust_pvt_pool_count(struct lpfc_hba *phba, u32 hwqid)
19834 struct lpfc_multixri_pool *multixri_pool;
19836 u32 prev_io_req_count;
19838 multixri_pool = phba->sli4_hba.hdwq[hwqid].p_multixri_pool;
19839 if (!multixri_pool)
19841 io_req_count = multixri_pool->io_req_count;
19842 prev_io_req_count = multixri_pool->prev_io_req_count;
19844 if (prev_io_req_count != io_req_count) {
19845 /* Private pool is busy */
19846 multixri_pool->prev_io_req_count = io_req_count;
19848 /* Private pool is not busy.
19849 * Move XRIs from private to public pool.
19851 lpfc_move_xri_pvt_to_pbl(phba, hwqid);
19856 * lpfc_adjust_high_watermark - Adjust high watermark
19857 * @phba: pointer to lpfc hba data structure.
19858 * @hwqid: belong to which HWQ.
19860 * This routine sets high watermark as number of outstanding XRIs,
19861 * but make sure the new value is between xri_limit/2 and xri_limit.
19863 void lpfc_adjust_high_watermark(struct lpfc_hba *phba, u32 hwqid)
19871 struct lpfc_multixri_pool *multixri_pool;
19872 struct lpfc_sli4_hdw_queue *qp;
19874 qp = &phba->sli4_hba.hdwq[hwqid];
19875 multixri_pool = qp->p_multixri_pool;
19876 if (!multixri_pool)
19878 xri_limit = multixri_pool->xri_limit;
19880 watermark_max = xri_limit;
19881 watermark_min = xri_limit / 2;
19883 txcmplq_cnt = qp->io_wq->pring->txcmplq_cnt;
19884 abts_io_bufs = qp->abts_scsi_io_bufs;
19885 abts_io_bufs += qp->abts_nvme_io_bufs;
19887 new_watermark = txcmplq_cnt + abts_io_bufs;
19888 new_watermark = min(watermark_max, new_watermark);
19889 new_watermark = max(watermark_min, new_watermark);
19890 multixri_pool->pvt_pool.high_watermark = new_watermark;
19892 #ifdef LPFC_MXP_STAT
19893 multixri_pool->stat_max_hwm = max(multixri_pool->stat_max_hwm,
19899 * lpfc_move_xri_pvt_to_pbl - Move some XRIs from private to public pool
19900 * @phba: pointer to lpfc hba data structure.
19901 * @hwqid: belong to which HWQ.
19903 * This routine is called from hearbeat timer when pvt_pool is idle.
19904 * All free XRIs are moved from private to public pool on hwqid with 2 steps.
19905 * The first step moves (all - low_watermark) amount of XRIs.
19906 * The second step moves the rest of XRIs.
19908 void lpfc_move_xri_pvt_to_pbl(struct lpfc_hba *phba, u32 hwqid)
19910 struct lpfc_pbl_pool *pbl_pool;
19911 struct lpfc_pvt_pool *pvt_pool;
19912 struct lpfc_sli4_hdw_queue *qp;
19913 struct lpfc_io_buf *lpfc_ncmd;
19914 struct lpfc_io_buf *lpfc_ncmd_next;
19915 unsigned long iflag;
19916 struct list_head tmp_list;
19919 qp = &phba->sli4_hba.hdwq[hwqid];
19920 pbl_pool = &qp->p_multixri_pool->pbl_pool;
19921 pvt_pool = &qp->p_multixri_pool->pvt_pool;
19924 lpfc_qp_spin_lock_irqsave(&pbl_pool->lock, iflag, qp, mv_to_pub_pool);
19925 lpfc_qp_spin_lock(&pvt_pool->lock, qp, mv_from_pvt_pool);
19927 if (pvt_pool->count > pvt_pool->low_watermark) {
19928 /* Step 1: move (all - low_watermark) from pvt_pool
19932 /* Move low watermark of bufs from pvt_pool to tmp_list */
19933 INIT_LIST_HEAD(&tmp_list);
19934 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
19935 &pvt_pool->list, list) {
19936 list_move_tail(&lpfc_ncmd->list, &tmp_list);
19938 if (tmp_count >= pvt_pool->low_watermark)
19942 /* Move all bufs from pvt_pool to pbl_pool */
19943 list_splice_init(&pvt_pool->list, &pbl_pool->list);
19945 /* Move all bufs from tmp_list to pvt_pool */
19946 list_splice(&tmp_list, &pvt_pool->list);
19948 pbl_pool->count += (pvt_pool->count - tmp_count);
19949 pvt_pool->count = tmp_count;
19951 /* Step 2: move the rest from pvt_pool to pbl_pool */
19952 list_splice_init(&pvt_pool->list, &pbl_pool->list);
19953 pbl_pool->count += pvt_pool->count;
19954 pvt_pool->count = 0;
19957 spin_unlock(&pvt_pool->lock);
19958 spin_unlock_irqrestore(&pbl_pool->lock, iflag);
19962 * _lpfc_move_xri_pbl_to_pvt - Move some XRIs from public to private pool
19963 * @phba: pointer to lpfc hba data structure
19964 * @pbl_pool: specified public free XRI pool
19965 * @pvt_pool: specified private free XRI pool
19966 * @count: number of XRIs to move
19968 * This routine tries to move some free common bufs from the specified pbl_pool
19969 * to the specified pvt_pool. It might move less than count XRIs if there's not
19970 * enough in public pool.
19973 * true - if XRIs are successfully moved from the specified pbl_pool to the
19974 * specified pvt_pool
19975 * false - if the specified pbl_pool is empty or locked by someone else
19978 _lpfc_move_xri_pbl_to_pvt(struct lpfc_hba *phba, struct lpfc_sli4_hdw_queue *qp,
19979 struct lpfc_pbl_pool *pbl_pool,
19980 struct lpfc_pvt_pool *pvt_pool, u32 count)
19982 struct lpfc_io_buf *lpfc_ncmd;
19983 struct lpfc_io_buf *lpfc_ncmd_next;
19984 unsigned long iflag;
19987 ret = spin_trylock_irqsave(&pbl_pool->lock, iflag);
19989 if (pbl_pool->count) {
19990 /* Move a batch of XRIs from public to private pool */
19991 lpfc_qp_spin_lock(&pvt_pool->lock, qp, mv_to_pvt_pool);
19992 list_for_each_entry_safe(lpfc_ncmd,
19996 list_move_tail(&lpfc_ncmd->list,
20005 spin_unlock(&pvt_pool->lock);
20006 spin_unlock_irqrestore(&pbl_pool->lock, iflag);
20009 spin_unlock_irqrestore(&pbl_pool->lock, iflag);
20016 * lpfc_move_xri_pbl_to_pvt - Move some XRIs from public to private pool
20017 * @phba: pointer to lpfc hba data structure.
20018 * @hwqid: belong to which HWQ.
20019 * @count: number of XRIs to move
20021 * This routine tries to find some free common bufs in one of public pools with
20022 * Round Robin method. The search always starts from local hwqid, then the next
20023 * HWQ which was found last time (rrb_next_hwqid). Once a public pool is found,
20024 * a batch of free common bufs are moved to private pool on hwqid.
20025 * It might move less than count XRIs if there's not enough in public pool.
20027 void lpfc_move_xri_pbl_to_pvt(struct lpfc_hba *phba, u32 hwqid, u32 count)
20029 struct lpfc_multixri_pool *multixri_pool;
20030 struct lpfc_multixri_pool *next_multixri_pool;
20031 struct lpfc_pvt_pool *pvt_pool;
20032 struct lpfc_pbl_pool *pbl_pool;
20033 struct lpfc_sli4_hdw_queue *qp;
20038 qp = &phba->sli4_hba.hdwq[hwqid];
20039 multixri_pool = qp->p_multixri_pool;
20040 pvt_pool = &multixri_pool->pvt_pool;
20041 pbl_pool = &multixri_pool->pbl_pool;
20043 /* Check if local pbl_pool is available */
20044 ret = _lpfc_move_xri_pbl_to_pvt(phba, qp, pbl_pool, pvt_pool, count);
20046 #ifdef LPFC_MXP_STAT
20047 multixri_pool->local_pbl_hit_count++;
20052 hwq_count = phba->cfg_hdw_queue;
20054 /* Get the next hwqid which was found last time */
20055 next_hwqid = multixri_pool->rrb_next_hwqid;
20058 /* Go to next hwq */
20059 next_hwqid = (next_hwqid + 1) % hwq_count;
20061 next_multixri_pool =
20062 phba->sli4_hba.hdwq[next_hwqid].p_multixri_pool;
20063 pbl_pool = &next_multixri_pool->pbl_pool;
20065 /* Check if the public free xri pool is available */
20066 ret = _lpfc_move_xri_pbl_to_pvt(
20067 phba, qp, pbl_pool, pvt_pool, count);
20069 /* Exit while-loop if success or all hwqid are checked */
20070 } while (!ret && next_hwqid != multixri_pool->rrb_next_hwqid);
20072 /* Starting point for the next time */
20073 multixri_pool->rrb_next_hwqid = next_hwqid;
20076 /* stats: all public pools are empty*/
20077 multixri_pool->pbl_empty_count++;
20080 #ifdef LPFC_MXP_STAT
20082 if (next_hwqid == hwqid)
20083 multixri_pool->local_pbl_hit_count++;
20085 multixri_pool->other_pbl_hit_count++;
20091 * lpfc_keep_pvt_pool_above_lowwm - Keep pvt_pool above low watermark
20092 * @phba: pointer to lpfc hba data structure.
20093 * @qp: belong to which HWQ.
20095 * This routine get a batch of XRIs from pbl_pool if pvt_pool is less than
20098 void lpfc_keep_pvt_pool_above_lowwm(struct lpfc_hba *phba, u32 hwqid)
20100 struct lpfc_multixri_pool *multixri_pool;
20101 struct lpfc_pvt_pool *pvt_pool;
20103 multixri_pool = phba->sli4_hba.hdwq[hwqid].p_multixri_pool;
20104 pvt_pool = &multixri_pool->pvt_pool;
20106 if (pvt_pool->count < pvt_pool->low_watermark)
20107 lpfc_move_xri_pbl_to_pvt(phba, hwqid, XRI_BATCH);
20111 * lpfc_release_io_buf - Return one IO buf back to free pool
20112 * @phba: pointer to lpfc hba data structure.
20113 * @lpfc_ncmd: IO buf to be returned.
20114 * @qp: belong to which HWQ.
20116 * This routine returns one IO buf back to free pool. If this is an urgent IO,
20117 * the IO buf is returned to expedite pool. If cfg_xri_rebalancing==1,
20118 * the IO buf is returned to pbl_pool or pvt_pool based on watermark and
20119 * xri_limit. If cfg_xri_rebalancing==0, the IO buf is returned to
20120 * lpfc_io_buf_list_put.
20122 void lpfc_release_io_buf(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_ncmd,
20123 struct lpfc_sli4_hdw_queue *qp)
20125 unsigned long iflag;
20126 struct lpfc_pbl_pool *pbl_pool;
20127 struct lpfc_pvt_pool *pvt_pool;
20128 struct lpfc_epd_pool *epd_pool;
20134 /* MUST zero fields if buffer is reused by another protocol */
20135 lpfc_ncmd->nvmeCmd = NULL;
20136 lpfc_ncmd->cur_iocbq.wqe_cmpl = NULL;
20137 lpfc_ncmd->cur_iocbq.iocb_cmpl = NULL;
20139 if (phba->cfg_xpsgl && !phba->nvmet_support &&
20140 !list_empty(&lpfc_ncmd->dma_sgl_xtra_list))
20141 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
20143 if (!list_empty(&lpfc_ncmd->dma_cmd_rsp_list))
20144 lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
20146 if (phba->cfg_xri_rebalancing) {
20147 if (lpfc_ncmd->expedite) {
20148 /* Return to expedite pool */
20149 epd_pool = &phba->epd_pool;
20150 spin_lock_irqsave(&epd_pool->lock, iflag);
20151 list_add_tail(&lpfc_ncmd->list, &epd_pool->list);
20153 spin_unlock_irqrestore(&epd_pool->lock, iflag);
20157 /* Avoid invalid access if an IO sneaks in and is being rejected
20158 * just _after_ xri pools are destroyed in lpfc_offline.
20159 * Nothing much can be done at this point.
20161 if (!qp->p_multixri_pool)
20164 pbl_pool = &qp->p_multixri_pool->pbl_pool;
20165 pvt_pool = &qp->p_multixri_pool->pvt_pool;
20167 txcmplq_cnt = qp->io_wq->pring->txcmplq_cnt;
20168 abts_io_bufs = qp->abts_scsi_io_bufs;
20169 abts_io_bufs += qp->abts_nvme_io_bufs;
20171 xri_owned = pvt_pool->count + txcmplq_cnt + abts_io_bufs;
20172 xri_limit = qp->p_multixri_pool->xri_limit;
20174 #ifdef LPFC_MXP_STAT
20175 if (xri_owned <= xri_limit)
20176 qp->p_multixri_pool->below_limit_count++;
20178 qp->p_multixri_pool->above_limit_count++;
20181 /* XRI goes to either public or private free xri pool
20182 * based on watermark and xri_limit
20184 if ((pvt_pool->count < pvt_pool->low_watermark) ||
20185 (xri_owned < xri_limit &&
20186 pvt_pool->count < pvt_pool->high_watermark)) {
20187 lpfc_qp_spin_lock_irqsave(&pvt_pool->lock, iflag,
20188 qp, free_pvt_pool);
20189 list_add_tail(&lpfc_ncmd->list,
20192 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
20194 lpfc_qp_spin_lock_irqsave(&pbl_pool->lock, iflag,
20195 qp, free_pub_pool);
20196 list_add_tail(&lpfc_ncmd->list,
20199 spin_unlock_irqrestore(&pbl_pool->lock, iflag);
20202 lpfc_qp_spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag,
20204 list_add_tail(&lpfc_ncmd->list,
20205 &qp->lpfc_io_buf_list_put);
20207 spin_unlock_irqrestore(&qp->io_buf_list_put_lock,
20213 * lpfc_get_io_buf_from_private_pool - Get one free IO buf from private pool
20214 * @phba: pointer to lpfc hba data structure.
20215 * @pvt_pool: pointer to private pool data structure.
20216 * @ndlp: pointer to lpfc nodelist data structure.
20218 * This routine tries to get one free IO buf from private pool.
20221 * pointer to one free IO buf - if private pool is not empty
20222 * NULL - if private pool is empty
20224 static struct lpfc_io_buf *
20225 lpfc_get_io_buf_from_private_pool(struct lpfc_hba *phba,
20226 struct lpfc_sli4_hdw_queue *qp,
20227 struct lpfc_pvt_pool *pvt_pool,
20228 struct lpfc_nodelist *ndlp)
20230 struct lpfc_io_buf *lpfc_ncmd;
20231 struct lpfc_io_buf *lpfc_ncmd_next;
20232 unsigned long iflag;
20234 lpfc_qp_spin_lock_irqsave(&pvt_pool->lock, iflag, qp, alloc_pvt_pool);
20235 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
20236 &pvt_pool->list, list) {
20237 if (lpfc_test_rrq_active(
20238 phba, ndlp, lpfc_ncmd->cur_iocbq.sli4_lxritag))
20240 list_del(&lpfc_ncmd->list);
20242 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
20245 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
20251 * lpfc_get_io_buf_from_expedite_pool - Get one free IO buf from expedite pool
20252 * @phba: pointer to lpfc hba data structure.
20254 * This routine tries to get one free IO buf from expedite pool.
20257 * pointer to one free IO buf - if expedite pool is not empty
20258 * NULL - if expedite pool is empty
20260 static struct lpfc_io_buf *
20261 lpfc_get_io_buf_from_expedite_pool(struct lpfc_hba *phba)
20263 struct lpfc_io_buf *lpfc_ncmd;
20264 struct lpfc_io_buf *lpfc_ncmd_next;
20265 unsigned long iflag;
20266 struct lpfc_epd_pool *epd_pool;
20268 epd_pool = &phba->epd_pool;
20271 spin_lock_irqsave(&epd_pool->lock, iflag);
20272 if (epd_pool->count > 0) {
20273 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
20274 &epd_pool->list, list) {
20275 list_del(&lpfc_ncmd->list);
20280 spin_unlock_irqrestore(&epd_pool->lock, iflag);
20286 * lpfc_get_io_buf_from_multixri_pools - Get one free IO bufs
20287 * @phba: pointer to lpfc hba data structure.
20288 * @ndlp: pointer to lpfc nodelist data structure.
20289 * @hwqid: belong to which HWQ
20290 * @expedite: 1 means this request is urgent.
20292 * This routine will do the following actions and then return a pointer to
20295 * 1. If private free xri count is empty, move some XRIs from public to
20297 * 2. Get one XRI from private free xri pool.
20298 * 3. If we fail to get one from pvt_pool and this is an expedite request,
20299 * get one free xri from expedite pool.
20301 * Note: ndlp is only used on SCSI side for RRQ testing.
20302 * The caller should pass NULL for ndlp on NVME side.
20305 * pointer to one free IO buf - if private pool is not empty
20306 * NULL - if private pool is empty
20308 static struct lpfc_io_buf *
20309 lpfc_get_io_buf_from_multixri_pools(struct lpfc_hba *phba,
20310 struct lpfc_nodelist *ndlp,
20311 int hwqid, int expedite)
20313 struct lpfc_sli4_hdw_queue *qp;
20314 struct lpfc_multixri_pool *multixri_pool;
20315 struct lpfc_pvt_pool *pvt_pool;
20316 struct lpfc_io_buf *lpfc_ncmd;
20318 qp = &phba->sli4_hba.hdwq[hwqid];
20320 multixri_pool = qp->p_multixri_pool;
20321 pvt_pool = &multixri_pool->pvt_pool;
20322 multixri_pool->io_req_count++;
20324 /* If pvt_pool is empty, move some XRIs from public to private pool */
20325 if (pvt_pool->count == 0)
20326 lpfc_move_xri_pbl_to_pvt(phba, hwqid, XRI_BATCH);
20328 /* Get one XRI from private free xri pool */
20329 lpfc_ncmd = lpfc_get_io_buf_from_private_pool(phba, qp, pvt_pool, ndlp);
20332 lpfc_ncmd->hdwq = qp;
20333 lpfc_ncmd->hdwq_no = hwqid;
20334 } else if (expedite) {
20335 /* If we fail to get one from pvt_pool and this is an expedite
20336 * request, get one free xri from expedite pool.
20338 lpfc_ncmd = lpfc_get_io_buf_from_expedite_pool(phba);
20344 static inline struct lpfc_io_buf *
20345 lpfc_io_buf(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp, int idx)
20347 struct lpfc_sli4_hdw_queue *qp;
20348 struct lpfc_io_buf *lpfc_cmd, *lpfc_cmd_next;
20350 qp = &phba->sli4_hba.hdwq[idx];
20351 list_for_each_entry_safe(lpfc_cmd, lpfc_cmd_next,
20352 &qp->lpfc_io_buf_list_get, list) {
20353 if (lpfc_test_rrq_active(phba, ndlp,
20354 lpfc_cmd->cur_iocbq.sli4_lxritag))
20357 if (lpfc_cmd->flags & LPFC_SBUF_NOT_POSTED)
20360 list_del_init(&lpfc_cmd->list);
20362 lpfc_cmd->hdwq = qp;
20363 lpfc_cmd->hdwq_no = idx;
20370 * lpfc_get_io_buf - Get one IO buffer from free pool
20371 * @phba: The HBA for which this call is being executed.
20372 * @ndlp: pointer to lpfc nodelist data structure.
20373 * @hwqid: belong to which HWQ
20374 * @expedite: 1 means this request is urgent.
20376 * This routine gets one IO buffer from free pool. If cfg_xri_rebalancing==1,
20377 * removes a IO buffer from multiXRI pools. If cfg_xri_rebalancing==0, removes
20378 * a IO buffer from head of @hdwq io_buf_list and returns to caller.
20380 * Note: ndlp is only used on SCSI side for RRQ testing.
20381 * The caller should pass NULL for ndlp on NVME side.
20385 * Pointer to lpfc_io_buf - Success
20387 struct lpfc_io_buf *lpfc_get_io_buf(struct lpfc_hba *phba,
20388 struct lpfc_nodelist *ndlp,
20389 u32 hwqid, int expedite)
20391 struct lpfc_sli4_hdw_queue *qp;
20392 unsigned long iflag;
20393 struct lpfc_io_buf *lpfc_cmd;
20395 qp = &phba->sli4_hba.hdwq[hwqid];
20398 if (phba->cfg_xri_rebalancing)
20399 lpfc_cmd = lpfc_get_io_buf_from_multixri_pools(
20400 phba, ndlp, hwqid, expedite);
20402 lpfc_qp_spin_lock_irqsave(&qp->io_buf_list_get_lock, iflag,
20403 qp, alloc_xri_get);
20404 if (qp->get_io_bufs > LPFC_NVME_EXPEDITE_XRICNT || expedite)
20405 lpfc_cmd = lpfc_io_buf(phba, ndlp, hwqid);
20407 lpfc_qp_spin_lock(&qp->io_buf_list_put_lock,
20408 qp, alloc_xri_put);
20409 list_splice(&qp->lpfc_io_buf_list_put,
20410 &qp->lpfc_io_buf_list_get);
20411 qp->get_io_bufs += qp->put_io_bufs;
20412 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
20413 qp->put_io_bufs = 0;
20414 spin_unlock(&qp->io_buf_list_put_lock);
20415 if (qp->get_io_bufs > LPFC_NVME_EXPEDITE_XRICNT ||
20417 lpfc_cmd = lpfc_io_buf(phba, ndlp, hwqid);
20419 spin_unlock_irqrestore(&qp->io_buf_list_get_lock, iflag);
20426 * lpfc_get_sgl_per_hdwq - Get one SGL chunk from hdwq's pool
20427 * @phba: The HBA for which this call is being executed.
20428 * @lpfc_buf: IO buf structure to append the SGL chunk
20430 * This routine gets one SGL chunk buffer from hdwq's SGL chunk pool,
20431 * and will allocate an SGL chunk if the pool is empty.
20435 * Pointer to sli4_hybrid_sgl - Success
20437 struct sli4_hybrid_sgl *
20438 lpfc_get_sgl_per_hdwq(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_buf)
20440 struct sli4_hybrid_sgl *list_entry = NULL;
20441 struct sli4_hybrid_sgl *tmp = NULL;
20442 struct sli4_hybrid_sgl *allocated_sgl = NULL;
20443 struct lpfc_sli4_hdw_queue *hdwq = lpfc_buf->hdwq;
20444 struct list_head *buf_list = &hdwq->sgl_list;
20445 unsigned long iflags;
20447 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
20449 if (likely(!list_empty(buf_list))) {
20450 /* break off 1 chunk from the sgl_list */
20451 list_for_each_entry_safe(list_entry, tmp,
20452 buf_list, list_node) {
20453 list_move_tail(&list_entry->list_node,
20454 &lpfc_buf->dma_sgl_xtra_list);
20458 /* allocate more */
20459 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
20460 tmp = kmalloc_node(sizeof(*tmp), GFP_ATOMIC,
20461 cpu_to_node(smp_processor_id()));
20463 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
20464 "8353 error kmalloc memory for HDWQ "
20466 lpfc_buf->hdwq_no, __func__);
20470 tmp->dma_sgl = dma_pool_alloc(phba->lpfc_sg_dma_buf_pool,
20471 GFP_ATOMIC, &tmp->dma_phys_sgl);
20472 if (!tmp->dma_sgl) {
20473 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
20474 "8354 error pool_alloc memory for HDWQ "
20476 lpfc_buf->hdwq_no, __func__);
20481 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
20482 list_add_tail(&tmp->list_node, &lpfc_buf->dma_sgl_xtra_list);
20485 allocated_sgl = list_last_entry(&lpfc_buf->dma_sgl_xtra_list,
20486 struct sli4_hybrid_sgl,
20489 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
20491 return allocated_sgl;
20495 * lpfc_put_sgl_per_hdwq - Put one SGL chunk into hdwq pool
20496 * @phba: The HBA for which this call is being executed.
20497 * @lpfc_buf: IO buf structure with the SGL chunk
20499 * This routine puts one SGL chunk buffer into hdwq's SGL chunk pool.
20506 lpfc_put_sgl_per_hdwq(struct lpfc_hba *phba, struct lpfc_io_buf *lpfc_buf)
20509 struct sli4_hybrid_sgl *list_entry = NULL;
20510 struct sli4_hybrid_sgl *tmp = NULL;
20511 struct lpfc_sli4_hdw_queue *hdwq = lpfc_buf->hdwq;
20512 struct list_head *buf_list = &hdwq->sgl_list;
20513 unsigned long iflags;
20515 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
20517 if (likely(!list_empty(&lpfc_buf->dma_sgl_xtra_list))) {
20518 list_for_each_entry_safe(list_entry, tmp,
20519 &lpfc_buf->dma_sgl_xtra_list,
20521 list_move_tail(&list_entry->list_node,
20528 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
20533 * lpfc_free_sgl_per_hdwq - Free all SGL chunks of hdwq pool
20534 * @phba: phba object
20535 * @hdwq: hdwq to cleanup sgl buff resources on
20537 * This routine frees all SGL chunks of hdwq SGL chunk pool.
20543 lpfc_free_sgl_per_hdwq(struct lpfc_hba *phba,
20544 struct lpfc_sli4_hdw_queue *hdwq)
20546 struct list_head *buf_list = &hdwq->sgl_list;
20547 struct sli4_hybrid_sgl *list_entry = NULL;
20548 struct sli4_hybrid_sgl *tmp = NULL;
20549 unsigned long iflags;
20551 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
20553 /* Free sgl pool */
20554 list_for_each_entry_safe(list_entry, tmp,
20555 buf_list, list_node) {
20556 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
20557 list_entry->dma_sgl,
20558 list_entry->dma_phys_sgl);
20559 list_del(&list_entry->list_node);
20563 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
20567 * lpfc_get_cmd_rsp_buf_per_hdwq - Get one CMD/RSP buffer from hdwq
20568 * @phba: The HBA for which this call is being executed.
20569 * @lpfc_buf: IO buf structure to attach the CMD/RSP buffer
20571 * This routine gets one CMD/RSP buffer from hdwq's CMD/RSP pool,
20572 * and will allocate an CMD/RSP buffer if the pool is empty.
20576 * Pointer to fcp_cmd_rsp_buf - Success
20578 struct fcp_cmd_rsp_buf *
20579 lpfc_get_cmd_rsp_buf_per_hdwq(struct lpfc_hba *phba,
20580 struct lpfc_io_buf *lpfc_buf)
20582 struct fcp_cmd_rsp_buf *list_entry = NULL;
20583 struct fcp_cmd_rsp_buf *tmp = NULL;
20584 struct fcp_cmd_rsp_buf *allocated_buf = NULL;
20585 struct lpfc_sli4_hdw_queue *hdwq = lpfc_buf->hdwq;
20586 struct list_head *buf_list = &hdwq->cmd_rsp_buf_list;
20587 unsigned long iflags;
20589 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
20591 if (likely(!list_empty(buf_list))) {
20592 /* break off 1 chunk from the list */
20593 list_for_each_entry_safe(list_entry, tmp,
20596 list_move_tail(&list_entry->list_node,
20597 &lpfc_buf->dma_cmd_rsp_list);
20601 /* allocate more */
20602 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
20603 tmp = kmalloc_node(sizeof(*tmp), GFP_ATOMIC,
20604 cpu_to_node(smp_processor_id()));
20606 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
20607 "8355 error kmalloc memory for HDWQ "
20609 lpfc_buf->hdwq_no, __func__);
20613 tmp->fcp_cmnd = dma_pool_alloc(phba->lpfc_cmd_rsp_buf_pool,
20615 &tmp->fcp_cmd_rsp_dma_handle);
20617 if (!tmp->fcp_cmnd) {
20618 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
20619 "8356 error pool_alloc memory for HDWQ "
20621 lpfc_buf->hdwq_no, __func__);
20626 tmp->fcp_rsp = (struct fcp_rsp *)((uint8_t *)tmp->fcp_cmnd +
20627 sizeof(struct fcp_cmnd));
20629 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
20630 list_add_tail(&tmp->list_node, &lpfc_buf->dma_cmd_rsp_list);
20633 allocated_buf = list_last_entry(&lpfc_buf->dma_cmd_rsp_list,
20634 struct fcp_cmd_rsp_buf,
20637 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
20639 return allocated_buf;
20643 * lpfc_put_cmd_rsp_buf_per_hdwq - Put one CMD/RSP buffer into hdwq pool
20644 * @phba: The HBA for which this call is being executed.
20645 * @lpfc_buf: IO buf structure with the CMD/RSP buf
20647 * This routine puts one CMD/RSP buffer into executing CPU's CMD/RSP pool.
20654 lpfc_put_cmd_rsp_buf_per_hdwq(struct lpfc_hba *phba,
20655 struct lpfc_io_buf *lpfc_buf)
20658 struct fcp_cmd_rsp_buf *list_entry = NULL;
20659 struct fcp_cmd_rsp_buf *tmp = NULL;
20660 struct lpfc_sli4_hdw_queue *hdwq = lpfc_buf->hdwq;
20661 struct list_head *buf_list = &hdwq->cmd_rsp_buf_list;
20662 unsigned long iflags;
20664 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
20666 if (likely(!list_empty(&lpfc_buf->dma_cmd_rsp_list))) {
20667 list_for_each_entry_safe(list_entry, tmp,
20668 &lpfc_buf->dma_cmd_rsp_list,
20670 list_move_tail(&list_entry->list_node,
20677 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);
20682 * lpfc_free_cmd_rsp_buf_per_hdwq - Free all CMD/RSP chunks of hdwq pool
20683 * @phba: phba object
20684 * @hdwq: hdwq to cleanup cmd rsp buff resources on
20686 * This routine frees all CMD/RSP buffers of hdwq's CMD/RSP buf pool.
20692 lpfc_free_cmd_rsp_buf_per_hdwq(struct lpfc_hba *phba,
20693 struct lpfc_sli4_hdw_queue *hdwq)
20695 struct list_head *buf_list = &hdwq->cmd_rsp_buf_list;
20696 struct fcp_cmd_rsp_buf *list_entry = NULL;
20697 struct fcp_cmd_rsp_buf *tmp = NULL;
20698 unsigned long iflags;
20700 spin_lock_irqsave(&hdwq->hdwq_lock, iflags);
20702 /* Free cmd_rsp buf pool */
20703 list_for_each_entry_safe(list_entry, tmp,
20706 dma_pool_free(phba->lpfc_cmd_rsp_buf_pool,
20707 list_entry->fcp_cmnd,
20708 list_entry->fcp_cmd_rsp_dma_handle);
20709 list_del(&list_entry->list_node);
20713 spin_unlock_irqrestore(&hdwq->hdwq_lock, iflags);